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EPA-454/R-07-005
February 2007
2005 Urban Air Toxics Monitoring Program (UATMP) - Hexavalent Chromium
Prepared By:
Eastern Research Group, Inc.
Research Triangle Park, North Carolina
Prepared for:
Margaret Dougherty and Mike Jones
Office of Air Quality Planning and Standards
Research Triangle Park, NC 27711
Contract No. 68-D-03-049
Delivery Orders 03 and 04
U.S. Environmental Protection Agency
Office of Air Quality Planning and Standards
Emissions, Monitoring and Analysis Division
Research Triangle Park, NC 27711
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2005 Urban Air Toxics
Monitoring Program (UATMP)
Hexavalent Chromium
Final Report
EPA Contract No. 68-D-03-049
Delivery Order 03
Delivery Order 04
Prepared for:
Margaret Dougherty and Mike Jones
Office of Air Quality Planning and Standards
U.S. Environmental Protection Agency
Research Triangle Park, NC 27711
Prepared by:
Eastern Research Group, Inc.
1600 Perimeter Park
Morrisville, NC 27560
February 2007
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DISCLAIMER
Through its Office of Air Quality Planning and Standards, the U.S. Environmental Protection
Agency funded and managed the research described in this report under EPA Contract
No. 68-D-03-049 to Eastern Research Group, Inc. This report has been subjected to the
Agency=s peer and administrative review and has been approved for publication as an EPA
document. Mention of trade names or commercial products in this report does not constitute
endorsement or recommendation for their use.
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TABLE OF CONTENTS
age
List of Figures vi
List of Tables ix
List of Acronyms x
1.0 Introduction 1-1
2.0 Overview of the 2005 Hexavalent Chromium Monitoring Effort 2-1
2.1 Overview of Chromium Species 2-1
2.2 Sampling and Analytical Method 2-2
2.3 Monitoring Locations 2-3
2.4 Sampling Schedules 2-4
2.5 Completeness 2-5
3.0 Summary of the 2005 Hexavalent Chromium Data 3-1
3.1 Statistical Characterization 3-1
3.1.1 Central Tendency 3-1
3.1.2 Data Distribution 3-3
3.2 Risk Characterization 3-4
3.2.1 Risk Screening Approach 3-4
3.2.2 Non-Chronic Risk 3-5
3.2.3 Chronic Risk 3-5
3.2.4 NATA Comparison 3-6
4.0 Meteorological and Spatial Analysis 4-1
4.1 Meteorological Analysis 4-1
4.1.1 Averages 4-1
4.1.2 Wind Roses 4-2
4.1.3 Composite Back Trajectories 4-2
4.1.4 Pearson Correlations 4-5
4.1.4.1 Average Maximum and Average Temperature 4-6
4.1.4.2 Moisture 4-6
4.1.5 Pollution Roses 4-7
4.2 Spatial Analysis 4-8
iii
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TABLE OF CONTENTS CONTINUED
Page
5.0 Data Quality 5-1
5.1 Precision 5-1
5.1.1 Analytical Precision 5-2
5.1.2 Sampling and Analytical Precision 5-3
5.2 Accuracy 5-4
6.0 Conclusions and Recommendations 6-1
6.1 Conclusions 6-1
6.2 Data Quality 6-2
6.3 Recommendations 6-2
7.0 References 7-1
IV
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List of Appendices
Appendix A
Appendix B
Appendix C
Appendix D
Appendix E
AIRS Site Descriptions for the 2005 Hexavalent Chromium Monitoring
Stations A-1
2005 Invalid Hexavalent Chromium Samples B-l
2005 Hexavalent Chromium Sampling Results C-l
2005 Hexavalent Chromium Sampling Statistics D-l
Additional Monitoring Site Information E-l
E.I BOMA E-l
E.2 BTUT E-l
E.3 BURVT E-2
E.4 CHSC E-2
E.5 DEMI E-3
E.6 ETAL E-3
E.7 GPCO E-3
E.8 GPMS E-4
E.9 HAKY E-4
E.10 LAOR E-5
E.ll MVWI E-5
E.12NBAL E-6
E.13 NBIL E-6
E.14 PRRI E-7
E.15 PVAL E-7
E.16 S4MO E-7
E.17 SDGA E-8
E.18 SEWA E-8
E.19 SIAL E-9
E.20 SYFL E-9
E.21 UNVT E-9
E.22 WADC E-10
E.23 WETX E-10
Appendix F
Meteorological and Spatial Analysis Products F-l
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LIST OF FIGURES
2-1 Hexavalent Chromium Monitoring Site Locations 2-6
3-1 Comparison of Average Seasonal Hexavalent Chromium Concentrations 3-8
3-2 Coefficient of Variation Analysis Across 23 Sites 3-9
E-l Boston, Massachusetts Monitoring Site (BOMA) E-ll
E-2 Facilities Located within 10 Miles of BOMA E-12
E-3 Bountiful, Utah Monitoring Site (BTUT) E-13
E-4 Facilities Located within 10 Miles of BTUT E-14
E-5 Burlington, Vermont Monitoring Site (BURVT) E-15
E-6 Facilities Located within 10 Miles of the Burlington Monitoring Sites (BURVT and
UNVT) E-16
E-7 Chesterfield, South Carolina Monitoring Site (CHSC) E-17
E-8 Facilities Located within 10 Miles of CHSC E-18
E-9 Detroit, Michigan Monitoring Site (DEMI) E-19
E-10 Facilities Located within 10 Miles of DEMI E-20
E-ll East Thomas Monitoring Site in Birmingham, Alabama (ETAL) E-21
E-12 Facilities Located within 10 Miles of the Birmingham Monitoring Sites (ETAL, NBAL, and
SIAL) E-22
E-13 Grand Junction, Colorado Monitoring Site (GPCO) E-23
E-14 Facilities Located within 10 Miles of GPCO E-24
E-15 Gulfport, Mississippi Monitoring Site (GPMS) E-25
E-16 Facilities Located within 10 Miles of GPMS E-26
E-17 Hazard, Kentucky Monitoring Site (HAKY) E-27
E-18 Facilities Located within 10 Miles of HAKY E-28
E-19 La Grande, Oregon Monitoring Site (LAOR) E-29
E-20 Facilities Located within 10 Miles of LAOR E-30
E-21 Mayville, Wisconsin Monitoring Site (MVWI) E-31
E-22 Facilities Located within 10 Miles of MVWI E-32
E-23 North Birmingham, Alabama Monitoring Site (NBAL) E-33
E-24 Northbrook, Illinois Monitoring Site (NBIL) E-34
E-25 Facilities Located within 10 Miles of NBIL E-35
E-26 Providence, Rhode Island Monitoring Site (PRRI) E-36
E-27 Facilities Located within 10 Miles of PRRI E-37
E-28 Providence, Alabama Monitoring Site (PVAL) E-38
E-29 Facilities Located within 10 Miles of PVAL E-39
E-30 St. Louis, Missouri Monitoring Site (S4MO) E-40
E-31 Facilities Located within 10 Miles of S4MO E-41
E-32 Decatur, Georgia Monitoring Site (SDGA) E-42
E-33 Facilities Located within 10 Miles of SDGA E-43
E-34 Seattle, Washington Monitoring Site (SEWA) E-44
E-35 Facilities Located within 10 Miles of SEW A E-45
E-36 Sloth Industries Monitoring Site in Birmingham, Alabama (SIAL) E-46
vi
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LIST OF FIGURES CONTINUED
E-37 Sydney Monitoring Site in Plant City, Florida (SYFL) E-47
E-38 Facilities Located within 10 Miles of SYFL E-48
E-39 Underbill, Vermont Monitoring Site (UNVT) E-49
E-40 Washington, D.C. Monitoring Site (WADC) E-50
E-41 Facilities Located within 10 Miles of WADC E-51
E-42 Austin Texas Monitoring Site (WETX) E-52
E-43 Facilities Located within 10 Miles of WETX E-53
F-l Wind Rose of Sample Days for the BOMA Monitoring Site F-2
F-2 Wind Rose of Sample Days for the BTUT Monitoring Site F-2
F-3 Wind Rose of Sample Days for the BURVT Monitoring Site F-3
F-4 Wind Rose of Sample Days for the CHSC Monitoring Site F-3
F-5 Wind Rose of Sample Days for the DEMI Monitoring Site F-4
F-6 Wind Rose of Sample Days for the ETAL Monitoring Site F-4
F-7 Wind Rose of Sample Days for the GPCO Monitoring Site F-5
F-8 Wind Rose of Sample Days for the GPMS Monitoring Site F-5
F-9 Wind Rose of Sample Days for the HAKY Monitoring Site F-6
F-10 Wind Rose of Sample Days for the LAOR Monitoring Site F-6
F-ll Wind Rose of Sample Days for the MVWI Monitoring Site F-7
F-12 Wind Rose of Sample Days for the NBAL Monitoring Site F-7
F-13 Wind Rose of Sample Days for the NBIL Monitoring Site F-8
F-14 Wind Rose of Sample Days for the PRRI Monitoring Site F-8
F-15 Wind Rose of Sample Days for the PVAL Monitoring Site F-9
F-16 Wind Rose of Sample Days for the S4MO Monitoring Site F-9
F-17 Wind Rose of Sample Days for the SDGA Monitoring Site F-10
F-18 Wind Rose of Sample Days for the SEWA Monitoring Site F-10
F-19 Wind Rose of Sample Days for the SIAL Monitoring Site F-ll
F-20 Wind Rose of Sample Days for the SYFL Monitoring Site F-ll
F-21 Wind Rose of Sample Days for the UNVT Monitoring Site F-12
F-22 Wind Rose of Sample Days for the WADC Monitoring Site F-12
F-23 Wind Rose of Sample Days for the WETX Monitoring Site F-13
F-24 Composite Back Trajectory Map for BOMA F-14
F-25 Composite Back Trajectory Map for BTUT F-15
F-26 Composite Back Trajectory Map for BURVT F-16
F-27 Composite Back Trajectory Map for CHSC F-17
F-28 Composite Back Trajectory Map for DEMI F-18
F-29 Composite Back Trajectory Map for ETAL F-19
F-30 Composite Back Trajectory Map for GPCO F-20
F-31 Composite Back Trajectory Map for GPMS F-21
F-32 Composite Back Trajectory Map for HAKY F-22
F-33 Composite Back Trajectory Map for LAOR F-23
F-34 Composite Back Trajectory Map for MVWI F-24
F-35 Composite Back Trajectory Map for NBAL F-25
vii
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LIST OF FIGURES CONTINUED
F-36 Composite Back Trajectory Map for NBIL F-26
F-37 Composite Back Trajectory Map for PRRI F-27
F-38 Composite Back Trajectory Map for PVAL F-28
F-39 Composite Back Trajectory Map for S4MO F-29
F-40 Composite Back Trajectory Map for SDGA F-30
F-41 Composite Back Trajectory Map for SEW A F-31
F-42 Composite Back Trajectory Map for SIAL F-32
F-43 Composite Back Trajectory Map for SYFL F-33
F-44 Composite Back Trajectory Map for UNVT F-34
F-45 Composite Back Trajectory Map for WADC F-35
F-46 Composite Back Trajectory Map for WETX F-36
F-47 Hexavalent Chromium Pollution Rose for BOMA F-37
F-48 Hexavalent Chromium Pollution Rose for BTUT F-38
F-49 Hexavalent Chromium Pollution Rose for BURVT F-39
F-50 Hexavalent Chromium Pollution Rose for CHSC F-40
F-51 Hexavalent Chromium Pollution Rose for DEMI F-41
F-52 Hexavalent Chromium Pollution Rose for ETAL F-42
F-53 Hexavalent Chromium Pollution Rose for GPCO F-43
F-54 Hexavalent Chromium Pollution Rose for GPMS F-44
F-55 Hexavalent Chromium Pollution Rose for HAKY F-45
F-56 Hexavalent Chromium Pollution Rose for LAOR F-46
F-57 Hexavalent Chromium Pollution Rose for MVWI F-47
F-58 Hexavalent Chromium Pollution Rose for NBAL F-48
F-59 Hexavalent Chromium Pollution Rose for NBIL F-49
F-60 Hexavalent Chromium Pollution Rose for PRRI F-50
F-61 Hexavalent Chromium Pollution Rose for PVAL F-51
F-62 Hexavalent Chromium Pollution Rose for S4MO F-52
F-63 Hexavalent Chromium Pollution Rose for SDGA F-53
F-64 Hexavalent Chromium Pollution Rose for SEW A F-54
F-65 Hexavalent Chromium Pollution Rose for SIAL F-55
F-66 Hexavalent Chromium Pollution Rose for SYFL F-56
F-67 Hexavalent Chromium Pollution Rose for UNVT F-57
F-68 Hexavalent Chromium Pollution Rose for WADC F-58
F-69 Hexavalent Chromium Pollution Rose for WETX F-59
Vlll
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LIST OF TABLES
1-1 Organization of the 2005 Hexavalent Chromium Report 1-3
2-1 Hexavalent Chromium Toxicity Values 2-7
2-2 Text Descriptions of the 2005 Hexavalent Chromium Monitoring Sites 2-8
2-3 Site Descriptions for the 2005 Hexavalent Chromium Monitoring Sites 2-15
2-4 Sampling Schedules and Completeness 2-17
3-1 Hexavalent Chromium Central Tendency Summary 3-10
3-2 Hexavalent Chromium Statistical Distribution Summary 3-11
3 -3 Summary of Failed Screens 3-12
3-4 Summary of Intermediate Risk 3-13
3-5 Summary of Hexavalent Chromium Chronic (Lifetime) Risk 3-14
4-1 Average Meteorological Parameters for the Hexavalent Chromium Monitoring Sites ..4-10
4-2 Summary of Pearson Correlation Coefficients for Selected Meteorological Parameters and
Hexavalent Chromium 4-14
4-3 2002 Hexavalent Chromium Point Source Emissions Summary by SIC 4-15
4-4 Businesses Potentially Emitting Hexavalent Chromium by SIC in Each Monitoring County
4-19
5-1 Hexavalent Chromium Analytical Precision: IPR Determination 5-5
5-2 Hexavalent Chromium Sampling and Analytical Precision: Collocated Samples 5-6
IX
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LIST OF ACRONYMS
AQS Air Quality Subsystem (of the Aerometric Information and Retrieval System)
ATSDR Agency for Toxic Substances and Disease Registry
CARB California Air Resources Board
CFR Code of Federal Regulations
CO Carbon Monoxide
CV coefficient of variation
Cr°+ Steady-state chromium
Cr3+ Trivalent chromium
Cr6+ Hexavalent chromium
EPA U.S. Environmental Protection Agency
ERG Eastern Research Group, Inc.
GC gas chromatography
GMT Greenwich Mean Time
HAP hazardous air pollutant
HQ Hazard quotient
HYSPLIT Hybrid Single-Particle Lagrangian Integrated Trajectory
1C Ion Chromatography
IMPROVE Interagency Monitoring of Protected Visual Environments
IPR Initial Precision Recovery
IQR Interquartile range
MDL method detection limit
MRL Minimal Risk Level
MSAs Metropolitan statistical areas
NAMS National Air Monitoring Station
NATA National-scale Air Toxics Assessment
NATTS National Air Toxics Trends Station
ng/m3 nanogram per cubic meter
NEI National Emissions Inventory
NOAA National Oceanic and Atmospheric Administration
NO2 Nitrogen Dioxide
NWS National Weather Service
PAMS Photochemical Assessment Monitoring Station
PE Performance Evaluation
PM particulate matter
QAPP Quality Assurance Project Plan
RfC Reference Concentration
RH Relative Humidity
RPD relative percent difference
SIC Standard Industrial Classification
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SLAMS State and Local Air Monitoring Site
SO2 Sulfur Dioxide
SPM Single Point Monitor
UATMP Urban Air Toxics Monitoring Program
T Temperature
tpy tons per year
URE Unit Risk Estimate
VOC Volatile Organic Compound(s)
WBAN Weather Bureau/Army/Navy ID
WD Wind Direction
WS Wind Speed
Z Zulu
Monitoring Stations
BOMA Boston, Massachusetts
BTUT Bountiful, Utah
BURVT Burlington, Vermont
CHSC Chesterfield, South Carolina
ETAL East Thomas in Birmingham, Alabama
GPCO Grand Junction, Colorado
GPMS Gulfport, Mississippi
HAKY Hazard, Kentucky
LAOR La Grande, Oregon
MAWI Mayville, Wisconsin
NBAL North Birmingham, Alabama
NBIL Northbrook in Chicago, Illinois
PRRI Providence, Rhode Island
PVAL Providence, Alabama
S4MO St. Louis, Missouri (Site #4)
SDGA Decatur, Georgia
SEWA Seattle, Washington
SIAL Sloss Industries in Birmingham, Alabama
SYFL Plant City, Florida
UNVT Underbill, Vermont
WADC Washington, D.C.
WETX Webberville Road in Austin, Texas
XI
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1.0 Introduction
Air pollution in urban locations incorporates many components that originate from a wide
range of stationary, mobile, and natural emissions sources. Because some of these components
include toxic compounds known or suspected to be carcinogenic, the U.S. Environmental
Protection Agency (EPA) continues to encourage state, local, and tribal agencies to understand
and appreciate the nature and extent of potentially toxic air pollution in urban locations. To
achieve this goal, EPA sponsors the Urban Air Toxics Monitoring Program (UATMP) and the
National Air Toxic Trends Station (NATTS) network to characterize the composition and
magnitude of urban air pollution through extensive ambient air monitoring. Since the inception of
the UATMP in 1987, many environmental and health agencies have participated in the program to
assess the causes and effects of air pollution within their jurisdictions. The NATTS network,
consisting of 23 monitoring sites located in different geographical areas with varying population
densities, was designed to allow EPA to assess the spatial and temporal distribution of air toxics
and evaluate any trends that may be evident, especially whether legislation aimed at reducing air
toxics emissions have resulted in any discernable decrease in ambient concentrations. The
expected benefits of decreased ambient concentrations are reduced risk of cancer and other
adverse health effects.
This report summarizes and interprets the 2005 UATMP and NATTS hexavalent
chromium monitoring effort, and serves as a companion to the 2005 UATMP annual report (U.S.
EPA, 2007). This report includes up to 12 months of l-in-6 and l-in-12 day measurements of
ambient air quality at 22 monitoring sites in or near 19 urban/rural locations, including 14
metropolitan statistical areas (MSAs). The analysis and data interpretation in this report focuses
on hexavalent chromium data trends. In addition to the planned schedule for 2005 sampling,
additional measurements were collected in the wake of Hurricane Katrina's devastation to the
Gulf Coast in late August 2005. The results from post-Katrina hexavalent chromium sampling are
included in this report at the request of the State of Mississippi.
Hexavalent chromium is highly toxic, even at low mass concentrations and emissions.
EPA's National-scale Air Toxics Assessment (NAT A) for 1999 identified this specie of chromium
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as the driving pollutant in five of the top 10 counties for cancer risk from stationary sources (U.S.
EPA, 2006a).
To facilitate examination of the 2005 UATMP and NATTS hexavalent chromium
monitoring data, the complete set of measured concentrations is presented in the Appendix C of
this report. In addition, these data are publicly available in electronic format from EPA's Air
Quality Subsystem (AQS) at http://www.epa.gov/ttn/airs/airsaqs/.
This report is organized into seven sections and six appendices. Table 1-1 highlights the
contents of each section and appendix. All figures and tables appear at the end of their respective
sections (figures first, followed by tables) or in supporting appendices (Appendices E and F).
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Table 1-1. Organization of the 2005 Hexavalent Chromium Report
Report
Section
1
2
3
4
5
6
7
Appendix
A
Appendix
B
Appendix
C
Appendix
D
Appendix
E
Appendix
F
Section Title
Introduction
Overview of the 2005 Hexavalent
Chromium Monitoring Effort
Summary of the 2005 Hexavalent
Chromium Data
Meteorological and Spatial Analysis
Data Quality
Summary and Conclusion
References
AQS Site Information
Invalids
Raw Data
Statistical Summary of Raw Data
Additional Monitoring Site Information
Integrated Data Analysis Products
Overview of Contents
Introduces the history and scope of this report.
Provides background information on hexavalent chromium, the monitoring networks, and
the sampling and analytical methods.
Presents and discusses significant trends and relationships in the UATMP and NATTS
data, characterizes how ambient air concentrations, and associated risk, varied with
monitoring location and with time.
Characterizes the sampling data in relation to meteorological and emissions information.
Defines and discusses the concepts of precision and accuracy. Based on quantitative and
qualitative analyses, this section examines the precision and accuracy of the ambient
monitoring data.
Summarizes the most significant findings of the report.
Lists the references cited throughout the report.
Provides details about the monitoring site locations, including physical address,
geographic coordinates, traffic information, urban area, and supporting agency.
Provides information about invalidated samples.
Provides raw data results for hexavalent chromium sampling.
Provides a statistical summary of the raw data presented in Appendix C.
Includes maps of the surrounding area, emission source maps, climate data, and a text
summary for each site.
Includes wind roses, pollution roses, and back trajectories.
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2.0 Overview of the 2005 Hexavalent Chromium Monitoring Effort
In this section, background information on hexavalent chromium and its sampling method
are described. The sampling networks for 2005, sampling schedules, and evaluation of
completeness are also presented.
2.1 Overview of Chromium Species
Information on the health effects of chromium and chromium compounds were obtained
from a Public Health Statement for chromium (AT SDR, 2000a). Chromium is a naturally
occurring element found in rocks, animals, plants, soil, and in volcanic dust and gases. Chromium
is present in the environment in several different forms. The most common forms are steady-state
(Cr°+), trivalent (Cr3+), and hexavalent (Cr6+). Trivalent chromium occurs naturally in the
environment and is an essential nutrient required by the human body to promote the action of
insulin in body tissues so that sugar, protein, and fat can be used by the body. The naturally
occurring mineral chromite in the trivalent form is used as brick lining for high-temperature
industrial furnaces, for making metals and alloys, and chemical compounds. Hexavalent and
steady-state chromium are generally produced by industrial processes. No known taste or odor is
associated with chromium compounds. Metal chromium, which is the steady-state form, is a steel-
gray solid with a high melting point. It is used mainly for making steel and other alloys (mixtures
of metals). Chromium compounds, mostly in trivalent or hexavalent forms, produced by the
chemical industry are used for chrome plating, the manufacture of dyes and pigments, leather
tanning, and wood preserving. Smaller amounts are used in drilling muds, rust and corrosion
inhibitors, textiles, and toner for copying machines.
Chromium enters the air, water, and soil mostly in the trivalent and hexavalent forms as a
result of natural processes and human activities. Stainless steel welding, chemical manufacturing,
and use of compounds containing hexavalent chromium can increase hexavalent chromium levels
in air. Waste streams from electroplating can discharge hexavalent chromium. Leather tanning and
textile industries, as well as those that make dyes and pigments, can discharge both trivalent and
hexavalent chromium into waterways. The levels of both trivalent and hexavalent chromium in soil
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increase mainly from disposal of commercial products containing chromium, chromium waste
from industry, and coal ash from electric utilities.
Table 2-1 summarizes toxicity values for hexavalent chromium. Chronic exposures of
hexavalent chromium can lead to cancer effects and respiratory noncancer effects. Non-chronic
health effects may occur due to exposures on an intermediate-term (15 to 364 days).
2.2 Sampling and Analytical Method
Hexavalent chromium was sampled using an EPA-approved method based on
improvements to California Air Resources Board (CARB) Method 039. For a detailed
description of the EPA-approved method, readers should refer to the Standard Operating
Procedure for the Determination of Hexavalent Chromium in Ambient Air Analyzed by Ion
Chromatography (1C) (U.S. EPA, 2006b). Method detection limits (MDL) are experimentally
determined at the ERG analytical laboratory; the average MDL for the program was 0.016 ng/m3.
The hexavalent chromium MDL ranged from 0.012 ng/m3 (Bountiful, UT; La Grande, OR;
Providence, RI; Decatur, GA) to 0.019 ng/m3 (Dearborn Park, MI and Washington, D.C.). The
ERG MDLs are generally lower than those obtained by the original CARB method because the
analytical technique now employed is more sensitive and more volume is pulled through the filters
during sample collection. The MDLs were determined using the procedures set forth in 40 CFR
Part 136, Appendix B (U.S. EPA, 2005).
Appreciating Detection Limits
All detection limits of the analytical methods must be considered carefully when interpreting
the corresponding ambient air monitoring data. By definition, detection limits represent the
lowest concentrations at which a laboratory and its equipment have been experimentally
determined to reliably quantify concentrations of selected pollutants to a specific confidence
level. If a chemical concentration in ambient air does not exceed the method sensitivity (as
gauged by the detection limit), the analytical method might not differentiate the pollutant
from other pollutants in the sample or from the random Knoisei inherent in laboratory
analyses. Therefore, when samples contain concentrations at levels below their respective
detection limits, multiple analyses of the same sample may lead to a wide range of results,
including highly variable concentrations or kiondetect® observations. Data analysts must
exercise caution when interpreting monitoring data with many reported concentrations at
levels near or below the corresponding detection limits.
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2.3 Monitoring Locations
Although EPA sponsors the UATMP and NATTS, EPA does not dictate the location of
its monitoring sites. Rather, representatives from EPA Regions, and the state, local, and tribal
agencies that voluntarily participate in the program and contribute to the overall monitoring costs
select the monitoring locations based on specific siting criteria. Some monitors were placed near
the centers of heavily populated cities (e.g., Chicago, IL and Seattle, WA), while others were
placed in more rural settings (e.g., Chesterfield, SC and Hazard, KY).
Figure 2-1 shows the 22 urban and rural areas participating in the 2005 programs as well
as the Hurricane Katrina monitoring site in Mississippi. The site descriptions in Tables 2-2 and 2-
3 and in Appendix A provide detailed information on the surroundings near the 2005 hexavalent
chromium monitoring locations. Monitoring sites that are designated as EPA NATTS sites are
indicated by bold type in Table 2-2.
As presented in Figure 2-1, the 2005 hexavalent chromium monitoring sites are distributed
across the country. The monitoring data from these sites may indicate certain air quality trends
that are common to all urban environments, but may also show distinct geographic trends. The
statistical analyses in this report differentiate those trends that appear to be site-specific from
those that appear to be common to most urban environments.
Hexavalent chromium concentrations measured during 2005 varied significantly from
monitoring site to monitoring site. As discussed throughout this report, the proximity of the
monitoring locations to different emissions sources, especially industrial facilities, often explains
the observed spatial variations in ambient air quality. To provide a first approximation of the
contributions of stationary source emissions on ambient air quality at each site, Table 2-3 lists the
number of people living within 10 miles of each monitoring location and the hexavalent and total
chromium emissions for stationary sources residing in the monitors county, as reported to the
2002 National Emissions Inventory (NEI) (U.S. EPA, 2006c). Cook County, IL, where the
NBIL monitoring site is located, reported the highest total chromium emissions at 4.90 tons per
year (tpy). Jefferson County, AL, where four monitoring sites (ETAL, NBAL, PVAL, and SIAL)
2-3
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are located, reported the second highest chromium emissions at 2.25 tpy. These two counties
also reported the two highest emissions for hexavalent chromium (Cook County, 0.47 tpy;
Jefferson County, 0.42 tpy).
For recordkeeping and reporting purposes, each site was assigned the following:
$ A unique UATMP site code B used to track samples from the monitoring sites to
the laboratory; and
$ A unique nine-digit AQS site code B used to index monitoring results in the AQS
database.
This report often cites these codes when presenting selected monitoring results.
2.4 Sampling Schedules
Table 2-4 presents the start and end dates for each monitoring location. Most sites in the
monitoring networks started sampling in January 2005, with a few exceptions, while all sites
sampled through December. Nine sites began sampling after January 2005:
$ Decatur, GA site (SDGA) started in February 2005;
$ Mayville, WI and Washington, D.C. sites (MVWI and WADC) started in March
2005;
$ Webberville Rd. site in Austin, TX (WETX) started in June 2005;
$ Birmingham, AL sites (ETAL, NBAL, PVAL, and SIAL) started in July 2005; and
$ Gulfport, MS site (GPMS) started in October 2005.
Most of the sites employed collocated sample collection, with the exception at BTUT and
LAOR, to facilitate the determination of method precision. Collocated samples are collected
simultaneously using two independent collection systems at the same location. In cases where
monitors failed to collect valid samples on a scheduled sampling day, site operators sometimes
rescheduled samples for other days. This practice explains why some monitoring locations
periodically strayed from the l-in-6 or l-in-12 day sampling schedule.
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The l-in-6 or l-in-12 day sampling schedule permits cost-effective data collection for
trends characterization (annual-average concentrations) of toxic compounds in ambient air and
ensures that sampling days are evenly distributed among the seven days of the week to allow
weekday/weekend comparison of air quality.
2.5 Completeness
Completeness refers to the number of valid samples collected compared to the number of
samples expected from a l-in-6 or l-in-12 day sampling cycle. Monitoring programs that
consistently generate valid results have higher completeness than programs that consistently
invalidate samples. The completeness of an air monitoring program, therefore, can be a
qualitative measure of the reliability of air sampling equipment and laboratory analytical
equipment and a measure of the efficiency with which the program is managed. Appendix B
identifies samples that were invalidated and lists the specific reasons why the samples were
invalidated. Reasons for invalidation include: power failure, damage incurred during transit, and
operator error.
The UATMP and NATTS data quality objectives follow the 2005 EPA-approved Quality
Assurance Project Plan (QAPP), where 85-100 percent of samples collected at a given monitoring
station must be analyzed successfully to be considered sufficient for data trends analysis (ERG,
2005). The data in Table 2-4 shows that only one data set (from a total of 23 data sets) did not
meet this data quality objective (WETX). However, the overall completeness for the program
was 96 percent. One hundred percent completeness was achieved for three monitoring sites
(BOMA, NBAL, and SIAL).
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Figure 2-1. Hexavalent Chromium Monitoring Site Locations
eTVtlA MSA
"
to
Qgdin-Cteiirliflki (Bountiful), UT MSA
TaintM-St, Pftmburg, ri. MSA
Cf Boston, felA MSA
ife '
Providence, Rl MSA
Legend
MtToj o 1nr StaSisteal Area &ounda
-------
Table 2-1. Hexavalent Chromium Toxicity Values
Parameter
Risk Screening Value
Acute Minimal Risk Level
Intermediate Minimal Risk Level
Cancer Unit Risk Estimate
Noncancer Reference Concentration
Time Period
24-hour (1-day) to 14 days
24-hour (1-day) to 14 days
15 days to 364 days
365 days (annual)
365 days (annual)
Value (ng/m3)
0.083
NA
1000
12.0
100
NA = not available
2-7
-------
Table 2-2. Text Descriptions of the 2005 Hexavalent Chromium Monitoring Sites
2005 Site
Code
BOMA
BTUT
BURVT
CHSC
Monitoring Site
Location
Boston, MA
Bountiful, UT
Burlington, VT
Chesterfield, SC
Land Use
Commercial
Residential
Commercial
Forest
Location
Setting
Urban
Suburban
Urban
Rural
Estimated
Traffic
(# vehicles)
27,287
33,310
4,800
550
Traffic Year
Estimate
2000
2002
2005
2000
Description of the
Immediate Surroundings
The Boston site is located in a residential neighborhood on Harrison
Avenue in Dudley Square. Its purpose is to measure population
exposure for a city bus terminal that is located across the street from
the monitor and other urban sources.
The Bountiful Viewmont site is located in a suburban area of the
Ogden-Clearfield MSA, at 171 West 1370 North in Bountiful,
Utah. This site is a relocation of the BOUT site, which was about
1 . 1 miles south of the new site. The site is located on the grounds
of Viewmont High School, adjacent to a parking lot, tennis courts,
and a football field. The surrounding neighborhood is made up of
residential properties. BTUT is a SLAMS neighborhood-scale site
for monitoring population exposure to SO2, CO, NO2, and PM2 5;
and a NAMS neighborhood-scale site for monitoring maximum
ozone concentrations. Speciated PM2 5 sampling, meteorological
monitoring, and NATTS air toxics sampling are also done at the
Bountiful Viewmont site. Several petroleum refineries are located
two to five miles away from the site, as are several sand and gravel
mining operations.
The BURVT monitoring station is located near several heavily
traveled roadways, a gas station and a public parking lot in the
downtown area of Burlington, which is Vermont's largest city.
Approximately 100,000 people live within 10 miles of the BURVT
monitoring station. The site can be loosely classified as being in an
urban area.
The site was chosen as a background site. It is very rural and in the
middle of Carolina Sandhills Wildlife Refuge. The site is located
on secondary road SC 145 between McBee and Chesterfield.
Traffic on 145 is light. The nearest industry (AO Smith Water
Heaters) is approximately 9 miles away. Elevation is -450'.
to
oo
-------
Table 2-2. Text Descriptions of the 2005 Hexavalent Chromium Monitoring Sites (Continued)
2005 Site
Code
Monitoring Site
Location
Land Use
Location
Setting
Estimated
Traffic
(# vehicles)
Traffic Year
Estimate
Description of the
Immediate Surroundings
DEMI
Dearborn in
Detroit, MI
Industrial
Suburban
12,791
1990
The Dearborn, MI site is located in a residential neighborhood with
industrial impacts. An auto and steel manufacturing plant is located
in close proximity to the monitoring site. Previous violations of the
PMio standard have also occurred at this site. The site lies between
1-75 and 1-94. This site is expected to show some of the highest
levels of air toxics in the Detroit Pilot program area. The SO2 and
PMio measurements are also made there.
to
ETAL
East Thomas,
Birmingham, AL
Residential
Suburban
30,000
Unknown
This SLAMS microscale roadway site (located at the intersection of
Finley Avenue and Arkadelphia Road) has a thirty-five year history
of ambient air monitoring. This site is used mainly to monitor
vehicle emissions. It is also an environmental justice site in that
most of the residences in the area are owned and occupied by
minorities. It is also located in a valley that is heavily industrialized.
This site has also yielded some of the county's highest reported
particulate levels. There have been several special roadway
emission studies performed at this site over the past few years, the
latest of which was pertaining to the contribution of PM2.s particles
from roadway emissions.
GPCO
Grand Junction,
CO
Commercial
Urban
19,572
2000-2002
This site is a small 1 -story shelter that houses the VOC/carbonyl
sampler. The inlet for this sampler is 13' above the ground and 35'
south of Pitkin Avenue. This site also has meteorological sensors
(WS, WD, T, RH) on a 10 meter tower, a carbon monoxide
sampler and a continuous PMio sampler. Monitoring is being
conducted on the southeast side of the downtown area. The area is
very mixed usage, with commercial business to the west, northwest
and north, residential to the northeast and east, and industrial to the
southeast, south and southwest. The location is next to one of the
major east-west roads in Grand Junction.
-------
Table 2-2. Text Descriptions of the 2005 Hexavalent Chromium Monitoring Sites (Continued)
2005 Site
Code
Monitoring Site
Location
Land Use
Location
Setting
Estimated
Traffic
(# vehicles)
Traffic Year
Estimate
Description of the
Immediate Surroundings
GPMS
Gulfport, MS
Commercial
Rural
17,000
1995
The Gulfport site is in a light commercial and residential area. This
site was selected because this area is believed to have high ambient
air toxic concentrations based upon information from the NATA
study and Mississippi's major source emission inventories.
HAKY
Hazard, KY
Residential
Suburban
500
1999
to
o
The Perry County Horse Park monitoring station was established in
April 2000 and is designated as a SLAMS site for PMi0 and a
Special Purpose Monitoring site for ozone and PM2.s. In October
2001, PM2.s Speciation sampling was added as part of the national
speciation program. The site is located on the grounds of the Perry
County Horse Park and is approximately 2.5 miles north/northeast
of Hazard. The monitoring station is an 8' x 10' aluminum clad
shelter with a wooden deck covering the roof. The closest structure
to the site is Perry Central High School, which is about 600 feet
northwest of the site. The elevation is at 912 feet.
LAOR
La Grande, OR
Residential
Urban
55
2003
The La Grande site is a neighborhood-scale site surrounded by
single-family housing with some commercial activities near by.
Schools, a community college, a hospital, businesses, and some
light manufacturing, typical of a rural community, can be found in
fairly close proximity. A variety of sources impact this site. Forest
and agricultural lands surrounding La Grande are subject to
seasonal burning. No major point sources are located in close
proximity to the site; although a large wood products manufacturing
complex is located within the airshed. Interstate 84, a major
trucking route, passes on the edge of town and a large rail yard is
located near the town center.
-------
Table 2-2. Text Descriptions of the 2005 Hexavalent Chromium Monitoring Sites (Continued)
2005 Site
Code
MVWI
NBAL
Monitoring Site
Location
Mayville,WI
North Birmingham,
AL
Land Use
Agricultural
Commercial
Location
Setting
Rural
Urban
Estimated
Traffic
(# vehicles)
5,990
2,000
Traffic Year
Estimate
1989&
1994
1994
Description of the
Immediate Surroundings
Mayville is a designated rural NATTS site. The Mayville air
monitoring station is a multi-parameter site located in rural
southeast Wisconsin. The site is located approximately 45 miles
northwest of Milwaukee. The Mayville site is located directly to the
east of the Horicon National Wildlife Refuge. The monitoring
station provides an excellent location for a rural background air
toxics monitoring station. The site is rural but is located within an
area affected by a major urban area. The site also shows impact on
an important wildlife sanctuary. Current sampling at the site
compliments and supports the air toxics monitoring effort at the
site. It will in some cases allow for comparison of the monitoring
methodologies (PM2.5 metals vs. PM10 metals). The station was
originally established for the study of ozone, fine particulate matter
and regional haze. Sampling for hexavalent chromium began in
March 2005 and has continued into 2006.
This NAMS neighborhood scale site (located in North
Birmingham) is a super site with a thirty-five year history of
ambient air monitoring. It is an environmental justice site in that
most of the residences in the area are owned and occupied by
minorities. It is located in a valley that is heavily industrialized. This
site yields the one of county's highest reported particulate levels.
-------
Table 2-2. Text Descriptions of the 2005 Hexavalent Chromium Monitoring Sites (Continued)
2005 Site
Code
Monitoring Site
Location
Land Use
Location
Setting
Estimated
Traffic
(# vehicles)
Traffic Year
Estimate
Description of the
Immediate Surroundings
NBIL
Northbrook in
Chicago, IL
Residential
Suburban
29,600
2001
The village of Northbrook is located in northeast Cook County.
This monitoring site is located at the Northbrook Water Filtration
Station at 750 Dundee Road. A forest preserve is located
immediately south with residential areas farther south (southeast to
southwest). Residential areas are also immediately to the west.
Commercial areas are located along Dundee Road and to the east.
A major expressway (1-94) is located 1 km to the east and north.
O'Hare Airport is located 18 km to the southwest and the Chicago
Loop is located 32 km to the southeast.
to
to
PRRI
Providence, RI
Residential
Urban
5,500
1996
The site is on the roof of a rather spread-out, 1 -story building in a
fairly low-income neighborhood of south-Providence. It's
approximately a half-mile from 1-95 where it makes a sharp curve
as it enters the city, where traffic congestion is common.
Narragansett Bay and the Port of Providence are just a few tenths of
a mile further to the east, on the other side of the highway. There is
some industry along the Bay, including asphalt plant right next to
the curve in the highway. There is also a highway relocation
project that's been under way for a couple of years.
PVAL
Providence, AL
Residential
Rural
Unknown
Unknown
This SLAMS urban scale general background site (located in the
western-most corner of Jefferson County) was established in the fall
of 1999 to monitor background levels of ozone and PM2.s in the
county, to get a better idea of what concentrations were entering the
county, and to give better resolution at that time for the ozone
mapping program. It is a rural site in that there are not many
residences in the area and most of the land use is agricultural. It is
located on a rural mountaintop on the edge of a field used for horse
grazing. It is an excellent site for a background air toxics monitor.
-------
Table 2-2. Text Descriptions of the 2005 Hexavalent Chromium Monitoring Sites (Continued)
2005 Site
Code
Monitoring Site
Location
Land Use
Location
Setting
Estimated
Traffic
(# vehicles)
Traffic Year
Estimate
Description of the
Immediate Surroundings
S4MO
St. Louis, MO
Residential
Urban
22,840
1995
Blair Street has some industry around it and a fair amount of
industry to the east. The site is also only about 250 meters from I-
70 (at its closest point).
SDGA
Decatur, GA
Residential
Suburban
98,510
1995&
1997
to
Northwesterly winds predominate making this site a short-range
downwind location from Atlanta's urban core. Undeveloped land
surrounds the site but within 1/8 of a mile there is a residential
subdivision, a greenhouse/horse barn and an athletic field and a
high school. Traffic on Wildcat road (a dead end, 2-lane blacktop)
has considerable vehicular and diesel traffic during school hours.
Three shelters comprise the dry structures at the site. One houses
the PAMS GC, carbonyls and VOC equipment, another the
continuous monitors and the third one belongs to Georgia Tech.
Particulate matter, IMPROVE and PM10 metals reside on exposed
structures.
SEWA
Seattle, WA
Industrial
Suburban
20,000
Unknown
The Beacon Hill site is centrally located within the Seattle urban
area. The site is isolated within the confines of the city's water
reservoir. The neatest roads are at least 1 km away. It is
surrounded by residential neighborhoods, Jefferson Park and a
middle school. It is about 100 meters above sea level. The hill is
part of a larger ridge defining the eastern edge of an area of light
industry including a major seaport, an airport and warehousing and
trucking activity about 4 km west of the site. Interstate freeways
and arterial roads carrying large amounts of traffic are closely
situated 2 to 4 km northwest of the site. The site is considered to be
representative of 24 hour average PM2.5
levels within a 20 km radius (Goswami 2002).
-------
Table 2-2. Text Descriptions of the 2005 Hexavalent Chromium Monitoring Sites (Continued)
2005 Site
Code
SIAL
SYFL
UNVT
WADC
WETX
Monitoring Site
Location
Sloss Industries,
Birmingham, AL
Sydney in Plant
City FL
Underbill, VT
Washington, D.C.
in Austin TX
Land Use
Residential
Residential
Forest
Commercial
Residential
Location
Setting
Urban
Rural
Rural
Urban
Urban
Estimated
Traffic
(# vehicles)
2,700
5,142
1,000
75,800
5,733
Traffic Year
Estimate
1993
2002
1999
1991
2003
Description of the
Immediate Surroundings
This SPM neighborhood scale site (located between North
Birmingham and Tarrant) has been in operation since 1994. It was
established as an environmental justice site to monitor the
emissions of a slag wool plant and a coke plant and is located next
door to several residences in a residential area directly across the
street from the plants.
The site in Sydney is a NATTS neighborhood/rural site. Monitoring
has been occurring at Sydney for 5 years as a background site.
Current development in the area warranted it becoming a NATTS
site. The Sydney site is also being used for an intercomparison of
the port of Tampa as compared to a neighbor/rural site.
The Underhill monitoring site is in a rural area, about 20 miles east
of Burlington, VT. The site is at the base of Mount Mansfield, a
remote field surrounded by forest.
