24017_Cameron Village Condos_EA_20201105

#C-1269 Engineering #C-245 Geology
Brownfields Assessment Report
Cameron Village Condominiums
1801 Cameron Street
Raleigh, North Carolina
Brownfields Project ID No. 24017-20-092
H&H Job No. CAM-011 November 5, 2020
11/5/2020
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Brownfields Assessment Report Cameron Village Condominiums
Raleigh, North Carolina Brownfields Project No. 24017-20-092 H&H Job No. CAM-011
Table of Contents
1.0 Introduction .............................................................................................................................1
2.0 Site Background ......................................................................................................................2
2.1 Previous Environmental Assessments ...................................................................................2
3.0 Brownfields Assessment Activities ........................................................................................5
4.0 Receptor Survey ......................................................................................................................7
5.0 Background Soil Assessment Activities ................................................................................9
5.1 Background Soil Sampling Activities ...................................................................................9
5.2 Background Soil Sampling Analytical Results ...................................................................10
6.0 Vapor Intrusion Assessment Activities ...............................................................................11
6.1 Soil Gas Sampling Activities ...............................................................................................11
6.2 Soil Gas Analytical Results .................................................................................................13
6.3 Evaluation of Vapor Intrusion Assessment Results ............................................................14
7.0 Summary and Conclusions...................................................................................................16
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List of Tables

Table 1 Summary of Background Soil Analytical Data
Table 2 Summary of Soil Gas Analytical Data

List of Figures
Figure 1 Site Location Map
Figure 2 Site Map
Figure 3 Receptor Survey Map
Figure 4 Sample Location Map

List of Appendices

Appendix A Brownfields Receptor Survey Form
Appendix B Boring Logs
Appendix C Laboratory Analytical Reports
Appendix D July 2020 DEQ Risk Calculator Results
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Brownfields Assessment Report Cameron Village Condominiums
Raleigh, North Carolina Brownfields Project No. 24017-20-092 H&H Job No. CAM-011
1.0 Introduction

Hart & Hickman, PC (H&H) has prepared this Brownfields Assessment Report for the Cameron
Village Condominiums property (Brownfields Project No. 24017-20-092) located at
1801 Cameron Street in Raleigh, Wake County, North Carolina (Site or subject Site). The Site is
comprised of one parcel of land (Wake County Parcel Identification No. [PIN]
1704125771) that totals approximately 4.91 acres in size. A Site location map is provided as
Figure 1.

Proposed redevelopment for the Brownfields property includes razing the existing Site buildings
and constructing two new buildings for mixed-use development that may consist of amenity and
retail spaces and up to 400 residential units. A Site map with the proposed redevelopment plans
is shown on Figure 2.

A brief discussion of the Site history and previous environmental assessment activities conducted
on the Brownfields property is provided in the following sections.

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2.0 Site Background

The Site was developed in 1949 with 12 multi-tenant condominiums, asphalt parking areas,
concrete sidewalks, and landscaped areas. Since the initial development, the Site has remained
residential, with the exception of a periodic use of a condominium building for office space. Up
until the 1970s, the condominiums utilized heating oil to fuel the building’s heating systems. The
heating oil was stored in on-Site underground storage tanks (USTs) located in the vicinity of four
boiler rooms. The heating systems were reported to have been converted from heating oil to
natural gas in the 1970s and the USTs were either removed or drained and filled in place at the
time of conversation. H&H was unable to obtain documentation of UST closure and/or
abandonment procedures. A Site map referencing the boiler room locations is included as Figure
2.

A brief discussion of previous assessment activities completed at the Site is provided below.

2.1 Previous Environmental Assessments

In December 2019, H&H completed a Phase I Environmental Assessment (ESA) at the subject
Site. The results of the December 2019 ESA identified the following potential environmental
concerns in connection with the Site:

• Potential impacts associated with historically used on-Site heating oil USTs; and
• On-Site groundwater impacts associated with the former Medlin-Davis Cleaners
dry-cleaning facility at 2028 Cameron Street.

Under the purview of the North Carolina Department of Environmental Quality (DEQ)
Dry-Cleaning Solvent Cleanup Act (DSCA) Program, groundwater monitoring well MW-20 was
installed in 2010 in the northern portion of the Site to evaluate groundwater conditions associated
with an upgradient release of dry-cleaning solvent constituents from the former Medlin-Davis
Cleaners (DSCA identification number DC920013). Sampling events completed for well MW-20
indicated detections of the dry-cleaning solvent tetrachloroethylene (PCE) at concentrations (up to
6.4 micrograms per liter [μg/L]) above the DEQ 15A North Carolina Administrative Code (NCAC)
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02L .0202 Groundwater Quality Standard (2L Standard). The DSCA Program concluded that the
chlorinated volatile organic compound (cVOC) groundwater plume associated with the off-Site
Medlin-Davis Cleaners release is generally stable or is decreasing, and therefore, concentrations
detected at the Site are unlikely to increase beyond those detected during sampling events.
Monitoring well MW-20 was abandoned in June 2016 as part of DSCA monitoring well closure
activities.

A closure plan was developed as part of a December 10, 2013 Risk Assessment and a November 6,
2015 Risk Management Plan. Results of the risk assessment indicated impacts could be managed
using land-use controls for the source property and 11 downgradient properties, including the
Brownfields property. The Risk Assessment included evaluation of vapor intrusion potential for
the Site based on groundwater analytical data for well MW-20. The results of the vapor intrusion
evaluation indicated no significant risk of vapor intrusion for the Site. Land-use controls were
subsequently implemented for the impacted properties, including the Site. The land-use control for
the Site consists of a Notice of Dry Cleaning Solvent Remediation (NDCSR) filed on the deed for
the Site property prohibiting groundwater use. The Medlin-Davis Cleaners received a No Further
Action (NFA) determination on May 5, 2016.

It should be noted that there have been some changes to vapor intrusion evaluation procedures
since the 2013 Risk Assessment. To confirm that groundwater concentrations do not pose a vapor
intrusion risk for the Site, H&H utilized the May 2019 DEQ Risk Calculator to evaluate vapor
intrusion for the groundwater to indoor air pathway using the highest concentrations of detected
VOCs from former on-Site monitoring well MW-20. The results of the evaluation did not indicate
exceedances of acceptable residential risk levels (cumulative lifetime incremental cancer risk
[LICR] threshold of 1 x 10-4 and cumulative non-carcinogenic hazard index [HI] threshold of 1).

The Site received eligibility into the DEQ Brownfields Program via a Letter of Eligibility dated
June 12, 2020. On August 6, 2020, CUSA N.C. Holdings, L.P. (the Brownfields Prospective
Developer [PD]), PD’s environmental attorney, and H&H participated in a conference call with
DEQ Brownfields personal to discuss Site history, areas of potential environmental concern,
proposed redevelopment plans, potential data gaps, and the scope of Brownfields assessment
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activities needed to address the data gaps. As requested by DEQ during the meeting, on August
21, 2020, H&H submitted a Brownfields Assessment Work Plan (Work Plan) to conduct
assessment activities to evaluate potential impacts within the redevelopment area. The Work Plan
was approved by DEQ Brownfields in an email dated September 2, 2020.

A summary of Brownfields assessment activities is provided in the following sections.

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3.0 Brownfields Assessment Activities

In September 2020, H&H completed Brownfields assessment activities at the Site in accordance
with the DEQ Brownfields approved Work Plan. The assessment activities included vapor
intrusion assessment activities at the Site to evaluate conditions for potential impacts associated
with historical on-Site and off-Site operations. The assessment activities also included background
soil sampling to assist in future soil management during redevelopment. In addition, receptor
survey activities were completed to obtain information about land use, water supply, basements,
underground utilities, drains, and surface water bodies in the vicinity of the Site.

Prior to conducting the field activities, H&H contacted North Carolina 811, the public utility
locator, to mark subsurface utilities located on the Site. H&H also contracted with a private utility
locator to screen proposed sample locations for subgrade utilities not marked by the public locator.
Additionally, soil gas locations were hand cleared to 5 feet below ground surface (ft bgs) to further
screen the boring locations for the presence of subsurface utilities.

During the utility locate, a ground penetrating radar (GPR) survey was completed to investigate
whether USTs are or were present in the vicinity of the boiler rooms. Results of the GPR survey
did not identify any subsurface anomalies (tanks and/or fill material) that would be typical of
USTs. If USTs are encountered during redevelopment activities, they can be managed in
accordance with a Brownfields approved Environmental Management Plan (EMP).

The assessment activities were conducted in general accordance with DEQ Inactive Hazardous
Sites Branch (IHSB) Guidelines for Assessment and Cleanup (Guidelines) dated January 2020, the
DEQ Division of Waste Management (DWM) Vapor Intrusion Guidance (VI Guidance) dated
March 2018, and the most recent versions of the U.S. Environmental Protection Agency (EPA)
Region IV Science and Ecosystem Support Division (SESD) Field Branches Quality System and
Technical Procedures guidance. Investigative derived waste (IDW) generated during the
assessment activities was thin spread on-Site in accordance with DEQ IHSB Guidelines.

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A summary of receptor survey results is provided in Section 4.0; details of background soil
assessment activities are provided in Section 5.0; details of vapor intrusion assessment activities
are provided in Section 6.0; and summary and conclusions based on the results of the assessment
activities are provided in Section 7.0.

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4.0 Receptor Survey

On September 8, 2020, H&H conducted receptor survey activities at the Site and in the nearby
area. The receptor survey included a pedestrian and vehicular survey to obtain information about
land use, potential water supply wells, basements, utility manways and chases, storm sewers, other
underground utilities, drains, and surface water bodies located within a 1,500-ft radius of the Site.
H&H also contacted the Wake County Department of Environmental Services and the online DEQ
Source Water Assessment Program (SWAP) geographic information system map to obtain
information regarding potable water supply wells located within the search radius. In addition,
H&H identified land use, zoning, underground utilities using Wake County online resources. The
Brownfields Property Receptor Survey Form is included as Appendix A, and a Receptor Survey
Map is provided as Figure 3. The results of the receptor survey are summarized below.

Zoning
The subject Site is zoned as “Residential Mixed Use” (RX-3); the adjacent property to the east is
zoned as “Residential-6” (R-6); the adjacent properties to the south are zoned as R-6 and “Office
Mixed Use” (OX-3-UL); and the adjacent properties to the west and north are zoned as
“Commercial Mixed Use” (CX-5-UL).

Municipal Water Availability
Municipal water is supplied by the City of Raleigh Public Utilities Department – Raleigh Water
and is available to the Site and surrounding area. H&H did not identify sources of public drinking
water within 1,500-ft of the Site based on the DEQ SWAP geographic information system map.
The City of Raleigh and Wake County obtain their water from the Neuse River and/or Cape Fear
River basins, which includes Falls Lake, Lake Wheeler, Benson Lake, and Jordan Lake. The
closest drinking water source is an intake for Lake Wheeler and is located approximately 6.8 miles
southwest of the Site.

Service area maps are not made available by Raleigh Water; however, H&H observed municipal
water meters and fire hydrants for the Site and surrounding properties.

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Water Supply Wells
H&H contacted the Wake County Department of Environmental Health and conducted a
pedestrian and vehicular survey of nearby properties to identify potential water supply wells within
a 1,500-ft radius of the Site. No private water supply wells were identified within a 1,500-ft radius
of the Site during the pedestrian and vehicular survey of the area. According to the information
provided by the Wake County Department of Environmental Health, no active or historic private
water supply wells were identified.

Surface Water Bodies
No surface water bodies were identified on the Site. The nearest surface water body is an unnamed
tributary of Pigeon House Branch, a DEQ Class C; Nutrient Sensitive Waters (NSW) surface water
body, located approximately 80 feet east of the Site. No other surface water bodies were identified
within a 1,500-ft radius of the Site.

Subsurface Structures
H&H contacted North Carolina 811, the public utility locator, to mark subsurface utilities located
on the Site and conducted a visual reconnaissance in the Site area to identify potential subsurface
structures within 100 ft of the subject Site. H&H observed evidence of subsurface utilities,
including sanitary sewer, municipal water, and natural gas adjacent to the subject Site. The Site’s
municipal water, sanitary sewer, and natural gas lines connect to the municipal utility system at
multiple access points along Bellwood Drive. H&H did observe structures with obvious
basements within a 1,500-ft radius of the Site, which include the Site buildings, residences along
Park Drive and W. Johnson Street and a parking deck along Clark Avenue. According to the real
estate records, multiple residences with basements or partial basements are present in the vicinity
of the Site.

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5.0 Background Soil Assessment Activities

On September 9, 2020, H&H contracted Regional Probing Services to advance two soil borings
(SB-1 and SB-2) to assess background conditions at the Site. Based on the results of the
geophysical survey, additional soil samples were not collected to evaluate potential impacts
associated with the former heating oil UST system(s). The approximate locations of the proposed
background soil borings are depicted on Figure 4 and were advanced in the following locations:

• In the north-central portion of the Site (SB-1) within the proposed northern building
footprint; and
• In the proposed courtyard/pool area in the southern portion of the Site (SB-2).

Details of the background soil sampling activities and results are provided in the following
sections.

5.1 Background Soil Sampling Activities
A decontaminated hand auger was used to advance two soil borings to depths of approximately 2
ft bgs at the locations outlined above. Soil samples were logged for lithological description and
field screened for indications of potential impacts by observation for staining, unusual odors, and
the presence of volatile organic vapors using a calibrated photoionization detector (PID). Based
on field observations and field screening, soil samples were collected from each soil boring from
approximately 1-2 ft bgs. Boring logs including lithologic descriptions and field screening results
are provided in Appendix B.

Soil samples selected for laboratory analysis were collected directly into laboratory supplied
sample containers and labeled with the sample identification, date, time, and requested analysis
and placed in a laboratory supplied cooler with ice. The soil samples were submitted to Con-test
Analytical Laboratory (Contest), a North Carolina certified laboratory, under standard chain of
custody protocols for analysis of Resource Conservation and Recovery Act (RCRA) metals plus
hexavalent chromium by EPA Methods 6020/7471/7199. Estimated values (J-flag reporting) were
requested of the laboratory.
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Following sampling activities, the soil sample locations were estimated using a hand-held global
positioning system (GPS) unit. Both soil borings were properly abandoned and the surfaces were
repaired similar to pre-sampling conditions.

5.2 Background Soil Sampling Analytical Results
A tabular summary of soil sample analytical results is presented in Table 1 and the laboratory
analytical report and chain of custody record are provided in Appendix C. The laboratory
analytical results were compared to the DEQ Residential and Industrial/Commercial Preliminary
Soil Remediation Goals (PSRGs) dated July 2020. In addition to the PSRGs, metals results were
compared to published background ranges for North Carolina soils published in Elements in North
American Soils authored by Dragun and Chekiri (2005).

As expected, naturally occurring levels of several metals were detected at concentrations above
the laboratory method detection limits in each background soil sample. Arsenic was detected at a
concentration of 1.1 milligrams per kilogram (mg/kg) in the soil sample collected from SB-2,
which is above the Residential PSRG (0.68 mg/kg) but below the Industrial/Commercial PSRG
(3.0 mg/kg) and within published background levels for North Carolina soils. No other metals
were detected in the background samples at concentrations exceeding Residential and/or
Industrial/Commercial PSRGs.

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6.0 Vapor Intrusion Assessment Activities

On September 9 through 10, 2020, H&H completed vapor intrusion assessment activities at the
Site to evaluate the potential for structural vapor intrusion into proposed future buildings.
Specifically, seven (7) soil gas monitoring points (SG-1S/D and SG-2 through SG-6) were
installed throughout the proposed building footprints and in select areas associated with the former
heating oil UST system(s). The approximate locations of the soil gas samples are depicted on
Figure 4.

Details of the vapor intrusion assessment activities and results are provided in the following
sections.

6.1 Soil Gas Sampling Activities
The soil gas monitoring points were installed by advancing a boring via decontaminated
stainless-steel hand auger and a direct-push technology (DPT) drill rig to depths ranging from
approximately 8 to 14 ft bgs. With the exception of soil gas point SG-1D (installed to a depth of
approximately 14 ft bgs), soil gas points were installed to a depth of approximately 8 ft bgs. At
each location, a 6-inch 0.010-inch stainless steel screen was set at the base of the boring and
connected to the ground surface with ¼-inch Teflon® tubing. The annular space of the boring was
then filled with filter sand followed by a bentonite seal to prevent short-circuiting of air from the
surface. Soil gas monitoring points were allowed to equilibrate for at least two hours following
sample point installation.

As part of soil gas sample collections procedures, “shut-in” tests and leak checks were performed
at each soil gas monitoring point. The purpose of the shut-in test (and helium leak check described
below) is to ensure that short circuiting with ambient air does not occur during sampling. A
description of the shut-in test and helium leak testing procedures is provided below.

The shut-in test was conducted by connecting an in-line airflow controller with a vacuum gauge
to a laboratory supplied 1-liter stainless steel Summa® canister and sealing the flow regulator with
a laboratory provided brass nut and ferrule assembly to form an air-tight seal. The airflow
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regulator was pre-set by the laboratory to regulate the soil gas intake rate to less than approximately
200 milliliters per minute. Once the sampling train was “closed”, the sample valve on the Summa®
canister was opened and the reading on the vacuum gauge was recorded. The Summa® canister
sample valve was then closed, and the vacuum gauge was observed to ensure no vacuum loss
occurs. Because the vacuum reading remained the same, the shut-in test was considered successful
for each soil gas monitoring point.

Following successful shut-in tests, leak checks were conducted by constructing a shroud around
the sample train at each sampling point and flooding the air with helium gas. Helium
concentrations inside the shroud were measured using a calibrated helium gas detector and
maintained at concentrations of approximately 15% to 30% for the duration of the leak check.
Using a syringe and three-way valve, the Teflon® sample tubing was purged and soil gas was
collected outside of the shroud into a Tedlar® bag. Soil gas in the Tedlar® bag was analyzed using
the helium gas detector to ensure that helium concentrations were less than 10% of the
concentration measured within the shroud. Each sample location passed the helium leak check.

Following a successful leak check, the intake valve on the Summa® canister was fully opened to
begin collection of the soil gas sample. Vacuum readings on the Summa® canister were recorded
prior to and following the sampling period to ensure adequate sample volume was collected. A
vacuum was maintained within the canisters at the conclusion of the sampling event.

After sample collection, the Summa® canister valves were closed prior to disassembly of the
sampling train. The Summa® canisters were then placed in laboratory supplied shipping
containers, properly labeled, and shipped under standard chain-of-custody protocols to Contest
and for analysis of VOCs by EPA Method TO-15. As discussed below, soil gas sample SG-1S
was sent to Enthalpy Analytical, LLC and initially put on hold pending results of laboratory
analysis for soil gas sample SG-1D.

For quality assurance/quality control (QA/QC) purposes, a duplicate soil gas sample (Dup-1) was
collected from soil gas vapor monitoring point SG-1D. Upon receipt of the samples, the
laboratories recorded the final received vacuum pressures for each Summa canister. The initial,
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post-sampling, and lab receipt pressures are indicated in the laboratory analytical reports included
in Appendix C.
Upon completion of the vapor intrusion assessment activities, soil gas monitoring point locations
were estimated using a hand-held GPS unit. Soil gas monitoring points were then properly
abandoned and surfaces were repaired to generally match pre-drilling conditions.

6.2 Soil Gas Analytical Results
Results of soil gas laboratory analyses are summarized in Table 2. The laboratory analytical
reports and chain of custody records are provided in Appendix C. Soil gas sample analytical results
were compared to the July 2020 DEQ Residential and Non-Residential Sub-slab and Exterior Soil
Gas Screening Levels (SGSLs).

Laboratory analytical results indicate that low levels of VOCs were detected above laboratory
method detection limits in each soil gas sample. Of the compounds detected, PCE was detected at
concentrations exceeding the Residential SGSL of 280 micrograms per cubic meter (µg/m3) in soil
gas samples SG-2 (380 µg/m3) and SG-3 (370 µg/m3). Based on the presence of low level cVOCs
in deep soil gas sample SG-1D, H&H authorized the laboratory to analyze shallow soil gas sample
SG-1S. Laboratory analytical results for soil gas samples SG-1S and SG-1D did not indicate
detections of cVOCs associated with the off-Site Medlin-Davis Cleaners (specifically PCE and
trichloroethylene [TCE]) above Residential SGLS.

Based on information collected during DSCA assessment activities conducted in 2010,
groundwater in former on-Site monitoring well MW-20 was measured at depths ranging from
approximately 18 to 20 ft bgs. Monitoring well MW-20 was formerly located in the northern
portion of the Brownfields property and in the vicinity of recently collected soil gas samples SG-1S
and SG-1D. Comparison of VOC levels between shallow (8 ft bgs) soil gas sample SG-1S and
deep (14 ft bgs) soil gas sample SG-1D indicate generally consistent concentrations which do not
appear to increase with depth.

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Other compounds detected above Residential SGSLs include: chloroform in soil gas samples
SG-1S (18.6 µg/m3), SG-1D (up to 17 µg/m3), SG-2 (27 µg/m3), and SG-3 (40 µg/m3);
ethylbenzene in soil gas sample SG-1D (up to 53 µg/m3); and naphthalene in soil gas samples in
SG-1S (4.66 µg/m3), SG-4 (3.5 µg/m3), and SG-5 (2.9 µg/m3). No other compounds were detected
above Residential or Non-Residential SGSLs.

6.3 Evaluation of Vapor Intrusion Assessment Results
The DEQ SGSLs are conservative and based on a lifetime incremental cancer risk (LICR) for
potential carcinogenic risks of 1 x 10-6 and a non-carcinogenic hazard quotient (HQ) of 0.2 for
potential non-carcinogenic risks. The DEQ and EPA acceptable risk range for potential
carcinogenic risks is 1 x 10-4 to 1 x 10-6 or less and the acceptable level for non-carcinogenic risks
is a hazard index (HI) less than 1.

H&H utilized the July 2020 DEQ risk calculator assuming residential and non-residential land use
scenarios (based on the planned use at the Site) to evaluate calculated cumulative risks for the soil
gas to indoor air vapor intrusion pathway at the Site. H&H calculated cumulative risks using the
highest concentration of any compound detected in any gas sample collected from within the
respective proposed building footprint. In addition, H&H calculated risks from each soil gas
sample location. Results of the risk calculations are summarized below and included in Appendix
D.

Sample ID Resident Non-Residential Worker
Carcinogenic Risk Hazard Index Carcinogenic Risk Hazard Index
SG-1S 6.0E-06 2.2E-01 5.9E-07 2.1E-02
SG-1D 6.1E-06 3.3E-01 4.7E-07 2.6E-02
SG-2 8.6E-06 3.3E-01 6.5E-07 2.6E-02
SG-3 1.2E-05 3.2E-01 8.8E-07 2.6E-02
SG-4 1.3E-06 3.3E-02 2.0E-07 5.5E-03
SG-5 7.3E-07 3.2E-02 1.4E-07 4.8E-03
SG-6 9.0E-07 3.7E-02 6.8E-08 2.9E-03
Worst Case Scenario 1.5E-05 6.4E-01 1.1E-06 5.1E-02

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As shown in the table above, calculated cumulative risks do not exceed acceptable levels
(calculated cumulative carcinogenic risks between 1 x 10-6 and 1 x 10-4 and HI <1) for a resident
or non-residential worker. Based on evaluation of the July 2020 DEQ risk calculator results, there
is no evidence of a vapor intrusion concern for the proposed buildings and therefore mitigation
measures do not appear warranted.

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7.0 Summary and Conclusions

H&H has completed Brownfields assessment activities at the Cameron Village Condominiums
Brownfields property located in Raleigh, North Carolina. The assessment activities were
conducted in accordance with the DEQ Brownfields approved Work Plan dated August 21, 2020.
Brownfields assessment activities included background soil and soil gas sampling activities to
evaluate for potential impacts and to assist in management of Site media during proposed
redevelopment activities. In addition, a receptor survey was performed to obtain information about
land use, water supply, basements, underground utilities, drains, and surface water bodies in the
Site vicinity. A brief summary of the Brownfields assessment activities is provided below.

• Evidence of current or former USTs was not identified during subsurface investigation
activities.

• Results of background soil assessment activities indicate that arsenic was detected above
the Residential PSRG, but below the DEQ Industrial/Commercial PSRG and is consistent
with published background ranges for North Carolina soils.

• Results of vapor intrusion assessment activities indicate that PCE, chloroform,
ethylbenzene, and naphthalene were detected at concentrations exceeding Residential
SGSLs, but below Non-Residential SGSLs. July 2020 DEQ risk calculator results indicate
that calculated cumulative risk values for the soil gas to indoor air vapor intrusion pathway
for a residential use scenario are within the acceptable carcinogenic risk of 1 x 10-4 to
1 x 10-6 and less than a hazard index of 1.

Based on these results, additional assessment does not appear warranted and impacted media or
media disturbed during future redevelopment activities can be managed in accordance with a
Brownfields EMP. In addition, based on results of vapor intrusion assessment activities, there
does not appear to be an unacceptable vapor intrusion risk to future residential building occupants.
Table 1Summary of Background Soil Analytical DataCameron Village CondominiumsRaleigh, North CarolinaBrownfields Project No. 24017-20-092H&H Job No. CAM-011Depth (ft bgs)1-2 1-2Sample Date9/9/2020 9/9/2020LocationNorthern Portion of SiteSouthern Portion of SiteRange MeanRCRA Metals (6020/7471/7199) (mg/kg)Arsenic 0.49 1.1 0.68 3.0 1.0-18 4.8Barium 22 38 3,100 47,000 50-1000 356Cadmium<0.053 <0.05714 200 1.0 - 10* 4.3*Chromium (total) 13 29 NE NE 7.0- 300 65Trivalent Chromium 13 29 23,000 350,000 NE NEHexavalent Chromium<0.255 <0.2550.31 6.5 NE NELead 17 14 400 800 ND - 50 16Selenium<0.38 <0.4178 1,200 <0.1 - 0.8 0.42Silver<0.0340.045 J 78 1,200 NE NEMercury<0.00840.024 J 2.3 9.7 0.03 - 0.52 0.121Notes:1) North Carolina Department of Environmental Quality (DEQ) Inactive Hazardous Sites Branch (IHSB) Preliminary Soil Remediation Goals (PSRGs) (July 2020).2) Range and mean values of background metals for North Carolina soils taken from Elements in North American Soils by Dragun and Chekiri, 2005.* = Range and mean values of background metals for Southeastern USA soils.All concentrations are reported in milligrams per kilogram (mg/kg).Laboratory analytical methods are shown in parentheses.RCRA = Resource Conservation and Recovery Act; ft bgs = feet below the ground surface; NE = Not Established.J = Estimated value that is less than the laboratory reporting limit and greater than or equal to the method detection limit.Sample IDResidential PSRGs(1) Industrial/ CommercialPSRGs(1)Regional Background Metals in Soil(2)SB-1 SB-2S:\AAA-Master Projects\Camden - CAM\CAM-011 Cameron Village Condominiums\Brownfields Assistance\Brownfields Assessment\Tables\Data Tables 2020092911/2/2020Table 1 (Page 1 of 1)Hart & Hickman, PC
Table 2Summary of Soil Gas Analytical DataCameron Village CondominiumsRaleigh, North CarolinaBrownfields Project No. 24017-20-092H&H Job No. CAM-011SG-1D Dup-1Sample Date9/10/2020 9/10/2020 9/10/2020 9/10/2020 9/10/2020 9/10/2020 9/10/2020 9/10/2020LocationEastern Portion of Proposed Northern Building Southwestern Portion of Proposed Northern Building Northeastern Portion of Proposed Southern Building Central Portion of Proposed Southern Building Southcentral Portion of Proposed Southern Building VOCs (TO-15) (µg/m3)Acetone 23.6 19 J 21 19 130 45<11170 220,000 2,700,000Benzene 4.28 3.5 3.6 3.3 1.5 2.6 3.6 4.9 12 1601,3-Butadiene 0.306<0.32 <0.32 <0.32 <0.32 <0.32 <0.32 <0.323.1 412-Butanone (MEK) 8.90 5.6 J 7.9 J 4.9 J 22 J 7.8 J 9.0 J 27 35,000 440,000Carbon Disulfide 1.11<1.6 <1.6 <1.6 <1.6 <1.6 <1.6 <1.64,900 61,000Chlorobenzene 0.544<0.22 <0.22 <0.22 <0.22 <0.22 <0.22 <0.22350 4,400Chloroform18.6 16 17 27 403.1<0.24 <0.244.1 53Chloromethane 0.218<0.32 <0.32 <0.32 <0.32 <0.32 <0.32 <0.32630 7,900Cyclohexane 5.79<0.34 <0.34 <0.34 <0.34 <0.34 <0.34 <0.3442,000 530,0001,3-Dichlorobenzene 1.32<0.44 <0.44 <0.44 <0.44 <0.44 <0.44 <0.44NE NEDichlorodifluoromethane (Freon 12) 2.00<0.31 <0.31 <0.31 <0.31 <0.31 <0.31 <0.31700 8,8001,4-Dioxane 0.360 J<2.0 <2.0 <2.0 <2.0 <2.0 <2.0 <2.019 250Ethanol 85.8 66 38 56 71 89 45 36 NE NEEthyl Acetate 1.98<4.3 <4.3 <4.3 <4.3 <4.3 <4.3 <4.3490 6,100Ethylbenzene 34.945 5319 16 10 15 17 37 4904-Ethyltoluene 30.1 41 48<0.30 <0.30 <0.30 <0.30 <0.30NE NEHeptane 6.26 8.7 8.5 17 4.4 20 12 11 2,800 35,000Hexane 2.06<1.3 <1.3 <1.3 <1.3 <1.310 J<1.34,900 61,0002-Hexanone (MBK) 0.761<0.46 <0.46 <0.46 <0.46 <0.46 <0.46 <0.46210 2,600Isopropanol 3.92<4.5 <4.5 <4.55.7 J 14 J<4.5 <4.51,400 18,0004-Methyl-2-pentanone (MIBK) 17.6 14 20<0.4320 5.1 9.8 16 21,000 260,000Methylene Chloride 0.645<1.6 <1.6 <1.6 <1.6 <1.6 <1.6 <1.63,400 53,000Naphthalene4.66<0.59 <0.59 <0.59 <0.593.5 2.9<0.592.8 36Propene 3.65<1.2 <1.28.4 J<1.221<1.2 <1.2NE NEStyrene 7.46 5.5 6.7<0.24 <0.24 <0.24 <0.24 <0.247,000 88,000Tetrachloroethylene 26.7 40 46380 3705.4 9.6 12 280 3,500Tetrahydrofuran 11.3 3.6 J 5.1 J<1.518 4.0 J 7.2 24 14,000 180,000Toluene 88.1 110 120 52 34 39 39 52 35,000 440,000Trichloroethylene 1.64 1.8 2.0 1.4 1.5 0.80 J<0.40 <0.4014 180Trichlorofluoromethane (Freon 11) 3.55 3.4 J 3.3 J 2.0 J 2.4 J<0.85 <0.85 <0.85NE NE1,2,4-Trimethylbenzene 146 210 230<0.22 <0.22 <0.22 <0.22 <0.22420 5,3001,3,5-Trimethylbenzene 69.2 89 100<0.26 <0.26 <0.26 <0.26 <0.26420 5,300Xylenes, Total 212 310 351 82 78 43 71 74 700 8,800Notes:1) North Carolina Department of Environmental Quality (DEQ) Sub-Slab and Exterior Soil Gas Screening Levels (SGSLs) (July 2020).Only VOCs detected in at least one sample are shown.Compound concentrations reported to the laboratory method detection limits.Concentrations are reported in micrograms per cubic meter (µg/m3).Laboratory analytical method is shown in parentheses.Bold values indicate compounds detected above DEQ Residential SGSLs (July 2020).J = Estimated value that is less than the laboratory reporting limit and greater than or equal to the method detection limit.VOCs = volatile organic compounds; NE = not established.Non-Residential SGSL(1)Sample IDSG-2 SG-3SG-1DResidential SGSL(1)SG-1SNorthwestern Portion of Proposed Northern BuildingSG-4 SG-5 SG-6S:\AAA-Master Projects\Camden - CAM\CAM-011 Cameron Village Condominiums\Brownfields Assistance\Brownfields Assessment\Tables\Data Tables 2020092911/2/2020Table 2 (Page 1 of 1)Hart & Hickman, PC
TITLE
PROJECT
SITE LOCATION MAP
CAMERON VILLAGE CONDOMINIUMS1801 CAMERON STREETRALEIGH, NORTH CAROLINA
DATE:
JOB NO:
REVISION NO:
FIGURE:
10-21-2019 0
1CAM-011
SITE
0 2000 4000
APPROXIMATE
SCALE IN FEET
N
U.S.G.S. QUADRANGLE MAP
QUADRANGLE
7.5 MINUTE SERIES (TOPOGRAPHIC)
RALEIGH WEST, NORTH CAROLINA 2002
3921 Sunset Ridge Road, Ste. 301Raleigh, North Carolina 27607919-847-4241 (p) 919-847-4261 (f)License # C-1269 / #C-245 Geology
REVISION NO. 0
JOB NO. CAM-011
DATE: 11-2-20
FIGURE NO. 2
CAMERON VILLAGE CONDOMINIUMS1801 CAMERON STREET
RALEIGH, NORTH CAROLINA
SITE MAP
LEGEND
SITE PROPERTY BOUNDARY
PARCEL BOUNDARY
SURFACE WATER FEATURE
POLE-MOUNTED TRANSFORMER
PAD-MOUNTED TRANSFORMER
BOILER ROOM
3921 Sunset Ridge Road, Suite 301
Raleigh, North Carolina 27607
919-847-4241(p) 919-847-4261(f)
License # C-1269 / #C-245 Geology
CHIK-FIL-A
(2000 CAMERON STREET)
CHIK-FIL-A(2000 CAMERON STREET)
WALLGREENS PHARMACY(1900 CAMERON STREET)
WALLGREENS PHARMACY
(1900 CAMERON STREET)
CAMERON VILLAGESHOPPING CENTER(422 WOODBURN ROAD)
CAMERON VILLAGESHOPPING CENTER(422 WOODBURN ROAD)
THE VILLAGE GARDENS CONDOMINIUMS
(1901, 1921, AND 1941 CLARK AVENUE)
THE VILLAGE GARDENS CONDOMINIUMS(1901, 1921, AND 1941 CLARK AVENUE)
JORDAN PRICE WALL GRAYJONES AND CARLTON, PLLC(1951 CLARK AVENUE)
JORDAN PRICE WALL GRAYJONES AND CARLTON, PLLC(1951 CLARK AVENUE)
CAMERON STREETCAMERON STREET
EDNA METZ WELLS PARK
(1600 PARK DRIVE)
EDNA METZ WELLS PARK(1600 PARK DRIVE)BEL
LWOOD
DR
IVEBELLWOOD
DR
IVE SMAL
LWOOD
DR
IVESMAL
LWOOD
DR
IVE
SUT
T
O
N
D
RI
V
E
SUT
T
O
N
D
RI
V
E
WOODBURN ROADWOODBURN ROADCLARK AVENUECLARK AVENUE
NOTES:
1.AERIAL IMAGERY OBTAINED FROM ESRI SERVICES.
UNDEVELOPED LAND
(1800 BELLWOOD DRIVE)
UNDEVELOPED LAND(1800 BELLWOOD DRIVE)
UST INCIDENT#3409
S:\AAA-Master Projects\Camden - CAM\CAM-011 Cameron Village Condominiums\Phase I ESA\Figures\Site Map.dwg, FIG 2, 11/2/2020 10:55:54 AM, SVincent
REVISION NO. 0
JOB NO. CAM-011
DATE: 11-2-20
FIGURE NO. 3
RECEPTOR SURVEY MAP
LEGEND
SITE PROPERTY BOUNDARY
PARCEL BOUNDARY
SURFACE WATER FEATURE
3921 Sunset Ridge Road, Suite 301
Raleigh, North Carolina 27607
919-847-4241(p) 919-847-4261(f)
License # C-1269 / #C-245 Geology
CAMERON STREET
PEACE STREET
CLARK AVENUEOBERLIN ROADSMALLWOOD DRIVEDANIELS STREETSU
T
TON
DR
I
VE
ST. MARYS STREETWOOD
B
U
R
N
R
O
A
D
PARK DRIVE
WOODBURN ROADBE
N
E
H
A
N

