United States Great Lakes National Program Office EPA-905-R-02-003
Environmental Protection 77 West Jackson Boulevard June 2002
Agency Chicago, Illinois 60604
SEPA Appendix B
Screening Level Human
Health Risk Assessment for
the Lower Ottawa River, Ohio
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Screening-Level Human Health
Risk Assessment
for the Lower Ottawa River, Ohio
FINAL REPORT
Prepared By:
Intertox, Inc.
2819 Elliot Avenue, Suite 201
Seattle, WA 98121
(206) 443-2115
Principal Author:
Gretchen Bruce
October 2001
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Screening-Level Human Health Risk Assessment
for the Lower Ottawa River, Ohio
Prepared for:
Limno-tech, Inc.
October 2001
Prepared by:
Intertox, Inc.
2819 Elliott Avenue
Suite 201
Seattle, WA 98121
206.443.2115 phone
206.443.2117 facsimile
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Executive Summary
This document presents the screening-level Human Health Risk Assessment (HHRA) for the
Lower Ottawa River, Ohio. This HHRA quantitatively evaluates both cancer risks and non-
cancer health hazards from exposure to contaminants in the Lower Ottawa River, extending from
the river's mouth on Maumee Bay in Lake Erie to River Mile (RM 8.8). The HHRA evaluates
risks to children and adults in the absence of any remedial action and institutional controls, such
as the fish consumption advisories currently in place. The HHRA uses the most recent U.S. EPA
policy and guidance as well as additional site data and analyses.
The HHRA shows that cancer risks and non-cancer health hazards to the reasonable maximum
exposure (RME) individual associated with consumption of fish from the Lower Ottawa River
are above levels of concern. Consistent with U.S. EPA risk assessment guidance, the RME
scenario is defined as the highest exposure that could reasonably be expected to occur for a given
exposure pathway at a site. The HHRA indicates that fish consumption is the primary
pathway for contaminant exposure in the Lower Ottawa River and for potential adverse
health effects, and that PCBs are the primary contaminant of concern in fish. Estimated
cancer risks and non-cancer health hazards from other chemicals and exposure pathways
are generally within U.S. EPA's range of acceptable risk levels.
This HHRA was conducted using data on contaminant concentrations measured in fish,
sediments, and river water collected in the Lower Ottawa River by the Ohio Environmental
Protection Agency (OEPA) in 1998 through 2000. Separate evaluations were conducted for each
of four river segments, established based on flow characteristics and river use patterns. These
segments were Segment 1, extending from the river mouth to River Mile (RM) 3.2; Segment 2,
extending from RM 3.2 to RM 4.9; Segment 3, extending from RM 4.9 to 6.5; and Segment 4,
extending from RM 6.5 to 8.8. Adults and children ranging in age from 1 to 14 years were
identified as populations possibly exposed to contaminants in the Lower Ottawa River due to
fishing and recreational activities (e.g., swimming, wading). Two separate populations were
evaluated: people who fish in the river (anglers) and consume the fish that they catch, and
people who recreate in the river. The exposure pathways identified in the HHRA for people who
fish in the river are consumption offish and dermal contact with river water. The exposure
pathways identified for recreatore are incidental ingestion of and dermal contact with sediments
and river water. For these exposure pathways, average (central tendency) and RME estimates of
exposure and cancer risks and non-cancer health hazards were calculated using individual point
estimates for each exposure facto* used in the calculations.
For fish fomanmptirm, central tendency and RME exposure factors were developed for each of
the parameters needed to calculate the cancer risks and non-cancer health hazards. Based on
1988 and 1991-1992 surveys offish consumption by licensed anglers in Michigan (West et al,
1992; 1993), the central tendency fish ingestion rate was determined to be approximately 10
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half-pound meals per year and the RME fish ingestion rate was determined to be 60 half-pound
meals per year. No losses of contaminant due to cooking were assumed.
For direct contact exposures with river water and sediment during recreational activities, the
RME estimate of time spent in recreational activities was 24 days per year for 3 hours per event
for an adult and 48 days per year for 3 hours per event for a child. For the central tendency
scenario, adults were assumed to engage in recreational activities for 16 days per year for 1 hour
per event, and children were assumed to engage in recreational activities for 30 days per year for
1 hour per event.
The exposure duration was assumed to be 9 years for the central tendency exposure estimate and
30 years for the RME estimate. Standard U.S. EPA default factors were used for all other
parameters, including body weight.
Both cancer risks and non-cancer health hazards to an adult and child anglers and recreators were
calculated. Cancer risks were evaluated as the excess lifetime risk of developing cancer due to
exposure to the chemicals being evaluated and non-cancer hazards were evaluated for other
health effects, which include reproductive impairment, developmental disorders, and disruption
of specific organ functions. The cancer risk is expressed as a probability and is based on the
cancer potency of the chemical, known as a cancer slope factor or SF. The non-cancer hazard is
expressed as the ratio of the chemical intake (dose) to a Reference Dose, or RfD. The chronic
RfD represents an estimate (with uncertainty spanning perhaps an order of magnitude or greater)
of a daily exposure level for the human population, including sensitive populations (e.g.,
children), that is likely to be without an appreciable risk of deleterious effects during a lifetime.
Chemical exposures exceeding the RfD do not necessarily mean that adverse effects will occur,
however. U.S. EPA's Integrated Risk Information System, known as IRIS, provided the primary
database of chemical-specific toxicity information used in this HHRA. The most current SFs
and RfDs for the chemicals of interest evaluated in this assessment were used in calculating
cancer risks and non-cancer hazards in the HHRA.
For known or suspected carcinogens, U.S. EPA under federal Superfund law generally considers
upper-bound excess lifetime cancer risks to an RME individual of 10"6 to 10"4 (1 in 1,000,000 to
1 in 10,000) to be acceptable. The lxl 0"6 (1 in a million) risk level is typically considered the
"point of departure" for establishing remediation goals at contaminated sites. Risks less than 1 in
a 1,000,000 are nearly always considered acceptable, whereas risks greater than 1 in 10,000 are
typically considered unacceptable. To elaborate cm the meaning of these risk designations, the
average U.S. citizen has an approximately 1 in 4 chance (0.2S0000) of being diagnosed with
cancer at some point in his or her lifetime. Thus, if the result of this cancer risk analysis
estimated a 1 in a million (0.000001, also written as 1E*06 or lxlO"6) excess cancer risk, the total
cancer risk to an exposed individual would be 0.250001. Or, conversely, if the estimated excess
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cancer risk is 1 in a million, then in an exposed population of one million people, an upperbound
of one additional cancer due to the exposure would be expected.
In this HHRA, exposures to RME anglers who consume fish caught from the Lower Ottawa
River result in the highest estimated cancer risks. Cancer risks are essentially the same,
regardless of which river segment fish are caught from, ranging from approximately 2 x 10"3 (2
additional cancers in a population of one thousand) in Segments 2 and 4 to 3 * 10'3 (3 additional
cancers in a population of one thousand) in Segments I and 3. Central tendency estimates of
exposure to people who fish in the river result in excess upper-bound lifetime cancer risks of
approximately 2 x 10"4 to 4 x 10'4(2 to 4 additional cancers in a population of ten thousand).
Estimated cancer risks for the RME recreator scenario range from 1 * 10"4 in Segments 1 and 3
to 5 x 10'5 in Segment 2.
Cancer Risk Summary
Pathway
RME
Risk
Central Tendency
Risk
Consumption of Fish and
Exposure to Water while
Fishing
Segment 1: 3* 10'3 (3 in 1,000)
Segment 2: 2 * 10"3 (2 in 1,000)
Segment 3: 3 x 10"3 (3 in 1,000)
Segment 4: 2* 10"3 (2 in 1,000)
Segment 1: 4 x 10"* (4 in 10,000)
Segment 2: 2 x 10"4 (2 in 10,000)
Segment 3: 3 * 10"4 (3 in 10,000)
Segment 4: 2 x 10"" (2 in 10,000)
Recreational Exposure to
Sediment and Water
Segment 1 * lir4 (i in io.OOO)
Segment 2: 5 * 10'5 (5 in 100,000)
Segment 3: 1 * 10^ (l in 10,000)
Segment 4: 6 * 10's (6 in 100,000)
Segment 1: 2 * i6"5 (2 in 100,666)
Segment 2: 8* 10"4 (8 in 1,000,000)
Segment 3: 2* 10"5 (2 in 100,000)
Segment 4: 1 x 10'5 (1 in 100,000)
For anglers, estimated cancer risks are dominated by exposure to PCBs in fish, which contributes
about 88 to 96% of the estimated risks for this population. For the recreators, estimated cancer
risks are dominated by surface water contact with N-nitroso-di-n-propylamine (12-39% of the
estimated risk) and pentachlorophenol (18-50% of the estimated risk), and sediment contact with
PAHs (2-26% of the estimated risk), N-nitroso-di-n-propylamine (1-17% of the estimated risk),
and PCBs (<1-20% of the estimated risk). However, many of the chemicals of interest in surface
water and were detected infrequently. When a chemical of interest was not detected, it
was assumed to be present at a concentration equal to one half of its analytical detection limit, in
a manner consistent with U.S. EPA's guidance for screening level risk assessments. Since many
chorals were detected infrequently and the detection limits for many of these chemicals
actually exceed concentrations that would be associated with a de minimis cancer risk level (i.e.,
lxlO'6), a substantial fraction of the estimated risks to recreators is based on concentrations
estimated from one-half of these chemicals' limits of detection. Further, several other chemicals,
particularly in surface water, were not detected but had limits of detection that exceeded risk-
based concentrations corresponding to the de minimis risk level. Therefore, significant
uncertainties about the estimated risks associated with exposure to sediments and surface water
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in the Lower Ottawa River exist, due to uncertainties about the actual concentrations of
chemicals in sediment and surface water.
The evaluation of non-cancer health effects involved comparing the average daily exposure
levels (dose) to the RfDs for noi>cancer effects, to determine whether the estimated exposures
exceed the RfD. For each scenario, the ratio of the site-specific calculated dose to the RfD for
each exposure pathway is summed to calculate the Hazard Index (HI) for the exposed individual.
An HI of one (1) is the reference level established by U.S. EPA above which concerns about
non-cancer health effects should be evaluated further.
Exposure to RME anglers results in the highest estimate of non-cancer health hazards (ranging,
for a child, from an HI of 85 for Segment 2 to 180 for Segment 1). Exposure to anglers for the
average (central tendency) scenario results in His ranging from 15 for Segments 2 and 4 to 31 for
Segment 1. Total His for the recreational exposure pathways are all less than one for all four
river segments. For anglers, estimated non-cancer hazards are dominated by exposure to PCBs
in fish, which contributes about 99% of the estimated non-cancer hazards for this population.
Noncancer Hazard Summary
Pathway
RME
Hazard Index
Central Tendency
Hazard Index
Consumption of Fish and
Exposure to Water while
Fishing
Segment 1: 180 (child), 170 (adult)
Segment 2: 85 (child), 83 (adult)
Segment 3: 180 (child), 170 (adult)
Segment 4: 89 (child), 87 (adult)
Segment 1: 31 (child and adult)
Segment 2: IS (child and adult)
Segment 3: 30 (child and adult)
Segment 4: 15 (child and adult)
Recreational Exposure to
Sediment and Water
Segment 1: 0.32 (child), 0.044 (adult)
Segment 2: 0.22 (child), 0.029 (adult)
Segment 3: 0.58 (child), 0.067 (adult)
Segment 4: 0.21 (child), 0.026 (adult)
Segment 1: 0.094 (child), 0.021 (adult)
Segment 2: 0.081 (child), 0.014 (adult)
Segment 3: 0.25 (child), 0.037 (adult)
Segment 4: 0.077 (child), 0.013 (adult)
Noncancer hazards from consumption of PCBs in fish were also evaluated based on fish
consumption advisory categories established by the Great Lakes Sport Fish Advisory Task
Force. Estimated hazards for all consumption categories, including limited consumption of only
one meal every two months, exceeded U.S. EPA's level of concern of 1.0.
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Noncancer Hazards for PCBs Calculated for
Great Lakes Sport Fish Advisory Task Force Consumption Categories
Category 1
Hazard Index
Category 1 (Unrestricted consumption)
Segment 1: 240
Segment 2: 110
Segment 3: 230
Segment 4: 120
Category 3 {One meal per month)
Category 1 (One meal per week)
Segment I: 67
Segment 2: 32
Segment 3: 66
Segment 4: 33
Segment 1: 13
Segment 2: 6.1
Segment 3: 12
Segment 4: 6.3
Category 4 (One meal every two months)
Segment 1: 6.2
Segment 2: 3.0
Segment 3: 6.1
Segment 4: 3.1
Uncertainties are inherent in the risk assessment process and may exist in contaminant
concentrations in environmental media, derivation of toxicity values, and estimating potential
exposures. However, due to the conservatism in the U.S. EPA risk assessment process, the
combined uncertainties are likely to overestimate, rather than underestimate, risks for the Lower
Ottawa River.
Major Findings of the Lower Ottawa River HHRA
The Lower Ottawa River HHRA evaluated both cancer risks and non-cancer health hazards to
children, adolescents, and adults posed by contaminants in the Lower Ottawa River. The highest
risks are estimated for PCBs in fish. U.S. EPA has classified PCBs as probable human
carcinogens and known animal carcinogens. Other long-term adverse health effects of PCBs
observed in laboratory animals include a reduced ability to fight infections, low birth weights,
and learning problems. The major findings of the report are:
Fitting fish is the primary pathway for humans to be exposed to contaminants in the
Lower Ottawa River.
Under the RME scenario for eating fish, the calculated cancer risk is approximately 2 to 3
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For non-cancer health effects, the RME scenario for eating fish from the Lower Ottawa
River results in a level of exposure to PCBs that is approximately 180 times higher than
U.S. EPA's reference level (Hazard Index) of one for Segments 1 and 3, and
approximately 85 times higher for Segments 2 and 4.
For the fish consumption pathway, central tendency cancer risks for all four river
segments exceed U.S. EPA's acceptable risk range of 10"6 to 10"4, and non-cancer hazards
under central tendency assumptions for all four river segments are also above the U.S.
EPA's reference level (Hazard Index) of one.
Under baseline conditions, the estimated RME cancer risk associated with exposure to
contaminants in the Lower Ottawa River in Segments 1 and 3, through skin contact with
and incidental ingestion of sediments and river water, is 1 in 10,000. This risk is at the
upperbound of U.S. EPA's generally acceptable levels of concern for cancer for a 30 year
exposure period. RME risks for the other two segments are within U.S. EPA's
acceptable risk range of 10"6 to 10'4. Central tendency risks are within U.S. EPA's
acceptable risk range of 10'6 to 10"4 for all four river segments. Non-cancer health effects
to recreators are below U.S. EPA's levels of concern.
Many of the chemicals of interest in surface water and sediment were detected
infrequently, and a substantial fraction of the estimated risks to recreators is based on
concentrations estimated from one-half of these chemicals' limits of detection. Further,
several chemicals in surface water, in particular, were not detected but had limits of
detection that exceeded risk-based concentrations. Therefore, significant uncertainties
about the estimated risks associated with exposure to sediments and surface water in the
Lower Ottawa River exist, due to uncertainties about the actual concentrations of
chemicals in sediment and surface water.
Surface water COIs were detected at only five of the 21 surface water sample locations
at RM 0.5,2.5, and 4.8. The highest estimated cancer risks for surface water for the
recreator scenario were associated with samples collected at RM 0.5. Eight of the surface
water COIs (2-chlorophenol, 4,4'-DDT, aldrin, dieldrin, gamma-BHC, heptachlor, N-
nitroso-di-n-propylamine, and pentachlorophenol) were only detected in surface water at
this location and of these, seven were also detected at their highest sediment
concentrations at this location. Consequently, RM 0.5 may represent a hot spot for these
compounds.
The highest estimated cancer risks for sediment for the recreator scenario were associated
with a sample collected at RM 5.86 (in Segment 3), in the vicinity of the mouth of the
former Unnamed Tributary. The highest PCB sediment concentrations were measured at
this location (156 mg/kg total PCBs in the 0"-24" layer). Examination of data for nearby
locations suggests that these elevated PCB concettrations are extremely localized, since
total PCB concentrations at nearby locations are much lower. Surface sediment PCB
concentrations at other locations in the river are considerably lower (less than 10 mg/kg,
and in most cases less than 5 mg/kg).
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TABLE OF CONTENTS
1.0 INTRODUCTION 16
1.1 Objectives of the HHRA 16
1.2 Document Overview 17
2.0 DATA EVALUATION AND HAZARD CHARACTERIZATION 18
2.1 Site Description and Identification of Areas of Concern 18
2.2 Identification of Media of Concern 19
2.3 Data Evaluation 19
2.3.1 Data Sets Included in the HHRA 19
2.3.2 Initial Data Review 21
2.4 Identification of Chemicals of Interest 21
2.5 Chemicals of Interest Selection Uncertainties 24
3.0 EXPOSURE ASSESSMENT 32
3.1 Exposure Populations and Scenarios 32
3.2 Exposure Pathways 33
3.3 Quantification of Exposure 34
3.3.1 Exposure Equations 34
3.3.2 Exposure Point Concentrations 36
3.3.3 Exposure Parameters 38
3.3.4 Chemical-Specific Uptake Factors 41
3.4 Derivation of Dose Estimates 41
3.5 Evaluation of Fish Consumption Advisory Categories 41
3.6 Evaluation of Exposure to Lead 42
3.7 Exposure Assessment Uncertainties 42
4.0 TOXICITY ASSESSMENT 52
4.1 Types of Toxicity Criteria 52
4.2 Sources of Toxicity Criteria 53
4.3 Evaluation of PCB Toxicity 54
4.4 Evaluation of Carcinogenic Polycyclic Aromatic Hydrocarbons 55
4.5 Evaluation of Arsenic Toxicity through Fish Consumption 56
4.6 Route-to-Route Extrapolation of Reference Doses and Slope Factors 56
4.7 Evaluation of Lead Toxicity 57
4.8 Toxicity Assessment Uncertainties 57
5.0 RISK CHARACTERIZATION. 60
5.1 Noncarcinogenic Effects 60
5.2 Cancer Risks 60
5.3 Results 61
5.3.1 Results for the Recreator Scenarios.. 62
5.3.2 Results for the Angler/ Fish Consumer Scenarios 62
5.3.3 Results of the Fish Consumption Advisory Evaluation.... 63
5.4 Characterization of "Hot Spots" 64
6.0 CONCLUSIONS AND RECOMMENDATIONS.... Ill
7.0 REFERENCES ..113
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APPENDIX A: Selection of Chemicals of Interest for the Lower Ottawa River Human Health Risk
Assessment
APPENDIX B: Exposure Point Concentration Calculations for the Lower Ottawa River Human
Health Risk Assessment
APPENDIX C: Exposure Parameters Used in the Lower Ottawa River Human Health Risk
Assessment
APPENDIX D: Risk Calculations and Pathway-Specific Risk Summaries, Lower Ottawa River
Human Health Risk Assessment
APPENDIX E: PCB Hazard Calculations for Fish Consumption Categories, Lower Ottawa River
Human Health Risk Assessment
List of Tables
Table 2-1: Summary of Data Used in the Human Health Risk Assessment for the Lower
Ottawa River
Table 2-2: Chemicals of Interest Evaluated in the Lower Ottawa River Human Health Risk
Assessment
Table 2-3: Summary of Analytes with Limits of Detection that Exceeded Screening Levels for
at Least One Sample, Lower Ottawa River Human Health Risk Assessment
Table 2-4: Chemicals Never Detected in Surface Water with Maximum Limits of Detection
Greater Than Ten Times Risk-Based Screening Values, Lower Ottawa River
Human Health Risk Assessment
Table 2-5: Chemicals Never Detected in Fish with Maximum Limits of Detection Greater
Than Ten Times Risk-Based Screening Values, Lower Ottawa River Human Health
Risk Assessment
Table 3-1: COIs in Surface Water with Maximum Limits of Detection Greater than Ten Times
Risk-Based Screening Values, Lower Ottawa River Human Health Risk
Assessment
Table 3-2: Surface Sediment Exposure Point Concentration Summary, Lower Ottawa River
Human Health Risk Assessment
Table 3-3: Surface Water Exposure Point Concentration Summary, Lower Ottawa River
Human Health Risk Assessment
Table 3-4: Fish Exposure Point Concentration Summary, Lower Ottawa River Human Health
Risk Assessment
Table 3-5: Fish Tissue Concentrations Estimated from Surface Water Concentrations and
Bioaccumulation Factors, Lower Ottawa River Human Health Risk Assessment
Table3-6: Chemical-Specific Uptake Factors Used in the Lower Ottawa River Human Health
Risk Assessment
Table 4-1: Toxicity Criteria Used in die Lower Ottawa River Human Health Risk Assessment
Table 5-1: Summary of Cancer Risks and Noncancer Hazards, Lower Ottawa River Human
Health Risk Assessment
Table 5-2: Summary of Chemical- and Media- Specific Cancer Risks, Reasonable Maximum
Exposure Scenario, Lower Ottawa River Human Health Risk Assessment
Table 5-3: Summary of Chemical- and Media- Specific Cancer Risks, Central Tendency
Exposure Scenario, Lower Ottawa River Human Health Risk Assessment
Table 5-4: Summary of Chemical- and Media- Specific Noncancer Hazards, Reasonable
Maximum Exposure Scenario, Lower Ottawa River Human Health Risk
Assessment
Table 5-5: Summary of Chemical- and Media- Specific Noncancer Hazards, Central Tendency
Exposure Scenario, Lower Ottawa River Human Health Risk Assessment
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Table 5-6: Summary of Cancer Risks, RME Scenario, Lower Ottawa River Human Health
Risk Assessment
Table 5-7: Summary of Cancer Risks, CT Scenario, Lower Ottawa River Human Health Risk
Assessment
Table 5-8: Summary of Noncancer Hazards, RME Scenario, Lower Ottawa River Human
Health Risk Assessment
Table 5-9: Summary of Noncancer Hazards, CT Scenario, Lower Ottawa River Human Health
Risk Assessment
Table 5-10: IEUBK Model Output, Lower Ottawa River Human Health Risk Assessment
Table 5-11: Summary of Cancer Risks for Consumption of Fish Containing COIs at
Concentrations Estimated from BAFs, RME Angler Scenario, Lower Ottawa River
Human Health Risk Assessment
Table 5-12: Estimated PCB Hazards Assuming Consumption of Fish at Quantities Consistent
with Great Lakes Sport Fish Advisory Consumption Categories, Lower Ottawa
River Human Health Risk Assessment
Table 5-13: Percent of Fish Caught in the Lower Ottawa River with Fish Tissue Concentrations
within Great Lakes Sport Fish Advisory Acceptable Concentration Ranges for Fish
Consumption Categories
Table 5-14: Summary of Sample - Specific Estimated Cancer Risks for Surface Water, Recreator
Scenario (Including Nondetected COIs)
Table 5-15: Summary of Sample - Specific Estimated Cancer Risks for Surface Water, Recreator
Scenario (Including Detected COIs Only)
Table 5-16: Summary of Sample-Specific Estimated Cancer Risks for Sediment, Recreator
Scenario (Including Nondetected COIs)- Sorted by Estimated Cancer Risk
Table 5-17: Summary of Sample-Specific Estimated Cancer Risks for Sediment, Recreator
Scenario (Including Nondetected COIs)- Sorted by River Mile
List of Figures
Figure 2-1: Lower Ottawa River Base Map Showing Reach Designations
Figure 2-2: Selection of Chemicals of Interest for the Lower Ottawa River Human Health Risk
Assessment
Figure 3-1: Lower Ottawa River Human Health Risk Assessment Conceptual Model
Figure 3-2: Comparison of Total PCBs Concentrations in Fish Collected from the Lower
Ottawa River (ppb) vs. Fish Length (inches)
Figure 5-1: Estimated Cancer Risks for the RME Recreator Scenario, Lower Ottawa River
Human Health Risk Assessment
Figure 5-2: Contribution of COIs to Total Estimated Cancer Risks for Contact with Sediment,
RME Recreator Scenario, Lower Ottawa River Human Health Risk Assessment
Figure 5-3: Contribution of COIs to Total Estimated Cancer Risks for Contact with Surface
Water, RME Recreator Scenario, Lower Ottawa River Human Health Risk
Assessment
Figure 5-4: Estimated Cancer Risks for the RME Angler Scenario, Lower Ottawa River Human
Health Risk Assessment
Figure 5-5: Contribution of COIs to Total Estimated Cancer Risks for Fish Consumption, RME
Angler Scenario, Lower Ottawa River Human Health Risk Assessment
FIGURE 5-6: Estimated Noncancer Hazards for the RME Angler Scenario, Lower Ottawa River
Human Health Risk Assessment
Figure 5-7: Total PCBs Concentrations in Fish Collected from the Lower Ottawa River (ppm)
vs. River Mile
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Acronyms
ABS
Absorption Factor
ADD
Average Daily Dose
ATSDR
Agency for Toxic Substances and Disease Registry
BAF
Bioaccumulation Factor
BHC
Benzene Hexachloride
CDC
Centers for Disease Control
COI
Chemical of Interest
CT
Central Tendency
DDD
Dichlorodiphenyldichloroethane
DDE
Dichlorodiphenyldichloroethylene
DDT
Dichlorodiphenyltrichloroethane
EPC
Exposure Point Concentration
ERA
Ecological Risk Assessment
GAF
Gastrointestinal Absorption Factor
HEAST
Health Effects Assessment Summary Tables
HHRA
Human Health Risk Assessment
HI
Hazard Index
HQ
Hazard Quotient
IEUBK
Integrated Exposure-Uptake Biokinetic Model
IRIS
Integrated Risk Information System
LADD
Lifetime Average Daily Dose
LTI
Limno-Tech, Inc.
MCL
Maximum Contaminant Level
MCLG
Maximum Contaminant Level Goal
MRL
Minimal Risk Level
OEPA
Ohio Environmental Protection Agency
PAH
Polycyclic Aromatic Hydrocarbon
PCB
Polychlorinated Biphenyl
PRG
Preliminary Remediation Goal
RAGS
Risk Assessment Guidance for Superfund
RBC
Risk Based Concentration
RfD
Reference Dose
RM
River Mile
RME
Reasonable Maximum Exposure
SF
Slope Factor
svoc
Semi-volatile Organic Compound
TEF
Toxicity Equivalency Factor
TMACOG
Toledo Metropolitan Area Council of Governments
U.S. EPA
United Stales Environmental Protection Agency
U.S. FDA
United States Food and Drug Administration
U.S. FWS
United States Fish and Wildlife Service
UCL
Upper Confidence Limit
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Absorption
Absorption Factor (ABS)
Average Daily Dose (ADD)
Background Level
Bioavailability
Carcinogen
Carcinogenesis
CAS Number
Central Tendency (CT)
CERCLA
Chemical of Interest (C01)
Chronic Exposure
Concentration
Glossary
The process of taking in. Chemicals can be absorbed through the
skin into the bloodstream and then transported to other organs.
Chemicals can also be absorbed into the bloodstream after breathing
or swallowing.
Dermal absorption factor used to estimate the rate at which a
chemical desorbs from an environmental medium, such as soil or
sediment, and absorbs through the skin upon dermal contact.
Exposure expressed as mass of a substance contacted per unit body
weight per unit time, averaged over one year or the duration of
exposure.
A typical or average level of a chemical in the environment.
Background often refers to naturally occurring or uncontaminated
levels.
The fraction of a chemical substance that is absorbed into the
bloodstream and available to cause toxicity.
An agent capable of inducing a cancer response.
The origin or production of cancer, very likely a series of steps. The
carcinogenic event so modifies the genome and/or other molecular
control mechanisms in the target cells that these can give rise to a
population of altered cells.
A unique accession number assigned by the Chemical Abstracts
Service, a division of the American Chemical Society. Other than
being guaranteed unique to a given compound, this number has no
particular meaning. CAS Registry Numbers are assigned to every
uniquely-identifiable substance.
An estimate of the average exposure that is expected to occur at a site.
Usually presented in conjunction with the RME scenario in a U.S.
EPA risk assessment, to provide perspective on the range of
exposures that are likely to occur at a site.
The Comprehensive Environmental Response, Compensation, and
Liability Act of 1980, also known as Superfiind.
Chemicals carried through the risk assessment process. These
chemicals are usually selected from all the chemicals potentially
present at a site, to identify those that are most likely to contribute
significantly to the overall site risk.
Multiple exposures occurring over an extended period, or a significant
fraction of the individual's life-time.
The amount of one substance dissolved or contained in a given
amount of another. For example, seawater contains a higher
concentration of salt than fresh water.
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Glossary (com .)
Conceptual Model An illustration of the problem to be addressed in a risk assessment for
a site. The conceptual model illustrates known and suspected sources
of contamination, types of contaminants and affected media, known
and potential routes of migration, and known or potential human and
environmental receptors.
Critical Effect The first adverse effect, or its known precursor, that occurs to the
most sensitive species as the dose rate of an agent increases.
Dermal Referring to the skin. For example, dermal absorption means
absorption through the skin.
Developmental Toxicity The study of adverse effects on the developing organism (including
death, structural abnormality, altered growth, or functional
deficiency) resulting from exposure prior to conception (in either
parent), during prenatal development, or postnatally up to the time of
sexual maturation.
Dose The amount of a substance taken in by an individual over a period of
time from a variety of sources, including food, water, soil, and air, by
such exposure pathways as ingestion, inhalation, or absorption
through the skin. In this assessment, doses are described as daily
intake rates averaged over periods of one year (for noncarcinogenic
effects) or a lifetime (for cancer), and presented on a per kilogram of
body weight basis.
The additional or extra risk incurred over the lifetime of an individual
by exposure to a toxic substance.
Contact of an organism with a chemical or physical agent. Exposure
is quantified as the amount of the agent available at the exchange
boundaries of the organism (e.g., skin, lungs, gut) and available for
absorption.
Exposure Assessment The determination or estimation (qualitative or quantitative) of the
magnitude, frequency, duration, and route of exposure.
Exposure Pathway The course a chemical or physical agent takes from a source to an
exposed organism. An exposure pathway describes a unique
mechanism by which an individual or population is exposed to
chemicals or physical agents at or originating from a site. Each
exposure pathway includes a source or release from a source, an
exposure point, and an exposure route. If die exposure point differs
from the source, a transport/exposure medium (e.g., air) or media (in
cases of intermedia transfer) also is included.
A location of potential contact between an organism and a chemical
or physical agent.
The concentration term used in the dose equation to estimate
exposure. The concentration term is typically regarded as a
reasonable estimate of the average concentration that is likely to be
contacted over time.
Excess Lifetime Risk
Exposure
Exposure Point
Exposure Point
Concentration (EPC)
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Exposure Route
Gastrointestinal Absorption
Factor (GAF)
Hazard
Hazard Index (HI)
Hazard Quotient (HQ)
Integrated Risk
Information System (IRIS)
Lifetime Average
Daily Dose (LADD)
Lowest Observed Adverse
Effect Level (LOAEL)
Maximum Contaminant
Level (MCL)
Maximum Contaminant
Level Goal
Media
Glossary (cost.)
The way a chemical or physical agent comes in contact with an
organism (e.g., by ingestion, inhalation, dermal contact).
A factor representing the absorption efficiency of a compound
following oral exposure in the toxicity study upon which an oral
toxicity criterion is based. The GAF is used to adjust an oral toxicity
criterion based on an adninistered dose to an absorbed dose value, for
use in evaluating dermal exposures.
A source of risk that does not necessarily imply potential for
occurrence. A hazard produces risk only if an exposure pathway
exists, and if exposures create the possibility of adverse
consequences.
The sum of more than one hazard quotient for multiple substances
and/or multiple exposure pathways. The HI is calculated separately
for chronic, subchronic, and shorter-duration exposures. Used to
evakiate noncancer effects.
The ratio of a single substance exposure level over a specified time
period (e.g., subchronic) to a reference dose for that substance derived
from a similar exposure period. Used to evaluate noncancer effects.
A U.S. EPA database containing verified RfDs and slope factors and
up-to-date health risk and U.S. EPA regulatory information for
numerous chemicals. IRIS is U.S. EPA's preferred source for toxicity
information for Superfund.
Exposure expressed as mass of a substance contacted per unit body
weigfrt per unit time, averaged over a lifetime.
The lowest exposure level at which there are statistically or
biologically significant increases in frequency or severity of adverse
effects between the exposed population and its appropriate control
group.
The maximum level of certain contaminants permitted in drinking
water supplied by a public water system as set by U.S. EPA under the
federal Safe Drinking'Water Act.
The maximum level of a contaminant that is associated with no
adverse health effects from drinking water containing that
contaminant over a lifetime. For chemicals believed to cause cancer,
die MCLGs are set at zero. MCLGs are not enforceable, but are ideal,
health-based goals which are set in the National Primary Drinking
Water Standards developed by U.S. EPA. MCLs are set as close to
MCLGs as possible, considering costs and technology.
Soil, water, air, plants, animals, or any other parts of the environment
that can contain contaminants.
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Glossary (cont.)
Micrograms/Liter (fig/L)
Micrograms/Kilogram (fig/kg) A measure of concentration used in the measurement of solids, such
as soil, sediment, or food. A ng/kg is one one-thousandth of a mg/kg,
and is equivalent to one part per billion.
A measure of concentration used in the measurement of fluids. A
|ig/L is one one-thousandth of a mg/L, and is roughly equivalent to
one part per billioa
Milligrams/Kilogram (mg/kg) A measure of concentration used in the measurement of solids, such
as soil, sediment, or food. Mg/kg is the most common way to present
a concentration in soil and is equivalent to parts per million.
A measure of concentration used in the measurement of fluids. Mg/L
is the most common way to present a concentration in water and is
roughly equivalent to parts per millioa
The highest exposure level at which there are no statistically or
biologically significant increases in the frequency or severity of
adverse effect between the exposed population and its appropriate
control; some effects may be produced at this level, but they are not
considered adverse, nor precursors to adverse effects.
A group of toxic, persistent chemicals used in electrical transformers
and capacitors for insulating purposes and in gas pipeline systems as a
lubricant. The sale and new use of PCBs in the U.S. was banned by
law in 1979.
Milligrams/Liter (mg/L)
No Observed Adverse Effect
Level (NOAEL)
Polychlorinated Biphenyls
(PCBs)
Preliminary Remediation
Goal (PRG)
Reasonable Maximum
Exposure (RME)
Reference Dose (RJD)
Risk
Risk-based concentrations derived by U.S. EPA Region IX for
evaluating contaminated sites. The values are derived from
standardized equations, combining exposure assumptions and U.S.
EPA toxicity criteria, and represent concentrations that are considered
protective of humans, including sensitive groups, over a lifetime of
exposure.
The highest exposure that is reasonably expected to occur at a site.
Per U.S. EPA risk assessment guidance, actions at Superfimd sites
should be based on an estimate of the RME.
A dose rate of a chemical that is not expected to cause adverse health
effects over a lifetime of daily exposure in humans (including
sensitive subgroups). Expressed in units of milligrams per kilogram
of body weight per day (mg/kg-d).
The probability of injury, disease, or death under specific
circumstances. In quantitative terms, risk is expressed in values
ranging from zero (representing the certainty that harm will not occur)
to one (representing the certainty that harm will occur). The
following are examples showing the manner in which risk is
expressed in U.S. EPA risk assessment: E-4 or 10*= a risk of
1/10,000; E-5 or 1(T5= a risk of 1/100,000; E-6 or 10*= a risk of
1/1,000,000. Similarly, 1.3E-3 or 1.3 * 10"3= a risk of 1.3/1,000 =
1/770; 8E-3 or 8 x 1(T= a risk of 8/1,000 = 1/125.
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Glossary (cont.)
Risk Assessment
Slope Factor (SF)
Superfund
Threshold
Toxic Substance
Toxicity Equivalency
Factor (TEF)
Uncertainty Factor
Upper Confidence
Limit (UCL)
Weight of Evidence
Classification
A process to determine the increased risk from exposure to
environmental pollutants together with an estimate of the severity of
impact. Risk assessments use specific chemical information plus
exposure information.
An estimate of the upper-bound probability of an individual
developing cancer as a result of a lifetime of exposure to a particular
level of a potential carcinogen. The units of the slope factor are
usually expressed as l/(mg/kg-day).
Federal authority, established by the Comprehensive Environmental
Response, Compensation, and Liability Act (CERCLA) in 1980,
given to the U.S. EPA to respond directly to releases or threatened
releases of hazardous substances that may endanger health or welfare.
The dose or exposure below which no deleterious effect is expected to
occur.
A chemical or mixture that can cause illness, death, disease, or birth
defects when ingested, inhaled, or absorbed by living organisms. The
quantities and exposures necessary to cause these effects can vary
widely. Many toxic substances are pollutants and contaminants in the
environment.
A generally 10-fold factor used to establish cancer slope factors for
polycyclic aromatic hydrocarbon compounds based on the relative
potency of the compound compared to benzo(a)pyrene.
One of several, generally 10-fold factors, used in operationally
deriving the Reference Dose (RfD) from experimental data UFs are
intended to account for (1) the variation in sensitivity among the
members of the human population; (2) die uncertainty in
extrapolating animal data to the case of humans; (3) the uncertainty in
extrapolating from data obtained in a study that is of less-than-
lifetime exposure; and (4) the uncertainty in using LOAEL data rather
than NOAEL data.
The 95% UCL about die arithmetic mean is typically used as the
concentration term for chemicals of interest in environmental media
in U.S. EPA risk assessments. Because of the uncertainty associated
with estimating the true average concentration at a site, the 95% UCL
of the arithmetic mean is used as an estimate of the average
concentration.
A U.S. EPA classification system for characterizing the extent to
which the available data indicate that an agent is a human carcinogen.
Recently, U.S. EPA has developed weight- of-evidence classification
systems for some other kinds of toxic effects, such as developmental
effects.
$
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Screening-Level Human Health Risk Assessment
for the Lower Ottawa River, Ohio
1.0 Introduction
In January 2000, the Toledo Metropolitan Area Council of Governments (TMACOG)
initiated the Lower Ottawa River Hot Spot Delineation Project to assess the human health
risks posed by existing conditions in the lower 8.8 miles of the Ottawa River (the Lower
Ottawa River), Ohio, and apply the risk estimates in the prioritization of areas for
remediation. The Hot Spot Delineation and Risk Assessment project, conducted by Limno-
Tech, Inc. (LTI), Parametrix Inc., and Intertox Inc. (the Project Team), includes several
components:
Development of a database of existing environmental sampling data collected in the
Lower Ottawa River and identification of data gaps to focus additional sample
collection (led by LTI);
Consolidation of new data from additional sampling of the Lower Ottawa River with
the existing information (led by LTI);
Conduct of an ecological risk assessment (ERA) (led by Parametrix); and
Conduct of a human health risk assessment (HHRA) (led by Intertox).
1.1 Objectives of the HHRA
As initially described in the Proposal for the Ottawa River Environmental "Hot Spot"
Delineation and Risk Assessment, submitted to TMACOG by LTI, Intertox, and Parametrix in
January 2000, and clarified during subsequent meetings between TMACOG and the project
team, the goals of the HHRA are:
To evaluate human health risks associated with exposure to contaminants in the
Ottawa River, under current (baseline) contaminant concentration and exposure
conditions;
To estimate central tendency and upper percentile exposures for the populations of
interest;
To identify the contaminants and pathways that are likely to contribute most
significantly to risks, and characterize risks to populations that are likely to be most
significantly exposed;
To rank river areas of concern based on risk estimates, to assist in the delineation of
hot spots;
To provide information to support the evaluation of remedial alternatives and setting
of remediation priorities; and
To provide information on factors that contribute most significantly to uncertainties in
risk estimates, to focus potential future investigations.
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This screening-level risk assessment provides conservative estimates of risks to potentially
exposed populations assuming that no remediation or institutional controls are applied to the
site. The resulting risk estimates are intended to not underestimate risks, but likely
overestimate risks for most scenarios.
The HHRA was conducted in accordance with current regional and national U.S. EPA and
State of Ohio risk assessment guidance and policy. The principal guidance documents
included the following:
U.S. EPA, 1989. Risk Assessment Guidance for Superfund (RAGS), Volume I.
Human Health Evaluation Manual, Part A. Interim Final. Office of Solid Waste and
Emergency Response, United States Environmental Protection Agency. Washington,
D.C. EPA/540/1 -89/002. December.
U.S. EPA, 1991a. Human Health Evaluation Manual, Supplemental Guidance:
Standard Default Exposure Parameters. Office of Solid Waste and Emergency
Response, United States Environmental Protection Agency. Washington, D.C. June.
U.S. EPA, 1997a. Exposure Factors Handbook. Office of Research and
Development, United States Environmental Protection Agency. Washington, D.C.
EPA/600/P-95/002/Fa. August.
Great Lakes Sport Fish Advisory Task Force, 1993. Protocol for a Uniform Great
Lakes Sports Fish Consumption Advisory. September.
1.2 Document Overview
The subsequent sections of this document are organized as follows:
Data Evaluation and Hazard Characterization (Section 2.0). This section
describes the process used to evaluate the quality of available data for conducting the
HHRA, outlines the process used to select chemicals of interest (COIs) for purposes of
the HHRA, and identifies the COIs.
Exposure Assessment (Section 3.0). This section identifies and characterizes the
populations and pathways for which exposures will be evaluated and outlines the
development of contaminant-specific estimates of intake.
Toxicity Assessment (Section 4.0). This section characterizes the toxicity of die
COIs and identifies quantitative toxicity criteria for each chemical, for use in
evaluating the significance of estimated exposures.
Risk Characterization (Section 5.0). This section integrates die results of the
toxicity and exposure assessments to develop quantitative measures of the potential for
adverse health effects.
Conclusions and Recommendations (Section 6.0). This section summarizes the
results of the risk assessment, and provides recommendations for further evaluation.
References (Section 7.0). This section provides the references used to conduct this
evaluation.
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2.0 Data Evaluation and Hazard Characterization
The objective of the data evaluation and hazard characterization step is to review the quality
of the available data for purposes of conducting the HHRA and to identify chemicals of
interest (COIs) to be evaluated in the HHRA. This section of the HHRA addresses the
following:
Identification of areas and media of concern through which people may be exposed to
contaminants in the Lower Ottawa River;
Identification of available chemical contaminant data for each of the areas and media
of concern, and evaluation of the appropriateness of the data for purposes of
conducting the HHRA; and
Identification of COIs in each area and medium, based on detected concentrations and
comparison to risk-based screening benchmarks and background concentrations.
Results of this step are discussed below.
2.1 Site Description and Identification of Areas of Concern
The Hot Spot Delineation and Risk Assessment project focuses on the current Ottawa River
fish advisory zone in the Ottawa River, extending from the mouth of the Ottawa River on
Lake Erie to river mile (RM) 8.8. This area is also known as the "Lower Ottawa River." The
Lower Ottawa River was divided into several zones or areas of concern for purposes of the
HHRA and the ERA, based on river flow characteristics and use patterns.
From RM 8.8 to 7.0, the Ottawa River is relatively free flowing with unidirectional flow. The
river flows through a transitional zone from RM 7.0 to 2.5. In this zone, flow velocities are
considerably slower and flow reversals occur in some areas. Bathymetry (water depth) data
suggest there are two "basins" in this zone, above and below approximately RM 4.0.
Downstream of RM 2.5, the magnitude of flows and frequencies of flow reversals increase.
In addition to flow information, the State of Ohio Environmental Protection Agency (OEPA)
has characterized the Lower Ottawa River in terms of human use patterns and wildlife
observations, based primarily on field observations (Phil Williams Personal Communication
and field notes, 2001). Based on this information, risks were evaluated for the following four
segments of the Lower Ottawa River (Figure 2-1):
Segment 1: RM 0 to (<) RM 3.2. Compared to the upper areas of the river, the
segment at the mouth of the river (RM 0 to 3.2) is wider, and is characterized by a
high level of recreational use and frequent flow reversals. Residential areas are
present on both sides of the river. In addition, several large storm sewer outlets exist
in this reach of the river. During the summer 2000 sampling events, jet skiing,
boating, fishing, and swimming were observed in this zone. Wildlife, including
waterfowl, was also observed.
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Segment 2: RM 3.2 to (<) RM 4.9. The area from RM 3.2 to 4.9 is a depositional
zone, with large areas of exposed sediments (mud flats) under low water conditions.
Children have been observed walking along the banks and fishing at about RM 3.6.
During the summer 2000 sampling events, wading birds and other wildlife, including
turtles, were observed in this area.
Segment 3: RM 4.9 to (<) RM 6.5. From RM 4.9 to 6.5, signs of human use are
apparent along the riverbank, including dirt bike trails. In addition, there is public
access to the river at the railroad trestle where fishing may occur. This zone is
bordered by landfills but includes some wetland areas where turtles and waterfowl,
including geese, ducks, and wading birds, have been observed.
Segment 4: RM 6.5 to RM 8.8. From RM 6.5 to 8.8, children fishing and wading in
the river have been observed. Field notes from the summer 2000 sampling event
indicate signs of human use near the Highway 475/75 overpass.
For purposes of this risk assessment, the area upstream of RM 8.8 is considered to represent
"background" conditions (i.e., conditions associated with natural or humaivmade but non-site
sources). In this HHRA, maximum-detected chemical concentrations measured in sediment,
surface water, and fish at or around RM 11, if available, were compared to concentrations
detected in these media from RM 0 to 8.8, to provide some perspective on typical contaminant
exposure levels in this geographical area.
2.2 Identification of Media of Concern
The HHRA focuses on the evaluation of human exposures to contaminants in the following
media in the first 8.8 miles of the Lower Ottawa River:
Surface sediments (at a starting depth of 6-inches, extending to no more than 12 inches
below the sediment surface, including sediments in the river channel and along the
shoreline);
Surface water (dissolved and total suspended particulate concentrations); and
Fish (of the size and species likely to be caught by anglers and retained for
consumption).
2.3 Data Evaluation
Data were reviewed for quality by LTI prior to delivery to Intertox for use in the HHRA.
Multiple data sets compiled by LTI and input into the project database were queried for
appropriate data for use in the risk assessment.
2.3.1 Data Sets Included in the HHRA
The following data sets were used in the HHRA:
Samples offish collected in 1999 (Inventory 16; OEPA, 2000). The puipose of this
study was to measure concentrations of polychlorinated biphenyls (PCBs), chlorinated
pesticides, bioaccumulative metals, and chromium in edible portions of fish from the
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lower 12 miles of the Ottawa River for health advisory purposes. A total of forty-two
samples were collected from six stations between RM 0 and 8.8. In addition, five
samples were collected at RM 11.5. Fish samples consisted of skin on and skin off
fillets; some of the samples were composited within species. Fish species included
white crappie, common carp, largemouth bass, bluegill, and others.
Sediment samples collected in 1998 (Inventory 15; OEPA, 1998). The purpose of this
study was to evaluate the distribution of contaminants in the upper zone of the river
(RM 4.9 to 8.8) and in the depositional zone (mouth to RM 4.9). A total of 352
sediment samples were collected and analyzed for metals and semi- volatile organic
compounds (SVOCs), including polycyclic aromatic hydrocarbons (PAHs), pesticides,
and PCB Aroclors. Samples were collected on the right and left sides of the river, and
in the middle of the channel. Samples from this study are primarily composited
surface interval samples (i.e., from sediment cores collected at depths extending from
the surface to some depth below the surface), homogenized prior to laboratory
analysis. Since human exposures to sediment in the Ottawa River are likely to be
primarily to surface sediments, samples collected at a start depth of 0 or 2 inches and
extending to a maximum depth of no more than 24 inches were used for purposes of
this HHRAthis includes 121 samples collected from 121 stations between RM 0 and
RM 8.8. One sample in this depth interval was collected upstream of RM 8.8 (at RM
12.5).
Sediment samples collected in 2000 (Inventory 20; OEPA, 2000). The purpose of this
study was to characterize surface sediment concentrations for purposes of risk
assessment. Eighty-eight surface samples were collected from 23 stations between
RM 0 and 8.8. Samples were analyzed for PCB Aroclors, metals, SVOCs, and
pesticides. No samples were collected upstream of RM 8.8.
Surface water collected in 2000 (Inventory 20; OEPA, 2000). The purpose of this
study was to characterize surface water concentrations for purposes of risk assessment.
Fifty-nine samples were collected from 21 stations between RM 0 and 8.8. Samples
were analyzed for PCB Aroclors, metals, SVOCs, and pesticides. No samples were
collected upstream of RM 8.8.
Data from two additional sampling programs included in the LTI database were not used in
the HHRA. These included data from sediment samples collected in 1994 and 1995
(Inventory 8; OEPA, 1995). These data were not used in the HHRA since more recent
samples were collected at these locations during 1998 and 2000 and analyzed for the same
analytes. In addition, data from the Ohio EPA forage fish tissue analyses in 2000 (Inventory
21) were not used in the HHRA, since these data were collected primarily to characterize
wildlife exposures, and fish were of a smaller size than likely to be caught for human
consumption (/. e., less than 6 inches). Adequate data from fish of the size likely to be caught
and consumed for human consumption were available from Inventory 16.
A summary of the sources of the data used in the HHRA is provided in Table 2-1,
differentiated by media type and river segment.
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2.3.2 Initial Data Review
A]] appropriate data from the above identified sampling programs were evaluated for use in
the HHRA. Data validation results were reviewed to identify data with "R" qualifiers
(indicating rejected results); all data with R qualifiers were excluded from use in the HHRA.
When replicate analyses were conducted on the same sample, only one of the analyses was
used in the HHRA; if the analyte was detected in one or more of these samples, the highest
detected concentration was used. If the analyte was detected in neither sample, the sample
with the lowest limit of detection was used.
One surface sediment analysis for lead was identified as an outlier (p<0.05), using Grubb's
Test for statistical outliers (Taylor, 1982). This samplesample number MENW33 collected
at RM 5.5 from Inventory 20had a reported lead concentration of 26,000 mg/kg (diy
weight). Detected lead concentrations in all other samples used in the risk assessment ranged
from 2.4 to 427 mg/kg (n = 53). Exclusion of this sample from the risk analysis was judged
to be appropriate since all other detections of this analyte, measured in samples collected
throughout the Lower Ottawa River, were significantly lower, and use of this value
significantly skews estimates of the average lead concentration that people are likely to
contact as they move throughout the river.
All other data from the above identified programs were used to identify chemicals of interest
for purposes of the HHRA and establish exposure point concentrations.
2.4 Identification of Chemicals of Interest
The term "chemicals of interest" (COIs) is used to refer to those chemicals detected in site
media that are likely to be of greatest toxicological significance and are selected for analysis
in the HHRA. All analytes detected in sediment, surface water, or fish in the sampling
programs identified in Section 2.3.1 were included in the screening process for identifying
COIs.
The following criteria were used to identify COIs for purposes of conducting the HHRA
(Figure 2-2):
Frequency of detection. All analyses for each area and medium were used to assess
the frequency of detection of a given chemical. If a chemical was never detected, it
was excluded as a CO I. In general, even if a chemical was detected infrequently (e.g.,
at a frequency of less than 5%), it was retained for further screening based on
comparison to background concentrations and risk-based screening concentrations, in
order to avoid exclusion of chemicals that were detected infrequently but at high
concentrations potentially of significance to human health.
Comparison to risk-based screening concentrations. Maximum-detected
concentrations of chemicals in each medium in the Lower Ottawa River wax
compared to risk-based screening concentrations, as described below. If the
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maximum-detected concentration was less than the risk-based screening concentration,
the chemical was excluded as a COl.
Measured concentrations of chemicals of potential concern in the Lower Ottawa River were
compared with measured background concentrations in the same environmental medium and
sampling program, if available. However, no appropriate data were available for surface
water and only one sample was available for sediment. Consequently, background
concentrations in surface water and sediment were not used as a criterion for exclusion of a
chemical as a COI. Fish were collected in Inventory 16 upstream of the study area at RM
11.5. However, since a fish's range is assumed to extend to different parts of the river, these
samples were not considered to be representative of true background conditions and were not
used for comparison to concentrations measured in fish from RM 0 to 8.8.
The maximum-detected chemical concentrations in each medium were compared to risk-
based screening concentrations as follows:
Chemical concentrations were screened using risk-based screening concentrations
[either U.S. EPA Region IX Preliminary Remediation Goals (PRGs) or U.S. EPA
Region III Risk Based Concentrations (RBCs)] corresponding to a lifetime excess
cancer risk of 1 x 10"6 for carcinogens or a hazard quotient (HQ) of 1 for
noncarcinog;ns;
Sediment concentrations were compared to Region 9 PRGs for residential soil;
Surface water concentrations were compared to Region 9 PRGs for drinking water;
and
Fish concentrations were compared to Region 3 PRGs for fish consumption.
The U.S. EPA has developed PRGs and RBCs as risk-based tools for evaluating and cleaning
up contaminated sites. Chemical concentrations above these levels do not automatically
designate a site as "dirty" or trigger a response of action. However, exceeding a PRG
suggests that further evaluation of the potential risks that may be posed by site contaminants
is appropriate (U.S. EPA Region IX, 2000). These values combine current U.S. EPA toxicity
values with "standard" exposure factors to estimate contaminant concentrations in
environmental media (soil, sediment, air, water) that are considered protective of humans,
including sensitive groups, over a lifetime. For carcinogens, the risk-based concentrations are
based on a cancer risk level of 1 x 10"6 (i.e., 1 in 1,000,000), while for noncarcinogens, the
risk-based concentrations are based on a HQ of 1 (see Section S.l and 5.2 for further
discussion of these risk thresholds). Consistent with U.S. EPA risk assessment guidance
(U.S. EPA Region IV, 2000), if the maximum-detected concentration of contaminant in a
given medium exceeded its RBC or PRG, the chemical was retained as a COI.
For some chemicals, no risk-based screening concentrations were available. However, for
several of these chemicals, screening concentrations were available for structurally similar
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chemicals. To avoid exclusion of these chemicals from the HHRA due to lack of toxicity
values, these chemicals were evaluated using these surrogate values. The surrogate values
were as follows:
Alpha-chlordane, Gamma-chlordane, Oxychlordane, cis-Nonachlor, and trans -
Nonachlor were evaluated using values for chlordane (toxicity values for chlordane
are based on a mixture of compounds that include chlordane and nonachlor
congeners);
delta-Benzene hexachloride (delta-BHC) was evaluated using values for alpha-BHC
(structurally similar and most conservative toxicity value of the BHC congeners);
Endosulfan II and Endosulfan sulfate were evaluated using values for Endosulfan
(structurally similar);
Endrin aldehyde and Endrin ketone were evaluated using values for Endrin
(structurally similar);
2-Nitrophenol was evaluated using values for 4-Nitrophenol (structurally similar);
Acenaphthylene, Benzo(g,h,i)perylene, Phenanthrene were evaluated using values for
Pyrene (structurally similar);
4-Chloro-3-methylphenol was evaluated using values for 3-Methylphenol (structurally
similar);
bis(2-Chloroethoxy)methane was evaluated using values for bis(2-Chloroethyl)ether
(structurally similar); and
3-Nitroaniline and 4-Nitroaniline were evaluated using values for 2-Nitroaniline
(structurally similar).
For several chemicals detected in sediment, appropriate surrogate values were not identified;
consequently, these chemicals could not be quantitatively evaluated in the HHRA. These
chemicals are as follows:
2,4,6-Tribromophenol
2-Fluorobiphenyl
2-Fluorophenol
Decachlorobiphenyl
Nitrobenzene-d5
Phenol-d5
Teiphenyl-dl4
T etrachloro-m- xylene
However, it should be noted that exclusion of these chemicals does not mean that they pose
no risks to human health. If toxicity criteria become available for these chemicals in the
future, then further evaluation of their possible human health risks may be warranted.
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Chemical data and COI selection criteria for each medium ot'interest are summarized in
Appendix A. Table 2-2 lists the chemicals identified as COIs for each medium.
2.5 Chemicals of Interest Selection Uncertainties
In some cases, a chemical's detection limit exceeded its risk-based concentration. Chemicals
with detection limits greater than their risk-based concentration in at least one sample are
listed in Table 2-3 for each medium. For surface water, in particular, detection limits for
many of the analytes exceeded risk-based screening levels. Chemicals that were never
detected in surface water, but that had maximum detection limits greater than 10 times their
risk-based screening value are listed in Table 2-4. Chemicals that were never detected in fish,
but that had maximum detection limits greater than 10 times their risk-based screening value
are listed in Table 2-5. The failure to detect compounds that are present above screening
values could underestimate risks. However, for most other analytes in surface water and most
analytes in sediment and fish, chemicals were detected at least once and the detected
concentrations were compared to risk-based concentrations. Thus, it is likely that few, if any.
chemicals present in the Lower Ottawa River that could contribute significantly to risk were
excluded from the HHRA due to lack of detection.
As indicated above, several chemicals detected in surface sediment in the Lower Ottawa
River did not have verified toxicity guideline values. Consequently, these chemicals were not
included in the screening process for chemicals of interest. This could underestimate risks for
exposure to sediment.
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^ Lower Ottawa River Base Map
Showing Reach Designations
ff. 413:2,
*.RoĢdģ A
^'Railroads N
/w State Lin*
r-x-^3 Lowar Ottawa Rivar
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Figure 2-2. Selection of Chemicals of Interest for the
Lower Ottawa River Human Health Risk Assessment
Yes
Chemical Detected at
Least Once?
Yes
Chemical
has a background
concentration?
No
Yes
Does the maximum
concentration exceed the
risk-based concentration?
Yes
Yes
Chemical
has a background
concentration?
Yes
No
No
Yes
Chemical
has a risk-based
.concentration?.
' Does the maximum-^
detected concentration
exceed the background
V concentration? /
Put in chemical
not evaluated
list
Remove from
COI list
Remove from
COI list
Add to CO I list
Remove from
COI list
Add to COI list
List of Analytes for
Each Medium
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Table 2-1. Summary of Data Used in the Human Health Risk Assessment for the Lower Ottawa River
Medium
Segment 1
(RM 0 to <3.2)
Segment 2
(RM 3.2 to <4.9)
Segment 3
(RM 4.9 to <6.5)
Segment 4
(RM 6.5 to 8.8)
Sediment
Surface Water
Fish
Total Number of
Samples
71 stations (one to three
stations every 0.1 mile) with
71 samples (OEPA, 1998)
2 stations (RM 0.S) with 5
samples (OEPA, 2000)
2 stations (RM 1.3) with 10
samples (OEPA, 2000)
2 stations (RM 2) with 4
samples (OEPA, 2000)
3 stations (RM 2.5) with 7
samples (OEPA, 2000)
1 station (RM 2.8) with 2
samples (OEPA, 2000)
4 stations (RM 0.5) with 8
samples (OEPA, 2000)
2 stations (RM 1.3) with 6
samples (OEPA, 2000)
2 stations (RM 2) with 6
samples (OEPA, 2000)
2 stations (RM 2.5) with 6
samples (OEPA, 2000)
1 station (RM 2.8) with 3
samples (OEPA, 2000)
1 station (RM 1.6) with 7
samples (OEPA, 2000)
99 sediment (81 stations)
29 surface wafer (II
stations)
7 fish (1 station)
27 stations (one to three
stations every 0.1 mile) with
27 samples (OEPA, 1998)
2 stations (RM 3.6) with 10
samples (OEPA, 2000)
1 station (RM 4.2) with 3
samples (OEPA, 2000)
1 station (RM 4.8) with 4
samples (OEPA, 2000)
2 stations (RM 3.6) with 6
samples (OEPA, 2000)
1 station (RM 4.2) with 3
samples (OEPA, 2000)
1 station (RM 4.8) with 3
samples (OEPA, 2000)
10 stations (appx every 0.1
mile) with 10 samples (OEPA,
1998)
1 station (RM 5.1) with 2
samples (OEPA, 2000)
1 station (RM 5.5) with 2
samples (OEPA, 2000)
1 station (RM 5.7) with 2
samples (OEPA, 2000)
2 stations (RM 5.8) with 6
samples (OEPA, 2000)
1 station (RM 6.1) with 3
samples (OEPA, 2000)
1 station (RM 5 5) with 3
samples (OBl'A, 2000)
2 station (RM 5.8) with 6
samples (OEPA, 2000)
1 station (RM 6.1) with 3
samples (OEPA, 2000)
1 station (RM 3.4) with 7
samples (OEPA, 2000)
1 station (RM 5.3) with 7
samples (OBl'A, 2000)
1 station (RM 5 .9) with 14
samples (OEPA, 2000)
13 stations (appx every 0.1 to
0.2 miles) with 13 samples
(OEPA. 1998)
1 station (RM 7.2) with 2
samples (OEPA, 2000)
I station (RM 7.6) with 2
samples (OEPA, 2000)
1 station (RM 8.3) with 4
samples (OEPA. 2000)
I station (RM 7.2) with 3
samples (OEl'A. 2(1001
I station (RM K.3) with 3
samples (OEPA. 2U0()j
44 sediment (31 stations)
12 surface water (4
stations)
7 fish (1 station)
25 sediment (16 stations)
!2 surface water (4
stations)
21 fish (2 stationsj
I station (RM 7,2) with 5
samples (OEPA, 2000)
I station (RM X) with 2
samples (OEPA. 20UO)
21 sediment (16 stations)
6 surface water (2 stations)
7 fish (2 stations)
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Table 2-2. Chemicals of Interest Evaluated in
the Lower Ottawa River Human Health Risk Assessment
Fish
Sediment
Surface Water
4,4-DDD (p,p-)
Aldrin
2-Chlorophenol
4,4-DDK (p,p-)
Arsenic
4,4-1)1)1 (p.p-)
4,4'-DDT (p,p-)
Ben/oia (anthracene
Aldrin
Aldrin
Benzo(a)pyrene
Arsenic
alpha-Chlordane
Benzo(h)fluoranthene
Atrazine
Arsenic
Benzo(k)lluoranthene
Dieldnn
Chlordane
D i benz(a. h )a n t hracene
gamma-Benzene hexachloride
Dieldrin
Dieldnn
f leptachlor
gamma-Chlordane
I leptachlor epoxide
Lead
PCB Aroclor 1242
Indeno( 1,2,3-cd)pyrene
N-Nitroso-di-n-propylaraine
PCB Aroclor 1260
Lead
Pentachlorophenol
Total PCBs
N-Nitroso-di-n-propylamine
Thallium
I'CB Aroclor 1016
PCB Aroclor 1242
PCB Aroclor 1248
PCB Aroclor 1254
Total PCBs
Thallium
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Table 2-3. Summary of Analytes With Limits of Detection that Exceeded Screening Levels
for at Least One Sample, Lower Ottawa River Human Health Risk Assessment
Fish Sediment SurfģceWģter
Aldrin
2,2'-Oxybis(l -Chloropropane)*
2,4,6-Trichlorophenol*
Heptachlor
alpha- Benzene hexachloride (a- BUC)*
2-Nitroaniline*
2-Methylnaphthalene*
Heptachlor epoxide*
alpha-Chlotdane
3,3'- Dichlo robcnzidi ne *
2-Nitroaniline*
Hexachlorobenzene *
Arsenic
3-Nitroaniline*
3,3'-Dichlornbenzidine*
1 lexachlorobutadicne *
beta-Benzene hexachloride(b-BllC)'
4,6-Dinitro-2-methylphenol *
3-Nitroaniline*
Hexachloroethane*
ChJordane
4-Nitroamline*
4-Nitroaniline*
Indenc( 1,2,3-cd)pyrene*
cis-Nonachlor*
Acetophenone*
Acetophenone*
I.ead
delta-Benzene hexachloride (d-BHC)*
Arsenic
Aldnn
Magnesium
Dieldrin
Atrazine*
alpha-Benzene hexachloride (a-BHC)*
Manganese
gamma-Benzene hexachloride (g-BHQ*
Benzo(a)anthracene
Aluminum
Mercury
gamma - ('hloidane
Benzo(a)pyrene
Ammonia
Naphthalene*
Heptachlor*
Benzo(b)fluoranthene
Arsenic
Nickel
Heptachlor epoxide*
bis(2-Chloroethoxy) methane*
Atrazine
Nitrobenzene*
Hexachlorobenzene *
bis(2-Chloroethyl) ether*
Barium
N-Nitroso -di-n-propylamine
Oxychlordane*
Dibenz(a,h)anthracene
Benzo(a)anthracene*
N-Nitrosodiphenylamine*
PCB Aroclor 1016ģ
Hexachlorobenzene*
Benzo(a)pyrcne*
PCB Aroclor 1016*
PCB Aroclor 1221*
Hexachlorobutadiene*
Benzo(b)fluoranlhene*
PCB Aroclor 1221*
PCB Aroclor 1232*
Indeno( 1,2,3-cd)pyrene
Benzo(k)f1uoranthene*
PCB Aroclor 1232*
PCB Aroclor 1242
N-Nitroso -di-a-propylamine
beta-Benzene hexachloride (t>BHC)*
PCB Aroclor 1242*
PCB Aroclor 1248*
PCB Aroclor 1016
bis(2-Chk>roethoxy) methane*
PCB Aroclor 1248*
PCB Aroclor 1254*
PCB Aroclor 1221*
bis(2-Chloroethyl) ether*
PCB Aroclor 1254*
PCB Aroclor 1260
PCB Aroclor 1232*
bis(2-Ethylhexyl)phtbalaiĢ
PCB Aroclor 1260*
Selenium
PCB Aroclor 1242
Calcium
Pentachlorophenol
Toxaphene*
PCB Aroclor 1248
Catbazole*
Phosphorus
tran>Nonach]or
PCB Aroclor 1254
Chromium
Potaxsum
PCB Aroclor 1260
Chryjene*
Sodium
Pentachlorophenol
Copper
Thallium
Toxaphene*
delta-Benzene hexachloride (d-BHC)*
Toxaphene*
Dibenz(a,h)anlhrģcene*
Vanadium
Dieldrin
Zinc
* Chemical never detected in sample medium
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Table 2-4. Chemicals Never Detected in Surface Water with Maximum Limits
of Detection Greater than Ten Times Risk-Based Screening Values,
Lower Ottawa River Human Health Risk Assessment
Chemical
Frequency <>f
Detection
Range of
Detection Limits
(MR/L)
U.S. KP.Y Region IX
PRC;
(HR/1-)"
2-Nitroaniline
0/21
25 - 50
2 1
3,3'-Dichlorobenziiiine
0/20
10- 20
0.15
3-Nitroaniline
0/21
25 - 50
2.1
4-Nitroaniline
0/21
25-50
2.1
Acetophenone
0/21
10- 20
0 042
Benzo(a)anthracenu
0/19
10- 20
0.092
Benzo(a)pyrene
0/19
10-20
0.0092
Benzo(b)fluoranthene
0/19
10-20
0.092
Benzo(k)fluoranthene
0/19
10-20
0.92
bis(2-Chloroethoxy) methane
0/21
10-20
0.0098
bis(2-Chloroethyl) ether
0/21
10-20
0.0098
Dibenz(a,h)anthracene
0/19
10-20
0.0092
Hexachlorobeozene
0/21
10-20
0.042
Hexachlorobutadiene
0/21
10-20
0.86
Indeno( 1,2,3-cd)pyrene
0/19
10-20
0.092
PCB Aroclor 1221
0/21
2
0.034
PCB Aroclor 1232
0/21
1
0.034
PCB Aroclor 1242
0/21
1
0.034
PCB Aroclor 1248
0/21
1
0.034
PCB Aroclor 1254
0/21
1
0.034
PCB Aroclor 1260
0/21
1
0.034
Toxaphene
0/21
5
0.061
(a) U.S. EPA Region IX, 2000
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Table 2-5. Chemicals Never Detected in Fish with Maximum Limits
of Detection Greater than Ten Times Risk-Based Screening Values,
Lower Ottawa River Human Health Risk Assessment
Range of
U.S. EPA Region IX
Frequency of
Detection Limits
PRG
Chemical
Detection
(Hg/kg)
("
alpha-Benzene hexachlonde (a -BHC)
0/42
9.35 - 10.4
0.50
ilelta-Benzene hexachlonde (d-BHO)
0/42
9.35 - 10.4
0.50
Heptachlor
0/42
9.35 - 9.87
0.70
Heptachlor epoxide
0/42
9.35- 10.4
0.35
(a) U.S. EPA Region IX, 2000
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3.0 Exposurk Ass essm knt
The goal of the Exposure Assessment is to identify and characterize the populations and
pathways for which exposures will be evaluated and to develop contaminant-specific
estimates of average daily doses. The populations and pathways that were evaluated in the
HHRA and the exposure parameters that were used to estimate doses and risks are described
below. The conceptual site model for the HHRA, showing the populations, scenarios, and
pathways evaluated in this HHRA, is presented in Figure 3-1.
