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SOIL, SOIL GAS, AND GROUNDWATER SAMPLING REPORT
WPDA, INC.
FORMER WHITAKER PARK RJ REYNOLDS INDUSTRIAL
PROPERTY
REYNOLDS BOULEVARD
WINSTON-SALEM, FORSYTH COUNTY
BROWNFIELDS PROJECT NUMBER 15031-11-34
ECS PROJECT NO. 49.4532
PREPARED FOR
WPDA, INC.
October 17, 2017

EC i
ECS SOUTHEAST, LLP "Setting the Standard for Service"
Geotechnical • Construction Materials • Environmental • Facilities NC Registered Ergmeermg Firm 4:-107r
NC Registered Geologists F-rm C-dun
SC Regisrei'ed Fngmaenng Firm 323P
October 17, 2017
Mr. Stephen R. Berlin
Attorney for WPDA, Inc.
c/o Kilpatrick Townsend & Stockton, LLP
1001 West Fourth Street
Winston Salem, North Carolina 27101
Reference: Soil, Soil Gas, and Groundwater Sampling Report
WPDA, Inc.
Former Whitaker Park RJ Reynolds Industrial Property
Reynolds Boulevard
Winston-Salem, Forsyth County, North Carolina
Brownfields Project Number 15031-11-34
ECS Project No. 49.4532
Dear Mr. Berlin:
ECS Southeast, LLP (ECS) has prepared our Soil, Soil Gas, and Groundwater Sampling
Report in accordance with our Soil Gas, Soil, and Groundwater Work Plan dated May 16,
2017. If you have any questions concerning this report or this project, please contact us.
Sincerely,
ECS SOUTHEAST, LLP
Rand H. Cavallier
Assis ant Staff Environmental Project Manager
336-856-7150
rcavallier@ecsliLOOWaftOeA
laa6CjI of 33 -8p -0 Prl cir`2
jstewart1 @e4'&Vji��
cc: James Rudder, �P.t':,'NCDWM — Brownfields Group
ECS Capitol Services. PLLC • ECS Florida. LLC • ECS Mid -Atlantic. LLC • ECS Midwest, LLC • ECS Southeast, LLP • ECS Texas. LLP
www.ecslimited.com

Soil, Soil Gas, and Groundwater Sampling Report
WPDA, Inc.
Former Whitaker Park RJ Reynolds Industrial Property
Reynolds Boulevard
Winston-Salem, Forsyth County, North Carolina
Brownfields Project Number 15031-11-34
ECS Project No. 49.4532
October 17, 2017
TABLE OF CONTENTS
1.0 PROJECT INFORMATION...................................................................................2
2.0 PROPOSED DEVELOPMENT.............................................................................2
3.0 FIELD ACTIVITIES...................................................................................................2
4.0 RESULTS.................................................................................................................6
5.0 CONCLUSIONS AND RECOMMENDATIONS........................................................10
6.0 QUALIFICATIONS OF REPORT.............................................................................11
FIGURES
Figure 1
Site Location Map
Figure 2
Site Map
Figure 3
Area 1 Soil Gas Sample Location Map
Figure 4
Area 2 Soil Gas Sample Location Map
Figure 5
Area 2 Soil and Groundwater Sample Location Map
Figure 6
Area 4 Soil Gas Sample Location Map
TABLES
Table 1
Summary of Soil Gas Analytical Results
Table 2
Summary of Soil Gas Analytical Results
Table 3
Summary of Soil Gas Analytical Results
Table 4
Summary of Soil Analytical Results
Table 5
Summary of Soil Sample Results
Table 6
Summary of Groundwater Analytical Results
APPENDICIES
Appendix A
Work Plan
Appendix B
Work Plan Approval
Appendix C
Site Photographs
Appendix D
Laboratory Data Sheets and Chain of Custody Records
1

Soil, Soil Gas, and Groundwater Sampling Report
WPDA, Inc.
Former Whitaker Park RJ Reynolds Industrial Property
Reynolds Boulevard
Winston-Salem, Forsyth County, North Carolina
Brownfields Project Number 15031-11-34
ECS Project No. 49.4532
October 17, 2017
1.0 PROJECT INFORMATION
WPDA, Inc. recently acquired the RJ Reynolds Whitaker Park property located north of
downtown Winston-Salem, Forsyth County, North Carolina along Reynolds Boulevard and
Shorefair Drive (Figure 1 and 2). This property has been divided into four areas to denote
eligibility under the North Carolina Department of Environmental Quality (NCDEQ) Brownfields
Program. The NCDEQ Brownfields Group (NCBG) has determined that the eligibility status of
Areas 1, 2, and 4 are "active eligible", and Area 3 is "inactive eligible". For the purposes of
this report, only Areas 1, 2, and 4 were investigated. On June 14, 2106, the NCBG sent
WPDA, Inc. a letter requiring additional environmental assessment in the three areas. This
report includes the proposed procedures and activities used to accomplish the environmental
assessment. A work plan to assess these areas was submitted to the North Carolina
Brownfields Group and approved on June 14, 2017. A copy of the work plan is included in
Appendix A and the approval is included in Appendix B.
2.0 PROPOSED DEVELOPMENT
The recently acquired property is currently planned to be redeveloped with a combination of
light industrial, research facilities, commercial, and multi -family residential housing.
3.0 FIELD ACTIVITIES
3.1 Scope of Work
The work plan proposed the collection of thirty sub -slab soil gas samples from beneath the
existing buildings at the site, five soil gas samples from a depth of five feet below the ground
surface (bgs) across the site, nine soil samples from the former warehouse areas, fueling area
and coal pile area, and one groundwater sample in the vicinity of the fueling area. The soil
borings, groundwater boring and outdoor soil gas soil borings were drilled using a Geoprobe°
drill rig. The drilling contractor used for this project was 3-D Environmental Investigations, LLC
(3-D). The sub -slab holes were drilled through the concrete slabs using a hammer drill. Site
Photographs are included in Appendix C.
3.2 Area 1 (Soil Gas Assessment)
3.2.1 Building 601-11
On June 26, 2017, ECS mobilized to the site to collect six sub -slab soil gas samples SG-1
through SG-6 beneath building 601-11 (Figure 3). Temporary sub -slab vapor probes were
placed by drilling a hole through the floor slab at each location. Prior to drilling the probe holes,
the floor was inspected for cracks, joints, and other floor penetrations. The holes were placed at
least three feet from these penetrations, if possible. The holes were 3/8 - inch in diameter and
extended through the slab and into the sub -grade material approximately two to three inches. A
soil vapor probe was placed in each hole. Each probe was constructed of % - inch Nylaflow
tubing with a porous air stone connect to the end of the tubing. The tubing was sealed at the
floor surface with bentonite powder hydrated with distilled water.
pa

Soil, Soil Gas, and Groundwater Sampling Report
WPDA, Inc.
Former Whitaker Park RJ Reynolds Industrial Property
Reynolds Boulevard
Winston-Salem, Forsyth County, North Carolina
Brownfields Project Number 15031-11-34
ECS Project No. 49.4532
October 17, 2017
A syringe was connected to the tubing to purge the tubing. Three volumes of the tubing were
purged prior to sample collection. Following purging, the tubing was connected to a 400 ml
Summa canister. The Summa canister was fitted with a flow regulator. The flow rate for both
purging and sample collection were 0.2 liters per minute. The pressure in the canister was
recorded before and after sample collection. Other parameters that were measured include
ambient temperature before and after sample collection and recent weather conditions. Prior to
sample collection a shut-in test was conducted to assess for leaks in the fittings and regulator.
3.2.1.1 Leak Detection
Prior to collecting the soil gas samples, laboratory grade helium gas was used as a quality
assurance control measure to confirm the integrity of the probe seal. A plastic cylinder was
placed and sealed over the sampling point and purged with laboratory grade helium. The probe
point tubing and tracer gas tubing was placed through the cylinder wall via rubber grommets.
The cylinder was placed on a 4-inch rubber gasket and held securely to the slab with a heavy
weight. During the purging stage, the cylinder was flooded with laboratory grade helium via the
hose placed through the cylinder wall. A Model MGD-2002 Multi -Gas Leak detector or similar
meter was connected to the probe tube and the air stream being purged was measured for
helium. A helium concentration of less than five percent helium was considered acceptable. If
concentrations greater than five percent helium were measured, the probe tube seal was
reseated and the leak detection process was repeated.
Following sample collection, the canisters were labeled and maintained under Chain -of -Custody
(COC) until delivered to H&P Mobile Geochemistry Inc. in Carlsbad, California. Each sample
was analyzed for volatile organic compounds (VOCs) using EPA Method TO-15. Following
collection of the samples, the probes were removed and the holes filled with cement grout.
3.2.1.2 Radon Gas Sampling
Radon gas sampling was conducted at the sub -slab soil gas sample location SG-5 in Building 601-
11 to calculate a site -specific attenuation factor. Two radon gas samples were collected, one
below the concrete slab (SS-1) and one above the concrete slab (AS-1). These two samples were
collected at the SSG-07 location (Figure 3).
The radon sample was collected by using a sterile syringe to extract sub -slab vapor and fill a clean
tedlar bag. Once the tedlar bag was filled, the bag was sealed and placed in packaging material in
preparation for shipment. The above slab radon sample was also collected using a sterile syringe
to grab a representative sample of the indoor air just above the surface of the concrete slab.
Again, the sample was collected with a syringe and placed into a clean tedlar bag that was then
sealed and placed in packaging material in preparation for shipment. The radon gas samples were
maintained under chain -of -custody until delivered to H&P Mobile Geochemistry Inc. in Carlsbad,
California where they were sent the University of Southern California for analysis. Each sample
was analyzed for radon.
3

Soil, Soil Gas, and Groundwater Sampling Report
WPDA, Inc.
Former Whitaker Park RJ Reynolds Industrial Property
Reynolds Boulevard
Winston-Salem, Forsyth County, North Carolina
Brownfields Project Number 15031-11-34
ECS Project No. 49.4532
October 17, 2017
3.2.2 Building 601-1
On July 5, 2017, ECS mobilized to the site to collect sub -slab soil gas samples SG-13 and SG-
14 in the area of the former hazardous waste storage area and sub -slab samples SG-15 and
SG-16 beneath the former maintenance shop in Building 601-1 (Figure 3). The samples were
collected as described above.
3.2.3 Exterior Soil Gas Samples
On June 27, 2017, ECS mobilized to the site to collect soil gas sample SG-7 along the north -
central property line of Area 1 and SG-8 near the northeast corner of Building 601-1 (Figure 3).
The exterior soil gas samples were collected by driving a direct push sampler to five feet below
the ground surface (bgs). The borings were drilled by 3D Environmental Investigations, LLC
(3D).The Nylfow tubing and air stone were lowered into the boring. Approximately one foot of
clean coarse sand was placed around the air stone. A seal consisting of three feet of bentonite
powder was hydrated with distilled water. The soil gas probe was allowed to stabilize for four
hours before the soil gas sample was collected. The soil gas samples were collected in similar
manner as described above.
3.3 Area 2 (Soil Gas Assessment)
3.3.1 Buildings 605-1, 605-8, 605-11, 605-13, and Building 130
Buildings 605-1, 605-8, 605-11, 605-13, and Building 130 were all interconnected with their
interiors open from one end of the complex to the other. On July 6, 2017, ECS mobilized to the
site to collect sub -slab soil gas samples SG-17 and SG-18 beneath Building 605-11, samples
SG-19 and SG-20 beneath Building 605-1, sample SG-21 beneath Building 605-13, sample SG-
22 beneath Building 130, and sample SG-23 beneath Building 605-8 (Figure 4).
3.3.2 Buildings 2-1 and 2-2
On July 7, 2017, ECS mobilized to the site to collect sub -slab soil gas samples SG-24, SG-25,
and Dup-2-1 beneath Building 2-1 and samples SG-26 and SG-27 were collected beneath
building 2-2 (Figure 4).
3.3.3 Building 605-12
On July 7, 2017, ECS mobilized to the site to collect sub -slab soil gas samples SG-28, SG-29,
and Dup-605-12 beneath Building 605-12 (Figure 4).
3.3.4 Buildings 605-7 and 605-10
On July 7, 2017, ECS mobilized to the site to collect sub -slab soil gas sample SG-30 beneath
Building 605-7 and sample SG-31 was collected beneath Building 605-10 (Figure 4).
4