S
T
R
E
E
T
HIL
L
S
B
O
R
O
U
G
H

S
T
R
E
E
T
COLLEGE PLACE
W PA
R
K
D
RI
V
E
E PA
R
K
D
RI
V
E
CALVI
N
R
O
A
DCHAMBERLAIN STREETBEDFORD AVENUE
1,500

F
T
NOTES:
1.AERIAL IMAGERY OBTAINED FROM NC ONEMAP.
CAMERON VILLAGE CONDOMINIUMS1801 CAMERON STREET
RALEIGH, NORTH CAROLINA
S:\AAA-Master Projects\Camden - CAM\CAM-011 Cameron Village Condominiums\Brownfields Assistance\Brownfields Assessment\Figures\Survey Map.dwg, FIG 3, 11/1/2020 6:38:33 PM, SVincent
SB-1
SG-3
SG-2
SG-1S/D
SG-4
SG-5
SB-2
SG-6
REVISION NO. 0
JOB NO. CAM-011
DATE: 11-2-20
FIGURE NO. 4
CAMERON VILLAGE CONDOMINIUMS1801 CAMERON STREET
RALEIGH, NORTH CAROLINA
SAMPLE LOCATION MAP
LEGEND
SITE PROPERTY BOUNDARY
PARCEL BOUNDARY
SURFACE WATER FEATURE
POLE-MOUNTED TRANSFORMER
PAD-MOUNTED TRANSFORMER
BOILER ROOM
PROPOSED BUILDING FOOTPRINT
BACKGROUND SOIL SAMPLELOCATION
EXTERIOR SOIL VAPOR SAMPLELOCATION
3921 Sunset Ridge Road, Suite 301
Raleigh, North Carolina 27607
919-847-4241(p) 919-847-4261(f)
License # C-1269 / #C-245 Geology
CHIK-FIL-A
(2000 CAMERON STREET)
CHIK-FIL-A(2000 CAMERON STREET)
WALLGREENS PHARMACY(1900 CAMERON STREET)
WALLGREENS PHARMACY
(1900 CAMERON STREET)
CAMERON VILLAGESHOPPING CENTER(422 WOODBURN ROAD)
CAMERON VILLAGESHOPPING CENTER(422 WOODBURN ROAD)
THE VILLAGE GARDENS CONDOMINIUMS
(1901, 1921, AND 1941 CLARK AVENUE)
THE VILLAGE GARDENS CONDOMINIUMS(1901, 1921, AND 1941 CLARK AVENUE)
JORDAN PRICE WALL GRAYJONES AND CARLTON, PLLC(1951 CLARK AVENUE)
JORDAN PRICE WALL GRAYJONES AND CARLTON, PLLC(1951 CLARK AVENUE)
CAMERON STREETCAMERON STREET
EDNA METZ WELLS PARK
(1600 PARK DRIVE)
EDNA METZ WELLS PARK(1600 PARK DRIVE)BEL
LWOOD
DR
IVEBELLWOOD
DR
IVE SMAL
LWOOD
DR
IVESMAL
LWOOD
DR
IVE
SUT
T
O
N
D
RI
V
E
SUT
T
O
N
D
RI
V
E
WOODBURN ROADWOODBURN ROADCLARK AVENUECLARK AVENUE
NOTES:
1.AERIAL IMAGERY OBTAINED FROM ESRI SERVICES.
UNDEVELOPED LAND
(1800 BELLWOOD DRIVE)
UNDEVELOPED LAND(1800 BELLWOOD DRIVE)
UST INCIDENT#3409
PARKING DECKPARKING DECK
COURTYARD /
POOL
COURTYARD /POOL
S:\AAA-Master Projects\Camden - CAM\CAM-011 Cameron Village Condominiums\Phase I ESA\Figures\Site Map.dwg, FIG 4, 11/1/2020 6:40:05 PM, SVincent

Appendix A Brownfields Receptor Survey Form
North Carolina Department of Environmental Quality
Division of Waste Management
Brownfields Program
Site:Cameron Village Condominiums
Address:1801 Cameron Street
City:Raleigh, NC
County:Wake County
Brownfields Project Number:24017-20-092
Date 9/8/2020
Property and Building Characteristics
a. Provide occupancy and use information.
Concrete, brick, panel siding, and stone. Twelve two-story buidlings.
c. Describe the foundation construction. Include details on type, floor construction, and depth below grade.
Concrete or brick. All buildings had a crawlspace below grade at approximately 0 to 5 feet.
Four buildings had boiler rooms. The boiler rooms were in a partial basement below grade
at approximately 10-15 feet.
All HVAC systems were outside of each multi-tenant residential building.
e. Are any subslab ventilation systems or moisture barriers in place? If so, please provide details.
N/A
Current occupancy is 12 multi-tenant residetial buildings.
If an existing building is on-site, please respond to the following. Information can be provided on additional sheets as
needed. If numerous buildings are on-site, consult with your PM as only information on specific buildings may be
needed.
b. Describe the construction of the builidng including materials (e.g. wood frame, block), type and size of openings
(e.g. windows, bay doors), and height (number of stories).
% of property that is covered by buildings
BROWNFIELDS PROPERTY RECEPTOR SURVEY
This form was created to clarify and simplify preparing a receptor survey for a brownfield site. Please provide the
information requested below. Distances are measured from the site property boundary unless otherwise indicated by
the DEQ Brownfield’s Project Manager (PM).
Current Usage Proposed UsageSurface Conditions
% of property that is grassed areas
% of property that is agricultural crops
% of property that is paved
35
NASize of Property (acres)
% of property that is wooded/brush
4.91
10
50
d. Describe the HVAC system in the building. Include available details on type, equipment location, source of air
return, and design considerations (e.g. positive pressure?).
0
5
Rev. 09/2015 Page 1 of 4
North Carolina Department of Environmental Quality
Division of Waste Management
Brownfields Program
Surrounding Property Land Use
North
South
East
West
Y 250 East
Y <100
North
East
South
Y
<50
<250
<250
<250
<1,000
<1,000
West
South
South
South
Southeast
Southeast
Utilities
Is there a septic system on-site? (Y or N) ___N______
Please provide the utility providers for the subject property
a. Natural Gas ___________________________
b. Sewer ___City of Raleigh
c. Electricity ___________________________
d. Other __________________________
For surrounding properties, please complete the following table with available information.
Y
Y
Unknown
Y
Y
Same
Same
Same
Is there a basement within 1,000 ft of the Property
Broughton High
School
723 St. Marys Street
Is there a residence within 1,000 ft of the Property?
Utility/Potential Receptor
Is a storm water pipe within 100 ft of the Property boundary?
Is a sanitary sewer within 100 ft of the Property boundary?
Several
1930 Clark Avenue
(Parking Deck)
1616 Park Drive
(residential)
1622 Park Drive
(residential)
1624 Park Drive
(residential)
1913 West Johnson
Street (residential)
1911 West Johnson
Street (residential)
Is a water line main within 100 ft of Property boundary?
Is a natural gas line main within 100 ft of the Property boundary?
Is a septic system leach field within 500 ft of the Property boundary?
Direction
Commercial and Multi-tenant Residences
Undeveloped land with Multi-tenant Residences beyond
Multi-tenant Commercial
For the subject property, please provide a map of known buried utilites. If available, include depth to top,
construction material, and diameter of the utilities. In addition, please provide the following information on utilty
providers. If additional assessment is required, the public utility locators should be contacted. This information can
then be added to a site map.
Y/N *
Is a school or daycare center within 1,000 ft of the Property?
Specific Land Uses of Interest Y/N *
* If numerous facilities of interest are present, their locations can be placed on a map in lieu of providing specific
addresses.
Distance
(ft)
DirectionDistance
(ft)Address
Same
Please provide information on the following land uses in the vicinity of the subject site, including a map of the
surrounding areas. If specific receptors are present, please provide addresses of the facilities.
Commercial with Multi-tenant Residences beyond
Zoning/Land Use Proposed Usage Current Use/Occupant
Rev. 09/2015 Page 2 of 4
North Carolina Department of Environmental Quality
Division of Waste Management
Brownfields Program
Y
YIs a buried electrical cable main within 100 ft of Property boundary?
* If yes, please provide a map or detailed information (distance, direction, depth) of the utility in correlation with the
subject property.
Is a buried telephone/ cable main within 100 ft of the Property boundary?
Rev. 09/2015 Page 3 of 4
North Carolina Department of Environmental Quality
Division of Waste Management
Brownfields Program
Water Supply
What is the potable water supply for the property? Public __X____ Private ______
N
N
N
Surface Water & Wetlands
NA
Unnamed Tributary 720 feet south
No. Based on U.S. Fish and Wildlife National Wetlands Inventory
Review (9/8/20).
b. List the uses of the water body.
c. What is the source of the water for the
water body?
d. What is the nature of the bottom of the
water body (e.g., rocky or concrete bottom,
drainage ways or impoundments)
If no on-site surface water features, what is the
nearest surface water body?
Are there any wetlands present on the property?
If no wetlands on-site, are wetlands suspected
on adjoining properties?
NA
NA
Is a public water supply well within 1 mile of the Property boundary?
Is a private water supply well within 1,500 ft of the Property
bd?Is an irrigation well within 1,500 ft of the Property boundary?
Response/Comments
The purpose of this section is to provide information on the presence of surface waters and/or wetlands on, or in the
vicinity of the Property.
If Private, please provide details of the water supply source (i.e. well location, well construction, etc). If public, please
include the water providers name.
The purpose of this section is to provide information on the water supply for the site and surrounding areas.
a. Is the water body naturally developed or
man-made?NA
Y/NWater Supply Wells
Please provide the following information regarding water supply wells in the vicinity of the Property. At a
minimum, a windshield survey within 1,500 ft of the property boundaries should be completed to determine if water
supply or irrigation wells may be present. Information from applicable databases can and should be utilized;
however, should not be utilized in lieu of the windshield survey. If multiple wells are present within the requested
radius, please provide a map of the well locations. If needed, please attach a separate table to list all wells. Please
note, the PM may opt for a more extensive water supply well survey if needed.
Are there surface water features on the
property? (If yes, please complete a. to d.)
Provide Information regarding Surface Water
and Wetlands
Distance
(ft)Direction Address
No
Rev. 09/2015 Page 4 of 4
Disclaimer
iMaps makes every effort to produce and publish
the most current and accurate information possible.
However, the maps are produced for information purposes,
and are NOT surveys. No warranties, expressed or implied
,are provided for the data therein, its use,or its interpretation.
0 850 1,700425 ft
1 inch = 800 feet±APPROXIMATE 1,500-FOOT RADIUS FROM SITE
USGS STREAM (ACCORDING TO WAKE COUNTY IMAPS)
GPS VERIFIED WELL LOCATION (ACCORDING TO WAKE COUNTY IMAPS)

Appendix B Boring Logs
NOTES: Hole precleared to 2' using hand auger. Samples were analyzed for RCRA Metals and Hexavalent Chromium.
generated using GroundLogs.online
Client:
Project:
Address:
Camden
CAM-011
1801 Cameron Street, Raleigh, NC
BORING LOG
Boring No.
Page:
SB-1
1 of 1
Drilling Start Date:
Drilling End Date:
Drilling Company:
Drilling Method:
Drilling Equipment:
Driller:
Logged By:Jayna Sananikone
Boring Depth (ft):
Boring Diameter (in):
Sampling Method(s):
DTW During Drilling (ft):
DTW After Drilling (ft):
Ground Surface Elev. (ft):
Location (X,Y):
2.0
DEPTH (ft)LITHOLOGYWATER LEVELBORINGCOMPLETIONCOLLECT
Sample TypeTimeBlow CountsRecovery (ft)SOIL/ROCK VISUAL DESCRIPTION
MEASURE
PID (ppm)Lab SampleDEPTH (ft)0
1
2
3
4
5
(0') Poorly graded SAND (SP); loose, dry, brown
(0.5') Poorly graded SAND (SP); loose, dry, orange
(2') Boring terminated
1.3
1.4
0
1
2
3
4
5
Grab
Hand Auger
Hand Auger
9/9/20
9/9/20
H&H
H&H
SB-1
NOTES: Hole precleared on 9/9/2020 using hand auger. Samples were analyzed for RCRA Metals and Hexavalent Chromium.
generated using GroundLogs.online
Client:
Project:
Address:
Camden
CAM-011
1801 Cameron Street, Raleigh, NC
BORING LOG
Boring No.
Page:
SB-2
1 of 1
Drilling Start Date:
Drilling End Date:
Drilling Company:
Drilling Method:
Drilling Equipment:
Driller:
Logged By:Jayna Sananikone
Boring Depth (ft):
Boring Diameter (in):
Sampling Method(s):
DTW During Drilling (ft):
DTW After Drilling (ft):
Ground Surface Elev. (ft):
Location (X,Y):
2.0
DEPTH (ft)LITHOLOGYWATER LEVELBORINGCOMPLETIONCOLLECT
Sample TypeTimeBlow CountsRecovery (ft)SOIL/ROCK VISUAL DESCRIPTION
MEASURE
PID (ppm)Lab SampleDEPTH (ft)0
1
2
3
4
5
(0') Poorly graded SAND (SP); loose, dry, brown
(1') Poorly graded SAND (SP); loose, dry, reddish, orange
(2') Boring terminated
1.2
1.2 SB-1SB-2
0
1
2
3
4
5
9/9/20
9/9/20
H&H
Hand Auger
Hand Auger
H&H
Grab
NOTES: Hole precleared on 9/9/2020 using hand auger.
generated using GroundLogs.online
Client:
Project:
Address:
Camden
CAM-011
1801 Cameron Street, Raleigh, NC
BORING LOG
Boring No.
Page:
SG-1S/1D
1 of 1
Drilling Start Date:
Drilling End Date:
Drilling Company:
Drilling Method:
Drilling Equipment:
Driller:
Logged By:
Direct Push
Jayna Sananikone
Boring Depth (ft):
Boring Diameter (in):
Sampling Method(s):
DTW During Drilling (ft):
DTW After Drilling (ft):
Ground Surface Elev. (ft):
Location (X,Y):
14.0
DEPTH (ft)LITHOLOGYWATER LEVELBORINGCOMPLETIONCOLLECT
Sample TypeTimeBlow CountsRecovery (ft)SOIL/ROCK VISUAL DESCRIPTION
MEASURE
PID (ppm)Lab SampleDEPTH (ft)0
5
10
15
(0') Lean CLAY (CL); medium plasticity, soft, dry, brown
(1') Lean CLAY (CL); medium plasticity, hard, dry, orange
(4') As Above
(6') Sandy SILT (ML); soft, dry, yellowish
(8') As Above: reddish
(10') Poorly graded SAND with silt (SP-SM); loose, dry, white
(14') Boring terminated
0.2
0.2
0.3
0.4
0.2
0.6
0.4
0.5
0.5
0.5
0.4
0.7
0.4
0.3
0
5
10
15
9/9/20
9/9/20
GeoProbe
Regional Probing
NOTES: Hole precleared on 09/09/2020 using hand auger.
generated using GroundLogs.online
Client:
Project:
Address:
Camden
CAM-011
1801 Cameron Street, Raleigh, NC
BORING LOG
Boring No.
Page:
SG-2
1 of 1
Drilling Start Date:
Drilling End Date:
Drilling Company:
Drilling Method:
Drilling Equipment:
Driller:
Logged By:
Direct Push
Jayna Sananikone
Boring Depth (ft):
Boring Diameter (in):
Sampling Method(s):
DTW During Drilling (ft):
DTW After Drilling (ft):
Ground Surface Elev. (ft):
Location (X,Y):
8.0
DEPTH (ft)LITHOLOGYWATER LEVELBORINGCOMPLETIONCOLLECT
Sample TypeTimeBlow CountsRecovery (ft)SOIL/ROCK VISUAL DESCRIPTION
MEASURE
PID (ppm)Lab SampleDEPTH (ft)0
5
10
(0') Lean CLAY (CL); medium plasticity, soft, dry, reddish-brown
(2') Poorly graded SAND with silt (SP-SM); loose, dry, orange
(3') Lean CLAY (CL); medium plasticity, hard, dry, reddish
(4') As Above: mica
(8') Boring terminated
4.9
5.0
5.1
5.1
4.5
5.6
4.8
4.4
0
5
10
9/9/20
9/9/20
GeoProbe
Regional Probing
NOTES: Hole precleared on 09/09/2020 using hand auger.
generated using GroundLogs.online
Client:
Project:
Address:
Camden
CAM-011
1801 Cameron Street, Raleigh, NC
BORING LOG
Boring No.
Page:
SG-3
1 of 1
Drilling Start Date:
Drilling End Date:
Drilling Company:
Drilling Method:
Drilling Equipment:
Driller:
Logged By:
Direct Push
Jayna Sananikone
Boring Depth (ft):
Boring Diameter (in):
Sampling Method(s):
DTW During Drilling (ft):
DTW After Drilling (ft):
Ground Surface Elev. (ft):
Location (X,Y):
8.0
DEPTH (ft)LITHOLOGYWATER LEVELBORINGCOMPLETIONCOLLECT
Sample TypeTimeBlow CountsRecovery (ft)SOIL/ROCK VISUAL DESCRIPTION
MEASURE
PID (ppm)Lab SampleDEPTH (ft)0
5
10
(0') Sandy SILT (ML); soft, dry, reddish, orange
(3') Lean CLAY (CL); medium plasticity, soft, dry, reddish, mica
(3.5') SILT with sand (ML); soft, dry, orange, mica
(5') As Above
(7.5') SILT with sand (ML); soft, dry, white, black mottling
(8') Boring terminated
10.7
15.6
5.8
8.2
7.6
6.2
5.2
8.4
0
5
10
9/9/20
9/9/20
GeoProbe
Regional Probing
NOTES: Hole precleared on 9/9/2020 using hand auger.
generated using GroundLogs.online
Client:
Project:
Address:
Camden
CAM-011
1801 Cameron Street, Raleigh, NC
BORING LOG
Boring No.
Page:
SG-4
1 of 1
Drilling Start Date:
Drilling End Date:
Drilling Company:
Drilling Method:
Drilling Equipment:
Driller:
Logged By:
Direct Push
Jayna Sananikone
Boring Depth (ft):
Boring Diameter (in):
Sampling Method(s):
DTW During Drilling (ft):
DTW After Drilling (ft):
Ground Surface Elev. (ft):
Location (X,Y):
8.0
DEPTH (ft)LITHOLOGYWATER LEVELBORINGCOMPLETIONCOLLECT
Sample TypeTimeBlow CountsRecovery (ft)SOIL/ROCK VISUAL DESCRIPTION
MEASURE
PID (ppm)Lab SampleDEPTH (ft)0
5
10
(0') Poorly graded SAND with silt (SP-SM); loose, dry, brown
(0.5') Lean CLAY (CL); medium plasticity, hard, dry, reddish, orange
(2') Lean CLAY (CL); medium plasticity, hard, dry, yellowish, orange
(4') As Above: soft
(6') Lean CLAY (CL); medium plasticity, soft, moist, gray, orange
(8') Boring terminated
3.9
4.0
4.0
4.5
5.1
4.4
3.8
3.2
0
5
10
9/9/20
9/9/20
GeoProbe
Regional Probing
NOTES: Hole precleared on 09/09/2020 using hand auger.
generated using GroundLogs.online
Client:
Project:
Address:
Camden
CAM-011
1801 Cameron Street, Raleigh, NC
BORING LOG
Boring No.
Page:
SG-5
1 of 1
Drilling Start Date:
Drilling End Date:
Drilling Company:
Drilling Method:
Drilling Equipment:
Driller:
Logged By:
Direct Push
Jayna Sananikone
Boring Depth (ft):
Boring Diameter (in):
Sampling Method(s):
DTW During Drilling (ft):
DTW After Drilling (ft):
Ground Surface Elev. (ft):
Location (X,Y):
8.0
DEPTH (ft)LITHOLOGYWATER LEVELBORINGCOMPLETIONCOLLECT
Sample TypeTimeBlow CountsRecovery (ft)SOIL/ROCK VISUAL DESCRIPTION
MEASURE
PID (ppm)Lab SampleDEPTH (ft)0
5
10
(0') Poorly graded SAND with silt (SP-SM); loose, dry, brown
(0.5') Lean CLAY (CL); medium plasticity, hard, dry, reddish, orange
(2') Lean CLAY (CL); medium plasticity, hard, dry, yellowish, orange
(4') As Above: soft
(6') Lean CLAY (CL); medium plasticity, soft, moist, gray, orange
(8') Boring terminated
3.9
4.0
4.0
4.5
5.1
4.4
3.8
3.2
0
5
10
9/9/20
9/9/20
GeoProbe
Regional Probing
NOTES: Hole precleared on 09/09/2020 using hand auger.
generated using GroundLogs.online
Client:
Project:
Address:
Camden
CAM-011
1801 Cameron Street, Raleigh, NC
BORING LOG
Boring No.
Page:
SG-6
1 of 1
Drilling Start Date:
Drilling End Date:
Drilling Company:
Drilling Method:
Drilling Equipment:
Driller:
Logged By:
Direct Push
Jayna Sananikone
Boring Depth (ft):
Boring Diameter (in):
Sampling Method(s):
DTW During Drilling (ft):
DTW After Drilling (ft):
Ground Surface Elev. (ft):
Location (X,Y):
8.0
DEPTH (ft)LITHOLOGYWATER LEVELBORINGCOMPLETIONCOLLECT
Sample TypeTimeBlow CountsRecovery (ft)SOIL/ROCK VISUAL DESCRIPTION
MEASURE
PID (ppm)Lab SampleDEPTH (ft)0
5
10
(0') SILT (ML); soft, dry, reddish-brown
(1') SILT with sand (ML); soft, dry, reddish, orange
(4') SILT with sand (ML); soft, dry, gray
(5') Poorly graded SAND with silt (SP-SM); loose, dry, brown, gray
(6') Poorly graded SAND with silt (SP-SM); loose, dry, white, gray
(7.5') SILT with sand (ML); hard, dry, bluish-gray
(8') Boring terminated
2.3
2.3
3.1
2.4
3.2
2.7
3.0
2.2
0
5
10
9/9/20
9/9/20
GeoProbe
Regional Probing