3.1 Exposure Populations and Scenarios
The HHRA focuses on populations likely to be significantly exposed to contaminants in the
Lower Ottawa River through recreational activities and consumption of recreationally caught
fish. The following populations were evaluated:
Adult and child recreators exposed to contaminants through direct contact with
sediments and surface water during such activities as swimming and wading;
Anglers exposed to contaminants through direct contact with surface water while
fishing; and
Consumers of recreationally caught fish, including recreational anglers and members
of their households who consume the fish (adults and children).
The recreator population is considered representative of people who spend time engaged in
activities that result in full immersion in surface water, such as swimming and jet skiing, or
who engage in activities that result in partial submersion, such as wading. These individuals
are also assumed to come in direct contact with sediments. The angler population is
considered representative of people who catch and consume fish from the Lower Ottawa
River; these people are also assumed to contact surface water while fishing, either from a boat
or from the shoreline.
Susceptible populations (e.g., certain ethnic groups, sport anglers, women, children, nursing
infants, the elderly) can be exposed to contaminants via consumption of fish (ATSDR, 2000).
In addition, toxicity data suggest that reproductive function may be disrupted by exposure to
PCBs, one of the primary COIs in this risk assessment, and that neurobehavioral and
developmental deficits have occurred in newborns who had in utero exposure to PCBs and
other persistent organic substances (ATSDR, 2000; U.S. EPA, 1997b). The intake rate used
in this HHRA was based on upperbound and average fish consumption rates for the general
population of licensed anglers. However, since the amount of fish consumed determines the
level of exposure to contaminants in fish, exposures to potentially susceptible populations
including ethnic groups who consume greater amounts of fish, women of childbearing age,
and young children can be estimated by adjusting the intake rate in the exposure equations.
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Two different exposure scenarios were evaluated for these populations: a reasonable
maximum exposure (RME) and a central tendency (CT) scenario. The RME scenario is
defined as the highest exposure that could reasonably be expected to occur for a given
exposure pathway at a site, and accounts for both uncertainty in the contaminant
concentration and variability in the exposure parameters. The CT scenario represents a more
likely or average exposure scenario, and provides perspective on the range of potential
exposure and risk estimates for the populations of interest.
It is possible that a small number of individuals catch and consume fish from the Ottawa
River as a primary dietary food source (i.e., subsistence anglers). However, exposures to
subsistence anglers were not evaluated in this assessment. If fish consumption rates for
subsistence anglers are identified, they can be combined with data on concentrations in fish
from different areas of the river, presented in Section 5.0, to estimate risks to this
subpopulation.
3.2 Exposure Pathways
An exposure pathway describes the course a chemical takes from its source to the exposed
individual. In order for an exposure pathway to be complete, it must have four elements (U.S.
EPA, 1989):
A source and mechanism of chemical release,
A retention or transport medium,
A point of potential human contact with the contaminated medium, and
An exposure route (e.g., ingestion) at the contact point.
Based on these elements, the following exposure pathways to contaminants in the Lower
Ottawa River were identified as potentially complete for the populations of interest and were
quantitatively evaluated in this HHRA:
Incidental ingestion of sediment while swimming or engaged in other recreational
activities such as wading or playing on the shoreline;
Dermal contact with sediment while swimming or engaged in other recreational
activities such as wading or playing on the shoreline;
Incidental ingestion of surface water while swimming or engaged in other recreational
activities such as wading or playing on the shoreline;
Dermal contact with surface water while swimming or engaged in other recreational
activities such as wading or playing on the shoreline, or while fishing from a boat; and
Consumption of recreationally caught fish.
Inhalation of volatilized substance or wind-blown dust was not evaluated, since it is expected
that the contribution of the inhalation pathway is insignificant for the relatively nonvolatile
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chemicals in surface water and sediment in the Lower Ottawa River, and entrainment of dust
particles from contaminated sediment is not expected to be significant
3.3 Quantification of Exposure
The following sections present the equations used to calculate estimated daily doses of each
COls. the methods used to estimate exposure point concentrations, and the parameters used to
estimate dose.
3.3.1 Exposure Equations
The equations used to estimate intake (dose) for each pathway evaluated in the HHRA are
provided below.
Incidental Ingestion of Sediment
Doseing~sed {mg /kg-d) =
sed H^sed * -//' * &0ral * ^
BWxAT
Where:
Concentration of contaminant in surface sediment, mg/kg
Sediment ingestion rate, kg/d
Fraction ingested from a contaminated source, unitless
Relative oral bioavailability, unitless
Exposure frequency, event/yr
Exposure duration, yr
Body weight, kg
Averaging time, d
Dermal Contact with Sediment
Dosederm-sed (mg /kg ~d) =
Csej x SAsej xAFx ABS xCFxEFx ED
BWxAT
Where:
Concentration of contaminant in surface sediment, mg/kg
Skin surface area available for contact with sediment, cm2/event
Sediment to skin adherence factor, mg/cm2
Dermal absorption factor, unitless
Conversion factor, kg/mg
Exposure frequency, event/yr
Exposure duration, yr
Body weight, kg
Averaging time, d
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Incidental Ingestion of Surface Water
Dose,
ing- watt-
,r (mg /kg-d)
_ ^ water
x [Rx ET x EF x EI)
llWx AT
Where:
CSej = Concentration of contaminant in surface water, mg/L
IRyxitet = Incidental surface water ingestion rate, L/hr
ET = Exposure time, hr/event
EF = Exposure frequency, event/yr
ED = Exposure duration, yr
BW = Body weight, kg
AT = Averaging time, d
Dermal Contact with Surface Water
_ , ,, .. CwaterxSAxKpxCFxETxEFxED
(mg/kg-d) = -mz BWx AT
Where:
Cjtd
SA
Kp
CF
ET
EF
ED
BW
AT
Concentration of contaminant in surface water, mg/L
Skin surface area available for contact with surface water, cm2
Chemical-specific dermal permeability constant, cm/hr
Conversion factor, L/cm3
Exposure time, hr/event
Exposure frequency, event/yr
Exposure duration, yr
Body weight, kg
Averaging time, d
Consumption of Fish
Cfyh xIRx f, xCFxEFx ED
DoseflSi, (mg I kg-d) = BWx AT
Where:
Cjed ~
Concentration of contaminant in edible portion of fish, mg/kg
(wet weight)
IR
Fish ingestion rate, g/d
ft
Fraction ingested from a contaminated source, unitless
CF
Conversion factor, kg/g
EF
Exposure frequency, d/yr
ED =
Exposure duration, yr
BW =
Body weight, kg
AT
Averaging time, d
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3.3.2 Exposure Point Concentrations
Samples collected in each river segment were used to calculate the exposure point
concentrations (EPCs) used to estimate intakes of each COl. For each COI in each medium,
separate exposure point concentrations were calculated for each of the four river segments.
The rationale used to group the data outlined in Section 2.3.1 for purposes of calculating
EPCs includes the following considerations:
Concentrations in Sediment. Since people who recreate in the Lower Ottawa River
are most likely to contact contaminants in the upper layers of sediment, surface
sediment samples only were used {i.e., collected at the surface or at a start depth of 0-
or 2-inches extending to no more than 24-inches below the surface).
Concentrations in Surface Water. All surface water data were used.
Concentrations in Fish. Fish data used for this HHRA consisted of samples of "skin
off' fillet and "skin on" fillet or the whole organism. Although U.S. EPA
recommends that fish filets be used to establish chemical concentrations for purposes
of HHRA, since this is the portion consumed by humans (U.S. EPA, 1989),
examination of the fish data collected from the Lower Ottawa River revealed no
apparent pattern in the relative concentrations of contaminants in skin-on filets, skin-
off filets, and whole fish. Further, some populations may consume whole fish, and
some may consume fish with the skin on or off. Consequently, all fish samples
collected within a river segment were averaged for purposes of evaluating risks
associated with fish consumption. No reduction of fish concentration due to cooking
methods was assumed.
For nondetect values, one-half of the method detection limit was used to calculate exposure
point concentrations. However, for several of the COIs in surface water, in particular,
chemicals were detected infrequently but had detection limits that were greater than their risk-
based screening values. Thus, use of one-half the detection limit for these compounds can
result in a large fraction of estimated risks being due to nondetected values. Surface water
COIs with elevated detection limits are shown in Table 3-1. Note that for each of the organic
compounds listed in this table, all reported detected concentrations are estimated values (i.e
"J" qualified).
Per U.S. EPA risk assessment guidance (U.S. EPA, 1989; 1992c), the 95 percent upper
confidence limit (95% UCL) of the arithmetic mean was used as an estimate of the
contaminant's arithmetic average concentration in each river segment for both the RME and
CT scenarios. Use of the 95% UCL provides reasonable confidence that the true average in
each river segment will not be underestimated.
Prior to calculating 95% UCLs, the data were transformed using the natural logarithm
function (i.e., ln(x)) based on the assumption that the environmental contaminant data set is
lognormally distributed . The 95% UCL of the arithmetic mean for a lognormally distributed
data set was calculated using the following equation (U.S. EPA, 1992c):
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sH
UCL = exp( x + O.5.?: + )
\}n-1
Where:
UCL
Upper confidence limit
Mean of the transformed data
Standard deviation of the transformed data
H-statistic
Number of samples
x
s
II
n
Consistent with U.S. EPA guidance, if the calculated 95% UCL exceeded the maximum-
detected concentration in a given medium, the maximum detected concentration was used
(U.S. EPA, 1989; 1992c). Detailed summaries of EPCs are presented in Appendix B. EPCs
used in the HHRA are summarized in Tables 3-2 through 3-4. These tables also compare
EPCs to other criteria, including Ohio and federal surface water quality standards and United
States Food and Drug Administration (U.S. FDA) action levels for fish.
In some cases, chemicals were detected in surface water but were never analyzed in fish. For
chemicals in surface water that were identified as COIs, bioaccumulation factors (BAFs) were
used to estimate the rate at which a chemical is accumulated from surface water into fish
tissue. BAFs were selected for use in the HHRA from the scientific literature and current
U.S. EPA and regional guidance, using values specific to the Great Lakes region where
available. BAFs applied in this assessment were:
Atrazine: 66 (mg/kg)/(mg/L)
2-Chlorophenol: 28 (mg/kg)/(mg/L)
Di-n-butylphthalate: 3,100 (mg/kg)/(mg/L)
N-Nitroso-di-n-propylamine: 6.8 (mg/kg)/(mg/L)
Pentachlorophenol: 180,000 (mg/kg)/(mg/L)
Thallium: 100 (mg/kg)/(mg/L)
Use of these values combined with EPCs for these chemicals in surface water results in
estimates of fish tissue concentrations for some of these chemicals that significantly exceed
risk-based screening concentrations, specifically for atrazine, N-nitroso-di-n-propylamine,
pentachlorophenol, and thallium (Table 3-5). All four of these chemicals, however, were
detected infrequently in surface water, as follows:
Atrazine: Frequency of Detection in surface water = 1/22 (detected values was
estimated)
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N-Nitroso-di-n-propylamine: Frequency of Detection in surface water = 2/22 (both
detected values were estimated)
Pentachlorophenol: Frequency of Detection in surface water = 2/22 (both detected
values were estimated)
Thallium: Frequency of Detection in surface water =1/19
Inclusion of these contaminants in the risk evaluation could significantly inflate risk estimates
for consumption of fish based on estimates of fish tissue concentrations that are highly
uncertain. Consequently, these chemicals were not included in the risk evaluation for fish
consumption; however, estimated risks associated with consumption of these contaminants in
fish, assuming they are present in fish at the concentrations estimated using the surface water
EPCs and BAFs, are presented for illustrative purposes in Section 5 (Table 5-11).
3.3.3 Exposure Parameters
As shown in the equations in Section 3.3.1, quantification of exposure requires information on
the behavioral characteristics of the population of interest (e.g., how frequently the population
engages in an activity, how many years the population is exposed). Where available, site-
specific information for the Ottawa River or nearby areas was used to quantify potential
exposures. In the absence of site-specific information, information on average exposures to
U.S. populations, such as presented in U.S. EPA's Exposure Factors Handbook (U.S. EPA,
1997a), or U.S. EPA standardized default exposure parameters were used.
Consistent with U.S. EPA guidance, exposure parameters for the RME scenario were selected
to represent reasonable upper-bound estimates of exposure (U.S. EPA, 1989). For the CT
scenario, exposure parameters were based on estimates of exposure more reflective of the
population average.
Exposure parameters for the populations of interest for the RME and CT scenarios are
presented in Appendix C. Considerations for selection of exposure parameters for specific
activities are discussed below.
3.3 J. 1 Recreational Activity Patterns
As available and appropriate, recreational activity patterns were based on information
collected at or near the Ottawa River. The frequency of participation in recreational activities
in the Ottawa River, such as boating, was based on survey data (Hushak, 2000). Specifically,
the upperbound (RME) exposure duration and frequency for individuals exposed to surface
water while fishing (i.e., boaters) was based on the upperbound exposure duration and
frequency for boaters reported in Hushak (2000)6 hours per day and 30 events per year.
Other site-specific activities data such as swimming was not available for Ohio. In the
absence of such information, information on national average exposure durations for different
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recreational activities, gathered by U.S. EPA and reported in U.S. EPA's Exposure Factors
Handbook, was used to establish these parameters (U.S. EPA, 1997a).
Specifically, for the RME scenario it was assumed that an adult recreator engaged in
recreational activities that involved intensive contact with Ottawa River water for 24 days per
year (approximately 4 days per month for 4 months and 1 day per month for 8 months) for 3
hours per event. For the RME scenario it was assumed that child recreators (ages 1 through
14 years) engaged in recreational activities in the Ottawa River for an average of 48 days per
year (approximately 8 days per month for 4 months and 2 days per month for 8 months) for 3
hours per event. For the CT scenario, adults were assumed to engage in recreational
activities for 16 days per year (approximately 2 days per month for 4 months plus 1 day per
month for 8 months) for 1 hour per event, and children were assumed to engage in
recreational activities for 30 days per year (approximately 1 day per week for 4 months, 2
days per month for 4 months, and 1 day per month for 4 months) for 1 hour per event.
3.3.3.2 Fish Consumption Rates
Fish consumption rates for the angler populations evaluated in this HHRA were based on the
assumption that the population of interest is recreational anglers who fish regularly for
recreation or sport and their family members who consume the recreationally caught fish.
Fish consumption by subsistence anglers (i.e., those who fish mainly to provide a dietary
staple) was not evaluated in this HHRA.
It is assumed that the anglers evaluated in this assessment consume fish at a higher average
rate than the general U.S. population. For example, some authors have found that persons
who eat sport-caught fish consume two- to three-times more fish than the overall U.S.
population (ATSDR, 2000). Consequently, use of fish consumption rates from national
consumption surveys is inappropriate. Since site-specific information on fish consumption
rates have not been collected as part of this project, data from other regional studies (/. e., from
the Great Lakes region) were used to assess exposures via this pathway.
Among the data used to assess fish consumption patterns for the populations of interest is a
mail survey conducted of Michigan sport fish license holders by West et al. (1992; 1993 as
cited in CalEPA, 1997). In 1988, West et al. gathered fish consumption information for all
members of the household for a seven-day recall period, including information on self-caught
fish (West et al., 1992). A main objective of the survey was to collect information on fish
consumption rates by subgroups, especially minorities, who may have an especially high rate
of fish consumption. The overall mean rate for fish consumption reported by West et al.
(1992) is 18.3 g/person/day for the winter-spring period for sport anglers and their family
members who consumed fish. They noted that higher rates of consumption would be
expected during the summer-fall months. The authors estimated an average sport fish
Printed on recycbd paper
39
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consumption rate of 14.5 g/person/day (adjusted downward by 2.2 g to account for
nonresponse, assuming that those who did not respond to the survey were less likely to
consume as much fish), with an upper level intake (96lh percentile) of 81.6 g'person/day.
Average fish consumption rates were higher among some minority groups (20.3 g'day for
Blacks, 24.3 g/day for Native American, and 17.9 g/day for other minorities).
In 1991-92, West et al. conducted a year-long study to more thoroughly evaluate fish
consumption rates in Michigan (West et al.y 1993). The mail survey was randomly delivered
to 7,000 licensed anglers, who were asked to provide fish consumption information for the
licensee only (not the household members) for a seven-day recall period (the 1988 survey had
found that household member consumption rates were statistically interdependent with the
license holders, and that they consumed proportionally less according to body weight).
Consumption information was collected throughout the year to capture a full year cycle in fish
consumption behavior. Information was gathered on sport fish consumption from any
Michigan waters, including the Great Lakes and Michigan Rivers that flow into the Great
Lakes. Sport fish consumption averaged 14.5 g/person/day (adjusted for nonresponse bias).
West et al. (1993) also found that lower income groups had higher mean rates of sport fish
consumption (21.0 g/person/day for <514,999 per year and 20.6 g/person/day for $15,000-
24,999 per year). In addition, minority anglers had significantly higher mean consumption
rates than White anglers (23.2 vs. 16.3 g/person/day). Lower income minorities (= $24,999)
had the highest mean sport fish consumption rates of 43.1 g/person/day.
Data from these surveys (West etal., 1992; 1993) were used assess exposures to contaminants
in the Lower Ottawa River via sport fish consumption. To reflect the possible range of
exposures, ipper percentile and mean fish consumption rates described by West et al. (1992;
1993) were used to assess potential risks to recreational anglers. However, due to the
proximity of the Lake Erie to the Lower Ottawa River, it is assumed that anglers only spend a
portion of their time fishing in the Lower Ottawa River and that only a fraction of their annual
consumption of self-caught fish comes from the Lower Ottawa River. For purposes of this
HHRA, it was assumed that one-half of the upper percentile and mean fish consumption rates
for Michigan sport anglers reported by West et al. provided a reasonable estimate of sport fish
consumption rates for the Lower Ottawa River. Specifically, risks were calculated assuming
an upper percentile ingestion rate of 41 g/day for the adult RME scenario and a mean
ingestion rate of 7.3 g/day for the adult CT scenario. These consumption rates correspond to
approximately 60 and 10 8-ounce fish meals per year, respectively (an 8-ounce filet of fish is
approximately the size of a deck of cards). For the child exposure scenario, consumption
rates were adjusted on a per body weight basis. The resulting upper percentile and mean
ingestion rates for children were 18 and 3.1 g/day, respectively.
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3.3.4 Chemical-Specific Uptake Factors
Chemical-speciric uptake factors are used to estimate absorption of chemicals into tissue. For
this HHRA, uptake factors were identified from U.S. EPA guidance documents and the
scientific literature, as appropriate. Uptake factors used in the HHRA include:
Dermal absorption factors (ABS), used to estimate the rate at which a chemical
desorbs from sediment and absorbs through the skin upon dermal contact;
Permeability constants (Kp), used to estimate the rate at which a chemical in surface
water absorbs through the skin; and
Gastrointestinal absorption factors (GAF), used to estimate the rate at which a
chemical ingested in soil desorbs from the soil and is absorbed through the
gastrointestinal tract, for use in adjusting administered dose oral reference doses
(RfDs) or slope factors to absorbed dose dermal RJDs or slope factors.
GAFs are presented in Table 4-1 (Toxicity Criteria). Other chemical-specific uptake factors
used in the HHRA are presented in Table 3-6.
3.4 Derivation of Dose Estimates
For each exposure population, doses were estimated for each pathway and chemical and
presented in units of milligrams per kilogram body weight per day (mg/kg-d). For evaluation
of noncarcinogenic effects, doses were averaged over one year and presented as average daily
doses (ADDs). For evaluation of cancer risk, doses were averaged over a lifetime (assumed
to be 70 years) and presented as lifetime average daily doses (LADDs). These dose estimates
are compared to toxicity information in the Risk Characterization section.
3.5 Evaluation of Fish Consumption Advisory Categories
Exposures to PCBs in fish were also evaluated for different fish consumption advisory
categories, in accordance with the Protocol for a Uniform Great Lakes Fish Consumption
Advisory (Great Lakes Sport Fish Advisory Task Force, 1993). Consistent with this protocol,
noncanccr hazards for consumption of fish in different river segments were calculated for the
following five advisory categories based on fish tissue concentrations of PCBs:
Category 1: Unrestricted consumption (225 meals/year or 140 g/day)
Category 2: One meal a week (52 meals/year or 40 g/day)
Category 3: One meal a month (12 meals/year or 7.5 g/day)
Category 4: One meal every 2 months (6 meals/year or 3.7 g/day)
Category 5: No Consumption (Do Not Eat)
Consumption rates in grams per year are based on an assumed average meal size of 227 g (1/2
pound) of uncooked fish (Great Lakes Sport Fish Advisory Task Force, 1993). Calculations
considered PCBs only since "the Task Force agreed that the health protection value developed
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41
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for the PCBs would in most instances account for the majority of the potential health risk
from the mixture of chemicals present in fish."
3.6 Evaluation of Exposure to Lead
Exposure to lead was evaluated using U.S. EPA's Integrated Exposure-Uptake Biokinetic
(IEUBK) model for calculation of blood lead concentrations in children from exposure to lead
in different environmental media and the diet (U.S. EPA, 2001b). In the Lower Ottawa River
HHRA, lead was identified as a CO[ for sediment. Since uptake of lead through dermal
contact is considered to be insignificant (U.S. EPA, 2001), lead exposures were evaluated for
one population only, the child recreators, exposed to lead through incidental ingestion of
sediment.
Inputs to the blood lead model used in this HHRA were as follows:
Model default inputs were assumed for exposure to lead in air, water, and diet.
The model soil/dust concentration was assumed to be equal to the sediment EPC for
each segment. If the sediment EPC was less than 200 mg/kg (the IEUBK model
default for background exposures to lead in soil/dust), a soil/dust concentration of 200
mg/kg was assumed.
Using these inputs, blood lead concentrations were calculated for four-hour intervals for a
total exposure period of 84 months (7 years), for each river segment for both the RME and CT
scenarios.
3.7 Exposure Assessment Uncertainties
EPCs were calculated assuming that for nondetected analytes, the COI was present in the
sample at one-half its detection limit. This practice is consistent with U.S. EPA guidance for
screening level risk assessments (U.S. EPA, 1989). For surface water in particular, some
infrequently detected COIs had reported detection limits that exceed risk-based screening
levels. Thus, even when these chemicals were not detected, a significant risk could be
estimated simply by assuming the chemical is present at one-half its detection limit. Use of
one-half the limit of detection as the assumed concentration for these nondetected chemicals
may significantly overestimate actual exposures and risks. In fact, eight of the 13 COIs in
surface water (2-chlorophenol, 4,4'-DDT, aldrin, dieldrin, gamma-BHC, heptachlor, N-
nitroso-di-n-propylamine, and pentachlorophenol) were detected in only two samples, both
collected at RM 0.5 in Segment 1 (in samples #ENW03MS and #ENW03MSD, collected
from the left side of the river during the 2000 OEPA sampling program). Examination of the
sediment data shows that the highest detected sediment concentrations of seven of these eight
compounds (2-chlorophenol, 4,4'-DDT, dieldrin, gamma-BHC, heptachlor, N-nitroso-di-n-
propylamine, and pentachlorophenol) were also measured at this location. Thus, it appears
that the water concentrations are "real" (e.g., they do not reflect sample contamination or
Printed on recycfed paper
42
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another error) and that RM 0.5 could be a hot spot for these chemicals. As such, inclusion of
these compounds as COIs for surface waterand assuming they could be present in surface
water at other locations at a concentration equal to one-half their detection limitis an
appropriately conservative assumption for this screening-level HHRA.
EPCs for sediment are based, in part, on core samples collected in the Ottawa River at depths
extending from the surface to up to 12 inches below the surface. Since these core samples
were homogenized prior to analysis, the reported concentrations essentially represent the
average concentration over the depth interval. Use of these samples may underestimate
concentrations in sediment at the surface, which people are more likely to contact, if sediment
concentrations in the first several inches of sediment are higher than concentrations at depth.
EPCs in fish are based on the average of concentrations detected in fish of a range of sizes
representative of the sizes of fish likely to be caught and consumed by recreational anglers
(i.e., ranging from about 5 to 25 inches in length, with an average of about 12.5 inches in
length). However, at the same locations, larger fish within the same species tend to
accumulate higher concentrations of contaminants than smaller fish. Figure 3-2 shows PCBs
concentrations in fish measured in the Lower Ottawa River compared to fish length. Thus,
the exposure assessment may underestimate the average concentration of contaminants in fish
caught for consumption by anglers who tend to catch and retain only larger fish. Conversely,
the exposure assessment may overestimate average concentrations in fish caught for
consumption by anglers who tend to catch and retain smaller fish.
EPCs in fish are based on a combination of whole fish and skin-on and skin-off filets.
Preparing fish by removing skin and trimming fat can reduce the concentrations of
contaminants in consumed fish, since many contaminants tend to accumulate in the fatty parts
of fish. As discussed previously, however, no clear difference in concentrations between
whole fish and skin-on and -off filets was noted.
EPCs in fish assume no reduction in contaminant concentrations due to cooking. In reality,
cooking methods such as baking, broiling, grilling, or steaming allow juices to drain away
from the fish and remove much of the fat from fish, therefore significantly reducing the levels
of organic contaminants including PCBs and organochlorine pesticides (sometimes by as
much as 30-50%) (U.S. EPA, 1997b). Consequently, the exposure assessment may
overestimate concentrations in consumed fish.
Nursing and pregnant women and young children may be more sensitive to the harmful
effects of some contaminants evaluated in this HHRA, such as PCBs. In this assessment,
exposures from consumption of fish were estimated for an average adult and child. Since fish
consumption rates are assumed to be proportional to an individual's body weight and doses in
this risk assessment are presented in terms of milligrams of contaminant per kilogram body
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43
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weight per day, doses from consumption offish on a per kilogram of body weight basis are
expected to be comparable for different individuals within a population. Thus estimated
doses for adults should be representative of doses to nursing and pregnant women, and
estimated doses for children should be representative of doses for young children.
Exposure parameters used in this HHRA are based on local data if available. However, for
several parameters, default values compiled by U.S. EPA are used. Doses estimated using
these parameters may underestimate or overestimate actual exposures to individuals who are
exposed to contaminants in the Lower Ottawa River. However, since the parameters
compiled by U.S. EPA are generally intended to represent upperbound estimates of exposures
for average populations, it is likely that doses estimated in this assessment overestimate
exposures to most individuals who come in contact with the Lower Ottawa River.
This HHRA assumes that chemicals in ingested sediment are 100% bioavailable (that is, the
chemicals are as likely to be absorbed into the systemic circulation following ingestion in
sediment as they are in the studies upon which the toxicity criteria for these chemicals are
based). However, most toxicity criteria are based on highly available forms of these
chemicals (e.g., water soluble forms) administered in food or water to laboratory animals,
whereas chemicals in sediment are likely to be more tightly bound to sediment particles such
that only a fraction of the total ingested dose is absorbed into the circulation. Thus, assuming
100% bioavailability likely overestimates exposures for the sediment ingestion pathway.
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44
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Figure 3-1. Lower Ottawa River Human Health Risk Assessment Conceptual Model
Primary Tnmpott Secondary Transport Expoaire
Source Mechanism Source Mechanian Medium
fkom
Upt*e
Ĩ
mk> BfcoU
Exposure
Pathway
Adult
Recreators
Child
Recreators
Recreational
Anglers
Adult
Boaters
I
Child
Boaters
CeMw^uoa
i
I
SwCmWaUr
Sarfece
WM/
Iiwidw>tiJ lafectioft
Dwnat Coataet
Incidents! b^ĢĢtioe
O
o
Deems) Ccntsct
O
o
Major complete or open ptfhwty;
quvtftalive assessment In screening
tovtf hunan heath rttfc anmmwx
0
Minor compiele or open pathway,
qualitative assessment in scree ntng
level human health risk assessment
#Ļ itiiway not cofr.p-iele
-------
Figure 3-2. Comparison of Total PCBs Concentrations in Fish Collected
from the Lower Ottawa River* (ppb) vs. Fish Length (inches)
100,000 -C
~ 10.000
V
& 1.000
100
10-:
~
/ ~ ~ ~ ~
~ ~ ~ ~ ~
V.
~ *
~
10 15
Fish Length (Inches)
20
I
25
'Collected from River Mile 0 - 8.8, Inventory 16
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Table 3-1. COIs in Surface Water with Maximum Limits
of Detection Greater than Ten Times Risk-Based Screening Values,
Lower Ottawa River Human Health Risk Assessment
Chemical
Frequency of
Detection
Range of
Detection Limits
(MC/L)
Maximum
Detected
Concentration
(ne/L)
U.S. EPA
Region IX PRG
(nc/L) *
Aldrin
2/21
0.05
0.22 h
0.0040
Arsenic
3/19
2.3
3.8
0.045
Atrazine
1/21
10-20
lb
0.30
Dieldrin
2/21
0.1
0.48 b
0.0042
N-Nitroso-ili-n-propylamine
2/21
10
37 b
0.0096
Pentachlorophenol
2/21
25
79 b
0.56
(a) U.S. EPA Region IX, 2000
(b) All reported detected concentrations are estimated ("J" qualified) values
Table 3-2. Surface Sediment Exposure Point Concentration Summary,
Lower Ottawa River Human Health Risk Assessment
Chemical
Exposure Point Concentration (mg/kg)
Segment 1 Segment 2 Segment 3 Segment 4
(RM 0 to<3.2) (RM 3.2 to<4S) (RM4.ģ to<&5) (RMfc5to&8)
U.S. EPA
Region IX PRG
Residential Soil
(mg/lcg)'
Aldrin
0.020
0.045
0.054
0.0037
0.029
Arsenic
9.4
11
9.1
8.4
0.39
Benzo(a)anthracene
0.31
0.89
2.5
2.3
0.62
Benzo(a)pyrene
0.37
0.75
3.0
2.4
0.062
Benzo(b)fluoranthene
0.42
1.3
3.9
3.0
0.62
Benzo(k)fluoranthene
0.72
0.71
3.4
3.0
6.2
bis(2-EthyIhexyl)phthaIate
2.1
11
220
7.4
35
Dibenz(a,h)anthracene
0.40
0.60
6.5
0.87
0.062
Dieldrin
0.039
0.030
0.017
0.0071
0.030
Heptachlor epoxide
0.025
0.081
0.040
0.0054
0.053
Indeno( 1,2,3-cd)pyrene
0.29
0.58
2.6
2.1
510
Lead
113
363
287
189
400
N-Nitroso-di-n-propylamine
0.54
1.0
6.5
3.1
0.069
PCB Aroclor 1016
0.017
0.34
25
1.3
0.22
PCB Aroclor 1242
1.8
3.4
8.5
3.0
0.22
PCB Aroclor 1248
0.024
0.046
0.33
0.11
0.22
PCB Aroclor 1254
0.019
0.048
0.48
0.96
0.22
Total PCBs
1.3
3.7
50
4.0
0.22
Thallium
6.2
5.8
4.6
2.8
5.2
(a) U.S. EPA Region IX, 2000
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Table 3-3. Surface Water Exposure Point Concentration Summary, Lower Ottawa River Human Health Risk Assessment
Chemical
Exposure Point Concentration (pg/L)
Segment 1 Segment 2 Segment 3 Segment 4
(RMOto (RM 3.2 to (RM 4.9 to (RM6.5to
<3.21 <4.9> <651 8.8)
U.S.EPA
Region IX PRC.
Tap Water
(tģg/L)*
U.S. EPA
MCL
0*g/L) b
U.S. EPA
MCLG
(Hg/L)"
Lake Erie
Basinllll
Sc reening Values
(nondrinking)
(ng'i)c
2-Chlorophenol
29
5.0
5.0
5.0
30
NA
NA
150
4,4'-DDT (p,p'->
0.21
0.050
0.050
0.050
0.2
NA
NA
0.00015
Aldrin
0.12
0.025
0.025
0.025
0.004
NA
NA
NA
Arsenic
2.1
3.8
1.2
1.2
0.045
50
NA
580
Atrazine
9.0
5.0
5.0
5.0
0.3
3
3
NA
Dieldrin
0.26
0.050
0.050
0.050
0.0042
NA
NA
0.0000065
gamma-Benzene hexachloride
0.11
0.025
0.025
0.025
0.052
0.2
0.2
0.5
Heptachlor
0.10
0.025
0.025
0.025
0.015
0.4
0
NA
Lead
7.8
7.3
5.9
2.4
NA
15
0
19(1
N-Nitroso-di-n-propylamine
18
5.0
5.0
5.0
0.0096
NA
NA
NA
Pentachlorophenol
38
13
13
13
0.56
1
0
1 6
Thallium
2.5
1.6
1.6
1.6
2.4
2
0.5
3 7
(a) U.S. EPA Region IX, 2000
(b) U.S. EPA, 2001c
(c) Ohio EPA 1999
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Table 3-4. Fish Exposure Point Concentration Summary,
Lower Ottawa River Human Health Risk Assessment
Chemical
Exposure Point Concentration (mg/kg)
Segment 1 Segment 2 Segment 3 Segment 4
(RM 0 to <3.2) (RM 3.2 lo <4.9) (RM 4.9 to <6.S) (RM 6.S to 8.8)
U.S. EPA
Region III
RBC
Fish
(mg/kg) *
U.S. FDA
Action
Levels
for Edible
Portions
(mg/kg)'
4,4'-DDD (p,p'-)
0.092
0.046
0.052
0.091
0.013
5
4,4'-DDE (p,p-)
0.16
0.11
0.081
0.13
0.093
5
4,4'-DDT (p,p'-)
0.19
0.070
0.041
0.20
0.093
5
Aldrin
0.0049
0.0049
0.012
0.0050
0.00019
0.3
alpha-Chlordane
0.018
0.0049
0.0056
0.031
0.0090
0.3
Arsenic
0.16
0.15
0.090
0.094
0.0021
NA
Chlordane
0.16
0.065
0.21
0.076
0.0090
0.3
Dieldrin
0.020
0.0051
0.0049
0.034
0.00020
0.3
gamma -Chiordane
0.13
0.065
0.16
0.035
0.0090
0.3
PCB Aroclor 1242
5.4
2.6
6.7
2.5
0.0016
2
PCB Aroclor 1260
0.40
0.32
0.38
0.45
0.0016
2
Total PCBs
5.9
2.8
5.8
2.9
0.0016
2
trans-Nonachlor
0.0049
0.0049
0.0049
0.011
0.0090
0.3
(a) U.S. EPA Region ID, 2000
(b) U.S. FDA, 1998
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Table 3-5. Fish Tissue Concentrations Estimated from Surface Water Concentrations and
Bioaccumulation Factors, Lower Ottawa River Human Health Risk Assessment
Chemical
Estimated Fish Tissue Concentration (mg/kg)
Segment 1 Segment 2 Segment 3 Segment 4
(RM 0 to <3.2) (RM 3.2 to <4.9) (RM 4.9 to <65) (RM 6.S to 8.8)
U.S. EPA
Region III
RBC
Fish
(mg/kg)"
U.S. FDA
Action
Levels
for Edible
Portions
(mg'kg)r
2-Chlorophenol
0.81
16
0.14
0.14
6.8
NA
Atrazine
0.60
0.33
0.33
0.33
0.014
NA
Di-n-butylphthalate
19
16
16
16
140
NA
N-Nitroso-di-n-propylamine
0.12
0.034
0.034
0.034
0.00045
NA
Pentachlorophenol
183
60
60
60
0.026
NA
Thallium
0.25
0.16
0.16
0.16
0.095
NA
(a) U.S. EPA Region III, 2000
(b) U.S. FDA, 1998
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Table 3-6. Chemical-Specific Uptake Factors Used in the I.ower Ottawa River HHKA
Dermal Absorption
Absorption Factor Factor (K,)
Chemical
CAS No.
(AH.S)
(cm/hr)
K, Reference
2-Chlorophenol
95-57-8
0.1
3.30E-02
1!.S. EPA, 1992a
Aldrin
309-00-2
0.1
1.60E-03
RAIS, 2001 (calc from log Kow)
Arsenic
7440-38-2
0.032
1.00E-03
U.S. EPA, 1992a
Atrazine
1912-24-9
0.1
7.60E-03
RAIS, 2001 (calc ftom log Kow)
Benzo(a)anthracene
56-55-3
0.1
8.10E-01
RAIS, 2001 (calc from log Kow)
Benzo(a)pyrene
50-32-8
0.1
1.20E-00
RAIS, 2001 (calc from log Kow)
Benzo(b)fluoranthene
205-99-2
0.1
1.20E+00
RAIS, 2001 (calc from log Kow)
Benzo(k)fluoranthene
207-08-9
0.1
6.00E-01
RAIS, 2001 (calc from log Kow)
bis(2-EthylhexyI)phthalate
117-81-7
0.1
3.30E-02
RAIS, 2001 (calc from log Kow)
Chlordane
12789-03-6
0.1
5.20E-02
RAIS, 2001 (calc from log Kow)
DDD
72-54-8
0.1
2.80E-01
RAIS, 2001 (calc from log Kow)
DDE
72-55-9
0.1
2.40E-01
RAIS, 2001 (calc from log Kow)
DDT
50-29-3
0.1
4.30E-01
RAIS, 2001 (calc from log Kow)
Dibenzo(a,h)anlhracene
53-70-3
0.1
2.70E+00
RAIS, 2001 (calc from log Kow)
Dieldrin
60-57-1
0.1
1.60E-02
RAIS, 2001 (calc from log Kow)
Di-n-butylphthalate
84-74-2
0.1
3.30E-02
U.S. EPA, 1992a
g-BHC (Lindane)
58-89-9
0.1
1.40E-02
RAIS, 2001 (calc from log Kow)
Heptachlor
76-44-8
0.1
1.10E-02
RAIS, 2001 (calc from log Kow)
Heptachlor epoxide
1024-57-3
0.1
5.50E-02
RAIS, 2001 (calc from log Kow)
Indeno| 1,2,3-cd Jpyrene
193-39-5
0.1
1.90E+00
RAIS, 2001 (calc from log Kow)
Lead
7439-92-1
0.01
4.00E-06
U.S. EPA, 1992a
N-Nitroso-di-n-propylamine
621-64-7
0.1
2.80E-03
RAIS, 2001 (calc ftom log Kow)
PCB Aroclor 1016
12674-11-2
0.06
7.90E-01
RAIS, 2001 (calc from log Kow)
PCB Aroclor 1242
$3469-21-9
0.06
3.70E-02
RAIS, 2001 (calc ftom log Kow)
PCB Aroclor 1248
12672-29-6
0.06
3.70E-01
RAIS, 2001 (calc from log Kow)
PCB Aroclor 1254
11097-69-1
0.06
3.50E-01
RAIS, 2001 (calc from log Kow)
PCB Aroclor 1260
11096-82-5
0.06
1.10E+00
RAIS. 2001 (calc from log Kow)
PCBs (high risk and persistence)
1336-36-3
0.06
3.50E-01
RAIS, 2001 (calc from log Kow)
PCBs (low risk and persistence)
1336-36-3
0.06
3.50E-01
RAIS, 2001 (calc from log Kow)
Pentachlorophenol
87-86-5
0.244
6.50E-01
RAIS, 2001 (calc from log Kow)
Thallium
7440-28-0
0.01
1.00E-03
U.S. EPA, 1992a
8001-35-2
0.1
1.50E-02
RAIS, 2001 (calc from log Kow)
(a) U.S. EPA Region III, 1995
NA Not applicable or Not available
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4.0 Toxicity Assessment
The goal of the Toxicity Assessment step is to characterize the toxicity of the COIs and
identify quantitative toxicity criteria for each chemical, for use in evaluating the likelihood of
adverse health effects from estimated exposures.
4.1 Types of Toxicity Criteria
Availability of the following types of toxicity criteria was determined for each of the COIs:
U.S. EPA reference doses (RfDs) for evaluation of noncarcinogenic effects; and
U.S. EPA slope factors (SFs) for evaluation of cancer risks.
The approach used by the U.S. EPA and other regulatory agencies to assess risks associated
with noncarcinogenic effects is to identify an exposure threshold below which adverse effects
are not observed. The first adverse effect that occurs as the dose or concentration increases
beyond the threshold is called the "critical effect" (U.S. EPA, 2001a). Selection of regulatory
levels for noncarcinogenic effects is based on the assumption that if the critical effect is
prevented, then all toxic effects are prevented. For evaluation of noncarcinogenic effects,
U.S. EPA has established RfDs, which are estimates (with uncertainty spanning perhaps an
order of magnitude) of a daily oral exposure to the human population (including sensitive
subgroups) that is likely to be without an appreciable risk of deleterious effects during a
lifetime (U.S. EPA, 2001a). U.S. EPA derives RfDs from threshold doses based on No
Observed Adverse Effect Levels (NOAELs), Lowest Observed Adverse Effect Levels
(LOAELs), or benchmark doses, for noncarcinogenic endpoints such as effects on
reproduction, developmental effects, learning deficits, or immunological effects. A NOAEL
is the highest dose in a given study at which no statistically or biologically significant
indication of the toxic effect of concern has been identified, while a LOAEL is the lowest
dose at which the toxic dose has been identified. NOAELs and LOAELs are typically
established from studies in animals or worker exposure studies. Since there are limitations
inherent in these data for determining the risks associated with human exposure to these
chemicals in the environmental, these threshold doses are divided by uncertainty factors to
develop RfDs.
U.S. EPA evaluates cancer risks based on extrapolations from estimates of the increase in
cancer incidence associated with exposure to specific doses of the substance in animal or
worker exposure studies. To evaluate cancer, U.S. EPA has developed cancer slope factors
(SFs), which are upper bounds, approximating 95% confidence limits, on the increased cancer
risk from a lifetime exposure to an agent. SFs, usually expressed in units of proportion (of a
population) affected per mg/kg/day, are generally reserved for use in the low-dose region of
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the dose-response relationship, that is, for exposures corresponding to risks less than 1 in 100
(U.S. EPA, 2001a).
4.2 Sources of Toxicity Criteria
Availability of the following types of toxicity criteria was determined for each of the COls:
U.S. EPA reference doses (RfDs) for evaluation of noncarcinogenic effects;
U.S. EPA slope factors (SFs) for evaluation of cancer risks; and
Agency for Toxic Substances and Disease Registry (ATSDR) minimal risk levels
(MRLs) for evaluation of noncarcinogenic effects.
Several sources of toxicity criteria were consulted. For purposes of the HHRA, toxicity
criteria were identified according to the following hierarchy of sources:
U.S. EPA's Integrated Risk Information System (IRIS) database (U.S. EPA, 2001a).
This database was the primary source of toxicity criteria for the HHRA. The IRIS
database includes verified RfDs and SFs developed by the U.S. EPA, as well as
information on the derivation of these values, and is regularly reviewed and updated.
Consistent with U.S. EPA risk assessment guidance (U.S. EPA, 1989), information in
IRIS superseded all other sources.
U.S. EPA's Region IXPRG and Region III RBC tables. These tables (U.S. EPA
Region IX, 2000 and U.S. EPA Region III, 2000) provide risk-based screening levels,
as described in Section 2.4, that are based largely on U.S. EPA RfDs and SFs
compiled from the IRIS database. However, since toxicity criteria are often
withdrawn from the IRIS database for review, these tables also include withdrawn
U.S. EPA toxicity values published in earlier versions of IRIS or in U.S. EPA's Health
Effects Assessment Summary Tables (HEAST), in order to avoid exclusion of
chemicals due to a lack of toxicity criteria. If a toxicity criterion for a given chemical
was not listed in IRIS but was listed in the PRG or RBC tables, the criterion listed in
the PRG and RBC tables was used in the HHRA.
Agency for Toxic Substances and Disease Registry Minimal Risk Levels (MRLs). The
ATSDR has established MRLs as estimates of the daily human exposure to hazardous
substances that are likely to be without appreciable risk of adverse noncancer health
effects over a specified duration of exposure (ATSDR, 2001). These values are
established in a manner similar to U.S. EPA RfDs, are intended to serve as screening
levels, and are used by ATSDR health assessors and other responders to identify
contaminants and potential health effects that may be of concern at hazardous waste
sites. ATSDR has established MRLs for inhalation and ingestion routes of exposure,
for acute, subchronic, and chronic exposure durations. If a toxicity criterion for a
given chemical was not listed in IRIS or in the PRG or RBC tables, the ATSDR MRLs
were consulted. However, none of the chemicals lacking toxicity criteria after review
of IRIS or the PRG or RBC tables had ATSDR MRLs.
U.S. EPA's Integrated Exposure-Uptake Biokinetic (IEUBK) Model (U.S. EPA,
2001b). Since the U.S. EPA has not published toxicity criteria (RfDs or SFs) for lead,
this model was used to evaluate exposures to lead. The IEUBK model estimates blood
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lead concentrations resulting from exposure to lead through different pathways.
Estimated blood lead concentrations were then compared to the Centers for Disease
Control recommended target blood lead concentration of 10 ng/dL.
Toxicity criteria used in this HHRA are presented in Table 4-1.
In addition, several other health-risk based standards were identified, including the following:
U.S. EPA national primary drinking water standards including Maximum
Contaminant Levels (MCLs) and Maximum Contaminant Level Goals (MCLGs);
State of Ohio surface water quality standards (OEPA, 1999) established as the
minimum water quality levels for the waters of the Great Lakes and their tributaries;
and
U.S. Food and Drug Administration (U.S. FDA) action levels for fish.
These are compared to EPCs for each of the COIs in Tables 3-2, 3-3, and 3-4.
4.3 Evaluation of PCB Toxicity
PCB concentrations can be presented either as specific congeners or as Aroclor mixtures. The
term "congener" refers to specific PCB compounds distinguished by the number and
arrangement of chlorine atoms bound to the molecule's 10 carbon atoms, while "Aroclor" is
the tradename for commercial mixtures of congeners that were manufactured in the United
States. Aroclors (Aroclors 1016, 1242,1248, 1254, and 1260) have been measured in Lower
Ottawa River sediments and fish. None of the samples collected from the Lower Ottawa
River has been analyzed for congeners. Although fish collected by the U.S. Fish and Wildlife
Service (U.S. FWS) in 1999 in North Maumee Bay of Lake Erie, within 0.25 miles of the
inside (south) shore of the Woodtick Peninsula, were analyzed for PCB congeners and
Aroclors (U.S. FWS, 1999), these data were not used in the HHRA since none of the fish
were collected in the Ottawa River. U.S. EPA has stated that evaluation of PCB exposures in
terms of Aroclors can be imprecise since Aroclors are commercial mixtures of congeners and
the the composition of PCB mixtures can change in the environment over time (U.S. EPA,
1996). However, in this HHRA, PCB toxicity was evaluated based on the Aroclor
concentrations since no other data were available for any of the media evaluated in this
assessment.
U.S. EPA has published noncancer RfDs for two Aroclors, Aroclor 1016 and Aroclor 1254,
based on reproductive effects (reduced birth weight) in monkeys administered Aroclor 1016
and immunologic effects in monkeys administered Aroclor 1254. Overall, human studies
have provided limited to inadequate evidence of carcinogenicity but animal studies have been
considered to provide sufficient evidence of carcinogenicity. Based on these findings, some
commercial PCB mixtures have been characterized as probably carcinogenic to humans,
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although U.S. EPA has stated, "there has been some controversy about how this conclusion
applies to PCB mixtures found in the environment" (U.S. EPA, 1996).
Studies have demonstrated that the range of cancer potency for different PCB mixtures is
influenced by the chlorine content, with congeners with higher chlorine content having higher
toxicity. In addition, congeners with higher chlorine content tend to be more persistent. For
example, congeners in soil and sediment or that have bioaccumulated (e.g., in fish) tend to be
highest in chlorine content and persistence (U.S. EPA, 1996). In addition, certain population
groups including children may be more susceptible to health effects from exposure to PCB
mixtures. Since the actual composition of PCB mixtures in the environment is uncertain and
the toxicity of different mixtures can vary, U.S. EPA recommends using a tiered approach to
evaluate the cancer potency of PCB mixtures in the environment (U.S. EPA, 1996, 2001a).
According to this approach, cancer slope factors are selected based on information about
exposed populations, potential pathways of exposure, and the likely environmental
persistence of the particular PCB mixture
In their tiered approach for evaluation of exposure to PCB mixtures, U.S. EPA (1996)
recommends the following:
To evaluate food chain exposure, sediment or soil exposure, dermal exposure, and
early life exposure (i.e"high risk and persistence" exposure), use an upper-bound
slope factor of 2.0 (mg/kg-d)*1 and a central-estimate slope factor of 1.0 (mg/kg-d)"1
(U.S. EPA, 1996);
To evaluate adult ingestion of water soluble congeners (i.e., "low risk and persistence"
exposure), use an upper-bound slope factor of 0.4 (mg/kg-d)'1 and a central estimate
slope factor of 0.3 (mg/kg-d)"1 (U.S. EPA, 1996).
The upperbound SFs for PCBs were used in this HHRA.
PCB hazards were also evaluated for different fish consumption categories consistent with the
Protocol for a Uniform Great Lakes Sport Fish Consumption Advisory developed by the
Great Lakes Sport Fish Advisory Task Force (1993) (discussed in Section 3-5). For this
evaluation, the Task Force-recommended "weight-o ^evidence derived" RfD of 0.00005
mg/kg-d was used.
4.4 Evaluation of Carcinogenic Poiycyclk Aromatic Hydrocarbons
A number of polycyclic aromatic hydrocarbons (PAHs) were identified as COIs in sediment.
Of these, only one (benzo(a)pyrene)) has a U.S. EPA cancer slope factor. U.S. EPA has
identified Toxicity Equivalency Factors (TEFs) for other carcinogenic PAHs, based on the
potency of each compound relative to that of benzo(a)pyrene (U.S. EPA, 1993). These TEFs
were used to convert each carcinogenic PAH concentration to an equivalent concentration of
benzo(a)pyrene) as follows:
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Benzo(a)pyrene: TEF=1.0;
Benzo(a)anthracene: TEF = 0.1;
Benzo(b)fluoranthene: TEF = 0.1;
Benzo(k)fluoranthene: TEF = 0.01;
Chrysene: TEF = 0.001;
Dibenz(a,h)anthracene: TEF = 1.0; and
Indeno(l,2,3-cd)pyrene: TEF = 0.1.
4.5 Evaluation of Arsenic Toxicity through Fish Consumption
A number of studies have demonstrated that both inorganic and organic forms of arsenic are
present in the tissue of freshwater finfish, with most of the arsenic in an organic form (U.S.
EPA Region VI, 1998). However, the toxicity of inorganic and organic forms of arsenic has
been shown to differ: organic arsenic has not been shown to be carcinogenic while inorganic
arsenic has been demonstrated to be a carcinogen (U.S. EPA Region IV, 1998). Consequently,
assuming that 100% of the arsenic in fish is inorganic will likely overestimate the cancer risk
from consumption of arsenic in fish. Although most studies of arsenic speciation in fish have
measured less than 10% of the arsenic as inorganic (range 0.1 to 30%), U.S. EPA Region VI
recommends assuming that 30% of the arsenic is inorganic for purposes of assessing arsenic
cancer risks associated with fish ingestion (U.S. EPA Region VI, 1998). For purposes of this
HHRA, the assumption that 30% of the arsenic in fish is inorganic was applied.
4.6 Route-to-Route Extrapolation of Reference Doses and Slope Factors
Because the U.S. EPA has not promulgated dermal toxicity values for most chemicals, oral
RfDs and SFs were modified using gastrointestinal absorption data to evaluate exposures to
chemicals via the dermal route. Since the intake equations for the dermal routes presented in
Section 3.2 generate estimates of absorbed dose, and most oral toxicity criteria are based on
administered dose, dermally absorbed doses were calculated by adjusting the oral toxicity
criteria based on the oral absorption rate (represented by the gastrointestinal absorption factor
or GAF), using the following equations (U.S. EPA, 1989).
To adjust an administered dose RfD to an absorbed dose (dermal) RfD, the following equation
was used:
RfD^m x Oral absorption rate (GAF) = RJDab,
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To adjust an administered dose slope factor to an absorbed dose (dermal) slope factor, the
following equation was used:
SF
adm
Oral absorption rate(GAF) abs
GAFs used in this HHRA are presented in Table 4-1.
4.7 Evaluation of Lead Toxicity
Hazards associated with exposure to lead were evaluated using the U.S. EPA IEUBK model,
which estimates concentrations of lead in blood in children based on exposure to lead in
different environmental media combined with background exposures to lead in the diet and in
drinking water. The model provides output in the form of geometric mean and 90th percentile
blood lead concentrations, for different age groups ranging from six months to seven years.
For purposes of evaluating potential hazards from lead exposure, these concentrations were
then compared to the Centers for Disease Control (CDC) target blood lead level for children
of 10 (ig/dL. This target level is based on studies in children that identified harmful effects on
neurodevelopment and other endpoints at blood lead levels higher than 10 jig/dL.
4.8 Toxicity Assessment Uncertainties
A number of uncertainties are evident in the toxicity criteria used in this HHRA to evaluate
the likelihood of adverse health effects from exposure to chemical contaminants. For
example, most toxicity criteria are based on observations of adverse health effects in animals
exposed to very high concentrations of chemicals in the diet or water, or on data oti adverse
effects in adult workers exposed to high concentrations of chemicals in the workplace.
Because of differences between the exposures that are the basis for these criteria and
exposures evaluated in this HHRA, these criteria may under- or overestimate, but most likely
overestimate, actual risks to people from exposure to lower concentrations in environmental
media.
In this assessment, risks from exposure to PCBs are evaluated based on concentrations of
Aroclor mixtures measured in surface water, sediment, or fish. However, Aroclors are
commercial mixtures of PCB congeners and, once released to the environment, the
composition of these mixtures can change due to differences in partitioning, chemical
transformation, and bioaccumulation of the different congeners in the mixture (U.S. EPA,
1996). Thus, concentrations of PCBs estimated based on Aroclor mixtures can be imprecise,
and estimated concentrations may over- or underestimate actual concentrations of total PCBs
that are present. Further, congeners vary in toxicity, and since data on Aroclor toxicity are
based on the commercial mixtures rather than the mixtures that are present in the
environment, toxicity estimates based on commercial Aroclors may under- or over-estimate
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risks for the mixture of PCB congeners present in the environment. However. U.S. F.PA's
tiered approach for evaluating the toxicity of PCBs in the environment based on the assumed
pathways of exposure to PCBs and the relative persistence of PCBs likely to be present in
different environmental media, is intended to provide a conservative estimate of potential
PCB mixtures in the environment.
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Tabic 4-1. Toxicity Criteria Used in the Lower Ottawa River Human Health Risk Assessment
Oral
Denaai
Oral
Dermal
RID
RfD
SF
SF
US EPA Caacer
CI Absorption
Ckaafcal
CAS No.
(mg/kg-d)
(mg/kg-d)'
(tng/kg-d)'1
(mg/kg-d) ' *
Classification
Factor (GAF)
CAK Reference
2-CMoropheaol
95-57-8
5.0E-03
2.5E-03
NA
NA
NA
0.5
RAIS. 2001
Aldrin
309-00-2
3.0E-05
1.5E-05
1.7E+01
3.4E+01
B2
0.5
ATSDR, 1993a
Arsenic
7440-38-2
3.0E-04
1.2E-04
1.5E+O0
3.7E+00
A
0.41
Bettley and O'Shea, 1975
Atnmne
1912-24-9
3.5E-02
1.8E-02
NA
NA
NA
0.5
RAIS, 2001
BettSoNAanthracene
56-55-3
NA
NA
7.3E-01
NA
B2
0.31
Rahman et a!.. 1986
BenxoNApynoe
50-32-8
NA
NA
7.3E+00
2.4E+01
B2
0.31
Rahman et al., 1086
Bcn2o(b)ftumnthene
205-99-2
NA
NA
7.3E-01
NA
B2
0.31
Rahman et al.. 1986
BcnzoQOQuonotboe
207-08-9
NA
NA
7.3E-02
NA
B2
0.31
Rahman et al,, 1986
bis(2-Ethylhexyt)phthalate
117-81-7
2.0E-02
3.8E-03
1.4E-02
7.4E-02
B2
0.19
Tcirlynclc and Belpaire, l')85
Chlordane
1278M3-6
5.0E-04
2.5E-04
3.5E-01
7.0E-0I
B2
0 5
ATSDR, 1992a
DDD
72-54-8
NA
NA
2.4E-01
3.4E-OI
B2
0.7
ATSDR. 1992b
DDE
72-55-9
NA
NA
3.4E-01
4.9E-01
B2
0.7
ATSDR, 1992b
DDT
50-29-3
5.0E-04
3.5E-04
3.4E-0I
4.9E-01
B2
0.7
ATSDR, 1992b
Djbenzo(a,h)tn8nģcĢpe
53-70-3
NA
NA
7.3E+00
NA
B2
0.3 1
Rahman et al., 1986
Dieldrin
60-57-1
5.0E-O5
2.5E-05
16
3.2E+01
B2
0.5
AISDR, 1991a
Di-c-butylphthalate
84-74-2
1.0E-01
l.OE-01
NA
NA
D
1
RAIS, 2001
g-BHC (Lindane)
58-89-9
3.0E-04
2.9E-04
NA
NA
NA
0.97
Sabourin et al., 1987
Heptachlor
76-44-8
5.0E-O4
3.6E-04
4.5E+00
6.3E+00
B2
0.72
ATSDR, 1993b
HeptacMor epoxide
1024-57-3
1.3E-05
9.4E-06
9.1E+00
1.3E+01
B2
0.72
ATSDR, 1993b
lndeno( 1 ^^-cd^jyrene
193-39-5
NA
NA
7.3E-01
NA
B2
0.31
RAIS, 2001
Lead
7439-92-1
NA
NA
NA
NA
B2
0.15
Gayer 1991
N-Nitroeo-di-n-propyiamine
621-64-7
NA
NA
7.0E+00
28
B2
0 25
RAtS. 2001
PCS Aroclor 1016
12674-11-2
7.0E-05
6.3E-05
NA
NA
B2
0.9
RAIS, 2001
PCB Aroclor 1242
53469-21-9
NA
NA
NA
NA
B2
0.9
RAIS, 2001
PCB Aroclor 1248
12672-29-6
NA
NA
NA
NA
B2
0.9
RAIS, 2001
PCB Aroclor 1254
11097-69-1
2.0E-05
1.8E-05
NA
NA
B2
11.9
RAIS, 2001
PCB Aroclor 1260
11096-82-5
NA
NA
NA
NA
B2
0.9
RAIS, 2001
PCBj (high risk and peraiatence)
1336-36-3
NA
NA
2.0E+00
2.2E+00
B2
0.9
US EPA. 1992
PCBs (low ruk and penistence)
1336-36-3
NA
NA
4.0E-0!
4.4E-01
B2
0.9
RAIS, 2001
Pentachlocopheuol (PCP)
87-86-5
3.0E-02
3.0E-02
1.20E-01
1.2E-01
B2
1
RAIS, 2001
Thallium
7440-28-0
6.7E-05
1.0E-05
NA
NA
D
0.15
RAIS, 2001
Toxaphcne
8001-35-2
NA
NA
1.1E+00
2.2E+00
B2
0 5
US F.PA Region IV, 20IH>
(a) Absorbed Dermal RIDs baaed on available Oral RiDs and GI Absorption Factora
(b) Absorbed Dermal SFĢ based on available Oral SFs and Gl Absorption Factors
(c) US BPA Cancer Clarification: A, Human carcinogen; Bl, Probable human carcinogen; B2, Probable human carcinogen; C. Possible human caainoijen; 1), Nol classifiable as to human carcinogenicity
NA Not applicable or Not available
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5.0 Risk C harac teriza tion
In the Risk Characterization section, the results of the toxicity and exposure assessments are
integrated to develop quantitative measures of the potential for adverse health effects.
Specifically, dose estimates are compared to quantitative toxicity criteria to provide a
quantitative measure of the likelihood of noncarcinogenic effects or lifetime excess cancer
risk.
5.1 Noncarcinogenic Effects
The potential for noncarcinogenic effects was evaluated using the Hazard Index (HI)
approach. This approach assumes that simultaneous subthreshold exposures to several
chemicals could result in an adverse health effect and that the magnitude of the adverse effect
is proportional to the sum of the ratios of the subthreshold exposures to acceptable exposures
(U.S. EPA, 1989). The HI is equal to the sum of Hazard Quotients (HQs) calculated for each
chemical- and pathway-specific dose. HQs were calculated by dividing the estimated ADD
for each chemical and pathway by the appropriate RfD for that chemical and pathway, using
the following equation:
_ ADD(mg / kg-d)
RfD(mg / kg- d)
Then, HQs for each pathway were summed to obtain an HI for each pathway. Pathway-
specific His were summed to obtain an HI for each population and scenario. According to
U.S. EPA (1989) guidance, if the resulting HI is below unity (1), then adverse health effects
are not expected. However, if an HI is equal to or exceeds 1, it does not necessarily mean that
adverse health effects are expected or will occur.
5.2 Cancer Risks
Pathway-specific excess cancer risks for exposure to the COIs were calculated by multiplying
each LADD estimate by the chemical- and pathway-specific SF, using the following equation:
Excess Cancer Risk = LADD (mg/kg-d)xSF (mg/kg-d)~l
Similar to the HQ calculation, the chemical-specific excess cancer risks were then summed to
obtain a total lifetime excess cancer risk value for each pathway. These pathway-specific
cancer risk estimates were then summed to estimate lifetime excess cancer risks for each
population and scenario. Lifetime excess cancer risk is presented as the probability of cancer
occurring as the result of the exposure at some point during an individual's lifetime (U.S.
EPA, 1989). More specifically, lifetime excess cancer risk is defined as the additional or
extra cancer risk incurred over the lifetime of an individual as a result of exposure to a toxic
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substance. To elaborate, the average U.S. citizen has an approximately 1 in 4 chance
(0.250000) of being diagnosed with cancer at some point in his or her lifetime. If the result of
this cancer risk analysis estimated a 1 in a million (0.000001, also written as 1E-06 or lxl0"r>)
excess cancer risk, the total cancer risk to an exposed individual would be 0.250001. Cancer
risks are presented as probabilities (e.g., 1 in one million or 1 x 10'6).
Although there is no universally accepted acceptable risk standard, the U.S. EPA Superfund
program established under the Comprehensive Environmental Response, Compensation, and
Liability Act (CERCLA) generally considers risks above lxlO"6 (1 in 1,000,000) to be
acceptable in nearly all circumstances and risks within the range of lxl 0"4 to lxl 0'6 (1 in
10,000 to 1 in 1,000,000) to be acceptable depending on specific site and exposure
characteristics (U.S. EPA, 1989; U.S. EPA, 1991b). The National Contingency Plan (U.S.
EPA, 1990), which provides the guidelines and procedures needed to respond to releases and
threatened releases of hazardous substances, pollutants, or contaminants under CERCLA,
defines the lxl 0"6 (1 in a million) risk level as the "point of departure" for establishing
remediation goals at contaminated sites. Risks above lxl 0"4 are nearly always considered to
be unacceptable. More specific acceptable risk levels have been identified for certain
circumstances. For example, under U.S. EPA's Great Lakes Initiative (U.S. EPA, 1995), a
lxl0"5 (1 in 100,000) risk level is identified for use in deriving criteria and values for
individual carcinogens in Great Lakes surface water and fish.