WADC is located in an open field at the southeast of end of the
McMillian Water Reservoir in Washington, D.C. It is also located
near several heavily traveled roadways. The site is surrounded by a
hospital, a cemetery, and a university. WADC is a PAMS site.
The WETX site is located in a parking lot near the intersections of
Webberville Rd and Northwestern Ave and Webberville Rd and
Pedermales St. Railroad tracks run parallel with Northwestern
Ave. The site was selected for an emphasis on a variety of factors:
upwind of industrial facilities, population density (weighed heavily),
and mobile source traffic (this location is fairly close to 1-35
north — south corridor through Austin into Round Rock).
to
BOLD = EPA-designated National Air Toxics Trend System (NATTS) site.
-------
Table 2-3. Site Descriptions for the 2005 Hexavalent Chromium Monitoring Sites
2005
Site
Code
BOMA
BTUT
BURVT
CHSC
DEMI
ETAL
GPCO
GPMS
HAKY
LAOR
MVWI
NBAL
NBIL
AQS Site Code
25-025-0042
49-011-0004
50-007-0014
45-025-0001
26-163-0033
01-073-0028
08-077-0018
28-047-0008
21-193-0003
41-061-0119
55-027-0007
01-073-0023
17-031-4201
County
Suffolk County, MA
Davis County, UT
Chittenden County, VT
Chesterfield County, SC
Wayne County, MI
Jefferson County, AL
Mesa County, CO
Harrison County, MS
Perry County, KY
Union County, OR
Dodge County, WI
Jefferson County, AL
Cook County, IL
Population
Residing Within 10
Miles of the
Monitoring Site a
1,589,367
243,462
113,941
38,990
1,201,847
399,149
106,900
172,653
31,585
16,050
24,497
394,649
883,969
County-level Stationary
Source Emissions'5 (tpy)
Total
Chromium
0.03
0.06
0.01
0.27
0.66
2.25
0.02
0.22
8.3E-04
0.01
0.02
2.25
4.90
Hexavalent
Chromium0
NR
NR
4.5E-03
9.7E-05
2.4E-03
0.42
8.0E-03
NR
NR
1.8E-03
6.9E-06
0.42
0.47
Closest National Weather
Service Station
General Logan Int'l.
Airport
Salt Lake City International
Burlington International
Airport
Monroe Airport
Detroit Metropolitan
Airport
Birmingham Int'l Airport
Walker Field Airport
Gulfport/Biloxi Regional
Airport
Julian Carroll Airport
La Grande/Union County
Airport
West Bend Municipal
Airport
Birmingham Int'l Airport
Palwaukee Municipal
Airport
to
-------
Table 2-3. Site Descriptions for the 2005 Hexavalent Chromium Monitoring Sites (Continued)
2005
Site
Code
PRRI
PVAL
S4MO
SDGA
SEWA
SIAL
SYFL
UNVT
WADC
WETX
AQS Site Code
44-007-0022
01-073-1009
29-510-0085
13-089-0002
53-033-0080
01-073-6004
12-057-3002
50-007-0007
11-001-0043
48-453-7000
County
Providence County, RI
Jefferson County, AL
St. Louis City, MO
DeKalb County, GA
King County, WA
Jefferson County, AL
Hillsborough County, FL
Chittenden County, VT
Washington, D.C.
Travis County, TX
Population
Residing Within 10
Miles of the
Monitoring Site a
677,860
28,665
822,941
720,699
899,122
394,649
259,538
33,401
1,844,583
666,062
County-level Stationary
Source Emissions'5 (tpy)
Total
Chromium
0.12
2.25
0.31
0.38
0.35
2.25
0.75
0.01
0.01
0.07
Hexavalent
Chromium0
l.OE-04
0.42
NR
NR
NR
0.42
NR
4.5E-03
NR
NR
Closest National Weather
Service Station
Theodore F. Green State
Airport
Tuscaloosa Municipal
Airport
St. Louis Downtown
Airport
W.B. Hartfield/Atlanta
International Airport
Boeing Field/King County
International Airport
Birmingham Int'l Airport
Winter Haven's Gilbert
Airport
Morrisville-Stowe State
Airport
Ronald Reagan Washington
National Airport
Austin-Bergstrom Int'l
Airport
to
a Reference: http://zipnet.htm
b Reference: 2002 National Emissions Inventory (NEI). U.S. EPA, 2006c
c NR = Not reported in the 2002 NEI
-------
Table 2-4. Sampling Schedules and Completeness
2005
Site
Code
BOMA
BTUT
BURVT
CHSC
DEMI
ETAL
GPCO
GPMS
HAKY
LAOR
MVWI
NBAL
NBIL
PRRI
PVAL
S4MO
SDGA
Monitoring
Location
Boston, MA
Bountiful, UT
Burlington, VT
Chesterfield, SC
Dearborn in
Detroit, MI
East Thomas in
Birmingham, AL
Grand Junction,
CO
Gulfport, MS
Hazard, KY
La Grande, OR
Mayville, WI
North
Birmingham, AL
Northbrook in
Chicago, IL
Providence, RI
Providence in
Birmingham, AL
St. Louis, MO
Decatur, GA
Sampling Period
Start
Date
1/10/05
1/16/05
1/22/05
1/16/05
1/10/05
7/15/05
1/10/05
10/7/05
1/11/05
1/10/05
3/17/05
7/15/05
1/11/05
1/16/05
7/15/05
1/28/05
2/27/05
End Date
12/30/05
12/30/05
12/30/05
12/30/05
12/30/05
12/30/05
12/30/05
12/31/05
12/30/05
12/30/05
12/30/05
12/30/05
12/24/05
12/30/05
12/30/05
12/30/05
12/30/05
Hexavalent Chromium
Valid
Samples
59
57
55
55
53
15
59
84
58
56
48
16
55
58
14
53
49
Total
Samples
59
59
57
59
60
16
60
86
59
59
49
16
59
59
16
54
50
Percent
Completeness
(%)
100
97
96
93
88
94
98
98
98
95
98
100
93
98
88
98
98
2-17
-------
Table 2-4. Sampling Schedules and Completeness (Continued)
2005
Site
Code
SEWA
SIAL
SYFL
UNVT
WADC
WETX
Monitoring
Location
Seattle, WA
Sloss Industries
in Birmingham,
AL
Sydney in Plant
City, FL
Underbill, VT
Washington,
D.C.
Webberville Rd,
Austin, TX
Sampling Period
Start
Date
1/10/05
7/15/05
1/16/05
1/10/05
3/17/05
6/27/05
End Date
12/30/05
12/30/05
12/30/05
12/30/05
12/30/05
12/24/05
Overall
Hexavalent Chromium
Valid
Samples
59
16
57
56
48
14
1,094
Total
Samples
60
16
59
60
49
17
1,138
Percent
Completeness
(%)
98
100
97
93
98
82
96
2-18
-------
3.0 Summary of the 2005 Hexavalent Chromium Data
This section summarizes the data gathered during the 2005 hexavalent chromium monitoring
effort. Complete presentations of the data are found in Appendices C and D, as follows:
$ Appendix C: 2005 Hexavalent Chromium Raw Monitoring Data;
$ Appendix D: 2005 Statistical Summary Table for Hexavalent Chromium
Monitoring.
The raw data tables in Appendix C were uploaded into a database for air quality statistical
characterization. To better understand the following sections, it is important to know how the
concentration data were treated. All collocated samples were averaged in order to calculate one
hexavalent chromium concentration for each sample day at each site. If one sampler at a
collocated site did not detect hexavalent chromium, but the other sampler did, the detected
concentration was retained for that site and date.
3.1 Statistical Characterization
A total of 1,153 hexavalent chromium concentrations (including collocated samples)
were collected at the 22 sites in 2005. Samples from the site commissioned to the Hurricane
Katrina monitoring effort (GPMS) account for an additional 95 concentrations.
3.1.1 Central Tendency
Table 3-1 presents the hexavalent chromium central tendency statistics of arithmetic
mean, geometric mean, median, and mode. Three types of arithmetic concentration averages are
presented in this report. The daily average is simply the average concentration of all detects. If
there are at least seven detects within each season, then a seasonal average can be calculated.
The seasonal average includes one-half MDLs substituted for all non-detects. A seasonal
average will not be calculated for sites with less than seven detects in a respective season. The
spring season includes concentrations from March, April, and May; summer includes June, July,
and August; autumn includes September, October, and November; and winter includes
December, January, and February. Finally, an annual average is the average concentration of all
detects and one-half MDLs substituted for non-detects. Annual averages are calculated only for
3-1
-------
monitoring sites where sampling began no later than February and ended no earlier than
November. Note that the annual averages will always be equal to or less than the daily average
due to the inclusion of one-half MDLs for non-detects. Each of these arithmetic means is
presented in Table 3-1.
The sites with the top three daily average mass concentrations as presented in Table 3-1
are BOMA (0.071 ± 0.017 ng/m3), DEMI (0.066 ± 0.009 ng/m3), and BURVT (0.062 ± 0.012
ng/m3). The three highest annual averages were calculated at DEMI (0.057 ± 0.009 ng/m3),
BOMA (0.057 ± 0.015 ng/m3), and BURVT (0.053 ± 0.011 ng/m3). Conversely, the lowest daily
average was observed at PVAL (0.016 ± 0.007 ng/m3), but an annual average could not be
calculated for the site. The lowest annual average was calculated for LAOR (0.015 ± 0.009
ng/m3). Eight sites do not have valid annual averages due to shortened sampling seasons:
• ETAL;
• GPMS;
• MVWI;
• NBAL;
• PVAL;
• SIAL;
• WADC; and
• WETX.
Table 3-1 also presents seasonal averages by site and Figure 3-1 is a graphical display of
the average hexavalent chromium concentration by season. Some sites, such as BOMA and
SEW A, frequently detected hexavalent chromium year-round. Other sites, such as CHSC and
UNVT, rarely detected hexavalent chromium enough to calculate all four of the seasonal
averages. Sites for which no valid seasonal averages were calculated (ETAL, LAOR, NBAL,
PVAL, SIAL, and WETX) are not included in Figure 3-1. With the exception of UNVT, every
program site has a valid summer average for hexavalent chromium. Note that GPMS, which did
not begin sampling until October, is a special monitoring site related to Hurricane Katrina, and
3-2
-------
thus is not a program site. For the sites with at least three valid seasonal averages, the summer
seasonal average most frequently exhibited the highest average concentration.
Geometric mean, median, and mode are also presented in Table 3-1. Median is the
middle concentration value of an ordered dataset. The median can be compared to the minimum
and maximum concentrations to see how the range of values varies. Mode is the concentration
that appears the most frequently in a dataset. Several of the modes are "NA" in Table 3-1,
indicating that no particular value appears most frequently. The geometric mean is similar to the
arithmetic mean (or average) except that the product of the concentrations is divided by the nth
root of the number of the values rather than the sum of the values divided by the total number of
values. The geometric mean is always less than the arithmetic mean of a dataset, and tends to be
influenced less by outliers. The daily average (or average of detected concentrations) and
geometric mean for BOMA best illustrates this difference. Although BOMA exhibited the highest
daily average (0.071 ng/m3), BOMA's geometric mean ranked second highest (0.055 ng/m3)
behind DEMI (0.058 ng/m3).
3.1.2 Data Distribution
Data distribution statistics, including the number of detects, minimum, maximum, first
and third quartiles, standard deviation, and coefficient of variation, are presented in Table 3-2.
One concentration exceeded 1 ng/m3, which was measured at WADC (2.97 ng/m3). This
concentration is an order of magnitude higher than any other measurement recorded at a
hexavalent chromium site. As a result of this concentration falling outside the distribution range,
it was not included in the central tendency calculations presented in Section 3.1.1 and Table 3-1
and will not be included in the remaining statistical characterizations. Only four concentrations
exceeded 0.25 ng/m3, while over 96 percent of the concentrations measured were less than 0.10
ng/m3. Although GPMS measured the greatest number of detects (53), SEWA measured the
greatest number of detects among program sites (51). Approximately 62 percent of the measured
concentrations were above the MDL.
3-3
-------
The 1st and 3rd quartiles represent the 25th and 75th percentile of the measured
concentrations, and is also called the interquartile range (IQR). The IQR presented in these
columns show the variability across the 23 sites. However, it is important to remember that these
values are less than or equal to 0.1 ng/m3. The standard deviation represents the amount of
variation in a data set. The highest standard deviation was calculated for LAOR (0.060).
The coefficient of variation provides a relative measure of variability by expressing
variations to the magnitude of the arithmetic mean. This analysis is best suited for comparing
variability across data distributions for different sites and/or pollutants. Figure 3-2 is a graphical
display of each site's standard deviation versus average hexavalent chromium concentration.
The coefficients of variation are generally clustered together, indicating little variability among
most of the sites.
3.2 Risk Characterization
Risk due to exposures to hexavalent chromium was evaluated in several ways, and are
presented in this section.
3.2.1 Risk Screening Approach
Each 24-hour speciated hexavalent chromium measurement was compared against its
corresponding screening value, as compiled by an EPA risk screening guidance document (U.S.
EPA, 2006d). The purpose of this guidance document is to provide a risk-based methodology for
performing an initial screen of ambient air toxics monitoring data sets. Concentrations that are
greater than the screening value are described as "failing the screen." A total of 68 of 674
applicable concentrations (10.1 percent) failed the screen. Table 3-3 summarizes the hexavalent
chromium concentrations that failed screens, as well as the total number of detects and
percentage failed for each site. BOMA had the highest number of failed screens (over 30 percent
of it's detects failed screens) while three sites, BTUT, ETAL, and PVAL, had no failed screens.
It is important to note that the number of failed screens presented for WADC in Table 3-3
includes the outlier for WADC.
3-4
-------
3.2.2 Non-Chronic Risk
In addition to the risk screening described above, non-chronic risk was evaluated. Acute
risk is defined as exposures from one to 14 days, while intermediate risk is defined as exposures
from 15 to 364 days. At this time, acute risk factors for hexavalent chromium are not available
and short-term risk could not be assessed. However, intermediate risk can be evaluated using the
ATSDR Intermediate Minimal Risk Level (MRL) for hexavalent chromium (ATSDR, 2005). It
is useful to compare seasonal averages to the Intermediate MRL.
Table 3-4 presents a summary of the hexavalent chromium intermediate risk analysis.
None of the seasonal average concentrations exceeded the ATSDR Intermediate MRL for
hexavalent chromium and were all several orders of magnitude lower. Several averages for the
four Alabama sites, LAOR, and WETX were not calculated due to the definition of a seasonal
average.
3.2.3 Chronic Risk
Chronic risk applies to long-term (1+ years) exposure. The cancer unit risk estimate
(URE) and noncancer reference concentration (RfC) are applied to each site's annual average (if
available) to calculate cancer and noncancer risk estimates. Although cancer risk is theoretical, it
is described as an estimate of the number of people that may develop cancer per million people
as a result of lifetime exposure. The URE is the concentration that equates to a one in-a-million
cancer risk. Noncancer risk (also theoretical) is presented as a hazard quotient (HQ), where an
HQ greater than one indicates a higher likelihood of an adverse health effect (such as respiratory
illnesses) occurring as a result of lifetime exposure. The RfC is the concentration that equates to
an HQ that can lead to an adverse noncancer health effect. Table 3-5 presents the chronic
(lifetime) exposure risk estimates based on the annual averages calculated for this report. Sites
without valid annual averages have no associated chronic risk calculations.
As presented in Table 3-5, none of the cancer risks associated with long-term hexavalent
chromium exposures are greater than one in-a-million. Only DEMI, BOMA, BURVT, and
SEWA exhibited calculated theoretical chronic cancer risks greater than 0.50 in-a-million (0.69,
3-5
-------
0.68, 0.63, and 0.58, respectively). All of the noncancer HQs in Table 3-5 are several orders in
magnitude below 1.0, with the highest HQ (5.7E-04) calculated for DEMI.
3.2.4 NATA Comparison
In February 2006, the EPA released the results of its NATA for base year 1999 (U.S.
EPA, 2006a). NATA uses the NEI for hazardous air pollutants (HAPs) as its starting point, but
also incorporates ambient monitoring data, geographic information, and chemical/physical
transformation information to model ambient concentrations at the census tract level. Similar to
the chronic risk calculations in Section 3.2.4, these concentrations are then applied to cancer
URE and noncancer RfC factors to yield census tract-level theoretical cancer and noncancer risk.
NATA is a useful resource in helping federal and state/local/tribal agencies identify potential
areas of air quality concern. Nationwide, the top five counties for hexavalent chromium cancer
risk are: Licking County, OH (105.83 in-a-million); Richmond City, VA (86.95); Washington
County, MS (72.73); Howard County, AR (69.07); and Copiah County, MS (62.94).
Table 3-5 also presents the 1999 NATA results for the census tracts where the hexavalent
chromium monitoring sites are located. Each site's respective census tract is identified and the
population that resides in each census tract is provided. Additionally, the NATA-modeled cancer
and noncancer risk associated with hexavalent chromium at each site also is presented in Table
3-5. Finally, the 1999 NATA-modeled hexavalent chromium concentration is presented for
comparison to the annual averages. NATA-modeled concentrations are assumed to be the
average concentration that a person breathed for an entire year. Although EPA does not
recommend comparing concentrations from different base years, it is useful to see if the
concentration profile is similar.
According to the 1999 NATA results, the top five program sites ranked by census tract
risk for cancer and noncancer were at SEW A, S4MO, DEMI, PRRI, and NBAL. By comparison,
the 2005 calculated cancer and noncancer risks for DEMI, SEW A, and S4MO ranked 1st, 4th, and
5th. All of the NATA-modeled concentrations and risks were within an order of magnitude of
3-6
-------
each other suggesting very good agreement between the modeled and measured concentration
values.
3-7
-------
oo
Figure 3-1. Comparison of Average Seasonal Hexavalent Chromium Concentrations
0.125
0.100
O)
o
^ 0.075
0)
o
o
o
0)
O)
TO
0)
TO
O
(A
0.050
0.025
0.000
/
Site
DWinter
(Spring
DSummer
OAutumn
-------
Figure 3-2. Coefficient of Variation Analysis Across 23 Sites
0.200 i
0.175
0.150
0.125
o
+-
TO
0)
Q
TO
T3
0.100
0.075 -
0.050 -
0.025
0.000
0.000 0.025
0.050
0.075 0.100 0.125
Average Concentration (ng/m3)
0.150 0.175
0.200
-------
Table 3-1. Hexavalent Chromium Central Tendency Summary
2005 Site
Code
BOMA
BTUT
BURVT
CHSC
DEMI
ETAL
GPCO
GPMS
HAKY
LAOR
MVWI
NBAL
NBIL
PRRI
PVAL
S4MO
SDGA
SEWA
SIAL
SYFL
UNVT
WADC
WETX
Daily Average
(ng/m3)
0.071 ±0.017
0.030 ±0.005
0.062 ±0.012
0.035 ±0.012
0.066 ±0.009
0.049 ±0.012
0.030 ±0.005
0.025 ±0.004
0.036 ±0.009
0.034 ±0.027
0.032 ±0.011
0.052 ±0.017
0.036 ±0.007
0.028 ±0.007
0.016 ±0.007
0.041 ±0.006
0.040 ± 0.007
0.054 ±0.012
0.052 ±0.016
0.042 ±0.011
0.035 ±0.013
0.039 ±0.013
0.041 ±0.013
Annual Average
(ng/m3)
0.057 ±0.015
0.022 ± 0.004
0.053 ±0.011
0.019 ±0.006
0.057 ±0.009
NA
0.023 ±0.004
NA
0.020 ±0.005
0.015 ±0.009
NA
NA
0.027 ± 0.006
0.019 ±0.005
NA
0.033 ±0.006
0.030 ±0.006
0.048 ±0.011
NA
0.027 ± 0.007
0.017 ±0.005
NA
NA
Winter Average
(ng/m3)
0.021 ±0.006
0.023 ±0.011
0.021 ±0.009
NA
0.036 ±0.014
NA
0.017 ±0.007
0.017 ±0.005
NA
NA
NA
NA
0.033 ±0.019
NA
NA
NA
NA
0.061 ±0.032
NA
NA
NA
NA
NA
Spring Average
(ng/m3)
0.067 ±0.028
0.020 ±0.008
0.057 ±0.019
NA
0.066 ± 0.020
NA
0.024 ±0.008
NA
NA
NA
NA
NA
0.026 ±0.011
0.016 ±0.006
NA
0.031 ±0.011
0.042 ±0.015
0.046 ±0.018
NA
0.032 ±0.017
NA
0.024 ±0.011
NA
Summer Average
(ng/m3)
0.069 ±0.033
0.020 ±0.008
0.064 ± 0.020
0.022 ±0.008
0.062 ± 0.020
NA
0.023 ±0.008
NA
0.025 ±0.013
NA
0.025 ±0.016
NA
0.034 ±0.011
0.028 ±0.016
NA
0.028 ±0.009
0.030 ±0.012
0.038 ±0.015
NA
0.048 ±0.019
NA
0.026 ±0.011
NA
Autumn Average
(ng/m3)
0.068 ±0.030
0.024 ±0.009
0.058 ±0.025
NA
0.062 ±0.012
NA
0.027 ±0.011
0.020 ± 0.004
0.027 ±0.012
NA
0.018 ±0.009
NA
0.018 ±0.005
0.016 ±0.006
NA
0.040 ±0.013
0.020 ±0.008
0.049 ±0.021
NA
0.017 ±0.006
0.024 ±0.012
NA
NA
Mode
(ng/m3)
0.151
0.018
0.114
0.011
NA
NA
NA
0.019
NA
0.005
NA
NA
0.023
0.013
NA
0.023
0.046
0.024
NA
NA
NA
0.064
NA
Median
(ng/m3)
0.048
0.027
0.054
0.024
0.066
0.041
0.028
0.019
0.029
0.017
0.022
0.051
0.031
0.023
0.019
0.039
0.040
0.042
0.044
0.032
0.028
0.025
0.035
Geometric
Mean
(ng/m3)
0.055
0.025
0.046
0.027
0.058
0.045
0.025
0.021
0.031
0.018
0.025
0.043
0.031
0.022
0.012
0.037
0.035
0.041
0.047
0.033
0.025
0.030
0.036
-------
Table 3-2. Hexavalent Chromium Statistical Distribution Summary
2005 Site
Code
BOMA
BTUT
BURVT
CHSC
DEMI
ETAL
GPCO
GPMS
HAKY
LAOR
MVWI
NBAL
NBIL
PRRI
PVAL
S4MO
SDGA
SEWA
SIAL
SYFL
UNVT
WADC
WETX
# Detects
46
38
45
22
45
11
40
53
25
17
23
11
37
34
7
39
35
51
9
32
18
25
11
Minimum
(ng/m3)
0.017
0.004
0.003
0.006
0.006
0.018
0.002
0.003
0.011
0.005
0.008
0.016
0.006
0.006
0.004
0.015
0.010
0.010
0.029
0.007
0.005
0.010
0.016
Maximum
(ng/m3)
0.269
0.079
0.147
0.147
0.146
0.081
0.095
0.083
0.103
0.256
0.132
0.100
0.112
0.119
0.026
0.109
0.116
0.224
0.104
0.134
0.101
0.173*
0.100
First Quartile
(ng/m3)
0.035
0.019
0.030
0.016
0.042
0.035
0.017
0.014
0.024
0.012
0.017
0.024
0.023
0.017
0.007
0.025
0.023
0.023
0.034
0.020
0.012
0.021
0.026
Third Quartile
(ng/m3)
0.086
0.038
0.100
0.043
0.081
0.065
0.039
0.031
0.044
0.023
0.036
0.076
0.050
0.034
0.023
0.050
0.049
0.075
0.047
0.047
0.049
0.042
0.049
Standard
Deviation
(ng/m3)
0.059
0.016
0.041
0.030
0.030
0.021
0.018
0.016
0.023
0.060
0.028
0.030
0.022
0.022
0.010
0.021
0.021
0.044
0.027
0.031
0.028
0.034
0.023
Coefficient of
Variation
0.829
0.541
0.662
0.873
0.455
0.424
0.586
0.650
0.638
1.753
0.864
0.575
0.599
0.789
0.609
0.503
0.522
0.802
0.512
0.745
0.816
0.887
0.571
* The maximum concentration shown for WADC does not include the outlier 2.97 ng/m3, measured on August 20, 2005
-------
Table 3-3. Summary of Failed Screens
2005
Site
Code
BOMA
BTUT
BURVT
CHSC
DEMI
ETAL
GPCO
GPMS
HAKY
LAOR
MVWI
NBAL
NBIL
PRRI
PVAL
S4MO
SDGA
SEWA
SIAL
SYFL
UNVT
WADC
WETX
Total
Failed Screens
14
0
13
1
11
0
1
1
2
1
1
1
1
1
0
2
1
8
2
3
1
2*
1
68
# Detects
46
38
45
22
45
11
40
53
25
17
23
11
37
34
7
39
35
51
9
32
18
25
11
674
% Failed
30.43
0.00
28.89
4.55
24.44
0.00
2.50
1.89
8.00
5.88
4.35
9.09
2.70
2.94
0.00
5.13
2.86
15.69
22 22
9.38
5.56
8.00
9.09
10.10
*Includes outlier for WADC
-------
Table 3-4. Summary of Intermediate Risk
2005
Site
Code
BOMA
BTUT
BURVT
CHSC
DEMI
ETAL
GPCO
GPMS
HAKY
LAOR
MVWI
NBAL
NBIL
PRRI
PVAL
S4MO
SDGA
SEWA
SIAL
SYFL
UNVT
WADC
WETX
ATSDR
Intermediate-term MRL
(ng/m3)
1,000
1,000
1,000
1,000
1,000
1,000
1,000
1,000
1,000
1,000
1,000
1,000
1,000
1,000
1,000
1,000
1,000
1,000
1,000
1,000
1,000
1,000
1,000
Winter Average
(ng/m3)
0.021 ±0.006
0.023 ±0.011
0.021 ±0.009
NA
0.036 ±0.014
NA
0.017 ±0.007
0.017 ±0.005
NA
NA
NA
NA
0.033 ±0.019
NA
NA
NA
NA
0.061 ±0.032
NA
NA
NA
NA
NA
Spring Average
(ng/m3)
0.067 ±0.028
0.020 ±0.008
0.057 ±0.019
NA
0.066 ± 0.020
NA
0.024 ±0.008
NA
NA
NA
NA
NA
0.026 ±0.011
0.016 ±0.006
NA
0.031 ±0.011
0.042 ±0.015
0.046 ±0.018
NA
0.032 ±0.017
NA
0.024 ±0.011
NA
Summer Average
(ng/m3)
0.069 ±0.033
0.020 ±0.008
0.064 ± 0.020
0.022 ±0.008
0.062 ± 0.020
NA
0.023 ±0.008
NA
0.025 ±0.013
NA
0.025 ±0.016
NA
0.034 ±0.011
0.028 ±0.016
NA
0.028 ±0.009
0.030 ±0.012
0.038 ±0.015
NA
0.048 ±0.019
NA
0.026 ±0.011
NA
Autumn Average
(ng/m3)
0.068 ±0.030
0.024 ±0.009
0.058 ±0.025
NA
0.062 ±0.012
NA
0.027 ±0.011
0.020 ± 0.004
0.027 ±0.012
NA
0.018 ±0.009
NA
0.018 ±0.005
0.016 ±0.006
NA
0.040 ±0.013
0.020 ±0.008
0.049 ±0.021
NA
0.017 ±0.006
0.024 ±0.012
NA
NA
-------
Table 3-5. Summary of Hexavalent Chromium Chronic (Lifetime) Risk
2005
Site
Code
BOMA
BTUT
BURVT
CHSC
DEMI
ETAL
GPCO
GPMS
HAKY
LAOR
MVWI
NBAL
NBIL
PRRI
PVAL
S4MO
SDGA
SEWA
SIAL
SYFL
UNVT
WADC
WETX
Annual Average
(ng/m3)
0.057 ±0.015
0.022 ± 0.004
0.053 ±0.011
0.019 ±0.006
0.057 ±0.009
NA
0.023 ±0.004
NA
0.020 ±0.005
0.015 ±0.009
NA
NA
0.027 ± 0.006
0.019 ±0.005
NA
0.033 ±0.006
0.030 ±0.006
0.048 ±0.011
NA
0.027 ± 0.007
0.017 ±0.005
NA
NA
Calculated
Cancer
Risk
0.68
0.26
0.63
0.23
0.69
NA
0.28
NA
0.24
0.17
NA
NA
0.32
0.22
NA
0.39
0.36
0.58
NA
0.32
0.21
NA
NA
Calculated
Noncancer
HQ
5.70E-04
2.18E-04
5.26E-04
1.92E-04
5.73E-04
NA
2.31E-04
NA
2.02E-04
1.45E-04
NA
NA
2.70E-04
1.87E-04
NA
3.27E-04
3.00E-04
4.81E-04
NA
2.69E-04
1.72E-04
NA
NA
Census Tract
ID
25025080400
49011126600
50007000500
45025950800
26163573500
01073001200
08077000800
28047001700
21193970400
41061970500
55027961400
01073000800
17031801500
44007000400
01073014102
29510109700
13089023404
53033010000
01073005500
12057012204
50007002900
11001003301
48453000802
Tract
Population
723
5,116
3,935
2,492
5,214
3,603
5,845
6,200
4,359
3,352
4,065
5,387
6,227
3,660
5,132
4,016
9,033
8,139
2,689
4,362
6,037
2,707
3,356
NATA-Modeled
Concentration
(ng/m3)
0.045
0.057
0.019
0.019
0.138
0.076
0.003
0.026
0.002
0.007
0.006
0.090
0.062
0.117
0.055
0.195
0.040
0.621
0.083
0.083
0.002
0.032
0.015
NATA-
Modeled
Cancer
Risk
0.54
0.68
0.23
0.23
1.65
0.91
0.03
0.31
0.03
0.09
0.07
1.08
0.74
1.41
0.66
2.34
0.48
7.46
1.00
1.00
0.02
0.38
0.18
NATA-
Modeled
Noncancer
HQ
4.49E-04
5.69E-04
1.91E-04
1.88E-04
1.38E-03
7.55E-04
2.73E-05
2.61E-04
2.42E-05
7.14E-05
5.99E-05
9.04E-04
6.16E-04
1.17E-03
5.51E-04
1.95E-03
3.96E-04
6.21E-03
8.34E-04
8.30E-04
1.96E-05
3.15E-04
1.49E-04
-------
4.0 Meteorological and Spatial Analysis
Both meteorology and the spatial distribution of emission sources in and around a
specific location are key elements affecting air quality. These two factors are predominantly
independent of each other, yet act as influences on each other with respect to air quality. These
two factors are explored and analyzed further in the following sections.
4.1 Meteorological Analysis
Meteorology plays an important role in air quality. For example, high temperatures can
speed up the kinetics of chemical reactions in the atmosphere; precipitation can help wash
pollutants out of the atmosphere; and stagnant conditions may allow pollutants to build up in the
atmosphere. Because of this impact on air quality, some typical meteorological characteristics
near each monitoring site are presented and how some of these meteorological factors may
influence air quality at specific locations are explored.
Hourly meteorological data at the National Weather Service (NWS) station nearest each
site were retrieved for all of 2005. These data are used to determine how meteorological
conditions on sample days vary from normal conditions throughout the year. The data are also
used to construct graphical representations of typical weather (specifically, wind) conditions.
They are also used to calculate correlations of meteorological data with ambient air
concentration measurements. The weather station closest to each hexavalent chromium
monitoring site is presented earlier in Table 2-3.
4.1.1 Averages
Table 4-1 presents the average meteorological conditions of temperature (maximum and
average), moisture (dew point temperature, wet bulb temperature, and relative humidity),
pressure (sea level), and wind information (u- and v-components) for the entire year and on days
samples were taken. The annual averages vary by site and geographical region as the hexavalent
chromium monitoring sites are located in high and low elevations, high and low latitudes,
continental and sub-tropical locations, coastal and plains regions, and mixed land usages (urban,
rural, suburban), all of which play a factor in a site's meteorological characteristics.
4-1
-------
The average meteorological conditions on sample days are fairly representative of
average weather conditions throughout the year. Some exceptions to this include the Alabama
sites, GPMS, MVWI, SDGA, WADC, and WETX. These sites did not sample year-round.
4.1.2 Wind Roses
In this analysis, wind roses were constructed for each site to help identify the
predominant direction from which the wind blows. A wind rose shows the frequency of wind
directions about a 16-point compass, and uses color or shading to represent wind speeds. Wind
roses are constructed by uploading hourly wind data from the nearest NWS station into a wind
rose software program, WRPLOT (Lakes, 2006). A wind rose is often used in determining
where to put an ambient monitoring site when trying to capture emissions from an upwind
source. A wind rose may also be useful in determining whether high concentrations correlate
with a specific wind direction. The wind rose shows the frequency at which wind speed and
direction are measured near a monitoring site, thereby capturing day-to-day fluctuations of wind
speed and direction.
The wind roses for hexavalent chromium monitoring sites on sample days are presented
in Appendix F (Figures F-l through F-23). Some wind roses show that winds originate from a
variety of directions throughout the year, while others show a marked predominant wind
direction. For example, the wind rose for DEMI shows that winds originated from a variety
directions. In contrast, southerly winds are most common near the LAOR monitoring site.
4.1.3 Composite Back Trajectories
A back trajectory analysis traces the origin of an air parcel in relation to the location
where it is currently being measured. The method of constructing a back trajectory uses the
Lagrangian frame of reference. In simplest terms, an air parcel can be traced back one hour to a
new point of reference based on the current measured wind speed and direction. At this new
point of reference that is now one hour prior to the previous observation, the wind speed and
direction are used again to determine where the air was one hour before. Each time segment is
referred to as a Atime step.® Typical back trajectories go 24 to 48 hours prior using surface and
4-2
-------
upper air meteorological observations. Back trajectory calculations are also governed by other
meteorological parameters, such as pressure and temperature.
Gridded meteorological data and the model used for back trajectory analyses were
prepared and developed by the National Oceanic and Atmospheric Administration (NOAA)
(Draxler, 2003 and Rolph, 2003). The model used is the Hybrid Single-Particle Lagrangian
Integrated Trajectory (HYSPLIT). Back trajectories were computed beginning at 18Z on each
sampling day and then constructed back 24 hours (which matches the 24-hour sample).
Composite back trajectory maps were then constructed for sampling days using GIS software.
The value of the composite back trajectory maps is the determination of an airshed domain for
air originating 24 hours prior to a sampling day. Agencies can use the airshed domain to
evaluate regions where long-range transport may affect their monitoring site. Back trajectories
do have a limitation. Because each trajectory begins at a pre-determined time (i.e. 18Z),
conditions that occur after the start time will not be captured in that trajectory. If there is a wind
shift that occurs after 18Z, such as the kind that occurs with frontal passage, the trajectory shown
will not capture conditions that occurred after that time.
Understanding Z-Time
"Z time " is also known as Greenwich Mean Time (GMT) and is used as a way to standardize
time across the globe. OZ refers to midnight along the Prime Meridian and increases by 1
for each subsequent hour. Local time corresponding to a specific Z time will vary between
four and eight hours behind in the United States depending on time zone and observation of
daylight savings time. For example, 18Z on the east coast refers to either 1PM or 2PM,
depending on daylight savings time. On the west coast, 18Z refers to either 10AM or 11AM,
again depending on the observation of daylight savings time.
The composite back trajectory maps for each of the hexavalent chromium monitoring
sites are also presented in Appendix F (Figures F-24 through F-46). Each individual line
represents the 24-hour back trajectory along which a parcel of air traveled toward the monitoring
site on a sample day. Thickened (or "highlighted") lines correspond to back trajectories for
sample days that failed screens (refer back to Section 3.2.1). Chromium emission sources (total
and hexavalent), as reported in the 2002 NEI, are plotted around the monitoring site. Each
dashed circle around the site represents a one hundred mile distance from the site.
4-3
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Many of the composite back trajectories show that numerous chromium emission sources
are located around the monitoring sites and that trajectories originated from a variety of
directions from the sites. Trajectories corresponding to sample days with concentrations that
failed screens often pass over one or more chromium sources. However, some of these
trajectories are surrounded by similar trajectories corresponding to days that did not have
concentrations that failed screens, thus making it difficult to detect if a pattern exists between
wind direction and the location of chromium emission sources. One exception to this is WETX.
The WETX composite trajectory map shows that the bulk of the trajectories originated from the
southeast, where no chromium emissions sources are located within 100 miles of the site. The
lone trajectory originating from the southwest of the site passes near several chromium sources
and is the only trajectory corresponding to a sample day with a failed screen.
Three sites had greater than 10 failed screens: BOMA (14), BURVT (13), and DEMI
(11). The composite back trajectory map for BOMA shows that trajectories originated from a
variety of directions, although most commonly from the west and northwest. Trajectories
associated with days with failed screens at BOMA originate from south, west, north, and
northeast of the site. However, sources of chromium emissions surround the BOMA monitoring
site. BURVT had the second highest number of failed screens, but the composite trajectory map
shows few chromium emission sources within a 100 mile radius around the site. Many of the
trajectories associated with sampling days with failed screens did not pass over any chromium
emission sources. DEMI is surrounded by numerous chromium sources and its trajectories
originated from a variety of directions. Most of the trajectories associated with sample days with
failed screens originated to the southeast, south, or southwest of the site, and passed over several
chromium sources. It is important to note that the two highlighted trajectories originating to the
east of the site passed over portions of Ontario, Canada, for which no emission inventory is
available.
Three sites, PVAL, ETAL, and BTUT did not have any hexavalent chromium
concentrations fail screens. As expected, the composite back trajectory maps for PVAL and
ETAL look very similar to each other. There are a number of chromium emission sources
surrounding the sites, and trajectories originate from a variety of directions about the site. Both
4-4
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of these sites sampled in a l-in-12 day sample schedule and only sampled for about half of the
year. As a result, relatively few hexavalent chromium samples were taken compared to other
nearby sites. For example, NBAL and SIAL each measured a concentration that failed its screen
on a day in which PVAL and ETAL did not. The trajectories for ETAL, NBAL, and SIAL show
the air parcel passing near three chromium sources, one to the southwest of the sites near the
Alabama/Mississippi border, and then the other two just west of the sites. The PVAL map has a
similar trajectory, but because the site is further west than the other three, the trajectory does not
pass over the same sources.
At BTUT, the back trajectories originated from a variety of directions around the site and
flowed over various chromium emission sources. However, no concentrations failed its screen at
BTUT.
4.1.4 Pearson Correlations
Pearson correlation coefficients were used to measure the degree of correlation between
two variables. By definition, Pearson correlation coefficients always lie between -1 and +1.
Three qualification statements may be made:
A correlation coefficient of-1 indicates a perfectly Anegative® relationship,
indicating that increases in the magnitude of one variable are associated with
proportionate decreases in the magnitude of the other variable, and vice versa;
A correlation coefficient of+1 indicates a perfectly Apositive® relationship,
indicating that the magnitudes of two variables both increase and both decrease
proportionately;
Data that are completely uncorrelated have Pearson correlation coefficients of 0.
Therefore, the sign (positive or negative) and magnitude of the Pearson correlation coefficient
indicate the direction and strength, respectively, of data correlations. Generally, correlations
greater than 0.75 or less than -0.75 are classified as very strong; correlation between 0.50 and
0.75 and -0.50 and -0.75 are classified as strong; and correlations between 0.25 and 0.50 and
-0.25 and -0.50 are classified as moderately strong. Correlations between -0.25 and 0.25 are
considered weak. Correlations were calculated from the processed monitoring data in which
4-5
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each site has just one numerical hexavalent chromium concentration for each successful
sampling date to avoid introducing bias.
Ambient air concentration tendencies often correlate favorably with ambient
meteorological observations. The following two sections summarize how hexavalent chromium
concentrations correlated with five meteorological parameters: average maximum daily
temperature; average daily temperature; average daily dew point temperature; average daily wet
bulb temperature; and average daily relative humidity.
4.1.4.1 Average Maximum and Average Temperature
Temperature is often a factor in high ambient air concentrations for some pollutants, such
as ozone. Temperature helps speed up the kinetics as pollutants react with each other.
According to Table 4-2, hexavalent chromium had mostly positive, moderately strong
correlations with maximum temperature and average temperature. This indicates that an increase
in temperature is often associated with a proportionate increase in concentration. The strongest
correlations calculated occurred at PVAL; however, it is important to note that this site had the
lowest number of detects for hexavalent chromium. UNVT and DEMI exhibited the next
strongest positive correlations with the temperature parameters. SIAL exhibited the strongest
negative correlations with maximum and average temperature (-0.42 and -0.43, respectively).
4.1.4.2 Moisture
Three moisture parameters were used in this study for correlation with hexavalent
chromium. The dew point temperature is the temperature to which moist air must be cooled to
reach saturation with respect to water. The wet bulb temperature is the temperature to which
moist air must be cooled by evaporating water into it at constant pressure until saturation is
reached. The relative humidity is the ratio of the mixing ratio to its saturation value at the same
temperature and pressure (Rogers and Yau, 1989). All three of these parameters provide an
indication of how much moisture is in the air. Higher dew point and wet bulb temperatures
indicate increasing amounts of moisture in the air, while relative humidity is a measure of
saturation (expressed as a percentage). It should be noted that a high dew point and wet bulb
4-6
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temperature do not necessarily equate to a relative humidity near 100 percent, nor does a relative
humidity near 100 percent equate to a high dew point or wet bulb temperature.
As illustrated in Table 4-2, the three moisture parameters also had mostly positive
correlations with hexavalent chromium. This indicates that an increase in moisture content is
often associated with a proportionate increase in concentration. Similar to the temperature
correlations, the strongest correlations calculated with the moisture variables occurred at PVAL.
WADC exhibited the next strongest positive correlations with dew point temperature and relative
humidity (0.48 and 0.52, respectively), while DEMI exhibited the strongest correlation with wet
bulb temperature (0.50). SIAL exhibited the strongest negative correlations with dew point and
wet bulb temperature (-0.42 and -0.43, respectively), while UNVT exhibited the strongest
negative correlation with relative humidity (-0.47).
4.1.5 Pollution Roses
Pollution roses for each of the hexavalent chromium monitoring sites were created to
help identify the geographical area where chromium emission sources may have originated. A
pollution rose is a plot of the ambient concentration versus the average unit vector of the wind
direction for a specific date; high concentrations are shown in relation to the direction of
potential emissions sources. A pollution rose has similar uses as the composite back trajectory
map, but the pollution rose allows the reader the additional benefit of visualizing the actual
concentration. Two limitations of the pollution rose include: 1) each 24-hour concentration is
compared to the average wind direction for a specific date. If there is a wind shift on that date,
such as the kind that occur with frontal passage, the wind direction shown might not accurately
represent conditions present throughout the day; 2) if winds were calm on a specific day, the
concentration is not plotted on the pollution rose.
The pollution roses for the sites are presented in Appendix F (Figures F-47 through F-
69). The hexavalent chromium preliminary screening value (0.083 ng/m3) is plotted on each
pollution rose to allow easy identification of concentrations failing its screen. Each pollution
rose also presents the site's daily average. It is important to note that the concentration scale is
not the same for each pollution rose.
