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HomeMy WebLinkAboutFinal FSP 5725 W 38th Ave (303) 980-4101
FINAL
Phase II Environmental Site Assessment
Field Sampling Plan for
5725 West 38th Avenue
Wheat Ridge, Colorado
RFP No. 13-11
January 15, 2016
Prepared by
Prepared by
12295 W. 48th Avenue
Wheat Ridge, CO 80033
(303) 980-4101
City of Wheat Ridge
Community Development Department
Municipal Building, 7500 W. 29th Ave
Wheat Ridge, Colorado 80033
Prepared for
Final
Phase II Environmental Site Assessment
Field Sampling Plan
for
5725 West 38th Avenue
Wheat Ridge, Colorado
Prepared for
City of Wheat Ridge
Community Development Department
Municipal Building, 7500 W. 29th Ave
Wheat Ridge, Colorado 80033
Prepared by
12295 W. 48th Avenue, Unit A
Wheat Ridge, Colorado 80033
(303) 980-4101
January 15, 2016
Final FSP for a Phase II ESA
5725 West 38th Avenue
Wheat Ridge, Colorado
ii
Organizational Approval
David Groy, P.G. / Project Manager Date
Joseph Mastromarchi, P.G. / Project QA Manager Date
Claude Murray, P.G. / Field Operations Manager Date
Jason Kahlert, P.G. / Sampling Team Leader Date
Lyle Ardourel / Sampling Team Leader Date
Steve Art / City of Wheat Ridge, Date
Economic Development/Urban Renewal Manager
William Rothenmeyer / USEPA, Brownfields Project Manager Date
Final FSP for a Phase II ESA
5725 West 38th Avenue
Wheat Ridge, Colorado
iii
Table of Contents
Acronyms .......................................................................................................................................... v
1 Introduction ...............................................................................................................................6
1.1 Purpose and Scope ........................................................................................................................ 6
1.2 Project Personnel .......................................................................................................................... 8
1.3 Field Sampling Plan Organization.................................................................................................. 8
2 Site Background .........................................................................................................................9
2.1 Site Location and Description ....................................................................................................... 9
2.2 Site History .................................................................................................................................... 9
2.3 Physical Setting ........................................................................................................................... 12
2.4 Previous Investigations ............................................................................................................... 13
3 Records Search ......................................................................................................................... 13
4 Field Activities .......................................................................................................................... 14
4.1 Mobilization/Demobilization ...................................................................................................... 14
4.2 Borehole Drilling/Direct-Push Advancement .............................................................................. 15
4.3 Temporary Monitoring Well Installation .................................................................................... 18
4.4 Groundwater Sampling ............................................................................................................... 18
4.5 Soil Gas Sampling ........................................................................................................................ 18
4.6 Asbestos Survey .......................................................................................................................... 20
4.6.1 ACM Sampling Procedures and Methodology .................................................................... 20
4.7 IDW Management ....................................................................................................................... 22
4.8 Data Management ...................................................................................................................... 22
4.9 Additional Field Activities............................................................................................................ 23
5 Reporting and Schedule ............................................................................................................ 23
6 References ............................................................................................................................... 24
Tables
Table 1 Physical Setting ............................................................................................................................... 12
Table 2 Rationale for Proposed Soil Boring Locations ................................................................................ 16
Table 3 Anticipated Assessment Samples ................................................................................................... 19
Final FSP for a Phase II ESA
5725 West 38th Avenue
Wheat Ridge, Colorado
iv
Figures
Figure 1 Site Location Map ........................................................................................................................... 7
Figure 2 Adjacent Property Use Map .......................................................................................................... 11
Figure 3 Proposed Borehole/Well Location Map ........................................................................................ 17
Appendix A
Updated UFP-QAPP Worksheet #2
Updated UFP-QAPP Worksheet #5
Updated UFP-QAPP Worksheet #7
Updated UFP-QAPP Worksheet #8
Method 8260C and TO-15 Detection Limits
Contaminants of Primary Concern
EPA Regional Screening Levels, November 2015
EPA Generic Soil Gas Screening Levels
Final FSP for a Phase II ESA
5725 West 38th Avenue
Wheat Ridge, Colorado
v
Acronyms
ALS
ASTM
bgs
CDPHE
CERCLA
ALS Environmental
American Society for Testing and Materials
below ground surface
Colorado Department of Public Health and Environment
Comprehensive Environmental Response, Compensation, and Liability Act
EPA U.S. Environmental Protection Agency
ESA
FSP
IDW
HMWMD
MMP
Environmental Site Assessment
Field Sampling Plan
investigative derived waste
Hazardous Materials Waste Management Division
Materials Management Plan
MS
MSD
Origins
OPS
OSWER
PID
QA
QAPP
QC
matrix spike
matrix spike duplicate
Origins Laboratory, Inc.
Division of Oil and Public Safety
Office of Solid Waste and Emergency Response
photoionization detector
Quality Assurance
Quality Assurance Project Plan
Quality Control
REC recognized environmental condition
RMC RMC Consultants, Inc.
SSHO
SSHP
Site Safety Health Officer
Site Safety Health Plan
SOP
UFP
Standard Operating Procedure
Uniform Federal Policy
USGS United States Geological Survey
VCP
VOC
Voluntary Cleanup Plan
volatile organic compounds
Final FSP for a Phase II ESA
5725 West 38th Avenue
Wheat Ridge, Colorado
6
1 Introduction
RMC Consultants, Inc. (RMC) has prepared this Site-Specific Field Sampling Plan (FSP) for a planned
Phase II Environmental Site Assessment (ESA) for the commercial property located at 5725 West 38th
Avenue in Wheat Ridge, Jefferson County, Colorado, hereafter referred to as the “subject property”. A
Phase II ESA was recommended for the subject property based on the presence of recognized
environmental conditions (RECs) identified in connection with the subject property during the Phase I
ESA completed by RMC in December 2015 (RMC, 2015). The objective of the Phase II work and
organization of this FSP is provided in the following subsections. The site location is shown on Figure 1.
1.1 Purpose and Scope
The Phase II ESA is being conducted as part of the Community-Wide Brownfields Assessment Project for
Wheat Ridge, Colorado. The City of Wheat Ridge has received funding from the U.S. Environmental
Protection Agency (EPA) to assess properties within the City’s identified redevelopment areas that have
or are perceived to have environmental concerns related to previous uses or the age of the buildings on
site. The City of Wheat Ridge will be acting as the lead authority during the completion of the Phase II
ESA, with support from the EPA Region 8. The objectives of the Phase II ESA are to further assess RECs
identified during the Phase I ESA (RMC, 2015) and identify whether site contamination caused by
current or previous use of the subject property exists. Additionally, findings of the Phase II ESA will be
used to determine the need for developing a Materials Management Plan (MMP) or Voluntary Cleanup
Plan (VCP). If an environmental concern is confirmed during the Phase II ESA, the subject property may
require a VCP and implementation before it is sold, refinanced, or redeveloped.
Phase II work shall follow the standards for Phase II ESAs established by the American Society for Testing
and Materials (ASTM) in ASTM Standard E1903-11, Standard Practice for Environmental Site
Assessments: Phase II Environmental Site Assessment Process and the standards for asbestos which are
included under National Emission Standard for Hazardous Air Pollutants (NESHAP) Subpart M, and the
Asbestos Hazard Emergency Response Act of 1986 (AHERA). Regulation of asbestos exposure in the
occupational environment is the responsibility of the Occupational Safety and Health Administration
(OSHA). State regulations pertaining to asbestos are included under Colorado Regulation No. 8.
Completion of Phase II work will also be consistent with the requirements of the Colorado Voluntary
Cleanup Program evaluation criteria for soil (e.g., risk-based guidance: EPA Regional Screening Levels)
and water (e.g., Colorado state surface and ground water standards), where applicable.
This FSP is site-specific and addresses all field work associated with the activities necessary to complete
the Phase II ESA for the subject. A Uniform Federal Policy-Quality Assurance Project Plan (UFP-QAPP)
and Site Safety and Health Plan (SSHP) have also been prepared for the Phase II work associated with
the Wheat Ridge Community-Wide Brownfields Assessment Project and are included as separate
documents (RMC, 2014a and RMC, 2014b, respectively). The UFP-QAPP describes the steps taken to
ensure that environmental data collected are of the correct type and quality required for specific
decisions and use associated with the field work for the project. The SSHP provides the safety and
health guidelines to be followed during the performance of the field portion of this project. All work
described in this FSP will comply with all applicable federal, State of Colorado, and local laws, including
the requirements of the Comprehensive Environmental Response, Compensation, and Liability Act
(CERCLA) and any other environmental standards necessary to meet the project objectives.
Copyright:© 2013 National Geographic Society, i-cubed
G :\w o r k d i r s \W h e a t R i d g e \m x d \W h e a t R i d g e \5 7 2 5 W 3 8 t h F i g u r e 1 .m x d 1 1 /1 9 /2 0 1 5 8 :4 0 :2 6 A M j k a h l e r t
FIGURE 1
Data Sources: City of Wheat Ridge andRMC Consultants, Inc.; Arvada 7.5' 1965Revised 1994 USGS Quad.
5725 W 38th AvenueCITY OF WHEAT RIDGEBROWNFIELDS ENVIRONMENTAL SERVICES
Site Location Map
Legend
Subject Property
SUBJECT PROPERTYLOCATION
0 1,000 2,000
Feet
£
1:24,000
Final FSP for a Phase II ESA
5725 West 38th Avenue
Wheat Ridge, Colorado
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1.2 Project Personnel
The key personnel for this project are David Groy (Project Manager), Claude Murray (Field Operations
Manager), Joseph Mastromarchi (Project Quality Assurance [QA] Manager), Jason Kahlert (Site Safety
and Health Officer [SSHO] and Sampling Team Leader), Javier Vargas-Johnson (Sampling Team Member),
and Lyle Ardourel (Sampling Team Leader). The responsibilities of these positions and assigned RMC
personnel are outlined in the Final UFP-QAPP for Brownfields Environmental Consultant/Testing Services
(RMC, 2014a). RMC may substitute onsite personnel on specific tasks as long as each person possesses
the skills and meets the necessary requirements for the role.
1.3 Field Sampling Plan Organization
This document is organized as follows:
Section 1. Introduction: Provides the purpose and scope of the Phase II ESA tasks and other
introductory information.
Section 2. Site Background: Provides an overview of the site history and summarizes findings
from the Phase I ESA.
Section 3. Record Search: Summarizes the proposed continuation of the record search regarding
the subject property.
Section 4. Field Activities: Summarizes the proposed Phase II ESA activities and any variances in,
or additions to, the standard operating procedures (SOPs) listed in the approved QAPP (RMC,
2014a).
Section 5. Project Deliverables and Schedule
Section 6. References
As noted previously, a UFP-QAPP and SSHP have been prepared for the Phase II ESA work associated
with the Wheat Ridge Community-Wide Brownfields Assessment Project and are included by reference
as separate documents. Any site-specific QA measures and/or safety and health guidelines that are not
addressed in the project UFP-QAPP and SSHP, but applicable for this Phase II ESA, will be included in this
FSP. The UFP-QAPP Worksheet #2, QAPP Identifying Information (a crosswalk to related documents),
Worksheet #5, Project Organizational Chart, Worksheet #7, Personnel Responsibilities and
Qualifications, and Worksheet #8, Special Personnel Training Requirements, has been updated to
include corresponding FSP sections as they relate to the required QAPP elements and is provided in
Appendix A of this FSP. Appendix A also includes the laboratory quantification limit (reporting limit) and
the laboratory detection limit (method detection limit) for EPA Methods 8260C and TO-15 for analysis of
volatile organic compounds (VOCs), as well as tables highlighting the contaminants of primary concern.
The updated worksheet will assist FSP users in identifying the location of project-specific information
within the FSP and UFP-QAPP. This FSP will be used jointly with the UFP-QAPP in completing Phase II
ESA tasks for the subject property.
Final FSP for a Phase II ESA
5725 West 38th Avenue
Wheat Ridge, Colorado
9
2 Site Background
2.1 Site Location and Description
The subject property consists of approximately 0.64 acres of property on the north side of West 38th
Avenue. The 0.64-acre subject property is improved with a single-story house with a finished basement,
detached garage, a gardening shed, an outbuilding that was used as an office, and a former chicken
coop converted to storage. Access to the house is through a walkway from West 38th Avenue, or
through a gated driveway on Eaton Street. Mr. Ron Westover is currently occupying the basement unit
of the house. Another tenant is occupying the first floor unit. Both tenants appear to be in the process
of vacating the property. The northern half of the property is enclosed by a wooden fence. A decorative
metal fence, on the southern edge of the subject property, extends along West 38th Avenue; this fence
is also in front of the neighboring property on West 38th Avenue. A lighted outdoor sign is located in the
front yard of the subject property. The lettering on the sign is no longer present. This sign may have
advertised the pre-existing dealership (RMC, 2015). The site location is depicted on Figure 1, which was
reproduced from a portion of the United States Geological Survey (USGS) 7.5 minute series topographic
map.
A property use map, included as Figure 2, illustrates residential and commercial businesses located on
the adjoining properties. The subject property is bordered by residential properties to the north, east,
southeast, and immediately to the west, bordered by commercial properties farther to the west, and to
the south, across West 38th Avenue.
The observed characteristics of the subject property identified during the Phase I site reconnaissance is
provided in the Phase I ESA report (RMC, 2015), as well as further details of the adjoining properties.
2.2 Site History
The following summary is based on a review of historical information presented in the Phase I ESA
report (RMC, 2015). During the Phase I ESA, RMC reviewed reasonably ascertainable historical sources
with the objective of identifying obvious uses of the subject property and adjoining sites from the
present, back to the subject property’s first developed use, or back to 1940, whichever was earlier.
Standard historical sources include: USGS topographic maps; aerial photographs; local street
directories; and zoning/land use records.
Based on review of available historic information, Assessor records show that the subject property was
built in 1933. The historical aerial photograph from 1937 shows multiple buildings on the subject
property. Mr. Westover, the tenant at the time of the site reconnaissance and former owner of the
property, stated that he has lived on the property for the past 18 years, and that the property has been
strictly residential in that time. He stated that the previous owner operated a wholesale auto resale
business and that he repaired and sold automobiles on the property. Many auto parts were observed on
the subject property during the site reconnaissance.
Adjoining properties to the east, north, and west have been historically occupied by residential and
commercial units. Detailed history of these properties is provided in the Phase 1 ESA report (RMC,
2015). Historical aerial photographs show that in 1937 the area to the south of the subject property was
primarily agricultural. By 1950, the side streets Fenton, North Depew, and Chase had been constructed,
but had not been developed yet. The historical aerial photograph from 1954 shows residential
Final FSP for a Phase II ESA
5725 West 38th Avenue
Wheat Ridge, Colorado
10
development on Fenton Street and commercial development along West 38th Avenue. More recent
historical aerial photographs show the continuing development of commercial properties on West 38th
Avenue and the addition of apartment complexes on North Depew Street, south of the subject property.
The Cole Criss-Cross Directory from 1968 to 2013 lists many businesses along West 38th Avenue in the
proximity of the subject property. On the 1968 Criss-Cross Directory a business named “Dutch HLDY
Cleaner” is listed at the 5730 address, which would be directly across West 38th Avenue and
hydrogeologically up-gradient to the subject property. RMC was not able to obtain further information
regarding the business. The street directories from 1978 up to 2003 also list an auto parts business, first
Wheat Ridge Auto Parts, and later, CarQuest, at 5712 West 38th Avenue which is hydrogeologically up-
gradient to the subject property.
G :\w o r k d i r s \W h e a t R i d g e \m x d \W h e a t R i d g e \5 7 2 5 W 3 8 t h P I I F i g u r e 2 .m x d 1 /4 /2 0 1 6 7 :4 8 :5 9 A M j k a h l e r t
FIGURE 25725 WEST 38TH AVENUECITY OF WHEAT RIDGEBROWNFIELDS ENVIRONMENTAL SERVICES
Site Aerial Photograph Showing Adjacent Property Use
Data Sources: City of Wheat Ridge, RMC Consultants, Inc., Esri, DigitalGlobe,GeoEye, i-cubed, USDA, & USGS.
Legend
Site Boundary
Comercial
Residential
100 0 10050
Feet
£
1:2,400
4. Commercial5800-5810 W 38th Ave
6 . C o m m e r c i a l
V a r i o u s B u s i n e s s e s
5 8 0 7 W 3 8 t h A v e
5 . R e s i d e n t i a l
5 7 8 5 W 3 8 t h A v e 1. Residential3871 Eaton St
1. Residential3875 Eaton St
2. Residential3870 Eaton St
2 . R e s i d e n t i a l
5 6 7 5 W 3 8 t h
A v e
2 . R e s i d e n t i a l
5 6 9 5 W 3 8 t h
A v e
2. Residential3850 Eaton St
3 . R e s i d e n t i a l
5 7 0 0 W 3 8 t h A v e
4 . C o m m e r c i a l
O r n a m e n t a l B e a d s
5 7 1 2 W 3 8 t h A v e
4 . C o m m e r c i a l
L a F o n d a
5 7 5 0 W 3 8 t h A v e
4 . C o m m e r c i a l
A m e r i c a n E a g l e T a x
5 7 9 0 F e n t o n S t 3. Residential5630-5690 W 38th Ave
West 38th Avenue
E a t o n S t r e e t
F e n t o n S t r e e t
Final FSP for a Phase II ESA
5725 West 38th Avenue
Wheat Ridge, Colorado
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2.3 Physical Setting
RMC has reviewed the current USGS 7.5-minute topographic map and other reasonably ascertainable
physical setting sources to obtain information concerning the geologic, hydrogeologic, hydrologic, and
topographic characteristics of the site. An excerpt of the topographic map reviewed as a source of the
site’s physical setting is included as Figure 1
Table 1 Physical Setting
Physical Setting of the Subject Property Source
Site Address(s) or
Location
5725 West 38th Avenue, 3825 Eaton
Wheat Ridge, Jefferson County, Colorado User Provided
Parcel Identification
Number (s) 39-244-16-025 Jefferson County
Assessor’s Records Land Area 28,038 square feet (approx. 0.64 acres)
Latitude/Longitude Latitude: 39.769564 , Longitude: -105.059701
(approximate center of the site) Google Maps
Topography
Location on Public Land
Survey System (PLSS)
Southwest ¼ Southeast ¼, Section 24, Township 3
South, Range 69 West, 6th Principal Meridian USGS Topographic Map,
Arvada, Colorado
Quadrangle, 1965,
Revised 1994
Elevation
Approximately 5,413 feet above mean sea level
(MSL) – National Geodetic Vertical Datum (NGVD
1929)
Gradient Gently sloping to the north
Hydrogeology
Estimated Depth to
Ground Water
Approximately 10 feet below ground surface, based
on water levels measured in wells approximately
one quarter mile from the subject property.
Environmental Data
Resources (EDR) Radius
report
Hydrogeologic Gradient
Estimated to be north, consistent with the surface
topographic gradient (gentle slope down to the
north) toward the eastward-flowing Clear Creek.
USGS Topographic Map,
Arvada, Colorado
Quadrangle, 1965,
Revised 1994
Geology
Formation
Surficial Quaternary alluviums and gravels are
underlain by the Denver and Arapahoe Formations
(Late Cretaceous/Early Tertiary Series)
Geologic Map of Colorado
(NW Quadrangle), Ogden
Tweeto, 1979
Description
Bedrock is Sandstone, mudstone, claystone, and
conglomerate. The Denver formation is
characterized by andesitic material.
Soil
Type Nunn, clay loam, 0 to 2 percent slopes; 2 to 5
percent slope along northern edge of property
RMC (2015)
Description
The Nunn soil type is a good farmland soil if
irrigated. It is typically well drained with moderate
infiltration rates.
Final FSP for a Phase II ESA
5725 West 38th Avenue
Wheat Ridge, Colorado
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2.4 Previous Investigations
A Phase I ESA was completed in December 2015 by RMC Consultants, Inc. (RMC, 2015) to identify RECs,
as defined in ASTM E 1527-13 and the EPA AAI rule, associated with the subject property. The following
observations were made during the Phase I site reconnaissance:
There is evidence, including auto parts and containers of motor oil and other automotive fluids,
that the subject property was used to repair automobiles. Mr. Ron Westover, the tenant and
former owner, stated that the previous owner operated a wholesale auto dealership at the
property, where he bought wrecked cars, made repairs, and then sold them.
The review of historical street directories identified a business called Dutch HLDY Cleaner at 5730 West
38th Avenue that operated in 1968. The property is up-gradient of the subject property, located directly
south of the subject property across West 38th Avenue. Also, the address of this business, 5730 West
38th Avenue, no longer exists. The current addresses on the south side of West 38th Avenue are 5712
adjacent to 5750, indicating redevelopment of that area. No other information on the business is
available. It is possible that his business was a dry cleaner. Dry cleaning equipment was historically
unregulated and often created lasting environmental contamination. It is possible that the soil and
groundwater at the subject property has been impacted by unreported dry cleaning solvent releases
from the Dutch HLDY Cleaner.
The initial review of environmental records identified 26 regulatory listings within the ASTM-specified
approximate minimum search distances. Based on the database review showing the regulatory status,
distance, and/or topographic location, the facility listings do not present RECs in connection with the
subject property.
Based on the age of the structures on the 5725 West 38th Avenue property, it is likely that some or all
structures contain asbestos containing building materials and lead-based paint. Also, the well at the
subject property needs to be investigated further to confirm the location and status. The well likely
needs to be properly maintained or abandoned. The well is a direct conduit from the ground surface to
the water table that presents a potential pathway for any contamination to adversely affect
groundwater quality. These observation fell outside the scope of the Phase I ESA (non-scope
considerations). However, there may be environmental issues or conditions at the subject property that
parties may wish to assess in connection with commercial real estate development.
The Phase I assessment revealed evidence of two RECs in connection with the subject property
including:
A wholesale auto dealership was present on the subject property where wrecked cars were
repaired and sold.
A historical dry cleaner was present in the late 1960s at 5730 West 38th Avenue adjoining and
hydrologically upgradient of the subject property.
3 Records Search
The Phase II ESA will include a more thorough records search for potential information that was not
readily available during the Phase I ESA. We plan to contact the Colorado Department of Public
Final FSP for a Phase II ESA
5725 West 38th Avenue
Wheat Ridge, Colorado
14
Health and Environment (CDPHE) Voluntary Cleanup (VCP) staff for possible additional information
regarding the subject property and for the property at 5730 West 38th Avenue.
4 Field Activities
The field portion of the Phase II ESA will consist of sampling activities to determine if, in fact, there
are any contaminants on the subject property that may pose a threat to redevelopment and future
land use. Specifically, past use as a dealership and repair facility and release of petroleum products,
and asbestos containing material associated with building structures. Hazardous material releases
from a nearby property, a potential dry cleaner, will be assessed as well. The following section
discusses the field investigation tasks. SOPs for the proposed field activities are provided in Appendix
A of the project QAPP (RMC, 2014a). Any variances to SOPs outlined in the QAPP will be addressed
during the corresponding field activity discussion.
All laboratory analytical results, laboratory and field quality assurance/quality control (QA/QC)
results, field photo ionization detector (PID) soil screening results, and sample location measurement
results are critical information. All other results (e.g., field water quality parameter measurements)
are for informational purposes only.
This FSP covers a single sampling event for all media to be sampled. Sample collection methods, as
described in this FSP and associated QAPP, will be followed to minimize variability between samples.
Instrumentation used during this sampling event will be calibrated and operated per manufactures
specifications, details described in this FSP and associated QAPP, and per regulatory requirements
(e.g., the PID instrument used for soil screening will be calibrated before each use, then again every 4
hours or at the completion soil sampling, which ever come first, to minimize the effects of instrument
drift). Should equipment failure occur, the subject equipment will be recalibrated, repaired, or
replaced, as required.
4.1 Mobilization/Demobilization
Mobilization includes the preparation required to accomplish each phase of the field investigation. RMC
and their contractors will provide all field support personnel for this effort. A variety of tasks will be
performed during mobilization activities, including but not limited to:
Coordinate with property owners to schedule sampling activities and obtain keys for entry to
structures;
Obtain utility clearances;
Identify and establish decontamination and investigative derived waste (IDW) staging areas, if
necessary, for field operations;
Procure personal safety equipment, sample containers, and all miscellaneous field supplies;
Provide field personnel copies of the QAPP and SSHP;
Conduct a site orientation with all personnel, including subcontractors, to discuss planned
drilling and sampling activities, site health and safety issues, and any restrictions that may be
imposed due to site conditions;
Discuss options for the possibility of the sampling sites becoming inaccessible;
Field-mark approximate locations of the proposed soil boring/temporary monitoring well
locations.
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Prior to the start of drilling or direct-push activities, the locations of all utilities will be determined for
the site. RMC personnel will notify the Utility Notification Center of Colorado (Colorado 811). RMC will
also identify overhead power and telephone lines to avoid hazards during drilling activities. RMC
personnel will ensure all utilities in the vicinity of the proposed boreholes have been suitably located
and ensure a safe working environment during drilling or direct-push activities. If deemed necessary by
RMC personnel, the public utility locate service may be supplemented by hiring a private utility locating
service.
Demobilization will include decontaminating equipment used on the project and completing site
cleanup. All equipment and supplies brought on to the site will be removed from the site. RMC and our
subcontractors will take care to minimize impacts to the property and we will restore the site to near
original condition should impacts occur.
4.2 Borehole Drilling/Direct-Push Advancement
Soil borings will be advanced using a track-mounted GeoProbe® 7730 DT, or another device similar in
drilling capability, operated by Site Services Drilling, LLC, based in Golden, Colorado. Four soil borings
will be advanced at approximate locations depicted on Figure 3. However, borehole locations may need
to be adjusted in the field following the location of underground utilities, site access, or observed
conditions. The primary objective of each proposed boring location is summarized in Table 2. All
borings will be advanced to 20 feet below ground surface (bgs) unless field screening indicators suggest
the presence of contaminants of concern (e.g., odors, soil staining, volatile organic compounds detected
with the PID). If field screening indicates potential contaminants may be present at or near 20 feet bgs,
the borehole will be advanced to a total depth of 30 feet bgs. Groundwater is expected to be
encountered at 10 feet bgs and RMC will install temporary 1-inch diameter wells that can be developed
and sampled.
Soil borings will be advanced using direct-push sampling techniques. Soil borings will be continuously
logged using the Unified Soil Classification System for unconsolidated materials. Soil samples will be
field screened for total volatile organic compounds (VOCs) using a MiniRae 2000 PID or equivalent (see
SOP #1 for details). Two soil samples will be collected from each borehole. One from the just above the
water table and one from either the highest PID readings or other indications of potential contamination
(e.g., odors or staining), as discussed in SOP #3 of the project QAPP (RMC, 2014a), or the bottom of the
borehole if no signs of contamination are evident. In addition to investigative soil samples, one field
duplicate and one matrix spike/matrix spike duplicate (MS/MSD) sample pair will be collected. All
drilling equipment used to advance soil borings will be steam-cleaned before use at each borehole. All
soil generated during direct push activities will be thin-spread in the vicinity of the borehole, if
acceptable to the property owner, or collected and disposed of in an acceptable location. If soil
contamination is suspected, the residual soils will be containerized and properly disposed.
Soil samples will be analyzed for VOCs by SW-846 Method 8260C and lead by SW-846 Method
6010C/7470A. Samples will be maintained under chain-of-custody protocol and submitted to Origins
Laboratory, Inc. (Origins) in Denver, Colorado, for analysis. When possible, samples will be delivered to
the laboratory on the same day as they are collected. Samples will be submitted to the laboratory no
later than the end of the following day. In addition to the field duplicate collected to determine
laboratory precision, the laboratory will also perform a surrogate spike analysis to determine accuracy. A
temperature blank will accompany each cooler submitted to the laboratory.
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Wheat Ridge, Colorado
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Table 2 Rationale for Proposed Soil Boring Locations
Soil Boring
Identification Primary Objective of Proposed Location
PBH-1
Proposed boring is located along the site perimeter in the southeast corner of the
subject property. This proposed location will evaluate potential up-gradient subsurface
conditions. This location is closest to the historical the auto repair facility / auto parts
store and possible dry cleaner hydraulically downgradient from these locations.
PBH-2
Proposed boring is located along the southwestern site perimeter. This proposed
location is anticipated to be in a cross-gradient to downgradient relative to the
historical auto repair facility / auto parts store and possible dry cleaner.
PBH-3
Proposed boring is centrally located along the northern perimeter of the 5725 West
38th Avenue backyard. This proposed location is further downgradient relative to the
other borings and subject property buildings where auto repair may have taken place.
PBH-4
Proposed boring is located along the site perimeter in the northeast corner of the
subject property. This proposed location is further downgradient relative to the other
borings and open areas of the subject property where the wrecked vehicles may have
been stored prior to repair.
@A@A
@A
@A
PBH-4
PBH-3
PBH-2 PBH-1
G :\w o r k d i r s \W h e a t R i d g e \m x d \W h e a t R i d g e \5 7 2 5 W 3 8 t h P I I F i g u r e 3 .m x d 1 /7 /2 0 1 6 1 2 :4 0 :5 0 P M j k a h l e r t
FIGURE 35725 WEST 38TH AVENUECITY OF WHEAT RIDGEBROWNFIELDS ENVIRONMENTAL SERVICES
Proposed Borehole/Well Location Map
Data Sources: City of Wheat Ridge, RMC Consultants, Inc., Esri, DigitalGlobe,GeoEye, i-cubed, USDA, & USGS.
West 38th Avenue
E a t o n S t r e e t
Legend
@A Proposed Borehole/Well
Inferred Groundwater Flow Direction
Site Boundary
0 25 50
Feet
£
1:600
Final FSP for a Phase II ESA
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Wheat Ridge, Colorado
18
4.3 Temporary Monitoring Well Installation
If groundwater is encountered in the soil borings, a temporary monitoring well will be installed in each
boring where groundwater is present. Each temporary monitoring well will be constructed using one-
inch diameter ten feet long Schedule 40 slotted (0.010-inch slot size) wells screen and flush-threaded
PVC blank riser. Monitoring wells will be constructed with a sandpack consisting of clean 10-20 mesh
size silica sand placed around each well screen to approximately 1 foot above the water table. Once
installed, the relative elevation of the top of the PVC well casing will be surveyed and measured relative
to an arbitrary site benchmark of 100 feet.
Temporary monitoring wells will not require formal development. Following well construction, temporary
wells will be purged with a disposable bailer and/or peristaltic pump to remove fine-grained material. The
well will be pumped until the water is relatively clear (if possible) or a decrease in turbidity is observed. The
rig geologist will determine when the well has been adequately developed. All purge water from the wells
will be placed into an appropriate container and handled as investigation derived waste (IDW) in
accordance with SOP #10, IDW Management.
The temporary monitoring wells will be installed, sampled, and abandoned in one or two days;
monitoring wells will be secured overnight as necessary.
4.4 Groundwater Sampling
Prior to the start of purging, the depth of static water level will be measured to the nearest 0.01 foot.
Before any purging or sampling begins, all well probes, bailers, and other sampling devices will be
decontaminated according to the procedures in SOP #9.
The temporary monitoring wells will be purged until a minimum of either three well casing volumes
have been removed or field water quality parameters have stabilized to within 10 percent or 0.1 units,
or until the well is pumped or bailed dry and allowed to recover. The following water quality
parameters will be measured and recorded during well purging: pH, specific conductance, oxidation
reduction potential, dissolved oxygen, temperature, and turbidity. All wells will be purged on the same
day that samples are collected.
A groundwater sample will be collected from each of the temporary monitoring wells and analyzed for
VOCs by SW-846 Method 8260C. In addition to investigative groundwater samples, one field duplicate
and one MS/MSD sample pair will be collected. Groundwater sampling will be completed using a
peristaltic pump with new tubing and/or a disposable bailer in accordance to sampling methods
specified in SOP #8. Samples will be maintained under chain-of-custody protocol and submitted to
Origins in Denver, Colorado, for analysis. When possible, samples will be delivered to the laboratory on
the same day as they are collected. Samples will be submitted to the laboratory no later than the end of
the following day.
4.5 Soil Gas Sampling
During advancement of the boreholes, the direct-push rod is driven down to total depth (using a
retractable or removable drive tip) for soil vapor sample collection purposes, then withdrawn several
inches to expose the target sample depth of the borehole. Prior to sampling, soil gases will be evacuated
from the subsurface of each borehole to ensure that ambient or stagnant air is removed from the
sampling system and samples collected are representative of subsurface conditions. Purging equipment
Final FSP for a Phase II ESA
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will consist of an electric powered vacuum pump or peristaltic pump. All equipment, including
associated valves and fittings, will be checked for leaks before purging the sampling system. Purging will
be performed until two to three purge volumes have been evacuated the drill rods and borehole
(determined by the length of the rods at each sampling location). Flow rates for purging (as well as
sampling) will generally not exceed 0.2 Liters per minute (L/min) in accordance with protocol provided in
the Petroleum Hydrocarbon Vapor Intrusion Guidance Document (OPS, 2007).
One soil gas sample will be collected from each of the probe holes at a depth targeting a permeable
zone above the water table, if present, expected to be somewhere between 6 and 10 feet bgs. In
addition to investigative soil gas samples, one field duplicate and one ambient blank will be collected.
Soil-gas samples will be collected in 6-Liter Summa® canisters supplied and individually certified cleaned
and evacuated by ALS Environmental (ALS) of Simi Valley, California, prior to sampling. Since the vacuum
inside the canister drives sampling, no additional equipment is necessary other than a flow controller.
The driller will provide a screw-on cap, with a built in sample port, that attaches onto the top of the drill
rod to prevent ambient air from diluting the soil gas samples. The summa canisters will be fitted with an
air-tight valve and connected to the vapor sampling tubing (1/4 inch diameter), that extends from the
probe tip to the sample port located on the drill rod at ground surface, then opened and allowed to fill.
Both the initial and final field vacuum readings will be recorded prior to and upon the completion of
sample collection.
Vapor samples will be analyzed for VOCs by EPA Method TO-15. Sample turn-around times are expected
to be ten days. In addition to investigative vapor samples, one field duplicate sample will be collected.
Samples will be maintained under chain-of-custody protocol and submitted to ALS for analysis. Samples
will be shipped to the laboratory no later than the end of the next day following sample collection. Table
3 summarizes the anticipated samples to be collected for each media type as part of the environmental
assessment.
Table 3 Anticipated Assessment Samples
Media to be
Sampled
Anticipated
Number of Samples Comment
Soil 9
Two soil samples will be collected from each of the four borings. A
sample will obtained from just above the water table. The second
will be collected from the interval exhibiting the greatest
contamination potential or, if no evidence of contamination is
present, from the top of the boring (e.g., 0-6” or 6-12” bgs). A
duplicate, matrix spike, and matrix spike duplicate sample will also
be collected
Groundwater 6 One sample will be collected from each temporary well, plus one
duplicate, matrix spike, and matrix spike duplicate.
Soil Gas 5 One sample will be collected from each boring, plus one duplicate
and one ambient blank.
Final FSP for a Phase II ESA
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4.6 Asbestos Survey
An asbestos survey will be conducted at the structures located at 5725 West 38th Avenue to identify
areas that may have asbestos containing materials (ACMs). The extent and condition of friable versus
non-friable ACMs and the potential for disturbance will also be assessed. Foothills Environmental, Inc.
(Foothills) will be subcontracted to perform the asbestos assessment portion of the project. Foothills’
efforts will be led by Lyle Ardourel. Mr. Ardourel holds the required Colorado certification for asbestos
assessment. RMC will oversee and manage the asbestos survey efforts.
Prior to beginning sample collection, building plans will be reviewed. Personnel conducting the survey
and sampling will have the necessary ACM certifications. The sampling team will have a kit containing
all necessary equipment. The following items will be included in each sampling kit:
Plastic squeeze bottle containing water and a wetting agent
Plastic bags for sample collection
Tweezers, core bores, and knives as aids for taking a sample
Container labels for identifying samples
Sample log, assessment, survey data, and chain-of-custody forms
Logbook
Tape measure, clipboard, and pens
Calculator
Paper towels and/or wet wipes for wiping sampling tools clean
Duct tape
Marker with indelible ink
Disposable nitrile gloves for hand protection
Plastic bags for disposal of excess debris and used protective equipment
Protective eyewear for overhead sampling
Tyvek coveralls
Disposable drop cloth
Half-face, air-purifying respirator with high-efficiency particulate air (HEPA) filter cartridge
Ladder for sampling out-of-reach areas
Flashlights
Building keys
Camera for photographing suspect areas
4.6.1 ACM Sampling Procedures and Methodology
Federal regulations pertaining to asbestos are included under NESHAP Subpart M, and the Asbestos
Hazard Emergency Response Act of 1986 (AHERA). Regulation of asbestos exposure in the occupational
environment is the responsibility of the Occupational Safety and Health Administration (OSHA). State
regulations pertaining to asbestos are included under Colorado Regulation No. 8.