5.3 Results
The results of the risk assessment are presented in Tables 5-1 through 5-12, as follows:
Table 5-1: Population- and scenario-specific risks for each area of concern, based on
the sum of pathway-specific risks;
Tables 5-2 through 5-5: Chemical-specific risks for each exposure medium,
population, scenario, and area of concern;
Tables 5-6 through 5-9: Chemical-specific risks for each population, scenario, and
area of concern;
Table 5-10: IEUBK. Model output;
Table 5-11: Cancer risks for consumption of fish with COIs at fish tissue
concentrations estimated from surface water concentrations and BAFs; and
Table 5-12: Fish consumption category risks.
More detailed calculation results are presented in Appendix D.
Results for each population are summarized below.
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5.3.1 Results for the Recreator Scenarios
As shown in Table 5-1, estimated lifetime excess cancer risks for the RME recreator scenario
range from 1 x 10'4 for Segments 1 and 3 (RM 0 to <3.2 and RM 4.9 to <6.5) to 5 x IO'5 for
Segment 2 (RM 3.2 to <4.9). These estimated risks for surface water and sediment contact
and total estimated risks for each river segment are illustrated in Figure 5-1. As shown,
estimated risks for Segments 1 and 3 are at the upperbound of U.S. EPA's acceptable risk
range (i.e., 10'4 to 10"6) (U.S. EPA, 1991b). Risks for the other two segments are within the
range for acceptable risks, but exceed U.S. EPA's point of departure of 10"6. As shown in
Table 5-2 and in Figures 5-2 and 5-3, in all four segments, estimated cancer nsks are
dominated by surface water contact with N-nitroso-di-n-propylamine (12-39% of the total
estimated risk) and pentachlorophenol (18-50% of the total estimated risk), and sediment
contact with PAHs (2-26% of the total estimated risk), N-nitroso-di-n-propylamine (1-17% of
the total estimated risk), and PCBs (<1-20% of the total estimated risk). Estimated cancer
risks for the CT recreator scenario range from 2 * 10"5 for Segments 1 and 3 to 8 * 10'6 for
Segment 2.
As discussed in Sections 2.5 and 3.7, eight of the 13 COls in surface water (2-chlorophenol,
4,4'-DDT, aldrin, dieldrin, gamma-BHC, heptachlor, N-nitroso-di-n-propylamine, and
pentachlorophenol) were detected in only two surface water samples, both collected at RM
0.5 in Segment 1 (samples #ENW03MS and #ENW03MSD, collected from the left side of
the river during the 2000 OEPA sampling program). Seven of these eight chemicals were
also detected at their highest sediment concentration at this location. Consequently, it is
possible that the location sampled at RM 0.5 represents a hot spot for these chemicals.
Identification of possible hot spots in the Lower Ottawa River, based on the results of the
screening level HHRA, is discussed further in Section 5.4.
As shown in Table 5-1, estimated noncancer His for the RME child recreator scenario range
from 0.21 for Segment 4 to 0.58 for Segment 3. Estimated noncancer His for the RME adult
recreator scenario range from 0.026 for Segment 4 to 0.067 for Segment 3. In all cases,
estimated noncancer His are less than 1.0; consequently, noncancer hazards to people who
recreate in the Lower Ottawa River are not considered to be significant.
As shown in Table 5-10, estimated geometric mean blood lead concentrations in children
associated with exposure to lead in sediment are all significantly less than 10 ng/dL.
Consequently, hazards due to lead exposure are not considered to be significant.
5.3.2 Results for the Angler/ Fish Consumer Scenarios
As shown in Table 5-1, based on the upperbound sportfish consumption rate estimated for the
Lower Ottawa River (41 g/day or 60 8-ounce fish meals per year by adults and 18 g/day for
children), estimated lifetime excess cancer risks for the RME angler/fish consumer scenario
Printed on recycled paper
62
-------
range from 2 x 10"3 in Segments 2 and 4 to 3 * 10"5 in Segments 1 and 3. Estimated cancer
risks for surface water contact and fish consumption and total estimated risks for each river
segment are illustrated in Figure 5-4. As shown, total estimated lifetime excess cancer risks
for all four segments exceed U.S. EPA's acceptable risk range of 10'4 to 10"6 (U.S. EPA,
1991b) and the acceptable risk level for fish consumption in the Great Lakes established
under U.S. EPA's Great Lakes Initiative of 10"5 (U.S. EPA, 1995). As shown in Table 5-2
and illustrated in Figure 5-5, risks for all segments are dominated by consumption of PCBs in
fish, which contributes greater than 90% of the total estimated risks. In addition, estimated
risks for consumption of dieldrin in fish in Segment 4 exceed U.S. EPA's acceptable risk
range (i.e., they are greater than 1 * 10"4). Estimated cancer risks for the CT angler scenario
(based on a mean adult fish consumption rate of 7.3 g/day, or 10 8-ounce fish meals per year)
range from 2 * 10'4 for Segments 2 and 4 to 4 * 10*4 for Segment 1.
As shown in Table 5-1 and illustrated in Figure 5-6, estimated noncancer His for the RME
child and adult angler/ fish consumer scenarios range from 83 and 85, respectively, in
Segment 2, to 180 and 170, respectively, in Segment 1. These His all significantly exceed
1.0. As shown in Table 5-4, in all cases, the estimated His are dominated by Total PCBs,
contributing approximately 99% of the total estimated HI in each segment. Estimated His for
all other individual COIs in fish are less than 1.0. Estimated noncancer His for the CT angler
scenarios range from 15 for Segments 2 and 4 to 31 for Segment 1.
As indicated in Section 3.3.2, risks from consumption of fish containing COIs that were not
analyzed for in fish but were estimated from water concentrations and BAFs were not
incorporated into the above risk calculations. However, risks calculated based on these
estimated concentrations in fish are significant for N-nitroso-di-n-propylamine and
pentachlorophcnol (Table 5-11). As indicated in Section 3.3.2, since these chemicals were
detected infrequently in surface water, inclusion of these estimated fish tissue concentrations
in the risk evaluation was judged to be inappropriate due to significant uncertainty about flie
actual concentrations of these contaminants in fish.
5 J J Results of the Fish Co nsamption Advisory Evaluation
Estimated noncancer hazards from consumption of PCBs for the Great Lakes Sport Fish
Advisory Task Force fish consumption advisory categories are shown in Table 5*12.
Calculation details are presented in Appendix E. As shown, for all four river segments and all
fish consumption categories, estimated His exceed 1.0. As shown in Table 5-13 and
illustrated in Figure 5-7, none of the fish caught in the Lower Ottawa River and analyzed for
PCBs had total PCB concentrations within the concentration range acceptable for
"unrestricted consumption" (Category 1,0 to 0.05 ppm). In fact, one-third of the fish had
PCB concentrations warranting a "no consumption" rating (i.e., greater than 1.9 ppm). The
lowest detected total PCBs fish tissue concentration was 0.065 ppm.
Printed on recycfed paper
63
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5.4 Characterization of "Hot Spots"
As discussed in Section 5.3.1, several of the COls in surface water were measured in only one
area of the Lower Ottawa River (RM 0.5)concentrations measured at this location
contributed significantly to the surface water cancer risk calculations for the recreator
scenario. To assess the possible existence of hot spots in the Lower Ottawa River, sample-
specific cancer risks were calculated for the recreator scenario using measured concentrations
for each surface water and sediment sample. Tables 5-14 and 5-15 present the surface water
sample-specific risksTable 5-14 presents the cancer risks based on all COIs and Table 5-15
presents the cancer risks based on detected analytes only (i.e., cancer risk estimates do not
include COIs not detected at a specific location). Tables 5-16 and 5-17 present the sediment
sample-specific risksTable 5-16 presents the samples sorted by decreasing cancer risk and
Table 5-17 presents the samples sorted by river mile. The tables also show the contribution of
specific COIs to the total estimated cancer risk at each location.
Examination of these tables reveals the following:
Surface water COIs were detected at only five of the 21 surface water sample
locations. These locations were at RM 0.5, 2.5, and 4.8 (Tables 5-14 and 5-15).
The highest estimated cancer risks for surface water were estimated at RM 0.5 (Tables
5-14 and 5-15). Estimated cancer risks at this location, including nondetected COIs,
ranged from 2 * 10"4 to 3 * 10"5. Including only detected compounds, estimated
recreator cancer risks associated with these samples ranged from 2 x 10'4 to 1 * 10'6.
As described in Section 3.7, seven of the eight surface water COIs that were only
detected at RM 0.5 were also detected at their highest sediment concentrations at this
location.
The highest estimated cancer risks for sediment were for samples collected at RM 5.86
in the vicinity of the mouth of the former unnamed tributary (Sample #ADJ. UT
WALL 0-24;Tables 5-16 and 5-17). The estimated cancer risk at this location was 9 *
10 s. This location is associated with the highest-detected PCB sediment
concentrations (156 mg/kg total PCBs in the 0"-24" layer). However, examination of
data for nearby locations (e.g., Sample #UT DST R 0-24 at RM 5.85 and #OR 5.9 0-
24 at RM 5.9) suggests that these elevated PCB concentrations are extremely
localized, since total PCB concentrations at these locations are much lower (e.g.,
PCBs were not detected in Sample #UT DST R 0-24 and the total PCB concentration
in Sample #OR 5.9 0-24 was 0.28 mg/kg).
None of the sediment sample locations yielded estimated cancer risks for the recreator
scenario that exceeded U.S. EPA's acceptable risk range of 1 * 10"4 to 1 * 10"6.
Sample-specific risks were not calculated for fish because individual fish are assumed to
spend time in different parts of the river. Consequently, evaluation of cancer risks associated
with consumption of fish on a river segment by river segment basis is more appropriate.
Printed on recycled paper
64
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Figure 5-1. Estimated Cancer Risks for the RME Recreator Scenario,
Lower Ottawa River Human Health Risk Assessment
1.0E-02 t
1.0E-03 --
5 10E-°4
0)
o
c
re
O 1.0E-05 Ļ:
1.0E-06
1.0E-07
Segment 1
RM 0 to <3.2
Segment 2
RM 3.2 to <4.9
Segment 3
RM 4.9 to <6.5
III.
~ Sediment
~ Surface Water
~ Total
Unacceptable
Acceptable
Segment 4
RM 6.5 to 8.8
-------
Figure 5-2. Contribution of COIs to Total Estimated Cancer Risks for
Contact with Sediment, RME Recreator Scenario, Lower Ottawa River HHRA
100% -
90% -
illllll
-X;:
Segment 1
RM 0 to <3.2
Segment 2
RM 3.2 to <4.9
Segment 3
RM 4.9 to <6.5
Segment 4
RM 6.5 to 8.8
~ All others
Ļ Total PCBs
~ Arsenic
@ Benzo[a]pyrene equivalent
~ N-Nitroso-di-n-propylamine
-------
Figure 5-3. Contribution of COIs to Total Estimated Cancer Risks for
Contact with Surface Water, RME Recreator Scenario, Lower Ottawa River HHRA
100% T
v>
03
o
c
re
O
re
c
o
ts
3
JD
ki
c
o
o
80% - -
60% - -
40% -
20%
0%
Segment 1
RM 0 to <3.2
or
MHMi
Segment 2
RM 3.2 to <4.9
~ All others
~ Dieldrin
Q N-Nitroso-di-n-propylamine
Ļ Pentachlorophenol
Segment 3
RM 4.9 to <6.5
Segment 4
RM 6.5 to 8.8
-------
Figure 5-4. Estimated Cancer Risks for the RME Angler Scenario,
Lower Ottawa River Human Health Risk Assessment
1.0E-02 T
~ Surface Water
E Fish
~ Total
1.0E-03
Unacceptable
Ļ* 1.0E-04
(0
O
1.0E-05
1.0E-06
Acceptable
1.0E-07
Segment 1 Segment 2 Segment 3 Segment 4
RM 0 to <3.2 RM 3.2 to <4.9 RM 4.9 to <6.5 RM 6.5 to 8.8
-------
Figure 5-5. Contribution of COIs to Total Estimated Cancer Risks for
Fish Consumption, RME Angler Scenario, Lower Ottawa River HHRA
Segment 1 Segment 2 Segment 3 Segment 4
RM 0 to <3.2 RM 3.2 to <4.9 RM 4.9 to <6.5 RM 6.5 to 8.8
~ All others
~ Dieldrin
0 Total PCBs
-------
Figure 5-6. Estimated Noncancer Hazards for the RME Angler Scenario,
Lower Ottawa River Human Health Risk Assessment
1000 T-
0 Surface Water (adult)
E Fish (adult)
~ Total (adult)
Potentially unacceptable
Acceptable
Segment 1 Segment 2 Segment 3 Segment 4
RM 0 to <3.2 RM 3.2 to <4.9 RM 4.9 to <6.5 RM 6.5 to 8.8
-------
Figure 5-7. Total PCBs Concentrations in Fish Collected
from the Lower Ottawa River (ppm) vs. River Mile
~
.
~
. t
$
*
(
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f
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*
~
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i ~
1 >
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~ ~ ;
! ~
j < ~
} <
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~
) <
\ >
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> <
f >
1 ~ ;
~
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~
- Ģ ģ ' ' | ' 1 * | 1 1 * 1 |
~ ~ ~
~ ! * ~
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1 .1 1 ^ i 1 > * | ' ' ģ Ļ | l l l | * Ļ I
0123456789
Segment 1 Segment 2 Segment 3
River Mile
-------
Table 5-1. Summary of Cancer Risks and Noncancer Hazards
Lower Ottawa River Human Health Risk Assessment
Caicer Rbk Noncancer Hazard
PopnUtton RME CT Population RME CT
Segment 1 (RM 0 to <3.2)
Recreator 1E-04 2E-05 Adult Recreator 0.044 0.021
Child Recreator 0.32 O.Ov-4
Angler/ Fiģh Consumer 3E-03 4E-04 Adult Angler/ Fish Consumer 170 31
Child Angler/ Fish Consumer 180 31
Segment 2 (RM 3.2 to <4.9)
Recreator 5E-05 8E-06 Adult Recreator 0.029 0 014
Child Recreator 0.22 0.0X1
Angler/Fish Consumer 2E-03 2E-04 Adult Angler/Fish Consumer 83 15
Child Angler/ Fish Consumer 85 15
Segment 3 (RM 4.9 to <6.5)
Recreator 1E-04 2E-05 Adult Recreator 0 067 0 017
Child Recreator 0.58 0.2?
Angler/Fish Consumer 3E-03 3E-04 Adult Angler/ Fish Consumer 170 Kj
Child Angler/ Fish Consumer 180 3(j
Segment 4 (RM 6i to 8.8)
Recreator 6E-0S 1E-05 Adult Recreator 0.026 0.013
Child Recreator 0.21 0.077
Angler/ Fish Consumer 2E-03 2E-04 Adult Angler/ Fish Consumer 87 15
Child Angler/ Fish Consumer 89 15
-------
Table 5-2. Summary of Chemical- and Media- Specific Cancer Risk*.
Reasonable Maximum Exposure Scenario, Lower Ottawa River HHRA
Exposure Medium
Exposure
V. of
Sediment
% of
Surface
% ol
% of
Pathways
Fish
Total
('brmJr*) of Interest
Total
Water
Total
Total
Total
Segment 1 (RM 0 to <3.2)
Rccreator
4,4'-D0T (p,p'-)
3.6E-07
<1%
...
3.6E-07
<1%
Aldrin
9.9E-08
1.3%
4.3E-07
<1%
...
5.3E-0?
(bjnuoranlhen<
1.IE-07
1.4%
...
Ļ
...
l.lE-07
Beiuo(k)fluor%nthene
I.9E-08
<1%
...
...
I.9E-08
<}%
bģ{?-El2>ylbŖxy))pbthalate
1.4E-08
<1%
~
_
I.4E-08
<1%
Dibenzja,bjanthracĢne
1.1E-06
13.4%
...
...
1,1E-06
<1%
Dieldrin
I.8E-07
2.3%
3.2E-06
2.K%
...
3,4Ŗ-06
Hep?achJ6
<1%
5.6E-06
<1%
4,4'-DDE (p,p*-J
1-4E-05
<1%
1.4E-05
<1%
4,4*-DDT (p,p'-)
1.6E-06
<1%
1.7E-05
<1%
1.8E-05
<1%
Aldria
2.3E-07
<1%
2.1E-05
<1%
2.2E-05
<1%
alpha-Cblordane
I.4E-05
<1%
1.4E-05
<1%
Araenic
2.7E-07
<1%
1.9E-05
<1%
1.9E-0S
<1%
Chlordaae
--
1.4B-05
<1%
1.4E-05
<1%
Didkfria
4.7B-06
2.8%
8.1E-05
2.6%
8.6B-05
2.6%
ganama-ClUordane
1.2E-05
<1%
1.2E-05
<1%
N-Ni&ĢCHŖ-Q-propyluaim
5.IB-05
30.1%
5.1E-05
1.5%
Peatachlorophaool
1.1B-W
65.2%
1.1 E-04
3.2%
Total PCBi
3.0E-03
93.8%
3.0B-03
89.1%
tr*aa-Nocģchlor
4.4B-07
<1%
4.4B-07
<1%
0.0E+O0
I.7E-04
3.2E43
3.4E-03
Secneit 2 (RM 3.2 to <4.9)
Recrifttor
4,4-DDT (p,p*-)
2.1E-07
<1%
2.1B-07
<1%
Aldrin
2.2E-07
1.7%
9.3B-08
<1%
3.2E-07
<1%
ArĢĢoic
3.8E-06
28.7%
1.2E-06
3.4%
-
4.9E-06
10.3%
Beaxo(ģ|*iitiir%ceae
2.3B-07
1.8%
2.3E-07
<1%
Benzo(a)pytaa*
2.QB-06
15.1%
~
2.0E-06
4.1%
Betupfb ] ftuoriDtfa en e
3.4E-01
2.6%
3.4B-07
<1%
Benv>(k IHuortathjae
1.9E-08
<1%
1.9E-06
<1%
bL*H-BthylhĢxyl)phtfitl*tĢ
7.4B-08
7.4B-0S
<1%
DibĢii2(*Jk]a&thracĢD*
1.6B-06
12.1%
L6B-06
3.3%
Dieldria
1.4B-07
1.1%
6.3 Ŗ-07
1.8%
7.7B-07
1.6%
Heptachlor
-
5.1B-08
<1%
5.1B-0S
<1%
HepUchlor epoxide
1.9B-Q7
1.4%
1.9B-07
<1%
IndĢ
-------
Table 5-2. Summary ģf Chemical- and Media- Specific Cancer Risks.
Reasonable Maximum Exposure Scenario. Lower Ottawa River HHRA
Kipo)urt Medium
Kxpoitirt
% or
% of
Surface
% of
% of
Pathways
Sedtmrnt
Hsh
Total
Chemical of Interest
Total
Water
Total
Total
Total
Angler
4,4'-DDD(p,p-)
...
2.SE-06
--1%
2.SK-06
< 1%
4,4,-DDE(p,p'-)
...
...
91E-06
<1%
9.1E-06
<1%
4,4' DDT
-------
Table 5-2. Summary of Chemical- and Media- Specific Cancer Risks,
Reasonable Maximum Exposure Scenario. Lower Ottawa River HHR\
Chemical of interest
Eioosure
Medium
Exposure
% of
%of
Surface
% of
Fist)
% of
Pathway*
Total
Sediment
Total
Total
Total
Water
Total
2.1E-07
<1%
2. ] E-07
<1%
l.SE-08
M%
9.3E-OS
*1%
...
I.lE-07
< l°i
2.XE-0Ģ
!0.9%
3.5E-07
1.0%
...
3.1 Ŗ-06
V3%
6.IE-07
2.4%
6.1E-07
1.0%
6.3E-06
24.9%
...
6.3E-06
10.7%
7.9E-07
3.1%
...
7.9E-07
1.3%
7.9E-08
<1%
...
7.9E-0S
<1%
1.5E-06
5.8%
1.5E-06
2.5%
2-3E-06
9.0%
...
2.3E-06
3.8%
3-3E-08
<1%
6.3E-07
5.1E-08
1.9%
<1%
...
6.6E-0?
5.1E-0S
1.1%
<1%
1.3E-08
<1%
I.3E-08
<1%
5-5E-07
2.2%
...
,V5E-07
cl%
8.9E-06
34.6%
1.3E-05
38.8%
...
2.2E-05
37.0%
I.7E-06
6.6%
...
I.7E-06
2.8%
...
1.9E-05
57.2%
1.9E-05
32 7%
2.5E-05
3.4E-0S
0.0E+00
5.9E-M
5.6E-06
<1%
5.6E-06
<1%
1.1E-05
<1%
1.1E-05
<1%
3.8E-07
<1%
1.7E-05
1.0%
1.8E-05
1.0%
4.9E-08
<1%
2.1E-05
1.3%
2.1E-05
1.2%
2.7E-06
<1%
2.7E-06
<1%
1.5E-07
<1%
1.1E-05
<1%
1.1E-05
<1%
.
6.8E-06
<1%
4,4'-DDE (p.p'->
4,4'-DDT (p.p'-)
Aldrin
alpha-Chlordane
Arteaic
Chlotdane
Dieldrin
gamma-CWordaae
N-NitroĢo-di-n-propylamixn
Pentichlorophenol
Toul PCB#
traiu-Nonachlor
(Total)
Ptg#3 of 3
-------
'I able 5-3. Summary iģf Chemical- and Media- Specific Cancer Kiskv
Central Tendency Scenario. I.nwer Ottawa River HHRA
Kxnosur*
Medium
Kiposure
Sediment
% of
Surface
% of
Fish
% of
Pathways
% of
Total
Chemical of Interest
Total
Water
Toul
Toul
Total
Segment 1 (KM 0 to <3.2)
Recreator
4.4'-DDT (p.p'-)
...
1.2E-07
<1%
...
...
1.2F-07
Aldrin
2.5E-03
1.2%
6.0E-0S
Ļ 1 %
S 6E-0X
< 1%
Arsenic
5J.7E-07
42.7%
X.XH-OS
<1%
9.6E-07
5.3%
Beruo[a]anthracene
2.0E-0S
<1%
...
2.0E-08
< 1%
Benzo(a]pyrene
2.4E-07
11.7%
...
2 4E-07
1.3%
Benzofbjfluoranthene
2.6E-0IJ
1.3%
...
...
2.6E-OS
<1%
Benzofkjfluoranthene
4.6E-09
<1%
...
...
...
4.6E-09
<1%
bis(2-Ethylhexyl)phthalate
3.2E-09
<1%
...
3.2E-09
<1%
Dibenzf a,h (anthracene
2.5E-07
12.5%
...
...
2.5E-07
1.4%
Dieldrin
4.6E-0K
2.3%
4.6E-07
2.S%
5.0E-07
2 X%
Heptachlor
...
3.0E-0S
<1%
...
-
3.0E-08
< 1 %
Heptachlor epoxide
1.5E-08
<1%
...
...
1.5E-08
<1%
Indenoll^^-cdtpyrene
1.8E-08
<1%
...
...
l.SE-08
<1%
N-Nilroso-di-n-propylaraine
3.6E-07
17.7%
6.7E-06
41.9%
...
...
7.1E-06
39.2%
Total PCBs
1.5E-07
7.5%
...
...
1.5E-07
<1%
Pentachlorophenol
...
...
8.6E-06
53.4%
...
8.6E-06
47.3%
(Total)
2.0E-06
1.6E-05
O.OE+OO
l.SE-05
Aatler
4,4'-DDD (p.p'-)
...
5.9E-07
<1%
5.9E-07
<1%
4,4'-DDE (p,p'-)
...
1.4E-06
<1%
1.4E-06
<1%
4,4-DDT (p,p'-)
9.3E-07
<1%
l.SE-06
<1%
2.7E-06
<1%
Aldrin
_
1.4E-07
<1%
2.2E-06
<1%
2.4E-06
<1%
alpha-Chlordan*
_
1.7E-07
<1%
1.7E-07
<1%
Arsenic
1.6E-07
<1%
2.0E-06
<1%
2.1E-06
<1%
Chlordane
...
l.SE-06
<1%
1.5E-06
<1%.
Dieldrin
2 8E-06
2.8%
8.6E-06
2.6%
1.1E-05
2.6%
gamma-Chlordaoe
-
1.2E-06
<1%
1.2E-06
<1%
N-Nitroeo-di-n-propylaroine
3.1E-05
30.8%
3.1E-05
7.1%
Pentachlorophenol
6.5E-05
65.2%
6.5E-05
15.0%
Total PCBi
_
3.1E-04
94.2%
3.1E-04
72.6%
trans-Nooachlor
4.6E-08
<1%
4.6E-08
<1%
(Total)
O.OE+tO
9.9E-05
3.3E-04
4.3E-04
Segmcat 2 (KM 3.2 to <4.9)
Retrtator
4,4'-DDT (p.p'*)
. 3.0E-08
<1%
3.0E-08
<1%
Aldrin
5.7E-08
1.7%
1.3E-08
<1%
7.0E-08
<1%
Arsenic
l.tE-Oti
31.3%
1.6E-07
3.3%
1.2E-06
14.6%
Benzofa]aathraceoe
5.7E-08
1.7%
-
-
-
5.7E-08
<1%
iknzo(a]pyrene
4.8E-07
14.2%
...
4.SE-07
5.7%
Benzo[b ] fluorantheo e
8.2E-08
2.4%
...
S.2E-0S
<1%
Benzopc]fluoranthene
4.5E-09
<1%
4.5E-09
<1%
b U(2 - Ethy lhexy l)phthalatc
1.7E-08
<1%
1.7E-08
<1%
Dib<&4>Ji)i&tlu*cae
3.8E-07
11.4%
3.8B-07
4.6%
Dieldrin
3.6E-08
1.1%
9.0E-08
1.8%
1.3E-07
1.5%
Heptachlor
~
-
7.3E-09
<1%
-
7.3E-09
<1%
Heptachlor epoxide
5.0E-08
1.5%
_
5.0E-08
<1%
Indenof 1J, 3
-------
Table 5-3. Summary of Chemical- and Media- Specific Cancer Risks.
Central Tendency Scenario, Lower Ottawa River HHR.V
Chemical of Interest
Sediment
%of
Total
Kxooiure Medium
Surface % of
Water ToUf
Fish
% of
TolaJ
Exposure
Pathways
Total
% of
Total
Aogjff
4,4'-DDD (p.p'-)
...
...
...
2.9E-07
< 1%
2.9E-07
M%
4,4,-I)DE{p,p'.)
...
...
9.6E-07
<1%
9.6E-07
<\%
4,4'-DDT (p.p*-)
...
1.4E-07
<1%
6 4F.-07
<1%
7.8E-07
<1%
Altirin
...
1.8E-08
<1%
2.2E-06
1.4%
2.3E-06
1.3%
alpha-Chlordane
...
...
...
4.6E-08
<1%
4.6E-08
<1%
Arsenic
...
1.9E-07
<1%
1.8E-06
1.1%
2.0E-06
1.1%
Chlordane
...
...
6.OE-07
<\%
6.0E-07
<1%
Dieldritt
...
...
3.5E-Q7
1.8%
2.2E-06
1.4%
2.5E-06
1.4%
gam tna-ChJordaae
...
...
6.0E-07
<1%
6.0E-07
<1%
N-Nitroso-di-n-propylaraine
...
5.3E-06
27.6%
...
5.3E-06
3.0%
Pentachiorophenol
...
...
1.3E-05
68.7%
...
1.3E-05
7.4%
Total PCBs
...
1.5E-04
94.1%
1.5E-04
84.0%
trans-N'ooachlor
...
4.6E-08
<1%
4.6E-08
<1%
(Total)
O.OE+OO
1.9E-05
1.6E-04
1.8E-04
Segment 3 (RM 4.9 to<6.5)
Ricrtator
4,4'-DDT (p,p'-)
Aldrio
Arsenic
Benzo( a)anthracene
Be&zo( ajpyreoe
Ben2o[b]nuoraathene
Benzo[k]fluoraatbene
bii(2-Ethylhexy\)phlhaUte
Dibe&4t,b]uthnceae
Dieldrio
Heptacblor
Heptechlor epoxide
lndeno(l,2,3-Ģl|pyreiie
N-Nitroto-di-n-propyUmme
ToUl PCBs
PenUchloropbenol
(Total)
...
3.0E-08
<1%
...
...
3.0E-08
<1%
6.8E-08
<1%
I.3E-08
<1%
8.1E-08
<1%
8.4E-07
4.6%
4.9E-Q8
1.0%
...
8.9E-07
3.9%
1.6E-07
<1%
...
1.6E-07
<1%
1.9E-06
10.5%
_
1.9E-06
8.3%
2.5E-07
1.4%
...
2.5E-07
1.1%
2.2E-08
<1%
2.2E-08
<1%
3.4B-07
l.Ģ%
3.4E-07
1.5%
4.1E-06
22.7%
_
4.1E-06
17.9%
2.0E-08
<1%
9.0E-08
1.9%
1.1E-07
<1%
7.3E-09
<1%
7.3E-09
<1%
2.5E-08
<1%
2.5B-08
<1%
1.7E-07
<1%
_
1.7B-07
<1%
4.4B-06
23.8%
1.9E-06
38.5%
6.2B-06
26.9%
6.0B-M
32.7%
6.0E-06
25.9%
2.8E-06
57.6%
2. IB-06
12.0%
1.IE-OS
4.SE46
6.0E+M
ZJE-65
3.3E-07
<1%
3.3E-07
<1%
_
7.3E-07
<1%
7.3E-07
<1%
_
1.4E-07
<1%
3.7E-07
<1%
5.1E-07
<1%
1.8E-08
<1%
5.3E-06
1.6%
5.3E-06
1.5%
_
5.2E-08
Aldrio
alpba-Chlordane
Arsenic
Chlordane
DieUtrid
gaaate-Chlorduie
N-NiCroeo-di-fl-propyltaise
PeaUchtorophenol
Total PCBĢ
trans-Noaichlor
-------
Table 5-3. Summary of Chemical- and Media- Specific Cancer Risks,
Central Tendency Scenario. Lower Ottawa River HHRA
i'hemlcai of Interest
Sediment
%
T<
of
ul
K*nmure Medium
Surface % of
Water Tout
Fish
% of
TuUl
Exposure
Pathway*
T iģUl
% of
Total
3.0E-0S
3.0E-0S
<1%
4.6K-09
1.3E-0S
<}\
l.Sfc-08
< 1 %
7.^E-07
'o
4.9fc-0S
I 0%
...
Ĩ.lt.-Q7
7.4%
1.5E-07
0
...
1.5K-07
1.3%
l-SE-06
/B
...
...
l.SE-06
13.8%
I.9E-07
/*
...
1.9E-07
1.7%
1.9E-0S
I.9E-0X
%
...
3.9E-06
35.5%
4.8E-07
/
4.8E-07
4.3%
...
2.8E-06
57.6%
2.8E-06
25.1%
6.3E-06
4.8E-06
O.OE+OO
1.IE-OS
-
...
5.SE-07
1.2E-W
<1%
<1%
5.8E-07
1.2E-06
<1%
<1%
1.4E-07
Aldrtn
Arsenic
Benzo( a (anthracene
Benz,o|a)pyiene
Benzofbjfluoranthene
Befi2o(k]fluorantbene
bis<2-Elhylhexyl)phthalate
Diben4a,h)anfhracenĢ
Dieidrin
Heptachlor
Heptachlor epoxide
Indeno( 1,2,3-cd)pyrene
N-Nitroso-di-a-ptopytarame
Total PCBs
Pentachlorophenol
(Total)
Aogkr
4,4'-DDD (p,p'-)
4,4-DDE (p.p-)
4,4'-DDT (p,p'-)
Aldrin
alpha-Chlordane
ArMoic
Chlordane
Dieldrin
gamma-CUordane
N-Nitro40-di-n-propylajnme
PĢnt ģch 1 orop b enol
Total PCBĢ
trazu-Noeachlor
(Total)
Page 3 of 3
-------
1 able 5-4. Summary of Chemical- and Media- Specific Nuncancer Hazards.
Reasonable Maximum Exposure Scenario. Lower Ottawa River HHRA
Exposure Medium
Exposure
% of
Total
Sediment
%of
Surface
% of
Kith
% of
Pathways
Chemical of Interest
Total
Water
Total
Total
Total
Segment 1 (RM 0 to <3.2)
Adult Rccreator
2-Chlorophenol
5.7E-C3
19.1%
...
...
5.7E-03
n.o%
Aldrm
1.4E-04
1.0%
7.0E-04
2.4%
...
9.4E-04
) .9%
Arsenic
3.5E-03
25.6%
I.2E-03
4.0%
...
4.7E-03
10.9%
Atrazine
8.6E-05
<\%
...
S.6E-05
< 1%
bis(2-Elby)hexyJ)pbthalate
5.2E-05
<1%
...
...
5.2E-05
<1%
Dieldrin
1.7E-04
1.2%
2.8E-03
9.4%
...
...
3.0E-03
6.S%
Di-n-butylphthalate
...
3.4E-05
<1%
...
3.4E-05
<1%
gamma-Benzene bexachloride
1.2E-04
<1%
1.2B-04
<1%
lieptachlor
7.0E-05
<1%
--
7.0E-05
<\%
Heptacblor epoxide
3.2E-04
2.3%
...
3.2E-04
M%
PCBAroclor 1016
2.5E-05
<1%
...
2.5E-05
<1%
PCB Aroclor 1254
1.0E-04
<1%
...
1.0E-04
<1%
Pentacblorophenol
...
UE-02
36.3%
...
...
1.1E-02
24 7%
Thallium
9.5E-03
68.6%
8.3E-03
27.9%
...
1.8E-02
40.3%
(TotaJ)
0.014
0.030
0.0
0.044
Child Recreator
2-ChIorophenol
...
3-8E-02
20.1%
...
...
3.8E-02
11.9%
Aldrio
8.5E-04
<1%
3.6E-03
1.9%
...
...
4.5E-03
J.4%
Arsenic
3.2E-02
24.8%
6.0E-03
3,2%
_
...
3.8E-02
12.0%
Atraane
0.0E+00
<1%
5.2E-04
<1%
...
5.2E-04
<1%
biĢ(2-Etbylfcexyl)phtbalate
2.0E-04
<1%
2.0E-04
<1%
Dieldrin
1.0E-03
<1%
1.8E-02
9.5%
1.9E-02
5.9%
Di-n-butylphthalate
2.2 E-04
<1%
2.2E-04
<1%
gamma-Beazane bexachloride
_
7.1E-04
<1%
7.1E-04
<1%
Heptachlor
4.2E-04
<1%
~
4.2E-04
<1%
Heptacblor epoxide
2.2B-03
1.7%
2.2E-03
<1%
PCB Aroclor 1016
2.5E-04
<1%
2.5E-04
<1%
PCBAroclor 1254
9.8E-04
<1%
9.86-04
<1%
Pentachlorophenol
7.5E-02
39.9%
7.5E-02
23.6%
Th alii as
9.3E-02
71.OH
4.6B-02
24.3H
1.4B-01
43.5%
(Total)
0.13
0.19
M
0.32
Advtt Aa(kr
2-Chlorophenol
2.4E-02
23.0%
2.4B-02
<1%
4,4'-DDT(p,p'-)
2.3E-0I
<1%
2.3E-01
<1%
Aldrin
_
7.8E-04
<1%
9.6B-02
<1%
9.7E-02
<1%
alpha-Chlordane
2.1B-02
<1%
2.1E-02
<1%
Arsenic
1.1E-03
1.0%
9.6E-02
<1%
9.8E-02
<1%
Atraane
2.5E-04
<1%
2.5B-04
<1%
Chlordane
1.9E-01
<1%
1.9E-01
<1%
Dieldrin
1.0B-02
9.8%
2.3E-01
<1%
2.5E-01
<1%
Di-n-butylphthalate
-
1.3 B-04
<1%
-
1.3E-04
<1%
ga&m*-BcD2ģa* hexachlaride
3.4B-04
<1%
3.4B-04
<1%
gaaa*OilordaD*
1.5B-01
<1%
1.5B-01
<1%
Pentacblorophenol
5.3E-02
S0.1H
5.3B-02
<1%
ThaUius
1.5E-02
14.7%
I.5E-02
<1%
Total PCBa
1.7S+02
99.4%
1.7B+02
99.4%
tnuu-Nooschlor
-
5.IB-03
<1%
5.8B-03
<1%
(Total)
04
0.11
173
174
Pige 1 oft
-------
Table S-4. Summary of Chemical- and Media- Specific Noncancer Hazards.
Reasonable Maximum Exposure Scenario, Lower Ottawa RiverHMRA
Chemical of Interesi
Sediment
Vo Of
Total
Kxpoiure Medium
Surface */Ģ of
Water Total
Flih
% of
Total
Kxposure
Pathways
Total
% of
Total
Child Angler
2-Chlorophenol
4.3 E-02
40.5%
...
4.3E-02
-------
Table 5-4. Summary of Chemical- and Media- Specific Noncancer Hazards,
Reasonable Maximum Exposure Scenario, Lower Ottawa River HHRA
F.tDosure Medium
Ktposure
% or
Surface
% of
Sediment
% of
Fish
% of
Pathways
Total
Chemical of Interest
Total
Water
Total
Total
Total
Adult Angler
2-Chloropbenol
...
4.2E-03
11.6%
...
4.2E-03
< 1%
4,4'-DOT (p,p'-)
...
...
S.2E-02
^1%
8.2E-02
<1%
Aldrin
I.7F-04
<1%
9.6E-02
<1%
9.7E-02
<\%
alpha-Chlordane
...
...
5.8F.-03
<1%
5.8E-03
<) %
Arsenic
...
2.0E-03
5.5%
S 7E-02
<1%
3.9E-02
<1%
Atrazjne
I.4E-G4
<1%
1.4E-04
<1%
Chlordane
...
...
7.6E-02
M%
7.6E-02
<1%
Oieldrin
2.0E-03
5.6%
6.0E-02
<1%
6.2E-02
<1%
Di-n-butylphthalate
...
1.0E-04
<1%
1.0E-04
<1%
gamma-Benzene hexachloride
...
7.6E-05
<1%
7.6E-05
<1%
gamma-Chlordane
...
...
7.6E-02
<1%
7.6E-02
Pentachlorophenol
1.7E-02
47.8%
...
I.7E-02
<1*4
Thaihun
...
1.0E-02
28.1%
...
1.0E-02
<Ļ]%
Total PCBs
...
--
...
8.JE+0I
99.4%
S.3E+01
99.4%
trans-Nooachlor
~
-
...
5.8E-03
<1%
V8E-03
<1%
(Totai)
0.0
0.036
83
93
Child Ai[ler
2-ChIoropbeno!
~
...
7.4E-03
11.6%
...
...
7.4E-01
<1%
4,4'-DDT (p,p'-)
...
8.4E-02
<1%
8.4E-02
<1%
Aldrin
3.0E-04
<1%
9.9E-02
<1%
9.9E-02
<1%
alpha-Chlordane
...
5.9E-03
<1%
5.9E-03
<1%
Arsenic
3.5E-03
5.5%
8.9E-02
<1%
9.3E-02
<1%
Atrazine
2.4E-04
<1%
...
2.4E-04
<1%
Chlordane
_
7.8B-02
<1%
7.8E-02
<1%
Dieldrin
3.6E-03
5.6%
6.2B-02
<1%
6.5E-02
<1%
Di-o-butyiphthalate
-
l.SE-04
<1%
_
-
1.8E-04
<1%
gamma-Benzene hexachloride
1.3E-04
<1%
I.3E-04
<1%
gamma-Chlordane
7.8E-02
<1%
7.8E-02
<1%
PenUcbloropbenol
3.0E-02
47.8%
3.0B-02
<1%
Tballiujr
l.SB-02
28.1%
--
1.8E-02
<1%
TotolPCBe
8.5E+01
99.4%
8.5B+01
99.3%
trani-Nooacblor
-
-
5.9B-03
<1%
5.9E-03
<1%
(TolĢl)
0.0
0.063
IS
>S
Segueat 3 (RM 4.9 to <6.5)
Adult Recreator
2-Chloropbenol
9.8E-04
8.6%
9.8E-Q4
1.5%
Aldrin
3.9B-04
<1%
l.SE-04
1.3%
5.4B-04
<1%
ArMnic
3.4E-03
6.1%
6.6E-04
5.8%
4.1B-03
6.1%
Atrazine
4.SE-0S
<1%
4.8E-05
<1%
b iģ(2 - Ethy lhexy l)phthal ate
5.4B-03
9.7%
-
5.4E-03
8.1%
Ditldria
7.3B-05
<1%
5.5E-04
4.8%
--
6.2B-04
<1%
Di-o-batylphtiia/ate
2.8B-05
<1%
-
-
2.8B-05
<1%
gamma-Benzene bexĢchloridģ
2.7E-05
<1%
2.7B-05
<1%
Heptechlor
1.7E-05
<1%
1.7B-05
<1%
HepUchlor epoxide
5.1B-04
<1%
5.1B-04
<1%
PCS Aroclor 1016
3.6B-02
65.3%
3.6B-02
54.2%
PCB Aroclor 1254
2.5B-03
4.4%
2.5E-03
3.7%
Pentachlorophenol
3.5E-03
30.8%
3.5B-03
5.2%
Thalliuir
7.1B-03
12.7%
5.4E-03
47.5%
1.2E-02
18.6%
-------
Table 5-4. Summary of Chemical- and Media- Specific Nuncancer Hazards.
Reasonable Maximum Exposure Scenario. Lower Ottawa River HHKA
Sediment
Chemical of Interest
% of
Total
jvy^osureJ^fiHurn
Surface */ of
Wat*r Total
FlĢh
% of
Total
Kiposure
Pathways
Total
% of
Total
Child Rrcreator
2-Chlorophenol
-
6.6E-03
9.5%
6.6H-03
1.1%
Aldrin
2.3E-03
7.9E-04
1.1%
3.IE-03
'Ļ I 0 o
Arsenic
3. 1 li-02
6.2%
3.4E-03
4.S%
...
3.5K-02
6.0%
Atrazine
...
2.9E-04
<1%
2.91:-04
: 1 %
bis(2-f:ihyih?xy])pMh2lo/a
Dieldrm
4.4E-04
<1%
3.5E-03
5.1%
...
...
4.0E-03
<1%
Di-n-butylphthalate
l.SE-04
<1%
l.SE-04
<1%
gamma-Benzene hexachloride
...
1.6E-04
<1%
...
...
1.6E-04
1 %
Heptachlor
...
1.0E-04
<1%
...
1.0E-04
<1%
Heptachlor epoxide
3.6F-03
<1%
...
...
3.6E-03
<1%
PCB Aroclor 1016
3.6E-01
70.0%
...
3.6E-01
61.6%
PCB Aroclor 1254
2.4E-02
4.8%
...
...
2.4E-02
4.2%
Pentachloropheno!
...
...
2.4E-02
3 5.3%
2.4E-02
4.2%
Thalliunr
7.0E-02
13.7%
3.0E-02
43.1%
...
...
1.0fc-01
1 7.2%
(Total)
0.51
0.069
0.0
0.51
Adult Angler
2-Chlorophenol
...
4.2E-03
12.1%
4.2E-03
<1%
4,4'-DDT
...
4.9E-02
<1%
4.9E-02
<1%
Aldrin
...
3.0E-04
<1%
2.3E-01
<1%
2.3B-01
<1%
alpha-Chlordane
_
6.7E-03
<1%
6.7E-03
<1%
Arsenic
1.0E-03
1.7%
5.4E-02
<1%
5.5B-02
<1%
Atrazine
2.4E-04
<1%
2.4B-04
<1%
Chlordane
_
2.5E-01
<]%
2.5E-01
<1%
Dieldrin
...
3.6E-03
5.9%
5.9E-02
<1%
6.3E-02
<1%
Di-n-butylphthalate
-
-
1.8E-04
<1%
1.8E-04
<1V.
gamma* Benzene hexachloride
1.3E-04
<1%
1.3B-04
<1%
gam m*Chlor dace
1.9E-01
<1%
1.9B-01
<1%
Pentachlorophenol
3.0E-02
49.7%
...
3.0B-02
<1H
Thalliuir
1.8E-02
29.2%
1.8B-02
<1%
Total PCBi
1.7B+02
99.5%
1.7E+02
99.5%
trani-Nonachlor
5.9E-03
<1%
5.9B-03
<1%
(Total)
ao
0.041
175
175
Pag*4 of <
-------
Table 5-4. Summary of Chemical- and Media- Specific Noncancer Hazards.
Reasonable Maximum Exposure Scenario. Lower Ottawa River HHRA
F.tDoiure Medium
Ksposure
% of
Total
Sediment
V. of
Surface
% of
Fish
% of
Pathways
Chemical oflnteresl
Total
Watrr
Total
Total
Total
Segment 4 (KM 6.5 to H.8)
Adult Recreator
2-Chlorophenol
...
V.SE-04
S.6%
...
9.SE-04
3 S%
Aldrm
2.6E-05
< 1%
1.5E-04
1.3%
l.SE-04
< 1 %
Arsenic
3.2E-03
21.6%
6 6E-04
5.8%
...
3.SE-03
14.7%
Atrj/ine
...
4.SE-05
<1%
4.iiE-05
Ģ:1 %
bis(2-Ethy lhexyl)phthaiate
l.SE-04
1.2%
...
I.SE-04
< 1%
Dteldrin
3.1E-05
<-\%
5.5E-04
4.3%
5.SE-04
2.2%
Di-n-buty]phthalate
2.SE-05
^1%
...
2.SE-05
<1%
gamma-Benzene hexachloride
...
...
2.7E-05
<1%
...
2.7E-05
<1%
Heptachlor
...
1.7E-05
<1%
...
1.7E-05
< %
Heptachlor epoxide
6.8E-05
<1%
...
6.SE-05
<1%
PCB Aroclor 1016
1.9E-03
13.1%
...
...
1.9E-03
7.4%
PCB Aroclor 1254
5.0E-03
33.8%
...
...
...
S OE-03
1 ^ 0%
Pentachlorophenol
...
3.5E-03
30.S%
...
3.5fc-03
13.4%
Thalhuir
4.3E-03
29.4%
5.4E-03
47.5%
...
9.7E-03
37.3%
(Total)
0.01S
0.011
0.0
0.026
Child Recreator
2-Chtorophenol
...
6.6E-03
9.5%
...
6.6E-03
3.1%
Aldrin
1.6E-04
<1%
7.9E-04
1.1%
...
...
9.4E-04
<1%
Arsenic
2.9E-02
20.7%
3.4E-03
4.8%
...
3.2E-02
15.4%
Atrazine
...
...
2.9E-04
<1%
...
2.9E-04
<1%
bU(2-Etbylhexyl)phthalate
7.2E-04
<1%
...
7.2E-04
<1%
Dieldrin
1.8E-04
<1%
3.5E-03
5.1%
3.7E-03
1.8%
Di-n-butylpbthalate
1.8E-04
<1%
1.8E-04
<1%
gamma-Benzene hexachloride
1.6E-04
<1%
...
1.6E-04
<1%
Heptachlor
1.0E-04
<1%
1.0E-04
<1%
Heptachlor epoxide
4.8E-04
<1%
4.8E-04
<1%
PCB Aroclor 1016
1.9E-02
13.5%
--
1.9E-02
9.0%
PCB Aroclor 1254
4.8E-02
34.6%
4.8E-02
23.1%
Pentachlorophenol
2.4E-02
35.3%
2.4E-02
11.7%
Thalbuir
4.2E-02
30.2%
3.0E-02
43.1%
7.2B-02
34.5%
(ToĢģl)
0.14
0.069
0.0
0.21
Adult Aagler
2-Chlorophenol
4.2E-03
12.1%
4.2E-03
<1%
4,4'-DDT (p,p'.)
2.4E-01
<1%
2.4E-01
<1%
Aldrin
_
1.7B-04
<1%
9.7E-02
<1%
9.7E-02
<1%
alpha-Chlordane
_
3.6E-02
<1%
3.6E-02
<1%
Arsenic
5.9E-04
1.7%
5.5E-02
<1%
5.5E-02
<1%
Atrazine
1.4E-04
<1%
...
1.4E-04
<1%
Chlordane
8.9E-02
<1%
8.9E-02
<1%
Dielfein
2.0E-03
5.9%
3.9E-01
<1%
3.9E-01
<1%
Di-n-butylphthalate
1.0E-04
<1%
-
1.0E-04
<1%
gamma-Benzene hexachloride
7.6E-05
<1%
7.6E-05
<1%
gamma-Chlordane
_
4.1B-02
<1%
4.IB-02
<1%
Pentachlorophenol
1.7E-02
49.7%
I.7B-02
<1%
Thallitur
_
1.0E-02
29.2%
1.0B-02
<1%
ToUl PCB*
_
S.6B+01
9*.9%
9.6B+01
96.5%
trans-Non&cblor
_
-
1.2E-02
<1%
I.2E-02
<1%
(Total)
ao
0.035
7
7
Pag* 5 of 6
-------
Fable 5-4. Summary of Chemical- and Media- Specific Noncancer Hazards.
Reasonable Maximum Kxposure Scenario. Lower Ottawa River HHRA
Kxr>o*ure
Medium
Kiposure
% of
V. of
Surface
% of
Klsh
% of
Pathways
Sediment
Water
Total
Tulal
Total
Total
Total
rhtmlral of Interest
Child Angler
2-ChlorophenoJ
7.4E-03
1 2.1 %
...
7.4E-01
-------
Table 5-5. Summary of Chemical- and Media- Specific .Nimcancer Hazards.
Central Tendency Scenario, Lower Ottawa River HHRA
Exoosurt Medium
Exposure
% of
Sedlmeni
% of
Surface
% of
% of
Path way j
Flfb
Total
Chemical of loterest
Total
Water
Total
Total
Total
Segment 1 (RM 0 to <3.2)
Adult Recreator
2-Chlorophenol
...
...
2.3E-03
21.0%
...
2.8E-03
13.1%
Aldrin
7.9E-05
<1%
2.1E-04
1.5%
...
2.8E-04
1.3%
Arsenic
2.1E-03
:5.5%
3.3E-04
2.5%
...
2.4E-03
11.}%
Atrazine
3.5E-05
<1%
...
3.5E-05
< 1%
bis(2-Ethylhexyl)phthalate
2.8E-05
<1%
...
2.8E-05
<1%
Dieldrin
9.3E-05
1.1%
1.3E-03
9.6%
...
1.4E-03
6.4%
Di-n-butylphthalate
...
_
1.6E-05
<1%
...
...
1.6E-05
<1%
gamma-Benzene hexachloride
_
4.8E-05
<1%
...
...
4.8E-05
<1%
Heptacblor
...
-
2.8E-05
<1%
2.8E-05
<1%
Heptachlor epoxide
1.8E-04
2.2%
...
l.SE-04
<\%
PCB Aroclor 1016
I.5E-05
<1%
...
1.5E-05
<1%
PCB Aroclor 1254
5.9E-05
<1%
5.9E-05
<1%
Pentachlorophenol
...
5.8E-03
43.2%
...
5.SE-03
27.0%
Thalliuģ
5.6E-03
69.0%
2.8E-03
21.2%
8.4E-03
39.2%
(Total)
O.OOS1
0.013
0.0
0.021
Child Recreator
2-Chlorophenol
6.5E-03
19.6%
6.5E-03
7.0%
Aldrin
4.2E-04
<1%
7.1E-04
2.1%
1.1E-03
1.2%
ArĢenic
1.5E-02
24.9%
1.2E-03
3.6%
...
1.6E-02
17.3%
Atrazine
9.5E-05
<1%
...
...
9.5E-05
<1%
bia(2-Bthylhexyl)phthalate
1.IE-04
<1%
...
...
l.lE-04
<1%
Dieldrin
4.9E-04
<1%
3.2E-03
9.5%
...
3.6B-03
3.9%
Di-n-butylphthalale
-
3.9E-05
<1%
3.9B-05
<1%
gamma- Beo2ģat bexacblorkk
UE-04
<1%
1.3E-04
<1%
Heptachlor
7.6E-05
<1%
7.6E-05
<1%
Heptachlor epoxide
1.1 Ŗ-03
1.8%
1.1E-03
1.1%
PCB Aroclor 1016
1.1E-04
<1%
1.1E-04
<1%
PCB Aroclor 1254
4.5B-04
<1%
4.5B-04
<1%
Pentachlorophenol
1.3B-02
38.1%
1.3E-02
13.6%
Thallium
4.3B-02
70.1%
8.7B-03
26.1%
5.IE-02
$4.8%
(Total)
0.0Ģ0
0.033
0.0
0.094
Adult Angler
2-Chlorophenol
3.0B-02
23.0%
3.0B-02
<1%
4,4'-DDT (p,p*-)
4.0E-02
<1%
4.0E-02
<1%
Aldrin
9.6E-04
<1%
1.7B-02
<1%
1.8E-02
<1%
alpha-Chlordane
-
3.8E-03
<1%
3.8E-03
<1%
ArMnic
_
1.3E-03
1.0%
1.7E-02
<1%
1.8E-02
<1%
Atrazine
~
3.0E-04
<1%
3.0B-04
<1%
Chlordane
3.3E-02
<1%
3.3E-02
<1%
Dieldrin
1.3E-02
9.8%
4.2B-02
<1%
5.4E-02
<1%
Di-n-butylphthalate
-
1.6B-04
<1%
1.6E-04
<1%
gamma-Bmzene hexachloride
4.1E-04
<1%
4.1B-04
<1%
gsnma-ChlordKia
2.7B-02
<1%
2.7B-02
<1%
Pentacblorophenol
6.5E-02
50.1%
6.5B-02
<1%
Thallium
1.9E-02
14.7%
1.9B-02
<1%
Total PCBa
3.1E+-01
99.4%
3.1E+01
99.0%
trans-Nooachlor
-
-
1.0B-03
<1%
1.0B-03
<1%
(Total)
0.0
0.13
31
31
Pģge [ of i
-------
Table 5-5. Summary uf Chemical- and Media- Specific Noncancer Ha/.ards.
Central Tendency Scenario, Lower Ottawa River HHKA
Kxnnsure Medium
Ktpcnure
of
Total
Chronical o( Interest
Sediment
% of
Total
Surface
Water
% of
Total
Fish
% of
Total
Pathways
Total
Child Angler
2-Chlorophenol
3.5E-02
23.0°/o
3.5E-02
<1%
4,4-DDT{p.p-)
...
4.0K-02
<1%
4,0h-0:
< ci
Aldrin
I.IE-03
t -li 02
< ?°e
! XF-02
<
alpha-Chlordane
...
3.7K-03
- 1%
3.7E-03
<-1%
Arsenic
...
l.*E-03
1.0%
l.7E-02
* 1%
1 9E-02
-------
I able >-5. Summary of Chemical- and .Media- Specific Noncancer Hazards,
Central Tendency Scenario, Lower Ottawa River HHKA
Kxoosure Medium
Exposure
% of
Total
Chemical of Interot
Sediment
% of
Total
Surface
Water
% of
Total
Fish
% of
Total
Pathway*
Total
Adult Angler
2-Cblorophenof
3.2E-03
11.6%
3.2E-03
<1%
ĻM'-DDT fp.p*-)
...
1.5E-02
<1%
I.5E-02
<1%
Atdnn
...
...
1.3E-04
9.2%
trans-Nonacblor
...
...
...
1.0E-03
<1%
1.0E-03
<1%
rrotai)
0.0
0.021
IS
15
Child AotUr
2'Cbloropbrnol
...
3.7E-03
11.6%
3.7E-03
<1%
4,4'-DDT(p,p"-)
...
...
I.5E-02
<1%
1.5E-02
<1%
Aldrm
1.5E-04
<1%
1.7E-02
<1%
1.7E-02
<1%
alpha-Chlordane
...
1.0E-03
<1%
1.0E-03
<1%
Arsenic
I.8E-03
5.5%
l.SE-02
<1%
1.7E-02
<1%
Atraane
--
1.2E-04
<1%
9.7E-04
<1%
1.1E-03
<1%
Cblocdane
...
...
0.0E +00
<1%
Dieldrm
1.8E-03
5.6%
t.lE-02
<1%
I.2E-02
<1%
Di-n-butylpbtbalaic
9.4E-05
<1%
9.4B-05
<1%
gamma-Benzene hexacfalocide
6.8E-0S
<1%
6.8B-0S
<1%
gamma-Chlorda&e
1.3E-02
<1%
1.3E-02
<1%
Pentachloropheaol
1.5E-02
47.8%
-
I.5E-02
<1%
Thallium
9.0B-03
28.1%
9.0E-03
<1%
Total PCB*
_
1.5E+01
99.5%
1.5B-H)!
99.3%
Irane-Nonachlor
_
I.0E-03
<(%
1.0B-03
<1%
(ToUl)
0.0
0.032
15
IS
Setmemt 3 (RM 4.9 to <6.5)
Adnlt Recrentor
2-Cblorophenol
4.9B-04
10.3%
4.9E-04
1.3%
Aldrin
2.IE-04
<1%
4.4E-05
<1%
2.6B-04
<1%
Arsenic
2.0E-03
6.2%
1.86-04
3,9%
2.2B-03
5.9%
Atrazine
1.9E-05
<1%
1.9B-05
<1%
bu(2-Etbylhexyi)pbthatģtĢ
2.9E-03
8.9%
2.9B-03
7.8%
Dieldrin
4.08-05
<1%
2.5B-04
5.3%
~
2.9B-04
<1%
Di-n-butylphthelate
-
-
1.3B-05
<1%
-
1.3E-05
<1%
gĢamģ*Bea2Ģne hexachlcride
~
1.1E-05
<1%
1.1B-0S
<1%
HeptģcWor
6.SB-06
<1%
Ģ.8B-06
<1%
Heptachler epoxide
2.8B-04
<1%
2.8B-04
<1%
PCB Aroclor 1016
2.1E-02
65.9%
~
2.1B-02
57.5%
PCB Arocior 1254
1.5E-03
4.5%
1.5B-03
3.9%
PeotachioTOphanol
-
1.9B-03
39.6%
1.9B-03
5.1%
Thallium
4.2E-03
12.9%
1.8B-03
38.9%
6.0E-03
16.2%
(ToUT>
0.032
0.0047
0.0
0,037
Page 3 of 6
-------
Table 5-5. Summary of Chemical- and .Media- Specific Noncancer Hazards.
Central Tendency Scenario, Lower Ottawa River HHRA
Exposure Medium
Kipoturr
Chemical of Interest
Sediment
% of
Total
Surface
Wafer
% of
Total
Hsh
/. of
Total
Pathways
Total
"o tlf
Total
Child Recreaior
2-Chlorophenol
1.1E-03
9.0%
...
1.1E-03
*-1%
Aldrin
l.lh-03
1%
1.5K-04
1.2%
...
I.3E-03
ĢM%
Arsenic
1.5K-02
6.2%
6.7h-04
5.3%
I.5K-02
6.1%
Atrazine
5.2L-05
<1%
5.2E-05
- 1%
bis(2-fc.lhy lhexy Uphthal ale
1.1E-02
4.S%
...
1.1E-02
4.5%
Dteidrin
2.1E-04
< 1 %
6.2H-04
4.9%
...
X.3E-04
<1%
Di-n-butylphthalate
3.2E-05
<1%
3.2E-05
<1%
gamma-Benzene hexachloride
...
3.0H-05
<1%
...
...
3.0E-05
<1%
Heplacblor
1.8E-05
<1%
...
I.8E-05
<1%
Heptachlor epoxide
I.7E-03
<1%
...
...
1.7E-03
<1%
PCB Aroclor 1016
I.6E-01
69.5%
1.6E-01
66 0%
PCB Aroclor J 2 5-4
1.1E-02
4.7%
...
...
...
1.1E-02
4.5%
Pentachlorophcnol
...
...
4.1E-03
33.1%
...
4.1E-03
1.7%
Thallium
3.2E-02
13.6%
5.7E-03
45.3%
...
...
3 SE-02
15.2%
(ToUl)
0.24
0.013
0.0
0.25
Adult Angler
2-Chlorophenol
...
3.2E-03
12.1%
...
...
3.2E-03
*"1%
4,4'*DDT (p,p->
...
...
...
8.5E-03
<1%
S.5E-03
<1%
Aldrin
...
--
1.3 E-04
<1%
4.0E-02
<1%
4.1E-02
<1%
alpha-Cblordane
...
...
1.2E-03
<1%
I.2E-03
< 1%
Arsenic
_
4.6E-04
1.7%
9.4E-03
<1%
9.8E-03
<1%
Atrazine
...
...
1.1E-04
<1%
...
1.1 E-04
<1%
Chlordane
...
4.4E-02
<1%
4.4E-02
<1%
Djeldrin
1.6E-03
5.9%
1 0E-02
<1%
1.2E-02
<1%
Dt-n-butylpbtbaUte
-
8.0E-05
<1%
8.0E-05
<1%
gvnma-Benzeoe hexachloride
...
5.9E-05
<1%
5.9E-05
<1%
gwnma-Chlordane
...
3.3E-02
<1%
3.3E-02
<1%
Pentachlorophenol
...
1.3E-02
49.7%
1.3E-02
<1%
Thallium
7.8E-03
29.2%
7.8E-03
<1%
ToUl PCB*
...
3.0E+01
99.5%
3.0E+01
99.4%
trazu-Nonachlor
...
1.0E-03
<1%
1.0B-03
<1%
(Total)
0.0
0.027
30
30
ChIM Aagkr
2-Chlorophenol
3.7E-03
12.V%
3.7E-03
<1%
4,4'-DDT (p,p*-)
8.5E-03
<1%
8.5E-03
<1%
Aldrin
1.5 E-04
<\%
4.0E-02
<1%
4.0E-02
<1%
alpha-Chlordane
...
1.2E-03
<1%
1.2E-03
<1%
Arsenic
5.3E-04
1.7%
9.3E-03
<1%
9.8E-03
<1%
Atrazine
...
--
1.2 E-04
<1%
1.2E-04
<1%
Cblordaoe
_
4.4E-02
<1%
4.4E-02
<1%
Dieldrin
1.8E-03
5.9%
1.0E-02
<1%
I.2E-02
<1%
Di-n-butylphthalate
-
-
9.4E-05
<1%
9.4E-05
<1%
gamma-Benzene hexachloride
6.8E-05
<1%
6.8E-05
<1%
gvnma-Chlordaae
3.2E-02
<1%
3.2E-02
<1%
Pentachlorophenol
I.5E-02
49.7%
1.5E-02
<1%
Thallium
9.0E-03
29.2%
9.0E-03
<1%
ToUl PCBs
3.0E+01
99.5%
3.0Et01
99.4%
tmu-Noaachlor
-
-
1.0E-G3
<1%
1.0E-03
<1%
(Total)
0.0
0.051
30
30
Pag* 4 of 6
-------
Cable 5-5. Summary of Chemical- and Media- Specific Noncancer Hazards.
Central Tendency Scenario, Lower Ottawa River HHRA
Exposure Medium
F.iposurr
% of
Sediment
% of
Surface
/ of
% of
Pathways
Total
Fhh
Total
Chemlcul of Interest
Water
Total
Total
Total
Segment 4 (KM 6.5 In 8.8)
Adult Recreator
2-Chloropbenol
...
4.9E-04
10.3%
4.9E-04
3.7%
Aldrin
1.4E-05
<1%
4.4E-05
<1%
...
5.9E-0^
< i°-o
Arsenic
1.8E-03
21.4%
l.SE-04
3.9%
...
...
2 0E-03
15.2%
Atraane
...
J.9E-05
<]%
1 $E-0<
- 1%
bu(2-Ŗthylhexyl)phthalate
9.7E-05
1.1%
9.7E-05
<1%
Dieldrin
I.7E-05
<1%
2.5E-04
5.3%
2.7E-04
:.o%
Di-o-butylphthaJate
1.3E-05
<1%
...
...
1.3E-05
0.0
0.027
15
15
Pag* 5 of 6
-------
Table 5-5- Summary- of Chemical- and Media- Specific Noncancer Hazards.
Central Tendency Scenario, Lower Ottawa River HHRA
Chemical of Interest
Sediment
% of
Total
Ktnofure Medium
Surface % of
Water Total
Klsh
% of
Total
Etpnsure
Pathways
Total
% of
Total
Child Aagler
2-Chlorophenol
...
3.7E-03
1 2.1 %
3.7E-03
<1%
4,4'-DDT (p.p'-)
...
4,:h-02
<1%
4.2E-02
<1%
AldriQ
...
1.5E-04
<1%
1.7E-02
< l %
1.7E-02
<1%
alpha-Chlordane
...
...
...
6 3E-01
< 1 %
6. Jh-OJ
<1%
Arsenic
...
5.3E-04
1.7%
9.--E-03
-i%
1.0E-02
<1%
Atrazine
...
1.2E-04
...
1.2E-04
<1%
Chlordane
...
...
1.6E-02
< 1%
1.6E-02
<1%
Dieldrin
...
...
l.SE-03
5.9°'o
6.9E-02
<1%
7.1E-02
<1%
Di-n-butylpbthalate
...
...
9.4E-05
<1%
9.4E-05
<1%
gamma-Benzene hexachloride
...
...
6.8E-05
<\%
...
6.SE-05
<1%
gamraa-Chlordane
...
7.2E-03
<1%
7.2F-03
<1%
Pentachlorophenol
...
...
1.5E-02
49.7%
1.5E-02
<1%
Thallium
...
...
9.0E-03
29.2%
...
9.0E-03
<1%
Total PCBs
...
...
1.5E-01
9S.9%
1.5EĢ-01
9S.7%
traiu-Nonachlor
2 2E-01
2.2E-03
<1%
(Total)
0.0
0.031
15
15
Pig# 6 of 6
-------
Tabic $-6. Summary of Cancer Risks, RME Scenario
Lower Ottawa River Human Health Risk Assessment
Segment 1
Segment 2
Segment 3
Segment 4
Risk
V.
Risk
V.
Risk
%
Risk
V.
Recreator
*,4'-DDT (p4>'-)
8.6E-07
0.7%
2.1E-07
0.4%
2.IE-07
0.2%
2.1E-07
0.4%
Akbia
5.3E-07
0.4V.
