ECOLOGICAL RISK ASSESSMENT FOR THE OGDEN KAILYARD SITE                    FINAL
                  Baseline Ecological Risk Assessment
                       for the Ogden Railyard Site
                               Ogden, Utah
                                 January 2003
                                 Prepared by:
                   U.S. Environmental Protection Agency, Region
                            999 18th Street, Suite 500
                            Denver, Colorado 80202
                          With technical assistance from:

                          Syracuse Research Corporation
                            999 18th Street, Suite 1975
                            Denver, Colorado 80202

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ECOLOGICAL RISK ASSESSMENT FOR THE OGDEN KAILYARD SITE                     FINAL
                              TABLE OF CONTENTS
EXECUTIVE SUMMARY	ES-1

1.0    INTRODUCTION	U.
      1.1   Purpose	1-1
      1.2   Approach 	1-1
      1.3   Organization	1-2

2.0    SITE CHARACTERIZATION	2J.
      2.1   Site Location  	2-1
      2.2   Site Description	2-1
      2.3   Environmental Setting	2-2

3.0    NATURE AND EXTENT OF CONTAMINATION 	3J.
      3.1   Overview of Site-Specific Investigations 	3-1
      3.2   Data Quality Evaluation	3-2
      3.3   Summary Statistics	3-2

4.0    PROBLEM FORMULATION	4J.
      4.1   Screening-Level ERA Summary	4-1
      4.2   Baseline ERA Site Conceptual Model	4-2
      4.3   Exposure Pathways and Receptors  	4-3
      4.4   Management Goals  	4-6
      4.5   Assessment and Measurement Endpoints 	4-7
      4.6   Weight of Evidence Evaluation	4-11

5.0    RISKS TO AQUATIC RECEPTORS	5J.
      5.1   Hazard Quotient Approach  	5-1
            5.1.2   Risks to Benthic Macroinvertebrates from Direct Contact with
                   Sediment 	5-5
            5.1.3   Risks to Benthic Macroinvertebrates from Direct Contact with
                   Sediment Porewater	5-11
            5.1.4   Risks to Fish Based on Fish Tissue Burdens	5-12
      5.2   Evaluation of Site-Specific Toxicity Tests 	5-14
      5.3   Evaluation of Aquatic Community Surveys  	5-16
      5.4   Weight of Evidence Evaluation	5-17

6.0    RISKS TO TERRESTRIAL PLANTS AND SOIL ORGANISMS  	6J.
      6.1   Hazard Quotient Approach  	6-1

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ECOLOGICAL RISK ASSESSMENT FOR THE OGDEN RAILYARD SITE	FINAL

       6.2    Evaluation of Site-Specific Toxicity Tests  	6-3
       6.3    Evaluation of Terrestrial Community Surveys 	6-3
       6.4    Weight of Evidence	6-3

7.0    RISKS TO WILDLIFE RECEPTORS  	7J,
       7.1    Hazard Index Approach	7-1
             7.1.1  Exposure Assessment	7-2
             7.1.2  COPC Selection	7-3
             7.1.3  Toxicity Assessment 	7-3
             7.1.4  Risk Calculations	7-5
       7.2    Toxicity Equivalency Approach for PCBs  	7-6
             7.2.1  Exposure Assessment	7-7
             7.2.2  Toxicity Assessment 	7-7
             7.2.3  HQ Calculation  	7-9
       7.3    Evaluation of Site-Specific Toxicity Tests  	7-9
       7.4    Evaluation of Wildlife Surveys	7-9
       7.5    Weight of Evidence	7-9

8.0    UNCERTAINTIES  	8J.
       8.1    Uncertainty in the Nature and Extent of Contamination	8-1
       8.2    Uncertainty in Exposure Assessment  	8-2
       8.3    Uncertainties in Effects (Toxicity) Assessment	8-4
       8.4    Uncertainties in Risk Characterization  	8-7
       8.5    Summary of Uncertainties	8-7

9.0    REFERENCES  	9-1

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                                  List of Appendices

Appendix A  Environmental Data Summary Statistics
Appendix B  Wildlife Exposure Profiles
Appendix C  Derivation of Toxicity Benchmarks
Appendix D  COPC Screening Results
Appendix E  Risk Calculations and Detailed Results
                                    List of Figures

Figure 1-1    Ogden Railyard Location Map
Figure 1-2    Eight Step Process for Ecological Risk Assessment at Superfund Sites
Figure 2-1    Ogden Railyard Areas of Interest (AOIs)
Figure 3-1    Location of the DNAPL Zone
Figure 3-2    Exposure Locations for Ecological Receptors
Figure 4-1    Site Conceptual Model for Ecological Exposure
Figure 4-2    Conceptual Approach for Characterizing Population-Level Risks
Figure 4-3    COPC Selection Procedure
Figure 5-1    Aquatic Receptor HQs for Direct Contact with Surface Water (Aluminum)
Figure 5-2    Aquatic Receptor HQs for Direct Contact with Surface Water (Naphthalene)
Figure 5-3    Benthic Macroinvertebrate HQs for Direct Contact with Non-PAH Contaminants
             in Sediment (Selenium)
Figure 5-4    Benthic Macroinvertebrate HQs for Direct Contact with Non-PAH Contaminants
             in Sediment (Aroclor-1260)
Figure 5-5    Benthic Macroinvertebrate HQs for Direct Contact with PAHs in Sediment
             (Based on Non-SIM Analysis) (Benzo[a]pyrene)
Figure 5-6    Benthic Macroinvertebrate HQs for Direct Contact with PAHs in Sediment
             (Based on SIM Analysis) (Acenaphthylene)
Figure 5-7    Benthic Macroinvertebrate HQs for Direct Contact with PAHs in Sediment
             Porewater (Acenaphthene)
Figure 5-8    HQs for Fish Based on Fish Tissue Data (4,4'-DDD and 4,4'-DDE)
Figure 5-9    Flowchart of Approach for Rapid Bioassessment Protocol (RBP) III
Figure 6-1    Terrestrial Receptor HQs for Direct Contact with Surface Soil (Aluminum and
             Aroclor-1260)
                                                                                    in

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                                   List of Tables

Table 3-1     Summary of Studies Performed at the Site
Table 4-1     Summary of Assessment and Measurement Endpoints
Table 5-1     Summary of Risk Category Assignments for Surface Water
Table 5-2     Summary of Risk Category Assignments for Non-PAHs in Sediment
Table 5-3     Summary of Risk Category Assignments for PAHs in Sediment (Based on Non-
             SIM Data)
Table 5-4     Summary of Risk Category Assignments for PAHs in Sediment (Based on SIM
             Data)
Table 5-5     Summary of Risk Category Assignments for PAHs in Porewater
Table 5-6     Summary of Risk Category Assignments for Fish Based on Fish Tissue Data
Table 5-7     Summary of the Site-Specific Sediment Toxicity Tests
Table 5-8     Results of the Benthic Macroinvertebrate Community Structure Assessment
Table 6-1     Summary of Risk Category Assignments for Exposure of Terrestrial Plants and
             Invertebrates to Soil
Table 6-2     Comparison of Background Concentrations of Trace Elements to Measured Site
             and Benchmark Concentrations in Soil
Table 7-1     Exposure Factors for Representative Wildlife Species
Table 7-2     Summary of Total Hazard Index (HI) Across All Exposure Pathways
Table 7-3     List of PCB TEFs
Table 7-4     TEQ Values for PCB Congeners in Aquatic Prey Samples
Table 7-5     Risks to Wildlife from PCBs in Aquatic Prey
Table 8-1     Summary of Qualitative COPCs for Ecological Risk Assessment
Table 8-2     Summary of Uncertainties in the Ecological Risk Assessment

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                         List of Acronyms and Abbreviations

AOI         Area of Interest
BW          Body Weight
C            Concentration
COPC        Chemical Of Potential Concern
DF          Dietary Fraction
DNAPL      Dense Non-Aqueous Phase Liquid
EPC         Exposure Point Concentration
ERA         Ecological Risk Assessment
ESG         Equilibrium Partitioning Sediment Guideline
FCV         Final Chronic Value
GC-MS      Gas Chromatography - Mass Spectrometry
HI           Hazard Index
HQ          Hazard Quotient
IR           Intake Rate
LOAEL      Lowest Observed Adverse Effect Level
LOEC        Lowest Observed Effect Concentration
MATC       Maximum Acceptable Tissue Concentration
NOAEL      No Observed Adverse Effect Level
NOEC        No Observed Effect Concentration
PAH         Polycyclic Aromatic Hydrocarbon
PCB         Polychlorinated Biphenyl
RBA         Relative Bioavailability
RBP         Rapid Bioassessment Protocol
SAP         Sampling and Analysis Plan
SCM         Site Conceptual Model
SEC         Sediment Effect Concentration
SERA        Screening-Level Ecological Risk Assessment
SIM         Selective Ion Monitoring
SSTT        Site-Specific Toxicity Test
SVOC        Semi-Volatile Organic Compound
TCDD        2,3,7,5-Tetrachlorodibenzodioxin
TEF         Toxicity Equivalency Factor
TEQ         TCDD Equivalent Concentration
TOC         Total Organic Carbon
TRV         Toxicity Reference Value
UCL         Upper Confidence Limit
USEPA      United States Environmental Protection Agency
VOC         Volatile Organic Compound

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ECOLOGICAL RISK ASSESSMENT FOR THE OGDEN RAILYARD SITE	FINAL

                               EXECUTIVE SUMMARY

1.0    Introduction

This document is a baseline ecological risk assessment (ERA) for the Ogden Railyard site
located in Ogden, Utah.  The purpose of the ERA is to describe the likelihood, nature, and extent
of adverse effects to ecological receptors resulting from exposure to chemical contaminants
released from the railyard site to surrounding areas.  This information, along with other relevant
information, is used by risk managers to make  decisions whether remedial actions are needed to
protect the environment from site-related chemicals.

2.0    Site Characterization

The Ogden Railyard Site is located in Weber County, Utah, just west of the City of Ogden.
The main operating portion of the railyard site  (the "on-yard" area) contains no permanent water
bodies, has little or no vegetation, and does not contain any habitat suitable for ecological
receptors. For these reasons, no evaluation of ecological risks is needed for the on-yard portion
of the site. However, there are a number of areas around the railyard site where ecological
receptors might be exposed to site-related chemicals, including the following:

       •      The Weber River, which flows from south to north  along the west edge of the site.
             The river has a well-vegetated riparian zone of variable width that separates the
             railyard from the river.

       •      The Ogden River, which flows from east to west along the northern end of the
             site.

       •      The 21st Street Pond, which is located near the northern edge of the site.  Water in
             the pond is obtained from the Ogden River via sluice gates.

The Weber River, the Ogden River, and the 21st Street Pond are all suitable habitat for fish and
other aquatic receptors, and the riparian areas along both rivers are suitable habitat for plants and
a variety of mammalian and avian wildlife species.
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ECOLOGICAL RISK ASSESSMENT FOR THE OGDEN RAILYARD SITE	FINAL
3.0    Nature and Extent of Contamination

The site is of potential ecological concern because of various chemicals that have been released
to the environment on the railyard site. A number of studies have been performed to characterize
the nature and extent of these releases. These investigations were performed in three phases.
The Phase 1 investigation focused mainly on the active on-yard area and the riparian area west of
the yard, and identified the presence of a number of chemicals of potential concern in site soil,
sediment, groundwater, and surface water, including:

       •      Diesel fuel, grease, oils, and associated petroleum hydrocarbons
       •      Chlorinated solvents and associated degradation products
       •      Metals
             Polycyclic aromatic hydrocarbons (PAHs)

The Phase 2 investigation was performed to obtain additional data for on-yard locations, as well
as additional data on the nature and extent of off-yard contamination in areas of potential
ecological concern. During the Phase 2 investigation, two important new concerns associated
with the site were identified:

       •      A large plume of dense non-aqueous phase liquid (DNAPL) was discovered
             below the ground surface at the northern end of the site.  This DNAPL zone is
             suspected to originate at the location of a former Pintsch Gas Process plant that
             produced gas from petroleum products (manufactured gas).  The DNAPL zone
             extends towards the north, coming into direct contact with the east end of the 21st
             Street Pond and extending under the Ogden River.

       •      Polychlorinated biphenyls (PCBs) were detected in tissues of fish collected from
             the 21st Street Pond  as well  as in sediments collected from the 21st Street Pond and
             the Ogden River.

These two new concerns generated the need to collect additional samples specifically designed
to characterize the potential risk to health and the environment from the DNAPL zone and the
PCBs.  This additional sampling event is referred to as the Phase 3 investigation.
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Table ES-1 summarizes the number, type, and location of the samples that have been collected,
and the types of chemical analyses that were performed during these three phases of
investigation. All data from each phase of the site investigation were used in this ERA.

4.0   Problem Formulation

Conceptual Site Model

For the purposes of this ecological assessment, the Weber River and the Ogden River were
divided into a number of reaches, including several locations that are not believed to be impacted
by site-related releases and that serve as reference areas for the site.  These reaches and reference
areas are listed below and are shown in Figure ES-1.
Reach
2 1st Street Pond
Buena Ventura Park Pond
Ogden River - Reach A
Ogden River - Reach B
Ogden River - Reach C
Weber River - Reach A
Weber River - Reach B
Weber River - Reach C
Weber River - Reach D
Description
21st Street Pond (east end, west end) and surrounding areas
Buena Ventura Park Pond and surrounding areas; this area is
used as the reference area for 21st Street Pond
Ogden River upstream (east) of Wall Avenue; this reach is
used as the reference area for Ogden River Reaches B and C
Ogden River downstream (west) of Wall Avenue to the 21st
Street Pond outfall
Ogden River downstream (west) of the 21st Street Pond outfall
to the confluence with the Weber River
Weber River upstream of the Ogden Railyard site, south of
Riverdale Road; this reach is used as the reference area for
Weber River Reaches B, C, and D
Weber River from AOI 9 to 33rd Street
Weber River from 33rd Street to 24th Street
Weber River downstream (north) of 24th Street
Figure ES-2 presents the site conceptual model (SCM) that shows how contaminants from the
site might reach and impact ecological receptors in the exposure areas of concern. As indicated
in the SCM, although there are a number of complete exposure pathways by which ecological
receptors may come into contact with site-related chemicals, not all exposure pathways are likely
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ECOLOGICAL RISK ASSESSMENT FOR THE OGDEN RAILYARD SITE	FINAL
to be of equal concern. For the purposes of this risk assessment, each complete exposure
pathway has been classified as follows:

              The pathway is considered to be of potential concern, and sufficient data exist to
              support a quantitative risk evaluation. These cases are indicated by boxes
              containing a solid circle ( • ). These pathways are the primary focus of this risk
              assessment.

       •      The pathway is considered to be of potential concern, but available data are too
              limited to support a reliable quantitative risk evaluation.  These cases are shown
              by boxes with an open circle ( O ).

              The risk posed by the pathway is likely to be minor, either on an absolute basis
              and/or in comparison to other exposure pathways that affect the same receptor.
              These cases are indicated by boxes with an "X". Because these pathways are
              judged  to be of minor concern, they are not evaluated quantitatively in the ERA.

Management Goal

Management goals are descriptions of the basic objectives which the risk manager at a site
wishes to achieve. The overall management goal identified for ecological health at the Ogden
Railyard site is as follows:

       Ensure adequate protection of ecological systems within the impacted areas of the Ogden
       Railyard site by protecting them from the deleterious effects of acute and chronic
       exposures to site-related contaminants of concern.

Adequate protection is defined as protection of growth, reproduction, and survival of local
populations. That is, the focus is on ensuring the sustainability of the local population rather
than the protection of all individuals in the population. The ecological systems  identified for
adequate protection include terrestrial soil organisms and plant communities,  aquatic life in the
Weber River, Ogden River, and 21st Street Pond, aquatic and terrestrial mammal and bird
populations, and any threatened and endangered species (including candidate species)  and
species of special concern.
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ECOLOGICAL RISK ASSESSMENT FOR THE OGDEN RAILYARD SITE	FINAL
Assessment and Measurement Endpoints

Assessment endpoints are explicit statements that describe the attributes of a population or
community of ecological receptors that are to be protected from site-related releases.
Assessment endpoints are either measured directly or are evaluated through indirect measures.
Measurement endpoints represent quantifiable ecological characteristics that can be measured,
interpreted, and related to the valued ecological components chosen as the assessment endpoints.
Table ES-2 presents the assessment and measurement endpoints used to characterize and
interpret potential ecological risks for the Ogden Railyard site. These measurement endpoints
can be divided into three basic categories:

       Hazard Quotients (HQs)
       Site-specific toxicity tests (SSTTs)
•      Observations of population and community demographics (Pop/Comm. Dem.)

Each of these three basic approaches is described below.

Method 1: Hazard Quotients

A Hazard Quotient (HQ) is the ratio of the estimated exposure of a receptor at the site to a
"benchmark" exposure that does not cause any unacceptable adverse effects:

       HQ = Exposure / Benchmark

If the value of an HQ is less than or equal to one, risk to the exposed individual is judged to be
acceptable.  If the HQ exceeds one, the exposed individual may experience an adverse effect,
with the probability and/or severity of the effect tending to increase  as the magnitude of the HQ
increases.  In cases where a receptor is exposed to the same chemical in more than one medium,
the total hazard is expressed as the Hazard Index (HI), which is calculated as the sum of the HQ
values added across media.

As noted above, the assessment endpoints  at this site focus on the sustainability of exposed
populations, and risks to some individuals in a population may be acceptable if the population is
expected to remain healthy and stable. The fraction of the population that must have HQ values
below  a value of one in order for the population to remain stable is likely  to vary from species to
species. For the purposes of this evaluation, it is assumed that if at least 80% of the individuals

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ECOLOGICAL RISK ASSESSMENT FOR THE OGDEN RAILYARD SITE	FINAL
in an exposed population have HQ values of one or less, risks to the population are likely to be
minimal. Conversely, it is assumed that if more than 20% of the individuals in a population
have HQ values above 1.0, then there is a potential risk to that population. It should be
emphasized that this is a screening level assumption based on professional judgement, and that
actual risks to populations are expected to gradually transition from "acceptable" to
"unacceptable"  as the frequency and magnitude of HQ values above 1.0 increases.

Method 2:  Site-Specific Toxicity Tests

Site-specific toxicity tests measure the response of receptors that are exposed to site media. The
chief advantage of this approach is that site-specific conditions which can influence toxicity are
accounted for.  A potential disadvantage is that, if toxic effects are observed to occur when test
organisms are exposed to a site medium, it is usually not possible to specify which chemical or
combination of chemicals is responsible for the effect.  In addition, it is often difficult to test the
full range of environmental conditions which may occur at the site across time and space, so
these studies are not always adequate to identify the boundary between exposures that are
acceptable and those that are not.

MethodS:  Population Observations

A third approach for evaluating impacts of environmental contamination on ecological receptors
is to make direct observations on the receptors in the field, seeking to determine whether any
receptor population has unusual numbers of individuals (either lower or higher than expected), or
whether the diversity (number of different species) of a particular category of receptors (e.g.,
plants, benthic organisms, birds) is different than expected.  The chief advantage of this
approach is that direct observation of population or community status does not require making
the numerous assumptions and estimates needed in the HQ approach. However, interpreting the
observations is often difficult, because the abundance and diversity of an ecological population
depend on many site-specific factors, and it is often difficult to know what the expected
(non-impacted) abundance and diversity of an ecological population should be in a particular
area. This problem is generally approached by seeking an appropriate "reference area", but it is
sometimes quite  difficult to locate a reference area that is truly a good match for all of the
important habitat variables at the site.
                                                                                     ES-6

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Weight of Evidence Evaluation


Because each of the basic measurement endpoints available has both advantages and limitations,
conclusions based on only one method of evaluation may be misleading. Therefore, the best
approach for deriving reliable conclusions is to combine the findings across all of the methods
for which data are available, taking the relative strengths and weaknesses of each method into
account.


5.0    Risks to Aquatic Receptors

Risks from Surface Water


One line of evidence (the HQ approach) is available to evaluate risks to aquatic receptors from
direct contact exposure to surface water. The findings from this line of evidence are summarized
below.
 Line of Evidence
Findings
 HQ calculations based on surface
 water concentrations in the Weber
 River, Ogden River and 21st Street
 Pond
Most HQ distributions are either below a level of population
concern (at least 80% of all HQ values are < 1.0), or else do
not appear to be site-related. Chronic HQ distributions are of
potential concern for several PAHs in the east end of the 21st
Street Pond.  These are likely site-related, but might reflect
PAHs bound to suspended sediment rather than dissolved in
surface water. If so, risks are likely to be lower than
calculated.
Based on this line of evidence, it is concluded that risks to aquatic receptors from site-related
chemicals in surface water are not of population-level concern to aquatic receptors except
potentially at the east end of the 21st Street Pond.

Sediments

Three lines of evidence are available to evaluate risks from sediments to benthic organisms. The
findings from these lines of evidence are summarized below.
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 Line of Evidence
Findings
 HQ Calculations
Based on bulk sediment concentrations and sediment effects concentration
benchmarks, risks to benthic organisms from non-PAHs in sediment do not
appear to be of population-level concern except possibly for xylenes and
PCBs in the east end of the 21st Street Pond and PCBs in the Ogden River
Reach B.

Based on bulk sediment concentrations and sediment effects concentration
benchmarks, risks from PAHs are of population-level concern in multiple
locations, especially the east end of the 21st Street Pond.

Based on bulk sediment concentrations and equilibrium sediment guideline
benchmarks, risks from PAHs are not of population-level concern at any
location except possibly at the east end of the 21st Street Pond.

Based on porewater measurements, risks from PAHs are not of population-
level concern at any location, including the east end of the 21st Street Pond.
 Site-Specific Toxicity
 Testing
Low toxicity (24-26% mortality) was noted at 1 location in the Weber River
(near a former on-yard lagoon). Toxicity was not observed at 7 other
locations in the Weber River, and not at 3 locations from the 21st Street
Pond.
 Population and
 Community
 Demographics
No evidence of adverse effect in the Weber River (based on Rapid
Assessment Protocol). There may be some shifts in community structure in
the east end of the 21st Street Pond compared to the west end, but
comparison with Buena Ventura Park Pond does not reveal substantial
impacts.
In summary, based on a weight of evidence approach, it is concluded that sediments are not of
population-level concern to benthic organisms at most locations. At the east end of the 21st
Street Pond, population-level risks may occur from xylenes, PCBs, and PAHs. PCBs may also
be of concern in sediments from Ogden River Reach B. However, at both of these locations,
results are mixed and no strong conclusions can be drawn.

Risks from All Pathways Combined

One line of evidence (tissue-based HQ values) is available to evaluate risks to aquatic receptors
(fish) from all aquatic exposure pathways combined. The findings from this line of evidence are
summarized below.
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Line of Evidence
HQ calculations for fish based on
tissue burdens in fish from the Weber
River, the Ogden River and the 21st
Street Pond
Findings
Risks from 4,4'-DDD and 4,4'-DDE are above a level of
concern, but may not be site-related. Other chemicals are
in a range of population-level concern.
not
Based on this line of evidence, it is concluded that risks to fish from site-related chemicals are
not of population-level concern.

Overall Conclusion Regarding Risks to Aquatic Receptors

The weight of evidence combined across all observations indicates that risks to aquatic receptors
from site-related chemicals are not of concern, except possibly for risks to benthic organisms
from xylenes, PCBs and PAHs in the east end of the 21st Street Pond and PCBs in the Ogden
River Reach B.

6.0   Risks to Terrestrial Plant and Soil Organisms

One line of evidence (the HQ approach) is available to evaluate risks to plants and soil
invertebrates from COPCs in soils. The findings from this line of evidence are summarized
below:
Line of Evidence
HQ calculations based on
concentrations measured in soil along
the Weber River riparian zone and
near the 21st Street Pond
Findings
With the exception of PCBs, HQ distributions are either
below a level of population concern, or else do not appear to
be site-related. Risks from PCBs in soil near the 21st Street
Pond are of potential population concern.
Based on this line of evidence, it is concluded that risks from site-related chemicals in surface
soil are not of population-level concern in the riparian area west of the railyard site. Risks from
PCBs in soils near the 21st Street Pond (in abandoned meanders of the Ogden River) may impact
local populations in those areas, but additional data (e.g., site-specific toxicity tests) would be
needed to confirm this conclusion.
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                                             FINAL
7.0    Risks to Wildlife Receptors

Non-PCB Chemicals

One line of evidence (the HI approach) is available to evaluate risks to wildlife receptors from
non-PCB COPCs in water, soil, and the diet. The findings from this line of evidence are
summarized below:
Line of Evidence
HI calculations based on non-PCB
COPC concentrations measured in
soil, water and diet
Findings
HI values are either below
appear to be site-related.
a level of concern or else do not
Based on this line of evidence, it is concluded that risks from non-PCB site-related chemicals in
surface water, surface soil, and the diet are not of population-level concern to wildlife receptors
either in the riparian area along the Weber River west of the railyard site or along the Ogden
River (including the 21st Street Pond) north of the railyard.
PCBs
Two lines of evidence (both based on the HQ approach) are available to evaluate risks to wildlife
receptors from ingestion of PCBs.  The findings from these lines of evidence are summarized
below:
 Line of Evidence
Findings
 HQ calculations based on total Aroclor
 concentrations in soil, sediment and
 the diet
Risks are below a level of concern for all receptors at all
locations along the Weber River, the Ogden River and the
21st Street Pond.
 HQ calculations for semi-aquatic
 wildlife (kingfisher, mallard, mink)
 based on congener-specific data in
 aquatic prey from the Ogden River
 and/or the 21st Street Pond
Depending on the toxicity benchmarks selected, risks could
be of potential concern in the 21st Street Pond (kingfisher,
mink) and the Ogden River near the pond (kingfisher,
mallard, mink). Risk levels are likely to be low to moderate.
Based on the judgement that risks from PCBs are more reliably evaluated using the congener-
specific approach than on the total Aroclor approach, it is concluded that PCBs may pose risks of
adverse reproductive effects for specific individuals or family groups of semi-aquatic
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ECOLOGICAL RISK ASSESSMENT FOR THE OGDEN RAILYARD SITE	FINAL
mammalian (mink) and avian (kingfisher, mallard) receptors residing along the Ogden River in
the vicinity of the 21st Street Pond (the location where PCB levels are highest in fish and benthic
macroinvertebrates).  These risks to individuals are likely to be low to moderate, but because the
size of the local populations may be limited, population-level risks are of potential concern.

8.0    Uncertainties

Quantitative evaluation of ecological risks is often limited by uncertainty regarding a number of
important data, including exposure, toxicity, and risk factors. This lack of knowledge is usually
circumvented by making estimates based on whatever limited data are available, or by making
assumptions based on professional judgement when no reliable data are available. Because of
these assumptions and estimates, the results of the risk calculations are themselves uncertain, and
it is important for risk managers and the public to keep this in mind when interpreting the results
of a risk assessment.

Table ES-3 summarizes the main sources of uncertainty in the ecological risk assessment at this
site.  As seen, some sources of uncertainty tend to underestimate risk,  while other sources of
uncertainty generally tend to overestimate risk.  Thus, all of the HQ and HI values calculated and
presented in this ERA section should be viewed as having substantial uncertainly. Because of
the inherent conservatism in the derivation of most of the exposure estimates and the toxicity
benchmarks, these HQ and HI values should generally be viewed as being more likely to be high
than low, and should be interpreted in a weight-of evidence approach based on other types of
available information as well.

9.0    Conclusions

Based on the available data, it is concluded that population-level risks to aquatic, terrestrial, and
wildlife receptors are minimal at most locations around the Ogden Railyard Site. Exceptions to
this conclusion include the following:

       The HQ approach predicts that risks to benthic organisms from PCBs in sediment are
       above a level  of population concern in the Ogden River near the 21st Street Pond.
       However, there  are no other lines of evidence to confirm or refute this prediction.

•      The HQ approach predicts that risks to benthic organisms are above a level of concern
       due to PAHs and xylenes in sediment in the east end of the 21st Street Pond (in the area

                                                                                   ES-ll

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ECOLOGICAL RISK ASSESSMENT FOR THE OGDEN RAILYARD SITE	FINAL
       where the DNAPL plume has intersected the pond).  The risk from PAHs is predicted
       using the HQ approach using one set of sediment toxicity benchmarks, but not on two
       other approaches. Direct toxicity testing of sediments from the 21st Street Pond did not
       demonstrate the sediments were toxic, but the test organisms may not have had
       substantial contact with the sediment.

       Risks to semi-aquatic wildlife receptors (kingfisher, mallard, mink) may be significant
       for individuals that ingest PCBs in aquatic prey from the 21st Street Pond and/or from the
       Ogden River near the pond.  These risks are based on calculated HQs, and data from
       other lines of evidence are not available.  Because the size of the exposed population may
       be small, population-level risks are of potential concern.
                                                                                  ES-12

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     0
o
                                              S p r i n g s
                                              Springs (symbol b a o k g r o u n d )
                                              Railroad
                                          Roads
                                              Major Roads
                                              P rim a ry Roads
                                              Secondary Roads
                                              Minor  Roads
                                              Stream s
                                          W ate r Bodies
                                              Lake, Pond. Perennial Stream
                                              Reservoir
                                              M arsh
                              Figure ES-1
              Exposure Locations for Ecological Receptors
     Baseline Ecological Risk Assessment for the Ogden Roily ard Site

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                                                                                                                                      Aquatic Receptors
                                                                                                             Fish
    Benthic
Macroinvertebrate
  Mammalian
Piscivore (mink)
Avian Piscivore
  (kingfisher)
Avian Omnivore
   (mallard)
 LEGEND:
              I    Pathway is not complete; no evaluation required
 	X	    Pathway is complete, but is judged to be minor;  qualitative evaluation

 	O	    Pathway is complete and could be significant; however, data are lacking to perform quantitative assessment; qualitative evaluation

 	•	    Pathway is complete and could be significant; quantitative evaluation
                                                                                      Figure ES-2
                                                                  Site Conceptual Model for Ecological Exposure
                                                         Baseline Ecological Risk Assessment for the Ogden Railyard Site
Fig 4-1  Eco SCM.xls

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                                 Table ES-1.  Summary of Studies Performed at the Site
Phase
1
2
Study
Safety-Kleen
1998
USEPA/ERTC
2001
Medium
Surface Soil
Sediment
Surface water
Surface Soil
Sediment
Surface Water
Fish Tissue
Number and Location
13 samples from Weber River riparian zone
2 samples from 21st Street Pond
15 samples from Weber River
1 sample from Ogden River
3 samples from 21st St Pond
1 sample from Ogden River
14 samples from Weber River
1 sample from 21st Street Pond
9 samples from Weber River riparian zone
3 samples from 21st Street Pond
(one measured directly at a bank seep)
1 sample from 33rd Street Slough
2 samples from AOI 10 Drainage Ditch
1 sample from Burch Creek
1 sample from Buena Ventura Park Pond
1 sample from Ogden River
1 sample from Roundhouse Drainage Ditch
1 sample from Strongs Creek
10 samples from Weber River
2 samples from 21st Street Pond
(one measured directly at a bank seep)
1 sample 33rd Street Slough
2 samples from Burch Creek
1 sample from Buena Ventura Park Pond
1 sample from Ogden River
1 sample from Roundhouse Drainage Ditch
3 samples from Strongs Creek
12 samples from Weber River
56 samples from 21st Street Pond
Analytes
Metals, Pesticides, PAH, PCB (as Aroclor),
TPH, SVOC, VOC
Metals, Pesticides, PAH, PCB (as Aroclor),
SVOC, VOC
Metals, Pesticides, PAH, PCB (as Aroclor),
TPH, SVOC, VOC
VOC, SVOC, Pesticides, PCB (as Aroclor),
Metals
VOC, SVOC, Pesticides, PCB (as Aroclor),
Metals, TOC, TPH
VOC, SVOC, Metals, Hardness, TSS, TOC,
TPH
SVOC, PAH, Pesticides, PCB (as Aroclor)
Table ES-l.wpd
8/21/02
Page Iof2

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                         Table ES-3 Summary of Uncertainties in the Ecological Risk Assessment
Assessment
Component
Nature and Extent
of Contamination
Exposure
Assessment
Effects (Toxicity)
Assessment
Risk
Characterization
Description
Samples collected may not be fully representative of variability in space or
time, especially if the number of samples is small.
Analytical results may be imprecise.
Some exposure pathways were not evaluated.
Some chemicals were not evaluated because chemical was never detected,
but detection limit was too high to detect the chemical if it were present at a
level of concern.
Exposure parameters for wildlife receptors are based on studies at other
sites.
Exposure point concentrations for wildlife receptors are based on a
conservative estimate of the mean concentration in the exposure area.
Absorption from site media is assumed to be the same as in laboratory
studies.
Many chemicals lack reliable toxicity benchmarks for some receptors for
some media; these chemicals are not evaluated.
Available toxicity benchmarks are often based on limited data, and values
must be extrapolated across species.
Wildlife receptors selected as representative species may not capture the
full range of sensitivities in site receptors.
Site-specific toxicity testing of sediments did not employ organisms that
burrow into sediment.
Aquatic toxicity benchmarks are based on a wide range of species, many of
which do not occur at this site.
Interactions between chemicals are difficult to account for; effects of one
chemical may increase, decrease, or have no effect on other chemicals.
Estimation of population-level effects from HQ calculations is difficult;
effects assumed to be unlikely when >80% or more had HQ < 1, but this is
an assumption and may vary from receptor to receptor.
Likely Direction of Error
Unknown
Unknown
Underestimate of risk
Underestimate of risk
Unknown
Overestimate of risks
Probably overestimate
risk (especially metals)
Underestimation of risk
Unknown
Unknown
Underestimation of risk
Likely to overestimate
risk
Unknown
Unknown
Likely Magnitude of Error
Probably small
Probably small
Probably small, except possibly for
dietary ingestion by benthic organisms
and direct contact of bottom-feeding fish
with PAHs or PCBs in sediment
Usually small
Probably small
Possibly significant
Possibly significant
Probably small in most cases
Unknown, could be significant
Probably small
Could be significant
Probably small
Unknown, but probably small
Unknown, probably small in most cases
Table ES-3 Uncertainty Summary.wpd

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                                 Table ES-1. Summary of Studies Performed at the Site
Phase
2 (cont.)
3
Study
Forrester Group
(various reports
1998-2001)
USEPA 2002
Medium
Surface Soil
Sediment
Surface Water
Sediment
Sediment
Porewater
Soil
Fish Tissue
Benthic Tissue
Number and Location
9 samples from 21st St Pond
40 samples from Weber River
22 samples from 21st St Pond
3 samples from Buena Ventura Park
17 samples from Ogden River
10 samples from Weber River
19 samples from 21st St Pond
3 samples from Buena Ventura Park
6 samples from Ogden River
23 samples from Weber River
10 samples from 21st Street Pond
2 samples from Buena Ventura Park Pond
14 samples from Ogden River
5 sample from Pioneer Power Plant Aqueduct
5 samples from Weber River
2 samples from Wall Avenue Storm Drain
5 samples from 21st Street Pond
3 samples from Ogden River
6 samples from 21st Street Pond
(in abandoned meanders around pond)
6 samples from 21st Street Pond
2 samples from Buena Ventura Park Pond
12 samples from Ogden River
2 samples from Weber River
1 samples from Pioneer Power Plant Aqueduct
1 samples from Buena Ventura Park Pond
3 samples from Ogden River
Analytes
Metals, PAH, SVOC, VOC
Metals, PAH, PCB, SVOC, VOC
Metals, PAH, PCB, SVOC, VOC
SVOC, PAHs (analyzed via both BNA and
BNA SIM), Pesticides, PCB (as Aroclor), PCB
(as congeners)
SVOC, VOC, PAHs
SVOC, VOC, PAHs, Pesticides, PCB (as
Aroclor)
PAHs, PCB and Dioxins/Furans (as congeners)
PCB (as congeners)
Table ES-l.wpd
8/21/02
Page 2 of 2

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                                                    Table ES-2
                              Summary of Assessment and Measurement Endpoints

                         Baseline Ecological Risk Assessment for the Ogden Kailyard Site
    Receptor
           Assessment End point
                 Measurement End point
                                                           Comparison of sampling location-specific chemical
                                                           concentrations in surface water to National Ambient Water
                                                           Quality Criteria (AWQC).
                                                           Comparison of sampling location-specific chemical
                                                           concentrations in sediment to benthic macroinvertebrate
                                                           toxicity benchmarks.
     Aquatic
   Community
Protection of aquatic invertebrates and fish
from adverse effects related to exposure to
chemicals in surface water and sediment.
Comparison of sampling location-specific chemical
concentrations in sediment porewater to benthic
macroinvertebrate toxicity benchmarks.
                                                           Evaluate the toxicity of site sediment to Chironomus tenons
                                                           and Hyalella azteca (growth and survival) through laboratory
                                                           testing.
                                                           Benthic invertebrate community structure, including density
                                                           and diversity (taxa richness) of benthic organisms.
                                                           Comparison of chemical concentrations in fish tissue to
                                                           maximum allowable tissue concentration (MATC) toxicity
                                                           benchmarks for fish.
    Terrestrial
   Community
Protection of terrestrial plants and terrestrial
soil invertebrates from adverse effects related
to exposure to chemicals in surface soil.
Comparison of sampling location-specific chemical
concentrations in soil to toxicity screening benchmarks for
terrestrial plants and terrestrial soil invertebrates.
     Wildlife
   Community
Protection of wildlife from adverse effects to
growth, reproduction, or survival related to
exposure to chemicals in surface water,
sediment, soil, benthic macroinvertebrates,
and fish.
Comparison of the reach-specific chemical doses estimated
from exposure point concentrations (EPCs) in surface water,
sediment, soil, and aquatic food items to toxicity reference
values (TRVs) for wildlife.
Table ES-2 A&M Endpoints.xls
2/12/2003

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ECOLOGICAL RISK ASSESSMENT FOR THE OGDEN RAILYARD SITE	FINAL
1.0    INTRODUCTION

1.1    Purpose

This document is a baseline ecological risk assessment (ERA) for the Ogden Railyard site
located in Ogden, Utah (Figure 1-1). The purpose of the ERA is to describe the likelihood,
nature, and extent of adverse effects to ecological receptors resulting from exposure to
contaminants released from the railyard to surrounding areas as a result of past or present site
activities. This information, along with other relevant information, is used by risk managers to
make decisions whether remedial actions are needed to protect the environment from site-related
releases. If remediation is warranted, an investigation is performed to evaluate the relative
merits of a range of alternative remedial actions which might be undertaken to achieve risk
management goals at the site.

An evaluation of potential risks to human receptors from site-related contamination is presented
in a separate report (USEPA 2003).

1.2    Approach

This ERA was performed in accordance with current United States Environmental Protection
Agency (USEPA) guidance for ecological  risk assessments (USEPA 1992, 1997a, 1998).  The
general sequence of steps used to carry out an ERA at a Superfund site is illustrated in Figure 1-2
(USEPA 1997a). It is important to realize that the eight steps shown in Figure 1-2 are not
intended to represent a linear sequence of mandatory tasks. Rather,  some tasks may proceed in
parallel, some tasks may be performed in a phased or iterative fashion, and some tasks may be
judged to be unnecessary at certain sites.

At this site, the ecological risk assessment process was initiated by performing a screening-level
ecological risk assessment (SERA) in March of 2001 (USEPA 2001b).  Because a SERA
normally uses a number of simplifying assumptions and approaches and is intentionally
conservative, the SERA was not intended to support any final quantitative conclusions about the
magnitude of the potential ecological risks. Rather, the SERA provided preliminary information
on the potential for adverse effects to aquatic receptors (including benthic invertebrates and fish)
exposed via direct contact to chemicals of potential concern (COPCs) in surface water and
sediments; to terrestrial plants and soil invertebrates exposed via direct contact to soils; and to
terrestrial wildlife receptors exposed via ingestion of surface water,  sediments, soils, and dietary

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ECOLOGICAL RISK ASSESSMENT FOR THE OGDEN RAILYARD SITE	FINAL
items.  The SERA concluded that risks from site-related contaminants could not be excluded for
any of these ecological receptors, and identified data that would be needed for a more detailed
ecological risk evaluation.

Following completion of the SERA, additional data collection efforts were conducted by the
USEPA and the Union Pacific Railroad to support a more detailed and thorough evaluation of
ecological impacts at the site. These efforts included collection of additional abiotic and biotic
samples, site-specific sediment toxicity testing, and an analysis of the  aquatic habitat and benthic
communities in potentially impacted surface waters.  This report utilizes the new data along with
the historical data to provide an updated and refined ecological  risk evaluation for the site.

1.3    Organization

In addition to this introduction, the ERA report is organized into the following main sections.

       Section 2 - This section details the location, description, environmental setting, and
       history of the Ogden Railyard site.

       Section 3 - This section discusses the available data for the Ogden Railyard Site
       including a description of the nature and extent of contamination present in surface water,
       sediment, surface soils, and biological  tissues.

       Section 4 - This section presents the ecological problem formulation, including a
       summary of the SERA findings  and conclusions, the site conceptual model, the
       presentation of assessment and measurement endpoints, and a description of the basic
       methods used in the assessment.

       Section 5 - This section presents the ecological risk characterization for the aquatic
       receptors of concern, including fish and benthic macroinvertebrates.

       Section 6 - This section presents the ecological risk characterization for terrestrial
       receptors of concern, including plants and soil organisms.

       Section 7 - This section presents the ecological risk characterization for wildlife receptors
       of concern.
                                                                                       1-2

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ECOLOGICAL RISK ASSESSMENT FOR THE OGDEN RAILYARD SITE	FINAL
       Section 8 - This section provides a summary of the main uncertainties that limit
       confidence in the risk characterization for each of the exposure areas and classes of
       ecological receptors evaluated at the site.

       Section 9 - This section provides citations for all data, methods, studies, and reports
       utilized in the ERA.
                                                                                      1-3

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ECOLOGICAL RISK ASSESSMENT FOR THE OGDEN RAILYARD SITE	FINAL
2.0    SITE CHARACTERIZATION

2.1    Site Location

Ogden Railyard is located in Weber County, Utah, just west of the City of Ogden (Figure 1-1).
The active railyard area extends from Riverdale Road on the south to the 20th Street overpass on
the north, a distance of 3.4 miles. The railyard is bounded on the west by the Weber River and
on the east by the developed area of the City of Ogden.

2.2    Site Description

The site was first used as a railyard by the Union Pacific Railroad and the Central Pacific
Railroad (the predecessor of the Southern Pacific Railroad) in 1869.  Since that time, four
railroad companies (Union Pacific, Southern Pacific, Denver and Rio Grande Western, and the
Ogden Union Railway and Depot Company) built and operated on various portions of the site.
The Southern Pacific and Denver and Rio Grande Western Railroads operated in the northern
portion of the site, while the Union Pacific Railroad and Ogden Union Railway and Depot
Company operated in the southern portion of the site.  With the completion of the Union Pacific-
Southern Pacific merger in 1996, the entire railyard is  currently under the ownership of the
Union Pacific Railroad, with the exception of the facility owned and operated by Atlas Steel
(Forrester Group 2002).

Railroad facilities previously located at the site included coal yards, freight houses, passenger
service depots, switching yards, machine shops, boiler shops, transfer tracks, oil/water treatment
plants, fuel storage tanks, cold storage houses, warehouses, offices, turntables, and roundhouses.
Historically, there was a plant in the northern part of the yard that manufactured Pintsch gas
(used to light rail cars) from a petroleum-based feedstock. At present, use of the remaining
facilities at the site has declined significantly and the majority of the old shop buildings have
been demolished.

For convenience in site investigation activities, potential source areas of contamination  in soil
and groundwater at the site have been identified as "Areas of Interest" (AOIs). Figure 2-1  shows
these on-site AOIs and their proximity to off-site areas of potential ecological concern.
                                                                                      2-1

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ECOLOGICAL RISK ASSESSMENT FOR THE OGDEN RAILYARD SITE	FINAL
2.3    Environmental Setting

The operating portion of the railyard site (the "on-yard" area) contains no permanent water
bodies, has little or no vegetation, and does not contain any habitat suitable for ecological
receptors. For these reasons, no evaluation of ecological risks is needed for the on-yard portion
of the site.  However, there are a number of areas around the railyard site where ecological
receptors might be exposed to site-related chemicals.  These are described and discussed below.

Weber River

The railyard occupies the floodplain on the east side of the Weber River.  The Weber River is
designated by the state as "protected for nongame fish, water fowl, shore birds and other aquatic-
oriented wildlife, including the necessary aquatic organisms in their food chain" (Class 3C, 3D)
(UDEQ 2001).

At present,  four surface drainage ditches cross through the railyard and discharge into the Weber
River.  These drainages include: AOI 9 (Burch Creek), AOI 10 (Storm Drain), 33rd Street
Slough, and AOI 29 (Strongs Creek), as shown in Figure 2-1. Before construction of the holding
ponds and sludge pits in AOI 34 (Waste Water Treatment Plant) in 1960, an irrigation canal ran
southward across the present east side of the plant to the Weber River (Safety-Kleen 1998).
Some of the water flowing in these ditches originates in the city east of the site (Forrester Group
2002).

Ogden River

The Ogden River originates at the Pineview Reservoir, located east of the City of Ogden in the
Wasatch Mountain Range, and flows from east to west along the northern end of the site.
Upstream (east) of the railyard, the Pioneer Power plant aqueduct and a City of Ogden storm
sewer (near Wall Avenue) discharge into the Ogden River.  In many locations downstream of the
storm sewer outfall, the riverbanks have been partially channelized and built up with fill
materials such  as concrete and car bodies to confine river flow (Forrester Group 200Ib). Near
the 21st Street Pond, the river has several meanders before its confluence with the Weber River.
The Ogden River and its tributaries from the Pineview dam to its confluence with the Weber
River are designated as "protected for cold water species of game fish and other cold water
aquatic life, including the necessary aquatic organisms in their food chain" (Class 3 A) (UDEQ
2001).

                                                                                     2-2

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ECOLOGICAL RISK ASSESSMENT FOR THE OGDEN RAILYARD SITE	FINAL
There are no known surface drainages from the railyard portion of the site which discharge
directly to the Ogden River.  However, the Ogden River may be influenced by site-related
contaminants in groundwater or subsurface soil (DNAPL and PAHs), and surface water runoff
from the vicinity of the 21st Street Pond may enter the Ogden River following storm events.

21st Street Pond

A pond known locally as the 21st Street Pond is located near the northern edge of the site.  The
pond was excavated in 1973 as a borrow pit for the construction of the 21st Street overpass.
Water levels in the  pond are mainly controlled by sluice gates at the inlet (east end) and outlet
(north-west end). These gates are connected directly to the Ogden River. Over the past few
years, the water level in the pond has been purposely kept low to provide better fishing access
from the bank (Forrester Group 200Ib).  Previously, trout were stocked twice a year at the pond
to promote fishing.  In June 2000, the stocking program was suspended, mainly due to concerns
over potential risks to humans from ingestion offish from the pond (Forrester Group 200 Ib).
                                                                                    2-3

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ECOLOGICAL RISK ASSESSMENT FOR THE OGDEN RAILYARD SITE	FINAL
3.0    NATURE AND EXTENT OF CONTAMINATION

3.1    Overview of Site-Specific Investigations

The site is of potential ecological concern because of various chemicals that have been released
to the environment on or near the site. In order to address this concern, in 1999 the Union
Pacific Railroad entered into an Administrative Order on Consent with the USEPA to investigate
and address environmental contamination associated with the railyard.  A Phase 1 Remedial
Investigation of the nature and extent of contamination at the site was performed in 1998
(Safety-Kleen 1998).  The Phase 1 investigation focused mainly on the on-yard portion of the
site and the riparian area west of the yard. The study identified the presence of a number of
chemicals of potential concern in soil, sediment, groundwater, and surface water, including:

             Diesel fuel, grease, oils, and associated petroleum hydrocarbons
             Chlorinated solvents and associated degradation products
             Metals
             Polycyclic aromatic hydrocarbons (PAHs)

The USEPA reviewed the adequacy of the Phase 1 data to support reliable human health and
ecological risk evaluations, and identified several  data gaps. The USEPA recommended
additional sampling and analysis of environmental media that was needed to support risk
assessment at site-related locations.  This additional sampling is referred to as the Phase 2
investigation. During Phase 2, sampling and analysis was conducted both by USEPA
(USEPA/ERTC 2001) and the Forrester Group (Forrester Group 2001a,b). These data were
consolidated in the draft remedial investigation for the railyard site (Forrester  Group  2002).

During the Phase 2 investigations, two important new concerns associated with the site were
identified:

       A large plume of dense non-aqueous phase liquid (DNAPL) was discovered below the
       ground surface (Forrester Group 200 Ib) at the north end of the railyard.  This DNAPL
       zone is suspected to originate at the location of the Pintsch gas plant that operated near
       AOI 34 from 1891 to no later than 1935. As shown in Figure 3-1, the DNAPL plume
       extends towards the north, coming into direct contact with the east end of the 21st Street
       Pond and extending under the Ogden River.
                                                                                    3-1

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ECOLOGICAL RISK ASSESSMENT FOR THE OGDEN RAILYARD SITE	FINAL
•      Polychlorinated biphenyls (PCBs) were detected in tissues offish collected from the 21st
       Street Pond as well as in sediments collected from the 21st Street Pond and the Ogden
       River (USEPA/ERTC 2001).

These two new concerns generated the need to collect additional samples specifically designed
to characterize the potential risk to health and the environment from the DNAPL zone and the
PCBs.  This additional sampling event is referred to as the Phase 3 investigation. A field
sampling and analysis plan (SAP) was prepared in July 2001 (USEPA 200la) and the Phase 3
samples were collected in late July and early August of 2001. The final results from the Phase 3
sampling effort were summarized in October 2002 (USEPA 2002).

Table 3-1 summarizes the number, type, and location of the samples that have been collected,
and the types of chemical analyses that were performed during these three phases of
investigation.

3.2    Data Quality Evaluation

As noted above, investigations of the nature and extent of environmental contamination at the
site have been conducted in three  phases.  Each of these phases of investigation was performed
in accord with a well-prepared SAP, and each phase of study included sufficient quality
assurance data to demonstrate that the data collected were reliable and relevant. On this basis,
all data from each phase of the site investigation were selected for use in the ERA.

Detailed analytical  data for all media for all site investigations are available in electronic format
upon request.

3.3    Summary Statistics

For the purposes of this assessment, areas of potential ecological exposure along the Weber
River and the Ogden River were divided into a number of reaches, including several locations
that are not believed to be impacted by site-related releases and that serve as reference areas for
the site. These reaches and reference areas are listed below and are shown in Figure 3-2.
                                                                                    3-2

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ECOLOGICAL RISK ASSESSMENT FOR THE OGDEN KAILYARD SITE
FINAL

Reach
2 1st Street Pond
Buena Ventura Park Pond
Ogden River - Reach A
Ogden River - Reach B
Ogden River - Reach C
Weber River - Reach A
Weber River - Reach B
Weber River - Reach C
Weber River - Reach D
Description
21st Street Pond (east end, west end) and surrounding areas
Buena Ventura Park Pond and surrounding areas; this serves
as a reference area for 21st Street Pond
Ogden River upstream (east) of Wall Avenue; this serves as a
reference area for Ogden River Reaches B and C
Ogden River downstream (west) of Wall Avenue to the 21st
Street Pond outfall
Ogden River downstream (west) of the 21st Street Pond outfall
to the confluence with the Weber River
Weber River upstream of the Ogden Railyard site, south of
Riverdale Road; this serves as a reference area for Weber
River Reaches B, C, and D
Weber River from AOI 9 to 33rd Street
Weber River from 33rd Street to 24th Street
Weber River downstream (north) of 24th Street

Appendix A provides summary statistics (detection frequency, average, minimum, maximum)
for each analyte in each medium in each exposure area.
                                                                                3-3

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ECOLOGICAL RISK ASSESSMENT FOR THE OGDEN RAILYARD SITE	FINAL
4.0    PROBLEM FORMULATION

Problem formulation is a systematic planning step that identifies the major concerns and issues
to be considered in the ERA, and a description of the basic approach that will be used to
characterize the potential risks that may exist (USEPA 1997a). Problem formulation usually
begins by development of a conceptual site model that identifies sources of chemical release to
the environment, evaluates the fate and transport of chemicals in the environment, and identifies
exposure pathways of potential concern for ecological receptors.  Based on the conceptual site
model, assessment endpoints, measurement endpoints, and testable hypotheses are identified that
form the basis of the ERA.

As discussed in USEPA guidance (USEPA 1997a), problem formulation is an iterative process,
undergoing refinement as new information and findings become available. The problem
formulation for this baseline ecological risk assessment began with a SERA that was completed
for the site in March 2001 (USEPA 200 Ib).  The purpose of the SERA was to determine if there
was a need  for additional data collection and/or additional risk assessment at the site, and to help
focus any additional effort on the main issues of concern. Because a SERA is intentionally
simplistic and conservative, it is not intended to support any final quantitative conclusions about
the magnitude of the potential ecological risks identified.  The following section summarizes the
main findings of the SERA, which in turn helped define the problem formulation for the baseline
risk assessment.

4.1    Screening-Level ERA Summary

Sources of Contamination

At the time of the SERA, the principle source of potential concern was the railyard area, which
was known from the Phase 1 investigation to contain elevated levels of a number of potentially
toxic chemicals in soil and groundwater. The chief area of potential ecological concern was the
Weber River and the riparian area along the west side of the site.  This was based on the
expectation that site-related contaminants in soil might erode from the railyard area into the
riparian area and then into the Weber River. In addition, Phase 1 data indicated that chemical
contamination was present in surface water and seep water at the 21st  Street Pond (Safety-Kleen
1998). The source of the contamination at the 21st Street Pond was not known at that time.
                                                                                    4-1

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ECOLOGICAL RISK ASSESSMENT FOR THE OGDEN RAILYARD SITE	FINAL
Ecological Receptors of Potential Concern

Ecological receptors evaluated in the SERA included terrestrial receptors (plants and soil
invertebrates) and wildlife receptors in the Weber River riparian zone, and aquatic species (fish
and benthic macroinvertebrates) in the Weber River and the 21st Street Pond.

Exposure Pathways Evaluated

Exposure pathways that were quantitatively evaluated in the SERA included:

       •      Direct contact of aquatic receptors with surface water
       •      Direct contact of benthic macroinvertebrates with sediment
             Direct contact of terrestrial plants and soil invertebrates with soil
             Ingestion of surface water and soil by wildlife receptors

Summary of Screening-Level Risk Findings

Based on the preliminary risk characterization in the SERA, none of the exposure pathways
considered in the SERA could be excluded, and further evaluation was recommended for all
exposure pathways.  However, in many cases, the available information on the nature and extent
of contamination was limited, and the SERA identified  a number of data areas where additional
information was needed to help improve the reliability and accuracy of the risk assessment.
These data gaps were considered in the development of the Phase 2 sampling and analysis plan
(USEPA 1999a).

4.2     Baseline ERA Site Conceptual Model

Figure 4-1 presents the site conceptual model (SCM) for the baseline ecological risk assessment.
Because no pathways could be excluded as a result of the  SERA, this site model is very similar
to the site model that was developed for the SERA.

As indicated in the SCM, although there are a number of complete exposure pathways by which
ecological receptors may come into contact with site-related chemicals, not all exposure
pathways are likely to be of equal concern. For the purposes of this risk assessment, each
complete exposure pathway has been classified as follows:
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ECOLOGICAL RISK ASSESSMENT FOR THE OGDEN RAILYARD SITE	FINAL
       •      The pathway is considered to be of potential concern, and sufficient data exist to
              support a quantitative risk evaluation. These cases are indicated by boxes
              containing a solid circle ( • ). These pathways are the primary focus of this risk
              assessment.

              The pathway is considered to be of potential concern, but available data are too
              limited to support a reliable quantitative risk evaluation.  These cases are shown
              by boxes with an open circle ( O ).

       •      The risk posed by the pathway is likely to be minor, either on an absolute basis
              and/or in comparison to other exposure pathways that affect the same receptor.
              These cases are indicated by boxes with an "X". Because these pathways are
              judged to be of minor concern, they are not evaluated quantitatively in the ERA.

The following section provides a discussion of these exposure pathways.

4.3    Exposure Pathways and Receptors

Receptors identified for this assessment include aquatic receptors (fish and benthic
macroinvertebrates), terrestrial receptors (plants and soil invertebrates),  and wildlife receptors
(avian and mammalian). These receptors may be potentially exposed to chemical contamination
via one  or more exposure media (Figure 4-1), including surface water, sediment,  sediment
porewater, aquatic food items, surface soil, and terrestrial food items. The following identifies
which pathways are of chief concern at this site and which were selected for quantitative
evaluation.

Aquatic Receptors

              The main pathway of exposure for all aquatic receptors is direct contact with
              surface water. This pathway was evaluated quantitatively for fish and benthic
              macroinvertebrates.

       •      Direct contact with sediment and porewater is a potentially significant pathway
              for benthic macroinvertebrates. Data are available to allow an assessment of risks
              from direct contact with sediment and porewater, and these pathways were
              evaluated quantitatively.

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       •       Most fish have relatively low direct contact with sediment, and concern over this
              pathway is generally minor. However, bottom-feeding fish such as catfish,
              suckers, and carp may have sufficient direct contact with sediments that adverse
              effects such as increased incidence of tumors may occur when the sediment
              contains high  levels of PAHs or PCBs (e.g., Pinkney et al. 2001). However, at
              present the evidence is not sufficient to establish a cause-effect relationship
              between direct contact with sediments and increased incidence of tumors
              (Pinkney et al. 2001), and EPA does not have an approach for quantifying
              potential risks to fish from this exposure pathway.  Therefore, this pathway was
              evaluated qualitatively rather than quantitatively.

              Ingestion of aquatic food web items is a pathway of potential concern for fish and
              benthic invertebrates. Likewise, incidental ingestion of sediment by these
              receptors might occur in some cases.  Quantitative evaluation of oral exposure of
              aquatic receptors is limited by lack of oral toxicity values for aquatic receptors, so
              ingestion exposures are  evaluated qualitatively rather than quantitatively for fish
              or benthic macroinvertebrates.

Terrestrial Plants and Soil Invertebrates

       •       The primary exposure pathway for both terrestrial plants and soil invertebrates is
              direct contact with contaminated soils. This pathway was evaluated
              quantitatively for both receptors.  For soil invertebrates, this evaluation includes
              both direct contact and soil ingestion.

Wildlife Receptors

       •       Wildlife receptors (birds, mammals) may be exposed by ingestion of surface
              water, and this pathway was evaluated quantitatively.

              Wildlife receptors (birds, mammals) may be exposed by ingestion of food web
              items (either from the terrestrial environment and/or from the aquatic
              environment).  Data are available on the tissue levels of chemicals in fish and
              benthic macroinvertebrates (see Section 3), and risks to wildlife from ingestion of
              fish and benthic macroinvertebrates were evaluated quantitatively.  Data are not

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              available on the tissue levels of site-related chemicals in other types of food web
              items (e.g., plants, soil invertebrates), and estimation of tissue levels by
              mathematical modeling is judged to be too uncertain and unreliable to warrant
              evaluation. Therefore, dietary exposure of wildlife from other parts of the food
              web was evaluated qualitatively.

              Wildlife receptors may ingest soil or sediment during feeding, especially for soil-
              or sediment-dwelling prey items.  This pathway can be important in some cases
              and was evaluated quantitatively.

       •      Direct contact (i.e., dermal exposure) of wildlife receptors to soils, sediments, and
              surface water may occur in some cases, but these exposures are judged to be
              minor in comparison to risks from ingestion exposure, and were not evaluated
              quantitatively.

       •      Inhalation exposure to airborne dusts is possible for all terrestrial receptors.
              However, this pathway is generally very minor, and was not evaluated
              quantitatively.

Selection of Wildlife Indicator Species

It is not feasible to evaluate exposures and risks for each avian and mammalian species
potentially present at the site.  For this reason, specific wildlife species are identified as
surrogates (representative species) for the purpose of estimating exposure and risk. The
surrogate species are wildlife species present at the site that are representative of other species
with similar dietary preferences and feeding guilds. Selection criteria for wildlife surrogate
species include trophic level, feeding habits, and the availability of life history information. The
species identified as surrogate species at this site include:

       Masked shrew (Sorex cinereus). The masked shrew represents mammalian insectivorous
       species that feed primarily on soil invertebrates.

       American robin (Turdus migratorius).  The American robin represents avian
       insectivorous passerine species that feed primarily on soil invertebrates.
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       Belted kingfisher (Ceryle alcyori). The belted kingfisher represents piscivorus avian
       species that feed primarily on fish.

       Mink (Mustela visori). The mink represents semi-aquatic mammalian species that feed
       primarily on fish.

       Mallard duck (Anasplatyrhynchos).  The mallard duck represents avian omnivorous
       species that feed primarily on benthic macroinvertebrates.

Exposure profiles are presented for each of these representative species in Appendix B.

4.4    Management Goals

Management goals are descriptions of the basic objectives which the risk manager at a site
wishes to achieve. The overall management goal identified for ecological health at the Ogden
Railyard site is as follows (USEPA 1999b):

       Ensure adequate protection of ecological systems within the impacted areas of the Ogden
       Railyard site by protecting them from the deleterious effects of acute and chronic
       exposures to site-related contaminants of concern.

"Adequate protection" is generally defined as protection of growth, reproduction, and survival of
local populations. That is, the focus  is on ensuring sustainability of the local population, rather
than on protection of every individual in the population. In order to provide greater specificity
regarding this general goal and to identify specific measurable ecological values to be protected,
the following list of sub-goals was derived:

       •      Ensure adequate protection of terrestrial soil  organisms and plant communities by
             protecting them from  the deleterious effects of chronic exposures to site-related
             contaminants of concern.

             Ensure adequate protection of aquatic life in the Weber River, Ogden River, and
             21st Street Pond from  the deleterious effects of chronic exposures to site-related
             contaminants of concern.
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       •      Ensure adequate protection of aquatic and terrestrial mammal and bird
             populations by protecting them from the deleterious effects of chronic exposures
             to site-related contaminants of concern.

             Ensure adequate protection of threatened and endangered species (including
             candidate species) and species of special concern and their habitat by protecting
             them from the deleterious effects of chronic exposures to site-related
             contaminants of concern.

4.5    Assessment and Measurement Endpoints

Assessment endpoints are explicit statements of the characteristics of the ecological system that
are to be protected.  Assessment endpoints are either measured directly  or are evaluated through
indirect measures.  Measurement endpoints represent quantifiable ecological characteristics that
can be measured, interpreted, and related to the valued ecological components chosen as the
assessment endpoints (USEPA 1992, 1997a).

Table 4-1 presents the assessment and measurement endpoints used to interpret potential
ecological risks for the Ogden Railyard site. These measurement endpoints can be divided into
three basic categories of approach, as follows:

             Hazard Quotients (HQs)
             Site-specific toxicity tests (SSTTs)
             Observations of population and community demographics (Pop/Comm. Dem.)

Each of these three basic approaches is described below.

Method 1:  Hazard Quotients

Basic Equation

A Hazard Quotient (HQ) is the ratio of the estimated exposure of a receptor at the site to a
"benchmark" exposure that is believed to be without significant risk of unacceptable adverse
effect:

       HQ = Exposure / Benchmark

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Exposure may be expressed in a variety of ways, including:

       •       Concentration in an environmental medium (water, sediment, soil, diet)
              Concentration in the tissues of an exposed receptor
              Amount of chemical ingested by a receptor

In all cases, the benchmark toxicity value must be of the same type as the exposure estimate.

Interpretation ofHQ Values

If the value of an HQ is less than or equal to 1E+00, risk of unacceptable adverse effects in the
exposed individual is judged to be acceptable.  If the HQ exceeds 1E+00, the risk of adverse
effect in the exposed individual is of potential  concern. When interpreting HQ results for
ecological receptors, it is important to remember that the assessment endpoint is usually based
on the sustainability of exposed populations, and risks to some individuals in a population may
be acceptable if the population is expected to remain healthy and stable.  In these cases,
population risk is best characterized by quantifying the fraction of all receptors that have HQ
values greater than 1E+00, and by the magnitude of the exceedences. Clearly, if all HQs for
individuals in a population of receptors are below 1E+00, it is believed that no unacceptable
effects will occur in the exposed population. Conversely, if many or all of the individual
receptors have HQs that are above 1E+00, then unacceptable effects on the exposed population
are likely, especially if the HQ values are large. If only a small portion of the exposed
population has HQ values that exceed 1E+00,  some individuals may be impacted, but
population-level effects are not likely to occur. As the fraction of the population with HQ values
above 1E+00 increases, and as the magnitude of the exceedences increases, risk that a
population-level effect will occur also increases. This concept is illustrated schematically in
Figure 4-2.

The fraction of the population that must have HQ values below a value of 1E+00 in order for the
population to remain stable depends on the species being evaluated and on the toxicological
endpoint underlying the toxicity benchmark (USEPA 200 Ic), and reliable characterization of the
impact of a chemical stressor on an exposed population risks requires knowledge of population
size, birth rates, and death rates, as well as immigration and emigration rates. Because this type
of detailed knowledge of population dynamics is generally not available on a site-specific basis,
extrapolation from a distribution of individual  risks to a characterization of population-level
risks is generally uncertain. For the purposes of this assessment, it is assumed that if at least

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                                                                FINAL
80% of the individuals in a population have an HQ < 1E+00, risks to the population will be
minimal. Conversely, it is assumed that if more than 20% of the individuals in a population have
HQ values above 1E+00, then there is a potential risk to that population. It should be
emphasized that this is a screening level assumption based on professional judgement, and that
actual risks to populations are expected to gradually transition from "acceptable" to
"unacceptable"  as the frequency and magnitude of HQ values above 1E+00 increases.

In cases where a substantial fraction of the available concentration  data are below the limit of
detection, and the limit of detection is above the level corresponding to an HQ of 1E+00, it is
usually not possible to estimate the fraction or magnitude of individual HQ values above 1E+00,
since HQ values for non-detects might be either above or below a level of 1E+00.

Based on this approach, risks to a sub-population of receptors residing in an exposure area were
classified into one of three categories, as shown below.
 Risk Category
Distribution of HQ values
Preliminary Conclusion
       A
Greater than 20% of HQs based on detects
exceed 1E+00.
Risks to the sub-population at this
location are possible.
       B
There are at least 20% of the HQs greater than
1E+00, but these are partly or entirely based
on non-detects. The method detection limit
was inadequate to quantify risk.
Risk to the sub-population at this
location cannot be determined.
                 Greater than 80% of all HQs (based on non-
                 detects and detects) are below 1E+00.
                                          Risks to the sub-population at this
                                          location are expected to be
                                          minimal and are assumed to be
                                          acceptable.
Selection of Chemicals of Potential Concern for the HQ Approach

An HQ value may be derived for any chemical for which adequate exposure and toxicity data are
available.  However, it is usually helpful to restrict the number of chemicals evaluated
quantitatively to a subset of all chemicals for which data exist. These are referred to as
chemicals of potential concern (COPCs).  The general procedure used in this risk assessment to
select COPCs for quantitative evaluation by the HQ approach is shown in Figure 4-3.

This procedure may be applied to each medium of potential concern (surface water, sediment,
soil,  food web items) for which direct data are available (or for which concentrations can be
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estimated by mathematical modeling), and for each main class of receptor exposed to that
medium.  If a chemical does not have a toxicity benchmark that is sufficient to allow
characterization of toxicity to a receptor type from that medium, that chemical is assigned to the
"Qualitative COPC" category (Type 1). Chemicals that have an appropriate toxicity reference
value (TRY) but were never detected in the medium are usually excluded from further
consideration. However, if the detection limit for the chemical was too high to expect detection
of the chemical if it were present at a level of concern, the chemical is also assigned to the
"Qualitative COPC" category (Type 2). If a TRV was available for a chemical and the
maximum detected value of the chemical (from anywhere at the site) was less than the TRV, it is
concluded that the chemical does not occur at a level of ecological concern  and is not evaluated
as a COPC.  If the maximum detected value did exceed the TRV, then the chemical is evaluated
quantitatively. It should be noted that this selection procedure is intended to be conservative;
that is, the selection procedure is intended to eliminate only those chemicals that are clearly not
of ecological concern, and to carry forward those chemicals that might be of concern.

In most cases, HQ values are not based on site-specific toxicity data, and do not account for
site-specific factors that may either increase or decrease the toxicity of the metals compared to
what is observed in the laboratory. Therefore, HQ values should be interpreted as estimates
rather than highly precise predictions and should be viewed as part of the weight-of-evidence
along with the results of site-specific toxicity testing and direct observations on the structure and
function of the aquatic community (see below).

Method 2: Site-Specific Toxicity Tests

Site-specific toxicity tests measure the response of receptors that are exposed to site media. This
may be done either in the field or in the laboratory using media collected on the site.  The chief
advantage of this approach is that site-specific conditions which can influence toxicity are
usually accounted for. A potential disadvantage is that, if toxic effects are observed to occur
when test organisms are  exposed to site media, it is usually not possible to specify which
chemical or  combination of chemicals is responsible for the effect. Rather,  the results of the
toxicity testing reflect the combined effect of the mixture of chemicals present in the site
medium.  In addition, it is often difficult to test the full range of environmental conditions which
may occur at the site across time and space, either in the field or in the laboratory,  so these
studies are not always adequate to identify the boundary between exposures that are acceptable
and those that are not.
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Method 3: Population and Community Demographic Observations

A third approach for evaluating impacts of environmental contamination on ecological receptors
is to make direct observations on the receptors in the field, seeking to determine whether any
receptor population has unusual numbers of individuals (either lower or higher than expected), or
whether the diversity (number of different species) of a particular category of receptors (e.g.,
plants, benthic organisms, birds) is different than expected.  The chief advantage of this
approach is that direct observation of community status does not require making the numerous
assumptions and estimates needed in the HQ approach. However, there are also a number of
important limitations to this approach.  The most important of these is that both the abundance
and diversity of an ecological population depend on many site-specific factors (habitat
suitability, availability of food, predator pressure, natural population cycles, meteorological
conditions, etc.), and it is often difficult to know what the expected (non-impacted) abundance
and diversity of an ecological population should be in a particular area. This problem is generally
approached by seeking an appropriate "reference area" (either the site itself before the impact
occurred, or some similar site that has not been impacted), and comparing the observed
abundance and diversity in the reference area to that for the site. However, it is sometimes quite
difficult to locate reference areas that are truly a good match for all of the important habitat
variables at the site, so comparisons based on this approach do not always establish firm
cause-and-effect conclusions regarding the impact of environmental contamination on a receptor
population.

4.6   Weight of Evidence Evaluation

As noted above, each of the measurement endpoints has advantages but also has limitations. For
this reason, conclusions based on only one method of evaluation may be misleading.  Therefore,
the best approach for deriving reliable conclusions is to combine the findings across all of the
methods for which data are available, taking the relative strengths and weaknesses of each
method into account. If the methods all yield similar conclusions, confidence in the conclusion
is greatly increased. If different methods yield different conclusions, then a careful review must
be performed to identify the basis of the discrepancy, and to decide which approach provides the
most reliable information.
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5.0    RISKS TO AQUATIC RECEPTORS

5.1    Hazard Quotient Approach

As discussed in Section 4.3, site-related contaminants are of potential concern in the Weber
River west of the railyard and the Ogden River and the 21st Street Pond north of the railyard.
Aquatic receptors living in these waters may be exposed to contaminants through several
potential pathways.  Based on the site conceptual model (Figure 4-1), the following exposure
pathways have been selected for quantitative evaluation by the HQ approach:

       •      Direct contact with chemicals dissolved or suspended in surface water. This
             pathway is most applicable to fish, but is also applicable to benthic organisms that
             reside in the uppermost portion of the sediment substrate.

       •      Direct contact with chemicals in sediment or dissolved into the interstitial water
             (porewater) occupying the spaces between sediment particles. This pathway is
             most applicable to benthic macroinvertebrate species that live buried within the
             sediment substrate.

       •      Exposure offish by all pathways combined, based on tissue levels of chemicals in
             fish tissue.

Each of these HQ-based evaluations is described below.

5.1.1   Risks to the Aquatic Community from Direct Contact with Surface Water

Exposure Assessment

Because concentrations of chemicals in surface water can vary significantly  over time and
location, exposure of aquatic receptors is best characterized as a distribution of individual values
at each sampling location, rather than as an average of values over time and/or over location.
That is, an HQ value is calculated for each sample for each chemical. In accord with USEPA
guidance, non-detects were evaluated at one-half the detection limit.

The concentration value of a chemical in surface water may be expressed either as total
recoverable or as "dissolved" (that which passes through a fine-pore filter).  There is  general

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consensus that toxicity to aquatic receptors is dominated by the level of dissolved chemicals
(Prothro 1993), since chemicals that are adsorbed onto particulate mater may be less toxic that
the dissolved forms. However, at this site, the only data available for chemicals in surface water
are based on total recoverable. In some cases the difference between total recoverable and
dissolved may be small, but calculating risks to aquatic receptors based on total recoverable
could lead to an overestimate of actual risks.

Toxicity Assessment

Toxicity benchmark values for the protection of aquatic life from direct contact with
contaminants in surface water are available from several sources.  Each of the sources evaluated
in deriving surface water benchmarks is described briefly in Appendix C-l, along with a
hierarchy for identifying the most relevant and reliable benchmark value when more than one
value is available. The selected toxicity benchmark values for all chemicals analyzed in surface
water are shown  in Table C-la (non-hardness dependent benchmarks) and in Table C-lb
(hardness dependent benchmarks) of Appendix C.

Surface Water COPC Selection

Surface water COPCs for aquatic receptors were selected using the procedure shown in Figure 4-
3 based on all available surface water data from the 21st Street Pond, the Ogden River, and the
Weber River.  Maximum surface water concentrations for each chemical were compared to their
respective chronic benchmark values (see Table C-la,b).   Note that toxicity benchmarks for a
number of inorganic chemicals in surface water are hardness dependent. For simplicity, the
toxicity benchmarks used in the COPC screen were calculated based on the site-wide average
hardness (200 mg/L). The results of the COPC selection procedure  for exposure of aquatic
receptors to surface water are detailed in Appendix  D-l and the chemicals that were selected for
quantitative evaluation are presented below.
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Quantitative COPCs for Exposure of Aquatic Receptors to Surface Water
Inorganics
Aluminum
Barium
Cadmium
Iron
Lead
Nickel
Selenium
Silver
Zinc
PAHs
Acenaphthene
Anthracene
Benzo [a]anthracene
Benzo[a]pyrene
Fluorene
Naphthalene
Pyrene


SVOCs
bis(2-Ethylhexyl)phthalate
Acetone
Carbon disulfide
Dichloromethane
Ethylbenzene















Hazard Quotients for Direct Contact with Surface Water

Because the toxicity of COPCs in surface water to aquatic receptors is usually dependent on the
length of exposure, the HQ was calculated both for short-term (acute) and long-term (chronic)
exposure conditions.  In cases where the acute and chronic benchmarks are hardness-dependent,
toxicity benchmarks were calculated for each sample based on the hardness of that sample.  If a
sample hardness was not reported or could not be estimated, the HQ was calculated based on the
average site hardness (200 mg/L).

The detailed calculations of HQ values for each COPC in each sample are presented in Appendix
E-l, along with graphs which summarize the distributions of HQ values for samples collected at
each reach. Two examples are presented in Figure 5-1 (aluminum) and Figure 5-2
(naphthalene). In each figure, the upper panel shows the distribution of HQ values for acute
toxicity, while the lower panel reflects the distribution of risks of chronic effects on growth or
reproduction. HQs based on non-detects are shown as open-circles and HQs based on detects are
shown as closed circles. Note that the results in these figures are plotted on a log-scale, so large
differences between HQ values are somewhat compressed.

As discussed in Section 4.5, the population-level risk in each exposure reach was classified into
one of three risk categories based on the fraction of the HQ distribution above a value of 1E+00.
The results are summarized in Table 5-1. Inspection of Table 5-1, along with the figures in
Appendix E-l, yields the following main conclusions:
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Inorganics
Organics
             Based on the acute toxicity benchmarks, only one chemical at one location
             (aluminum in Buena Ventura Park Pond) is assigned to risk category A.
             However, this is a reference location that is not believed to be impacted by any
             site releases.

             Based on chronic benchmarks, several inorganic COPCs (aluminum, barium,
             cadmium, iron,  and lead) are assigned to risk category A at one or more exposure
             locations. However, risks in two reference areas (Buena Ventura Park Pond,
             Weber River Reach A) are approximately the same as in areas potentially
             impacted by site releases, and no spatial pattern in risk levels is apparent. Based
             on this, it is concluded that the chronic toxicity benchmarks for these chemicals
             are probably overly-conservative for application at this site (at least for
             concentration values measured as total rather than soluble), and that chronic risks
             from these inorganic COPCs in surface water are not likely to be of population-
             level concern to aquatic receptors.
             There are no organic COPCs assigned to risk category A based on acute toxicity
             benchmarks.  Based on chronic benchmarks, several PAHs (benzo[a]anthracene,
             benzo[a]pyrene, naphthalene, and pyrene) are of potential population-level
             concern in water samples from the east end of the 21st Street Pond. Because these
             PAHs are constituents of the DNAPL plume that is known to impact the east end
             of the 21st Street Pond, risks from these chemicals are judged to be site-related.
             However, because the water samples were not filtered before analysis, the
             measured concentrations may reflect PAHs adsorbed to suspended paniculate
             matter in water rather than true  dissolved-phase chemical. If so, risks from these
             PAHs in surface water would be lower than calculated.
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5.1.2   Risks to Benthic Macroinvertebrates from Direct Contact with Sediment

Exposure Assessment

Benthic macroinvertebrates that spend some or most of their life cycle within the sediment
substrate are exposed to chemicals through direct contact with sediment.  Although
concentrations of chemicals in sediment are usually not as time-variable as concentrations in
surface water, concentrations do fluctuate as contaminated material is added or removed by
surface water flow. In addition, there may be significant small scale variability in sediment
concentrations at any specific sampling station. Therefore, exposure to sediments is usually best
characterized as a distribution of individual values at a specific location.  At this site, there is
only one measurement of sediment concentration available per sampling location, so exposure
was based on that single concentration value.  In accord with USEPA guidance, non-detects were
evaluated at one-half the detection limit.

In the case of PAHs, concentration data were collected using two different analytical methods:
GC-MS and GC-MS-SIM (selective ion monitoring).  The SIM data were collected because the
detection limit for most PAHs by GC-MS is relatively high compared to sediment toxicity
benchmarks, and the detection limit for SIM is about 10-fold lower. Risks were calculated using
both sets of data.

Toxicity Assessment

Toxicity values for the protection  of aquatic life (mainly benthic organisms) from contaminants
in sediment are available from several sources. Each  of the sources evaluated in deriving
sediment benchmarks is described briefly in Appendix C-2, along with a hierarchy for
identifying the most relevant  and reliable benchmark value when more than one value is
available.  The selected toxicity benchmark values for all chemicals analyzed in sediment are
shown in Table C-2b of Appendix C.

For some chemicals, sediment benchmark values  depend on the concentration of total organic
carbon (TOC) in the sediment. In these cases, the value  of the TRV was adjusted for each
sediment sample based on the TOC level measured in  that sample. When the TOC  content was
not measured, the value was estimated based on the mean of other sediment samples from the
same location.
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In the case of PAHs, two sets of benchmarks were selected. The first is based on direct
observations of PAH levels in sediments that are and are not toxic to benthic organisms. This is
referred to as the Sediment Effects Concentration (SEC).  The second set of benchmarks was
calculated based on the expected partitioning of PAHs between sediment and porewater, and the
concentration of PAHs in porewater that are toxic. This is referred to as the Equilibrium
Sediment Guideline (ESG). Both types of benchmarks were used to evaluate risks.

Sediment COPC Selection
Sediment COPCs for benthic macroinvertebrates were selected based on all available sediment
data from the 21st Street Pond, the Ogden River and its drainages, and the Weber River. Data
were limited to sediment collected at a depth of 0 to 2 feet, because most benthic
macroinvertebrates are expected to be located within this depth.  Sediment concentrations for
each chemical were compared to the sediment screening toxicity benchmark. For PAHs, the
sediment toxicity benchmark used in the COPC screen was the lower of the SEC and ESG. The
results of the COPC selection procedure for sediment are detailed in Appendix D-2 and the
chemicals that were selected for quantitative evaluation are presented below.
Quantitative COPCs for Sediment
Inorganics

Copper
Iron
Lead
Mercury
Selenium
Silver
Zinc





Pesticides/
PCBs
4,4'-DDE
4,4'-DDT
Dieldrin
PCBs (as
Aroclor)







PAHs

1-Methylnaphthalene Benzo[k]fluoranthene
2-Methylnaphthalene Chrysene
Acenaphthene Dibenz[a,h] anthracene
Acenaphthylene Fluoranthene
Anthracene Fluorene
Benzo [a] anthracene Indeno [1,2,3 -cd]py rene
Benzo[a]pyrene Naphthalene
Benzo [b]fluoranthene Phenanthrene
Benzo [g,h,i]perylene Pyrene



SVOCs/VOCs

Biphenyl
bis(2-Ethylhexyl)Phthalate
Dibenzofuran
Phenol
Acetone
Acrolein
Benzene
Bromomethane
Carbon disulfide
Ethylbenzene
Toluene
Xylenes
                                                                                  5-6

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ECOLOGICAL RISK ASSESSMENT FOR THE OGDEN RAILYARD SITE	FINAL
Hazard Quotients for Direct Contact with Sediment

Non-PAHs

The detailed calculations of HQ values for each non-PAH COPC in each sample are presented in
Appendix E-2, along with figures that summarize the distribution of HQ values at each location.
Two examples results are presented in Figure 5-3 (selenium) and Figure 5-4 (Aroclor 1260).
HQs based on non-detects are shown as open-circles and HQs based on detects are shown as
closed circles. At each reach or location, the risks from a COPC were classified into three risk
categories (as described in Section 4.5) based on the HQ distribution.  Note that the results in
these figures are plotted on a log-scale, so large differences between HQ values are somewhat
compressed.

Table 5-2 summarizes the population-level risk category assignments for exposure of benthic
organisms to non-PAH COPCs in sediment.  Inspection of Table 5-2 and the figures presented in
Appendix E-2 yield the following main conclusions:
Inorganics
              The distributions of sediment HQs for lead, mercury, silver, and zinc are above a
              level of potential concern (risk category A) in Buena Ventura Park Pond (a
              reference location), but not in any location that is likely to have been impacted by
              site-related releases.  Thus, these chemicals are not considered to be of significant
              ecological concern at this site.

              The distribution of HQs for selenium is above a level of potential concern at the
              west end of the 21st Street Pond, but not for reference areas or other site areas.
              Because the risks do not appear to reach a level of population concern in the east
              end of the 21st Street Pond or in the Ogden River near the pond, it is considered
              likely the selenium in this location is not site-related.
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Non-PAH Organics

       •       Several organic COPCs are assigned to risk category A at one or more locations.
              This includes 4,4'-DDE, Aroclor 1260, biphenyl, bis(2-ethylhexyl)phthalate,
              carbon disulfide, toluene, and xylenes.

              HQ distributions for bis(2-ethylhexyl)phthalate, carbon disulfide, and toluene are
              generally similar in reference areas (Ogden River Reach A, Weber River Reach
              A, Buena Ventura Pond) and in areas potentially impacted by site releases. Based
              on this, it is concluded that these chemicals are unlikely to be site-related. Bis(2-
              ethylhexyl)phthalate and carbon disulfide are common laboratory contaminants
              and could be laboratory artifacts.

       •       Risks from Aroclor 1260 are above a level of population concern in Ogden River
              Reaches B and C, and in the east end of the 21st Street Pond (see Figure 5-4).
              This indicates that PCBs may be adversely impacting benthic communities in
              these locations, especially in Ogden River Reach B.

       •       Risks from 4,4'-DDE in the west end of the 21st Street Pond are relatively low,
              and the absence of detects of these chemicals in the east end of the 21st Street
              Pond and in Ogden River Reaches B and C suggests the source is more likely to
              be runoff from area soils than from a site-related release.

       •       Biphenyl was detected in only one sample (in the east end of the 21st Street Pond).
              Because all other samples were below the limit of detection, and because the limit
              of detection was relatively high, the data for this chemical cannot be interpreted
              with certainty.

              Xylenes (total, o-, and  m,p-) are detected above a level of concern in several
              samples from the 21st Street Pond, and are likely to be an authentic site
              contaminant related to  the DNAPL contamination. The overall exceedence rate
              (combining data across the three different types of analytical estimate) is 2 out of
              17 in the west end of the pond, and 2 out of 5 in the east end of the pond.  This
              indicates that population-level risks are not likely to be substantial in the west end
              of the pond, but could be of concern in the east end of the pond.
                                                                                     5-S

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In summary, risks to benthic organisms from site-related non-PAHs in sediment do not appear to
be of population-level concern except possibly for xylenes and PCBs in the east end of the 21st
Street Pond and for PCBs in the Ogden River Reach B.

PAHs (Non-SIM Data)

Because there are two types of toxicity benchmarks for PAHs, risks were calculated based on
both the SEC and the ESG benchmarks.  When comparing PAHs in sediment to ESGs, the
concentration was expressed as mass per unit total organic carbon (TOC) content in that sample.
In cases where the TOC was not measured in a sample, the normalized concentration was based
on the average measured TOC for samples from the same reach.

The detailed calculations of HQ values for each PAH COPCs measured by GC-MS in each
sample are presented in Appendix E-3, along with figures that summarize the distribution of HQ
values at each location. An example is presented in Figure 5-5 (benzo[a]pyrene).  The upper part
of the figure shows results based on the SEC approach and the bottom panel presents the results
based on the ESG approach. HQs based on non-detects are shown as open-circles and HQs
based on detects are shown as closed circles.

Table 5-3 summarizes the risk classifications based on these data. Inspection of Table 5-3 and
the figures presented in Appendix E-3 indicates the following main conclusions:

             HQ values based on SEC benchmarks predict that the benthic community in the
             pond is severely impacted due to multiple PAH constituents in sediments. These
             risks are mainly on the east end of the pond (inside the fenced area), but elevated
             risks exist for a few PAHs outside the fenced area as well.

       •      For sediments from Reach B of the Ogden River (in the area of the DNAPL
             zone), multiple PAHS have one or more HQ values (based on detects compared to
             the SEC benchmarks) above 1E+00, and several PAHs have a sufficient fraction
             of the total HQs above 1E+00 to be assigned to risk category A.  Although the
             data are too limited to warrant detailed statistical evaluation, the concentrations of
             most PAHs in Reach B appear to be generally similar to levels observed in Reach
             A (a reference area), suggesting that some of the PAHs in sediments from Ogden
             Reach B may not be site-related.
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       •      In the Weber River, HQ values based on SEC benchmarks are not above a level
             of population concern for most PAHs. For benzo[b]fluoranthene, HQ values are
             above 1E+00 for one sample from Reach C and one sample from Reach D, but the
             exceedences are low and are not clearly different than for Ogden River Reach A
             (reference area).

       •      When risks from PAHs are evaluated using the ESG benchmarks, HQ values are
             lower than when evaluated using the SEC benchmarks, and only one PAH
             (naphthalene) remains assigned to risk category A in the east end of the 21st Street
             Pond.

PAHs (SIM Data)

Interpretation of the sediment HQs for PAHs presented above is difficult because in some cases
the frequency of detection was low and the detection limits were not always sufficient to
quantify concentrations of potential concern. For this reason, sediment samples from several
locations in the 21st Street Pond and the Ogden River were analyzed by GC-MS-SIM. As noted
above, the SIM method improved analytical quantitation limits for 17 PAHs by up to a factor of
about 10.

Figures which summarize HQs based only on SIM data for each of the PAHs are provided in
Appendix E-4, and the results  are summarized in Table 5-4.  Inspection of these figures and
Table 5-4 support the conclusion that, based on SEC toxicity benchmarks, multiple PAHs are
above a level of concern in sediments from the 21st Street Pond (especially in the eastern end of
the pond) and from Ogden River Reach B. However, based on the ESG benchmarks, none of
these chemicals leads to an HQ distribution assigned to risk category A. Figure 5-6 illustrates
this pattern using acenaphthylene as an example.

Discussion of Sediment HQ Results Based on SEC and ESG Benchmarks

Conclusions regarding risks from PAHs in sediment depend upon which type of toxicity
benchmark is employed. Based on the SEC benchmarks, bulk sediment concentrations  of PAHs
at the 21st Street Pond are predicted to be severely impacting benthic macroinvertebrate
populations. However, based on the ESG benchmarks, risks are predicted to be much lower,
with a majority of values below an HQ of 1E+00. In order to determine which approach is more
reliable, it is necessary to review in detail the basis for each type of benchmark.

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The SEC is derived from measurements of PAH concentrations in field sediment samples that
are observed to cause an adverse effect in benthic organisms.  This approach assumes that all of
the toxicity to benthic organisms is due to the PAH that was measured, even though other
chemicals (PAHs and non-PAHs) in the sediment may have been the true risk drivers. In
addition, this approach does not take into consideration the effect of site-specific conditions,
such as TOC, which may alter the exposure of a receptor exposed to the sediment. If only a
fraction of the total amount of bulk chemical is biologically available due to site-specific
conditions, the observed toxicity in the receptor will be lower than predicted.

The ESG is based on the calculated partitioning of PAHs from bulk sediment into interstitial
porewater. This approach does account for the TOC of the sediment, and is based on direct
toxicity measurements of the pure chemical in water. In comparison to the SEC, the ESG
provides a better estimate of biologically available constituent. However, the ESGs may tend to
be underprotective, since a) they do not consider toxicity associated with photoactivation of
PAHs, b) they consider only a fraction of the possible PAH constituents (only 10 PAHs), and c)
the calculated concentrations in porewater may not represent actual partitioning under field
conditions.

Based on these considerations, it is concluded that actual risks to benthic macroinvertebrate
receptors from PAH constituents in sediment are likely to fall somewhere between the ranges
predicted by the SEC and the ESG methods. Because the distribution of HQ values generated by
these two alternative approaches yield different conclusions regarding potential population level
risks, it is judged that no firm conclusion can be drawn from the HQ approach based on bulk
sediment concentration values.

5.1.3   Risks to Benthic Macroinvertebrates from Direct Contact with Sediment Porewater

Exposure Assessment

Adverse effects from COPCs in sediment are likely to be mediated primarily by chemicals that
have dissolved into sediment porewater from the bulk sediment.  Thus, the most direct approach
for evaluating toxicity from PAHs in sediment is to measure the concentration of PAHs in the
sediment porewater and compare those concentrations to water-based toxicity values. This is
similar in concept to the ESG approach described above, except that the concentrations of PAHs
in porewater are measured rather than predicted. Since there may be variability in sediment
porewater concentrations at any specific sampling  station, exposure to benthic

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macroinvertebrates is usually best characterized as a distribution of individual values at a
specific location. At this site, there is only one measurement of porewater available per
sampling location, so exposure was based on that single concentration value. Data used to assess
exposure were restricted to those obtained using PAH SIM analysis.  In accord with USEPA
guidance, non-detects were evaluated at one-half the detection limit.

Toxicity Assessment

Risks to benthic organisms from PAHs in porewater were evaluated by comparison of measured
sediment porewater concentrations to final chronic values (FCV) for freshwater organisms as
established in the equilibrium partitioning sediment guidelines (USEPA 2000). The FCVs are
intended to be protective of sediment-dwelling benthic organisms, and are derived from sediment
porewater concentrations of PAHs associated with chronic toxicity. Table C-3 of Appendix C
presents the FCVs for all PAHs that were analyzed in porewater.

Hazard Quotients for Direct Contact with PAHs in Sediment Porewater

The detailed calculations of HQ values and graphical presentations for each COPC in each
porewater sample are presented in Appendix E-5. The results are summarized in Table 5-5, and
an example (acenaphthene) is shown in Figure 5-7.  Based on these calculations, the HQs for
PAHs are below a level of concern in all sediment porewater samples. In most samples,
detection limits for each PAH were adequate to provide meaningful estimates of risk.  The
exceptions were for dibenz[a,h]anthracene  and indeno[l,2,3-c,d]pyrene for one sample from the
21st Street Pond within the fenced area. In  this sample, the detection limits for these two PAHs
were slightly above their respective FCV.

These calculations indicate that PAHs in sediment porewater do not pose a population-level risk
to benthic organisms in the 21st  Street Pond or the Ogden River.

5.1.4   Risks to Fish Based on Fish Tissue Burdens

One way to estimate risks to fish is to compare the tissue level of chemicals observed in fish
collected at the site to tissue concentrations that occur in fish with  and without evidence of
adverse effects. This approach has the advantage that it integrates exposures over multiple
sources (surface water, sediment, food web), and accounts for any  site-specific factors that might
increase or decrease exposure compared to laboratory  conditions.

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Exposure Assessment

Fish tissue data are available for the 21st Street Pond, Buena Ventura Park Pond, the Ogden
River, and the Weber River. Results include tissue concentrations based on whole body, fillet,
carcass, and liver for several different fish species. Each tissue sample was evaluated separately.
The following table summarizes the available fish tissue data for the site.
Location
2 1st Street Pond
Buena Ventura Park Pond
Ogden River
Weber River
Tissue Type
carcass
G,NG
~
~
~
fillet
G,NG
G
G
G
liver
G,NG
~
~
~
whole
body
G, NG, F
~
NG, F
~
G = Game NG = Non-Game F = Forage ~ = No Data
Toxicity Assessment

Jarvinen and Ankley (1999) provide a compilation of studies that identify effect levels and
no-effect levels of organic and inorganic chemicals, expressed in terms offish tissue
concentrations.  For this risk assessment, the tissue-based toxicity benchmark (also referred to as
the maximum acceptable tissue concentration, or MATC) was defined as the highest residue
reported to be associated with no adverse effects (No Observed Adverse Effect Level, or
NOAEL) below the lowest reported residue that is reported to cause an adverse effect (Lowest
Observed Adverse Effect Level, or LOAEL).  Table C-4 of Appendix C summarizes the MATCs
for each chemical detected in fish tissue. In cases where an MATC was only available for whole
body, a tissue-specific MATC was derived based on the following equation:

       MATCtlssue = MATCwholebody • (Lipid Content^ / Lipid Content^ body)

Fish Tissue COPC Selection

No COPC screen was employed in the assessment offish tissue burdens. Rather, risks were
calculated for chemicals detected in any tissue.
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Hazard Quotients for Fish Based on Fish Tissue Data

For each tissue type, HQs were calculated for each sample in each reach. Detailed risk
calculations are provided in Appendix E-6, and results are summarized in Table 5-6. As seen,
risks from 4,4'-DDE and 4,4'-DDD were above a level of potential concern at the 21st Street
Pond. The distribution of HQ values for these COPCs at this location are shown in Figure 5-8.
For these DDT metabolites, HQs were highest for carcass and fillet samples from non-game
species such as suckers and carp. HQs for largemouth bass and some forage fish species were
also greater than 1E+00.  4,4'-DDE and 4,4'-DDD HQs for all trout species were below a level of
concern in all samples. Risks to fish based on tissue burdens of DDT, dieldrin, PCBs, and
phenol were below a level of concern in all samples.

Based on these risk calculations, some species offish in the 21st Street Pond may be at risk of
adverse effects due to elevated tissue concentrations of DDT metabolites.  The source of DDT
metabolites in fish tissues is not known, but may be due to historic use in adjacent agricultural
fields rather than a railyard-related release. Population-level adverse effects from other detected
contaminants are not expected.

5.2    Evaluation of Site-Specific Toxicity Tests

One way to help reduce the uncertainty associated with HQ values based on toxicity benchmark
values is to perform direct toxicity testing using site-specific media. Tests of this type have been
performed to investigate the toxicity of site sediments on benthic organisms, using sediment
samples collected from the 21st Street Pond, Buena Ventura Park Pond, and the Weber River.

The first sediment toxicity tests were performed during the Phase 2 investigation by USEPA's
Environmental Response Team (USEPA/ERTC 2001).  Test  sediment samples were collected
from 10 sampling stations along the Weber River. For each sampling station, a 10-day
subchronic test using Chironomus tentans and a 14-day subchronic survival and growth toxicity
test using the amphipod Hyalella azteca was conducted in accord with standard protocols.  The
detailed results are presented  in USEPA/ERTC (2001) and are summarized in the upper portion
of Table 5-7.

As seen, small but statistically significant decreases in survival were noted for organisms
exposed to sediments from station WR025, but not other stations.  Station WR025 is located near
a wastewater treatment plant  and lagoon area (AOI 34) in the railyard, and groundwater from

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this area does discharge to the Weber River.  These results suggest that one or more chemicals
released from the site in the vicinity of AOI 34 may be present in sediment of the Weber River
and may be toxic to benthic organisms at that location. However, repeat studies would be
needed to confirm this conclusion and to identify which chemical or combination of chemicals is
responsible for the toxicity.

During the Phase 3 investigation, sediment toxicity tests were performed for sediments from the
21st Street Pond and Buena Ventura Park Pond (USEPA 2002).  Sediments from three different
locations in the 21st Street Pond were selected to represent sediments from areas above, on the
edge of, and outside of the DNAPL zone. Sediments from Buena Ventura Park Pond were
collected from two sampling locations and are considered to be reference samples.  For each
sampling station, a 14-day subchronic survival and growth toxicity test using the amphipod
Hyalella azteca was conducted in accord with standard protocols.  Each sediment toxicity test
consisted of eight replicates (10 organisms per replicate) per station using 100%  site sediment
(without dilution).  Detailed results from the Phase 3 sediment toxicity tests are presented in
USEPA (2002) and are summarized in the lower portion of Table 5-7.

As seen, toxicity was not detected in any of these sediment samples, including samples from
inside the fenced area of the pond where DNAPL has directly impacted the sediments. This
apparent lack of toxicity is unexpected, since these sediments are clearly contaminated with
DNAPL, and because HQ calculations for these sediments indicate that PAH levels may be
above a level that results in toxicity (see Section 5.1.2, above).

One possible explanation is that because the test organisms (H. azteca) are epibenthic (i.e., they
exist primarily at the interface between the sediment and the overlying water, rather than
burrowing deeply into the sediment), they may not have been exposed to sediment porewater
directly, but only indirectly through the release of contaminants from the sediment into the
overlying test water.  Because this water was renewed daily, concentrations of sediment-related
chemicals in the overlying water might have been lower than the concentration in sediment
porewater.  However, further studies would be needed to determine if this hypothesis is correct
and if the sediment is actually toxic.
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5.3    Evaluation of Aquatic Community Surveys

Effects of chemical stressors on an ecosystem can sometimes be evaluated by direct observation
of the density and diversity of species present in the ecosystem.  At this site, observations on the
benthic community structure are available from two separate studies.

The Phase 2 investigation focused on the benthic community in the Weber River.  For each
sample, several benthic macroinvertebrate metrics were evaluated to determine the biological
condition of the benthic community.  For each sample, a biological condition score was derived
from the available benthic metrics based on Rapid Bioassessment Protocols (RBP) for rivers and
streams described in Figure 5-9 (USEPA 1989).  Results for each of the Phase 2 Weber River
samples are shown in the upper portion of Table 5-8.  As seen, the benthic community in the
Weber River does not appear to be impacted at any site location in comparison to the reference
location (WR09).

The Phase 3 investigation focused primarily on the 21st Street Pond and Buena Ventura Park
Pond. Results from this investigation are shown in the lower portion of Table 5-8.  It is
important to note that the macroinvertebrates collected from the ponds are representative of free-
swimming organisms found near the vegetated areas of the banks and not sediment-dwelling
benthic organisms.  This is primarily because the sediments from these ponds are composed of
dense, fine-grained particles and do not support the types of benthic-dwelling organisms
typically seen in the gravel and cobble substrates typical of rivers and streams.  Because the
RBP method is designed for use in evaluating benthic macroinvertebrate communities in streams
and rivers, an RBP biological condition score cannot be derived for the 21st Street Pond and
Buena Ventura Park Pond samples. Therefore, interpretation of these macroinvertebrate  metrics
is limited to a semi-quantitative comparison of the samples from the three locations in the 21st
Street Pond to the two reference locations in the  Buena Ventura Park Pond.  As seen, although
there is a tendency for the density and diversity of some organisms (e.g., scrapers) to be lower
inside the fenced area at the east end of the 21st Street Pond than in the west end of the pond, the
biotic community observed in  samples collected from the 21st Street Pond appears to be
generally similar in structure and density to the community  observed in Buena Ventura Park
Pond. This comparison indicates that, aside from some potential shifts in community structure in
the east end of the pond, the invertebrate population in the 21st Street Pond is not severely
impacted.
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5.4    Weight of Evidence Evaluation


Risks from Surface Water


One line of evidence (the HQ approach) is available to evaluate risks to aquatic receptors from
direct contact exposure to surface water.  The findings from this line of evidence are summarized
below.
 Line of Evidence
Findings
 HQ calculations based on surface
 water concentrations at the Weber
 River, the Ogden River, and the 21s
 Street Pond
Most HQ distributions are either below a level of population
concern (at least 80% of all HQ values are < 1E+00), or else
do not appear to be site-related. Chronic HQ distributions
are of potential concern for several PAHs in the east end of
the 21st Street Pond. These are likely site-related, but might
reflect PAHs bound to suspended sediment rather than
dissolved in surface water. If so, risks are likely to be lower
than calculated.
Based on this line of evidence, it is concluded that site-related chemicals in surface water do not
pose a population-level risk to aquatic receptors, with the possible exception of the east side of
the 21st Street Pond.

Sediments

Three lines of evidence are available to evaluate risks from sediments to benthic organisms.  The
findings from these lines of evidence are summarized below.
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Line of Evidence
HQ Calculations
Direct Toxicity
Testing
Population
Observations
Findings
Non-PAHs
Based on bulk sediment concentrations and SEC benchmarks, risks to benthic
organisms from non-PAHs in sediment do not appear to be of population-level
concern except possibly for xylenes and PCBs in the east end of the 21st Street
Pond and for PCBs in the Ogden River Reach B.
PAHs
Based on bulk sediment concentrations and SEC benchmarks, risks from PAHs
are of population-level concern in multiple locations, especially the east end of
the 2 1st Street Pond.
Based on bulk sediment concentrations and ESG benchmarks, risks from PAHs
are not of population-level concern at any location except possibly for
naphthalene at the east end of the 21st Street Pond.
Based on porewater measurements, risks from PAHs are not of population-level
concern at any location, including the east end of the 21st Street Pond.
Low toxicity (24-26% mortality) was noted at 1 location in the Weber River (near
AOI 34). Toxicity was not observed at 7 other locations in the Weber River, and
not at 3 locations from the 21st Street Pond.
No evidence of adverse effect in the Weber River (based on Rapid Assessment
Protocol). There may be some shifts in community structure in the east end of
the 21st Street Pond compared to the west end, but comparison with Buena
Ventura Park Pond does not reveal substantial impacts.
In summary, based on a weight of evidence approach, it is concluded that sediments are not of
population-level concern to benthic organisms at most locations. At the east end of the 21st
Street Pond, population-level risks may occur from xylenes, PCBs, and PAHs. PCBs may also
be of concern in sediments from Ogden River Reach B. However, at both these locations, results
are mixed and no strong conclusions can be drawn.

Risks from All Pathways Combined

One line of evidence (tissue-based HQ values for fish) is available to evaluate risks to aquatic
receptors (fish) from all aquatic exposure pathways combined (surface water, dietary exposure).
The findings from this line of evidence are summarized below.
                                                                                 5-18

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Line of Evidence
HQ calculations based on fish tissue
burdens

Findings
Risks from
may not be
concern.
4,4'-DDD and 4,4'-DDE may
site-related. Other chemicals






be significant, but
are not in a range



of

Based on this line of evidence, it is concluded that risks to fish from site-related chemicals in all
media (surface water, sediment, diet) are likely to be minimal.

Overall Conclusion Regarding Risks to Aquatic Receptors

The weight of evidence combined across all observations indicates that risks to aquatic receptors
from site-related chemicals are low at all locations, except potentially for risks to benthic
organisms from PCBs in the Ogden River and PCBs, PAHs, and xylenes in the east end of the
21st Street Pond.
                                                                                  5-19

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6.0    RISKS TO TERRESTRIAL PLANTS AND SOIL ORGANISMS

6.1    Hazard Quotient Approach

This section provides an assessment of terrestrial plant and soil organisms living in riparian
floodplain areas which are potentially impacted by contaminants from the Ogden Railyard.  The
structure and function of the riparian plant and invertebrate community is important because it
provides a significant portion of the energy, organic matter, and nutrient inputs to the stream, and
because riparian corridors usually provide high quality edge habitat as well as forage for a
variety of wildlife species.  Terrestrial plants and soil invertebrates are good indicators of
riparian floodplain condition because they reside directly in the soil and are not mobile. Based
on the site conceptual model (Figure 4-1), the following exposure pathways have been selected
for quantitative evaluation by the HQ approach:

              Direct contact of plant roots with chemicals in surface soils or dissolved into the
              interstitial water occupying the spaces between soil particles.

       •      Direct contact and soil ingestion by soil invertebrates.

This HQ-based evaluation is described below.

Exposure Assessment

Terrestrial plants are exposed to contaminants in soil principally through their roots. Exposure
may also occur due to deposition of dust on foliar (leaf)  surfaces, but this pathway is believed to
be small compared to root exposure. Soil organisms are exposed to contaminants in soil via
direct contact and ingestion. Because these terrestrial receptors are not highly mobile, exposures
are calculated on a sample-by-sample basis, rather than on average concentrations over some
selected location.  Soil data was limited to depths of 0 to 2 feet, because this layer is likely to be
the layer in which plant roots and soil organisms are located.  In accord with USEPA guidance,
non-detects were evaluated at one-half the detection limit.
                                                                                      6-1

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Toxicity Assessment

Toxicity values for the protection of terrestrial receptors (plants and soil organisms) from
contaminants in surface soils are available from several sources.   Each of the sources evaluated
in deriving soil toxicity benchmarks is described briefly in Appendix C-5, along with a hierarchy
for identifying the most relevant and reliable benchmark value when more than one value is
available.  The selected toxicity benchmark values for all chemicals analyzed in soil are shown
in Table C-5 of Appendix C.

Soil COPC Selection

Soil COPCs for terrestrial receptors were selected based on all available surficial soil data from
sampling locations at abandoned meanders near the 21st Street Pond and the riparian area west of
the railyard along the Weber River. Maximum soil concentrations for each chemical were
compared to their respective toxicity benchmark values (see Table C-5).  The results of the
COPC selection procedure for exposure of terrestrial receptors to soil are detailed in Appendix
D-3 and the chemicals that were selected for quantitative evaluation are presented below.
Quantitative COPCs for Exposure of Terrestrial Receptors to Soil
Inorganics
Aluminum Lead
Antimony Manganese
Arsenic Mercury
Barium Selenium
Cadmium Silver
Chromium Vanadium
Copper Zinc
Iron
PCBs
Aroclor 1260
VOCs
Tetrachloroethene
Calculation of Hazard Quotients

The detailed calculations of HQ values and graphical presentations for each COPC in each soil
sample are presented in Appendix E-7, along with a set of figures that display the results.  The
results are summarized in Table 6-1, and Figure 6-1 presents two examples (aluminum and
Aroclor 1260).  Inspection of Table 6-1 and the figures in Appendix E-7 yields the following
main conclusions:
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       •       Risks from inorganic COPCs are above a level of concern for most soil samples
              in both site and reference locations, and there is no apparent spatial pattern (see
              Figure 6-1 using aluminum as an example). This suggests that the benchmarks
              used to calculate HQ values for these COPCs are likely to be overprotective. As
              shown in Table 6-2, this conclusion is supported by noting that the concentrations
              of inorganics in site soil are all within the normal range expected in Utah
              (Shacklette and Boerngen 1984), and that the toxicity benchmarks for inorganic
              COPCs are all below the typical ranges.  Based on this, it is concluded that
              inorganic COPCs in soil are not of concern to terrestrial plants or soil
              invertebrates.

       •       HQs for PCBs (based on Aroclor) are above a level of concern in soils from
              abandoned meanders of the Ogden River near the 21st Street Pond (see Figure 6-
              1). This suggests that PCBs in material that was previously sediment in the
              Ogden River may inhibit the growth or survival of plants and soil invertebrates in
              this area.

6.2    Evaluation of Site-Specific Toxicity Tests

No site-specific toxicity tests for terrestrial receptors are available for the Ogden Railyard site.

6.3    Evaluation of Terrestrial Community Surveys

No plant or soil organism community evaluations are available for the Ogden Railyard site.

6.4    Weight of Evidence

Only one line of evidence (the HQ approach) is available to evaluate risks to plants and soil
invertebrates from COPCs in soils. The findings from this line of evidence are summarized
below:
 Line of Evidence
Findings
 HQ calculations based on
 concentrations measured in soil
Most HQ distributions are either below a level of concern
(>80% < 1E+00), or else do not appear to be site-related.
Risks from PCBs in soil near the 21st Street Pond could be
due to contaminated sediment in abandoned meanders of the
Ogden River.
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Based on this line of evidence, it is concluded that risks from site-related chemicals in surface
soil are not of concern in the riparian area west of the railyard site. Risks from PCBs in soils
near the 21st Street Pond may be of potential concern, but additional data (e.g., site-specific
toxicity tests) would be needed to confirm this conclusion.  The source of the PCBs in the
abandoned meanders is not known and may not be site-related.
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7.0    RISKS TO WILDLIFE RECEPTORS

This section presents an assessment of the populations of wildlife receptors that reside near the
Ogden Railyard. Wildlife receptors include a wide variety of mammals and birds that span a
variety of sizes and feeding guilds. Exposure of wildlife receptors may occur through ingestion
of contaminated surface water while drinking, ingestion of contaminated soil or sediment while
feeding, and ingestion of contaminated food web items.

As discussed in Section 4, it is not feasible to evaluate exposures and risks for each avian and
mammalian species potentially present within the site. For this reason, specific wildlife species
are identified as surrogates (representative species) for the purpose of estimation of exposure and
risk to groups of species within similar feeding guilds. The surrogate species at this site and the
exposure pathways evaluated for each species include:
Surrogate Species
Mink
Belted Kingfisher
Mallard Duck
Masked Shrew
American Robin
Feeding Guild
Mammalian piscivore
Avian piscivore
Avian omnivore
Mammalian insectivore
Avian insectivore
Exposure Pathways Evaluated
Ingestion of surface water, sediment, and fish
Ingestion of surface water, sediment, and benthic
invertebrates
Ingestion of surface water and soil
7.1    Hazard Index Approach

The basic equation used for calculation of an HQ value for exposure of a terrestrial wildlife
receptor to a chemical by ingestion of an environmental medium is:
                                 • RBA
                       BWr • TRVcr
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where:

                    =     HQ for exposure of receptor "r" to chemical "c" in medium "m"
       Ccm          =     Concentration of chemical"c" in medium "m" (mg/kg)
       IR,,, r          =     Intake rate of medium "m" by receptor "r" (kg/day)
       BWr          =     Body weight of receptor "r" (kg)
       DFmr         =     Dietary fraction of medium "m" by receptor "r" derived from site
       RB Ac m       =     Relative bioavailability of chemical "c" in medium "m" (%)
       TRVC r        =     Toxicity reference value for chemical "c" for receptor "r" (mg/kg
                          BW/d)

Because all receptors are exposed to more than one environmental medium, the total Hazard
Index (total HI) for a receptor from a specific chemical is calculated as the sum of HQs for that
chemical across all exposure pathways:
If the total HI is below 1E+00, it is believed that no unacceptable effects will occur in the
exposed population from the chemical of concern. If the total HI is above 1E+00, then
unacceptable effects may occur, with the likelihood and/or severity of effects tending to increase
as the value of the HI becomes larger.

7.1.1   Exposure Assessment

Wildlife receptors are generally mobile, and hence may be exposed to a range of different
concentration values in water, soil, and food web items as they move throughout their home
range.  As described previously in Section 3, for the purposes of this assessment the riparian
zones along the Weber River and the Ogden River were divided into a number of reaches (shown
in Figure 3-2). Exposure of wildlife receptors for each COPC in each medium within each
exposure unit was based on the 95% upper confidence limit (UCL) of the mean concentration or
on the maximum concentration, whichever was lower. The 95% UCL was calculated based on
the assumption that concentration values within each reach were distributed lognormally.  Non-
detects were evaluated by assuming a concentration value equal to one-half the detection limit.
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7.1.2   COPC Selection

The COPC selection procedure for exposure of wildlife receptors at this site was performed
using medium-specific concentration-based benchmarks in water, soil, or the diet.  The values
employed were derived by Sample et al. (1996) for several different types of mammalian and
avian receptors by back-calculation from dose-based no-effect levels in the receptor, assuming
typical intakes rates and body weight for the receptor. For COPC selection, the lowest NOAEL
concentration-based TRVs for mammals and avian receptors were employed. These
concentration-based benchmarks are presented in Appendix C-6. The maximum concentration
values of each analyte in each medium (surface water, sediment, soil, and fish tissue) were
compared to their respective concentration-based toxicity benchmark values, and any chemical
that had one or more values above the benchmark were retained as COPCs (Appendix D4 to D7).
 Chemicals that were selected for quantitative evaluation in one or more media are presented
below.
Quantitative COPCs for Exposure of Wildlife Receptors via Ingestion
Inorganics
Aluminum Lead
Antimony Manganese
Arsenic Mercury
Barium Selenium
Cadmium Thallium
Chromium Vanadium
Copper Zinc
Pesticides/
PCBs
4,4'-DDE
4,4'-DDD
4,4'-DDT
PCBs (as Aroclor)
PAHs
Benzo[a]pyrene
SVOCs
bis(2-Ethylhexyl)phthalate
Dibutylphthalate
7.1.3   Toxicity Assessment

Sample et al. (1996) provide a summary of available data on the toxicity of chemicals in wildlife
receptors. Based on these studies, Sample et al. (1996) identified avian and mammalian dose-
based TRVs for each chemical for which data are adequate. Two different types of TRVs were
identified. The first type is based on a reported exposure level (dose) that is not associated with
any adverse effects to the test organism. This is referred to as the No Observed Adverse Effect
Level (NOAEL) based TRV. The second type of TRV is based on a reported exposure level that
causes an observable adverse effect, and is referred to as the Lowest Observed Adverse Effect
Level (LOAEL) based TRV. A summary of the available studies reviewed by Sample et al.
(1996) and the selected NOAEL and LOAEL TRVs is presented in Appendix C-7.
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Risk calculations for each COPC were based on the geometric mean of the NOAEL and LOAEL
dose-based TRVs. This value is taken to be an estimate of the threshold dose level where
adverse effects first begin to occur in exposed organisms.  If cases where only one of the two
needed values was available (a NOAEL but no LOAEL, or a LOAEL but no NOAEL), the
missing value was estimated by assuming a ratio (LOAEL to NOAEL) of 5.  This ratio is based
on the observation that the true ratio of the NOAEL to the LOAEL is less than a factor of 5 in
96% of all cases where both values were  available (USEPA 1997). Thus, use of a factor of 5 is
conservative, and will tend to overestimate  extrapolated LOAEL values and will tend to
underestimate extrapolated NOAEL values. Table C-7c of Appendix C presents the  dose-based
TRVs used in this assessment to evaluate risks to wildlife receptors from ingestion of
contaminants in surface water,  soil, sediment, and food items.

Relative Bioavailablility

The TRVs calculated by Sample et al. (1996) are expressed in units of ingested dose. However,
the value of the TRV depends on how much of the ingested dose is actually absorbed, which in
turn depends on the properties of both the chemical and the exposure medium.  Ideally, toxicity
studies would be available that establish empiric TRVs for all site  media of concern (water, food,
soil, sediment).  However, most laboratory tests use either food or water as the exposure
medium, and essentially no studies use soil  or sediment.  Therefore, in cases where a TRV is
based on a study in which the oral absorption fraction is different that what would be expected
for a site medium, it is necessary  to adjust the TRV to account for  the difference in absorption.

The ratio of absorption from the study medium compared to absorption from site medium is
referred to as the relative bioavailability (RBA). For the purposes of this assessment, it was
assumed that organic COPCs are absorbed equally well from all site media (water, diet, soil,
sediment). For inorganic COPCs, available data on cadmium and  manganese suggest that
absorption from the diet is about half that from water (IRIS 2002). Based on this, when toxicity
data for inorganic COPCs were available from studies in food or water, but not both, the RBA
for a chemical in food compared to that for  water or other soluble forms (e.g., capsule)  was
assumed to be 0.5 (50%). That is:

       TRVwater = TRVdiet-0.50
       TRVdiet = TRVwaterorcapsule/ 0.50
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In the absence of any site specific data, it was assumed that chemicals in soil and sediment are
absorbed to the same degree as chemicals in food. It is considered likely that this approach may
tend to overestimate exposure and risk from ingestion of soil, but this is not known for certain.

7.1.4   Risk Calculations

Wildlife Intake Factors

Exposure parameters and dietary intake factors for each receptor for each medium were derived
from the Wildlife Exposure Factors Handbook (USEPA 1993), as well as a variety of other
sources.  In some cases, no quantitative data could be located, so professional judgement was
used in selecting exposure parameters. The exposure parameters selected for each wildlife
receptor are detailed in Appendix B,  and are summarized in Table 7-1. All intake values shown
in these tables are expressed in terms of wet weight except for soil and sediment, which are
expressed as dry weight.

In all cases, the fraction of the total dietary intake that comes from within the exposure reach was
assumed to be 100%.  This assumption was used because each of the exposure reaches is
relatively large, and most wildlife receptors being evaluated are expected to derive nearly all of
their food from within the exposure reach.  If any receptors were to derive a significant portion
of their diet from areas outside of the reaches being evaluated, estimated doses and risks could
be lower than predicted.

Calculation of Total Hazard Indices

Tables 7-2a to 7-2e present the total His for each wildlife receptor for each COPC at each reach.
Detailed calculations are provided in Appendix E-8. Inspection of these tables reveals the
following main conclusions:

       Kingfisher. As shown in Table 7-2a, risks to piscivorous birds (as represented by the
       belted kingfisher) appear to be below a level of concern for all chemicals at all exposure
       locations except for 4,4'-DDE at the 21st Street Pond.  This risk is due almost entirely to
       ingestion offish that have accumulated DDE in their tissues. The source of DDE is not
       known, but may be due to historic use of DDT in adjacent agricultural fields rather than a
       railyard-related release.
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       Robin. As shown in Table 7-2b, risks to passerine birds (as represented by the American
       robin) appear to be below a level of concern for all chemicals at all exposure locations
       except for lead at Weber River - Reach A.  This risk is due mainly to ingestion of lead in
       riparian area soil. However, this area is a reference area and is not suspected to have
       been impacted by site-related releases. Thus, site-related risks to the robin appear to be
       negligible.

       Mallard.  As shown in Table 7-2c, risks to aquatic birds that may ingest surface water,
       sediment and benthic macroinvertebrates (as represented by the mallard duck) appear to
       be below a level of concern for all chemicals at all exposure locations.

       Masked Shrew.  As shown in Table 7-2d, risks to mammalian insectivors (as represented
       by the masked shrew) appear to above a level of potential concern due to aluminum,
       arsenic, lead and mercury at the 21st Street Pond and along the Weber River. However, a
       similar risk is observed for these chemicals in Weber River - Reach A (a reference area),
       suggesting that the apparent risks from these chemicals may be due to TRV values that
       are overly conservative for this site.

       Mink. As shown in Table 7-2e, risks to semi-aquatic piscivorous mammals (as
       represented by the mink) appear to be below a level of concern for all chemicals at all
       exposure locations.

Based on this line of evidence, it is concluded that risks to wildlife receptors from site-related
chemicals are likely to be minimal.

7.2    Toxicity Equivalency Approach for PCBs

PCBs are a mixture of many different congeners, not all of which are equally toxic. Therefore,
risk estimates based on the measured levels of total PCBs (as Aroclor) in site media may not
always be reliable, since the relative concentration of the different congeners may vary among
locations and media, and may be quite different than the ratios in the material tested to develop
the Aroclor-based toxicity benchmarks. For these reasons, risks to mammals (mink) and birds
(kingfisher, mallard) from ingestion of PCBs in aquatic prey (fish, benthic macroinvertebrates)
were also evaluated using data on the concentrations of specific PCB congeners in aquatic prey.
This approach evaluates congeners based on their toxicity relative to
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2,3,7,8-tetrachlorodibenzodioxin (TCDD). The relative toxicity of a congener compared to that
of TCDD is expressed in terms of the Toxicity Equivalency Factor (TEF).  Table 7-3 lists
consensus TEF values for the 12 PCB congeners that have the highest toxicity in mammals,
birds, and fish. These TEF values were developed by a panel of experts assembled by the World
Health Organization (Van den Berg et al.  1998). Note that TEFs are often based on limited data,
and so they are only approximations of the relative toxicity of each congener, rounded to the
nearest half order of magnitude.

In this approach,  the aggregate toxicity of a mixture of different PCB congeners in a sample of
diet (this is referred to as the TCDD Equivalent Concentration,  or TEQ) is expressed as the sum
of the TEQ values for each of the 12 congeners in that sample:
                                     TEFt)
7.2.1   Exposure Assessment
Congener-specific concentration values were obtained for 15 samples offish and 4 samples of
benthic macroinvertebrates.  The TEQ values for these samples, corrected to account for
laboratory -based method blanks, are shown in the upper portion of Table 7-4. Because there
only a few samples from each reach, all exposure calculations were based on the maximum
concentration value from each reach (shown in the lower half of Table 7-4).

7.2.2 Toxicity Assessment

Birds (Kingfisher and Mallard)

For birds, the most sensitive endpoint of TEQ-induced toxicity  is abnormalities or deformities in
hatchlings.  In accord with the evaluation described in USEPA  (1997b), the best available study
of TEQ toxicity in bird eggs was reported by Hoffmann et al. (1998). Based on data from
kestrels, this study identified a concentration of 23 pg/g ww TEQ in eggs as the no-effect level,
and a concentration of 230 pg/g ww TEQ as the effect level.  These values were used for
evaluation of risks to kingfishers and mallards without application of any inter-species
uncertainty factors.

To convert this egg-based benchmark to a diet-based benchmark, the relationship between
concentration in the diet and concentration in bird egg must be  estimated. A study by Braune
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and Norstrom (1989) in herring gulls observed an average TEQ ratio (egg/diet) of about 50, and
this value was used to estimate the diet based-benchmarks:

       Diet benchmark (ppt TEQ in aquatic prey item) = Egg Benchmark (ppt TEQ in egg) / 50

Thus, the no observed effect concentration (NOEC) and the lowest observed effect concentration
(LOEC) in aquatic prey tissues are 0.46 and 4.6 ppt TEQ, respectively.

Mammals (Mink)

The TRV for ingestion of PCBs (as TEQ) by mink was based on the study of Tillitt et al. (1996).
In this study, groups of female mink were fed fish that contained differing levels of TEQ
(attributable to a mixture of PCBs, dioxins and furans), and the effects on reproductive success
(kit survival) were measured.  Tillet et al. reported exposure in units of pg TEQ/g fish tissue.
However, these TEQ values were calculated from measured PCB,  dioxin, and furan congener
concentrations using older TEF values recommended by Ahlborg et al. (1992, 1994).  In order to
ensure that the TRV was expressed in the same units as the site-specific fish tissue data, the fish
tissue TEQ values reported by Tillitt et al. were recalculated from  the congener data using the
more recent TEFs recommended by Van den Berg et al. (1998). These adjusted exposure levels
and the reported effects (incidence of kit mortality) were fit to several different types of
dichotomous models using USEPA's Benchmark Dose Software System. Several different
models fit the data well, but depending on the shape of the fit, yielded different estimates of the
dose that would cause a 10% extra risk of pup mortality.  The lowest and highest estimates were
as follows:
Dose Response Model
Quantal-Linear
Quantal-Quadratic
Benchmark Concentration
(pg/g TEQ in Diet)
3.3
14
Other models yielded values intermediate between these two. Because of the substantial range
in possible benchmark values, risk estimates were derived using both the lowest and the highest
benchmark values, as shown above.
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7.2.3   HQ Calculation

Risks to kingfisher, mallard, and mink were calculated as the ratio of the concentration in the
diet (ppt TEQ in aquatic prey item) divided by the appropriate diet-based benchmark. The
results are shown in Table 7-5.

For kingfisher (and other piscivorous birds), the concentration of PCBs in fish (as TEQ) in most
locations is intermediate between the NOAEL and the LOAEL benchmarks, indicating that risks
to the kingfisher are possible, but are likely to be relatively low.  Risks are somewhat higher for
individuals nesting along the Ogden River in the vicinity of the 21st Street Pond, but are even
present in reference areas (e.g., Buena Ventura Park Pond).  A similar pattern is observed for
mallards exposed along the Ogden River. Data are not available to evaluate risks to mallards
from ingestion of TEQ in benthic invertebrates from the 21st Street Pond.

For mink (and other piscivorous mammals), if TRY is based on the most conservative dose-
response model (quantal-linear), risks could range as high as 5E+00, with highest values along
the Ogden River in the vicinity of the  21st Street Pond. If the TRV is based on the quantal-
quadratic dose response model, risks to mink would not be significant in any areas.

7.3    Evaluation of Site-Specific Toxicity  Tests

No site-specific toxicity tests for wildlife receptors are available  for the Ogden Railyard site.

7.4    Evaluation of Wildlife Surveys

No wildlife evaluations are available for the Ogden Railyard site.

7.5    Weight of Evidence

Non-PCB Chemicals

Only one line of evidence (the HI approach) is available to evaluate risks to wildlife receptors
from non-PCB COPCs in water, soil, and the  diet. The findings  from this line of evidence are
summarized below:
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Line of Evidence
HI calculations based on
concentrations measured
and diet
COPC
in soil, water
Findings
Most HI values are either below a level
not appear to be site-related.
of concern or else do
Based on this line of evidence, it is concluded that risks from non-PCB site-related chemicals in
surface water, surface soil, and the diet are not of population-level concern to wildlife receptors
either in the riparian area along the Weber River west of the railyard site or along the Ogden
River north of the railyard.
PCBs
Two lines of evidence (both based on the HQ approach) are available to evaluate risks to wildlife
from PCBs.  The findings from these lines of evidence are summarized below:
Line of Evidence
HQ calculations based on total Aroclor
concentrations in soil, sediment and
the diet
HQ calculations for semi-aquatic birds
and mammals based on congener-
specific data in aquatic prey items
(TEQ approach)
Findings
Risks are below a level of concern for all receptors at all
locations.
Depending on the toxicity benchmarks selected, risks could
be of potential concern in the 21st Street Pond (kingfisher,
mink) and the Ogden River near the pond (kingfisher,
mallard, mink). Risk levels are likely to be low to moderate.
Based on these lines of evidence, it is concluded that risks from PCBs may be possible for
specific individuals or family groups of semi-aquatic wildlife residing along the Ogden River or
in the vicinity of the 21st Street Pond (the locations where PCB levels are highest in fish and
benthic organisms).

Extrapolation from these sublocation-specific results to the potential for population-level effects
is especially difficult, since no site-specific data were located on the size or density of local
populations of kingfishers, mallards, or mink. However, a screening evaluation of population-
level risk was performed as follows.  First, the local population was defined as all breeding pairs
that might reside anywhere along the Ogden River in Reaches A-D and along the Weber River in
Reaches A-D (see Figure 3-2).  These two river segments are each about 6 km long. Next, the
number of breeding pairs that might exist in this area were estimated by dividing the total length
of shoreline (about 12 km) by the linear length of the home range  for kingfishers (about 1.5 km)
and mink (about 2 km) (USEPA 1993). This indicates that there might be about 8 pairs  of

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kingfishers and about 6 pairs of mink in the local population.  A similar density (a total of 6
pairs) was assumed for mallards. Finally, based on the finding that risks to breeding pairs are of
concern mainly at two potential home ranges (Ogden Reach B and the 21st Street Pond), the
fraction of the population that might be impacted was estimated to be about 25% (2/8) for
kingfisher and about 33% (2/6) for mink and mallards. These percentages of individuals at risk
are sufficiently high that population-level risks to semi-aquatic mammalian and avian receptors
are considered to be of potential concern at this site.
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8.0    UNCERTAINTIES

Quantitative evaluation of ecological risks is generally limited by uncertainty regarding a
number of important data.  This lack of knowledge is usually circumvented by making estimates
based on whatever limited data are available, or by making assumptions based on professional
judgement when no reliable data are available. Because of these assumptions and estimates, the
results of the risk calculations are themselves uncertain, and it is important for risk managers and
the public to keep this in mind when interpreting the results of a risk assessment.

The following text summarizes the key sources of uncertainty influencing the results of this
ERA.

8.1    Uncertainty in the Nature and Extent of Contamination

Representativeness of Samples Collected

Concentration levels of COPCs in environmental media are often quite variable as a function of
location, and may also vary significantly as a function of time.  Thus, samples collected during a
field sampling program may or may not fully characterize the spatial and temporal variability in
actual concentration levels.  At this site, all of the field samples were collected in accord with
sampling and analysis plans that specifically sought  to ensure that samples were representative.
However, in some locations, the number of samples collected was relatively small. Thus,
without the collection of very  large numbers of samples over both space and time, some
uncertainty remains as to whether the samples collected provide an accurate representation of the
distribution of concentration values actually present.

Accuracy of Analytical Measurements

Laboratory analysis of environmental samples is subject to a number of technical difficulties,
and values reported  by the laboratory may not always be exactly correct. However, all data used
in this risk assessment had sufficient accompanying quality assurance  data to ensure that results
were within acceptable bounds for accuracy and precision.  The magnitude of analytical error is
usually small compared to other sources of uncertainty, although the relative uncertainty
increases for results that are near the detection limit.
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8.2    Uncertainty in Exposure Assessment

Exposure Pathways Not Evaluated

Exposure pathways selected for quantitative evaluation in this ERA do not include all potential
exposure pathways for all ecological receptors. Exposure pathways that were not evaluated in
this ERA included:

•      Ingestion of prey items and sediments by benthic invertebrates
•      Ingestion of water, sediment, and prey items by fish
       Direct contact offish with contaminated sediments
       Dermal exposure of wildlife to soil, sediment, and surface water
       Ingestion of terrestrial food items by wildlife receptors

Omission of these pathways will tend to lead to an underestimation of total risk to the exposed
receptors.  However, as discussed previously, most of these exposure pathways are likely to be
minor compared to other pathways that were evaluated, and the magnitude of the
underestimation is not likely to be significant in most cases.

One possible exception is direct contact offish with contaminated sediment. This pathway is of
chief concern for species that tend to feed in the sediments (catfish, suckers, carp). Direct
contact between the fish and the sediment could lead to dermal absorption of chemicals such as
PAHs and PCBs, and these could cause effects such as increased tumors (e.g., Pinkney et al.
2001).  However, the ecological significance of such tumors is uncertain, since the consequence
of tumors on survival or reproductive success in fish is not well established.