Appendix C Laboratory Analytical Report
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
September 18, 2020
Justin Ballard
Hart & Hickman - Raleigh, NC
3921 Sunset Ridge Rd., Suite 301
Raleigh, NC 27607
Project Location: Raleigh, NC
Client Job Number:
Project Number: CAM-011
Laboratory Work Order Number: 20I0531
Enclosed are results of analyses for samples received by the laboratory on September 9, 2020. If you have any questions
concerning this report, please feel free to contact me.
Sincerely,
Kerry K. McGee
Project Manager
Page 1 of 28
Table of Contents
Table of Contents
Sample Summary 3
Case Narrative 4
Sample Results 5
20I0531-01 5
20I0531-02 8
Sample Preparation Information 11
QC Data 12
Metals Analyses (Total) 12
B266230 12
B266283 12
Flag/Qualifier Summary 13
Certifications 14
Chain of Custody/Sample Receipt 15
Page 2 of 28
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL SUMMARY
9/18/2020
Hart & Hickman - Raleigh, NC
3921 Sunset Ridge Rd., Suite 301
Raleigh, NC 27607
ATTN: Justin Ballard
CAM-011
20I0531
The results of analyses performed on the following samples submitted to the CON-TEST Analytical Laboratory are found in this report.
PROJECT LOCATION:
PURCHASE ORDER NUMBER:
PROJECT NUMBER:
REPORT DATE:
WORK ORDER NUMBER:
FIELD SAMPLE #LAB ID:MATRIX TESTSAMPLE DESCRIPTION SUB LAB
Raleigh, NC
CAM-011
SB-1 (1-2)20I0531-01 Soil Method 7199 CT PH-0197/NY11742
SM 2540G
SW-846 CT PH-0197/NY11742
SW-846 6020B
SW-846 7471B
SB-2 (1-2)20I0531-02 Soil Method 7199 CT PH-0197/NY11742
SM 2540G
SW-846 CT PH-0197/NY11742
SW-846 6020B
SW-846 7471B
[TOC_1]Sample Summary[TOC]
Page 3 of 28
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
CASE NARRATIVE SUMMARY
All reported results are within defined laboratory quality control objectives unless listed below or otherwise qualified in this report.
[TOC_1]Case Narrative[TOC]
The results of analyses reported only relate to samples submitted to the Con-Test Analytical Laboratory for testing.
I certify that the analyses listed above, unless specifically listed as subcontracted, if any, were performed under my direction according to the approved methodologies listed
in this document, and that based upon my inquiry of those individuals immediately responsible for obtaining the information, the material contained in this report is, to the
best of my knowledge and belief, accurate and complete.
Lisa A. Worthington
Technical Representative
Page 4 of 28
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 9/9/2020
Work Order: 20I0531Sample Description:Project Location: Raleigh, NC
Sample ID: 20I0531-01
Field Sample #: SB-1 (1-2)
Sample Matrix: Soil
Sampled: 9/9/2020 12:45
[TOC_2]20I0531-01[TOC]
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Metals Analyses (Total)
0.49 0.19 9/14/20 11:29 QNWmg/Kg dry0.13 9/10/20SW-846 6020B5Arsenic
13 4.7 9/14/20 11:29 QNWmg/Kg dry0.61 9/10/20SW-846 6020B5Chromium
17 1.9 9/14/20 11:29 QNWmg/Kg dry0.15 9/10/20SW-846 6020B5Lead
ND 0.028 9/14/20 11:48 CJVmg/Kg dry0.0084 9/11/20SW-846 7471B1Mercury
ND 1.5 9/14/20 11:29 QNWmg/Kg dry0.38 9/10/20SW-846 6020B5Selenium
ND 0.095 9/14/20 11:29 QNWmg/Kg dry0.034 9/10/20SW-846 6020B5Silver
22 9.5 9/14/20 11:29 QNWmg/Kg dry0.61 9/10/20SW-846 6020B5Barium
ND 0.38 9/14/20 11:29 QNWmg/Kg dry0.053 9/10/20SW-846 6020B5Cadmium
[TOC_1]Sample Results[TOC]
Page 5 of 28
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 9/9/2020
Work Order: 20I0531Sample Description:Project Location: Raleigh, NC
Sample ID: 20I0531-01
Field Sample #: SB-1 (1-2)
Sample Matrix: Soil
Sampled: 9/9/2020 12:45
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Conventional Chemistry Parameters by EPA/APHA/SW-846 Methods (Total)
88.5 9/14/20 7:34 AVF% Wt 9/12/20SM 2540G1% Solids
Page 6 of 28
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 9/9/2020
Work Order: 20I0531Sample Description:Project Location: Raleigh, NC
Sample ID: 20I0531-01
Field Sample #: SB-1 (1-2)
Sample Matrix: Soil
Sampled: 9/9/2020 12:45
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Conventional Chemistry Parameters by EPA/APHA/SW-846 Methods (Total)
Attached Attached 9/17/20 14:57 PALmg/KgAttached Method 71991Hexavalent Chromium
Page 7 of 28
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 9/9/2020
Work Order: 20I0531Sample Description:Project Location: Raleigh, NC
Sample ID: 20I0531-02
Field Sample #: SB-2 (1-2)
Sample Matrix: Soil
Sampled: 9/9/2020 13:25
[TOC_2]20I0531-02[TOC]
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Metals Analyses (Total)
1.1 0.20 9/14/20 11:32 QNWmg/Kg dry0.14 9/10/20SW-846 6020B5Arsenic
29 5.0 9/14/20 11:32 QNWmg/Kg dry0.65 9/10/20SW-846 6020B5Chromium
14 2.0 9/14/20 11:32 QNWmg/Kg dry0.16 9/10/20SW-846 6020B5Lead
0.024 0.031 9/14/20 11:50 CJVmg/Kg dry0.0092 9/11/20SW-846 7471B1JMercury
ND 1.6 9/14/20 11:32 QNWmg/Kg dry0.41 9/10/20SW-846 6020B5Selenium
0.045 0.10 9/14/20 11:32 QNWmg/Kg dry0.036 9/10/20SW-846 6020B5JSilver
38 10 9/14/20 11:32 QNWmg/Kg dry0.65 9/10/20SW-846 6020B5Barium
ND 0.40 9/14/20 11:32 QNWmg/Kg dry0.057 9/10/20SW-846 6020B5Cadmium
Page 8 of 28
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 9/9/2020
Work Order: 20I0531Sample Description:Project Location: Raleigh, NC
Sample ID: 20I0531-02
Field Sample #: SB-2 (1-2)
Sample Matrix: Soil
Sampled: 9/9/2020 13:25
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Conventional Chemistry Parameters by EPA/APHA/SW-846 Methods (Total)
82.4 9/14/20 7:34 AVF% Wt 9/12/20SM 2540G1% Solids
Page 9 of 28
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 9/9/2020
Work Order: 20I0531Sample Description:Project Location: Raleigh, NC
Sample ID: 20I0531-02
Field Sample #: SB-2 (1-2)
Sample Matrix: Soil
Sampled: 9/9/2020 13:25
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Conventional Chemistry Parameters by EPA/APHA/SW-846 Methods (Total)
Attached Attached 9/17/20 15:05 PALmg/KgAttached Method 71991Hexavalent Chromium
Page 10 of 28
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Sample Extraction Data
Prep Method: % Solids Analytical Method: SM 2540G
Lab Number [Field ID]Batch Date
B266342 09/12/2020I0531-01 [SB-1 (1-2)]
B266342 09/12/2020I0531-02 [SB-2 (1-2)]
Prep Method: SW-846 3050B Analytical Method: SW-846 6020B
Lab Number [Field ID]Batch DateInitial [g]Final [mL]
B266230 09/10/201.49 50.020I0531-01 [SB-1 (1-2)]
B266230 09/10/201.50 50.020I0531-02 [SB-2 (1-2)]
Prep Method: SW-846 7471 Analytical Method: SW-846 7471B
Lab Number [Field ID]Batch DateInitial [g]Final [mL]
B266283 09/11/200.605 50.020I0531-01 [SB-1 (1-2)]
B266283 09/11/200.592 50.020I0531-02 [SB-2 (1-2)]
[TOC_1]Sample Preparation Information[TOC]
Page 11 of 28
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Result Limit
Reporting
Units Level
Spike
Result
Source
%REC
%REC
Limits RPD
RPD
Limit Notes Analyte
Metals Analyses (Total) - Quality Control
QUALITY CONTROL
[TOC_2]Metals Analyses (Total)[TOC]
Batch B266230 - SW-846 3050B
[TOC_3]B266230[TOC]
Blank (B266230-BLK1) Prepared: 09/10/20 Analyzed: 09/14/20
Arsenic mg/Kg wet0.17ND
Chromium mg/Kg wet4.2ND
Lead mg/Kg wet1.7ND
Selenium mg/Kg wet1.3ND
Silver mg/Kg wet0.083ND
Barium mg/Kg wet8.3ND
Cadmium mg/Kg wet0.33ND
LCS (B266230-BS1) Prepared: 09/10/20 Analyzed: 09/14/20
Arsenic mg/Kg wet2.0 97.6 82.8-116.897.094.6
Chromium mg/Kg wet50 147 81.6-117.7109160
Lead mg/Kg wet20 105 82.6-117.199.3104
Selenium mg/Kg wet16 93.1 78.9-121.498.791.9
Silver mg/Kg wet0.99 32.0 79.7-12098.631.6
Barium mg/Kg wet99 320 82.5-117.598.9316
Cadmium mg/Kg wet4.0 114 82.8-117.5104119
LCS Dup (B266230-BSD1) Prepared: 09/10/20 Analyzed: 09/14/20
Arsenic mg/Kg wet2.0 97.6 3082.8-116.898.7 1.8196.4
Chromium mg/Kg wet50 147 3081.6-117.7108 0.140159
Lead mg/Kg wet20 105 3082.6-117.1105 5.46110
Selenium mg/Kg wet16 93.1 3078.9-121.4101 2.5094.2
Silver mg/Kg wet1.0 32.0 3079.7-120104 4.8233.1
Barium mg/Kg wet100 320 2082.5-117.5101 2.56325
Cadmium mg/Kg wet4.0 114 2082.8-117.5105 0.812120
Batch B266283 - SW-846 7471
[TOC_3]B266283[TOC]
Blank (B266283-BLK1) Prepared: 09/11/20 Analyzed: 09/14/20
Mercury mg/Kg wet0.025ND
LCS (B266283-BS1) Prepared: 09/11/20 Analyzed: 09/14/20
Mercury mg/Kg wet0.38 5.99 74.1-1261076.43
LCS Dup (B266283-BSD1) Prepared: 09/11/20 Analyzed: 09/14/20
Mercury mg/Kg wet0.37 5.99 2074.1-126100 6.876.00
[TOC_1]QC Data[TOC]
Page 12 of 28
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
FLAG/QUALIFIER SUMMARY
*QC result is outside of established limits.
Wide recovery limits established for difficult compound.
Wide RPD limits established for difficult compound.
#Data exceeded client recommended or regulatory level
Percent recoveries and relative percent differences (RPDs) are determined by the software using values in the
calculation which have not been rounded.
No results have been blank subtracted unless specified in the case narrative section.
RL Reporting Limit is at the level of quantitation (LOQ)
DL Detection Limit is the lower limit of detection determined by the MDL study
MCL Maximum Contaminant Level
ND Not Detected
Detected but below the Reporting Limit (lowest calibration standard); therefore, result is an estimated
concentration (CLP J-Flag).
J
[TOC_1]Flag/Qualifier Summary[TOC]
Page 13 of 28
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
CertificationsAnalyte
CERTIFICATIONS
Certified Analyses included in this Report
SW-846 in Soil
NY,CT,NH,NC,ME,VAHexavalent Chromium
SW-846 6020B in Soil
NY,VA,NH,NC,MEArsenic
NY,NC,MEChromium
NY,NC,MELead
NY,VA,NH,NC,MESelenium
NY,NC,MESilver
NY,NCBarium
NY,NC,MECadmium
SW-846 7471B in Soil
CT,NH,NY,NC,ME,VAMercury
[TOC_1]Certifications[TOC]
The CON-TEST Environmental Laboratory operates under the following certifications and accreditations:
Code Description Number Expires
100033AIHA-LAP, LLC - ISO17025:2017AIHA 03/1/2022
M-MA100Massachusetts DEPMA 06/30/2021
PH-0567Connecticut Department of Publilc HealthCT 09/30/2021
10899 NELAPNew York State Department of HealthNY 04/1/2021
2516 NELAPNew Hampshire Environmental LabNH-S 02/5/2021
LAO00112Rhode Island Department of HealthRI 12/30/2020
652North Carolina Div. of Water QualityNC 12/31/2020
MA007 NELAPNew Jersey DEPNJ 06/30/2021
E871027 NELAPFlorida Department of HealthFL 06/30/2021
LL015036Vermont Department of Health Lead LaboratoryVT 07/30/2021
2011028State of MaineME 06/9/2021
460217Commonwealth of VirginiaVA 12/14/2020
2557 NELAPNew Hampshire Environmental LabNH-P 09/6/2021
VT-255716Vermont Department of Health Drinking WaterVT-DW 06/12/2021
25703North Carolina Department of HealthNC-DW 07/31/2021
68-05812Commonwealth of Pennsylvania DEPPA 06/30/2021
9100Dept. of Env, Great Lakes, and EnergyMI 10/1/2020
Page 14 of 28
Table of Contents
Page 15 of 28
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Page 27 of 28
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Page 28 of 28Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
September 17, 2020
Justin Ballard
Hart & Hickman - Raleigh, NC
3921 Sunset Ridge Rd., Suite 301
Raleigh, NC 27607
Project Location: Raleigh, NC
Client Job Number:
Project Number: CAM-011
Laboratory Work Order Number: 20I0754
Enclosed are results of analyses for samples received by the laboratory on September 10, 2020. If you have any questions
concerning this report, please feel free to contact me.
Sincerely,
Kerry K. McGee
Project Manager
QA Officer
Katherine Allen
Laboratory Manager
Daren Damboragian
Page 1 of 31
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL SUMMARY
9/17/2020Hart & Hickman - Raleigh, NC
3921 Sunset Ridge Rd., Suite 301
Raleigh, NC 27607
ATTN: Justin Ballard
CAM-011
20I0754
The results of analyses performed on the following samples submitted to the CON-TEST Analytical Laboratory are found in this report.
PROJECT LOCATION:
PURCHASE ORDER NUMBER:
PROJECT NUMBER:
REPORT DATE:
WORK ORDER NUMBER:
FIELD SAMPLE #LAB ID:MATRIX TESTSAMPLE DESCRIPTION SUB LAB
Raleigh, NC
CAM-011
SG-1D 20I0754-01 Soil Gas EPA TO-15
SG-2 20I0754-02 Soil Gas EPA TO-15
SG-3 20I0754-03 Soil Gas EPA TO-15
SG-4 20I0754-04 Soil Gas EPA TO-15
SG-5 20I0754-05 Soil Gas EPA TO-15
SG-6 20I0754-06 Soil Gas EPA TO-15
DUP-1 20I0754-07 Soil Gas EPA TO-15
Page 2 of 31
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
CASE NARRATIVE SUMMARY
All reported results are within defined laboratory quality control objectives unless listed below or otherwise qualified in this report.
The results of analyses reported only relate to samples submitted to the Con-Test Analytical Laboratory for testing.
I certify that the analyses listed above, unless specifically listed as subcontracted, if any, were performed under my direction according to the approved methodologies listed
in this document, and that based upon my inquiry of those individuals immediately responsible for obtaining the information, the material contained in this report is, to the
best of my knowledge and belief, accurate and complete.
Lisa A. Worthington
Technical Representative
Page 3 of 31
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Date Received: 9/10/2020
Work Order: 20I0754Sample Description/Location:
Field Sample #: SG-1D
Sample ID: 20I0754-01
Sample Matrix: Soil Gas
Initial Vacuum(in Hg): -28
Final Vacuum(in Hg): -3
Receipt Vacuum(in Hg): -5.6
Sampled: 9/10/2020 09:36
Canister ID: 2316
Flow Controller ID: 4336
Sub Description/Location:
Canister Size: 1 liter
Flow Controller Type: Fixed-Orifice
Flow Controller Calibration
RPD Pre and Post-Sampling:
Sample Type: 10 min
RLResults AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
EPA TO-15
ppbv ug/m3
MDL MDL
Acetone 8.0 8.0 9/17/20 2:13 BRFJ19 4194.8 11
Benzene 1.1 0.20 9/17/20 2:13 BRF3.5 40.640.058 0.19
Benzyl chloride ND 0.20 9/17/20 2:13 BRFND41.00.090 0.47
Bromodichloromethane ND 0.20 9/17/20 2:13 BRFND41.30.056 0.37
Bromoform ND 0.20 9/17/20 2:13 BRFND42.10.069 0.71
Bromomethane ND 0.20 9/17/20 2:13 BRFND40.780.11 0.41
1,3-Butadiene ND 0.20 9/17/20 2:13 BRFND40.440.15 0.32
2-Butanone (MEK)1.9 8.0 9/17/20 2:13 BRFJ5.6 4240.66 2.0
Carbon Disulfide ND 2.0 9/17/20 2:13 BRFND46.20.51 1.6
Carbon Tetrachloride ND 0.20 9/17/20 2:13 BRFND41.30.053 0.33
Chlorobenzene ND 0.20 9/17/20 2:13 BRFND40.920.048 0.22
Chloroethane ND 0.20 9/17/20 2:13 BRFND40.530.20 0.52
Chloroform 3.3 0.20 9/17/20 2:13 BRF16 40.980.048 0.24
Chloromethane ND 0.40 9/17/20 2:13 BRFND40.830.15 0.32
Cyclohexane ND 0.20 9/17/20 2:13 BRFND40.690.098 0.34
Dibromochloromethane ND 0.20 9/17/20 2:13 BRFND41.70.067 0.57
1,2-Dibromoethane (EDB)ND 0.20 9/17/20 2:13 BRFND41.50.052 0.40
1,2-Dichlorobenzene ND 0.20 9/17/20 2:13 BRFND41.20.074 0.44
1,3-Dichlorobenzene ND 0.20 9/17/20 2:13 BRFND41.20.073 0.44
1,4-Dichlorobenzene ND 0.20 9/17/20 2:13 BRFND41.20.045 0.27
Dichlorodifluoromethane (Freon 12)ND 0.20 9/17/20 2:13 BRFND40.990.063 0.31
1,1-Dichloroethane ND 0.20 9/17/20 2:13 BRFND40.810.063 0.25
1,2-Dichloroethane ND 0.20 9/17/20 2:13 BRFND40.810.073 0.30
1,1-Dichloroethylene ND 0.20 9/17/20 2:13 BRFND40.790.11 0.43
cis-1,2-Dichloroethylene ND 0.20 9/17/20 2:13 BRFND40.790.068 0.27
trans-1,2-Dichloroethylene ND 0.20 9/17/20 2:13 BRFND40.790.059 0.23
1,2-Dichloropropane ND 0.20 9/17/20 2:13 BRFND40.920.072 0.33
cis-1,3-Dichloropropene ND 0.20 9/17/20 2:13 BRFND40.910.093 0.42
trans-1,3-Dichloropropene ND 0.20 9/17/20 2:13 BRFND40.910.067 0.30
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)ND 0.20 9/17/20 2:13 BRFND41.40.11 0.79
1,4-Dioxane ND 2.0 9/17/20 2:13 BRFND47.20.56 2.0
Ethanol 35 8.0 9/17/20 2:13 BRF66 4152.4 4.6
Ethyl Acetate ND 2.0 9/17/20 2:13 BRFND47.21.2 4.3
Ethylbenzene 10 0.20 9/17/20 2:13 BRF45 40.870.042 0.18
4-Ethyltoluene 8.3 0.20 9/17/20 2:13 BRF41 40.980.062 0.30
Heptane 2.1 0.20 9/17/20 2:13 BRF8.7 40.820.086 0.35
Hexachlorobutadiene ND 0.20 9/17/20 2:13 BRFND42.10.088 0.94
Hexane ND 8.0 9/17/20 2:13 BRFND4280.36 1.3
2-Hexanone (MBK)ND 0.20 9/17/20 2:13 BRFND40.820.11 0.46
Isopropanol ND 8.0 9/17/20 2:13 BRFND4201.8 4.5
Methyl tert-Butyl Ether (MTBE)ND 0.20 9/17/20 2:13 BRFND40.720.080 0.29
Methylene Chloride ND 2.0 9/17/20 2:13 BRFND46.90.46 1.6
4-Methyl-2-pentanone (MIBK)3.4 0.20 9/17/20 2:13 BRF14 40.820.10 0.43
Naphthalene ND 0.20 9/17/20 2:13 BRFND41.00.11 0.59
Propene ND 8.0 9/17/20 2:13 BRFND4140.67 1.2
Styrene 1.3 0.20 9/17/20 2:13 BRF5.5 40.850.057 0.24
1,1,2,2-Tetrachloroethane ND 0.20 9/17/20 2:13 BRFND41.40.053 0.37
Page 4 of 31
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Date Received: 9/10/2020
Work Order: 20I0754Sample Description/Location:
Field Sample #: SG-1D
Sample ID: 20I0754-01
Sample Matrix: Soil Gas
Initial Vacuum(in Hg): -28
Final Vacuum(in Hg): -3
Receipt Vacuum(in Hg): -5.6
Sampled: 9/10/2020 09:36
Canister ID: 2316
Flow Controller ID: 4336
Sub Description/Location:
Canister Size: 1 liter
Flow Controller Type: Fixed-Orifice
Flow Controller Calibration
RPD Pre and Post-Sampling:
Sample Type: 10 min
RLResults AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
EPA TO-15
ppbv ug/m3
MDL MDL
Tetrachloroethylene 5.8 0.20 9/17/20 2:13 BRF40 41.40.065 0.44
Tetrahydrofuran 1.2 2.0 9/17/20 2:13 BRFJ3.6 45.90.49 1.5
Toluene 30 0.20 9/17/20 2:13 BRF110 40.750.058 0.22
1,2,4-Trichlorobenzene ND 0.20 9/17/20 2:13 BRFND41.50.12 0.91
1,1,1-Trichloroethane ND 0.20 9/17/20 2:13 BRFND41.10.065 0.36
1,1,2-Trichloroethane ND 0.20 9/17/20 2:13 BRFND41.10.073 0.40
Trichloroethylene 0.34 0.20 9/17/20 2:13 BRF1.8 41.10.074 0.40
Trichlorofluoromethane (Freon 11)0.60 0.80 9/17/20 2:13 BRFJ3.4 44.50.15 0.85
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)ND 0.80 9/17/20 2:13 BRFND46.10.15 1.2
1,2,4-Trimethylbenzene 42 0.20 9/17/20 2:13 BRF210 40.980.046 0.22
1,3,5-Trimethylbenzene 18 0.20 9/17/20 2:13 BRF89 40.980.052 0.26
Vinyl Acetate ND 4.0 9/17/20 2:13 BRFND4140.56 2.0
Vinyl Chloride ND 0.20 9/17/20 2:13 BRFND40.510.11 0.29
m&p-Xylene 55 0.40 9/17/20 2:13 BRF240 41.70.070 0.30
o-Xylene 16 0.20 9/17/20 2:13 BRF70 40.870.054 0.23
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1)102 9/17/20 2:1370-130
Page 5 of 31
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Date Received: 9/10/2020
Work Order: 20I0754Sample Description/Location:
Field Sample #: SG-2
Sample ID: 20I0754-02
Sample Matrix: Soil Gas
Initial Vacuum(in Hg): -30
Final Vacuum(in Hg): -3
Receipt Vacuum(in Hg): -4.6
Sampled: 9/10/2020 12:30
Canister ID: 2342
Flow Controller ID: 4324
Sub Description/Location:
Canister Size: 1 liter
Flow Controller Type: Fixed-Orifice
Flow Controller Calibration
RPD Pre and Post-Sampling:
Sample Type: 10 min
RLResults AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
EPA TO-15
ppbv ug/m3
MDL MDL
Acetone 8.1 8.0 9/17/20 2:54 BRF19 4194.8 11
Benzene 1.0 0.20 9/17/20 2:54 BRF3.3 40.640.058 0.19
Benzyl chloride ND 0.20 9/17/20 2:54 BRFND41.00.090 0.47
Bromodichloromethane ND 0.20 9/17/20 2:54 BRFND41.30.056 0.37
Bromoform ND 0.20 9/17/20 2:54 BRFND42.10.069 0.71
Bromomethane ND 0.20 9/17/20 2:54 BRFND40.780.11 0.41
1,3-Butadiene ND 0.20 9/17/20 2:54 BRFND40.440.15 0.32
2-Butanone (MEK)1.7 8.0 9/17/20 2:54 BRFJ4.9 4240.66 2.0
Carbon Disulfide ND 2.0 9/17/20 2:54 BRFND46.20.51 1.6
Carbon Tetrachloride ND 0.20 9/17/20 2:54 BRFND41.30.053 0.33
Chlorobenzene ND 0.20 9/17/20 2:54 BRFND40.920.048 0.22
Chloroethane ND 0.20 9/17/20 2:54 BRFND40.530.20 0.52
Chloroform 5.5 0.20 9/17/20 2:54 BRF27 40.980.048 0.24
Chloromethane ND 0.40 9/17/20 2:54 BRFND40.830.15 0.32
Cyclohexane ND 0.20 9/17/20 2:54 BRFND40.690.098 0.34
Dibromochloromethane ND 0.20 9/17/20 2:54 BRFND41.70.067 0.57
1,2-Dibromoethane (EDB)ND 0.20 9/17/20 2:54 BRFND41.50.052 0.40
1,2-Dichlorobenzene ND 0.20 9/17/20 2:54 BRFND41.20.074 0.44
1,3-Dichlorobenzene ND 0.20 9/17/20 2:54 BRFND41.20.073 0.44
1,4-Dichlorobenzene ND 0.20 9/17/20 2:54 BRFND41.20.045 0.27
Dichlorodifluoromethane (Freon 12)ND 0.20 9/17/20 2:54 BRFND40.990.063 0.31
1,1-Dichloroethane ND 0.20 9/17/20 2:54 BRFND40.810.063 0.25
1,2-Dichloroethane ND 0.20 9/17/20 2:54 BRFND40.810.073 0.30
1,1-Dichloroethylene ND 0.20 9/17/20 2:54 BRFND40.790.11 0.43
cis-1,2-Dichloroethylene ND 0.20 9/17/20 2:54 BRFND40.790.068 0.27
trans-1,2-Dichloroethylene ND 0.20 9/17/20 2:54 BRFND40.790.059 0.23
1,2-Dichloropropane ND 0.20 9/17/20 2:54 BRFND40.920.072 0.33
cis-1,3-Dichloropropene ND 0.20 9/17/20 2:54 BRFND40.910.093 0.42
trans-1,3-Dichloropropene ND 0.20 9/17/20 2:54 BRFND40.910.067 0.30
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)ND 0.20 9/17/20 2:54 BRFND41.40.11 0.79
1,4-Dioxane ND 2.0 9/17/20 2:54 BRFND47.20.56 2.0
Ethanol 30 8.0 9/17/20 2:54 BRF56 4152.4 4.6
Ethyl Acetate ND 2.0 9/17/20 2:54 BRFND47.21.2 4.3
Ethylbenzene 4.3 0.20 9/17/20 2:54 BRF19 40.870.042 0.18
4-Ethyltoluene ND 0.20 9/17/20 2:54 BRFND40.980.062 0.30
Heptane 4.2 0.20 9/17/20 2:54 BRF17 40.820.086 0.35
Hexachlorobutadiene ND 0.20 9/17/20 2:54 BRFND42.10.088 0.94
Hexane ND 8.0 9/17/20 2:54 BRFND4280.36 1.3
2-Hexanone (MBK)ND 0.20 9/17/20 2:54 BRFND40.820.11 0.46
Isopropanol ND 8.0 9/17/20 2:54 BRFND4201.8 4.5
Methyl tert-Butyl Ether (MTBE)ND 0.20 9/17/20 2:54 BRFND40.720.080 0.29
Methylene Chloride ND 2.0 9/17/20 2:54 BRFND46.90.46 1.6
4-Methyl-2-pentanone (MIBK)ND 0.20 9/17/20 2:54 BRFND40.820.10 0.43
Naphthalene ND 0.20 9/17/20 2:54 BRFND41.00.11 0.59
Propene 4.9 8.0 9/17/20 2:54 BRFJ8.4 4140.67 1.2
Styrene ND 0.20 9/17/20 2:54 BRFND40.850.057 0.24
1,1,2,2-Tetrachloroethane ND 0.20 9/17/20 2:54 BRFND41.40.053 0.37
Page 6 of 31
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Date Received: 9/10/2020
Work Order: 20I0754Sample Description/Location:
Field Sample #: SG-2
Sample ID: 20I0754-02
Sample Matrix: Soil Gas
Initial Vacuum(in Hg): -30
Final Vacuum(in Hg): -3
Receipt Vacuum(in Hg): -4.6
Sampled: 9/10/2020 12:30
Canister ID: 2342
Flow Controller ID: 4324
Sub Description/Location:
Canister Size: 1 liter
Flow Controller Type: Fixed-Orifice
Flow Controller Calibration
RPD Pre and Post-Sampling:
Sample Type: 10 min
RLResults AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
EPA TO-15
ppbv ug/m3
MDL MDL
Tetrachloroethylene 55 0.20 9/17/20 2:54 BRF380 41.40.065 0.44
Tetrahydrofuran ND 2.0 9/17/20 2:54 BRFND45.90.49 1.5
Toluene 14 0.20 9/17/20 2:54 BRF52 40.750.058 0.22
1,2,4-Trichlorobenzene ND 0.20 9/17/20 2:54 BRFND41.50.12 0.91
1,1,1-Trichloroethane ND 0.20 9/17/20 2:54 BRFND41.10.065 0.36
1,1,2-Trichloroethane ND 0.20 9/17/20 2:54 BRFND41.10.073 0.40
Trichloroethylene 0.27 0.20 9/17/20 2:54 BRF1.4 41.10.074 0.40
Trichlorofluoromethane (Freon 11)0.36 0.80 9/17/20 2:54 BRFJ2.0 44.50.15 0.85
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)ND 0.80 9/17/20 2:54 BRFND46.10.15 1.2
1,2,4-Trimethylbenzene ND 0.20 9/17/20 2:54 BRFND40.980.046 0.22
1,3,5-Trimethylbenzene ND 0.20 9/17/20 2:54 BRFND40.980.052 0.26
Vinyl Acetate ND 4.0 9/17/20 2:54 BRFND4140.56 2.0
Vinyl Chloride ND 0.20 9/17/20 2:54 BRFND40.510.11 0.29
m&p-Xylene 19 0.40 9/17/20 2:54 BRF82 41.70.070 0.30
o-Xylene ND 0.20 9/17/20 2:54 BRFND40.870.054 0.23
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1)105 9/17/20 2:5470-130
Page 7 of 31
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Date Received: 9/10/2020
Work Order: 20I0754Sample Description/Location:
Field Sample #: SG-3
Sample ID: 20I0754-03
Sample Matrix: Soil Gas
Initial Vacuum(in Hg): -30
Final Vacuum(in Hg): -4
Receipt Vacuum(in Hg): -5.2
Sampled: 9/10/2020 13:06
Canister ID: 2100
Flow Controller ID: 4111
Sub Description/Location:
Canister Size: 1 liter
Flow Controller Type: Fixed-Orifice
Flow Controller Calibration
RPD Pre and Post-Sampling:
Sample Type: 10 min
RLResults AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
EPA TO-15
ppbv ug/m3
MDL MDL
Acetone 55 8.0 9/17/20 4:14 BRF130 4194.8 11
Benzene 0.47 0.20 9/17/20 4:14 BRF1.5 40.640.058 0.19
Benzyl chloride ND 0.20 9/17/20 4:14 BRFND41.00.090 0.47
Bromodichloromethane ND 0.20 9/17/20 4:14 BRFND41.30.056 0.37
Bromoform ND 0.20 9/17/20 4:14 BRFND42.10.069 0.71
Bromomethane ND 0.20 9/17/20 4:14 BRFND40.780.11 0.41
1,3-Butadiene ND 0.20 9/17/20 4:14 BRFND40.440.15 0.32
2-Butanone (MEK)7.4 8.0 9/17/20 4:14 BRFJ22 4240.66 2.0
Carbon Disulfide ND 2.0 9/17/20 4:14 BRFND46.20.51 1.6
Carbon Tetrachloride ND 0.20 9/17/20 4:14 BRFND41.30.053 0.33
Chlorobenzene ND 0.20 9/17/20 4:14 BRFND40.920.048 0.22
Chloroethane ND 0.20 9/17/20 4:14 BRFND40.530.20 0.52
Chloroform 8.1 0.20 9/17/20 4:14 BRF40 40.980.048 0.24
Chloromethane ND 0.40 9/17/20 4:14 BRFND40.830.15 0.32
Cyclohexane ND 0.20 9/17/20 4:14 BRFND40.690.098 0.34
Dibromochloromethane ND 0.20 9/17/20 4:14 BRFND41.70.067 0.57
1,2-Dibromoethane (EDB)ND 0.20 9/17/20 4:14 BRFND41.50.052 0.40
1,2-Dichlorobenzene ND 0.20 9/17/20 4:14 BRFND41.20.074 0.44
1,3-Dichlorobenzene ND 0.20 9/17/20 4:14 BRFND41.20.073 0.44
1,4-Dichlorobenzene ND 0.20 9/17/20 4:14 BRFND41.20.045 0.27
Dichlorodifluoromethane (Freon 12)ND 0.20 9/17/20 4:14 BRFND40.990.063 0.31
1,1-Dichloroethane ND 0.20 9/17/20 4:14 BRFND40.810.063 0.25
1,2-Dichloroethane ND 0.20 9/17/20 4:14 BRFND40.810.073 0.30
1,1-Dichloroethylene ND 0.20 9/17/20 4:14 BRFND40.790.11 0.43
cis-1,2-Dichloroethylene ND 0.20 9/17/20 4:14 BRFND40.790.068 0.27
trans-1,2-Dichloroethylene ND 0.20 9/17/20 4:14 BRFND40.790.059 0.23
1,2-Dichloropropane ND 0.20 9/17/20 4:14 BRFND40.920.072 0.33
cis-1,3-Dichloropropene ND 0.20 9/17/20 4:14 BRFND40.910.093 0.42
trans-1,3-Dichloropropene ND 0.20 9/17/20 4:14 BRFND40.910.067 0.30
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)ND 0.20 9/17/20 4:14 BRFND41.40.11 0.79
1,4-Dioxane ND 2.0 9/17/20 4:14 BRFND47.20.56 2.0
Ethanol 38 8.0 9/17/20 4:14 BRF71 4152.4 4.6
Ethyl Acetate ND 2.0 9/17/20 4:14 BRFND47.21.2 4.3
Ethylbenzene 3.6 0.20 9/17/20 4:14 BRF16 40.870.042 0.18
4-Ethyltoluene ND 0.20 9/17/20 4:14 BRFND40.980.062 0.30
Heptane 1.1 0.20 9/17/20 4:14 BRF4.4 40.820.086 0.35
Hexachlorobutadiene ND 0.20 9/17/20 4:14 BRFND42.10.088 0.94
Hexane ND 8.0 9/17/20 4:14 BRFND4280.36 1.3
2-Hexanone (MBK)ND 0.20 9/17/20 4:14 BRFND40.820.11 0.46
Isopropanol 2.3 8.0 9/17/20 4:14 BRFJ5.7 4201.8 4.5
Methyl tert-Butyl Ether (MTBE)ND 0.20 9/17/20 4:14 BRFND40.720.080 0.29
Methylene Chloride ND 2.0 9/17/20 4:14 BRFND46.90.46 1.6
4-Methyl-2-pentanone (MIBK)4.8 0.20 9/17/20 4:14 BRF20 40.820.10 0.43
Naphthalene ND 0.20 9/17/20 4:14 BRFND41.00.11 0.59
Propene ND 8.0 9/17/20 4:14 BRFND4140.67 1.2
Styrene ND 0.20 9/17/20 4:14 BRFND40.850.057 0.24
1,1,2,2-Tetrachloroethane ND 0.20 9/17/20 4:14 BRFND41.40.053 0.37
Page 8 of 31
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Date Received: 9/10/2020
Work Order: 20I0754Sample Description/Location:
Field Sample #: SG-3
Sample ID: 20I0754-03
Sample Matrix: Soil Gas
Initial Vacuum(in Hg): -30
Final Vacuum(in Hg): -4
Receipt Vacuum(in Hg): -5.2
Sampled: 9/10/2020 13:06
Canister ID: 2100
Flow Controller ID: 4111
Sub Description/Location:
Canister Size: 1 liter
Flow Controller Type: Fixed-Orifice
Flow Controller Calibration
RPD Pre and Post-Sampling:
Sample Type: 10 min
RLResults AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
EPA TO-15
ppbv ug/m3
MDL MDL
Tetrachloroethylene 55 0.20 9/17/20 4:14 BRF370 41.40.065 0.44
Tetrahydrofuran 6.3 2.0 9/17/20 4:14 BRF18 45.90.49 1.5
Toluene 9.1 0.20 9/17/20 4:14 BRF34 40.750.058 0.22
1,2,4-Trichlorobenzene ND 0.20 9/17/20 4:14 BRFND41.50.12 0.91
1,1,1-Trichloroethane ND 0.20 9/17/20 4:14 BRFND41.10.065 0.36
1,1,2-Trichloroethane ND 0.20 9/17/20 4:14 BRFND41.10.073 0.40
Trichloroethylene 0.28 0.20 9/17/20 4:14 BRF1.5 41.10.074 0.40
Trichlorofluoromethane (Freon 11)0.43 0.80 9/17/20 4:14 BRFJ2.4 44.50.15 0.85
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)ND 0.80 9/17/20 4:14 BRFND46.10.15 1.2
1,2,4-Trimethylbenzene ND 0.20 9/17/20 4:14 BRFND40.980.046 0.22
1,3,5-Trimethylbenzene ND 0.20 9/17/20 4:14 BRFND40.980.052 0.26
Vinyl Acetate ND 4.0 9/17/20 4:14 BRFND4140.56 2.0
Vinyl Chloride ND 0.20 9/17/20 4:14 BRFND40.510.11 0.29
m&p-Xylene 18 0.40 9/17/20 4:14 BRF78 41.70.070 0.30
o-Xylene ND 0.20 9/17/20 4:14 BRFND40.870.054 0.23
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1)104 9/17/20 4:1470-130
Page 9 of 31
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Date Received: 9/10/2020
Work Order: 20I0754Sample Description/Location:
Field Sample #: SG-4
Sample ID: 20I0754-04
Sample Matrix: Soil Gas
Initial Vacuum(in Hg): -30
Final Vacuum(in Hg): -4
Receipt Vacuum(in Hg): -5.9
Sampled: 9/10/2020 13:40
Canister ID: 2299
Flow Controller ID: 4261
Sub Description/Location:
Canister Size: 1 liter
Flow Controller Type: Fixed-Orifice
Flow Controller Calibration
RPD Pre and Post-Sampling:
Sample Type: 10 min
RLResults AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
EPA TO-15
ppbv ug/m3
MDL MDL
Acetone 19 8.0 9/17/20 4:54 BRF45 4194.8 11
Benzene 0.81 0.20 9/17/20 4:54 BRF2.6 40.640.058 0.19
Benzyl chloride ND 0.20 9/17/20 4:54 BRFND41.00.090 0.47
Bromodichloromethane ND 0.20 9/17/20 4:54 BRFND41.30.056 0.37
Bromoform ND 0.20 9/17/20 4:54 BRFND42.10.069 0.71
Bromomethane ND 0.20 9/17/20 4:54 BRFND40.780.11 0.41
1,3-Butadiene ND 0.20 9/17/20 4:54 BRFND40.440.15 0.32
2-Butanone (MEK)2.6 8.0 9/17/20 4:54 BRFJ7.8 4240.66 2.0
Carbon Disulfide ND 2.0 9/17/20 4:54 BRFND46.20.51 1.6
Carbon Tetrachloride ND 0.20 9/17/20 4:54 BRFND41.30.053 0.33
Chlorobenzene ND 0.20 9/17/20 4:54 BRFND40.920.048 0.22
Chloroethane ND 0.20 9/17/20 4:54 BRFND40.530.20 0.52
Chloroform 0.64 0.20 9/17/20 4:54 BRF3.1 40.980.048 0.24
Chloromethane ND 0.40 9/17/20 4:54 BRFND40.830.15 0.32
Cyclohexane ND 0.20 9/17/20 4:54 BRFND40.690.098 0.34
Dibromochloromethane ND 0.20 9/17/20 4:54 BRFND41.70.067 0.57
1,2-Dibromoethane (EDB)ND 0.20 9/17/20 4:54 BRFND41.50.052 0.40
1,2-Dichlorobenzene ND 0.20 9/17/20 4:54 BRFND41.20.074 0.44
1,3-Dichlorobenzene ND 0.20 9/17/20 4:54 BRFND41.20.073 0.44
1,4-Dichlorobenzene ND 0.20 9/17/20 4:54 BRFND41.20.045 0.27
Dichlorodifluoromethane (Freon 12)ND 0.20 9/17/20 4:54 BRFND40.990.063 0.31
1,1-Dichloroethane ND 0.20 9/17/20 4:54 BRFND40.810.063 0.25
1,2-Dichloroethane ND 0.20 9/17/20 4:54 BRFND40.810.073 0.30
1,1-Dichloroethylene ND 0.20 9/17/20 4:54 BRFND40.790.11 0.43
cis-1,2-Dichloroethylene ND 0.20 9/17/20 4:54 BRFND40.790.068 0.27
trans-1,2-Dichloroethylene ND 0.20 9/17/20 4:54 BRFND40.790.059 0.23
1,2-Dichloropropane ND 0.20 9/17/20 4:54 BRFND40.920.072 0.33
cis-1,3-Dichloropropene ND 0.20 9/17/20 4:54 BRFND40.910.093 0.42
trans-1,3-Dichloropropene ND 0.20 9/17/20 4:54 BRFND40.910.067 0.30
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)ND 0.20 9/17/20 4:54 BRFND41.40.11 0.79
1,4-Dioxane ND 2.0 9/17/20 4:54 BRFND47.20.56 2.0
Ethanol 47 8.0 9/17/20 4:54 BRF89 4152.4 4.6
Ethyl Acetate ND 2.0 9/17/20 4:54 BRFND47.21.2 4.3
Ethylbenzene 2.4 0.20 9/17/20 4:54 BRF10 40.870.042 0.18
4-Ethyltoluene ND 0.20 9/17/20 4:54 BRFND40.980.062 0.30
Heptane 5.0 0.20 9/17/20 4:54 BRF20 40.820.086 0.35
Hexachlorobutadiene ND 0.20 9/17/20 4:54 BRFND42.10.088 0.94
Hexane ND 8.0 9/17/20 4:54 BRFND4280.36 1.3
2-Hexanone (MBK)ND 0.20 9/17/20 4:54 BRFND40.820.11 0.46
Isopropanol 5.7 8.0 9/17/20 4:54 BRFJ14 4201.8 4.5
Methyl tert-Butyl Ether (MTBE)ND 0.20 9/17/20 4:54 BRFND40.720.080 0.29
Methylene Chloride ND 2.0 9/17/20 4:54 BRFND46.90.46 1.6
4-Methyl-2-pentanone (MIBK)1.2 0.20 9/17/20 4:54 BRF5.1 40.820.10 0.43
Naphthalene 0.67 0.20 9/17/20 4:54 BRF3.5 41.00.11 0.59
Propene 12 8.0 9/17/20 4:54 BRF21 4140.67 1.2
Styrene ND 0.20 9/17/20 4:54 BRFND40.850.057 0.24
1,1,2,2-Tetrachloroethane ND 0.20 9/17/20 4:54 BRFND41.40.053 0.37
Page 10 of 31
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Date Received: 9/10/2020
Work Order: 20I0754Sample Description/Location:
Field Sample #: SG-4
Sample ID: 20I0754-04
Sample Matrix: Soil Gas
Initial Vacuum(in Hg): -30
Final Vacuum(in Hg): -4
Receipt Vacuum(in Hg): -5.9
Sampled: 9/10/2020 13:40
Canister ID: 2299
Flow Controller ID: 4261
Sub Description/Location:
Canister Size: 1 liter
Flow Controller Type: Fixed-Orifice
Flow Controller Calibration
RPD Pre and Post-Sampling:
Sample Type: 10 min
RLResults AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
EPA TO-15
ppbv ug/m3
MDL MDL
Tetrachloroethylene 0.80 0.20 9/17/20 4:54 BRF5.4 41.40.065 0.44
Tetrahydrofuran 1.4 2.0 9/17/20 4:54 BRFJ4.0 45.90.49 1.5
Toluene 10 0.20 9/17/20 4:54 BRF39 40.750.058 0.22
1,2,4-Trichlorobenzene ND 0.20 9/17/20 4:54 BRFND41.50.12 0.91
1,1,1-Trichloroethane ND 0.20 9/17/20 4:54 BRFND41.10.065 0.36
1,1,2-Trichloroethane ND 0.20 9/17/20 4:54 BRFND41.10.073 0.40
Trichloroethylene 0.15 0.20 9/17/20 4:54 BRFJ0.80 41.10.074 0.40
Trichlorofluoromethane (Freon 11)ND 0.80 9/17/20 4:54 BRFND44.50.15 0.85
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)ND 0.80 9/17/20 4:54 BRFND46.10.15 1.2
1,2,4-Trimethylbenzene ND 0.20 9/17/20 4:54 BRFND40.980.046 0.22
1,3,5-Trimethylbenzene ND 0.20 9/17/20 4:54 BRFND40.980.052 0.26
Vinyl Acetate ND 4.0 9/17/20 4:54 BRFND4140.56 2.0
Vinyl Chloride ND 0.20 9/17/20 4:54 BRFND40.510.11 0.29
m&p-Xylene 9.8 0.40 9/17/20 4:54 BRF43 41.70.070 0.30
o-Xylene ND 0.20 9/17/20 4:54 BRFND40.870.054 0.23
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1)106 9/17/20 4:5470-130
Page 11 of 31
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Date Received: 9/10/2020
Work Order: 20I0754Sample Description/Location:
Field Sample #: SG-5
Sample ID: 20I0754-05
Sample Matrix: Soil Gas
Initial Vacuum(in Hg): -28
Final Vacuum(in Hg): -3
Receipt Vacuum(in Hg): -4.6
Sampled: 9/10/2020 14:15
Canister ID: 2104
Flow Controller ID: 4124
Sub Description/Location:
Canister Size: 1 liter
Flow Controller Type: Fixed-Orifice
Flow Controller Calibration