3.2E-07
0.7%
3.6E-07
0.3%
t.lt-07
0,2%
Anaac
3.7E-06
3.1%
4.9E-06
10.3%
3.5E-06
3.3%
3.1E-06
5.3%
Benzo(>)ĢnlhncĢne
8.1E-08
<0.1%
2.3B-07
0.5%
6.6E-07
0.6%
6.1E-07
1.0%
Baao(a)pyrene
9.9E-07
0.8%
2.0E-06
4.1%
7.9E-06
7.5 %
G.3E-06
lo.7%
B-)
1.4E-05
0.4%
9.1E-06
0.6%
7.0E-06
0.2%
1 lt-05
U.Cr*
4,4'-DDT (pp'-)
1.8E-05
0.5%
6.4E-06
0.4%
3.9E-06
0.1%
1.8U-05
1.0%
Akbia
2.2E-05
0.6%
2.1E-05
1.4%
5.0E-05
1.6%
2.1E-05
1.2%
Ģ^phģ-CblordĢne
1.4E-05
0.4%
4.4E-07
<0.1%
S.OE-07
<<>. 1%
2.7i:-06
0,2%
Altaic
1.7E-05
1.1%
I. DE-OS
0.3%
in:-05
0.0%
Chlonbne
1.4E-05
0.4V.
5.7E-06
0.4%
1.9E-05
0.6%
6 8F-06
0.4%
DWdris
S.6E-0S
2.6%
2.2E-05
1.4%
2.1E-05
0.7%
1.4E-04
7.K%
gunmģCblonlģiK
1.2E-05
0.3%
5.7E-06
0.4%
I.4E-05
0.4%
3.IE-06
U.2%
N-Nitna&di-n-pmpyisnune
5.1E-05
1.5%
1.4E-05
0.9%
1-4E-0S
0.5%
I.4L-U5
0.8%
Fentachlorophenol
l.IE-04
3.2%
3.JE-05
2.2%
3.SE-05
1.1%
3.5E-U5
2.0%
ToUl PCBi
3.0E-03
89.1%
I.4E-03
91,1%
2.91MH
1)4 3%
1.5E-03
84.X%
tnm-Nontctoor
4.4E-07
<0.1%
4.4E-07
<0 1%
4.-4K-07
ii. 1%
!>..u;-07
:(ģ. |%
(Total)
3.4tU)3
1.6E-0J
3IK-II3
1.MK-II3
-------
Table 5-7. Summary of Cancer Risks, CT Scenario
Lower Ottawa River Human Health Risk Assessment
Segment 1
Segment 2
Segment 3
Segment 4
Risk
%
Risk
%
Risk
%
Risk
V.
Recreator
4,4'DDT
1.2E-07
0.7%
3.0E-08
0.4%
3.0E-08
0.1%
3.OE-08
0.3°'.
Aldrin
8.6E-08
0.5'/.
7.0E-08
0.8 %
8.IE-08
0.4%
I.8E-08
<1.2%
Aneaic
9.6E-07
5.3%
1.2E-06
14.6%
8.9E-07
3.9%
8.3E-07
7.4%
Benzo(i)uilhracene
2.0E-08
0.1%
5.7E-08
0.7%
1.6E-07
0.7%
1.5E-07
1.3%
Btnzo(Ģ)pyrene
2.4E-07
1.3%
4.8E-07
5.7%
1.9E-06
8.3%
1.5E-06
13.8%
Benzo(b)flu>ranlhene
2.6E-08
0.1%
8.2E-08
1.0%
2.5E-07
1.1%
I.9E-07
1.7%
Benzo0r)fluoranthene
4.6E-09
<0.1%
4.5E-09
<0.1%
2.2E-08
<0.1%
1.9E-08
0.2%
bi*(2-Ethylhexyl)phlhalate
3.2E-09
<0.1%
1.7E-08
0.2%
3.4E-U7
1.5%
3.4E-07
3.0%
Dibenz(aģanthracene
2.5E-07
1.4%
3 8E-07
4.6%
4.IE-06
1 7.9%
5.5E-07
5.(1%
Dieldrin
5.0E-07
2.8%
1 3E-07
1.5%
I.1E-07
0.5%
9.8E-08
0.9%
Heptachlor
3.0E-08
0.2%
7.3E-09
<0.1%
7.3E-09
<0.1%
7.3L-09
<11,1",
Heptachlor epoxide
1.5E-08
<0.1%
5.0E-08
0.6%
2.5E-08
0.1%
3 3 !;-(ģ
11.1',.
Indeno(l X ,3-cd)pyrene
1.8E-08
0.1%
3.7E-08
0.4%
1.7E-07
0.7%
1.3E-07
1.2%
N-Nitroao-di-n-propylamjne
7.1E-06
39.2%
2.5E-06
30.5%
6.2E-0G
26.9%
3.9E-06
35.5%
Total PCBs
1.5E-07
0.8%
4.4E-07
5.3%
6.0E-06
25.9%
4.8E-07
4.3%
Pentachlorophenol
8.6E-06
47.3%
2.8E-06
33.5%
2.8E-06
12.(1%
2.8E-H6
25,1%
(Total)
1.8E-05
8.3E-06
2.3E-05
1-lK-ltS
Angler/ Fish Consumer
4,4'-DDD (p4>'-)
5.9E-07
0.1%
2.9E-07
0.2%
3.3E-07
11.1%
5.SI: 117
<>.3%
4,4'-DDE (pfi1-)
1.4E-06
0.3%
9.6E-07
0 5%
7.3E-07
0,2%
1.21:-111.
<>.Ŗ/
4,4'-DDT (pp'~)
2.7E-06
0.6%
7.8E-07
0.4%
5.IE-07
0.2%
2.0E-06
1.11%
Aldrin
2.4E-06
0.5%
2.3E-06
1.3%
5.3E-06
1,6%
2.3E-06
1.1%
alpha-Chlofdane
1.7E-07
<0.1%
4.6E-08
<0.1%
5.2E-08
<11.1%
2.9L-07
11.1%
Arsenic
2.1E-06
0.5%
2.0E-O6
1.1%
1.1E-06
0.3%
1.2E-06
o.r,%
Chlordane
l.SE-06
0.3%
6.0E-07
0.3%
2.0E-06
0.6%
7.IE-07
0.4%
Dieldrin
1.1E-05
2.6%
2.5E-06
1.4%
2.4E-06
(1.7%
I.5E-05
7 a-:
gamma-Chlordane
1.2E-06
0.3%
6.0E-07
0.3%
1.5E-06
0.4%
3.3E-07
0 :%
N-Nitroso-di-n-propylamine
3.IE-05
7.1%
5.3E-06
3 0%
1.1E-06
0.3%
5.3E-06
2,7%
Pentachlorophenol
6.5E-0J
15.0%
I.3E-05
7.4%
2.8E-06
0.8%
I.3E-05
b 7%
Total PCBs
3.1E-04
72,6V.
1.5E-04
84.0%
3 IE-04
946%
1.6E-04
78.9%
trans-Nonachlor
4.6E-08
<0.1%
4.6E-08
<0.1%
4.6E-08
<0.1%
9.8E-08
<0.1%
(TotaS)
4JE-04
J.IE-04
3JE-04
lllfc-W
-------
Table 5-8. Summary of Noncanccr Hazards, RME Scenario
Lower Ottawa River Human Health Risk Assessment
Segment 1
HI /.
Segment 2
HI /.
Segment 3
Hi %
Segment 4
III %
Adult Recreator
2-CMorophenol
5.7E-03
13.0%
9.8E-04
3.4%
9.8F.-04
1.5%
9.8E-04
3.8%
AMrin
8.4E-04
1.9%
4.8E-04
1.7%
5.4E-04
0.8%
1.8E-04
0.7%
Arsenic
4.7E-03
10.9%
6.SE-03
22.6%
4.1E-03
6.1%
3.8H-03
14.7%
Attune
8.6E-0S
0.2%
4.8E-05
0.2%
4.8E-05
<0.1%
4.8E-05
0.2%
bi^2-Ethylheiyl)phlhalģte
5.2E-OJ
0.1%
2.7E-04
0.9%
5.4E-03
8.1%
1.8E-04
0.7%
Diddrio
3.0E-03
6.8%
6.8E-04
2.4%
6.2E-04
0.9%
5.8E-04
2.2%
Di-n-butylphlhalate
3.4E-05
<0.1%
2.8E-05
<0.1%
2.8E-05
<0.1%
2.8E-05
0.1%
gamma-Benzene hexachloride
1.2E-04
0.3%
2.7E-05
<0.1%
2.7E-05
<0.1%
2.7E-05
0.1%
HcpttcUor
7.0E-O5
0.2%
1.7E-05
<0.1%
1.7E-05
<0.1%
I.7E-05
<0.1%
Heptachlor epoxide
3.2E-04
0.7%
1.0E-03
3.6%
5.1E-04
0.8%
6.8E-05
0.3%
PCB Aroclor 1016
2.SE-0S
<0.1%
5.1E-04
1.8%
3.6E-02
54.2%
1.9E-03
7.4%
PCB Aioclor 1254
1.0E-04
0.2%
2.5E-04
0.9%
2.5E-03
3.7%
5.UE-03
19.0%
Pentachloropheno)
1.1E-02
24.7%
3.5E-03
12.2%
3.5E-03
5.2%
3.5E-03
13.4%
Thallium
1.8E-02
40.8%
1.4E-02
50.1%
1.2E-02
18 6%
9.7E-03
37.3%
(Total)
0.044
0.029
0.067
11.1126
Child Recreator
2-Chlorophenol
3.8E-02
11.9%
6.6E-03
2.9%
6.6E-03
1.1%
66E-0J
3.1%
Aktrin
4.5E-03
1.4%
2.7E-03
1.2%
3.1E-03
0.5%
9.4E-04
0.4%
Aisenic
3.8E-02
12.0%
5.0E-O2
22.6%
3.SI:-02
6.0%
3.21:-02
15.4%
Atracine
5.2E-04
0.2%
2.9E-04
0.1%
2.9E-04
<0.1%
2.9E-04
0.1%
bi^2-Elhy)hĢyl)phihalHŖ
2.0E-04
<0.1%
1.1E-03
0.5%
2.1E-02
3.7%
7.2E-04
0.3%
Diddrio
1.9E-02
5.9%
4.3E-03
1.9%
4.0E-03
0.7%
3.7E-03
1.8%
Di-n-tatylphlhalate
2.2E-04
<0.1%
1.8E-04
<0.1%
1.8E-04
<0.1%
1.8E-04
<0.1%
puma-Benzene hexachloride
7.1E-04
0.2%
1.4E-04
<0.1%
' I.6E-04
<0.1%
1.6E-04
<0.1 %
Heptachlor
4.2E-04
0.1%
3.4E-04
0.2%
1.0E-04
<0.1%
1.0E-04
<0.1%
Ifepttdikr epoxide
2.2E-03
0.7%
7.2E-03
3.2%
3.6E-03
0.6%
4.8E-04
0.2%
KB Aioclor 1016
2.5E-04
<0.1%
4.9E-03
2.2%
3.6E-01
61.6%
1.911-02
9.0%
PCB Aroclor 1254
9.8E-04
0.3%
2.4E-03
1.1%
2.4K-02
4.2%
4.8E-02
23.1%
Pentachiorophenol
7.SE-02
23.6%
2.4E-02
11.0%
2.4E-02
4.2%
2.4E-0 2
11.7%
Thallium
1.4E-01
43.5%
1.2E-01
52.8%
1.0E-01
17.2%
7.2E-02
34 5%
(Total)
0.32
0.22
0.58
11.21
Page I of 2
-------
Table 5-8. Summary of Noncancer Hazards, RMR Scenario
Lower Ottawa River Human Health Risk Assessment
Segment 1
III /.
Segment 2
HI %
Segment 3
111
Segment 4
111 %
Adult Aagler/ Fish Consumer
2-Chlorophenol
2.4E-02
<0.1%
4.2E-03
<0.1%
4.2E-03
< 0. 1%
4.2E-U3
<0.1%
4,4'-DDT (pj>'-)
2 3E-01
0.1%
8.2E-02
<0.1%
4.8E-02
<0.1%
2.4E-01
0 3°;.
AMrin
9.7E-02
<0.1%
9.7E-02
0.1%
2.3E-01
n.1%
9.7E-II2
0. 1%
alpha-Chlofdane
2.1E-02
<0.1%
5.8E-03
<0 1%
6.SE-03
<0.1°/.
"U.L-02
Ļ ii. I-,
Aneoic
9.8E-02
<0.1%
8.9E-02
0.1%
5.3E-02
<0.1%
5.5E-02
0.1 :,
Atruine
2.5E-04
<0.1%
1.4E-04
<0.1%
1.4E-04
<0.1%
I.4E-04
'Ļ0.1* .
Chlordane
1.9E-01
0.1%
7.6E-02
<0.1%
2.5E-01
0.1%
8.911-1)2
II. I"-
Dieldrin
2.5E-01
0.1%
6.2E-02
<0.1%
6.0E-02
<0.1%
3.9E-01
0.5",.
Di-n-butylphthalate
1.1E-01
<0.1%
1.0E-04
<0.1%
I.UE-04
<0. 1%
I.CIE-04
-il. I'..
gamma-Benzene hexachloride
3.4E-04
<0.1%
7.6E-05
<0.1%
7.6E-05
<(l. 1%
7.<)!:-( >5
0,I" ,
gamroa-Chlordane
I.5E-01
<0.1%
7.6E-02
<0.1%
1.8E-01
(1.1%
4.1E-II2
-Ļ0.11 ,
Pentachlorophenol
5.3E-02
<0.1%
1.7E-02
<0.1%
1.7E-02
0.1%
I.7E-H2
Ļ II ]Ļ'
Thallium
1.5E-02
<0.1%
1.0E-02
<0.1%
l.OE-02
<0.1%
Ulh-li'
Total PCBi
1.7E+02
99.3%
8.3E+01
99.4%
1.7K+02
99.5%
8.C.EMM
m
tnns-Nonachlor
5.8E-03
<0.1%
5.8E-03
<0.1%
5.8E-03
<0.1%
1.2E-H2
Jii',
(Total)
174
83
171
87
Child Angler/ Fish Consumer
2-Chlorophenol
4.3E-02
<0.1%
7.4E-03
<0.1%
7.4E-U3
- II. 1%
7.4L-03
ii i°,
4,4'-DDT
-------
Table 5-9. Summary of Noncancer Hazards, CT Scenario
Lower Ottawa River Human Health Risk Assessment
Segment 1
Segment 2
Segment 3
Segment 4
HI
%
HI
V.
HI
V.
111
%
Adalt Recreator
2-Chloropbeoo(
2.8E-03
13.1%
4.9E-04
3.4%
4.9E-04
1.3%
4.9E-04
3.7%
Aldrin
2.8E-04
1.3%
2.2E-04
1.6%
2.6E-04
0.7%
5.9F.-05
0.4%
Aimic
2.4E-03
11.1%
3.1E-03
21.7%
2.2E-03
5.9%
2.0E-03
15.2%
Atnizine
3.5E-05
0.2%
1.9E-0S
0.1%
1.9E-05
<0.1%
1.9E-05
0.1%
bia(2-Ethylhexyl)phih*l4le
2.8E-05
0.1%
1.4E-04
1.0%
2.9E-03
7.8%
9.7E-05
0.7%
Dieklrin
1.4E-03
6.4%
' 3.2E-04
2.3%
2.9E-04
0.8%
2.7E-04
2.0%
Di-n-butyiphth*liie
1.6E-05
<0.1%
1.3E-05
<0.1%
1.3E-05
<0.1%
1.3E-05
<0.1 %
gamma-Benzene hexachloride
4.8E-05
0.2%
1.1E-05
<0.1%
1.1E-05
<0.1%
1 IE-05
<0.1%
Heptachlor
2.8E-05
0.1%
6.8E-06
<0.1%
68E-06
<0.1%
6.8E-06
<0.1%
Heptachlor epoxide
1.8E-04
0.8%
5.7E-04
4,0%
2.8E-04
0.8%
3.81:-05
0.3%
PCB Aroclor 1016
1.5E-05
<0.1%
3.0E-O4
2.1%
2.1E-02
57.5%
1.1U-03
8.5%
PCB Aroclor 1254
5.9E-05
0.3%
1.5E-04
1.0%
1.5E-03
3.9%
2.9E03
21.8%
Pentachlorophenol
5.8E-03
27.0%
1.9E-03
13.1%
1.9E-03
5.1%
I 9E-03
14.1%
Thallium
8.4E-03
39.2%
7.1E-03
49.5%
6.0E-03
16.2%
4.4E-03
32.9%
(Toul)
0.021
0.014
0.037
IMII3
Child Recreator
2-CMorophenol
6.SE-03
7.0%
1.1E-03
1.4%
I.1E-03
0.5%
l.lli-03
1.5%
Aldrin
1.1E-03
1.2%
1.1E-03
1.3%
1.3E-03
0.5%
2.3E-04
0.3%
Altaic
1.6E-02
17.3%
2.0E-02
25.1%
I.5E-02
6.1%
I.4E-02
18.3%
Atraaaa
9.SE-05
0.1%
5.2E-05
<0.1%
5.2E-05
<0.1%
5 2E-05
<0.1%
bia(2-Ethylbexyl)phthaUte
1.1E-04
0.1%
5.6E-04
0.7 %
l.IE-02
4.5%
3.8E-04
0.5%
DieMrin
3.6E-03
3.9%
9.9E-04
1.2%
8.3E-04
0.3%
7.1E-04
0.9%
Di-n-butyiphthaUte
3.9E-05
<0.1%
3.2E-05
<0.1%
3.2E-05
<0.1%
3.2E-05
<0.1%
gamma-Benzene hexachloride
1.3E-04
0.1%
2.5E-05
<0.1%
3.0E-05
<0.1%
3.0E-05
<0.1%
Heptachlor
7.6E-05
<0.1%
6.9E-05
<0.1%
1.8E-05
<0.1%
1.8E-05
<0.1%
Heptachlor epoxide
1.1E-03
1.1%
3.4E-03
4.2%
I.7E-03
0.7%
2.3E-04
0.3%
PCB Aroclor 1016
ITeSS
b!i%
2.3E-03
2.8%
1.6E-01
66.0%
8.7E-03
11.3%
PCB Aroclor 1254
4.5E-04
0.5%
1.1E-03
1.4%
l.IE-02
4.5%
2.2E-02
28.9%
Penlachlorophenol
1.3E-02
13.6V.
4.1E-03
5.1%
4.1 E-03
1.7%
4.1E-03
5.4%
Thallium
5.1E-02
54.8%
4.6E-02
56.5%
3.8E-02
1 5.2%
2.5E-02
32 0%
(Total)
0.094
0.0(1
0.25
0.077
Page I of 2
-------
Table 5-9. Summary- of Noncancer Hazards, CT Scenario
Lower Ottawa River Hainan Health Risk Assessment
Segment 1
Segment 2
Segment 3
Segment 4
HI
/.
IU
%
111
V.
HI
°/o
Adnlt Angler/ Fish Consumer
2-Chlorophenol
3.0E-02
<0.1*/.
3.2E-03
<0.1%
3 2E-03
<0.1%
3.2E-03
<0.1%
4,4-DDT (pp'-)
4.OE-02
0.1%
l.SE-02
<0.1%
B.SE-03
<0.1%
4.2E-02
0.3%
Aldrin
I.8E-02
<0.1%
1.7E-02
0.1%
4.IE-02
0.1%
1.7E-02
(1.1%
aipha-Chlorduie
3.8E-03
<0.1 %
1.0E-03
<0.1%
1 2E-03
<0.1%
(J.4E-01
<0.1%
Araenic
1.8E-02
<0.1%
1.7E-02
0.1%
9.8E-03
<0.1%
1.UE-U2
<0.1%
Atnmne
I.IE-04
<0.1%
1.1E-04
<0.1%
1.1E-04
<0. 1 °,
Chloidane
3.3E-02
0.1*/,
1.3E-02
<0.1%
4.4E-02
0.1%
1 .(>[Ŗ-112
0.1%
Dieldrin
54E-02
0 2%
1.2E-02
<0.1%
1.2L-02
<0.1%
7.11:-02
o.s%
Di-n-butylphthalate
1.6E-04
<0.1°/.
8.OE-05
<0.1%
S.OE-OS
'0.1%
8.OE-05
<().!";,
gamma-Benzene hexachloride
4.1E-04
<0.1V,
5.9E-05
<0 1%
S.9E-0S
<0.1%
5.9E-05
<0. 1%
gamma-Chlordanc
<0.1%
3.3E-02
0.1%
7.3E-03
--0.1%
Pmtachlorophenol
6.5E-02
0.2%
1.3E-02
<0.1%
I.3E-02
<0.1%
1.3E-02
<0.1%
Thallium
1.9E-02
<0.1%
7.8E-03
<0.1%
7.8E-03
<0.1%
7.8K-03
<0 1%
Totat PCBi
3.1E+01
99.0%
l.SE-tOl
99.2%
3.01:ģ01
99.4%
1.51- 01
98 T..
tnms-Nonachlor
1.0E-03
<0.1%
1.0E-03
<0.1%
1.0E-03
- 0.1 %
2.21:-03
(Total)
31
15
30
IS
Child Angler/Fish Container
2-Chlorophenol
3.5E-02
0.1%
3.7E-03
<0.1%
3.7E-03
'0.1%
3.7IMI3
<11 1ģ
4,4'-DDT (P4>'-)
4.0E-O2
0.1%
1.5E-02
<0.1%
8.SE-03
<0.1%
4.2K-02
0 1%
Aldrin
1.8E-02
<0.1%
1.7E-02
0.1%
4.0E-02
0 1%
1.71:4)2
0.1%
alpha-CNordane
3.7E-03
<0.1%
1.0E-03
<0.1%
1.2E-03
<0.1%
6.31:-113
Ļ0.1%
Arsenic
1.9E-02
<0.1%
1.7E-02
0.1%
9.811-0?
'0.1%
i.nn-o2
Ļ <1 1%
Atrazue
1.2E-04
<0.1%
1.2E-04
<0. 1%
1.2E-04
-0 l<,.
Chlotdane
3.3E-02
0.1%
1.3E-02
<0.1%
4.4E-02
0.1%
1.6E-02
0.1%
Dieldrin
5.6E-02
0.2%
1-2E-02
<0.1%
1.2E-02
<0.1%
7.11:-02
U 5%
Di-n-butylphtha late
l.SE-04
<0.1%
9.4E-05
<0.1%
9.4E-05
<0.1%
9.4E-05
(1.1%
gamma-Benzene hexachloride
4.8E-04
<0.1%
6.8E-05
<0.1%
6.8E-05
<0.1%
6.KE-05
<(1.1%
gamma-CMordanc
2.7E-02
<0.1%
1.3E-02
<0.1%
3.2E-02
0.1%
7.21; 01
0 1%
Polacblorophenol
7.5E-02
0.2%
1.5E-02
0.1%
l.JE-02
* 0.1%
I.5L-02
0l-
Thallium
2.2E-02
<0.1%
9.0E-03
<0.1%
9.0E-03
<0.1%
9.0E-03
O. 1%
Total PCBi
3.0E+01
96.9%
I.SE+Ol
99.2%
3.0E+01
99.4%
1 51:-01
98.7%
tnuia-Nonachlor
I.0E-03
<0.1%
1.0E-03
<0.1%
1 .OE-U3
<0.1%
2.2E-03
-------
Table 5-11). IEUBK Model Output, Lower Ottawa River Human Health Risk Assessment
Scenario
Sediment
KPC
(mg/kg)
Surface Water
KPC
(Jig/L)
GM
Blood Lead
Concentration,
0-84 moatbs
0ģg/L)
Blood Lead
Concentration,
Percent
<10 ng/dL
Segment 1 (RM 0 to <3.2)
RME Child Recreator
113
7.8
3.445
98.906
CT Child Recreator
113
7.8
3.414
98.968
Segment 2 (RM 3.2 to <4.9)
RME Child Recreator
363
7.3
4.811
94.342
CT Child Recreator
363
7.3
4.796
94.342
Segment 3 (RM 4.9 to <6.5)
RME Child Recreator
287
5.9
4.178
96.956
CT Child Recreator
287
5.9
4.162
97.137
Segment 4 (RM 6.5 to 8.8)
RME Child Recreator
189
2.4
3.420
98.968
CT Child Recreator
189
2.4
3.410
98.968
-------
Table 5-11. Summary of Cancer Risks for Consumption of Fish Containing COls at
Concentrations Estimated Based from BAFs. RMK Angler Scenario
Lower Ottawa River Human Health Risk Assessment
Estimated EI'C
Cancer Risk
Chemical of Interest
in Fish (mg/kg)
Fish Consumption
Segment 1 (RM 0 to <3.2)
N-Nitroso-di-n-propylamine
0.12
2.2E-04
Pentachlorophenol
183
5.6H-03
Segment 2 (RM 3.2 to <4.9)
N-Nitroso-di-n-propylamine
0.034
6.0H-05
Pentachlorophenol
60
1.8F-03
Segment 3 (RM 4.9 to <6.5)
N-Nitroso-di-n-propylamine
0.034
6.0E-05
Pentachlorophenol
60
1.8E-03
Segment 4 (RM 6.5 to 8.8)
N-Nitroso-di-n-propylamine
0.034
6.0E-05
Pentachlorophenol
60
1.8E-03
-------
Table 5-12. Estimated PCB Hazards Assuming Consumption of Fish at Quantities
Consistent with Great Lakes Sport Fish Advisory Consumption Categories,
Lower Ottawa River Human Health Risk Assessment
Total PCBs
EPC
Noncancer
Segment
(mg/kg)
ill
Category 1 (Unrestricted consumption)
1 (RMOto <3.2)
5.9
240
2 (RM 3.2 to <4.9)
2.8
110
3 (RM 4.9 to <6.5)
5.8
230
4 (RM 6.5 to 8 8)
2.9
120
Category 2 (One meal per week)
1 (RM 0 to <3.2)
5.9
67
2 (RM 3.2 to <4.9)
2.8
32
3 (RM 4.9 to <6.5)
5.8
66
4 (RM 6.5 to 8.8)
2.9
33
Category 3 (One meal per month)
1 (RMOto <3.2)
5.9
13
2 (RM 3.2 to <4.9)
2.8
6.1
3 (RM 4.9 to <6.5)
5.8
12
4 (RM 6.5 to 8.8)
2.9
6.3
Category 4 (One
meal every two months)
1 (RMOto <3.2)
5.9
6.2
2 (RM 3.2 to <4.9)
2.8
3.0
3 (RM 4.9 to <6.5)
5.8
6.1
4 (RM 6.5 to 8.8)
2.9
3.1
Printed on recycfcd paper 99
-------
Table 5-13. Percent of Fish Caught in the Lower Ottawa River with
Fish Tissue Concentrations within Great Lakes Sport Fish Advisory
Acceptable Concentration Ranges for Fish Consumption Categories
Category
Great Lakes Sport Fish
Advisory Acceptable PCB
Percent of Fish Collected in
Lower Ottawa River within
Concentration Range
PCB Concentration Range
Category 1
(unrestricted consumption)
0-0.05 ppm
0%
Category 2
(1 meal/week)
>0.05-0.2 ppm
12%
Category 3
(1 meal/month)
>0.2-1.0 ppm
40%
Category 4
(6 meals/year)
>1-1.9 ppm
14%
Category 5
(no consumption)
>1.9 ppm
33%
Printed on recycled paper
100
-------
Table 5-14. Summary of Sample-Specific Estimated Cancer Risks
for Surface Water, Recreator Scenario (Including Nondetected COIs)
River MUc a ad
SegMCBt
Recrcater
N-Nitroio-di
Saaplc N*.
N*.
Caatcr Riik
Raak 4,4-DDT
Aldrla
Aneaic
Diddria
Heptachler
-a-propylaiaiae
PCP
RM 0.5 #ENW03MSD Left ad*
1
2.3E-04
1 0.7%
0.4%
NA
2.6%
0.2%
43%
54%
RM O S KENW03MS Left ride
1
1.9E-04
2 0.ģ%
0.4%
NA
3.0%
0.2%
43%
53%
RM4.S #ENW31 Right ode
3.5E-OS
3 0.6%
0.3%
3.4%
1.8%
0.1%
38%
56%
RM 0.3 IENW03 Left rid*
1
3.5E-05
4 0.6%
0.3%
2.9%
1.8%
0.1%
38r.
56%
RM ^S KKNWI7 Uft ride
J _
3.4E-05
5 0.6%
0.3%
2.1%
1.8%
0.1%
38%
57%
RM 0.5 #ENW05 Right rid*
"l
3.4E-05
5 0.6%
0.3%
1.0%
1.9%
0.2%
39%
57%
RM 1.3 #ENW07 Uft rid*
I
3.4E-05
S 0.6%
0.3%
1.0%
1.9%
0.2%
39%
57%
RM 1.3 0ENW1I Right rid*
1
3.4E-05
5 0.6%
0.3%
1.0%
1.9%
0.2%
39%
57%
RM 2 #ENW13 Left ride
1
3.4E-05
5 0.6%
0.3%
1.0%
1.9%
0.2%
39%
57%
RM2 #ENW15 Right rid*
1
3.4E-0S
S 0.6%
0.3%
1.0%
1.9%
0.2%
39%
57%
RM2.S ABNW19 Right rid*
1
3.4E-05
5 ' 0.6%
0.3%
1.0%
1.9%
0.2%
39%
57%
RM2.S #ENW21 Right ride
1
3.4E-05
5 0.6%
0.3%
1.0%
1.9%
0.2%
39%
57%
RM 3.6 #ENW25 Right rid*
2
3.4E-05
5 0.6%
0.3%
1.0%
1.9%
0.2%
39%
57%
RM 3.6 #ENWS0 Right rid*
2
3.4E-05
S 0.6%
0.3%
1.0%
1.9%
0.2%
39%
57%
RM 4.2 #BNW2S Left ride
2
3.4E-0S
S 0.6%
0.3%
1.0%
1.9%
0.2%
39%
57%
RM S.S *ENW34 Uft ride
3
3.4E-0S
S 0.6%
0.3%
1.0%
1.9%
0.2%
39%
57%
RMS.S #ENW38 Right ride
3
3.4E-0S
S 0.6%
0.3%
1.0%
1.9%
0.2%
39%
57%
RM 6.1 KENW41 Right ride
3
3.4E-0S
S 0.6%
0.3%
1.0%
1.9%
0.2%
39%
57%
RM 7.2 #BNW43
4
3.4E-0S
S 0.6%
0.3%
1.0%
1.9%
0.2%
39%
57%
RM S.3 *ENW4S Right ride
4
3.4E-0S
S 0.6%
0.3%
1.0%
1.9%
0.2%
39%
57%
RM S.S (KEKWS3 Right ride
3
3.4E-05
S 0.6%
0.3%
NA
1.9%
0.2%
39%
58%
NA Notaadyxed
-------
Table 5-15. Summary of Sample-Specific Estimated Cancer Risks
for Surface Water, Recreator Scenario (Including Detected COIs Only)
RJver Mileaad
Segmeat
Recreator
N-NHroio-di
Sample No.
No.
Caacer Risk
Raak
4,4'-DDT
Aldria
Arsealc
Dieldria
lleptacblor
-a-propylatuinc
PCI'
RM0.5 #ENW03MSD Left aide
1
2.3E-04
1
0.7%
0.4%
NA
2.6%
0.2%
43%
54%
RM0.5 (KENW03MS Leftside
1
I.9E-04
2
0.8%
0.4%
NA
3.0%
0.2%
43%
5 3%
RM 4.8 0ENW31 Right tide
2
1.2E-06
3
ND
ND
100%
ND
ND
ND
ND
RMO.S #ENW03 Left aide
1
1.0E-06
4
ND
ND
100%
ND
ND
ND
ND
RM2.S (KENW17 Leftside
>
7.4E-07
5
ND
ND
100%
ND
ND
ND
ND
NA Not analyzed
ND Not detected
-------
Table 5-16. Summary of Sample-Specific Ksti mated Cancer Risks
for Sediment, Recreator Scenario (Including Nondetected COIs)- Sorted by Estimated Cancer Risk
RfvĢr M
-------
Table 5-16. Summary of Sample-Specific Kslimated Cancer Ki*k.s
for Sediment, Recreator Scenario (Including Nondetected COIs)- Sorted by Estimated Cancer Risk
River.VI He and
Segroen t
Kfcrrafor
aģp
N-NMroso-dl
Toltl
Sample No.
No.
Cancer Risk
Hank
Arsenic
K.quh 4lenl
-o-propvUmloe
P< Hi
RM0.8 ģOR O.SR 0-24
1
MH-06
61
80%
7J0
7°o
RM 3 6 #OR 8.6
4
5.4E-06
62
:o%
7 7%
2%
1°>
RM 3 3 ģOR3.JRO-24
5.4E-06
63
61%
19%
6%
14%
RM 2-9 #OR 2.9L 0*24
1
V3E-06
64
6 b%
: i %
6%
1%
RM 5.77 #RR t'PST R 2-26
3
5.2E-06
6^
4 5%
42%
13%
1%
RM I 5 ģOR I 5R0-18
1
5.2 E-06
66
67%
s%
8%
151%
RM 2.8 #OR 2.8M 0-24
1
5.2E-06
67
<4%
43%
1%
2%
RM 7.7 ffOR 7.7 0-23
4
5.1 E-06
6X
42%
41%
12%
RM 4.6 #OR4.6LO-24
2
5.1 E-06
69
51%
7%
1%
40%
RM 2.5 #OR 2.5R 0-24
I
5.1 E-06
70
6S%
9%
7%
15%
RM 1.1 "OR 1.1R0-20
1
5.1 E-06
71
6X%
8%
8%
17%
RM 1.5 #OR 1.5M 0-18
I
5.0E-06
72
65%
8%
8%
1S%
RM 3.8 #OR 3.8R 0-20
2
5.0E-06
73
71%
14%
4%
11%
RM 2.8 4OR2.8L0-24
1
5.0E-06
74
66%
24%
7%
3%
RM 18 #OR 1.8L 0-24
1
4.9E-06
75
67%
8%
8%
P%
RM 3.2 #OR3.2RO-24
2
4.9E-06
76
70%
14%
4%
12%
RM 0.8 #OR0 8M0-10
1
4.9E-06
77
6S%
8%
S%
1 5%
RM 0.7 #OR 0.7M 0-11
1
4.9E-06
7S
70%
8%
8%
13%
RM 1.7 #OR 1.7R 0-24
1
4.SE-06
79
74%
10%
8%
8%
RM 1.8 #0R1 8RO-14
1
4.7E-06
80
70%
8%
8%
14%
RM 1.4 #OR MM 0-13
1
4.7E-06
SI
63%
8%
8%
21%
RM 3.7 #OR3,7RO-24
2
4.7E-06
82
71%
14%
4%
10%
RM 3 #OR 3.0R 0-24
1
4.7E-06
83
NA
76%
6%
6%
RM 4.5 #OR4.5L0-24
2
4.6E-06
84
60%
15%
3%
22%
RM 1.7 #OR 1.7L 0-23
1
4.6 E-06
85
79%
9%
8%
4%
RM 0.9 #ORO,9M 0-9
1
4.6E-06
86
62%
9%
9%
19%
RM 0.8 0ORO.8LO1O
1
4.6E-06
87
72%
9%
9%
10%
RM 1.2 #OR 1.2RO-12
1
4.6E-06
88
61%
8%
8%
22%
RM 1.1 #OR 1.1LO-23
I
4.5E-06
89
69%
8%
8%
1$%
RM 2.2 #OR2,2RO-24
I
4.5E-06
90
72%
5%
4%
17%
RM 3.3 #OR3.3LO-21
2
4.4 E-06
91
71%
14%
4%
11%
RM 0.7 #OR 0.7L0-13
1
4.4E-06
92
73%
9%
9%
9%
RM 1.4 #OR 1.4L0-19
1
4.4 E-06
93
68%
9%
9%
14%
RM 0.5 #OR 0.5RO-22
1
4.3E-06
94
71%
9%
9%
10%
RM 0.9 #OR0.9L 0-14
1
4.3E-06
95
72%
9%
9%
10%
RM 1 #OR 1.0M 0-18
1
4.3 E-06
96
63%
9%
9%
19%
RM 0.6 #OR0.6M 0-10
1
4.3E-06
97
70%
10%
10%
10%
RM 1 #OR 1.0C 0-22
I
4.3E-06
98
74%
8%
8%
10%
RM 1.1 #OR 1.1M 0-24
1
4.2E-06
99
65%
9%
9%
16%
RM 1.7 4OR1.7M0-15
1
4.2E-W
100
72%
9%
9%
10%
RM 0.4 #OR 0.4M 0-10
1
4.1 E-06
10 r
73%
9%
9%
8%
RM 2.4 #OR2.4L0-24
1
4.1 E-06
102
71%
6%
5%
18%
RM 1.2 #OR 1.2L0-12
1
4.1 E-06
103
61%
9%
9%
21%
RM 0.6 #OR 0.6R0-24
I
4.1 E-06
104
68%
10%
10%
12%
RM 0.5 # MENW04
1
4.0E-06
105
100%
NA
NA
NA
RM 0.4 #OR 0.4R 0-24
1
3.9E-06
106
87%
8%
2%
2%
RM 7.5 #OR7.5 0-24
4
3.9E-06
107
59%
19%
6%
16%
RM 3.9 #OR3.9RO-22
2
3.8E-06
108
77%
11%
2%
9%
RM 0.3 #OR0.3R0-24
1
3.8E-06
109
86%
8%
2%
3%
RM 0.5 #OR 0.5M 0-10
1
3.8 E-06
110
68%
10%
10%
12%
RM 0.5 0ORO.5LO-24
1
3.8E-06
111
73%
9%
9%
S%
RM 2.9 #OR 2.9M 0-24
1
3.7E-06
112
70%
21%
6%
3%
RM4.1 #OR4.lM
-------
Table 5-16. Summary °f Sample-Specific Estimated Cancer Risks
for Sediment, Recreator Scenario (Including Nondetected COls)- Sorted by Estimated Cancer Risk
RJvĢr Mile ud
Segment Recreator
BtfP
Total
Ssnple No.
No. Caacer Risk Ruk
Ariealc
Equivalent
n-propyUmtae
PCB*
RM 4 #OR 4.OR 0-10
2 3.4E-06 121
6S%
14%
2%
16%
RM 0.1 #OR 0.1R0-24
1 3.4E-06 122
85%
S%
2%
4%
RM1.3 <* MENW09
I 3.4E-06 123
100%
NA
NA
NA
RM2.8 # MENW20
1 J.3E-06 124
100%
NA
NA
NA
RM 2.7 #OR2.7LO-24
1 3.3E-06 125
85 V.
8%
2%
4%
RM 6.9 #OR 6.90-20
4 3.3E-06 126
40%
21%
7%
32%
RM0.1 ffORO.lLO-12
1 3.2E-06 127
34%
9%
3%
4%
RM 4.2 # ENW27
2 3.2E-06 128
NA
47%
41%
5%
RM 3.1 #OR3.1LO-24
I 3.1E-06 129
85%
10%
3%
1%
RM 1.9 *OR1.9L 0-24
J 3.18-06 130
80%
6%
5%
8%
RM 5.9 ~#OR 5.9 0~24
3 3.Te-06 "ili
*88%
6%'
2%""*
4%"""
RM 2.5 # MEN WO 1
t 2.8E-06 132
100%
NA
NA
NA
RMS *OR5.0M0-12
3 2.7E-06 133
49%
29%
8%
13%
RM 6.1 .# MENW27
1 2.7E-06 134
100%
NA
NA
NA
RM3.6 #OR3.6L 0-24
2 2.6E-06 135
81%
13%
4%
2%
RM 5.8 #MENW37
3 2.6E-06 136
100%
NA
NA
NA
RMS.l #OR 5.1 0-18
3 2.5E-06 137
53%
30%
9%
7%
RM2.6 ģOR2.6LO-24
I 2.5B-06 138
53%
30%
9%
7%
RM 2.5 #OR2.5LO-24
1 2.5E-06 139
64%
7%
6%
22%
RM 3.5 #OR3.5M 0-24
2 2.4E-06 140
90%
7%
2%
1%
RM 2.9 #OR2.9RO-24
1 2.4E-06 141
79%
11%
3%
6%
RM 7.1 #OR 7.10-23
4 2.4E-06 142
88%
8%
2%
1%
RM 5.5 #OR5.50-16
3 238-06 143
50%
33%
10%
8%
RM 5.1 # M8NW32
3 2.38-06 144
100%
NA
NA
NA
RM 2 # MCNW14
1 2.3E-06 145
100%
NA
NA
NA
RM4.I 0MENW3O
2 2.38-06 146
100%
NA
NA
NA
RM 7,6 # MBNW44
4 2.2E-06 147
100%
NA
NA
NA
RM2.5 #MBNW1Ģ
1 2.2B-06 148
100%
NA
NA
NA
RM2 6 #OR2.6RO-24
1 2.2B-06 149
46%
32%
10%
12%
RM4.1 #MBNW39
3 2.28-06 150
100%
NA
NA
NA
RM1.3 0OR1JLO-1O
1 2.28-0$ 151
68%
14%
14%
3%
RM4.S # MHNW29
2 2.1&-06 152
100%
NA
NA
NA
RM8.8 0ORM
4 2.1B-06 1S3
NA
90%
3%
1%
RM 1.3 iMENWM
1 2.1B-06 154
100%
NA
NA
NA
RM2 #MBNW!2
1 2.0B-06 155
100%
NA
NA
NA
RM 3.6 # MENW22
2 2.08-0* 156
100%
NA
NA
NA
RM3.4 #OR3,4M0-24
2 2.08-06 157
87%
9%
3%
1%
RM 2.6 #OR2,6M 0-24
1 1.98-06 151
62%
16%
5%
17%
RM4.2 #OR4.2LO-24
2 1.9R-06 159
76%
15%
4%
4%
RM0.2 ģOR0,2L0-24
1 1.98-06 160
7S%
18%
5%
2%
RM2.5 # MBNW16
1 1.9E-06 161
100%
NA
NA
NA
RM3.6 MENWSI
2 1.98-06 162
100%
NA
NA
NA
RM4.2 # MBNW26
2 1.98-06 163
100%
NA
NA
NA
RM3.6 #BNW52
2 1.98-06 164
NA
64%
30%
4%
RM 3.6 # BNW24
2 1.9B-06 165
NA
64%
30%
4%
RM7.3 *0117.30-24
4 1.18-06 166
61%
19%
6%
15%
RM5.8 #0*5.80-24
3 1.88-06 167
>6%
10%
3%
1%
RM 5.8 # MENW35
3 1.8B-06 168
100%
NA
NA
NA
RM 5.7 ģMBNW49
3 1.88-06 169
100%
NA
NA
NA
3 1.IB-06 170
80%
14%
4%
2%
RM7 #0*7.0*24
4 1.18-06 17)
86%
10%
RM2.5 #HNW35
1 1.78-06 172
NA
52%
37%
8%
RMOJ 9OR0JL0-24
1 1.78-06 173
72*
20%
6%
3%
RM3.6 #MBNW23
2 1.6B-06 174
100%
NA
NA
NA
RMS.l #MBNWS4
3 1.68-06 175
100%
NA
NA
NA
RM6.1 #0*6.10-24
3 1.68-06 176
84%
11%
3%
1%
RM8.J KMBNW45
4 l.SB-06 177
100%
NA
NA
NA
RM 3.3 #0*3.3M 0-24
2 1.58-06 178
83%
12%
3%
2%
RM 1.3 # MBKW08
1 1.4B-06 179
100%
NA
NA
NA
RM4J #OR4JL0-20
2 1.4B-06 ISO
78%
13%
4%
5%
RM2.8 #O*?.8*0>24
1 1.48-06 181
69%
17%
5%
9%
hp 3 of 4
-------
Tabic 5-16. Summary of Sample-Specific kstimatcd Cancer Risks
for Sediment, Recreator Scenario (Including Nondetected COIs)- Sorted by Estimated Cancer Risk
River Mile and
Segment
Recreator
N'Mtrosonll
Total
Sample No.
No.
(aocer Risk
Raak
Arsenic
Equivalent
n-propyUmlae
PO'Bi
RMS.3 ģMENW47
4
1.2E-06
182
100%
NA
NA
NA
RM 2.7 ģOR 2.7R 0-24
1
I.2E-06
1 S3
v>%
23%
7%
I 1%
RM3.1 #OR 3.1M 0-24
1
1.1E-06
184
71%
21%
6%
3%
RM 5.85 ģUT DST R 0-24
3
1.0E-06
135
72%
20%
6%
3%
RM 7.2 t* MENW42
4
8.2E-07
186
100%
NA
NA
NA
RM 2.5 # MENW55
I
7.2E-07
187
100%
NA
NA
NA
RM 3.6 # MENW52
2
2.5E-07
188
100%
NA
N A
NA
RM 3.6 ģ MENW24
2
9.4E-08
189
100%
NA
NA
NA
NA Not analyzed
ND Not delected
hgĢ 4 of 4
-------
Table 5-17. Summary of Sample-Specific Estimated Cancer Risks
for Sediment, Recreator Scenario (Including Nondetected COIs)- Sorted by River Mile
Rtvtr Mlk u4
Stgmtai
Retreator
BaP
N'NIiroso^l
Toul
SiMpIt No.
No.
Cftictr Risk
Rģk
Aridlt
Equivalent
n-propylamlo*
PCBi
RM 0.1 #OR.O.!tO-I2
1
3.2E-06
127
84%
9%
3%
4%
RM 0.1 #ORO.lRO-24
1
3.4E-06
122
S5%
:%
4Ģ/ģ
RM0.2 #OR0.2L0-2i
1
1.9E-06
160
75%
1S%
5%
2%
RM 0.2 ĢOR 0.2MO-U
]
3.4E-06
119
84%
10%
3%
3%
RM 0.3 0ORO.3LO-24
1
1.7E-06
173
72%
20°-.
6%
3%
RM 0.3 *OR 0.3R0-24
I
3.SE-06
109
86%
8%
2%
3%
RM 0.4 *OR0.4L0-l2
1
J.5E-06
117
76%
10%
10%
4%
RM 0.4 #OR 0.4MO-10
1
4.1E-06
101
73%
9%
9%
8%
RM 0.4 #OR 0.4RO-24
i
3.9E-06
10*
87%
8%
2%
2%
RM0.5 #ENW01
I
6.3 E-06
44
NA
55%
38%
3%
RM 0.5 *ENW01MS
t
1.4E-05
23
NA
34%
62%
1%
RM 0.5 #BNW0)MSD
i
1.2E-05
27
NA
28%
68%
2%
RM 0.5 #ENW04
I
1.4B-05
22
NA
54%
42%
2%
RM 0.5 # MENW04
i
4.0E-06
105
100%
NA
NA
NA
RM 0.5 #OR0.5LO-24
i
3.8E-06
111
73%
9%
9%
8%
RM 0.5 #OR0.5M 0-10
1
3.8B-06
110
68%
10%
10%
12%
RM 0.5 #OR0.5R 0-22
1
4.3E-06
94
71%
9%
9%
10%
RM0.6 #OR 0.6M 0-10
l
4.3 E-06
97
70%
10%
10%
10%
RM0.6 #OR0.6RO-24
i
4.1E-04
104
68%
10%
10%
12%
RM 0.7 #OR0.7L0-13
1
4.4E-W
92
73%
9%
9%
9%
RM0.7 4OR0.7M0-11
i
4.9&-W
""a
70%
g%"
8%
13%
RM0.I #OR0.SL0-10
i
4.6E-04
87
72%
9%
9%
10%
RM0.8 #OR0.IM0-10
i
4.9B-04
77
68%
8%
8%
15%
RM0.S #ORO,8RO-24
i
5.4 E-W
41
80%
7%
7%
5%
RM0.9 #OR0.9L0-14
1
4.3 E-W
95
72%
9%
9%
10%
RM0.9 0ORO.9M 0-9
I
4.6B04
84
62%
9%
9%
19%
RM 1 0OR1.OLO-22
l
4.3B-04
91
74%
t%
8%
10%
RM 1 #OR1.0M0-18
1
4.3 B-W
94
63%
9%
9%
19%
RM1 1 .OR 0-22
i
3.5E-W
115
76%
10%
10%
5%
RM 1.1 #ORl.lLO-23
l
4.5E-W
19
69%
8%
8%
15%
RM 1.1 #ORI.lMO-24
l
4.2B-W
99
65%
9%
9%
16%
RM 1.1 #OR 1.1R0-20
1
5.1B-04
71
68%
t%
8%
17%
RM U #OR!.2f.0-t2
1
4.1B-0$
103
4)%
9%
9%
21%
RM 1.2 #OR 1.2R1S
l
5.0B-06
n
65%
8%
t%
18%
RM1.5 KHlUltO-ll
1
5.2B-W
ĢĢ
47%
8%
1%
18%
RM 1.7 #OR1.7L0-23
t
4.6E-06
ts
79%
9%
1%
4%
RM 1.7 #OR1.7M0-15
1
4.2B-06
100
72%
9%
9%
10%
RM 1.7 #0*1.7*0-24
t
4.IB-04
79
74%
10%
8%
8%
RM1.S #ORl.8LO-24
1
4.9B-04
75
67%
t%
1%
17%
RMl.t *O*l.lM0-16
1
3.48-06
57
<3%
7%
7%
23%
RMl.t 0*1.9*004
l
4.78-04
to
70%
t%
8%
14%
RM 1.9 #ORl,9L0-24
1
3.1B-04
130
to%
6%
5%
t%
RM2 0BNW12
1
2.0B-05
U
NA
65%
32%
1%
RM2 ĢBNW14
1
1.5E-05
21
NA
57%
37%
2%
RM2 #MBNW12
1
2.0B-04
135
100%
NA
NA
NA
RM2 #MENW14
l
2.3B-W
145
100%
NA
NA
NA
Pig* 1 of*
-------
Table 5-17. Summary of Sample-Specific Kstimated Cancer Risks
for Sediment, Recreator Scenario (Including Nondetccted COIs)- Sorted by River Mile
River Mil* and
S*Ģp|i
f No.
Segment
No.
Recreator
(.'anctr Risk
Rank
B*P
Equivalent
RM 2 #OR 2.0L 0-20
RM 2.1 #OR 2. IM 0-24
RM 2.2 #OR2.2LO-24
RM 2.2 #OR2.2MO-22
RM 2.2 ģOR 2.2R 0-24
RM 2.3 #OR2.3LO-24
RM 2.3 )#OR2.3RO-24
RM 2.4 ffOR2.4LO-24
RM 2.4 f*OR 2.4M 0-24
RM2.5 # ENW16
RM *2' 5 # ENW *18
RM 2.5 # ENW55
RM 2.5 0 MENW01
RM2.5 #MENW16
RM 2.5 # MENW 18
RM 2.5 # MENW55
RM 2.5 #OR2.5LO-24
RM 2.5 #OR2.5MO-24
RM 2.5 #OR 2.5RO-24
RM 2.6 #OR2.6L0-24
RM 2.6 #OrT.6M (>-24
RM 2.6 #OR 2.6R0-24
RM 2.7 #OR2.7L0-24
RM 2.7 0OR2.7MO-24
RM 2.7 ģOR2.7R0-24
RM 2.8 # ENW20
RM 2.8 # MENW20
RM2.8 ĢOR2.8LO-24
RM 2.8 #OR2.8M 0-24
RM 2.8 #OR2.8ROģ24
6.4E-06
5.6E-06
S.5E-06
7.2E-06
4.5E-06
3.4E-06
5.7E-06
4.1E-06
9.5E-06
1.5E-05
8.7E-06"
1.7E-06
2.3E-06
1.9E-06
2.2E-06
7.2E-07
25E-06
5.4E-06
5.1E-06
2.5E-06
~Y.9E-06
2.2E-06
3.3E-06
3.4E-06
1.2E-06
3.5E-05
3.3E-06
5-0E-06
5.2E-06
1.4E-06
N -.NJfroso-dJ
n-propylailne
43
M
S 6
40
90
120
SO
102
31
20
33
172
132
161
148
I 37
139
60
70
138
158 "
149
125
118
183
5
124
74
67
111
46%
70O/.
70%
44%
72%
77%
70%
71%
33%
NA
*NA
NA
100%
100%
100%
100%
64%
71%
68%
53%
62%
46%
85%
84%
59%
NA
100%
66%
54%
69%
' 66%"
70%
79%
63%
59%
NA
85%
71%
53%
65%
70%
71%
83%
61%
64%
87%
61%
71%
90%
NA
i:%
16°.
7%
47%
\%
6%
16%
6%
60%
53%
51%
52%
NA
NA
NA
NA
7%
8%
9%
30%
16%
32%
8%
9%
23%
62%
NA
24%
43%
17%
21% *
21%
11%
26%
27%
76%
10%
21%
15%
24%
14%
14%
12%
19%
18%
9%
22%
19%
7%
65%
12%
7%
7%
3%
4 %
6%
6%
5%
4V.
...42%
44%"
37%
na
na
NA
NA
6%
7%
7%
9%
'*5%'"
10%
2%
3%
7%
35%
NA
7%
1%
3*
6%
6%
3%
7%
1%
6%
3%
6%
5%
...I*
"4%"
4%
3%
6%
5%
3%
7%
6%
2%
32%
ToiĢj
PCB<
29%
8%
15%
6%
17%
10%
7%
18%
3%
2%
S%
na
na
Na
na
22%
14%
15%
7%
77%*'*
12%
4%
3%
11%
1%
NA
3%
2%
9%
7%
3%
6%
3%
7%
Ģ%
1%
3%
27%
4%
Ti%*
11%
2%
u%
12%
1%
10%
4%
1%
. 1%
4%'
4%
4%
4%
na
na
Na
na
na
2%
RM 2.9 #OR2.9L0-24
RM2.9 #OR2.9MO-24
RM 2.9 #OR 2.9110-24
RM3 #OR3.0LO-24
RM 3 #OR3.0M 0-24
RM 3 IVOR3.OR0-24
RM3.1 #OR3.1L0-24
RM 3.1 0OR3.1MO-24
RM 3.1 #OR3.1R0-24
RM3.2 #OR3.2MO-23
RM3.3 #OR3.3LO-21
RM 3.3 #OR3.3M 0-24
RM3.3 #OR3.3R0-24
RM3.4 #OR3.4L0-24
RM 3.4 #OR3.4M 0-24
RM3.4 #OR3.4RO-24
RM 3.5 #OR3.5LO-22
RM3.5 iOR3.5MO-24
RM 3.6 # BNW22
5.3E-06
3.7E-06
2.4E-06
5.5E-06
5.5E-06
4.7E-06
3. IE-06
1.1E-06
6.9E-06
6.2E-06
4.9E-06
4.4E-06
I.5E-06
5.4E-06
5.5E-06
2.0E-06
6.0B-06
3.5E-06
2.4E-06
2.8E-05
64
112
141
53
55
83
129
184
42
4$
*76
91
178
63
52
157
41
114
140
7
RM 3.6 #BNW23
RM 3.6 #BNW24
RM 3.6 #BNW51
RM3.6 #BNW52
RM 3.6 #MENW22
RM 3.6 0 MBNW23
RM3.6 0MENW24
RM 3.6 # MENW51
RM3.6 *MENW52
RM3.6
-------
Table 5-17. Summary of Sample-Specific Estimated Cancer Risks
for Sediment, Recreator Scenario (Including Nondetected CO Is)- Sorted by River Mile
Rfrtr Mtk aad S*
tat Rģ
-------
Table 5-17. Summary of Sample-Specific Kstimated Cancer Risks
for Sediment, Recreator Scenario (Including Nondelected COIs)- Sorted by River Mile
River Mtk and
Segment
Recreator
BģP
N-Nltrojo-dl
Total
Sample No.
No.
Cancer Risk
Rank
Arsenic
Equivalent
n-propvUmlne
PCB$
RMS.3
ĢENW47
4
1.1 Ŗ-05
:s
SA
6S%
30%
2%
RMS-3
ģ MENW45
4
1.5E 06
177
100*4
NA
NA
NA
RM 8.3
* MENW47
4
1.2E-06
1S2
100%
\A
NA
NA
RM8.3
"OR 8.3 0-19
4
9.5E-06
32
25%
21%
1%
53%
RMS.4
#OR 8.4
4
7.2E06
39
35%
61%
1%
3%
RM 8.5
#OR 8.5
4
7.5E-06
36
92%
3%
1%
4%
RMS.6
COR 8.6
4
5.4E-06
62
20%
77%
2%
1%
RM 8.7
SOR8.7
4
5.8E-06
49
24%
71%
1%
3%
RM 8.8
#OR 8.S
4
2.1E-06
153
NA
90%
3%
t%
NA Not analyzed
ND Not detected
Hge 4 of 4
-------
6.0 Conclusions and R ecovlmendations
The results of this screening-level human health risk assessment for the Lower Ottawa River
provide information to address questions regarding possible health hazards to individuals who
recreate in the Lower Ottawa River or who catch and consume fish from the river. Based on
the methods and assumptions described in this report, the following observations and
recommendations can be made:
Based on detected concentrations of chemicals in surface sediments and surface water
in the Lower Ottawa River, upperbound lifetime excess cancer risks to individuals
who swim, wade, or engage in other recreational activities in the Lower Ottawa River
may approach 1 * 10"4 for individuals who come in contact with the river frequently
(e.g., 24 to 48 times per year, for several hours per event). However, cancer risks to
individuals who come in contact with the river less frequently may not be significant.
Estimated cancer risks are dominated by N-nitroso-di-n-propylamine,
pentachlorophenol, and PAHs.
Based on detected concentrations of chemicals in surface sediments and surface water
in die Lower Ottawa River, noncarcinogenic health effects from exposure to these
contaminants to individuals who swim, wade, or engage in other recreational activities
in the Lower Ottawa River are not expected.
Ģ Many of the COls in surface water and sediment, including N-nHroso-dt-n-
propylamine, pentachlorophenol, and PAHs, were detected infrequently.
Consequently, a substantial fraction of die estimated risks to recreators associated with
exposure to surface water and sediment is based on concentrations estimated from
one-half of these chemicals' limits of detection. Further, several other chemicals,
particularly in surface water, were not detected but had limits of detection that
exceeded risk based concentrations. Therefore, significant uncertainties about the
estimated risks associated with exposure to sediments and surface water in the Lower
Ottawa River exist, due to uncertainties about die actual concentrations of chemicals
in sediment and surface water.
Based oil detected concentrations of chemicals in fish in the Lower Ottawa River used
in this HHRA, lifetime excess cancer risks to individuals who catch and consume a
moderate amount of fish from the Lower Ottawa River (e.g., 10 half pound meals per
year, year after year) may be significant For those who consume fish from die river
frequently (e.g., 60 half-pound meals per year, year after year), the lifetime excess
cancer risks are estimated to exceed 1 * 10'3. Noncarcinogenic health effects of fish
consumption were estimated to be significant for both the frequent and moderate
levels of consumption.
Based on detected concentrations of PCBs in fish in the Lower Ottawa River used in
this HHRA, most fish in the river of die size and species likely to be caught for human
consumption have concentrations of PCBs exceeding Great Lakes Fish Advisory Task
Force advisories for limited consumption (e.g., one meal every two months).
^ Printed on recycled paper
111
-------
For all scenarios, estimated cancer risks and noncancer hazards were highest in river
Segments 1 and 3 (RM 0 to <3.2 and RM 4.9 to <6.5). Estimated cancer risks and
noncancer hazards for the other two river segments were slightly lower.
It is recommended that frequent and prolonged contact with Lower Ottawa River
surface water and sediment {e.g., more than 24 to 48 3-hour contacts per year, year
after year) be avoided.
Continuing measures to discourage or prohibit consumption of fish from the Lower
Ottawa River are recommended.
Surface water COIs were detected at only five of the 21 surface water sample
locationsat RM 0.5, 2.5, and 4.8. The highest estimated cancer risks for surface
water for the recreator scenario were associated with samples collected at RM 0.5.
Eight of the surface water COIs (2-chlorophenol, 4,4'-DDT, aldrin, dieldrin, gamma-
BHC, heptachlor, N-nitroso-di-n-propylamine, and pentachlorophenol) were only
detected in surface water at this location and of these, seven were also detected at their
highest sediment concentrations at this location. Consequertly, RM 0.5 may represent
a hot spot for these compounds.
The highest estimated cancer risks for sediment for the recreator scenario were
associated with a sample collected at RM 5.86 (in Segment 3), in the vicinity of the
mouth of the former Unnamed Tributary. The highest PCB sediment concentrations
were measured at this location (156 mg/kg total PCBs in die 0"-24" layer).
Examination of data for nearby locations suggests that these elevated PCB
concentrations are extremely localized, since total PCB concentrations at nearby
locations are much lower. Surface sediment PCB concentrations at other locations in
the river are considerably lower (less than 10 mg/kg, and in most cases less than 5
mg/kg).
Printed on recycled paper
112
-------
7.0 References
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Registry. ATSDR/U.S. Public Health Service.
ATSDR , 1992b. Toxicological Profile for p.p'-DDT, DDE, DDD. Agency for Toxic Substances
and Disease Registry). ATSDR/U.S. Public Health Service.
ATSDR , 1993a. Toxicological Profile for Aldrin/Dieldrin . Agency for Toxic Substances and
Disease Registry. ATSDR/U.S. Public Heakh Service.
ATSDR , 1993b. Toxicological Profile for Heptachlor/ Heptachlor Expoxide. Agency for T oxic
Substances and Disease Registry. ATSDR/U.S. Public Health Service.
ATSDR, 2000. Public Health Implications of Exposure to Polychlorinated Biphenyls (PCBs).
Agency for Toxic Substances and Disease Registry. Online at www.atsdr.cdc.gov.
ATSDR, 2001. Minimal Risk Levels for Hazardous Substances. Agency for Toxic Substances
and Disease Registry. April. Online at http://www.atsdr.cdc.gov/mrlsJitml.
Bettley, F.R., O'Shea, J.A. 1975. The absorption of arsenic and its relation to carcinoma. Br. J.
Dermatology. 92:563.
CalEPA, 1997. Consumption of Fish and Shellfish in California and the United States, Final
Draft Report. Office of Environmental Health Hazard Assessment, California Environmental
Protection Agency. July.
Goyer, R.A. 1991. Toxic Effects of Metals. In: Casarett and Doull's Toxicology: The Basic
Science of Poisons, fourth edition. M. O. Ammdur, J. Doull, and C.D. Klaassen, eds. pp. 623-
680.
Great Lakes Sport Fish Advisory Task Force, 1993. Protocol for a Uniform Great Lakes Sports
Fish Consumption Advisory. September.
Hushak, L., 2000. Final Report: Survey of Recreational Boater Safety in Ohio during 1999.
Submitted to Division of Watercraft, Ohio Department of Natural Resources. The Ohio Sea Grant
College Program.
OEPA, 1993. Phase I Ottawa River Fish and Macroinvertebrates Data. Ohio Environmental
Protection Agency.
OEPA, 1994. Phase I Ottawa River Surface Sediment Screening Data. Ohio Environmental
Protection Agency.
OEPA, 1998. Sediment Data for the Lower Ottawa River. Ohio Environmental Protection
Agency.
OEPA, 1999. Lake Erie Basin Aquatic Life and Human Health Tier I Criteria, Tier II Values and
Screening Values (SV) contained in and developed pursuant to Chapters 3745-1 and 3745-2 of the
Ohio Administrative Code. Ohio Environmental Protection Agency. Online at
http://www.epa.state.oh.us/dfrw/wqs/erieval6.pdf
OEPA, 2000. Sediment, Surface Water, and Fish Tissue of the Ottawa River 1999. Ecological
Assessment, Division of Surface Water, Ohio Environmental Protection Agency. OEPA
Technical Report MAS/2000-2-1. February.
Printed on recycbd paper
113
-------
RAIS, 2001. Chemical Specific Factors. Oak Ridge National Laboratory, Risk Assessment
Information System. June. Obtained at Imp:-'/risk.Isd.ornI.now
Rahman, A., J. A. Barrowman and A. Rahimtula. 1986. The influence of bile on the bioavailability
of polynuclear aromatic hydrocarbons from the rat intestine. Can. J. Physiol. Pharmacol.
64:1214-1218.
Sabourin, P.J., B.T. Chen, G. Lucier, et al. 1987. Effects of dose on the absorption and excretion
of [14C]benzene administered orally or by inhalation in rats and mice. Toxicol. Appl. Pharmacol.
87:325-336.
Taylor, J. K. 1987. Quality Assurance of Chemical Measurements. Lewis Publishers, Chelsea,
MI.
Teirlynck, O.A. and J. Belpaire. 1985. Disposition of orally administered di(2-
ethylhexyl)phthalate and mono(2-ethylhexyl)phthalate in the rat. Arch. Toxicol. 57(4):226-230.
U.S. EPA, 1989. Risk Assessment Guidance for Superfund (RAGS), Volume I. Human Health
Evaluation Manual. Part A. Interim Final. Office of Solid Waste and Emergency Response,
United States Environmental Protection Agency. Washington, D.C. EPA/540/1-89/002.
December.
U.S. EPA, 1990. National Contingency Plan. United States Environmental Protection Agency.
Washington, D.C.
U.S. EPA, 1991a. Human Health Evaluation Manual, Supplemental Guidance: Standard Default
Exposure Parameters. Office of Solid Waste and Emergency Response, United States
Environmental Protection Agency. Washington, D.C. June.
U.S. EPA, 1991b. Role of the Baseline Risk Assessment in Superfund Remedy Selection
Decisions. Office of Solid Waste and Emergency Response, United States Environmental
Protection Agency. Washington, D.C. OSWER Directive 9355.0-30. April 22.
http://www.epa.gov/oerrpage/superfund/programs/risk/baseline.pdf
U.S. EPA, 1992a. Dermal Exposure Assessment: Principles and Applications. Office of
Research and Devebpment, United States Environmental Protection Agency. Washington, D.C.
EPA/600/8-91/01 IB. January.
U.S. EPA, 1992b. Guidance for Data Useability in Risk Assessment. Part A, Final. Office of
Emergency and Remedial Response, United States Environmental Protection Agency.
Washington, D.C. April.
U.S. EPA, 1992c. Supplemental Guidance to RAGS: Calculating the Concentration Term. Office
of Solid Waste and Emergency Response. Washington, D.C. May.