Final FSP for a Phase II ESA
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Before sample collection begins, the history of the buildings will be researched using available
documents and records. The ACM inspector will conduct a physical and visual inspection for suspect
ACM on the property, which includes collecting bulk samples of surfacing, thermal system insulation,
and miscellaneous materials, in accordance with AHERA sampling protocol (EPA, 1987. Asbestos-
Containing Materials in Schools; Final Rule and Notice, Part 763 of Title 40 of the Code of Federal
Regulations, October 30).
For each sampling area, a diagram will be prepared that shows all suspect ACM in the sampling area and
include building number, description of the sampling area, and location sampled, sample identification
numbers, name of the inspector, and date of the inspection, sample collection, and diagram
preparation. Sample locations will be marked with the sample identification number, and the location
will be photographed. Random locations will be sampled for each homogeneous area. The quantity of
samples collected from each homogeneous area will depend on the size of the area and the type of ACM
(surfacing materials, thermal system insulation, or miscellaneous materials). AHERA guidelines will be
used to calculate the number of ACM samples to be collected.
ACM sample locations will be chosen by the inspectors, and will include locations and quantities that are
compliant with NESHAP characterization criteria to the extent possible since the premises is occupied.
The sample locations will be in discrete locations, whenever possible, in an effort to minimize the
disturbance to the current tenants, which does limit the definition of a randomly selected sample
location. The following sampling procedures will be followed:
Personal protective equipment, including gloves, safety glasses, etc., will be donned prior to
sample collection.
Sample containers will be labeled with unique identification numbers, and sample locations and
material type will be documented in the logbook.
Sampling techniques will be designed to minimize the release of asbestos fibers into the air.
Prior to sampling, the location will be wetted.
Samples will be extracted using a decontaminated knife, chisel, or coring tool used to cut out or
scrape off approximately one cubic inch of the material. When layers are present in the building
material, all layers will be penetrated and incorporated into each specific sample to the extent
possible.
Each sample will be placed in a re-sealable plastic bag, which will be then tightly sealed.
Quality Assurance/Quality Control (QA/QC) samples will be collected alongside primary samples
at the rate of one QA/QC sample per 20 primary samples. The sample numbers and chain-of-
custody forms will not identify the duplicate samples, so that the laboratory’s objectivity will not
be compromised.
Samples will be submitted to the laboratory within two days of collection.
During field sampling activities, traceability of the samples must be maintained from the time
the samples are collected until laboratory data are issued. Initial information concerning
collection of the samples will be recorded in the field logbook. Information on the custody,
transfer, handling, and shipping of samples will be recorded on a chain-of-custody form.
Sampling tools will be decontaminated with wet wipes, and loose material generated during
sampling will be wet-wiped to remove all debris.
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After sampling, the friable area will be encapsulated using tape, caulking, or acrylic/adhesive.
Protective clothing, wet wipes, rags, and drop cloths will be placed in a labeled plastic waste bag
for disposal.
Primary and QA/QC sample bags will be placed in a large, labeled, re-sealable plastic bag for
transport to Aerobiology Laboratory Associates, Inc. of Denver, Colorado, a National Voluntary
Laboratory Accreditation Program laboratory using chain-of-custody protocols for Bulk Asbestos
Analysis by Polarized Light Microscopy, EPA Method 600/R-93/116.
The asbestos survey, sampling, and analysis program is designed to provide data to assess the factors
influencing asbestos fiber release, and, based on this data, the potential for personal exposure to
asbestos, and the need, if any, for abatement. The assessment will focus on materials containing more
than one percent asbestos by weight. The actual number of samples collected will be based on the type
and quantity of building materials observed during the inspection and will be limited because of tenant
occupancy. Information that will be evaluated includes factors related to current conditions of the ACM;
percent asbestos content; and number of usual occupants and duration of occupancy. An exposure
analysis will consider all factors compiled during the survey and relate them to the potential for human
exposure to ACM. The exposure analysis will result in recommended actions.
4.7 IDW Management
The primary IDW will consist of a small amount of discarded soil cuttings left over from direct-push
activities. After logging each borehole and collecting the necessary soil samples for analysis, the
remaining soil will be thin-spread in the vicinity of the borehole, if acceptable to the property owner, or
collected and disposed of in an acceptable location. Soil exhibiting potential impacts will be
containerized and sealed in a drum or 5-gallon bucket and labeled. If containerized, disposal
determination will be made upon receipt of analytical results. Miscellaneous disposable PPE, disposable
sampling equipment, tubing, and acetate liners used during direct-push sample collection will be
collected in plastic bags for disposal as municipal waste at an approved landfill. Decontamination water
associated with direct push and sampling activities will be containerized in a 55-gallon drum or 5-gallon
bucket. The final characterization and disposition of the containerized decontamination water will be
based on sample analytical results.
All drums used for containerizing IDW will be U.S. Department of Transportation- and EPA-approved for
transport of hazardous materials. The drums will be sealed, labeled, and recorded so that the contents
can be identified as to material and source. The drums will be labeled in accordance with Title 6 of the
Code of Colorado Regulations Part 1007-3 (6 CCR 1007-3), Section 261. At a minimum, drums will be
labeled as to type of material contained, site number and location, point of contact, telephone number,
and date. Labeling will be made with a permanent marker and positioned so that it can be easily viewed
when the drums are staged. The drums containing IDW will be temporarily stored in a staging area at
the site.
Miscellaneous disposable personal protective equipment (PPE) and disposable sampling equipment will
be collected in plastic bags for disposal as municipal waste at an approved landfill.
4.8 Data Management
Field notes will be reviewed internally and placed in the project file. A copy of the field notes will be
included with the final report.
Final FSP for a Phase II ESA
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23
Origins and ALS will verify all data are complete for samples received. Data will be verified by the Project
Chemist. Origins and ALS will provide the analytical data as a hard copy report including a complete raw
data package and as a Staged Electronic Data Deliverable.
RMC archives all electronic analytical data deliverables by project number on the company’s internal
storage server; RMC servers are amended nightly and fully backed up weekly to ensure data
preservation. RMC will archive the data until it is turned over to the City of Wheat Ridge Project
Manager at project completion.
4.9 Additional Field Activities
In addition to the drilling and sample collection activities described in this document, other field
activities will also be performed in accordance with protocol specified in the SOPs included in the UFP-
QAPP (RMC, 2014a). Such activities may consist of equipment decontamination, field documentation,
and sample handling, tracking, and custody, as outlined in the UFP-QAPP (RMC, 2014a). RMC and the
drilling contractor will attempt to locate, uncover, and check the status of the domestic well identified in
the Phase I ESA using standard hand tools or drilling equipment already on hand for the soil and
groundwater collection activities. If the domestic well is open, a water level measurement will be taken
and the top of casing surveyed when the temporary wells are surveyed. The domestic well will be sealed
with the existing well materials (e.g., well cap), if possible, after the well casing has been surveyed. No
repairs will be made to the domestic well during these Phase II activities.
5 Reporting and Schedule
A Draft Phase II ESA Report will be prepared as a consolidation of all the findings and work done during
the project and a summary of the QA/QC elements presented in the UFP-QAPP (RMC, 2014a) and
distributed for comment. The analytes detected in the soil will be compared to the EPA Regional
Screening Levels for residential and industrial soils (provided in Appendix A). The groundwater samples
will be compared to EPA drinking water maximum contaminant limits (provided in Appendix A). Soil gas
concentrations will be compared to the generic soil gas screening levels provided in Table 2 of the Office
of Solid Waste and Emergency Response (OSWER) Draft Guidance for Evaluating the Vapor Intrusion to
Indoor Air Pathway from Groundwater and Soils (Subsurface Vapor Intrusion Guidance) (EPA, 2002)
which is provided in Appendix A. The target concentrations in Table 2 are screening levels and are not
intended to be used as clean-up levels, nor are they intended to supersede existing criteria of the lead
regulatory authority. Following the receipt of all comments, a written response-to-comments will be
issued for concurrence regarding any proposed modifications to the Draft Report. A Final Phase II ESA
Report containing the modifications will then be prepared. One electronic copy on of the Final Report
will be provided to the Lead Organization’s Project Manager, Steve Art with City of Wheat Ridge, for
distribution to stakeholders (EPA Region 8).
Additional deliverables for this project may also include site-specific clean-up options, if warranted, and
development of a VCP.
Currently, the drilling and soil/groundwater/vapor/asbestos sampling portion of the Phase II ESA is
proposed to occur in late January 2016. Preliminary data will be delivered electronically, e.g. by email, to
the owner as soon as it is available. The Draft Phase II report will be submitted within three weeks of
completion of all field work. The Final Phase II report, if necessary, will be submitted within two weeks
of receiving comments back on the draft report.
Final FSP for a Phase II ESA
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24
6 References
EPA, 2002. OSWER Draft Guidance for Evaluating the Vapor Intrusion to Indoor Air Pathway from
Groundwater and Soils (Subsurface Vapor Intrusion Guidance). EPA 530-D-02-004, November.
OPS, 2007. Petroleum Hydrocarbon Vapor Intrusion Guidance Document, Colorado Department of
Labor and Employment, Division of Oil and Public Safety, December 11.
RMC, 2015. Draft Phase I Environmental Site Assessment for 5725 West 38th Avenue, Wheat Ridge,
Colorado, RMC Consultants, Inc., December 7.
RMC, 2014a. Final Brownfields Environmental Consultant/Testing Services Uniform Federal Policy-
Quality Assurance Project Plan, Wheat Ridge, Colorado, RMC Consultants, Inc., January.
RMC, 2014b. Site Safety and Health Plan, Phase II Site Investigation, Brownfields Environmental
Services, City of Wheat Ridge, Colorado, RMC Consultants, Inc., January.
Final FSP for a Phase II ESA
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25
APPENDIX A
Updated UFP-QAPP Worksheet #2
Updated UFP-QAPP Worksheet #5
Updated UFP-QAPP Worksheet #7
Updated UFP-QAPP Worksheet #8
Method 8260C and TO-15 Detection Limits
Contaminants of Primary Concern
EPA Regional Screening Levels, November 2015
EPA Generic Soil Gas Screening Levels
FSP for a Phase II ESA
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Wheat Ridge, Colorado
Worksheet #2 QAPP Identifying Information
Required QAPP Element(s) and
Corresponding QAPP Section(s) Required Information Crosswalk to Related
Documents
Project Management and Objectives
2.1 Title and Approval Page – Title and Approval Page Worksheet #1
2.2 Document Format and Table of Contents
2.2.1 Document Control Format
2.2.2 Document Control Numbering System
2.2.3 Table of Contents
2.2.4 QAPP Identifying Information
– Table of Contents
– QAPP Identifying Information
Worksheet #2
2.3 Distribution List and Project Personnel
Sign-Off Sheet
2.3.1 Distribution List
2.3.2 Project Personnel Sign-Off Sheet
– Distribution List
– Project Personnel Sign–Off
Sheet
Worksheet #3
Worksheet #4
2.4 Project Organization
2.4.1 Project Organizational Chart
2.4.2 Communication Pathways
2.4.3 Personnel Responsibilities and
Qualifications
2.4.4 Special Training Requirements and
Certification
– Project Organizational Chart
– Communication Pathways
– Personnel Responsibilities and
Qualifications Table
– Special Personnel Training
Requirements Table
Worksheet #5
Worksheet #6
Worksheet #7
Worksheet #8
2.5 Project Planning/Problem Definition
2.5.1 Project Planning (Scoping)
2.5.2 Problem Definition, Site History, and
Background
– Project Planning Session
Documentation (including Data
Needs tables)
– Project Scoping Session
Participants Sheet
– Problem Definition, Site History,
and Background
– Site Maps (historical and present)
Worksheet #9
Worksheet #10
FSP: Section 2, Site
Background and History
2.6 Project Quality Objectives and Measurement
Performance Criteria
2.6.1 Development of Project Quality
Objectives Using the Systematic
Planning Process
2.6.2 Measurement Performance Criteria
– Site–Specific PQOs
– Measurement Performance Criteria
Table
Worksheet #11
Worksheet #12
FSP for a Phase II ESA
5725 West 38th Avenue
Wheat Ridge, Colorado
Required QAPP Element(s) and
Corresponding QAPP Section(s) Required Information Crosswalk to Related
Documents
2.7 Secondary Data Evaluation Sources of Secondary Data and
Information
– Secondary Data Criteria and
Limitations Table
Worksheet #13
FSP: Section 2.4,
Previous Investigations
2.8 Project Overview and Schedule
2.8.1 Project Overview
2.8.2 Project Schedule
Summary of Project Tasks
– Reference Limits and Evaluation
Table
– Project Schedule/Timeline Table
Worksheet #14
Worksheet #15
Worksheet #16
FSP: Section 5
Measurement/Data Acquisition
3.1 Sampling Tasks
3.1.1 Sampling Process Design and
Rationale
3.1.2 Sampling Procedures and
Requirements
3.1.2.1 Sampling Collection Procedures
3.1.2.2 Sample Containers, Volume, and
Preservation
3.1.2.3 Equipment/Sample Containers
Cleaning and Decontamination
Procedures
3.1.2.4 Field Equipment Calibration,
Maintenance, Testing, and
Inspection Procedures
3.1.2.5 Supply Inspection and
Acceptance Procedures
3.1.2.6 Field Documentation Procedures
Sampling Design and
Rationale
– Sample Location Map
– Sampling Locations and
Methods/SOP Requirements
Table
– Analytical Methods/SOP
Requirements Table
– Field Quality Control Sample
Summary Table
– Sampling SOPs
– Project Sampling SOP,
References, Table
Field Equipment Calibration,
Maintenance, Testing, and
Inspection Table
Worksheet #17
FSP: Section 4
Worksheet #18
Worksheet #19
Worksheet #20
Worksheet #21
Worksheet #22
3.2 Analytical Tasks
3.2.1 Analytical SOPs
3.2.2 Analytical Instrument Calibration
Procedures
3.2.3 Analytical Instrument and Equipment
Maintenance, Testing, and Inspection
Procedures
3.2.4 Analytical Supply Inspection and
Acceptance Procedures
Analytical SOPs
– Analytical SOP References Table
– Analytical Instrument Calibration
Table
– Analytical Instrument and
Equipment Maintenance, Testing,
and Inspection Table
Worksheet #23
Worksheet #24
Worksheet #25
FSP for a Phase II ESA
5725 West 38th Avenue
Wheat Ridge, Colorado
Required QAPP Element(s) and
Corresponding QAPP Section(s) Required Information Crosswalk to Related
Documents
3.3 Sample Collection Documentation, Handling,
Tracking, and Custody Procedures
3.3.1 Sample Collection Documentation
3.3.2 Sample Handling and Tracking
System
3.3.3 Sample Custody
– Sample Collection Documentation
Handling, Tracking, and Custody
SOPs
– Sample Container Identification
– Sample Handling Flow Diagram
– Example Chain-of-Custody Form
and Seal
Worksheet #26
Worksheet #27
3.4 Quality Control Samples
3.4.1 Sampling Quality Control Samples
3.4.2 Analytical Quality Control Samples
– QC Samples Table
– Screening/Confirmatory Analysis
Decision Tree
Worksheet #28
3.5 Data Management Tasks
3.5.1 Project Documentation and Records
3.5.2 Data Package Deliverables
3.5.3 Data Reporting Formats
3.5.4 Data Handling and Management
3.5.5 Data Tracking and Control
– Project Documents and Records
Table
– Analytical Services Table
– Data Management SOPs
Worksheet #29
FSP: Section 4.8 and 5
Worksheet #30
Assessment/Oversight
4.1 Assessments and Response Actions
4.1.1 Planned Assessments
4.1.2 Assessment Findings and Corrective
Action Responses
– Assessments and Response
Actions
– Planned Project Assessments
Table
– Audit Checklists
– Assessment Findings and
Corrective Action Responses Table
Worksheet #31
Worksheet #32
4.2 QA Management Reports – QA Management Reports Table Worksheet #33
4.3 Final Project Report – Reporting FSP: Section 5
FSP for a Phase II ESA
5725 West 38th Avenue
Wheat Ridge, Colorado
Required QAPP Element(s) and
Corresponding QAPP Section(s) Required Information Crosswalk to Related
Documents
Data Review
5.1 Overview
5.2 Data Review Steps
5.2.1 Step I: Verification
5.2.2 Step II: Validation
5.2.2.1 Step IIa Validation Activities
5.2.2.2 Step IIb Validation Activities
5.2.3 Step III: Usability Assessment
5.2.3.1 Data Limitations and Actions from
Usability Assessment
5.2.3.2 Activities
– Verification (Step I) Process Table
– Validation (Steps IIa and IIb)
Process Table
– Validation (Steps IIa and IIb)
Summary Table
– Usability Assessment
Worksheet #34
Worksheet #35
Worksheet #36
Worksheet #37
5.3 Streamlining Data Review
5.3.1 Data Review Steps to be Streamlined
5.3.2 Criteria for Streamlining Data Review
5.3.3 Amounts and Types of Data
Appropriate for Streamlining
NA NA
FSP for a Phase II ESA
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Wheat Ridge, Colorado
Worksheet #5 Project Organizational Chart
FSP for a Phase II ESA
5725 West 38th Avenue
Wheat Ridge, Colorado
Worksheet #7 Personnel Responsibilities and Qualifications
Name Title Organizational
Affiliation Responsibilities Education and Experience
Qualifications
Steve Art Project Manager City of Wheat Ridge Oversees project and responds to
regulatory agency
American Institute of Certified Planners
(AICP) certification
David Groy Project Manger RMC Manages environmental tasks -
coordinates with Lead Agency
Master of Science, Environmental Policy
and Management, 30 yrs. exp.
Jennifer Hussey Sampling Team Leader RMC
Leads the field sampling effort as
necessary and provides Quality
Assurance/Quality Control oversight
Bachelor of Science/Master of Arts,
Geology, 16 yrs. exp.
Jason Kahlert Project Health and Safety
Officer RMC
Reviews Health and Safety protocols
and practices, responsible for ensuring
OSHA-required H & S training and State-
required asbestos and LBP certification
obtained for applicable site personnel
Bachelor of Science, Geology, 19 yrs.
exp.
Joseph Mastromarchi Project QA Manager RMC
Maintains the official, approved QAPP,
reviews data and QA/QC procedures,
and verifies that corrective action is
taken when necessary. The Project QA
Manager position is independent of the
unit generating data.
Bachelor of Science, Geology, 24 yrs.
exp.
Claude Murray Field Operations Manager RMC
Coordinates all field activities and
provides Quality Assurance/Quality
Control oversight. Provides health and
safety oversight, acts as backup Site
Safety and Health Officer
Bachelor of Science, Geology, 30 yrs.
exp.
Noelle Doyle Mathis Laboratory Project
Manager Origins Laboratory, Inc. Manages laboratory project
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Worksheet #7 Personnel Responsibilities and Qualifications (continued)
Name Title Organizational
Affiliation Responsibilities Education and Experience
Qualifications
Lyle Ardourel Program Manager Foothills Environmental,
Inc.
Leads the field sampling effort as
necessary
25 years of construction safety, industrial
hygiene, and environmental remediation
experience
FSP for a Phase II ESA
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Wheat Ridge, Colorado
Worksheet #8 Special Personnel Training Requirements
Project
Function
Specialized Training –
Title or Description of
Course
Training
Provider
Training
Date
Personnel/Groups
Receiving
Training
Personnel Titles/
Organizational
Affiliation
Location of Training
Records/Certificates
Site Worker
OSHA 40-hour
HAZWOPER with annual
refresher training
Qualified
individual or
institute
To be
completed
prior to field
event
All site workers
Sampling Team
Member
RMC
Site worker's employer
Site Worker First Aid/CPR
Qualified
individual or
institute
To be
completed
prior to field
event
All site workers
Sampling Team
Member
RMC
Site worker's employer
Site
Supervisor
OSHA 8-hour
HAZWOPER Supervisor
Qualified
individual or
institute
To be
completed
prior to field
event
Sampling Team
Leader/SSHO
Sampling Team Leader
RMC Supervisor's employer
Building
Inspector
CDPHE Asbestos or LBP
Certification
Qualified
individual or
institute
To be
completed
prior to field
event
Asbestos or LPB
Building Inspector
Asbestos or LBP
Building Inspector
RMC
Inspector’s employer
Matrix: SOIL Analytical Group/Method: VOCs, SW-846 8260C
Units: µg/kg
Analyte CAS Number Method Detection Limit Reporting Limit
1,1,1,2-Tetrachloroethane 630-20-6 0.4 4.0
1,2,4-Trichlorobenzene 120-82-1 0.4 4.0
1,2,4-Trimethylbenzene 95-63-6 0.2 4.0
1,2-Dibromo-3-chloropropane 96-12-8 1.9 20.0
1,2-Dibromoethane (EDB) 106-93-4 0.6 4.0
1,2-Dichlorobenzene 95-50-1 0.3 4.0
1,2-Dichloroethane 107-06-2 0.3 4.0
1,2-Dichloropropane 78-87-5 0.2 4.0
1,3,5-Trimethylbenzene 108-67-8 0.2 4.0
1,3-Dichlorobenzene 541-73-1 0.3 4.0
1,3-Dichloropropane 142-28-9 0.4 4.0
1,1,1-Trichloroethane 71-55-6 0.2 4.0
1,4-Dichlorobenzene 106-46-7 0.3 4.0
2,2-Dichloropropane 590-20-7 0.6 4.0
2-Butanone 78-93-3 8.0 20.0
2-Chlorotoluene 95-49-8 0.1 4.0
2-Hexanone 591-78-6 1.3 20.0
4-Chlorotoluene 106-43-4 0.2 4.0
4-Isopropyltoluene 99-87-6 0.2 4.0
4-Methyl-2-pentanone 108-10-1 1.4 20.0
Acetone 67-64-1 15.1 32.0
Benzene 71-43-2 0.2 4.0
1,1,2,2-Tetrachloroethane 79-34-5 0.3 4.0
Bromobenzene 108-86-1 0.3 4.0
Bromochloromethane 74-97-5 0.5 4.0
Bromodichloromethane 75-27-4 0.3 4.0
Bromoform 75-25-2 0.5 4.0
Bromomethane 74-83-9 0.3 4.0
Carbon disulfide 75-15-0 0.6 10.0
Carbon tetrachloride 56-23-5 0.2 4.0
Chlorobenzene 108-90-7 0.2 4.0
Chloroethane 75-00-3 0.4 4.0
Chloroform 67-66-3 0.3 4.0
1,1,2-Trichloroethane 79-00-5 0.5 4.0
Chloromethane 74-87-3 0.5 4.0
cis-1,2-Dichloroethene 156-59-2 0.3 4.0
cis-1,3-Dichloropropene 10061-01-5 0.3 4.0
Dibromochloromethane 124-48-1 0.2 4.0
Dibromomethane 74-95-3 0.6 4.0
Ethylbenzene 100-41-4 0.3 4.0
Hexachlorobutadiene 87-68-3 0.5 5.0
Iodomethane 74-88-4 0.7 10.0
Isopropylbenzene 98-82-8 0.2 4.0
m,p-Xylene 108-38-3/106-42-3 0.6 4.0
1,1-Dichloroethane 75-34-3 0.3 4.0
Methyl tert-Butyl Ether 1634-04-4 0.3 4.0
Methylene Chloride 75-09-2 1.0 20.0
Matrix: SOIL Analytical Group/Method: VOCs, SW-846 8260C
Units: µg/kg
Analyte CAS Number Method Detection Limit Reporting Limit
Naphthalene 91-20-3 0.7 20.0
n-Butylbenzene 104-51-8 0.3 4.0
n-Propylbenzene 103-65-1 0.1 4.0
o-Xylene 95-47-6 0.3 4.0
sec-Butylbenzene 135-98-8 0.2 4.0
Styrene 100-42-5 0.3 4.0
tert-Butylbenzene 98-06-6 0.2 4.0
Tetrachloroethene 127-18-4 0.3 4.0
1,1-Dichloroethene 75-35-4 0.2 4.0
Toluene 108-88-3 0.4 4.0
trans-1,2-Dichloroethene 156-60-5 0.7 4.0
trans-1,3-Dichloropropene 10061-02-6 0.3 4.0
Trichloroethene 79-01-6 0.2 4.0
Trichlorofluoromethane 75-69-4 0.3 4.0
Vinyl chloride 75-01-4 0.3 4.0
1,2-Dichloroethane-d4 17060-07-0 Not applicable Not applicable
Toluene-d8 2037-26-5 Not applicable Not applicable
4-Bromofluorobenzene 460-00-4 Not applicable Not applicable
1,1-Dichloropropene 563-58-6 0.3 4.0
Fluorobenzene 462-06-6 Not applicable Not applicable
Chlorobenzene-d5 3114-55-4 Not applicable Not applicable
1,4-Dichlorobenzene-d4 3855-82-1 Not applicable Not applicable
1,2,3-Trichlorobenzene 87-61-6 0.9 10.0
1,2,3-Trichloropropane 96-18-4 0.6 10.0
1,1,1,2-Tetrachloroethane 630-20-6 0.4 4.0
1,2,4-Trichlorobenzene 120-82-1 0.4 4.0
1,2,4-Trimethylbenzene 95-63-6 0.2 4.0
1,2-Dibromo-3-chloropropane 96-12-8 1.9 20.0
1,2-Dibromoethane (EDB) 106-93-4 0.6 4.0
1,2-Dichlorobenzene 95-50-1 0.3 4.0
1,2-Dichloroethane 107-06-2 0.3 4.0
1,2-Dichloropropane 78-87-5 0.2 4.0
1,3,5-Trimethylbenzene 108-67-8 0.2 4.0
1,3-Dichlorobenzene 541-73-1 0.3 4.0
1,3-Dichloropropane 142-28-9 0.4 4.0
1,1,1-Trichloroethane 71-55-6 0.2 4.0
1,4-Dichlorobenzene 106-46-7 0.3 4.0
2,2-Dichloropropane 590-20-7 0.6 4.0
2-Butanone 78-93-3 8.0 20.0
2-Chlorotoluene 95-49-8 0.1 4.0
2-Hexanone 591-78-6 1.3 20.0
4-Chlorotoluene 106-43-4 0.2 4.0
4-Isopropyltoluene 99-87-6 0.2 4.0
4-Methyl-2-pentanone 108-10-1 1.4 20.0
Acetone 67-64-1 15.1 32.0
Benzene 71-43-2 0.2 4.0
1,1,2,2-Tetrachloroethane 79-34-5 0.3 4.0
Matrix: SOIL Analytical Group/Method: VOCs, SW-846 8260C
Units: µg/kg
Analyte CAS Number Method Detection Limit Reporting Limit
Bromobenzene 108-86-1 0.3 4.0
Bromochloromethane 74-97-5 0.5 4.0
Bromodichloromethane 75-27-4 0.3 4.0
Bromoform 75-25-2 0.5 4.0
Bromomethane 74-83-9 0.3 4.0
Carbon disulfide 75-15-0 0.6 10.0
Carbon tetrachloride 56-23-5 0.2 4.0
Chlorobenzene 108-90-7 0.2 4.0
Chloroethane 75-00-3 0.4 4.0
Chloroform 67-66-3 0.3 4.0
1,1,2-Trichloroethane 79-00-5 0.5 4.0
Chloromethane 74-87-3 0.5 4.0
cis-1,2-Dichloroethene 156-59-2 0.3 4.0
cis-1,3-Dichloropropene 10061-01-5 0.3 4.0
Dibromochloromethane 124-48-1 0.2 4.0
Dibromomethane 74-95-3 0.6 4.0
Ethylbenzene 100-41-4 0.3 4.0
Hexachlorobutadiene 87-68-3 0.5 5.0
Iodomethane 74-88-4 0.7 10.0
Isopropylbenzene 98-82-8 0.2 4.0
m,p-Xylene 108-38-3/106-42-3 0.6 4.0
1,1-Dichloroethane 75-34-3 0.3 4.0
Methyl tert-Butyl Ether 1634-04-4 0.3 4.0
Methylene Chloride 75-09-2 1.0 20.0
Naphthalene 91-20-3 0.7 20.0
n-Butylbenzene 104-51-8 0.3 4.0
n-Propylbenzene 103-65-1 0.1 4.0
o-Xylene 95-47-6 0.3 4.0
sec-Butylbenzene 135-98-8 0.2 4.0
Styrene 100-42-5 0.3 4.0
tert-Butylbenzene 98-06-6 0.2 4.0
Tetrachloroethene 127-18-4 0.3 4.0
1,1-Dichloroethene 75-35-4 0.2 4.0
Toluene 108-88-3 0.4 4.0
trans-1,2-Dichloroethene 156-60-5 0.7 4.0
trans-1,3-Dichloropropene 10061-02-6 0.3 4.0
Trichloroethene 79-01-6 0.2 4.0
Trichlorofluoromethane 75-69-4 0.3 4.0
Vinyl chloride 75-01-4 0.3 4.0
1,2-Dichloroethane-d4 17060-07-0 Not applicable Not applicable
Toluene-d8 2037-26-5 Not applicable Not applicable
4-Bromofluorobenzene 460-00-4 Not applicable Not applicable
1,1-Dichloropropene 563-58-6 0.3 4.0
Fluorobenzene 462-06-6 Not applicable Not applicable
Chlorobenzene-d5 3114-55-4 Not applicable Not applicable
1,4-Dichlorobenzene-d4 3855-82-1 Not applicable Not applicable
1,2,3-Trichlorobenzene 87-61-6 0.9 10.0
Matrix: SOIL Analytical Group/Method: VOCs, SW-846 8260C
Units: µg/kg
Analyte CAS Number Method Detection Limit Reporting Limit
1,2,3-Trichloropropane 96-18-4 0.6 10.0
Matrix: Water Analytical Group/Method: VOCs, SW-846 8260C
Unit: µg/L
Analyte CAS Number Method
Detection Limit Reporting Limit
1,1,1,2-Tetrachloroethane 630-20-6 0.09 1.0
1,2,4-Trichlorobenzene 120-82-1 0.1 1.0
1,2,4-Trimethylbenzene 95-63-6 0.1 1.0
1,2-Dibromo-3-chloropropane 96-12-8 0.5 5.0
1,2-Dibromoethane (EDB) 106-93-4 0.1 1.0
1,2-Dichlorobenzene 95-50-1 0.07 1.0
1,2-Dichloroethane 107-06-2 0.7 1.0
1,2-Dichloropropane 78-87-5 0.06 1.0
1,3,5-Trimethylbenzene 108-67-8 0.04 1.0
1,3-Dichlorobenzene 541-73-1 0.07 1.0
1,3-Dichloropropane 142-28-9 0.09 1.0
1,1,1-Trichloroethane 71-55-6 0.04 1.0
1,4-Dichlorobenzene 106-46-7 0.08 1.0
2,2-Dichloropropane 590-20-7 0.1 1.0
2-Butanone 78-93-3 2.0 5.0
2-Chlorotoluene 95-49-8 0.02 1.0
2-Hexanone 591-78-6 0.03 5.0
4-Chlorotoluene 106-43-4 0.04 1.0
4-Isopropyltoluene 99-87-6 0.05 1.0
4-Methyl-2-pentanone 108-10-1 0.04 5.0
Acetone 67-64-1 3.8 8.0
Benzene 71-43-2 0.05 1.0
1,1,2,2-Tetrachloroethane 79-34-5 0.08 1.0
Bromobenzene 108-86-1 0.08 1.0
Bromochloromethane 74-97-5 0.1 1.0
Bromodichloromethane 75-27-4 0.08 1.0
Bromoform 75-25-2 0.1 1.0
Bromomethane 74-83-9 0.08 1.0
Carbon disulfide 75-15-0 0.2 2.0
Carbon tetrachloride 56-23-5 0.06 1.0
Chlorobenzene 108-90-7 0.04 1.0
Chloroethane 75-00-3 0.1 1.0
Chloroform 67-66-3 0.07 1.0
1,1,2-Trichloroethane 79-00-5 0.1 1.0
Chloromethane 74-87-3 0.1 1.0
cis-1,2-Dichloroethene 156-59-2 0.07 1.0
cis-1,3-Dichloropropene 10061-01-5 0.08 1.0
Dibromochloromethane 124-48-1 0.06 1.0
Dibromomethane 74-95-3 0.2 1.0
Ethylbenzene 100-41-4 0.07 1.0
Hexachlorobutadiene 87-68-3 0.1 1.5
Iodomethane 74-88-4 0.1 2.0
Isopropylbenzene 98-82-8 0.06 1.0
m,p-Xylene 108-38-3/106-42-3 0.1 2.0
1,1-Dichloroethane 75-34-3 0.1 1.0
Methylene Chloride 75-09-2 0.0 5.0
Methyl tert-Butyl Ether 1634-04-4 0.08 1.0
Naphthalene 91-20-3 0.2 10.0
Matrix: Water Analytical Group/Method: VOCs, SW-846 8260C
Unit: µg/L
Analyte CAS Number Method
Detection Limit Reporting Limit
n-Butylbenzene 104-51-8 0.06 1.0
n-Propylbenzene 103-65-1 0.09 1.0
o-Xylene 95-47-6 0.08 1.0
sec-Butylbenzene 135-98-8 0.04 1.0
Styrene 100-42-5 0.07 1.0
tert-Butylbenzene 98-06-6 0.05 1.0
Tetrachloroethene 127-18-4 0.06 1.0
1,1-Dichloroethene 75-35-4 0.07 1.0
Toluene 108-88-3 0.1 1.0
trans-1,2-Dichloroethene 156-60-5 0.04 1.0
trans-1,3-Dichloropropene 10061-02-6 0.09 1.0
Trichloroethene 79-01-6 0.05 1.0
Trichlorofluoromethane 75-69-4 0.07 1.0
Vinyl chloride 75-01-4 0.07 1.0
1,2-Dichloroethane-d4 17060-07-0 Not applicable Not applicable
Toluene-d8 2037-26-5 Not applicable Not applicable
4-Bromofluorobenzene 460-00-4 Not applicable Not applicable
1,1-Dichloropropene 563-58-6 0.05 1.0
Fluorobenzene 462-06-6 Not applicable Not applicable
Chlorobenzene-d5 3114-55-4 Not applicable Not applicable
1,4-Dichlorobenzene-d4 3855-82-1 Not applicable Not applicable
1,2,3-Trichlorobenzene 87-61-6 0.008 5.0
1,2,3-Trichloropropane 96-18-4 0.2 5.0
Matrix: Soil Gas Analytical Group/Method: TO-15 Scan
Unit: µg/m3
Analyte CAS Number Method
Detection Limit Reporting Limit
Propene 115-07-1 0.14 0.50
Dichlorodifluoromethane (CFC 12) 75-71-8 0.17 0.50
Chloromethane 74-87-3 0.15 0.50
1,2-Dichloro-1,1,2,2-
tetrafluoroethane (CFC 114) 76-14-2 0.19 0.50
Vinyl Chloride 75-01-4 0.17 0.50
1,3-Butadiene 106-99-0 0.22 0.50
Bromomethane 74-83-9 0.19 0.50
Chloroethane 75-00-3 0.17 0.50
Ethanol 64-17-5 0.80 5.0
Acetonitrile 75-05-8 0.18 0.50
Acrolein 107-02-8 0.17 2.0
Acetone 67-64-1 0.77 5.0
Trichlorofluoromethane (CFC 11) 75-69-4 0.17 0.50
2-Propanol (Isopropyl Alcohol) 67-63-0 0.42 5.0
Acrylonitrile 107-13-1 0.17 0.50
1,1-Dichloroethene 75-35-4 0.17 0.50
Methylene Chloride 75-09-2 0.17 0.50
3-Chloro-1-propene (Allyl Chloride) 107-05-1 0.16 0.50
Trichlorotrifluoroethane (CFC 113) 76-13-1 0.17 0.50
Carbon Disulfide 75-15-0 0.15 5.0
trans-1,2-Dichloroethene 156-60-5 0.19 0.50
1,1-Dichloroethane 75-34-3 0.16 0.50
Methyl tert-Butyl Ether 1634-04-4 0.17 0.50
Vinyl Acetate 108-05-4 0.65 5.0
2-Butanone (MEK) 78-93-3 0.21 5.0
cis-1,2-Dichloroethene 156-59-2 0.16 0.50
Ethyl Acetate 141-78-6 0.35 1.0
n-Hexane 110-54-3 0.15 0.50
Chloroform 67-66-3 0.17 0.50
Tetrahydrofuran (THF) 109-99-9 0.20 0.50
1,2-Dichloroethane 107-06-2 0.16 0.50
1,1,1-Trichloroethane 71-55-6 0.17 0.50
Benzene 71-43-2 0.16 0.50
Carbon Tetrachloride 56-23-5 0.15 0.50
Cyclohexane 110-82-7 0.29 1.0
1,2-Dichloropropane 78-87-5 0.16 0.50
Bromodichloromethane 75-27-4 0.15 0.50
Trichloroethene 79-01-6 0.14 0.50
1,4-Dioxane 123-91-1 0.16 0.50
Methyl Methacrylate 80-62-6 0.31 1.0
Matrix: Soil Gas Analytical Group/Method: TO-15 Scan
Unit: µg/m3
Analyte CAS Number Method
Detection Limit Reporting Limit
n-Heptane 142-82-5 0.17 0.50
cis-1,3-Dichloropropene 10061-01-5 0.14 0.50
4-Methyl-2-pentanone 108-10-1 0.16 0.50
trans-1,3-Dichloropropene 10061-02-6 0.16 0.50
1,1,2-Trichloroethane 79-00-5 0.16 0.50
Toluene 108-88-3 0.17 0.50
2-Hexanone 591-78-6 0.16 0.50
Dibromochloromethane 124-48-1 0.16 0.50
1,2-Dibromoethane 106-93-4 0.16 0.50
n-Butyl Acetate 123-86-4 0.16 0.50
n-Octane 111-65-9 0.18 0.50
Tetrachloroethene 127-18-4 0.14 0.50
Chlorobenzene 108-90-7 0.16 0.50
Ethylbenzene 100-41-4 0.16 0.50
m,p-Xylenes 179601-23-1 0.30 1.0
Bromoform 75-25-2 0.15 0.50
Styrene 100-42-5 0.15 0.50
o-Xylene 95-47-6 0.15 0.50
n-Nonane 111-84-2 0.15 0.50
1,1,2,2-Tetrachloroethane 79-34-5 0.15 0.50
Cumene 98-82-8 0.15 0.50
alpha-Pinene 80-56-8 0.14 0.50
n-Propylbenzene 103-65-1 0.16 0.50
4-Ethyltoluene 622-96-8 0.16 0.50
1,3,5-Trimethylbenzene 108-67-8 0.16 0.50
1,2,4-Trimethylbenzene 95-63-6 0.15 0.50
Benzyl Chloride 100-44-7 0.11 0.50
1,3-Dichlorobenzene 541-73-1 0.15 0.50
1,4-Dichlorobenzene 106-46-7 0.14 0.50
1,2-Dichlorobenzene 95-50-1 0.15 0.50
d-Limonene 5989-27-5 0.14 0.50
1,2-Dibromo-3-chloropropane 96-12-8 0.099 0.50
1,2,4-Trichlorobenzene 120-82-1 0.16 0.50
Naphthalene 91-20-3 0.18 0.50
Hexachlorobutadiene 87-68-3 0.14 0.50
CONTAMINANTS OF PRIMARY CONCERN
Matrix: SOIL Analytical Group/Method: VOCs, SW-846 8260C
Units: µg/kg
Analyte CAS Number Method Detection Limit Reporting Limit Anticipated concentration
EPA RSL Residential properties
Tetrachloroethene (PCE) 127-18-4 0.3 4.0 <100 24,000
Trichloroethene (TCE) 79-01-6 0.2 4.0 <100 940
cis-1,2-Dichloroethene 156-59-2 0.3 4.0 <100 1,600
trans-1,2-Dichloroethene 156-60-5 0.7 4.0 <100 1,600,000
Vinyl chloride 75-01-4 0.3 4.0 <25 59
Carbon tetrachloride 56-23-5 0.2 4.0 <25 650
Methyl tertiary butyl ether
(MTBE) 1634-04-4 0.3 4.0 <10,000 47,000
Benzene 71-43-2 0.2 4.0 <2,000 1,200
Toluene 108-88-3 0.4 4.0 <6,000,000 4,900,000
Ethylbenzene 100-41-4 0.6 4.0 <7,000 5,800
m,p-Xylene 108-38-3/106-
42-3 0.6 4.0 <700,000 560,000
Gasoline Range Organics
(GRO; C6 – C10) NA 16.8 50 <500 NA
Diesel Range Organics
(DRO; C10 – C28) NA 13.0 50 <1,000 NA
Oil Range Organics (ORO;
C28 – C36) NA 4.6 100 <1,500 NA
Matrix: SOIL Analytical Group/Method: Metals, SW-846 6010C/7470A
Units: µg/kg
Analyte CAS Number Method Detection Limit Reporting Limit Anticipated concentration
EPA RSL Residential properties
Lead 7439-92-1 330 1,000 <200 400,000
Matrix: Water Analytical Group/Method: VOCs, SW-846 8260C
Unit: µg/L
Analyte CAS Number Method
Detection Limit
Reporting
Limit
Anticipated
Concentration EPA MCL
Tetrachloroethene 127-18-4 0.06 1.0 <100 5
Trichloroethene 79-01-6 0.05 1.0 <100 5
cis-1,2-Dichloroethene 156-59-2 0.07 1.0 <50 70
trans-1,2-Dichloroethene 156-60-5 0.04 1.0 <50 100
Vinyl chloride 75-01-4 0.07 1.5 <25 2
Carbon tetrachloride 56-23-5 0.06 1.0 <25 5
Methyl tertiary butyl ether 1634-04-4 0.08 1.0 <2 20*
Benzene 71-43-2 0.14 1.0 <10 5
Toluene 108-88-3 0.10 1.0 <50 1
Ethylbenzene 100-41-4 0.07 1.0 <50 0.7
m,p-Xylene 108-38-3/106-
42-3 0.10 2.0 <50 10
* = Taste and Odor.