Another possible exception is ingestion of prey items by benthic invertebrates. Although the
general consensus is that uptake from food is usually less than from water (Clements 1991),
available data are sufficient to establish that the ingestion pathway can be an important source of
exposure to some aquatic macroinvertebrates (Timmermans et al. 1992), and that dietary
exposures can be capable of limiting growth in at least some cases (Duddridge and Wainwright
1980).  Based on the lack of data on the toxicity of contaminants in food chain items on aquatic
invertebrate  receptors, quantitative prediction of hazard using the traditional HQ and HI
approach is not yet possible.  To the extent that dietary exposures tend  to be less important than
water exposures in  at least some species, failure to quantify the hazard  from the ingestion
pathway may not lead to a substantial underestimation of total hazard.  However, the food
pathway may be more important than the water pathway for some contaminants and/or some
receptor species. Therefore, the inability to quantify hazard from ingestion exposures is a	
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potential source of uncertainty that may tend to underestimate impacts of contamination on
aquatic macroinvertebrate receptors.

Chemicals Not Detected

Any chemical that was never detected in a site medium was not evaluated in exposures of
receptors to that medium. However, in some cases, the analytical detection limit was too high to
expect the chemical would be detected even if it were present at a level of concern. Chemicals
in this category were assigned to the Qualitative COPC list (Type 2). Appendix C identifies
chemicals assigned to this category, and the results are summarized in Table 8-1. As seen, a
number of such chemicals exist. Omission of these chemicals could result in an underestimation
of risk. However, the magnitude of the error is likely to be low in most cases. This is because if
the  chemical were actually site-related or if it were present at a level of substantial health
concern, it likely would have occurred at levels above the detection limit at least a few times.
Thus, while the hazard from Qualitative Type 2 COPCs is unknown, it is probably not large
enough to cause a substantial underestimation of risk.

Exposure Area Concentration Values

For exposures that are based on the average concentration across many samples  rather than
exposures that are based on individual samples (this is the case for most wildlife species), the
desired input parameter is the true  mean concentration of a contaminant within a medium,
averaged over the area where exposure occurs. In this assessment, rather than using the sample
mean, exposure was based on the 95% UCL of the mean, or the maximum value (which ever was
lower). This approach is much more likely to overestimate than underestimate true risk, and this
is a source of conservatism in the risk estimates.

Wildlife Exposure Factors

The intake (ingestion) rates for food, soil, water, and sediment used to estimate exposure of
wildlife at the site are derived from literature reports of intake rates, average body sizes, dietary
compositions, consumption rates, and metabolic rates by receptors at other locations or from
measurements of laboratory-raised organisms.  These values may or may not serve as
appropriate models for site-specific intake rates of wild receptors at this site.  Moreover, the
actual dietary composition of an organism will vary daily and seasonally. In addition, some
wildlife receptor-specific intake rates are estimated by extrapolation from data on a closely
related species or by use of allometric scaling equations (scaling of intake rates based on body
weights).  This introduces further uncertainty into the exposure  and risk estimates. These	

-------
ECOLOGICAL RISK ASSESSMENT FOR THE OGDEN RAILYARD SITE	FINAL
uncertainties could either under- or overestimation the actual exposures of wildlife to COPCs in
water, sediment, soil, and diet.

Absorption From Ingested Doses

The toxicity of an ingested chemical depends on how much of the chemical is absorbed from the
gastrointestinal tract into the body. However, the actual extent of chemical absorption from
ingested media (soil, sediment, food, and water) is usually not known. The hazard from an
ingested dose is estimated by comparing the dose to an ingested dose that is believed to be safe,
based on tests in a laboratory setting.  Thus, if the absorption is the same in the laboratory test
and the  exposure  in the field, then the prediction of hazard will be accurate. However, if the
absorption of chemical from the site medium is different (usually lower) than occurred in the
laboratory study,  then the hazard estimate will be incorrect (usually too high). In this
assessment, estimates of wildlife exposure due to incidental soil and sediment ingestion
conservatively assume a relative bioavailability of 100% for all chemicals. This assumption is
expected to overestimate contaminant doses to wildlife, since absorption efficiencies for many
chemicals (especially metals) are lower in site media (especially soil and sediment) than in most
laboratory studies.

8.3    Uncertainties in Effects (Toxicity) Assessment

Representativeness of Receptors Evaluated

Risk characterizations for aquatic receptors are based on a generalized set of species found in
freshwater aquatic communities. However, not all of these species are likely to occur at this site.
Thus, HQ values  above 1E+00 may reflect risks to species that are absent at the site, and risks to
species  that are actually present at the site may be lower.

Risks to wildlife are assessed for a small subset of the species likely to be present in the areas
surrounding the Ogden Railyard. The representative wildlife species used for quantitative
evaluation at this  site was selected to represent a range of taxonomic groups and life history
types of species likely to occur in the area. These species may not, however, represent the full
range of sensitivities present. The species selected may be either more or less sensitive to
contaminant exposures than typical species located within the area.
                                                                                      8-4

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ECOLOGICAL RISK ASSESSMENT FOR THE OGDEN RAILYARD SITE	FINAL
Absence ofToxicity Data for Some Chemicals

As discussed in Section 4, no reliable toxicity benchmark could be located for a number of
chemicals that were detected in one or more samples of site media.  Chemicals in this category
were assigned to the Qualitative COPC list (Type 1). Appendix C identifies chemicals assigned
to this category, and the results are summarized in Table 8-1.  As seen, a number of such
chemicals exist.  The inability to evaluate hazard from these chemicals could result in an
underestimation of risk, but the magnitude of the error is likely to be low.  This is because
absence of a toxicity benchmark for a chemical is often due to the fact that toxicological concern
over that chemical is low. That is, chemicals that lack benchmarks are often considered to be
relatively less hazardous that those for which benchmarks do exist.  To the extent that this is true
(even though there are likely some exceptions to this rule), risks from Qualitative Type 1  COPCs
at this site are likely not of substantial concern.

One potential exception to this is the broad set of alkanes and alkenes that are the principal
constituents of the DNAPL  at the site. These chemicals are likely to cause narcotic effects on
benthic organisms, similar to the effects of the PAH component of the DNAPL plume. Thus,
risks to benthic organisms from sediments saturated by DNAPL may be underestimated based on
an assessment of PAHs only.

Extrapolation of  Toxicity Data Between Receptors

Toxicity data are not available for all  of the species of potential concern at the site. Thus, it is
sometimes necessary to estimate toxicity values for a receptor by extrapolating toxicity data
across similar species.  This extrapolation may either overestimate or underestimate the risk to
the actual receptor, depending on whether the actual receptor is less sensitive or more sensitive
that the species for which data are available.  The direction of the error introduced by this
extrapolation is unknown, but could be significant in some cases.

Extrapolation of  Toxicity Data Across Dose  or Duration

In some cases, TRY data are available only for high dose exposures, and extrapolation to  low
doses (similar to those that actually occur at the site) is a source of uncertainty.  Likewise, some
TRVs are based on relatively short-term exposures, and extrapolation to long-term conditions is
uncertain, especially for chemicals that tend to build up in the exposed organism.  When such
extrapolations are necessary, it is customary to include an "uncertainty factor" in the derivation
of the benchmark to account for the extrapolation. In general, the "uncertainty factor" is likely to

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ECOLOGICAL RISK ASSESSMENT FOR THE OGDEN RAILYARD SITE	FINAL
be somewhat too large, so the benchmarks derived in this way are often conservative (overly
protective).

Extrapolation of Toxicity Data from Laboratory to Field Conditions

Even when data are available for a species of concern at the site, the data are usually generated
under laboratory conditions and extrapolation of those data to free-living receptors in the field is
uncertain. In some cases, site-specific factors may tend to modify (often decrease) the toxicity of
chemicals in surface water, sediments, and soil. For example, metals in surface water may be
bound to soluble organic materials that reduce the tendency for the metal to bind to respiratory
structures offish or benthic organisms. Similarly, the presence of organic matter in soil, along
with other substances, may have a significant influence on actual toxicity. Thus, risks  based on
literature-derived toxicity factors may sometimes overestimate risk from site media.

Uncertainty in the TEQ Approach for PCBs

An important limitation to the TEQ approach for evaluating risks from ingestion of PCBs is that
the TEFs used to calculate the TEQ values are based mainly on the relative binding affinity of
different congeners for the intracellular protein (the aryl hydrocarbon receptor) that mediates
PCB-induced toxicity. However, the actual toxic response to an ingested dose of PCBs also
depends on other toxicokinetic and toxicodynamic variables, such as the congener-specific rate
of absorption, metabolism, distribution, and excretion, as well as species- and tissue-specific
differences in response per unit TEQ bound to the receptor.  Thus, proper calculation of health
risk from oral exposure to PCBs in a site medium should take all of these variables into account.
However, detailed species-specific toxicokinetic and toxicodynamic data are not available for
most congeners, so this type of calculation is not possible at present. Thus, risk calculations
based on the TEQ approach should be interpreted with this limitation in mind.  Nevertheless, the
TEQ approach is considered to be more reliable that the Aroclor-based approach, which does not
account for the large and easily measurable changes in congener composition in environmental
samples compared to commercial Aroclor mixtures.
                                                                                     8-6

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ECOLOGICAL RISK ASSESSMENT FOR THE OGDEN RAILYARD SITE	FINAL
8.4    Uncertainties in Risk Characterization

Interactions Among Chemicals

Most toxicity benchmark values are derived from studies of the adverse effects of a single
contaminant. However, exposures to ecological receptors usually involve multiple
contaminants, raising the possibility that synergistic or antagonistic interactions might occur.
However, data are not adequate to permit any quantitative adjustment in toxicity values or risk
calculations based on inter-contaminant interactions. In accordance with USEPA guidance,
effects from different COPCs are not added unless reliable data are available to indicate that the
two (or more) chemicals act on the same target tissue by the same mode of action. At this site,
HQ values for each COPC were not added across different chemicals, except for PAHs and
PCBs.  If any of the other COPCs at the site act by a similar mode  of action, total risks could be
higher than estimated.

Estimation of Population-Level Impacts

Assessment endpoints for the receptors at this site are based on the sustainability of exposed
populations, and risks to some individuals in a population may be acceptable if the population is
expected to remain healthy and stable.  However, even if it is possible to accurately characterize
the distribution of risks or  effects across the members of the exposed population, estimating the
impact of those effects on the population is generally difficult and uncertain. For this ERA, it
was assumed that if more than 80% of the population was below a level of concern, then
population-level effects were not likely. Conversely, it was assumed that if more than 20% of
the individuals in a population had HQ values above 1E+00, then impacts on population
sustainability might occur. However, the relationship between adverse effects on individuals and
effects on the population is complex, depending on the demographic and life history
characteristics of the receptor being considered as well as the nature, magnitude and frequency
of the chemical stresses and associated adverse effects.  Thus, the actual distribution of HQ
values that will lead to population-level adverse effects will vary from receptor to receptor, and
use of a single criterion (80% below  1E+00) may not be appropriate in  all cases.

8.5    Summary of Uncertainties

Table 8-2 summarizes the various sources of uncertainty in this ERA, along with a qualitative
estimate of the direction and magnitude of the likely errors attributable to the uncertainty. Based
on all of these considerations, the HQ and HI values calculated and presented in this ERA
section should be viewed as having substantial uncertainty. Because of the inherent	

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ECOLOGICAL RISK ASSESSMENT FOR THE OGDEN RAILYARD SITE	FINAL
conservatism in the derivation of many of the exposure estimates and toxicity benchmarks, these
HQ and HI values should generally be viewed as being more likely to be high than low, and
should be interpreted in a weight-of-evidence approach based on other types of available
information as well.

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ECOLOGICAL RISK ASSESSMENT FOR THE OGDEN RAILYARD SITE	FINAL
9.0   REFERENCES

Ahlborg UG, Brouwer A, Fingerhut MA, Jacobson JL, Jacobson SW, Kennedy SW, Kettruo
AAF, Koeman JH, Poiger H, Rappe C, Safe SH, Seegal RF, Tuomisto J, van den Berg M.  1992.
Impact of poly chlorinated dibenzo-p-dioxins, dibenzofurans, and biphenyls on human and
environmental health, with  special emphasis on applications of the toxic equivalency factor
concept. Eur J Pharmacol 228:179.

Ahlborg UG, Becking CG,  Birnbaum LS, Brouwer A, Derks HJGM, Feeley M, Golor G,
Hanberg A, Larsen JC, Liem AKD, Safe SH, Schlatter C, Waern F, Younes M, Yrjanheikki E.
1994. Toxic Equivalency Factors for Dioxin-Like PCBs. Report on a WHO-ECEH and IPCS
Consultation, December 1993  Chemosphere 28:1049.

Braune, B.M., and RJ. Norstrom. 1989.  Dynamics of Organochlorine Compounds in Herring
Gulls: III. Tissue Distribution and Bioaccumulation in Lake Ontario Gulls. Environmental
Toxicology and Chemistry. 8:957-968.

Clements, W.H.  1991.  Community Responses of Stream Organisms to Heavy metals: A review
of Observational and Experimental Approaches. In:  Newman MC., Mclntosh AW (eds.). Metal
Ecotoxicology, Concepts and Applications. Lewis Publishers, pp 363-389.

Duddridge, I.E., and M. Wainwright.  1980. Heavy Metal Accumulation by Aquatic Fungi and
Reduction in Viability of Gammaruspulex Fed Cd+2-Contaminated Mycelium. Water Res.
14:1605-1611.

Forrester Group. 200la. Data Summary Report - Samples Collected through December 2000.
Prepared for the Union Pacific Railroad Company. 2-13-2001a.

Forrester Group. 2001b. INTERIM Remedial Investigation Report, Ogden Railyard Northern
Area. Prepared for the Union Pacific Railroad, Ogden, Utah. 7-9-2001.

Forrester Group. 2002. Draft Remedial Investigation Report for the Ogden Railyard.  Prepared
for the Union Pacific Railroad, Ogden, Utah. CERCLA-8-99-12. March 27, 2002.

Hoffman, D.J., M. J. Melancon, P.N. Klein, J.D. Eisenmann, and J.W. Spann. 1998.
Comparative Developmental Toxicity of Planar PCB Congeners in Chickens, American Kestrels,
and Common Terns. Environmental Toxicology and Chemistry  17: 747-757.
                                                                                9-1

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ECOLOGICAL RISK ASSESSMENT FOR THE OGDEN RAILYARD SITE	FINAL
IRIS. 2002. Integrated Risk Information System. On-line toxicity database created and
maintained by USEPA.  Available at http://www.epa.gov/iriswebp/iris/index.html.

Jarvinen, A.W., and G.T. Ankley.  1999. Linkage of Effects to Tissue Residues: Development
of a Comprehensive Database for Aquatic Organisms Exposed to Inorganic and Organic
Chemicals.

Pinkney AE, JC Harshbarger, EB May, and MJ Melancon. 2001. Tumor Prevalence and
Biomarkers of Exposure and Response in Brown Bullheads (Ameirus nebulosus) from the Tidal
Potomac Watershed. Environ. Toxicol. Chem. 20:1196-1205.

Prothro, M. 1993. Office of Water Policy and Technical Guidance on Interpretation and
Implementation of Aquatic Life Metals Criteria.  Memorandum to Water Management Division
Directors and Environmental Services Directors, USEPA Regions I-X. 10-1-1993.

Safety-Kleen.  1998. Phase I Remedial Investigation Report. Prepared for Union Pacific
Railroad. 1998.

Sample, B.E., D.M. Opresko, and G.W. Suter II.  1996.  Toxicological Benchmarks for Wildlife:
1996 Revision. Oak Ridge National Laboratory.  Document #ES/ER/TM-86/R3.

Shacklette, H.T., and J.G. Boerngen. 1984. Element Concentrations in Soils and Other Surficial
Materials of the Conterminous Unites States. USGS Professional Paper 1270.

Tillitt, D.E., R.W. Gale, J.C. Meadows, J.L. Zajicek, P.H. Peterman, S.N. Heaton, P.O. Jones,
SJ. Bursian, TJ. Kubiak, J.P. Giesy, and RJ. Aulerich .  1996. Dietary Exposure of Mink to
Carp from Saginaw Bay. 3.  Characterization of Dietary Exposure to Planar Halogenated
Hydrocarbons, Dioxin Equivalents, and Biomagnification. Environmental Science and
Technology  30(1): 283-289.

Timmermans, K.R., E.  Spijkerman, M. Tonkes, and H. Govers.  1992. Cadmium and Zinc
Uptake by Two Species of Aquatic Invertebrate Predators from Dietary and Aqueous Sources.
Can. J. Fish. Aquat. Sci. 49:655-662.

UDEQ.  2001.  Utah State Standards for Quality of Water. Rule R317-2. Utah Dept of
Environmental Quality.

USEPA.  1989. Water Quality Criteria to Protect Wildlife Resources. U.S. Environmental
Protection Agency, Environmental Research  Laboratory, Corvallis, OR. EPA/600/3-89/067;
NTIS PB 89 220 016.

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ECOLOGICAL RISK ASSESSMENT FOR THE OGDEN RAILYARD SITE	FINAL
USEPA.  1992. Framework for Ecological Risk Assessment. U.S. Environmental Protection
Agency. EPA/630/R-92/001.

USEPA.  1993. Wildlife Exposure Factors Handbook, Volumes 1 and II.  U.S. Environmental
Protection Agency.  EPA/600/R-93/187a and b.

USEPA.  1997a. Ecological Risk Assessment Guidance for Superfund: Process for Designing
and Conducting Ecological Risk Assessments. Interim Final. U.S. Environmental Protection
Agency, Environmental Response Team, Edison, NJ.

USEPA.  1997b. Proposed MATCs for 2,3,7,8,-TCDD TEQs in Rocky Mountain Arsenal
(RMA) Biota. Memo to Biological Assessment  Subcommittee (B AS) for the Rocky Mountain
Arsenal from Gerry Henningsen, Dale Hoff,  Steve Bradbury, and Tala Henry at USEPA Region
VIII. U.S. Environmental Protection Agency. October 28.

USEPA.  1998. Guidelines for Ecological Risk Assessment. U.S. Environmental Protection
Agency. EPA/630/R-95/002F.

USEPA.  1999a. Sampling and Analysis Plan to Support Human Health and Ecological Risk
Assessment for the Ogden Railyard.  Prepared by IS SI Consulting Group, Inc.  U.S.
Environmental Protection Agency.  12-21-1999.

USEPA.  1999b. Ogden Railyard BTAG Meeting Minutes prepared and distributed by Mario
Robles (EPA site manager), Feb. 14, 1999.

USEPA. 2000. Equilibrium Partitioning Sediment Guidelines (ESGs) for the Protection of
Benthic Organisms: PAH Mixtures. U.S. Environmental Protection Agency, Office of Science
and Technology and Office of Research and Development.  April 5, 2000.

USEPA. 200la. Sampling and Analysis Plan to Support Human and Ecological Risk
Assessment, Phase 3. Prepared by Syracuse  Research Corp. U.S. Environmental Protection
Agency. 7-18-2001.

USEPA. 2001b.  Screening Level Ecological Risk Assessment for the Ogden Railyard Site.
2001. Prepared by Syracuse Research Corp.  U.S. Environmental Protection Agency. 3-5-2001.

USEPA. 2001c. Risk Assessment Guidance for Superfund: Volume Ill-Part A, Process for
Conducting Probabilistic Risk Assessment. U. S. Environmental Protection Agency, Office of
Emergency  and Remedial Response. EPA 540-R-02-002.
                                                                                9-3

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ECOLOGICAL RISK ASSESSMENT FOR THE OGDEN RAILYARD SITE	FINAL
USEPA. 2002. Final - Phase 3 Field Sampling Summary Report in Support of Risk Assessment
at Ogden Railyard, Ogden, Utah.  Prepared for USEPA Region 8. October 2002.

USEPA. 2003. Baseline Human Health Risk Assessment for the Ogden Railyard Site, Ogden,
Utah.  Report prepared by USEPA Region 8 with the technical assistance of Syracuse Research
Corporation.

USEPA/ERTC. 2000. Supplemental Field Sampling Plan for Work Assignment No. 0-119.
Ogden Railyard. Prepared for the USEPA by Lockheed Martin REAC, GSA Raritan Depot,
Edison, New Jersey. 5-28-2000.

USEPA/ERTC. 2001. Final Field Sampling Report in Support of Risk Assessment at Ogden
Railyard. Prepared by Mark Sprenger (USEPA/ERTC), Barry Forsythe and Richard Henry
(REAC/ERT Lockheed Martin).

Van den Berg, M. L., A.T. Birnbaum, C. Bosveld, B. Brunstrom, P. Cook, M. Feeley, J.P. Giesy,
A. Hanberg, R. Hasegawa, S.W. Kennedy, T. Kubiak, J.C. Larsen, F.X.R. van Leeuwen, A.K.D.
Liem, C. Nolt, R.E. Peterson, L. Poellinger, S. Safe, D. Schrenk, D. Tillitt, M. Tysklind, M.
Younes, F. Waern, and T. Zacharewski. 1998. Toxic Equivalency Factors (TEFs) for PCBs,
PCDDs, PCDFs for Humans and Wildlife.  Environmental Health Perspectives 106: 775-792.
                                                                               9-4

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                                   Railyard Location
               .
        /  -:?7g
                                                       Ine Jrorresler

                                                      U.P.R.R. RAILYARD - OGDEN, UTAH
                                                      RA L YARD LOCAT ON MAP
                                      Figure 1-1
                             Ogden Railyard Location Map

              Baseline Ecological Risk Assessment for the Ogden Railyard Site
Fig 1-1 Railyard Map.doc

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This page intentionally left blank to facilitate double-sided printing.

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    '•3 a
    .2 o
     X '-M
       Wo3
        H
    o
     a
     o
    • i-H
    +J
     O
     o
    O
     03
    to
    Q
   STEP1:  SCREENING LEVEL
        •   Site Visit
        •   Problem Formulation
        •   Toxicity Evaluation
   STEP 2:  SCREENING LEVEL
        •   Exposure Estimate
        •   Risk Characterization
                        STEP 3: PROBLEM FORMULATION
                                Toxicity Evaluation
                         Assessment
                          Endpoints
                      Conceptual Model
                     Exposure Pathways
            Questions/Hypotheses
   STEP 4: STUDY DESIGN AND DQO
           PROCESS
        •  Lines of Evidence
        •  Measurement Endpoints
Work Plan and Sampling and Analysis Plan
                       STEP 5: VERIFICATION OF FIELD
                                  SAMPLING DESIGN
                  STEP 6:  SITE INVESTIGATION AND DATA
                                  ANALYSIS
                       STEP 7: RISK CHARACTERIZATION
                       STEPS: RISK MANAGEMENT
Risk Assessor
  and Risk
  Manager
 Agreement
                                                                   SMDP
   SMDP
                                                                  SMDP
                                              SMDP
                                              SMDP
                                             SMDP
   Source: USEPA 1997a
                              SMDP = Scientific/Management Decision Point
                    Figure 1-2 Eight Step Process for Ecological
                        Risk Assessment at Superfund Sites

            Baseline Ecological Risk Assessment for the Ogden Railyard Site
Fig 1-2 ERAGs.doc

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                                               Figure 2-1

                                Ogden Kailyard Areas of Interest (AOIs)
 LEGEND

RI/FS AREA OF INTEREST
                                                                                           OGDEN RAILYARD - OGDEN, UTAH
                                                                            Tn
                                                            he Forrester  Ijrrouip
AOI LOCATION MAP
                                                                  Ai, MANAWMTNT & PI.ANMW;

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This page intentionally left blank to facilitate double-sided printing.

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                                                                                            OGDEN KAILYARD - OGDEN, UTAH
                                                       Figure 3-1
                                              Location of the DNAPL Zone

                              Baseline Ecological Risk Assessment for the Ogden Kailyard Site
Fig 3-1 DNAPL Zone.doc

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                                          S pring s
                                          Springs (symbol background)
                                          Railroad
                                      i o a d s
                                        ,/ Major Road;
                                      /\/Primary Road;
                                          Secondary Road;
                                          Minor Road;
                                      /"\/ Strea m ;
                                      Wafer Bodie;
                                      ^^H Lake. Pond. Perennial Stream
                                          Reservoir
                                          M arsh
                           Figure 3-2
         Exposure Locations for Ecological Receptors
Baseline Ecological Risk Assessment for the Ogden Rally ard Site

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                                                                                                                                      Aquatic Receptors
                                                                                                             Fish
    Benthic
Macroinvertebrate
  Mammalian
Piscivore (mink)
Avian Piscivore
  (kingfisher)
Avian Omnivore
   (mallard)
 LEGEND:
              I    Pathway is not complete; no evaluation required
 	X	    Pathway is complete, but is judged to be minor; qualitative evaluation

 	O	    Pathway is complete and could be significant;  however, data are lacking to perform quantitative assessment; qualitative evaluation

 	•	    Pathway is complete and could be significant;  quantitative evaluation
                                                                                        Figure 4-1
                                                                  Site Conceptual Model for Ecological Exposure
                                                         Baseline Ecological Risk Assessment for the Ogden Railyard Site
Fig 4-1  Eco SCM.xls

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       Figure 4-2. Conceptual Approach for Characterizing Population-Level Risks
          100
           10
0

I
a
I
           0.1 --
          0.01

                                                                       V
                     None        Minimal     Moderate         High         Severe


                           Qualitative Level of Concern for Population Effects
Figure 4-2.xls

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                                         Figure 4-3
                                COPC Selection Procedure

                 Baseline Ecological Risk Assessment for the Ogden Railyard Site
    Does compound have a toxicity reference
               value (TRY)?
 no
Type 1
              yes
     Is compound detected in the medium?
                                          no
              yes
   Is maximum detected value greater than the
                  TRY?
 no
              yes
            Quantitative COPC
                      Qualitative COPC
                       yes
Type 2
                     Is Mean DL > TRY?
                                                                 no
                        Not a COPC
COPC Screen Flowchart.xls

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                                                                     Figure 5-1
                                         Aquatic Receptor HQs for Direct Contact with Surface Water
                                        Baseline Ecological Risk Assessment for the Ogden RailyardSite
                                                                   ALUMINUM

                                                         Based on the Acute Toxicity Benchmark
1E+03 -
1E+02 -
S 1E+01 -
| 1E+00 -
1 1E-01 -
t 1E-02-
| 1E-03 -
1E-04 -





•»
f.
a>







o


o NDHQ • Detect HQ 	 HQ = 1



«.
*































. *'








O







(BO







(BCD




21st St 21st St BVP Ogden o den O den Weber Weber Weber Weber
Pond - Pond - Pond Reach A n S ^ „ S ^ Reach A Reach B Reach C Reach D
Reach B Reach C
West East (ref) (ref) (ref)
Statistic
Detect HQs > 1 :
ND HQs > 1 :
AllHQs%
o o








,
o








%
(D O








. .
CO







21st St 21st St BVP Ogden Ogden Ogden Weber Weber Weber Weber
Pond - Pond - Pond Reach A Reach B Reach C Reach A Reach B Reach C Reach D
West East (ref) (ref) (ref)
Statistic
Detect HQs > 1 :
ND HQs > 1 :
AllHQs
-------
                                                                     Figure 5-2
                                         Aquatic Receptor HQs for Direct Contact with Surface Water
                                        Baseline Ecological Risk Assessment for the Ogden RailyardSite
                                                                 NAPHTHALENE

                                                         Based on the Acute Toxicity Benchmark
1E+03 -
1E+02 -
§ 1E+01 -
& 1E+00 -
1 1E-01 -
O1
1 1E-02 -
| 1E-03 -
1E-04 -
1E-05 -




CO
OHO
o



•
•

•n,
•

o ND HQ • Detect HQ 	 HQ = 1




o
00 O
o












oo
00
0












4B
°°«






^B
O





/«•
0
0





«•>
•oo
0 0
•

21st St 21st St BVP Ogden , , Weber Weber Weber Weber
Ogden Ogden
Pond - Pond - Pond Reach A Reach B Reach C Reach A Reach B Reach C Reach D
West East (ref) (ref) (ref)
Statistic
Detect HQs > 1 :
ND HQs > 1 :
AllHQs
A
00
•


Weber
Reach D

Statistic
Detect HQs > 1 :
ND HQs > 1 :
AllHQs
-------
                                                   Figure 5-3
       Benthic Macroinvertebrate HQs for Direct Contact with Non-PAH Contaminants in Sediment
                       Baseline Ecological Risk Assessment for the Ogden Rally ar d Site
                                                  SELENIUM
1E+04 -
1E+03 -
s—\
5- 1E+02 -
-8
| 1E+01 -
(3 1E+00 -
1
1E-01 -
1E-02 -




•
• -

»0

21st St
Pond-
West



•
•
°°0

21st St
Pond-
East
o NDHQ • Detect HQ 	 HQ = 1





•
O
§

BVP
Pond
(ref)







Ogden
Reach A
(ref)


•


%

Ogden
Reach B







Ogden
Reach C





o
o

Weber
Reach A
(ref)




„

 1:
NDHQs> 1:
All HQs < 1:
Detect Samples:
All Samples:
Risk Category:
21st Street
Pond-
West
3
0
6
4
9
A
21st Street
Pond-
East
1
0
4
2
5
C
Buena
Ventura
Park Pond
0
0
4
1
4
C
Ogden
River -
Reach A
0
0
0
0
0
na
Ogden
River -
Reach B
1
0
4
1
5
C
Ogden
River -
Reach C
0
0
0
0
0
na
Weber
River -
Reach A
0
0
2
0
2
C
Weber
River -
Reach B
0
8
2
0
10
B
Weber
River -
Reach C
0
4
1
0
5
B
Weber
River -
Reach D
0
5
5
0
10
B
        A = Risk to the sub-population at this location are possible
        B = Risks to the sub-population at this location cannot be determined
        C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
        na = No data for this chemical in this location
Aquatic Risk_Sed non-PAH rev.xls: Figure 5-3
1/13/2003

-------
                                                    Figure 5-4
       Benthic Macroinvertebrate HQs for Direct Contact with Non-PAH Contaminants in Sediment
                       Baseline Ecological Risk Assessment for the Ogden RailyardSite
                                                AROCLOR-1260
1E+03 -
tt
O>
£ 1E+02 -
o 1E+01 -
£ 1E+00 -
1
1E-01 -
1E-02 -





&8

21st St
Pond-
West



o
• j
o

21st St
Pond-
East
o NDHQ • Detect HQ 	 HQ = 1





«

BVP
Pond
(ref)




&

Ogden
Reach A
(ref)


•
*
*•
0° *
0°

Ogden
Reach B



.
o

Ogden
Reach C




0

Weber
Reach A
(ref)





aSss

Weber
Reach B




08

Weber
Reach C




o

Weber
Reach D
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st Street
Pond-
West
0
0
11
2
11
C
21st Street
Pond-
East
3
1
1
3
5
A
Buena
Ventura
Park Pond
0
0
3
0
3
C
Ogden
River -
Reach A
0
0
10
0
10
C
Ogden
River -
Reach B
8
0
1
11
15
A
Ogden
River -
Reach C
2
0
2
3
4
A
Weber
River -
Reach A
0
0
2
0
2
C
Weber
River -
Reach B
0
0
10
0
10
C
Weber
River -
Reach C
0
0
5
0
5
C
Weber
River -
Reach D
0
0
15
0
15
C
        A = Risk to the sub-population at this location are possible
        B = Risks to the sub-population at this location cannot be determined
        C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
        na = No data for this chemical in this location
Aquatic Risk_Sed non-PAH rev.xls: Figure 5-4
1/13/2003

-------
                                                                  Figure 5-5
                                Benthic Macroinvertebrate HQs for Direct Contact with PAHs in Sediment
                                                        (Based on Non-SIM Analysis)
                                      Baseline Ecological Risk Assessment for the Ogden Railyard Site
                                                            BENZO[A]PYRENE

                                                  Based on the Sediment Effect Concentration (SEC)
1E+06 -
1E+05 -
1E+04 -
$ 1E+03 -
a 1E+02 -
•| 1E+01 -
g, 1E+00 -
1 1E~01 "
1 1E-°2 "
IE- 03 -
IE- 04 -
1E-05 -




O
8P° •
*J*





•
•
^
ft.




o ND HQ • Detect HQ ^— HQ = 1




o
O o







o
"" S






o fc








*
























•







•



21st St 21st St ' ' ' ' ' ' ' '
Pond - Pond - BVP Ogden Ogden Ogden Weber Weber Weber Weber
West East Pond Reach A Reach B Reach C Reach A Reach B Reach C Reach D
(ref) (ref) (ref)
Statistic
Detect HQs > 1 :
ND HQs > 1 :
All HQs < 1:
Detect Samples:
All Samples:
Risk Category:
2 1st Street
Pond-
West
1
10
10
10
21
B
2 1st Street
Pond-
East
10
0
0
10
10
A
Buena
Ventura
Park Pond
0
5
0
0
5
B
Ogden
River -
Reach A
0
1
5
2
6
C
Ogden
River -
Reach B
2
2
12
13
16
B
Ogden
River -
Reach C
0
1
3
2
4
B
Weber
River -
Reach A
0
0
0
0
0
na
Weber
River -
Reach B
0
0
8
0
8
C
Weber
River -
Reach C
0
0
4
1
4
C
Weber
River -
Reach D
0
0
5
1
5
C
                                               Based on the Equilibrium Partitioning Guideline (ESG)
o NDHQ • Detect HQ 	 HQ = 1


1E+05 -
1E+04 -
& 1E+03 -
B
$ 1E+02 -
.S 1E+01 -
o
§i 1E+00 -
"S 1E-01 -
| 1E-02 -
1E-03 -
1E-04 -
1E-05 -








0
•» i








*
*

•P
*











0
Oo











o
CD











O
* fL











0
o •

























CC0












ooo












ooo



21st St ' 21st St ' ' ' ' ' ' ' '
Pond - Pond - BVP Ogden Ogden Ogden Weber Weber Weber Weber
West East Pond Reach A Reach B Reach C Reach A Reach B Reach C Reach D
(ref) (ref) (ref)
Statistic
Detect HQs > 1 :
ND HQs > 1 :
All HQs < 1:
Detect Samples:
All Samples:
Risk Category:
21st Street
Pond-
West
0
0
21
10
21
C
2 1st Street
Pond-
East
0
0
8
10
10
C
Buena
Ventura
Park Pond
0
0
5
0
5
C
Ogden
River -
Reach A
0
0
6
2
6
C
Ogden
River -
Reach B
0
0
16
13
16
C
Ogden
River -
Reach C
0
0
4
2
4
C
Weber
River -
Reach A
0
0
0
0
0
na
Weber
River -
Reach B
0
0
8
0
8
C
Weber
River -
Reach C
0
0
4
1
4
C
Weber
River -
Reach D
0
0
5
1
5
C
                                      A = Risk to the sub-population at this location are possible
                                      B = Risks to the sub-population at this location cannot be determined
                                      C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                                      na = No data for this chemical in this location
Aquatic Risk_Sed PAHs wo SIM.xls: Figure 5-5
1/13/2003

-------
                                                                   Figure 5-6
                                 Benthic Macroinvertebrate HQs for Direct Contact with PAHs in Sediment
                                                            (Based on SIM Analysis)
                                       Baseline Ecological Risk Assessment for the Ogden Railyard Site

                                                             ACENAPHTHYLENE

                                                   Based on the Sediment Effect Concentration (SEC)
1E+03 -
1E+02 -
^
§ 1E+01 -
a
_g 1E+00 -
o
O* 1E-01 -
C3
§ 1E-02 -
1E-03 -
1E-04 -



'••
'•


o NDHQ • Detect HQ 	 HQ = 1

•







oo





o




o
0 •






0



21st St Pond - 21st St Pond - BVP Ogden Ogden Ogden
West East Pond Reach A Reach B Reach C
(ref) (ref)
Statistic
N Detect HQs > 1 :
NNDHQs>l:
NAllHQs 1 :
NNDHQs>l:
NAllHQs
-------
                                                  Figure 5-7
         Benthic Macroinvertebrate HQs for Direct Contact with PAHs in Sediment Porewater
                      Baseline Ecological Risk Assessment for the Ogden RailyardSite
                                             ACENAPHTHENE
o NDHQ • Detect HQ 	 HQ = 1
1 T7_|_n'? -r———^^
1E+02 -
&
^ 1E+01 -
I
.5 1E+00 -
O1 1E-01 -
•s
1 1E-02 -

1E-03 -
mt~\A





•



•


21st Street Pond -







*•
O


21st Street Pond -








o
"

Ogden River - Reach B








o


Ogden River - Reach C
East West
Statistic
Detect HQs > 1:
NDHQs>l:
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st Street
Pond-
East
0
0
2
2
2
C
21st Street
Pond-
West
0
0
o
J
2
o
J
C
Ogden
River -
Reach B
0
0
2
1
2
C
Ogden
River -
Reach C
0
0
1
0
1
C
                        A = Risk to the sub-population at this location are possible
                        B = Risks to the sub-population at this location cannot be determined
                        C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                        na = No data for this chemical in this location
Aquatic Risk_PW SIM only.xls:  Figure 5-7
1/13/2003

-------
                                                                        Figure 5-8
                                                        HQs for Fish Based on Fish Tissue Data

                                           Baseline Ecological Rish Assessment for the Ogden Railyard Site

                                                                         4,4'-DDD
1E+02 -
1E+01 -
§ 1E+00 -
o
I 1E-01 -
5 1E-02 -
•o
^
1 1E"03 "
1E-04 -
IE-OS -

%





-B V<



o NDHQ • Detect HQ 	 HQ = 1











Carcass Fillet Liver Whole
Body
21st Street Pond





Fillet
Buena Ventura
Park Pond











Fillet Whole
Body
Ogden PJver





Fillet
Weber
Paver
Statistic
Detect HQs > 1 :
NDHQs>l:
All HQs < 1 :
Detect Samples:
All Samples:
Risk Category:
21 st Street Pond
Carcass
2
0
20
12
22
C
Fillet
0
0
22
11
22
c
Liver
0
0
0
0
0
na
Whole
Body
6
0
1
7
7
A
Buena
Ventura
Park Pond
Fillet
0
0
0
0
0
na
Ogden River
Fillet
0
0
0
0
0
na
Whole
Body
0
0
0
0
0
na
Weber
River
Fillet
0
0
0
0
0
na
                                                                         4,4'-DDE
1E+02 -
1E+01 -
0 1E+00 -
1 1E-01 -
"5
a 1E-02 -
1 1E-03 -
1E-04 -
1E-05 -



.
*
•f




Carcass
V"
^f





Fillet
o ND HQ • Detect HQ ^— HQ = 1















Liver Whole
Body
21st Street Pond








Fillet
Buenaventura
Park Pond















Fillet Whole
Body
Ogden River








Fillet
Weber
River
Statistic
Detect HQs > 1 :
NDHQs>l:
All HQs < 1 :
Detect Samples:
All Samples:
Risk Category:
21 st Street Pond
Carcass
15
0
7
22
22
A
Fillet
9
0
13
22
22
A
Liver
0
0
0
0
0
na
Whole
Body
7
0
0
7
7
A
Buena
Ventura
Park Pond
Fillet
0
0
0
0
0
na
Ogden River
Fillet
0
0
0
0
0
na
Whole
Body
0
0
0
0
0
na
Weber
River
Fillet
0
0
0
0
0
na
                                          A = Risk to the sub-population at this location are possible
                                          B = Risks to the sub-population at this location cannot be determined
                                          C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                                          na = No data for this chemical in this location
Aquatic Risk_Fish.xls: Figure 5-8
1/13/2003

-------
s

San

ite-Speciflc Study

upling and Analysis




Biological Condition
Metric
1. Taxa Richness*8'
2. Hilsenhoff Biotic Index (modified)*'
3. Ratio of Scrapers/Filterers+Collectors(!1'c)
4. Ratio of EPT and Chironomid Abundances**
5. % Contribution of Dominant Taxon(tl)
6. EPTIndexw
7. Community Loss Index*'-1
8. Ratio of Shredders/Total(a'c)
(a) Score is a ratio of a study site to reference site x 100.
(b) Score is a ratio of reference site to a study site x 100.
6
>80%
>85%
>50%
>75%
<20%
>90%
<0.5
>50%

4
60-80%
70-85%
35-50%
50-75%
20-30%
80-90%
0.5-1.5
35-50%




Scoring Criteria
2
40-60%
50-70%
20-35%
25-50%
30-40%
70-80%
1.5-4.0
20-35%





0
<40%
<50%
<20%
<25%
>40%
<70%
>4.0
<20%

(c) Determination of Functional Feeding Group is independent of taxonomic grouping.
(d) Scoring criteria evaluate actual percent contribution, not percent comparability
to the reference station.
(e) Range of values obtained. A comparison to the reference station is incorporated in these indices.
                                                        BIOASSESSMENT
                        Comp.
                        to Ref.
                       Score (a)
               Biological Condition
                    Category
              Not impaired
54-79%        Slightly impaired




21-50%        Moderately impaired

<17%         Severely impaired
                                                                              Attributes
                                                                Comparable to the best situation to be expected
                                                                within an ecoregion. Balanced trophic
                                                                structure. Optimum community structure
                                                                (composition and dominance) for stream size
                                                                and habitat quality.
                                                                Community structure less than expected.
                                                                Composition (species richness) lower than
                                                                expected due to loss of some intolerant forms.
                                                                Percent contribution of tolerant forms
                                                                increases.
                                                                Fewer species due to loss of more tolerant
                                                                forms. Reduction in EPT index.
                                                                Few Species present. If high densities of
                                                                organisms, then dominated by one or two taxa.
                       (a) Percentage values obtained that are intermediate to the above ranges will require
                       subjective judgement as to the correct placement. Use of the habitat assessment and
                       physiochemical data may be necessary to aid in the decision process.
                                                       Recommendations
    EPT = Ephemeroptera, Plecoptera, Trichoptera
    Source: USEPA, 1989
                                                         Figure 5-9
                    Flowchart of Approach for Rapid Bioassessment Protocol (RBP) III
                        Baseline Ecological Risk Assessment for the Ogden Kailyard Site
Fig 5-9 RBP Flowchart

-------
                                                                       Figure 6-1
                                           Terrestrial Receptor HQs for Direct Contact with Surface Soil

                                          Baseline Ecological Risk Assessment for the Ogden Roily ard Site

                                                                     ALUMINUM


} 1E+02 •
1 1E+01-
1
^ 1E+00 -
rt
1E-01



• «••



21st
St Pond
o NDHQ

•



WE
Reach A
(refl
• Detect HQ ^—

» •
*'\



WE
Reach B
HQ = 1

•.*
.*



WE
Reach C


?V



WB
Reach D
Statistic
Detect HQs > 1 :
ND HQs > 1 :
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st Street
Pond
8
0
0
8
8
A
Weber
River -
Reach A
2
0
0
2
2
A
Weber
River -
Reach B
11
0
0
11
11
A
Weber
River -
Reach C
11
0
0
11
11
A
Weber
River -
Reach D
12
0
0
12
12
A
                                                                   AROCLOR-1260


K 1E+01 -
B
1
U 1E+00 -
0
1
g 1E-01 -




*
O

21st
St Pond
o NDHQ





WB
Reach A
(ref)
• Detect HQ ^—

•
oo o
0 <**"

WB
Reach B
•HQ= 1


0


WB
Reach C



o o


WB
Reach D
Statistic
Detect HQs > 1 :
ND HQs > 1 :
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21 st Street
Pond
5
0
2
5
7
A
Weber
River -
Reach A
0
0
1
0
1
C
Weber
River -
Reach B
1
3
4
1
8
B
Weber
River -
Reach C
0
1
1
0
2
B
Weber
River -
Reach D
0
2
2
0
4
B
                                    A = Risk to the sub-population at this location are possible
                                    B = Risks to the sub-population at this location cannot be determined
                                    C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                                    na = No data for this chemical in this location
Terrestrial Risk_Soil.xls: Figure 6-1
1/13/2003

-------
This page intentionally left blank to facilitate double-sided printing.

-------
                                  Table 3-1. Summary of Studies Performed at the Site
Phase
1
2
Study
Safety-Kleen
1998
USEPA/ERTC
2001
Medium
Surface Soil
Sediment
Surface water
Surface Soil
Sediment
Surface Water
Fish Tissue
Number and Location
13 samples from Weber River riparian zone
2 samples from 21st Street Pond
15 samples from Weber River
1 sample from Ogden River
3 samples from 21st St Pond
1 sample from Ogden River
14 samples from Weber River
1 sample from 21st Street Pond
9 samples from Weber River riparian zone
3 samples from 21st Street Pond
(one measured directly at a bank seep)
1 sample from 33rd Street Slough
2 samples from AOI 10 Drainage Ditch
1 sample from Burch Creek
1 sample from Buena Ventura Park Pond
1 sample from Ogden River
1 sample from Roundhouse Drainage Ditch
1 sample from Strongs Creek
10 samples from Weber River
2 samples from 21st Street Pond
(one measured directly at a bank seep)
1 sample 33rd Street Slough
2 samples from Burch Creek
1 sample from Buena Ventura Park Pond
1 sample from Ogden River
1 sample from Roundhouse Drainage Ditch
3 samples from Strongs Creek
12 samples from Weber River
56 samples from 21st Street Pond
Analytes
Metals, Pesticides, PAH, PCB (as Aroclor),
TPH, SVOC, VOC
Metals, Pesticides, PAH, PCB (as Aroclor),
SVOC, VOC
Metals, Pesticides, PAH, PCB (as Aroclor),
TPH, SVOC, VOC
VOC, SVOC, Pesticides, PCB (as Aroclor),
Metals
VOC, SVOC, Pesticides, PCB (as Aroclor),
Metals, TOC, TPH
VOC, SVOC, Metals, Hardness, TSS, TOC,
TPH
SVOC, PAH, Pesticides, PCB (as Aroclor)
Table 3-l.wpd
8/21/02
Page Iof2

-------
                                  Table 3-1.  Summary of Studies Performed at the Site
Phase
2 (cont.)
3
Study
Forrester Group
(various reports
1998-2001)
USEPA 2002
Medium
Surface Soil
Sediment
Surface Water
Sediment
Sediment
Porewater
Soil
Fish Tissue
Benthic Tissue
Number and Location
9 samples from 21st St Pond
40 samples from Weber River
22 samples from 21st St Pond
3 samples from Buena Ventura Park
17 samples from Ogden River
10 samples from Weber River
19 samples from 21st St Pond
3 samples from Buena Ventura Park
6 samples from Ogden River
23 samples from Weber River
10 samples from 21st Street Pond
2 samples from Buena Ventura Park Pond
14 samples from Ogden River
5 sample from Pioneer Power Plant Aqueduct
5 samples from Weber River
2 samples from Wall Avenue Storm Drain
5 samples from 21st Street Pond
3 samples from Ogden River
6 samples from 21st Street Pond
(in abandoned meanders around pond)
6 samples from 21st Street Pond
2 samples from Buena Ventura Park Pond
12 samples from Ogden River
2 samples from Weber River
1 samples from Pioneer Power Plant Aqueduct
1 samples from Buena Ventura Park Pond
3 samples from Ogden River
Analytes
Metals, PAH, SVOC, VOC
Metals, PAH, PCB, SVOC, VOC
Metals, PAH, PCB, SVOC, VOC
SVOC, PAHs (analyzed via both BNA and
BNA SIM), Pesticides, PCB (as Aroclor), PCB
(as congeners)
SVOC, VOC, PAHs
SVOC, VOC, PAHs, Pesticides, PCB (as
Aroclor)
PAHs, PCB and Dioxins/Furans (as congeners)
PCB (as congeners)
Table 3-l.wpd
8/21/02
Page 2 of 2

-------
                                                 Table 4-1
                          Summary of Assessment and Measurement Endpoints

                     Baseline Ecological Risk Assessment for the Ogden RailyardSite
    Receptor
         Assessment Endpoint
              Measurement Endpoint
                                                        Comparison of sampling location-specific chemical
                                                        concentrations in surface water to National Ambient
                                                        Water Quality Criteria (AWQC).
                                                        Comparison of sampling location-specific chemical
                                                        concentrations in sediment to benthic macroinvertebrate
                                                        toxicity benchmarks.
     Aquatic
   Community
Protection of aquatic invertebrates and fish
from adverse effects related to exposure to
chemicals in surface water and sediment.
Comparison of sampling location-specific chemical
concentrations in sediment porewater to benthic
macroinvertebrate toxicity benchmarks.
                                                        Evaluate the toxicity of site sediment to Chironomus
                                                        tenons and Hyalella azteca (growth and survival)
                                                        through laboratory testing.
                                                        Benthic invertebrate community structure, including
                                                        density and diversity (taxa richness) of benthic
                                                        organisms.
                                                        Comparison of chemical concentrations in fish tissue to
                                                        maximum allowable tissue concentration (MATC)
                                                        toxicity benchmarks for fish.
    Terrestrial
   Community
Protection of terrestrial plants and
terrestrial soil invertebrates from adverse
effects related to exposure to chemicals in
surface soil.
Comparison of sampling location-specific chemical
concentrations in soil to toxicity screening benchmarks
for terrestrial plants and terrestrial soil invertebrates.
    Wildlife
   Community
Protection of wildlife from adverse effects
to growth, reproduction, or survival
related to exposure to chemicals in surface
water, sediment, soil, benthic
macroinvertebrates, and fish.
Comparison of the reach-specific chemical doses
estimated from exposure point concentrations (EPCs) in
surface water, sediment, soil, and aquatic food items to
toxicity reference values (TRVs) for wildlife.
Table 4-1 A&M Endpoints
2/13/2003

-------
                           Table 5-1.  Summary of Risk Category Assignments for Surface Water
Based on Acute Toxicity Benchmark
Category
o
1
§
o
ed
!
COPC
Aluminum
Barium
Cadmium
Iron
Lead
Nickel
Selenium
Silver
Zinc
Acenaphthene
Anthracene
Benzo[a]anthracene
Benzo[a]pyrene
Fluorene
Naphthalene
Pyrene
bis(2-Ethylhexyl)phthalate
Acetone
Carbon Disulfide
Dichloromethane
Ethylbenzene
2 1st Street
Pond-
West
C
C
C
2 1st Street
Pond-
East
C
C
C
Buena
Ventura
Park Pond
A
C
C
Ogden
River -
Reach A
na
na
na
Ogden
River -
Reach B
C
C
C
Ogden
River -
Reach C
na
na
na
Weber
River -
Reach A
C
C
C
Weber
River -
Reach B
C
C
C
Weber
River -
Reach C
C
C
C
Weber
River -
Reach D
C
C
C
No Acute Benchmark Available
C
C
C
C
C
C
C
B
B
C
C
C
C
C
C
C
C
C
B
B
C
C
C
C
C
C
C
C
C
B
B
C
C
na
na
na
na
na
na
na
na
na
na
na
C
C
C
C
C
C
C
B
B
C
C
na
na
na
na
na
na
na
na
na
na
na
C
C
C
C
C
C
C
B
B
C
C
C
C
C
C
C
C
C
B
B
C
C
C
C
C
C
C
C
C
B
B
C
C
C
C
C
C
C
C
C
B
B
C
C
No Acute Benchmark Available
C
C
C
C
C
C
na
C
C
C
C
C
C
C
C
na
na
na
na
na
C
C
C
C
C
na
na
na
na
na
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
Based on Chronic Toxicity Benchmark
Category
Inorganics
tri
_o
op
O
COPC
Aluminum
Barium
Cadmium
Iron
Lead
Nickel
Selenium
Silver
Zinc
Acenaphthene
Anthracene
Benzo[a]anthracene
Benzo[a]pyrene
Fluorene
Naphthalene
Pyrene
bis(2-Ethylhexyl)phthalate
Acetone
Carbon Disulfide
Dichloromethane
Ethylbenzene
2 1st Street
Pond-
West
A
A
A
C
C
C
C
2 1st Street
Pond-
East
C
A
A
C
C
C
C
Buena
Ventura
Park Pond
A
A
A
A
A
C
C
Ogden
River -
Reach A
na
na
na
na
na
na
na
Ogden
River -
Reach B
A
A
A
C
C
C
C
Ogden
River -
Reach C
na
na
na
na
na
na
na
Weber
River -
Reach A
A
A
B
C
C
C
B
Weber
River -
Reach B
A
A
B
C
C
C
B
Weber
River -
Reach C
A
A
B
C
C
C
B
Weber
River -
Reach D
B
A
B
C
C
C
B
No Chronic Benchmark Available
C
C
C
B
B
C
C
B
C
C
B
C
C
C
C
C
A
A
C
A
A
C
na
C
C
C
C
C
B
B
B
C
C
B
B
C
C
C
C
na
na
na
na
na
na
na
na
na
na
na
na
na
C
C
B
B
B
C
C
B
B
C
C
C
C
na
na
na
na
na
na
na
na
na
na
na
na
na
C
C
B
B
B
C
C
B
B
C
C
C
C
C
C
B
B
B
C
C
B
B
C
B
C
C
C
C
B
B
B
C
C
B
B
C
B
C
C
C
C
B
B
B
C
C
B
B
C
B
C
C
          A = Risk to the sub-population at this location are possible
          B = Risks to the sub-population at this location cannot be determined
          C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
          na = No data for this chemical in this location
 Aquatic Risk_SW.xls: Risk Summary
 1/13/2003

-------
                     Table 5-2. Summary of Risk Category Assignments for Non-PAHs in Sediment
Category
Inorganics
_0
rt
M
6
COPC
Copper
Iron
Lead
Mercury
Selenium
Silver
Zinc
4,4'-DDE
4,4'-DDT
Dieldrin
Aroclor-1254
Aroclor-1260
Biphenyl
bis(2-Ethylhexyl)phthalate
Dibenzofuran
Phenol
Acetone
Acrolein
Acrylonitrile
Benzene
Bromomethane
Carbon disulfide
Ethylbenzene
Toluene
Xylenes (Total)
Xylenes-o
Xylenes-p,m
21st Street
Pond-
West
C
C
C
C
A
C
C
A
C
B
C
C
C
B
C
B
C
B
B
C
C
B
C
C
C
A
A
21st Street
Pond-
East
C
C
C
C
C
C
C
C
C
B
C
A
A
B
B
B
C
B
C
C
C
B
C
C
A
na
na
Buena
Ventura
Park Pond
C
C
A
A
C
A
A
C
C
B
C
C
B
B
B
B
C
B
B
C
C
B
C
C
C
C
C
Ogden
River -
Reach A
na
na
na
na
na
na
na
C
C
C
C
C
B
B
B
B
na
na
na
na
na
na
na
na
na
na
na
Ogden
River -
Reach B
C
C
C
C
C
C
C
B
C
B
B
A
B
B
B
B
C
B
B
C
C
B
C
C
C
C
C
Ogden
River -
Reach C
na
na
na
na
na
na
na
C
C
C
C
A
B
A
B
B
na
na
na
na
na
na
na
na
na
na
na
Weber
River -
Reach A
C
C
C
C
C
C
C
B
C
B
C
C
na
A
B
B
C
B
C
C
C
A
C
A
C
C
C
Weber
River -
Reach B
C
C
C
C
B
C
C
B
B
B
C
C
na
C
C
C
C
B
B
C
C
C
C
C
C
C
C
Weber
River -
Reach C
C
C
C
C
B
C
C
B
B
B
C
C
na
C
C
C
C
B
B
C
C
C
C
C
C
C
C
Weber
River -
Reach D
C
C
C
C
B
C
C
B
B
B
C
C
na
A
B
B
C
B
B
C
C
C
C
A
C
C
C
          A = Risk to the sub-population at this location are possible
          B = Risks to the sub-population at this location cannot be determined
          C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
          na = No data for this chemical in this location
Aquatic Risk_Sed non-PAH rev.xls:  Risk Summary
1/13/2003

-------
                       Table 5-3. Summary of Risk Category Assignments for PAHs in Sediment
                                                  Based on Non-SIM Data
  Based on the SEC
Category
a

-------
            Table 5-4.  Summary of Risk Category Assignments for PAHs in Sediment
                                           Based on SIM Data
Based on SEC Benchmarks
Category
«
CM
COPC
1 -Methylnaphthalene
2-Methylnaphthalene
Acenaphthene
Acenaphthylene
Anthracene
B enzo [ a] anthracene
Benzo[a]pyrene
Benzo [b] fluoranthene
Benzo[g,h,i]perylene
Benzo [k] fluoranthene
Chrysene
Dibenz [a,h] anthracene
Fluoranthene
Fluorene
Indeno[ 1 ,2,3-c,d]pyrene
Naphthalene
Phenanthrene
Pyrene
21st Street
Pond - West
na
C
A
A
C
C
C
A
C
A
C
C
C
C
C
C
C
C
21st Street
Pond-
East
na
A
A
A
A
A
A
A
A
A
A
A
A
A
A
C
A
A
Buena
Ventura
Park Pond
na
C
B
B
C
C
C
A
C
C
C
C
C
C
C
C
C
C
Ogden River
Reach A
na
B
B
B
C
C
C
A
C
A
C
B
C
C
C
C
C
C
Ogden River
Reach B
na
B
B
A
B
A
A
A
C
A
A
A
C
B
A
C
C
A
Ogden River
Reach C
na
B
A
B
C
C
C
A
C
A
C
C
C
C
C
C
A
A
Based on ESG Benchmarks
Category
M
CM
COPC
1 -Methylnaphthalene
2-Methylnaphthalene
Acenaphthene
Acenaphthylene
Anthracene
B enzo [ a] anthracene
Benzo[a]pyrene
Benzo [b] fluoranthene
Benzo[g,h,i]perylene
Benzo [k] fluoranthene
Chrysene
Dibenz [a,h] anthracene
Fluoranthene
Fluorene
Indenof 1 ,2,3-c,d]pyrene
Naphthalene
Phenanthrene
Pyrene
21st Street
Pond-
West
na
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
21st Street
Pond-
East
na
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
Buena
Ventura
Park Pond
na
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
Ogden River
Reach A
na
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
Ogden River
Reach B
na
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
Ogden River
Reach C
na
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
           A = Risk to the sub-population at this location are possible
           B = Risks to the sub-population at this location cannot be determined
           C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
           na = No data for this chemical in this location
Aquatic Risk_Sed PAHs SIM only.xls: Risk Summary
1/13/2003

-------
       Table 5-5.  Summary of Risk Category Assignments for PAHs in Porewater
                                   (Based on SIM Analysis)
Category
w
tn
<;
PH
COPC
2-Methylnaphthalene
Acenaphthene
Acenaphthylene
Anthracene
Benzo [a] anthracene
Benzo[a]pyrene
Benzo [b]fluoranthene
Benzo [g,h,i]perylene
Benzo [k]fluoranthene
Chrysene
Dibenz [a,h] anthracene
Fluoranthene
Fluorene
Indeno [1 ,2,3 -c,d]pyrene
Naphthalene
Phenanthrene
Pyrene
2 1st Street Pond -
East
C
C
C
C
C
C
C
C
C
C
B
C
C
B
C
C
C
2 1st Street Pond -
West
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
Ogden River -
Reach B
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
Ogden River -
Reach C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
A = Risk to the sub-population at this location are possible
B = Risks to the sub-population at this location cannot be determined
C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
na = No data for this chemical in this location
Aquatic Risk_PW SIM only.xls:  Risk Summary
1/13/2003

-------
                             Table 5-6.  Summary of Risk Category Assignments for Fish Based on Fish Tissue Data
Category
PAH
PCB
PCB Congener
Pesticide
SVOC
COPC
Acenaphthene
Aroclor-1260
PCB-105
PCB-114
PCB-118
PCB-123
PCB-126
PCB-156
PCB-157
PCB-167
PCB-189
PCB-77
4,4'-DDD
4,4'-DDE
4,4'-DDT
Dieldrin
gamma-Chlordane
4-Methylphenol (p-Cresol)
bis(2-Chloroethoxy)methane
bis(2-Ethylhexyl)phthalate
Dibutylphthalate
Diethylphthalate
Phenol
2 1st Street Pond
Carcass Fillet Liver Whole Body
Buena Ventura
Park Pond
Fillet
Ogden River
Fillet
Whole Body
Weber River
Fillet
No TRV Available
C C na C
na
na
na
na
No TRV Available
No TRV Available
No TRV Available
No TRV Available
na C na na
C
C
C
C
No TRV Available
No TRV Available
No TRV Available
No TRV Available
No TRV Available
C C na A
A A na A
C C na C
C B na C
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
No TRV Available
No TRV Available
No TRV Available
No TRV Available
No TRV Available
No TRV Available
B B C C
na
na
na
na
                  A = Risk to the sub-population at this location are possible
                  B = Risks to the sub-population at this location cannot be determined
                  C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                  na = No data for this chemical in this location
Aquatic Risk_Fish.xls: Risk Summary
1/13/2003

-------
                                                                   Table 5-7
                                             Summary of the Site-Specific Sediment Toxicity Tests
                                        Baseline Ecological Risk Assessment for the Ogden RailyardSite
                  Conducted during the Phase 2 Investigation (USEPA/ERTC 2001)
Location
Location Description
Station
Mean Survival
Mean Dry
Weight (mg per
organism)
10-day Subchronic Test with Chironomus tentans
Lab Control
Weber River
-
Reach A (ref)
Reach B
Reach D
-
WR09A
WR011A
WR012A
WR014A
WR019A
WR021A
WR022A
WR024A
WR025A
WR028A
93% (7%)
89% (12%)
90% (9%)
93% (9%)
81% (10%)
96% (5%)
89% (16%)
94% (7%)
84% (11%)
76% (16%) a'b
91% (8%)
0.99(0.08)
2.86(0.11)
3.51(0.59)
2 (0.04)
2.97 (0.20)
2.28 (0.32)
1.91(0.37)
1.99(0.15)
3.47(1.13)
2.05 (0.27)
2.37(0.26)
14-day Subchronic Test with Hyaletta azteca
Lab Control
Weber River
-
Reach A (ref)
Reach B
Reach D
-
WR09A
WR011A
WR012A
WR014A
WR019A
WR021A
WR022A
WR024A
WR025A
WR028A
93% (12%)
96% (11%)
100% (0%)
99% (4%)
95% (9%)
91% (11%)
100% (0%)
99% (4%)
99% (4%)
74% (29%) a
96% (5%)
0.15 (0.03)
0.30(0.03)
0.24(0.03)
0.40 (0.04)
0.29(0.09)
0.35 (0.07)
0.30(0.03)
0.30(0.03)
0.33 (0.06)
0.25 (0.07)
0.32(0.03)
                  Conducted during the Phase 3 Investigation (USEPA 2002)
Location
Location Description
Station
Mean Survival
Mean Dry
Weight (mg per
organism)
14-day Subchronic Test with Hyalella azteca
Lab Control
Buena Ventura Park
Pond
2 1st Street Pond
-
south end of pond (ref)
north end of pond (ref)
inside fenced area
just outside fenced area
northwest of fenced area
-
BVPP-08A*
BVPP-08B
21SP-04P
21SP-04R
21SP-04T
99% (4%)
99% (4%)
99% (4%)
93% (5%)
96% (7%)
99% (4%)
0.36 (0.04)
0.37(0.04)
0.38(0.06)
0.37(0.05)
0.54 (0.04)
0.42 (0.06)
                  a Statistically different (p < 0.05) compared to the laboratory control
                  b Statistically different (p < 0.05) compared to reference station WR09A

                  Standard deviation shown in parentheses.
                  Eight replicates per station, 10 organisms per replicate.

                  * Test organisms for one replicate (D) were inadvertently not added to the test vessel at initiation.  This replicate was
                  excluded from the mean survival and growth results and statistical analysis.
sed tox results.xls
1/13/2003

-------
                                                  Table 5-8
                   Results of the Benthic Macroinvertebrate Community Structure Assessment
                         Baseline Ecological Risk Assessment for the Ogden Railyard Site
 Conducted During the Phase 2 Investigation
Community Stucture Metric
Mean Number of Organisms per Replicate
Number of Taxa
Total Scrapers
Total Filterers
Mean Scrapers : Filterers
EPT Abundance
Chironomid Abundance
Mean EPT : Chironomid
Mean % Contribution Dominant Taxon per Replicate
EPT Index
Mean H1 Diversity
Mean Hillsenhoff s Biotic Index
Community Loss Index (Relative to WR09)
Biological Condition Score (Relative to WR09)
Biological Condition Category (Relative to WR09)
Weber River
Reach A
WR09
(ref)
286
23
152
86
1.8
659
115
5.7
60
14
1.6
4.8
NA
NA
NA
WR011
244
20
105
60
1.8
560
79
7.1
56
11
1.6
4.9
0.3
89
Not
Impacted
Reach B
WR012
233
24
285
39
7.3
382
267
1.4
47
14
1.7
5.2
0.2
83
Not
Impacted
WR014
142
20
149
138
0.7
279
80
3.5
25
12
2.2
4.7
0.25
94
Not
Impacted
Reach D
WR019
160
18
149
54
2.8
397
56
7.1
32
12
2
4.4
0.44
94
Not
Impacted
WR024
210
22
294
96
3.1
301
251
1.2
41
13
1.9
5.2
0.27
83
Not
Impacted
WR028
212
25
210
53
4
326
170
1.9
29
14
2.2
5.3
0.2
100
Not
Impacted
 Conducted During the Phase 3 Investigation
Community Stucture Metric
Total Number of Organisms
Number of Taxa
Scrapers
Filterers
Scrapers : Filterers
Shredders
EPT Abundance
Chironomid Abundance
EPT : Chironomid
% Contribution Dominant Taxon
EPT Index
H1 Diversity
Hillsenhoff s Biotic Index
21st Street Pond
West
40
173
15
96
0
-
0
2
8
0.3
28
1
2.0
7.4
East,
inside
fence
4R
42
9
9
0
-
0
3
10
0.3
29
1
1.9
7.4
East,
outside
fence
4T
90
8
79
0
-
0
0
2
0
43
0
1.5
6.8
Buena Ventura
Park Pond (ref)
8A
93
6
2
0
-
0
14
52
0.3
56
2
1.3
6.0
8B
94
7
10
0
-
0
15
50
0.3
53
1
1.4
6.5
Ogden
River -
Reach C
5C
1420
15
769
131
5.9
3
169
200
0.8
49
3
1.7
6.9
Weber
River -
Reach D
14C
173
11
120
0
-
0
0
2
0
28
0
1.8
6.7
BMI Community Assessment
2/13/2003

-------
                Table 6-1. Summary of Risk Category Assignments for Exposure of
                            Terrestrial Plants and Invertebrates to Soil
COPC
Aluminum
Antimony
Arsenic
Barium
Cadmium
Chromium
Copper
Iron
Lead
Manganese
Mercury
Selenium
Silver
Vanadium
Zinc
Aroclor-1260
Tetrachloroethene
2 1st Street
Pond
A
C
C
C
C
A
C
A
A
A
C
C
C
A
C
A
B
Weber River -
Reach A
A
A
A
C
A
A
A
A
A
A
A
C
A
A
A
C
B
Weber River -
Reach B
A
C
C
C
C
A
C
A
A
A
A
B
C
A
A
B
B
Weber River -
Reach C
A
C
C
C
C
A
C
A
C
A
A
B
C
A
A
B
B
Weber River -
Reach D
A
C
C
C
C
A
A
A
A
A
C
C
C
A
A
B
B
 A = Risk to the sub-population at this location are possible
 B = Risks to the sub-population at this location cannot be determined
 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
 na = No data for this chemical in this location
Terrestrial Risk Soil.xls

-------
                                                             Table 6-2
           Comparison of Background Concentrations of Trace Elements to Measured Site and Benchmark Concentrations in Soil

                                    Baseline Ecological Risk Assessment for the Ogden RailyardSite
COPC
Aluminum
Arsenic
Barium
Chromium
Copper
Iron
Mercury
Manganese
Lead
Antimony
Selenium
Vanadium
Zinc
Utah
Background*
Range (mg/kg)
15,000 - 100,000
1.5-48
150-1,500
15-150
7- 100
7,000 - 100,000
0.01 -4.6
100-1,000
5-700
1- 1.4
0.1- 1.5
20 - 300
20 - 2,000
Toxicity
Benchmark
(mg/kg)
50
10
160
0.40
36
200
0.10
100
50
3.0
0.70
2.0
50
Average Measured Site Concentration (mg/kg)
2 1st Street
Pond
7,358
5.7
86
12
24
9,729
0.05
240
68
0.97
0.96
16
60
Weber River -
Reach A
9,745
13
145
15
48
11,965
1.40
413
512
4.55
0.23
19
546
Weber Pviver -
Reach B
5,519
3.3
95
9
22
7,934
0.12
246
72
1.59
1.28
12
114
Weber River -
Reach C
4,906
4.7
91
8
17
6,825
0.18
212
86
0.60
0.97
11
90
Weber River -
Reach D
5,942
3.3
114
10
33
8,162
0.10
199
72
1.63
0.57
16
105
  Utah background concentrations reported by Shacklette and Boerngen (1984) (N = 47).
Bkg Soil Conc_Inorganics: Comparisons
2/13/2003

-------
                                                                               Table 7-1
                                                         Exposure Factors for Representative Wildlife Species

                                                    Baseline Ecological Risk Assessment for the Ogden Rally ard Site


Class

Avian






Type
Aquatic
Piscivore
Terrestial
Omnivore

Insectivore
Terrestrial
Insectivore
Semi-Aquatic
Piscivore


Receptor
Belted Kingfisher
American Robin

Mallard Duck
Masked Shrew
Mink


Genus species
Ceryle alcyon
Turdus migratorius

Anas platyrhynchos
Sorex cinereus
Mustela vison

Body
Weight
(kg wet
weight)
0.147
0.081

1.13
0.0053
0.556
Food

Ingestion
Rate
(kg wet
weight/day)
0.0735
0.078

0.316
0.009
0.089

Water
Ingestion
Rate
(L/day)
0.016
0.011

0.064
0.001
0.058
Sediment

Ingestion
Rate
(kg dry
weight/day)
0.0004
NA

0.0015
NA
0.0002
Soil

Ingestion
Rate
(kg dry
weight/day)
NA
0.0012

NA
0.0004
NA


Home Range Size
1.5 km linear
length of shoreline
0.48 hectares

435 hectares
0.39 hectares
2 km linear
length of shoreline


Assumed Dietary
Fraction of Food Items
100% fish
NA; No data available for
terrestrial food items

100% BMI
NA; No data available for
terrestrial food items
100% fish
  NA = Not applicable
  All dietary fractions are expressed as percent wet weight
  See Appendix B for detailed information and sources.
Exposure Factors.xls: Factor Summary
1/14/2003

-------
                                                                    Table 7-2a
                                          Summary of Total Hazard Index (HI) Across All Exposure Pathways


                                                             BELTED KINGFISHER
Type
Inorganics
Pesticides
PAHs
PCBs
SVOCs
COPC
Aluminum
Antimony
Arsenic
Barium
Cadmium
Chromium
Copper
Lead
Manganese
Mercury
Selenium
Thallium
Vanadium
Zinc
4,4'-DDE
4,4'-DDD
4,4'-DDT
Benzo[a]pyrene
Aroclor-1254
Aroclor-1260
bis(2-Ethylhexyl)phthalate
Dibutylphthalate
Reach
Buena
Ventura
Park Pond
(ref)
1E-01
—
2E-03
5E-02
-
2E-02
-
4E-02
4E-04
5E-02
1E-03
—
2E-03
2E-02
1E-03
—
9E-04
—
2E-04
2E-04
2E-03
2E-03
2 1st Street
Pond
1E-01
—
3E-03
2E-02
-
2E-02
-
1E-02
9E-04
2E-02
3E-03
—
2E-03
6E-03
3E+01
1E-01
1E-01
—
3E-04
1E+00
3E-01
1E+00
Ogden River
Reach A
(ref)
-
—
-
—
-
—
-
—
-
—
-
—
-
—
7E-04
—
7E-04
—
2E-04
1E-04
2E-03
7E-03
Reach B
6E-02
—
2E-03
2E-02
-
1E-02
-
1E-02
6E-04
9E-03
4E-03
—
1E-03
4E-03
1E-03
—
3E-03
—
1E-03
4E-02
5E-04
6E-03
Reach C
-
—
-
—
-
—
-
—
-
—
-
—
-
—
5E-04
—
4E-03
—
2E-04
1E-03
6E-04
2E-03
Weber River
Reach A
(ref)
1E-01
—
1E-03
2E-02
-
1E-02
-
2E-02
5E-04
3E-02
3E-04
—
1E-03
8E-03
1E-03
—
1E-03
—
3E-04
3E-04
4E-03
1E-02
Reach B
7E-02
—
2E-03
1E-02
-
7E-03
-
1E-02
4E-04
1E-02
1E-03
—
1E-03
7E-03
2E-03
—
2E-03
—
2E-04
2E-04
6E-04
3E-03
Reach C
1E-01
—
3E-03
2E-02
-
1E-02
-
2E-02
6E-04
2E-02
1E-03
—
1E-03
2E-02
4E-03
—
2E-03
—
2E-04
2E-04
2E-03
3E-03
Reach D
7E-02
—
2E-03
1E-02
-
3E-02
-
2E-02
4E-04
2E-02
9E-04
—
1E-03
2E-02
1E-03
—
1E-03
—
2E-04
2E-04
2E-03
8E-04
       — = no data available for this COPC at this reach
Wildlife HQ Template Total His
2/13/2003

-------
                                                                     Table 7-2b
                                          Summary of Total Hazard Index (HI) Across All Exposure Pathways


                                                                AMERICAN ROBIN
Type
Inorganics
Pesticides
PAHs
PCBs
SVOCs
COPC
Aluminum
Antimony
Arsenic
Barium
Cadmium
Chromium
Copper
Lead
Manganese
Mercury
Selenium
Thallium
Vanadium
Zinc
4,4'-DDE
4,4'-DDD
4,4'-DDT
Benzo[a]pyrene
Aroclor-1254
Aroclor-1260
bis(2-Ethylhexyl)phthalate
Dibutylphthalate
Reach
Buena
Ventura
Park Pond
(ref)
-
-
-
-
-
-
-
-
-
—
-
-
-
-
-
—
-
-
-
—
-
--
2 1st Street
Pond
5E-01
—
3E-02
8E-02
5E-03
1E-01
1E-02
9E-01
2E-03
2E-03
3E-02
—
1E-02
3E-02
-
—
3E-02
—
-
1E-02
9E-03
1E-02
Ogden River
Reach A
(ref)
-
—
-
-
-
-
-
-
-
-
-
-
-
-
-
—
-
-
-
-
-
--
Reach B
-
—
-
—
-
—
-
—
-
—
-
—
-
—
-
—
-
—
-
—
-
--
Reach C
-
—
-
-
-
-
-
-
-
-
-
-
-
-
-
—
-
—
-
-
-
--
Weber River
Reach A
(ref)
8E-01
—
8E-02
1E-01
2E-02
1E-01
2E-02
4E+00
4E-03
8E-02
6E-03
—
1E-02
3E-01
-
—
3E-03
—
-
7E-04
2E-03
4E-03
Reach B
4E-01
—
1E-02
6E-02
4E-03
7E-02
9E-03
5E-01
2E-03
5E-03
3E-02
—
8E-03
5E-02
-
—
7E-03
—
-
4E-03
2E-03
8E-03
Reach C
4E-01
—
3E-02
6E-02
3E-03
6E-02
7E-03
6E-01
2E-03
7E-03
3E-02
—
8E-03
4E-02
-
—
8E-03
—
-
8E-04
2E-03
9E-03
Reach D
5E-01
—
1E-02
7E-02
2E-03
8E-02
2E-02
5E-01
2E-03
4E-03
2E-02
—
1E-02
5E-02
-
—
8E-03
—
-
8E-04
1E-03
9E-03
       — = no data available for this COPC at this reach
Wildlife HQ Template Total His
2/13/2003

-------
                                                                       Table 7-2c
                                           Summary of Total Hazard Index (HI) Across All Exposure Pathways


                                                                  MALLARD DUCK
Type
Inorganics
Pesticides
PAHs
PCBs
SVOCs
COPC
Aluminum
Antimony
Arsenic
Barium
Cadmium
Chromium
Copper
Lead
Manganese
Mercury
Selenium
Thallium
Vanadium
Zinc
4,4'-DDE
4,4'-DDD
4,4'-DDT
Benzo[a]pyrene
Aroclor-1254
Aroclor-1260
bis(2-Ethylhexyl)phthalate
Dibutylphthalate
Reach
Buena
Ventura
Park Pond
(ref)
7E-02
—
8E-04
2E-02
-
9E-03
-
4E-02
2E-04
3E-02
5E-03
—
1E-03
1E-02
5E-04
—
4E-04
—
9E-05
7E-05
1E-03
8E-04
2 1st Street
Pond
7E-02
—
1E-03
1E-02
-
1E-02
-
1E-02
4E-04
1E-02
1E-02
—
1E-03
3E-03
2E-03
—
6E-04
—
2E-04
6E-04
8E-04
4E-04
Ogden River
Reach A
(ref)
-
—
-
-
-
-
-
-
-
-
-
-
-
-
4E-04
—
4E-04
-
1E-04
7E-05
9E-04
3E-03
Reach B
3E-02
—
8E-04
9E-03
-
6E-03
-
2E-02
3E-04
4E-03
1E-02
—
7E-04
2E-03
6E-04
—
2E-03
—
7E-04
2E-02
3E-04
3E-03
Reach C
-
—
-
-
-
-
-
-
-
-
-
-
-
-
3E-04
—
2E-03
—
8E-05
5E-04
3E-04
8E-04
Weber River
Reach A
(ref)
6E-02
—
7E-04
1E-02
-
6E-03
-
2E-02
3E-04
2E-02
9E-04
—
7E-04
4E-03
7E-04
—
7E-04
—
1E-04
1E-04
2E-03
6E-03
Reach B
4E-02
—
8E-04
5E-03
-
4E-03
-
1E-02
2E-04
5E-03
5E-03
—
5E-04
3E-03
1E-03
—
1E-03
—
9E-05
9E-05
3E-04
1E-03
Reach C
6E-02
—
2E-03
1E-02
-
6E-03
-
2E-02
3E-04
1E-02
5E-03
—
7E-04
8E-03
2E-03
—
1E-03
—
1E-04
9E-05
1E-03
1E-03
Reach D
4E-02
—
9E-04
6E-03
-
1E-02
-
2E-02
2E-04
8E-03
3E-03
—
7E-04
9E-03
7E-04
—
7E-04
—
8E-05
8E-05
9E-04
4E-04
       — = no data available for this COPC at this reach
Wildlife HQ Template Total His
2/13/2003

-------
                                                                     Table 7-2d
                                          Summary of Total Hazard Index (HI) Across All Exposure Pathways


                                                                 MASKED SHREW
Type
Inorganics
Pesticides
PAHs
PCBs
SVOCs
COPC
Aluminum
Antimony
Arsenic
Barium
Cadmium
Chromium
Copper
Lead
Manganese
Mercury
Selenium
Thallium
Vanadium
Zinc
4,4'-DDE
4,4'-DDD
4,4'-DDT
Benzo[a]pyrene
Aroclor-1254
Aroclor-1260
bis(2-Ethylhexyl)phthalate
Dibutylphthalate
Reach
Buena
Ventura
Park Pond
(ref)
-
-
-
-
-
-
-
-
-
—
-
-
-
-
-
—
-
-
-
—
-
--
2 1st Street
Pond
5E+01
9E-02
8E-01
6E-01
4E-02
2E-04
3E-01
6E-01
1E-01
1E-01
6E-02
—
1E+00
3E-02
-
—
6E-04
—
-
2E-01
2E-03
2E-05
Ogden River
Reach A
(ref)
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
—
-
-
-
-
-
--
Reach B
-
—
-
—
-
—
-
—
-
—
-
—
-
—
-
—
-
—
-
—
-
--
Reach C
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
—
-
—
-
-
-
--
Weber River
Reach A
(ref)
8E+01
7E-01
2E+00
8E-01
2E-01
2E-04
4E-01
3E+00
3E-01
4E+00
1E-02
—
1E+00
3E-01
-
—
8E-05
—
-
8E-03
3E-04
6E-06
Reach B
4E+01
1E-01
3E-01
4E-01
3E-02
1E-04
2E-01
4E-01
1E-01
2E-01
6E-02
—
9E-01
4E-02
-
—
2E-04
—
-
5E-02
4E-04
1E-05
Reach C
4E+01
5E-02
7E-01
5E-01
3E-02
1E-04
1E-01
4E-01
1E-01
3E-01
7E-02
—
9E-01
4E-02
-
—
2E-04
—
-
1E-02
3E-04
2E-05
Reach D
4E+01
5E-01
4E-01
6E-01
2E-02
1E-04
4E-01
3E-01
1E-01
2E-01
4E-02
—
1E+00
5E-02
-
—
2E-04
—
-
1E-02
3E-04
1E-05
       — = no data available for this COPC at this reach
Wildlife HQ Template Total His
2/13/2003

-------
                                                                       Table 7-2e
                                           Summary of Total Hazard Index (HI) Across All Exposure Pathways


                                                                        MINK
Type
Inorganics
Pesticides
PAHs
PCBs
SVOCs
COPC
Aluminum
Antimony
Arsenic
Barium
Cadmium
Chromium
Copper
Lead
Manganese
Mercury
Selenium
Thallium
Vanadium
Zinc
4,4'-DDE
4,4'-DDD
4,4'-DDT
Benzo[a]pyrene
Aroclor-1254
Aroclor-1260
bis(2-Ethylhexyl)phthalate
Dibutylphthalate
Reach
Buena
Ventura
Park Pond
(ref)
4E-01
1E-03
2E-03
1E-02
-
1E-06
-
2E-03
9E-04
8E-03
8E-04
3E-04
8E-03
6E-04
8E-07
—
6E-07
3E-05
5E-05
4E-05
IE-OS
8E-08
2 1st Street
Pond
4E-01
7E-04
4E-03
5E-03
-
1E-06
-
6E-04
2E-03
4E-03
2E-03
6E-04
8E-03
2E-04
5E-02
2E-04
2E-04
1E-02
9E-05
8E-01
4E-03
2E-04
Ogden River
Reach A
(ref)
-
-
-
-
-
-
-
-
-
-
-
-
-
-
5E-07
—
5E-07
8E-05
6E-05
4E-05
IE-OS
4E-07
Reach B
2E-01
5E-04
2E-03
5E-03
-
6E-07
-
7E-04
1E-03
1E-03
2E-03
3E-04
4E-03
1E-04
9E-07
—
2E-06
1E-04
4E-04
1E-02
3E-06
3E-07
Reach C
-
-
-
-
-
-
-
-
-
-
-
-
-
-
4E-07
—
3E-06
5E-05
4E-05
3E-04
4E-06
9E-08
Weber River
Reach A
(ref)
4E-01
2E-03
2E-03
5E-03
-
6E-07
-
8E-04
1E-03
5E-03
1E-04
1E-04
5E-03
2E-04
1E-06
—
1E-06
8E-04
7E-05
7E-05
2E-05
6E-07
Reach B
2E-01
2E-03
2E-03
2E-03
-
4E-07
-
5E-04
8E-04
2E-03
7E-04
8E-05
4E-03
2E-04
2E-06
—
2E-06
2E-04
5E-05
5E-05
4E-06
1E-07
Reach C
4E-01
2E-03
5E-03
5E-03
-
6E-07
-
8E-04
1E-03
4E-03
7E-04
7E-05
5E-03
5E-04
3E-06
—
2E-06
5E-05
5E-05
5E-05
IE-OS
1E-07
Reach D
2E-01
1E-03
3E-03
3E-03
-
1E-06
-
1E-03
9E-04
2E-03
5E-04
8E-05
5E-03
5E-04
1E-06
—
1E-06
4E-05
5E-05
5E-05
IE-OS
4E-08
       — = no data available for this COPC at this reach
Wildlife HQ Template Total His
2/13/2003

-------
                                      Table 7-3
                                  ListofPCBTEFs
Class
Co-planar PCBs
Mono-ortho PCBs
Target Analyte
3,3',4,4'-TCB (77)
3,4,4',5-TCB(81)
3,3',4,4'-5-PeCB (126)
3,3',4,4',5,5'-HxCB (169)

2,3,3',4,4'-PeCB (105)
2,3,4,4',5-PeCB(114)
2,3',4,4',5-PeCB(118)
2',3,4,4',5-PeCB (123)
2,3,3',4,4',5-HxCB (156)
2,3,3',4,4',5'-HxCB (157)

2,3',4,4',5,5'-HxCB (167)
2,3,3',4,4',5,5'-HpCB (189)
TEF
Mammals
0.0001
0.0001
0.1
0.01
0.0001
0.0005
0.0001
0.0001
0.0005
0.0005
0.00001
0.0001
Birds
0.05
0.1
0.1
0.001
0.0001
0.0001
0.00001
0.00001
0.0001
0.0001
0.00001
0.00001
Fish
0.0001
0.0005
0.005
0.00005
< 0.000005
< 0.000005
< 0.000005
< 0.000005
< 0.000005
< 0.000005
< 0.000005
< 0.000005
      TEF = Toxicity Equivalency Factor
      Source: Van den Berg et al. (1998)
Table 7-3 TEFs.wpd

-------
                                                          Table 7-4.  TEQ Values for PCB Congeners in Aquatic Prey Samples
                          Individual Sample Values for Fish
AOI
21st Street Pond
Buena Ventura Park Pond
Ogden River
Weber River
Reach


A
upstream
A
downstream
B
C
C
D
Species
Largemouth bass
Largemouth bass
Largemouth bass
Brown trout
15 sculpin
Brown trout
16 sculpin, 1 green sunfish
Brown trout
5 dace, 5 sculpin, 1 creek chub
White sucker
2 Brown trout, 1 Largemouth bass
2 Brown trout, 1 Largemouth bass
dace, sculpin
Brown trout
Brown trout
Matrix
fillet
fillet
fillet
fillet *
whole body *
fillet
whole body *
fillet
whole body
whole body
fillet
fillet
whole body
fillet
fillet
NetTEQ(pg/g)(a)
Based on
Mammal TEF
2.53
1.32
0.22
0.545
0.22
0.38
0.41
5.13
6.58
16.87
3.46
7.05
13.26
3.02
1.14
Based on Bird
TEF
3.53
2.13
1.60
0.19
0.02
1.02
0.15
4.49
6.40
9.14
4.94
6.91
9.46
7.06
3.04
Based on
Fish TEF
0.12
0.06
0.01
0.02
0.01
0.02
0.01
0.18
0.19
0.64
0.14
0.20
0.27
0.13
0.05
                           (a) Net concentration = Raw concentration in fish sample minus concentration in laboratory-based method blank.
                           * = Samples with elevated level of PCB 77 in method blank
                           Summary Statistics for Fish

Location

21st Street Pond
Ogden River



Weber River

Buena Ventura Park Pond

Reach


A upstream
A downstream
B
C
C
D


N

2
2
2
3
3
1
1
1
Average TEQ (pg/g)
Based on
Mammal
TEF
1.93
0.38
0.39
9.53
7.92
3.02
1.14
0.22
Based on
Bird TEF

2.83
0.11
0.59
6.68
7.10
7.06
3.04
1.60
Based on
Fish TEF

0.09
0.01
0.01
0.34
0.21
0.13
0.05
0.01
Maximum TEQ (pg/g)
Based on
Mammal
TEF
2.53
0.54
0.41
16.87
13.26
3.02
1.14
0.22
Based on
Bird TEF

3.53
0.19
1.02
9.14
9.46
7.06
3.04
1.60
Based on Fish
TEF

0.12
0.02
0.02
0.64
0.27
0.13
0.05
0.01
                           Summary Statistics for Benthic Invertebrates
Location
Ogden River
Buena Ventura Park Pond
Reach
A upstream
A downstream
B

N
1
1
1
1
Sample TEQ (pg/g)
Based on
Mammal
TEF
0.74
1.62
2.86
0.54
Based on
Bird TEF
2.13
3.00
6.27
1.54
Based on
Fish TEF
0.03
0.07
0.10
0.02
                          Benthic tissue samples are based on a whole body composite of multiple species.
Wildlife HQs fromPCBsinfishtissue_v2.xls: Table 7^
1/14/2003

-------
                        Table 7-5.  Risks to Wildlife from PCBs in Aquatic Prey
                                  Calculations Based on Congener-Specific Data

        Evaluation of Risks to Kingfisher from Ingestion of Fish
        HQ = C(fish) / TRV(fish)
        TRV(fish) = TRV(egg) / BCF (fish to egg)
Reach
2 1st Street Pond
Ogden River - A upstream
Ogden River - A downstream
Ogden River - B
Ogden River - C
Weber River - C
Weber River - D
Buena Ventura Park Pond
C(fish) (a)
pg/g TEQ
3.5
0.2
1.0
9.1
9.5
7.1
3.0
1.6
TRY (pg/g TEQ in Fish)
NOAEL
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
LOAEL
4.6
4.6
4.6
4.6
4.6
4.6
4.6
4.6
HQ
NOAEL
8E+00
4E-01
2E+00
2E+01
2E+01
2E+01
7E+00
3E+00
LOAEL
8E-01
4E-02
2E-01
2E+00
2E+00
2E+00
7E-01
3E-01
          (a) Calculated from congener-specie values in fish using TEFs for birds (see Table 7-3)
        Evaluation of Risks to Mallards from Ingestion of Benthic Invertebrates
        HQ = C(benthics) / TRV(benthics)
        TRV(benthics) = TRV(egg) / BCF (benthics to egg)
Reach

Ogden River - A upstream
Ogden River - A downstream
Ogden River - B
Buena Ventura Park Pond
C(benthics) (a)
pg/g TEQ
2.1
3.0
6.3
1.5
TRY (pg/g TEQ in Benthics)
NOAEL
0.46
0.46
0.46
0.46
LOAEL
4.6
4.6
4.6
4.6
HQ
NOAEL
5E+00
7E+00
1E+01
3E+00
LOAEL
5E-01
7E-01
1E+00
3E-01
          (a) Calculated from congener-specie values in fish using TEFs for birds (see Table 7-3)


        Evaluation of Risks to Mink from Ingestion of Fish

        HQ = C(fish) / TRV(diet-based)
Reach
2 1st Street Pond
Ogden River - A upstream
Ogden River - A downstream
Ogden River - B
Ogden River - C
Weber River - C
Weber River - D
Buena Ventura Park Pond
C(fish) (b)
pg/g TEQ
2.5
0.5
0.4
16.9
13.3
3.0
1.1
0.2
TRY (pg/g TEQ)
low (c)
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
high (d)
14.0
14.0
14.0
14.0
14.0
14.0
14.0
14.0
HQ
low
8E-01
2E-01
1E-01
5E+00
4E-K)0
9E-01
3E-01
7E-02
high
2E-01
4E-02
3E-02
1E+00
9E-01
2E-01
8E-02
2E-02
          (b) Calculated from congener-specie values in fish using TEFs for mammals (see Table 7-3)
          (c) Benchmark concentration derived using the log logistic model
          (d) Benchmark concentration derived using the quantal linear model
Wildlife HQs from PCBs in fish tissue_v2.xls: Table 7-5
1/14/2003

-------
                                                                                      Table 8-1
                                                            Summary of Qualitative COPCs for Ecological Risk Assessment

                                                         Baseline Ecological Risk Assessment for the Ogden Rally ard Site, Utah
Class
Inorganics
Pesticides
PAHs
VOCs/SVOCs
PCBs
Petroleum Hydrocarbons
Wildlife Receptors
Surface Water
Typel
7
3
19
93
3
2
Type 2
0
0
0
0
0
0
Sediment
Typel
7
6
20
96
0
1
Type 2
0
0
0
0
0
0
Soil
Typel
7
4
19
94
0
0
Type 2
0
0
0
0
0
0
Aquatic Food Web
Typel
0
3
18
40
0
0
Type 2
0
0
0
0
0
0
Terrestrial Receptors
(plants, soil organisms)
Soil
Typel
4
21
18
85
0
0
Type 2
0
2
0
1
0
0
Aquatic Receptors
Surface Water
Typel
0
5
10
54
0
2
Type 2
1
8
1
52
6
0
Sediment
Typel
7
10
1
63
0
1
Type 2
0
0
1
3
0
0
Consolidated List of Qual COPCs.xls: Qual COPCs
1/13/2003

-------
                           Table 8-2 Summary of Uncertainties in the Ecological Risk Assessment
Assessment
Component
Nature and Extent
of Contamination
Exposure
Assessment
Effects (Toxicity)
Assessment
Risk
Characterization
Description
Samples collected may not be fully representative of variability in space or
time, especially if the number of samples is small.
Analytical results may be imprecise.
Some exposure pathways were not evaluated.
Some chemicals were not evaluated because chemical was never detected,
but detection limit was too high to detect the chemical if it were present at a
level of concern.
Exposure parameters for wildlife receptors are based on studies at other
sites.
Exposure point concentrations for wildlife receptors are based on a
conservative estimate of the mean concentration in the exposure area.
Absorption from site media is assumed to be the same as in laboratory
studies.
Many chemicals lack reliable toxicity benchmarks for some receptors for
some media; these chemicals are not evaluated.
Available toxicity benchmarks are often based on limited data, and values
must be extrapolated across species.
Wildlife receptors selected as representative species may not capture the
full range of sensitivities in site receptors.
Site-specific toxicity testing of sediments did not employ organisms that
burrow into sediment.
Aquatic toxicity benchmarks are based on a wide range of species, many of
which do not occur at this site.
Interactions between chemicals are difficult to account for; effects of one
chemical may increase, decrease, or have no effect on other chemicals.
Estimation of population-level effects from HQ calculations is difficult;
effects assumed to be unlikely when >80% or more had HQ < 1, but this is
an assumption and may vary from receptor to receptor.
Likely Direction of Error
Unknown
Unknown
Underestimate of risk
Underestimate of risk
Unknown
Overestimate of risks
Probably overestimate
risk (especially metals)
Underestimation of risk
Unknown
Unknown
Underestimation of risk
Likely to overestimate
risk
Unknown
Unknown
Likely Magnitude of Error
Probably small
Probably small
Probably small, except possibly for
dietary ingestion by benthic organisms
and direct contact of bottom-feeding fish
with PAHs or PCBs in sediment
Usually small
Probably small
Possibly significant
Possibly significant
Probably small in most cases
Unknown, could be significant
Probably small
Could be significant
Probably small
Unknown, but probably small
Unknown, probably small in most cases
Table 8-2 Uncertainty Summary.wpd

-------
ECOLOGICAL RISK ASSESSMENT FOR THE OGDEN KAILYARD SITE                     FINAL
                                 APPENDIX A




                ENVIRONMENTAL DATA SUMMARY STATISTICS




                        A-l: Surf ace Water




                        A-2: Sediment




                        A-3: Soil




                        A-4: Porewater




                        A-5: Fish Tissue




                        A-6: Benthic Macroinvertebrate Tissue

-------
This page intentionally left blank to facilitate double-sided printing.

-------
                                                                                                    Appendix A-l
                                                                             Summary Statistics for Analytes in Site Surface Waters (ug/L)
                                                                            Baseline Ecological Risk Assessment for the Ogden Railyard Site














1
2



















1
•a
•-s
£


















K

Analyte

Aluminum
Antimony
Arsenic
Barium
Beryllium
Cadmium
Calcium
Chromium
Cobalt
Copper
Iron
Lead
Magnesium
Manganese
Mercury
Nickel
Potassium
Selenium
Silver
Sodium
Thallium
Vanadium
Zinc
4,4'-DDD
4,4'-DDE
4,4'-DDT
Aldrin
alpha-BHC
beta-BHC
Chlordane
delta-BHC
Dieldrin
Endosulfan I
Endosulfan II
Endosulfan Sulfate
Endrin
Endrin Aldehyde
gamma-BHC (Lindane)
Heptachlor
Heptachlor Epoxide
Isodrin
Kepone
Methoxychlor
Toxaphene
2-Chloronaphthalene
1-Methylnaphthalene
2-Methylnaphthalene
Acenaphthene
Acenaphthylene
Aniline
Anthracene
Benzo[a]anthracene
Benzo[a]pyrene
B enzo [b] fluoranthene
Weber River - Reach A

DF Avg Min Max
3/5 4.5E+02 2.5E+02 7.0E+02
0/5 1.5E+01 1.1E+00 2.5E+01
1/5 6.7E+00 1.1E+00 l.OE+01
5/5 1.1E+02 1.1E+02 1.2E+02
0/5 1.9E+00 l.OE+00 2.5E+00
0/5 2.5E+00 2.5E+00 2.5E+00
5/5 6.7E+04 6.4E+04 7.1E+04
0/5 4.0E+00 2.5E+00 5.0E+00
0/5 5.0E+00 5.0E+00 5.0E+00
0/5 5.0E+00 5.0E+00 5.0E+00
2/5 2.6E+02 2.0E+02 3.7E+02
0/5 3.4E+00 1.1E+00 5.0E+00
5/5 1.9E+04 1.7E+04 1.9E+04
5/5 3.1E+01 3.0E+01 3.2E+01
1/5 2.7E-01 l.OE-01 6.6E-01
0/5 8.0E+00 5.0E+00 l.OE+01
5/5 2.6E+03 2.2E+03 3.2E+03
0/5 1.2E+01 1.1E+00 2.0E+01
0/2 2.5E+00 2.5E+00 2.5E+00
5/5 2.7E+04 2.6E+04 2.8E+04
0/5 9.4E+00 1.1E+00 1.5E+01
0/5 5.0E+00 5.0E+00 5.0E+00
0/5 1.1E+01 5.0E+00 1.5E+01
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
0/3 5.0E+00 5.0E+00 5.0E+00
na na na na
0/5 3.3E+00 7.5E-01 5.0E+00
0/5 3.3E+00 7.5E-01 5.0E+00
0/5 3.3E+00 6.3E-01 5.0E+00
0/2 l.OE+00 l.OE+00 l.OE+00
0/5 3.4E+00 l.OE+00 5.0E+00
0/5 3.4E+00 l.OE+00 5.0E+00
0/5 3.3E+00 7.5E-01 5.0E+00
0/5 3.4E+00 l.OE+00 5.0E+00
Weber River - Reach B

DF Avg Min Max
3/4 5.2E+02 2.5E+02 6.8E+02
0/4 1.9E+01 1.1E+00 2.5E+01
3/11 3.8E+00 l.OE+00 l.OE+01
11/11 1.2E+02 l.OE+02 1.3E+02
0/4 2.1E+00 l.OE+00 2.5E+00
0/11 1.2E+00 5.0E-01 2.5E+00
4/4 6.5E+04 6.3E+04 6.6E+04
0/11 4.8E+00 2.5E+00 5.0E+00
0/4 5.0E+00 5.0E+00 5.0E+00
0/4 5.0E+00 5.0E+00 5.0E+00
3/4 3.6E+02 2.0E+02 4.2E+02
5/11 3.7E+00 5.0E-01 6.1E+00
4/4 1.9E+04 1.8E+04 1.9E+04
3/4 2.7E+01 1.5E+01 3.1E+01
1/11 1.7E+00 l.OE-01 2.5E+00
0/4 8.8E+00 5.0E+00 l.OE+01
4/4 2.7E+03 2.5E+03 2.9E+03
0/11 7.1E+00 1.1E+00 2.0E+01
0/10 4.8E+00 2.5E+00 5.0E+00
4/4 2.5E+04 2.3E+04 2.7E+04
0/4 1.2E+01 1.1E+00 1.5E+01
0/4 5.0E+00 5.0E+00 5.0E+00
0/4 1.3E+01 5.0E+00 1.5E+01
0/7 5.0E-02 5.0E-02 5.0E-02
0/7 5.0E-02 5.0E-02 5.0E-02
0/7 5.0E-02 5.0E-02 5.0E-02
0/7 2.5E-02 2.5E-02 2.5E-02
0/7 2.5E-02 2.5E-02 2.5E-02
0/7 2.5E-02 2.5E-02 2.5E-02
0/7 2.5E-01 2.5E-01 2.5E-01
0/7 2.5E-02 2.5E-02 2.5E-02
0/7 5.0E-02 5.0E-02 5.0E-02
0/7 2.5E-02 2.5E-02 2.5E-02
0/7 5.0E-02 5.0E-02 5.0E-02
0/7 5.0E-02 5.0E-02 5.0E-02
0/7 5.0E-02 5.0E-02 5.0E-02
0/7 5.0E-02 5.0E-02 5.0E-02
0/7 2.5E-02 2.5E-02 2.5E-02
0/7 2.5E-02 2.5E-02 2.5E-02
0/7 2.5E-02 2.5E-02 2.5E-02
0/7 2.5E-02 2.5E-02 2.5E-02
0/7 5.0E-02 5.0E-02 5.0E-02
0/7 2.5E-01 2.5E-01 2.5E-01
0/7 5.0E-01 5.0E-01 5.0E-01
0/11 5.0E+00 5.0E+00 5.0E+00
na na na na
0/11 5.0E+00 5.0E+00 5.0E+00
0/11 5.0E+00 5.0E+00 5.0E+00
0/11 5.0E+00 5.0E+00 5.0E+00
na na na na
0/11 5.0E+00 5.0E+00 5.0E+00
0/11 5.0E+00 5.0E+00 5.0E+00
0/11 5.0E+00 5.0E+00 5.0E+00
0/11 5.0E+00 5.0E+00 5.0E+00
Weber River - Reach C

DF Avg Min Max
4/7 4.7E+02 2.5E+02 7.9E+02
0/7 2.2E+01 1.1E+00 2.5E+01
4/11 6.4E+00 1.1E+00 l.OE+01
11/11 1.2E+02 1.1E+02 1.3E+02
0/7 2.3E+00 l.OE+00 2.5E+00
0/11 1.8E+00 5.0E-01 2.5E+00
7/7 6.5E+04 6.4E+04 6.7E+04
0/11 4.8E+00 2.5E+00 5.0E+00
0/7 5.0E+00 5.0E+00 5.0E+00
0/7 5.0E+00 5.0E+00 5.0E+00
4/7 3.6E+02 2.0E+02 6.0E+02
4/11 4.3E+00 1.1E+00 5.0E+00
7/7 1.9E+04 1.8E+04 1.9E+04
7/7 3.9E+01 3.0E+01 6.2E+01
0/11 1.1E+00 l.OE-01 2.5E+00
0/7 9.3E+00 5.0E+00 l.OE+01
7/7 2.8E+03 2.3E+03 3.0E+03
0/11 1.2E+01 1.1E+00 2.0E+01
0/9 4.7E+00 2.5E+00 5.0E+00
7/7 2.7E+04 2.6E+04 3.0E+04
0/7 1.3E+01 1.1E+00 1.5E+01
0/7 5.0E+00 5.0E+00 5.0E+00
0/7 1.4E+01 5.0E+00 1.5E+01
0/4 5.0E-02 5.0E-02 5.0E-02
0/4 5.0E-02 5.0E-02 5.0E-02
0/4 5.0E-02 5.0E-02 5.0E-02
0/4 2.5E-02 2.5E-02 2.5E-02
0/4 2.5E-02 2.5E-02 2.5E-02
0/4 2.5E-02 2.5E-02 2.5E-02
0/4 2.5E-01 2.5E-01 2.5E-01
0/4 2.5E-02 2.5E-02 2.5E-02
0/4 5.0E-02 5.0E-02 5.0E-02
0/4 2.5E-02 2.5E-02 2.5E-02
0/4 5.0E-02 5.0E-02 5.0E-02
0/4 5.0E-02 5.0E-02 5.0E-02
0/4 5.0E-02 5.0E-02 5.0E-02
0/4 5.0E-02 5.0E-02 5.0E-02
0/4 2.5E-02 2.5E-02 2.5E-02
0/4 2.5E-02 2.5E-02 2.5E-02
0/4 2.5E-02 2.5E-02 2.5E-02
0/4 2.5E-02 2.5E-02 2.5E-02
0/4 5.0E-02 5.0E-02 5.0E-02
0/4 2.5E-01 2.5E-01 2.5E-01
0/4 5.0E-01 5.0E-01 5.0E-01
0/10 5.0E+00 5.0E+00 5.0E+00
na na na na
0/11 4.6E+00 l.OE+00 5.0E+00
0/11 4.6E+00 l.OE+00 5.0E+00
0/11 4.6E+00 5.0E-01 5.0E+00
0/1 l.OE+00 l.OE+00 l.OE+00
0/11 4.6E+00 l.OE+00 5.0E+00
0/11 4.6E+00 l.OE+00 5.0E+00
0/11 4.6E+00 l.OE+00 5.0E+00
0/11 4.6E+00 l.OE+00 5.0E+00
Weber River - Reach D

DF Avg Min Max
2/10 3.4E+02 2.5E+02 7.1E+02
0/10 2.0E+01 1.1E+00 2.5E+01
2/15 6.0E+00 l.OE+00 l.OE+01
15/15 1.1E+02 1.1E+02 1.2E+02
0/10 2.2E+00 l.OE+00 2.5E+00
0/15 1.8E+00 5.0E-01 2.5E+00
10/10 6.6E+04 6.3E+04 6.9E+04
0/15 4.7E+00 2.5E+00 5.0E+00
0/10 5.0E+00 5.0E+00 5.0E+00
0/10 5.0E+00 5.0E+00 5.0E+00
2/10 2.5E+02 2.0E+02 4.7E+02
5/15 3.6E+00 1.1E+00 5.0E+00
10/10 1.9E+04 1.8E+04 1.9E+04
10/10 3.4E+01 3.1E+01 3.8E+01
0/15 9.8E-01 l.OE-01 2.5E+00
0/10 9.0E+00 5.0E+00 l.OE+01
10/10 2.9E+03 2.7E+03 3.2E+03
0/15 1.2E+01 1.1E+00 2.0E+01
0/11 4.5E+00 2.5E+00 5.0E+00
10/10 2.8E+04 2.7E+04 2.9E+04
0/10 1.2E+01 1.1E+00 1.5E+01
0/10 5.0E+00 5.0E+00 5.0E+00
0/10 1.3E+01 5.0E+00 1.5E+01
0/5 5.0E-02 5.0E-02 5.0E-02
0/5 5.0E-02 5.0E-02 5.0E-02
0/5 5.0E-02 5.0E-02 5.0E-02
0/5 2.5E-02 2.5E-02 2.5E-02
0/5 2.5E-02 2.5E-02 2.5E-02
0/5 2.5E-02 2.5E-02 2.5E-02
0/5 2.5E-01 2.5E-01 2.5E-01
0/5 2.5E-02 2.5E-02 2.5E-02
0/5 5.0E-02 5.0E-02 5.0E-02
0/5 2.5E-02 2.5E-02 2.5E-02
0/5 5.0E-02 5.0E-02 5.0E-02
0/5 5.0E-02 5.0E-02 5.0E-02
0/5 5.0E-02 5.0E-02 5.0E-02
0/5 5.0E-02 5.0E-02 5.0E-02
0/5 2.5E-02 2.5E-02 2.5E-02
0/5 2.5E-02 2.5E-02 2.5E-02
0/5 2.5E-02 2.5E-02 2.5E-02
0/5 2.5E-02 2.5E-02 2.5E-02
0/5 5.0E-02 5.0E-02 5.0E-02
0/5 2.5E-01 2.5E-01 2.5E-01
0/5 5.0E-01 5.0E-01 5.0E-01
0/9 5.0E+00 5.0E+00 5.0E+00
na na na na
0/17 3.1E+00 7.5E-01 5.0E+00
1/17 2.9E+00 7.5E-01 5.0E+00
0/17 2.9E+00 5.0E-01 5.0E+00
0/8 l.OE+00 l.OE+00 l.OE+00
0/17 3.1E+00 l.OE+00 5.0E+00
0/17 3.1E+00 l.OE+00 5.0E+00
0/17 3.1E+00 7.5E-01 5.0E+00
0/17 3.1E+00 l.OE+00 5.0E+00
Buena Ventura Park Pond

DF Avg Min Max
4/4 9.4E+02 2.9E+02 1.9E+03
1/4 2.0E+00 1.1E+00 3.4E+00
0/4 3.8E+00 1.1E+00 4.8E+00
4/4 8.4E+01 6.9E+01 1.1E+02
0/4 3.2E-01 9.0E-02 l.OE+00
3/4 1.3E+00 5.0E-01 2.5E+00
4/4 4.0E+04 3.8E+04 4.4E+04
3/4 2.0E+00 1.2E+00 3.0E+00
0/4 1.7E+00 6.0E-01 5.0E+00
3/4 6.2E+00 5.0E+00 7.4E+00
4/4 l.OE+03 4.0E+02 2.1E+03
4/4 6.7E+00 2.1E+00 1.2E+01
4/4 9.8E+03 9.3E+03 l.OE+04
4/4 7.1E+01 4.5E+01 1.1E+02
0/4 4.8E-02 3.0E-02 l.OE-01
3/4 3.0E+00 1.8E+00 5.0E+00
3/4 7.3E+03 l.OE+03 2.3E+04
0/4 1.6E+00 1.1E+00 1.8E+00
3/4 1.5E+00 1.1E+00 2.5E+00
4/4 2.0E+04 1.6E+04 3.3E+04
0/4 3.9E+00 1.1E+00 4.9E+00
1/4 3.6E+00 2.2E+00 5.1E+00
2/4 1.2E+01 4.5E+00 2.6E+01
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
0/1 5.0E+00 5.0E+00 5.0E+00
0/3 l.OE+00 l.OE+00 l.OE+00
0/4 2.0E+00 l.OE+00 5.0E+00
0/4 2.0E+00 l.OE+00 5.0E+00
0/4 1.6E+00 5.0E-01 5.0E+00
0/3 l.OE+00 l.OE+00 l.OE+00
0/4 2.0E+00 l.OE+00 5.0E+00
0/4 2.0E+00 l.OE+00 5.0E+00
0/4 2.0E+00 l.OE+00 5.0E+00
0/4 2.0E+00 l.OE+00 5.0E+00
Reach Data Summ_SW.xls: Table Summ
1/13/2003
                                                                                                                                                                                                           Page 1 of 8

-------
                                                                                                    Appendix A-l
                                                                             Summary Statistics for Analytes in Site Surface Waters (ug/L)
                                                                            Baseline Ecological Risk Assessment for the Ogden Railyard Site



a












m



Petroleum
Hydrocarbons






















U
o
^













Benzo[g,h,i]perylene
Benzo[k]fluoranthene
Chrysene
Dibenz[a,h]anthracene
Fluoranthene
Fluorene
Indeno[l,2,3-c,d]pyrene
Naphthalene
Phenanthrene
Pyrene
Aroclor-1016
Aroclor-1221
Aroclor-1232
Aroclor-1242
Aroclor-1248
Aroclor-1254
Aroclor-1260
Diesel fuel
Total Petroleum Hydrocarbons (TPH)
1 ,2,4-Trichlorobenzene
1 ,2-Dichlorobenzene
1,3-Dichlorobenzene
1 ,4-Dichlorobenzene
2,4,5-Trichlorophenol
2,4,6-Trichlorophenol
2,4-Dichlorophenol
2,4-Dimethylphenol
2,4-Dinitrophenol
2,4-Dinitrotoluene
2,6-Dinitrotoluene
2-Chlorophenol
2-Methylphenol (o-Cresol)
2-Nitroaniline
2-Nitrophenol
3,3'-Dichlorobenzidine
3-Nitroaniline
4,6-Dinitro-o-cresol
4-Bromophenyl-phenylether
4-Chloro-3-Methylphenol
4-Chloroaniline
4-Chlorophenyl-phenylether
4-Methylphenol (p-Cresol)
4-Nitroaniline
4-Nitrophenol
Benzyl alcohol
bis(2-Chloroethoxy)m ethane
bis(2-Chloroethyl)ether
bis(2-Chloroisopropyl)ether
bis(2-Ethylhexyl)phthalate
bis(n-octyl)phthalate
Butylbenzylphthalate
Carbazole
DibenzofViran
Dibutylphthalate
Weber River - Reach A

DF Avg Min Max
0/5 3.5E+00 1.3E+00 5.0E+00
0/5 3.4E+00 l.OE+00 5.0E+00
0/5 3.3E+00 7.5E-01 5.0E+00
0/5 3.5E+00 1.3E+00 5.0E+00
0/5 3.4E+00 l.OE+00 5.0E+00
0/5 3.3E+00 7.5E-01 5.0E+00
0/5 3.4E+00 8.8E-01 5.0E+00
0/7 2.5E+00 5.0E-01 5.0E+00
0/5 3.3E+00 7.5E-01 5.0E+00
0/5 3.3E+00 7.5E-01 5.0E+00
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
0/2 5.0E+02 5.0E+02 5.0E+02
0/7 2.6E+00 5.0E-01 5.0E+00
0/7 2.5E+00 5.0E-01 5.0E+00
0/5 3.2E+00 5.0E-01 5.0E+00
0/7 2.6E+00 5.0E-01 5.0E+00
0/3 5.0E+00 5.0E+00 5.0E+00
0/3 5.0E+00 5.0E+00 5.0E+00
0/3 5.0E+00 5.0E+00 5.0E+00
0/5 3.2E+00 5.0E-01 5.0E+00
0/3 5.0E+00 5.0E+00 5.0E+00
0/5 3.3E+00 7.5E-01 5.0E+00
0/5 3.2E+00 5.0E-01 5.0E+00
0/3 5.0E+00 5.0E+00 5.0E+00
0/5 3.3E+00 7.5E-01 5.0E+00
0/3 5.0E+00 5.0E+00 5.0E+00
0/3 5.0E+00 5.0E+00 5.0E+00
0/5 3.5E+00 1.3E+00 5.0E+00
0/3 5.0E+00 5.0E+00 5.0E+00
0/5 5.0E+00 5.0E+00 5.0E+00
0/3 5.0E+00 5.0E+00 5.0E+00
0/3 5.0E+00 5.0E+00 5.0E+00
0/3 5.0E+00 5.0E+00 5.0E+00
0/3 5.0E+00 5.0E+00 5.0E+00
0/5 3.2E+00 5.0E-01 5.0E+00
0/3 5.0E+00 5.0E+00 5.0E+00
0/3 5.0E+00 5.0E+00 5.0E+00
0/3 5.0E+00 5.0E+00 5.0E+00
0/3 5.0E+00 5.0E+00 5.0E+00
0/5 3.3E+00 7.5E-01 5.0E+00
0/3 5.0E+00 5.0E+00 5.0E+00
0/5 3.5E+00 1.3E+00 5.0E+00
0/5 3.5E+00 1.3E+00 5.0E+00
0/5 3.5E+00 1.3E+00 5.0E+00
0/5 4.3E+00 3.1E+00 5.0E+00
0/3 5.0E+00 5.0E+00 5.0E+00
0/5 4.5E+00 l.OE+00 6.5E+00
Weber River - Reach B

DF Avg Min Max
0/11 5.0E+00 5.0E+00 5.0E+00
0/11 5.0E+00 5.0E+00 5.0E+00
0/11 5.0E+00 5.0E+00 5.0E+00
0/11 5.0E+00 5.0E+00 5.0E+00
0/11 5.0E+00 5.0E+00 5.0E+00
0/11 5.0E+00 5.0E+00 5.0E+00
0/11 5.0E+00 5.0E+00 5.0E+00
0/12 4.6E+00 5.0E-01 5.0E+00
0/11 5.0E+00 5.0E+00 5.0E+00
0/11 5.0E+00 5.0E+00 5.0E+00
0/7 2.5E-01 2.5E-01 2.5E-01
0/7 2.5E-01 2.5E-01 2.5E-01
0/7 2.5E-01 2.5E-01 2.5E-01
0/7 2.5E-01 2.5E-01 2.5E-01
0/7 2.5E-01 2.5E-01 2.5E-01
0/7 2.5E-01 2.5E-01 2.5E-01
0/7 2.5E-01 2.5E-01 2.5E-01
na na na na
0/1 5.0E+02 5.0E+02 5.0E+02
0/12 4.6E+00 5.0E-01 5.0E+00
0/12 4.6E+00 5.0E-01 5.0E+00
0/12 4.6E+00 5.0E-01 5.0E+00
0/12 4.6E+00 5.0E-01 5.0E+00
0/11 9.8E+00 5.0E+00 1.3E+01
0/11 5.0E+00 5.0E+00 5.0E+00
0/11 5.0E+00 5.0E+00 5.0E+00
0/11 5.0E+00 5.0E+00 5.0E+00
0/11 9.8E+00 5.0E+00 1.3E+01
0/11 5.0E+00 5.0E+00 5.0E+00
1/11 6.1E+00 5.0E+00 1.7E+01
0/11 5.0E+00 5.0E+00 5.0E+00
0/11 5.0E+00 5.0E+00 5.0E+00
0/11 9.8E+00 5.0E+00 1.3E+01
0/11 5.0E+00 5.0E+00 5.0E+00
0/11 5.0E+00 5.0E+00 5.0E+00
0/11 9.8E+00 5.0E+00 1.3E+01
0/11 9.8E+00 5.0E+00 1.3E+01
0/4 5.0E+00 5.0E+00 5.0E+00
0/11 5.0E+00 5.0E+00 5.0E+00
0/11 5.0E+00 5.0E+00 5.0E+00
0/11 5.0E+00 5.0E+00 5.0E+00
0/11 5.0E+00 5.0E+00 5.0E+00
0/11 9.8E+00 5.0E+00 1.3E+01
0/11 9.8E+00 5.0E+00 1.3E+01
0/4 5.0E+00 5.0E+00 5.0E+00
0/11 5.0E+00 5.0E+00 5.0E+00
0/11 5.0E+00 5.0E+00 5.0E+00
0/11 5.0E+00 5.0E+00 5.0E+00
1/11 4.6E+00 1.1E+00 5.0E+00
0/11 5.0E+00 5.0E+00 5.0E+00
0/11 5.0E+00 5.0E+00 5.0E+00
0/11 5.0E+00 5.0E+00 5.0E+00
0/11 5.0E+00 5.0E+00 5.0E+00
2/11 4.7E+00 3.0E+00 5.0E+00
Weber River - Reach C

DF Avg Min Max
0/11 4.6E+00 l.OE+00 5.0E+00
0/11 4.6E+00 l.OE+00 5.0E+00
0/11 4.6E+00 l.OE+00 5.0E+00
0/11 4.6E+00 l.OE+00 5.0E+00
0/11 4.6E+00 l.OE+00 5.0E+00
0/11 4.6E+00 l.OE+00 5.0E+00
0/11 4.6E+00 l.OE+00 5.0E+00
0/12 4.3E+00 5.0E-01 5.0E+00
0/11 4.6E+00 l.OE+00 5.0E+00
0/11 4.6E+00 l.OE+00 5.0E+00
0/4 2.5E-01 2.5E-01 2.5E-01
0/4 2.5E-01 2.5E-01 2.5E-01
0/4 2.5E-01 2.5E-01 2.5E-01
0/4 2.5E-01 2.5E-01 2.5E-01
0/4 2.5E-01 2.5E-01 2.5E-01
0/4 2.5E-01 2.5E-01 2.5E-01
0/4 2.5E-01 2.5E-01 2.5E-01
na na na na
0/1 5.0E+02 5.0E+02 5.0E+02
0/12 4.3E+00 5.0E-01 5.0E+00
0/12 4.3E+00 5.0E-01 5.0E+00
0/11 4.6E+00 5.0E-01 5.0E+00
0/12 4.3E+00 5.0E-01 5.0E+00
0/10 8.0E+00 5.0E+00 1.3E+01
0/10 5.0E+00 5.0E+00 5.0E+00
0/10 5.0E+00 5.0E+00 5.0E+00
0/11 4.6E+00 5.0E-01 5.0E+00
0/10 8.0E+00 5.0E+00 1.3E+01
0/11 4.6E+00 l.OE+00 5.0E+00
0/11 4.6E+00 5.0E-01 5.0E+00
0/10 5.0E+00 5.0E+00 5.0E+00
0/11 4.6E+00 l.OE+00 5.0E+00
0/10 8.0E+00 5.0E+00 1.3E+01
0/10 5.0E+00 5.0E+00 5.0E+00
0/11 4.6E+00 l.OE+00 5.0E+00
0/10 8.0E+00 5.0E+00 1.3E+01
0/11 7.7E+00 5.0E+00 1.3E+01
0/6 5.0E+00 5.0E+00 5.0E+00
0/10 5.0E+00 5.0E+00 5.0E+00
0/10 5.0E+00 5.0E+00 5.0E+00
0/10 5.0E+00 5.0E+00 5.0E+00
0/11 4.6E+00 5.0E-01 5.0E+00
0/10 8.0E+00 5.0E+00 1.3E+01
0/10 8.0E+00 5.0E+00 1.3E+01
0/6 5.0E+00 5.0E+00 5.0E+00
0/10 5.0E+00 5.0E+00 5.0E+00
0/11 4.6E+00 l.OE+00 5.0E+00
0/10 5.0E+00 5.0E+00 5.0E+00
0/11 4.6E+00 l.OE-01 5.0E+00
0/11 4.6E+00 l.OE+00 5.0E+00
0/11 4.6E+00 2.0E-01 5.0E+00
0/11 4.8E+00 3.0E+00 5.0E+00
0/10 5.0E+00 5.0E+00 5.0E+00
1/11 4.6E+00 2.5E-01 5.7E+00
Weber River - Reach D

DF Avg Min Max
0/17 3.1E+00 l.OE+00 5.0E+00
0/17 3.1E+00 l.OE+00 5.0E+00
0/17 3.1E+00 7.5E-01 5.0E+00
0/17 3.1E+00 l.OE+00 5.0E+00
0/17 3.1E+00 l.OE+00 5.0E+00
0/17 3.1E+00 7.5E-01 5.0E+00
0/17 3.1E+00 8.8E-01 5.0E+00
1/19 2.8E+00 l.OE-01 5.0E+00
1/17 3.0E+00 9.0E-02 5.0E+00
0/17 3.1E+00 7.5E-01 5.0E+00
0/5 2.5E-01 2.5E-01 2.5E-01
0/5 2.5E-01 2.5E-01 2.5E-01
0/5 2.5E-01 2.5E-01 2.5E-01
0/5 2.5E-01 2.5E-01 2.5E-01
0/5 2.5E-01 2.5E-01 2.5E-01
0/5 2.5E-01 2.5E-01 2.5E-01
0/5 2.5E-01 2.5E-01 2.5E-01
0/1 2.5E+02 2.5E+02 2.5E+02
0/2 5.0E+02 5.0E+02 5.0E+02
0/19 2.8E+00 5.0E-01 5.0E+00
0/19 2.8E+00 5.0E-01 5.0E+00
0/11 4.2E+00 5.0E-01 5.0E+00
0/19 2.8E+00 5.0E-01 5.0E+00
0/9 1.1E+01 5.0E+00 1.3E+01
0/9 5.0E+00 5.0E+00 5.0E+00
0/9 5.0E+00 5.0E+00 5.0E+00
0/17 2.9E+00 5.0E-01 5.0E+00
0/9 1.1E+01 5.0E+00 1.3E+01
0/17 3.1E+00 7.5E-01 5.0E+00
0/17 2.9E+00 5.0E-01 5.0E+00
0/9 5.0E+00 5.0E+00 5.0E+00
0/17 3.1E+00 7.5E-01 5.0E+00
0/9 1.1E+01 5.0E+00 1.3E+01
0/9 5.0E+00 5.0E+00 5.0E+00
0/17 3.1E+00 l.OE+00 5.0E+00
0/9 1.1E+01 5.0E+00 1.3E+01
0/17 8.1E+00 5.0E+00 1.3E+01
0/2 5.0E+00 5.0E+00 5.0E+00
0/9 5.0E+00 5.0E+00 5.0E+00
0/9 5.0E+00 5.0E+00 5.0E+00
0/9 5.0E+00 5.0E+00 5.0E+00
0/17 2.9E+00 5.0E-01 5.0E+00
0/9 1.1E+01 5.0E+00 1.3E+01
0/9 1.1E+01 5.0E+00 1.3E+01
0/2 5.0E+00 5.0E+00 5.0E+00
0/9 5.0E+00 5.0E+00 5.0E+00
0/17 3.1E+00 7.5E-01 5.0E+00
0/9 5.0E+00 5.0E+00 5.0E+00
3/17 2.4E+00 l.OE-01 5.0E+00
0/17 3.1E+00 l.OE+00 5.0E+00
0/17 2.9E+00 5.0E-02 5.0E+00
0/17 4.1E+00 3.0E+00 5.0E+00
0/9 5.0E+00 5.0E+00 5.0E+00
1/17 2.7E+00 2.5E-01 5.0E+00
Buena Ventura Park Pond

DF Avg Min Max
0/4 2.0E+00 l.OE+00 5.0E+00
0/4 2.0E+00 l.OE+00 5.0E+00
0/4 2.0E+00 l.OE+00 5.0E+00
0/4 2.0E+00 l.OE+00 5.0E+00
1/4 1.8E+00 l.OE-02 5.0E+00
0/4 2.0E+00 l.OE+00 5.0E+00
0/4 2.0E+00 l.OE+00 5.0E+00
0/5 1.7E+00 5.0E-01 5.0E+00
0/4 2.0E+00 l.OE+00 5.0E+00
0/4 2.0E+00 l.OE+00 5.0E+00
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
0/5 1.7E+00 5.0E-01 5.0E+00
0/5 1.7E+00 5.0E-01 5.0E+00
0/2 2.8E+00 5.0E-01 5.0E+00
0/5 1.7E+00 5.0E-01 5.0E+00
0/1 5.0E+00 5.0E+00 5.0E+00
0/1 5.0E+00 5.0E+00 5.0E+00
0/1 5.0E+00 5.0E+00 5.0E+00
0/4 1.6E+00 5.0E-01 5.0E+00
0/1 5.0E+00 5.0E+00 5.0E+00
0/4 2.0E+00 l.OE+00 5.0E+00
0/4 1.6E+00 5.0E-01 5.0E+00
0/1 5.0E+00 5.0E+00 5.0E+00
0/4 2.0E+00 l.OE+00 5.0E+00
0/1 5.0E+00 5.0E+00 5.0E+00
0/1 5.0E+00 5.0E+00 5.0E+00
0/4 2.0E+00 l.OE+00 5.0E+00
0/1 5.0E+00 5.0E+00 5.0E+00
0/4 5.0E+00 5.0E+00 5.0E+00
0/1 5.0E+00 5.0E+00 5.0E+00
0/1 5.0E+00 5.0E+00 5.0E+00
0/1 5.0E+00 5.0E+00 5.0E+00
0/1 5.0E+00 5.0E+00 5.0E+00
0/4 1.6E+00 5.0E-01 5.0E+00
0/1 5.0E+00 5.0E+00 5.0E+00
0/1 5.0E+00 5.0E+00 5.0E+00
0/1 5.0E+00 5.0E+00 5.0E+00
0/1 5.0E+00 5.0E+00 5.0E+00
0/4 2.0E+00 l.OE+00 5.0E+00
0/1 5.0E+00 5.0E+00 5.0E+00
0/4 1.4E+00 l.OE-01 5.0E+00
0/4 2.0E+00 l.OE+00 5.0E+00
0/4 1.7E+00 4.5E-01 5.0E+00
0/4 3.5E+00 3.0E+00 5.0E+00
0/1 5.0E+00 5.0E+00 5.0E+00
0/4 1.5E+00 2.0E-01 5.0E+00
Reach Data Summ_SW.xls: Table Summ
1/13/2003
                                                                                                                                                                                                           Page 2 of 8

-------
                                                                                                    Appendix A-l
                                                                             Summary Statistics for Analytes in Site Surface Waters (ug/L)
                                                                            Baseline Ecological Risk Assessment for the Ogden Railyard Site
Type
















