RPD Pre and Post-Sampling:
Sample Type: 10 min
RLResults AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
EPA TO-15
ppbv ug/m3
MDL MDL
Acetone ND 8.0 9/17/20 5:35 BRFND4194.8 11
Benzene 1.1 0.20 9/17/20 5:35 BRF3.6 40.640.058 0.19
Benzyl chloride ND 0.20 9/17/20 5:35 BRFND41.00.090 0.47
Bromodichloromethane ND 0.20 9/17/20 5:35 BRFND41.30.056 0.37
Bromoform ND 0.20 9/17/20 5:35 BRFND42.10.069 0.71
Bromomethane ND 0.20 9/17/20 5:35 BRFND40.780.11 0.41
1,3-Butadiene ND 0.20 9/17/20 5:35 BRFND40.440.15 0.32
2-Butanone (MEK)3.0 8.0 9/17/20 5:35 BRFJ9.0 4240.66 2.0
Carbon Disulfide ND 2.0 9/17/20 5:35 BRFND46.20.51 1.6
Carbon Tetrachloride ND 0.20 9/17/20 5:35 BRFND41.30.053 0.33
Chlorobenzene ND 0.20 9/17/20 5:35 BRFND40.920.048 0.22
Chloroethane ND 0.20 9/17/20 5:35 BRFND40.530.20 0.52
Chloroform ND 0.20 9/17/20 5:35 BRFND40.980.048 0.24
Chloromethane ND 0.40 9/17/20 5:35 BRFND40.830.15 0.32
Cyclohexane ND 0.20 9/17/20 5:35 BRFND40.690.098 0.34
Dibromochloromethane ND 0.20 9/17/20 5:35 BRFND41.70.067 0.57
1,2-Dibromoethane (EDB)ND 0.20 9/17/20 5:35 BRFND41.50.052 0.40
1,2-Dichlorobenzene ND 0.20 9/17/20 5:35 BRFND41.20.074 0.44
1,3-Dichlorobenzene ND 0.20 9/17/20 5:35 BRFND41.20.073 0.44
1,4-Dichlorobenzene ND 0.20 9/17/20 5:35 BRFND41.20.045 0.27
Dichlorodifluoromethane (Freon 12)ND 0.20 9/17/20 5:35 BRFND40.990.063 0.31
1,1-Dichloroethane ND 0.20 9/17/20 5:35 BRFND40.810.063 0.25
1,2-Dichloroethane ND 0.20 9/17/20 5:35 BRFND40.810.073 0.30
1,1-Dichloroethylene ND 0.20 9/17/20 5:35 BRFND40.790.11 0.43
cis-1,2-Dichloroethylene ND 0.20 9/17/20 5:35 BRFND40.790.068 0.27
trans-1,2-Dichloroethylene ND 0.20 9/17/20 5:35 BRFND40.790.059 0.23
1,2-Dichloropropane ND 0.20 9/17/20 5:35 BRFND40.920.072 0.33
cis-1,3-Dichloropropene ND 0.20 9/17/20 5:35 BRFND40.910.093 0.42
trans-1,3-Dichloropropene ND 0.20 9/17/20 5:35 BRFND40.910.067 0.30
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)ND 0.20 9/17/20 5:35 BRFND41.40.11 0.79
1,4-Dioxane ND 2.0 9/17/20 5:35 BRFND47.20.56 2.0
Ethanol 24 8.0 9/17/20 5:35 BRF45 4152.4 4.6
Ethyl Acetate ND 2.0 9/17/20 5:35 BRFND47.21.2 4.3
Ethylbenzene 3.4 0.20 9/17/20 5:35 BRF15 40.870.042 0.18
4-Ethyltoluene ND 0.20 9/17/20 5:35 BRFND40.980.062 0.30
Heptane 2.9 0.20 9/17/20 5:35 BRF12 40.820.086 0.35
Hexachlorobutadiene ND 0.20 9/17/20 5:35 BRFND42.10.088 0.94
Hexane 2.9 8.0 9/17/20 5:35 BRFJ10 4280.36 1.3
2-Hexanone (MBK)ND 0.20 9/17/20 5:35 BRFND40.820.11 0.46
Isopropanol ND 8.0 9/17/20 5:35 BRFND4201.8 4.5
Methyl tert-Butyl Ether (MTBE)ND 0.20 9/17/20 5:35 BRFND40.720.080 0.29
Methylene Chloride ND 2.0 9/17/20 5:35 BRFND46.90.46 1.6
4-Methyl-2-pentanone (MIBK)2.4 0.20 9/17/20 5:35 BRF9.8 40.820.10 0.43
Naphthalene 0.55 0.20 9/17/20 5:35 BRF2.9 41.00.11 0.59
Propene ND 8.0 9/17/20 5:35 BRFND4140.67 1.2
Styrene ND 0.20 9/17/20 5:35 BRFND40.850.057 0.24
1,1,2,2-Tetrachloroethane ND 0.20 9/17/20 5:35 BRFND41.40.053 0.37
Page 12 of 31
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Date Received: 9/10/2020
Work Order: 20I0754Sample Description/Location:
Field Sample #: SG-5
Sample ID: 20I0754-05
Sample Matrix: Soil Gas
Initial Vacuum(in Hg): -28
Final Vacuum(in Hg): -3
Receipt Vacuum(in Hg): -4.6
Sampled: 9/10/2020 14:15
Canister ID: 2104
Flow Controller ID: 4124
Sub Description/Location:
Canister Size: 1 liter
Flow Controller Type: Fixed-Orifice
Flow Controller Calibration
RPD Pre and Post-Sampling:
Sample Type: 10 min
RLResults AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
EPA TO-15
ppbv ug/m3
MDL MDL
Tetrachloroethylene 1.4 0.20 9/17/20 5:35 BRF9.6 41.40.065 0.44
Tetrahydrofuran 2.4 2.0 9/17/20 5:35 BRF7.2 45.90.49 1.5
Toluene 10 0.20 9/17/20 5:35 BRF39 40.750.058 0.22
1,2,4-Trichlorobenzene ND 0.20 9/17/20 5:35 BRFND41.50.12 0.91
1,1,1-Trichloroethane ND 0.20 9/17/20 5:35 BRFND41.10.065 0.36
1,1,2-Trichloroethane ND 0.20 9/17/20 5:35 BRFND41.10.073 0.40
Trichloroethylene ND 0.20 9/17/20 5:35 BRFND41.10.074 0.40
Trichlorofluoromethane (Freon 11)ND 0.80 9/17/20 5:35 BRFND44.50.15 0.85
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)ND 0.80 9/17/20 5:35 BRFND46.10.15 1.2
1,2,4-Trimethylbenzene ND 0.20 9/17/20 5:35 BRFND40.980.046 0.22
1,3,5-Trimethylbenzene ND 0.20 9/17/20 5:35 BRFND40.980.052 0.26
Vinyl Acetate ND 4.0 9/17/20 5:35 BRFND4140.56 2.0
Vinyl Chloride ND 0.20 9/17/20 5:35 BRFND40.510.11 0.29
m&p-Xylene 16 0.40 9/17/20 5:35 BRF71 41.70.070 0.30
o-Xylene ND 0.20 9/17/20 5:35 BRFND40.870.054 0.23
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1)106 9/17/20 5:3570-130
Page 13 of 31
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Date Received: 9/10/2020
Work Order: 20I0754Sample Description/Location:
Field Sample #: SG-6
Sample ID: 20I0754-06
Sample Matrix: Soil Gas
Initial Vacuum(in Hg): -29
Final Vacuum(in Hg): -3
Receipt Vacuum(in Hg): -5.2
Sampled: 9/10/2020 14:55
Canister ID: 2305
Flow Controller ID: 4115
Sub Description/Location:
Canister Size: 1 liter
Flow Controller Type: Fixed-Orifice
Flow Controller Calibration
RPD Pre and Post-Sampling:
Sample Type: 10 min
RLResults AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
EPA TO-15
ppbv ug/m3
MDL MDL
Acetone 70 8.0 9/17/20 6:15 BRF170 4194.8 11
Benzene 1.5 0.20 9/17/20 6:15 BRF4.9 40.640.058 0.19
Benzyl chloride ND 0.20 9/17/20 6:15 BRFND41.00.090 0.47
Bromodichloromethane ND 0.20 9/17/20 6:15 BRFND41.30.056 0.37
Bromoform ND 0.20 9/17/20 6:15 BRFND42.10.069 0.71
Bromomethane ND 0.20 9/17/20 6:15 BRFND40.780.11 0.41
1,3-Butadiene ND 0.20 9/17/20 6:15 BRFND40.440.15 0.32
2-Butanone (MEK)9.0 8.0 9/17/20 6:15 BRF27 4240.66 2.0
Carbon Disulfide ND 2.0 9/17/20 6:15 BRFND46.20.51 1.6
Carbon Tetrachloride ND 0.20 9/17/20 6:15 BRFND41.30.053 0.33
Chlorobenzene ND 0.20 9/17/20 6:15 BRFND40.920.048 0.22
Chloroethane ND 0.20 9/17/20 6:15 BRFND40.530.20 0.52
Chloroform ND 0.20 9/17/20 6:15 BRFND40.980.048 0.24
Chloromethane ND 0.40 9/17/20 6:15 BRFND40.830.15 0.32
Cyclohexane ND 0.20 9/17/20 6:15 BRFND40.690.098 0.34
Dibromochloromethane ND 0.20 9/17/20 6:15 BRFND41.70.067 0.57
1,2-Dibromoethane (EDB)ND 0.20 9/17/20 6:15 BRFND41.50.052 0.40
1,2-Dichlorobenzene ND 0.20 9/17/20 6:15 BRFND41.20.074 0.44
1,3-Dichlorobenzene ND 0.20 9/17/20 6:15 BRFND41.20.073 0.44
1,4-Dichlorobenzene ND 0.20 9/17/20 6:15 BRFND41.20.045 0.27
Dichlorodifluoromethane (Freon 12)ND 0.20 9/17/20 6:15 BRFND40.990.063 0.31
1,1-Dichloroethane ND 0.20 9/17/20 6:15 BRFND40.810.063 0.25
1,2-Dichloroethane ND 0.20 9/17/20 6:15 BRFND40.810.073 0.30
1,1-Dichloroethylene ND 0.20 9/17/20 6:15 BRFND40.790.11 0.43
cis-1,2-Dichloroethylene ND 0.20 9/17/20 6:15 BRFND40.790.068 0.27
trans-1,2-Dichloroethylene ND 0.20 9/17/20 6:15 BRFND40.790.059 0.23
1,2-Dichloropropane ND 0.20 9/17/20 6:15 BRFND40.920.072 0.33
cis-1,3-Dichloropropene ND 0.20 9/17/20 6:15 BRFND40.910.093 0.42
trans-1,3-Dichloropropene ND 0.20 9/17/20 6:15 BRFND40.910.067 0.30
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)ND 0.20 9/17/20 6:15 BRFND41.40.11 0.79
1,4-Dioxane ND 2.0 9/17/20 6:15 BRFND47.20.56 2.0
Ethanol 19 8.0 9/17/20 6:15 BRF36 4152.4 4.6
Ethyl Acetate ND 2.0 9/17/20 6:15 BRFND47.21.2 4.3
Ethylbenzene 3.9 0.20 9/17/20 6:15 BRF17 40.870.042 0.18
4-Ethyltoluene ND 0.20 9/17/20 6:15 BRFND40.980.062 0.30
Heptane 2.7 0.20 9/17/20 6:15 BRF11 40.820.086 0.35
Hexachlorobutadiene ND 0.20 9/17/20 6:15 BRFND42.10.088 0.94
Hexane ND 8.0 9/17/20 6:15 BRFND4280.36 1.3
2-Hexanone (MBK)ND 0.20 9/17/20 6:15 BRFND40.820.11 0.46
Isopropanol ND 8.0 9/17/20 6:15 BRFND4201.8 4.5
Methyl tert-Butyl Ether (MTBE)ND 0.20 9/17/20 6:15 BRFND40.720.080 0.29
Methylene Chloride ND 2.0 9/17/20 6:15 BRFND46.90.46 1.6
4-Methyl-2-pentanone (MIBK)3.9 0.20 9/17/20 6:15 BRF16 40.820.10 0.43
Naphthalene ND 0.20 9/17/20 6:15 BRFND41.00.11 0.59
Propene ND 8.0 9/17/20 6:15 BRFND4140.67 1.2
Styrene ND 0.20 9/17/20 6:15 BRFND40.850.057 0.24
1,1,2,2-Tetrachloroethane ND 0.20 9/17/20 6:15 BRFND41.40.053 0.37
Page 14 of 31
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Date Received: 9/10/2020
Work Order: 20I0754Sample Description/Location:
Field Sample #: SG-6
Sample ID: 20I0754-06
Sample Matrix: Soil Gas
Initial Vacuum(in Hg): -29
Final Vacuum(in Hg): -3
Receipt Vacuum(in Hg): -5.2
Sampled: 9/10/2020 14:55
Canister ID: 2305
Flow Controller ID: 4115
Sub Description/Location:
Canister Size: 1 liter
Flow Controller Type: Fixed-Orifice
Flow Controller Calibration
RPD Pre and Post-Sampling:
Sample Type: 10 min
RLResults AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
EPA TO-15
ppbv ug/m3
MDL MDL
Tetrachloroethylene 1.7 0.20 9/17/20 6:15 BRF12 41.40.065 0.44
Tetrahydrofuran 8.1 2.0 9/17/20 6:15 BRF24 45.90.49 1.5
Toluene 14 0.20 9/17/20 6:15 BRF52 40.750.058 0.22
1,2,4-Trichlorobenzene ND 0.20 9/17/20 6:15 BRFND41.50.12 0.91
1,1,1-Trichloroethane ND 0.20 9/17/20 6:15 BRFND41.10.065 0.36
1,1,2-Trichloroethane ND 0.20 9/17/20 6:15 BRFND41.10.073 0.40
Trichloroethylene ND 0.20 9/17/20 6:15 BRFND41.10.074 0.40
Trichlorofluoromethane (Freon 11)ND 0.80 9/17/20 6:15 BRFND44.50.15 0.85
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)ND 0.80 9/17/20 6:15 BRFND46.10.15 1.2
1,2,4-Trimethylbenzene ND 0.20 9/17/20 6:15 BRFND40.980.046 0.22
1,3,5-Trimethylbenzene ND 0.20 9/17/20 6:15 BRFND40.980.052 0.26
Vinyl Acetate ND 4.0 9/17/20 6:15 BRFND4140.56 2.0
Vinyl Chloride ND 0.20 9/17/20 6:15 BRFND40.510.11 0.29
m&p-Xylene 17 0.40 9/17/20 6:15 BRF74 41.70.070 0.30
o-Xylene ND 0.20 9/17/20 6:15 BRFND40.870.054 0.23
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1)106 9/17/20 6:1570-130
Page 15 of 31
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Date Received: 9/10/2020
Work Order: 20I0754Sample Description/Location:
Field Sample #: DUP-1
Sample ID: 20I0754-07
Sample Matrix: Soil Gas
Initial Vacuum(in Hg): -30
Final Vacuum(in Hg): -3
Receipt Vacuum(in Hg): -3.6
Sampled: 9/10/2020 00:00
Canister ID: 2306
Flow Controller ID: 4325
Sub Description/Location:
Canister Size: 1 liter
Flow Controller Type: Fixed-Orifice
Flow Controller Calibration
RPD Pre and Post-Sampling:
Sample Type: 10 min
RLResults AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
EPA TO-15
ppbv ug/m3
MDL MDL
Acetone 8.8 8.0 9/17/20 6:56 BRF21 4194.8 11
Benzene 1.1 0.20 9/17/20 6:56 BRF3.6 40.640.058 0.19
Benzyl chloride ND 0.20 9/17/20 6:56 BRFND41.00.090 0.47
Bromodichloromethane ND 0.20 9/17/20 6:56 BRFND41.30.056 0.37
Bromoform ND 0.20 9/17/20 6:56 BRFND42.10.069 0.71
Bromomethane ND 0.20 9/17/20 6:56 BRFND40.780.11 0.41
1,3-Butadiene ND 0.20 9/17/20 6:56 BRFND40.440.15 0.32
2-Butanone (MEK)2.7 8.0 9/17/20 6:56 BRFJ7.9 4240.66 2.0
Carbon Disulfide ND 2.0 9/17/20 6:56 BRFND46.20.51 1.6
Carbon Tetrachloride ND 0.20 9/17/20 6:56 BRFND41.30.053 0.33
Chlorobenzene ND 0.20 9/17/20 6:56 BRFND40.920.048 0.22
Chloroethane ND 0.20 9/17/20 6:56 BRFND40.530.20 0.52
Chloroform 3.4 0.20 9/17/20 6:56 BRF17 40.980.048 0.24
Chloromethane ND 0.40 9/17/20 6:56 BRFND40.830.15 0.32
Cyclohexane ND 0.20 9/17/20 6:56 BRFND40.690.098 0.34
Dibromochloromethane ND 0.20 9/17/20 6:56 BRFND41.70.067 0.57
1,2-Dibromoethane (EDB)ND 0.20 9/17/20 6:56 BRFND41.50.052 0.40
1,2-Dichlorobenzene ND 0.20 9/17/20 6:56 BRFND41.20.074 0.44
1,3-Dichlorobenzene ND 0.20 9/17/20 6:56 BRFND41.20.073 0.44
1,4-Dichlorobenzene ND 0.20 9/17/20 6:56 BRFND41.20.045 0.27
Dichlorodifluoromethane (Freon 12)ND 0.20 9/17/20 6:56 BRFND40.990.063 0.31
1,1-Dichloroethane ND 0.20 9/17/20 6:56 BRFND40.810.063 0.25
1,2-Dichloroethane ND 0.20 9/17/20 6:56 BRFND40.810.073 0.30
1,1-Dichloroethylene ND 0.20 9/17/20 6:56 BRFND40.790.11 0.43
cis-1,2-Dichloroethylene ND 0.20 9/17/20 6:56 BRFND40.790.068 0.27
trans-1,2-Dichloroethylene ND 0.20 9/17/20 6:56 BRFND40.790.059 0.23
1,2-Dichloropropane ND 0.20 9/17/20 6:56 BRFND40.920.072 0.33
cis-1,3-Dichloropropene ND 0.20 9/17/20 6:56 BRFND40.910.093 0.42
trans-1,3-Dichloropropene ND 0.20 9/17/20 6:56 BRFND40.910.067 0.30
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)ND 0.20 9/17/20 6:56 BRFND41.40.11 0.79
1,4-Dioxane ND 2.0 9/17/20 6:56 BRFND47.20.56 2.0
Ethanol 20 8.0 9/17/20 6:56 BRF38 4152.4 4.6
Ethyl Acetate ND 2.0 9/17/20 6:56 BRFND47.21.2 4.3
Ethylbenzene 12 0.20 9/17/20 6:56 BRF53 40.870.042 0.18
4-Ethyltoluene 9.7 0.20 9/17/20 6:56 BRF48 40.980.062 0.30
Heptane 2.1 0.20 9/17/20 6:56 BRF8.5 40.820.086 0.35
Hexachlorobutadiene ND 0.20 9/17/20 6:56 BRFND42.10.088 0.94
Hexane ND 8.0 9/17/20 6:56 BRFND4280.36 1.3
2-Hexanone (MBK)ND 0.20 9/17/20 6:56 BRFND40.820.11 0.46
Isopropanol ND 8.0 9/17/20 6:56 BRFND4201.8 4.5
Methyl tert-Butyl Ether (MTBE)ND 0.20 9/17/20 6:56 BRFND40.720.080 0.29
Methylene Chloride ND 2.0 9/17/20 6:56 BRFND46.90.46 1.6
4-Methyl-2-pentanone (MIBK)4.8 0.20 9/17/20 6:56 BRF20 40.820.10 0.43
Naphthalene ND 0.20 9/17/20 6:56 BRFND41.00.11 0.59
Propene ND 8.0 9/17/20 6:56 BRFND4140.67 1.2
Styrene 1.6 0.20 9/17/20 6:56 BRF6.7 40.850.057 0.24
1,1,2,2-Tetrachloroethane ND 0.20 9/17/20 6:56 BRFND41.40.053 0.37
Page 16 of 31
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Date Received: 9/10/2020
Work Order: 20I0754Sample Description/Location:
Field Sample #: DUP-1
Sample ID: 20I0754-07
Sample Matrix: Soil Gas
Initial Vacuum(in Hg): -30
Final Vacuum(in Hg): -3
Receipt Vacuum(in Hg): -3.6
Sampled: 9/10/2020 00:00
Canister ID: 2306
Flow Controller ID: 4325
Sub Description/Location:
Canister Size: 1 liter
Flow Controller Type: Fixed-Orifice
Flow Controller Calibration
RPD Pre and Post-Sampling:
Sample Type: 10 min
RLResults AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
EPA TO-15
ppbv ug/m3
MDL MDL
Tetrachloroethylene 6.7 0.20 9/17/20 6:56 BRF46 41.40.065 0.44
Tetrahydrofuran 1.7 2.0 9/17/20 6:56 BRFJ5.1 45.90.49 1.5
Toluene 33 0.20 9/17/20 6:56 BRF120 40.750.058 0.22
1,2,4-Trichlorobenzene ND 0.20 9/17/20 6:56 BRFND41.50.12 0.91
1,1,1-Trichloroethane ND 0.20 9/17/20 6:56 BRFND41.10.065 0.36
1,1,2-Trichloroethane ND 0.20 9/17/20 6:56 BRFND41.10.073 0.40
Trichloroethylene 0.37 0.20 9/17/20 6:56 BRF2.0 41.10.074 0.40
Trichlorofluoromethane (Freon 11)0.58 0.80 9/17/20 6:56 BRFJ3.3 44.50.15 0.85
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)ND 0.80 9/17/20 6:56 BRFND46.10.15 1.2
1,2,4-Trimethylbenzene 48 0.20 9/17/20 6:56 BRF230 40.980.046 0.22
1,3,5-Trimethylbenzene 21 0.20 9/17/20 6:56 BRF100 40.980.052 0.26
Vinyl Acetate ND 4.0 9/17/20 6:56 BRFND4140.56 2.0
Vinyl Chloride ND 0.20 9/17/20 6:56 BRFND40.510.11 0.29
m&p-Xylene 63 0.40 9/17/20 6:56 BRF270 41.70.070 0.30
o-Xylene 19 0.20 9/17/20 6:56 BRF81 40.870.054 0.23
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1)107 9/17/20 6:5670-130
Page 17 of 31
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Sample Extraction Data
Prep Method: TO-15 Prep-EPA TO-15
Lab Number [Field ID]Batch Date
Pressure
Dilution
Pre
Dilution
Pre-Dil
Initial
mL
Pre-Dil
Final
mL
Default
Injection
mL
Actual
Injection
mL
20I0754-01 [SG-1D]B266701 1.5 1 N/A 1000 400 150 09/16/20
20I0754-02 [SG-2]B266701 1.5 1 N/A 1000 400 150 09/16/20
20I0754-03 [SG-3]B266701 1.5 1 N/A 1000 400 150 09/16/20
20I0754-04 [SG-4]B266701 1.5 1 N/A 1000 400 150 09/16/20
20I0754-05 [SG-5]B266701 1.5 1 N/A 1000 400 150 09/16/20
20I0754-06 [SG-6]B266701 1.5 1 N/A 1000 400 150 09/16/20
20I0754-07 [DUP-1]B266701 1.5 1 N/A 1000 400 150 09/16/20
Page 18 of 31
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ug/m3 Spike Level
Result
Source
%REC
%REC
Limits RPD
RPD
Limit Flag/Qual Analyte
Air Toxics by EPA Compendium Methods - Quality Control
QUALITY CONTROL
RL
ppbv
Results RL Results ppbv
Batch B266701 - TO-15 Prep
Blank (B266701-BLK1)Prepared & Analyzed: 09/16/20
0.80NDAcetone
0.020NDBenzene
0.020NDBenzyl chloride
0.020NDBromodichloromethane
0.020NDBromoform
0.020NDBromomethane
0.020ND1,3-Butadiene
0.80ND2-Butanone (MEK)
0.20NDCarbon Disulfide
0.020NDCarbon Tetrachloride
0.020NDChlorobenzene
0.020NDChloroethane
0.020NDChloroform
0.040NDChloromethane
0.020NDCyclohexane
0.020NDDibromochloromethane
0.020ND1,2-Dibromoethane (EDB)
0.020ND1,2-Dichlorobenzene
0.020ND1,3-Dichlorobenzene
0.020ND1,4-Dichlorobenzene
0.020NDDichlorodifluoromethane (Freon 12)
0.020ND1,1-Dichloroethane
0.020ND1,2-Dichloroethane
0.020ND1,1-Dichloroethylene
0.020NDcis-1,2-Dichloroethylene
0.020NDtrans-1,2-Dichloroethylene
0.020ND1,2-Dichloropropane
0.020NDcis-1,3-Dichloropropene
0.020NDtrans-1,3-Dichloropropene
0.020ND1,2-Dichloro-1,1,2,2-tetrafluoroethane
(Freon 114)
0.20ND1,4-Dioxane
0.80NDEthanol
0.20NDEthyl Acetate
0.020NDEthylbenzene
0.020ND4-Ethyltoluene
0.020NDHeptane
0.020NDHexachlorobutadiene
0.80NDHexane
0.020ND2-Hexanone (MBK)
0.80NDIsopropanol
0.020NDMethyl tert-Butyl Ether (MTBE)
0.20NDMethylene Chloride
0.020ND4-Methyl-2-pentanone (MIBK)
0.020NDNaphthalene
0.80NDPropene
0.020NDStyrene
Page 19 of 31
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ug/m3 Spike Level
Result
Source
%REC
%REC
Limits RPD
RPD
Limit Flag/Qual Analyte
Air Toxics by EPA Compendium Methods - Quality Control
QUALITY CONTROL
RL
ppbv
Results RL Results ppbv
Batch B266701 - TO-15 Prep
Blank (B266701-BLK1)Prepared & Analyzed: 09/16/20
0.020ND1,1,2,2-Tetrachloroethane
0.020NDTetrachloroethylene
0.20NDTetrahydrofuran
0.020NDToluene
0.020ND1,2,4-Trichlorobenzene
0.020ND1,1,1-Trichloroethane
0.020ND1,1,2-Trichloroethane
0.020NDTrichloroethylene
0.080NDTrichlorofluoromethane (Freon 11)
0.080ND1,1,2-Trichloro-1,2,2-trifluoroethane (Freon
113)
0.020ND1,2,4-Trimethylbenzene
0.020ND1,3,5-Trimethylbenzene
0.40NDVinyl Acetate
0.020NDVinyl Chloride
0.040NDm&p-Xylene
0.020NDo-Xylene
8.00 70-130Surrogate: 4-Bromofluorobenzene (1)95.77.66
LCS (B266701-BS1)Prepared & Analyzed: 09/16/20
5.00 70-13085.34.26Acetone
5.00 70-13099.34.96Benzene
5.00 70-1301165.78Benzyl chloride
5.00 70-13098.74.93Bromodichloromethane
5.00 70-1301085.41Bromoform
5.00 70-13078.43.92Bromomethane
5.00 70-13073.63.681,3-Butadiene
5.00 70-13092.64.632-Butanone (MEK)
5.00 70-13087.24.36Carbon Disulfide
5.00 70-1301015.03Carbon Tetrachloride
5.00 70-13098.44.92Chlorobenzene
5.00 70-13074.53.72Chloroethane
5.00 70-13081.84.09Chloroform
5.00 70-13074.83.74Chloromethane
5.00 70-13089.04.45Cyclohexane
5.00 70-1301085.38Dibromochloromethane
5.00 70-13094.54.731,2-Dibromoethane (EDB)
5.00 70-1301145.721,2-Dichlorobenzene
5.00 70-1301125.601,3-Dichlorobenzene
5.00 70-1301095.471,4-Dichlorobenzene
5.00 70-13089.74.49Dichlorodifluoromethane (Freon 12)
5.00 70-13088.24.411,1-Dichloroethane
5.00 70-13081.44.071,2-Dichloroethane
5.00 70-13085.84.291,1-Dichloroethylene
5.00 70-13080.54.02cis-1,2-Dichloroethylene
5.00 70-13086.24.31trans-1,2-Dichloroethylene
5.00 70-13097.34.861,2-Dichloropropane
Page 20 of 31
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ug/m3 Spike Level
Result
Source
%REC
%REC
Limits RPD
RPD
Limit Flag/Qual Analyte
Air Toxics by EPA Compendium Methods - Quality Control
QUALITY CONTROL
RL
ppbv
Results RL Results ppbv
Batch B266701 - TO-15 Prep
LCS (B266701-BS1)Prepared & Analyzed: 09/16/20
5.00 70-13090.24.51cis-1,3-Dichloropropene
5.00 70-13099.24.96trans-1,3-Dichloropropene
5.00 70-13079.63.981,2-Dichloro-1,1,2,2-tetrafluoroethane
(Freon 114)
5.00 70-1301085.401,4-Dioxane
5.00 70-13088.14.41Ethanol
5.00 70-13080.54.02Ethyl Acetate
5.00 70-13097.44.87Ethylbenzene
5.00 70-1301085.394-Ethyltoluene
5.00 70-13097.64.88Heptane
5.00 70-1301025.11Hexachlorobutadiene
5.00 70-13091.04.55Hexane
5.00 70-1301095.462-Hexanone (MBK)
5.00 70-13080.44.02Isopropanol
5.00 70-13085.54.28Methyl tert-Butyl Ether (MTBE)
5.00 70-13077.73.89Methylene Chloride
5.00 70-1301115.534-Methyl-2-pentanone (MIBK)
5.00 70-1301306.49Naphthalene
5.00 70-13085.24.26Propene
5.00 70-13099.24.96Styrene
5.00 70-1301045.211,1,2,2-Tetrachloroethane
5.00 70-13090.44.52Tetrachloroethylene
5.00 70-13090.34.52Tetrahydrofuran
5.00 70-13097.34.87Toluene
5.00 70-1301256.261,2,4-Trichlorobenzene
5.00 70-13089.94.501,1,1-Trichloroethane
5.00 70-13092.34.611,1,2-Trichloroethane
5.00 70-13092.64.63Trichloroethylene
5.00 70-13091.24.56Trichlorofluoromethane (Freon 11)
5.00 70-13085.74.281,1,2-Trichloro-1,2,2-trifluoroethane (Freon
113)
5.00 70-1301075.361,2,4-Trimethylbenzene
5.00 70-1301025.121,3,5-Trimethylbenzene
5.00 70-13076.13.81Vinyl Acetate
5.00 70-13079.23.96Vinyl Chloride
10.0 70-13010010.0m&p-Xylene
5.00 70-13099.64.98o-Xylene
8.00 70-130Surrogate: 4-Bromofluorobenzene (1)1028.12
Page 21 of 31
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Note: Blank Subtraction is not performed unless otherwise noted
*QC result is outside of established limits.
Wide recovery limits established for difficult compound.
Wide RPD limits established for difficult compound.
#Data exceeded client recommended or regulatory level
RL Reporting Limit
MDL Method Detection Limit
RPD Relative Percent Difference
LCS Laboratory Control Sample
Laboratory Control SampleLCS Dup Duplicate Laboratory Control Sample
MS Matrix Spike Sample
MS Dup Duplicate Matrix Spike Sample
REC Recovery
QC Quality Control
ppbv Parts per billion volume
EPA United States Environmental Protection Agency
Percent Recovery% REC
ND Not Detected
Percent recoveries and relative percent differences (RPDs) are determined by the software using values in the
calculation which have not been rounded.
Not ApplicableN/A
DL Detection Limit
Not CalculatedNC
LFB/LCS Lab Fortified Blank/Lab Control Sample
ORP Oxidation-Reduction Potential
Not dry weight correctedwet
Percent weight% wt
KilogramKg
Gramg
Milligrammg
Microgramg
Nanogramng
LiterL
MillilitermL
Microliter L
Cubic Meterm3
Extractable Petroleum HydrocarbonsEPH
Volatile Petroleum HydrocarbonsVPH
Air Petroleum HydrocarbonsAPH
Flame Ionization DetectorFID
Photo Ionization DetectorPID
FLAG/QUALIFIER SUMMARY
Detected but below the Reporting Limit (lowest calibration standard); therefore, result is an estimated
concentration (CLP J-Flag).
J
ANALYST
Raisa A. PetraitisRAP
PDF Management StationSTATION
Kerry K. McGeeKKM
Brittany R. FiskBRF
Page 22 of 31
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
INTERNAL STANDARD AREA AND RT SUMMARY
EPA TO-15
RTResponseInternal Standard Area %RT DiffResponse
Reference
RT
Reference Area %
Limits
RT Diff
Limit Q
Initial Cal Check (S050606-ICV1 )Lab File ID: G2020617.D Analyzed: 07/24/20 19:18
Bromochloromethane (1)517660 8.515 520641 8.521 60 - 14099 -0.0060 +/-0.50
1,4-Difluorobenzene (1)1364277 10.295 1344293 10.295 60 - 140101 0.0000 +/-0.50
Chlorobenzene-d5 (1)1228652 14.673 1216922 14.672 60 - 140101 0.0010 +/-0.50
INTERNAL STANDARD AREA AND RT SUMMARY
EPA TO-15
RTResponseInternal Standard Area %RT DiffResponse
Reference
RT
Reference Area %
Limits
RT Diff
Limit Q
Calibration Check (S052464-CCV1 )Lab File ID: G2026004.D Analyzed: 09/16/20 10:54
Bromochloromethane (1)570266 8.515 520641 8.521 60 - 140110 -0.0060 +/-0.50
1,4-Difluorobenzene (1)1224310 10.295 1344293 10.295 60 - 14091 0.0000 +/-0.50
Chlorobenzene-d5 (1)1118907 14.673 1216922 14.672 60 - 14092 0.0010 +/-0.50
LCS (B266701-BS1 )Lab File ID: G2026005.D Analyzed: 09/16/20 11:34
Bromochloromethane (1)573130 8.521 570266 8.515 60 - 140101 0.0060 +/-0.50
1,4-Difluorobenzene (1)1219109 10.295 1224310 10.295 60 - 140100 0.0000 +/-0.50
Chlorobenzene-d5 (1)1122297 14.673 1118907 14.673 60 - 140100 0.0000 +/-0.50
Blank (B266701-BLK1 )Lab File ID: G2026010.D Analyzed: 09/16/20 15:05
Bromochloromethane (1)560363 8.521 570266 8.515 60 - 14098 0.0060 +/-0.50
1,4-Difluorobenzene (1)1153400 10.295 1224310 10.295 60 - 14094 0.0000 +/-0.50
Chlorobenzene-d5 (1)1063882 14.673 1118907 14.673 60 - 14095 0.0000 +/-0.50
SG-1D (20I0754-01 )Lab File ID: G2026025.D Analyzed: 09/17/20 02:13
Bromochloromethane (1)533801 8.521 570266 8.515 60 - 14094 0.0060 +/-0.50
1,4-Difluorobenzene (1)1140057 10.295 1224310 10.295 60 - 14093 0.0000 +/-0.50
Chlorobenzene-d5 (1)1042453 14.673 1118907 14.673 60 - 14093 0.0000 +/-0.50
SG-2 (20I0754-02 )Lab File ID: G2026026.D Analyzed: 09/17/20 02:54
Bromochloromethane (1)559959 8.521 570266 8.515 60 - 14098 0.0060 +/-0.50
1,4-Difluorobenzene (1)1183120 10.295 1224310 10.295 60 - 14097 0.0000 +/-0.50
Chlorobenzene-d5 (1)1092166 14.672 1118907 14.673 60 - 14098 -0.0010 +/-0.50
SG-3 (20I0754-03 )Lab File ID: G2026028.D Analyzed: 09/17/20 04:14
Bromochloromethane (1)553332 8.521 570266 8.515 60 - 14097 0.0060 +/-0.50
1,4-Difluorobenzene (1)1164860 10.295 1224310 10.295 60 - 14095 0.0000 +/-0.50
Chlorobenzene-d5 (1)1082415 14.672 1118907 14.673 60 - 14097 -0.0010 +/-0.50
SG-4 (20I0754-04 )Lab File ID: G2026029.D Analyzed: 09/17/20 04:54
Bromochloromethane (1)612827 8.521 570266 8.515 60 - 140107 0.0060 +/-0.50
1,4-Difluorobenzene (1)1271560 10.295 1224310 10.295 60 - 140104 0.0000 +/-0.50
Chlorobenzene-d5 (1)1169516 14.673 1118907 14.673 60 - 140105 0.0000 +/-0.50
Page 23 of 31
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
INTERNAL STANDARD AREA AND RT SUMMARY
EPA TO-15
RTResponseInternal Standard Area %RT DiffResponse
Reference
RT
Reference Area %
Limits
RT Diff
Limit Q
SG-5 (20I0754-05 )Lab File ID: G2026030.D Analyzed: 09/17/20 05:35
Bromochloromethane (1)630734 8.521 570266 8.515 60 - 140111 0.0060 +/-0.50
1,4-Difluorobenzene (1)1355549 10.295 1224310 10.295 60 - 140111 0.0000 +/-0.50
Chlorobenzene-d5 (1)1234442 14.673 1118907 14.673 60 - 140110 0.0000 +/-0.50
SG-6 (20I0754-06 )Lab File ID: G2026031.D Analyzed: 09/17/20 06:15
Bromochloromethane (1)636468 8.521 570266 8.515 60 - 140112 0.0060 +/-0.50
1,4-Difluorobenzene (1)1390725 10.295 1224310 10.295 60 - 140114 0.0000 +/-0.50
Chlorobenzene-d5 (1)1269394 14.673 1118907 14.673 60 - 140113 0.0000 +/-0.50
DUP-1 (20I0754-07 )Lab File ID: G2026032.D Analyzed: 09/17/20 06:56
Bromochloromethane (1)617889 8.521 570266 8.515 60 - 140108 0.0060 +/-0.50
1,4-Difluorobenzene (1)1406438 10.295 1224310 10.295 60 - 140115 0.0000 +/-0.50
Chlorobenzene-d5 (1)1295601 14.673 1118907 14.673 60 - 140116 0.0000 +/-0.50
Page 24 of 31
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
CONTINUING CALIBRATION CHECK
EPA TO-15
S052464-CCV1
COMPOUND TYPE CCV MIN (#)CCV LIMIT (#)CCV ICAL
CONC. (ppbv)% DIFF / DRIFTRESPONSE FACTOR
STD
0.8765061A -16.8 304.16 1.0535555.00Acetone
0.8787604A 5.6 304.98 0.83181955.00Benzene
1.116365A 14.6 305.73 0.97445395.00Benzyl chloride
0.6676113A -0.7 304.96 0.67229875.00Bromodichloromethane
0.5163839A 9.9 305.50 0.46977585.00Bromoform
0.3865003A -20.6 303.97 0.48682065.00Bromomethane
0.4046533A -26.4 303.68 0.55015895.001,3-Butadiene
1.464574A -9.5 304.53 1.6174615.002-Butanone (MEK)
1.66436A -14.2 304.29 1.9397035.00Carbon Disulfide
0.5734077A 2.6 305.13 0.55861215.00Carbon Tetrachloride
0.8046295A 0.1 305.00 0.80381515.00Chlorobenzene
0.2371777A -27.7 303.62 0.32796055.00Chloroethane
1.275065A -17.7 304.11 1.5500255.00Chloroform
0.5123279A -24.8 303.76 0.68101255.00Chloromethane
0.356971A -10.0 304.50 0.39642335.00Cyclohexane
0.62652A 8.6 305.43 0.5766445.00Dibromochloromethane
0.5540292A -5.0 304.75 0.58312035.001,2-Dibromoethane (EDB)
0.6936055A 12.7 305.63 0.615545.001,2-Dichlorobenzene
0.7464456A 11.5 305.57 0.66956715.001,3-Dichlorobenzene
0.748662A 8.8 305.44 0.68784585.001,4-Dichlorobenzene
1.33504A -12.0 304.40 1.517275.00Dichlorodifluoromethane (Freon 12)
1.17395A -12.6 304.37 1.3431085.001,1-Dichloroethane
0.8905795A -17.3 304.13 1.0775185.001,2-Dichloroethane
1.034369A -12.7 304.37 1.1843885.001,1-Dichloroethylene
0.8914044A -17.9 304.10 1.0858845.00cis-1,2-Dichloroethylene
0.9237935A -13.0 304.35 1.0613685.00trans-1,2-Dichloroethylene
0.3561516A -1.3 304.94 0.36076115.001,2-Dichloropropane
0.5555351A -3.4 304.83 0.57525965.00cis-1,3-Dichloropropene
0.479408A -1.4 304.93 0.48643195.00trans-1,3-Dichloropropene
1.177923A -16.4 304.18 1.4094765.001,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
0.1707385A 3.7 305.19 0.16460655.001,4-Dioxane
0.1336667A -23.1 303.84 0.17380835.00Ethanol
0.2240554A -14.3 304.28 0.26152255.00Ethyl Acetate
1.441814A 0.2 305.01 1.4395725.00Ethylbenzene
1.51243A 9.3 305.46 1.3840565.004-Ethyltoluene
0.3070151A 0.7 305.04 0.30477745.00Heptane
0.3722533A 7.5 305.38 0.34623555.00Hexachlorobutadiene
0.8665205A -7.5 304.63 1.0641455.00Hexane
Page 25 of 31
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
CONTINUING CALIBRATION CHECK
EPA TO-15
S052464-CCV1
COMPOUND TYPE CCV MIN (#)CCV LIMIT (#)CCV ICAL
CONC. (ppbv)% DIFF / DRIFTRESPONSE FACTOR
STD
0.8518542A 9.1 305.45 0.78115325.002-Hexanone (MBK)
0.9800423A -14.7 304.26 1.1489995.00Isopropanol
1.690922A -13.5 304.33 1.9543585.00Methyl tert-Butyl Ether (MTBE)
0.7961758A -22.1 303.90 1.0220025.00Methylene Chloride
0.8607742A 11.7 305.58 0.77094945.004-Methyl-2-pentanone (MIBK)
1.254418A 15.5 305.78 1.0858335.00Naphthalene
0.6027278A -11.8 304.41 0.68310695.00Propene
0.8140873A 2.3 305.12 0.79570255.00Styrene
0.8577971A 3.2 305.16 0.8310555.001,1,2,2-Tetrachloroethane
0.3992525A -7.2 304.64 0.43008225.00Tetrachloroethylene
0.2694434A -12.3 304.38 0.30727435.00Tetrahydrofuran
1.08149A -2.8 304.86 1.1130365.00Toluene
0.4657417A 21.1 306.06 0.38444265.001,2,4-Trichlorobenzene
0.5811574A -2.9 304.86 0.59853515.001,1,1-Trichloroethane
0.3695893A -6.1 304.69 0.39377395.001,1,2-Trichloroethane
0.3644044A -7.6 304.62 0.39422495.00Trichloroethylene
1.095795A -10.0 304.50 1.217035.00Trichlorofluoromethane (Freon 11)
1.099504A -13.6 304.32 1.2727175.001,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
1.245899A 10.1 305.51 1.1311435.001,2,4-Trimethylbenzene
1.267047A 5.8 305.29 1.1975275.001,3,5-Trimethylbenzene
1.855505A -23.7 303.82 2.431065.00Vinyl Acetate
0.513136A -21.6 303.92 0.65415115.00Vinyl Chloride
1.119789A 2.6 3010.3 1.09128110.0m&p-Xylene
1.148751A 1.8 305.09 1.1280795.00o-Xylene
* Values outside of QC limits
# Column to be used to flag Response Factor and %Diff/Drift values with an asterisk
Page 26 of 31
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
CertificationsAnalyte
CERTIFICATIONS
Certified Analyses included in this Report
EPA TO-15 in Air
AIHA,NY,ME,NHAcetone
AIHA,FL,NJ,NY,ME,NH,VABenzene
AIHA,FL,NJ,NY,ME,NH,VABenzyl chloride
AIHA,NJ,NY,ME,NH,VABromodichloromethane
AIHA,NJ,NY,ME,NH,VABromoform
AIHA,FL,NJ,NY,ME,NHBromomethane
AIHA,NJ,NY,ME,NH,VA1,3-Butadiene
AIHA,FL,NJ,NY,ME,NH,VA2-Butanone (MEK)
AIHA,NJ,NY,ME,NH,VACarbon Disulfide
AIHA,FL,NJ,NY,ME,NH,VACarbon Tetrachloride
AIHA,FL,NJ,NY,ME,NH,VAChlorobenzene
AIHA,FL,NJ,NY,ME,NH,VAChloroethane
AIHA,FL,NJ,NY,ME,NH,VAChloroform
AIHA,FL,NJ,NY,ME,NH,VAChloromethane
AIHA,NJ,NY,ME,NH,VACyclohexane
AIHA,NY,ME,NHDibromochloromethane
AIHA,NJ,NY,ME,NH1,2-Dibromoethane (EDB)
AIHA,FL,NJ,NY,ME,NH,VA1,2-Dichlorobenzene
AIHA,NJ,NY,ME,NH1,3-Dichlorobenzene
AIHA,FL,NJ,NY,ME,NH,VA1,4-Dichlorobenzene
AIHA,NY,ME,NHDichlorodifluoromethane (Freon 12)
AIHA,FL,NJ,NY,ME,NH,VA1,1-Dichloroethane
AIHA,FL,NJ,NY,ME,NH,VA1,2-Dichloroethane
AIHA,FL,NJ,NY,ME,NH,VA1,1-Dichloroethylene
AIHA,FL,NY,ME,NH,VAcis-1,2-Dichloroethylene
AIHA,NJ,NY,ME,NH,VAtrans-1,2-Dichloroethylene
AIHA,FL,NJ,NY,ME,NH,VA1,2-Dichloropropane
AIHA,FL,NJ,NY,ME,NH,VAcis-1,3-Dichloropropene
AIHA,NY,ME,NHtrans-1,3-Dichloropropene
AIHA,NJ,NY,ME,NH,VA1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
AIHA,NJ,NY,ME,NH,VA1,4-Dioxane
AIHAEthanol
AIHAEthyl Acetate
AIHA,FL,NJ,NY,ME,NH,VAEthylbenzene
AIHA,NJ4-Ethyltoluene
AIHA,NJ,NY,ME,NH,VAHeptane
AIHA,NJ,NY,ME,NH,VAHexachlorobutadiene
AIHA,FL,NJ,NY,ME,NH,VAHexane
AIHA2-Hexanone (MBK)
AIHA,NY,ME,NHIsopropanol
AIHA,FL,NJ,NY,ME,NH,VAMethyl tert-Butyl Ether (MTBE)
AIHA,FL,NJ,NY,ME,NH,VAMethylene Chloride
AIHA,FL,NJ,NY,ME,NH4-Methyl-2-pentanone (MIBK)
NY,ME,NHNaphthalene
AIHAPropene
AIHA,FL,NJ,NY,ME,NH,VAStyrene
AIHA,FL,NJ,NY,ME,NH,VA1,1,2,2-Tetrachloroethane
Page 27 of 31
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
CertificationsAnalyte
CERTIFICATIONS
Certified Analyses included in this Report
EPA TO-15 in Air
AIHA,FL,NJ,NY,ME,NH,VATetrachloroethylene
AIHATetrahydrofuran
AIHA,FL,NJ,NY,ME,NH,VAToluene
AIHA,NJ,NY,ME,NH,VA1,2,4-Trichlorobenzene
AIHA,FL,NJ,NY,ME,NH,VA1,1,1-Trichloroethane
AIHA,FL,NJ,NY,ME,NH,VA1,1,2-Trichloroethane
AIHA,FL,NJ,NY,ME,NH,VATrichloroethylene
AIHA,NY,ME,NHTrichlorofluoromethane (Freon 11)
AIHA,NJ,NY,ME,NH,VA1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
AIHA,NJ,NY,ME,NH1,2,4-Trimethylbenzene
AIHA,NJ,NY,ME,NH1,3,5-Trimethylbenzene
AIHA,FL,NJ,NY,ME,NH,VAVinyl Acetate
AIHA,FL,NJ,NY,ME,NH,VAVinyl Chloride
AIHA,FL,NJ,NY,ME,NH,VAm&p-Xylene
AIHA,FL,NJ,NY,ME,NH,VAo-Xylene
The CON-TEST Environmental Laboratory operates under the following certifications and accreditations:
Code Description Number Expires
100033AIHA-LAP, LLC - ISO17025:2017AIHA 03/1/2022
M-MA100Massachusetts DEPMA 06/30/2021
PH-0567Connecticut Department of Publilc HealthCT 09/30/2021
10899 NELAPNew York State Department of HealthNY 04/1/2021
2516 NELAPNew Hampshire Environmental LabNH-S 02/5/2021
LAO00112Rhode Island Department of HealthRI 12/30/2020
652North Carolina Div. of Water QualityNC 12/31/2020
MA007 NELAPNew Jersey DEPNJ 06/30/2021
E871027 NELAPFlorida Department of HealthFL 06/30/2021
LL015036Vermont Department of Health Lead LaboratoryVT 07/30/2021
2011028State of MaineME 06/9/2021
460217Commonwealth of VirginiaVA 12/14/2020
2557 NELAPNew Hampshire Environmental LabNH-P 09/6/2021
VT-255716Vermont Department of Health Drinking WaterVT-DW 06/12/2021
25703North Carolina Department of HealthNC-DW 07/31/2021
68-05812Commonwealth of Pennsylvania DEPPA 06/30/2021
9100Dept. of Env, Great Lakes, and EnergyMI 10/1/2020
Page 28 of 31
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Page 31 of 31
Hart & Hickman -
Raleigh
3921 Sunset Ridge Road, Suite 301
Raleigh, NC 27607