4-7
-------
BOMA's pollution rose shows that concentrations exceeding the screening value
occurred with a variety of wind directions, although a number of the exceedances occurred with
easterly or southerly wind components. The highest concentration recorded occurred on August
14, 2005, with an easterly average wind direction. DEMFs pollution rose shows that
exceedances of the screening value primarily occurred with southeasterly, southerly, or
southwesterly winds, which correlates well with the composite back trajectory map. The highest
concentration recorded at DEMI occurred on April 16, 2005, with southeasterly winds.
Many of the pollution roses show that exceedances of the screening values occurred on
days with wind directions where on other days with the same wind direction, the concentrations
did not exceed the screening value. Two exceptions are noted. At WETX, on the only day that
the wind was out of the south-southwest, the hexavalent chromium concentration exceeded the
screening value. At SIAL, on the only day that the wind was out of the west, SIAL's hexavalent
chromium concentration exceeded the screening value.
4.2 Spatial Analysis
In an attempt to understand the spatial distribution of hexavalent chromium
concentrations, a list of potential emission sources was developed using hexavalent chromium
emission estimates from the 2002 NEI. Emissions were summed by Standard Industrial
Classification (SIC) code and these data are presented in Table 4-3. This list of SIC codes is
assumed to cover the universe of potential hexavalent chromium emission sources. Sources from
two SICs emit more than 98 percent of the total hexavalent chromium point source emissions:
SIC 4911, Electric Power Generation (1.83 tons, 80.24 percent of emissions) and SIC 3471,
Plating and Polishing (0.41 tons, 18.13 percent of emissions). Emissions from mobile sources
are much lower than stationary sources.
The potential SIC codes were then applied to a nationwide business directory (Phone
Disc, 1997), encompassing 14 million businesses by business (or facility) name, street address,
city, county, state, and SIC code to create a subset of potential hexavalent emission sources.
After retrieving this subset, county-level summaries of the number of potential emission sources
4-8
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by SIC code were generated. Table 4-4 presents a summary of the total number of emission
sources for the 18 counties (22 sites, excluding the county where the Gulfport, MS site
commissioned to the Hurricane Katrina monitoring effort is located) where hexavalent chromium
sampling took place in 2005. It is important to note that the number of sources presented here
includes both large and small (major and non-major) sources. Therefore, the number of
chromium sources in Table 4-4 will differ (often dramatically) from those presented in the
facility maps in Appendix E.
The five counties with the highest number of potential hexavalent chromium sources are
Cook County, IL (6,047 facilities); Wayne County, MI (2,403 facilities); King County, WA
(2,255 facilities); St. Louis City (1,426 facilities); and Hillsborough County, FL (1,029
facilities). In comparison, the five monitoring sites (and associated county) with the highest
daily hexavalent chromium averages are: BOMA (Suffolk County, MA), DEMI (Wayne County,
MI), BURVT (Chittenden County, VT), and SEWA (King County, WA), and SIAL and NBAL
(Jefferson County, AL). Only Wayne County, MI and King County, WA are present in both
lists. Interestingly, Washington, D.C (where the site with the tenth highest daily average resides)
and King County, WA (where the site with the fifth highest daily average resides) are the
counties with the highest number of SIC 4911 (Electric Services) sources. The site in the county
with the largest number of hexavalent chromium emission sources (NBIL) exhibited the eleventh
highest daily average.
Occupational sources of hexavalent chromium exposure may occur in the following
industries (AT SDR, 2000b):
• Stainless steel welding; • Candle makers;
• Chromate production; • Printers;
• Chrome plating; • Rubber makers; and
• Ferrochrome industry; • Cement workers.
• Chrome pigments;
• Painters;
• Maintenance of copying machines;
• Battery makers;
4-9
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Table 4-1. Average Meteorological Parameters for the Hexavalent Chromium Monitoring Sites
2005
Site
Code
BOMA
BTUT
BURVT
CHSC
DEMI
ETAL
WBAN
14739
24127
14742
53872
94847
13876
Type
All
2005
Sample
Day
All
2005
Sample
Day
All
2005
Sample
Day
All
2005
Sample
Day
All
2005
Sample
Day
All
2005
Sample
Day
Average
Maximum
Temperature
CD
57.67
± 1.95
58.53
±4.64
63.50
±2.50
64.73
±5.07
55.21
±2.28
57.28
±5.65
70.80
±1.60
71.12
±4.13
58.86
±2.25
59.10
±5.77
73.01
±1.50
77.06
±6.55
Average
Temperature
CD
50.98
± 1.83
51.55
±4.44
53.41
±1.82
54.14
±4.49
46.75
±2.18
48.41
±5.35
60.34
±1.53
60.34
±3.86
50.84
±2.07
50.89
±5.27
63.18
±1.48
66.79
±7.04
Average
Dew Point
Temperature
CD
39.46
± 1.97
39.96
±4.91
34.01
±0.92
33.64
±2.04
36.17
±2.15
38.39
±5.36
48.42
±1.83
48.49
±4.57
39.75
± 1.90
39.82
±4.96
51.64
±1.71
55.89
±8.43
Average
Wet Bulb
Temperature
CD
45.80
± 1.70
46.35
±4.19
43.52
±1.17
43.71
±2.76
41.96
±2.01
43.75
±4.95
54.25
±1.52
54.25
±3.79
45.36
± 1.84
45.45
±4.75
56.98
±1.45
60.71
±7.16
Average
Relative
Humidity
(%)
67.38
± 1.57
67.11
±3.77
55.08
±2.03
53.57
±5.08
69.40
± 1.17
71.33
±3.15
68.45
±1.47
68.97
±3.96
68.75
± 1.21
68.63
±2.76
69.45
±1.29
71.26
±6.36
Average
Sea Level
Pressure
(mb)
1015.62
±0.89
1016.08
±2.22
1015.23
±0.79
1015.50
±2.00
1015.88
±0.87
1015.48
±2.09
1017.96
±0.66
1017.75
± 1.73
1016.78
±0.76
1016.53
±1.87
1017.67
±0.57
1017.29
±2.47
Average
w-component
of the wind
2.11
±0.63
1.67
± 1.48
-0.37
±0.29
-0.42
±0.68
1.04
±0.25
0.71
±0.53
0.53
±0.39
0.62
± 1.01
1.87
±0.49
1.95
±1.09
-0.01
±0.36
-0.26
± 1.11
Average
v-component
of the wind
-0.63
±0.56
-0.29
± 1.34
2.02
±0.50
1.61
±1.16
0.34
±0.52
0.83
± 1.19
-0.70
±0.38
-0.71
± 1.00
0.19
±0.49
0.38
±1.20
-0.20
±0.37
0.17
±2.03
-------
Table 4-1. Average Meteorological Parameters for the Hexavalent Chromium Monitoring Sites (Continued)
2005
Site
Code
GPCO
GPMS
HAKY
LAOR
MVWI
NBAL
WBAN
23066
93874
03889
24148
04875
13876
Type
All
2005
Sample
Day
All
2005
Sample
Day
All
2005
Sample
Day
All
2005
Sample
Day
All
2005
Sample
Day
All
2005
Sample
Day
Average
Maximum
Temperature
(°F)
66.19
±1.99
67.43
±4.93
76.54
± 1.26
69.93
±2.17
66.60
±1.85
66.73
±4.45
60.49
±1.90
62.17
±4.90
56.16
±2.27
62.24
±5.92
73.01
±1.50
77.63
±6.35
Average
Temperature
(°F)
53.85
±1.78
54.76
±4.39
67.78
± 1.29
58.83
±2.08
57.60
±1.74
57.75
±4.26
48.91
±1.51
49.89
±3.75
48.04
±2.08
53.48
±5.48
63.18
±1.48
66.67
±7.08
Average
Dew Point
Temperature
(°F)
30.48
±1.12
29.96
±2.52
57.79
± 1.50
47.00
±2.68
44.64
±1.80
44.38
±4.62
32.93
±0.93
33.31
±2.22
38.83
± 1.99
43.18
±5.32
51.64
±1.71
55.06
±8.65
Average
Wet Bulb
Temperature
(°F)
42.50
±1.16
42.70
±2.74
62.07
± 1.28
52.87
±2.13
51.00
±1.59
51.04
±3.93
42.19
±1.07
42.92
±2.62
45.54
±2.06
52.13
±4.82
56.98
±1.45
60.25
±7.29
Average
Relative
Humidity
(%)
48.94
±2.05
46.58
±5.00
73.06
± 1.26
68.37
±2.84
65.42
±1.49
65.11
±4.20
57.92
±1.68
57.47
±4.29
72.31
± 1.25
69.88
±3.70
69.45
±1.29
69.89
±6.44
Average
Sea Level
Pressure
(mb)
1014.78
±0.76
1015.17
± 1.95
1016.60
±0.55
1018.41
±1.13
1017.15
±0.65
1017.04
± 1.73
NA
NA
NA
NA
1017.67
±0.57
1017.65
±2.62
Average
w-component
of the wind
-1.59
±0.23
-1.45
±0.62
-0.92
±0.36
-0.43
±0.61
1.05
±0.25
1.03
±0.64
1.42
±0.29
1.16
±0.74
1.38
±0.42
1.36
± 1.03
-0.01
±0.36
-0.31
± 1.12
Average
v-component
of the wind
0.75
±0.29
0.97
±0.60
-0.51
±0.45
-1.71
±0.95
0.56
±0.23
0.72
±0.48
0.92
±0.62
1.66
±1.48
-0.08
±0.33
0.12
±0.88
-0.20
±0.37
0.37
±2.07
-------
Table 4-1. Average Meteorological Parameters for the Hexavalent Chromium Monitoring Sites (Continued)
2005
Site
Code
NBIL
PRRI
PVAL
S4MO
SDGA
SEWA
WBAN
04838
14765
93806
03960
13874
24234
Type
All
2005
Sample
Day
All
2005
Sample
Day
All
2005
Sample
Day
All
2005
Sample
Day
All
2005
Sample
Day
All
2005
Sample
Day
Average
Maximum
Temperature
(°F)
59.67
±2.27
60.34
±5.94
59.77
± 1.99
61.32
±4.89
75.24
±1.50
79.81
±6.27
67.33
±2.11
69.51
±5.51
70.80
± 1.47
74.52
±3.42
60.44
±1.18
61.52
±3.01
Average
Temperature
(°F)
51.53
±2.11
52.27
±5.42
51.56
± 1.86
52.48
±4.61
63.99
±1.48
67.29
±7.05
57.45
±1.92
59.94
±4.85
61.86
± 147
64.88
±3.59
53.44
±1.02
54.02
±2.53
Average
Dew Point
Temperature
(°F)
40.86
±1.88
41.35
±4.89
40.58
±2.00
41.52
±4.98
53.34
±1.68
57.19
±8.23
46.85
±1.93
49.28
±4.92
49.72
± 1.72
52.18
±4.44
43.99
±0.85
44.03
±2.10
Average
Wet Bulb
Temperature
(°F)
46.12
±1.83
46.71
±4.72
46.55
± 1.74
47.40
±4.33
58.16
±1.45
61.54
±7.19
51.92
±1.77
54.22
±4.46
55.48
± 1.43
57.99
±3.63
48.66
±0.84
48.97
±2.03
Average
Relative
Humidity
(%)
70.00
±1.27
69.79
±3.41
69.17
± 1.51
69.32
±3.45
71.69
±1.10
73.25
±4.14
71.01
±1.32
71.38
±3.55
67.68
± 1.51
66.64
±3.84
72.85
±1.12
71.86
±3.13
Average
Sea Level
Pressure
(mb)
1016.99
±0.74
1016.69
± 1.78
1015.95
±0.87
1016.38
±2.27
1017.32
± 0.58
1017.20
±2.57
1017.30
±0.72
1015.98
±1.66
1017.31
±0.57
1017.03
± 1.35
1016.59
±0.70
1015.94
± 1.59
Average
w-component
of the wind
1.12
±0.44
1.23
±0.95
1.62
±0.44
0.99
±1.06
0.09
±0.26
-0.13
±0.86
0.64
±0.42
0.58
±1.03
0.47
±0.59
0.58
± 1.51
0.03
±0.17
0.15
±0.48
Average
v-component
of the wind
-0.03
±0.49
-0.12
± 1.20
-0.83
±0.57
-0.38
±1.31
-0.39
±0.33
0.23
± 1.87
-0.21
±0.43
0.10
±1.20
-1.08
±0.37
-1.17
±0.82
1.92
±0.36
1.79
±0.89
to
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Table 4-1. Average Meteorological Parameters for the Hexavalent Chromium Monitoring Sites (Continued)
2005
Site
Code
SIAL
SYFL
UNVT
WADC
WETX
WBAN
13876
12876
54771
13743
13904
Type
All
2005
Sample
Day
All
2005
Sample
Day
All
2005
Sample
Day
All
2005
Sample
Day
All
2005
Sample
Day
Average
Maximum
Temperature
(°F)
73.01
±1.50
77.63
±6.35
81.72
±0.96
81.25
±2.38
54.15
±2.24
54.75
±5.56
65.80
±1.91
70.78
±4.62
81.08
± 1.51
87.29
±5.63
Average
Temperature
(°F)
63.18
±1.48
66.67
±7.08
72.08
±0.98
72.08
±2.27
44.07
±2.14
44.46
±5.18
57.76
±1.82
62.48
±4.32
68.96
± 1.42
73.78
±6.38
Average
Dew Point
Temperature
(°F)
51.64
±1.71
55.06
±8.65
61.40
± 1.17
61.88
±2.65
35.09
±2.17
36.00
±5.32
44.03
±1.93
48.75
±4.67
56.58
± 1.53
58.49
±8.03
Average
Wet Bulb
Temperature
(°F)
56.98
±1.45
60.25
±7.29
65.63
±0.98
65.86
±2.26
40.09
±2.01
40.68
±4.88
50.98
±1.67
55.26
±4.00
61.69
± 1.32
64.76
±6.45
Average
Relative
Humidity
(%)
69.45
±1.29
69.89
±7.29
71.76
±0.98
72.90
±2.57
73.72
±1.13
75.56
±2.91
63.01
±1.34
63.83
±3.78
69.02
± 1.25
63.75
±4.98
Average
Sea Level
Pressure
(mb)
1017.67
±0.57
1017.65
±2.62
1016.81
±0.44
1016.61
±0.97
1016.47
±0.88
1016.68
±2.12
1017.23
±0.78
1016.44
±2.01
1015.75
±0.61
1016.43
± 1.99
Average
w-component
of the wind
-0.01
±0.36
-0.31
± 1.12
-1.10
±0.44
-0.96
±1.11
0.88
±0.17
0.67
±0.25
0.93
±0.41
1.19
±0.98
-0.84
±0.22
-1.15
±0.99
Average
v-component
of the wind
-0.20
±0.37
0.37
±2.07
-0.80
±0.40
-0.86
±0.99
-0.70
±0.31
-0.42
±0.68
-1.11
±0.51
-0.63
±1.41
0.89
±0.57
1.10
± 1.88
-------
Table 4-2. Summary of Pearson Correlation Coefficients for Selected Meteorological
Parameters and Hexavalent Chromium
2005 Site Code
BOMA
BTUT
BURVT
CHSC
DEMI
ETAL
GPCO
GPMS
HAKY
LAOR
MVWI
NBAL
NBIL
PRRI
PVAL
S4MO
SDGA
SEWA
SIAL
SYFL
UNVT
WADC
WETX
#
Detects
46
38
45
22
45
11
40
53
25
17
23
11
37
34
7
39
35
51
9
32
18
24
11
Maximum
Temperature
0.29
0.05
0.42
0.22
0.54
0.25
0.26
0.29
0.10
0.38
0.28
0.36
0.14
0.25
0.88
-0.01
0.31
-0.06
-0.42
0.07
0.55
0.27
-0.24
Average
Temperature
0.33
0.03
0.43
0.26
0.52
0.12
0.23
0.23
0.17
0.31
0.31
0.31
0.15
0.27
0.95
-0.01
0.27
-0.06
-0.43
0.26
0.45
0.34
-0.14
Dew Point
Temperature
0.38
0.01
0.46
0.31
0.47
0.09
0.05
0.20
0.30
0.17
0.29
0.27
0.17
0.15
0.95
0.02
0.18
0.15
-0.32
0.39
0.26
0.48
-0.24
Wet Bulb
Temperature
0.37
0.03
0.46
0.29
0.50
0.09
0.21
0.22
0.24
0.41
0.30
0.30
0.16
0.20
0.95
0.01
0.22
0.03
-0.37
0.36
0.36
0.44
-0.19
Relative
Humidity
0.29
-0.03
0.25
0.26
-0.19
0.00
-0.26
0.08
0.33
0.02
0.25
0.01
0.12
-0.32
0.88
0.11
-0.08
0.34
0.17
0.42
-0.47
0.52
-0.43
-------
Table 4-3. 2002 Hexavalent Chromium Point Source Emissions Summary by SIC
SIC
4911
3471
7699
2421
2046
8221
2841
2951
6553
2493
3443
SIC Description
Electric, Gas, And Sanitary Services,
Electric Services, Electric services
Fabricated Metal Products, Metal Services,
Nee, Plating and polishing
Miscellaneous Repair Services,
Miscellaneous Repair Shops, Repair
services, nee
Lumber And Wood Products, Sawmills and
Planing Mills, Sawmills & planing mills,
general
Food And Kindred Products, Grain Mill
Products, Wet corn milling
Educational Services, Colleges and
Universities, Colleges and universities
Chemicals And Allied Products, Soap,
Cleaners, and Toilet Goods, Soap and other
detergents
Petroleum And Coal Products, Asphalt
Paving and Roofing Materials, Asphalt
paving mixtures and blocks
Real Estate, Subdividers and Developers,
Cemetery subdividers and developers
Lumber And Wood Products, Miscellaneous
Wood Products, Reconstituted wood
products
Fabricated Metal Products, Fabricated
Structural Metal Products, Fabricated plate
work (boiler shops)
Short SIC Description
Electric Services
Electroplating, Plating,
Polishing, Anodizing, and
Coloring
Repair Shops and Related
Services, NEC
Sawmills and Planing Mills,
General
Wet Corn Milling
Colleges, Universities, and
Professional Schools
Soaps and Other Detergents,
Except Speciality Cleaners
Asphalt Paving Mixtures
and Blocks
Cemetery Subdividers and
Developers
Reconstituted Wood
Products
Fabricated Plate Work
(Boiler Shops)
Sum of
Emissions (tpy)
1.83
0.41
0.03
1.58E-03
1.33E-03
9.84E-04
5.00E-04
3.94E-04
1.94E-04
1.81E-04
1.71E-04
Number of Point
Sources
Contributing
35
59
1
3
3
15
1
14
8
1
1
% of Total
Emissions
80.24%
18.13%
1.35%
0.07%
0.06%
0.04%
0.02%
0.02%
0.01%
0.01%
0.01%
Cumulative
%
80.24%
98.38%
99.73%
99.80%
99.85%
99.90%
99.92%
99.94%
99.94%
99.95%
99.96%
-------
Table 4-3. 2002 Hexavalent Chromium Point Source Emissions Summary by SIC (Continued)
SIC
7261
3479
4952
2865
3423
3273
2911
3432
5171
3312
2021
8412
SIC Description
Personal Services, Funeral Service and
Crematories, Funeral service and
crematories
Fabricated Metal Products, Metal Services,
Nee, Metal coating and allied services
Electric, Gas, And Sanitary Services,
Sanitary Services, Sewerage systems
Chemicals And Allied Products, Industrial
Organic Chemicals, Cyclic crudes and
intermediates
Fabricated Metal Products, Cutlery,
Handtools, and Hardware, Hand and edge
tools, nee
Stone, Clay, And Glass Products, Concrete,
Gypsum, and Plaster Products, Ready-
mixed concrete
Petroleum And Coal Products, Petroleum
Refining, Petroleum refining
Fabricated Metal Products, Plumbing and
Heating, except Electric, Plumbing fixture
fittings and trim
Wholesale Trade-Nondurable Goods,
Petroleum and Petroleum Products,
Petroleum bulk stations & terminals
Primary Metal Industries, Blast Furnace and
Basic Steel Products, Blast furnaces and
steel mills
Food And Kindred Products, Dairy
Products, Creamery butter
Museums, Botanical, Zoological Gardens,
Museums and Art Galleries, Museums and
art galleries
Short SIC Description
Funeral Services and
Crematories
Coating, Engraving, and
Allied Services, NEC
Sewerage Systems
Cyclic Organic Crudes and
Intermediates, and Organic
Dyes and Pigments
Hand and Edge Tools,
Except Machine Tools and
Handsaws
Ready-Mixed Concrete
Petroleum Refining
Plumbing Fixture Fittings
and Trim
Petroleum Bulk Stations and
Terminals
Steel Works, Blast Furnaces
(Including Coke Ovens), and
Rolling Mills
Creamery Butter
Museums and Art Galleries
Sum of
Emissions (tpy)
1.26E-04
1.11E-04
1.07E-04
9.45E-05
8.40E-05
7.74E-05
6.72E-05
6.11E-05
5.81E-05
2.36E-05
2.17E-05
1.53E-05
Number of Point
Sources
Contributing
6
2
1
4
1
4
8
2
11
2
1
1
% of Total
Emissions
0.01%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
Cumulative
%
99.96%
99.97%
99.97%
99.98%
99.98%
99.99%
99.99%
99.99%
99.99%
99.99%
100.00%
100.00%
-------
Table 4-3. 2002 Hexavalent Chromium Point Source Emissions Summary by SIC (Continued)
SIC
8062
3357
8811
3999
3111
9621
2657
0742
3566
3824
2431
2759
SIC Description
Health Services, Hospitals, General medical
& surgical hospitals
Primary Metal Industries, Nonferrous
Rolling and Drawing, Nonferrous
wiredrawing & insulating
Private Households, Private Households,
Private households
Miscellaneous Manufacturing Industries,
Miscellaneous Manufactures,
Manufacturing industries, nee
Leather And Leather Products, Leather
Tanning and Finishing, Leather tanning and
finishing
Administration Of Economic Programs,
Regulation, Admin. Of Transportation,
Regulation, admin, of transportation
Paper And Allied Products, Paperboard
Containers and Boxes, Folding paperboard
boxes
Agricultural Services, Veterinary Services,
Veterinary services, specialties
Industrial Machinery And Equipment,
General Industrial Machinery, Speed
changers, drives, and gears
Instruments And Related Products,
Measuring and Controlling Devices, Fluid
meters and counting devices
Lumber And Wood Products, Millwork,
Plywood & Structural Members, Millwork
Printing And Publishing, Commercial
Printing, Commercial printing, nee
Short SIC Description
General Medical and
Surgical Hospitals
Drawing and Insulating of
Nonferrous Wire
Private Households
Manufacturing Industries,
NEC
Leather Tanning and
Finishing
Regulation and
Administration of
Transportation Programs
Folding Paperboard Boxes,
Including Sanitary
Veterinary Services for
Animal Specialties
Speed Changers, Industrial
High-Speed Drives, and
Gears
Totalizing Fluid Meters and
Counting Devices
Millwork
Commercial Printing, NEC
Sum of
Emissions (tpy)
1.52E-05
1.50E-05
1.25E-05
9.92E-06
6.25E-06
5.42E-06
5.00E-06
4.86E-06
3.73E-06
3.00E-06
1.60E-06
1.37E-06
Number of Point
Sources
Contributing
5
1
1
1
1
1
1
4
2
1
1
1
% of Total
Emissions
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
Cumulative
%
100.00%
100.00%
100.00%
100.00%
100.00%
100.00%
100.00%
100.00%
100.00%
100.00%
100.00%
100.00%
-------
Table 4-3. 2002 Hexavalent Chromium Point Source Emissions Summary by SIC (Continued)
SIC
3545
3272
8211
2064
2672
1622
3069
SIC Description
Industrial Machinery And Equipment,
Metalworking Machinery, Machine tool
accessories
Stone, Clay, And Glass Products, Concrete,
Gypsum, and Plaster Products, Concrete
products, nee
Educational Services, Elementary and
Secondary Schools, Elementary and
secondary schools
Food And Kindred Products, Sugar and
Confectionery Products, Candy & other
confectionery products
Paper And Allied Products, Misc. Converted
Paper Products, Paper coated & laminated,
nee
Heavy Construction, Ex. Building, Heavy
Construction, except Highway, Bridge,
tunnel, & elevated highway
Rubber And Misc. Plastics Products,
Fabricated Rubber Products, Nee,
Fabricated rubber products, nee
Short SIC Description
Cutting Tools, Machine
Tool Accessories, and
Machinists' Precision
Measuring Devices
Concrete Products, Except
Block and Brick
Elementary and Secondary
Schools
Candy and Other
Confectionery Products
Coated and Laminated
Paper, NEC
Bridge, Tunnel, and
Elevated Highway
Construction
Fabricated Rubber Products,
NEC
Total
Sum of
Emissions (tpy)
1.17E-06
8.50E-08
5.00E-08
3.50E-08
3.50E-08
2.00E-08
1.50E-08
2.29
Number of Point
Sources
Contributing
1
1
1
1
1
1
1
211
% of Total
Emissions
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
Cumulative
%
100.00%
100.00%
100.00%
100.00%
100.00%
100.00%
100.00%
oo
-------
Table 4-4. Businesses Potentially Emitting Hexavalent Chromium by SIC in Each Monitoring County
SIC Code and Description
0742, Veterinary Services for
Animal Specialties
1622, Bridge, Tunnel, and Elevated
Highway Construction
2064, Candy and Other
Confectionery Products
2421, Sawmills and Planing Mills,
General
2431,Millwork
2657, Folding Paperboard Boxes,
Including Sanitary
2672, Coated and Laminated Paper,
NEC
2759, Commercial Printing, NEC
2841, Soaps and Other Detergents,
Except Speciality Cleaners
295 1, Asphalt Paving Mixtures and
Blocks
3069, Fabricated Rubber Products,
NEC
3111, Leather Tanning and Finishing
3272, Concrete Products, Except
Block and Brick
3273, Ready-Mixed Concrete
3312, Steel Works, Blast Furnaces
(Including Coke Ovens), and Rolling
Mills
sS
a
.0
Z
56,022
43
821
923
3,120
404
1,166
19,214
332
50
630
770
206
887
1,898
1,590
U
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U
53
2
7
2
~
~
14
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~
~
~
~
~
-J
HH
0
o
U
644
60
2
51
20
40
448
11
9
7
25
5
5
19
92
H
P
38
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9
1
~
7
1
1
~
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1
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<*
d
tl
p
92
~
7
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7
46
3
4
6
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1
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'£ _3
p u
37
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~
1
42
1
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~
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•N
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•a
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19
1
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5
~
1
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~
J
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2
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£
3
234
2
2
22
1
3
86
~
5
~
~
9
5
9
|d
1
3
169
~
8
3
9
58
~
i
1
1
~
5
5
22
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do
2
463
10
5
18
4
28
176
2
2
6
~
4
6
10
O
u
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g
51
~
2
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8
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a.
6
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~
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£
a.
80
1
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2
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68
3
1
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~
2
3
O
^J
o
J
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sS
288
:
2
1
13
4
~
99
5
4
4
~
~
7
9
^
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$
s
42
1
7
2
~
55
~
1
~
1
~
1
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*,
CS
H
187
1
1
15
~
~
54
~
1
~
~
2
2
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O
=
7
~
1
~
~
~
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a?
%
254
6
2
8
1
15
133
7
i
5
11
~
9
6
68
-------
Table 4-4. Businesses Potentially Emitting Hexavalent Chromium by SIC in Each Monitoring County (Continued)
SIC Code and Description
3357, Drawing and Insulating of
Nonferrous Wire
3423, Hand and Edge Tools, Except
Machine Tools and Handsaws
3432, Plumbing Fixture Fittings and
Trim
3443, Fabricated Plate Work (Boiler
Shops)
3471, Electroplating, Plating,
Polishing, Anodizing, and Coloring
3479, Coating, Engraving, and
Allied Services, NEC
3545, Cutting Tools, Machine Tool
Accessories, and Machinists'
Precision Measuring Devices
3566, Speed Changers, Industrial
High-Speed Drives, and Gears
3824, Totalizing Fluid Meters and
Counting Devices
3999, Manufacturing Industries,
NEC
4911, Electric Services
4952, Sewerage Systems
6553, Cemetery Subdividers and
Developers
7261, Funeral Services and
Crematories
7699, Repair Shops and Related
Services, NEC
sS
a
.0
ft
Z
267
882
486
1 1 S
3,753
4,713
616
539
90
3,845
4,991
722
5,010
22,455
45,893
U
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34
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16
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187
138
19
35
121
4
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65
470
653
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17
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82
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3
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7
20
1
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13
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48
176
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2
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96
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63
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66
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76
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82
108
O
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37
49
152
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4
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4
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6
7
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82
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is
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13
2
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8
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4
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120
O
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287
-------
Table 4-4. Businesses Potentially Emitting Hexavalent Chromium by SIC in Each Monitoring County (Continued)
SIC Code and Description
8062, General Medical and
Surgical Hospitals
8211, Elementary and Secondary
Schools
8221, Colleges, Universities, and
Professional Schools
8412, Museums and Art
Galleries
9621, Regulations and
Administration of Transportation
Programs
Total
National
10,922
125,792
8,243
7,508
9,210
344,058
Chesterfield, SC
1
23
2
-
2
53
Chittenden, VT
3
97
9
6
5
258
-J
HH
0
o
U
188
2,363
190
83
43
6,047
H
•V
p
8
90
7
1
3
230
DeKalb, GA
22
180
24
6
14
584
District of
Columbia, DC
32
359
108
52
8
789
HH
€v
OJ
M
•a
o
P
3
61
-
1
4
137
Hillsborough, FL
35
283
26
5
11
1,029
Jefferson, AL
40
286
24
14
17
874
do
'!
61
753
61
60
36
2,255
O
u
ef
5
57
3
5
6
197
£?
£
1
11
3
-
2
36
Providence, RI
24
308
11
9
11
879
O
0T
o
J
la
'3
67
525
45
23
10
1,426
j
45
291
47
41
26
760
S5
H
34
256
23
37
35
835
O
a
'3
1
20
-
1
5
50
HH
0?
>>
91
941
65
31
40
2,403
to
-------
5.0 Data Quality
This section discusses data quality for the ambient air hexavalent chromium
concentrations. In accordance with the QAPP (ERG, 2005), the following data calculations were
performed: completeness, precision, and accuracy (also called bias). Completeness statistics are
presented in Section 2.5 of this report. The QAPP goal of 85 percent completeness was met by
all sites with the exception of the site in Austin, TX (WETX), which had 82 percent
completeness. As indicators of the reliability and representativeness of experimental
measurements, both precision and bias are considered when interpreting ambient air monitoring
data. All calculations are based on sample concentrations detected above the MDL. The overall
precision level (the average for all sites) is slightly higher than the UATMP and NATTS data
quality objective and the guidelines in EPA's Standard Operating Procedure for the
Determination of Hexavalent Chromium in Ambient Air Analyzed by Ion Chromatography (1C)
(U.S. EPA, 2006b). The quality assessments presented in this section provide information to
show that the hexavalent chromium monitoring data are of a known and high quality.
As outlined in the QAPP, 10 percent of all sample collections were collocated samples.
Collocated samples are samples collected simultaneously using two independent collection
systems at the same location.
5.1 Precision
Precision refers to the agreement between independent measurements performed
according to identical protocols and procedures. Two types of precision are discussed: analytical
precision and analytical and sampling precision. To normally quantify "analytical precision"
(i.e., how precisely the analytical methods measure ambient air concentrations), concentrations
measured during analysis of collocated samples are replicated. Because the volume used to
prepare the samples for analysis is too low for replicate analyses, the analytical precision is
represented by the replicate analysis performed during the 2005 Method Detection Limit Study
(U.S. EPA, 2005).
Applied to ambient air monitoring data, precision is a measurement of random errors inherent to
the process of sampling and analyzing ambient air.
5-1
-------
To quantify "sampling and analytical precision" (i.e., how precisely the sampling and
analytical methods measure ambient air concentrations), concentrations measured during
collocated samples are compared.
5.1.1 Analytical Precision
Analytical precision is a measurement of random errors associated with the process of
analyzing environmental samples. These errors may result from various factors, but typically
originate from random "noise" inherent to analytical instruments. Laboratories can easily
evaluate analytical precision by comparing concentrations measured during replicate analysis of
the same ambient air samples. This report uses three parameters to quantify random errors
indicated for hexavalent chromium samples:
Average concentration difference simply quantifies how collocated analytical
results differ, on average, for each sample. When interpreting central tendency
estimates, participating agencies are encouraged to compare central tendencies to
the average concentration differences. If the hexavalent chromium average
concentration difference exceeds or nearly equals its central tendency, the
analytical method may not be capable of precisely characterizing annual
concentrations. Therefore, data interpretation should be made with caution.
Average concentration differences are calculated by subtracting the first analytical
result from the second analytical result and averaging the difference.
Relative percent difference (RPD) expresses average concentration differences
relative to the average concentrations detected during collocated analyses. The
RPD is calculated as follows:
~- 2 xlOO = RPD
X
Where:
X\ is the ambient air concentration measured in one sample;
Xi is the concentration measured for the collocated sample analysis; and
X is the arithmetic mean of X\ and Xi.
Analysis of collocated samples with low variability have lower RPDs (and better
precision), and analysis with high variability have higher RPDs (and poorer
precision).
Coefficient of Variation (CV) provides a relative measure of data dispersion
compared to the mean.
~ X
5-2
-------
Where:
• *is the standard deviation of the sets of collocated results;
X is the arithmetic mean of the sets of collocated results;
The CV is used to measure the imprecision in survey estimates introduced from
analysis. A coefficient of 1 percent would indicate that the analytical results
could vary slightly due to sampling error, while a variation of 50 percent means
that the results are more imprecise.
The tables in this section use absolute average concentration differences, RPDs, and CVs
to characterize the analytical precision representing all collocated samples. As discussed
previously, the volume used to prepare the samples for hexavalent chromium analysis was too
low to analyze the sample twice, therefore there are no replicate analyses presented in this report.
In order to provide analytical precision, the replicate analysis of the method detection limit
samples is presented in Table 5-1. These values represent Initial Precision Recovery (IPR),
which is the verification process of how much sample is recovered during analysis. As shown,
the replicate results for 10 samples prepared at 0.25 ng/mL have a CV of 2.6 percent, which is
well within the required EPA limit at 15 percent. Replicate analyses have begun in 2006 and
will be discussed in next year's report.
5.1.2 Sampling and Analytical Precision
Sampling and analytical precision quantifies random errors associated not only with
analyzing ambient air samples in the laboratory but also with collecting the samples. This type
of precision is most easily evaluated by comparing concentrations measured in collocated
samples collected from the same air parcel. Collocated samples were collected at least 10
percent of the scheduled sampling days.
To calculate sampling and analytical precision, data analysts compared the concentrations
between collocated samples. Also, the CV for two collocated samples was calculated for each
site with the target recovery being 15 percent. Table 5-2 presents average concentration
differences, RPDs, and CVs as estimates of collocated sampling and analytical variability.
The average concentration differences observed for collocated analyses of hexavalent
chromium ranged from 0.0056 ng/m3at ETAL to 0.0514 ng/m3 at CHSC. The RPD average was
5-3
-------
slightly higher than the required 25 percent, which was calculated overall at 32.0 percent. RPD
ranged from 11.3 percent at UNVT to 89.0 percent at SDGA. The CV ranged from 8.0 percent
at UNVT to 62.9 percent at SDGA, with an overall average of 22.6 percent, which again was
slightly higher than the 15 percent required limit. The four sites with the highest RPDs were
SDGA (89.0 percent RPD, 62.9 percent CV), CHSC (70.4 percent RPD, 49.8 percent CV),
SYFL (45.9 percent RPD, 32.5 percent CV), and PRRI (41.8 percent RPD, 29.6 percent CV).
Two of these sites, PRRI and SDGA, used commercially available samplers, different from the
ERG provided samplers used at all of the other sites. CHSC had only one collocated data set of
detected results out of six total sets, the others being nondetect, whereas SYFL had two data sets
out of six that had detects, all of which were at or below the detection limit.
Samplers were exchanged and recalibrated in mid-2006. While doing these calibrations,
it was noted that there were some slight leaks in the collocated sample lines, making the actual
volumes pulled markedly lower than what was recorded. This may have affected the results for
the collocated samples, although when leaks occurred can not determined. ERG has
recommended that the sites perform quarterly flow calibration checks to ensure accurate
readings. The sites that may have been effected were DEMI, GPCO, HAKY, NBIL, SEW A, and
UNVT. The sample line at CHSC was actually broken in two, allowing no sample to go to the
collocated filter. This could explain the high RPD and CV discussed previously.
5.2 Accuracy
Laboratories typically evaluate the accuracy of data generated by analyzing external
Performance Evaluation (PE) samples and comparing the measured concentrations obtained to
the known concentrations of the PE samples. Unfortunately, PE samples were not yet available
for the measurement of hexavalent chromium in ambient air, therefore a performance evaluation
cannot be performed.
Accuracy indicates the extent to which experimental measurements represent their
corresponding "true" or "actual" values.
5-4
-------
Table 5-1. Hexavalent Chromium Analytical Precision: IPR Determination
Sample
Sample- 1
Sample-2
Sample-3
Sample-4
Sample-5
Sample-6
Sample-7
Sample-8
Sample-9
Sample- 10
Standard Deviation
Method Detection Limit
CV
Concentration
(ng/mL)
0.265
0.257
0.277
0.260
0.264
0.268
0.267
0.277
0.266
0.275
0.00692
0.0195
2.6%
5-5
-------
Table 5-2. Hexavalent Chromium Sampling and Analytical Precision:
Collocated Samples
2005
Site
Code
BOMA
BURVT
CHSC
DEMI
ETAL
GPCO
GPMS
HAKY
MVWI
NBAL
NBIL
PRRI
PVAL
S4MO
SAMS
SDGA
SEWA
SIAL
SYFL
UNVT
WETX
Number of
Collocated
samples
16
26
12
10
2
12
18
12
8
2
8
14
2
10
18
6
14
2
12
16
2
Average
Frequency
of
Detection
81%
73%
17%
90%
100%
67%
83%
25%
50%
0%
63%
71%
0%
50%
22%
83%
100%
0%
33%
31%
100%
54%
Average
RPDfor
Replicate
Analyses
(%)
23.8%
25.0%
70.4%
17.8%
31.8%
22.9%
27.4%
28.6%
24.5%
NA
21.1%
41.8%
NA
15.7%
19.2%
89.0%
27.9%
NA
45.9%
11.3%
32.8%
32.0%
Average
Concentration
Difference for
Replicate
Analyses
(ng/m3)
0.0161
0.0147
0.0514
0.0188
0.0056
0.0150
0.0098
0.0209
0.0087
NA
0.0161
0.0062
NA
0.0189
0.0131
0.0378
0.0166
NA
0.0078
0.0121
0.0075
0.0165
Coefficient
of Variation
(%)
16.8%
17.7%
49.8%
12.6%
22.5%
16.2%
19.3%
20.2%
17.3%
NA
14.6%
29.6%
NA
11.1%
13.6%
62.9%
19.7%
NA
32.5%
8.0%
23.2%
22.6%
5-6
-------
6.0 Conclusions and Recommendations
As indicated throughout this report, UATMP and NATTS monitoring data offer a wealth
of information for evaluating trends, patterns, and the potential for health risk in air quality and
should ultimately help a wide range of audiences understand the complex nature of urban and
rural air pollution. The following discussion summarizes the main conclusions of this report and
presents recommendations for ongoing urban air monitoring efforts.
6.1 Conclusions
Analyses of the 2005 UATMP hexavalent chromium monitoring data identified the
following notable trends and patterns in national-level and site-specific urban air pollution:
$ Ambient air concentration data sets generally met data quality objectives for
completeness. Completeness, or the number of valid samples collected compared to the
number expected from a l-in-6 or l-in-12 day sampling schedule, measures the reliability
of the sampling and analytical equipment as well as the efficiency of the program.
Typically, a completeness of 85-100% is desired for a complete data set. One out of 23
data sets failed to comply with the data quality objective of 85% completeness. Three
data sets achieved 100% completeness.
$ Total number of samples for hexavalent chromium. A total of 1,153 measurements of
hexavalent chromium were made. Samples from the site commissioned to the Hurricane
Katrina monitoring effort account for an additional 95 measurements.
$ Ambient air concentrations of hexavalent chromium. Only one measured concentration
exceeded 1 ng/m3. This data point was excluded from most statistical analyses because it
falls outside the distribution range. Over 96 percent of the concentrations were less than
0.10 ng/m3.
$ Detects. Detection of hexavalent chromium is subject to the analytical method used and
the limitations of the instruments. Method detection limits are the lowest concentration
an instrument can reliably quantify with a certain level of confidence. Approximately
62% of the measured concentrations were detected.
$ Averages. Three types of averages were calculated for each site sampling hexavalent
chromium: daily, seasonal, and annual. The highest daily average was calculated for
BOMA (0.071 ng/m3). The highest annual averages were calculated for BOMA and
DEMI (both 0.057 ng/m3). Annual averages could not be calculated for eight sites due to
the short sampling duration. Summer and autumn tended to have the highest seasonal
averages.
6-1
-------
$ Preliminary Risk Screening. Over 10% of the hexavalent chromium concentrations failed
screens. The failure rate varied by site, ranging from 0 percent (at BTUT, ETAL, and
PVAL) to 30 percent (at BOMA).
• Non-Chronic Risk. Acute risk factors are not available at this time for hexavalent
chromium. An intermediate risk value has been determined by ATSDR and can be
compared to seasonal averages of hexavalent chromium. No seasonal average of
hexavalent chromium exceeded the ATSDR Intermediate MRL.
• Chronic Risk. According to the 1999 NAT A, the sites with the highest cancer and
noncancer risks were SEW A, S4MO, and DEMI. Based on the annual averages of
measured concentrations of hexavalent chromium, DEMI, BOMA, and BURVT
exhibited the highest cancer and noncancer risks.
$ Pearson Correlations. Pearson Correlations were computed at each site between
hexavalent chromium and various meteorological parameters. Most of the sites exhibited
moderately strong positive correlations with the temperature and moistures variables.
The strongest correlations were calculated for PVAL, which also had the lowest number
of measurements taken.
$ Emissions. Point sources involved in electric power generation and metal plating and
polishing industries contribute to over 98 percent (80 percent and 18 percent,
respectively) of stationary source hexavalent chromium emissions. Of the sites sampling
hexavalent chromium, the counties where WADC and SEWA reside have the highest
number of electric power generating facilities and have the highest and fifth highest daily
averages, respectively.
6.2 Data Quality
The precision of the sampling methods and concentration measurements was analyzed for
the 2005 UATMP and NATTS programs using relative percent difference (RPD), coefficient of
variation (CV), and average concentration difference calculations based on collocated samples.
