18038_AquAirII_ VI Assessment Report_20240220

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Vapor Intrusion Assessment Report
AquAir II Brownfields Site – West Side
Southern Warehouse Building (aka Building 2)
12964 Sam Neely Road
Charlotte, North Carolina
Brownfields Project No. 18038-14-060
H&H Job No. TKC-008

Table of Contents

1.0 Introduction ..............................................................................................................................1 
2.0 Vapor Intrusion Assessment Activities ..................................................................................4 
2.1 Sub-Slab Soil Gas Monitoring Point Installation ..................................................................4 
2.2 Sub-Slab Soil Gas Sampling Methodology ...........................................................................5 
2.3 Sub-Slab Soil Gas Results .....................................................................................................7 
2.4 Sub-Slab Soil Gas Risk Evaluation .......................................................................................8 
2.5 Quality Assurance/Quality Control .......................................................................................9 
3.0 Summary and Recommendation .........................................................................................10 

Table

Table 1 Summary of Sub-Slab Soil Gas Analytical Data

Figures
Figure 1 Site Location Map
Figure 2 Site Map
Figure 3 Sample Location Map

Appendices
Appendix A Redevelopment Plan
Appendix B Vapor Pin Product Specifications
Appendix C Field Forms
Appendix D Laboratory Analytical Report
Appendix E DEQ Risk Calculator
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Vapor Intrusion Assessment Report
AquAir II Brownfields Site – West Side
Southern Warehouse Building (aka Building 2)
12964 Sam Neely Road
Charlotte, North Carolina
Brownfields Project No. 18038-14-060
H&H Job No. TKC-008

1.0 Introduction

Hart & Hickman, PC (H&H) has prepared this report to document vapor intrusion assessment
activities conducted at the southern warehouse building (aka Building 2) located on the west side
of the AquAir II Brownfields property (Brownfields Project No. 18038-14-060). The
Brownfields agreement for the AquAir II property includes three contiguous parcels totaling
approximately 154 acres which are separated by the Southern Railway tracks. The portion of the
Brownfields property to the east of the railroad tracks was previously redeveloped with a
warehouse building for Staples, Inc. in 2017/2018 and is currently owned by Gear 3725
Westinghouse LLC. The western portion of the Brownfields property (Site) consists of
approximately 80 acres of land (Mecklenburg County Parcel IDs 20141101 and 20141103) and
is currently developed with a northern warehouse building (HD Building) and southern
warehouse building (Building 2). Mecklenburg County Parcel 20141101 where the HD building
is located is owned by TKC CCCX, LLC, and Mecklenburg County Parcel ID 20141103 where
Building 2 is located is owned by LBA NCC-Company XXIX LLC. A Site location map is
provided as Figure 1, and a Site map is included as Figure 2.

Redevelopment at the Site was completed in two phases. The first phase of redevelopment in the
northern portion of the Site was completed in 2023 and included the construction of one
approximately 400,000 square ft industrial warehouse building, associated accessory buildings,
roadways, and parking. Vapor intrusion assessment and mitigation conducted in connection with
the HD Building has been provided to DEQ in other submittals. The HD Building is currently
occupied and operating as a distribution warehouse.

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The second phase of redevelopment included the construction of an approximately 220,000
square ft industrial warehouse building located in the southern portion of the Site. This building
is referred to herein as the “southern warehouse building” or “Building 2”. Building 2 is
currently vacant.

Building 2 construction is near completion. The foundation of Building 2 consists of a column-
supported slab-on-grade with exterior footings along the perimeter of the building. A
redevelopment plan along with foundation details for Building 2 is provided in Appendix A.

Land Use Restriction (LUR) “h.” in the Notice of Brownfields Property for the Site indicates that
no building may be constructed on the property unless DEQ determines in writing that the
building would be sufficiently distant from the property’s known soil or groundwater
contamination or that a plan for vapor mitigation is approved and implemented. In connection
with this LUR, H&H submitted a Vapor Intrusion Evaluation – Proposed Southern Building
letter to DEQ on June 13, 2023. The letter provided information regarding previous groundwater
and soil vapor data near the proposed southern building and requested that no vapor mitigation
measures or further vapor intrusion evaluation be required by DEQ for Building 2 on that basis
that prior groundwater and soil vapor data collected in the area did not indicate a significant
potential vapor intrusion concern.

Following its review of the June 13, 2023 evaluation letter, DEQ Brownfields requested
additional vapor intrusion evaluation for the proposed southern warehouse building in
accordance with Matrix 2 of the DRAFT DWM Minimum Mitigation and Sampling
Requirements for Reuse guidelines dated February 2023. In response to DEQ’s request, H&H
prepared and submitted the Vapor Intrusion Assessment Work Plan for Building 2 to DEQ on
October 24, 2023. Comments on the work plan were received from DEQ in an email dated
November 2, 2023. Based on DEQ’s comments, the Vapor Intrusion Assessment Work Plan –
Revision 1 (Work Plan) was submitted on November 30, 2023, and was subsequently approved
by DEQ. The Work Plan includes collection of sub-slab soil gas samples and indoor air samples
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after building construction. The following report includes a description of vapor intrusion
assessment activities conducted at Building 2 pursuant to the DEQ-approved Work Plan.
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2.0 Vapor Intrusion Assessment Activities

In accordance with the DEQ-approved Work Plan, vapor intrusion assessment activities were
conducted in December 2023 following the construction of Building 2. The vapor intrusion
assessment activities included the collection of sub-slab soil gas and indoor air samples. As
discussed in the Work Plan, the indoor air samples were submitted to the laboratory “on-hold”
pending the results of analysis of the sub-slab soil gas samples. As discussed further below,
results of analysis of the sub-slab soil samples did not indicate the presence of compounds in the
samples above DEQ Non-Residential Soil Gas Screening Levels (SGSLs). As such, the indoor
air samples were not analyzed and are not discussed further herein.

The assessment activities were performed in general accordance with the Department of
Environmental Quality (DEQ) Inactive Hazardous Sites Branch (IHSB) Guidelines for
Assessment and Cleanup of Contaminated Sites (Guidelines) dated September 2023, the most
recent versions of U.S. Environmental Protection Agency (EPA) Region IV Laboratory Services
and Applied Science Division (LSASD) Field Branches Quality System and Technical
Procedures guidance, the DEQ Division of Waste Management (DWM) Vapor Intrusion
Guidance, and the DEQ Brownfields Program Minimum Requirements Checklists for Site
Assessments dated February 2022. A description of the sub-slab soil gas sampling activities and
results is provided in the following sections.

2.1 Sub-Slab Soil Gas Monitoring Point Installation

On December 14, 2023, H&H installed eight permanent sub-slab soil gas points (SSV-1 through
SSV-8) within Building 2. Approximate locations of the sub-slab soil gas monitoring points are
shown on Figure 3. Three soil gas sampling points (SSV-1 through SSV-3) were installed in the
office area in the northwestern portion of the building, and five soil gas monitoring points (SSV-
4 through SSV-8) were installed in the warehouse area. Sub-slab soil gas sampling point
locations were chosen to provide roughly even coverage throughout the building.

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The sub-slab soil gas monitoring points were installed using a rotary hammer drill and 1½-inch
diameter drill bit to advance a pilot hole into the concrete slab to a depth of approximately 1¾
inches below the slab surface. A drill guide was then placed within the pilot hole, and a 5/8-inch
diameter drill bit was utilized to advance a boring through the concrete slab and approximately
6-inches into the underlying soil. Following borehole advancement, loose concrete cuttings were
removed from each boring, and a Cox-Colvin Vapor PinTM (vapor pin) assembly (brass sampling
point and silicone sleeve) was seated in the borehole using an installation/extraction tool and
dead blow hammer to form an airtight seal. Vapor pin product specifications and installation
instructions are included as Appendix B. The sub-slab soil gas sampling methodology, results,
and risk evaluation are discussed below.

2.2 Sub-Slab Soil Gas Sampling Methodology

In accordance with the EPA Office of Solid Waste and Emergency Response OSWER Technical
Guide for Assessing and Mitigating the Vapor Intrusion Pathway from Subsurface Vapor
Sources to Indoor Air (June 2015), the sub-slab soil gas monitoring points were purged of
ambient air, capped with a silicon tip, and allowed to equilibrate after installation and prior to
sample collection. An equilibrium period of at least two hours following installation and initial
“dead space” purging occurred prior to sample collection.

Following the recommended equilibration time, the Teflon® sample tubing at each sub-slab
sample location was connected to a laboratory supplied batch certified 1-liter stainless steel
Summa sample canister connected to an in-line flow controller with a vacuum gauge using a
brass nut and ferrule assembly to form an air-tight seal. The flow regulator was preset by the
laboratory to collect a soil gas sample over a 10-minute period at a flow rate no greater than
approximately 200 milliliters per minute. Prior to collection of the soil gas samples, a “shut-in”
test was conducted on the sampling train, and helium leak checks were conducted at each soil
gas sampling point. The shut-in test and helium leak check were conducted to ensure that short
circuiting with ambient air did not occur during sampling. A description of the shut-in test and
helium leak testing procedures is provided below.
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The shut-in test was conducted by connecting the flow regulator with the vacuum gauge to the
Summa® canister and sealing the flow regulator with the laboratory provided brass cap. 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 occurred. Vacuum
readings remained the same; therefore, the shut-in tests conducted at each sample point were
considered successful.

Following the shut-in test, the Summa® canister was connected to the sample point via Teflon®
sample tubing using a brass nut and ferrule assembly to create an airtight seal and the leak check
was performed. The leak check was performed by constructing a shroud over the sampling train,
including the canister, and flooding the shroud with helium gas. A calibrated helium gas
detector was utilized to measure helium concentrations within the shroud. Helium
concentrations within the shroud were maintained between approximately 10% and 13%. Once
helium concentrations stabilized within the shroud, the sample tubing was purged outside of the
shroud using a syringe and a three-way valve to collect purged soil gas into a Tedlar® bag. After
purging a minimum of three sample train volumes, the purged soil vapor was then analyzed
using the helium gas detector to confirm that helium concentrations in the soil gas point were
less than 10% of the helium concentrations measured within the shroud. Results of the helium
leak checks indicated that short-circuiting at the monitoring points or within the sampling train
was not present. Field forms completed by sampling personnel are included in Appendix C.

Following successful leak checks, the flow valve on the regulator was opened to allow collection
of the soil gas samples. Vacuum readings on the Summa® canister were monitored and recorded
during the sampling period to ensure adequate sample volume was collected at each sample
location. A vacuum of approximately 5 inches of mercury was maintained within the canisters at
the conclusion of the sampling event in accordance with the DEQ DWM Vapor Intrusion
Guidance.

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For quality assurance/quality control (QA/QC) purposes, one duplicate sub-slab soil gas sample
(SSV-DUP) was collected from monitoring point SSV-8. The duplicate sample was collected
utilizing a laboratory-supplied stainless-steel sampling “T” fitting which allows for the
simultaneous collection of two sub-slab soil gas samples from a single location.

Following sample collection, the Summa® canisters were placed in laboratory supplied shipping
containers, properly labeled and shipped under standard chain-of custody protocols to a
Waypoint Analytical (Waypoint) for analysis of volatile organic compounds (VOCs) by EPA
Method TO-15. The laboratory was requested to report the sample analytical data using
laboratory reporting limits that are below DEQ DWM Non-Residential SGSLs.

Following sample collection, the sub-slab soil gas monitoring points were finished at slab grade
with a flush-mount stainless steel cap. In addition, each sample location was estimated using a
hand-held GPS unit and/or using a tape measure referenced to fixed interior and/or exterior
walls.

2.3 Sub-Slab Soil Gas Results

Laboratory analytical results of the pre-occupancy sub-slab soil gas samples are summarized in
Table 1. In Table 1, the sub-slab soil gas analytical results are compared to the DEQ Non-
Residential Vapor Intrusion Sub-slab and Exterior Soil Gas Screening Levels (SGSLs) dated July
2023. The laboratory analytical report and the chain of custody record are provided in Appendix
D.

Laboratory analytical results of the sub-slab samples indicate the presence of several VOCs at
concentrations above laboratory method detection limits (MDLs). However, the concentrations
detected did not exceed DEQ Non-Residential SGSLs. Low-level concentrations of
tetrachloroethene (PCE) [ranging from 1.2 J micrograms per cubic meter (µg/m3) to 1.8 µg/m3]
were detected in two of the eight sub-slab sample locations collected in December 2023 (SSV-6
and SSV-8 and its duplicate). A laboratory-estimated low-level concentration of trichloroethene
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(TCE) (1.1 J µg/m3) was detected in one of the eight sub-slab samples (SSV-6) collected in
December 2023. The concentrations of PCE and TCE detected are multiple orders of magnitude
lower than their respective Non-Residential SGSLs of 3,500 µg/m3 for PCE and 180 µg/m3 for
TCE.

2.4 Sub-Slab Soil Gas Risk Evaluation

The DEQ Vapor Intrusion SGSLs are conservative and based on a Target Carcinogenic Risk
(TCR) of 1 x 10-6 and a Target Hazard Quotient (THQ) of 0.2 for potential non-carcinogenic
risks. The DEQ and EPA acceptable risk level for potential carcinogenic risks is a cumulative
lifetime incremental cancer risk (LICR) of 1 x 10-4 or less, and the acceptable level for non-
carcinogenic risks is a cumulative hazard index (HI) of 1.0 or less. The HI is the sum of the
THQs, and the LICR is the sum of the TCRs for each target analyte detected in a sample.

To further evaluate sub-slab soil gas concentrations detected, H&H utilized the DEQ Risk
Calculator (July 2023) to calculate potential vapor intrusion risks for each building. H&H
modeled a worst-case scenario for the southern warehouse building by using the highest
concentrations of any compound detected below the slab of the building during the December
2023 sampling. Based on the use of the southern warehouse building, H&H calculated risks for
the building based on a non-residential use scenario. The calculated cumulative LICR and HI
values are described below and copies of the completed DEQ Risk Calculators are provided in
Appendix E.

Results of the non-residential worst-case risk calculation for the southern warehouse building
indicate a calculated cumulative LICR of 8.1 x 10-8 and a HI value of 0.0043. The calculated
cumulative LICR and HI values are below the acceptable levels established by the DEQ and
EPA. Thus, the sub-slab soil gas analytical results and risk calculations indicate that soil vapor
below the southern warehouse building slab does not pose an unacceptable risk to future Site
occupants.

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2.5 Quality Assurance/Quality Control

Non-dedicated equipment and tools were decontaminated prior to use at each boring location.
To evaluate the reproducibility of the sample results, H&H collected one duplicate sub-slab soil
gas sample (SSV-DUP) which was submitted for the same analyses as the parent sample (SSV-
8). Laboratory analytical results of SSV-DUP and SSV-8 are generally similar (Table 1). This
result indicates good laboratory reproducibility.

Laboratory QA/QC procedures were employed to ensure appropriate sample handling and
analysis and to aid in the review and validation of the analytical data. QA/QC procedures were
conducted in accordance with the method protocols and includes regular equipment maintenance,
equipment calibration, and adherence to specific sample custody and data management
procedures.

Samples were analyzed in conjunction with appropriate blanks, laboratory duplicates, continuing
calibration standards, surrogate standards, and matrix spiking standards in accordance with
approved methodologies to monitor both instrument and analyst performance. H&H requested
that laboratory method detection limits for each analyte be at or below the DEQ DWM Non-
Residential Vapor Intrusion SGSLs, if possible. Additionally, H&H requested that the
laboratory include estimated concentrations for compounds that are detected at levels above the
laboratory method detection limit, but below the laboratory reporting limit (J Flags).

The laboratory analytical data report with QA package for samples submitted to and analyzed by
the subcontracted laboratory is provided in Appendix D. Laboratory QA data consistent with
Level II documentation was requested for this project. A copy of the completed chain-of-
custody record and shipping receipt are appended to the corresponding laboratory analytical
report included as Appendix D. In addition, Summa canister vacuum readings were documented
upon receipt by the laboratory.

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3.0 Summary and Recommendation

H&H completed vapor intrusion assessment activities for the southern warehouse building
located on the west side of the AquAir II Brownfields property (Brownfields Project No. 18038-
14-060) in December 2023. The vapor intrusion assessment activities were conducted
accordance with the DEQ-approved Vapor Intrusion Assessment Work Plan and included the
collection of sub-slab soil gas samples and indoor air samples. Because no compounds were
detected above Non-Residential SGSLs, the indoor air samples were not analyzed. A summary
of the results of the sub-slab soil gas sampling activities is summarized below.

Sub-Slab Soil Gas Results
Laboratory analytical results of the sub-slab soil gas samples collected from the southern
warehouse building did not indicate the presence of VOCs above DEQ Non-Residential Vapor
Intrusion SGSLs. To further evaluate the risk for vapor intrusion based on the sub-slab
concentrations detected, H&H utilized DEQ’s Risk Calculator. The results of the risk
calculations under a hypothetical worst-case non-residential exposure scenario did not indicate
calculated risk levels above acceptable risk levels for the southern warehouse building.

Recommendation
Based upon the results of analysis of the pre-occupancy soil gas samples, H&H does not
recommend further vapor intrusion evaluation for the southern warehouse building. H&H
requests that DEQ provide approval for occupancy of the southern warehouse building.