U
o




Analyte
Diethylphthalate
Dimethylphthalate
Hexachlorobenzene
Hexachlorobutadiene
Hexachlorocyclopentadiene
Hexachloroethane
Isophorone
Nitrobenzene
N-Nitrosodiphenylamine
n-Nitrosodipropylamine
Pentachlorophenol (PCP)
Phenol
1,1,1 ,2-Tetrachloroethane
1,1,1 -Trichloroethane
1 , 1 ,2,2-Tetrachloroethane
1 , 1 ,2-Trichloroethane
1 , 1 -Dichloroethane
1 , 1 -Dichloroethene
1 , 1 -Dichloropropene
1,2,3-Trichlorobenzene
1,2,3-Trichloropropane
1,2,4-Trimetliylbenzene
l,2-Dibromo-3-chloropropane (DBCP)
1,2-Dichloroethane
1 ,2-Dichloroethene
1 ,2-Dichloropropane
1,3,5-Trimethylbenzene
1,3-Dichloropropane
1,4-Dioxane
2,2-Dichloropropane
2-Chloro-l,3-butadiene (Chloroprene)
2-Chloroethyl vinyl ether
2-Chlorotoluene
2-Hexanone
3-Chloropropene (Allyl Chloride)
4-Chlorotoluene
Acetone
Acetonitrile
Acrolein
Acrylonitrile
Benzene
Bromobenzene
Bromodichlorom ethane
Bromoform
Bromom ethane (Methyl bromide)
Carbon Bisulfide
Carbon Tetrachloride
Chlorobenzene
Chlorodibromomethane
Chloroethane (Ethyl chloride)
Chloroform
Chlorom ethane (Methyl chloride)
cis- 1 ,2-Dichloroethene
cis- 1 ,3-Dichloropropene
Weber River - Reach A
DF Avg Min Max
0/5 3.3E+00 7.5E-01 5.0E+00
0/3 5.0E+00 5.0E+00 5.0E+00
0/5 3.3E+00 7.5E-01 5.0E+00
0/7 2.6E+00 5.0E-01 5.0E+00
0/3 5.0E+00 5.0E+00 5.0E+00
0/5 3.4E+00 l.OE+00 5.0E+00
0/3 5.0E+00 5.0E+00 5.0E+00
0/5 3.3E+00 7.5E-01 5.0E+00
0/3 5.0E+00 5.0E+00 5.0E+00
0/5 3.3E+00 7.5E-01 5.0E+00
0/5 3.4E+00 8.8E-01 5.0E+00
0/5 3.2E+00 5.0E-01 5.0E+00
0/2 5.0E-01 5.0E-01 5.0E-01
0/5 5.0E-01 5.0E-01 5.0E-01
0/5 5.0E-01 5.0E-01 5.0E-01
0/5 5.0E-01 5.0E-01 5.0E-01
0/5 5.0E-01 5.0E-01 5.0E-01
0/2 5.0E-01 5.0E-01 5.0E-01
0/2 5.0E-01 5.0E-01 5.0E-01
0/2 5.0E-01 5.0E-01 5.0E-01
0/5 1.1E+00 5.0E-01 1.5E+00
0/2 5.0E-01 5.0E-01 5.0E-01
0/2 5.0E-01 5.0E-01 5.0E-01
0/5 5.0E-01 5.0E-01 5.0E-01
0/3 l.OE+00 l.OE+00 l.OE+00
0/5 5.0E-01 5.0E-01 5.0E-01
0/2 5.0E-01 5.0E-01 5.0E-01
0/2 5.0E-01 5.0E-01 5.0E-01
na na na na
0/2 5.0E-01 5.0E-01 5.0E-01
na na na na
na na na na
0/2 5.0E-01 5.0E-01 5.0E-01
0/4 1.8E+00 l.OE+00 2.5E+00
na na na na
0/2 5.0E-01 5.0E-01 5.0E-01
1/5 2.7E+00 1.8E+00 4.0E+00
0/3 2.5E+00 2.5E+00 2.5E+00
na na na na
na na na na
0/5 5.0E-01 5.0E-01 5.0E-01
0/2 5.0E-01 5.0E-01 5.0E-01
0/5 5.0E-01 5.0E-01 5.0E-01
0/5 5.0E-01 5.0E-01 5.0E-01
0/5 7.0E-01 5.0E-01 l.OE+00
0/5 5.0E-01 5.0E-01 5.0E-01
0/5 5.0E-01 5.0E-01 5.0E-01
0/5 5.0E-01 5.0E-01 5.0E-01
0/5 5.0E-01 5.0E-01 5.0E-01
0/5 5.0E-01 5.0E-01 5.0E-01
0/5 5.0E-01 5.0E-01 5.0E-01
0/5 8.0E-01 5.0E-01 l.OE+00
0/3 5.0E-01 5.0E-01 5.0E-01
0/7 5.0E-01 5.0E-01 5.0E-01
Weber River - Reach B
DF Avg Min Max
0/11 5.0E+00 5.0E+00 5.0E+00
0/11 5.0E+00 5.0E+00 5.0E+00
0/11 5.0E+00 5.0E+00 5.0E+00
0/12 4.6E+00 5.0E-01 5.0E+00
0/11 5.0E+00 5.0E+00 5.0E+00
0/11 5.0E+00 5.0E+00 5.0E+00
0/11 5.0E+00 5.0E+00 5.0E+00
0/11 5.0E+00 5.0E+00 5.0E+00
0/11 5.0E+00 5.0E+00 5.0E+00
0/11 5.0E+00 5.0E+00 5.0E+00
0/11 9.8E+00 5.0E+00 1.3E+01
2/11 4.7E+00 1.4E+00 5.0E+00
0/14 4.7E+00 5.0E-01 5.0E+00
0/17 2.0E+00 5.0E-01 2.5E+00
0/17 2.0E+00 5.0E-01 2.5E+00
0/17 2.0E+00 5.0E-01 2.5E+00
0/17 2.0E+00 5.0E-01 2.5E+00
0/1 5.0E-01 5.0E-01 5.0E-01
0/1 5.0E-01 5.0E-01 5.0E-01
0/1 5.0E-01 5.0E-01 5.0E-01
0/17 4.1E+00 5.0E-01 5.0E+00
0/1 5.0E-01 5.0E-01 5.0E-01
1/14 4.4E+00 5.0E-01 5.0E+00
0/17 2.0E+00 5.0E-01 2.5E+00
0/16 2.2E+00 l.OE+00 2.5E+00
0/17 2.0E+00 5.0E-01 2.5E+00
0/1 5.0E-01 5.0E-01 5.0E-01
0/1 5.0E-01 5.0E-01 5.0E-01
0/13 1.5E+02 1.5E+02 1.5E+02
0/1 5.0E-01 5.0E-01 5.0E-01
0/13 5.0E+00 5.0E+00 5.0E+00
0/13 5.0E+00 5.0E+00 5.0E+00
0/1 5.0E-01 5.0E-01 5.0E-01
0/15 4.6E+00 l.OE+00 5.0E+00
0/13 5.0E+00 5.0E+00 5.0E+00
0/1 5.0E-01 5.0E-01 5.0E-01
6/17 1.2E+02 1.8E+00 1.9E+03
0/16 2.1E+01 2.5E+00 2.5E+01
0/13 5.0E+01 5.0E+01 5.0E+01
0/13 2.5E+01 2.5E+01 2.5E+01
0/17 2.0E+00 5.0E-01 2.5E+00
0/1 5.0E-01 5.0E-01 5.0E-01
0/17 2.0E+00 5.0E-01 2.5E+00
0/17 2.0E+00 5.0E-01 2.5E+00
0/17 4.0E+00 5.0E-01 5.0E+00
1/17 2.0E+00 5.0E-01 2.5E+00
0/17 2.0E+00 5.0E-01 2.5E+00
0/17 2.0E+00 5.0E-01 2.5E+00
0/17 2.0E+00 5.0E-01 2.5E+00
0/17 3.9E+00 5.0E-01 5.0E+00
0/17 2.0E+00 5.0E-01 2.5E+00
0/17 4.0E+00 5.0E-01 5.0E+00
0/3 5.0E-01 5.0E-01 5.0E-01
0/18 1.9E+00 5.0E-01 2.5E+00
Weber River - Reach C
DF Avg Min Max
0/11 4.6E+00 2.0E-01 5.0E+00
0/10 5.0E+00 5.0E+00 5.0E+00
0/11 4.6E+00 l.OE+00 5.0E+00
0/12 4.3E+00 5.0E-01 5.0E+00
0/10 5.0E+00 5.0E+00 5.0E+00
0/11 4.6E+00 l.OE+00 5.0E+00
0/10 5.0E+00 5.0E+00 5.0E+00
0/11 4.6E+00 l.OE+00 5.0E+00
0/10 5.0E+00 5.0E+00 5.0E+00
0/11 4.6E+00 l.OE+00 5.0E+00
0/11 7.4E+00 l.OE+00 1.3E+01
1/11 4.2E+00 5.0E-01 5.0E+00
0/5 4.1E+00 5.0E-01 5.0E+00
0/11 1.2E+00 5.0E-01 2.5E+00
0/11 1.2E+00 5.0E-01 2.5E+00
0/11 1.2E+00 5.0E-01 2.5E+00
0/11 1.2E+00 5.0E-01 2.5E+00
0/1 5.0E-01 5.0E-01 5.0E-01
0/1 5.0E-01 5.0E-01 5.0E-01
0/1 5.0E-01 5.0E-01 5.0E-01
0/11 2.7E+00 5.0E-01 5.0E+00
0/1 5.0E-01 5.0E-01 5.0E-01
0/5 4.1E+00 5.0E-01 5.0E+00
0/11 1.2E+00 5.0E-01 2.5E+00
0/10 1.6E+00 l.OE+00 2.5E+00
0/11 1.2E+00 5.0E-01 2.5E+00
0/1 5.0E-01 5.0E-01 5.0E-01
0/1 5.0E-01 5.0E-01 5.0E-01
0/4 1.5E+02 1.5E+02 1.5E+02
0/1 5.0E-01 5.0E-01 5.0E-01
0/4 5.0E+00 5.0E+00 5.0E+00
0/4 5.0E+00 5.0E+00 5.0E+00
0/1 5.0E-01 5.0E-01 5.0E-01
0/5 4.2E+00 l.OE+00 5.0E+00
0/4 5.0E+00 5.0E+00 5.0E+00
0/1 5.0E-01 5.0E-01 5.0E-01
1/11 3.4E+00 2.5E+00 5.0E+00
0/10 1.2E+01 2.5E+00 2.5E+01
0/4 5.0E+01 5.0E+01 5.0E+01
0/4 2.5E+01 2.5E+01 2.5E+01
0/11 1.2E+00 5.0E-01 2.5E+00
0/1 5.0E-01 5.0E-01 5.0E-01
0/11 1.2E+00 5.0E-01 2.5E+00
0/11 1.2E+00 5.0E-01 2.5E+00
0/11 2.2E+00 5.0E-01 5.0E+00
0/11 1.2E+00 5.0E-01 2.5E+00
0/11 1.2E+00 5.0E-01 2.5E+00
0/11 1.2E+00 5.0E-01 2.5E+00
0/11 1.2E+00 5.0E-01 2.5E+00
0/11 2.1E+00 5.0E-01 5.0E+00
0/11 1.2E+00 5.0E-01 2.5E+00
0/11 2.4E+00 5.0E-01 5.0E+00
0/6 5.0E-01 5.0E-01 5.0E-01
0/12 1.2E+00 5.0E-01 2.5E+00
Weber River - Reach D
DF Avg Min Max
0/17 2.8E+00 5.0E-02 5.0E+00
0/9 5.0E+00 5.0E+00 5.0E+00
0/17 3.1E+00 7.5E-01 5.0E+00
0/19 2.8E+00 5.0E-01 5.0E+00
0/9 5.0E+00 5.0E+00 5.0E+00
0/17 3.1E+00 l.OE+00 5.0E+00
0/9 5.0E+00 5.0E+00 5.0E+00
0/17 3.1E+00 7.5E-01 5.0E+00
0/9 5.0E+00 5.0E+00 5.0E+00
0/17 3.1E+00 7.5E-01 5.0E+00
1/17 6.2E+00 8.8E-01 1.3E+01
0/17 2.9E+00 5.0E-01 5.0E+00
0/12 4.3E+00 5.0E-01 5.0E+00
0/20 1.5E+00 5.0E-01 2.5E+00
0/20 1.5E+00 5.0E-01 2.5E+00
0/20 1.5E+00 5.0E-01 2.5E+00
0/20 1.5E+00 5.0E-01 2.5E+00
0/2 5.0E-01 5.0E-01 5.0E-01
0/2 5.0E-01 5.0E-01 5.0E-01
0/2 5.0E-01 5.0E-01 5.0E-01
0/20 3.2E+00 5.0E-01 5.0E+00
0/2 5.0E-01 5.0E-01 5.0E-01
0/12 4.3E+00 5.0E-01 5.0E+00
0/20 1.5E+00 5.0E-01 2.5E+00
0/18 1.8E+00 l.OE+00 2.5E+00
0/20 1.5E+00 5.0E-01 2.5E+00
0/2 5.0E-01 5.0E-01 5.0E-01
0/2 5.0E-01 5.0E-01 5.0E-01
0/10 1.5E+02 1.5E+02 1.5E+02
0/2 5.0E-01 5.0E-01 5.0E-01
0/10 5.0E+00 5.0E+00 5.0E+00
0/10 5.0E+00 5.0E+00 5.0E+00
0/2 5.0E-01 5.0E-01 5.0E-01
0/12 4.3E+00 l.OE+00 5.0E+00
0/10 5.0E+00 5.0E+00 5.0E+00
0/2 5.0E-01 5.0E-01 5.0E-01
4/20 2.8E+02 1.8E+00 4.0E+03
0/18 1.5E+01 2.5E+00 2.5E+01
0/10 5.0E+01 5.0E+01 5.0E+01
0/10 2.5E+01 2.5E+01 2.5E+01
0/20 1.5E+00 5.0E-01 2.5E+00
0/2 5.0E-01 5.0E-01 5.0E-01
0/20 1.5E+00 5.0E-01 2.5E+00
0/20 1.5E+00 5.0E-01 2.5E+00
0/20 2.8E+00 5.0E-01 5.0E+00
0/20 1.5E+00 5.0E-01 2.5E+00
0/20 1.5E+00 5.0E-01 2.5E+00
0/20 1.5E+00 5.0E-01 2.5E+00
0/20 1.5E+00 5.0E-01 2.5E+00
0/20 2.8E+00 5.0E-01 5.0E+00
0/20 1.5E+00 5.0E-01 2.5E+00
0/20 2.9E+00 5.0E-01 5.0E+00
0/8 5.0E-01 5.0E-01 5.0E-01
0/22 1.4E+00 5.0E-01 2.5E+00
Buena Ventura Park Pond
DF Avg Min Max
0/4 1.4E+00 1.5E-01 5.0E+00
0/1 5.0E+00 5.0E+00 5.0E+00
0/4 2.0E+00 l.OE+00 5.0E+00
0/5 1.7E+00 5.0E-01 5.0E+00
0/1 5.0E+00 5.0E+00 5.0E+00
0/4 2.0E+00 l.OE+00 5.0E+00
0/1 5.0E+00 5.0E+00 5.0E+00
0/4 2.0E+00 l.OE+00 5.0E+00
0/1 5.0E+00 5.0E+00 5.0E+00
0/4 2.0E+00 l.OE+00 5.0E+00
0/4 2.0E+00 l.OE+00 5.0E+00
0/4 1.6E+00 5.0E-01 5.0E+00
0/1 5.0E-01 5.0E-01 5.0E-01
0/4 5.0E-01 5.0E-01 5.0E-01
0/4 5.0E-01 5.0E-01 5.0E-01
0/4 5.0E-01 5.0E-01 5.0E-01
0/4 5.0E-01 5.0E-01 5.0E-01
0/1 5.0E-01 5.0E-01 5.0E-01
0/1 5.0E-01 5.0E-01 5.0E-01
0/1 5.0E-01 5.0E-01 5.0E-01
0/4 1.3E+00 5.0E-01 1.5E+00
0/1 5.0E-01 5.0E-01 5.0E-01
0/1 5.0E-01 5.0E-01 5.0E-01
0/4 5.0E-01 5.0E-01 5.0E-01
0/3 l.OE+00 l.OE+00 l.OE+00
0/4 5.0E-01 5.0E-01 5.0E-01
0/1 5.0E-01 5.0E-01 5.0E-01
0/1 5.0E-01 5.0E-01 5.0E-01
na na na na
0/1 5.0E-01 5.0E-01 5.0E-01
na na na na
0/3 l.OE+00 l.OE+00 l.OE+00
0/1 5.0E-01 5.0E-01 5.0E-01
0/4 2.1E+00 l.OE+00 2.5E+00
na na na na
0/1 5.0E-01 5.0E-01 5.0E-01
0/1 4.0E+00 4.0E+00 4.0E+00
0/3 2.5E+00 2.5E+00 2.5E+00
na na na na
0/3 2.5E+00 2.5E+00 2.5E+00
0/4 5.0E-01 5.0E-01 5.0E-01
0/1 5.0E-01 5.0E-01 5.0E-01
0/4 5.0E-01 5.0E-01 5.0E-01
0/4 5.0E-01 5.0E-01 5.0E-01
0/4 6.3E-01 5.0E-01 l.OE+00
0/4 5.0E-01 5.0E-01 5.0E-01
0/4 5.0E-01 5.0E-01 5.0E-01
0/4 5.0E-01 5.0E-01 5.0E-01
0/4 5.0E-01 5.0E-01 5.0E-01
0/4 5.0E-01 5.0E-01 5.0E-01
0/4 5.0E-01 5.0E-01 5.0E-01
0/4 5.0E-01 5.0E-01 5.0E-01
0/3 5.0E-01 5.0E-01 5.0E-01
0/5 5.0E-01 5.0E-01 5.0E-01
Reach Data Summ_SW.xls: Table Summ
1/13/2003
                                                                                                                                                                                                           Page 3 of 8

-------
                                                                                                    Appendix A-l
                                                                             Summary Statistics for Analytes in Site Surface Waters (ug/L)
                                                                            Baseline Ecological Risk Assessment for the Ogden Railyard Site
Type















Analyte
Dibrom om ethane
Dichlorodifluorom ethane
Dichloromethane
Ethyl Methacrylate
Ethylbenzene
Ethylene dibromide (EDB)
Hexane
lodom ethane
Isobutyl Alcohol
Isopropylbenzene
Methacrylonitrile
Methyl ethyl ketone (MEK)
Methyl isobutyl ketone (MIBK)
Methyl Methacrylate
Methyl-t-butyl ether (MTBE)
n-Butylbenzene
n-Propylbenzene
o-Xylene
sec-Butylbenzene
Styrene
tert-Butylbenzene
Tetrachloroethene
Toluene
trans- 1 ,2-Dichloroethene
trans- 1 ,3-Dichloropropene
trans- 1 ,4-Dichloro-2-Butene
Trichloroethene
Trichlorofluoromethane
Vinyl Acetate
Vinyl Chloride
Xylenes (Total)
Xylenes-p,m
Weber River - Reach A
DF Avg Min Max
0/2 5.0E-01 5.0E-01 5.0E-01
0/2 5.0E-01 5.0E-01 5.0E-01
0/5 5.0E-01 5.0E-01 5.0E-01
na na na na
0/5 5.0E-01 5.0E-01 5.0E-01
0/5 5.0E-01 5.0E-01 5.0E-01
0/3 5.0E-01 5.0E-01 5.0E-01
na na na na
na na na na
0/4 5.0E-01 5.0E-01 5.0E-01
0/3 l.OE+00 l.OE+00 l.OE+00
0/5 2.3E+00 2.0E+00 2.5E+00
0/5 1.9E+00 l.OE+00 2.5E+00
na na na na
0/2 5.0E-01 5.0E-01 5.0E-01
0/2 5.0E-01 5.0E-01 5.0E-01
0/2 5.0E-01 5.0E-01 5.0E-01
0/2 5.0E-01 5.0E-01 5.0E-01
0/2 5.0E-01 5.0E-01 5.0E-01
0/5 5.0E-01 5.0E-01 5.0E-01
0/2 5.0E-01 5.0E-01 5.0E-01
0/5 5.0E-01 5.0E-01 5.0E-01
0/5 5.0E-01 5.0E-01 5.0E-01
0/5 5.0E-01 5.0E-01 5.0E-01
0/5 5.0E-01 5.0E-01 5.0E-01
na na na na
0/5 5.0E-01 5.0E-01 5.0E-01
0/5 5.0E-01 5.0E-01 5.0E-01
0/3 5.0E-01 5.0E-01 5.0E-01
0/5 5.0E-01 5.0E-01 5.0E-01
0/3 1.5E+00 1.5E+00 1.5E+00
0/2 5.0E-01 5.0E-01 5.0E-01
Weber River - Reach B
DF Avg Min Max
0/14 4.7E+00 5.0E-01 5.0E+00
0/14 4.7E+00 5.0E-01 5.0E+00
12/17 6.0E+02 5.0E-01 5.8E+03
0/13 2.5E+01 2.5E+01 2.5E+01
1/17 1.9E+00 5.0E-01 2.5E+00
0/17 3.9E+00 5.0E-01 5.0E+00
0/3 5.0E-01 5.0E-01 5.0E-01
0/13 5.0E+00 5.0E+00 5.0E+00
0/13 5.0E+01 5.0E+01 5.0E+01
0/2 5.0E-01 5.0E-01 5.0E-01
0/16 4.3E+00 l.OE+00 5.0E+00
1/17 4.2E+00 2.0E+00 5.0E+00
1/17 4.1E+00 l.OE+00 5.0E+00
0/13 5.0E+00 5.0E+00 5.0E+00
0/1 5.0E-01 5.0E-01 5.0E-01
0/1 5.0E-01 5.0E-01 5.0E-01
0/1 5.0E-01 5.0E-01 5.0E-01
0/1 5.0E-01 5.0E-01 5.0E-01
0/1 5.0E-01 5.0E-01 5.0E-01
0/17 2.0E+00 5.0E-01 2.5E+00
0/1 5.0E-01 5.0E-01 5.0E-01
0/17 2.0E+00 5.0E-01 2.5E+00
0/17 2.0E+00 5.0E-01 2.5E+00
0/4 5.0E-01 5.0E-01 5.0E-01
0/17 2.0E+00 5.0E-01 2.5E+00
0/13 5.0E+00 5.0E+00 5.0E+00
0/17 2.0E+00 5.0E-01 2.5E+00
0/17 3.9E+00 5.0E-01 5.0E+00
0/16 4.2E+00 5.0E-01 5.0E+00
0/17 3.9E+00 5.0E-01 5.0E+00
0/16 2.3E+00 1.5E+00 2.5E+00
0/1 5.0E-01 5.0E-01 5.0E-01
Weber River - Reach C
DF Avg Min Max
0/5 4.1E+00 5.0E-01 5.0E+00
0/5 4.1E+00 5.0E-01 5.0E+00
3/11 l.OE+00 5.0E-01 2.5E+00
0/4 2.5E+01 2.5E+01 2.5E+01
0/11 1.2E+00 5.0E-01 2.5E+00
0/11 2.1E+00 5.0E-01 5.0E+00
0/6 5.0E-01 5.0E-01 5.0E-01
0/4 5.0E+00 5.0E+00 5.0E+00
0/4 5.0E+01 5.0E+01 5.0E+01
0/2 5.0E-01 5.0E-01 5.0E-01
0/10 2.6E+00 l.OE+00 5.0E+00
0/11 3.4E+00 2.0E+00 5.0E+00
0/11 3.3E+00 l.OE+00 5.0E+00
0/4 5.0E+00 5.0E+00 5.0E+00
0/1 5.0E-01 5.0E-01 5.0E-01
0/1 5.0E-01 5.0E-01 5.0E-01
0/1 5.0E-01 5.0E-01 5.0E-01
0/1 5.0E-01 5.0E-01 5.0E-01
0/1 5.0E-01 5.0E-01 5.0E-01
0/11 1.2E+00 5.0E-01 2.5E+00
0/1 5.0E-01 5.0E-01 5.0E-01
0/11 1.2E+00 5.0E-01 2.5E+00
0/11 1.2E+00 5.0E-01 2.5E+00
0/7 5.0E-01 5.0E-01 5.0E-01
0/11 1.2E+00 5.0E-01 2.5E+00
0/4 5.0E+00 5.0E+00 5.0E+00
0/11 1.2E+00 5.0E-01 2.5E+00
0/11 2.1E+00 5.0E-01 5.0E+00
0/10 2.3E+00 5.0E-01 5.0E+00
0/11 2.1E+00 5.0E-01 5.0E+00
0/10 1.9E+00 1.5E+00 2.5E+00
0/1 5.0E-01 5.0E-01 5.0E-01
Weber River - Reach D
DF Avg Min Max
0/12 4.3E+00 5.0E-01 5.0E+00
0/12 4.3E+00 5.0E-01 5.0E+00
7/20 4.9E+02 5.0E-01 5.6E+03
0/10 2.5E+01 2.5E+01 2.5E+01
0/20 1.5E+00 5.0E-01 2.5E+00
0/20 2.8E+00 5.0E-01 5.0E+00
0/8 5.0E-01 5.0E-01 5.0E-01
0/10 5.0E+00 5.0E+00 5.0E+00
0/10 5.0E+01 5.0E+01 5.0E+01
0/4 5.0E-01 5.0E-01 5.0E-01
0/18 3.2E+00 l.OE+00 5.0E+00
0/20 3.7E+00 2.0E+00 5.0E+00
0/20 3.6E+00 l.OE+00 5.0E+00
0/10 5.0E+00 5.0E+00 5.0E+00
0/2 5.0E-01 5.0E-01 5.0E-01
0/2 5.0E-01 5.0E-01 5.0E-01
0/2 5.0E-01 5.0E-01 5.0E-01
0/2 5.0E-01 5.0E-01 5.0E-01
0/2 5.0E-01 5.0E-01 5.0E-01
0/20 1.5E+00 5.0E-01 2.5E+00
0/2 5.0E-01 5.0E-01 5.0E-01
0/20 1.5E+00 5.0E-01 2.5E+00
0/20 1.5E+00 5.0E-01 2.5E+00
0/10 5.0E-01 5.0E-01 5.0E-01
0/20 1.5E+00 5.0E-01 2.5E+00
0/10 5.0E+00 5.0E+00 5.0E+00
0/20 1.5E+00 5.0E-01 2.5E+00
0/20 2.8E+00 5.0E-01 5.0E+00
0/18 3.0E+00 5.0E-01 5.0E+00
0/20 2.8E+00 5.0E-01 5.0E+00
0/18 2.1E+00 1.5E+00 2.5E+00
0/2 5.0E-01 5.0E-01 5.0E-01
Buena Ventura Park Pond
DF Avg Min Max
0/1 5.0E-01 5.0E-01 5.0E-01
0/1 5.0E-01 5.0E-01 5.0E-01
0/4 5.0E-01 5.0E-01 5.0E-01
na na na na
0/4 5.0E-01 5.0E-01 5.0E-01
0/4 5.0E-01 5.0E-01 5.0E-01
0/3 5.0E-01 5.0E-01 5.0E-01
na na na na
na na na na
0/2 5.0E-01 5.0E-01 5.0E-01
0/3 l.OE+00 l.OE+00 l.OE+00
0/1 2.0E+00 2.0E+00 2.0E+00
0/4 2.1E+00 l.OE+00 2.5E+00
na na na na
0/1 5.0E-01 5.0E-01 5.0E-01
0/1 5.0E-01 5.0E-01 5.0E-01
0/1 5.0E-01 5.0E-01 5.0E-01
0/1 5.0E-01 5.0E-01 5.0E-01
0/1 5.0E-01 5.0E-01 5.0E-01
0/4 5.0E-01 5.0E-01 5.0E-01
0/1 5.0E-01 5.0E-01 5.0E-01
0/4 5.0E-01 5.0E-01 5.0E-01
0/4 5.0E-01 5.0E-01 5.0E-01
0/4 5.0E-01 5.0E-01 5.0E-01
0/4 5.0E-01 5.0E-01 5.0E-01
na na na na
0/4 5.0E-01 5.0E-01 5.0E-01
0/4 5.0E-01 5.0E-01 5.0E-01
0/3 5.0E-01 5.0E-01 5.0E-01
0/4 5.0E-01 5.0E-01 5.0E-01
0/3 1.5E+00 1.5E+00 1.5E+00
0/1 5.0E-01 5.0E-01 5.0E-01
Reach Data Summ_SW.xls: Table Summ
1/13/2003
                                                                                                                                                                                                           Page 4 of 8

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                                                                                                                           Appendix A-l
                                                                                                   Summary Statistics for Analytes in Site Surface Waters (ug/L)
                                                                                                   Baseline Ecological Risk Assessment for the Ogden Kailyard Site
T











»
3
a



















1
is
1


















K
Anal te

Aluminum
Antimony
Arsenic
Barium
Beryllium
Cadmium
Calcium
Chromium
Cobalt
Copper
Iron
Lead
Magnesium
Manganese
Mercury
Nickel
Potassium
Selenium
Silver
Sodium
Thallium
Vanadium
Zinc
4,4'-DDD
4,4'-DDE
4,4'-DDT
Aldrin
alpha-BHC
beta-BHC
Chlordane
delta-BHC
Dieldrin
Endosulfan I
Endosulfan II
Endosulfan Sulfate
Endrin
Endrin Aldehyde
gamma-BHC (Lindane)
Heptachlor
Heptachlor Epoxide
Isodrin
Kepone
Methoxychlor
Toxaphene
2-Chloronaphthalene
1 -M ethylnaphthalene
2-M ethylnaphthalene
Acenaphthene
Acenaphthylene
Anihne
Anthracene
Benzo [a] anthracene
Benzo [ajpyrene
Benzo [b] fluoranthene
21st Street Pond
DF Avg Min Max
13/16 2.0E+02 2.2E+01 8.4E+02
0/16 1.6E+00 1.1E+00 1.7E+00
0/16 4.5E+00 1.1E+00 4.8E+00
16/16 4.4E+01 3.4E+01 6.7E+01
0/16 1.5E-01 9.0E-02 l.OE+00
13/16 9.6E-01 1.4E-01 2.9E+00
16/16 4.0E+04 3.5E+04 5.7E+04
13/16 1.5E+00 2.7E-01 7.4E+00
0/16 8.8E-01 6.0E-01 5.0E+00
15/16 3. OE+00 1.6E+00 5. OE+00
16/16 4.0E+02 2.2E+02 7.0E+02
2/16 2.7E+00 9.5E-01 2.7E+01
16/16 1.4E+04 1.2E+04 1.9E+04
16/16 7.8E+01 4.2E+01 l.OE+02
0/16 3.4E-02 3.0E-02 l.OE-01
15/16 1.5E+01 1.7E+00 2.0E+02
16/16 4.6E+03 3.3E+03 8.5E+03
2/16 2.1E+00 1.1E+00 5.2E+00
7/16 9.2E-01 5.0E-01 2.5E+00
16/16 3.0E+04 2.1E+04 5.6E+04
0/16 4.6E+00 1.1E+00 4.9E+00
0/16 2.4E+00 2.2E+00 5. OE+00
2/16 1.8E+02 4.5E+00 2.8E+03
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
0/2 5.0E+00 5.0E+00 5.0E+00
0/15 1 .OE+00 1 .OE+00 1 .OE+00
2/21 1.2E+01 5.0E-01 2.1E+02
7/21 9.5E+00 2.0E-01 1.6E+02
3/21 1.4E+00 l.OE-01 l.OE+01
0/19 8.9E-01 5.0E-01 l.OE+00
2/21 2.1E+00 8.0E-01 1.6E+01
2/21 1.3E+00 9.0E-02 5. OE+00
2/21 1.2E+00 l.OE-01 5.0E+00
1/21 1.3E+00 l.OE-01 5. OE+00
Ogden River - Reach A
DF Avg Min Max
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
Ogden River - Reach B Ogden River - Reach C
DF Avg Min Max
4/4 3.9E+02 1.8E+02 7.7E+02
0/4 1 .5E+00 1 . 1E+00 1 .7E+00
0/5 3.3E+00 l.OE+00 4.8E+00
5/5 4.6E+01 3.8E+01 5.8E+01
0/4 3.2E-01 9.0E-02 l.OE+00
3/5 1.2E+00 5.0E-01 2.5E+00
4/4 4.1E+04 4.0E+04 4.2E+04
3/5 2.3E+00 7.0E-01 5. OE+00
0/4 1.7E+00 6.0E-01 5.0E+00
3/4 4.2E+00 2.1E+00 6.3E+00
4/4 4.4E+02 2.8E+02 5.6E+02
2/5 1.9E+00 9.5E-01 4.7E+00
4/4 1.1E+04 l.OE+04 1.1E+04
4/4 4.7E+01 3.8E+01 5.7E+01
0/5 5.4E-01 3.0E-02 2.5E+00
3/4 3. OE+00 1.8E+00 5. OE+00
4/4 2.5E+03 2.1E+03 2.8E+03
1/5 2.3E+00 1 . 1E+00 4.3E+00
1/5 1.9E+00 5.0E-01 5.0E+00
4/4 1 .5E+04 1 .4E+04 1 .7E+04
0/4 3.9E+00 1.1E+00 4.9E+00
0/4 2.9E+00 2.2E+00 5. OE+00
1/4 6.2E+00 4.5E+00 1.1E+01
0/1 5.0E-02 5.0E-02 5.0E-02
0/1 5.0E-02 5.0E-02 5.0E-02
0/1 5.0E-02 5.0E-02 5.0E-02
0/1 2.5E-02 2.5E-02 2.5E-02
0/1 2.5E-02 2.5E-02 2.5E-02
0/1 2.5E-02 2.5E-02 2.5E-02
0/1 2.5E-01 2.5E-01 2.5E-01
0/1 2.5E-02 2.5E-02 2.5E-02
0/1 5.0E-02 5.0E-02 5.0E-02
0/1 2.5E-02 2.5E-02 2.5E-02
0/1 5.0E-02 5.0E-02 5.0E-02
0/1 5.0E-02 5.0E-02 5.0E-02
0/1 5.0E-02 5.0E-02 5.0E-02
0/1 5.0E-02 5.0E-02 5.0E-02
0/1 2.5E-02 2.5E-02 2.5E-02
0/1 2.5E-02 2.5E-02 2.5E-02
0/1 2.5E-02 2.5E-02 2.5E-02
0/1 2.5E-02 2.5E-02 2.5E-02
0/1 5.0E-02 5.0E-02 5.0E-02
0/1 2.5E-01 2.5E-01 2.5E-01
0/1 5.0E-01 5.0E-01 5.0E-01
0/2 5.0E+00 5.0E+00 5.0E+00
0/3 1 .OE+00 1 .OE+00 1 .OE+00
0/5 2.6E+00 l.OE+00 5.0E+00
0/8 1.8E+00 5.0E-01 5. OE+00
0/8 1.6E+00 5.0E-01 5.0E+00
0/3 1 .OE+00 1 .OE+00 1 .OE+00
0/8 2.0E+00 l.OE+00 5.0E+00
0/8 2. OE+00 l.OE+00 5. OE+00
0/8 1.8E+00 5.0E-01 5.0E+00
0/8 2. OE+00 l.OE+00 5. OE+00
DF Avg Min Max
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
Reach Data Summ_SW.xls: Table Summ
1/13/2003
                                                                                                                                                                                                           Page 5 of 8

-------
                                                                                                                           Appendix A-l
                                                                                                   Summary Statistics for Analytes in Site Surface Waters (ug/L)
                                                                                                   Baseline Ecological Risk Assessment for the Ogden Kailyard Site
T

a












CQ




Petroleum
Hydrocarbons






















-,
O
w










Anal te

Benzo [g,h,i]perylene
Benzo [k] fluoranthene
Chrysene
Dibenz [a,h] anthracene
Fluoranthene
Fluorene
Indeno [ 1 ,2,3 -c,d]pyrene
Naphthalene
Phenanthrene
Pyrene
Aroclor-1016
Aroclor-1221
Aroclor-1232

Aroclor-1242
Aroclor-1248
Aroclor-1254
Aroclor-1260
Diesel fuel
Total Petroleum Hydrocarbons (TPH)
1 ,2,4-Trichlorobenzene
1 ,2-Dichlorobenzene
1 ,3 -Dichlorobenzene
1 ,4-Dichlorobenzene
2,4,5 -Trichlorophenol
2,4,6-Trichlorophenol
2,4-Dichlorophenol
2,4-Dim ethylphenol
2,4-Dinitrophenol
2,4-Dinitrotoluene
2,6-Dinitrotoluene
2-Chlorophenol
2-M ethylphenol (o-Cresol)
2-Nitroaniline
2-Nitrophenol
3,3'-Dichlorobenzidine
3-Nitroaniline
4,6-Dinitro-o-cresol
4-Brom ophenyl-phenyl ether
4-Chloro-3-Methylphenol
4-Chloroaniline
4-Chlorophenyl-phenylether
4-M ethylphenol (p-Cresol)
4-Nitroaniline
4-Nitrophenol
Benzyl alcohol
bis (2-Chloroethoxy)m ethane
bis (2-Chloroethyl)ether
bis(2-Chloroisopropyl)ether
bis (2-Ethylhexyl)phthalate
bis (n-octyl)phthalate
Butylbenzylphthalate
Carbazole
Dibenzofuran
Dibutylphthalate
21st Street Pond
DF Avg Min Max
0/21 1.4E+00 l.OE+00 5.0E+00
2/21 1.3E+00 l.OE-01 5. OE+00
2/21 1.3E+00 2.0E-01 5.0E+00
0/21 1.4E+00 l.OE+00 5. OE+00
5/21 1.5E+00 7.0E-02 6.0E+00
2/21 4.4E+00 5.0E-01 6.2E+01
1/21 1.4E+00 l.OE+00 5.0E+00
3/22 2.7E+01 2.0E-01 5.2E+02
3/21 5.5E+00 2.0E-01 8.4E+01
5/21 1.7E+00 8.0E-02 l.OE+01
0/4 1.5E-03 6.0E-04 2.4E-03
na na na na
na na na na

na na na na
na na na na
na na na na
1/4 1.4E-03 1.2E-03 1.7E-03
0/1 2.5E+02 2.5E+02 2.5E+02
na na na na
0/22 1.3E+00 5.0E-01 5. OE+00
0/22 1.3E+00 5.0E-01 5. OE+00
0/3 3.5E+00 5.0E-01 5. OE+00
0/22 1.3E+00 5.0E-01 5. OE+00
0/2 8.8E+00 5. OE+00 1.3E+01
0/2 5.0E+00 5.0E+00 5.0E+00
0/2 5. OE+00 5. OE+00 5. OE+00
1/11 1.3E+00 5.0E-01 5.0E+00
0/2 8.8E+00 5. OE+00 1.3E+01
0/21 1.3E+00 5.0E-01 5.0E+00
0/21 9.3E-01 5.0E-01 5. OE+00
0/2 5.0E+00 5.0E+00 5.0E+00
0/21 1.3E+00 5.0E-01 5. OE+00
0/2 8.8E+00 5.0E+00 1.3E+01
0/2 5. OE+00 5. OE+00 5. OE+00
0/1 1 1 .7E+00 1 .OE+00 5.0E+00
0/2 8.8E+00 5. OE+00 1.3E+01
0/21 5.4E+00 5.0E+00 1.3E+01
0/1 5. OE+00 5. OE+00 5. OE+00
0/2 5.0E+00 5.0E+00 5.0E+00
0/2 5. OE+00 5. OE+00 5. OE+00
0/2 5.0E+00 5.0E+00 5.0E+00
0/21 9.3E-01 5.0E-01 5. OE+00
0/2 8.8E+00 5.0E+00 1.3E+01
0/2 8.8E+00 5. OE+00 1.3E+01
0/1 5.0E+00 5.0E+00 5.0E+00
0/2 5. OE+00 5. OE+00 5. OE+00
0/21 1.3E+00 5.0E-01 5.0E+00
0/6 2.3E+00 l.OE+00 5. OE+00
0/21 6.4E-01 4.5E-02 5.0E+00
0/21 1.4E+00 l.OE+00 5. OE+00
1/21 9.9E-01 5.0E-02 5.0E+00
2/21 3.3E+00 5.0E-01 7. OE+00
0/2 5.0E+00 5.0E+00 5.0E+00
0/21 7.0E-01 l.OE-01 5. OE+00
Ogden River - Reach A
DF Avg Min Max
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na

na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
Ogden River - Reach B Ogden River - Reach C
DF Avg Min Max
0/8 2.0E+00 l.OE+00 5.0E+00
0/8 2. OE+00 l.OE+00 5. OE+00
0/8 1.8E+00 5.0E-01 5.0E+00
0/8 2. OE+00 l.OE+00 5. OE+00
0/8 2.0E+00 l.OE+00 5.0E+00
0/8 1.8E+00 5.0E-01 5. OE+00
0/8 2.0E+00 l.OE+00 5.0E+00
0/9 1.8E+00 5.0E-01 5. OE+00
0/8 1.8E+00 5.0E-01 5.0E+00
0/8 2. OE+00 l.OE+00 5. OE+00
0/4 6.3E-02 l.OE-03 2.5E-01
0/1 2.5E-01 2.5E-01 2.5E-01
0/1 2.5E-01 2.5E-01 2.5E-01

0/1 2.5E-01 2.5E-01 2.5E-01
0/1 2.5E-01 2.5E-01 2.5E-01
0/1 2.5E-01 2.5E-01 2.5E-01
0/4 6.3E-02 5.0E-04 2.5E-01
na na na na
na na na na
0/6 2.3E+00 5.0E-01 5. OE+00
0/6 2.3E+00 5.0E-01 5.0E+00
0/3 3.5E+00 5.0E-01 5. OE+00
0/6 2.3E+00 5.0E-01 5.0E+00
0/2 8.8E+00 5. OE+00 1.3E+01
0/2 5.0E+00 5.0E+00 5.0E+00
0/2 5. OE+00 5. OE+00 5. OE+00
0/4 2.8E+00 5.0E-01 5.0E+00
0/2 8.8E+00 5. OE+00 1.3E+01
0/5 2.6E+00 l.OE+00 5.0E+00
0/5 2.3E+00 5.0E-01 5. OE+00
0/2 5.0E+00 5.0E+00 5.0E+00
0/5 2.6E+00 l.OE+00 5. OE+00
0/2 8.8E+00 5.0E+00 1.3E+01
0/2 5. OE+00 5. OE+00 5. OE+00
0/4 3.0E+00 l.OE+00 5.0E+00
0/2 8.8E+00 5. OE+00 1.3E+01
0/5 6.5E+00 5.0E+00 1.3E+01
0/1 5. OE+00 5. OE+00 5. OE+00
0/2 5.0E+00 5.0E+00 5.0E+00
0/2 5. OE+00 5. OE+00 5. OE+00
0/2 5.0E+00 5.0E+00 5.0E+00
0/5 2.3E+00 5.0E-01 5. OE+00
0/2 8.8E+00 5.0E+00 1.3E+01
0/2 8.8E+00 5. OE+00 1.3E+01
0/1 5.0E+00 5.0E+00 5.0E+00
0/2 5. OE+00 5. OE+00 5. OE+00
0/5 2.6E+00 l.OE+00 5.0E+00
0/2 5. OE+00 5. OE+00 5. OE+00
0/5 2.1E+00 5.0E-02 5. OE+00
1/5 2.4E+00 2.0E-01 5. OE+00
0/5 2.2E+00 5.0E-02 5. OE+00
0/5 3.8E+00 3. OE+00 5. OE+00
0/2 5.0E+00 5.0E+00 5.0E+00
0/5 2.2E+00 2.0E-01 5. OE+00
DF Avg Min Max
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na

na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
Reach Data Summ_SW.xls: Table Summ
1/13/2003
                                                                                                                                                                                                           Page 6 of 8

-------
                                                                                                                           Appendix A-l
                                                                                                   Summary Statistics for Analytes in Site Surface Waters (ug/L)
                                                                                                   Baseline Ecological Risk Assessment for the Ogden Kailyard Site
T

















































U
>




Anal te

Diethylphthalate
Dimethylphthalate
Hexachlorobenzene
Hexachlorobutadiene
Hexachlorocyclopentadiene
Hexachloroethane
Isophorone
Nitrobenzene
N-Nitros odiphenylamine
n-Nitrosodipropylamine
Pentachlorophenol (PCP)
Phenol
1,1,1 ,2-Tetrachloroethane
1,1,1 -Trichloroethane
1 , 1 ,2,2-Tetrachloroethane
1 , 1 ,2-Trichloroethane
1 , 1 -Dichloroethane
1,1-Dichloroethene
1 , 1 -Dichloropropene
1,2,3-Trichlorobenzene
1,2,3-Trichloropropane
1 ,2,4-Trimethylbenzene
l,2-Dibromo-3-chloropropane (DBCP)
1 ,2-Dichloroethane
1 ,2-Dichloroethene
1 ,2-Dichloropropane
1,3,5-Trimethylbenzene
1 ,3 -Dichloropropane
1,4-Dioxane
2,2-Dichloropropane
2-Chloro-l,3-butadiene (Chloroprene)
2-Chloroethyl vinyl ether
2-Chlorotoluene
2-Hexanone
3-Chloropropene (Allyl Chloride)
4-Chlorotoluene
Acetone
Acetonitrile
Acrolein
Acrylonitrile
Benzene
Bromobenzene
Broniodichlorom ethane
Bromoform
Bromom ethane (Methyl bromide)
Carbon Bisulfide
Carbon Tetrachloride
Chlorobenzene
Chlorodibrom om ethane
Chloroethane (Ethyl chloride)
Chloroform
Chlorom ethane (Methyl chloride)
cis- 1 ,2-Dichloroethene
cis- 1 ,3 -Dichloropropene
21st Street Pond
DF Avg Min Max
0/21 9.0E-01 5.0E-02 5.0E+00
0/2 5.0E+00 5.0E+00 5.0E+00
0/21 1.3E+00 5.0E-01 5.0E+00
0/22 1.3E+00 5.0E-01 5.0E+00
0/2 5.0E+00 5.0E+00 5.0E+00
0/21 1.4E+00 l.OE+00 5.0E+00
0/2 5.0E+00 5.0E+00 5.0E+00
0/21 1.3E+00 5.0E-01 5.0E+00
0/2 5.0E+00 5.0E+00 5.0E+00
0/21 1.3E+00 5.0E-01 5.0E+00
2/21 1.7E+00 5.0E-01 1.3E+01
2/21 9.1E-01 l.OE-01 5.0E+00
0/4 3.9E+00 5.0E-01 5.0E+00
0/19 8.2E-01 5.0E-01 2.5E+00
0/19 8.2E-01 5.0E-01 2.5E+00
0/19 8.2E-01 5.0E-01 2.5E+00
0/19 8.2E-01 5.0E-01 2.5E+00
0/1 5.0E-01 5.0E-01 5.0E-01
0/1 5.0E-01 5.0E-01 5.0E-01
0/1 5.0E-01 5.0E-01 5.0E-01
0/19 2.0E+00 5.0E-01 5.0E+00
0/1 5.0E-01 5.0E-01 5.0E-01
0/4 3.9E+00 5.0E-01 5.0E+00
0/19 8.2E-01 5.0E-01 2.5E+00
0/18 1 .3E+00 1 .OE+00 2.5E+00
0/19 8.2E-01 5.0E-01 2.5E+00
0/1 5.0E-01 5.0E-01 5.0E-01
0/1 5.0E-01 5.0E-01 5.0E-01
0/3 1 .5E+02 1 .5E+02 1 .5E+02
0/1 5.0E-01 5.0E-01 5.0E-01
0/3 5.0E+00 5.0E+00 5.0E+00
0/18 1.7E+00 l.OE+00 5. OE+00
0/1 5.0E-01 5.0E-01 5.0E-01
0/19 2.8E+00 l.OE+00 5. OE+00
0/3 5.0E+00 5.0E+00 5.0E+00
0/1 5.0E-01 5.0E-01 5.0E-01
0/4 4.8E+00 4.0E+00 5.0E+00
0/18 6.3E+00 2.5E+00 2.5E+01
0/3 5.0E+01 5.0E+01 5.0E+01
0/18 6.3E+00 2.5E+00 2.5E+01
1/19 7.9E-01 5.0E-01 2.5E+00
0/1 5.0E-01 5.0E-01 5.0E-01
0/19 8.2E-01 5.0E-01 2.5E+00
0/19 8.2E-01 5.0E-01 2.5E+00
0/19 1.2E+00 5.0E-01 5.0E+00
0/19 8.2E-01 5.0E-01 2.5E+00
0/19 8.2E-01 5.0E-01 2.5E+00
0/19 8.2E-01 5.0E-01 2.5E+00
0/19 8.2E-01 5.0E-01 2.5E+00
0/19 1.2E+00 5.0E-01 5. OE+00
0/19 8.2E-01 5.0E-01 2.5E+00
0/19 1.2E+00 5.0E-01 5. OE+00
0/15 5.0E-01 5.0E-01 5.0E-01
0/20 8.0E-01 5.0E-01 2.5E+00
Ogden River - Reach A
DF Avg Min Max
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
Ogden River - Reach B Ogden River - Reach C
DF Avg Min Max
0/5 2.2E+00 l.OE-01 5.0E+00
0/2 5. OE+00 5. OE+00 5. OE+00
0/5 2.6E+00 l.OE+00 5.0E+00
0/6 2.3E+00 5.0E-01 5. OE+00
0/2 5.0E+00 5.0E+00 5.0E+00
0/5 2.6E+00 l.OE+00 5. OE+00
0/2 5.0E+00 5.0E+00 5.0E+00
0/5 2.6E+00 l.OE+00 5. OE+00
0/2 5.0E+00 5.0E+00 5.0E+00
0/5 2.6E+00 l.OE+00 5. OE+00
0/5 4.1E+00 l.OE+00 1.3E+01
0/5 2.3E+00 5.0E-01 5. OE+00
0/2 2.8E+00 5.0E-01 5. OE+00
0/8 7.5E-01 5.0E-01 2.5E+00
0/8 7.5E-01 5.0E-01 2.5E+00
0/8 7.5E-01 5.0E-01 2.5E+00
0/8 7.5E-01 5.0E-01 2.5E+00
0/1 5.0E-01 5.0E-01 5.0E-01
0/1 5.0E-01 5.0E-01 5.0E-01
0/1 5.0E-01 5.0E-01 5.0E-01
0/8 1.4E+00 5.0E-01 5.0E+00
0/1 5.0E-01 5.0E-01 5.0E-01
0/5 1.4E+00 5.0E-01 5.0E+00
0/8 7.5E-01 5.0E-01 2.5E+00
0/7 1 .2E+00 1 .OE+00 2.5E+00
0/8 7.5E-01 5.0E-01 2.5E+00
0/1 5.0E-01 5.0E-01 5.0E-01
0/1 5.0E-01 5.0E-01 5.0E-01
0/1 1 .5E+02 1 .5E+02 1 .5E+02
0/1 5.0E-01 5.0E-01 5.0E-01
0/1 5.0E+00 5.0E+00 5.0E+00
0/7 1 .8E+00 1 .OE+00 5. OE+00
0/1 5.0E-01 5.0E-01 5.0E-01
0/8 1.9E+00 5.0E-01 5. OE+00
0/1 5.0E+00 5.0E+00 5.0E+00
0/1 5.0E-01 5.0E-01 5.0E-01
1/3 3.3E+00 l.OE+00 5.0E+00
0/7 6.8E+00 2.5E+00 2.5E+01
0/1 5.0E+01 5.0E+01 5.0E+01
0/7 4.9E+00 5.0E-01 2.5E+01
0/8 7.5E-01 5.0E-01 2.5E+00
0/1 5.0E-01 5.0E-01 5.0E-01
0/8 7.5E-01 5.0E-01 2.5E+00
0/8 7.5E-01 5.0E-01 2.5E+00
0/8 1.1E+00 5.0E-01 5.0E+00
0/8 7.5E-01 5.0E-01 2.5E+00
0/8 7.5E-01 5.0E-01 2.5E+00
0/8 7.5E-01 5.0E-01 2.5E+00
0/8 7.5E-01 5.0E-01 2.5E+00
0/8 1.1E+00 5.0E-01 5. OE+00
0/8 7.5E-01 5.0E-01 2.5E+00
0/8 1.1E+00 5.0E-01 5. OE+00
0/6 5.0E-01 5.0E-01 5.0E-01
0/9 7.2E-01 5.0E-01 2.5E+00
DF Avg Min Max
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
Reach Data Summ_SW.xls: Table Summ
1/13/2003
                                                                                                                                                                                                           Page 7 of 8

-------
                                                                                                                           Appendix A-l
                                                                                                   Summary Statistics for Analytes in Site Surface Waters (ug/L)
                                                                                                   Baseline Ecological Risk Assessment for the Ogden Kailyard Site
Type
































Analyte
Dibroin om ethane
Dichlorodifluorom ethane
Dichloromethane
Ethyl Methacrylate
Ethylbenzene
Ethylene dibromide (EDB)
Hexane
lodom ethane
Isobutyl Alcohol
Is opropylbenzene
Methacrylonitrile
Methyl ethyl ketone (MEK)
Methyl isobutyl ketone (MIBK)
Methyl Methacrylate
Methyl-t-butyl ether (MTBE)
n-Butylbenzene
n-Propylbenzene
o-Xylene
sec-Butylbenzene
Styrene
tert-Butylbenzene
Tetrachloroethene
Toluene
trans- 1 ,2-Dichloroethene
trans- 1 ,3 -Dichloropropene
trans- 1 ,4-Dichloro-2-Butene
Trichloroethene
Trichlorofluoromethane
Vinyl Acetate
Vinyl Chloride
Xylenes (Total)
Xylenes-p,m
21st Street Pond
DF Avg Min Max
0/4 3.9E+00 5.0E-01 5.0E+00
1/4 3.5E+00 5.0E-01 5.0E+00
3/19 7.2E-01 5.0E-01 3.3E+00
0/3 2.5E+01 2.5E+01 2.5E+01
1/19 1.1E+00 5.0E-01 8.1E+00
0/19 1.2E+00 5.0E-01 5.0E+00
0/15 5.0E-01 5.0E-01 5.0E-01
0/3 5.0E+00 5.0E+00 5.0E+00
0/3 5.0E+01 5.0E+01 5.0E+01
0/2 5.0E-01 5.0E-01 5.0E-01
0/18 1.7E+00 l.OE+00 5.0E+00
0/4 4.3E+00 2.0E+00 5.0E+00
0/19 2.8E+00 l.OE+00 5.0E+00
0/3 5.0E+00 5.0E+00 5.0E+00
0/1 5.0E-01 5.0E-01 5.0E-01
0/1 5.0E-01 5.0E-01 5.0E-01
0/1 5.0E-01 5.0E-01 5.0E-01
0/1 5.0E-01 5.0E-01 5.0E-01
0/1 5.0E-01 5.0E-01 5.0E-01
0/19 8.2E-01 5.0E-01 2.5E+00
0/1 5.0E-01 5.0E-01 5.0E-01
0/19 8.2E-01 5.0E-01 2.5E+00
0/19 8.2E-01 5.0E-01 2.5E+00
0/16 5.0E-01 5.0E-01 5.0E-01
0/19 8.2E-01 5.0E-01 2.5E+00
0/3 5.0E+00 5.0E+00 5.0E+00
0/19 8.2E-01 5.0E-01 2.5E+00
0/19 1.2E+00 5.0E-01 5.0E+00
0/18 1.3E+00 5.0E-01 5.0E+00
0/19 1.2E+00 5.0E-01 5.0E+00
1/18 1 .8E+00 1 .5E+00 4.8E+00
0/1 5.0E-01 5.0E-01 5.0E-01
Ogden River - Reach A
DF Avg Min Max
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
Ogden River - Reach B Ogden River - Reach C
DF Avg Min Max
0/2 2.8E+00 5.0E-01 5.0E+00
0/2 2.8E+00 5.0E-01 5.0E+00
1/8 8.0E-01 5.0E-01 2.9E+00
0/1 2.5E+01 2.5E+01 2.5E+01
0/8 7.5E-01 5.0E-01 2.5E+00
0/8 1.1E+00 5.0E-01 5.0E+00
0/6 5.0E-01 5.0E-01 5.0E-01
0/1 5.0E+00 5.0E+00 5.0E+00
0/1 5.0E+01 5.0E+01 5.0E+01
0/2 5.0E-01 5.0E-01 5.0E-01
0/7 3.3E+00 l.OE+00 5.0E+00
0/5 2.0E+00 l.OE+00 5.0E+00
0/8 2.1E+00 l.OE+00 5.0E+00
0/1 5.0E+00 5.0E+00 5.0E+00
0/1 5.0E-01 5.0E-01 5.0E-01
0/1 5.0E-01 5.0E-01 5.0E-01
0/1 5.0E-01 5.0E-01 5.0E-01
0/1 5.0E-01 5.0E-01 5.0E-01
0/1 5.0E-01 5.0E-01 5.0E-01
0/8 7.5E-01 5.0E-01 2.5E+00
0/1 5.0E-01 5.0E-01 5.0E-01
0/8 7.5E-01 5.0E-01 2.5E+00
0/8 7.5E-01 5.0E-01 2.5E+00
0/7 5.0E-01 5.0E-01 5.0E-01
0/8 7.5E-01 5.0E-01 2.5E+00
0/1 5.0E+00 5.0E+00 5.0E+00
0/8 7.5E-01 5.0E-01 2.5E+00
0/8 1.1E+00 5.0E-01 5.0E+00
0/7 1.1E+00 5.0E-01 5.0E+00
0/8 1.1E+00 5.0E-01 5.0E+00
0/7 1.2E+00 5.0E-01 2.5E+00
0/1 5.0E-01 5.0E-01 5.0E-01
DF Avg Min Max
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
Reach Data Summ_SW.xls: Table Summ
1/13/2003
                                                                                                                                                                                                           Page 8 of 8

-------
                                                                                                            Appendix A-2
                                                                                       Summary Statistics for Analytes in Site Sediment (mg/kg)
                                                                                    Baseline Ecological Risk Assessment for the Ogden RailyardSite













VI
1
s





















u>
1
'&
R,





















Aluminum
Antimony
Arsenic
Barium
Beryllium
Cadmium
Calcium
Chromium
Cobalt
Copper
Iron
Lead
Magnesium
Manganese
Mercury
Nickel
Potassium
Selenium
Silver
Sodium
Thallium
Vanadium
Zinc
4,4'-DDD
4,4'-DDE
4,4'-DDT
Aldrin
alpha-BHC
beta-BHC
alpha-Chlordane
Atrazine
Caprolactam
Chlordane
delta-BHC
Dieldrin
Endosulfan I
Endosulfan II
Endosulfan Sulfate
Endrin
Endrin Aldehyde
Endrin ketone
gamma-BHC (Lindane)
gamma-Chlordane
Heptachlor
Heptachlor Epoxide
Isodrin
Kepone
Methoxychlor
Toxaphene
2-Chloronaphthalene
1-Methylnaphthalene
2-Methylnaphthalene
Acenaphthene
Acenaphthylene
Aniline
Anthracene
Weber River - Reach A

DF Avg Min Max
2/2 4.5E+03 3.0E+03 5.9E+03
0/2 4.5E+00 3.5E+00 5.5E+00
2/2 3.1E+00 2.2E+00 4.0E+00
2/2 1.7E+02 1.2E+02 2.2E+02
0/2 3.7E-01 2.9E-01 4.5E-01
1/2 6.2E-01 2.9E-01 9.6E-01
2/2 8.3E+04 5.6E+04 1.1E+05
2/2 9.1E+00 8.7E+00 9.4E+00
2/2 3.3E+00 2.5E+00 4.0E+00
2/2 1.3E+01 1.3E+01 1.3E+01
2/2 7.2E+03 5.7E+03 8.7E+03
2/2 4.3E+01 3.2E+01 5.3E+01
2/2 4.0E+03 2.7E+03 5.3E+03
2/2 3.1E+02 1.8E+02 4.4E+02
1/2 8.0E-02 3.0E-02 1.3E-01
2/2 6.0E+00 4.6E+00 7.4E+00
2/2 9.7E+02 6.3E+02 1.3E+03
0/2 4.0E-01 3.2E-01 4.9E-01
0/2 3.7E-01 2.9E-01 4.5E-01
2/2 2.2E+02 1.5E+02 2.8E+02
0/2 4.0E-01 3.2E-01 4.9E-01
2/2 1.1E+01 8.1E+00 1.3E+01
2/2 9.9E+01 6.8E+01 1.3E+02
0/2 4.6E-03 3.2E-03 6.0E-03
0/2 4.6E-03 3.2E-03 6.0E-03
0/2 4.6E-03 3.2E-03 6.0E-03
0/2 4.6E-03 3.2E-03 6.0E-03
0/2 4.6E-03 3.2E-03 6.0E-03
0/2 4.6E-03 3.2E-03 6.0E-03
0/2 4.6E-03 3.2E-03 6.0E-03
na na na na
na na na na
na na na na
0/2 4.6E-03 3.2E-03 6.0E-03
0/2 4.6E-03 3.2E-03 6.0E-03
0/2 4.6E-03 3.2E-03 6.0E-03
0/2 4.6E-03 3.2E-03 6.0E-03
0/2 4.6E-03 3.2E-03 6.0E-03
0/2 4.6E-03 3.2E-03 6.0E-03
0/2 4.6E-03 3.2E-03 6.0E-03
0/2 4.6E-03 3.2E-03 6.0E-03
0/2 4.6E-03 3.2E-03 6.0E-03
0/2 4.6E-03 3.2E-03 6.0E-03
0/2 4.6E-03 3.2E-03 6.0E-03
0/2 4.6E-03 3.2E-03 6.0E-03
na na na na
na na na na
0/2 4.6E-03 3.2E-03 6.0E-03
0/2 1.1E-01 8.0E-02 1.5E-01
0/2 2.3E+00 1.6E+00 3.0E+00
na na na na
0/2 2.3E+00 1.6E+00 3.0E+00
0/2 2.3E+00 1.6E+00 3.0E+00
0/2 2.3E+00 1.6E+00 3.0E+00
na na na na
0/2 2.3E+00 1.6E+00 3.0E+00
Weber River - Reach B

DF Avg Min Max
2/2 3.8E+03 3.4E+03 4.2E+03
0/2 3.2E+00 2.5E+00 3.9E+00
2/10 2.6E+00 2.5E+00 3.5E+00
10/10 5.9E+01 1.9E+01 1.6E+02
0/2 2.7E-01 2.1E-01 3.3E-01
3/10 3.6E-01 2.1E-01 6.5E-01
2/2 5.8E+04 3.7E+04 7.9E+04
10/10 5.0E+00 3.7E+00 7.3E+00
2/2 2.8E+00 2.4E+00 3.1E+00
2/2 8.5E+00 7.0E+00 l.OE+01
2/2 6.5E+03 6.2E+03 6.7E+03
10/10 2.1E+01 6.9E+00 3.7E+01
2/2 3.7E+03 3.1E+03 4.2E+03
2/2 2.4E+02 1.5E+02 3.2E+02
2/10 2.7E-02 2.0E-02 6.0E-02
2/2 4.9E+00 4.2E+00 5.5E+00
2/2 7.5E+02 6.3E+02 8.7E+02
0/10 2.1E+00 2.7E-01 2.5E+00
8/10 5.7E-01 2.1E-01 l.OE+00
2/2 2.0E+02 1.9E+02 2.1E+02
0/2 2.9E-01 2.7E-01 3.2E-01
2/2 9.3E+00 8.5E+00 l.OE+01
2/2 7.5E+01 5.7E+01 9.3E+01
0/10 7.0E-03 2.6E-03 8.0E-03
0/10 7.0E-03 2.6E-03 8.0E-03
0/10 7.0E-03 2.6E-03 8.0E-03
0/10 3.8E-03 2.6E-03 4.0E-03
0/10 3.8E-03 2.6E-03 4.0E-03
0/10 3.8E-03 2.6E-03 4.0E-03
0/2 3.2E-03 2.6E-03 3.8E-03
na na na na
na na na na
0/8 4.0E-02 4.0E-02 4.0E-02
0/10 3.8E-03 2.6E-03 4.0E-03
0/10 7.0E-03 2.6E-03 8.0E-03
0/10 3.8E-03 2.6E-03 4.0E-03
0/10 7.0E-03 2.6E-03 8.0E-03
0/10 7.0E-03 2.6E-03 8.0E-03
0/10 7.0E-03 2.6E-03 8.0E-03
0/10 7.0E-03 2.6E-03 8.0E-03
0/2 3.2E-03 2.6E-03 3.8E-03
0/10 3.8E-03 2.6E-03 4.0E-03
0/2 3.2E-03 2.6E-03 3.8E-03
0/10 3.8E-03 2.6E-03 4.0E-03
0/10 3.8E-03 2.6E-03 4.0E-03
0/8 4.0E-03 4.0E-03 4.0E-03
0/8 8.0E-03 8.0E-03 8.0E-03
0/10 3.3E-02 2.6E-03 4.0E-02
0/10 8.0E-02 6.5E-02 9.5E-02
0/10 4.5E-01 1.7E-01 1.9E+00
na na na na
0/10 4.5E-01 1.7E-01 1.9E+00
0/10 4.5E-01 1.7E-01 1.9E+00
0/10 4.5E-01 1.7E-01 1.9E+00
na na na na
0/10 4.5E-01 1.7E-01 1.9E+00
Weber River - Reach C

DF Avg Min Max
1/1 5.5E+03 5.5E+03 5.5E+03
0/1 4.3E+00 4.3E+00 4.3E+00
1/5 2.9E+00 2.5E+00 4.6E+00
5/5 7.8E+01 2.8E+01 2.3E+02
0/1 3.6E-01 3.6E-01 3.6E-01
2/5 4.2E-01 2.5E-01 6.3E-01
1/1 1.1E+05 1.1E+05 1.1E+05
5/5 5.3E+00 3.3E+00 9.7E+00
1/1 3.5E+00 3.5E+00 3.5E+00
1/1 1.6E+01 1.6E+01 1.6E+01
1/1 9.0E+03 9.0E+03 9.0E+03
5/5 2.4E+01 1.3E+01 4.9E+01
1/1 5.2E+03 5.2E+03 5.2E+03
1/1 4.5E+02 4.5E+02 4.5E+02
1/5 3.4E-02 2.0E-02 9.0E-02
1/1 7.3E+00 7.3E+00 7.3E+00
1/1 1.1E+03 1.1E+03 1.1E+03
0/5 2.1E+00 4.1E-01 2.5E+00
0/5 2.7E-01 2.5E-01 3.6E-01
1/1 2.4E+02 2.4E+02 2.4E+02
0/1 4.1E-01 4.1E-01 4.1E-01
1/1 1.3E+01 1.3E+01 1.3E+01
1/1 1.3E+02 1.3E+02 1.3E+02
0/5 7.2E-03 4.1E-03 8.0E-03
1/5 7.9E-03 7.3E-03 8.0E-03
0/5 7.2E-03 4.1E-03 8.0E-03
0/5 4.0E-03 4.0E-03 4.1E-03
0/5 4.0E-03 4.0E-03 4.1E-03
0/5 4.0E-03 4.0E-03 4.1E-03
0/1 4.1E-03 4.1E-03 4.1E-03
na na na na
na na na na
0/4 4.0E-02 4.0E-02 4.0E-02
0/5 4.0E-03 4.0E-03 4.1E-03
0/5 7.2E-03 4.1E-03 8.0E-03
0/5 4.0E-03 4.0E-03 4.1E-03
0/5 7.2E-03 4.1E-03 8.0E-03
0/5 7.2E-03 4.1E-03 8.0E-03
0/5 7.2E-03 4.1E-03 8.0E-03
0/5 7.2E-03 4.1E-03 8.0E-03
0/1 4.1E-03 4.1E-03 4.1E-03
0/5 4.0E-03 4.0E-03 4.1E-03
0/1 4.1E-03 4.1E-03 4.1E-03
0/5 4.0E-03 4.0E-03 4.1E-03
0/5 4.0E-03 4.0E-03 4.1E-03
0/4 4.0E-03 4.0E-03 4.0E-03
0/4 8.0E-03 8.0E-03 8.0E-03
0/5 3.3E-02 4.1E-03 4.0E-02
0/5 8.5E-02 8.0E-02 1.1E-01
0/5 5.4E-01 1.7E-01 2.1E+00
na na na na
0/5 5.4E-01 1.7E-01 2.1E+00
0/5 5.4E-01 1.7E-01 2.1E+00
0/5 5.4E-01 1.7E-01 2.1E+00
na na na na
0/5 5.4E-01 1.7E-01 2.1E+00
Weber River - Reach D

DF Avg Min Max
5/5 4.0E+03 2.5E+03 6.1E+03
0/5 3.1E+00 2.3E+00 4.6E+00
5/10 2.8E+00 1.7E+00 4.8E+00
10/10 8.4E+01 3.3E+01 1.9E+02
0/5 2.6E-01 1.9E-01 3.8E-01
4/10 4.0E-01 2.2E-01 9.3E-01
5/5 4.4E+04 2.0E+04 7.7E+04
9/10 6.3E+00 5.0E-01 1.1E+01
5/5 2.9E+00 2.2E+00 4.2E+00
5/5 1.4E+01 6.8E+00 2.5E+01
5/5 7.0E+03 5.1E+03 9.7E+03
9/10 3.1E+01 l.OE+00 6.4E+01
5/5 3.9E+03 2.4E+03 5.3E+03
5/5 2.2E+02 9.7E+01 3.4E+02
6/10 5.3E-02 2.0E-02 1.2E-01
5/5 5.8E+00 4.5E+00 8.4E+00
5/5 8.0E+02 5.5E+02 1.2E+03
0/10 1.4E+00 1.9E-01 2.5E+00
0/10 2.5E-01 1.9E-01 3.8E-01
5/5 1.7E+02 1.1E+02 2.7E+02
0/5 2.9E-01 1.9E-01 4.8E-01
5/5 9.6E+00 7.1E+00 1.4E+01
5/5 9.0E+01 5.4E+01 1.4E+02
0/15 4.7E-03 2.2E-03 8.0E-03
0/15 4.7E-03 2.2E-03 8.0E-03
0/15 4.7E-03 2.2E-03 8.0E-03
0/15 2.9E-03 1.1E-03 5.5E-03
0/15 2.9E-03 1.1E-03 5.5E-03
0/15 2.9E-03 1.1E-03 5.5E-03
0/10 2.3E-03 1.1E-03 5.5E-03
na na na na
na na na na
0/5 4.0E-02 4.0E-02 4.0E-02
0/15 2.9E-03 1.1E-03 5.5E-03
0/15 4.7E-03 2.2E-03 8.0E-03
0/15 2.9E-03 1.1E-03 5.5E-03
0/15 4.7E-03 2.2E-03 8.0E-03
0/15 4.7E-03 2.2E-03 8.0E-03
0/15 4.7E-03 2.2E-03 8.0E-03
0/15 4.7E-03 2.2E-03 8.0E-03
0/10 3.0E-03 2.2E-03 5.5E-03
0/15 2.9E-03 1.1E-03 5.5E-03
0/10 2.3E-03 1.1E-03 5.5E-03
0/15 2.9E-03 1.1E-03 5.5E-03
0/15 2.9E-03 1.1E-03 5.5E-03
0/5 4.0E-03 4.0E-03 4.0E-03
0/5 8.0E-03 8.0E-03 8.0E-03
0/15 1.9E-02 2.3E-03 4.0E-02
0/15 l.OE-01 5.5E-02 1.9E-01
0/10 9.1E-01 1.7E-01 2.9E+00
na na na na
0/10 9.1E-01 1.7E-01 2.9E+00
0/10 9.1E-01 1.7E-01 2.9E+00
0/10 9.1E-01 1.7E-01 2.9E+00
na na na na
0/10 9.1E-01 1.7E-01 2.9E+00
Buena Ventura Park Pond

DF Avg Min Max
4/4 6.1E+03 3.0E+03 1.2E+04
2/4 1.5E+00 4.8E-01 3.2E+00
4/4 3.5E+00 1.8E+00 4.8E+00
2/4 9.5E+01 2.7E+01 2.5E+02
3/4 2.3E-01 4.7E-02 4.6E-01
3/4 4.6E-01 2.0E-02 9.6E-01
4/4 4.0E+04 1.8E+04 9.6E+04
4/4 l.OE+01 7.0E+00 1.5E+01
4/4 3.3E+00 2.2E+00 5.5E+00
4/4 1.7E+01 7.9E+00 3.0E+01
4/4 7.3E+03 4.7E+03 1.2E+04
4/4 7.5E+01 3.2E+01 1.2E+02
4/4 5.4E+03 2.3E+03 7.6E+03
4/4 1.6E+02 8.5E+01 3.4E+02
4/4 2.4E-01 1.1E-01 3.9E-01
4/4 7.0E+00 3.2E+00 1.2E+01
4/4 1.5E+03 6.9E+02 3.2E+03
1/4 5.3E-01 2.2E-01 1.1E+00
1/4 4.6E-01 1.6E-01 1.2E+00
4/4 1.7E+02 l.OE+02 3.3E+02
0/4 8.2E-01 2.2E-01 1.4E+00
4/4 1.4E+01 9.0E+00 2.2E+01
4/4 1.2E+02 5.4E+01 1.8E+02
0/3 3.5E-03 2.6E-03 4.1E-03
0/3 3.5E-03 2.6E-03 4.1E-03
0/3 3.5E-03 2.6E-03 4.1E-03
0/3 2.2E-03 2.0E-03 2.6E-03
0/3 2.2E-03 2.0E-03 2.6E-03
0/3 2.2E-03 2.0E-03 2.6E-03
0/3 2.2E-03 2.0E-03 2.6E-03
0/2 2.4E+00 8.0E-01 4.1E+00
0/2 2.4E+00 8.0E-01 4.1E+00
na na na na
0/3 2.2E-03 2.0E-03 2.6E-03
0/3 3.5E-03 2.6E-03 4.1E-03
0/3 2.2E-03 2.0E-03 2.6E-03
0/3 3.5E-03 2.6E-03 4.1E-03
0/3 3.5E-03 2.6E-03 4.1E-03
0/3 3.5E-03 2.6E-03 4.1E-03
0/3 3.5E-03 2.6E-03 4.1E-03
0/3 3.5E-03 2.6E-03 4.1E-03
0/3 2.2E-03 2.0E-03 2.6E-03
0/3 2.2E-03 2.0E-03 2.6E-03
0/3 2.2E-03 2.0E-03 2.6E-03
0/3 2.2E-03 2.0E-03 2.6E-03
na na na na
na na na na
0/3 1.5E-02 2.6E-03 2.1E-02
0/3 1.6E-01 6.5E-02 2.1E-01
0/6 1.3E+00 2.6E-01 4.1E+00
0/3 5.0E-01 2.6E-01 9.5E-01
1/8 8.7E-01 2.4E-02 4.1E+00
1/8 8.6E-01 2.4E-02 4.1E+00
2/8 8.9E-01 2.4E-02 4.1E+00
0/3 5.0E-01 2.6E-01 9.5E-01
2/8 9.5E-01 8.0E-03 4.1E+00
Reach Data Summ_Sed rev 12-6-02.xls: Table Sum
1/13/2003
                                                                                                                                                                                                                            Page 1 of 8

-------
                                                                                                            Appendix A-2
                                                                                       Summary Statistics for Analytes in Site Sediment (mg/kg)
                                                                                    Baseline Ecological Risk Assessment for the Ogden RailyardSite





ffi
CM



















0
PH









Petroleum
Hydrocarbons
























Benzo[a]anthracene
Benzo[a]pyrene
Benzo[b]fluoranthene
Benzo[g,h,i]perylene
Benzo[k]fluoranthene
Chrysene
Dibenz[a,h]anthracene
Fluoranthene
Fluorene
Indeno[l,2,3-c,d]pyrene
Naphthalene
Phenanthrene
Pyrene
Aroclor-1016
Aroclor-1221
Aroclor-1232
Aroclor-1242
Aroclor-1248
Aroclor-1254
Aroclor-1260
Aroclor-1268
PCB-105
PCB-114
PCB-118
PCB-123
PCB-126
PCB-156
PCB-157
PCB-167
PCB-169
PCB-189
PCB-77
PCB-81
Total Petroleum Hydrocarbons (TPH)
1 ,2,4-Trichlorobenzene
1 ,2-Dichlorobenzene
1,3-Dichlorobenzene
1 ,4-Dichlorobenzene
2,2'-oxybis(l-Chloropropane)
2,4,5-Trichlorophenol
2,4,6-Trichlorophenol
2,4-Dichlorophenol
2,4-Dimethylphenol
2,4-Dinitrophenol
2,4-Dinitrotoluene
2,6-Dinitrotoluene
2-Chlorophenol
2-Methylphenol (o-Cresol)
2-Nitroaniline
2-Nitrophenol
3,3'-Dichlorobenzidine
3-Nitroaniline
4,6-Dinitro-o-cresol
4-Bromophenyl-phenyl ether
4-Chloro-3-Methylphenol
Weber River - Reach A

DF Avg Min Max
0/2 2.3E+00 1.6E+00 3.0E+00
0/2 2.3E+00 1.6E+00 3.0E+00
0/2 2.3E+00 1.6E+00 3.0E+00
0/2 2.3E+00 1.6E+00 3.0E+00
0/2 2.3E+00 1.6E+00 3.0E+00
0/2 2.3E+00 1.6E+00 3.0E+00
0/2 2.3E+00 1.6E+00 3.0E+00
0/2 2.3E+00 1.6E+00 3.0E+00
0/2 2.3E+00 1.6E+00 3.0E+00
0/2 2.3E+00 1.6E+00 3.0E+00
2/4 1.1E+00 3.4E-03 3.0E+00
0/2 2.3E+00 1.6E+00 3.0E+00
0/2 2.3E+00 1.6E+00 3.0E+00
0/2 5.7E-02 3.9E-02 7.5E-02
0/2 1.1E-01 8.0E-02 1.5E-01
0/2 5.7E-02 3.9E-02 7.5E-02
0/2 5.7E-02 3.9E-02 7.5E-02
0/2 5.7E-02 3.9E-02 7.5E-02
0/2 5.7E-02 3.9E-02 7.5E-02
0/2 5.7E-02 3.9E-02 7.5E-02
0/2 5.7E-02 3.9E-02 7.5E-02
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
2/2 1.2E+03 1.1E+03 1.3E+03
0/4 1.1E+00 l.OE-03 3.0E+00
0/4 1.1E+00 l.OE-03 3.0E+00
0/4 1.1E+00 l.OE-03 3.0E+00
0/4 1.1E+00 l.OE-03 3.0E+00
na na na na
0/2 2.3E+00 1.6E+00 3.0E+00
0/2 2.3E+00 1.6E+00 3.0E+00
0/2 2.3E+00 1.6E+00 3.0E+00
0/2 2.3E+00 1.6E+00 3.0E+00
0/2 2.3E+00 1.6E+00 3.0E+00
0/2 2.3E+00 1.6E+00 3.0E+00
0/2 2.3E+00 1.6E+00 3.0E+00
0/2 2.3E+00 1.6E+00 3.0E+00
0/2 2.3E+00 1.6E+00 3.0E+00
0/2 2.3E+00 1.6E+00 3.0E+00
0/2 2.3E+00 1.6E+00 3.0E+00
0/2 2.3E+00 1.6E+00 3.0E+00
0/2 2.3E+00 1.6E+00 3.0E+00
0/2 2.3E+00 1.6E+00 3.0E+00
0/2 2.3E+00 1.6E+00 3.0E+00
0/2 2.3E+00 1.6E+00 3.0E+00
Weber River - Reach B

DF Avg Min Max
0/10 4.5E-01 1.7E-01 1.9E+00
0/10 4.5E-01 1.7E-01 1.9E+00
0/10 4.5E-01 1.7E-01 1.9E+00
0/10 4.5E-01 1.7E-01 1.9E+00
0/10 4.5E-01 1.7E-01 1.9E+00
0/10 4.5E-01 1.7E-01 1.9E+00
0/10 4.5E-01 1.7E-01 1.9E+00
0/10 4.5E-01 1.7E-01 1.9E+00
0/10 4.5E-01 1.7E-01 1.9E+00
0/10 4.5E-01 1.7E-01 1.9E+00
0/12 3.8E-01 6.0E-04 1.9E+00
0/10 4.5E-01 1.7E-01 1.9E+00
0/10 4.5E-01 1.7E-01 1.9E+00
0/10 4.0E-02 3.2E-02 4.7E-02
0/10 4.8E-02 4.0E-02 9.5E-02
0/10 4.0E-02 3.2E-02 4.7E-02
0/10 4.0E-02 3.2E-02 4.7E-02
0/10 4.0E-02 3.2E-02 4.7E-02
0/10 4.0E-02 3.2E-02 4.7E-02
0/10 4.0E-02 3.2E-02 4.7E-02
0/2 4.0E-02 3.2E-02 4.7E-02
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
2/2 5.4E+02 2.8E+02 7.9E+02
0/12 3.8E-01 6.0E-04 1.9E+00
0/12 3.8E-01 6.0E-04 1.9E+00
0/12 3.8E-01 6.0E-04 1.9E+00
0/12 3.8E-01 6.0E-04 1.9E+00
na na na na
0/10 6.5E-01 4.2E-01 1.9E+00
0/10 4.5E-01 1.7E-01 1.9E+00
0/10 4.5E-01 1.7E-01 1.9E+00
0/10 4.5E-01 1.7E-01 1.9E+00
0/10 6.5E-01 4.2E-01 1.9E+00
0/10 4.5E-01 1.7E-01 1.9E+00
0/10 4.5E-01 1.7E-01 1.9E+00
0/10 4.5E-01 1.7E-01 1.9E+00
0/10 4.5E-01 1.7E-01 1.9E+00
0/10 6.5E-01 4.2E-01 1.9E+00
0/10 4.5E-01 1.7E-01 1.9E+00
0/10 4.5E-01 1.7E-01 1.9E+00
0/10 6.5E-01 4.2E-01 1.9E+00
0/10 6.5E-01 4.2E-01 1.9E+00
0/2 1.6E+00 1.3E+00 1.9E+00
0/10 4.5E-01 1.7E-01 1.9E+00
Weber River - Reach C

DF Avg Min Max
1/5 5.3E-01 8.5E-02 2.1E+00
1/5 5.2E-01 7.6E-02 2.1E+00
1/5 5.3E-01 1.1E-01 2.1E+00
1/5 5.2E-01 4.2E-02 2.1E+00
1/5 5.2E-01 3.7E-02 2.1E+00
1/5 5.3E-01 l.OE-01 2.1E+00
0/5 5.4E-01 1.7E-01 2.1E+00
1/5 5.4E-01 1.4E-01 2.1E+00
0/5 5.4E-01 1.7E-01 2.1E+00
0/5 5.4E-01 1.7E-01 2.1E+00
0/6 4.5E-01 1.1E-03 2.1E+00
1/5 5.2E-01 7.4E-02 2.1E+00
2/5 5.2E-01 3.4E-02 2.1E+00
0/5 4.2E-02 4.0E-02 5.0E-02
0/5 5.3E-02 4.0E-02 1.1E-01
0/5 4.2E-02 4.0E-02 5.0E-02
0/5 4.2E-02 4.0E-02 5.0E-02
0/5 4.2E-02 4.0E-02 5.0E-02
0/5 4.2E-02 4.0E-02 5.0E-02
0/5 4.2E-02 4.0E-02 5.0E-02
0/1 5.0E-02 5.0E-02 5.0E-02
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
1/1 1.8E+03 1.8E+03 1.8E+03
0/6 4.5E-01 1.1E-03 2.1E+00
0/6 4.5E-01 1.1E-03 2.1E+00
0/6 4.5E-01 1.1E-03 2.1E+00
0/6 4.5E-01 1.1E-03 2.1E+00
na na na na
0/5 7.4E-01 4.2E-01 2.1E+00
0/5 5.4E-01 1.7E-01 2.1E+00
0/5 5.4E-01 1.7E-01 2.1E+00
0/5 5.4E-01 1.7E-01 2.1E+00
0/5 7.4E-01 4.2E-01 2.1E+00
0/5 5.4E-01 1.7E-01 2.1E+00
0/5 5.4E-01 1.7E-01 2.1E+00
0/5 5.4E-01 1.7E-01 2.1E+00
0/5 5.4E-01 1.7E-01 2.1E+00
0/5 7.4E-01 4.2E-01 2.1E+00
0/5 5.4E-01 1.7E-01 2.1E+00
0/5 5.4E-01 1.7E-01 2.1E+00
0/5 7.4E-01 4.2E-01 2.1E+00
0/5 7.4E-01 4.2E-01 2.1E+00
0/1 2.1E+00 2.1E+00 2.1E+00
0/5 5.4E-01 1.7E-01 2.1E+00
Weber River - Reach D

DF Avg Min Max
1/10 9.0E-01 8.0E-02 2.9E+00
1/10 9.0E-01 5.4E-02 2.9E+00
1/10 9.0E-01 7.5E-02 2.9E+00
1/10 8.9E-01 3.4E-02 2.9E+00
0/10 9.1E-01 1.7E-01 2.9E+00
4/10 8.6E-01 3.5E-02 2.9E+00
0/10 9.1E-01 1.7E-01 2.9E+00
2/10 8.9E-01 4.1E-02 2.9E+00
0/10 9.1E-01 1.7E-01 2.9E+00
0/10 9.1E-01 1.7E-01 2.9E+00
0/15 6.1E-01 6.8E-04 2.9E+00
1/10 9.0E-01 5.2E-02 2.9E+00
5/10 8.6E-01 3.5E-02 2.9E+00
0/15 3.6E-02 2.2E-02 7.0E-02
0/15 5.9E-02 4.0E-02 1.4E-01
0/15 3.6E-02 2.2E-02 7.0E-02
0/15 3.6E-02 2.2E-02 7.0E-02
0/15 3.6E-02 2.2E-02 7.0E-02
0/15 3.6E-02 2.2E-02 7.0E-02
0/15 3.6E-02 2.2E-02 7.0E-02
0/5 4.1E-02 2.9E-02 7.0E-02
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
5/5 8.3E+02 2.0E+02 2.2E+03
0/15 6.1E-01 6.8E-04 2.9E+00
0/15 6.1E-01 6.8E-04 2.9E+00
0/15 6.1E-01 6.8E-04 2.9E+00
0/15 6.1E-01 6.8E-04 2.9E+00
na na na na
0/10 l.OE+00 4.2E-01 2.9E+00
0/10 9.1E-01 1.7E-01 2.9E+00
0/10 9.1E-01 1.7E-01 2.9E+00
0/10 9.1E-01 1.7E-01 2.9E+00
0/10 l.OE+00 4.2E-01 2.9E+00
0/10 9.1E-01 1.7E-01 2.9E+00
0/10 9.1E-01 1.7E-01 2.9E+00
0/10 9.1E-01 1.7E-01 2.9E+00
0/10 9.1E-01 1.7E-01 2.9E+00
0/10 l.OE+00 4.2E-01 2.9E+00
0/10 9.1E-01 1.7E-01 2.9E+00
0/10 9.1E-01 1.7E-01 2.9E+00
0/10 l.OE+00 4.2E-01 2.9E+00
0/10 l.OE+00 4.2E-01 2.9E+00
0/5 1.7E+00 1.2E+00 2.9E+00
0/10 9.1E-01 1.7E-01 2.9E+00
Buena Ventura Park Pond

DF Avg Min Max
2/8 9.6E-01 3.1E-02 4.1E+00
2/8 9.6E-01 2.8E-02 4.1E+00
2/8 9.6E-01 3.5E-02 4.1E+00
2/8 9.5E-01 1.3E-02 4.1E+00
2/8 9.6E-01 2.8E-02 4.1E+00
2/8 9.6E-01 4.7E-02 4.1E+00
0/8 9.6E-01 2.4E-02 4.1E+00
2/8 9.7E-01 5.2E-02 4.1E+00
0/8 9.6E-01 2.4E-02 4.1E+00
2/8 9.5E-01 1.5E-02 4.1E+00
1/9 7.7E-01 2.9E-03 4.1E+00
2/8 9.6E-01 2.6E-02 4.1E+00
3/8 9.4E-01 5.1E-02 4.1E+00
0/3 3.7E-02 3.2E-02 4.1E-02
0/3 7.7E-02 6.5E-02 8.5E-02
0/3 3.7E-02 3.2E-02 4.1E-02
0/3 3.7E-02 3.2E-02 4.1E-02
0/3 3.7E-02 3.2E-02 4.1E-02
0/3 3.7E-02 3.2E-02 4.1E-02
0/3 3.7E-02 3.2E-02 4.1E-02
0/1 3.2E-02 3.2E-02 3.2E-02
1/1 1.4E+02 1.4E+02 1.4E+02
0/1 4.8E+00 4.8E+00 4.8E+00
1/1 3.0E+02 3.0E+02 3.0E+02
0/1 4.8E+00 4.8E+00 4.8E+00
0/1 4.8E+00 4.8E+00 4.8E+00
1/1 4.3E+01 4.3E+01 4.3E+01
0/1 9.7E+00 9.7E+00 9.7E+00
0/1 9.7E+00 9.7E+00 9.7E+00
0/1 9.7E+00 9.7E+00 9.7E+00
0/1 9.7E+00 9.7E+00 9.7E+00
1/1 3.0E+01 3.0E+01 3.0E+01
0/1 9.7E-01 9.7E-01 9.7E-01
na na na na
0/5 5.5E-01 7.1E-04 1.3E+00
0/5 5.5E-01 7.1E-04 1.3E+00
0/5 5.5E-01 7.1E-04 1.3E+00
0/5 5.5E-01 7.1E-04 1.3E+00
na na na na
0/6 2.4E+00 2.6E-01 l.OE+01
0/6 1.3E+00 2.6E-01 4.1E+00
0/6 1.3E+00 2.6E-01 4.1E+00
0/6 1.3E+00 2.6E-01 4.1E+00
0/6 3.4E+00 1.3E+00 l.OE+01
0/6 1.3E+00 2.6E-01 4.1E+00
0/6 1.3E+00 2.6E-01 4.1E+00
0/6 1.3E+00 2.6E-01 4.1E+00
0/6 1.3E+00 2.6E-01 4.1E+00
0/6 3.4E+00 1.3E+00 l.OE+01
0/6 1.3E+00 2.6E-01 4.1E+00
0/6 1.3E+00 2.6E-01 4.1E+00
0/6 3.4E+00 1.3E+00 l.OE+01
0/6 3.4E+00 1.3E+00 l.OE+01
0/3 2.0E+00 8.0E-01 4.1E+00
0/6 1.3E+00 2.6E-01 4.1E+00
Reach Data Summ_Sed rev 12-6-02.xls: Table Sum
1/13/2003
                                                                                                                                                                                                                            Page 2 of 8

-------
                                                                                                            Appendix A-2
                                                                                       Summary Statistics for Analytes in Site Sediment (mg/kg)
                                                                                    Baseline Ecological Risk Assessment for the Ogden RailyardSite






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4-Chloroaniline
4-Chlorophenyl-phenyl ether
4-Methylphenol (p-Cresol)
4-Nitroaniline
4-Nitrophenol
Acetophenone
Benzaldehyde
Benzyl alcohol
Biphenyl
bis(2-Chloroethoxy)methane
bis(2-Chloroethyl)ether
bis(2-Chloroisopropyl)ether
bis(2-Ethylhexyl)phthalate
bis(n-octyl)phthalate
Butylbenzylphthalate
Carbazole
Dibenzofuran
Dibutylphthalate
Diethylphthalate
Dimethylphthalate
Hexachlorobenzene
Hexachlorobutadiene
Hexachlorocyclopentadiene
Hexachloroethane
Isophorone
Nitrobenzene
N-Nitrosodiphenylamine
n-Nitrosodipropylamine
Pentachlorophenol (PCP)
Phenol
1 , 1 ,1 ,2-Tetrachloroethane
1,1,1-Trichloroethane
1 , 1 ,2,2-Tetrachloroethane
1,1,2-Trichloroethane
1,1-Dichloroethane
1,1-Dichloroethene
1 , 1 -Dichloropropene
1,2,3-Trichlorobenzene
1,2,3-Trichloropropane
1,2,4-Trimethylbenzene
l,2-Dibromo-3-chloropropane(DBCP)
1,2-Dichloroethane
1,2-Dichloroethene
1,2-Dichloropropane
1,3,5-Trimethylbenzene
1,3-Dichloropropane
1,4-Dioxane
2,2-Dichloropropane
2-Chloro-l,3-butadiene (Chloroprene)
2-Chloroethyl vinyl ether
2-Chlorotoluene
2-Hexanone
3-Chloropropene (Allyl Chloride)
4-Chlorotoluene
Acetone
Acetonitrile
Weber River - Reach A

DF Avg Min Max
0/2 2.3E+00 1.6E+00 3.0E+00
0/2 2.3E+00 1.6E+00 3.0E+00
2/2 4.3E+00 3.8E+00 4.8E+00
0/2 2.3E+00 1.6E+00 3.0E+00
0/2 2.3E+00 1.6E+00 3.0E+00
na na na na
na na na na
0/2 2.3E+00 1.6E+00 3.0E+00
na na na na
0/2 2.3E+00 1.6E+00 3.0E+00
0/2 2.3E+00 1.6E+00 3.0E+00
0/2 2.3E+00 1.6E+00 3.0E+00
1/2 2.3E+00 1.6E+00 3.0E+00
0/2 2.3E+00 1.6E+00 3.0E+00
0/2 2.3E+00 1.6E+00 3.0E+00
0/2 2.3E+00 1.6E+00 3.0E+00
0/2 2.3E+00 1.6E+00 3.0E+00
0/2 2.3E+00 1.6E+00 3.0E+00
0/2 2.3E+00 1.6E+00 3.0E+00
0/2 2.3E+00 1.6E+00 3.0E+00
0/2 2.3E+00 1.6E+00 3.0E+00
0/4 1.1E+00 l.OE-03 3.0E+00
0/2 2.3E+00 1.6E+00 3.0E+00
0/2 2.3E+00 1.6E+00 3.0E+00
0/2 2.3E+00 1.6E+00 3.0E+00
0/2 2.3E+00 1.6E+00 3.0E+00
0/2 2.3E+00 1.6E+00 3.0E+00
0/2 2.3E+00 1.6E+00 3.0E+00
0/2 2.3E+00 1.6E+00 3.0E+00
0/2 2.3E+00 1.6E+00 3.0E+00
0/2 1.5E-03 l.OE-03 2.0E-03
0/5 2.1E-03 l.OE-03 2.5E-03
0/5 2.1E-03 l.OE-03 2.5E-03
1/5 2.4E-03 l.OE-03 4.0E-03
0/5 2.1E-03 l.OE-03 2.5E-03
0/2 1.5E-03 l.OE-03 2.0E-03
0/2 1.5E-03 l.OE-03 2.0E-03
0/2 1.5E-03 l.OE-03 2.0E-03
0/5 2.1E-03 l.OE-03 2.5E-03
0/2 1.5E-03 l.OE-03 2.0E-03
0/2 1.5E-03 l.OE-03 2.0E-03
0/5 2.1E-03 l.OE-03 2.5E-03
0/3 5.0E-03 5.0E-03 5.0E-03
0/5 2.1E-03 l.OE-03 2.5E-03
0/2 1.5E-03 l.OE-03 2.0E-03
0/2 1.5E-03 l.OE-03 2.0E-03
na na na na
0/2 1.5E-03 l.OE-03 2.0E-03
na na na na
0/3 2.5E-03 2.5E-03 2.5E-03
0/2 1.5E-03 l.OE-03 2.0E-03
0/5 4.2E-03 2.1E-03 5.0E-03
na na na na
0/2 1.5E-03 l.OE-03 2.0E-03
5/5 9.3E-02 6.7E-02 1.3E-01
0/3 l.OE-02 l.OE-02 l.OE-02
Weber River - Reach B

DF Avg Min Max
0/10 4.5E-01 1.7E-01 1.9E+00
0/10 4.5E-01 1.7E-01 1.9E+00
3/10 4.6E-01 1.7E-01 1.3E+00
0/10 6.5E-01 4.2E-01 1.9E+00
0/10 6.5E-01 4.2E-01 1.9E+00
na na na na
na na na na
0/2 1.6E+00 1.3E+00 1.9E+00
na na na na
0/10 4.5E-01 1.7E-01 1.9E+00
0/10 4.5E-01 1.7E-01 1.9E+00
0/10 4.5E-01 1.7E-01 1.9E+00
7/10 4.3E-01 3.5E-02 1.9E+00
0/10 4.5E-01 1.7E-01 1.9E+00
0/10 4.5E-01 1.7E-01 1.9E+00
0/10 4.5E-01 1.7E-01 1.9E+00
0/10 4.5E-01 1.7E-01 1.9E+00
0/10 4.5E-01 1.7E-01 1.9E+00
0/10 4.5E-01 1.7E-01 1.9E+00
0/10 4.5E-01 1.7E-01 1.9E+00
0/10 4.5E-01 1.7E-01 1.9E+00
0/12 3.8E-01 6.0E-04 1.9E+00
0/10 4.5E-01 1.7E-01 1.9E+00
0/10 4.5E-01 1.7E-01 1.9E+00
0/10 4.5E-01 1.7E-01 1.9E+00
0/10 4.5E-01 1.7E-01 1.9E+00
0/10 4.5E-01 1.7E-01 1.9E+00
0/10 4.5E-01 1.7E-01 1.9E+00
0/10 6.5E-01 4.2E-01 1.9E+00
1/10 4.4E-01 7.8E-02 1.9E+00
0/12 4.3E-03 6.0E-04 5.0E-03
0/14 2.2E-03 6.0E-04 2.5E-03
0/14 2.2E-03 6.0E-04 2.5E-03
0/14 2.2E-03 6.0E-04 2.5E-03
0/14 2.2E-03 6.0E-04 2.5E-03
0/2 6.7E-04 6.0E-04 7.4E-04
0/2 6.7E-04 6.0E-04 7.4E-04
0/2 6.7E-04 6.0E-04 7.4E-04
0/14 4.0E-03 6.0E-04 5.0E-03
0/2 6.7E-04 6.0E-04 7.4E-04
0/12 4.3E-03 6.0E-04 5.0E-03
0/14 2.2E-03 6.0E-04 2.5E-03
0/12 2.9E-03 2.5E-03 5.0E-03
0/14 2.2E-03 6.0E-04 2.5E-03
0/2 6.7E-04 6.0E-04 7.4E-04
0/2 6.7E-04 6.0E-04 7.4E-04
0/10 1.5E-01 1.5E-01 1.5E-01
0/2 6.7E-04 6.0E-04 7.4E-04
0/10 5.0E-03 5.0E-03 5.0E-03
0/12 4.6E-03 2.5E-03 5.0E-03
0/2 6.7E-04 6.0E-04 7.4E-04
0/14 4.5E-03 1.2E-03 5.0E-03
0/10 5.0E-03 5.0E-03 5.0E-03
0/2 6.7E-04 6.0E-04 7.4E-04
5/14 8.8E-03 1.4E-03 4.7E-02
0/12 2.3E-02 l.OE-02 2.5E-02
Weber River - Reach C

DF Avg Min Max
0/5 5.4E-01 1.7E-01 2.1E+00
0/5 5.4E-01 1.7E-01 2.1E+00
1/5 3.9E-01 1.7E-01 1.3E+00
0/5 7.4E-01 4.2E-01 2.1E+00
0/5 7.4E-01 4.2E-01 2.1E+00
na na na na
na na na na
0/1 2.1E+00 2.1E+00 2.1E+00
na na na na
0/5 5.4E-01 1.7E-01 2.1E+00
0/5 5.4E-01 1.7E-01 2.1E+00
0/5 5.4E-01 1.7E-01 2.1E+00
5/5 4.7E-01 5.3E-02 1.8E+00
0/5 5.4E-01 1.7E-01 2.1E+00
1/5 5.3E-01 9.5E-02 2.1E+00
0/5 5.4E-01 1.7E-01 2.1E+00
0/5 5.4E-01 1.7E-01 2.1E+00
0/5 5.4E-01 1.7E-01 2.1E+00
0/5 5.4E-01 1.7E-01 2.1E+00
0/5 5.4E-01 1.7E-01 2.1E+00
0/5 5.4E-01 1.7E-01 2.1E+00
0/6 4.5E-01 1.1E-03 2.1E+00
0/5 5.4E-01 1.7E-01 2.1E+00
0/5 5.4E-01 1.7E-01 2.1E+00
0/5 5.4E-01 1.7E-01 2.1E+00
0/5 5.4E-01 1.7E-01 2.1E+00
0/5 5.4E-01 1.7E-01 2.1E+00
0/5 5.4E-01 1.7E-01 2.1E+00
0/5 7.4E-01 4.2E-01 2.1E+00
0/5 5.4E-01 1.7E-01 2.1E+00
0/5 4.2E-03 1.1E-03 5.0E-03
0/6 2.3E-03 1.1E-03 2.5E-03
0/6 2.3E-03 1.1E-03 2.5E-03
0/6 2.3E-03 1.1E-03 2.5E-03
0/6 2.3E-03 1.1E-03 2.5E-03
0/1 1.1E-03 1.1E-03 1.1E-03
0/1 1.1E-03 1.1E-03 1.1E-03
0/1 1.1E-03 1.1E-03 1.1E-03
0/6 3.9E-03 1.1E-03 5.0E-03
0/1 1.1E-03 1.1E-03 1.1E-03
0/5 4.2E-03 1.1E-03 5.0E-03
0/6 2.3E-03 1.1E-03 2.5E-03
0/5 3.0E-03 2.5E-03 5.0E-03
0/6 2.3E-03 1.1E-03 2.5E-03
0/1 1.1E-03 1.1E-03 1.1E-03
0/1 1.1E-03 1.1E-03 1.1E-03
0/4 1.5E-01 1.5E-01 1.5E-01
0/1 1.1E-03 1.1E-03 1.1E-03
0/4 5.0E-03 5.0E-03 5.0E-03
0/5 4.5E-03 2.5E-03 5.0E-03
0/1 1.1E-03 1.1E-03 1.1E-03
0/6 4.5E-03 2.2E-03 5.0E-03
0/4 5.0E-03 5.0E-03 5.0E-03
0/1 1.1E-03 1.1E-03 1.1E-03
4/6 3.2E-02 5.0E-03 9.5E-02
0/5 2.2E-02 l.OE-02 2.5E-02
Weber River - Reach D

DF Avg Min Max
0/10 9.1E-01 1.7E-01 2.9E+00
0/10 9.1E-01 1.7E-01 2.9E+00
6/10 1.1E+00 1.3E-01 3.5E+00
0/10 l.OE+00 4.2E-01 2.9E+00
0/10 l.OE+00 4.2E-01 2.9E+00
na na na na
na na na na
0/5 1.7E+00 1.2E+00 2.9E+00
na na na na
0/10 9.1E-01 1.7E-01 2.9E+00
0/10 9.1E-01 1.7E-01 2.9E+00
0/10 9.1E-01 1.7E-01 2.9E+00
8/10 7.1E-01 9.2E-02 1.7E+00
0/10 9.1E-01 1.7E-01 2.9E+00
0/10 9.1E-01 1.7E-01 2.9E+00
0/10 9.1E-01 1.7E-01 2.9E+00
0/10 9.1E-01 1.7E-01 2.9E+00
1/10 9.0E-01 5.3E-02 2.9E+00
0/10 9.1E-01 1.7E-01 2.9E+00
0/10 9.1E-01 1.7E-01 2.9E+00
0/10 9.1E-01 1.7E-01 2.9E+00
0/15 6.1E-01 6.8E-04 2.9E+00
0/10 9.1E-01 1.7E-01 2.9E+00
0/10 9.1E-01 1.7E-01 2.9E+00
0/10 9.1E-01 1.7E-01 2.9E+00
0/10 9.1E-01 1.7E-01 2.9E+00
0/10 9.1E-01 1.7E-01 2.9E+00
0/10 9.1E-01 1.7E-01 2.9E+00
0/10 l.OE+00 4.2E-01 2.9E+00
1/10 9.0E-01 1.1E-01 2.9E+00
0/10 3.0E-03 6.8E-04 5.0E-03
0/16 2.0E-03 6.8E-04 2.5E-03
0/16 2.0E-03 6.8E-04 2.5E-03
0/16 2.0E-03 6.8E-04 2.5E-03
1/16 2.2E-03 6.8E-04 5.2E-03
0/5 9.3E-04 6.8E-04 1.4E-03
0/5 9.3E-04 6.8E-04 1.4E-03
0/5 9.3E-04 6.8E-04 1.4E-03
0/16 2.8E-03 6.8E-04 5.0E-03
0/5 9.3E-04 6.8E-04 1.4E-03
0/10 3.0E-03 6.8E-04 5.0E-03
0/16 2.0E-03 6.8E-04 2.5E-03
0/11 3.9E-03 2.5E-03 5.0E-03
0/16 2.0E-03 6.8E-04 2.5E-03
0/5 9.3E-04 6.8E-04 1.4E-03
0/5 9.3E-04 6.8E-04 1.4E-03
0/5 1.5E-01 1.5E-01 1.5E-01
0/5 9.3E-04 6.8E-04 1.4E-03
0/5 5.0E-03 5.0E-03 5.0E-03
0/11 3.6E-03 2.5E-03 5.0E-03
0/5 9.3E-04 6.8E-04 1.4E-03
0/16 4.0E-03 1.4E-03 5.0E-03
0/5 5.0E-03 5.0E-03 5.0E-03
0/5 9.3E-04 6.8E-04 1.4E-03
15/16 7.2E-02 2.0E-03 3.9E-01
0/11 1.7E-02 l.OE-02 2.5E-02
Buena Ventura Park Pond

DF Avg Min Max
0/6 1.3E+00 2.6E-01 4.1E+00
0/6 1.3E+00 2.6E-01 4.1E+00
0/6 1.3E+00 2.6E-01 4.1E+00
0/6 3.4E+00 1.3E+00 l.OE+01
0/6 3.4E+00 1.3E+00 l.OE+01
0/2 2.4E+00 8.0E-01 4.1E+00
0/2 2.4E+00 8.0E-01 4.1E+00
0/1 1.3E+00 1.3E+00 1.3E+00
0/2 2.4E+00 8.0E-01 4.1E+00
0/6 1.3E+00 2.6E-01 4.1E+00
0/6 1.3E+00 2.6E-01 4.1E+00
0/3 2.0E+00 8.0E-01 4.1E+00
4/6 4.4E-01 7.3E-02 9.1E-01
0/6 1.3E+00 2.6E-01 4.1E+00
0/6 1.3E+00 2.6E-01 4.1E+00
0/6 1.3E+00 2.6E-01 4.1E+00
0/6 1.3E+00 2.6E-01 4.1E+00
2/6 1.2E+00 7.5E-02 4.1E+00
0/6 1.3E+00 2.6E-01 4.1E+00
0/6 1.3E+00 2.6E-01 4.1E+00
0/6 1.3E+00 2.6E-01 4.1E+00
0/7 1.1E+00 7.1E-04 4.1E+00
0/6 1.3E+00 2.6E-01 4.1E+00
0/6 1.3E+00 2.6E-01 4.1E+00
0/6 1.3E+00 2.6E-01 4.1E+00
0/6 1.3E+00 2.6E-01 4.1E+00
0/6 1.3E+00 2.6E-01 4.1E+00
0/6 1.3E+00 2.6E-01 4.1E+00
0/6 3.4E+00 1.3E+00 l.OE+01
0/6 1.3E+00 2.6E-01 4.1E+00
0/1 7.1E-04 7.1E-04 7.1E-04
0/4 4.1E-03 7.1E-04 7.0E-03
0/4 4.1E-03 7.1E-04 7.0E-03
0/4 4.1E-03 7.1E-04 7.0E-03
0/4 4.1E-03 7.1E-04 7.0E-03
0/1 7.1E-04 7.1E-04 7.1E-04
0/1 7.1E-04 7.1E-04 7.1E-04
0/1 7.1E-04 7.1E-04 7.1E-04
0/4 4.1E-03 7.1E-04 7.0E-03
0/1 7.1E-04 7.1E-04 7.1E-04
0/4 4.1E-03 7.1E-04 7.0E-03
0/4 4.1E-03 7.1E-04 7.0E-03
0/3 l.OE-02 8.0E-03 1.4E-02
0/4 4.1E-03 7.1E-04 7.0E-03
0/1 7.1E-04 7.1E-04 7.1E-04
0/1 7.1E-04 7.1E-04 7.1E-04
na na na na
0/1 7.1E-04 7.1E-04 7.1E-04
na na na na
0/3 5.2E-03 4.0E-03 7.0E-03
0/1 7.1E-04 7.1E-04 7.1E-04
0/4 8.0E-03 1.4E-03 1.4E-02
na na na na
0/1 7.1E-04 7.1E-04 7.1E-04
2/4 1.3E-02 5.7E-03 3.1E-02
0/3 2.1E-02 1.6E-02 2.9E-02
Reach Data Summ_Sed rev 12-6-02.xls: Table Sum
1/13/2003
                                                                                                                                                                                                                            Page 3 of 8

-------
                                                                                                            Appendix A-2
                                                                                       Summary Statistics for Analytes in Site Sediment (mg/kg)
                                                                                    Baseline Ecological Risk Assessment for the Ogden RailyardSite
Type










R
g




































Analyte
Acrolein
Acrylonitrile
Benzene
Bromobenzene
Bromodichlorom ethane
Bromoform
Bromomethane (Methyl bromide)
Carbon Disulfide
Carbon Tetrachloride
Chlorobenzene
Chlorodibromomethane
Chloroethane (Ethyl chloride)
Chloroform
Chloromethane (Methyl chloride)
cis- 1 ,2-Dichloroethene
cis-l,3-Dichloropropene
Dibromom ethane
Dichlorodifluoromethane
Dichloromethane
Ethyl Methacrylate
Ethylbenzene
Ethylene dibromide (EDB)
Hexane
lodomethane
Isobutyl Alcohol
Isopropylbenzene
Methacrylonitrile
Methyl ethyl ketone (MEK)
Methyl isobutyl ketone (MIBK)
Methyl Methacrylate
Methyl -t-butyl ether (MTBE)
n-Butylbenzene
n-Propylbenzene
o-Xylene
sec-Butylbenzene
Styrene
tert-Butylbenzene
Tetrachloroethene
Toluene
trans-l,2-Dichloroethene
trans-l,3-Dichloropropene
trans-l,4-Dichloro-2-Butene
Trichloroethene
Trichlorofluoromethane
Vinyl Acetate
Vinyl Chloride
Xylenes (Total)
Xylenes-p,m
Weber River - Reach A
DF Avg Min Max
0/3 l.OE-02 l.OE-02 l.OE-02
0/3 l.OE-02 l.OE-02 l.OE-02
0/5 2.1E-03 l.OE-03 2.5E-03
0/2 1.5E-03 l.OE-03 2.0E-03
0/5 2.1E-03 l.OE-03 2.5E-03
0/5 2.1E-03 l.OE-03 2.5E-03
3/5 6.8E-03 2.1E-03 l.OE-02
3/5 4.2E-03 l.OE-03 7.0E-03
0/5 2.1E-03 l.OE-03 2.5E-03
0/5 2.1E-03 l.OE-03 2.5E-03
0/5 2.1E-03 l.OE-03 2.5E-03
0/5 3.6E-03 l.OE-03 5.0E-03
0/5 2.1E-03 l.OE-03 2.5E-03
0/5 2.5E-03 l.OE-03 3.5E-03
0/3 5.5E-03 5.0E-03 6.0E-03
0/7 1.9E-03 l.OE-03 2.5E-03
0/2 1.5E-03 l.OE-03 2.0E-03
2/2 1.2E-02 8.1E-03 1.6E-02
5/5 4.9E-03 2.0E-03 8.5E-03
na na na na
0/5 2.1E-03 l.OE-03 2.5E-03
0/5 2.1E-03 l.OE-03 2.5E-03
0/3 2.5E-03 2.5E-03 2.5E-03
na na na na
na na na na
1/4 5.4E-03 l.OE-03 1.6E-02
0/3 5.0E-03 5.0E-03 5.0E-03
5/5 3.6E-02 2.4E-02 5.6E-02
0/5 4.2E-03 2.1E-03 5.0E-03
na na na na
0/2 1.5E-03 l.OE-03 2.0E-03
0/2 1.5E-03 l.OE-03 2.0E-03
0/2 1.5E-03 l.OE-03 2.0E-03
0/2 1.5E-03 l.OE-03 2.0E-03
0/2 1.5E-03 l.OE-03 2.0E-03
0/5 2.1E-03 l.OE-03 2.5E-03
0/2 1.5E-03 l.OE-03 2.0E-03
0/5 2.1E-03 l.OE-03 2.5E-03
5/5 1.2E+00 3.6E-01 1.9E+00
0/5 3.9E-03 l.OE-03 6.0E-03
0/5 2.1E-03 l.OE-03 2.5E-03
na na na na
0/5 2.1E-03 l.OE-03 2.5E-03
0/5 3.6E-03 l.OE-03 5.0E-03
0/3 2.5E-03 2.5E-03 2.5E-03
0/5 3.6E-03 l.OE-03 5.0E-03
1/3 7.0E-03 l.OE-03 l.OE-02
0/2 1.5E-03 l.OE-03 2.0E-03
Weber River - Reach B
DF Avg Min Max
0/12 4.3E-02 l.OE-02 5.0E-02
1/12 2.1E-02 l.OE-02 2.5E-02
0/14 2.2E-03 6.0E-04 2.5E-03
0/2 6.7E-04 6.0E-04 7.4E-04
0/14 2.2E-03 6.0E-04 2.5E-03
0/14 2.2E-03 6.0E-04 2.5E-03
0/14 4.3E-03 1.2E-03 5.0E-03
1/14 2.4E-03 6.0E-04 5.0E-03
0/14 2.2E-03 6.0E-04 2.5E-03
0/14 2.2E-03 6.0E-04 2.5E-03
0/14 2.2E-03 6.0E-04 2.5E-03
0/14 4.4E-03 6.0E-04 5.0E-03
0/14 2.2E-03 6.0E-04 2.5E-03
0/14 4.1E-03 6.0E-04 5.0E-03
0/2 4.3E-03 3.5E-03 5.0E-03
0/16 2.0E-03 6.0E-04 2.5E-03
0/12 4.3E-03 6.0E-04 5.0E-03
2/12 5.0E-03 4.5E-03 5.8E-03
9/14 2.7E-03 l.OE-03 5.2E-03
0/10 2.5E-02 2.5E-02 2.5E-02
1/14 2.1E-03 6.0E-04 2.5E-03
0/14 4.0E-03 6.0E-04 5.0E-03
0/2 2.5E-03 2.5E-03 2.5E-03
0/10 5.0E-03 5.0E-03 5.0E-03
0/10 5.0E-02 5.0E-02 5.0E-02
0/4 6.7E-04 6.0E-04 7.4E-04
0/12 5.0E-03 5.0E-03 5.0E-03
1/14 4.8E-03 2.4E-03 5.0E-03
0/14 4.5E-03 1.2E-03 5.0E-03
0/10 5.0E-03 5.0E-03 5.0E-03
0/2 6.7E-04 6.0E-04 7.4E-04
0/2 6.7E-04 6.0E-04 7.4E-04
0/2 6.7E-04 6.0E-04 7.4E-04
0/2 6.7E-04 6.0E-04 7.4E-04
0/2 6.7E-04 6.0E-04 7.4E-04
0/14 2.2E-03 6.0E-04 2.5E-03
0/2 6.7E-04 6.0E-04 7.4E-04
0/14 2.2E-03 6.0E-04 2.5E-03
5/14 4.4E-03 7.4E-04 2.1E-02
0/4 2.5E-03 6.0E-04 5.0E-03
0/14 2.2E-03 6.0E-04 2.5E-03
0/10 5.0E-03 5.0E-03 5.0E-03
0/14 2.2E-03 6.0E-04 2.5E-03
0/14 2.6E-03 6.0E-04 5.0E-03
0/12 4.6E-03 2.5E-03 5.0E-03
0/14 4.4E-03 6.0E-04 5.0E-03
1/12 4.3E-03 2.5E-03 l.OE-02
0/2 6.7E-04 6.0E-04 7.4E-04
Weber River - Reach C
DF Avg Min Max
1/5 3.3E-02 4.5E-03 5.0E-02
0/5 2.2E-02 l.OE-02 2.5E-02
0/6 2.3E-03 1.1E-03 2.5E-03
0/1 1.1E-03 1.1E-03 1.1E-03
0/6 2.3E-03 1.1E-03 2.5E-03
0/6 2.3E-03 1.1E-03 2.5E-03
0/6 4.3E-03 2.2E-03 5.0E-03
1/6 2.3E-03 1.1E-03 3.0E-03
0/6 2.3E-03 1.1E-03 2.5E-03
0/6 2.3E-03 1.1E-03 2.5E-03
0/6 2.3E-03 1.1E-03 2.5E-03
0/6 4.3E-03 1.1E-03 5.0E-03
0/6 2.3E-03 1.1E-03 2.5E-03
0/6 4.0E-03 1.1E-03 5.0E-03
0/1 6.0E-03 6.0E-03 6.0E-03
0/7 2.1E-03 1.1E-03 2.5E-03
0/5 4.2E-03 1.1E-03 5.0E-03
1/5 5.8E-03 5.0E-03 8.9E-03
5/6 6.1E-03 2.0E-03 1.3E-02
0/4 2.5E-02 2.5E-02 2.5E-02
0/6 2.3E-03 1.1E-03 2.5E-03
0/6 3.9E-03 1.1E-03 5.0E-03
0/1 2.5E-03 2.5E-03 2.5E-03
0/4 5.0E-03 5.0E-03 5.0E-03
0/4 5.0E-02 5.0E-02 5.0E-02
0/2 1.1E-03 1.1E-03 1.1E-03
0/5 5.0E-03 5.0E-03 5.0E-03
2/6 8.0E-03 5.0E-03 1.6E-02
1/6 4.8E-03 2.2E-03 6.4E-03
0/4 5.0E-03 5.0E-03 5.0E-03
0/1 1.1E-03 1.1E-03 1.1E-03
0/1 1.1E-03 1.1E-03 1.1E-03
0/1 1.1E-03 1.1E-03 1.1E-03
0/1 1.1E-03 1.1E-03 1.1E-03
0/1 1.1E-03 1.1E-03 1.1E-03
0/6 2.3E-03 1.1E-03 2.5E-03
0/1 1.1E-03 1.1E-03 1.1E-03
0/6 2.3E-03 1.1E-03 2.5E-03
3/6 6.9E-03 1.1E-03 2.8E-02
0/2 3.5E-03 1.1E-03 6.0E-03
0/6 2.3E-03 1.1E-03 2.5E-03
0/4 5.0E-03 5.0E-03 5.0E-03
0/6 2.3E-03 1.1E-03 2.5E-03
0/6 2.7E-03 1.1E-03 5.0E-03
0/5 4.5E-03 2.5E-03 5.0E-03
0/6 4.3E-03 1.1E-03 5.0E-03
0/5 4.0E-03 2.5E-03 l.OE-02
0/1 1.1E-03 1.1E-03 1.1E-03
Weber River - Reach D
DF Avg Min Max
0/11 2.8E-02 l.OE-02 5.0E-02
0/11 1.7E-02 l.OE-02 2.5E-02
0/16 2.0E-03 6.8E-04 2.5E-03
0/5 9.3E-04 6.8E-04 1.4E-03
0/16 2.0E-03 6.8E-04 2.5E-03
0/16 2.0E-03 6.8E-04 2.5E-03
1/16 3.6E-03 1.4E-03 5.0E-03
7/16 2.1E-03 6.8E-04 5.2E-03
0/16 2.0E-03 6.8E-04 2.5E-03
1/16 2.0E-03 6.8E-04 2.5E-03
0/16 2.0E-03 6.8E-04 2.5E-03
0/16 3.7E-03 6.8E-04 5.0E-03
0/16 2.0E-03 6.8E-04 2.5E-03
1/16 3.0E-03 6.8E-04 5.0E-03
0/6 4.5E-03 3.5E-03 6.5E-03
0/21 1.8E-03 6.8E-04 2.5E-03
0/10 3.0E-03 6.8E-04 5.0E-03
5/10 7.0E-03 5.0E-03 1.3E-02
12/16 3.6E-03 5.0E-04 9.0E-03
0/5 2.5E-02 2.5E-02 2.5E-02
0/16 2.0E-03 6.8E-04 2.5E-03
0/16 2.8E-03 6.8E-04 5.0E-03
0/6 2.5E-03 2.5E-03 2.5E-03
0/5 5.0E-03 5.0E-03 5.0E-03
0/5 5.0E-02 5.0E-02 5.0E-02
1/10 1.1E-03 6.8E-04 3.3E-03
0/11 5.0E-03 5.0E-03 5.0E-03
11/16 1.6E-02 3.4E-03 6.0E-02
0/16 4.0E-03 1.4E-03 5.0E-03
0/5 5.0E-03 5.0E-03 5.0E-03
1/5 1.2E-03 7.0E-04 2.1E-03
0/5 9.3E-04 6.8E-04 1.4E-03
0/5 9.3E-04 6.8E-04 1.4E-03
0/5 9.3E-04 6.8E-04 1.4E-03
0/5 9.3E-04 6.8E-04 1.4E-03
0/16 2.0E-03 6.8E-04 2.5E-03
0/5 9.3E-04 6.8E-04 1.4E-03
0/16 2.0E-03 6.8E-04 2.5E-03
14/16 l.OE-01 6.8E-04 8.8E-01
0/11 2.9E-03 6.8E-04 6.5E-03
0/16 2.0E-03 6.8E-04 2.5E-03
0/5 5.0E-03 5.0E-03 5.0E-03
0/16 2.0E-03 6.8E-04 2.5E-03
0/16 2.9E-03 6.8E-04 5.0E-03
0/11 3.6E-03 2.5E-03 5.0E-03
0/16 3.7E-03 6.8E-04 5.0E-03
1/11 6.8E-03 2.5E-03 l.OE-02
0/5 9.3E-04 6.8E-04 1.4E-03
Buena Ventura Park Pond
DF Avg Min Max
0/3 2.1E-02 1.6E-02 2.9E-02
0/3 2.1E-02 1.6E-02 2.9E-02
0/4 4.1E-03 7.1E-04 7.0E-03
0/1 7.1E-04 7.1E-04 7.1E-04
0/4 4.1E-03 7.1E-04 7.0E-03
0/4 4.1E-03 7.1E-04 7.0E-03
0/4 8.0E-03 1.4E-03 1.4E-02
0/4 4.1E-03 7.1E-04 7.0E-03
0/4 4.1E-03 7.1E-04 7.0E-03
0/4 4.1E-03 7.1E-04 7.0E-03
0/4 4.1E-03 7.1E-04 7.0E-03
0/4 7.8E-03 7.1E-04 1.4E-02
0/4 4.1E-03 7.1E-04 7.0E-03
0/4 7.8E-03 7.1E-04 1.4E-02
0/3 5.2E-03 4.0E-03 7.0E-03
0/5 3.4E-03 7.1E-04 7.0E-03
0/1 7.1E-04 7.1E-04 7.1E-04
1/1 1.9E-03 1.9E-03 1.9E-03
0/4 1.9E-03 7.1E-04 3.0E-03
na na na na
0/4 4.1E-03 7.1E-04 7.0E-03
0/4 4.1E-03 7.1E-04 7.0E-03
0/3 5.2E-03 4.0E-03 7.0E-03
na na na na
na na na na
0/2 7.1E-04 7.1E-04 7.1E-04
0/3 l.OE-02 8.0E-03 1.4E-02
0/1 2.9E-03 2.9E-03 2.9E-03
0/4 8.0E-03 1.4E-03 1.4E-02
na na na na
0/1 7.1E-04 7.1E-04 7.1E-04
0/1 7.1E-04 7.1E-04 7.1E-04
0/1 7.1E-04 7.1E-04 7.1E-04
0/1 7.1E-04 7.1E-04 7.1E-04
0/1 7.1E-04 7.1E-04 7.1E-04
0/4 4.1E-03 7.1E-04 7.0E-03
0/1 7.1E-04 7.1E-04 7.1E-04
0/4 4.1E-03 7.1E-04 7.0E-03
0/4 4.1E-03 7.1E-04 7.0E-03
0/4 4.1E-03 7.1E-04 7.0E-03
0/4 4.1E-03 7.1E-04 7.0E-03
na na na na
0/4 4.1E-03 7.1E-04 7.0E-03
0/4 7.8E-03 7.1E-04 1.4E-02
0/3 5.2E-03 4.0E-03 7.0E-03
0/4 7.8E-03 7.1E-04 1.4E-02
0/3 1.6E-02 1.2E-02 2.2E-02
0/1 7.1E-04 7.1E-04 7.1E-04
Reach Data Summ_Sed rev 12-6-02.xls: Table Sum
1/13/2003
                                                                                                                                                                                                                            Page 4 of 8

-------
                                                                                                                                 Appendix A-2
                                                                                                            Summary Statistics for Analytes in Site Sediment (mg/kg)
                                                                                                         Baseline Ecological Risk Assessment for the Ogden RailyardSite
T
ype










HI
%
s





















u>
I
1
&



















y
Aluminum
Antimony
Arsenic
Barium
Beryllium
Cadmium
Calcium
Chromium
Cobalt
Copper
Iron
Lead
Magnesium
Manganese
Mercury
Nickel
Potassium
Selenium
Silver
Sodium
Thallium
Vanadium
Zinc
4,4'-DDD
4,4'-DDE
4,4'-DDT
Aldrin
alpha-BHC
beta-BHC
alpha-Chlordane
Atrazine
Caprolactam
Chlordane
delta-BHC
Dieldrin
Endosulfan I
Endosulfan II
Endosulfan Sulfate
Endrin
Endrin Aldehyde
Endrin ketone
gamma-BHC (Lindane)
gamma-Chlordane
Heptachlor
Heptachlor Epoxide
Isodrin
Kepone
Methoxychlor
Toxaphene
2-Chloronaphthalene
1-Methylnaphthalene
2-Methylnaphthalene
Acenaphthene
Acenaphthylene
Aniline
Anthracene
21st Street Pond
DF Avg Min Max
14/14 9.0E+03 3.5E+03 1.7E+04
0/14 1.4E+00 2.6E-01 7.0E+00
12/14 3.2E+00 7.5E-01 5.4E+00
12/14 9.7E+01 2.7E+01 1.5E+02
10/14 2.9E-01 1.5E-02 6.3E-01
0/14 1.1E-01 2.0E-02 5.5E-01
14/14 6.1E+04 3.1E+04 9.7E+04
14/14 1.3E+01 6.2E+00 2.2E+01
14/14 4.8E+00 2.7E+00 7.7E+00
14/14 1.9E+01 6.0E+00 3.3E+01
14/14 1.2E+04 6.0E+03 2.1E+04
14/14 2.5E+01 7.2E+00 4.9E+01
14/14 8.6E+03 6.4E+03 1.1E+04
14/14 4.6E+02 1.3E+02 9.6E+02
12/14 8.8E-02 2.0E-02 5.3E-01
14/14 1.1E+01 5.2E+00 2.0E+01
14/14 2.4E+03 9.2E+02 4.7E+03
6/14 9.1E-01 2.2E-01 2.5E+00
1/14 2.7E-01 1.2E-01 7.5E-01
14/14 2.6E+02 1.7E+02 3.8E+02
2/14 1.1E+00 2.2E-01 1.7E+00
14/14 1.8E+01 8.8E+00 3.2E+01
14/14 6.8E+01 2.7E+01 1.1E+02
0/9 3.9E-03 2.3E-03 5.5E-03
5/9 6.4E-03 2.3E-03 1.2E-02
0/9 3.9E-03 2.3E-03 5.5E-03
0/9 2.7E-03 1.2E-03 5.5E-03
0/9 2.7E-03 1.2E-03 5.5E-03
0/9 2.7E-03 1.2E-03 5.5E-03
0/9 2.7E-03 1.2E-03 5.5E-03
0/10 1.1E+00 2.3E-01 3.5E+00
0/10 1.1E+00 2.3E-01 3.5E+00
na na na na
0/9 2.7E-03 1.2E-03 5.5E-03
0/9 3.9E-03 2.3E-03 5.5E-03
0/9 2.7E-03 1.2E-03 5.5E-03
0/9 3.9E-03 2.3E-03 5.5E-03
0/9 3.9E-03 2.3E-03 5.5E-03
0/9 3.9E-03 2.3E-03 5.5E-03
2/9 4.6E-03 2.3E-03 8.1E-03
0/9 3.9E-03 2.3E-03 5.5E-03
0/9 2.7E-03 1.2E-03 5.5E-03
0/9 2.7E-03 1.2E-03 5.5E-03
0/9 2.7E-03 1.2E-03 5.5E-03
0/9 2.7E-03 1.2E-03 5.5E-03
na na na na
na na na na
0/9 1.4E-02 2.3E-03 2.4E-02
0/9 1.6E-01 5.5E-02 2.4E-01
0/28 8.2E-01 2.3E-01 3.5E+00
2/15 1.5E+01 2.9E-01 2.1E+02
11/43 4.0E+01 3.0E-03 1.4E+03
19/43 2.6E+01 3.0E-03 8.5E+02
19/43 4.0E+00 2.0E-03 1.3E+02
0/22 6.7E-01 2.0E-01 6.5E+00
19/43 1.6E+01 4.0E-03 5.2E+02
Ogden River - Reach A
DF Avg Min Max
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
0/6 2.4E-03 2.1E-03 3.0E-03
0/6 2.4E-03 2.1E-03 3.0E-03
0/6 2.4E-03 2.1E-03 3.0E-03
0/6 1.3E-03 1.1E-03 1.5E-03
0/6 1.3E-03 1.1E-03 1.5E-03
0/6 1.3E-03 1.1E-03 1.5E-03
0/6 1.3E-03 1.1E-03 1.5E-03
0/2 1.7E+00 2.9E-01 3.1E+00
0/2 1.7E+00 2.9E-01 3.1E+00
na na na na
0/6 1.3E-03 1.1E-03 1.5E-03
0/6 2.4E-03 2.1E-03 3.0E-03
0/6 1.3E-03 1.1E-03 1.5E-03
0/6 2.4E-03 2.1E-03 3.0E-03
0/6 2.4E-03 2.1E-03 3.0E-03
0/6 2.4E-03 2.1E-03 3.0E-03
0/6 2.4E-03 2.1E-03 3.0E-03
0/6 2.4E-03 2.1E-03 3.0E-03
0/6 1.3E-03 1.1E-03 1.5E-03
0/6 1.3E-03 1.1E-03 1.5E-03
0/6 1.3E-03 1.1E-03 1.5E-03
0/6 1.3E-03 1.1E-03 1.5E-03
na na na na
na na na na
0/6 1.3E-02 1.1E-02 1.5E-02
0/6 1.3E-01 1.1E-01 1.5E-01
0/2 1.7E+00 2.9E-01 3.1E+00
na na na na
0/4 8.6E-01 8.5E-03 3.1E+00
1/8 5.1E-01 8.0E-03 3.1E+00
0/8 5.1E-01 8.5E-03 3.1E+00
na na na na
2/8 5.1E-01 3.1E-02 3.1E+00
Ogden River - Reach B
DF Avg Min Max
4/4 3.4E+03 2.4E+03 5.6E+03
0/4 1.1E+00 2.2E-01 3.6E+00
4/5 2.6E+00 1.7E+00 4.3E+00
4/5 4.4E+01 9.4E+00 l.OE+02
3/4 2.4E-01 1.7E-01 3.2E-01
1/5 2.1E-01 2.0E-02 7.0E-01
4/4 2.1E+04 1.7E+04 2.8E+04
5/5 6.4E+00 4.5E+00 l.OE+01
4/4 3.0E+00 2.3E+00 4.4E+00
4/4 1.4E+01 5.4E+00 3.8E+01
4/4 8.1E+03 6.6E+03 l.OE+04
5/5 2.0E+01 7.9E+00 4.2E+01
4/4 7.4E+03 5.6E+03 8.7E+03
4/4 2.3E+02 1.2E+02 5.3E+02
2/5 2.1E-02 5.0E-03 3.3E-02
4/4 6.7E+00 4.6E+00 9.3E+00
4/4 7.5E+02 4.3E+02 1.5E+03
1/5 1.4E+00 1.9E-01 5.8E+00
0/5 1.8E-01 7.0E-02 3.0E-01
4/4 9.7E+01 6.3E+01 1.7E+02
1/4 6.9E-01 4.1E-01 9.5E-01
4/4 8.0E+00 5.8E+00 1.3E+01
4/4 4.3E+01 3.0E+01 7.1E+01
0/6 3.8E-03 2.1E-03 8.0E-03
0/6 3.8E-03 2.1E-03 8.0E-03
1/6 4.3E-03 2.1E-03 8.0E-03
0/6 2.1E-03 1.2E-03 4.0E-03
0/6 2.1E-03 1.2E-03 4.0E-03
0/6 2.1E-03 1.2E-03 4.0E-03
0/5 1.8E-03 1.2E-03 2.9E-03
0/4 2.5E+00 2.2E-01 7.0E+00
0/3 l.OE+00 2.2E-01 1.5E+00
0/1 4.0E-02 4.0E-02 4.0E-02
0/6 2.1E-03 1.2E-03 4.0E-03
1/6 4.3E-03 2.1E-03 8.0E-03
0/6 2.1E-03 1.2E-03 4.0E-03
0/6 3.8E-03 2.1E-03 8.0E-03
0/6 3.8E-03 2.1E-03 8.0E-03
0/6 3.8E-03 2.1E-03 8.0E-03
0/6 3.8E-03 2.1E-03 8.0E-03
0/5 3.0E-03 2.1E-03 5.5E-03
0/6 2.1E-03 1.2E-03 4.0E-03
0/5 1.8E-03 1.2E-03 2.9E-03
0/6 2.1E-03 1.2E-03 4.0E-03
0/6 2.1E-03 1.2E-03 4.0E-03
0/1 4.0E-03 4.0E-03 4.0E-03
0/1 8.0E-03 8.0E-03 8.0E-03
0/6 1.8E-02 2.1E-03 4.0E-02
0/6 1.3E-01 5.5E-02 2.8E-01
0/8 7.3E-01 1.7E-01 1.5E+00
0/3 5.3E-01 4.4E-01 6.5E-01
0/12 5.1E-01 6.5E-03 1.5E+00
1/21 3.5E-01 6.5E-03 1.5E+00
1/21 3.6E-01 6.5E-03 1.5E+00
0/3 5.3E-01 4.4E-01 6.5E-01
9/21 3.3E-01 l.OE-02 1.5E+00
Ogden River - Reach C
DF Avg Min Max
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
0/3 2.2E-03 2.0E-03 2.4E-03
0/3 2.2E-03 2.0E-03 2.4E-03
1/3 3.5E-03 2.1E-03 6.1E-03
0/3 1.1E-03 l.OE-03 1.3E-03
0/3 1.1E-03 l.OE-03 1.3E-03
0/3 1.1E-03 l.OE-03 1.3E-03
0/3 1.1E-03 l.OE-03 1.3E-03
0/3 2.2E-01 2.1E-01 2.4E-01
0/3 2.2E-01 2.1E-01 2.4E-01
na na na na
0/3 1.1E-03 l.OE-03 1.3E-03
0/3 2.2E-03 2.0E-03 2.4E-03
0/3 1.1E-03 l.OE-03 1.3E-03
0/3 2.2E-03 2.0E-03 2.4E-03
0/3 2.2E-03 2.0E-03 2.4E-03
0/3 2.2E-03 2.0E-03 2.4E-03
1/3 3.0E-03 2.1E-03 4.6E-03
0/3 2.2E-03 2.0E-03 2.4E-03
0/3 1.1E-03 l.OE-03 1.3E-03
0/3 1.1E-03 l.OE-03 1.3E-03
0/3 1.1E-03 l.OE-03 1.3E-03
0/3 1.1E-03 l.OE-03 1.3E-03
na na na na
na na na na
0/3 1.1E-02 l.OE-02 1.3E-02
0/3 1.1E-01 l.OE-01 1.3E-01
0/3 2.2E-01 2.1E-01 2.4E-01
na na na na
0/6 1.2E-01 6.5E-03 2.4E-01
2/7 1.2E-01 3.0E-03 2.4E-01
0/7 1.3E-01 6.5E-03 2.4E-01
na na na na
4/7 1.2E-01 7.0E-03 2.4E-01
Reach Data Summ_Sed rev 12-6-02.xls: Table Sum
1/13/2003
                                                                                                                                                                                                                          Page 5 of 8