U.S. EPA, 1993. Provisional Guidance for Quantitative Risk Assessment of Polycyclic Aromatic
Hydrocarbons. United States Environmental Protection Agency. EPA/600/R93/089, July.
U.S. EPA, 1995. Final Water Quality Guidance for the Great Lakes System. United States
Environmental Protection Agency. Federal Register, March 23. Online at
http://www.epa.gov/fedrgstr/EPA-WATER/1995/March/Day-23/pr-82.html
U.S. EPA, 1996. PCBs: Cancer Dose-Response Assessment and Application to Environmental
Mixtures. National Center for Environmental Assessment, Office of Research and Development,
United States Environmental Protection Agency. Washington, D.C. September.
Printed on recyckd paper
114
-------
U.S. EPA, 1997a. Exposure Factors Handbook. Office of Research and Development, United
States Environmental Protection Agency. Washington, D.C. EPA/600/P-95/002/Fa. August.
U.S. EPA, 1997b. Guidance for Assessing Chemical Contaminant Data for Use in Fish
Advisories. Volume 2: Risk Assessment and Fish Consumption Limits. United States
Environmental Protection Agency, Washington, D.C. EPA/823-B-97-009. July.
U.S. EPA, 1999. National Recommended Water Quality CriteriaCorrection. Office of Water,
United States Environmental Protection Agency. EPA 822-Z-99-001. April.
U.S. EPA, 2000. Risk Assessment Guidance for Superfund, Volume I: Human Health Evaluation
Manual (Part E. Supplemental Guidance for Dermal Risk Assessment), Interim Guidance. Office
of Emergency and Remedial Response, United States Environmental Protection Agency.
Washington, D.C.
U.S. EPA, 2001a. The Integrated Risk Information System (IRIS). United States Environmental
Protection Agency, Washington, D.C. Online at http:/www.epa.gov/iris/intro.htm
U.S. EPA, 2001b. Integrated Exposure Uptake Blokinetic Model for Lead in Children. Technical
Review Workgroup for Lead. United States Environmental Protection Agency.
U.S. EPA, 2001c. National Primary Drinking Water Standards (40CFR141). Office of Water,
United States Environmental Protection Agency, Washington, D.C. Online at
http://www.epa.gov/safewater/mcl.html
U.S. EPA Region III, 1995. Assessing Dermal Exposure from Soil. Hazardous Waste
Management Division, United States Environmental Protection Agency. EPA/903-K.-95-003.
Obtained online at http://www.epa.gov/reg3hwmd/risfc'solabsg2.htm
U.S. EPA Region III, 2000. EPA Region III Risk Based Concentration Table. Philadelphia, PA.
Updated October 5. Online at http://www.epa.gov/reg3hwmd/risk/riskmemi.htm.
U.S. EPA Region IV, 2000. Region 4 Human Health Risk Assessment BulletinsSupplement to
RAGS. United States Environmental Protection Agency. Updated May 30.
U.S. EPA Region VI, 1998. Region 6 Interim Strategy: Arsenic- Freshwater Human Health
Criterion for Fish Consumption. United States Environmental Protection Agency.
U.S. EPA Region IX, 2000. EPA Region IXPreliminary Remediation Goals. San Francisco, CA.
Updated Aug. 28. Online at http://www.eoa.gov/region09/waste/sfimd/prg/index.html
U.S. FDA, 1998. Action Levels For Poisonous Or Deletrious Substances In Human Food and
Animal Feed. United States Food and Drug Administration. Obtained at
http://vm.cfsan.fda.gOv/~lrd/fdaact.html#merc
West, P.C., Fly, J.M., Larkin, F and Marans, R. 1992. Minority anglers and toxic fish
consumption-evidence from a statewide survey of Michigan. In: Bryant, B., Mohai, P. (eds.)
Race and the Incidence of Environmental Hazards: A Time for Discourse. Boulder CO:
Westview Press. p 100-113.
West, P.C., Fly, J.M., Marans, R., Larkin, F., and Rosenblatt, D. 1993. 1991-1992 Michigan
Sport Anglers Fish Consumption Study: Final Report to the Michigan Department of Natural
Resources. University of Michigan School of Natural Resources, Natural Resource Sociology
Research Lab. Ann Arbor, MI: Technical Report No. 6. May.
Printed on recycbd paper
115
-------
APPENDIX A
Selection of Chemicals of I nterest for the
Lower Ottawa River Human Health Risk Assessment
Printed on recycled paper
-------
TĢkk A-l. Clwekal Data u4 CCH SeUcttoa Criteria for Aaalytea la Seilamt, Lower Ottawa River Hamaa Health Rifk Ataeuneat
rttqwcjr
lUagaof
RMģ Bmi.J
r
Mlalmai
Mulaia
DOkVdiIMIi
CoacmtraUoa
Meet
Olnl
CAS No.
Dilnin
(>W*0
-**>
(Ļ**0
("8/kj) <ģģ>>)
M COI?
l,l'-BipWoyl
92-52-4
0/36
ND
ND
0.4-13
350
No (not delected)
l^,4-Trichlo(Bfa*ajea*
12&-S2-1
0/121
ND
ND
0.021 - 16
650
No (not delected)
1^-Dicfcluwhww
95-50-1
(VI21
ND
ND
0.03 - 2.3
370
No (not delected)
U-PiiUiiliwii
341-73-1
0/121
ND
ND
0.035 - 2.7
13,0
No (nol detected)
106-46-7
a/121
ND
ND
0.022 - 1.7
3.4
No (not detected)
2^-Oql>x criteria)
2,<6-1bdieieph*el
18-06-2
0/157
ND
ND
0.022 - 13
44
No (nol delected)
2.4-PiiUiiiutfcĢiiil
12043-2
0/157
ND
ND
0.032 - 13
180
No (not delected)
2.4-Dilwi
606-20-2
0/157
ND
ND
0.04 - 13
61
No (not detected)
l-aOonaaMkalnB
91-$ģ-7
0/157
ND
ND
0.016 - 13
390
No (not delected)
2-Clilnrnflnl
95-57-8
4/157
ND
4.5
0.036- 13
63
No (less than RIU')
2-naanMpiMByi
321-60-8
120/121
ND
4.3
NA
NA
No (no tox critcrij)
2-HuonptaMi
367-12-4
120/121
ND
5.4
NA
NA
No (no lux criUriu)
2 >llHglM|Miiliin
91-57-6
a/157
ND
ND
0.02 -13
NA
No (nol delected)
2 IlllWihill
95-41-7
0/157
ND
ND
0.039 - 13
3100
No (not delected)
2-NfcwoOiM
88-74-4
0/157
ND
ND
0.032 - 34
3.5
No (not detected)
XVINfBMI
18-75-5
0/157
ND
ND
0.032 - 13
490
No (not delected)
3,3'-DģcMĢrtiĢTi*Ģģ
91-94-1
0/157
ND
ND
0.036 - 13
1.1
No (not delected)
.1 Hiilqģ>nl * *-UģĢty1phĢool
108-39-4 A 106-44-3
0/30
ND
ND
0.24 - 0.7
310
No (nol detected)
3-MimiMiHaģ
99-09-2
0/157
ND
ND
0.039 - 34
3.5
No (not delected)
4/T-DOO (p#-)
72 54-8
20/36
ND
0.04
0.004 - 0.01
2.4
No (less than RBC)
4,4'-DOB (WJf-)
72-55-9
21/36
ND
0.055
0.004 - 0.01
1.7
No (less than KBC)
4,4"-DDT (w/-)
$0-29-3
12/39
ND
0.04
0.002 - 0.01
1.7
No (less than RliC")
4MiaM4Ģlo4inil (DNOC)
534-52-1
0/157
ND
ND
0.032 - 34
7.8
No (nol detected)
4-Rromaghaal ptaajl 4*r
101-53-3
mn
ND
ND
0.029 - 13
NA
4-Chioio-3 ItqdjilMti)
59-50-7
mn
ND
5.1
0032 - 13
3100
No (less than KiiC'l
106-47-8
mn
ND
ND
0.035 - 13
240
No (not detected)
7005-72-3
mn
ND
ND
0.021 13
NA
No (not deU-clcd)
1 of 5
-------
Table A-l. Chemical Data and COI Selection Criteria for Analytec In Sediment, Lower Ottawa River Human Health Risk Assessment
Fteqaaacy
Raage of
Rlik-Bated
of
Mialmm
Maxlaam
Detection UntU
CoiccalnlloB
Select
Cfcmilfl
CAS No.
Detection
(Ļģ*Ģ)
mf/kg)
(mg/kg)
(mg/kf) (*,b)
u COI '.'
4-Methyiphrool
106-44-5
4/132
ND
2.6
0.039- 13
310
No (less llun KI3C)
4-Nitroniiline
100-01-6
0/157
ND
ND
0.065 - 34
3.5
No (not delected)
4-Nitrophanol
10(W)2-7
4/157
ND
5.1
0.048 - 34
490
No (less than RI3C)
Aceaiphthec*
83-32-9
VI57
ND
3.4
0.022 - 13
3700
No (less than KBC)
Aceruphthyien*
208-96-8
0/157
ND
ND
0.02 - 13
2300
No (not deux led)
Acetophonooe
98-86-2
0/36
ND
ND
0.4 - 13
0.49
No (not delected)
Akbin
309-00-2
25/39
ND
0.054
0.00085 - 0.0033
0.029
Ya
ilpta-Bcnzcne houchloride (a-BHC)
319-84-6
1/36
ND
0.0039
0.0021 -0.0052
0.09
No (less dun KJH")
ilpitt-Chlortkno
5103-71-9
22/36
ND
0.019
0.0021 - 0.0052
1.6
No (less llun KbC)
Aluminum
7429-90-5
32/32
1030
21100
NA
76000
No (less than KHC)
Aitincene
120-12-7
6/157
ND
4.1
0.027 - 13
22000
No (less than KBC)
Antimony
7440-36-0
9/32
ND
2.3
0.52 - 1.4
31
No (less than klt(')
Anenic
7440-38-2
151/153
ND
30.1
0.57 - 1.5
0 39
Ya
Attains
1912-24-9
0/36
ND
ND
0.4 - 13
2.2
No (not detected)
Barium
7440-39-3
150/153
ND
252
0.35-0.43
54(H)
No (less t)uu IU1C)
Bomkiehyde
100-52-7
0/36
ND
ND
0.4 - 13
6100
No (not delected)
Bcmo(*)adhiacane
56-55-3
37/157
ND
9
0.043 - 13
0.62
YĢ
BoB!o
-------
Tabic A-l. Cbcnkal Data aad COI Sdectto* Criteria for Amalytei li Sedimcat, tower Ottawa River Hwnaa Health Risk Aunimcnt
Fnqawcy
Rai(*of
Bhk Bated
ct
Mlataaa
Maitaaa
DatwHoa Uafti
Coacaatratioa
Select
Cliariril
CAS N*.
Matin
(Ļ**>
-aw
(-c*c)
(mt/kj) (*J>)
Ļi COI?
Coh.it
7440-48-4
32/32
0.62
it.i
NA
4700
No (less than RBC)
Cofjar
7440-50-1
32/32
1.1
172
NA
2900
No (less than RBC)
Cyaadi
57-12-5
32/32
0.06
l.t
NA
11
No (less than RBC)
^ - _a.i l ..J
2051-24-3
121/122
ND
0.15
NA
NA
No (no to* criteria)
iMIi TThiiiii lģm lilniiti frt mtr)
319464
4/36
ND
0.019
0.0021 -0.0052
0.09
No (less than KBC)
PgiM^ģJi)wiltiniini
53-70-3
11/157
ND
2.3
0.052 - 13
0.062
Ytģ
niliaaifum (C12HW)
132-64-9
mn
ND
0.61
0.0J1 - 1J
290
No (less than KBC)
DMdria
<0-57-1
24/39
ND
0.039
0 0012 - 0,01
0.030
Ya
DMafaMģUģ
14-66-2
1/157
ND
1.3
0.025 - 13
49000
No (less than RBl")
Pimrtij4 phflnhli
131-11-3
(VI57
ND
ND
0.02 - 13
100000
No (not detected)
Di-a-batsfeMudato
84-74-2
mn
ND
ND
0.024 - 13
6100
No (not detected)
Di-a-oc
-------
Table A-l. Chemical Data aad COI Selection Criteria for Aaalytes la Sedimeat, Lower Ottawa River Humaa Health Risk Assessment
Rreqasacy
Range o(
Risk-Based
et
Mlalaaam
Maximum
Detectloa Limits
Conceatratloa
Sdect
Cbeaakal
CAS No.
Detection
(Bg/fcg)
ng/kg)
(mg/kg)
(mg/kg) (Ģ,b)
as COI?
Vfeicwy
7439-97-6
110/153
ND
2.4
0.017-0.15
23
No (less than RHC)
Metboxychlor
72-43-5
1/36
ND
0.035
0.021 -0.37
310
No (less than RHC)
Napttfhalow
91-20-3
(VI57
ND
ND
0.017 - 13
56
No (not detected)
Nickel
7440-02-0
32/32
2.1
62.3
NA
1600
No (less than RHC)
Nitrotwan*
98-95-3
0/157
ND
ND
0.05 - 13
20
No (not detected)
4165-60-0
120/121
ND
3.9
NA
NA
No (no tux criteria)
N-Nitro*o-cb-n-propylamine
621-64-7
4/157
ND
3.0
0.036- 13
0.069
Yes
N-NitroaodiphenyUnune
86-30-6
0/157
ND
ND
0.035 - 13
99
No (nol delected)
PCB Andot 1016
12674-11-2
12/157
ND
120
0.007 - 0.23
3.9
Yis
PCB Aroclor 1221
11104-28-2
0/157
ND
ND
0.014 - 28
3.9
No (nut detected)
PCB Aroclor 12)2
11141-16-5
0/157
ND
ND
0.01 - 7.7
3.9
No (not detected)
PCB Aroclor 1242
53469-21-9
118/157
ND
10
0.022 - 17
0.22
Yes
PCB Aroclor 124S
12672-29-6
4/157
ND
0.95
0 0049 - 3.8
0.22
Yes
PCB Aroclor 1254
11097-69-1
11/157
ND
1.4
0.01 - 7.8
0.22
YĢ
PCB Aroclor 1260
11096-82-5
14/157
ND
0.19
0.0091 - 7
0.22
No (Jess than RlH'i
P*ntģrMn.ĢTh*nol
87-86-5
2/155
ND
0.54
Ģ*
*r
CI
O
Š
3.0
No (less than R1U')
Fheninthieae
85-01-8
31/157
ND
12
0.024 - 13
230(1
No (less than KlU'i
Phenol
108-95-2
4/157
ND
4.6
0.031 - 13
370(H)
No (less than KIU )
Phenol-dS
4165-62-2
120/121
ND
6.3
NA
NA
No (no tox cntenj)
Pyiena
129-00-0
61/157
ND
14
0.037 - 13
2300
No (less than RH(')
Pyridine
110-86-1
-------
Tabic A-2. ģ Data ud COI Sckcttoa Criteria for Aaalyte* la Svrface Water, Lower Ottawa River Hainan Health Risk Atsecsmcnt
Frtqwcy
ot
Mtalau
Mulaia
Rai|* of
DcUcttoa Umlu
RJflt-Bawd
CoaccatraUoa
SĢlĢct
- Ļ
CAS No.
Ditģiiii
(HĢt)
(H/L)
(nt/t-f**-*
ģ*COI?
l.l'-Biphnyl
92-52-4
in\
WD
10
10-20
104
No (leu than RBC)
2,2*-Oxyfci<( 1 -CUonprafmac)
540-54-5
0121
ND
ND
10-20
NA
No (not detected)
2,4^-TOcUoMphiool
0/21
ND
ND
25-50
3600
No (not detected)
2,4,0-lticilotaiilNool
88-06-2
0/21
ND
ND
10-20
6.1
No (not detected)
2.4-OiehlofOptwnnl
120-83-2
0/21
ND
ND
10-20
110
No (not detected)
2,4-Dimtliylphraol
105-67-9
0/21
ND
ND
10-20
710
No (not detected)
2,4-DiaitnplmoI
51-21-5
0/21
ND
ND
25-50
73
No (not detected)
2,4-DinitrotaJuĢnĢ
121-14-2
2/21
ND
43
10
73
No (less than RBC)
2>Diaiktitohira*
606-20-2
0/21
ND
ND
10-20
36
No (not detected)
2-Chlocoiii)Mhil>niiatro-2-inMiiy1pheno{ (DNOC)
5J4-52-1
0/21
ND
ND
25-50
NA
No (not detected)
4-Bromoftanyl pbaoorl cthw
101-55-3
0/21
ND
ND
10-20
NA
No (not delected)
4-CfclofĢ-3-fZWthylpiMnoJ
59-50-7
2/21 ()
ND
65
10
1800
No (less than RBC)
4-CbkNMdiM
106-47-*
0/21
ND
ND
10-20
150
No (not delected)
4-CMonchaqrl^kHgMMr
7005-72-J
oni
ND
ND
10-20
NA
No (not detected)
I \ ... l
106-44-5
0/21
ND
ND
10-20
180
No (not detected)
1 MitiiMMlin*
100-01-6
0/21
ND
ND
25-50
2.1
No (not detected)
4-NitiofiiMaol
100-02-7
2/21
ND
67
25
290
No (leas than RBC)
,-111,
85-32-9
2/21
ND
41
10
370
No (less than KHO
a - - 1 jfc. J,. Ļ -
20S-96-S
0/21
ND
ND
10-20
180
No (not dctcLicd)
AeikfhiMtt
98-86-2
0/21
ND
ND
10-20
0042
No (not detected)
Aldria
309-00-2
2/21 M
ND
0.22
0.05
0.0040
Ya
VpfafrBum huadOomk (ģ-BHC)
319-84-6
0/21
ND
ND
0.05
0.011
No (not detected)
1 of 5
-------
Table A-2. Chemical Data aad COI Selection Criteria for Analyte* in Surface Water, Lower Ottawa River Human Health Risk Assessment
Cl Ģalcal
CAS No.
Fraqaeacy
of
Datactfan
MIiIbib
(WL)
Mailman
(H8/L)
Rģ|e of
Detectioa LlmlU
(>ģ/Ģ-)
Risk-Based
Coacealratiim
(Mg/L)1*-'"'
Select
u COI?
itpfca-CMonhn*
Aluminum
5103-71-9
7*29-90-5
Ammonia
Arthraoenr
Anenic
AUaana
Barium
BcnzaMehyde
Boao(a]aithncae
Bamo[i)pyTen>
Bcna>{b]ihionaidiene
BgnaofoJufreryiene
Berao{i]ftuofmĢhene
Beryllium
lute nwii.w hexachlorid* (b-BHC)
btĢ(2-Chk>roethoxy) methane
bu(2-CUoroethjd) ether
bia(2-Ethylha)r|)phthĢlite
Butylbcnzylphdialat*
Cadmium
Calcium
Captobctam ____
7664-41-7
120-12-7
7440-38-2
1912-24-9
7440-39-3
100-52-7
56-55-3
50-32-8
205-99-2
191-24-2
207-08-9
7440-41-7
319-85-7
111-91-1
111-44-4
117-81-7
85-^8-7
7440-43-9
7440-70-2
105-60-2
0/21
19/19
18/18
0/21
3/19
1/21 (e)
19/19
0/20
0/19
0/19
0/19
0/19
0/19
0/19
0/21
0/21
0/21
3/20
0/20
3/19
38/38
0/21
ND
889
ND
ND
ND
ND
54.2
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
62000
ND
ND
1.5
ND
ND
7.2
ND
ND
ND
ND
ND
ND
2790
3700
ND
3.8
1
90.6
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
3
ND
0.3
12300(1
ND
ND
5.4
ND
1.7
13.2
ND
ND
ND
048
ND
0.05
NA
NA
10-20
2.3
10-20
NA
10 - 20
10-20
10 -20
10-20
10-20
10-20
0.2
0.05
10-20
10-20
10 - 20
10 - 20
0.2
NA
_ ljO -20
10 - 20
NA
10-20
0.5
NA
0.05
10-20
10-20
0.1
10-20
0.1900
36000
210
1800
0.045
0.30
2600
3600
0.092
0.0092
0.092
180
0.92
73
0037
0.0098
0 0098
4.8
7300
18
500000
18000
3.4
55000
9.2
2200
1400
0.0U
0.0092
24
0.0042
29000
No (not detected)
No (less than RBC)
YĢ
No (not detected)
Yes
Yes
No (less than RBC)
No (not detected)
No (not detected)
No (nol detected)
No (nol detected)
No (not detected)
No (not detected)
No (nut detected)
No (not detected)
No (nol detected)
No (nol detected)
No (less than KMC I
No (nol detected)
No (less than RHO
No (less than KMC)
No (not detected)
No (nol detected)
No (less than RBC)
No (nol delected)
No (less lhan RliC)
No (less than RH("I
No (not detected)
No (not delected)
No (nol detected)
YĢ
No (nol detected)
Caitmole
Chromium
Qsyma
Cobalt
..Qshkl
(Wlta Dinrrno hnacMorid* (d-BHQ
Kbag(aJi)anAaeaģ
Dibauafuna (CI2HI0)
DiekWin
DiUbybhthiUU
86-74-8
7440-47-3
218-01-9
7440-48-4
7440;50;8
319-86-8
53-70-3
132-64-9
60-37-1
1446-2
0/21
19/19
0/20
17/19
19/19
0/21
0/19
0/21
2/21 (t)
0/21
lafS
-------
Table A-2. Cktmltil Data ui COI Selection Criteria for Aaalytti Im Surface Water, Lower Ottawa River H>mai Health Risk Aiicitunl
FNqwaty
Raat*al
Risk-Baud
of
MlalMM
Mulna
Dctccttoa Ualu
Cokc cut ratios
Select
Clilnl
CASNb.
Madtoa
fcĢ/L)
(W/L)
(Hg/L)
0>ft
at COI?
Dima&ji phthkUtc
131-11-3
0/20
ND
ND
10-20
360000
No (not delected)
Di-ģbai)4|tthalalt
4-74-2
1/21 (e)
ND
4
10-20
3600
No (less than RBI")
Di-o-octylphihaiat*
117-84-0
0/19
ND
ND
10-20
730
No (not delected)
EuMtel
115-29-7
0/21
ND
ND
0.05
220
No (not detected)
BadoHlfaa D
33213-65-9
0/21
ND
ND
0.1
220
No (not delected)
Endowlftn mUM§
1031-07-1
0/21
ND
ND
0.1
220
No (not detected)
Bndrin
72-20-1
2/2!
ND
0.5
0.1
11
No (less than KBC)
Eadrin tiddiydt
7421-93-4
0/21
ND
ND
0
11
No (not detected)
Badmbkw
53494-70-5
0/21
ND
ND
0.1
11
No (not detected)
Puonollicni
206-44-0
0/21
ND
ND
10-20
1500
No (not detected)
Fluonoa
86-73-7
0/21
ND
ND
10-20
240
No (not detected)
pnaton bnachlondt (g-BHC; Lfodane)
58-89-9
2/21 (Ģ)
ND
0.21
0.05
0.052
YĢ
gunaa-CttovdM*
12789-03-4
0/21
ND
ND
0.0)
0.19
No (not detected)
Hapochkr
76-44-8
2/21 (e)
ND
0.2
0.05
0.015
Vis
IhtHlto coomb
1024-57-3
0/21
ND
ND
0.05
0.0074
No (not detected)
HnucUonbMMM (HCS)
118-74-1
(V21
ND
ND
10-20
0.042
No (Hot detected)
ItettdiwAutodieBS
87-68-3
0/21
ND
ND
10-20
0.86
No (not dc-lccledl
HemUuw-jn Iqwiariicm
77-47-4
0/21
ND
ND
10-20
260
No (not detected)
HnKibmtai
67-72-1
0/21
ND
ND
10-20
4.8
No (not detected)
tadno(l,2J-aiJpymģ
193-39-5
0/19
ND
ND
10-20
0.092
No (not delected)
baa
7439-89-6
19/19
1470
4640
0
11000
No (less than K1JC)
TgVnM
78-59-1
0/21
ND
ND
10-20
71
No (not detected)
Lnd
7439-92-1
19/19
1.3
7.8
NA
15
No (less than Kill")
Mģgliiim
7439-95-4
38/31
13000
37000
NA
200000
No (less than KBC)
Mmbmm
7439-96-5
19/19
41.8
415
NA
880
No (less than KBC)
Many
7439-97-6
19/19
0.12
0.18
NA
11
No (less than KHC)
MetbatycUor
72-43-5
0/21
ND
ND
0.5
180
No (not detected)
%Ģl itlilllMI
NpBBIMi
91-20-3
0/21
ND
ND
10-20
6 2
No (not delected)
NkW
7440-02-0
19/19
4.1
9 2
NA
730
No (less than Klk')
TITu 1 Ļmm
98-95-3
0/21
ND
ND
10-20
3.4
No (not deWUcil)
Nitmt plut NiJrite
19/19
4580
10700
10 - 20
10000
Yes
N-Nilroģt>-di-tģ-procyUmioe
621-64-7
2/21 (e)
ND
37
II)
0.0096
YĢ
J of 5
-------
Table A-2. Chemical Data and COI Selection Criteria for Analytes in Surface Water, Lower Ottawa River Human Health Risk Assessment
Fnqaeacy
Range of
Risk-Based
at
Ml a Ik am
MmIoiiid
Detectloa Limits
Coaceatralloa
Sckvt
CAS No.
Detcctioa
(W/L)
0ģg/L)
(tģf/L)
MS C OI ?
N-NitroaodiphenyUmine
86-30-6
0/21
ND
ND
10-20
14
No (not delected)
PCB Aroclor 1016
12674-U-2
0/21
ND
ND
1
0.96
No (not detected)
PCB Aroclor 1221
11104-28-2
0/21
ND
ND
2
0.034
No (not detected)
PCB Aroclor 1232
11141-16-5
0/21
ND
ND
1
0.034
No (not detected)
PCB Aroclor 1242
53469-21-9
0/21
ND
ND
1
0.034
No (not detected)
PCS Aroclor 1248
12672-29-6
0/21
ND
ND
1
0.034
No (not detected)
PCB Aroclor 1254
11097-69-1
0/21
ND
ND
1
0.034
No (not detected)
ND
ND
1
0.034
No (not detected)
Pentachlorophenol
87-86-5
2/21 (e)
ND
79
25
Yes
Pfaenanthiene
85-01-8
0/21
ND
ND
10 - 20
180
No (not detected)
Phenol
108-95-2
2/21
ND
57
10
220(H)
No (less than RlU ')
Phosphorus
7723-14-0
19/19
80
180
NA
500000
No (less than RBO
7440-09-7
19/19
4000
9950
NA
100000
No (less than RBC)
Pynae
129-00-0
2/20
ND
41
10
180
No (less than RBC)
180
Selenium
7782-49-2
16/19
ND
8
2.2
No (less than RBC )
Silver
7440-22-4
0/19
ND
ND
0.6
180
No (not detected)
Sodium
7440-23-5
19/19
17000
73300
NA
100000
No (less than RBO
7440-28-0
1/19
ND
4.5
3.2
2.4
Vis
Toxaphene
8001-35-2
0/21
ND
ND
5
0.061
No (not detected>
Vanadium
7440-62-2
19/19
2.7
7.4
NA
260
No (less than RBI )
7440-66-6
19/19
6.7
30.5
NA
1 1000
No (less than RBC)
(a) Ammonia value from Region III RBC Table# (U.S. EPA Region III, 2000). All other values are from U.S. EPA Region IX (2000) except as indicated.
(b) Calcium, Magnesium, and Potassium values calculated baaed on U.S. FDA Recommended Duly Intakes and Sodium value calculated based on U.S. FDA Daily Value, using U S II'A Region 9 l'k( i
aquation
(c) Nltlite value equivalent to U.S. EPA Ambient Water Quality Cnleria for human health consumption of water * organism (U S. EPA, 1999)
(d) Lead value equivalent to U.S. EPA lead actioo level (U.S. EPA, 2001c).
(e) All detected concentrations are estimated (T qualified) values
4 of}
-------
Table A-3. Chemical Data and COI Selection Criteria for Analytes la Fish, Lower Ottawa River Human Health Risk Assessment
Freqaeicy
Raage af
Backgreuad
RiĢk-Baied
f
MlatMM
Miilma
Detection Lfmiti
Maxlama
Ceaceatratioa
Select
Chemical
CAS NĢ.
Detect!**
(tfkf)
(ģ'-)
50-29-J
27/84
ND
0.242
0.00935-0.0104
0.2965
0.093
Yes
Aldria
309-00-2
1/42
ND
0.033
0.00935-0.0987
0.0261
0.00019
Yes
alpha-Be azene bwwcklonde (*-BHC)
319-84-6
0/42
ND
ND
0.00935-0.0104
ND
0.00050
No (nol detected)
alpha-CUordaae
5103-71-9
6/42
ND
0.0307
0.00935-0.0104
ND
0.0090
Yes
Artenic
7440-38-2
2/41
ND
0.255
0.159-0.196
ND
0.0021
Yes
beta-Benzene bex*ckk>ridc (b-BHC)
319-85-7
0/42
ND
ND
0.00935-0.0104
ND
0.0018
No (not detected)
Cadmium
7440-43-9
0/41
ND
ND
0.0159-0.0196
0.0193
104
No (not detected)
Chlofdaae
12789-03-6
24/42
ND
0.455
NA
0.0759
0.0090
Yes
Chromium
7440-47-3
0/41
ND
ND
2.38-2.94
ND
2000
No (not detected)
cit-Nontclilor
5103-73-1
0/42
ND
ND
0.00935-0.0104
0.00888
0.009
No (not detected)
delta-Benzene hexachlorkie (d-BHC)
319-86-8
0/42
ND
ND
0.0093S-0.0104
ND
0.0005
No (nol delected)
Dicldrin
60-57-1
6/42
ND
0.0335
0.00935-0.0104
0.067
0.0002
Yes
Eixtoģulfģn 1
115-29-7
0/42
ND
ND
0.00935-0.0104
ND
8.1
No (not detected)
Eadotulfaa II
33213-65-9
0/42
ND
ND
0.00935-0.0104
ND
8.1
No (nol detected)
Eadoful&n fulftte
1031-07-8
0/42
ND
ND
0.00935-0.0104
ND
8.1
No (not delected)
Eadria
72-20-8
0/42
ND
ND
0.00935-0.0104
ND
0.41
No (nol detected)
|imaģBĢaHM haxachlorida (j-BHC; liidit
t) 58-89-9
0/42
ND
ND
0.00935-0.0104
ND
0.0024
No (not delected)
gamma-CWordaa*
5103-74-2
24/42
ND
0.455
0.00935-0.0104
0.037
0.0090
HeptacUor
76-44-8
0/42
ND
ND
0.00935-0.0987
ND
0.00070
No (not detected)
HcpUchlor epoxide
1024-57-3
0/42
ND
ND
0.00935-0.0104
0.00567
0.00035
No (nol detected)
HsxachlorobĢaģM (HCB)
118-74-1
0/42
ND
ND
0.00935-0.0104
ND
0.002
No (not detected)
Lead
7439-92-1
0/41
ND
ND
0.159-0.196
ND
NA
No (not detected)
Mercury
7439-97-6
37/42
ND
0.123
0.0194-0.0239
0.112
0.14
No (less than KB*')
No (not detected)
Methoxycblor
72-43-5
0/42
ND
ND
0.00935-0.0104
ND
6.8
Mi rex
2385-85-5
0/42
ND
ND
0.00935-0.0104
ND
0.27
No (not detected)
Oxychlordaoe
27304-13-8
0/42
ND
ND
0.00935-0.0104
0.00805
0.0090
No (not delected;
PCB Aroclor 1016
12674-11-2
0/42
ND
ND
0.0468-0.0518
ND
0.045
No (nol deleUet!)
PCB Aroclor 1221
11104-28-2
0/42
ND
ND
0.0468-0.051 i
ND
0.0016
PCB Aroclor 1232
11141-16-5
0/42
ND
ND
0.0468-0.OS IS
ND
0.0016
No (nut dclecicii)
1 of 2
-------
Tabic A-3. Chemical Data and COI Selection Criteria for Analytes in Fish, Lower Ottawa River Human Health Risk Assessment
Frequeacy
Raagt of
Backgrouad
Risk-Based
r
Mlaimnm
Maximum
Detectioa Limits
Maximum
Concentration
Select
Chemical
CAS N*.
Detection
(mg/kg)
(mg/kf)
(mg'kg)
(mg/kg)
(mg/kg)Ģ"
as COI?
PCB Aroclor 1242
53469-21-9
42/42
0.0649
22.5
NA
ND
0.0016
Yes
PCB Aroclor 124S
12672-29-6
0/42
ND
ND
0.0468-0.0518
ND
0.0016
No (not dctCLlL-d)
PCB Aroclor 1254
11097-69-1
0/42
ND
ND
0.0468-0.0518
1.85
0.0016
No (nol detected)
PCB Aroclor 1260
11096-82-5
20/42
ND
0.666
0.0468-0.0518
2.34
0.0016
Yes
Selenium
7782-49-2
41/42
ND
0.688
NA
0.684
6.8
No (loss than KUC)
Toxapheae
8001-35-2
0/42
ND
ND
0.0187-0.0207
ND
0.0029
No (llol delctlcd)
tranģ-Noaachlor
39765-80-5
2/42
ND
0.0134
0.00935-0.0104
0.0225
0.0090
Yes
(a) U.S. EPA Region ill (2000)
NA Not available
ND Not detected
-------
APPENDIX B
Exposure Point Concentration Calculations for the
Lower Ottawa River Human Health Risk Assessment
Printed on recycled paper
-------
Table B-l. kxpnsure I'oint Cunccntrutjuns fur Che mica Is in Sediment
Lower Ottawa River Human Health Risk Assessment
Chemical
CAS No.
Frequency
of
Detection
Maximum
Detect
(mg/kg)
Maximum
including
Nondetects
(mg/kg)
Arilh
Mean
(mg'fcg)
95%
ICL
(mg/kg)
RME/CT
EPC
(mg/kg)
Segment 1 (RM 0 to <3.2)
Aldrtn
309-00-2
14>JS
0.020
0.0:0
0 oil
0.037
oo;o
Arsenic
7440-38-2
S3/83
17
17
8.5
9.4
9.4
Ben20(a)anthracene
56-55-3
17/87
9.0
9.0
0.3S
0 31
0 .11
Benz6(a)pyrefl6
50-32-8
14-87
8.1
8.1
0.42
037
0.37
Benzo(b)Auorantheoe
205-99-2
18/87
6.6
6.6
0.42
042
042
Beozo(k)nuoranthĢne
207-08-9
22/87
7.2
7.2
0.63
0.72
0.72
bi*(2-Ethy Ihexy l)phthalate
117-81-7
40/87
4.7
6.5
0.85
2.1
2.1
DibĢoz(a^i)anlhntcne
53-70-3
3/S7
2.3
6.5
0.42
0.40
0.40
Dteldna
60-57-1
1 1/18
0.039
0.039
0.014
0.046
0.039
Heptachlor epoxide
1024-57-i
12/16
0.025
0.025
0.012
0.040
0.025
Indeno(l,2,3-cd)pyrene
193-39-5
1 1/87
6.2
6.5
0 35
0.29
0.29
Lead
7439-92-1
83/83
189
189
91
\ \ 3
113
N-Nitro#o-di-ii-propylammĢ
621-64-7
4>X7
3.0
6.5
0.49
0.54
0.54
PCB Aroclor 1016
12674-11-2
0/87
ND
0.12
0.015
0.017
0.017
PCB Aroclor 1242
PCB Aroclor 1248
33469-21-9
12672-29-6
78/87
2/87
0.24
4.1 _
0.24
0 87
0.021
1.8
0.024
1.8
0.024
PCB Aroclor 1254
11097-69-J
0/87
ND
0.080
0.018
0.019
0.019
Total PCB*
80/87
4.5
4.5
0.99
U
13
Thallium
7440-28-0
12/12
9.6
9.6
4.5
62
62
Segmeat 2 (RM 3.2 to <4.9)
Aldrin
309-00-2
6/9
0.045
0.045
0.016
0.28
0.045
Arswic
7440-38-2
33/35
14
14
7.7
11
U
Beozo(a)aathracene
56-55-3
5/36
2.9
3.2
0.49
0.89
0.89
BĢi2o(Ģ)pyr6M
50-32-8
6/36
2.7
3.2
0.44
0.75
0.75
Boozo(b)ftuoriathmo
205-99-2
12/36
2.9
2.9
0.54
U
1J
BoazoOOfluonmthoio
207-08-9
5/36
3.6
3.6
0.45
0.71
0.71
bis(2-Ethylhexyl)phthalate
117-81-7
26/36
11
11
2.5
20
11
DibĢDz(a^)ĢUuģcĢie
53-70-3
3/36
0.75
3.15
0.43
0.60
0.60
Dieldrio
60-57-1
5/9
0.030
0.030
0.013
0.064
0.030
Htptachlor Ģpoxidģ
1024-57-3
6/9
0.081
0.081
0.023
0.65
0.081
Ind#DO
PCB Aroclor 1016
12674-11-2
3/36
6.0
6.0
0.42
0.34
0.34
PCB Aroclor 1242
53469-21-9
25/36
3.4
3.4
0.81
4.4
3.4
PCB Aroclor 1241
12672-29.6
1/36
0.95
0.95
0.044
0.044
0.046
PCB Aroclor 1254
11097-69-1
1/36
0.23
0.23
0.035
0.048
0.048
Total PCB*
29/36
6.7
6.7
\S
37
1.7
Thallium
7440-28-0
6/8
51
5.8
3.4
13
58
1 of 2
-------
Table B-l. Kxposure Point Concentrations for Chemicals in Sediment
Lower Ottawa River Human Health Risk Assessment
Maximum
Frequency
Maximum
lacludiag
Arlth
95%
RMEVCT
of
Detect
Noadetects
Meaa
UCL
EPC
Chemical
CAS No.
Detection
(mg/kg)
(mg/kg)
(mg/kg)
(mg/kg)
(mg/kg)
Segmeat 3 (RM 4.9 to <6.5)
Aldrin
309-00-2
4/7
0.054
0.054
0,017
0.89
0.054
Arwnic
7440-31-2
18/18
30
30
7.1
9.1
9.1
Be&2o(a)ai)thr*c*no
56-55-3
7/17
2.5
2 5
0.82
12
2.5
BnzoģiitlmcĢa
56-55-3
8/17
23
2J
0.66
5.9
2J
BĢaao(*)|>ynM
50*32-8
8/17
14
1A
0.74
6.1
14
20MM
8/17
3.0
3.0
J>.9ģ
14
i.o_
BĢiaģ(k)flitanaClwaĢ
207-08-9
4/17
3.0
J.0
0.55
3.1
3.0
bi<(2-BtbyflimyDpka
-------
Table B-2. Kxposure Point Concentrations for Chemicals in Surface \\ ater
Lower Ottawa River Human Health Risk Assessment
Maximum
Frequency
Maximum
including
Arith
95%
RMK/CT
of
Detect
Nondete cts
Mean
LCL
EPC
Chemical
CAS No
Detecting)
(mg/K)
(mg/L)
(mg/L)
(mg/kg)
(mg/L)
Segment 1 (RM 0 to <3.2)
95-57.8
0.0^6
0.0^6
0.014
0.029
0.029
2-Chlorophenol
2/11
4,4-DDT (p.p'->
50-29-3
2'1 1
0.00039
0 00039
0.00011
0.00021
0.00021
Aldrin
309-00-2
2/M
0.00022
0.00022
0.000060
0.00012
0.00012
9/9
0.30
0.30
0.21
0 24
0.24
Arsenic
7440-38-2
2/9
0.0033
0.0033
0.0015
0.0021
0.0021
Atrazme
1912-24-9
1/11
0.001
0.010
00055
0.0090
0.0090
Dieldrin
60-57-1
2/11
0.00048
0.00048
0.00013
0.00026
0.00026
Di-o-butylpbthaUte
84-74-2
1/11
0.0040
0 010
0.0054
0.0061
0.0061
0.00021
0.00021
0.000059
0.00011
0.00011
Hepucblor
76-44-8
2/11
0.00020
0.00020
0.0000S6
0.00010
0.000 to
Lead
7439-92-1
9/9
0.0078
0.0078
0.0044
0.0092
0.0078
N-N itros CM& - n propyl amin
621-64-7
2/11
0.017
0.037
0.010
0.018
0.018
Pentachlorophenol
87-86-5
2/11
0.079
0.079
0.023
0038
0038
Trillium
7440-28-0
V/9
0.004)
0.0045
0.0019
0.0025
0.0025
Segment 2 (RM 3.2 to <4.9)
95-57-1
A 1*
ND
0.0050
0.0050
NA
0.0050
2-Chlofophenol
0/4
4,4*-DDT (fr,p'-)
50-29-3
0/4
ND
0.000050
0.000050
NA
0.000050
Aldrit
309-00-2
0/4
ND
0.000075
0.000025
NA
0.000025
Ammonia
7664-41-7
4/4
0J0
0.30
0.21
0.35
0.30
Atmoic
7440-38-2
1/4
0.0038
0.0031
0.0011
0.012
0.0031
Atrtzine
1912-24-9
0/4
ND
0.0050
0.0050
NA
0.0050
Diddrin
60-57-1
0/4
ND
0.000050
0.000050
NA
0.000050
Di-a-btttylphtbaUte
84-74-2
0/4
ND
0.0050
0.0050
NA
0.0050
58-89-9
ft/A
ND
0.000025
0.000025
NA
0.000025
gamma-BĢo2ģdģ hexAchlarid*
ND
0.000025
0.000025
NA
0.000025
Laid
7439-92-1
4/4
0.0073
0.0073
N-Nitroģo-di-ii-propyhuniiiĢ
621-64-7
0/4
ND
0.0050
0.0050
NA
0.0050
rĢnt*cklofcpbĢiol
87-86-5
0/4
ND
0.013
0.013
NA
O.OD
ThiUium
7440-28-0
0/4
ND
o.oot*
0.0016
NA
0.0016
lof2
-------
Table B-2. Exposure Point Concentrations for Chemicals in Surface Water
Lower Ottawa River Human Health Risk Assessment
Maximum
Frequency
Maximum
including
Arith
95%
R.ME/ CT
of
Detect
Noadetects
Mean
UCL
EPC
Cbcntcal
CAS No,
Detectlom
(mg/L)
(mg/L)
(mg/kg)
(mg ft)
Seg meat 3 (RM 4.9 to <6.5)
2-ChIoropheno|
95-57-S
0/4
ND
0.0050
0 0050
NA
0.0050
4,4 -DDT (p,p-}
50-29-3
0/4
ND
0.000050
0.000050
NA
0.000050
Aldrio
309-00-2
0/4
ND
0.000025
0.000025
NA
0.000025
Ammonia
7664-41-7
4/4
37
3.7
1.0
NA
3.7
Atmsic
7440-38-2
0/4
ND
0.0012
0.0012
NA
0.0012
Atnzia*
1912-24-9
0/4
ND
0.0050
0.0050
NA
0.0050
Duidria
<0-57-1
0/4
ND
0.000050
0.000050
NA
0.000050
Di-a-butylphthaUta
B4-74-2
0/4
ND
0.0050
0.0050
NA
0.0050
gamma-Bcazani ttfxacfetorkie
5S-89-9
0/4
ND
0.000025
0.000025
NA
0.000025
Heptkchlor
76-44-8
0/4
ND
0.000025
0.000025
NA
0.000025
Lcttf
7439-92-1
4/4
O.OOS9
0.0059
0.0039
0.034
0.0059
N-NitroĢo-ropylBau&*
<21*44-7
0/2
ND
0.0050
0.0050
0.0050
0.0050
N&lacklorophcool
I7-M-5
0/2
ND
0.013
0.013
0.013
0.0U
niBta
7440-21-0
0/2
NO
0.0014
0.001*
0.0016
0.0016
2of 2
-------
Table B-3. Exposure Point Concentrations for Chemicals in Fish
Lower Ottawa River Human Health Risk Assessment
Maximum
Frequency
Maximum
including
Arith
RVIE/CT
of
Detect
.Nondetects
Mean
EPC
Chemical
CAS .No.
Detection
(mg/kg)
(mg/kg)
(mg/kg)
("K'kg)
Segment 1 (RM 0 to <3.2)
4,4'-DDD (p,p'-)
72-54-S
3/7
0.092
0.092
0.029
0.092
4,4'-DDE (p.p'->
72-55-9
4/7
0.16
0.16
0.061
0.16
4,4*-DDT (p,p'-)
50-29-3
4/14
0.24
0.24
0.046
0.19
Aldrta
309-00-2
0/7
ND
0.0050
0 0048
0 0049
alpha-Chlordane
5103-71-9
1/7
0.030
0.030
0.0085
0.013
Arsenic
7440-33-2
1/7
0.26
0.26
0.12
0.049
ChJordaoe
12789-03-6
4/7
0.16
0.16
0.077
0.16
Dieldno
60-57-1
1/7
0.033
0.033
0.0089
0.020
gamma-Chlordane
5103-74-2
4/7
0.13
0.13
0.042
0.13
PCB Aroclor 1242
53469-21-9
7/7
5.4
5.4
1.6
5.4
PCB Aroclor 1260
11096-82-5
J/7
0.40
0.40
0.17
0.40
Total PCB*
7/7
5.9
5.9
1.9
5.9
trans-Nonachlor
39765-80-5
0/7
ND
0.0050
0.0048
0.0049
Atrazine*
1912-24-9
NA
NA
NA
NA
0.60
Di-n-butylphthaUte*
84-74-2
NA
NA
NA
NA
19
Thallium*
7440*28-0
NA
NA
NA
NA
0.25
2-Chlorophenol*
95-57-8
NA
NA
NA
NA
0.81
N-NitroĢo-di-n-propylamiDĢ*
621-64-7
NA
NA
NA
NA
0.12
Pff&tachloropfaraol*
87-16-5
NA
NA
NA
NA
183
Se|neit 2 (RM 3.2 to <4.9)
4,4'-DDD(pj>'-)
72-54*8
3/7
0.046
0.046
0.016
0.046
4,4'*DDB (p,p-)
72-55-9
5/7
o.u
0.11
0.035
o.u
4,4,-DDT(p^'->
50-29-3
4/14
0.15
0.15
0.026
0.070
Aldrm
309-00-2
0/7
ND
0.0050
0.0049
0.0049
alpha-Cblorda&e
5103-71-9
0/7
ND
0.0050
0.0049
0.0049
Am&ic
7440-38-2
1/7
0.22
0.22
O.U
0.045
Chlordaae
12789-03-6
4/7
0.065
0.06S
0.030
0.065
Dieldria
60-57-1
0/14
0.0052
0.0052
0.0050
0.0051
gaouM-Chlordno
5103-74-2
4/7
0.065
0.065
0.019
0.065
PCB Aroclor 1242
53469-21-9
7/7
2.6
2.6
1.0
2.6
PCB Aroclor 1260
11096-82-5
3/7
0.32
0.32
0.091
0.32
ToUlPCBa
7/7
2.8
2.8
\2
2.8
trani-Noaachlor
39765-80-5
0/7
0.0050
0.0050
0.0049
0.0049
Atrmzm**
1912-24-9
NA
NA
NA
NA
0.33
Di-a-bvtyljphthalstt*
84-74-2
NA
NA
NA
NA
16
*n>t nģ
7440-28-0
NA
NA
NA
NA
0.16
2-Chloropbttol*
95-57-8
NA
NA
NA
NA
16
N-Nitroto-di-B-propyUttinĢ#
621-64-7
NA
NA
NA
NA
0.034
Pntachlorophnol*
87-86-5
NA
NA
NA
NA
60
1 of 2
-------
Table B-3. Exposure Point Concentrations fur Chemicals in Fish
Lower Ottawa River Human Health Risk Assessment
MAiimum
FrequeKcy
Maximum
including
Arith
RME/CT
of
Detect
Noftdelett)
Me*n
EPC
Chemical
CAS No.
Detection
hĢ-Cb Ionian*
5103-71-9
U21
0.012
0.012
0.0052
0.0056
Amebic
744031-2
0/20
ND
0.096
o.oti
0.027
ChlordaeĢ
12719-03-6
11/21
0.46
0.46
0.10
0.21
Dieidrin
60-57-1
0/21
ND
0.0052
0,0049
0.0049
gwaau-Chlardia*
5I0J-74-2
J J/21
0.46
0.46
0.056
0.16
PCB Aroclor 1242
53469-21-9
21/21
23
23
2.6
6.7
PCB Arocloc 1260
U096-S2-5
9/21
0.67
0.67
0.16
0.39
ToUlFCBt
21/21
23
23
2.9
5.8
trutf*NonģchIor
39765-10-5
0/21
ND
0.0052
0.0049
0.0049
AtnziiM*
1912-24-9
NA
NA
NA
NA
0.33
Di-obutyl^hthiUu*
4-74-2
NA
NA
NA
NA
16
TheBiua*
7440-21-0
NA
NA
NA
NA
0.16
2-CUoroptuaot*
93-37*8
NA
NA
VA
NA
0.14
N-Nifroģo-
-------
APPENDIX C
Exposure Parameters Used ln the
Lower Ottawa River Hu.man Health Rlsk Assessment
Printed on recycled paper
-------
TaMa C-l. Eipftnrt ruuHtcn VimI 1b the Lower Ottawa River HHRA
cvcba*aM
25550
A
Bqaal to 70 years (lifetime) for carciaogaaa
U.S. EPA, 19S9
BW
Bady wai(ģl.a4ettrocroĢ
-------
Table C-2. Exposure Parameter! Uied ia the Lower Ottawa River HHRA
Scenario: RMB
Bxpocur* Population: Adult reemtor
BxpoĢurģ Medium: Surface Witer
Parameter Cģ4Ģ
Parameter Definition
V4ae
Unit*
Rationale
Reference
Surface water ingestion rate, adult recreator
o.os
L/hr
Default incidental water ingestion rate
U.S. EPA, 1989
PI
Fraction of aurface water ingested from a
contaminated source
1
unitleas
Aecume 100%
Professional judgment
SAwmw
Skin surface area available for surface water contact
during swimming or wading, adult recreate*
12700
an/event
Annual average: assume total body surface area for 50% of the events
(swimming/ wading) and hands and forearms only for 50 % of the
events; baaed on upperbound adult body surface area
U.S. EPA. 1997a (Tables (-4 and
6-14)
K,
Percutaneous abeorption rate for skin surface
contact with water
chemical-
specific
cm/hour
Chemical-specific
Chemical-specific
BT
Exposure time to surface water during swimming or
wading, adult reoeator
3
hr/event
Based on mean 24-hour cumulative time spent outdoors at pool, river,
lake by 1 8-64 yr olds and 95VĢile time per swimming event
U.S. EPA, 1997* (Table 15-110
and p. 15-17)
BP
Exposure frequency, adult Tecreator
24
events/yr
4 d/month for 4 months and 1 d/month for 8 months
Professional judgment
ED
Exposure duration, adult recreator
17
y*
National upper-boundtime (95th percentile) at one residence (30 years
leas child exposure)
U S EPA, 1997a
ATmu
A Tanging time, n on carcinogens
620$
d
Equal to exposure duratioo for noncarcinogens
U.S. EPA. 19*9
ATcm
Averaging time, carcinogens
25550
d
Equal to 70 years (lifetime) for carcinogens
U.S. EPA, 1989
BW
Body weight, aduit recreator ,
70
kg
Gee era 1 adult population average
U S LPA, 199); 1997,
2 of 10
-------
TaMe C-J. Kiftnre fuiMrtin Ua*4ia Ike Lower Ottawa River HHRA
IhmIkIIMI
Bywiii Papalattoa: Admit bMtjr/aaflo
Bapaawa >4ģ#t: ģĻ fai I wtat
taMrMt
TmmiW Prflilltia
Vttmt
Ualta
Ratlaaale
Rtfttttci
tAĢw
SUaaoifac* an* amakMe fa aarftcawlir coated
Antef boatiag
4500
<Ļ'/ģģ eat
Aaaoal average: naiim hand*, forctrm*, feet, ud low lege for SOS of
man aedhaada ģd forearm ģ far SO* of avails, buad on upper bound
Mai body avrface area
U.S. EPA, 1997a (Tablet 6 4 and
6-M)
K,
hratnmi abaerptwa nta far akia awftu
coatoctwitk water
thaainl-
apacifie
fifcwir
Oiaaiifal apecific
Chemical-cpecific
BT
BlfiiĢlliģa In wrftrģaitir ifciring tĢ1mĢiii| in
wMmf. adalt boatarAiaslar
i
kr/mal
Baaed OB Upper bouidifroa Ohio Boating Survey (Tablaa Stand 5b)
Hutha*. 2000
BF
Ļiifiiwi ftnģin-y to aarface water, adatt
keMvftattor
to
vaata/yr
Baaad os upper bouada from Obio Boating Survey (Tablet Sa and 5b)
lluihak, 2000
ED
Bxpaaan Amttaa. aMtbortat/ aaglM
IT
y
National upptt-bouiid time (9Stb percentile) at
-------
Tabic C-4. Ezpoiure Parameters Used la the Lower Ottawa River H1IKA
SouriK RMB
Bxpoaur, Population: Cfcild rĢcr**tor
Bxponre MMfattm: StdanH
nui
Pirantitr Definition
Sediment ingeetion rate, child recreator
200
mg/d
Standard default soil ingestion rate for child age 1*6
U.S. EPA, 1991
fi
Fraction of sedii&SQt from i contaminated
source
unities*
Assume 100%
Professional judgment
SA mi
Skin turfece vm available for sediment contact
ihtrmg twimming Ot wadlfig, Child fMWltOC
2300
cm'/event
Annual avenge: assume hands, forearm*, feet, and lower legs for 50% of
vests and hands and forearms for 50% of events, based on upperbound
total body surface area
US EPA. 1997a (Tables 6 4 ami
6-14)
AP
Sediment to skin iAihoc* factor
0.2
mg/an
Reasonable upper-bound adherence factor for all exposed skin
U.S. EPA, 2000
ABS
Denal abeorptioc factor for skin lurface contact
with MdiaĢat
chemical-
specific
unities*
Cfcenica]-spec ific
Chemical-specific
CP
Exposure frequency to sediment, child recreator
48
event/yr
S days/month for 4 months and 2 days/month for fc months
Professional judgment
BD
Bxpoeura duration, child recreator
13
yr
Total exposure duratioo, child Mo 14 yeurs
Profession*! judgmenJ
AT|M|
Avenging tune, noo carcinogens
4745
d
Equal to exposure duration for noncarc inogens
U S LPA, 19K9
ATĢ
A waging time, carcinogens
25550
d
Equal to 70 years (lifetime) for carcinogens
U.S. EPA, 19H9
BW
Body weight, child recreator
30
kg
Population mean for children (1 to 14 years), NIIANES HI
U.S. EPA. 1997*
4 of 16
-------
Table C-5. KtfMirt Ftnwlin UsĢ4 li ģk* Lower Ottawa River HHRA
trriftr 1MB
Papeeaia huMw Child rocrMtor
fcfWwMidha: iBtowW
miMilii Cafc
rnMMrMWttM
V*M
1Mb
Rattan nle
Reference
Svfaco mm incidental iafMtioa nit, ckiid
ncratar
0.05
L/kr
Default incidental water ingestion rate
U.S. EPA, )9S9
n
Fractal ef Ģ wut*ģ water mĢaĢad fraa
ģ caataaiiantad mttģ
1
aaklwi
Ataai 100%
Professional judgment
SAm>
8kh nrfK* km mitoMe for wrfnen w*r coat**
dnrhg rateaiBg Ģ hA( child reawtnr
<100
ca'/nveat
Aaaaal average: siaume total body surface km for SOS of the evaota
(swimaiiag/ wading) tad hande aad forearms only Tor 50* of the eveata;
baaod oa upparbouad child 2-H yn old lurface ares
U.S. EPA, 1997a (Tables 6-4 and
6-14)
K.
uaiact with water
cfceoical-
pacific
cmfcour
Obenicnl pacific
Chemical-specific
BT
TTlj in i tiaae to sarfacs w*ee, child nemtu
3
hi/event
Baaed on mean 24-heuj cumulative t imc (pent outdoors at poo), river,
Huby 1 -l7yroldeaad95Kile time per swimming event
U.S. EPA. 1997a (Tabic IVIIU
and p. 15-17)
er
Bxpensa nnyiTiT to avface watar, cfclU rectaator
4t
vaat/yr
t days/boath foe 4 months and 2 days/month for it months
Professional judgment
KD
Bxponrn dmttoa, cklM ncraisc
1)
n
Total exposure duration, child 1 to 14 years
Profession.! judgment
A1U>
Avenging tmaittoofat
474J
d
Bqual to exposure duralios Tor noncarc inogens
U.S. EPA, 1989
AT-
Averaging *"Ļ*
255SO
4
Bqnal to 70 yaara (lifetime) for carcinogens
U.S. EPA, 1989
BW
Body weight, child raeraator
30
k|
Population mean for children (1 to 14 years), NIIANES III
U.S. EPA, 1997a
5 of te
-------
Table C-6. Expoiure Parameter! Used la the Lower Ottawa River HHRA
ScMwrio: KMB
Bxpenr* fopoWieo: Child bo*tĢ7 ugler
Bxpogar* M>dnra: Surface wifrr
NrMwtcrCĢ4*
Parameter DtnalllN
Valve
Uelts
Ratloaale
Reference
SAmm
Skis surface are* tnilibta for curface wwUr contact
dnriai boating
2300
an/event
Annual average: asauae hands, forearms, feet, and lower legs for 50% of
event* and hands andforeanni for 50% of events, baaed on upperbound
total body surface area
Professional judgment
Percotanooua absorption rat* for akin surface
contact with water
chemical*
specific
an/hour
Qienical-specific
Chemical-specific
ET
Bxpotor* tint to surface water 4uring bontiag,
adult rtCToator
6
hr/event
Baaed on upper bound* from Ohio Boating Survey (Tables Sa and 5b)
llushak, 2000
BF
Exposure frequency to surface water during
boating, child recreator
30
evenu/yr
Baaed on upper bounds from Ohio Boating Survey (Tables 5a <ģnd 5b)
llushak. 20(90
ED
Exposure duration, child recreator
13
yr
ToUl exposure duration, child 1 to 14 years
Profession*) judgment
ATtcu
Avmgiag time, aoo carcinogens
4745
d
Equal to exposure duration for noncarcinogens
U.S. LPA, 1989
ATĢf
Averaging time, carcinogens
25S50
d
Equal to 70 years (lifetime) for carcinogens
U.S. LPA, 1 9K9
0W
Body weight, child recreator
30
kg
Population mean for children (I to 14 years), NHANES III
U.S. EPA, 19974
a of is
-------
TĢkb C-7. Bspomr* finwiiri Uicd ta the Lowtr Ottawa River 11HRA
liiTrii- BMB
AMFUkCtmnr
Bxpoonre Madbar Fiih
hMHWM
t HIlw IMrtla
V*K
Haiti
Ralleaalt
Reference
Km
Spert fie* caawaptica rate, xMt
41
l>i
Upper bound ipofl Tub coommption rate for Michigan survey (ģppx
qui to Mtoa full aeala pet year)
West not., 1992 in CalliPA,
1997
n
ftactaoaoffht iwidfteMacoafiaited
INKI
1
aailliu
Adas* 100% tine* inf eatioo rat* U baled oo Ģport Tub consumption
Professional judgmenl
BP
BufMV* freqaeacy to locally caaght fiak
Hi
ifyi
CMMaptm latea Ģ based on annual average
-
BO
Eipmw dnntka. adnlt IWfc maeaia m
17
T
National upper-bound time (95th percentile) at one residence
U.S. EPA, 1997*
ATmm
A waging tea. awKnihogeae
109S0
i
Bqtil to txponn duration for soacarcwogens
U.S. EPA. 1989
AL.
Av*acfcftfcM,caciaofMĢ
25550
d
Bqoat to 70yģafģ (lifetime) for carcinogens
U.S. EPA, 19S9
Wmm*
70
k|
Oeaeral adult population average
U.S. EPA, 1991ģ; 1997.
7 of 16
-------
Table C-8. Exposure Parameter* Used ia the Lower Ottawa River HHRA
Smbvw: RMB
Expoauri Population: Child Fuh Consumer
BxpoĢttrĢ Mģdhm: Puh
hrtmttr Cod#
Paruitttr DtflaltlM
Valve
Ualls
Rationale
Reference
Uta*
Sport fuh consumption rate, child
It
g/d
Upper bound sport fuh consumption rate for Michigan survey, adjusted
foe body weight weighted by age group and number of respondents
West et al.t 1992 in CalEPA,
1997
n
Practice* of fuh consumed from a coctanmated
soorce
'
unities*
Assume 100% since ingestion rate is based oo sport fish consumption
Professional judgment
BF
Exposure frequency to locally caught fish
365
d/yr
Consumption rate* are based on annual average
...
BD
Expoeure duration, child fuh consumer
13
yr
Total exposure duration, child 1 to 14 years
Professional judgment
ATiw
Averaging time, boo carcinogens
4745
d
Equal to exposure duration for ooncarcinogens
I'.S. EPA. 19K9
ATcw
A waging time, carcinogen*
25550
d
Equal to 70 years (lifetime) for carcinogens
U.S. EPA, 1989
BW
Body weight, chikl ftfh consumer
30
kg
Population mean for children (1 to 14 years). NHANES III
U.S. EPA. 1997a
8 of 16
-------
TaMa C-9. Iiptnti FiriMttri UiĢ4 ii the Lower Ottawa River HHRA
rfiriir err
DģyĢi Papmlatioa: AMncnaUr
BiyowriMijhK SwB1
FkimIkMi
PwaawMr DaflaMaai
VllH
Ualts
Rationale
Reference
nu
Sadimaat afMtton rata, adalt recreattr
5#
mf/d
Ami|i adalt toil ingestion rate
U.S. EPA, 1991; IV97i
n
ware*
as
aaitlees
AmuuSOK
Professional judgmenl
SAmi
StteaarhcamamUaMararsadmataaalact
dHtafnriaafcf Ģrmdk|,*daltrĢcrMl
-------
Tabic C-10. Exposure Purameteri Uģed la the Lower Ottawa River H11RA
Sctanio: CT
Bxpwnre Population: Adult recreator
Exposure Medium: Surface Water
hnaiteCak
Parameter DeflaHtoa
VUmt
UftlU
Rationale
Reference
IIU*
Surface water ingestion rate, adult recreator
0.05
LJhr
D*failt incidental water ingestion rate
U.S. EPA, 1989
pi
Fraction of rarfaca water ingested from a
contaminated eource
O.S
unities*
A mm me 5 OS
Professional judgment
Um.
Skin surface an* ģv*ilable for surface wtin contact
daring swimming or wading, adult mMlflr
11000
an/event
Annual average: assume total body surface area for 50V* of the events
(swimming/ wading) and bands and forearms only for 50% of the events;
bated on mean adult body surface area
U.S. LPA. 1997a (Tables 6-4 ami
614)
Kr
Percutaneous absorption rale for skin surface
coatact with water
chomical-
specific
cm/hour
Chemical-specific
Chemical-specific
BT
Exposure time to surface water during swimming or
wading, adult recreator
1
hr/event
Based os 50ttile time per swimming event
U.S. LPA. I997d (fdhlr !<-1 !U
and p. 15-1 7)
BP
Exposure frequency, adult recreator
16
eventt/yr
Approximately 2 d/month for 4 months + 1 d/month for 8 months
Profession*! judgment
ED
Exposure duration, adult recrtator
9
Y*
Average line at one residence
U.S. LPA, 1997a
ATicu
Averaging time, HOC carcinogen*
3285
d
Equal to exposure duration for noncarcinogeos
U.S. LPA, 1 9K9
ATĢr
Avenging time, carcinogens
25550
d
Equal to 70 years (lifetime) fin carcinogens
U S LPA, 198V
-
I
70
kg
General adult population average
U.S. LPA. 1991; JVV?*
10 of 16
-------
TaMa C-ll. Eqwnrt Paraawtcrģ Uitd la the Lower Ottawa River HHRA
Scrii: CT
BxpaanPopalatMia: Adalt boĢtĢr/aaflet
Italian htadaģ: Surface watar
fM
PanatMr IMkttiw
VdM
Uattt
Ratleaale
Rtftriui
31daĢwfreawaaģaUaMa (or Ļ tin
deaicaj-specific
Chemical-specific
BT
BKpaav* time to nrtace water
-------
Table C-12. Exposure Paraneters Used ia the Lower Ottawa River I1HRA
Sctnario: CT
BxpocorĢ Population: CUM racraator
Bxpoaare Mitot: SadinĢat
Fvurin Cb4i
DtflaMaa
Valve
Ualts
Rationale
Reference
IR^
Sodinenl mgwtioc ret*, child recreaUr
140
mg/d
Average standard default soil ingestion rales for child age 1 -6 and 7-14
U.S. EPA. 1991; Professional
judgment
PI
Fraction of aodimant i|ĢM bom Ļ contaminated
aource
0.5
unities*
Assume SOS
Profession*! judgment
SA-d
Skin surface ma available foe 1Ģ contact
during swimmiag or wading, child recreator
2200
cm3/event
Aaaual average: assume total body surface area for 50% of the events
(swimmiag/ wading) and hands and forearms only for $0% of the events;
based on median child 2-14 yrs old surface area
U.S. EPA, 1997a (Table* 6-4 *nd
6-14)
AF
Sediment to skin adherent* factor
0.1
mg/an
Reasonable average adherence factor for all exposed skin
U.S. EPA, 2000
ABS
Dermal ģbĢxptioĢi factor for ikin surface coo tact
with ladiment
chemical-
specific
unities*
Cfcenical-apeciTĢ
Chemical-specific
BP
Exposure frequency to sediment, child recrestor
30
veau/yr
Approximately 4 d/mlh for 4 months + 2 d/mth for 4 months v 1 d'mth for
4 months
Profession J judgment
ED
Bxpoeure duration, child racrtetor
9
y*
Average time at one residence
U.S. EPA, 1997a
ATmh
Avenging time, noacircDOgciu
3285
d
Equal to exposure duration for noncarcinogens
U.S. EPA, mv
AT.