Table
Table 1
Summary of Sub-Slab Soil Gas Analytical Data
AquAir II Brownfields Site - West Side
13300 Sam Neely Road
Charlotte, North Carolina
H&H Job No. TKC-008
Sample Location Screening Criteria
Sample ID SSV-1 SSV-2 SSV-3 SSV-4 SSV-5 SSV-6 SSV-7
Sample Type
Sample Date 12/14/2023 12/14/2023 12/14/2023 12/14/2023 12/14/2023 12/14/2023 12/14/2023
Units
VOCs (TO-15)
Acetone 1,400 E 1,200 E 1,300 E 740 E 790 E 770 E 870 E 550 E 540 E NE
Benzene 0.92 0.82 1.2 1.4 1.0 0.96 0.97 0.83 0.88 160
Carbon Disulfide 7.3 3.1 J 2.6 J 4.8 J 4.1 J 1.9 J 1.9 J 4.4 J 4.2 J 61,000
Chloroform 1.1 1.0 0.45 J 0.35 J 0.61 J 0.61 J 0.96 J <0.25 <0.25 53
Chloromethane 0.32 J 0.33 J 0.37 J 0.41 J 0.58 J 0.67 J 0.36 J 0.63 J 0.58 J 7,900
Cyclohexane 0.81 0.62 J 1.0 0.63 J <0.30 <0.30 0.84 J 0.44 J 0.45 J 530,000
Dichlorodifluoromethane 1.2 1.2 1.4 2.1 1.9 2.1 1.4 1.4 1.3 8,800
cis-1,2-Dichloroethylene <0.24 <0.24 <0.24 0.38 J <0.24 <0.24 <0.24 <0.24 <0.24 3,500
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)<0.56 <0.56 <0.56 <0.56 0.62 J <0.56 <0.56 <0.56 <0.56 NE
1,4-Dioxane 4.6 J 6.1 J 4.0 J <3.5 <3.5 <3.5 4.6 J <3.5 <3.5 250
Ethanol 610 E 630 E 370 310 500 E 330 430 E 380 E 370 NE
Ethyl Acetate <2.1 <2.1 <2.1 18 25 <2.1 4.1 J <2.1 <2.1 6,100
Ethylbenzene 1.1 1.2 0.97 0.83 J 0.64 J 0.56 J 0.83 J 0.40 J 0.47 J 490
4-Ethyltoluene <0.43 <0.43 0.88 J <0.43 <0.43 <0.43 <0.43 <0.43 <0.43 NE
Heptane 0.93 0.66 J 1.8 2.6 0.85 0.80 J 1.7 <0.52 0.57 J 35,000
2-Hexanone <0.35 1.2 <0.35 1.4 1.8 1.1 0.39 J <0.35 <0.35 2,600
Isopropyl Alchohol 30 31 24 19 J 26 15 J 23 16 J 16 J 18,000
Methyl Ethyl Ketone (MEK) 47 58 16 J 24 27 10 J 10 J 13 J 12 J 440,000
4-Methyl-2-Pentanone 3.0 3.4 2.3 3.2 2.6 1.6 1.8 1.4 1.4 260,000
Methylene Chloride <1.9 <1.9 <1.9 2.9 J <1.9 <1.9 <1.9 <1.9 <1.9 53,000
Naphthalene <0.70 <0.70 <0.70 0.71 J <0.70 <0.70 <0.70 <0.70 <0.70 36
Styrene 3.9 2.8 5.4 1.9 1.0 0.94 0.94 1.2 1.2 88,000
Tetrachloroethene <0.51 <0.51 <0.51 <0.51 <0.51 1.2 J <0.51 1.8 1.7 3,500
Tetrahydrofuran 7.3 8.6 7.6 1.4 J <1.2 <1.2 <1.2 <1.2 <1.2 180,000
Toluene 2.8 3.8 3.7 4.1 6.7 4.0 5.3 1.9 2.0 440,000
1,1,2-Trichloro-1,2,2-trifluoroethane 0.55 J 0.37 J 0.40 J 0.43 J 0.43 J 0.71 J 0.43 J 0.37 J 0.40 J 440,000
Trichloroethene <0.44 <0.44 <0.44 <0.44 <0.44 1.1 J <0.44 <0.44 <0.44 180
Trichlorofluoromethane 1.3 J 1.3 J 1.2 J 0.85 J 1.4 J 1.6 J 1.2 J 1.2 J 1.1 J NE
1,2,4-Trimethylbenzene 0.77 J 0.49 J 2.1 1.5 0.65 J 0.92 J 0.90 J 0.63 J 0.63 J 5,300
1,3,5-Trimethylbenzene <0.51 <0.51 1.9 <0.51 <0.51 <0.51 <0.51 <0.51 <0.51 5,300
Vinyl Acetate <2.5 <2.5 <2.5 <2.5 3.0 J <2.5 <2.5 5.4 J <2.5 18,000
o-Xylene 2.2 0.68 J 1.2 1.1 0.96 1.0 1.2 0.61 J 0.63 J 8,800
m,p-Xylene 1.7 1.3 J 2.2 2.4 2.1 2.0 2.5 1.1 J 1.3 J 8,800
DEQ Risk Calculator (2)Acceptable Risk Levels
LICR (Non-Residential)<1.0 x 10-4
Non-Carcinogenic HI (Non-Residential)<1.0
Notes:
1) North Carolina Department of Environmental Quality (DEQ) Vapor Intrusion Sub-Slab & Exterior Soil Gas Screening Levels (SGSLs) dated July 2023.
2) DEQ Cumulative Risk Calculator dated July 2023 and is based up on a TCR = 1 x 10-6 and THQ = 0.2.
Cumulative LICR and HI values calculated using the highest concentration of any compound detected in any sample collected to evaluate each building. Results are compared to DEQ and EPA acceptable risk levels for carcinogenic and non carcinogenic risks.
Compound concentrations are reported in micrograms per cubic meter (μg/m3) and are reported to the laboratory method detection limits.
Laboratory analytical method is shown in parentheses.
Only compounds detected in at least one sample are shown in the above table.
TCR = Target Cancer Risk; THQ = Non-Carcinogenic Target Hazard Quotient; LICR = Lifetime Incremental Cancer Risk; HI = Hazard Index
VOCs = volatile organic compounds; NE = not established
J = Compound was detected above the laboratory method detection limit but below the laboratory reporting limit resulting in a laboratory estimated concentration.
E = Reported result is estimated; value reported is over the verified calibration range.
Non-Residential SGSLs (1)Sub-Slab
SSV-8 / SSV-DUP
12/14/2023
Southern Warehouse Building
µg/m3
0.0043
8.1 x 10-8
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Table 1 (Page 1 of 1)
Hart & Hickman, PC

Figures
Brownfields Property Outline (in red)
0 2000 4000
APPROXIMATE
SCALE IN FEETN
U.S.G.S. QUADRANGLE MAP
QUADRANGLE
7.5 MINUTE SERIES (TOPOGRAPHIC)
CHARLOTTE WEST, NORTH CAROLINA, 1996
TITLE
PROJECT
SITE LOCATION MAP
AQUAIR IISAM NEELY ROADCHARLOTTE, NORTH CAROLINA
DATE:
JOB NO:
REVISION NO:
FIGURE:
9/25/23 0
1TKC-00
West Side
Brownfields
Area (in blue)
Southern Warehouse Parcel (in black)
CR
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
FD
EF
L
CRCR
CR
REVISION NO. 0
JOB NO. TKC-008
DATE: 8-25-23
FIGURE NO. 2
AQUAIR II BROWNFIELDS SITE - WEST SIDE
13300 SAM NEELY ROAD
CHARLOTTE, NORTH CAROLINA
SITE MAP
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 Geology
LEGEND
BROWNFIELDS PROPERTY BOUNDARY
SITE BOUNDARY
LIMITS OF GROUNDWATER CONTAMINATION
RAILROAD TRACKS
SURFACE WATER FEATURE
FENCE LINE
NORTHERN BUILDING FOOTPRINT
SOUTHERN BUILDING FOOTPRINT
AREA OF POSSIBLE SOIL
CONTAMINATION
SAM NEELY ROAD
ALRO STEEL CORP.
(12933 SAM NEELY ROAD)
LAZY OAK LANE
RESIDENTIALRESIDENTIAL
TEXAS PIPE & SUPPLY CO.
(12910 SAM NEELY ROAD)
EXISTING STAPLES
WAREHOUSE BUILDING
STORMWATER MANAGEMENT
POND
SOURCES
1. SITE PLAN PROVIDED BY BURTON ENGINEERING.
2. AERIAL PHOTOGRAPH FROM MECKLENBURG
COUNTY GIS.
FUTURE
CAROWINDS
BOULEVARD
REVISION NO. 0
JOB NO. TKC-008
DATE: 1-9-24
FIGURE NO. 3
AQAUIR II BROWNFIELDS SITE - WEST SIDE
13300 SAM NEELY ROAD
CHARLOTTE, NORTH CAROLINA
SAMPLE LOCATION MAP
LEGEND
SUB-SLAB VAPOR SAMPLE LOCATION
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 Geology
NOTES:
1.BUILDING LAYOUT PROVIDED BY MERRIMAN SCHMITT
ARCHITECTS, DATED 4-27-23.
SSV-4 SSV-6
SSV-5
SSV-7
SSV-8
SSV-3
SSV-2
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Appendix A

Redevelopment Plan
PROJECT NUMBER
DA
T
E
DR
A
W
N

B
Y
EN
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CT
B
PM
CT
B
RE
V
I
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N
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THIS DRAWING IS THE PROPERTY OF
BURTON ENGINEERING ASSOCIATES AND IS
NOT TO BE REPRODUCED OR COPIED IN
WHOLE OR IN PART. IT IS NOT TO BE USED
ON ANY OTHER PROJECT AND IS TO BE
RETURNED UPON REQUEST.
5950 FAIRVIEW RD STE 100
CHARLOTTE NC 28210
(T) 704.553.8881
burtonengineering.com
FIRM #C-1157
13
0
0
6

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017.554.026
22
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20
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( IN FEET )
00000
1 inch = 50 ft.
050 25 50 100 200
DRAWING INFORMATION
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QL QL QL QL QL QL QL
QL QL QL QL QL QL QL
IB
LANDSCAPING CALCULATIONS
INTERNAL PLANTING REQUIREMENTS:
1 TREE PER 10,000 SF IMPERVIOUS AREA
IMPERVIOUS AREA = 442,032 SF
REQUIRED TREES = 44
PROVIDED TREES = 14 + 30 = 44
PERIMETER PLANTING REQUIREMENT ALONG PROPOSED CAROWINDS BLVD:
1 TREE PER 40 LF LENGTH OF PERIMETER = 2133 LF
REQUIRED TREES = 2133 LF / 40 LF = 53.33 = 53
TREES PROVIDED TREES = 53
PERIMETER PARKING LOT REQUIREMENTS:
1 TREE PER 40 LF AT TRUCK COURT (SATISFIED BY CLASS A BUFFER)
SHRUBS REQUIRED AT 5FT O.C. ALONG ALL PARKING
193 SHRUBS PROVIDED
NO PARKING SPOT CAN BE OVER 40 FT FROM A TREE
14 TREES PROVIDED
LARGE MATURING TREE REQUIREMENTS:
75% LARGE MATURING TREES REQUIRED
329 TREES PROVIDED ACROSS SITE (INTERNAL, PARKING, PERIMETER, TREE SAVE, BUFFER)
247 LARGE MATURING TREES REQUIRED
208 LARGE MATURING TREES PROVIDED, 121 SMALL MATURING TREES PROVIDED*
*BUFFER REQUIREMENTS FOR LARGE MATURING (40%) VARY FROM GENERAL
TREE PLANTING REQUIREMENTS
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LANDSCAPE SCHEDULE (excluding buffer plantings)
LARGE MATURING TREES
QTY.SYM.BOTANICAL NAME COMMON NAME LOCATION FOLIAGE GROWTH RATE ROOT/CONT.PLANTING HEIGHT/SIZE AVG. MATURE SIZE SPACING
MIN. 8’ TALL, 2" CAL.; STRAIGHT TRUNK; STRONG, CENTRAL LEADERCJ19CRYPTOMERIA JAPONICA ’YOSHINO’YOSHINO JAPANESE CEDAR FAST 30'-40’ H x 20'-30' W AS SHOWNINTERNALEB & B
PARKING, INTERNAL MIN. 8’ TALL, 2" CAL.; STRAIGHT TRUNK; STRONG, CENTRAL LEADERQUERCUS LAURIFOLIAQL LAUREL OAK FAST B & B AS SHOWN25D40'-60' H x 40-60' W
MIN. 8' TALL, 2" CAL.; STRAIGHT TRUNK; STRONG, CENTRAL LEADERQUERCUS PHELLOSQP27 WILLOW OAK STREET TREE MEDIUM B & B 40’-75’ H x 25-50' W AS SHOWND
0 MIN. 8' TALL, 2" CAL.; STRAIGHT TRUNK; STRONG, CENTRAL LEADERQSQUERCUS SHUMARDII26 SHUMARD OAK STREET TREE MEDIUM B & B 40’-60’ H x 30-40' W AS SHOWND
SHRUBS
MIN. 2.5'-3' TALL; MIN. 2' WIDEILEX CORNUTA 'DWARF BURFORD'IB 193 DWARF BURFORD CHINESE HOLLY SCREENING E SLOW 7 GAL. CONTAINER 6'-8' H x 6'-8' W 5FTON CENTER
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180 CAR SPACES
26 TRAILER SPACES
N68° 05' 22.39"W
720.54'
S52° 18' 58
.
2
9
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E
489.83'
810'
918'
26
0
'
LOT 2
PROPOSED BUILDING
13006 SAM NEELY RD, CHARLOTTE NORTH CAROLINA
232,310-SF
FFE = 632.00'
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(SEE SUBDIVISION PLANS SDRC-2018-00139)
CDOT MAINTAINED
100' R/W
LOT 1
UNDER CONSTRUCTION
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FFE = 633.35'
20' SETBACK
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THIS DRAWING IS THE PROPERTY OF
BURTON ENGINEERING ASSOCIATES AND IS
NOT TO BE REPRODUCED OR COPIED IN
WHOLE OR IN PART. IT IS NOT TO BE USED
ON ANY OTHER PROJECT AND IS TO BE
RETURNED UPON REQUEST.
5950 FAIRVIEW RD STE 100
CHARLOTTE NC 28210
(T) 704.553.8881
burtonengineering.com
FIRM #C-1157
13
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4
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( IN FEET )
0
1 inch = 100 ft.
0100 50 100 200 400
DRAWING INFORMATION
SWM
WET POND
FORE
BAY
WET POND
REQUIRED PARKING :
"WAREHOUSE" (232,310-SF x 0.86%)
.25 SPACES PER 1000-SF @ 199,787-SF = 50 REQUIRED
"ACCESSORY OFFICE" (232,310-SF x 0.14%)
1 SPACE PER 300 SF @ 32,523-SF = 109 REQUIRED
TOTAL REQUIRED = 159
TOTAL PROVIDED = 180 SPACES
ACCESSIBLE PARKING
REQUIRED: = 2 (INCLUDING 1 VAN)
PROVIDED: = 2 (INCLUDING 1 VAN)
LOADING SPACE
REQUIRED: (6) 10'x50'
PROVIDED: 69 (10' X 50' = LOADING DOCK)
BICYCLE PARKING:
SHORT TERM
REQUIRED: 2 (1% AUTO PARKING)
PROVIDED: 6 (1% AUTO PARKING)
LONG TERM
REQUIRED: 6 MINIMUM; or 1 PER 40,000-SF
PROVIDED 6 ( TO BE LOCATED WITHIN THE BUILDING.)
PARKING TABULATION
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01/27/2023
MECKLENBURG COUNTY
CODE ENFORCEMENT
The Design In These Construction
Documents Have Been Reviewed For
Compliance With The State Building
Code. It Is The Responsibility Of The
Contractor To Construct This Project
With Good Engineering Practice And
In Compliance With The North
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704.327.1177
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DATE
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0l(ABOVE)(TkT)MARK DATE DESCRIPTION125-87’ -0 v 09/29/22CD1 ISSUED FOR CONSTRUCTION7' 7'7V 12/02/22CD2 CODE REVIEW COMMENTSOIMP1HP1HP6I1T12/22/22CD3 CODE REVIEW COMMENTS-V\CXD
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■<—M-MINIMUM 36 FT. CLEAR HEIGHT UNDER
STRUCTURE, TYPICAL\
PROJECT NUMBER:
C22095
PERMIT TRACKING:
4409770
SHEET TITLE:
FLOOR
PLANFIRE PUMP ROOM PLAN ENLARGED FLOOR PLAN COLUMN WRAP DETAIL
SCALE: 1/4" 1-0SCALE: 1/4"r-o 1’-0"SCALE: 1/4
SHEET NUMBER:
A101
©2022 MERRIMAN SCHMITT ARCHITECTS, INC.
C22095
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OWNER / CLIENT SIGNATURE
DATE
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SHEET TITLE:
SHEET NUMBER:
MERRIMAN SCHMITT ARCHITECTS, INC.
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CD1 09/29/22 ISSUED FOR CONSTRUCTION
09/29/22
PARTIAL FOUNDATION
AND FLOOR SLAB PLAN
S101
MECKLENBURG COUNTY
CODE ENFORCEMENT
The Design In These Construction
Documents Have Been Reviewed For
Compliance With The State Building
Code. It Is The Responsibility Of The
Contractor To Construct This Project
With Good Engineering Practice And
In Compliance With The North
Carolina State Building Code.
architectsmsa
merriman
schmitt
architecture • planning
interior designSXR.9 NP M L KR
605 LEXINGTON AVE
SUITE 300
CHARLOTTE, NC 28203
704.377.1177
704.377.3060 (fax)
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COVERF1554 GRADE 36 ANCHOR ROD
W/ (3) NUTS AND WASHERS
OVERSIZED WASHER
|X/2 |X/2|s NO MP L KR
COLUMN BASE PLATE GAGE ANCHOR ROD
THICK. X Y Gx Gy DIA. PR0J. EMBD. GROUT
1*16* 16’ 13’ 13’7’9’2*1HSS10x10 FOUNDATION & FLOOR SLAB PLAN oS1011” = 20’—0”
NOTES:
1. TOP OF FOOTING - T.O.F. ( ) REFERENCED FROM FIN. FL. ELEV. (0-0).
2. TOP OF INTERIOR FOOTINGS (-l’-O”) TYPICAL UNLESS NOTED OTHERWISE.
3. TOP OF EXTERIOR FOOTINGS (-l’-O”) TYPICAL UNLESS NOTED OTHERWISE.4. SEE SHEET S001 FOR GENERAL NOTES.
5. SEE THIS SHEET FOR FOOTING SCHEDULE & COLUMN BASE PLATE SCHEDULE
6. GENERAL CONTRACTOR SHALL COORDINATE FOOTING STEPS WITH
TILT-UP CONCRETE WALL PANELS-TYPICAL - SEE 3/S301.
1 Vi 18” 18’ 15’ 15’ 1’8’12’2’HSS12x12 o
114’18’ 18’ 15’ 15’ 1’7’9’2*W12x72
2 COL BASE PL & ANCHOR ROD SCHED.
si 01 NO SCALE
A
FOOTING SCHEDULE (3000 PSF)
THICK. REINFORCINGMARK SIZE
5 #6 x5’-0’ EACH WAY
8 #5 x5’-6* EACH WAY
9 #6 x6’-0* EACH WAY
10 #7 x8’-6’ EACH WAY TOP AND BOTTOM
SOILS LABORATORY SHALL VERIFY SOIL BEARING PRESSURE AT BOTTOM OF EACH FOOTING PRIOR TO PLACING CONCRETE.
STRUCTURAL FILL SUPPORTING SLAB OR FOOTINGS SHALL BE PLACED IN MAXIMUM 8’ LIFTS, WITH EACH 8’ LIFT TESTED
BY LABORATORY FOR COMPACTION USTED IN GENERAL NOTES.
5’-6’x5’-6*
6’-0*x6’-0’
6’-6*x6’-6 ’
9’-0’x9’-0’
T-0’F55
1-1’F60
1-2’F65
1-7"F90
WALL FOOTING SCHEDULE (3000 PSF SOIL BEARING)
MARK WIDTH THICK. I LONGITUDINAL REINF.TRANSVERSE REINF. COMMENTS HOLD DOWNS
NO TOP REINF. NO TOP REINF.SEE 5/S301 SEE 1/T2023-0’1-0’WF30
(4) #5 BOTTOM
NO TOP REINF.
#5 x 2’-6* 0 18’ O.C. BOTT.
NO TOP REINF.SEE 5/S301 SEE 2/T2023-6’1’—0"WF35
(5) #5 BOTTOM
0) f TOP
(9) #7 BOTTOM
SOILS LABORATORY SHALL VERIFY SOIL BEARING PRESSURE AT BOTTOM OF EACH FOOTING PRIOR TO PLACING CONCRETE.
STRUCTURAL FILL SUPPORTING SLAB OR FOOTINGS SHALL BE PLACED IN MAXIMUM 8* UFTS, WITH EACH 8* LIFT TESTED
BY LABORATORY FOR COMPACTION LISTED IN GENERAL NOTES.
#5 x 3’-0” 0 14’ O.C. BOTT.
#7 x 7-6’ 0 12* O.C. TOP
#7 x 7’-6* ® 12’ O.C. BOTT.
SEE 5/S302 SEE 3/T2028-0’ 2-0’WF80
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OWNER / CLIENT SIGNATURE
DATE
PERMIT TRACKING:PROJECT NUMBER:
SHEET TITLE:
SHEET NUMBER:
MERRIMAN SCHMITT ARCHITECTS, INC.
SEALS:
CLIENT:
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MINIMUM 36 FT. CLEAR HEIGHT UNDER
STRUCTURE, TYPICAL.
CD0 09/13/22 ISSUED FOR PRICING
DRAWING STATUS:
NOT FOR CONSTRUCTION
ISSUED FOR BIDDING
ISSUED FOR CONSTRUCTION
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WGPM, Inc.
704-542-7199 Fax: [phone]
11220 Elm Lane, Suite 201
Charlotte, North Carolina 28277
www.wgpminc.com
CD1 09/29/22 ISSUED FOR CONSTRUCTION
09/29/22
PARTIAL FOUNDATION
AND FLOOR SLAB PLAN
S102
MECKLENBURG COUNTY
CODE ENFORCEMENT
The Design In These Construction
Documents Have Been Reviewed For
Compliance With The State Building
Code. It Is The Responsibility Of The
Contractor To Construct This Project
With Good Engineering Practice And
In Compliance With The North
Carolina State Building Code.
architectsmsa
mernman
schmitt
architecture • planning
interior designcG D BK F E A1IAH
605 LEXINGTON AVE
SUITE 300
CHARLOTTE, NC 28203
704.377.1177
704.377.3060 (fax)
918-0*w-
54-0” 54-0” 54-0” 54’-0” 54-0”54’-0* 54’-0* 54’-0* 54-0"
£ FTG.
FTG. £ FTG. £ RG. £ RG. £ RG.
13-6" L 12-9" L 12-9" L 13-6 19-014* 1-4)4*4k ->Y-9"7T
*
6 F90
SACRIFICIAL TILT-UP &S301 INDICATES
PANEL LEG FOR LIFTING - TYP.
(-2-0*) H90 j J J JtlciF90 F90 F90 F90 F90 i tCM^ r i i i L J.1tsui i--------------1 i----------1 i----------1 r j ■*.-.klAUAUXI !x-
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RE-ENTRANT CORNERS -
LOCATE 1” BELOW TOP
SURFACE OF SLAB - TYP.
iv>0TURNED DOWN SLAB
AT ENTRANCES - SEE
14/S301 - TYP.
oI O 14to
S301
N\^\w CARo'%
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INDICATES LEAVE OUT
STRIP AT ENTRANCES
- SEE 14/S301
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SEE 9/S301
Wright ♦ Gibson ♦ Patton
STRUCTURAL ENGINEERING&
4>F60 F60 F60 F60 F60 F60 F60 F60 F60 [iF55
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ID IIOo o o o o o COroCM£
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7* CONCRETE SLAB (4000 PSI)
W/ #3 ® 18* O.C. EACH WAY
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ON 4’ DRAINAGE FILL - FINISHED
FLOOR ELEVATION (0-0)
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AT DRIVE IN DOOR
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TYP. AT POUR BACK (SEE 1/S301)
- FINISHED FLOOR ELEVATION (0-0)
iI >DL - INDICATES DOCK LEVELER
- SEE 1-4/S302
PROVIDE CONTROL JOINTS ®
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W/ #3 ® 18’ O.C. EACH WAY
(214* CLR) ON 4' DRAINAGE
FILL - ELEVATION VARIES -
TYP. AT EXTERIOR SLABS
iS301 S301 S302 "inI
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S301
STEP AS REQ’D. TO MAINTAIN
COVER □“TO
S301J CXC1G D B AK H F E
1 FOUNDATION & FLOOR SLAB PLAN oS1011” = 20-0”
NOTES:
1. TOP OF FOOTING - T.O.F. ( ) REFERENCED FROM FIN. FL. ELEV. (0-0).
2. TOP OF INTERIOR FOOTINGS (-l'-0") TYPICAL UNLESS NOTED OTHERWISE.
3. TOP OF EXTERIOR FOOTINGS (-l’-0") TYPICAL UNLESS NOTED OTHERWISE.4. SEE SHEET S001 FOR GENERAL NOTES.
5. SEE SI01 FOR FOOTING SCHEDULE & COLUMN BASE PLATE SCHEDULE
6. GENERAL CONTRACTOR SHALL COORDINATE FOOTING STEPS WITH
TILT-UP CONCRETE WALL PANELS-TYPICAL - SEE 3/S301.
O
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Appendix B