CONTAMINANTS OF PRIMARY CONCERN
Matrix: Soil Gas Analytical Group/Method: VOCs, TO-15 Scan
Unit: µg/m3
Analyte CAS
Number
Method
Detection
Limit
Reporting Limit Anticipated
Concentration
EPA Target
Shallow Gas
Concentration
(Risk=10-4)
Tetrachloroethene 127-18-4 0.14 0.50 <5 820
Trichloroethene 79-01-6 0.14 0.50 <5 22
cis-1,2-Dichloroethene 156-59-2 0.16 0.50 <1 350
trans-1,2-Dichloroethene 156-60-5 0.19 0.50 <1 700
Vinyl Chloride 75-01-4 0.17 0.50 <1 28
Methylene chloride 75-09-2 0.17 0.50 <1 5,200
Carbon tetrachloride 56-23-5 0.15 0.50 <1 160
Benzene 71-43-2 0.16 0.50 <1 310
Toluene 108-88-3 0.17 0.50 <1 4,000
Ethylbenzene 100-41-4 0.16 0.50 <1 2,200
m,p-Xylene 179601-
23-1 0.30 1.0 <5 70,000
MTBE 1634-04-4 0.17 0.50 <1 30,000
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k
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o
u
n
d
W
a
t
e
r
S
S
L
s
Pa
g
e
1
o
f
1
3
Re
g
i
o
n
a
l
S
c
r
e
e
n
i
n
g
L
e
v
e
l
(
R
S
L
)
S
u
m
m
a
r
y
T
a
b
l
e
(
T
R
=
1
E
-
0
6
,
H
Q
=
1
)
N
o
v
e
m
b
e
r
2
0
1
5
SF
O
(m
g
/
k
g
-
d
a
y
)
-1
k e y
IU
R
(u
g
/
m
3 )-1
k e y
R f D o
(m
g
/
k
g
-
da
y
)
k e y
Rf
C
i
(m
g
/
m
3 )
k e y
v o l
mu
t
a
-
ge
n
G
I
A
B
S
A
B
S
C sa
t
(m
g
/
k
g
)
A
n
a
l
y
t
e
C
A
S
N
o
.
Re
s
i
d
e
n
t
S
o
i
l
(m
g
/
k
g
)
k
e
y
In
d
u
s
t
r
i
a
l
S
o
i
l
(m
g
/
k
g
)
k
e
y
Re
s
i
d
e
n
t
A
i
r
(u
g
/
m
3 )k
e
y
I n d us
t r i a l
Ai
r
(u
g
/
m
3 )k
e
y
Tapwater (ug/L)
k
e
y
MCL (ug/L)Risk-based SSL (mg/kg)
k
e
y
MCL-based SSL (mg/kg)
Ke
y
:
I
=
I
R
I
S
;
P
=
P
P
R
T
V
;
A
=
A
T
S
D
R
;
C
=
C
a
l
E
P
A
;
X
=
A
P
P
E
N
D
I
X
P
P
R
T
V
S
C
R
E
E
N
(
S
e
e
F
A
Q
#
2
7
)
;
H
=
H
E
A
S
T
;
F
=
S
e
e
F
A
Q
;
J
=
N
e
w
J
e
r
s
ey
;
O
=
E
P
A
O
f
f
i
c
e
o
f
W
a
t
e
r
;
E
=
s
e
e
u
s
e
r
g
u
i
d
e
S
e
c
t
i
o
n
2
.
3
.
5
;
L
=
s
e
e
u
s
e
r
g
u
i
d
e
o
n
l
e
a
d
;
M
=
m
u
t
a
g
e
n
;
S
=
s
e
e
u
s
e
r
g
u
i
d
e
S
e
c
t
io
n
5
;
V
=
v
o
l
a
t
i
l
e
;
R
=
R
B
A
a
p
p
l
i
e
d
(
S
e
e
U
s
e
r
G
u
i
d
e
f
o
r
A
r
s
e
n
i
c
n
o
t
i
c
e
)
;
c =
c
a
n
c
e
r
;
n
=
n
o
n
c
a
n
c
e
r
;
*
=
w
h
e
r
e
:
n
S
L
<
1
0
0
X
c
S
L
;
*
*
=
w
h
e
r
e
n
S
L
<
1
0
X
c
S
L
;
S
S
L
v
a
l
u
e
s
a
r
e
b
a
s
e
d
o
n
D
A
F
=
1
;
m
=
C
o
n
c
e
n
t
r
ati
o
n
m
a
y
e
x
c
e
e
d
c
e
i
l
i
n
g
l
i
m
i
t
(
S
e
e
U
s
e
r
G
u
i
d
e
)
;
s
=
C
o
n
c
e
n
t
r
a
t
i
o
n
m
a
y
e
x
c
e
e
d
C
s
a
t
(
S
e
e
U
s
e
r
G
u
i
d
e
)
To
x
i
c
i
t
y
a
n
d
C
h
e
m
i
c
a
l
-
s
p
e
c
i
f
i
c
I
n
f
o
r
m
a
t
i
o
n
C
o
n
t
a
m
i
n
a
n
t
Sc
r
e
e
n
i
n
g
L
e
v
e
l
s
P
r
o
t
e
c
t
i
o
n
o
f
G
r
o
u
n
d
W
a
t
e
r
S
S
L
s
3.0
E
-
0
3
P
10
.
1
Bis
(
2
-
c
h
l
o
r
o
e
t
h
o
x
y
)
m
e
t
h
a
n
e
1
1
1
-
9
1
-
1
1
.
9
E
+
0
2
n
2
.
5
E
+
0
3
n
5.9E+01
n
1
.
3
E
-
0
2
n
1.1
E
+
0
0
I
3
.
3
E
-
0
4
I
V
1
5.1
E
+
0
3
B
i
s
(
2
-
c
h
l
o
r
o
e
t
h
y
l
)
e
t
h
e
r
1
1
1
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4
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3
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c
1
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0
E
+
0
0
c
8
.
5
E
-
0
3
c
3
.
7
E
-
0
2
c
1
.
4
E
-
0
2
c
3
.
6
E
-
0
6
c
2.2
E
+
0
2
I
6
.
2
E
-
0
2
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V
1
4.2
E
+
0
3
B
i
s
(
c
h
l
o
r
o
m
e
t
h
y
l
)
e
t
h
e
r
5
4
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8
8
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1
8
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3
E
-
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c
3
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6
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c
4
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5
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c
2
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0
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0
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c
7
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2
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0
5
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1
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7
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2
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10
.
1
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p
h
e
n
o
l
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0
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0
5
-
7
3
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2
E
+
0
3
n
4
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1
E
+
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4
n
7.7E+02
n
5
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8
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1
n
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-
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1
I
2
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0
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1
Bo
r
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n
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d
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8
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+
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0
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3
n
1
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3
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n
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0
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2
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0
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2
P
V
1
Bo
r
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n
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r
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c
h
l
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r
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d
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4
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4
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2
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3
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6
n
m
2
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1
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+
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1
n
8
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8
E
+
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1
n
4
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2
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1
n
n
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2
C
1
.
3
E
-
0
2
C
V
1
Bo
r
o
n
T
r
i
f
l
u
o
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d
e
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1
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7
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1
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4
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+
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1
n
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7
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+
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n
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6
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0
1
n
n
7.
0
E
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1
I
4.0
E
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0
3
I
1
Br
o
m
a
t
e
1
5
5
4
1
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4
5
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4
9
.
9
E
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1
c
4
.
7
E
+
0
0
c
1.1E-01
c
1
.
0
E
+
0
1
8
.
5
E
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0
4
c
7
.
7
E
-
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2
2.0
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+
0
0
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6
.
0
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0
4
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V
1
2.4
E
+
0
3
B
r
o
m
o
-
2
-
c
h
l
o
r
o
e
t
h
a
n
e
,
1
-
1
0
7
-
0
4
-
0
2
.
6
E
-
0
2
c
1
.
1
E
-
0
1
c
4
.
7
E
-
0
3
c
2
.
0
E
-
0
2
c
7
.
4
E
-
0
3
c
2
.
1
E
-
0
6
c
8.0
E
-
0
3
I
6
.
0
E
-
0
2
I
V
1
6.8
E
+
0
2
B
r
o
m
o
b
e
n
z
e
n
e
1
0
8
-
8
6
-
1
2
.
9
E
+
0
2
n
1
.
8
E
+
0
3
n
s
6
.
3
E
+
0
1
n
2
.
6
E
+
0
2
n
6
.
2
E
+
0
1
n
4
.
2
E
-
0
2
n
4.0
E
-
0
2
X
V
1
4.0
E
+
0
3
B
r
o
m
o
c
h
l
o
r
o
m
e
t
h
a
n
e
7
4
-
9
7
-
5
1
.
5
E
+
0
2
n
6
.
3
E
+
0
2
n
4
.
2
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+
0
1
n
1
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8
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+
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2
n
8
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3
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1
n
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1
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2
n
6.
2
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-
0
2
I
3
.
7
E
-
0
5
C
2
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0
E
-
0
2
I
V
1
9.3
E
+
0
2
B
r
o
m
o
d
i
c
h
l
o
r
o
m
e
t
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a
n
e
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5
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2
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E
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1
c
1
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3
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+
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c
7
.
6
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2
c
3
.
3
E
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0
1
c
1
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3
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1
c
8
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0
E
+
0
1
(
F
)
3
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6
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5
c
2
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2
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0
2
7.
9
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3
I
1
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1
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6
I
2
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0
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V
1
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+
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r
o
m
o
f
o
r
m
7
5
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5
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8
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6
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1
c
2
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6
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1
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c
3
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3
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5
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1
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r
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m
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e
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2
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V
1
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o
m
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10
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1
Br
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m
o
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y
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4
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t
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t
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Bu
t
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e
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4
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t
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y
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8
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n
m
3
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2
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3
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n
2.
0
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1
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4.0
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10
.
1
Ch
l
o
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o
a
n
i
l
i
n
e
,
p
-
1
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6
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4
7
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8
2
.
7
E
+
0
0
c
*
1
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1
E
+
0
1
c
3.7E-01
c
1
.
6
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4
c
2.0
E
-
0
2
I
5
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0
E
-
0
2
P
V
1
7.6
E
+
0
2
C
h
l
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o
b
e
n
z
e
n
e
1
0
8
-
9
0
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7
2
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8
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0
2
n
1
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3
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0
3
n
s
5
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2
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1
n
2
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2
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0
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7
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8
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1
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0
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5
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3
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n
6
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8
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0
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1
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0
1
C
3
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0
5
C
2
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0
E
-
0
2
I
10
.
1
Ch
l
o
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o
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z
i
l
a
t
e
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1
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1
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0
0
c
2
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1
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0
1
c
9
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1
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4
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0
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1
c
3
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1
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0
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1
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0
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0
3
c
3.0
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0
2
X
10
.
1
Ch
l
o
r
o
b
e
n
z
o
i
c
A
c
i
d
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4
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1
1
-
3
1
.
9
E
+
0
3
n
2
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5
E
+
0
4
n
5.1E+02
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1
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3
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1
n
3.0
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0
3
P
3
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0
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1
P
V
1
2.9
E
+
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2
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h
l
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n
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o
t
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2
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5
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3
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3
n
3
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5
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0
1
n
1
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2
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-
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1
n
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0
2
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V
1
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E
+
0
2
C
h
l
o
r
o
b
u
t
a
n
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,
1
-
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0
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-
6
9
-
3
3
.
1
E
+
0
3
n
s
4
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7
E
+
0
4
n
s
6.4E+02
n
2
.
6
E
-
0
1
n
Pa
g
e
2
o
f
1
3
Re
g
i
o
n
a
l
S
c
r
e
e
n
i
n
g
L
e
v
e
l
(
R
S
L
)
S
u
m
m
a
r
y
T
a
b
l
e
(
T
R
=
1
E
-
0
6
,
H
Q
=
1
)
N
o
v
e
m
b
e
r
2
0
1
5
SF
O
(m
g
/
k
g
-
d
a
y
)
-1
k e y
IU
R
(u
g
/
m
3 )-1
k e y
R f D o
(m
g
/
k
g
-
da
y
)
k e y
Rf
C
i
(m
g
/
m
3 )
k e y
v o l
mu
t
a
-
ge
n
G
I
A
B
S
A
B
S
C sa
t
(m
g
/
k
g
)
A
n
a
l
y
t
e
C
A
S
N
o
.
Re
s
i
d
e
n
t
S
o
i
l
(m
g
/
k
g
)
k
e
y
In
d
u
s
t
r
i
a
l
S
o
i
l
(m
g
/
k
g
)
k
e
y
Re
s
i
d
e
n
t
A
i
r
(u
g
/
m
3 )k
e
y
I n d us
t r i a l
Ai
r
(u
g
/
m
3 )k
e
y
Tapwater (ug/L)
k
e
y
MCL (ug/L)Risk-based SSL (mg/kg)
k
e
y
MCL-based SSL (mg/kg)
Ke
y
:
I
=
I
R
I
S
;
P
=
P
P
R
T
V
;
A
=
A
T
S
D
R
;
C
=
C
a
l
E
P
A
;
X
=
A
P
P
E
N
D
I
X
P
P
R
T
V
S
C
R
E
E
N
(
S
e
e
F
A
Q
#
2
7
)
;
H
=
H
E
A
S
T
;
F
=
S
e
e
F
A
Q
;
J
=
N
e
w
J
e
r
s
ey
;
O
=
E
P
A
O
f
f
i
c
e
o
f
W
a
t
e
r
;
E
=
s
e
e
u
s
e
r
g
u
i
d
e
S
e
c
t
i
o
n
2
.
3
.
5
;
L
=
s
e
e
u
s
e
r
g
u
i
d
e
o
n
l
e
a
d
;
M
=
m
u
t
a
g
e
n
;
S
=
s
e
e
u
s
e
r
g
u
i
d
e
S
e
c
t
io
n
5
;
V
=
v
o
l
a
t
i
l
e
;
R
=
R
B
A
a
p
p
l
i
e
d
(
S
e
e
U
s
e
r
G
u
i
d
e
f
o
r
A
r
s
e
n
i
c
n
o
t
i
c
e
)
;
c =
c
a
n
c
e
r
;
n
=
n
o
n
c
a
n
c
e
r
;
*
=
w
h
e
r
e
:
n
S
L
<
1
0
0
X
c
S
L
;
*
*
=
w
h
e
r
e
n
S
L
<
1
0
X
c
S
L
;
S
S
L
v
a
l
u
e
s
a
r
e
b
a
s
e
d
o
n
D
A
F
=
1
;
m
=
C
o
n
c
e
n
t
r
ati
o
n
m
a
y
e
x
c
e
e
d
c
e
i
l
i
n
g
l
i
m
i
t
(
S
e
e
U
s
e
r
G
u
i
d
e
)
;
s
=
C
o
n
c
e
n
t
r
a
t
i
o
n
m
a
y
e
x
c
e
e
d
C
s
a
t
(
S
e
e
U
s
e
r
G
u
i
d
e
)
To
x
i
c
i
t
y
a
n
d
C
h
e
m
i
c
a
l
-
s
p
e
c
i
f
i
c
I
n
f
o
r
m
a
t
i
o
n
C
o
n
t
a
m
i
n
a
n
t
Sc
r
e
e
n
i
n
g
L
e
v
e
l
s
P
r
o
t
e
c
t
i
o
n
o
f
G
r
o
u
n
d
W
a
t
e
r
S
S
L
s
5.
0
E
+
0
1
I
V
1
1.7
E
+
0
3
C
h
l
o
r
o
d
i
f
l
u
o
r
o
m
e
t
h
a
n
e
7
5
-
4
5
-
6
4
.
9
E
+
0
4
n
s
2
.
1
E
+
0
5
n
m
s
5
.
2
E
+
0
4
n
2
.
2
E
+
0
5
n
1
.
0
E
+
0
5
n
4
.
3
E
+
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1
n
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E
-
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2
P
V
1
1.1
E
+
0
5
C
h
l
o
r
o
e
t
h
a
n
o
l
,
2
-
1
0
7
-
0
7
-
3
1
.
6
E
+
0
3
n
2
.
3
E
+
0
4
n
4.0E+02
n
8
.
1
E
-
0
2
n
3.
1
E
-
0
2
C
2
.
3
E
-
0
5
I
1
.
0
E
-
0
2
I
9
.
8
E
-
0
2
A
V
1
2.5
E
+
0
3
C
h
l
o
r
o
f
o
r
m
6
7
-
6
6
-
3
3
.
2
E
-
0
1
c
1
.
4
E
+
0
0
c
1
.
2
E
-
0
1
c
5
.
3
E
-
0
1
c
2
.
2
E
-
0
1
c
8
.
0
E
+
0
1
(
F
)
6
.
1
E
-
0
5
c
2
.
2
E
-
0
2
9.0
E
-
0
2
I
V
1
1.3
E
+
0
3
C
h
l
o
r
o
m
e
t
h
a
n
e
7
4
-
8
7
-
3
1
.
1
E
+
0
2
n
4
.
6
E
+
0
2
n
9
.
4
E
+
0
1
n
3
.
9
E
+
0
2
n
1
.
9
E
+
0
2
n
4
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9
E
-
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2
n
2.4
E
+
0
0
C
6
.
9
E
-
0
4
C
V
1
9.3
E
+
0
3
C
h
l
o
r
o
m
e
t
h
y
l
M
e
t
h
y
l
E
t
h
e
r
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0
7
-
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0
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2
2
.
0
E
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0
2
c
8
.
9
E
-
0
2
c
4
.
1
E
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0
3
c
1
.
8
E
-
0
2
c
6
.
5
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-
0
3
c
1
.
4
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-
0
6
c
3.
0
E
-
0
1
P
3.0
E
-
0
3
P
1
.
0
E
-
0
5
X
1
0
.
1
Ch
l
o
r
o
n
i
t
r
o
b
e
n
z
e
n
e
,
o
-
8
8
-
7
3
-
3
1
.
8
E
+
0
0
c
7
.
7
E
+
0
0
c
1
.
0
E
-
0
2
n
4
.
4
E
-
0
2
n
2
.
4
E
-
0
1
c
2
.
2
E
-
0
4
c
6.
3
E
-
0
3
P
1.0
E
-
0
3
P
6
.
0
E
-
0
4
P
1
0
.
1
Ch
l
o
r
o
n
i
t
r
o
b
e
n
z
e
n
e
,
p
-
1
0
0
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0
0
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5
6
.
3
E
+
0
1
n
3
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6
E
+
0
2
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*
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6
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3
E
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1
n
2
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6
E
+
0
0
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1
.
1
E
+
0
1
c
*
*
1
.
0
E
-
0
2
c
*
*
5.0
E
-
0
3
I
V
1
2.2
E
+
0
4
C
h
l
o
r
o
p
h
e
n
o
l
,
2
-
9
5
-
5
7
-
8
3
.
9
E
+
0
2
n
5
.
8
E
+
0
3
n
9.1E+01
n
7
.
4
E
-
0
2
n
4.0
E
-
0
4
C
V
1
6.2
E
+
0
2
C
h
l
o
r
o
p
i
c
r
i
n
7
6
-
0
6
-
2
2
.
0
E
+
0
0
n
8
.
2
E
+
0
0
n
4
.
2
E
-
0
1
n
1
.
8
E
+
0
0
n
8
.
3
E
-
0
1
n
2
.
5
E
-
0
4
n
3.
1
E
-
0
3
C
8
.
9
E
-
0
7
C
1
.
5
E
-
0
2
I
10
.
1
Ch
l
o
r
o
t
h
a
l
o
n
i
l
1
8
9
7
-
4
5
-
6
1
.
8
E
+
0
2
c
*
*
7
.
4
E
+
0
2
c
*
3
.
2
E
+
0
0
c
1
.
4
E
+
0
1
c
2
.
2
E
+
0
1
c
*
5
.
0
E
-
0
2
c
*
2.0
E
-
0
2
I
V
1
9.1
E
+
0
2
C
h
l
o
r
o
t
o
l
u
e
n
e
,
o
-
9
5
-
4
9
-
8
1
.
6
E
+
0
3
n
s
2
.
3
E
+
0
4
n
s
2.4E+02
n
2
.
3
E
-
0
1
n
2.0
E
-
0
2
X
V
1
2.5
E
+
0
2
C
h
l
o
r
o
t
o
l
u
e
n
e
,
p
-
1
0
6
-
4
3
-
4
1
.
6
E
+
0
3
n
s
2
.
3
E
+
0
4
n
s
2.5E+02
n
2
.
4
E
-
0
1
n
2.4
E
+
0
2
C
6
.
9
E
-
0
2
C
10
.
1
Ch
l
o
r
o
z
o
t
o
c
i
n
5
4
7
4
9
-
9
0
-
5
2
.
3
E
-
0
3
c
9
.
6
E
-
0
3
c
4
.
1
E
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0
5
c
1
.
8
E
-
0
4
c
3
.
2
E
-
0
4
c
7
.
1
E
-
0
8
c
2.0
E
-
0
1
I
10
.
1
Ch
l
o
r
p
r
o
p
h
a
m
1
0
1
-
2
1
-
3
1
.
3
E
+
0
4
n
1
.
6
E
+
0
5
n
m
2.8E+03
n
2
.
6
E
+
0
0
n
1.0
E
-
0
3
A
10
.
1
Ch
l
o
r
p
y
r
i
f
o
s
2
9
2
1
-
8
8
-
2
6
.
3
E
+
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1
n
8
.
2
E
+
0
2
n
8.4E+00
n
1
.
2
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1
n
1.0
E
-
0
2
H
10
.
1
Ch
l
o
r
p
y
r
i
f
o
s
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e
t
h
y
l
5
5
9
8
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1
3
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0
6
.
3
E
+
0
2
n
8
.
2
E
+
0
3
n
1.2E+02
n
5
.
4
E
-
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1
n
5.0
E
-
0
2
I
10
.
1
Ch
l
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r
s
u
l
f
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r
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n
6
4
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2
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2
-
3
3
.
2
E
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0
3
n
4
.
1
E
+
0
4
n
9.9E+02
n
8
.
3
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1
n
1.0
E
-
0
2
I
10
.
1
Ch
l
o
r
t
h
a
l
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d
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m
e
t
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y
l
1
8
6
1
-
3
2
-
1
6
.
3
E
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b
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r
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y
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k e y
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t
a
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ge
n
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B
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t
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s
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n
t
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l
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g
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k
e
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d
u
s
t
r
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a
l
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l
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g
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k
e
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s
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d
e
n
t
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r
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m
3 )k
e
y
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t r i a l
Ai
r
(u
g
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m
3 )k
e
y
Tapwater (ug/L)
k
e
y
MCL (ug/L)Risk-based SSL (mg/kg)
k
e
y
MCL-based SSL (mg/kg)
Ke
y
:
I
=
I
R
I
S
;
P
=
P
P
R
T
V
;
A
=
A
T
S
D
R
;
C
=
C
a
l
E
P
A
;
X
=
A
P
P
E
N
D
I
X
P
P
R
T
V
S
C
R
E
E
N
(
S
e
e
F
A
Q
#
2
7
)
;
H
=
H
E
A
S
T
;
F
=
S
e
e
F
A
Q
;
J
=
N
e
w
J
e
r
s
ey
;
O
=
E
P
A
O
f
f
i
c
e
o
f
W
a
t
e
r
;
E
=
s
e
e
u
s
e
r
g
u
i
d
e
S
e
c
t
i
o
n
2
.
3
.
5
;
L
=
s
e
e
u
s
e
r
g
u
i
d
e
o
n
l
e
a
d
;
M
=
m
u
t
a
g
e
n
;
S
=
s
e
e
u
s
e
r
g
u
i
d
e
S
e
c
t
io
n
5
;
V
=
v
o
l
a
t
i
l
e
;
R
=
R
B
A
a
p
p
l
i
e
d
(
S
e
e
U
s
e
r
G
u
i
d
e
f
o
r
A
r
s
e
n
i
c
n
o
t
i
c
e
)
;
c =
c
a
n
c
e
r
;
n
=
n
o
n
c
a
n
c
e
r
;
*
=
w
h
e
r
e
:
n
S
L
<
1
0
0
X
c
S
L
;
*
*
=
w
h
e
r
e
n
S
L
<
1
0
X
c
S
L
;
S
S
L
v
a
l
u
e
s
a
r
e
b
a
s
e
d
o
n
D
A
F
=
1
;
m
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C
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n
c
e
n
t
r
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n
m
a
y
e
x
c
e
e
d
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l
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m
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t
(
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e
U
s
e
r
G
u
i
d
e
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t
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c
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n
9
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4
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+
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n
s
7
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3
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+
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n
3
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1
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1
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5
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+
0
3
n
3
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7
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-
0
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n
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0
2
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V
1
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+
0
2
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i
i
s
o
p
r
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y
l
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e
t
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t
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4
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5
-
6
6
.
3
E
+
0
3
n
s
9
.
3
E
+
0
4
n
s
1.6E+03
n
4
.
5
E
-
0
1
n
2.0
E
-
0
2
I
10
.
1
Dim
e
t
h
i
p
i
n
5
5
2
9
0
-
6
4
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7
1
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3
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+
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3
n
1
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6
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+
0
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4.0E+02
n
8
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8
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0
2
n
2.0
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0
4
I
10
.
1
Dim
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t
h
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a
t
e
6
0
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5
1
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1
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3
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1
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6
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+
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4.0E+00
n
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+
0
0
P
10
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1
Dim
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t
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o
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b
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n
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3
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0
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4
3
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4
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1
c
1
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4
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+
0
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c
4.7E-02
c
5
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8
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-
0
5
c
1.
7
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-
0
3
P
6.0
E
-
0
2
P
10
.
1
Dim
e
t
h
y
l
m
e
t
h
y
l
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n
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t
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2
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0
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c
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c
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4.6E+01
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c
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3
C
10
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1
Dim
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l
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n
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8
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10
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1
Dim
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t
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a
n
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l
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10
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3.5E+01
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1
P
10
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Dim
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n
z
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6.5E-03
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10
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5
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6
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0
4
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3.6E+02
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4
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2
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0
4
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10
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1
Dim
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y
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2
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6
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9
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3
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2
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-
0
3
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10
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1
Dim
e
t
h
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l
p
h
e
n
o
l
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3
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4
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5
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6
5
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3
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2
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1
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2
n
Pa
g
e
4
o
f
1
3
Re
g
i
o
n
a
l
S
c
r
e
e
n
i
n
g
L
e
v
e
l
(
R
S
L
)
S
u
m
m
a
r
y
T
a
b
l
e
(
T
R
=
1
E
-
0
6
,
H
Q
=
1
)
N
o
v
e
m
b
e
r
2
0
1
5
SF
O
(m
g
/
k
g
-
d
a
y
)
-1
k e y
IU
R
(u
g
/
m
3 )-1
k e y
R f D o
(m
g
/
k
g
-
da
y
)
k e y
Rf
C
i
(m
g
/
m
3 )
k e y
v o l
mu
t
a
-
ge
n
G
I
A
B
S
A
B
S
C sa
t
(m
g
/
k
g
)
A
n
a
l
y
t
e
C
A
S
N
o
.
Re
s
i
d
e
n
t
S
o
i
l
(m
g
/
k
g
)
k
e
y
In
d
u
s
t
r
i
a
l
S
o
i
l
(m
g
/
k
g
)
k
e
y
Re
s
i
d
e
n
t
A
i
r
(u
g
/
m
3 )k
e
y
I n d us
t r i a l
Ai
r
(u
g
/
m
3 )k
e
y
Tapwater (ug/L)
k
e
y
MCL (ug/L)Risk-based SSL (mg/kg)
k
e
y
MCL-based SSL (mg/kg)
Ke
y
:
I
=
I
R
I
S
;
P
=
P
P
R
T
V
;
A
=
A
T
S
D
R
;
C
=
C
a
l
E
P
A
;
X
=
A
P
P
E
N
D
I
X
P
P
R
T
V
S
C
R
E
E
N
(
S
e
e
F
A
Q
#
2
7
)
;
H
=
H
E
A
S
T
;
F
=
S
e
e
F
A
Q
;
J
=
N
e
w
J
e
r
s
ey
;
O
=
E
P
A
O
f
f
i
c
e
o
f
W
a
t
e
r
;
E
=
s
e
e
u
s
e
r
g
u
i
d
e
S
e
c
t
i
o
n
2
.
3
.
5
;
L
=
s
e
e
u
s
e
r
g
u
i
d
e
o
n
l
e
a
d
;
M
=
m
u
t
a
g
e
n
;
S
=
s
e
e
u
s
e
r
g
u
i
d
e
S
e
c
t
io
n
5
;
V
=
v
o
l
a
t
i
l
e
;
R
=
R
B
A
a
p
p
l
i
e
d
(
S
e
e
U
s
e
r
G
u
i
d
e
f
o
r
A
r
s
e
n
i
c
n
o
t
i
c
e
)
;
c =
c
a
n
c
e
r
;
n
=
n
o
n
c
a
n
c
e
r
;
*
=
w
h
e
r
e
:
n
S
L
<
1
0
0
X
c
S
L
;
*
*
=
w
h
e
r
e
n
S
L
<
1
0
X
c
S
L
;
S
S
L
v
a
l
u
e
s
a
r
e
b
a
s
e
d
o
n
D
A
F
=
1
;
m
=
C
o
n
c
e
n
t
r
ati
o
n
m
a
y
e
x
c
e
e
d
c
e
i
l
i
n
g
l
i
m
i
t
(
S
e
e
U
s
e
r
G
u
i
d
e
)
;
s
=
C
o
n
c
e
n
t
r
a
t
i
o
n
m
a
y
e
x
c
e
e
d
C
s
a
t
(
S
e
e
U
s
e
r
G
u
i
d
e
)
To
x
i
c
i
t
y
a
n
d
C
h
e
m
i
c
a
l
-
s
p
e
c
i
f
i
c
I
n
f
o
r
m
a
t
i
o
n
C
o
n
t
a
m
i
n
a
n
t
Sc
r
e
e
n
i
n
g
L
e
v
e
l
s
P
r
o
t
e
c
t
i
o
n
o
f
G
r
o
u
n
d
W
a
t
e
r
S
S
L
s
4.
5
E
-
0
2
C
1
.
3
E
-
0
5
C
V
1
1.3
E
+
0
3
D
i
m
e
t
h
y
l
v
i
n
y
l
c
h
l
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r
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d
e
5
1
3
-
3
7
-
1
2
.
0
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-
0
1
c
8
.
9
E
-
0
1
c
2
.
2
E
-
0
1
c
9
.
4
E
-
0
1
c
3
.
3
E
-
0
1
c
2
.
4
E
-
0
4
c
8.0
E
-
0
5
X
10
.
1
Din
i
t
r
o
-
o
-
c
r
e
s
o
l
,
4
,
6
-
5
3
4
-
5
2
-
1
5
.
1
E
+
0
0
n
6
.
6
E
+
0
1
n
1.5E+00
n
2
.
6
E
-
0
3
n
2.0
E
-
0
3
I
10
.