Cameron Village Condominiums
Client Project # CAM-011

Analytical Report
(0920-079)

EPA Method TO-15 Analysis
Client Specified TO-15 Target Compound List

Enthalpy Analytical, LLC
Phone: (919) 850 - 4392 / Fax: (919) 850 - 9012 / www.enthalpy.com
800-1 Capitola Drive Durham, NC 27713

Results
EA Job # 0920-079 Page 3 of 25
Quantitation Report Enthalpy Analytical, LLC
Sample Name : SG-1S
Sample Info : 0920-079; 500mL load; Can #00161
Data File : T20002736.D
Dilution : 1
Pressurization Factor : 2.594
Acquisition Date : 2020-09-30 23:29:37
Instrument Method : TO15-SCN2.M
Matrix : AIR
Target Compound
Concentration
(PPBV)
RL
(PPBV)
MDL
(PPBV)
Concentration
(ug/m3)
RL
(ug/m3)
MDL
(ug/m3)Flag *
Propylene 2.12 0.0994 0.0908 3.65 0.171 0.156
Freon 12 (CCl2F2)0.404 0.0997 0.0908 2.00 0.493 0.449
Freon 114 (C2Cl2F4)ND 0.103 0.0908 ND 0.722 0.635
Chloromethane 0.105 0.101 0.0908 0.218 0.208 0.187
Chloroethene (Vinyl chloride)ND 0.103 0.0908 ND 0.264 0.232
1,3-Butadiene 0.138 0.100 0.0908 0.306 0.222 0.201
Bromomethane ND 0.102 0.0908 ND 0.395 0.353
Chloroethane ND 0.104 0.0908 ND 0.274 0.240
Freon 11 (CCl3F)0.632 0.107 0.0908 3.55 0.602 0.510
Ethanol 45.6 0.104 0.104 85.8 0.196 0.196
Freon 113 (C2Cl3F3)ND 0.103 0.0908 ND 0.788 0.696
1,1-Dichloroethene ND 0.103 0.0908 ND 0.409 0.360
Acetone 9.93 0.102 0.0908 23.6 0.243 0.216 m
Carbon disulfide 0.356 0.103 0.0908 1.11 0.321 0.283
Isopropyl alcohol 1.60 0.103 0.0908 3.92 0.252 0.223
Methylene chloride 0.186 0.104 0.0908 0.645 0.361 0.315 m
trans-1,2-Dichloroethene ND 0.105 0.0908 ND 0.416 0.360
Methyl tert-butyl ether ND 0.105 0.0908 ND 0.378 0.327
Hexane 0.584 0.104 0.0908 2.06 0.368 0.320
1,1-Dichloroethane ND 0.101 0.0908 ND 0.409 0.367
Vinyl acetate ND 0.104 0.0908 ND 0.366 0.320
cis-1,2-Dichloroethene ND 0.103 0.0908 ND 0.409 0.360
Methyl ethyl ketone (2-Butanone)3.02 0.105 0.0908 8.90 0.311 0.268
Ethyl acetate 0.549 0.104 0.0908 1.98 0.374 0.327
Chloroform 3.82 0.104 0.0908 18.6 0.509 0.443
Tetrahydrofuran 3.82 0.104 0.0908 11.3 0.305 0.268
1,1,1-Trichloroethane ND 0.102 0.0908 ND 0.558 0.495
Cyclohexane 1.68 0.104 0.0908 5.79 0.359 0.313 m
Carbon tetrachloride ND 0.104 0.0908 ND 0.653 0.571
Benzene 1.34 0.102 0.0908 4.28 0.326 0.290
1,2-Dichloroethane ND 0.105 0.0908 ND 0.424 0.367
Heptane 1.53 0.103 0.0908 6.26 0.423 0.372
Trichloroethene 0.305 0.104 0.0908 1.64 0.557 0.488
1,2-Dichloropropane ND 0.102 0.0908 ND 0.469 0.420
1,4-Dioxane 0.100 0.103 0.0908 0.360 0.373 0.327 J
Bromodichloromethane ND 0.103 0.0908 ND 0.688 0.608
cis-1,3-Dichloropropene ND 0.101 0.0908 ND 0.460 0.412
Methyl isobutyl ketone 4.30 0.106 0.0908 17.6 0.434 0.372 m
Toluene 23.4 0.104 0.0908 88.1 0.394 0.342
trans-1,3-Dichloropropene ND 0.105 0.0908 ND 0.476 0.412
1,1,2-Trichloroethane ND 0.104 0.0908 ND 0.566 0.495
Tetrachloroethene 3.94 0.104 0.0908 26.7 0.704 0.616
2-Hexanone (Methyl butyl ketone)0.186 0.104 0.0908 0.761 0.426 0.372 m
Dibromochloromethane ND 0.102 0.0908 ND 0.872 0.773
1,2-Dibromoethane ND 0.105 0.0908 ND 0.804 0.698
Chlorobenzene 0.118 0.106 0.0908 0.544 0.490 0.418
Ethylbenzene 8.04 0.102 0.0908 34.9 0.441 0.394
m-/p-Xylenes 37.3 0.105 0.0908 162 0.455 0.394
o-Xylene 11.5 0.103 0.0908 50.0 0.446 0.394
Styrene 1.75 0.101 0.0908 7.46 0.429 0.387
Bromoform ND 0.104 0.0908 ND 1.07 0.938
1,1,2,2-Tetrachloroethane ND 0.104 0.0908 ND 0.712 0.623
4-Ethyltoluene 6.13 0.104 0.0908 30.1 0.513 0.446
1,3,5-Trimethylbenzene 14.1 0.104 0.0908 69.2 0.512 0.446
1,2,4-Trimethylbenzene 29.6 0.103 0.0908 146 0.506 0.446
1,3-Dichlorobenzene 0.220 0.106 0.0908 1.32 0.634 0.546 m
TO15_Quant_Ambient - R1
EA Job # 0920-079 Page 4 of 25
Quantitation Report Enthalpy Analytical, LLC
Sample Name : SG-1S
Sample Info : 0920-079; 500mL load; Can #00161
Data File : T20002736.D
Dilution : 1
Pressurization Factor : 2.594
Acquisition Date : 2020-09-30 23:29:37
Instrument Method : TO15-SCN2.M
Matrix : AIR
Target Compound
Concentration
(PPBV)
RL
(PPBV)
MDL
(PPBV)
Concentration
(ug/m3)
RL
(ug/m3)
MDL
(ug/m3)Flag *
1,4-Dichlorobenzene ND 0.104 0.0908 ND 0.627 0.546
Benzyl chloride ND 0.103 0.0908 ND 0.535 0.470
1,2-Dichlorobenzene ND 0.105 0.0908 ND 0.633 0.546
1,2,4-Trichlorobenzene ND 0.105 0.0908 ND 0.780 0.674
Hexachlorobutadiene ND 0.105 0.0908 ND 1.12 0.968
Naphthalene 0.889 0.108 0.0908 4.66 0.567 0.476
Internal Standards Response
Retention Time
(min)
Concentration
(PPBV)Flag *
Bromochloromethane (IS)440,311 12.38 5.01 PASS
1,4-Difluorobenzene (IS)1,598,458 14.10 5.03 PASS
Chlorobenzene-d5 (IS)1,356,026 18.37 4.84 PASS
(ND) = Not Detected
* (J) = Below Calibration Range, (E) = Above Calibration Range, (m) = Manual Integration
IS Acceptance Criteria: RT +/- 20 sec, Response +/- 40%
TO15_Quant_Ambient - R1
EA Job # 0920-079 Page 5 of 25

Lab QC
EA Job # 0920-079 Page 6 of 25
Quantitation Report Enthalpy Analytical, LLC
Sample Name : Humid Blank #0703
Sample Info : 500mL load; Can #0702
Data File : T20002728.D
Dilution : 1
Pressurization Factor : 1.000
Acquisition Date : 2020-09-30 17:05:29
Instrument Method : TO15-SCN2.M
Matrix : AIR
Target Compound
Concentration
(PPBV)
RL
(PPBV)
MDL
(PPBV)
Concentration
(ug/m3)
RL
(ug/m3)
MDL
(ug/m3)Flag *
Propylene ND 0.0383 0.0350 ND 0.0660 0.0602
Freon 12 (CCl2F2)ND 0.0384 0.0350 ND 0.190 0.173
Freon 114 (C2Cl2F4)ND 0.0398 0.0350 ND 0.279 0.245
Chloromethane ND 0.0389 0.0350 ND 0.0803 0.0723
Chloroethene (Vinyl chloride)ND 0.0399 0.0350 ND 0.102 0.0895
1,3-Butadiene ND 0.0386 0.0350 ND 0.0855 0.0774
Bromomethane ND 0.0392 0.0350 ND 0.152 0.136
Chloroethane ND 0.0401 0.0350 ND 0.106 0.0924
Freon 11 (CCl3F)ND 0.0413 0.0350 ND 0.232 0.197
Ethanol 0.0688 0.0400 0.0400 0.130 0.0754 0.0754 m
Freon 113 (C2Cl3F3)ND 0.0396 0.0350 ND 0.304 0.268
1,1-Dichloroethene ND 0.0398 0.0350 ND 0.158 0.139
Acetone 0.0452 0.0395 0.0350 0.107 0.0938 0.0831
Carbon disulfide ND 0.0397 0.0350 ND 0.124 0.109
Isopropyl alcohol ND 0.0396 0.0350 ND 0.0973 0.0860
Methylene chloride 0.0364 0.0401 0.0350 0.126 0.139 0.122 m J
trans-1,2-Dichloroethene ND 0.0404 0.0350 ND 0.160 0.139
Methyl tert-butyl ether ND 0.0404 0.0350 ND 0.146 0.126
Hexane ND 0.0403 0.0350 ND 0.142 0.123
1,1-Dichloroethane ND 0.0390 0.0350 ND 0.158 0.142
Vinyl acetate ND 0.0401 0.0350 ND 0.141 0.123
cis-1,2-Dichloroethene ND 0.0398 0.0350 ND 0.158 0.139
Methyl ethyl ketone (2-Butanone)ND 0.0406 0.0350 ND 0.120 0.103
Ethyl acetate ND 0.0400 0.0350 ND 0.144 0.126
Chloroform ND 0.0402 0.0350 ND 0.196 0.171
Tetrahydrofuran ND 0.0399 0.0350 ND 0.118 0.103
1,1,1-Trichloroethane ND 0.0394 0.0350 ND 0.215 0.191
Cyclohexane ND 0.0402 0.0350 ND 0.138 0.120
Carbon tetrachloride ND 0.0400 0.0350 ND 0.252 0.220
Benzene ND 0.0393 0.0350 ND 0.126 0.112
1,2-Dichloroethane ND 0.0404 0.0350 ND 0.163 0.142
Heptane ND 0.0398 0.0350 ND 0.163 0.143
Trichloroethene ND 0.0400 0.0350 ND 0.215 0.188
1,2-Dichloropropane ND 0.0392 0.0350 ND 0.181 0.162
1,4-Dioxane ND 0.0399 0.0350 ND 0.144 0.126
Bromodichloromethane ND 0.0396 0.0350 ND 0.265 0.235
cis-1,3-Dichloropropene ND 0.0390 0.0350 ND 0.177 0.159
Methyl isobutyl ketone ND 0.0408 0.0350 ND 0.167 0.143
Toluene ND 0.0403 0.0350 ND 0.152 0.132
trans-1,3-Dichloropropene ND 0.0404 0.0350 ND 0.184 0.159
1,1,2-Trichloroethane ND 0.0400 0.0350 ND 0.218 0.191
Tetrachloroethene ND 0.0400 0.0350 ND 0.271 0.237
2-Hexanone (Methyl butyl ketone)ND 0.0401 0.0350 ND 0.164 0.143
Dibromochloromethane ND 0.0395 0.0350 ND 0.336 0.298
1,2-Dibromoethane ND 0.0403 0.0350 ND 0.310 0.269
Chlorobenzene ND 0.0410 0.0350 ND 0.189 0.161
Ethylbenzene ND 0.0392 0.0350 ND 0.170 0.152
m-/p-Xylenes ND 0.0404 0.0350 ND 0.175 0.152
o-Xylene ND 0.0396 0.0350 ND 0.172 0.152
Styrene ND 0.0388 0.0350 ND 0.165 0.149
Bromoform ND 0.0400 0.0350 ND 0.413 0.362
1,1,2,2-Tetrachloroethane ND 0.0400 0.0350 ND 0.274 0.240
4-Ethyltoluene ND 0.0402 0.0350 ND 0.198 0.172
1,3,5-Trimethylbenzene ND 0.0402 0.0350 ND 0.197 0.172
1,2,4-Trimethylbenzene ND 0.0397 0.0350 ND 0.195 0.172
1,3-Dichlorobenzene ND 0.0407 0.0350 ND 0.245 0.210
TO15_Quant_Ambient - v2
EA Job # 0920-079 Page 7 of 25
Quantitation Report Enthalpy Analytical, LLC
Sample Name : Humid Blank #0703
Sample Info : 500mL load; Can #0702
Data File : T20002728.D
Dilution : 1
Pressurization Factor : 1.000
Acquisition Date : 2020-09-30 17:05:29
Instrument Method : TO15-SCN2.M
Matrix : AIR
Target Compound
Concentration
(PPBV)
RL
(PPBV)
MDL
(PPBV)
Concentration
(ug/m3)
RL
(ug/m3)
MDL
(ug/m3)Flag *
1,4-Dichlorobenzene ND 0.0402 0.0350 ND 0.242 0.210
Benzyl chloride ND 0.0398 0.0350 ND 0.206 0.181
1,2-Dichlorobenzene ND 0.0406 0.0350 ND 0.244 0.210
1,2,4-Trichlorobenzene ND 0.0405 0.0350 ND 0.301 0.260
Hexachlorobutadiene ND 0.0406 0.0350 ND 0.433 0.373
Naphthalene 0.0385 0.0417 0.0350 0.202 0.219 0.183 J
Internal Standards Response
Retention Time
(min)
Concentration
(PPBV)Flag *
Bromochloromethane (IS)509,422 12.37 5.01 PASS
1,4-Difluorobenzene (IS)1,863,661 14.10 5.03 PASS
Chlorobenzene-d5 (IS)1,542,078 18.37 4.84 PASS
(ND) = Not Detected
* (J) = Below Calibration Range, (E) = Above Calibration Range, (m) = Manual Integration
IS Acceptance Criteria: RT +/- 20 sec, Response +/- 40%
TO15_Quant_Ambient - v2
EA Job # 0920-079 Page 8 of 25
QC Summary Report Enthalpy Analytical, LLC
Sample Name : 5ppbv TO15 LCS
Sample Info : 125mL load; Can #2075; GCMSPrepPg946
Data File : T20002725.D
Dilution : 1
Pressurization Factor : 1.000
Acquisition Date : 2020-09-30 14:35:27
Instrument Method : TO15-SCN2.M
Matrix : AIR
Target Compound Response
Concentration
(PPBV)
Tag Value
(PPBV) % Recovery Flag
Propylene 502,352 4.57 4.83 94.6 PASS
Freon 12 (CCl2F2)1,034,986 4.57 4.90 93.3 PASS
Freon 114 (C2Cl2F4)1,100,889 4.70 5.01 93.7 PASS
Chloromethane 540,364 4.72 4.95 95.5 PASS
Chloroethene (Vinyl chloride)445,930 5.03 5.00 100.7 PASS
1,3-Butadiene 505,459 4.98 4.87 102.4 PASS
Bromomethane 373,375 5.17 4.91 105.5 PASS
Chloroethane 205,089 4.77 5.08 94.0 PASS
Freon 11 (CCl3F)1,153,655 4.88 5.28 92.5 PASS
Ethanol 244,996 4.42 4.96 89.3 PASS
1,1-Dichloroethene 760,125 4.55 5.03 90.4 PASS
Freon 113 (C2Cl3F3)724,996 4.88 5.08 96.1 PASS
Acetone 916,361 4.20 5.01 83.8 PASS
Isopropyl alcohol 1,050,113 4.83 4.99 96.9 PASS
Carbon disulfide 1,108,771 4.47 4.99 89.7 PASS
Methylene chloride 736,175 4.04 5.12 78.8 PASS
Methyl tert-butyl ether 1,038,958 4.50 5.14 87.5 PASS
trans-1,2-Dichloroethene 671,580 4.57 5.10 89.6 PASS
Hexane 736,758 4.72 5.08 92.9 PASS
1,1-Dichloroethane 778,279 4.39 4.97 88.5 PASS
Vinyl acetate 1,554,434 5.29 5.12 103.5 PASS
Methyl ethyl ketone (2-Butanone)191,019 4.65 5.17 89.9 PASS
cis-1,2-Dichloroethene 778,983 4.55 5.05 90.1 PASS
Ethyl acetate 215,826 4.86 4.99 97.4 PASS
Tetrahydrofuran 177,330 4.58 5.06 90.6 PASS
Chloroform 850,181 4.64 5.02 92.6 PASS
1,1,1-Trichloroethane 863,442 4.66 5.05 92.3 PASS
Cyclohexane 781,104 4.76 5.13 93.0 PASS
Carbon tetrachloride 969,370 4.94 5.04 98.1 PASS
Benzene 1,149,730 4.91 5.03 97.6 PASS
1,2-Dichloroethane 622,255 4.95 5.15 96.2 PASS
Heptane 476,707 5.00 5.07 98.7 PASS
Trichloroethene 589,208 5.57 5.06 110.3 PASS
1,2-Dichloropropane 486,501 4.72 5.04 93.7 PASS
1,4-Dioxane 271,826 5.29 5.02 105.5 PASS
Bromodichloromethane 890,473 5.10 5.05 101.0 PASS
cis-1,3-Dichloropropene 660,007 4.84 4.97 97.6 PASS
Methyl isobutyl ketone 1,563,744 5.57 5.20 107.1 PASS
Toluene 1,387,899 5.13 5.09 100.9 PASS
trans-1,3-Dichloropropene 680,078 4.78 5.16 92.7 PASS
1,1,2-Trichloroethane 497,062 5.43 5.09 106.8 PASS
Tetrachloroethene 767,196 5.32 5.12 103.9 PASS
QC_SUM-v2
EA Job # 0920-079 Page 9 of 25
QC Summary Report Enthalpy Analytical, LLC
Sample Name : 5ppbv TO15 LCS
Sample Info : 125mL load; Can #2075; GCMSPrepPg946
Data File : T20002725.D
Dilution : 1
Pressurization Factor : 1.000
Acquisition Date : 2020-09-30 14:35:27
Instrument Method : TO15-SCN2.M
Matrix : AIR
Target Compound Response
Concentration
(PPBV)
Tag Value
(PPBV) % Recovery Flag
2-Hexanone (Methyl butyl ketone)1,509,683 5.42 5.12 106.0 PASS
Dibromochloromethane 1,012,530 5.78 5.04 114.8 PASS
1,2-Dibromoethane 845,894 5.43 5.12 106.2 PASS
Chlorobenzene 1,125,456 5.38 5.15 104.4 PASS
Ethylbenzene 1,693,008 4.90 4.97 98.6 PASS
m-/p-Xylenes 1,405,159 5.12 5.07 101.0 PASS
o-Xylene 1,378,165 4.98 5.01 99.3 PASS
Styrene 1,082,727 5.22 4.90 106.6 PASS
Bromoform 1,001,025 6.21 5.02 123.9 PASS
1,1,2,2-Tetrachloroethane 1,127,312 5.09 5.06 100.8 PASS
4-Ethyltoluene 2,098,171 5.38 5.09 105.8 PASS
1,3,5-Trimethylbenzene 1,689,882 5.13 5.07 101.2 PASS
1,2,4-Trimethylbenzene 1,718,597 5.17 5.01 103.2 PASS
1,3-Dichlorobenzene 1,277,049 5.46 5.08 107.4 PASS
1,4-Dichlorobenzene 1,267,430 5.21 5.03 103.6 PASS
Benzyl chloride 1,662,880 5.51 5.03 109.5 PASS
1,2-Dichlorobenzene 1,262,726 5.44 5.07 107.3 PASS
1,2,4-Trichlorobenzene 1,170,520 5.53 4.98 111.0 PASS
Hexachlorobutadiene 988,838 5.47 4.94 110.7 PASS
Naphthalene 2,621,203 6.01 5.04 119.5 PASS
QC_SUM-v2
EA Job # 0920-079 Page 10 of 25
Quantitation Report Enthalpy Analytical, LLC
Sample Name : 5ppbv TO15 LCS
Sample Info : 125mL load; Can #2075; GCMSPrepPg946
Data File : T20002725.D
Dilution : 1
Pressurization Factor : 1.000
Acquisition Date : 2020-09-30 14:35:27
Instrument Method : TO15-SCN2.M
Matrix : AIR
Target Compound
Concentration
(PPBV)
RL
(PPBV)
MDL
(PPBV)
Concentration
(ug/m3)
RL
(ug/m3)
MDL
(ug/m3)Flag *
Propylene 4.57 0.0383 0.0350 7.86 0.0660 0.0602
Freon 12 (CCl2F2)4.57 0.0384 0.0350 22.6 0.190 0.173
Freon 114 (C2Cl2F4)4.70 0.0398 0.0350 32.8 0.279 0.245
Chloromethane 4.72 0.0389 0.0350 9.76 0.0803 0.0723
Chloroethene (Vinyl chloride)5.03 0.0399 0.0350 12.9 0.102 0.0895
1,3-Butadiene 4.98 0.0386 0.0350 11.0 0.0855 0.0774
Bromomethane 5.17 0.0392 0.0350 20.1 0.152 0.136
Chloroethane 4.77 0.0401 0.0350 12.6 0.106 0.0924
Freon 11 (CCl3F)4.88 0.0413 0.0350 27.4 0.232 0.197
Ethanol 4.42 0.0400 0.0400 8.34 0.0754 0.0754
Freon 113 (C2Cl3F3)4.88 0.0396 0.0350 37.4 0.304 0.268
1,1-Dichloroethene 4.55 0.0398 0.0350 18.0 0.158 0.139
Acetone 4.20 0.0395 0.0350 9.97 0.0938 0.0831
Carbon disulfide 4.47 0.0397 0.0350 13.9 0.124 0.109
Isopropyl alcohol 4.83 0.0396 0.0350 11.9 0.0973 0.0860
Methylene chloride 4.04 0.0401 0.0350 14.0 0.139 0.122 m
trans-1,2-Dichloroethene 4.57 0.0404 0.0350 18.1 0.160 0.139
Methyl tert-butyl ether 4.50 0.0404 0.0350 16.2 0.146 0.126
Hexane 4.72 0.0403 0.0350 16.6 0.142 0.123
1,1-Dichloroethane 4.39 0.0390 0.0350 17.8 0.158 0.142
Vinyl acetate 5.29 0.0401 0.0350 18.6 0.141 0.123 m
cis-1,2-Dichloroethene 4.55 0.0398 0.0350 18.1 0.158 0.139 m
Methyl ethyl ketone (2-Butanone)4.65 0.0406 0.0350 13.7 0.120 0.103
Ethyl acetate 4.86 0.0400 0.0350 17.5 0.144 0.126
Chloroform 4.64 0.0402 0.0350 22.7 0.196 0.171
Tetrahydrofuran 4.58 0.0399 0.0350 13.5 0.118 0.103
1,1,1-Trichloroethane 4.66 0.0394 0.0350 25.4 0.215 0.191
Cyclohexane 4.76 0.0402 0.0350 16.4 0.138 0.120
Carbon tetrachloride 4.94 0.0400 0.0350 31.1 0.252 0.220
Benzene 4.91 0.0393 0.0350 15.7 0.126 0.112
1,2-Dichloroethane 4.95 0.0404 0.0350 20.0 0.163 0.142
Heptane 5.00 0.0398 0.0350 20.5 0.163 0.143
Trichloroethene 5.57 0.0400 0.0350 30.0 0.215 0.188
1,2-Dichloropropane 4.72 0.0392 0.0350 21.8 0.181 0.162
1,4-Dioxane 5.29 0.0399 0.0350 19.1 0.144 0.126 m
Bromodichloromethane 5.10 0.0396 0.0350 34.2 0.265 0.235
cis-1,3-Dichloropropene 4.84 0.0390 0.0350 22.0 0.177 0.159
Methyl isobutyl ketone 5.57 0.0408 0.0350 22.8 0.167 0.143
Toluene 5.13 0.0403 0.0350 19.3 0.152 0.132
trans-1,3-Dichloropropene 4.78 0.0404 0.0350 21.7 0.184 0.159
1,1,2-Trichloroethane 5.43 0.0400 0.0350 29.6 0.218 0.191
Tetrachloroethene 5.32 0.0400 0.0350 36.1 0.271 0.237
2-Hexanone (Methyl butyl ketone)5.42 0.0401 0.0350 22.2 0.164 0.143
Dibromochloromethane 5.78 0.0395 0.0350 49.3 0.336 0.298
1,2-Dibromoethane 5.43 0.0403 0.0350 41.7 0.310 0.269
Chlorobenzene 5.38 0.0410 0.0350 24.8 0.189 0.161
Ethylbenzene 4.90 0.0392 0.0350 21.3 0.170 0.152
m-/p-Xylenes 5.12 0.0404 0.0350 22.2 0.175 0.152
o-Xylene 4.98 0.0396 0.0350 21.6 0.172 0.152
Styrene 5.22 0.0388 0.0350 22.3 0.165 0.149
Bromoform 6.21 0.0400 0.0350 64.2 0.413 0.362
1,1,2,2-Tetrachloroethane 5.09 0.0400 0.0350 35.0 0.274 0.240
4-Ethyltoluene 5.38 0.0402 0.0350 26.4 0.198 0.172
1,3,5-Trimethylbenzene 5.13 0.0402 0.0350 25.2 0.197 0.172
1,2,4-Trimethylbenzene 5.17 0.0397 0.0350 25.4 0.195 0.172
1,3-Dichlorobenzene 5.46 0.0407 0.0350 32.8 0.245 0.210
TO15_Quant_Ambient - v2
EA Job # 0920-079 Page 11 of 25
Quantitation Report Enthalpy Analytical, LLC
Sample Name : 5ppbv TO15 LCS
Sample Info : 125mL load; Can #2075; GCMSPrepPg946
Data File : T20002725.D
Dilution : 1
Pressurization Factor : 1.000
Acquisition Date : 2020-09-30 14:35:27
Instrument Method : TO15-SCN2.M
Matrix : AIR
Target Compound
Concentration
(PPBV)
RL
(PPBV)
MDL
(PPBV)
Concentration
(ug/m3)
RL
(ug/m3)
MDL
(ug/m3)Flag *
1,4-Dichlorobenzene 5.21 0.0402 0.0350 31.3 0.242 0.210
Benzyl chloride 5.51 0.0398 0.0350 28.5 0.206 0.181
1,2-Dichlorobenzene 5.44 0.0406 0.0350 32.7 0.244 0.210
1,2,4-Trichlorobenzene 5.53 0.0405 0.0350 41.0 0.301 0.260
Hexachlorobutadiene 5.47 0.0406 0.0350 58.3 0.433 0.373
Naphthalene 6.01 0.0417 0.0350 31.5 0.219 0.183
Internal Standards Response
Retention Time
(min)
Concentration
(PPBV)Flag *
Bromochloromethane (IS)484,836 12.38 5.01 PASS
1,4-Difluorobenzene (IS)1,787,545 14.10 5.03 PASS
Chlorobenzene-d5 (IS)1,495,244 18.37 4.84 PASS
(ND) = Not Detected
* (J) = Below Calibration Range, (E) = Above Calibration Range, (m) = Manual Integration
IS Acceptance Criteria: RT +/- 20 sec, Response +/- 40%
TO15_Quant_Ambient - v2
EA Job # 0920-079 Page 12 of 25
QC Summary Report Enthalpy Analytical, LLC
Sample Name : 5ppbv TO15 LCS LD
Sample Info : 125mL load; Can #2075; GCMSPrepPg946
Data File : T20002726.D
Dilution : 1
Pressurization Factor : 1.000
Acquisition Date : 2020-09-30 15:18:46
Instrument Method : TO15-SCN2.M
Matrix : AIR
Target Compound Response
Concentration
(PPBV)
Tag Value
(PPBV) % Recovery Flag
Propylene 510,358 4.58 4.83 94.8 PASS
Freon 12 (CCl2F2)1,035,915 4.51 4.90 92.1 PASS
Freon 114 (C2Cl2F4)1,146,822 4.83 5.01 96.3 PASS
Chloromethane 550,376 4.75 4.95 96.0 PASS
Chloroethene (Vinyl chloride)448,349 4.99 5.00 99.9 PASS
1,3-Butadiene 502,398 4.88 4.87 100.4 PASS
Bromomethane 365,737 5.00 4.91 102.0 PASS
Chloroethane 202,652 4.65 5.08 91.6 PASS
Freon 11 (CCl3F)1,157,037 4.83 5.28 91.6 PASS
Ethanol 248,668 4.43 4.96 89.4 PASS
1,1-Dichloroethene 766,739 4.53 5.03 90.0 PASS
Freon 113 (C2Cl3F3)733,514 4.87 5.08 96.0 PASS
Acetone 924,155 4.18 5.01 83.4 PASS
Isopropyl alcohol 1,044,825 4.74 4.99 95.1 PASS
Carbon disulfide 1,130,012 4.50 4.99 90.2 PASS
Methylene chloride 739,278 4.00 5.12 78.1 PASS
Methyl tert-butyl ether 1,065,858 4.55 5.14 88.5 PASS
trans-1,2-Dichloroethene 686,552 4.61 5.10 90.4 PASS
Hexane 748,669 4.73 5.08 93.2 PASS
1,1-Dichloroethane 777,821 4.33 4.97 87.3 PASS
Vinyl acetate 1,570,727 5.28 5.12 103.2 PASS
Methyl ethyl ketone (2-Butanone)189,334 4.54 5.17 87.9 PASS
cis-1,2-Dichloroethene 789,658 4.55 5.05 90.2 PASS
Ethyl acetate 215,430 4.79 4.99 95.9 PASS
Tetrahydrofuran 182,450 4.65 5.06 92.0 PASS
Chloroform 846,157 4.56 5.02 90.9 PASS
1,1,1-Trichloroethane 860,359 4.58 5.05 90.7 PASS
Cyclohexane 789,848 4.75 5.13 92.7 PASS
Carbon tetrachloride 978,940 4.92 5.04 97.7 PASS
Benzene 1,149,825 4.90 5.03 97.4 PASS
1,2-Dichloroethane 619,777 4.92 5.15 95.5 PASS
Heptane 482,542 5.05 5.07 99.6 PASS
Trichloroethene 585,012 5.52 5.06 109.2 PASS
1,2-Dichloropropane 507,274 4.90 5.04 97.4 PASS
1,4-Dioxane 274,730 5.33 5.02 106.4 PASS
Bromodichloromethane 890,528 5.09 5.05 100.7 PASS
cis-1,3-Dichloropropene 661,028 4.84 4.97 97.5 PASS
Methyl isobutyl ketone 1,564,170 5.55 5.20 106.9 PASS
Toluene 1,390,195 5.08 5.09 99.8 PASS
trans-1,3-Dichloropropene 691,223 4.81 5.16 93.1 PASS
1,1,2-Trichloroethane 500,640 5.40 5.09 106.3 PASS
Tetrachloroethene 767,658 5.26 5.12 102.8 PASS
QC_SUM-v2
EA Job # 0920-079 Page 13 of 25
QC Summary Report Enthalpy Analytical, LLC
Sample Name : 5ppbv TO15 LCS LD
Sample Info : 125mL load; Can #2075; GCMSPrepPg946
Data File : T20002726.D
Dilution : 1
Pressurization Factor : 1.000
Acquisition Date : 2020-09-30 15:18:46
Instrument Method : TO15-SCN2.M
Matrix : AIR
Target Compound Response
Concentration
(PPBV)
Tag Value
(PPBV) % Recovery Flag
2-Hexanone (Methyl butyl ketone)1,525,641 5.41 5.12 105.8 PASS
Dibromochloromethane 1,023,189 5.78 5.04 114.6 PASS
1,2-Dibromoethane 859,483 5.45 5.12 106.6 PASS
Chlorobenzene 1,150,903 5.43 5.15 105.5 PASS
Ethylbenzene 1,717,277 4.91 4.97 98.8 PASS
m-/p-Xylenes 1,394,391 5.02 5.07 99.0 PASS
o-Xylene 1,383,293 4.93 5.01 98.5 PASS
Styrene 1,095,426 5.22 4.90 106.6 PASS
Bromoform 1,008,116 6.18 5.02 123.3 PASS
1,1,2,2-Tetrachloroethane 1,133,849 5.06 5.06 100.2 PASS
4-Ethyltoluene 2,103,100 5.33 5.09 104.7 PASS
1,3,5-Trimethylbenzene 1,703,909 5.11 5.07 100.9 PASS
1,2,4-Trimethylbenzene 1,727,040 5.13 5.01 102.5 PASS
1,3-Dichlorobenzene 1,298,093 5.48 5.08 107.9 PASS
1,4-Dichlorobenzene 1,291,343 5.24 5.03 104.3 PASS
Benzyl chloride 1,680,031 5.50 5.03 109.3 PASS
1,2-Dichlorobenzene 1,281,627 5.45 5.07 107.6 PASS
1,2,4-Trichlorobenzene 1,192,279 5.57 4.98 111.8 PASS
Hexachlorobutadiene 996,510 5.45 4.94 110.3 PASS
Naphthalene 2,692,436 6.11 5.04 121.3 PASS
QC_SUM-v2
EA Job # 0920-079 Page 14 of 25
Quantitation Report Enthalpy Analytical, LLC
Sample Name : 5ppbv TO15 LCS LD
Sample Info : 125mL load; Can #2075; GCMSPrepPg946
Data File : T20002726.D
Dilution : 1
Pressurization Factor : 1.000
Acquisition Date : 2020-09-30 15:18:46
Instrument Method : TO15-SCN2.M
Matrix : AIR
Target Compound
Concentration(PPBV)RL(PPBV)MDL(PPBV)Concentration(ug/m3)RL(ug/m3)MDL(ug/m3) % Diff Flag *
Propylene 4.58 0.0383 0.0350 7.88 0.0660 0.0602 0.2
Freon 12 (CCl2F2) 4.51 0.0384 0.0350 22.3 0.190 0.173 1.3
Freon 114 (C2Cl2F4) 4.83 0.0398 0.0350 33.7 0.279 0.245 2.7
Chloromethane 4.75 0.0389 0.0350 9.80 0.0803 0.0723 0.5
Chloroethene (Vinyl chloride) 4.99 0.0399 0.0350 12.8 0.102 0.0895 0.8
1,3-Butadiene 4.88 0.0386 0.0350 10.8 0.0855 0.0774 1.9
Bromomethane 5.00 0.0392 0.0350 19.4 0.152 0.136 3.4
Chloroethane 4.65 0.0401 0.0350 12.3 0.106 0.0924 2.5
Freon 11 (CCl3F) 4.83 0.0413 0.0350 27.1 0.232 0.197 1.0
Ethanol 4.43 0.0400 0.0400 8.35 0.0754 0.0754 0.1
Freon 113 (C2Cl3F3) 4.87 0.0396 0.0350 37.3 0.304 0.268 0.2
1,1-Dichloroethene 4.53 0.0398 0.0350 17.9 0.158 0.139 0.5
Acetone 4.18 0.0395 0.0350 9.92 0.0938 0.0831 0.5
Carbon disulfide 4.50 0.0397 0.0350 14.0 0.124 0.109 0.6
Isopropyl alcohol 4.74 0.0396 0.0350 11.7 0.0973 0.0860 1.8
Methylene chloride 4.00 0.0401 0.0350 13.9 0.139 0.122 0.9 m
trans-1,2-Dichloroethene 4.61 0.0404 0.0350 18.3 0.160 0.139 0.9
Methyl tert-butyl ether 4.55 0.0404 0.0350 16.4 0.146 0.126 1.2
Hexane 4.73 0.0403 0.0350 16.7 0.142 0.123 0.3
1,1-Dichloroethane 4.33 0.0390 0.0350 17.5 0.158 0.142 1.4
Vinyl acetate 5.28 0.0401 0.0350 18.6 0.141 0.123 0.3 m
cis-1,2-Dichloroethene 4.55 0.0398 0.0350 18.1 0.158 0.139 0.0
Methyl ethyl ketone (2-Butanone) 4.54 0.0406 0.0350 13.4 0.120 0.103 2.2
Ethyl acetate 4.79 0.0400 0.0350 17.2 0.144 0.126 1.5
Chloroform 4.56 0.0402 0.0350 22.3 0.196 0.171 1.8
Tetrahydrofuran 4.65 0.0399 0.0350 13.7 0.118 0.103 1.5
1,1,1-Trichloroethane 4.58 0.0394 0.0350 25.0 0.215 0.191 1.7
Cyclohexane 4.75 0.0402 0.0350 16.4 0.138 0.120 0.2
Carbon tetrachloride 4.92 0.0400 0.0350 30.9 0.252 0.220 0.4
Benzene 4.90 0.0393 0.0350 15.6 0.126 0.112 0.3
1,2-Dichloroethane 4.92 0.0404 0.0350 19.9 0.163 0.142 0.7
Heptane 5.05 0.0398 0.0350 20.7 0.163 0.143 1.0
Trichloroethene 5.52 0.0400 0.0350 29.7 0.215 0.188 1.0
1,2-Dichloropropane 4.90 0.0392 0.0350 22.7 0.181 0.162 3.9
1,4-Dioxane 5.33 0.0399 0.0350 19.2 0.144 0.126 0.8 m
Bromodichloromethane 5.09 0.0396 0.0350 34.1 0.265 0.235 0.3
cis-1,3-Dichloropropene 4.84 0.0390 0.0350 22.0 0.177 0.159 0.1
Methyl isobutyl ketone 5.55 0.0408 0.0350 22.7 0.167 0.143 0.2
Toluene 5.08 0.0403 0.0350 19.2 0.152 0.132 1.0
trans-1,3-Dichloropropene 4.81 0.0404 0.0350 21.8 0.184 0.159 0.4
1,1,2-Trichloroethane 5.40 0.0400 0.0350 29.5 0.218 0.191 0.5
Tetrachloroethene 5.26 0.0400 0.0350 35.7 0.271 0.237 1.1
2-Hexanone (Methyl butyl ketone) 5.41 0.0401 0.0350 22.2 0.164 0.143 0.1
Dibromochloromethane 5.78 0.0395 0.0350 49.2 0.336 0.298 0.1
1,2-Dibromoethane 5.45 0.0403 0.0350 41.9 0.310 0.269 0.4
Chlorobenzene 5.43 0.0410 0.0350 25.0 0.189 0.161 1.0
Ethylbenzene 4.91 0.0392 0.0350 21.3 0.170 0.152 0.2
m-/p-Xylenes 5.02 0.0404 0.0350 21.8 0.175 0.152 2.0
o-Xylene 4.93 0.0396 0.0350 21.4 0.172 0.152 0.8
Styrene 5.22 0.0388 0.0350 22.2 0.165 0.149 0.0
Bromoform 6.18 0.0400 0.0350 63.9 0.413 0.362 0.5
1,1,2,2-Tetrachloroethane 5.06 0.0400 0.0350 34.8 0.274 0.240 0.6
4-Ethyltoluene 5.33 0.0402 0.0350 26.2 0.198 0.172 1.0
1,3,5-Trimethylbenzene 5.11 0.0402 0.0350 25.1 0.197 0.172 0.4
1,2,4-Trimethylbenzene 5.13 0.0397 0.0350 25.2 0.195 0.172 0.7
1,3-Dichlorobenzene 5.48 0.0407 0.0350 33.0 0.245 0.210 0.4
1,4-Dichlorobenzene 5.24 0.0402 0.0350 31.5 0.242 0.210 0.7
Benzyl chloride 5.50 0.0398 0.0350 28.5 0.206 0.181 0.2
1,2-Dichlorobenzene 5.45 0.0406 0.0350 32.8 0.244 0.210 0.3
1,2,4-Trichlorobenzene 5.57 0.0405 0.0350 41.3 0.301 0.260 0.6
Hexachlorobutadiene 5.45 0.0406 0.0350 58.1 0.433 0.373 0.4
Naphthalene 6.11 0.0417 0.0350 32.0 0.219 0.183 1.5
TO15_Quant_Ambient - v2
EA Job # 0920-079 Page 15 of 25
Quantitation Report Enthalpy Analytical, LLC
Sample Name : 5ppbv TO15 LCS LD
Sample Info : 125mL load; Can #2075; GCMSPrepPg946
Data File : T20002726.D
Dilution : 1
Pressurization Factor : 1.000
Acquisition Date : 2020-09-30 15:18:46
Instrument Method : TO15-SCN2.M
Matrix : AIR
Target Compound
Concentration(PPBV)RL(PPBV)MDL(PPBV)Concentration(ug/m3)RL(ug/m3)MDL(ug/m3) % Diff Flag *
Internal Standards Response
Retention Time
(min)
Concentration
(PPBV) Flag *
Bromochloromethane (IS) 491,380 12.38 5.01 PASS
1,4-Difluorobenzene (IS) 1,792,230 14.10 5.03 PASS
Chlorobenzene-d5 (IS) 1,513,182 18.37 4.84 PASS
(ND) = Not Detected
* (J) = Below Calibration Range, (E) = Above Calibration Range, (m) = Manual Integration
IS Acceptance Criteria: RT +/- 20 sec, Response +/- 40%
TO15_Quant_Ambient - v2
EA Job # 0920-079 Page 16 of 25
Canister and Controller Data Sheet Enthalpy Analytical, LLC
Client Name: Hart & Hickman - Raleigh
Client #: CAM-011
Enthalpy Job #: 0920-079
Controller ID Data File Initial Flow
(cc/min)
Return Flow
(cc/min)
E-004 T20001094 183.6 181.2
Canister ID Blank Check Datafile
Canister Pressure
Pre-Sample
(mmHg)
Canister Pressure
Post-Sample
(mmHg)
Canister Pressure
Final
(mmHg)
Canister
Pressurization
Factor
161 T20002270 -760 -153 807 2.594
Date Prepared: 9/10/20 Prepared By: AAMDate Received: 9/11/20 Received By: MBL
Controller Data
Canister Data
0920-079 CanContrDataSheet V6c (complete).xls
EA Job # 0920-079 Page 17 of 25