Vapor Pin Product Specifications

Standard Operating Procedure
Installation and Extraction
of the Vapor Pin®
Updated September 9, 2016

VAPOR PIN® protected under US Patent # 8,220,347 B2, US 9,291,531 B2 and other patents pending
Cox-Colvin & Associates, Inc. • 7750 Corporate Blvd., Plain City, Ohio 43064 • [phone] • VaporPin.CoxColvin.com
Scope:

This standard operating procedure describes
the installation and extraction of the VAPOR
PIN® for use in sub-slab soil-gas sampling.

Purpose:

The purpose of this procedure is to assure
good quality control in field operations and
uniformity between field personnel in the use
of the VAPOR PIN® for the collection of sub-
slab soil-gas samples or pressure readings.

Equipment Needed:

 Assembled VAPOR PIN® [VAPOR PIN® and
silicone sleeve(Figure 1)]; Because of
sharp edges, gloves are recommended for
sleeve installation;
 Hammer drill;
 5/8-inch (16mm) diameter hammer bit
(hole must be 5/8-inch (16mm) diameter
to ensure seal. It is recommended that
you use the drill guide). (Hilti™ TE-YX
5/8" x 22" (400 mm) #00206514 or
equivalent);
 1½-inch (38mm) diameter hammer bit
(Hilti™ TE-YX 1½" x 23" #00293032 or
equivalent) for flush mount applications;
 ¾-inch (19mm) diameter bottle brush;
 Wet/Dry vacuum with HEPA filter
(optional);
 VAPOR PIN® installation/extraction tool;
 Dead blow hammer;
 VAPOR PIN® flush mount cover, if
desired;
 VAPOR PIN® drilling guide, if desired;
 VAPOR PIN® protective cap; and
 VOC-free hole patching material
(hydraulic cement) and putty knife or
trowel for repairing the hole following the
extraction of the VAPOR PIN®.

Figure 1. Assembled VAPOR PIN®

Installation Procedure:

1) Check for buried obstacles (pipes,
electrical lines, etc.) prior to proceeding.

2) Set up wet/dry vacuum to collect drill
cuttings.

3) If a flush mount installation is required,
drill a 1½-inch (38mm) diameter hole at
least 1¾-inches (45mm) into the slab.
Use of a VAPOR PIN® drilling guide is
recommended.

4) Drill a 5/8-inch (16mm) diameter hole
through the slab and approximately 1-
inch (25mm) into the underlying soil to
form a void. Hole must be 5/8-inch
(16mm) in diameter to ensure seal. It is
recommended that you use the drill
guide.
Standard Operating Procedure
Installation and Removal of the Vapor Pin®
Updated September 9, 2016
Page

VAPOR PIN® protected under US Patent # 8,220,347 B2, US 9,291,531 B2 and other patents pending
Cox-Colvin & Associates, Inc. • 7750 Corporate Blvd., Plain City, Ohio 43064 • [phone] • VaporPin.CoxColvin.com
5) Remove the drill bit, brush the hole with
the bottle brush, and remove the loose
cuttings with the vacuum.

6) Place the lower end of VAPOR PIN®
assembly into the drilled hole. Place the
small hole located in the handle of the
installation/extraction tool over the vapor
pin to protect the barb fitting, and tap
the vapor pin into place using a dead
blow hammer (Figure 2). Make sure the
installation/extraction tool is aligned
parallel to the vapor pin to avoid
damaging the barb fitting.

Figure 2. Installing the VAPOR PIN®

During installation, the silicone sleeve will
form a slight bulge between the slab and the
VAPOR PIN® shoulder. Place the protective
cap on VAPOR PIN® to prevent vapor loss
prior to sampling (Figure 3).

Figure 3. Installed VAPOR PIN®

7) For flush mount installations, cover the
vapor pin with a flush mount cover, using
either the plastic cover or the optional
stainless-steel Secure Cover (Figure 4).

Figure 4. Secure Cover Installed

8) Allow 20 minutes or more (consult
applicable guidance for your situation)
for the sub-slab soil-gas conditions to re-
equilibrate prior to sampling.

9) Remove protective cap and connect
sample tubing to the barb fitting of the
VAPOR PIN®. This connection can be
made using a short piece of TygonTM
tubing to join the VAPOR PIN® with the
Nylaflow tubing (Figure 5). Put the
Standard Operating Procedure
Installation and Removal of the Vapor Pin®
Updated September 9, 2016
Page

VAPOR PIN® protected under US Patent # 8,220,347 B2, US 9,291,531 B2 and other patents pending
Cox-Colvin & Associates, Inc. • 7750 Corporate Blvd., Plain City, Ohio 43064 • [phone] • VaporPin.CoxColvin.com
Nylaflow tubing as close to the VAPOR
PIN® as possible to minimize contact
between soil gas and TygonTM tubing.

Figure 5. VAPOR PIN® sample connection

10) Conduct leak tests in accordance with
applicable guidance. If the method of
leak testing is not specified, an alternative
can be the use of a water dam and
vacuum pump, as described in SOP Leak
Testing the VAPOR PIN® via Mechanical
Means (Figure 6). For flush-mount
installations, distilled water can be
poured directly into the 1 1/2 inch
(38mm) hole.

Figure 6. Water dam used for leak detection

11) Collect sub-slab soil gas sample or
pressure reading. When finished, replace
the protective cap and flush mount cover
until the next event. If the sampling is
complete, extract the VAPOR PIN®.

Extraction Procedure:

1) Remove the protective cap, and thread
the installation/extraction tool onto the
barrel of the VAPOR PIN® (Figure 7).
Turn the tool clockwise continuously,
don't stop turning, the VAPOR PIN® will
feed into the bottom of the
installation/extraction tool and will
extract from the hole like a wine cork, DO
NOT PULL.

2) Fill the void with hydraulic cement and
smooth with a trowel or putty knife.
Figure 7. Removing the VAPOR PIN®

 Prior to reuse, remove the silicone
sleeve and protective cap and discard.
Decontaminate the VAPOR PIN® in a
hot water and Alconox® wash, then
heat in an oven to a temperature of
265o F (130o C) for 15 to 30 minutes.
For both steps, STAINLESS – ½ hour,
BRASS 8 minutes
3) Replacement parts and supplies are
available online.