Soil, Soil Gas, and Groundwater Sampling Report
WPDA, Inc.
Former Whitaker Park RJ Reynolds Industrial Property
Reynolds Boulevard
Winston-Salem, Forsyth County, North Carolina
Brownfields Project Number 15031-11-34
ECS Project No. 49.4532
October 17, 2017
3.3.5 Exterior Soil Gas Samples
On June 26, 2017, ECS mobilized to the site to collect soil gas sample SG-9 within the former
building concrete pad in the northwest warehouse area. Soil gas samples SG-10 through SG-12
were collected on the same day along the western property line (Figure 4). The exterior soil gas
samples were collected as previously discussed.
3.4 Area 2 (Soil Assessment)
3.4.1 Former Coal Pile
On June 27, 2017, ECS mobilized to the site to collect one soil sample (GP-10) from 0.0 to 1.0
foot bgs in two locations. The samples were collected using a decontaminated hand auger.
The soil was placed in a zip -lock bag and thoroughly mixed. The sample was packaged and
submitted to Research and Analytical Laboratories, Inc. (R&A), a North Carolina certified laboratory
and analyzed for the total RCRA metals plus hexavalent chromium. Duplicate sample Dup-3
was analyzed for total RCRA metals. The location of the soil borings are shown on Figure 5.
3.4.2 Northeast and Northwest Warehouse Areas
On June 27, 2017, ECS mobilized to the site to collect composite soil samples GP-1 through
GP-4 (Northeast Warehouse Area) and GP-7 through GP-9 (Northwest Warehouse Area)
within the former warehouse areas (Figure 5). Each composite sample was composed of four
different aliquots collected from 0.0-1.5 feet bgs. The four aliquots of soil were placed in a zip -
lock bag and thoroughly mixed. A portion of each sample was packaged and submitted to R&A to
be analyzed for herbicides and pesticides using EPA Methods 8151 and 8081, respectively.
Sample Dup-1 was a duplicate sample for sample GP-3.
On September 13, 2017, ECS returned to the site to collect additional samples in the area
where GP-3 was collected on June 27, 2017. The sample GP-3A was collected in the same
manner and fashion as the original sample (GP-3) and the new sample borings were placed
within inches of the original borings. The sample was thoroughly mixed and placed into bottles
supplied by the laboratory. A portion of the sample was sent to R&A Laboratory and a portion
was sent to Prism Laboratory. A duplicate sample (GP-3B) was also collected and sent to each
laboratory. The samples were analyzed for pesticides using EPA Method 8081.
3.4.3 Former Fueling Area
On June 27, 2017, ECS mobilized to the site to collect two soil samples (GP-5 and GP-6) in the
vicinity of the former fueling area Figure 5. The borings were drilled by 3D using direct push
technology to a depth of 15 feet bgs. Soil samples were collected continuously starting at the
surface to the boring termination. The soil samples were classified in the field by an ECS
professional and screened for volatile organic vapors using a flame ionization detector (FID). The
soil sample from each boring with the highest FID reading was selected for analysis. Each sample
was packaged and submitted to R&A and analyzed for volatile and semi -volatile organic
compounds (VOCs and SVOCs) using EPA Method 8260 and 8270, respectively. A duplicate
5

Soil, Soil Gas, and Groundwater Sampling Report
WPDA, Inc.
Former Whitaker Park RJ Reynolds Industrial Property
Reynolds Boulevard
Winston-Salem, Forsyth County, North Carolina
Brownfields Project Number 15031-11-34
ECS Project No. 49.4532
October 17, 2017
sample (Dup-2) was collected from soil boring GP-6 and analyzed for the same constituents.
The soil borings were abandoned using bentonite clay.
3.5 Area 2 (Groundwater Assessment)
On June 27, 2017, ECS deepened soil boring GP-6 to five feet below the water table
(approximately 20 feet bgs). A discrete groundwater sample (GW-1) was collected using a
peristaltic pump and placed directly into the laboratory supplied bottles. The sample was packaged
and submitted to R&A and analyzed for VOCs and SVOCs using EPA Method 8260 and 8270,
respectively. The boring was abandoned using bentonite clay.
3.6 Area 4 (Soil Gas Assessment)
3.6.1 Building 630 Sub -Slab Samples
On July 12, 2017, ECS mobilized to the site to collect sub -slab soil gas samples SG-33, SG-34,
and SG-35 from three individual laboratories in Building 630 (Figure 6). The samples were
collected as described above.
3.6.2 Exterior Soil Gas Sample
On July 12, 2017, ECS mobilized to the site to collect soil gas sample SG-32 adjacent to the
former Hazardous Waste Storage building located north of Building 630 (Figure 6).
4.0 RESULTS
4.1 Area 1 (Soil Gas Assessment)
4.1.1 Building 601-11
Laboratory analysis of sub -slab soil gas samples SG-1 through SG-6 detected up to twenty
VOCs above the laboratory detection limits; however, the concentrations do not exceed the
North Carolina Department of Environmental Quality (NCDEQ), Division of Waste Management
(DWM) Residential or Non -Residential Vapor Intrusion Screening Concentrations. A summary of
the laboratory results are shown on Table 1. The laboratory data sheets are included in
Appendix D.
4.1.1.1 Radon Results
Laboratory analysis detected radon at a concentration of 642 pico Curies per liter (pCi/L) in sample
SG-5 collected from below the concrete slab and 1.60 pCi/L in sample SG-5 collected above the
concrete slab. Based on this data, a site specific attenuation factor of 0.0025 was calculated (1.60
pCi/L / 642 pCi/L).
X

Soil, Soil Gas, and Groundwater Sampling Report
WPDA, Inc.
Former Whitaker Park RJ Reynolds Industrial Property
Reynolds Boulevard
Winston-Salem, Forsyth County, North Carolina
Brownfields Project Number 15031-11-34
ECS Project No. 49.4532
October 17, 2017
4.1.2 Building 601-1
Laboratory analysis of sub -slab soil gas samples SG-13 and SG-14 detected up to eighteen
VOCs above the laboratory detection limits; however, the concentrations do not exceed the
NCDEQ, Division DWM Residential or Non -Residential Vapor Intrusion Screening
Concentrations. Laboratory analysis of sub -slab soil gas samples SG-15 and SG-16 collected in
the area of the former maintenance shop, detected ethylbenzene and xylenes at concentrations
that exceed their respective Residential Vapor Intrusion Screening levels but below the Non-
residential Vapor Intrusion Screening levels. A summary of the laboratory results are shown on
Table 2. The laboratory data sheets are included in Appendix D.
4.1.3 Exterior Soil Gas Samples — Buildings 601-1 and 601-11
Laboratory analysis of soil gas samples SG-7, Dup-601 (duplicate sample of sample SG-7), and
SG-8 detected up to twenty VOCs above the laboratory detection limits; however, the
concentrations do not exceed the Residential or Non -Residential Vapor Intrusion Screening
Concentrations. There was good comparison between the analysis of samples SG-7 and Dup-
601. A summary of the laboratory results are shown on Table 1. The laboratory data sheets are
included in Appendix D.
4.2 Area 2 (Soil Gas Assessment)
4.2.1 Buildings 605-1, 605-8, 605-11, 605-13, and Building 130
Laboratory analysis of sub -slab soil gas samples SG-17, Dup-605 (duplicate sample of sample
SG-17), (Building 605-11), SG-21 (Building 605-13), and SG-22 (Building 130) detected up to
nineteen VOCs above the laboratory detection limits; however, the concentrations do not
exceed the Residential or Non -Residential Vapor Intrusion Screening Concentrations.
Laboratory analysis of sub -slab soil gas samples SG-18 (Building 605-11), SG-19 and SG-20
(Building 605-1) detected tetrachloroethene (PCE) at concentrations that exceed their
respective Residential Vapor Intrusion Screening Concentrations with the PCE concentrations in
samples SG-18 and SG-20 exceeding the Non -Residential Vapor Intrusion Screening
Concentrations. Elevated concentrations of trichlorofluoromethane (Freon 11) were detected in
samples SG-19 through SG-22. Freon 11 does not have an established vapor screening level.
Sub -slab soil gas sample SG-23 was not analyzed because the summa canister malfunctioned
and did not collect a sample. There was good comparison between the analysis of samples SG-
17 and Dup-605. A summary of the laboratory results are shown on Tables 2 and 3. The
laboratory data sheets are included in Appendix D.
4.2.2 Buildings 2-1 and 2-2
Laboratory analysis of sub -slab soil gas samples SG-24, Dup-2-1 (duplicate sample of sample
SG-24), SG-25, SG-26, and SG-27 detected up to nineteen VOCs above the laboratory
detection limits; however, the concentrations do not exceed the Residential or Non -Residential
Vapor Intrusion Screening Concentrations. There was good comparison between the analysis of
samples SG-24 and Dup-2-1. A summary of the laboratory results are shown on Table 3. The
7

Soil, Soil Gas, and Groundwater Sampling Report
WPDA, Inc.
Former Whitaker Park RJ Reynolds Industrial Property
Reynolds Boulevard
Winston-Salem, Forsyth County, North Carolina
Brownfields Project Number 15031-11-34
ECS Project No. 49.4532
October 17, 2017
laboratory data sheets are included in Appendix D.
4.2.3 Building 605-12
Laboratory analysis of sub -slab soil gas samples SG-28, Dup-605-12 (duplicate sample of
sample SG-28, and SG-29 detected up to nineteen VOCs above the laboratory detection limits;
however, the concentrations do not exceed the Residential or Non -Residential Vapor Intrusion
Screening Concentrations. There was good comparison between the analysis of samples SG-
28 and Dup-605-12. A summary of the laboratory results are shown on Table 3. The laboratory
data sheets are included in Appendix D.
4.2.4 Buildings 605-7 and 605-10
Laboratory analysis of sub -slab soil gas samples SG-30 and SG-31 detected up to nine VOCs
above the laboratory detection limits; however, the concentrations do not exceed the Residential
or Non -Residential Vapor Intrusion Screening Concentrations. A summary of the laboratory
results are shown on Table 4. The laboratory data sheets are included in Appendix B.
4.2.5 Exterior Soil Gas Samples — Northwest Warehouse Area
Laboratory analysis of soil gas samples SG-9, Dup-6050 (duplicate sample of sample SG-9,
and SG-10 through SG-12 detected up to nineteen VOCs above the laboratory detection limits;
however, the concentrations do not exceed the Residential or Non -Residential Vapor Intrusion
Screening Concentrations. There was good comparison between the analysis of samples SG-9
and Dup-6050. A summary of the laboratory results are shown on Tables 1 and 2. The
laboratory data sheets are included in Appendix B.
4.3 Area 2 (Soil Assessment)
4.3.1 Former Coal Pile
Laboratory analysis of soil samples GP-10 and Dup-3 (duplicate of sample GP-10) detected
barium, chromium (III), arsenic, lead, and mercury at concentrations above the laboratory
detection limits but below the NCDEQ Inactive Hazardous Sites Branch (IHSB) Unrestricted Use
Health Based Preliminary Soil Remediation Goals (PSRGs). Laboratory analysis did not detect
hexavalent chromium (Chromium VI) above the laboratory detection limits. A summary of the
laboratory results are shown on Table 5. The laboratory data sheets are included in Appendix
B.
4.3.2 Northeast and Northwest Warehouse Areas
Laboratory analysis of composite soil samples GP-1 through GP-4 and GP-7 through GP-9
collected on June 27, 2017 detected the pesticides DDE and DDT at concentrations above the
laboratory detection limits but below the Unrestricted Use Health Based PSRGs. Laboratory
analysis of soil samples GP-3 and Dup-1 (duplicate of sample GP-3) detected the pesticides
Dieldrin at concentrations above the laboratory detection limits but below the PSRGs.
Fn