Narrative Summary

EA Job # 0920-079 Page 18 of 25

Enthalpy Analytical Narrative Summary

Company Hart & Hickman - Raleigh Client #CAM-011
Analyst TDD Job #0920-079
Parameters EPA Method TO-15 # Samples 1 (1.29L) Canister

Custody Matt Loftis received the sample on 9/11/20 after being relinquished by
Hart & Hickman – Raleigh. The sample was received at ambient
temperature and in good condition.
Prior to, during, and after analysis, the sample was kept under lock with
access only to authorized personnel by Enthalpy Analytical, LLC.
Analysis The sample was analyzed for the TO-15 target compound list using the
analytical procedures in EPA Method TO-15, Determination of Volatile
Organic Compounds (VOCs) In Air Collected In Specially-Prepared
Canisters And Analyzed by Gas Chromatography/Mass Spectrometry
(GC/MS).
Upon receipt, the canister pressure was measured and recorded. The can
was then pressurized and a dilution ratio was calculated (see page 17).
The Agilent Technologies Model 7890A, Gas Chromatograph "Tobias"
(S/N CN10823053) was equipped with a 5973N Inert MSD (S/N
US03940689) and a Restek Rxi-624 Sil MS, 60 m x 0.32 mm x 1.8 µm
(S/N 1607896) capillary column for this analysis. The sample and
standards were introduced directly to the analyzer using an Entech
7100A Preconcentrator.
Calibration The associated BFB tunes met method acceptance criteria. The initial
calibration (T050520A-TO15) met the 30% RSD criteria. The initial
calibration verification met the 30% recovery criteria. The continuing
calibration met the 30% difference criteria. Full calibration data is
available upon request.
Chromatographic
Conditions
The acquisition method (TO15-SCN2.M) is not included in this report
but is available upon request.
QC Notes All internal standard area responses and retention time criteria were met
for these analyses.
The Laboratory Control Standards (LCS) associated with this sample
data met 70-130% recovery criteria.
EA Job # 0920-079 Page 19 of 25

Enthalpy Analytical Narrative Summary
(continued)

QC Notes
(continued)
The Laboratory Duplicate (LD) associated with this sample data met the
25% difference acceptance criteria.
No target analytes were identified at concentrations greater than 3 times
the MDL in the associated humid blank.
The sample was analyzed within the 30-day holding time required by
the method.
Reporting Notes The LCS was analyzed in duplicate and has been reported as a
Laboratory Duplicate in the Lab QC section of this report.
These analyses met the requirements of the TNI Standard. Any
deviations from the requirements of the reference method or TNI
Standard have been stated above.
The results presented in this report are representative of the samples as
provided to the laboratory.

EA Job # 0920-079 Page 20 of 25

General Reporting Notes
The following are general reporting notes that are applicable to all Enthalpy Analytical, LLC data reports, unless specifically noted otherwise.

 Any analysis which refers to the method as “Type” represents a planned deviation from the
reference method. For instance a Hydrogen Sulfide assay from a Tedlar bag would be labeled
as “EPA Method 16-Type” because Tedlar bags are not mentioned as one of the collection
options in EPA Method 16.
 The acronym MDL represents the Minimum Detection Limit. Below this value the laboratory
cannot determine the presence of the analyte of interest reliably.
 The acronym LOQ represents the Limit of Quantification. Below this value the laboratory cannot quantitate the analyte of interest within the criteria of the method.
 The acronym ND following a value indicates a non-detect or analytical result below the MDL.
 The letter J in the Qualifier or Flag column in the results indicates that the value is between
the MDL and the LOQ. The laboratory can positively identify the analyte of interest as
present, but the value should be considered an estimate.
 The letter E in the Qualifier or Flag column indicates an analytical result exceeding 100% of
the highest calibration point. The associated value should be considered as an estimate.
 Sample results are presented ‘as measured’ for single injection methodologies, or an average value if multiple injections are made. If all injections are below the MDL, the sample is considered non-detect and the ND value is presented. If one, but not all, are below the MDL, the MDL value is used for any injections that are below the MDL. For example, if the MDL is 0.500 and LOQ is 1.00, and the instrument measures 0.355, 0.620, and 0.442 - the result reported is the average of 0.500, 0.620, and 0.500 - - - i.e. 0.540 with a J flag.
 When a spike recovery (Bag Spike, Collocated Spike Train, or liquid matrix spike) is being
calculated, the native (unspiked) sample result is used in the calculations, as long as the value
is above the MDL. If a sample is ND, then 0 is used as the native amount (not the MDL
value).
 The acronym DF represents Dilution Factor. This number represents dilution of the sample
during the preparation and/or analysis process. The analytical result taken from a laboratory
instrument is multiplied by the DF to determine the final undiluted sample results.
 The addition of MS to the Sample ID represents a Matrix Spike. An aliquot of an actual sample is spiked with a known amount of analyte so that a percent recovery value can be determined. The MS analysis indicates what effect the sample matrix may have on the target analyte, i.e. whether or not anything in the sample matrix interferes with the analysis of the analyte(s).
EA Job # 0920-079 Page 21 of 25

General Reporting Notes
(continued)
 The addition of MSD to the Sample ID represents a Matrix Spike Duplicate. Prepared in the same manner as a MS, the use of duplicate matrix spikes allows further confirmation of laboratory quality by showing the consistency of results gained by performing the same steps multiple times.
 The addition of LD to the Sample ID represents a Laboratory Duplicate. The analyst prepares
an additional aliquot of sample for testing and the results of the duplicate analysis are
compared to the initial result. The result should have a difference value of within 10% of the
initial result (if the results of the original analysis are greater than the LOQ).
 The addition of AD to the Sample ID represents an Alternate Dilution. The analyst prepares an
additional aliquot at a different dilution factor (usually double the initial factor). This analysis
helps confirm that no additional compound is present and coeluting or sharing absorbance with
the analyte of interest, as they would have a different response/absorbance than the analyte of
interest.
 The Sample ID LCS represents a Laboratory Control Sample. Clean matrix, similar to the client sample matrix, prepared and analyzed by the laboratory using the same reagents, spiking standards and procedures used for the client samples. The LCS is used to assess the control of the laboratory’s analytical system. Whenever spikes are prepared for our client projects, two spikes are retained as LCSs. The LCSs are labeled with the associated project number and kept in-house at the appropriate temperature conditions. When the project samples are received for analysis, the LCSs are analyzed to confirm that the analyte could be recovered from the media, separate from the samples which were used on the project and which may have been affected by source matrix, sample collection, and/or sample transport.
 Significant Figures: Where the reported value is much greater than unity (1.00) in the units expressed, the number is rounded to a whole number of units, rather than to 3 significant
figures. For example, a value of 10,456.45 ug catch is rounded to 10,456 ug. There are five
significant digits displayed, but no confidence should be placed on more than two significant
digits. In the case of small numbers, generally 3 significant figures are presented, but still only
2 should be used with confidence. Many neat materials are only certified to 3 digits, and as the
mathematically correct final result is always 1 digit less than all its pre-cursors - 2 significant
figures are what are most defensible.
 Manual Integration: The data systems used for processing will flag manually integrated peaks with an “M”. There are several reasons a peak may be manually integrated. These reasons will be identified by the following two letter designations on sample chromatograms, if provided in the report. The peak was not integrated by the software “NI”, the peak was
integrated incorrectly by the software “II” or the wrong peak was integrated by the software “WP”. These codes will accompany the analyst’s manual integration stamp placed next to the compound name on the chromatogram.
EA Job # 0920-079 Page 22 of 25

Sample Custody
EA Job # 0920-079 Page 23 of 25
7 ~ENTH.AlP)­Air Chain of Custody Record Turn Around Time (rush by advanced notice only)I" .~... Lab No: Standard: 5 Day: 3 Day:
A N A L Y T I C A l Page : of 2 Day: 1 Day: Custom TAT:
CUSTOMER INFORMATION PROJECT INFORMATION
#N/A Company: Hart & Hickman Name: Cameron Village Condominiums
#N/A ReportTo: Justin Ballard " Number: CAM-Oll
Special Instructions: HOLD SG-1S Email: jballard @harth ickman.com P.O. #: CAM-Oll
~ddress: 3921 Sunset Ridge Rd. #301 Address: Raleigh. NC
Phone: [phone] GloballD:
Fax: Sampled By: Jayna Sananikone
Analysis Requested
g
0 :r
H&H VOCs by TO-15 LIl .-t
I
Type Equipment Information Sampling Information 0 I­
>.0
(I) Indoor Size Flow VI
Sample 10 Sample Start Vacuum Sample End Sample End U(A) Ambient Sample Start Vacuum End 0Canister 10 (1L,3L, Controller Start(SV) Soil Vapor Date Time Date Time ("Hg) >
(5) Source 6l,1SL) 10 ("Hg) :r
o(l :r
1 SG-1S SV 161 1L 9/10/2020 11:40:00 AM 27 9/10/2020 11:50:00 AM 3 X
2
3
4
5
6
7
8
9
10
Signature Print Name Company / Title Date /Time
1 Relinquished By: I~£V-~___ J 1:\'1"1 ~ J~htt.'ll~Y"4-t( ~H cl/lI V) /tOO
1 Received By: -£../Jtt~/A"'" ',,"-'qV_ ,~'~ ~('8Vlt i?t£J ~v b=:P+ 0/1I;;' 0 IL&D
2 Relinquished By: ~,~ ~ Arenf AodJr ~A 'V1l/JO /(Bk
2 Received By: -4"{,A~_ L A.,L-... ... /""tJ1rl'J "GA /D.~~ J): 1/-0........ -' ~,...t-ey:t-II-<-.O
3 Relinquished By : \
3 Received By:
AII'1~"Y"A-r -r~-(). c"ood Lo"l.d,:~.o" 0.,...."-z.C'
EA Job # 0920-079 Page 24 of 25

This Is The Last Page
Of This Report.