Appendix C

Field Forms

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Appendix D

Laboratory Analytical Report

39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
December 22, 2023
John Lopez
Hart & Hickman - Charlotte, NC
2923 South Tryon Street, Suite 100
Charlotte, NC 28203
Project Location: Charlotte, NC
Client Job Number:
Project Number: TKC-008
Laboratory Work Order Number: 23L2558
Enclosed are results of analyses for samples as received by the laboratory on December 16, 2023. If you have any questions
concerning this report, please feel free to contact me.
Sincerely,
Rebecca Faust
Project Manager
QA Officer
Katherine Allen
Laboratory Manager
Daren Damboragian
Page 1 of 38
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL SUMMARY
12/22/2023Hart & Hickman - Charlotte, NC
2923 South Tryon Street, Suite 100
Charlotte, NC 28203
ATTN: John Lopez
TKC-008
23L2558
The results of analyses performed on the following samples submitted to Con-Test, a Pace 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
Charlotte, NC
SSV-1 23L2558-01 Sub Slab EPA TO-15
SSV-2 23L2558-02 Sub Slab EPA TO-15
SSV-3 23L2558-03 Sub Slab EPA TO-15
SSV-4 23L2558-04 Sub Slab EPA TO-15
SSV-5 23L2558-05 Sub Slab EPA TO-15
SSV-6 23L2558-06 Sub Slab EPA TO-15
SSV-7 23L2558-07 Sub Slab EPA TO-15
SSV-8 23L2558-08 Sub Slab EPA TO-15
SSV-DUP 23L2558-09 Sub Slab -
EPA TO-15
Page 2 of 38
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.
EPA TO-15
Qualifications:
Reported result is estimated. Value reported over verified calibration range.
Analyte & Samples(s) Qualified:
E
Acetone, Ethanol
23L2558-01[SSV-1], 23L2558-02[SSV-2], 23L2558-03[SSV-3], 23L2558-04[SSV-4], 23L2558-05[SSV-5], 23L2558-06[SSV-6], 23L2558-07[SSV-7], 23L2558-08[SSV-8],
23L2558-09[SSV-DUP], B361620-DUP1
Initial calibration verification (ICV) did not meet method specifications and was biased on the low side for this compound. Reported result is
estimated.
Analyte & Samples(s) Qualified:
V-34
Carbon Tetrachloride
23L2558-01[SSV-1], 23L2558-02[SSV-2], 23L2558-03[SSV-3], 23L2558-04[SSV-4], 23L2558-05[SSV-5], 23L2558-06[SSV-6], 23L2558-07[SSV-7], 23L2558-08[SSV-8],
23L2558-09[SSV-DUP], B361620-BLK1, B361620-BS1, B361620-DUP1, S098241-CCV1
The results of analyses reported only relate to samples submitted to Con-Test, a Pace 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.
Meghan E. Kelley
Reporting Specialist
Page 3 of 38
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: Charlotte, NC
Date Received: 12/16/2023
Work Order: 23L2558Sample Description/Location:
Field Sample #: SSV-1
Sample ID: 23L2558-01
Sample Matrix: Sub Slab
Initial Vacuum(in Hg): -27
Final Vacuum(in Hg): -5
Receipt Vacuum(in Hg): -3.5
Sampled: 12/14/2023 11:15
Canister ID: 2802
Flow Controller ID: 4463
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 570 8.0 12/19/23 19:51 CMRE1400 4191.9 4.5
Benzene 0.29 0.20 12/19/23 19:51 CMR0.92 40.640.062 0.20
Benzyl chloride ND 0.20 12/19/23 19:51 CMRND41.00.11 0.56
Bromodichloromethane ND 0.20 12/19/23 19:51 CMRND41.30.054 0.36
Bromoform ND 0.20 12/19/23 19:51 CMRND42.10.071 0.73
Bromomethane ND 0.20 12/19/23 19:51 CMRND40.780.11 0.41
1,3-Butadiene ND 0.20 12/19/23 19:51 CMRND40.440.17 0.37
2-Butanone (MEK)16 8.0 12/19/23 19:51 CMR47 4242.2 6.6
Carbon Disulfide 2.4 2.0 12/19/23 19:51 CMR7.3 46.20.38 1.2
Carbon Tetrachloride ND 0.20 12/19/23 19:51 CMRV-34 ND 41.30.058 0.36
Chlorobenzene ND 0.20 12/19/23 19:51 CMRND40.920.050 0.23
Chloroethane ND 0.20 12/19/23 19:51 CMRND40.530.13 0.33
Chloroform 0.22 0.20 12/19/23 19:51 CMR1.1 40.980.052 0.25
Chloromethane 0.16 0.40 12/19/23 19:51 CMRJ0.32 40.830.082 0.17
Cyclohexane 0.24 0.20 12/19/23 19:51 CMR0.81 40.690.088 0.30
Dibromochloromethane ND 0.20 12/19/23 19:51 CMRND41.70.054 0.46
1,2-Dibromoethane (EDB)ND 0.20 12/19/23 19:51 CMRND41.50.067 0.51
1,2-Dichlorobenzene ND 0.20 12/19/23 19:51 CMRND41.20.070 0.42
1,3-Dichlorobenzene ND 0.20 12/19/23 19:51 CMRND41.20.074 0.45
1,4-Dichlorobenzene ND 0.20 12/19/23 19:51 CMRND41.20.074 0.44
Dichlorodifluoromethane (Freon 12)0.25 0.20 12/19/23 19:51 CMR1.2 40.990.084 0.42
1,1-Dichloroethane ND 0.20 12/19/23 19:51 CMRND40.810.064 0.26
1,2-Dichloroethane ND 0.20 12/19/23 19:51 CMRND40.810.075 0.30
1,1-Dichloroethylene ND 0.20 12/19/23 19:51 CMRND40.790.057 0.23
cis-1,2-Dichloroethylene ND 0.20 12/19/23 19:51 CMRND40.790.062 0.24
trans-1,2-Dichloroethylene ND 0.20 12/19/23 19:51 CMRND40.790.065 0.26
1,2-Dichloropropane ND 0.20 12/19/23 19:51 CMRND40.920.055 0.25
cis-1,3-Dichloropropene ND 0.20 12/19/23 19:51 CMRND40.910.090 0.41
trans-1,3-Dichloropropene ND 0.20 12/19/23 19:51 CMRND40.910.10 0.47
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)ND 0.20 12/19/23 19:51 CMRND41.40.080 0.56
1,4-Dioxane 1.3 2.0 12/19/23 19:51 CMRJ4.6 47.20.98 3.5
Ethanol 320 8.0 12/19/23 19:51 CMRE610 4155.3 10.0
Ethyl Acetate ND 2.0 12/19/23 19:51 CMRND47.20.58 2.1
Ethylbenzene 0.26 0.20 12/19/23 19:51 CMR1.1 40.870.058 0.25
4-Ethyltoluene ND 0.20 12/19/23 19:51 CMRND40.980.087 0.43
Heptane 0.23 0.20 12/19/23 19:51 CMR0.93 40.820.13 0.52
Hexachlorobutadiene ND 0.20 12/19/23 19:51 CMRND42.10.12 1.2
Hexane ND 8.0 12/19/23 19:51 CMRND4282.6 9.3
2-Hexanone (MBK)ND 0.20 12/19/23 19:51 CMRND40.820.087 0.35
Isopropanol 12 8.0 12/19/23 19:51 CMR30 4202.5 6.2
Methyl tert-Butyl Ether (MTBE)ND 0.20 12/19/23 19:51 CMRND40.720.098 0.35
Methylene Chloride ND 2.0 12/19/23 19:51 CMRND46.90.54 1.9
4-Methyl-2-pentanone (MIBK)0.73 0.20 12/19/23 19:51 CMR3.0 40.820.11 0.43
Naphthalene ND 0.20 12/19/23 19:51 CMRND41.00.13 0.70
Propene ND 8.0 12/19/23 19:51 CMRND4142.2 3.7
Styrene 0.91 0.20 12/19/23 19:51 CMR3.9 40.850.11 0.46
1,1,2,2-Tetrachloroethane ND 0.20 12/19/23 19:51 CMRND41.40.050 0.34
Page 4 of 38
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: Charlotte, NC
Date Received: 12/16/2023
Work Order: 23L2558Sample Description/Location:
Field Sample #: SSV-1
Sample ID: 23L2558-01
Sample Matrix: Sub Slab
Initial Vacuum(in Hg): -27
Final Vacuum(in Hg): -5
Receipt Vacuum(in Hg): -3.5
Sampled: 12/14/2023 11:15
Canister ID: 2802
Flow Controller ID: 4463
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 ND 0.20 12/19/23 19:51 CMRND41.40.075 0.51
Tetrahydrofuran 2.5 2.0 12/19/23 19:51 CMR7.3 45.90.41 1.2
Toluene 0.76 0.20 12/19/23 19:51 CMR2.8 40.750.073 0.27
1,2,4-Trichlorobenzene ND 0.20 12/19/23 19:51 CMRND41.50.11 0.80
1,1,1-Trichloroethane ND 0.20 12/19/23 19:51 CMRND41.10.063 0.34
1,1,2-Trichloroethane ND 0.20 12/19/23 19:51 CMRND41.10.051 0.28
Trichloroethylene ND 0.20 12/19/23 19:51 CMRND41.10.082 0.44
Trichlorofluoromethane (Freon 11)0.22 0.80 12/19/23 19:51 CMRJ1.3 44.50.082 0.46
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)0.072 0.80 12/19/23 19:51 CMRJ0.55 46.10.044 0.34
1,2,4-Trimethylbenzene 0.16 0.20 12/19/23 19:51 CMRJ0.77 40.980.092 0.45
1,3,5-Trimethylbenzene ND 0.20 12/19/23 19:51 CMRND40.980.10 0.51
Vinyl Acetate ND 4.0 12/19/23 19:51 CMRND4140.71 2.5
Vinyl Chloride ND 0.20 12/19/23 19:51 CMRND40.510.091 0.23
m&p-Xylene 0.40 0.40 12/19/23 19:51 CMR1.7 41.70.14 0.61
o-Xylene 0.51 0.20 12/19/23 19:51 CMR2.2 40.870.073 0.32
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1)95.1 12/19/23 19:5170-130
Page 5 of 38
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: Charlotte, NC
Date Received: 12/16/2023
Work Order: 23L2558Sample Description/Location:
Field Sample #: SSV-2
Sample ID: 23L2558-02
Sample Matrix: Sub Slab
Initial Vacuum(in Hg): -29
Final Vacuum(in Hg): -5
Receipt Vacuum(in Hg): -5.0
Sampled: 12/14/2023 11:38
Canister ID: 2887
Flow Controller ID: 4234
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 510 8.0 12/19/23 21:14 CMRE1200 4191.9 4.5
Benzene 0.26 0.20 12/19/23 21:14 CMR0.82 40.640.062 0.20
Benzyl chloride ND 0.20 12/19/23 21:14 CMRND41.00.11 0.56
Bromodichloromethane ND 0.20 12/19/23 21:14 CMRND41.30.054 0.36
Bromoform ND 0.20 12/19/23 21:14 CMRND42.10.071 0.73
Bromomethane ND 0.20 12/19/23 21:14 CMRND40.780.11 0.41
1,3-Butadiene ND 0.20 12/19/23 21:14 CMRND40.440.17 0.37
2-Butanone (MEK)20 8.0 12/19/23 21:14 CMR58 4242.2 6.6
Carbon Disulfide 1.0 2.0 12/19/23 21:14 CMRJ3.1 46.20.38 1.2
Carbon Tetrachloride ND 0.20 12/19/23 21:14 CMRV-34 ND 41.30.058 0.36
Chlorobenzene ND 0.20 12/19/23 21:14 CMRND40.920.050 0.23
Chloroethane ND 0.20 12/19/23 21:14 CMRND40.530.13 0.33
Chloroform 0.21 0.20 12/19/23 21:14 CMR1.0 40.980.052 0.25
Chloromethane 0.16 0.40 12/19/23 21:14 CMRJ0.33 40.830.082 0.17
Cyclohexane 0.18 0.20 12/19/23 21:14 CMRJ0.62 40.690.088 0.30
Dibromochloromethane ND 0.20 12/19/23 21:14 CMRND41.70.054 0.46
1,2-Dibromoethane (EDB)ND 0.20 12/19/23 21:14 CMRND41.50.067 0.51
1,2-Dichlorobenzene ND 0.20 12/19/23 21:14 CMRND41.20.070 0.42
1,3-Dichlorobenzene ND 0.20 12/19/23 21:14 CMRND41.20.074 0.45
1,4-Dichlorobenzene ND 0.20 12/19/23 21:14 CMRND41.20.074 0.44
Dichlorodifluoromethane (Freon 12)0.25 0.20 12/19/23 21:14 CMR1.2 40.990.084 0.42
1,1-Dichloroethane ND 0.20 12/19/23 21:14 CMRND40.810.064 0.26
1,2-Dichloroethane ND 0.20 12/19/23 21:14 CMRND40.810.075 0.30
1,1-Dichloroethylene ND 0.20 12/19/23 21:14 CMRND40.790.057 0.23
cis-1,2-Dichloroethylene ND 0.20 12/19/23 21:14 CMRND40.790.062 0.24
trans-1,2-Dichloroethylene ND 0.20 12/19/23 21:14 CMRND40.790.065 0.26
1,2-Dichloropropane ND 0.20 12/19/23 21:14 CMRND40.920.055 0.25
cis-1,3-Dichloropropene ND 0.20 12/19/23 21:14 CMRND40.910.090 0.41
trans-1,3-Dichloropropene ND 0.20 12/19/23 21:14 CMRND40.910.10 0.47
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)ND 0.20 12/19/23 21:14 CMRND41.40.080 0.56
1,4-Dioxane 1.7 2.0 12/19/23 21:14 CMRJ6.1 47.20.98 3.5
Ethanol 340 8.0 12/19/23 21:14 CMRE630 4155.3 10.0
Ethyl Acetate ND 2.0 12/19/23 21:14 CMRND47.20.58 2.1
Ethylbenzene 0.28 0.20 12/19/23 21:14 CMR1.2 40.870.058 0.25
4-Ethyltoluene ND 0.20 12/19/23 21:14 CMRND40.980.087 0.43
Heptane 0.16 0.20 12/19/23 21:14 CMRJ0.66 40.820.13 0.52
Hexachlorobutadiene ND 0.20 12/19/23 21:14 CMRND42.10.12 1.2
Hexane ND 8.0 12/19/23 21:14 CMRND4282.6 9.3
2-Hexanone (MBK)0.28 0.20 12/19/23 21:14 CMR1.2 40.820.087 0.35
Isopropanol 12 8.0 12/19/23 21:14 CMR31 4202.5 6.2
Methyl tert-Butyl Ether (MTBE)ND 0.20 12/19/23 21:14 CMRND40.720.098 0.35
Methylene Chloride ND 2.0 12/19/23 21:14 CMRND46.90.54 1.9
4-Methyl-2-pentanone (MIBK)0.84 0.20 12/19/23 21:14 CMR3.4 40.820.11 0.43
Naphthalene ND 0.20 12/19/23 21:14 CMRND41.00.13 0.70
Propene ND 8.0 12/19/23 21:14 CMRND4142.2 3.7
Styrene 0.67 0.20 12/19/23 21:14 CMR2.8 40.850.11 0.46
1,1,2,2-Tetrachloroethane ND 0.20 12/19/23 21:14 CMRND41.40.050 0.34
Page 6 of 38
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: Charlotte, NC
Date Received: 12/16/2023
Work Order: 23L2558Sample Description/Location:
Field Sample #: SSV-2
Sample ID: 23L2558-02
Sample Matrix: Sub Slab
Initial Vacuum(in Hg): -29
Final Vacuum(in Hg): -5
Receipt Vacuum(in Hg): -5.0
Sampled: 12/14/2023 11:38
Canister ID: 2887
Flow Controller ID: 4234
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 ND 0.20 12/19/23 21:14 CMRND41.40.075 0.51
Tetrahydrofuran 2.9 2.0 12/19/23 21:14 CMR8.6 45.90.41 1.2
Toluene 1.0 0.20 12/19/23 21:14 CMR3.8 40.750.073 0.27
1,2,4-Trichlorobenzene ND 0.20 12/19/23 21:14 CMRND41.50.11 0.80
1,1,1-Trichloroethane ND 0.20 12/19/23 21:14 CMRND41.10.063 0.34
1,1,2-Trichloroethane ND 0.20 12/19/23 21:14 CMRND41.10.051 0.28
Trichloroethylene ND 0.20 12/19/23 21:14 CMRND41.10.082 0.44
Trichlorofluoromethane (Freon 11)0.24 0.80 12/19/23 21:14 CMRJ1.3 44.50.082 0.46
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)0.048 0.80 12/19/23 21:14 CMRJ0.37 46.10.044 0.34
1,2,4-Trimethylbenzene 0.10 0.20 12/19/23 21:14 CMRJ0.49 40.980.092 0.45
1,3,5-Trimethylbenzene ND 0.20 12/19/23 21:14 CMRND40.980.10 0.51
Vinyl Acetate ND 4.0 12/19/23 21:14 CMRND4140.71 2.5
Vinyl Chloride ND 0.20 12/19/23 21:14 CMRND40.510.091 0.23
m&p-Xylene 0.29 0.40 12/19/23 21:14 CMRJ1.3 41.70.14 0.61
o-Xylene 0.16 0.20 12/19/23 21:14 CMRJ0.68 40.870.073 0.32
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1)98.2 12/19/23 21:1470-130
Page 7 of 38
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: Charlotte, NC
Date Received: 12/16/2023
Work Order: 23L2558Sample Description/Location:
Field Sample #: SSV-3
Sample ID: 23L2558-03
Sample Matrix: Sub Slab
Initial Vacuum(in Hg): -28
Final Vacuum(in Hg): -5
Receipt Vacuum(in Hg): -4.0
Sampled: 12/14/2023 12:08
Canister ID: 2793
Flow Controller ID: 4152
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 540 8.0 12/19/23 21:54 CMRE1300 4191.9 4.5
Benzene 0.36 0.20 12/19/23 21:54 CMR1.2 40.640.062 0.20
Benzyl chloride ND 0.20 12/19/23 21:54 CMRND41.00.11 0.56
Bromodichloromethane ND 0.20 12/19/23 21:54 CMRND41.30.054 0.36
Bromoform ND 0.20 12/19/23 21:54 CMRND42.10.071 0.73
Bromomethane ND 0.20 12/19/23 21:54 CMRND40.780.11 0.41
1,3-Butadiene ND 0.20 12/19/23 21:54 CMRND40.440.17 0.37
2-Butanone (MEK)5.3 8.0 12/19/23 21:54 CMRJ16 4242.2 6.6
Carbon Disulfide 0.83 2.0 12/19/23 21:54 CMRJ2.6 46.20.38 1.2
Carbon Tetrachloride ND 0.20 12/19/23 21:54 CMRV-34 ND 41.30.058 0.36
Chlorobenzene ND 0.20 12/19/23 21:54 CMRND40.920.050 0.23
Chloroethane ND 0.20 12/19/23 21:54 CMRND40.530.13 0.33
Chloroform 0.092 0.20 12/19/23 21:54 CMRJ0.45 40.980.052 0.25
Chloromethane 0.18 0.40 12/19/23 21:54 CMRJ0.37 40.830.082 0.17
Cyclohexane 0.30 0.20 12/19/23 21:54 CMR1.0 40.690.088 0.30
Dibromochloromethane ND 0.20 12/19/23 21:54 CMRND41.70.054 0.46
1,2-Dibromoethane (EDB)ND 0.20 12/19/23 21:54 CMRND41.50.067 0.51
1,2-Dichlorobenzene ND 0.20 12/19/23 21:54 CMRND41.20.070 0.42
1,3-Dichlorobenzene ND 0.20 12/19/23 21:54 CMRND41.20.074 0.45
1,4-Dichlorobenzene ND 0.20 12/19/23 21:54 CMRND41.20.074 0.44
Dichlorodifluoromethane (Freon 12)0.29 0.20 12/19/23 21:54 CMR1.4 40.990.084 0.42
1,1-Dichloroethane ND 0.20 12/19/23 21:54 CMRND40.810.064 0.26
1,2-Dichloroethane ND 0.20 12/19/23 21:54 CMRND40.810.075 0.30
1,1-Dichloroethylene ND 0.20 12/19/23 21:54 CMRND40.790.057 0.23
cis-1,2-Dichloroethylene ND 0.20 12/19/23 21:54 CMRND40.790.062 0.24
trans-1,2-Dichloroethylene ND 0.20 12/19/23 21:54 CMRND40.790.065 0.26
1,2-Dichloropropane ND 0.20 12/19/23 21:54 CMRND40.920.055 0.25
cis-1,3-Dichloropropene ND 0.20 12/19/23 21:54 CMRND40.910.090 0.41
trans-1,3-Dichloropropene ND 0.20 12/19/23 21:54 CMRND40.910.10 0.47
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)ND 0.20 12/19/23 21:54 CMRND41.40.080 0.56
1,4-Dioxane 1.1 2.0 12/19/23 21:54 CMRJ4.0 47.20.98 3.5
Ethanol 200 8.0 12/19/23 21:54 CMR370 4155.3 10.0
Ethyl Acetate ND 2.0 12/19/23 21:54 CMRND47.20.58 2.1
Ethylbenzene 0.22 0.20 12/19/23 21:54 CMR0.97 40.870.058 0.25
4-Ethyltoluene 0.18 0.20 12/19/23 21:54 CMRJ0.88 40.980.087 0.43
Heptane 0.45 0.20 12/19/23 21:54 CMR1.8 40.820.13 0.52
Hexachlorobutadiene ND 0.20 12/19/23 21:54 CMRND42.10.12 1.2
Hexane ND 8.0 12/19/23 21:54 CMRND4282.6 9.3
2-Hexanone (MBK)ND 0.20 12/19/23 21:54 CMRND40.820.087 0.35
Isopropanol 9.6 8.0 12/19/23 21:54 CMR24 4202.5 6.2
Methyl tert-Butyl Ether (MTBE)ND 0.20 12/19/23 21:54 CMRND40.720.098 0.35
Methylene Chloride ND 2.0 12/19/23 21:54 CMRND46.90.54 1.9
4-Methyl-2-pentanone (MIBK)0.56 0.20 12/19/23 21:54 CMR2.3 40.820.11 0.43
Naphthalene ND 0.20 12/19/23 21:54 CMRND41.00.13 0.70
Propene ND 8.0 12/19/23 21:54 CMRND4142.2 3.7
Styrene 1.3 0.20 12/19/23 21:54 CMR5.4 40.850.11 0.46
1,1,2,2-Tetrachloroethane ND 0.20 12/19/23 21:54 CMRND41.40.050 0.34
Page 8 of 38
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: Charlotte, NC
Date Received: 12/16/2023
Work Order: 23L2558Sample Description/Location:
Field Sample #: SSV-3
Sample ID: 23L2558-03
Sample Matrix: Sub Slab
Initial Vacuum(in Hg): -28
Final Vacuum(in Hg): -5
Receipt Vacuum(in Hg): -4.0
Sampled: 12/14/2023 12:08
Canister ID: 2793
Flow Controller ID: 4152
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 ND 0.20 12/19/23 21:54 CMRND41.40.075 0.51
Tetrahydrofuran 2.6 2.0 12/19/23 21:54 CMR7.6 45.90.41 1.2
Toluene 0.98 0.20 12/19/23 21:54 CMR3.7 40.750.073 0.27
1,2,4-Trichlorobenzene ND 0.20 12/19/23 21:54 CMRND41.50.11 0.80
1,1,1-Trichloroethane ND 0.20 12/19/23 21:54 CMRND41.10.063 0.34
1,1,2-Trichloroethane ND 0.20 12/19/23 21:54 CMRND41.10.051 0.28
Trichloroethylene ND 0.20 12/19/23 21:54 CMRND41.10.082 0.44
Trichlorofluoromethane (Freon 11)0.22 0.80 12/19/23 21:54 CMRJ1.2 44.50.082 0.46