-------
                                                                                                                                 Appendix A-2
                                                                                                            Summary Statistics for Analytes in Site Sediment (mg/kg)
                                                                                                         Baseline Ecological Risk Assessment for the Ogden RailyardSite
T
ype


K
PH


















8
CM









Petroleum
Hydrocarbons






















y
Benzo[a]anthracene
Benzo[a]pyrene
Benzo[b]fluoranthene
Benzo[g,h,i]perylene
Benzo[k]fluoranthene
Chrysene
Dibenz[a,h]anthracene
Fluoranthene
Fluorene
Indeno[l,2,3-c,d]pyrene
Naphthalene
Phenanthrene
Pyrene
Aroclor-1016
Aroclor-1221
Aroclor-1232
Aroclor-1242
Aroclor-1248
Aroclor-1254
Aroclor-1260
Aroclor-1268
PCB-105
PCB-114
PCB-118
PCB-123
PCB-126
PCB-156
PCB-157
PCB-167
PCB-169
PCB-189
PCB-77
PCB-81
Total Petroleum Hydrocarbons (TPH)
1 ,2,4-Trichlorobenzene
1 ,2-Dichlorobenzene
1,3-Dichlorobenzene
1 ,4-Dichlorobenzene
2,2'-oxybis(l-Chloropropane)
2,4,5-Trichlorophenol
2,4,6-Trichlorophenol
2,4-Dichlorophenol
2,4-Dimethylphenol
2,4-Dinitrophenol
2,4-Dinitrotoluene
2,6-Dinitrotoluene
2-Chlorophenol
2-Methylphenol (o-Cresol)
2-Nitroaniline
2-Nitrophenol
3,3'-Dichlorobenzidine
3-Nitroaniline
4,6-Dinitro-o-cresol
4-Bromophenyl-phenyl ether
4-Chloro-3-Methylphenol
21st Street Pond
DF Avg Min Max
23/43 1.1E+01 5.0E-03 3.4E+02
29/43 1.2E+01 6.0E-03 3.5E+02
28/43 5.8E+00 5.0E-03 1.6E+02
28/43 7.3E+00 3.0E-03 2.0E+02
27/43 5.9E+00 5.0E-03 1.7E+02
28/43 1.2E+01 7.0E-03 3.6E+02
18/43 2.3E+00 3.0E-03 7.2E+01
29/43 2.0E+01 1.1E-02 6.4E+02
15/43 1.3E+01 3.0E-03 4.2E+02
27/43 5.7E+00 3.0E-03 1.6E+02
16/46 5.1E+01 4.0E-03 1.9E+03
22/43 5.6E+01 5.0E-03 1.9E+03
35/43 4.0E+01 1.6E-02 1.2E+03
0/16 6.7E-02 2.0E-02 5.5E-01
0/16 9.1E-02 2.0E-02 5.5E-01
0/16 6.7E-02 2.0E-02 5.5E-01
0/16 6.7E-02 2.0E-02 5.5E-01
0/16 6.7E-02 2.0E-02 5.5E-01
0/16 6.7E-02 2.0E-02 5.5E-01
5/16 8.2E-02 2.0E-02 5.5E-01
0/3 5.1E-02 2.8E-02 6.5E-02
1/1 2.6E+03 2.6E+03 2.6E+03
1/1 1.7E+02 1.7E+02 1.7E+02
1/1 7.2E+03 7.2E+03 7.2E+03
0/1 1.4E+01 1.4E+01 1.4E+01
1/1 4.5E+01 4.5E+01 4.5E+01
1/1 2.3E+03 2.3E+03 2.3E+03
1/1 3.1E+02 3.1E+02 3.1E+02
1/1 9.0E+02 9.0E+02 9.0E+02
0/1 9.8E+00 9.8E+00 9.8E+00
1/1 4.5E+02 4.5E+02 4.5E+02
1/1 1.6E+02 1.6E+02 1.6E+02
0/1 5.9E+00 5.9E+00 5.9E+00
1/1 1.1E+02 1.1E+02 1.1E+02
0/28 7.1E-01 7.5E-04 6.5E+00
0/28 7.1E-01 7.5E-04 6.5E+00
0/21 5.6E-01 7.5E-04 2.7E+00
0/28 7.1E-01 7.5E-04 6.5E+00
0/1 2.2E+00 2.2E+00 2.2E+00
0/28 1.4E+00 2.3E-01 9.0E+00
0/28 8.2E-01 2.3E-01 3.5E+00
0/28 8.2E-01 2.3E-01 3.5E+00
0/35 8.9E-01 2.0E-01 6.5E+00
0/28 2.3E+00 2.3E-01 9.0E+00
0/35 8.9E-01 2.0E-01 6.5E+00
0/35 8.9E-01 2.0E-01 6.5E+00
0/28 8.2E-01 2.3E-01 3.5E+00
0/35 8.9E-01 2.0E-01 6.5E+00
0/28 2.3E+00 2.3E-01 9.0E+00
0/28 8.2E-01 2.3E-01 3.5E+00
1/35 1.1E+00 3.7E-02 1.3E+01
0/28 2.3E+00 2.3E-01 9.0E+00
0/35 3.0E+00 2.3E-01 3.1E+01
0/13 1.3E+00 2.3E-01 3.5E+00
0/28 8.2E-01 2.3E-01 3.5E+00
Ogden River - Reach A
DF Avg Min Max
4/8 5.0E-01 8.8E-02 3.1E+00
4/8 5.0E-01 7.7E-02 3.1E+00
4/8 4.8E-01 5.7E-02 3.1E+00
3/8 5.0E-01 3.6E-02 3.1E+00
4/8 4.8E-01 5.9E-02 3.1E+00
4/8 5.1E-01 1.1E-01 3.1E+00
1/8 5.1E-01 2.4E-02 3.1E+00
6/8 5.2E-01 4.0E-02 3.1E+00
2/8 4.9E-01 7.0E-03 3.1E+00
3/8 5.0E-01 5.6E-02 3.1E+00
0/8 5.1E-01 8.5E-03 3.1E+00
4/8 5.1E-01 l.OE-01 3.1E+00
6/8 5.2E-01 4.1E-02 3.1E+00
0/10 3.0E-02 2.1E-02 4.7E-02
0/10 4.5E-02 2.5E-02 6.0E-02
0/10 3.0E-02 2.1E-02 4.7E-02
0/10 3.0E-02 2.1E-02 4.7E-02
0/10 3.0E-02 2.1E-02 4.7E-02
1/9 3.3E-02 2.1E-02 4.7E-02
0/10 3.0E-02 2.1E-02 4.7E-02
na na na na
2/2 1.1E+03 1.2E+02 2.1E+03
1/2 8.9E+01 4.7E+00 1.7E+02
2/2 2.8E+03 2.7E+02 5.4E+03
0/2 4.8E+00 4.7E+00 4.9E+00
0/2 4.8E+00 4.7E+00 4.9E+00
2/2 1.8E+02 2.5E+01 3.4E+02
1/2 4.4E+01 9.5E+00 7.9E+01
1/2 6.9E+01 9.5E+00 1.3E+02
0/2 9.7E+00 9.5E+00 9.9E+00
0/2 9.7E+00 9.5E+00 9.9E+00
2/2 8.3E+01 3.2E+01 1.3E+02
0/2 9.7E-01 9.5E-01 9.9E-01
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
0/2 4.1E+00 7.0E-01 7.5E+00
0/2 1.7E+00 2.9E-01 3.1E+00
0/2 1.7E+00 2.9E-01 3.1E+00
0/2 1.7E+00 2.9E-01 3.1E+00
0/2 4.1E+00 7.0E-01 7.5E+00
0/2 1.7E+00 2.9E-01 3.1E+00
0/2 1.7E+00 2.9E-01 3.1E+00
0/2 1.7E+00 2.9E-01 3.1E+00
0/2 1.7E+00 2.9E-01 3.1E+00
0/2 4.1E+00 7.0E-01 7.5E+00
0/2 1.7E+00 2.9E-01 3.1E+00
0/2 1.7E+00 2.9E-01 3.1E+00
0/2 4.1E+00 7.0E-01 7.5E+00
0/2 4.1E+00 7.0E-01 7.5E+00
0/2 1.7E+00 2.9E-01 3.1E+00
0/2 1.7E+00 2.9E-01 3.1E+00
Ogden River - Reach B
DF Avg Min Max
18/21 2.5E-01 3.7E-02 1.4E+00
17/21 2.6E-01 4.1E-02 1.4E+00
16/21 2.9E-01 3.3E-02 1.5E+00
10/21 3.3E-01 1.9E-02 1.5E+00
15/21 3.0E-01 2.4E-02 1.5E+00
18/21 2.9E-01 4.2E-02 1.4E+00
6/21 3.4E-01 l.OE-02 1.5E+00
18/21 3.7E-01 6.2E-02 1.4E+00
2/21 3.5E-01 6.5E-03 1.5E+00
14/21 3.2E-01 2.6E-02 1.5E+00
1/22 3.4E-01 2.7E-03 1.5E+00
16/21 3.4E-01 3.3E-02 1.5E+00
18/21 4.4E-01 6.4E-02 1.8E+00
0/15 1.3E-01 2.3E-02 5.5E-01
0/15 1.4E-01 2.9E-02 5.5E-01
0/15 1.3E-01 2.3E-02 5.5E-01
0/15 1.3E-01 2.3E-02 5.5E-01
0/15 1.3E-01 2.3E-02 5.5E-01
1/15 1.4E-01 2.3E-02 5.5E-01
11/15 6.9E-01 2.3E-02 4.2E+00
0/1 2.7E-02 2.7E-02 2.7E-02
2/2 4.5E+02 2.2E+02 6.7E+02
1/2 2.8E+01 8.5E+00 4.8E+01
2/2 3.0E+03 3.0E+03 3.1E+03
0/2 1.4E+01 4.9E+00 2.4E+01
1/2 7.8E+00 5.0E+00 1.1E+01
2/2 2.0E+03 2.0E+03 2.1E+03
2/2 1.4E+02 1.2E+02 1.6E+02
2/2 9.2E+02 8.6E+02 9.8E+02
0/2 9.4E+00 9.2E+00 9.7E+00
2/2 5.6E+02 5.0E+02 6.2E+02
1/2 3.5E+01 5.5E+00 6.5E+01
0/2 9.4E-01 9.2E-01 9.7E-01
na na na na
0/6 4.7E-01 6.7E-04 1.1E+00
0/6 4.7E-01 6.7E-04 1.1E+00
0/6 4.7E-01 6.7E-04 1.1E+00
0/6 4.7E-01 6.7E-04 1.1E+00
na na na na
0/8 1.3E+00 4.2E-01 3.6E+00
0/8 7.3E-01 1.7E-01 1.5E+00
0/8 7.3E-01 1.7E-01 1.5E+00
0/8 7.3E-01 1.7E-01 1.5E+00
0/8 2.1E+00 4.2E-01 3.6E+00
0/8 7.3E-01 1.7E-01 1.5E+00
0/8 7.3E-01 1.7E-01 1.5E+00
0/8 7.3E-01 1.7E-01 1.5E+00
0/8 7.3E-01 1.7E-01 1.5E+00
0/8 2.1E+00 4.2E-01 3.6E+00
0/8 7.3E-01 1.7E-01 1.5E+00
0/8 7.3E-01 1.7E-01 1.5E+00
0/8 2.1E+00 4.2E-01 3.6E+00
0/8 2.1E+00 4.2E-01 3.6E+00
0/4 l.OE+00 2.2E-01 1.5E+00
0/8 7.3E-01 1.7E-01 1.5E+00
Ogden River - Reach C
DF Avg Min Max
5/7 1.2E-01 2.4E-02 2.4E-01
5/7 1.2E-01 2.7E-02 2.4E-01
5/7 1.1E-01 1.8E-02 2.4E-01
5/7 l.OE-01 1.6E-02 2.4E-01
5/7 9.8E-02 1.7E-02 2.4E-01
6/7 l.OE-01 2.8E-02 2.2E-01
3/7 1.2E-01 5.0E-03 2.4E-01
7/7 1.4E-01 4.9E-02 3.2E-01
1/7 1.3E-01 3.0E-03 2.4E-01
5/7 9.5E-02 1.7E-02 2.4E-01
1/7 1.3E-01 2.0E-03 2.4E-01
5/7 1.9E-01 2.5E-02 3.6E-01
7/7 1.5E-01 4.6E-02 3.2E-01
0/4 3.2E-02 2.0E-02 6.5E-02
0/4 4.9E-02 4.0E-02 6.5E-02
0/4 3.2E-02 2.0E-02 6.5E-02
0/4 3.2E-02 2.0E-02 6.5E-02
0/4 3.2E-02 2.0E-02 6.5E-02
0/4 3.2E-02 2.0E-02 6.5E-02
3/4 1.1E-01 2.4E-02 2.3E-01
na na na na
1/1 1.9E+02 1.9E+02 1.9E+02
1/1 1.5E+01 1.5E+01 1.5E+01
1/1 9.2E+02 9.2E+02 9.2E+02
0/1 4.9E+00 4.9E+00 4.9E+00
0/1 4.9E+00 4.9E+00 4.9E+00
1/1 5.3E+02 5.3E+02 5.3E+02
1/1 4.4E+01 4.4E+01 4.4E+01
1/1 2.6E+02 2.6E+02 2.6E+02
0/1 9.8E+00 9.8E+00 9.8E+00
1/1 1.5E+02 1.5E+02 1.5E+02
0/1 8.1E+00 8.1E+00 8.1E+00
0/1 9.8E-01 9.8E-01 9.8E-01
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
0/3 5.5E-01 5.0E-01 6.0E-01
0/3 2.2E-01 2.1E-01 2.4E-01
0/3 2.2E-01 2.1E-01 2.4E-01
0/3 2.2E-01 2.1E-01 2.4E-01
0/3 5.5E-01 5.0E-01 6.0E-01
0/3 2.2E-01 2.1E-01 2.4E-01
0/3 2.2E-01 2.1E-01 2.4E-01
0/3 2.2E-01 2.1E-01 2.4E-01
0/3 2.2E-01 2.1E-01 2.4E-01
0/3 5.5E-01 5.0E-01 6.0E-01
0/3 2.2E-01 2.1E-01 2.4E-01
0/3 2.2E-01 2.1E-01 2.4E-01
0/3 5.5E-01 5.0E-01 6.0E-01
0/3 5.5E-01 5.0E-01 6.0E-01
0/3 2.2E-01 2.1E-01 2.4E-01
0/3 2.2E-01 2.1E-01 2.4E-01
Reach Data Summ_Sed rev 12-6-02.xls: Table Sum
1/13/2003
                                                                                                                                                                                                                          Page 6 of 8

-------
                                                                                                                                 Appendix A-2
                                                                                                            Summary Statistics for Analytes in Site Sediment (mg/kg)
                                                                                                         Baseline Ecological Risk Assessment for the Ogden RailyardSite
T
ype



o
0
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w



















































y
4-Chloroaniline
4-Chlorophenyl-phenyl ether
4-Methylphenol (p-Cresol)
4-Nitroaniline
4-Nitrophenol
Acetophenone
Benzaldehyde
Benzyl alcohol
Biphenyl
bis(2-Chloroethoxy)methane
bis(2-Chloroethyl)ether
bis(2-Chloroisopropyl)ether
bis(2-Ethylhexyl)phthalate
bis(n-octyl)phthalate
Butylbenzylphthalate
Carbazole
Dibenzofuran
Dibutylphthalate
Diethylphthalate
Dimethylphthalate
Hexachlorobenzene
Hexachlorobutadiene
Hexachlorocyclopentadiene
Hexachloroethane
Isophorone
Nitrobenzene
N-Nitrosodiphenylamine
n-Nitrosodipropylamine
Pentachlorophenol (PCP)
Phenol
1 , 1 ,1 ,2-Tetrachloroethane
1,1,1-Trichloroethane
1 , 1 ,2,2-Tetrachloroethane
1,1,2-Trichloroethane
1,1-Dichloroethane
1,1-Dichloroethene
1 , 1 -Dichloropropene
1,2,3-Trichlorobenzene
1,2,3-Trichloropropane
1,2,4-Trimethylbenzene
l,2-Dibromo-3-chloropropane(DBCP)
1,2-Dichloroethane
1,2-Dichloroethene
1,2-Dichloropropane
1,3,5-Trimethylbenzene
1,3-Dichloropropane
1,4-Dioxane
2,2-Dichloropropane
2-Chloro-l,3-butadiene (Chloroprene)
2-Chloroethyl vinyl ether
2-Chlorotoluene
2-Hexanone
3-Chloropropene (Allyl Chloride)
4-Chlorotoluene
Acetone
Acetonitrile
21st Street Pond
DF Avg Min Max
0/28 8.2E-01 2.3E-01 3.5E+00
0/28 8.2E-01 2.3E-01 3.5E+00
1/35 8.9E-01 2.0E-01 6.5E+00
0/28 2.3E+00 2.3E-01 9.0E+00
0/28 2.3E+00 2.3E-01 9.0E+00
0/10 1.1E+00 2.3E-01 3.5E+00
0/10 1.1E+00 2.3E-01 3.5E+00
0/3 1.8E+00 2.3E-01 2.7E+00
1/10 1.7E+00 2.3E-01 7.9E+00
0/28 8.2E-01 2.3E-01 3.5E+00
0/35 8.9E-01 2.0E-01 6.5E+00
0/19 1.2E+00 2.0E-01 6.5E+00
14/35 9.2E-01 4.0E-02 6.5E+00
1/35 8.9E-01 2.0E-01 6.5E+00
3/35 8.6E-01 9.6E-02 6.5E+00
5/35 8.9E-01 1.2E-01 6.9E+00
4/28 9.0E-01 1.2E-01 4.1E+00
2/35 8.8E-01 4.8E-02 6.5E+00
1/35 8.8E-01 4.4E-02 6.5E+00
0/28 8.2E-01 2.3E-01 3.5E+00
0/35 8.9E-01 2.0E-01 6.5E+00
0/38 8.2E-01 7.5E-04 6.5E+00
0/28 8.2E-01 2.3E-01 3.5E+00
0/35 8.9E-01 2.0E-01 6.5E+00
0/28 8.2E-01 2.3E-01 3.5E+00
0/35 8.9E-01 2.0E-01 6.5E+00
0/28 8.2E-01 2.3E-01 3.5E+00
0/35 8.9E-01 2.0E-01 6.5E+00
0/35 3.1E+00 2.3E-01 3.1E+01
0/35 8.9E-01 2.0E-01 6.5E+00
0/3 1.2E-03 7.5E-04 1.4E-03
0/19 4.8E-03 7.5E-04 8.5E-03
0/19 4.8E-03 7.5E-04 8.5E-03
0/19 4.8E-03 7.5E-04 8.5E-03
0/19 4.8E-03 7.5E-04 8.5E-03
0/3 1.2E-03 7.5E-04 1.4E-03
0/3 1.2E-03 7.5E-04 1.4E-03
0/3 1.2E-03 7.5E-04 1.4E-03
0/19 4.8E-03 7.5E-04 8.5E-03
1/3 4.1E-02 1.4E-03 1.2E-01
0/19 5.3E-03 7.5E-04 9.0E-03
0/19 4.8E-03 7.5E-04 8.5E-03
0/16 1.1E-02 6.5E-03 1.7E-02
0/19 4.8E-03 7.5E-04 8.5E-03
1/3 4.1E-02 1.4E-03 1.2E-01
0/3 1.2E-03 7.5E-04 1.4E-03
na na na na
0/3 1.2E-03 7.5E-04 1.4E-03
na na na na
0/16 6.0E-03 4.0E-03 9.0E-03
0/3 1.2E-03 7.5E-04 1.4E-03
0/19 9.6E-03 1.5E-03 1.7E-02
na na na na
0/3 1.2E-03 7.5E-04 1.4E-03
7/19 1.3E-02 3.0E-03 2.5E-02
0/16 2.1E-02 6.5E-03 3.5E-02
Ogden River - Reach A
DF Avg Min Max
0/2 1.7E+00 2.9E-01 3.1E+00
0/2 1.7E+00 2.9E-01 3.1E+00
1/2 9.9E-01 2.9E-01 1.7E+00
0/2 4.1E+00 7.0E-01 7.5E+00
0/2 4.1E+00 7.0E-01 7.5E+00
0/2 1.7E+00 2.9E-01 3.1E+00
0/2 1.7E+00 2.9E-01 3.1E+00
na na na na
0/2 1.7E+00 2.9E-01 3.1E+00
0/2 1.7E+00 2.9E-01 3.1E+00
0/2 1.7E+00 2.9E-01 3.1E+00
0/2 1.7E+00 2.9E-01 3.1E+00
0/2 1.7E+00 2.9E-01 3.1E+00
0/2 1.7E+00 2.9E-01 3.1E+00
0/2 1.7E+00 2.9E-01 3.1E+00
0/2 1.7E+00 2.9E-01 3.1E+00
0/2 1.7E+00 2.9E-01 3.1E+00
0/2 1.7E+00 2.9E-01 3.1E+00
0/2 1.7E+00 2.9E-01 3.1E+00
0/2 1.7E+00 2.9E-01 3.1E+00
0/2 1.7E+00 2.9E-01 3.1E+00
0/2 1.7E+00 2.9E-01 3.1E+00
0/2 1.7E+00 2.9E-01 3.1E+00
0/2 1.7E+00 2.9E-01 3.1E+00
0/2 1.7E+00 2.9E-01 3.1E+00
0/2 1.7E+00 2.9E-01 3.1E+00
0/2 1.7E+00 2.9E-01 3.1E+00
0/2 1.7E+00 2.9E-01 3.1E+00
0/2 4.1E+00 7.0E-01 7.5E+00
0/2 1.7E+00 2.9E-01 3.1E+00
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
Ogden River - Reach B
DF Avg Min Max
0/8 7.3E-01 1.7E-01 1.5E+00
0/8 7.3E-01 1.7E-01 1.5E+00
0/8 7.3E-01 1.7E-01 1.5E+00
0/8 2.1E+00 4.2E-01 3.6E+00
0/8 2.1E+00 4.2E-01 3.6E+00
0/3 l.OE+00 2.2E-01 1.5E+00
0/4 2.5E+00 2.2E-01 7.0E+00
0/1 1.1E+00 1.1E+00 1.1E+00
0/3 l.OE+00 2.2E-01 1.5E+00
0/8 7.3E-01 1.7E-01 1.5E+00
0/8 7.3E-01 1.7E-01 1.5E+00
0/5 8.5E-01 1.7E-01 1.5E+00
5/9 1.3E+00 9.6E-02 7.0E+00
0/8 7.3E-01 1.7E-01 1.5E+00
1/8 7.9E-01 2.2E-01 1.5E+00
1/8 6.8E-01 9.2E-02 1.5E+00
0/8 7.3E-01 1.7E-01 1.5E+00
0/8 7.3E-01 1.7E-01 1.5E+00
0/8 7.3E-01 1.7E-01 1.5E+00
0/8 7.3E-01 1.7E-01 1.5E+00
0/8 7.3E-01 1.7E-01 1.5E+00
0/9 6.5E-01 6.7E-04 1.5E+00
0/8 7.3E-01 1.7E-01 1.5E+00
0/8 7.3E-01 1.7E-01 1.5E+00
0/8 7.3E-01 1.7E-01 1.5E+00
0/8 7.3E-01 1.7E-01 1.5E+00
0/8 7.3E-01 1.7E-01 1.5E+00
0/8 7.3E-01 1.7E-01 1.5E+00
0/8 2.1E+00 4.2E-01 3.6E+00
0/8 7.3E-01 1.7E-01 1.5E+00
0/2 2.8E-03 6.7E-04 5.0E-03
0/4 2.9E-03 6.7E-04 5.0E-03
0/4 2.9E-03 6.7E-04 5.0E-03
0/4 2.9E-03 6.7E-04 5.0E-03
0/4 2.9E-03 6.7E-04 5.0E-03
0/1 6.7E-04 6.7E-04 6.7E-04
0/1 6.7E-04 6.7E-04 6.7E-04
0/1 6.7E-04 6.7E-04 6.7E-04
0/4 3.5E-03 6.7E-04 5.0E-03
0/1 6.7E-04 6.7E-04 6.7E-04
0/4 3.5E-03 6.7E-04 5.0E-03
0/4 2.9E-03 6.7E-04 5.0E-03
0/3 6.3E-03 2.5E-03 l.OE-02
0/4 2.9E-03 6.7E-04 5.0E-03
0/1 6.7E-04 6.7E-04 6.7E-04
0/1 6.7E-04 6.7E-04 6.7E-04
0/1 1.5E-01 1.5E-01 1.5E-01
0/1 6.7E-04 6.7E-04 6.7E-04
0/1 5.0E-03 5.0E-03 5.0E-03
0/3 4.5E-03 3.5E-03 5.0E-03
0/1 6.7E-04 6.7E-04 6.7E-04
0/4 5.7E-03 1.3E-03 l.OE-02
0/1 5.0E-03 5.0E-03 5.0E-03
0/1 6.7E-04 6.7E-04 6.7E-04
0/4 6.7E-03 5.0E-03 l.OE-02
0/3 1.9E-02 1.4E-02 2.5E-02
Ogden River - Reach C
DF Avg Min Max
0/3 2.2E-01 2.1E-01 2.4E-01
0/3 2.2E-01 2.1E-01 2.4E-01
1/3 2.7E-01 2.2E-01 3.5E-01
0/3 5.5E-01 5.0E-01 6.0E-01
0/3 5.5E-01 5.0E-01 6.0E-01
0/3 2.2E-01 2.1E-01 2.4E-01
0/3 2.2E-01 2.1E-01 2.4E-01
na na na na
0/3 2.2E-01 2.1E-01 2.4E-01
0/3 2.2E-01 2.1E-01 2.4E-01
0/3 2.2E-01 2.1E-01 2.4E-01
0/3 2.2E-01 2.1E-01 2.4E-01
2/3 2.9E-01 2.4E-01 3.6E-01
0/3 2.2E-01 2.1E-01 2.4E-01
0/3 2.2E-01 2.1E-01 2.4E-01
0/3 2.2E-01 2.1E-01 2.4E-01
0/3 2.2E-01 2.1E-01 2.4E-01
0/3 2.2E-01 2.1E-01 2.4E-01
0/3 2.2E-01 2.1E-01 2.4E-01
0/3 2.2E-01 2.1E-01 2.4E-01
0/3 2.2E-01 2.1E-01 2.4E-01
0/3 2.2E-01 2.1E-01 2.4E-01
0/3 2.2E-01 2.1E-01 2.4E-01
0/3 2.2E-01 2.1E-01 2.4E-01
0/3 2.2E-01 2.1E-01 2.4E-01
0/3 2.2E-01 2.1E-01 2.4E-01
0/3 2.2E-01 2.1E-01 2.4E-01
0/3 2.2E-01 2.1E-01 2.4E-01
0/3 5.5E-01 5.0E-01 6.0E-01
0/3 2.2E-01 2.1E-01 2.4E-01
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
Reach Data Summ_Sed rev 12-6-02.xls: Table Sum
1/13/2003
                                                                                                                                                                                                                          Page 7 of 8

-------
                                                                                                                                 Appendix A-2
                                                                                                            Summary Statistics for Analytes in Site Sediment (mg/kg)
                                                                                                         Baseline Ecological Risk Assessment for the Ogden RailyardSite
Type








R
£
















Analyte
Acrolein
Acrylonitrile
Benzene
Bromobenzene
Bromodichlorom ethane
Bromoform
Bromomethane (Methyl bromide)
Carbon Disulfide
Carbon Tetrachloride
Chlorobenzene
Chlorodibromomethane
Chloroethane (Ethyl chloride)
Chloroform
Chloromethane (Methyl chloride)
cis- 1 ,2-Dichloroethene
cis-l,3-Dichloropropene
Dibromom ethane
Dichlorodifluoromethane
Dichloromethane
Ethyl Methacrylate
Ethylbenzene
Ethylene dibromide (EDB)
Hexane
lodomethane
Isobutyl Alcohol
Isopropylbenzene
Methacrylonitrile
Methyl ethyl ketone (MEK)
Methyl isobutyl ketone (MIBK)
Methyl Methacrylate
Methyl -t-butyl ether (MTBE)
n-Butylbenzene
n-Propylbenzene
o-Xylene
sec-Butylbenzene
Styrene
tert-Butylbenzene
Tetrachloroethene
Toluene
trans-l,2-Dichloroethene
trans- 1 , 3 -Dichloropropene
trans-l,4-Dichloro-2-Butene
Trichloroethene
Trichlorofluoromethane
Vinyl Acetate
Vinyl Chloride
Xylenes (Total)
Xylenes-p,m
21st Street Pond
DF Avg Min Max
0/16 3.0E-02 1.6E-02 9.0E-02
0/16 2.2E-02 1.3E-02 3.5E-02
3/19 9.7E-03 1.4E-03 4.8E-02
0/3 1.2E-03 7.5E-04 1.4E-03
0/19 4.8E-03 7.5E-04 8.5E-03
0/19 4.8E-03 7.5E-04 8.5E-03
0/19 9.6E-03 1.5E-03 1.7E-02
0/19 4.8E-03 7.5E-04 8.5E-03
0/19 4.8E-03 7.5E-04 8.5E-03
0/19 4.8E-03 7.5E-04 8.5E-03
0/19 4.8E-03 7.5E-04 8.5E-03
0/19 9.0E-03 7.5E-04 1.7E-02
0/19 4.8E-03 7.5E-04 8.5E-03
0/19 9.4E-03 7.5E-04 1.7E-02
0/16 5.4E-03 3.0E-03 8.5E-03
0/22 4.3E-03 7.5E-04 8.5E-03
0/3 1.2E-03 7.5E-04 1.4E-03
2/3 3.9E-03 1.4E-03 6.3E-03
2/19 3.1E-03 1.4E-03 6.5E-03
na na na na
3/19 2.0E-02 1.4E-03 2.7E-01
0/19 5.3E-03 7.5E-04 9.0E-03
0/16 5.5E-03 3.0E-03 8.5E-03
na na na na
0/2 3.9E-02 3.3E-02 4.6E-02
2/6 8.6E-03 1.4E-03 4.0E-02
0/16 1.1E-02 6.5E-03 1.7E-02
1/5 6.9E-03 5.6E-03 9.0E-03
0/19 9.6E-03 1.5E-03 1.7E-02
na na na na
0/3 1.2E-03 7.5E-04 1.4E-03
0/3 1.2E-03 7.5E-04 1.4E-03
1/3 9.0E-03 1.4E-03 2.4E-02
1/3 2.8E-02 1.4E-03 8.1E-02
1/3 2.0E-03 1.4E-03 3.3E-03
0/19 4.8E-03 7.5E-04 8.5E-03
0/3 1.2E-03 7.5E-04 1.4E-03
0/19 4.8E-03 7.5E-04 8.5E-03
2/19 4.9E-03 1.4E-03 8.5E-03
0/19 4.7E-03 7.5E-04 8.5E-03
0/19 4.8E-03 7.5E-04 8.5E-03
na na na na
0/19 4.8E-03 7.5E-04 8.5E-03
0/19 9.0E-03 7.5E-04 1.7E-02
0/16 6.0E-03 4.0E-03 9.0E-03
0/19 9.4E-03 7.5E-04 1.7E-02
2/16 2.6E-02 9.5E-03 1.3E-01
1/3 1.8E-02 1.4E-03 5.1E-02
Ogden River - Reach A
DF Avg Min Max
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
Ogden River - Reach B
DF Avg Min Max
0/3 2.8E-02 1.4E-02 5.0E-02
0/3 1.9E-02 1.4E-02 2.5E-02
0/4 2.9E-03 6.7E-04 5.0E-03
0/1 6.7E-04 6.7E-04 6.7E-04
0/4 2.9E-03 6.7E-04 5.0E-03
0/4 2.9E-03 6.7E-04 5.0E-03
0/4 5.7E-03 1.3E-03 l.OE-02
0/4 2.9E-03 6.7E-04 5.0E-03
0/4 2.9E-03 6.7E-04 5.0E-03
0/4 2.9E-03 6.7E-04 5.0E-03
0/4 2.9E-03 6.7E-04 5.0E-03
0/4 5.5E-03 6.7E-04 l.OE-02
0/4 2.9E-03 6.7E-04 5.0E-03
0/4 5.5E-03 6.7E-04 l.OE-02
0/2 4.3E-03 3.5E-03 5.0E-03
0/5 2.5E-03 6.7E-04 5.0E-03
0/2 2.8E-03 6.7E-04 5.0E-03
1/2 3.6E-03 2.2E-03 5.0E-03
1/4 1.6E-03 6.7E-04 2.2E-03
0/1 2.5E-02 2.5E-02 2.5E-02
0/4 2.9E-03 6.7E-04 5.0E-03
0/4 3.5E-03 6.7E-04 5.0E-03
0/2 4.3E-03 3.5E-03 5.0E-03
0/1 5.0E-03 5.0E-03 5.0E-03
0/1 5.0E-02 5.0E-02 5.0E-02
0/2 6.7E-04 6.7E-04 6.7E-04
0/3 7.2E-03 5.0E-03 l.OE-02
0/2 3.8E-03 2.7E-03 5.0E-03
0/4 5.7E-03 1.3E-03 l.OE-02
0/1 5.0E-03 5.0E-03 5.0E-03
0/1 6.7E-04 6.7E-04 6.7E-04
0/1 6.7E-04 6.7E-04 6.7E-04
0/1 6.7E-04 6.7E-04 6.7E-04
0/1 6.7E-04 6.7E-04 6.7E-04
0/1 6.7E-04 6.7E-04 6.7E-04
0/4 2.9E-03 6.7E-04 5.0E-03
0/1 6.7E-04 6.7E-04 6.7E-04
0/4 2.9E-03 6.7E-04 5.0E-03
0/4 2.9E-03 6.7E-04 5.0E-03
0/3 3.1E-03 6.7E-04 5.0E-03
0/4 2.9E-03 6.7E-04 5.0E-03
0/1 5.0E-03 5.0E-03 5.0E-03
0/4 2.9E-03 6.7E-04 5.0E-03
0/4 4.9E-03 6.7E-04 l.OE-02
0/3 4.5E-03 3.5E-03 5.0E-03
0/4 5.5E-03 6.7E-04 l.OE-02
0/3 9.0E-03 2.5E-03 1.5E-02
0/1 6.7E-04 6.7E-04 6.7E-04
Ogden River - Reach C
DF Avg Min Max
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
Reach Data Summ_Sed rev 12-6-02.xls: Table Sum
1/13/2003
                                                                                                                                                                                                                          Page 8 of 8

-------
                                                                                                       Appendix A-3
                                                                                 Summary Statistics for Analytes in Site Surface Soil (mg/kg)
                                                                               BaseUneEcologicalRisk Assessment for the Ogden RailyardSite

Tvoe
1 JFC











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PH





















Aluminum
Antimony
Arsenic
Barium
Beryllium
Cadmium
Calcium
Chromium
Cobalt
Copper
Iron
Lead
Magnesium
Manganese
Mercury
Nickel
Potassium
Selenium
Silver
Sodium
Thallium
Vanadium
Zinc
4,4'-DDD
4,4'-DDE
4,4'-DDT
Aldrin
alpha-BHC
beta-BHC
alpha-Chlordane
Chlordane
delta-BHC
Dieldrin
Endosulfan I
Endosulfan II
Endosulfan Sulrate
Endrin
Endrin Aldehyde
Endrin ketone
gamma-BHC (Lindane)
Heptachlor
Heptachlor Epoxide
Isodrin
Kepone
Methoxychlor
Toxaphene
2-Chloronaphthalene
1-Methylnaphthalene
2-Methylnaphthalene
Acenaphthene
Acenaphthylene
Aniline
Anthracene
Benzo[a]anthracene
21st Street Pond

DF Avg Min Max
8/8 7.4E+03 6.2E+03 9.6E+03
0/8 9.7E-01 1.8E-01 3.8E+00
9/11 5.7E+00 2.5E+00 1.3E+01
5/11 8.6E+01 3.4E+01 2.6E+02
7/8 3.5E-01 2.1E-01 6.7E-01
3/11 3.8E-01 1.5E-02 1.9E+00
8/8 2.7E+04 2.1E+04 3.8E+04
11/11 1.2E+01 5.2E+00 2.0E+01
7/8 3.8E+00 1.4E+00 5.6E+00
8/8 2.4E+01 1.2E+01 9.4E+01
8/8 9.7E+03 7.4E+03 1.3E+04
11/11 6.8E+01 4.7E+00 2.2E+02
8/8 6.9E+03 5.1E+03 l.OE+04
8/8 2.4E+02 1.8E+02 3.6E+02
9/11 5.3E-02 1.5E-02 1.4E-01
8/8 l.OE+01 7.1E+00 1.6E+01
8/8 2.3E+03 1.7E+03 3.3E+03
5/11 9.6E-01 1.9E-01 4.0E+00
3/11 4.6E-01 5.5E-02 3.4E+00
8/8 1.6E+02 9.6E+01 4.5E+02
0/8 1.8E+00 2.0E-01 1.1E+01
8/8 1.6E+01 1.4E+01 2.3E+01
8/8 6.0E+01 3.6E+01 1.7E+02
0/7 2.0E-03 1.7E-03 2.9E-03
0/7 2.0E-03 1.7E-03 2.9E-03
4/7 7.2E-03 1.7E-03 1.5E-02
0/7 1.1E-03 8.5E-04 2.0E-03
0/7 1.1E-03 8.5E-04 2.0E-03
0/7 1.1E-03 8.5E-04 2.0E-03
0/7 1.1E-03 8.5E-04 2.0E-03
na na na na
0/7 1.1E-03 8.5E-04 2.0E-03
0/7 2.0E-03 1.7E-03 2.9E-03
0/7 1.1E-03 8.5E-04 2.0E-03
0/7 2.0E-03 1.7E-03 2.9E-03
0/7 2.0E-03 1.7E-03 2.9E-03
0/7 2.0E-03 1.7E-03 2.9E-03
3/7 5.1E-03 1.7E-03 9.8E-03
0/7 2.0E-03 1.7E-03 2.9E-03
0/7 1.1E-03 8.5E-04 2.0E-03
0/7 1.1E-03 8.5E-04 2.0E-03
0/7 1.1E-03 8.5E-04 2.0E-03
na na na na
na na na na
0/7 8.9E-03 2.0E-03 1.5E-02
0/7 9.3E-02 4.9E-02 1.5E-01
0/10 3.3E-01 1.7E-01 9.5E-01
1/7 2.0E-01 1.8E-01 2.3E-01
2/11 2.5E-01 l.OE-01 9.5E-01
2/11 2.7E-01 1.7E-01 9.5E-01
2/11 2.6E-01 3.6E-02 9.5E-01
0/8 2.8E-01 1.7E-01 9.0E-01
3/11 2.9E-01 8.7E-02 9.5E-01
2/11 3.7E-01 1.7E-01 1.4E+00
Weber River - Reach A

DF Avg Min Max
0/2 9.7E+03 6.5E+03 1.3E+04
2/2 4.6E+00 1.4E+00 7.7E+00
0/2 1.3E+01 3.5E+00 2.2E+01
0/2 1.4E+02 l.OE+02 1.9E+02
0/2 5.5E-01 1.6E-01 9.3E-01
0/2 4.2E+00 6.0E-01 7.7E+00
0/2 2.5E+04 1.8E+04 3.2E+04
0/2 1.5E+01 l.OE+01 1.9E+01
0/2 5.3E+00 3.1E+00 7.5E+00
0/2 4.8E+01 1.6E+01 8.0E+01
0/2 1.2E+04 7.9E+03 1.6E+04
0/2 5.1E+02 8.3E+01 9.4E+02
0/2 5.9E+03 4.0E+03 7.8E+03
0/2 4.1E+02 2.0E+02 6.3E+02
0/5 1.4E+00 2.0E-01 3.6E+00
0/2 1.2E+01 5.9E+00 1.9E+01
0/2 2.6E+03 2.1E+03 3.2E+03
0/2 2.3E-01 2.2E-01 2.5E-01
0/2 1.8E+00 1.1E-01 3.5E+00
0/2 1.1E+02 l.OE+02 1.1E+02
0/2 4.3E-01 2.5E-01 6.0E-01
0/2 1.9E+01 1.7E+01 2.2E+01
0/2 5.5E+02 1.5E+02 9.4E+02
0/1 2.0E-03 2.0E-03 2.0E-03
1/1 1.8E-03 1.8E-03 1.8E-03
0/1 2.0E-03 2.0E-03 2.0E-03
0/1 2.0E-03 2.0E-03 2.0E-03
0/1 2.0E-03 2.0E-03 2.0E-03
0/1 2.0E-03 2.0E-03 2.0E-03
0/1 2.0E-03 2.0E-03 2.0E-03
na na na na
0/1 2.0E-03 2.0E-03 2.0E-03
0/1 2.0E-03 2.0E-03 2.0E-03
0/1 2.0E-03 2.0E-03 2.0E-03
0/1 2.0E-03 2.0E-03 2.0E-03
0/1 2.0E-03 2.0E-03 2.0E-03
0/1 2.0E-03 2.0E-03 2.0E-03
0/1 2.0E-03 2.0E-03 2.0E-03
0/1 2.0E-03 2.0E-03 2.0E-03
0/1 2.0E-03 2.0E-03 2.0E-03
0/1 2.0E-03 2.0E-03 2.0E-03
0/1 2.0E-03 2.0E-03 2.0E-03
na na na na
na na na na
0/1 2.0E-03 2.0E-03 2.0E-03
0/1 5.0E-02 5.0E-02 5.0E-02
0/11 2.7E-01 1.8E-01 l.OE+00
0/10 1.5E-01 3.9E-02 2.0E-01
0/11 2.0E-01 4.8E-02 l.OE+00
0/11 2.7E-01 1.8E-01 l.OE+00
0/11 2.7E-01 1.8E-01 l.OE+00
0/10 1.9E-01 1.8E-01 2.1E-01
0/11 2.7E-01 1.8E-01 l.OE+00
0/11 2.7E-01 1.8E-01 l.OE+00
Weber River - Reach B

DF Avg Min Max
0/11 5.5E+03 2.8E+03 1.1E+04
0/11 1.6E+00 2.7E-01 3.7E+00
0/19 3.3E+00 2.1E+00 6.3E+00
0/19 9.5E+01 4.9E+01 1.7E+02
0/11 3.4E-01 1.7E-01 7.5E-01
0/19 8.3E-01 8.5E-02 2.2E+00
0/11 2.3E+04 1.4E+04 3.3E+04
0/19 8.5E+00 4.3E+00 1.6E+01
0/11 3.5E+00 2.2E+00 6.1E+00
0/11 2.2E+01 l.OE+01 6.2E+01
0/11 7.9E+03 4.6E+03 1.6E+04
0/19 7.2E+01 7.6E+00 1.7E+02
0/11 4.5E+03 2.7E+03 6.8E+03
0/11 2.5E+02 1.4E+02 4.8E+02
0/21 1.2E-01 2.0E-02 3.7E-01
0/11 7.4E+00 3.4E+00 1.4E+01
0/11 1.8E+03 1.2E+03 2.6E+03
0/19 1.3E+00 2.0E-01 2.5E+00
0/19 5.0E-01 6.5E-02 1.4E+00
0/11 2.7E+02 7.7E+01 9.3E+02
0/11 4.5E-01 2.2E-01 7.5E-01
0/11 1.2E+01 8.1E+00 2.0E+01
0/11 1.1E+02 8.6E+01 2.4E+02
0/8 4.3E-03 1.9E-03 8.0E-03
0/8 4.3E-03 1.9E-03 8.0E-03
0/8 4.3E-03 1.9E-03 8.0E-03
0/8 2.8E-03 1.9E-03 4.0E-03
0/8 2.8E-03 1.9E-03 4.0E-03
0/8 2.8E-03 1.9E-03 4.0E-03
0/5 2.1E-03 1.9E-03 2.4E-03
0/3 4.0E-02 4.0E-02 4.0E-02
0/8 2.8E-03 1.9E-03 4.0E-03
0/8 4.3E-03 1.9E-03 8.0E-03
0/8 2.8E-03 1.9E-03 4.0E-03
0/8 4.3E-03 1.9E-03 8.0E-03
0/8 4.3E-03 1.9E-03 8.0E-03
0/8 4.3E-03 1.9E-03 8.0E-03
0/8 4.3E-03 1.9E-03 8.0E-03
0/5 2.1E-03 1.9E-03 2.4E-03
0/8 2.8E-03 1.9E-03 4.0E-03
0/8 2.8E-03 1.9E-03 4.0E-03
0/8 2.8E-03 1.9E-03 4.0E-03
0/3 4.0E-03 4.0E-03 4.0E-03
0/3 8.0E-03 8.0E-03 8.0E-03
0/8 1.6E-02 1.9E-03 4.0E-02
0/8 6.3E-02 4.6E-02 8.0E-02
0/23 3.8E-01 1.7E-01 1.2E+00
0/10 2.3E-01 1.8E-01 5.5E-01
0/23 3.8E-01 4.1E-02 1.2E+00
0/23 3.8E-01 1.7E-01 1.2E+00
0/23 3.8E-01 1.7E-01 1.2E+00
0/10 2.3E-01 1.8E-01 5.5E-01
0/23 3.7E-01 6.9E-02 1.2E+00
0/23 4.0E-01 1.7E-01 1.2E+00
Weber River - Reach C

DF Avg Min Max
0/11 4.9E+03 2.1E+03 7.7E+03
0/11 6.0E-01 2.3E-01 2.8E+00
0/14 4.7E+00 1.6E+00 2.4E+01
0/14 9.1E+01 3.0E+01 1.3E+02
0/11 2.7E-01 1.3E-01 4.2E-01
0/14 6.8E-01 8.2E-02 4.1E+00
0/11 2.2E+04 1.3E+04 3.4E+04
0/14 8.1E+00 4.8E+00 1.1E+01
0/11 3.1E+00 1.9E+00 4.3E+00
0/11 1.7E+01 6.0E+00 4.9E+01
0/11 6.8E+03 4.6E+03 9.1E+03
0/14 8.6E+01 1.6E+01 5.8E+02
0/11 4.3E+03 2.7E+03 5.6E+03
0/11 2.1E+02 9.5E+01 3.4E+02
0/14 1.8E-01 5.4E-02 8.8E-01
0/11 6.1E+00 3.4E+00 1.6E+01
0/11 1.6E+03 1.1E+03 2.3E+03
0/14 9.7E-01 2.0E-01 2.5E+00
0/14 5.7E-01 1.3E-01 4.3E+00
0/11 1.1E+02 7.1E+01 2.2E+02
0/11 5.6E-01 2.0E-01 6.5E-01
0/11 1.1E+01 5.2E+00 1.6E+01
0/11 9.0E+01 3.0E+01 1.3E+02
0/2 4.9E-03 1.9E-03 8.0E-03
0/2 4.9E-03 1.9E-03 8.0E-03
0/2 4.9E-03 1.9E-03 8.0E-03
0/2 2.9E-03 1.9E-03 4.0E-03
0/2 2.9E-03 1.9E-03 4.0E-03
0/2 2.9E-03 1.9E-03 4.0E-03
0/1 1.9E-03 1.9E-03 1.9E-03
0/1 4.0E-02 4.0E-02 4.0E-02
0/2 2.9E-03 1.9E-03 4.0E-03
0/2 4.9E-03 1.9E-03 8.0E-03
0/2 2.9E-03 1.9E-03 4.0E-03
0/2 4.9E-03 1.9E-03 8.0E-03
0/2 4.9E-03 1.9E-03 8.0E-03
0/2 4.9E-03 1.9E-03 8.0E-03
0/2 4.9E-03 1.9E-03 8.0E-03
0/1 1.9E-03 1.9E-03 1.9E-03
0/2 2.9E-03 1.9E-03 4.0E-03
0/2 2.9E-03 1.9E-03 4.0E-03
0/2 2.9E-03 1.9E-03 4.0E-03
0/1 4.0E-03 4.0E-03 4.0E-03
0/1 8.0E-03 8.0E-03 8.0E-03
0/2 2.1E-02 1.9E-03 4.0E-02
0/2 6.3E-02 4.6E-02 8.0E-02
0/14 2.4E-01 1.7E-01 9.0E-01
0/10 2.0E-01 1.8E-01 2.2E-01
0/14 2.4E-01 1.7E-01 9.0E-01
0/14 2.4E-01 1.7E-01 9.0E-01
0/14 2.4E-01 1.7E-01 9.0E-01
0/10 2.0E-01 1.8E-01 2.2E-01
0/14 2.4E-01 1.7E-01 9.0E-01
0/14 2.2E-01 3.6E-02 9.0E-01
Weber River - Reach D

DF Avg Min Max
0/12 5.9E+03 3.0E+03 9.1E+03
0/12 1.6E+00 1.8E-01 8.0E+00
0/14 3.3E+00 1.8E+00 7.0E+00
0/14 1.1E+02 5.6E+01 1.7E+02
0/12 1.8E-01 2.2E-02 3.0E-01
0/14 3.1E-01 1.5E-02 7.9E-01
0/12 2.2E+04 1.3E+04 3.3E+04
0/14 l.OE+01 5.2E+00 1.6E+01
0/12 3.0E+00 1.7E+00 4.3E+00
0/12 3.3E+01 5.9E+00 l.OE+02
0/12 8.2E+03 4.6E+03 1.6E+04
0/14 7.2E+01 2.1E+01 2.7E+02
0/12 4.4E+03 2.5E+03 6.1E+03
0/12 2.0E+02 1.1E+02 2.9E+02
0/14 l.OE-01 1.8E-02 3.9E-01
0/12 7.1E+00 3.0E+00 1.1E+01
0/12 1.8E+03 9.8E+02 3.2E+03
0/14 5.7E-01 1.9E-01 2.5E+00
0/14 1.7E-01 5.5E-02 7.0E-01
0/12 1.4E+02 8.1E+01 2.5E+02
0/12 5.0E-01 2.1E-01 6.0E-01
0/12 1.6E+01 9.8E+00 2.2E+01
0/12 l.OE+02 4.4E+01 2.1E+02
0/4 5.0E-03 2.0E-03 8.0E-03
0/4 5.0E-03 2.0E-03 8.0E-03
0/4 5.0E-03 2.0E-03 8.0E-03
0/4 3.0E-03 2.0E-03 4.0E-03
0/4 3.0E-03 2.0E-03 4.0E-03
0/4 3.0E-03 2.0E-03 4.0E-03
0/2 2.0E-03 2.0E-03 2.1E-03
0/2 4.0E-02 4.0E-02 4.0E-02
0/4 3.0E-03 2.0E-03 4.0E-03
0/4 5.0E-03 2.0E-03 8.0E-03
0/4 3.0E-03 2.0E-03 4.0E-03
0/4 5.0E-03 2.0E-03 8.0E-03
0/4 5.0E-03 2.0E-03 8.0E-03
0/4 5.0E-03 2.0E-03 8.0E-03
0/4 5.0E-03 2.0E-03 8.0E-03
0/2 2.0E-03 2.0E-03 2.1E-03
0/4 3.0E-03 2.0E-03 4.0E-03
0/4 3.0E-03 2.0E-03 4.0E-03
0/4 3.0E-03 2.0E-03 4.0E-03
0/2 4.0E-03 4.0E-03 4.0E-03
0/2 8.0E-03 8.0E-03 8.0E-03
0/4 2.1E-02 2.0E-03 4.0E-02
0/4 6.5E-02 4.9E-02 8.0E-02
0/14 3.0E-01 1.7E-01 1.1E+00
0/10 1.9E-01 1.3E-01 2.1E-01
0/14 3.0E-01 1.6E-01 1.1E+00
0/14 3.0E-01 1.7E-01 1.1E+00
0/14 3.0E-01 1.7E-01 1.1E+00
0/10 1.9E-01 1.8E-01 2.1E-01
0/14 3.0E-01 1.7E-01 1.1E+00
0/14 2.8E-01 3.6E-02 1.1E+00
Reach Data Summ_Soil rev 12-6-02.xls: Table Summ
1/13/2003
                                                                                                                                                                                                                     Page 1 of 4

-------
                                                                                                       Appendix A-3
                                                                                 Summary Statistics for Analytes in Site Surface Soil (mg/kg)
                                                                               BaseUneEcologicalRisk Assessment for the Ogden RailyardSite

Tvoe
1 JFC

1













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c^



Petroleum
Hydrocarbons























y
o
™










Benzo[a]pyrene
Benzo[b]fluoranthene
Benzo[g,h,i]perylene
Benzo[k]fluoranthene
Chrysene
Dibenz[a,h]anthracene
Fluoranthene
Fluorene
Indeno[l,2,3-c,d]pyrene
Naphthalene
Phenanthrene
Pyrene
Aroclor-1016
Aroclor-1221
Aroclor-1232
Aroclor-1242
Aroclor-1248
Aroclor-1254
Aroclor-1260
Aroclor-1268
Diesel fuel
Total Petroleum Hydrocarbons (TPH)
1,2,4-Trichlorobenzene
1,2-Dichlorobenzene
1,3-Dichlorobenzene
1,4-Dichlorobenzene
2,4,5-Trichlorophenol
2,4,6-Trichlorophenol
2,4-Dichlorophenol
2,4-Dimethylphenol
2,4-Dinitrophenol
2,4-Dinitrotoluene
2,6-Dinitrotoluene
2-Chlorophenol
2-Methylphenol (o-Cresol)
2-Nitroaniline
2-Nitrophenol
3,3'-Dichlorobenzidine
3-Nitroaniline
4,6-Dinitro-o-cresol
4-Bromophenyl-phenylether
4-Chloro-3-Methylphenol
4-Chloroaniline
4-Chlorophenyl-phenylether
4-Methylphenol (p-Cresol)

4-Nitroaniline
4-Nitrophenol
Benzyl alcohol
bis(2-Chloroethoxy)methane
bis(2-Chloroethyl)ether
bis(2-Chloroisopropyl)ether
bis(2-Ethylhexyl)phthalate
bis(n-octyl)phthalate
Butylbenzylphthalate
21st Street Pond

DF Avg Min Max
3/11 3.9E-01 4.4E-02 1.6E+00
3/11 3.6E-01 5.2E-02 1.2E+00
3/11 4.1E-01 6.3E-02 1.6E+00
2/11 4.0E-01 1.7E-01 1.6E+00
3/11 4.5E-01 4.2E-02 2.1E+00
1/11 3.1E-01 9.6E-02 9.5E-01
4/11 4.6E-01 5.0E-02 2.3E+00
2/11 2.5E-01 l.OE-01 9.5E-01
2/11 4.0E-01 1.7E-01 1.5E+00
3/12 2.2E-01 2.1E-03 9.5E-01
5/11 4.5E-01 4.2E-02 2.3E+00
7/11 6.1E-01 4.7E-02 3.7E+00
0/7 2.0E-02 1.7E-02 2.9E-02
0/7 4.1E-02 3.4E-02 6.0E-02
0/7 2.0E-02 1.7E-02 2.9E-02
0/7 2.0E-02 1.7E-02 2.9E-02
0/7 2.0E-02 1.7E-02 2.9E-02
0/7 2.0E-02 1.7E-02 2.9E-02
5/7 1.8E-01 1.7E-02 5.5E-01
0/1 2.4E-02 2.4E-02 2.4E-02
0/2 3.3E+00 3.3E+00 3.3E+00
na na na na
0/12 2.9E-01 5.2E-04 9.5E-01
0/12 2.9E-01 5.2E-04 9.5E-01
0/11 3.0E-01 5.2E-04 9.5E-01
0/12 2.9E-01 5.2E-04 9.5E-01
0/10 3.8E-01 1.8E-01 9.5E-01
0/10 3.3E-01 1.7E-01 9.5E-01
0/10 3.3E-01 1.7E-01 9.5E-01
0/10 3.3E-01 1.7E-01 9.5E-01
0/10 1.2E+00 4.2E-01 4.5E+00
0/11 3.2E-01 1.7E-01 9.5E-01
0/11 3.2E-01 1.7E-01 9.5E-01
0/10 3.3E-01 1.7E-01 9.5E-01
0/10 3.3E-01 1.7E-01 9.5E-01
0/10 1.2E+00 4.2E-01 4.5E+00
0/10 3.3E-01 1.7E-01 9.5E-01
0/11 3.3E-01 1.7E-01 9.5E-01
0/10 1.2E+00 4.2E-01 4.5E+00
0/10 1.2E+00 4.2E-01 4.5E+00
0/1 9.5E-01 9.5E-01 9.5E-01
0/10 3.3E-01 1.7E-01 9.5E-01
0/10 3.3E-01 1.7E-01 9.5E-01
0/10 3.3E-01 1.7E-01 9.5E-01
1/10 3.3E-01 1.1E-01 9.5E-01

0/10 1.2E+00 4.2E-01 4.5E+00
0/10 1.2E+00 4.2E-01 4.5E+00
0/1 9.5E-01 9.5E-01 9.5E-01
0/10 3.3E-01 1.7E-01 9.5E-01
0/11 3.2E-01 1.7E-01 9.5E-01
0/4 3.6E-01 1.7E-01 9.5E-01
8/11 3.6E-01 4.5E-02 1.5E+00
0/11 3.2E-01 1.7E-01 9.5E-01
3/11 2.8E-01 5.0E-02 9.5E-01
Weber River - Reach A

DF Avg Min Max
0/11 2.7E-01 1.8E-01 l.OE+00
0/11 2.7E-01 1.8E-01 l.OE+00
0/11 2.7E-01 1.8E-01 l.OE+00
0/11 2.7E-01 1.8E-01 l.OE+00
0/11 2.4E-01 4.6E-02 l.OE+00
0/11 2.7E-01 1.8E-01 l.OE+00
0/11 2.5E-01 6.2E-02 l.OE+00
0/11 2.7E-01 1.8E-01 l.OE+00
0/11 2.7E-01 1.8E-01 l.OE+00
0/12 1.6E-01 3.3E-03 l.OE+00
0/11 2.5E-01 3.9E-02 l.OE+00
0/11 2.5E-01 6.7E-02 l.OE+00
0/1 2.6E-02 2.6E-02 2.6E-02
0/1 5.0E-02 5.0E-02 5.0E-02
0/1 2.6E-02 2.6E-02 2.6E-02
0/1 2.6E-02 2.6E-02 2.6E-02
0/1 2.6E-02 2.6E-02 2.6E-02
0/1 2.6E-02 2.6E-02 2.6E-02
0/1 2.6E-02 2.6E-02 2.6E-02
0/1 2.6E-02 2.6E-02 2.6E-02
na na na na
na na na na
0/12 2.4E-01 8.2E-04 l.OE+00
0/12 2.4E-01 8.2E-04 l.OE+00
0/12 2.4E-01 8.2E-04 l.OE+00
0/12 2.4E-01 8.2E-04 l.OE+00
0/11 2.7E-01 1.8E-01 l.OE+00
0/11 2.7E-01 1.8E-01 l.OE+00
0/11 2.7E-01 1.8E-01 l.OE+00
0/11 2.7E-01 1.8E-01 l.OE+00
0/11 9.5E-01 8.5E-01 l.OE+00
0/11 2.7E-01 1.8E-01 l.OE+00
0/11 2.7E-01 1.8E-01 l.OE+00
0/11 2.7E-01 1.8E-01 l.OE+00
0/11 2.7E-01 1.8E-01 l.OE+00
0/11 9.5E-01 8.5E-01 l.OE+00
0/11 2.7E-01 1.8E-01 l.OE+00
0/11 2.7E-01 1.8E-01 l.OE+00
0/11 9.5E-01 8.5E-01 l.OE+00
0/11 9.5E-01 8.5E-01 l.OE+00
0/1 l.OE+00 l.OE+00 l.OE+00
0/11 2.7E-01 1.8E-01 l.OE+00
0/11 2.7E-01 1.8E-01 l.OE+00
0/11 2.7E-01 1.8E-01 l.OE+00
0/11 2.7E-01 1.8E-01 l.OE+00

0/11 9.5E-01 8.5E-01 l.OE+00
0/11 9.5E-01 8.5E-01 l.OE+00
0/1 l.OE+00 l.OE+00 l.OE+00
0/11 2.7E-01 1.8E-01 l.OE+00
0/11 2.7E-01 1.8E-01 l.OE+00
0/1 l.OE+00 l.OE+00 l.OE+00
0/11 2.7E-01 1.8E-01 l.OE+00
0/11 2.7E-01 1.8E-01 l.OE+00
0/11 2.3E-01 4.5E-02 l.OE+00
Weber River - Reach B

DF Avg Min Max
0/23 4.0E-01 1.7E-01 1.2E+00
0/23 3.9E-01 4.3E-02 1.2E+00
0/23 3.4E-01 3.9E-02 1.2E+00
0/23 3.9E-01 1.7E-01 1.2E+00
0/23 3.9E-01 4.9E-02 1.2E+00
0/23 3.8E-01 9.0E-02 1.2E+00
0/23 4.2E-01 3.9E-02 1.2E+00
0/23 3.8E-01 1.7E-01 1.2E+00
0/23 3.9E-01 1.7E-01 1.2E+00
0/28 3.0E-01 2.6E-03 1.2E+00
0/23 3.8E-01 4.1E-02 1.2E+00
0/23 4.0E-01 6.1E-02 1.2E+00
0/8 3.1E-02 2.3E-02 4.0E-02
0/8 4.8E-02 4.0E-02 6.0E-02
0/8 3.1E-02 2.3E-02 4.0E-02
0/8 3.1E-02 2.3E-02 4.0E-02
0/8 3.1E-02 2.3E-02 4.0E-02
0/8 3.1E-02 2.3E-02 4.0E-02
0/8 6.0E-02 2.3E-02 2.6E-01
0/5 2.6E-02 2.3E-02 3.0E-02
4/5 6.7E+00 2.5E+00 9.7E+00
na na na na
0/28 3.2E-01 6.6E-04 1.2E+00
0/28 3.2E-01 6.6E-04 1.2E+00
0/28 3.2E-01 6.6E-04 1.2E+00
0/28 3.2E-01 6.6E-04 1.2E+00
0/23 4.7E-01 1.8E-01 1.2E+00
0/23 3.8E-01 1.7E-01 1.2E+00
0/23 3.8E-01 1.7E-01 1.2E+00
0/23 3.8E-01 1.7E-01 1.2E+00
0/23 8.6E-01 4.2E-01 2.7E+00
0/23 3.8E-01 1.7E-01 1.2E+00
0/23 3.8E-01 1.7E-01 1.2E+00
0/23 3.8E-01 1.7E-01 1.2E+00
0/23 3.8E-01 1.7E-01 1.2E+00
0/23 8.6E-01 4.2E-01 2.7E+00
0/23 3.8E-01 1.7E-01 1.2E+00
1/23 3.8E-01 4.3E-02 1.2E+00
0/23 8.6E-01 4.2E-01 2.7E+00
0/23 8.6E-01 4.2E-01 2.7E+00
0/5 l.OE+00 9.0E-01 1.2E+00
0/23 3.8E-01 1.7E-01 1.2E+00
0/23 3.8E-01 1.7E-01 1.2E+00
0/23 3.8E-01 1.7E-01 1.2E+00
0/23 3.8E-01 1.7E-01 1.2E+00

0/23 8.6E-01 4.2E-01 2.7E+00
0/23 8.6E-01 4.2E-01 2.7E+00
0/5 l.OE+00 9.0E-01 1.2E+00
0/23 3.8E-01 1.7E-01 1.2E+00
0/23 3.8E-01 1.7E-01 1.2E+00
0/13 5.0E-01 1.7E-01 1.2E+00
0/23 2.2E-01 3.7E-02 9.5E-01
1/23 3.8E-01 5.1E-02 1.2E+00
0/23 3.7E-01 3.8E-02 1.2E+00
Weber River - Reach C

DF Avg Min Max
0/14 2.3E-01 4.0E-02 9.0E-01
0/14 2.3E-01 3.8E-02 9.0E-01
0/14 2.3E-01 5.4E-02 9.0E-01
0/14 2.3E-01 4.3E-02 9.0E-01
0/14 2.3E-01 4.5E-02 9.0E-01
0/14 2.4E-01 1.7E-01 9.0E-01
0/14 2.3E-01 6.3E-02 9.0E-01
0/14 2.4E-01 1.7E-01 9.0E-01
0/14 2.3E-01 4.6E-02 9.0E-01
0/15 2.3E-01 3.5E-03 9.0E-01
0/14 2.1E-01 4.5E-02 9.0E-01
0/14 2.0E-01 5.5E-02 9.0E-01
0/2 3.2E-02 2.3E-02 4.0E-02
0/2 4.3E-02 4.0E-02 4.6E-02
0/2 3.2E-02 2.3E-02 4.0E-02
0/2 3.2E-02 2.3E-02 4.0E-02
0/2 3.2E-02 2.3E-02 4.0E-02
0/2 3.2E-02 2.3E-02 4.0E-02
0/2 3.2E-02 2.3E-02 4.0E-02
0/1 2.3E-02 2.3E-02 2.3E-02
na na na na
na na na na
0/15 2.3E-01 8.7E-04 9.0E-01
0/15 2.3E-01 8.7E-04 9.0E-01
0/15 2.3E-01 8.7E-04 9.0E-01
0/15 2.3E-01 8.7E-04 9.0E-01
0/14 3.0E-01 1.8E-01 9.0E-01
0/14 2.4E-01 1.7E-01 9.0E-01
0/14 2.4E-01 1.7E-01 9.0E-01
0/14 2.4E-01 1.7E-01 9.0E-01
0/14 8.5E-01 4.2E-01 1.1E+00
0/14 2.4E-01 1.7E-01 9.0E-01
0/14 2.4E-01 1.7E-01 9.0E-01
0/14 2.4E-01 1.7E-01 9.0E-01
0/14 2.4E-01 1.7E-01 9.0E-01
0/14 8.5E-01 4.2E-01 1.1E+00
0/14 2.4E-01 1.7E-01 9.0E-01
0/14 2.4E-01 1.7E-01 9.0E-01
0/14 8.5E-01 4.2E-01 1.1E+00
0/14 8.5E-01 4.2E-01 1.1E+00
0/1 9.0E-01 9.0E-01 9.0E-01
0/14 2.4E-01 1.7E-01 9.0E-01
0/14 2.4E-01 1.7E-01 9.0E-01
0/14 2.4E-01 1.7E-01 9.0E-01
0/14 2.4E-01 1.7E-01 9.0E-01

0/14 8.5E-01 4.2E-01 1.1E+00
0/14 8.5E-01 4.2E-01 1.1E+00
0/1 9.0E-01 9.0E-01 9.0E-01
0/14 2.4E-01 1.7E-01 9.0E-01
0/14 2.4E-01 1.7E-01 9.0E-01
0/4 3.5E-01 1.7E-01 9.0E-01
0/14 2.1E-01 7.2E-02 4.0E-01
0/14 2.4E-01 1.7E-01 9.0E-01
0/14 2.4E-01 1.7E-01 9.0E-01
Weber River - Reach D

DF Avg Min Max
0/14 2.9E-01 3.6E-02 1.1E+00
0/14 2.8E-01 5.7E-02 1.1E+00
0/14 2.7E-01 3.7E-02 1.1E+00
0/14 2.9E-01 5.4E-02 1.1E+00
0/14 2.8E-01 6.8E-02 1.1E+00
0/14 3.0E-01 5.1E-02 1.1E+00
0/14 2.8E-01 6.9E-02 1.1E+00
0/14 3.0E-01 1.7E-01 1.1E+00
0/14 3.0E-01 3.5E-02 1.1E+00
0/16 2.6E-01 2.7E-03 1.1E+00
0/14 2.7E-01 4.4E-02 1.1E+00
0/14 2.6E-01 4.5E-02 1.1E+00
0/4 3.2E-02 2.4E-02 4.0E-02
0/4 4.5E-02 4.0E-02 5.0E-02
0/4 3.2E-02 2.4E-02 4.0E-02
0/4 3.2E-02 2.4E-02 4.0E-02
0/4 3.2E-02 2.4E-02 4.0E-02
0/4 3.2E-02 2.4E-02 4.0E-02
0/4 3.2E-02 2.4E-02 4.0E-02
0/2 2.5E-02 2.4E-02 2.6E-02
na na na na
na na na na
0/16 2.7E-01 6.9E-04 1.1E+00
0/16 2.7E-01 6.9E-04 1.1E+00
0/16 2.7E-01 6.9E-04 1.1E+00
0/16 2.7E-01 6.9E-04 1.1E+00
0/14 3.4E-01 1.8E-01 1.1E+00
0/14 3.0E-01 1.7E-01 1.1E+00
0/14 3.0E-01 1.7E-01 1.1E+00
0/14 3.0E-01 1.7E-01 1.1E+00
0/14 8.7E-01 4.2E-01 1.1E+00
0/14 3.0E-01 1.7E-01 1.1E+00
0/14 3.0E-01 1.7E-01 1.1E+00
0/14 3.0E-01 1.7E-01 1.1E+00
0/14 3.0E-01 1.7E-01 1.1E+00
0/14 8.7E-01 4.2E-01 1.1E+00
0/14 3.0E-01 1.7E-01 1.1E+00
0/14 3.0E-01 1.7E-01 1.1E+00
0/14 8.7E-01 4.2E-01 1.1E+00
0/14 8.7E-01 4.2E-01 1.1E+00
0/2 l.OE+00 9.5E-01 1.1E+00
0/14 3.0E-01 1.7E-01 1.1E+00
0/14 3.0E-01 1.7E-01 1.1E+00
0/14 3.0E-01 1.7E-01 1.1E+00
0/14 3.0E-01 1.7E-01 1.1E+00

0/14 8.7E-01 4.2E-01 1.1E+00
0/14 8.7E-01 4.2E-01 1.1E+00
0/2 l.OE+00 9.5E-01 1.1E+00
0/14 3.0E-01 1.7E-01 1.1E+00
0/14 3.0E-01 1.7E-01 1.1E+00
0/4 5.8E-01 1.7E-01 1.1E+00
0/14 2.8E-01 4.0E-02 1.1E+00
0/14 3.0E-01 1.7E-01 1.1E+00
0/14 3.1E-01 1.7E-01 1.1E+00
Reach Data Summ_Soil rev 12-6-02.xls: Table Summ
1/13/2003
                                                                                                                                                                                                                     Page 2 of 4

-------
                                                                                                       Appendix A-3
                                                                                 Summary Statistics for Analytes in Site Surface Soil (mg/kg)
                                                                               BaseUneEcologicalRisk Assessment for the Ogden RailyardSite

Tvoe
1 JFC



















































8
>




Carbazole
Dibenzofuran
Dibutylphthalate
Diethylphthalate
Dimethylphthalate
Hexachlorobenzene
Hexachlorobutadiene
Hexachlorocyclopentadiene
Hexachloroethane
Isophorone
Nitrobenzene
N-Nitrosodiphenylamine
n-Nitrosodipropylamine
Pentachlorophenol (PCP)
Phenol
1, 1, 1,2-Tetrachloroethane
1,1,1-Trichloroethane
1, 1,2,2-Tetrachloroethane
1, 1,2-Trichloroethane
1,1-Dichloroethane
1, 1-Dichloroethene
1, 1-Dichloropropene
1,2,3-Trichlorobenzene
1,2,3-Trichloropropane
1 , 2,4 -Trimethylbenz ene
l,2-Dibromo-3-chloropropane (DBCP)
1,2-Dichloroethane
1,2-Dichloroethene
1,2-Dichloropropane
1 , 3, 5 -Trimethylbenz ene
1,3-Dichloropropane
1,4-Dioxane
2,2-Dichloropropane
2-Chloro-l,3-butadiene (Chloroprene)
2-Chloroethyl vinyl ether
2-Chlorotoluene
2-Hexanone
3-Chloropropene (Allyl Chloride)
4-Chlorotoluene
Acetone
Acetonitrile
Acrolein
Acrylonitrile
Benzene
Bromobenzene
Bromodichloromethane
Bromoform
Bromomethane (Methyl bromide)
Carbon Disulfide
Carbon Tetrachloride
Chlorobenzene
Chlorodibromomethane
Chloroethane (Ethyl chloride)
Chloroform
21st Street Pond

DF Avg Min Max
2/11 2.5E-01 3.9E-02 9.5E-01
0/10 3.3E-01 1.7E-01 9.5E-01
0/11 3.2E-01 1.7E-01 9.5E-01
0/11 3.2E-01 1.7E-01 9.5E-01
0/10 3.3E-01 1.7E-01 9.5E-01
0/11 3.2E-01 1.7E-01 9.5E-01
0/12 2.9E-01 5.2E-04 9.5E-01
0/10 3.3E-01 1.7E-01 9.5E-01
0/11 3.2E-01 1.7E-01 9.5E-01
0/10 3.3E-01 1.7E-01 9.5E-01
0/11 3.2E-01 1.7E-01 9.5E-01
0/10 3.3E-01 1.7E-01 9.5E-01
0/11 3.2E-01 1.7E-01 9.5E-01
0/10 1.2E+00 4.2E-01 4.5E+00
0/10 3.3E-01 1.7E-01 9.5E-01
0/3 3.5E-03 5.2E-04 5.0E-03
0/11 2.8E-03 5.2E-04 3.5E-03
0/11 2.8E-03 5.2E-04 3.5E-03
0/11 2.8E-03 5.2E-04 3.5E-03
1/11 3.1E-03 5.2E-04 6.4E-03
0/1 5.2E-04 5.2E-04 5.2E-04
0/1 5.2E-04 5.2E-04 5.2E-04
0/1 5.2E-04 5.2E-04 5.2E-04
0/11 3.2E-03 5.2E-04 5.0E-03
0/1 5.2E-04 5.2E-04 5.2E-04
0/11 3.2E-03 5.2E-04 5.0E-03
0/11 2.8E-03 5.2E-04 3.5E-03
0/10 5.6E-03 2.5E-03 7.0E-03
0/11 2.8E-03 5.2E-04 3.5E-03
0/1 5.2E-04 5.2E-04 5.2E-04
0/1 5.2E-04 5.2E-04 5.2E-04
0/2 1.5E-01 1.5E-01 1.5E-01
0/1 5.2E-04 5.2E-04 5.2E-04
0/2 5.0E-03 5.0E-03 5.0E-03
0/10 3.8E-03 3.0E-03 5.0E-03
0/1 5.2E-04 5.2E-04 5.2E-04
0/11 5.6E-03 l.OE-03 7.0E-03
0/2 5.0E-03 5.0E-03 5.0E-03
0/1 5.2E-04 5.2E-04 5.2E-04
1/11 7.2E-03 4.1E-03 2.0E-02
0/10 1.4E-02 5.0E-03 2.5E-02
0/9 2.1E-02 1.1E-02 5.0E-02
0/10 1.5E-02 1.1E-02 2.5E-02
1/11 2.6E-03 5.2E-04 3.5E-03
0/1 5.2E-04 5.2E-04 5.2E-04
0/11 2.8E-03 5.2E-04 3.5E-03
0/11 2.8E-03 5.2E-04 3.5E-03
0/11 5.6E-03 l.OE-03 7.0E-03
0/11 2.8E-03 5.2E-04 3.5E-03
0/11 2.8E-03 5.2E-04 3.5E-03
0/11 2.8E-03 5.2E-04 3.5E-03
0/11 2.8E-03 5.2E-04 3.5E-03
0/11 5.5E-03 5.2E-04 7.0E-03
0/11 2.8E-03 5.2E-04 3.5E-03
Weber River - Reach A

DF Avg Min Max
0/11 2.7E-01 1.8E-01 l.OE+00
0/11 2.7E-01 1.8E-01 l.OE+00
4/11 2.0E-01 4.0E-02 l.OE+00
0/11 2.7E-01 1.8E-01 l.OE+00
0/11 2.7E-01 1.8E-01 l.OE+00
0/11 2.7E-01 1.8E-01 l.OE+00
0/12 2.4E-01 8.2E-04 l.OE+00
0/11 2.7E-01 1.8E-01 l.OE+00
0/11 2.7E-01 1.8E-01 l.OE+00
0/11 2.7E-01 1.8E-01 l.OE+00
0/11 2.7E-01 1.8E-01 l.OE+00
0/11 2.7E-01 1.8E-01 l.OE+00
0/11 2.7E-01 1.8E-01 l.OE+00
0/11 9.5E-01 8.5E-01 l.OE+00
0/11 2.7E-01 1.8E-01 l.OE+00
0/1 8.2E-04 8.2E-04 8.2E-04
0/11 3.2E-03 8.2E-04 4.0E-03
0/11 3.2E-03 8.2E-04 4.0E-03
0/11 3.2E-03 8.2E-04 4.0E-03
0/11 3.2E-03 8.2E-04 4.0E-03
0/1 8.2E-04 8.2E-04 8.2E-04
0/1 8.2E-04 8.2E-04 8.2E-04
0/1 8.2E-04 8.2E-04 8.2E-04
0/11 3.2E-03 8.2E-04 4.0E-03
0/1 8.2E-04 8.2E-04 8.2E-04
0/11 3.2E-03 8.2E-04 4.0E-03
0/11 3.2E-03 8.2E-04 4.0E-03
0/10 7.0E-03 5.5E-03 8.5E-03
0/11 3.2E-03 8.2E-04 4.0E-03
0/1 8.2E-04 8.2E-04 8.2E-04
0/1 8.2E-04 8.2E-04 8.2E-04
na na na na
0/1 8.2E-04 8.2E-04 8.2E-04
na na na na
0/10 3.3E-03 2.5E-03 4.0E-03
0/1 8.2E-04 8.2E-04 8.2E-04
0/11 6.5E-03 1.6E-03 8.5E-03
na na na na
0/1 8.2E-04 8.2E-04 8.2E-04
0/11 8.9E-03 5.5E-03 2.8E-02
0/10 1.4E-02 1.2E-02 1.7E-02
0/10 1.4E-02 1.2E-02 1.7E-02
0/10 1.4E-02 1.2E-02 1.7E-02
0/11 3.2E-03 8.2E-04 4.0E-03
0/1 8.2E-04 8.2E-04 8.2E-04
0/11 3.2E-03 8.2E-04 4.0E-03
0/11 3.2E-03 8.2E-04 4.0E-03
0/11 6.5E-03 1.6E-03 8.5E-03
0/11 3.2E-03 8.2E-04 4.0E-03
0/11 3.2E-03 8.2E-04 4.0E-03
0/11 3.2E-03 8.2E-04 4.0E-03
0/11 3.2E-03 8.2E-04 4.0E-03
0/11 6.4E-03 8.2E-04 8.5E-03
0/11 3.2E-03 8.2E-04 4.0E-03
Weber River - Reach B

DF Avg Min Max
0/23 3.8E-01 6.0E-02 1.2E+00
0/23 3.8E-01 1.7E-01 1.2E+00
0/23 3.4E-01 4.2E-02 1.2E+00
0/23 3.8E-01 1.7E-01 1.2E+00
0/23 3.8E-01 1.7E-01 1.2E+00
0/23 3.8E-01 1.7E-01 1.2E+00
0/28 3.2E-01 6.6E-04 1.2E+00
0/23 3.8E-01 1.7E-01 1.2E+00
0/23 3.8E-01 1.7E-01 1.2E+00
0/23 3.8E-01 1.7E-01 1.2E+00
0/23 3.8E-01 1.7E-01 1.2E+00
0/23 3.8E-01 1.7E-01 1.2E+00
0/23 3.8E-01 1.7E-01 1.2E+00
0/23 8.6E-01 4.2E-01 2.7E+00
0/23 3.8E-01 1.7E-01 1.2E+00
0/13 3.4E-03 6.6E-04 5.0E-03
0/23 2.7E-03 6.6E-04 7.0E-03
1/23 2.7E-03 6.6E-04 7.0E-03
0/23 2.7E-03 6.6E-04 7.0E-03
0/23 2.7E-03 6.6E-04 7.0E-03
0/5 9.4E-04 6.6E-04 1.3E-03
0/5 9.4E-04 6.6E-04 1.3E-03
0/5 9.4E-04 6.6E-04 1.3E-03
0/23 3.6E-03 6.6E-04 7.0E-03
0/5 9.4E-04 6.6E-04 1.3E-03
0/23 3.6E-03 6.6E-04 7.0E-03
0/23 2.7E-03 6.6E-04 7.0E-03
0/18 5.3E-03 2.5E-03 1.4E-02
0/23 2.7E-03 6.6E-04 7.0E-03
0/5 9.4E-04 6.6E-04 1.3E-03
0/5 9.4E-04 6.6E-04 1.3E-03
0/8 1.5E-01 1.5E-01 1.5E-01
0/5 9.4E-04 6.6E-04 1.3E-03
0/8 5.0E-03 5.0E-03 5.0E-03
0/18 4.4E-03 2.5E-03 7.0E-03
0/5 9.4E-04 6.6E-04 1.3E-03
0/23 5.4E-03 1.3E-03 1.4E-02
0/8 5.0E-03 5.0E-03 5.0E-03
0/5 9.4E-04 6.6E-04 1.3E-03
0/23 6.5E-03 2.0E-03 1.4E-02
0/18 2.0E-02 l.OE-02 2.8E-02
0/17 3.1E-02 l.OE-02 5.0E-02
0/18 2.0E-02 l.OE-02 2.8E-02
0/23 2.7E-03 6.6E-04 7.0E-03
0/5 9.4E-04 6.6E-04 1.3E-03
0/23 2.7E-03 6.6E-04 7.0E-03
0/23 2.7E-03 6.6E-04 7.0E-03
0/23 5.4E-03 6.6E-04 1.4E-02
0/23 2.7E-03 6.6E-04 7.0E-03
0/23 2.7E-03 6.6E-04 7.0E-03
0/23 2.7E-03 6.6E-04 7.0E-03
0/23 2.7E-03 6.6E-04 7.0E-03
0/23 5.2E-03 6.6E-04 1.4E-02
1/23 2.8E-03 6.6E-04 7.0E-03
Weber River - Reach C

DF Avg Min Max
0/14 2.4E-01 1.7E-01 9.0E-01
0/14 2.4E-01 1.7E-01 9.0E-01
0/14 2.2E-01 l.OE-01 9.0E-01
0/14 2.4E-01 1.7E-01 9.0E-01
0/14 2.4E-01 1.7E-01 9.0E-01
0/14 2.4E-01 1.7E-01 9.0E-01
0/15 2.3E-01 8.7E-04 9.0E-01
0/14 2.4E-01 1.7E-01 9.0E-01
0/14 2.4E-01 1.7E-01 9.0E-01
0/14 2.4E-01 1.7E-01 9.0E-01
0/14 2.4E-01 1.7E-01 9.0E-01
0/14 2.4E-01 1.7E-01 9.0E-01
0/14 2.4E-01 1.7E-01 9.0E-01
0/14 8.5E-01 4.2E-01 1.1E+00
0/14 2.4E-01 1.7E-01 9.0E-01
0/4 4.0E-03 8.7E-04 5.0E-03
0/14 2.8E-03 8.7E-04 4.0E-03
0/14 2.8E-03 8.7E-04 4.0E-03
0/14 2.8E-03 8.7E-04 4.0E-03
0/14 2.8E-03 8.7E-04 4.0E-03
0/1 8.7E-04 8.7E-04 8.7E-04
0/1 8.7E-04 8.7E-04 8.7E-04
0/1 8.7E-04 8.7E-04 8.7E-04
0/14 3.3E-03 8.7E-04 5.0E-03
0/1 8.7E-04 8.7E-04 8.7E-04
0/14 3.3E-03 8.7E-04 5.0E-03
0/14 2.8E-03 8.7E-04 4.0E-03
0/13 5.4E-03 2.5E-03 8.0E-03
0/14 2.8E-03 8.7E-04 4.0E-03
0/1 8.7E-04 8.7E-04 8.7E-04
0/1 8.7E-04 8.7E-04 8.7E-04
0/3 1.5E-01 1.5E-01 1.5E-01
0/1 8.7E-04 8.7E-04 8.7E-04
0/3 5.0E-03 5.0E-03 5.0E-03
0/13 3.5E-03 2.5E-03 5.0E-03
0/1 8.7E-04 8.7E-04 8.7E-04
0/14 5.7E-03 1.7E-03 8.0E-03
0/3 5.0E-03 5.0E-03 5.0E-03
0/1 8.7E-04 8.7E-04 8.7E-04
0/14 6.1E-03 5.0E-03 8.0E-03
0/13 1.5E-02 9.5E-03 2.5E-02
0/8 2.6E-02 9.5E-03 5.0E-02
0/13 1.5E-02 9.5E-03 2.5E-02
0/14 2.8E-03 8.7E-04 4.0E-03
0/1 8.7E-04 8.7E-04 8.7E-04
0/14 2.8E-03 8.7E-04 4.0E-03
0/14 2.8E-03 8.7E-04 4.0E-03
0/14 5.7E-03 1.7E-03 8.0E-03
0/14 2.8E-03 8.7E-04 4.0E-03
0/14 2.8E-03 8.7E-04 4.0E-03
0/14 2.8E-03 8.7E-04 4.0E-03
0/14 2.8E-03 8.7E-04 4.0E-03
0/14 5.6E-03 8.7E-04 8.0E-03
0/14 2.8E-03 8.7E-04 4.0E-03
Weber River - Reach D

DF Avg Min Max
0/14 3.0E-01 1.7E-01 1.1E+00
1/14 2.9E-01 4.5E-02 1.1E+00
0/14 2.0E-01 2.5E-02 1.1E+00
0/14 3.0E-01 1.7E-01 1.1E+00
0/14 3.0E-01 1.7E-01 1.1E+00
0/14 3.0E-01 1.7E-01 1.1E+00
0/16 2.7E-01 6.9E-04 1.1E+00
0/14 3.0E-01 1.7E-01 1.1E+00
0/14 3.0E-01 1.7E-01 1.1E+00
0/14 3.0E-01 1.7E-01 1.1E+00
0/14 3.0E-01 1.7E-01 1.1E+00
0/14 3.0E-01 1.7E-01 1.1E+00
0/14 3.0E-01 1.7E-01 1.1E+00
0/14 8.7E-01 4.2E-01 1.1E+00
0/14 3.0E-01 1.7E-01 1.1E+00
0/4 2.9E-03 6.9E-04 5.0E-03
0/11 2.6E-03 6.9E-04 4.0E-03
0/11 2.6E-03 6.9E-04 4.0E-03
0/11 2.6E-03 6.9E-04 4.0E-03
0/11 2.6E-03 6.9E-04 4.0E-03
0/2 7.0E-04 6.9E-04 7.2E-04
0/2 7.0E-04 6.9E-04 7.2E-04
0/2 7.0E-04 6.9E-04 7.2E-04
0/11 3.0E-03 6.9E-04 5.0E-03
0/2 7.0E-04 6.9E-04 7.2E-04
0/11 3.0E-03 6.9E-04 5.0E-03
0/11 2.6E-03 6.9E-04 4.0E-03
0/9 5.4E-03 2.5E-03 8.5E-03
0/11 2.6E-03 6.9E-04 4.0E-03
0/2 7.0E-04 6.9E-04 7.2E-04
0/2 7.0E-04 6.9E-04 7.2E-04
0/2 1.5E-01 1.5E-01 1.5E-01
0/2 7.0E-04 6.9E-04 7.2E-04
0/2 5.0E-03 5.0E-03 5.0E-03
0/9 3.6E-03 2.5E-03 5.0E-03
0/2 7.0E-04 6.9E-04 7.2E-04
0/11 5.2E-03 1.4E-03 8.5E-03
0/2 5.0E-03 5.0E-03 5.0E-03
0/2 7.0E-04 6.9E-04 7.2E-04
0/11 6.0E-03 5.0E-03 8.5E-03
0/9 1.5E-02 l.OE-02 2.5E-02
0/2 5.0E-02 5.0E-02 5.0E-02
0/9 1.5E-02 l.OE-02 2.5E-02
0/11 2.6E-03 6.9E-04 4.0E-03
0/2 7.0E-04 6.9E-04 7.2E-04
0/11 2.6E-03 6.9E-04 4.0E-03
0/11 2.6E-03 6.9E-04 4.0E-03
0/11 5.2E-03 1.4E-03 8.5E-03
0/11 2.6E-03 6.9E-04 4.0E-03
0/11 2.6E-03 6.9E-04 4.0E-03
0/11 2.6E-03 6.9E-04 4.0E-03
0/11 2.6E-03 6.9E-04 4.0E-03
0/11 5.0E-03 6.9E-04 8.5E-03
0/11 2.6E-03 6.9E-04 4.0E-03
Reach Data Summ_Soil rev 12-6-02.xls: Table Summ
1/13/2003
                                                                                                                                                                                                                     PageS of 4

-------
                                                                                                       Appendix A-3
                                                                                 Summary Statistics for Analytes in Site Surface Soil (mg/kg)
                                                                               BaseUneEcologicalRisk Assessment for the Ogden RailyardSite
Type



































Analyte
Chloromethane (Methyl chloride)
cis-l,2-Dichloroethene
cis-l,3-Dichloropropene
Dibromome thane
Dichlorodifluoromethane
Dichloromethane
Ethyl Methacrylate
Ethylbenzene
Ethylene dibromide (EDB)
Hexane
lodomethane
Isobutyl Alcohol
Isopropylbenzene
Methacrylonitrile
Methyl ethyl ketone (MEK)
Methyl isobutyl ketone (MffiK)
Methyl Methaciylate
Methyl-t-butyl ether (MTBE)
n-Butylbenzene
n-Propylbenzene
o-Xylene
sec-Butylbenzene
Styrene
tert-Butylbenzene
Tetrachloroethene
Toluene
trans- 1,2-Dichloroethene
trans- 1,3-Dichloropropene
trans- l,4-Dichloro-2-Butene
Trichloroethene
Trichlorofluorome thane
Vinyl Acetate
Vinyl Chloride
Xylenes (Total)
Xylenes-p,m
21st Street Pond
DF Avg Min Max
0/11 5.5E-03 5.2E-04 7.0E-03
0/8 3.1E-03 2.5E-03 3.5E-03
0/12 2.6E-03 5.2E-04 3.5E-03
0/3 3.5E-03 5.2E-04 5.0E-03
0/3 3.5E-03 5.2E-04 5.0E-03
2/11 2.5E-03 5.2E-04 5.0E-03
0/2 2.5E-02 2.5E-02 2.5E-02
1/11 2.8E-03 5.2E-04 3.5E-03
0/11 3.2E-03 5.2E-04 5.0E-03
0/8 3.1E-03 2.5E-03 3.5E-03
0/2 5.0E-03 5.0E-03 5.0E-03
0/2 5.0E-02 5.0E-02 5.0E-02
0/2 5.2E-04 5.2E-04 5.2E-04
0/10 6.1E-03 5.0E-03 7.0E-03
0/4 4.3E-03 2.1E-03 5.0E-03
0/11 5.6E-03 l.OE-03 7.0E-03
0/2 5.0E-03 5.0E-03 5.0E-03
0/1 5.2E-04 5.2E-04 5.2E-04
0/1 5.2E-04 5.2E-04 5.2E-04
0/1 5.2E-04 5.2E-04 5.2E-04
0/1 5.2E-04 5.2E-04 5.2E-04
0/1 5.2E-04 5.2E-04 5.2E-04
0/11 2.8E-03 5.2E-04 3.5E-03
0/1 5.2E-04 5.2E-04 5.2E-04
0/11 2.8E-03 5.2E-04 3.5E-03
1/11 2.7E-03 5.2E-04 3.5E-03
0/9 2.8E-03 5.2E-04 3.5E-03
0/11 2.8E-03 5.2E-04 3.5E-03
0/2 5.0E-03 5.0E-03 5.0E-03
0/11 2.8E-03 5.2E-04 3.5E-03
1/11 4.9E-03 5.2E-04 7.0E-03
0/10 3.8E-03 3.0E-03 5.0E-03
0/11 5.5E-03 5.2E-04 7.0E-03
1/10 9.1E-03 2.5E-03 1.3E-02
0/1 5.2E-04 5.2E-04 5.2E-04
Weber River - Reach A
DF Avg Min Max
0/11 6.4E-03 8.2E-04 8.5E-03
0/10 3.2E-03 2.5E-03 4.0E-03
0/12 3.0E-03 8.2E-04 4.0E-03
0/1 8.2E-04 8.2E-04 8.2E-04
0/1 8.2E-04 8.2E-04 8.2E-04
0/11 2.5E-03 8.2E-04 6.0E-03
na na na na
0/11 3.2E-03 8.2E-04 4.0E-03
0/11 3.2E-03 8.2E-04 4.0E-03
0/10 3.3E-03 2.5E-03 4.0E-03
na na na na
na na na na
0/2 8.2E-04 8.2E-04 8.2E-04
0/10 7.0E-03 5.5E-03 8.5E-03
0/1 3.3E-03 3.3E-03 3.3E-03
0/11 6.5E-03 1.6E-03 8.5E-03
na na na na
0/1 8.2E-04 8.2E-04 8.2E-04
0/1 8.2E-04 8.2E-04 8.2E-04
0/1 8.2E-04 8.2E-04 8.2E-04
0/1 8.2E-04 8.2E-04 8.2E-04
0/1 8.2E-04 8.2E-04 8.2E-04
0/11 3.2E-03 8.2E-04 4.0E-03
0/1 8.2E-04 8.2E-04 8.2E-04
0/11 3.2E-03 8.2E-04 4.0E-03
0/11 3.2E-03 8.2E-04 4.0E-03
0/11 3.2E-03 8.2E-04 4.0E-03
0/11 3.2E-03 8.2E-04 4.0E-03
na na na na
0/11 3.2E-03 8.2E-04 4.0E-03
0/11 6.4E-03 8.2E-04 8.5E-03
0/10 3.5E-03 3.0E-03 4.0E-03
0/11 6.4E-03 8.2E-04 8.5E-03
0/10 1.1E-02 8.5E-03 1.3E-02
0/1 8.2E-04 8.2E-04 8.2E-04
Weber River - Reach B
DF Avg Min Max
0/23 5.2E-03 6.6E-04 1.4E-02
0/10 4.3E-03 3.0E-03 7.0E-03
0/28 2.4E-03 6.6E-04 7.0E-03
0/13 3.4E-03 6.6E-04 5.0E-03
1/13 3.5E-03 6.6E-04 5.0E-03
0/23 1.7E-03 6.6E-04 4.5E-03
0/8 2.5E-02 2.5E-02 2.5E-02
0/23 2.7E-03 6.6E-04 7.0E-03
0/23 3.6E-03 6.6E-04 7.0E-03
0/10 3.9E-03 2.5E-03 7.0E-03
0/8 5.0E-03 5.0E-03 5.0E-03
0/8 5.0E-02 5.0E-02 5.0E-02
0/10 9.4E-04 6.6E-04 1.3E-03
0/18 6.4E-03 5.0E-03 1.4E-02
0/13 4.4E-03 6.6E-04 5.2E-03
0/23 5.4E-03 1.3E-03 1.4E-02
0/8 5.0E-03 5.0E-03 5.0E-03
0/5 9.4E-04 6.6E-04 1.3E-03
0/5 9.4E-04 6.6E-04 1.3E-03
0/5 9.4E-04 6.6E-04 1.3E-03
0/5 9.4E-04 6.6E-04 1.3E-03
0/5 9.4E-04 6.6E-04 1.3E-03
0/23 2.7E-03 6.6E-04 7.0E-03
0/5 9.4E-04 6.6E-04 1.3E-03
0/23 2.7E-03 6.6E-04 7.0E-03
0/23 2.7E-03 6.6E-04 7.0E-03
0/15 3.1E-03 6.6E-04 7.0E-03
0/23 2.7E-03 6.6E-04 7.0E-03
0/8 5.0E-03 5.0E-03 5.0E-03
0/23 2.7E-03 6.6E-04 7.0E-03
0/23 4.4E-03 6.6E-04 1.4E-02
0/18 4.4E-03 2.5E-03 7.0E-03
0/23 5.2E-03 6.6E-04 1.4E-02
0/18 7.5E-03 2.5E-03 2.1E-02
0/5 9.4E-04 6.6E-04 1.3E-03
Weber River - Reach C
DF Avg Min Max
0/14 5.6E-03 8.7E-04 8.0E-03
0/10 3.2E-03 2.5E-03 4.0E-03
0/15 2.7E-03 8.7E-04 4.0E-03
0/4 4.0E-03 8.7E-04 5.0E-03
0/4 4.0E-03 8.7E-04 5.0E-03
0/14 2.9E-03 8.7E-04 7.0E-03
0/3 2.5E-02 2.5E-02 2.5E-02
0/14 2.8E-03 8.7E-04 4.0E-03
0/14 3.3E-03 8.7E-04 5.0E-03
0/10 3.1E-03 2.5E-03 4.0E-03
0/3 5.0E-03 5.0E-03 5.0E-03
0/3 5.0E-02 5.0E-02 5.0E-02
0/2 8.7E-04 8.7E-04 8.7E-04
0/13 6.0E-03 5.0E-03 8.0E-03
0/5 5.1E-03 3.5E-03 7.0E-03
0/14 5.7E-03 1.7E-03 8.0E-03
0/3 5.0E-03 5.0E-03 5.0E-03
0/1 8.7E-04 8.7E-04 8.7E-04
0/1 8.7E-04 8.7E-04 8.7E-04
0/1 8.7E-04 8.7E-04 8.7E-04
0/1 8.7E-04 8.7E-04 8.7E-04
0/1 8.7E-04 8.7E-04 8.7E-04
0/14 2.8E-03 8.7E-04 4.0E-03
0/1 8.7E-04 8.7E-04 8.7E-04
0/14 2.8E-03 8.7E-04 4.0E-03
0/14 2.8E-03 8.7E-04 4.0E-03
0/11 2.9E-03 8.7E-04 4.0E-03
0/14 2.8E-03 8.7E-04 4.0E-03
0/3 5.0E-03 5.0E-03 5.0E-03
0/14 2.8E-03 8.7E-04 4.0E-03
0/14 5.1E-03 8.7E-04 8.0E-03
0/13 3.5E-03 2.5E-03 5.0E-03
0/14 5.6E-03 8.7E-04 8.0E-03
0/13 7.7E-03 2.5E-03 1.2E-02
0/1 8.7E-04 8.7E-04 8.7E-04
Weber River - Reach D
DF Avg Min Max
0/11 5.0E-03 6.9E-04 8.5E-03
0/7 3.1E-03 2.5E-03 4.0E-03
0/13 2.3E-03 6.9E-04 4.0E-03
0/4 2.9E-03 6.9E-04 5.0E-03
0/4 2.9E-03 6.9E-04 5.0E-03
0/11 3.1E-03 6.9E-04 7.8E-03
0/2 2.5E-02 2.5E-02 2.5E-02
0/11 2.6E-03 6.9E-04 4.0E-03
0/11 3.0E-03 6.9E-04 5.0E-03
0/7 3.1E-03 2.5E-03 4.0E-03
0/2 5.0E-03 5.0E-03 5.0E-03
0/2 5.0E-02 5.0E-02 5.0E-02
0/4 7.0E-04 6.9E-04 7.2E-04
0/9 6.0E-03 5.0E-03 8.5E-03
0/4 3.9E-03 2.7E-03 5.0E-03
0/11 5.2E-03 1.4E-03 8.5E-03
0/2 5.0E-03 5.0E-03 5.0E-03
0/2 7.0E-04 6.9E-04 7.2E-04
0/2 7.0E-04 6.9E-04 7.2E-04
0/2 7.0E-04 6.9E-04 7.2E-04
0/2 7.0E-04 6.9E-04 7.2E-04
0/2 7.0E-04 6.9E-04 7.2E-04
0/11 2.6E-03 6.9E-04 4.0E-03
0/2 7.0E-04 6.9E-04 7.2E-04
2/11 2.8E-03 6.9E-04 6.8E-03
0/11 2.6E-03 6.9E-04 4.0E-03
0/9 2.6E-03 6.9E-04 4.0E-03
0/11 2.6E-03 6.9E-04 4.0E-03
0/2 5.0E-03 5.0E-03 5.0E-03
0/11 2.6E-03 6.9E-04 4.0E-03
0/11 4.6E-03 6.9E-04 8.5E-03
0/9 3.6E-03 2.5E-03 5.0E-03
0/11 5.0E-03 6.9E-04 8.5E-03
0/9 8.0E-03 2.5E-03 1.3E-02
0/2 7.0E-04 6.9E-04 7.2E-04
Reach Data Summ_Soil rev 12-6-02.xls: Table Summ
1/13/2003
                                                                                                                                                                                                                     Page 4 of 4

-------
                                                                   Appendix A-4
                                          Summary Statistics for Analytes in Site Sediment Porewater (ug/L)


                                           Baseline Ecological Risk Assessment for the Ogden Railyard Site

Type










ffi
PH




























§





















Analyte

2-Chloronaphthalene
2-Methylnaphthalene
Acenaphthene
Acenaphthylene
Anthracene
Benzo[a]anthracene
Benzo[a]pyrene
B enzo [b] fluor anthene
Benzo[g,h,i]perylene
B enzo [k] fluor anthene

Chrysene
Dibenz[a,h]anthracene
Dibenzofirran
Fluoranthene
Fluorene
Indeno[l,2,3-c,d]pyrene
Naphthalene
Phenanthrene
Pyrene
2,4,5-Trichlorophenol
2,4,6-Trichlorophenol
2,4-Dichlorophenol
2,4- Dimethylphenol
2,4-Dinitrophenol
2,4-Dinitrotoluene
2,6-Dinitrotoluene
2-Chlorophenol
2-Methylphenol (o-Cresol)
2-Nitroaniline
2-Nitrophenol
3,3'-Dichlorobenzidine
3-Nitroaniline
4,6-Dinitro-o-cresol
4-Chloro-3-Methylphenol
4-Chloroaniline
4-Chlorophenyl-phenylether
4-Methylphenol (p-Cresol)
4-Nitroaniline
4-Nitrophenol
bis(2-Chloroethoxy)methane
bis(2-Chloroethyl)ether
bis(2-Chloroisopropyl)ether
bis(2-Ethylhexyl)phthalate
bis(n-octyl)phthalate
Butylbenzylphthalate
Carbazole
Dibutylphthalate
Diethylphthalate
Dimethylphthalate
Hexachlorobenzene
Hexachlorobutadiene
Hexachlorocyclopentadiene
Hexachloroethane
Isophorone
Nitrobenzene
N-Nitrosodiphenylamine
n-Nitrosodipropylamine
Pentachlorophenol (PCP)
Phenol
21st Street Pond

DF Avg Min Max
0/5 5.0E+00 5.0E+00 5.0E+00
2/10 2.3E+00 1.5E-01 5.0E+00
6/10 8.6E+00 1.5E-01 3.4E+01
1/10 2.7E+00 1.5E-01 5.0E+00
4/10 2.8E+00 8.0E-02 5.0E+00
1/10 2.6E+00 5.0E-02 5.0E+00
0/10 2.6E+00 1.5E-01 5.0E+00
1/10 2.6E+00 9.0E-02 5.0E+00
0/10 2.6E+00 1.5E-01 5.0E+00
0/10 2.6E+00 1.5E-01 5.0E+00

0/10 2.6E+00 1.5E-01 5.0E+00
0/10 2.6E+00 1.5E-01 5.0E+00
0/5 5.0E+00 5.0E+00 5.0E+00
4/10 2.5E+00 l.OE-01 5.0E+00
4/10 4.6E+00 1.5E-01 1.5E+01
0/10 2.6E+00 1.5E-01 5.0E+00
4/10 4.5E+00 1.5E-01 1.2E+01
1/10 2.6E+00 1.5E-01 5.0E+00
5/10 2.7E+00 8.0E-02 5.0E+00
0/5 1.3E+01 1.3E+01 1.3E+01
0/5 5.0E+00 5.0E+00 5.0E+00
0/5 5.0E+00 5.0E+00 5.0E+00
0/5 5.0E+00 5.0E+00 5.0E+00
0/5 1.3E+01 1.3E+01 1.3E+01
0/5 5.0E+00 5.0E+00 5.0E+00
0/5 5.0E+00 5.0E+00 5.0E+00
0/5 5.0E+00 5.0E+00 5.0E+00
0/5 5.0E+00 5.0E+00 5.0E+00
0/5 1.3E+01 1.3E+01 1.3E+01
0/5 5.0E+00 5.0E+00 5.0E+00
0/5 5.0E+00 5.0E+00 5.0E+00
0/5 1.3E+01 1.3E+01 1.3E+01
0/5 1.3E+01 1.3E+01 1.3E+01
0/5 5.0E+00 5.0E+00 5.0E+00
0/5 5.0E+00 5.0E+00 5.0E+00
0/5 5.0E+00 5.0E+00 5.0E+00
1/5 1.4E+01 5.0E+00 5.1E+01
0/5 1.3E+01 1.3E+01 1.3E+01
0/5 1.3E+01 1.3E+01 1.3E+01
0/5 5.0E+00 5.0E+00 5.0E+00
0/5 5.0E+00 5.0E+00 5.0E+00
0/5 5.0E+00 5.0E+00 5.0E+00
5/5 8.0E+00 l.OE+00 2.1E+01
0/5 5.0E+00 5.0E+00 5.0E+00
0/5 5.0E+00 5.0E+00 5.0E+00
0/5 5.0E+00 5.0E+00 5.0E+00
0/5 5.0E+00 5.0E+00 5.0E+00
0/5 5.0E+00 5.0E+00 5.0E+00
0/5 5.0E+00 5.0E+00 5.0E+00
0/5 5.0E+00 5.0E+00 5.0E+00
0/5 5.0E+00 5.0E+00 5.0E+00
0/5 5.0E+00 5.0E+00 5.0E+00
0/5 5.0E+00 5.0E+00 5.0E+00
0/5 5.0E+00 5.0E+00 5.0E+00
0/5 5.0E+00 5.0E+00 5.0E+00
0/5 5.0E+00 5.0E+00 5.0E+00
0/5 5.0E+00 5.0E+00 5.0E+00
0/5 1.3E+01 1.3E+01 1.3E+01
0/5 5.0E+00 5.0E+00 5.0E+00
Ogden River - Reach B

DF Avg Min Max
0/2 5.0E+00 5.0E+00 5.0E+00
0/4 2.6E+00 1.5E-01 5.0E+00
1/4 2.6E+00 8.0E-02 5.0E+00
0/4 2.6E+00 1.5E-01 5.0E+00
0/4 2.6E+00 1.5E-01 5.0E+00
0/4 2.6E+00 1.5E-01 5.0E+00
0/4 2.6E+00 1.5E-01 5.0E+00
0/4 2.6E+00 1.5E-01 5.0E+00
0/4 2.6E+00 1.5E-01 5.0E+00
0/4 2.6E+00 1.5E-01 5.0E+00

0/4 2.6E+00 1.5E-01 5.0E+00
0/4 2.6E+00 1.5E-01 5.0E+00
0/2 5.0E+00 5.0E+00 5.0E+00
0/4 2.6E+00 1.5E-01 5.0E+00
1/4 2.6E+00 8.0E-02 5.0E+00
0/4 2.6E+00 1.5E-01 5.0E+00
1/4 2.6E+00 1.5E-01 5.0E+00
0/4 2.6E+00 1.5E-01 5.0E+00
0/4 2.6E+00 1.5E-01 5.0E+00
0/2 1.3E+01 1.3E+01 1.3E+01
0/2 5.0E+00 5.0E+00 5.0E+00
0/2 5.0E+00 5.0E+00 5.0E+00
0/2 5.0E+00 5.0E+00 5.0E+00
0/2 1.3E+01 1.3E+01 1.3E+01
0/2 5.0E+00 5.0E+00 5.0E+00
0/2 5.0E+00 5.0E+00 5.0E+00
0/2 5.0E+00 5.0E+00 5.0E+00
0/2 5.0E+00 5.0E+00 5.0E+00
0/2 1.3E+01 1.3E+01 1.3E+01
0/2 5.0E+00 5.0E+00 5.0E+00
0/2 5.0E+00 5.0E+00 5.0E+00
0/2 1.3E+01 1.3E+01 1.3E+01
0/2 1.3E+01 1.3E+01 1.3E+01
0/2 5.0E+00 5.0E+00 5.0E+00
0/2 5.0E+00 5.0E+00 5.0E+00
0/2 5.0E+00 5.0E+00 5.0E+00
0/2 5.0E+00 5.0E+00 5.0E+00
0/2 1.3E+01 1.3E+01 1.3E+01
0/2 1.3E+01 1.3E+01 1.3E+01
0/2 5.0E+00 5.0E+00 5.0E+00
0/2 5.0E+00 5.0E+00 5.0E+00
0/2 5.0E+00 5.0E+00 5.0E+00
2/2 1.5E+00 l.OE+00 2.0E+00
0/2 5.0E+00 5.0E+00 5.0E+00
0/2 5.0E+00 5.0E+00 5.0E+00
0/2 5.0E+00 5.0E+00 5.0E+00
0/2 5.0E+00 5.0E+00 5.0E+00
0/2 5.0E+00 5.0E+00 5.0E+00
0/2 5.0E+00 5.0E+00 5.0E+00
0/2 5.0E+00 5.0E+00 5.0E+00
0/2 5.0E+00 5.0E+00 5.0E+00
0/2 5.0E+00 5.0E+00 5.0E+00
0/2 5.0E+00 5.0E+00 5.0E+00
0/2 5.0E+00 5.0E+00 5.0E+00
0/2 5.0E+00 5.0E+00 5.0E+00
0/2 5.0E+00 5.0E+00 5.0E+00
0/2 5.0E+00 5.0E+00 5.0E+00
0/2 1.3E+01 1.3E+01 1.3E+01
0/2 5.0E+00 5.0E+00 5.0E+00
Ogden River - Reach C

DF Avg Min Max
0/1 5.0E+00 5.0E+00 5.0E+00
0/2 2.6E+00 1.5E-01 5.0E+00
0/2 2.6E+00 1.5E-01 5.0E+00
0/2 2.6E+00 1.5E-01 5.0E+00
0/2 2.6E+00 1.5E-01 5.0E+00
0/2 2.6E+00 1.5E-01 5.0E+00
0/2 2.6E+00 1.5E-01 5.0E+00
0/2 2.6E+00 1.5E-01 5.0E+00
0/2 2.6E+00 1.5E-01 5.0E+00
0/2 2.6E+00 1.5E-01 5.0E+00

0/2 2.6E+00 1.5E-01 5.0E+00
0/2 2.6E+00 1.5E-01 5.0E+00
0/1 5.0E+00 5.0E+00 5.0E+00
0/2 2.6E+00 1.5E-01 5.0E+00
0/2 2.6E+00 1.5E-01 5.0E+00
0/2 2.6E+00 1.5E-01 5.0E+00
0/2 2.6E+00 1.5E-01 5.0E+00
0/2 2.6E+00 1.5E-01 5.0E+00
0/2 2.6E+00 1.5E-01 5.0E+00
0/1 1.3E+01 1.3E+01 1.3E+01
0/1 5.0E+00 5.0E+00 5.0E+00
0/1 5.0E+00 5.0E+00 5.0E+00
0/1 5.0E+00 5.0E+00 5.0E+00
0/1 1.3E+01 1.3E+01 1.3E+01
0/1 5.0E+00 5.0E+00 5.0E+00
0/1 5.0E+00 5.0E+00 5.0E+00
0/1 5.0E+00 5.0E+00 5.0E+00
0/1 5.0E+00 5.0E+00 5.0E+00
0/1 1.3E+01 1.3E+01 1.3E+01
0/1 5.0E+00 5.0E+00 5.0E+00
0/1 5.0E+00 5.0E+00 5.0E+00
0/1 1.3E+01 1.3E+01 1.3E+01
0/1 1.3E+01 1.3E+01 1.3E+01
0/1 5.0E+00 5.0E+00 5.0E+00
0/1 5.0E+00 5.0E+00 5.0E+00
0/1 5.0E+00 5.0E+00 5.0E+00
0/1 5.0E+00 5.0E+00 5.0E+00
0/1 1.3E+01 1.3E+01 1.3E+01
0/1 1.3E+01 1.3E+01 1.3E+01
0/1 5.0E+00 5.0E+00 5.0E+00
0/1 5.0E+00 5.0E+00 5.0E+00
0/1 5.0E+00 5.0E+00 5.0E+00
1/1 l.OE+00 l.OE+00 l.OE+00
0/1 5.0E+00 5.0E+00 5.0E+00
0/1 5.0E+00 5.0E+00 5.0E+00
0/1 5.0E+00 5.0E+00 5.0E+00
0/1 5.0E+00 5.0E+00 5.0E+00
0/1 5.0E+00 5.0E+00 5.0E+00
0/1 5.0E+00 5.0E+00 5.0E+00
0/1 5.0E+00 5.0E+00 5.0E+00
0/1 5.0E+00 5.0E+00 5.0E+00
0/1 5.0E+00 5.0E+00 5.0E+00
0/1 5.0E+00 5.0E+00 5.0E+00
0/1 5.0E+00 5.0E+00 5.0E+00
0/1 5.0E+00 5.0E+00 5.0E+00
0/1 5.0E+00 5.0E+00 5.0E+00
0/1 5.0E+00 5.0E+00 5.0E+00
0/1 1.3E+01 1.3E+01 1.3E+01
0/1 5.0E+00 5.0E+00 5.0E+00
Reach Data Summ_PW.xls: Table Summ
1/13/2003

-------
This page intentionally left blank to facilitate double-sided printing.