The overall precision was within the data quality objectives and Monitoring Method guidelines.
Sampling and analytical method accuracy is assured by using proven methods and following
strict quality control and quality assurance guidelines.
6.3 Recommendations
In light of the lessons learned from the 2005 monitoring effort, a number of
recommendations for future ambient air monitoring are supported:
$ Encourage state/local/tribal agencies to develop and/or verify hexavalent chromium
emission inventories. State/local/tribal agencies should use the data collected from the
6-2
-------
UATMP and NATTS program to validate an emissions inventory or, at the very least,
identify and/or verify emission sources of concern. Ideally, state/local/tribal agencies
would compare the ambient monitoring results with an emission inventory for source
category completeness. The emissions inventory would then be used to develop modeled
concentrations useful to compare against ambient monitoring data.
$ Use ambient air monitoring data to improve NATA results. NAT A-modeled
concentrations may be compared to the ambient air monitoring concentrations to
compare/validate NATA results.
$ Encourage continued participation in the UATMP and NATTS program. Ongoing
ambient air monitoring at fixed locations can provide insight into long-term trends in
urban air quality and the potential for urban air pollution to cause adverse health effects
among the general population. Therefore, state and local agencies should be strongly
encouraged either to develop and implement their own ambient air monitoring programs
or to participate in future UATMP monitoring efforts. It is also recommended that
monitoring sites be placed in census tracts in which NATA cancer risk is extremely high
(greater than 25 in-a-million).
$ Encourage year-round monitoring. Many of the statistical treatments presented require a
full year of data to be most useful and representative of conditions experienced at each
specified location. Therefore, state, local, and tribal agencies should be strongly
encouraged to implement year-round ambient air monitoring programs.
6-3
-------
7.0 References
ATSDR, 2000a. Agency for Toxics Substances and Disease Registry (ATSDR). Public Health
Statement for Chromium. September 2000.
http ://www. atsdr. cdc.gov/toxprofiles/phs7. html
ATSDR, 2000b. Agency for Toxics Substances and Disease Registry (ATSDR). Toxicological
Profile for Chromium. September 2000. http://www.atsdr.cdc.gov/toxprofiles/tp7.html
ATSDR, 2005. Agency for Toxics Substances and Disease Registry (ATSDR). Minimal Risk
Levels for Hazardous Substances. December 2005. Internet address:
http ://www. atsdr. cdc. gov/mrls.html
Draxler, R.R. and Rolph, G.D., 2003. HYSPLIT (Hybrid Single-Particle Lagrangian Integrated
Trajectory) Model access via NOAA ARL READY Website
(http://www.arl.noaa.gov/ready/hysplit4.html). NOAA Air Resources Laboratory. Silver
Spring. MD.
ERG, 2005. Eastern Research Group, Inc. ASupport for the EPA National Monitoring Programs
(NMOC, UATMP, PAMS, HAPs, and NATTS), Quality Assurance Project Plan,
Category 1, 2005/2006.® Internet address:
http ://www. ergweb2. com/uatmp/user/index. cfm
Lakes, 2006. Lakes Environmental, WRPLOT View, http://www.weblakes.com/lakewrpl.html.
2006.
PhoneDisc, 1997. American Business Information, Inc. Name and Business Type Index, Second
Edition. Bethesda, Maryland.
Rolph, G.D., 2003. Real-time Environmental Applications and Display sYstem (READY)
Website (http://www.arl.noaa.gov/ready/hysplit4.html). NOAA Air Resources Laboratory,
Silver Spring, MD.
Rogers and Yau, 1989. AA Short Course in Cloud Physics.® R. R. Rogers and M. K. Yau.
Pergamon Press. 1989.
Ruffner and Bair, 1987. AThe Weather Almanac.® James A. Ruffner and Frank E. Bair. Gale
Research Company. 1987.
Topozone. Maps a la Carte, Inc. 2003. www.topozone.com
USEPA, 2005. 40 CFR Part 136, Appendix B. Definition and Procedure for the Determination
of the Method Detection Limit, Revision 1.11.
7-1
-------
USEPA, 2006a. The National-Scale Air Toxics Assessment (NATA) for 1999. Internet address:
http ://www. epa. gov/ttn/atw/nata 19997
USEPA, 2006b. Standard Operating Procedure for the Determination of Hexavalent Chromium in
Ambient Air Analyzed by Ion Chromatography (1C). June 2006. Internet address:
http ://www. epa. gov/ttn/amtic/airtox. html
USEPA, 2006c. 2002 National Emissions Inventory (NEI) Data and Documentation. Data
retrieved from ftp://ftp.epa.gov/EmisInventory/2002fmalnei/
USEPA, 2006d. A Preliminary Risk-based Screening Approach for Air Toxics Monitoring Data
Sets. Air, Pesticides, and Toxics Management Division. Atlanta, GA. February 2006.
Internet address: http://www.epa.gov/docs/region04/air/airtoxic/Screening-041106-
KM.pdf
USEPA, 2007. "2005 Urban Air Toxics Monitoring Program (UATMP), Final Report". EPA-
454/R-07-001. December 2006.
7-2
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Appendix A
AQS Site Descriptions for the
2005 Hexavalent Chromium Monitoring stations
-------
Appendix A
2005 UATMP
Hexavalent Chromium
Report
Air Quality Subsystem
Site Description
Page 1 of23
SiteAQSID: 01-073-0028 Site ID: ETAL
Address: EAST THOMAS, FINLEY, 841 FINLEY AVE. BP.
State: ALABAMA
Location Description:
Collection Method: GPS - UNSPECIFIED
Date Established: 1/1/1981
Regional Eval Date: 11/16/1981
MS A/CMS A: BIRMINGHAM, AL
Type Met Site:
Urban Area: BIRMINGHAM, AL
City Population:
Census Block:
Congressional District:
Site Latitude: 33.529444
UTMZone: 16
Accuracy: 15
Vertical Measure (m): 170
Vertical Datum: UNKNOWN
Zip: 35204
Date Terminated:
HQ Eval Date:
Dist to Met Site (m):
Dir. toCBD: SE
Block Group:
Local ID:
City: BIRMINGHAM
County: JEFFERSON
Location Setting: SUBURBAN
Land Use: RESIDENTIAL
Last Updated: 03/22/2005
AQCR: METROPOLITAN BIRMINGHAM
Met Site ID:
Direct Met Site:
Local Region:
Dist to City (km): 6
Census Tract:
Class 1 Area:
Time Zone: CENTRAL
UTM Easting: 513902
Scale: 0
Vertical Method: 000
EPA Region:
Site Longitude: -86.850278
UTM Northing: 3709800
Datum: WGS84
Vertical Accuracy: 0
Agency: JEFFERSON COUNTY, AL DEPARTMENT OF HEALTH
Site Comments: NAMS MICRO SCALE CARBON MONOXIDE AND PB SLAMS CARBON MONOXIDE
Traffic Information:
Tangent Traffic
Road Name Count
1 UNKNOWN 30000
Point/Line/Area: POINT
Tangent
Road
Year of Traffic
Count
Source of
Traffic Count
Type
Road
EXPRESSWAY
Direction from
Site to Road
UNK
-------
Appendix A
2005 UATMP
Hexavalent Chromium
Report
Air Quality Subsystem
Site Description
Page 2 of23
Site AQS ID: 01-073-0023 Site ID: NBAL
Address: NO. B'HAM,SOU R.R., 3009 28TH ST. NO.
State: ALABAMA
Location Description:
Collection Method: GPS - UNSPECIFIED
Date Established: 3/12/1979
Regional Eval Date:
MS A/CMS A: BIRMINGHAM, AL
Type Met Site:
Urban Area: BIRMINGHAM, AL
City Population:
Census Block:
Congressional District:
Site Latitude: 33.553056
UTMZone: 16
Accuracy: 15
Vertical Measure (m): 174
Vertical Datum: UNKNOWN
Zip: 35207
Date Terminated:
HQ Eval Date: 07/17/1980
Distto Met Site (m):
Dir. toCBD: N
Block Group:
Site Longitude: -86.815
UTM Northing: 3712423
Datum:
Vertical Accuracy: 0
Agency: JEFFERSON COUNTY, AL
Local ID:
City: BIRMINGHAM
County: JEFFERSON
Location Setting: URBAN AND CENTER CITY
Land Use: COMMERCIAL
Last Updated: 03/22/2005
AQCR: METROPOLITAN BIRMINGHAM
Met Site ID:
Direct Met Site:
Local Region:
Dist to City (km): 4
Census Tract:
Class 1 Area:
Time Zone: CENTRAL
UTM Easting: 517173
Scale: 0
Vertical Method: 000
DEPARTMENT OF HEALTH
EPA Region:
Point/Line/Area: POINT
Site Comments: NAMS PM10 SITE POC 4 IS A CONTINUOUS PM10 MONITOR
Traffic Information:
Traffic Year of Traffic
Count Count
2000 1994
Tangent
Road
Tangent
Road Name
Source of
Traffic Count
Type
Road
1
28TH STREET NORTH
Direction from
Site to Road
LOCAL ST OR HY W
-------
Appendix A
2005 UATMP
Hexavalent Chromium
Report
SiteAQSID: 01-073-1009
Add ress: 1801 BRUCE SHAW ROAD
State: ALABAMA
Location Description:
Collection Method: GPS - UNSPECIFIED
Date Established: 1/1/2000
Regional Eval Date:
MS A/CMS A: BIRMINGHAM, AL
Type Met Site:
U rban Area: NOT IN AN URBAN AREA
City Population:
Census Block:
Congressional District:
Site Latitude: 33.459722
UTMZone: 16
Accuracy: 15
Vertical Measure (m): 14
Vertical Datum: NGVD29
Site Comments:
Traffic Information:
Tangent
Road
Tangent
Road Name
LOCK 17 ROAD
Air Quality Subsystem
Site Description
Page 3 of23
Site ID: PVAL
Zip: 35006
Date Terminated:
HQ Eval Date:
Distto Met Site (m):
Dir. to CBD:
Block Group:
Site Longitude: -87.305556
UTM Northing: 3702102
Datum: WGS84
Vertical Accuracy: 5
Agency: JEFFERSON COUNTY, AL
Local ID:
City: NOT IN A CITY
County: JEFFERSON
Location Setting: RURAL
Land Use: RESIDENTIAL
Last Updated: 03/22/2005
AQCR: METROPOLITAN BIRMINGHAM
Met Site ID:
Direct Met Site:
Local Region:
Dist to City (km):
Census Tract:
Class 1 Area:
Time Zone:
UTM Easting: 471604
Scale: 0
Vertical Method: 014
DEPARTMENT OF HEALTH
EPA Region:
Point/Line/Area: POINT
Traffic
Count
Year of Traffic
Count
Source of
Traffic Count
Type
Road
Direction from
Site to Road
LOCAL ST OR HY S
-------
Appendix A
2005 UATMP
Hexavalent Chromium
Report
SiteAQSID: 01-073-6004
Add ress: 4113 SHUTTLESWORTH DRIVE
State: ALABAMA
Location Description:
Collection Method: GPS - UNSPECIFIED
Date Established: 1/24/1996
Regional Eval Date:
MS A/CMS A: BIRMINGHAM, AL
Type Met Site:
Urban Area: BIRMINGHAM, AL
City Population:
Census Block:
Congressional District:
Site Latitude: 33.565278
UTM Zone: 16
Accuracy: 15
Vertical Measure (m): 179
Vertical Datum: UNKNOWN
Site Comments:
Traffic Information:
Air Quality Subsystem
Site Description
Page 4 of23
Tangent
Road
42
Tangent
Road Name
AVENUE NORTH
Site ID: SIAL
Zip: 35207
Date Terminated:
HQ Eval Date:
Distto Met Site (m):
Dir. to CBD:
Block Group:
Site Longitude: -86.796389
UTM Northing: 3713782
Datum: WGS84
Vertical Accuracy: 15
Agency: JEFFERSON COUNTY, AL
Local ID:
City: BIRMINGHAM
County: JEFFERSON
Location Setting: URBAN AND CENTER CITY
Land Use: RESIDENTIAL
Last Updated: 3/22/2005
AQCR:
Direct Met Site:
Local Region:
Dist to City (km):
Census Tract:
Class 1 Area:
Time Zone: CENTRAL
UTM Easting: 518899
Scale: 0
Vertical Method: 8
DEPARTMENT OF HEALTH
Met Site ID:
EPA Region:
Point/Line/Area:
Traffic
Count
Year of Traffic
Count
Source of
Traffic Count
Type
Road
Direction from
Site to Road
LOCAL ST OR HY E
-------
Appendix A
2005 UATMP
Hexavalent Chromium
Report
SiteAQSID: 08-077-0018
Address: 645 1/4PITKINAVE.
State: COLORADO
Location Description:
Collection Method: GPS - UNSPECIFIED
Date Established: 1/15/2004
Regional Eval Date:
MS A/CMS A: GRAND JUNCTION, CO
Type Met Site:
Urban Area: GRAND JUNCTION, CO
City Population:
Census Block:
Congressional District:
Site Latitude: 39.066201
UTMZone: 12
Accuracy: 1
Vertical Measure (m): 1396
Vertical Datum: MEAN SEA-LEVEL
Air Quality Subsystem
Site Description
Page 5 of23
Site ID: GPCO
Zip: 81501
Date Terminated:
HQ Eval Date:
Dist to Met Site (m):
Dir. to CBD:
Block Group:
Local ID:
City: GRAND JUNCTION
County: MESA
Location Setting: URBAN AND CENTER CITY
Land Use: COMMERCIAL
Last Updated: 02/03/2004
AQCR:
Direct Met Site:
Local Region:
Dist to City (km):
Census Tract:
Class 1 Area:
Time Zone: MOUNTAIN
UTM Easting: 710962
Scale: 24000
Vertical Method: 1
Met Site ID:
EPA Region:
Site Longitude: -108.561659
UTM Northing: 4326741
Datum: NAD83 Scale: 24000 Point/Line/Area:
Vertical Accuracy: 1
Agency: COLORADO DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT
Site Comments: IN PARKING LOT TO NORTH OF POWELL BLDG. PARTICIPATE SITE (08-077-0017)
Traffic Information:
Tangent Traffic Year of Traffic Source of
Road Name Count Count Traffic Count
1 PITKINAVE. 13525 2001 DOT
2 7THST. 5015 2002 DOT
3 SOUTH AVE. 1032 2000 DOT
Tangent
Road
Type
Road
THRU ST OR HY
LOCAL ST OR HY
LOCAL ST OR HY
Direction from
Site to Road
N
E
S
-------
Appendix A
2005 UATMP
Hexavalent Chromium
Report
Air Quality Subsystem
Site Description
Page 6 of23
SiteAQSID: 11-001-0043 Site ID: WADC
Address: S.E. END MCMLLIAN RESERVOIR, WASH. DC.
State: DISTRICT OF COLUMBIA Zip: -20001
Location Description:
Collection Method:
Date Established: 9/9/1993 Date Terminated:
Regional Eval Date: 09/10/1993 HQ Eval Date: 09/10/1993
MS A/CMS A: WASHINGTON-ARLINGTON-ALEXANDRIA, DC-VA-MD-WV
Type Met Site: Dist to Met Site (m): 1
Urban Area: WASHINGTON, DC-MD-VA
City Population:
Census Block:
Congressional District:
Site Latitude: 38.918889
UTMZone: 18
Accuracy: 5
Vertical Measure (m): 50
Local ID: 0043
City: NOT IN A CITY
County: DISTRICT OF COLUMBIA
Location Setting: URBAN AND CENTER CITY
Land Use: COMMERCIAL
Last Updated:
Dir. toCBD: NW
Block Group:
Vertical Datum: UNKNOWN
Site Comments:
Traffic Information:
Site Longitude: -77.0125
UTM Northing: 4309493
Datum: NAD27
Vertical Accuracy: 0
Agency: DC DEPT. OF HEALTH
AQCR: NATIONAL CAPITAL
Direct Met Site: S
Local Region:
Dist to City (km):
Census Tract:
Class 1 Area:
Time Zone:
UTM Easting: 325523
Scale: 24000
Vertical Method: 000
. BEQ AIR QUALITY DIV.
Met Site ID:
EPA Region:
Point/Line/Area: POINT
Tangent
Road
1
2
3
4
5
6
Tangent
Road Name
NORTH CAPITOL STREET
MICHIGAN AVE.
BRYANT STREET
3RD STREET
1ST. STREET
4TH. STREET
Traffic
Count
27000
16000
4500
4900
11000
12400
Year of Traffic
Count
1992
1992
1992
1992
1992
1992
Source of
Traffic Count
Type
Road
MAJ ST OR HY
MAJ ST OR HY
LOCAL ST OR HY
LOCAL ST OR HY
LOCAL ST OR HY
LOCAL ST OR HY
Direction from
Site to Road
E
N
NE
SW
E
W
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Appendix A
2005 UATMP
Hexavalent Chromium
Report
Air Quality Subsystem
Site Description
Page 7 of23
Site ID: SYFL
Zip: 33527
SiteAQSID: 12-057-3002
Add ress: 1167 NORTH DOVER ROAD
State: FLORIDA
Location Description:
Collection Method: GPS - UNSPECIFIED
Date Established: 1/1/2004 Date Terminated:
Regional Eval Date: HQ Eval Date:
MSA/CMSA: TAMPA-ST. PETERSBURG-CLEARWATER, FL
Type Met Site: Dist to Met Site (m):
Urban Area: TAMPA-ST. PETERSBURG-CLEARWATER, FL
City Population:
Census Block:
Congressional District:
Site Latitude: 27.96565
UTMZone: 17
Accuracy: 0
Vertical Measure (m): 20
Vertical Datum: MEAN SEA-LEVEL
Site Comments:
Traffic Information:
Tangent Tangent
Road Road Name
1 SYDNEY ROAD
2 DOVER ROAD
Dir. toCBD: N
Block Group:
Site Longitude: -82.2304
UTM Northing: 3093835
Datum: NAD83
Vertical Accuracy: 0.01
Local ID:
City: PLANT CITY
County: HILLSBOROUGH
Location Setting: RURAL
Land Use: RESIDENTIAL
Last Updated: 04/06/2004
AQCR: WEST CENTRAL FLORIDA
Met Site ID:
Direct Met Site:
Local Region:
Dist to City (km):
Census Tract:
Class 1 Area:
Time Zone: EASTERN
UTM Easting: 378978
Scale: 24000
Vertical Method: 008
EPA Region:
Point/Line/Area: POINT
Agency: HILLSBOROUGH COUNTY ENVIRONMENTAL PROTECTION COMMISSION
Traffic
Count
1945
3197
Year of Traffic
Count
2002
2002
Source of
Traffic Count
Type
Road
LOCAL ST OR HY
LOCAL ST OR HY
Direction from
Site to Road
N
E
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Appendix A
2005 UATMP
Hexavalent Chromium
Report
Air Quality Subsystem
Site Description
Page 8 of23
Site ID: SDGA
Zip: 30034
SiteAQSID: 13-089-0002
Address: SOUTH DEKALB
State: GEORGIA
Location Description:
Collection Method: GPS CODE (PSEUDO RANGE) PRECISE POSITION
Date Established: 1/1/1974 Date Terminated:
Regional Eval Date: HQ Eval Date: 07/16/1980
MSA/CMSA: ATLANTA-SANDY SPRINGS-MARIETTA, GA
Type Met Site:
Urban Area: ATLANTA, GA
City Population:
Census Block:
Congressional District:
Site Latitude: 33.6875
UTMZone: 16
Accuracy: 0
Vertical Measure (m): 308
Vertical Datum: UNKNOWN
Distto Met Site (m):
Dir. toCBD: SE
Block Group:
Local ID:
City: DECATUR
County: DEKALB
Location Setting: SUBURBAN
Land Use: RESIDENTIAL
Last Updated:
AQCR: METROPOLITAN ATLANTA
Met Site ID:
Direct Met Site:
Local Region:
Dist to City (km): 8
Census Tract:
Class 1 Area:
Time Zone: EASTERN
UTM Easting: 751191
Scale: 24000
Vertical Method: 000
EPA Region:
Site Longitude: -84.290278
UTM Northing: 3730641
Datum: NAD27
Vertical Accuracy: 0
Agency: GEORGIA AIR PROTECTION BRANCH AMBIENT MONITORING PROGRAM
Site Comments: LOCATED ON DEKALB CO. SCHOOLS ENVIRONMENTAL EDUCATION PROPERTY
Traffic Information:
Traffic Year of Traffic
Count Count
500 1997
10 1997
98000 1995
Point/Line/Area: POINT
Tangent
Road
Tangent
Road Name
Source of
Traffic Count
Type
Road
CLIFTON SPRINGS RD
WILDCAT ROAD
1-285
LOCAL ST OR HY
LOCAL ST OR HY
EXPRESSWAY
Direction from
Site to Road
N
S
NW
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Appendix A
2005 UATMP
Hexavalent Chromium
Report
Air Quality Subsystem
Site Description
Page 9 of23
Site ID: NBIL
Zip: 60062
SiteAQSID: 17-031-4201
Address: 750 DUNDEE RD.
State: ILLINOIS
Location Description:
Collection Method: GPS CODE (PSEUDO RANGE) PRECISE POSITION
Date Established: 3/20/1997 Date Terminated:
Regional Eval Date: HQ Eval Date:
MS A/CMS A: CfflCAGO-NAPERVILLE-JOLIET, IL-IN-WI
Type Met Site: Dist to Met Site (m):
Urban Area: CHICAGO, IL-NORTHWESTERN INDIANA
City Population:
Census Block:
Congressional District:
Site Latitude: 42.14
UTMZone: 16
Accuracy: 20
Vertical Measure (m): 198
Vertical Datum: MEAN SEA-LEVEL
Local ID:
City: NORTHBROOK
County: COOK
Location Setting: SUBURBAN
Land Use: RESIDENTIAL
Last Updated: 07/19/2003
AQCR: METROPOLITAN CHICAGO
Met Site ID:
Dir. toCBD: NE
Block Group:
Site Longitude: -87.799167
UTM Northing: 4665414
Datum: NAD27
Vertical Accuracy: 5
Agency: ILLINOIS ENVIRONMENTAL
Site Comments:
Traffic Information:
Tangent
Road
Tangent
Road Name
DUNDEE ROAD
Traffic
Count
34900
Year of Traffic
Count
1993
Direct Met Site:
Local Region:
Dist to City (km): 32
Census Tract:
Class 1 Area:
Time Zone: CENTRAL
UTM Easting: 433955
Scale: 24000
Vertical Method: 014
PROTECTION AGENCY
Source of
Traffic Count
EPA Region:
Point/Line/Area: POINT
Type
Road
ARTERIAL
Direction from
Site to Road
S
-------
Appendix A
2005 UATMP
Hexavalent Chromium
Report
SiteAQSID: 21-193-0003
Add ress: PERRY COUNTY HORSE PARK
State: KENTUCKY
Location Description:
Collection Method: INTERPOLATION-MAP
Date Established: 12/15/1999
Regional Eval Date:
MS A/CMS A:
Type Met Site:
U rban Area: NOT IN AN URBAN AREA
City Population:
Census Block:
Congressional District:
Site Latitude: 37.283056
UTMZone: 17
Accuracy: 0
Vertical Measure (m): 280
Vertical Datum: UNKNOWN
Site Comments:
Traffic Information:
Tangent Tangent
Road Road Name
1 WAYNE DAVIDSON RD
Air Quality Subsystem
Site Description
Page 10 of 23
Site ID: HAKY
Zip: -41701
Date Terminated:
HQ Eval Date:
Dist to Met Site (m): 77400
Dir. to CBD:
Block Group:
Site Longitude: -83.220278
UTM Northing: 4128405
Datum: NAD27
Vertical Accuracy: 0
Local ID: KAIRS 13
City: HAZARD
County: PERRY
Location Setting: SUBURBAN
Land Use: RESIDENTIAL
Last Updated:
AQCR: APPALACHIAN
Direct Met Site: SW
Local Region:
Dist to City (km):
Census Tract:
Class 1 Area:
Time Zone: EASTERN
UTM Easting: 303165
Scale: 24000
Vertical Method: 000
Met Site ID: 5626
EPA Region:
Point/Line/Area: POINT
Agency: KENTUCKY DIVISION FOR AIR QUALITY
Traffic
Count
500
Year of Traffic
Count
1999
Source of
Traffic Count
Type
Road
Direction from
Site to Road
LOCAL ST OR HY W
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Appendix A
2005 UATMP
Hexavalent Chromium
Report
Air Quality Subsystem
Site Description
Page 11 of 23
Site ID: BOMA
Zip: 02119
SiteAQSID: 25-025-0042
Address: HARRISON AVENUE
State: MASSACHUSETTS
Location Description:
Collection Method: GPS CODE (PSEUDO RANGE) PRECISE POSITION
Date Established: 12/15/1998 Date Terminated:
Regional Eval Date: HQ Eval Date:
MS A/CMS A: BOSTON-CAMBRIDGE-QUINCY, MA-NH
Distto Met Site (m):
Type Met Site:
Urban Area: BOSTON, MA
City Population:
Census Block:
Congressional District:
Site Latitude: 42.32944
UTMZone: 19
Accuracy: 15
Vertical Measure (m): 6
Vertical Datum: UNKNOWN
Dir. to CBD:
Block Group:
Local ID:
City: BOSTON
County: SUFFOLK
Location Setting: URBAN AND CENTER CITY
Land Use: COMMERCIAL
Last Updated: 01/13/2005
AQCR: METROPOLITAN BOSTON
Met Site ID:
Direct Met Site:
Local Region:
Dist to City (km):
Census Tract:
Class 1 Area:
Time Zone: EASTERN
UTM Easting: 328394
Scale: 24000
Vertical Method: 000
EPA Region:
Site Longitude: -71.082778
UTM Northing: 4688242
Datum:
Vertical Accuracy: 0
Agency: MASS DEPT ENVIRONMENTAL PROTECTION-DIV AIR QUALITY CONTROL
Site Comments: 2004 OCTOBER, SITE DOWN DUE TO TRAILER MOVE & WAITING FOR POWER REINSTALL
Traffic Information:
Tangent Traffic Year of Traffic
Road Name Count Count
1 HARRISON AVENUE 12785 1999 LOCAL ST OR HY
2 DUDLEY STREET 8502 1999 LOCAL ST OR HY
3 WARREN STREET 6000 2000 LOCAL ST OR HY
Point/Line/Area: POINT
Tangent
Road
Source of
Traffic Count
Type
Road
Direction from
Site to Road
E
S
W
-------
Appendix A
2005 UATMP
Hexavalent Chromium
Report
SiteAQSID: 26-163-0033
Address: 2842 WYOMING
State: MICHIGAN
Location Description:
Collection Method:
Date Established: 6/1/1990
Regional Eval Date:
Air Quality Subsystem
Site Description
Page 12 of 23
Site ID: DEMI
Zip: 48120
Date Terminated:
HQ Eval Date:
MSA/CMSA: DETROIT-WARREN-LIVONIA, MI
Type Met Site:
Urban Area: DETROIT, MI
City Population:
Census Block:
Congressional District:
Site Latitude: 42.30754
UTMZone: 17
Accuracy: 0
Vertical Measure (m): 0
Vertical Datum: UNKNOWN
Dist to Met Site (m):
Dir. to CBD:
Block Group:
Local ID:
City: DEARBORN
County: WAYNE
Location Setting: SUBURBAN
Land Use: INDUSTRIAL
Last Updated: 01/04/2005
AQCR: METROPOLITAN DETROIT-PORT HURON
Met Site ID:
Direct Met Site:
Local Region:
Dist to City (km):
Census Tract:
Class 1 Area:
Time Zone:
UTM Easting: 322825
Scale: 0
Vertical Method: 000
EPA Region:
Site Longitude: -83.14961
UTM Northing: 4685946
Datum:
Vertical Accuracy: 0
Agency: WAYNE COUNTY AIR POLLUTION CONTROL DIVISION
Site Comments: REPLACES SITE 32 AFTER RELOCATION
Traffic Information:
Tangent Traffic
Road Name Count
1 WYOMING 12791
Point/Line/Area: POINT
Tangent
Road
Year of Traffic
Count
1990
Source of
Traffic Count
Type
Road
LOCAL ST OR HY
Direction from
Site to Road
W
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Appendix A
2005 UATMP
Hexavalent Chromium
Report
SiteAQSID: 28-047-0008
Add ress: 47 Maple Street
State: MISSISSIPPI
Location Description:
Collection Method: INTERPOLATION-MAP
Date Established: 4/1/1999
Regional Eval Date:
MSA/CMSA: GULFPORT-BILOXI, MS
Type Met Site:
Urban Area: BILOXI-GULFPORT, MS
City Population:
Census Block:
Congressional District:
Site Latitude: 30.390139
UTM Zone: 16
Accuracy: 0
Vertical Measure (m): 0
Vertical Datum: UNKNOWN
Site Comments: PM2.5 TREND/SPECIATION
Traffic Information:
Air Quality Subsystem
Site Description
Page 13 of 23
Site ID: GPMS
Zip: 39507
Date Terminated:
HQ Eval Date:
Dist to Met Site (m):
Dir. to CBD:
Block Group:
Local ID:
City: GULFPORT
County: HARPJSON
Location Setting: RURAL
Land Use: COMMERCIAL
Last Updated: 11/30/2005
AQCR: MOBILE-PENSACOLA-PANAMA CITY-SOUTHERN MISSISSIPPI
Met Site ID:
Site Longitude: -89.049722
UTM Northing: 3363603
Datum:
Vertical Accuracy: 0
Agency: MISSISSIPPI DEQ, OFFICE OF POLLUTION
SITE
Direct Met Site:
Local Region:
Dist to City (km):
Census Tract:
Class 1 Area:
Time Zone:
UTM Easting: 303062
Scale: 24000
Vertical Method: 000
EPA Region:
Point/Line/Area: POINT
Tangent
Road
Tangent
Road Name
PASS ROAD
Traffic
Count
17000
Year of Traffic
Count
1995
Source of
Traffic Count
Type
Road
MAJ ST OR HY
Direction from
Site to Road
N
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Appendix A
2005 UATMP
Hexavalent Chromium
Report
Air Quality Subsystem
Site Description
Page 14 of 23
Site AQS ID: 29-510-0085 Site ID: S4MO
Address: BLAIR ST
State: MISSOURI Zip: 63107
Location Description:
Collection Method: ADDRESS MATCLflNG-OTHER
Date Established: 3/1/1999
Regional Eval Date:
MSA/CMSA: ST. LOUIS, MO-IL
Type Met Site:
Urban Area: ST. LOUIS, MO-IL
City Population:
Census Block:
Congressional District:
Site Latitude: 38.655556
UTMZone: 15
Accuracy: 303
Vertical Measure (m): 0
Vertical Datum: UNKNOWN
Date Terminated:
HQ Eval Date:
Distto Met Site (m):
Dir. to CBD:
Block Group:
Site Longitude: -90.198333
UTM Northing: 4282072
Datum: NAD27
Vertical Accuracy: 0
Local ID:
City: ST. LOUIS
County: ST. LOUIS
Location Setting: URBAN AND CENTER CITY
Land Use: RESIDENTIAL
Last Updated: 07/17/2003
AQCR: METROPOLITAN ST. LOUIS
Met Site ID:
Direct Met Site:
Local Region:
Dist to City (km):
Census Tract:
Class 1 Area:
Time Zone:
UTM Easting: 743801
Scale: 24000
Vertical Method: 000
EPA Region:
Point/Line/Area: POINT
Agency: ST LOUIS CITY DIVISION OF AIR POLLUTION CONTROL
Site Comments:
Traffic Information:
Tangent
Road
Tangent
Road Name
BLAIR STREET
Traffic
Count
22840
Year of Traffic
Count
1995
Source of
Traffic Count
Type
Road
LOCAL ST OR HY
Direction from
Site to Road
W
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Appendix A
2005 UATMP
Hexavalent Chromium
Report
Air Quality Subsystem
Site Description
Page 15 of 23
Site ID: LAOR
SiteAQSID: 41-061-0119
Address: 2806 N. ASH ST., LA GRANDE
State: OREGON
Location Description:
Collection Method: GPS CARRIER PHASE STATIC RELATIVE POSITION
Zip: 97850
Date Established: 12/10/2003
Regional Eval Date:
MS A/CMS A: LA GRANDE, OR
Type Met Site:
U rban Area: NOT IN AN URBAN AREA
City Population:
Census Block:
Congressional District: 5
Site Latitude: 45.338972
UTMZone: 11
Accuracy: 23
Vertical Measure (m): 848
Vertical Datum: UNKNOWN
Date Terminated:
HQ Eval Date:
Distto Met Site (m):
Dir. to CBD:
Block Group:
Local ID:
City: LA GRANDE
County: UNION
Location Setting: URBAN AND CENTER CITY
Land Use: RESIDENTIAL
Last Updated: 12/21/2005
AQCR: EASTERN OREGON
Direct Met Site:
Local Region:
Dist to City (km):
Census Tract:
Class 1 Area:
Time Zone: PACIFIC
UTM Easting: 429107
Scale: 24000
Vertical Method: 000
Met Site ID:
EPA Region:
Site Longitude: -117.904797
UTM Northing: 5020787
Datum: NAD83
Vertical Accuracy: 0.01
Agency: OREGON DEPARTMENT OF ENVIRONMENTAL QUALITY
Site Comments: SITE RELOCATED FROM 41-061-0017 BECAUSE OF PM2.5 SURVEY
Traffic Information:
Tangent Traffic Year of Traffic
Road Name Count Count
1 N. ASH ST. 55 2003
Point/Line/Area: POINT
Tangent
Road
Source of
Traffic Count
DOT
Type
Road
LOCAL ST OR HY
Direction from
Site to Road
E
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Appendix A
2005 UATMP
Hexavalent Chromium
Report
Air Quality Subsystem
Site Description
Page 16 of 23
SiteAQSID: 44-007-0022 Site ID: PRRI
Address: 212 PRAIRIE AVE, PROVIDENCE RI
State: RHODE ISLAND Zip: 02905
Location Description:
Collection Method: GPS CODE (PSEUDO RANGE) PRECISE POSITION
Date Established: 1/1/1999 Date Terminated:
Regional Eval Date: HQ Eval Date:
MS A/CMS A: PROVIDENCE-NEW BEDFORD-FALL RIVER, RI-MA
Type Met Site: Dist to Met Site (m):
Urban Area: PRO VIDENCE-PAWTUCKET, RI-MA
City Population:
Census Block:
Congressional District:
Site Latitude: 41.807949
UTMZone: 19
Accuracy: 15
Vertical Measure (m): 0
Vertical Datum: UNKNOWN
Dir. to CBD:
Block Group:
Site Longitude: -71.415
UTM Northing:
Datum:
Vertical Accuracy: 0
Local ID:
City: PROVIDENCE
County: PROVIDENCE
Location Setting: URBAN AND CENTER CITY
Land Use: RESIDENTIAL
Last Updated: 06/17/2004
AQCR: METROPOLITAN PROVIDENCE
Met Site ID:
Direct Met Site:
Local Region:
Dist to City (km):
Census Tract:
Class 1 Area:
Time Zone:
UTM Easting: 299383
Scale: 0
Vertical Method: 000
EPA Region:
Point/Line/Area: POINT
Agency: RHODE ISLAND DEM AND DOH
Site Comments:
Traffic Information:
Tangent
Road
Tangent
Road Name
PRAIRIE AVE
Traffic
Count
5500
Year of Traffic
Count
1996
Source of
Traffic Count
Type
Road
THRU ST OR HY
Direction from
Site to Road
W
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Appendix A
2005 UATMP
Hexavalent Chromium
Report
Air Quality Subsystem
Site Description
Page 17 of 23
Site ID: CHSC
Site AQS ID: 45-025-0001
Address: RT2BOX 100MCBEE (SC145)
State: SOUTH CAROLINA
Location Description:
Collection Method: GPS CARRIER PHASE STATIC RELATIVE POSITION
Zip: 29101
Date Established: 1/6/2000
Regional Eval Date:
MS A/CMS A:
Type Met Site:
U rban Area: NOT IN AN URBAN AREA
City Population:
Census Block:
Congressional District:
Site Latitude: 34.617119
UTMZone: 17
Accuracy: 0
Vertical Measure (m): 133
Vertical Datum: MEAN SEA-LEVEL
Date Terminated:
HQ Eval Date:
Distto Met Site (m):
Dir. toCBD: NNE
Block Group:
Local ID:
City: NOT IN A CITY
County: CHESTERFIELD
Location Setting: RURAL
Land Use: FOREST
Last Updated: 08/15/2005
AQCR: FLORENCE
Direct Met Site:
Local Region:
Dist to City (km): 14.5
Census Tract:
Class 1 Area:
Time Zone: EASTERN
UTM Easting: 573453
Scale: 24000
Vertical Method: 000
Met Site ID:
EPA Region:
Point/Line/Area: POINT
Site Longitude: -80.198789
UTM Northing: 3830681
Datum: NAD83
Vertical Accuracy: 0.03
Agency: SOUTH CAROLINA DEPARTMENT HEALTH AND ENVIRONMENTAL CONTROL
Site Comments: NEXT TO THE RUBY FIRE TOWER
Traffic Information:
Tangent Traffic
Road Name Count
1 HWY175 150
Tangent
Road
Year of Traffic
Count
2000
Source of
Traffic Count
Type
Road
THRU ST OR HY
Direction from
Site to Road
SE
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Appendix A
2005 UATMP
Hexavalent Chromium
Report
Air Quality Subsystem
Site Description
Page 18 of 23
Site ID: WETX
Zip: 78702
SiteAQSID: 48-453-7000
Add ress: 2600-B WEBBERVILLE ROAD
State: TEXAS
Location Description:
Collection Method: INTERPOLATION - DIGITAL MAP SRCE (TIGER)
Date Established: 6/15/2005 Date Terminated:
Regional Eval Date: HQ Eval Date:
MS A/CMS A: AUSTIN-ROUND ROCK, TX
Type Met Site:
Urban Area: AUSTIN, TX
City Population:
Census Block:
Congressional District:
Distto Met Site (m):
Dir. to CBD:
Block Group:
Site Latitude: 30.2632
UTMZone: 14
Accuracy: 40
Vertical Measure (m): 142
Vertical Datum: MEAN SEA-LEVEL
Site Comments:
Traffic Information:
Site Longitude: -97.7131
UTM Northing: 3348470
Datum: WGS84
Vertical Accuracy: 5
Agency: RADIAN CORPORATION
Local ID:
City: AUSTIN
County: TRAVIS
Location Setting: URBAN AND CENTER CITY
Land Use: RESIDENTIAL
Last Updated: 12/08/2005
AQCR: AUSTIN-WACO
Direct Met Site:
Local Region:
Dist to City (km):
Census Tract:
Class 1 Area:
Time Zone: CENTRAL
UTM Easting: 623797
Scale: 24000
Vertical Method: 0
Met Site ID:
EPA Region:
Point/Line/Area:
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Appendix A
2005 UATMP
Hexavalent Chromium
Report
Air Quality Subsystem
Site Description
Page 19 of 23
SiteAQSID: 49-011-0004 Site ID: BTUT
Address: 171 WEST 1370 NORTH, BOUNTIFUL, UTAH
State: UTAH
Location Description:
Collection Method: INTERPOLATION-MAP
Date Established: 7/12/2003
Regional Eval Date:
MS A/CMS A: OGDEN-CLEARFIELD, UT
Type Met Site:
Urban Area: SALT LAKE CITY, UT
City Population:
Census Block:
Congressional District:
Site Latitude: 40.902967
UTMZone: 12
Accuracy: 20
Vertical Measure (m): 1309
Vertical Datum: MEAN SEA-LEVEL
Zip: 84010
Date Terminated:
HQ Eval Date:
Dist to Met Site (m):
Dir. to CBD:
Block Group:
Local ID:
City: BOUNTIFUL
County: DAVIS
Location Setting: SUBURBAN
Land Use: RESIDENTIAL
Last Updated: 09/30/2003
AQCR: WASATCH FRONT
Direct Met Site:
Local Region:
Dist to City (km):
Census Tract:
Class 1 Area:
Time Zone:
UTM Easting: 425503
Scale: 24000
Vertical Method: 014
Met Site ID:
EPA Region:
Site Longitude: -111.884467
UTM Northing: 4528150
Datum: WGS84
Vertical Accuracy: 3
Agency: UTAH DEPARTMENT OF ENVIRONMENTAL QUALITY
Site Comments: NEW SITE TO REPLACE 490110001
Traffic Information:
Tangent Traffic Year of Traffic Source of
Road Name Count Count Traffic Count
1 200 WEST 7000 2001 DOT THRUST OR HY
Point/Line/Area: POINT
Tangent
Road
Type
Road
Direction from
Site to Road
W
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Appendix A
2005 UATMP
Hexavalent Chromium
Report
Air Quality Subsystem
Site Description
Page 20 of 23
Site ID: BURVT
SiteAQSID: 50-007-0014
Add ress: 150 SOUTH WINOOSKI AVENUE
State: VERMONT Zip: 05401
Location Description:
Collection Method: ADDRESS MATCfflNG-OTHER
Date Established: 1/15/2003 Date Terminated:
Regional Eval Date: HQ Eval Date:
MS A/CMS A: BURLINGTON-SOUTH BURLINGTON, VT
Type Met Site:
Urban Area: BURLINGTON, VT
City Population:
Census Block:
Congressional District:
Site Latitude: 44.476202
UTMZone: 18
Accuracy: 1
Vertical Measure (m): 63.1
Vertical Datum: MEAN SEA-LEVEL
Site Comments:
Traffic Information:
Local ID:
City: BURLINGTON
County: CfflTTENDEN
Location Setting: URBAN AND CENTER CITY
Land Use: COMMERCIAL
Last Updated: 10/15/2003
Distto Met Site (m):
Dir. to CBD:
Block Group:
Site Longitude: -73.210383
UTM Northing: 4926106
Datum: NAD27
Vertical Accuracy: 1
Agency: VERMONT AGENCY OF
AQCR: CHAMPLAIN VALLEY
Direct Met Site:
Local Region:
Dist to City (km):
Census Tract:
Class 1 Area:
Time Zone: EASTERN
UTM Easting: 642333
Scale: 1
Vertical Method: 8
ENVIRONMENTAL CONSERVATION
Met Site ID:
EPA Region:
Point/Line/Area:
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Appendix A
2005 UATMP
Hexavalent Chromium
Report
Air Quality Subsystem
Site Description
Page 21 of 23
Site AQS ID: 50-007-0007 Site ID: UNVT
Add ress: PROCTOR MAPLE RESEARCH FARM
State: VERMONT Zip: 05489
Location Description:
Collection Method:
Date Established: 5/1/1988 Date Terminated:
Regional Eval Date: HQ Eval Date:
MS A/CMS A: BURLINGTON-SOUTH BURLINGTON, VT
Type Met Site:
Urban Area: BURLINGTON, VT
City Population:
Census Block:
Congressional District:
Site Latitude: 44.5275
UTMZone: 18
Accuracy: 0
Vertical Measure (m): 342
Vertical Datum: UNKNOWN
Site Comments: 47-0180-001-F01
Traffic Information:
Distto Met Site (m):
Dir. toCBD: E
Block Group:
Site Longitude: -72.874444
UTM Northing: 4932445
Datum:
Vertical Accuracy: 0
Agency: VERMONT AGENCY OF
Local ID:
City: UNDERHILL (TOWN OF)
County: CFflTTENDEN
Location Setting: RURAL
Land Use: FOREST
Last Updated: 12/08/2004
AQCR: CHAMPLAIN VALLEY
Direct Met Site:
Local Region:
Dist to City (km):
Census Tract:
Class 1 Area:
Time Zone: EASTERN
UTM Easting: 668903
Scale: 0
Vertical Method: 000
ENVIRONMENTAL CONSERVATION
Met Site ID:
EPA Region:
Point/Line/Area: POINT
-------
Appendix A
2005 UATMP
Hexavalent Chromium
Report
Air Quality Subsystem
Site Description
Page 22 of 23
SiteAQSID: 53-033-0080 Site ID: SEWA
Address: BEACON HILL RESERVOIR/CHARLESTON & 15TH
State: WASHINGTON Zip: 98144
Location Description:
Collection Method:
Date Established: 6/4/1979 Date Terminated:
Regional Eval Date: HQ Eval Date:
MS A/CMS A: SEATTLE-TACOMA-BELLEVUE, WA
Type Met Site:
Urban Area: SEATTLE, WA
City Population:
Census Block:
Congressional District:
Site Latitude: 47.569722
UTMZone: 10
Accuracy: 0
Vertical Measure (m): 96
Vertical Datum: UNKNOWN
Distto Met Site (m):
Dir. toCBD: SE
Block Group:
Site Longitude: -122.3125
UTM Northing: 5268489
Datum:
Vertical Accuracy: 0
Agency: WASHINGTON STATE
Local ID:
City: SEATTLE
County: KING
Location Setting: SUBURBAN
Land Use: INDUSTRIAL
Last Updated:
AQCR: PUGET SOUND
Direct Met Site:
Local Region:
Dist to City (km): 5
Census Tract:
Class 1 Area:
Time Zone: PACIFIC
UTM Easting: 551711
Scale: 0
Vertical Method: 000
DEPARTMENT OF ECOLOGY
Met Site ID:
EPA Region:
Point/Line/Area: POINT
Site Comments: NAMS NO2 SITE ESTAB. 6-4-79; ML 8440E.