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)0.052 0.80 12/19/23 21:54 CMRJ0.40 46.10.044 0.34
1,2,4-Trimethylbenzene 0.43 0.20 12/19/23 21:54 CMR2.1 40.980.092 0.45
1,3,5-Trimethylbenzene 0.38 0.20 12/19/23 21:54 CMR1.9 40.980.10 0.51
Vinyl Acetate ND 4.0 12/19/23 21:54 CMRND4140.71 2.5
Vinyl Chloride ND 0.20 12/19/23 21:54 CMRND40.510.091 0.23
m&p-Xylene 0.50 0.40 12/19/23 21:54 CMR2.2 41.70.14 0.61
o-Xylene 0.28 0.20 12/19/23 21:54 CMR1.2 40.870.073 0.32
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1)95.9 12/19/23 21:5470-130
Page 9 of 38
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: Charlotte, NC
Date Received: 12/16/2023
Work Order: 23L2558Sample Description/Location:
Field Sample #: SSV-4
Sample ID: 23L2558-04
Sample Matrix: Sub Slab
Initial Vacuum(in Hg): -27.5
Final Vacuum(in Hg): -5
Receipt Vacuum(in Hg): -0.2
Sampled: 12/14/2023 14:31
Canister ID: 2859
Flow Controller ID: 4513
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 310 8.0 12/19/23 22:35 CMRE740 4191.9 4.5
Benzene 0.44 0.20 12/19/23 22:35 CMR1.4 40.640.062 0.20
Benzyl chloride ND 0.20 12/19/23 22:35 CMRND41.00.11 0.56
Bromodichloromethane ND 0.20 12/19/23 22:35 CMRND41.30.054 0.36
Bromoform ND 0.20 12/19/23 22:35 CMRND42.10.071 0.73
Bromomethane ND 0.20 12/19/23 22:35 CMRND40.780.11 0.41
1,3-Butadiene ND 0.20 12/19/23 22:35 CMRND40.440.17 0.37
2-Butanone (MEK)8.2 8.0 12/19/23 22:35 CMR24 4242.2 6.6
Carbon Disulfide 1.5 2.0 12/19/23 22:35 CMRJ4.8 46.20.38 1.2
Carbon Tetrachloride ND 0.20 12/19/23 22:35 CMRV-34 ND 41.30.058 0.36
Chlorobenzene ND 0.20 12/19/23 22:35 CMRND40.920.050 0.23
Chloroethane ND 0.20 12/19/23 22:35 CMRND40.530.13 0.33
Chloroform 0.072 0.20 12/19/23 22:35 CMRJ0.35 40.980.052 0.25
Chloromethane 0.20 0.40 12/19/23 22:35 CMRJ0.41 40.830.082 0.17
Cyclohexane 0.18 0.20 12/19/23 22:35 CMRJ0.63 40.690.088 0.30
Dibromochloromethane ND 0.20 12/19/23 22:35 CMRND41.70.054 0.46
1,2-Dibromoethane (EDB)ND 0.20 12/19/23 22:35 CMRND41.50.067 0.51
1,2-Dichlorobenzene ND 0.20 12/19/23 22:35 CMRND41.20.070 0.42
1,3-Dichlorobenzene ND 0.20 12/19/23 22:35 CMRND41.20.074 0.45
1,4-Dichlorobenzene ND 0.20 12/19/23 22:35 CMRND41.20.074 0.44
Dichlorodifluoromethane (Freon 12)0.43 0.20 12/19/23 22:35 CMR2.1 40.990.084 0.42
1,1-Dichloroethane ND 0.20 12/19/23 22:35 CMRND40.810.064 0.26
1,2-Dichloroethane ND 0.20 12/19/23 22:35 CMRND40.810.075 0.30
1,1-Dichloroethylene ND 0.20 12/19/23 22:35 CMRND40.790.057 0.23
cis-1,2-Dichloroethylene 0.096 0.20 12/19/23 22:35 CMRJ0.38 40.790.062 0.24
trans-1,2-Dichloroethylene ND 0.20 12/19/23 22:35 CMRND40.790.065 0.26
1,2-Dichloropropane ND 0.20 12/19/23 22:35 CMRND40.920.055 0.25
cis-1,3-Dichloropropene ND 0.20 12/19/23 22:35 CMRND40.910.090 0.41
trans-1,3-Dichloropropene ND 0.20 12/19/23 22:35 CMRND40.910.10 0.47
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)ND 0.20 12/19/23 22:35 CMRND41.40.080 0.56
1,4-Dioxane ND 2.0 12/19/23 22:35 CMRND47.20.98 3.5
Ethanol 160 8.0 12/19/23 22:35 CMR310 4155.3 10.0
Ethyl Acetate 5.1 2.0 12/19/23 22:35 CMR18 47.20.58 2.1
Ethylbenzene 0.19 0.20 12/19/23 22:35 CMRJ0.83 40.870.058 0.25
4-Ethyltoluene ND 0.20 12/19/23 22:35 CMRND40.980.087 0.43
Heptane 0.63 0.20 12/19/23 22:35 CMR2.6 40.820.13 0.52
Hexachlorobutadiene ND 0.20 12/19/23 22:35 CMRND42.10.12 1.2
Hexane ND 8.0 12/19/23 22:35 CMRND4282.6 9.3
2-Hexanone (MBK)0.34 0.20 12/19/23 22:35 CMR1.4 40.820.087 0.35
Isopropanol 7.6 8.0 12/19/23 22:35 CMRJ19 4202.5 6.2
Methyl tert-Butyl Ether (MTBE)ND 0.20 12/19/23 22:35 CMRND40.720.098 0.35
Methylene Chloride 0.84 2.0 12/19/23 22:35 CMRJ2.9 46.90.54 1.9
4-Methyl-2-pentanone (MIBK)0.79 0.20 12/19/23 22:35 CMR3.2 40.820.11 0.43
Naphthalene 0.14 0.20 12/19/23 22:35 CMRJ0.71 41.00.13 0.70
Propene ND 8.0 12/19/23 22:35 CMRND4142.2 3.7
Styrene 0.46 0.20 12/19/23 22:35 CMR1.9 40.850.11 0.46
1,1,2,2-Tetrachloroethane ND 0.20 12/19/23 22:35 CMRND41.40.050 0.34
Page 10 of 38
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: Charlotte, NC
Date Received: 12/16/2023
Work Order: 23L2558Sample Description/Location:
Field Sample #: SSV-4
Sample ID: 23L2558-04
Sample Matrix: Sub Slab
Initial Vacuum(in Hg): -27.5
Final Vacuum(in Hg): -5
Receipt Vacuum(in Hg): -0.2
Sampled: 12/14/2023 14:31
Canister ID: 2859
Flow Controller ID: 4513
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 ND 0.20 12/19/23 22:35 CMRND41.40.075 0.51
Tetrahydrofuran 0.48 2.0 12/19/23 22:35 CMRJ1.4 45.90.41 1.2
Toluene 1.1 0.20 12/19/23 22:35 CMR4.1 40.750.073 0.27
1,2,4-Trichlorobenzene ND 0.20 12/19/23 22:35 CMRND41.50.11 0.80
1,1,1-Trichloroethane ND 0.20 12/19/23 22:35 CMRND41.10.063 0.34
1,1,2-Trichloroethane ND 0.20 12/19/23 22:35 CMRND41.10.051 0.28
Trichloroethylene ND 0.20 12/19/23 22:35 CMRND41.10.082 0.44
Trichlorofluoromethane (Freon 11)0.15 0.80 12/19/23 22:35 CMRJ0.85 44.50.082 0.46
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)0.056 0.80 12/19/23 22:35 CMRJ0.43 46.10.044 0.34
1,2,4-Trimethylbenzene 0.31 0.20 12/19/23 22:35 CMR1.5 40.980.092 0.45
1,3,5-Trimethylbenzene ND 0.20 12/19/23 22:35 CMRND40.980.10 0.51
Vinyl Acetate ND 4.0 12/19/23 22:35 CMRND4140.71 2.5
Vinyl Chloride ND 0.20 12/19/23 22:35 CMRND40.510.091 0.23
m&p-Xylene 0.56 0.40 12/19/23 22:35 CMR2.4 41.70.14 0.61
o-Xylene 0.25 0.20 12/19/23 22:35 CMR1.1 40.870.073 0.32
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1)95.4 12/19/23 22:3570-130
Page 11 of 38
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: Charlotte, NC
Date Received: 12/16/2023
Work Order: 23L2558Sample Description/Location:
Field Sample #: SSV-5
Sample ID: 23L2558-05
Sample Matrix: Sub Slab
Initial Vacuum(in Hg): -27
Final Vacuum(in Hg): -5
Receipt Vacuum(in Hg): -2.4
Sampled: 12/14/2023 14:05
Canister ID: 2118
Flow Controller ID: 4531
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 330 8.0 12/19/23 23:15 CMRE790 4191.9 4.5
Benzene 0.31 0.20 12/19/23 23:15 CMR1.00 40.640.062 0.20
Benzyl chloride ND 0.20 12/19/23 23:15 CMRND41.00.11 0.56
Bromodichloromethane ND 0.20 12/19/23 23:15 CMRND41.30.054 0.36
Bromoform ND 0.20 12/19/23 23:15 CMRND42.10.071 0.73
Bromomethane ND 0.20 12/19/23 23:15 CMRND40.780.11 0.41
1,3-Butadiene ND 0.20 12/19/23 23:15 CMRND40.440.17 0.37
2-Butanone (MEK)9.2 8.0 12/19/23 23:15 CMR27 4242.2 6.6
Carbon Disulfide 1.3 2.0 12/19/23 23:15 CMRJ4.1 46.20.38 1.2
Carbon Tetrachloride ND 0.20 12/19/23 23:15 CMRV-34 ND 41.30.058 0.36
Chlorobenzene ND 0.20 12/19/23 23:15 CMRND40.920.050 0.23
Chloroethane ND 0.20 12/19/23 23:15 CMRND40.530.13 0.33
Chloroform 0.12 0.20 12/19/23 23:15 CMRJ0.61 40.980.052 0.25
Chloromethane 0.28 0.40 12/19/23 23:15 CMRJ0.58 40.830.082 0.17
Cyclohexane ND 0.20 12/19/23 23:15 CMRND40.690.088 0.30
Dibromochloromethane ND 0.20 12/19/23 23:15 CMRND41.70.054 0.46
1,2-Dibromoethane (EDB)ND 0.20 12/19/23 23:15 CMRND41.50.067 0.51
1,2-Dichlorobenzene ND 0.20 12/19/23 23:15 CMRND41.20.070 0.42
1,3-Dichlorobenzene ND 0.20 12/19/23 23:15 CMRND41.20.074 0.45
1,4-Dichlorobenzene ND 0.20 12/19/23 23:15 CMRND41.20.074 0.44
Dichlorodifluoromethane (Freon 12)0.38 0.20 12/19/23 23:15 CMR1.9 40.990.084 0.42
1,1-Dichloroethane ND 0.20 12/19/23 23:15 CMRND40.810.064 0.26
1,2-Dichloroethane ND 0.20 12/19/23 23:15 CMRND40.810.075 0.30
1,1-Dichloroethylene ND 0.20 12/19/23 23:15 CMRND40.790.057 0.23
cis-1,2-Dichloroethylene ND 0.20 12/19/23 23:15 CMRND40.790.062 0.24
trans-1,2-Dichloroethylene ND 0.20 12/19/23 23:15 CMRND40.790.065 0.26
1,2-Dichloropropane ND 0.20 12/19/23 23:15 CMRND40.920.055 0.25
cis-1,3-Dichloropropene ND 0.20 12/19/23 23:15 CMRND40.910.090 0.41
trans-1,3-Dichloropropene ND 0.20 12/19/23 23:15 CMRND40.910.10 0.47
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)0.088 0.20 12/19/23 23:15 CMRJ0.62 41.40.080 0.56
1,4-Dioxane ND 2.0 12/19/23 23:15 CMRND47.20.98 3.5
Ethanol 260 8.0 12/19/23 23:15 CMRE500 4155.3 10.0
Ethyl Acetate 6.9 2.0 12/19/23 23:15 CMR25 47.20.58 2.1
Ethylbenzene 0.15 0.20 12/19/23 23:15 CMRJ0.64 40.870.058 0.25
4-Ethyltoluene ND 0.20 12/19/23 23:15 CMRND40.980.087 0.43
Heptane 0.21 0.20 12/19/23 23:15 CMR0.85 40.820.13 0.52
Hexachlorobutadiene ND 0.20 12/19/23 23:15 CMRND42.10.12 1.2
Hexane ND 8.0 12/19/23 23:15 CMRND4282.6 9.3
2-Hexanone (MBK)0.43 0.20 12/19/23 23:15 CMR1.8 40.820.087 0.35
Isopropanol 11 8.0 12/19/23 23:15 CMR26 4202.5 6.2
Methyl tert-Butyl Ether (MTBE)ND 0.20 12/19/23 23:15 CMRND40.720.098 0.35
Methylene Chloride ND 2.0 12/19/23 23:15 CMRND46.90.54 1.9
4-Methyl-2-pentanone (MIBK)0.64 0.20 12/19/23 23:15 CMR2.6 40.820.11 0.43
Naphthalene ND 0.20 12/19/23 23:15 CMRND41.00.13 0.70
Propene ND 8.0 12/19/23 23:15 CMRND4142.2 3.7
Styrene 0.24 0.20 12/19/23 23:15 CMR1.0 40.850.11 0.46
1,1,2,2-Tetrachloroethane ND 0.20 12/19/23 23:15 CMRND41.40.050 0.34
Page 12 of 38
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: Charlotte, NC
Date Received: 12/16/2023
Work Order: 23L2558Sample Description/Location:
Field Sample #: SSV-5
Sample ID: 23L2558-05
Sample Matrix: Sub Slab
Initial Vacuum(in Hg): -27
Final Vacuum(in Hg): -5
Receipt Vacuum(in Hg): -2.4
Sampled: 12/14/2023 14:05
Canister ID: 2118
Flow Controller ID: 4531
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 ND 0.20 12/19/23 23:15 CMRND41.40.075 0.51
Tetrahydrofuran ND 2.0 12/19/23 23:15 CMRND45.90.41 1.2
Toluene 1.8 0.20 12/19/23 23:15 CMR6.7 40.750.073 0.27
1,2,4-Trichlorobenzene ND 0.20 12/19/23 23:15 CMRND41.50.11 0.80
1,1,1-Trichloroethane ND 0.20 12/19/23 23:15 CMRND41.10.063 0.34
1,1,2-Trichloroethane ND 0.20 12/19/23 23:15 CMRND41.10.051 0.28
Trichloroethylene ND 0.20 12/19/23 23:15 CMRND41.10.082 0.44
Trichlorofluoromethane (Freon 11)0.24 0.80 12/19/23 23:15 CMRJ1.4 44.50.082 0.46
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)0.056 0.80 12/19/23 23:15 CMRJ0.43 46.10.044 0.34
1,2,4-Trimethylbenzene 0.13 0.20 12/19/23 23:15 CMRJ0.65 40.980.092 0.45
1,3,5-Trimethylbenzene ND 0.20 12/19/23 23:15 CMRND40.980.10 0.51
Vinyl Acetate 0.85 4.0 12/19/23 23:15 CMRJ3.0 4140.71 2.5
Vinyl Chloride ND 0.20 12/19/23 23:15 CMRND40.510.091 0.23
m&p-Xylene 0.48 0.40 12/19/23 23:15 CMR2.1 41.70.14 0.61
o-Xylene 0.22 0.20 12/19/23 23:15 CMR0.96 40.870.073 0.32
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1)96.4 12/19/23 23:1570-130
Page 13 of 38
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: Charlotte, NC
Date Received: 12/16/2023
Work Order: 23L2558Sample Description/Location:
Field Sample #: SSV-6
Sample ID: 23L2558-06
Sample Matrix: Sub Slab
Initial Vacuum(in Hg): -29.5
Final Vacuum(in Hg): -5
Receipt Vacuum(in Hg): -1.9
Sampled: 12/14/2023 13:41
Canister ID: 2109
Flow Controller ID: 4489
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 330 8.0 12/19/23 23:55 CMRE770 4191.9 4.5
Benzene 0.30 0.20 12/19/23 23:55 CMR0.96 40.640.062 0.20
Benzyl chloride ND 0.20 12/19/23 23:55 CMRND41.00.11 0.56
Bromodichloromethane ND 0.20 12/19/23 23:55 CMRND41.30.054 0.36
Bromoform ND 0.20 12/19/23 23:55 CMRND42.10.071 0.73
Bromomethane ND 0.20 12/19/23 23:55 CMRND40.780.11 0.41
1,3-Butadiene ND 0.20 12/19/23 23:55 CMRND40.440.17 0.37
2-Butanone (MEK)3.5 8.0 12/19/23 23:55 CMRJ10 4242.2 6.6
Carbon Disulfide 0.60 2.0 12/19/23 23:55 CMRJ1.9 46.20.38 1.2
Carbon Tetrachloride ND 0.20 12/19/23 23:55 CMRV-34 ND 41.30.058 0.36
Chlorobenzene ND 0.20 12/19/23 23:55 CMRND40.920.050 0.23
Chloroethane ND 0.20 12/19/23 23:55 CMRND40.530.13 0.33
Chloroform 0.12 0.20 12/19/23 23:55 CMRJ0.61 40.980.052 0.25
Chloromethane 0.32 0.40 12/19/23 23:55 CMRJ0.67 40.830.082 0.17
Cyclohexane ND 0.20 12/19/23 23:55 CMRND40.690.088 0.30
Dibromochloromethane ND 0.20 12/19/23 23:55 CMRND41.70.054 0.46
1,2-Dibromoethane (EDB)ND 0.20 12/19/23 23:55 CMRND41.50.067 0.51
1,2-Dichlorobenzene ND 0.20 12/19/23 23:55 CMRND41.20.070 0.42
1,3-Dichlorobenzene ND 0.20 12/19/23 23:55 CMRND41.20.074 0.45
1,4-Dichlorobenzene ND 0.20 12/19/23 23:55 CMRND41.20.074 0.44
Dichlorodifluoromethane (Freon 12)0.42 0.20 12/19/23 23:55 CMR2.1 40.990.084 0.42
1,1-Dichloroethane ND 0.20 12/19/23 23:55 CMRND40.810.064 0.26
1,2-Dichloroethane ND 0.20 12/19/23 23:55 CMRND40.810.075 0.30
1,1-Dichloroethylene ND 0.20 12/19/23 23:55 CMRND40.790.057 0.23
cis-1,2-Dichloroethylene ND 0.20 12/19/23 23:55 CMRND40.790.062 0.24
trans-1,2-Dichloroethylene ND 0.20 12/19/23 23:55 CMRND40.790.065 0.26
1,2-Dichloropropane ND 0.20 12/19/23 23:55 CMRND40.920.055 0.25
cis-1,3-Dichloropropene ND 0.20 12/19/23 23:55 CMRND40.910.090 0.41
trans-1,3-Dichloropropene ND 0.20 12/19/23 23:55 CMRND40.910.10 0.47
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)ND 0.20 12/19/23 23:55 CMRND41.40.080 0.56
1,4-Dioxane ND 2.0 12/19/23 23:55 CMRND47.20.98 3.5
Ethanol 170 8.0 12/19/23 23:55 CMR330 4155.3 10.0
Ethyl Acetate ND 2.0 12/19/23 23:55 CMRND47.20.58 2.1
Ethylbenzene 0.13 0.20 12/19/23 23:55 CMRJ0.56 40.870.058 0.25
4-Ethyltoluene ND 0.20 12/19/23 23:55 CMRND40.980.087 0.43
Heptane 0.20 0.20 12/19/23 23:55 CMRJ0.80 40.820.13 0.52
Hexachlorobutadiene ND 0.20 12/19/23 23:55 CMRND42.10.12 1.2
Hexane ND 8.0 12/19/23 23:55 CMRND4282.6 9.3
2-Hexanone (MBK)0.26 0.20 12/19/23 23:55 CMR1.1 40.820.087 0.35
Isopropanol 6.1 8.0 12/19/23 23:55 CMRJ15 4202.5 6.2
Methyl tert-Butyl Ether (MTBE)ND 0.20 12/19/23 23:55 CMRND40.720.098 0.35
Methylene Chloride ND 2.0 12/19/23 23:55 CMRND46.90.54 1.9
4-Methyl-2-pentanone (MIBK)0.40 0.20 12/19/23 23:55 CMR1.6 40.820.11 0.43
Naphthalene ND 0.20 12/19/23 23:55 CMRND41.00.13 0.70
Propene ND 8.0 12/19/23 23:55 CMRND4142.2 3.7
Styrene 0.22 0.20 12/19/23 23:55 CMR0.94 40.850.11 0.46
1,1,2,2-Tetrachloroethane ND 0.20 12/19/23 23:55 CMRND41.40.050 0.34
Page 14 of 38
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: Charlotte, NC
Date Received: 12/16/2023
Work Order: 23L2558Sample Description/Location:
Field Sample #: SSV-6
Sample ID: 23L2558-06
Sample Matrix: Sub Slab
Initial Vacuum(in Hg): -29.5
Final Vacuum(in Hg): -5
Receipt Vacuum(in Hg): -1.9
Sampled: 12/14/2023 13:41
Canister ID: 2109
Flow Controller ID: 4489
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 0.18 0.20 12/19/23 23:55 CMRJ1.2 41.40.075 0.51
Tetrahydrofuran ND 2.0 12/19/23 23:55 CMRND45.90.41 1.2
Toluene 1.1 0.20 12/19/23 23:55 CMR4.0 40.750.073 0.27
1,2,4-Trichlorobenzene ND 0.20 12/19/23 23:55 CMRND41.50.11 0.80
1,1,1-Trichloroethane ND 0.20 12/19/23 23:55 CMRND41.10.063 0.34
1,1,2-Trichloroethane ND 0.20 12/19/23 23:55 CMRND41.10.051 0.28
Trichloroethylene 0.20 0.20 12/19/23 23:55 CMRJ1.1 41.10.082 0.44
Trichlorofluoromethane (Freon 11)0.28 0.80 12/19/23 23:55 CMRJ1.6 44.50.082 0.46
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)0.092 0.80 12/19/23 23:55 CMRJ0.71 46.10.044 0.34
1,2,4-Trimethylbenzene 0.19 0.20 12/19/23 23:55 CMRJ0.92 40.980.092 0.45
1,3,5-Trimethylbenzene ND 0.20 12/19/23 23:55 CMRND40.980.10 0.51
Vinyl Acetate ND 4.0 12/19/23 23:55 CMRND4140.71 2.5
Vinyl Chloride ND 0.20 12/19/23 23:55 CMRND40.510.091 0.23
m&p-Xylene 0.46 0.40 12/19/23 23:55 CMR2.0 41.70.14 0.61
o-Xylene 0.24 0.20 12/19/23 23:55 CMR1.0 40.870.073 0.32
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1)94.3 12/19/23 23:5570-130
Page 15 of 38
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: Charlotte, NC
Date Received: 12/16/2023
Work Order: 23L2558Sample Description/Location:
Field Sample #: SSV-7
Sample ID: 23L2558-07
Sample Matrix: Sub Slab
Initial Vacuum(in Hg): -27
Final Vacuum(in Hg): -5
Receipt Vacuum(in Hg): -2.8
Sampled: 12/14/2023 13:15
Canister ID: 2899
Flow Controller ID: 4523
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 370 8.0 12/20/23 0:36 CMRE870 4191.9 4.5
Benzene 0.30 0.20 12/20/23 0:36 CMR0.97 40.640.062 0.20
Benzyl chloride ND 0.20 12/20/23 0:36 CMRND41.00.11 0.56
Bromodichloromethane ND 0.20 12/20/23 0:36 CMRND41.30.054 0.36
Bromoform ND 0.20 12/20/23 0:36 CMRND42.10.071 0.73
Bromomethane ND 0.20 12/20/23 0:36 CMRND40.780.11 0.41
1,3-Butadiene ND 0.20 12/20/23 0:36 CMRND40.440.17 0.37
2-Butanone (MEK)3.4 8.0 12/20/23 0:36 CMRJ10 4242.2 6.6
Carbon Disulfide 0.62 2.0 12/20/23 0:36 CMRJ1.9 46.20.38 1.2
Carbon Tetrachloride ND 0.20 12/20/23 0:36 CMRV-34 ND 41.30.058 0.36
Chlorobenzene ND 0.20 12/20/23 0:36 CMRND40.920.050 0.23
Chloroethane ND 0.20 12/20/23 0:36 CMRND40.530.13 0.33
Chloroform 0.20 0.20 12/20/23 0:36 CMRJ0.96 40.980.052 0.25
Chloromethane 0.17 0.40 12/20/23 0:36 CMRJ0.36 40.830.082 0.17