Averaging tint, carcmogvac
25550
d
Equal to 70 years (lifetime) for carcinogens
U S EPA. I9K9
BW
Body weight, ckild rcreator
30
kg
Population mean for children (1 to 14 years). NIlANES III
U.S. EPA, 19V7a
12 Of 16
-------
TaU* C-1J. Kxponur* FiruMttri Um4 U the Lower Ottawa River HHRA
iHwk cr
IlKflWilfBflrttlW: Otld ITIMtOf
PjiFuea^ MaAaa: SarfacewatM
hntiHn Cifc
InMUrMkMM
Vrfaa
Ualta
Ratlaaale
lUfiriiH
DUaa
Sarfac* water iacidatal tagaetiaa Ml, child
racnaMr
0.03
LAr
Defeat! iacideatal water ingestion rela
U.S. EPA, 19ģ9
n
Pwttw of wdheet * swfcee ene I^eled ftee
tc^MiuUmra
as
UttieM
AimmJOH
P rofessional judgment
SA.*
Ski* surface ģea a*mi labia for surface w*r caaiact
derio< |Ģiin ilaretirn -ii'-1
9
n
Averafe lima at oae residence
U.S.fcPA. 1997 a
AT_
\wirn tiM. aaaorcioafaai
33 SS
d
Bqaal to wpotura durauoo for ooncarcmogens
U.S. EPA, 19*9
AT
AmngiBt tia*. cĢiM(M(
25550
d
Pf|aal to 70 years (lifetime) for carcinogens
U.S. EPA, 1ĢK9
BW
BoJy waģĢ>t. ckild lecreator
JO
k<
Fcpulalioe mean for children (1 to 14 years), NIIANES III
U.S. EPA. 1997a
13 of 16
-------
Table C-14. Expoiure Faraaeteri Vied la the Lower Ottawa River HHRA
ScĢuno: CT
Bxpomn PopoUtian: Child bottar/ uglu
Bxpawra MĢdinm: Surf>cĢ witer
faraatttr C*4c
Parutltf DffliHIn
Valae
Unite
Rationale
Reference
SAm.
Skin surface tree available for surface water contact
during boating
2200
c&Vevent
Annual average: assume hands, forearms, feet, and lower legs for 50% of
events and hands and forearm* for 50% of events, based on median child
2-14 years old total body surface area
Professional judgment
K.
Percutaneous absocptioo rate for skin Mrface
contact with water
chemical-
specific
cm/hour
Chemical-specific
ChcmKal-&pecific
BT
Exposure time to surfaco water daring beatific,
adult recreator
6
hr/event
Based on upper bounds from Ohio Boating Survey (Tables 5a and 5b)
Hushak. 2000
BP
Exposure frequency to surface water daring
boating, child recreator
30
events/yr
Based on upper bounds from Ohio Boating Survey (Tables 5a and 5b)
Hustuk, 2000
ED
Exposure duration, child recreator
9
yr
Average tune at one residence
U.S. hPA, 1997a
ATiai
Averaging tine, boo carcinogen*
3285
d
Equal to exposure duratioo for noncarcinogens
U.S. liPA, 1989
ATtw
Averaging time, carcinogen*
25550
d
equal to 70 years (lifetime) for carcinogens
U.S. hPA, 1989
BW
Body weight, child recreator
30
kg
Population mean for cbildreo(l to 14 years), N11ANES 111
U.S.fcPA. 1997*
14 of 1Ģ
-------
TaM* C-I5. Expoaart FtruMim UĢed ii the Lower Ottawa River HHRA
leaak CT
Bxpoaar* Fopmlalioa: AddtFUCowiwi
Bnpow Modha: Fufc
hiwMCiii
rratlsIMklHa
Vriae
UmtU
Ratloaalt
Rrftrtsrf
ou*
Sped fish coaauaptiaa rate, adult
7.3
Mm# ^port fith coaAunptioo rate for Michigan survey (appx equal to 10
too. rĢk meals per yt)
Wtitelal., 1992 tnCalfcPA,
1997
n
aom
1
witleaa
Aanw 100* aince ingeation rate ia bated on sport fish consumption
Professional judgment
BP
Bxponra (raqasacy to locally caught fith
MS
itfT
Coajuaptiaa rates v< based on annual average
-
BD
Bxpaenre dwrntioa, sdalt fisa Coonoiar
9
n
Average tine at oaa residence
U.S. EPA, 1997s
ATmu
Awi|i>| tee, Macareaocto*
3215
d
Bqwa1 to axpocura duration for noncarcinogeas
U.S. EPA, !9Ģ9
ATĢ
Arn|a| time, cwiupM
255SO
d
Eqoal to 70 years (lifetime) far carcinogen*
U.S. EPA. t9Ģ9
la^nilKiMMkMcanM
70
U
Population mm far nuleafl *-74 yean), NHANES III
U.S. EPA. 1997a
15of16
-------
Table C-16. Bipoiure Parameters Uitd ia tke Lower Ottawa River HIIKA
Scmirio: CT
Bxpoenra Popalilioe: Chili Pixh Conjumer
BxpoĢBrĢ Mwfcam: FiĢh
NiwĢltrC*di
PtrwtlĢr DeftaUtoa
Vwint
UģIU
Ralltaalt
Reference
IRm
Sport fish consumption raw, child
3.1
g/d
Mean sport fish consumption rate for Michigan survey, adjusted for
body weight- population specific values will be used to present a
range of exposure esttmates
Wesl et ai., 1992 in (\< IIP A,
1997
n
Predion of fish consumed from a contaminated
aource
1
unities*
Assume 100H since ingestion rate is basĢd on sport fish consumption
Professional judgment
BF
Exposure frequency to locally caught fiģh
365
d/yr
Consumption rates arc based on annual average
...
BD
Exposure duration, child fiih consumer
9
yr
Average time at one residence
U.S. EPA. 1997a
ATacu
Averagingtime, non carcinogen*
3285
d
Equal to exposure duration for noncarcinoyen*
U.S. EPA. 1989
atc*
Averaging time, carctnogena
25550
d
Bqual to 70 years (lifetime) for carcinogens
U.S. tPA. 1989
BW
Body weight, child fish consumer
30
kg
Population mean for children (1 to 14 year*). NHANES 111
U.S. UPA. I997*
16 et 16
-------
APPENDIX D
Risk Calculations and Pathway-Specific Risk Summaries
Lower Ottawa River Human Health Risk Assessment
Printed on recycled paper
-------
Tabic D-l. Cue* Rlik Cikaletio*ģ (or Sedlmesl Coitmd Scenario*
Stgml 1 (RM 0 to <3i)
lliifcMMki Bhfchc laclliifrl hawtt Ijcwtoc
C
IS
Cf
n
ft
IF
D
ģW
AT(d)
LADD
laud
9
Cuccr
Ctlul
(Ļ***) i
<-Ģ
Ģ <*** "
(ulClMi) t
futtfcM
s t
(yr)
l (fee)
i ladd -
Rbt
Aldnn
0.02
200
1.&46
1
4*
13
30
2SSS0
3 3E-09
AMi
0.02
SO
i.oe-06
1
24
17
70
25550
2 3E-IO
3.5E-09
1 7E+0I
S9E-0*
Amtue
Odd
9.42
200
1.0B-06
1
41
13
30
25550
I 5E-06
AMI
9.42
SO
1.0&-06
1
24
17
70
25550
I.IB-07
I6E-06
15E*00
2 St-0b
Bwrn( i)in1biMt<
Odd
0.31
200
l.QE-06
1
1
4S
13
30
25550
5 OE-OS
AMI
0 31
SO
1.0B-O6
1
1
24
17
70
25550
3 5E-09
5 4E-08
7 3L-0I
3 9F.-0K
BĢRzo[ģ)pyrĢw
cut
0.37
200
1.0E-06
1
1
41
1)
30
25550
6 1E-0S
. AMI
0.37
SO
1.0&O6
1
1
24
17
70
25550
4.3E-09
6 5E-04
73E*00
4 8E-07
BĢruo{k )flģorĢitLĢM
add
0.42
200
i.oe-06
1
1
4t
13
30
25550
6.8E-0S
AMI
0.42
SO
1.0M6
I
1
24
17
70
25550
4.7E-09
7.2E-0*
7 3E-0I
5 3E-08
Bwo(k}fiwr*dMae
Odd
an
200
(.06-06
1
i
41
1)
30
25550
J2E-07
AMI
0i72
SO
I.OE-06
1
i
24
17
70
25550
& 2E-09
I.3E-07
7.3E-02
9 IE-09
fau(2-BthyUģxy4)pkdMUta
Odd
111
200
1.06-06
1
i
48
13
30
25550
3.4E-07
AMI
til
SO
I.0B-O6
1
i
24
17
70
25550
2 4E>08
3 7E-07
1 4E-02
5 1E-09
add
0.40
200
I.OE-06
1
i
4S
13
30
25550
6 5E-08
AMI
0.40
SO
l.QE-06
1
i
24
17
70
25550
4 6E-09
70E-08
7 3F *00
5 IL-07
Drtldna
Odd
0.04
200
1.0B-06
1
i
4t
11
30
25550
6 3E-09
AMI
004
SO
I.OE-06
1
i
24
17
70
25550
4.4E-1Q
t>.8fc-W
1 61. ~Ol
1 lt-U7
R^ucllcr Ļpond*
Odd
0.03
200
1.0E-06
1
4&
11
30
25550
4 IE-09
AMI
0.03
SO
1.0E-06
1
i
24
17
70
25550
2 9E-10
4 4E-09
9!fc*00
4 0F-0X
btdĢfK>|U.5-<4tpy"M
Odd
0.29
200
1.06-06
1
l
41
13
30
25550
4 6E-0&
AMI
0.29
SO
I.OE-06
1
t
24
17
70
25550
3 3E09
S 0E-0S
7 3E-0I
3 6E-0*
M Mitrrun ft fripjUwiM
QM
054
200
i.oe-06
I
48
13
30
25550
8UE-08
Add!
0 54
SO
1.0E-06
1
24
17
70
25550
6 2E-09
9 4E-0S
7.0E*00
6 6E-07
TĢĢal PCBĢ
CUd
1.27
200
1.0B-06
1
i
48
13
30
25550
2 IE-07
AMI
127
SO
1.0E-06
I
l
24
17
70
25550
1 5E0S
2 2E-07
2 0HĢ 00
44E07
49K-04
tan
-------
TĢM> D-L Owr BMc Crtrwlxlnn for MmI Coated Sowrioi
ĻWin
CkmImi
c
<*Ļ*>
K
(ĢAVnĢ
o
19
I
Ģ ) "
AOS
(nMm)
cw
Ģ Ģ
V
(vMtfyr)
*x>
* Grr)
IW
1 (hi)
AT<*)
1 LAM -
UOD
0-ttrfl
LAPD
"Ļ TE^J
sr
(Ģ*%**)'
Cutir
Rtt
mk
dU
di8
2A6
03
0!
\0
25550
1.2B-00
AM
031
4300
03
01
1.0B46
24
17
70
25550
6 3E-09
1.46-01
2.4E+0O
4.2E-0V
aii
037
DOO
03
01
l.QE-06
a
13
30
25550
I.4B-0*
AMI
057
4500
03
01
ICON
24
17
70
25550
7.7E-09
2.2M
2-4E+0I
5.1E-07
cm
043
2300
03
01
1.0646
a
13
30
25550
J.6E-04
AMI
043
4500
02
ai
1.0M
24
17
70
25550
L5B-09
2.4E-0*
2.4E-ģ00
57E-0Ž
CMi
an
2300
02
01
106-06
4t
13
30
25550
2.7E-00
AMI
an
4500
02
ai
1.0&06
24
17
TO
25550
I.5E-06
4.2E-00
2.4E-01
9.1E-09
Oil
XII
2300
02
01
1.0fc46
41
13
30
25550
79R44
AMI
in
4500
02
at
MM
24
17
70
25350
4 3E-0ģ
J.2E47
7.4E-02
9.0E-09
Uku^a^HteiMi
cm
0l40
2300
02
at
i.OM
a
13
30
25550
1 5E-04
AMI
aoo
4500
02
01
1.0M
24
17
70
25550
t.2E-09
2JB4H
2.4E+01
5.5E-07
TMrm
an
OM
2300
02
at
I.OM
44
13
30
25550
15B-09
AMI
OM
4500
02
01
1.CR46
24
17
70
25550
ooe-io
2.3E-09
3.2E+01
7.2E-08
cm
009
2300
02
01
l.ĢM
44
13
30
25550
9.4E-10
AMI
003
4500
02
01
1.0M
24
17
70
25550
5.1E-I0
J4E-09
I.3E+01
1 4E-0ģ
WĢw| 1
CUi
02ģ
2300
01
01
1 am
40
15
30
25550
11E-06
AMI
029
4500
02
ai
i.om
24
17
70
2S550
5.9E-09
i.im
2.4E"00
3 9E-08
Htlifcy 0 affj*
cm
054
2)00
02
ai
I.OM
40
13
30
25550
2 0E-0I
AMI
0S4
4500
02
ai
1.0846
24
17
TO
25550
MM
JIM
2.lE*0l
8%E-07
TMd KSs
Oil
1.27
2MB
OS
00*
I.OM
40
13
30
25550
2 9E-04
AMI
I.JT
4500
u
0.06
I.OM
24
17
TO
25550
1.6640
44M
1.2E+00
9.IE-0*
2<*t*
-------
Tabl* D-L Ctietr Rlik Calculation for SĢtoeit Coatact ScĢajuiot
CT ftuwUi MA IW hdiwld lm ģ
ģ (Mm)
(uMm]
X (uttlM)
s (tvtfet/yr) t
0l
I 8K-0S
Atmiuc
add
9.42
140
1.06-06
I
1
10
9
10
2SSS0
46E-07
AMi
9.42
SO
I.0B46
1
1
16
9
70
25550
3ģE-0t
5.0E-O7
1.5E*00
7 5E-07
BĢuo{Ģ)Ģb threw*
chu
0.31
140
1.0M6
1
1
M
30
25550
1 5E-4*
AM
O.il
SO
I.0E4K
1
1
16
9
70
25550
1 2E-09
1 6E-08
7 3E-01
1 2P-0H
Bmn(i)p)!rĢw
Odd
0.37
140
1.0846
1
1
10
9
30
25550
1 8E-0*
AM
0.17
SO
1.0B4C
1
1
16
9
70
25550
15E-09
2 0E-OS
7.3B*00
1 5E-Q7
Odd
0.42
140
1.0E-06
1
1
30
9
30
25550
2.0E-OS
AM
0.42
SO
1.06-06
1
1
16
9
70
25550
1.7fi*09
2 2E-08
7.3E-01
1 6E-08
Bwjofkjftinf ifcwĻ
Odd
o.n
140
1.Q&46
1
I
10
9
10
25550
5 5E-0*
AMI
0.71
SO
t.O&Oi
1
1
16
9
70
25SSO
2.9E-09
3&E4W
7.3E-02
2UE-09
hģ(2-E*M>ģx)4)pkUul*ģ
add
2.11
140
I.0B-O6
1
1
30
9
30
25550
10E-07
AMI
2.11
SO
1.06-06
1
1
16
9
70
25550
15E-09
1JE-07
I.4E-02
1 6E-09
Oibau(ģ>)aatincĢM
CWd
0.40
140
1.0E-06
1
1
10
9
30
25550
2.0E-0Ž
AMI
040
50
IGB-06
1
1
16
9
70
25550
1 6E-09
2.1E-08
7 3E+00
1 6E07
DiĢidnn
add
0.04
140
I.0&4*
1
1
10
9
30
2SSS0
1 9E-09
Addt
0.04
SO
1.0E-06
1
1
16
9
70
25550
1 6B-10
2 1E-09
1 6Et0l
1 JL'-OS
HĢp Uckkr ĢpondĢ
Odd
0.0}
140
i.oe-06
1
1
10
9
30
25S50
1 2E-09
Adah
0 03
SO
1.06-06
I
1
16
9
70
25550
) OE-IO
1.3E-09
9.lEģ00
J 7F-0H
biH 1 Jl,yc4)jym*
Odd
0.29
140
1.0E-06
1
1
10
9
30
25550
1 4E-0*
AM
0.29
SO
1.0E-06
1
1
16
9
70
25550
1 1E-09
1 5E-0*
7 3E-01
I lE-OU
N-Nrivoflfr-A-B-fiopyiMUM
cm
0.54
140
1.0B-06
1
I
30
9
30
25550
2 7E-08
AM
0.54
SO
I.OS-06
1
1
16
9
70
25550
2 2E-09
29E-OS
7.0b *00
2 OE-07
Total KB*
CUd
1.27
140
ioe-06
1
1
30
9
30
25550
6 3E-0H
AM
1.27
SO
i.oe-o6
1
1
16
9
70
25550
J-lfi-09
6tŖ-08
20E'QQ
1 4fc-07
1.5E-06
IflTH
-------
TabbD-L
Caacar Uk CiImMwi for giMwirt Caatact
SccaariM
~ar
C
Ait
cr
C% Willi
teftar
Ģ)
* ) *
(Ģ>ĢM
M-*
oat
464
2200
at
ai
l.fe*
A**
0.02
5500
At
01
lĢ4f
Amk
am
9.41
2200
01
O.OS2
ioe-06
ami
42
9500
0.1
aon
l-tt-ot
BwmtQMiwf
cm
OJI
2300
ai
ai
loe-ot
AMI
U1
9500
ai
ai
1.0B4*
ou
an
2300
ai
0.1
10E-06
AMI
0J7
3)00
ai
ai
106-06
fanftlflw
cm
0.42
2100
0.1
ai
toe-o<
AMI
0.41
9500
at
0.1
I.QfeO*
CM*
an
2100
ai
ai
I-C6-06
AMI
a 72
9500
0.1
0.1
l.0tti
tofl-BMfcwtyOiK >ĻĢģ
cm
2.11
2200
at
(M
tce-i*
AMI
111
3300
ai
0.1
1.0B4*
MbiK>)mAwi
a*t
0.40
2200
ai
01
I.0B-06
AMI
040
9500
ai
01
I0&O6
Mfcģ
QM
ao4
2200
ai
0.1
1.0B-0*
AMI
aoĢ
9S00
aj
ai
10&06
cm
aw
2200
ai
0.1
t.o&ot
AMI
0.03
1500
ai
01
)0R-06
Oil
0.29
2200
ai
0.1
ioeo6
AMI
0.29
9S00
ai
ai
l.a&Oi
D-Wiiw t Ļ i
cm
0.14
2200
ai
0 1
tJOKM
AMI
0.54
9500
ai
ai
l.OE-Of
TaMFCSa
ati
1.27
not
ai
0.06
i.OM
AMI
1.17
ISO0
01
0.06
l.OM
ST
n>
ģw
AT (4)
LADD
UftD
9
Cwtir
(wmVfT) s
(IT)
1 .)B49
16
9
70
25S50
1 IE-09
4 2R-09
2 4EĢ0I
9 9E-0H
90
9
90
25550
3 0E-10
14
9
70
25550
1 IE-10
4 1E-I0
3 2E*01
1 JF.-0H
90
9
90
25550
1 9E-I0
16
9
70
25550
7 0E-II
2.6E-I0
1 3E*0I
3 3K-09
90
9
90
25550
2 2E-09
14
9
70
25550
406.10
i OE-09
2.4fcģ00
7 IE-09
SO
9
90
25550
4 2E-09
14
9
70
25550
1 5IMI9
5.7B-09
2 8EĢ0t
I 6E-07
90
9
90
25550
5.9E-09
M
9
70
25550
2 2E-09
tlB-Oi
2 2RĢ00
1 8E-0S
MS-07
4ĢW
-------
Table D-l. Caiear Rbk Cakulatiou for Scdimeal Cottart Sceaatios
StgmMt 2 (RM 3 J to <4J)
IMHwln Ihfcfar hiiĢntel I
ImgmUVom
C
1ft
C9
11
B
I*
KD
IW
AT(d)
LADD
LADD
a?
Ctsccr
Ckmikal
(Ļ**) Ļ
1 *Ŗ*
OiMm)
Z (MltlMl)
s (iml/jfr) t
(n)
m
x LADD -
(**<*)
R1ik
Aldnn
cU
0.05
200
1.Q&06
1
1
a
IS
90
25550
7.JE-09
AMi
0.05
50
1.0B46
1
1
24
17
70
25550
5 1K-I0
7.8E-09
1.7E+0I
1 3E-07
Anwc
cm
11.40
200
1.0*06
1
1
48
15
M
25)50
1 9B-06
ami
11.40
50
10B-O6
1
1
24
17
70
25550
1 3E-07
2 OE<06
1 5E*O0
3 0E-06
cm
0.19
200
I.OR<06
I
1
a
IS
30
25550
1 4B-07
AM
0.89
50
1.0&06
1
1
24
17
70
25550
1 OE-OS
1.5E-07
7 JE-01
t-IE-07
BĢAro|ģ)p)lfĢa*
a*
0.75
200
1.0&06
1
I
a
13
30
25550
) 2E-07
AMI
075
50
1.0^06
1
1
24
17
70
25550
8.5E-09
t 3E-07
7.3E+O0
95E-07
Bmxo(bphMraAĢM
cut
lit
200
1.0646
1
1
4$
IS
30
25550
2-IE-07
AMI
I.2S
50
I.0&0*
I
1
24
17
70
25550
1 5E-08
2 2B-07
7 JP-OI
1 6h*07
Boaolkjhondlkw
OaU
0.71
200
10E-06
1
1
48
1)
30
25550
I 2E-07
AMI
0.71
50
1.0B46
1
1
24
17
70
25550
8 | R-09
I 2R-07
7. Jfc-02
9 0E-CN
btĢ(2-ediyUMĢyl)ydalHUH
Odd
11.00
200
l.0B~O6
1
1
48
13
30
25550
1 ĢE-06
AMt
11.00
50
1.0&06
1
I
24
17
70
25550
I 3E-07
1 9E-06
1 4E-02
2 7K-0S
DibĢju(tģudncĢM
Odd
060
200
1.0&06
I
I
46
13
30
25550
9 8E-08
AMI
0 60
50
1.0&06
1
I
24
17
70
25550
6 8B-09
1 OE-07
7. 00
7 6H-Q7
Ehaldra
cm
0.03
200
1.06-06
1
1
48
IS
30
25550
4 9E-09
AM
o.os
50
1.0B>06
1
I
24
17
70
25550
3 4F.-I0
5 2H-D9
16F*0l
b 4E-0H
thplachlor ĢponiĢ
cm
0.01
200
1.0E-06
I
1
48
13
30
25550
1 3E08
AMI
0.0*
50
1.06-06
1
1
24
17
70
25550
9 2E-I0
1 4E-08
9 lfcĢ00
1 )t-07
1 ,2
CM*
0.51
200
1.0E-06
I
1
48
IS
30
25550
9 4E-08
AMI
o.st
50
1.0E-O6
I
1
24
17
70
25550
6 6E-09
J.0E-07
7 yf:-0l
141-0*.
Odd
1.00
200
1.0B-06
1
1
48
IS
30
25550
1 6E-07
AMI
1.00
50
1.0B46
1
I
24
17
70
25550
1 1E-08
1 7E-07
7.0E*00
1 2E-06
Tool PCBĢ
cm
3.66
200
1.06-06
1
1
48
IS
30
25550
60E-07
AMI
3 66
50
10E-06
1
1
24
17
70
25550
4 JE-08
6 4E-07
2 0EĢO0
1 3H 06
trftt
-------
MbO>L Cuor KWc CakalallaM far Sadlmat Coated Sctaariw
iuj-
C
ģ
AM
^SST-
W
Ļ )
1 X
cm
(OS
2500
12
01
AMI
0.05
4500
02
01
CM*
11.40
2)00
02
OOS2
AM
11.40
4500
*2
0052
OU
0 M
2500
*2
0.1
AAA
000
4500
02
01
OU
0.75
2500
02
01
AMt
0.75
4500
02
O!
AM
i.at
2500
0.2
01
AAA
1.20
4500
03
O!
OH
ATI
2500
02
01
AMI
071
4500
02
Ol
CM*
11.00
2500
02
Ol
AMI
11.00
4500
02
0.1
CkU
&Ģ0
2500
02
01
AMI
ooo
4500
02
01
cm
0.09
2500
02
01
AMI
005
4500
02
ot
OAi
ooo
2500
02
01
AMI
0.01
4500
02
01
cm*
0.50
2500
02
01
AMI
0.50
4500
02
01
OH
1.00
2500
02
01
aMi
1.00
4500
02
01
CMI
IK
2500
02
oo*
AM
M0
4500
01
ooo
cr
w
ģW
AT(4>
LADD
LADD
V
Cucir
k (iwMr) x
(y*)
1 do
x LADD -
(Ļ%**)
'
=
Rkk
l.Ģ46
a
15
50
25550
1 7E-09
1.0646
24
17
70
25550
9 2E-I0
2.6649
54E+OJ
V.9B4B
i.oe-ot
40
15
10
25550
I.4E47
1.0646
24
17
70
25550
7.5640
2.IE47
3.7E+00
7.7E-07
ioe-M
a
15
50
2S550
33E40
1.0646
24
17
70
25 5 SO
1 0E40
51 Ŗ40
24B+00
1.2E47
1.0646
40
IJ
50
25550
2.0640
1.0646
24
17
70
25550
1.5E46
45E-00
2.4e*0l
1 OE-06
I.C6-06
40
15
50
25550
4.9E40
106-06
24
17
70
25550
2.0641
7.4E40
2.46*00
I.7E47
1.0644
40
15
50
25550
2.ĢE4t
i.oe46
24
17
70
25550
1.5641
4.IE40
2.4641
9.66-09
1.0646
40
15
50
25550
4.1E47
1.0646
24
17
70
25550
2.5647
6.4B47
7.4642
4 7E-0*
1.0646
40
15
50
25550
2.2E46
1-0646
24
17
70
25550
I.2E46
3 5640
2.46*91
S2E-0 7
1.0646
40
(5
50
25550
M640
1.0646
24
17
70
25550
6.2E-10
1.7E49
5.26*01
5 6E4*
1.0646
40
15
50
25550
3.0649
1.0646
24
17
70
255SO
1.7640
4.7640
1.56*01
5 9fc.Q&
1.0646
40
15
50
25550
2.26-00
1.0646
24
17
70
25550
1 2640
5.4B4I
2 4Eģ00
7 9E-0*
1.0646
a
15
50
25550
5.7C40
1.0646
24
17
70
25550
2 IE40
55641
2.ģ6Ģ01
1 6E-06
1.0646
40
15
50
25550
S.2E40
1.0646
24
17
70
25550
4.56-00
1 3647
2.26*00
2Ģe-o?
*tĢ1Ģ
-------
Table D-L Caacar Mik Calculation far Sedfgual Coatact Sceaario*
CT mrioi RWt fw !Ļ dilate] Uf ttMxyl)plukdai*
Odd
11.00
140
i.oe-06
1
1 30
9
30
25550
546-07
Adah
11.00
SO
l.OE-06
I
1 16
9
70
25550
4 4E-08
5.9E-07
1 4E-02
ģ2E.(W
DibĢx{tģK)uUlncĢM
Odd
Ql60
140
106-06
I
1 30
9
30
25550
3.0E-08
Addl
0.60
SO
1.06-06
1
1 16
9
70
25550
2 4E-09
32E-W
7 3Eģ00
2-3K-07
DiĢldna
odd
Ol03
140
i.oe-06
1
1 30
9
30
25550
1.56-09
Adah
0.03
SO
1.06-06
1
1 16
9
70
25550
1 2E-10
\ 66-09
1 6E*0I
2 6H-0h
HtpUcUor tpĢ4i
Odd
0.0C
140
106-06
1
1 50
9
30
25550
4 OE-09
Addl
0.0Ģ
SO
t.OE-06
I
1 16
9
70
25550
3 3E-I0
4.3E-09
9.1EĢ00
J.9F-0*
lģdĢao[l ,2,3-cdtpyvm
add
0.SĢ
140
t. 0E-06
1
1 30
9
30
25550
2 9E-0Ž
Addl
Oil
so
1.06-06
1
1 16
9
70
25550
2 3E-09
3 16-08
7 Jfc-01
2 3E-OJ4
N-NitrŠģo-A-*-propyUmi**
Odd
1.00
140
1.06-06
1
1 30
9
30
35550
4 9R-0K
Addl
1.00
SO
1.0B-06
I
I 16
9
70
25550
4. OE-09
5 3E-0*
70Eģ00
3.7U-U-
Toul PCS#
Odd
J.Ģ
140
1.06-06
1
1 30
9
30
25550
1 6E-07
AM
3.66
SO
1.0E-06
1
1 16
9
70
25550
I 5E-0S
2.0E-07
2 OF *00
J.96-07
ittn
-------
nkltD-L CaaorBfak
crtiiMrtniniiii 1 t imiiiciMi
~BT
c
w5 -JT re
(ts'lfcrw (
*****
AM
cr
BT
t) Ģ
) Ļ
(UN
Ģ MM i 1
;ĢvMVyr)
iW>
ai
Oil
L.QM
30
J M0
ai
OlI
l.QB-04
16
2200
ai
aaģ2
l.QC-06
W
IMP
at
0.002
14
2200
aj
Oil
IWH
JO
3M0
ai
0.1
1.QB4*
1*
2200
01
0J
i.ob-04
ģ
SS00
ai
Oil
lA4i
14
2200
ai
Oil
l-CC-04
30
ssoo
ai
Oil
1.0B4*
1$
2200
0.1
ai
j.ob*4
SO
)M0
0.1
OlI
1.SB46
1*
2200
ai
ai
J.flM
>0
)M0
ai
0.1
1.0IM
14
2200
ai
0.1
1.0B-06
30
9900
ai
OlJ
I 0B-O6
14
2200
ai
at
1.0B-04
30
3500
at
at
I0&O4
JĢ
2200
ai
ai
1.06-06
30
MOO
ai
at
I.0B44
(4
2200
ai
at
1.0B44
30
uoo
at
ai
I.0B44
16
2300
at
at
i.aeot
30
>500
at
ai
I.0BM
14
2200
Oil
aw
I.0&O*
SO
MOO
Oil
0.06
1.0844
14
AM a 04
Amk ail 11.40
AM 11.40
ln|i|rtiģ CkU QJģ
AM Mģ
hw|ilnnt an aw
am o-w
CM! IK
am ia
ONU 0.71
AM 0.71
(Mi 1100
AM >100
cMi au
am o.Ģo
aii 0.09
AM 0.0S
CMI oot
AM 0.00
an w
AM 0.41
W4ģ>iĢ CMi 1.00
AM 100
MKk OH M*
St*
erfts
it (Mm) SaurlH
"B55ST
W
AT(^
LADD
LADD
9
Cuter
' <*)
i LADD -
<Ļ****)
(afttfrV
KM
3Š
255*0
5 5E-IO
70
25550
I.SB-tO
4.IC-I0
J.4E*CI
J 6E-04
30
25540
JiE-O*
70
25550
l.OB-Ot
J.9E-00
J.TEt-OO
( 4E-07
30
25550
6.9E-09
70
25550
2.5B-0?
9.4E-09
Z4EtOG
2 2E-04
SO
23550
5 te-09
70
25550
2 IE-09
79E-09
2.48*01
1 9E-Q7
SO
25SS0
9.98-09
70
25550
3 6E-09
I.4E-04
2 4E+00
3.2E-0*
M
25550
5.5R-09
70
25540
2.0B-09
7.SB-09
14E-0I
1 4E-09
30
25)50
ģ5E-0ģ
70
25540
5- 1E-04
12E-Q7
7.4E-02
K6H09
30
25550
4.6E-09
ģ
55550
I.7E-09
61E-09
2 4E+01
1 iH-07
30
25550
2.3E-I0
70
25550
15E-U
3 2E-10
3.2B+01
1 OE-0*
30
25)50
6 5E-10
70
15)50
2.3E-I0
16M0
1 3EĢ0I
1 It 04
30
15550
4 5E-09
70
25550
J 6E-09
6 1E-09
2 4E*00
t 4E-0*
10
25550
7.1E-09
70
25550
2*8-09
J IE-00
2-8R*0)
3 0E-07
SO
2)550
I.7MI
70
255)0
6.2E-09
23E-00
2.26*00
5 2E-0#
ģ.ĢS-07
-------
Tabic D-l. Caacar Rl*k CalculaUou for Sttttncat Coalact Scnarlot
Sfmmt 3 (BM 4S to
n
(hMm) 1
U
uMm) s (ĢvĢat/yr) 1
ID
(n)
Ļ W
' (U)
AT (d)
1 L4DD -
LAUD
(ĻCfei)
LAOD
U|Ģllģk
sr
t'a&cer
RU
Odi
00$
260
10E-06
1
1 44
13
30
25550
11B-09
AMI
0.0)
50
1.0B-06
1
1 24
17
70
25550
6 2E-I0
9.4E-09
1.7E+0I
1 6E-07
Awc
cadi
9.12
200
1.06-06
1
1 41
13
30
255SO
1.5 E-06
AMI
9.12
50
1.0E-06
1
1 34
17
70
25550
1.0E-07
16E-06
ME+OO
2 4E-06
~di
2.50
200
I0M6
1
1 41
13
30
25550
4. IE-07
AMI
2.50
50
I0E-06
1
1 24
17
70
25550
2 9E-0S
4.4E-07
73B0I
3 2H-G7
CU4
3.00
200
1.0B4*
1
1 41
13
30
25550
4.9E-07
AMI
3.00
50
10E-06
1
1 24
17
70
25550
3-4B*0S
5 2E-07
7. JE*00
3 Ut-06
Betto(b|flw**w
CUi
3.90
200
1.0B-06
1
1 41
13
30
25550
6.3E-07
AMI
3.90
50
1.0B-06
1
1 24
17
70
25550
4 4E-0S
6IE-07
7.3E-0I
SOfc-07
BĢaao(k)flwxmdbĢM
Odd
3.40
200
1.0E4*
1
1 41
13
30
25550
5.5E-07
AMI
3.40
50
1.0B-06
1
1 24
17
70
25550
3.9E-C1
5 9E-07
7.3E-02
4 3E-0ģ
CSdi
220
200
1.0E-06
1
1 41
13
30
25550
3.6B-05
AMi
220
50
1.0B-06
1
1 24
17
70
25550
2.5E-06
3 SB-05
I.4E-02
5 4F.-07
DifeĢuJtģut*ncĢM
Ckali
6.50
200
1.0E-06
1
1 41
13
30
25550
l.lB-06
AMI
6.30
50
1.0B-06
1
1 24
17
70
25550
74E-01
II E-06
7.3E*00
8 3H-06
Mlm
CMi
0.02
200
1.0C-06
1
1 41
13
30
25550
2UE-09
AMI
0 02
50
1.0B-06
1
1 24
17
70
25550
1 9E-I0
3 0E-O9
l.6E*0|
4 7E-0R
Heftsekl* ifoad*
CUi
0.04
200
1.0E-06
1
1 41
13
30
25550
ME-09
AMt
aoĢ
50
l.QB-06
1
1 24
17
70
25550
4 6R-I0
7.0E-09
9-IH+00
6 M-.-0S
lnMo[ 1,2,3-Ģ4]p)rrĢM
C3di
2.60
200
10B-06
1 41
13
30
25550
4 2E-07
AMI
160
50
i.oe-06
l
1 24
17
70
25550
3 0E-0ģ
4.5E-07
7 3-L--01
* H-. U7
N*Mtioģ4-ģpnp)fluuM
CSdi
6.50
200
i.oe-06
1
1 41
13
30
25550
11 E-06
AMI
6.50
50
i.oŖ4t
1
1 34
17
70
25550
7.4E-0V
II E-06
7.0EĢ00
7 9U-06
TĢuircaa
Odi
49.57
200
1.0E46
1
1 41
13
30
25550
S. 1 E-06
AMI
49.57
50
1.0e-06
1
1 24
17
70
25550
5 7E-07
& 6E-O6
20E*00
1 iv.os
4.2tO*
iOM
-------
TUbbD-L CmmM
ir
c
i
All
CImW
litiflw
<*Ģ>
Ģ Ģ)
* ) -
0-M-*
-
Uf
km
02
0L1
AAA
oa
4500
02
01
Amm
Od<
12
2300
02
0.052
AM
>.12
4500
0l2
ton
a*
150
2500
02
01
AM
230
4500
02
01
c*u
100
2500
02
Ol
AM
5.00
4500
02
04
Oil
JJO
2500
02
04
AM
J.<0
4500
0.2
Ol
cm
M0
2500
02
04
AM
5.40
4500
02
Ol
CMi
230
2500
02
01
AM
230
4500
02
<11
Oil
(30
2500
02
Ol
AM
150
4500
02
Ol
DmMob
CM
0*2
2500
02
01
AM
0.02
4500
02
01
HifnHif niwli
CMfl
AM
2300
02
01
AM
OuM
4500
02
01
CMi
2-40
2500
02
01
AM
u*
4500
02
01
N-Hiliili k l )H|jhiiil
CMi
t*
2M0
02
01
AM
150
4500
02
01
TMiKSi
cm
4937
Z500
A2
CM
AM
4fJ7
4500
03
OM
cr
l.OB-Of
).0W*
10B-06
ICB-04
l.ĢM*
1.QB-0S
1.06-0*
1.0B-04
1JB4*
1.QB4W
l.Q&Of
I4B4*
1.IM
1.QB44
iMAi
IM
140-0*
1.OB40
far MfaMtt CoaUci 5cĢaarioĢ
Dwģ*l
E9
ģW
AT<4)
LADD
LU)P
W
Cuttr
xatffr) s
-------
Table D-L Cuccr Ittik CskulalloB# for SidlBMt Coitact ScnirtM
CT SirH: Khfcfcr hrtluial wtUMmmUģĢcwlf
Cfclwl
C
<ģ*) *
1M
(-*Ļ)
cr
s (hfttaO
fl
(mMm)
i tr
t (uMm) x (Ģ?Mt/yr) s
ID
(yr)
SW
/ (*)
AT(d)
i LADD
LADD
LADD
(*c4H)
CTftSU
V
C*accr
Rbk
AUu
daU
0.05
140
i.oe-o*
1
1 30
9
30
25550
2.7649
AMI
0.05
50
1.06-06
1
1 16
9
70
25550
2.26-10
2.9E49
1.76-^01
4 9F.-08
Anif
QM
9.12
140
1.0B46
1
1 50
9
30
25550
4.5E-07
AMI
9.12
50
1.0B-06
1
1 16
9
70
25550
3.7E4S
4.9647
1.5E+00
7.3E-07
Odd
150
140
10646
1
1 30
9
30
25550
1.26*07
AMI
150
50
1.0B46
1
1 16
9
70
25550
1 OE-Ot
1.3647
7.3641
9.76*0*
CMi
>.00
140
10B46
1
1 50
9
30
25550
1.56-07
AMI
3 00
50
IOE-06
I
1 16
9
70
25550
1 2E4S
1.6E47
7.36*00
I 2E-06
Odd
3 90
140
1.06-06
1
1 50
9
30
25550
1.96-07
AMI
3 90
50
ioe-06
1
1 16
9
70
25550
1.664*
2 IE47
7.36*01
1 5E-07
BpQcflhiniH
Odd
5.40
140
106-06
1
1 30
9
30
25550
1 7647
AMI
1.40
SO
i.oe-06
i
1 16
9
70
25S50
1.464$
1.664?
7.3E42
1 3E-0*
k<<3-EdiytkĢyO|^i1iii
Odd
230
140
1.06-06
1
1 50
9
30
25550
I.1E-05
AMI
220
50
1 0B-O6
I
1 16
9
70
25550
t.9647
I.2E45
1.4642
I 6E47
nj>witO|iiifOTM
Odd
6 50
140
1.0646
1
1 50
9
30
25550
3.2647
AMI
6.50
50
1.0646
1
1 16
9
70
25550
2.664S
3.5B-07
7.36*00
25E-06
DMldm
Odd
002
140
1.0E46
1
1 50
9
30
25550
46-10
AMI
0.02
50
1.0646
1
1 16
9
70
25550
6 86*11
9.IE-10
1.66*01
1 5E4*
Hģf nrMor f bo<>
Odd
0.04
140
1.06-06
1
1 30
9
30
25550
2 06-09
AMI
004
50
106-06
1
1 16
9
70
25550
1 66-10
2.1E-09
9.1EĢ00
1.96-08
hdĢfto{ 1 (2>3<wo di m fwpyluix
CUd
6.50
140
1.06-06
1
1 50
9
30
25550
3 2E47
AMt
6.50
50
1.06*06
1
1 16
9
70
25550
2 6E4S
3.5647
7.0E* 00
2 4P 0ft
Total PCS#
Odd
49.57
140
1.06-06
1
1 50
9
30
25550
2.4E46
AMI
49.57
50
1.06-06
1
1 16
9
70
25550
2.0E47
2 6E-06
2.06*00
5 36-06
11 of*
-------
TabkB-1.
sr
c
(ai^Vmi
Mmh2
AM
CImM
(ĻN)
Ģ *>
Ģ ) Ģ
AMI
AiU
ffW
2200
at
6.1
AMI
0l04
5500
fri
0.1
r,i,n
OM
9.12
2200
fti
40S2
AMI
9.12
ssoc
01
aoģ2
llĢM(l)rtĢHIII
ChU
lģ
2200
at
Oil
AMI
ISO
1500
ai
41
CMI
JjOO
2200
at
ai
AMI
yoo
ssoo
0.1
0.1
cm
S.90
2200
CI
41
AMI
5.90
SSOO
ai
ai
ģĻĻ nPli Ļ
OK
1.40
2200
01
41
AM
3.40
SSOO
41
41
W-Bfcjln Jill >*Ļ! Ļ'Ļ
(HI
230
2200
Oil
0.1
AMI
220
SSOO
01
0.1
Otfi
4S0
2200
Oil
41
AMI
iģ
SS09
ai
41
DmUo*
CMM
att
2200
fti
41
AMI
aot
SSOO
01
41
OM
0.04
2200
01
41
AMI
0.04
SSOO
01
ai
bta>fl,2,S-Ģ4ffiĢM
cut
1Ģ0
2200
Ai
41
AMI
140
SSOO
41
41
N-Hirm lijwpilMM
Qfll
iģ
2200
41
41
AMI
4.59
SSOO
41
41
TitfKSi
cm
44J7
2200
41
400
AMI
49.51
SS0Q
41
400
-m-
LQ844
LQB46
1.0644
I.0B4*
IJB-04
14644
tJfrOf
IJMI
IJMt
1.0B44
i.Ģ44
1.0e-06
MM*
iam*
1.CUI
1.0E46
]ĢĢ
l.flB-O*
10B44
1.0644
I.OM*
1.0B44
IJB44
1.06-Oi
Mtaoat Coatact Scoaarioo
dmial
IT
KB
ģW
ATģ
LADD
LADD
m
Ciwtr
(mtfrr) s
W
S L4DO -
(Ļ*t4
n*
*
iJ
25150
42B-I0
16
9
70
25550
I 56-10
5.7E-IO
J.4Ŗ+0|
1 ģE-0a
SO
9
SO
25550
2.SE44
10
9
70
25550
12E49
S.IE40
3.7E+O0
I.1E-07
so
9
SO
25550
1.9E44
14
9
70
25550
7.0B4S
14E-04
2.4B+00
62E-0ģ
so
9
SO
25550
2.3&Ot
14
9
70
25550
I.5B49
3 2B-04
2.4E+01
7.5E-0?
SO
SO
25550
J0E-O4
II
9
w
75550
J.1E-00
4.1E-00
2.4E*00
9 7E-08
so
9
so
29SSO
24E40
I*
9
70
25550
9.&eo9
3-46*00
2 4E-OI
hSH-09
SO
9
SO
25550
1.7640
10
9
70
25550
UM7
2.SB4*
7.4E-02
1 7E-07
SO
9
SO
25550
5.0Ŗ4t
10
9
70
25550
IUJI
49E44
Z4E+0I
I6E-06
so
SO
25550
I.JB-IO
10
9
70
2S550
4.se.n
l.tE-10
3.2E+01
S.7B40
so
9
M
25550
J1E-10
14
9
70
25550
I.IB-10
4.JE-10
l.JE+01
5 le-o*
30
9
30
25550
2.0&4I
U
9
70
23550
7.3B49
17E-04
14E+Q0
4SB-D4
SO
9
SO
25550
5.0B40
14
9
70
25550
1.4E40
4.9E40
tĢe+oi
I 9E-06
SO
9
SO
25550
ZSB-07
14
9
ģ
25550
44B-00
>.iE47
2.26*00
7.0K47
&5E-0*
12*10
-------
Tafcle D-L Cm car Bhk Calnlatioii for ScdlMil CoiUd Scdvioi
SĢ|ma<4(RMi5UU)
MI Bwrtu Bhfc fcr ImM^I hi-ttit
-------
TaMaD-L
ĻMĢ fciMrti! M* In ģĻĻĻ! r..MĢ wm ģĻĢĻĻĻģ. ĻĻ n nil
ft XT
CVmImI
Kģf t)w^Ĩ
cw
0lĢ7
2900
02
0.1
1.0&4K
AM
Of7
4500
02
01
IdUi
niifcu
Oil
OlOl
2900
02
Ol
i.oe-o*
AM
ooi
4S00
02
01
1M
OM
0.01
2900
02
01
1.08-4*
AM
OlOI
4900
02
Ol
i.oe-ot
cm
2.10
2900
02
Ol
AM
110
4500
03
Ol
K-NiMĢ44fNyytaMģ
OA*
110
2900
02
at
1.064*
AM
110
4900
02
Ol
1.06-04
TĢ* K*.
QH "
%S7
2900
03
0.06
106*4
AM
JJ7
4900
02
OM
106-04
Miami CaaUd Sctaariot
ussar
B7
ftW
ATģ
LA0f>
UOģ
m
Cum
(mtfyr) i
JtL
' <*)
t UDO
=
RU
40
15
SO
2)5)0
1.46-10
M
17
70
259)0
7.5E-1I
XIB40
S4E+0I
7.264)9
40
IS
30
255)0
i.oe-o?
34
17
70
25550
1.5640
I.6B47
3.7Ŗ*00
) 7E47
4f
15
50
255)0
16E-00
24
17
70
25SS0
4.76-00
I.5B47
2.4&ģ00
vie-07
40
IS
SO
25550
9.0E-00
24
17
70
25550
4.96-01
1.4B47
2.4E+01
sse-06
40
IS
SO
15550
ME*07
34
17
70
25550
6.2B4M
t.7E47
2.46*00
4.1E47
40
19
SO
25)50
1.16-07
14
17
70
25350
42B-00
I.7E-07
2.4E-01
4IE-0S
40
15
so
25550
12E-06
24
17
70
25550
4.564*
1.3B-05
7.4642
9.4B47
40
15
50
255)0
12E40
24
17
70
25550
1.S&0S
5.06-Ot
2.46+01
1 2E-06
41
15
SO
25550
2-7E-10
14
17
70
25550
1 56-10
4.16-10
5.26*01
I.JE44
40
IS
SO
2)550
roe-io
24
17
70
25550
116*10
S.lB-10
1.56+01
406-09
40
IS
50
25550
7 9B40
24
17
70
25550
4.seoo
1.26-07
2.46+00
2.9647
4S
IS
so
25550
1.2647
24
17
70
25550
6.4640
I.IE47
2lEtOl
5.0646
40
IS
SO
25550
B.0&4S
24
17
70
25550
4.9640
1-4647
226+00
3 IE-07
l.ltos
-------
Table D-l. Cuat Rltk Calcutettou for Sedincat Coatact Sccaarioa
CT Scuaitol Hafcr hMdH ifMaal. Inaltf
' -E533T
C
IK
cr
0
Ļ cr
ED
W
AT(d)
LADD
LADD
9
Caactr
Ctwkd
KitifUr
(ģ**> >
(mtto
(wMm)
i (hMw) (Ģrwt/yr) i
(yr>
/ (fc<)
Ļ LAUD -
(M|**4)''
Rbk
AMu
cm
0.00
140
106-06
1
1 30
9
30
25550
he-io
AMI
0.00
50
roe-**
1
1 16
9
70
255)0
I.5E-11
I9E-10
1.7EĢ0l
3.36-OV
Anc
Oil
140
140
1.0M*
1
1 30
9
30
25550
4.1B-07
AMI
140
so
i.oe-06
1
1 16
9
70
25550
34E-00
4.5B-07
I.5E + O0
6.7E-07
BĢUĢ(l)MlknMM
cadi
250
140
1.0B-06
1
1 30
9
30
25550
l.tE-07
AMI
ISO
SO
I.0E-O6
I
1 16
9
70
25550
9.3E4J9
I.2B-07
7.3E-01
9.0E08
BmzelifcyroM
cm
240
140
1.06-06
1
1 30
9
30
25550
1 2E-07
AMI
240
SO
1.0E-06
1
1 16
9
70
25550
9.7&49
1.3647
7.3EĢ 00
9.36-07
Odd
100
140
1.06-06
1
1 30
9
30
25530
l.Sfi-07
AMI
3.00
SO
l.OB-06
1
I 16
9
70
25550
I.2B-0S
1.6B47
7.3E-0I
1 2E.-07
Bw(k)bwnnaMM
cm
3.00
140
i.oe-06
1
1 30
9
30
25550
15P.-07
AMI
3 00
SO
1JC-06
J
1 16
9
70
25550
I2E-08
J.6E-07
7.3E-02
1 26-0*
kia(l.l!*yDmyl)fMuaĢ*
Oil
220
140
ioe-06
1
1 30
9
30
25550
I.IB-OS
AMI
220
SO
10E-O6
1
1 16
9
70
25550
B.9E-07
12EU05
I.4E42
1 6E-07
D>bĢu|aģurivaMM
Odd
0.S7
140
1.0E-06
1
1 30
9
30
25550
4.3E-0t
AMI
0.17
SO
1.06-06
1
1 16
9
70
25550
3.5E-09
46B48
7.3P.4O0
3 41-07
Mdm
cm
0.01
140
1.06-06
1
1 30
9
30
25550
3 5E-I0
AMI
0.01
SO
I.OE-06
1
1 16
9
70
25550
2.9B-I1
3.SB-I0
l.6EĢ0l
6 1E-0V
H^xUct ifoaii
Odd
0.01
140
1.0E-06
1
1 30
9
30
25550
2.7E-10
AMI
0.01
SO
1.0E-06
1
1 16
9
70
25550
2.2E-11
29B-I0
9IEģ00
2 6E-0V
U4Ģ*ģ{l,2,3-c4fryTĢw
Odd
2.10
140
1.06-06
I
1 30
9
30
25550
1 0E-07
AMI
M0
SO
1.06-06
I
1 16
9
70
25550
8 56-09
I.I E*07
7.JE-01
* 2K-08
N-Nitroio A -ft^n^ylamM
Odd
3.10
140
1.0&-06
1
1 30
9
30
25550
1 5E-07
AMI
3.10
SO
1.06-06
1
1 16
9
70
25550
I.2E-0S
1.7E-07
7.06*00
1 2E-06
TocrfKS*
Odd
yrr
140
t.06-06
J
1 30
9
30
255)0
2 06-07
AMI
s.r7
SO
1.06-06
1
1 16
9
70
25550
I.6B-08
2.1E-07
2 0fc*00
4.2E.01
ĢofM
-------
WhB-L Chm
CT
c {>'1
"ar qg & i1
WwĢtaģiiii>n>i
ON
OH
-MFC*
too
2_S0
IM
V46
tN
1.00
5.00
lot
5.01
220
220
QJ7
0.17
OlOI
0.01
aoi
Ml
2.10
xio
5-10
>.10
1W
117
1500
23Ģ0
MOO
2200
1500
2200
ssoo
2200
ssoo
800
ssoo
2200
SSOO
2200
SSOO
2200
SSOO
2200
SSOO
2200
SSOO
2200
SSOO
AM
c?
E (ĢMN
8 ftf
*1
IA&
0.1
1.0M6
*002
1.0&46
aosa
i.oe-M
04
i.oeot
OLI
I.0B4I
Oil
1.0B4*
at
l.0M(
0.1
1.0B46
ai
1.0&O6
ai
1.AM
ai
1.0B46
0.1
106*6
&i
1.0B46
0.1
ai
l.ģ0(
Oil
1-06-06
Oil
k.Ģ4t
0.1
l.Ģ4f
0.1
1.W46
0.1
1.0B-06
0.1
i.oe-ot
0.1
1.06-46
0.1
l.tt-06
ao6
l.Ģ*6
0.06
1M4*
MfaMt Coatact StMMrioo
DNĢll
KP
a>
IW
AT (4)
UOB
USD
Cuiir
(vMt/yr) *
' <*>
f UDD *
(Ģ***>
(Ģ*H>
IU
SO
9
if
25550
Z.6E-I1
16
9
70
15550
l.Ofi.11
S.9B-I1
ME+41
I3E-09
SO
9
SO
25550
2.IE-06
16
9
70
25550
7.6B-09
. 2.tŖ-0t
J.7E+00
I.0E-07
SO
9
SO
15550
I.SŖ~0t
16
9
70
25550
6.5E-W
2.4E-06
2.4E+00
5.76-06
SO
9
SO
25550
196-06
16
9
70
25550
6.SE-09
2.5B-06
24E-MJ1
6 0E-07
SO
9
SO
15550
1SE40
16
9
70
25550
15R-09
S.2B4I
24E-KW
7.5E-OH
SO
9
SO
25550
2.JE-06
16
9
70
255SO
ISB-09
3.2MO
2.4B4!
7.JE-09
SO
9
SO
25550
I.7&46
16
9
70
25550
6-2E-07
2.S&46
7.ĢE*2
I.7E-07
SO
9
SO
25550
6.7E-09
16
9
70
155SO
24EUM
9.2B49
2.4E+01
22E-07
SO
9
SO
25550
S5G.11
16
9
70
35550
20C.11
7 5B-1I
S.2E+0I
24B-09
SO
9
30
25550
4.28-11
16
9
70
25590
1.5EU1I
57E.II
l.JE+01
72E-IO
SO
9
SO
25550
l.6E4i
16
9
70
25550
59B-09
2.2e-Ģ
2.4E+00
5 2E-0#
SO
9
SO
2SSS0
2.4E4*
16
9
70
25550
1.7E-09
J.5&06
2tE*0l
9-2E-07
SO
9
SO
25550
ltE-00
16
9
70
2SSS0
6.7E49
2SE-06
2 26*00
56E-0*
U K-06
Korio
-------
Tabic D-2. Caactr Rttt Calculation for Surface Water CoiUct Sccaario*
SipMl 1 (RM 0 to
25550
2.5E-07
AMI
0.0021
0.03
3
24
17
70
25350
7.1E-08
32B-07
1.5E*00
4 9E-07
DUUim
Olid
0.0003
0.03
3
48
13
30
35550
3.16*08
AMI
aooo)
ao5
3
24
17
70
25550
8.7E-09
4 0E-OS
I.6E+0I
6.4E-07
Hapterifar
QM
aoooi
0.05
3
48
13
30
25350
l.3E*08
AMI
0.0001
ao5
3
24
17
70
25550
3.6E-09
1.6E-OS
4 5E*00
7.3B-GH
0i-ģ-ywyyUwtfJģ
CM
aom
0.03
3
48
13
SO
23350
2.2&06
AMI
0.0101
0.05
3
24
17
70
25550
6.2E-07
2.IE-06
7 0E+00
2.0E-OS
rĢNģcUerorkĢoi(rcr)
au
0.0)13
0.03
3
48
13
so
25550
4 7E-06
AMI
0.0)05
0.03
3
24
17
70
25550
13E-06
60E-06
I 2H-0I
72E-07
2.2fc-0.<
lUtlMiirtoi Ikkbr MIĢM Oirwl CmUc(
III Sarftt* Water. E*crĢter
l>Ģrmal
c
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CP
IT
EF
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ftW
AT(4)
LAbU
LAD1)
ģ*
Cticcr
CtentMl
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I
feĢ*2> i
(tģ/kr\ s
e
i
ģ
w
M
(vMt/vr)
. Or)
0*) I
LAUD -
* (wcAt-d) ' -
KUk
4,4'-DDT(py-)
Ori4
0.0002
6000
0.430
0001
3
48
13
30
25550
1.5E-06
AMI
0.0002
4500
0430
0001
3
24
17
70
25550
2.7E-07
I 7E-06
4 VI- -01
ML07
AlAu
OU
0.0001
6000
0002
0001
3
48
13
30
25550
5 1 P.09
AMI
0.0001
4500
0002
0.001
3
24
17
70
25550
5.7E'10
3 6E-09
3.4Eģ0l
I 2E-07
AlMMC
Qri*
0.0021
6000
0001
0001
3
48
13
30
25550
3.4E-0&
AMI
0.0021
4500
0.001
0.001
3
24
17
70
25550
6.4E-09
4 1E-0S
3 7EKX)
1 5K-07
DuUim
C*U
0.000)
6000
0016
0.001
3
48
13
30
25550
6.8E-08
AMI
0.000)
4500
0016
0.001
3
24
17
70
25550
I.3&08
8.0E0*
3 2Eģ01
2 6E-CK>
H^nUoc
cut
aoooi
6000
aoii
0.001
3
48
13
30
25550
I.9E-08
AMI
0.0001
4500
aou
0.001
3
24
17
70
25550
3.5E-09
2.3E-OS
6 3E+00
I 4E-07
H-Ntwo A-ģ-jwjy1i
GUI
0.0101
6000
0.00)
0.001
3
48
13
30
25550
8.4E-07
AMI
aoui
4500
aoo)
0.001
)
24
17
70
25550
1.6B-07
10E-O6
2.SE+0I
2 8E-05
NM>cUonphĢMl(K7)
GUI
aosts
6000
0650
0.001
3
48
13
30
25550
4.2E-04
AMI
003*3
4500
0650
0.001
3
24
17
70
25550
7.7E-05
49E04
1 2E-01
5 9H-05
C
tmtfU
CP
rr
KP
EZ>
BW
AT(d)
LADD
|"IW)
ģ (LfeĢM)
s fbr/ĢvMt) i
(vMtfrr) i
(rr)
/ f*) .
LADD
0430
0.001
6
)0
IS
30
25550
1.8&06
0430
aooi
6
60
17
70
25550
I4E-06
0002
0.001
6
SO
13
30
25550
3.8E-09
0002
0.001
6
60
17
70
25550
2.8E49
0001
0.001
6
SO
13
30
25550
4.3E*08
aooi
aooi
6
60
17
70
25550
S2E-08
0016
aooi
6
SO
IS
30
25550
8.5B-08
aoi6
aooi
6
60
17
70
25550
6.3E48
0011
aooi
6
)0
IS
so
25550
24E-08
aou
aooi
6
60
17
70
25550
1.IEJ58
000)
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6
SO
1)
SO
25350
IIE-06
000)
0.001
*
40
17
70
25550
f.tE-07
0650
0.001
6
SO
IS
SO
25550
5.2E-04
aoo
0.001
0
00
17
70
25550
3.9E^4
LADU
<***>
""TKnStT
i*
07
5 IH-05
I 11-04
I.7MM
4,4*-DDT
Hi!li II I
If Hi
am
aoooa
0.0003
0.0001
aoooi
0.0021
0.0031
aooas
0000}
aoooi
aoooio
OiOlftl
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0.0M5
tats
4500
4000
4500
6000
4500
MOO
4500
MOO
4500
<000
4500
6000
4500
V2E-06
6.7E-09
7.5E-08
1.5E-07
4.IE-08
I.8E-06
90C-04
4 9fc-0l
3 4EĢ0l
3 7Eģ00
3 2EĢ0l
6.3Eģ00
J 2K-0I
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ll|MtN
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so
15540
S.66-09
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1
16
9
70
25550
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4 4E-W
3.4B-01
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0.0001
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1
30
9
SO
25550
2.0&O9
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16
9
70
25550
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2,5E-09
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0L0Q21
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9
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25550
S.6&OS
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00021
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16
9
70
25550
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4.5C-0C
l.JE-'OO
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9
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25550
4SE-09
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9
70
25550
t.OE-09
5.5E49
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9
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25550
l.tE-09
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2.7&06
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0,05
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9
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25550
6.*e-o7
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0.01
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0
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aoos
aooi
1
so
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25550
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aooi
1
10
9
70
25550
4 5B-06
1.4E-07
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0.450
aooi
1
so
9
SO
25550
4.1MS
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aooi
1
16
9
70
25550
228-05
7.18-0$
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25550
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11000
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aooi
0
so
9
70
25550
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1.9B-06
4 9E-01
9 Sfc-07
AMM CMA
00001
$500
0002
aooi
4
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9
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25450
2.2E-09
AMI
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11000
aoos
aooi
4
so
9
70
25550
1.S&09
4.0eO9
5 4E+OI
I.4H-07
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O0QS1
$$00
aooi
aooi
4
so
9
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25S50
2.4840
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4
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9
70
25550
2.184*
4.5B-06
S.7Bģ00
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aou
aoot
4
to
9
30
25550
4.7E-00
AMI
1MB
11000
aou
aooi
4
so
9
70
25550
4.IB40
au-ot
5.2E+OI
2 BE -06
(Ml
0.0001
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aooi
4
so
9
SO
25550
1.SE-00
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MH1
11000
aou
aooi
4
so
9
70
25550
I.1B40
2.4^04
6.JE+00
I.5E-07
Mill
OlUM
$$00
aoos
aoot
4
so
so
9
so
70
AM
11000
aou
0.001
4
9
4)})Q
25550
5.TMT7
5 0M7
i.ie-06
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S.IH-05
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$$00
aoso
0.001
4
so
9
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24450
2-9C4M
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OlOMS
11000
aoso
0.001
4
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9
70
24550
2SE-04
54E-04
1IE-01
6 5H-05
1.0C-04
2o>Ģ
-------
Table D-2. Caacar Rhk Calculation tor Sarfacc Water Coated Scnailui
SafMt 2 (RM 3 J to <*S)
W hfCln tHaifcf WĢtģ. Iicmtw
lagMtb*
C
m
IT
bf
IW
AT(d)
LADD
LADD
Ctittr
Ģ
(LAr)
s (krtaml) >
(nabfrr)
* (n)
/
04
i LADD
-
(Ļsfod)
(mtJknI)' -
Rhk
4,4*-DDT (f #') W
AMI
0.0001
aoooi
aos
0.05
3
3
40
24
13
17
30
70
25550
25550
6.16-09
1 7E-09
7.SE-09
3-4E-01
2 7E-09
AlMa C3>U
aoooo
005
s
40
13
30
25550
J.1E-09
AMI
0.0000
0.05
s
24
17
70
25550
8 6E-I0
J.9E-09
1.7Eģ01
6 6E-0B
Amc CUI
Q.00SB
O.OS
3
a
13
30
25550
4.6E-07
AMI
OlOOM
0.05
J
24
17
70
25550
1.3&07
5.9E-07
I.SE+00
H9E-07
DMfca GNU
aoooi
0.OS
3
41
13
30
255SO
6.1B-09
AMI
aoooi
aos
J
24
t7
70
25550
I.7E-09
7.SE-09
I.6B+01
1 3E-07
lti|H H t QM
0.0000
aos
3
40
13
30
25550
3.1E-09
AMI
aoooo
aos
3
24
17
70
2SSS0
S.6E-10
3.9E-09
4.5EĢ00
1 BE-0&
H WIWM Ģ 1 fģ|ylii Odd
0.0050
aos
3
48
13
30
25550
6. IE-07
AMI
aOOSO
aos
3
24
17
70
25550
I.7E-07
7.SE-07
7 0E+00
5 5E-06
AMI
aom
aom
0.0S
aos
3
3
40
24
13
17
30
70
25550
25550
I.SB-06
4.3E-07
2 0E-06
I.2E-0I
2 3E-07
6.IM>6
ĻyilMMkitkkbrlMltaMDmilCiMKtwl
tfc laifta
Water. RktmIw
c
SA
w
CT
CT
or
D
BW
AT(d)
LADD
LADD
CMCtr
MU Ģ
(Ģ
t fcm/krl f
a*-M)
s fhrfevN
{.r-t/yO
I (JT)
' Pti *
LADD -
tm+m
Ģ 'Ļ -
Rbk
mmwtcp#.) cm
AMI
aoooi
MOO
0,430
aooi
3
40
13
30
25550
3.6E-07
aoooi
4500
0430
0.001
3
24
17
70
25550
6.6E-08
4 2E-07
4 9E-01
2 IE-07
A14m CMd
00000
mo
aoo2
0.001
3
a
13
30
25ģa
6 6E-I0
AMt
aoooo
4500
0.002
0.001
3
24
17
70
25550
I 2E-10
7.9E-10
3.4E*0I
2.7E-0&
Amm OM
aooso
M00
aooi
0.001
3
4t
13
30
25550
6 3B4S
AMI
aooso
4500
aooi
0.001
3
24
17
70
25550
1 2E-0S
75E-08
3 7EtOO
2.7E-07
DMOm Odd
aoooi
6000
aoi6
0.001
3
44
13
30
25550
1 3E-0t
AMI
aoooi
4500
aoi6
0.001
3
24
17
70
25550
21249
16E-0Ž
i.2Eģ0l
S 0E-07
HĢftwMor CUd
aoooo
MOO
0011
aooi
3
4S
13
30
25550
4 6E-09
AMI
aoooo
4500
aon
O.OOI
3
24
17
70
25550
ģ5E-I0
S.4E-09
6JEģ00
V4E0te
OaU
AMI
aooso
6000
aoos
0.001
3
41
13
30
25550
2 JE-07
aooso
4500
0003
aooi
3
24
17
70
2S550
4.3E-0Ž
2.SE-07
2ģEĢ0I
77E-06
AMI
aom
MOO
0650
0.001
3
4t
13
30
25550
I.3E-04
aom
4500
a6S0
0.001
3
24
17
70
25550
2 5E-05
1 6E-04
1 2tOI
J 91- 0-S
2.tE4)5
ĻMBSmw*ģ> ĻĢ* Ģ- l MiMil
3
j
1
f
1
1
DcrMĢI
C
SA
c?