Soil, Soil Gas, and Groundwater Sampling Report
WPDA, Inc.
Former Whitaker Park RJ Reynolds Industrial Property
Reynolds Boulevard
Winston-Salem, Forsyth County, North Carolina
Brownfields Project Number 15031-11-34
ECS Project No. 49.4532
October 17, 2017
Laboratory analysis of soil samples GP-4 and GP-8 detected the pesticides DDD at
concentrations above the laboratory detection limits
(Lindane) was also detected in soil sample GP-8 but
composite soil sample Dup-1 detected Aldrin, DDE,
epoxide above their laboratory detection limits with
Industrial/Commercial PSRG. ECS confirmed with R&
duplicate sample of GP-3 was approximately ten timE
G P-3.
but below the PSRGs. Gamma-BHC
below its PSRG. Laboratory analysis of
DDT, Dieldrin, Eldrin, and Heptachlor
the concentration of Aldrin above its
4 that the concentration of Aldrin in the
�s the concentration of Aldrin in sample
Analysis of the sample collected on September 13, 2017 (GP-3A and duplicate GP-3B),
detected Aldrin, DDD, DDE, DDT, Heptachlor and Heptachlor epoxide, Chlorodane and its
isomers, Endosulfan I, and Endrin ketone at concentrations above the laboratory detection limits
but below the PSRGs. The compounds detected and the concentrations detected between
laboratories were similar. The analysis also detected Dieldrin above the unrestricted use PSRG
but below its industrial PSRG in the samples sent to both laboratories.
A summary of the laboratory results are shown on Table 5. The laboratory data sheets are
included in Appendix D.
4.3.3 Former Fueling Area
Laboratory analysis of soil samples GP-6 and Dup-2 (duplicate of sample GP-6) detected 1,1,1-
trichloroethane above the laboratory detection limits but below its PSRG. SVOCs were not
detected above the laboratory reporting limits. VOCs and SVOCs were not detected in soil
sample GP-5 above the laboratory reporting limits. A summary of the laboratory results are
shown on Table 5. The laboratory data sheets are included in Appendix D.
4.4 Area 2 (Groundwater Assessment)
Laboratory analysis of groundwater sample GW-6 detected carbon tetrachloride at a
concentration of 8.0 parts per billion (ppb). The North Carolina 2L Groundwater Quality Standard
(NC2LGWQS) for carbon tetrachloride is 0.3 ppb. A summary of the laboratory results are shown
on Table 6. The laboratory data sheets are included in Appendix D.
4.5 Area 4 (Soil Gas Assessment)
4.5.1 Building 630 Sub -Slab Samples
Laboratory analysis of sub -slab soil gas sample SG-35 detected five VOCs above the laboratory
detection limits; however, the concentrations do not exceed the Residential or Non -Residential
Vapor Intrusion Screening Concentrations. Laboratory analysis of sub -slab soil gas samples
SG-33, Dup-630 (duplicate of sample SG-33), and SG-35 detected dichlorodifluoromethane
(Freon 12) at concentrations that exceed the Residential and Non -Residential Vapor Intrusion
Screening Concentrations. There was good comparison between the analysis of samples SG-
33 and Dup-630. A summary of the laboratory results are shown on Table 4. The laboratory
data sheets are included in Appendix D.
9

Soil, Soil Gas, and Groundwater Sampling Report
WPDA, Inc.
Former Whitaker Park RJ Reynolds Industrial Property
Reynolds Boulevard
Winston-Salem, Forsyth County, North Carolina
Brownfields Project Number 15031-11-34
ECS Project No. 49.4532
October 17, 2017
4.5.2 Exterior Soil Gas Sample
Laboratory analysis of soil gas sample SG-32 detected five VOCs above the laboratory
detection limits; however, the concentrations do not exceed the Residential or Non -Residential
Vapor Intrusion Screening Concentrations. A summary of the laboratory results are shown on
Table 4. The laboratory data sheets are included in Appendix D.
5.0 CONCLUSIONS AND RECOMMENDATIONS
5.1 Area 1
5.1.1 Building 601-11
Laboratory analysis of soil gas samples collected in Area 1 and beneath Building 601-11
detected VOCs above the laboratory detection limits; however, the concentrations do not
exceed the Residential or Non -Residential Vapor Intrusion Screening Concentrations. Based on
the results of this assessment, ECS does not recommend additional assessment of soil gas.
5.1.2 Building 601-1
Laboratory analysis of soil gas samples collected beneath Building 601-11 detected VOCs
above the Residential but not the Non -Residential Vapor Intrusion Screening Concentrations.
Based on the results of this assessment, ECS does not recommend additional assessment of
soil gas. It is our understanding that Building 601-1 is not going to be redeveloped for
residential use.
5.2 Area 2
5.2.1 Buildings 605-1, 605-8, 605-11, 605-13, and Building 130
Laboratory analysis of soil gas samples collected beneath Buildings 605-11 and 605-1 detected
PCE at concentrations that exceed its respective Residential and Non -Residential Vapor
Intrusion Screening Concentrations and elevated concentrations of Freon 11.
5.2.2 Buildings 2-1, 2-2, 605-7, 605-10, and 605-12
Laboratory analysis of soil gas samples collected beneath Buildings 2-1 and 2-1 detected VOCs
above the laboratory detection limits; however, the concentrations do not exceed the Residential
or Non -Residential Vapor Intrusion Screening Concentrations. Based on the results of this
assessment, ECS does not recommend additional assessment of soil gas.
5.2.3 Exterior Soil Gas Samples
Laboratory analysis of soil gas samples collected within the former building concrete pad in the
northwest warehouse area and along the western property line detected VOCs above the
10

Soil, Soil Gas, and Groundwater Sampling Report
WPDA, Inc.
Former Whitaker Park RJ Reynolds Industrial Property
Reynolds Boulevard
Winston-Salem, Forsyth County, North Carolina
Brownfields Project Number 15031-11-34
ECS Project No. 49.4532
October 17, 2017
laboratory detection limits but below the Residential or Non -Residential Vapor Intrusion
Screening Concentrations. Based on the results of this assessment, ECS does not recommend
additional assessment of soil gas.
5.3 Area 2 (Soil and Groundwater Assessment)
5.3.1 Former Coal Pile
Laboratory analysis of soil samples collected in the area of the former coal pile detected metals
above the laboratory detection limits but below the NCDEQ IHSB Unrestricted Use Health
Based PSRGs. Based on the results of this assessment, ECS does not recommend additional
assessment in this area.
5.3.2 Northeast and Northwest Warehouse Areas
Laboratory analysis of the duplicate of composite soil sample GP-3 collected on June 27, 2017
in the vicinity of the northeast warehouse area detected the pesticide Aldrin above its
Industrial/Commercial PSRG. Since there was not a good comparison of the results of the soil
sample and it's duplicate, ECS conducted additional assessment in this area on September 13,
2017 to confirm the presence of this pesticide. The assessment did not detect Aldrin in the
sample, but did detect the pesticides Heptachlor, Chlordane and its isomers, and Dieldrin which
were not detected in the June 27, 2017. Except for Dieldrin, the newly detected pesticides were
not detected above the unrestricted use PSRG. Dieldrin was detected above the unrestricted
use PSRG but below its industrial PSRG in the samples sent to both laboratories.
Aldrin and Dieldrin are very similar pesticides/insecticides in their chemical composition and
Aldrin is known to degrade to Dieldrin. Therefore the presence of Aldrin in the June 27, 2017
sample and Dieldrin in the September 13, 2017 set of samples may be the result of Aldrin being
used at the site in the past and the presence of Dieldrin being a breakdown product of Aldrin.
5.3.3 Former Fueling Area
Laboratory analysis of soil samples collected in the vicinity of the former fueling area detected
1,1,1-trichloroethane above the laboratory detection limits but below its PSRG. Laboratory
analysis of the groundwater sample collected in this area detected carbon tetrachloride at a
concentration above its NC2LGWQS. Based on the results of this assessment, ECS does not
recommend additional assessment in this area.
6.0 QUALIFICATIONS OF REPORT
The activities and evaluative approaches used in this assessment are consistent with those
normally employed in environmental assessment projects of this type. Our evaluation of site
conditions has been based on our understanding of the site project information and the data
obtained during our field activities. This report was prepared for the express use of WPDA, Inc.
Use of this report by other individuals or companies implies their acceptance of the General
Conditions of Service of the original contract.
11

FIGURES

A
Mal
A Fghh
FIN
11
� � -P- - RJR

F
' va
I!.
• T ■0 SG-7/Dup-601
La"
MIR be
SG-3 0 -4 I
0 ed
SG-2 SG-5
0 0
r4�4
601-1'�
SG-1 SG-6
0f�
sG-1 Q 60
SG-15
SG-14 ' _
- SG-13 ` -a
" .x
'
EXPLANATION
y
APPROXIMATE SITE BOUNDARY
#
0
SOIL GAS SAMPLE
+f
r+
0
SOIL GAS/RADON SAMPLE
*�
601-
BUILDING NUMBER`
t
SOURCE:
FIGURE 3
AREA 1
SOIL GAS SAMPLE LOCATION MAP
GOOGLE EARTH AERIAL PHOTOGRAPH,
l
RJR WHITAKER PARK
DATED 2015
`\
REYNOLDS BOULEVARD
�. WINSTON-SALEM, FORSYTH COUNTY, INC
= 330'
TM
PROJECT NO. 49-4532

I' r �
+ , a
r
r
4X
NW WAREHOUSE AREA rG-29
♦SG-11 SG 9/Dup-6050 °� ♦ SSG-28/Dup-605-12 -:ram '
605-12 605-10 ► �tl�x+
♦ 5G-22♦ 130 %1, G-31 -
�"'- -- 7 -23 ♦#SG-30
'47 605-7 ` r
SG-20, ' 605-8 "
♦ SSG-21
.w S -19 605-13 '
� 4• f � ti
'� •-18gg 05-1
SSG♦ ,�
605-11
SSG-226 ,
,G-27 �
Building 4-2—e!♦ '
' Suring 2-1
' SG-24/Dui
r _ k

I' r �
+ , a
r
r
rr .� • F , T � ti� J -i
NW WAREHOUSE AREA
•E GP-8 i
_ GP-7 4
605-12 605-WIL GP-9
130 r
- - +a`605-7
605-8 GP-3/Dup1—GP3A/GP-3B
.w 605-13 ' GP qp�
`4 'i ♦ y0G
605-1 GP-5/Dup 2. `s'ccq
-� '� t �_♦ -2 �Fq
605-11
��, _-••. GP-6/GW-1 GP-1
FORMER FUELING AREA 'r GAP-10wup-3
.....�
ft-
j COAL PILE AREA

SOURCE:
GOOGLE EARTH AERIAL PHOTOGRAPH,
DATED 2015
= 420'
77 .
A
G-3
1p
- EXPLANATION
APPROXIMATE SITE BOUNDARY
Q SOIL GAS SAMPLE
s
t � BUILDING NUMBER
N
FIGURE 6
�E E
AREA 4 SOIL GAS SAMPLE LOCATION MAP
RJR WHITAKER PARK
REYNOLDS BOULEVARD
�.� WINSTON-SALEM, FORSYTH COUNTY, INC
ECS PROJECT NO. 49-4532
T.