Cyclohexane 0.24 0.20 12/20/23 0:36 CMR0.84 40.690.088 0.30
Dibromochloromethane ND 0.20 12/20/23 0:36 CMRND41.70.054 0.46
1,2-Dibromoethane (EDB)ND 0.20 12/20/23 0:36 CMRND41.50.067 0.51
1,2-Dichlorobenzene ND 0.20 12/20/23 0:36 CMRND41.20.070 0.42
1,3-Dichlorobenzene ND 0.20 12/20/23 0:36 CMRND41.20.074 0.45
1,4-Dichlorobenzene ND 0.20 12/20/23 0:36 CMRND41.20.074 0.44
Dichlorodifluoromethane (Freon 12)0.29 0.20 12/20/23 0:36 CMR1.4 40.990.084 0.42
1,1-Dichloroethane ND 0.20 12/20/23 0:36 CMRND40.810.064 0.26
1,2-Dichloroethane ND 0.20 12/20/23 0:36 CMRND40.810.075 0.30
1,1-Dichloroethylene ND 0.20 12/20/23 0:36 CMRND40.790.057 0.23
cis-1,2-Dichloroethylene ND 0.20 12/20/23 0:36 CMRND40.790.062 0.24
trans-1,2-Dichloroethylene ND 0.20 12/20/23 0:36 CMRND40.790.065 0.26
1,2-Dichloropropane ND 0.20 12/20/23 0:36 CMRND40.920.055 0.25
cis-1,3-Dichloropropene ND 0.20 12/20/23 0:36 CMRND40.910.090 0.41
trans-1,3-Dichloropropene ND 0.20 12/20/23 0:36 CMRND40.910.10 0.47
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)ND 0.20 12/20/23 0:36 CMRND41.40.080 0.56
1,4-Dioxane 1.3 2.0 12/20/23 0:36 CMRJ4.6 47.20.98 3.5
Ethanol 230 8.0 12/20/23 0:36 CMRE430 4155.3 10.0
Ethyl Acetate 1.1 2.0 12/20/23 0:36 CMRJ4.1 47.20.58 2.1
Ethylbenzene 0.19 0.20 12/20/23 0:36 CMRJ0.83 40.870.058 0.25
4-Ethyltoluene ND 0.20 12/20/23 0:36 CMRND40.980.087 0.43
Heptane 0.42 0.20 12/20/23 0:36 CMR1.7 40.820.13 0.52
Hexachlorobutadiene ND 0.20 12/20/23 0:36 CMRND42.10.12 1.2
Hexane ND 8.0 12/20/23 0:36 CMRND4282.6 9.3
2-Hexanone (MBK)0.096 0.20 12/20/23 0:36 CMRJ0.39 40.820.087 0.35
Isopropanol 9.3 8.0 12/20/23 0:36 CMR23 4202.5 6.2
Methyl tert-Butyl Ether (MTBE)ND 0.20 12/20/23 0:36 CMRND40.720.098 0.35
Methylene Chloride ND 2.0 12/20/23 0:36 CMRND46.90.54 1.9
4-Methyl-2-pentanone (MIBK)0.45 0.20 12/20/23 0:36 CMR1.8 40.820.11 0.43
Naphthalene ND 0.20 12/20/23 0:36 CMRND41.00.13 0.70
Propene ND 8.0 12/20/23 0:36 CMRND4142.2 3.7
Styrene 0.22 0.20 12/20/23 0:36 CMR0.94 40.850.11 0.46
1,1,2,2-Tetrachloroethane ND 0.20 12/20/23 0:36 CMRND41.40.050 0.34
Page 16 of 38
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: Charlotte, NC
Date Received: 12/16/2023
Work Order: 23L2558Sample Description/Location:
Field Sample #: SSV-7
Sample ID: 23L2558-07
Sample Matrix: Sub Slab
Initial Vacuum(in Hg): -27
Final Vacuum(in Hg): -5
Receipt Vacuum(in Hg): -2.8
Sampled: 12/14/2023 13:15
Canister ID: 2899
Flow Controller ID: 4523
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 ND 0.20 12/20/23 0:36 CMRND41.40.075 0.51
Tetrahydrofuran ND 2.0 12/20/23 0:36 CMRND45.90.41 1.2
Toluene 1.4 0.20 12/20/23 0:36 CMR5.3 40.750.073 0.27
1,2,4-Trichlorobenzene ND 0.20 12/20/23 0:36 CMRND41.50.11 0.80
1,1,1-Trichloroethane ND 0.20 12/20/23 0:36 CMRND41.10.063 0.34
1,1,2-Trichloroethane ND 0.20 12/20/23 0:36 CMRND41.10.051 0.28
Trichloroethylene ND 0.20 12/20/23 0:36 CMRND41.10.082 0.44
Trichlorofluoromethane (Freon 11)0.22 0.80 12/20/23 0:36 CMRJ1.2 44.50.082 0.46
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)0.056 0.80 12/20/23 0:36 CMRJ0.43 46.10.044 0.34
1,2,4-Trimethylbenzene 0.18 0.20 12/20/23 0:36 CMRJ0.90 40.980.092 0.45
1,3,5-Trimethylbenzene ND 0.20 12/20/23 0:36 CMRND40.980.10 0.51
Vinyl Acetate ND 4.0 12/20/23 0:36 CMRND4140.71 2.5
Vinyl Chloride ND 0.20 12/20/23 0:36 CMRND40.510.091 0.23
m&p-Xylene 0.57 0.40 12/20/23 0:36 CMR2.5 41.70.14 0.61
o-Xylene 0.27 0.20 12/20/23 0:36 CMR1.2 40.870.073 0.32
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1)93.7 12/20/23 0:3670-130
Page 17 of 38
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: Charlotte, NC
Date Received: 12/16/2023
Work Order: 23L2558Sample Description/Location:
Field Sample #: SSV-8
Sample ID: 23L2558-08
Sample Matrix: Sub Slab
Initial Vacuum(in Hg): -27
Final Vacuum(in Hg): -5
Receipt Vacuum(in Hg): -3.4
Sampled: 12/14/2023 12:45
Canister ID: 2824
Flow Controller ID: 4073
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 230 8.0 12/20/23 1:16 CMRE550 4191.9 4.5
Benzene 0.26 0.20 12/20/23 1:16 CMR0.83 40.640.062 0.20
Benzyl chloride ND 0.20 12/20/23 1:16 CMRND41.00.11 0.56
Bromodichloromethane ND 0.20 12/20/23 1:16 CMRND41.30.054 0.36
Bromoform ND 0.20 12/20/23 1:16 CMRND42.10.071 0.73
Bromomethane ND 0.20 12/20/23 1:16 CMRND40.780.11 0.41
1,3-Butadiene ND 0.20 12/20/23 1:16 CMRND40.440.17 0.37
2-Butanone (MEK)4.3 8.0 12/20/23 1:16 CMRJ13 4242.2 6.6
Carbon Disulfide 1.4 2.0 12/20/23 1:16 CMRJ4.4 46.20.38 1.2
Carbon Tetrachloride ND 0.20 12/20/23 1:16 CMRV-34 ND 41.30.058 0.36
Chlorobenzene ND 0.20 12/20/23 1:16 CMRND40.920.050 0.23
Chloroethane ND 0.20 12/20/23 1:16 CMRND40.530.13 0.33
Chloroform ND 0.20 12/20/23 1:16 CMRND40.980.052 0.25
Chloromethane 0.30 0.40 12/20/23 1:16 CMRJ0.63 40.830.082 0.17
Cyclohexane 0.13 0.20 12/20/23 1:16 CMRJ0.44 40.690.088 0.30
Dibromochloromethane ND 0.20 12/20/23 1:16 CMRND41.70.054 0.46
1,2-Dibromoethane (EDB)ND 0.20 12/20/23 1:16 CMRND41.50.067 0.51
1,2-Dichlorobenzene ND 0.20 12/20/23 1:16 CMRND41.20.070 0.42
1,3-Dichlorobenzene ND 0.20 12/20/23 1:16 CMRND41.20.074 0.45
1,4-Dichlorobenzene ND 0.20 12/20/23 1:16 CMRND41.20.074 0.44
Dichlorodifluoromethane (Freon 12)0.29 0.20 12/20/23 1:16 CMR1.4 40.990.084 0.42
1,1-Dichloroethane ND 0.20 12/20/23 1:16 CMRND40.810.064 0.26
1,2-Dichloroethane ND 0.20 12/20/23 1:16 CMRND40.810.075 0.30
1,1-Dichloroethylene ND 0.20 12/20/23 1:16 CMRND40.790.057 0.23
cis-1,2-Dichloroethylene ND 0.20 12/20/23 1:16 CMRND40.790.062 0.24
trans-1,2-Dichloroethylene ND 0.20 12/20/23 1:16 CMRND40.790.065 0.26
1,2-Dichloropropane ND 0.20 12/20/23 1:16 CMRND40.920.055 0.25
cis-1,3-Dichloropropene ND 0.20 12/20/23 1:16 CMRND40.910.090 0.41
trans-1,3-Dichloropropene ND 0.20 12/20/23 1:16 CMRND40.910.10 0.47
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)ND 0.20 12/20/23 1:16 CMRND41.40.080 0.56
1,4-Dioxane ND 2.0 12/20/23 1:16 CMRND47.20.98 3.5
Ethanol 200 8.0 12/20/23 1:16 CMRE380 4155.3 10.0
Ethyl Acetate ND 2.0 12/20/23 1:16 CMRND47.20.58 2.1
Ethylbenzene 0.092 0.20 12/20/23 1:16 CMRJ0.40 40.870.058 0.25
4-Ethyltoluene ND 0.20 12/20/23 1:16 CMRND40.980.087 0.43
Heptane ND 0.20 12/20/23 1:16 CMRND40.820.13 0.52
Hexachlorobutadiene ND 0.20 12/20/23 1:16 CMRND42.10.12 1.2
Hexane ND 8.0 12/20/23 1:16 CMRND4282.6 9.3
2-Hexanone (MBK)ND 0.20 12/20/23 1:16 CMRND40.820.087 0.35
Isopropanol 6.5 8.0 12/20/23 1:16 CMRJ16 4202.5 6.2
Methyl tert-Butyl Ether (MTBE)ND 0.20 12/20/23 1:16 CMRND40.720.098 0.35
Methylene Chloride ND 2.0 12/20/23 1:16 CMRND46.90.54 1.9
4-Methyl-2-pentanone (MIBK)0.34 0.20 12/20/23 1:16 CMR1.4 40.820.11 0.43
Naphthalene ND 0.20 12/20/23 1:16 CMRND41.00.13 0.70
Propene ND 8.0 12/20/23 1:16 CMRND4142.2 3.7
Styrene 0.29 0.20 12/20/23 1:16 CMR1.2 40.850.11 0.46
1,1,2,2-Tetrachloroethane ND 0.20 12/20/23 1:16 CMRND41.40.050 0.34
Page 18 of 38
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: Charlotte, NC
Date Received: 12/16/2023
Work Order: 23L2558Sample Description/Location:
Field Sample #: SSV-8
Sample ID: 23L2558-08
Sample Matrix: Sub Slab
Initial Vacuum(in Hg): -27
Final Vacuum(in Hg): -5
Receipt Vacuum(in Hg): -3.4
Sampled: 12/14/2023 12:45
Canister ID: 2824
Flow Controller ID: 4073
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 0.27 0.20 12/20/23 1:16 CMR1.8 41.40.075 0.51
Tetrahydrofuran ND 2.0 12/20/23 1:16 CMRND45.90.41 1.2
Toluene 0.51 0.20 12/20/23 1:16 CMR1.9 40.750.073 0.27
1,2,4-Trichlorobenzene ND 0.20 12/20/23 1:16 CMRND41.50.11 0.80
1,1,1-Trichloroethane ND 0.20 12/20/23 1:16 CMRND41.10.063 0.34
1,1,2-Trichloroethane ND 0.20 12/20/23 1:16 CMRND41.10.051 0.28
Trichloroethylene ND 0.20 12/20/23 1:16 CMRND41.10.082 0.44
Trichlorofluoromethane (Freon 11)0.21 0.80 12/20/23 1:16 CMRJ1.2 44.50.082 0.46
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)0.048 0.80 12/20/23 1:16 CMRJ0.37 46.10.044 0.34
1,2,4-Trimethylbenzene 0.13 0.20 12/20/23 1:16 CMRJ0.63 40.980.092 0.45
1,3,5-Trimethylbenzene ND 0.20 12/20/23 1:16 CMRND40.980.10 0.51
Vinyl Acetate ND 4.0 12/20/23 1:16 CMRND4140.71 2.5
Vinyl Chloride ND 0.20 12/20/23 1:16 CMRND40.510.091 0.23
m&p-Xylene 0.26 0.40 12/20/23 1:16 CMRJ1.1 41.70.14 0.61
o-Xylene 0.14 0.20 12/20/23 1:16 CMRJ0.61 40.870.073 0.32
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1)97.2 12/20/23 1:1670-130
Page 19 of 38
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: Charlotte, NC
Date Received: 12/16/2023
Work Order: 23L2558Sample Description/Location:
Field Sample #: SSV-DUP
Sample ID: 23L2558-09
Sample Matrix: Sub Slab
Initial Vacuum(in Hg): -27
Final Vacuum(in Hg): -5
Receipt Vacuum(in Hg): -3.4
Sampled: 12/14/2023 00:00
Canister ID: 2766
Flow Controller ID: 4073
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 230 8.0 12/20/23 1:56 CMRE540 4191.9 4.5
Benzene 0.28 0.20 12/20/23 1:56 CMR0.88 40.640.062 0.20
Benzyl chloride ND 0.20 12/20/23 1:56 CMRND41.00.11 0.56
Bromodichloromethane ND 0.20 12/20/23 1:56 CMRND41.30.054 0.36
Bromoform ND 0.20 12/20/23 1:56 CMRND42.10.071 0.73
Bromomethane ND 0.20 12/20/23 1:56 CMRND40.780.11 0.41
1,3-Butadiene ND 0.20 12/20/23 1:56 CMRND40.440.17 0.37
2-Butanone (MEK)4.1 8.0 12/20/23 1:56 CMRJ12 4242.2 6.6
Carbon Disulfide 1.4 2.0 12/20/23 1:56 CMRJ4.2 46.20.38 1.2
Carbon Tetrachloride ND 0.20 12/20/23 1:56 CMRV-34 ND 41.30.058 0.36
Chlorobenzene ND 0.20 12/20/23 1:56 CMRND40.920.050 0.23
Chloroethane ND 0.20 12/20/23 1:56 CMRND40.530.13 0.33
Chloroform ND 0.20 12/20/23 1:56 CMRND40.980.052 0.25
Chloromethane 0.28 0.40 12/20/23 1:56 CMRJ0.58 40.830.082 0.17
Cyclohexane 0.13 0.20 12/20/23 1:56 CMRJ0.45 40.690.088 0.30
Dibromochloromethane ND 0.20 12/20/23 1:56 CMRND41.70.054 0.46
1,2-Dibromoethane (EDB)ND 0.20 12/20/23 1:56 CMRND41.50.067 0.51
1,2-Dichlorobenzene ND 0.20 12/20/23 1:56 CMRND41.20.070 0.42
1,3-Dichlorobenzene ND 0.20 12/20/23 1:56 CMRND41.20.074 0.45
1,4-Dichlorobenzene ND 0.20 12/20/23 1:56 CMRND41.20.074 0.44
Dichlorodifluoromethane (Freon 12)0.26 0.20 12/20/23 1:56 CMR1.3 40.990.084 0.42
1,1-Dichloroethane ND 0.20 12/20/23 1:56 CMRND40.810.064 0.26
1,2-Dichloroethane ND 0.20 12/20/23 1:56 CMRND40.810.075 0.30
1,1-Dichloroethylene ND 0.20 12/20/23 1:56 CMRND40.790.057 0.23
cis-1,2-Dichloroethylene ND 0.20 12/20/23 1:56 CMRND40.790.062 0.24
trans-1,2-Dichloroethylene ND 0.20 12/20/23 1:56 CMRND40.790.065 0.26
1,2-Dichloropropane ND 0.20 12/20/23 1:56 CMRND40.920.055 0.25
cis-1,3-Dichloropropene ND 0.20 12/20/23 1:56 CMRND40.910.090 0.41
trans-1,3-Dichloropropene ND 0.20 12/20/23 1:56 CMRND40.910.10 0.47
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)ND 0.20 12/20/23 1:56 CMRND41.40.080 0.56
1,4-Dioxane ND 2.0 12/20/23 1:56 CMRND47.20.98 3.5
Ethanol 200 8.0 12/20/23 1:56 CMR370 4155.3 10.0
Ethyl Acetate ND 2.0 12/20/23 1:56 CMRND47.20.58 2.1
Ethylbenzene 0.11 0.20 12/20/23 1:56 CMRJ0.47 40.870.058 0.25
4-Ethyltoluene ND 0.20 12/20/23 1:56 CMRND40.980.087 0.43
Heptane 0.14 0.20 12/20/23 1:56 CMRJ0.57 40.820.13 0.52
Hexachlorobutadiene ND 0.20 12/20/23 1:56 CMRND42.10.12 1.2
Hexane ND 8.0 12/20/23 1:56 CMRND4282.6 9.3
2-Hexanone (MBK)ND 0.20 12/20/23 1:56 CMRND40.820.087 0.35
Isopropanol 6.3 8.0 12/20/23 1:56 CMRJ16 4202.5 6.2
Methyl tert-Butyl Ether (MTBE)ND 0.20 12/20/23 1:56 CMRND40.720.098 0.35
Methylene Chloride ND 2.0 12/20/23 1:56 CMRND46.90.54 1.9
4-Methyl-2-pentanone (MIBK)0.34 0.20 12/20/23 1:56 CMR1.4 40.820.11 0.43
Naphthalene ND 0.20 12/20/23 1:56 CMRND41.00.13 0.70
Propene ND 8.0 12/20/23 1:56 CMRND4142.2 3.7
Styrene 0.27 0.20 12/20/23 1:56 CMR1.2 40.850.11 0.46
1,1,2,2-Tetrachloroethane ND 0.20 12/20/23 1:56 CMRND41.40.050 0.34
Page 20 of 38
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: Charlotte, NC
Date Received: 12/16/2023
Work Order: 23L2558Sample Description/Location:
Field Sample #: SSV-DUP
Sample ID: 23L2558-09
Sample Matrix: Sub Slab
Initial Vacuum(in Hg): -27
Final Vacuum(in Hg): -5
Receipt Vacuum(in Hg): -3.4
Sampled: 12/14/2023 00:00
Canister ID: 2766
Flow Controller ID: 4073
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 0.24 0.20 12/20/23 1:56 CMR1.7 41.40.075 0.51
Tetrahydrofuran ND 2.0 12/20/23 1:56 CMRND45.90.41 1.2
Toluene 0.54 0.20 12/20/23 1:56 CMR2.0 40.750.073 0.27
1,2,4-Trichlorobenzene ND 0.20 12/20/23 1:56 CMRND41.50.11 0.80
1,1,1-Trichloroethane ND 0.20 12/20/23 1:56 CMRND41.10.063 0.34
1,1,2-Trichloroethane ND 0.20 12/20/23 1:56 CMRND41.10.051 0.28
Trichloroethylene ND 0.20 12/20/23 1:56 CMRND41.10.082 0.44
Trichlorofluoromethane (Freon 11)0.20 0.80 12/20/23 1:56 CMRJ1.1 44.50.082 0.46
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)0.052 0.80 12/20/23 1:56 CMRJ0.40 46.10.044 0.34
1,2,4-Trimethylbenzene 0.13 0.20 12/20/23 1:56 CMRJ0.63 40.980.092 0.45
1,3,5-Trimethylbenzene ND 0.20 12/20/23 1:56 CMRND40.980.10 0.51
Vinyl Acetate ND 4.0 12/20/23 1:56 CMRND4140.71 2.5
Vinyl Chloride ND 0.20 12/20/23 1:56 CMRND40.510.091 0.23
m&p-Xylene 0.29 0.40 12/20/23 1:56 CMRJ1.3 41.70.14 0.61
o-Xylene 0.14 0.20 12/20/23 1:56 CMRJ0.63 40.870.073 0.32
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1)95.7 12/20/23 1:5670-130
Page 21 of 38
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
23L2558-01 [SSV-1]B361620 1.5 1 N/A 1000 400 150 12/19/23
23L2558-02 [SSV-2]B361620 1.5 1 N/A 1000 400 150 12/19/23
23L2558-03 [SSV-3]B361620 1.5 1 N/A 1000 400 150 12/19/23
23L2558-04 [SSV-4]B361620 1.5 1 N/A 1000 400 150 12/19/23
23L2558-05 [SSV-5]B361620 1.5 1 N/A 1000 400 150 12/19/23
23L2558-06 [SSV-6]B361620 1.5 1 N/A 1000 400 150 12/19/23
23L2558-07 [SSV-7]B361620 1.5 1 N/A 1000 400 150 12/19/23
23L2558-08 [SSV-8]B361620 1.5 1 N/A 1000 400 150 12/19/23
23L2558-09 [SSV-DUP]B361620 1.5 1 N/A 1000 400 150 12/19/23
Page 22 of 38
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 B361620 - TO-15 Prep
Blank (B361620-BLK1)Prepared & Analyzed: 12/19/23
1.4NDAcetone
0.035NDBenzene
0.035NDBenzyl chloride
0.035NDBromodichloromethane
0.035NDBromoform
0.035NDBromomethane
0.035ND1,3-Butadiene
1.4ND2-Butanone (MEK)
0.35NDCarbon Disulfide
0.035 V-34NDCarbon Tetrachloride
0.035NDChlorobenzene
0.035NDChloroethane
0.035NDChloroform
0.070NDChloromethane
0.035NDCyclohexane
0.035NDDibromochloromethane
0.035ND1,2-Dibromoethane (EDB)
0.035ND1,2-Dichlorobenzene
0.035ND1,3-Dichlorobenzene
0.035ND1,4-Dichlorobenzene
0.035NDDichlorodifluoromethane (Freon 12)
0.035ND1,1-Dichloroethane
0.035ND1,2-Dichloroethane
0.035ND1,1-Dichloroethylene
0.035NDcis-1,2-Dichloroethylene
0.035NDtrans-1,2-Dichloroethylene
0.035ND1,2-Dichloropropane
0.035NDcis-1,3-Dichloropropene
0.035NDtrans-1,3-Dichloropropene
0.035ND1,2-Dichloro-1,1,2,2-tetrafluoroethane
(Freon 114)
0.35ND1,4-Dioxane
1.4NDEthanol
0.35NDEthyl Acetate
0.035NDEthylbenzene
0.035ND4-Ethyltoluene
0.035NDHeptane
0.035NDHexachlorobutadiene
1.4NDHexane
0.035ND2-Hexanone (MBK)
1.4NDIsopropanol
0.035NDMethyl tert-Butyl Ether (MTBE)
0.35NDMethylene Chloride
0.035ND4-Methyl-2-pentanone (MIBK)
0.035NDNaphthalene
1.4NDPropene
0.035NDStyrene
Page 23 of 38
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 B361620 - TO-15 Prep
Blank (B361620-BLK1)Prepared & Analyzed: 12/19/23
0.035ND1,1,2,2-Tetrachloroethane
0.035NDTetrachloroethylene
0.35NDTetrahydrofuran
0.035NDToluene
0.035ND1,2,4-Trichlorobenzene
0.035ND1,1,1-Trichloroethane
0.035ND1,1,2-Trichloroethane
0.035NDTrichloroethylene
0.14NDTrichlorofluoromethane (Freon 11)
0.14ND1,1,2-Trichloro-1,2,2-trifluoroethane (Freon
113)
0.035ND1,2,4-Trimethylbenzene
0.035ND1,3,5-Trimethylbenzene
0.70NDVinyl Acetate
0.035NDVinyl Chloride
0.070NDm&p-Xylene
0.035NDo-Xylene
8.00 70-130Surrogate: 4-Bromofluorobenzene (1)90.87.27
LCS (B361620-BS1)Prepared & Analyzed: 12/19/23
5.00 70-1301075.33Acetone
5.00 70-13097.54.88Benzene
5.00 70-13098.74.94Benzyl chloride
5.00 70-13093.14.66Bromodichloromethane
5.00 70-1301105.48Bromoform
5.00 70-1301085.38Bromomethane
5.00 70-1301015.031,3-Butadiene
5.00 70-1301025.122-Butanone (MEK)
5.00 70-13091.74.59Carbon Disulfide
5.00 V-3470-13093.34.67Carbon Tetrachloride
5.00 70-13095.04.75Chlorobenzene
5.00 70-1301085.38Chloroethane
5.00 70-13088.84.44Chloroform
5.00 70-13089.04.45Chloromethane
5.00 70-1301055.25Cyclohexane
5.00 70-1301065.29Dibromochloromethane
5.00 70-13097.04.851,2-Dibromoethane (EDB)
5.00 70-13097.24.861,2-Dichlorobenzene
5.00 70-1301005.011,3-Dichlorobenzene
5.00 70-13098.64.931,4-Dichlorobenzene
5.00 70-13085.84.29Dichlorodifluoromethane (Freon 12)