1
Din
i
t
r
o
-
o
-
c
y
c
l
o
h
e
x
y
l
P
h
e
n
o
l
,
4
,
6
-
1
3
1
-
8
9
-
5
1
.
3
E
+
0
2
n
1
.
6
E
+
0
3
n
2.3E+01
n
7
.
7
E
-
0
1
n
1.0
E
-
0
4
P
10
.
1
Din
i
t
r
o
b
e
n
z
e
n
e
,
1
,
2
-
5
2
8
-
2
9
-
0
6
.
3
E
+
0
0
n
8
.
2
E
+
0
1
n
1.9E+00
n
1
.
8
E
-
0
3
n
1.0
E
-
0
4
I
10
.
1
Din
i
t
r
o
b
e
n
z
e
n
e
,
1
,
3
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9
9
-
6
5
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0
6
.
3
E
+
0
0
n
8
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2
E
+
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1
n
2.0E+00
n
1
.
8
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3
n
1.0
E
-
0
4
P
10
.
1
Din
i
t
r
o
b
e
n
z
e
n
e
,
1
,
4
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1
0
0
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2
5
-
4
6
.
3
E
+
0
0
n
8
.
2
E
+
0
1
n
2.0E+00
n
1
.
8
E
-
0
3
n
2.0
E
-
0
3
I
10
.
1
Din
i
t
r
o
p
h
e
n
o
l
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2
,
4
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5
1
-
2
8
-
5
1
.
3
E
+
0
2
n
1
.
6
E
+
0
3
n
3.9E+01
n
4
.
4
E
-
0
2
n
6.
8
E
-
0
1
I
10
.
1
Din
i
t
r
o
t
o
l
u
e
n
e
M
i
x
t
u
r
e
,
2
,
4
/
2
,
6
-
N
A
8
.
0
E
-
0
1
c
3
.
4
E
+
0
0
c
1.1E-01
c
1
.
5
E
-
0
4
c
3.
1
E
-
0
1
C
8
.
9
E
-
0
5
C
2
.
0
E
-
0
3
I
1
0
.
1
0
2
Din
i
t
r
o
t
o
l
u
e
n
e
,
2
,
4
-
1
2
1
-
1
4
-
2
1
.
7
E
+
0
0
c
*
7
.
4
E
+
0
0
c
3
.
2
E
-
0
2
c
1
.
4
E
-
0
1
c
2
.
4
E
-
0
1
c
3
.
2
E
-
0
4
c
1.5
E
+
0
0
P
3.0
E
-
0
4
X
1
0
.
0
9
9
Din
i
t
r
o
t
o
l
u
e
n
e
,
2
,
6
-
6
0
6
-
2
0
-
2
3
.
6
E
-
0
1
c
*
1
.
5
E
+
0
0
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3
Re
g
i
o
n
a
l
S
c
r
e
e
n
i
n
g
L
e
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e
l
(
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S
L
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u
m
m
a
r
y
T
a
b
l
e
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T
R
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E
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0
6
,
H
Q
=
1
)
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o
v
e
m
b
e
r
2
0
1
5
SF
O
(m
g
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k
g
-
d
a
y
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k e y
IU
R
(u
g
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m
3 )-1
k e y
R f D o
(m
g
/
k
g
-
da
y
)
k e y
Rf
C
i
(m
g
/
m
3 )
k e y
v o l
mu
t
a
-
ge
n
G
I
A
B
S
A
B
S
C sa
t
(m
g
/
k
g
)
A
n
a
l
y
t
e
C
A
S
N
o
.
Re
s
i
d
e
n
t
S
o
i
l
(m
g
/
k
g
)
k
e
y
In
d
u
s
t
r
i
a
l
S
o
i
l
(m
g
/
k
g
)
k
e
y
Re
s
i
d
e
n
t
A
i
r
(u
g
/
m
3 )k
e
y
I n d us
t r i a l
Ai
r
(u
g
/
m
3 )k
e
y
Tapwater (ug/L)
k
e
y
MCL (ug/L)Risk-based SSL (mg/kg)
k
e
y
MCL-based SSL (mg/kg)
Ke
y
:
I
=
I
R
I
S
;
P
=
P
P
R
T
V
;
A
=
A
T
S
D
R
;
C
=
C
a
l
E
P
A
;
X
=
A
P
P
E
N
D
I
X
P
P
R
T
V
S
C
R
E
E
N
(
S
e
e
F
A
Q
#
2
7
)
;
H
=
H
E
A
S
T
;
F
=
S
e
e
F
A
Q
;
J
=
N
e
w
J
e
r
s
ey
;
O
=
E
P
A
O
f
f
i
c
e
o
f
W
a
t
e
r
;
E
=
s
e
e
u
s
e
r
g
u
i
d
e
S
e
c
t
i
o
n
2
.
3
.
5
;
L
=
s
e
e
u
s
e
r
g
u
i
d
e
o
n
l
e
a
d
;
M
=
m
u
t
a
g
e
n
;
S
=
s
e
e
u
s
e
r
g
u
i
d
e
S
e
c
t
io
n
5
;
V
=
v
o
l
a
t
i
l
e
;
R
=
R
B
A
a
p
p
l
i
e
d
(
S
e
e
U
s
e
r
G
u
i
d
e
f
o
r
A
r
s
e
n
i
c
n
o
t
i
c
e
)
;
c =
c
a
n
c
e
r
;
n
=
n
o
n
c
a
n
c
e
r
;
*
=
w
h
e
r
e
:
n
S
L
<
1
0
0
X
c
S
L
;
*
*
=
w
h
e
r
e
n
S
L
<
1
0
X
c
S
L
;
S
S
L
v
a
l
u
e
s
a
r
e
b
a
s
e
d
o
n
D
A
F
=
1
;
m
=
C
o
n
c
e
n
t
r
ati
o
n
m
a
y
e
x
c
e
e
d
c
e
i
l
i
n
g
l
i
m
i
t
(
S
e
e
U
s
e
r
G
u
i
d
e
)
;
s
=
C
o
n
c
e
n
t
r
a
t
i
o
n
m
a
y
e
x
c
e
e
d
C
s
a
t
(
S
e
e
U
s
e
r
G
u
i
d
e
)
To
x
i
c
i
t
y
a
n
d
C
h
e
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i
c
a
l
-
s
p
e
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c
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n
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n
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o
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t
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m
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n
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n
t
Sc
r
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e
n
i
n
g
L
e
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e
l
s
P
r
o
t
e
c
t
i
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n
o
f
G
r
o
u
n
d
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a
t
e
r
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S
L
s
6.0
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2
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10
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l
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n
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l
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1
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r
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d
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n
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s
e
t
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l
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r
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i
b
e
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z
o
f
u
r
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2
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m
m
a
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l
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b
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r
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d
a
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m
3 )-1
k e y
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g
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k
g
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da
y
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k e y
Rf
C
i
(m
g
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m
3 )
k e y
v o l
mu
t
a
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ge
n
G
I
A
B
S
A
B
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C sa
t
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g
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g
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n
a
l
y
t
e
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S
N
o
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Re
s
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n
t
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l
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k
e
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In
d
u
s
t
r
i
a
l
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o
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l
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g
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g
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e
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Re
s
i
d
e
n
t
A
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r
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m
3 )k
e
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t r i a l
Ai
r
(u
g
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m
3 )k
e
y
Tapwater (ug/L)
k
e
y
MCL (ug/L)Risk-based SSL (mg/kg)
k
e
y
MCL-based SSL (mg/kg)
Ke
y
:
I
=
I
R
I
S
;
P
=
P
P
R
T
V
;
A
=
A
T
S
D
R
;
C
=
C
a
l
E
P
A
;
X
=
A
P
P
E
N
D
I
X
P
P
R
T
V
S
C
R
E
E
N
(
S
e
e
F
A
Q
#
2
7
)
;
H
=
H
E
A
S
T
;
F
=
S
e
e
F
A
Q
;
J
=
N
e
w
J
e
r
s
ey
;
O
=
E
P
A
O
f
f
i
c
e
o
f
W
a
t
e
r
;
E
=
s
e
e
u
s
e
r
g
u
i
d
e
S
e
c
t
i
o
n
2
.
3
.
5
;
L
=
s
e
e
u
s
e
r
g
u
i
d
e
o
n
l
e
a
d
;
M
=
m
u
t
a
g
e
n
;
S
=
s
e
e
u
s
e
r
g
u
i
d
e
S
e
c
t
io
n
5
;
V
=
v
o
l
a
t
i
l
e
;
R
=
R
B
A
a
p
p
l
i
e
d
(
S
e
e
U
s
e
r
G
u
i
d
e
f
o
r
A
r
s
e
n
i
c
n
o
t
i
c
e
)
;
c =
c
a
n
c
e
r
;
n
=
n
o
n
c
a
n
c
e
r
;
*
=
w
h
e
r
e
:
n
S
L
<
1
0
0
X
c
S
L
;
*
*
=
w
h
e
r
e
n
S
L
<
1
0
X
c
S
L
;
S
S
L
v
a
l
u
e
s
a
r
e
b
a
s
e
d
o
n
D
A
F
=
1
;
m
=
C
o
n
c
e
n
t
r
ati
o
n
m
a
y
e
x
c
e
e
d
c
e
i
l
i
n
g
l
i
m
i
t
(
S
e
e
U
s
e
r
G
u
i
d
e
)
;
s
=
C
o
n
c
e
n
t
r
a
t
i
o
n
m
a
y
e
x
c
e
e
d
C
s
a
t
(
S
e
e
U
s
e
r
G
u
i
d
e
)
To
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i
c
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t
y
a
n
d
C
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e
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c
a
l
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s
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e
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c
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a
n
t
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n
g
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e
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l
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P
r
o
t
e
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t
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o
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r
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r
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S
L
s
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C
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4
C
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0
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0
2
5
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2
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L
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5
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a
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~
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g
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7
o
f
1
3
Re
g
i
o
n
a
l
S
c
r
e
e
n
i
n
g
L
e
v
e
l
(
R
S
L
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S
u
m
m
a
r
y
T
a
b
l
e
(
T
R
=
1
E
-
0
6
,
H
Q
=
1
)
N
o
v
e
m
b
e
r
2
0
1
5
SF
O
(m
g
/
k
g
-
d
a
y
)
-1
k e y
IU
R
(u
g
/
m
3 )-1
k e y
R f D o
(m
g
/
k
g
-
da
y
)
k e y
Rf
C
i
(m
g
/
m
3 )
k e y
v o l
mu
t
a
-
ge
n
G
I
A
B
S
A
B
S
C sa
t
(m
g
/
k
g
)
A
n
a
l
y
t
e
C
A
S
N
o
.
Re
s
i
d
e
n
t
S
o
i
l
(m
g
/
k
g
)
k
e
y
In
d
u
s
t
r
i
a
l
S
o
i
l
(m
g
/
k
g
)
k
e
y
Re
s
i
d
e
n
t
A
i
r
(u
g
/
m
3 )k
e
y
I n d us
t r i a l
Ai
r
(u
g
/
m
3 )k
e
y
Tapwater (ug/L)
k
e
y
MCL (ug/L)Risk-based SSL (mg/kg)
k
e
y
MCL-based SSL (mg/kg)
Ke
y
:
I
=
I
R
I
S
;
P
=
P
P
R
T
V
;
A
=
A
T
S
D
R
;
C
=
C
a
l
E
P
A
;
X
=
A
P
P
E
N
D
I
X
P
P
R
T
V
S
C
R
E
E
N
(
S
e
e
F
A
Q
#
2
7
)
;
H
=
H
E
A
S
T
;
F
=
S
e
e
F
A
Q
;
J
=
N
e
w
J
e
r
s
ey
;
O
=
E
P
A
O
f
f
i
c
e
o
f
W
a
t
e
r
;
E
=
s
e
e
u
s
e
r
g
u
i
d
e
S
e
c
t
i
o
n
2
.
3
.
5
;
L
=
s
e
e
u
s
e
r
g
u
i
d
e
o
n
l
e
a
d
;
M
=
m
u
t
a
g
e
n
;
S
=
s
e
e
u
s
e
r
g
u
i
d
e
S
e
c
t
io
n
5
;
V
=
v
o
l
a
t
i
l
e
;
R
=
R
B
A
a
p
p
l
i
e
d
(
S
e
e
U
s
e
r
G
u
i
d
e
f
o
r
A
r
s
e
n
i
c
n
o
t
i
c
e
)
;
c =
c
a
n
c
e
r
;
n
=
n
o
n
c
a
n
c
e
r
;
*
=
w
h
e
r
e
:
n
S
L
<
1
0
0
X
c
S
L
;
*
*
=
w
h
e
r
e
n
S
L
<
1
0
X
c
S
L
;
S
S
L
v
a
l
u
e
s
a
r
e
b
a
s
e
d
o
n
D
A
F
=
1
;
m
=
C
o
n
c
e
n
t
r
ati
o
n
m
a
y
e
x
c
e
e
d
c
e
i
l
i
n
g
l
i
m
i
t
(
S
e
e
U
s
e
r
G
u
i
d
e
)
;
s
=
C
o
n
c
e
n
t
r
a
t
i
o
n
m
a
y
e
x
c
e
e
d
C
s
a
t
(
S
e
e
U
s
e
r
G
u
i
d
e
)
To
x
i
c
i
t
y
a
n
d
C
h
e
m
i
c
a
l
-
s
p
e
c
i
f
i
c
I
n
f
o
r
m
a
t
i
o
n
C
o
n
t
a
m
i
n
a
n
t
Sc
r
e
e
n
i
n
g
L
e
v
e
l
s
P
r
o
t
e
c
t
i
o
n
o
f
G
r
o
u
n
d
W
a
t
e
r
S
S
L
s
7.0
E
-
0
2
H
V
1
5.0
E
+
0
2
M
e
t
h
y
l
s
t
y
r
e
n
e
,
A
l
p
h
a
-
9
8
-
8
3
-
9
5
.
5
E
+
0
3
n
s
8
.
2
E
+
0
4
n
s
7.8E+02
n
1
.
2
E
+
0
0
n
1.5
E
-
0
1
I
10
.
1
Me
t
o
l
a
c
h
l
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r
5
1
2
1
8
-
4
5
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2
9
.
5
E
+
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3
n
1
.
2
E
+
0
5
n
m
2.7E+03
n
3
.
2
E
+
0
0
n
2.5
E
-
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0
3
c
8
.
5
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-
0
2
c
1
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3
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0
4
c
1
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-
0
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c
9
.
2
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-
0
4
c
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.
2
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7
c
1.2
E
+
0
2
C
3
.
4
E
-
0
2
C
M1
0
.
1
Nit
r
o
s
o
-
N
-
m
e
t
h
y
l
u
r
e
a
,
N
-
68
4
-
9
3
-
5
1
.
0
E
-
0
3
c
1
.
9
E
-
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0
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0
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c
3
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6
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0
4
c
2
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1
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-
0
4
c
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8
c
5.4
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+
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0
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1
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6
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0
3
I
V
1
Nit
r
o
s
o
-
d
i
-
N
-
b
u
t
y
l
a
m
i
n
e
,
N
-
92
4
-
1
6
-
3
9
.
9
E
-
0
2
c
4
.
6
E
-
0
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c
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8
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-
0
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c
7
.
7
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c
2
.
7
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-
0
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c
5
.
5
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0
6
c
7.0
E
+
0
0
I
2
.
0
E
-
0
3
C
10
.
1
Nit
r
o
s
o
-
d
i
-
N
-
p
r
o
p
y
l
a
m
i
n
e
,
N
-
62
1
-
6
4
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7
7
.
8
E
-
0
2
c
3
.
3
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-
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1
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4
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6
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1
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0
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c
1
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1
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0
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8
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1
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0
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c
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8
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0
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0
4
C
10
.
1
Nit
r
o
s
o
d
i
e
t
h
a
n
o
l
a
m
i
n
e
,
N
-
11
1
6
-
5
4
-
7
1
.
9
E
-
0
1
c
8
.
2
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-
0
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c
3
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5
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0
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0
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c
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.
8
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0
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3
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2
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0
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1
Nit
r
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s
o
d
i
e
t
h
y
l
a
m
i
n
e
,
N
-
5
5
-
1
8
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5
8
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1
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-
0
4
c
1
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5
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2
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8
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0
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-
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6
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4
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0
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-
0
5
X
V
M1
2.4
E
+
0
5
N
i
t
r
o
s
o
d
i
m
e
t
h
y
l
a
m
i
n
e
,
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6
2
-
7
5
-
9
2
.
0
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0
3
c
3
.
4
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c
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2
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8
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8
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1
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1
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0
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c
2
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7
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0
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c
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9
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I
2
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6
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10
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Nit
r
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s
o
d
i
p
h
e
n
y
l
a
m
i
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0
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1
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1
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1
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6
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3
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0
3
C
V
1
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+
0
5
N
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t
r
o
s
o
m
e
t
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y
l
e
t
h
y
l
a
m
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10
5
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1
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c
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1
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10
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1
Nit
r
o
s
o
m
o
r
p
h
o
l
i
n
e
[
N
-
]
5
9
-
8
9
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0
2
c
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10
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1
Nit
r
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o
p
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p
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d
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[
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5
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1
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r
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s
o
p
y
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o
l
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d
i
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N
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2
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1
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1
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0
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4
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4
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10
.
1
Nit
r
o
t
o
l
u
e
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e
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m
-
9
9
-
0
8
-
1
6
.
3
E
+
0
0
n
8
.
2
E
+
0
1
n
1.7E+00
n
1
.
6
E
-
0
3
n
2.
2
E
-
0
1
P
9.0
E
-
0
4
P
V
1
1.5
E
+
0
3
N
i
t
r
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e
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o
-
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2
3
.
2
E
+
0
0
c
*
1
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5
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+
0
1
c
*
3.1E-01
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*
3
.
0
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6
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P
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10
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1
Nit
r
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l
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p
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9
9
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9
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0
3
.
4
E
+
0
1
c
*
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1
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4
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0
2
c
*
4.3E+00
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0
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3
c
*
3.0
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0
4
X
2
.
0
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-
0
2
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V
1
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E
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0
0
N
o
n
a
n
e
,
n
-
1
1
1
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8
4
-
2
1
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1
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+
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1
n
s
7
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2
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+
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1
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s
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n
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5
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n
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2
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10
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1
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r
f
l
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r
a
z
o
n
2
7
3
1
4
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1
3
-
2
2
.
5
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+
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3
n
3
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3
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+
0
4
n
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n
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0
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0
n
3.0
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0
3
I
10
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1
Oc
t
a
b
r
o
m
o
d
i
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e
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y
l
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t
h
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r
3
2
5
3
6
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5
2
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0
1
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9
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0
2
n
2
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5
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+
0
3
n
6.0E+01
n
1
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2
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1
n
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E
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0
2
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1
0
.
0
0
6
Oc
t
a
h
y
d
r
o
-
1
,
3
,
5
,
7
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t
e
t
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n
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t
r
o
-
1
,
3
,
5
,
7
-
t
e
t
r
a
z
o
c
i
n
e
(
H
M
X
)
2
6
9
1
-
4
1
-
0
3
.
9
E
+
0
3
n
5
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7
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+
0
4
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1.0E+03
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3
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0
n
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3
H
10
.
1
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t
a
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5
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6
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9
1
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2
n
1
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+
0
3
n
4.0E+01
n
9
.
6
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3
n
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0
2
I
10
.
1
Or
y
z
a
l
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n
1
9
0
4
4
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8
8
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3
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2
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3
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1
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8.1E+02
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3
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10
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1
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9
6
6
6
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3
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10
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4
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y
f
l
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10
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Pa
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2.3E+02
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u
a
t
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2
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9.0E+01
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3
H
10
.
1
Pa
r
a
t
h
i
o
n
5
6
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8
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2
3
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8
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2
n
4
.
9
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+
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3
n
8.6E+01
n
4
.
3
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-
0
1
n
Pa
g
e
8
o
f
1
3
Re
g
i
o
n
a
l
S
c
r
e
e
n
i
n
g
L
e
v
e
l
(
R
S
L
)
S
u
m
m
a
r
y
T
a
b
l
e
(
T
R
=
1
E
-
0
6
,
H
Q
=
1
)
N
o
v
e
m
b
e
r
2
0
1
5
SF
O
(m
g
/
k
g
-
d
a
y
)
-1
k e y
IU
R
(u
g
/
m
3 )-1
k e y
R f D o
(m
g
/
k
g
-
da
y
)
k e y
Rf
C
i
(m
g
/
m
3 )
k e y
v o l
mu
t
a
-
ge
n
G
I
A
B
S
A
B
S
C sa
t
(m
g
/
k
g
)
A
n
a
l
y
t
e
C
A
S
N
o
.
Re
s
i
d
e
n
t
S
o
i
l
(m
g
/
k
g
)
k
e
y
In
d
u
s
t
r
i
a
l
S
o
i
l
(m
g
/
k
g
)
k
e
y
Re
s
i
d
e
n
t
A
i
r
(u
g
/
m
3 )k
e
y
I n d us
t r i a l
Ai
r
(u
g
/
m
3 )k
e
y
Tapwater (ug/L)
k
e
y
MCL (ug/L)Risk-based SSL (mg/kg)
k
e
y
MCL-based SSL (mg/kg)
Ke
y
:
I
=
I
R
I
S
;
P
=
P
P
R
T
V
;
A
=
A
T
S
D
R
;
C
=
C
a
l
E
P
A
;
X
=
A
P
P
E
N
D
I
X
P
P
R
T
V
S
C
R
E
E
N
(
S
e
e
F
A
Q
#
2
7
)
;
H
=
H
E
A
S
T
;
F
=
S
e
e
F
A
Q
;
J
=
N
e
w
J
e
r
s
ey
;
O
=
E
P
A
O
f
f
i
c
e
o
f
W
a
t
e
r
;
E
=
s
e
e
u
s
e
r
g
u
i
d
e
S
e
c
t
i
o
n
2
.
3
.
5
;
L
=
s
e
e
u
s
e
r
g
u
i
d
e
o
n
l
e
a
d
;
M
=
m
u
t
a
g
e
n
;
S
=
s
e
e
u
s
e
r
g
u
i
d
e
S
e
c
t
io
n
5
;
V
=
v
o
l
a
t
i
l
e
;
R
=
R
B
A
a
p
p
l
i
e
d
(
S
e
e
U
s
e
r
G
u
i
d
e
f
o
r
A
r
s
e
n
i
c
n
o
t
i
c
e
)
;
c =
c
a
n
c
e
r
;
n
=
n
o
n
c
a
n
c
e
r
;
*
=
w
h
e
r
e
:
n
S
L
<
1
0
0
X
c
S
L
;
*
*
=
w
h
e
r
e
n
S
L
<
1
0
X
c
S
L
;
S
S
L
v
a
l
u
e
s
a
r
e
b
a
s
e
d
o
n
D
A
F
=
1
;
m
=
C
o
n
c
e
n
t
r
ati
o
n
m
a
y
e
x
c
e
e
d
c
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n
4.9
E
+
0
1
P
1
~M
o
n
o
m
a
g
n
e
s
i
u
m
p
h
o
s
p
h
a
t
e
7
7
5
7
-
8
6
-
0
3
.
8
E
+
0
6
n
m
5
.
7
E
+
0
7
n
m
9.7E+05
n
n
4.9
E
+
0
1
P
1
~M
o
n
o
p
o
t
a
s
s
i
u
m
p
h
o
s
p
h
a
t
e
7
7
7
8
-
7
7
-
0
3
.
8
E
+
0
6
n
m
5
.
7
E
+
0
7
n
m
9.7E+05
n
n
4.9
E
+
0
1
P
1
~M
o
n
o
s
o
d
i
u
m
p
h
o
s
p
h
a
t
e
75
5
8
-
8
0
-
7
3
.
8
E
+
0
6
n
m
5
.
7
E
+
0
7
n
m
9.7E+05
n
n
4.9
E
+
0
1
P
1
~P
o
l
y
p
h
o
s
p
h
o
r
i
c
a
c
i
d
8
0
1
7
-
1
6
-
1
3
.
8
E
+
0
6
n
m
5
.
7
E
+
0
7
n
m
9.7E+05
n
n
4.9
E
+
0
1
P
1
~P
o
t
a
s
s
i
u
m
t
r
i
p
o
l
y
p
h
o
s
p
h
a
t
e
1
3
8
4
5
-
3
6
-
8
3
.
8
E
+
0
6
n
m
5
.
7
E
+
0
7
n
m
9.7E+05
n
n
4.9
E
+
0
1
P
1
~S
o
d
i
u
m
a
c
i
d
p
y
r
o
p
h
o
s
p
h
a
t
e
7
7
5
8
-
1
6
-
9
3
.
8
E
+
0
6
n
m
5
.
7
E
+
0
7
n
m
9.7E+05
n
n
4.9
E
+
0
1
P
1
~S
o
d
i
u
m
a
l
u
m
i
n
u
m
p
h
o
s
p
h
a
t
e
(
a
c
i
d
i
c
)
7
7
8
5
-
8
8
-
8
3
.
8
E
+
0
6
n
m
5
.
7
E
+
0
7
n
m
9.7E+05
n
n
4.9
E
+
0
1
P
1
~S
o
d
i
u
m
a
l
u
m
i
n
u
m
p
h
o
s
p
h
a
t
e
(
a
n
h
y
d
r
o
u
s
)
1
0
2
7
9
-
5
9
-
1
3
.
8
E
+
0
6
n
m
5
.
7
E
+
0
7
n
m
9.7E+05
n
n
4.9
E
+
0
1
P
1
~S
o
d
i
u
m
a
l
u
m
i
n
u
m
p
h
o
s
p
h
a
t
e
(
t
e
t
r
a
h
y
d
r
a
t
e
)
1
0
3
0
5
-
7
6
-
7
3
.
8
E
+
0
6
n
m
5
.
7
E
+
0
7
n
m
9.7E+05
n
n
4.9
E
+
0
1
P
1
~S
o
d
i
u
m
h
e
x
a
m
e
t
a
p
h
o
s
p
h
a
t
e
1
0
1
2
4
-
5
6
-
8
3
.
8
E
+
0
6
n
m
5
.
7
E
+
0
7
n
m
9.7E+05
n
n
4.9
E
+
0
1
P
1
~S
o
d
i
u
m
p
o
l
y
p
h
o
s
p
h
a
t
e
6
8
9
1
5
-
3
1
-
1
3
.
8
E
+
0
6
n
m
5
.
7
E
+
0
7
n
m
9.7E+05
n
n
4.9
E
+
0
1
P
1
~S
o
d
i
u
m
t
r
i
m
e
t
a
p
h
o
s
p
h
a
t
e
7
7
8
5
-
8
4
-
4
3
.
8
E
+
0
6
n
m
5
.
7
E
+
0
7
n
m
9.7E+05
n
n
4.9
E
+
0
1
P
1
~S
o
d
i
u
m
t
r
i
p
o
l
y
p
h
o
s
p
h
a
t
e
7
7
5
8
-
2
9
-
4
3
.
8
E
+
0
6
n
m
5
.
7
E
+
0
7
n
m
9.7E+05
n
n
4.9
E
+
0
1
P
1
~T
e
t
r
a
p
o
t
a
s
s
i
u
m
p
h
o
s
p
h
a
t
e
7
3
2
0
-
3
4
-
5
3
.
8
E
+
0
6
n
m
5
.
7
E
+
0
7
n
m
9.7E+05
n
n
4.9
E
+
0
1
P
1
~T
e
t
r
a
s
o
d
i
u
m
p
y
r
o
p
h
o
s
p
h
a
t
e
7
7
2
2
-
8
8
-
5
3
.
8
E
+
0
6
n
m
5
.
7
E
+
0
7
n
m
9.7E+05
n
n
4.9
E
+
0
1
P
1
~T
r
i
a
l
u
m
i
n
u
m
s
o
d
i
u
m
t
e
t
r
a
d
e
c
a
h
y
d
r
o
g
e
n
o
c
t
a
o
r
t
h
o
p
h
o
s
p
h
a
t
e
(
d
i
h
y
d
r
a
t
e
)
1
5
1
3
6
-
8
7
-
5
3
.
8
E
+
0
6
n
m
5
.
7
E
+
0
7
n
m
9.7E+05
n
n
4.9
E
+
0
1
P
1
~T
r
i
c
a
l
c
i
u
m
p
h
o
s
p
h
a
t
e
7
7
5
8
-
8
7
-
4
3
.
8
E
+
0
6
n
m
5
.
7
E
+
0
7
n
m
9.7E+05
n
n
4.9
E
+
0
1
P
1
~T
r
i
m
a
g
n
e
s
i
u
m
p
h
o
s
p
h
a
t
e
7
7
5
7
-
8
7
-
1
3
.
8
E
+
0
6
n
m
5
.
7
E
+
0
7
n
m
9.7E+05
n
n
4.9
E
+
0
1
P
1
~T
r
i
p
o
t
a
s
s
i
u
m
p
h
o
s
p
h
a
t
e
7
7
7
8
-
5
3
-
2
3
.
8
E
+
0
6
n
m
5
.
7
E
+
0
7
n
m
9.7E+05
n
n
4.9
E
+
0
1
P
1
~T
r
i
s
o
d
i
u
m
p
h
o
s
p
h
a
t
e
7
6
0
1
-
5
4
-
9
3
.
8
E
+
0
6
n
m
5
.
7
E
+
0
7
n
m
9.7E+05
n
n
3.0
E
-
0
4
I
3
.
0
E
-
0
4
I
V
1
Ph
o
s
p
h
i
n
e
7
8
0
3
-
5
1
-
2
2
.
3
E
+
0
1
n
3
.
5
E
+
0
2
n
3
.
1
E
-
0
1
n
1
.
3
E
+
0
0
n
5
.
7
E
-
0
1
n
n
4.9
E
+
0
1
P
1
.
0
E
-
0
2
I
1
Ph
o
s
p
h
o
r
i
c
A
c
i
d
7
6
6
4
-
3
8
-
2
3
.
0
E
+
0
6
n
m
2
.
9
E
+
0
7
n
m
1
.
0
E
+
0
1
n
4
.
4
E
+
0
1
n
9
.
7
E
+
0
5
n
n
2.0
E
-
0
5
I
V
1
Ph
o
s
p
h
o
r
u
s
,
W
h
i
t
e
7
7
2
3
-
1
4
-
0
1
.
6
E
+
0
0
n
2
.
3
E
+
0
1
n
4.0E-01
n
1
.
5
E
-
0
3
n
Ph
t
h
a
l
a
t
e
s
Pa
g
e
9
o
f
1
3
Re
g
i
o
n
a
l
S
c
r
e
e
n
i
n
g
L
e
v
e
l
(
R
S
L
)
S
u
m
m
a
r
y
T
a
b
l
e
(
T
R
=
1
E
-
0
6
,
H
Q
=
1
)
N
o
v
e
m
b
e
r
2
0
1
5
SF
O
(m
g
/
k
g
-
d
a
y
)
-1
k e y
IU
R
(u
g
/
m
3 )-1
k e y
R f D o
(m
g
/
k
g
-
da
y
)
k e y
Rf
C
i
(m
g
/
m
3 )
k e y
v o l
mu
t
a
-
ge
n
G
I
A
B
S
A
B
S
C sa
t
(m
g
/
k
g
)
A
n
a
l
y
t
e
C
A
S
N
o
.
Re
s
i
d
e
n
t
S
o
i
l
(m
g
/
k
g
)
k
e
y
In
d
u
s
t
r
i
a
l
S
o
i
l
(m
g
/
k
g
)
k
e
y
Re
s
i
d
e
n
t
A
i
r
(u
g
/
m
3 )k
e
y
I n d us
t r i a l
Ai
r
(u
g
/
m
3 )k
e
y
Tapwater (ug/L)
k
e
y
MCL (ug/L)Risk-based SSL (mg/kg)
k
e
y
MCL-based SSL (mg/kg)
Ke
y
:
I
=
I
R
I
S
;
P
=
P
P
R
T
V
;
A
=
A
T
S
D
R
;
C
=
C
a
l
E
P
A
;
X
=
A
P
P
E
N
D
I
X
P
P
R
T
V
S
C
R
E
E
N
(
S
e
e
F
A
Q
#
2
7
)
;
H
=
H
E
A
S
T
;
F
=
S
e
e
F
A
Q
;
J
=
N
e
w
J
e
r
s
ey
;
O
=
E
P
A
O
f
f
i
c
e
o
f
W
a
t
e
r
;
E
=
s
e
e
u
s
e
r
g
u
i
d
e
S
e
c
t
i
o
n
2
.
3
.
5
;
L
=
s
e
e
u
s
e
r
g
u
i
d
e
o
n
l
e
a
d
;
M
=
m
u
t
a
g
e
n
;
S
=
s
e
e
u
s
e
r
g
u
i
d
e
S
e
c
t
io
n
5
;
V
=
v
o
l
a
t
i
l
e
;
R
=
R
B
A
a
p
p
l
i
e
d
(
S
e
e
U
s
e
r
G
u
i
d
e
f
o
r
A
r
s
e
n
i
c
n
o
t
i
c
e
)
;
c =
c
a
n
c
e
r
;
n
=
n
o
n
c
a
n
c
e
r
;
*
=
w
h
e
r
e
:
n
S
L
<
1
0
0
X
c
S
L
;
*
*
=
w
h
e
r
e
n
S
L
<
1
0
X
c
S
L
;
S
S
L
v
a
l
u
e
s
a
r
e
b
a
s
e
d
o
n
D
A
F
=
1
;
m
=
C
o
n
c
e
n
t
r
ati
o
n
m
a
y
e
x
c
e
e
d
c
e
i
l
i
n
g
l
i
m
i
t
(
S
e
e
U
s
e
r
G
u
i
d
e
)
;
s
=
C
o
n
c
e
n
t
r
a
t
i
o
n
m
a
y
e
x
c
e
e
d
C
s
a
t
(
S
e
e
U
s
e
r
G
u
i
d
e
)
To
x
i
c
i
t
y
a
n
d
C
h
e
m
i
c
a
l
-
s
p
e
c
i
f
i
c
I
n
f
o
r
m
a
t
i
o
n
C
o
n
t
a
m
i
n
a
n
t
Sc
r
e
e
n
i
n
g
L
e
v
e
l
s
P
r
o
t
e
c
t
i
o
n
o
f
G
r
o
u
n
d
W
a
t
e
r
S
S
L
s
1.
4
E
-
0
2
I
2
.
4
E
-
0
6
C
2
.
0
E
-
0
2
I
10
.
1
~B
i
s
(
2
-
e
t
h
y
l
h
e
x
y
l
)
p
h
t
h
a
l
a
t
e
1
1
7
-
8
1
-
7
3
.
9
E
+
0
1
c
*
1
.
6
E
+
0
2
c
1
.
2
E
+
0
0
c
5
.
1
E
+
0
0
c
5
.
6
E
+
0
0
c
*
6
.
0
E
+
0
0
1
.
3
E
+
0
0
c
*
1
.
4
E
+
0
0
1.0
E
+
0
0
I
10
.
1
~B
u
t
y
l
p
h
t
h
a
l
y
l
B
u
t
y
l
g
l
y
c
o
l
a
t
e
8
5
-
7
0
-
1
6
.
3
E
+
0
4
n
8
.
2
E
+
0
5
n
m
1.3E+04
n
3
.
1
E
+
0
2
n
1.0
E
-
0
1
I
10
.
1
~D
i
b
u
t
y
l
P
h
t
h
a
l
a
t
e
8
4
-
7
4
-
2
6
.
3
E
+
0
3
n
8
.
2
E
+
0
4
n
9.0E+02
n
2
.
3
E
+
0
0
n
8.0
E
-
0
1
I
10
.
1
~D
i
e
t
h
y
l
P
h
t
h
a
l
a
t
e
8
4
-
6
6
-
2
5
.
1
E
+
0
4
n
6
.
6
E
+
0
5
n
m
1.5E+04
n
6
.
1
E
+
0
0
n
1.0
E
-
0
1
I
V
1
~D
i
m
e
t
h
y
l
t
e
r
e
p
h
t
h
a
l
a
t
e
1
2
0
-
6
1
-
6
7
.
8
E
+
0
3
n
1
.
2
E
+
0
5
n
m
1.9E+03
n
4
.
9
E
-
0
1
n
1.0
E
-
0
2
P
10
.
1
~O
c
t
y
l
P
h
t
h
a
l
a
t
e
,
d
i
-
N
-
1
1
7
-
8
4
-
0
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1
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SF
O
(m
g
/
k
g
-
d
a
y
)
-1
k e y
IU
R
(u
g
/
m
3 )-1
k e y
R f D o
(m
g
/
k
g
-
da
y
)
k e y
Rf
C
i
(m
g
/
m
3 )
k e y
v o l
mu
t
a
-
ge
n
G
I
A
B
S
A
B
S
C sa
t
(m
g
/
k
g
)
A
n
a
l
y
t
e
C
A
S
N
o
.