-------
                Appendix A-5
                Summary Statistics for Analytes in Fish Tissue

                Baseline Ecological Risk Assessment for the Ogden RailyardSite

Type









PAHs












PCBs (as
Aroclors)








PCBs (as
congeners)















Pesticides











nay e
2-Chloronaphthalene
2-Methylnaphthalene
Acenaphthene
Acenaphthylene
Anthracene
Benzo [a]anthracene
Benzo[a]pyrene
Benzo [b]fluoranthene
Benzo [g,h,i]perylene
Benzo [k]fluoranthene
Chrysene
Dibenz [a,h]anthracene
Dibenzofbran
Fluoranthene
Fluorene
Indeno[l,2,3-c,d]pyrene
Naphthalene
Phenanthrene
Pyrene
Aroclor-1016
Aroclor-1221
Aroclor-1232
Aroclor-1242
Aroclor-1248
Aroclor-1254
Aroclor-1260
Aroclor-1268
PCB-105
PCB-114
PCB-118
PCB-123
PCB-126
PCB-156
PCB-157
PCB-167
PCB-169
PCB-189
PCB-77
PCB-81
4,4'-DDD
4,4'-DDE
4,4'-DDT
Aldrin
alpha-BHC
alpha-Chlordane
beta-BHC
delta-BHC
Dieldrin
Endosulfan I
Endosulfan II
Endosulfan Sulfate
Endrin
Endrin Aldehyde
Endrin ketone
gamma-BHC
gamm a- Chlordane
Heptachlor
Heptachlor Epoxide
Methoxychlor
Toxaphene


mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
pg/gww
pg/gww
pg/gww
pg/gww
pg/gww
pg/gww
pg/gww
pg/gww
pg/gww
pg/gww
pg/gww
pg/gww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
Weber River - Reach C
DF Avg Min Max
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
1/1 2.5E+03 2.5E+03 2.5E+03
1/1 1.6E+02 1.6E+02 1.6E+02
1/1 7.3E+03 7.3E+03 7.3E+03
0/1 1.5E+01 1.5E+01 1.5E+01
1/1 1.8E+01 1.8E+01 1.8E+01
1/1 9.7E+02 9.7E+02 9.7E+02
1/1 2.4E+02 2.4E+02 2.4E+02
1/1 5.0E+02 5.0E+02 5.0E+02
0/1 1.6E+01 1.6E+01 1.6E+01
1/1 1.1E+02 1.1E+02 1.1E+02
1/1 1.1E+02 1.1E+02 1.1E+02
0/1 9.5E-01 9.5E-01 9.5E-01
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
Weber River - Reach D
DF Avg Min Max
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
1/1 5.9E+02 5.9E+02 5.9E+02
1/1 3.8E+01 3.8E+01 3.8E+01
1/1 1.7E+03 1.7E+03 1.7E+03
0/1 8.1E+00 8.1E+00 8.1E+00
1/1 1.1E+01 1.1E+01 1.1E+01
1/1 5.0E+02 5.0E+02 5.0E+02
1/1 6.1E+01 6.1E+01 6.1E+01
1/1 1.4E+02 1.4E+02 1.4E+02
0/1 9.8E+00 9.8E+00 9.8E+00
1/1 4.6E+01 4.6E+01 4.6E+01
1/1 4.9E+01 4.9E+01 4.9E+01
0/1 9.8E-01 9.8E-01 9.8E-01
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
Buena Ventura Park Pond
DF Avg Min Max
na na na na
na na na na
0/1 1.3E-01 1.3E-01 1.3E-01
0/1 1.3E-01 1.3E-01 1.3E-01
0/1 1.3E-01 1.3E-01 1.3E-01
0/1 1.3E-01 1.3E-01 1.3E-01
0/1 1.3E-01 1.3E-01 1.3E-01
0/1 1.3E-01 1.3E-01 1.3E-01
0/1 1.3E-01 1.3E-01 1.3E-01
0/1 1.3E-01 1.3E-01 1.3E-01
0/1 1.3E-01 1.3E-01 1.3E-01
0/1 1.3E-01 1.3E-01 1.3E-01
na na na na
0/1 1.3E-01 1.3E-01 1.3E-01
0/1 1.3E-01 1.3E-01 1.3E-01
0/1 1.3E-01 1.3E-01 1.3E-01
0/1 1.3E-01 1.3E-01 1.3E-01
0/1 1.3E-01 1.3E-01 1.3E-01
0/1 1.3E-01 1.3E-01 1.3E-01
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
1/1 4.5E+02 4.5E+02 4.5E+02
1/1 3.5E+01 3.5E+01 3.5E+01
1/1 1.2E+03 1.2E+03 1.2E+03
0/1 4.8E+00 4.8E+00 4.8E+00
0/1 4.8E+00 4.8E+00 4.8E+00
1/1 1.4E+02 1.4E+02 1.4E+02
1/1 2.9E+01 2.9E+01 2.9E+01
1/1 7.3E+01 7.3E+01 7.3E+01
0/1 9.5E+00 9.5E+00 9.5E+00
0/1 9.5E+00 9.5E+00 9.5E+00
1/1 3.4E+01 3.4E+01 3.4E+01
0/1 9.5E-01 9.5E-01 9.5E-01
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
21st Street Pond
DF Avg Min Max
0/29 1 .OE+00 9.8E-01 1 .2E+00
0/29 1 .OE+00 9.8E-01 1 .2E+00
1/33 8.9E-01 1.3E-01 1.2E+00
0/33 9.0E-01 1.3E-01 1.2E+00
0/33 9.0E-01 1.3E-01 1.2E+00
0/33 9.0E-01 1.3E-01 1.2E+00
0/33 9.0E-01 1.3E-01 1.2E+00
0/33 9.0E-01 1.3E-01 1.2E+00
0/33 9.0E-01 1.3E-01 1.2E+00
0/33 9.0E-01 1.3E-01 1.2E+00
0/33 9.0E-01 1.3E-01 1.2E+00
0/33 9.0E-01 1.3E-01 1.2E+00
0/29 1 .OE+00 9.8E-01 1 .2E+00
0/33 9.0E-01 1.3E-01 1.2E+00
0/33 9.0E-01 1.3E-01 1.2E+00
0/33 9.0E-01 1.3E-01 1.2E+00
0/33 9.0E-01 1.3E-01 1.2E+00
0/33 9.0E-01 1.3E-01 1.2E+00
0/33 9.0E-01 1.3E-01 1.2E+00
0/29 2.0E-02 9.9E-03 3.2E-02
0/29 4.2E-02 2.4E-02 6.3E-02
0/29 2.0E-02 9.9E-03 3.2E-02
0/29 2.0E-02 9.9E-03 3.2E-02
0/29 2.0E-02 9.9E-03 3.2E-02
0/29 2.0E-02 9.9E-03 3.2E-02
28/29 2.8E-01 5.3E-03 1.9E+00
0/28 2.0E-02 6.8E-03 3.2E-02
2/2 4.7E+02 3.8E+02 5.7E+02
2/2 3.7E+01 3.0E+01 4.4E+01
2/2 1 .9E+03 1 .5E+03 2.3E+03
0/2 1.1E+01 1.1E+01 1.1E+01
2/2 1.9E+01 1.4E+01 2.3E+01
2/2 6.0E+02 4.8E+02 7.2E+02
2/2 6.9E+01 5.5E+01 8.4E+01
2/2 3.4E+02 2.5E+02 4.3E+02
0/2 9.7E+00 9.7E+00 9.7E+00
2/2 1.3E+02 9.5E+01 1.6E+02
2/2 3.0E+01 2.6E+01 3.4E+01
0/2 9.7E-01 9.7E-01 9.7E-01
18/29 5.0E-03 1.5E-03 1.6E-02
29/29 1 .3E-01 1 .9E-03 5.9E-01
1/29 2.1E-03 1.9E-03 2.7E-03
0/29 2.0E-03 1.9E-03 2.5E-03
0/29 2.0E-03 1.9E-03 2.5E-03
0/29 2.0E-03 1.9E-03 2.5E-03
0/29 2.0E-03 1.9E-03 2.5E-03
0/29 2.0E-03 1.9E-03 2.5E-03
0/29 2.0E-03 1.9E-03 2.5E-03
0/29 2.0E-03 1.9E-03 2.5E-03
0/29 2.0E-03 1.9E-03 2.5E-03
0/29 2.0E-03 1.9E-03 2.5E-03
0/29 2.0E-03 1.9E-03 2.5E-03
0/29 2.0E-03 1.9E-03 2.5E-03
0/29 2.0E-03 1.9E-03 2.5E-03
0/29 2.0E-03 1.9E-03 2.5E-03
2/29 2.8E-03 1 .9E-03 2.0E-02
0/29 2.0E-03 1.9E-03 2.5E-03
0/29 2.0E-03 1.9E-03 2.5E-03
0/29 2.0E-03 1.9E-03 2.5E-03
0/29 4.2E-02 2.4E-02 6.3E-02
Reach Data Summ_Fish.xls: Table Sum
1/17/2003
                                                                                                                                                                                                                           Page 1 of4

-------
                Appendix A-5
                Summary Statistics for Analytes in Fish Tissue

                Baseline Ecological Risk Assessment for the Ogden RailyardSite
Type






















SVOCs























Analyte
1,2,4-Trichlorobenzene
1 ,2-Dichlorobenzene
1,3-Dichlorobenzene
1 ,4-Dichlorobenzene
2,4,5-Trichlorophenol
2,4,6-Trichlorophenol
2,4-Dichlorophenol
2,4-Dimethylphenol
2,4-Dinitrophenol
2,4-Dinitrotoluene
2,6-Dinitrotoluene
2-Chlorophenol
2-Methylphenol (o-Cresol)
2-Nitroaniline
2-Nitrophenol
3,3'-Dichlorobenzidine
3-Nitroaniline
4,6-Dinitro-o-cresol
4-Bromophenyl-phenylether
4-Chloro-3-Methylphenol
4-Chloroaniline
4-Chlorophenyl-phenylether
4-Methylphenol (p-Cresol)
4-Nitroaniline
4-Nitrophenol
Benzyl alcohol
bis(2-Chloroethoxy)methane
bis(2-Chloroethyl)ether
bis(2-Chloroisopropyl)ether
bis(2-Ethylhexyl)phthalate
bis(n-octyl)phthalate
Butylbenzylphthalate
Carbazole
Dibutylphthalate
Di ethyl phthal ate
Dimethylphthalate
Hexachlorobenzene
Hexachlorobutadiene
Hexachlorocyclopentadiene
Hexachloroethane
Isophorone
Nitrobenzene
N-Nitrosodiphenylamine
n-Nitrosodipropylamine
Pentachlorophenol (PCP)
Phenol
Units
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
Weber River - Reach C
DF Avg Min Max
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
Weber River - Reach D
DF Avg Min Max
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
Buena Ventura Park Pond
DF Avg Min Max
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
21st Street Pond
DF Avg Min Max
0/29 1 .OE+00 9.8E-01 1 .2E+00
0/29 1 .OE+00 9.8E-01 1 .2E+00
0/29 1 .OE+00 9.8E-01 1 .2E+00
0/29 1 .OE+00 9.8E-01 1 .2E+00
0/29 1 .OE+00 9.8E-01 1 .2E+00
0/29 1 .OE+00 9.8E-01 1 .2E+00
0/29 1 .OE+00 9.8E-01 1 .2E+00
0/29 1 .OE+00 9.8E-01 1 .2E+00
0/29 1 .OE+00 9.8E-01 1 .2E+00
0/29 1 .OE+00 9.8E-01 1 .2E+00
0/29 1 .OE+00 9.8E-01 1 .2E+00
0/29 1 .OE+00 9.8E-01 1 .2E+00
0/29 1 .OE+00 9.8E-01 1 .2E+00
0/29 1 .OE+00 9.8E-01 1 .2E+00
0/29 1 .OE+00 9.8E-01 1 .2E+00
0/29 1 .OE+00 9.8E-01 1 .2E+00
0/29 1 .OE+00 9.8E-01 1 .2E+00
0/29 1 .OE+00 9.8E-01 1 .2E+00
0/29 1 .OE+00 9.8E-01 1 .2E+00
0/29 1 .OE+00 9.8E-01 1 .2E+00
0/29 1 .OE+00 9.8E-01 1 .2E+00
0/29 1 .OE+00 9.8E-01 1 .2E+00
0/29 1 .OE+00 9.8E-01 1 .2E+00
0/29 1 .OE+00 9.8E-01 1 .2E+00
0/29 1 .OE+00 9.8E-01 1 .2E+00
0/29 1 .OE+00 9.8E-01 1 .2E+00
0/29 1 .OE+00 9.8E-01 1 .2E+00
0/29 1 .OE+00 9.8E-01 1 .2E+00
0/29 1 .OE+00 9.8E-01 1 .2E+00
22/29 1.2E+00 4.1E-01 2.7E+00
0/29 1 .OE+00 9.8E-01 1 .2E+00
0/29 1 .OE+00 9.8E-01 1 .2E+00
0/29 1 .OE+00 9.8E-01 1 .2E+00
1/29 1 .OE+00 9.8E-01 1 .2E+00
1/29 1 .OE+00 9.8E-01 1 JE+00
0/29 1 .OE+00 9.8E-01 1 .2E+00
0/29 1 .OE+00 9.8E-01 1 .2E+00
0/29 1 .OE+00 9.8E-01 1 .2E+00
0/29 1 .OE+00 9.8E-01 1 .2E+00
0/29 1 .OE+00 9.8E-01 1 .2E+00
0/29 1 .OE+00 9.8E-01 1 .2E+00
0/29 1 .OE+00 9.8E-01 1 .2E+00
0/29 1 .OE+00 9.8E-01 1 .2E+00
0/29 1 .OE+00 9.8E-01 1 .2E+00
0/29 1 .OE+00 9.8E-01 1 .2E+00
0/30 1 .OE+00 7.9E-01 1 .2E+00
Reach Data Summ_Fish.xls: Table Summ
1/17/2003
                                                                                                                                                                                                                           Page 2 of4

-------
                                 Appendix A-5
                                 Summary Statistics for Analytes in Fish Tissue

                                 Baseline Ecological Risk Assessment for the Ogden RailyardSite
Type









PAHs












PCBs (as
Aroclors)








PCBs (as
congeners)















Pesticides










Analyte
2-Chloronaphthalene
2-Methylnaphthalene
Acenaphthene
Acenaphthylene
Anthracene
Benzo [a]anthracene
Benzo[a]pyrene
Benzo [b]fluoranthene
Benzo [g,h,i]perylene
Benzo [k]fluoranthene
Chrysene
Dibenz [a,h]anthracene
Dibenzofbran
Fluoranthene
Fluorene
Indeno[l,2,3-c,d]pyrene
Naphthalene
Phenanthrene
Pyrene
Aroclor-1016
Aroclor-1221
Aroclor-1232
Aroclor-1242
Aroclor-1248
Aroclor-1254
Aroclor-1260
Aroclor-1268
PCB-105
PCB-114
PCB-118
PCB-123
PCB-126
PCB-156
PCB-157
PCB-167
PCB-169
PCB-1S9
PCB-77
PCB-81
4,4'-DDD
4,4'-DDE
4,4'-DDT
Aldrin
alpha-BHC
alpha-Chlordane
beta-BHC
delta-BHC
Dieldrin
Endosulfan I
Endosulfan II
Endosulfan Sulfate
Endrin
Endrin Aldehyde
Endrin ketone
gamma-BHC
gamm a- Chlordane
Heptachlor
Heptachlor Epoxide
Methoxychlor
Toxaphene
Units
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
pg/gww
pg/gww
pg/gww
pg/gww
pg/gww
pg/gww
pg/gww
pg/gww
pg/gww
pg/gww
pg/gww
pg/gww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
Ogden River - Reach A
DF Avg Min Max
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
4/4 6.9E+02 5.2E+02 8.6E+02
4/4 4.2E+01 3.0E+01 5.5E+01
4/4 1.8E+03 1.4E+03 2.4E+03
3/4 2.1E+01 4.9E+00 4.2E+01
0/4 5.0E+00 4.5E+00 5.4E+00
4/4 2.3E+02 1.6E+02 2.9E+02
4/4 5.2E+01 3.7E+01 6.5E+01
4/4 9.4E+01 5.6E+01 1.4E+02
0/4 l.OE+01 9.1E+00 1.1E+01
0/4 l.OE+01 9.1E+00 1.1E+01
4/4 3.1E+01 2.2E+01 4.3E+01
0/4 l.OE+00 9.1E-01 1.1E+00
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
Ogden River - Reach B
DF Avg Min Max
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
3/3 3.4E+03 1.7E+03 6.7E+03
3/3 3.1E+02 9.9E+01 6.9E+02
3/3 1.6E+04 6.2E+03 3.4E+04
0/3 1.5E+02 9.9E+00 4.2E+02
2/3 4.2E+01 2.6E+01 7.4E+01
3/3 5.3E+03 2.4E+03 9.4E+03
3/3 5.7E+02 3.5E+02 9.9E+02
3/3 3.0E+03 1.3E+03 6.4E+03
0/3 8.3E+01 9.7E+00 2.1E+02
3/3 1.1E+03 6.1E+02 1.9E+03
2/3 3.8E+01 2.2E+00 7.4E+01
0/3 1.4E+00 9.7E-01 2.2E+00
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
Ogden River - Reach C
DF Avg Min Max
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
3/3 1 .6E+03 1 .2E+03 2.0E+03
3/3 l.OE+02 7.4E+01 1.2E+02
3/3 6.2E+03 4.5E+03 7.7E+03
0/3 2.2E+01 1.5E+01 3.6E+01
3/3 3.0E+01 2.4E+01 3.5E+01
3/3 2.4E+03 1.7E+03 3.2E+03
3/3 2.3E+02 1.6E+02 3.1E+02
3/3 9.3E+02 6.8E+02 1.1E+03
0/3 3.4E+02 9.8E+00 7.5E+02
3/3 4.0E+02 2.7E+02 4.9E+02
3/3 7.9E+01 5.6E+01 l.OE+02
0/3 9.9E-01 9.8E-01 l.OE+00
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
Reach Data Summ_Fish.xls: Table Sum
1/17/2003
                                                                                                                                                                                                                           PageS of 4

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                                 Appendix A-5
                                 Summary Statistics for Analytes in Fish Tissue

                                 Baseline Ecological Risk Assessment for the Ogden RailyardSite
Type






















SVOCs























Analyte
1,2,4-Trichlorobenzene
1 ,2-Dichlorobenzene
1,3-Dichlorobenzene
1 ,4-Dichlorobenzene
2,4,5-Trichlorophenol
2,4,6-Trichlorophenol
2,4-Dichlorophenol
2,4-Dimethylphenol
2,4-Dinitrophenol
2,4-Dinitrotoluene
2,6-Dinitrotoluene
2-Chlorophenol
2-Methylphenol (o-Cresol)
2-Nitroaniline
2-Nitrophenol
3,3'-Dichlorobenzidine
3-Nitroaniline
4,6-Dinitro-o-cresol
4-Bromophenyl-phenylether
4-Chloro-3-Methylphenol
4-Chloroaniline
4-Chlorophenyl-phenylether
4-Methylphenol (p-Cresol)
4-Nitroaniline
4-Nitrophenol
Benzyl alcohol
bis(2-Chloroethoxy)methane
bis(2-Chloroethyl)ether
bis(2-Chloroisopropyl)ether
bis(2-Ethylhexyl)phthalate
bis(n-octyl)phthalate
Butylbenzylphthalate
Carbazole
Dibutylphthalate
Di ethyl phthal ate
Dimethylphthalate
Hexachlorobenzene
Hexachlorobutadiene
Hexachlorocyclopentadiene
Hexachloroethane
Isophorone
Nitrobenzene
N-Nitrosodiphenylamine
n-Nitrosodipropylamine
Pentachlorophenol (PGP)
Phenol
Units
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
mg/kg ww
Ogden River - Reach A
DF Avg Min Max
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
Ogden River - Reach B
DF Avg Min Max
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
Ogden River - Reach C
DF Avg Min Max
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
na na na na
Reach Data Summ_Fish.xls: Table Summ
1/17/2003
                                                                                                                                                                                                                            Page 4 of4

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           Appendix A-6
           Summary Statistics for Analytes in Benthic Invertebrate Tissue

           Baseline Ecological Risk Assessment for the Ogden Rally ard Site
Type





PCBs (as
congeners)





Analyte
PCB-105
PCB-114
PCB-118
PCB-123
PCB-126
PCB-156
PCB-157
PCB-167
PCB-169
PCB-189
PCB-77
PCB-81
Units
pg/g ww
pg/g ww
pg/g ww
pg/gww
pg/g ww
pg/g ww
pg/gww
pg/g ww
pg/gww
pg/g ww
pg/gww
pg/g ww
Buena Ventura Park Pond
DF Avg Min Max
1/1 1.1E+02 1.1E+02 1.1E+02
1/1 8.9E+00 8.9E+00 8.9E+00
1/1 3.1E+02 3.1E+02 3.1E+02
0/1 3.9E+00 3.9E+00 3.9E+00
0/1 3.9E+00 3.9E+00 3.9E+00
1/1 3.4E+01 3.4E+01 3.4E+01
0/1 7.8E+00 7.8E+00 7.8E+00
1/1 1.7E+01 1.7E+01 1.7E+01
0/1 7.8E+00 7.8E+00 7.8E+00
0/1 7.8E+00 7.8E+00 7.8E+00
1/1 2.1E+01 2.1E+01 2.1E+01
0/1 7.8E-01 7.8E-01 7.8E-01
Ogden River - Reach A
DF Avg Min Max
2/2 1.7E+02 1.4E+02 2.1E+02
1/2 1.4E+01 1.3E+01 1.5E+01
2/2 4.8E+02 3.8E+02 5.8E+02
0/2 9.0E+00 5.2E+00 1.3E+01
0/2 9.0E+00 5.2E+00 1.3E+01
1/2 3.9E+01 2.6E+01 5.2E+01
0/2 1.8E+01 l.OE+01 2.6E+01
1/2 2.6E+01 2.6E+01 2.6E+01
0/2 1.8E+01 l.OE+01 2.6E+01
0/2 1.8E+01 l.OE+01 2.6E+01
2/2 2.9E+01 2.8E+01 2.9E+01
0/2 1.8E+00 l.OE+00 2.6E+00
Ogden River - Reach B
DF Avg Min Max
1/1 8.0E+02 8.0E+02 8.0E+02
1/1 5.5E+01 5.5E+01 5.5E+01
1/1 4.2E+03 4.2E+03 4.2E+03
0/1 8.9E+00 8.9E+00 8.9E+00
0/1 8.9E+00 8.9E+00 8.9E+00
1/1 2.2E+03 2.2E+03 2.2E+03
1/1 1.7E+02 1.7E+02 1.7E+02
1/1 l.OE+03 l.OE+03 l.OE+03
0/1 1.8E+01 1.8E+01 1.8E+01
1/1 4.9E+02 4.9E+02 4.9E+02
1/1 9.6E+01 9.6E+01 9.6E+01
0/1 1.8E+00 1.8E+00 1.8E+00
Reach Data Summ_BMI.xls: Table Summ
1/17/2003
                                                                                                                                                    Page 1 of 1

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ECOLOGICAL RISK ASSESSMENT FOR THE OGDEN KAILYARD SITE                   FINAL
                              APPENDIX B




                      WILDLIFE EXPOSURE PROFILES

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                                                        Appendix B Wildlife Exposure Profiles

                                            Baseline Ecological Risk Assessment for the Ogden Kailyard Site
Masked Shrew
Sorex cinereus
Parameter
Habitat
Body Weight
(kg wet weight)
Food Ingestion Rate
(kg wet weight/day)
Water Ingestion Rate
(L/day)
Soil Ingestion Rate
(kg dry weight/day)
Dietary Composition
(fraction wet volume)
Home Range Size
(ha)
Seasonal Use
Symbol

BW
IRfood
IRwater
nu
df
HR

Reported Values
Masked shrews are the most common shrews in moist forests, open
country, and brush of the northern United States. High-metabolic rates
require cool, moist areas such as low damp areas in stream valleys or
floodplains.
2.4-7.8 g (mean of range = 5.1 g"
4-7g (mean of range = 5. 5g)
0.00795 - Mean - adults both sexes - Ohio laboratory
0.62 g/g- day = 0.01 kg/d = Mean - adults both sexes - Ohio lab
Can be estimated based on the following equation:
Can be estimated based on the following equation:
IRwater =0.099*BW°9°
Ingestion of soil (IR.0ii) as percentage of food intake (kg soil dry weight/kg
food dry weight) is reported at 13%. Value reported for short-tail shrew.
The masked shrew is primarily feeds on insects with beetles, flies, and an1
comprising most of their diet. Diet consists of butterflies, moths, beetle
larvae, slugs, snails, and spiders; seldom eat worms or vegetable matter.
0.39 - Mean - both sexes - Manitoba bog
No information available.
References
Zeveloff, 1988
Whitaker, 1980;
Burt&
Grossenheider, 1976
USEPA, 1993 a
USEPA, 1993
Talmage & Walton,
1993 a
Zeveloff, 1988
USEPA, 1993 a

Values Identified for ERA

Mean of reported means:
0.0053
Mean of mean values:
0.0090
Estimated from equation:
0.00089
IRsoU = IRfood * 0.32 * % soil in diet; where 0.32 (kg
food dry weight /kg food wet weight) = wet weight
to dry weight conversion factor for food assuming
32% dry matter in food:
0.00037
Concentrations in terrestrial prey items are not
available for this site; this pathway will be evaluated
qualitatively.
Reported mean selected:
0.39
No Info
    a uses values established for the short-tailed shrew
Exposure Factors.xls: Masked Shrew
1/14/2003
Page 1  of 5

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                                                       Appendix B  Wildlife Exposure Profiles

                                           Baseline Ecological Risk Assessment for the Ogden Rally ard Site
Mink
Mustela vison
Parameter
Habitat
Body Weight
(kg wet weight)
Food Ingestion Rate
(kg wet weight/day)
Water Ingestion Rate
(L/day)
Sediment Ingestion
Rate
(kg dry weight/day)
Dietary Composition
(fraction wet volume)
Home Range Size
(ha)
Seasonal Use
Symbol

BW
IRfood
IRwater
TT?
^^sediment
df
HR

Reported Values
Mink are associated with aquatic habitats including rivers, streams, lakes,
ditches, swamps, marshes and backwater areas. They prefer irregular
shorelines and brushy or wooded cover adjacent to the water.
1 .04 - Mean - adult male - summer - Montana
1 .233 - Mean - adult male - fall - Montana
0.550 - Mean - adult female- summer - Montana
0.586 - Mean - adult female - fall - Montana
0.777 - Mean - juvenile male - summer - Montana
0.533 - Mean - juvenile female - summer - Montana
0.13 g/g-day - Mean - captive males = 0.15 kg/day (using 1.14 kg BW)
0.12 g/g-day - Mean - farm raised males = 0.14 kg/day
0.16 g/g-day - Mean - farm raised females = 0.089 kg/day (0.556 BW)
0.028 g/g-day = 0.022 L/day - Mean for farm raised mink.
Sediment ingestion rates for the mink are not available. Ingestion of sediment
(IRsed) as percentage of food intake (kg dry weight/kg food dry weight) is
assumed to be equal to 1%.
Mink are opportunistic feeders taking whatever prey is abundant. In many
parts of its range mammals are the most important prey but mink hunt aquatic
prey as well depending on the season.
In mink intestines collected from Montana, percent freqency of occurrence in
samples for food items: 61.5% fish; 19.2% mammals and 26.9% aquatic
invertebrates. In mink stomachs, the frequency of occurrence was: 1 1.5%
fish, and 7.2% mammals.
Range size and shape depends on habitat. Shape is linear along streams and
circular in marshes.
Montana /riverine:
7.8 - Female mink in heavy vegetation
20.4 - Female mink in sparse vegetation
Mink are nocturnal and active year round.
References
USEPA, 1993
USEPA, 1993
USEPA, 1993
USEPA, 1993
Assumption
USEPA, 1993;
RCG/Hagler Bailly,
1995
USEPA, 1993
USEPA, 1993
Values Identified for ERA

Mean of means for females:
0.556
Mean of means for females:
0.089
Reported mean selected:
0.0584
IRsed = IR&od * 0-25 * % sediment in diet; where
0.25 (kg food dry weight /kg food wet weight) =
wet weight to dry weight conversion factor for food
assuming 25% dry matter in food:
0.0002
Fraction fish= dffish = 100%
Mean of reported values:
14.1
(aprrox. 2 km of linear shoreline)

Exposure Factors.xls: Mink
1/14/2003
Page 2 of 5

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                                                     Appendix B  Wildlife Exposure Profiles

                                          Baseline Ecological Risk Assessment for the Ogden Kailyard Site
American Robin
Turdus migratorius
Parameter
Habitat
Body Weight
(kg wet weight)
Food Ingestion Rate
(kg wet weight/day)
Water Ingestion Rate
(L/day)
Soil Ingestion Rate
(kg dry weight/day)
Dietary Composition
(fraction wet volume^
Home Range Size
(ha)
Seasonal Use
Symbol

BW
IRfood
IRwater
nu
df
HR

Reported Values
Breeds in moist forests, swamps, open woodlands, orchards, parks, and lawns.
Forages on ground in open areas along habitat edges of streams.
0.0773 - Mean - adults - Pennsylvania
0.0862 - Mean - adult male nonbreeders - New York
0.0836 - Mean - adult female nonbreeders - New York
0.0774 - Mean - adult female breeders -New York
0.0806 - Mean - adult male breeders - New York
0.0635 to 0.103 - Range breeding adults - PA (median=0.0833)
0.89 g/g-day (wet weight) - Mean - breeding free living male and females -
California = 0.0698 kg/day (BW = 0.0823 kg)
1 .52 g/g-day (wet weight) - Mean - free living adults - Kansas = 0.12 kg/day
(BW = 0.055 kg)
Specific values for the American robin are unavailable.
Estimated based on following equation
IRwater =0.059*BW°67
Specific soil ingestion values are not available for the American robin. If soil
ingestion is assumed to be proportional to the fraction of earthworms (soil
invertebrates) in the diet, then the reported soil ingestion for the American
woodcock can be used as a basis for deriving a value for the American robin.
If the diet of the woodcock is 99% earthworms and 10.4% of their diet is soil
then a robin consuming 77% earthworms will consume 8.1% soi
Western United States
Spring: fruit 17%; invertebrates 83°/
Summer: fruit 29%; invertebrates 7 10/
Fall: fruit 63%; invertebrates 37%
Winter: fruit 70%; invertebrates 30°/
Foraging home range from nests in summei
0.15- Mean - adults with nestling
0.81 - Mean - adults with fledgling;
Migratory in northern portion of range. Leave breeding grounds from Septembe
to November returning from February to April.
References
USEPA, 1993;
Sample & Suter,
1994
USEPA, 1993
USEPA, 1993
USEPA, 1993
Beyer et al., 1994;
Sample & Suter,
1994
USEPA, 1993
USEPA, 1993
• USEPA, 1993
Values Identified for ERA

Mean of reported means for breeding adults:
0.0814
Mean of two reported values:
0.078
Estimated from equation:
0.011
IRsoU = IRfood * 0.2 * % soil in diet; where 0.2 (kg
food dry weight /kg food wet weight) = wet weigh!
to dry weight conversion factor for food assuming
20% dry matter in food:
0.0012
Concentrations in terrestrial prey items are not
available for this site; this pathway will be evaluate'
qualitatively.
Mean of mean values:
0.48

Exposure Factors.xls: American Robin
1/14/2003
Page 3 of 5

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                                                                      Appendix B Wildlife Exposure Profiles

                                                          Baseline Ecological Risk Assessment for the Ogden Railyard Site
Belted Kingfisher
Ceryle alcyon
Parameter
Habitat
Body Weight
(kg wet weight)
Food Ingestion Rate
(kg wet weight/day)
Water Ingestion Rate
(L/day)
Sediment Ingestion Rate
(kg dry weight/day)
Dietary Composition
(fraction wet volume)
Home Range Size
(ha)
Foraging Distance
(km)
Seasonal Use
Symbol

BW
IRfood
IRwater
IRsed
df
HR


Reported Values
Forages on ground in open areas along habitat edges of streams, rivers
ponds and lakes where fish concentrations are greatest. Nests in burrows
that are devoid of vegetation.
0.148kg - Mean - adults - Pennsylvania
0.136kg - Mean - adults - Pennsylvania
0.158kg - Mean - adults - Ohio
0.5 g/g-day - Mean - adults - northcentral lower Michigan
(food ingestion rate calculated using a body weight of 0. 147kg)
Species specific values not available.
Estimated based on following equation:
IRwater =0.059*BW° "
Ingestion of sediment Qetl) as percentage of food intake (kg dry weight/kg
food dry weight) is not available. Because of burrowing in the banks of
rivers or streams nature while constructing nests, soil ingestion is assumed
to be 2% of the diet.
Ingestion assumption based on 9.6% sediment ingestion by bluegill
(Kolehmainen, 1974).
Michigan/trout streams :
Trout: 30%
Game fish: 13%
Forage fish: 15%
Unidentified fish: 1%
Crayfish: 41%
Invertebrates: <1% (up to 19% in spring and fall)
During the spring and early summer the breeding pairs defend both the
territory including both their nest site and their foraging area. By autumn
each bird defends an individual feeding territory only. Breeding territories
can be more than twice as long as the feeding territory. Foraging territory
is inversely related to prey abundance.
Foraging distance in early summer (breeding pairs):
2. 19 - Mean - Pennsylvania
1.03 - Mean - Ohio/streams
1.03 - Mean - southwest Ohio/streams
Migratory in northern portion of range. Leave breeding grounds from
October to December returning from February to April.
References
USEPA, 1993
USEPA, 1993
USEPA, 1993
USEPA, 1993
Assumption
USEPA, 1993
USEPA, 1993
USEPA, 1993
USEPA, 1993
Values Identified for ERA

Mean of reported means:
0.147
Reported value :
0.0735
Estimated from equation:
0.016
IRsed = IRfood * 0.27 * % sediment in diet; where
0.27 (kg food dry weight /kg food wet weight) = wet
weight to dry weight conversion factor for food
assuming 27% dry matter in food:
0.0004
Fraction fish = dfflsh = 100%
No Info
Mean of means for breeding pairs:
1.42

Exposure Factors.xls: Belted Kingfisher
1/14/2003
                                                                                                                                                                        Page 4 of 5

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                                                              Appendix B Wildlife Exposure Profiles

                                                   Baseline Ecological Risk Assessment for the Ogden Railyard Site
Mallard
Anas platyrhynchos
Parameter
Habitat
Body Weight
(kg wet weight)
Food Ingestion Rate
(kg wet weight/day)
Water Ingestion Rate
(L/day)
Sediment Ingestion
Rate
(kg dry weight/day)
Dietary Composition
(fraction wet volume)
Home Range Size
(ha)
Seasonal Use
Symbol

BW
IRfood
IRwater
IRsed
df
HR

Reported Values
Natural bottomland wetlands and rivers, reservoirs, and ponds in
winter. Dense grassy vegetation with height of at least one-half
meter, usually within a few kilometers of water, for nesting
1.225 - Mean - adult male
1.043 - Mean - adult female
1.043 to 1.814 -Range
Species specific values are not available.
Can be estimated based on following equation:
IRfood=(0.0582*BW0
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                        Appendix B Wildlife Exposure Profiles
             Baseline Ecological Risk Assessment for the Ogden Kailyard Site
                                      References

Beyer, W.N., Conner, E.E., and Gerould, S.  1994.  Estimates of soil ingestion by wildlife. J.
      Wildl. Manage. 58:375-382

Burt, W.H., and R.P. Grossenheider.  1976. Mammals (Peterson Field Guides) 3rd Edition.
      Houghton Mifflin Company, Boston, Massachusetts.

RCG/Hagler Bailly.  1995.  Terrestrial Resources Injury Assessment Report, Upper Clark Fork
      River NPL Sites. State of Montana Natural Resource Damage Program. January 1995.

Sample, B. E., and G. W. Suter. 1994. Estimating Exposure of Terrestrial Wildlife to
      Contaminants.  Environmental Sciences Division, Oak Ridge National Laboratory, Oak
      Ridge, Tennessee.  ES/ER/TM-125

Talmage, S., and  B. Walton.  1993. Food chain  transfer and potential renal toxicity to small
      mammals at a contaminated terrestrial field site. Ecotoxicology.  2: 243-256.

USEPA.  1993.  Wildlife Exposure Factors Handbook. Volume 1 and 2. Office of Research and
      Development, U.S. Environmental Protection Agency, EPA/600/R-93/187a and b.
      Washington, D.C.

Whitaker, J.O. 1980. The Audubon Society Field Guide to North American Mammals.
      Published by Alfred A. Knopf, Inc. Chanticleer Press, Inc., New York.

Zeveloff, S.I. 1988.  Mammals of the Intermountain West. University of Utah Press, Salt Lake
      City, Utah.
References for Exposure Factors.doc

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ECOLOGICAL RISK ASSESSMENT FOR THE OGDEN KAILYARD SITE                      FINAL
                                   APPENDIX C




                    DERIVATION OF TOXICITY BENCHMARKS









                                  Aquatic Receptors




             C-l:  Exposure of aquatic receptors to surface water




             C-2:  Exposure of benthic organisms to sediments




             C-3:  Exposure of benthic organisms to sediment porewater




             C-4: Maximum allowable tissue concentrations (MATCs) based on fish tissue









                                 Terrestrial Receptors




             C-5:  Exposure of plants and soil invertebrates to soil









                                  Wildlife Receptors




             C-6: Concentration-based benchmarks for ingestion of surface water & food




             C-7: Dose-based ingestion toxicity reference values (TRVs)

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                                   APPENDIX C
   SELECTION OF TOXICITY BENCHMARKS FOR ECOLOGICAL RECEPTORS
Overview	1

Aquatic Receptors (Fish & Benthic Macroinvertebrates)	2
      C-l    Benchmarks for Direct Contact With Surface Water 	2
      C-2    Benchmarks for Direct Contact with Sediment	6
      C-3    Benchmarks for Direct Contact with PAHs in Sediment Porewater	12.
      C-4    Benchmarks for Fish Tissue Burdens  	L3

Terrestrial Receptors (Plants & Soil Invertebrates)  	14_
      C-5    Benchmarks for Direct Contact with Surface Soils	14_

Wildlife Receptors                                                                18
      C-6    Concentration-Based Benchmarks for Ingestion of Surface Water & Food . ... 18
      C-7    Dose-Based Ingestion Toxicity Reference Values 	18

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Overview

The hazard quotient approach to risk characterization is based on comparison of site-related
indices of exposure to appropriate benchmarks of toxicity. These benchmarks may be
concentration-based (e.g., the concentration in soil, sediment, surface water, or diet), or may be
dose-based.  Each benchmark is chemical-specific, receptor-specific and is usually medium-
specific.

For this risk assessment, all toxicity benchmarks were based on values developed by various
regulatory agencies and published in the literature. This appendix describes the various sources
of benchmark values that were reviewed for use in this risk assessment,  and identifies the
hierarchy that was used to prioritize values when more than one value was available.

This appendix is organized into the following sections:

       Aquatic Receptors (Fish & Benthic Macroinvertebrates)

             C-l    Benchmarks for Direct Contact With Surface Water
             C-2   Benchmarks for Direct Contact with Sediment
             C-3    Benchmarks for Direct Contact with Sediment Porewater
             C-4   Benchmarks for Fish Tissue Burdens
       Terrestrial Receptors (Plants & Soil Organisms)

             C-5    Benchmarks for Direct Contact with Surface Soils


       Wildlife Receptors

             C-6    Concentration-Based Benchmarks for Ingestion of Surface Water & Food
             C-7    Dose-Based Ingestion Toxicity Reference Values

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Aquatic Receptors (Fish & Benthic Macroinvertebrates)

C-l    Benchmarks for Direct Contact With Surface Water

Toxicity values for the protection aquatic life from contaminants in surface water are available
from several sources. Each of these sources is described briefly below.

       National Ambient Water Quality Criteria

       The USEPA has established acute and chronic National Ambient Water Quality Criteria
       (NAWQC) values for surface waters for the protection of aquatic communities (USEPA
       1999a, 2001). The acute NAWQC is intended to protect against short-term (48 to 96
       hour) lethality, while the chronic NAWQC is intended to protect against long-term
       effects on growth, reproduction, and survival.  The NAWQC values are not
       species-specific, but are designed to protect 95% of the aquatic species for which toxicity
       data are available (USEPA 1985).

       Great Lake  Water Quality Initiative  Tier II Values

       The approach used for the derivation of Great Lake Water Quality Initiative (GLWQI)
       Tier II secondary acute values (SAVs) and secondary chronic values (SCVs) is similar to
       that used to derive NAWQC. Data and detailed methods and are described in Suter and
       Tsao (1996).  In brief, a secondary acute value is derived by taking the lowest genus
       mean acute value (GMAV) and dividing it by the Final Acute Value Factor (FAVF). The
       FAVF is based on the number of studies and types of species used to derive the FAV.
       Once an SAV is calculated, the geometric mean of each of the secondary acute-chronic
       ratios (SACR) is found. The SCV is calculated by dividing the SAV by the SACR.

       USEPA Region 4 Screening Values

       Screening level freshwater benchmarks for are also available from USEPA Region 4
       (USEPA, 2002).  The Region 4 acute and chronic screening values are equal to the
       lowest effect level (LEL) divided by 10 to protect for sensitive species. If no chronic
       LEL is available, the chronic screening value is equal to the lowest acute LC50 or EC50
       divided by 10.

       Canadian Water Quality Guidelines

       The Canadian Council of Ministers of the Environment (CCME) have established water
       quality guidelines (WQG) for the protection of aquatic life in Canadian waters (CCME,
       1991, 2001).  The protocol for  deriving water quality guidelines is similar to the
       NAWQC procedure. Protocol  details are available on the CCME WQG website. In
       brief, the guideline is equal to the most sensitive LOEL from a chronic exposure study
       divided by a safety factor of 10.  If a chronic LOEL is not available, the WQG is equal to

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       the acute LC50 divided by the acute/chronic ratio (ACR). The CCME WQG is designed
       to be protective of "100% of the aquatic life species, 100% of the time".

       Oak Ridge National Laboratory Lowest Chronic Values andEC20 Values

       Oak Ridge National Laboratory (ORNL) has compiled summary tables of the lowest
       chronic values (LCVs) in surface water for fish, daphnids, non-daphnid invertebrates,
       aquatic plants, and aquatic populations (Suter and Tsao, 1996).  In some instances, the
       LCVs were extrapolated from LC50 and EC50 data using fish and daphnid-specific
       equations. ORNL also summarized EC20 data for fish, daphnids, sensitive species, and
       aquatic populations. The EC20s are based on a level of biological effect and are intended
       to be indices of population production (Suter and Tsao, 1996).

       USEPA Region 5 Ecological Screening Levels

       The USEPA Region 5 has derived ecological screening levels (ESLs) for RCRA
       Appendix IX Hazardous Constituents in soil, surface water, sediment, and air (USEPA
       1999b). The surface water ESL is based on either an aquatic benchmark, which is
       protective of direct contact exposures, or a wildlife receptor-specific benchmark, which is
       protective of ingestion exposures in the mink and belted kingfisher.  The surface water
       ESL does not distinguish whether it is derived based on aquatic or wildlife exposure.

       OSWER Ecotox Thresholds

       The OSWER Ecotox Thresholds (ETs) were presented in a USEPA ECO Update Bulletin
       (USEPA,  1996). The bulletin provided an overview of the development and use of
       ecological benchmarks for surface water and sediment.  For surface water, the ET is
       based on either the chronic NAWQC or the GLWQI Tier II value.

Because the USEPA Region 5 ESLs do not make a distinction between surface water
benchmarks derived from aquatic data and wildlife data, these values were excluded from
consideration as a benchmark source.   The OSWER ETs were also excluded because they are
based on primary sources (NAWQC, GLWQI Tier II) that had been previously reviewed. For
the remaining sources, selection of the surface water toxicity benchmarks for aquatic receptors
was based on the following hierarchy:

       National Ambient Water Quality Criteria
•      Great Lake Water Quality Initiative Tier II Values
•      USEPA Region 4 Screening Values
•      Canadian Water Quality Guidelines
       Oak Ridge National Laboratory LCVs and EC20s

The surface water benchmark values from these sources are shown in Table C-la, along with the
values selected for use in the risk assessment.  For many metals and metalloids, the  NAWQC

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values are dependent on the hardness of the water, so the precise value of the acute and chronic
NAWQC that applies to a sample depends on the hardness of that sample. The equations and
parameters used to calculate the acute and chronic NAWQC values for these metals are
presented in Table C-lb. For COPC screening, a water hardness of 200 mg/L (about the average
for the site) was assumed. For risk calculations, site-specific water hardness values were used
(when available). In some cases, site-specific samples may have hardness values that are outside
the range of hardness values used to  develop the equations. Because extrapolation of the
equations outside this hardness range is uncertain, lower and upper bounds (equal to the lower
and upper bounds of the data set used to derive the equation) were applied whenever site
hardness values were outside the range.

References:

Canadian Council of Ministers of the Environment (CCME). 1991. Appendix IX - A Protocol
for the Derivation of Water Quality Guidelines for the Protection of Aquatic Life. April 1991.
In: Canadian Water Quality Guidelines, CCME, 1987.  Prepared by the Task Force on Water
Quality Guidelines. [Updated and reprinted with minor revisions and editorial changes in
Canadian Environmental Quality Guidelines, Chapter 4, CCME, 1999, Winnipeg.]
http://www.ee.gc.ca/ceqg-rcqe/English/Pdf/water_protocol-aquatic_life.htm

Canadian Council of Ministers of the Environment (CCME). 2001. Canadian Water Quality
Guidelines, Summary Table - Updated. In: Canadian Environmental Quality Guidelines, 1999,
CCME, Winnipeg.
http://www.ee.gc.ca/ceqg-rcqe/English/Pdf/water_summary _table-aquatic_life.htm

Suter II, GW and CL Tsao.  1996. Toxicological Benchmarks for Screening Potential
Contaminants of Concern for Effects on Aquatic Biota: 1996 Revision.  Oak Ridge National
Laboratory. Document # ES/ER/TM-96/R2. June 1996.

US Environmental Protection Agency (USEPA).  1985. Guidelines for Deriving Numerical
National Water Quality Criteria for the Protection of Aquatic Organisms and Their Uses. NTIS
Document Number PB85-227049. US Environmental Protection Agency, Office of Research
and Development.

US Environmental Protection Agency (USEPA).  1996. ECO Update: Ecotox Thresholds.
Intermittent Bulletin. Volume 3, Number 2, January 1996.  EPA 540/F-95/038.

US Environmental Protection Agency (USEPA).  1999a. National Recommended Water Quality
Criteria — Correction.  US Environmental Protection Agency, Office of Water. EPA
822-Z-99-001.

US Environmental Protection Agency (USEPA).  1999b. Region 5 Ecological Screening Levels
for RCRA Appendix IX Hazardous Constituents. Working Draft 1999. United States
Environmental Protection Agency, Region 5.

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US Environmental Protection Agency (USEPA). 2001. Update of Ambient Water Quality
Criteria for Cadmium. United States Environmental Protection Agency, Office of Water. EPA-
822-R-01-001.

US Environmental Protection Agency (USEPA). 2002. Region 4 Ecological Risk Assessment
Bulletins - Supplement to RAGS. Downloaded on July 15, 2002 from website:
http ://www. epa.gov/region04/waste/ots/ecolbul .htm

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C-2    Benchmarks for Direct Contact with Sediment

Toxicity values for the protection benthic macroinvertebrates from contaminants in freshwater
sediment are available from several sources. Each of these sources is described briefly below.

       Consensus-Based Sediment Quality Guidelines

       MacDonald et al. (2000) issued consensus-based sediment quality guidelines (SQGs) for
       28 chemicals of concern, in an effort to focus on agreement among the various sediment
       quality guidelines. For each chemical of concern, a threshold effect concentration (TEC)
       and a probable effect concentration (PEC) were identified based on available sediment
       toxicity literature.  The consensus-based TECs were calculated by determining the
       geometric mean of all threshold effect values from the literature. The consensus-based
       PECs were calculated by determining the geometric mean of all probable effect values
       from the literature.  A summary of the types of sediment effect concentrations included in
       the TEC and PEC calculations is provided in MacDonald et al. (2000).

       The predictive reliability of these values were also evaluated. The predictive ability
       analyses were focused on the ability of each SQG when applied alone to classify samples
       as either toxic or non-toxic. Sediment toxicity should be observed only rarely below the
       TEC and should be frequently observed above the PEC.  Individual TECs were
       considered reliable if more than 75% of the sediment samples were correctly predicted to
       be non-toxic.  Similarly, the individual PEC was considered reliable if greater than 75%
       of the  sediment samples were correctly predicted to be toxic. The SQGs were considered
       to be reliable only if a minimum of 20 samples were included in the predictive ability
       evaluation (MacDonald et al. 2000).

       Because field  collected sediments contain a mixture of chemicals, a second analysis was
       completed to investigate whether the toxicity of a sediment could be predicted based on
       the average of the PEC ratios for the sediment, using only the PEC values that were
       found  to be reliable. It was found that 92% of sediment samples with a mean PEC
       quotient > 1.0 were toxic to one or more species of aquatic organisms. The mean PEC
       quotient was found to be highly correlated with incidence of toxicity (R2 = 0.98)
       (MacDonald et al. 2000).

       ARCS Sediment Effect Concentrations

       As part of the  Assessment and Remediation  of Contaminated Sediment (ARCS) Project,
       Ingersoll et al. (1996) compiled freshwater sediment toxicity data from nine different
       sites in the United States and identified a series of sediment effect concentrations (SECs)
       for a series of metals in sediment.  The SECs are defined as the concentrations of
       individual contaminants in sediment below which toxicity is rarely observed and above
       which toxicity is frequently observed.  The database was compiled to classify toxicity
       data for Great Lakes sediment samples and is segregated into "effect" data and "no

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effect" data. Ingersoll et al.(1996) derived five different SECs; effect range low (ERL),
effect range median (ERM), threshold effect level (TEL), probable effect level (PEL) and
no effect concentration (NEC).  The derivation of each of these SECs is presented below:

•      effect range low (ERL) = 10* percentile of adverse effect data
       effect range median (ERM) = 50th percentile (median)  of adverse effect data
•      no effect range median (NERM) = 5 0th percentile (median) of no effect data
       no effect range high (NERH) = 85th percentile of no effect data
•      threshold effect level (TEL) = geometric mean of ERL and NERM
•      probable effect level (PEL) = geometric mean of ERM and NERH
•      no effect concentration (NEC) = maximum of no effect data

The ERL is defined as the concentration below which adverse effects are unlikely to
occur.  The ERM is defined as the concentration of a chemical above which effects are
frequently or always observed or predicted among most species. The NEC is the
maximum concentration of a chemical in sediment that does not significantly adversely
affect the particular response when compared to the control.

Equilibrium-Partitioning Guidelines for PAHs

The equilibrium-partitioning sediment guidelines (EqPs or ESGs) for PAHs are based on
the predicted partitioning of PAHs between sediment and pore water, taking the total
organic carbon (TOC) of the sediment into account (USEPA 2000).  These ESGs are
intended to be protective of benthic organisms from sediment pore water concentrations
associated with chronic toxicity to aquatic organisms. ESGs are available for ten specific
PAHs. ESGs do not consider toxicity associated with photoactivation of PAHs.

USEPA Region 5 Ecological Screening Levels

The USEPA Region 5 Ecological Screening Levels (ESLs) for sediment were developed
based on available federal freshwater sediment criteria and state-promulgated sediment
quality guidelines (USEPA 1999). If no freshwater guidelines were available, marine
criteria were used.  For those chemicals for which no guidelines were available, an
interim ESL was developed using the equilibrium partitioning approach.  These interim
guidelines were developed for both nonpolar and polar organic constituents.  The
equilibrium partitioning method is generally only applied to nonpolar organics, however,
it was assumed to be a satisfactory method for organics for use on a screening level
approach (USEPA  1999).  The ESL was derived from the lowest federal, state or interim
water quality guideline and assumes a total organic carbon content of 1%.

NOAA Sediment Effect Concentrations

The National Oceanic and Atmospheric Administration (NOAA) compiled sediment data
from studies performed in both freshwater and saltwater (originally presented in NOS
OMA Technical Memo 52, Long and Morgan 1990).The NOAA ERL and ERM were

                                    7

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developed using the same procedures as outlined for the ARCS Project (Ingersoll et al.
1996).  The NOAA ERL is defined as the concentration of a chemical in sediment below
which adverse effects are rarely observed or predicted among sensitive species. The
NOAA ERM is representative of concentrations above which effects frequently occur.
The original data set used by Long and Morgan (1990) has since been supplemented with
additional saltwater data, therefore these additional marine reports are not applicable (ie:
Longetal. 1995).

USEPA Region 4 Screening Levels

The USEPA Region 4 Screening Levels are derived from three different sediment effects
data sets including NOAA freshwater and marine data from Long and Morgan (1990),
additional NOAA marine data from Long et al. (1995), and Florida State Department of
Environmental Protection marine data from MacDonald et al. (1996).  The sediment
effect level is based on the reported ERL from each study. In instances when the USEPA
Contract Laboratory Program (CLP) practical quantitation limit (PQL) is above the effect
level, the screening value is equal to the CLP PQL (USEPA 2002).

CCME Sediment Quality Guidelines

The Canadian Council of Ministers of the Environment (CCME) derived sediment
quality guidelines to support protection and management strategies for freshwater,
estuarine, and marine ecosystems (CCME 1995). Guideline derivation protocols are
detailed in CCME (1995) and are similar to the procedures described previously for the
ARCS Project (Ingersoll et al. 1996). Separate guidelines were derived for freshwater
and marine sediments (CCME 2001).  The freshwater interim sediment quality guideline
(ISQG) was equal to the TEL and is representative of the concentration below which
adverse  effects are not anticipated for aquatic life associated with bed sediments (CCME
1995). A PEL was also calculated to establish concentrations above which adverse
effects are likely to occur.

Ontario Sediment Effect Levels

Persaud et al. (1993) derived sediment effect levels for the protection of aquatic
organisms in Ontario, Canada. Three types of sediment quality guidelines were
developed; a No Effect Level (no toxic effects), a Low Effect Level (tolerable by benthic
species), and a Severe Effect Level (detrimental to most benthic species). A summary
and review of the available approaches to sediment guideline development and the
protocol for the derivation of the Ontario values is described in detail in Persaud et al.
(1993).  Briefly, the No Effect Level is obtained through a chemical equilibrium
approach using water quality standards.  Because the equilibrium partitioning approach is
only predictive for nonpolar organics, a No Effect Level is not derived for metals and
polar organics.  The Low Effect Level and Severe Effect Level are based on the 5th and
95th percentiles of all effects data for bulk sediment analysis, respectively.  For non-polar

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organics these concentrations were normalized for total organic carbon.

Oak Ridge National Laboratory Equilibrium Partitioning Guidelines

Oak Ridge National Laboratory (ORNL) has compiled summary tables of the lowest
chronic values (LCVs) in surface water for fish, daphnids, and non-daphnid invertebrates
for nonionic organics (see Section C-l).  Using on these values, sediment equilibrium
partitioning (EqP) guidelines were calculated based on the chemical Koc and normalizing
to 1% total organic carbon (Jones et al. 1997).  Secondary chronic values (SCVs),
intended to be conservative predictors of effects, were also calculated using the same EqP
approach.

USEPA Region 6 Sediment Guidelines

The USEPA Region 6 sediment guidelines were compiled from many of the common
sediment toxicity data sources described  above. Benchmarks are provided  in the
ecological risk assessment guidance prepared by the Texas Resource Conservation
Commission (TNRCC, 2001).

Syracuse Research Corporation Equilibrium Partitioning Values

Syracuse Research Corporation (SRC) derived sediment benchmarks using the
equilibrium partitioning approach for analytes detected in sediment where other
"preferred" benchmarks were unavailable from common and generally accepted sources.
In accord with USEPA guidance (USEPA, 1993), benchmarks were only derived for
nonionic organics.  That is, organics that would carry a charge (either positive or
negative) within the pH range of about 5-9 were not evaluated with this approach.
Sediment benchmarks were calculated based on the following equation:

       Benchmarksed = Benchmarkwater * Koc * foe

The water benchmark used to derive the sediment benchmark is the chronic surface water
benchmark as presented in Table C-la. The Koc is the partitioning coefficient of a
chemical between water and organic carbon, and is used to describe the distribution of a
chemical between the organic fraction of sediment and the interstitial water. The units of
Koc are mg of chemical per kg organic carbon per mg/L in water. Values for Koc were
obtained from the Environmental Fate Database CHEMFATE (SRC, 2002). The foe is
the fraction organic carbon in the sediment (kg of organic carbon per kg bulk sediment).
The value of foe used to calculate screening level sediment benchmarks was 0.003
(0.3%), which is the 5th percentile of site  total organic carbon measurements.  The
screening sediment benchmarks as estimated from the EqP approach are presented in
Table C-2a.

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Of these sources, the following were excluded from use in this risk assessment due to inadequate
documentation of derivation methodology, use of site-specific assumptions, use of marine or
estuarine sediments, or use of inappropriate receptors:

•      USEPA Region 4 Screening Levels
•      USEPA Region 5 Ecological Screening Levels
       CCME Sediment Quality Guidelines (ISQG/PEL)
•      Ontario Sediment Effect Levels (Low/Severe)
       ORNL EqP Guidelines

Of the remaining sources, a benchmark selection hierarchy was established for each chemical
class of compounds analyzed in sediment. The selection hierarchy is shown in Figure C-l and a
summary of all selected sediment toxicity benchmarks is shown in Table C-2b. For those
chemicals in which the benchmarks are reported in the original source as normalized for total
organic carbon, a TOC of 0.003 (0.3%; the 5th percentile of site total organic carbon
measurements) was used to select chemicals of potential concern in sediment. For the purposes
of estimating risks, these benchmarks were adjusted using the sample-specific total organic
carbon.

References:

Canadian Council of Ministers of the Environment (CCME).  1995. Protocol for the Derivation
of Canadian Sediment Quality Guidelines for the Protection of Aquatic Life. CCME EPC-98E.
Prepared by Environment Canada, Guidelines Division, Technical Secretariat of the CCME Task
Group on Water Quality Guidelines, Ottawa. [Reprinted in Canadian Environmental Quality
Guidelines, Chapter 6, CCME, 1999, Winnipeg.]

Canadian Council of Ministers of the Environment (CCME). 2001. Canadian Sediment Quality
Guidelines for the Protection of Aquatic Life:  Summary Tables - Updated. In: Canadian
Environmental Quality Guidelines, CCME, 1999, Winnipeg.

Jones, DS, GW Suter II, RN Hull.  1997. Toxicological Benchmarks for Screening
Contaminants of Potential Concern for Effects on Sediment-Dwelling Biota: 1997 Revision.
Oak Ridge National Laboratory. Document # ES/ER/TM-95/R4.

Long, ER and LG Morgan. 1990.  The Potential for Biological Effects of Sediment-Sorbed
Contaminants Tested in the National Status and Trends Program. National Oceanic and
Atmospheric Administration Publication. Technical Memorandum NOS OMA 52. March 1990.

Long, ER, DD MacDonald, SL Smith, FD Calder.  1995.  Incidence of Adverse Biological
Effects Within Ranges of Chemical Concentrations in Marine and Estuarine Sediments.
Environmental Management 19(1):81-97.
                                          10

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MacDonald, DD, RS Carr, FD Calder, ER Long, CG Ingersoll.  1996. Development and
Evaluation of Sediment Quality Guidelines for Florida Coastal Waters. Ecotoxicology 5:253-
278.

MacDonald, DD, CG Ingersoll and TA Berger.  2000.  Development and Evaluation of
Consensus-Based Sediment Quality Guidelines for Freshwater Ecosystems. Archives of
Environmental Contamination and Toxicology 39:20-31.

Persaud, D, R Jaagumagi, H Hayton. 1993. Guidelines for the Protection and Management of
Aquatic Sediment Quality in Ontario.  Ontario Ministry of the Environment, Waster Resources
Branch, Toronto. August 1993.  ISBN 0-7729-9248-7.

Syracuse Research Corporation (SRC). 2002. Environmental Fate Database (EFDB),
CHEMFATE. Syracuse Research Corporation, Environmental Science Center.
Website: http://esc.syrres.com/efdb.htm updated on November 1, 2002.

Texas Natural Resource  Conservation Commission (TNRCC). 2001. Guidance for Conducting
Ecological Risk  Assessments at Remediation Sites in Texas. Document ID RG-263 revised
version. December 2001.

US Environmental Protection Agency (1993). Technical Basis for Establishing Sediment
Quality Criteria  for Nonionic Organic Contaminants for the Protection of Benthic Organisms
Using Equilibrium Partitioning. Draft. EPA-822-R93-011. U.S. Environmental Protection
Agency, Office of Science and Technology, Health and Ecological Criteria Division,
Washington, D.C.

US Environmental Protection Agency (USEPA). 2000. Equilibrium Partitioning Sediment
Guidelines (ESGs) for the Protection of Benthic Organisms: PAH Mixtures. Final Draft.
USEPA, Office of Science and Technology and Office of Research and Development. April 5,
2000.

US Environmental Protection Agency (USEPA). 2002. Region 4 Ecological Risk Assessment
Bulletins - Supplement to RAGS. Downloaded on July 15, 2002 from website:
http ://www. epa.gov/region04/waste/ots/ecolbul .htm
                                         11

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C-3   Benchmarks for Direct Contact with PAHs in Sediment Porewater

For polycyclic aromatic hydrocarbon (PAH) compounds, the USEPA has derived PAH-specific
final chronic values (FCVs) for sediment porewater.  These values are intended to protect against
the narcotic effects that PAHs cause in benthic organisms. Because the narcotic effect level for
different PAHs is strongly correlated with Kow, the PAH-specific FCV is calculated from the Kow
for that PAH value using the following equation:

      Iog10 (PAH-specific FCV umol/L) = -0.945 •  log10(Kow) + Iog10(2.24)

The porewater benchmark values for PAHs in sediment porewater calculated using this equation
are shown in Table C-3.

References:

US Environmental Protection Agency (USEPA).  2000. Equilibrium Partitioning Sediment
Guidelines (ESGs) for the Protection of Benthic Organisms: PAH Mixtures. Final Draft.
USEPA, Office of Science and Technology and Office of Research and Development. April 5,
2000.
                                         12

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C-4    Benchmarks for Fish Tissue Burdens

Jarvinen and Ankley (1999) have compiled a comprehensive database of tissue residue data for
aquatic organisms exposed to inorganic and organic chemicals. For this risk assessment,
attention was focused on benchmarks that were based on survival, growth and reproduction of
aquatic receptors. Tissue burden benchmarks were selected for fish carcass, fillet, liver and
whole body for all detected chemicals based on the lowest reported concentration that did not
cause an effect in freshwater fish species. In cases where an MATC was available only for
whole body, a tissue-specific MATC was derived by assuming that the concentration in the
tissue was proportional to the lipid content of the tissue:

       MATCtlssue = MATCwholebody * (Lipid Content^ / Lipid Content^ body)

The tissue burden benchmark values for all chemicals detected in fish tissue are shown in Table
C-4.

References:

Jarvinen, AW and GT Ankley.  1999. Linkage of Effects to Tissue Residues: Development of a
Comprehensive Database for Aquatic Organisms Exposed to Inorganic and Organic Chemicals.
Society of Environmental Toxicology and Chemistry (SET AC) Publication.
                                           13

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Terrestrial Receptors (Plants & Soil Invertebrates)

C-5    Benchmarks for Direct Contact with Surface Soils

Toxicity values for the protection aquatic life from contaminants in surficial soils are available
from several sources. Each of these sources is described briefly below.

       Oak Ridge National Laboratory Plants/Soil Organisms/Microbes

       Oak Ridge National Laboratory (ORNL) reviewed data on the toxicity of chemicals in
       soil on a wide range of plants, soil organisms, and microbes, and determined the lowest
       observed effect concentration (LOEC) (Efroymson et al. 1997a,b).  The LOEC was
       defined as the lowest applied concentration of the chemical causing a greater than 20%
       reduction in the measured response.  In some cases, the LOEC was the lowest
       concentration tested or the only concentration reported (EC50 or ED50 data). The
       LOECs for a series of different plants and soil organisms were rank ordered and a value
       selected that approximated the 10th percentile. When a benchmark was based on a
       lethality endpoint, the benchmark value was divided by 5 to approximate an effects
       concentration for growth and reproduction. The factor was selected based on the author's
       judgement (Efroymson et al. 1997a,b).  The benchmark values were then rounded to one
       significant figure.

       Dutch Target and Intervention Values

       The Dutch Target and Intervention Values were derived from available data on
       ecotoxicological effects of contaminants  in soil to terrestrial species and soil microbial
       processes (Swartjes 1999). The Target Values for soil are related to negligible risk for
       soil ecosystems (95% protection). The Intervention Values  are defined as the hazardous
       concentration for 50% of the soil ecosystem population and  are not protective of sensitive
       species.  The Dutch benchmarks were developed by reviewing available literature to
       determine the lowest no observed effect concentration (NOEC).  When there was a
       LOEC but no NOEC, the NOEC was estimated from the LOEC according to the effect
       level observed at the LOEC, as follows:
LOEC Effect Range
10% -20%
20% - 50%
50% - 80%
NOEC
LOEC / 2
LOEC / 3
LOEC/ 10
       The ecotoxicological data were selected according to the criteria established in
       Crommenentujin et al. (1994) and were normalized for soil characteristics such as
       organic matter and clay content.  If not enough data were available for terrestrial species
                                           14

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and microbial processes, aquatic data (adjusted by an uncertainty factor of 10) were used
to derive the benchmark values (Swartjes 1999).

CCME Soil Quality Guidelines

The Canadian Council of Ministers of the Environment (CCME) established effects-
based environmental soil quality guidelines (SQGE) designed to be clean-up goals to
protect ecological receptors from direct contact and ingestion exposures to soil-based
contaminants.  From the available soil toxicity literature, CCME compiled an adverse
effect data set and a no effect data set. Several SQGEs were calculated based on land use
types (agricultural -A, residential/parkland-R/P, commercial/industrial-C/I). Based on the
amount of toxicity data available, different derivation methods are used to calculate the
land use SQGE. Each of these methods are detailed in CCME (1999) and described
briefly below.

       Weight-of Evidence Method
       A, R/P Land Uses = threshold effects concentration (TEC), 25th percentile of effect and
       no effect data sets divided by an uncertainty factor
       C/I Land Use = effects concentration low (ECL), 25th percentile of effect data set

       Lowest-Observed-Effect Concentration (LOEC) Method
       A, R/P Land Uses = lowest available LOEC divided by an uncertainty factor
       C/I Land Use = geometric mean of available LOEC data

       Median Effects Method
       A, R/P Land Uses = lowest available EC50 or LC50 divided by an uncertainty factor
       C/I Land Use = no guideline calculated

In addition to calculating an SQGE, CCME also derived SQGs for human health
       j).  The final soil guideline is the minimum of the SQGE and the
USEPA Region 4 Ecological Screening Levels

The USEPA Region 4 compiled soil toxicity screening benchmarks from several sources
including ORNL (Efroymson et al. 1997a,b), CCME (CCME 1997), and Dutch values
(Crommenentujin et al. 1994).  From these sources, screening levels were selected based
on contaminant levels associated with ecological effects (USEPA 2002). These
screening values do not take into account area or regional background levels.

USEPA Region 5 Ecological Screening Levels

The USEPA Region 5 reviewed and evaluated soil quality criteria from international,
federal, and state sources (USEPA 1999). A default soil ecological screening level (ESL)
was selected based on the lowest receptor-specific ESL for terrestrial (plant/soil
organisms) and wildlife receptors found during a review of existing toxicological

                                     15

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       information.  The ESL was derived from the concentration which resulted in no observed
       adverse effects (NOAEL) for chronic exposure of the target species. When a chronic
       value was not available, the most relevant toxicological result was adjusted by division
       with uncertainty factors as appropriate to approximate the chronic NOAEL for the
       selected receptor (USEPA 1999).

Because the CCME final SQGs do not make a distinction between ecological and human health
benchmarks, they were not included as a benchmark source.  Because the USEPA Region 5
ESLs do not make a distinction between soil benchmarks derived from plant/soil organism data
and wildlife data, these values were excluded from consideration as a benchmark source. The
Region 4 benchmarks were also excluded because they are based on primary sources that had
been previously reviewed. For the remaining sources, selection of the surficial soil toxicity
benchmarks for terrestrial receptors was based on the following hierarchy:

•      Minimum of the ORNL plant, soil organism, microbe benchmarks
•      Dutch Target

The soil benchmark values for all chemicals analyzed in surface soils are shown in Table C-5.
References:

Canadian Council of Ministers of the Environment (CCME).  1997. Recommended Canadian
Soil Quality Guidelines. CCME, Winnipeg.

Canadian Council of Ministers of the Environment (CCME).  1999. Canadian Soil Quality
Guidelines for the Protection of Environmental and Human Health: Summary of the Protocol for
the Derivation of Environmental and Human Health Soil Quality Guidelines.  In: Canadian
Environmental Quality Guidelines, Chapter 7, CCME, 1999, Winnipeg.

Crommentuijin, GH, EJ Van der Plassche and JH Canton.  1994. Guidance Document on the
Derivation of Ecotoxicological Criteria for Serious Soil  Contamination in View of the
Intervention Value for Soil Clean-up. RIVM report 950011003. RIVM, Bilthoven, The
Netherlands.

Efroymson, R.A., M.E. Will, G.W. Suter II, and A.C.  Wooten. 1997a. Toxicological
Benchmarks for Screening Contaminants of Potential  Concern for Effects on Terrestrial Plants:
1997 Revision.  Prepared for the U.S. Department of Energy, Office of Environmental
Management by Lockheed Martin Energy Systems, Inc.  managing the Oak Ridge National
Laboratory  (ORNL).  ORNL publication. ES/ER/TM-85/R3, November 1997.

Efroymson, R.A., M.E. Will and G.W. Suter II.  1997b.  Toxicological Benchmarks for
Contaminants of Potential Concern for Effects on Soil and Litter Invertebrates and Heterotrophic
Process:  1997 Revision.  Prepared for the U.S. Department of Energy, Office of Environmental

                                          16

-------
Management by Lockheed Martin Energy Systems, Inc. managing the Oak Ridge National
Laboratory (ORNL). ORNL publication. ES/ER/TM-126/R2, November 1997.

Swartjes, FA. 1999. Risk-Based Assessment of Soil and Groundwater Quality in the
Netherlands: Standards and Remediation Urgency.  Risk Analysis 19(6): 1235-1249.

US Environmental Protection Agency (USEPA). 1999b. Region 5 Ecological Screening Levels
for RCRA Appendix IX Hazardous Constituents. Working Draft 1999. United States
Environmental Protection Agency, Region 5.

US Environmental Protection Agency (USEPA). 2002. Region 4 Ecological Risk Assessment
Bulletins - Supplement to RAGS. Soil Screening Values.  From: Friday, GP. 1998. Ecological
Screening Values for Surface Water, Sediment, and Soil. Westinghouse Savannah River
Company, Savannah River Technology Center.  Report ID WSRC-TR-98-00110. Downloaded
on July 15, 2002 from website: http://www.epa.gov/region04/waste/ots/ecolbul.htm
                                         17

-------
Wildlife Receptors

Sample et al. (1996) summarized available literature on the toxicity of chemicals in wildlife
receptors.  From these studies, Sample et al (1996) developed toxicity reference values (TRVs)
for mammals and birds based on the No Observed Adverse Effect Level (NOAEL) and the
Lowest Observed Adverse Effect Level (LOAEL) TRV.

C-6    Concentration-Based Benchmarks for Ingestion of Surface Water & Food

After a NOAEL and LOAEL dose were identified, Sample et al. (1996) back-calculated
concentration-based surface water and dietary TRVs for several different avian and mammalian
receptors using default body weight and intake rates.  The lowest NOAEL concentration-based
TRVs for the receptors of concern at this site for all chemicals analyzed in  environmental and
biological media are shown in Table C-6.  These concentration-based TRVs were used to select
chemicals of potential concern (COPCs) in surface water, sediment, soil and food items for
wildlife. Because specific TRVs are not available for sediment and soil ingestion pathways,
food TRVs were used to evaluate these ingestion exposures.
C-7    Dose-Based Ingestion Toxicity Reference Values

For the purposes of calculating hazard quotients (HQs) for quantitative wildlife COPCs, the
avian and mammalian NOAEL and LOAEL dose-based TRVs selected by Sample et al. (1996)
were used.  All available dose-based studies for avian and mammalian receptors presented in
Sample et al. (1996) for the quantitative wildlife COPCs at this site are presented in Table C-7a
and C-7b, respectively.

When no reliable toxicity data could be located for a site surrogate receptor, it was necessary to
extrapolate toxicity data from studies using another type of receptor.  Toxicity data were not
extrapolated across receptor classes (ie: mammalian data were not extrapolated to avian
receptors).  Table C-7c presents the dose-based TRVs used in this assessment to evaluate risks to
wildlife receptors from ingestion of contaminants in surface  water, soil, sediment and food items.
References:

Sample, BE, DM Opresko, GW Suter II. 1996. Toxicological Benchmarks for Wildlife: 1996
Revision.  Oak Ridge National Laboratory. Document Number ES/ER/TM-86/R3.  June 1996.
                                          18

-------
                                                              Table C-la
                                        Surface Water Toxicity Benchmarks for Aquatic Receptors

                                      Baseline Ecological Rish Assessment for the Ogden Railyard Site
Analyte
Type
Inorganics
Pesticides
ic Aromatic Hydrocarbons (PAHs)
0
£
£
Analyte
Aluminum
Antimony
Arsenic
Barium
Beryllium
Cadmium
Calcium
Chromium III
Cobalt
Copper
Iron
Lead
Magnesium
Manganese
Mercury
Nickel
Potassium
Selenium
Silver
Sodium
Thallium
Vanadium
Zinc
4,4-DDD
4,4-DDE
4,4-DDT
Aldnn
BHC, alpha
BHC, beta
BHC, delta
BHC, gamma (Lindane)
Chlordane
Dieldrin
Endosulfan I
Endosulfan II
Endosulfan sulfate
Endrin
Endrm aldehyde
Heptachlor
Heptachlor epoxide
Isodrin
Kepone
Methoxychlor
Toxaphene
2-Chloronaphthalene
2-Methylnaphthalene
Acenaphthene
Acenaphthylene
Aniline
Anthracene
Benz[a]anthracene
Benzo(ghi)perylene
Benzo[a]pyrene
Benzo [b] fluoranthene
Benzo [k] fluoranthene
Chrysene
Dibenz[ah]anthracene
Dibenzofuran
Fluoranthene
Fluorene
Indeno[l ,2,3-cd]pyrene
Naphthalene
Phenanthrene
Pyrene
ACUTE
NAWQC -
Acute (mg/L) '
0.75
-
0.34
-
-
0.0043 4

3.181 4
-
0.027 4

0.197 4
-
-
0.0014
0.843 4
-

0.013 4

-

0.216 4

-
0.0011
0.003

-

0.00095
0.0024
0.00024
0.00022
0.00022
-
0.000086

0.00052
0.00052
-


0.00073
-


-
-


-
-


-
-


-
-


-
GLWQI Tier
TISAV
(mg/L)2
-
0.18

0.11
0.035
-


1.5
-


-
2.3


-



0.11
0.28

0.00019
-



-



-


-
-

0.000125
-
-


-
-


-
-
0.013
0.00049
-
0.00024


-
-
0.066

0.07
-
0.19

-
USEPA R4 -
Acute (mg/L)
0.75
1.3
0.36
-
0.016
0.00392

1.74
-
0.0177

0.0816
-
-
0.0024
1.42
-
0.02
0.00406

0.14

0.117
0.000064
0.105
0.0011
0.003

-

0.002
0.0024
0.0025


-
0.00018

0.00052
-
-


0.00073
-

0.17
-
-


-
-


-
-

0.398
-
-
0.23

-
Surface Water
Acute
Benchmark
rnip/r.i
7.5E-01
1 .8E-01
3.4E-01
1.1E-01
3.5E-02
4.3E-03
no benchmark
3.2E+00
1 .5E+00
2.7E-02
no benchmark
2.0E-01
no benchmark
2.3E+00
1 .4E-03
8.4E-01
no benchmark
2.0E-02
1 .3E-02
no benchmark
1.1E-01
2.8E-01
2.2E-01
1.9E-04
1.1E-01
1.1E-03
3.0E-03
no benchmark
no benchmark
no benchmark
9.5E-04
2.4E-03
2.4E-04
2.2E-04
2.2E-04
no benchmark
8.6E-05
no benchmark
5.2E-04
5.2E-04
no benchmark
no benchmark
no benchmark
7.3E-04
no benchmark
no benchmark
1.7E-01
no benchmark
no benchmark
1 .3E-02
4.9E-04
no benchmark
2.4E-04
no benchmark
no benchmark
no benchmark
no benchmark
6.6E-02
4.0E-01
7.0E-02
no benchmark
1 .9E-01
no benchmark
no benchmark
CHRONIC
NAWQC -
Chronic (mg/L) :
0.087
-
0.15
-
-
0.0005 4

0.152 4
-
0.017 4
1
0.0077 4
-
-

0.094 4
-
0.005
0.0013 3,4

-

0.216 4

-

0.0003 3

-

0.000095 3
0.0000043
0.000056
0.000056
0.000056
-
0.000036

0.0000038
0.0000038
-

0.00003
0.0000002
-


-
-


-
-


-
-


-
-


-
GLWQI Tier
nscv
(mg/L)2
-
0.03

0.004
0.00066
-


0.023
-


-
0.12
0.0013

-

0.00036

0.012
0.02

0.000011
-
0.000013


-



-


-
-

0.0000069
-
-

0.000019
-
-


-
-
0.00073
0.000027
-
0.000014


-
-
0.0037

0.0039
-
0.012

-
USEPA R4 -
Chronic
(mg/L)2
0.087
0.16
0.19
-
0.00053
0.00113

0.207
-
0.0118
1
0.00318
-
-
0.000012
0.158
-
0.005
0.000012

0.004

0.106
0.0000064
0.0105
0.000001
0.0003
0.5
5

0.00008
0.0000043
0.0000019


-
0.0000023

0.0000038
-
-

0.00003
0.0000002
-

0.017
-
-


-
-


-
-

0.0398
-
-
0.062

-
Other
(mg/Lf
-
-

-
-
-
116

-
-


82
-


53


680
-



-



-



-


-
-


-
-


-
-


-
0.0022


-
-


-
-


-
-


0.000025
Surface Water
Chronic
Benchmark
rniP/T.l
8.7E-02
3.0E-02
1 .5E-01
4.0E-03
6.6E-04
4.5E-04
1 .2E+02
1 .5E-01
2.3E-02
1 .7E-02
1 .OE+00
7.7E-03
8.2E+01
1 .2E-01
1 .3E-03
9.4E-02
5.3E+01
5.0E-03
1 .3E-03
6.8E+02
1 .2E-02
2.0E-02
2.2E-01
1.1E-05
1.1E-02
1.3E-05
3.0E-04
5.0E-01
5.0E+00
no benchmark
9.5E-05
4.3E-06
5.6E-05
5.6E-05
5.6E-05
no benchmark
3.6E-05
no benchmark
3.8E-06
3.8E-06
no benchmark
no benchmark
3.0E-05
2.0E-07
no benchmark
no benchmark
1 .7E-02
no benchmark
2.2E-03
7.3E-04
2.7E-05
no benchmark
1 .4E-05
no benchmark
no benchmark
no benchmark
no benchmark
3.7E-03
4.0E-02
3.9E-03
no benchmark
1 .2E-02
no benchmark
2.5E-05
SWBenchmarks.xls: SWBnchmrks
1/13/2003
                                                                                                                               Pagel of 4

-------
                                                              Table C-la
                                        Surface Water Toxicity Benchmarks for Aquatic Receptors

                                      Baseline Ecological Risk Assessment for the Ogden Railyard Site
Analyte
Type
llorinated
yls (PCBs)
£j
o "a
^ a
Petroleum
Hydro-
carbons
Semi- Volatile Organic Compound (SVOCs)

Analyte
PCB-1016
PCB-1221
PCB-1232
PCB-1242
PCB-1248
PCB-1254
PCB-1260
Diesel fuel
Total Petroleum Hydrocarbons (TPH)
1 ,2,4-Tnchlorobenzene
1 ,2-Dichlorobenzene
1 ,3-Dichlorobenzene
1 ,4-Dichlorobenzene
1 -Methylnaphthalene
2,4,5-Tnchlorophenol
2,4,6- Trichlorophenol
2,4-Dichlorophenol
2,4-Dimethylphenol
2,4-Dimtrophenol
2,4-Dinitrotoluene
2,6-Dinitrotoluene
2-Chlorophenol
2-Methyl-4,6-dinitrophenol
2-Methylphenol
2-Nitroaniline
2-Nitrophenol
3,3-Dichlorobenzidine
3-Methyl-4-chlorophenol
4-Bromophenyl-phenyl ether
4-Chloroanilme
4-Chlorophenyl phenyl ether
4-Methylphenol
4-Nitrophenol
Benzyl alcohol
Bis(2-chloroethoxy) methane
Bis(2-chloroethyl)ether
Bis(2-ethylhexyl)phthalate (DEHP)
Bis-2-chloro-l -methylethyl ether
Butyl benzyl phthalate
Carbazole
Dibutyl phthalate
Diethyl phthalate
Dimethyl phthalate
Di-n-octylphthalate
Hexachlorobenzene
Hexachlorobutadiene
Hexachlorocyclopentadiene
Hexachloroethane
Isophorone
Nitroanilme [m-]
Nitroanilme [p-]
Nitrobenzene
Nitroso-di-n-propylamine [N-]
Nitrosodiphenylamme [N-]
Pentachlorophenol
Phenol
,1,1,2-Tetrachloroethane
,1,1-Tnchloroethane
,1 ,2,2-Tetrachloroethane
,1 ,2-Trichloroethane
,1 -Dichloroethane
,1 -Dichloroethene
,1 -Dichloropropene
,2,3-Trichlorobenzene
,2,3-Trichloropropane
,2,4- Trim ethylbenzene
,2-Dibromo-3-chloropropane
ACUTE
NAWQC -
Acute (mg/L) '
-
-

-
-


--
--


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-

0.019 5
-
-


-
-


-
-


GLWQI Tier
ESAV
(mg/L)2
-
0.005
0.01
0.0012
0.0014
0.0006
1.7
--
--
0.7
0.26
0.63
0.18


-
-


-
-


0.23
-


-
-


-
1.2
0.15

-
0.027


-
0.19
1.8

-
-


0.21
-


-
-
3.8

-
-
0.2
2.1
5.2
0.83
0.45

-
-


USEPA R4 -
Acute (mg/L)
0.0002
0.0002
0.0002
0.0002
0.0002
0.0002
0.0002
--
--
0.15
0.158
0.502
0.112


0.032
0.202
0.212
0.062
3.1
-
0.438
0.023
-
-


0.003
-


-
0.828


23.8
1.11

0.33
-
0.094
5.21
3.3
-
-
0.009
0.0007
0.098
11.7


2.7
-
0.585
0.02
1.02
-
5.28
0.932
3.6
-
3.03

-
-


Surface Water
Acute
Benchmark
rnip/r.i
2.0E-04
5.0E-03
l.OE-02
1.2E-03
1.4E-03
6.0E-04
1.7E+00
no benchmark
no benchmark
7.0E-01
2.6E-01
6.3E-01
1 .8E-01
no benchmark
no benchmark
3.2E-02
2.0E-01
2.1E-01
6.2E-02
3.1E+00
no benchmark
4.4E-01
2.3E-02
2.3E-01
no benchmark
no benchmark
no benchmark
3.0E-03
no benchmark
no benchmark
no benchmark
no benchmark
1 .2E+00
1 .5E-01
no benchmark
2.4E+01
2.7E-02
no benchmark
3.3E-01
no benchmark
1 .9E-01
1 .8E+00
3.3E+00
no benchmark
no benchmark
9.0E-03
7.0E-04
2.1E-01
1.2E+01
no benchmark
no benchmark
2.7E+00
no benchmark
3.8E+00
1 .9E-02
1 .OE+00
no benchmark
2.0E-01
2.1E+00
5.2E+00
8.3E-01
4.5E-01
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
CHRONIC
NAWQC -
Chronic (mg/L) l
-
-

-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-

0.015 5
-
-


-
-


-
-


GLWQI Tier
nscv
(mg/L)2
-
0.00028
0.00058
0.000053
0.000081
0.000033
0.094
--
--
0.11
0.014
0.071
0.015


-
-


-
-


0.013
-


-
0.0015


-
0.3
0.0086

-
0.003

0.019
-
0.035
0.21

-
-


0.012
-


-
-
0.21

-
-
0.011
0.61
1.2
0.047
0.025

-
-


USEPA R4 -
Chronic
(mg/L)2
0.000014
0.000014
0.000014
0.000014
0.000014
0.000014
0.000014
--
--
0.0449
0.0158
0.0502
0.0112


0.0032
0.0365
0.0212
0.0062
0.31
-
0.0438
0.0023
-
-
3.5

0.0003
-


-
0.0828


2.38
0.0003

0.022
-
0.0094
0.521
0.33
-
-
0.00093
0.00007
0.0098
1.17


0.27
-
0.0585
0.013
0.256
-
0.528
0.24
0.94
-
0.303

-
-


Other
(mg/Lf
-
-

-
-


--
--


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


0.1
-


-
-


-
-


-
-


-
-


0.008
-


Surface Water
Chronic
Benchmark
rniP/T.l
1.4E-05
2.8E-04
5.8E-04
5.3E-05
8.1E-05
3.3E-05
9.4E-02
no benchmark
no benchmark
1.1E-01
1 .4E-02
7.1E-02
1 .5E-02
no benchmark
no benchmark
3.2E-03
3.7E-02
2.1E-02
6.2E-03
3.1E-01
no benchmark
4.4E-02
2.3E-03
1 .3E-02
no benchmark
3.5E+00
no benchmark
3.0E-04
1 .5E-03
no benchmark
no benchmark
no benchmark
3.0E-01
8.6E-03
no benchmark
2.4E+00
3.0E-03
no benchmark
1 .9E-02
no benchmark
3.5E-02
2.1E-01
3.3E-01
1 .OE-01
no benchmark
9.3E-04
7.0E-05
1 .2E-02
1 .2E+00
no benchmark
no benchmark
2.7E-01
no benchmark
2.1E-01
1 .5E-02
2.6E-01
no benchmark
1.1E-02
6.1E-01
1 .2E+00
4.7E-02
2.5E-02
no benchmark
8.0E-03
no benchmark
no benchmark
no benchmark
SWBenchmarks.xls: SWBnchmrks
1/13/2003
                                                                                                                               Page 2 of 4

-------
                                                              Table C-la
                                        Surface Water Toxicity Benchmarks for Aquatic Receptors

                                      Baseline Ecological Rish Assessment for the Ogden Railyard Site
Analyte
Type
Volatile Organic Compounds (VOCs)
Analyte
1 ,2-Dibromoethane
1 ,2-Dichloroethane
1 ,2-Dichloroethene
1 ,2-Dichloropropane
1 ,3,5-Trimethylbenzene
1 ,3-Dichloropropane
1 ,4-Dioxane
2,2-Dichloropropane
2-Butanone
2-Chloroethylvmyl ether
2-Chlorotoluene
2-Hexanone
4-Chlorotoluene
4-Methyl-2-pentanone
Acetone
Acetonitrile
Acrolein
Acrylomtrile
Allyl chloride
Benzene
Benzene, Ethylmethyl
Bromobenzene
Bromodichlorom ethane
Bromoform
Carbon disulfide
Carbon tetrachlonde
Chlorobenzene
Chloroethane
Chloroform
Chloroprene
cis-1 ,2-Dichloroethene
cis-1 ,3-Dichloropropene
Dibromochloromethane
Dichlorodifluorom ethane
Ethyl methacrylate
Ethylbenzene
Hexane
Isobutanol
Methacrylomtrile
Methyl bromide
Methyl chloride
Methyl iodide
Methyl methacrylate
Methylene bromide
Methylene chloride
MTBE
n-Butylbenzene
n-Propylbenzene
sec-Butylbenzene
Styrene
tert-Butylbenzene
Tetrachloroethylene (PCE)
Toluene
trans-1 ,2-Dichloroethene
trans-1 ,3-Dichloropropene
trans-1 ,4-Dichloro-2-butene
Tnchloroethylene (TCE)
Tnchlorofluorom ethane
Vinyl acetate
Vinyl chloride
Xylene [o]
Xylene [p,m]
Xylene, Total
ACUTE
NAWQC -
Acute (mg/L) '
-
-

-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


GLWQI Tier
ESAV
(mg/L)2
-
8.8
1.1
-
-


-
240


1.8
-
2.2
28
-
-


2.3
-


2.3
0.017
0.18
1.1
-
0.49


-
-


0.13
0.01


-
-


-
26


-
-


0.83
0.12


-
0.44

0.28
-
0.23
0.032
0.23
USEPA R4 -
Acute (mg/L)
-
11.8
13.5
5.25
-


-
-
35.4

-
-


-
0.0068
0.755

0.53
-


2.93
-
3.52
1.95
-
2.89


-
-


4.53
-


1.1
55


-
19.3


-
-


0.528
1.75


-
-


-
-


Surface Water
Acute
Benchmark
rnip/r.i
no benchmark
8.8E+00
1.1E+00
5.3E+00
no benchmark
no benchmark
no benchmark
no benchmark
2.4E+02
3.5E+01
no benchmark
1 .8E+00
no benchmark
2.2E+00
2.8E+01
no benchmark
6.8E-03
7.6E-01
no benchmark
2.3E+00
no benchmark
no benchmark
no benchmark
2.3E+00
1 .7E-02
1 .8E-01
1.1E+00
no benchmark
4.9E-01
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
1 .3E-01
1 .OE-02
no benchmark
no benchmark
1.1E+00
5.5E+01
no benchmark
no benchmark
no benchmark
2.6E+01
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
8.3E-01
1 .2E-01
no benchmark
no benchmark
no benchmark
4.4E-01
no benchmark
2.8E-01
no benchmark
2.3E-01
3.2E-02
2.3E-01
CHRONIC
NAWQC -
Chronic (mg/L) :
-
-

-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


GLWQI Tier
nscv
(mg/L)2
-
0.91
0.59
-
-


-
14


0.099
-
0.17
1.5
-
-


0.13
-


0.32
0.00092
0.0098
0.064
-
0.028


-
-


0.0073
0.00058


-
-


-
2.2


-
-


0.098
0.0098


-
0.047

0.016
-
0.013
0.0018
0.013
USEPA R4 -
Chronic
(mg/L)2
-
2
1.35
0.525
-


-
-
3.54

-
-


-
0.0021
0.0755

0.053
-


0.293
-
0.352
0.195
-
0.289


-
-


0.453
-


0.11
5.5


-
1.93


-
-


0.084
0.175


-
-


-
-


Other
(mg/Lf
-
-

-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-
0.072

-
-


-
-


-
-


Surface Water
Chronic
Benchmark
rniP/T.l
no benchmark
9.1E-01
5.9E-01
5.3E-01
no benchmark
no benchmark
no benchmark
no benchmark
1 .4E+01
3.5E+00
no benchmark
9.9E-02
no benchmark
1.7E-01
1 .5E+00
no benchmark
2.1E-03
7.6E-02
no benchmark
1 .3E-01
no benchmark
no benchmark
no benchmark
3.2E-01
9.2E-04
9.8E-03
6.4E-02
no benchmark
2.8E-02
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
7.3E-03
5.8E-04
no benchmark
no benchmark
1.1E-01
5.5E+00
no benchmark
no benchmark
no benchmark
2.2E+00
no benchmark
no benchmark
no benchmark
no benchmark
7.2E-02
no benchmark
9.8E-02
9.8E-03
no benchmark
no benchmark
no benchmark
4.7E-02
no benchmark
1 .6E-02
no benchmark
1 .3E-02
1 .8E-03
1 .3E-02
SWBenchmarks.xls: SWBnchmrks
1/13/2003
                                                                                                                               Page 3 of 4

-------
                                                                             Table C-la
                                                  Surface Water Toxicity Benchmarks for Aquatic Receptors

                                               Baseline Ecological Rish Assessment for the Ogden Railyard Site
Analyte
Type
Analyte
ACUTE
NAWQC -
Acute (mg/L) '
GLWQI Tier
ESAV
(mg/L)2
USEPA R4 -
Acute (mg/L)
Surface Water
Acute
Benchmark
rnip/r.i
CHRONIC
NAWQC -
Chronic (mg/L) :
GLWQI Tier
nscv
(mg/L)2
USEPA R4 -
Chronic
(mg/L)2
Other
(mg/Lf
Surface Water
Chronic
Benchmark
rniP/T.l
1 Source:
USEPA, 2001. 2001 Update of Ambient Water Quality Criteria for Cadmium. April 2001. EPA 822-R-01-001
USEPA, 1999. National Recommended Water Quality Criteria--Correction. April 1999. EPA 822-Z-99-001
Spatial Analysis and Decision Assistance (SADA) Database version 2.3 - Table "Ecological SW Benchmarks"
3 Only acute NAWQC available; chronic NAWQC is equal to acute / 10.
4 Metal toxicity is hardness-dependent; values shown are calculated based on an average site hardness of 200 mg/L.
5 PCP toxicity is pH-dependent; value shown is calculated based on a pH of 7.8.
NAWQC = National Ambient Water Quality Criteria
GLQWI = Great Lakes Water Quality Initiative
SAV/SCV = Secondary Acute/Chronic Value
CCME = Canadian Council of Ministers of the Environment
WQG = Water Quality Guidelines
LCV = Lowest Chronic Value
EC20 = Effect Concentration Causing Less Than 20% Reduction
  SWBenchmarks.xls: SWBnchmrks
  1/13/2003
                                                                                                                                                          Page 4 of 4

-------
                                                                 Table C-lb
                                         Surface Water Toxicity Benchmarks for Aquatic Receptors:
                                  Ambient Water Quality Criteria for Metals that are Hardness-Dependent
                                       Baseline Ecological Risk Assessment for the Ogden RailyardSite
Analyte
Cadmium
Chromium III
Copper
Lead
Nickel
Silver
Zinc
Hardness-Dependent Parameters
where: AWQC=exp(a * InfHardness) + b)
Acute
a
1.0166
0.819
0.9422
1.273
0.846
1.72
0.8473
b
-3.924
3.7256
-1.7
-1.46
2.255
-6.52
0.884
Chronic
a
0.7409
0.8190
0.8545
1.2730
0.8460
-
0.8473
b
-4.7190
0.6848
-1.7020
-4.7050
0.0584
-
0.8840
Range of Hardness Data Used in AWQC
Derivation (mg/L CaCO3)
Acute
Lower
5
10
10
20
10
10
10
Upper
360
360
400
360
360
400
500
Chronic
Lower
20
20
20
30
20
-
20
Upper
280
206
210
150
210
-
210
Ambient Water Quality
Criteria (ug/L)
Acute
4.3E+00
3.2E+03
2.7E+01
2.0E+02
8.4E+02
1.3E+01
2.2E+02
Chronic
4.5E-01
1.5E+02
1.7E+01
7.7E+00
9.4E+01
1.3E+00
2.2E+02
Source
1
2
2
2
2
2
2
Notes





a

— = not available
AWQCs are presented based on an average hardness of approximately 200 mg/L in surface water.
AWQCs are presented based on total recoverable metals.
  1 USEPA, 2001.  2001 Update of Ambient Water Quality Criteria for Cadmium. April 2001. EPA 822-R-01-001
  2 USEPA, 1999.  National Recommended Water Quality Criteria - Correction. April 1999. EPA 822-Z-99-001

Notes:
  a Silver chronic AWQC is not available; AWQC is equal to the acute criterion / 10
SW Benchmarks.xls
1/13/2003

-------
This page intentionally left blank to facilitate double-sided printing.

-------
                                                   Table C-2a
              Summary of Estimated Sediment Benchmarks Using the Equilibrium Partitioning Approach

                           Baseline Ecological Risk Assessment for the Ogden Railyard Site
Analyte
1,1,1 ,2-Tetrachloroethane
1 , 1 ,1 -Trichloroethane
1 , 1 ,2 ,2-Tetrachloroethane
1 , 1 ,2-Trichloroethane
1 , 1 -Dichloroethane
1 , 1 -Dichloroethene
1,2,3-Trichlorobenzene
1,2,3-Trichloropropane
1 ,2,4-Trichlorobenzene
1 ,2-Dibromo-3-chloropropane (DBCP)
1 ,2-Dichlorobenzene
1 ,2-Dichloroethane
1 ,2-Dichloroethene
1 ,2-Dichloropropane
1 ,3-Dichlorobenzene
1 ,4-Dichlorobenzene
1,4-Dioxane
2,2'-oxybi s( 1 -Chloropropane)
2,4,5-Trichlorophenol
2,4,6-Trichlorophenol
2,4-Dichlorophenol
2,4-Dimethylphenol
2,4-Dinitrophenol
2,4-Dinitrotoluene
2,6-Dinitrotoluene
2-Chloro- 1 ,3-butadiene (Chloroprene)
2-Chloroethyl vinyl ether
2-Chloronaphthalene
2-Chlorophenol
2-Hexanone
2-Methylphenol (o-Cresol)
2-Nitroaniline
2-Nitrophenol
3,3'-Dichlorobenzidine
3-Chloropropene (Allyl Chloride)
3-Nitroaniline
4,6-Dinitro-o-cresol
4-Bromophenyl-phenylether
4-Chloro-3-Methylphenol
4-Chloroaniline
4-Chlorophenyl-phenylether
4-Methylphenol (p-Cresol)
4-Nitroaniline
4-Nitrophenol
Acetone
Acetonitrile
Acetophenone
Acrolein
Acrylonitrile
Aldrin
alpha-BHC
Aniline
Benzene
Benzyl alcohol
CAS
630206
71556
79345
79005
75343
75354
87616
96184
120821
96128
95501
107062
540590
78875
541731
106467
123911
108601
95954
88062
120832
105679
51285
121142
606202
126998
110758
91587
95578
591786
95487
88744
88755
91941
107051
99092
534521
101553
59507
106478
7005723
106445
100016
100027
67641
75058
98862
107028
107131
309002
319846
62533
71432
100516
Cwater1 (mg/L)
no benchmark
0.011
0.61
1.2
0.047
0.025
0.008
no benchmark
0.11
no benchmark
0.014
0.91
0.59
0.525
0.071
0.015
no benchmark
no benchmark
no benchmark
0.0032
0.0365
0.0212
0.0062
0.31
no benchmark
no benchmark
3.54
no benchmark
0.0438
0.099
0.013
no benchmark
3.5
no benchmark
no benchmark
no benchmark
0.0023
0.0015
0.0003
no benchmark
no benchmark
no benchmark
no benchmark
0.3
1.5
no benchmark
no benchmark
0.0021
0.0755
0.0003
0.5
0.0022
0.13
0.0086
pKa2
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
5.99
7.6
10.61
4.09
--
--
--
--
--
8.56
--
10.28
--
7.23
--
--
--
4.31
--
--
--
--
--
--
7.08
20
--
--
--
--
-
--
4.6
--
15.4
Environ, form
at pH 6-8
-
NONIONIC
NONIONIC
NONIONIC
NONIONIC
NONIONIC
NONIONIC
-
NONIONIC
-
NONIONIC
NONIONIC
NONIONIC
NONIONIC
NONIONIC
NONIONIC
-
-
-
IONIC
IONIC
NONIONIC
IONIC
NONIONIC
-
-
NONIONIC
-
NONIONIC
NONIONIC
NONIONIC
-
IONIC
-
-
-
IONIC
NONIONIC
NONIONIC
-
-
-
-
IONIC
NONIONIC
-
-
NONIONIC
NONIONIC
NONIONIC
NONIONIC
NONIONIC
NONIONIC
NONIONIC
logKow3
--
2.49
2.39
2.05
1.79
2.13
4.05
--
3.98
--
3.38
1.48
1.86
2
3.6
3.52
--
--
--
3.69
2.92
2.3
1.54
1.98
--
--
--
--
2.15
1.38
1.95
--
1.79
--
--
--
2.12
5.243
-
--
--
--
--
1.91
-0.24
-
-
-0.01
0.25
5.52
3.8
0.9
2.13
1.1
Koc4
-
1.79E+02
7.90E+01
7.90E+01
4.00E+01
3.43E+02
4030
-
1.43E+03
-
2.80E+02
3.20E+01
35
2.70E+01
2.93E+02
6.00E+02
-
-
-
6.20E+02
1.26E+02
1.80E+01
(ion)
9.00E+01
-
-
8.106
-
5.12E+01
13.02
1.03E+02
-
1.14E+02
-
-
-
2.57E+02
1.70E+04
717.6
-
-
-
-
2.36E+02
1.80E+01
-
-
5.00E+00
9.00E+00
4.85E+04
2.00E+03
5.40E+01
4.90E+01
5.00E+00
Csed5 (mg/kg)
NB
5.91E-03
1.45E-01
2.84E-01
5.64E-03
2.57E-02
9.67E-02
NB
4.72E-01
NB
1.18E-02
8.74E-02
6.20E-02
4.25E-02
6.24E-02
2.70E-02
NB
NB
NB
NC
NC
1.14E-03
NC
8.37E-02
NB
NB
8.61E-02
NB
6.72E-03
0.00386694
4.02E-03
NB
NC
NB
NB
NB
NC
7.65E-02
0.00064584
NB
NB
NB
NB
NC
8.10E-02
NB
NB
3.15E-05
2.04E-03
4.37E-02
2.99E+00
3.56E-04
1.91E-02
1.29E-04
Sed EqP Recalc.xls: EqP Sed Benchmarks
1/13/2003
Page 1 of3

-------
                                                   Table C-2a
              Summary of Estimated Sediment Benchmarks Using the Equilibrium Partitioning Approach

                           Baseline Ecological Risk Assessment for the Ogden Railyard Site
Analyte
beta-BHC
Biphenyl
bi s(2-Chloroethoxy )methane
bis-(2-Chloroethyl)ether
bis(2-Chloroisopropyl)ether
bi s(2-Ethylhexy Ophthalate
bi s(n-octyl)phthalate
Bromodichloromethane
Bromoform
Bromomethane (Methyl bromide)
Butyl benzyl phthal ate
Carbon Bisulfide
Carbon Tetrachloride
Chlorobenzene
Chlorodibromomethane
Chloroethane (Ethyl chloride)
Chloroform
Chloromethane (Methyl chloride)
ci s- 1 ,3-Dichloropropene
delta-BHC
Dibenzofuran
Dibromomethane
Dibutylphthalate
Dichlorodifluoromethane
Dichloromethane
Diethylphthalate
Dimethylphthalate
Endosulfan I
Endosulfan II
Endosulfan Sulfate
Endrin Aldehyde
Ethyl Methacrylate
Ethyl benzene
Ethylene dibromide (EDB)
Heptachlor
Hexachlorobenzene
Hexachlorobutadiene
Hexachlorocyclopentadiene
Hexachloroethane
Hexane
lodomethane
Isobutyl Alcohol
Isodrin
Isophorone
Kepone
Methacrylonitrile
Methoxychlor
Methyl ethyl ketone (MEK)
Methyl isobutyl ketone (MTBK)
Methyl Metharcylate
Nitrobenzene
N-Nitrosodiphenylamine
n-Nitrosodipropylamine
Pentachlorophenol (PCP)
CAS
319857
92524
111911
111444
108601
117817
117840
75274
75252
74839
85687
75150
56235
108907
124481
75003
67663
74873
10061015
319868
132649
74953
84742
75718
75092
84662
131113
959988
33213659
1031078
7421934
97632
100414
106934
76448
118741
87683
77474
67721
110543
74884
78831
465736
78591
143500
126987
72435
78933
108101
80626
98953
86306
621647
87865
Cwater1 (mg/L)
5
0.014
no benchmark
200
.38
no benchmark
0.003
0.1
no benchmark
0.32
0.11
0.019
0.00092
0.0098
0.064
no benchmark
no benchmark
0.028
5.5
no benchmark
no benchmark
0.0037
no benchmark
0.035
no benchmark
2.2
0.21
0.33
0.000056
0.000056
no benchmark
no benchmark
no benchmark
0.0073
no benchmark
0.0000038
no benchmark
0.00093
0.00007
0.012
0.00058
no benchmark
no benchmark
no benchmark
1.17
no benchmark
no benchmark
0.00003
14
0.17
no benchmark
0.27
0.21
no benchmark
0.015
pKa2
—
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
-
--
--
--
-
--
--
--
14.7
--
--
--
--
--
4.7
Environ, form
at pH 6-8
NONIONIC
NONIONIC
-
NONIONIC
-
NONIONIC
NONIONIC
-
NONIONIC
NONIONIC
NONIONIC
NONIONIC
NONIONIC
NONIONIC
-
-
NONIONIC
NONIONIC
-
-
NONIONIC
-
NONIONIC
-
NONIONIC
NONIONIC
NONIONIC
NONIONIC
NONIONIC
-
-
-
NONIONIC
-
NONIONIC
-
NONIONIC
NONIONIC
NONIONIC
NONIONIC
-
-
-
NONIONIC
-
-
NONIONIC
NONIONIC
NONIONIC
-
NONIONIC
NONIONIC
-
IONIC
logKow3
3.78
4.09
--
1.29
--
5.11
5.22
--
2.37
1.19
4.91
2.24
2.83
2.84
--
--
1.97
0.91
--
--
4.12
--
4.72
--
1.25
2.47
1.56
3.83
3.83
--
--
--
3.15
--
4.27
--
4.78
5.04
3.93
-
--
--
--
1.67
--
--
4.83
0.29
1.19
--
1.85
3.13
--
5.12
Koc4
4.25E+03
1400
-
7.90E+01
-
5.80E+03
2.39E+03
-
2.82E+02
9.80E+00
1.70E+04
8.90E+01
2.24E+02
2.09E+02
-
-
4.00E+01
7.40E+01
-
-
8.13E+03
-
6.31E+03
-
2.80E+01
9.80E+01
4.00E+01
6.32E+03
6.77E+03
-
-
-
2.50E+02
-
3.48E+03
-
2.30E+03
2.00E+03
2.19E+03
149
-
-
-
2.50E+01
-
-
8.00E+04
5.20E+00
1.90E+01
-
2.29E+02
1.20E+03
-
3.80E+03
Csed5 (mg/kg)
6.38E+01
5.88E-02
NB
5.64E-01
NB
5.22E-02
7.16E-01
NB
2.71E-01
3.23E-03
9.69E-01
2.46E-04
6.59E-03
4.01E-02
NB
NB
3.36E-03
1.22E+00
NB
NB
9.02E-02
NB
6.63E-01
NB
1.85E-01
6.17E-02
3.96E-02
1.06E-03
1.14E-03
NB
NB
NB
5.48E-03
NB
3.96E-05
NB
6.42E-03
4.20E-04
7.88E-02
2.59E-04
NB
NB
NB
8.78E-02
NB
NB
7.20E-03
2.18E-01
9.69E-03
NB
1.85E-01
7.56E-01
NB
NC
Sed EqP Recalc.xls: EqP Sed Benchmarks
1/13/2003
Page 2 of3

-------
                                                       Table C-2a
               Summary of Estimated Sediment Benchmarks Using the Equilibrium Partitioning Approach

                              Baseline Ecological Risk Assessment for the Ogden Railyard Site
Analyte
Phenol
Styrene
Tetrachloroethene
Toluene
Toxaphene
trans- 1 ,2-Dichloroethene
trans- 1 ,3-Dichloropropene
trans- 1 ,4-Dichloro-2-Butene
Trichloroethene
Trichlorofluoromethane
Vinyl Acetate
Vinyl Chloride
Xylenes (Total)
Xylenes-o
Xylenes-p,m
CAS
108952
100425
127184
108883
8001352
156605
10061026
110576
79016
75694
108054
75014
1330207
95476
179601231
Cwater1 (mg/L)
0.256
0.072
0.098
0.0098
0.0000002
no benchmark
no benchmark
no benchmark
0.047
no benchmark
0.016
no benchmark
0.013
0.013
0.0018
pKa2
9.994
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Environ, form
at pH 6-8
NONIONIC
NONIONIC
NONIONIC
NONIONIC
NONIONIC
-
-
-
NONIONIC
-
NONIONIC
-
NONIONIC
NONIONIC
NONIONIC
logKow3
1.46
2.95
3.4
2.73
4.82
-
-
-
2.42
-
0.73
-
3.12
3.12
3.15
Koc4
3.02E+01
9.20E+02
3.63E+02
9.50E+01
2.10E+05
-
-
-
1.04E+02
-
1.90E+01
-
1.29E+02
1.29E+02
2.60E+02
Csed5 (mg/kg)
2.32E-02
1.99E-01
1.07E-01
2.79E-03
1.26E-04
NB
NB
NB
1.47E-02
NB
9.12E-04
NB
5.03E-03
5.03E-03
1.40E-03
NB = No surface water benchmark; sediment benchmark not calculated
NC = Not calculated
(ion.) = Koc not calculated due to ionization
Koc values in boldface type were estimated using Pckocwin vl.66 EPI Suite estimation software.

AllpKa, Kow, and Koc values are the SRC recommended values in CHEMFATE database (http://esc.syrres.com/efdb/Chemfate.htm)
1 Cwater based on selected surface water chronic benchmark (Table C-la).
2 PKA-Log Acid Dissociation Constant
3 LOGP-Log Octanol/Water Part. Coeff
4 SOIA-Soil Adsorption Constant
5 Csed estimated based on Equilibrium Partitioning Approach:
    Csed = Cwater * Koc * 0.003  [asjusted to a TOC of 0.3%, the 5th percentile of all site TOC measurements]
Sed EqP Recalc.xls: EqP Sed Benchmarks
1/13/2003
Page 3 of3

-------
This page intentionally left blank to facilitate double-sided printing.

-------
                                                                   Table C-2b
                                          Sediment Toxicity Benchmarks for Benthic Macroinvertebrates
                                          Baseline Ecological Risk Assessment for the Ogden Railyard Site
Analyte
Type
Inorganics
Pesticides
Polyaromatic Hydrocarbons (PAHs)
Polychlorinated
Biphenyls (PCBs)
Analyte Name
Aluminum
Antimony
Arsenic
Barium
Beryllium
Cadmium
Calcium
Chromium
Cobalt
Copper
Iron
Lead
Magnesium
Manganese
Mercury
Nickel
Potassium
Selenium
Silver
Sodium
Thallium
Vanadium
Zinc
4,4'-DDD
4,4'-DDE
4,4'-DDT
Aldrin
alpha-BHC
alpha-Chlordane
Atrazine
beta-BHC
Caprolactam
Chlordane
delta-BHC
Dieldrin
Endosulfan I
Endosulfan II
Endosulfan Sulfate
Endrin
Endrin Aldehyde
Endrin ketone
gamma-BHC (Lindane)
gamma-Chlordane
Heptachlor
Heptachlor Epoxide
Isodrin
Kepone
Methoxychlor
Toxaphene
1 -Methylnaphthalene
2-Chloronaphthalene
2-Methylnaphthalene
Acenaphthene
Acenaphthylene
Aniline
Anthracene
Benzo[a]anthracene
Benzo[a]pyrene
Benzo [b] fluoranthene
Benzo [g,h,i]perylene
Benzo [k] fluoranthene
Chrysene
Dibenz[a,h]anthracene
Dibenzofuran
Fluoranthene
Fluorene
Indeno[l,2,3-c,d]pyrene
Naphthalene
Phenanthrene
Pyrene
Aroclor-1016
Aroclor-1221
Aroclor-1232
Aroclor-1242
Aroclor-1248
Aroclor-1254
Aroclor-1260
Aroclor-1268
CAS#
7429-90-5
7440-36-0
7440-38-2
7440-39-3
7440-41-7
7440-43-9
7440-70-2
7440-47-3
7440-48-4
7440-50-8
7439-89-6
7439-92-1
7439-95-4
7439-96-5
7439-97-6
7440-02-0
7440-09-7
7782-49-2
7440-22-4
7440-23-5
7440-28-0
7440-62-2
7440-66-6
72-54-8
72-55-9
50-29-3
309-00-2
319-84-6
5103-71-9
1912-24-9
319-85-7
105-60-2
57-74-9
319-86-8
60-57-1
959-98-8
33213-65-9
1031-07-8
72-20-8
7421-93-4
53494-70-5
58-89-9
12789-03-6
76-44-8
1024-57-3
465-73-6
143-50-0
72-43-5
8001-35-2
90-12-0
91-58-7
91-57-6
83-32-9
208-96-8
62-53-3
120-12-7
56-55-3
50-32-8
205-99-2
191-24-2
207-08-9
218-01-9
53-70-3
132-64-9
206-44-0
86-73-7
193-39-5
91-20-3
85-01-8
129-00-0
12674-11-2
11104-28-2
11141-16-5
53469-21-9
12672-29-6
11097-69-1
11096-82-5
11100-14-4
Consensus-
Based TEC
(mg/kg)"

-
9.8

-
0.99

43
-
32

36
-
-
0.18
23

-
-


-
121
0.005
0.003
0.004
-


-
-

0.003
-
0.002


-
0.002


0.002
-

0.002
-
-


-
-


-
-
0.06
0.11
0.15
-


0.17
0.03

0.42
0.08
-
0.18
0.20
0.20
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
ARCS TEL
(mg/kg) "
25,519
-
12

-
0.59

56
-
28

34
-
1,670

40

-
-


-
159


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-
0.03
0.26
0.35
0.03
0.29
0.03
0.50
-

0.06
0.03
0.08
0.03

0.57
-


-
-


-
EqP Value
(mg/kg) c

-


-
-


-
-


-
-



-
-


-
-


-
0.044
2.99

-
63.81


-
-
0.0011
0.0011
-
-


-
-
0.00004

-
-
0.007
0.0001
-
-


-
0.00036


-
-


-
-
0.09

-
-


-
-


-
-


-
ESGs for
PAHs
(mg/kg) '

-


-
-


-
-


-
-



-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


1.34
-
1.34
1.36
1.47
-
1.78
2.52
2.90
2.94
1.94
2.94
2.48
3.37

2.12
1.61
3.35
1.16
1.79
2.09
-


-
-


-
Other (mg/kg)

2.0

48,000
-
-


-
-
20,000

-
-



1.0
1.0


57
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-

NOAA ERL d

Region 6 SQG e






Region 6 SQG e






Region 6 SQG e
NOAA ERL d


Region 6 SQG e
























































Sediment
Screening
Benchmark
("nip/lip")
2.6E+04
2.0E+00
9.8E+00
4.8E+04
no benchmark
9.9E-01
no benchmark
4.3E+01
no benchmark
3.2E+01
2.0E+04
3.6E+01
no benchmark
1.7E+03
1.8E-01
2.3E+01
no benchmark
l.OE+00
l.OE+00
no benchmark
no benchmark
5.7E+01
1.2E+02
4.9E-03
3.2E-03
4.2E-03
4.4E-02
3.0E+00
no benchmark
no benchmark
6.4E+01
no benchmark
3.2E-03
no benchmark
1.9E-03
1.1E-03
1.1E-03
no benchmark
2.2E-03
no benchmark
no benchmark
2.4E-03
no benchmark
4.0E-05
2.5E-03
no benchmark
no benchmark
7.2E-03
1.3E-04
1.3E+00
no benchmark
1.3E+00
1.4E+00
1.5E+00
3.6E-04
5.7E-02
1.1E-01
1.5E-01
2.9E+00
1.9E+00
2.9E+00
1.7E-01
3.3E-02
9.0E-02
4.2E-01
7.7E-02
3.3E+00
1.8E-01
2.0E-01
2.0E-01
6.0E-02
6.0E-02
6.0E-02
6.0E-02
6.0E-02
6.0E-02
6.0E-02
6.0E-02
Notes














































































Sediment Benchmarks.xls: Sed TRVs_Aquatic
1/13/2003
                                                                                                                                        Pagel of 3

-------
                                                                   Table C-2b
                                          Sediment Toxicity Benchmarks for Benthic Macroinvertebrates
                                          Baseline Ecological Risk Assessment for the Ogden Railyard Site
Analyte
Type
Petroleum
Hydro-
carbons
Semi- Volatile Organic Compounds (SVOCs)

Analyte Name
Total Petroleum Hydrocarbons (TPH)
l,l'-Biphenyl
1 ,2,4-Trichlorobenzene
1 ,2-Dichlorobenzene
1,3-Dichlorobenzene
1 ,4-Dichlorobenzene
2,2'-oxybis(l-Chloropropane)
2,4,5-Trichlorophenol
2,4,6-Trichlorophenol
2,4-Dichlorophenol
2,4-Dimethylphenol
2,4-Dinitrophenol
2,4-Dinitrotoluene
2,6-Dinitrotoluene
2-Chlorophenol
2-Methylphenol (o-Cresol)
2-Nitroaniline
2-Nitrophenol
3,3'-Dichlorobenzidine
3-Nitroaniline
4,6-Dinitro-o-cresol
4-Bromophenyl-phenylether
4-Chloro-3-Methylphenol
4-Chloroaniline
4-Chlorophenyl-phenylether
4-Methylphenol (p-Cresol)
4-Nitroaniline
4-Nitrophenol
Acetophenone
Benzaldehyde
Benzyl alcohol
Biphenyl
bis(2-Chloroethoxy)methane
bis-(2-Chloroethyl)ether
bis(2-Chloroethyl)ether
bis(2-Chloroisopropyl)ether
bis(2-Ethylhexyl)phthalate
bis(n-octyl)phthalate
Butylbenzylphthalate
Carbazole
Mbutylphthalate
Diethylphthalate
Dimethylphthalate
Hexachlorobenzene
Hexachlorobutadiene
Hexachlorocyclopentadiene
Hexachloroethane
Isophorone
Nitrobenzene
N-Nitrosodiphenylamine
n-Nitrosodipropylamine
Pentachlorophenol (PCP)
Phenol
1,1,1 ,2-Tetrachloroethane
1 , 1 , 1 -Trichloroethane
1 , 1 ,2,2-Tetrachloroethane
1,1,2-Trichloroethane
1 , 1 -Dichloroethane
1 , 1 -Dichloroethene
1 , 1 -Dichloropropene
1,2,3-Trichlorobenzene
1,2,3-Trichloropropane
1 ,2,4-Trimethylbenzene
l,2-Dibromo-3-chloropropane (DBCP)
1 ,2-Dichloroethane
1 ,2-Dichloroethene
1 ,2-Dichloropropane
1,3,5-Trimethylbenzene
1,3-Dichloropropane
1,4-Dioxane
2,2-Dichloropropane
2-Chloro-l,3-butadiene (Chloroprene)
2-Chloroethyl vinyl ether
2-Chlorotoluene
2-Hexanone
3-Chloropropene (Allyl Chloride)
4-Chlorotoluene
Acetone
CAS#
TPH
92-52-4
120-82-1
95-50-1
541-73-1
106-46-7
108-60-1
95-95-4
88-06-2
120-83-2
105-67-9
51-28-5
121-14-2
606-20-2
95-57-8
95-48-7
88-74-4
88-75-5
91-94-1
99-09-2
534-52-1
101-55-3
59-50-7
106-47-8
7005-72-3
106-44-5
100-01-6
100-02-7
98-86-2
100-52-7
100-51-6
92-52-4
111-91-1
111-44-4
111-44-4
108-60-1
117-81-7
117-84-0
85-68-7
86-74-8
84-74-2
84-66-2
131-11-3
118-74-1
87-68-3
77-47-4
67-72-1
78-59-1
98-95-3
86-30-6
621-64-7
87-86-5
108-95-2
630-20-6
71-55-6
79-34-5
79-00-5
75-34-3
75-35-4
563-58-6
87-61-6
96-18-4
95-63-6
96-12-8
107-06-2
540-59-0
78-87-5
108-67-8
142-28-9
123-91-1
594-20-7
126-99-8
110-75-8
95-49-8
591-78-6
107-05-1
106-43-4
67-64-1
Consensus-
Based TEC
(mg/kg)"
-


-
-


-
-



-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-
ARCS TEL
(mg/kg) "
-


-
-


-
-



-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-
EqP Value
(mg/kg) c
-
0.06
0.47
0.01
0.06
0.03

-
-

0.001

0.08
-
0.01
0.004
-
-


-
0.08
0.001

-
-


-
-
0.0001
0.06
-
0.56
0.56

0.05
0.72
0.97

0.66
0.06
0.04

0.01
0.0004
0.08
0.09
0.19
0.76


0.02
-
0.01
0.14
0.28
0.006
0.03

0.10
-


0.09
0.06
0.04

-
-


0.09
-
0.00

-
0.08
ESGs for
PAHs
(mg/kg) '
-


-
-


-
-



-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-
Other (mg/kg)
-


-
-


-
-



-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-














































































Sediment
Screening
Benchmark
("nip/lip")
no benchmark
5.9E-02
4.7E-01
1.2E-02
6.2E-02
2.7E-02
no benchmark
no benchmark
no benchmark
no benchmark
1.1E-03
no benchmark
8.4E-02
no benchmark
6.7E-03
4.0E-03
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
7.7E-02
6.5E-04
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
1.3E-04
5.9E-02
no benchmark
5.6E-01
5.6E-01
no benchmark
5.2E-02
7.2E-01
9.7E-01
no benchmark
6.6E-01
6.2E-02
4.0E-02
no benchmark
6.4E-03
4.2E-04
7.9E-02
8.8E-02
1.9E-01
7.6E-01
no benchmark
no benchmark
2.3E-02
no benchmark
5.9E-03
1.4E-01
2.8E-01
5.6E-03
2.6E-02
no benchmark
9.7E-02
no benchmark
no benchmark
no benchmark
8.7E-02
6.2E-02
4.3E-02
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
8.6E-02
no benchmark
3.9E-03
no benchmark
no benchmark
8.1E-02
Notes














































































Sediment Benchmarks.xls: Sed TRVs_Aquatic
1/13/2003
                                                                                                                                         Page 2 of 3

-------
                                                                              Table C-2b
                                                 Sediment Toxicity Benchmarks for Benthic Macroinvertebrates

                                                 Baseline Ecological Risk Assessment for the Ogden Railyard Site
Analyte
Type
Volatile Organic Compounds (VOCs)
Analyte Name
Acetonitrile
Acrolein
Aciylonitrile
Benzene
Bromobenzene
Bromodichloromethane
Bromoform
Bromomethane (Methyl bromide)
Carbon Disulfide
Carbon Tetrachloride
Chlorobenzene
Chlorodibromomethane
Chloroethane (Ethyl chloride)
Chloroform
Chloromethane (Methyl chloride)
cis- 1 ,2-Dichloroethene
cis- 1 ,3-Dichloropropene
Dibromomethane
Dichlorodifluoromethane
Dichloromethane
Ethyl Methacrylate
Ethylbenzene
Ethylene dibromide (EDB)
Hexane
lodomethane
Isobutyl Alcohol
Isopropylbenzene
Methacrylonitrile
Methyl ethyl ketone (MEK)
Methyl isobutyl ketone (MIBK)
Methyl Metharcylate
Methyl-t-butyl ether (MTBE)
n-Butylbenzene
n-Propylbenzene
o-Xylene
sec-Butylbenzene
Styrene
tert-Butylbenzene
Tetrachloroethene
Toluene
trans- 1 ,2-Dichloroethene
trans- 1 ,3-Dichloropropene
trans- 1 ,4-Dichloro-2-Butene
Trichloroethene
Trichlorofiuoromethane
Vinyl Acetate
Vinyl Chloride
Xylenes (Total)
Xylenes-p,m
CAS#
75-05-8
107-02-8
107-13-1
71-43-2
108-86-1
75-27-4
75-25-2
74-83-9
75-15-0
56-23-5
108-90-7
124-48-1
75-00-3
67-66-3
74-87-3
156-59-2
10061-01-5
74-95-3
75-71-8
75-09-2
97-63-2
100-41-4
106-93-4
110-54-3
74-88-4
78-83-1
98-82-8
126-98-7
78-93-3
108-10-1
80-62-6
1634-04-4
104-51-8
103-65-1
95-47-6
135-98-8
100-42-5
98-06-6
127-18-4
108-88-3
156-60-5
10061-02-6
110-57-6
79-01-6
75-69-4
108-05-4
75-01-4
1330-20-7
179601-23-1
Consensus-
Based TEC
(mg/kg)"

-
-


-
-


-
-



-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-

ARCS TEL
(mg/kg) "

-
-


-
-


-
-



-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-

EqP Value
(mg/kg) c

0.0000
0.0020
0.02

-
0.27
0.003
0.000
0.01
0.04


0.00
1.22
-


-
0.18

0.005
-
0.00


-
-
0.22
0.01
-
-


0.01
-
0.20

0.11
0.00


-
0.01

0.001
-
0.01
0.001
ESGs for
PAHs
(mg/kg) '

-
-


-
-


-
-



-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-

Other (mg/kg)

-
-


-
-


-
-



-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


-
-


















































Sediment
Screening
Benchmark
("nip/lip")
no benchmark
3.2E-05
2.0E-03
1.9E-02
no benchmark
no benchmark
2.7E-01
3.2E-03
2.5E-04
6.6E-03
4.0E-02
no benchmark
no benchmark
3.4E-03
1.2E+00
no benchmark
no benchmark
no benchmark
no benchmark
1.8E-01
no benchmark
5.5E-03
no benchmark
2.6E-04
no benchmark
no benchmark
no benchmark
no benchmark
2.2E-01
9.7E-03
no benchmark
no benchmark
no benchmark
no benchmark
5.0E-03
no benchmark
2.0E-01
no benchmark
1.1E-01
2.8E-03
no benchmark
no benchmark
no benchmark
1.5E-02
no benchmark
9.1E-04
no benchmark
5.0E-03
1.4E-03
Notes


































2













2
       Sources Hierarchy:
       a MacDonald et al. (2000); consensus-based threshold effect concentration (TEC).
       b Ingersoll, et al. (1996); minimum No Effect Range Median (NERM) for total extraction of sediment (BT) samples from Hyalella azteca 28-day (HA28) tests and Chironomus
       riparius 14-day (CR14) tests.
       c Derived based on the equilibrium partitioning (EqP) approach as described in Region 5 ESL Guidance (USEPA, 1999) normalized to 0.3% TOC (5th percentile of all site
       TOC measurements).
       d Long and Morgan (1990); NOAA effect range level (ERL).
       e Spatial Analysis and Decision Assistance (SADA) database; Region 6 value for marine environments.

       f USEPA (2000); Equilibrium-partitioning sediment guidelines (ESGs) C oc PAHl FCVl normalized to 0.3% TOC (5th percentile of all site TOC measurements).


         Notes:
       1 Equal to the SQG for total PCBs.
       2 Equal to the EDQL for total xylene.
Sediment Benchmarks.xls: Sed TRVs_Aquatic
1/13/2003
                                                                                                                                                              Page 3 of 3

-------
This page intentionally left blank to facilitate double-sided printing.

-------
                                             Table C-3
                          Benthic Macroinvertebrate Toxicity Benchmarks
                                  for PAHs in Sediment Porewater

                      Baseline Ecological Risk Assessment for the Ogden Rally ard
Chemical
Class
C/3
ffi
2
Chemical Name
2-Methylnaphthalene
Acenaphthene
Acenaphthylene
Anthracene
Benzo[a]anthracene
Benzo[a]pyrene
Benzo [b] fluoranthene
Benzo [g,h,i]perylene
Benzo [k] fluoranthene
Chrysene
Dibenz[a,h]anthracene
Fluoranthene
Fluorene
Indeno [ 1 ,2,3 -c,d]pyrene
Naphthalene
Phenanthrene
Pyrene
Chemical
CAS#
91-57-6
83-32-9
208-96-8
120-12-7
56-55-3
50-32-8
205-99-2
191-24-2
207-08-9
218-01-9
53-70-3
206-44-0
86-73-7
193-39-5
91-20-3
85-01-8
129-00-0
Final Chronic
Value (ug/L)
72
56
310
21
2.2
0.96
0.68
0.44
0.64
2
0.28
7.1
39
0.28
190
19
10
Aquatic Risk_PW SIM only.xls: TRVs
1/13/2003

-------
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-------
                                               Table C-4
                        Maximum Allowable Tissue Concentrations (MATCs)
                                 for Analytes Detected in Fish Tissues
Analyte
4,4'-DDD
4,4'-DDE
4,4'-DDT
4-Methylphenol (p-Cresol)
Acenaphthene
Aroclor-1260
bis(2-Chloroethoxy)methane
bis(2-Ethylhexyl)phthalate
Dibutylphthalate
Dieldrin
Diethylphthalate
gamma-Chlordane
PCB-105
PCB-114
PCB-118
PCB-126
PCB-156
PCB-157
PCB-167
PCB-189
PCB-77
Phenol
Fish Tissue Benchmark (ug/g ww)
Carcass
0.0255
0.1339
0.0255
No Benchmark
No Benchmark
102.01
No Benchmark
No Benchmark
-
1.15
No Benchmark
No Benchmark
-
-
-
-
-
-
-
-
-
-
Fillet
0.0086
0.0449
0.0086
-
No Benchmark
34.22
-
No Benchmark
-
-
No Benchmark
No Benchmark
No Benchmark
No Benchmark
No Benchmark
0.031
No Benchmark
No Benchmark
No Benchmark
No Benchmark
No Benchmark
-
Liver
-
-
-
-
-
-
-
No Benchmark
-
-
-
-
-
-
-
-
-
-
-
-
-
107.1
Whole Body
0.008
0.042
0.008
-
-
32
-
No Benchmark
No Benchmark
0.36
-
-
No Benchmark
No Benchmark
No Benchmark
0.079
No Benchmark
No Benchmark
No Benchmark
No Benchmark
No Benchmark
25
     No Benchmark = chemical was detected in tissue, but no MATC was located.
     — = Chemical was not detected in tissue, no MATC required.
     I      h Shaded cells indicate that organ MATC is estimated from the whole body MATC, as described below.

     Source: Jarvinen& Ankley (1999)

     MATCorgm = MATCwhole body * (Lipid Content^ / Lipid Contentwholebody)

          Lipid Content Ratios:
               Fillet             1.1
               Carcass           3.2
               Liver             4.3
Aquatic Risk_Fish.xls: Fish Tissue Benchmarks
1/13/2003

-------
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-------
                                                         Table C-5
                          Soil Toxicity Benchmarks for Terrestrial Receptors (Plants, Soil Organisms)

                                Baseline Ecological Risk Assessment for the Ogden Railyard Site
Analyte
Type
Inorganics
Pesticides
Polychlorinated
Biphenyls (PCBs)
Analytes
Aluminum
Antimony
Arsenic
Barium
Beryllium
Cadmium
Calcium
Chromium
Cobalt
Copper
Iron
Lead
Magnesium
Manganese
Mercury
Nickel
Potassium
Selenium
Silver
Sodium
Thallium
Vanadium
Zinc
4,4'-DDD
4,4'-DDE
4,4'-DDT
Aldrin
alpha-BHC
alpha-Chlordane
beta-BHC
Chlordane
delta-BHC
Dieldrin
Endosulfan I
Endosulfan II
Endosulfan Sulfate
Endrin
Endrin aldehyde
Endrin ketone
gamma-BHC (Lindane)
g-Chlordane
Heptachlor
Heptachlor Epoxide
Isodrin
Kepone
Methoxychlor
Toxaphene
Aroclor-1016
Aroclor-1221
Aroclor-1232
Aroclor-1242
Aroclor-1248
Aroclor-1254
Aroclor-1260
Aroclor-1268
ORNL
Invertebrates
(mg/kg dw)
-
—
60
—
-
20
-
0.4
-
50
-
500
-
-
0.1
200
-
70
-
-
-
-
100
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
ORNL
Microbes
(mg/kg dw)
600
-
100
3000
-
20
-
10
1000
100
200
900
-
100
30
90
-
100
50
—
-
20
100
—
-
—
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
—
-
-
-
—
-
—
-
—
-
—
-
ORNL Plants
(mg/kg dw)
50
5
10
500
10
4
-
1
20
100
-
50
-
500
0.3
30
-
1
9
—
1
2
50
—
-
—
-
-
-
-
-
-
-
—
-
-
-
-
-
-
-
-
-
—
-
-
-
40
40
40
40
40
40
40
40
Dutch Target
(mg/kg dw)
-
3
29
160
1.1
0.8
-
100
9
36
-
85
-
—
0.3
35
-
0.7
-
—
1
42
140
—
-
—
-
-
-
-
0.00003
-
-
-
-
-
-
-
-
-
-
0.0007
0.0000002
—
-
-
-
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
Soil Screening
Benchmark
(mg/kg dw)
5.0E+01
3.0E+00
l.OE+01
1.6E+02
1.1E+00
8.0E-01
no benchmark
4.0E-01
9.0E+00
3.6E+01
2.0E+02
5.0E+01
no benchmark
l.OE+02
l.OE-01
3.0E+01
no benchmark
7.0E-01
2.0E+00
no benchmark
l.OE+00
2.0E+00
5.0E+01
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
3.0E-05
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
7.0E-04
2.0E-07
no benchmark
no benchmark
no benchmark
no benchmark
2.0E-02
2.0E-02
2.0E-02
2.0E-02
2.0E-02
2.0E-02
2.0E-02
2.0E-02
Soil Benchmarks.xls
1/13/2003
Page 1 of 4

-------
                                                         Table C-5
                          Soil Toxicity Benchmarks for Terrestrial Receptors (Plants, Soil Organisms)

                                Baseline Ecological Risk Assessment for the Ogden Railyard Site
Analyte
Type
Polycyclic Aromatic Hydrcarbons (PAHs)
Semi- Volatile Organic Compounds (SVOCs)
Analytes
2-Chloronaphthalene
2-Methylnaphthalene
Acenaphthene
Acenaphthylene
Aniline
Anthracene
Benzo(A)Anthracene
Benzo(A)Pyrene
Benzo(B)Fluoranthene
Benzo(G,H,I)Perylene
Benzo(K)Fluoranthene
Chrysene
Dibenz(a,h)Anthracene
DibenzorUran
Fluoranthene
Fluorene
Indeno(l,2,3-c,d)Pyrene
Naphthalene
Phenanthrene
Pyrene
1,2,4-Trichlorobenzene
1 ,2-Dichlorobenzene
1,3-Dichlorobenzene
1 ,4-Dichlorobenzene
1 -Methylnaphthalene
2,2'-oxybis( 1 -Chloropropane)
2,4,5-Trichlorophenol
2,4,6-Trichlorophenol
2,4-Dichlorophenol
2,4-Dimethylphenol
2,4-Dinitrophenol
2,4-Dinitrotoluene
2,6-Dinitrotoluene
2-Chlorophenol
2-Methylphenol (o-Cresol)
2-Nitroaniline
2-Nitrophenol
3,3'-Dichlorobenzidine
3-Nitroaniline
4,6-Dinitro-o-cresol
4-Bromophenyl-phenylether
4-Chloro-3-Methylphenol
4-Chloroaniline
4-Chlorophenyl-phenylether
4-Methylphenol
4-Nitroaniline
4-Nitrophenol
Benzyl alcohol
bis(2-Chloroethoxy)methane
bis(2-Chloroethyl)ether
bis-(2-Chloroethyl)ether
bis(2-Chloroisopropyl)ether
Bis(2-Ethylhexyl) Phthalate
Butyl Benzyl Phthalate
Carbazole
ORNL
Invertebrates
(mg/kg dw)
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
30
-
-
-
-
20
-
-
20
-
-
9
10
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
7
-
-
-
-
-
-
-
-
ORNL
Microbes
(mg/kg dw)
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
ORNL Plants
(mg/kg dw)
-
-
20
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
4
-
-
-
20
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Dutch Target
(mg/kg dw)
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
0.005
-
-
-
-
-
-
-
-
-
-
-
-
Soil Screening
Benchmark
(mg/kg dw)
no benchmark
no benchmark
2.0E+01
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
3.0E+01
no benchmark
no benchmark
no benchmark
no benchmark
2.0E+01
no benchmark
no benchmark
2.0E+01
no benchmark
no benchmark
4.0E+00
l.OE+01
no benchmark
no benchmark
2.0E+01
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
5.0E-03
no benchmark
no benchmark
no benchmark
7.0E+00
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
Soil Benchmarks.xls
1/13/2003
Page 2 of 4

-------
                                                         Table C-5
                          Soil Toxicity Benchmarks for Terrestrial Receptors (Plants, Soil Organisms)

                                Baseline Ecological Risk Assessment for the Ogden Railyard Site
Analyte
Type

Organic Compounds (VOCs)
Analytes
Dielhyl Phthalate
Dimethylphthalate
Di-N-Butyl Phthalate
Di-N-Octyl Phthalate
Hexachlorobenzene
Hexachlorobutadiene
Hexachlorocyclopentadiene
Hexachloroethane
Isophorone
Nitrobenzene
N-Nitrosodiphenylamine
n-Nitrosodipropylamine
Pentachlorophenol
Phenol
1,1,1 ,2-Tetrachloroethane
1,1,1 -Trichloroethane
1 , 1 ,2,2-Tetrachloroethane
1,1, 2-Trichloroethane
1 , 1 -Dichloroethane
1,1-Dichloroethene
1 , 1 -Dichloropropene
1,2,3-Trichlorobenzene
1,2,3-Trichloropropane
1,2,4-Trimethylbenzene
l,2-Dibromo-3-chloropropane(DBCP)
1 ,2-Dibromoethane
1 ,2-Dichloroethane
1 ,2-Dichloropropane
1,3,5-Trimethylbenzene
1,3-Dichloropropane
1,4-Dioxane
2,2-Dichloropropane
2-Butanone (MEK)
2-Chloro-l,3-butadiene(Chloroprene)
2-Chloroethyl vinyl ether
2-Chlorotoluene
2-Hexanone
3-Chloropropene (Allyl Chloride)
4-Chlorotoluene
4-Methyl-2-Pentanone (MIBK)
Acetone
Acetonitrile
Acrolein
Acrylonitrile
Benzene
Bromobenzene
Bromodichloromethane
Bromoform
Bromomethane
Carbon Disulfide
Carbon tetrachloride
Chlorobenzene
Chloroethane
Chloroform
Chloromethane
ORNL
Invertebrates
(mg/kg dw)
-
200
-
-
-
-
-
-
-
40
20
-
6
30
-
-
-
-
-
-
-
20
-
-
-
-
-
700
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
40
-
-
-
ORNL
Microbes
(mg/kg dw)
-
-
-
-
1000
-
-
-
-
1000
-
-
400
100
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1000
-
-
-
-
-
-
1000
-
-
-
-
ORNL Plants
(mg/kg dw)
100
-
200
-
-
-
10
-
-
-
-
-
3
70
-
-
-
-
-
-
-
-
-
-
-
-
-
2
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Dutch Target
(mg/kg dw)
-
-
-
-
-
-
-
-
-
-
-
-
-
0.05
-
0.07
-
0.4
0.02
0.1
-
-
-
-
-
-
0.02
0.002
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
0.000007
0.01
-
-
-
-
-
0.4
-
-
0.02
-
Soil Screening
Benchmark
(mg/kg dw)
l.OE+02
2.0E+02
2.0E+02
no benchmark
l.OE+03
no benchmark
l.OE+01
no benchmark
no benchmark
4.0E+01
2.0E+01
no benchmark
3.0E+00
5.0E-02
no benchmark
7.0E-02
no benchmark
4.0E-01
2.0E-02
l.OE-01
no benchmark
2.0E+01
no benchmark
no benchmark
no benchmark
no benchmark
2.0E-02
2.0E-03
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
7.0E-06
l.OE-02
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
4.0E-01
4.0E+01
no benchmark
2.0E-02
no benchmark
Soil Benchmarks.xls
1/13/2003
Page 3 of 4

-------
                                                         Table C-5
                          Soil Toxicity Benchmarks for Terrestrial Receptors (Plants, Soil Organisms)

                                Baseline Ecological Risk Assessment for the Ogden Railyard Site
Analyte
Type
Volatile
s.
v
X
0
Analytes
cis- 1 ,2-Dichloroethene
cis-l,3-Dichloropropene
Dibromochloromethane
Dibromomethane
Dichlorodifluoromethane
Ethyl Methacrylate
Ethylbenzene
Hexane
lodomethane
Isobutyl Alcohol
Isopropylbenzene
Methacrylonitrile
Methyl Metharcylate
Methylene Chloride
Methyl-t-butyl ether (MTBE)
n-Butylbenzene
n-Propylbenzene
o-Xylene
sec-Butylbenzene
Styrene
tert-Butylbenzene
Tetrachloroethene
Toluene
Total 1,2-Dichloroethene
Dichloroethene (all isomers)
Total Xylenes
trans- 1 ,2-Dichloroethene
trans- 1 ,3-Dichloropropene
trans- 1 ,4-Dichloro-2-Butene
Trichloroethene
Trichlorofluoromethane
Vinyl acetate
Vinyl Chloride
Xylenes-p,m
Gasoline
Grease & Oil
Lubricating oil
pH
TPH-Diesel
ORNL
Invertebrates
(mg/kg dw)
-
—
-
—
-
—
-
—
-
—
-
—
-
—
-
—
-
—
-
—
-
—
-
—
-
—
-
—
-
—
-
—
-
—
-
—
-
—
-
ORNL
Microbes
(mg/kg dw)
-
—
-
—
-
—
-
—
-
—
-
—
-
—
-
—
-
—
-
—
-
—
-
—
-
—
-
—
1000
—
-
—
-
—
-
—
-
—
-
ORNL Plants
(mg/kg dw)
-
—
-
—
-
—
-
—
-
—
-
—
-
—
-
—
-
—
-
300
-
—
200
—
-
—
-
—
-
—
-
—
-
—
-
—
-
—
-
Dutch Target
(mg/kg dw)
-
—
-
—
-
—
0.03
—
-
—
-
—
-
0.4
-
—
-
—
-
0.3
-
0.002
0.01
0.2
-
0.1
-
—
-
0.1
-
—
0.01
—
-
—
-
—
-
Soil Screening
Benchmark
(mg/kg dw)
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
3.0E-02
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
4.0E-01
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
3.0E-01
no benchmark
2.0E-03
l.OE-02
2.0E-01
no benchmark
l.OE-01
no benchmark
no benchmark
l.OE+03
l.OE-01
no benchmark
no benchmark
l.OE-02
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
Soil Benchmarks.xls
1/13/2003
Page 4 of 4

-------
                                                                           Table C-6
                                                  Summary of Concentration-Based Wildlife Toxicity Benchmarks

                                                  Baseline Ecological Risk Assessment for the Ogden Kailyard Site
Analyte
Type
Inorganics
Pesticides
.ycyclic Aromatic Hydrocarbons (PAHs)
£
Polychlorinated
Biphenyls (PCBs)
Analyte
Aluminum
Antimony
Arsenic
Barium
Beryllium
Cadmium
Calcium
Chromium +3
Chromium +6
Cobalt
Copper
Iron
Lead
Magnesium
Manganese
Mercury
Nickel
Potassium
Selenium
Silver
Sodium
Thallium
Vanadium
Zinc
4,4'-DDD
4,4'-DDE
4,4'-DDT
Aldrin
alpha-BHC
alpha-Chlordane
Atrazine
beta-BHC
Caprolactam
Chlordane
delta-BHC
Dieldrin
Endosulfan I
Endosulfan II
Endosulfan Sulfate
Endrin
Endrin Aldehyde
Endrin ketone
gamma-BHC (Lindane)
gamma-Chlordane
Heptachlor
Heptachlor Epoxide
Isodrin
Kepone
Methoxychlor
Toxaphene
2-Chloronaphthalene
2-Methylnaphthalene
Acenaphthene
Acenaphthylene
Aniline
Anthracene
Benzo(A)Anthracene
Benzo(A)Pyrene
Benzo(B)Fluoranthene
Benzo(O,H,I)Perylene
Benzo(K)Fluoranthene
Chrysene
Dibenz[a,h]anthracene
Dibenzofuran
Fluoranthene
Fluorene
Indeno(l,2,3-c,d)Pyrene
Naphthalene
Phenanthrene
Pyrene
Aroclor-1016
Aroclor-1221
Aroclor-1232
Aroclor-1242
Aroclor-1248
Aroclor-1254
Aroclor-1260
Aroclor-1268
CAS#
7429-90-5
7440-36-0
7440-38-2
7440-39-3
7440-41-7
7440-43-9
7440-70-2
7440-47-3
7440-47-3
7440-48-4
7440-50-8
7439-89-6
7439-92-1
7439-95-4
7439-96-5
7439-97-6
7440-02-0
7440-09-7
7782-49-2
7440-22-4
7440-23-5
7440-28-0
7440-62-2
7440-66-6
72-54-8
72-55-9
50-29-3
309-00-2
319-84-6
5103-71-9
1912-24-9
319-85-7
105-60-2
57-74-9
319-86-8
60-57-1
959-98-8
33213-65-9
1031-07-8
72-20-8
7421-93-4
53494-70-5
58-89-9
12789-03-6
76-44-8
1024-57-3
465-73-6
143-50-0
72-43-5
8001-35-2
91-58-7
91-57-6
83-32-9
208-96-8
62-53-3
120-12-7
56-55-3
50-32-8
205-99-2
191-24-2
207-08-9
218-01-9
53-70-3
132-64-9
206-44-0
86-73-7
193-39-5
91-20-3
85-01-8
129-00-0
12674-11-2
11104-28-2
11141-16-5
53469-21-9
12672-29-6
11097-69-1
11096-82-5
11100-14-4
Water
Benchmark
(mg/L)1
8.113
0.525
0.530
41.8
5.13
7.494
no benchmark
7.26
25.48
no benchmark
118.2
no benchmark
8.21
no benchmark
684
0.046
310.77
no benchmark
1.554
no benchmark
no benchmark
0.058
1.515
105.3
0.020
0.020
0.020
1.554
0.14
na
na
3.11
na
15.5
0.14
0.115
1.17
1.17
1.17
0.073
no benchmark
na
14.53
na
1.010
no benchmark
no benchmark
0.622
31.1
62.2
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
4.20
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
13.84
no benchmark
no benchmark
0.697
0.151
0.304
no benchmark
na
Endpoint Species
Mink
Mink
Mink
Mink
Mink
Mink

American Robin
Mink

Mink

American Robin

Mink
American Robin
Mink

Mink


Mink
Mink
American Robin
American Robin
American Robin
American Robin
Mink
Mink


Mink

American Robin
Mink
Mink
Mink
Mink
Mink
American Robin


American Robin

Mink


Mink
Mink
Mink







Mink












Mink


Mink
Mink
Masked Shrew


Diet
Benchmark
(mg/kg)1
3.825
0.248
0.250
17.2
2.42
1.2
no benchmark
0.83
0.83
no benchmark
38.9
no benchmark
0.94
no benchmark
322
0.005
64.08
no benchmark
0.331
no benchmark
no benchmark
0.027
0.714
12
0.002
0.002
0.002
0.733
0.1
1.8
no benchmark
1.47
no benchmark
1.8
0.1
0.064
0.55
0.55
0.55
0.008
no benchmark
no benchmark
1.66
1.8
0.476
no benchmark
no benchmark
0.293
14.7
29.3
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
1.98
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
6.52
0.071
0.071
0.329
0.071
0.111
0.071
0.071
Endpoint Species
Short-tailed shrew
Short-tailed shrew
Short-tailed shrew
American robin
Short-tailed shrew
American robin

American robin
American robin

American robin

American robin

Short-tailed shrew
American robin
American robin

American robin


Short-tailed shrew
Short-tailed shrew
American robin
American robin
American robin
American robin
Short-tailed shrew
Mink
American robin

Short-tailed shrew
no benchmark
American robin
Mink
American robin
Short-tailed shrew
Short-tailed shrew
Short-tailed shrew
American robin


American robin
American robin
Short-tailed shrew


Short-tailed shrew
Short-tailed shrew
Short-tailed shrew







Short-tailed shrew












Short-tailed shrew
Short-tailed shrew
Short-tailed shrew
Short-tailed shrew
Short-tailed shrew
Short-tailed shrew
Short-tailed shrew
Short-tailed shrew
Notes















Based on Methyl Mercury Dicyandiamide








Based on DDT and metabolites
Based on DDT and metabolites
Based on DDT and metabolites

Based on BHC-mixed isomers





Based on BHC-mixed isomers

Based on Endosulfan
Based on Endosulfan
Based on Endosulfan




Based on Chlordane



























Based on Aroclor-1248
Based on Aroclor-1248



Based on Aroclor-1248
Based on Aroclor-1248
Wildlife Benchmarks_All.xls
1/13/2003

-------
                                                                           Table C-6
                                                  Summary of Concentration-Based Wildlife Toxicity Benchmarks

                                                  Baseline Ecological Risk Assessment for the Ogden Kailyard Site
Analyte
Type
Petroleum
Hydrocarbons
e Organic Compounds (SVOCs)
•.p
"o
>
M

Analyte
Diesel fuel
Grease & Oil
Total Petroleum Hydrocarbons (TPH)
TPH-Diesel
TPH-Gasoline
1,2,4-Trichlorobenzene
1,2-Dichlorobenzene
1,3-Dichlorobenzene
1,4-Dichlorobenzene
1 -Methylnaphthalene
2,4, 5 -Trichl orophenol
2,4, 6-Trichl orophenol
2,4-Dichl orophenol
2,4-Dimethylphenol
2,4-Dinitrophenol
2,4-Dinitrotoluene
2,6-Dinitrotoluene
2-Chl orophenol
2-Methylphenol
2-Nitroaniline
2-Nitrophenol
3,3' -Dichlorobenzidine
3-Nitroaniline
4,6-Dinitro-o-cresol
4-Bromophenyl-phenyl ether
4-Chloro-3 -Methylphenol
4-Chloroaniline
4-Chlorophenyl-phenyl ether
4-Methylphenol
4-Nitroaniline
4-Nitrophenol
Acetophenone
Benzaldehyde
Benzyl alcohol
Biphenyl
bis(2-Chloroethoxy)methane
bis(2-Chloroethyl)ether
bis(2-Chloroisopropyl)ether
Bis(2-Ethylhexyl) Phthalate
Butyl Benzyl Phthalate
Carbazole
Diethylphthalate
Dimethylphthalate
Di-N-Butyl Phthalate
Di-N-Octyl Phthalate
Hexachlorobenzene
Hexachlorobutadiene
Hexachlorocyclopentadi ene
Hexachloroethane
Isophorone
Nitrobenzene
N-Nitrosodiphenylamine
n-Nitrosodipropylamine
Pentachlorophenol (PCP)
Phenol
,1,1 ,2-Tetrachloroethane
, 1 , 1 -Trichl oroethane
, 1 ,2,2-Tetrachl oroethane
,1,2-Trichloroethane
, 1 -Dichl oroethane
,1-Dichloroethene
, 1 -Dichl oropropene
,2, 3 -Trichl orobenzene
,2, 3 -Trichl oropropane
,2, 4-Trimethylbenzene
,2-Dibromo-3 -Chi oropropane
,2-Di chl oroethane
,2-Dichl oropropane
,3,5 -Trimethylbenzene
1,3-Di chl oropropane
1,4-Dioxane
2,2-Di chl oropropane
2-Butanone (MEK)
2-Chloro-l,3-butadiene (Chloroprene)
2-Chloroethyl vinyl ether
2-Chlorotoluene
2-Hexanone
3 -Chl oropropene (Allyl Chloride)
CAS#
68476-34-6
G&O
TPH
68334-30-5
8006-61-9
120-82-1
95-50-1
541-73-1
106-46-7
90-12-0
95-95-4
88-06-2
120-83-2
105-67-9
51-28-5
121-14-2
606-20-2
95-57-8
95-48-7
88-74-4
88-75-5
91-94-1
99-09-2
534-52-1
101-55-3
59-50-7
106-47-8
7005-72-3
106-44-5
100-01-6
100-02-7
98-86-2
100-52-7
100-51-6
92-52-4
111-91-1
111-44-4
108-60-1
117-81-7
85-68-7
86-74-8
84-66-2
131-11-3
84-74-2
117-84-0
118-74-1
87-68-3
77-47-4
67-72-1
78-59-1
98-95-3
86-30-6
621-64-7
87-86-5
108-95-2
630-20-6
71-55-6
79-34-5
79-00-5
75-34-3
75-35-4
563-58-6
87-61-6
96-18-4
95-63-6
96-12-8
107-06-2
78-87-5
108-67-8
142-28-9
123-91-1
594-20-7
78-93-3
126-99-8
110-75-8
95-49-8
591-78-6
107-05-1
Water
Benchmark
(mg/L)1
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
2214.1
no benchmark
no benchmark
na
na
no benchmark
na
no benchmark
no benchmark
no benchmark
7.99
no benchmark
no benchmark
19226
no benchmark
0.80
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
1.865
no benchmark
no benchmark
4369
no benchmark
4369
124.9
44.9
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
124.9
no benchmark
no benchmark
no benchmark
3.88
no benchmark
13759
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
Endpoint Species




























Mink









American Robin


Mink

American Robin









Mink


Mink

Mink
American Robin
Mink





American Robin



Mink

Mink





Diet
Benchmark
(mg/kg)1
no benchmark
na
no benchmark
na
na
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
1043.9
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
1043.9
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
0.91
no benchmark
no benchmark
9084
no benchmark
0.09
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
0.879
no benchmark
no benchmark
2060
no benchmark
2060
14.2
32.5
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
14.2
no benchmark
no benchmark
no benchmark
1.83
no benchmark
6487
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
Endpoint Species


















Short-tailed shrew









Short-tailed shrew









American robin


Short-tailed shrew

American robin









Short-tailed shrew


Short-tailed shrew

Short-tailed shrew
American robin
Mink





American robin



Short-tailed shrew

Short-tailed shrew





Notes




























Based on 2-methylphenol (o-cresol)





























Based on 1,1,1 -Trichl oroethane
Based on 1,2-Dichloroethane


















Wildlife Benchmarks_All.xls
1/13/2003

-------
                                                                              Table C-6
                                                    Summary of Concentration-Based Wildlife Toxicity Benchmarks

                                                    Baseline Ecological Risk Assessment for the Ogden Kailyard Site
Analyte
Type
.e Organic Compounds (VOCs)
1
"o
>
Analyte
4-Chlorotoluene
4-Methyl-2-Pentanone (MIBK)
Acetone
Acetonitrile
Acrolein
Acrylonitrile
Benzene
Bromobenzene
Bromodichloromethane
Bromoform
Bromomethane
Carbon Disulfide
Carbon Tetrachloride
Chlorobenzene
Chlorodibromomethane
Chloroethane
Chloroform
Chloromethane (Methyl chloride)
cis- 1 ,2-Dichloroethene
cis-l,3-Dichloropropene
Dibromomethane
Di chlorodifluoromethane
Ethyl Methacrylate
Ethylbenzene
Ethylene dibromide (EDB)
Hexane
lodomethane
Isobutyl Alcohol
Isopropylbenzene
Methacrylonitrile
Methyl Methacrylate
Methyl ene Chloride
Methyl-t-butyl ether (MTBE)
n-Butylbenzene
n-Propylbenzene
o-Xylene
p,m-Xylene
sec-Butylbenzene
Styrene
tert-Butylbenzene
Tetrachloroethene
Toluene
Total 1 ,2-Dichloroethene
Total Xylenes
trans- 1 ,2-Dichloroethene
trans- 1,3-Dichloropropene
trans- 1 ,4-Dichloro-2-Butene
Trichloroethene
Trichlorofluoromethane
Vinyl Acetate
Vinyl Chloride
CAS#
106-43-4
108-10-1
67-64-1
75-05-8
107-02-8
107-13-1
71-43-2
108-86-1
75-27-4
75-25-2
74-83-9
75-15-0
56-23-5
108-90-7
124-48-1
75-00-3
67-66-3
74-87-3
156-59-2
10061-01-5
74-95-3
75-71-8
97-63-2
100-41-4
106-93-4
110-54-3
74-88-4
78-83-1
98-82-8
126-98-7
80-62-6
75-09-2
1634-04-4
104-51-8
103-65-1
95-47-6
179601-23-1
135-98-8
100-42-5
98-06-6
127-18-4
108-88-3
540-59-0
1330-20-7
156-60-5
10061-02-6
110-57-6
79-01-6
75-69-4
108-05-4
75-01-4
Water
Benchmark
(mg/L)1
no benchmark
194.2
77.7
no benchmark
no benchmark
no benchmark
110.8
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
124.3
no benchmark
no benchmark
no benchmark
117
no benchmark
190.0
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
45.5
no benchmark
no benchmark
no benchmark
8.828
8.828
no benchmark
no benchmark
no benchmark
5.89
109.3
190.0
8.828
190.0
no benchmark
no benchmark
2.943
no benchmark
no benchmark
1.321
Endpoint Species

Mink
Mink



Mink





Mink



Mink

Mink












Mink



Mink
Mink



Mink
Mink
Mink
Mink
Mink


Mink


Mink
Diet
Benchmark
(mg/kg)1
no benchmark
91.6
36.6
no benchmark
no benchmark
no benchmark
52.2
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
58.6
no benchmark
no benchmark
no benchmark
55
no benchmark
89.6
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
21.4
no benchmark
no benchmark
no benchmark
4.162
4.162
no benchmark
no benchmark
no benchmark
2.77
51.5
89.6
4.162
89.6
no benchmark
no benchmark
1.387
no benchmark
no benchmark
0.623
Endpoint Species

Short-tailed shrew
Short-tailed shrew



Short-tailed shrew





Short-tailed shrew



Short-tailed shrew

Short-tailed shrew












Short-tailed shrew



Short-tailed shrew
Short-tailed shrew



Short-tailed shrew
Short-tailed shrew
Short-tailed shrew
Short-tailed shrew
Short-tailed shrew


Short-tailed shrew


Short-tailed shrew
Notes


















Based on 1 ,2-Dichloroethene
















Based on Xylene, mixed isomers
Based on Xylene, mixed isomers





Based on 1 ,2-Dichloroethene

Based on 1 ,2-Dichloroethene






 Lowest reported NOAEL benchmark from (Sample et al. 1996) for the wildlife receptors of concern at the Ogden Railyard site.
na = not analyzed, no benchmark required
Wildlife Benchmarks_All.xls
1/13/2003

-------
This page intentionally left blank to facilitate double-sided printing.