TABLES

TABLE 1: SUMMARY OF SOIL GAS ANALYTICAL RESULTS - BUILDING 601-11 AND EXTERIOR SAMPLES BUILDINGS 601-1 and 601-11
WPDA, Inc.
Winston Salem, Forsyth County, North Carolina
ECS Project 49-4532
Parameter
ANALYTICAL RESULTS
Acceptable
Residential Vapor
Intrusion
Screening Levels
Acceptable Non -
Residential Vapor
Intrusion
Screening Levels
Location
Building 601-11
Exterior Building 601-1 and 601-11
Sample ID
SG-1
SG-2
SG-3
I SG-4
SG-5
SG-6
SG-7
Dup-601
SG-8
Date Sampled
6/26/2017
6/27/2017
Dichlorodifluoromethane (F12)
6.8
8.8
6.9
9.1
8.2
7.3
<5.0
<5.0
<5.0
695
8,760
Trichlorofluoromethane (F1 1)
13
<5.6
<5.6
<5.6
100
1,400
<5.6
-1.1
280
NS
NS
Benzene
<3.2
<3.2
6.1
<3.2
<3.2
3.9
17
21
19
120
1,570
Carbon Disulfide
<6.3
25
47
<6.3
27
17
32
4,870
61,300
Chloroform
<4.9
<4.9
<4.9
<4.9
<4.9
<4.9
<4.9
11
40.7
533
Chloromethane
<2.1
<2.1
<2.1
<2.1
<2.1
<2.1
20
25
12
626
7,880
Chloroethane
<8.0
<8.0
<8.0
<8.0
<8.0
<8.0
<8.0
<8.0
NS
NS
2-Butanone (MEK)
<30
30
<30
<30
<30
<30
<30
<30
<30
4,170
438,000
cis-1,2-Dichloroethene
<4.0
<4.0
<4.0
<4.0
<4.0
5.4
NS
NS
Ethylbenzene
9
<4.4
9.9
<4.4
<4.4
<4.4
5.6
374
4,910
4-Ethyltoluene
5.1
<5.0
5.7
<5.0
<5.0
<5.0
NS
NS
Methylene Chloride
<3.5
<3.5
<3.5
<3.5
<3.5
4.5
4,170
52,600
Toluene
13
7.6
59
3.9
20
14
13
4.8
34
34,800
438,000
Tetrachloroethewne (PCE)
<6.9
24
<6.9
39
23
8.5
<6.9
56
278
3,500
Trichloroethene (TCE)
<5.5
<5.5
<5.5
<5.5
<5.5
<5.5
<5.5
12
13.9
175
1,3,5-Trimethylbenzene
8.1
<5.0
6.9
<5.0
<5.0
5.0
<o.0
6.4
NS
NS
1,2,4-Trimethylbenzene
21
16
24
13
15
22
16
11
25
48.7
613
Vinyl Chloride
<2.6
<2.6
<2.6
<2.6
<2.6
<2.6
5.0
55.9
2,790
m&p-Xylenes
44
10
42
<8.8
17
17
13
21
695
8,760
o-Xylene
18
5.2
18
4.5
7.8
9.5
7.9
5.4
12
695
8,760
Notes:
Concentrations are presented in micrograms per cubic meter (pg/m3)
NS = No Standard
BOLD = Exceeds DWM Non-ResidentialVapor Intrusion Screening Concentrations
DWM = Division of Waste Management
Dup-601 = Duplicate of Sample SG-7
Dup-6050 = Duplicate of Sample SG-9

TABLE 2: SUMMARY OF SOIL GAS ANALYTICAL RESULTS - NORTHWEST WAREHOUSE AREA, BUILDING 601-1 AND 605-11
Whitaker Park
Winston Salem, Forsyth County
ECS Project No. 4532
Parameter
ANALYTICAL RESULTS
Acceptable
Residential Vapor
Intrusion
Screening Levels
Acceptable Non -
Residential Vapor
Intrusion
Screening Levels
Location
NW Warehouse Area
Building 601-1
Building 605-11
Sample ID
SG-9
Dup-6050
SG-10
SG-11
SG-12
SG-13
SG-14
SG-15
SG-16
SG-17
Dup-605
SG-18
Date Sampled
6/27/2017
7/5/2017
7/6/2017
Dichlorodifluoromethane (F12)
<5.0
<5.0
<5.0
<5.0
<5.0
47
64
27
35
9.0
<5.0
<5.0
695
8,760
Trichlorofluoromethane (F11)
<5.6
<5.6
<5.6
<5.6
<5.6
210
32
<5.6
32
57
<5.6
250
NS
NS
Benzene
23
14
4.7
8.1
5.7
6.3
7.8
8.9
<3.2
<3.2
14
<3.2
120
1,570
Carbon Disulfide
<6.3
12
<6.3
<6.3
<6.3
14
12
<6.3
22
17
12
13
4,870
61,300
Chloroform
<4.9
<4.9
6.3
<4.9
<4.9
<4.9
<4.9
<4.9
<4.9
<4.9
<4.9
<4.9
40.7
533
Chloromethane
49
33
40
2.5
4.2
2.7
5.2
<2.1
<2.1
<2.1
33
<2.1
626
7,880
Chloroethane
15
10
<8.0
<8.0
<8.0
<8.0
<8.0
<8.0
<8.0
<8.0
10
<8.0
NS
NS
2-Butanone (MEK)
<30
<30
<30
30
<30
<30
740
<30
<30
<30
<30
<30
34,800
438,000
2-Hexanone (MBK)
<4.0
<4.0
<8.3
<8.3
<8.3
<8.3
32
<8.3
<8.3
<8.3
<8.3
<8.3
209
2,630
Ethylbenzene
11
<4.4
5.3
<4.4
<4.4
<4.4
<4.4
1,500
940
<4.4
<4.4
<4.4
374
4,910
4-Ethyltoluene
<3.5
<3.5
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
25
<5.0
<5.0
<5.0
NS
NS
Toluene
61
3
20
14
32
13
17
98
37
19
33
12
34,800
438,000
Tetrachloroethene (PCE)
<6.9
<6.9
<6.9
<6.9
<6.9
190
30
65
140
<6.9
<6.9
3�00
278
3,500
1,3,5-Trimethyl benzene
6
<5.0
6.6
<5.0
<5.0
<5.0
<5.0
<5.0
20
<5.0
<5.0
<5.0
NS
NS
1,2,4-Trimethyl benzene
22
9
26
15
11
9.9
11
14
34
5.7
9
<10
48.7
613
Vinyl Chloride
3.6
<2.6
<2.6
31
<2.6
<2.6
<2.6
<2.6
<2.6
<2.6
<2.6
<2.6
55.9
2,790
m&p-Xylenes
39
14.0
25
11
18
8.8
12
3,100
3,600
13
14
<8.8
695
8,760
o-Xylene
17.0
1 6
11
T61
F82
5.0
7.6
1 11400
1,400
4.9
5.6
1 <4.0
695
8,760
Notes:
Concentrations are presented in micrograms per cubic meter (Ng/m3)
NS = No Standard
BOLD = Exceeds DWM Residential Vapor Intrusion Screeninq Concentrations
Underline = Exceeds DWM Non -Residential Vapor Intrusion Screeninq Concentrations
DWM = Division of Waste Management
Dup-605 = Duplicate of Sample SG-17

TABLE 3: SUMMARY OF SOIL GAS ANALYTICAL RESULTS -BUILDINGS 605-1, 605-13, 130, 2-2, 2-2 AND 505-12
Whitaker Park
Winston Salem, Forsyth County, North Carolina
ECS Project No. 49-4532
Parameter
ANALYTICAL RESULTS
Acceptable
Residential Vapor
Intrusion
Screening Levels
Acceptable Non -
Residential Vapor
Intrusion
Screening Levels
Location
605-1
605-13
130
2-1
2-2
605-12
Sample ID
SG-19
SG-20
SG-21
SG-22
SG-23
SG-24
Dup-2-11
SG-25
SG-26
SG-27
SG-28
Dup-605-12
SG-29
Date Sampled
7/6/2017
7/7/2017
Dichlorodifluoromethane (F12)
<5.0
<5.0
<5.0
<5.0
NA
51
11
30
160
16
69
130
97
695
8,760
Trichlorofluoromethane (F11)
9,700
9,200
37,000
68,000
NA
190
220
22
860
7.8
12
13
130
NS
NS
1,1,2-Trochlorotrifluoroethane (F1 13)
<7.7
7.7
<7.7
<7.7
NA
<7.7
<7.7
8.6
<7.i
<7.,
-7.7
<7.7
209,000
2,630,000
Benzene
<3.2
<3.2
<3.2
<3.2
NA
<3.2
<3.2
24
<3.2
<3.2
4.2
4.2
7.2
120
1,570
Carbon Disulfide
32
32
<6.3
<6.3
NA
<6.3
<6.3
<6.3
<6.:
<6.3
<6.3
<6.3
32
4,870
61,300
Chloroform
<4.9
<4.9
<4.9
<4.9
NA
<4.9
<4.9
<4.9
6.2
<4.9
<4.9
<4.9
40.7
533
Chloromethane
<2.1
<2.1
<2.1
<2.1
NA
<2.1
7.0
<2.1
<2
2.2
<2.1
2.5
<2.1
626
7,880
1,2-Dichloroethane
<4.1
<4.1
<4.1
<4.1
NA
<4.1
<4.1
9.0
<4.
<4,1
<4.1
<4.1
36
472
2-Butanone (MEK)
<3.0
95
<30
<30
NA
79
79
31
<30
39
<30
<30
<30
34,800
438,000
2-Hexanone (MBK)
<8.3
<8.3
<8.3
<8.3
NA
<8.3
<8.3
<8.3
<8.:
<8.3
<8.3
<8.3
14
209
2,630
Ethylbenzene
<4.4
<4.4
<4.4
<4.4
NA
<4.4
<4.4
35
<4.<
<4.4
<4.4
<4.4
<4.4
374
4,910
4-Ethyltoluene
<5.0
<5.0
�5.0
NA
<5.0
<5.0
8.4
<5.0
<5.0
<5.0
<5.0
<5.0
NS
NS
Toluene
77
24
3.8
NA
8.1
<3.8
330
8.3
6.1
7.2
19
11
34,800
438,000
Tetrachloroethene (PCE)
2,600
5 100
160
120
NA
<6.9
<6.9
<6.9
10
<b.,
-b.9
<6.9
17
278
3,500
Trichloroethene
<5.5
5.5
<D.-
<5.5
NA
<5.5
<5.5
<5.5
9.0
<5.5
<5.5
<5.5
<5.5
13.9
175
1,3,5-Trimethylbenzene
<5.0
<5.0
<5.0
<5.0
NA
<5.0
<5.0
9.2
<5.0
<5.0
<5.0
<5.0
<5.0
NS
NS
1,2,4-Trimethylbenzene
<10
21
<5.0
<5.0
NA
<5.0
<5.0
26
<5.0
<5.0
<5.0
<5.0
5.5
48.7
613
m&p-Xylenes
53
53
<8.8
<8.8
NA
<g,g
<8,8
110
<8.8
<8.8
14
12
695
8,760
o-Xylene
4.0
1.0
<4.0
<4.0
NA
<4.0
<4.0
48
<4.0
<4.
5.6
5.4
695
8,760
Notes:
Concentrations are presented in micrograms per cubic meter (pg/m3)
Na = NOT Analyzed Due to Equipment Failure
NS = No Standard
BOLD = Exceeds DWM Residential Vapor Intrusion Screening Concentrations
Underline = Exceeds DWM Non -Residential Vapor Intrusion Screening Concentrations
DWM = Division of Waste Management
Dup-2-11 = Duplicate of Sample SG-24
Dup-605-12 = Duplicate of Sample SG-28

TABLE 4: SUMMARY OF SOIL GAS ANALYTICAL RESULTS - BUILDINGS 605-7, 605-10, AND 630
WPDA, Inc.
Winston Salem, Forsyth County, North Carolina
ECS Project No. 49-4532
Parameter
ANALYTICAL RESULTS
Acceptable
Residential Vapor
Intrusion Screening
Levels
Acceptable Non -
Residential Vapor
Intrusion Screening
Levels
Location
605-7
605-10
630
Sample ID
SG-30
SG-31
SG-32
SG-33
Dup-630
SG-34
SG-35
Date Sampled
7/7/2017
7/12/2017
Dichlorodifluoromethane (F12)
<5.0
5.1
11
11,000
13,000
12,000
310
695
8,760
Trichlorofluoromethane (F11)
<5.6
<5.6
15
<5.6
13
<5.6
<5.6
NS
NS
Benzene
5.5
5.8
<3.2
<3.2
<3.2
<3.2
<3.2
120
1,570
Carbon Disulfide
19
8.9
<6.3
<6.3
<6.3
<6.3
<6.3
4,870
61,300
Chloromethane
<2.1
2.4
3.9
<2.1
<2.1
<2.1
<2.1
626
7,880
Toluene
5.7
11
14
32
17
36
<3.8
34,800
438,000
1,2,4-Trim ethyl benzene
6.7
<5.0
<5.0
<5.0
<5.0
<5.0
48.7
613
m&p-Xylenes
<8.8
<8.8
11
<8.8
<8.8
<8.8
<8.8
695
8,760
o-Xylene
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
695
8,760
Notes:
Concentrations are presented in micrograms per cubic meter (pg/m3)
NS = No Standard
BOLD = Exceeds DWM Residential Vapor Intrusion Screening Concentrations
Underline = Exceeds DWM Non -Residential Vapor Intrusion Screening Concentrations
DWM = Division of Waste Management
Dup 630 = Duplicate of Sample SG-33