Re
s
i
d
e
n
t
S
o
i
l
(m
g
/
k
g
)
k
e
y
In
d
u
s
t
r
i
a
l
S
o
i
l
(m
g
/
k
g
)
k
e
y
Re
s
i
d
e
n
t
A
i
r
(u
g
/
m
3 )k
e
y
I n d us
t r i a l
Ai
r
(u
g
/
m
3 )k
e
y
Tapwater (ug/L)
k
e
y
MCL (ug/L)Risk-based SSL (mg/kg)
k
e
y
MCL-based SSL (mg/kg)
Ke
y
:
I
=
I
R
I
S
;
P
=
P
P
R
T
V
;
A
=
A
T
S
D
R
;
C
=
C
a
l
E
P
A
;
X
=
A
P
P
E
N
D
I
X
P
P
R
T
V
S
C
R
E
E
N
(
S
e
e
F
A
Q
#
2
7
)
;
H
=
H
E
A
S
T
;
F
=
S
e
e
F
A
Q
;
J
=
N
e
w
J
e
r
s
ey
;
O
=
E
P
A
O
f
f
i
c
e
o
f
W
a
t
e
r
;
E
=
s
e
e
u
s
e
r
g
u
i
d
e
S
e
c
t
i
o
n
2
.
3
.
5
;
L
=
s
e
e
u
s
e
r
g
u
i
d
e
o
n
l
e
a
d
;
M
=
m
u
t
a
g
e
n
;
S
=
s
e
e
u
s
e
r
g
u
i
d
e
S
e
c
t
io
n
5
;
V
=
v
o
l
a
t
i
l
e
;
R
=
R
B
A
a
p
p
l
i
e
d
(
S
e
e
U
s
e
r
G
u
i
d
e
f
o
r
A
r
s
e
n
i
c
n
o
t
i
c
e
)
;
c =
c
a
n
c
e
r
;
n
=
n
o
n
c
a
n
c
e
r
;
*
=
w
h
e
r
e
:
n
S
L
<
1
0
0
X
c
S
L
;
*
*
=
w
h
e
r
e
n
S
L
<
1
0
X
c
S
L
;
S
S
L
v
a
l
u
e
s
a
r
e
b
a
s
e
d
o
n
D
A
F
=
1
;
m
=
C
o
n
c
e
n
t
r
ati
o
n
m
a
y
e
x
c
e
e
d
c
e
i
l
i
n
g
l
i
m
i
t
(
S
e
e
U
s
e
r
G
u
i
d
e
)
;
s
=
C
o
n
c
e
n
t
r
a
t
i
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n
m
a
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e
x
c
e
e
d
C
s
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t
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U
s
e
r
G
u
i
d
e
)
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y
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d
C
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e
m
i
c
a
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-
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p
e
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a
t
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o
n
C
o
n
t
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m
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n
a
n
t
Sc
r
e
e
n
i
n
g
L
e
v
e
l
s
P
r
o
t
e
c
t
i
o
n
o
f
G
r
o
u
n
d
W
a
t
e
r
S
S
L
s
4.0
E
-
0
3
I
10
.
1
Pr
o
p
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d
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,
1
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2
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6
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2
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5
E
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3
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3
E
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n
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n
2
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10
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10
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5
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1
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3
E
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V
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10
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p
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3
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a
m
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1
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4
n
3.5E+02
n
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10
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Pr
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p
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n
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0
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n
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E
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n
2.1E+02
n
6
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9
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n
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3
I
V
1
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E
+
0
4
P
r
o
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l
d
e
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y
d
e
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2
3
-
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8
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7
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5
E
+
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1
n
3
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1
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n
8
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3
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0
n
3
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5
E
+
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1
n
1
.
7
E
+
0
1
n
3
.
4
E
-
0
3
n
1.0
E
-
0
1
X
1
.
0
E
+
0
0
X
V
1
2.6
E
+
0
2
P
r
o
p
y
l
b
e
n
z
e
n
e
1
0
3
-
6
5
-
1
3
.
8
E
+
0
3
n
s
2
.
4
E
+
0
4
n
s
1
.
0
E
+
0
3
n
4
.
4
E
+
0
3
n
6
.
6
E
+
0
2
n
1
.
2
E
+
0
0
n
3.
0
E
+
0
0
C
V
1
3.5
E
+
0
2
P
r
o
p
y
l
e
n
e
1
1
5
-
0
7
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1
2
.
2
E
+
0
3
n
s
9
.
3
E
+
0
3
n
s
3
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1
E
+
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3
n
1
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3
E
+
0
4
n
6
.
3
E
+
0
3
n
6
.
0
E
+
0
0
n
2.0
E
+
0
1
P
10
.
1
Pr
o
p
y
l
e
n
e
G
l
y
c
o
l
5
7
-
5
5
-
6
1
.
3
E
+
0
6
n
m
1
.
6
E
+
0
7
n
m
4.0E+05
n
8
.
1
E
+
0
1
n
2.7
E
-
0
4
A
1
0
.
1
Pr
o
p
y
l
e
n
e
G
l
y
c
o
l
D
i
n
i
t
r
a
t
e
6
4
2
3
-
4
3
-
4
3
.
9
E
+
0
5
n
m
1
.
6
E
+
0
6
n
m
2
.
8
E
-
0
1
n
1
.
2
E
+
0
0
n
7.0
E
-
0
1
H
2
.
0
E
+
0
0
I
V
1
1.1
E
+
0
5
P
r
o
p
y
l
e
n
e
G
l
y
c
o
l
M
o
n
o
m
e
t
h
y
l
E
t
h
e
r
1
0
7
-
9
8
-
2
4
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1
E
+
0
4
n
3
.
7
E
+
0
5
n
m
s
2
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1
E
+
0
3
n
8
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8
E
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0
3
n
3
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2
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0
3
n
6
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5
E
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1
n
2.
4
E
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1
I
3
.
7
E
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6
I
3.0
E
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2
I
V
1
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E
+
0
4
P
r
o
p
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e
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x
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d
e
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5
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5
6
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2
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1
E
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0
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9
.
7
E
+
0
0
c
7
.
6
E
-
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1
c
*
3
.
3
E
+
0
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c
*
2
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7
E
-
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1
c
5
.
6
E
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5
c
7.5
E
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2
I
10
.
1
Pr
o
p
y
z
a
m
i
d
e
2
3
9
5
0
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5
8
-
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4
.
7
E
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3
n
6
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2
E
+
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4
n
1.2E+03
n
1
.
2
E
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0
n
1.0
E
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3
I
V
1
5.3
E
+
0
5
P
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r
i
d
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n
e
1
1
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8
6
-
1
7
.
8
E
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1
n
1
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2
E
+
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3
n
2.0E+01
n
6
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n
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4
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10
.
1
Qu
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n
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l
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s
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3
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2
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n
4
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1
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5.1E+00
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10
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1
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1
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2
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1
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7
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c
2.4E-02
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7
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c
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10
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3 )-1
k e y
R f D o
(m
g
/
k
g
-
da
y
)
k e y
Rf
C
i
(m
g
/
m
3 )
k e y
v o l
mu
t
a
-
ge
n
G
I
A
B
S
A
B
S
C sa
t
(m
g
/
k
g
)
A
n
a
l
y
t
e
C
A
S
N
o
.
Re
s
i
d
e
n
t
S
o
i
l
(m
g
/
k
g
)
k
e
y
In
d
u
s
t
r
i
a
l
S
o
i
l
(m
g
/
k
g
)
k
e
y
Re
s
i
d
e
n
t
A
i
r
(u
g
/
m
3 )k
e
y
I n d us
t r i a l
Ai
r
(u
g
/
m
3 )k
e
y
Tapwater (ug/L)
k
e
y
MCL (ug/L)Risk-based SSL (mg/kg)
k
e
y
MCL-based SSL (mg/kg)
Ke
y
:
I
=
I
R
I
S
;
P
=
P
P
R
T
V
;
A
=
A
T
S
D
R
;
C
=
C
a
l
E
P
A
;
X
=
A
P
P
E
N
D
I
X
P
P
R
T
V
S
C
R
E
E
N
(
S
e
e
F
A
Q
#
2
7
)
;
H
=
H
E
A
S
T
;
F
=
S
e
e
F
A
Q
;
J
=
N
e
w
J
e
r
s
ey
;
O
=
E
P
A
O
f
f
i
c
e
o
f
W
a
t
e
r
;
E
=
s
e
e
u
s
e
r
g
u
i
d
e
S
e
c
t
i
o
n
2
.
3
.
5
;
L
=
s
e
e
u
s
e
r
g
u
i
d
e
o
n
l
e
a
d
;
M
=
m
u
t
a
g
e
n
;
S
=
s
e
e
u
s
e
r
g
u
i
d
e
S
e
c
t
io
n
5
;
V
=
v
o
l
a
t
i
l
e
;
R
=
R
B
A
a
p
p
l
i
e
d
(
S
e
e
U
s
e
r
G
u
i
d
e
f
o
r
A
r
s
e
n
i
c
n
o
t
i
c
e
)
;
c =
c
a
n
c
e
r
;
n
=
n
o
n
c
a
n
c
e
r
;
*
=
w
h
e
r
e
:
n
S
L
<
1
0
0
X
c
S
L
;
*
*
=
w
h
e
r
e
n
S
L
<
1
0
X
c
S
L
;
S
S
L
v
a
l
u
e
s
a
r
e
b
a
s
e
d
o
n
D
A
F
=
1
;
m
=
C
o
n
c
e
n
t
r
ati
o
n
m
a
y
e
x
c
e
e
d
c
e
i
l
i
n
g
l
i
m
i
t
(
S
e
e
U
s
e
r
G
u
i
d
e
)
;
s
=
C
o
n
c
e
n
t
r
a
t
i
o
n
m
a
y
e
x
c
e
e
d
C
s
a
t
(
S
e
e
U
s
e
r
G
u
i
d
e
)
To
x
i
c
i
t
y
a
n
d
C
h
e
m
i
c
a
l
-
s
p
e
c
i
f
i
c
I
n
f
o
r
m
a
t
i
o
n
C
o
n
t
a
m
i
n
a
n
t
Sc
r
e
e
n
i
n
g
L
e
v
e
l
s
P
r
o
t
e
c
t
i
o
n
o
f
G
r
o
u
n
d
W
a
t
e
r
S
S
L
s
8.
0
E
+
0
1
I
V
1
2.1
E
+
0
3
T
e
t
r
a
f
l
u
o
r
o
e
t
h
a
n
e
,
1
,
1
,
1
,
2
-
8
1
1
-
9
7
-
2
1
.
0
E
+
0
5
n
m
s
4
.
3
E
+
0
5
n
m
s
8
.
3
E
+
0
4
n
3
.
5
E
+
0
5
n
1
.
7
E
+
0
5
n
9
.
3
E
+
0
1
n
2.0
E
-
0
3
P
1
0
.
0
0
0
7
Te
t
r
y
l
(
T
r
i
n
i
t
r
o
p
h
e
n
y
l
m
e
t
h
y
l
n
i
t
r
a
m
i
n
e
)
4
7
9
-
4
5
-
8
1
.
6
E
+
0
2
n
2
.
3
E
+
0
3
n
3.9E+01
n
3
.
7
E
-
0
1
n
7.0
E
-
0
6
X
1
Th
a
l
l
i
u
m
(
I
)
N
i
t
r
a
t
e
1
0
1
0
2
-
4
5
-
1
5
.
5
E
-
0
1
n
8
.
2
E
+
0
0
n
1.4E-01
n
n
1.0
E
-
0
5
X
1
Th
a
l
l
i
u
m
(
S
o
l
u
b
l
e
S
a
l
t
s
)
7
4
4
0
-
2
8
-
0
7
.
8
E
-
0
1
n
1
.
2
E
+
0
1
n
2.0E-01
n
2
.
0
E
+
0
0
1
.
4
E
-
0
2
n
1
.
4
E
-
0
1
6.0
E
-
0
6
X
V
1
Th
a
l
l
i
u
m
A
c
e
t
a
t
e
5
6
3
-
6
8
-
8
4
.
7
E
-
0
1
n
7
.
0
E
+
0
0
n
1.2E-01
n
n
2.0
E
-
0
5
X
V
1
Th
a
l
l
i
u
m
C
a
r
b
o
n
a
t
e
6
5
3
3
-
7
3
-
9
1
.
6
E
+
0
0
n
2
.
3
E
+
0
1
n
4.0E-01
n
n
6.0
E
-
0
6
X
1
Th
a
l
l
i
u
m
C
h
l
o
r
i
d
e
7
7
9
1
-
1
2
-
0
4
.
7
E
-
0
1
n
7
.
0
E
+
0
0
n
1.2E-01
n
n
2.0
E
-
0
5
X
1
Th
a
l
l
i
u
m
S
u
l
f
a
t
e
7
4
4
6
-
1
8
-
6
1
.
6
E
+
0
0
n
2
.
3
E
+
0
1
n
4.0E-01
n
n
1.3
E
-
0
2
I
10
.
1
Th
i
f
e
n
s
u
l
f
u
r
o
n
-
m
e
t
h
y
l
7
9
2
7
7
-
2
7
-
3
8
.
2
E
+
0
2
n
1
.
1
E
+
0
4
n
2.6E+02
n
7
.
8
E
-
0
2
n
1.0
E
-
0
2
I
10
.
1
Th
i
o
b
e
n
c
a
r
b
2
8
2
4
9
-
7
7
-
6
6
.
3
E
+
0
2
n
8
.
2
E
+
0
3
n
1.6E+02
n
5
.
5
E
-
0
1
n
7.0
E
-
0
2
X
1
0
.
0
0
7
5
Th
i
o
d
i
g
l
y
c
o
l
1
1
1
-
4
8
-
8
5
.
4
E
+
0
3
n
7
.
9
E
+
0
4
n
1.4E+03
n
2
.
8
E
-
0
1
n
3.0
E
-
0
4
H
10
.
1
Th
i
o
f
a
n
o
x
3
9
1
9
6
-
1
8
-
4
1
.
9
E
+
0
1
n
2
.
5
E
+
0
2
n
5.3E+00
n
1
.
8
E
-
0
3
n
8.0
E
-
0
2
I
10
.
1
Th
i
o
p
h
a
n
a
t
e
,
M
e
t
h
y
l
2
3
5
6
4
-
0
5
-
8
5
.
1
E
+
0
3
n
6
.
6
E
+
0
4
n
1.6E+03
n
1
.
4
E
+
0
0
n
5.0
E
-
0
3
I
10
.
1
Th
i
r
a
m
1
3
7
-
2
6
-
8
3
.
2
E
+
0
2
n
4
.
1
E
+
0
3
n
9.8E+01
n
1
.
4
E
-
0
1
n
6.0
E
-
0
1
H
1
Tin
74
4
0
-
3
1
-
5
4
.
7
E
+
0
4
n
7
.
0
E
+
0
5
n
m
1.2E+04
n
3
.
0
E
+
0
3
n
1.0
E
-
0
4
A
V
1
Tit
a
n
i
u
m
T
e
t
r
a
c
h
l
o
r
i
d
e
7
5
5
0
-
4
5
-
0
1
.
4
E
+
0
5
n
m
6
.
0
E
+
0
5
n
m
1
.
0
E
-
0
1
n
4
.
4
E
-
0
1
n
2
.
1
E
-
0
1
n
n
8.0
E
-
0
2
I
5
.
0
E
+
0
0
I
V
1
8.2
E
+
0
2
T
o
l
u
e
n
e
1
0
8
-
8
8
-
3
4
.
9
E
+
0
3
n
s
4
.
7
E
+
0
4
n
s
5
.
2
E
+
0
3
n
2
.
2
E
+
0
4
n
1
.
1
E
+
0
3
n
1
.
0
E
+
0
3
7
.
6
E
-
0
1
n
6
.
9
E
-
0
1
1.
8
E
-
0
1
X
2.0
E
-
0
4
X
10
.
1
To
l
u
e
n
e
-
2
,
5
-
d
i
a
m
i
n
e
9
5
-
7
0
-
5
3
.
0
E
+
0
0
c
*
*
1
.
3
E
+
0
1
c
*
4.3E-01
c
*
*
1
.
3
E
-
0
4
c
*
*
3.
0
E
-
0
2
P
4.0
E
-
0
3
X
10
.
1
To
l
u
i
d
i
n
e
,
p
-
1
0
6
-
4
9
-
0
1
.
8
E
+
0
1
c
*
7
.
7
E
+
0
1
c
*
2.5E+00
c
*
1
.
1
E
-
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3
c
*
3.0
E
+
0
0
P
V
1
3.
4
E
-
0
1
T
o
t
a
l
P
e
t
r
o
l
e
u
m
H
y
d
r
o
c
a
r
b
o
n
s
(
A
l
i
p
h
a
t
i
c
H
i
g
h
)
N
A
2
.
3
E
+
0
5
n
m
s
3
.
5
E
+
0
6
n
m
s
6.0E+04
n
2
.
4
E
+
0
3
n
6.0
E
-
0
1
P
V
1
1.4
E
+
0
2
T
o
t
a
l
P
e
t
r
o
l
e
u
m
H
y
d
r
o
c
a
r
b
o
n
s
(
A
l
i
p
h
a
t
i
c
L
o
w
)
N
A
5
.
2
E
+
0
2
n
s
2
.
2
E
+
0
3
n
s
6
.
3
E
+
0
2
n
2
.
6
E
+
0
3
n
1
.
3
E
+
0
3
n
8
.
8
E
+
0
0
n
1.0
E
-
0
2
X
1
.
0
E
-
0
1
P
V
1
6.9
E
+
0
0
T
o
t
a
l
P
e
t
r
o
l
e
u
m
H
y
d
r
o
c
a
r
b
o
n
s
(
A
l
i
p
h
a
t
i
c
M
e
d
i
u
m
)
N
A
9
.
6
E
+
0
1
n
s
4
.
4
E
+
0
2
n
s
1
.
0
E
+
0
2
n
4
.
4
E
+
0
2
n
1
.
0
E
+
0
2
n
1
.
5
E
+
0
0
n
4.0
E
-
0
2
P
10
.
1
To
t
a
l
P
e
t
r
o
l
e
u
m
H
y
d
r
o
c
a
r
b
o
n
s
(
A
r
o
m
a
t
i
c
H
i
g
h
)
N
A
2
.
5
E
+
0
3
n
3
.
3
E
+
0
4
n
8.0E+02
n
8
.
9
E
+
0
1
n
4.0
E
-
0
3
P
3
.
0
E
-
0
2
P
V
1
1.8
E
+
0
3
T
o
t
a
l
P
e
t
r
o
l
e
u
m
H
y
d
r
o
c
a
r
b
o
n
s
(
A
r
o
m
a
t
i
c
L
o
w
)
N
A
8
.
2
E
+
0
1
n
4
.
2
E
+
0
2
n
3
.
1
E
+
0
1
n
1
.
3
E
+
0
2
n
3
.
3
E
+
0
1
n
1
.
7
E
-
0
2
n
4.0
E
-
0
3
P
3
.
0
E
-
0
3
P
V
1
To
t
a
l
P
e
t
r
o
l
e
u
m
H
y
d
r
o
c
a
r
b
o
n
s
(
A
r
o
m
a
t
i
c
M
e
d
i
u
m
)
N
A
1
.
1
E
+
0
2
n
6
.
0
E
+
0
2
n
3
.
1
E
+
0
0
n
1
.
3
E
+
0
1
n
5
.
5
E
+
0
0
n
2
.
3
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0
2
n
1.1
E
+
0
0
I
3
.
2
E
-
0
4
I
10
.
1
To
x
a
p
h
e
n
e
8
0
0
1
-
3
5
-
2
4
.
9
E
-
0
1
c
2
.
1
E
+
0
0
c
8
.
8
E
-
0
3
c
3
.
8
E
-
0
2
c
7
.
1
E
-
0
2
c
3
.
0
E
+
0
0
1
.
1
E
-
0
2
c
4
.
6
E
-
0
1
7.5
E
-
0
3
I
10
.
1
Tr
a
l
o
m
e
t
h
r
i
n
6
6
8
4
1
-
2
5
-
6
4
.
7
E
+
0
2
n
6
.
2
E
+
0
3
n
1.5E+02
n
5
.
8
E
+
0
1
n
3.0
E
-
0
4
A
V
1
Tr
i
-
n
-
b
u
t
y
l
t
i
n
6
8
8
-
7
3
-
3
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r
i
m
e
t
h
y
l
b
e
n
z
e
n
e
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,
2
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3
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2
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3
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8
4
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9
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n
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1
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2
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+
0
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n
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2
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0
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n
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0
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n
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5
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-
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2
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7.0
E
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0
3
P
V
1
2.2
E
+
0
2
T
r
i
m
e
t
h
y
l
b
e
n
z
e
n
e
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1
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2
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4
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9
5
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6
5
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8
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n
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4
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+
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n
s
7
.
3
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n
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1
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5
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n
2
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2
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V
1
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+
0
2
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r
i
m
e
t
h
y
l
b
e
n
z
e
n
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7
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8
7
.
8
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+
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2
n
s
1
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2
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s
1.2E+02
n
1
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7
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n
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0
2
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V
1
3.0
E
+
0
1
T
r
i
m
e
t
h
y
l
p
e
n
t
e
n
e
,
2
,
4
,
4
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2
5
1
6
7
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7
0
-
8
7
.
8
E
+
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2
n
s
1
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2
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+
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4
n
s
6.5E+01
n
2
.
2
E
-
0
1
n
Pa
g
e
1
2
o
f
1
3
Re
g
i
o
n
a
l
S
c
r
e
e
n
i
n
g
L
e
v
e
l
(
R
S
L
)
S
u
m
m
a
r
y
T
a
b
l
e
(
T
R
=
1
E
-
0
6
,
H
Q
=
1
)
N
o
v
e
m
b
e
r
2
0
1
5
SF
O
(m
g
/
k
g
-
d
a
y
)
-1
k e y
IU
R
(u
g
/
m
3 )-1
k e y
R f D o
(m
g
/
k
g
-
da
y
)
k e y
Rf
C
i
(m
g
/
m
3 )
k e y
v o l
mu
t
a
-
ge
n
G
I
A
B
S
A
B
S
C sa
t
(m
g
/
k
g
)
A
n
a
l
y
t
e
C
A
S
N
o
.
Re
s
i
d
e
n
t
S
o
i
l
(m
g
/
k
g
)
k
e
y
In
d
u
s
t
r
i
a
l
S
o
i
l
(m
g
/
k
g
)
k
e
y
Re
s
i
d
e
n
t
A
i
r
(u
g
/
m
3 )k
e
y
I n d us
t r i a l
Ai
r
(u
g
/
m
3 )k
e
y
Tapwater (ug/L)
k
e
y
MCL (ug/L)Risk-based SSL (mg/kg)
k
e
y
MCL-based SSL (mg/kg)
Ke
y
:
I
=
I
R
I
S
;
P
=
P
P
R
T
V
;
A
=
A
T
S
D
R
;
C
=
C
a
l
E
P
A
;
X
=
A
P
P
E
N
D
I
X
P
P
R
T
V
S
C
R
E
E
N
(
S
e
e
F
A
Q
#
2
7
)
;
H
=
H
E
A
S
T
;
F
=
S
e
e
F
A
Q
;
J
=
N
e
w
J
e
r
s
ey
;
O
=
E
P
A
O
f
f
i
c
e
o
f
W
a
t
e
r
;
E
=
s
e
e
u
s
e
r
g
u
i
d
e
S
e
c
t
i
o
n
2
.
3
.
5
;
L
=
s
e
e
u
s
e
r
g
u
i
d
e
o
n
l
e
a
d
;
M
=
m
u
t
a
g
e
n
;
S
=
s
e
e
u
s
e
r
g
u
i
d
e
S
e
c
t
io
n
5
;
V
=
v
o
l
a
t
i
l
e
;
R
=
R
B
A
a
p
p
l
i
e
d
(
S
e
e
U
s
e
r
G
u
i
d
e
f
o
r
A
r
s
e
n
i
c
n
o
t
i
c
e
)
;
c =
c
a
n
c
e
r
;
n
=
n
o
n
c
a
n
c
e
r
;
*
=
w
h
e
r
e
:
n
S
L
<
1
0
0
X
c
S
L
;
*
*
=
w
h
e
r
e
n
S
L
<
1
0
X
c
S
L
;
S
S
L
v
a
l
u
e
s
a
r
e
b
a
s
e
d
o
n
D
A
F
=
1
;
m
=
C
o
n
c
e
n
t
r
ati
o
n
m
a
y
e
x
c
e
e
d
c
e
i
l
i
n
g
l
i
m
i
t
(
S
e
e
U
s
e
r
G
u
i
d
e
)
;
s
=
C
o
n
c
e
n
t
r
a
t
i
o
n
m
a
y
e
x
c
e
e
d
C
s
a
t
(
S
e
e
U
s
e
r
G
u
i
d
e
)
To
x
i
c
i
t
y
a
n
d
C
h
e
m
i
c
a
l
-
s
p
e
c
i
f
i
c
I
n
f
o
r
m
a
t
i
o
n
C
o
n
t
a
m
i
n
a
n
t
Sc
r
e
e
n
i
n
g
L
e
v
e
l
s
P
r
o
t
e
c
t
i
o
n
o
f
G
r
o
u
n
d
W
a
t
e
r
S
S
L
s
3.0
E
-
0
2
I
1
0
.
0
1
9
Tr
i
n
i
t
r
o
b
e
n
z
e
n
e
,
1
,
3
,
5
-
9
9
-
3
5
-
4
2
.
2
E
+
0
3
n
3
.
2
E
+
0
4
n
5.9E+02
n
2
.
1
E
+
0
0
n
3.
0
E
-
0
2
I
5.0
E
-
0
4
I
1
0
.
0
3
2
Tr
i
n
i
t
r
o
t
o
l
u
e
n
e
,
2
,
4
,
6
-
1
1
8
-
9
6
-
7
2
.
1
E
+
0
1
c
*
*
9
.
6
E
+
0
1
c
*
*
2.5E+00
c
*
*
1
.
5
E
-
0
2
c
*
*
2.0
E
-
0
2
P
10
.
1
Tr
i
p
h
e
n
y
l
p
h
o
s
p
h
i
n
e
O
x
i
d
e
7
9
1
-
2
8
-
6
1
.
3
E
+
0
3
n
1
.
6
E
+
0
4
n
3.6E+02
n
1
.
5
E
+
0
0
n
2.0
E
-
0
2
A
10
.
1
Tr
i
s
(
1
,
3
-
D
i
c
h
l
o
r
o
-
2
-
p
r
o
p
y
l
)
P
h
o
s
p
h
a
t
e
1
3
6
7
4
-
8
7
-
8
1
.
3
E
+
0
3
n
1
.
6
E
+
0
4
n
3.6E+02
n
8
.
0
E
+
0
0
n
1.0
E
-
0
2
X
10
.
1
Tr
i
s
(
1
-
c
h
l
o
r
o
-
2
-
p
r
o
p
y
l
)
p
h
o
s
p
h
a
t
e
1
3
6
7
4
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8
4
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5
6
.
3
E
+
0
2
n
8
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2
E
+
0
3
n
1.9E+02
n
6
.
5
E
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1
n
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E
+
0
0
C
6
.
6
E
-
0
4
C
V
1
4.7
E
+
0
2
T
r
i
s
(
2
,
3
-
d
i
b
r
o
m
o
p
r
o
p
y
l
)
p
h
o
s
p
h
a
t
e
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2
6
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7
2
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7
2
.
8
E
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1
c
1
.
3
E
+
0
0
c
4
.
3
E
-
0
3
c
1
.
9
E
-
0
2
c
6
.
8
E
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0
3
c
1
.
3
E
-
0
4
c
2.
0
E
-
0
2
P
7.0
E
-
0
3
P
10
.
1
Tr
i
s
(
2
-
c
h
l
o
r
o
e
t
h
y
l
)
p
h
o
s
p
h
a
t
e
1
1
5
-
9
6
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8
2
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7
E
+
0
1
c
*
1
.
1
E
+
0
2
c
*
3.8E+00
c
*
3
.
8
E
-
0
3
c
*
3.
2
E
-
0
3
P
1.0
E
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0
1
P
10
.
1
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i
s
(
2
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e
t
h
y
l
h
e
x
y
l
)
p
h
o
s
p
h
a
t
e
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8
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4
2
-
2
1
.
7
E
+
0
2
c
*
7
.
2
E
+
0
2
c
2.4E+01
c
*
1
.
2
E
+
0
2
c
*
8.0
E
-
0
4
P
1
Tu
n
g
s
t
e
n
7
4
4
0
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3
3
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7
6
.
3
E
+
0
1
n
9
.
3
E
+
0
2
n
1.6E+01
n
2
.
4
E
+
0
0
n
3.0
E
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0
3
I
4
.
0
E
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5
A
1
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a
n
i
u
m
(
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o
l
u
b
l
e
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a
l
t
s
)
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A
2
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3
E
+
0
2
n
3
.
5
E
+
0
3
n
4
.
2
E
-
0
2
n
1
.
8
E
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0
1
n
6
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0
E
+
0
1
n
3
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0
E
+
0
1
2
.
7
E
+
0
1
n
1
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4
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+
0
1
1.0
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+
0
0
C
2
.
9
E
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0
4
C
M1
0
.
1
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e
t
h
a
n
e
5
1
-
7
9
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6
1
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2
E
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1
c
2
.
3
E
+
0
0
c
3
.
5
E
-
0
3
c
4
.
2
E
-
0
2
c
2
.
5
E
-
0
2
c
5
.
6
E
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0
6
c
8.3
E
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0
3
P
9
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0
E
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3
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7
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0
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0
6
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0
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0
2
6
Va
n
a
d
i
u
m
P
e
n
t
o
x
i
d
e
1
3
1
4
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6
2
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1
4
.
6
E
+
0
2
c
*
*
2
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0
E
+
0
3
c
*
*
3
.
4
E
-
0
4
c
*
1
.
5
E
-
0
3
c
*
1
.
5
E
+
0
2
n
n
5.0
E
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0
3
S
1
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0
E
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0
4
A
0
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0
2
6
Va
n
a
d
i
u
m
a
n
d
C
o
m
p
o
u
n
d
s
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4
0
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2
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2
3
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9
E
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2
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5
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8
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+
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3
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1
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0
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1
n
4
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4
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1
n
8
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6
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n
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r
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l
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7
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0
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1
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6
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4
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3
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4
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4
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2
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1
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9
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1
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Pa
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1
3
This document contains the tables from the EPA “OSWER Draft Guidance for Evaluating the
Vapor Intrusion to Indoor Air Pathway from Groundwater and Soils (Subsurface Vapor Intrusion
Guidance),” published in November 2002. The reference number is EPA 530-D-02-004. You can
find the entire document at http://www.epa.gov/epaoswer/hazwaste/ca/eis/vapor.htm.
OSWER Draft Guidance for
Evaluating the Vapor Intrusion
to Indoor Air Pathway from
Groundwater and Soils
(Subsurface Vapor Intrusion
Guidance)
Tables
November 2002
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C
7
.
0
E
+
0
0
1.
9
E
+
0
0
7
.
0
E
+
0
1
1
.
9
E
+
0
1
7
.
0
E
+
0
2
1
.
9
E
+
0
2
1
.
4
E
+
0
1
10
8
9
0
7
C
h
l
o
r
o
b
e
n
z
e
n
e
N
C
6.
0
E
+
0
1
1
.
3
E
+
0
1
6
.
0
E
+
0
2
1
.
3
E
+
0
2
6
.
0
E
+
0
3
1
.
3
E
+
0
3
3
.
9
E
+
0
2
10
9
6
9
3
1
-
C
h
l
o
r
o
b
u
t
a
n
e
X
N
C
1.
4
E
+
0
3
3
.
7
E
+
0
2
1
.
4
E
+
0
4
3
.
7
E
+
0
3
1
.
4
E
+
0
5
3
.
7
E
+
0
4
2
.
0
E
+
0
3
12
4
4
8
1
Ch
l
o
r
o
d
i
b
r
o
m
o
m
e
t
h
a
n
e
X
C
1
.
0
E
+
0
1
1
.
2
E
+
0
0
1
.
0
E
+
0
2
1
.
2
E
+
0
1
1
.
0
E
+
0
3
1
.
2
E
+
0
2
3
.
2
E
+
0
2
75
4
5
6
Ch
l
o
r
o
d
i
f
l
u
o
r
o
m
e
t
h
a
n
e
N
C
5
.
0
E
+
0
4
1
.
4
E
+
0
4
5
.
0
E
+
0
5
1
.
4
E
+
0
5
*
*
*
*
*
*
75
0
0
3
Ch
l
o
r
o
e
t
h
a
n
e
(
e
t
h
y
l
c
h
l
o
r
i
d
e
)
N
C
1
.
0
E
+
0
4
3
.
8
E
+
0
3
1
.
0
E
+
0
5
3
.
8
E
+
0
4
1
.
0
E
+
0
6
3
.
8
E
+
0
5
2
.
8
E
+
0
4
67
6
6
3
Ch
l
o
r
o
f
o
r
m
C
1
.
1
E
+
0
1
2
.
2
E
+
0
0
1
.
1
E
+
0
2
2.2
E
+
0
1
1
.
1
E
+
0
3
2
.
2
E
+
0
2
8
.
0
E
+
0
1
†
95
5
7
8
2
-
C
h
l
o
r
o
p
h
e
n
o
l
X
N
C
1.
8
E
+
0
1
3
.
3
E
+
0
0
1
.
8
E
+
0
2
3
.
3
E
+
0
1
1
.
8
E
+
0
3
3
.
3
E
+
0
2
1
.
1
E
+
0
3
75
2
9
6
2
-
C
h
l
o
r
o
p
r
o
p
a
n
e
N
C
1.
0
E
+
0
2
3
.
2
E
+
0
1
1
.
0
E
+
0
3
3
.
2
E
+
0
2
1
.
0
E
+
0
4
3
.
2
E
+
0
3
1
.
7
E
+
0
2
21
8
0
1
9
C
h
r
y
s
e
n
e
X
*
*
*
*
*
*
*
*
15
6
5
9
2
cis
-
1
,
2
-
D
i
c
h
l
o
r
o
e
t
h
y
l
e
n
e
X
N
C
3
.
5
E
+
0
1
8
.
8
E
+
0
0
3.
5
E
+
0
2
8
.
8
E
+
0
1
3
.
5
E
+
0
3
8
.
8
E
+
0
2
2
.
1
E
+
0
2
12
3
7
3
9
Cr
o
t
o
n
a
l
d
e
h
y
d
e
(
2
-
b
u
t
e
n
a
l
)
X
C
4
.
5
E
-
0
1
1
.
6
E
-
0
1
4
.
5
E
+
0
0
1
.
6
E
+
0
0
4
.
5
E
+
0
1
1
.
6
E
+
0
1
5
.
6
E
+
0
2
98
8
2
8
Cu
m
e
n
e
N
C
4
.
0
E
+
0
2
8
.
1
E
+
0
1
4
.
0
E
+
0
3
8
.
1
E
+
0
2
4
.
0
E
+
0
4
8
.
1
E
+
0
3
8
.
4
E
+
0
0
Ta
r
g
e
t
I
n
d
o
o
r
A
i
r
Co
n
c
e
n
t
r
a
t
i
o
n
t
o
S
a
t
i
s
f
y
Bo
t
h
t
h
e
P
r
e
s
c
r
i
b
e
d
R
i
s
k
Le
v
e
l
a
n
d
t
h
e
T
a
r
g
e
t
H
a
z
a
r
d
In
d
e
x
[R
=
1
0
-4 , H
I
=
1
)
Ta
r
g
e
t
S
h
a
l
l
o
w
S
o
i
l
G
a
s
Co
n
c
e
n
t
r
a
t
i
o
n
C
o
r
r
e
s
p
o
n
d
i
n
g
to
T
a
r
g
e
t
I
n
d
o
o
r
A
i
r
Co
n
c
e
n
t
r
a
t
i
o
n
W
h
e
r
e
t
h
e
S
o
i
l
Ga
s
t
o
I
n
d
o
o
r
A
i
r
A
t
t
e
n
u
a
t
i
o
n
Fa
c
t
o
r
=
0
.