-------
                                                                                             Table C-7a
                                                                       Wildlife Toxicity Refence Values for Avian Receptors

                                                               Baseline Ecological Risk Assessment for the Ogden Roily ard Site, Utah
Type
Inorganics
Pesticides
PAHs
PCBs
SVOCs
COPC
Aluminum
Antimony
Arsenic
Barium
Cadmium
Chromium
Copper
Lead
Manganese
Mercury
Selenium
Thallium
Vanadium
Zinc
4,4'-DDE
4,4'-DDD
4,4'-DDT
Benzo[a]pyrene
Aroclor-1 254
Aroclor-1260
bis(2-Ethylhexyl)phthalate
Dibutylphthalate
CAS
7429-90-5
7440-36-0
7440-38-2
7440-39-3
7440-43-9
7440-47-3
7440-50-8


7439-96-5
7439-97-6


7440-28-0
7440-62-2
7440-66-6
72-55-9
72-54-8
50-29-3
50-32-8
11097-69-1
11096-82-5
117-81-7
84-74-2
TRY
(mg/kg BW/d)
NOAEL
109.7
na
2.46
5.14
20.8
1.45
1
47
3.85
1.13
977
0.45
0.0064
0.5
0.4
0.44
1.8
na
11.4
14.5
na
na
0.0028
na
0.18
na
1.1
0.11
LOAEL
na
na
7.38
12.84
41.7
20
5
61.7
na
11.3
na
0.9
0.064
1
0.8
1.5
na
na
na
131
na
na
0.028
na
1.8
na
na
1.1
Adjusted Values*
(mg/kg BW/d)
NOAEL
109.7
na
2.46
5.14
20.8
1.45
1
47
3.85
1.13
977
0.45
0.0064
0.5
0.4
0.44
1.8
na
11.4
14.5
na
na
0.0028
na
0.18
na
1.1
0.11
LOAEL
548.5
na
7.38
12.84
41.7
20
5
61.7
19.25
11.3
4885
0.9
0.064
1
0.8
1.5
9
na
57
131
na
na
0.028
na
1.8
na
5.5
1.1
Chemical Form






Cr+3 as CrK(SO4)2




Mercuric Chloride
Methyl Mercury
Dicyandiamide
sodium selenite
selanomethiomne
selenomethiomne
selenomethionine











Test Species
Ringed Dove
na
Brown-headed Cowbird (males only)
Mallard Ducks
1 -day old chicks
Mallard Ducks
Black Duck
1 -day old chicks
American Kestrels
Japanese Quail
Japanese Quail (males only,
starting at 1 -day old)
Japanese Quail
Mallard Duck
Mallard Duck
Mallard Duck
Screech Owl
Black-Crowned Night Heron
na
Mallard Duck
White Leghorn Hens
na
na
Brown Pelican
na
Ring-necked Pheasant
na
Ringed Dove
Ringed Dove
Exposure Route
oral in diet
na
oral in diet
oral in diet
oral in diet
oral in diet
oral in diet
oral in diet
oral in diet
oral in diet
oral in diet
oral in diet
oral in diet
oral in diet
oral in diet
oral in diet
oral in diet
na
oral in diet
oral in diet
na
na
oral in diet
na
oral via gelatin capsule
na
oral in diet
oral in diet
Reference
Camereetal., 1986
no toxicity data available
USFWS, 1969
USFWS, 1964
Johnson et al, 1960
White and Finley, 1978
Haseltine et al., unpublished data
Mehring et al., 1960
Pattee, 1984
Edensetal., 1976
Laskey and Edens, 1 985
Hill and Schaffner, 1976
Heinz, 1979
Heinz etal, 1987
Heinz etal, 1989
Wiemeyer and Hoffman, 1 996
Smith etal., 1988
no toxicity data available
White and Dieter, 1 978
Stahletal, 1990
no toxicity data available
no toxicity data available
Anderson etal., 1975
no toxicity data available
Dahlgren et al., 1972
no toxicity data available
Peakall, 1974
Peakall, 1974
All NOAEL and LOAEL values provided by Sample et al. (1996)

na = no TRV available

* Adjusted values derived based on the following assumptions:
If no LOAEL, = NOAEL * 5
If no NOAEL, = LOAEL / 5
WildlifeTRVs.xls: TRVs_Avian
1/13/2003

-------
                                                                                            Table C-7b
                                                                  Wildlife Toxicity Reference Values for Mammalian Receptors

                                                              Baseline Ecological Risk Assessment for the Ogden Railyard Site, Utah
Type
Inorganics
Pesticides
PAHs
PCBs
SVOCs
COPC
Aluminum
Antimony
Arsenic
Barium
Cadmium
Chromium
Copper
Lead
Manganese
Mercury
Selenium
Thallium
Vanadium
Zinc
4,4'-DDE
4,4'-DDD
4,4-DDT
Benzo[a]pyrene
Aroclor-1254
Aroclor-1260
bis(2-Ethylhexyl)phthalate
Dibutylphthalate
CAS
7429-90-5
7440-36-0
7440-38-2
7440-39-3
7440-43-9
7440-47-3
7440-50-8
7439-92-1
7439-96-5
7439.97-6
7782-49-2
7440-28-0
7440-62-2
7440-66-6
72-55-9
72-54-8
50-29-3
50-32-8
11097-69-1
11096-82-5
117-81-7
84-74-2
TRY
(mg/kg BW/d)
NOAEL
1.93
0.125
0.126
5.1
na
1
2737
3.28
na
11.7
8
88
i
13.2
0.015
0.032
0.2
0.0074
0.21
160
na
na
0.8
1
0.068
0.14
na
18.3
550
LOAEL
19.3
1.25
1.26
na
19.8
10
na
na
13.14
15.14
80
284
na
na
0.025
0.16
0.33
0.074
2.1
320
na
na
4
10
0.68
0.69
na
183
1833
Adjusted Values*
(mg/kg BW/d)
NOAEL
1.93
0.125
0.126
5.1
3.96
1
2737
3.28
2.628
11.7
8
88
i
13.2
0.015
0.032
0.2
0.0074
0.21
160
na
na
0.8
1
0.068
0.14
na
18.3
550
LOAEL
19.3
1.25
1.26
25.5
19.8
10
13685
16.4
13.14
15.14
80
284
5
66
0.025
0.16
0.33
0.074
2.1
320
na
na
4
10
0.68
0.69
na
183
1833
Chemical Form






Cr+3 as CR2O3
Cr+6 as K2Cr2O4
Cr+6



Mercuric Chloride, HgC12
Mercuric sulfide
Methyl Mercury Chlond
Methyl Mercury Chloride, C













Test Species
Mouse
Mouse
Mouse
Rat
Rat
Rat
Rat
Rat
Rat
Mink
Rat
Rat
Mink
Mouse
Mink
Rat
Rat
Rat
Rat
Rat


Rat
Mouse
Oldfield Mouse
(Permyscus poliontus )
Mink

Mouse
Mouse
Exposure Route
oral in water
oral in water
oral in water
(+incidental in food)
oral in water
oral gavage in water
oral gavage
oral in diet
oral in water
oral in water
oral in diet
oral in diet
oral in diet
oral in diet
oral in diet
oral in diet
oral in diet
oral in water
oral in water
oral intubation
oral in diet


oral in diet
oral intubation
oral in diet
oral in diet

oral in diet
oral in diet
Reference
Ondreickaetal., 1966
Schroederetal., 1968b
Schroeder and Mitchner, 1971
Perry etal, 1983
Borzellecaetal., 1988
Sutouetal., 1980b
Ivankovic and Preussmann, 1975
MacKenzieetal., 1958
Steven et al, 1976 (cited in Eisler, 1986)
Aulenchetal., 1982
Azaretal., 1973
Laskeyetal., 1982
Aulerich et al., 1974
Revisetal, 1989
Wobeser etal., 1976
Verschuuren et al., 1 976
Rosenfeld and Beath, 1 954
Formigh et al., 1986
Domingo et al., 1 986
Schlicker and Cox, 1968
no toxicity data available
no toxicity data available
Fitzhugh, 1948
Mackenzie and Angevme, 1981
McCoy etal., 1995
Aulerich and Ringer, 1 977
no toxicity data available
Lamb etal., 1987
Lamb etal., 1987
All NOAEL and LOAEL values provided by Sample et al. (1996)

na = no TRV available

* Adjusted values derived based on the following assumptions:
If no LOAEL, = NOAEL * 5
If no NOAEL, = LOAEL / 5
WildlifeTRVs.xls: TRVs_Mammalian
1/13/2003

-------
AVIAN RECEPTORS
                                                                                                                                                  Table C-7c
                                                                                                                      Selected Wildlife Toxicity Reference Values for Quantitative COPCs
                                                                                                                     Baselin e Ecological Risk Assessment for the Ogden Kailyard Site,  Utah
Type
Inorganics
Pesticides
PAHs
PCBs
SVOCs
COPC
Aluminum
Antimony
Arsenic
Barium
Cadmium
Chromium
Copper
Lead
Manganese
Mercury
Selenium
Thallium
Vanadium
Zinc
4,4'-DDE
4,4'-DDD
4,4'-DDT
Benzo[a]pyrene
Aroclor-1254
Aroclor-1260
bis(2-Ethylhexyl)phthalate
Dibutylphthalate
CAS#
7429-90-5
7440-36-0
7440-38-2
7440-39-3
7440-43-9
7440-47-3
7440-50-8
7439-92-1
7439-96-5
7439-97-6
7782-49-2
7440-28-0
7440-62-2
7440-66-6
72-55-9
72-54-8
50-29-3
50-32-8
11097-69-1
11096-82-5
117-81-7
84-74-2
Belted Kingfisher
NOAEL
diet
110
na
5.14
20.8
1.45
1
47
3.85
977
0.0064
1.8
na
11.4
14.5
0.0028
0.0028
0.0028
na
na
na
1.1
0.11
LOAEL
diet
549
na
12.84
41.7
20
5
61.7
19.25
4885
0.064
9
na
57
131
0.028
0.028
0.028
na
na
na
5.5
1.1
NOAEL
water
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
0.18
0.18
na
na
LOAEL
water
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
1.8
1.8
na
na
Geomean
diet
245
na
8.1
29.5
5.4
2.2
53.9
8.6
2184.6
0.02
4.0
na
25.5
43.6
0.01
0.01
0.01
na
0.6
0.6
2.5
0.3
Geomean
water
123
na
4.1
14.7
2.7
1.1
26.9
4.3
1092.3
0.01
2.0
na
12.7
21.8
0.009
0.009
0.009
na
0.6
0.6
2.5
0.3
Selected*


Mallard Duck




American Kestrel

Mallard Duck
Black-Crowned Night Heron



based on TRY for DDT
based on TRY for DDT



based on TRY for Aroclor 1254


American Robin
diet
110
na
2.46
20.8
1.45
1
47
1.13
977
0.45
0.4
na
11.4
14.5
0.0028
0.0028
0.0028
na
na
na
1.1
0.11
diet
549
na
7.38
41.7
20
5
61.7
11.3
4885
0.9
0.8
na
57
131
0.028
0.028
0.028
na
na
na
5.5
1.1
water
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
0.18
0.18
na
na
water
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
1.8
1.8
na
na
Geomean
diet
245
na
4.3
29.5
5.4
2.2
53.9
3.6
2184.6
0.64
0.6
na
25.5
43.6
0.01
0.01
0.01
na
0.6
0.6
2.5
0.3
Geomean
water
123
na
2.1
14.7
2.7
1.1
26.9
1.8
1092.3
0.32
0.3
na
12.7
21.8
0.009
0.009
0.009
na
0.6
0.6
2.5
0.3
Selected*


Brown-headed Cowbird




Japanese Quail

Japanese Quail
Mallard Duck; lowest TRY



based on TRY for DDT
based on TRY for DDT



based on TRY for Aroclor 1254


Mallard Duck
NOAEL
diet
110
na
5.14
20.8
1.45
1
47
1.13
977
0.0064
0.4
na
11.4
14.5
0.0028
0.0028
0.0028
na
na
na
1.1
0.11
LOAEL
diet
549
na
12.84
41.7
20
5
61.7
11.3
4885
0.064
0.8
na
57
131
0.028
0.028
0.028
na
na
na
5.5
1.1
NOAEL
water
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
0.18
0.18
na
na
LOAEL
water
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
1.8
1.8
na
na
Geomean
diet
245
na
8.1
29.5
5.4
2.2
53.9
3.6
2184.6
0.02
0.6
na
25.5
43.6
0.01
0.01
0.01
na
0.6
0.6
2.5
0.3
Geomean
water
123
na
4.1
14.7
2.7
1.1
26.9
1.8
1092.3
0.01
0.3
na
12.7
21.8
0.009
0.009
0.009
na
0.6
0.6
2.5
0.3
Selected*


Mallard Duck




Japanese Quail

Mallard Duck
Mallard Duck; lowest TRY



based on TRY for DDT
based on TRY for DDT



based on TRY for Aroclor 1254


MAMMALIAN RECEPTORS
Type
Inorganics
Pesticides
PAHs
PCBs
SVOCs
COPC
Aluminum
Antimony
Arsenic
Barium
Cadmium
Chromium
Copper
Lead
Manganese
Mercury
Selenium
Thallium
Vanadium
Zinc
4,4'-DDE
4,4'-DDD
4,4'-DDT
Benzo[a]pyrene
Aroclor-1254
Aroclor-1260
bis(2-Ethylhexyl)phthalate
Dibutylphthalate
CAS#
7429-90-5
7440-36-0
7440-38-2
7440-39-3
7440-43-9
7440-47-3
7440-50-8
7439-92-1
7439-96-5
7439-97-6
7782-49-2
7440-28-0
7440-62-2
7440-66-6
72-55-9
72-54-8
50-29-3
50-32-8
11097-69-1
11096-82-5
117-81-7
84-74-2
Masked Shrew
NOAEL
diet
na
na
na
na
1
2737
11.7
8
88
0.032
na
na
na
160
0.8
0.8
0.8
na
0.068
0.068
18.3
550
LOAEL
diet
na
na
na
na
10
13685
15.14
80
284
0.16
na
na
na
320
4
4
4
na
0.68
0.68
183
1833
NOAEL
water
1.93
0.125
0.126
3.96
na
2.628
na
na
na
na
0.2
0.0074
0.21
na
na
na
na
1
na
na
na
na
LOAEL
water
19.3
1.25
1.26
19.8
na
13.14
na
na
na
na
0.33
0.074
2.1
na
na
na
na
10
na
na
na
na
Geomean
diet
12.2
0.8
0.8
17.7
3.2
6120.1
13.3
25.3
158.1
0.07
1.1
1.138
1.1
226.3
1.8
1.8
1.8
1.1
0.2
0.2
57.9
1004.1
Geomean
water
6.1
0.4
0.4
8.9
1.6
5.9
6.7
12.6
79.0
0.04
0.3
0.023
0.7
113.1
1.8
1.8
1.8
3.2
0.2
0.2
57.9
1004.1
Selected*



lowest TRY

lowest TRY



Rat




based on TRY for DDT
based on TRY for DDT


Oldfield Mouse
based on TRY for Aroclor 1254


Mink
NOAEL
diet
na
na
na
na
1
2737
11.7
8
88
0.015
na
na
na
160
0.8
0.8
0.8
na
0.14
0.14
18.3
550
LOAEL
diet
na
na
na
na
10
13685
15.14
80
284
0.025
na
na
na
320
4
4
4
na
0.69
0.69
183
1833
NOAEL
water
1.93
0.125
0.126
3.96
na
2.628
na
na
na
na
0.2
0.0074
0.21
na
na
na
na
1
na
na
na
na
LOAEL
water
19.3
1.25
1.26
19.8
na
13.14
na
na
na
na
0.33
0.074
2.1
na
na
na
na
10
na
na
na
na
Geomean
diet
12.2
0.8
0.8
17.7
3.2
6120.1
13.3
25.3
158.1
0.02
1.1
1.138
1.1
226.3
1.8
1.8
1.8
1.1
0.3
0.3
57.9
1004.1
Geomean
water
6.1
0.4
0.4
8.9
1.6
5.9
6.7
12.6
79.0
0.01
0.3
0.023
0.7
113.1
1.8
1.8
1.8
3.2
0.3
0.3
57.9
1004.1
Selected*



lowest TRY

lowest TRY



Mink




based on TRY for DDT
based on TRY for DDT


Mink
based on TRY for Aroclor 1254


All units in mg/kg BW/day.

Source:  Sample et al. (1996)
*When more than one toxicity study is available, the study which most closely resembles the surrogate receptor, exposure p
If TRV was for water/gavage exposure route, *2 for food dose equivalent.
way, and chemical form expected for the site is selected.
             Wildlife TRVs.xls: Table for AppC
             1/13/2003

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                          Figure C-l Summary of the Selection Hierarchy for Sediment Toxicity Benchmarks for Aquatic Receptors

                                                Baseline Ecological Risk Assessment for the Ogden Rally ard Site
    Polycyclic Aromatic Hydrocarbons (PAHs)
  Consensus-Based TEC
  (MacDonald et al. 2000)


ARCS TEL
(Ingersoll et al. 1996)
                          PAH-Specific ESG*
                             (USEPA 2000)
            Minimum of two values
   SRC Equilibrium Partitioning Sediment Value*
     Inorganics
 Consensus-Based TEC
(MacDonald et al. 2000)


ARCS TEL
(Ingersoll et al. 1996)


NOAA ERL
(Long and Morgan 1990)
        Other
                                   Pesticides
                               Polychlorinated
                               Biphenyls (PCBs)
                           Semi-Volatile and Volatile
                             Organic Compounds
                                (SVOC/VOCs)
 Consensus-Based TEC
(MacDonald et al. 2000)
 Consensus-Based TEC
(MacDonald et al. 2000)
SRC Equilibrium Partitioning
     Sediment Value*
                                                                              SRC Equilibrium Partitioning
                                                                                   Sediment Value*
 *Screening level benchmark based on a TOC of 0.3% (the 5th percentile of all site TOC measurements).
Sed Bnchmrk Hierarchy.xls
1/13/2003

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ECOLOGICAL RISK ASSESSMENT FOR THE OGDEN KAILYARD SITE                      FINAL
                                    APPENDIX D




                            COPC SCREENING RESULTS









                   D-l: Exposure of aquatic receptors to surface water




                   D-2: Exposure of benthic organisms to sediments




                   D-3: Exposure of plants and soil invertebrates to soil




                   D-4: Exposure of wildlife receptors to surface water




                   D-5: Exposure of wildlife receptors to sediment




                   D-6: Exposure of wildlife receptors to soil




                   D-7: Exposure of wildlife receptors to dietary items

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                                                                       Appendix D-l Aquatic Receptor COPC Screen for Surface Water

                                                                                  Ecological Risk Assessment for Ogden, Utah
Group
Metals
1
Irocarbons (PAHs)
c Aromatic Hy
Analyte
AluminuiT
Antimony
Arsenic
Barium
Berylliurr
Cadmium
Calcium
Chromium
Cobalt
Copper
Iron
Lead
Magnesium
Manganese
Mercury
Nickel
Potassium
Selenium
Silver
Sodium
Thalliurr
Vanadium
Zinc
4,4'-DDD
4,4'-DDE
4,4-DDT
Aldrin
alpha-BHC
beta-BHC
Chlordane
delta-BHC
Dieldrin
Endosulfan I
Endosulfan II
Endosulfan Sulfate
Endrin
Endrin Aldehyde
gamma-BHC (LindaneJ
Heptachlor
Heptachlor Epoxide
Isodrin
Kepone
Methoxychlor
Toxaphene
2-Chloronaphthalene
2-Methylnaphthalent
Acenaphthene
Acenaphthylene
Aniline
Anthracene
Benzo[a]anthracene
Benzo[a]pyrene
Benzo[b]fluoranthene
Benzo[g,h,i]perylene
Benzo[k]nuoranthene
Chrysene
Dibenz[a,h]anthracene
Dibenzofuran
CAS#
7429-90-5
7440-36-0
7440-38-2
7440-39-3
7440-41-7
7440-43-9
7440-70-2
7440-47-3
7440-48-4
7440-50-8
7439-89-6
7439-92-1
7439-95-4
7439-96-5
7439-97-6
7440-02-0
7440-09-7
7782-49-2
7440-22-4
7440-23-5
7440-28-0
7440-62-2
7440-66-6
72-54-8
72-55-9
50-29-3
309-00-2
319-84-6
319-85-7
57-74-9
319-86-8
60-57-1
959-98-8
33213-65-9
1031-07-8
72-20-8
7421-93-4
58-89-9
76-44-8
1024-57-3
465-73-6
143-50-0
72-43-5
8001-35-2
91-58-7
91-57-6
83-32-9
208-96-8
62-53-3
120-12-7
56-55-3
50-32-8
205-99-2
191-24-2
207-08-9
218-01-9
53-70-3
132-64-9
DATA
Number of
Detections
33
1
10
67
0
19
50
19
0
21
35
22
50
49
2
21
49
3
11
50
0
1
5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
8
3
0
2
2
2
1
0
2
2
0
0
Number of
Samples
50
50
67
67
50
67
50
67
50
50
50
67
50
50
67
50
50
67
57
50
50
50
50
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
38
74
77
77
36
77
77
77
77
77
77
77
77
38
Detection
Frequency
(DF)
66%
2%
15%
100%
0%
28%
100%
28%
0%
42%
70%
33%
100%
98%
3%
42%
98%
4%
19%
100%
0%
2%
10%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
3%
10%
4%
0%
3%
3%
3%
1%
0%
3%
3%
0%
0%
Mean Non-
Detected
Cone
(mg/L)
2.10E-01
1.11E-02
5.55E-03
na
1.22E-03
1.69E-03
na
4.33E-03
3.15E-03
5.00E-03
2.00E-01
2.76E-03
na
1.50E-02
7.47E-04
8.45E-03
l.OOE+00
7.56E-03
3.53E-03
na
8.24E-03
3.86E-03
9.27E-03
5.00E-05
5.00E-05
5.00E-05
2.50E-05
2.50E-05
2.50E-05
2.50E-04
2.50E-05
5.00E-05
2.50E-05
5.00E-05
5.00E-05
5.00E-05
5.00E-05
2.50E-05
2.50E-05
2.50E-05
2.50E-05
5.00E-05
2.50E-04
5.00E-04
5.00E-03
3.08E-03
3.11E-03
2.82E-03
9.44E-04
3.03E-03
3.03E-03
2.98E-03
3.00E-03
2.99E-03
3.03E-03
2.98E-03
2.99E-03
5.00E-03
Maximum
Detected
Cone fmg/L)
1.85E+00
3.40E-03
3.10E-03
1.30E-01
na
2.90E-03
7.11E+01
7.40E-03
na
7.40E-03
2.11E+00
2.69E-02
1.94E+01
1.12E-01
9.70E-04
2.03E-01
2.26E+01
5.20E-03
1.40E-03
5.64E+01
na
5.10E-03
2.82E+00
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
2.10E-01
1.60E-01
l.OOE-02
na
1.60E-02
4.00E-04
l.OOE-04
l.OOE-04
na
2.00E-04
7.00E-04
na
na

Aquatic Surface
Water Benchmark
(mg/L)
8.70E-02
3.00E-02
1.50E-01
4.00E-03
6.60E-04
4.52E-04
1.16E+02
1.52E-01
2.30E-02
1.69E-02
l.OOE+00
7.69E-03
8.20E+01
1.20E-01
1.30E-03
9.38E-02
5.30E+01
5.00E-03
1.34E-03
6.80E+02
1.20E-02
2.00E-02
2.16E-01
1.10E-05
1.05E-02
1.30E-05
3.00E-04
5.00E-01
5.00E+00
4.30E-06
no benchmark
5.60E-05
5.60E-05
5.60E-05
no benchmark
3.60E-05
no benchmark
9.50E-05
3.80E-06
3.80E-06
no benchmark
no benchmark
3.00E-05
2.00E-07
no benchmark
no benchmark
1.70E-02
no benchmark
2.20E-03
7.30E-04
2.70E-05
1.40E-05
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
3.70E-03
COPC SELECTION STEPS
Does compound
have a TRY?
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
no
yes
yes
yes
no
yes
no
yes
yes
yes
no
no
yes
yes
no
no
yes
no
yes
yes
yes
yes
no
no
no
no
no
yes
Is compound
detected?
yes
yes
yes
yes
no
yes
yes
yes
no
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
no
yes
yes
no
no
no
no
no
no
no
na
no
no
no
na
no
na
no
no
no
na
na
no
no
na
na
yes
na
no
yes
yes
yes
na
na
na
na
na
no
Is Max Detect
>TRV?
yes
no
no
yes
na
yes
no
no
na
no
yes
yes
no
no
no
yes
no
yes
yes
no
na
no
yes
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
yes
na
na
yes
yes
yes
na
na
na
na
na
na
Is Mean DL
>TRV?
na
na
na
na
yes
na
na
na
no
na
na
na
na
na
na
na
na
na
na
na
no
na
na
yes
no
yes
no
no
no
yes
na
no
no
no
na
yes
na
no
yes
yes
na
na
yes
yes
na
na
na
na
no
na
na
na
na
na
na
na
na
yes
SURFACE WATER COPCs
QUANT
COPC
1
0
0
1
0
1
0
0
0
0
1
1
0
0
0
1
0
1
1
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
1
1
1
0
0
0
0
0
0
QUAL
COPC
Typel
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
1
0
1
0
0
0
1
1
0
0
1
1
0
1
0
0
0
0
1
1
1
1
1
0
QUAL
COPC
Type 2
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
1
0
0
0
1
0
0
0
0
0
1
0
0
1
1
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
1
Not a
COPC
0
1
1
0
0
0
1
1
1
1
0
0
1
1
1
0
1
0
0
1
1
1
0
0
1
0
1
1
1
0
0
1
1
1
0
0
0
1
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
COPCScreen_Aquatic SW.xls: SWScreen
1/13/2003
                                                                                                                                                                                                          Pagel of 4

-------
                                                                       Appendix D-l Aquatic Receptor COPC Screen for Surface Water

                                                                                  Ecological Risk Assessment for Ogden, Utah
Group
1
s.
— ^
Polychlorinate
Biphenyls (PCB
Petroleum
Hydro-
carbons
ic Compounds (SVOCs)
&
o
1
>
..i,
B
sc
Analyte
Fluoranthene
Fluorene
Indeno[l,2,3-c,d]pyrene
Naphthalene
Phenanthrene
Pyrene
Aroclor-1016
Aroclor-1221
Aroclor-1232
Aroclor-1242
Aroclor-1248
Aroclor-1254
Aroclor-1260
Diesel fuel
Total Petroleum Hydrocarbons (TPH)
1 ,2,4-Trichlorobenzene
1 ,2-Dichlorobenzene
1 ,3-Dichlorobenzene
1 ,4-Dichlorobenzene
1 -Methylnaphthalent
2,4,5-Trichlorophenol
2,4,6-Trichlorophenol
2,4-Dichlorophenol
2,4- Dimethylpheno]
2,4-Dinitrophenol
2,4-Dinitrotoluene
2,6-Dinitrotoluene
2-Chlorophenol
2-Methylphenol (o-Cresol)
2-Nitroaniline
2-Nitrophenol
3,3'-Dichlorobenzidin£
3-Nitroaniline
4,6-Dinitro-o-cresol
4-Bromophenyl-phenylethe]
4-Chloro-3-Methylphenol
4-Chloroaniline
4-Chlorophenyl-phenylethe]
4-Methylphenol (p-CresoP,
4-Nitroaniline
4-Nitrophenol
Benzyl alcohol
bis(2-Chloroethoxy)methan£
bis(2-Chloroethyl)ethei
bis(2-Chloroisopropyl)ether
bis(2-Ethylhexyl)phthalati
bis(n-octyl)phthalate
Butylbenzylphthalats
Carbazole
Dibutylphthalate
Diethylphthalate
Dimethylphthalate
Hexachlorobenzene
Hexachlorobutadiene
Hexachlorocyclopentadient
CAS#
206-44-0
86-73-7
193-39-5
91-20-3
85-01-8
129-00-0
12674-11-2
11104-28-2
11141-16-5
53469-21-9
12672-29-6
11097-69-1
11096-82-5
68476-34-6
TPH
120-82-1
95-50-1
541-73-1
106-46-7
90-12-0
95-95-4
88-06-2
120-83-2
105-67-9
51-28-5
121-14-2
606-20-2
95-57-8
95-48-7
88-74-4
88-75-5
91-94-1
99-09-2
534-52-1
101-55-3
59-50-7
106-47-8
7005-72-3
106-44-5
100-01-6
100-02-7
100-51-6
111-91-1
111-44-4
108-60-1
117-81-7
117-84-0
85-68-7
86-74-8
84-74-2
84-66-2
131-11-3
118-74-1
87-68-3
77-47-4
DATA
Number of
Detections
6
2
1
4
4
5
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
1
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4
1
1
2
4
0
0
0
0
0
Number of
Samples
77
77
77
86
77
77
24
17
17
17
17
17
24
2
6
83
83
47
83
21
38
38
38
63
38
74
74
38
74
38
38
63
38
74
18
38
38
38
74
38
38
18
38
74
42
74
74
74
74
74
74
38
74
83
38
Detection
Frequency
(DF)
8%
3%
1%
5%
5%
6%
0%
0%
0%
0%
0%
0%
4%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
2%
0%
0%
1%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
5%
1%
1%
3%
5%
0%
0%
0%
0%
0%
Mean Non-
Detected
Cone
(mg/L)
3.14E-03
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
Maximum
Detected
Cone fmg/L)
6.00E-03
6.20E-02
l.OOE-03
5.20E-01
8.40E-02
l.OOE-02
na
na
na
na
na
na
1.50E-06
na
na
na
na
na
na
na
na
na
na
5.00E-04
na
na
1.70E-02
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
4.70E-03
2.00E-04
l.OOE-04
7.00E-03
5.70E-03
na
na
na
na
na

Aquatic Surface
Water Benchmark
(mg/L)
3.98E-02
3.90E-03
no benchmark
1.20E-02
no benchmark
2.50E-05
1.40E-05
2.80E-04
5.80E-04
5.30E-05
8.10E-05
3.30E-05
9.40E-02
no benchmark
no benchmark
1.10E-01
1.40E-02
7.10E-02
1.50E-02
no benchmark
no benchmark
3.20E-03
3.65E-02
2.12E-02
6.20E-03
3.10E-01
no benchmark
4.38E-02
1.30E-02
no benchmark
3.50E+00
no benchmark
no benchmark
2.30E-03
1.50E-03
3.00E-04
no benchmark
no benchmark
no benchmark
no benchmark
3.00E-01
8.60E-03
no benchmark
2.38E+00
no benchmark
3.00E-03
l.OOE-01
1.90E-02
no benchmark
3.50E-02
2.10E-01
3.30E-01
no benchmark
9.30E-04
7.00E-05
COPC SELECTION STEPS
Does compound
have a TRY?
yes
yes
no
yes
no
yes
yes
yes
yes
yes
yes
yes
yes
no
no
yes
yes
yes
yes
no
no
yes
yes
yes
yes
yes
no
yes
yes
no
yes
no
no
yes
yes
yes
no
no
no
no
yes
yes
no
yes
no
yes
yes
yes
no
yes
yes
yes
no
yes
yes
Is compound
detected?
yes
yes
na
yes
na
yes
no
no
no
no
no
no
yes
na
na
no
no
no
no
na
na
no
no
yes
no
no
na
no
no
na
no
na
na
no
no
no
na
na
na
na
no
no
na
no
na
yes
yes
yes
na
yes
no
no
na
no
no
Is Max Detect
>TRV?
no
yes
na
yes
na
yes
na
na
na
na
na
na
no
na
na
na
na
na
na
na
na
na
na
no
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
yes
no
no
na
no
na
na
na
na
na
Is Mean DL
>TRV?
na
na
na
na
na
na
yes
yes
yes
yes
yes
yes
na
na
na
yes
yes
yes
yes
na
na
yes
yes
na
yes
yes
na
yes
yes
na
yes
na
na
yes
yes
yes
na
na
na
na
yes
yes
na
yes
na
na
na
na
na
na
yes
yes
na
yes
yes
SURFACE WATER COPCs
QUANT
COPC
0
1
0
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
QUAL
COPC
Typel
0
0
1
0
1
0
0
0
0
0
0
0
0
1
1
0
0
0
0
1
1
0
0
0
0
0
1
0
0
1
0
1
1
0
0
0
1
1
1
1
0
0
1
0
1
0
0
0
1
0
0
0
1
0
0
QUAL
COPC
Type 2
0
0
0
0
0
0
1
1
1
1
1
1
0
0
0
1
1
1
1
0
0
1
1
0
1
1
0
1
1
0
1
0
0
1
1
1
0
0
0
0
1
1
0
1
0
0
0
0
0
0
1
1
0
1
1
Not a
COPC
1
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
1
0
0
0
0
0
COPCScreen_Aquatic SW.xls: SWScreen
1/13/2003
                                                                                                                                                                                                          Page 2 of 4

-------
                                                                       Appendix D-l Aquatic Receptor COPC Screen for Surface Water

                                                                                  Ecological Risk Assessment for Ogden, Utah
Group

c Compounds (VOCs)
&
o
1
>
Analyte
Hexachloroethane
Isophorone
Nitrobenzene
N-Nitrosodiphenylamim
n-Nitrosodipropylamint
Pentachlorophenol (PCP)
Phenol
,1,1 ,2-Tetrachloroethane
,1,1 -Trichloroethane
,1,2,2-Tetrachloroethane
, 1 ,2-Trichloroethane
,1-Dichloroe thane
,1-Dichloroethene
, 1 -Dichloropropene
,2,3-Trichlorobenzene
,2,3-Trichloropropane
,2,4-Trimethylbenzene
,2-Dibromo-3-chloropropane (DBCP)
,2-Dichloroe thane
,2-Dichloroethene
,2-Dichloropropane
,3,5-Trimethylbenzene
,3-Dichloropropane
,4-Dioxane
2,2-Dichloropropane
2-Chloro-l,3-butadiene (Chloroprene)
2-Chloroethyl vinyl ethei
2-Chlorotoluene
2-Hexanone
3-Chloropropene (Allyl Chloride;
4-Chlorotoluene
Acetone
Acetonitrile
Acrolein
Acrylonitrik
Benzene
Bromobenzene
Bromodichloromethane
Bromoform
Bromomethane (Methyl bromide;
Carbon Disulfid£
Carbon Tetrachloride
Chlorobenzene
Chlorodibromomethane
Chloroethane (Ethyl chloride;
Chloroform
Chloromethane (Methyl chloride;
cis-l,2-Dichloroethene
cis-l,3-Dichloropropene
Dibromomethane
Dichlorodifluoromethant
Dichloromethane
Ethyl Methacrylate
Ethylbenzene
Ethylene dibromide (EDB;
Hexane
lodomethane
CAS#
67-72-1
78-59-1
98-95-3
86-30-6
621-64-7
87-86-5
108-95-2
630-20-6
71-55-6
79-34-5
79-00-5
75-34-3
75-35-4
563-58-6
87-61-6
96-18-4
95-63-6
96-12-8
107-06-2
540-59-0
78-87-5
108-67-8
142-28-9
123-91-1
594-20-7
126-99-8
110-75-8
95-49-8
591-78-6
107-05-1
106-43-4
67-64-1
75-05-8
107-02-8
107-13-1
71-43-2
108-86-1
75-27-4
75-25-2
74-83-9
75-15-0
56-23-5
108-90-7
124-48-1
75-00-3
67-66-3
74-87-3
156-59-2
10061-01-5
74-95-3
75-71-8
75-09-2
97-63-2
100-41-4
106-93-4
110-54-3
74-88-4
DATA
Number of
Detections
0
0
0
0
0
3
5
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
13
0
0
0
1
0
0
0
0
1
0
0
0
0
0
0
0
0
0
1
26
0
2
0
0
0
Number of
Samples
74
38
74
38
74
74
74
40
84
84
84
84
9
9
9
84
9
43
84
75
84
9
9
31
9
31
55
9
67
31
9
61
75
31
55
84
9
84
84
84
84
84
84
84
84
84
84
44
93
40
40
84
31
84
84
44
31
Detection
Frequency
(DF)
0%
0%
0%
0%
0%
4%
7%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
2%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
21%
0%
0%
0%
1%
0%
0%
0%
0%
1%
0%
0%
0%
0%
0%
0%
0%
0%
0%
3%
31%
0%
2%
0%
0%
0%
Mean Non-
Detected
Cone
(mg/L)
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
Maximum
Detected
Cone (mg/L)
na
na
na
na
na
l.OOE-03
5.00E-03
na
na
na
na
na
na
na
na
na
na
1.70E-03
na
na
na
na
na
na
na
na
na
na
na
na
na
4.00E+00
na
na
na
2.00E-03
na
na
na
na
1.20E-03
na
na
na
na
na
na
na
na
na
3.60E-03
5.80E+00
na
8.10E-03
na
na
na

Aquatic Surface
Water Benchmark
(mg/L)
1.20E-02
1.17E+00
2.70E-01
2.10E-01
no benchmark
1.50E-02
2.56E-01
no benchmark
1.10E-02
6.10E-01
1.20E+00
4.70E-02
2.50E-02
no benchmark
8.00E-03
no benchmark
no benchmark
no benchmark
9.10E-01
5.90E-01
5.25E-01
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
3.54E+00
no benchmark
9.90E-02
no benchmark
no benchmark
1.50E+00
no benchmark
2.10E-03
7.55E-02
1.30E-01
no benchmark
no benchmark
3.20E-01
1.10E-01
9.20E-04
9.80E-03
6.40E-02
no benchmark
no benchmark
2.80E-02
5.50E+00
no benchmark
no benchmark
no benchmark
no benchmark
2.20E+00
no benchmark
7.30E-03
no benchmark
5.80E-04
no benchmark
COPC SELECTION STEPS
Does compound
have a TRY?
yes
yes
yes
yes
no
yes
yes
no
yes
yes
yes
yes
yes
no
yes
no
no
no
yes
yes
yes
no
no
no
no
no
yes
no
yes
no
no
yes
no
yes
yes
yes
no
no
yes
yes
yes
yes
yes
no
no
yes
yes
no
no
no
no
yes
no
yes
no
yes
no
Is compound
detected?
no
no
no
no
na
yes
yes
na
no
no
no
no
no
na
no
na
na
na
no
no
no
na
na
na
na
na
no
na
no
na
na
yes
na
no
no
yes
na
na
no
no
yes
no
no
na
na
no
no
na
na
na
na
yes
na
yes
na
no
na
Is Max Detect
>TRV?
na
na
na
na
na
no
no
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
yes
na
na
na
no
na
na
na
na
yes
na
na
na
na
na
na
na
na
na
na
yes
na
yes
na
na
na
Is Mean DL
>TRV?
yes
yes
yes
yes
na
na
na
na
yes
yes
yes
yes
yes
na
yes
na
na
na
yes
yes
yes
na
na
na
na
na
yes
na
yes
na
na
na
na
yes
yes
na
na
na
yes
yes
na
yes
yes
na
na
yes
yes
na
na
na
na
na
na
na
na
yes
na
SURFACE WATER COPCs
QUANT
COPC
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
1
0
1
0
0
0
QUAL
COPC
Typel
0
0
0
0
1
0
0
1
0
0
0
0
0
1
0
1
1
1
0
0
0
1
1
1
1
1
0
1
0
1
1
0
1
0
0
0
1
1
0
0
0
0
0
1
1
0
0
1
1
1
1
0
1
0
1
0
1
QUAL
COPC
Type 2
1
1
1
1
0
0
0
0
1
1
1
1
1
0
1
0
0
0
1
1
1
0
0
0
0
0
1
0
1
0
0
0
0
1
1
0
0
0
1
1
0
1
1
0
0
1
1
0
0
0
0
0
0
0
0
1
0
Not a
COPC
0
0
0
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
COPCScreen_Aquatic SW.xls: SWScreen
1/13/2003
                                                                                                                                                                                                          Page 3 of 4

-------
                                                                       Appendix D-l  Aquatic Receptor COPC Screen for Surface Water

                                                                                   Ecological Risk Assessment for Ogden, Utah
Group

Analyte
Isobutyl Alcohol
Isopropylbenzene
Methacrylonitrik
Methyl ethyl ketone (MEK)
Methyl isobutyl ketone (MIBKJ
Methyl Metharcylate
Methyl-t-butyl ether (MTBE)
n-Butylbenzene
n-Propylbenzene
o-Xylene
sec-Butylbenzene
Styrene
tert-Butylbenzene
Tetrachloroethene
Toluene
trans-l,2-Dichloroethene
trans-l,3-Dichloropropene
trans-l,4-Dichloro-2-Butene
Trichloroethene
Trichlorofluoromethane
Vinyl Acetate
Vinyl Chlorids
Xylenes (Total)
Xylenes-p,m
CAS#
78-83-1
98-82-8
126-98-7
78-93-3
108-10-1
80-62-6
1634-04-4
104-51-8
103-65-1
95-47-6
135-98-8
100-42-5
98-06-6
127-18-4
108-88-3
156-60-5
10061-02-6
110-57-6
79-01-6
75-69-4
108-05-4
75-01-4
1330-20-7
179601-23-1
DATA
Number of
Detections
0
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
Number of
Samples
31
18
75
63
84
31
9
9
9
9
9
84
9
84
84
53
84
31
84
84
75
84
75
9
Detection
Frequency
(DF)
0%
0%
0%
2%
1%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
1%
0%
Mean Non-
Detected
Cone
(mg/L)
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
Maximum
Detected
Cone fmg/L)
na
na
na
2.20E-03
1.50E-03
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
4.80E-03
na

Aquatic Surface
Water Benchmark
(mg/L)
no benchmark
no benchmark
no benchmark
1.40E+01
1.70E-01
no benchmark
no benchmark
no benchmark
no benchmark
1.30E-02
no benchmark
7.20E-02
no benchmark
9.80E-02
9.80E-03
no benchmark
no benchmark
no benchmark
4.70E-02
no benchmark
1.60E-02
no benchmark
1.30E-02
1.80E-03
COPC SELECTION STEPS
Does compound
haveaTRV?
no
no
no
yes
yes
no
no
no
no
yes
no
yes
no
yes
yes
no
no
no
yes
no
yes
no
yes
yes
Is compound
detected?
na
na
na
yes
yes
na
na
na
na
no
na
no
na
no
no
na
na
na
no
na
no
na
yes
no
Is Max Detect
>TRV?
na
na
na
no
no
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
no
na
Is Mean DL
>TRV?
na
na
na
na
na
na
na
na
na
yes
na
yes
na
yes
yes
na
na
na
yes
na
yes
na
na
yes
SURFACE WATER COPCs
QUANT
COPC
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
QUAL
COPC
Typel
1
1
1
0
0
1
1
1
1
0
1
0
1
0
0
1
1
1
0
1
0
1
0
0
QUAL
COPC
Type 2
0
0
0
0
0
0
0
0
0
1
0
1
0
1
1
0
0
0
1
0
1
0
0
1
Not a
COPC
0
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
                                                                                                                                                                    Totals   |     21
COPCScreen_Aquatic SW.xls: SWScreen
1/13/2003
                                                                                                                                                                                                           Page 4 of 4

-------
                                                                           Appendix D-2 Aquatic Receptor COPC Screen for Sediment

                                                                                    Ecological Risk Assessment far Ogden, Utah
Group
Metals
1
•ocarbons (PAHs)
Analyte
Aluminum
Antimony
Arsenic
Barium
Beryllium
Cadmium
Calcium
Chromium
Cobalt
Copper
Iron
Lead
Magnesium
Manganese
Mercury
Nickel
Potassium
Selenium
Silver
Sodium
Thallium
Vanadium
Zinc
4,4'-DDD
4,4'-DDE
4,4-DDT
Aldrin
alpha-BHC
alpha-Chlordane
Atrazine
beta-BHC
Caprolactam
Chlordane
delta-BHC
Dieldrin
Endosulfan I
Endosulfan II
Endosulfan Sulfate
Endrin
Endrin Aldehyde
Endrin ketone
gamma-BHC (Lindane)
gamma-Chlordane
Heptachlor
Heptachlor Epoxide
Isodrin
Kepone
Methoxychlor
Toxaphene
2-Chloronaphthalene
1 -Methylnaphthalene
2-Methylnaphthalene
Acenaphthene
Acenaphthylene
Aniline
Anthracene
Benzofa] anthracene
Benzo[a]pyrene
CAS#
7429-90-5
7440-36-0
7440-38-2
7440-39-3
7440-41-7
7440-43-9
7440-70-2
7440-47-3
7440-48-4
7440-50-8
7439-89-6
7439-92-1
7439-95-4
7439-96-5
7439-97-6
7440-02-0
7440-09-7
7782-49-2
7440-22-4
7440-23-5
7440-28-0
7440-62-2
7440-66-6
72-54-8
72-55-9
50-29-3
309-00-2
319-84-6
5103-71-9
1912-24-9
319-85-7
105-60-2
57-74-9
319-86-8
60-57-1
959-98-8
33213-65-9
1031-07-8
72-20-8
7421-93-4
53494-70-5
58-89-9
12789-03-6
76-44-8
1024-57-3
465-73-6
143-50-0
72-43-5
8001-35-2
91-58-7
90-12-0
91-57-6
83-32-9
208-96-8
62-53-3
120-12-7
56-55-3
50-32-8
DATA
Number of
Detections
32
2
30
45
16
14
32
49
32
32
32
49
32
32
28
32
0
8
10
32
3
32
32
0
7
2
0
0
2
0
0
0
0
0
1
0
0
0
0
3
0
0
2
0
0
0
0
0
0
0
2
12
24
22
0
36
54
59
Number of
Samples
32
32
50
50
32
50
32
50
32
32
32
50
32
32
50
32
32
50
50
32
32
32
32
65
65
65
65
65
47
21
65
20
18
65
65
65
65
65
65
65
47
65
47
65
65
18
18
65
65
74
21
100
114
114
28
114
114
114
Detection
Frequency
(DF)
100%
6°/
60°
90°
50°
28°
100
98°
100
100
100
98°
100
100
56°
100
0°/
16°
20°
100
go/
100
100
0°/
11°
3°/
0°/
0°/
4°/
0°/
0°/
0°/
0°/
0°/
2°/
0°/
0°/
0°/
0°/
5°/
0°/
0°/
4°/
0°/
0°/
0°/
0°/
0°/
0°/
0°/
10°
12°
21°
19°
0°/
32°
47°
52°
Mean Non-
Detected
Cone
(mg/kg)
na
2.09E-03
2.36E-03
2.72E-02
2.95E-04
1.77E-04
na
5.00E-04
na
na
na
l.OOE-03
na
na
2.04E-05
na
na
1.20E-03
2.42E-04
na
7.47E-04
na
na
4.44E-06
4.50E-06
4.50E-06
2.64E-06
2.64E-06
2.17E-06
1.43E-03
2.64E-06
1.15E-03
4.00E-05
2.64E-06
4.47E-06
2.64E-06
4.44E-06
4.44E-06
4.44E-06
4.49E-06
3.07E-06
2.64E-06
2.17E-06
2.64E-06
2.64E-06
4.00E-06
8.00E-06
1.91E-05
1.15E-04
8.25E-04
4.64E-04
6.68E-04
6.22E-04
6.00E-04
6.36E-04
7.09E-04
8.27E-04
8.63E-04
Maximum
Detected Cone
(mg/kg)
1.67E+04
1.40E+00
5.40E+00
2.49E+02
6.30E-01
9.60E-01
1.10E+05
2.23E+01
7.70E+00
3.76E+01
2.10E+04
1.20E+02
1.10E+04
9.60E+02
5.30E-01
2.00E+01
na
5.80E+00
1.20E+00
3.81E+02
1.30E+00
3.18E+01
1.82E+02
na
1.20E-02
6.10E-03
na
na
1.30E-02
na
na
na
na
na
5.40E-03
na
na
na
na
8.10E-03
na
na
1.70E-02
na
na
na
na
na
na
na
2.10E+02
1.40E+03
8.50E+02
1.30E+02
na
5.20E+02
3.40E+02
3.50E+02

Sediment
Benchmark
(mg/kg)
2.55E+04
2.00E+00
9.79E+00
4.80E+04
no benchmark
9.90E-01
no benchmark
4.34E+01
no benchmark
3.16E+01
2.00E+04
3.58E+01
no benchmark
1.67E+03
1.80E-01
2.27E+01
no benchmark
l.OOE+00
l.OOE+00
no benchmark
no benchmark
5.70E+01
1.21E+02
4.88E-03
3.16E-03
4.16E-03
4.37E-02
2.99E+00
no benchmark
no benchmark
6.38E+01
no benchmark
3.24E-03
no benchmark
1.90E-03
1.06E-03
1.14E-03
no benchmark
2.22E-03
no benchmark
no benchmark
2.37E-03
no benchmark
3.96E-05
2.47E-03
no benchmark
no benchmark
7.20E-03
1.26E-04
no benchmark
1.34E+00
1.34E+00
1.36E+00
1 .47E+00
3.56E-04
5.72E-02
1.08E-01
1.50E-01
COPC SELECTION STEPS
Does
compound
have a
TRY?
yes
yes
yes
yes
no
yes
no
yes
no
yes
yes
yes
no
yes
yes
yes
no
yes
yes
no
no
yes
yes
yes
yes
yes
yes
yes
no
no
yes
no
yes
no
yes
yes
yes
no
yes
no
no
yes
no
yes
yes
no
no
yes
yes
no
yes
yes
yes
yes
yes
yes
yes
yes
Is
compound
detected?
yes
yes
yes
yes
na
yes
na
yes
na
yes
yes
yes
na
yes
yes
yes
na
yes
yes
na
na
yes
yes
no
yes
yes
no
no
na
na
no
na
no
na
yes
no
no
na
no
na
na
no
na
no
no
na
na
no
no
na
yes
yes
yes
yes
no
yes
yes
yes
Is Max
Detect >
TRY?
no
no
no
no
na
no
na
no
na
yes
yes
yes
na
no
yes
no
na
yes
yes
na
na
no
yes
na
yes
yes
na
na
na
na
na
na
na
na
yes
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
yes
yes
yes
yes
na
yes
yes
yes
Is Mean DL
>TRV?
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
no
na
na
no
no
na
na
no
na
no
na
na
no
no
na
no
na
na
no
na
no
no
na
na
no
no
na
na
na
na
na
yes
na
na
na
SEDIMENT COPCs
QUANT
COPC
0
0
0
0
0
0
0
0
0
1
1
1
0
0
1
0
0
1
1
0
0
0
1
0
1
1
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
0
1
1
1
QUAL
COPC
Typel
0
0
0
0
1
0
1
0
1
0
0
0
1
0
0
0
1
0
0
1
1
0
0
0
0
0
0
0
1
1
0
1
0
1
0
0
0
1
0
1
1
0
1
0
0
1
1
0
0
1
0
0
0
0
0
0
0
0
QUAL
COPC
Type 2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
Not a
COPC
1
1
1
1
0
1
0
1
0
0
0
0
0
1
0
1
0
0
0
0
0
1
0
1
0
0
1
1
0
0
1
0
1
0
0
1
1
0
1
0
0
1
0
1
1
0
0
1
1
0
0
0
0
0
0
0
0
0
COPCScreen_ Aquatic Sed.xls: SedScreen
1/13/2003
                                                                                                                                                                                                          Pagel of 4

-------
                                                                           Appendix D-2 Aquatic Receptor COPC Screen for Sediment

                                                                                    Ecological Risk Assessment for Ogden, Utah
Group
Polycyclic Aromatic Hydi
Dlychlorinated
ihenyls (PCBs)
fc s
Petroleum
Hydro-
carbons
Semi- Volatile Organic Compounds (SVOCs)
Analyte
B enzo [b] fluor anthene
Benzo[g,h,i]perylene
B enzo [k] fluor anthene
Chrysene
Dibenz[a,h] anthracene
Dibenzofuran
Fluoranthene
Fluorene
Indeno[l,2,3-c,d]pyrene
Naphthalene
Phenanthrene
Pyrene
Aroclor-1016
Aroclor-1221
Aroclor-1232
Aroclor-1242
Aroclor-1248
Aroclor-1254
Aroclor-1260
Aroclor-1268
Total Petroleum Hydrocarbons (TPH)
1 ,2,4-Trichlorobenzene
1 ,2-Dichlorobenzene
1 ,3-Dichlorobenzene
1 ,4-Dichlorobenzene
2,2'-oxybis(l -Chloropropane)
2,4,5-Trichlorophenol
2,4,6-Trichlorophenol
2,4-Dichlorophenol
2,4-Dimethylphenol
2,4-Dinitrophenol
2,4-Dinitrotoluene
2,6-Dinitrotoluene
2-Chlorophenol
2-Methylphenol (o-Cresol)
2-Nitroaniline
2-Nitrophenol
3,3'-Dichlorobenzidine
3-Nitroaniline
4,6-Dinitro-o-cresol
4-Bromophenyl-phenylether
4-Chloro-3-Methylphenol
4-Chloroaniline
4-Chlorophenyl-phenylether
4-Methylphenol (p-Cresol)
4-Nitroaniline
4-Nitrophenol
Acetophenone
Benzaldehyde
Benzyl alcohol
Biphenyl
bis(2-Chloroethoxy)methane
bis-(2-Chloroethyl)ether
bis(2-Chloroethyl)ether
bis(2-Chloroisopropyl)ether
CAS#
205-99-2
191-24-2
207-08-9
218-01-9
53-70-3
132-64-9
206-44-0
86-73-7
193-39-5
91-20-3
85-01-8
129-00-0
12674-11-2
11104-28-2
11141-16-5
53469-21-9
12672-29-6
11097-69-1
11096-82-5
11100-14-4
TPH
120-82-1
95-50-1
541-73-1
106-46-7
108-60-1
95-95-4
88-06-2
120-83-2
105-67-9
51-28-5
121-14-2
606-20-2
95-57-8
95-48-7
88-74-4
88-75-5
91-94-1
99-09-2
534-52-1
101-55-3
59-50-7
106-47-8
7005-72-3
106-44-5
100-01-6
100-02-7
98-86-2
100-52-7
100-51-6
92-52-4
111-91-1
111-44-4
111-44-4
108-60-1
DATA
Number of
Detections
57
50
54
63
28
4
65
20
51
21
51
76
0
0
0
0
0
2
20
0
11
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
15
0
0
0
0
0
1
0
0
0
0
Number of
Samples
114
114
114
114
114
74
114
114
114
129
114
114
86
86
86
86
86
85
86
15
11
76
76
69
76
1
74
74
74
81
74
81
81
74
81
74
74
81
74
81
35
74
74
74
81
74
74
20
21
15
20
74
1
1
1
Detection
Frequency
(DF)
50%
44%
47%
55%
25%
5°/
57°
18°
45°
16°
45°
67°
O0/
O0/
O0/
O0/
O0/
2°/
23°
O0/
100%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
1%
0%
0%
0%
0%
0%
0%
19%
0%
0%
0%
0%
0%
5%
0%
0%
0%
0%
Mean Non-
Detected
Cone
(mg/kg)
8.58E-04
8.03E-04
8.28E-04
9.16E-04
6.54E-04
8.28E-04
9.44E-04
6.15E-04
8.14E-04
5.48E-04
8.22E-04
1.05E-03
5.77E-05
7.63E-05
5.77E-05
5.77E-05
5.77E-05
5.89E-05
4.31E-05
4.39E-05
na
6.10E-04
6.10E-04
5.53E-04
6.10E-04
2.15E-03
1.35E-03
8.25E-04
8.25E-04
8.56E-04
1.85E-03
8.56E-04
8.56E-04
8.25E-04
8.56E-04
1.85E-03
8.25E-04
9.65E-04
1.85E-03
2.18E-03
1.39E-03
8.25E-04
8.25E-04
8.25E-04
7.83E-04
1.85E-03
1.85E-03
1.15E-03
1.43E-03
1.71E-03
1.10E-03
8.25E-04
2.15E-03
2.15E-03
2.15E-03
Maximum
Detected Cone
(mg/kg)
1.60E+02
2.00E+02
1.70E+02
3.60E+02
7.20E+01
4.10E+00
6.40E+02
4.20E+02
1.60E+02
1.90E+03
1.90E+03
1.20E+03
na
na
na
na
na
1.40E-01
4.20E+00
na
2.20E+03
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
3.70E-02
na
na
na
na
na
na
4.80E+00
na
na
na
na
na
7.90E+00
na
na
na
na

Sediment
Benchmark
(mg/kg)
2.94E+00
1.94E+00
2.94E+00
1.66E-01
3.30E-02
9.02E-02
4.23E-01
7.74E-02
3.35E+00
1.76E-01
2.04E-01
1.95E-01
5.98E-02
5.98E-02
5.98E-02
5.98E-02
5.98E-02
5.98E-02
5.98E-02
5.98E-02
no benchmark
4.72E-01
1.18E-02
6.24E-02
2.70E-02
no benchmark
no benchmark
no benchmark
no benchmark
1.14E-03
no benchmark
8.37E-02
no benchmark
6.72E-03
4.02E-03
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
7.65E-02
6.46E-04
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
1.29E-04
5.88E-02
no benchmark
5.64E-01
5.64E-01
no benchmark
COPC SELECTION STEPS
Does
compound
have a
TRY?
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
no
yes
yes
yes
yes
no
no
no
no
yes
no
yes
no
yes
yes
no
no
no
no
no
yes
yes
no
no
no
no
no
no
no
yes
yes
no
yes
yes
no
Is
compound
detected?
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
no
no
no
no
no
yes
yes
no
na
no
no
no
no
na
na
na
na
no
na
no
na
no
no
na
na
na
na
na
no
no
na
na
na
na
na
na
na
no
yes
na
no
no
na
Is Max
Detect >
TRY?
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
na
na
na
na
na
yes
yes
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
yes
na
na
na
na
Is Mean DL
>TRV?
na
na
na
na
na
na
na
na
na
na
na
na
no
no
no
no
no
na
na
no
na
no
no
no
no
na
na
na
na
no
na
no
na
no
no
na
na
na
na
na
no
yes
na
na
na
na
na
na
na
yes
na
na
no
no
na
SEDIMENT COPCs
QUANT
COPC
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
QUAL
COPC
Typel
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
1
1
1
1
0
1
0
1
0
0
1
1
1
1
1
0
0
1
1
1
1
1
1
1
0
0
1
0
0
1
QUAL
COPC
Type 2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
1
0
0
0
0
0
Not a
COPC
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
0
0
1
0
1
1
1
1
0
0
0
0
1
0
1
0
1
1
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
1
1
0
COPCScreen_ Aquatic Sed.xls: SedScreen
1/13/2003
                                                                                                                                                                                                          Page 2 of 4

-------
                                                                           Appendix D-2 Aquatic Receptor COPC Screen for Sediment

                                                                                    Ecological Risk Assessment for Ogden, Utah
Group

c Compounds (VOCs)
&
o
Analyte
bis(2-Ethylhexyl)phthalate
bis(n-octyl)phthalate
Butylbenzylphthalate
Carbazole
Dibutylphthalate
Diethylphthalate
Dimethylphthalate
Hexachlorobenzene
Hexachlorobutadiene
Hexachlorocyclopentadiene
Hexachloroethane
Isophorone
Nitrobenzene
N-Nitrosodiphenylamine
n-Nitrosodipropylamine
Pentachlorophenol (POP)
Phenol
1,1,1 ,2-Tetrachloroethane
1,1,1 -Trichloroethane
1,1,2,2-Tetrachloroethane
1 , 1 ,2-Trichloroethane
1 , 1 -Dichloroe thane
1,1-Dichloroethene
1 , 1 -Dichloropropene
1 ,2,3-Trichlorobenzene
1 ,2,3-Trichloropropane
1 ,2,4-Trimethylbenzene
l,2-Dibromo-3-chloropropane (DBCP)
1,2-Dichloroe thane
1,2-Dichloroethene
1 ,2-Dichloropropane
1 ,3,5-Trimethylbenzene
1 ,3-Dichloropropane
1,4-Dioxane
2,2-Dichloropropane
-Chloro-l,3-butadiene (Chloroprene)
-Chloroethyl vinyl ether
-Chlorotoluene
-Hexanone
3-Chloropropene (Allyl Chloride)
4-Chlorotoluene
Acetone
Acetonitrile
Acrolein
Acrylonitrile
Benzene
Bromobenzene
Bromodichloromethane
Bromoform
Bromomethane (Methyl bromide)
Carbon Disulfide
Carbon Tetrachloride
Chlorobenzene
Chlorodibromomethane
Chloroethane (Ethyl chloride)
Chloroform
Chloromethane (Methyl chloride)
cis-l,2-Dichloroethene
CAS#
117-81-7
117-84-0
85-68-7
86-74-8
84-74-2
84-66-2
131-11-3
118-74-1
87-68-3
77-47-4
67-72-1
78-59-1
98-95-3
86-30-6
621-64-7
87-86-5
108-95-2
630-20-6
71-55-6
79-34-5
79-00-5
75-34-3
75-35-4
563-58-6
87-61-6
96-18-4
95-63-6
96-12-8
107-06-2
540-59-0
78-87-5
108-67-8
142-28-9
123-91-1
594-20-7
126-99-8
110-75-8
95-49-8
591-78-6
107-05-1
106-43-4
67-64-1
75-05-8
107-02-8
107-13-1
71-43-2
108-86-1
75-27-4
75-25-2
74-83-9
75-15-0
56-23-5
108-90-7
124-48-1
75-00-3
67-66-3
74-87-3
156-59-2
DATA
Number of
Detections
46
1
5
6
5
1
0
0
0
0
0
0
0
0
0
0
2
0
0
0
1
1
0
0
0
0
1
0
0
0
0
1
0
0
0
0
0
0
0
0
0
38
0
1
1
3
0
0
0
4
12
0
1
0
0
0
1
0
Number of
Samples
82
81
81
81
81
81
74
81
96
74
81
74
81
74
81
81
81
35
68
68
68
68
15
15
15
68
15
56
68
53
68
15
15
20
15
20
53
15
68
20
15
68
53
53
53
68
15
68
68
68
68
68
68
68
68
68
68
33
Detection
Frequency
(DF)
56%
1%
6%
7%
6%
1%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
2%
0%
0%
0%
1%
1%
0%
0%
0%
0%
7%
0%
0%
0%
0%
7%
0%
0%
0%
0%
0%
0%
0%
0%
0%
56%
0%
2%
2%
4%
0%
0%
0%
6%
18%
0%
1%
0%
0%
0%
1%
0%
Mean Non-
Detected
Cone
(mg/kg)
1.31E-03
8.61E-04
8.89E-04
8.11E-04
8.96E-04
8.64E-04
8.25E-04
8.56E-04
7.22E-04
8.25E-04
8.56E-04
8.25E-04
8.56E-04
8.25E-04
8.56E-04
2.22E-03
8.73E-04
3.29E-06
3.05E-06
3.05E-06
3.06E-06
3.06E-06
l.OOE-06
l.OOE-06
l.OOE-06
3.79E-06
1.02E-06
4.21E-06
3.05E-06
6.26E-06
3.05E-06
1.02E-06
l.OOE-06
1.50E-04
l.OOE-06
5.00E-06
4.73E-06
l.OOE-06
6.06E-06
5.00E-06
l.OOE-06
7.80E-06
1.98E-05
3.16E-05
2.00E-05
3.00E-06
l.OOE-06
3.05E-06
3.05E-06
5.96E-06
3.17E-06
3.05E-06
3.06E-06
3.05E-06
5.72E-06
3.05E-06
5.51E-06
5.09E-06
Maximum
Detected Cone
(mg/kg)
4.00E+00
5.20E-01
6.70E-01
6.90E+00
9.90E-02
4.40E-02
na
na
na
na
na
na
na
na
na
na
1.10E-01
na
na
na
4.00E-03
5.20E-03
na
na
na
na
1.20E-01
na
na
na
na
1.20E-01
na
na
na
na
na
na
na
na
na
3.90E-01
na
4.50E-03
l.OOE-02
4.80E-02
na
na
na
l.OOE-02
7.00E-03
na
1.90E-03
na
na
na
5.00E-03
na

Sediment
Benchmark
(mg/kg)
5.22E-02
7.16E-01
9.69E-01
no benchmark
6.63E-01
6.17E-02
3.96E-02
no benchmark
6.42E-03
4.20E-04
7.88E-02
8.78E-02
1.85E-01
7.56E-01
no benchmark
no benchmark
2.32E-02
no benchmark
5.91E-03
1.45E-01
2.84E-01
5.64E-03
2.57E-02
no benchmark
9.67E-02
no benchmark
no benchmark
no benchmark
8.74E-02
6.20E-02
4.25E-02
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
8.61E-02
no benchmark
3.87E-03
no benchmark
no benchmark
8.10E-02
no benchmark
3.15E-05
2.04E-03
1.91E-02
no benchmark
no benchmark
2.71E-01
3.23E-03
2.46E-04
6.59E-03
4.01E-02
no benchmark
no benchmark
3.36E-03
1.22E+00
no benchmark
COPC SELECTION STEPS
Does
compound
have a
TRY?
yes
yes
yes
no
yes
yes
yes
no
yes
yes
yes
yes
yes
yes
no
no
yes
no
yes
yes
yes
yes
yes
no
yes
no
no
no
yes
yes
yes
no
no
no
no
no
yes
no
yes
no
no
yes
no
yes
yes
yes
no
no
yes
yes
yes
yes
yes
no
no
yes
yes
no
Is
compound
detected?
yes
yes
yes
na
yes
yes
no
na
no
no
no
no
no
no
na
na
yes
na
no
no
yes
yes
no
na
no
na
na
na
no
no
no
na
na
na
na
na
no
na
no
na
na
yes
na
yes
yes
yes
na
na
no
yes
yes
no
yes
na
na
no
yes
na
Is Max
Detect >
TRY?
yes
no
no
na
no
no
na
na
na
na
na
na
na
na
na
na
yes
na
na
na
no
no
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
yes
na
yes
yes
yes
na
na
na
yes
yes
na
no
na
na
na
no
na
Is Mean DL
>TRV?
na
na
na
na
na
na
no
na
no
yes
no
no
no
no
na
na
na
na
no
no
na
na
no
na
no
na
na
na
no
no
no
na
na
na
na
na
no
na
no
na
na
na
na
na
na
na
na
na
no
na
na
no
na
na
na
no
na
na
SEDIMENT COPCs
QUANT
COPC
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
1
1
1
0
0
0
1
1
0
0
0
0
0
0
0
QUAL
COPC
Typel
0
0
0
1
0
0
0
1
0
0
0
0
0
0
1
1
0
1
0
0
0
0
0
1
0
1
1
1
0
0
0
1
1
1
1
1
0
1
0
1
1
0
1
0
0
0
1
1
0
0
0
0
0
1
1
0
0
1
QUAL
COPC
Type 2
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Not a
COPC
0
1
1
0
1
1
1
0
1
0
1
1
1
1
0
0
0
0
1
1
1
1
1
0
1
0
0
0
1
1
1
0
0
0
0
0
1
0
1
0
0
0
0
0
0
0
0
0
1
0
0
1
1
0
0
1
1
0
COPCScreen_ Aquatic Sed.xls: SedScreen
1/13/2003
                                                                                                                                                                                                          Page 3 of 4

-------
                                                                           Appendix D-2 Aquatic Receptor COPC Screen for Sediment

                                                                                    Ecological Risk Assessment for Ogden, Utah
Group
1
>
Analyte
cis-l,3-Dichloropropene
Dibromomethane
Dichlorodifluoromethane
Dichloromethane
Ethyl Methacrylate
Ethylbenzene
Ethylene dibromide (EDB)
Hexane
lodomethane
Isobutyl Alcohol
Isopropylbenzene
Methacrylonitrile
Methyl ethyl ketone (MEK)
Methyl isobutyl ketone (MIBK)
Methyl Metharcylate
Methyl-t-butyl ether (MTBE)
n-Butylbenzene
n-Propylbenzene
o-Xylene
sec-Butylbenzene
Styrene
tert-Butylbenzene
Tetrachloroethene
Toluene
trans- 1,2-Dichloroethene
trans- l,3-E)ichloropropene
trans-l,4-Dichloro-2-Butene
Trichloroethene
Trichlorofluoromethane
Vinyl Acetate
Vinyl Chloride
Xylenes (Total)
Xylenes-p,m
CAS#
10061-01-5
74-95-3
75-71-8
75-09-2
97-63-2
100-41-4
106-93-4
110-54-3
74-88-4
78-83-1
98-82-8
126-98-7
78-93-3
108-10-1
80-62-6
1634-04-4
104-51-8
103-65-1
95-47-6
135-98-8
100-42-5
98-06-6
127-18-4
108-88-3
156-60-5
10061-02-6
110-57-6
79-01-6
75-69-4
108-05-4
75-01-4
1330-20-7
179601-23-1
DATA
Number of
Detections
0
0
14
34
0
4
0
0
0
0
4
0
20
1
0
1
0
1
1
1
0
0
0
29
0
0
0
0
0
0
0
5
1
Number of
Samples
83
35
35
68
20
68
68
33
20
22
30
53
49
68
20
15
15
15
15
15
68
15
68
68
48
68
20
68
68
53
68
53
15
Detection
Frequency
(DF)
0%
0%
40%
50%
0%
6%
0%
0%
0%
0%
13%
0%
41%
1%
0%
7%
0%
7%
7%
7%
0%
0%
0%
43%
0%
0%
0%
0%
0%
0%
0%
9%
7%
Mean Non-
Detected
Cone
(mg/kg)
2.68E-06
3.29E-06
4.83E-06
2.45E-06
2.50E-05
3.00E-06
3.90E-06
4.32E-06
5.00E-06
4.90E-05
1.01E-06
7.21E-06
4.98E-06
6.08E-06
5.00E-06
1.03E-06
l.OOE-06
1.02E-06
1.02E-06
1.02E-06
3.05E-06
l.OOE-06
3.05E-06
3.62E-06
3.81E-06
3.05E-06
5.00E-06
3.05E-06
4.99E-06
4.73E-06
5.84E-06
9.49E-06
1.02E-06
Maximum
Detected Cone
(mg/kg)
na
na
1.61E-02
1.30E-02
na
2.70E-01
na
na
na
na
3.96E-02
na
6.00E-02
6.40E-03
na
2.10E-03
na
2.41E-02
8.05E-02
3.26E-03
na
na
na
1.90E+00
na
na
na
na
na
na
na
1.30E-01
5.12E-02

Sediment
Benchmark
(mg/kg)
no benchmark
no benchmark
no benchmark
1.85E-01
no benchmark
5.48E-03
no benchmark
2.59E-04
no benchmark
no benchmark
no benchmark
no benchmark
2.18E-01
9.69E-03
no benchmark
no benchmark
no benchmark
no benchmark
5.03E-03
no benchmark
1.99E-01
no benchmark
1.07E-01
2.79E-03
no benchmark
no benchmark
no benchmark
1.47E-02
no benchmark
9.12E-04
no benchmark
5.03E-03
1.40E-03
COPC SELECTION STEPS
Does
compound
have a
TRV?
no
no
no
yes
no
yes
no
yes
no
no
no
no
yes
yes
no
no
no
no
yes
no
yes
no
yes
yes
no
no
no
yes
no
yes
no
yes
yes
Is
compound
detected?
na
na
na
yes
na
yes
na
no
na
na
na
na
yes
yes
na
na
na
na
yes
na
no
na
no
yes
na
na
na
no
na
no
na
yes
yes
Is Max
Detect >
TRV?
na
na
na
no
na
yes
na
na
na
na
na
na
no
no
na
na
na
na
yes
na
na
na
na
yes
na
na
na
na
na
na
na
yes
yes
Is Mean DL
>TRV?
na
na
na
na
na
na
na
no
na
na
na
na
na
na
na
na
na
na
na
na
no
na
no
na
na
na
na
no
na
no
na
na
na
SEDIMENT COPCs
QUANT
COPC
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
1
0
0
0
0
0
0
0
1
1
QUAL
COPC
Typel
1
1
1
0
1
0
1
0
1
1
1
1
0
0
1
1
1
1
0
1
0
1
0
0
1
1
1
0
1
0
1
0
0
QUAL
COPC
Type 2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Not a
COPC
0
0
0
1
0
0
0
1
0
0
0
0
1
1
0
0
0
0
0
0
1
0
1
0
0
0
0
1
0
1
0
0
0
COPCScreen_ Aquatic Sed.xls: SedScreen
1/13/2003
                                                                                                                                                                                                          Page 4 of 4

-------
                                                   Appendix D-3  COPC Screen for Surface Soil for Terrestrial Receptors from Direct Contact

                                                                            Ecological Risk Assessment for Ogden, Utah
Group
Metals
Pesticides

Analyte
Aluminum
Antimony
Arsenic
Barium
Beryllium
Cadmium
Calcium
Chromium
Cobalt
Copper
Iron
Lead
Magnesium
Manganese
Mercury
Nickel
Potassium
Selenium
Silver
Sodium
Thallium
Vanadium
Zinc
4,4'-DDD
4,4'-DDE
4,4'-DDT
Aldrin
alpha-BHC
alpha-Chlordane
beta-BHC
Chlordane
delta-BHC
Dieldrm
Endosulfan I
Endosulfan II
Endosulfan Sulfate
Endrin
Endrin Aldehyde
Endrin ketone
gamma-BHC (Lindane)
gamma-Chlordane
Heptachlor
Heptachlor Epoxide
Isodrin
Kepone
Methoxychlor
Toxaphene
2-Chloronaphthalene
2-Methylnaphthalene
Acenaphthene
CAS#
7429-90-5
7440-36-0
7440-38-2
7440-39-3
7440-41-7
7440-43-9
7440-70-2
7440-47-3
7440-48-4
7440-50-8
7439-89-6
7439-92-1
7439-95-4
7439-96-5
7439.97-6
7440-02-0
7440-09-7
7782-49-2
7440-22-4
7440-23-5
7440-28-0
7440-62-2
7440-66-6
72-54-8
72-55-9
50-29-3
309-00-2
319-84-6
5103-71-9
319-85-7
57-74-9
319-86-8
60-57-1
959-98-8
33213-65-9
1031-07-8
72-20-8
7421-93-4
53494-70-5
58-89-9
12789-03-6
76-44-8
1024-57-3
465-73-6
143-50-0
72-43-5
8001-35-2
91-58-7
91-57-6
83-32-9
DATA
Number of
Detections
44
9
48
54
37
47
44
60
43
44
44
60
44
44
58
44
44
15
18
44
0
44
44
0
1
4
0
0
0
0
0
0
0
0
0
0
0
3
0
0
3
0
0
0
0
0
0
0
9
2
Number of
Samples
44
44
60
60
44
60
44
60
44
44
44
60
44
44
65
44
44
60
60
44
44
44
44
22
22
22
22
22
16
22
6
22
22
22
22
22
22
22
16
22
16
22
22
6
6
22
22
72
73
73
Detection
Frequency
(DF)
100%
20%
80%
90%
84%
78%
100%
100%
98%
100%
100%
100%
100%
100%
89%
100%
100%
25%
30%
100%
0%
100%
100%
0%
5%
18%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
14%
0%
0%
19%
0%
0%
0%
0%
0%
0%
0%
12%
3%
Mean Non-
Detected
Cone
(mg/kg)
na
1 .09E-03
3.19E-03
3.81E-02
2.39E-04
8.08E-05
na
na
1 .35E-03
na
na
na
na
na
1 .89E-05
na
na
1.01E-03
1 .44E-04
na
7.38E-04
na
na
3.63E-06
3.71E-06
3.99E-06
2.28E-06
2.28E-06
1 .63E-06
2.28E-06
4.00E-05
2.28E-06
3.63E-06
2.28E-06
3.63E-06
3.63E-06
3.63E-06
3.87E-06
1 .99E-06
2.28E-06
1.76E-06
2.28E-06
2.28E-06
4.00E-06
8.00E-06
1 .46E-05
7.20E-05
3.15E-04
3.20E-04
3.07E-04
Maximum
Detected Cone
(mg/kg)
1.30E+04
8.00E+00
2.40E+01
2.58E+02
9.30E-01
7.70E+00
3.78E+04
1.96E+01
7.50E+00
1.04E+02
1.60E+04
9.40E+02
l.OOE+04
6.30E+02
3.60E+00
1.90E+01
3.29E+03
1.10E+00
4.30E+00
9.30E+02
na
2.25E+01
9.40E+02
na
1.80E-03
1.50E-02
na
na
na
na
na
na
na
na
na
na
na
9.80E-03
na
na
5.10E-03
na
na
na
na
na
na
na
2.00E-01
3.10E-01

Terrestrial Soil
Benchmark
(mg/kg)
5.00E+01
3.00E+00
1 .OOE+01
1 .60E+02
1.10E+00
8.00E-01
no benchmark
4.00E-01
9.00E+00
3.60E+01
2.00E+02
5.00E+01
no benchmark
1 .OOE+02
1 .OOE-01
3.00E+01
no benchmark
7. OOE-01
2.00E+00
no benchmark
1 .OOE+00
2.00E+00
5.00E+01
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
3.00E-05
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
7.00E-04
2.00E-07
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
2.00E+01
COPC SELECTION STEPS
Does
compound
have a
TRY?
yes
yes
yes
yes
yes
yes
no
yes
yes
yes
yes
yes
no
yes
yes
yes
no
yes
yes
no
yes
yes
yes
no
no
no
no
no
no
no
yes
no
no
no
no
no
no
no
no
no
no
yes
yes
no
no
no
no
no
no
yes
Is
compound
detected?
yes
yes
yes
yes
yes
yes
na
yes
yes
yes
yes
yes
na
yes
yes
yes
na
yes
yes
na
no
yes
yes
na
na
na
na
na
na
na
no
na
na
na
na
na
na
na
na
na
na
no
no
na
na
na
na
na
na
yes
Is Max
Detect >
TRY?
yes
yes
yes
yes
no
yes
na
yes
no
yes
yes
yes
na
yes
yes
no
na
yes
yes
na
na
yes
yes
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
no
Is Mean DL
> TRY?
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
no
na
na
na
na
na
na
na
na
na
yes
na
na
na
na
na
na
na
na
na
na
no
yes
na
na
na
na
na
na
na
SURFACE SOIL COPCs
QUANT
COPC
1
1
1
1
0
1
0
1
0
1
1
1
0
1
1
0
0
1
1
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
QUAL
COPC
Typel
0
o
o
0
0
0
1
0
0
0
o
o
1
0
0
0
1
0
o
1
0
0
0
1
1
1
1
1
1
1
0
1
1
1
1
1
1
1
1
1
1
0
o
1
1
1
1
1
1
0
QUAL
COPC
Type 2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
Not a
COPC
0
0
0
0
1
0
o
0
1
0
0
0
0
0
0
1
0
0
0
0
1
0
o
o
0
0
0
0
0
0
o
o
0
0
0
0
0
0
o
0
0
1
0
0
0
0
0
o
0
1
COPCScreen_Terrestrial Soil.xls: SurfSoilScreen
1/13/2003

-------
                                                   Appendix D-3  COPC Screen for Surface Soil for Terrestrial Receptors from Direct Contact

                                                                            Ecological Risk Assessment for Ogden, Utah
Group
Polycyclic Aromatic Hydrocarbons (PAHs)
Polychlorinated
Biphenyls (PCBs)

Analyte
Acenaphthylene
Aniline
Anthracene
Benzo[a]anthracene
Benzo[a]pyrene
Benzo[b]fluoranthene
Benzo[g,h,i]perylene
Benzo[k]fluoranthene
Chrysene
Dibenz[a,h]anthracene
Dibenzofuran
Fluoranthene
Fluorene
Indeno[l ,2,3-c,d]pyrene
Naphthalene
Phenanthrene
Pyrene
Aroclor-1016
Aroclor-1221
Aroclor-1 232
Aroclor-1 242
Aroclor-1 248
Aroclor-1 254
Aroclor-1 260
Aroclor-1 268
1 ,2,4-Tnchlorobenzene
1 ,2-Dichlorobenzene
1 ,3-Dichlorobenzene
1 ,4-Dichlorobenzene
1 -Methylnaphthalene
2,2'-oxybis(l -Chloropropane)
2,4,5-Trichlorophenol
2,4,6-Trichlorophenol
2,4-Dichlorophenol
2,4-Dimethylphenol
2, 4-D initrophenol
2, 4-D initrotoluene
2,6-Dinitrotoluene
2-Chlorophenol
2-Methylphenol (o-Cresol)
2-Nitroaniline
2-Nitrophenol
3,3'-Dichlorobenzidine
3-Nitroaniline
4,6-Dinitro-o-cresol
4-Bromophenyl-phenyl ether
4-Chloro-3-Methylphenol
4-Chloroaniline
4-Chlorophenyl-phenylether
4-Methylphenol (p-Cresol)
CAS#
208-96-8
62-53-3
120-12-7
56-55-3
50-32-8
205-99-2
191-24-2
207-08-9
218-01-9
53-70-3
132-64-9
206-44-0
86-73-7
193-39-5
91-20-3
85-01-8
129-00-0
12674-11-2
11104-28-2
11141-16-5
53469-21-9
12672-29-6
11097-69-1
11096-82-5
11100-14-4
120-82-1
95-50-1
541-73-1
106-46-7
90-12-0
108-60-1
95-95-4
88-06-2
120-83-2
105-67-9
51-28-5
121-14-2
606-20-2
95-57-8
95-48-7
88-74-4
88-75-5
91-94-1
99-09-2
534-52-1
101-55-3
59-50-7
106-47-8
7005-72-3
106-44-5
DATA
Number of
Detections
2
0
5
8
7
11
14
6
13
3
1
15
0
9
14
17
27
0
0
0
0
0
0
6
0
0
0
0
0
5
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
1
Number of
Samples
73
48
73
73
73
73
73
73
73
73
72
73
73
73
83
73
73
22
22
22
22
22
22
22
10
83
83
82
83
47
26
72
72
72
72
72
73
73
72
72
72
72
73
72
72
10
72
72
72
72
Detection
Frequency
(DF)
3%
0%
7%
11%
10%
15%
19%
8%
18%
4%
1%
21%
3%
12%
17%
23%
37%
0%
0%
0%
0%
0%
0%
27%
0%
0%
0%
0%
0%
11%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
1%
0%
0%
0%
0%
0%
0%
1%
Mean Non-
Detected
Cone
(mg/kg)
3.07E-04
2.16E-04
3.13E-04
3.19E-04
3.17E-04
3.27E-04
3.10E-04
3.14E-04
3.31E-04
3.19E-04
3.17E-04
3.37E-04
3.07E-04
3.21E-04
2.83E-04
3.41E-04
3.72E-04
2.77E-05
4.47E-05
2.77E-05
2.77E-05
2.77E-05
2.77E-05
2.99E-05
2.52E-05
2.76E-04
2.76E-04
2.77E-04
2.76E-04
2.03E-04
4.88E-04
3.67E-04
3.15E-04
3.15E-04
3.15E-04
9.15E-04
3.13E-04
3.13E-04
3.15E-04
3.15E-04
9.15E-04
3.15E-04
3.18E-04
9.15E-04
9.15E-04
1.01E-03
3.15E-04
3.15E-04
3.15E-04
3.17E-04
Maximum
Detected Cone
(mg/kg)
4.00E-01
na
7.10E-01
1.40E+00
1.60E+00
1.20E+00
1.60E+00
1.60E+00
2.10E+00
9.60E-02
4.50E-02
2.30E+00
2.20E-01
1.50E+00
2.70E-01
2.30E+00
3.70E+00
na
na
na
na
na
na
5.50E-01
na
na
na
na
na
2.30E-01
na
na
na
na
na
na
na
na
na
na
na
na
4.30E-02
na
na
na
na
na
na
1.10E-01

Terrestrial Soil
Benchmark
(mg/kg)
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
3.00E+01
no benchmark
no benchmark
no benchmark
no benchmark
2.00E-02
2.00E-02
2.00E-02
2.00E-02
2.00E-02
2.00E-02
2.00E-02
2.00E-02
2.00E+01
no benchmark
no benchmark
2.00E+01
no benchmark
no benchmark
4.00E+00
1 .OOE+01
no benchmark
no benchmark
2.00E+01
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
5.00E-03
no benchmark
no benchmark
COPC SELECTION STEPS
Does
compound
have a
TRY?
no
no
no
no
no
no
no
no
no
no
no
no
yes
no
no
no
no
yes
yes
yes
yes
yes
yes
yes
yes
yes
no
no
yes
no
no
yes
yes
no
no
yes
no
no
no
no
no
no
no
no
no
no
no
yes
no
no
Is
compound
detected?
na
na
na
na
na
na
na
na
na
na
na
na
yes
na
na
na
na
no
no
no
no
no
no
yes
no
no
na
na
no
na
na
no
no
na
na
no
na
na
na
na
na
na
na
na
na
na
na
no
na
na
Is Max
Detect >
TRY?
na
na
na
na
na
na
na
na
na
na
na
na
no
na
na
na
na
na
na
na
na
na
na
yes
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
Is Mean DL
> TRY?
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
no
no
no
no
no
no
na
no
no
na
na
no
na
na
no
no
na
na
no
na
na
na
na
na
na
na
na
na
na
na
no
na
na
SURFACE SOIL COPCs
QUANT
COPC
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
QUAL
COPC
Typel
1
1
1
1
1
1
1
1
1
1
1
1
0
1
1
1
1
0
o
o
0
0
0
0
0
0
1
1
0
1
1
0
0
1
1
o
1
1
1
1
1
1
1
1
1
1
1
0
1
1
QUAL
COPC
Type 2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Not a
COPC
0
0
0
0
0
0
o
0
0
0
0
0
1
0
0
o
0
1
1
1
1
1
1
o
1
1
0
0
1
0
o
1
1
0
0
1
0
0
o
0
0
0
0
0
0
0
0
1
0
0
COPCScreen_Terrestrial Soil.xls: SurfSoilScreen
1/13/2003

-------
                                                   Appendix D-3  COPC Screen for Surface Soil for Terrestrial Receptors from Direct Contact

                                                                            Ecological Risk Assessment for Ogden, Utah
Group


Analyte
4-Nitroaniline
4-Nitrophenol
Benzyl alcohol
bis(2-Chloroethoxy)methane
bis-(2-Chloroethyl)ether
bis(2-Chloroethyl)ether
bis(2-Chloroisopropyl)ether
bis(2-Ethylhexyl)phthalate
bis(n-octyl)phthalate
Butylbenzylphthalate
Carbazole
Dibutylphthalate
Diethylphthalate
Dimethylphthalate
Hexachlorobenzene
Hexachlorobutadiene
Hexachlorocyclopentadiene
Hexachloroethane
Isophorone
Nitrobenzene
N-Nitrosodiphenylamine
n-Nitrosodipropylamme
Pentachlorophenol (POP)
Phenol
1,1,1 ,2-Tetrachloroethane
1,1,1 -Tnchloroethane
1 , 1 ,2,2-Tetrachloroethane
1 , 1 ,2-Trichloroethane
1 , 1 -D ichloroethane
1 , 1 -D ichloroethene
1 , 1 -Dichloropropene
1 ,2,3-Trichlorobenzene
1 ,2,3-Trichloropropane
1 ,2,4-Trimethylbenzene
1 ,2-Dibromo-3-chloropropane (DBCP)
1 ,2-D ichloroethane
1 ,2-D ichloroethene
1 ,2-Dichloropropane
1 ,3,5-Trimethylbenzene
1 ,3-Dichloropropane
1,4-Dioxane
2, 2-D ichloropropane
2-Chloro-l ,3-butadiene (Chloroprene)
2-Chloroethyl vinyl ether
2-Chlorotoluene
2-Hexanone
3-Chloropropene (Allyl Chloride)
4-Chlorotoluene
Acetone
Acetomtrile
CAS#
100-01-6
100-02-7
100-51-6
111-91-1
111-44-4
111-44-4
108-60-1
117-81-7
117-84-0
85-68-7
86-74-8
84-74-2
84-66-2
131-11-3
118-74-1
87-68-3
77-47-4
67-72-1
78-59-1
98-95-3
86-30-6
621-64-7
87-86-5
108-95-2
630-20-6
71-55-6
79-34-5
79-00-5
75-34-3
75-35-4
563-58-6
87-61-6
96-18-4
95-63-6
96-12-8
107-06-2
540-59-0
78-87-5
108-67-8
142-28-9
123-91-1
594-20-7
126-99-8
110-75-8
95-49-8
591-78-6
107-05-1
106-43-4
67-64-1
75-05-8
DATA
Number of
Detections
0
0
0
0
0
0
0
32
1
9
3
20
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4
0
Number of
Samples
72
72
10
72
73
73
26
73
73
73
73
73
73
72
73
83
72
73
72
73
72
73
72
72
25
70
70
70
70
10
10
10
70
10
70
70
60
70
10
10
15
10
15
60
10
70
15
10
70
60
Detection
Frequency
(DF)
0%
0%
0%
0%
0%
0%
0%
44%
1%
12%
4%
27%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
1%
0%
1%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
6%
0%
Mean Non-
Detected
Cone
(mg/kg)
9.15E-04
9.15E-04
1.01E-03
3.15E-04
3.13E-04
3.13E-04
4.88E-04
2.96E-04
3.15E-04
3.31E-04
3.09E-04
3.21E-04
3.13E-04
3.15E-04
3.13E-04
2.76E-04
3.15E-04
3.13E-04
3.15E-04
3.13E-04
3.15E-04
3.13E-04
9.15E-04
3.15E-04
3.33E-06
2.81E-06
2.82E-06
2.81E-06
2.82E-06
8.29E-07
8.29E-07
8.29E-07
3.35E-06
8.29E-07
3.35E-06
2.81E-06
5.67E-06
2.81E-06
8.29E-07
8.29E-07
1 .50E-04
8.29E-07
5.00E-06
3.78E-06
8.29E-07
5.63E-06
5.00E-06
8.29E-07
6.32E-06
1 .63E-05
Maximum
Detected Cone
(mg/kg)
na
na
na
na
na
na
na
1.50E+00
5.10E-02
2.80E-01
2.60E-01
2.20E-01
na
na
na
na
na
na
na
na
na
na
na
na
na
na
1.20E-03
na
6.40E-03
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
2.80E-02
na

Terrestrial Soil
Benchmark
(mg/kg)
no benchmark
7.00E+00
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
2.00E+02
1 .OOE+02
2.00E+02
1 .OOE+03
no benchmark
1 .OOE+01
no benchmark
no benchmark
4.00E+01
2.00E+01
no benchmark
3.00E+00
5.00E-02
no benchmark
7.00E-02
no benchmark
4.00E-01
2.00E-02
1 .OOE-01
no benchmark
2.00E+01
no benchmark
no benchmark
no benchmark
2.00E-02
2.00E-01
2.00E-03
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
COPC SELECTION STEPS
Does
compound
have a
TRY?
no
yes
no
no
no
no
no
no
no
no
no
yes
yes
yes
yes
no
yes
no
no
yes
yes
no
yes
yes
no
yes
no
yes
yes
yes
no
yes
no
no
no
yes
yes
yes
no
no
no
no
no
no
no
no
no
no
no
no
Is
compound
detected?
na
no
na
na
na
na
na
na
na
na
na
yes
no
no
no
na
no
na
na
no
no
na
no
no
na
no
na
no
yes
no
na
no
na
na
na
no
no
no
na
na
na
na
na
na
na
na
na
na
na
na
Is Max
Detect >
TRY?
na
na
na
na
na
na
na
na
na
na
na
no
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
no
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
Is Mean DL
> TRY?
na
no
na
na
na
na
na
na
na
na
na
na
no
no
no
na
no
na
na
no
no
na
no
no
na
no
na
no
na
no
na
no
na
na
na
no
no
no
na
na
na
na
na
na
na
na
na
na
na
na
SURFACE SOIL COPCs
QUANT
COPC
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
QUAL
COPC
Typel
1
0
1
1
1
1
1
1
1
1
1
o
0
0
0
1
0
1
1
0
0
1
0
0
1
0
1
0
0
0
1
0
1
1
1
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
QUAL
COPC
Type 2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Not a
COPC
0
1
0
0
0
0
0
0
0
0
0
1
1
1
1
0
1
0
0
1
1
0
1
1
0
1
0
1
1
1
0
1
0
0
0
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
COPCScreen_Terrestrial Soil.xls: SurfSoilScreen
1/13/2003

-------
                                                   Appendix D-3  COPC Screen for Surface Soil for Terrestrial Receptors from Direct Contact

                                                                            Ecological Risk Assessment for Ogden, Utah
Group
Volatile Organic Compounds (VOCs)
Analyte
Acrolein
Acrylomtrile
Benzene
Bromobenzene
Bromodichlorom ethane
Bromoform
Bromomethane (Methyl bromide)
Carbon Bisulfide
Carbon Tetrachloride
Chlorobenzene
Chi orodibromom ethane
Chloroethane (Ethyl chloride)
Chloroform
Chloromethane (Methyl chloride)
cis-1 ,2-Dichloroethene
cis-1 ,3-Dichloropropene
Dibromomethane
Dichlorodifluorom ethane
Dichlorom ethane
Ethyl Methacrylate
Ethylbenzene
Ethylene dibromide (EDB)
Hexane
lodomethane
Isobutyl Alcohol
Isopropylbenzene
Methacrylomtrile
Methyl ethyl ketone (MEK)
Methyl isobutyl ketone (MTBK)
Methyl Metharcylate
Methyl-t-butyl ether (MTBE)
n-Butylbenzene
n-Propylbenzene
o-Xylene
sec-Butylbenzene
Styrene
tert-Butylbenzene
Tetrachloroethene
Toluene
trans-1 ,2-Dichloroethene
trans-1 ,3-Dichloropropene
trans-1 ,4-Dichloro-2-Butene
Tnchloroethene
Trichlorofluoromethane
Vinyl Acetate
Vinyl Chloride
Xylenes (Total)
Xylenes-p,m
CAS#
107-02-8
107-13-1
71-43-2
108-86-1
75-27-4
75-25-2
74-83-9
75-15-0
56-23-5
108-90-7
124-48-1
75-00-3
67-66-3
74-87-3
156-59-2
10061-01-5
74-95-3
75-71-8
75-09-2
97-63-2
100-41-4
106-93-4
110-54-3
74-88-4
78-83-1
98-82-8
126-98-7
78-93-3
108-10-1
80-62-6
1634-04-4
104-51-8
103-65-1
95-47-6
135-98-8
100-42-5
98-06-6
127-18-4
108-88-3
156-60-5
10061-02-6
110-57-6
79-01-6
75-69-4
108-05-4
75-01-4
1330-20-7
179601-23-1
DATA
Number of
Detections
0
0
2
0
0
0
0
0
0
0
0
0
1
0
0
0
0
1
22
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
2
0
0
0
0
1
0
0
1
0
Number of
Samples
46
60
70
10
70
70
70
70
70
70
70
70
70
70
45
80
25
25
70
15
70
70
45
15
15
20
60
27
70
15
10
10
10
10
10
70
10
70
70
55
70
15
70
70
60
70
60
10
Detection
Frequency
(DF)
0%
0%
3%
0%
0%
0%
0%
0%
0%
0%
0%
0%
1%
0%
0%
0%
0%
4%
31%
0%
1%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
3%
3%
0%
0%
0%
0%
1%
0%
0%
2%
0%
Mean Non-
Detected
Cone
(mg/kg)
2.54E-05
1 .64E-05
2.81E-06
8.29E-07
2.81E-06
2.81E-06
5.62E-06
2.81E-06
2.81E-06
2.81E-06
2.81E-06
5.51E-06
2.84E-06
5.51E-06
3.40E-06
2.56E-06
3.33E-06
3.44E-06
2.13E-06
2.50E-05
2.82E-06
3.35E-06
3.32E-06
5.00E-06
5.00E-05
8.29E-07
6.29E-06
4.38E-06
5.63E-06
5.00E-06
8.29E-07
8.29E-07
8.29E-07
8.29E-07
8.29E-07
2.81E-06
8.29E-07
2.82E-06
2.81E-06
2.98E-06
2.81E-06
5.00E-06
2.81E-06
4.98E-06
3.81E-06
5.51E-06
8.30E-06
8.29E-07
Maximum
Detected Cone
(mg/kg)
na
na
1.20E-03
na
na
na
na
na
na
na
na
na
l.OOE-03
na
na
na
na
2.20E-03
7.80E-03
na
2.40E-03
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
6.80E-03
2.00E-03
na
na
na
na
3.00E-03
na
na
1.30E-02
na

Terrestrial Soil
Benchmark
(mg/kg)
no benchmark
7.00E-06
1 .OOE-02
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
4.00E-01
4.00E+01
no benchmark
no benchmark
2.00E-02
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
4.00E-01
no benchmark
3.00E-02
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
3.00E-01
no benchmark
2.00E-03
1 .OOE-02
no benchmark
no benchmark
1 .OOE+03
1 .OOE-01
no benchmark
no benchmark
1 .OOE-02
1 .OOE-01
no benchmark
COPC SELECTION STEPS
Does
compound
have a
TRV?
no
yes
yes
no
no
no
no
no
yes
yes
no
no
yes
no
no
no
no
no
yes
no
yes
no
no
no
no
no
no
no
no
no
no
no
no
no
no
yes
no
yes
yes
no
no
yes
yes
no
no
yes
yes
no
Is
compound
detected?
na
no
yes
na
na
na
na
na
no
no
na
na
yes
na
na
na
na
na
yes
na
yes
na
na
na
na
na
na
na
na
na
na
na
na
na
na
no
na
yes
yes
na
na
no
no
na
na
no
yes
na
Is Max
Detect >
TRV?
na
na
no
na
na
na
na
na
na
na
na
na
no
na
na
na
na
na
no
na
no
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
yes
no
na
na
na
na
na
na
na
no
na
Is Mean DL
> TRV?
na
yes
na
na
na
na
na
na
no
no
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
no
na
na
na
na
na
no
no
na
na
no
na
na
SURFACE SOIL COPCs
QUANT
COPC
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
QUAL
COPC
Typel
1
0
o
1
1
1
1
1
0
0
1
1
0
1
1
1
1
1
o
1
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
o
1
0
0
1
1
0
o
1
1
0
0
1
QUAL
COPC
Type 2
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Not a
COPC
0
0
1
0
0
0
o
0
1
1
0
0
1
0
0
o
0
0
1
0
1
0
o
o
0
0
0
0
0
0
o
o
0
0
0
1
0
0
1
0
0
1
1
0
0
1
1
o
COPCScreen_Terrestrial Soil.xls: SurfSoilScreen
1/13/2003

-------
                                                                        Appendix D-4 Wildlife Receptor COPC Screen for Surface Water

                                                                                   Ecological Risk Assessment for Ogden, Utah
Group
Metals
1
Irocarbons (PAHs)
c Aromatic Hy
Analyte
AluminuiT
Antimony
Arsenic
Barium
Berylliurr
Cadmium
Calcium
Chromium
Cobalt
Copper
Iron
Lead
Magnesium
Manganese
Mercury
Nickel
Potassium
Selenium
Silver
Sodium
Thalliurr
Vanadium
Zinc
4,4'-DDD
4,4'-DDE
4,4-DDT
Aldrin
alpha-BHC
beta-BHC
Chlordane
delta-BHC
Dieldrin
Endosulfan I
Endosulfan II
Endosulfan Sulfate
Endrin
Endrin Aldehyde
gamma-BHC (LindaneJ
Heptachlor
Heptachlor Epoxide
Isodrin
Kepone
Methoxychlor
Toxaphene
2-Chloronaphthalene
2-Methylnaphthalent
Acenaphthene
Acenaphthylene
Aniline
Anthracene
Benzo[a]anthracene
Benzo[a]pyrene
Benzo[b]fluoranthene
Benzo[g,h,i]perylene
Benzo[k]nuoranthene
Chrysene
Dibenz[a,h]anthracene
Dibenzofuran
CAS#
7429-90-5
7440-36-0
7440-38-2
7440-39-3
7440-41-7
7440-43-9
7440-70-2
7440-47-3
7440-48-4
7440-50-8
7439-89-6
7439-92-1
7439-95-4
7439-96-5
7439-97-6
7440-02-0
7440-09-7
7782-49-2
7440-22-4
7440-23-5
7440-28-0
7440-62-2
7440-66-6
72-54-8
72-55-9
50-29-3
309-00-2
319-84-6
319-85-7
57-74-9
319-86-8
60-57-1
959-98-8
33213-65-9
1031-07-8
72-20-8
7421-93-4
58-89-9
76-44-8
1024-57-3
465-73-6
143-50-0
72-43-5
8001-35-2
91-58-7
91-57-6
83-32-9
208-96-8
62-53-3
120-12-7
56-55-3
50-32-8
205-99-2
191-24-2
207-08-9
218-01-9
53-70-3
132-64-9
DATA
Number of
Detections
33
1
10
67
0
19
50
19
0
21
35
22
50
49
2
21
49
3
11
50
0
1
5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
8
3
0
2
2
2
1
0
2
2
0
0
Number of
Samples
50
50
67
67
50
67
50
67
50
50
50
67
50
50
67
50
50
67
57
50
50
50
50
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
38
74
77
77
36
77
77
77
77
77
77
77
77
38
Detection
Frequency
(DF)
66%
2%
15%
100%
0%
28%
100%
28%
0%
42%
70%
33%
100%
98%
3%
42%
98%
4%
19%
100%
0%
2%
10%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
3%
10%
4%
0%
3%
3%
3%
1%
0%
3%
3%
0%
0%
Mean Non-
Detected
Cone
(mg/L)
2.10E-01
1.11E-02
5.55E-03
na
1.22E-03
1.69E-03
na
4.33E-03
3.15E-03
5.00E-03
2.00E-01
2.76E-03
na
1.50E-02
7.47E-04
8.45E-03
l.OOE+00
7.56E-03
3.53E-03
na
8.24E-03
3.86E-03
9.27E-03
5.00E-05
5.00E-05
5.00E-05
2.50E-05
2.50E-05
2.50E-05
2.50E-04
2.50E-05
5.00E-05
2.50E-05
5.00E-05
5.00E-05
5.00E-05
5.00E-05
2.50E-05
2.50E-05
2.50E-05
2.50E-05
5.00E-05
2.50E-04
5.00E-04
5.00E-03
3.08E-03
3.11E-03
2.82E-03
9.44E-04
3.03E-03
3.03E-03
2.98E-03
3.00E-03
2.99E-03
3.03E-03
2.98E-03
2.99E-03
5.00E-03
Maximum
Detected
Cone fmg/L)
1.85E+00
3.40E-03
3.10E-03
1.30E-01
na
2.90E-03
7.11E+01
7.40E-03
na
7.40E-03
2.11E+00
2.69E-02
1.94E+01
1.12E-01
9.70E-04
2.03E-01
2.26E+01
5.20E-03
1.40E-03
5.64E+01
na
5.10E-03
2.82E+00
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
2.10E-01
1.60E-01
l.OOE-02
na
1.60E-02
4.00E-04
l.OOE-04
l.OOE-04
na
2.00E-04
7.00E-04
na
na

Wildlife Surface
Water Benchmark
(mg/L)
8.11E+00
5.25E-01
5.30E-01
4.18E+01
5.13E+00
7.49E+00
no benchmark
7.26E+00
no benchmark
1.18E+02
no benchmark
8.21E+00
no benchmark
6.84E+02
4.60E-02
3.11E+02
no benchmark
1.55E+00
no benchmark
no benchmark
5.80E-02
1.52E+00
1.05E+02
2.00E-02
2.00E-02
2.00E-02
1.55E+00
1.40E-01
3.11E+00
1.55E+01
1.40E-01
1.15E-01
1.17E+00
1.17E+00
1.17E+00
7.30E-02
no benchmark
1.45E+01
1.01E+00
no benchmark
no benchmark
6.22E-01
3.11E+01
6.22E+01
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
4.20E+00
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
COPC SELECTION STEPS
Does compound
have a TRY?
yes
yes
yes
yes
yes
yes
no
yes
no
yes
no
yes
no
yes
yes
yes
no
yes
no
no
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
no
yes
yes
no
no
yes
yes
yes
no
no
no
no
no
no
no
yes
no
no
no
no
no
no
Is compound
detected?
yes
yes
yes
yes
no
yes
na
yes
na
yes
na
yes
na
yes
yes
yes
na
yes
na
na
no
yes
yes
no
no
no
no
no
no
no
no
no
no
no
no
no
na
no
no
na
na
no
no
no
na
na
na
na
na
na
na
yes
na
na
na
na
na
na
Is Max Detect
>TRV?
no
no
no
no
na
no
na
no
na
no
na
no
na
no
no
no
na
no
na
na
na
no
no
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
no
na
na
na
na
na
na
Is Mean DL
>TRV?
na
na
na
na
no
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
no
na
na
no
no
no
no
no
no
no
no
no
no
no
no
no
na
no
no
na
na
no
no
no
na
na
na
na
na
na
na
na
na
na
na
na
na
na
SURFACE WATER COPCs
QUANT
COPC
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
QUAL
COPC
Typel
0
0
0
0
0
0
1
0
1
0
1
0
1
0
0
0
1
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
1
1
0
0
0
1
1
1
1
1
1
1
0
1
1
1
1
1
1
QUAL
COPC
Type 2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Not a
COPC
1
1
1
1
1
1
0
1
0
1
0
1
0
1
1
1
0
1
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
1
1
0
0
1
1
1
0
0
0
0
0
0
0
1
0
0
0
0
0
0
COPCScreen_Wildlife SW.xls: SWScreen
1/13/2003
                                                                                                                                                                                                            Pagel of 4

-------
                                                                        Appendix D-4 Wildlife Receptor COPC Screen for Surface Water

                                                                                   Ecological Risk Assessment for Ogden, Utah
Group
1
s.
— ^
Polychlorinate
Biphenyls (PCB
Petroleum
Hydro-
carbons
ic Compounds (SVOCs)
&
o
1
>
..i,
B
x
Analyte
Fluoranthene
Fluorene
Indeno[l,2,3-c,d]pyrene
Naphthalene
Phenanthrene
Pyrene
Aroclor-1016
Aroclor-1221
Aroclor-1232
Aroclor-1242
Aroclor-1248
Aroclor-1254
Aroclor-1260
Diesel fuel
Total Petroleum Hydrocarbons (TPH)
1 ,2,4-Trichlorobenzene
1 ,2-Dichlorobenzene
1 ,3-Dichlorobenzene
1 ,4-Dichlorobenzene
1 -Methylnaphthalent
2,4,5-Trichlorophenol
2,4,6-Trichlorophenol
2,4-Dichlorophenol
2,4- Dimethylpheno]
2,4-Dinitrophenol
2,4-Dinitrotoluene
2,6-Dinitrotoluene
2-Chlorophenol
2-Methylphenol (o-Cresol)
2-Nitroaniline
2-Nitrophenol
3,3'-Dichlorobenzidin£
3-Nitroaniline
4,6-Dinitro-o-cresol
4-Bromophenyl-phenylethe]
4-Chloro-3-Methylphenol
4-Chloroaniline
4-Chlorophenyl-phenylethe]
4-Methylphenol (p-CresoP,
4-Nitroaniline
4-Nitrophenol
Benzyl alcohol
bis(2-Chloroethoxy)methan£
bis(2-Chloroethyl)ethei
bis(2-Chloroisopropyl)ether
bis(2-Ethylhexyl)phthalati
bis(n-octyl)phthalate
Butylbenzylphthalats
Carbazole
Dibutylphthalate
Diethylphthalate
Dimethylphthalate
Hexachlorobenzene
Hexachlorobutadiene
Hexachlorocyclopentadient
CAS#
206-44-0
86-73-7
193-39-5
91-20-3
85-01-8
129-00-0
12674-11-2
11104-28-2
11141-16-5
53469-21-9
12672-29-6
11097-69-1
11096-82-5
68476-34-6
TPH
120-82-1
95-50-1
541-73-1
106-46-7
90-12-0
95-95-4
88-06-2
120-83-2
105-67-9
51-28-5
121-14-2
606-20-2
95-57-8
95-48-7
88-74-4
88-75-5
91-94-1
99-09-2
534-52-1
101-55-3
59-50-7
106-47-8
7005-72-3
106-44-5
100-01-6
100-02-7
100-51-6
111-91-1
111-44-4
108-60-1
117-81-7
117-84-0
85-68-7
86-74-8
84-74-2
84-66-2
131-11-3
118-74-1
87-68-3
77-47-4
DATA
Number of
Detections
6
2
1
4
4
5
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
1
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4
1
1
2
4
0
0
0
0
0
Number of
Samples
77
77
77
86
77
77
24
17
17
17
17
17
24
2
6
83
83
47
83
21
38
38
38
63
38
74
74
38
74
38
38
63
38
74
18
38
38
38
74
38
38
18
38
74
42
74
74
74
74
74
74
38
74
83
38
Detection
Frequency
(DF)
8%
3%
1%
5%
5%
6%
0%
0%
0%
0%
0%
0%
4%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
2%
0%
0%
1%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
5%
1%
1%
3%
5%
0%
0%
0%
0%
0%
Mean Non-
Detected
Cone
(mg/L)
3.14E-03
2.98E-03
2.99E-03
2.79E-03
3.03E-03
3.10E-03
1.77E-04
2.50E-04
2.50E-04
2.50E-04
2.50E-04
2.50E-04
1.85E-04
2.50E-01
5.00E-01
2.78E-03
2.77E-03
4.14E-03
2.78E-03
l.OOE-03
8.95E-03
5.00E-03
5.00E-03
3.26E-03
8.95E-03
3.01E-03
2.78E-03
5.00E-03
3.01E-03
8.95E-03
5.00E-03
3.43E-03
8.95E-03
7.03E-03
5.00E-03
5.00E-03
5.00E-03
5.00E-03
2.81E-03
8.95E-03
8.95E-03
5.00E-03
5.00E-03
3.01E-03
4.62E-03
2.57E-03
3.10E-03
2.88E-03
4.06E-03
2.69E-03
2.76E-03
5.00E-03
3.01E-03
2.78E-03
5.00E-03
Maximum
Detected
Cone fmg/L)
6.00E-03
6.20E-02
l.OOE-03
5.20E-01
8.40E-02
l.OOE-02
na
na
na
na
na
na
1.50E-06
na
na
na
na
na
na
na
na
na
na
5.00E-04
na
na
1.70E-02
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
4.70E-03
2.00E-04
l.OOE-04
7.00E-03
5.70E-03
na
na
na
na
na

Wildlife Surface
Water Benchmark
(mg/L)
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
1.38E+01
no benchmark
no benchmark
6.97E-01
1.51E-01
3.04E-01
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
2.21E+03
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
7.99E+00
no benchmark
no benchmark
no benchmark
8.00E-01
1.92E+04
no benchmark
no benchmark
no benchmark
no benchmark
COPC SELECTION STEPS
Does compound
have a TRY?
no
no
no
no
no
no
yes
no
no
yes
yes
yes
no
no
no
no
no
no
no
no
no
no
no
no
no
no
no
no
no
no
no
no
no
no
no
no
no
no
yes
no
no
no
no
no
no
yes
no
no
no
yes
yes
no
no
no
no
Is compound
detected?
na
na
na
na
na
na
no
na
na
no
no
no
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
no
na
na
na
na
na
na
yes
na
na
na
yes
no
na
na
na
na
Is Max Detect
>TRV?
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
no
na
na
na
no
na
na
na
na
na
Is Mean DL
>TRV?
na
na
na
na
na
na
no
na
na
no
no
no
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
no
na
na
na
na
na
na
na
na
na
na
na
no
na
na
na
na
SURFACE WATER COPCs
QUANT
COPC
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
QUAL
COPC
Typel
1
1
1
1
1
1
0
1
1
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
1
1
1
1
1
1
0
1
1
1
0
0
1
1
1
1
QUAL
COPC
Type 2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Not a
COPC
0
0
0
0
0
0
1
0
0
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
1
0
0
0
1
1
0
0
0
0
COPCScreen_Wildlife SW.xls: SWScreen
1/13/2003
                                                                                                                                                                                                            Page 2 of 4

-------
                                                                        Appendix D-4 Wildlife Receptor COPC Screen for Surface Water

                                                                                   Ecological Risk Assessment for Ogden, Utah
Group

c Compounds (VOCs)
&
o
1
>
Analyte
Hexachloroethane
Isophorone
Nitrobenzene
N-Nitrosodiphenylamim
n-Nitrosodipropylamint
Pentachlorophenol (PCP)
Phenol
,1,1 ,2-Tetrachloroethane
,1,1 -Trichloroethane
,1,2,2-Tetrachloroethane
, 1 ,2-Trichloroethane
,1-Dichloroe thane
,1-Dichloroethene
, 1 -Dichloropropene
,2,3-Trichlorobenzene
,2,3-Trichloropropane
,2,4-Trimethylbenzene
,2-Dibromo-3-chloropropane (DBCP)
,2-Dichloroe thane
,2-Dichloroethene
,2-Dichloropropane
,3,5-Trimethylbenzene
,3-Dichloropropane
,4-Dioxane
2,2-Dichloropropane
2-Chloro-l,3-butadiene (Chloroprene)
2-Chloroethyl vinyl ethei
2-Chlorotoluene
2-Hexanone
3-Chloropropene (Allyl Chloride;
4-Chlorotoluene
Acetone
Acetonitrile
Acrolein
Acrylonitrik
Benzene
Bromobenzene
Bromodichloromethane
Bromoform
Bromomethane (Methyl bromide;
Carbon Disulfid£
Carbon Tetrachloride
Chlorobenzene
Chlorodibromomethane
Chloroethane (Ethyl chloride;
Chloroform
Chloromethane (Methyl chloride;
cis-l,2-Dichloroethene
cis-l,3-Dichloropropene
Dibromomethane
Dichlorodifluoromethant
Dichloromethane
Ethyl Methacrylate
Ethylbenzene
Ethylene dibromide (EDB;
Hexane
lodomethane
CAS#
67-72-1
78-59-1
98-95-3
86-30-6
621-64-7
87-86-5
108-95-2
630-20-6
71-55-6
79-34-5
79-00-5
75-34-3
75-35-4
563-58-6
87-61-6
96-18-4
95-63-6
96-12-8
107-06-2
540-59-0
78-87-5
108-67-8
142-28-9
123-91-1
594-20-7
126-99-8
110-75-8
95-49-8
591-78-6
107-05-1
106-43-4
67-64-1
75-05-8
107-02-8
107-13-1
71-43-2
108-86-1
75-27-4
75-25-2
74-83-9
75-15-0
56-23-5
108-90-7
124-48-1
75-00-3
67-66-3
74-87-3
156-59-2
10061-01-5
74-95-3
75-71-8
75-09-2
97-63-2
100-41-4
106-93-4
110-54-3
74-88-4
DATA
Number of
Detections
0
0
0
0
0
3
5
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
13
0
0
0
1
0
0
0
0
1
0
0
0
0
0
0
0
0
0
1
26
0
2
0
0
0
Number of
Samples
74
38
74
38
74
74
74
40
84
84
84
84
9
9
9
84
9
43
84
75
84
9
9
31
9
31
55
9
67
31
9
61
75
31
55
84
9
84
84
84
84
84
84
84
84
84
84
44
93
40
40
84
31
84
84
44
31
Detection
Frequency
(DF)
0%
0%
0%
0%
0%
4%
7%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
2%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
21%
0%
0%
0%
1%
0%
0%
0%
0%
1%
0%
0%
0%
0%
0%
0%
0%
0%
0%
3%
31%
0%
2%
0%
0%
0%
Mean Non-
Detected
Cone
(mg/L)
3.05E-03
5.00E-03
3.01E-03
5.00E-03
3.01E-03
5.23E-03
2.78E-03
3.99E-03
1.24E-03
1.24E-03
1.24E-03
1.24E-03
5.00E-04
5.00E-04
5.00E-04
2.65E-03
5.00E-04
3.71E-03
1.24E-03
1.62E-03
1.24E-03
5.00E-04
5.00E-04
1.50E-01
5.00E-04
5.00E-03
3.28E-03
5.00E-04
3.37E-03
5.00E-03
5.00E-04
3.88E-03
1.19E-02
5.00E-02
1.51E-02
1.22E-03
5.00E-04
1.24E-03
1.24E-03
2.21E-03
1.22E-03
1.24E-03
1.24E-03
1.24E-03
2.16E-03
1.24E-03
2.27E-03
5.00E-04
1.17E-03
3.99E-03
3.96E-03
6.72E-04
2.50E-02
1.21E-03
2.16E-03
5.00E-04
5.00E-03
Maximum
Detected
Cone (mg/L)
na
na
na
na
na
l.OOE-03
5.00E-03
na
na
na
na
na
na
na
na
na
na
1.70E-03
na
na
na
na
na
na
na
na
na
na
na
na
na
4.00E+00
na
na
na
2.00E-03
na
na
na
na
1.20E-03
na
na
na
na
na
na
na
na
na
3.60E-03
5.80E+00
na
8.10E-03
na
na
na

Wildlife Surface
Water Benchmark
(mg/L)
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
1.87E+00
no benchmark
no benchmark
4.37E+03
no benchmark
4.37E+03
1.25E+02
4.49 E+01
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
1.25E+02
1.90E+02
no benchmark
no benchmark
no benchmark
3.88E+00
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
7.77E+01
no benchmark
no benchmark
no benchmark
1.11E+02
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
1.24E+02
no benchmark
no benchmark
no benchmark
1.17E+02
no benchmark
1.90E+02
no benchmark
no benchmark
no benchmark
4.55E+01
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
COPC SELECTION STEPS
Does compound
have a TRY?
no
no
no
no
no
yes
no
no
yes
no
yes
yes
yes
no
no
no
no
no
yes
yes
no
no
no
yes
no
no
no
no
no
no
no
yes
no
no
no
yes
no
no
no
no
no
yes
no
no
no
yes
no
yes
no
no
no
yes
no
no
no
no
no
Is compound
detected?
na
na
na
na
na
yes
na
na
no
na
no
no
no
na
na
na
na
na
no
no
na
na
na
no
na
na
na
na
na
na
na
yes
na
na
na
yes
na
na
na
na
na
no
na
na
na
no
na
no
na
na
na
yes
na
na
na
na
na
Is Max Detect
>TRV?
na
na
na
na
na
no
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
no
na
na
na
no
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
no
na
na
na
na
na
Is Mean DL
>TRV?
na
na
na
na
na
na
na
na
no
na
no
no
no
na
na
na
na
na
no
no
na
na
na
no
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
no
na
na
na
no
na
no
na
na
na
na
na
na
na
na
na
SURFACE WATER COPCs
QUANT
COPC
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
QUAL
COPC
Typel
1
1
1
1
1
0
1
1
0
1
0
0
0
1
1
1
1
1
0
0
1
1
1
0
1
1
1
1
1
1
1
0
1
1
1
0
1
1
1
1
1
0
1
1
1
0
1
0
1
1
1
0
1
1
1
1
1
QUAL
COPC
Type 2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Not a
COPC
0
0
0
0
0
1
0
0
1
0
1
1
1
0
0
0
0
0
1
1
0
0
0
1
0
0
0
0
0
0
0
1
0
0
0
1
0
0
0
0
0
1
0
0
0
1
0
1
0
0
0
1
0
0
0
0
0
COPCScreen_Wildlife SW.xls: SWScreen
1/13/2003
                                                                                                                                                                                                            Page 3 of 4

-------
                                                                        Appendix D-4 Wildlife Receptor COPC Screen for Surface Water