EA Job # 0920-079 Page 25 of 25

Appendix D July 2020 DEQ Risk Calculator Results
Version Date:
Basis:
Site Name:
Site Address:
DEQ Section:
Site ID:
Exposure Unit ID:
Submittal Date:
Reviewed By:
Prepared By:Hart & Hickman, PC
3921 Sunset Ridge Road, Suite 301, Raleigh, North Carolina 27529
SG-1S
North Carolina Department of Environmental Quality
Risk Calculator
Cameron Village Condominiums
1801 Cameron Street, Raleigh, Wake County, North Carolina
Brownfields Program
BPN 24017-20-092
July 2020
May 2020 EPA RSL Table
North Carolina DEQ Risk Calculator
Complete Exposure Pathways
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: BPN 24017-20-092
Exposure Unit ID: SG-1S
Note: Risk output will only be calculated for complete exposure pathways.
Receptor Pathway
Check box if
pathway
complete
Soil
Groundwater Use
Soil
Groundwater Use
Construction Worker Soil
Soil
Surface Water
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Source Soil
Source Groundwater
Source Soil
Source Groundwater
Input Form 1A
VAPOR INTRUSION PATHWAYS
DIRECT CONTACT SOIL AND WATER PATHWAYS
Resident
Non-Residential Worker
Recreator/Trespasser
Resident
Non-Residential Worker
CONTAMINANT MIGRATION PATHWAYS
Groundwater
Surface Water
North Carolina DEQ Risk Calculator
Exposure Point Concentrations
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: BPN 24017-20-092
Exposure Unit ID: SG-1S
Description of Exposure Point Concentration Selection:
Note: Chemicals highlighted in orange are non-volatile chemicals. Since these chemicals do not pose a vapor intrusion risk, no risk values are calculated for these chemicals.
Exposure Point Concentration
(ug/m3)
Notes:CAS Number Chemical Minimum Concentration (Qualifier)
Maximum Concentration (Qualifier)
Units Location of Maximum Concentration
Detection Frequency
Range of Detection Limits
Concentration Used for Screening
Background Value
Screening Toxicity Value (Screening Level) (n/c)
Potential ARAR/TBC Value
Potential ARAR/TBC Source
COPC Flag (Y/N)
Rationale for Selection or Deletion
23.6 SG-1S 67-64-1 Acetone ug/m3
4.28 SG-1S 71-43-2 Benzene ug/m3
0.306 SG-1S 106-99-0 Butadiene, 1,3-ug/m3
1.11 SG-1S 75-15-0 Carbon Disulfide ug/m3
0.544 SG-1S 108-90-7 Chlorobenzene ug/m3
18.6 SG-1S 67-66-3 Chloroform ug/m3
0.218 SG-1S 74-87-3 Chloromethane ug/m3
5.79 SG-1S 110-82-7 Cyclohexane ug/m3
2 75-71-8 Dichlorodifluoromethane ug/m3
0.36 SG-1S 123-91-1 Dioxane, 1,4-J ug/m3
1.98 SG 141-78-6 Ethyl Acetate ug/m3
34.9 SG-1S 100-41-4 Ethylbenzene ug/m3
11.3 SG-1S 109-99-9 ~Tetrahydrofuran ug/m3
6.26 SG-1S 142-82-5 Heptane, N-ug/m3
2.06 SG-1S 110-54-3 Hexane, N-ug/m3
0.761 SG-1S 591-78-6 Hexanone, 2-ug/m3
3.92 SG-1S 67-63-0 Isopropanol ug/m3
8.9 SG-1S 78-93-3 Methyl Ethyl Ketone (2-Butanone)ug/m3
17.6 SG-1S 108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone)ug/m3
4.66 SG-1S 91-20-3 ~Naphthalene ug/m3
3.65 SG-1S 115-07-1 Propylene ug/m3
7.46 SG-1S 100-42-5 Styrene ug/m3
26.7 SG-1S 127-18-4 Tetrachloroethylene ug/m3
88.1 SG-1S 108-88-3 Toluene ug/m3
1.64 SG-1S 79-01-6 Trichloroethylene ug/m3
3.55 SG-1S 75-69-4 Trichlorofluoromethane ug/m3
146 SG-1S 95-63-6 Trimethylbenzene, 1,2,4-ug/m3
69.2 SG-1S 108-67-8 Trimethylbenzene, 1,3,5-ug/m3
212 SG-1S 1330-20-7 Xylenes ug/m3
Input Form 2D
Soil Gas Exposure Point Concentration Table
Maximum detected concentrations in soil gas points at the Site
North Carolina DEQ Risk Calculator
Risk for Individual Pathways Output Form 1A
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: BPN 24017-20-092
Exposure Unit ID: SG-1S
Receptor Pathway Carcinogenic
Risk Hazard Index Risk exceeded?
Soil NC NC NC
Groundwater Use*NC NC NC
Soil NC NC NC
Groundwater Use*NC NC NC
Construction Worker Soil NC NC NC
Soil NC NC NC
Surface Water*NC NC NC
Receptor Pathway Carcinogenic Risk Hazard Index Risk exceeded?
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air 6.0E-06 2.2E-01 NO
Indoor Air NC NC NC
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air 5.9E-07 2.1E-02 NO
Indoor Air NC NC NC
Pathway Source
Source Soil NC
Source Groundwater NC
Source Soil NC
Source Groundwater NC
3. NM = Not Modeled
4. NC = Pathway not complete
DIRECT CONTACT SOIL AND WATER CALCULATORS
Resident
Non-Residential Worker
Recreator/Trespasser
2. * = If concentrations in groundwater exceed the NC 2L Standards or IMAC, or concentrations in surface water exceed the
NC 2B Standards, appropriate remediation and/or institutional control measures will be necessary to be eligible for a risk-based
closure.
Surface Water Exceedence of 2B at Receptor?
Exceedence of 2B at Receptor?
VAPOR INTRUSION CALCULATORS
Resident
Non-Residential Worker
CONTAMINANT MIGRATION CALCULATORS
Target Receptor Concentrations Exceeded?
Groundwater Exceedence of 2L at Receptor?
Exceedence of 2L at Receptor?
1. If lead concentrations were entered in the exposure point concentration tables, see the individual calculator sheets for lead
concentrations in comparison to screening levels. Note that lead is not included in cumulative risk calculations.
Notes:
North Carolina DEQ Risk Calculator
DEQ Risk Calculator - Vapor Intrusion - Resident Soil Gas to Indoor Air
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: BPN 24017-20-092
Exposure Unit ID: SG-1S
CAS #Chemical Name:
Soil Gas Concentration
(ug/m3)
Calculated
Indoor Air
Concentration
(ug/m3)
Target Indoor Air Conc. for Carcinogens @ TCR = 1E-06
Target Indoor Air Conc. for Non-Carcinogens @ THQ = 0.2
Calculated
Carcinogenic
Risk
Calculated
Non-
Carcinogenic
Hazard
Quotient
67-64-1 Acetone 23.6 0.708 -6.5E+03 2.2E-05
71-43-2 Benzene 4.28 0.1284 3.6E-01 6.3E+00 3.6E-07 4.1E-03
67-66-3 Chloroform 18.6 0.558 1.2E-01 2.0E+01 4.6E-06 5.5E-03
100-41-4 Ethylbenzene 34.9 1.047 1.1E+00 2.1E+02 9.3E-07 1.0E-03
109-99-9 ~Tetrahydrofuran 11.3 0.339 -4.2E+02 1.6E-04
142-82-5 Heptane, N-6.26 0.1878 -8.3E+01 4.5E-04
78-93-3 Methyl Ethyl Ketone (2-Butanone)8.9 0.267 -1.0E+03 5.1E-05
108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone)17.6 0.528 -6.3E+02 1.7E-04
100-42-5 Styrene 7.46 0.2238 -2.1E+02 2.1E-04
127-18-4 Tetrachloroethylene 26.7 0.801 1.1E+01 8.3E+00 7.4E-08 1.9E-02
108-88-3 Toluene 88.1 2.643 -1.0E+03 5.1E-04
79-01-6 Trichloroethylene 1.64 0.0492 4.8E-01 4.2E-01 1.0E-07 2.4E-02
75-69-4 Trichlorofluoromethane 3.55 0.1065 --
95-63-6 Trimethylbenzene, 1,2,4-146 4.38 -1.3E+01 7.0E-02
108-67-8 Trimethylbenzene, 1,3,5-69.2 2.076 -1.3E+01 3.3E-02
1330-20-7 Xylenes 212 6.36 -2.1E+01 6.1E-02
Cumulative:6.0E-06 2.2E-01
All concentrations are in ug/m3
Output Form 3B
Carcinogenic risk and hazard quotient cells highlighted in orange are associated with non-volatile chemicals. Since these chemicals do not pose a vapor intrusion risk, no risk values are calculated for these chemicals.
North Carolina DEQ Risk Calculator
DEQ Risk Calculator - Vapor Intrusion - Non-Residential Worker Soil Gas to Indoor Air
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: BPN 24017-20-092
Exposure Unit ID: SG-1S
CAS #Chemical Name:
Soil Gas
Concentration
(ug/m3)
Calculated
Indoor Air Concentration
(ug/m3)
Target Indoor
Air Conc. for
Carcinogens @
TCR = 1E-06
Target Indoor Air
Conc. for Non-
Carcinogens @
THQ = 0.2
Calculated Carcinogenic Risk
Calculated Non-Carcinogenic Hazard
Quotient
67-64-1 Acetone 23.6 0.236 -2.7E+04 1.7E-06
71-43-2 Benzene 4.28 0.0428 1.6E+00 2.6E+01 2.7E-08 3.3E-04
67-66-3 Chloroform 18.6 0.186 5.3E-01 8.6E+01 3.5E-07 4.3E-04
100-41-4 Ethylbenzene 34.9 0.349 4.9E+00 8.8E+02 7.1E-08 8.0E-05
109-99-9 ~Tetrahydrofuran 11.3 0.113 -1.8E+03 1.3E-05
142-82-5 Heptane, N-6.26 0.0626 -3.5E+02 3.6E-05
110-54-3 Hexane, N-2.06 0.0206 -6.1E+02 6.7E-0667-63-0 Isopropanol 3.92 0.0392 -1.8E+02 4.5E-05
78-93-3 Methyl Ethyl Ketone (2-Butanone)8.9 0.089 -4.4E+03 4.1E-06
108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone)17.6 0.176 -2.6E+03 1.3E-05
91-20-3 ~Naphthalene 4.66 0.0466 3.6E-01 2.6E+00 1.3E-07 3.5E-03115-07-1 Propylene 3.65 0.0365 -2.6E+03 2.8E-06100-42-5 Styrene 7.46 0.0746 -8.8E+02 1.7E-05127-18-4 Tetrachloroethylene 26.7 0.267 4.7E+01 3.5E+01 5.7E-09 1.5E-03
108-88-3 Toluene 88.1 0.881 -4.4E+03 4.0E-05
79-01-6 Trichloroethylene 1.64 0.0164 3.0E+00 1.8E+00 5.5E-09 1.9E-03
75-69-4 Trichlorofluoromethane 3.55 0.0355 --
95-63-6 Trimethylbenzene, 1,2,4-146 1.46 -5.3E+01 5.6E-03
108-67-8 Trimethylbenzene, 1,3,5-69.2 0.692 -5.3E+01 2.6E-031330-20-7 Xylenes 212 2.12 -8.8E+01 4.8E-03
Cumulative:5.9E-07 2.1E-02
All concentrations are in ug/m3
Output Form 3E
Carcinogenic risk and hazard quotient cells highlighted in orange are associated with non-volatile chemicals. Since these chemicals do not pose a vapor intrusion
risk, no risk values are calculated for these chemicals.
North Carolina DEQ Risk Calculator
Version Date:
Basis:
Site Name:
Site Address:
DEQ Section:
Site ID:
Exposure Unit ID:
Submittal Date:
Reviewed By:
Prepared By:Hart & Hickman, PC
3921 Sunset Ridge Road, Suite 301, Raleigh, North Carolina 27529
SG-1D
North Carolina Department of Environmental Quality
Risk Calculator
Cameron Village Condominiums
1801 Cameron Street, Raleigh, Wake County, North Carolina
Brownfields Program
BPN 24017-20-092
July 2020
May 2020 EPA RSL Table
North Carolina DEQ Risk Calculator
Complete Exposure Pathways
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: BPN 24017-20-092
Exposure Unit ID: SG-1D
Note: Risk output will only be calculated for complete exposure pathways.
Receptor Pathway
Check box if
pathway
complete
Soil
Groundwater Use
Soil
Groundwater Use
Construction Worker Soil
Soil
Surface Water
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Source Soil
Source Groundwater
Source Soil
Source Groundwater
Input Form 1A
VAPOR INTRUSION PATHWAYS
DIRECT CONTACT SOIL AND WATER PATHWAYS
Resident
Non-Residential Worker
Recreator/Trespasser
Resident
Non-Residential Worker
CONTAMINANT MIGRATION PATHWAYS
Groundwater
Surface Water
North Carolina DEQ Risk Calculator
Exposure Point Concentrations
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: BPN 24017-20-092
Exposure Unit ID: SG-1D
Description of Exposure Point Concentration Selection:
Note: Chemicals highlighted in orange are non-volatile chemicals. Since these chemicals do not pose a vapor intrusion risk, no risk values are calculated for these chemicals.
Exposure Point Concentration
(ug/m3)
Notes:CAS Number Chemical Minimum Concentration (Qualifier)
Maximum Concentration (Qualifier)
Units Location of Maximum Concentration
Detection Frequency
Range of Detection Limits
Concentration Used for Screening
Background Value
Screening Toxicity Value (Screening Level) (n/c)
Potential ARAR/TBC Value
Potential ARAR/TBC Source
COPC Flag (Y/N)
Rationale for Selection or Deletion
21 SG-1D 67-64-1 Acetone ug/m3
3.6 SG-1D 71-43-2 Benzene ug/m3
17 SG-1D 67-66-3 Chloroform ug/m3
53 SG-1D 100-41-4 Ethylbenzene ug/m3
5.1 SG-1D 109-99-9 ~Tetrahydrofuran J ug/m3
8.7 SG-1D 142-82-5 Heptane, N-ug/m3
7.9 SG-1D 78-93-3 Methyl Ethyl Ketone (2-Butanone)J ug/m3
20 SG-1D 108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone)ug/m3
6.7 SG-1D 100-42-5 Styrene ug/m3
46 SG-1D 127-18-4 Tetrachloroethylene ug/m3
120 SG-1D 108-88-3 Toluene ug/m3
2 SG-1D 79-01-6 Trichloroethylene ug/m3
3.4 SG-1D 75-69-4 Trichlorofluoromethane J ug/m3
230 SG-1D 95-63-6 Trimethylbenzene, 1,2,4-ug/m3
100 SG-1D 108-67-8 Trimethylbenzene, 1,3,5-ug/m3
351 SG-1D 1330-20-7 Xylenes ug/m3
Input Form 2D
Soil Gas Exposure Point Concentration Table
Maximum detected concentrations in soil gas points at the Site
North Carolina DEQ Risk Calculator
Risk for Individual Pathways Output Form 1A
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: BPN 24017-20-092
Exposure Unit ID: SG-1D
Receptor Pathway Carcinogenic
Risk Hazard Index Risk exceeded?
Soil NC NC NC
Groundwater Use*NC NC NC
Soil NC NC NC
Groundwater Use*NC NC NC
Construction Worker Soil NC NC NC
Soil NC NC NC
Surface Water*NC NC NC
Receptor Pathway Carcinogenic Risk Hazard Index Risk exceeded?
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air 6.1E-06 3.3E-01 NO
Indoor Air NC NC NC
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air 4.7E-07 2.6E-02 NO
Indoor Air NC NC NC
Pathway Source
Source Soil NC
Source Groundwater NC
Source Soil NC
Source Groundwater NC
3. NM = Not Modeled
4. NC = Pathway not complete
DIRECT CONTACT SOIL AND WATER CALCULATORS
Resident
Non-Residential Worker
Recreator/Trespasser
2. * = If concentrations in groundwater exceed the NC 2L Standards or IMAC, or concentrations in surface water exceed the
NC 2B Standards, appropriate remediation and/or institutional control measures will be necessary to be eligible for a risk-based
closure.
Surface Water Exceedence of 2B at Receptor?
Exceedence of 2B at Receptor?
VAPOR INTRUSION CALCULATORS
Resident
Non-Residential Worker
CONTAMINANT MIGRATION CALCULATORS
Target Receptor Concentrations Exceeded?
Groundwater Exceedence of 2L at Receptor?
Exceedence of 2L at Receptor?
1. If lead concentrations were entered in the exposure point concentration tables, see the individual calculator sheets for lead
concentrations in comparison to screening levels. Note that lead is not included in cumulative risk calculations.
Notes:
North Carolina DEQ Risk Calculator
DEQ Risk Calculator - Vapor Intrusion - Resident Soil Gas to Indoor Air
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: BPN 24017-20-092
Exposure Unit ID: SG-1D
CAS #Chemical Name:
Soil Gas Concentration
(ug/m3)
Calculated
Indoor Air
Concentration
(ug/m3)
Target Indoor Air Conc. for Carcinogens @ TCR = 1E-06
Target Indoor Air Conc. for Non-Carcinogens @ THQ = 0.2
Calculated
Carcinogenic
Risk
Calculated
Non-
Carcinogenic
Hazard
Quotient
67-64-1 Acetone 21 0.63 -6.5E+03 1.9E-05
71-43-2 Benzene 3.6 0.108 3.6E-01 6.3E+00 3.0E-07 3.5E-03
67-66-3 Chloroform 17 0.51 1.2E-01 2.0E+01 4.2E-06 5.0E-03
100-41-4 Ethylbenzene 53 1.59 1.1E+00 2.1E+02 1.4E-06 1.5E-03
109-99-9 ~Tetrahydrofuran 5.1 0.153 -4.2E+02 7.3E-05
142-82-5 Heptane, N-8.7 0.261 -8.3E+01 6.3E-04
78-93-3 Methyl Ethyl Ketone (2-Butanone)7.9 0.237 -1.0E+03 4.5E-05
108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone)20 0.6 -6.3E+02 1.9E-04
100-42-5 Styrene 6.7 0.201 -2.1E+02 1.9E-04
127-18-4 Tetrachloroethylene 46 1.38 1.1E+01 8.3E+00 1.3E-07 3.3E-02
108-88-3 Toluene 120 3.6 -1.0E+03 6.9E-04
79-01-6 Trichloroethylene 2 0.06 4.8E-01 4.2E-01 1.3E-07 2.9E-02
75-69-4 Trichlorofluoromethane 3.4 0.102 --
95-63-6 Trimethylbenzene, 1,2,4-230 6.9 -1.3E+01 1.1E-01
108-67-8 Trimethylbenzene, 1,3,5-100 3 -1.3E+01 4.8E-02
1330-20-7 Xylenes 351 10.53 -2.1E+01 1.0E-01
Cumulative:6.1E-06 3.3E-01
All concentrations are in ug/m3
Output Form 3B
Carcinogenic risk and hazard quotient cells highlighted in orange are associated with non-volatile chemicals. Since these chemicals do not pose a vapor intrusion risk, no risk values are calculated for these chemicals.
North Carolina DEQ Risk Calculator
DEQ Risk Calculator - Vapor Intrusion - Non-Residential Worker Soil Gas to Indoor Air
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: BPN 24017-20-092
Exposure Unit ID: SG-1D
CAS #Chemical Name:
Soil Gas
Concentration
(ug/m3)
Calculated
Indoor Air Concentration
(ug/m3)
Target Indoor
Air Conc. for
Carcinogens @
TCR = 1E-06
Target Indoor Air
Conc. for Non-
Carcinogens @
THQ = 0.2
Calculated Carcinogenic Risk
Calculated Non-Carcinogenic Hazard
Quotient
67-64-1 Acetone 21 0.21 -2.7E+04 1.5E-06
71-43-2 Benzene 3.6 0.036 1.6E+00 2.6E+01 2.3E-08 2.7E-04
67-66-3 Chloroform 17 0.17 5.3E-01 8.6E+01 3.2E-07 4.0E-04
100-41-4 Ethylbenzene 53 0.53 4.9E+00 8.8E+02 1.1E-07 1.2E-04
109-99-9 ~Tetrahydrofuran 5.1 0.051 -1.8E+03 5.8E-06
142-82-5 Heptane, N-8.7 0.087 -3.5E+02 5.0E-05
110-54-3 Hexane, N--6.1E+0267-63-0 Isopropanol -1.8E+02
78-93-3 Methyl Ethyl Ketone (2-Butanone)7.9 0.079 -4.4E+03 3.6E-06
108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone)20 0.2 -2.6E+03 1.5E-05
91-20-3 ~Naphthalene 3.6E-01 2.6E+00115-07-1 Propylene -2.6E+03100-42-5 Styrene 6.7 0.067 -8.8E+02 1.5E-05127-18-4 Tetrachloroethylene 46 0.46 4.7E+01 3.5E+01 9.8E-09 2.6E-03
108-88-3 Toluene 120 1.2 -4.4E+03 5.5E-05
79-01-6 Trichloroethylene 2 0.02 3.0E+00 1.8E+00 6.7E-09 2.3E-03
75-69-4 Trichlorofluoromethane 3.4 0.034 --
95-63-6 Trimethylbenzene, 1,2,4-230 2.3 -5.3E+01 8.8E-03
108-67-8 Trimethylbenzene, 1,3,5-100 1 -5.3E+01 3.8E-031330-20-7 Xylenes 351 3.51 -8.8E+01 8.0E-03
Cumulative:4.7E-07 2.6E-02
All concentrations are in ug/m3
Output Form 3E
Carcinogenic risk and hazard quotient cells highlighted in orange are associated with non-volatile chemicals. Since these chemicals do not pose a vapor intrusion
risk, no risk values are calculated for these chemicals.
North Carolina DEQ Risk Calculator
Version Date:
Basis:
Site Name:
Site Address:
DEQ Section:
Site ID:
Exposure Unit ID:
Submittal Date:
Reviewed By:
SG-2
North Carolina Department of Environmental Quality
Risk Calculator
Cameron Village Condominiums
1801 Cameron Street, Raleigh, Wake County, North Carolina
Brownfields Program
BPN 24017-20-092
July 2020
May 2020 EPA RSL Table
Prepared By:Hart & Hickman, PC
3921 Sunset Ridge Road, Suite 301, Raleigh, North Carolina 27529
North Carolina DEQ Risk Calculator
Complete Exposure Pathways
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: BPN 24017-20-092
Exposure Unit ID: SG-2
Note: Risk output will only be calculated for complete exposure pathways.
Receptor Pathway
Check box if
pathway
complete
Soil
Groundwater Use
Soil
Groundwater Use
Construction Worker Soil
Soil
Surface Water
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Source Soil
Source Groundwater
Source Soil
Source Groundwater
Resident
Non-Residential Worker
CONTAMINANT MIGRATION PATHWAYS
Groundwater
Surface Water
Input Form 1A
VAPOR INTRUSION PATHWAYS
DIRECT CONTACT SOIL AND WATER PATHWAYS
Resident
Non-Residential Worker
Recreator/Trespasser
North Carolina DEQ Risk Calculator
Exposure Point Concentrations
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: BPN 24017-20-092
Exposure Unit ID: SG-2
Description of Exposure Point Concentration Selection:
Note: Chemicals highlighted in orange are non-volatile chemicals. Since these chemicals do not pose a vapor intrusion risk, no risk values are calculated for these chemicals.
Exposure Point Concentration
(ug/m3)
Notes:CAS Number Chemical Minimum Concentration (Qualifier)
Maximum Concentration (Qualifier)
Units Location of Maximum Concentration
Detection Frequency
Range of Detection Limits
Concentration Used for Screening
Background Value
Screening Toxicity Value (Screening Level) (n/c)
Potential ARAR/TBC Value
Potential ARAR/TBC Source
COPC Flag (Y/N)
Rationale for Selection or Deletion
19 SG-2 67-64-1 Acetone ug/m3
3.3 SG-2 71-43-2 Benzene ug/m3
27 SG-2 67-66-3 Chloroform ug/m3
19 SG-2 100-41-4 Ethylbenzene ug/m3
17 SG-2 142-82-5 Heptane, N-ug/m3
4.9 SG-2 78-93-3 Methyl Ethyl Ketone (2-Butanone)J ug/m3
8.4 SG-2 115-07-1 Propylene J ug/m3
380 SG-2 127-18-4 Tetrachloroethylene ug/m3
52 SG-2 108-88-3 Toluene ug/m3
1.4 SG-2 79-01-6 Trichloroethylene ug/m3
2 SG-2 75-69-4 Trichlorofluoromethane J ug/m3
82 SG-2 1330-20-7 Xylenes ug/m3
Input Form 2D
Soil Gas Exposure Point Concentration Table
Maximum detected concentrations in soil gas points at the Site
North Carolina DEQ Risk Calculator
Risk for Individual Pathways Output Form 1A
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: BPN 24017-20-092
Exposure Unit ID: SG-2
Receptor Pathway Carcinogenic
Risk Hazard Index Risk exceeded?
Soil NC NC NC
Groundwater Use*NC NC NC
Soil NC NC NC
Groundwater Use*NC NC NC
Construction Worker Soil NC NC NC
Soil NC NC NC
Surface Water*NC NC NC
Receptor Pathway Carcinogenic Risk Hazard Index Risk exceeded?
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air 8.6E-06 3.3E-01 NO
Indoor Air NC NC NC
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air 6.5E-07 2.6E-02 NO
Indoor Air NC NC NC
Pathway Source
Source Soil NC
Source Groundwater NC
Source Soil NC
Source Groundwater NC
3. NM = Not Modeled
4. NC = Pathway not complete
2. * = If concentrations in groundwater exceed the NC 2L Standards or IMAC, or concentrations in surface water exceed the
NC 2B Standards, appropriate remediation and/or institutional control measures will be necessary to be eligible for a risk-based
closure.
Surface Water Exceedence of 2B at Receptor?
Exceedence of 2B at Receptor?
VAPOR INTRUSION CALCULATORS
Resident
Non-Residential Worker
CONTAMINANT MIGRATION CALCULATORS
Target Receptor Concentrations Exceeded?
Groundwater Exceedence of 2L at Receptor?
Exceedence of 2L at Receptor?
1. If lead concentrations were entered in the exposure point concentration tables, see the individual calculator sheets for lead
concentrations in comparison to screening levels. Note that lead is not included in cumulative risk calculations.
Notes:
DIRECT CONTACT SOIL AND WATER CALCULATORS
Resident
Non-Residential Worker
Recreator/Trespasser
North Carolina DEQ Risk Calculator
DEQ Risk Calculator - Vapor Intrusion - Resident Soil Gas to Indoor Air
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: BPN 24017-20-092
Exposure Unit ID: SG-2
CAS #Chemical Name:
Soil Gas Concentration
(ug/m3)
Calculated
Indoor Air
Concentration
(ug/m3)
Target Indoor Air Conc. for Carcinogens @ TCR = 1E-06
Target Indoor Air Conc. for Non-Carcinogens @ THQ = 0.2
Calculated
Carcinogenic
Risk
Calculated
Non-
Carcinogenic
Hazard
Quotient
67-64-1 Acetone 19 0.57 -6.5E+03 1.8E-05
71-43-2 Benzene 3.3 0.099 3.6E-01 6.3E+00 2.8E-07 3.2E-03
67-66-3 Chloroform 27 0.81 1.2E-01 2.0E+01 6.6E-06 7.9E-03
100-41-4 Ethylbenzene 19 0.57 1.1E+00 2.1E+02 5.1E-07 5.5E-04
142-82-5 Heptane, N-17 0.51 -8.3E+01 1.2E-03
78-93-3 Methyl Ethyl Ketone (2-Butanone)4.9 0.147 -1.0E+03 2.8E-05
115-07-1 Propylene 8.4 0.252 -6.3E+02 8.1E-05
127-18-4 Tetrachloroethylene 380 11.4 1.1E+01 8.3E+00 1.1E-06 2.7E-01
108-88-3 Toluene 52 1.56 -1.0E+03 3.0E-04
79-01-6 Trichloroethylene 1.4 0.042 4.8E-01 4.2E-01 8.8E-08 2.0E-02
75-69-4 Trichlorofluoromethane 2 0.06 --
1330-20-7 Xylenes 82 2.46 -2.1E+01 2.4E-02
Cumulative:8.6E-06 3.3E-01
All concentrations are in ug/m3
Output Form 3B
Carcinogenic risk and hazard quotient cells highlighted in orange are associated with non-volatile chemicals. Since these chemicals do not pose a vapor intrusion risk, no risk values are calculated for these chemicals.
North Carolina DEQ Risk Calculator
DEQ Risk Calculator - Vapor Intrusion - Non-Residential Worker Soil Gas to Indoor Air
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: BPN 24017-20-092
Exposure Unit ID: SG-2
CAS #Chemical Name:
Soil Gas
Concentration
(ug/m3)
Calculated
Indoor Air Concentration
(ug/m3)
Target Indoor
Air Conc. for
Carcinogens @
TCR = 1E-06
Target Indoor Air
Conc. for Non-
Carcinogens @
THQ = 0.2
Calculated Carcinogenic Risk
Calculated Non-Carcinogenic Hazard
Quotient
67-64-1 Acetone 19 0.19 -2.7E+04 1.4E-06
71-43-2 Benzene 3.3 0.033 1.6E+00 2.6E+01 2.1E-08 2.5E-04
67-66-3 Chloroform 27 0.27 5.3E-01 8.6E+01 5.1E-07 6.3E-04
100-41-4 Ethylbenzene 19 0.19 4.9E+00 8.8E+02 3.9E-08 4.3E-05
109-99-9 ~Tetrahydrofuran -1.8E+03
142-82-5 Heptane, N-17 0.17 -3.5E+02 9.7E-05
110-54-3 Hexane, N--6.1E+0267-63-0 Isopropanol -1.8E+02
78-93-3 Methyl Ethyl Ketone (2-Butanone)4.9 0.049 -4.4E+03 2.2E-06
108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone)-2.6E+03
91-20-3 ~Naphthalene 3.6E-01 2.6E+00115-07-1 Propylene 8.4 0.084 -2.6E+03 6.4E-06100-42-5 Styrene -8.8E+02127-18-4 Tetrachloroethylene 380 3.8 4.7E+01 3.5E+01 8.1E-08 2.2E-02
108-88-3 Toluene 52 0.52 -4.4E+03 2.4E-05
79-01-6 Trichloroethylene 1.4 0.014 3.0E+00 1.8E+00 4.7E-09 1.6E-03
75-69-4 Trichlorofluoromethane 2 0.02 --
95-63-6 Trimethylbenzene, 1,2,4--5.3E+01
108-67-8 Trimethylbenzene, 1,3,5--5.3E+011330-20-7 Xylenes 82 0.82 -8.8E+01 1.9E-03
Cumulative:6.5E-07 2.6E-02
All concentrations are in ug/m3
Output Form 3E
Carcinogenic risk and hazard quotient cells highlighted in orange are associated with non-volatile chemicals. Since these chemicals do not pose a vapor intrusion
risk, no risk values are calculated for these chemicals.
North Carolina DEQ Risk Calculator
Version Date:
Basis:
Site Name:
Site Address:
DEQ Section:
Site ID:
Exposure Unit ID:
Submittal Date:
Reviewed By:
SG-3
North Carolina Department of Environmental Quality
Risk Calculator
Cameron Village Condominiums
1801 Cameron Street, Raleigh, Wake County, North Carolina
Brownfields Program
BPN 24017-20-092
July 2020
May 2020 EPA RSL Table
Prepared By:Hart & Hickman, PC
3921 Sunset Ridge Road, Suite 301, Raleigh, North Carolina 27529
North Carolina DEQ Risk Calculator
Complete Exposure Pathways
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: BPN 24017-20-092
Exposure Unit ID: SG-3
Note: Risk output will only be calculated for complete exposure pathways.
Receptor Pathway
Check box if
pathway
complete
Soil
Groundwater Use
Soil
Groundwater Use
Construction Worker Soil
Soil
Surface Water
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Source Soil
Source Groundwater
Source Soil
Source Groundwater
Resident
Non-Residential Worker
CONTAMINANT MIGRATION PATHWAYS
Groundwater
Surface Water
Input Form 1A
VAPOR INTRUSION PATHWAYS
DIRECT CONTACT SOIL AND WATER PATHWAYS
Resident
Non-Residential Worker
Recreator/Trespasser
North Carolina DEQ Risk Calculator
Exposure Point Concentrations
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: BPN 24017-20-092
Exposure Unit ID: SG-3
Description of Exposure Point Concentration Selection:
Note: Chemicals highlighted in orange are non-volatile chemicals. Since these chemicals do not pose a vapor intrusion risk, no risk values are calculated for these chemicals.
Exposure Point
Concentration
(ug/m3)
Notes:CAS Number Chemical Minimum
Concentration
(Qualifier)
Maximum
Concentration
(Qualifier)
Units Location of
Maximum
Concentration
Detection
Frequency
Range of
Detection
Limits
Concentration
Used for
Screening
Background
Value
Screening Toxicity Value
(Screening
Level) (n/c)
Potential
ARAR/TBC
Value
Potential
ARAR/TBC
Source
COPC Flag
(Y/N)
Rationale for
Selection or
Deletion
130 SG-3 67-64-1 Acetone ug/m3
1.5 SG-3 71-43-2 Benzene ug/m3
40 SG-3 67-66-3 Chloroform ug/m3
16 SG-3 100-41-4 Ethylbenzene ug/m3
18 SG-3 109-99-9 ~Tetrahydrofuran J ug/m3
4.4 SG-3 142-82-5 Heptane, N-ug/m3
5.7 SG-3 67-63-0 Isopropanol J ug/m3
22 SG-3 78-93-3 Methyl Ethyl Ketone (2-Butanone)J ug/m3
20 SG-3 108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone)ug/m3
370 SG-3 127-18-4 Tetrachloroethylene ug/m3
34 SG-3 108-88-3 Toluene ug/m3
1.5 SG-3 79-01-6 Trichloroethylene ug/m3
2.4 SG-3 75-69-4 Trichlorofluoromethane J ug/m3
78 SG-3 1330-20-7 Xylenes ug/m3
Input Form 2D
Soil Gas Exposure Point Concentration Table
Maximum detected concentrations in soil gas points at the Site
North Carolina DEQ Risk Calculator
Risk for Individual Pathways Output Form 1A
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: BPN 24017-20-092
Exposure Unit ID: SG-3
Receptor Pathway Carcinogenic
Risk Hazard Index Risk exceeded?
Soil NC NC NC
Groundwater Use*NC NC NC
Soil NC NC NC
Groundwater Use*NC NC NC
Construction Worker Soil NC NC NC
Soil NC NC NC
Surface Water*NC NC NC
Receptor Pathway Carcinogenic
Risk Hazard Index Risk exceeded?
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air 1.2E-05 3.2E-01 NO
Indoor Air NC NC NC
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air 8.8E-07 2.6E-02 NO
Indoor Air NC NC NC
Pathway Source
Source Soil NC
Source Groundwater NC
Source Soil NC
Source Groundwater NC
3. NM = Not Modeled
4. NC = Pathway not complete
2. * = If concentrations in groundwater exceed the NC 2L Standards or IMAC, or concentrations in surface water exceed the
NC 2B Standards, appropriate remediation and/or institutional control measures will be necessary to be eligible for a risk-based
closure.
Surface Water Exceedence of 2B at Receptor?
Exceedence of 2B at Receptor?
VAPOR INTRUSION CALCULATORS
Resident
Non-Residential Worker
CONTAMINANT MIGRATION CALCULATORS
Target Receptor Concentrations Exceeded?
Groundwater Exceedence of 2L at Receptor?
Exceedence of 2L at Receptor?
1. If lead concentrations were entered in the exposure point concentration tables, see the individual calculator sheets for lead
concentrations in comparison to screening levels. Note that lead is not included in cumulative risk calculations.
Notes:
DIRECT CONTACT SOIL AND WATER CALCULATORS
Resident
Non-Residential Worker
Recreator/Trespasser
North Carolina DEQ Risk Calculator
DEQ Risk Calculator - Vapor Intrusion - Resident Soil Gas to Indoor Air
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: BPN 24017-20-092
Exposure Unit ID: SG-3
CAS #Chemical Name:
Soil Gas
Concentration
(ug/m3)
Calculated Indoor Air Concentration
(ug/m3)
Target Indoor
Air Conc. for
Carcinogens @
TCR = 1E-06
Target Indoor Air
Conc. for Non-
Carcinogens @
THQ = 0.2
Calculated Carcinogenic Risk
Calculated Non-Carcinogenic Hazard Quotient
67-64-1 Acetone 130 3.9 -6.5E+03 1.2E-04
71-43-2 Benzene 1.5 0.045 3.6E-01 6.3E+00 1.3E-07 1.4E-03
67-66-3 Chloroform 40 1.2 1.2E-01 2.0E+01 9.8E-06 1.2E-02
100-41-4 Ethylbenzene 16 0.48 1.1E+00 2.1E+02 4.3E-07 4.6E-04
142-82-5 Heptane, N-4.4 0.132 -8.3E+01 3.2E-04
78-93-3 Methyl Ethyl Ketone (2-Butanone)22 0.66 -1.0E+03 1.3E-04
115-07-1 Propylene -6.3E+02
127-18-4 Tetrachloroethylene 370 11.1 1.1E+01 8.3E+00 1.0E-06 2.7E-01108-88-3 Toluene 34 1.02 -1.0E+03 2.0E-04
79-01-6 Trichloroethylene 1.5 0.045 4.8E-01 4.2E-01 9.4E-08 2.2E-02
75-69-4 Trichlorofluoromethane 2.4 0.072 --
1330-20-7 Xylenes 78 2.34 -2.1E+01 2.2E-02
Cumulative:1.2E-05 3.2E-01
All concentrations are in ug/m3
Output Form 3B
Carcinogenic risk and hazard quotient cells highlighted in orange are associated with non-volatile chemicals. Since these chemicals do not pose a vapor intrusion
risk, no risk values are calculated for these chemicals.
North Carolina DEQ Risk Calculator
DEQ Risk Calculator - Vapor Intrusion - Non-Residential Worker Soil Gas to Indoor Air
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: BPN 24017-20-092
Exposure Unit ID: SG-3
CAS #Chemical Name:
Soil Gas
Concentration
(ug/m3)
Calculated
Indoor Air
Concentration
(ug/m3)
Target Indoor Air Conc. for Carcinogens @ TCR = 1E-06
Target Indoor Air Conc. for Non-Carcinogens @ THQ = 0.2
Calculated
Carcinogenic
Risk
Calculated
Non-
Carcinogenic
Hazard
Quotient
67-64-1 Acetone 130 1.3 -2.7E+04 9.6E-06
71-43-2 Benzene 1.5 0.015 1.6E+00 2.6E+01 9.5E-09 1.1E-0467-66-3 Chloroform 40 0.4 5.3E-01 8.6E+01 7.5E-07 9.3E-04100-41-4 Ethylbenzene 16 0.16 4.9E+00 8.8E+02 3.3E-08 3.7E-05109-99-9 ~Tetrahydrofuran 18 0.18 -1.8E+03 2.1E-05
142-82-5 Heptane, N-4.4 0.044 -3.5E+02 2.5E-05
110-54-3 Hexane, N--6.1E+02
67-63-0 Isopropanol 5.7 0.057 -1.8E+02 6.5E-05
78-93-3 Methyl Ethyl Ketone (2-Butanone)22 0.22 -4.4E+03 1.0E-05
108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone)20 0.2 -2.6E+03 1.5E-05
91-20-3 ~Naphthalene 3.6E-01 2.6E+00
115-07-1 Propylene -2.6E+03
100-42-5 Styrene -8.8E+02
127-18-4 Tetrachloroethylene 370 3.7 4.7E+01 3.5E+01 7.8E-08 2.1E-02
108-88-3 Toluene 34 0.34 -4.4E+03 1.6E-0579-01-6 Trichloroethylene 1.5 0.015 3.0E+00 1.8E+00 5.0E-09 1.7E-0375-69-4 Trichlorofluoromethane 2.4 0.024 --95-63-6 Trimethylbenzene, 1,2,4--5.3E+01
108-67-8 Trimethylbenzene, 1,3,5--5.3E+01
1330-20-7 Xylenes 78 0.78 -8.8E+01 1.8E-03
Cumulative:8.8E-07 2.6E-02
All concentrations are in ug/m3
Output Form 3E
Carcinogenic risk and hazard quotient cells highlighted in orange are associated with non-volatile chemicals. Since these chemicals do not pose a vapor intrusion
risk, no risk values are calculated for these chemicals.
North Carolina DEQ Risk Calculator
Version Date:
Basis:
Site Name:
Site Address:
DEQ Section:
Site ID:
Exposure Unit ID:
Submittal Date:
Reviewed By:
SG-4
North Carolina Department of Environmental Quality
Risk Calculator
Cameron Village Condominiums
1801 Cameron Street, Raleigh, Wake County, North Carolina