TABLE 5: SUMMARY OF SOIL SAMPLE RESULTS
Whitaker Park
Winston Salem, Forsyth County, North Carolina
ECS Project No. 49.4532
Location
Northeast Warehouse Area
Fueling Area
Northwest Warehouse Area
Coal Pile
IHSB Unrestricted
Use Health Based
PSRG
IHSB
Industrial/Commercial
Health Based PSRG
Sample Identification
GP-1
GP-2
GP-3
Dup-1
GP-3A*
GP-3B*
GP-3A**
GP-3B**
GP-4
GP-5
GP-6
Dup-2
GP-7
GP-8
GP-9
GP-10
Dup-3
Sample Date
6/27/2017
9/13/2017
6/27/2017
Sample Depth (feet)
1.5
15
1.5
1.0
Pesticides/PCBs by EPA Methods 8081/8082
Aldrin
<0.002
<0.002
0.022
0.212
0.010
0.029
0.012
0.0094
<0.002
--
<0.002
<0.002
<0.002
0.039
0.18
gamma-BHC (Lindane)
<0.002
<0.002
<0.002
<0.002
<0.002
<0.002
<0.027
<0.027
<0.002
<0.002
0.010
<0.002
NS
NS
4,4'-DDD
<0.002
<0.002
<0.002
<0.002
0.005
0.008
<0.027
<0.027
0.002
<0.002
0.021
<0.002
2.30
9.60
4,4'-DDE
0.082
0.009
0.021
0.018
0.076
0.081
0.039
0.051
0.014
0.002
0.310
0.016
2.00
9.30
4,4'-DDT
0.045
0.026
0.040
0.040
0.080
0.111
0.015
0.0039 J
0.042
0.004
0.809
0.013
1.9
8.5
Endrin
<0.002
<0.002
<0.002
0.007
<0.002
<0.002
<0.027
<0.027
<0.002
<0.002
<0.002
<0.002
3.80
50
Heptachlor epoxide
<0.002
<0.002
<0.002
0.003
0.003
0.005
<0.027
<0.027
<0.002
<0.002
<0.002
<0.002
0.007
0.33
Heptachlor
<0.002
<0.002
<0.002
<0.002
NA
NA
0.00099 J
<0.027
<0.002
<0.002
<0.002
<0.002
0.13
0.63
cis -Chlordane
<0.002
<0.002
<0.002
<0.002
NA
NA
0.130
0.110
<0.002
<0.002
1 <0.002
<0.002
NS
NS
Chlorodane
<0.002
<0.002
<0.002
<0.002
0.147
0.161
0.390
0.410
<0.002
<0.002
<0.002
<0.002
1.7
7.7
trans-Chlorodane
<0.002
<0.002
<0.002
<0.002
NA
NA
0.059
0.057
<0.002
<0.002
<0.002
<0.002
NS
NS
Dieldrin
<0.002
<0.002
<0.002
<0.002
0.040
0.047
0.049
0.037
<0.002
<0.002
<0.002
<0.002
0.034
0.14
Endosulfan 1
<0.002
1 <0.002
1 <0.002
<0.002
<0.002
<0.027
0.0017 J
<0.002
<0.002
<0.002
<0.002
94
1,400
Endrin Ketone
<0.002
<0.002
<0.002
<0.002
<0.002
<0.027
0.0045
<0.002
10.002
10.002
<0.002
3.8
50
Herbicides by EPA 8151
All Target Compounds
<42
<42
<42
<42
<42
<42
<42
<42
VOCs by EPA 8260
1,1,1-Trichloroethane
--
--
0.0096
0.0071
SVOCs by EPA 8270
All Target Compounds
--
<0.33
<0.33
--
Metals
Barium
--
--
--
54.0
46.6
580
580
Cadmium
--
--
<0.124
<0.120
3.0
3.0
Chromium (III)
19.2
17.8
360,000
360,000
Chromium (VI)
<5.4
NA
3.8
3.8
Arsenic
5.72
5.42
5.8
5.8
Lead
16.9
17.6
270
270
Selenium
<1.24
<1.20
2.1
2.1
Silver
--
<1.24
<1.20
3.4
3.4
Mercury
10.095
0.087
1 1.0
1.0
Notes:
mg/kg = milligrams per kilogram = ppm (parts per million)
IHSB = Inactive Hazardous Sites Branch
PSRG = Preliminary Soil Remediation Goal
BOLD = Concentration Exceeds Unrestricted Use PSRG
UNDERLINE = Concentration Exceeds Industrial/Commercial PSRG
NA = Not Analyzed by this Method
Dup-1 = Duplicate of Sample GP-3
Dup-2 = Duplicate of Sample GP-6
Dup-3 = Duplicate of Sample GP-10
Analyzed by R&A Laboratory
"Analyzed by Prism Laboratory

TABLE 6: SUMMARY OF GROUNDWATER ANALYTICAL RESULTS
Whitaker Park
Winston Salem, Forsyth County, North Carolina
ECS Project No. 49-4532
Sample Identification
GW-1
NC2LGWQS
Sample Date
6/27/2017
Method 8260
Carbon Tetrachloride
8.0
0.3
Chloroform
0.6
70
1,1-Dichloroethane
1.0
6
1,1-Dichloroethene
5.2
350
1,1,1-Trichloroethane
58.7
200
Method 8270BNA
All Target Compounds
<10.0
--
Notes:
NC2LGWQS = North Carolina 2L Groundwater Quality Standard
pg/I = micrograms per liter = ppb (parts per billion)
BOLD = Concentration exceed NC2LGWQS
GW-1 was collected from the soil boring for GP-6

APPENDIX A

TM
SUB -SLAB SOIL GAS, SOIL, AND GROUNDWATER SAMPLING
WORK PLAN
WPDA, INC.
FORMER WHITAKER PARK RJ REYNOLDS INDUSTRIAL
PROPERTY
REYNOLDS BOULEVARD
WINSTON-SALEM, FORSYTH COUNTY
BROWNFIELDS PROJECT NUMBER 15031-11-34
ECS PROJECT NO. 49.4532
PREPARED FOR
WPDA, INC.
June 14, 2017

MEEMEMENI
ECS SOUTHEAST, LLP "Setting the Standard for Service"
�r Geotechnical • Construction Materials • Environmental • Facilities NCRegISIVedEngineenngcim F-'GT5
NC Regrsgered reaing,sis F,m C-sae
SC Reaf5l=Fed Rnq,neerina F1rrr J239
June 14, 2017
Mr Stephen R Berlin
Attorney for WPDA, Inc.
c/o Kilpatrick Townsend & Stockton LLP
1001 West Fourth Street
Winston Salem, North Carolina 27101
Reference Sub -Slab Soil Gas Soil and Groundwater Sampling Work Plan
WPDA, Inc.
Former Whitaker Park RJ Reynolds Industrial Property
Reynolds Boulevard
Winston-Salem Forsyth County. North Carolina
Brownfields Project Number 15031-11-34
ECS Project No. 49. 4532
Dear Mr Berlin
ECS Southeast. LLP (ECS) has prepared a work plan to collect sub -slab soil gas. soil. and
groundwater samples at the subject site This plan has been developed at the request of
the North Carolina Division of Waste Management (NCDWM) - Brownfields Group, and
has been prepared in general accordance with the NCDWM s Vapor Intrusion Guidance
document dated April 2014 and the Inactive Hazardous Sites Program Guidelines for
Assessment and Cleanup dated October 2015
ECS appreciates the opportunity to provide our environmental consulting services to you on
this project. If you have any questions concerning this report or this projectplease contact
us.
Sincerely
ECS SO 111317����
M
SE
f
oh I�. S IMP `r 61I-(jzo1-j
cipm
336-856- A
Jstewartl@ hmitedcom
John S. Lair. P G
Director of Environmental Services
Jlair@ecsltmted com
cc James Rudder. P G NCDWM - Brownfields Group
ECS Capitol Services, PLLC • ECS Florida. LLC • ECS Mid -Atlantic, LLC • ECS Midwest. LLC • ECS Southeast. LLP • ECS Texas. LLP
www.ecslimrted com

Sub -Slab Soil Gas, Soil, and Groundwater Sampling Work Plan
WPDA, Inc.
Former Whitaker Park RJ Reynolds Industrial Property
Reynolds Boulevard
Winston-Salem, Forsyth County, North Carolina
Brownfields Project Number 15031-11-34
ECS Project No. 49.4532
June 14, 2017
TABLE OF CONTENTS
1.0 PROJECT INFORMATION.......................................................................................2
2.0 PROPOSED DEVELOPMENT.............................................................................2
3.0 OBJECTIVE OF THE WORK PLAN.........................................................................2
4.0 SAMPLE LOCATIONS.............................................................................................3
5.0 SAMPLE COLLECTION PROCEDURES.................................................................5
FIGURES
Figure 1
Site Location Map
Figure 2
Site Map
Figure 3
Area 1 Sample Location Map
Figure 4
Area 2 Sample Location Map
Figure 5
Area 4 Sample Location Map

Sub -Slab Soil Gas, Soil, and Groundwater Sampling Work Plan
WPDA, Inc.
Former Whitaker Park RJ Reynolds Industrial Property
Reynolds Boulevard
Winston-Salem, Forsyth County, North Carolina
Brownfields Project Number 15031-11-34
ECS Project No. 49.4532
June 14, 2017
1.0 PROJECT INFORMATION
WPDA, Inc. recently acquired the RJ Reynolds Whitaker Park property located north of
downtown Winston-Salem, Forsyth County, North Carolina along Reynolds Boulevard and
Shorefair Drive (Figure 1 and 2). This property has been divided into four areas to denote
eligibility under the North Carolina Department of Environmental Quality (NCDEQ) Brownfields
Program. The NCDEQ Brownfields Group (NCBG) has determined that the eligibility status of
Areas 1, 2, and 4 are "active eligible", and Area 3 is "inactive eligible". For the purposes of
this work plan, only Areas 1, 2, and 4 are being investigated. On June 14, 2106, the NCBG
sent WPDA, Inc. a letter requiring additional environmental assessment in the three areas
and requested submittal of a work plan describing in detail the procedures and activities to
be used to accomplish the assessment. This work plan includes the proposed procedures and
activities to be used to accomplish the environmental assessment.
2.0 PROPOSED DEVELOPMENT
The recently acquired property is currently planned to be redeveloped with a combination of
commercial, light industrial, research facilities, and multi -family residential housing.
3.0 OBJECTIVE OF THE WORK PLAN
The objective of this work plan is to determine if past uses of Areas 1, 2 and 4 and known off -
site releases are creating concerns for the future use of Areas 1, 2 and 4. The specific locations
and types of analysis at each location area are summarized below. The soil gas, soil, and
groundwater sampling will be conducted in general accordance with the North Carolina Division
of Waste Management's (NCDWM) Vapor Intrusion Guidance (April 2014) and the NCDWM
Inactive Hazardous Site Program's Guidelines for Assessment and Cleanup (October 2015).
The proposed environmental assessment plan was discussed during a meeting with Mr. James
Rudder of the NCBG and is summarized in his above referenced letter of June 14, 2016.
Owner and Developer's Representative:
Mr. Stephen R. Berlin
Attorney for WPDA, Inc.
c/o Kilpatrick Townsend & Stockton, LLP
1001 West Fourth Street
Winston Salem, North Carolina 27101
[e-mail]
Site Environmental Representative:
Mr. John M. Stewart, P.G.
ECS Southeast, LLP
4811 Koger Boulevard
Greensboro, North Carolina 27407
336-856-7150
Jstewart1 @ecslimited.com
pa