                                                                                   Ecological Risk Assessment for Ogden, Utah
Group

Analyte
Isobutyl Alcohol
Isopropylbenzene
Methacrylonitrik
Methyl ethyl ketone (MEK)
Methyl isobutyl ketone (MIBKJ
Methyl Methacrylate
Methyl-t-butyl ether (MTBE)
n-Butylbenzene
n-Propylbenzene
o-Xylene
sec-Butylbenzene
Styrene
tert-Butylbenzene
Tetrachloroethene
Toluene
trans-l,2-Dichloroethene
trans-l,3-Dichloropropene
trans-l,4-Dichloro-2-Butene
Trichloroethene
Trichlorofluoromethane
Vinyl Acetate
Vinyl Chlorids
Xylenes (Total)
Xylenes-p,m
CAS#
78-83-1
98-82-8
126-98-7
78-93-3
108-10-1
80-62-6
1634-04-4
104-51-8
103-65-1
95-47-6
135-98-8
100-42-5
98-06-6
127-18-4
108-88-3
156-60-5
10061-02-6
110-57-6
79-01-6
75-69-4
108-05-4
75-01-4
1330-20-7
179601-23-1
DATA
Number of
Detections
0
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
Number of
Samples
31
18
75
63
84
31
9
9
9
9
9
84
9
84
84
53
84
31
84
84
75
84
75
9
Detection
Frequency
(DF)
0%
0%
0%
2%
1%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
1%
0%
Mean Non-
Detected
Cone
(mg/L)
5.00E-02
5.00E-04
2.81E-03
3.56E-03
3.19E-03
5.00E-03
5.00E-04
5.00E-04
5.00E-04
5.00E-04
5.00E-04
1.24E-03
5.00E-04
1.24E-03
1.24E-03
5.00E-04
1.24E-03
5.00E-03
1.24E-03
2.16E-03
2.36E-03
2.16E-03
1.86E-03
5.00E-04
Maximum
Detected
Cone fmg/L)
na
na
na
2.20E-03
1.50E-03
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
4.80E-03
na

Wildlife Surface
Water Benchmark
(mg/L)
no benchmark
no benchmark
no benchmark
1.38E+04
1.94E+02
no benchmark
no benchmark
no benchmark
no benchmark
8.83E+00
no benchmark
no benchmark
no benchmark
5.89E+00
1.09E+02
1.90E+02
no benchmark
no benchmark
2.94E+00
no benchmark
no benchmark
1.32E+00
8.83E+00
8.83E+00
COPC SELECTION STEPS
Does compound
haveaTRV?
no
no
no
yes
yes
no
no
no
no
yes
no
no
no
yes
yes
yes
no
no
yes
no
no
yes
yes
yes
Is compound
detected?
na
na
na
yes
yes
na
na
na
na
no
na
na
na
no
no
no
na
na
no
na
na
no
yes
no
Is Max Detect
>TRV?
na
na
na
no
no
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
no
na
Is Mean DL
>TRV?
na
na
na
na
na
na
na
na
na
no
na
na
na
no
no
no
na
na
no
na
na
no
na
no
SURFACE WATER COPCs
QUANT
COPC
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
QUAL
COPC
Typel
1
1
1
0
0
1
1
1
1
0
1
1
1
0
0
0
1
1
0
1
1
0
0
0
QUAL
COPC
Type 2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Not a
COPC
0
0
0
1
1
0
0
0
0
1
0
0
0
1
1
1
0
0
1
0
0
1
1
1
COPCScreen_Wildlife SW.xls: SWScreen
1/13/2003
                                                                                                                                                                                                            Page 4 of 4

-------
                                                                         Appendix D-5 Wildlife Receptor COPC Screen for Sediment

                                                                                 Ecological Risk Assessment for Ogden, Utah
Group
Metals
Pesticides
8
Analyte
Aluminum
Antimony
Arsenic
Barium
Beryllium
Cadmium
Calcium
Chromium
Cobalt
Copper
Iron
Lead
Magnesium
Manganese
Mercury
Nickel
Potassium
Selenium
Silver
Sodium
Thallium
Vanadium
Zinc
4,4'-DDD
4,4'-DDE
4,4-DDT
Aldrin
alpha-BHC
alpha-Chlordane
Atrazine
beta-BHC
Caprolactam
Chlordane
delta-BHC
Dieldrin
Endosulfan I
Endosulfan II
Endosulfan Sulfate
Endrin
Endrin Aldehyde
Endrin ketone
gamma-BHC (Lindane)
gamma-Chlordane
Heptachlor
Heptachlor Epoxide
Isodrin
Kepone
Methoxychlor
Toxaphene
2-Chloronaphthalene
1 -Methylnaphthalene
2-Methylnaphthalene
Acenaphthene
Acenaphthylene
Aniline
CAS#
7429-90-5
7440-36-0
7440-38-2
7440-39-3
7440-41-7
7440-43-9
7440-70-2
7440-47-3
7440-48-4
7440-50-8
7439-89-6
7439-92-1
7439-95-4
7439-96-5
7439-97-6
7440-02-0
7440-09-7
7782-49-2
7440-22-4
7440-23-5
7440-28-0
7440-62-2
7440-66-6
72-54-8
72-55-9
50-29-3
309-00-2
319-84-6
5103-71-9
1912-24-9
319-85-7
105-60-2
57-74-9
319-86-8
60-57-1
959-98-8
33213-65-9
1031-07-8
72-20-8
7421-93-4
53494-70-5
58-89-9
12789-03-6
76-44-8
1024-57-3
465-73-6
143-50-0
72-43-5
8001-35-2
91-58-7
90-12-0
91-57-6
83-32-9
208-96-8
62-53-3
DATA
Number of
Detections
32
2
30
45
16
14
32
49
32
32
32
49
32
32
28
32
0
8
10
32
3
32
32
0
7
2
0
0
2
0
0
0
0
0
1
0
0
0
0
3
0
0
2
0
0
0
0
0
0
0
2
12
24
22
0
Number of
Samples
32
32
50
50
32
50
32
50
32
32
32
50
32
32
50
32
32
50
50
32
32
32
32
65
65
65
65
65
47
21
65
20
18
65
65
65
65
65
65
65
47
65
47
65
65
18
18
65
65
74
21
100
114
114
28
Detection
Frequency
(DF)
100%
6%
60%
90%
50%
28%
100%
98%
100%
100%
100%
98%
100%
100%
56%
100%
0%
16%
20%
100%
9%
100%
100%
0%
11%
3%
0%
0%
4%
0%
0%
0%
0%
0%
2%
0%
0%
0%
0%
5%
0%
0%
4%
0%
0%
0%
0%
0%
0%
0%
10%
12%
21%
19%
0%
Mean Non-
Detected Cone
(mg/kg)
na
2.09E-03
2.36E-03
2.72E-02
2.95E-04
1.77E-04
na
5.00E-04
na
na
na
l.OOE-03
na
na
2.04E-05
na
na
1.20E-03
2.42E-04
na
7.47E-04
na
na
4.44E-06
4.50E-06
4.50E-06
2.64E-06
2.64E-06
2.17E-06
1.43E-03
2.64E-06
1.15E-03
4.00E-05
2.64E-06
4.47E-06
2.64E-06
4.44E-06
4.44E-06
4.44E-06
4.49E-06
3.07E-06
2.64E-06
2.17E-06
2.64E-06
2.64E-06
4.00E-06
8.00E-06
1.91E-05
1.15E-04
8.25E-04
4.64E-04
6.68E-04
6.22E-04
6.00E-04
6.36E-04
Maximum
Detected Cone
(mg/kg)
1.67E+04
1.40E+00
5.40E+00
2.49E+02
6.30E-01
9.60E-01
1.10E+05
2.23E+01
7.70E+00
3.76E+01
2.10E+04
1.20E+02
1.10E+04
9.60E+02
5.30E-01
2.00E+01
na
5.80E+00
1.20E+00
3.81E+02
1.30E+00
3.18E+01
1.82E+02
na
1.20E-02
6.10E-03
na
na
1.30E-02
na
na
na
na
na
5.40E-03
na
na
na
na
8.10E-03
na
na
1.70E-02
na
na
na
na
na
na
na
2.10E+02
1.40E+03
8.50E+02
1.30E+02
na
Wildlife
Receptor
Sediment
Benchmark
(mg/kg)
3.83E+00
2.48E-01
2.50E-01
1.72E+01
2.42E+00
1.20E+00
no benchmark
8.30E-01
no benchmark
3.89E+01
no benchmark
9.40E-01
no benchmark
3.22E+02
5.00E-03
6.41E+01
no benchmark
3.31E-01
no benchmark
no benchmark
2.70E-02
7.14E-01
1.20E+01
2.00E-03
2.00E-03
2.00E-03
7.33E-01
l.OOE-01
1.80E+00
no benchmark
1 .47E+00
no benchmark
1.80E+00
l.OOE-01
6.40E-02
5.50E-01
5.50E-01
5.50E-01
8.00E-03
no benchmark
no benchmark
1.66E+00
1.80E+00
4.76E-01
no benchmark
no benchmark
2.93E-01
1.47E+01
2.93E+01
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
COPC SELECTION STEPS
Does
compound
have a
TRY?
yes
yes
yes
yes
yes
yes
no
yes
no
yes
no
yes
no
yes
yes
yes
no
yes
no
no
yes
yes
yes
yes
yes
yes
yes
yes
yes
no
yes
no
yes
yes
yes
yes
yes
yes
yes
no
no
yes
yes
yes
no
no
yes
yes
yes
no
no
no
no
no
no
Is
compound
detected?
yes
yes
yes
yes
yes
yes
na
yes
na
yes
na
yes
na
yes
yes
yes
na
yes
na
na
yes
yes
yes
no
yes
yes
no
no
yes
na
no
na
no
no
yes
no
no
no
no
na
na
no
yes
no
na
na
no
no
no
na
na
na
na
na
na
Is Max
Detect >
TRY?
yes
yes
yes
yes
no
no
na
yes
na
no
na
yes
na
yes
yes
no
na
yes
na
na
yes
yes
yes
na
yes
yes
na
na
no
na
na
na
na
na
no
na
na
na
na
na
na
na
no
na
na
na
na
na
na
na
na
na
na
na
na
Is Mean DL
>TRV?
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
no
na
na
no
no
na
na
no
na
no
no
na
no
no
no
no
na
na
no
na
no
na
na
no
no
no
na
na
na
na
na
na
SEDIMENT COPCs
QUANT
COPC
1
1
1
1
0
0
0
1
0
0
0
1
0
1
1
0
0
1
0
0
1
1
1
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
QUAL
COPC
Typel
0
0
0
0
0
0
1
0
1
0
1
0
1
0
0
0
1
0
1
1
0
0
0
0
0
0
0
0
0
1
0
1
0
0
0
0
0
0
0
1
1
0
0
0
1
1
0
0
0
1
1
1
1
1
1
QUAL
COPC
Type 2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Not a
COPC
0
0
0
0
1
1
0
0
0
1
0
0
0
0
0
1
0
0
0
0
0
0
0
1
0
0
1
1
1
0
1
0
1
1
1
1
1
1
1
0
0
1
1
1
0
0
1
1
1
0
0
0
0
0
0
COPCScreenJAJildlife Sed.x
1/13/2003

-------
                                                                         Appendix D-5 Wildlife Receptor COPC Screen for Sediment

                                                                                 Ecological Risk Assessment for Ogden, Utah
Group
Polycyclic Aromatic Hydrocarbons
Polychlorinated
Biphenyls (PCBs)
Petroleum
Hydro-
carbons
Organic Compounds (SVOCs)
Analyte
Anthracene
Benzofa] anthracene
Benzo[a]pyrene
B enzo [b] fluor anthene
Benzo[g,h,i]perylene
B enzo [k] fluor anthene
Chrysene
Dibenz[a,h] anthracene
Dibenzofuran
Fluoranthene
Fluorene
Indeno[l,2,3-c,d]pyrene
Naphthalene
Phenanthrene
Pyrene
Aroclor-1016
Aroclor-1221
Aroclor-1232
Aroclor-1242
Aroclor-1248
Aroclor-1254
Aroclor-1260
Aroclor-1268
Total Petroleum Hydrocarbons (TPH)
1 ,2,4-Trichlorobenzene
1 ,2-Dichlorobenzene
1 ,3-Dichlorobenzene
1 ,4-Dichlorobenzene
,2'-oxybis(l -Chloropropane)
,4,5-Trichlorophenol
,4,6-Trichlorophenol
,4-Dichlorophenol
,4-Dimethylphenol
,4-Dinitrophenol
,4-Dinitrotoluene
,6-Dinitrotoluene
-Chlorophenol
-Methylphenol (o-Cresol)
-Nitroaniline
-Nitrophenol
3,3'-Dichlorobenzidine
3-Nitroaniline
4,6-Dinitro-o-cresol
4-Bromophenyl-phenylether
4-Chloro-3-Methylphenol
4-Chloroaniline
4-Chlorophenyl-phenylether
4-Methylphenol (p-Cresol)
4-Nitroaniline
4-Nitrophenol
Acetophenone
Benzaldehyde
CAS#
120-12-7
56-55-3
50-32-8
205-99-2
191-24-2
207-08-9
218-01-9
53-70-3
132-64-9
206-44-0
86-73-7
193-39-5
91-20-3
85-01-8
129-00-0
12674-11-2
11104-28-2
11141-16-5
53469-21-9
12672-29-6
11097-69-1
11096-82-5
11100-14-4
TPH
120-82-1
95-50-1
541-73-1
106-46-7
108-60-1
95-95-4
88-06-2
120-83-2
105-67-9
51-28-5
121-14-2
606-20-2
95-57-8
95-48-7
88-74-4
88-75-5
91-94-1
99-09-2
534-52-1
101-55-3
59-50-7
106-47-8
7005-72-3
106-44-5
100-01-6
100-02-7
98-86-2
100-52-7
DATA
Number of
Detections
36
54
59
57
50
54
63
28
4
65
20
51
21
51
76
0
0
0
0
0
2
20
0
11
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
15
0
0
0
0
Number of
Samples
114
114
114
114
114
114
114
114
74
114
114
114
129
114
114
86
86
86
86
86
85
86
15
11
76
76
69
76
1
74
74
74
81
74
81
81
74
81
74
74
81
74
81
35
74
74
74
81
74
74
20
21
Detection
Frequency
(DF)
32%
47%
52%
50%
44%
47%
55%
25%
5%
57%
18%
45%
16%
45%
67%
0%
0%
0%
0%
0%
2%
23%
0%
100%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
1%
0%
0%
0%
0%
0%
0%
19%
0%
0%
0%
0%
Mean Non-
Detected Cone
(mg/kg)
7.09E-04
8.27E-04
8.63E-04
8.58E-04
8.03E-04
8.28E-04
9.16E-04
6.54E-04
8.28E-04
9.44E-04
6.15E-04
8.14E-04
5.48E-04
8.22E-04
1.05E-03
5.77E-05
7.63E-05
5.77E-05
5.77E-05
5.77E-05
5.89E-05
4.31E-05
4.39E-05
na
6.10E-04
6.10E-04
5.53E-04
6.10E-04
2.15E-03
1.35E-03
8.25E-04
8.25E-04
8.56E-04
1.85E-03
8.56E-04
8.56E-04
8.25E-04
8.56E-04
1.85E-03
8.25E-04
9.65E-04
1.85E-03
2.18E-03
1.39E-03
8.25E-04
8.25E-04
8.25E-04
7.83E-04
1.85E-03
1.85E-03
1.15E-03
1.43E-03
Maximum
Detected Cone
(mg/kg)
5.20E+02
3.40E+02
3.50E+02
1.60E+02
2.00E+02
1.70E+02
3.60E+02
7.20E+01
4.10E+00
6.40E+02
4.20E+02
1.60E+02
1.90E+03
1.90E+03
1.20E+03
na
na
na
na
na
1.40E-01
4.20E+00
na
2.20E+03
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
3.70E-02
na
na
na
na
na
na
4.80E+00
na
na
na
na
Wildlife
Receptor
Sediment
Benchmark
(mg/kg)
no benchmark
no benchmark
1.98E+00
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
6.52E+00
7.10E-02
7.10E-02
3.29E-01
7.10E-02
1.11E-01
7.10E-02
7.10E-02
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
1.04E+03
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
1.04E+03
no benchmark
no benchmark
no benchmark
no benchmark
COPC SELECTION STEPS
Does
compound
have a
TRY?
no
no
yes
no
no
no
no
no
no
no
no
no
no
no
no
yes
yes
yes
yes
yes
yes
yes
yes
no
no
no
no
no
no
no
no
no
no
no
no
no
no
yes
no
no
no
no
no
no
no
no
no
yes
no
no
no
no
Is
compound
detected?
na
na
yes
na
na
na
na
na
na
na
na
na
na
na
na
no
no
no
no
no
yes
yes
no
na
na
na
na
na
na
na
na
na
na
na
na
na
na
no
na
na
na
na
na
na
na
na
na
yes
na
na
na
na
Is Max
Detect >
TRY?
na
na
yes
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
yes
yes
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
no
na
na
na
na
Is Mean DL
>TRV?
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
no
no
no
no
no
na
na
no
na
na
na
na
na
na
na
na
na
na
na
na
na
na
no
na
na
na
na
na
na
na
na
na
na
na
na
na
na
SEDIMENT COPCs
QUANT
COPC
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
QUAL
COPC
Typel
1
1
0
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
1
1
1
1
1
1
1
1
1
0
1
1
1
1
QUAL
COPC
Type 2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Not a
COPC
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
1
0
0
0
0
COPCScreenJAJildlife Sed.x
1/13/2003

-------
                                                                         Appendix D-5 Wildlife Receptor COPC Screen for Sediment

                                                                                 Ecological Risk Assessment for Ogden, Utah
Group
Semi-Volatile
u
Analyte
Benzyl alcohol
Biphenyl
bis(2-Chloroethoxy)methane
bis-(2-Chloroethyl)ether
bis(2-Chloroethyl)ether
bis(2-Chloroisopropyl)ether
bis(2-Ethylhexyl)phthalate
bis(n-octyl)phthalate
Butylbenzylphthalate
Carbazole
Dibutylphthalate
Diethylphthalate
Dimethylphthalate
Hexachlorobenzene
Hexachlorobutadiene
Hexachlorocyclopentadiene
Hexachloroethane
Isophorone
Nitrobenzene
N-Nitrosodiphenylamine
n-Nitrosodipropylamine
Pentachlorophenol (POP)
Phenol
1,1,1 ,2-Tetrachloroethane
1,1,1 -Trichloroethane
1,1,2,2-Tetrachloroethane
1 , 1 ,2-Trichloroethane
1 , 1 -Dichloroe thane
1,1-Dichloroethene
1 , 1 -Dichloropropene
1 ,2,3-Trichlorobenzene
1 ,2,3-Trichloropropane
1 ,2,4-Trimethylbenzene
l,2-Dibromo-3-chloropropane (DBCP)
1,2-Dichloroe thane
1,2-Dichloroethene
1 ,2-Dichloropropane
1 ,3,5-Trimethylbenzene
1 ,3-Dichloropropane
1,4-Dioxane
2,2-Dichloropropane
2-Chloro-l,3-butadiene (Chloroprene)
2-Chloroethyl vinyl ether
2-Chlorotoluene
2-Hexanone
3-Chloropropene (Allyl Chloride)
4-Chlorotoluene
Acetone
Acetonitrile
Acrolein
Acrylonitrile
Benzene
Bromobenzene
Bromodichloromethane
Bromoform
CAS#
100-51-6
92-52-4
111-91-1
111-44-4
111-44-4
108-60-1
117-81-7
117-84-0
85-68-7
86-74-8
84-74-2
84-66-2
131-11-3
118-74-1
87-68-3
77-47-4
67-72-1
78-59-1
98-95-3
86-30-6
621-64-7
87-86-5
108-95-2
630-20-6
71-55-6
79-34-5
79-00-5
75-34-3
75-35-4
563-58-6
87-61-6
96-18-4
95-63-6
96-12-8
107-06-2
540-59-0
78-87-5
108-67-8
142-28-9
123-91-1
594-20-7
126-99-8
110-75-8
95-49-8
591-78-6
107-05-1
106-43-4
67-64-1
75-05-8
107-02-8
107-13-1
71-43-2
108-86-1
75-27-4
75-25-2
DATA
Number of
Detections
0
1
0
0
0
0
46
1
5
6
5
1
0
0
0
0
0
0
0
0
0
0
2
0
0
0
1
1
0
0
0
0
1
0
0
0
0
1
0
0
0
0
0
0
0
0
0
38
0
1
1
3
0
0
0
Number of
Samples
15
20
74
1
1
1
82
81
81
81
81
81
74
81
96
74
81
74
81
74
81
81
81
35
68
68
68
68
15
15
15
68
15
56
68
53
68
15
15
20
15
20
53
15
68
20
15
68
53
53
53
68
15
68
68
Detection
Frequency
(DF)
0%
5%
0%
0%
0%
0%
56%
1%
6%
7%
6%
1%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
2%
0%
0%
0%
1%
1%
0%
0%
0%
0%
7%
0%
0%
0%
0%
7%
0%
0%
0%
0%
0%
0%
0%
0%
0%
56%
0%
2%
2%
4%
0%
0%
0%
Mean Non-
Detected Cone
(mg/kg)
1.71E-03
1.10E-03
8.25E-04
2.15E-03
2.15E-03
2.15E-03
1.31E-03
8.61E-04
8.89E-04
8.11E-04
8.96E-04
8.64E-04
8.25E-04
8.56E-04
7.22E-04
8.25E-04
8.56E-04
8.25E-04
8.56E-04
8.25E-04
8.56E-04
2.22E-03
8.73E-04
3.29E-06
3.05E-06
3.05E-06
3.06E-06
3.06E-06
l.OOE-06
l.OOE-06
l.OOE-06
3.79E-06
1.02E-06
4.21E-06
3.05E-06
6.26E-06
3.05E-06
1.02E-06
l.OOE-06
1.50E-04
l.OOE-06
5.00E-06
4.73E-06
l.OOE-06
6.06E-06
5.00E-06
l.OOE-06
7.80E-06
1.98E-05
3.16E-05
2.00E-05
3.00E-06
l.OOE-06
3.05E-06
3.05E-06
Maximum
Detected Cone
(mg/kg)
na
7.90E+00
na
na
na
na
4.00E+00
5.20E-01
6.70E-01
6.90E+00
9.90E-02
4.40E-02
na
na
na
na
na
na
na
na
na
na
1.10E-01
na
na
na
4.00E-03
5.20E-03
na
na
na
na
1.20E-01
na
na
na
na
1.20E-01
na
na
na
na
na
na
na
na
na
3.90E-01
na
4.50E-03
l.OOE-02
4.80E-02
na
na
na
Wildlife
Receptor
Sediment
Benchmark
(mg/kg)
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
9.10E-01
no benchmark
no benchmark
no benchmark
9.00E-02
9.08E+03
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
8.79E-01
no benchmark
no benchmark
2.06E+03
no benchmark
2.06E+03
1.42E+01
3.25E+01
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
1.42E+01
8.96E+01
no benchmark
no benchmark
no benchmark
1.83E+00
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
3.66E+01
no benchmark
no benchmark
no benchmark
5.22E+01
no benchmark
no benchmark
no benchmark
COPC SELECTION STEPS
Does
compound
have a
TRY?
no
no
no
no
no
no
yes
no
no
no
yes
yes
no
no
no
no
no
no
no
no
no
yes
no
no
yes
no
yes
yes
yes
no
no
no
no
no
yes
yes
no
no
no
yes
no
no
no
no
no
no
no
yes
no
no
no
yes
no
no
no
Is
compound
detected?
na
na
na
na
na
na
yes
na
na
na
yes
yes
na
na
na
na
na
na
na
na
na
no
na
na
no
na
yes
yes
no
na
na
na
na
na
no
no
na
na
na
no
na
na
na
na
na
na
na
yes
na
na
na
yes
na
na
na
Is Max
Detect >
TRY?
na
na
na
na
na
na
yes
na
na
na
yes
no
na
na
na
na
na
na
na
na
na
na
na
na
na
na
no
no
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
no
na
na
na
no
na
na
na
Is Mean DL
>TRV?
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
no
na
na
no
na
na
na
no
na
na
na
na
na
no
no
na
na
na
no
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
SEDIMENT COPCs
QUANT
COPC
0
0
0
0
0
0
1
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
QUAL
COPC
Typel
1
1
1
1
1
1
0
1
1
1
0
0
1
1
1
1
1
1
1
1
1
0
1
1
0
1
0
0
0
1
1
1
1
1
0
0
1
1
1
0
1
1
1
1
1
1
1
0
1
1
1
0
1
1
1
QUAL
COPC
Type 2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Not a
COPC
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
1
0
0
1
0
1
1
1
0
0
0
0
0
1
1
0
0
0
1
0
0
0
0
0
0
0
1
0
0
0
1
0
0
0
COPCScreenJAJildlife Sed.x
1/13/2003

-------
                                                                         Appendix D-5 Wildlife Receptor COPC Screen for Sediment

                                                                                 Ecological Risk Assessment for Ogden, Utah
Group
Volatile Organic Compounds (VO
Analyte
Bromomethane (Methyl bromide)
Carbon Disulfide
Carbon Tetrachloride
Chlorobenzene
Chlorodibromomethane
Chloroethane (Ethyl chloride)
Chloroform
Chloromethane (Methyl chloride)
cis-l,2-Dichloroethene
cis-l,3-Dichloropropene
Dibromomethane
Dichlorodifluoromethane
Di chloromethane
Ethyl Methacrylate
Ethylbenzene
Ethylene dibromide (EDB)
Hexane
lodomethane
Isobutyl Alcohol
Isopropylbenzene
Methacrylonitrile
Methyl ethyl ketone (MEK)
Methyl isobutyl ketone (MIBK)
Methyl Metharcylate
Methyl-t-butyl ether (MTBE)
n-Butylbenzene
n-Propylbenzene
o-Xylene
sec-Butylbenzene
Styrene
tert-Butylbenzene
Tetrachloroethene
Toluene
trans- 1,2-Dichloroethene
trans- 1,3-Dichloropropene
trans-l,4-Dichloro-2-Butene
Trichloroethene
Trichlorofiuoromethane
Vinyl Acetate
Vinyl Chloride
Xylenes (Total)
Xylenes-p,m
CAS#
74-83-9
75-15-0
56-23-5
108-90-7
124-48-1
75-00-3
67-66-3
74-87-3
156-59-2
10061-01-5
74-95-3
75-71-8
75-09-2
97-63-2
100-41-4
106-93-4
110-54-3
74-88-4
78-83-1
98-82-8
126-98-7
78-93-3
108-10-1
80-62-6
1634-04-4
104-51-8
103-65-1
95-47-6
135-98-8
100-42-5
98-06-6
127-18-4
108-88-3
156-60-5
10061-02-6
110-57-6
79-01-6
75-69-4
108-05-4
75-01-4
1330-20-7
179601-23-1
DATA
Number of
Detections
4
12
0
1
0
0
0
1
0
0
0
14
34
0
4
0
0
0
0
4
0
20
1
0
1
0
1
1
1
0
0
0
29
0
0
0
0
0
0
0
5
1
Number of
Samples
68
68
68
68
68
68
68
68
33
83
35
35
68
20
68
68
33
20
22
30
53
49
68
20
15
15
15
15
15
68
15
68
68
48
68
20
68
68
53
68
53
15
Detection
Frequency
(DF)
6%
18%
0%
1%
0%
0%
0%
1%
0%
0%
0%
40%
50%
0%
6%
0%
0%
0%
0%
13%
0%
41%
1%
0%
7%
0%
7%
7%
7%
0%
0%
0%
43%
0%
0%
0%
0%
0%
0%
0%
9%
7%
Mean Non-
Detected Cone
(mg/kg)
5.96E-06
3.17E-06
3.05E-06
3.06E-06
3.05E-06
5.72E-06
3.05E-06
5.51E-06
5.09E-06
2.68E-06
3.29E-06
4.83E-06
2.45E-06
2.50E-05
3.00E-06
3.90E-06
4.32E-06
5.00E-06
4.90E-05
1.01E-06
7.21E-06
4.98E-06
6.08E-06
5.00E-06
1.03E-06
l.OOE-06
1.02E-06
1.02E-06
1.02E-06
3.05E-06
l.OOE-06
3.05E-06
3.62E-06
3.81E-06
3.05E-06
5.00E-06
3.05E-06
4.99E-06
4.73E-06
5.84E-06
9.49E-06
1.02E-06
Maximum
Detected Cone
(mg/kg)
l.OOE-02
7.00E-03
na
1.90E-03
na
na
na
5.00E-03
na
na
na
1.61E-02
1.30E-02
na
2.70E-01
na
na
na
na
3.96E-02
na
6.00E-02
6.40E-03
na
2.10E-03
na
2.41E-02
8.05E-02
3.26E-03
na
na
na
1.90E+00
na
na
na
na
na
na
na
1.30E-01
5.12E-02
Wildlife
Receptor
Sediment
Benchmark
(mg/kg)
no benchmark
no benchmark
5.86E+01
no benchmark
no benchmark
no benchmark
5.50E+01
no benchmark
8.96E+01
no benchmark
no benchmark
no benchmark
2.14E+01
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
6.49E+03
9.16E+01
no benchmark
no benchmark
no benchmark
no benchmark
4.16E+00
no benchmark
no benchmark
no benchmark
2.77E+00
5.15E+01
8.96E+01
no benchmark
no benchmark
1.39E+00
no benchmark
no benchmark
6.23E-01
4.16E+00
4.16E+00
COPC SELECTION STEPS
Does
compound
have a
TRV?
no
no
yes
no
no
no
yes
no
yes
no
no
no
yes
no
no
no
no
no
no
no
no
yes
yes
no
no
no
no
yes
no
no
no
yes
yes
yes
no
no
yes
no
no
yes
yes
yes
Is
compound
detected?
na
na
no
na
na
na
no
na
no
na
na
na
yes
na
na
na
na
na
na
na
na
yes
yes
na
na
na
na
yes
na
na
na
no
yes
no
na
na
no
na
na
no
yes
yes
Is Max
Detect >
TRV?
na
na
na
na
na
na
na
na
na
na
na
na
no
na
na
na
na
na
na
na
na
no
no
na
na
na
na
no
na
na
na
na
no
na
na
na
na
na
na
na
no
no
Is Mean DL
>TRV?
na
na
no
na
na
na
no
na
no
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
no
na
no
na
na
no
na
na
no
na
na
SEDIMENT COPCs
QUANT
COPC
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
QUAL
COPC
Typel
1
1
0
1
1
1
0
1
0
1
1
1
0
1
1
1
1
1
1
1
1
0
0
1
1
1
1
0
1
1
1
0
0
0
1
1
0
1
1
0
0
0
QUAL
COPC
Type 2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Not a
COPC
0
0
1
0
0
0
1
0
1
0
0
0
1
0
0
0
0
0
0
0
0
1
1
0
0
0
0
1
0
0
0
1
1
1
0
0
1
0
0
1
1
1
COPCScreenJAJildlife Sed.x
1/13/2003

-------
                                                                Appendix D-6 COPC Screen for Surface Soil for Wildlife Receptors

                                                                            Ecological Risk Assessment for Ogden, Utah
Group
%
1
^
Pesticides

Analyte
Aluminum
Antimony
Arsenic
Barium
Beryllium
Cadmium
Calcium
Chromium
Cobalt
Copper
Iron
Lead
Magnesium
Manganese
Mercury
Nickel
Potassium
Selenium
Silver
Sodium
Thallium
Vanadium
Zinc
4,4'-DDD
4,4'-DDE
4,4'-DDT
Aldrin
alpha-BHC
alpha-Chlordane
beta-BHC
Chlordane
delta-BHC
Dieldrin
Endosulfan I
Endosulfan II
Endosulfan Sulfate
Endrin
Endrm Aldehyde
Endrin ketone
gamma-BHC (Lindane)
gamma-Chlordane
Heptachlor
Heptachlor Epoxide
Isodrin
Kepone
Methoxychlor
Toxaphene
2-Chloronaphthalene
2-Methylnaphthalene
Acenaphthene
CAS#
7429-90-5
7440-36-0
7440-38-2
7440-39-3
7440-41 -7
7440-43-9
7440-70-2
7440-47-3
7440-48-4
7440-50-8
7439-89-6
7439-92-1
7439-95-4
7439-96-5
7439.97-6
7440-02-0
7440-09-7
7782-49-2
7440-22-4
7440-23-5
7440-28-0
7440-62-2
7440-66-6
72-54-8
72-55-9
50-29-3
309-00-2
319-84-6
5103-71-9
319-85-7
57-74-9
319-86-8
60-57-1
959-98-8
33213-65-9
1031-07-8
72-20-8
7421-93-4
53494-70-5
58-89-9
12789-03-6
76-44-8
1024-57-3
465-73-6
143-50-0
72-43-5
8001-35-2
91-58-7
91-57-6
83-32-9
DATA
Number of
Detections
44
9
48
54
37
47
44
60
43
44
44
60
44
44
58
44
44
15
18
44
0
44
44
0
1
4
0
0
0
0
0
0
0
0
0
0
0
3
0
0
3
0
0
0
0
0
0
0
9
2
Number of
Samples
44
44
60
60
44
60
44
60
44
44
44
60
44
44
65
44
44
60
60
44
44
44
44
22
22
22
22
22
16
22
6
22
22
22
22
22
22
22
16
22
16
22
22
6
6
22
22
72
73
73
Detection
Frequency
(DF)
100%
20%
80%
90%
84%
78%
100%
100%
98%
100%
100%
100%
100%
100%
89%
100%
100%
25%
30%
100%
0%
100%
100%
0%
5%
18%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
14%
0%
0%
19%
0%
0%
0%
0%
0%
0%
0%
12%
3%
Mean Non-
Detected
Cone
(mg/kg)
na
1.09E-03
3.19E-03
3.81E-02
2.39E-04
8.08E-05
na
na
1.35E-03
na
na
na
na
na
1.89E-05
na
na
1.01E-03
1.44E-04
na
7.38E-04
na
na
3.63E-06
3.71E-06
3.99E-06
2.28E-06
2.28E-06
1.63E-06
2.28E-06
4.00E-05
2.28E-06
3.63E-06
2.28E-06
3.63E-06
3.63E-06
3.63E-06
3.87E-06
1.99E-06
2.28E-06
1.76E-06
2.28E-06
2.28E-06
4.00E-06
8.00E-06
1.46E-05
7.20E-05
3.15E-04
3.20E-04
3.07E-04
Maximum
Detected Cone
(mg/kg)
1 .30E+04
8.00E+00
2.40E+01
2.58E+02
9.30E-01
7.70E+00
3.78E+04
1 .96E+01
7.50E+00
1 .04E+02
1 .60E+04
9.40E+02
1 .OOE+04
6.30E+02
3.60E+00
1 .90E+01
3.29E+03
1.10E+00
4.30E+00
9.30E+02
na
2.25E+01
9.40E+02
na
1.80E-03
1.50E-02
na
na
na
na
na
na
na
na
na
na
na
9.80E-03
na
na
5.10E-03
na
na
na
na
na
na
na
2.00E-01
3.10E-01

Receptor Soil
Benchmark
(mg/kg)
3.83E+00
2.48E-01
2.50E-01
1.72E+01
2.42E+00
1 .20E+00
no benchmark
8.30E-01
no benchmark
3.89E+01
no benchmark
9.40E-01
no benchmark
3.22E+02
5.00E-03
6.41E+01
no benchmark
3.31E-01
no benchmark
no benchmark
2.70E-02
7.14E-01
1 .20E+01
2.00E-03
2.00E-03
2.00E-03
7.33E-01
1 .OOE-01
1 .80E+00
1 .47E+00
1 .80E+00
1 .OOE-01
6.40E-02
5.50E-01
5.50E-01
5.50E-01
8.00E-03
no benchmark
no benchmark
1 .66E+00
1 .80E+00
4.76E-01
no benchmark
no benchmark
2.93E-01
1 .47E+01
2.93E+01
no benchmark
no benchmark
no benchmark
COPC SELECTION STEPS
Does
compound
have a
TRY?
yes
yes
yes
yes
yes
yes
no
yes
no
yes
no
yes
no
yes
yes
yes
no
yes
no
no
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
no
no
yes
yes
yes
no
no
yes
yes
yes
no
no
no
Is
compound
detected?
yes
yes
yes
yes
yes
yes
na
yes
na
yes
na
yes
na
yes
yes
yes
na
yes
na
na
no
yes
yes
no
yes
yes
no
no
no
no
no
no
no
no
no
no
no
na
na
no
yes
no
na
na
no
no
no
na
na
na
Is Max
Detect >
TRY?
yes
yes
yes
yes
no
yes
na
yes
na
yes
na
yes
na
yes
yes
no
na
yes
na
na
na
yes
yes
na
no
yes
na
na
na
na
na
na
na
na
na
na
na
na
na
na
no
na
na
na
na
na
na
na
na
na
Is Mean DL
> TRY?
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
no
na
na
no
na
na
no
no
no
no
no
no
no
no
no
no
no
na
na
no
na
no
na
na
no
no
no
na
na
na
SURFACE SOIL COPCs
QUANT
COPC
1
1
1
1
0
1
o
1
0
1
0
1
0
1
1
0
0
1
0
0
0
1
1
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
QUAL
COPC
Typel
0
0
0
0
0
0
1
0
1
0
1
0
1
0
0
0
1
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0
1
1
0
0
0
1
1
1
QUAL
COPC
Type 2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Not a
COPC
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
1
0
0
1
1
0
1
1
1
1
1
1
1
1
1
1
1
0
0
1
1
1
0
0
1
1
1
0
0
0
COPCScreen_Wildlife Soil.xls: SurfSoilScreen
1/13/2003

-------
                                                                Appendix D-6 COPC Screen for Surface Soil for Wildlife Receptors

                                                                            Ecological Risk Assessment for Ogden, Utah
Group
Polycyclic Aromatic Hydrocarbons (PAHs)
Polychlorinated
Biphenyls (PCBs)

Analyte
Acenaphthylene
Aniline
Anthracene
Benzo[a]anthracene
Benzo[a]pyrene
Benzo [b] fluoranthene
Benzo[g,h,i]perylene
Benzo [k] fluoranthene
Chrysene
Dibenz[a,h]anthracene
Dibenzofuran
Fluoranthene
Fluorene
Indeno[l ,2,3-c,d]pyrene
Naphthalene
Phenanthrene
Pyrene
Aroclor-1016
Aroclor-1221
Aroclor-1232
Aroclor-1242
Aroclor-1248
Aroclor-1254
Aroclor-1260
Aroclor-1268
1 ,2,4-Tnchlorobenzene
1 ,2-Dichlorobenzene
1 ,3-Dichlorobenzene
1 ,4-Dichlorobenzene
1 -Methylnaphthalene
2,2'-oxybis(l -Chloropropane)
2,4,5-Trichlorophenol
2,4,6- Trichlorophenol
2,4-Dichlorophenol
2,4-Dimethylphenol
2,4-Dinitrophenol
2,4-Dinitrotoluene
2,6-Dimtrotoluene
2-Chlorophenol
2-Methylphenol (o-Cresol)
2-Nitroaniline
2-Nitrophenol
3,3'-Dichlorobenzidine
3-Nitroaniline
4,6-Dinitro-o-cresol
4-Bromophenyl-phenylether
4-Chloro-3-Methylphenol
4-Chloroaniline
4-Chlorophenyl-phenylether
4-Methylphenol (p-Cresol)
CAS#
208-96-8
62-53-3
120-12-7
56-55-3
50-32-8
205-99-2
191-24-2
207-08-9
218-01-9
53-70-3
132-64-9
206-44-0
86-73-7
193-39-5
91-20-3
85-01-8
129-00-0
12674-11-2
11104-28-2
11141-16-5
53469-21-9
12672-29-6
11097-69-1
11096-82-5
11100-14-4
120-82-1
95-50-1
541-73-1
106-46-7
90-12-0
108-60-1
95-95-4
88-06-2
120-83-2
105-67-9
51-28-5
121-14-2
606-20-2
95-57-8
95-48-7
88-74-4
88-75-5
91-94-1
99-09-2
534-52-1
101-55-3
59-50-7
106-47-8
7005-72-3
106-44-5
DATA
Number of
Detections
2
0
5
8
7
11
14
6
13
3
1
15
0
9
14
17
27
0
0
0
0
0
0
6
0
0
0
0
0
5
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
1
Number of
Samples
73
48
73
73
73
73
73
73
73
73
72
73
73
73
83
73
73
22
22
22
22
22
22
22
10
83
83
82
83
47
26
72
72
72
72
72
73
73
72
72
72
72
73
72
72
10
72
72
72
72
Detection
Frequency
(DF)
3%
0%
7%
11%
10%
15%
19%
8%
18%
4%
1%
21%
3%
12%
17%
23%
37%
0%
0%
0%
0%
0%
0%
27%
0%
0%
0%
0%
0%
11%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
1%
0%
0%
0%
0%
0%
0%
1%
Mean Non-
Detected
Cone
(mg/kg)
3.07E-04
2.16E-04
3.13E-04
3.19E-04
3.17E-04
3.27E-04
3.10E-04
3.14E-04
3.31E-04
3.19E-04
3.17E-04
3.37E-04
3.07E-04
3.21E-04
2.83E-04
3.41E-04
3.72E-04
2.77E-05
4.47E-05
2.77E-05
2.77E-05
2.77E-05
2.77E-05
2.99E-05
2.52E-05
2.76E-04
2.76E-04
2.77E-04
2.76E-04
2.03E-04
4.88E-04
3.67E-04
3.15E-04
3.15E-04
3.15E-04
9.15E-04
3.13E-04
3.13E-04
3.15E-04
3.15E-04
9.15E-04
3.15E-04
3.18E-04
9.15E-04
9.15E-04
1.01E-03
3.15E-04
3.15E-04
3.15E-04
3.17E-04
Maximum
Detected Cone
(mg/kg)
4.00E-01
na
7.10E-01
1 .40E+00
1 .60E+00
1 .20E+00
1 .60E+00
1 .60E+00
2.10E+00
9.60E-02
4.50E-02
2.30E+00
2.20E-01
1 .50E+00
2.70E-01
2.30E+00
3.70E+00
na
na
na
na
na
na
5.50E-01
na
na
na
na
na
2.30E-01
na
na
na
na
na
na
na
na
na
na
na
na
4.30E-02
na
na
na
na
na
na
1.10E-01

Receptor Soil
Benchmark
(mg/kg)
no benchmark
no benchmark
no benchmark
no benchmark
1 .98E+00
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
6.52E+00
7.10E-02
7.10E-02
3.29E-01
7.10E-02
1.11E-01
7.10E-02
7.10E-02
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
1 .04E+03
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
1 .04E+03
COPC SELECTION STEPS
Does
compound
have a
TRY?
no
no
no
no
yes
no
no
no
no
no
no
no
no
no
no
no
no
yes
yes
yes
yes
yes
yes
yes
yes
no
no
no
no
no
no
no
no
no
no
no
no
no
no
yes
no
no
no
no
no
no
no
no
no
yes
Is
compound
detected?
na
na
na
na
yes
na
na
na
na
na
na
na
na
na
na
na
na
no
no
no
no
no
no
yes
no
na
na
na
na
na
na
na
na
na
na
na
na
na
na
no
na
na
na
na
na
na
na
na
na
yes
Is Max
Detect >
TRY?
na
na
na
na
no
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
yes
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
no
Is Mean DL
> TRY?
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
no
no
no
no
no
no
na
no
na
na
na
na
na
na
na
na
na
na
na
na
na
na
no
na
na
na
na
na
na
na
na
na
na
SURFACE SOIL COPCs
QUANT
COPC
0
0
0
0
0
0
o
0
0
0
0
0
0
0
0
o
0
0
0
0
0
0
o
1
0
0
0
0
0
0
o
o
0
0
0
0
0
0
o
0
0
0
0
0
0
0
0
o
0
0
QUAL
COPC
Typel
1
1
1
1
0
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
1
1
1
1
1
1
1
1
1
0
QUAL
COPC
Type 2
0
0
o
o
0
0
0
0
0
0
o
o
0
0
0
0
0
0
o
o
0
0
0
0
0
0
o
o
0
0
0
0
0
0
o
o
0
0
0
0
0
0
o
o
0
0
0
0
0
0
Not a
COPC
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
1
COPCScreen_Wildlife Soil.xls: SurfSoilScreen
1/13/2003

-------
                                                                Appendix D-6 COPC Screen for Surface Soil for Wildlife Receptors

                                                                            Ecological Risk Assessment for Ogden, Utah
Group


Analyte
4-Nitroaniline
4-Nitrophenol
Benzyl alcohol
bis(2-Chloroethoxy)methane
bis-(2-Chloroethyl)ether
bis(2-Chloroethyl)ether
bis(2-Chloroisopropyl)ether
bis(2-Ethylhexyl)phthalate
bis(n-octyl)phthalate
Butylbenzylphthalate
Carbazole
Dibutylphthalate
Diethylphthalate
Dimethylphthalate
Hexachlorobenzene
Hexachlorobutadiene
Hexachlorocyclopentadiene
Hexachloroethane
Isophorone
Nitrobenzene
N-Nitrosodiphenylamine
n-Nitrosodipropylamine
Pentachlorophenol (PCP)
Phenol
1 ,1 ,1 ,2-Tetrachloroethane
1 ,1 ,1 -Tnchloroethane
1 ,1 ,2,2-Tetrachloroethane
1 ,1 ,2-Trichloroethane
1 ,1 -Dichloroethane
1 ,1 -Dichloroethene
1 ,1 -Dichloropropene
1 ,2,3-Trichlorobenzene
1 ,2,3-Trichloropropane
1 ,2,4-Tnmethylbenzene
1 ,2-Dibromo-3-chloropropane (DBCP)
1 ,2-Dichloroethane
1 ,2-Dichloroethene
1 ,2-Dichloropropane
1 ,3,5-Tnmethylbenzene
1 ,3-Dichloropropane
1 ,4-Dioxane
2,2-Dichloropropane
2-Chloro-l ,3-butadiene (Chloroprene)
2-Chloroethyl vinyl ether
2-Chlorotoluene
2-Hexanone
3-Chloropropene (Allyl Chloride)
4-Chlorotoluene
Acetone
Acetomtrile
CAS#
100-01-6
100-02-7
100-51-6
111-91-1
111-44-4
111-44-4
108-60-1
117-81-7
117-84-0
85-68-7
86-74-8
84-74-2
84-66-2
131-11-3
118-74-1
87-68-3
77-47-4
67-72-1
78-59-1
98-95-3
86-30-6
621-64-7
87-86-5
108-95-2
630-20-6
71-55-6
79-34-5
79-00-5
75-34-3
75-35-4
563-58-6
87-61-6
96-18-4
95-63-6
96-12-8
107-06-2
540-59-0
78-87-5
108-67-8
142-28-9
123-91-1
594-20-7
126-99-8
110-75-8
95-49-8
591-78-6
107-05-1
106-43-4
67-64-1
75-05-8
DATA
Number of
Detections
0
0
0
0
0
0
0
32
1
9
3
20
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4
0
Number of
Samples
72
72
10
72
73
73
26
73
73
73
73
73
73
72
73
83
72
73
72
73
72
73
72
72
25
70
70
70
70
10
10
10
70
10
70
70
60
70
10
10
15
10
15
60
10
70
15
10
70
60
Detection
Frequency
(DF)
0%
0%
0%
0%
0%
0%
0%
44%
1%
12%
4%
27%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
1%
0%
1%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
6%
0%
Mean Non-
Detected
Cone
(mg/kg)
9.15E-04
9.15E-04
1.01E-03
3.15E-04
3.13E-04
3.13E-04
4.88E-04
2.96E-04
3.15E-04
3.31E-04
3.09E-04
3.21E-04
3.13E-04
3.15E-04
3.13E-04
2.76E-04
3.15E-04
3.13E-04
3.15E-04
3.13E-04
3.15E-04
3.13E-04
9.15E-04
3.15E-04
3.33E-06
2.81E-06
2.82E-06
2.81E-06
2.82E-06
8.29E-07
8.29E-07
8.29E-07
3.35E-06
8.29E-07
3.35E-06
2.81E-06
5.67E-06
2.81E-06
8.29E-07
8.29E-07
1.50E-04
8.29E-07
5.00E-06
3.78E-06
8.29E-07
5.63E-06
5.00E-06
8.29E-07
6.32E-06
1.63E-05
Maximum
Detected Cone
(mg/kg)
na
na
na
na
na
na
na
1 .50E+00
5.10E-02
2.80E-01
2.60E-01
2.20E-01
na
na
na
na
na
na
na
na
na
na
na
na
na
na
1 .20E-03
na
6.40E-03
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
2.80E-02
na

Receptor Soil
Benchmark
(mg/kg)
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
9.10E-01
no benchmark
no benchmark
no benchmark
9.00E-02
9.08E+03
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
8.79E-01
no benchmark
no benchmark
2.06E+03
no benchmark
2.06E+03
1 .42E+01
3.25E+01
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
1 .42E+01
8.96E+01
no benchmark
no benchmark
no benchmark
1 .83E+00
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
3.66E+01
no benchmark
COPC SELECTION STEPS
Does
compound
have a
TRY?
no
no
no
no
no
no
no
yes
no
no
no
yes
yes
no
no
no
no
no
no
no
no
no
yes
no
no
yes
no
yes
yes
yes
no
no
no
no
no
yes
yes
no
no
no
yes
no
no
no
no
no
no
no
yes
no
Is
compound
detected?
na
na
na
na
na
na
na
yes
na
na
na
yes
no
na
na
na
na
na
na
na
na
na
no
na
na
no
na
no
yes
no
na
na
na
na
na
no
no
na
na
na
no
na
na
na
na
na
na
na
yes
na
Is Max
Detect >
TRY?
na
na
na
na
na
na
na
yes
na
na
na
yes
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
no
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
no
na
Is Mean DL
> TRY?
na
na
na
na
na
na
na
na
na
na
na
na
no
na
na
na
na
na
na
na
na
na
no
na
na
no
na
no
na
no
na
na
na
na
na
no
no
na
na
na
no
na
na
na
na
na
na
na
na
na
SURFACE SOIL COPCs
QUANT
COPC
0
0
0
0
0
0
o
1
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
QUAL
COPC
Typel
1
1
1
1
1
1
1
0
1
1
1
0
0
1
1
1
1
1
1
1
1
1
0
1
1
0
1
0
0
0
1
1
1
1
1
0
0
1
1
1
0
1
1
1
1
1
1
1
0
1
QUAL
COPC
Type 2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Not a
COPC
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
1
0
0
1
0
1
1
1
0
0
0
0
0
1
1
0
0
0
1
0
0
0
0
0
0
0
1
0
COPCScreen_Wildlife Soil.xls: SurfSoilScreen
1/13/2003

-------
                                                                Appendix D-6 COPC Screen for Surface Soil for Wildlife Receptors

                                                                            Ecological Risk Assessment for Ogden, Utah
Group
Volatile Organic Compounds (VOCs)
Analyte
Acrolein
Acrylomtnle
Benzene
Bromobenzene
Bromodichloromethane
Bromoform
Bromomethane (Methyl bromide)
Carbon Bisulfide
Carbon Tetrachloride
Chlorobenzene
Chlorodibromom ethane
Chloroethane (Ethyl chloride)
Chloroform
Chloromethane (Methyl chloride)
cis-1 ,2-Dichloroethene
cis-1 ,3-Dichloropropene
Dibromom ethane
Dichlorodifluorom ethane
Dichlorom ethane
Ethyl Methacrylate
Ethylbenzene
Ethylene dibromide (EDB)
Hexane
lodomethane
Isobutyl Alcohol
Isopropylbenzene
Methacrylomtrile
Methyl ethyl ketone (MEK)
Methyl isobutyl ketone (MIBK)
Methyl Metharcylate
Methyl-t-butyl ether (MTBE)
n-Butylbenzene
n-Propylbenzene
o-Xylene
sec-Butylbenzene
Styrene
tert-Butylbenzene
Tetrachloroethene
Toluene
trans-1 ,2-Dichloroethene
trans-1 ,3-Dichloropropene
trans-1 ,4-Dichloro-2-Butene
Tnchloroethene
Trichlorofluoromethane
Vinyl Acetate
Vinyl Chloride
Xylenes (Total)
Xylenes-p,m
CAS#
107-02-8
107-13-1
71-43-2
108-86-1
75-27-4
75-25-2
74-83-9
75-15-0
56-23-5
108-90-7
124-48-1
75-00-3
67-66-3
74-87-3
156-59-2
10061-01-5
74-95-3
75-71-8
75-09-2
97-63-2
100-41-4
106-93-4
110-54-3
74-88-4
78-83-1
98-82-8
126-98-7
78-93-3
108-10-1
80-62-6
1634-04-4
104-51-8
103-65-1
95-47-6
135-98-8
100-42-5
98-06-6
127-18-4
108-88-3
156-60-5
10061-02-6
110-57-6
79-01-6
75-69-4
108-05-4
75-01-4
1330-20-7
179601-23-1
DATA
Number of
Detections
0
0
2
0
0
0
0
0
0
0
0
0
1
0
0
0
0
1
22
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
2
0
0
0
0
1
0
0
1
0
Number of
Samples
46
60
70
10
70
70
70
70
70
70
70
70
70
70
45
80
25
25
70
15
70
70
45
15
15
20
60
27
70
15
10
10
10
10
10
70
10
70
70
55
70
15
70
70
60
70
60
10
Detection
Frequency
(DF)
0%
0%
3%
0%
0%
0%
0%
0%
0%
0%
0%
0%
1%
0%
0%
0%
0%
4%
31%
0%
1%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
3%
3%
0%
0%
0%
0%
1%
0%
0%
2%
0%
Mean Non-
Detected
Cone
(mg/kg)
2.54E-05
1.64E-05
2.81E-06
8.29E-07
2.81E-06
2.81E-06
5.62E-06
2.81E-06
2.81E-06
2.81E-06
2.81E-06
5.51E-06
2.84E-06
5.51E-06
3.40E-06
2.56E-06
3.33E-06
3.44E-06
2.13E-06
2.50E-05
2.82E-06
3.35E-06
3.32E-06
5.00E-06
5.00E-05
8.29E-07
6.29E-06
4.38E-06
5.63E-06
5.00E-06
8.29E-07
8.29E-07
8.29E-07
8.29E-07
8.29E-07
2.81E-06
8.29E-07
2.82E-06
2.81E-06
2.98E-06
2.81E-06
5.00E-06
2.81E-06
4.98E-06
3.81E-06
5.51E-06
8.30E-06
8.29E-07
Maximum
Detected Cone
(mg/kg)
na
na
1 .20E-03
na
na
na
na
na
na
na
na
na
1 .OOE-03
na
na
na
na
2.20E-03
7.80E-03
na
2.40E-03
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
6.80E-03
2.00E-03
na
na
na
na
3.00E-03
na
na
1 .30E-02
na

Receptor Soil
Benchmark
(mg/kg)
no benchmark
no benchmark
5.22E+01
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
5.86E+01
no benchmark
no benchmark
no benchmark
5.50E+01
no benchmark
8.96E+01
no benchmark
no benchmark
no benchmark
2.14E+01
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
6.49E+03
9.16E+01
no benchmark
no benchmark
no benchmark
no benchmark
4.16E+00
no benchmark
no benchmark
no benchmark
2.77E+00
5.15E+01
8.96E+01
no benchmark
no benchmark
1 .39E+00
no benchmark
no benchmark
6.23E-01
4.16E+00
4.16E+00
COPC SELECTION STEPS
Does
compound
have a
TRV?
no
no
yes
no
no
no
no
no
yes
no
no
no
yes
no
yes
no
no
no
yes
no
no
no
no
no
no
no
no
yes
yes
no
no
no
no
yes
no
no
no
yes
yes
yes
no
no
yes
no
no
yes
yes
yes
Is
compound
detected?
na
na
yes
na
na
na
na
na
no
na
na
na
yes
na
no
na
na
na
yes
na
na
na
na
na
na
na
na
no
no
na
na
na
na
no
na
na
na
yes
yes
no
na
na
no
na
na
no
yes
no
Is Max
Detect >
TRV?
na
na
no
na
na
na
na
na
na
na
na
na
no
na
na
na
na
na
no
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
no
no
na
na
na
na
na
na
na
no
na
Is Mean DL
> TRV?
na
na
na
na
na
na
na
na
no
na
na
na
na
na
no
na
na
na
na
na
na
na
na
na
na
na
na
no
no
na
na
na
na
no
na
na
na
na
na
no
na
na
no
na
na
no
na
no
SURFACE SOIL COPCs
QUANT
COPC
0
0
0
0
0
0
o
0
0
0
0
0
0
0
0
o
0
0
0
0
0
0
o
o
0
0
0
0
0
0
o
o
0
0
0
0
0
0
o
0
0
0
0
0
0
0
0
o
QUAL
COPC
Typel
1
1
0
1
1
1
1
1
0
1
1
1
0
1
0
1
1
1
0
1
1
1
1
1
1
1
1
0
0
1
1
1
1
0
1
1
1
0
0
0
1
1
0
1
1
0
0
0
QUAL
COPC
Type 2
0
0
o
o
0
0
0
0
0
0
o
o
0
0
0
0
0
0
o
o
0
0
0
0
0
0
o
o
0
0
0
0
0
0
o
o
0
0
0
0
0
0
o
o
0
0
0
0
Not a
COPC
0
0
1
0
0
0
0
0
1
0
0
0
1
0
1
0
0
0
1
0
0
0
0
0
0
0
0
1
1
0
0
0
0
1
0
0
0
1
1
1
0
0
1
0
0
1
1
1
COPCScreen_Wildlife Soil.xls: SurfSoilScreen
1/13/2003

-------
                                                            Appendix D-7 COPC Screen for Fish Tissue Ingestion by Wildlife Receptors

                                                                             Ecological Risk Assessment for Ogden, Utah
Group
8
8
PH
Pesticide
Analyte
2-Chloronaphthalene
2-Methylnaphthalene
Acenaphthene
Acenaphthylene
Anthracene
Benzo[a]anthracene
Benzo[a]pyrene
Benzo[b]fluoranthene
Benzo[g,h,i]perylene
Benzo[k]fluoranthene
Chrysene
Dibenz[a,h]antbracene
Dibenzofuran
Fluoranthene
Fluorene
Indeno[l ,2,3-c,d]pyrene
Naphthalene
Phenanthrene
Pyrene
Aroclor-1 01 6
Aroclor-1 221
Aroclor-1 232
Aroclor-1 242
Aroclor-1 248
Aroclor-1 254
Aroclor-1 260
Aroclor-1 268
4,4'-DDD
4,4-DDE
4,4-DDT
Aldrin
alpha-BHC
alpha-Chlordane
beta-BHC
delta-BHC
Dieldrm
Endosulfan I
Endosulfan II
Endosulfan Sulfate
Endrin
Endrin Aldehyde
Endrin ketone
gamma-BHC
gamma-Chlordane
Heptachlor
Heptachlor Epoxide
Methoxychlor
Toxaphene
CAS#
91-58-7
91-57-6
83-32-9
208-96-8
120-12-7
56-55-3
50-32-8
205-99-2
191-24-2
207-08-9
218-01-9
53-70-3
132-64-9
206-44-0
86-73-7
193-39-5
91-20-3
85-01-8
129-00-0
12674-11-2
11104-28-2
11141-16-5
53469-21-9
12672-29-6
11097-69-1
11096-82-5
11100-14-4
72-54-8
72-55-9
50-29-3
309-00-2
319-84-6
5103-71-9
319-85-7
319-86-8
60-57-1
959-98-8
33213-65-9
1031-07-8
72-20-8
7421-93-4
53494-70-5
58-89-9
12789-03-6
76-44-8
1024-57-3
72-43-5
8001-35-2
DATA
Number of
Detections
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
28
0
18
29
1
0
0
0
0
0
0
0
0
0
0
0
0
0
2
0
0
0
0
Number of
Samples
29
29
34
34
34
34
34
34
34
34
34
34
29
34
34
34
34
34
34
29
29
29
29
29
29
29
28
29
29
29
29
29
29
29
29
29
29
29
29
29
29
29
29
29
29
29
29
29
Detection
Frequency
(DF)
0%
0%
3%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
97%
0%
62%
100%
3%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
7%
0%
0%
0%
0%
Mean Non-
Detected
Cone
(mg/kg)
1.01E-03
1.01E-03
8.79E-04
8.82E-04
8.82E-04
8.82E-04
8.82E-04
8.82E-04
8.82E-04
8.82E-04
8.82E-04
8.82E-04
1.01E-03
8.82E-04
8.82E-04
8.82E-04
8.82E-04
8.82E-04
8.82E-04
2.02E-05
4.20E-05
2.02E-05
2.02E-05
2.02E-05
2.02E-05
3.09E-05
1 .99E-05
2.04E-06
na
2.03E-06
2.03E-06
2.03E-06
2.03E-06
2.03E-06
2.03E-06
2.03E-06
2.03E-06
2.03E-06
2.03E-06
2.03E-06
2.03E-06
2.03E-06
2.03E-06
2.03E-06
2.03E-06
2.03E-06
2.03E-06
4.20E-05
Maximum
Detected Cone
(mg/kg)
na
na
5.64E-01
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
1.86E+00
na
1.59E-02
5.85E-01
2.69E-03
na
na
na
na
na
na
na
na
na
na
na
na
na
2.05E-02
na
na
na
na

Receptor Food
Benchmark
(mg/kg)
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
1 .98E+00
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
6.52E+00
7.10E-02
7.10E-02
3.29E-01
7.10E-02
1.11E-01
7.10E-02
7.10E-02
2.00E-03
2.00E-03
2.00E-03
7.33E-01
1 .OOE-01
1 .80E+00
1 .47E+00
1 .OOE-01
6.40E-02
5.50E-01
5.50E-01
5.50E-01
8.00E-03
no benchmark
no benchmark
1 .66E+00
1 .80E+00
4.76E-01
no benchmark
1 .47E+01
2.93E+01
COPC SELECTION STEPS
Does
compound
have a
TRY?
no
no
no
no
no
no
yes
no
no
no
no
no
no
no
no
no
no
no
no
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
no
no
yes
yes
yes
no
yes
yes
Is
compound
detected?
na
na
na
na
na
na
no
na
na
na
na
na
na
na
na
na
na
na
na
no
no
no
no
no
no
yes
no
yes
yes
yes
no
no
no
no
no
no
no
no
no
no
na
na
no
yes
no
na
no
no
Is Max
Detect >
TRY?
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
yes
na
yes
yes
yes
na
na
na
na
na
na
na
na
na
na
na
na
na
no
na
na
na
na
Is Mean DL
> TRY?
na
na
na
na
na
na
no
na
na
na
na
na
na
na
na
na
na
na
na
no
no
no
no
no
no
na
no
na
na
na
no
no
no
no
no
no
no
no
no
no
na
na
no
na
no
na
no
no
FISH TISSUE COPCs
QUANT
COPC
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
QUAL
COPC
Typel
1
1
1
1
1
1
0
1
1
1
1
1
1
1
1
1
1
1
1
o
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0
1
0
0
QUAL
COPC
Type 2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Not a
COPC
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
0
1
0
0
0
1
1
1
1
1
1
1
1
1
1
0
0
1
1
1
0
1
1
COPCScreen_Wildlife Fish.xls: FishTissueScreen
1/13/2003

-------
                                                            Appendix D-7  COPC Screen for Fish Tissue Ingestion by Wildlife Receptors

                                                                             Ecological Risk Assessment for Ogden, Utah
Group
SVOC
Analyte
1 ,2,4-Trichlorobenzene
1 ,2-Dichlorobenzene
1 ,3-Dichlorobenzene
1 ,4-Dichlorobenzene
2,4,5-Trichlorophenol
2,4,6-Tnchlorophenol
2,4-Dichlorophenol
2,4-Dimethylphenol
2, 4-D initrophenol
2,4-Dinitrotoluene
2,6-Dinitrotoluene
2-Chlorophenol
2-Methylphenol (o-Cresol)
2-Nitroamlme
2-Nitrophenol
3,3'-Dichlorobenzidine
3-Nitroaniline
4,6-Dinitro-o-cresol
4-Bromophenyl-phenyl ether
4-Chloro-3-Methylphenol
4-Chloroaniline
4-Chlorophenyl-phenyl ether
4-Methylphenol (p-Cresol)
4-Nitroaniline
4-Nitrophenol
Benzyl alcohol
bis(2-Chloroethoxy)m ethane
bis(2-Chloroethyl)ether
bis(2-Chloroisopropyl)ether
bis(2-Ethylhexyl)phthalate
bis(n-octyl)phthalate
Butylbenzylphthalate
Carbazole
Dibutylphthalate
Diethylphthalate
Dimethylphthalate
Hexachlorobenzene
Hexachlorobutadiene
Hexachlorocyclopentadiene
Hexachloroethane
Isophorone
Nitrobenzene
N-Nitrosodiphenylamme
n-Nitrosodipropylamine
Pentachlorophenol (PCP)
Phenol
CAS#
120-82-1
95-50-1
541-73-1
106-46-7
95-95-4
88-06-2
120-83-2
105-67-9
51-28-5
121-14-2
606-20-2
95-57-8
95-48-7
88-74-4
88-75-5
91-94-1
99-09-2
534-52-1
101-55-3
59-50-7
106-47-8
7005-72-3
106-44-5
100-01-6
100-02-7
100-51-6
111-91-1
111-44-4
108-60-1
117-81-7
117-84-0
85-68-7
86-74-8
84-74-2
84-66-2
131-11-3
118-74-1
87-68-3
77-47-4
67-72-1
78-59-1
98-95-3
86-30-6
621-64-7
87-86-5
108-95-2
DATA
Number of
Detections
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
22
0
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
Number of
Samples
29
29
29
29
29
29
29
29
29
29
29
29
29
29
29
29
29
29
29
29
29
29
29
29
29
29
29
29
29
29
29
29
29
29
29
29
29
29
29
29
29
29
29
29
29
30
Detection
Frequency
(DF)
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
76%
0%
0%
0%
3%
3%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
Mean Non-
Detected
Cone
(mg/kg)
1.01E-03
1.01E-03
1.01E-03
1.01E-03
1.01E-03
1.01E-03
1.01E-03
1.01E-03
1.01E-03
1.01E-03
1.01E-03
1.01E-03
1.01E-03
1.01E-03
1.01E-03
1.01E-03
1.01E-03
1.01E-03
1.01E-03
1.01E-03
1.01E-03
1.01E-03
1.01E-03
1.01E-03
1.01E-03
1.01E-03
1.01E-03
1.01E-03
1.01E-03
9.96E-04
1.01E-03
1.01E-03
1.01E-03
1.01E-03
1.01E-03
1.01E-03
1.01E-03
1.01E-03
1.01E-03
1.01E-03
1.01E-03
1.01E-03
1.01E-03
1.01E-03
1.01E-03
1.01E-03
Maximum
Detected Cone
(mg/kg)
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
2.73E+00
na
na
na
1.06E+00
1.74E+00
na
na
na
na
na
na
na
na
na
na
na

Receptor Food
Benchmark
(mg/kg)
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
1 .04E+03
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
1 .04E+03
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
9.10E-01
no benchmark
no benchmark
no benchmark
9.00E-02
9.08E+03
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
no benchmark
8.79E-01
no benchmark
COPC SELECTION STEPS
Does
compound
have a
TRY?
no
no
no
no
no
no
no
no
no
no
no
no
yes
no
no
no
no
no
no
no
no
no
yes
no
no
no
no
no
no
yes
no
no
no
yes
yes
no
no
no
no
no
no
no
no
no
yes
no
Is
compound
detected?
na
na
na
na
na
na
na
na
na
na
na
na
no
na
na
na
na
na
na
na
na
na
no
na
na
na
na
na
na
yes
na
na
na
yes
yes
na
na
na
na
na
na
na
na
na
no
na
Is Max
Detect >
TRY?
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
yes
na
na
na
yes
no
na
na
na
na
na
na
na
na
na
na
na
Is Mean DL
> TRY?
na
na
na
na
na
na
na
na
na
na
na
na
no
na
na
na
na
na
na
na
na
na
no
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
no
na
FISH TISSUE COPCs
QUANT
COPC
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
QUAL
COPC
Typel
1
1
1
1
1
1
1
1
1
1
1
1
0
1
1
1
1
1
1
1
1
1
0
1
1
1
1
1
1
0
1
1
1
0
o
1
1
1
1
1
1
1
1
1
0
1
QUAL
COPC
Type 2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Not a
COPC
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
1
0
                                                                                                                                                           Totals
                                                                                                                                                                               61
                                                                                                                                                                                                  27
COPCScreen_Wildlife Fish.xls: FishTissueScreen
1/13/2003

-------
ECOLOGICAL RISK ASSESSMENT FOR THE OGDEN KAILYARD SITE                     FINAL
                                  APPENDIX E




                 RISK CALCULATIONS AND DETAILED RESULTS









            E-l:  Exposure of Aquatic Receptors to Surface Water




            E-2:  Exposure of Benthic Organisms to Non-PAHs in Sediments




            E-3:  Exposure of Benthic Organisms to PAHs in Sediments (Based on Non-SIM Data)




            E-4:  Exposure of Benthic Organisms to PAHs in Sediments (Based on SIM Data)




            E-5:  Exposure of Benthic Organisms to Porewater




            E-6: Exposure of Fish Evaluated Using Fish Tissue Data




            E-7: Exposure of Terrestrial Receptors to Soil




            E-8: Exposure of Wildlife Receptors from Ingestion Pathways

-------
This page intentionally left blank to facilitate double-sided printing.

-------
                                                                       Appendix E-l
                                            Aquatic Receptor HQs for Direct Contact with Surface Water
                                                 Baseline Ecological Risk Assessment for the Ogden Kailyard Site
                                                                       ALUMINUM

                                                            Based on the Acute Toxicity Benchmark

o ND HQ • Detect HQ 	 HQ = 1


1E+02 -
& 1E+01 -
S
| 1E+00 -
o 1E-01 -
o*
, 1E-02 -

| 1E-03-
1E-04 -




i
v
OD








*v
O






f
••



















t



















o









o









ODO









cm






21st St 21st St BVPPond Ogden o den O den Weber Weber Weber Weber
Pond - Pond - (ref) Reach A R i. B R h C Reach A Reach B Reach C Reach D
West East (ref) (ref)



Statistic
Detect HQs >1:
ND HQs > 1 :
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
0
0
11
9
11
C

21st Street
Pond-
East
0
0
5
4
5
C

Buena
Ventura
Park Pond
2
0
2
4
4
A

Ogden
River -
Reach A
0
0
0
0
0
na

Ogden
River -
Reach B
0
0
4
4
4
C

Ogden
River -
Reach C
0
0
0
0
0
na

Weber
River -
Reach A
0
0
5
3
5
C

Weber
River -
Reach B
0
0
4
3
4
C

Weber
River -
Reach C
0
0
7
4
7
C

Weber
River -
Reach D
0
0
10
2
10
C
                                                            Based on the Chronic Toxicity Benchmark
1E+03 -i
1E+02 -
rd Quotients (HQs)
w w + +
o o o o
| 1E-03 -
1E-04 -
1E-05 -


.;
oo




O



A



o NDHQ • Detect HQ 	 HQ=1







0









OO

21st St 21st St BVP Ogden Ogden Ogden Weber
Pond Reach A Reach B Reach C Reach A
(ref) (ref) (ref)

O




ODO




ODD *



Weber Weber Weber
Reach B Reach C Reach D




Statistic
Detect HQs >1:
ND HQs > 1 :
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
6
0
5
9
11
A

21st Street
Pond-
East
0
0
5
4
5
C

Buena
Ventura
Park Pond
4
0
0
4
4
A

Ogden
River -
Reach A
0
0
0
0
0
na

Ogden
River -
Reach B
4
0
0
4
4
A

Ogden
River -
Reach C
0
0
0
0
0
na

Weber
River -
Reach A
3
2
0
3
5
A

Weber
River -
Reach B
3
1
0
3
4
A

Weber
River -
Reach C
4
3
0
4
7
A

Weber
River -
Reach D
2
8
0
2
10
B
                                             A = Risk to the sub-population at this location are possible
                                             B = Risks to the sub-population at this location cannot be determined
                                             C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                                             na = No data for this chemical in this location
AquaticRisk_SW.xls: Both Graphs
1/13/2003

-------
                                                                       Appendix E-l
                                             Aquatic Receptor HQs for Direct Contact with Surface Water
                                                 Baseline Ecological Risk Assessment for the Ogden Kailyard Site
                                                                          BARIUM

                                                             Based on the Acute Toxicity Benchmark
1E+03 -i
1E+02 -
& 1E+01 -
| 1E+00 -
1 1E-01 -
3
? 1E-02 -
| 1E-03-
1E-04 -
IE-OS -



*









**


o ND HQ • Detect HQ ^— HQ = 1








*




























21st St 21st St BVPPond Ogden Q den Q den Weber Weber Weber Weber
Pond - Pond - (ref) Reach A RtiB R h C Reacn A Reach B Reach C Reach D
West East (ref) B3C ^ (ref)



Statistic
Detect HQs >1:
ND HQs > 1 :
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
0
0
11
11
11
C

21st Street
Pond-
East
0
0
5
5
5
C

Buena
Ventura
Park Pond
0
0
4
4
4
C

Ogden
River -
Reach A
0
0
0
0
0
na

Ogden
River -
Reach B
0
0
5
5
5
C

Ogden
River -
Reach C
0
0
0
0
0
na

Weber
River -
Reach A
0
0
5
5
5
C

Weber
River -
Reach B
0
0
11
11
11
C

Weber
River -
Reach C
0
0
11
11
11
C

Weber
River -
Reach D
0
0
15
15
15
C
                                                            Based on the Chronic Toxicity Benchmark
1E+03 -i
1E+02 -
rd Quotients (HQs)
w w + +
o o o o
| 1E-03-
1E-04 -
1E-05 -


*»




t%




*



o NDHQ • Detect HQ 	 HQ=1







• 1









fe

21st St 21st St BVP Ogden Ogden Ogden Weber
Pond Reach A Reach B Reach C Reach A
(ref) (ref) (ref)

**




**




~"



Weber Weber Weber
Reach B Reach C Reach D




Statistic
Detect HQs >1:
ND HQs > 1 :
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
11
0
0
11
11
A

21st Street
Pond-
East
5
0
0
5
5
A

Buena
Ventura
Park Pond
4
0
0
4
4
A

Ogden
River -
Reach A
0
0
0
0
0
na

Ogden
River -
Reach B
5
0
0
5
5
A

Ogden
River -
Reach C
0
0
0
0
0
na

Weber
River -
Reach A
5
0
0
5
5
A

Weber
River -
Reach B
11
0
0
11
11
A

Weber
River -
Reach C
11
0
0
11
11
A

Weber
River -
Reach D
15
0
0
15
15
A
                                              A = Risk to the sub-population at this location are possible
                                              B = Risks to the sub-population at this location cannot be determined
                                              C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                                              na = No data for this chemical in this location
AquaticRisk_SW.xls: Both Graphs
1/13/2003

-------
                                                                       Appendix E-l
                                            Aquatic Receptor HQs for Direct Contact with Surface Water
                                                 Baseline Ecological Risk Assessment for the Ogden Kailyard Site
                                                                        CADMIUM

                                                             Based on the Acute Toxicity Benchmark

o ND HQ • Detect HQ ^— HQ = 1


1E+02 -
& 1E+01 -
S
| 1E+00 -
o 1E-01 -
3
? 1E-02 -

| 1E-03-
1E-04 -




0 •
%
o







•»

0







O



















Q
•f
o


















<»









ODO
OD








a.,
(DEI








on
(DO





21st St 21st St BVPPond Ogden Q den Q ^ Weber Weber Weber Weber
Pond - Pond - (ref) Reach A RtiB RhC Reach A Reach B Reach C Reach D
West East (ref) (ref)



Statistic
Detect HQs >1:
ND HQs > 1 :
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
0
0
11
9
11
C

21st Street
Pond-
East
0
0
5
4
5
C

Buena
Ventura
Park Pond
0
0
4
3
4
C

Ogden
River -
Reach A
0
0
0
0
0
na

Ogden
River -
Reach B
0
0
5
3
5
C

Ogden
River -
Reach C
0
0
0
0
0
na

Weber
River -
Reach A
0
0
5
0
5
C

Weber
River -
Reach B
0
0
11
0
11
C

Weber
River -
Reach C
0
0
11
0
11
C

Weber
River -
Reach D
0
0
15
0
15
C
                                                            Based on the Chronic Toxicity Benchmark

o NDHQ • Detect HQ 	 HQ=1

1E+02 -
ff 1E+01 -
$ 1E+00 -

1 1E-01 -
3
O'
T3 1E-02 -
S 1E-03 -
1E-04 -

0 •

o







**•

0







o



















o






















21st St 21st St BVP Ogden Ogden Ogden Weber
Pond Reach A Reach B Reach C Reach A
(ref) (ref) (ref)

O O









COD
\MJ\J








mo








Weber Weber Weber
Reach B Reach C Reach D




Statistic
Detect HQs >1:
ND HQs > 1 :
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
7
1
3
9
11
A

21st Street
Pond-
East
4
0
1
4
5
A

Buena
Ventura
Park Pond
2
1
1
3
4
A

Ogden
River -
Reach A
0
0
0
0
0
na

Ogden
River -
Reach B
3
1
1
3
5
A

Ogden
River -
Reach C
0
0
0
0
0
na

Weber
River -
Reach A
0
5
0
0
5
B

Weber
River -
Reach B
0
4
7
0
11
B

Weber
River -
Reach C
0
7
4
0
11
B

Weber
River -
Reach D
0
10
5
0
15
B
                                             A = Risk to the sub-population at this location are possible
                                             B = Risks to the sub-population at this location cannot be determined
                                             C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                                             na = No data for this chemical in this location
AquaticRisk_SW.xls: Both Graphs
1/13/2003

-------
                                                                        Appendix E-l
                                             Aquatic Receptor HQs for Direct Contact with Surface Water
                                                 Baseline Ecological Risk Assessment for the Ogden Kailyard Site
                                                                            IRON

                                                             Based on the Acute Toxicity Benchmark
1E+03 -i
1E+02 -
& 1E+01 -
| 1E+00 -
1 1E-01 -
3
? 1E-02 -
| 1E-03-
1E-04 -
IE-OS -













No


o ND HQ • Detect HQ 	 HQ = 1



Acute T




jxicity Bi




jnchmarl




. Availab





le












21st St 21st St BVPPond Ogden o den O den Weber Weber Weber Weber
Pond - Pond - (ref) Reach A R i. B R h C Reach A Reach B Reach C Reach D
West East (ref) "^ "^ (ref)



Statistic
Detect HQs >1:
ND HQs > 1 :
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
-


11
11
--

21st Street
Pond-
East
0
0
0
5
5
-

Buena
Ventura
Park Pond
-


4
4
--

Ogden
River -
Reach A
-


0
0
na

Ogden
River -
Reach B
-


4
4
--

Ogden
River -
Reach C
-


0
0
na

Weber
River -
Reach A
-


2
5
--

Weber
River -
Reach B
-


3
4
-

Weber
River -
Reach C
-


4
7
--

Weber
River -
Reach D
-


2
10
-
                                                             Based on the Chronic Toxicity Benchmark
1E+03 -i
1E+02 -
rd Quotients (HQs
w w + +
o o o o
| 1E-03-
1E-04 -
1E-05 -



s




?•



•
^


o NDHQ • Detect HQ 	 HQ=1








^0









•
HID
21st St 21st St BVP Ogden Ogden Ogden Weber
Pond Reach A Reach B Reach C Reach A
(ref) (ref) (ref)


o




t,»
QD




••
GOD


Weber Weber Weber
Reach B Reach C Reach D




Statistic
Detect HQs >1:
ND HQs > 1 :
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
0
0
11
11
11
C

21st Street
Pond-
East
0
0
5
5
5
C

Buena
Ventura
Park Pond
1
0
3
4
4
A

Ogden
River -
Reach A
0
0
0
0
0
na

Ogden
River -
Reach B
0
0
4
4
4
C

Ogden
River -
Reach C
0
0
0
0
0
na

Weber
River -
Reach A
0
0
5
2
5
C

Weber
River -
Reach B
0
0
4
3
4
C

Weber
River -
Reach C
0
0
7
4
7
C

Weber
River -
Reach D
0
0
10
2
10
C
                                              A = Risk to the sub-population at this location are possible
                                              B = Risks to the sub-population at this location cannot be determined
                                              C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                                              na = No data for this chemical in this location
AquaticRisk_SW.xls: Both Graphs
1/13/2003

-------
                                                                       Appendix E-l
                                            Aquatic Receptor HQs for Direct Contact with Surface Water
                                                 Baseline Ecological Risk Assessment for the Ogden Kailyard Site
                                                                           LEAD

                                                             Based on the Acute Toxicity Benchmark
1E+03 -i
1E+02 -
& 1E+01 -
| 1E+00 -
1 1E-01 -
? 1E-02 -
| 1E-03-
1E-04 -
IE-OS -



0
"*



&0


B

o ND HQ • Detect HQ 	 HQ = 1








CO •







o




ceo J^
c§



COD <•
O



•*/
oo w
21st St 21st St BVPPond Ogden o den O den Weber Weber Weber Weber
Pond - Pond - (ref) Reach A R i. B R h C Reach A Reach B Reach C Reach D
West East (ref) ^ "^ (ref)



Statistic
Detect HQs >1:
ND HQs > 1 :
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
0
0
11
2
11
C

21st Street
Pond-
East
0
0
5
0
5
C

Buena
Ventura
Park Pond
0
0
4
4
4
C

Ogden
River -
Reach A
0
0
0
0
0
na

Ogden
River -
Reach B
0
0
5
2
5
C

Ogden
River -
Reach C
0
0
0
0
0
na

Weber
River -
Reach A
0
0
5
0
5
C

Weber
River -
Reach B
0
0
11
5
11
C

Weber
River -
Reach C
0
0
11
4
11
C

Weber
River -
Reach D
0
0
15
5
15
C
                                                            Based on the Chronic Toxicity Benchmark
1E+03 -i
1E+02 -
rd Quotients (HQs
w w + +
o o o o
| 1E-03-
1E-04 -
1E-05 -


•
•b"




etf>



• _
'


o NDHQ • Detect HQ 	 HQ=1








•
0 o •









oco
00
21st St 21st St BVP Ogden Ogden Ogden Weber
Pond Reach A Reach B Reach C Reach A
(ref) (ref) (ref)


ooo •<
o
OD




fl& Vfe
o




 .
oo •


Weber Weber Weber
Reach B Reach C Reach D




Statistic
Detect HQs >1:
ND HQs > 1 :
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
1
0
10
2
11
C

21st Street
Pond-
East
0
0
5
0
5
C

Buena
Ventura
Park Pond
1
0
3
4
4
A

Ogden
River -
Reach A
0
0
0
0
0
na

Ogden
River -
Reach B
0
0
5
2
5
C

Ogden
River -
Reach C
0
0
0
0
0
na

Weber
River -
Reach A
0
0
5
0
5
C

Weber
River -
Reach B
0
0
11
5
11
C

Weber
River -
Reach C
0
0
11
4
11
C

Weber
River -
Reach D
0
0
15
5
15
C
                                              A = Risk to the sub-population at this location are possible
                                              B = Risks to the sub-population at this location cannot be determined
                                              C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                                              na = No data for this chemical in this location
AquaticRisk_SW.xls: Both Graphs
1/13/2003

-------
                                                                       Appendix E-l
                                            Aquatic Receptor HQs for Direct Contact with Surface Water
                                                 Baseline Ecological Risk Assessment for the Ogden Kailyard Site
                                                                         NICKEL

                                                             Based on the Acute Toxicity Benchmark
1E+03 -i
1E+02 -
& 1E+01 -
| 1E+00 -
1 1E-01 -
3
? 1E-02 -
| 1E-03-
1E-04 -
IE-OS -



•
o











0


o ND HQ • Detect HQ 	 HQ = 1










O _











oo






"§>





OH)
O





OED
OO


21st St 21st St BVPPond Ogden o den O den Weber Weber Weber Weber
Pond - Pond - (ref) Reach A R i. B R h C Reach A Reach B Reach C Reach D
West East (ref) "^ "^ (ref)



Statistic
Detect HQs >1:
ND HQs > 1 :
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
0
0
11
10
11
C

21st Street
Pond-
East
0
0
5
5
5
C

Buena
Ventura
Park Pond
0
0
4
3
4
C

Ogden
River -
Reach A
0
0
0
0
0
na

Ogden
River -
Reach B
0
0
4
3
4
C

Ogden
River -
Reach C
0
0
0
0
0
na

Weber
River -
Reach A
0
0
5
0
5
C

Weber
River -
Reach B
0
0
4
0
4
C

Weber
River -
Reach C
0
0
7
0
7
C

Weber
River -
Reach D
0
0
10
0
10
C
                                                            Based on the Chronic Toxicity Benchmark
1E+03 -i
1E+02 -
rd Quotients (HQs
w w + +
o o o o
| 1E-03-
1E-04 -
1E-05 -


•
° A




«•




Q
a


o NDHQ • Detect HQ 	 HQ=1








° •.









ODO
O O
21st St 21st St BVP Ogden Ogden Ogden Weber
Pond Reach A Reach B Reach C Reach A
(ref) (ref) (ref)


OO
o




(DO
o




aa>
o


Weber Weber Weber
Reach B Reach C Reach D




Statistic
Detect HQs >1:
ND HQs > 1 :
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
1
0
10
10
11
C

21st Street
Pond-
East
0
0
5
5
5
C

Buena
Ventura
Park Pond
0
0
4
3
4
C

Ogden
River -
Reach A
0
0
0
0
0
na

Ogden
River -
Reach B
0
0
4
3
4
C

Ogden
River -
Reach C
0
0
0
0
0
na

Weber
River -
Reach A
0
0
5
0
5
C

Weber
River -
Reach B
0
0
4
0
4
C

Weber
River -
Reach C
0
0
7
0
7
C

Weber
River -
Reach D
0
0
10
0
10
C
                                              A = Risk to the sub-population at this location are possible
                                              B = Risks to the sub-population at this location cannot be determined
                                              C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                                              na = No data for this chemical in this location
AquaticRisk_SW.xls: Both Graphs
1/13/2003

-------
                                                                       Appendix E-l
                                            Aquatic Receptor HQs for Direct Contact with Surface Water
                                                 Baseline Ecological Risk Assessment for the Ogden Kailyard Site
                                                                       SELENIUM

                                                            Based on the Acute Toxicity Benchmark
1E+03 -i
1E+02 -
& 1E+01 -
| 1E+00 -
1 1E-01 -
3
? 1E-02 -
| 1E-03-
1E-04 -
IE-OS -



°*




CD




1:
ND HQs > 1 :
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
0
0
11
0
11
C

21st Street
Pond-
East
0
0
5
2
5
C

Buena
Ventura
Park Pond
0
0
4
0
4
C

Ogden
River -
Reach A
0
0
0
0
0
na

Ogden
River -
Reach B
0
0
5
1
5
C

Ogden
River -
Reach C
0
0
0
0
0
na

Weber
River -
Reach A
0
0
5
0
5
C

Weber
River -
Reach B
0
0
11
0
11
C

Weber
River -
Reach C
0
0
11
0
11
C

Weber
River -
Reach D
0
0
15
0
15
C
                                                            Based on the Chronic Toxicity Benchmark
1E+03 -i
1E+02 -
rd Quotients (HQs
w w + +
o o o o
| 1E-03-
1E-04 -
1E-05 -



V




^
OO




OQD_


o NDHQ • Detect HQ 	 HQ=1








o •








OOD
OO
21st St 21st St BVP Ogden Ogden Ogden Weber
Pond Reach A Reach B Reach C Reach A
(ref) (ref) (ref)

0
O



GOD
OQD
O



(BOD
(BO
O O


Weber Weber Weber
Reach B Reach C Reach D




Statistic
Detect HQs >1:
ND HQs > 1 :
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
0
0
11
0
11
C

21st Street
Pond-
East
0
0
5
2
5
C

Buena
Ventura
Park Pond
0
0
4
0
4
C

Ogden
River -
Reach A
0
0
0
0
0
na

Ogden
River -
Reach B
0
0
5
1
5
C

Ogden
River -
Reach C
0
0
0
0
0
na

Weber
River -
Reach A
0
3
2
0
5
B

Weber
River -
Reach B
0
3
8
0
11
B

Weber
River -
Reach C
0
6
5
0
11
B

Weber
River -
Reach D
0
8
7
0
15
B
                                             A = Risk to the sub-population at this location are possible
                                             B = Risks to the sub-population at this location cannot be determined
                                             C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                                             na = No data for this chemical in this location
AquaticRisk_SW.xls: Both Graphs
1/13/2003

-------
                                                                       Appendix E-l
                                            Aquatic Receptor HQs for Direct Contact with Surface Water
                                                 Baseline Ecological Risk Assessment for the Ogden Kailyard Site
                                                                          SILVER

                                                             Based on the Acute Toxicity Benchmark
1E+03 -i
1E+02 -
& 1E+01 -
| 1E+00 -
1 1E-01 -
3
? 1E-02 -
| 1E-03-
1E-04 -
IE-OS -



o ^




e




o


o ND HQ • Detect HQ 	 HQ = 1








cP
o









CD





V




O




9&


21st St 21st St BVPPond Ogden o den O den Weber Weber Weber Weber
Pond - Pond - (ref) Reach A R i. B R h C Reach A Reach B Reach C Reach D
West East (ref) "^ "^ (ref)



Statistic
Detect HQs >1:
ND HQs > 1 :
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
0
0
11
4
11
C

21st Street
Pond-
East
0
0
5
3
5
C

Buena
Ventura
Park Pond
0
0
4
3
4
C

Ogden
River -
Reach A
0
0
0
0
0
na

Ogden
River -
Reach B
0
0
5
1
5
C

Ogden
River -
Reach C
0
0
0
0
0
na

Weber
River -
Reach A
0
0
2
0
2
C

Weber
River -
Reach B
0
0
10
0
10
C

Weber
River -
Reach C
0
0
9
0
9
C

Weber
River -
Reach D
0
0
11
o
11
C
                                                            Based on the Chronic Toxicity Benchmark
1E+03 -i
1E+02 -
rd Quotients (HQs
w w + +
o o o o
| 1E-03-
1E-04 -
1E-05 -













No


o NDHQ • Detect HQ 	 HQ=1



Chronic




Toxicity




Benchnii




rk Avail


21st St 21st St BVP Ogden Ogden Ogden Weber
Pond Reach A Reach B Reach C Reach A
(ref) (ref) (ref)




able












Weber Weber Weber
Reach B Reach C Reach D




Statistic
Detect HQs >1:
ND HQs > 1 :
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
-


4
11


21st Street
Pond-
East
0
0
0
3
5
A

Buena
Ventura
Park Pond
-


3
4


Ogden
River -
Reach A
-


0
0
na

Ogden
River -
Reach B
-


1
5


Ogden
River -
Reach C
-


0
0
na

Weber
River -
Reach A
-


0
2


Weber
River -
Reach B
-


0
10


Weber
River -
Reach C
-


0
9


Weber
River -
Reach D
-


0
11

                                             A = Risk to the sub-population at this location are possible
                                             B = Risks to the sub-population at this location cannot be determined
                                             C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                                             na = No data for this chemical in this location
AquaticRisk_SW.xls: Both Graphs
1/13/2003

-------
                                                                        Appendix E-l
                                             Aquatic Receptor HQs for Direct Contact with Surface Water
                                                 Baseline Ecological Risk Assessment for the Ogden Kailyard Site
                                                                            ZINC

                                                             Based on the Acute Toxicity Benchmark
1E+03 -i
1E+02 -
& 1E+01 -
| 1E+00 -
1 1E-01 -
3
? 1E-02 -
| 1E-03-
1E-04 -
IE-OS -


•
*•>



» '



•

o ND HQ • Detect HQ 	 HQ = 1







OP '







00
oo




o



1: ND HQs > 1 : All HQs <1: Detect Samples: All Samples: Risk Category: 21st Street Pond- West 1 0 10 1 11 C 21st Street Pond- East 0 0 5 1 5 C Buena Ventura Park Pond 0 0 4 2 4 C Ogden River - Reach A 0 0 0 0 0 na Ogden River - Reach B 0 0 4 1 4 C Ogden River - Reach C 0 0 0 0 0 na Weber River - Reach A 0 0 5 0 5 C Weber River - Reach B 0 0 4 0 4 C Weber River - Reach C 0 0 7 0 7 C Weber River - Reach D 0 0 10 0 10 C Based on the Chronic Toxicity Benchmark 1E+03 -i 1E+02 - rd Quotients (HQs w w + + o o o o | 1E-03- 1E-04 - 1E-05 - • <*9 OO 00 o NDHQ • Detect HQ HQ=1 QD OP oo 21st St 21st St BVP Ogden Ogden Ogden Weber Pond Reach A Reach B Reach C Reach A (ref) (ref) (ref) OO O COD O oo Weber Weber Weber Reach B Reach C Reach D Statistic Detect HQs >1: ND HQs > 1 : All HQs <1: Detect Samples: All Samples: Risk Category: 21st Street Pond- West 1 0 10 1 11 C 21st Street Pond- East 0 0 5 1 5 C Buena Ventura Park Pond 0 0 4 2 4 C Ogden River - Reach A 0 0 0 0 0 na Ogden River - Reach B 0 0 4 1 4 C Ogden River - Reach C 0 0 0 0 0 na Weber River - Reach A 0 0 5 0 5 C Weber River - Reach B 0 0 4 0 4 C Weber River - Reach C 0 0 7 0 7 C Weber River - Reach D 0 0 10 0 10 C A = Risk to the sub-population at this location are possible B = Risks to the sub-population at this location cannot be determined C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable na = No data for this chemical in this location AquaticRisk_SW.xls: Both Graphs 1/13/2003

-------
                                                                     Appendix E-l
                                           Aquatic Receptor HQs for Direct Contact with Surface Water
                                               Baseline Ecological Risk Assessment for the Ogden Kailyard Site
                                                                 ACENAPHTHENE

                                                           Based on the Acute Toxicity Benchmark
1E+03 -i
1E+02 -
& 1E+01 -
| 1E+00 -
1 1E-01 -

? 1E-02 -
| 1E-03-
1E-04 -
IE-OS -




o
OBD



*

00 •




o
oo

o ND HQ • Detect HQ ^— HQ = 1










o
ooo
OBD










ODD
QD





«••>





ODD
O




OBD
^ •

21st St 21st St BVPPond Ogden o den O den Weber Weber Weber Weber
Pond - Pond - (ref) Reach A R i. B R h C Reach A Reach B Reach C Reach D
West East (ref) "^ "^ (ref)



Statistic
Detect HQs >1:
ND HQs > 1 :
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
0
0
14
2
14
C

21st Street
Pond-
East
0
0
7
5
7
C

Buena
Ventura
Park Pond
0
0
4
0
4
C

Ogden
River -
Reach A
0
0
0
0
0
na

Ogden
River -
Reach B
0
0
8
0
8
C

Ogden
River -
Reach C
0
0
0
0
0
na

Weber
River -
Reach A
0
0
5
0
5
C

Weber
River -
Reach B
0
0
11
0
11
C

Weber
River -
Reach C
0
0
11
0
11
C

Weber
River -
Reach D
0
0
17
1
17
C
                                                          Based on the Chronic Toxicity Benchmark
1E+03 -i
1E+02 -
rd Quotients (HQs
w w + +
o o o o
| 1E-03-
1E-04 -
1E-05 -



O O
am
M



•
•
03 •
^




O
era


o NDHQ • Detect HQ 	 HQ=1








CO
OOD
OOD









ODD
O
21st St 21st St BVP Ogden Ogden Ogden Weber
Pond Reach A Reach B Reach C Reach A
(ref) (ret) (ref)


•"




(•D
0




ODD
ff> *


Weber Weber Weber
Reach B Reach C Reach D




Statistic
Detect HQs >1:
ND HQs > 1 :
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
0
0
14
2
14
C

21st Street
Pond-
East
1
0
6
5
7
C

Buena
Ventura
Park Pond
0
0
4
0
4
C

Ogden
River -
Reach A
0
0
0
0
0
na

Ogden
River -
Reach B
0
0
8
0
8
C

Ogden
River -
Reach C
0
0
0
0
0
na

Weber
River -
Reach A
0
0
5
0
5
C

Weber
River -
Reach B
0
0
11
0
11
C

Weber
River -
Reach C
0
0
11
0
11
C

Weber
River -
Reach D
0
0
17
1
17
C
                                            A = Risk to the sub-population at this location are possible
                                            B = Risks to the sub-population at this location cannot be determined
                                            C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                                            na = No data for this chemical in this location
AquaticRisk_SW.xls: Both Graphs
1/13/2003

-------
                                                                      Appendix E-l
                                            Aquatic Receptor HQs for Direct Contact with Surface Water
                                                Baseline Ecological Risk Assessment for the Ogden Kailyard Site
                                                                    ANTHRACENE

                                                            Based on the Acute Toxicity Benchmark
1E+03 -i
1E+02 -
& 1E+01 -
| 1E+00 -
o 1E-01 -
3
? 1E-02 -
1 1E-03 -
1E-04 -
IE-OS -



00
ODD





"
00 .





0
ooo



o ND HQ • Detect HQ 	 HQ = 1










0
OD












0 0
OD






0»






•B
O





(DO
OOO



21st St 21st St BVPPond Ogden o den O den Weber Weber Weber Weber
Pond - Pond - (ref) Reach A R i. B R h C Reach A Reach B Reach C Reach D
West East (ref) "^ "^ (ref)



Statistic
Detect HQs >1:
ND HQs > 1 :
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
0
0
14
0
14
C

21st Street
Pond-
East
0
0
7
2
7
C

Buena
Ventura
Park Pond
0
0
4
0
4
C

Ogden
River -
Reach A
0
0
0
0
0
na

Ogden
River -
Reach B
0
0
8
0
8
C

Ogden
River -
Reach C
0
0
0
0
0
na

Weber
River -
Reach A
0
0
5
0
5
C

Weber
River -
Reach B
0
0
11
0
11
C

Weber
River -
Reach C
0
0
11
0
11
C

Weber
River -
Reach D
0
0
17
0
17
C
                                                           Based on the Chronic Toxicity Benchmark
1E+03 -i
1E+02 -
rd Quotients (HQs
w w + +
o o o o
| 1E-03 -
1E-04 -
1E-05 -


OO









O



o NDHQ • Detect HQ 	 HQ=1







OD









O

21st St 21st St BVP Ogden Ogden Ogden Weber
Pond Reach A Reach B Reach C Reach A
(ref) (ref) (ref)

«




-




-



Weber Weber Weber
Reach B Reach C Reach D




Statistic
Detect HQs >1:
ND HQs > 1 :
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
0
2
12
0
14
C

21st Street
Pond-
East
1
0
6
2
7
C

Buena
Ventura
Park Pond
0
1
3
0
4
B

Ogden
River -
Reach A
0
0
0
0
0
na

Ogden
River -
Reach B
0
2
6
0
8
B

Ogden
River -
Reach C
0
0
0
0
0
na

Weber
River -
Reach A
0
3
2
0
5
B

Weber
River -
Reach B
0
11
0
0
11
B

Weber
River -
Reach C
0
10
1
0
11
B

Weber
River -
Reach D
0
9
8
0
17
B
                                             A = Risk to the sub-population at this location are possible
                                             B = Risks to the sub-population at this location cannot be determined
                                             C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                                             na = No data for this chemical in this location
AquaticRisk_SW.xls: Both Graphs
1/13/2003

-------
                                                                     Appendix E-l
                                           Aquatic Receptor HQs for Direct Contact with Surface Water
                                               Baseline Ecological Risk Assessment for the Ogden Kailyard Site
                                                             BENZO[A]ANTHRACENE

                                                           Based on the Acute Toxicity Benchmark
1E+03 -i
1E+02 -
& 1E+01 -
| 1E+00 -
1 1E-01 -
3
? 1E-02 -
| 1E-03-
1E-04 -
IE-OS -


o
rm





0



0
n n



o ND HQ • Detect HQ 	 HQ = 1







00









GO
nn





OBO




BD
n




HMO



21st St 21st St BVPPond Ogden o den O den Weber Weber Weber Weber
Pond - Pond - (ref) Reach A R i. B R h C Reach A Reach B Reach C Reach D
West East (ref) "^ "^ (ref)



Statistic
Detect HQs >1:
ND HQs > 1 :
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
0
14
0
0
14
B

21st Street
Pond-
East
0
5
2
2
7
B

Buena
Ventura
Park Pond
0
4
0
0
4
B

Ogden
River -
Reach A
0
0
0
0
0
na

Ogden
River -
Reach B
0
8
0
0
8
B

Ogden
River -
Reach C
0
0
0
0
0
na

Weber
River -
Reach A
0
5
0
0
5
B

Weber
River -
Reach B
0
11
0
0
11
B

Weber
River -
Reach C
0
11
0
0
11
B

Weber
River -
Reach D
0
17
0
0
17
B
                                                          Based on the Chronic Toxicity Benchmark
1E+03 -i
1E+02 -
/— v
rd Quotients (HQ
F F + +
o o o o
| 1E-03-
1E-04 -
1E-05 -

00
QD>





ODO
%
9



0
o




o NDHQ • Detect HQ 	 HQ=1







0
ODD










CD
o






21st St 21st St BVP Ogden Ogden Ogden Weber
Pond Reach A Reach B Reach C Reach A
(ref) (ref) (ref)
CBD





„
o




«
on




Weber Weber Weber
Reach B Reach C Reach D




Statistic
Detect HQs >1:
ND HQs > 1 :
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
0
14
0
0
14
B

21st Street
Pond-
East
2
5
0
2
7
A

Buena
Ventura
Park Pond
0
4
0
0
4
B

Ogden
River -
Reach A
0
0
0
0
0
na

Ogden
River -
Reach B
0
8
0
0
8
B

Ogden
River -
Reach C
0
0
0
0
0
na

Weber
River -
Reach A
0
5
0
0
5
B

Weber
River -
Reach B
0
11
0
0
11
B

Weber
River -
Reach C
0
11
0
0
11
B

Weber
River -
Reach D
0
17
0
0
17
B
                                            A = Risk to the sub-population at this location are possible
                                            B = Risks to the sub-population at this location cannot be determined
                                            C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                                            na = No data for this chemical in this location
AquaticRisk_SW.xls: Both Graphs
1/13/2003

-------
                                                                     Appendix E-l
                                           Aquatic Receptor HQs for Direct Contact with Surface Water
                                                Baseline Ecological Risk Assessment for the Ogden RailyardSite
                                                                 BENZO[A]PYRENE

                                                           Based on the Acute Toxicity Benchmark
1E+03 -i
1E+02 -
& 1E+01 -
| 1E+00 -
1 1E-01 -
3
? 1E-02 -
| 1E-03-
1E-04 -
IE-OS -


0
OOOD
fffi




OO
"



0
OO



o ND HQ • Detect HQ 	 HQ = 1







CD
CD









00
(ffi





OD




O




mo



21st St 21st St BVPPond Ogden o den O den Weber Weber Weber Weber
Pond - Pond - (ref) Reach A R i. B R h C Reach A Reach B Reach C Reach D
West East (ref) "^ "^ (ref)



Statistic
Detect HQs >1:
ND HQs > 1 :
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
0
14
0
0
14
B

21st Street
Pond-
East
0
5
2
2
7
B

Buena
Ventura
Park Pond
0
4
0
0
4
B

Ogden
River -
Reach A
0
0
0
0
0
na

Ogden
River -
Reach B
0
8
0
0
8
B

Ogden
River -
Reach C
0
0
0
0
0
na

Weber
River -
Reach A
0
5
0
0
5
B

Weber
River -
Reach B
0
11
0
0
11
B

Weber
River -
Reach C
0
11
0
0
11
B

Weber
River -
Reach D
0
17
0
0
17
B
                                                           Based on the Chronic Toxicity Benchmark
1E+03 -i
1E+02 -
rd Quotients (HQ
w w + +
o o o o
| 1E-03-
1E-04 -
1E-05 -

OO
com
OO





0»
•



o
OO




o NDHQ • Detect HQ 	 HQ=1







o
CD
OO










00
o






21st St 21st St BVP Ogden Ogden Ogden Weber
Pond Reach A Reach B Reach C Reach A
(ref) (ref) (ref)
«DO





•
O




OB
°w




Weber Weber Weber
Reach B Reach C Reach D




Statistic
Detect HQs >1:
ND HQs > 1 :
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
0
14
0
0
14
B

21st Street
Pond-
East
2
5
0
2
7
A

Buena
Ventura
Park Pond
0
4
0
0
4
B

Ogden
River -
Reach A
0
0
0
0
0
na

Ogden
River -
Reach B
0
8
0
0
8
B

Ogden
River -
Reach C
0
0
0
0
0
na

Weber
River -
Reach A
0
5
0
0
5
B

Weber
River -
Reach B
0
11
0
0
11
B

Weber
River -
Reach C
0
11
0
0
11
B

Weber
River -
Reach D
0
17
0
0
17
B
                                             A = Risk to the sub-population at this location are possible
                                             B = Risks to the sub-population at this location cannot be determined
                                             C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                                             na = No data for this chemical in this location
AquaticRisk_SW.xls:  Both Graphs
1/13/2003

-------
                                                                       Appendix E-l
                                            Aquatic Receptor HQs for Direct Contact with Surface Water
                                                Baseline Ecological Risk Assessment for the Ogden Kailyard Site
                                                                       FLUORENE

                                                            Based on the Acute Toxicity Benchmark
1E+03 -i
1E+02 -
& 1E+01 -
| 1E+00 -
1 1E-01 -
3
? 1E-02 -
| 1E-03-
1E-04 -
IE-OS -



o
00




,





0
oo


o ND HQ • Detect HQ 	 HQ = 1









00
00
GOD










o
oo





am,





OB
O




OKI
°JS>


21st St 21st St BVPPond Ogden o den O den Weber Weber Weber Weber
Pond - Pond - (ref) Reach A R i. B R h C Reach A Reach B Reach C Reach D
West East (ref) "^ "^ (ref)



Statistic
Detect HQs >1:
ND HQs > 1 :
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
0
0
14
0
14
C

21st Street
Pond-
East
0
0
7
2
7
C

Buena
Ventura
Park Pond
0
0
4
0
4
C

Ogden
River -
Reach A
0
0
0
0
0
na

Ogden
River -
Reach B
0
0
8
0
8
C

Ogden
River -
Reach C
0
0
0
0
0
na

Weber
River -
Reach A
0
0
5
0
5
C

Weber
River -
Reach B
0
0
11
0
11
C

Weber
River -
Reach C
0
0
11
0
11
C

Weber
River -
Reach D
0
0
17
0
17
C
                                                           Based on the Chronic Toxicity Benchmark
1E+03 -i
1E+02 -
rd Quotients (HQs
w w + +
o o o o
| 1E-03-
1E-04 -
1E-05 -



O



•
OO




(D)


o NDHQ • Detect HQ 	 HQ=1








o
o o









o
21st St 21st St BVP Ogden Ogden Ogden Weber
Pond Reach A Reach B Reach C Reach A
(ref) (ref) (ref)







O




@p


Weber Weber Weber
Reach B Reach C Reach D




Statistic
Detect HQs >1:
ND HQs > 1 :
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
0
0
14
0
14
C

21st Street
Pond-
East
1
0
6
2
7
C

Buena
Ventura
Park Pond
0
0
4
0
4
C

Ogden
River -
Reach A
0
0
0
0
0
na

Ogden
River -
Reach B
0
0
8
0
8
C

Ogden
River -
Reach C
0
0
0
0
0
na

Weber
River -
Reach A
0
0
5
0
5
C

Weber
River -
Reach B
0
0
11
0
11
C

Weber
River -
Reach C
0
0
11
0
11
C

Weber
River -
Reach D
0
0
17
0
17
C
                                             A = Risk to the sub-population at this location are possible
                                             B = Risks to the sub-population at this location cannot be determined
                                             C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                                             na = No data for this chemical in this location
AquaticRisk_SW.xls: Both Graphs
1/13/2003

-------
                                                                     Appendix E-l
                                           Aquatic Receptor HQs for Direct Contact with Surface Water
                                                Baseline Ecological Risk Assessment for the Ogden Kailyard Site
                                                                   NAPHTHALENE

                                                           Based on the Acute Toxicity Benchmark
1E+03 -i
1E+02 -
& 1E+01 -
| 1E+00 -
1 1E-01 -
o*
, 1E-02 -
| 1E-03-
1E-04 -
IE-OS -




oo
OBD
O


u
«

OO




o
o

o ND HQ • Detect HQ ^— HQ = 1










OO
OOD
o










HID
.<





on
o




amm
O
o




mm
*8

21st St 21st St BVPPond Ogden o den O den Weber Weber Weber Weber
Pond - Pond - (ref) Reach A R i. B R h C Reach A Reach B Reach C Reach D
West East (ref) "^ "^ (ref)



Statistic
Detect HQs >1:
ND HQs > 1 :
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
0
0
15
0
15
C

21st Street
Pond-
East
1
0
6
3
7
C

Buena
Ventura
Park Pond
0
0
5
0
5
C

Ogden
River -
Reach A
0
0
0
0
0
na

Ogden
River -
Reach B
0
0
9
0
9
C

Ogden
River -
Reach C
0
0
0
0
0
na

Weber
River -
Reach A
0
0
7
0
7
C

Weber
River -
Reach B
0
0
12
0
12
C

Weber
River -
Reach C
0
0
12
0
12
C

Weber
River -
Reach D
0
0
19
1
19
C
                                                          Based on the Chronic Toxicity Benchmark
1E+03 -i
1E+02 -
rd Quotients (HQs
w w + +
o o o o
| 1E-03-
1E-04 -
1E-05 -



OD
O



.
0




O
GOO
O


o NDHQ • Detect HQ 	 HQ=1








o
GOD
O









OOP
GO
©
21st St 21st St BVP Ogden Ogden Ogden Weber
Pond Reach A Reach B Reach C Reach A
(ref) (ref) (ref)


O




O
o




OK>
H>
^m


Weber Weber Weber
Reach B Reach C Reach D




Statistic
Detect HQs >1:
ND HQs > 1 :
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
0
0
15
0
15
C

21st Street
Pond-
East
2
0
5
3
7
A

Buena
Ventura
Park Pond
0
0
5
0
5
C

Ogden
River -
Reach A
0
0
0
0
0
na

Ogden
River -
Reach B
0
0
9
0
9
C

Ogden
River -
Reach C
0
0
0
0
0
na

Weber
River -
Reach A
0
0
7
0
7
C

Weber
River -
Reach B
0
0
12
0
12
C

Weber
River -
Reach C
0
0
12
0
12
C

Weber
River -
Reach D
0
0
19
1
19
C
                                            A = Risk to the sub-population at this location are possible
                                            B = Risks to the sub-population at this location cannot be determined
                                            C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                                            na = No data for this chemical in this location
AquaticRisk_SW.xls:  Both Graphs
1/13/2003

-------
                                                                      Appendix E-l
                                            Aquatic Receptor HQs for Direct Contact with Surface Water
                                                Baseline Ecological Risk Assessment for the Ogden Kailyard Site
                                                                         PYRENE

                                                            Based on the Acute Toxicity Benchmark
1E+03 -i
1E+02 -
& 1E+01 -
| 1E+00 -
1 1E-01 -
3
? 1E-02 -
| 1E-03-
1E-04 -
IE-OS -













No


o ND HQ • Detect HQ 	 HQ = 1



Acute T




jxicity Bi




jnchmarl




. Availab





le












21st St 21st St BVPPond Ogden o den O den Weber Weber Weber Weber
Pond - Pond - (ref) Reach A R i. B R h C Reach A Reach B Reach C Reach D
West East (ref) "^ "^ (ref)



Statistic
Detect HQs >1:
ND HQs > 1 :
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
-


1
14
--

21st Street
Pond-
East
0
0
0
4
7
-

Buena
Ventura
Park Pond
-


0
4
--

Ogden
River -
Reach A
-


0
0
na

Ogden
River -
Reach B
-


0
8
--

Ogden
River -
Reach C
-


0
0
na

Weber
River -
Reach A
-


0
5
--

Weber
River -
Reach B
-


0
11
-

Weber
River -
Reach C
-


0
11
--

Weber
River -
Reach D
-


0
17
-
                                                           Based on the Chronic Toxicity Benchmark
1E+03 -i
1E+02 -
3 1E+01 -
| 1E+00 -
1 1E-01 -
3
% 1E-02 -
C3
| 1E-03 -
1E-04 -
1E-05 -

00




OD ^




0
QD




o NDHQ • Detect HQ 	 HQ=1






00
ODO










0
OD

21st St 21st St BVP Ogden Ogden Ogden Weber
Pond Reach A Reach B Reach C Reach A
(ref) (ref) (ref)
•>




o




OB




Weber Weber Weber
Reach B Reach C Reach D




Statistic
Detect HQs >1:
ND HQs > 1 :
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
1
13
0
1
14
B

21st Street
Pond-
East
4
3
0
4
7
A

Buena
Ventura
Park Pond
0
4
0
0
4
B

Ogden
River -
Reach A
0
0
0
0
0
na

Ogden
River -
Reach B
0
8
0
0
8
B

Ogden
River -
Reach C
0
0
0
0
0
na

Weber
River -
Reach A
0
5
0
0
5
B

Weber
River -
Reach B
0
11
0
0
11
B

Weber
River -
Reach C
0
11
0
0
11
B

Weber
River -
Reach D
0
17
0
0
17
B
                                             A = Risk to the sub-population at this location are possible
                                             B = Risks to the sub-population at this location cannot be determined
                                             C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                                             na = No data for this chemical in this location
AquaticRisk_SW.xls: Both Graphs
1/13/2003

-------
                                                                    Appendix E-l
                                          Aquatic Receptor HQs for Direct Contact with Surface Water
                                              Baseline Ecological Risk Assessment for the Ogden Kailyard Site
                                                       BIS(2-ETHYLHEXYL)PHTHALATE

                                                          Based on the Acute Toxicity Benchmark

o ND HQ • Detect HQ 	 HQ = 1


1E+02 -
& 1E+01 -
S
| 1E+00 -
1 1E-01 -
3

, 1E-02 -
| 1E-03-
1E-04 -





OO
O

&
ODO






O

80
OO





o


°%
















OO


00
o















o
QD








OQD
0








ono


o






ODD •
OO •*

0%


21st St 21st St BVPPond Ogden o den O den Weber Weber Weber Weber
Pond - Pond - (ref) Reach A R i. B R h C Reach A Reach B Reach C Reach D
West East (ref) (ref)



Statistic
Detect HQs >1:
ND HQs > 1 :
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
0
0
14
0
14
C

21st Street
Pond-
East
0
0
7
0
7
C

Buena
Ventura
Park Pond
0
0
4
0
4
C

Ogden
River -
Reach A
0
0
0
0
0
na

Ogden
River -
Reach B
0
0
5
0
5
C

Ogden
River -
Reach C
0
0
0
0
0
na

Weber
River -
Reach A
0
0
5
0
5
C

Weber
River -
Reach B
0
0
11
1
11
C

Weber
River -
Reach C
0
0
11
0
11
C

Weber
River -
Reach D
0
0
17
3
17
C
                                                         Based on the Chronic Toxicity Benchmark
1E+03 -i
1E+02 -
rd Quotients (HQs
w w + +
o o o o
| 1E-03-
1E-04 -
1E-05 -



O
doS
oo>




o
6*0
0




0*


o NDHQ • Detect HQ 	 HQ=1








00
o









o o
21st St 21st St BVP Ogden Ogden Ogden Weber
Pond Reach A Reach B Reach C Reach A
(ref) (ref) (ref)


•




0




00 *•
°0>


Weber Weber Weber
Reach B Reach C Reach D




Statistic
Detect HQs >1:
ND HQs > 1 :
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
0
2
12
0
14
C

21st Street
Pond-
East
0
0
7
0
7
C

Buena
Ventura
Park Pond
0
1
3
0
4
B

Ogden
River -
Reach A
0
0
0
0
0
na

Ogden
River -
Reach B
0
2
3
0
5
B

Ogden
River -
Reach C
0
0
0
0
0
na

Weber
River -
Reach A
0
3
2
0
5
B

Weber
River -
Reach B
0
10
1
1
11
B

Weber
River -
Reach C
0
10
1
0
11
B

Weber
River -
Reach D
1
6
10
3
17
B
                                           A = Risk to the sub-population at this location are possible
                                           B = Risks to the sub-population at this location cannot be determined
                                           C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                                           na = No data for this chemical in this location
AquaticRisk_SW.xls: Both Graphs
1/13/2003

-------
                                                                       Appendix E-l
                                            Aquatic Receptor HQs for Direct Contact with Surface Water
                                                 Baseline Ecological Risk Assessment for the Ogden Kailyard Site
                                                                        ACETONE

                                                             Based on the Acute Toxicity Benchmark
1E+03 -i
1E+02 -
& 1E+01 -
| 1E+00 -
1 1E-01 -
3
? 1E-02 -
| 1E-03-
1E-04 -
IE-OS -





-









0
o ND HQ • Detect HQ 	 HQ = 1










• .









8bo .



B

ODD .
OOD • _




ooo
OD •


•

COD ..
21st St 21st St BVPPond Ogden o den O den Weber Weber Weber Weber
Pond - Pond - (ref) Reach A R i. B R h C Reach A Reach B Reach C Reach D
West East (ref) ^ "^ (ref)



Statistic
Detect HQs >1:
ND HQs > 1 :
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
0
0
4
0
4
C

21st Street
Pond-
East
0
0
0
0
0
na

Buena
Ventura
Park Pond
0
0
1
0
1
C

Ogden
River -
Reach A
0
0
0
0
0
na

Ogden
River -
Reach B
0
0
3
1
3
C

Ogden
River -
Reach C
0
0
0
0
0
na

Weber
River -
Reach A
0
0
5
1
5
C

Weber
River -
Reach B
0
0
17
6
17
C

Weber
River -
Reach C
0
0
11
1
11
C

Weber
River -
Reach D
0
0
20
4
20
C
                                                            Based on the Chronic Toxicity Benchmark
1E+03 -i
1E+02 -
3 1E+01 -
| 1E+00 -
v
1 1E-01 -
3
% 1E-02 -
| 1E-03-
1E-04 -
1E-05 -




«»









o

o NDHQ • Detect HQ 	 HQ=1









O ®








9m .
21st St 21st St BVP Ogden Ogden Ogden Weber
Pond Reach A Reach B Reach C Reach A
(ref) (ref) (ref)


.
am .
OO& mf




CO


B

™ •

Weber Weber Weber
Reach B Reach C Reach D




Statistic
Detect HQs >1:
ND HQs > 1 :
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
0
0
4
0
4
C

21st Street
Pond-
East
0
0
0
0
0
na

Buena
Ventura
Park Pond
0
0
1
0
1
C

Ogden
River -
Reach A
0
0
0
0
0
na

Ogden
River -
Reach B
0
0
3
1
3
C

Ogden
River -
Reach C
0
0
0
0
0
na

Weber
River -
Reach A
0
0
5
1
5
C

Weber
River -
Reach B
0
0
17
6
17
C

Weber
River -
Reach C
0
0
11
1
11
C

Weber
River -
Reach D
1
0
19
4
20
C
                                              A = Risk to the sub-population at this location are possible
                                              B = Risks to the sub-population at this location cannot be determined
                                              C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                                              na = No data for this chemical in this location
AquaticRisk_SW.xls: Both Graphs
1/13/2003

-------
                                                                      Appendix E-l
                                           Aquatic Receptor HQs for Direct Contact with Surface Water
                                                Baseline Ecological Risk Assessment for the Ogden Kailyard Site
                                                                CARBON DISULFIDE

                                                           Based on the Acute Toxicity Benchmark
1E+03 -i
1E+02 -
& 1E+01 -
| 1E+00 -
1 1E-01 -
3
? 1E-02 -
| 1E-03-
1E-04 -
IE-OS -



00



ooo



ODO

o ND HQ • Detect HQ 	 HQ = 1







0
ODD







oo




cm>
(DO



0



am

21st St 21st St BVPPond Ogden o den O den Weber Weber Weber Weber
Pond - Pond - (ref) Reach A R i. B R h C Reach A Reach B Reach C Reach D
West East (ref) "^ "^ (ref)



Statistic
Detect HQs >1:
ND HQs > 1 :
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
0
0
14
0
14
C

21st Street
Pond-
East
0
0
5
0
5
C

Buena
Ventura
Park Pond
0
0
4
0
4
C

Ogden
River -
Reach A
0
0
0
0
0
na

Ogden
River -
Reach B
0
0
8
0
8
C

Ogden
River -
Reach C
0
0
0
0
0
na

Weber
River -
Reach A
0
0
5
0
5
C

Weber
River -
Reach B
0
0
17
1
17
C

Weber
River -
Reach C
0
0
11
0
11
C

Weber
River -
Reach D
0
0
20
0
20
C
                                                           Based on the Chronic Toxicity Benchmark
1E+03 -i
1E+02 -
rd Quotients (HQs
w w + +
o o o o
| 1E-03-
1E-04 -
1E-05 -


CD





BO




CD


o NDHQ • Detect HQ 	 HQ=1







o
ODD









ODD
21st St 21st St BVP Ogden Ogden Ogden Weber
Pond Reach A Reach B Reach C Reach A
(ref) (ret) (ref)

	
OD>



OQGD
no



OD



Weber Weber Weber
Reach B Reach C Reach D




Statistic
Detect HQs >1:
ND HQs > 1 :
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
0
3
11
0
14
B

21st Street
Pond-
East
0
0
5
0
5
C

Buena
Ventura
Park Pond
0
0
4
0
4
C

Ogden
River -
Reach A
0
0
0
0
0
na

Ogden
River -
Reach B
0
1
7
0
8
C

Ogden
River -
Reach C
0
0
0
0
0
na

Weber
River -
Reach A
0
0
5
0
5
C

Weber
River -
Reach B
0
12
5
1
17
B

Weber
River -
Reach C
0
4
7
0
11
B

Weber
River -
Reach D
0
10
10
0
20
B
                                             A = Risk to the sub-population at this location are possible
                                             B = Risks to the sub-population at this location cannot be determined
                                             C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                                             na = No data for this chemical in this location
AquaticRisk_SW.xls:  Both Graphs
1/13/2003

-------
                                                                      Appendix E-l
                                            Aquatic Receptor HQs for Direct Contact with Surface Water
                                                Baseline Ecological Risk Assessment for the Ogden Kailyard Site
                                                                DICHLOROMETHANE

                                                            Based on the Acute Toxicity Benchmark

o ND HQ • Detect HQ 	 HQ = 1


1E+02 -
& 1E+01 -
S
| 1E+00 -
o>
o 1E-01 -
3
? 1E-02 -

| 1E-03-
1E-04 -











*„
^BD










COD










00




















•
no





















ODD




p

\

f
° ^f
ODD









° F
OB




^




(DO »^
1^
21st St 21st St BVPPond Ogden o den O den Weber Weber Weber Weber
Pond - Pond - (ref) Reach A R i. B R h C Reach A Reach B Reach C Reach D
West East (ref) (ref)



Statistic
Detect HQs >1:
ND HQs > 1 :
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
0
0
14
3
14
C

21st Street
Pond-
East
0
0
5
0
5
C

Buena
Ventura
Park Pond
0
0
4
0
4
C

Ogden
River -
Reach A
0
0
0
0
0
na

Ogden
River -
Reach B
0
0
8
1
8
C

Ogden
River -
Reach C
0
0
0
0
0
na

Weber
River -
Reach A
0
0
5
0
5
C

Weber
River -
Reach B
0
0
17
12
17
C

Weber
River -
Reach C
0
0
11
3
11
C

Weber
River -
Reach D
0
0
20
7
20
C
                                                           Based on the Chronic Toxicity Benchmark
1E+03 -i
1E+02 -
rd Quotients (HQs
w w + +
o o o o
| 1E-03-
1E-04 -
1E-05 -




•
•











o NDHQ • Detect HQ 	 HQ=1









•









21st St 21st St BVP Ogden Ogden Ogden Weber
Pond Reach A Reach B Reach C Reach A
(ref) (ref) (ref)

f
.«
O •




O 0


••

A to—

Weber Weber Weber
Reach B Reach C Reach D




Statistic
Detect HQs >1:
ND HQs > 1 :
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
0
0
14
3
14
C

21st Street
Pond-
East
0
0
5
0
5
C

Buena
Ventura
Park Pond
0
0
4
0
4
C

Ogden
River -
Reach A
0
0
0
0
0
na

Ogden
River -
Reach B
0
0
8
1
8
C

Ogden
River -
Reach C
0
0
0
0
0
na

Weber
River -
Reach A
0
0
5
0
5
C

Weber
River -
Reach B
2
0
15
12
17
C

Weber
River -
Reach C
0
0
11
3
11
C

Weber
River -
Reach D
2
0
18
7
20
C
                                             A = Risk to the sub-population at this location are possible
                                             B = Risks to the sub-population at this location cannot be determined
                                             C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                                             na = No data for this chemical in this location
AquaticRisk_SW.xls: Both Graphs
1/13/2003

-------
                                                                     Appendix E-l
                                           Aquatic Receptor HQs for Direct Contact with Surface Water
                                               Baseline Ecological Risk Assessment for the Ogden RailyardSite
                                                                  ETHYLBENZENE

                                                           Based on the Acute Toxicity Benchmark
1E+03 -i
1E+02 -
& 1E+01 -
| 1E+00 -
1 1E-01 -
? 1E-02 -
1 1E-03 -
1E-04 -
IE-OS -




OD




OOD




ODD

o ND HQ • Detect HQ 	 HQ = 1









o
turn









1:
ND HQs > 1 :
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
0
0
14
1
14
C

21st Street
Pond-
East
0
0
5
0
5
C

Buena
Ventura
Park Pond
0
0
4
0
4
C

Ogden
River -
Reach A
0
0
0
0
0
na

Ogden
River -
Reach B
0
0
8
0
8
C

Ogden
River -
Reach C
0
0
0
0
0
na

Weber
River -
Reach A
0
0
5
0
5
C

Weber
River -
Reach B
0
0
17
1
17
C

Weber
River -
Reach C
0
0
11
0
11
C

Weber
River -
Reach D
0
0
20
0
20
C
                                                          Based on the Chronic Toxicity Benchmark
1E+03 -i
1E+02 -
rd Quotients (HQs
w w + +
o o o o
| 1E-03-
1E-04 -
1E-05 -



OO




ODD


o ND HQ • Detect HQ 	 HQ = 1


COD







o









CD
21st St 21st St BVPPond Ogden Ogden Ogden Weber
Pond - Pond - (ref)
West East
Reach A ReachB Reach C Reach A
(ref) (ref)


OM>
ODD




000
OOD




ami


Weber Weber Weber
Reach B Reach C Reach D




Statistic
Detect HQs >1:
ND HQs > 1 :
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
0
0
14
1
14
C

21st Street
Pond-
East
0
0
5
0
5
C

Buena
Ventura
Park Pond
0
0
4
0
4
C

Ogden
River -
Reach A
0
0
0
0
0
na

Ogden
River -
Reach B
0
0
8
0
8
C

Ogden
River -
Reach C
0
0
0
0
0
na

Weber
River -
Reach A
0
0
5
0
5
C

Weber
River -
Reach B
0
0
17
1
17
C

Weber
River -
Reach C
0
0
11
0
11
C

Weber
River -
Reach D
0
0
20
0
20
C
                                            A = Risk to the sub-population at this location are possible
                                            B = Risks to the sub-population at this location cannot be determined
                                            C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                                            na = No data for this chemical in this location
AquaticRisk_SW.xls:  Both Graphs
1/13/2003

-------
This page intentionally left blank to facilitate double-sided printing.

-------
                                                 Appendix E-2
       Benthic Macroinvertebrate HQs for Direct Contact with Non-PAH Contaminants in Sediment

                       Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                                    COPPER
1E+04 -
^ 1E+03 -
O>
^ 1E+02 -
-^
'"§ 1E+01 -
6-
| 1E+00 -
M 1E-01 -
1E-02 -





(A




5"




*
o NDHQ • Detect HQ ^—HQ = 1










V









•





%




*




V
21st St 21st St BVP Ogden Q dgn Q dgn Weber Weber Weber Weber
Pond- Pond- Pond (ref) Reach A ReachB Reach C Reach A Reach B Reach C Reach D
West East (ref) (ref)
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
0
0
9
9
9
C
21st Street
Pond-
East
0
0
5
5
5
C
Buena
Ventura
Park Pond
0
0
4
4
4
C
Ogden
River -
Reach A
0
0
0
0
0
na
Ogden
River -
Reach B
0
0
4
4
4
C
Ogden
River -
Reach C
0
0
0
0
0
na
Weber
River -
Reach A
0
0
2
2
2
C
Weber
River -
Reach B
0
0
2
2
2
C
Weber
River -
Reach C
0
0
1
1
1
C
Weber
River -
Reach D
0
0
5
5
5
C
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Aquatic Risk_Sed non-PAH rev.xls: Graph
1/13/2003

-------
                                                  Appendix E-2
       Benthic Macroinvertebrate HQs for Direct Contact with Non-PAH Contaminants in Sediment

                       Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                                      IRON
1E+04 -
^ 1E+03 -
O>
^ 1E+02 -
-^
'"§ 1E+01 -
6-
| 1E+00 -
M 1E-01 -
1E-02 -





r





1%





;

o NDHQ • Detect HQ ^—HQ = 1











/











..






..





•





4

21st St 21st St BVP Ogden Q dgn Q dgn Weber Weber Weber Weber
Pond- Pond- Pond (ref) Reach A ReachB Reach C Reach A Reach B Reach C Reach D
West East (ref) (ref)
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
0
0
9
9
9
C
21st Street
Pond-
East
0
0
5
5
5
C
Buena
Ventura
Park Pond
0
0
4
4
4
C
Ogden
River -
Reach A
0
0
0
0
0
na
Ogden
River -
Reach B
0
0
4
4
4
C
Ogden
River -
Reach C
0
0
0
0
0
na
Weber
River -
Reach A
0
0
2
2
2
C
Weber
River -
Reach B
0
0
2
2
2
C
Weber
River -
Reach C
0
0
1
1
1
C
Weber
River -
Reach D
0
0
5
5
5
C
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Aquatic Risk_Sed non-PAH rev.xls: Graph
1/13/2003

-------
                                                 Appendix E-2
       Benthic Macroinvertebrate HQs for Direct Contact with Non-PAH Contaminants in Sediment

                       Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                                     LEAD
1E+04 -
^ 1E+03 -
O>
^ 1E+02 -
-^
'"§ 1E+01 -
6-
| 1E+00 -
M 1E-01 -
1E-02 -





A
A





H




.


o NDHQ • Detect HQ ^—HQ = 1











V


















&





• •*





*A
0
21st St 21st St BVP Ogden Q dgn Q dgn Weber Weber Weber Weber
Pond- Pond- Pond (ref) Reach A ReachB Reach C Reach A Reach B Reach C Reach D
West East (ref) (ref)
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
0
0
9
9
9
C
21st Street
Pond-
East
0
0
5
5
5
C
Buena
Ventura
Park Pond
3
0
1
4
4
A
Ogden
River -
Reach A
0
0
0
0
0
na
Ogden
River -
Reach B
0
0
5
5
5
C
Ogden
River -
Reach C
0
0
0
0
0
na
Weber
River -
Reach A
0
0
2
2
2
C
Weber
River -
Reach B
0
0
10
10
10
C
Weber
River -
Reach C
0
0
5
5
5
C
Weber
River -
Reach D
1
0
9
9
10
C
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Aquatic Risk_Sed non-PAH rev.xls: Graph
1/13/2003

-------
                                                  Appendix E-2
       Benthic Macroinvertebrate HQs for Direct Contact with Non-PAH Contaminants in Sediment

                       Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                                   MERCURY
^ 1E+03 -
O>
^ 1E+02 -
§
•g 1E+01 -
6-
| 1E+00 -
M 1E-01 -
1E-02 -





.
8 *






*.