KT
BP
n>
IW
AT(4>
LADD
LADD
Caaccr
MU i
s (Ģ/W1 *
s fkrfew
Ŗ 1
<".1*0
Ģ (rr)
/ (W) x
LADD
s ' -
Kbfc
U*-D0T (ģ#') QM
AMI
aoooi
MOO
0430
aooi
6
30
13
30
25550
4.JE-07
aoooi
4500
0430
0.001
6
60
17
70
25550
3 3E-07
7 #E-07
4 9E-01
3 8E-07
Al*ģ CUi
aoooo
MOO
0002
0.001
6
30
13
30
25550
S.3E-10
AMI
aoooo
4500
aooi
0.001
4
60
17
70
25550
6 2E-10
14E-09
>4E*01
4 9E 08
Am Oil
aooso
MOO
aooi
o.ooi
6
30
13
30
25550
79E-00
AMI
aoojo
4500
aooi
0.001
6
60
17
70
25550
5 9E*OS
1 4E-07
3 7Eģ00
5.0K-07
DUldm Odl
aoooi
6000
aoi6
0.001
6
30
13
30
25550
1.7E-0S
AMI
aoooi
4500
aoi6
aooi
6
60
17
70
25550
1 2E-0ģ
2 9E-CW
3 2E*0I
9.3E07
H^tockUr Odd
AMI
aoooo
MOO
aon
aooi
6
30
13
30
25550
5.7E-09
aoooo
4500
aoit
0.001
6
60
17
70
25550
4.JE-09
9.9E-09
6.3Eģ00
6 2K-0#
N Mi>i- * Ļ jWf jlim Odd
AMI
aooso
aooso
6000
4500
aoos
aoos
0.001
aooi
6
6
30
60
13
17
30
70
25550
25550
2.9E-07
2-2E-07
S.1E-07
2-8E'OI
1 4E-05
AMI
aom
MOO
0630
0.001
6
30
ģ
30
25550
1.7E-04
aom
4500
aĢso
aooi
6
60
17
70
25550
I3E-04
2.9E-04
1 2E-0I
3.5E-05
1JC45
*4$
-------
T*hW. CwMrRfckGrinlatfeMfcrSarfieiWalw Catted ScMiiiM
CTIiMliiWilģMlHhģĢlmll>lģģWģlģ.Ģiwini
c im B 0 B ģW AT (4) LAW LAUD W Cuctr
' <ģ** ' <Ģ*Ļģ) ' 00 I (H) ģ UM - (ģH) (<^1 <' ' km.
M'-oot (,ģĻ-) cm
AM
OMOI
aewi
US
US
1
1
30
I*
9
SO
70
2SSS0
2S5SO
ttt-10
2.06-10
M649
3 4B41
J. 7E-IQ
AIM OH
OiNN
MS
1
90
9
SO
25550
4.48-10
AMI
UNO
MS
1
1*
0
70
2SSS0
1.06-10
5.4B.IO
1.76+01
9.2649
AMi> CM*
1001
US
1
SO
9
SO
ZSSS0
4.76-00
AM
OJM
MS
1
u
f
70
25550
I.5B40
026-00
1.56+00
1.2647
nillii OM
OJOOl
*ĢS
1
so
f
SO
2SSS0
k.ifi-io
AM
M00I
aw
1
II
9
70
255)0
2.06-10
1.1649
I.6B+01
1.76-08
Qj|
yOOO
MS
1
90
9
so
25550
4.4B-10
AMI
QjMOO
MS
1
i*
9
70
25550
i.oe-io
5.4E-10
4.5E+00
2.4649
M Mill i ii i Ļ CMH
OJM
MS
1
so
9
30
2SSS0
ite-ot
AM
&00S0
US
1
1*
9
70
25550
2.0644
I.IE47
7.oe+oo
7.6647
MI2S
MS
1
so
9
SO
255S0
2.2B-07
AM
0.0125
aos
1
14
9
70
25550
s.oe-oĢ
2.7E47
1.2641
32608
9,4 §47
!
!
1
1
i
t
hrfMl
'tor,
luratar
C
OA
*
c?
KT
nr
m
Ļ W
*IW
UOO
LADD
m
Cuctr
MU ģ
ftģ3L
i.
(U*m*S\
I.
s iT-Vrr)
Ģ (wl /
(to .
IAM> -
(Ļrtc-tfl
^e-oarttf) cm
mni
SM
04N
U0I
1
SO
9
30
25550
4.2E-0I
AM
ONOl
1IM
UM
aģi
1
1*
9
70
25530
19R0O
6.1E-C4
4 9E-01
2 9EOH
AMat CMI
OOM
SM
am
M01
1
so
9
SO
25SSO
7.76-11
AM
0M0
UM
UN
0.001
1
10
9
70
25550
3.5E-I1
1.16-10
346Ģ01
3.8649
Amw OK
MOM
SM
ONI
0J01
1
so
9
SO
25550
7.4649
AM
UM
UM
ONI
0J0I
<
14
9
w
25550
3.4E-09
1.1640
3.7e+oo
3964*
IMto CUt
OMI
S9N
Ml*
am
1
30
9
30
25550
13649
AM
UNI
UM
Ml*
0401
1
14
9
70
25550
7.16-10
13649
3.2E+01
7264*
nifiiM r CM<
UM
MO
MU
OlNI
1
30
9
30
25550
s.se-io
AM
MM
UM
Mil
ONI
1
10
9
10
25550
2.4B-I0
7te-io
636*00
4.9E-09
cm
Ml
ftM
ONI
1
30
9
30
25550
27640
AM
UM
UM
OM
ONI
1
14
9
70
25550
1.26-00
4.0640
2.06+0!
1.1646
OOI25
SM
OM
ONI
1
30
9
30
25550
1.4645
AM
urn
1IM
OM
0-001
1
li
9
70
25550
7.2644
236-05
1.2641
2 *6-06
~.K*
crģwrt-Ģ*wi JiiitrimrmmCiafciil Ļģ
Mr,
Mar
P*raģl
c
*
CF
Br
MM
D
IW
ATM
LAPP
LA&D
m
CĢacĢr
CWtai
Mi -
,is3.
s
WW
(LkmA3\
Ģ IMmwO
Ģ i-mVrri
Ģ (yr> /
<*> Ģ
LA DO -
(+*4)
tmaMi
KMe
<_Ģ-DOT (,#Ļ-) OH
0JN1
SM
MSO
M01
<5
US
9
30
25550
1.4647
AM
mni
UM
0430
ONI
4J
263
9
70
25550
13647
2.96-07
4.964)
1.46-07
AM* OM
OlMO
SM
am
0001
43
263
30
25550
2.96-10
AM
QjOM
UM
0002
0401
43
HJ
9
70
25550
256-10
5.46-10
3. cm
OM*
SSN
MOI
ONI
43
303
9
30
25550
24640
AM
UM
I1M
ami
MO!
43
263
9
70
25550
2.4640
5.2640
3.76*00
1.9647
dmMok cm
UNI
MO
MM
ONI
43
203
9
30
25550
5.0649
AM
UNI
UM
Ml*
ONI
43
HJ
9
70
25550
5.0649
1 1640
3.16+01
3.5E-07
ģhĢiMii cm
MM
SSN
MJl
ONI
43
203
9
30
25550
2.0649
AM
MM
UM
Ull
OLNI
OlNI
43
Ģ3
9
70
25550
1.7649
3.7649
636+00
2.36-On
N-Hiģ.ll i II )H|j1 Mil cm
UM
SSN
OM
43
243
9
30
25550
1.0647
AM
UM
UM
aoos
ONI
43
24.)
9
70
25550
1.0640
1.9647
2.te+oi
53t-06
uus
SM
OM
0.001
43
243
9
30
25550
5.96-05
AM
Mltf
UM
(UM
0.001
43
26.3
9
70
25550
S.IE45
1.1E-64
t.26-01
131:45
l.9t-0<
441
-------
Table D-2. Caacar (Ulk Calcnlatiou for Siirtace Water Coatact Sccaariot
Safaeat 3 (IMtlto
ģW
AT (4)
LADD
LADD
sr
Cuiccr
Ckmtmt
R*cĢpUr
i
LAM)
-
(-**4)
=
Rbk
4,4'-DDT(f#.)
Odd
aoooi
aos
J
41
13
30
25550
6.1E49
AM
0.0001
0.0S
3
24
17
70
25550
I.7E-09
7.1E-09
)4e~oi
2.7E-09
Alfea
CM4
aOOOO
aos
3
41
13
30
25550
V1E-09
AMI
aoooo
0.05
1
24
17
70
25550
S.6E-I0
5.9E-09
1.7E+01
66E-0ģ
Aaic
cm
aooi2
0.05
J
41
13
10
25550
I4E-07
AMI
aooss
0.05
I
24
17
70
25550
I.JB-07
2.7E-07
1.5E-ģ00
4.IE-07
DuUam
CW4
aoooi
aos
5
4S
13
30
25350
6 IE-09
H*ttcl*oi
AMI
QM
10001
0.0000
aos
aos
3
s
24
41
17
13
70
30
25SSO
25550
I.7E-09
JlR-09
7.1E-09
1.6E+01
I iE-07
AMI
0.0000
aos
s
24
17
70
25SSO
1.6B-I0
J.9E-09
4.5E+00
IWģiw> A m puiyylim
CM*
aooģ
aos
3
41
13
30
23530
6.IB-07
AMI
aoaso
aos
3
24
17
70
25550
I.7E-07
7.SE47
7.0E+00
5.5E-06
PvtedOonflMMtCKr)
Odl
0.0125
aos
3
41
13
30
25SSO
I.5B-06
AMI
0.0125
aos
3
24
17
70
25550
4.3E-07
2.0E-06
1.2E-01
2 3E-07
6.3E-06
MKfcwiHwttkhfUi
ItatdDvaiiCMtMtft
4k SmfmlValir, bemtir
c
IA
*
cr
Bf
KT
KD
Ļ w
ATtd)
LADD
LADD
9
Cucif
oĢw
l-WUf
imtfU i
s
few/fcr) s
Ģ
(br/imO
(iv+mUyr)
Ļ fģr> /
ģ
IjADP -
I fMlAfrtft ' -
Rbfc
4A-ODT^.)
cm
aoooi
6S0Q
a430
0.001
a
13
30
2S550
3.6E-07
AMI
0.0001
4500
CL4J0
0 001
24
1?
70
25150
6 6E-04
4.2?. 4)1
4 ^E-0J
2 lfc.07.
Alfeģ
cm
&0000
6100
aoo:
ooo i
41
U
30
25550
6.6E-J0
AMI
a oooo
4500
aoos
aooi
3
24
17
TO
25550
I2E-10
7.9E-I0
>4E+0I
2 7K-0S
Oil r
CUI
0.0013
6000
aooi
aooi
3
41
13
30
25550
I 9E-0I
AMI
0.0012
4500
aooi
aooi
3
24
17
70
25550
3.5&09
2.3E-W
) 7E-Ģ00
(J 3E-im
Duldm
Oil
0.0001
6*00
0,016
0.001
3
40
13
30
25550
I.3E-0S
AMI
0.0001
4500
0.016
aooi
3
24
17
70
25550
2.5E-09
16E-08
y 2EĢ0!
5 QF-07
cm
&0000
6000
C.CII
aooi
3
44
13
30
233S0
46E-09
AMI
aoooŠ
4500
(L01J
aooi
3
24
17
70
25550
1.5B-10
1.4E-09
6}Ŗ<00
5.4E-0Ģ
Ckii
00054)
6000
aoo3
aooi
3
41
13
30
25550
2.3E-07
AMI
0.0050
4500
0-005
aooi
3
24
n
70
25550
45E-08
JSE-01
21EĢ0I
7.7H-06
cm
0.0115
6000
0.650
0.001
41
13
30
25550
1.5E-M
AMI
0.0115
4500
0.6S0
aooi
3
24
1?
70
25550
2.5E-05
I.6E-04
I2E-01
1 9E05
ĻME UmmUx Rtt fcr Am
dlMfcUton
mICmMv!
Ik tvbc* Water. ftMlar
Dtrmtl
c
U
CF
KT
KP
xz>
IW
AT(J>
LADD
LADD
&
Cum
C^loj
lirwtif
Ml) Ģ
s
f<*Ar) Ļ
r
(brfratl)
Ģ
O
I (rO /
M -
LADD -
Ģ Ļ' -
RUi
4^-DDT(F#'-)
Oil
10001
<000
atto
aooi
<
30
13
30
25150
4.5E-07
AMI
0.0001
4500
aĢģ
0-001
6
60
17
TO
25550
3.JE-07
7.*E-07
49E-01
3.8F-07
Altoa
cm
OLOfiOO
6000
aooz
aooi
Ģ
30
13
30
25150
I.3B-10
AMI
0.0000
4500
aooi
aooi
6
60
17
70
25550
6 2E-I0
1.4E-09
3.4E+0J
4 9t-0Ģ
Ann
CMi
10012
6000
aooi
aooi
6
30
13
30
25150
2 4E-W
AMI
0.0012
4500
aooi
aooi
6
60
17
70
25550
IKE-Ot
4.2Ŗ-01
3 7E-ģ00
1 St 07
JMfea
aid
0.0001
000
aoi*
0.001
6
30
13
30
25550
L7E-01
AMI
0.0001
4500
aoi6
aooi
.6
60
17
70
25550
1 26-01
2 9E-01
3.2Eģ01
9 3E-0?
HgphrMir
00
0650
aooi
6
30
13
30
25550
1 7E-M
AMI
0125
4300
ftUO
aooi
6
60
IT
ģ
25550
I-3B-04
2 9Z-04
I2E-0I
J.SI^-05
1IS-09
Ml
-------
Tablt M. ClMirmfMnlillmfcfiģhciW<*Coilid Srirfcn
CTIwMrtNttfcfcrfcMlfcrtrilMwiwrfiwfcxWilw.lMmXi
c
m
BT
0
B
tw
ATĢ
LAM
LAģP
1twrt
ģ
Cuctr
Chm lmģ >ĻĻĻ>!Ģ MM i
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40
13
30
25550
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3
24
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4.9E-OI
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2 3E-08
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8 3E-05
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70
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70
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4.3B-08
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6100
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a
13
30
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24
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70
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1 6E-04
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6
6
60
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70
30
25550
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60
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70
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60
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70
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30
13
30
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60
17
70
25550
I.2E-00
2.9E-08
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9.3E-07
add
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0
30
13
30
25550
S.7E-09
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60
17
70
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4.2E-09
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25550
25550
25550
0.06ģ(0
2.0B-I0
4.4Eģ10
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4.6&09
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2.5E-04
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1.6E+01
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40050
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7.6E-07
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405
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2.2&07
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4450
4008
4003
4001
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9
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70
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70
25550
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7.7E-II
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2.2E-09
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9
70
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5500
4014
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1
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9
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1.5E-09
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70
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7.1E-10
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5 3E-I0
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2.9E-07
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5.5E-07
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7.0E-Q7
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3.5E-0I
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4.9E-07
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4.68-07
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2.08-06
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1.5E-06
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2.7E-07
5.4E-07
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1.7B-06
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1.68-06
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1.48-06
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25550
7.96-05
I.6B-04
2 OE+OO
5 1E-04
OM
OOtt
11 1
aooi
SOS 9
SO
25550
6.0B-00
AMI
0JO5
7J 1
aooi
SOS 9
70
25550
6 6&0C
IJE-07
3 5E-01
4.6E-0*
2 an
-------
Table D-3. Cmcct Rbk Caknlatioi* for PUk Coaramptioa Sceaarioi
SapMl 2 (BM JJ la<4J)
llgtonihMkCmrttmtintk
lafMlei
AT (4)
UDO
LADD
a>
Cuctr
OmbImI
ftwiftor
C(MflĢD
I IftW x I(nU
m) x CF(k*|)
x IF (Ayr) i KO(jrr)
/ BW(kf) x
LADD -
(Ģtfe4>
(M|/krd>
(Ļfrfcfrd)
4t4'-DDD(r#*->
Odd
0.046
It 1
0.001
MS IS
30
25550
5 lE-06
AMI
0 046
41 1
0.001
565 17
70
25550
6 5B-06
12E-05
24E-01
2 tE-06
4(4**[>DB (?#'-)
cm
0.106
It 1
0.001
36$ IS
30
2)350
I.2E-05
AMI
0.106
41 1
0.001
565 17
70
23550
1.5B-05
2.7E-05
3.4E-0I
9.IE-06
4,4*.DDT (p#*-)
Qid
0.070
It 1
0.001
565 IS
30
2SSS0
7.1B-06
AMI
0.070
41 1
0.001
565 17
70
25550
ioe.05
1 ģE-G5
3.4E-01
6 1E06
Altai
Odd
0.003
It 1
0.001
565 13
30
25550
5.5B-07
AM
0.005
41 1
0.001
365 17
70
25550
7.0E-07
l.SE-06
1.7E+01
2.IK-05
Ļ1yfca ninrit<
cm
aoos
Jt 1
0.001
365 13
30
35550
5.5E-07
AMI
0.005
41 1
0.001
365 17
70
25550
7.0E-07
1 3E-06
3.5E-01
4 4E-07
Altaic
Odd
0.045
It 1
0.001
365 13
30
25550
50B-06
AMI
0.045
41 1
0.001
365 17
70
25550
6.3E.06
I.1E-05
I.SE+00
1 7E-05
OMm
cm
0.065
It 1
0.001
365 13
30
25550
7.2E-06
AMI
0.065
41 1
0.001
365 17
70
25550
9.JE-06
I 6E-05
3.5E-01
5.7E-06
DmUor
Odd
0005
It 1
0.001
365 13
30
25550
5.7B.07
AMI
0.005
41 1
o.ooi
365 17
70
25550
7.3E-07
IJB-06
l.6EĢ0l
2 1E-05
lam-dlarlM
add
0 065
It 1
0.001
365 13
30
25550
7.2E.06
AMt
0.06S
41 1
0.001
365 17
70
25550
9.2B>06
1 6E-0S
J 5E-0I
5.7E-06
N-Njtfp a m f*9fyimuM
cm
0.034
It 1
0.001
365 13
30
25550
3 tR-06
AMt
0.0)4
41 1
0.001
365 17
70
25550
4 8E-06
6 6E06
7.0E+00
6.0E-05
add
59.500
It 1
0.001
365 13
30
25550
6.6E-03
AMI
59.500
41 1
0.001
365 17
70
25550
V.5E-03
1 SE-02
I.2E-01
l.ģE-03
TttriKSa
cm
2.W7
It 1
0.001
365 13
30
25550
3 1E-04
AMI
2.S27
41 1
0.001
365 17
70
25550
4.0&04
7.2E-04
2 0E+00
1.4E-03
bM-NoMdOor
add
0.005
It 1
0.001
365 13
30
25550
5.5E-07
AMI
0.005
41 1
0.001
365 17
70
25550
7.0E-07
I 3E-06
3.5E-OI
4 4E-07
J.4E-01
ScTC
-------
Tabic D-3. CmcĢ Kkk CaMadni for FU Ceilpttoa Snaarioi
Ļ m w i
M .
% ģ<)n)
/ VW(kg) t
AT (J)
LAM -
UDO
<Ļ***>
US0
*Ļ***>
UfflH
at
CĢ<Ģr
fctafc
*,4'-ODO (,*'-)
OM
104*
ii l
0.001
MS 9
50
25550
4.0W7
AMI
iOtf
73 1
aooi
SOS *
70
25550
6.1 M7
12E-06
!4Mt
2.9E-07
v-dob (,#Ļ-)
cm
AIM
11 1
aooi
MS 0
30
25550
J.4B-06
am*
ftlO*
93 1
0.001
MS 9
70
25550
1.48-06
2.SB-M
5.4B-0I
96M7
4^-DDrr (ģģ-)
cm
OlOTO
11 1
0.001
MS 9
50
25550
9.5B-07
AMI
1010
73 I
0.001
MS ģ
70
25550
9.4B-07
1.9E-06
14E-0I
6.4E-07
AUm
cm
0.005
LI 1
aooi
MS 9
50
25550
4.6B-0I
AM
0.005
73 1
0001
MS 9
70
25550
6.6&OC
IJE-0?
1.7E+0J
2.2E-06
iiifc. rMiiģĢii
cut
0.905
11 1
0.00!
MS 0
50
25550
6.6B-00
AMI
0.005
73 1
0.001
MS 0
70
25550
4.68-04
I.JE-07
5.5E-0I
4.6E-0*
*Mģ
cm
0,045
11 1
0.001
MS 0
ģ
255JO
S.9B-07
AMI
0.045
?3 1
aoot
MS ģ
70
25550
40B-07
1.26-00
i.se+oo
I.0P-O6
OMa*
cm
oioos
11 1
aooi
MS 9
50
25550
16B-07
A**
OiOOS
73 1
0.001
MS *
70
25550
17B-07
I.7E4*
5.5&OI
6.0E-07
KilK
cmj
(LOOS
11 1
0.001
MS 9
50
25550
6.tB4t
AMI
0.005
73 1
0.001
MS 9
70
25550
*9640
MB47
>.6Eģ0I
2 JE-06
QM
Oi 0*5
S.J 1
0.001
MS 9
50
25550
16E-07
AMI
0.0*5
73 1
0.00]
MS 9
70
25550
1TB-07
I.7B-00
V5E-0I
4 0E-07
W HlMM 1 Ļ
oai
0.054
11 1
aooi
MS 9
50
25550
458-07
AMI
0.054
7J 1
0.001
M5 9
70
25550
4.66-07
9.1E-07
7.oeĢoo
ME-06
OH
so.soo
11 1
aoot
MS 9
50
25550
7.9B44
AMI
50.50*
73 1
aooi
MS 9
70
25550
ioe-04
I.6E-03
I.2E4I
1.9E-04
TwtKSa
cm
icn
11 I
aooi
MS 9
50
25550
i.te-os
ami
rtzr
73 1
aooi
MS 9
70
25550
3.IB-0S
7.SM5
2.0E*00
) 5E-04
W HwiiMif
Oil
aoos
11 1
0.001
SOS 9
50
25550
6.6B-00
ami
0.005
73 1
0001
SOS 9
70
25550
*.<& 00
I3M7
5.5&OI
4.6B-00
4o(l
-------
TahU D-3. Caicar Rkk CmkuifttioBS for Flak Couamptioa Sģmi
-------
TofcU D-J. Cģcor MkkCtknlxkmi tor fkk Cfm+tom Stomioo
irflģ
OmiM
ln^Nr
< ĢĻ<Ģ
Mm) i CV(hrt
i Kr(4*Ģ) s Eftfer)
/ BWM i
AT<4)
LAM -
LADD
(>*M>
LADD
IMmBm
m
(nM"'
CMctr
4,Ģ--DDDfry-)
Cktf
aoĢ
11
1 0401
SOS 9
SO
2SSS0
6.96-07
AMI
0.032
71
1 0.001
345 9
70
25550
TOE-07
1.46-06
2.46-01
3.3647
M*.DOB(py*)
cut
am
11
I 0.001
MS 9
SO
25550
1.16-06
A**
0.001
7.S
1 01001
SOS 9
70
25550
MB46
2 2E-06
5.46-01
7.3647
4^-DOT(ry<)
cm
aoti
11
1 0.001
90$ 9
SO
25550
5.46-07
A**
0.041
71
i aooi
54* 9
70
25550
5.56-07
t.lE-06
5-46-01
5.7647
AMw
ON
aou
11
1 0401
SOS 9
SO
25550
i-swn
A**
0612
71
i aooi
SOS 9
70
25550
1.66-07
5.1647
1.76+01
5.56-06
#ģQMn
am
aooi
11
l aooi
MS 9
90
25550
7.46-00
AMI
aoot
71
i aooi
SOS 9
70
25550
7.SB-00
1.5&07
5.5641
526-08
Amm
OH
0Mt
11
i aooi
505 9
50
25550
S.6847
AMI
M97
7J
i aooi
SOS 9
70
255S0
S.6&07
7.2E-07
1.56+00
1.16-06
fllnliii
Oil
ft IIJ
1!
l aooi
SOS 9
SO
25550
2.18-06
AMI
Mil
71
i aooi
SOS 9
70
25550
2.CE-06
5.46-06
156-01
2-06-06
DmMok
QM
aoos
11
i aooi
SOS 9
SO
25550
6.56-00
AMI
0.00S
71
1 0.001
SOS *
70
255SO
6.66-00
1.3647
J.66+01
2)6-06
Oil
0-157
11
i aooi
SOS 9
SO
25550
2.16*06
A**
0.IS7
71
i aooi
SOS 9
70
*5550
21&06
4.2646
5.5641
1-56-06
CUi
0.0)4
11
t aOH
SOS 9
SO
25550
4 5B-0?
A**
0.054
71
i aooi
SOS 9
70
25550
4.6647
9.tE4T
7.06+00
0.46-06
CM!
so.soo
11
i aooi
SOS 9
SO
25550
7.96-04
AMI
59300
71
i aooi
SOS 9
70
25SM
10B-O4
1.6E-05
1.2E-01
1.9E-04
tĢm rcaģ
cm
5J0S
li
i aooi
SOS 9
SO
25550
7.7B-05
AMI
IMS
7J
i aooi
SOS 9
70
25550
7.S6-05
1.56*04
2.oe+oo
3 16-04
nay Hmifcln
OH
11
i aooi
SOS 9
SO
25550
6.56-00
AAA
aoos
7J
t aooi
SOS 9
70
25SSO
6.6&00
I.J647
jse-oi
4.6E40
OtfO
-------
Table 0-3. Caactr RJfk Calcalattoai for Fbh CoifUiaptioB Sccaario*
Sift 4 (RM ti to U)
IMIl-iilKMiiliCiln itll*
ClllHll
RtcipUr
C(.aftti
i n (1/4) il(nliM) x CT(V|f|) 1
K9(4fft) Ģ U>(n) / iW(kc) x
AT(d)
LADD
LADD
LADD
(Mite*)
9
Cucir
Rkk
4.4--DDD fry.)
CM
0.091
11
0.001
363 1
30
25550
IOB-05
AM
0.091
41
0.001
36$ t
70
25550
ME-05
2 3E-05
2 4E-0I
5 6E-06
4,4-DDE (p#'-)
CMi
0.151
It
0.001
363 1
30
25550
I5E-05
AMl
0.131
41
0.001
36$ I
70
25550
1 9E-05
V3E-05
3.4E-OI
I IE-05
4,4'DDT (ft*-)
cm
0.201
IB
0.001
363 1
30
25550
22B-05
AM
0.201
41
0.001
36$ 1
70
25550
2.96*0$
5 IE-05
3 4E-OI
1 7H-05
AUb*
OmU
0.00$
It
0.001
36$ 1
30
25550
5.5E-07
AMI
0005
41
0.001
36$ 1
70
25550
7.0B-07
I 3E-06
1 7E+01
2. IE-05
elffce-CMotdw
cm
0.081
It
0.001
363 1
30
25550
3.4B-06
AMI
0.031
41
0.001
36$ 1
70
2$$$0
4.4B-06
7 BB-06
3 5E-01
2.7E-06
Ann
CMi
0.021
It
0.001
36$ 1
30
25550
3.16.06
A4ak
0.02S
41
0.001
36$ 1
70
25530
4 0E-O6
7.1E-06
I 5E+00
I IE-05
CkkcteM
CM*
0.076
It
0.001
36$ 1
30
25550
8-5E-06
AM
0.076
41
0.001
36$ 1
70
25550
1. IE-05
1.9E-05
3 5K-01
6 &E-06
Di*faģ
Odd
0.034
It
0.001
36$ 1
30
2$$$0
3.7E-D6
AM
0.054
41
0.001
36$ 1
70
25550
4tB-06
ģ.5E06
16E+0I
1 4E-04
|muuOIĢ4om
cm
0.033
It
0.001
36$ 1
30
25550
3.9E-06
AM
0.03$
41
0.001
36$ 1
70
25550
JOE-06
8 9E-06
3 56-01
3 IE-06
N-Htww t a )wyyliti
CkdJ
0.034
It
0.001
36$ 1
30
25550
3 tE-06
AM
0.034
41
0.001
36$ 1
70
25550
4&E-06
* 6E-06
7.0E+00
60E-05
PĢMKUoropkĢMl(P<7)
CM4
59.300
It
0.001
36$ 1
30
25550
6.6E-03
AM
59.300
41
0.001
36$ 1
70
25550
S.5B-03
I.5E-02
1 2E-0I
1 8E-03
TotdPCB*
cm
192S
11
0.001
36$ 1
30
25550
3.3&04
AM
192t
41
0.001
36$ 1
70
25$$0
4.2&04
7.4E-04
2 0Eģ00
I 5E-03
MM>NoMckior
CUI
0.011
11
0.001
36$ 1
30
25550
I.2E46
AM
0.011
41
0.001
36$ 1
70
25S30
I.5B-06
2.7E4>6
3 5E-01
9 JE-07
71*
-------
TiWtW. CwBtt CliwtafcM fat m SttMiki
CTIwrtw jfcfcfcr i*ģ rfftt
oĢm
CM*
* AM *(ĻĻ
i n<Ģ*i) i ntr)
/ BWfe) Ģ
AT{4)
LAM -
UM>
(Ļ*ģ<>
LADO
<*+*<)
Ģ
4*1AH)"
Cum
U*
V-OOO <*#Ļ-)
OM
Uģ!
11
Ml
MS 9
SO
135*0
1.3B4K
AM
0.0*1
73
OlOOI
MS
70
2SSS0
1.2B-06
2.46-06
2.4B-01
5.0647
M'-OOBM-)
CMi
0.1)1
11
aooi
MS 9
M
2SSS0
1.7B46
AMI
0.1)1
73
aooi
MS 9
70
25550
IJM
S.5646
14B41
I.2E46
V-WtW-)
OM
OM1
11
OlOOI
MS 9
SO
25550
Z7M
AMI
OKI
73
OlOOI
MS 9
70
25550
17M
5.4E-06
14641
1.0E46
AIM*
OM
aoos
J.I
4001
MS 9
SO
2SSS0
&t&Ot
AMI
aoos
73
OlOOI
MS 9
>0
25550
*ĢB-0t
13647
1.76*01
2.2E-06
Oil
0091
11
aooi
MS 9
M
25550
4.1B-07
AMI
Ml
73
aooi
MS 9
70
25550
4IB-07
0.2647
ise-oi
2.9E47
Abmi
CMi
MM
>.1
0Mt
MS 9
M
2)550
17847
AMI
un
73
0^001
MS ~
70
25550
3.0847
7.5E-07
1.5E+00
IIE-06
ninUi
am
007*
11
OlOOI
SOS 9
M
2SSS0
1.064*
AMI
OOH
73
aooi
MS t
70
25550
1.06-06
2.06-06
15641
7.1E47
OMMi
OM
10M
11
aooi
MS *
M
25550
4.56-07
AMI
OJM
73
0401
MS *
70
25550
4.SB-07
96-07
1.6B+0I
1 46-05
cm
0.0)5
11
0.001
MS 9
ģ
25550
4.7647
AMI
0.QSS
73
0.001
MS 0
70
25550
4.78*07
936-07
156-01
J.IE-07
M fllUM i > pwyjIwH
CMi
OlOM
11
aooi
MS 9
SO
2SSS0
4.SB47
AMI
OlOM
73
aooi
MS 9
70
25550
4 4647
9.16-07
70S* 00
6.4646
OM
S9J00
1)
aooi
MS 9
30
25550
7 98-04
AMI
MM
73
aooi
MS 9
70
25550
106-04
i.oe-os
1.2B-01
I.9E-04
MKIi
OM
2JM
11
aooi
MS 9
M
25510
19B4S
AM
tm
73
aooi
MS 9
70
25550
19B4S
746-05
2.0E+00
1.6E-04
kaMnailic
CMi
Mil
11
aooi
MS 9
M
25550
1.46-07
AM
Mil
7J
aooi
MS 9
70
25550
1.46-07
2.1647
35E41
906-08
)JM4
Idl
-------
TibklM. NoaeMMr Hazard Cakvbtfoii tor Sftrffwf t CoiUct Sceurioi
Scfmmt 1 (RM 0 to OJ)
ImmmfiMkol fcr A4ĢK
c
IB
cr
(1
ir
O
IW
AT (4)
ADD
BID
NoR-CĢ*(*r
CkĢM
a
(-Iff
V
(Mltei) t
(iģN
I
(*
ģĢyr)
t
(hĢ)
s
ADD
f
(Ļ**4
Huatd
JOfc*
0.020
lo
1.06-06
1
I
24
17
*6
6205
ME-10
3.0B4ģ5
3 IE-05
AMM
9.4
50
1.06-06
1
i?
70
<205
4.4E~07
3.06-04
1 5E-03
kua-e&ioģyt)fMHiM
2.L
50
i.oe-06
I
17
70
6205
9.964)1
2.0642
5.0E-O6
IMUm
0.099
50
I.OB-06
1
I
11
70
6205
1-IŖr09
5.0B-05
5.7E-05
llf ģcwlģ
0.025
50
I.0B46
1
l
17
70
6205
1.26-09
1 364)5
9.0E-05
FC8 Aivckr 1016
0.017
50
1.0B4M
I
i
17
70
6205
6-IE-10
7.0E4B
I 2E-Q5
fCS Arockr 1254
0.019
50
1.064*
1
i
24
17
70
6205
9 1E-I0
2.0E45
4 6E-05
TWbM
6.2
50
1.0E4H
1
i
24
17
70
6205
2.9E-07
6.7B-05
4 iK-OJ
C.0C-0.1
IMIfciiirtit Wnmw M
inrilirla
ĢUm
iblDmlCMlKtiMSĢ4kiĢtbrAJĢkl(erMtor
C
u
AP
AOS
c?
IF
ID
KW
ATM
ADD
NĢfr-Caģ(tr
OiIwl
<Ļ!*>
i
(cĢ'Vinat)
i
(Ļ(^Ļ*2) i
(uMw| i
I
W
W
i
ADD
Ļ UuMd
JUina
0.020
4500
02
0.1
l.QE-06
24
17
70
6205
I 7E-09
1-5645
1 1R-04
AlMM
9.4
4500
02
0.052
1.0E-06
24
17
70
6205
2 SE4>7
1 2604
2-IH-03
W(2-e&yDhMM>pWMUli
21
4500
02
0.1
1.Q606
24
17
70
620 S
1 SE-07
5.HE-03
4.71-.05
0.019
4500
02
0 I
I.0B4M
24
17
70
6205
5.36419
2.5E45
1 3H-04
H*fUddoc yo<Ģ
0.025
4500
02
0 1
1.0646
24
17
70
6205
2 IE-09
9 4E-06
2Bb-CW
KBAimIov 1016
0.017
4500
02
0.06
1.0606
24
17
70
6205
6UE-10
6-3E-05
J.4H-05
KB ArodĢr 1234
0-019
4500
02
0.06
1-08-06
24
17
70
6205
9-912-10
1.664)5
5 51-05
TImBm
4.2
4500
02
0.01
1 QE-06
24
17
70
6105
5 2E-0H
I 0E 05
5.21--01
7.6KO*
KMSĢnnrĢit NMcucwlaw^ ferledieeti hraibt ĢT8i
at for ChUd RicmUr
C
IK
cr
n
Ļ
IF
ED
IW
AT(d)
ADD
RfD
NaĢ.Cna(cr
Cfewkkl
(Ģ*>
Ļ
i
W* D
(UlllMa) X
(wMm)
I
(w
vmVjw)
(yr>
(kft)
t
ADD
lltard
AMn
0.020
200
1.064#
1
1
a
\i
30
4745
J SE4*
50E-05
5 Kl CM
AMM
9.4
200
J 0646
1
I
46
is
30
474$
8 1E-06
3 0E4M
2 HL-G7
11
200
1 06416
1
1
46
15
30
4745
1 *E-06
20E42
9 21--OS
DUUm
0.019
200
1.06-06
1
1
41
15
30
4745
3 4E4ģ
5 OE-05
6*bW
(kpMUer^Mi*
0.025
200
J 06-06
J
J
41
13
30
4743
22E4W
I.JE4J
1 71- -0<
KB Anckr 101*
0.017
200
1.06-06
1
1
44
13
30
4745
ist-oe
7 0E-0S
2 21--04
KB Aioctar 1154
0.019
200
I.OE-Oi
1
1
46
13
30
4745
I.7F-06
2 QE-05
S SI-:.04
42
200
1.064*
J
46
13
50
4745
5.4B4M
67E45
6 fK-02
llt.01
RMKlHHflK Nmcuw R
Ļarlbrb
eMw
Ul D*mal Cmtm
dĢ
RfeMtaiatfwC
kU4 RitrwUr
C
14
XT
AM
CF
Er
ID
IW
AT (6)
ADD
tn>(ģdj)
Not-('MĢr
(1WI
k
(a**2fe*Ģa<)
s
(ĢĢ/Ģ *2) 1
(uMm^ k
(**Ļ>
t
<ģ
-l/yr)
s
(y*)
0>O
t
ADD
(ĻC/kc-tf)
(Ģ*ģ*>
Ļ lltutd
AJAm
0.020
2900
02
01
1.08-06
46
M
JO
474$
4.0fc4ģ
f.JE45
2 7E-04
A-wit
9.4
2500
02
0.052
1.06-66
46
13
50
4745
6.1E-07
1 2E-04
4 9H-0J
11
2300
02
0.1
1.0E-06
46
13
50
4745
4.3E4>7
5.6605
1 1L-04
DmUw
0.099
2300
0.2
at
i.oeo6
46
13
10
4745
7.96-09
2 56-05
3 IE 04
HiyfrrMnr
(L025
2300
02
01
1.0E-06
46
13
50
4745
5.0E-O9
94E-06
5 4E-04
KBAMkrlOH
0.017
2300
02
0.06
10E-06
46
13
30
4WS
2. IE-09
63&05
S JE-0}
K8 Aiedar 1254
0.0 J 9
2500
02
0.06
t.OB-06
46
Ŗ5
30
4745
2-4E4ģ
1.6E4J5
1 3E-04
TUb*
it
2M0
02
001
1-0&06
46
15
* 50
4745
1 2F4>7
1 06-05
1 2E-02
l.ģt-02
t*4
-------
TabbD-4. Mt n 1 ara1ģrn1 r
CTImmHk NiMiMrl
MftrMi
wMkMlNrfli
ĻMlfcrAMllamMr
C
nt
Cf
(1
ft
D
BW
AT (J)
ADD
KID
Nģģ-CMttr
riMtiri
i MO
Ģ (Ļ
ĻMm)
1
MM
s
t
W
/
B
ADD
MH>
/
MH)
Hazard
AMU
O.O90
so
l.OMft
1
Ift
9
70
3213
ft.3R.10
3.0&45
11EJ1S
Aw Ml
M
so
1.MM
1
1ft
9
70
3215
2.9B-07
3.0B*4
9.1E4M
11
so
I4B4M
1
1ft
70
32M
<ĢE4t
2.0B-02
3JE-06
DmM*
0099
so
I.QM
1
1ft
9
10
32ft)
l.tE-09
S.OROS
2.4E-05
002S
so
1-flfcOft
1
1ft
9
70
32A3
7.1IM0
1.3B-05
ft.0B-05
KģAst*tl01Ģ
Ml?
so
IJO&**
1
1ft
9
70
J2I5
5.4E-10
7.0&0S
7.7E-06
KBMiUM
0.01*
so
1.0M(
I
1ft
9
70
mi
ft.lB.10
ioe-05
3.0E-OS
Mm
02
so
l.O&Oft
1
1ft
9
70
sns
I.9E-07
67B4S
2.9E-Oi
4.IM3
CTfc-irt-ft Ļ i M,,i>^l,^.,lrtģĻĻĻĻ!
Iwriatoi
r
c
14
AV
AM
CV
IF
0
W
ATĢ
ADO
ftTO(Uj)
NĢģ-Cu<Ģr
Qmfcal
Mtf
s (Ģnnmi()
Ģ M-D * f
s
ftlM
i
I
I
s
w
M
t
AM
(ģ0*tO
/
MĢ*>
Hwr4
AMob
0020
moo
01
Ol
I.CM
1ft
9
70
52S5
B.1E-I0
I.3B-05
S.IE-03
Amm
M
ssoo
02
0.012
lO&Oft
1ft
9
70
3215
1.3E-07
1-2B-04
1.1E43
MIWilBi imiiilni
2.1
3300
02
0.1
1.084ft
1ft
9
70
ins
9.2&01
3.1&03
2.4B-05
DmIMb
utģ
)W
01
01
l.OB-Oft
1ft
9
70
>215
1.7E-09
2.5E-05
6.1E-05
OAS
SSOO
02
01
1.Q&0C
1Ģ
9
70
32SS
1.1E-09
9.4E-0ft
1.2E-04
0017
SSOO
02
OOft
l.OB-Oft
Ift
9
70
321S
4.SE-10
6.3B-05
7.2E-06
KSAwkrllM
0019
SSOO
02
0.06
14B4ft
1ft
9
70
3215
5.IE-I0
1 1R*S
2.1&03
IMm
12
02
001
I4M
Ift
9
70
32KS
27E40
1 OE-OS
17E-0J
4.IE-03
CTtiinrln
c
n
at
A
ft
V
0
Ļ W
AT(4)
ADD
! 6
1 m
H*m Cmf
^ T-ll-l
MO
* <*** <
iiiWiii)
X
MM
X
(watfyr)
S
1
AM
(m o*t 4>
Huarft
Al*ii
OM
M0
I.4M
1
1
30
9
30
321$
7.7E-09
3.0&O5
2.6e-04
Aw
94
M0
1.0M
1
1
30
9
30
32SS
3.ftB4ft
3.0E-O4
I2&02
~ XI
M0
i.o&ot
1
1
SO
9
>0
3213
1E-07
2.0&O2
40E-O5
DM**
0099
140
i.tM
1
1
30
9
SO
)2U
I.5E-00
5.0fi-05
J0E-O4
UBS
140
l.OMi
1
1
30
9
30
5215
9.6&09
1J&OS
7.4E-04
lO^iilnWW
0417
140
I.Mft
1
1
30
9
30
321S
6.6E-09
7.0E-05
9.5E^>5
Kģ^whrl$$4
041#
140
I.M
1
1
30
9
30
3203
7.5&09
X06-03
JTE-04
Mia
42
MO
I.0B4*
1
1
SO
9
30
3213
2.4E4ft
6.7&4S
V5t-02
4.9K.02
MtiMIMlrCIN
lnrwW
r
C
14
AT
AM
CF
MW
Ļw
AT (4)
ADD
Nm-Cmcit
rimini
M
*
* * Mģ*S) * t
***!
B
MM
B
(*rMt/yr)
B
-STL
/
B
ADD
MĢ4
/
* Banrd
AMfc
Ģ4M
3300
02
01
1-OWft
30
9
30
3205
2.46-09
t S&05
I6E-04
Aim*
M
2200
02
002
1.064ft
30
9
30
J 215
3 ftE-07
1.2E-04
506-01
l It
2100
02
01
I.OMft
30
*
30
32t$
25E-07
).1&03
ft.TE-05
04*
tm
02
OI
l.(M
30
9
30
3215
4.7C-09
2 5E-05
I9E-04
MSS
tm
02
0.1
I.0M
30
9
30
3215
s.oe-09
94E-06
V2E-04
KSMfMM
0017
tm
02
OOt
I4Ŗ4ft
30
9
30
3205
I.2B49
ft.36-05
10E-OS
KBMilM
0419
noo
02
o.o*
l.QMft
30
9
30
3215
I.4&09
1.1&05
7.1B-05
TMiM
U
mo
02
001
l.ĢM
30
9
30
3215
7.4E-0*
1.0B45
7.4E-0J
1.1E43
2ofl
-------
Tibk D-4. Noacucv Harad CilmlidnM for ScdtoMt Coatact Sceaarios
Sft 3 (RM 3.2 to ĢN fcf hl Uiwiii foe Ada* Iwrwtor
C
m
cr n
B
IF
ED
*W
AT(d)
AlID
utv
daM
s
<-^D
Ļ (W*4 W
s
(mmMUm)
s
(ĢvĢat/yr)
s
Ļ Hazard
Al*m
0.045
300
ioe-06 i
1
44
13
30
4745
3.9E46
1.0E45
1.3643
Amak
11.4
200
1.0646 1
1
4S
13
30
4745
1.064S
3.06-04
3.3642
11.0
200
1.0E-06 1
1
41
13
30
4745
9.6E46
2.0642
4.66-04
DmUcm
0.050
200
1.0C-06 1
1
46
15
50
4745
2 664*
S.0645
53E-04
0.011
200
1.0646 1
1
46
15
>0
4745
7 IE-0ģ
I.3E45
5.5E43
PCS Amdor 1016
0.54
200
i.oe-06 i
1
41
13
30
4745
3.0647
7.0E45
4 3E-0J
PC8 Amdor 1254
o.oa
200
1.0E46 1
1
46
13
30
4745
4 2E-08
2.0645
2IE4j
TSmUm
SA
200
i oe-06 i
1
4t
13
30
4745
5 IE 06
6.7645
7.66-02
1.2&-01
toH br h
cMn
(dlhniil CmH
Ģt ĢMh MImI far CUM KĢcrĢU
Ģr
C
IA
AT All
CP
If
ID
ģW
AT (d)
ADD
RTD(Ģlj)
Noi-Cuctr
QmW
i
(wAtfmaf)
Ļ (ĻŖ^Ļ*1) I (mMw)
Ļ
<**>
s
(nat/rr)
I
(TO
to)
i
ADD
Ļ Hazard
Jdkm
0.045
2300
02 0.1
1.0646
4t
13
30
4745
9.IE-09
1 5645
6 OF-04
Aw win
11
2300
02 0052
1.0646
41
15
30
4745
7.4E-07
1 2644
6 0E03
fcu(2-B*yI)ttK?0pMģUģ
11
2300
02 0.1
1.0B46
46
13
30
4745
2.2E46
3.>643
VBE-CM
Ctdfca
0.050
2300
02 0.1
1.0646
41
13
30
4745
6.0649
2.5645
2 4E44
am
2300
02 0.1
10646
41
13
30
4745
1.6646
9.4E46
1.7643
PCBAmcfer 1016
0J4
2300
02 0.06
1.0646
41
13
30
4745
4 IE-OS
63645
66E44
PCS Afodor 1254
aott
2500
02 0.06
1.0646
4S
13
30
4745
5S649
1 ģe-05
3.26-0-
Ma
5.t
2300
02 001
1.0646
4t
13
30
4745
1.2647
1 0E45
1 2E-02
2.JE42
J of I
-------
TaN* D-4. N(WHiwrHMM
BW
AT (<)
ADD
KA
Ntt-Cutir
fiwtal
tNto
s
t**
M
<ĢMmģ
I
ADD
ĢD(*4j)
N*t-CutĢr
CIibIiiI
Mi
t
(mM Ļ (Ļ
a#m*
Q Ģ (-M-*
t
ft**
I
s
muą
/
w
I
ADD
<Ģ***>
/
(-0*fr4>
HuarO
AMI
IMS
ssoo
02
0.1
1.0B46
u
9
70
52*5
2.06-09
J.5E45
I.3B-04
AMrit
11
ISM
as
0082
10646
u
9
70
3215
1-6B-07
1.2644
I.3B45
11
SM
ai
Ol
1.0646
u
9
70
32*5
4.0647
5.1645
1.5644
OMfcfe
MM
UN
02
01
1.0646
14
9
70
SMS
I.SB40
2.5645
5.3E45
Ml
SSM
j
01
10646
10
9
70
)1U
5.6649
94E46
s.se-04
KBMfMU
054
DM
02
0M
1-0646
1Ģ
9
70
>2*5
9.0G49
6.3E45
1.4B44
PCD Amfav 12*4
OM
SSM
Ģ2
OM
IM
1*
9
70
32*5
1.SB49
1.0645
7.IE-05
U
MM
02
001
i.oeM
10
9
70
52*5
2.5B4*
1.0645
25E45
4.7S45
CTllWrtnW.B.iiBiir
c
m
Ct
A
B
ST
ģ
BW
*T (4)
ADD
mm
Noģ-Cufir
^1
Mb
c
(wMģģ
B
(mmrn*
s
(matfyr)
s
w
/
M
s
ADD
<-Ģ*o
UMi
IM
IM
1J64I
\ I
SO
9
so
32*5
1.764*
5.0645
S.S644
Amw
II
Ml
1JM
\ 1
1
90
9
so
32*5
4.4646
5.0644
15E-02
II
140
1.0M
1 1
1
SO
9
so
5205
4.2E46
10642
2.1B44
OMMi
MM
m
I.CMI
\ 1
I
so
9
so
32*5
1.2641
5.0645
XSe44
INI
m
MM
1 1
1
so
9
50
5205
S.I64B
14645
2.4645
KSMcNtf
0J4
140
MM
\ 1
1
so
9
so
32*5
1J647
70645
1.96-03
VCSMidvUtt
OMB
MO
MM
\ 1
1
so
9
so
52*5
1.9640
roeos
9.36-04
11
140
MM
I 1
1
so
9
so
32*5
2.2E46
6.7645
3.3E-02
MM2
CT llMltlM N|M0M
taHfcrM
lHMlOHlMtĢllĢ
1
a
0
1
C
14
AM
AM
CF
V
ģ
BW
AT (4)
ADD
mm)
Nw-CaĢcĢr
Cfc Ļ III 1
1
k
ģK
tf Ģ
S
w
X
s
JW-
ģ
I
ADD
/
- Huw4
Alttft
MS
22M
u
01
i.oeM
SO
f
SO
32*5
5.46-09
15645
3.4644
Ann
U
2M0
02
0JS2
1.0840
so
9
so
32*5
4.4E-07
1.2644
5.6643
II
SSM
02
01
1.0646
so
9
50
32*5
I.S646
3.16-03
5.5644
DMNo
MM
JM
02
01
10846
so
9
SO
32*5
* 5.6649
2.5645
1.4644
MU
2*0
02
01
1JBM
so
9
so
51*5
9.W49
9.4646
1.0645
KSMrMM
IM
22M
02
OM
i.oeM
so
9
so
52*5
2564*
63645
5.9644
KSMrlSM
MN
2M0
02
OM
1.0B46
so
9
so
S20S
5.56-09
1.S645
1.9E-04
If
2M0
02
001
1.0646
so
9
so
52*3
7.0&M
10645
7.0645
IJE-02
4<*Ģ
-------
Table D-4. Noacaanr Hazard Calnhltm for Scdtacat CoaUct Sccaario*
Safmat 3 (KM 4.9 to <*Ŗ)
M MammtUs Mumrit tohĢMĢĢģĢl fĢr A<ĢH EģĢr~ģģ>
c
IB
CF
n
B
tr
ID
BW
AT (4)
ADD
RfD
NĢB-Cucir
ChMilMl
s
*ĻĢ)
1 O**
(mm*) Ļ
(Mm)
i
(rUyr)
I
i ADD
(Ģlfed)
/
" Hazard
Atom
0054
50
l.OB-Oi
24
17
70
6205
2.SE-09
30E-05
8.5E-05
Aamic
J
50
1.064*
24
17
70
6205
4.3E-07
5 OB-04
1.4E-03
te(2-e*jfiM*yI)fMMUto
220
50
1.06-06
24
17
70
6205
1.OS-OS
2 OE-02
5.2E-04
EMfca
aoiT
50
i.oimk
24
17
70
6205
t.06-10
50E-05
1.6E-0S
TlaptinMir ipanii
a
I (lltHiii) I
- f*#
s
(fwtfyr)
s
/
<*)
s ADD
(ĻCfttO
t
Ifaswd
Al*k
01054
2M0
02
ai
1.0646
41
15
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-------
Table D-7. Summary of Chemical- and Pathway- Specific Cancer Risk*, Reasonable Maximum Exposure Scenario, Lower Ottawa River HHRA
Chakdofhtaal
IagĢUoa of
Miami
DemalCoatad
wKk MbMat
Emm* FMhwur
Denui CoaUct
Iageattaa oT witk Saifac*
Swfw* Water Wafer
Fbk
CoUMptioa
Expoure
Patkwayi Total
% ot
Total
Risk
Segment 1 (RM 0 to <3.2)
lUuwtw
4,4'-DDT (p,p'-)
1.1E-0I
8.4E-07
8.6E-07
0.7%
Atdrin
5.9B-08
3.9E-OS
3.1E-07
1.2E-07
5.3E-07
0.4V.
Annie
2.5E-06
6.4E-07
4.9E-07
1.5E-07
3.7E-06
3.1%
Boao(a)arihncc!ie
3.9E-08
4.2E-08
8.1E-08
0.1%
Baaofakiyime
4.IB-07
5.1H-07
9.9E-07
0.8%
Baasfblfloofinttins
5JB-0S
5.7B-OJ
1.1E-07
0.1%
Ben8>{k)fliionnth>OB
9.1E-09
9.8E-09
1.9E-08
0.0%
bii(2-Elhylhexyl)phthai*lB
5.1B-09
9.0B-09
1.4E-08
0.0%
DibMa(aJ>)aiilhiaceae
S.1B-07
S.5E-07
1.1E-06
0.9%
Dictdrio
1.1B-07
7.2E-OJ
6.4B-07
2.6E-06
3.4E-06
2.8%
Heptachkr
7.3B-08
1.4E-07
2.1E-07
0.2%
Heptochior epoxide
4.0G-OS
1.8E-08
5.8E-08
0.0%
lndeoo[l,2>-cd]pyraK
3A4S
3.9E-0!
.
7.5E-08
0.1%
N-Nitraao-di-o-fvapyUiiiiiie
t6B-07
8.8E-07
ZOB-OS
2.8E-05
4.9E-05
41%
Total Polychlorinaled Biphn ib (PCBģ)
4.4E-07
9.SE-0S
5.4E-07
0.4%
Pvntachloraphenol (PCP)
7.2E-07
5.9E-05
6.0E-05
49.6%
(Total)
4JB46
3.0K-0*
XZB-OS
9.1K-05
OJS-Htt
1.2E-04
Aafhr
4,4-DDD (pff-)
5.6E-06
5.6E-06
0.2%
4,4'-DDE 0V-)
1.4E-05
1.4E-05
0.4%
4,4'-DDT (pj/-)
1.6E-06
1.7B-05
1.8E-05
0.5 %
AMkin
2.3B-07
2.1E-0S
2.2E-05
0.6%
Ģiiiiģ nJwiiMw
1.4E-05
1.4E-05
0.4%
Araenic
2.7E-07
1.9E-05
1.9E-05
0.6%
OMn
1.4E-05
1.4E-05
0.4%
niilifcin
4.7E-06
I.1B-05
8.6E-05
2.6%
gaama-Chkģdine
12Br0i
1.2E-05
0.3%
N-Nitraao-di-ii-propyUmine
5.1B-05
S.1E-05
1.5%
PoatacUoropfaraai (PCP)
1.1E-04
1.1E-04
3%
Tokl Polycfalorimlrrt Bipfaaqfe (PCBĢ)
3.0B-03
3.0E-03
89%
tm-Nonchlor
4.4E-C7
4.4E-07
0.0%
(ToUl)
MMI
O.OE-HM
JC+OO
1.7K-04
UE43
3.4K-03
-------
Table D-7. Suuaaiy of Chemical- ud Pathway- Specific Caaecr Rkki, Reasonable Maximum Exposure Sceaario, Lower Ottawa River HHRA
KixmtMhwar
DmhIOnM
%ol
tafwdaa >t
DmriCaM
latiidia M
wtttofeea
Mi
Bxpoawa
Total
CkMfaalaf lateral
wHkSaHmmt
Sutea Water
Water
Omw>Hn
Fathway* Total
Kiik
Septeat 2 (RM 3 J to <0)
4,4,-DDT (pjf-)
2.7B-09
2.1B-07
2.IB-07
0.4V.
AUHa
1JB-07
19B-0S
6.6B-OI
2.7B-M
3 JE-07
0.7%
Amde
3.CB-06
7.7B-07
L9B-07
2.7E-07
4SB-D6
10.3%
1.1B-07
1OE-07
2JB-07
0.J%
9JB-07
l.QB-06
2.06-06
4.1%
Baa|b]hMlM
1.6B-C7
1.7E-07
3.4E-07
0.7%
Baag(k)faoaalMaa
9.0B-O9
9.6E-09
1.9E-0*
0.0%
bĢ(2-Ŗ&ythaxjrt)pttfcalati
2.7B-0I
4.7B-0Ģ
7.4B-0I
0.2%
DiģaĢaMMtacĢi
7.6E-07
UE-07
1.6B-06
3.3%
DMdria
I.4B-0I
5.6E-0t
1.3B-07
5.0B-07
7.7E-07
1.6%
ncpwoH
l.tB-Ot
3.4E-OS
5.1E-08
0.1%
HaptacUorapaxjdt
1JB-07
S SE-M
1.9B-07
0.4%
Uw(l^<4>jnat
7.48-01
7.9B-0I
1.5E-07
0.3%
1-2B-06
IA-06
5.JE-06
7.7E-06
1.6E-05
33.5%
ToOl PttlycMBrtMfcd Biphmyl* (PCBģ)
1JB-06
2JB47
1.6B-06
3.3%
P.UNrWnrprfc.Uul(PCD
2-3B-07
1.9B-05
1.9E-03
40.6%
(Total)
7JM6
f Tf H
(JS-06
2JB48
OSC-HM)
4JS-05
Aa*r
~,*-DDD (pjf.)
2.IE-06
2.IE-06
0.11%
4^-DDB (jyi"-)
9.1E-06
9.1B-06
0.3t%
4,4'-DDT (pjj"-)
3.1E-07
6.1B-06
6.4E-06
0.41%
AVHa
4.9&0C
2.1B-0J
2.1E-05
1.36%
afefeģŖMai(haa
4.4E-07
4.4E-07
0.03%
Acme
5.0B-07
1.7E-0J
1.7E-05
1.11%
OMm
5.7E-06
5.7B-06
0.36%
Diattm
9.3B-07
2.1B-05
2-2E-05
1.38%
>ĻĻĻĻ riiimiiBii
J.7B-06
5.7E-06
0.36%
1.4E-05
1.4E-05
0.90%
3.5B-05
3.5E-05
2.24%
Tool Polji Miwinrtiil ni|*w^h (PCBa)
1.4B-03
1.4E-03
91.06%
Ļ*-ģ-- - -Ģ
OvMHaHf
4.4E-07
4.4E-07
0.03%
(Total)
MMI
UMi
s.iK-as
L5U)
l.Ģ-03
-------
Table D-7. Summary of Chemical- and Pathway- Specific Cancer Ritlo, Reasonable Maximum Expocure Scenario Lower Ottawa River HHRA
bmaMnx
(tanuiCratact
% of
hlUnil
DotmICwUk*
If Hoi if
wkkSvfM*
PUk
Exponr*
Total
Charicaloflatarwt
SadfaBMt
wki SadiaMt
Sufac* WaUr
Wafer
CoMwapdoa
Pathwayi Total
Rbk
Segment 3 (RM 4.9 to <6.5)
4,4"-DDT(p,p'-)
2.7E-09
2.1E-07
2.1E-07
0.2%
Aitkin
1.6E-07
l.IE-07
6.6E-Š*
2.7B-0S
3.6E-07
0.3 V.
Anaae
2.4B-06
&2B-07
4.1B-07
I.3E-0I
3.5E-06
3.3%
Banģ(a|cd|pfnM
3JB-07
3.SE-07
6.9B-07
0.6%
N-WMo4ĢfnHlaM
7.96-06
1.1B-05
5.5B-06
7.7E-06
3.2E-05
29.8%
Total PoijdiloriulMl Biphenyis (PCBi)
1.7E-0J
3.IE-06
Ļ
2.1E-05
19.9%
PģrtĢehlofophenol (TCP)
1.3IWT7
1.98-05
1.9E-05
18.3%
(Total)
4.H-0S
3J*-ĢS
*31-06
2JUS
OwOC+OO
1.1B-04
AMhr
M'-DDD (p^-)
3.2B-06
3.2E-06
0.1%
4.4-DDB (pjf-)
7.08-06
7.0E-06
0.2%
4,4,-ddt (mpr-)
3.IE-07
3.SE-06
3.9E-06
0.1%
AfcHa
4.9E-08
j.oe-os
5.0B-03
1.6%
4lģakRh>
5.0B-07
5.OB-07
0.0%
Amme
1.SB-07
1.0E-05
I.0E-05
0.3%
Olad
1.98-05
I.9E-0S
0.6%
DMdra
9.3B-07
2.0B-05
2.1E-05
0.7%
flllin OlIlWtMM
1.4B-05
1.4E-0S
0.4%
M Nitiwn iB n impylMHim
1.4E-0S
1.4E-0S
0.5%
PwOchlowplKmol (PCy)
3.5B-05
3.5E-05
1.1%
Ttrt WyrMnrin^id Bipfcwyl' (KB*)
198-03
2.9E-03
94.3%
>-WotfWw
4.4E-07
4.4E-07
0.0%
(ToUl)
MM*
1MMI
.K+M
5.1H5
3.1M3
3.1E-03
-------
Table D-7. Suroaiy of Chemical- sad Pathway- Specific Caacer RUo, Reasonable Maxima Eiporare Sceaarioy Lower Ottawa River HHRA
1
*
!
bfMUMOf
Sttont
Daraai Caatact
witk Mlmat
KxMmvPtfhwK
DndOoĢM
Iafttw tt Ģ*k Sufac*
Sobt* Watar Watar
FUk
CMaapta
Kxponr*
Pathway* Total
% or
Total
Rlik
Sepwit 4 (RM (i to U)
4,#-ODT (pj/-)
2.7E-09
2.IB-07
2.1B-07
0.4%
Aldan
1.I&08
7.2B-09
6.6&08
2.7B-08
1.1E-07
0.2%
Anac
2JE-06
J.7B-07
2.7B-07
8.3&08
3.1E-06
5.3%
ii-lim i in
2.9E-07
3.1B-07
6.1E-07
1.0%
Baao(*k9Mģ
3.1&06
3JE-06
-
-
6.3B-06
10.7%
Bģ(b|haato
3.8B-07
4.1B-07
7.9E-C7
1.3%
tun
J.IE-OI
4.1B-M
7.9B-08
0.1%
W>(2-EllqAkKj4)plAatal>
S.4E-07
9.48-07
1.5B-06
2.5%
DiģĢgtaji)Ģ>tuacauģ
1.1B-06
I.2E-06
2.3E-06
3.S%
DioUrin
uaBrtn
1JB-08
1.3E-07
5.0B-07
6.68-07
1.1%
HqXacUer
l.IROt
3.4E-08
S.1B-08
0.1%
HipUcMuc ipoodt
U&09
4.0B-09
-
1JE-0I
0.0%
Imkaofl X*"-)
3.SB-07
1.7B-05
1.IE-05
1.0%
Aldna
4.9B-08
2.1&0S
2.1B-05
1.2%
ĻIpfafrCHanlna
2.7E-06
2.7B-0J
0.2%
Aatac
I.JE-07
1.1E4S
1. IB-OS
0.6%
Chlenta
6.8E-06
6.IE-06
0.4%
Diatdria
9JB-07
1.4844
1.4B-04
7.8%
Ļ
-------
Table D-8. Summary of Chemical- and Pathway- Specific Cancer Rifles, Central Tendency Exposure, Scenario, Lower Ottawa River HHRA
ezmswc ratawav
Dental Ceatact
%of
Iagettiea /
Dcraul Caatact
Iagestiea tf
with Sarfaea
Fish
Eiptnit
Total
Chemical of Iaterest
Sedlmemt
with Stdlmil
Sarface Water
Water
CearanplUa
Pathways Total
Risk
Segment 1 (RM to <3 J)
Rccreator
4/F-DDT (pj>'-)
i.SE-09
1.2E-07
1.2E-07
0.7%
Aldria
1.8E-08
7.2E-09
4.3E-08
1.8E-08
8.6E-08
0.5%
Aismic
7.5E-07
1.2E-07
6.7E-08
2.1E-08
9.6E-07
5.3%
Beozo(a]anUincene
1.2E-08
7.7E-09
2.0B-08
0.1%
Beazo(a)pyrei>c
1.5E-07
9.3E-08
2.4E-07
1.3%
BĢmzo{b]flaoniotl>eDe
1.6E-08
1.0E-08
...
2.6E-08
0.1%
Beazo{k]fluoraatheEe
2.8E-09
1.8E-09
...
4.6E-09
0.0%
bia(2-EtfiyttMxyt)phthalate
1.6E-09
1.6E-09
...
3.2E-09
0.0%
DibMz|iJk]utkticĢM
1.6E-07
9.9E-08
...
2.5E-07
1.4%
Dieldiim
3.3E-08
l.JE-08
S.SE-OS
3.7E-07
5.0E-07
2.8%
Heptachlor
l.OB-OS
2.0B-08
3.0E-08
0.2%
Heptachlor epoxide
1.2E-08
3.3E-09
--
...
l.SE-08
0.1%
Iģdeao{ 1,2,3-cdlpyreae
I.IE-OS
7.1E-09
...
1.8E-08
0.1%
N-Nitroio-di-n-propylumne
2.0E-07
1.6E-07
2.7E-06
4.0E-06
...
7.1E-06
39.2%
Total Polychloriaated BipheayU (PCBs)
1.4E-07
1.8E-08
...
1.5E-07
0.8%
Peatachloropheaol (PCP)
1.0E-07
8.5E-06
8.6E-06
47.3%
(Total)
1SI-44
S.4Ŗ-Ģ7
3.IM<
1-3K-45
ME+M
Aaglor
4,4-DDD (pj>-)
--
5.9E-07
5.9E-07
0.1%
4,4'-DDB (p J.'-)
1.4E-06
1.4E-06
0.3%
4,4"-DDT (p,p'-)
9.3E-07
1.8E-06
2.7E-06
0.6%
AMria
1.4E-07
2.2E-06
2.4E-06
0.5%
slpha-Chlordaae
1.7E-07
1.7E-07
0.0%
Aneac
1.6E-07
2.0E-06
2.1E-06
0.5%
CUonlaa*
1.5E-06
1.5E-06
0.3%
Dieidna
2.8E-06
8.6E-06
1.1E-05
2.6%
gsiiaua CUoidMi
_
1.2E-06
1.2E-06
0.3%
N-Nitroso-di-B-propylimiae
~
3.1E-05
3.1E-05
7.1%
PeaUcUoropheaol (PCP)
~
_
6.5E-0J
6.5E-05
15.0%
Total Polychloriaatcd Bipheayli (PCBs)
_
3.1K-04
3.1E-04
72.6%
traas-NoaasUor
_
4.6E-08
4.6E-08
0.0%
(Toto!)