5.00 70-13087.04.351,1-Dichloroethane
5.00 70-13091.24.561,2-Dichloroethane
5.00 70-13090.84.541,1-Dichloroethylene
5.00 70-13090.04.50cis-1,2-Dichloroethylene
5.00 70-13091.84.59trans-1,2-Dichloroethylene
5.00 70-13092.14.601,2-Dichloropropane
Page 24 of 38
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 B361620 - TO-15 Prep
LCS (B361620-BS1)Prepared & Analyzed: 12/19/23
5.00 70-13095.04.75cis-1,3-Dichloropropene
5.00 70-1301005.02trans-1,3-Dichloropropene
5.00 70-13096.54.821,2-Dichloro-1,1,2,2-tetrafluoroethane
(Freon 114)
5.00 70-1301085.421,4-Dioxane
5.00 70-13099.24.96Ethanol
5.00 70-13081.04.05Ethyl Acetate
5.00 70-1301055.27Ethylbenzene
5.00 70-1301145.684-Ethyltoluene
5.00 70-1301075.37Heptane
4.25 70-13082.43.50Hexachlorobutadiene
5.00 70-1301115.54Hexane
5.00 70-1301125.612-Hexanone (MBK)
5.00 70-13097.94.90Isopropanol
5.00 70-13089.84.49Methyl tert-Butyl Ether (MTBE)
5.00 70-13086.04.30Methylene Chloride
5.00 70-1301175.844-Methyl-2-pentanone (MIBK)
3.68 70-1301264.62Naphthalene
5.00 70-13076.53.83Propene
5.00 70-1301065.32Styrene
5.00 70-13096.44.821,1,2,2-Tetrachloroethane
5.00 70-13089.04.45Tetrachloroethylene
5.00 70-13098.14.91Tetrahydrofuran
5.00 70-1301045.21Toluene
3.90 70-13095.13.711,2,4-Trichlorobenzene
5.00 70-13087.84.391,1,1-Trichloroethane
5.00 70-13096.14.811,1,2-Trichloroethane
5.00 70-13093.94.69Trichloroethylene
5.00 70-1301105.51Trichlorofluoromethane (Freon 11)
5.00 70-13085.14.261,1,2-Trichloro-1,2,2-trifluoroethane (Freon
113)
5.00 70-1301075.341,2,4-Trimethylbenzene
5.00 70-1301075.351,3,5-Trimethylbenzene
5.00 70-1301206.00Vinyl Acetate
5.00 70-13093.84.69Vinyl Chloride
10.0 70-13010810.8m&p-Xylene
5.00 70-1301085.38o-Xylene
8.00 70-130Surrogate: 4-Bromofluorobenzene (1)1018.06
Page 25 of 38
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 B361620 - TO-15 Prep
Duplicate (B361620-DUP1)Prepared & Analyzed: 12/19/23 Source: 23L2558-01
8.0 570 25 E7.49620Acetone191500
0.20 0.29 259.270.32Benzene 0.641.0
0.20 ND 25NDBenzyl chloride 1.0ND
0.20 ND 25NDBromodichloromethane1.3ND
0.20 ND 25NDBromoform2.1ND
0.20 ND 25NDBromomethane0.78ND
0.20 ND 25ND1,3-Butadiene 0.44ND
8.0 16 2514.5182-Butanone (MEK)2454
2.0 2.4 2515.22.7Carbon Disulfide 6.28.5
0.20 ND 25 V-34NDCarbon Tetrachloride 1.3ND
0.20 ND 25NDChlorobenzene0.92ND
0.20 ND 25NDChloroethane0.53ND
0.20 0.22 2516.40.26Chloroform 0.981.3
0.40 0.16 25 J0.000.16Chloromethane 0.830.32
0.20 0.24 2512.70.27Cyclohexane 0.690.92
0.20 ND 25NDDibromochloromethane1.7ND
0.20 ND 25ND1,2-Dibromoethane (EDB)1.5ND
0.20 ND 25ND1,2-Dichlorobenzene 1.2ND
0.20 ND 25ND1,3-Dichlorobenzene 1.2ND
0.20 ND 25ND1,4-Dichlorobenzene 1.2ND
0.20 0.25 2512.10.28Dichlorodifluoromethane (Freon 12)0.991.4
0.20 ND 25ND1,1-Dichloroethane 0.81ND
0.20 ND 25ND1,2-Dichloroethane 0.81ND
0.20 ND 25ND1,1-Dichloroethylene 0.79ND
0.20 ND 25NDcis-1,2-Dichloroethylene 0.79ND
0.20 ND 25NDtrans-1,2-Dichloroethylene 0.79ND
0.20 ND 25ND1,2-Dichloropropane 0.92ND
0.20 ND 25NDcis-1,3-Dichloropropene 0.91ND
0.20 ND 25NDtrans-1,3-Dichloropropene 0.91ND
0.20 ND 25ND1,2-Dichloro-1,1,2,2-tetrafluoroethane
(Freon 114)
1.4ND
2.0 1.3 25 J12.61.51,4-Dioxane 7.25.2
8.0 320 25 E13.5370Ethanol15700
2.0 ND 25NDEthyl Acetate 7.2ND
0.20 0.26 2517.90.32Ethylbenzene 0.871.4
0.20 ND 25ND4-Ethyltoluene 0.98ND
0.20 0.23 256.780.24Heptane 0.821.00
0.20 ND 25NDHexachlorobutadiene2.1ND
8.0 ND 25NDHexane28ND
0.20 ND 252.22-Hexanone (MBK)0.828.9
8.0 12 2513.314Isopropanol2034
0.20 ND 25NDMethyl tert-Butyl Ether (MTBE)0.72ND
2.0 ND 25NDMethylene Chloride 6.9ND
0.20 0.73 258.880.804-Methyl-2-pentanone (MIBK)0.823.3
0.20 ND 25NDNaphthalene1.0ND
8.0 ND 25NDPropene14ND
0.20 0.91 2516.91.1Styrene 0.854.6
Page 26 of 38
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 B361620 - TO-15 Prep
Duplicate (B361620-DUP1)Prepared & Analyzed: 12/19/23 Source: 23L2558-01
0.20 ND 25ND1,1,2,2-Tetrachloroethane 1.4ND
0.20 ND 25NDTetrachloroethylene1.4ND
2.0 2.5 2520.03.0Tetrahydrofuran 5.98.9
0.20 0.76 2520.00.92Toluene 0.753.5
0.20 ND 25ND1,2,4-Trichlorobenzene 1.5ND
0.20 ND 25ND1,1,1-Trichloroethane 1.1ND
0.20 ND 25ND1,1,2-Trichloroethane 1.1ND
0.20 ND 25NDTrichloroethylene1.1ND
0.80 0.22 25 J13.30.26Trichlorofluoromethane (Freon 11)4.51.4
0.80 0.072 25 J10.50.0801,1,2-Trichloro-1,2,2-trifluoroethane (Freon
113)
6.10.61
0.20 0.16 25 J22.70.201,2,4-Trimethylbenzene 0.980.96
0.20 ND 25ND1,3,5-Trimethylbenzene 0.98ND
4.0 ND 25NDVinyl Acetate 14ND
0.20 ND 25NDVinyl Chloride 0.51ND
0.40 0.40 2518.20.48m&p-Xylene 1.72.1
0.20 0.51 2517.30.60o-Xylene 0.872.6
8.00 70-130Surrogate: 4-Bromofluorobenzene (1)95.37.62
Page 27 of 38
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
Microgramµg
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
Reported result is estimated. Value reported over verified calibration range.E
Detected but below the Reporting Limit (lowest calibration standard); therefore, result is an estimated
concentration (CLP J-Flag).
J
Initial calibration verification (ICV) did not meet method specifications and was biased on the low side for this
compound. Reported result is estimated.
V-34
Page 28 of 38
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYST
Thomas P. HniteckiTPH
Report Queue StationSTATION
Rebecca FaustRLF
Kristen M CoutureKMC
Catherine M. RouleauCMR
Alyssa A MulinareAAM
Page 29 of 38
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 (S095502-ICV1 )Lab File ID: G23A292017.D Analyzed: 10/20/23 16:14
Bromochloromethane (1)1107131 8.036 1080445 8.03 60 - 140102 0.0060 +/-0.50
1,4-Difluorobenzene (1)2388965 9.804 2308848 9.804 60 - 140103 0.0000 +/-0.50
Chlorobenzene-d5 (1)2148001 14.157 2077591 14.157 60 - 140103 0.0000 +/-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 (S098241-CCV1 )Lab File ID: G23A353002.D Analyzed: 12/19/23 11:48
Bromochloromethane (1)706662 8.03 1080445 8.03 60 - 14065 0.0000 +/-0.50
1,4-Difluorobenzene (1)1386410 9.798 2308848 9.804 60 - 14060 -0.0060 +/-0.50
Chlorobenzene-d5 (1)1297658 14.157 2077591 14.157 60 - 14062 0.0000 +/-0.50
LCS (B361620-BS1 )Lab File ID: G23A353004.D Analyzed: 12/19/23 13:28
Bromochloromethane (1)712827 8.03 706662 8.03 60 - 140101 0.0000 +/-0.50
1,4-Difluorobenzene (1)1452315 9.804 1386410 9.798 60 - 140105 0.0060 +/-0.50
Chlorobenzene-d5 (1)1325399 14.157 1297658 14.157 60 - 140102 0.0000 +/-0.50
Blank (B361620-BLK1 )Lab File ID: G23A353009.D Analyzed: 12/19/23 16:55
Bromochloromethane (1)645994 8.036 706662 8.03 60 - 14091 0.0060 +/-0.50
1,4-Difluorobenzene (1)1288839 9.804 1386410 9.798 60 - 14093 0.0060 +/-0.50
Chlorobenzene-d5 (1)1202109 14.157 1297658 14.157 60 - 14093 0.0000 +/-0.50
SSV-1 (23L2558-01 )Lab File ID: G23A353013.D Analyzed: 12/19/23 19:51
Bromochloromethane (1)695057 8.03 706662 8.03 60 - 14098 0.0000 +/-0.50
1,4-Difluorobenzene (1)1364392 9.798 1386410 9.798 60 - 14098 0.0000 +/-0.50
Chlorobenzene-d5 (1)1227769 14.157 1297658 14.157 60 - 14095 0.0000 +/-0.50
Duplicate (B361620-DUP1 )Lab File ID: G23A353014.D Analyzed: 12/19/23 20:33
Bromochloromethane (1)708913 8.03 706662 8.03 60 - 140100 0.0000 +/-0.50
1,4-Difluorobenzene (1)1408656 9.798 1386410 9.798 60 - 140102 0.0000 +/-0.50
Chlorobenzene-d5 (1)1206978 14.157 1297658 14.157 60 - 14093 0.0000 +/-0.50
SSV-2 (23L2558-02 )Lab File ID: G23A353015.D Analyzed: 12/19/23 21:14
Bromochloromethane (1)711583 8.03 706662 8.03 60 - 140101 0.0000 +/-0.50
1,4-Difluorobenzene (1)1408038 9.798 1386410 9.798 60 - 140102 0.0000 +/-0.50
Chlorobenzene-d5 (1)1264303 14.157 1297658 14.157 60 - 14097 0.0000 +/-0.50
SSV-3 (23L2558-03 )Lab File ID: G23A353016.D Analyzed: 12/19/23 21:54
Bromochloromethane (1)714802 8.03 706662 8.03 60 - 140101 0.0000 +/-0.50
1,4-Difluorobenzene (1)1432833 9.804 1386410 9.798 60 - 140103 0.0060 +/-0.50
Chlorobenzene-d5 (1)1327660 14.157 1297658 14.157 60 - 140102 0.0000 +/-0.50
Page 30 of 38
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
SSV-4 (23L2558-04 )Lab File ID: G23A353017.D Analyzed: 12/19/23 22:35
Bromochloromethane (1)962083 8.024 706662 8.03 60 - 140136 -0.0060 +/-0.50
1,4-Difluorobenzene (1)1287611 9.786 1386410 9.798 60 - 14093 -0.0120 +/-0.50
Chlorobenzene-d5 (1)1254307 14.151 1297658 14.157 60 - 14097 -0.0060 +/-0.50
SSV-5 (23L2558-05 )Lab File ID: G23A353018.D Analyzed: 12/19/23 23:15
Bromochloromethane (1)712643 8.03 706662 8.03 60 - 140101 0.0000 +/-0.50
1,4-Difluorobenzene (1)1431660 9.798 1386410 9.798 60 - 140103 0.0000 +/-0.50
Chlorobenzene-d5 (1)1304600 14.157 1297658 14.157 60 - 140101 0.0000 +/-0.50
SSV-6 (23L2558-06 )Lab File ID: G23A353019.D Analyzed: 12/19/23 23:55
Bromochloromethane (1)720436 8.03 706662 8.03 60 - 140102 0.0000 +/-0.50
1,4-Difluorobenzene (1)1445903 9.798 1386410 9.798 60 - 140104 0.0000 +/-0.50
Chlorobenzene-d5 (1)1322134 14.157 1297658 14.157 60 - 140102 0.0000 +/-0.50
SSV-7 (23L2558-07 )Lab File ID: G23A353020.D Analyzed: 12/20/23 00:36
Bromochloromethane (1)699526 8.03 706662 8.03 60 - 14099 0.0000 +/-0.50
1,4-Difluorobenzene (1)1380660 9.798 1386410 9.798 60 - 140100 0.0000 +/-0.50
Chlorobenzene-d5 (1)1241755 14.157 1297658 14.157 60 - 14096 0.0000 +/-0.50
SSV-8 (23L2558-08 )Lab File ID: G23A353021.D Analyzed: 12/20/23 01:16
Bromochloromethane (1)704056 8.03 706662 8.03 60 - 140100 0.0000 +/-0.50
1,4-Difluorobenzene (1)1411027 9.804 1386410 9.798 60 - 140102 0.0060 +/-0.50
Chlorobenzene-d5 (1)1288175 14.157 1297658 14.157 60 - 14099 0.0000 +/-0.50
SSV-DUP (23L2558-09 )Lab File ID: G23A353022.D Analyzed: 12/20/23 01:56
Bromochloromethane (1)692395 8.03 706662 8.03 60 - 14098 0.0000 +/-0.50
1,4-Difluorobenzene (1)1383911 9.798 1386410 9.798 60 - 140100 0.0000 +/-0.50
Chlorobenzene-d5 (1)1267811 14.157 1297658 14.157 60 - 14098 0.0000 +/-0.50
Page 31 of 38
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
CONTINUING CALIBRATION CHECK
EPA TO-15
S098241-CCV1
COMPOUND TYPE CCV MIN (#)CCV LIMIT (#)CCV ICAL
CONC. (ppbv)% DIFF / DRIFTRESPONSE FACTOR
STD
1.378311A 9.9 305.50 1.2538375.00Acetone
0.9016034A 3.8 305.19 0.86846265.00Benzene
1.010383A 21.9 306.09 0.82911255.00Benzyl chloride
0.6470502A 0.07 305.00 0.64660795.00Bromodichloromethane
0.5673335A 15.4 305.77 0.491815.00Bromoform
0.703628A 7.9 305.40 0.65206475.00Bromomethane
0.6571742A 6.3 305.31 0.61834585.001,3-Butadiene
1.431139A 4.6 305.23 1.3684915.002-Butanone (MEK)
1.637732A -12.0 304.40 1.8607085.00Carbon Disulfide
0.4923658A -2.1 304.90 0.50286635.00Carbon Tetrachloride
0.8202482A 3.3 305.17 0.79380955.00Chlorobenzene
0.4242345A 9.7 305.48 0.38672425.00Chloroethane
1.18911A -10.8 304.46 1.3331545.00Chloroform
0.7911358A -1.8 304.91 0.80600895.00Chloromethane
0.3417275A 4.7 305.24 0.32636625.00Cyclohexane
0.6149294A 8.1 305.40 0.56906025.00Dibromochloromethane
0.5793514A 5.2 305.26 0.55084195.001,2-Dibromoethane (EDB)
0.7141493A 16.7 305.84 0.6117715.001,2-Dichlorobenzene
0.7743513A 16.3 305.82 0.66556015.001,3-Dichlorobenzene
0.7543288A 15.2 305.76 0.65487255.001,4-Dichlorobenzene
1.267747A -14.0 304.30 1.4736495.00Dichlorodifluoromethane (Freon 12)
1.135398A -11.7 304.42 1.2854575.001,1-Dichloroethane
0.8114069A -5.5 304.73 0.85834685.001,2-Dichloroethane
1.059188A -8.5 304.57 1.1581915.001,1-Dichloroethylene
0.8304145A -7.2 304.64 0.89512285.00cis-1,2-Dichloroethylene
0.856534A -9.8 304.51 0.94910985.00trans-1,2-Dichloroethylene
0.3713037A -3.4 304.83 0.38423945.001,2-Dichloropropane
0.5581229A 14.4 305.72 0.48772785.00cis-1,3-Dichloropropene
0.4219739A 0.8 305.04 0.4184645.00trans-1,3-Dichloropropene
1.904764A 7.6 305.38 1.770165.001,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
0.1538766A 10.3 305.51 0.13955065.001,4-Dioxane
0.2339087A 4.0 305.20 0.22484595.00Ethanol
0.1956556A -20.0 304.00 0.24444235.00Ethyl Acetate
1.453142A 14.2 305.71 1.2724725.00Ethylbenzene
1.468959A 21.9 306.09 1.2051755.004-Ethyltoluene
0.3153745A 13.7 305.69 0.27732775.00Heptane
0.3968503A -7.8 304.61 0.43059315.00Hexachlorobutadiene
0.8517928A 8.1 305.40 0.7882155.00Hexane
Page 32 of 38
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
CONTINUING CALIBRATION CHECK
EPA TO-15
S098241-CCV1
COMPOUND TYPE CCV MIN (#)CCV LIMIT (#)CCV ICAL
CONC. (ppbv)% DIFF / DRIFTRESPONSE FACTOR
STD
0.8813576A 26.3 306.31 0.69810375.002-Hexanone (MBK)
1.574736A 10.9 305.54 1.420455.00Isopropanol
1.44445A -12.8 304.36 1.6572415.00Methyl tert-Butyl Ether (MTBE)
0.8415565A -10.5 304.48 0.94008375.00Methylene Chloride
0.9140615A 25.8 306.29 0.72652345.004-Methyl-2-pentanone (MIBK)
0.967662A 28.7 306.44 0.75168145.00Naphthalene
0.5951111A -21.3 303.93 0.75654245.00Propene
0.8208696A 18.9 305.94 0.69066715.00Styrene
0.9640839A 9.9 305.50 0.87720825.001,1,2,2-Tetrachloroethane
0.4234052A -6.4 304.68 0.45215555.00Tetrachloroethylene
0.2282936A -9.6 304.52 0.25261715.00Tetrahydrofuran
1.099105A 8.8 305.44 1.0105265.00Toluene
0.4207371A 4.4 305.22 0.40296425.001,2,4-Trichlorobenzene
0.5334503A -2.1 304.90 0.54480665.001,1,1-Trichloroethane
0.3759684A 1.7 305.09 0.36956075.001,1,2-Trichloroethane
0.3671099A 1.2 305.06 0.36278165.00Trichloroethylene
1.838976A 11.2 305.56 1.6541395.00Trichlorofluoromethane (Freon 11)
1.10573A -13.4 304.33 1.2766295.001,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
1.198485A 24.3 306.22 0.96385465.001,2,4-Trimethylbenzene
1.218978A 20.7 306.03 1.0101165.001,3,5-Trimethylbenzene
1.854637A 28.6 306.43 1.4417885.00Vinyl Acetate
0.8332085A -1.0 304.95 0.84195475.00Vinyl Chloride
1.142181A 16.6 3011.7 0.979630910.0m&p-Xylene
1.181264A 19.8 305.99 0.98631065.00o-Xylene
* Values outside of QC limits
# Column to be used to flag Response Factor and %Diff/Drift values with an asterisk
Page 33 of 38
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
CertificationsAnalyte
CERTIFICATIONS
Certified Analyses included in this Report
EPA TO-15 in Air
NY,ME,NHAcetone
FL,NJ,NY,ME,NH,VABenzene
FL,NJ,NY,ME,NH,VABenzyl chloride
NJ,NY,ME,NH,VABromodichloromethane
NJ,NY,ME,NH,VABromoform
FL,NJ,NY,ME,NHBromomethane
NJ,NY,ME,NH,VA1,3-Butadiene
FL,NJ,NY,ME,NH,VA2-Butanone (MEK)
NJ,NY,ME,NH,VACarbon Disulfide
FL,NJ,NY,ME,NH,VACarbon Tetrachloride
FL,NJ,NY,ME,NH,VAChlorobenzene
FL,NJ,NY,ME,NH,VAChloroethane
FL,NJ,NY,ME,NH,VAChloroform
FL,NJ,NY,ME,NH,VAChloromethane
NJ,NY,ME,NH,VACyclohexane
NY,ME,NHDibromochloromethane
NJ,NY,ME,NH1,2-Dibromoethane (EDB)
FL,NJ,NY,ME,NH,VA1,2-Dichlorobenzene
NJ,NY,ME,NH1,3-Dichlorobenzene
FL,NJ,NY,ME,NH,VA1,4-Dichlorobenzene
NY,ME,NHDichlorodifluoromethane (Freon 12)
FL,NJ,NY,ME,NH,VA1,1-Dichloroethane
FL,NJ,NY,ME,NH,VA1,2-Dichloroethane
FL,NJ,NY,ME,NH,VA1,1-Dichloroethylene
FL,NY,ME,NH,VAcis-1,2-Dichloroethylene
NJ,NY,ME,NH,VAtrans-1,2-Dichloroethylene
FL,NJ,NY,ME,NH,VA1,2-Dichloropropane
FL,NJ,NY,ME,NH,VAcis-1,3-Dichloropropene
NY,ME,NHtrans-1,3-Dichloropropene
NJ,NY,ME,NH,VA1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
NJ,NY,ME,NH,VA1,4-Dioxane
FL,NJ,NY,ME,NH,VAEthylbenzene
NJ,NY,ME,NH,VAHeptane
NJ,NY,ME,NH,VAHexachlorobutadiene
FL,NJ,NY,ME,NH,VAHexane
NY,ME,NHIsopropanol
FL,NJ,NY,ME,NH,VAMethyl tert-Butyl Ether (MTBE)
FL,NJ,NY,ME,NH,VAMethylene Chloride
FL,NJ,NY,ME,NH4-Methyl-2-pentanone (MIBK)
NY,ME,NHNaphthalene
FL,NJ,NY,ME,NH,VAStyrene
FL,NJ,NY,ME,NH,VA1,1,2,2-Tetrachloroethane
FL,NJ,NY,ME,NH,VATetrachloroethylene
FL,NJ,NY,ME,NH,VAToluene
NJ,NY,ME,NH,VA1,2,4-Trichlorobenzene
FL,NJ,NY,ME,NH,VA1,1,1-Trichloroethane
FL,NJ,NY,ME,NH,VA1,1,2-Trichloroethane
Page 34 of 38
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
CertificationsAnalyte
CERTIFICATIONS
Certified Analyses included in this Report
EPA TO-15 in Air
FL,NJ,NY,ME,NH,VATrichloroethylene
NY,ME,NHTrichlorofluoromethane (Freon 11)
NJ,NY,ME,NH,VA1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
NJ,NY,ME,NH1,2,4-Trimethylbenzene
NJ,NY,ME,NH1,3,5-Trimethylbenzene
FL,NJ,NY,ME,NH,VAVinyl Acetate
FL,NJ,NY,ME,NH,VAVinyl Chloride
FL,NJ,NY,ME,NH,VAm&p-Xylene
FL,NJ,NY,ME,NH,VAo-Xylene
Con-Test, a Pace Environmental Laboratory, operates under the following certifications and accreditations:
Code Description Number Expires
10899 NELAPNew York State Department of HealthNY 04/1/2024
2516 NELAPNew Hampshire Environmental LabNH 02/5/2024
MA007 NELAPNew Jersey DEPNJ 06/30/2024
E871027 NELAPFlorida Department of HealthFL 06/30/2024
MA00100State of MaineME 06/9/2025
460217Commonwealth of VirginiaVA 12/14/2024
Page 35 of 38
Page 36 of 38
Page 37 of 38
Page 38 of 38