Traffic Information:
Tangent Traffic
Road Name Count
1 UNKNOWN 20000
Tangent
Road
Year of Traffic
Count
Source of
Traffic Count
Type
Road
Direction from
Site to Road
LOCAL ST OR HY UNK
-------
Appendix A
2005 UATMP
Hexavalent Chromium
Report
Air Quality Subsystem
Site Description
Page 23 of 23
Site AQS ID: 55-027-0007 Site ID: MVWI
Add ress: MAYVILLE, NEAR N6705 MADISON RD
State: WISCONSIN
Location Description:
Collection Method:
Date Established: 6/3/1994
Regional Eval Date:
MS A/CMS A: BEAVER DAM, WI
Type Met Site:
U rban Area: NOT IN AN URBAN AREA
City Population:
Census Block:
Congressional District:
Site Latitude: 43.435
UTMZone: 16
Accuracy: 30
Vertical Measure (m): 360
Vertical Datum: UNKNOWN
Zip: -53050
Date Terminated:
HQ Eval Date:
Dist to Met Site (m):
Dir. to CBD:
Block Group:
Local ID:
City: NOT IN A CITY
County: DODGE
Location Setting: RURAL
Land Use: AGRICULTURAL
Last Updated: 07/09/2003
AQCR: SOUTHERN WISCONSIN
Direct Met Site: Met Site ID:
Local Region:
Dist to City (km): EPA Region:
Census Tract:
Class 1 Area:
Time Zone: CENTRAL
UTM Easting: 376361
Scale: 24000
Vertical Method: 000
Site Longitude: -88.527778
UTM Northing: 4810036
Datum: NAD27
Vertical Accuracy: 0
Agency: WISCONSIN DEPT OF NATURAL RESOURCES, AIR MONITORING SECTION
Site Comments: TRAILER -150M W OF STATE PATROL RADIO TOWER, APPROX 450M W OF MADISON RD
Traffic Information:
Tangent Traffic Year of Traffic Source of
Road Name Count Count Traffic Count
1 MADISON RD 100 1994 DOT LOCAL ST OR HY
2 STH67 1630 1989 DOT THRUST OR HY
3 STH33 4260 1989 DOT THRUST OR HY
Point/Line/Area: POINT
Tangent
Road
Type
Road
Direction from
Site to Road
E
W
N
-------
Appendix B
2005 Invalid Hexavalent Chromium Samples
-------
Invalid Hexavalent Chromium Samples
Analysis Method
Date Sampled
Invalid Samples at BTUT
Sample Type Sample ID
Invalid Reason
Hexavalent Chromium
Hexavalent Chromium
Analysis Method
Hexavalent Chromium
Hexavalent Chromium
Hexavalent Chromium
Analysis Method
Hexavalent Chromium
Hexavalent Chromium
Hexavalent Chromium
Hexavalent Chromium
9/7/2005
11/18/2005
Date Sampled
4/4/2005
4/4/2005
12/24/2005
Date Sampled
2/9/2005
3/7/2005
4/10/2005
9/13/2005
Field Sample
Field Sample
Invalid Samples
Sample Type
Collocated -Cl
Collocated - C2
Field Sample
Invalid Samples
Sample Type
Field Sample
Field Sample
Field Sample
Field Sample
5091507-01
5112802-01
at BURVT
Sample ID
5040807-01
5040807-02
6010412-01
at CHSC
Sample ID
5021113-01
5031601-01
5041205-01
5100706-01
Power Failure
Lost or Damaged in Transit
Invalid Reason
Lab Error
Lab Error
Unable to Reach Site
Invalid Reason
Miscellaneous Void
Miscellaneous Void
Operator Error
Insufficient Data (Cannot Calculate)
Appendix B - Invalid Samples. 2005 UATMP Hexavalent Chromium Report
Page 1 of 6
-------
Invalid Samples at DEMI
Analysis Method
Hexavalent Chromium
Hexavalent Chromium
Hexavalent Chromium
Hexavalent Chromium
Hexavalent Chromium
Hexavalent Chromium
Hexavalent Chromium
Hexavalent Chromium
Analysis Method
Hexavalent Chromium
Analysis Method
Hexavalent Chromium
Date Sampled
1/22/2005
1/22/2005
6/9/2005
6/15/2005
8/20/2005
9/1/2005
10/25/2005
12/30/2005
Date Sampled
12/30/2005
Date Sampled
2/9/2005
Sample Type
Collocated -Cl
Collocated - C2
Field Sample
Field Sample
Field Sample
Field Sample
Field Sample
Field Sample
Invalid Samples
Sample Type
Field Sample
Invalid Samples
Sample Type
Field Sample
Sample ID
5012701-03
5012701-04
5061502-03
5062001-01
5082508-01
5090712-03
5102808-01
6010423-01
at ETAL
Sample ID
6010501-01
at GPCO
Sample ID
5021607-01
Invalid Reason
Machine Malfunction
Machine Malfunction
Voided by Operator
Lost or Damaged in Transit
Operator Error
Lost or Damaged in Transit
Sample Time Out of Limits
Voided by Operator
Invalid Reason
Machine Malfunction
Invalid Reason
Collection Error
Appendix B - Invalid Samples. 2005 UATMP Hexavalent Chromium Report
Page 2 of 6
-------
Analysis Method
Date Sampled
Invalid Samples at GPMS
Sample Type Sample ID
Invalid Reason
Hexavalent Chromium
Hexavalent Chromium
Analysis Method
Hexavalent Chromium
Analysis Method
Hexavalent Chromium
Hexavalent Chromium
Hexavalent Chromium
Analysis Method
Hexavalent Chromium
10/20/2005 Field Sample
11/27/2005 Field Sample
Invalid Samples
Date Sampled Sample Type
12/24/2005 Field Sample
Invalid Samples
Date Sampled Sample Type
4/4/2005 Field Sample
8/20/2005 Field Sample
9/19/2005 Field Sample
Invalid Samples
Date Sampled Sample Type
10/1/2005 Field Sample
5102503-04
5112910-20
at HAKY
Sample ID
6010415-01
at LAOR
Sample ID
5040705-01
5082321-01
5092311-01
atMVWI
Sample ID
5100419-01
Voided by Operator
Power Failure
Invalid Reason
Unable to Reach Site
Invalid Reason
Collection Error
Collection Error
Collection Error
Invalid Reason
Miscellaneous Void
Appendix B - Invalid Samples. 2005 UATMP Hexavalent Chromium Report
Page 3 of 6
-------
Invalid Samples at NBIL
Analysis Method
Hexavalent Chromium
Hexavalent Chromium
Hexavalent Chromium
Hexavalent Chromium
Hexavalent Chromium
Hexavalent Chromium
Analysis Method
Hexavalent Chromium
Analysis Method
Hexavalent Chromium
Hexavalent Chromium
Date Sampled
1/16/2005
2/9/2005
2/21/2005
2/21/2005
11/24/2005
11/24/2005
Date Sampled
12/12/2005
Date Sampled
9/1/2005
9/13/2005
Sample Type
Field Sample
Field Sample
Collocated -Cl
Collocated - C2
Collocated -Cl
Collocated - C2
Invalid Samples
Sample Type
Field Sample
Invalid Samples
Sample Type
Field Sample
Field Sample
Sample ID
5011804-01
5021105-01
5022305-01
5022305-02
5112801-01
5112801-02
at PRRI
Sample ID
5122012-02
at PVAL
Sample ID
5091311-01
5092218-04
Invalid Reason
Construction/Repairs in Area
Construction/Repairs in Area
Construction/Repairs in Area
Construction/Repairs in Area
Lost or Damaged in Transit
Lost or Damaged in Transit
Invalid Reason
Power Failure
Invalid Reason
Sample Time Out of Limits
Sample Time Out of Limits
Appendix B - Invalid Samples. 2005 UATMP Hexavalent Chromium Report
Page 4 of 6
-------
Invalid Samples at S4MO
Analysis Method
Hexavalent Chromium
Hexavalent Chromium
Hexavalent Chromium
Analysis Method
Hexavalent Chromium
Analysis Method
Hexavalent Chromium
Analysis Method
Hexavalent Chromium
Hexavalent Chromium
Date Sampled
5/10/2005
6/15/2005
11/24/2005
Date Sampled
9/19/2005
Date Sampled
1/16/2005
Date Sampled
8/8/2005
8/26/2005
Sample Type
Collocated -Cl
Field Sample
Collocated -Cl
Invalid Samples
Sample Type
Field Sample
Invalid Samples
Sample Type
Field Sample
Invalid Samples
Sample Type
Field Sample
Field Sample
Sample ID
5051318-01
5062101-02
5112916-05
at SDGA
Sample ID
5092306-01
at SEWA
Sample ID
5012014-01
at SYFL
Sample ID
5081118-02
5083101-02
Invalid Reason
Interference/Co-Elution
Voided by Operator
Miscellaneous Void
Invalid Reason
Technician Unavailable
Invalid Reason
Machine Malfunction
Invalid Reason
Lab Error
Power Failure
Appendix B - Invalid Samples. 2005 UATMP Hexavalent Chromium Report
Page 5 of 6
-------
Invalid Samples at UNVT
Analysis Method
Hexavalent Chromium
Hexavalent Chromium
Hexavalent Chromium
Hexavalent Chromium
Analysis Method
Hexavalent Chromium
Analysis Method
Hexavalent Chromium
Hexavalent Chromium
Hexavalent Chromium
Date Sampled
9/7/2005
10/25/2005
10/31/2005
12/24/2005
Date Sampled
9/13/2005
Date Sampled
6/27/2005
8/26/2005
11/18/2005
Sample Type
Field Sample
Field Sample
Field Sample
Field Sample
Invalid Samples
Sample Type
Field Sample
Invalid Samples
Sample Type
Field Sample
Field Sample
Field Sample
Sample ID
5091304-01
5102803-01
5110410-01
6010409-01
at WADC
Sample ID
5091502-01
at WETX
Sample ID
5063001-01
5090605-04
5112803-01
Invalid Reason
Lab Error
Power Failure
Miscellaneous Void
Unable to Reach Site
Invalid Reason
Lab Error
Invalid Reason
Collection Error
Lost or Damaged in Transit
Lost or Damaged in Transit
Appendix B - Invalid Samples. 2005 UATMP Hexavalent Chromium Report
Page 6 of 6
-------
Appendix C
2005 Hexavalent Chromium Sampling Results
-------
Appendix C - 2005 UATMP
Hexavalent Chromium Report
BOMA Hexavalent Chromium Sampling Results
Page 1 of57
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
1/10/2005
Field Sample
5011401-01
ng/m3
ND
1/16/2005
Field Sample
5012003-01
ng/m3
ND
1/22/2005
Collocated - Cl
5020101-01
ng/m3
0.0216
1/22/2005
Collocated - C2
5020101-02
ng/m3
0.0115
1/28/2005
Field Sample
5020201-01
ng/m3
ND
2/3/2005
Field Sample
5020804-01
ng/m3
0.0259
2/9/2005
Field Sample
5021110-01
ng/m3
ND
2/15/2005
Field Sample
5021707-01
ng/m3
ND
2/21/2005
Collocated - Cl
5022304-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
2/21/2005
Collocated - C2
5022304-02
ng/m3
0.0322
2/27/2005
Field Sample
5030301-01
ng/m3
0.0394
3/5/2005
Field Sample
5030812-01
ng/m3
ND
3/11/2005
Field Sample
5031504-01
ng/m3
0.0849
3/17/2005
Field Sample
5032205-01
ng/m3
0.0593
3/23/2005
Field Sample
5032504-01
ng/m3
0.0948
3/29/2005
Field Sample
5040104-01
ng/m3
0.0474
4/4/2005
Field Sample
5040702-01
ng/m3
ND
4/10/2005
Field Sample
5041403-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
4/16/2005
Field Sample
5042004-01
ng/m3
ND
4/22/2005
Field Sample
5042603-01
ng/m3
0.0412
4/28/2005
Field Sample
5050302-01
ng/m3
0.0397
5/4/2005
Field Sample
5050620-01
ng/m3
0.183
5/10/2005
Collocated - Cl
5051319-01
ng/m3
0.174
5/10/2005
Collocated - C2
5051319-02
ng/m3
0.185
5/16/2005
Field Sample
5051903-01
ng/m3
0.0520
5/22/2005
Field Sample
5052504-01
ng/m3
0.0992
6/3/2005
Field Sample
5060722-01
ng/m3
Hexavalent Chromium
0.0367
Hexavalent Chromium
0.0347
Hexavalent Chromium
0.0958
-------
Appendix C - 2005 UATMP
Hexavalent Chromium Report
BOMA Hexavalent Chromium Sampling Results
Page 2 of57
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
6/9/2005
Field Sample
5061424-01
ng/m3
0.151
6/15/2005
Field Sample
5062107-01
ng/m3
0.0622
6/21/2005
Collocated - Cl
5062306-01
ng/m3
0.0367
6/21/2005
Collocated - C2
5062306-02
ng/m3
ND
6/27/2005
Field Sample
5062907-01
ng/m3
0.0604
7/3/2005
Field Sample
5070705-01
ng/m3
0.111
7/9/2005
Field Sample
5071219-01
ng/m3
0.0417
7/15/2005
Field Sample
5071909-01
ng/m3
0.0612
7/21/2005
Field Sample
5072801-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
7/27/2005
Field Sample
5072902-01
ng/m3
ND
8/2/2005
Field Sample
5080411-02
ng/m3
0.0331
8/8/2005
Field Sample
5081001-01
ng/m3
0.0402
8/14/2005
Field Sample
5081612-01
ng/m3
0.269
8/20/2005
Field Sample
5082317-01
ng/m3
0.0250
8/26/2005
Field Sample
5083014-01
ng/m3
0.0277
9/1/2005
Field Sample
5090702-01
ng/m3
0.0649
9/7/2005
Field Sample
5091306-01
ng/m3
ND
9/13/2005
Field Sample
5091606-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
9/19/2005
Field Sample
5092101-01
ng/m3
0.0414
9/25/2005
Field Sample
5092903-01
ng/m3
0.0845
10/1/2005
Field Sample
5100424-01
ng/m3
0.0362
10/7/2005
Field Sample
5101211-01
ng/m3
0.257
10/13/2005
Collocated - Cl
5101819-01
ng/m3
0.0607
10/13/2005
Collocated - C2
5101819-02
ng/m3
0.0478
10/19/2005
Field Sample
5102510-01
ng/m3
0.0481
10/25/2005
Field Sample
5102805-01
ng/m3
0.0857
10/31/2005
Collocated - Cl
5110212-01
ng/m3
Hexavalent Chromium
ND
Hexavalent Chromium
0.0780
Hexavalent Chromium
ND
-------
Appendix C - 2005 UATMP
Hexavalent Chromium Report
BOMA Hexavalent Chromium Sampling Results
Page 3 of57
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
10/31/2005
Collocated - C2
5110212-02
ng/m3
ND
1 1/6/2005
Collocated - Cl
5110815-01
ng/m3
0.129
1 1/6/2005
Collocated - C2
5110815-02
ng/m3
0.0932
11/12/2005
Field Sample
5111516-01
ng/m3
0.0296
11/18/2005
Field Sample
5112215-01
ng/m3
ND
11/24/2005
Collocated - Cl
5113006-01
ng/m3
0.0238
11/24/2005
Collocated - C2
5113006-02
ng/m3
0.0254
11/30/2005
Field Sample
5120243-02
ng/m3
0.151
12/6/2005
Field Sample
5120815-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
12/12/2005
Field Sample
5121512-01
ng/m3
0.0178
12/18/2005
Field Sample
5122014-01
ng/m3
0.0267
12/24/2005
Field Sample
5122815-01
ng/m3
0.0277
12/30/2005
Field Sample
6010434-01
ng/m3
0.0445
Hexavalent Chromium
0.0168
-------
Appendix C - 2005 UATMP
Hexavalent Chromium Report
BTUT Hexavalent Chromium Sampling Results
Page 4 of57
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
1/16/2005
Field Sample
5011902-03
ng/m3
ND
1/22/2005
Field Sample
5012602-01
ng/m3
ND
1/28/2005
Field Sample
5020108-01
ng/m3
0.0291
2/3/2005
Field Sample
5020803-01
ng/m3
0.0144
2/10/2005
Field Sample
5021506-01
ng/m3
0.0266
2/15/2005
Field Sample
5021801-01
ng/m3
ND
2/21/2005
Field Sample
5022501-01
ng/m3
0.0269
2/27/2005
Field Sample
5030201-01
ng/m3
0.0791
3/5/2005
Field Sample
5030809-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
3/11/2005
Field Sample
5031501-01
ng/m3
0.0179
3/17/2005
Field Sample
5032201-01
ng/m3
ND
3/23/2005
Field Sample
5032505-01
ng/m3
ND
3/29/2005
Field Sample
5040101-02
ng/m3
0.0227
4/4/2005
Field Sample
5040803-01
ng/m3
0.0133
4/10/2005
Field Sample
5041305-01
ng/m3
0.0035
4/16/2005
Field Sample
5042007-01
ng/m3
0.0320
4/22/2005
Field Sample
5042704-01
ng/m3
0.0173
4/28/2005
Field Sample
5050501-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
5/4/2005
Field Sample
5051002-01
ng/m3
0.0375
5/10/2005
Field Sample
5051314-01
ng/m3
0.0498
5/17/2005
Field Sample
5052004-01
ng/m3
0.0477
5/22/2005
Field Sample
5052506-01
ng/m3
0.0039
5/28/2005
Field Sample
5060111-01
ng/m3
0.0344
6/3/2005
Field Sample
5060703-01
ng/m3
ND
6/9/2005
Field Sample
5061420-01
ng/m3
ND
6/15/2005
Field Sample
5062106-01
ng/m3
0.0245
6/21/2005
Field Sample
5062407-01
ng/m3
Hexavalent Chromium
ND
Hexavalent Chromium
ND
Hexavalent Chromium
ND
-------
Appendix C - 2005 UATMP
Hexavalent Chromium Report
BTUT Hexavalent Chromium Sampling Results
Page 5 of57
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
6/27/2005
Field Sample
5063004-01
ng/m3
ND
7/3/2005
Field Sample
5070605-01
ng/m3
0.0628
7/9/2005
Field Sample
5071209-04
ng/m3
ND
7/15/2005
Field Sample
5072008-01
ng/m3
ND
7/21/2005
Field Sample
5072702-03
ng/m3
0.0438
7/27/2005
Field Sample
5072903-03
ng/m3
0.0207
8/2/2005
Field Sample
5080505-01
ng/m3
0.0174
8/8/2005
Field Sample
5081202-04
ng/m3
0.0171
8/14/2005
Field Sample
5082314-03
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
8/20/2005
Field Sample
5082314-04
ng/m3
0.0217
8/26/2005
Field Sample
5083009-01
ng/m3
0.0208
9/1/2005
Field Sample
5090710-03
ng/m3
ND
9/7/2005
Field Sample
5091507-01
ng/m3
9/13/2005
Field Sample
5091904-01
ng/m3
ND
9/19/2005
Field Sample
5092207-04
ng/m3
0.0328
9/25/2005
Field Sample
5092801-01
ng/m3
ND
10/1/2005
Field Sample
5100541-01
ng/m3
0.0232
10/7/2005
Field Sample
5101402-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
10/13/2005
Field Sample
5101906-01
ng/m3
0.0378
10/19/2005
Field Sample
5102505-01
ng/m3
0.0421
10/27/2005
Field Sample
5110408-01
ng/m3
ND
10/31/2005
Field Sample
5110205-01
ng/m3
0.0336
11/6/2005
Field Sample
5110908-01
ng/m3
ND
11/12/2005
Field Sample
5111614-01
ng/m3
0.0285
11/18/2005
Field Sample
5112802-01
ng/m3
11/24/2005
Field Sample
5113007-01
ng/m3
0.0246
11/30/2005
Field Sample
5120238-01
ng/m3
Hexavalent Chromium
0.0387
Hexavalent Chromium
0.0610
Hexavalent Chromium
0.0179
-------
Appendix C - 2005 UATMP
Hexavalent Chromium Report
BTUT Hexavalent Chromium Sampling Results
Page 6 of57
Sample Date:
Sample Type:
ID:
Units
12/6/2005
Field Sample
5120913-01
ng/m3
Hexavalent Chromium
0.0095
Sample Date:
Sample Type:
ID:
Units
12/12/2005
Field Sample
5121513-01
ng/m3
Hexavalent Chromium
0.0455
Sample Date:
Sample Type:
ID:
Units
12/18/2005
Field Sample
5122111-04
ng/m3
Hexavalent Chromium
0.0280
Sample Date:
Sample Type:
ID:
Units
12/24/2005
Field Sample
5122811-02
ng/m3
Hexavalent Chromium
ND
Sample Date:
Sample Type:
ID:
Units
12/30/2005
Field Sample
6010604-03
ng/m3
Hexavalent Chromium
0.0220
-------
Appendix C - 2005 UATMP
Hexavalent Chromium Report
BURVT Hexavalent Chromium Sampling Results
Page 7 of57
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
1/22/2005
Collocated - Cl
5012601-01
ng/m3
0.0114
1/22/2005
Collocated - C2
5012601-02
ng/m3
ND
1/28/2005
Collocated - Cl
5020205-01
ng/m3
ND
1/28/2005
Collocated - C2
5020205-02
ng/m3
ND
2/9/2005
Field Sample
5021608-02
ng/m3
0.0172
2/15/2005
Field Sample
5021809-02
ng/m3
0.0025
2/21/2005
Collocated - Cl
5022507-01
ng/m3
ND
2/21/2005
Collocated - C2
5022507-02
ng/m3
ND
2/27/2005
Collocated - Cl
5030303-03
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
2/27/2005
Collocated - C2
5030303-01
ng/m3
0.0520
3/5/2005
Collocated - Cl
5030814-01
ng/m3
0.0454
3/5/2005
Collocated - C2
5030814-02
ng/m3
0.0425
3/11/2005
Collocated - Cl
5031506-01
ng/m3
0.0197
3/11/2005
Collocated - C2
5031506-02
ng/m3
ND
3/17/2005
Field Sample
5032210-01
ng/m3
0.0358
3/23/2005
Field Sample
5032904-02
ng/m3
0.0234
3/29/2005
Collocated - Cl
5040108-01
ng/m3
0.0361
3/29/2005
Collocated - C2
5040108-02
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
4/4/2005
Collocated - Cl
5040807-01
ng/m3
4/4/2005
Collocated - C2
5040807-02
ng/m3
4/10/2005
Collocated - Cl
5041402-01
ng/m3
0.0468
4/10/2005
Collocated - C2
5041402-02
ng/m3
0.0332
4/16/2005
Field Sample
5041903-01
ng/m3
0.106
4/22/2005
Field Sample
5042703-01
ng/m3
ND
4/28/2005
Field Sample
5050401-02
ng/m3
0.0230
5/4/2005
Collocated - Cl
5051102-01
ng/m3
0.0965
5/4/2005
Collocated - C2
5051102-02
ng/m3
Hexavalent Chromium
0.0584
Hexavalent Chromium
0.0341
Hexavalent Chromium
0.0794
-------
Appendix C - 2005 UATMP
Hexavalent Chromium Report
BURVT Hexavalent Chromium Sampling Results
Page 8 of57
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
5/10/2005
Collocated - Cl
5051316-01
ng/m3
0.0774
5/10/2005
Collocated - C2
5051316-02
ng/m3
0.0762
5/16/2005
Field Sample
5052002-01
ng/m3
0.0557
5/22/2005
Field Sample
5052508-01
ng/m3
0.100
5/28/2005
Field Sample
5060112-01
ng/m3
0.137
6/3/2005
Field Sample
5060720-01
ng/m3
0.0595
6/9/2005
Field Sample
5061423-01
ng/m3
0.108
6/15/2005
Field Sample
5062105-01
ng/m3
0.138
6/21/2005
Collocated - Cl
5062405-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
6/21/2005
Collocated - C2
5062405-02
ng/m3
0.0279
6/27/2005
Field Sample
5063002-01
ng/m3
0.0536
7/3/2005
Field Sample
5070704-01
ng/m3
0.0486
7/9/2005
Field Sample
5071211-01
ng/m3
0.114
7/15/2005
Field Sample
5072005-01
ng/m3
ND
7/21/2005
Field Sample
5072607-01
ng/m3
0.0529
7/27/2005
Field Sample
5080213-01
ng/m3
0.119
8/2/2005
Field Sample
5080510-01
ng/m3
0.0465
8/8/2005
Field Sample
5081103-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
8/14/2005
Field Sample
5081809-01
ng/m3
0.0755
8/20/2005
Field Sample
5082403-01
ng/m3
ND
8/26/2005
Field Sample
5083010-01
ng/m3
0.0297
9/1/2005
Field Sample
5090707-01
ng/m3
ND
9/7/2005
Field Sample
5091303-01
ng/m3
ND
9/13/2005
Field Sample
5091601-01
ng/m3
ND
9/19/2005
Field Sample
5092704-01
ng/m3
0.0688
9/25/2005
Field Sample
5092907-01
ng/m3
0.0473
10/1/2005
Field Sample
5100422-01
ng/m3
Hexavalent Chromium
0.111
Hexavalent Chromium
0.0286
Hexavalent Chromium
0.128
-------
Appendix C - 2005 UATMP
Hexavalent Chromium Report
BURVT Hexavalent Chromium Sampling Results
Page 9 of57
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
10/7/2005
Field Sample
5101308-01
ng/m3
0.115
10/13/2005
Collocated - Cl
5101901-01
ng/m3
0.133
10/13/2005
Collocated - C2
5101901-02
ng/m3
0.131
10/19/2005
Field Sample
5102608-01
ng/m3
ND
10/25/2005
Field Sample
5102802-01
ng/m3
0.147
10/31/2005
Field Sample
5110411-01
ng/m3
0.0605
1 1/6/2005
Field Sample
5110906-01
ng/m3
ND
11/12/2005
Field Sample
5111508-01
ng/m3
0.114
11/18/2005
Field Sample
5112304-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
11/24/2005
Collocated - Cl
5112923-01
ng/m3
ND
11/24/2005
Collocated - C2
5112923-02
ng/m3
0.0028
11/30/2005
Field Sample
5120610-01
ng/m3
0.0538
12/6/2005
Field Sample
5121414-01
ng/m3
0.0266
12/12/2005
Field Sample
5121609-01
ng/m3
0.0319
12/18/2005
Field Sample
5122119-01
ng/m3
0.0170
12/24/2005
Field Sample
6010412-01
ng/m3
12/30/2005
Field Sample
6010412-02
ng/m3
0.0317
Hexavalent Chromium
0.0155
-------
Appendix C - 2005 UATMP
Hexavalent Chromium Report
CHSC Hexavalent Chromium Sampling Results
Page 10 of 57
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
1/16/2005
Field Sample
5012004-01
ng/m3
ND
1/22/2005
Collocated - Cl
5012509-01
ng/m3
ND
1/22/2005
Collocated - C2
5012509-02
ng/m3
ND
1/28/2005
Field Sample
5020102-01
ng/m3
ND
2/3/2005
Field Sample
5020801-01
ng/m3
ND
2/9/2005
Field Sample
5021113-01
ng/m3
2/15/2005
Field Sample
5021706-01
ng/m3
ND
2/21/2005
Collocated - Cl
5022303-01
ng/m3
ND
2/21/2005
Collocated - C2
5022303-02
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
2/27/2005
Field Sample
5030205-01
ng/m3
0.0192
3/7/2005
Field Sample
5031601-01
ng/m3
3/11/2005
Field Sample
5031401-01
ng/m3
ND
3/17/2005
Field Sample
5032102-01
ng/m3
ND
3/23/2005
Field Sample
5032503-01
ng/m3
0.147
3/29/2005
Field Sample
5033108-01
ng/m3
ND
4/4/2005
Field Sample
5040601-01
ng/m3
0.0059
4/10/2005
Field Sample
5041205-01
ng/m3
4/16/2005
Field Sample
5042006-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
4/22/2005
Field Sample
5042604-01
ng/m3
ND
4/28/2005
Field Sample
5050202-01
ng/m3
ND
5/4/2005
Field Sample
5050613-01
ng/m3
ND
5/10/2005
Collocated - Cl
5051212-01
ng/m3
0.0473
5/10/2005
Collocated - C2
5051212-02
ng/m3
0.0987
5/16/2005
Field Sample
5051806-01
ng/m3
0.0399
5/22/2005
Field Sample
5052406-01
ng/m3
0.0110
5/28/2005
Field Sample
5060104-01
ng/m3
0.0201
6/3/2005
Field Sample
5060719-01
ng/m3
Hexavalent Chromium
ND
Hexavalent Chromium
ND
Hexavalent Chromium
0.0369
-------
Appendix C - 2005 UATMP
Hexavalent Chromium Report
CHSC Hexavalent Chromium Sampling Results
Page 11 of 57
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
6/9/2005
Field Sample
5061302-01
ng/m3
ND
6/15/2005
Field Sample
5061705-01
ng/m3
0.0378
6/21/2005
Collocated - Cl
5062301-01
ng/m3
ND
6/21/2005
Collocated - C2
5062301-02
ng/m3
ND
6/27/2005
Field Sample
5062906-01
ng/m3
ND
7/3/2005
Field Sample
5070609-01
ng/m3
0.0582
7/9/2005
Field Sample
5071216-01
ng/m3
0.0448
7/15/2005
Field Sample
5071914-01
ng/m3
ND
7/21/2005
Field Sample
5072502-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
7/27/2005
Field Sample
5072905-01
ng/m3
ND
8/2/2005
Field Sample
5080413-01
ng/m3
0.0209
8/8/2005
Field Sample
5081002-01
ng/m3
0.0277
8/14/2005
Field Sample
5081615-01
ng/m3
ND
8/20/2005
Field Sample
5082318-01
ng/m3
ND
8/26/2005
Field Sample
5083012-01
ng/m3
ND
9/1/2005
Field Sample
5090607-01
ng/m3
0.0441
9/7/2005
Field Sample
5091401-01
ng/m3
ND
9/13/2005
Field Sample
5100706-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
9/19/2005
Field Sample
5092105-01
ng/m3
ND
9/25/2005
Field Sample
5092709-01
ng/m3
0.0534
10/1/2005
Field Sample
5100418-01
ng/m3
ND
10/7/2005
Field Sample
5101108-01
ng/m3
0.0205
10/13/2005
Collocated - Cl
5101705-01
ng/m3
ND
10/13/2005
Collocated - C2
5101705-02
ng/m3
ND
10/19/2005
Field Sample
5102104-01
ng/m3
0.0153
10/25/2005
Field Sample
5102713-01
ng/m3
ND
10/31/2005
Field Sample
5110204-01
ng/m3
Hexavalent Chromium
0.0331
Hexavalent Chromium
Hexavalent Chromium
ND
-------
Appendix C - 2005 UATMP
Hexavalent Chromium Report
CHSC Hexavalent Chromium Sampling Results
Page 12 of 57
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
11/6/2005
Field Sample
5110812-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
12/24/2005
Field Sample
5122905-01
ng/m3
ND
Hexavalent Chromium
0.0160
Sample Date:
Sample Type:
ID:
Units
11/12/2005
Field Sample
5111512-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
12/30/2005
Field Sample
6010432-01
ng/m3
Hexavalent Chromium
ND
Hexavalent Chromium
0.0151
Sample Date:
Sample Type:
ID:
Units
11/18/2005
Field Sample
5112214-01
ng/m3
Hexavalent Chromium
ND
Sample Date:
Sample Type:
ID:
Units
11/24/2005
Collocated - Cl
5112926-01
ng/m3
Hexavalent Chromium
ND
Sample Date:
Sample Type:
ID:
Units
11/24/2005
Collocated - C2
5112926-02
ng/m3
Hexavalent Chromium
ND
Sample Date:
Sample Type:
ID:
Units
11/30/2005
Field Sample
5120236-01
ng/m3
Hexavalent Chromium
ND
Sample Date:
Sample Type:
ID:
Units
12/6/2005
Field Sample
5120817-01
ng/m3
Hexavalent Chromium
0.0170
Sample Date:
Sample Type:
ID:
Units
12/12/2005
Field Sample
5121514-01
ng/m3
Hexavalent Chromium
0.0110
Sample Date:
Sample Type:
ID:
Units
12/18/2005
Field Sample
5122010-01
ng/m3
Hexavalent Chromium
ND
-------
Appendix C - 2005 UATMP
Hexavalent Chromium Report
DEMI Hexavalent Chromium Sampling Results
Page 13 of 57
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
1/10/2005
Field Sample
5011203-01
ng/m3
0.0360
1/16/2005
Field Sample
5012005-01
ng/m3
ND
1/22/2005
Collocated - Cl
5012701-03
ng/m3
1/22/2005
Collocated - C2
5012701-04
ng/m3
1/28/2005
Field Sample
5020203-01
ng/m3
0.0055
2/3/2005
Field Sample
5020901-01
ng/m3
0.0309
2/9/2005
Field Sample
5021112-01
ng/m3
ND
2/15/2005
Field Sample
5021709-01
ng/m3
0.0752
2/21/2005
Collocated - Cl
5022302-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
2/21/2005
Collocated - C2
5022302-02
ng/m3
ND
2/27/2005
Field Sample
5030103-01
ng/m3
ND
3/5/2005
Field Sample
5030911-01
ng/m3
ND
3/11/2005
Field Sample
5031511-01
ng/m3
0.0334
3/17/2005
Field Sample
5032206-01
ng/m3
ND
3/23/2005
Field Sample
5032501-01
ng/m3
0.0805
3/29/2005
Field Sample
5040102-01
ng/m3
0.0742
4/4/2005
Field Sample
5040603-01
ng/m3
0.0587
4/10/2005
Field Sample
5041202-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
4/16/2005
Field Sample
5041905-01
ng/m3
0.146
4/22/2005
Field Sample
5042607-01
ng/m3
0.102
4/28/2005
Field Sample
5050403-01
ng/m3
ND
5/4/2005
Field Sample
5050615-01
ng/m3
0.0714
5/10/2005
Collocated - Cl
5051215-01
ng/m3
0.142
5/10/2005
Collocated - C2
5051215-02
ng/m3
0.110
5/16/2005
Field Sample
5051808-01
ng/m3
0.0654
5/22/2005
Field Sample
5052407-01
ng/m3
0.0854
5/28/2005
Field Sample
5060105-01
ng/m3
Hexavalent Chromium
0.0330
Hexavalent Chromium
0.0464
Hexavalent Chromium
0.0792
-------
Appendix C - 2005 UATMP
Hexavalent Chromium Report
DEMI Hexavalent Chromium Sampling Results
Page 14 of 57
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
6/3/2005
Field Sample
5060715-01
ng/m3
0.0659
6/9/2005
Field Sample
5061502-03
ng/m3
6/15/2005
Field Sample
5062001-01
ng/m3
6/21/2005
Collocated - Cl
5062308-01
ng/m3
0.125
6/21/2005
Collocated - C2
5062308-02
ng/m3
0.147
6/27/2005
Field Sample
5062905-02
ng/m3
0.0902
7/3/2005
Field Sample
5070707-01
ng/m3
0.0891
7/9/2005
Field Sample
5072004-03
ng/m3
ND
7/15/2005
Field Sample
5072004-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
7/21/2005
Field Sample
5072608-01
ng/m3
0.0739
7/27/2005
Field Sample
5072906-01
ng/m3
0.0265
8/2/2005
Field Sample
5080410-01
ng/m3
0.0514
8/8/2005
Field Sample
5081003-01
ng/m3
0.0889
8/14/2005
Field Sample
5081905-01
ng/m3
ND
8/20/2005
Field Sample
5082508-01
ng/m3
8/26/2005
Field Sample
5090109-01
ng/m3
0.0665
9/1/2005
Field Sample
5090712-03
ng/m3
9/7/2005
Field Sample
5090903-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
9/13/2005
Field Sample
5091501-01
ng/m3
0.0619
9/19/2005
Field Sample
5092203-03
ng/m3
0.0616
9/25/2005
Field Sample
5092702-01
ng/m3
0.0776
10/1/2005
Field Sample
5100601-01
ng/m3
0.0861
10/7/2005
Field Sample
5101218-01
ng/m3
0.0545
10/13/2005
Collocated - Cl
5101909-01
ng/m3
0.0791
10/13/2005
Collocated - C2
5101909-02
ng/m3
0.0783
10/19/2005
Field Sample
5102107-01
ng/m3
0.0680
10/25/2005
Field Sample
5102808-01
ng/m3
Hexavalent Chromium
0.0418
Hexavalent Chromium
0.105
Hexavalent Chromium
-------
Appendix C - 2005 UATMP
Hexavalent Chromium Report
DEMI Hexavalent Chromium Sampling Results
Page 15 of 57
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
10/31/2005
Field Sample
5110206-01
ng/m3
0.0604
1 1/6/2005
Field Sample
5110805-01
ng/m3
0.0581
11/12/2005
Field Sample
5111615-01
ng/m3
0.0765
11/18/2005
Field Sample
5112302-01
ng/m3
0.0271
11/24/2005
Collocated - Cl
5120228-01
ng/m3
0.0253
11/24/2005
Collocated - C2
5120228-02
ng/m3
0.0190
11/30/2005
Field Sample
5120228-03
ng/m3
0.0268
12/6/2005
Field Sample
5120813-01
ng/m3
0.0338
12/12/2005
Field Sample
5121608-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
12/18/2005
Field Sample
5122123-01
ng/m3
0.0580
12/24/2005
Field Sample
5122813-01
ng/m3
0.0882
12/30/2005
Field Sample
6010423-01
ng/m3
Hexavalent Chromium
0.0387
-------
Appendix C - 2005 UATMP
Hexavalent Chromium Report
ETAL Hexavalent Chromium Sampling Results
Page 16 of 57
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
7/15/2005
Field Sample
5071904-04
ng/m3
0.0296
7/21/2005
Field Sample
5072708-04
ng/m3
0.0813
7/27/2005
Field Sample
5072908-04
ng/m3
0.0380
8/8/2005
Field Sample
5081203-04
ng/m3
0.0618
8/20/2005
Field Sample
5082502-04
ng/m3
0.0347
9/1/2005
Field Sample
5091308-01
ng/m3
ND
9/13/2005
Field Sample
5092217-04
ng/m3
0.0761
9/25/2005
Field Sample
5100409-01
ng/m3
ND
10/7/2005
Field Sample
5101212-04
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
10/19/2005
Field Sample
5102707-01
ng/m3
ND
11/1/2005
Field Sample
5110335-01
ng/m3
ND
11/12/2005
Field Sample
5111805-01
ng/m3
0.0686
11/24/2005
Collocated - Cl
5113005-01
ng/m3
0.0204
11/24/2005
Collocated - C2
5113005-02
ng/m3
0.0148
12/6/2005
Field Sample
5120909-01
ng/m3
0.0557
12/18/2005
Field Sample
5122108-06
ng/m3
0.0414
12/30/2005
Field Sample
6010501-01
ng/m3
Hexavalent Chromium
0.0348
-------
Appendix C - 2005 UATMP
Hexavalent Chromium Report
GPCO Hexavalent Chromium Sampling Results
Page 17 of 57
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
1/10/2005
Field Sample
5011202-02
ng/m3
0.0156
1/16/2005
Field Sample
5012007-03
ng/m3
0.0131
1/22/2005
Collocated - Cl
5012510-01
ng/m3
0.0258
1/22/2005
Collocated - C2
5012510-02
ng/m3
0.0216
1/28/2005
Field Sample
5020105-01
ng/m3
0.0130
2/3/2005
Field Sample
5020902-01
ng/m3
ND
2/9/2005
Field Sample
5021607-01
ng/m3
2/15/2005
Field Sample
5021810-01
ng/m3
0.0128
2/21/2005
Collocated - Cl
5022301-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
2/21/2005
Collocated - C2
5022301-02
ng/m3
0.0435
2/27/2005
Field Sample
5030202-01
ng/m3
0.0091
3/5/2005
Field Sample
5030808-01
ng/m3
ND
3/11/2005
Field Sample
5031510-02
ng/m3
0.0368
3/17/2005
Field Sample
5032401-01
ng/m3
0.0563
3/23/2005
Field Sample
5032907-01
ng/m3
ND
3/29/2005
Field Sample
5040103-01
ng/m3
0.0276
4/7/2005
Field Sample
5041301-01
ng/m3
0.0270
4/10/2005
Field Sample
5041301-03
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
4/16/2005
Field Sample
5042002-01
ng/m3
0.0467
4/22/2005
Field Sample
5042612-01
ng/m3
ND
4/28/2005
Field Sample
5050303-01
ng/m3
ND
5/4/2005
Field Sample
5051001-01
ng/m3
0.0283
5/10/2005
Collocated - Cl
5051317-01
ng/m3
0.0411
5/10/2005
Collocated - C2
5051317-02
ng/m3
ND
5/17/2005
Field Sample
5051905-01
ng/m3
0.0085
5/22/2005
Field Sample
5052505-01
ng/m3
0.0202
5/28/2005
Field Sample
5060108-01
ng/m3
Hexavalent Chromium
0.0262
Hexavalent Chromium
0.0017
Hexavalent Chromium
0.0305
-------
Appendix C - 2005 UATMP
Hexavalent Chromium Report
GPCO Hexavalent Chromium Sampling Results
Page 18 of 57
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
6/3/2005
Field Sample
5060804-01
ng/m3
0.0466
6/9/2005
Field Sample
5061706-01
ng/m3
0.0356
6/15/2005
Field Sample
5062204-01
ng/m3
0.0599
6/21/2005
Collocated - Cl
5062304-01
ng/m3
ND
6/21/2005
Collocated - C2
5062304-02
ng/m3
ND
7/12/2005
Field Sample
5071906-06
ng/m3
ND
7/15/2005
Field Sample
5071906-07
ng/m3
ND
7/18/2005
Field Sample
5072007-01
ng/m3
0.0273
7/21/2005
Field Sample
5072603-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
7/24/2005
Field Sample
5072609-01
ng/m3
ND
7/27/2005
Field Sample
5080201-03
ng/m3
0.0204
8/2/2005
Field Sample
5081006-01
ng/m3
ND
8/8/2005
Field Sample
5081109-04
ng/m3
ND
8/14/2005
Field Sample
5081907-01
ng/m3
0.0209
8/20/2005
Field Sample
5082405-01
ng/m3
ND
8/29/2005
Field Sample
5090108-01
ng/m3
0.0401
9/1/2005
Field Sample
5090711-03
ng/m3
0.0384
9/7/2005
Field Sample
5091403-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
9/13/2005
Field Sample
5091605-01
ng/m3
ND
9/19/2005
Field Sample
5092304-01
ng/m3
0.0260
9/25/2005
Field Sample
5092803-01
ng/m3
ND
10/1/2005
Field Sample
5100703-01
ng/m3
0.0293
10/7/2005
Field Sample
5101305-01
ng/m3
0.0952
10/13/2005
Collocated - Cl
5101903-01
ng/m3
0.0401
10/13/2005
Collocated - C2
5101903-02
ng/m3
0.0406
10/19/2005
Field Sample
5102508-01
ng/m3
ND
10/25/2005
Field Sample
5110203-01
ng/m3
Hexavalent Chromium
0.0338
Hexavalent Chromium
ND
Hexavalent Chromium
0.0326
-------
Appendix C - 2005 UATMP
Hexavalent Chromium Report
GPCO Hexavalent Chromium Sampling Results
Page 19 of 57
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
10/31/2005
Field Sample
5110808-01
ng/m3
ND
1 1/6/2005
Field Sample
5111005-01
ng/m3
0.0472
11/12/2005
Field Sample
5111705-01
ng/m3
0.0193
11/18/2005
Field Sample
5112303-01
ng/m3
0.0174
11/24/2005
Collocated - Cl
5112914-07
ng/m3
0.0120
11/24/2005
Collocated - C2
5112914-08
ng/m3
ND
11/30/2005
Field Sample
5120705-04
ng/m3
0.0313
12/6/2005
Field Sample
5121420-01
ng/m3
ND
12/12/2005
Field Sample
5121505-04
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