Sub -Slab Soil Gas, Soil, and Groundwater Sampling Work Plan
WPDA, Inc.
Former Whitaker Park RJ Reynolds Industrial Property
Reynolds Boulevard
Winston-Salem, Forsyth County, North Carolina
Brownfields Project Number 15031-11-34
ECS Project No. 49.4532
June 14, 2017
Reporting
A report of the results of the sampling outlined in this work plan will be submitted to the
NCBG. If unidentified and unexpected conditions are encountered during the assessment,
WPDA, Inc. will be notified. The responsibility of notifying NCDWM and other external
parties lies solely with WPDA, Inc. and/or with ECS acting on their behalf.
The N C D E Q Brownfields Program (NCBP) contact i s:
James Rudder, P.G, Brownfields Project Manager
[e-mail]
NCDEQ, DWM, NC Brownfields Program
Phone: [phone]
Deviation from Approved Plan
This work plan is intended to be dynamic and to be adapted to specific and actual site
conditions. Accordingly, should such conditions warrant a change either by addition, deletion or
modification of a procedure, such may be accomplished with agreement between WPDA, Inc.'s
representative and ECS after consultation with, and subject to approval by the NCBP. Such
changes will comply with applicable local, State and Federal rules and regulations. A written
amendment shall be prepared and submitted to NCBP for approval (the use of e-mail
correspondence shall suffice for approval, followed by a hard copy or electronic copy provided
on Disk or similar media) prior to implementation. Amendments must have the approval of the
NCBP prior to implementation. Amendments must have the approval of the NCBP prior to
implementation of each amendment.
4.0 SAMPLE LOCATIONS
The areas to be sampled are summarized below and shown on Figures 3, 4, and 5.
Area 1
A. Building 601-1
1. Two sub -slab soil gas samples should be collected in the area of the former hazardous
waste storage area in Building 601-1.
2. Two additional sub -slab soil vapor samples should be collected beneath the former
maintenance shop within building 601-1.
B. Building 601-11
1. Six sub -slab soil gas samples should be collected beneath building 601-11.
2. One radon sample should be collected to be used for estimating the attenuation factor
from the sub -slab into indoor space.
3

Sub -Slab Soil Gas, Soil, and Groundwater Sampling Work Plan
WPDA, Inc.
Former Whitaker Park RJ Reynolds Industrial Property
Reynolds Boulevard
Winston-Salem, Forsyth County, North Carolina
Brownfields Project Number 15031-11-34
ECS Project No. 49.4532
June 14, 2017
C. Northeast Corner of Building 601-1 will be assessed to determine the impact to Area 1
from the former RJR Archer property using a soil gas or sub -slab soil gas sample.
D. The north -central off -site portion of Area 1 will be assessed by collection of one sub -
slab soil gas sample north -central of building 601-1.
Area II
A. Buildings 2-1 and 2-2
1. Two sub -slab soil gas samples will be collected beneath building 2-1.
2. Two sub -slab soil gas samples will be collected beneath building 2-2.
B. Former Fueling Station located northwest of building 2-1
1. Two surface soil samples will be collected. One soil sample will be collected from each
boring, based on screening results. Each soil sample will be laboratory -analyzed using
EPA Methods 8260B and 8270D.
2. One groundwater sample will be collected and laboratory -analyzed using EPA Methods
8260B and 8270D.
C. Former Coal Pile northeast of building 2-1
1. Collect one soil sample across the 0 - 1 foot depth interval in two locations. The soil
samples will be laboratory -analyzed for the RCRA metals plus hexavalent chromium.
D. Other existing buildings
1. Building 605-12 collect two sub -slab soil gas samples
2. Building 130 collect one sub -slab soil gas sample
3. Building 605-8 collect one sub -slab soil gas sample
4. Building 605-13 collect one sub -slab soil gas sample
5. Building 605-1 collect two sub -slab soil gas samples
6. Building 605-11 collect two sub -slab soil gas samples
7. Building 605-10 collect one sub -slab soil gas sample
8. Building 605-7 collect one sub -slab soil gas sample
9. Northwest Former Warehouse Area
a. Collect three soil gas samples along the western property line
b. Collect one soil gas sample within the former building concrete pad area
c. Collect three composite soil samples within the former warehouse areas. Each
composite sample will be composed of four different aliquots collected from the 0 - 1.5
feet depth intervals to produce the composited sample. Each composite soil sample will
be laboratory -analyzed for herbicides, pesticides, and fungicides.
10. Northeast Former Warehouse Area
1. Collect four composite soil samples within the former warehouse areas. Each composite
sample will be composed of four different aliquots collected from the 0 - 1.5 feet depth
intervals to produce the composited sample. Each composite soil sample will be
laboratory -analyzed for herbicides, pesticides, and fungicides.
4

Sub -Slab Soil Gas, Soil, and Groundwater Sampling Work Plan
WPDA, Inc.
Former Whitaker Park RJ Reynolds Industrial Property
Reynolds Boulevard
Winston-Salem, Forsyth County, North Carolina
Brownfields Project Number 15031-11-34
ECS Project No. 49.4532
June 14, 2017
Area IV Laboratory Building
A. Collect three sub -slab soil gas samples equally spaced.
B. Collect one soil gas sample adjacent to the former Hazardous Waste Storage building at
an approximate depth interval of 5 to 6 feet below grade.
5.0 SAMPLE COLLECTION PROCEDURES
5.1 Soil Gas Samples
Probe Placement and Sample Collection
Temporary sub -slab vapor probes will be placed by drilling a hole through the floor slab at each
location. Prior to drilling the probe holes, the floor will be inspected for cracks, joints, and other
floor penetrations. The holes will be placed at least three feet from these penetrations, if
possible. Floor conditions will be noted and photographed.
The holes will be 3/8 - inch in diameter and will extend through the slab and into the sub -grade
material approximately two to three inches. A soil vapor probe will then be placed in the holes.
Each probe will be constructed 1/4—inch Nylaflow tubing with a porous air stone connect to the
end of the tubing. The tubing will be sealed at the floor surface with bentonite powder hydrated
with distilled water.
A syringe will be connected to the tubing to purge the tubing. Three volumes of the tubing will
be purged prior to sample collection. Following purging, the tubing will be connected to a 400
ml Summa canister, which will be used to collect the sample. The Summa canister will be fitted
with a flow regulator. The flow rate for both purging and sample collection will be 0.2 liters per
minute. The pressure in the canister will be recorded before and after sample collection. Other
parameters that will be measured include ambient temperature before and after sample
collection and recent weather conditions. Prior to sample collection a shut-in test will be
conducted to assess for leaks in the fittings and regulator.
The probes will be removed and the holes filled cement grout following sample collection.
Exterior Soil Gas Samples
The exterior soil gas sample will be collected by driving a direct push sampler to a depth of 5 to
7 feet below the ground surface. Once the boring has reached termination depth, the Nylfow
tubing and air stone will be lowered into the boring. Approximately one foot of clean coarse
sand will placed around the air stone. A seal consisting of three feet of bentonite powder will be
hydrated with distilled water. The soil gas probe will be allowed to stabilize for four hours before
the soil gas sample is collected. Soil gas sample will be collected in similar manner as
described above.
5

Sub -Slab Soil Gas, Soil, and Groundwater Sampling Work Plan
WPDA, Inc.
Former Whitaker Park RJ Reynolds Industrial Property
Reynolds Boulevard
Winston-Salem, Forsyth County, North Carolina
Brownfields Project Number 15031-11-34
ECS Project No. 49.4532
June 14, 2017
Leak Detection
Prior to collecting the sub -slab or exterior soil gas samples, laboratory grade helium gas will be
used as a quality assurance control measure to confirm the integrity of the probe seal. A plastic
cylinder will be placed and sealed over the sampling point and purged with laboratory grade
helium. The probe point tubing and tracer gas tubing will be placed through the cylinder wall via
rubber grommets. The cylinder will be placed on a 4-inch rubber gasket and held securely to
the slab with a heavy weight. During the purging stage, the cylinder will be flooded with
laboratory grade helium via the hose placed through the cylinder wall. A Model MGD-2002
Multi -Gas Leak detector or similar will be connected to the probe tube and the air stream being
purged will be measured for helium. A helium concentration of less than five percent helium will
be considered acceptable. If concentrations greater than five percent helium are measured, the
probe tube seal will be reseated and the leak detection process will be repeated.
Sample Analysis
Following sample collection, the canisters will be labeled and maintained under chain -of -custody
until delivered to H&P Mobile Geochemistry Inc. in Carlsbad, California. A Chain -of -Custody
document will be utilized throughout the collection and transportation of the samples. Each
sample will be analyzed for VOCs using EPA Method TO-15. The Brownfields Program will
require that each compound included within the TO-15 analysis be reported (method detection
limit and preferably method reporting limit) at a concentration at least as low as the compound's
current applicable standard (October 2016). If for some reason, a compound is detected below
the laboratory's reporting limit (assuming no dilution), a second sample will be collected using a
1,000 ml Summa canister and reanalyzed using TO-15.
A radon attenuation sample will be collected in Building 601-11. While the probe is still in place,
a dedicated syringe will be used to draw a sample of soil gas and then placed in a Tedlar bag.
Immediately following the collection of the sub -slab soil gas sample a dedicated syringe will be
used to collect a sample of the ambient air above the probe location. The air sample will placed
in a separate Tedlar bag. The bags will be labeled and shipped under chain of custody to the
laboratory to be analyzed for radon.
Quality Control
Five duplicate samples will be collected and analyzed for the same compounds using EPA
Method TO-15.
5.2 Soil Samples
5.2.1 Former Fueling Station
ECS will contract with a North Carolina licensed drilling contractor to drill two soil borings using
direct push technology to a depth of 15 feet below ground surface (bgs). Soil samples will be
collected continuously starting at the surface to boring termination. The soil samples will be
classified in the field by an ECS professional and screened for volatile organic vapors using a
X

Sub -Slab Soil Gas, Soil, and Groundwater Sampling Work Plan
WPDA, Inc.
Former Whitaker Park RJ Reynolds Industrial Property
Reynolds Boulevard
Winston-Salem, Forsyth County, North Carolina
Brownfields Project Number 15031-11-34
ECS Project No. 49.4532
June 14, 2017
FID/PID. The soil sample from each boring with the highest FID/PID reading will be selected for
analysis. If no organic vapors are detected or they are all the same, then the sample collected
from a depth of 0.5 to 1 foot bgs will be collected for analysis. Each sample will be packaged and
submitted to a North Carolina certified laboratory to be analyzed for volatile and semi -volatile
organic compounds (VOCs and SVOCs) using EPA Method 8260 and 8270, respectively. A
duplicate sample will be collected and analyzed for the same constituents.
One of the borings will be deepened to five feet below the water table. A discrete groundwater
sample will be collected using a peristaltic pump and placed directly into the laboratory supplied
bottles. The sample will be packaged and submitted to a North Carolina certified laboratory to be
analyzed for VOCs and SVOCs using EPA Method 8260 and 8270, respectively.
Once the samples are collected, the drilling contractor will properly abandon the borings.
5.2.2 Former Coal Pile Northeast of building 2-1
One soil sample will be collected from the 0 — 1.0 foot depth interval in two locations. The
samples will be collected using a decontaminated hand auger. The soil from the 0 to 1.0 foot
interval will be placed in a zip -lock bag and thoroughly mixed. A portion of each sample will be
packaged and submitted to a North Carolina certified laboratory to be analyzed for the total RCRA
metals plus hexavalent chromium. A duplicate sample will be collected and analyzed for the
same constituents.
5.2.3 Northwest and Northeast Former Warehouse Areas
Seven composite soil samples will be collected within the former warehouse areas. Each
composite sample will be composed of four different aliquots collected from the 0 - 1.5 feet
depth intervals to produce the composited sample. The four aliquots of soil will be placed in a
zip -lock bag and thoroughly mixed. A portion of each sample will be packaged and submitted to
a North Carolina certified laboratory to be analyzed for herbicides, pesticides, and fungicides
using EPA Methods 8151 and 8081, respectively. A duplicate sample will be collected and
analyzed for the same constituents.
Report
ECS will prepare a written report documenting the field activities, sampling procedures, sample
locations, laboratory procedures and results, and conclusions.
7