1
Ta
r
g
e
t
D
e
e
p
S
o
i
l
G
a
s
Co
n
c
e
n
t
r
a
t
i
o
n
Co
r
r
e
s
p
o
n
d
i
n
g
t
o
T
a
r
g
e
t
In
d
o
o
r
A
i
r
C
o
n
c
e
n
t
r
a
t
i
o
n
Wh
e
r
e
t
h
e
S
o
i
l
G
a
s
t
o
In
d
o
o
r
A
i
r
A
t
t
e
n
u
a
t
i
o
n
Fa
c
t
o
r
=
0
.
0
1
C ta
r
g
e
t
C soi
l
-
g
a
s
C so
i
l
-
g
a
s
Co
m
p
o
u
n
d
s
wit
h
Pro
v
i
s
i
o
n
a
l
To
x
i
c
i
t
y
D
a
t
a
Ex
t
r
a
p
o
l
a
t
e
d
Fr
o
m
O
r
a
l
So
u
r
c
e
s
DR
A
F
T
Table 2a November 20, 2002
Ta
b
l
e
2
a
:
Q
u
e
s
t
i
o
n
4
G
e
n
e
r
i
c
S
c
r
e
e
n
i
n
g
L
e
v
e
l
s
a
n
d
S
u
m
m
a
r
y
S
h
e
e
t
1
Ris
k
=
1
x
1
0
-4
Ba
s
i
s
o
f
T
a
r
g
e
t
Co
n
c
e
n
t
r
a
t
i
o
n
Me
a
s
u
r
e
d
o
r
Re
a
s
o
n
a
b
l
y
Es
t
i
m
a
t
e
d
In
d
o
o
r
A
i
r
Co
n
c
e
n
t
r
a
t
i
o
n
Me
a
s
u
r
e
d
o
r
Re
a
s
o
n
a
b
l
y
Es
t
i
m
a
t
e
d
Sh
a
l
l
o
w
S
o
i
l
Ga
s
Co
n
c
e
n
t
r
a
t
i
o
n
Me
a
s
u
r
e
d
o
r
Re
a
s
o
n
a
b
l
y
Es
t
i
m
a
t
e
d
D
e
e
p
So
i
l
G
a
s
Co
n
c
e
n
t
r
a
t
i
o
n
Ta
r
g
e
t
G
r
o
u
n
d
w
a
t
e
r
C
o
n
c
e
n
t
r
a
t
i
o
n
Co
r
r
e
s
p
o
n
d
i
n
g
t
o
T
a
r
g
e
t
I
n
d
o
o
r
A
i
r
Co
n
c
e
n
t
r
a
t
i
o
n
W
h
e
r
e
t
h
e
S
o
i
l
G
a
s
to
I
n
d
o
o
r
A
i
r
A
t
t
e
n
u
a
t
i
o
n
F
a
c
t
o
r
=
0.
0
0
1
a
n
d
P
a
r
t
i
t
i
o
n
i
n
g
A
c
r
o
s
s
t
h
e
Wa
t
e
r
T
a
b
l
e
O
b
e
y s Henr y 's LawMeasured or Reasonably Estimated Groundwater Concentration
C=
c
a
n
c
e
r
r
i
s
k
[if
a
v
a
i
l
a
b
l
e
]
[
i
f
a
v
a
i
l
a
b
l
e
]
[
i
f
a
v
a
i
l
a
b
l
e
]
C gw [if available]
CA
S
N
o
.
C
h
e
m
i
c
a
l
NC
=
n
o
n
c
a
n
c
e
r
r
i
s
k
(u g /m
3 )
(p
p
bv
)
(s p ec
i
f
y u
n
i
t
s
)
(u g /m
3 )
(p
p
bv
)
(s p ec
i
f
y u
n
i
t
s
)
(u g /m
3 )
(p
p
bv
)
(s p ec
i
f
y u
n
i
t
s
)
(u g /L )(s p ecif y units )
Ta
r
g
e
t
I
n
d
o
o
r
A
i
r
Co
n
c
e
n
t
r
a
t
i
o
n
t
o
S
a
t
i
s
f
y
Bo
t
h
t
h
e
P
r
e
s
c
r
i
b
e
d
R
i
s
k
Le
v
e
l
a
n
d
t
h
e
T
a
r
g
e
t
H
a
z
a
r
d
In
d
e
x
[R
=
1
0
-4 , H
I
=
1
)
Ta
r
g
e
t
S
h
a
l
l
o
w
S
o
i
l
G
a
s
Co
n
c
e
n
t
r
a
t
i
o
n
C
o
r
r
e
s
p
o
n
d
i
n
g
to
T
a
r
g
e
t
I
n
d
o
o
r
A
i
r
Co
n
c
e
n
t
r
a
t
i
o
n
W
h
e
r
e
t
h
e
S
o
i
l
Ga
s
t
o
I
n
d
o
o
r
A
i
r
A
t
t
e
n
u
a
t
i
o
n
Fa
c
t
o
r
=
0
.
1
Ta
r
g
e
t
D
e
e
p
S
o
i
l
G
a
s
Co
n
c
e
n
t
r
a
t
i
o
n
Co
r
r
e
s
p
o
n
d
i
n
g
t
o
T
a
r
g
e
t
In
d
o
o
r
A
i
r
C
o
n
c
e
n
t
r
a
t
i
o
n
Wh
e
r
e
t
h
e
S
o
i
l
G
a
s
t
o
In
d
o
o
r
A
i
r
A
t
t
e
n
u
a
t
i
o
n
Fa
c
t
o
r
=
0
.
0
1
C ta
r
g
e
t
C soi
l
-
g
a
s
C so
i
l
-
g
a
s
Co
m
p
o
u
n
d
s
wit
h
Pro
v
i
s
i
o
n
a
l
To
x
i
c
i
t
y
D
a
t
a
Ex
t
r
a
p
o
l
a
t
e
d
Fr
o
m
O
r
a
l
So
u
r
c
e
s
72
5
5
9
D
D
E
X
C
2.
5
E
+
0
0
1
.
9
E
-
0
1
2
.
5
E
+
0
1
1
.
9
E
+
0
0
*
*
*
*
*
*
13
2
6
4
9
Dib
e
n
z
o
f
u
r
a
n
X
N
C
1
.
4
E
+
0
1
2
.
0
E
+
0
0
1
.
4
E
+
0
2
2
.
0
E
+
0
1
1
.
4
E
+
0
3
2
.
0
E
+
0
2
*
*
96
1
2
8
1,
2
-
D
i
b
r
o
m
o
-
3
-
c
h
l
o
r
o
p
r
o
p
a
n
e
N
C
2
.
0
E
-
0
1
2
.
1
E
-
0
2
2
.
0
E
+
0
0
2
.
1
E
-
0
1
2
.
0
E
+
0
1
2
.
1
E
+
0
0
3
.
3
E
+
0
1
10
6
9
3
4
1,
2
-
D
i
b
r
o
m
o
e
t
h
a
n
e
(
e
t
h
y
l
e
n
e
d
i
b
r
o
m
i
d
e
)
N
C
2
.
0
E
-
0
1
2
.
6
E
-
0
2
2
.
0
E
+
0
0
2
.
6
E
-
0
1
2
.
0
E
+
0
1
2
.
6
E
+
0
0
6
.
6
E
+
0
0
54
1
7
3
1
1,
3
-
D
i
c
h
l
o
r
o
b
e
n
z
e
n
e
X
N
C
1
.
1
E
+
0
2
1.
7
E
+
0
1
1
.
1
E
+
0
3
1
.
7
E
+
0
2
1
.
1
E
+
0
4
1
.
7
E
+
0
3
8
.
3
E
+
0
2
95
5
0
1
1,
2
-
D
i
c
h
l
o
r
o
b
e
n
z
e
n
e
N
C
2
.
0
E
+
0
2
3.
3
E
+
0
1
2
.
0
E
+
0
3
3
.
3
E
+
0
2
2
.
0
E
+
0
4
3
.
3
E
+
0
3
2
.
6
E
+
0
3
10
6
4
6
7
1,
4
-
D
i
c
h
l
o
r
o
b
e
n
z
e
n
e
N
C
8
.
0
E
+
0
2
1.
3
E
+
0
2
8
.
0
E
+
0
3
1
.
3
E
+
0
3
8
.
0
E
+
0
4
1
.
3
E
+
0
4
8
.
2
E
+
0
3
75
7
1
8
Dic
h
l
o
r
o
d
i
f
l
u
o
r
o
m
e
t
h
a
n
e
N
C
2
.
0
E
+
0
2
4
.
0
E
+
0
1
2
.
0
E
+
0
3
4
.
0
E
+
0
2
2
.
0
E
+
0
4
4
.
0
E
+
0
3
1
.
4
E
+
0
1
75
3
4
3
1,
1
-
D
i
c
h
l
o
r
o
e
t
h
a
n
e
N
C
5
.
0
E
+
0
2
1.
2
E
+
0
2
5
.
0
E
+
0
3
1
.
2
E
+
0
3
5
.
0
E
+
0
4
1
.
2
E
+
0
4
2
.
2
E
+
0
3
10
7
0
6
2
1,
2
-
D
i
c
h
l
o
r
o
e
t
h
a
n
e
C
9
.
4
E
+
0
0
2.
3
E
+
0
0
9
.
4
E
+
0
1
2
.
3
E
+
0
1
9
.
4
E
+
0
2
2
.
3
E
+
0
2
2
.
3
E
+
0
2
75
3
5
4
1
,
1
-
D
ic
h
l
o
r
o
e
t
h
y
l
e
n
e
N
C
2
.
0
E
+
0
2
5
.
0
E
+
0
1
2
.
0
E
+
0
3
5
.
0
E
+
0
2
2
.
0
E
+
0
4
5
.
0
E
+
0
3
1
.
9
E
+
0
2
78
8
7
5
1,
2
-
D
i
c
h
l
o
r
o
p
r
o
p
a
n
e
N
C
4
.
0
E
+
0
0
8
.
7
E
-
0
1
4.
0
E
+
0
1
8
.
7
E
+
0
0
4
.
0
E
+
0
2
8
.
7
E
+
0
1
3
.
5
E
+
0
1
54
2
7
5
6
1,
3
-
D
i
c
h
l
o
r
o
p
r
o
p
e
n
e
N
C
2
.
0
E
+
0
1
4.
4
E
+
0
0
2
.
0
E
+
0
2
4
.
4
E
+
0
1
2
.
0
E
+
0
3
4
.
4
E
+
0
2
2
.
8
E
+
0
1
60
5
7
1
Die
l
d
r
i
n
C
5
.
3
E
-
0
2
3
.
4
E
-
0
3
5
.
3
E
-
0
1
3
.
4
E
-
0
2
5
.
3
E
+
0
0
3
.
4
E
-
0
1
8
.
6
E
+
0
1
11
5
2
9
7
En
d
o
s
u
l
f
a
n
X
N
C
2
.
1
E
+
0
1
1
.
3
E
+
0
0
2.
1
E
+
0
2
1
.
3
E
+
0
1
*
*
*
*
*
*
10
6
8
9
8
Ep
i
c
h
l
o
r
o
h
y
d
r
i
n
N
C
1
.
0
E
+
0
0
2
.
6
E
-
0
1
1
.
0
E
+
0
1
2
.
6
E
+
0
0
1
.
0
E
+
0
2
2
.
6
E
+
0
1
8
.
0
E
+
0
2
60
2
9
7
Eth
y
l
e
t
h
e
r
X
N
C
7
.
0
E
+
0
2
2
.
3
E
+
0
2
7
.
0
E
+
0
3
2
.
3
E
+
0
3
7
.
0
E
+
0
4
2
.
3
E
+
0
4
5
.
2
E
+
0
2
14
1
7
8
6
Eth
y
l
a
c
e
t
a
t
e
X
N
C
3
.
2
E
+
0
3
8
.
7
E
+
0
2
3
.
2
E
+
0
4
8
.
7
E
+
0
3
3
.
2
E
+
0
5
8
.
7
E
+
0
4
5
.
6
E
+
0
5
10
0
4
1
4
Eth
y
l
b
e
n
z
e
n
e
C
2
.
2
E
+
0
2
5.
1
E
+
0
1
2
.
2
E
+
0
3
5
.
1
E
+
0
2
2
.
2
E
+
0
4
5
.
1
E
+
0
3
7
.
0
E
+
0
2
†
75
2
1
8
Eth
y
l
e
n
e
o
x
i
d
e
C
2
.
4
E
+
0
0
1
.
4
E
+
0
0
2
.
4
E
+
0
1
1
.
4
E
+
0
1
2
.
4
E
+
0
2
1
.
4
E
+
0
2
1
.
1
E
+
0
2
97
6
3
2
Eth
y
l
m
e
t
h
a
c
r
y
l
a
t
e
X
N
C
3
.
2
E
+
0
2
6
.
8
E
+
0
1
3.
2
E
+
0
3
6
.
8
E
+
0
2
3
.
2
E
+
0
4
6
.
8
E
+
0
3
9
.
1
E
+
0
3
86
7
3
7
Flu
o
r
e
n
e
X
N
C
1
.
4
E
+
0
2
2
.
1
E
+
0
1
1
.
4
E
+
0
3
2
.
1
E
+
0
2
*
*
*
*
*
*
11
0
0
0
9
Fu
r
a
n
X
N
C
3
.
5
E
+
0
0
1
.
3
E
+
0
0
3
.
5
E
+
0
1
1
.
3
E
+
0
1
3
.
5
E
+
0
2
1
.
3
E
+
0
2
1
.
6
E
+
0
1
58
8
9
9
ga
m
m
a
-
H
C
H
(
L
i
n
d
a
n
e
)
X
C
6
.
6
E
-
0
1
5
.
5
E
-
0
2
6
.
6
E
+
0
0
5
.
5
E
-
0
1
6
.
6
E
+
0
1
5
.
5
E
+
0
0
1
.
1
E
+
0
3
76
4
4
8
H
e
p
t
a
c
h
l
o
r
C
1.9
E
-
0
1
1
.
2
E
-
0
2
1
.
9
E
+
0
0
1
.
2
E
-
0
1
1
.
9
E
+
0
1
1
.
2
E
+
0
0
4
.
0
E
-
0
1
†
87
6
8
3
He
x
a
c
h
l
o
r
o
-
1
,
3
-
b
u
t
a
d
i
e
n
e
C
1
.
1
E
+
0
1
1.
0
E
+
0
0
1
.
1
E
+
0
2
1
.
0
E
+
0
1
1
.
1
E
+
0
3
1
.
0
E
+
0
2
3
.
3
E
+
0
1
11
8
7
4
1
He
x
a
c
h
l
o
r
o
b
e
n
z
e
n
e
C
5
.
3
E
-
0
1
4.5
E
-
0
2
5
.
3
E
+
0
0
4
.
5
E
-
0
1
5
.
3
E
+
0
1
4
.
5
E
+
0
0
*
*
77
4
7
4
He
x
a
c
h
l
o
r
o
c
y
c
l
o
p
e
n
t
a
d
i
e
n
e
N
C
2
.
0
E
-
0
1
1
.
8
E
-
0
2
2
.
0
E
+
0
0
1
.
8
E
-
0
1
2
.
0
E
+
0
1
1
.
8
E
+
0
0
5
.
0
E
+
0
1
†
67
7
2
1
He
x
a
c
h
l
o
r
o
e
t
h
a
n
e
C
6
.
1
E
+
0
1
6.
3
E
+
0
0
6
.
1
E
+
0
2
6
.
3
E
+
0
1
6
.
1
E
+
0
3
6
.
3
E
+
0
2
3
.
8
E
+
0
2
11
0
5
4
3
He
x
a
n
e
N
C
2
.
0
E
+
0
2
5
.
7
E
+
0
1
2
.
0
E
+
0
3
5
.
7
E
+
0
2
2
.
0
E
+
0
4
5
.
7
E
+
0
3
2
.
9
E
+
0
0
74
9
0
8
H
y
d
r
o
g
e
n
c
y
a
n
i
d
e
N
C
3.
0
E
+
0
0
2
.
7
E
+
0
0
3
.
0
E
+
0
1
2
.
7
E
+
0
1
3
.
0
E
+
0
2
2
.
7
E
+
0
2
5
.
5
E
+
0
2
78
8
3
1
I
s
o
b
u
t
a
n
o
l
X
N
C
1.
1
E
+
0
3
3
.
5
E
+
0
2
1
.
1
E
+
0
4
3
.
5
E
+
0
3
1
.
1
E
+
0
5
3
.
5
E
+
0
4
2
.
2
E
+
0
6
74
3
9
9
7
6
Me
r
c
u
r
y
(
e
l
e
m
e
n
t
a
l
)
N
C
3
.
0
E
-
0
1
3
.
7
E
-
0
2
3
.
0
E
+
0
0
3
.
7E
-
0
1
3
.
0
E
+
0
1
3
.
7
E
+
0
0
6
.
8
E
-
0
1
12
6
9
8
7
Me
t
h
a
c
r
y
l
o
n
i
t
r
i
l
e
N
C
7
.
0
E
-0
1
2
.
6
E
-
0
1
7
.
0
E
+
0
0
2
.
6
E
+
0
0
7
.
0
E
+
0
1
2
.
6
E
+
0
1
6
.
9
E
+
0
1
72
4
3
5
Me
t
h
o
x
y
c
h
l
o
r
X
N
C
1
.
8
E
+
0
1
1
.
2
E
+
0
0
*
*
*
*
*
*
*
*
*
*
79
2
0
9
Me
t
h
y
l
a
c
e
t
a
t
e
X
N
C
3
.
5
E
+
0
3
1
.
2
E
+
0
3
3
.
5
E
+
0
4
1
.
2
E
+
0
4
3
.
5
E
+
0
5
1
.
2
E
+
0
5
7
.
2
E
+
0
5
96
3
3
3
Me
t
h
y
l
a
c
r
y
l
a
t
e
X
N
C
1
.
1
E
+
0
2
3
.
0
E
+
0
1
1
.
1
E
+
0
3
3
.
0
E
+
0
2
1
.
1
E
+
0
4
3
.
0
E
+
0
3
1
.
4
E
+
0
4
DR
A
F
T
Table 2a November 20, 2002
Ta
b
l
e
2
a
:
Q
u
e
s
t
i
o
n
4
G
e
n
e
r
i
c
S
c
r
e
e
n
i
n
g
L
e
v
e
l
s
a
n
d
S
u
m
m
a
r
y
S
h
e
e
t
1
Ris
k
=
1
x
1
0
-4
Ba
s
i
s
o
f
T
a
r
g
e
t
Co
n
c
e
n
t
r
a
t
i
o
n
Me
a
s
u
r
e
d
o
r
Re
a
s
o
n
a
b
l
y
Es
t
i
m
a
t
e
d
In
d
o
o
r
A
i
r
Co
n
c
e
n
t
r
a
t
i
o
n
Me
a
s
u
r
e
d
o
r
Re
a
s
o
n
a
b
l
y
Es
t
i
m
a
t
e
d
Sh
a
l
l
o
w
S
o
i
l
Ga
s
Co
n
c
e
n
t
r
a
t
i
o
n
Me
a
s
u
r
e
d
o
r
Re
a
s
o
n
a
b
l
y
Es
t
i
m
a
t
e
d
D
e
e
p
So
i
l
G
a
s
Co
n
c
e
n
t
r
a
t
i
o
n
Ta
r
g
e
t
G
r
o
u
n
d
w
a
t
e
r
C
o
n
c
e
n
t
r
a
t
i
o
n
Co
r
r
e
s
p
o
n
d
i
n
g
t
o
T
a
r
g
e
t
I
n
d
o
o
r
A
i
r
Co
n
c
e
n
t
r
a
t
i
o
n
W
h
e
r
e
t
h
e
S
o
i
l
G
a
s
to
I
n
d
o
o
r
A
i
r
A
t
t
e
n
u
a
t
i
o
n
F
a
c
t
o
r
=
0.
0
0
1
a
n
d
P
a
r
t
i
t
i
o
n
i
n
g
A
c
r
o
s
s
t
h
e
Wa
t
e
r
T
a
b
l
e
O
b
e
y s Henr y 's LawMeasured or Reasonably Estimated Groundwater Concentration
C=
c
a
n
c
e
r
r
i
s
k
[if
a
v
a
i
l
a
b
l
e
]
[
i
f
a
v
a
i
l
a
b
l
e
]
[
i
f
a
v
a
i
l
a
b
l
e
]
C gw [if available]
CA
S
N
o
.
C
h
e
m
i
c
a
l
NC
=
n
o
n
c
a
n
c
e
r
r
i
s
k
(u g /m
3 )
(p
p
bv
)
(s p ec
i
f
y u
n
i
t
s
)
(u g /m
3 )
(p
p
bv
)
(s p ec
i
f
y u
n
i
t
s
)
(u g /m
3 )
(p
p
bv
)
(s p ec
i
f
y u
n
i
t
s
)
(u g /L )(s p ecif y units )
Ta
r
g
e
t
I
n
d
o
o
r
A
i
r
Co
n
c
e
n
t
r
a
t
i
o
n
t
o
S
a
t
i
s
f
y
Bo
t
h
t
h
e
P
r
e
s
c
r
i
b
e
d
R
i
s
k
Le
v
e
l
a
n
d
t
h
e
T
a
r
g
e
t
H
a
z
a
r
d
In
d
e
x
[R
=
1
0
-4 , H
I
=
1
)
Ta
r
g
e
t
S
h
a
l
l
o
w
S
o
i
l
G
a
s
Co
n
c
e
n
t
r
a
t
i
o
n
C
o
r
r
e
s
p
o
n
d
i
n
g
to
T
a
r
g
e
t
I
n
d
o
o
r
A
i
r
Co
n
c
e
n
t
r
a
t
i
o
n
W
h
e
r
e
t
h
e
S
o
i
l
Ga
s
t
o
I
n
d
o
o
r
A
i
r
A
t
t
e
n
u
a
t
i
o
n
Fa
c
t
o
r
=
0
.
1
Ta
r
g
e
t
D
e
e
p
S
o
i
l
G
a
s
Co
n
c
e
n
t
r
a
t
i
o
n
Co
r
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b
e
n
z
e
n
e
N
C
6
.
0
E
+
0
0
1
.
2
E
+
0
0
6
.
0
E
+
0
1
1
.
2
E
+
0
1
6
.
0
E
+
0
2
1
.
2
E
+
0
2
2
.
4
E
+
0
1
DR
A
F
T
Table 2a November 20, 2002
Ta
b
l
e
2
a
:
Q
u
e
s
t
i
o
n
4
G
e
n
e
r
i
c
S
c
r
e
e
n
i
n
g
L
e
v
e
l
s
a
n
d
S
u
m
m
a
r
y
S
h
e
e
t
1
Ris
k
=
1
x
1
0
-4
Ba
s
i
s
o
f
T
a
r
g
e
t
Co
n
c
e
n
t
r
a
t
i
o
n
Me
a
s
u
r
e
d
o
r
Re
a
s
o
n
a
b
l
y
Es
t
i
m
a
t
e
d
In
d
o
o
r
A
i
r
Co
n
c
e
n
t
r
a
t
i
o
n
Me
a
s
u
r
e
d
o
r
Re
a
s
o
n
a
b
l
y
Es
t
i
m
a
t
e
d
Sh
a
l
l
o
w
S
o
i
l
Ga
s
Co
n
c
e
n
t
r
a
t
i
o
n
Me
a
s
u
r
e
d
o
r
Re
a
s
o
n
a
b
l
y
Es
t
i
m
a
t
e
d
D
e
e
p
So
i
l
G
a
s
Co
n
c
e
n
t
r
a
t
i
o
n
Ta
r
g
e
t
G
r
o
u
n
d
w
a
t
e
r
C
o
n
c
e
n
t
r
a
t
i
o
n
Co
r
r
e
s
p
o
n
d
i
n
g
t
o
T
a
r
g
e
t
I
n
d
o
o
r
A
i
r
Co
n
c
e
n
t
r
a
t
i
o
n
W
h
e
r
e
t
h
e
S
o
i
l
G
a
s
to
I
n
d
o
o
r
A
i
r
A
t
t
e
n
u
a
t
i
o
n
F
a
c
t
o
r
=
0.
0
0
1
a
n
d
P
a
r
t
i
t
i
o
n
i
n
g
A
c
r
o
s
s
t
h
e
Wa
t
e
r
T
a
b
l
e
O
b
e
y s Henr y 's LawMeasured or Reasonably Estimated Groundwater Concentration
C=
c
a
n
c
e
r
r
i
s
k
[if
a
v
a
i
l
a
b
l
e
]
[
i
f
a
v
a
i
l
a
b
l
e
]
[
i
f
a
v
a
i
l
a
b
l
e
]
C gw [if available]
CA
S
N
o
.
C
h
e
m
i
c
a
l
NC
=
n
o
n
c
a
n
c
e
r
r
i
s
k
(u g /m
3 )
(p
p
bv
)
(s p ec
i
f
y u
n
i
t
s
)
(u g /m
3 )
(p
p
bv
)
(s p ec
i
f
y u
n
i
t
s
)
(u g /m
3 )
(p
p
bv
)
(s p ec
i
f
y u
n
i
t
s
)
(u g /L )(s p ecif y units )
Ta
r
g
e
t
I
n
d
o
o
r
A
i
r
Co
n
c
e
n
t
r
a
t
i
o
n
t
o
S
a
t
i
s
f
y
Bo
t
h
t
h
e
P
r
e
s
c
r
i
b
e
d
R
i
s
k
Le
v
e
l
a
n
d
t
h
e
T
a
r
g
e
t
H
a
z
a
r
d
In
d
e
x
[R
=
1
0
-4 , H
I
=
1
)
Ta
r
g
e
t
S
h
a
l
l
o
w
S
o
i
l
G
a
s
Co
n
c
e
n
t
r
a
t
i
o
n
C
o
r
r
e
s
p
o
n
d
i
n
g
to
T
a
r
g
e
t
I
n
d
o
o
r
A
i
r
Co
n
c
e
n
t
r
a
t
i
o
n
W
h
e
r
e
t
h
e
S
o
i
l
Ga
s
t
o
I
n
d
o
o
r
A
i
r
A
t
t
e
n
u
a
t
i
o
n
Fa
c
t
o
r
=
0
.
1
Ta
r
g
e
t
D
e
e
p
S
o
i
l
G
a
s
Co
n
c
e
n
t
r
a
t
i
o
n
Co
r
r
e
s
p
o
n
d
i
n
g
t
o
T
a
r
g
e
t
In
d
o
o
r
A
i
r
C
o
n
c
e
n
t
r
a
t
i
o
n
Wh
e
r
e
t
h
e
S
o
i
l
G
a
s
t
o
In
d
o
o
r
A
i
r
A
t
t
e
n
u
a
t
i
o
n
Fa
c
t
o
r
=
0
.
0
1
C ta
r
g
e
t
C soi
l
-
g
a
s
C so
i
l
-
g
a
s
Co
m
p
o
u
n
d
s
wit
h
Pro
v
i
s
i
o
n
a
l
To
x
i
c
i
t
y
D
a
t
a
Ex
t
r
a
p
o
l
a
t
e
d
Fr
o
m
O
r
a
l
So
u
r
c
e
s
10
8
6
7
8
1,
3
,
5
-
T
r
i
m
e
t
h
y
l
b
e
n
z
e
n
e
N
C
6
.
0
E
+
0
0
1
.
2
E
+
0
0
6
.
0
E
+
0
1
1
.
2
E
+
0
1
6
.
0
E
+
0
2
1
.
2
E
+
0
2
2
.
5
E
+
0
1
10
8
0
5
4
Vin
y
l
a
c
e
t
a
t
e
N
C
2
.
0
E
+
0
2
5
.
7
E
+
0
1
2
.
0
E
+
0
3
5
.
7
E
+
0
2
2
.
0
E
+
0
4
5
.
7
E
+
0
3
9
.
6
E
+
0
3
75
0
1
4
Vin
y
l
c
h
l
o
r
i
d
e
(
c
h
l
o
r
o
e
t
h
e
n
e
)
C
2
.
8
E
+
0
1
1
.
1
E
+
0
1
2
.
8
E
+
0
2
1
.
1
E
+
0
2
2
.
8
E
+
0
3
1
.
1
E
+
0
3
2
.
5
E
+
0
1
1 A
F
=
0
.
1
f
o
r
S
h
a
l
l
o
w
S
o
i
l
G
a
s
T
a
r
g et
C
o
n
c
e
n
t
r
a
t
i
o
n
A
F
=
0
.
0
1
f
o
r
D
e
e
p
S
o
i
l
G
a
s
T
a
r
g
e
t
C
o
n
c
e
n
t
r
a
t
i
o
n
A
F
=
0
.
0
0
1
f
o
r
G
r
o
u
n
d
w
a
t
e
r
T
a
r
g
e
t
C
o
n
c
e
n
t
r
a
t
i
o
n
**
T
a
r
g
e
t
s
o
i
l
g
a
s
c
o
n
c
e
n
t
r
a
t
i
o
n
e
x
c
e
e
d
s
m
a
x
i
m
u
m
p
o
s
s
i
b
l
e
v
a
p
o
r
c
o
n
c
e
n
t
r
a
t
i
o
n
(
p
a
t
h
w
a
y
i
n
c
o
m
p
l
e
t
e
)
††
T
h
e
t
a
r
g
e
t
c
o
n
c
e
n
t
r
a
t
i
o
n
f
o
r
t
r
i
c
h
l
o
r
o
e
t
h
y
l
e
n
e
i
s
b
a
s
e
d
o
n
t
h
e
u
p
p
e
r
b
o
u
n
d
c
a
n
c
e
r
s
l
o
p
e
f
a
c
t
o
r
i
d
e
n
t
i
f
i
e
d
i
n
E
P
A
'
s
d
r
a
f
t
r
i
s
k
a
s
s
e
s
s
m
e
n
t
f
o
r
t
r
i
c
h
l
o
r
o
e
t
h
y
l
e
n
e
(
U
S
E
P
A
,
2
0
0
1
)
.
T
h
e
s
l
o
p
e
f
a
c
t
o
r
i
s
b
a
s
e
d
o
n
s
t
a
t
e
-
o
f
-
t
h
e
-
a
r
t
m
e
t
h
o
d
o
l
o
g
y
,
h
o
w
e
v
e
r
t
h
e
T
C
E
a
ssessment is still undergoing
re
v
i
e
w
.
A
s
a
r
e
s
u
l
t
,
t
h
e
s
l
o
p
e
f
a
c
t
o
r
a
n
d
t
h
e
t
a
r
g
e
t
c
o
n
c
e
n
t
r
a
t
i
o
n
v
a
l
u
e
s
f
o
r
T
C
E
m
a
y
b
e
r
e
v
i
s
e
d
f
u
r
t
h
e
r
.
(
S
e
e
A
p
p
e
n
d
i
x
D
.
)
* H
e
a
l
t
h
-
b
a
s
e
d
t
a
r
g
e
t
b
r
e
a
t
h
i
n
g
c
o
n
c
e
n
t
r
a
t
i
o
n
e
x
c
e
e
d
s
m
a
x
i
m
u
m
p
o
s
s
i
b
l
e
c
h
e
m
i
c
a
l
v
a
p
o
r
c
o
n
c
e
n
t
r
a
t
i
o
n
(
p
a
t
h
w
a
y
i
n
c
o
m
p
l
e
t
e
)
†
T
h
e
t
a
r
g
e
t
g
r
o
u
n
d
w
a
t
e
r
c
o
n
c
e
n
t
r
a
t
i
o
n
i
s
t
h
e
M
C
L
.
(
T
h
e
M
C
L
f
o
r
c
h
l
o
r
o
f
o
r
m
i
s
t
h
e
M
C
L
f
o
r
t
o
t
a
l
T
r
i
h
a
l
o
m
e
t
h
a
n
e
s
.
T
h
e
M
C
L
l
i
s
t
e
d
fo
r
m
-
X
y
l
e
n
e
,
o
-
X
y
l
e
n
e
,
a
n
d
p
-
X
y
l
e
n
e
i
s
t
h
e
M
C
L
f
o
r
t
o
t
a
l
X
y
l
e
n
e
s
.
)
DR
A
F
T
Table 2a November 20, 2002
Ta
b
l
e
2
b
:
Q
u
e
s
t
i
o
n
4
G
e
n
e
r
i
c
S
c
r
e
e
n
i
n
g
L
e
v
e
l
s
a
n
d
S
u
m
m
a
r
y
S
h
e
e
t
1
Ris
k
=
1
x
1
0
-5
Ba
s
i
s
o
f
T
a
r
g
e
t
Co
n
c
e
n
t
r
a
t
i
o
n
Me
a
s
u
r
e
d
o
r
Re
a
s
o
n
a
b
l
y
Es
t
i
m
a
t
e
d
In
d
o
o
r
A
i
r
Co
n
c
e
n
t
r
a
t
i
o
n
Me
a
s
u
r
e
d
o
r
Re
a
s
o
n
a
b
l
y
Es
t
i
m
a
t
e
d
Sh
a
l
l
o
w
S
o
i
l
Ga
s
Co
n
c
e
n
t
r
a
t
i
o
n
Me
a
s
u
r
e
d
o
r
Re
a
s
o
n
a
b
l
y
Es
t
i
m
a
t
e
d
D
e
e
p
So
i
l
G
a
s
Co
n
c
e
n
t
r
a
t
i
o
n
Ta
r
g
e
t
G
r
o
u
n
d
w
a
t
e
r
C
o
n
c
e
n
t
r
a
t
i
o
n
Co
r
r
e
s
p
o
n
d
i
n
g
t
o
T
a
r
g
e
t
I
n
d
o
o
r
A
i
r
Co
n
c
e
n
t
r
a
t
i
o
n
W
h
e
r
e
t
h
e
S
o
i
l
G
a
s
to
I
n
d
o
o
r
A
i
r
A
t
t
e
n
u
a
t
i
o
n
F
a
c
t
o
r
=
0.0
0
1
a
n
d
P
a
r
t
i
t
i
o
n
i
n
g
A
c
r
o
s
s
t
h
e
Wa
t
e
r
T
a
b
l
e
O
b
e
y s Henr y 's LawMeasured or Reasonably Estimated Groundwater Concentration
C=
c
a
n
c
e
r
r
i
s
k
[if
a
v
a
i
l
a
b
l
e
]
[
i
f
a
v
a
i
l
a
b
l
e
]
[
i
f
a
v
a
i
l
a
b
l
e
]
C gw [if available]
CA
S
N
o
.
C
h
e
m
i
c
a
l
N
C
=
n
o
n
c
a
n
c
e
r
r
i
s
k
(u
g
/
m
3
)
(
p
p
b
v
)
(
s
p
e
c
i
f
y
u
n
i
t
s
)
(
u
g
/
m
3
)
(
p
p
b
v
)
(
s
p
e
c
i
f
y
u
n
i
t
s
)
(
u
g
/
m
3
)
(
p
p
b
v
)
(
s
p
e
c
i
f
y
u
n
i
t
s
)
(
u
g
/
L
)
(
s
p
e
c
ify units)
83
3
2
9
A
c
e
n
a
p
h
t
h
e
n
e
X
N
C
2.
1
E
+
0
2
3
.
3
E
+
0
1
2
.
1
E
+
0
3
3
.
3
E
+
0
2
2
.
1
E
+
0
4
3
.
3
E
+
0
3
*
*
75
0
7
0
A
c
e
t
a
l
d
e
h
y
d
e
NC
9
.
0
E
+
0
0
5
.
0
E
+
0
0
9
.
0
E
+
0
1
5
.
0
E
+
0
1
9
.
0
E
+
0
2
5
.
0
E
+
0
2
2
.
8
E
+
0
3
67
6
4
1
A
c
e
t
o
n
e
X
N
C
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l
To
x
i
c
i
t
y
D
a
t
a
Ex
t
r
a
p
o
l
a
t
e
d
Fr
o
m
O
r
a
l
So
u
r
c
e
s
DR
A
F
T
Table 2b November 20, 2002
Ta
b
l
e
2
b
:
Q
u
e
s
t
i
o
n
4
G
e
n
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r
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c
S
c
r
e
e
n
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n
g
L
e
v
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l
s
a
n
d
S
u
m
m
a
r
y
S
h
e
e
t
1
Ris
k
=
1
x
1
0
-5
Ba
s
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s
o
f
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t
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Me
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r
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a
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a
b
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y s Henr y 's LawMeasured or Reasonably Estimated Groundwater Concentration
C=
c
a
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e
r
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k
[if
a
v
a
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l
a
b
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a
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a
b
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[
i
f
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b
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]
C gw [if available]
CA
S
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.
C
h
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c
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C
=
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n
c
a
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(u
g
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m
3
)
(
p
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s
p
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c
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(
u
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3
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(
p
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s
p
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3
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(
p
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s
p
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y
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)
(
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L
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(
s
p
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c
ify units)
Ta
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, H
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=
1
)
Ta
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C ta
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To
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p
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d
Fr
o
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So
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r
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s
72
5
5
9
D
D
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X
C
2
.