12/18/2005
Field Sample
5122109-04
ng/m3
ND
12/24/2005
Field Sample
5122902-01
ng/m3
0.0101
12/30/2005
Field Sample
6010437-01
ng/m3
0.0163
Hexavalent Chromium
0.0526
-------
Appendix C - 2005 UATMP
Hexavalent Chromium Report
GPMS Hexavalent Chromium Sampling Results
Page 20 of 57
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
10/7/2005
Field Sample
5101201-01
ng/m3
ND
10/8/2005
Field Sample
5101201-02
ng/m3
ND
10/9/2005
Field Sample
5101201-03
ng/m3
0.0147
10/10/2005
Field Sample
5101201-04
ng/m3
0.0256
10/11/2005
Field Sample
5101301-01
ng/m3
0.0422
10/12/2005
Field Sample
5101401-04
ng/m3
0.0447
10/13/2005
Field Sample
5101703-01
ng/m3
0.0226
10/14/2005
Field Sample
5101911-13
ng/m3
ND
10/15/2005
Field Sample
5101911-11
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
10/16/2005
Field Sample
5101911-14
ng/m3
ND
10/17/2005
Field Sample
5101911-12
ng/m3
0.0511
10/18/2005
Field Sample
5102003-03
ng/m3
0.0211
10/19/2005
Collocated - Cl
5102109-01
ng/m3
0.0137
10/19/2005
Collocated - C2
5102109-02
ng/m3
0.0180
10/20/2005
Field Sample
5102503-04
ng/m3
10/21/2005
Field Sample
5102503-01
ng/m3
0.0523
10/22/2005
Field Sample
5102503-03
ng/m3
ND
10/23/2005
Field Sample
5102503-02
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
10/24/2005
Field Sample
5102602-01
ng/m3
ND
10/25/2005
Field Sample
5102701-01
ng/m3
ND
10/26/2005
Collocated - Cl
5102801-01
ng/m3
0.0483
10/26/2005
Collocated - C2
5102801-02
ng/m3
0.0351
10/27/2005
Field Sample
5110101-08
ng/m3
ND
10/28/2005
Field Sample
5110101-09
ng/m3
ND
10/29/2005
Field Sample
5110101-10
ng/m3
ND
10/30/2005
Field Sample
5110101-11
ng/m3
ND
10/31/2005
Field Sample
5110201-01
ng/m3
Hexavalent Chromium
ND
Hexavalent Chromium
0.0404
Hexavalent Chromium
0.0135
-------
Appendix C - 2005 UATMP
Hexavalent Chromium Report
GPMS Hexavalent Chromium Sampling Results
Page 21 of 57
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
11/1/2005
Field Sample
5110302-03
ng/m3
ND
1 1/2/2005
Collocated - Cl
5110402-06
ng/m3
0.0627
1 1/2/2005
Collocated - C2
5110402-07
ng/m3
0.0279
1 1/3/2005
Field Sample
5110814-01
ng/m3
0.0275
1 1/4/2005
Field Sample
5110814-02
ng/m3
0.0422
1 1/5/2005
Field Sample
5110814-03
ng/m3
0.0301
1 1/6/2005
Field Sample
5110814-04
ng/m3
0.0530
1 1/7/2005
Field Sample
5110903-01
ng/m3
0.0696
1 1/8/2005
Field Sample
5111003-03
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
11/9/2005
Collocated - Cl
5111108-01
ng/m3
0.0219
11/9/2005
Collocated - C2
5111108-02
ng/m3
0.0244
11/10/2005
Field Sample
5111503-01
ng/m3
0.0164
11/11/2005
Field Sample
5111503-02
ng/m3
0.0118
11/12/2005
Field Sample
5111503-03
ng/m3
0.0192
11/13/2005
Field Sample
5111503-04
ng/m3
0.0091
11/14/2005
Field Sample
5111618-01
ng/m3
0.0192
11/15/2005
Field Sample
5111702-03
ng/m3
0.0099
11/16/2005
Collocated - Cl
5111803-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
11/16/2005
Collocated - C2
5111803-02
ng/m3
ND
11/17/2005
Field Sample
5112102-01
ng/m3
0.0117
11/18/2005
Field Sample
5112205-01
ng/m3
ND
11/19/2005
Field Sample
5112205-02
ng/m3
ND
11/20/2005
Field Sample
5112205-03
ng/m3
ND
11/21/2005
Field Sample
5112308-01
ng/m3
0.0163
11/22/2005
Field Sample
5112910-15
ng/m3
0.0029
11/23/2005
Field Sample
5112910-16
ng/m3
ND
11/24/2005
Field Sample
5112910-17
ng/m3
Hexavalent Chromium
0.0200
Hexavalent Chromium
0.0168
Hexavalent Chromium
ND
-------
Appendix C - 2005 UATMP
Hexavalent Chromium Report
GPMS Hexavalent Chromium Sampling Results
Page 22 of 57
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
11/25/2005
Field Sample
5112910-18
ng/m3
ND
11/26/2005
Field Sample
5112910-19
ng/m3
0.0126
11/27/2005
Field Sample
5112910-20
ng/m3
11/28/2005
Field Sample
5113001-01
ng/m3
ND
11/29/2005
Field Sample
5120108-01
ng/m3
0.0165
11/30/2005
Collocated - Cl
5120222-01
ng/m3
0.0316
11/30/2005
Collocated - C2
5120222-02
ng/m3
0.0332
12/1/2005
Field Sample
5120605-01
ng/m3
0.0143
12/2/2005
Field Sample
5120605-02
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
12/3/2005
Field Sample
5120605-03
ng/m3
0.0078
12/4/2005
Field Sample
5120605-04
ng/m3
0.0186
12/5/2005
Field Sample
5120701-04
ng/m3
0.0198
12/6/2005
Field Sample
5120809-01
ng/m3
0.0192
12/7/2005
Collocated - Cl
5120904-01
ng/m3
0.0134
12/7/2005
Collocated - C2
5120904-02
ng/m3
0.0093
12/8/2005
Field Sample
5121304-01
ng/m3
0.0832
12/9/2005
Field Sample
5121304-02
ng/m3
ND
12/10/2005
Field Sample
5121304-03
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
12/11/2005
Field Sample
5121304-04
ng/m3
0.0048
12/12/2005
Field Sample
5121404-01
ng/m3
0.0400
12/13/2005
Field Sample
5121605-02
ng/m3
ND
12/14/2005
Collocated - Cl
5122007-01
ng/m3
ND
12/14/2005
Collocated - C2
5121605-03
ng/m3
ND
12/15/2005
Field Sample
5122007-02
ng/m3
ND
12/16/2005
Field Sample
5122007-03
ng/m3
ND
12/17/2005
Field Sample
5122007-04
ng/m3
ND
12/18/2005
Field Sample
5122007-05
ng/m3
Hexavalent Chromium
0.0120
Hexavalent Chromium
ND
Hexavalent Chromium
ND
-------
Appendix C - 2005 UATMP
Hexavalent Chromium Report
GPMS Hexavalent Chromium Sampling Results
Page 23 of 57
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
12/19/2005
Field Sample
5122102-04
ng/m3
ND
12/20/2005
Field Sample
5122801-01
ng/m3
0.0209
12/21/2005
Collocated - Cl
5122801-02
ng/m3
0.0252
12/21/2005
Collocated - C2
5122801-03
ng/m3
0.0242
12/22/2005
Field Sample
5122809-01
ng/m3
0.0306
12/23/2005
Field Sample
5122809-02
ng/m3
0.0119
12/24/2005
Field Sample
5122809-03
ng/m3
ND
12/25/2005
Field Sample
5122809-04
ng/m3
0.0143
12/26/2005
Field Sample
5122809-05
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
12/27/2005
Field Sample
5123012-03
ng/m3
ND
12/28/2005
Field Sample
5123012-04
ng/m3
0.0192
12/29/2005
Field Sample
6010403-03
ng/m3
0.0194
12/30/2005
Field Sample
6010403-05
ng/m3
0.0293
12/31/2005
Field Sample
6010403-04
ng/m3
0.0225
Hexavalent Chromium
0.0139
-------
Appendix C - 2005 UATMP
Hexavalent Chromium Report
HAKY Hexavalent Chromium Sampling Results
Page 24 of 57
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
1/11/2005
Field Sample
5011402-01
ng/m3
ND
1/17/2005
Field Sample
5012008-01
ng/m3
ND
1/22/2005
Collocated - Cl
5012504-01
ng/m3
ND
1/22/2005
Collocated - C2
5012504-02
ng/m3
ND
1/28/2005
Field Sample
5020202-01
ng/m3
0.0105
2/4/2005
Field Sample
5020903-01
ng/m3
ND
2/9/2005
Field Sample
5021503-01
ng/m3
ND
2/15/2005
Field Sample
5021710-01
ng/m3
ND
2/21/2005
Collocated - Cl
5022307-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
2/21/2005
Collocated - C2
5022307-02
ng/m3
ND
2/27/2005
Field Sample
5030102-01
ng/m3
ND
3/5/2005
Field Sample
5030810-01
ng/m3
ND
3/11/2005
Field Sample
5031509-01
ng/m3
ND
3/17/2005
Field Sample
5032203-01
ng/m3
ND
3/23/2005
Field Sample
5032905-01
ng/m3
ND
3/29/2005
Field Sample
5033106-01
ng/m3
0.0304
4/4/2005
Field Sample
5040604-01
ng/m3
ND
4/10/2005
Field Sample
5041303-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
4/16/2005
Field Sample
5042009-01
ng/m3
ND
4/22/2005
Field Sample
5042610-01
ng/m3
ND
4/28/2005
Field Sample
5050304-01
ng/m3
ND
5/4/2005
Field Sample
5050616-01
ng/m3
ND
5/10/2005
Collocated - Cl
5051712-01
ng/m3
0.0287
5/10/2005
Collocated - C2
5051712-02
ng/m3
ND
5/16/2005
Field Sample
5051805-01
ng/m3
0.0529
5/22/2005
Field Sample
5052405-01
ng/m3
0.0261
5/28/2005
Field Sample
5060102-01
ng/m3
Hexavalent Chromium
ND
Hexavalent Chromium
0.0133
Hexavalent Chromium
0.0227
-------
Appendix C - 2005 UATMP
Hexavalent Chromium Report
HAKY Hexavalent Chromium Sampling Results
Page 25 of 57
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
6/3/2005
Field Sample
5060717-01
ng/m3
0.103
6/9/2005
Field Sample
5061418-01
ng/m3
0.0327
6/15/2005
Field Sample
5062205-01
ng/m3
0.0480
6/21/2005
Collocated - Cl
5062913-02
ng/m3
ND
6/21/2005
Collocated - C2
5062913-03
ng/m3
ND
6/27/2005
Field Sample
5062913-01
ng/m3
ND
7/3/2005
Field Sample
5070610-01
ng/m3
ND
7/9/2005
Field Sample
5071220-01
ng/m3
ND
7/15/2005
Field Sample
5072003-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
7/21/2005
Field Sample
5072611-01
ng/m3
0.0284
8/2/2005
Field Sample
5080506-01
ng/m3
0.0215
8/8/2005
Field Sample
5081204-01
ng/m3
ND
8/14/2005
Field Sample
5081906-01
ng/m3
ND
8/20/2005
Field Sample
5082315-01
ng/m3
0.0407
8/26/2005
Field Sample
5083015-01
ng/m3
0.0243
9/1/2005
Field Sample
5090705-01
ng/m3
0.0523
9/7/2005
Field Sample
5091305-01
ng/m3
ND
9/13/2005
Field Sample
5091506-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
9/19/2005
Field Sample
5092106-01
ng/m3
0.0293
9/25/2005
Field Sample
5092701-01
ng/m3
0.0320
10/1/2005
Field Sample
5100423-01
ng/m3
0.0294
10/7/2005
Field Sample
5101217-01
ng/m3
ND
10/13/2005
Collocated - Cl
5101905-01
ng/m3
0.0520
10/13/2005
Collocated - C2
5101905-02
ng/m3
0.0390
10/19/2005
Field Sample
5102511-01
ng/m3
0.0442
10/25/2005
Field Sample
5102708-01
ng/m3
ND
10/31/2005
Field Sample
5110211-01
ng/m3
Hexavalent Chromium
ND
Hexavalent Chromium
0.0259
Hexavalent Chromium
ND
-------
Appendix C - 2005 UATMP
Hexavalent Chromium Report
HAKY Hexavalent Chromium Sampling Results
Page 26 of 57
Sample Date:
Sample Type:
ID:
Units
11/6/2005
Field Sample
5110810-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
12/24/2005
Field Sample
6010415-01
ng/m3
Hexavalent Chromium
0.0992
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
11/12/2005
Field Sample
5111514-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
12/30/2005
Field Sample
6010415-02
ng/m3
Hexavalent Chromium
0.0111
Hexavalent Chromium
0.0130
Sample Date:
Sample Type:
ID:
Units
11/18/2005
Field Sample
5112207-01
ng/m3
Hexavalent Chromium
ND
Sample Date:
Sample Type:
ID:
Units
11/23/2005
Collocated - Cl
5112922-01
ng/m3
Hexavalent Chromium
ND
Sample Date:
Sample Type:
ID:
Units
11/23/2005
Collocated - C2
5112922-02
ng/m3
Hexavalent Chromium
ND
Sample Date:
Sample Type:
ID:
Units
11/30/2005
Field Sample
5120608-01
ng/m3
Hexavalent Chromium
ND
Sample Date:
Sample Type:
ID:
Units
12/6/2005
Field Sample
5120816-01
ng/m3
Hexavalent Chromium
ND
Sample Date:
Sample Type:
ID:
Units
12/12/2005
Field Sample
5121611-01
ng/m3
Hexavalent Chromium
ND
Sample Date:
Sample Type:
ID:
Units
12/18/2005
Field Sample
5122015-01
ng/m3
Hexavalent Chromium
0.0348
-------
Appendix C - 2005 UATMP
Hexavalent Chromium Report
LAOR Hexavalent Chromium Sampling Results
Page 27 of 57
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
1/10/2005
Field Sample
5011201-02
ng/m3
ND
1/16/2005
Field Sample
5011903-01
ng/m3
ND
1/22/2005
Field Sample
5012508-01
ng/m3
ND
1/28/2005
Field Sample
5020208-01
ng/m3
ND
2/3/2005
Field Sample
5020807-01
ng/m3
ND
2/9/2005
Field Sample
5021606-01
ng/m3
ND
2/15/2005
Field Sample
5021708-01
ng/m3
ND
2/21/2005
Field Sample
5022502-01
ng/m3
ND
2/27/2005
Field Sample
5030104-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
3/5/2005
Field Sample
5030815-01
ng/m3
ND
3/11/2005
Field Sample
5031502-01
ng/m3
ND
3/17/2005
Field Sample
5032211-01
ng/m3
ND
3/23/2005
Field Sample
5033001-01
ng/m3
0.0401
3/29/2005
Field Sample
5033102-01
ng/m3
ND
4/4/2005
Field Sample
5040705-01
ng/m3
4/10/2005
Field Sample
5041304-01
ng/m3
ND
4/16/2005
Field Sample
5042008-01
ng/m3
ND
4/22/2005
Field Sample
5042611-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
4/28/2005
Field Sample
5050309-01
ng/m3
ND
5/4/2005
Field Sample
5051004-01
ng/m3
ND
5/10/2005
Field Sample
5051209-01
ng/m3
0.0322
5/16/2005
Field Sample
5051904-01
ng/m3
0.0054
5/22/2005
Field Sample
5052403-01
ng/m3
0.0072
5/28/2005
Field Sample
5060103-01
ng/m3
0.0167
6/3/2005
Field Sample
5060803-01
ng/m3
ND
6/9/2005
Field Sample
5061417-01
ng/m3
ND
6/15/2005
Field Sample
5062109-01
ng/m3
Hexavalent Chromium
0.0211
Hexavalent Chromium
ND
Hexavalent Chromium
ND
-------
Appendix C - 2005 UATMP
Hexavalent Chromium Report
LAOR Hexavalent Chromium Sampling Results
Page 28 of 57
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
6/21/2005
Field Sample
5062809-01
ng/m3
ND
6/27/2005
Field Sample
5062909-01
ng/m3
ND
7/3/2005
Field Sample
5070712-01
ng/m3
0.256
7/9/2005
Field Sample
5071215-01
ng/m3
ND
7/15/2005
Field Sample
5071908-01
ng/m3
ND
7/21/2005
Field Sample
5072802-01
ng/m3
ND
7/27/2005
Field Sample
5080507-01
ng/m3
0.0142
8/2/2005
Field Sample
5080508-01
ng/m3
ND
8/8/2005
Field Sample
5081008-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
8/14/2005
Field Sample
5081611-01
ng/m3
ND
8/20/2005
Field Sample
5082321-01
ng/m3
8/26/2005
Field Sample
5083108-01
ng/m3
ND
9/1/2005
Field Sample
5090808-01
ng/m3
ND
9/7/2005
Field Sample
5090908-01
ng/m3
0.0747
9/13/2005
Field Sample
5091513-01
ng/m3
ND
9/19/2005
Field Sample
5092311-01
ng/m3
9/25/2005
Field Sample
5092708-01
ng/m3
ND
10/1/2005
Field Sample
5100416-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
10/7/2005
Field Sample
5101105-01
ng/m3
0.0090
10/13/2005
Field Sample
5101907-01
ng/m3
0.0226
10/19/2005
Field Sample
5102507-01
ng/m3
ND
10/25/2005
Field Sample
5102703-01
ng/m3
ND
10/31/2005
Field Sample
5110210-01
ng/m3
ND
11/6/2005
Field Sample
5110811-01
ng/m3
ND
11/12/2005
Field Sample
5111515-01
ng/m3
0.0117
11/18/2005
Field Sample
5112210-01
ng/m3
ND
11/30/2005
Field Sample
5120818-01
ng/m3
Hexavalent Chromium
ND
Hexavalent Chromium
ND
Hexavalent Chromium
0.0138
-------
Appendix C - 2005 UATMP
Hexavalent Chromium Report
LAOR Hexavalent Chromium Sampling Results
Page 29 of 57
Sample Date:
Sample Type:
ID:
Units
12/6/2005
Field Sample
5120819-01
ng/m3
Hexavalent Chromium
0.0115
Sample Date:
Sample Type:
ID:
Units
12/12/2005
Field Sample
5121405-01
ng/m3
Hexavalent Chromium
0.0190
Sample Date:
Sample Type:
ID:
Units
12/18/2005
Field Sample
5122122-01
ng/m3
Hexavalent Chromium
0.0174
Sample Date:
Sample Type:
ID:
Units
12/24/2005
Field Sample
5122816-01
ng/m3
Hexavalent Chromium
0.0054
Sample Date:
Sample Type:
ID:
Units
12/30/2005
Field Sample
6010513-01
ng/m3
Hexavalent Chromium
ND
-------
Appendix C - 2005 UATMP
Hexavalent Chromium Report
MVWI Hexavalent Chromium Sampling Results
Page 30 of 57
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
3/17/2005
Field Sample
5032103-01
ng/m3
ND
3/23/2005
Field Sample
5032507-01
ng/m3
0.0713
3/29/2005
Field Sample
5033107-01
ng/m3
ND
4/4/2005
Field Sample
5040606-01
ng/m3
ND
4/10/2005
Field Sample
5041201-01
ng/m3
0.0080
4/16/2005
Field Sample
5041906-01
ng/m3
ND
4/22/2005
Field Sample
5042602-01
ng/m3
ND
4/28/2005
Field Sample
5050404-01
ng/m3
ND
5/4/2005
Field Sample
5050614-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
5/10/2005
Collocated - Cl
5051214-01
ng/m3
0.0290
5/10/2005
Collocated - C2
5051214-02
ng/m3
0.0406
5/16/2005
Field Sample
5051803-01
ng/m3
0.0198
5/22/2005
Field Sample
5052401-01
ng/m3
ND
5/28/2005
Field Sample
5060302-01
ng/m3
ND
6/3/2005
Field Sample
5060716-01
ng/m3
0.0174
6/9/2005
Field Sample
5061301-01
ng/m3
ND
6/15/2005
Field Sample
5061708-01
ng/m3
0.0282
6/21/2005
Collocated - Cl
5062303-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
6/21/2005
Collocated - C2
5062303-02
ng/m3
ND
6/27/2005
Field Sample
5062910-01
ng/m3
ND
7/3/2005
Field Sample
5070607-01
ng/m3
0.132
7/9/2005
Field Sample
5071214-01
ng/m3
ND
7/15/2005
Field Sample
5071905-01
ng/m3
ND
7/21/2005
Field Sample
5072504-01
ng/m3
0.0245
7/27/2005
Field Sample
5072911-01
ng/m3
ND
8/2/2005
Field Sample
5080409-01
ng/m3
ND
8/8/2005
Field Sample
5081010-01
ng/m3
Hexavalent Chromium
ND
Hexavalent Chromium
ND
Hexavalent Chromium
0.0188
-------
Appendix C - 2005 UATMP
Hexavalent Chromium Report
MVWI Hexavalent Chromium Sampling Results
Page 31 of 57
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
8/14/2005
Field Sample
5081604-01
ng/m3
0.0221
8/20/2005
Field Sample
5082323-01
ng/m3
0.0361
8/26/2005
Field Sample
5083008-01
ng/m3
0.0399
9/1/2005
Field Sample
5090704-01
ng/m3
0.0402
9/7/2005
Field Sample
5090906-01
ng/m3
ND
9/13/2005
Field Sample
5091604-01
ng/m3
ND
9/19/2005
Field Sample
5092102-01
ng/m3
0.0345
9/25/2005
Field Sample
5092707-01
ng/m3
0.0700
10/1/2005
Field Sample
5100419-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
10/7/2005
Field Sample
5101219-01
ng/m3
ND
10/13/2005
Collocated - Cl
5101701-01
ng/m3
0.0393
10/13/2005
Collocated - C2
5101701-02
ng/m3
0.0336
10/19/2005
Field Sample
5102105-01
ng/m3
0.0101
10/25/2005
Field Sample
5102714-01
ng/m3
ND
10/31/2005
Field Sample
5110208-01
ng/m3
ND
11/6/2005
Field Sample
5110804-01
ng/m3
ND
11/12/2005
Field Sample
5111517-01
ng/m3
0.0117
11/18/2005
Field Sample
5112212-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
11/24/2005
Collocated - Cl
5113003-01
ng/m3
ND
11/24/2005
Collocated - C2
5113003-02
ng/m3
ND
11/30/2005
Field Sample
5120239-01
ng/m3
0.0142
12/6/2005
Field Sample
5120812-01
ng/m3
ND
12/12/2005
Field Sample
5121416-01
ng/m3
0.0084
12/18/2005
Field Sample
5122011-01
ng/m3
0.0220
12/24/2005
Field Sample
5122814-01
ng/m3
0.0181
12/30/2005
Field Sample
6010417-01
ng/m3
0.0160
Hexavalent Chromium
Hexavalent Chromium
ND
-------
Appendix C - 2005 UATMP
Hexavalent Chromium Report
NBAL Hexavalent Chromium Sampling Results
Page 32 of 57
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
7/15/2005
Field Sample
5071903-04
ng/m3
0.0407
7/21/2005
Field Sample
5072712-04
ng/m3
0.0723
7/27/2005
Field Sample
5072912-04
ng/m3
0.0997
8/8/2005
Field Sample
5081208-04
ng/m3
0.0793
8/20/2005
Field Sample
5082503-04
ng/m3
0.0155
9/1/2005
Field Sample
5091309-01
ng/m3
ND
9/13/2005
Field Sample
5092219-04
ng/m3
0.0299
9/25/2005
Field Sample
5100408-01
ng/m3
ND
10/7/2005
Field Sample
5101213-03
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
10/19/2005
Field Sample
5102711-01
ng/m3
0.0817
10/31/2005
Field Sample
5110346-01
ng/m3
ND
11/12/2005
Field Sample
5111807-01
ng/m3
0.0512
11/24/2005
Collocated - Cl
5113008-01
ng/m3
ND
11/24/2005
Collocated - C2
5113008-02
ng/m3
ND
12/6/2005
Field Sample
5120908-01
ng/m3
0.0181
12/18/2005
Field Sample
5122105-06
ng/m3
ND
12/30/2005
Field Sample
6010502-01
ng/m3
0.0624
Hexavalent Chromium
0.0163
-------
Appendix C - 2005 UATMP
Hexavalent Chromium Report
NBIL Hexavalent Chromium Sampling Results
Page 33 of 57
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
1/11/2005
Field Sample
5011302-01
ng/m3
0.0331
1/16/2005
Field Sample
5011804-01
ng/m3
1/22/2005
Collocated - Cl
5012511-01
ng/m3
ND
1/22/2005
Collocated - C2
5012511-02
ng/m3
ND
1/28/2005
Field Sample
5020103-01
ng/m3
0.0282
2/6/2005
Field Sample
5020805-01
ng/m3
0.0209
2/9/2005
Field Sample
5021105-01
ng/m3
2/15/2005
Field Sample
5021711-01
ng/m3
ND
2/21/2005
Collocated - Cl
5022305-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
2/21/2005
Collocated - C2
5022305-02
ng/m3
2/27/2005
Field Sample
5030101-01
ng/m3
0.112
3/5/2005
Field Sample
5030811-01
ng/m3
ND
3/11/2005
Field Sample
5031402-01
ng/m3
ND
3/17/2005
Field Sample
5032101-01
ng/m3
ND
3/23/2005
Field Sample
5032502-01
ng/m3
ND
3/29/2005
Field Sample
5033105-01
ng/m3
0.0290
4/4/2005
Field Sample
5040602-01
ng/m3
ND
4/10/2005
Field Sample
5041204-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
4/16/2005
Field Sample
5041901-01
ng/m3
0.0601
4/22/2005
Field Sample
5042501-01
ng/m3
0.0504
4/28/2005
Field Sample
5050201-01
ng/m3
ND
5/4/2005
Field Sample
5050618-01
ng/m3
ND
5/10/2005
Collocated - Cl
5051206-02
ng/m3
0.0552
5/10/2005
Collocated - C2
5051206-03
ng/m3
0.0700
5/16/2005
Field Sample
5051801-02
ng/m3
0.0423
5/22/2005
Field Sample
5052404-01
ng/m3
0.0090
5/28/2005
Field Sample
5060101-01
ng/m3
Hexavalent Chromium
Hexavalent Chromium
0.0227
Hexavalent Chromium
0.0549
-------
Appendix C - 2005 UATMP
Hexavalent Chromium Report
NBIL Hexavalent Chromium Sampling Results
Page 34 of 57
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
6/3/2005
Field Sample
5060601-01
ng/m3
0.0227
6/9/2005
Field Sample
5061303-01
ng/m3
ND
6/15/2005
Field Sample
5061707-01
ng/m3
0.0558
6/21/2005
Collocated - Cl
5062307-01
ng/m3
ND
6/21/2005
Collocated - C2
5062307-02
ng/m3
ND
6/27/2005
Field Sample
5062911-01
ng/m3
0.0507
7/3/2005
Field Sample
5070606-01
ng/m3
0.0829
7/9/2005
Field Sample
5071217-01
ng/m3
ND
7/15/2005
Field Sample
5071803-03
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
7/21/2005
Field Sample
5072503-01
ng/m3
0.0456
7/27/2005
Field Sample
5072913-01
ng/m3
0.0145
8/2/2005
Field Sample
5080412-01
ng/m3
0.0315
8/8/2005
Field Sample
5081011-01
ng/m3
0.0312
8/14/2005
Field Sample
5081614-01
ng/m3
0.0225
8/20/2005
Field Sample
5082302-07
ng/m3
0.0651
8/26/2005
Field Sample
5082901-01
ng/m3
0.0229
9/1/2005
Field Sample
5090608-01
ng/m3
ND
9/7/2005
Field Sample
5090901-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
9/13/2005
Field Sample
5091504-01
ng/m3
ND
9/19/2005
Field Sample
5092104-01
ng/m3
ND
9/25/2005
Field Sample
5092706-01
ng/m3
0.0340
10/1/2005
Field Sample
5100417-01
ng/m3
0.0307
10/7/2005
Field Sample
5101002-01
ng/m3
0.0190
10/13/2005
Collocated - Cl
5101706-01
ng/m3
0.0228
10/13/2005
Collocated - C2
5101706-02
ng/m3
0.0272
10/19/2005
Field Sample
5102106-01
ng/m3
ND
10/25/2005
Field Sample
5102709-01
ng/m3
Hexavalent Chromium
0.0346
Hexavalent Chromium
0.0273
Hexavalent Chromium
ND
-------
Appendix C - 2005 UATMP
Hexavalent Chromium Report
NBIL Hexavalent Chromium Sampling Results
Page 35 of 57
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
10/31/2005
Field Sample
5110207-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
12/18/2005
Field Sample
5122009-01
ng/m3
ND
Hexavalent Chromium
0.0177
Sample Date:
Sample Type:
ID:
Units
11/6/2005
Field Sample
5110807-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
12/24/2005
Field Sample
5122812-01
ng/m3
Hexavalent Chromium
0.0162
Hexavalent Chromium
0.0603
Sample Date:
Sample Type:
ID:
Units
11/12/2005
Field Sample
5111510-01
ng/m3
Hexavalent Chromium
0.0269
Sample Date:
Sample Type:
ID:
Units
11/18/2005
Field Sample
5112103-01
ng/m3
Hexavalent Chromium
0.0055
Sample Date:
Sample Type:
ID:
Units
11/24/2005
Collocated - Cl
5112801-01
ng/m3
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
11/24/2005
Collocated - C2
5112801-02
ng/m3
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
11/30/2005
Field Sample
5120218-01
ng/m3
Hexavalent Chromium
0.0314
Sample Date:
Sample Type:
ID:
Units
12/6/2005
Field Sample
5120807-01
ng/m3
Hexavalent Chromium
0.0182
Sample Date:
Sample Type:
ID:
Units
12/12/2005
Field Sample
5121419-01
ng/m3
Hexavalent Chromium
0.0249
-------
Appendix C - 2005 UATMP
Hexavalent Chromium Report
PRRI Hexavalent Chromium Sampling Results
Page 36 of 57
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
1/16/2005
Field Sample
5020109-01
ng/m3
0.0146
1/22/2005
Collocated - Cl
5020109-03
ng/m3
ND
1/22/2005
Collocated - C2
5020109-04
ng/m3
ND
1/28/2005
Collocated - Cl
5020701-01
ng/m3
ND
1/28/2005
Collocated - C2
5020701-02
ng/m3
ND
2/4/2005
Field Sample
5020905-01
ng/m3
ND
2/9/2005
Field Sample
5021504-01
ng/m3
ND
2/15/2005
Field Sample
5021812-01
ng/m3
ND
2/21/2005
Collocated - Cl
5022504-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
2/21/2005
Collocated - C2
5022504-02
ng/m3
0.0172
2/27/2005
Field Sample
5030204-01
ng/m3
0.0352
3/5/2005
Field Sample
5031002-01
ng/m3
ND
3/11/2005
Field Sample
5031602-01
ng/m3
0.0487
3/17/2005
Field Sample
5032204-01
ng/m3
ND
3/23/2005
Field Sample
5033104-01
ng/m3
ND
3/29/2005
Field Sample
5040504-01
ng/m3
ND
4/4/2005
Field Sample
5040701-01
ng/m3
0.0056
4/10/2005
Field Sample
5041404-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
4/15/2005
Field Sample
5042801-01
ng/m3
ND
4/16/2005
Field Sample
5042005-01
ng/m3
ND
4/28/2005
Field Sample
5050405-01
ng/m3
0.0131
5/4/2005
Field Sample
5051003-01
ng/m3
0.0287
5/10/2005
Collocated - Cl
5051213-01
ng/m3
0.0389
5/10/2005
Collocated - C2
5051213-02
ng/m3
0.0296
5/16/2005
Field Sample
5051901-01
ng/m3
0.0077
5/22/2005
Field Sample
5052503-01
ng/m3
0.0176
5/28/2005
Field Sample
5060202-01
ng/m3
Hexavalent Chromium
0.0229
Hexavalent Chromium
0.0244
Hexavalent Chromium
0.0192
-------
Appendix C - 2005 UATMP
Hexavalent Chromium Report
PRRI Hexavalent Chromium Sampling Results
Page 37 of 57
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
6/3/2005
Field Sample
5061007-01
ng/m3
0.0260
6/9/2005
Field Sample
5061421-01
ng/m3
0.0334
6/15/2005
Field Sample
5062108-01
ng/m3
0.0237
6/21/2005
Collocated - Cl
5062403-01
ng/m3
0.0215
6/21/2005
Collocated - C2
5062403-02
ng/m3
0.0238
6/27/2005
Field Sample
5063005-01
ng/m3
ND
7/3/2005
Field Sample
5070608-01
ng/m3
0.0820
7/9/2005
Field Sample
5071301-01
ng/m3
ND
7/15/2005
Field Sample
5072001-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
7/21/2005
Field Sample
5072714-01
ng/m3
0.0367
7/27/2005
Field Sample
5080415-01
ng/m3
0.0132
8/2/2005
Field Sample
5080416-01
ng/m3
0.119
8/8/2005
Field Sample
5081210-01
ng/m3
ND
8/14/2005
Field Sample
5081808-01
ng/m3
0.0168
8/20/2005
Field Sample
5082404-01
ng/m3
0.0173
8/26/2005
Field Sample
5090107-01
ng/m3
ND
9/1/2005
Field Sample
5090706-01
ng/m3
ND
9/7/2005
Field Sample
5090904-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
9/13/2005
Field Sample
5091503-01
ng/m3
0.0178
9/19/2005
Field Sample
5092303-01
ng/m3
0.0179
9/25/2005
Field Sample
5092904-01
ng/m3
ND
10/1/2005
Field Sample
5100414-01
ng/m3
ND
10/7/2005
Field Sample
5101306-01
ng/m3
0.0474
10/13/2005
Collocated - Cl
5101910-01
ng/m3
0.0266
10/13/2005
Collocated - C2
5101910-02
ng/m3
0.0307
10/19/2005
Field Sample
5102116-01
ng/m3
ND
10/25/2005
Field Sample
5102715-01
ng/m3
Hexavalent Chromium
ND
Hexavalent Chromium
ND
Hexavalent Chromium
ND
-------
Appendix C - 2005 UATMP
Hexavalent Chromium Report
PRRI Hexavalent Chromium Sampling Results
Page 38 of 57
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
10/31/2005
Field Sample
5110413-01
ng/m3
0.0358
1 1/6/2005
Field Sample
5111006-01
ng/m3
0.0131
11/12/2005
Field Sample
5111509-01
ng/m3
0.0184
11/18/2005
Field Sample
5112203-01
ng/m3
ND
11/24/2005
Collocated - Cl
5112924-01
ng/m3
0.0125
11/24/2005
Collocated - C2
5112924-02
ng/m3
0.0027
11/30/2005
Field Sample
5120237-01
ng/m3
0.0260
12/6/2005
Field Sample
5120914-01
ng/m3
ND
12/12/2005
Field Sample
5122012-02
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
12/18/2005
Field Sample
5122121-01
ng/m3
0.0339
12/24/2005
Field Sample
5122903-01
ng/m3
0.0227
12/30/2005
Field Sample
6011007-01
ng/m3
0.0100
Hexavalent Chromium
-------
Appendix C - 2005 UATMP
Hexavalent Chromium Report
PVAL Hexavalent Chromium Sampling Results
Page 39 of 57
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
7/15/2005
Field Sample
5071901-04
ng/m3
ND
7/21/2005
Field Sample
5072715-04
ng/m3
0.0256
7/27/2005
Field Sample
5072917-04
ng/m3
ND
8/8/2005
Field Sample
5081211-04
ng/m3
0.0226
8/20/2005
Field Sample
5082505-04
ng/m3
0.0192
9/1/2005
Field Sample
5091311-01
ng/m3
9/13/2005
Field Sample
5092218-04
ng/m3
9/25/2005
Field Sample
5100410-01
ng/m3
0.0243
10/7/2005
Field Sample
5101214-04
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
10/19/2005
Field Sample
5102705-01
ng/m3
ND
10/31/2005
Field Sample
5110349-01
ng/m3
ND
11/12/2005
Field Sample
5111806-01
ng/m3
0.0102
11/24/2005
Collocated - Cl
5113004-01
ng/m3
ND
11/24/2005
Collocated - C2
5113004-02
ng/m3
ND
12/6/2005
Field Sample
5120911-01
ng/m3
0.0039
12/18/2005
Field Sample
5122106-06
ng/m3
ND
12/30/2005
Field Sample
6010503-01
ng/m3
0.0037
Hexavalent Chromium
ND
-------
Appendix C - 2005 UATMP
Hexavalent Chromium Report
S4MO Hexavalent Chromium Sampling Results
Page 40 of 57
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
1/28/2005
Field Sample
5020403-01
ng/m3
0.0510
2/9/2005
Field Sample
5021108-01
ng/m3
0.0257
2/15/2005
Field Sample
5021803-01
ng/m3
ND
2/21/2005
Collocated - Cl
5022503-01
ng/m3
ND
2/21/2005
Collocated - C2
5022503-02
ng/m3
ND
2/27/2005
Field Sample
5030203-01
ng/m3
0.0394
3/5/2005
Field Sample
5030818-01
ng/m3
ND
3/1 1/2005
Field Sample
5031603-01
ng/m3
0.0234
3/17/2005
Field Sample
5032213-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
3/23/2005
Field Sample
5032908-01
ng/m3
ND
3/29/2005
Field Sample
5040107-01
ng/m3
0.0277
4/4/2005
Field Sample
5040806-01
ng/m3
0.0605
4/10/2005
Field Sample
5041302-01
ng/m3
0.0149
4/22/2005
Field Sample
5042601-01
ng/m3
0.0234
4/28/2005
Field Sample
5050406-01
ng/m3
0.0255
5/4/2005
Field Sample
5051101-01
ng/m3
0.0830
5/10/2005
Collocated - Cl
5051318-01
ng/m3
5/10/2005
Collocated - C2
5051318-02
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
5/16/2005
Field Sample
5051902-01
ng/m3
0.0445
5/22/2005
Field Sample
5052502-01
ng/m3
0.0191
6/3/2005
Field Sample
5060710-01
ng/m3
ND
6/9/2005
Field Sample
5061404-03
ng/m3
ND
6/15/2005
Field Sample
5062101-02
ng/m3
6/21/2005
Collocated - Cl
5062406-01
ng/m3
0.0357
6/21/2005
Collocated - C2
5062406-02
ng/m3
0.0390
6/27/2005
Field Sample
5070116-03
ng/m3
0.0497
7/3/2005
Field Sample
5070803-04
ng/m3
Hexavalent Chromium
0.0218
Hexavalent Chromium
0.0391
Hexavalent Chromium
ND
-------
Appendix C - 2005 UATMP
Hexavalent Chromium Report
S4MO Hexavalent Chromium Sampling Results
Page 41 of 57
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
7/9/2005
Field Sample
5071222-02
ng/m3
ND
7/15/2005
Field Sample
5071912-03
ng/m3
ND
7/21/2005
Field Sample
5072602-01
ng/m3
0.0221
7/27/2005
Field Sample
5072918-03
ng/m3
0.0194
8/8/2005
Field Sample
5081013-04
ng/m3
0.0416
8/1 1/2005
Field Sample
5081602-04
ng/m3
0.0527
8/14/2005
Field Sample
5081705-01
ng/m3
0.0245
8/20/2005
Field Sample
5082301-22
ng/m3
0.0576
8/26/2005
Field Sample
5083007-03
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
9/1/2005
Field Sample
5090709-03
ng/m3
ND
9/7/2005
Field Sample
5090907-01
ng/m3
ND
9/13/2005
Field Sample
5091928-01
ng/m3
0.0725
9/19/2005
Field Sample
5092305-01
ng/m3
0.0438
9/25/2005
Field Sample
5092902-01
ng/m3
0.0595
10/1/2005
Field Sample
5100420-01
ng/m3
0.0328
10/7/2005
Field Sample
5101107-01
ng/m3
0.0320
10/13/2005
Collocated - Cl
5101908-01
ng/m3
0.0561
10/13/2005
Collocated - C2
5101908-02
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
10/19/2005
Field Sample
5102506-01
ng/m3
ND
10/25/2005
Field Sample
5102804-01
ng/m3
0.0494
10/31/2005
Field Sample
5110350-01
ng/m3
0.109
11/6/2005
Field Sample
5110909-01
ng/m3
0.0404
11/12/2005
Field Sample
5111513-01
ng/m3
0.0213
11/18/2005
Field Sample
5112211-01
ng/m3
0.0232
11/24/2005
Collocated - Cl
5112916-05
ng/m3
11/24/2005
Collocated - C2
5112916-06
ng/m3
0.0431
11/30/2005
Field Sample
5120244-02
ng/m3
Hexavalent Chromium
0.0434
Hexavalent Chromium
0.0704
Hexavalent Chromium
0.0308
-------
Appendix C - 2005 UATMP
Hexavalent Chromium Report
S4MO Hexavalent Chromium Sampling Results
Page 42 of 57
Sample Date:
Sample Type:
ID:
Units
12/6/2005
Field Sample
5121306-01
ng/m3
Hexavalent Chromium
0.0871
Sample Date:
Sample Type:
ID:
Units
12/12/2005
Field Sample
5121607-01
ng/m3
Hexavalent Chromium
ND
Sample Date:
Sample Type:
ID:
Units
12/18/2005
Field Sample
5122110-02
ng/m3
Hexavalent Chromium
ND
Sample Date:
Sample Type:
ID:
Units
12/24/2005
Field Sample
5122817-01
ng/m3
Hexavalent Chromium
0.0351
Sample Date:
Sample Type:
ID:
Units
12/30/2005
Field Sample
6010426-01
ng/m3
Hexavalent Chromium
0.0262
-------
Appendix C - 2005 UATMP
Hexavalent Chromium Report
SDGA Hexavalent Chromium Sampling Results
Page 43 of 57
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
2/27/2005
Collocated - Cl
5031001-01
ng/m3
0.0805
2/27/2005
Collocated - C2
5031001-02
ng/m3
0.0286
3/5/2005
Field Sample
5031001-03
ng/m3
ND
3/23/2005
Field Sample
5032909-01
ng/m3
0.0482
3/29/2005
Field Sample
5033101-01
ng/m3
ND
4/4/2005
Field Sample
5040607-01
ng/m3
0.116
4/10/2005
Field Sample
5041401-01
ng/m3
0.0608
4/16/2005
Field Sample
5042001-01
ng/m3
0.0398
4/22/2005
Field Sample
5042701-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
4/28/2005
Field Sample
5050407-01
ng/m3
ND
5/4/2005
Field Sample
5050612-01
ng/m3
0.0445
5/10/2005
Collocated - Cl
5051210-01
ng/m3
0.0657
5/10/2005
Collocated - C2
5051210-02
ng/m3
0.0272
5/16/2005
Field Sample
5051807-01
ng/m3
0.0292
5/22/2005
Field Sample
5052701-01
ng/m3
0.0460
5/28/2005
Field Sample
5060107-01
ng/m3
0.0497
6/3/2005
Field Sample
5060714-01
ng/m3
ND
6/9/2005
Field Sample
5061416-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
6/15/2005
Field Sample
5061703-01
ng/m3
0.0425
6/21/2005
Collocated - Cl
5062302-01
ng/m3
0.0229
6/21/2005
Collocated - C2
5062302-02
ng/m3
ND
6/27/2005
Field Sample
5063012-01
ng/m3
0.0397
7/3/2005
Field Sample
5070702-01
ng/m3
0.0784
7/9/2005
Field Sample
5071401-01
ng/m3
0.0567
7/15/2005
Field Sample
5072006-01
ng/m3
ND
7/21/2005
Field Sample
5072601-01
ng/m3
0.0572
7/27/2005
Field Sample
5072919-01
ng/m3
Hexavalent Chromium
0.0480
Hexavalent Chromium
ND
Hexavalent Chromium
0.0238
-------
Appendix C - 2005 UATMP
Hexavalent Chromium Report
SDGA Hexavalent Chromium Sampling Results
Page 44 of 57
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
8/2/2005
Field Sample
5080414-01
ng/m3
0.0119
8/8/2005
Field Sample
5081014-01
ng/m3
ND
8/14/2005
Field Sample
5081706-01
ng/m3
0.0348
8/20/2005