* •

o NDHQ • Detect HQ ^—HQ = 1













* i
o












o







0






ODD






\\
finro

21st St 21st St BVP Ogden Q dgn Q dgn Weber Weber Weber Weber
Pond- Pond- Pond (ref) Reach A ReachB Reach C Reach A Reach B Reach C Reach D
West East (ref) (ref)
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
1
0
8
1
9
C
21st Street
Pond-
East
0
0
5
5
5
C
Buena
Ventura
Park Pond
2
0
2
4
4
A
Ogden
River -
Reach A
0
0
0
0
0
na
Ogden
River -
Reach B
0
0
5
2
5
C
Ogden
River -
Reach C
0
0
0
0
0
na
Weber
River -
Reach A
0
0
2
1
2
C
Weber
River -
Reach B
0
0
10
2
10
C
Weber
River -
Reach C
0
0
5
1
5
C
Weber
River -
Reach D
0
0
10
6
10
C
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Aquatic Risk_Sed non-PAH rev.xls: Graph
1/13/2003

-------
                                                 Appendix E-2
       Benthic Macroinvertebrate HQs for Direct Contact with Non-PAH Contaminants in Sediment

                       Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                                  SELENIUM
^ 1E+03 -
O>
^ 1E+02 -
S
•g 1E+01 -
6-
| 1E+00 -
M 1E-01 -
1E-02 -






Q&
O





•







O
8

o NDHQ • Detect HQ ^—HQ = 1












•
*













°0






GOO
6>





oo
o





00)
&

21st St 21st St BVP Ogden Q dgn Q dgn Weber Weber Weber Weber
Pond- Pond- Pond (ref) Reach A ReachB Reach C Reach A Reach B Reach C Reach D
West East (ref) (ref)
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
3
0
6
4
9
A
21st Street
Pond-
East
1
0
4
2
5
C
Buena
Ventura
Park Pond
0
0
4
1
4
C
Ogden
River -
Reach A
0
0
0
0
0
na
Ogden
River -
Reach B
1
0
4
1
5
C
Ogden
River -
Reach C
0
0
0
0
0
na
Weber
River -
Reach A
0
0
2
0
2
C
Weber
River -
Reach B
0
8
2
0
10
B
Weber
River -
Reach C
0
4
1
0
5
B
Weber
River -
Reach D
0
5
5
0
10
B
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Aquatic Risk_Sed non-PAH rev.xls: Graph
1/13/2003

-------
                                                 Appendix E-2
       Benthic Macroinvertebrate HQs for Direct Contact with Non-PAH Contaminants in Sediment

                       Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                                    SILVER
1E+04 -
^ 1E+03 -
O>
^ 1E+02 -
-^
'"§ 1E+01 -
6-
| 1E+00 -
M 1E-01 -
1E-02 -





0 0




00%




*
o NDHQ • Detect HQ ^—HQ = 1










*•









°0





0°**




*




*•
21st St 21st St BVP Ogden Q dgn Q dgn Weber Weber Weber Weber
Pond- Pond- Pond (ref) Reach A ReachB Reach C Reach A Reach B Reach C Reach D
West East (ref) (ref)
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
0
0
9
0
9
C
21st Street
Pond-
East
0
0
5
1
5
C
Buena
Ventura
Park Pond
0
0
4
1
4
C
Ogden
River -
Reach A
0
0
0
0
0
na
Ogden
River -
Reach B
0
0
5
0
5
C
Ogden
River -
Reach C
0
0
0
0
0
na
Weber
River -
Reach A
0
0
2
0
2
C
Weber
River -
Reach B
0
0
10
8
10
C
Weber
River -
Reach C
0
0
5
0
5
C
Weber
River -
Reach D
0
0
10
0
10
C
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Aquatic Risk_Sed non-PAH rev.xls: Graph
1/13/2003

-------
                                                  Appendix E-2
       Benthic Macroinvertebrate HQs for Direct Contact with Non-PAH Contaminants in Sediment

                       Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                                      ZINC
1E+04 -
^ 1E+03 -
O>
^ 1E+02 -
-^
'"§ 1E+01 -
6-
| 1E+00 -
M 1E-01 -
1E-02 -





J%





4





*.

o NDHQ • Detect HQ ^—HQ = 1











%*»











•






•











*

21st St 21st St BVP Ogden Q dgn Q dgn Weber Weber Weber Weber
Pond- Pond- Pond (ref) Reach A ReachB Reach C Reach A Reach B Reach C Reach D
West East (ref) (ref)
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
0
0
9
9
9
C
21st Street
Pond-
East
0
0
5
5
5
C
Buena
Ventura
Park Pond
1
0
3
4
4
A
Ogden
River -
Reach A
0
0
0
0
0
na
Ogden
River -
Reach B
0
0
4
4
4
C
Ogden
River -
Reach C
0
0
0
0
0
na
Weber
River -
Reach A
0
0
2
2
2
C
Weber
River -
Reach B
0
0
2
2
2
C
Weber
River -
Reach C
0
0
1
1
1
C
Weber
River -
Reach D
0
0
5
5
5
C
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Aquatic Risk_Sed non-PAH rev.xls: Graph
1/13/2003

-------
                                                  Appendix E-2
       Benthic Macroinvertebrate HQs for Direct Contact with Non-PAH Contaminants in Sediment

                       Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                                    4,4'-DDE
1E+04 -
^ 1E+03 -
O>
^ 1E+02 -
-^
'"§ 1E+01 -
6-
| 1E+00 -
M 1E-01 -
1E-02 -




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21st St 21st St BVP Ogden Q dgn Q dgn Weber Weber Weber Weber
Pond- Pond- Pond (ref) Reach A ReachB Reach C Reach A Reach B Reach C Reach D
West East (ref) (ref)
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
5
0
2
5
7
A
21st Street
Pond-
East
0
0
2
0
2
C
Buena
Ventura
Park Pond
0
0
3
0
3
C
Ogden
River -
Reach A
0
0
6
0
6
C
Ogden
River -
Reach B
0
2
4
0
6
B
Ogden
River -
Reach C
0
0
3
0
3
C
Weber
River -
Reach A
0
1
1
0
2
B
Weber
River -
Reach B
0
8
2
0
10
B
Weber
River -
Reach C
1
4
0
1
5
B
Weber
River -
Reach D
0
6
9
0
15
B
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Aquatic Risk_Sed non-PAH rev.xls: Graph
1/13/2003

-------
                                                  Appendix E-2
       Benthic Macroinvertebrate HQs for Direct Contact with Non-PAH Contaminants in Sediment

                       Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                                    4,4'-DDT
1E+04 -
^ 1E+03 -
O>
^ 1E+02 -
-^
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6-
| 1E+00 -
M 1E-01 -
1E-02 -





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 1:
NDHQs> 1:
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
0
0
7
0
7
C
21st Street
Pond-
East
0
0
2
0
2
C
Buena
Ventura
Park Pond
0
0
3
0
3
C
Ogden
River -
Reach A
0
0
6
0
6
C
Ogden
River -
Reach B
0
1
5
1
6
C
Ogden
River -
Reach C
0
0
3
1
3
C
Weber
River -
Reach A
0
0
2
0
2
C
Weber
River -
Reach B
0
8
2
0
10
B
Weber
River -
Reach C
0
4
1
0
5
B
Weber
River -
Reach D
0
5
10
0
15
B
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Aquatic Risk_Sed non-PAH rev.xls: Graph
1/13/2003

-------
                                                 Appendix E-2
       Benthic Macroinvertebrate HQs for Direct Contact with Non-PAH Contaminants in Sediment

                       Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                                  DIELDRIN
1E+04 -
^ 1E+03 -
O>
^ 1E+02 -
-^
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| 1E+00 -
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21st St 21st St BVP Ogden Q dgn Q dgn Weber Weber Weber Weber
Pond- Pond- Pond (ref) Reach A ReachB Reach C Reach A Reach B Reach C Reach D
West East (ref) (ref)
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
0
5
2
0
7
B
21st Street
Pond-
East
0
2
0
0
2
B
Buena
Ventura
Park Pond
0
2
1
0
3
B
Ogden
River -
Reach A
0
1
5
0
6
C
Ogden
River -
Reach B
1
2
3
1
6
B
Ogden
River -
Reach C
0
0
3
0
3
C
Weber
River -
Reach A
0
2
0
0
2
B
Weber
River -
Reach B
0
9
1
0
10
B
Weber
River -
Reach C
0
5
0
0
5
B
Weber
River -
Reach D
0
10
5
0
15
B
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Aquatic Risk_Sed non-PAH rev.xls: Graph
1/13/2003

-------
                                                 Appendix E-2
       Benthic Macroinvertebrate HQs for Direct Contact with Non-PAH Contaminants in Sediment

                       Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                               AROCLOR-1254
1E+04 -
^ 1E+03 -
O>
^ 1E+02 -
-^
'"§ 1E+01 -
6-
| 1E+00 -
M 1E-01 -
1E-02 -





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21st St 21st St BVP Ogden Q dgn Q dgn Weber Weber Weber Weber
Pond- Pond- Pond (ref) Reach A ReachB Reach C Reach A Reach B Reach C Reach D
West East (ref) (ref)
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
0
0
11
0
11
C
21st Street
Pond-
East
0
1
4
0
5
C
Buena
Ventura
Park Pond
0
0
3
0
3
C
Ogden
River -
Reach A
0
0
9
1
9
C
Ogden
River -
Reach B
1
5
9
1
15
B
Ogden
River -
Reach C
0
0
4
0
4
C
Weber
River -
Reach A
0
0
2
0
2
C
Weber
River -
Reach B
0
0
10
0
10
C
Weber
River -
Reach C
0
0
5
0
5
C
Weber
River -
Reach D
0
0
15
0
15
C
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Aquatic Risk_Sed non-PAH rev.xls: Graph
1/13/2003

-------
                                                 Appendix E-2
       Benthic Macroinvertebrate HQs for Direct Contact with Non-PAH Contaminants in Sediment

                       Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                               AROCLOR-1260
1E+04 -
^ 1E+03 -
O>
^ 1E+02 -
-^
'"§ 1E+01 -
6-
| 1E+00 -
M 1E-01 -
1E-02 -





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21st St 21st St BVP Ogden Q dgn Q dgn Weber Weber Weber Weber
Pond- Pond- Pond (ref) Reach A ReachB Reach C Reach A Reach B Reach C Reach D
West East (ref) (ref)
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
0
0
11
2
11
C
21st Street
Pond-
East
3
1
1
3
5
A
Buena
Ventura
Park Pond
0
0
3
0
3
C
Ogden
River -
Reach A
0
0
10
0
10
C
Ogden
River -
Reach B
8
0
7
11
15
A
Ogden
River -
Reach C
2
0
2
3
4
A
Weber
River -
Reach A
0
0
2
0
2
C
Weber
River -
Reach B
0
0
10
0
10
C
Weber
River -
Reach C
0
0
5
0
5
C
Weber
River -
Reach D
0
0
15
0
15
C
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Aquatic Risk_Sed non-PAH rev.xls: Graph
1/13/2003

-------
                                                  Appendix E-2
       Benthic Macroinvertebrate HQs for Direct Contact with Non-PAH Contaminants in Sediment

                       Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                                  BIPHENYL
1E+04 -
^ 1E+03 -
O>
^ 1E+02 -
-^
'"§ 1E+01 -
6-
| 1E+00 -
M 1E-01 -
1E-02 -




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21st St 21st St BVP Ogden Q dgn Q dgn Weber Weber Weber Weber
Pond- Pond- Pond (ref) Reach A ReachB Reach C Reach A Reach B Reach C Reach D
West East (ref) (ref)
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
0
1
6
0
7
C
21st Street
Pond-
East
1
1
1
1
3
A
Buena
Ventura
Park Pond
0
2
0
0
2
B
Ogden
River -
Reach A
0
2
0
0
2
B
Ogden
River -
Reach B
0
3
0
0
3
B
Ogden
River -
Reach C
0
2
1
0
3
B
Weber
River -
Reach A
0
0
0
0
0
na
Weber
River -
Reach B
0
0
0
0
0
na
Weber
River -
Reach C
0
0
0
0
0
na
Weber
River -
Reach D
0
0
0
0
0
na
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Aquatic Risk_Sed non-PAH rev.xls: Graph
1/13/2003

-------
                                                 Appendix E-2
       Benthic Macroinvertebrate HQs for Direct Contact with Non-PAH Contaminants in Sediment

                       Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                    BIS(2-ETHYLHEXYL)PHTHALATE

^ 1E+03 -
O>
^ 1E+02 -
e
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21st St 21st St BVP Ogden Q dgn Q dgn Weber Weber Weber Weber
Pond- Pond- Pond (ref) Reach A ReachB Reach C Reach A Reach B Reach C Reach D
West East (ref) (ref)
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
3
4
11
9
24
B
21st Street
Pond-
East
2
4
5
5
11
B
Buena
Ventura
Park Pond
1
1
4
4
6
B
Ogden
River -
Reach A
0
2
0
0
2
B
Ogden
River -
Reach B
1
4
4
5
9
B
Ogden
River -
Reach C
2
1
0
2
3
A
Weber
River -
Reach A
1
1
0
1
2
A
Weber
River -
Reach B
0
2
8
1
10
C
Weber
River -
Reach C
1
0
4
5
5
C
Weber
River -
Reach D
3
2
5
8
10
A
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Aquatic Risk_Sed non-PAH rev.xls: Graph
1/13/2003

-------
                                                Appendix E-2
       Benthic Macroinvertebrate HQs for Direct Contact with Non-PAH Contaminants in Sediment

                       Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                              DIBENZOFURAN
1E+04 -
^ 1E+03 -
O>
^ 1E+02 -
-^
'"§ 1E+01 -
6-
"S 1E+00 -
§
M 1E-01 -
1E-02 -




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21st St 21st St BVP Ogden Q dgn Q dgn Weber Weber Weber Weber
Pond- Pond- Pond (ref) Reach A ReachB Reach C Reach A Reach B Reach C Reach D
West East (ref) (ref)
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
0
3
17
1
20
C
21st Street
Pond-
East
1
1
6
3
8
B
Buena
Ventura
Park Pond
0
2
4
0
6
B
Ogden
River -
Reach A
0
2
0
0
2
B
Ogden
River -
Reach B
0
3
5
0
8
B
Ogden
River -
Reach C
0
2
1
0
3
B
Weber
River -
Reach A
0
2
0
0
2
B
Weber
River -
Reach B
0
2
8
0
10
C
Weber
River -
Reach C
0
1
4
0
5
C
Weber
River -
Reach D
0
5
5
0
10
B
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Aquatic Risk_Sed non-PAH rev.xls: Graph
1/13/2003

-------
                                                  Appendix E-2
       Benthic Macroinvertebrate HQs for Direct Contact with Non-PAH Contaminants in Sediment

                       Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                                    PHENOL
^ 1E+03 -
O>
^ 1E+02 -
-^
§
'"§ 1E+01 -
6-
| 1E+00 -
M 1E-01 -
1E-02 -




V




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O




0
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0°




o




§
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21st St 21st St BVP Ogden Q dgn Q dgn Weber Weber Weber Weber
Pond- Pond- Pond (ref) Reach A ReachB Reach C Reach A Reach B Reach C Reach D
West East (ref) (ref)
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
0
20
4
0
24
B
21st Street
Pond-
East
0
10
1
0
11
B
Buena
Ventura
Park Pond
0
5
1
0
6
B
Ogden
River -
Reach A
0
2
0
0
2
B
Ogden
River -
Reach B
0
1
1
0
8
B
Ogden
River -
Reach C
0
3
0
0
3
B
Weber
River -
Reach A
0
2
0
0
2
B
Weber
River -
Reach B
0
2
8
1
10
C
Weber
River -
Reach C
0
1
4
0
5
C
Weber
River -
Reach D
0
5
5
1
10
B
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Aquatic Risk_Sed non-PAH rev.xls: Graph
1/13/2003

-------
                                                 Appendix E-2
       Benthic Macroinvertebrate HQs for Direct Contact with Non-PAH Contaminants in Sediment

                       Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                                  ACETONE
1E+04 -
^ 1E+03 -
O>
^ 1E+02 -
-^
'"§ 1E+01 -
6-
| 1E+00 -
M 1E-01 -

1E-02 -






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21st St 21st St BVP Ogden Q dgn Q dgn Weber Weber Weber Weber
Pond- Pond- Pond (ref) Reach A ReachB Reach C Reach A Reach B Reach C Reach D
West East (ref) (ref)
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
0
0
14
5
14
C
21st Street
Pond-
East
0
0
5
2
5
C
Buena
Ventura
Park Pond
0
0
4
2
4
C
Ogden
River -
Reach A
0
0
0
0
0
na
Ogden
River -
Reach B
0
0
4
0
4
C
Ogden
River -
Reach C
0
0
0
0
0
na
Weber
River -
Reach A
0
0
5
5
5
C
Weber
River -
Reach B
0
0
14
5
14
C
Weber
River -
Reach C
0
0
6
4
6
C
Weber
River -
Reach D
0
0
16
15
16
C
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Aquatic Risk_Sed non-PAH rev.xls: Graph
1/13/2003

-------
                                                 Appendix E-2
       Benthic Macroinvertebrate HQs for Direct Contact with Non-PAH Contaminants in Sediment

                       Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                                  ACROLEIN
^ 1E+03 -
O>
^ 1E+02 -
-^
§
•g 1E+01 -
6-
| 1E+00 -
M 1E-01 -
1E-02 -


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21st St 21st St BVP Ogden Q dgn Q dgn Weber Weber Weber Weber
Pond- Pond- Pond (ref) Reach A ReachB Reach C Reach A Reach B Reach C Reach D
West East (ref) (ref)
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
0
11
0
0
11
B
21st Street
Pond-
East
0
5
0
0
5
B
Buena
Ventura
Park Pond
0
3
0
0
3
B
Ogden
River -
Reach A
0
0
0
0
0
na
Ogden
River -
Reach B
0
3
0
0
3
B
Ogden
River -
Reach C
0
0
0
0
0
na
Weber
River -
Reach A
0
3
0
0
3
B
Weber
River -
Reach B
0
12
0
0
12
B
Weber
River -
Reach C
1
4
0
1
5
B
Weber
River -
Reach D
0
11
0
0
11
B
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Aquatic Risk_Sed non-PAH rev.xls: Graph
1/13/2003

-------
                                                 Appendix E-2
       Benthic Macroinvertebrate HQs for Direct Contact with Non-PAH Contaminants in Sediment

                       Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                             ACRYLONITRILE
1E+04 -
^ 1E+03 -
O>
^ 1E+02 -
-^
'"§ 1E+01 -
6-
| 1E+00 -
M 1E-01 -
1E-02 -





^




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GOB

21st St 21st St BVP Ogden Q dgn Q dgn Weber Weber Weber Weber
Pond- Pond- Pond (ref) Reach A ReachB Reach C Reach A Reach B Reach C Reach D
West East (ref) (ref)
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
0
6
5
0
11
B
21st Street
Pond-
East
0
1
4
0
5
C
Buena
Ventura
Park Pond
0
1
2
0
3
B
Ogden
River -
Reach A
0
0
0
0
0
na
Ogden
River -
Reach B
0
2
1
0
3
B
Ogden
River -
Reach C
0
0
0
0
0
na
Weber
River -
Reach A
0
0
3
0
3
C
Weber
River -
Reach B
0
9
3
1
12
B
Weber
River -
Reach C
0
4
1
0
5
B
Weber
River -
Reach D
0
5
6
0
11
B
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Aquatic Risk_Sed non-PAH rev.xls: Graph
1/13/2003

-------
                                                 Appendix E-2
       Benthic Macroinvertebrate HQs for Direct Contact with Non-PAH Contaminants in Sediment

                       Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                                   BENZENE
1E+04 -
^ 1E+03 -
O>
^ 1E+02 -
-^
'"§ 1E+01 -
6-
| 1E+00 -
M 1E-01 -
1E-02 -





A
o




•
OP





Q>°
o NDHQ • Detect HQ ^—HQ = 1












£











oo






cP"





OD





*8
21st St 21st St BVP Ogden Q dgn Q dgn Weber Weber Weber Weber
Pond- Pond- Pond (ref) Reach A ReachB Reach C Reach A Reach B Reach C Reach D
West East (ref) (ref)
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
0
0
14
1
14
C
21st Street
Pond-
East
0
0
5
2
5
C
Buena
Ventura
Park Pond
0
0
4
0
4
C
Ogden
River -
Reach A
0
0
0
0
0
na
Ogden
River -
Reach B
0
0
4
0
4
C
Ogden
River -
Reach C
0
0
0
0
0
na
Weber
River -
Reach A
0
0
5
0
5
C
Weber
River -
Reach B
0
0
14
0
14
C
Weber
River -
Reach C
0
0
6
0
6
C
Weber
River -
Reach D
0
0
16
0
16
C
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Aquatic Risk_Sed non-PAH rev.xls: Graph
1/13/2003

-------
                                                 Appendix E-2
       Benthic Macroinvertebrate HQs for Direct Contact with Non-PAH Contaminants in Sediment

                       Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                BROMOMETHANE (METHYL BROMIDE)
^ 1E+03 -
O>
^ 1E+02 -
§
•g 1E+01 -
6-
| 1E+00 -
M 1E-01 -
1E-02 -






o





O
9o





o
00
o
o NDHQ • Detect HQ ^—HQ = 1












08
0











0°






o





8°
0





V
21st St 21st St BVP Ogden Q dgn Q dgn Weber Weber Weber Weber
Pond- Pond- Pond (ref) Reach A ReachB Reach C Reach A Reach B Reach C Reach D
West East (ref) (ref)
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
0
0
14
0
14
C
21st Street
Pond-
East
0
0
5
0
5
C
Buena
Ventura
Park Pond
0
0
4
0
4
C
Ogden
River -
Reach A
0
0
0
0
0
na
Ogden
River -
Reach B
0
0
4
0
4
C
Ogden
River -
Reach C
0
0
0
0
0
na
Weber
River -
Reach A
0
0
5
3
5
C
Weber
River -
Reach B
0
0
14
0
14
C
Weber
River -
Reach C
0
0
6
0
6
C
Weber
River -
Reach D
0
0
16
1
16
C
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Aquatic Risk_Sed non-PAH rev.xls: Graph
1/13/2003

-------
                                                Appendix E-2
       Benthic Macroinvertebrate HQs for Direct Contact with Non-PAH Contaminants in Sediment

                      Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                            CARBON DISULFIDE
1E+04 -
^ 1E+03 -
O>
^ 1E+02 -
-^
'"§ 1E+01 -
6-
| 1E+00 -
M 1E-01 -
1E-02 -




#
o o
o




0





0?
o

o NDHQ • Detect HQ ^—HQ = 1










^
0










^
°0





.
o





o




A
^6 ••
°o •

21st St 21st St BVP Ogden Q dgn Q dgn Weber Weber Weber Weber
Pond- Pond- Pond (ref) Reach A ReachB Reach C Reach A Reach B Reach C Reach D
West East (ref) (ref)
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
0
11
3
0
14
B
21st Street
Pond-
East
0
5
0
0
5
B
Buena
Ventura
Park Pond
0
3
1
0
4
B
Ogden
River -
Reach A
0
0
0
0
0
na
Ogden
River -
Reach B
0
3
1
0
4
B
Ogden
River -
Reach C
0
0
0
0
0
na
Weber
River -
Reach A
3
0
2
3
5
A
Weber
River -
Reach B
1
0
13
1
14
C
Weber
River -
Reach C
1
0
5
1
6
C
Weber
River -
Reach D
3
0
13
7
16
C
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Aquatic Risk_Sed non-PAH rev.xls: Graph
1/13/2003

-------
                                                 Appendix E-2
       Benthic Macroinvertebrate HQs for Direct Contact with Non-PAH Contaminants in Sediment

                       Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                              ETHYLBENZENE
1E+04 -
^ 1E+03 -
O>
^ 1E+02 -
-^
'"§ 1E+01 -
6-
| 1E+00 -
M 1E-01 -
1E-02 -




•
OD




iSO •




o
o NDHQ • Detect HQ ^—HQ = 1










0*
o









CO
0°





?•




DDO
O




r
21st St 21st St BVP Ogden Q dgn Q dgn Weber Weber Weber Weber
Pond- Pond- Pond (ref) Reach A ReachB Reach C Reach A Reach B Reach C Reach D
West East (ref) (ref)
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
1
0
13
1
14
C
21st Street
Pond-
East
0
0
5
2
5
C
Buena
Ventura
Park Pond
0
0
4
0
4
C
Ogden
River -
Reach A
0
0
0
0
0
na
Ogden
River -
Reach B
0
0
4
0
4
C
Ogden
River -
Reach C
0
0
0
0
0
na
Weber
River -
Reach A
0
0
5
0
5
C
Weber
River -
Reach B
0
0
14
1
14
C
Weber
River -
Reach C
0
0
6
0
6
C
Weber
River -
Reach D
0
0
16
0
16
C
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Aquatic Risk_Sed non-PAH rev.xls: Graph
1/13/2003

-------
                                                  Appendix E-2
       Benthic Macroinvertebrate HQs for Direct Contact with Non-PAH Contaminants in Sediment

                       Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                                   TOLUENE
^ 1E+03 -
O>
^ 1E+02 -
'"§ 1E+01 -
6-
| 1E+00 -
M 1E-01 -
1E-02 -





oo









80
o
o NDHQ • Detect HQ ^—HQ = 1










o







,•
•






M •




OO *
O



f
0 .J
21st St 21st St BVP Ogden Q dgn Q dgn Weber Weber Weber Weber
Pond- Pond- Pond (ref) Reach A ReachB Reach C Reach A Reach B Reach C Reach D
West East (ref) (ref)
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
0
0
14
1
14
C
21st Street
Pond-
East
0
0
5
1
5
C
Buena
Ventura
Park Pond
0
0
4
0
4
C
Ogden
River -
Reach A
0
0
0
0
0
na
Ogden
River -
Reach B
0
0
4
0
4
C
Ogden
River -
Reach C
0
0
0
0
0
na
Weber
River -
Reach A
5
0
0
5
5
A
Weber
River -
Reach B
0
0
14
5
14
C
Weber
River -
Reach C
0
0
6
3
6
C
Weber
River -
Reach D
5
0
11
14
16
A
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Aquatic Risk_Sed non-PAH rev.xls: Graph
1/13/2003

-------
                                                 Appendix E-2
       Benthic Macroinvertebrate HQs for Direct Contact with Non-PAH Contaminants in Sediment

                       Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                             XYLENES (TOTAL)
1E+04 -
^ 1E+03 -
O>
^ 1E+02 -
-^
'"§ 1E+01 -
6-
| 1E+00 -
M 1E-01 -
1E-02 -





%




•
e





o
0 0

o NDHQ • Detect HQ ^—HQ = 1











0°
o










OB
.





00 •
-




O
ID




am
mo
21st St 21st St BVP Ogden Q dgn Q dgn Weber Weber Weber Weber
Pond- Pond- Pond (ref) Reach A ReachB Reach C Reach A Reach B Reach C Reach D
West East (ref) (ref)
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
0
0
11
0
11
C
21st Street
Pond-
East
2
0
3
2
5
A
Buena
Ventura
Park Pond
0
0
3
0
3
C
Ogden
River -
Reach A
0
0
0
0
0
na
Ogden
River -
Reach B
0
0
3
0
3
C
Ogden
River -
Reach C
0
0
0
0
0
na
Weber
River -
Reach A
0
0
3
1
3
C
Weber
River -
Reach B
0
0
12
1
12
C
Weber
River -
Reach C
0
0
5
0
5
C
Weber
River -
Reach D
0
0
11
1
11
C
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Aquatic Risk_Sed non-PAH rev.xls: Graph
1/13/2003

-------
                                                 Appendix E-2
       Benthic Macroinvertebrate HQs for Direct Contact with Non-PAH Contaminants in Sediment

                       Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                                  O-XYLENE
1E+04 -
^ 1E+03 -
O>
^ 1E+02 -
-^
'"§ 1E+01 -
6-
| 1E+00 -
M 1E-01 -
1E-02 -






OD











O
o NDHQ • Detect HQ ^—HQ = 1












o











8






o
o





o





r
21st St 21st St BVP Ogden Q dgn Q dgn Weber Weber Weber Weber
Pond- Pond- Pond (ref) Reach A ReachB Reach C Reach A Reach B Reach C Reach D
West East (ref) (ref)
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
1
0
2
1
3
A
21st Street
Pond-
East
0
0
0
0
0
na
Buena
Ventura
Park Pond
0
0
1
0
1
C
Ogden
River -
Reach A
0
0
0
0
0
na
Ogden
River -
Reach B
0
0
1
0
1
C
Ogden
River -
Reach C
0
0
0
0
0
na
Weber
River -
Reach A
0
0
2
0
2
C
Weber
River -
Reach B
0
0
2
0
2
C
Weber
River -
Reach C
0
0
1
0
1
C
Weber
River -
Reach D
0
0
5
0
5
C
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Aquatic Risk_Sed non-PAH rev.xls: Graph
1/13/2003

-------
                                                 Appendix E-2
       Benthic Macroinvertebrate HQs for Direct Contact with Non-PAH Contaminants in Sediment

                       Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                                XYLENES-P,M
1E+04 -
^ 1E+03 -
O>
^ 1E+02 -
-^
'"§ 1E+01 -
6-
| 1E+00 -
M 1E-01 -
1E-02 -




V
00









O
o NDHQ • Detect HQ ^—HQ = 1










o









°0





0
o




o




cP
21st St 21st St BVP Ogden Q dgn Q dgn Weber Weber Weber Weber
Pond- Pond- Pond (ref) Reach A ReachB Reach C Reach A Reach B Reach C Reach D
West East (ref) (ref)
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st
Street
Pond-
West
1
0
2
1
3
A
21st Street
Pond-
East
0
0
0
0
0
na
Buena
Ventura
Park Pond
0
0
1
0
1
C
Ogden
River -
Reach A
0
0
0
0
0
na
Ogden
River -
Reach B
0
0
1
0
1
C
Ogden
River -
Reach C
0
0
0
0
0
na
Weber
River -
Reach A
0
0
2
0
2
C
Weber
River -
Reach B
0
0
2
0
2
C
Weber
River -
Reach C
0
0
1
0
1
C
Weber
River -
Reach D
0
0
5
0
5
C
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Aquatic Risk_Sed non-PAH rev.xls: Graph
1/13/2003

-------
This page intentionally left blank to facilitate double-sided printing.

-------
                                                                      Appendix E-3
                                       Benthic Macroinvertebrate HQs for Direct Contact with PAHs in Sediment
                                                              (Based on Non-SIM Analysis)

                                             Baseline Ecological Risk Assessment for the Ogden Railyard Site
                                                              1-METHYLNAPHTHALENE

                                                        Based on the Sediment Effect Concentration (SEC)

o ND HQ • Detect HQ 	 HQ = 1

1E+05 -
-S- 1E+04 -
§ 1E+03 -
S 1E+02 -
.S 1E+01 -
1 1E+00 -
O*
•o 1E-01 -
g 1E-02 -
S 1E-03 -
1E-04 -









«s>






f




So



































fe































































21st St ' 21st St ' i i i i
Pond- Pond- BVP Ogden Ogden Ogden Weber Weber Weber Weber
West East Pond Reach A Reach B Reach C Reach A Reach B Reach C Reach D
(ref) (ref) (ref)
Statistic
N Detect HQs > 1:
NNDHQs>l:
NAllHQs



21st St









0



BVP













Ogden









 1:
NNDHQs>l:
NAllHQs
-------
                                                                      Appendix E-3
                                       Benthic Macroinvertebrate HQs for Direct Contact with PAHs in Sediment
                                                              (Based on Non-SIM Analysis)

                                             Baseline Ecological Risk Assessment for the Ogden Railyard Site
                                                              2-METHYLNAPHTHALENE

                                                        Based on the Sediment Effect Concentration (SEC)
1E+06 -
1E+05 -
-S- 1E+04 -
§ 1E+03 -
S 1E+02 -
| 1E+01 -
1 1E+00 -
•o 1E-01 -
g 1E-02 -
S 1E-03 -
1E-04 -
1E-05 -




O




.
•
B
O
§8 •







O
o
00 •




o ND HQ • Detect HQ 	 HQ = 1




o
o







t°







CO
















ma>







CO







OB




21st St ' 21st St ' i i i i
Pond- Pond- BVP Ogden Ogden Ogden Weber Weber Weber Weber
West East Pond Reach A Reach B Reach C Reach A Reach B Reach C Reach D
(ref) (ref) (ref)
Statistic
N Detect HQs > 1:
NNDHQs>l:
NAllHQs 1:
NNDHQs>l:
NAllHQs
-------
                                                                       Appendix E-3
                                       Benthic Macroinvertebrate HQs for Direct Contact with PAHs in Sediment
                                                               (Based on Non-SIM Analysis)

                                             Baseline Ecological Risk Assessment for the Ogden Railyard Site
                                                                    ACENAPHTHENE

                                                        Based on the Sediment Effect Concentration (SEC)

o ND HQ • Detect HQ 	 HQ = 1

1E+05 -
-S- 1E+04 -
§ 1E+03 -
S 1E+02 -
.8 1E+01 -
1 1E+00 -
O*
•o 1E-01 -
g 1E-02 -
S 1E-03 -
1E-04 -



O
• .







.

•
'"I.









o
O
00 •









o






















«,










am










ODD







21st St ' 21st St ' i i i i
Pond- Pond- BVP Ogden Ogden Ogden Weber Weber Weber Weber
West East Pond Reach A Reach B Reach C Reach A Reach B Reach C Reach D
(ref) (ref) (ref)
Statistic
N Detect HQs > 1:
NNDHQs>l:
NAllHQs 1:
NNDHQs>l:
NAllHQs
-------
                                                                       Appendix E-3
                                       Benthic Macroinvertebrate HQs for Direct Contact with PAHs in Sediment
                                                               (Based on Non-SIM Analysis)

                                             Baseline Ecological Risk Assessment for the Ogden Railyard Site
                                                                  ACENAPHTHYLENE

                                                        Based on the Sediment Effect Concentration (SEC)

o NDHQ • Detect HQ ^— HQ = 1

1E+05 -
>& 1E+04 -
^ 1E+03 -
£ 1E+02 -

.2 1E+01 -
i 1E+00 -
O'
-o 1E-01 -
3 1E-02 -
S IE-OS -
1E-04 -



o
life

^*









*
%0

•









o
O 9
o
•









o














(DOB









































































21st St ' 21st St ' i i i i i
Pond - Pond - BVP Ogden Ogden Ogden Weber Weber Weber Weber
West East Pond Reach A Reach B Reach C Reach A Reach B Reach C Reach D
(ref) (ref) (ref)
Statistic
N Detect HQs > 1:
NNDHQs>l:
NAllHQs


Weber









(DO


Weber









ODO


Weber
Pond Reach A Reach B Reach C Reach A Reach B Reach C Reach D
(ref) (refl (ref)
Statistic
N Detect HQs > 1:
NNDHQs>l:
NAllHQs
-------
                                                                       Appendix E-3
                                       Benthic Macroinvertebrate HQs for Direct Contact with PAHs in Sediment
                                                               (Based on Non-SIM Analysis)

                                             Baseline Ecological Risk Assessment for the Ogden Railyard Site
                                                                      ANTHRACENE

                                                         Based on the Sediment Effect Concentration (SEC)
1E+06 -
1E+05 -
-S- 1E+04 -
§ 1E+03 -
S 1E+02 -
| 1E+01 -
1 1E+00 -
•o 1E-01 -
g 1E-02 -
S 1E-03 -
1E-04 -
1E-05 -




0





•

- V







o
0 0
CO




o ND HQ • Detect HQ 	 HQ = 1




0
fto







TJO
So V
*






%°
























OO







ODD




21st St ' 21st St ' i i i i
Pond- Pond- BVP Ogden Ogden Ogden Weber Weber Weber Weber
West East Pond Reach A Reach B Reach C Reach A Reach B Reach C Reach D
(refl (ref) (ref)
Statistic
N Detect HQs > 1:
NNDHQs>l:
NAllHQs 1:
NNDHQs>l:
NAllHQs
-------
                                                                       Appendix E-3
                                       Benthic Macroinvertebrate HQs for Direct Contact with PAHs in Sediment
                                                              (Based on Non-SIM Analysis)

                                             Baseline Ecological Risk Assessment for the Ogden Railyard Site
                                                               BENZO[A]ANTHRACENE

                                                        Based on the Sediment Effect Concentration (SEC)
1E+06 -
1E+05 -
-S- 1E+04 -
§ 1E+03 -
S 1E+02 -
| 1E+01 -
1 1E+00 -
•o 1E-01 -
g 1E-02 -
S 1E-03 -
1E-04 -
1E-05 -




O

Cft




o NDHQ • Detect HQ ^— HQ = 1




o







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0 Ik








*
































*



21st St ' 21st St ' i i i i
Pond- Pond- BVP Ogden Ogden Ogden Weber Weber Weber Weber
West East Pond Reach A Reach B Reach C Reach A Reach B Reach C Reach D
(ref) (ref) (ref)
Statistic
N Detect HQs > 1:
NNDHQs>l:
NAllHQs B


Weber
Pond Reach A Reach B Reach C Reach A Reach B Reach C Reach D
(ref) (ref) (ref)
Statistic
N Detect HQs > 1:
NNDHQs>l:
NAllHQs
-------
                                                                      Appendix E-3
                                       Benthic Macroinvertebrate HQs for Direct Contact with PAHs in Sediment
                                                              (Based on Non-SIM Analysis)

                                             Baseline Ecological Risk Assessment for the Ogden Railyard Site
                                                                   BENZO[A]PYRENE

                                                        Based on the Sediment Effect Concentration (SEC)
1E+06 -
1E+05 -
-S- 1E+04 -
§ 1E+03 -
S 1E+02 -
| 1E+01 -
1 1E+00 -
•o 1E-01 -
g 1E-02 -
S 1E-03 -
1E-04 -
1E-05 -




O
at • .






*.
•







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CO




o ND HQ • Detect HQ 	 HQ = 1




o
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21st St ' 21st St ' i i i i
Pond- Pond- BVP Ogden Ogden Ogden Weber Weber Weber Weber
West East Pond Reach A Reach B Reach C Reach A Reach B Reach C Reach D
(ref) (ref) (ref)
Statistic
N Detect HQs > 1:
NNDHQs>l:
NAllHQs 1:
NNDHQs>l:
NAllHQs
-------
                                                                      Appendix E-3
                                       Benthic Macroinvertebrate HQs for Direct Contact with PAHs in Sediment
                                                              (Based on Non-SIM Analysis)

                                             Baseline Ecological Risk Assessment for the Ogden Railyard Site
                                                              BENZO[B]FLUORANTHENE

                                                        Based on the Sediment Effect Concentration (SEC)
1E+06 -
1E+05 -
g 1E+04 -
g 1E+03 -
S 1E+02 -
| 1E+01 -
1 1E+00 -
•o 1E-01 -
g 1E-02 -
S 1E-03 -
1E-04 -
1E-05 -




O
«•
Jb





.
•
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r







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00
09




o ND HQ • Detect HQ 	 HQ = 1




o
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21st St ' 21st St ' i i i i
Pond- Pond- BVP Ogden Ogden Ogden Weber Weber Weber Weber
West East Pond Reach A Reach B Reach C Reach A Reach B Reach C Reach D
(ref) (ref) (ref)
Statistic
N Detect HQs > 1:
NNDHQs>l:
NAllHQs 1:
NNDHQs>l:
NAllHQs
-------
                                                                      Appendix E-3
                                       Benthic Macroinvertebrate HQs for Direct Contact with PAHs in Sediment
                                                              (Based on Non-SIM Analysis)

                                             Baseline Ecological Risk Assessment for the Ogden Railyard Site
                                                               BENZO[G,H,I]PERYLENE

                                                        Based on the Sediment Effect Concentration (SEC)
1E+06 -
1E+05 -
-S- 1E+04 -
§ 1E+03 -
S 1E+02 -
.S 1E+01 -
1 1E+00 -
•o 1E-01 -
g 1E-02 -
S 1E-03 -
1E-04 -
1E-05 -





O
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o ND HQ • Detect HQ 	 HQ = 1





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21st St ' 21st St ' i i i i
Pond- Pond- BVP Ogden Ogden Ogden Weber Weber Weber Weber
West East Pond Reach A Reach B Reach C Reach A Reach B Reach C Reach D
(ref) (ref) (ref)
Statistic
N Detect HQs > 1:
NNDHQs>l:
NAllHQs 1:
NNDHQs>l:
NAllHQs
-------
                                                                      Appendix E-3
                                       Benthic Macroinvertebrate HQs for Direct Contact with PAHs in Sediment
                                                              (Based on Non-SIM Analysis)

                                             Baseline Ecological Risk Assessment for the Ogden Railyard Site
                                                             BENZO[K]FLUORANTHENE

                                                        Based on the Sediment Effect Concentration (SEC)
1E+06 -
1E+05 -
-S- 1E+04 -
§ 1E+03 -
S 1E+02 -
| 1E+01 -
1 1E+00 -
•o 1E-01 -
g 1E-02 -
S 1E-03 -
1E-04 -
1E-05 -




O
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00
00




o ND HQ • Detect HQ 	 HQ = 1




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21st St ' 21st St ' i i i i
Pond- Pond- BVP Ogden Ogden Ogden Weber Weber Weber Weber
West East Pond Reach A Reach B Reach C Reach A Reach B Reach C Reach D
(ref) (ref) (ref)
Statistic
N Detect HQs > 1:
NNDHQs>l:
NAllHQs 1:
NNDHQs>l:
NAllHQs
-------
                                                                       Appendix E-3
                                       Benthic Macroinvertebrate HQs for Direct Contact with PAHs in Sediment
                                                               (Based on Non-SIM Analysis)

                                             Baseline Ecological Risk Assessment for the Ogden Railyard Site
                                                                       CHRYSENE

                                                        Based on the Sediment Effect Concentration (SEC)

o ND HQ • Detect HQ 	 HQ = 1

1E+05 -
-S- 1E+04 -
§ 1E+03 -
S 1E+02 -
.S 1E+01 -
1 1E+00 -
•o 1E-01 -
g 1E-02 -
S 1E-03 -
1E-04 -





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21st St ' 21st St ' i i i i
Pond- Pond- BVP Ogden Ogden Ogden Weber Weber Weber Weber
West East Pond Reach A Reach B Reach C Reach A Reach B Reach C Reach D
(ref) (ref) (ref)
Statistic
N Detect HQs > 1:
NNDHQs>l:
NAllHQs 1:
NNDHQs>l:
NAllHQs
-------
                                                                       Appendix E-3
                                       Benthic Macroinvertebrate HQs for Direct Contact with PAHs in Sediment
                                                              (Based on Non-SIM Analysis)

                                             Baseline Ecological Risk Assessment for the Ogden Railyard Site
                                                              DIBENZ[A,H] ANTHRACENE

                                                        Based on the Sediment Effect Concentration (SEC)
1E+06 -
1E+05 -
-S- 1E+04 -
§ 1E+03 -
S 1E+02 -
| 1E+01 -
1 1E+00 -
•o 1E-01 -
g 1E-02 -
S 1E-03 -
1E-04 -
1E-05 -




O







0 \







0
co
 1:
NNDHQs>l:
NAllHQs 1:
NNDHQs>l:
NAllHQs
-------
                                                                       Appendix E-3
                                       Benthic Macroinvertebrate HQs for Direct Contact with PAHs in Sediment
                                                               (Based on Non-SIM Analysis)

                                             Baseline Ecological Risk Assessment for the Ogden Railyard Site
                                                                    FLUORANTHENE

                                                        Based on the Sediment Effect Concentration (SEC)
1E+06 -
1E+05 -
-S- 1E+04 -
§ 1E+03 -
S 1E+02 -
.S 1E+01 -
1 1E+00 -
•o 1E-01 -
g 1E-02 -
S 1E-03 -
1E-04 -
1E-05 -





0
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21st St ' 21st St ' i i i i
Pond- Pond- BVP Ogden Ogden Ogden Weber Weber Weber Weber
West East Pond Reach A Reach B Reach C Reach A Reach B Reach C Reach D
(ref) (ref) (ref)
Statistic
N Detect HQs > 1:
NNDHQs>l:
NAllHQs 1:
NNDHQs>l:
NAllHQs
-------
                                                                       Appendix E-3
                                       Benthic Macroinvertebrate HQs for Direct Contact with PAHs in Sediment
                                                               (Based on Non-SIM Analysis)

                                             Baseline Ecological Risk Assessment for the Ogden Railyard Site
                                                                       FLUORENE

                                                        Based on the Sediment Effect Concentration (SEC)
1E+06 -
1E+05 -
-S- 1E+04 -
§ 1E+03 -
S 1E+02 -
| 1E+01 -
1 1E+00 -
•o 1E-01 -
g 1E-02 -
S 1E-03 -
1E-04 -
1E-05 -




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21st St ' 21st St ' i i i i
Pond- Pond- BVP Ogden Ogden Ogden Weber Weber Weber Weber
West East Pond Reach A Reach B Reach C Reach A Reach B Reach C Reach D
(ref) (ref) (ref)
Statistic
N Detect HQs > 1:
NNDHQs>l:
NAllHQs 1:
NNDHQs>l:
NAllHQs
-------
                                                                      Appendix E-3
                                       Benthic Macroinvertebrate HQs for Direct Contact with PAHs in Sediment
                                                              (Based on Non-SIM Analysis)

                                             Baseline Ecological Risk Assessment for the Ogden Railyard Site
                                                              INDENO[1,2,3-C,D]PYRENE

                                                        Based on the Sediment Effect Concentration (SEC)
1E+06 -
1E+05 -
-S- 1E+04 -
§ 1E+03 -
S 1E+02 -
| 1E+01 -
1 1E+00 -
•o 1E-01 -
g 1E-02 -
S 1E-03 -
1E-04 -
1E-05 -




O






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21st St ' 21st St ' i i i i
Pond- Pond- BVP Ogden Ogden Ogden Weber Weber Weber Weber
West East Pond Reach A Reach B Reach C Reach A Reach B Reach C Reach D
(ref) (ref) (ref)
Statistic
N Detect HQs > 1:
NNDHQs>l:
NAllHQs


Weber
Pond Reach A Reach B Reach C Reach A Reach B Reach C Reach D
(ref) (ref) (ref)
Statistic
N Detect HQs > 1:
NNDHQs>l:
NAllHQs
-------
                                                                       Appendix E-3
                                       Benthic Macroinvertebrate HQs for Direct Contact with PAHs in Sediment
                                                               (Based on Non-SIM Analysis)

                                             Baseline Ecological Risk Assessment for the Ogden Railyard Site
                                                                     NAPHTHALENE

                                                        Based on the Sediment Effect Concentration (SEC)

o ND HQ • Detect HQ 	 HQ = 1

1E+05 -
-S- 1E+04 -
§ 1E+03 -
S 1E+02 -
.S 1E+01 -
= 1E+00 -
•o 1E-01 -

g 1E-02 -
S 1E-03 -
1E-04 -





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21st St ' 21st St '''''''
Pond- Pond- BVP Ogden Ogden Ogden Weber Weber Weber Weber
West East Pond Reach A Reach B Reach C Reach A Reach B Reach C Reach D
(ref) (ref) (ref)
Statistic
N Detect HQs > 1:
NNDHQs>l:
NAllHQs 1:
NNDHQs>l:
NAllHQs
-------
                                                                       Appendix E-3
                                       Benthic Macroinvertebrate HQs for Direct Contact with PAHs in Sediment
                                                              (Based on Non-SIM Analysis)

                                             Baseline Ecological Risk Assessment for the Ogden Railyard Site
                                                                    PHENANTHRENE

                                                        Based on the Sediment Effect Concentration (SEC)
1E+06 -
1E+05 -
-S- 1E+04 -
§ 1E+03 -
S 1E+02 -
.S 1E+01 -
1 1E+00 -
•o 1E-01 -
g 1E-02 -
S 1E-03 -
1E-04 -
1E-05 -





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21st St ' 21st St ' i i i i
Pond- Pond- BVP Ogden Ogden Ogden Weber Weber Weber Weber
West East Pond Reach A Reach B Reach C Reach A Reach B Reach C Reach D
(refl (ref) (ref)
Statistic
N Detect HQs > 1:
NNDHQs>l:
NAllHQs 1:
NNDHQs>l:
NAllHQs
-------
                                                                       Appendix E-3
                                       Benthic Macroinvertebrate HQs for Direct Contact with PAHs in Sediment
                                                               (Based on Non-SIM Analysis)

                                             Baseline Ecological Risk Assessment for the Ogden Railyard Site
                                                                         PYRENE

                                                        Based on the Sediment Effect Concentration (SEC)
1E+06 -
1E+05 -
-S- 1E+04 -
§ 1E+03 -
S 1E+02 -
.S 1E+01 -
1 1E+00 -
•o 1E-01 -
g 1E-02 -
S 1E-03 -
1E-04 -
1E-05 -





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21st St ' 21st St ' i i i i
Pond- Pond- BVP Ogden Ogden Ogden Weber Weber Weber Weber
West East Pond Reach A Reach B Reach C Reach A Reach B Reach C Reach D
(refl (ref) (ref)
Statistic
N Detect HQs > 1:
NNDHQs>l:
NAllHQs


Weber








O •


Weber








•
**

Weber
Pond Reach A Reach B Reach C Reach A Reach B Reach C Reach D
(refl (ref) (ref)
Statistic
N Detect HQs > 1:
NNDHQs>l:
NAllHQs
-------
                                                                    Appendix E-4
                        Benthic Macroinvertebrate HQs for Direct Contact with PAHs in Sediment (Based on SIM Analysis)

                                          Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                                           2-METHYLNAPHTHALENE

                                                      Based on the Sediment Effect Concentration (SEC)
0 ND HQ • Detect HQ 	 HQ =


1E+02 -
§* 1E+01 -


g 1E+00 -
"o
§, 1E-01 -
g 1E-02 -

M
1E-03 -




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21st St Pond - 21st St Pond - BVP Ogden Ogden Ogden
West East Pond Reach A Reach B Reach C
(ref) (ref)
Statistic
N Detect HQs > 1:
NNDHQs> 1:
NAllHQs 1:
NNDHQs> 1:
NAllHQs
-------
                                                                     Appendix E-4
                        Benthic Macroinvertebrate HQs for Direct Contact with PAHs in Sediment (Based on SIM Analysis)

                                           Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                                                  ACENAPHTHENE

                                                      Based on the Sediment Effect Concentration (SEC)
0 ND HQ • Detect HQ 	 HQ =


1E+02 -
&
a IE+OI -
+2
g 1E+00 -
"o
§, 1E-01 -
•o
g 1E-02 -

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1E-03 -




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21st St Pond- 21st St Pond- BVP Ogden Ogden Ogden
West East Pond Reach A Reach B Reach C
(ref) (ref)
Statistic
N Detect HQs > 1:
NNDHQs> 1:
NAllHQs 1:
NNDHQs> 1:
NAllHQs
-------
                                                                    Appendix E-4
                        Benthic Macroinvertebrate HQs for Direct Contact with PAHs in Sediment (Based on SIM Analysis)

                                           Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                                                ACENAPHTHYLENE

                                                      Based on the Sediment Effect Concentration (SEC)
0 ND HQ • Detect HQ 	 HQ =


1E+02 -

rv
S 1E+01 -
~
g 1E+00 -
"o
§, 1E-01 -
•o
g 1E-02 -

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1E-03 -




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21st St Pond - 21st St Pond - BVP Ogden Ogden Ogden
West East Pond Reach A Reach B Reach C
(ret) (ref)
Statistic
N Detect HQs > 1:
NNDHQs> 1:
NAllHQs 1:
NNDHQs> 1:
NAllHQs
-------
                                                                     Appendix E-4
                        Benthic Macroinvertebrate HQs for Direct Contact with PAHs in Sediment (Based on SIM Analysis)

                                           Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                                                    ANTHRACENE

                                                       Based on the Sediment Effect Concentration (SEC)
0 ND HQ • Detect HQ 	 HQ =


1E+02 -
§* 1E+01 -
~
g 1E+00 -
"o
§, 1E-01 -
•o
g 1E-02 -

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1E-03 -






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21st St Pond - 21st St Pond - BVP Ogden Ogden Ogden
West East Pond Reach A Reach B Reach C
(ref) (ref)
Statistic
N Detect HQs > 1:
NNDHQs> 1:
NAllHQs 1:
NNDHQs> 1:
NAllHQs
-------
                                                                    Appendix E-4
                        Benthic Macroinvertebrate HQs for Direct Contact with PAHs in Sediment (Based on SIM Analysis)

                                          Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                                             BENZO[A]ANTHRACENE

                                                      Based on the Sediment Effect Concentration (SEC)

1E+02 -
§* 1E+01 -
g 1E+00 -
"o
§, 1E-01 -
•o
g 1E-02 -
«
1E-03 -


••
•
0 ND HQ • Detect HQ 	 HQ =


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:
21st St Pond- 21st St Pond- BVP Ogden Ogden Ogden
West East Pond Reach A Reach B Reach C
(ret) (ref)
Statistic
N Detect HQs > 1:
NNDHQs> 1:
NAllHQs 1:
NNDHQs> 1:
NAllHQs
-------
                                                                     Appendix E-4
                        Benthic Macroinvertebrate HQs for Direct Contact with PAHs in Sediment (Based on SIM Analysis)

                                           Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                                                 BENZO[A]PYRENE

                                                      Based on the Sediment Effect Concentration (SEC)
0 ND HQ • Detect HQ 	 HQ =


1E+02 -
§* 1E+01 -
g 1E+00 -
0
§, 1E-01 -
•o
g 1E-02 -

M
1E-03 -



.
ft

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21st St Pond - 21st St Pond - BVP Ogden Ogden Ogden
West East Pond Reach A Reach B Reach C
(ret) (ref)
Statistic
N Detect HQs > 1:
NNDHQs> 1:
NAllHQs 1:
NNDHQs> 1:
NAllHQs
-------
                                                                    Appendix E-4
                        Benthic Macroinvertebrate HQs for Direct Contact with PAHs in Sediment (Based on SIM Analysis)

                                           Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                                            BENZO[B]FLUORANTHENE

                                                      Based on the Sediment Effect Concentration (SEC)
0 ND HQ • Detect HQ 	 HQ =


1E+02 -
§* 1E+01 -
g 1E+00 -
"o
§, 1E-01 -
•o
S 1E-02 -

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1E-03 -



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21st St Pond- 21st St Pond- BVP Ogden Ogden Ogden
West East Pond Reach A Reach B Reach C
(ret) (ref)
Statistic
N Detect HQs > 1:
NNDHQs> 1:
NAllHQs 1:
NNDHQs> 1:
NAllHQs
-------
                                                                    Appendix E-4
                        Benthic Macroinvertebrate HQs for Direct Contact with PAHs in Sediment (Based on SIM Analysis)

                                           Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                                             BENZO[G,H,I]PERYLENE

                                                      Based on the Sediment Effect Concentration (SEC)
0 ND HQ • Detect HQ 	 HQ =


1E+02 -
§* 1E+01 -
g 1E+00 -
"o
§, 1E-01 -
•o
g 1E-02 -

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1E-03 -




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21st St Pond- 21st St Pond- BVP Ogden Ogden Ogden
West East Pond Reach A Reach B Reach C
(ref) (ref)
Statistic
N Detect HQs > 1:
NNDHQs> 1:
NAllHQs 1:
NNDHQs> 1:
NAllHQs
-------
                                                                    Appendix E-4
                        Benthic Macroinvertebrate HQs for Direct Contact with PAHs in Sediment (Based on SIM Analysis)

                                          Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                                           BENZO[K]FLUORANTHENE

                                                      Based on the Sediment Effect Concentration (SEC)
0 ND HQ • Detect HQ 	 HQ =


1E+02 -
§* 1E+01 -

g 1E+00 -
"o
§, 1E-01 -
•o
g 1E-02 -

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1E-03 -



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21st St Pond - 21st St Pond - BVP Ogden Ogden Ogden
West East Pond Reach A Reach B Reach C
(ref) (ref)
Statistic
N Detect HQs > 1:
NNDHQs> 1:
NAllHQs 1:
NNDHQs> 1:
NAllHQs
-------
                                                                     Appendix E-4
                        Benthic Macroinvertebrate HQs for Direct Contact with PAHs in Sediment (Based on SIM Analysis)

                                           Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                                                      CHRYSENE

                                                       Based on the Sediment Effect Concentration (SEC)
0 ND HQ • Detect HQ 	 HQ =


1E+02 -
§* 1E+01 -
g 1E+00 -
"o
§, 1E-01 -
•o
g 1E-02 -

M
1E-03 -



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21st St Pond - 21st St Pond - BVP Ogden Ogden Ogden
West East Pond Reach A Reach B Reach C
(ret) (ref)
Statistic
N Detect HQs > 1:
NNDHQs> 1:
NAllHQs 1:
NNDHQs> 1:
NAllHQs
-------
                                                                    Appendix E-4
                        Benthic Macroinvertebrate HQs for Direct Contact with PAHs in Sediment (Based on SIM Analysis)

                                          Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                                           DIBENZ[A,H]ANTHRACENE

                                                      Based on the Sediment Effect Concentration (SEC)
0 ND HQ • Detect HQ 	 HQ =


1E+02 -
§* 1E+01 -
+2
g 1E+00 -
0
§> 1E-01 -
•o
g 1E-02 -

K
IE-OS -




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21st St Pond- 21st St Pond- BVP Ogden Ogden Ogden
West East Pond Reach A Reach B Reach C
(ref) (ref)
Statistic
N Detect HQs > 1:
NNDHQs> 1:
NAllHQs 1:
NNDHQs> 1:
NAllHQs
-------
                                                                     Appendix E-4
                        Benthic Macroinvertebrate HQs for Direct Contact with PAHs in Sediment (Based on SIM Analysis)

                                           Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                                                  FLUORANTHENE

                                                       Based on the Sediment Effect Concentration (SEC)
0 ND HQ • Detect HQ 	 HQ =


1E+02 -
§* 1E+01 -
g 1E+00 -
"o
§, 1E-01 -
•o
g 1E-02 -

M
1E-03 -




•

f






•











•








• .









•









•
•






21st St Pond- 21st St Pond- BVP Ogden Ogden Ogden
West East Pond Reach A Reach B Reach C
(ref) (ref)
Statistic
N Detect HQs > 1:
NNDHQs> 1:
NAllHQs 1:
NNDHQs> 1:
NAllHQs
-------
                                                                      Appendix E-4
                        Benthic Macroinvertebrate HQs for Direct Contact with PAHs in Sediment (Based on SIM Analysis)

                                           Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                                                      FLUORENE

                                                       Based on the Sediment Effect Concentration (SEC)
0 ND HQ • Detect HQ 	 HQ =


1E+02 -
§* 1E+01 -
x
g 1E+00 -

"o
§, 1E-01 -
•o
g 1E-02 -

M
1E-03 -







o m
0 s






















CD












*







O

Q
0
O











o





21st St Pond - 21st St Pond - BVP Ogden Ogden Ogden
West East Pond Reach A Reach B Reach C
(ret) (ref)
Statistic
N Detect HQs > 1:
NNDHQs> 1:
NAllHQs 1:
NNDHQs> 1:
NAllHQs
-------
                                                                    Appendix E-4
                        Benthic Macroinvertebrate HQs for Direct Contact with PAHs in Sediment (Based on SIM Analysis)

                                           Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                                            INDENO[1,2,3-C,D]PYRENE

                                                      Based on the Sediment Effect Concentration (SEC)
0 ND HQ • Detect HQ 	 HQ =


1E+02 -
§* 1E+01 -
g 1E+00 -
"o
§, 1E-01 -
•o
g 1E-02 -

M
1E-03 -



.
"'
•




























*









1









. •







21st St Pond - 21st St Pond - BVP Ogden Ogden Ogden
West East Pond Reach A Reach B Reach C
(ref) (ref)
Statistic
N Detect HQs > 1:
NNDHQs> 1:
NAllHQs 1:
NNDHQs> 1:
NAllHQs
-------
                                                                     Appendix E-4
                        Benthic Macroinvertebrate HQs for Direct Contact with PAHs in Sediment (Based on SIM Analysis)

                                           Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                                                   NAPHTHALENE

                                                       Based on the Sediment Effect Concentration (SEC)
0 ND HQ • Detect HQ 	 HQ =


1E+02 -
§* 1E+01 -
g 1E+00 -
"o
§, 1E-01 -
•o
g 1E-02 -
M
1E-03 -




O
° .
0 |






"









0 0







0

o








0






o

0
•



21st St Pond- 21st St Pond- BVP Ogden Ogden Ogden
West East Pond Reach A Reach B Reach C
(ref) (ref)
Statistic
N Detect HQs > 1:
NNDHQs> 1:
NAllHQs 1:
NNDHQs> 1:
NAllHQs
-------
                                                                     Appendix E-4
                        Benthic Macroinvertebrate HQs for Direct Contact with PAHs in Sediment (Based on SIM Analysis)

                                           Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                                                  PHENANTHRENE

                                                      Based on the Sediment Effect Concentration (SEC)
0 ND HQ • Detect HQ 	 HQ =


1E+02 -
§* 1E+01 -
g 1E+00 -
"o
§, 1E-01 -
•o
S 1E-02 -

M
1E-03 -




\f
f






•









0*








'








• **








1.






21st St Pond - 21st St Pond - BVP Ogden Ogden Ogden
West East Pond Reach A Reach B Reach C
(ret) (ref)
Statistic
N Detect HQs > 1:
NNDHQs> 1:
NAllHQs 1:
NNDHQs> 1:
NAllHQs
-------
                                                                     Appendix E-4
                        Benthic Macroinvertebrate HQs for Direct Contact with PAHs in Sediment (Based on SIM Analysis)

                                           Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                                                        PYRENE

                                                       Based on the Sediment Effect Concentration (SEC)
0 ND HQ • Detect HQ 	 HQ =


1E+02 -
§* 1E+01 -
g 1E+00 -
"o
§, 1E-01 -
•o
g 1E-02 -

M
1E-03 -



.
•*
• **


















..









*









.*









,.







21st St Pond- 21st St Pond- BVP Ogden Ogden Ogden
West East Pond Reach A Reach B Reach C
(ref) (ref)
Statistic
N Detect HQs > 1:
NNDHQs> 1:
NAllHQs 1:
NNDHQs> 1:
NAllHQs
-------
This page intentionally left blank to facilitate double-sided printing.

-------
                                                 Appendix E-5
           Benthic Macroinvertebrate HQs for Direct Contact with PAHs in Sediment Porewater

                       Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                        2-METHYLNAPHTHALENE
1E+03 -
1E+02 -
5ft
£ 1E+01 -
5ft
g 1E+00 -
o
5- 1E-01 -
| 1E-02 -
PM
1E-03 -
1E-04 -






0 *


o NDHQ • Detect HQ ^—HQ = 1







ooo








oo








o

21st Street Pond- 21st Street Pond - Ogden River - Reach B Ogden River - Reach C
East West
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs < 1:
Detect Samples:
All Samples:
Risk Category:
21st Street
Pond-
East
0
0
2
1
2
C
21st Street
Pond-
West
0
0
3
0
3
C
Ogden
River -
Reach B
0
0
2
0
2
C
Ogden
River -
Reach C
0
0
1
0
1
C
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Aquatic Risk_PW SIM only: Graph
1/13/2003

-------
                                                  Appendix E-5
           Benthic Macroinvertebrate HQs for Direct Contact with PAHs in Sediment Porewater

                       Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                               ACENAPHTHENE
1E+03 -
1E+02 -
5ft
£ 1E+01 -
5ft
g 1E+00 -
o
5- 1E-01 -
| 1E-02 -
M
1E-03 -
1E-04 -



,



•

o NDHQ • Detect HQ ^—HQ = 1






. •
o








o








o

21st Street Pond- 21st Street Pond - Ogden River - Reach B Ogden River - Reach C
East West
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs < 1:
Detect Samples:
All Samples:
Risk Category:
21st Street
Pond-
East
0
0
2
2
2
C
21st Street
Pond-
West
0
0
3
2
3
C
Ogden
River -
Reach B
0
0
2
1
2
C
Ogden
River -
Reach C
0
0
1
0
1
C
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Aquatic Risk_PW SIM only: Graph
1/13/2003

-------
                                                  Appendix E-5
           Benthic Macroinvertebrate HQs for Direct Contact with PAHs in Sediment Porewater

                       Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                             ACENAPHTHYLENE
1E+03 -
1E+02 -
5ft
£ 1E+01 -
5ft
g 1E+00 -
o
5- 1E-01 -
| 1E-02 -
1E-03 -
1E-04 -







O
o NDHQ • Detect HQ ^—HQ = 1







QD







.







O
21st Street Pond- 21st Street Pond - Ogden River - Reach B Ogden River - Reach C
East West
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs < 1:
Detect Samples:
All Samples:
Risk Category:
21st Street
Pond-
East
0
0
2
1
2
C
21st Street
Pond-
West
0
0
3
0
3
C
Ogden
River -
Reach B
0
0
2
0
2
C
Ogden
River -
Reach C
0
0
1
0
1
C
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Aquatic Risk_PW SIM only:  Graph
1/13/2003

-------
                                                 Appendix E-5
           Benthic Macroinvertebrate HQs for Direct Contact with PAHs in Sediment Porewater

                       Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                               ANTHRACENE
1E+03 -
1E+02 -
5ft
£ 1E+01 -
5ft
g 1E+00 -
o
5- 1E-01 -
| 1E-02 -
1E-03 -
1E-04 -





*
O

o NDHQ • Detect HQ ^—HQ = 1






o •







o







o

21st Street Pond- 21st Street Pond - Ogden River - Reach B Ogden River - Reach C
East West
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs < 1:
Detect Samples:
All Samples:
Risk Category:
21st Street
Pond-
East
0
0
2
1
2
C
21st Street
Pond-
West
0
0
3
2
3
C
Ogden
River -
Reach B
0
0
2
0
2
C
Ogden
River -
Reach C
0
0
1
0
1
C
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Aquatic Risk_PW SIM only: Graph
1/13/2003

-------
                                                Appendix E-5
           Benthic Macroinvertebrate HQs for Direct Contact with PAHs in Sediment Porewater

                       Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                         BENZO [A] ANTHRACENE
1E+03 -
1E+02 -
5ft
£ 1E+01 -
5ft
g 1E+00 -
o
5- 1E-01 -
| 1E-02 -
1E-03 -
1E-04 -




O
o


o NDHQ • Detect HQ ^—HQ = 1





OD







0 0







0


21st Street Pond- 21st Street Pond - Ogden River - Reach B Ogden River - Reach C
East West
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs < 1:
Detect Samples:
All Samples:
Risk Category:
21st Street
Pond-
East
0
0
2
0
2
C
21st Street
Pond-
West
0
0
3
1
3
C
Ogden
River -
Reach B
0
0
2
0
2
C
Ogden
River -
Reach C
0
0
1
0
1
C
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Aquatic Risk_PW SIM only: Graph
1/13/2003

-------
                                                 Appendix E-5
           Benthic Macroinvertebrate HQs for Direct Contact with PAHs in Sediment Porewater

                       Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                              BENZO[A]PYRENE
1E+03 -
1E+02 -
5ft
£ 1E+01 -
5ft
g 1E+00 -
o
5- 1E-01 -
| 1E-02 -
1E-03 -
1E-04 -



O
O


o NDHQ • Detect HQ ^—HQ = 1




ooo






o o






o


21st Street Pond- 21st Street Pond - Ogden River - Reach B Ogden River - Reach C
East West
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs < 1:
Detect Samples:
All Samples:
Risk Category:
21st Street
Pond-
East
0
0
2
0
2
C
21st Street
Pond-
West
0
0
3
0
3
C
Ogden
River -
Reach B
0
0
2
0
2
C
Ogden
River -
Reach C
0
0
1
0
1
C
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Aquatic Risk_PW SIM only: Graph
1/13/2003

-------
                                                 Appendix E-5
           Benthic Macroinvertebrate HQs for Direct Contact with PAHs in Sediment Porewater

                       Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                        BENZO [B] FLUORANTHENE
1E+03 -
1E+02 -
5ft
£ 1E+01 -
5ft
g 1E+00 -
o
5- 1E-01 -
| 1E-02 -
1E-03 -
1E-04 -



o
o


o NDHQ • Detect HQ ^—HQ = 1




o o






oo






o


21st Street Pond- 21st Street Pond - Ogden River - Reach B Ogden River - Reach C
East West
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs < 1:
Detect Samples:
All Samples:
Risk Category:
21st Street
Pond-
East
0
0
2
0
2
C
21st Street
Pond-
West
0
0
3
1
3
C
Ogden
River -
Reach B
0
0
2
0
2
C
Ogden
River -
Reach C
0
0
1
0
1
C
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Aquatic Risk_PW SIM only:  Graph
1/13/2003

-------
                                                 Appendix E-5
           Benthic Macroinvertebrate HQs for Direct Contact with PAHs in Sediment Porewater

                       Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                         BENZO [G,H,I] PERYLENE
1E+03 -
1E+02 -
5ft
£ 1E+01 -
5ft
g 1E+00 -
"o
5- 1E-01 -
| 1E-02 -
1E-03 -
1E-04 -



u
O



o NDHQ • Detect HQ ^—HQ = 1




O CO







CO







o



21st Street Pond- 21st Street Pond - Ogden River - Reach B Ogden River - Reach C
East West
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs < 1:
Detect Samples:
All Samples:
Risk Category:
21st Street
Pond-
East
0
0
2
0
2
C
21st Street
Pond-
West
0
0
3
0
3
C
Ogden
River -
Reach B
0
0
2
0
2
C
Ogden
River -
Reach C
0
0
1
0
1
C
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Aquatic Risk_PW SIM only: Graph
1/13/2003

-------
                                                 Appendix E-5
           Benthic Macroinvertebrate HQs for Direct Contact with PAHs in Sediment Porewater

                       Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                        BENZO [K] FLUORANTHENE
1E+03 -
1E+02 -
5ft
£ 1E+01 -
5ft
g 1E+00 -
o
5- 1E-01 -
| 1E-02 -
1E-03 -
1E-04 -



O
O



o NDHQ • Detect HQ ^—HQ = 1




00 0







0 0







o



21st Street Pond- 21st Street Pond - Ogden River - Reach B Ogden River - Reach C
East West
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs < 1:
Detect Samples:
All Samples:
Risk Category:
21st Street
Pond-
East
0
0
2
0
2
C
21st Street
Pond-
West
0
0
3
0
3
C
Ogden
River -
Reach B
0
0
2
0
2
C
Ogden
River -
Reach C
0
0
1
0
1
C
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Aquatic Risk_PW SIM only:  Graph
1/13/2003

-------
                                                  Appendix E-5
           Benthic Macroinvertebrate HQs for Direct Contact with PAHs in Sediment Porewater

                       Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                                  CHRYSENE
1E+03 -
1E+02 -
5ft
£ 1E+01 -
5ft
g 1E+00 -
o
5- 1E-01 -
| 1E-02 -
1E-03 -
1E-04 -




O
O


o NDHQ • Detect HQ ^—HQ = 1





000







00







o


21st Street Pond- 21st Street Pond - Ogden River - Reach B Ogden River - Reach C
East West
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs < 1:
Detect Samples:
All Samples:
Risk Category:
21st Street
Pond-
East
0
0
2
0
2
C
21st Street
Pond-
West
0
0
3
0
3
C
Ogden
River -
Reach B
0
0
2
0
2
C
Ogden
River -
Reach C
0
0
1
0
1
C
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Aquatic Risk_PW SIM only:  Graph
1/13/2003

-------
                                                 Appendix E-5
           Benthic Macroinvertebrate HQs for Direct Contact with PAHs in Sediment Porewater

                       Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                        DIBENZ [A,H] ANTHRACENE
1E+03 -
1E+02 -
5ft
£ 1E+01 -
5ft
g 1E+00 -
o
5- 1E-01 -
| 1E-02 -
1E-03 -
1E-04 -



O




o NDHQ • Detect HQ ^—HQ = 1



ODD







O O







O




21st Street Pond- 21st Street Pond - Ogden River - Reach B Ogden River - Reach C
East West
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs < 1:
Detect Samples:
All Samples:
Risk Category:
21st Street
Pond-
East
0
1
1
0
2
B
21st Street
Pond-
West
0
0
3
0
3
C
Ogden
River -
Reach B
0
0
2
0
2
C
Ogden
River -
Reach C
0
0
1
0
1
C
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Aquatic Risk_PW SIM only: Graph
1/13/2003

-------
                                                 Appendix E-5
           Benthic Macroinvertebrate HQs for Direct Contact with PAHs in Sediment Porewater

                       Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                              FLUORANTHENE
1E+03 -
1E+02 -
5ft
£ 1E+01 -
5ft
g 1E+00 -
o
5- 1E-01 -
"S
| 1E-02 -
1E-03 -
1E-04 -




•

O


o NDHQ • Detect HQ ^—HQ = 1






0 .*

















o


21st Street Pond- 21st Street Pond - Ogden River - Reach B Ogden River - Reach C
East West
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs < 1:
Detect Samples:
All Samples:
Risk Category:
21st Street
Pond-
East
0
0
2
1
2
C
21st Street
Pond-
West
0
0
3
2
3
C
Ogden
River -
Reach B
0
0
2
0
2
C
Ogden
River -
Reach C
0
0
1
0
1
C
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Aquatic Risk_PW SIM only: Graph
1/13/2003

-------
                                                 Appendix E-5
           Benthic Macroinvertebrate HQs for Direct Contact with PAHs in Sediment Porewater

                       Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                                 FLUORENE
1E+03 -
1E+02 -
5ft
£ 1E+01 -
5ft
g 1E+00 -
o
5- 1E-01 -
g 1E-02 -
PH
1E-03 -
1E-04 -




•


O

o NDHQ • Detect HQ ^—HQ = 1







o •








o








o

21st Street Pond- 21st Street Pond - Ogden River - Reach B Ogden River - Reach C
East West
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs < 1:
Detect Samples:
All Samples:
Risk Category:
21st Street
Pond-
East
0
0
2
1
2
C
21st Street
Pond-
West
0
0
3
2
3
C
Ogden
River -
Reach B
0
0
2
1
2
C
Ogden
River -
Reach C
0
0
1
0
1
C
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Aquatic Risk_PW SIM only: Graph
1/13/2003

-------
                                                 Appendix E-5
           Benthic Macroinvertebrate HQs for Direct Contact with PAHs in Sediment Porewater

                       Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                         INDENO [1,2,3-C,D] P YRENE
1E+03 -
1E+02 -
5ft
£ 1E+01 -
5ft
g 1E+00 -
o
5- 1E-01 -
| 1E-02 -
1E-03 -
1E-04 -



O




o NDHQ • Detect HQ ^—HQ = 1



ooo







oo







o




21st Street Pond- 21st Street Pond - Ogden River - Reach B Ogden River - Reach C
East West
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs < 1:
Detect Samples:
All Samples:
Risk Category:
21st Street
Pond-
East
0
1
1
0
2
B
21st Street
Pond-
West
0
0
3
0
3
C
Ogden
River -
Reach B
0
0
2
0
2
C
Ogden
River -
Reach C
0
0
1
0
1
C
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Aquatic Risk_PW SIM only:  Graph
1/13/2003

-------
                                                 Appendix E-5
           Benthic Macroinvertebrate HQs for Direct Contact with PAHs in Sediment Porewater

                       Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                               NAPHTHALENE
1E+03 -
1E+02 -
5ft
£ 1E+01 -
5ft
g 1E+00 -
o
5- 1E-01 -
| 1E-02 -
1E-03 -
1E-04 -





9
•

o NDHQ • Detect HQ ^—HQ = 1







fHP







•
o







o
21st Street Pond- 21st Street Pond - Ogden River - Reach B Ogden River - Reach C
East West
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs < 1:
Detect Samples:
All Samples:
Risk Category:
21st Street
Pond-
East
0
0
2
2
2
C
21st Street
Pond-
West
0
0
3
0
3
C
Ogden
River -
Reach B
0
0
2
1
2
C
Ogden
River -
Reach C
0
0
1
0
1
C
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Aquatic Risk_PW SIM only:  Graph
1/13/2003

-------
                                                  Appendix E-5
           Benthic Macroinvertebrate HQs for Direct Contact with PAHs in Sediment Porewater

                       Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                               PHENANTHRENE
1E+03 -
1E+02 -
5ft
£ 1E+01 -
5ft
g 1E+00 -
o
5- 1E-01 -
| 1E-02 -
1E-03 -
1E-04 -






O

o NDHQ • Detect HQ ^—HQ = 1






OOD







O O







O

21st Street Pond- 21st Street Pond - Ogden River - Reach B Ogden River - Reach C
East West
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs < 1:
Detect Samples:
All Samples:
Risk Category:
21st Street
Pond-
East
0
0
2
1
2
C
21st Street
Pond-
West
0
0
3
0
3
C
Ogden
River -
Reach B
0
0
2
0
2
C
Ogden
River -
Reach C
0
0
1
0
1
C
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Aquatic Risk_PW SIM only:  Graph
1/13/2003

-------
                                                  Appendix E-5
           Benthic Macroinvertebrate HQs for Direct Contact with PAHs in Sediment Porewater

                       Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                                    PYRENE
1E+03 -
1E+02 -
5ft
£ 1E+01 -
5ft
g 1E+00 -
o
5- 1E-01 -
| 1E-02 -
1E-03 -
1E-04 -




•

O

o NDHQ • Detect HQ ^—HQ = 1














o o







o

21st Street Pond- 21st Street Pond - Ogden River - Reach B Ogden River - Reach C
East West
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs < 1:
Detect Samples:
All Samples:
Risk Category:
21st Street
Pond-
East
0
0
2
1
2
C
21st Street
Pond-
West
0
0
3
3
3
C
Ogden
River -
Reach B
0
0
2
0
2
C
Ogden
River -
Reach C
0
0
1
0
1
C
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Aquatic Risk_PW SIM only:  Graph
1/13/2003

-------
This page intentionally left blank to facilitate double-sided printing.

-------
                                               Appendix E-6
                                 HQs for Fish Based on Fish Tissue Data

                   Baseline Ecological Risk Assessment for the Ogden Kailyard Site

                                             AROCLOR-1260
1E+01 -
& 1E+00 -
1 1E-01 -
o
0- 1E-02 -
"2
1 1E-03-
1E-04 -
1E-05 -





^

Carcass


^L
£
^^
Q
Fillet
o ND HQ • Detect HQ ^— HQ = 1





Liver


•v

Whole
Body
21st Street Pond





Fillet
Buena Ventura
Park Pond




Fillet





Whole
Body
Ogden River




Fillet
Weber
River
Statistic
Detect HQs > 1 :
ND HQs > 1 :
All HQs < 1 :
Detect Samples:
All Samples:
Risk Category:
2 1st Street Pond
Carcass
0
0
22
22
22
C
Fillet
0
0
22
21
22
C
Liver
0
0
0
0
0
na
Body
0
0
1
1
1
C
Buena
Ventura
Park Pond
Fillet
0
0
0
0
0
na
Ogden River
Fillet
0
0
0
0
0
na
Body
0
0
0
0
0
na
Weber
River
Fillet
0
0
0
0
0
na
         A = Risk to the sub-population at this location are possible
         B = Risks to the sub-population at this location cannot be determined
         C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
         na = No data for this chemical in this location
Aquatic Risk_Fish:  Graph
1/13/2003

-------
                                               Appendix E-6
                                HQs for Fish Based on Fish Tissue Data

                   Baseline Ecological Risk Assessment for the Ogden Kailyard Site

                                                 PCB-126
1E+02 -i
1E+01 -
& 1E+00 -
1 1E-01 -
o
0- 1E-02 -
"2
1 1E-03-
1E-04 -
1E-05 -








Carcass





Fillet
o ND HQ • Detect HQ ^— HQ = 1






Liver





Whole
Body
21st Street Pond





0
Fillet
Buena Ventura
Park Pond



.»
00
Fillet




O
§
Whole
Body
Ogden River



S

Fillet
Weber
River
Statistic
Detect HQs > 1 :
ND HQs > 1 :
All HQs < 1 :
Detect Samples:
All Samples:
Risk Category:
2 1st Street Pond
Carcass
0
0
0
0
0
na
Fillet
0
0
2
2
2
C
Liver
0
0
0
0
0
na
Body
0
0
0
0
0
na
Buena
Ventura
Park Pond
Fillet
0
0
1
0
1
C
Ogden River
Fillet
0
0
5
3
5
C
Body
0
0
5
2
5
C
Weber
River
Fillet
0
0
2
2
2
C
         A = Risk to the sub-population at this location are possible
         B = Risks to the sub-population at this location cannot be determined
         C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
         na = No data for this chemical in this location
Aquatic Risk_Fish:  Graph
1/13/2003

-------
                                               Appendix E-6
                                 HQs for Fish Based on Fish Tissue Data

                    Baseline Ecological Risk Assessment for the Ogden Kailyard Site

                                                  4,4'-DDD
1E+02 -i
1E+01 -
g 1E+00 -
(K
1 1E-01 -
o
0- 1E-02 -
"2
1 1E-03-
1E-04 -
1E-05 -





•_
OD *



Carcass


uflD ^^I^B




Fillet
o ND HQ • Detect HQ ^— HQ = 1








Liver







Whole
Body
21st Street Pond








Fillet
Buena Ventura
Park Pond







Fillet








Whole
Body
Ogden River







Fillet
Weber
River
Statistic
Detect HQs > 1 :
ND HQs > 1 :
All HQs < 1 :
Detect Samples:
All Samples:
Risk Category:
2 1st Street Pond
Carcass
2
0
20
12
22
C
Fillet
0
0
22
11
22
C
Liver
0
0
0
0
0
na
Body
6
0
1
7
7
A
Buena
Ventura
Park Pond
Fillet
0
0
0
0
0
na
Ogden River
Fillet
0
0
0
0
0
na
Body
0
0
0
0
0
na
Weber
River
Fillet
0
0
0
0
0
na
         A = Risk to the sub-population at this location are possible
         B = Risks to the sub-population at this location cannot be determined
         C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
         na = No data for this chemical in this location
Aquatic Risk_Fish: Graph
1/13/2003

-------
                                               Appendix E-6
                                 HQs for Fish Based on Fish Tissue Data

                    Baseline Ecological Risk Assessment for the Ogden Kailyard Site

                                                  4,4'-DDE
1E+02 -i
1E+01 -
& 1E+00 -
(K
1 1E-01 -
o
0- 1E-02 -
"2
1 1E-03-
1E-04 -
1E-05 -



— *t




Carcass
^V< £
Q^
™^^L




Fillet
o ND HQ • Detect HQ ^— HQ = 1







Liver
•*





Whole
Body
21st Street Pond







Fillet
Buena Ventura
Park Pond






Fillet







Whole
Body
Ogden River






Fillet
Weber
River
Statistic
Detect HQs > 1 :
ND HQs > 1 :
All HQs < 1 :
Detect Samples:
All Samples:
Risk Category:
2 1st Street Pond
Carcass
15
0
7
22
22
A
Fillet
9
0
13
22
22
A
Liver
0
0
0
0
0
na
Body
7
0
0
7
7
A
Buena
Ventura
Park Pond
Fillet
0
0
0
0
0
na
Ogden River
Fillet
0
0
0
0
0
na
Body
0
0
0
0
0
na
Weber
River
Fillet
0
0
0
0
0
na
         A = Risk to the sub-population at this location are possible
         B = Risks to the sub-population at this location cannot be determined
         C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
         na = No data for this chemical in this location
Aquatic Risk_Fish: Graph
1/13/2003

-------
                                               Appendix E-6
                                 HQs for Fish Based on Fish Tissue Data

                    Baseline Ecological Risk Assessment for the Ogden Kailyard Site

                                                  4,4'-DDT
1E+02 -i
1E+01 -
& 1E+00 -
(K
1 1E-01 -
o
0- 1E-02 -
"2
1 1E-03-
1E-04 -
1E-05 -





«fl» •



Carcass

^HHv




Fillet
o ND HQ • Detect HQ ^— HQ = 1







Liver

(BED




Whole
Body
21st Street Pond







Fillet
Buena Ventura
Park Pond






Fillet







Whole
Body
Ogden River






Fillet
Weber
River
Statistic
Detect HQs > 1 :
ND HQs > 1 :
All HQs < 1 :
Detect Samples:
All Samples:
Risk Category:
2 1st Street Pond
Carcass
0
0
22
2
22
C
Fillet
0
0
22
1
22
C
Liver
0
0
0
0
0
na
Body
0
0
7
0
7
C
Buena
Ventura
Park Pond
Fillet
0
0
0
0
0
na
Ogden River
Fillet
0
0
0
0
0
na
Body
0
0
0
0
0
na
Weber
River
Fillet
0
0
0
0
0
na
         A = Risk to the sub-population at this location are possible
         B = Risks to the sub-population at this location cannot be determined
         C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
         na = No data for this chemical in this location
Aquatic Risk_Fish: Graph
1/13/2003

-------
                                              Appendix E-6
                                HQs for Fish Based on Fish Tissue Data

                   Baseline Ecological Risk Assessment for the Ogden Kailyard Site

                                                DIELDRIN
1E+02 -i
1E+01 -
& 1E+00 -
1 1E-01 -
o
0- 1E-02 -
"2
1 1E-03-
1E-04 -
1E-05 -






— *

Carcass





Fillet
o ND HQ • Detect HQ ^— HQ = 1






Liver



COD

Whole
Body
21st Street Pond






Fillet
Buena Ventura
Park Pond





Fillet






Whole
Body
Ogden River





Fillet
Weber
River
Statistic
Detect HQs > 1 :
ND HQs > 1 :
All HQs < 1 :
Detect Samples:
All Samples:
Risk Category:
2 1st Street Pond
Carcass
0
0
22
2
22
C
Fillet
0
0
0
0
22
B
Liver
0
0
0
0
0
na
Body
0
0
7
0
7
C
Buena
Ventura
Park Pond
Fillet
0
0
0
0
0
na
Ogden River
Fillet
0
0
0
0
0
na
Body
0
0
0
0
0
na
Weber
River
Fillet
0
0
0
0
0
na
         A = Risk to the sub-population at this location are possible
         B = Risks to the sub-population at this location cannot be determined
         C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
         na = No data for this chemical in this location
Aquatic Risk_Fish:  Graph
1/13/2003

-------
                                               Appendix E-6
                                 HQs for Fish Based on Fish Tissue Data

                    Baseline Ecological Risk Assessment for the Ogden Kailyard Site

                                                 PHENOL
1E+02 -i
1E+01 -
& 1E+00 -
1 1E-01 -
o
0- 1E-02 -
"2
1 1E-03-
1E-04 -
1E-05 -








Carcass





Fillet
o ND HQ • Detect HQ ^— HQ = 1


o
3 •


Liver





Whole
Body
21st Street Pond






Fillet
Buena Ventura
Park Pond





Fillet






Whole
Body
Ogden River





Fillet
Weber
River
Statistic
Detect HQs > 1 :
ND HQs > 1 :
All HQs < 1 :
Detect Samples:
All Samples:
Risk Category:
2 1st Street Pond
Carcass
0
0
0
0
21
B
Fillet
0
0
0
0
23
B
Liver
0
0
4
1
4
C
Body
0
0
7
0
7
C
Buena
Ventura
Park Pond
Fillet
0
0
0
0
0
na
Ogden River
Fillet
0
0
0
0
0
na
Body
0
0
0
0
0
na
Weber
River
Fillet
0
0
0
0
0
na
         A = Risk to the sub-population at this location are possible
         B = Risks to the sub-population at this location cannot be determined
         C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
         na = No data for this chemical in this location
Aquatic Risk_Fish: Graph
1/13/2003

-------
This page intentionally left blank to facilitate double-sided printing.

-------
                                                   Appendix E-7
                        Terrestrial Receptor HQs for Direct Contact with Surface Soil

                        Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                                   ALUMINUM


g 1E+02 -
1 1E+01 "
o
1
a iB-oi -
mno



V.t




21st
St Pond
0 NDHC

•"




WB
Reach A
(ref)
) • Detect HQ^

•»
*?•




WB
Reach B
•HQ=1

••:




WB
Reach C


9,




WB
Reach D
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st Street
Pond
8
0
0
8
8
A
Weber
River -
Reach A
2
0
0
2
2
A
Weber
River -
Reach B
11
0
0
11
11
A
Weber
River -
Reach C
11
0
0
11
11
A
Weber
River -
Reach D
12
0
0
12
12
A
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Terrestrial Risk_Soil: Graph
1/13/2003

-------
                                                   Appendix E-7
                        Terrestrial Receptor HQs for Direct Contact with Surface Soil

                        Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                                   ANTIMONY

1 Tn-Wll -,
5ft
0>
5 1E-KX) -
§
o
"S 1E-01 -
|
M
mo?




o
o



«P

21st
St Pond
0 NDHC

•

•




WB
Reach A
(ref)
) • Detect HQ^





o


WB
Reach B
•HQ=1


O


&^


WB
Reach C


.
0 o



Q^

WB
Reach D
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st Street
Pond
0
0
8
0
8
C
Weber
River -
Reach A
1
0
1
2
2
A
Weber
River -
Reach B
0
0
11
0
11
C
Weber
River -
Reach C
0
0
11
0
11
C
Weber
River -
Reach D
1
0
11
7
12
C
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Terrestrial Risk_Soil: Graph
1/13/2003

-------
                                                  Appendix E-7
                        Terrestrial Receptor HQs for Direct Contact with Surface Soil

                       Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                                    ARSENIC

1 Tn-Wll -,
5ft
0>
^ 1E+00 -

1
"o
O*
1 1E'01 "
M
mno




0 ^
0




21st
St Pond
0 NDHC

•


•



WB
Reach A
(ref)
) • Detect HQ^




- :*



WB
Reach B
•HQ=1

.


CO Vf



WB
Reach C





A*
05 :•.



WB
Reach D
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st Street
Pond
0
0
11
9
11
C
Weber
River -
Reach A
1
0
1
2
2
A
Weber
River -
Reach B
0
0
19
13
19
C
Weber
River -
Reach C
1
0
13
12
14
C
Weber
River -
Reach D
0
0
14
12
14
C
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Terrestrial Risk_Soil: Graph
1/13/2003

-------
                                                   Appendix E-7
                        Terrestrial Receptor HQs for Direct Contact with Surface Soil

                        Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                                     BARIUM

1 Tn-Wll -,
5ft
0>
5 1E-KX) -
1
"o
1 1E'01 "
M
mo?




•
00 8b


21st
St Pond
0 NDHC


*


WB
Reach A
(ref)
) • Detect HQ^


•• *
t*r


WB
Reach B
•HQ=1


XI


WB
Reach C



ft


WB
Reach D
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st Street
Pond
1
0
10
5
11
C
Weber
River -
Reach A
0
0
2
2
2
C
Weber
River -
Reach B
0
0
19
19
19
C
Weber
River -
Reach C
0
0
14
14
14
C
Weber
River -
Reach D
0
0
14
14
14
C
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Terrestrial Risk_Soil: Graph
1/13/2003

-------
                                                   Appendix E-7
                        Terrestrial Receptor HQs for Direct Contact with Surface Soil

                        Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                                    CADMIUM

1 Tn-Wll -,
5ft
0>
5 1E-KX) -
-*^
1
"o
O*
1 1E'01 "
M
mno



.
o
o
o

OBDO
21st
St Pond
0 NDHC


•



WB
Reach A
(ref)
) • Detect HQ^


V
.


WB
Reach B
•HQ=1

•
••
•


WB
Reach C



/.*
0 .•


OOQO
WB
Reach D
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st Street
Pond
2
0
9
3
11
C
Weber
River -
Reach A
1
0
1
2
2
A
Weber
River -
Reach B
3
0
16
19
19
C
Weber
River -
Reach C
1
0
13
14
14
C
Weber
River -
Reach D
0
0
14
9
14
C
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Terrestrial Risk_Soil: Graph
1/13/2003

-------
                                                   Appendix E-7
                        Terrestrial Receptor HQs for Direct Contact with Surface Soil

                        Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                                   CHROMIUM


3 1E+01 -
5ft
-*rt
S
•g 1E+00 -
1
1 1E-01 -
M
mno



>



21st
St Pond
0 NDHC

*



WB
Reach A
(ref)
) • Detect HQ^

'"A



WB
Reach B
•HQ=1

*?



WB
Reach C


^



WB
Reach D
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st Street
Pond
11
0
0
11
11
A
Weber
River -
Reach A
2
0
0
2
2
A
Weber
River -
Reach B
19
0
0
19
19
A
Weber
River -
Reach C
14
0
0
14
14
A
Weber
River -
Reach D
14
0
0
14
14
A
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Terrestrial Risk_Soil: Graph
1/13/2003

-------
                                                   Appendix E-7
                        Terrestrial Receptor HQs for Direct Contact with Surface Soil

                        Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                                     COPPER

1 Tn-Wll -,
5ft
0>
5 1E-KX) -
-*^
1
"o
1 1E'01 "
M
mno



•
1.'


21st
St Pond
0 NDHC

•
•


WB
Reach A
(ref)
) • Detect HQ^


;•*


WB
Reach B
•HQ=1


tv.


WB
Reach C


•
• •*
•


WB
Reach D
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st Street
Pond
1
0
7
8
8
C
Weber
River -
Reach A
1
0
1
2
2
A
Weber
River -
Reach B
1
0
10
11
11
C
Weber
River -
Reach C
0
0
11
11
11
C
Weber
River -
Reach D
3
0
9
12
12
A
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Terrestrial Risk_Soil: Graph
1/13/2003

-------
                                                   Appendix E-7
                        Terrestrial Receptor HQs for Direct Contact with Surface Soil

                        Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                                       IRON



3 1E+01 -
5ft
S
•g 1E+00 -
•d
1 1E-01 -
M
mno



.c/.






21st
St Pond
0 NDHC

»






WB
Reach A
(ref)
) • Detect HQ^

I**.






WB
Reach B
•HQ=1

Y-






WB
Reach C


•






WB
Reach D
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st Street
Pond
8
0
0
8
8
A
Weber
River -
Reach A
2
0
0
2
2
A
Weber
River -
Reach B
11
0
0
11
11
A
Weber
River -
Reach C
11
0
0
11
11
A
Weber
River -
Reach D
12
0
0
12
12
A
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Terrestrial Risk_Soil: Graph
1/13/2003

-------
                                                   Appendix E-7
                        Terrestrial Receptor HQs for Direct Contact with Surface Soil

                        Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                                       LEAD


3 1E+01 -
5ft
S
•g 1E+00 -
1 1E-01 -
M
mno




»•


"'*.
21st
St Pond
0 NDHC

•

.


WB
Reach A
(ref)
) • Detect HQ^


• •«
^
rfgl
*
WB
Reach B
•HQ=1

.

^
V?

WB
Reach C



*
• S
;v

WB
Reach D
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st Street
Pond
3
0
8
11
11
A
Weber
River -
Reach A
2
0
0
2
2
A
Weber
River -
Reach B
6
0
13
19
19
A
Weber
River -
Reach C
2
0
12
14
14
C
Weber
River -
Reach D
5
0
9
14
14
A
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Terrestrial Risk_Soil: Graph
1/13/2003

-------
                                                   Appendix E-7
                        Terrestrial Receptor HQs for Direct Contact with Surface Soil

                        Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                                  MANGANESE

1 Tn-Wll -,
5ft
0-
n^
e 1E+00 -

§
o
1 1E'01 "
M
mno



:*<»








21st
St Pond
0 NDHC

*








WB
Reach A
(ref)
) • Detect HQ^

'•I








WB
Reach B
•HQ=1

^

^






WB
Reach C


.,








WB
Reach D
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st Street
Pond
8
0
0
8
8
A
Weber
River -
Reach A
2
0
0
2
2
A
Weber
River -
Reach B
10
0
1
11
11
A
Weber
River -
Reach C
9
0
2
11
11
A
Weber
River -
Reach D
9
0
3
12
12
A
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Terrestrial Risk_Soil: Graph
1/13/2003

-------
                                                   Appendix E-7
                        Terrestrial Receptor HQs for Direct Contact with Surface Soil

                        Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                                    MERCURY


3 1E+01 -
5ft
S
•g 1E+00 -
1 1E-01 -
M
mno






'•
o° S *
21st
St Pond
0 NDHC

/
•
•


WB
Reach A
(ref)
) • Detect HQ^


«,
*-«.
y?.
o oo
WB
Reach B
•HQ=1


•
-
*&

WB
Reach C



•

*«/
0
WB
Reach D
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st Street
Pond
0
0
11
9
11
C
Weber
River -
Reach A
5
0
0
5
5
A
Weber
River -
Reach B
6
0
15
17
21
A
Weber
River -
Reach C
3
0
11
14
14
A
Weber
River -
Reach D
2
0
12
13
14
C
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Terrestrial Risk_Soil: Graph
1/13/2003

-------
                                                  Appendix E-7
                        Terrestrial Receptor HQs for Direct Contact with Surface Soil

                       Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                                   SELENIUM

1 Tn-Wll -,



0>
^ 1E+00 -

§

o
1 1E'01 "
M
mno



0
0


f

*

oO(9



21st
St Pond
0 NDHC








o
0 o



WB
Reach A
(ref)
) • Detect HQ^


OD OD



V


°s %



WB
Reach B
•HQ=1


000

^
*u w



(g> Oo



WB
Reach C










(®9<8



WB
Reach D
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st Street
Pond
0
2
9
5
11
C
Weber
River -
Reach A
0
0
2
0
2
C
Weber
River -
Reach B
0
8
11
3
19
B
Weber
River -
Reach C
1
3
10
6
14
B
Weber
River -
Reach D
0
2
12
1
14
C
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Terrestrial Risk_Soil: Graph
1/13/2003

-------
                                                   Appendix E-7
                        Terrestrial Receptor HQs for Direct Contact with Surface Soil

                        Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                                      SILVER

1 Tn-Wll -,
5ft
0>
5 1E-KX) -
1
"o
O*
1 1E'01 "
mo?




•
0 •
00 d&
21st
St Pond
0 NDHC



O
WB
Reach A
(ref)
) • Detect HQ^


s
o
000
o
WB
Reach B
•HQ=1

.
•
•
rtS>§
WB
Reach C



•
•
0°
WB
Reach D
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st Street
Pond
1
0
10
3
11
C
Weber
River -
Reach A
1
0
1
1
2
A
Weber
River -
Reach B
0
0
19
8
19
C
Weber
River -
Reach C
1
0
13
4
14
C
Weber
River -
Reach D
0
0
14
2
14
C
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Terrestrial Risk_Soil: Graph
1/13/2003

-------
                                                   Appendix E-7
                        Terrestrial Receptor HQs for Direct Contact with Surface Soil

                       Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                                   VANADIUM



S 1E+01 -
5ft
s
•g 1E+00 -
•d
b
§ 1E-01 -
M
mno




•*







21st
St Pond
0 NDHC










WB
Reach A
(ref)
) • Detect HQ^


'•f-







WB
Reach B
•HQ=1


i*
*






WB
Reach C



**•!







WB
Reach D
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st Street
Pond
8
0
0
8
8
A
Weber
River -
Reach A
2
0
0
2
2
A
Weber
River -
Reach B
11
0
0
11
11
A
Weber
River -
Reach C
11
0
0
11
11
A
Weber
River -
Reach D
12
0
0
12
12
A
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Terrestrial Risk_Soil: Graph
1/13/2003

-------
                                                   Appendix E-7
                        Terrestrial Receptor HQs for Direct Contact with Surface Soil

                        Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                                       ZINC


3 1E+01 -
5ft
S
•g 1E+00 -
1
1 1E-01 -
M
mno




•
*•*

21st
St Pond
0 NDHC

•
•


WB
Reach A
(ref)
) • Detect HQ^


«^.


WB
Reach B
•HQ=1


v


WB
Reach C



..^
•••*

WB
Reach D
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st Street
Pond
1
0
1
8
8
C
Weber
River -
Reach A
2
0
0
2
2
A
Weber
River -
Reach B
11
0
0
11
11
A
Weber
River -
Reach C
8
0
3
11
11
A
Weber
River -
Reach D
1
0
5
12
12
A
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Terrestrial Risk_Soil: Graph
1/13/2003

-------
                                                   Appendix E-7
                        Terrestrial Receptor HQs for Direct Contact with Surface Soil

                        Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                                 AROCLOR-1260


3 1E+01 -
5ft
-*rt
S
•g 1E+00 -
1
1 1E-01 -
M
mno



. .
*.
o
0

21st
St Pond
0 NDHC



u

WB
Reach A
(ref)
) • Detect HQ^

.
ooo
o CD

WB
Reach B
•HQ=1


O
O

WB
Reach C



O O
u o

WB
Reach D
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st Street
Pond
5
0
2
5
1
A
Weber
River -
Reach A
0
0
1
0
1
C
Weber
River -
Reach B
1
3
4
1
8
B
Weber
River -
Reach C
0
1
1
0
2
B
Weber
River -
Reach D
0
2
2
0
4
B
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Terrestrial Risk_Soil: Graph
1/13/2003

-------
                                                   Appendix E-7
                        Terrestrial Receptor HQs for Direct Contact with Surface Soil

                        Baseline Ecological Risk Assessment for the Ogden RailyardSite

                                           TETRACHLOROETHENE

1 Tn-Wll -,


0>
^ 1E+00 -

.§
o
1 1E'01 "
M
mo?





0 «f°



o



21st
St Pond
0 NDHC



°°A°


o




WB
Reach A
(ref)
) • Detect HQ^

o
o
ai^S-
•M.SD

°oo




WB
Reach B
•HQ=1



oPa>a
GO O

O




WB
Reach C




O(V
O






WB
Reach D
Statistic
Detect HQs > 1:
NDHQs> 1:
All HQs <1:
Detect Samples:
All Samples:
Risk Category:
21st Street
Pond
0
7
4
0
11
B
Weber
River -
Reach A
0
10
1
0
11
B
Weber
River -
Reach B
0
9
14
0
23
B
Weber
River -
Reach C
0
7
7
0
14
B
Weber
River -
Reach D
1
6
4
2
11
B
                 A = Risk to the sub-population at this location are possible
                 B = Risks to the sub-population at this location cannot be determined
                 C = Risks to the sub-population at this location are expected to be minimal and are assumed to be acceptable
                 na = No data for this chemical in this location
Terrestrial Risk_Soil: Graph
1/13/2003

-------
This page intentionally left blank to facilitate double-sided printing.

-------
                                                            Appendix E-8
                   Summary of Exposure Point Concentrations (EPCs) Used to Evaluate Risks to Wildlife Receptors
Medium
Sediment
Soil
Fish
Type
Inorganics
Pesticides
PAHs
PCBs
SVOCs
Inorganics
Pesticides
PAHs
PCBs
SVOCs
Inorganics
Pesticides
PAHs
PCBs
SVOCs
COPC
Aluminum
Antimony
Arsenic
Barium
Cadmium
Chromium
Copper
Lead
Manganese
Mercury
Selenium
Thallium
Vanadium
Zinc
4,4'-DDE
4,4'-DDD
4,4'-DDT
Benzofalpyrene
Aroclor-1254
Aroclor-1260
bis(2-Ethylhexyl)phthalate
Dibutylphthalate
Aluminum
Antimony
Arsenic
Barium
Cadmium
Chromium
Copper
Lead
Manganese
Mercury
Selenium
Thallium
Vanadium
Zinc
4,4'-DDE
4,4'-DDD
4,4'-DDT
Benzofalpyrene
Aroclor-1254
Aroclor-1260
bis(2-Ethylhexyl)phthalate
Dibutylphthalate
Aluminum
Antimony
Arsenic
Barium
Cadmium
Chromium
Copper
Lead
Manganese
Mercury
Selenium
Thallium
Vanadium
Zinc
4,4'-DDE
4,4'-DDD
4,4'-DDT
Benzofalpyrene
Aroclor-1254
Aroclor-1260
bis(2-Ethylhexyl)phthalate
Dibutylphthalate
Buena
Ventura
Park Pond
1.21E+04
2.80E+00
4.64E+00
4.98E+02

1.54E+01
-
1.20E+02
3.43E+02
3.90E-01
2.20E+00
7.90E-01
2.23E+01
3.64E+02
3.52E-03

2.87E-03
7.80E-02
3.73E-02
3.20E-02
1.82E+00
1.98E-01
-
-
-


-
-


-
-


-
-


-
-



-
-
-


-
-


-
-


-
-


-
-



21st Street
Pond
1.28E+04
1.39E+00
7.83E+00
2.22E+02

1.75E+01
-
3.81E+01
7.01E+02
1.72E-01
4.93E+00
1.70E+00
2.30E+01
1.03E+02
1.56E-02

3.88E-03
2.96E+01
6.61E-02
2.43E-01
1.39E+00
1.02E-01
8.36E+03
9.74E-01
9.16E+00
1.50E+02
1.91E+00
1.46E+01
4.80E+01
2.23E+02
3.00E+02
9.98E-02
l.OOE+00

1.81E+01
9.47E+01
-

1.50E-02
-
-
5.50E-01
1.44E+00
3.17E-01
-
-
-


-
-


-
-


-
5.62E-01
2.34E-03
2.15E-03
-
-
1.54E+00
1.47E+00
1.02E+00
Ogden River
- Reach A

-



-
-


-
-


-
2.44E-03

2.44E-03
2.40E-01
5.00E-02
3.02E-02
1.67E+00
9.05E-01
-
-
-


-
-


-
-


-
-


-
-



-
-
-


-
-


-
-


-
-


-
-



Ogden River
- Reach B
5.61E+03
1.06E+00
4.60E+00
2.04E+02

9.23E+00
-
4.16E+01
5.25E+02
6.60E-02
5.80E+00
8.20E-01
1.27E+01
7.06E+01
3.83E-03

1.08E-02
3.20E-01
2.80E-01
8.40E+00
5.00E-01
7.28E-01
-
-
-


-
-


-
-


-
-


-
-



-
-
-


-
-


-
-


-
-


-
-



Ogden River
- Reach C

-



-
-


-
-


-
1.75E-03

1.22E-02
1.54E-01
3.23E-02
2.30E-01
5.20E-01
2.22E-01
-
-
-


-
-


-
-


-
-


-
-



-
-
-


-
-


-
-


-
-


-
-



Weber Rivei
- Reach A
1.18E+04
3.61E+00
4.00E+00
2.20E+02

9.40E+00
-
5.30E+01
4.40E+02
2.60E-01
4.03E-01
2.81E-01
1.30E+01
1.36E+02
4.58E-03

4.58E-03
2.25E+00
5.70E-02
5.70E-02
3.20E+00
1.51E+00
1.30E+04
7.70E+00
2.20E+01
1.90E+02
7.70E+00
1.90E+01
8.00E+01
9.40E+02
6.30E+02
3.60E+00
2.33E-01

2.20E+01
9.40E+02
-

2.00E-03
-
-
2.55E-02
2.66E-01
9.00E-02
-
-
-


-
-


-
-


-
-


-
-



Weber Rivei
- Reach B
6.80E+03
3.20E+00
4.63E+00
1.10E+02

6.05E+00
-
3.12E+01
3.20E+02
8.06E-02
2.06E+00
2.26E-01
l.OOE+01
1.14E+02
7.03E-03

7.03E-03
4.52E-01
3.99E-02
3.99E-02
5.60E-01
3.57E-01
7.17E+03
1.59E+00
3.73E+00
1.09E+02
1.35E+00
1.01E+01
3.27E+01
1.27E+02
3.09E+02
2.08E-01
l.OOE+00

1.46E+01
1.38E+02
-

4.29E-03
-
-
1.41E-01
3.57E-01
1.80E-01
-
-
-


-
-


-
-


-
-


-
-



Weber Rivei
- Reach C
1.10E+04
4.25E+00
9.20E+00
2.30E+02

9.40E+00
-
4.90E+01
4.50E+02
1.80E-01
2.08E+00
2.03E-01
1.30E+01
2.60E+02
1.46E-02

7.22E-03
1.52E-01
4.20E-02
3.80E-02
1.80E+00
3.37E-01
6.44E+03
5.96E-01
7.40E+00
1.13E+02
1.24E+00
9.25E+00
2.37E+01
1.53E+02
2.74E+02
2.80E-01
1.10E+00

1.40E+01
1.19E+02
-

4.93E-03
-
-
3.15E-02
2.59E-01
2.20E-01
-
-
-


-
-


-
-


-
-


-
-



Weber River
- Reach D
6.60E+03
2.83E+00
5.51E+00
1.31E+02

2.20E+01
-
6.40E+01
3.40E+02
1.20E-01
1.39E+00
2.42E-01
1.36E+01
2.80E+02
4.68E-03

4.68E-03
1.08E-01
3.63E-02
3.63E-02
1.70E+00
1.06E-01
7.51E+03
5.75E+00
4.15E+00
1.39E+02
7.90E-01
1.27E+01
7.30E+01
1.13E+02
2.45E+02
1.61E-01
6.50E-01

1.83E+01
1.56E+02
-

5.00E-03
-
-
3.24E-02
2.30E-01
2.01E-01
-
-
-


-
-


-
-


-
-


-
-



- = Not a COPC or no data available
All units are mg/kg
Wildlife HQ Template.xls: Formatted EPCs
1/14/2003

-------
                                                             Appendix E-8
                                               Estimated Risks to the Belted Kingfisher
                                                                                                          where HO = Dose /TRY
-„.„- , . 21st Street Ogden River Ogden River Ogden River Weber River Weber River Weber River Weber River
Medium Type COPC Ventura ^ _ReachA _ReachB _ j^ _ReachA _ReachB _ Reach _ReachD
Park Pond
Sediment
Soil
Fish
Inorganics
Pesticides
PAHs
PCBs
SVOCs
Inorganics
Pesticides
PAHs
PCBs
SVOCs
Inorganics
Pesticides
PAHs
PCBs
SVOCs
Aluminum
Antimony
Arsenic
Barium
Cadmium
Chromium
Copper
Lead
Manganese
Mercury
Selenium
Thallium
Vanadium
Zinc
4,4'-DDE
4,4'-DDD
4,4'-DDT
Benzofalpyrene
Aroclor-1254
Aroclor-1260
bis(2-Ethylhexyl)phthalate
Dibutylphthalate
Aluminum
Antimony
Arsenic
Barium
Cadmium
Chromium
Copper
Lead
Manganese
Mercury
Selenium
Thallium
Vanadium
Zinc
4,4'-DDE
4,4'-DDD
4,4'-DDT
Benzofalpyrene
Aroclor-1254
Aroclor-1260
bis(2-Ethylhexyl)phthalate
Dibutylphthalate
Aluminum
Antimony
Arsenic
Barium
Cadmium
Chromium
Copper
Lead
Manganese
Mercury
Selenium
Thallium
Vanadium
Zinc
4,4'-DDE
4,4'-DDD
4,4'-DDT
Benzofalpyrene
Aroclor-1254
Aroclor-1260
bis(2-Ethylhexyl)phthalate
Dibutylphthalate
1E-01

2E-03
5E-02
-
2E-02

4E-02
4E-04
5E-02
1E-03
-
2E-03
2E-02
1E-03
-
9E-04

2E-04
2E-04
2E-03
2E-03



-
-


-
-


-
-


-
-


-
-
-



-
-


-
-


-
-


-
-


-
-
-
1E-01

3E-03
2E-02
-
2E-02

1E-02
9E-04
2E-02
3E-03
-
2E-03
6E-03
5E-03
-
1E-03

3E-04
1E-03
2E-03
8E-04



-
-


-
-


-
-


-
-


-
-
-



-
-


-
-


-
-

3E+01
1E-01
1E-01


1E+00
3E-01
1E+00
-

-
-
-


-
-


-
-

7E-04
-
7E-04

2E-04
1E-04
2E-03
7E-03



-
-


-
-


-
-


-
-


-
-
-



-
-


-
-


-
-


-
-


-
-
-
6E-02

2E-03
2E-02
-
1E-02

1E-02
6E-04
9E-03
4E-03
-
1E-03
4E-03
1E-03
-
3E-03

1E-03
4E-02
5E-04
6E-03



-
-


-
-


-
-


-
-


-
-
-



-
-


-
-


-
-


-
-


-
-
-
-

-
-
-


-
-


-
-

5E-04
-
4E-03

2E-04
1E-03
6E-04
2E-03



-
-


-
-


-
-


-
-


-
-
-



-
-


-
-


-
-


-
-


-
-
-
1E-01

1E-03
2E-02
-
1E-02

2E-02
5E-04
3E-02
3E-04
-
1E-03
8E-03
1E-03
-
1E-03

3E-04
3E-04
4E-03
1E-02



-
-


-
-


-
-


-
-


-
-
-



-
-


-
-


-
-


-
-


-
-
-
7E-02

2E-03
1E-02
-
7E-03

1E-02
4E-04
1E-02
1E-03
-
1E-03
7E-03
2E-03
-
2E-03

2E-04
2E-04
6E-04
3E-03



-
-


-
-


-
-


-
-


-
-
-



-
-


-
-


-
-


-
-


-
-
-
1E-01

3E-03
2E-02
-
1E-02

2E-02
6E-04
2E-02
1E-03
-
1E-03
2E-02
4E-03
-
2E-03

2E-04
2E-04
2E-03
3E-03



-
-


-
-


-
-


-
-


-
-
-



-
-


-
-


-
-


-
-


-
-
-
7E-02

2E-03
1E-02
-
3E-02

2E-02
4E-04
2E-02
9E-04
-
1E-03
2E-02
1E-03
-
1E-03

2E-04
2E-04
2E-03
8E-04



-
-


-
-


-
-


-
-


-
-
-



-
-


-
-


-
-


-
-


-
-
-
Wildlife HQ Template: HQs
1/14/2003

-------
                                                             Appendix E-8
                                                Estimated Risks to the American Robin
                                                                                                          where HO = Dose /TRY
-„.„- , . 21st Street Ogden River Ogden River Ogden River Weber River Weber River Weber River Weber River
Medium Type COPC Ventura ^ _ReachA _ReachB _ j^ _ReachA _ReachB _ Reach _ReachD
Park Pond
Sediment
Soil
Fish
Inorganics
Pesticides
PAHs
PCBs
SVOCs
Inorganics
Pesticides
PAHs
PCBs
SVOCs
Inorganics
Pesticides
PAHs
PCBs
SVOCs
Aluminum
Antimony
Arsenic
Barium
Cadmium
Chromium
Copper
Lead
Manganese
Mercury
Selenium
Thallium
Vanadium
Zinc
4,4'-DDE
4,4'-DDD
4,4'-DDT
Benzofalpyrene
Aroclor-1254
Aroclor-1260
bis(2-Ethylhexyl)phthalate
Dibutylphthalate
Aluminum
Antimony
Arsenic
Barium
Cadmium
Chromium
Copper
Lead
Manganese
Mercury
Selenium
Thallium
Vanadium
Zinc
4,4'-DDE
4,4'-DDD
4,4'-DDT
Benzofalpyrene
Aroclor-1254
Aroclor-1260
bis(2-Ethylhexyl)phthalate
Dibutylphthalate
Aluminum
Antimony
Arsenic
Barium
Cadmium
Chromium
Copper
Lead
Manganese
Mercury
Selenium
Thallium
Vanadium
Zinc
4,4'-DDE
4,4'-DDD
4,4'-DDT
Benzofalpyrene
Aroclor-1254
Aroclor-1260
bis(2-Ethylhexyl)phthalate
Dibutylphthalate
-

-
-
-


-
-


-
-


-
-


-
-
-



-
-


-
-


-
-


-
-


-
-
-



-
-


-
-


-
-


-
-


-
-
-
-

-
-
-


-
-


-
-


-
-


-
-
-
5E-01

3E-02
8E-02
5E-03
1E-01
1E-02
9E-01
2E-03
2E-03
3E-02
-
1E-02
3E-02

-
3E-02


1E-02
9E-03
1E-02



-
-


-
-


-
-


-
-


-
-
-
-

-
-
-


-
-


-
-


-
-


-
-
-



-
-


-
-


-
-


-
-


-
-
-



-
-


-
-


-
-


-
-


-
-
-
-

-
-
-


-
-


-
-


-
-


-
-
-



-
-


-
-


-
-


-
-


-
-
-



-
-


-
-


-
-


-
-


-
-
-
-

-
-
-


-
-


-
-


-
-


-
-
-



-
-


-
-


-
-


-
-


-
-
-



-
-


-
-


-
-


-
-


-
-
-
-

-
-
-


-
-


-
-


-
-


-
-
-
8E-01

8E-02
1E-01
2E-02
1E-01
2E-02
4E+00
4E-03
8E-02
6E-03
-
1E-02
3E-01

-
3E-03


7E-04
2E-03
4E-03



-
-


-
-


-
-


-
-


-
-
-
-

-
-
-


-
-


-
-


-
-


-
-
-
4E-01

1E-02
6E-02
4E-03
7E-02
9E-03
5E-01
2E-03
5E-03
3E-02
-
8E-03
5E-02

-
7E-03


4E-03
2E-03
8E-03



-
-


-
-


-
-


-
-


-
-
-
-

-
-
-


-
-


-
-


-
-


-
-
-
4E-01

3E-02
6E-02
3E-03
6E-02
7E-03
6E-01
2E-03
7E-03
3E-02
-
8E-03
4E-02

-
8E-03


8E-04
2E-03
9E-03



-
-


-
-


-
-


-
-


-
-
-
-

-
-
-


-
-


-
-


-
-


-
-
-
5E-01

1E-02
7E-02
2E-03
8E-02
2E-02
5E-01
2E-03
4E-03
2E-02
-
1E-02
5E-02

-
8E-03


8E-04
1E-03
9E-03



-
-


-
-


-
-


-
-


-
-
-
Wildlife HQ Template: HQs
1/14/2003

-------
                                                             Appendix E-8
                                                  Estimated Risks to the Mallard Duck
                                                                                                          where HO = Dose /TRY
-„.„- , . 21st Street Ogden River Ogden River Ogden River Weber River Weber River Weber River Weber River
Medium Type COPC Ventura ^ _ReachA _ReachB _ j^ _ReachA _ReachB _ Reach _ReachD
Park Pond
Sediment
Soil
Fish
Inorganics
Pesticides
PAHs
PCBs
SVOCs
Inorganics
Pesticides
PAHs
PCBs
SVOCs
Inorganics
Pesticides
PAHs
PCBs
SVOCs
Aluminum
Antimony
Arsenic
Barium
Cadmium
Chromium
Copper
Lead
Manganese
Mercury
Selenium
Thallium
Vanadium
Zinc
4,4'-DDE
4,4'-DDD
4,4'-DDT
Benzofalpyrene
Aroclor-1254
Aroclor-1260
bis(2-Ethylhexyl)phthalate
Dibutylphthalate
Aluminum
Antimony
Arsenic
Barium
Cadmium
Chromium
Copper
Lead
Manganese
Mercury
Selenium
Thallium
Vanadium
Zinc
4,4'-DDE
4,4'-DDD
4,4'-DDT
Benzofalpyrene
Aroclor-1254
Aroclor-1260
bis(2-Ethylhexyl)phthalate
Dibutylphthalate
Aluminum
Antimony
Arsenic
Barium
Cadmium
Chromium
Copper
Lead
Manganese
Mercury
Selenium
Thallium
Vanadium
Zinc
4,4'-DDE
4,4'-DDD
4,4'-DDT
Benzofalpyrene
Aroclor-1254
Aroclor-1260
bis(2-Ethylhexyl)phthalate
Dibutylphthalate
7E-02

8E-04
2E-02
-
9E-03

4E-02
2E-04
3E-02
5E-03
-
1E-03
1E-02
5E-04
-
4E-04

9E-05
7E-05
1E-03
8E-04



-
-


-
-


-
-


-
-


-
-
-



-
-


-
-


-
-


-
-


-
-
-
7E-02

1E-03
1E-02
-
1E-02

1E-02
4E-04
1E-02
1E-02
-
1E-03
3E-03
2E-03
-
6E-04

2E-04
6E-04
8E-04
4E-04



-
-


-
-


-
-


-
-


-
-
-



-
-


-
-


-
-


-
-


-
-
-
-

-
-
-


-
-


-
-

4E-04
-
4E-04

1E-04
7E-05
9E-04
3E-03



-
-


-
-


-
-


-
-


-
-
-



-
-


-
-


-
-


-
-


-
-
-
3E-02

8E-04
9E-03
-
6E-03

2E-02
3E-04
4E-03
1E-02
-
7E-04
2E-03
6E-04
-
2E-03

7E-04
2E-02
3E-04
3E-03



-
-


-
-


-
-


-
-


-
-
-



-
-


-
-


-
-


-
-


-
-
-
-

-
-
-


-
-


-
-

3E-04
-
2E-03

8E-05
5E-04
3E-04
8E-04



-
-


-
-


-
-


-
-


-
-
-



-
-


-
-


-
-


-
-


-
-
-
6E-02

7E-04
1E-02
-
6E-03

2E-02
3E-04
2E-02
9E-04
-
7E-04
4E-03
7E-04
-
7E-04

1E-04
1E-04
2E-03
6E-03



-
-


-
-


-
-


-
-


-
-
-



-
-


-
-


-
-


-
-


-
-
-
4E-02

8E-04
5E-03
-
4E-03

1E-02
2E-04
5E-03
5E-03
-
5E-04
3E-03
1E-03
-
1E-03

9E-05
9E-05
3E-04
1E-03



-
-


-
-


-
-


-
-


-
-
-



-
-


-
-


-
-


-
-


-
-
-
6E-02

2E-03
1E-02
-
6E-03

2E-02
3E-04
1E-02
5E-03
-
7E-04
8E-03
2E-03
-
1E-03

1E-04
9E-05
1E-03
1E-03



-
-


-
-


-
-


-
-


-
-
-



-
-


-
-


-
-


-
-


-
-
-
4E-02

9E-04
6E-03
-
1E-02

2E-02
2E-04
8E-03
3E-03
-
7E-04
9E-03
7E-04
-
7E-04

8E-05
8E-05
9E-04
4E-04



-
-


-
-


-
-


-
-


-
-
-



-
-


-
-


-
-


-
-


-
-
-
Wildlife HQ Template: HQs
1/14/2003

-------
                                                             Appendix E-8
                                                 Estimated Risks to the Masked Shrew
                                                                                                         where HO = Dose /TRY
-„.„- , . 21st Street Ogden River Ogden River Ogden River Weber River Weber River Weber River Weber River
Medium Type COPC Ventura ^ _ReachA _ReachB _ j^ _ReachA _ReachB _ Reach _ReachD
Park Pond
Sediment
Soil
Fish
Inorganics
Pesticides
PAHs
PCBs
SVOCs
Inorganics
Pesticides
PAHs
PCBs
SVOCs
Inorganics
Pesticides
PAHs
PCBs
SVOCs
Aluminum
Antimony
Arsenic
Barium
Cadmium
Chromium
Copper
Lead
Manganese
Mercury
Selenium
Thallium
Vanadium
Zinc
4,4'-DDE
4,4'-DDD
4,4'-DDT
Benzofalpyrene
Aroclor-1254
Aroclor-1260
bis(2-Ethylhexyl)phthalate
Dibutylphthalate
Aluminum
Antimony
Arsenic
Barium
Cadmium
Chromium
Copper
Lead
Manganese
Mercury
Selenium
Thallium
Vanadium
Zinc
4,4'-DDE
4,4'-DDD
4,4'-DDT
Benzofalpyrene
Aroclor-1254
Aroclor-1260
bis(2-Ethylhexyl)phthalate
Dibutylphthalate
Aluminum
Antimony
Arsenic
Barium
Cadmium
Chromium
Copper
Lead
Manganese
Mercury
Selenium
Thallium
Vanadium
Zinc
4,4'-DDE
4,4'-DDD
4,4'-DDT
Benzofalpyrene
Aroclor-1254
Aroclor-1260
bis(2-Ethylhexyl)phthalate
Dibutylphthalate
-

-
-
-


-
-


-
-


-
-


-
-
-



-
-


-
-


-
-


-
-


-
-
-



-
-


-
-


-
-


-
-


-
-
-
-

-
-
-


-
-


-
-


-
-


-
-
-
5E+01
9E-02
8E-01
6E-01
4E-02
2E-04
3E-01
6E-01
1E-01
1E-01
6E-02
-
1E+00
3E-02

-
6E-04


2E-01
2E-03
2E-05



-
-


-
-


-
-


-
-


-
-
-
-

-
-
-


-
-


-
-


-
-


-
-
-



-
-


-
-


-
-


-
-


-
-
-



-
-


-
-


-
-


-
-


-
-
-
-

-
-
-


-
-


-
-


-
-


-
-
-



-
-


-
-


-
-


-
-


-
-
-



-
-


-
-


-
-


-
-


-
-
-
-

-
-
-


-
-


-
-


-
-


-
-
-



-
-


-
-


-
-


-
-


-
-
-



-
-


-
-


-
-


-
-


-
-
-
-

-
-
-


-
-


-
-


-
-


-
-
-
8E+01
7E-01
2E+00
8E-01
2E-01
2E-04
4E-01
3E+00
3E-01
4E+00
1E-02
-
1E+00
3E-01

-
8E-05


8E-03
3E-04
6E-06



-
-


-
-


-
-


-
-


-
-
-
-

-
-
-


-
-


-
-


-
-


-
-
-
4E+01
1E-01
3E-01
4E-01
3E-02
1E-04
2E-01
4E-01
1E-01
2E-01
6E-02
-
9E-01
4E-02

-
2E-04


5E-02
4E-04
1E-05



-
-


-
-


-
-


-
-


-
-
-
-

-
-
-


-
-


-
-


-
-


-
-
-
4E+01
5E-02
7E-01
5E-01
3E-02
1E-04
1E-01
4E-01
1E-01
3E-01
7E-02
-
9E-01
4E-02

-
2E-04


1E-02
3E-04
2E-05



-
-


-
-


-
-


-
-


-
-
-
-

-
-
-


-
-


-
-


-
-


-
-
-
4E+01
5E-01
4E-01
6E-01
2E-02
1E-04
4E-01
3E-01
1E-01
2E-01
4E-02
-
1E+00
5E-02

-
2E-04


1E-02
3E-04
1E-05



-
-


-
-


-
-


-
-


-
-
-
Wildlife HQ Template:  HQs
1/14/2003

-------
                                                              Appendix E-8
                                                      Estimated Risks to the Mink
                                                                                                           where HO = Dose /TRY
-„.„- , . 21st Street Ogden River Ogden River Ogden River Weber River Weber River Weber River Weber River
Medium Type COPC Ventura ^ _ReachA _ReachB _ j^ _ReachA _ReachB _ Reach _ReachD
Park Pond
Sediment
Soil
Fish
Inorganics
Pesticides
PAHs
PCBs
SVOCs
Inorganics
Pesticides
PAHs
PCBs
SVOCs
Inorganics
Pesticides
PAHs
PCBs
SVOCs
Aluminum
Antimony
Arsenic
Barium
Cadmium
Chromium
Copper
Lead
Manganese
Mercury
Selenium
Thallium
Vanadium
Zinc
4,4'-DDE
4,4'-DDD
4,4'-DDT
Benzofalpyrene
Aroclor-1254
Aroclor-1260
bis(2-Ethylhexyl)phthalate
Dibutylphthalate
Aluminum
Antimony
Arsenic
Barium
Cadmium
Chromium
Copper
Lead
Manganese
Mercury
Selenium
Thallium
Vanadium
Zinc
4,4'-DDE
4,4'-DDD
4,4'-DDT
Benzofalpyrene
Aroclor-1254
Aroclor-1260
bis(2-Ethylhexyl)phthalate
Dibutylphthalate
Aluminum
Antimony
Arsenic
Barium
Cadmium
Chromium
Copper
Lead
Manganese
Mercury
Selenium
Thallium
Vanadium
Zinc
4,4'-DDE
4,4'-DDD
4,4'-DDT
Benzofalpyrene
Aroclor-1254
Aroclor-1260
bis(2-Ethylhexyl)phthalate
Dibutylphthalate
4E-01
1E-03
2E-03
1E-02
-
1E-06

2E-03
9E-04
8E-03
8E-04
3E-04
8E-03
6E-04
8E-07
-
6E-07
3E-05
5E-05
4E-05
1E-05
8E-08



-
-


-
-


-
-


-
-


-
-
-



-
-


-
-


-
-


-
-


-
-
-
4E-01
7E-04
4E-03
5E-03
-
1E-06

6E-04
2E-03
4E-03
2E-03
6E-04
8E-03
2E-04
3E-06
-
9E-07
1E-02
9E-05
3E-04
1E-05
4E-08



-
-


-
-


-
-


-
-


-
-
-



-
-


-
-


-
-

5E-02
2E-04
2E-04


8E-01
4E-03
2E-04
-

-
-
-


-
-


-
-

5E-07
-
5E-07
8E-05
6E-05
4E-05
1E-05
4E-07



-
-


-
-


-
-


-
-


-
-
-



-
-


-
-


-
-


-
-


-
-
-
2E-01
5E-04
2E-03
5E-03
-
6E-07

7E-04
1E-03
1E-03
2E-03
3E-04
4E-03
1E-04
9E-07
-
2E-06
1E-04
4E-04
1E-02
3E-06
3E-07



-
-


-
-


-
-


-
-


-
-
-



-
-


-
-


-
-


-
-


-
-
-
-

-
-
-


-
-


-
-

4E-07
-
3E-06
5E-05
4E-05
3E-04
4E-06
9E-08



-
-


-
-


-
-


-
-


-
-
-



-
-


-
-


-
-


-
-


-
-
-
4E-01
2E-03
2E-03
5E-03
-
6E-07

8E-04
1E-03
5E-03
1E-04
1E-04
5E-03
2E-04
1E-06
-
1E-06
8E-04
7E-05
7E-05
2E-05
6E-07



-
-


-
-


-
-


-
-


-
-
-



-
-


-
-


-
-


-
-


-
-
-
2E-01
2E-03
2E-03
2E-03
-
4E-07

5E-04
8E-04
2E-03
7E-04
8E-05
4E-03
2E-04
2E-06
-
2E-06
2E-04
5E-05
5E-05
4E-06
1E-07



-
-


-
-


-
-


-
-


-
-
-



-
-


-
-


-
-


-
-


-
-
-
4E-01
2E-03
5E-03
5E-03
-
6E-07

8E-04
1E-03
4E-03
7E-04
7E-05
5E-03
5E-04
3E-06
-
2E-06
5E-05
5E-05
5E-05
1E-05
1E-07



-
-


-
-


-
-


-
-


-
-
-



-
-


-
-


-
-


-
-


-
-
-
2E-01
1E-03
3E-03
3E-03
-
1E-06

1E-03
9E-04
2E-03
5E-04
8E-05
5E-03
5E-04
1E-06
-
1E-06
4E-05
5E-05
5E-05
1E-05
4E-08



-
-


-
-


-
-


-
-


-
-
-



-
-


-
-


-
-


-
-


-
-
-
Wildlife HQ Template: HQs
1/14/2003

-------