5
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1
1
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2
2
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5
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1
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9
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1
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13
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9
Dib
e
n
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1
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4
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+
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1
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4
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0
2
2
.
0
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+
0
1
1
.
4
E
+
0
3
2
.
0
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+
0
2
*
*
96
1
2
8
1,
2
-
D
i
b
r
o
m
o
-
3
-
c
h
l
o
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p
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e
N
C
2
.
0
E
-
0
1
2
.
1
E
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0
2
2
.
0
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0
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2
.
1
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0
1
2
.
0
E
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0
1
2
.
1
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0
0
3
.
3
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1
10
6
9
3
4
1,
2
-
D
i
b
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o
m
o
e
t
h
a
n
e
(
e
t
h
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l
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e
d
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b
r
o
m
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e
)
C
1
.
1
E
-
0
1
1
.
4
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0
2
1
.
1
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+
0
0
1
.
4
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0
1
1
.
1
E
+
0
1
1
.
4
E
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0
0
3
.
6
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+
0
0
54
1
7
3
1
1,
3
-
D
i
c
h
l
o
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o
b
e
n
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e
n
e
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C
1
.
1
E
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2
1.7
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1
.
1
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1
.
7
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+
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1
.
1
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4
1
.
7
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0
3
8
.
3
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+
0
2
95
5
0
1
1,
2
-
D
i
c
h
l
o
r
o
b
e
n
z
e
n
e
N
C
2
.
0
E
+
0
2
3.3
E
+
0
1
2
.
0
E
+
0
3
3
.
3
E
+
0
2
2
.
0
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+
0
4
3
.
3
E
+
0
3
2
.
6
E
+
0
3
10
6
4
6
7
1,
4
-
D
i
c
h
l
o
r
o
b
e
n
z
e
n
e
N
C
8
.
0
E
+
0
2
1.3
E
+
0
2
8
.
0
E
+
0
3
1
.
3
E
+
0
3
8
.
0
E
+
0
4
1
.
3
E
+
0
4
8
.
2
E
+
0
3
75
7
1
8
Dic
h
l
o
r
o
d
i
f
l
u
o
r
o
m
e
t
h
a
n
e
N
C
2
.
0
E
+
0
2
4
.
0
E
+
0
1
2
.
0
E
+
0
3
4
.
0
E
+
0
2
2
.
0
E
+
0
4
4
.
0
E
+
0
3
1
.
4
E
+
0
1
75
3
4
3
1,
1
-
D
i
c
h
l
o
r
o
e
t
h
a
n
e
N
C
5
.
0
E
+
0
2
1.2
E
+
0
2
5
.
0
E
+
0
3
1
.
2
E
+
0
3
5
.
0
E
+
0
4
1
.
2
E
+
0
4
2
.
2
E
+
0
3
10
7
0
6
2
1,
2
-
D
i
c
h
l
o
r
o
e
t
h
a
n
e
C
9
.
4
E
-
0
1
2
.
3
E
-
0
1
9
.
4
E
+
0
0
2
.
3
E
+
0
0
9
.
4
E
+
0
1
2
.
3
E
+
0
1
2
.
3
E
+
0
1
75
3
5
4
1
,
1
-
D
i
ch
l
o
r
o
e
t
h
y
l
e
n
e
N
C
2
.
0
E
+
0
2
5
.
0
E
+
0
1
2
.
0
E
+
0
3
5
.
0
E
+
0
2
2
.
0
E
+
0
4
5
.
0
E
+
0
3
1
.
9
E
+
0
2
78
8
7
5
1,
2
-
D
i
c
h
l
o
r
o
p
r
o
p
a
n
e
N
C
4
.
0
E
+
0
0
8
.
7
E
-
0
1
4.
0
E
+
0
1
8
.
7
E
+
0
0
4
.
0
E
+
0
2
8
.
7
E
+
0
1
3
.
5
E
+
0
1
54
2
7
5
6
1,
3
-
D
i
c
h
l
o
r
o
p
r
o
p
e
n
e
C
6
.
1
E
+
0
0
1.3
E
+
0
0
6
.
1
E
+
0
1
1
.
3
E
+
0
1
6
.
1
E
+
0
2
1
.
3
E
+
0
2
8
.
4
E
+
0
0
60
5
7
1
Die
l
d
r
i
n
C
5
.
3
E
-
0
3
3
.
4
E
-
0
4
5
.3
E
-
0
2
3
.
4
E
-
0
3
5
.3
E
-
0
1
3
.
4
E
-
0
2
8
.
6
E
+
0
0
11
5
2
9
7
En
d
o
s
u
l
f
a
n
X
N
C
2
.
1
E
+
0
1
1
.
3
E
+
0
0
2.
1
E
+
0
2
1
.
3
E
+
0
1
*
*
*
*
*
*
10
6
8
9
8
Ep
i
c
h
l
o
r
o
h
y
d
r
i
n
N
C
1
.
0
E
+
0
0
2
.
6
E
-
0
1
1
.
0
E
+
0
1
2
.
6
E
+
0
0
1
.
0
E
+
0
2
2
.
6
E
+
0
1
8
.
0
E
+
0
2
60
2
9
7
Eth
y
l
e
t
h
e
r
X
N
C
7
.
0
E
+
0
2
2
.
3
E
+
0
2
7
.
0
E
+
0
3
2
.
3
E
+
0
3
7
.
0
E
+
0
4
2
.
3
E
+
0
4
5
.
2
E
+
0
2
14
1
7
8
6
Eth
y
l
a
c
e
t
a
t
e
X
N
C
3
.
2
E
+
0
3
8
.
7
E
+
0
2
3
.
2
E
+
0
4
8
.
7
E
+
0
3
3
.
2
E
+
0
5
8
.
7
E
+
0
4
5
.
6
E
+
0
5
10
0
4
1
4
Eth
y
l
b
e
n
z
e
n
e
C
2
.
2
E
+
0
1
5.1
E
+
0
0
2
.
2
E
+
0
2
5
.
1
E
+
0
1
2
.
2
E
+
0
3
5
.
1
E
+
0
2
7
.
0
E
+
0
2
†
75
2
1
8
Eth
y
l
e
n
e
o
x
i
d
e
C
2
.
4
E
-
0
1
1
.
4
E
-
0
1
2
.
4
E
+
0
0
1
.
4
E
+
0
0
2
.
4
E
+
0
1
1
.
4
E
+
0
1
1
.
1
E
+
0
1
97
6
3
2
Eth
y
l
m
e
t
h
a
c
r
y
l
a
t
e
X
N
C
3
.
2
E
+
0
2
6
.
8
E
+
0
1
3.
2
E
+
0
3
6
.
8
E
+
0
2
3
.
2
E
+
0
4
6
.
8
E
+
0
3
9
.
1
E
+
0
3
86
7
3
7
Flu
o
r
e
n
e
X
N
C
1
.
4
E
+
0
2
2
.
1
E
+
0
1
1
.
4
E
+
0
3
2
.
1
E
+
0
2
*
*
*
*
*
*
11
0
0
0
9
Fu
r
a
n
X
N
C
3
.
5
E
+
0
0
1
.
3
E
+
0
0
3
.
5
E
+
0
1
1
.
3
E
+
0
1
3
.
5
E
+
0
2
1
.
3
E
+
0
2
1
.
6
E
+
0
1
58
8
9
9
ga
m
m
a
-
H
C
H
(
L
i
n
d
a
n
e
)
X
C
6
.
6
E
-
0
2
5
.
5
E
-
0
3
6
.
6
E
-
0
1
5
.
5
E
-
0
2
6
.
6
E
+
0
0
5
.
5
E
-
0
1
1
.
1
E
+
0
2
76
4
4
8
H
e
p
t
a
c
h
l
o
r
C
1.9
E
-
0
2
1
.
2
E
-
0
3
1
.
9
E
-
0
1
1
.2
E
-
0
2
1
.
9
E
+
0
0
1
.
2
E
-
0
1
4
.
0
E
-
0
1
†
87
6
8
3
He
x
a
c
h
l
o
r
o
-
1
,
3
-
b
u
t
a
d
i
e
n
e
C
1
.
1
E
+
0
0
1
.
0
E
-
0
1
1.
1
E
+
0
1
1
.
0
E
+
0
0
1
.
1
E
+
0
2
1
.
0
E
+
0
1
3
.
3
E
+
0
0
11
8
7
4
1
He
x
a
c
h
l
o
r
o
b
e
n
z
e
n
e
C
5
.
3
E
-
0
2
4
.
5
E
-
0
3
5
.
3
E
-
0
1
4
.
5
E
-
0
2
5
.
3
E
+
0
0
4
.
5
E
-
0
1
1
.
0
E
+
0
0
†
77
4
7
4
He
x
a
c
h
l
o
r
o
c
y
c
l
o
p
e
n
t
a
d
i
e
n
e
N
C
2
.
0
E
-
0
1
1
.
8
E
-
0
2
2
.
0
E
+
0
0
1
.
8
E
-
0
1
2
.
0
E
+
0
1
1
.
8
E
+
0
0
5
.
0
E
+
0
1
†
67
7
2
1
He
x
a
c
h
l
o
r
o
e
t
h
a
n
e
C
6
.
1
E
+
0
0
6
.
3
E
-
0
1
6.
1
E
+
0
1
6
.
3
E
+
0
0
6
.
1
E
+
0
2
6
.
3
E
+
0
1
3
.
8
E
+
0
1
11
0
5
4
3
He
x
a
n
e
N
C
2
.
0
E
+
0
2
5
.
7
E
+
0
1
2
.
0
E
+
0
3
5
.
7
E
+
0
2
2
.
0
E
+
0
4
5
.
7
E
+
0
3
2
.
9
E
+
0
0
74
9
0
8
H
y
d
r
o
g
e
n
c
y
a
n
i
d
e
N
C
3.
0
E
+
0
0
2
.
7
E
+
0
0
3
.
0
E
+
0
1
2
.
7
E
+
0
1
3
.
0
E
+
0
2
2
.
7
E
+
0
2
5
.
5
E
+
0
2
78
8
3
1
I
s
o
b
u
t
a
n
o
l
X
N
C
1.
1
E
+
0
3
3
.
5
E
+
0
2
1
.
1
E
+
0
4
3
.
5
E
+
0
3
1
.
1
E
+
0
5
3
.
5
E
+
0
4
2
.
2
E
+
0
6
74
3
9
9
7
6
Me
r
c
u
r
y
(
e
l
e
m
e
n
t
a
l
)
N
C
3
.
0
E
-
0
1
3
.
7
E
-
0
2
3
.
0
E
+
0
0
3
.
7
E
-
0
1
3
.
0
E
+
0
1
3
.
7
E
+
0
0
6
.
8
E
-
0
1
12
6
9
8
7
Me
t
h
a
c
r
y
l
o
n
i
t
r
i
l
e
N
C
7
.
0
E-
0
1
2
.
6
E
-
0
1
7
.
0
E
+
0
0
2
.
6
E
+
0
0
7
.
0
E
+
0
1
2
.
6
E
+
0
1
6
.
9
E
+
0
1
72
4
3
5
Me
t
h
o
x
y
c
h
l
o
r
X
N
C
1
.
8
E
+
0
1
1
.
2
E
+
0
0
*
*
*
*
*
*
*
*
*
*
79
2
0
9
Me
t
h
y
l
a
c
e
t
a
t
e
X
N
C
3
.
5
E
+
0
3
1
.
2
E
+
0
3
3
.
5
E
+
0
4
1
.
2
E
+
0
4
3
.
5
E
+
0
5
1
.
2
E
+
0
5
7
.
2
E
+
0
5
96
3
3
3
Me
t
h
y
l
a
c
r
y
l
a
t
e
X
N
C
1
.
1
E
+
0
2
3
.
0
E
+
0
1
1
.
1
E
+
0
3
3
.
0
E
+
0
2
1
.
1
E
+
0
4
3
.
0
E
+
0
3
1
.
4
E
+
0
4
DR
A
F
T
Table 2b November 20, 2002
Ta
b
l
e
2
b
:
Q
u
e
s
t
i
o
n
4
G
e
n
e
r
i
c
S
c
r
e
e
n
i
n
g
L
e
v
e
l
s
a
n
d
S
u
m
m
a
r
y
S
h
e
e
t
1
Ris
k
=
1
x
1
0
-5
Ba
s
i
s
o
f
T
a
r
g
e
t
Co
n
c
e
n
t
r
a
t
i
o
n
Me
a
s
u
r
e
d
o
r
Re
a
s
o
n
a
b
l
y
Es
t
i
m
a
t
e
d
In
d
o
o
r
A
i
r
Co
n
c
e
n
t
r
a
t
i
o
n
Me
a
s
u
r
e
d
o
r
Re
a
s
o
n
a
b
l
y
Es
t
i
m
a
t
e
d
Sh
a
l
l
o
w
S
o
i
l
Ga
s
Co
n
c
e
n
t
r
a
t
i
o
n
Me
a
s
u
r
e
d
o
r
Re
a
s
o
n
a
b
l
y
Es
t
i
m
a
t
e
d
D
e
e
p
So
i
l
G
a
s
Co
n
c
e
n
t
r
a
t
i
o
n
Ta
r
g
e
t
G
r
o
u
n
d
w
a
t
e
r
C
o
n
c
e
n
t
r
a
t
i
o
n
Co
r
r
e
s
p
o
n
d
i
n
g
t
o
T
a
r
g
e
t
I
n
d
o
o
r
A
i
r
Co
n
c
e
n
t
r
a
t
i
o
n
W
h
e
r
e
t
h
e
S
o
i
l
G
a
s
to
I
n
d
o
o
r
A
i
r
A
t
t
e
n
u
a
t
i
o
n
F
a
c
t
o
r
=
0.0
0
1
a
n
d
P
a
r
t
i
t
i
o
n
i
n
g
A
c
r
o
s
s
t
h
e
Wa
t
e
r
T
a
b
l
e
O
b
e
y s Henr y 's LawMeasured or Reasonably Estimated Groundwater Concentration
C=
c
a
n
c
e
r
r
i
s
k
[if
a
v
a
i
l
a
b
l
e
]
[
i
f
a
v
a
i
l
a
b
l
e
]
[
i
f
a
v
a
i
l
a
b
l
e
]
C gw [if available]
CA
S
N
o
.
C
h
e
m
i
c
a
l
N
C
=
n
o
n
c
a
n
c
e
r
r
i
s
k
(u
g
/
m
3
)
(
p
p
b
v
)
(
s
p
e
c
i
f
y
u
n
i
t
s
)
(
u
g
/
m
3
)
(
p
p
b
v
)
(
s
p
e
c
i
f
y
u
n
i
t
s
)
(
u
g
/
m
3
)
(
p
p
b
v
)
(
s
p
e
c
i
f
y
u
n
i
t
s
)
(
u
g
/
L
)
(
s
p
e
c
ify units)
Ta
r
g
e
t
I
n
d
o
o
r
A
i
r
Co
n
c
e
n
t
r
a
t
i
o
n
t
o
S
a
t
i
s
f
y
Bo
t
h
t
h
e
P
r
e
s
c
r
i
b
e
d
R
i
s
k
Le
v
e
l
a
n
d
t
h
e
T
a
r
g
e
t
H
a
z
a
r
d
In
d
e
x
[R
=
1
0
-5
, H
I
=
1
)
Ta
r
g
e
t
S
h
a
l
l
o
w
S
o
i
l
G
a
s
Co
n
c
e
n
t
r
a
t
i
o
n
C
o
r
r
e
s
p
o
n
d
i
n
g
to
T
a
r
g
e
t
I
n
d
o
o
r
A
i
r
Co
n
c
e
n
t
r
a
t
i
o
n
W
h
e
r
e
t
h
e
S
o
i
l
Ga
s
t
o
I
n
d
o
o
r
A
i
r
A
t
t
e
n
u
a
t
i
o
n
Fa
c
t
o
r
=
0
.
1
Ta
r
g
e
t
D
e
e
p
S
o
i
l
G
a
s
Co
n
c
e
n
t
r
a
t
i
o
n
Co
r
r
e
s
p
o
n
d
i
n
g
t
o
T
a
r
g
e
t
In
d
o
o
r
A
i
r
C
o
n
c
e
n
t
r
a
t
i
o
n
Wh
e
r
e
t
h
e
S
o
i
l
G
a
s
t
o
In
d
o
o
r
A
i
r
A
t
t
e
n
u
a
t
i
o
n
Fa
c
t
o
r
=
0
.
0
1
C ta
r
g
e
t
C so
i
l
-
g
a
s
C so
i
l
-
g
a
s
Co
m
p
o
u
n
d
s
wit
h
Pro
v
i
s
i
o
n
a
l
To
x
i
c
i
t
y
D
a
t
a
Ex
t
r
a
p
o
l
a
t
e
d
Fr
o
m
O
r
a
l
So
u
r
c
e
s
74
8
3
9
Me
t
h
y
l
b
r
o
m
i
d
e
N
C
5
.
0
E
+
0
0
1
.
3
E
+
0
0
5
.
0
E
+
0
1
1
.
3
E
+
0
1
5
.
0
E
+
0
2
1
.
3
E
+
0
2
2
.
0
E
+
0
1
74
8
7
3
Me
t
h
y
l
c
h
l
o
r
i
d
e
(
c
h
l
o
r
o
m
e
t
h
a
n
e
)
C
2
.
4
E
+
0
1
1
.
2
E
+
0
1
2
.
4
E
+
0
2
1
.
2
E
+
0
2
2
.
4
E
+
0
3
1
.
2
E
+
0
3
6
.
7
E
+
0
1
10
8
8
7
2
Me
t
h
y
l
c
y
c
l
o
h
e
x
a
n
e
N
C
3
.
0
E
+
0
3
7
.
5
E
+
0
2
3
.
0
E
+
0
4
7
.
5
E
+
0
3
3
.
0
E
+
0
5
7
.
5
E
+
0
4
7
.
1
E
+
0
2
74
9
5
3
Me
t
h
y
l
e
n
e
b
r
o
m
i
d
e
X
N
C
3
.
5
E
+
0
1
4
.
9
E
+
0
0
3
.
5
E
+
0
2
4
.
9
E
+
0
1
3
.
5
E
+
0
3
4
.
9
E
+
0
2
9
.
9
E
+
0
2
75
0
9
2
Me
t
h
y
l
e
n
e
c
h
l
o
r
i
d
e
C
5
.
2
E
+
0
1
1
.
5
E
+
0
1
5
.
2
E
+
0
2
1
.
5
E
+
0
2
5
.
2
E
+
0
3
1
.
5
E
+
0
3
5
.
8
E
+
0
2
78
9
3
3
Me
t
h
y
l
e
t
h
y
l
k
e
t
o
n
e
(
2
-
b
u
t
a
n
o
n
e
)
N
C
1
.
0
E
+
0
3
3
.
4
E
+
0
2
1.
0
E
+
0
4
3
.
4
E
+
0
3
1
.
0
E
+
0
5
3
.
4
E
+
0
4
4
.
4
E
+
0
5
10
8
1
0
1
Me
t
h
y
l
i
s
o
b
u
t
y
l
k
e
t
o
n
e
N
C
8
.
0
E
+
0
1
2
.
0
E
+
0
1
8
.
0
E
+
0
2
2
.
0
E
+
0
2
8
.
0
E
+
0
3
2
.
0
E
+
0
3
1
.
4
E
+
0
4
80
6
2
6
Me
t
h
y
l
m
e
t
h
a
c
r
y
l
a
t
e
N
C
7
.
0
E
+
0
2
1
.
7
E
+
0
2
7
.
0
E
+
0
3
1
.
7
E
+
0
3
7
.
0
E
+
0
4
1
.
7
E
+
0
4
5
.
1
E
+
0
4
91
5
7
6
2
-
M
e
t
h
y
l
n
a
p
h
th
a
l
e
n
e
X
N
C
7
.
0
E
+
0
1
1
.
2
E
+
0
1
7
.
0
E
+
0
2
1
.
2
E
+
0
2
7
.
0
E
+
0
3
1
.
2
E
+
0
3
3
.
3
E
+
0
3
16
3
4
0
4
4
MT
B
E
N
C
3
.
0
E
+
0
3
8
.
3
E
+
0
2
3
.
0
E
+
0
4
8
.
3
E
+
0
3
3
.
0
E
+
0
5
8
.
3
E
+
0
4
1
.
2
E
+
0
5
10
8
3
8
3
m-X
y
l
e
n
e
X
N
C
7
.
0
E
+
0
3
1
.
6
E
+
0
3
7
.
0
E
+
0
4
1
.
6
E
+
0
4
7
.
0
E
+
0
5
1
.
6
E
+
0
5
2
.
3
E
+
0
4
91
2
0
3
N
a
p
h
t
h
a
l
e
n
e
N
C
3.
0
E
+
0
0
5
.
7
E
-
0
1
3
.
0
E
+
0
1
5
.
7
E
+
0
0
3
.
0
E
+
0
2
5
.
7
E
+
0
1
1
.
5
E
+
0
2
10
4
5
1
8
n-
B
u
t
y
l
b
e
n
z
e
n
e
X
N
C
1
.
4
E
+
0
2
2.6
E
+
0
1
1
.
4
E
+
0
3
2
.
6
E
+
0
2
1
.
4
E
+
0
4
2
.
6
E
+
0
3
2
.
6
E
+
0
2
98
9
5
3
N
i
t
r
o
b
e
n
z
e
n
e
N
C
2.
0
E
+
0
0
4
.
0
E
-
0
1
2
.
0
E
+
0
1
4
.
0
E
+
0
0
2
.
0
E
+
0
2
4
.
0
E
+
0
1
2
.
0
E
+
0
3
79
4
6
9
2
-
N
i
t
r
o
p
r
o
p
a
n
e
C
9
.
0
E
-
0
3
2
.5
E
-
0
3
9
.
0
E
-
0
2
2
.
5
E
-
0
2
9.
0
E
-
0
1
2
.
5
E
-
0
1
1
.
8
E
+
0
0
92
4
1
6
3
N-
N
i
t
r
o
s
o
-
d
i
-
n
-
b
u
t
y
l
a
m
i
n
e
C
1
.
5
E
-
0
2
2.4
E
-
0
3
1
.
5
E
-
0
1
2
.
4
E
-
0
2
1
.
5
E
+
0
0
2
.
4
E
-
0
1
1
.
2
E
+
0
0
10
3
6
5
1
n
-
P
r
o
p
y
l
b
e
n
z
e
n
e
X
N
C
1.
4
E
+
0
2
2
.
8
E
+
0
1
1
.
4
E
+
0
3
2
.
8
E
+
0
2
1
.
4
E
+
0
4
2
.
8
E
+
0
3
3
.
2
E
+
0
2
88
7
2
2
o-
N
i
t
r
o
t
o
l
u
e
n
e
X
N
C
3
.
5
E
+
0
1
6
.
2
E
+
0
0
3
.
5
E
+
0
2
6
.
2
E
+
0
1
3
.
5
E
+
0
3
6
.
2
E
+
0
2
6
.
8
E
+
0
4
95
4
7
6
o
-
X
y
l
e
n
e
X
N
C
7
.
0
E
+
0
3
1
.
6
E
+
0
3
7
.
0
E
+
0
4
1
.
6
E
+
0
4
7
.
0
E
+
0
5
1
.
6
E
+
0
5
3
.
3
E
+
0
4
10
6
4
2
3
p
-
X
y
l
e
n
e
X
N
C
7
.
0
E
+
0
3
1
.
6
E
+
0
3
7
.
0
E
+
0
4
1
.
6
E
+
0
4
7
.
0
E
+
0
5
1
.
6
E
+
0
5
2
.
2
E
+
0
4
12
9
0
0
0
P
y
r
e
n
e
X
N
C
1.
1
E
+
0
2
1
.
3
E
+
0
1
*
*
*
*
*
*
*
*
*
*
13
5
9
8
8
s
e
c
-
B
u
t
y
l
b
e
n
z
e
n
e
X
N
C
1.
4
E
+
0
2
2
.
6
E
+
0
1
1
.
4
E
+
0
3
2
.
6
E
+
0
2
1
.
4
E
+
0
4
2
.
6
E
+
0
3
2
.
5
E
+
0
2
10
0
4
2
5
Sty
r
e
n
e
N
C
1
.
0
E
+
0
3
2
.
3
E
+
0
2
1
.
0
E
+
0
4
2
.
3
E
+
0
3
1
.
0
E
+
0
5
2
.
3
E
+
0
4
8
.
9
E
+
0
3
98
0
6
6
te
r
t
-
B
u
t
y
l
b
e
n
z
e
n
e
X
N
C
1
.
4
E
+
0
2
2
.
6
E
+
0
1
1.
4
E
+
0
3
2
.
6
E
+
0
2
1
.
4
E
+
0
4
2
.
6
E
+
0
3
2
.
9
E
+
0
2
63
0
2
0
6
1,
1
,
1
,
2
-
T
e
t
r
a
c
h
l
o
r
o
e
t
h
a
n
e
C
3
.
3
E
+
0
0
4
.
8
E
-
0
1
3.
3
E
+
0
1
4
.
8
E
+
0
0
3
.
3
E
+
0
2
4
.
8
E
+
0
1
3
.
3
E
+
0
1
79
3
4
5
1,
1
,
2
,
2
-
T
e
t
r
a
c
h
l
o
r
o
e
t
h
a
n
e
C
4
.
2
E
-
0
1
6
.
1
E
-
0
2
4
.
2
E
+
0
0
6
.
1
E
-
0
1
4
.
2
E
+
0
1
6
.
1
E
+
0
0
3
.
0
E
+
0
1
12
7
1
8
4
Te
t
r
a
c
h
l
o
r
o
e
t
h
y
l
e
n
e
C
8
.
1
E
+
0
0
1
.
2
E
+
0
0
8
.
1
E
+
0
1
1.2
E
+
0
1
8
.
1
E
+
0
2
1
.
2
E
+
0
2
1
.
1
E
+
0
1
10
8
8
8
3
To
l
u
e
n
e
N
C
4
.
0
E
+
0
2
1
.
1
E
+
0
2
4
.
0
E
+
0
3
1
.
1
E
+
0
3
4
.
0
E
+
0
4
1
.
1
E
+
0
4
1
.
5
E
+
0
3
15
6
6
0
5
tr
a
n
s
-
1
,
2
-
D
i
c
h
l
o
r
o
e
t
h
y
l
e
n
e
X
N
C
7
.
0
E
+
0
1
1.8
E
+
0
1
7
.
0
E
+
0
2
1
.
8
E
+
0
2
7
.
0
E
+
0
3
1
.
8
E
+
0
3
1
.
8
E
+
0
2
76
1
3
1
1,
1
,
2
-
T
r
i
c
h
l
o
r
o
-
1
,
2
,
2
-
t
r
i
f
l
u
o
r
o
e
t
h
a
n
e
N
C
3
.
0
E
+
0
4
3
.
9
E
+
0
3
3
.
0
E
+
0
5
3
.
9
E
+
0
4
3
.
0
E
+
0
6
3
.
9
E
+
0
5
1
.
5
E
+
0
3
12
0
8
2
1
1,
2
,
4
-
T
r
i
c
h
l
o
r
o
b
e
n
z
e
n
e
N
C
2
.
0
E
+
0
2
2.7
E
+
0
1
2
.
0
E
+
0
3
2
.
7
E
+
0
2
2
.
0
E
+
0
4
2
.
7
E
+
0
3
3
.
4
E
+
0
3
79
0
0
5
1,
1
,
2
-
T
r
i
c
h
l
o
r
o
e
t
h
a
n
e
C
1
.
5
E
+
0
0
2
.
8
E
-
0
1
1
.
5
E
+
0
1
2
.
8
E
+
0
0
1
.
5
E
+
0
2
2
.
8
E
+
0
1
4
.
1
E
+
0
1
71
5
5
6
1,
1
,
1
-
T
r
i
c
h
l
o
r
o
e
t
h
a
n
e
N
C
2
.
2
E
+
0
3
4
.
0
E
+
0
2
2
.
2
E
+
0
4
4.0
E
+
0
3
2
.
2
E
+
0
5
4
.
0
E
+
0
4
3
.
1
E
+
0
3
79
0
1
6
Tri
c
h
l
o
r
o
e
t
h
y le
n
e
††
X
C
2
.
2
E
-
0
1
4
.
1
E
-
0
2
2
.
2
E
+
0
0
4
.
1
E
-
0
1
2
.
2
E
+
0
1
4
.
1
E
+
0
0
5
.
0
E
+
0
0
†
75
6
9
4
Tri
c
h
l
o
r
o
f
l
u
o
r
o
m
e
t
h
a
n
e
N
C
7
.
0
E
+
0
2
1
.
2
E
+
0
2
7
.
0
E
+
0
3
1
.
2
E
+
0
3
7
.
0
E
+
0
4
1
.
2
E
+
0
4
1
.
8
E
+
0
2
96
1
8
4
1,
2
,
3
-
T
r
i
c
h
l
o
r
o
p
r
o
p
a
n
e
N
C
4
.
9
E
+
0
0
8
.
1
E
-
0
1
4.
9
E
+
0
1
8
.
1
E
+
0
0
4
.
9
E
+
0
2
8
.
1
E
+
0
1
2
.
9
E
+
0
2
95
6
3
6
1,
2
,
4
-
T
r
i
m
e
t
h
y
l
b
e
n
z
e
n
e
N
C
6
.
0
E
+
0
0
1
.
2
E
+
0
0
6
.
0
E
+
0
1
1
.
2
E
+
0
1
6
.
0
E
+
0
2
1
.
2
E
+
0
2
2
.
4
E
+
0
1
DR
A
F
T
Table 2b November 20, 2002
Ta
b
l
e
2
b
:
Q
u
e
s
t
i
o
n
4
G
e
n
e
r
i
c
S
c
r
e
e
n
i
n
g
L
e
v
e
l
s
a
n
d
S
u
m
m
a
r
y
S
h
e
e
t
1
Ris
k
=
1
x
1
0
-5
Ba
s
i
s
o
f
T
a
r
g
e
t
Co
n
c
e
n
t
r
a
t
i
o
n
Me
a
s
u
r
e
d
o
r
Re
a
s
o
n
a
b
l
y
Es
t
i
m
a
t
e
d
In
d
o
o
r
A
i
r
Co
n
c
e
n
t
r
a
t
i
o
n
Me
a
s
u
r
e
d
o
r
Re
a
s
o
n
a
b
l
y
Es
t
i
m
a
t
e
d
Sh
a
l
l
o
w
S
o
i
l
Ga
s
Co
n
c
e
n
t
r
a
t
i
o
n
Me
a
s
u
r
e
d
o
r
Re
a
s
o
n
a
b
l
y
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t
i
m
a
t
e
d
D
e
e
p
So
i
l
G
a
s
Co
n
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n
t
r
a
t
i
o
n
Ta
r
g
e
t
G
r
o
u
n
d
w
a
t
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r
C
o
n
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n
t
r
a
t
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o
n
Co
r
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s
p
o
n
d
i
n
g
t
o
T
a
r
g
e
t
I
n
d
o
o
r
A
i
r
Co
n
c
e
n
t
r
a
t
i
o
n
W
h
e
r
e
t
h
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o
i
l
G
a
s
to
I
n
d
o
o
r
A
i
r
A
t
t
e
n
u
a
t
i
o
n
F
a
c
t
o
r
=
0.0
0
1
a
n
d
P
a
r
t
i
t
i
o
n
i
n
g
A
c
r
o
s
s
t
h
e
Wa
t
e
r
T
a
b
l
e
O
b
e
y s Henr y 's LawMeasured or Reasonably Estimated Groundwater Concentration
C=
c
a
n
c
e
r
r
i
s
k
[if
a
v
a
i
l
a
b
l
e
]
[
i
f
a
v
a
i
l
a
b
l
e
]
[
i
f
a
v
a
i
l
a
b
l
e
]
C gw [if available]
CA
S
N
o
.
C
h
e
m
i
c
a
l
N
C
=
n
o
n
c
a
n
c
e
r
r
i
s
k
(u
g
/
m
3
)
(
p
p
b
v
)
(
s
p
e
c
i
f
y
u
n
i
t
s
)
(
u
g
/
m
3
)
(
p
p
b
v
)
(
s
p
e
c
i
f
y
u
n
i
t
s
)
(
u
g
/
m
3
)
(
p
p
b
v
)
(
s
p
e
c
i
f
y
u
n
i
t
s
)
(
u
g
/
L
)
(
s
p
e
c
ify units)
Ta
r
g
e
t
I
n
d
o
o
r
A
i
r
Co
n
c
e
n
t
r
a
t
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n
t
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a
t
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s
f
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Bo
t
h
t
h
e
P
r
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s
c
r
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b
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d
R
i
s
k
Le
v
e
l
a
n
d
t
h
e
T
a
r
g
e
t
H
a
z
a
r
d
In
d
e
x
[R
=
1
0
-5
, H
I
=
1
)
Ta
r
g
e
t
S
h
a
l
l
o
w
S
o
i
l
G
a
s
Co
n
c
e
n
t
r
a
t
i
o
n
C
o
r
r
e
s
p
o
n
d
i
n
g
to
T
a
r
g
e
t
I
n
d
o
o
r
A
i
r
Co
n
c
e
n
t
r
a
t
i
o
n
W
h
e
r
e
t
h
e
S
o
i
l
Ga
s
t
o
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n
d
o
o
r
A
i
r
A
t
t
e
n
u
a
t
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o
n
Fa
c
t
o
r
=
0
.
1
Ta
r
g
e
t
D
e
e
p
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o
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l
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a
s
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n
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n
t
r
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r
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s
p
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n
d
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n
g
t
o
T
a
r
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e
t
In
d
o
o
r
A
i
r
C
o
n
c
e
n
t
r
a
t
i
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n
Wh
e
r
e
t
h
e
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o
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l
G
a
s
t
o
In
d
o
o
r
A
i
r
A
t
t
e
n
u
a
t
i
o
n
Fa
c
t
o
r
=
0
.
0
1
C ta
r
g
e
t
C so
i
l
-
g
a
s
C so
i
l
-
g
a
s
Co
m
p
o
u
n
d
s
wit
h
Pro
v
i
s
i
o
n
a
l
To
x
i
c
i
t
y
D
a
t
a
Ex
t
r
a
p
o
l
a
t
e
d
Fr
o
m
O
r
a
l
So
u
r
c
e
s
10
8
6
7
8
1,
3
,
5
-
T
r
i
m
e
t
h
y
l
b
e
n
z
e
n
e
N
C
6
.
0
E
+
0
0
1
.
2
E
+
0
0
6
.
0
E
+
0
1
1
.
2
E
+
0
1
6
.
0
E
+
0
2
1
.
2
E
+
0
2
2
.
5
E
+
0
1
10
8
0
5
4
Vin
y
l
a
c
e
t
a
t
e
N
C
2
.
0
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a
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DR
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F
T
Table 2b November 20, 2002
Ta
b
l
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2
c
:
Q
u
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s
t
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o
n
4
G
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Ris
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-6
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a
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b
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y s Henr y 's LawMeasured or Reasonably Estimated Groundwater Concentration
C=
c
a
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r
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[if
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a
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a
b
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[
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C gw [if available]
CA
S
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C
h
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=
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(u
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s
p
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c
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3
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p
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3
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(
s
p
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c
ify units)
83
3
2
9
A
c
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t
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X
N
C
2.
1
E
+
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3
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3
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1
2
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1
E
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0
3
3
.
3
E
+
0
2
2
.
1
E
+
0
4
3
.
3
E
+
0
3
*
*
75
0
7
0
A
c
e
t
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l
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1
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0
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1
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1
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1
6
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6
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3
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4
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2
67
6
4
1
A
c
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t
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3.
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1
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1
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3
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2
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5
75
0
5
8
A
c
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it
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6
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+
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3
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6
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1
6
.
0
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2
3
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6
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0
2
6
.
0
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0
3
3
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6
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3
4
.
2
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4
98
8
6
2
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c
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5
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7
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1
3
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3
7
.
1
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2
3
.
5
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0
4
7
.
1
E
+
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3
8
.
0
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5
10
7
0
2
8
Ac
r
o
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n
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2
.
0
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-
0
2
8
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7
E
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0
3
2
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0
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0
1
8
.
7
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2
2
.
0
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0
8
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7
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1
4
.
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0
0
10
7
1
3
1
Ac
r
y
l
o
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i
t
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3
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0
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1
.
7
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2
3
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6
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1
1
.
7
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1
3
.
6
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+
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.
7
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8
.
5
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+
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0
30
9
0
0
2
Ald
r
i
n
C
5
.