Field Sample
5082401-01
ng/m3
0.0527
8/26/2005
Field Sample
5090110-01
ng/m3
ND
9/1/2005
Field Sample
5090807-01
ng/m3
0.0544
9/7/2005
Field Sample
5090902-01
ng/m3
ND
9/13/2005
Field Sample
5091505-01
ng/m3
0.0272
9/19/2005
Field Sample
5092306-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
9/25/2005
Field Sample
5100401-01
ng/m3
ND
10/1/2005
Field Sample
5100406-01
ng/m3
ND
10/7/2005
Field Sample
5101210-01
ng/m3
0.0208
10/13/2005
Field Sample
5101924-01
ng/m3
0.0230
10/19/2005
Field Sample
5102118-01
ng/m3
0.0460
10/25/2005
Field Sample
5102706-01
ng/m3
ND
10/31/2005
Field Sample
5110334-01
ng/m3
ND
11/6/2005
Field Sample
5110816-01
ng/m3
0.0389
11/12/2005
Field Sample
5111518-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
11/18/2005
Field Sample
5112217-01
ng/m3
ND
11/24/2005
Field Sample
5112927-01
ng/m3
0.0101
11/30/2005
Field Sample
5120240-01
ng/m3
0.0210
12/6/2005
Field Sample
5120820-01
ng/m3
0.0278
12/12/2005
Field Sample
6010407-01
ng/m3
0.0254
12/18/2005
Field Sample
5122017-01
ng/m3
0.0167
12/24/2005
Field Sample
5122911-01
ng/m3
0.0228
12/30/2005
Field Sample
6010407-03
ng/m3
0.0221
Hexavalent Chromium
Hexavalent Chromium
0.0247
-------
Appendix C - 2005 UATMP
Hexavalent Chromium Report
SEWA Hexavalent Chromium Sampling Results
Page 45 of 57
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
1/10/2005
Field Sample
5011303-02
ng/m3
0.0116
1/16/2005
Field Sample
5012014-01
ng/m3
1/22/2005
Collocated - Cl
5012603-01
ng/m3
0.0928
1/22/2005
Collocated - C2
5012603-02
ng/m3
0.0915
1/28/2005
Field Sample
5020106-01
ng/m3
0.224
2/3/2005
Field Sample
5020806-01
ng/m3
0.110
2/9/2005
Field Sample
5021505-01
ng/m3
0.0371
2/15/2005
Field Sample
5021802-01
ng/m3
ND
2/21/2005
Collocated - Cl
5022306-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
2/21/2005
Collocated - C2
5022306-02
ng/m3
0.0917
2/27/2005
Field Sample
5030407-01
ng/m3
0.0542
3/5/2005
Field Sample
5030912-01
ng/m3
0.0323
3/11/2005
Field Sample
5031508-01
ng/m3
0.0750
3/17/2005
Field Sample
5032212-01
ng/m3
0.0180
3/23/2005
Field Sample
5032906-01
ng/m3
0.0115
3/29/2005
Field Sample
5040105-01
ng/m3
0.0364
4/4/2005
Field Sample
5040805-01
ng/m3
0.0715
4/10/2005
Field Sample
5041206-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
4/16/2005
Field Sample
5042003-01
ng/m3
ND
4/22/2005
Field Sample
5042608-01
ng/m3
0.0421
4/28/2005
Field Sample
5050308-01
ng/m3
0.0164
5/4/2005
Field Sample
5050617-01
ng/m3
0.0883
5/10/2005
Collocated - Cl
5051208-01
ng/m3
0.0593
5/10/2005
Collocated - C2
5051208-02
ng/m3
0.0593
5/16/2005
Field Sample
5051802-01
ng/m3
0.0373
5/22/2005
Field Sample
5052501-01
ng/m3
0.0237
5/28/2005
Field Sample
5060201-01
ng/m3
Hexavalent Chromium
0.100
Hexavalent Chromium
0.0157
Hexavalent Chromium
0.148
-------
Appendix C - 2005 UATMP
Hexavalent Chromium Report
SEWA Hexavalent Chromium Sampling Results
Page 46 of 57
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
6/3/2005
Field Sample
5060802-01
ng/m3
0.0232
6/9/2005
Field Sample
5061508-01
ng/m3
ND
6/15/2005
Field Sample
5061704-01
ng/m3
0.0415
6/21/2005
Collocated - Cl
5062305-01
ng/m3
0.121
6/21/2005
Collocated - C2
5062305-02
ng/m3
0.122
6/27/2005
Field Sample
5062912-01
ng/m3
0.0742
7/3/2005
Field Sample
5070603-01
ng/m3
0.0470
7/9/2005
Field Sample
5071221-01
ng/m3
ND
7/15/2005
Field Sample
5071913-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
7/21/2005
Field Sample
5072610-01
ng/m3
0.0314
7/27/2005
Field Sample
5072920-01
ng/m3
0.0177
8/2/2005
Field Sample
5080509-01
ng/m3
0.0349
8/8/2005
Field Sample
5081114-01
ng/m3
0.0288
8/14/2005
Field Sample
5081811-01
ng/m3
ND
8/20/2005
Field Sample
5082322-01
ng/m3
0.0583
8/26/2005
Field Sample
5083107-01
ng/m3
0.0430
9/1/2005
Field Sample
5090701-01
ng/m3
ND
9/7/2005
Field Sample
5091307-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
9/13/2005
Field Sample
5091603-01
ng/m3
ND
9/19/2005
Field Sample
5092215-01
ng/m3
0.0183
9/25/2005
Field Sample
5092905-01
ng/m3
0.0237
10/1/2005
Field Sample
5100542-01
ng/m3
0.0450
10/7/2005
Field Sample
5101106-01
ng/m3
0.0798
10/13/2005
Collocated - Cl
5102512-04
ng/m3
0.0608
10/13/2005
Collocated - C2
5102512-05
ng/m3
0.0543
10/19/2005
Field Sample
5102512-01
ng/m3
0.0777
10/25/2005
Field Sample
5102710-01
ng/m3
Hexavalent Chromium
0.0248
Hexavalent Chromium
0.0565
Hexavalent Chromium
ND
-------
Appendix C - 2005 UATMP
Hexavalent Chromium Report
SEWA Hexavalent Chromium Sampling Results
Page 47 of 57
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
10/31/2005
Field Sample
5110409-01
ng/m3
0.0690
1 1/6/2005
Collocated - Cl
5110907-01
ng/m3
0.0172
1 1/6/2005
Collocated - C2
5110907-02
ng/m3
0.103
11/12/2005
Field Sample
5111616-01
ng/m3
0.0101
11/18/2005
Field Sample
5112208-01
ng/m3
0.0108
11/24/2005
Collocated - Cl
5113010-01
ng/m3
0.150
11/24/2005
Collocated - C2
5113010-02
ng/m3
0.202
11/30/2005
Field Sample
5120609-01
ng/m3
0.0823
12/6/2005
Field Sample
5120912-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
12/12/2005
Field Sample
5121406-01
ng/m3
0.0828
12/18/2005
Field Sample
5122213-01
ng/m3
0.0131
12/24/2005
Field Sample
5122904-01
ng/m3
0.0339
12/30/2005
Field Sample
6010504-01
ng/m3
0.0172
Hexavalent Chromium
0.0147
-------
Appendix C - 2005 UATMP
Hexavalent Chromium Report
SIAL Hexavalent Chromium Sampling Results
Page 48 of 57
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
7/15/2005
Field Sample
5071902-04
ng/m3
ND
7/21/2005
Field Sample
5072717-04
ng/m3
0.0450
7/27/2005
Field Sample
5072922-04
ng/m3
0.0916
8/8/2005
Field Sample
5081212-04
ng/m3
0.0437
8/20/2005
Field Sample
5082504-04
ng/m3
0.0329
9/1/2005
Field Sample
5091310-01
ng/m3
ND
9/13/2005
Field Sample
5092216-04
ng/m3
0.0473
9/25/2005
Field Sample
5100412-01
ng/m3
0.0286
10/7/2005
Field Sample
5101215-04
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
10/19/2005
Field Sample
5102704-01
ng/m3
ND
10/31/2005
Field Sample
5110347-01
ng/m3
ND
11/12/2005
Field Sample
5111808-01
ng/m3
0.0425
11/24/2005
Collocated - Cl
5113009-01
ng/m3
ND
11/24/2005
Collocated - C2
5113009-02
ng/m3
ND
12/6/2005
Field Sample
5120910-01
ng/m3
0.104
12/18/2005
Field Sample
5122107-06
ng/m3
ND
12/30/2005
Field Sample
6010506-03
ng/m3
0.0343
Hexavalent Chromium
ND
-------
Appendix C - 2005 UATMP
Hexavalent Chromium Report
SYFL Hexavalent Chromium Sampling Results
Page 49 of 57
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
1/16/2005
Field Sample
5012017-02
ng/m3
ND
1/22/2005
Collocated - Cl
5012506-01
ng/m3
ND
1/22/2005
Collocated - C2
5012506-02
ng/m3
ND
1/28/2005
Field Sample
5020107-01
ng/m3
ND
2/3/2005
Field Sample
5020906-01
ng/m3
0.0068
2/9/2005
Field Sample
5021804-02
ng/m3
ND
2/15/2005
Field Sample
5021804-03
ng/m3
ND
2/21/2005
Collocated - Cl
5022506-01
ng/m3
ND
2/21/2005
Collocated - C2
5022506-02
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
2/27/2005
Field Sample
5030305-01
ng/m3
0.0145
3/5/2005
Field Sample
5030816-01
ng/m3
ND
3/11/2005
Field Sample
5031503-01
ng/m3
ND
3/17/2005
Field Sample
5032208-01
ng/m3
0.119
3/23/2005
Field Sample
5032901-01
ng/m3
ND
3/29/2005
Field Sample
5040503-01
ng/m3
ND
4/4/2005
Field Sample
5040704-01
ng/m3
ND
4/10/2005
Field Sample
5041308-01
ng/m3
0.0170
4/16/2005
Field Sample
5041908-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
4/22/2005
Field Sample
5042605-01
ng/m3
0.0424
4/28/2005
Field Sample
5050306-01
ng/m3
ND
5/4/2005
Field Sample
5051009-01
ng/m3
0.0874
5/10/2005
Collocated - Cl
5051714-01
ng/m3
0.0285
5/10/2005
Collocated - C2
5051714-02
ng/m3
0.0372
5/16/2005
Field Sample
5052510-01
ng/m3
0.0205
5/22/2005
Field Sample
5052602-01
ng/m3
ND
5/28/2005
Field Sample
5060109-01
ng/m3
0.0671
6/3/2005
Field Sample
5060701-01
ng/m3
Hexavalent Chromium
ND
Hexavalent Chromium
0.0452
Hexavalent Chromium
0.0820
-------
Appendix C - 2005 UATMP
Hexavalent Chromium Report
SYFL Hexavalent Chromium Sampling Results
Page 50 of 57
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
6/9/2005
Field Sample
5061504-02
ng/m3
0.0734
6/15/2005
Field Sample
5062202-01
ng/m3
0.0540
6/21/2005
Collocated - Cl
5062402-01
ng/m3
ND
6/21/2005
Collocated - C2
5062402-02
ng/m3
ND
6/27/2005
Field Sample
5063006-01
ng/m3
0.0818
7/3/2005
Field Sample
5070709-01
ng/m3
0.134
7/9/2005
Field Sample
5071213-01
ng/m3
0.0372
7/15/2005
Field Sample
5071911-01
ng/m3
0.0334
7/21/2005
Field Sample
5072605-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
7/27/2005
Field Sample
5080208-03
ng/m3
0.0374
8/2/2005
Field Sample
5080502-03
ng/m3
0.0217
8/8/2005
Field Sample
5081118-02
ng/m3
8/14/2005
Field Sample
5081704-01
ng/m3
ND
8/20/2005
Field Sample
5082320-01
ng/m3
0.0278
8/26/2005
Field Sample
5083101-02
ng/m3
9/1/2005
Field Sample
5090806-02
ng/m3
ND
9/7/2005
Field Sample
5091301-01
ng/m3
0.0440
9/13/2005
Field Sample
5091608-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
9/19/2005
Field Sample
5092209-02
ng/m3
ND
9/25/2005
Field Sample
5092804-01
ng/m3
ND
10/1/2005
Field Sample
5100543-01
ng/m3
0.0261
10/7/2005
Field Sample
5101109-01
ng/m3
0.0318
10/13/2005
Collocated - Cl
5101820-01
ng/m3
ND
10/13/2005
Collocated - C2
5101820-02
ng/m3
ND
10/19/2005
Field Sample
5102609-01
ng/m3
ND
10/25/2005
Field Sample
5102811-01
ng/m3
ND
10/31/2005
Field Sample
5110348-01
ng/m3
Hexavalent Chromium
0.0315
Hexavalent Chromium
ND
Hexavalent Chromium
ND
-------
Appendix C - 2005 UATMP
Hexavalent Chromium Report
SYFL Hexavalent Chromium Sampling Results
Page 51 of 57
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
11/6/2005
Field Sample
5110905-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
12/24/2005
Field Sample
6010429-01
ng/m3
0.0069
Hexavalent Chromium
0.0197
Sample Date:
Sample Type:
ID:
Units
11/12/2005
Field Sample
5111709-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
12/30/2005
Field Sample
6010429-02
ng/m3
Hexavalent Chromium
0.0380
Hexavalent Chromium
0.0242
Sample Date:
Sample Type:
ID:
Units
11/18/2005
Field Sample
5112307-01
ng/m3
Hexavalent Chromium
0.0283
Sample Date:
Sample Type:
ID:
Units
11/24/2005
Collocated - Cl
5112909-04
ng/m3
Hexavalent Chromium
0.0140
Sample Date:
Sample Type:
ID:
Units
11/24/2005
Collocated - C2
5112909-05
ng/m3
Hexavalent Chromium
0.0071
Sample Date:
Sample Type:
ID:
Units
11/30/2005
Field Sample
5120709-02
ng/m3
Hexavalent Chromium
0.0196
Sample Date:
Sample Type:
ID:
Units
12/6/2005
Field Sample
5120907-01
ng/m3
Hexavalent Chromium
ND
Sample Date:
Sample Type:
ID:
Units
12/12/2005
Field Sample
5121508-02
ng/m3
Hexavalent Chromium
0.0199
Sample Date:
Sample Type:
ID:
Units
12/18/2005
Field Sample
5122118-03
ng/m3
Hexavalent Chromium
ND
-------
Appendix C - 2005 UATMP
Hexavalent Chromium Report
UNVT Hexavalent Chromium Sampling Results
Page 52 of 57
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
1/10/2005
Field Sample
5011301-01
ng/m3
0.0101
1/16/2005
Field Sample
5012018-01
ng/m3
ND
1/22/2005
Collocated - Cl
5012507-01
ng/m3
ND
1/22/2005
Collocated - C2
5012507-02
ng/m3
ND
1/28/2005
Collocated - Cl
5020204-01
ng/m3
ND
1/28/2005
Collocated - C2
5020204-02
ng/m3
ND
2/3/2005
Field Sample
5020802-01
ng/m3
ND
2/9/2005
Field Sample
5021609-01
ng/m3
ND
2/15/2005
Field Sample
5021808-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
2/21/2005
Collocated - Cl
5022508-01
ng/m3
ND
2/21/2005
Collocated - C2
5022508-02
ng/m3
ND
2/27/2005
Field Sample
5030302-01
ng/m3
ND
3/5/2005
Field Sample
5030813-01
ng/m3
ND
3/11/2005
Field Sample
5031507-01
ng/m3
ND
3/17/2005
Field Sample
5032209-01
ng/m3
ND
3/23/2005
Field Sample
5032903-01
ng/m3
ND
3/29/2005
Field Sample
5040106-01
ng/m3
ND
4/4/2005
Field Sample
5040804-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
4/10/2005
Field Sample
5041405-01
ng/m3
0.0126
4/16/2005
Field Sample
5041902-01
ng/m3
ND
4/22/2005
Field Sample
5042702-01
ng/m3
0.101
4/28/2005
Field Sample
5050402-01
ng/m3
ND
5/4/2005
Collocated - Cl
5051103-01
ng/m3
0.0300
5/4/2005
Collocated - C2
5051103-02
ng/m3
0.0332
5/10/2005
Collocated - Cl
5051315-01
ng/m3
0.0701
5/10/2005
Collocated - C2
5051315-02
ng/m3
0.0795
5/16/2005
Field Sample
5052003-01
ng/m3
Hexavalent Chromium
ND
Hexavalent Chromium
ND
Hexavalent Chromium
ND
-------
Appendix C - 2005 UATMP
Hexavalent Chromium Report
UNVT Hexavalent Chromium Sampling Results
Page 53 of 57
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
5/22/2005
Field Sample
5052507-01
ng/m3
0.0076
5/28/2005
Field Sample
5060113-01
ng/m3
ND
6/3/2005
Field Sample
5060721-01
ng/m3
ND
6/9/2005
Field Sample
5061422-01
ng/m3
ND
6/15/2005
Field Sample
5062104-01
ng/m3
0.0506
6/21/2005
Collocated - Cl
5062404-01
ng/m3
ND
6/21/2005
Collocated - C2
5062404-02
ng/m3
ND
6/27/2005
Field Sample
5063003-01
ng/m3
ND
7/3/2005
Field Sample
5070703-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
7/9/2005
Field Sample
5071210-01
ng/m3
ND
7/15/2005
Field Sample
5072002-01
ng/m3
ND
7/21/2005
Field Sample
5072606-01
ng/m3
0.0321
7/27/2005
Field Sample
5080212-01
ng/m3
0.0181
8/2/2005
Field Sample
5080511-01
ng/m3
ND
8/8/2005
Field Sample
5081120-01
ng/m3
ND
8/14/2005
Field Sample
5081810-01
ng/m3
ND
8/20/2005
Field Sample
5082402-01
ng/m3
ND
8/26/2005
Field Sample
5083011-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
9/1/2005
Field Sample
5090708-01
ng/m3
0.0560
9/7/2005
Field Sample
5091304-01
ng/m3
9/13/2005
Field Sample
5091602-01
ng/m3
ND
9/19/2005
Field Sample
5092703-01
ng/m3
0.0428
9/25/2005
Field Sample
5092906-01
ng/m3
0.0376
10/1/2005
Field Sample
5100421-01
ng/m3
ND
10/7/2005
Field Sample
5101307-01
ng/m3
0.0812
10/13/2005
Collocated - Cl
5101902-01
ng/m3
0.0238
10/13/2005
Collocated - C2
5101902-02
ng/m3
Hexavalent Chromium
ND
Hexavalent Chromium
ND
Hexavalent Chromium
ND
-------
Appendix C - 2005 UATMP
Hexavalent Chromium Report
UNVT Hexavalent Chromium Sampling Results
Page 54 of 57
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
10/19/2005
Field Sample
5102606-01
ng/m3
ND
10/25/2005
Field Sample
5102803-01
ng/m3
10/31/2005
Field Sample
5110410-01
ng/m3
1 1/6/2005
Field Sample
5110930-01
ng/m3
0.0153
11/12/2005
Field Sample
5111506-01
ng/m3
ND
11/18/2005
Field Sample
5112305-01
ng/m3
ND
11/24/2005
Collocated - Cl
5112928-01
ng/m3
ND
11/24/2005
Collocated - C2
5112928-02
ng/m3
ND
11/30/2005
Field Sample
5120611-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
12/6/2005
Field Sample
5121413-01
ng/m3
0.0115
12/12/2005
Field Sample
5121610-01
ng/m3
ND
12/18/2005
Field Sample
5122120-01
ng/m3
ND
12/24/2005
Field Sample
6010409-01
ng/m3
12/30/2005
Field Sample
6010409-02
ng/m3
0.0108
Hexavalent Chromium
0.0051
-------
Appendix C - 2005 UATMP
Hexavalent Chromium Report
WADC Hexavalent Chromium Sampling Results
Page 55 of 57
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
3/17/2005
Field Sample
5032202-01
ng/m3
ND
3/23/2005
Field Sample
5032506-01
ng/m3
0.0245
3/29/2005
Field Sample
5033103-02
ng/m3
0.0817
4/4/2005
Field Sample
5040605-01
ng/m3
ND
4/10/2005
Field Sample
5041203-01
ng/m3
0.0167
4/16/2005
Field Sample
5041904-01
ng/m3
0.0402
4/22/2005
Field Sample
5042609-01
ng/m3
ND
4/28/2005
Field Sample
5050307-01
ng/m3
0.0163
5/4/2005
Field Sample
5050619-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
5/10/2005
Collocated - Cl
5051211-01
ng/m3
0.0347
5/10/2005
Collocated - C2
5051211-02
ng/m3
0.0478
5/16/2005
Field Sample
5051804-01
ng/m3
ND
5/22/2005
Field Sample
5052402-01
ng/m3
0.0144
5/28/2005
Field Sample
5060106-01
ng/m3
0.0262
6/3/2005
Field Sample
5060718-01
ng/m3
ND
6/9/2005
Field Sample
5061419-01
ng/m3
ND
6/15/2005
Field Sample
5061702-01
ng/m3
ND
6/21/2005
Collocated - Cl
5062309-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
6/21/2005
Collocated - C2
5062309-02
ng/m3
ND
6/27/2005
Field Sample
5062908-01
ng/m3
ND
7/3/2005
Field Sample
5070604-01
ng/m3
0.0642
7/9/2005
Field Sample
5071218-01
ng/m3
ND
7/15/2005
Field Sample
5071907-01
ng/m3
0.0642
7/21/2005
Field Sample
5072612-01
ng/m3
0.0322
7/27/2005
Field Sample
5072925-01
ng/m3
0.0379
8/2/2005
Field Sample
5080408-01
ng/m3
0.0210
8/8/2005
Field Sample
5081016-01
ng/m3
Hexavalent Chromium
ND
Hexavalent Chromium
ND
Hexavalent Chromium
0.0606
-------
Appendix C - 2005 UATMP
Hexavalent Chromium Report
WADC Hexavalent Chromium Sampling Results
Page 56 of 57
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
8/14/2005
Field Sample
5081613-01
ng/m3
ND
8/20/2005
Field Sample
5082316-01
ng/m3
2.97
8/26/2005
Field Sample
5083013-01
ng/m3
0.0203
9/1/2005
Field Sample
5090703-01
ng/m3
ND
9/7/2005
Field Sample
5090905-01
ng/m3
ND
9/13/2005
Field Sample
5091502-01
ng/m3
9/19/2005
Field Sample
5092103-02
ng/m3
ND
9/25/2005
Field Sample
5092705-01
ng/m3
ND
10/1/2005
Field Sample
5100407-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
10/7/2005
Field Sample
5101216-01
ng/m3
0.173
10/13/2005
Collocated - Cl
5101815-01
ng/m3
0.0432
10/13/2005
Collocated - C2
5101815-02
ng/m3
0.0422
10/19/2005
Field Sample
5102108-01
ng/m3
ND
10/25/2005
Field Sample
5102712-01
ng/m3
ND
10/31/2005
Field Sample
5110412-01
ng/m3
0.0230
11/6/2005
Field Sample
5110809-01
ng/m3
ND
11/12/2005
Field Sample
5111511-01
ng/m3
0.0222
11/18/2005
Field Sample
5112213-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
11/24/2005
Collocated - Cl
5112925-01
ng/m3
ND
11/24/2005
Collocated - C2
5112925-02
ng/m3
ND
11/30/2005
Field Sample
5120224-01
ng/m3
ND
12/6/2005
Field Sample
5120814-01
ng/m3
0.0226
12/12/2005
Field Sample
5121408-01
ng/m3
0.0137
12/18/2005
Field Sample
5122013-01
ng/m3
ND
12/24/2005
Field Sample
5122906-01
ng/m3
0.0101
12/30/2005
Field Sample
6010427-01
ng/m3
0.0222
Hexavalent Chromium
0.0328
Hexavalent Chromium
ND
-------
Appendix C - 2005 UATMP
Hexavalent Chromium Report
WETX Hexavalent Chromium Sampling Results
Page 57 of 57
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
6/27/2005
Field Sample
5063001-01
ng/m3
7/8/2005
Field Sample
5071418-05
ng/m3
ND
7/9/2005
Field Sample
5071418-04
ng/m3
ND
7/21/2005
Field Sample
5072719-03
ng/m3
0.0348
8/2/2005
Field Sample
5080523-04
ng/m3
0.0530
8/14/2005
Field Sample
5081805-07
ng/m3
0.0282
8/26/2005
Field Sample
5090605-04
ng/m3
9/7/2005
Field Sample
5091402-01
ng/m3
ND
9/19/2005
Field Sample
5092607-01
ng/m3
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
Hexavalent Chromium
Sample Date:
Sample Type:
ID:
Units
10/1/2005
Field Sample
5100702-01
ng/m3
0.0288
10/13/2005
Collocated - Cl
5101917-05
ng/m3
0.0191
10/13/2005
Collocated - C2
5101917-06
ng/m3
0.0266
10/25/2005
Field Sample
5110337-01
ng/m3
0.0216
11/6/2005
Field Sample
5111612-01
ng/m3
0.0455
11/18/2005
Field Sample
5112803-01
ng/m3
11/30/2005
Field Sample
5121203-03
ng/m3
0.0159
12/12/2005
Field Sample
5121901-01
ng/m3
0.0997
12/24/2005
Field Sample
6010425-01
ng/m3
Hexavalent Chromium
0.0480
Hexavalent Chromium
0.0504
-------
Appendix D
2005 Hexavalent Chromium Sampling Statistics
-------
Hexavalent Chromium Sampling Statistics
Monitor
BOMA
BTUT
BURVT
CHSC
DEMI
ETAL
GPCO
GPMS
HAKY
LAOR
MVWI
NBAL
NBIL
PRRI
PVAL
S4MO
SDGA
SEWA
SIAL
SYFL
UNVT
WADC
WETX
Analyte
Hexavalent Chromium
Hexavalent Chromium
Hexavalent Chromium
Hexavalent Chromium
Hexavalent Chromium
Hexavalent Chromium
Hexavalent Chromium
Hexavalent Chromium
Hexavalent Chromium
Hexavalent Chromium
Hexavalent Chromium
Hexavalent Chromium
Hexavalent Chromium
Hexavalent Chromium
Hexavalent Chromium
Hexavalent Chromium
Hexavalent Chromium
Hexavalent Chromium
Hexavalent Chromium
Hexavalent Chromium
Hexavalent Chromium
Hexavalent Chromium
Hexavalent Chromium
#of
Samples
67
57
68
61
58
16
65
93
64
56
52
17
59
65
15
56
52
66
17
63
64
52
15
#of
Detects
52
38
53
23
49
12
43
60
26
17
25
11
39
39
7
41
37
58
9
34
20
27
12
# of Non-
Detects
15
19
15
38
9
4
22
33
38
39
27
6
20
26
8
15
15
8
8
29
44
25
3
%of
Detects
77.61
66.67
77.94
37.70
84.48
75.00
66.15
64.52
40.63
30.36
48.08
64.71
66.10
60.00
46.67
73.21
71.15
87.88
52.94
53.97
31.25
51.92
80.00
Minimum
0.012
0.004
0.003
0.006
0.006
0.015
0.002
0.003
0.011
0.005
0.008
0.016
0.006
0.003
0.004
0.015
0.010
0.010
0.029
0.007
0.005
0.010
0.016
Maximum
0.269
0.079
0.147
0.147
0.147
0.081
0.095
0.083
0.103
0.256
0.132
0.100
0.112
0.119
0.026
0.109
0.116
0.224
0.104
0.134
0.101
2.970
0.100
Arithmetic
Mean
0.071
0.030
0.063
0.037
0.068
0.046
0.030
0.025
0.036
0.034
0.032
0.052
0.037
0.027
0.016
0.042
0.040
0.059
0.052
0.041
0.036
0.147
0.039
Standard
Deviation
0.058
0.016
0.040
0.031
0.032
0.021
0.017
0.016
0.022
0.058
0.026
0.028
0.021
0.020
0.009
0.020
0.021
0.046
0.025
0.030
0.028
0.554
0.022
Coefficient
of Variance
0.823
0.533
0.638
0.850
0.474
0.450
0.562
0.634
0.611
1.701
0.806
0.548
0.585
0.758
0.564
0.488
0.532
0.772
0.483
0.745
0.755
3.763
0.557
Appendix D - 2005 Hexavalent Chromium Report - Sampling Statistics
Page 1 of 1
-------
Appendix E
Additional Monitoring Site Information
-------
Appendix E - Additional Monitoring Site Information
This section presents specific information about the 2005 hexavalent chromium
monitoring sites including climate summaries, topographic maps, and emission source location
maps. This appendix is divided by site and should serve as a companion to the report and
Appendix A.
E.I BOMA
BOMA is located in the Boston-Lawrence-Worcester, Massachusetts metropolitan
statistical area (MSA). Figure E-l is a topographical map showing the monitoring site in its
urban location. Figure E-2 identifies chromium point source emission locations within 10 miles
of this site that reported to the 2002 NEI for point sources. BOMA is located near a few
chromium sources, located mainly to the north of the site. These facilities are involved in
incineration and iron and steel manufacturing, or are utility boilers.
Boston's location on the East Coast ensures that the city experiences a fairly active
weather pattern. Most storm systems track across the Northeast, bringing ample precipitation to
the area. The proximity to the Atlantic Ocean helps moderate cold outbreaks and hot spells,
while at the same time allowing winds to gust higher than they would farther inland. Winds
generally flow from the northwest in the winter and southwest in the summer (Ruffner and Bair,
1987).
E.2 BTUT
BTUT is located in Bountiful, Utah, just north of Salt Lake City. Figure E-3 is a
topographical map showing the monitoring site in its urban location. Figure E-4 identifies
chromium point source emission locations within 10 miles of this site as reported in the 2002
NEI for point sources. There is only one chromium source near BTUT, which is located to the
south of the site and is involved in fabricated metal products.
The Salt Lake City area has a semi-arid continental climate, with large seasonal
variations. The area is dry, located on the west side of the Wasatch Mountains, and the Great
E-l
-------
Salt Lake tends to have a moderating influence on the city's temperature. Moderate winds flow
out of the southeast on average (Ruffner and Bair, 1987).
E.3 BURVT
BURVT is located in downtown Burlington, Vermont. Figure E-5 is a topographical map
showing BURVT in its urban location. Figure E-6 identifies chromium point source emission
locations within 10 miles of BURVT as reported in the 2002 NEI for point sources. Figure E-6
shows that only one chromium source is located within 10 miles of the site. This utility boiler is
located about 1 mile northwest of BURVT.
The city of Burlington resides just to the east of Lake Champlain in northwest Vermont.
Lake Champlain has a moderating affect on the city, keeping the city slightly warmer than it
could be given its New England location. Vermont is affected by most storm systems that track
across the country, producing variable weather. Average annual winds come from the south,
ahead of advancing weather systems. However, these storm systems are moderated somewhat
due to the Adirondacks to the west and Green Mountains to the east (Ruffner and Bair, 1987).
E.4 CHSC
CHSC is located in Chesterfield, South Carolina. The town of Chesterfield is located on
the NC/SC border, north of Florence. Figure E-7 is a topographical map showing CHSC in its
rural location. Figure E-8 identifies chromium point source emission locations within 10 miles
of CHSC as reported in the 2002 NEI for point sources. Figure E-8 shows that no chromium
sources are located within 10 miles of this site.
The Chesterfield area boasts a temperate climate, typical of its southeast location.
Winters tend to be mild and snowfall is rare, while summers can be hot and humid, due in part to
its proximity to the Atlantic. Chesterfield is also in a region known as the Sandhills. The sandy
soils in this region allow for rapid drainage of precipitation, as well as rapid warming of the
surface. As a result, thunderstorms are more common and tend to intensify over the region
(www.nc-climate.ncsu.edu/climate/sandhills.html and
http://wkbwradio.com/site/localitems.htm).
E-2
-------
E.5 DEMI
DEMI is located in Detroit, Michigan. Figure E-9 is a topographical map showing the
monitoring site in its urban location. Figure E-10 identifies chromium point source emission
locations within 10 miles of the site that reported to the 2002 NEI for point sources. Figure E-10
shows that chromium sources are located to the northeast and south of DEMI and include
incinerators, utility boilers, waste treatment and disposal sites, and petroleum and natural gas
production and refining facilities.
The Detroit area is located in the Great Lakes region, a place for active weather, as storm
systems typically track across the region. Hence, winters can be cold and wet, while summers
are generally mild. The urbanization of the area along with Lake St. Clair to the east are two
major influences on the city's weather. The lake tends to keep Detroit warmer in the winter and
cooler in the summer than more inland areas. The urban heat island tends to keep the city
warmer than outlying areas. Winds are often breezy and generally flow from the southwest on
average (Ruffner and Bair, 1987).
E.6 ETAL
ETAL is located in Birmingham, Alabama. Figure E-l lisa topographical map showing
the monitoring site in its urban location. Figure E-12 identifies chromium point source emission
locations within 10 miles of the site that reported to the 2002 NEI for point sources. Figure E-12
shows that three chromium sources are located to the southwest of ETAL. These sources include
an incinerator, a mineral products processor, and a fuel combustion facility. Figure E-12 also
shows the other two Birmingham sites' relative location to one another.
Birmingham, Alabama is about 300 miles inland from the Gulf of Mexico. The Gulf of
Mexico is a major influence in the city's climate. Winters are tempered and wet while summers
are warm and humid. (Ruffner and Bair, 1987).
E.7 GPCO
GPCO is located in Grand Junction, Colorado. Figure E-l3 is a topographical map
showing the monitoring site in its urban location. Figure E-l4 identifies chromium point source
E-3
-------
emission locations within 10 miles of this site as reported in the 2002 NEI for point sources. The
Grand Junction site is located within 10 miles of two chromium sources, both of which are to the
east of the site. One source is located within one mile of GPCO.
Grand Junction is located in a mountain valley on the west side of the Rockies. This
location can help protect the area from dramatic weather changes. The area tends to be rather
dry and winds tend to flow out of the east-southeast on average, due to the valley breeze effect.
Valley breezes occur as the sun heats up the side of a mountain. The warm air rises, creating a
current that will move up the valley walls (Ruffner and Bair, 1987).
E.8 GPMS
GPMS is located in Gulfport, Mississippi. Figure E-15 is a topographical map showing
the monitoring site in its urban location. Figure E-16 identifies chromium point source emission
locations within 10 miles of this site as reported in the 2002 NEI for point sources. There are no
chromium sources located within 10 miles of GPMS.
Gulfport is a coastal city, and GPMS is located about a mile from the Gulf of Mexico.
This proximity to the Gulf of Mexico allows for mild winters and warm, muggy summers.
While keeping humidity high, the Gulf also moderates hot summer temperatures and cold winter
temperatures that are experienced further inland. Southerly winds prevail in the summer time
due to the Bermuda high pressure. Thunderstorms are common, especially in spring and summer
(www.srcc.lsu.edu/southernClimate/atlas/msdescription).
E.9 HAKY
HAKY is located in Hazard, Kentucky. Figure E-17 is a topographical map showing the
monitoring site in its rural location. Figure E-18 identifies chromium point source emission
locations within 10 miles of this site as reported in the 2002 NEI for point sources. There are no
chromium sources located within 10 miles of HAKY.
The town of Hazard is located in southeast Kentucky, just on the outskirts of Daniel
Boone National Forest. The area enjoys all four seasons, although the eastern part of the state
E-4
-------
tends to be a little cooler than the central and western portions. Thanks to a fairly active weather
patter, precipitation is fairly evenly distributed throughout the year
(http://kvclim.wku.edu/climatography.htm).
E.10 LAOR
LAOR is located in La Grande, Oregon. Figure E-19 is a topographical map showing the
monitoring site in its rural location. Figure E-20 identifies chromium point source emission
locations within 10 miles of this site as reported in the 2002 NEI for point sources. There is one
chromium source located within 10 miles of LAOR. A lumber and wood products facility is
located to the west of the monitoring site.
La Grande is located in a mountain valley in northeast Oregon, wedged between the
Wallowa Mountains to the east and Blue Mountains to the west. The city experiences a
somewhat dry continental climate. The mountains serve to block, to some extent, any storm
systems moving across the region that are still in tact after moving across the Cascades
(http://www.wrcc.dri.edu/narratives/OREGON.htm).
E.ll MVWI
MVWI is located in Mayville, Wisconsin. Figure E-21 is a topographical map showing
the monitoring site in its rural location. Figure E-22 identifies chromium point source emission
locations within 10 miles of this site as reported in the 2002 NEI for point sources. There are
three chromium source located within 10 miles of MVWI. A fabricated metal products facility is
located to the south of the monitoring site, and two fuel combustion facilities are located to the
west.
The town of Mayville is located to the northwest of Milwaukee. This area experiences a
highly variable, continental climate as weather systems frequently push across the region.
Wintertime temperature extremes are moderated somewhat by the proximity to Lake Michigan.
Lake effect snows can occur with winds with an easterly component, although they are more
common closer to the coast (Ruffner and Bair, 1987).
E-5
-------
E.12 NBAL
NBAL is located in North Birmingham, Alabama. Figure E-23 is a topographical map
showing the monitoring site in its urban location. Figure E-12 identified chromium point source
emission locations within 10 miles of ETAL that reported to the 2002 NEI for point sources.
Figure E-12 also shows the locations of NBAL and a third Birmingham site, SIAL, relative to
each other. The sites form a diagonal line that runs northeast (SIAL) to southwest (ETAL), with
NBAL in the middle. Figure E-23 actually shows SIAL's location as well, in the upper right
corner. Figure E-12 shows that three chromium sources are located to the southwest of NBAL.
These sources include an incinerator, a mineral products processor, and a fuel combustion
facility.
E.13 NBIL
NBIL is located in Northbrook, Illinois near Chicago. Figure E-24 is a topographical
map showing the monitoring site in its urban location. Figure E-25 identifies chromium point
source emission locations within 10 miles of this site as reported in the 2002 NEI for point
sources. More chromium sources are located within 10 miles of NBIL than most of the
hexavalent chromium monitoring sites. Some of the industries emitting chromium near NBIL
include agricultural services, incinerators, fuel combustion facilities, mineral product processors,
and water transportation services.
Daily weather fluctuations are common for the Chicago area due to its location near the
Great Lakes. The proximity of Chicago to Lake Michigan offers moderating effects from the
continental climate of the region. In the summertime, lake breezes can cool the city when winds
from the south and southwest push temperatures upward. How much and what type of winter
precipitation depends on the origin of the air mass. The largest snowfalls tend to occur when
cold air masses flow southward over Lake Michigan. Wind speeds average around 10 mph, but
can be greater due to the winds channeling between tall buildings downtown (Ruffner and Bair,
1987).