Brownfields Program
BPN 24017-20-092
July 2020
May 2020 EPA RSL Table
Prepared By:Hart & Hickman, PC
3921 Sunset Ridge Road, Suite 301, Raleigh, North Carolina 27529
North Carolina DEQ Risk Calculator
Complete Exposure Pathways
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: BPN 24017-20-092
Exposure Unit ID: SG-4
Note: Risk output will only be calculated for complete exposure pathways.
Receptor Pathway
Check box if
pathway
complete
Soil
Groundwater Use
Soil
Groundwater Use
Construction Worker Soil
Soil
Surface Water
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Source Soil
Source Groundwater
Source Soil
Source Groundwater
Resident
Non-Residential Worker
CONTAMINANT MIGRATION PATHWAYS
Groundwater
Surface Water
Input Form 1A
VAPOR INTRUSION PATHWAYS
DIRECT CONTACT SOIL AND WATER PATHWAYS
Resident
Non-Residential Worker
Recreator/Trespasser
North Carolina DEQ Risk Calculator
Exposure Point Concentrations
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: BPN 24017-20-092
Exposure Unit ID: SG-4
Description of Exposure Point Concentration Selection:
Note: Chemicals highlighted in orange are non-volatile chemicals. Since these chemicals do not pose a vapor intrusion risk, no risk values are calculated for these chemicals.
Exposure Point Concentration
(ug/m3)
Notes:CAS Number Chemical Minimum Concentration (Qualifier)
Maximum Concentration (Qualifier)
Units Location of Maximum Concentration
Detection Frequency
Range of Detection Limits
Concentration Used for Screening
Background Value
Screening Toxicity Value (Screening Level) (n/c)
Potential ARAR/TBC Value
Potential ARAR/TBC Source
COPC Flag (Y/N)
Rationale for Selection or Deletion
45 SG-4 67-64-1 Acetone ug/m3
2.6 SG-4 71-43-2 Benzene ug/m3
3.1 SG-4 67-66-3 Chloroform ug/m3
10 SG-4 100-41-4 Ethylbenzene ug/m3
4 SG-4 109-99-9 ~Tetrahydrofuran J ug/m3
20 SG-4 142-82-5 Heptane, N-ug/m3
14 SG-4 67-63-0 Isopropanol J ug/m3
7.8 SG-4 78-93-3 Methyl Ethyl Ketone (2-Butanone)J ug/m3
5.1 SG-4 108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone)ug/m3
3.5 SG-4 91-20-3 ~Naphthalene ug/m3
21 SG-4 115-07-1 Propylene ug/m3
5.4 SG-4 127-18-4 Tetrachloroethylene ug/m3
39 SG-4 108-88-3 Toluene ug/m3
0.8 SG-4 79-01-6 Trichloroethylene J ug/m3
43 SG-4 1330-20-7 Xylenes ug/m3
Input Form 2D
Soil Gas Exposure Point Concentration Table
Maximum detected concentrations in soil gas points at the Site
North Carolina DEQ Risk Calculator
Risk for Individual Pathways Output Form 1A
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: BPN 24017-20-092
Exposure Unit ID: SG-4
Receptor Pathway Carcinogenic
Risk Hazard Index Risk exceeded?
Soil NC NC NC
Groundwater Use*NC NC NC
Soil NC NC NC
Groundwater Use*NC NC NC
Construction Worker Soil NC NC NC
Soil NC NC NC
Surface Water*NC NC NC
Receptor Pathway Carcinogenic Risk Hazard Index Risk exceeded?
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air 1.3E-06 3.3E-02 NO
Indoor Air NC NC NC
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air 2.0E-07 5.5E-03 NO
Indoor Air NC NC NC
Pathway Source
Source Soil NC
Source Groundwater NC
Source Soil NC
Source Groundwater NC
3. NM = Not Modeled
4. NC = Pathway not complete
2. * = If concentrations in groundwater exceed the NC 2L Standards or IMAC, or concentrations in surface water exceed the
NC 2B Standards, appropriate remediation and/or institutional control measures will be necessary to be eligible for a risk-based
closure.
Surface Water Exceedence of 2B at Receptor?
Exceedence of 2B at Receptor?
VAPOR INTRUSION CALCULATORS
Resident
Non-Residential Worker
CONTAMINANT MIGRATION CALCULATORS
Target Receptor Concentrations Exceeded?
Groundwater Exceedence of 2L at Receptor?
Exceedence of 2L at Receptor?
1. If lead concentrations were entered in the exposure point concentration tables, see the individual calculator sheets for lead
concentrations in comparison to screening levels. Note that lead is not included in cumulative risk calculations.
Notes:
DIRECT CONTACT SOIL AND WATER CALCULATORS
Resident
Non-Residential Worker
Recreator/Trespasser
North Carolina DEQ Risk Calculator
DEQ Risk Calculator - Vapor Intrusion - Resident Soil Gas to Indoor Air
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: BPN 24017-20-092
Exposure Unit ID: SG-4
CAS #Chemical Name:
Soil Gas Concentration
(ug/m3)
Calculated
Indoor Air
Concentration
(ug/m3)
Target Indoor Air Conc. for Carcinogens @ TCR = 1E-06
Target Indoor Air Conc. for Non-Carcinogens @ THQ = 0.2
Calculated
Carcinogenic
Risk
Calculated
Non-
Carcinogenic
Hazard
Quotient
67-64-1 Acetone 45 1.35 -6.5E+03 4.2E-05
71-43-2 Benzene 2.6 0.078 3.6E-01 6.3E+00 2.2E-07 2.5E-03
67-66-3 Chloroform 3.1 0.093 1.2E-01 2.0E+01 7.6E-07 9.1E-04
100-41-4 Ethylbenzene 10 0.3 1.1E+00 2.1E+02 2.7E-07 2.9E-04
142-82-5 Heptane, N-20 0.6 -8.3E+01 1.4E-03
78-93-3 Methyl Ethyl Ketone (2-Butanone)7.8 0.234 -1.0E+03 4.5E-05
115-07-1 Propylene 21 0.63 -6.3E+02 2.0E-04
127-18-4 Tetrachloroethylene 5.4 0.162 1.1E+01 8.3E+00 1.5E-08 3.9E-03
108-88-3 Toluene 39 1.17 -1.0E+03 2.2E-04
79-01-6 Trichloroethylene 0.8 0.024 4.8E-01 4.2E-01 5.0E-08 1.2E-02
75-69-4 Trichlorofluoromethane --
1330-20-7 Xylenes 43 1.29 -2.1E+01 1.2E-02
Cumulative:1.3E-06 3.3E-02
All concentrations are in ug/m3
Output Form 3B
Carcinogenic risk and hazard quotient cells highlighted in orange are associated with non-volatile chemicals. Since these chemicals do not pose a vapor intrusion risk, no risk values are calculated for these chemicals.
North Carolina DEQ Risk Calculator
DEQ Risk Calculator - Vapor Intrusion - Non-Residential Worker Soil Gas to Indoor Air
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: BPN 24017-20-092
Exposure Unit ID: SG-4
CAS #Chemical Name:
Soil Gas
Concentration
(ug/m3)
Calculated
Indoor Air Concentration
(ug/m3)
Target Indoor
Air Conc. for
Carcinogens @
TCR = 1E-06
Target Indoor Air
Conc. for Non-
Carcinogens @
THQ = 0.2
Calculated Carcinogenic Risk
Calculated Non-Carcinogenic Hazard
Quotient
67-64-1 Acetone 45 0.45 -2.7E+04 3.3E-06
71-43-2 Benzene 2.6 0.026 1.6E+00 2.6E+01 1.7E-08 2.0E-04
67-66-3 Chloroform 3.1 0.031 5.3E-01 8.6E+01 5.8E-08 7.2E-05
100-41-4 Ethylbenzene 10 0.1 4.9E+00 8.8E+02 2.0E-08 2.3E-05
109-99-9 ~Tetrahydrofuran 4 0.04 -1.8E+03 4.6E-06
142-82-5 Heptane, N-20 0.2 -3.5E+02 1.1E-04
110-54-3 Hexane, N--6.1E+0267-63-0 Isopropanol 14 0.14 -1.8E+02 1.6E-04
78-93-3 Methyl Ethyl Ketone (2-Butanone)7.8 0.078 -4.4E+03 3.6E-06
108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone)5.1 0.051 -2.6E+03 3.9E-06
91-20-3 ~Naphthalene 3.5 0.035 3.6E-01 2.6E+00 9.7E-08 2.7E-03115-07-1 Propylene 21 0.21 -2.6E+03 1.6E-05100-42-5 Styrene -8.8E+02127-18-4 Tetrachloroethylene 5.4 0.054 4.7E+01 3.5E+01 1.1E-09 3.1E-04
108-88-3 Toluene 39 0.39 -4.4E+03 1.8E-05
79-01-6 Trichloroethylene 0.8 0.008 3.0E+00 1.8E+00 2.7E-09 9.1E-04
75-69-4 Trichlorofluoromethane --
95-63-6 Trimethylbenzene, 1,2,4--5.3E+01
108-67-8 Trimethylbenzene, 1,3,5--5.3E+011330-20-7 Xylenes 43 0.43 -8.8E+01 9.8E-04
Cumulative:2.0E-07 5.5E-03
All concentrations are in ug/m3
Output Form 3E
Carcinogenic risk and hazard quotient cells highlighted in orange are associated with non-volatile chemicals. Since these chemicals do not pose a vapor intrusion
risk, no risk values are calculated for these chemicals.
North Carolina DEQ Risk Calculator
Version Date:
Basis:
Site Name:
Site Address:
DEQ Section:
Site ID:
Exposure Unit ID:
Submittal Date:
Reviewed By:
SG-5
North Carolina Department of Environmental Quality
Risk Calculator
Cameron Village Condominiums
1801 Cameron Street, Raleigh, Wake County, North Carolina
Brownfields Program
BPN 24017-20-092
July 2020
May 2020 EPA RSL Table
Prepared By:Hart & Hickman, PC
3921 Sunset Ridge Road, Suite 301, Raleigh, North Carolina 27529
North Carolina DEQ Risk Calculator
Complete Exposure Pathways
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: BPN 24017-20-092
Exposure Unit ID: SG-5
Note: Risk output will only be calculated for complete exposure pathways.
Receptor Pathway
Check box if
pathway
complete
Soil
Groundwater Use
Soil
Groundwater Use
Construction Worker Soil
Soil
Surface Water
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Source Soil
Source Groundwater
Source Soil
Source Groundwater
Resident
Non-Residential Worker
CONTAMINANT MIGRATION PATHWAYS
Groundwater
Surface Water
Input Form 1A
VAPOR INTRUSION PATHWAYS
DIRECT CONTACT SOIL AND WATER PATHWAYS
Resident
Non-Residential Worker
Recreator/Trespasser
North Carolina DEQ Risk Calculator
Exposure Point Concentrations
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: BPN 24017-20-092
Exposure Unit ID: SG-5
Description of Exposure Point Concentration Selection:
Note: Chemicals highlighted in orange are non-volatile chemicals. Since these chemicals do not pose a vapor intrusion risk, no risk values are calculated for these chemicals.
Exposure Point
Concentration
(ug/m3)
Notes:CAS Number Chemical Minimum
Concentration
(Qualifier)
Maximum
Concentration
(Qualifier)
Units Location of
Maximum
Concentration
Detection
Frequency
Range of
Detection
Limits
Concentration
Used for
Screening
Background
Value
Screening Toxicity Value
(Screening
Level) (n/c)
Potential
ARAR/TBC
Value
Potential
ARAR/TBC
Source
COPC Flag
(Y/N)
Rationale for
Selection or
Deletion
3.6 SG-5 71-43-2 Benzene ug/m3
15 SG-5 100-41-4 Ethylbenzene ug/m3
7.2 SG-5 109-99-9 ~Tetrahydrofuran ug/m3
12 SG-5 142-82-5 Heptane, N-ug/m3
10 SG-5 110-54-3 Hexane, N-J ug/m3
9 SG-5 78-93-3 Methyl Ethyl Ketone (2-Butanone)J ug/m3
9.8 SG-5 108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone)ug/m3
2.9 SG-5 91-20-3 ~Naphthalene ug/m3
9.6 SG-5 127-18-4 Tetrachloroethylene ug/m3
39 SG-5 108-88-3 Toluene ug/m3
71 SG-5 1330-20-7 Xylenes ug/m3
Input Form 2D
Soil Gas Exposure Point Concentration Table
Maximum detected concentrations in soil gas points at the Site
North Carolina DEQ Risk Calculator
Risk for Individual Pathways Output Form 1A
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: BPN 24017-20-092
Exposure Unit ID: SG-5
Receptor Pathway Carcinogenic
Risk Hazard Index Risk exceeded?
Soil NC NC NC
Groundwater Use*NC NC NC
Soil NC NC NC
Groundwater Use*NC NC NC
Construction Worker Soil NC NC NC
Soil NC NC NC
Surface Water*NC NC NC
Receptor Pathway Carcinogenic
Risk Hazard Index Risk exceeded?
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air 7.3E-07 3.2E-02 NO
Indoor Air NC NC NC
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air 1.4E-07 4.8E-03 NO
Indoor Air NC NC NC
Pathway Source
Source Soil NC
Source Groundwater NC
Source Soil NC
Source Groundwater NC
3. NM = Not Modeled
4. NC = Pathway not complete
2. * = If concentrations in groundwater exceed the NC 2L Standards or IMAC, or concentrations in surface water exceed the
NC 2B Standards, appropriate remediation and/or institutional control measures will be necessary to be eligible for a risk-based
closure.
Surface Water Exceedence of 2B at Receptor?
Exceedence of 2B at Receptor?
VAPOR INTRUSION CALCULATORS
Resident
Non-Residential Worker
CONTAMINANT MIGRATION CALCULATORS
Target Receptor Concentrations Exceeded?
Groundwater Exceedence of 2L at Receptor?
Exceedence of 2L at Receptor?
1. If lead concentrations were entered in the exposure point concentration tables, see the individual calculator sheets for lead
concentrations in comparison to screening levels. Note that lead is not included in cumulative risk calculations.
Notes:
DIRECT CONTACT SOIL AND WATER CALCULATORS
Resident
Non-Residential Worker
Recreator/Trespasser
North Carolina DEQ Risk Calculator
DEQ Risk Calculator - Vapor Intrusion - Resident Soil Gas to Indoor Air
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: BPN 24017-20-092
Exposure Unit ID: SG-5
CAS #Chemical Name:
Soil Gas
Concentration
(ug/m3)
Calculated Indoor Air Concentration
(ug/m3)
Target Indoor
Air Conc. for
Carcinogens @
TCR = 1E-06
Target Indoor Air
Conc. for Non-
Carcinogens @
THQ = 0.2
Calculated Carcinogenic Risk
Calculated Non-Carcinogenic Hazard Quotient
67-64-1 Acetone -6.5E+03
71-43-2 Benzene 3.6 0.108 3.6E-01 6.3E+00 3.0E-07 3.5E-03
67-66-3 Chloroform 1.2E-01 2.0E+01
100-41-4 Ethylbenzene 15 0.45 1.1E+00 2.1E+02 4.0E-07 4.3E-04
142-82-5 Heptane, N-12 0.36 -8.3E+01 8.6E-04
78-93-3 Methyl Ethyl Ketone (2-Butanone)9 0.27 -1.0E+03 5.2E-05
115-07-1 Propylene -6.3E+02
127-18-4 Tetrachloroethylene 9.6 0.288 1.1E+01 8.3E+00 2.7E-08 6.9E-03
108-88-3 Toluene 39 1.17 -1.0E+03 2.2E-04
79-01-6 Trichloroethylene 4.8E-01 4.2E-01
75-69-4 Trichlorofluoromethane --
1330-20-7 Xylenes 71 2.13 -2.1E+01 2.0E-02
Cumulative:7.3E-07 3.2E-02
All concentrations are in ug/m3
Output Form 3B
Carcinogenic risk and hazard quotient cells highlighted in orange are associated with non-volatile chemicals. Since these chemicals do not pose a vapor intrusion
risk, no risk values are calculated for these chemicals.
North Carolina DEQ Risk Calculator
DEQ Risk Calculator - Vapor Intrusion - Non-Residential Worker Soil Gas to Indoor Air
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: BPN 24017-20-092
Exposure Unit ID: SG-5
CAS #Chemical Name:
Soil Gas
Concentration
(ug/m3)
Calculated
Indoor Air
Concentration
(ug/m3)
Target Indoor Air Conc. for Carcinogens @ TCR = 1E-06
Target Indoor Air Conc. for Non-Carcinogens @ THQ = 0.2
Calculated
Carcinogenic
Risk
Calculated
Non-
Carcinogenic
Hazard
Quotient
67-64-1 Acetone -2.7E+04
71-43-2 Benzene 3.6 0.036 1.6E+00 2.6E+01 2.3E-08 2.7E-0467-66-3 Chloroform 5.3E-01 8.6E+01100-41-4 Ethylbenzene 15 0.15 4.9E+00 8.8E+02 3.1E-08 3.4E-05109-99-9 ~Tetrahydrofuran 7.2 0.072 -1.8E+03 8.2E-06
142-82-5 Heptane, N-12 0.12 -3.5E+02 6.8E-05
110-54-3 Hexane, N-10 0.1 -6.1E+02 3.3E-05
67-63-0 Isopropanol -1.8E+02
78-93-3 Methyl Ethyl Ketone (2-Butanone)9 0.09 -4.4E+03 4.1E-06
108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone)9.8 0.098 -2.6E+03 7.5E-06
91-20-3 ~Naphthalene 2.9 0.029 3.6E-01 2.6E+00 8.0E-08 2.2E-03
115-07-1 Propylene -2.6E+03
100-42-5 Styrene -8.8E+02
127-18-4 Tetrachloroethylene 9.6 0.096 4.7E+01 3.5E+01 2.0E-09 5.5E-04
108-88-3 Toluene 39 0.39 -4.4E+03 1.8E-0579-01-6 Trichloroethylene 3.0E+00 1.8E+0075-69-4 Trichlorofluoromethane --95-63-6 Trimethylbenzene, 1,2,4--5.3E+01
108-67-8 Trimethylbenzene, 1,3,5--5.3E+01
1330-20-7 Xylenes 71 0.71 -8.8E+01 1.6E-03
Cumulative:1.4E-07 4.8E-03
All concentrations are in ug/m3
Output Form 3E
Carcinogenic risk and hazard quotient cells highlighted in orange are associated with non-volatile chemicals. Since these chemicals do not pose a vapor intrusion
risk, no risk values are calculated for these chemicals.
North Carolina DEQ Risk Calculator
Version Date:
Basis:
Site Name:
Site Address:
DEQ Section:
Site ID:
Exposure Unit ID:
Submittal Date:
Reviewed By:
SG-6
North Carolina Department of Environmental Quality
Risk Calculator
Cameron Village Condominiums
1801 Cameron Street, Raleigh, Wake County, North Carolina
Brownfields Program
BPN 24017-20-092
July 2020
May 2020 EPA RSL Table
Prepared By:Hart & Hickman, PC
3921 Sunset Ridge Road, Suite 301, Raleigh, North Carolina 27529
North Carolina DEQ Risk Calculator
Complete Exposure Pathways
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: BPN 24017-20-092
Exposure Unit ID: SG-6
Note: Risk output will only be calculated for complete exposure pathways.
Receptor Pathway
Check box if
pathway
complete
Soil
Groundwater Use
Soil
Groundwater Use
Construction Worker Soil
Soil
Surface Water
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Source Soil
Source Groundwater
Source Soil
Source Groundwater
Resident
Non-Residential Worker
CONTAMINANT MIGRATION PATHWAYS
Groundwater
Surface Water
Input Form 1A
VAPOR INTRUSION PATHWAYS
DIRECT CONTACT SOIL AND WATER PATHWAYS
Resident
Non-Residential Worker
Recreator/Trespasser
North Carolina DEQ Risk Calculator
Exposure Point Concentrations
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: BPN 24017-20-092
Exposure Unit ID: SG-6
Description of Exposure Point Concentration Selection:
Note: Chemicals highlighted in orange are non-volatile chemicals. Since these chemicals do not pose a vapor intrusion risk, no risk values are calculated for these chemicals.
Exposure Point Concentration
(ug/m3)
Notes:CAS Number Chemical Minimum Concentration (Qualifier)
Maximum Concentration (Qualifier)
Units Location of Maximum Concentration
Detection Frequency
Range of Detection Limits
Concentration Used for Screening
Background Value
Screening Toxicity Value (Screening Level) (n/c)
Potential ARAR/TBC Value
Potential ARAR/TBC Source
COPC Flag (Y/N)
Rationale for Selection or Deletion
170 SG-6 67-64-1 Acetone ug/m3
4.9 SG-6 71-43-2 Benzene ug/m3
17 SG-6 100-41-4 Ethylbenzene ug/m3
24 SG-6 109-99-9 ~Tetrahydrofuran ug/m3
11 SG-6 142-82-5 Heptane, N-ug/m3
27 SG-6 78-93-3 Methyl Ethyl Ketone (2-Butanone)ug/m3
16 SG-6 108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone)ug/m3
12 SG-6 127-18-4 Tetrachloroethylene ug/m3
52 SG-6 108-88-3 Toluene ug/m3
74 SG-6 1330-20-7 Xylenes ug/m3
Input Form 2D
Soil Gas Exposure Point Concentration Table
Maximum detected concentrations in soil gas points at the Site
North Carolina DEQ Risk Calculator
Risk for Individual Pathways Output Form 1A
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: BPN 24017-20-092
Exposure Unit ID: SG-6
Receptor Pathway Carcinogenic
Risk Hazard Index Risk exceeded?
Soil NC NC NC
Groundwater Use*NC NC NC
Soil NC NC NC
Groundwater Use*NC NC NC
Construction Worker Soil NC NC NC
Soil NC NC NC
Surface Water*NC NC NC
Receptor Pathway Carcinogenic Risk Hazard Index Risk exceeded?
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air 9.0E-07 3.7E-02 NO
Indoor Air NC NC NC
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air 6.8E-08 2.9E-03 NO
Indoor Air NC NC NC
Pathway Source
Source Soil NC
Source Groundwater NC
Source Soil NC
Source Groundwater NC
3. NM = Not Modeled
4. NC = Pathway not complete
2. * = If concentrations in groundwater exceed the NC 2L Standards or IMAC, or concentrations in surface water exceed the
NC 2B Standards, appropriate remediation and/or institutional control measures will be necessary to be eligible for a risk-based
closure.
Surface Water Exceedence of 2B at Receptor?
Exceedence of 2B at Receptor?
VAPOR INTRUSION CALCULATORS
Resident
Non-Residential Worker
CONTAMINANT MIGRATION CALCULATORS
Target Receptor Concentrations Exceeded?
Groundwater Exceedence of 2L at Receptor?
Exceedence of 2L at Receptor?
1. If lead concentrations were entered in the exposure point concentration tables, see the individual calculator sheets for lead
concentrations in comparison to screening levels. Note that lead is not included in cumulative risk calculations.
Notes:
DIRECT CONTACT SOIL AND WATER CALCULATORS
Resident
Non-Residential Worker
Recreator/Trespasser
North Carolina DEQ Risk Calculator
DEQ Risk Calculator - Vapor Intrusion - Resident Soil Gas to Indoor Air
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: BPN 24017-20-092
Exposure Unit ID: SG-6
CAS #Chemical Name:
Soil Gas Concentration
(ug/m3)
Calculated
Indoor Air
Concentration
(ug/m3)
Target Indoor Air Conc. for Carcinogens @ TCR = 1E-06
Target Indoor Air Conc. for Non-Carcinogens @ THQ = 0.2
Calculated
Carcinogenic
Risk
Calculated
Non-
Carcinogenic
Hazard
Quotient
67-64-1 Acetone 170 5.1 -6.5E+03 1.6E-04
71-43-2 Benzene 4.9 0.147 3.6E-01 6.3E+00 4.1E-07 4.7E-03
67-66-3 Chloroform 1.2E-01 2.0E+01
100-41-4 Ethylbenzene 17 0.51 1.1E+00 2.1E+02 4.5E-07 4.9E-04
142-82-5 Heptane, N-11 0.33 -8.3E+01 7.9E-04
78-93-3 Methyl Ethyl Ketone (2-Butanone)27 0.81 -1.0E+03 1.6E-04
115-07-1 Propylene -6.3E+02
127-18-4 Tetrachloroethylene 12 0.36 1.1E+01 8.3E+00 3.3E-08 8.6E-03
108-88-3 Toluene 52 1.56 -1.0E+03 3.0E-04
79-01-6 Trichloroethylene 4.8E-01 4.2E-01
75-69-4 Trichlorofluoromethane --
1330-20-7 Xylenes 74 2.22 -2.1E+01 2.1E-02
Cumulative:9.0E-07 3.7E-02
All concentrations are in ug/m3
Output Form 3B
Carcinogenic risk and hazard quotient cells highlighted in orange are associated with non-volatile chemicals. Since these chemicals do not pose a vapor intrusion risk, no risk values are calculated for these chemicals.
North Carolina DEQ Risk Calculator
DEQ Risk Calculator - Vapor Intrusion - Non-Residential Worker Soil Gas to Indoor Air
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: BPN 24017-20-092
Exposure Unit ID: SG-6
CAS #Chemical Name:
Soil Gas
Concentration
(ug/m3)
Calculated
Indoor Air Concentration
(ug/m3)
Target Indoor
Air Conc. for
Carcinogens @
TCR = 1E-06
Target Indoor Air
Conc. for Non-
Carcinogens @
THQ = 0.2
Calculated Carcinogenic Risk
Calculated Non-Carcinogenic Hazard
Quotient
67-64-1 Acetone 170 1.7 -2.7E+04 1.3E-05
71-43-2 Benzene 4.9 0.049 1.6E+00 2.6E+01 3.1E-08 3.7E-04
67-66-3 Chloroform 5.3E-01 8.6E+01
100-41-4 Ethylbenzene 17 0.17 4.9E+00 8.8E+02 3.5E-08 3.9E-05
109-99-9 ~Tetrahydrofuran 24 0.24 -1.8E+03 2.7E-05
142-82-5 Heptane, N-11 0.11 -3.5E+02 6.3E-05
110-54-3 Hexane, N--6.1E+0267-63-0 Isopropanol -1.8E+02
78-93-3 Methyl Ethyl Ketone (2-Butanone)27 0.27 -4.4E+03 1.2E-05
108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone)16 0.16 -2.6E+03 1.2E-05
91-20-3 ~Naphthalene 3.6E-01 2.6E+00115-07-1 Propylene -2.6E+03100-42-5 Styrene -8.8E+02127-18-4 Tetrachloroethylene 12 0.12 4.7E+01 3.5E+01 2.5E-09 6.8E-04
108-88-3 Toluene 52 0.52 -4.4E+03 2.4E-05
79-01-6 Trichloroethylene 3.0E+00 1.8E+00
75-69-4 Trichlorofluoromethane --
95-63-6 Trimethylbenzene, 1,2,4--5.3E+01
108-67-8 Trimethylbenzene, 1,3,5--5.3E+011330-20-7 Xylenes 74 0.74 -8.8E+01 1.7E-03
Cumulative:6.8E-08 2.9E-03
All concentrations are in ug/m3
Output Form 3E
Carcinogenic risk and hazard quotient cells highlighted in orange are associated with non-volatile chemicals. Since these chemicals do not pose a vapor intrusion
risk, no risk values are calculated for these chemicals.
North Carolina DEQ Risk Calculator
Version Date:
Basis:
Site Name:
Site Address:
DEQ Section:
Site ID:
Exposure Unit ID:
Submittal Date:
Reviewed By:
Worst Case Scenario
North Carolina Department of Environmental Quality
Risk Calculator
Cameron Village Condominiums
1801 Cameron Street, Raleigh, Wake County, North Carolina
Brownfields Program
BPN 24017-20-092
July 2020
May 2020 EPA RSL Table
Prepared By:Hart & Hickman, PC
3921 Sunset Ridge Road, Suite 301, Raleigh, North Carolina 27529
North Carolina DEQ Risk Calculator
Complete Exposure Pathways
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: BPN 24017-20-092
Exposure Unit ID: Worst Case Scenario
Note: Risk output will only be calculated for complete exposure pathways.
Receptor Pathway
Check box if
pathway
complete
Soil
Groundwater Use
Soil
Groundwater Use
Construction Worker Soil
Soil
Surface Water
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Source Soil
Source Groundwater
Source Soil
Source Groundwater
Resident
Non-Residential Worker
CONTAMINANT MIGRATION PATHWAYS
Groundwater
Surface Water
Input Form 1A
VAPOR INTRUSION PATHWAYS
DIRECT CONTACT SOIL AND WATER PATHWAYS
Resident
Non-Residential Worker
Recreator/Trespasser
North Carolina DEQ Risk Calculator
Exposure Point Concentrations
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: BPN 24017-20-092
Exposure Unit ID: Worst Case Scenario
Description of Exposure Point Concentration Selection:
Note: Chemicals highlighted in orange are non-volatile chemicals. Since these chemicals do not pose a vapor intrusion risk, no risk values are calculated for these chemicals.
Exposure Point Concentration
(ug/m3)
Notes:CAS Number Chemical Minimum Concentration (Qualifier)
Maximum Concentration (Qualifier)
Units Location of Maximum Concentration
Detection Frequency
Range of Detection Limits
Concentration Used for Screening
Background Value
Screening Toxicity Value (Screening Level) (n/c)
Potential ARAR/TBC Value
Potential ARAR/TBC Source
COPC Flag (Y/N)
Rationale for Selection or Deletion
170 SG-6 67-64-1 Acetone ug/m3
4.9 SG-6 71-43-2 Benzene ug/m3
0.306 SG-1S 106-99-0 Butadiene, 1,3-J ug/m3
1.11 SG-1S 75-15-0 Carbon Disulfide ug/m3
0.544 SG-1S 108-90-7 Chlorobenzene ug/m3
40 SG-3 67-66-3 Chloroform ug/m3
0.218 SG-1S 74-87-3 Chloromethane ug/m3
5.79 SG-1S 110-82-7 Cyclohexane ug/m3
2 SG-1S 75-71-8 Dichlorodifluoromethane ug/m3
0.36 SG-1S 123-91-1 Dioxane, 1,4-ug/m3
1.98 SG-1S 141-78-6 Ethyl Acetate ug/m3
53 Dup-1 100-41-4 Ethylbenzene ug/m3
24 SG-6 109-99-9 ~Tetrahydrofuran ug/m3
20 SG-4 142-82-5 Heptane, N-ug/m3
10 SG-5 110-54-3 Hexane, N-J ug/m3
0.761 SG-1S 591-78-6 Hexanone, 2-ug/m3
14 SG-4 67-63-0 Isopropanol J ug/m3
27 SG-6 78-93-3 Methyl Ethyl Ketone (2-Butanone)ug/m3
20 SG-3, Dup-1 108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone)ug/m3
0.645 SG-1S 75-09-2 Methylene Chloride ug/m3
4.66 SG-1S 91-20-3 ~Naphthalene ug/m3
21 SG-4 115-07-1 Propylene ug/m3
7.46 SG-1S 100-42-5 Styrene ug/m3
380 SG-2 127-18-4 Tetrachloroethylene ug/m3
120 Dup-1 108-88-3 Toluene ug/m3
2 Dup-1 79-01-6 Trichloroethylene ug/m3
3.55 SG-1S 75-69-4 Trichlorofluoromethane ug/m3
230 Dup-1 95-63-6 Trimethylbenzene, 1,2,4-ug/m3
100 Dup-1 108-67-8 Trimethylbenzene, 1,3,5-ug/m3
351 Dup-1 1330-20-7 Xylenes ug/m3
Input Form 2D
Soil Gas Exposure Point Concentration Table
Maximum detected concentrations in soil gas points at the Site.
North Carolina DEQ Risk Calculator
Risk for Individual Pathways Output Form 1A
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: BPN 24017-20-092
Exposure Unit ID: Worst Case Scenario
Receptor Pathway Carcinogenic
Risk Hazard Index Risk exceeded?
Soil NC NC NC
Groundwater Use*NC NC NC
Soil NC NC NC
Groundwater Use*NC NC NC
Construction Worker Soil NC NC NC
Soil NC NC NC
Surface Water*NC NC NC
Receptor Pathway Carcinogenic Risk Hazard Index Risk exceeded?
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air 1.5E-05 6.4E-01 NO
Indoor Air NC NC NC
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air 1.1E-06 5.1E-02 NO
Indoor Air NC NC NC
Pathway Source
Source Soil NC
Source Groundwater NC
Source Soil NC
Source Groundwater NC
3. NM = Not Modeled
4. NC = Pathway not complete
2. * = If concentrations in groundwater exceed the NC 2L Standards or IMAC, or concentrations in surface water exceed the
NC 2B Standards, appropriate remediation and/or institutional control measures will be necessary to be eligible for a risk-based
closure.
Surface Water Exceedence of 2B at Receptor?
Exceedence of 2B at Receptor?
VAPOR INTRUSION CALCULATORS
Resident
Non-Residential Worker
CONTAMINANT MIGRATION CALCULATORS
Target Receptor Concentrations Exceeded?
Groundwater Exceedence of 2L at Receptor?
Exceedence of 2L at Receptor?
1. If lead concentrations were entered in the exposure point concentration tables, see the individual calculator sheets for lead
concentrations in comparison to screening levels. Note that lead is not included in cumulative risk calculations.
Notes:
DIRECT CONTACT SOIL AND WATER CALCULATORS
Resident
Non-Residential Worker
Recreator/Trespasser
North Carolina DEQ Risk Calculator
DEQ Risk Calculator - Vapor Intrusion - Resident Soil Gas to Indoor Air
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: BPN 24017-20-092
Exposure Unit ID: Worst Case Scenario
CAS #Chemical Name:
Soil Gas Concentration
(ug/m3)
Calculated
Indoor Air
Concentration
(ug/m3)
Target Indoor Air Conc. for Carcinogens @ TCR = 1E-06
Target Indoor Air Conc. for Non-Carcinogens @ THQ = 0.2
Calculated
Carcinogenic
Risk
Calculated
Non-
Carcinogenic
Hazard
Quotient
67-64-1 Acetone 170 5.1 -6.5E+03 1.6E-04
71-43-2 Benzene 4.9 0.147 3.6E-01 6.3E+00 4.1E-07 4.7E-03
106-99-0 Butadiene, 1,3-0.306 0.00918 9.4E-02 4.2E-01 9.8E-08 4.4E-03
75-15-0 Carbon Disulfide 1.11 0.0333 -1.5E+02 4.6E-05
108-90-7 Chlorobenzene 0.544 0.01632 -1.0E+01 3.1E-04
67-66-3 Chloroform 40 1.2 1.2E-01 2.0E+01 9.8E-06 1.2E-02
74-87-3 Chloromethane 0.218 0.00654 -1.9E+01 7.0E-05
110-82-7 Cyclohexane 5.79 0.1737 -1.3E+03 2.8E-05
75-71-8 Dichlorodifluoromethane 2 0.06 -2.1E+01 5.8E-04
123-91-1 Dioxane, 1,4-0.36 0.0108 5.6E-01 6.3E+00 1.9E-08 3.5E-04
141-78-6 Ethyl Acetate 1.98 0.0594 -1.5E+01 8.1E-04
100-41-4 Ethylbenzene 53 1.59 1.1E+00 2.1E+02 1.4E-06 1.5E-03
109-99-9 ~Tetrahydrofuran 24 0.72 -4.2E+02 3.5E-04
142-82-5 Heptane, N-20 0.6 -8.3E+01 1.4E-03
110-54-3 Hexane, N-10 0.3 -1.5E+02 4.1E-04
591-78-6 Hexanone, 2-0.761 0.02283 -6.3E+00 7.3E-04
67-63-0 Isopropanol 14 0.42 -4.2E+01 2.0E-03
78-93-3 Methyl Ethyl Ketone (2-Butanone)27 0.81 -1.0E+03 1.6E-04
108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone)20 0.6 -6.3E+02 1.9E-04
75-09-2 Methylene Chloride 0.645 0.01935 1.0E+02 1.3E+02 1.9E-10 3.1E-05
91-20-3 ~Naphthalene 4.66 0.1398 8.3E-02 6.3E-01 1.7E-06 4.5E-02
115-07-1 Propylene 21 0.63 -6.3E+02 2.0E-04
100-42-5 Styrene 7.46 0.2238 -2.1E+02 2.1E-04
127-18-4 Tetrachloroethylene 380 11.4 1.1E+01 8.3E+00 1.1E-06 2.7E-01
108-88-3 Toluene 120 3.6 -1.0E+03 6.9E-04
79-01-6 Trichloroethylene 2 0.06 4.8E-01 4.2E-01 1.3E-07 2.9E-02
75-69-4 Trichlorofluoromethane 3.55 0.1065 --
95-63-6 Trimethylbenzene, 1,2,4-230 6.9 -1.3E+01 1.1E-01
108-67-8 Trimethylbenzene, 1,3,5-100 3 -1.3E+01 4.8E-02
1330-20-7 Xylenes 351 10.53 -2.1E+01 1.0E-01
Cumulative:1.5E-05 6.4E-01
All concentrations are in ug/m3
Output Form 3B
Carcinogenic risk and hazard quotient cells highlighted in orange are associated with non-volatile chemicals. Since these chemicals do not pose a vapor intrusion risk, no risk values are calculated for these chemicals.
North Carolina DEQ Risk Calculator
DEQ Risk Calculator - Vapor Intrusion - Non-Residential Worker Soil Gas to Indoor Air
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: BPN 24017-20-092
Exposure Unit ID: Worst Case Scenario
CAS #Chemical Name:
Soil Gas
Concentration
(ug/m3)
Calculated Indoor Air Concentration
(ug/m3)
Target Indoor Air Conc. for
Carcinogens @
TCR = 1E-06
Target Indoor Air Conc. for Non-
Carcinogens @
THQ = 0.2
Calculated
Carcinogenic Risk
Calculated
Non-
Carcinogenic Hazard Quotient
67-64-1 Acetone 170 1.7 -2.7E+04 1.3E-0571-43-2 Benzene 4.9 0.049 1.6E+00 2.6E+01 3.1E-08 3.7E-04106-99-0 Butadiene, 1,3-0.306 0.00306 4.1E-01 1.8E+00 7.5E-09 3.5E-0475-15-0 Carbon Disulfide 1.11 0.0111 -6.1E+02 3.6E-06108-90-7 Chlorobenzene 0.544 0.00544 -4.4E+01 2.5E-0567-66-3 Chloroform 40 0.4 5.3E-01 8.6E+01 7.5E-07 9.3E-0474-87-3 Chloromethane 0.218 0.00218 -7.9E+01 5.5E-06110-82-7 Cyclohexane 5.79 0.0579 -5.3E+03 2.2E-0675-71-8 Dichlorodifluoromethane 2 0.02 -8.8E+01 4.6E-05123-91-1 Dioxane, 1,4-0.36 0.0036 2.5E+00 2.6E+01 1.5E-09 2.7E-05141-78-6 Ethyl Acetate 1.98 0.0198 -6.1E+01 6.5E-05100-41-4 Ethylbenzene 53 0.53 4.9E+00 8.8E+02 1.1E-07 1.2E-04109-99-9 ~Tetrahydrofuran 24 0.24 -1.8E+03 2.7E-05
142-82-5 Heptane, N-20 0.2 -3.5E+02 1.1E-04
110-54-3 Hexane, N-10 0.1 -6.1E+02 3.3E-05591-78-6 Hexanone, 2-0.761 0.00761 -2.6E+01 5.8E-0567-63-0 Isopropanol 14 0.14 -1.8E+02 1.6E-04
78-93-3 Methyl Ethyl Ketone (2-Butanone)27 0.27 -4.4E+03 1.2E-05
108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone)20 0.2 -2.6E+03 1.5E-0575-09-2 Methylene Chloride 0.645 0.00645 1.2E+03 5.3E+02 5.3E-12 2.5E-0691-20-3 ~Naphthalene 4.66 0.0466 3.6E-01 2.6E+00 1.3E-07 3.5E-03115-07-1 Propylene 21 0.21 -2.6E+03 1.6E-05100-42-5 Styrene 7.46 0.0746 -8.8E+02 1.7E-05127-18-4 Tetrachloroethylene 380 3.8 4.7E+01 3.5E+01 8.1E-08 2.2E-02108-88-3 Toluene 120 1.2 -4.4E+03 5.5E-0579-01-6 Trichloroethylene 2 0.02 3.0E+00 1.8E+00 6.7E-09 2.3E-0375-69-4 Trichlorofluoromethane 3.55 0.0355 --95-63-6 Trimethylbenzene, 1,2,4-230 2.3 -5.3E+01 8.8E-03108-67-8 Trimethylbenzene, 1,3,5-100 1 -5.3E+01 3.8E-031330-20-7 Xylenes 351 3.51 -8.8E+01 8.0E-03
Cumulative:1.1E-06 5.1E-02
All concentrations are in ug/m3
Output Form 3E
Carcinogenic risk and hazard quotient cells highlighted in orange are associated with non-volatile chemicals. Since these chemicals do not pose a vapor intrusion risk, no risk values are calculated for these chemicals.
North Carolina DEQ Risk Calculator