MC+M
MMt
ME+M
ģM5
3JE-44
4JE-M
Pa#* I of4
-------
Table D-t. Siumy of Chemical- and Pathway- Specific Caacer Risks, Central Tendency Expowre, Scenario, Lower Ottawa River HHRA
Ewiin Mm
Dcraul Caatact % ģf
Iagattiaa if Dtnul Caatact Iagaatlaa af with Swfaca Flsk Exp*rare Tatal
CtĢatol af lataraat SĢdtģĢģt with SģifģcĢ Water Watw CaaiaaipHaa Pathway! Tatal Klik
Secaeal 2 (RM 3 J to <4 J)
Recruiter
4,4--DDT (p,p'-)
3.7E-10
2.9E-08
3.0E-08
0.4%
Aldria
4. IE-OS
1.6E-0S
9.2B-09
3.SB-09
7.0B-0S
0.8%
Aaaaic
9.1E-07
1.4E-07
1.2B-07
3.9E-0S
1.2E-06
14.6%
Bwaa(a)aitluacĢM
3.5E-08
2.2B-08
~
5.7E-08
0.7%
BĢazo{a]pynaa
2.9E-07
1.9B-07
_
4.SE-07
5.7%
Bao(t>|flBofialW
5.0B-08
3.2E-08
_
8.2E-0S
1.0%
BĢaxo{k]fhxxaathĢaa
2.IE-09
l.tE-09
4.5E-09
0.1%
Wa<2Ģahy*wKyt)pNhalalH
S.2B-09
S.iE-09
_
1.7B-08
0.2%
DibĢaz(*,k)aaUi*cĢa*
2.3B-07
l.JB-07
3.SE-07
4.6%
DMdria
2.6E-0S
1.0E-08
1.7E-0S
7.2E-08
...
1.3E-07
1.5%
HopUcUor
2.4E-09
4.9E-09
7.3E-09
0.1%
Heptachlor cpoxida
3.9E-08
1.IB-OS
_
5.0E-08
0.6%
Iģdeao( 1,2,3-cd]pyrģe
2.3E-0S
1.4E-0S
3.7E-0S
0.4%
N-Nftioao-rfi-B-ptopylamiaa
3.7E-07
3.0B-07
7.6E-07
1.1E-06
2.5E-06
30.5%
Total PolycMoriaated BipWayla (PCBģ)
3.9E-07
5.2B-0S
--
4.4E-07
5.3%
Peatackloropkenol (PC?)
3.2B-08
2.8E-06
2.SE-06
33.5%
CTMOt
9-4M7
9.4M7
4JE-M
MKM
SJE-M
iglar
4,4'-DDD (pj>'-)
2.9E-07
2.9E-07
0.2%
4,4'-DDB (p#-)
_
9.6E-07
9.6E-07
0.5%
4,4"-DDT iff'-)
1.4E-07
6.4E-07
7.SE-07
0.4%
Aldria
1.SB-OS
2.2E-06
2.3E-06
1.3%
atpka-Cklofdaaa
_
4.6B-08
4.6E-0S
0.0%
Anaaio
~
1.9E-07
l.SB-06
2.0E-06
1.1%
CMofdaa*
6.0E-07
6.0E-07
0.3%
DMdria
3.5E-07
2.2E-06
2.5E-06
1.4%
ganna-CUofdaaa
_
_
6.0E-07
6.0E-07
0.3%
N-Nite>an rfi a piĢp>laaaiaa
_
5.3B-06
5.3E-06
3.0%
PeatacUoropkaaol (POP)
1.3E-0J
1.3E-05
7.4%
Total Polycfclorimated Kphaayla (PCBa)
_
_
l.SE-04
l.SE-04
84.0%
toaaa-Noaachlor
4.6E-0S
4.6E-0S
0.0%
(TataD
MlrfM
MItN
jOMI
1JM5
1j(M4
1JE44
Page 2 of 4
-------
Table D-8. Summary of Chemical- and Pathway- Specific Cancer Risks, Central Tendency Exposure, Scenario, Lower Ottawa River HHRA
Inwm Pathway
Denaal Caatact
/.of
Iagettiaa if
Deraul Caatact
Iagcattaa af
with Surface
Fltk
Expature
Tatal
Chearieal of Interest
Scdhneat
with SeiiaieBt
Surface Water
Water
CaasaBptiaa
Pathway* Total
Rilk
Septtil 3 (RM 4.9 to <6.5)
Rccrcatar
4,4'.DDT(p,p'-)
~
3.7E-I0
2.9E-08
...
3.0E-08
0.1V.
Aldrin
4.9E-08
1.9E-0S
9.2E-09
3.8E-09
8.1E-08
0.4%
Aixnic
7.3E-07
1.1E-07
3.7E-08
1.2E-08
8.9E-07
3.9 V.
Beaao(a]aBthi*ceae
9.7E-08
6.2E-08
...
1.6E-07
0.7%
BĢazo{a]pyrcac
1.2E-06
7.5B-07
---
1.9E-06
8.3%
BĢaao{b]fluonatkaM
1.5E-07
9.7E-08
...
...
2.5E-07
1.1%
B*B2o{k]fluorm>Ueiie
1.3E-08
8.JE-09
...
...
...
2.2E-08
0.1%
bis(2-Ethy1haxy1)pMhalate
1.6E-07
1.7B-07
...
3.4E-07
1.5%
DibĢaz|a,h]aathiacea*
2.5E-06
1.6E-06
4.1E-06
17.9%
Dieldrim
1.SE-0S
5.7E-09
1.7E-08
7.2E-0S
1.1E-07
0.5%
HepUchlor
2.4E-09
4.9E-09
7.3E-09
0.0%
Hcptacklor epoxide
1.9E-0S
5.3E-09
_
2.5E-08
0.1%
Iadno{ 1,2,3-cdJpyreae
1.0E-07
6.5E-08
1.7E-07
0.7%
N-Nitroao-di-n-propytamiae
2.4E-06
1.9E-06
7.6E-07
1.1E-06
...
6.2E-06
26.9%
ToUI Potychloruated Bipbeaylf (PCBģ)
5.3B-06
7.0E-07
6.0E-06
25.9%
PeaUckloropbcaol (PC?)
3.2E-08
2.8E-06
2.8E-06
12.0%
(Tetal)
1JE-IS
iitM
1.047
4.IE-M
O.IE+M
23E-4S
100%
Aagler
4,4-DDD (pj>-)
3.3E-07
3.3E-07
0.1%
4,4'*DDB (p,p'-)
7.3E-07
7.3E-07
0.2%
4,4"-DDT (pj)'-)
1.4E-07
3.7E-07
J.1E-07
0.1%
Aldna
1.1E-08
5.3E-06
5.3E-06
1.5%
atpfca-CUonUac
_
5.2E-08
5.2E-08
0.0%
Aiscaic
5.7E-08
1.1E-06
1.1E-06
0.3%
OJoKdaae
_
~
2.0E-06
2.0E-06
0.6%
DWMna
3.5E-07
2.1E-06
2.4E-06
0.7%
faaane-CUotdaaa
_
_
_
1.5E-06
1.5E-06
0.4%
N-Nitaxo-di-B-pciopyUaaiae
J.3E-06
--
5.3E-06
1.6%
Paatacklorophanol (PCP)
1.3E-05
1.3E-05
3.9%
Total Polycfcloriaatad BifWayli (PCBf)
3. IE-04
3.1E-04
90.5%
baas-Noaacklor
~
_
4.6E-0S
4.6E-08
0.0%
(Tetal)
MM!
MM!
MMI
lSIrtS
34I-M
3,4E-#4
Pag* 3 of 4
-------
Table M Snumy of Chemical- and Pathway- Specific Cancer RUb, Central Tendency Expoeare, Scenario, Lower Ottawa River HHRA
bttaaMm
Dermal CmUcI % Ģf
Iafertiea ( Dermal Ceatect Iageetfea if with Swface Fl(k Exp*tare Tetal
Chemical Ģf laterert Sediment with Sediment Snrface Water Water Ceaģnmptloa Pathway! Tetal Rlit
Sefmeat 4 (RM 6J5 to 8 Jt)
Becreater
4,4,-DDT(p.p'-)
3.7E-10
2.9E-08
3.0E-08
0.3%
Aldria
3.3E-09
1.3E-09
9.2E-09
3.8E-09
1.8E-0S
0.2%
Aneaie
6.7E-07
1.0E-07
3.7B-08
1.2E-08
8.3E-07
7.4%
Beazo(a]aathfaeeM
9.0E-08
5.7E-08
1.5E-07
1.3%
Beaso(a]pyieae
9.3B-07
6.0B-07
1.5E-06
13.8%
Beaao{b)flaoe
1.2E-07
7.3E-0S
...
1.9E-07
1.7%
Beaxo{ k] flooraitkeM
1.2E-08
7.5E-09
1.9E-0S
0.2%
bte(2-E#iyttwxyl)phthalate
1.6E-07
1.7B-07
3.4&4J7
3.0%
Dibeaz(aJk)aBUriceM
3.4E-07
2.2E-07
...
...
5.5E-07
5.0%
Dieldria
6.1E-09
2.4E-09
1.7E-08
7.2E-0S
9.8E-08
0.9%
Heptachlor
--
2.4E-09
4.9B-09
7.3E-09
0.1%
Heptachlor epoxide
2.6E-09
7.2B-10
3.3E-09
0.0%
luckaol 1/Z.J-cdJpyroac
8.2B-0ģ
S.lErO*
1.3E-07
1.2%
N-Nitn>ģo-d>-B-propyUmiBĢ
1.2E-06
9J&07
7.6E-07
1.1E-06
~
3.9E-06
35.5%
Total PotycMoriaated Bipheayl* (PCBt)
4.2B-07
5.6B-08
_
4.8E-07
4.3%
Peatachloiopheaol (POP)
3.2B-08
2.8E46
2.SE-06
25.1%
(Tetal)
4.H-M
2JE-M
UM7
OMi
ME+M
l.lE-tS
gler
4,4'-DDD (p*'-)
~
5.8E-07
5.8E-07
0.3%
4,4-DDB (pjģ'-)
_
1.2E-06
1.2E-06
0.6%
4,Ģ-DDT(p,p'.)
1.4B-07
1.8E-06
2.0E-06
1.0%
Aldna
l.SE-Ot
2.2E-06
2.3E-06
1.1%
tlpka-CMordue
2.9E-07
2.9E-07
0.1%
Anemc
_
--
S.7E-0S
1.1E-06
1.2E-06
0.6%
Chtoidaae
--
7.1R47
7.1E-07
0.4%
Dieldria
.
3.5E-07
1.4E-0S
l.JE-05
7.4%
(aamm-Chlofdaao
~
3.3E-07
3.3E-07
0.2%
N-Nitsoeo-di-a-propyUmiM
~
5JB-06
5.3E-06
2.7%
Peatachloiopheaol (POP)
1.3B-05
1.3E-05
6.7%
Total Polychlooaeted BiplMmyli (PCBi)
1.6&-04
1.6E-04
78.9%
traa*-No*acklor
9.8E-08
9.8E-08
0.0%
(Tetal)
ME+M
IJMt
1JMS
1JM4
I.IE44
Page 4 of 4
-------
Table D-9. Summary of Chemical- and Pathway- Specific Noncancer Hazard*, Reasonable Maxima Expowre Scenario, Lower Ottawa River HI IRA
Pathway
Deraial Contact
%of
IigtitUi of
Dtnul Ceatact
Iageatioa (
with Sarface
Flih
Expo fu re
Total
ChcHical of Iatereit
Sodiauat
with Scdtaiaat
Sarface Water
Water
Ciinafllta
Pathwayi Total
Hazard
SefKCBt 1 (RM 9 to <3.2)
AMI Ricrnlir
2-CUorophcnol
S.2B-04
4.8E-03
5.7E-03
13.0%
Aldria
3.1E-05
1.1E-04
5.4E-04
1.6E-04
8.4E-04
1.9%
Anenic
1.5E-03
2.1E-03
9.7E-04
2.1E-04
4.7E-03
10.9%
Atnzioe
3.6E-0J
5.0E-05
8.6E-05
0.2%
bi*(2-Etkylkexyl)phUialate
5.0E-06
4.7E-05
5.2E-05
0.1%
Dieldria
3.7E-0S
1.3E-04
7.2E-04
2.1E-03
...
3.0E-03
6.8%
Di-ģ-butyipktkalģU
S.6E-06
2.6E-0S
3.4E-05
0.1%
gumna-Beazeae haxacUoride (g-BHC; Lindane)
~
5.2B-05
6.7E-05
...
1.2E-04
0.3%
Hoptachlor
2.9E-05
4.0E-05
7.0E-05
0.2%
Heptacklor epoxide
9.0E-05
2.3E-04
3.2E-04
0.7%
PCB Aroclor 1016
1.2E-05
1.4E-05
...
2.5E-05
0.1%
PCB Aroclor 1254
4.6E-0J
5.5E-05
...
...
1.0E-04
0.2%
PentacUorophenol (PC?)
1.8E-04
1.1E-02
...
1.1E-02
24.7%
Thallium
4.3E-03
5.2E-03
5.2E-03
3.1E-03
...
l.SE-02
40.8%
(Telal)
ME43
7JE-43
Ģ.5E-Ģ3
2.1E-02
ĻE+Of
4.4E-02
Child Recreator
2-CUoropheaol
3.IE-03
3.4E-02
3.SE-02
11.9%
Aldlia
5.SE-04
2.7E-04
2.5E-03
1.1E-03
4.SE-03
1.4%
Annie
2.SE-02
4.9E-03
4.5B-03
1.5E-03
3.SE-02
12.0%
AtnziM
1.7E-04
3.5E-04
5.2E-04
0.2%
biĢ(2-BUyllwxyl)pkUalatĢ
9.2E-05
1.1E-04
2.0E-04
0.5%
Dtoktna
6.IE-04
3.1E-04
3.4E-03
1.5E-02
1.9E-02
5.9%
Di-a-botyipkUalatc
_
4.0E-05
l.SE-04
_
2.2E-04
0.1%
gamma licazcac hexacUoride (g-BHC; Liadaae)
2.4E-04
4.7E-04
_
7.1E-04
0.2%
Heptachlor
1.4E-04
2.SE-04
~
4.2E-04
0.1%
Heptachlor epoxide
1.7E-03
5.4E-04
_
2.2E-03
0.7%
PCB Aroclor 1016
2.2E-04
3JE-0S
2.5E-04
0.1%
PCB Aroclor 1254
8.5E-04
1.3E-04
9.8E-04
0.3%
Peatachloropheaol (PCP)
I.4E-04
7.5E-02
7.5E-02
23.6%
ThaOini
8.1E-02
1.2E-02
2.4E-02
2.2E-02
1.4E-01
43.5%
(Total)
I.1M1
1JI42
44M2
ISL41
MMI
3.2E-01
Pa* 1 of I
-------
Tabic D-9. Sunny of Chmicil- aad Patkwmy- Specific Noacsacer Hazank, Reacoaabie Mudnaai Eipoaare Sceaario, Lower Ottawa River HHRA
Denial C*atact
%Ģr
Iafcftiaa ģt
Dermal CaaUct
(igtttlaa (
witk Sarfacc
Flik
IlftHR
Tatal
Ckcarical tf Ialereit
Sediateat
with S*ģ2
1.7C+#I
CI04 Aag|Ģr
2-CUoro|ikcaiol
4.3E-02
4.3E-02
0.0%
4,4"-DDT (p4ģ'-)
--
2.3E-01
2.3E-01
0.1%
AMria
1.4E-03
9.9E-02
1.0E-01
0.1%
alpfca-CUotduM
2.2E-02
2.2E-02
0.0%
Ambk
~
1.9E-03
9.9E-02
1.0E-01
0.1%
Abasia*
~
4.4B-04
4.4E-04
0.0%
Cklocdaa*
_
1.9E-01
X.9E-01
0.1%
Diekhia
~
1.IE-02
2.4E-01
2.6E-01
0.1%
Di-B4nz$yipklksletģ
2.3E-04
2.3E-04
0.0%
gamaw Hwwm kgxarklnritfa (g-BHC; Liadaac)
_
5.9E-04
~
5.9E-04
0.0%
linaiM rMniJimi
1.6E-01
1.6E-01
0.1%
Paatacklacopkaaol (PC?)
9.3B-02
9.3E-02
0.1%
Tkillsus
2.7E-02
2.7E-02
0.0%
Total FotycUociaated Kpknyli (PCB*)
_
1.IE+02
l.SB+02
99.3%
lna*-Noaacklor
5.9E-03
5.9E-03
0.0%
rrģun
MK+M
MMt
U04M
1JE41
11M1
1JM1
Page 2 of t
-------
Table M Suuaaiy of Chemical- and Pathway- Specific Noncaacer Hazard*, Reasonable Maximum Exposure Scenario, Lower Ottawa River HHRA
Dermal Caatact % *f
IitMtlM ģf Derawl Ceatact IlfMllti ( with Surface Flih Eiponirt Tetal
OwlcilĢHģttwĢ> SĢdliĢa< wilt SĢ41ģf ģt Satface Water Watw C>ģwptlģ> Pathwayt TeUl HĢurd
Sefneat 2 (RM 3J to <4.9)
AM Recrvatcr
2-CUwopkiol
1.4E-04
S.4E-04
9.8E-04
3.4%
Aldria
7.0E-05
2.5E-04
1.2E-04
3.4E-05
...
4.8E-04
1.7%
Aoeaic
1.8E-03
2.5E-03
1.8E-03
3.9E-04
...
6.5E-03
22.6%
Atnziae
2.0E-05
2.SE-0J
...
4.8E-05
0.2%
bii(2-BUylbexyl)phthaUte
2.6E-05
2.4E-04
...
2.7E-04
0.6%
Dialdna
2.8E-05
1.0E-04
1.4E-04
4.1E-04
6.8E-04
2.4%
Di-a-botyipkUwIate
...
7.0E-06
2. IE-OS
...
2.8E-05
0.1%
(amma-Bcizeme koucUoride (g-BHC; lindine)
1.2E-05
1.5E-05
2.7E-05
0.1%
HaptacUor
7.0E-06
9.7E-06
1.7E-05
0.1%
HeptecMoi epoxide
2.9E-04
7.3E-04
...
1.0E-03
3.6%
PCB Arodor 1016
2.3E-04
2.SB-04
S.1E-04
1.8%
PCB Aioclor 1254
1.1E-04
1.4E-04
2.5E-04
0.9%
Pcatackloropheaol (PCf)
5.9E-05
3.4E-03
3.5E-03
12.2%
lUUom
4.1E-03
4.9E-03
3.4E-03
2.0E-03
...
1.4E-02
50.1%
iŖKr* 3
9.1143
S.7M1
7JE-M
ĻE+M
2.9E-02
CUM Recreater
2-Cfcloropkeaol
--
6.6E-04
5.9E-03
6.6E-03
2.9%
Aldria
1.3E-03
6.0E-04
5.5E-04
2.4E-04
2.7E-03
1.2%
Aneaic
3.3E-02
6.0E-03
8.3E-03
2.8E-03
5.0E-02
22.6%
Atnziae
9.4E-05
1.9E-04
_
2.9E-04
0.1%
bii(2-Etkythexyl)phtkaUtĢ
4.8E-04
5.8E-04
1.1E-03
2.4%
Diektna
5.3E-04
2.4E-04
6.6E-04
2.9E-03
4.3E-03
1.9%
Di-a-butytpfclkalite
3.3E-05
1.5E-04
_
1.8E-04
0.1%
Hiiia-Bewi koucUonb (g-BHC; 1 iartian)
_
3.3E-05
1.1E-04
1.4E-04
0.1%
HcptacUor
2.7E-04
6.8E-05
3.4E-04
0.2%
HefrtaoUor epoxide
J.5E-03
1.7E-03
7.2E-03
3.2%
KB Aioctar 1016
4.3E-03
6.6E-04
4.9E-03
2.2%
PCB Aroctor 1254
2.1E-03
3.2E-04
2.4E-03
1.1%
Peatecfcloropfceaol (PCP)
2.7B-04
2.4E-02
2.4E-02
11.0%
TfceMann
7.6E-02
1.2E-02
1.6E-02
1.4E-02
1.2E-01
52.8%
(TetoD
ije-Ģi
2JM2
2.7E-W
S.1M1
MB+M
2.2E-41
PĢfģ3ofĢ
-------
Table D-9. Sawsiiy of Ckeakal- nd Pathway- Specific Noncaaccr Hazank, Remuhlr Maxtauua Expoann Scenario, Lower Ottawa River HHRA
Doimal Coatact
%*f
Iagartioa of
Dermal Coatact
Iagoatloa of
vM Svrfacc
flth
Eipmre
Total
Ckcarical ( lateral
8iilĢ>t
with StAanl
Sarfaco Wator
Walit
Coanwptloa
Pathwayi Total
Hazard
AM Ai|hr
2-CUotophoaol
~
~
4.2E-03
4.2E-03
o.oy.
w-vmtot')
--
I.2E-02
S.2E-02
0.1%
Aldria
1.7E-04
9.6E-02
9.7B-02
0.1%
ilpb-CUoiihM
5.SB-03
5.8E-03
0.0%
Aneaic
2.0E-03
S.7E-02
8.9E-02
0.1%
Atrazue
_
1.4E-04
1.4E-04
0.0%
CUoidiM
7.6E-02
7.6E-02
0.1%
Diekbia
2.0E-03
6.0E-02
6.2E-02
0.1%
Di-a-butyiphtkilģU
_
1.0E-04
1.0E-04
0.0%
gamma-Bene** kmcklmde (g-BHC; Liadue)
7.6E-05
7.6E-05
0.0%
gamma-Cklordaa*
7.6E-02
7.6E-02
0.1%
PaaUcklofopk*nol (PCP)
1.7E-02
1.7E-02
0.0%
Thaffinm
~
1.0E-02
...
1.0E-02
0.0%
Total Potyckloriaatcd BipbeayU (PCBt)
_
~
8.3E+01
8.3E+01
99.4%
tiaaa-Noaachlor
S.IB-03
5.SE-03
0.0%
(Total)
MM!
MBtM
3iģ2
L3Z+M
UtMl
Child Aaglar
2-CUtnpkaol
_
7.4E-03
7.4E-03
0.0%
4,4'-DDT (p4>'-)
S.4E-02
S.4E-02
0.1%
Aidria
~
_
3.0B-04
9.9E-02
9.9E-02
0.1%
alpha-CUoidaa*
~
_
5.9E-03
5.9E-03
0.0%
Aiseaic
3.JE-03
I.9E-02
9.3E-02
0.1%
Abaziae
2.4E-04
2.4E-04
0.0%
CMoiriaaa
_
7.IE-02
7.SE-02
0.1%
Dieldrin
_
3.6E-03
6.2E-02
6.5E-02
0.1%
Di-i-tojrlpklktUb
_
l.tB-04
l.SE-04
0.0%
gamma-Baanae haxacklorid* (g-BHC; Liadaaa)
~
1.3B-04
1.3E-04
0.0%
gamma-CMofdaaa
--
_
_
7.1E-02
7.SB-02
0.1%
PeaUcUoropkeaol (PCP)
_
_
3.0B-02
3.0E-02
0.0%
Thallium
_
Ļ
1.IE-02
1.IE-02
0.0%
Total Polyckloriaated B^keajfb (PCBģ)
_
I.5E+01
8.5E+01
99.3%
traaa-Noaachlor
J.9E-03
5.9E-03
0.0%
(Total)
MM*
MM*
JE+M
43K-02
liMl
sje+*i
Pago 4 of t
-------
Table D-9. Summary of Chemical- and Pathway- Specific Noncancer Hazard*, Reasonable Maximum Exposure Scenario, Lower Ottawa River HHRA
Pathway
Denial Coatact
%Ģr
Iagctttoa of
Dtimal Caatact
Iaget tiaa tl
wMk Sarfac*
FlĢh
Expotarc
Total
Chcarical of Iitiral
Stdlacil
witk Sadlauat
Sarfac* Watar
Watar
Caaiaaiptlaa
Pathway* Tatal
Hazard
Segment 3 (RM 4.9 to <6.5)
Ahll Rccreator
2-Chloropkenol
...
1.4E-04
S.4B-04
9.8E-04
1.5%
Aldria
8.5E-05
3.0E-04
1.2E-04
3.4E-05
...
5.4E-04
0.8%
Aneaic
1.4E-03
2.0E-03
5.4E-04
1.2E-04
4.1E-03
6.1V.
Atraztne
2.OB-OS
2.8E-05
4.8E-05
0.1%
biĢ(2-EUyl bexyl)phtliĢlatc
S.2E-04
4.9E-03
...
5.4E-03
12.4V,
DMifata
1.6E-05
5.7E-05
1.4E-04
4. IE-04
...
6.2E-04
0.9%
Di-ģ-butylpktlģlĢtĢ
7.0E-06
2. IE-OS
2.8E-05
0.0V.
Cunma-Beaasnie bexacMorxk (g-BHC; Lindane)
1.2E-05
1.5E-0S
2.7E-05
0.0V.
Haptachlor
---
7.0E-06
9.7E-06
1.7E-05
0,0V.
HeptacUor epoxide
1.4E-04
3.6E-04
...
5.1E-04
0,8 V.
PCB Aiodor 1016
1.7E-02
2.0E-02
3.6E-02
54.2%
PCB Aiodor 1254
1.1E-03
1.4E-03
...
2.5E-03
3.7V,
PealacUoropfceaot (PCP)
5.9E-05
3.4E-03
...
3.5E-03
5.2%
Thallium
3.2E-03
3.9E-03
3.4E-03
2.0E-03
...
1.2E-02
18.6%
(Tatal)
2JE-ģ2
3.3E-42
4.4M3
6.9K43
ME+M
6.7E-02
CUM Recreator
2-Ckloiopkeaol
6.6E-04
5.9E-03
6.6E-03
1.1%
Akfaia
1.6E-03
7.3E-04
5.5E-04
2.4E-04
3.1E-03
0.5%
ArMnc
2.7E-02
4.8E-03
2.5E-03
I.4E-04
J.5E-02
6.0%
Atimziae
9.4E-05
1.9E-04
2.9E-04
0.0%
bii(2-Blhylkexyl)pktha]ato
9.6E-03
1.2E-02
2.1E-02
49.0%
DieMria
3.0E-04
1.4E-04
6.6E-04
2.9E-03
4.0E-Q3
0.7%
Di-a-butyipkUalatc
3.3E-05
l.SE-04
l.SE-04
0.0%
gaaaaa-Baaaeaa knucUoriib (g-BHC; Liadaae)
_
5.SE-0S
1.1E-04
1.6E-04
0.0%
Haptachlor
~
3.3E-05
6.8E-05
1.0E-04
0.0%
IttpUckkH epoxide
2.7E-03
8.6E-04
~
3.SE-03
0.6%
PCB Aiodor 1016
3.IE-01
4.7E-02
...
3.6E-01
PCB Aiodor 1254
2.1E-02
3.2B-03
--
2.4E-02
4.2%
Paatachloropheaol (PCP)
_
2.7B-04
2.4E-02
2.4E-02
4.2%
TkalUam
6.0E-02
9.3E-03
1.6B-02
1.46-02
--
1.0E-01
17.2%
(Total)
MM1
7JI41
2.1K42
UM2
5JE-41
Pap 5 oft
-------
Table D-9. SwMMiy of Cheaicat- a ad Pathway- Specific Noacaaccr Hazartk, Reaaoaable Mariana Expowre Sceurio, Lower Ottawa River HHRA
ImimraUm
Deraial Cealact
%*r
Iagecttea ef
DarauU Caitoct
llgMlUl (
with Sarface
ruu
EqMnrt
Tatal
CheaMcal ef Iilcml
SĢUaeat
wtth MImiI
Sarface Water
Water
Ctamptlti
Pathway* Tatal
Hazard
4
s
l
2-CUompheaol
~
4.2E-03
4.2E-03
0.0%
(p,p'-)
4.SE-02
4.8E-02
0.0%
Aldria
1.7E-04
2.JE-01
2.3E-01
0.1%
alpka-CMofdaae
6.SE-03
6.5E-03
0.0%
Araaic
J.9B-04
5.3E-02
5.3E-02
0.0%
Atraaaa
~
1.4E-04
1.4E-04
0.0%
CUordaa*
_
2.5E-01
2.JE-01
0.1%
Dicldria
_
2.0E-03
5.SB-02
6.0E-02
0.0%
Di-ģ-b
MK+M
MMI
MMI
SiUl
1.7mm
1.TM2
ilM Aagiar
'
2-CMoropheaol
~
7.4E-03
7.4E-03
0.0%
4,~-DDT (pj)'-)
4.9E-02
4.9E-02
0.0%
Aldria
3.0E-04
2.3E-01
2.3E-01
0.1%
alpha-Chlordaae
_
6.7E-03
6.7E-03
0.0%
Aiseaic
_
1.0B-03
S.4E-02
5.SE-02
0.0%
Atraziae
2.4B-04
2.4E-04
0.0%
Chlondaae
--
2.5E-01
2.5E-01
0.1%
Dieldria
_
3.6E-03
5.9E-02
6.3E-02
0.0%
Di-a-butylpkiJulate
l.SE-04
l.SE-04
0.0%
(Wmt-BMHH bexacUorida (f-BHC; Liadaw)
1.3B-04
~
1.3E-04
0.0%
gamna rtliii4>i
_
~
_
1.9E-01
1.9E-01
0.1%
PvaiacUoropheaol (PCP)
~
1.0B-02
3.0&02
0.0%
Tfcallinwi
l.SB-02
l.SB-02
0.0%
Total PotycMoriaated Bipheayls (PCBģ)
1.7E+02
1.7E+02
99.5%
tnaa-NoaacUor
~
5.9B-03
5.9E-03
0.0%
(Tttal)
MM*
MMI
MMI
Ģ.ut-n
1.7I+I2
1JE+02
Page 6 of t
-------
Table D-9. Summary of Chemical- and Pathway- Specific Noacancer Haxenk, Reasonable Maximum Expoeure Scenario, Lower Ottawa River HHRA
Patfcw.v
Dermal Ceatact
% ef
Iageetlea of
Derail Ceatact
Iageetlea tf
wttk Sarface
FlĢk
Ezpeiare
Total
Ckeadcal *f Iatoreit
Scdlaicat
with Sediauat
Sarface Water
Water
CeaiaaiptUB
Pathway! Total
Hazard
Scpitai 4 (RM 6i to 8 J)
AMI Recreator
2-ChloropkeBol
1.4E-04
8.4E-04
...
9.SE-04
3.8%
Akbii
5.7E-06
2.1E-05
1.2E-04
3.4E-0J
1.8E-04
0.7V.
Aneaic
1.3E-03
l.SB-03
5.4E-04
1.2E-04
3.8E-03
14.7%
Atrmzise
2.0E-0J
2.SE-05
...
4.8E-05
0.2%
bii(2-Etkyllttxyl)phtkalate
1.7E-05
1.6E-04
1.8E-04
0.4%
Dieidna
6.7E-06
2.4E-05
1.4E-04
4.1E-04
5.8E-04
2.2%
Di-a-batylphtkalate
7.0E-06
2.1E-05
...
2.8E-05
0.1%
gamma-Beazeac hmackloride (g-BHC; Liadaae)
1.2E-05
1.5E-05
...
2.7E-05
0.1%
HepUcklor
7.0E-06
9.7E-06
...
1.7E-05
0.1%
Heptacklor epoxide
2.0E-05
4.9E-05
6.8E-0S
0.3%
PCB Aroelor 1016
8.8E-04
1.1B-03
~
1.9E-03
7.4%
PCB Aroelor 1254
2.3E-03
2.7E-03
_
5.0E-03
19.0%
Peatacklorophenol (PCP)
5.9E-05
3.4E-03
3.5E-03
13.4%
Tkaflnim
2.0E-03
2.4E-03
3.4E-03
2.0E-03
9.7E-03
37.3%
(Total)
UH3
S.2E-43
4.4K-43
MI43
MM*
2.6E-42
CUM Recruiter
2-CUoropkenol
6.6E-04
5.9E-03
...
6.6E-03
3.1%
Aldria
1.1B-04
4.9E-05
5.5E-04
2.4E-04
9.4E-04
0.4%
Aneaic
2.5E-02
4.4E-03
2.SE-03
I.4E-04
3.2E-02
15.4%
Atruxae
9.4E-05
1.9E-04
2.9E-04
0.1%
bia(2-ElkyllMxyl)pktkalatc
3.2E-04
3.9B-04
_
7.2E-04
1.6%
Dieidna
1.2E-04
5.7E-05
6.6E-04
2.9E-03
3.7E-03
1.8%
Di-a-botyipktkalate
3.3E-05
1.5E-04
1.8E-04
0.1%
gunaw-Beneae hexacUoride (j-BHC; Liadaae)
5.5E-05
1.1E-04
1.6E-04
0.1%
Heptachlor
3.3E-05
6.SE-05
1.0E-04
0.0%
HeptacUor epoxide
3.6E-04
1.2E-04
4.8E-04
0.2%
PCB Aroelor 1016
1.6E-02
2.SE-03
1.9E-02
9.0%
PCB Arador 1254
4.2E-02
6.4B-03
4.SB-02
23.1%
PeaUckloropkemoI (PCP)
~
2.7B-04
2.4E-02
2.4E-02
11.7%
Thankm
3.7E-02
J.6E-03
1.6E-02
1.4E-02
7.2E-02
34.5%
(T.U1)
1-2K41
tIMl
2.1B-92
4JI42
I.IMI
2.1E-C1
Ptytloft
-------
Table D-9. Suuuuy of Chcaikal- and Pathway- Specific Noacanccr Hazard*, Rcawaabk Muiau Exposare Scenario, Lower Ottawa River HHRA
Dcraul Caatact
% af
Iagaafiaa af
Demal Caatact
Iagatttaa af
wftfcSaifaca
FUk
Eiptitre
Tatal
Cfcaarical af Iileml
Striatal
with Sadtaaaat
Satfaca Watar
Watar
Caaiaaiptlaa
Pathway* Tatal
Hazard
AMiAi|kr
2-CUenpktMl
4.2B-03
4.2E-03
0.0%
4.4MJDT (p,p'-)
2.4E-01
2.4E-01
0.3%
Aldna
1.7B-04
9.7E-02
9.7E-02
0.1%
alpka-CUoidaaa
_
3.6E-02
3.6E-02
0.0%
Atssaic
--
5.9E-04
5.5B-02
5.JE-02
0.1%
Atnzia*
1.4B-04
1.4E-04
0.0%
Cklordua
~
S.9B-02
S.9E-02
0.1%
Oieldria
2.0B-03
3.9E-01
3.9E-01
0.5%
Di-a-butytpklkalaU
1.0E-04
1.0E-04
0.0%
pnaa-BiaMM fcmacfclorida (g-BHC; Liadaae)
7.6E-0J
7.6E-0S
0.0%
fmaaa CMotdaaa
4.1E-02
4.1E-02
0.0%
PoaUcUorapknol (POP)
~
1.7B-02
1.7B-02
0.0%
TfcalHum
1.0B-02
1.0E-02
0.0%
Total PolycWorimated Bipfceayli (PCBģ)
8.6B+01
4.6E+01
98.9%
traaa-Noaacklor
~
--
1.2E-02
1.2E-02
0.0%
(Tatal)
MEHI
Jlr+M
Mfc+M
3JE41
8.7K+41
ChIM Aagler
2-CUoropkeooI
7.4B-03
7.4E-03
0.0%
4,~-DDT (ptp'-)
~
--
2.4B-01
2.4E-01
0.3%
Aldna
--
_
3.0E-04
9.9E-0?
9.9E-02
0.1%
alpfca-CMotriaaa
_
3.7E-02
3.7E-02
0.0%
Aricair
1.0E-03
S.6B-02
5.7E-02
0.1%
Atraaaa
2.4E-04
2.4E-04
0.0%
CUotdaaa
9.2E-02
9.2E-02
0.1%
Die Ulna
3.6B-03
4.0E-01
4.1E-01
0.5%
Di-a-botylphUalaU
1.8E-04
1.8E-04
0.0%
ganaaa-BaaMM haxacklood* (g-BHC; Liadaae)
gamaaa-CMoidaao
:
I
M
1.3E-04
4.2E-02
1.3E-04
4.2E-02
0.0%
0.0%
PeaUckloroptoaol (TCP)
3.0B-02
3.0G-02
0.0%
TkaUaun
1.8B-02
l.SE-02
0.0%
Total Polyckloiiaated Bipkeayl* (PCBa)
8.8E+01
8.SE+01
98.8%
tiaaa-NoaacUor
_
1.3E-02
1.3E-02
0.0%
MM*
MKHI
C.1V42
MM1
SJK+Ģ1
Pa(Ģ 8 of 8
-------
Table D-10. Summary of Chemical- and Pathway- Specific Noncanccr Hazards, Central Tendency Exposure Scenario, Lower Ottawa River HHRA
Dermal Contact %
Iagaattaa ģf Dtnul Caatact Iagotlaa *f witk Sarlac* Flih Exp* rare Tatal
Ckaarical af Iatarett SĢ41atģ> with Sadtawat Smrfaca Watar Water Ctmaflln Pathway! Tatal Hazard
SefBent 1 (RM 0 to <3 J)
AM RtcniUr
2-CkJoropheool
--
1.8E-04
2.6E-03
2.8E-03
13.1%
Atdria
2.1E-05
5.SE-05
1.2E-04
S.5E-0S
...
2.8E-04
1.3 V.
Anaaic
9.SE-04
1.1E-03
2.2E-04
1.2E-04
2.4E-03
11.IV.
Atnziac
_
S.1E-06
2.7B-0S
~
3.5E-05
0.2V.
bte(2-EttiyttteĢy()phlhalatB
3.3E-06
2.4E-0J
2.8E-05
0.1%
Dieldiia
2.4E-05
6.8E-0S
1.6E-04
1.1E-03
...
1.4E-03
6.4%
Di-a-butylpktkalate
1.9E-06
1.4E-05
...
1.6E-05
0.1%
gamma-Benzene kexacUoride (g-BHC; Li
adaae)
1.1B-05
3.6E-05
4.8E-05
0.2%
Haptacklor
6.5E-06
2.2E-05
...
2.8E-05
0.1%
Heptacklor epoxide
6.0E-05
1.2E-04
...
1.8E-04
0.8%
PCB Arodor 1016
7.7E-06
7.2E-06
_
...
l.SE-05
0.1%
KB Aioelot 1254
3.0E-05
2.SE-0S
--
5.9E-05
0.3%
Peatackloropkaaol (PCP)
4.0E-05
5.7E-03
S.8E-03
27.0%
ThalBam
2.9E-03
2.7E-03
1.1E-03
1.7E-03
...
8.4E-03
39.2%
(T.UI)
4JM3
4.1E-43
1.9E-43
1.114]
ME+M
2.1E-92
Child Racreater
2-CUoropkeaol
--
7.9E-04
5.SE-03
~
6.5E-03
7.0%
Aldria
2.6E-04
1.6E-04
5.3E-04
1.9E-04
1.1E-03
1.2%
Anaaic
1.2E-02
3.0E-03
9.4E-04
2.JB-04
1.6E-02
17.3%
Atrcaae
3.5E-05
5.9E-05
9.5E-05
0.1%
bis(2-EtTyttwxy1)phVMteto
4.0E-05
6.7B-05
1.1E-04
0.1%
Dietdna
3.0E-04
1.9E-04
7.0B-04
2.5B-03
3.6E-03
3.9%
Di-a-bat]rlpktkalate
S.4B-06
3.0B-05
3.9E-05
0.0%
fauaua-Biareai kexacUoride (j-BHC; Lii
idaaa)
_
5.0B-05
S.OE-05
1.3E-04
0.1%
Haptacklor
~
2.9E-05
4.SE-05
_
7.6B-05
0.1%
Haptacklor epoxide
7.4E-04
3.2E-04
1.1E-03
1.1%
KB Aiodor 1016
9.5E-05
2.0E-05
_
1.1B-04
0.1%
KB Aiodor 1254
3.7E-04
7.IB-0S
4.5E-04
0.5%
Peatackloropkaaol (KP)
-
1.IE-04
1.3E-02
1JE-02
13.6%
Tkalbum
3.5E-02
7.4E-03
5.0E-03
3.7E-03
5.1E-02
54.1%
fT*.1>
4JK-02
1.1M2
UU3
MI41
ME+M
MM1
faction
-------
Table D-10. Suuuiy of Chemical- aad Pathway- Specific Noacaaeer Hazard*, Ceatral Teadency Expoaare Scenario, Lower Ottawa River HHRA
Ibhiq
i Pathway
Doraal Coatact
%of
Iagoatloa of
Dermal Coatact
Iagoatloa of
with Sarfaco
Flfh
Eiponrc
Total
Ckonlcal tf Iutmt
Sodant
with SHtaoil
Sarfaco Wator
Wator
CoataaipUoa
Pathway* Total
Hazard
A4ah Aagtar
2-CUonpkeaol
_
3.0B-02
3.0E-02
0.1%
4,4*-DDT (pj)'-)
~
4.0E-02
4.0E-02
0.1%
AMria
_
9.6E-04
1.7E-02
1.SB-Q2
0.1%
atpka-CUofdaaa
3.IE-03
3.8E-03
0.0%
Arwir
1.3E-03
1.7E-02
l.SE-02
o.iy.
Atiaria*
3.0E-04
3.0E-04
0.0%
CUordu*
3.3E-02
3.3E-02
0.1%
DMdria
1.3E-02
4.2E-02
5.4E-02
0.2%
Di-ģ-fcatyt|>ktk*Ula
1.6E-04
1.6E-04
0.0%
punt-Bmnt kmcUoriib (j-BHC; Liadaae)
4.1E-04
4.1E-04
0.0%
guaoM-CUoidaBi
_
2.7E-02
2.7E-02
0.1%
PemUcldoropkesal (PCP)
6.5E-02
6.5E-02
0.2%
Tkittstm
_
1.9B-02
1.9E-02
0.1%
Total Polycfcloriaatod Bapkaayli (PCBt)
_
_
3.1E+01
3.1E+01
99.0%
tnat-NoaacUor
1.0E-03
1.0E-03
0.0%
(Total)
MI+M
Mft+M
MM!
lJE-tl
MM1
3.1E+4I
CkM Aaglor
2-CUotopheaol
3.JB-02
3.JE-02
0.1%
4.4--DDT(p^-)
4.0E-02
4.0E-02
0.1%
Aldria
I.1E-03
1.7E-02
l.SE-02
0.1%
ĻIpU-CUotdut
3.7E-03
3.7E-03
0.0%
Arģnaic
1.5B-03
1.7E-02
1.9E-02
0.1%
Atiaziao
_
3.6E-04
3.6E-04
0.0%
CUonluM
3.3E-02
3.3E-02
0.1%
Dieldria
1.5E-02
4.1E-02
5.6E-02
0.2%
Di-a-fewtylpklfcalaU
t.tE-04
l.SE-04
0.0%
gMnnia-BMģae WtwĢUo(i4ģ (g-BHC; Liaidaat)
4.IB-04
4.8E-04
0.0%
(ĻniuKCUocdiw
2.7E-02
2.7E-02
0.1%
PoatacWoraphoaol (KJ)
7.JB-02
7.JE-02
0.2%
TkalKni
~
2.2E-02
2.2E-02
0.1%
Total Polyckloriaated Bifknyb (PCB*)
~
3.0B+01
3.0B+O1
98.9%
tiaas-Noaachlor
--
1.0E-03
1.0E-03
0.0%
(Total)
.B+M
MM!
MEtM
1A41
X1M1
3.1E+41
100.0%
PĢ|e 2 of S
-------
Table D-1Q. Suaniiy of Chentcal- nd Pathway- Specific Noncancer Hazard*, Central Tendency Expoanre Scenario, Lower Ottawa River HHRA
Eatfirt rĢtfcwiT
Dermal Caatact % ģf
Iipitln af Dtnaal Caatact Iagcatiaa ģf with Sarfacc Flffc Exporare Total
Cfcaarical tflahml Sedlweat with Stflawt Sarfaca Water WatĢr Cģģwptlģa Pathway! fatal Hazard
Segment 2 (RM 3.2 to <4.9)
AMI Recreatar
2-CUoropbeaol
3.IE-OS
4.5E-04
4.9E-04
3.4%
Akhia
4.7E-0S
1.3E-04
2.6E-05
l.SE-05
2.2E-04
1.6 V.
Amaic
1.2E-03
1.3E-03
4.0E-04
2. IE-04
~
3.1E-03
21.7%
Atnziae
...
4.5B-06
l.SE-05
1.9E-05
0.1%
bis(2-Etiythaxyl)phthalate
1.7E-05
1.3E-04
_
1.4E-04
1.0%
OMdria
1.9E-05
S.3E-05
3.1E-05
2.2E-04
3.2E-04
2.3%
Di-a-butylphtkalata
1.6E-06
1. IE-OS
1.3E-0S
0.1%
gaouaa-Bcazaaa haxacMoridc (g-BHC; LixUns)
2.6E-06
S.3E-06
1.IE-OS
0.1%
HaptacUor
1.6E-06
5.3E-06
6.SE-06
0.0%
HaptacUor epoxide
2.0E44
3.IE-04
~
S.7E-04
4.0%
PCB Aiodor 1016
1.5B-04
1.4E-04
3.0E-04
2.1%
PCB Arodor 1254
7.6E45
7.1E45
1.5E-04
1.0%
Peatachloropkeaol (TCP)
~
1.3E-0S
1.9E43
1.9E-03
13.1%
TWbam
2.7E-03
2.SE-43
7.5E-04
1.1E-03
_
7.1E-03
49.5%
(Tatal)
4.4E-#3
4.7E-43
1.3EĢ3
3JE-t3
1.4E-42
Cklld Recreatar
2-CUoropheaol
1.4E-04
9.9E-04
1.1E-03
#REF!
Aldm
5.SE-04
3.6E-04
1.1B-04
4.0E-05
1.1E-03
#REF!
Amaic
1.5E-02
3.6E-03
1.7E-03
4.7E-44
2.0E-02
#REF!
AtraziM
_
2.0E-0S
3.3B-0S
5.2E-05
#REF!
biĢ(2-Etiytwxy<)pt)thaMģ
2.1E-04
3.5E-04
5.6E-04
#REFI
DMdria
2.3E-04
1.4E-04
1.4E-04
4.SE-04
9.9E-04
#REF!
Di-a-bwlylpht>alatn
6. SB-06
2.5E-05
3.2E-05
#REF!
|li Duatiaii kaxackloride (g-BHC; Li
adaw)
6.SE-06
l.SE-05
2.5E-05
#REF!
HaptacUor
5.7E-0S
1.2E-05
--
6.9E-05
#REF!
BaptacMac apcaada
2.4E-03
1.0B43
_
3.4E-03
#REF!
PCB Aroclor 1016
1.9E-03
3.9E-04
~
2.3E-03
*REF1
PCB Arodor 1254
9.3E-04
1.9E-04
_
1.1E-03
#REF1
PeatacMomplnnol (PCf)
(QtBFI
#REFI
5.7B-05
4.1E-03
#REFt
#REFI
Tfcattaoa
3.3E-02
7.0B-03
3.3B-03
2.4E-03
4.6E-02
#REF1
fTotal)
mat
IBB!
5.5Z-43
litn
MMt
MKF1
Fa* J of S
-------
Table D-10. Suuwry of Chenical- aad Pathway- Specific Noacaacer Hazard*, Central Tcadeacy Expoaare Scenario, Lower Ottawa River HHRA
tlMtPI
I PĢthwr
Dorsal Caatact
%of
Iagcatloa of
Dcnaal Coatact
Iagcatloa of
wilk Sarfacc
rub
Exfow*
Total
Ctcal<(l if Iatcrvit
8ĢOanl
wtth Idlatil
Surface Wator
Water
Coamaptlaa
Pathway* Total
Hazard
AM Aaglor
2-CklonpkiMl
3.2E-03
3.2E-03
0.0%
4.4--DDT (p,p'-)
l.SE-02
l.SE-02
0.1%
Aldna
1.3E-04
1.7E-02
1.7E-02
0.1K
Upkģ-CUordua
1.0B-03
1.0E-03
0.0%
Ar**ic
_
1.5E-03
1.5E-02
1.7E-02
0.1%
Atnziae
~
1.1B-04
1.1E-04
0.0%
CUordsae
1.3E-02
1.3E-02
0.1%
Dieidria
l.fiE-03
1.1E-02
1.2E-02
0.1%
Di-tMylpUilito
~
t.OB-OS
*.0E-05
0.0%
tanmo-Boazeae htxacUorid* (g-BHC; Liadaao)
5.9E-05
5.9E-0J
0.0%
(aaamt-CUotdaaa
1.3E-02
1.3E-02
0.1%
Poatachloropkoaol (PCP)
_
1.3B-02
1.3E-02
0.1%
Tfcalbam
~
7.SE-03
7.8E-03
o!i%
Total PolycUoriaatod Diphģayb (PCB*)
~
1.5E+01
l.SE+01
99.2%
tnuu-NoaacUor
_
1.0E-03
1.0E-03
0.0%
(Total)
MKM
ME+M
MMI
14141
Child AagUr
2-CMorapheaol
3.7B-03
3.7E-03
0.0%
4.4MJDT
l.SE-02
l.SE-02
0.1%
Aldria
1.5E-04
1.7B-02
1.7E-02
0.1%
alpha-CUoidue
1.0E-03
1.0E-03
0.0%
Axaaaic
1.IE-03
l.JE-02
1.7E42
0.1%
Abazia*
1.2E-04
9.7E-04
1.1E-03
0.0%
Cfcloniaae
~
O.OE+OO
0.0%
Dieidria
_
l.tE-03
1.1E-02
1.2E-02
0.1%
Di-i-bntyip Mkil<Ģ
9.4E-0S
9.4E-0J
0.0%
piiam D*ar*ģ* hwarMoriito (g-BHC; Liadaae)
|ģnaiia rUiinliai
6.SE-05
1.3E-02
6.IE-05
1.3E-02
0.0%
0.1%
fntacUonpkwol (Kf)
1.5E-02
l.SE-02
0.1%
Tkaffiam
~
_
~
9.0E-03
9.0E-03
0.1%
Tola) Pwlychloriaatod Btphrayls (PCB*)
1.5E+01
1.5E+01
99.3%
tzmas-Noaacklor
1.0E-03
1.0E-03
0.0%
(Total)
MEĢM
jNE+M
)JM1
liMl
iSMl
Pip 4 of s
-------
Table D-I9. Summary of Ckenical- and Pathway- Specific Noncancer Hazarda, Central Tendency Expomic Scenario, Lower Ottawa River HHRA
Era,rare Pathway
Dermal Ceatact % of
Iagettiea ef Deraaal Ceatact Iagesttea ģf with Surface Flih Experare Tetal
Owlctl ef laterwl Sedlweat wtth Sedlģeat Sarface WaUr Water CģaĢaaiptiĢa Pathway! Talal Hazard
Segment 3 (RM 4.9 to <6.5)
AMt Recreater
2-Chloniphaaol
3.1E-05
4.JE-04
4.9E-04
1.3%
Aidria
5.6E-05
1.6E-04
2.6E-0S
1.SE-0S
2.6E-04
0.7 %
Aneaic
9.5E-04
1.0E-03
1.2E-04
6.4B-05
2.2E-03
5.9%
AtaBM
4.SE-06
1.5E-05
1.9E-05
0.1%
bh<2-ECiylhexy()ph1halats
3.4E-04
2.5E-03
...
2.9E-03
7.8%
Dialdria
1. IE-OS
3.0E-0S
3.1E-05
2.2E-04
2.9E-04
0.8%
Di-a-fcotylplithaUU
1.6E-06
1.1E-05
1.3E-05
0.0%
gamma-Bcazeae hexacUoride (g-BHC; Lindane)
2.6E-06
8.3E-06
1.IE-OS
0.0%
HeptacUor
...
1.6E-06
S.3E-06
6.8E-06
0.0%
HeptacUor epoxide
9.6E-0S
1.9E-04
...
2.SE-04
0.8%
PCB Aroclor 1016
1.1E-02
1.0E-02
2.1E-02
57.5%
PCB Aroclor 1254
7.5E-04
7.0E-04
...
1.5E-03
3.9%
PeatacUoropkenol (POP)
1.3E-05
1.9E-03
1.9E-03
5.1%
Tkanium
2.2E-03
2.0E-03
7.5E-04
1.1E-03
6.0E-03
16.2%
(Teal)
15M2
1.7E-42
)JM4
3JE-M
MEfM
3.7E-92
Child Recreater
2-Cfcloropbeaol
1.4E-04
9.9E-04
1.1E-03
#REF!
Aidria
6.9E-04
4.3E-04
1.1E-04
4.0E-05
1.3E-03
#REFI
Aneaic
1.2E-02
2.9E-03
5.3E-04
1.4E-04
1.5E-02
#REF!
Atnziae
~
2.0E-05
3.3E-05
5.2E-0S
#REF1
bia{2-Ethytwxyi)phVwM8
4.2E-03
7.0E-03
1.1E-02
#REFI
Dialdria
1.3E-04
8.2E-05
1.4E-04
4.8E-04
S.3E-04
#REF1
Di-a-fcotylphthalate
6.SE-06
2.SE-05
3.2E-05
#REF!
gģnaaa Tluamaii hexackloride (g-BHC; Iiadaae)
1.1E-05
1.8E-0S
3.0E-05
#REF1
HeptacUor
_
6.SE-06
1.2E-05
1.8E-0S
#REF!
HeptacUor epoxide
1.2E-03
5.2E-04
_
1.7E-03
#REF1
PCB Aroclor 1016
1.4E-01
2.8E-02
1.6E-01
ĢREF!
PCB Arodor 1254
9.2E-03
1.9E-03
1.1E-02
#REF1
PeatacUoropkeaol (PCP)
ĢREFI
WtBFt
S.7E-0S
4.1E-03
MtEFl
MtEFl
Tkaffimn
2.6E-02
5.5E-03
3.3E-03
2.4E-03
3.8E-02
#REFI
(TotaD
Ģrt
MR
4JU1
8JM3
t.tKfM
mm
Pap Soft
-------
Table D-l#. Saauwuy of Ckeaical- ud Pathway- Specific Noacaacer Hazard*, Central Teadeacy Expoaare Scenario, Lower Ottawa River HHRA
bumMm
DothI Coatact
% (
IagattUa of
Dctmal Caataet
IigMthi Ģf
witk Sarfacc
Fish
Expoiare
Total
CIibImI of IaUroit
ItdlBMt
with SiObiiI
Suftct Water
Watar
CunaytlH
Pathway* Total
Hazard
AMt Aagkr
2-Chlotophcaol
3.2B-03
3.2E-03
0.0%
4,4-DDT (p*1-)
S.5B-03
8.5E-03
o.o%
Akhia
1.3E-04
4.0E-02
4.1E-02
0.1%
Ipha-CMotdtao
1.2E-03
1.2E-03
o.o%
Ambc
_
4.6B-04
9.4E-03
9.SE-03
0.0%
Atnziae
_
1.1B-04
~
1.1E-04
0.0%
CUoidaao
_
_
4.4E-02
4.4E-02
0.1%
Die tibia
--
1.6B-03
1.0E-02
1.2E-02
0.0%
Di-a-fcutytpkUalats
t.OE-OS
S.0E-05
0.0%
Ļaaama-BMBHM hncachlorid* (g-BHC; Liadano)
5.9E-05
5.9E-05
0.0%
PIMM ChlorilM
3.3E-02
3.3E-02
0.1%
Poatachlocopfcoaol (PCP)
1.3E-02
1.3E-02
0.0%
TkaUina
_
7.SE-03
7.SE-03
0.0%
Total FolycUoiiuUd BipkemyU (PCBģ)
~
3.0E+O1
3.0E+O1
99.4%
tiaaģ-NoaacMor
--
1.0E-03
1.0E-03
0.0%
(TMil)
MBM
ME+M
MM*
1.7142
1.IM1
CklM Aagler
2-CUonfktMl
3.7E-03
3.7E-03
0.0%
4,4--DDT(p^'-)
_
S.SB-03
S.5E-03
0.0%
Akfaia
~
~
1.5E-04
4.0E-02
4.0E-02
0.1%
alpka-CUordaac
1.2E-03
1.2E-03
0.0%
Arnaic
_
5.3E-04
9.3B-03
9.SE-03
0.0%
Atnzns
_
1.2E-04
1.2E-04
0.0%
Chlocdase
_
4.4E-02
4.4E-02
0.1%
Dialdoa
_
l.tB-03
1.0E-02
1.2E-02
0.0%
Di-a-tatytpIUiaUU
9.4E-0J
9.4E-05
0.0%
pat-Diiaiii haxachlorida (g-BHC; Liadaat)
6.IE-05
6.SE-0S
0.0%
flĢnn fllmhii
--
3.2E-02
3.2E-02
0.1%
FĢatģrMocoykol (PCT)
Tkaffinm
1
mmm
1.5E-02
9.0B-03
1.5E-02
9.0E-03
0.1%
0.0%
Total Potychlocaatad Bipkeaylj (FCBi)
_
3.0E+01
3.0E+01
99.4%
tnaa-Noaacklot
_
1.0E-03
1.0E-03
0.0%
(T-tol)
MMI
IJtHI
MMI
3.1K-C2
MEW
3JB+4I
Pago 6 of t
-------
Table D-10. Summary of Chemical- and Pathway- Specific Noncancer Hazardi, Ceatral Tendency Expoanre Scenario, Lower Ottawa River HHRA
Iiwmfrttwn
Denaal Caatact /. 0f
Iageitlaa *f Dcraul Caatact Iagaatiaa af wltfc Sarfaca Fifh Exp* rare Tatal
Chearfcal ģflģ<ĢrtĢl SĢdlwĢat with Sedlmaat Sarfacc Water Water Caaiamptlaa Pathwayt Total Haiard
Segnent 4 (RM 6.5 to 8 J)
AM Racreatar
2-CMoropkeool
3. IE-OS
4.5E-04
...
4.9E-04
3.7%
Aldna
3.SE-06
1.1E-05
2.6E-0S
1.8E-05
...
S.9E-0S
0.4V.
Amak
S.SB-04
9.6E-04
1.2E-04
6.4E-0S
2.0E-03
15.2V,
Atraaaa
4.5E-06
1.5E-05
...
1.9E-0S
0.1%
faia(24EViylhaxy<)pMhalata
1.2E-0S
8.5E-0S
~
9.7E-0S
0.7%
DMdria
4.4E-06
1.2E-0S
3.IE-OS
2.2E-04
...
2.7E-04
2.0%
Di-a-butylphtkalaU
1.6E-06
1.IE-OS
1.3E-0S
0.1%
paana-BĢKģaĢ kexackloride (g-BHC; Lindane)
2.6E-06
8.3E-06
1.IE-OS
0.1%
Heptachlor
1.6E-06
S.3E-06
...
6.8E-06
0.1%
Heptachlor epoxide
1.3E-05
2.5E-05
3.8E-0S
0.3%
KB Aiodor 1016
J.tE-04
S.SE-04
~
~
1.1E-03
8.5%
PCB Aiodor 1254
1.5E-03
1.4E-03
2.9E-03
21.8%
Pcatachloropkcaol (POP)
1.3E-0S
1.9E-03
...
1.9E-03
14.1%
TfcalHam
1.3E-03
1.2E-03
7.SE-04
1.1E-03
4.4E-03
32.9%
43E-C3
4.3E-43
U144
31M3
MMt
1JE-02
CUM Recreatar
2-CMoroplteaol
1.4E-04
9.9E-04
1.1E-03
#REF!
Aldiis
4.7E-05
2.9E-05
1.1E-04
4.0E-05
2.3E-04
#REF!
Ancaic
1.1E-02
2.6E-03
5.3E-04
1.4E-04
1.4E-02
#REF!
Atraaae
2.0E-05
3.3E-05
5.2E-05
#REF!
bis(2-E*iy4hsxy1)ptitialsiB
1.4E-04
2.3E-04
_
3.8E-04
#REFI
DMdna
S.4E-05
3.4E-05
1.4E-04
4.8E-04
7.1E-04
#REF!
Di-a-batytpkUalatc
6.8E-06
2.5E-05
3.2E-05
#REF1
gimiai Baas* haxackloada (g-BHC; Liadue)
1.1E-05
l.SE-05
3.0E-05
#REFI
Heptachlor
6.8E-06
1.2E-05
1.8E-05
#REFI
Baptaohlor epoxide
1.6E-04
7.0E-0S
--
2.3E-04
#REF!
PCB Aiodor 1016
7.2E-03
1.5E-03
8.7E-03
#REFI
FCB Aiodor 1254
1.8E-02
3.9E-03
_
_
2.2E-02
DfREFl
Peatachlorapheaol (TCP)
#REFI
*REF!
5.7E-05
4.1E-03
ĢREF1
#REF!
Tkatbum
1.6E-02
3.4E-03
3.3E-03
2.4E-03
2.SE-02
#REFI
fTatal)
Ģ8U1
NUffl
4JU3
UŖ43
I.IMI
ĢREH
Pag* 7 of S
-------
Table D-10. Svmmary of Chemical- ud Pathway- Specific Noacaacer Hazard*, Ceatral Tendency Expoaare Scemario, Lower Ottawa River HHRA
Zotflultikxur
Dcrautl Caatact
~/.I
Iagcittaa af
Danaal Caatact
Iagcatioa af
with Sarfaca
Hah
Exparare
Tatal
Cheats al af Iatercit
Scdiatcat
with MiaMat
Sarfaca Water
Watar
Caaiaaiptlaa
Pathway* Total
Hazard
AMt Aaglar
2-Chloropheaol
3.2E-03
3.2E-03
0.0%
4,4*-DDT (pj)1-)
--
4.2E-02
4.2E-02
0.3%
Aldna
~
1.3E-04
1.7E-02
1.7E-02
0.1%
aiptu-CUoiduui
6.4E-03
6.4E-03
0.0%
Ancnic
--
4.6E-04
9.8B-03
1.0B-02
0.1%
Atraziaa
1.1B-04
1.1E-04
0.0%
Chloidaaa
--
~
_
1.6E-02
1.6E-02
0.1%
Dieldna
_
1.6E-0J
7.0E-02
7.1E-02
0.5%
Di-a-butylphthaiata
I.0B-05
t.0E-05
0.0%
gamma-Bcnzcae kcxacklorida (g-BHC; Lindane)
J.9E-05
5.9E-05
0.0%
ganuna-CWordaae
7.3B-03
7.3E-03
0.0%
Paatachlofopkeaol (POP)
1.3E-02
1.3E-02
0.1%
Thallium
7.IE-03
7.8E-03
0.1%
Total Polychloriaaiad Biphenyli (PCBi)
_
~
1.5E+01
1.5E+01
98.7%
tnaĢ-Noaachlor
~
_
--
2.2E-03
2.2E-03
0.0%
(Tatal)
.ĻKm
MMt
MKfM
1.7141
liltfl
15M1
Child Aagler
2-CUorophaaol
_
3.7E-03
3.7E-03
0.0%
^~-DDTCp#1-)
4.2E-02
4.2E-02
0.3%
Aldria
l.JE-04
1.7E-02
1.7E-02
0.1%
alpka-Chlonlaa*
6.3E-03
6.3E-03
0.0%
Annie
5.3E-04
9.7B-03
1.0B-02
0.1%
Atraziae
_
1.2E-04
1.2B-04
0.0%
Chloidaaa
~
1.6E-02
1.6E-02
0.1%
Dieldria
~
l.IE-03
6.9E-02
7.1E-02
0.5%
Di-n-butylph)hĢlate
9.4E-0S
9.4E-0J
0.0%
gamma-Benzene bexacUoride (g-BHC; Liadaaa)
--
6.SE-05
6.8E-05
0.0%
gunma-Cklordaoe
7.2E-03
7.2E-03
0.0%
PeaUckloropkeaol (PCP)
1.5E-02
1.5E-02
0.1%
Tkallium
--
9.0E-03
9.0E-03
0.1%
Total Polychloriaatad Bipkenyli (PCBĢ)
_
_
1.5E+01
1.5E+01
98.7%
tnaa-Nonacklor
2.2E-03
2.2E-03
0.0%
(Tatal)
MB+M
JE+M
3.1K-ģ2
1.5E441
ISM1
Page I of S
-------
APPENDIX E
PCB Hazard Calculations for Fish Consumption Categories
Lower Ottawa River Human Health Risk Assessment
Printed on recycled paper
-------
216
113
232
117
67
32
66
33
13
6.1
12
6J
6.2
3.0
6.1
3.1
TabteE-L rCB Hazard <
CkwBkal
C n
(Ļg/k|> i IS (xW i (ĻMm)
x Cf (fcpfr) / - Ct/fct-4)
HfUUM
RfD
(Ļt/kt-d)
Total FCBo
Total FCBi
Total KB*
Total KBo
5.190
2.127
3.103
2.921
140
MO
14*
140
0.001
0.001
0.001
0.001
70
70
70
70
Total KBi
Total KB*
Total KBo
Total fCBo
Total KBi
Total KS*
Total KB*
Total KB*
5.S90
2.027
5.(05
2.92!
5.190
2.127
S.M5
2.921
40
40
7J
7J
IS
1J
0.001
0.001
0.001
0.001
0.001
O.OOl
0.001
0.001
70
70
70
70
70
70
70
70
Total KB*
Total KB*
Total KBi
Total KB*
5.090
2.127
5.103
2Mt
3.7
XI
XI
3.7
0.001
0.001
0.001
0.001
70
70
70
70
1.2B-02
5.7B-03
1.2B-02
5.9E-03
3.4B-03
1.
------- |