FIGURES

A
Mal
A Fghh
FIN
11
� � -P- - RJR

r1
F
, va
i + III �• � f
V" di
may• � 1 f r
. 1*
rt
601-11
r
601-1
SOURCE:
a
GOOGLE EARTH AERIAL PHOTOGRAPH,
DATED 2015
= 330'
1'
IF-
I
,go
EXPLANATION
APPROXIMATE SITE BOUNDARY
r+� 0 SOIL GAS SAMPLE
0 SOIL GAS/RADON SAMPLE
601- BUILDING NUMBER 0.0
I
N
FIGURE 3
�E E
'AREA 1 SAMPLE LOCATION MAP
RJR WHITAKER PARK
REYNOLDS BOULEVARD
WINSTON-SALEM, FORSYTH COUNTY, INC
�J
ECS PROJECT NO. 49-4532
TM

E
i
I
' r 49
IL
r I
1
J
NW WAREHOUSE AREA
a4
�da�Lti,
1
1
)5-12 - 605-1\0,
♦ 130 ♦ `-
i • IW605-7 `4 w**�-
605-8
605-13 '.
605-1 r

r
t
SOURCE:
GOOGLE EARTH AERIAL PHOTOGRAPH,
DATED 2015
= 420'
77 .
IR� 4:
*`r
r
EXPLANATION
- APPROXIMATE SITE BOUNDARY
SOIL GAS SAMPLE
N
FIGURE 5
�E E
AREA 4 SAMPLE LOCATION MAP
RJR WHITAKER PARK
I REYNOLDS BOULEVARD
�.� WINSTON-SALEM, FORSYTH COUNTY, INC
TM
ECS PROJECT NO. 49-4532

APPENDIX B

From:
Rudder, James
To:
Berlin, Steve
Cc:
John M. Stewart, P.G.; Brian E. Maas; Nicholson, Bruce; Eckard, Sharon
Subject:
RE: WPDA BROWNFIELDS PROJECT No. 15031-11-34
Date:
Wednesday, June 14, 2017 2:09:49 PM
Attachments:
imaae003.Dna
image004.jgg
Steve,
Please consider this email written approval of the "Sub -Slab Soil Gas, Soil, and Groundwater
Sampling Work Plan, WPDA, Inc., Former Whitaker Park RJ Reynolds Industrial Property..." dated
June 14, 2017. We look forward to receiving the assessment results and laboratory reports as they
become available, and the written report when it becomes available.
Regards,
Jim
James Rudder, P.G.
Project Manager
Division of Waste Management - Brownfields
INC Department of Environmental Quality
1646 Mail Service Center
Raleigh, INC 27699-1646
{919} 707-8381 - Direct Line & Fax
U
Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to
third parties unless the content is exempt by statute or other regulation.
From: Berlin, Steve [mailto:[e-mail]]
Sent: Wednesday, June 14, 2017 12:03 PM
To: Rudder, James <[e-mail]>
Cc: [e-mail]; [e-mail]
Subject: WPDA BROWNFIELDS PROJECT NO. 15031-11-34
Jim,
The attached June 14, 2017 SUB -SLAB SOIL GAS, SOIL, AND GROUNDWATER SAMPLING WORK
PLAN has been revised in accordance with your discussions with John Stewart of ECS Southeast, LLP

(ECS).
ECS will be able to mobilize expeditiously upon the approval of the Work Plan. Thank you for your
attention to this matter. We look forward to your response.
Best regards.
Steve
Steve Berlin
Kilpatrick Townsend & Stockton LLP
1001 West Fourth Street I Winston-Salem, NC 27101-2400
office 336 607 7304 1 cell 336 682 4574 1 fax [phone]
sberlin(@kilpatricktownsend.com I My Profile I vCard
Confidentiality Notice:
This communication constitutes an electronic communication within the meaning of the Electronic Communications Privacy Act, 18
U.S.C. Section 2510, and its disclosure is strictly limited to the recipient intended by the sender of this message. This transmission, and
any attachments, may contain confidential attorney -client privileged information and attorney work product. If you are not the intended
recipient, any disclosure, copying, distribution or use of any of the information contained in or attached to this transmission is STRICTLY
PROHIBITED. Please contact us immediately by return e-mail or at 404 815 6500, and destroy the original transmission and its
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attachments) is not intended or written to be used, and cannot be used, for the purpose of (i) avoiding penalties under the Internal
Revenue Code or (ii) promoting, marketing or recommending to another party any transaction or matter addressed herein.

APPENDIX C

Photograph 1: Ground Floor of Building 601-11
Photograph 2: Soil Gas Sampling Probe Installed
PHOTOGRAPH LOG
WHITAKER PARK
REYNOLDS BOULEVARD
WINSTON SALEM, FORSYTH COUNTY, NORTH CAROLINA
ECS PROJECT NO. 49-4532

Photograph 3: Helium Leak Test
Photograph 4: Shut In Test (Extra hole failed to penetrate slab)
PHOTOGRAPH LOG
WHITAKER PARK
REYNOLDS BOULEVARD
WINSTON SALEM, FORSYTH COUNTY, NORTH CAROLINA
ECS PROJECT NO. 49-4532

mow:
Photograph 5: Building 601-1 Looking South -Southwest
Photograph 6 : Sample SG-7/Dup-601 Location
PHOTOGRAPH LOG
WHITAKER PARK
REYNOLDS BOULEVARD
WINSTON SALEM, FORSYTH COUNTY, NORTH CAROLINA
ECS PROJECT NO. 49-4532

:3.
Photograph 7: Geoprobe Soil Boring
Photograph 8: Area 2, Northwest Warehouse Area Looking Southwest
PHOTOGRAPH LOG
WHITAKER PARK
REYNOLDS BOULEVARD
WINSTON SALEM, FORSYTH COUNTY, NORTH CAROLINA
ECS PROJECT NO. 49-4532

Photograph 9: Exterior Helium Leak Test
Photograph 10: Collection of Exterior Soil Gas Sample
PHOTOGRAPH LOG
WHITAKER PARK
REYNOLDS BOULEVARD
WINSTON SALEM, FORSYTH COUNTY, NORTH CAROLINA
ECS PROJECT NO. 49-4532

APPENDIX D

H&P Mobile
Geochemistry Inc.
2470Impala Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast, LLP- Greensboro Project- ECS062917-13
4811 Koger Blvd Project Number Whitaker Park I Winston Salem Reported:
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallier 10-Jul-17 15:01
ANALYTICAL REPORT FOR SAMPLES
Sample ID
Laboratory ID Watrix
Date Sampled
Date Received
SG-1
E706I10-01 Vapor
26-Jun-17
29-Jun-17
SG-2
E706110-02 Vapor
26-Jun-17
29-Jun-17
SG-3
E706110-03 Vapor
26-Jun-17
29-Jun-17
SG-4
E706110-04 Vapor
26-Jun-17
29-Jun-17
SG-5
E706110-05 Vapor
26-Jun-17
29•Jun-17
SG-6
E706110-06 Vapor
26•Jim-17
29-Jun-17
SG-7
E706111-01
Vapor
27-Jun-17
29-Jun-17
SG-8
E706111-02
Vapor
27-Jun-17
29-Jun-17
SG-9
E706111-03
Vapor
27-Jun-17
29-Jun-17
SG-10
E706111-04
Vapor
27-Jun•17
29-Jun-17
SG - II
E706111-05
Vapor
27-Jun-17
29-Jun-17
SG- 12
1706111-06
Vapor
27-Jun-17
29-Jun-17
DU P-601
E706111-07
Vapor
27-Jun-17
29-Jun-17
DU P-605
E706111-08
Vapor
27-Jun-17
29-Jun-17
Page 2 of 33

H&P Mobile
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760-804-9678 Phone
760-804-9159 Fax
ECS Southeast, I,I-P- Greensboro Project: FCS071317-11
4811 Koger Blvd. Project Number: Whitaker Park Reported
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallier 26-Jul-17 13 11
ANALYTICAL REPORT FOR SAMPLES
Sample ID
Laboratory ID Matrix
Date Sampled
Date Received
SG-13
E707053-01 Vapof
05-Jul-17
13-Jul-17
SG-14
E707W3-02 Vapor
05-Jul-17
13-Jul-17
SG-15
E707053-03 Vapor
05-Jul-17
13-Jul-17
SG-16
E707053-04 Vapor
05-Jul-17
13-Jul-17
SG-17
E.707053-05 Vapor
06-Jul-17
13-Jul-17
SG-18
E707053-06
Vapor
06-Jul-17
13-Jul-17
SG-19
E707053-07
Vapor
06-Jul-17
13-Jul-17
SG-24
E,707053-08
Vapor
06-Jul-17
13-Jul-17
SG-2J
E707053-09
Vapor
06-Jul-17
13-Jul-17
SG-22
E707053-10
Vapor
06-Jul-17
13-Jul-17
Dup-605
E707053-12
Vapor
06-Jul-17
13-Jul-17
Due to elevated analyte concentrations, samples SG-21 and SG-22 were analyzed using H&P 8260SV rather than EPA Method TO-15.
The following EPA Method TO-15 analytes are not reported by H&P 8260SV:
Diehlorodifluoromethane
4-Ethyltoluene
Page 2 of 30

H&P Mobile
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ECS Southeast, UP- Greensboro Project: ECS071717-16
4811 Koger Blvd Project Number: Whitaker Park Reported.
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallier 26-Jul-17 14:01
ANALYTICAI. REPORT FOR SAMPLES
Sample ID
Laboratory ID Matrix
Date Sampled
Date Received
SG-24
E707065-01 Vapor
07-Jul•17
17-Jul-17
SG-25
E707065-02 Vapor
07-Jul-17
17-Jul-17
SG-26
E707065-03 Vapor
07-Jul-17
17-Jul-0
SG-27
E707065-04 Vapor
07-Jul-17
17-Jul-17
SG-28
E707065.05 Vapor
07-Jul-17
17-Jul-17
SG-29
E707065-06 Vapor
07-Jul-11
17-Jul-17
SG-30
E707065-07 Vapor
07-Jul-17
17-Jul-17
SG-31
E707065-08 Vapor
07-Jul-17
17-Jul-17
DUP2-1
E707065-09
Vapor
07-Jul-17
17-Jul-17
DUP605-12
E707065-10
Vapor
07-Jul-17
17-Jul-17
SG-32
E707065-1i
Vapor
12-Jul-17
17-Jul-17
SG-33
E707065-12
Vapor
J2-Jul-17
17-Jul-17
$G-34
E707065-13
Vapor
12-Jul-17
17-Jul-17
SG-35
E707065-14
Vapor
12-Jul-17
17-Jul-II
DUP630
E707065-15
Vapor
12-Jul-17
17-Jul-17
Page 2 of 34