Appendix E

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, P.C.
Hart & Hickman, P.C.
West Side - Worst-case Sub-slab
AquAir II Brownfields Site
13300 Sam Neely Road
DEQ DWM Brownfields
18038-14-060
July 2023
May 2023 EPA RSL Table
North Carolina DEQ Risk Calculator
Table of Contents
Version Date: July 2023
Basis: May 2023 EPA RSL Table
Site ID: 18038-14-060
Exposure Unit ID: West Side - Worst-case Sub-slab
Form No.
Input Form 1A Complete Exposure Pathways
Input Form 1B Exposure Factors and Target Risks
Input Form 1C Contaminant Migration Parameters
Input Form 1D Sample Statistics
Input Form 2A
Input Form 2B Groundwater Exposure Point Concentration Table
Input Form 2C Surface Water Exposure Point Concentration Table
Input Form 2D Soil Gas Exposure Point Concentration Table
Input Form 2E Indoor Air Exposure Point Concentration Table
Output Form 1A Risk for Individual Pathways
Output Form 1B Sitewide Risk
Output Form 2A Resident Soil
Output Form 2B Resident Groundwater Use
Output Form 2C Non-Residential Worker Soil
Output Form 2D Non-Residential Worker Groundwater Use
Output Form 2E Construction Worker Soil
Output Form 2F Recreator/Trespasser Soil
Output Form 2G Recreator/Trespasser Surface Water
Output Form 3A Resident Groundwater to Indoor Air
Output Form 3B Resident Soil Gas to Indoor Air
Output Form 3C Resident Indoor Air
Output Form 3D Non-Residential Worker Groundwater to Indoor Air
Output Form 3E Non-Residential Worker Soil Gas to Indoor Air
Output Form 3F Non-Residential Worker Indoor Air
Output Form 4A Soil to Groundwater - Forward Mode
Output Form 4B Groundwater to Groundwater - Forward Mode
Output Form 4C Soil to Surface Water - Forward Mode
Output Form 4D Groundwater to Surface Water - Forward Mode
Output Form 4E Soil to Groundwater - Backward Mode
Output Form 4F Groundwater to Groundwater - Backward Mode
Output Form 4G
Output Section 4 - Contaminant Migration Worksheets
Output Section 3 - Vapor Intrusion Calculators
TOC
Description
North Carolina DEQ Risk Calculator
Complete Exposure Pathways
Version Date: July 2023
Basis: May 2023 EPA RSL Table
Site ID: 18038-14-060
Exposure Unit ID: West Side - Worst-case Sub-slab
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 2023
Basis: May 2023 EPA RSL Table
Site ID: 18038-14-060
Exposure Unit ID: West Side - Worst-case Sub-slab
Description of Exposure Point Concentration Selection:
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
1400
1.4
7.3
1.1
0.67
1
2.1
0.38
6.1
25
1.2
8.6
2.6
1.8
31
58
3.4
2.9
0.71
5.4
1.8
6.7
0.71
1.1
1.6
2.1
1.9
5.4
2.5
2.2
Input Form 2D
Soil Gas Exposure Point Concentration Table
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.If the chemical list is changed from a prior calculator run, remember to select "See All Chemicals" on the data output sheet or newly added chemicals will not be included in risk calculations
North Carolina DEQ Risk Calculator
DEQ Risk Calculator - Vapor Intrusion - Non-Residential Worker Soil Gas to Indoor Air
Version Date: July 2023
Basis: May 2023 EPA RSL Table
Site ID: 18038-14-060
Exposure Unit ID: West Side - Worst-case Sub-slab
CAS #Chemical Name:
Soil Gas
Concentration
(ug/m3)
Calculated
Indoor Air Concentration
(ug/m3)
Target Indoor
Air Conc. for
Carcinogens @
TCR = 1E-06
Conc. for Non-
Carcinogens @
THQ = 0.2
Calculated
Risk
Non-
Hazard
67-64-1
71-43-2
75-15-0
67-66-3
74-87-3
110-82-775-71-8156-59-2123-91-1
141-78-6
100-41-4
109-99-9
142-82-5 Heptane, N-2.6 0.026 -3.5E+02 1.5E-05
591-78-6 Hexanone, 2-1.8 0.018 -2.6E+01 1.4E-04
67-63-0
78-93-3
108-10-175-09-291-20-3100-42-5
127-18-4
108-88-3
76-13-1
79-01-6
75-69-495-63-6108-67-8108-05-4
108-38-3
95-47-6
Cumulative:8.1E-08 4.3E-03
Output Form 3E
North Carolina DEQ Risk Calculator
Risk for Individual Pathways Output Form 1A
Version Date: July 2023
Basis: May 2023 EPA RSL Table
Site ID: 18038-14-060
Exposure Unit ID: West Side - Worst-case Sub-slab
Receptor Pathway 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 Hazard Index Risk exceeded?
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air NC NC NC
Indoor Air NC NC NC
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air 8.1E-08 4.3E-03 NO
Indoor Air NC NC NC
Pathway Source
Source Soil NC
Source Groundwater NC
Source Soil NC
Source Groundwater NC
DIRECT CONTACT SOIL AND WATER CALCULATORS
Resident
Non-Residential Worker
Recreator/Trespasser
NC 2B Standards, appropriate remediation and/or institutional control measures will be necessary to be eligible for a risk-based
Surface Water
VAPOR INTRUSION CALCULATORS
Resident
Non-Residential Worker
CONTAMINANT MIGRATION CALCULATORS
Target Receptor Concentrations Exceeded?
Groundwater
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.
North Carolina DEQ Risk Calculator