E-6
-------
E.14 PRRI
PRRI is located in Providence, Rhode Island. Figure E-26 is a topographical map
showing the monitoring site in its urban location. Figure E-27 identifies chromium point source
emission locations within 10 miles of this site as reported in the 2002 NEI for point sources.
Several chromium sources are located within 10 miles of PRRI, including four mineral product
processing facilities.
Providence is a coastal city owing to the waters of the Rhode Island Sound flowing
northward from the Atlantic Ocean. The city's proximity to the Sound and the Atlantic temper
cold air outbreaks and breezes off the ocean moderate summertime heat. On average, southerly
and southwesterly winds in the summer become northwesterly in the winter. Weather is fairly
variable in the region as frequent storm systems affect New England (Ruffner and Bair, 1987).
E.15 PVAL
PVAL is located in western Jefferson County, about 15 miles outside of Birmingham,
Alabama. Figure E-28 is a topographical map showing the monitoring site in its rural location.
Figure E-29 identifies chromium point source emission locations within 10 miles of this site as
reported in the 2002 NEI for point sources. One chromium source, a utility boiler, is located
within 10 miles of PVAL.
The climate of western Jefferson County will be very similar to that of Birmingham.
The major difference between the two is related to rural vs. urban climate characteristics. Rural
areas tend to stay a little cooler than their urban counterparts due differences in their surface
properties.
E.16 S4MO
S4MO is located in St. Louis, Missouri. Figure E-30 is a topographical map showing the
monitoring site in its urban location. Figure E-31 identifies chromium point source emission
locations within 10 miles of this site as reported in the 2002 NEI for point sources. There are a
few chromium sources near S4MO, although most of them are across the border in Illinois.
E-7
-------
St. Louis has a climate that is continental in nature, with cold, rather dry winters, warm,
somewhat wetter summers, and significant seasonal variability. It's location in the center of the
country assure a fairly active weather pattern. Wind speeds are generally light and wind flows
from the southeast on average (Ruffner and Bair, 1987).
E.17 SDGA
SDGA is located in Decatur, Georgia, just outside of Atlanta. Figure E-32 is a
topographical map showing the monitoring site in its urban location. Figure E-33 identifies
chromium point source emission locations within 10 miles of this site as reported in the 2002
NEI for point sources. Two chromium sources are located to the southwest of SDGA. One is an
incinerator and the other is involved in chemical and allied products manufacturing.
Atlanta is the largest city in Georgia, and is located at the base of the Blue Ridge
Mountains. The Gulf of Mexico to the south is the major moisture source for weather systems
that move across the region. Both topographical features, in addition to the Atlantic Ocean to the
east, exert moderating influences on the area's climate (Ruffner and Bair, 1987).
E.18 SEWA
SEWA is located in the heart of Seattle, Washington. Figure E-34 is a topographical map
showing the monitoring site in its urban location. Figure E-35 identifies chromium point source
emission locations within 10 miles of this site as reported in the 2002 NEI for point sources.
Two chromium sources are located within 10 miles of SEWA. A fabricated metal products
facility is right near the site, and a mineral product processing facility is located to the east of the
site and the outer edge of the 10 mile radius.
Seattle is located between the Puget Sound and Lake Washington, and is situated
between the Olympic Mountains to the west and the Cascades to the east. The city experiences a
mild climate as the mountains moderate storm systems that move into the Pacific Northwest and
both the mountains and the sound shield the city from the temperature extremes. Although the
city is known for being rainy, the actual precipitation totals tend to be lower compared to many
locations east of the Rocky Mountains (Ruffner and Bair, 1987).
E-8
-------
E.19 SIAL
SIAL is also located in Birmingham, Alabama. Figure E-36 is a topographical map
showing the monitoring site in its urban location. Its location relative to NBAL is evident on
Figure E-36 (NBAL is in the lower left corner). Figure E-12 identified chromium point source
emission locations within 10 miles of SIAL, NBAL, and ETAL that reported to the 2002 NEI for
point sources. Figure E-12 shows that three chromium sources are located to the southwest of
SIAL, although they are on the outer periphery of SIAL's 10-mile radius. These sources include
an incinerator, a mineral products processor, and a fuel combustion facility.
E.20 SYFL
SYFL is located in the heart of Plant City, Florida, outside of Tampa. Figure E-37 is a
topographical map showing the monitoring site in its rural location. Figure E-38 identifies
chromium point source emission locations within 10 miles of this site as reported in the 2002
NEI for point sources. The site has the highest number of chromium sources are located within a
10 mile radius (16). Chromium emissions come from a variety of source types including a
surface coating facility; stone, clay, glass, and concrete producers; an electrical and electronic
equipment facility; a paper and allied products facility; and a non-ferrous metal producer.
Tampa is located on the west coast of Florida and experiences a subtropical climate, with
very mild winters and warm, humid summers. Although land and sea breezes may affect the
area, wind generally blows from an easterly direction due to high pressure offshore. The sea
breeze and proximity to the Gulf help keep daytime temperatures from becoming excessively
hot. Thunderstorms are frequent, especially in the summer (Ruffner and Bair, 1987).
E.21 UNVT
UNVT is located northeast of Burlington in the town of Underhill. Figure E-39 is a
topographical map showing UNVT in its rural location. Figure E-6 identified chromium point
source emission locations within 10 miles of BURVT, as reported in the 2002 NEI for point
sources. UNVT and its location relative to BURVT are also shown in Figure E-6. Figure E-6
shows that there are no point sources located within 10 miles of UNVT.
E-9
-------
The town of Underhill is located to the northeast of Burlington. Areas further inland do
not benefit from the moderating effects of Lake Champlain like the city of Burlington does. In
addition, the rural characteristics of the area allow for somewhat cooler temperatures due to the
lack of the urban heat island.
E.22 WADC
WADC is located in Washington, D.C. Figure E-40 is a topographical map showing the
site in its urban location. Figure E-41 identifies chromium point source emission locations
within 10 miles of WADC, as reported in the 2002 NEI for point sources. Figure E-7 shows two
point sources located within 10 miles of WADC. Both are located to the south-southwest of the
site and are incinerators or boilers.
Located on the Potomac River that divides Virginia and Maryland, the capital enjoys all
four seasons, although its weather is somewhat variable. Summers are warm and often humid, as
southerly winds prevail, which can be accentuated by the urban heat island effect. Winters are
typical of the Mid-Atlantic region, where cool, blustery air masses are common followed by a
fairly quick return to mild temperatures (Ruffner and Bair, 1987;
http://en.wikipedia.org/wikiAVashington, D.C.).
E.23 WETX
WETX is located in Austin, Texas. Figure E-42 is a topographical map showing the site
in its urban location. Figure E-43 identifies chromium point source emission locations within 10
miles of WETX, as reported in the 2002 NEI for point sources. Figure E-7 shows no chromium
point sources located within 10 miles of the site.
The city of Austin experiences a modified subtropical climate, that is, mild winters with
only a handful of below freezing temperatures each year, and hot muggy summers, due in part to
the flow from the Gulf of Mexico. Northerly winds are prevalent in the winter and southeasterly
winds are predominant in the summer. Precipitation is fairly evenly distributed throughout the
year, through most frequently in the form of thunderstorms in the spring and summer (Ruffner
and Bair, 1987).
E-10
-------
Figure E-l. Boston, Massachusetts Monitoring Site (BOMA)
E-ll
-------
Figure E-2. Facilities Located within 10 Miles of BOMA
' • .•.
Note: Due to facility density and collocation, the total facilities
displayed may not represent all facilities within the area of interest.
Legend
T*T BOMA UATMP site
_] County boundary
' • 10 mile radius
Source Category Group (No. of Facilities)
i Incineration Industrial Facility (1)
> Integrated Iron a Steel Manufacturing Facility (1)
8 Utility Boilers (2)
E-12
-------
Figure E-3. Bountiful, Utah Monitoring Site (BTUT)
E-13
-------
Figure E-4. Facilities Located within 10 Miles of BTUT
Sal! lake Count,
Davis County
Morgan
County
Mole: Due to facility density and collocation. (he Sc^ai facilities
displayed may no! represent all facilities wilhsn (he area of interest
Legend
•& BTUT UATM P site
County boundary
10 mile radius
Source Category Group (No. of Facilities)
D Fabricated Metal Products Facility (1}
E-14
-------
Figure E-5. Burlington, Vermont Monitoring Site (BURVT)
N
E-15
-------
Figure E-6. Facilities Located within 10 Miles of the Burlington Monitoring Sites (BURVT
andUNVT)
72~WO"W 72"5M"W
Note: Due to facility density and collocation, the total facilities
displayed may nol represent all facilities within the area of interest.
jend
•£• BURVT UATMP site
•jir' UNVT UATMP site
~^\ County boundary
O 10 mile radius
Source Category Group (No. of Facilities)
8 Utility Boilers (1)
E-16
-------
Figure E-7. Chesterfield, South Carolina Monitoring Site (CHSC)
I un^g&f.- •;";'.".'• 5 A
e ^Mff/M
jjjjij
E-17
-------
Figure E-8. Facilities Located within 10 Miles of CHSC
County
County
Mote: Due to facility density and collocation, the Sc^ai facilities
displayed may no! represent all facilities wiit^n (he ai'ea of interest
Legend
•fa CHSC UATMP site
10 mile radius
' County boundary
* There were no facilities in the 2002 NEI within 1 0 mites of CHSC that emitted chromium,
E-18
-------
Figure E-9. Detroit, Michigan Monitoring Site (DEMI)
$&\ffi^Jlf*»t ' ^V^/> ** ' ••*/'* \' ***^
0 ) ' *. . .' -• xv - -, *^.£ '• - .v-^, r. ^^sa? "•
E-19
-------
Figure E-10. Facilities Located within 10 Miles of DEMI
Maconib
County
Oakland
County
Wayne
Counly
Mole: Due to facility density 3nd collocation, the !c£ai facilities
displayed may no! represent all facilities, within the aiea of interest
Legend
t*f DEMI UATMP site
: County boundary
10 mile radius
Source Category Group (No. of Facilities)
i incineration Industrial Facility (3)
P Miscellaneous Processes Industrial Facility (1)
P Petroleum/Nat. Gas Prod. & Refining Industrial Facility (1)
a Utility Boilers (2)
' Waste Treatment & Disposal industrial Facility (1)
E-20
-------
Figure E-ll. East Thomas Monitoring Site in Birmingham, Alabama (ETAL)
E-21
-------
Figure E-12. Facilities Located within 10 Miles of the Birmingham Monitoring Sites
(ETAL, NBAL, and SIAL)
Jefferson
County1
Shelby
County
Mote: Due Jo facil^y density anc! collocation, the teSai fadlfties
displayed may no! represent all facilities v«iJhm the area of interest.
Legend
•& ETAL UATMP site
•fc NBAL UATMP Site
•fr SIAL UATMP site
I County boundary
10 mile radius
Source Category Group (No. of Facilities)
F Fuel Combustion Industrial Facility (1)
I Incineration Industrial Facility (1)
B Mineral Products Processing Industrial Facility (1)
E-22
-------
Figure E-13. Grand Junction, Colorado Monitoring Site (GPCO)
.'.(•..:'•••• :'".'.' : II' j "• •
,ir^,:.;;->V 4~Wf L i
.'-j'^fw-:-;---' --'... -.-f . !*••.
te?i«il^iMJ4s
•*| i p3
.•uA-"-!^---K!HHl---i'
MlUJ
„, •, a ;, ,
.,.- ,•• r 4^ tHI
•
. . - -- -
. •fa.a-kv.-yVTm-i'*- • i setr-
E-23
-------
Figure E-14. Facilities Located within 10 Miles of GPCO
[We Du*" tn fanltt, demt, and "ctlofihon Jhe trtat fa
Legend
T^T GPCO UATMP site
| County boundary
10 mile radius
Source Category Group {No. of Facilities)
P Miscellaneous Processes Industrial Facility (2)
E-24
-------
Figure E-15. Gulfport, Mississippi Monitoring Site (GPMS)
E-25
-------
Figure E-16. Facilities Located within 10 Miles of GPMS
.•-••••• , • ..• .••
Mole: Due to facility density and collocation, the total facilities
displayed may not represent all facilities within the area of interest.
Legend
••&• GPMS UATMP site
10 mile radius
^] County boundary
' There were no facilities in the 2002 NEI within 10 miles of GPMS that emitted chromium.
E-26
-------
Figure E-17. Hazard, Kentucky Monitoring Site (HAKY)
' "•^••r\''i .••''; >''"" S\'•'•'• •''/' '£jf '• • ' - :- ' ' ''' :<"'::; " --- ' r*'A
IlK^
VXiw
^-•—^•sL't' s
E-27
-------
Figure E-18. Facilities Located within 10 Miles of HAKY
Bteathitl
County
Knott
County
Leslie
Counfy
Perry
County
f We Due tn fanltt, derrrt, and "ctlofihon th^ trtat facilities
di?jjlajne J m,s> no! rrf (wsent .ill faalrtte* siit.m the- aievi of snteiest
Legend
TV HAKYUATMPsite
^ 10 mile radius
\ County boundary
' There were no facilities in the 2002 NEI within 10 miles of HAKY that emitted chromium.
E-28
-------
Figure E-19. La Grande, Oregon Monitoring Site (LAOR)
jA 5 'i/»
E-29
-------
Figure E-20. Facilities Located within 10 Miles of LAOR
Union
County
[We E>u*" tn fadlttj, density and "diofUton $19 lotat facilities
di?jjlajne J m,a> no! ref r^^Rt .ill faalitie.. .silt^n (he a^ea of interest
Legend
if LAOR UATMP site
10 mile radius
County boundary
Source Category Group (No. of Facilities)
& Lumber & Wood Products Facility (1)
E-30
-------
Figure E-21. Mayville, Wisconsin Monitoring Site (MVWI)
E-31
-------
Figure E-22. Facilities Located within 10 Miles of MVWI
Dodge
County
Fond du Lac
County
Washington
County
EWe Due to facility density and -cl!0!"ihon tht* !ftai facilities
difjjla^is^ miay no! represent all fa? Irtte* .sfUan the- asea of interest
Legend
T*?- MVWI UATMP site
', Count>' boundary
" 10 mite radius
Source Category Group (No. of Facilities)
D Fabricated Metal Products Facility (1}
F Fuel Combustion Industrial Facility (2)
E-32
-------
Figure E-23. North Birmingham, Alabama Monitoring Site (NBAL)
E-33
-------
Figure E-24. Northbrook, Illinois Monitoring Site (NBIL)
E-34
-------
Figure E-25. Facilities Located within 10 Miles of NBIL
Mote: Due to facility density and collocation, the total facilities
displayed may not represent all facilities within the area of interest.
Legend
•& NBIL UATMP site
~\ County boundary
10 mile radius
Source Category Group (No. of Facilities)
A Agricultural Services Facility (2)
F Fuel Combustion Industrial Facility (1)
i Incineration Industrial Facility (1)
Mineral Products Processing Industrial Facility (2)
Miscellaneous Processes Industrial Facility (2)
Personal Services (1)
Stone. Clay. Glass. & Concrete Products (1)
Water Transportation Facility (1)
6
p
o
U
-
E-35
-------
Figure E-26. Providence, Rhode Island Monitoring Site (PRRI)
S i
E-36
-------
Figure E-27. Facilities Located within 10 Miles of PRRI
Mote: Due to facility density and collocation, the total facilities
displayed may not represent all facilities within the area of interest.
Legend
•& PRRI UATMP site
_ County boundary
10 mile radius
Source Category Group (No. of Facilities)
J Industrial Machinery & Equipment Facility (1)
B Mineral Products Processing Industrial Facility (4)
P Miscellaneous Processes Industrial Facility (1)
Miscellaneous Repair Services (1)
\ Non-ferrous Metals Processing Industrial Facility (1)
4 Production of Organic Chemicals Industrial Facility (1)
E-37
-------
Figure E-28. Providence, Alabama Monitoring Site (PVAL)
E-38
-------
Figure E-29. Facilities Located within 10 Miles of PVAL
Tuscaioosa
County
Count,
Jefferson
C&irtty
Mole: Due to facility density and cotlooiton, the Sc^ai facilities
displayed msay no! represent all facilities wilhsn (he a^ea of interest
Legend
•jir PVALUATMPsite
10 mile radius
. ', County boundary
Source Category Group (No. of Facilities)
8 Utility Boilers (1)
E-39
-------
Figure E-30. St. Louis, Missouri Monitoring Site (S4MO)
E-40
-------
Figure E-31. Facilities Located within 10 Miles of S4MO
a Louis
County
Madison
County
St. Glair
Camty
Mole: Due to facility density and collocation, the !c*ai facilitie
displayed may no! represent all facilities within (he aiea of i
Legend
•& S4MO UATMP site
| | County boundary
10 mile radius
Source Category Group (No. of Facilities)
f Fuel Combustion Industrial Facility (2)
P Miscellaneous Processes Industrial Facility (4)
u Stone, Clay: Glass. & Concrete Products (1}
E-41
-------
Figure E-32. Decatur, Georgia Monitoring Site (SDGA)
+,
E-42
-------
Figure E-33. Facilities Located within 10 Miles of SDGA
Dskalb
County
Due tn fanltt, dwit, anff *ctl fihon the iciai facilities
la^ie.1 m,s> no! rrf (wsent .ill fa? Irtte* sftf.m (he aiea of inteiest
Legend
-^T SDGA UATMP site
County boundary
10 mile radius
Source Category Group (No. of Facilities)
c Chemicals & Allied Products Facility (1)
i Incineration Industrial Facility (1)
E-43
-------
Figure E-34. Seattle, Washington Monitoring Site (SEWA)
E-44
-------
Figure E-35. Facilities Located within 10 Miles of SEW A
Note: Due to facility density and collocation, the total facilities
displayed may not represent all facilities within the area of interest.
i& SEWA UATMP site
_J County boundary
• 10 mile radius
Source Category Group (No. of Facilities)
D Fabricated Metal Products Facility (1)
B Mineral Products Processing Industrial Facility (1)
E-45
-------
Figure E-36. Sloth Industries Monitoring Site in Birmingham, Alabama (SIAL)
E-46
-------
Figure E-37. Sydney Monitoring Site in Plant City, Florida (SYFL)
• ...' i v
S&,! .. . V
f!Hn**. - •' rr
E-47
-------
Figure E-38. Facilities Located within 10 Miles of SYFL
UB
Hillsbocoufh
County
•if
Poll
C oun!?
Moie: Due to facility density and collocation, the !e$ai facilities
displayed may not represent all facilities within the area of interest
•fr SYFL UATMP site
| Count/ boundary
10 mile radius
Source Category Group (No. of Facilities)
z Electrical & Electronic Equipment Facility (1)
F Fuel Combustion Industrial Facility (4)
i Incineration industrial Facility (1)
B Mineral Products Processing industrial Facility (3)
\ Non-ferrous Metals Processing Industrial Facility (1)
@ Papers Allied Products (1)
Y Rubber & Miscellaneous Plastic Products Facility (1)
u stone, Clays Glass, S Concrete Products (2)
s Surface Coating Processes Industrial Facility (1)
Waste Treatment & Disposal Industrial Facility (1)
E-48
-------
Figure E-39. Underbill, Vermont Monitoring Site (UNVT)
E-49
-------
Figure E-40. Washington, D.C. Monitoring Site (WADC)
E-50
-------
Figure E-41. Facilities Located within 10 Miles of WADC
County
Fads
riuirth
Count,
Montgomery
County
District of Columbia
Anne Arundel
County
Rinse
George's
County
None: Due to facility density and collocation, the total faoltties
displayed may no! represent all facilities wrthsn the asea of interesl
Legend
•jir WADC UATMP Site
County boundary
10 mile radius
Source Category Group (No. of Facilities)
i Incineration Industrial Facility (1)
s Utility Boilers (1)
E-51
-------
Figure E-42. Austin Texas Monitoring Site (WETX)
*$f~,:' :: «KB *•* ••'Hjgly
,3F^.M^ • ^ .^''••./^B?
s --,
™" y, ..' '*/ •-'' *-*'
E-52
-------
Figure E-43. Facilities Located within 10 Miles of WETX
Hays
County
o is 3
Williamson
County
Travis
County
Ba strop
County :
• Caldwdl
County
Moie: Due to facility density and cotloeaMon, the total facilities
displayed may no! represent all facilities within the asea of interest
Legend
T!T- WETX UATMP site
| | County boundary
10 mile radius
" There were no facilities in the 2002 NEI within 10 miles of WETX that emitted chromium.
E-53
-------
Appendix F
Meteorological and Spatial Analysis Products
-------
Appendix F - Meteorological and Spatial Analysis Products
This section presents the wind roses, back trajectories, and pollution roses used to conduct
meteorological and spatial analyses on the 2005 hexavalent chromium data set. This appendix
should serve as a companion to the report.
F-l
-------
Figure F-l. Wind Rose of Sample Days for the BOMA
Monitoring Site
Figure F-2. Wind Rose of Sample Days for the BTUT
Monitoring Site
'WEST
to
•WEST ;
SOUTH ,-
WIND SPEED
(Knots)
O >=22
• 17 - 21
• -11 - 17
• 7- 1-1
O 4-7
• 2- 4
Calms: 9.33%
-------
Figure F-3. Wind Rose of Sample Days for the BURVT
Monitoring Site
NORTH"
25%
' X 20%
1 0%
'WEST!
•SOUTH .-'
EAST
WIND SPEED
(Knots)
CH *22
^| 17 - 21
^| 11 • 17
^| 7- 11
CH 1-7
^| 2- 4
Calms: 22.91%
Figure F-4. Wind Rose of Sample Days for the CHSC
Monitoring Site
NORTH"---.
15%
| 2- A
Calms: 19.95%
-------
Figure F-5. Wind Rose of Sample Days for the DEMI
Monitoring Site
UTH ,-•
WIND SPEED
(Knots)
| | >=22
^| 17 - 21
^| -11 - 17
^| 7- 1-1
H 2- 4
Calms: 8.26%
Figure F-6. Wind Rose of Sample Days for the ETAL
Monitoring Site
'NORTH"-'-.
15%
•WEST I
SOUTH --
WIND SPEED
(Knots)
O :=22
• 17 - 21
• 11 - 17
• 7- 11
2- 4
Calms: 33.41%
-------
Figure F-7. Wind Rose of Sample Days for the GPCO
Monitoring Site
SOUTH ,-•
WIND SPEED
(Knots)
| | >=£2
^| 17 - 21
^| -11 - 17
^| 7- 1-1
H 2- 4
Calms: 14.37%
Figure F-8. Wind Rose of Sample Days for the GPMS
Monitoring Site
•WEST I
16%i
-""\ 12^
8%,
; EAST
SOUTH ,-•
WIND SPEED
(Knots)
O >=22
• 17 - 21
• 11 - 17
• 7- 11
2- 4
Calms: 23.76%
-------
Figure F-9. Wind Rose of Sample Days for the HAKY
Monitoring Site
NORTH •-.
15%
12%
^%^
-
SOUTH ,-•
WIND SPEED
(Knots)
| | >=£2
^| 17 - 21
^| 11 - 17
^| 7- 11
H 2- 4
Calms: 42.86%
Figure F-10. Wind Rose of Sample Days for the LAOR
Monitoring Site
'SOUTH ,-*
WIND SPEED
(Knots)
O >=22
• 17 - 21
• 11 - 17
• 7- 11
2- 4
Calms: 22.13%
-------
Figure F-ll. Wind Rose of Sample Days for the MVWI
Monitoring Site
SOUTH ,-•
WIND SPEED
(Knots)
| | >=£2
^| 17 - 21
^| -11 - 17
^| 7- 1-1
H 2- 4
Calms: 32.50%
Figure F-12. Wind Rose of Sample Days for the NBAL
Monitoring Site
'NORTH"-'-.
•WEST I
SOUTH .-
WIND SPEED
(Knots)
O >=22
• -17 - 21
• 11 - 17
• 7- 11
2- 4
Calms: 32.77%
-------
Figure F-13. Wind Rose of Sample Days for the NBIL
Monitoring Site
Figure F-14. Wind Rose of Sample Days for the PRRI
Monitoring Site
WEST
oo
•SOUTH .-'
WIND SPEED
(Knots)
17 - 21
11 - 17
7- 11
CH
2- 4
Calms: 6.00%
'SOUTH --
2- 4
Calms: 15.84%
-------
Figure F-15. Wind Rose of Sample Days for the PVAL
Monitoring Site
Figure F-16. Wind Rose of Sample Days for the S4MO
Monitoring Site
WEST
VO
NORTH"-'*.
'SOUTH ,-•
WIND SPEED
(Knots)
O :=22
• 17 - 21
• -11 - 17
• 7- 1-1
15%
SOUTH --'
WIND SPEED
(Knots)
O >=22
• 17 - 21
• 11 - 17
• 7- 11
2- 4
Calms: 38.63%
2- 4
Calms: 21.66%
-------
Figure F-17. Wind Rose of Sample Days for the SDGA
Monitoring Site
SOUTH ,-•
WIND SPEED
(Knots)
| | >=£2
^| 17 - 21
^| -11 - 17
^| 7- 1-1
H 2- 4
Calms: 10.42%
Figure F-18. Wind Rose of Sample Days for the SEWA
Monitoring Site
'SOUTH ,-*
WIND SPEED
(Knots)
O :=22
• 17 - 21
• 11 - 17
• 7- 11
2- 4
Calms: 26.32%
-------
Figure F-19. Wind Rose of Sample Days for the SIAL
Monitoring Site
•NORTH ••_
WEST
SOUTH --
WIND SPEED
(Knots)
| | >=£2
^| 17 - 21
^| -11 - 17
^| 7- 1-1
H 2- 4
Calms: 33.42%
Figure F-20. Wind Rose of Sample Days for the SYFL
Monitoring Site
'NORTH"-'-.
•WEST I
SOUTH .-
WIND SPEED
(Knots)
O >=22
• -17 - 21
• 11 - 17
• 7- 11
2- 4
Calms: 10.84%
-------
Figure F-21. Wind Rose of Sample Days for the UNVT
Monitoring Site
Figure F-22. Wind Rose of Sample Days for the WADC
Monitoring Site
•NORTH ••_
WEST
15%
12%
9 %
6%,
3%
; EAST
to
SOUTH ,-•
WIND SPEED
(Knots)
| | >=£2
^| 17 - 21
^| 11 - 17
^| 7- 11
H 2- 4
Calms: 52.88%
'NORTH"-'-.
•WEST I
15%
9%
'SOUTH ,-*
; EAST
WIND SPEED
(Knots)
O :=22
• 17 - 21
• 11 - 17
• 7- 11
O 1-7
H 2- 4
Calms: S.55%
-------
Figure F-23. Wind Rose of Sample Days for the WETX
Monitoring Site
•WEST I
NORTH'---.
16%i
"-s^ 12%
8%,
'SOUTH --'
; EAST
WIND SPEED
(Knots)
O :=22
• 17 - 21
• 11 - 17
• 7- 11
2- 4
Calms: 33.65%
-------
Figure F-24. Composite Back Trajectory Map for BOMA
-------
Figure F-25. Composite Back Trajectory Map for BTUT
100 ' I
Miles
-------
Figure F-26. Composite Back Trajectory Map for BURVT
-------
Figure F-27. Composite Back Trajectory Map for CHSC
-------
Figure F-28. Composite Back Trajectory Map for DEMI
oo
L /^•r/jv*\/fi
• • \7 •/*/'•/£.•//
V' './" AW A
-------
Figure F-29. Composite Back Trajectory Map for ETAL
VO
-------
Figure F-30. Composite Back Trajectory Map for GPCO
to
o
-------
Figure F-31. Composite Back Trajectory Map for GPMS
-------
Figure F-32. Composite Back Trajectory Map for HAKY
to
• / • f
•£••» ;A>
.
-;>v! v :
L-^-X « • '»• '
* . • •
* •* ' I/
0 25 50
100
• Miles
-------
Figure F-33. Composite Back Trajectory Map for LAOR
-------
Figure F-34. Composite Back Trajectory Map for MVWI
-------
Figure F-35. Composite Back Trajectory Map for NBAL
-------
Figure F-36. Composite Back Trajectory Map for NBIL
-------
Figure F-37. Composite Back Trajectory Map for PRRI
-M •
-------
Figure F-38. Composite Back Trajectory Map for PVAL
oo
-------
Figure F-39. Composite Back Trajectory Map for S4MO
to
VO
-------
Figure F-40. Composite Back Trajectory Map for SDGA
-------
Figure F-41. Composite Back Trajectory Map for SEWA
Mites
-------
Figure F-42. Composite Back Trajectory Map for SIAL
to
-------
Figure F-43. Composite Back Trajectory Map for SYFL
-------
Figure F-44. Composite Back Trajectory Map for UNVT
-------
Figure F-45. Composite Back Trajectory Map for WADC
-------
Figure F-46. Composite Back Trajectory Map for WETX
-------
Figure F-47. Hexavalent Chromium Pollution Rose for BOMA
U.tU |
0.35
0.30
0.25
0.20
"C" 0.15
£ 0.10
C
•S 0.05
£7 n nn
Q} U.UU
O
2 0.05
ro 0.10
3
0 0.15
0.20
0.25
0.30
0.35
0.40
O/
NW N
— Screening Value 0.083 ng/m3
-
-
-
-
» -
*
W ,' »»/ ,
\ '***•
'*X V
-
*
-
*
-
sw
________________________________
0 0.35 0.30 0.25 0.20 0.15 0.10 0.05 0.
NE
*7--
'• * i . E
f 'A < ' » »
» /'
Ava Cone = 0.071 ± 0.017 na/m3
SE
________________________________
30 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.'
Pollutant Concentration (ng/m )
-------
Figure F-48. Hexavalent Chromium Pollution Rose for BTUT
oo
0.10
0.08
0.06
0)
0.04
C 0.02
o
+J
£
•4-*
S o.oo
o
o
o
•£ 0.02
£. 0.04
0.06
0.08
0.10
NW
W
0.10
?
— Screening Value 0.083 ng/m
SW Avg Cone = 0.030 ± 0.005 ng/m3
NE
• •
SE
0.08
0.06
0.04
0.02
0.00
0.02
0.04
0.06
0.08
0.10
Pollutant Concentration (ng/m
-------
Figure F-49. Hexavalent Chromium Pollution Rose for BURVT
0.20
VO
NW
NE
0.18
0.16
0.14
0.12
0.10
ro~~ 0 08
E
"3) 0.06
C 0.04
0
13 0.02
•S
m 0 00
o
^
0 0.02
o
•£ 0.04
•3 0.06
"o
Q_ 0.08
0.10
0.12
0.14
0.16
0.18
0.20
0
— Screening Value 0.083 ng/m3
* *
*
f~*~~
,<''' ^
/ *
/ +
/ » *,
W * **»
1
^ \ ' *
V *
X
x-'-lv
* ^
^ ^
-
-
sw
_________________________
20 0.18 0.16 0.14 0.12 0.10 0.08 0.06 0.04 0.02 0.
Ava Cone = 0.071 ± 0.017 na/m3
•
""•>.,
.
• x\
\
* \ E
•^
--/ .
r
SE
30 0.02 0.04 0.06 0.08 0.10 0.12 0.14 0.16 0.18 0.;
Pollutant Concentration (ng/m
-------
Figure F-50. Hexavalent Chromium Pollution Rose for CHSC
0.18
0.15
0.12
0.09
0)
0.06
O 0.03
+J
(0
o.oo
o
0.03
•4-*
I
= 0.06
O
Q.
0.09
0.12
0.15
w
NW
— Screening Value 0.083 ng/m
NE
SW
0.18
0.18
Avg Cone = 0.035 ± 0.012 ng/m
SE
0.15 0.12 0.09 0.06 0.03 0.00
Pollutant Concentration (ng/m
0.03 0.06
3\
0.09
0.12
0.15
0.18
-------
Figure F-51. Hexavalent Chromium Pollution Rose for DEMI
0.18
NW
0.15
0.12
0.09
-
0.06
atio
0
O
CO
0.00
W
—Screening Value 0.083 ng/m
NE
0.03
O
^
o
U
4-*
1
= 0.06
O
Q.
0.09
0.12
0.15
0.18
0.18
' *
*
^i
»»
.* » »
»-
4 »»
Ava Cone = 0.066 ± 0.009 na/m3
SE
0.15
0.12
0.09
0.06
0.03
0.00
0.03 0.06
3\
0.09
0.12
0.15
0.18
(ng/mj
-------
Figure F-52. Hexavalent Chromium Pollution Rose for ETAL
to
0.10 i
0.08
0.06
0)
0.04
C 0.02
o
+J
£
•4-*
S o.oo
o
o
o
•£ 0.02
(£ 0.04
0.06
0.08
0.10
NW
W
0.10
?
— Screening Value 0.083 ng/m
SW Avg Cone = 0.049 ± 0.012ng/m3
NE
SE
0.08
0.06
0.04
0.02
0.00
0.02
0.04
0.06
0.08
0.10
Pollutant Concentration (ng/m
-------
Figure F-53. Hexavalent Chromium Pollution Rose for GPCO
0.15
NW
!
0.12
0.09
m~* 0.06
0)
0.03
g
+J
(0
4-*
S o.oo
o
o
o
•£ 0.03
(£ 0.06
0.09
0.12
W
— Screening Value 0.083 ng/m
•
» »
NE
0.15
sw
0.15
/' »
Avg Cone = 0.030 ± 0.005 ng/rn
SE
0.12
0.09
0.06
0.03
0.00
0.03
0.06
0.09
0.12
0.15
Pollutant Concentration (ng/m
-------
Figure F-54. Hexavalent Chromium Pollution Rose for GPMS
0.15
NW ?
! — Screening Value 0.083 ng/m
0.12
0.09
m~* 0.06
O)
0.03
o
+J
(0
•4-*
S o.oo
o
o
o
•£ 0.03
£. 0.06
0.09
0.12
W
t*
^
NE
* t
0.15
sw
0.15
Avg Cone = 0.025 ± 0.004 ng/rn
SE
0.12
0.09
0.06
0.03
0.00
0.03
0.06
0.09
0.12
0.15
Pollutant Concentration (ng/m
-------
Figure F-55. Hexavalent Chromium Pollution Rose for HAKY
0.15
0.12
0.09
m~* 0.06
0)
_c_
C 0.03
o
+J
(0
4-*
S o.oo
o
o
o
•£ 0.03
£. 0.06
0.09
0.12
W
NW
?
— Screening Value 0.083 ng/m
NE
SW
0.15
*. ~ *
Avg Cone = 0.036 ± 0.009 ng/rn
SE
0.15 0.12
0.09
0.06
0.03
0.00
0.03
0.06
0.09
0.12
0.15
Pollutant Concentration (ng/m
-------
Figure F-56. Hexavalent Chromium Pollution Rose for LAOR
0.40 i
0.35
0.30
0.25
0.20
"£ 0.15
O)
S 0.10
o
= 0.05
5
S o.oo
NW
W
— Screening Value 0.083 ng/m3
NE
0 0.05
5
0.10
O 0.15
Q.
0.20
0.25
0.30
0.35
sw
0.40
Ava Cone = 0.034 ± 0.027 na/m
SE
0.40 0.35 0.30 0.25 0.20 0.15 0.10 0.05 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40
Pollutant Concentration (ng/m3)
-------
Figure F-57. Hexavalent Chromium Pollution Rose for MVWI
0.15
0.12
0.09
m~* 0.06
0)
_c_
C 0.03
o
+J
£
•4-*
S o.oo
o
o
o
•£ 0.03
£. 0.06
0.09
0.12
W
NW
?
— Screening Value 0.083 ng/m
NE
0.15
sw Avq Cone = 0.032 ± 0.011 ng/rn3
SE
0.15
0.12
0.09
0.06
0.03
0.00
0.03
0.06
0.09
0.12
0.15
Pollutant Concentration (ng/m
-------
Figure F-58. Hexavalent Chromium Pollution Rose for NBAL
oo
0.15 i
NW
0.12
0.09
m~* 0.06
O)
_c_
C 0.03
g
+J
(0
4-*
S o.oo
o
o
o
•" 0.03
£. 0.06
0.09
0.12
W
0.15
0.15
?
— Screening Value 0.083 ng/m
sw Avq Cone = 0.052 ± 0.017 ng/rn3
NE
SE
0.12
0.09
0.06
0.03
0.00
0.03
0.06
0.09
0.12
0.15
Pollutant Concentration (ng/m
-------
Figure F-59. Hexavalent Chromium Pollution Rose for NBIL
0.15
0.12
0.09
m~* 0.06
0)
NW
0.03
g
"ro
0 0-00
o
o
o
•£ 0.03
£. 0.06
0.09
0.12
W
?
— Screening Value 0.083 ng/rrT
NE
0.15
0.15
•
' »---
Ava Cone = 0.036 ± 0.007 na/m3
SE
0.12
0.09
0.06
0.03
0.00
0.03
0.06
0.09
0.12
0.15
Pollutant Concentration (ng/m
-------
Figure F-60. Hexavalent Chromium Pollution Rose for PRRI
0.15
0.12
0.09
m~* 0.06
O)
_c_
C 0.03
O
+J
£
•4-*
S o.oo
o
o
o
•£ 0.03
£. 0.06
0.09
0.12
NW
W
?
— Screening Value 0.083 ng/m
NE
sw
0.15
0.15
\v
* <
Avg Cone = 0.028 ± 0.007 ng/rn
SE
0.12
0.09
0.06
0.03
0.00
0.03
0.06
0.09
0.12
0.15
Pollutant Concentration (ng/m
-------
Figure F-61. Hexavalent Chromium Pollution Rose for PVAL
0.10 i
0.08
0.06
0)
0.04
C 0.02
o
+J
£
•4-*
S o.oo
o
o
o
•£ 0.02
£. 0.04
0.06
0.08
NW — Screening Value 0.083 ng/m3
W
Avg Cone = 0.016 ± 0.007 ng/m
NE
sw
0.10
0.10
SE
0.08
0.06
0.04
0.02
0.00
0.02
0.04
0.06
0.08
0.10
Pollutant Concentration (ng/m
-------
Figure F-62. Hexavalent Chromium Pollution Rose for S4MO
to
OA5
NW —Screening Value 0.083 ng/m3
0.12
0.09
E
0)
0.06
-------
Figure F-63. Hexavalent Chromium Pollution Rose for SDGA
0.15
0.12
0.09
m~* 0.06
O)
NW
0.03
o o.oo
o
o
o
•£ 0.03
3
£. 0.06
0.09
0.12
w
?
— Screening Value 0.083 ng/rrT
• n
**
NE
0.15
0.15
Ava Cone = 0.040 ± 0.007 na/m3
SE
0.12
0.09
0.06
0.03
0.00
0.03
0.06
0.09
0.12
0.15
Pollutant Concentration (ng/m
-------
Figure F-64. Hexavalent Chromium Pollution Rose for SEWA
0.40
NW
NE
0.35
0.30
0.25
0.20
^ 0.15
1
S 0.10
§
U= 0.05
5
-
m 0 00
O
^
0 0.05
4-*
J5 0.10
3
"5 0.15
Q_
0.20
0.25
0.30
0.35
0.40
0.
— Screening Value 0.083 ng/m3
*
r"";7-
w /' V *f|*
*^
^^.. ;
-
•
*
-
-
-
sw
^^^^^^^^^^^^^^^^^_?_
40 0.35 0.30 0.25 0.20 0.15 0.10 0.05 0.
;"N
ft
F|.v'
* *
•
Ava Cone = 0.054 ± 0.012 na/m3
30 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.'
Pollutant Concentration (ng/m
-------
Figure F-65. Hexavalent Chromium Pollution Rose for SIAL
0.15 i
NW
0.12
0.09
m~* 0.06
0)
_c_
C 0.03
g
+J
(0
4-*
S o.oo
o
o
o
•" 0.03
£. 0.06
0.09
0.12
W
?
— Screening Value 0.083 ng/m
NE
0.15
0.15
sw Avq Cone = 0.052 ± 0.016 ng/rn3
SE
0.12
0.09
0.06
0.03
0.00
0.03
0.06
0.09
0.12
0.15
Pollutant Concentration (ng/m
-------
Figure F-66. Hexavalent Chromium Pollution Rose for SYFL
0.15
0.12
0.09
m~* 0.06
O)
_c_
C 0.03
o
+J
£
•4-*
S o.oo
o
o
o
•£ 0.03
£. 0.06
0.09
0.12
NW
W
?
— Screening Value 0.083 ng/m
NE
* \
sw
0.15
0.15
Avg Cone = 0.042 ± 0.011 ng/rn
SE
0.12
0.09
0.06
0.03
0.00
0.03
0.06
0.09
0.12
0.15
Pollutant Concentration (ng/m
-------
Figure F-67. Hexavalent Chromium Pollution Rose for UNVT
0.15
0.12
0.09
m~* 0.06
O)
_c_
C 0.03
o
+J
£
•4-*
S o.oo
o
o
o
•£ 0.03
(£ 0.06
0.09
0.12
W
NW
?
— Screening Value 0.083 ng/m
NE
0.15
sw Avq Cone = 0.035 ± 0.013 ng/rn3
SE
0.15
0.12
0.09
0.06
0.03
0.00
0.03
0.06
0.09
0.12
0.15
Pollutant Concentration (ng/m
-------
Figure F-68. Hexavalent Chromium Pollution Rose for WADC
oo
U.'-HJ
0.35
0.30
0.25
0.20
"I 0.15
0)
S 0.10
§
~ 0.05
i=
£7 n nn
Q) U.UU
0 0.05
| 0.10
D
"5 0.15
0_
0.20
0.25
0.30
Ooc
.00
0.40
0.
NW ... Screening Value 0.083 ng/m3 N
-
-
-
-
.
X''"*
' A^^
V^J
* „,
•« ^
~ — _ .
~
sw
s
40 0.35 0.30 0.25 0.20 0.15 0.10 0.05 0.
NE
s
A l ^
».
"* * .-''
^
Avq Cone = 0.039 ± 0.013 nq/m3
SE
_____________________^
30 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.'
Pollutant Concentration (ng/m )
-------
Figure F-69. Hexavalent Chromium Pollution Rose for WETX
0.15 i
NW
0.12
0.09
m~* 0.06
0)
_c_
C 0.03
g
+J
(0
4-*
S o.oo
o
o
o
•" 0.03
£. 0.06
0.09
0.12
W
?
— Screening Value 0.083 ng/m
NE
0.15
0.15
sw Avq Cone = 0.041 ± 0.013 ng/rn3
SE
0.12
0.09
0.06
0.03
0.00
0.03
0.06
0.09
0.12
0.15
Pollutant Concentration (ng/m
-------
United States Office of Air Quality Planning and Standards Publication No. EPA-454/R-07-005
Environmental Protection Emissions, Monitoring and Analysis Division February 2007
Agency Research Triangle Park, NC 27711
-------