0
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0
4
3
.
3
E
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0
5
5
.
0
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-
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3
3
.
3
E
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0
4
5
.
0
E
-
0
2
3
.
3
E
-
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3
7
.
1
E
-
0
2
31
9
8
4
6
a
l
p
h
a
-
H
C
H
(a
l
p
h
a
-
B
H
C
)
C
1
.
4
E
-
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3
1
.
1
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4
1
.
4
E
-
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2
1
.1
E
-
0
3
1
.
4
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-
0
1
1
.
1
E
-
0
2
3
.
1
E
+
0
0
10
0
5
2
7
B
e
n
z
a
l
d
e
h
y
d
e
X
N
C
3.
5
E
+
0
2
8
.
1
E
+
0
1
3
.
5
E
+
0
3
8
.
1
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+
0
2
3
.
5
E
+
0
4
8
.
1
E
+
0
3
3
.
6
E
+
0
5
71
4
3
2
B
e
n
z
e
n
e
C
3
.
1
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1
9
.
8
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2
3.
1
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+
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9
.
8
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1
3
.
1
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+
0
1
9
.
8
E
+
0
0
5
.
0
E
+
0
0
†
20
5
9
9
2
Be
n
z
o
(
b
)
f
l
u
o
r
a
n
t
h
e
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e
X
C
1
.
2
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1
.
1
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1
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1
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2
1
.
2
E
+
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.
1
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1
*
*
10
0
4
4
7
Be
n
z
y
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c
h
l
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C
5
.
0
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2
9
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E
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3
5
.
0
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1
9
.
7
E
-
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2
5
.
0
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+
0
0
9
.
7
E
-
0
1
3
.
0
E
+
0
0
91
5
8
7
b
e
t
a
-
C
h
l
o
r
o
n
a
p
h
t
h
a
l
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C
2.
8
E
+
0
2
4
.
2
E
+
0
1
2
.
8
E
+
0
3
4
.
2
E
+
0
2
2
.
8
E
+
0
4
4
.
2
E
+
0
3
*
*
92
5
2
4
Bip
h
e
n
y
l
X
N
C
1
.
8
E
+
0
2
2
.
8
E
+
0
1
1
.
8
E
+
0
3
2
.
8
E
+
0
2
1
.
8
E
+
0
4
2
.
8
E
+
0
3
*
*
11
1
4
4
4
Bis
(
2
-
c
h
l
o
r
o
e
t
h
y
l
)
e
t
h
e
r
C
7
.
4
E
-
0
3
1
.
3
E
-
0
3
7
.
4
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-
0
2
1
.
3
E
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0
2
7
.
4
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-
0
1
1
.
3
E
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0
1
1
.
0
E
+
0
1
10
8
6
0
1
Bis
(
2
-
c
h
l
o
r
o
i
s
o
p
r
o
p
y
l
)
e
t
h
e
r
C
2
.
4
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-
0
1
3
.
5
E
-
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2
2
.
4
E
+
0
0
3
.
5
E
-
0
1
2
.
4
E
+
0
1
3
.
5
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0
0
5
.
1
E
+
0
1
54
2
8
8
1
Bis
(
c
h
l
o
r
o
m
e
t
h
y
l
)
e
t
h
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r
C
3
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9
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5
8.4
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6
3
.
9
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-
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4
8
.
4
E
-
0
5
3
.
9
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0
3
8
.
4
E
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0
4
4
.
5
E
-
0
3
75
2
7
4
Br
o
m
o
d
i
c
h
l
o
r
o
m
e
t
h
a
n
e
X
C
1
.
4
E
-
0
1
2.1
E
-
0
2
1
.
4
E
+
0
0
2
.
1
E
-
0
1
1
.
4
E
+
0
1
2
.
1
E
+
0
0
2
.
1
E
+
0
0
75
2
5
2
Br
o
m
o
f
o
r
m
C
2.
2
E
+
0
0
2
.
1
E
-
0
1
2
.
2
E
+
0
1
2
.
1
E
+
0
0
2
.
2
E
+
0
2
2
.
1
E
+
0
1
8
.
3
E
-
0
3
10
6
9
9
0
1,
3
-
B
u
t
a
d
i
e
n
e
C
8
.
7
E
-
0
3
3
.
9
E
-
0
3
8
.
7
E
-
0
2
3
.
9
E
-
0
2
8
.
7
E
-
0
1
3
.
9
E
-
0
1
2
.
9
E
-
0
3
75
1
5
0
Ca
r
b
o
n
d
i
s
u
l
f
i
d
e
N
C
7
.
0
E
+
0
2
2
.
2
E
+
0
2
7
.
0
E
+
0
3
2
.
2
E
+
0
3
7
.
0
E
+
0
4
2
.
2
E
+
0
4
5
.
6
E
+
0
2
56
2
3
5
C
a
r
b
o
n
te
t
r
a
c
h
l
o
r
i
d
e
C
1
.
6
E
-
0
1
2
.
6
E
-
0
2
1
.
6
E
+
0
0
2
.
6
E
-
0
1
1
.
6
E
+
0
1
2
.
6
E
+
0
0
5
.
0
E
+
0
0
†
57
7
4
9
C
h
l
o
r
d
a
n
e
C
2
.
4
E
-
0
2
1
.
5
E
-
0
3
2
.
4
E
-0
1
1
.
5
E
-
0
2
2
.
4
E
+
0
0
1
.
5
E
-
0
1
1
.
2
E
+
0
1
12
6
9
9
8
2-
C
h
l
o
r
o
-
1
,
3
-
b
u
t
a
d
i
e
n
e
(
c
h
l
o
r
o
p
r
e
n
e
)
N
C
7
.
0
E
+
0
0
1.9
E
+
0
0
7
.
0
E
+
0
1
1
.
9
E
+
0
1
7
.
0
E
+
0
2
1
.
9
E
+
0
2
1
.
4
E
+
0
1
10
8
9
0
7
C
h
l
o
r
o
b
e
n
z
e
n
e
N
C
6.
0
E
+
0
1
1
.
3
E
+
0
1
6
.
0
E
+
0
2
1
.
3
E
+
0
2
6
.
0
E
+
0
3
1
.
3
E
+
0
3
3
.
9
E
+
0
2
10
9
6
9
3
1
-
C
h
l
o
r
o
b
u
t
a
n
e
X
N
C
1.
4
E
+
0
3
3
.
7
E
+
0
2
1
.
4
E
+
0
4
3
.
7
E
+
0
3
1
.
4
E
+
0
5
3
.
7
E
+
0
4
2
.
0
E
+
0
3
12
4
4
8
1
Ch
l
o
r
o
d
i
b
r
o
m
o
m
e
t
h
a
n
e
X
C
1
.
0
E
-
0
1
1.2
E
-
0
2
1
.
0
E
+
0
0
1
.
2
E
-
0
1
1
.
0
E
+
0
1
1
.
2
E
+
0
0
3
.
2
E
+
0
0
75
4
5
6
Ch
l
o
r
o
d
i
f
l
u
o
r
o
m
e
t
h
a
n
e
N
C
5
.
0
E
+
0
4
1
.
4
E
+
0
4
5
.
0
E
+
0
5
1
.
4
E
+
0
5
*
*
*
*
*
*
75
0
0
3
Ch
l
o
r
o
e
t
h
a
n
e
(
e
t
h
y
l
c
h
l
o
r
i
d
e
)
N
C
1
.
0
E
+
0
4
3
.
8
E
+
0
3
1
.
0
E
+
0
5
3
.
8
E
+
0
4
1
.
0
E
+
0
6
3
.
8
E
+
0
5
2
.
8
E
+
0
4
67
6
6
3
Ch
l
o
r
o
f
o
r
m
C
1
.
1
E-
0
1
2
.
2
E
-
0
2
1
.
1
E
+
0
0
2
.
2
E
-
0
1
1
.
1
E
+
0
1
2
.
2
E
+
0
0
8
.
0
E
+
0
1
†
95
5
7
8
2
-
C
h
l
o
r
o
p
h
e
n
o
l
X
N
C
1.
8
E
+
0
1
3
.
3
E
+
0
0
1
.
8
E
+
0
2
3
.
3
E
+
0
1
1
.
8
E
+
0
3
3
.
3
E
+
0
2
1
.
1
E
+
0
3
75
2
9
6
2
-
C
h
l
o
r
o
p
r
o
p
a
n
e
N
C
1.
0
E
+
0
2
3
.
2
E
+
0
1
1
.
0
E
+
0
3
3
.
2
E
+
0
2
1
.
0
E
+
0
4
3
.
2
E
+
0
3
1
.
7
E
+
0
2
21
8
0
1
9
C
h
r
y
s
e
n
e
X
C
1.
2
E
+
0
0
1
.
2
E
-
0
1
1
.
2
E
+
0
1
1
.
2
E
+
0
0
*
*
*
*
*
*
15
6
5
9
2
cis
-
1
,
2
-
D
i
c
h
l
o
r
o
e
t
h
y
l
e
n
e
X
N
C
3
.
5
E
+
0
1
8
.
8
E
+
0
0
3.
5
E
+
0
2
8
.
8
E
+
0
1
3
.
5
E
+
0
3
8
.
8
E
+
0
2
2
.
1
E
+
0
2
12
3
7
3
9
C
r
o
t
o
n
a
l
d
eh
y
d
e
(
2
-
b
u
t
e
n
a
l
)
X
C
4
.
5
E
-
0
3
1
.
6
E
-
0
3
4
.
5
E
-
0
2
1
.6
E
-
0
2
4
.
5
E
-
0
1
1
.
6
E
-
0
1
5
.
6
E
+
0
0
98
8
2
8
Cu
m
e
n
e
N
C
4
.
0
E
+
0
2
8
.
1
E
+
0
1
4
.
0
E
+
0
3
8
.
1
E
+
0
2
4
.
0
E
+
0
4
8
.
1
E
+
0
3
8
.
4
E
+
0
0
Ta
r
g
e
t
I
n
d
o
o
r
A
i
r
Co
n
c
e
n
t
r
a
t
i
o
n
t
o
S
a
t
i
s
f
y
Bo
t
h
t
h
e
P
r
e
s
c
r
i
b
e
d
R
i
s
k
Le
v
e
l
a
n
d
t
h
e
T
a
r
g
e
t
H
a
z
a
r
d
In
d
e
x
[R
=
1
0
-6
, H
I
=
1
)
Ta
r
g
e
t
S
h
a
l
l
o
w
G
a
s
Co
n
c
e
n
t
r
a
t
i
o
n
C
o
r
r
e
s
p
o
n
d
i
n
g
to
T
a
r
g
e
t
I
n
d
o
o
r
A
i
r
Co
n
c
e
n
t
r
a
t
i
o
n
W
h
e
r
e
t
h
e
S
o
i
l
Ga
s
t
o
I
n
d
o
o
r
A
i
r
A
t
t
e
n
u
a
t
i
o
n
Fa
c
t
o
r
=
0
.
1
Ta
r
g
e
t
D
e
e
p
S
o
i
l
G
a
s
Co
n
c
e
n
t
r
a
t
i
o
n
Co
r
r
e
s
p
o
n
d
i
n
g
t
o
T
a
r
g
e
t
In
d
o
o
r
A
i
r
C
o
n
c
e
n
t
r
a
t
i
o
n
Wh
e
r
e
t
h
e
S
o
i
l
G
a
s
t
o
In
d
o
o
r
A
i
r
A
t
t
e
n
u
a
t
i
o
n
Fa
c
t
o
r
=
0
.
0
1
C ta
r
g
e
t
C so
i
l
-
g
a
s
C so
i
l
-
g
a
s
Co
m
p
o
u
n
d
s
wit
h
Pro
v
i
s
i
o
n
a
l
To
x
i
c
i
t
y
D
a
t
a
Ex
t
r
a
p
o
l
a
t
e
d
Fr
o
m
O
r
a
l
So
u
r
c
e
s
DR
A
F
T
Table 2c November 20, 2002
Ta
b
l
e
2
c
:
Q
u
e
s
t
i
o
n
4
G
e
n
e
r
i
c
S
c
r
e
e
n
i
n
g
L
e
v
e
l
s
a
n
d
S
u
m
m
a
r
y
S
h
e
e
t
1
Ris
k
=
1
x
1
0
-6
Ba
s
i
s
o
f
T
a
r
g
e
t
Co
n
c
e
n
t
r
a
t
i
o
n
Me
a
s
u
r
e
d
o
r
Re
a
s
o
n
a
b
l
y
Es
t
i
m
a
t
e
d
In
d
o
o
r
A
i
r
Co
n
c
e
n
t
r
a
t
i
o
n
Me
a
s
u
r
e
d
o
r
Re
a
s
o
n
a
b
l
y
Es
t
i
m
a
t
e
d
Sh
a
l
l
o
w
S
o
i
l
Ga
s
Co
n
c
e
n
t
r
a
t
i
o
n
Me
a
s
u
r
e
d
o
r
Re
a
s
o
n
a
b
l
y
Es
t
i
m
a
t
e
d
D
e
e
p
So
i
l
G
a
s
Co
n
c
e
n
t
r
a
t
i
o
n
Ta
r
g
e
t
G
r
o
u
n
d
w
a
t
e
r
C
o
n
c
e
n
t
r
a
t
i
o
n
Co
r
r
e
s
p
o
n
d
i
n
g
t
o
T
a
r
g
e
t
I
n
d
o
o
r
A
i
r
Co
n
c
e
n
t
r
a
t
i
o
n
W
h
e
r
e
t
h
e
S
o
i
l
G
a
s
to
I
n
d
o
o
r
A
i
r
A
t
t
e
n
u
a
t
i
o
n
F
a
c
t
o
r
=
0.0
0
1
a
n
d
P
a
r
t
i
t
i
o
n
i
n
g
A
c
r
o
s
s
t
h
e
Wa
t
e
r
T
a
b
l
e
O
b
e
y s Henr y 's LawMeasured or Reasonably Estimated Groundwater Concentration
C=
c
a
n
c
e
r
r
i
s
k
[if
a
v
a
i
l
a
b
l
e
]
[
i
f
a
v
a
i
l
a
b
l
e
]
[
i
f
a
v
a
i
l
a
b
l
e
]
C gw [if available]
CA
S
N
o
.
C
h
e
m
i
c
a
l
N
C
=
n
o
n
c
a
n
c
e
r
r
i
s
k
(u
g
/
m
3
)
(
p
p
b
v
)
(
s
p
e
c
i
f
y
u
n
i
t
s
)
(
u
g
/
m
3
)
(
p
p
b
v
)
(
s
p
e
c
i
f
y
u
n
i
t
s
)
(
u
g
/
m
3
)
(
p
p
b
v
)
(
s
p
e
c
i
f
y
u
n
i
t
s
)
(
u
g
/
L
)
(
s
p
e
c
ify units)
Ta
r
g
e
t
I
n
d
o
o
r
A
i
r
Co
n
c
e
n
t
r
a
t
i
o
n
t
o
S
a
t
i
s
f
y
Bo
t
h
t
h
e
P
r
e
s
c
r
i
b
e
d
R
i
s
k
Le
v
e
l
a
n
d
t
h
e
T
a
r
g
e
t
H
a
z
a
r
d
In
d
e
x
[R
=
1
0
-6
, H
I
=
1
)
Ta
r
g
e
t
S
h
a
l
l
o
w
G
a
s
Co
n
c
e
n
t
r
a
t
i
o
n
C
o
r
r
e
s
p
o
n
d
i
n
g
to
T
a
r
g
e
t
I
n
d
o
o
r
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i
r
Co
n
c
e
n
t
r
a
t
i
o
n
W
h
e
r
e
t
h
e
S
o
i
l
Ga
s
t
o
I
n
d
o
o
r
A
i
r
A
t
t
e
n
u
a
t
i
o
n
Fa
c
t
o
r
=
0
.
1
Ta
r
g
e
t
D
e
e
p
S
o
i
l
G
a
s
Co
n
c
e
n
t
r
a
t
i
o
n
Co
r
r
e
s
p
o
n
d
i
n
g
t
o
T
a
r
g
e
t
In
d
o
o
r
A
i
r
C
o
n
c
e
n
t
r
a
t
i
o
n
Wh
e
r
e
t
h
e
S
o
i
l
G
a
s
t
o
In
d
o
o
r
A
i
r
A
t
t
e
n
u
a
t
i
o
n
Fa
c
t
o
r
=
0
.
0
1
C ta
r
g
e
t
C so
i
l
-
g
a
s
C so
i
l
-
g
a
s
Co
m
p
o
u
n
d
s
wit
h
Pro
v
i
s
i
o
n
a
l
To
x
i
c
i
t
y
D
a
t
a
Ex
t
r
a
p
o
l
a
t
e
d
Fr
o
m
O
r
a
l
So
u
r
c
e
s
72
5
5
9
D
D
E
X
C
2
.
5
E
-
0
2
1.9
E
-
0
3
2
.
5
E
-
0
1
1
.
9
E
-
0
2
2
.
5
E
+
0
0
1
.
9
E
-
0
1
2
.
9
E
+
0
1
13
2
6
4
9
Dib
e
n
z
o
f
u
r
a
n
X
N
C
1
.
4
E
+
0
1
2
.
0
E
+
0
0
1
.
4
E
+
0
2
2
.
0
E
+
0
1
1
.
4
E
+
0
3
2
.
0
E
+
0
2
*
*
96
1
2
8
1,
2
-
D
i
b
r
o
m
o
-
3
-
c
h
l
o
r
o
p
r
o
p
a
n
e
N
C
2
.
0
E
-
0
1
2
.
1
E
-
0
2
2
.
0
E
+
0
0
2
.
1
E
-
0
1
2
.
0
E
+
0
1
2
.
1
E
+
0
0
3
.
3
E
+
0
1
10
6
9
3
4
1,
2
-
D
i
b
r
o
m
o
e
t
h
a
n
e
(
e
t
h
y
l
e
n
e
d
i
b
r
o
m
i
d
e
)
C
1
.
1
E
-
0
2
1
.
4
E
-
0
3
1
.
1
E
-
0
1
1
.
4
E
-
0
2
1
.
1
E
+
0
0
1
.
4
E
-
0
1
3
.
6
E
-
0
1
54
1
7
3
1
1,
3
-
D
i
c
h
l
o
r
o
b
e
n
z
e
n
e
X
N
C
1
.
1
E
+
0
2
1.7
E
+
0
1
1
.
1
E
+
0
3
1
.
7
E
+
0
2
1
.
1
E
+
0
4
1
.
7
E
+
0
3
8
.
3
E
+
0
2
95
5
0
1
1,
2
-
D
i
c
h
l
o
r
o
b
e
n
z
e
n
e
N
C
2
.
0
E
+
0
2
3.3
E
+
0
1
2
.
0
E
+
0
3
3
.
3
E
+
0
2
2
.
0
E
+
0
4
3
.
3
E
+
0
3
2
.
6
E
+
0
3
10
6
4
6
7
1,
4
-
D
i
c
h
l
o
r
o
b
e
n
z
e
n
e
N
C
8
.
0
E
+
0
2
1.3
E
+
0
2
8
.
0
E
+
0
3
1
.
3
E
+
0
3
8
.
0
E
+
0
4
1
.
3
E
+
0
4
8
.
2
E
+
0
3
75
7
1
8
Dic
h
l
o
r
o
d
i
f
l
u
o
r
o
m
e
t
h
a
n
e
N
C
2
.
0
E
+
0
2
4
.
0
E
+
0
1
2
.
0
E
+
0
3
4
.
0
E
+
0
2
2
.
0
E
+
0
4
4
.
0
E
+
0
3
1
.
4
E
+
0
1
75
3
4
3
1,
1
-
D
i
c
h
l
o
r
o
e
t
h
a
n
e
N
C
5
.
0
E
+
0
2
1.2
E
+
0
2
5
.
0
E
+
0
3
1
.
2
E
+
0
3
5
.
0
E
+
0
4
1
.
2
E
+
0
4
2
.
2
E
+
0
3
10
7
0
6
2
1,
2
-
D
i
c
h
l
o
r
o
e
t
h
a
n
e
C
9
.
4
E
-
0
2
2
.
3
E
-
0
2
9
.
4
E
-
0
1
2
.
3
E
-
0
1
9
.
4
E
+
0
0
2
.
3
E
+
0
0
5
.
0
E
+
0
0
†
75
3
5
4
1
,
1
-
D
i
ch
l
o
r
o
e
t
h
y
l
e
n
e
N
C
2
.
0
E
+
0
2
5
.
0
E
+
0
1
2
.
0
E
+
0
3
5
.
0
E
+
0
2
2
.
0
E
+
0
4
5
.
0
E
+
0
3
1
.
9
E
+
0
2
78
8
7
5
1,
2
-
D
i
c
h
l
o
r
o
p
r
o
p
a
n
e
N
C
4
.
0
E
+
0
0
8
.
7
E
-
0
1
4.
0
E
+
0
1
8
.
7
E
+
0
0
4
.
0
E
+
0
2
8
.
7
E
+
0
1
3
.
5
E
+
0
1
54
2
7
5
6
1,
3
-
D
i
c
h
l
o
r
o
p
r
o
p
e
n
e
C
6
.
1
E
-
0
1
1
.
3
E
-
0
1
6.
1
E
+
0
0
1
.
3
E
+
0
0
6
.
1
E
+
0
1
1
.
3
E
+
0
1
8
.
4
E
-
0
1
60
5
7
1
Die
l
d
r
i
n
C
5
.
3
E
-
0
4
3
.
4
E
-
0
5
5
.3
E
-
0
3
3
.
4
E
-
0
4
5
.
3
E
-
0
2
3
.
4
E
-
0
3
8
.
6
E
-
0
1
11
5
2
9
7
En
d
o
s
u
l
f
a
n
X
N
C
2
.
1
E
+
0
1
1
.
3
E
+
0
0
2.
1
E
+
0
2
1
.
3
E
+
0
1
*
*
*
*
*
*
10
6
8
9
8
Ep
i
c
h
l
o
r
o
h
y
d
r
i
n
N
C
1
.
0
E
+
0
0
2
.
6
E
-
0
1
1
.
0
E
+
0
1
2
.
6
E
+
0
0
1
.
0
E
+
0
2
2
.
6
E
+
0
1
8
.
0
E
+
0
2
60
2
9
7
Eth
y
l
e
t
h
e
r
X
N
C
7
.
0
E
+
0
2
2
.
3
E
+
0
2
7
.
0
E
+
0
3
2
.
3
E
+
0
3
7
.
0
E
+
0
4
2
.
3
E
+
0
4
5
.
2
E
+
0
2
14
1
7
8
6
Eth
y
l
a
c
e
t
a
t
e
X
N
C
3
.
2
E
+
0
3
8
.
7
E
+
0
2
3
.
2
E
+
0
4
8
.
7
E
+
0
3
3
.
2
E
+
0
5
8
.
7
E
+
0
4
5
.
6
E
+
0
5
10
0
4
1
4
Eth
y
l
b
e
n
z
e
n
e
C
2
.
2
E
+
0
0
5
.
1
E
-
0
1
2.
2
E
+
0
1
5
.
1
E
+
0
0
2
.
2
E
+
0
2
5
.
1
E
+
0
1
7
.
0
E
+
0
2
†
75
2
1
8
Eth
y
l
e
n
e
o
x
i
d
e
C
2
.
4
E
-
0
2
1
.
4
E
-
0
2
2
.
4
E
-
0
1
1
.
4
E
-
0
1
2
.
4
E
+
0
0
1
.
4
E
+
0
0
1
.
1
E
+
0
0
97
6
3
2
Eth
y
l
m
e
t
h
a
c
r
y
l
a
t
e
X
N
C
3
.
2
E
+
0
2
6
.
8
E
+
0
1
3.
2
E
+
0
3
6
.
8
E
+
0
2
3
.
2
E
+
0
4
6
.
8
E
+
0
3
9
.
1
E
+
0
3
86
7
3
7
Flu
o
r
e
n
e
X
N
C
1
.
4
E
+
0
2
2
.
1
E
+
0
1
1
.
4
E
+
0
3
2
.
1
E
+
0
2
*
*
*
*
*
*
11
0
0
0
9
Fu
r
a
n
X
N
C
3
.
5
E
+
0
0
1
.
3
E
+
0
0
3
.
5
E
+
0
1
1
.
3
E
+
0
1
3
.
5
E
+
0
2
1
.
3
E
+
0
2
1
.
6
E
+
0
1
58
8
9
9
ga
m
m
a
-
H
C
H
(
L
i
n
d
a
n
e
)
X
C
6
.
6
E
-
0
3
5
.
5
E
-
0
4
6
.
6
E
-
0
2
5
.
5
E
-
0
3
6
.
6
E
-
0
1
5
.
5
E
-
0
2
1
.
1
E
+
0
1
76
4
4
8
H
e
p
t
a
c
h
l
o
r
C
1.9
E
-
0
3
1
.
2
E
-
0
4
1
.
9
E
-
0
2
1
.
2
E-
0
3
1
.
9
E
-
0
1
1
.
2
E
-
0
2
4
.
0
E
-
0
1
†
87
6
8
3
He
x
a
c
h
l
o
r
o
-
1
,
3
-
b
u
t
a
d
i
e
n
e
C
1
.
1
E
-
0
1
1
.
0
E
-
0
2
1
.
1
E
+
0
0
1
.
0
E
-
0
1
1
.
1
E
+
0
1
1
.
0
E
+
0
0
3
.
3
E
-
0
1
11
8
7
4
1
He
x
a
c
h
l
o
r
o
b
e
n
z
e
n
e
C
5
.
3
E
-
0
3
4
.
5
E
-
0
4
5
.
3
E
-
0
2
4
.5
E
-
0
3
5
.
3
E
-
0
1
4
.
5
E
-
0
2
1
.
0
E
+
0
0
†
77
4
7
4
He
x
a
c
h
l
o
r
o
c
y
c
l
o
p
e
n
t
a
d
i
e
n
e
N
C
2
.
0
E
-
0
1
1
.
8
E
-
0
2
2
.
0
E
+
0
0
1
.
8
E
-
0
1
2
.
0
E
+
0
1
1
.
8
E
+
0
0
5
.
0
E
+
0
1
†
67
7
2
1
He
x
a
c
h
l
o
r
o
e
t
h
a
n
e
C
6
.
1
E
-
0
1
6
.
3
E
-
0
2
6
.
1
E
+
0
0
6
.
3
E
-
0
1
6
.
1
E
+
0
1
6
.
3
E
+
0
0
3
.
8
E
+
0
0
11
0
5
4
3
He
x
a
n
e
N
C
2
.
0
E
+
0
2
5
.
7
E
+
0
1
2
.
0
E
+
0
3
5
.
7
E
+
0
2
2
.
0
E
+
0
4
5
.
7
E
+
0
3
2
.
9
E
+
0
0
74
9
0
8
H
y
d
r
o
g
e
n
c
y
a
n
i
d
e
N
C
3.
0
E
+
0
0
2
.
7
E
+
0
0
3
.
0
E
+
0
1
2
.
7
E
+
0
1
3
.
0
E
+
0
2
2
.
7
E
+
0
2
5
.
5
E
+
0
2
78
8
3
1
I
s
o
b
u
t
a
n
o
l
X
N
C
1.
1
E
+
0
3
3
.
5
E
+
0
2
1
.
1
E
+
0
4
3
.
5
E
+
0
3
1
.
1
E
+
0
5
3
.
5
E
+
0
4
2
.
2
E
+
0
6
74
3
9
9
7
6
Me
r
c
u
r
y
(
e
l
e
m
e
n
t
a
l
)
N
C
3
.
0
E
-
0
1
3
.
7
E
-
0
2
3
.
0
E
+
0
0
3
.
7
E
-
0
1
3
.
0
E
+
0
1
3
.
7
E
+
0
0
6
.
8
E
-
0
1
12
6
9
8
7
Me
t
h
a
c
r
y
l
o
n
i
t
r
i
l
e
N
C
7
.
0
E-
0
1
2
.
6
E
-
0
1
7
.
0
E
+
0
0
2
.
6
E
+
0
0
7
.
0
E
+
0
1
2
.
6
E
+
0
1
6
.
9
E
+
0
1
72
4
3
5
Me
t
h
o
x
y
c
h
l
o
r
X
N
C
1
.
8
E
+
0
1
1
.
2
E
+
0
0
*
*
*
*
*
*
*
*
*
*
79
2
0
9
Me
t
h
y
l
a
c
e
t
a
t
e
X
N
C
3
.
5
E
+
0
3
1
.
2
E
+
0
3
3
.
5
E
+
0
4
1
.
2
E
+
0
4
3
.
5
E
+
0
5
1
.
2
E
+
0
5
7
.
2
E
+
0
5
96
3
3
3
Me
t
h
y
l
a
c
r
y
l
a
t
e
X
N
C
1
.
1
E
+
0
2
3
.
0
E
+
0
1
1
.
1
E
+
0
3
3
.
0
E
+
0
2
1
.
1
E
+
0
4
3
.
0
E
+
0
3
1
.
4
E
+
0
4
DR
A
F
T
Table 2c November 20, 2002
Ta
b
l
e
2
c
:
Q
u
e
s
t
i
o
n
4
G
e
n
e
r
i
c
S
c
r
e
e
n
i
n
g
L
e
v
e
l
s
a
n
d
S
u
m
m
a
r
y
S
h
e
e
t
1
Ris
k
=
1
x
1
0
-6
Ba
s
i
s
o
f
T
a
r
g
e
t
Co
n
c
e
n
t
r
a
t
i
o
n
Me
a
s
u
r
e
d
o
r
Re
a
s
o
n
a
b
l
y
Es
t
i
m
a
t
e
d
In
d
o
o
r
A
i
r
Co
n
c
e
n
t
r
a
t
i
o
n
Me
a
s
u
r
e
d
o
r
Re
a
s
o
n
a
b
l
y
Es
t
i
m
a
t
e
d
Sh
a
l
l
o
w
S
o
i
l
Ga
s
Co
n
c
e
n
t
r
a
t
i
o
n
Me
a
s
u
r
e
d
o
r
Re
a
s
o
n
a
b
l
y
Es
t
i
m
a
t
e
d
D
e
e
p
So
i
l
G
a
s
Co
n
c
e
n
t
r
a
t
i
o
n
Ta
r
g
e
t
G
r
o
u
n
d
w
a
t
e
r
C
o
n
c
e
n
t
r
a
t
i
o
n
Co
r
r
e
s
p
o
n
d
i
n
g
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2
-
t
r
i
f
l
u
o
r
o
e
t
h
a
n
e
N
C
3
.
0
E
+
0
4
3
.
9
E
+
0
3
3
.
0
E
+
0
5
3
.
9
E
+
0
4
3
.
0
E
+
0
6
3
.
9
E
+
0
5
1
.
5
E
+
0
3
12
0
8
2
1
1,
2
,
4
-
T
r
i
c
h
l
o
r
o
b
e
n
z
e
n
e
N
C
2
.
0
E
+
0
2
2.7
E
+
0
1
2
.
0
E
+
0
3
2
.
7
E
+
0
2
2
.
0
E
+
0
4
2
.
7
E
+
0
3
3
.
4
E
+
0
3
79
0
0
5
1,
1
,
2
-
T
r
i
c
h
l
o
r
o
e
t
h
a
n
e
C
1
.
5
E
-
0
1
2
.
8
E
-
0
2
1
.
5
E
+
0
0
2
.
8
E
-
0
1
1
.
5
E
+
0
1
2
.
8
E
+
0
0
5
.
0
E
+
0
0
†
71
5
5
6
1,
1
,
1
-
T
r
i
c
h
l
o
r
o
e
t
h
a
n
e
N
C
2
.
2
E
+
0
3
4
.
0
E
+
0
2
2
.
2
E
+
0
4
4.0
E
+
0
3
2
.
2
E
+
0
5
4
.
0
E
+
0
4
3
.
1
E
+
0
3
79
0
1
6
Tri
c
h
l
o
r
o
e
t
h
y le
n
e
††
X
C
2
.
2
E
-
0
2
4
.
1
E
-
0
3
2
.
2
E
-
0
1
4
.
1
E
-
0
2
2
.
2
E
+
0
0
4
.
1
E
-
0
1
5
.
0
E
+
0
0
†
75
6
9
4
Tri
c
h
l
o
r
o
f
l
u
o
r
o
m
e
t
h
a
n
e
N
C
7
.
0
E
+
0
2
1
.
2
E
+
0
2
7
.
0
E
+
0
3
1
.
2
E
+
0
3
7
.
0
E
+
0
4
1
.
2
E
+
0
4
1
.
8
E
+
0
2
96
1
8
4
1,
2
,
3
-
T
r
i
c
h
l
o
r
o
p
r
o
p
a
n
e
N
C
4
.
9
E
+
0
0
8
.
1
E
-
0
1
4.
9
E
+
0
1
8
.
1
E
+
0
0
4
.
9
E
+
0
2
8
.
1
E
+
0
1
2
.
9
E
+
0
2
95
6
3
6
1,
2
,
4
-
T
r
i
m
e
t
h
y
l
b
e
n
z
e
n
e
N
C
6
.
0
E
+
0
0
1
.
2
E
+
0
0
6
.
0
E
+
0
1
1
.
2
E
+
0
1
6
.
0
E
+
0
2
1
.
2
E
+
0
2
2
.
4
E
+
0
1
DR
A
F
T
Table 2c November 20, 2002
Ta
b
l
e
2
c
:
Q
u
e
s
t
i
o
n
4
G
e
n
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r
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c
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c
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l
s
a
n
d
S
u
m
m
a
r
y
S
h
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t
1
Ris
k
=
1
x
1
0
-6
Ba
s
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f
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t
Co
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Me
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a
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y s Henr y 's LawMeasured or Reasonably Estimated Groundwater Concentration
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c
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C gw [if available]
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s
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ify units)
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r
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a
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d
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, H
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Ta
r
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t
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h
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n
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r
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t
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o
m
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r
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r
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s
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-
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r
i
m
e
t
h
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e
n
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6
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2
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y
l
a
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a
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.
0
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5
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1
2
.
0
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3
5
.
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0
2
2
.
0
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+
0
4
5
.
7
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0
3
9
.
6
E
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0
3
75
0
1
4
Vin
y
l
c
h
l
o
r
i
d
e
(
c
h
l
o
r
o
e
t
h
e
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e
)
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2
.
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E
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0
1
1
.
1
E
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0
1
2
.
8
E
+
0
0
1
.
1
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+
0
0
2
.
8
E
+
0
1
1
.
1
E
+
0
1
2.0
E
+
0
0
†
1 A
F
=
0
.
1
f
o
r
S
h
a
l
l
o
w
S
o
i
l
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a
s
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a
r
g et
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o
n
c
e
n
t
r
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t
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o
n
A
F
=
0
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0
1
f
o
r
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e
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p
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a
s
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a
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=
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f
o
r
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r
o
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n
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t
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**
T
a
r
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e
t
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t
r
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o
n
(
p
a
t
h
w
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n
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o
m
p
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e
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e
)
††
T
h
e
t
a
r
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e
t
c
o
n
c
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t
r
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t
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(
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S
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P
A
,
2
0
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)
.
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h
e
s
l
o
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a
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a
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o
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o
d
o
l
o
g
y
,
h
o
w
e
v
e
r
t
h
e
T
C
E
a
ssessment is still undergoing
re
v
i
e
w
.
A
s
a
r
e
s
u
l
t
,
t
h
e
s
l
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f
a
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d
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t
a
r
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t
c
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t
r
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t
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a
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T
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E
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a
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r
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.
(
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e
e
A
p
p
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n
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.
)
* H
e
a
l
t
h
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b
a
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t
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t
b
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e
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a
x
i
m
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m
p
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s
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c
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c
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l
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n
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e
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t
r
a
t
i
o
n
(
p
a
t
h
w
a
y
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n
c
o
m
p
l
e
t
e
)
†
T
h
e
t
a
r
g
e
t
g
r
o
u
n
d
w
a
t
e
r
c
o
n
c
e
n
t
r
a
t
i
o
n
i
s
t
h
e
M
C
L
.
(
T
h
e
M
C
L
f
o
r
c
h
l
o
r
o
f
o
r
m
i
s
t
h
e
M
C
L
f
o
r
t
o
t
a
l
T
r
i
h
a
l
o
m
e
t
h
a
n
e
s
.
T
h
e
M
C
L
l
i
s
t
e
d
fo
r
m
-
X
y
l
e
n
e
,
o
-
X
y
l
e
n
e
,
a
n
d
p
-
X
y
l
e
n
e
i
s
t
h
e
M
C
L
f
o
r
t
o
t
a
l
X
y
l
e
n
e
s
.
)
DR
A
F
T
Table 2c November 20, 2002