H&P Mobile
Geochemistry Inc.
2470Impala Drive
Carlsbad, CA 92010
760-804-9-678 Phone
760-804-9159 Fax
ECS Southeast LLP - Greensboro Project: ECS062917-13
4811 Koger Blvd. Project Number: Whitaker Park / Winston Salem Reported
Greensboro, NC 27407 Project Manager: Mr Randy Cavallier 10-Jul-17 15.01
DETECTION'S SUMMARY
Sample ID: SG-1
Laboratory ID:
E706110-01
Reporting
Analyte
Result
Limit
Units
Method Notes
Dichlorodifluoromethane(F12)
6.8
5U
ugm3
EPA TO-15
Trichlorofluoromethane (Fl 1)
13
5.6
u8an3
EPATO-15
Toluene
13
3.8
ugim3
I:P,A ri.t-I k
CdLrlhetimme
8.5
4.4
ugim3
I.[rh 11 1.-15
m,p-Xylene
44
8.8
ugm3
EPA TO- l5
o-Xylene
18
4.4
ugim3
EPA TO- L
4-Ethyltoluene
5.1
51,
ugm3
EPA'r0-15
1,3,5-Trimethylbenzene
8.1
' u
ugim3
EPA TO-15
1,2,4-Trimethylbenzene
ugim3
1 PA I'D.Ii
Sample ID: SG-2
Laboratory ID:
E706110-02
Reporting
Analyte
Result
Limit
Units
Method Notes
Dichlorodifluoromethane (F12)
8.8
i {I
ug,m3
EPA i'0-15
Carbon disulfide
is
§ s
ugim3
ERA TO- 15
2.Butanone(ME K)
3U
iU
ugim3
FPA1'0-15
TOlwnr
7,tr
18
ugim3
EPA TO-15
Tetrachloroethene
24
111
ugim3
L 1S\ III I f
m,p-Xylene
rll
8.8
ugim3
EPA TO-15
o-Xylene
5.2
4A
ug.'1113
ERA TO-15
1,2,44'rimethylbenzene
16
Su
ugm3
ERA "10-15
Sample ID: SG-3
Laboratory ID:
E706110-03
Reporting
Analyte
Result
Limit
Units
Method Notes
Dichlorodifluoromethane(F12)
6.9
341
ugnn3
EPA"FO-15
Carbon disulfide
47
I0
ug.,m3
EPA TO-15
Lk�me
6.1
3..'
ug,m3
EPA TO-15
Toloeme
Ethylbenzene
9.9
4A
ug-m3
EPA TO- 15
m,p-Xylene
42
88
ugm3
EPA TO-15
o-Xyleue
18
4.4
ugim3
EPA 1'0-15
4-Ethyltoluene
5.7
ill
ugm3
FP.A To -I i
1,3,5-Trimethylbenzene
6.9
5 U
ug m3
EPA TO-15
1,2,4-Trimethylbenzene
N
a
ugim3
EPATO-Is
Page 3 of 33

H&P Mobile
Geochemistry Inc.
2470Impala Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast. LIT- Greensboro Project: ECS062917-13
4811 Koger Blvd. Project Number: Whitaker Park 1 Winston Salem Reported'
Greensboro, NC 27407 Project Manager: Mr Randy Cavallier 10-Jul-17 15-UI
Sample ID. SG-4
Laboratory ID
E706110-04
Reporting
Analyte
Rrsuh
Limit
Units
Method Notes
Dichlorodifluoromethane (F12)
4.1
i d1
ug, m3
EPA TO-15
Toluene
}_q
S 8
ugrm3
FPA TO-I5
Tetrachloroethene
39
6.9
11Km3
I r',% rei I i
o-Xylene
i 9
4A
ugrm3
EPA TO-15
1,24-Trimethylbenzene
13
i41
ugm3
EPA TO-15
Sample ID: SG-5
Laboratory ID:
E706110-05
Reporting
Analyte
Result
Limit
Units
Method Notes
Dichlorodifluoromethane (F12)
8.2
5.0
ug m3
EPA TO-15
Trichlorofluoromethane(Fl1)
100
%n
ugrm3
EPATO- 15
Carbon disulfide
17
i• t
ugim3
EPATO-15
Toluene
20
1 K
ug m3
EPATO-15
Tetracbloroethene
23
01A
ugrm3
EPA TO.15
m,p-Xylene
17
R R
ugrm3
EPA TO-15
o-Xylene
7.9
4A
ugrm3
ERA TO- 15
1,2,4-Frimethylbenzene
15
7q
ughn3
EPA TO-15
Sample ID: SG-6
Laboratory ID:
E706110-06
Reporting
Analyte
Result
Limit
Units
Method Notes
Dichlorodifluoromethane (F12)
73
S rn
ug/m3
EPATO-15
Trichlorofluoromethane(Fl1)
1400
sti
uggm3
EPA10-15
Carbon disulfide
17
h 1
ugim3
ERA TO-15
Benzene
3.9
:
ugan3
EPATO- 15
Toluene
IJ
is
ug/m3
EPA TO- 15
Tetrachloroethene
R-5
6.9
ug m3
EPA FO-15
m,p-Xylene
1'
R R
ugrm3
EPA 10-I5
o-Xylene
9.5
1 #
im in,
EPA TO-15
1,3,5-Trimethylbenzene
5.6
50
ug, m3
EPA 10-15
1,2,4-Trimethyl benzene
22
,.0
ug m3
EPA 10-15
Sample ID SG-7
Laboratory ID
E706111-01
Reporting
Analyte
Rr�ult
Limit
Units
Method Notes
Chloromethane
20
7 1
ug m3
EPA TO.15
Benzene
17
3.2
ugrm3
EPA TO.15
Toluene
13
3.8
ug7m3
EPA TO-15
m,p-Xylene
13
k.8
ug/m3
EPA TO-15
Page 4 of 33

H&P Mobile
Geochemistry Inc.
2470Impala Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast, LLP - Greensboro Project: ECS062917-13
4811 Koger Blvd Project Number: Whitaker Park / Winston Salem Reported:
Greensboro, NC 27407 Project Manager: Mr_ Randy Cavallier 10-Jul-17 15 01
Sample ID: SG-7 Laboratory ID: E706111-01
Reporting
Analyte Result Limit I'nux Method Notes
o-Xylene 7.9 4.4 4JWm3 EPA TO-15
1,2,4-1'rimethylbenzene 16 ' 1'up..ml EPA TO- 15
Sample ID SG-8 Laboratory ID E706111-02
Reporting
Analyte
Result
Limit
Units
Method
Chloromethaue
12
2.1
ug,/m3
EPA FO-15
Vinyl chloride
9-41
2.6
ugim3
F.1' h It, 1
Trichlorofluoro methane (F11)
280
5.6
ugim3
EPA To- I5
Methylene chloride (Dichloromethane)
4.5
L 1
ug7m3
EPA-1'0-15
Carbon disulfide
32
� I
ug/m3
ERA "FO-15
cis- 1,2-Dichloroethene
5.4
4 0
ug; m3
EPA TO-15
t h6nlohinq
11
4.9
ug/m3
EPATO- I5
Benzene
19
i 2
ug-tn3
F P.; I to-1 }
Trichloroetheue
12
sc
ugm3
ERA TO- 15
l w4ow
34
3.8
ugm3
EPA TO-I5
frtruddnnwtwrar
.A
n'l
ugim3
EP.4l'O.15
Ethylbenzene
5,n
T4
ugim3
E R'% T' + I {
m,p-Xylene
21
8.3
ug/m3
EPA TO- 15
o-Xylene
12
4.4
❑g:m3
ERA TO-15
1,3,5-Tri methyl benzene
6.4
14
ugim3
EPA "1-0-15
1,2,4-Trimethylbenzene
25
1fl
ugim3
EPATO- IS
Sample ID: SG-9
Laboratory ID E706111-03
Reporting
Analyte
Result
Limit
Units
Method
Chloromethane
49
.' 1
ugim3
EPA TO-15
Vinyl chloride
3,15
.' t,
ugim3
FRA TO-15
Chlon101haee
15
MD
ug/m3
EPATO-15
Ik-mtemr
13
3.2
ugm3
I;
141lurnr
bq
t 6
ug;m3
EPATO-15
Ethylbenzene
11
4.4
ugm3
ERA TO-15
m,p-Xylene
]9
8.8
uu m3
ERA "FO-15
o-Xylene
17
4.4
ugm3
ERA TO- 15
4-Ethyltoluene
5.4
a 11
ug/m3
F,PA1'O-15
1,3,5-'1'rimethvlbenzene
fiA
s ri
uam3
EPA 1'0-15
1,2,4-Trimethylbenzene
22
.i 11
ugm3
EPA TO-16
Notes
Notes
Page 5 of 33

H&P Mobile
Geochemistry Inc.
24704mpala Drive
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760-804-9678 Phone
760-804-9159 Fax
ECS Southeast, LLP- Greensboro Project: ECS062917-13
4811 Koger Blvd Project Number Whitaker Park 1 Winston Salem Reported:
Greensboro, NC 27407 Project Manager Mr. Randy Cavallier 10-Jul-17 15:OI
Sample ID: SG-10
Laboratory ID:
E706111-04
Reporting
Analyte
Result
Limit
Units
Method
Notes
Chloromethane
40
2.1
ug,m3
EPA TO- I5
Chloroform
6„ 6
49
ug,m3
EPA TO-I5
Ii�uarne
4.7
3.2
ug/m3
EPATO-I5
lialurwr
20
3.8
ugim3
E n: I.I.) I }
Ethylbenzene
i,1
4.4
ugm3
EPATO-I5
m,p-Xylene
M
8.8
ugim3
EPA-10-15
o-Xylene
11
44
ugim3
EPA TO-15
1,3,5-Trimethylbenzene
L&
511
ug,nO
EPA TO- I5
1,2,4-Trimethylbenzene
id
k 11
ug m3
Fp} I0-1+
Sample ID. SG-11
Laboratory Ill:
E706111-05
Reporting
Analyte
Result
Limit
Units
Method
Notes
Chloromethaue
2.5
2.1
ugim3
EPA TO-15
Vinyl chloride
3.1
2.6
ug/m3
I r' 4 I ri-1 i
11•euiE"
&I
I -
ugim3
EPA -CO-15
Toluene
14
{ K
uem3
EPA TO- I5
m,p-Xylene
I I
R x
ug/m3
EPA TO- I S
o-Xylene
A.J
TA
ug; m3
I.Ikk 111.17
1,24-Trimethylbenzene
15
It
ug,uO
IH-1IIJ-l}
Sample ID SG-12
Laboratory ID:
E706111-06
Reporting
Analyte
1,-9411
Limit
Units
Method
Notes
Chloromethane
4.2
2.1
ug-m3
ERA TO-15
ICCNrhllr
i,Y
1:
ugim3
rPA_(TFhT`+
Nlurum
32
3.3
ugim3
ETA 1 -615
m,p-Xylene
IS
XA
ug/m3
F-PATOA.i
o-Xylene
8.!
4.4
ug/m3
EPA TO-I5
1,2,4-Trimethylbenzene
II
i n
ugnn3
EPATO- 11
Sample ID DUP-601
Laboratory ID:
E706111-07
Reporting
Analvie
R'.iult
Limit
Units
Method
Notes
Chloromethane
25
2.1
ug/m3
t:PA"CO-IS
Hs'n/tilf
21
t :
ug/m3
EPA 1'0-15
Toluene
4.8
3.8
ug!m3
EPATO- I5
o-Xylene
5.4
4.4
ug;m3
r j'.4 ro-P;
1,2,4-Trimethylbenzene
11
5 0
ug/m3
EPA 10-15
Page 6 of 33

H&P Mobile
Geochemistry Inc.
ECS Southeast, LLP - Greensboro
4811 Koger Blvd
Greensboro, NC 27407
Project: ECS062917-13
Project Number: Whitaker Park / Winston Salem
Project Manager: Mr. Randy Cavallier
2470Impala Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fax
Reported:
1 O-Jul-17 1 5:01
Sample ID DUP-605
Laboratory ID
E706111-08
Reporting
Analyte
Result
Limit
Units
Method Notes
i IJnnFnirlhnnr
33
2.1
ugim3
ERA -1'0-15
{'141ur4rrhanr
jh
8+i
ugim3
ERA -I'O-IS
Carbon disulfide
12
a. 3
ug/m3
EPA TO -I 5
Benzene
14
+-'
ug/m3
EPA TO-15
Toluene
33
1 K
ugim3
EPA -1'0-15
m,p-Xylene
14
8k
11gim3
EPA TO-15
o-Xylene
5.6
4A
ag/m3
EPA TO- 15
1,2,4-Trimethylbenzene
9.6
5 41
ug/m3
ERA TO- I5
Page 7 of 33

H&P Mobile
Geochemistry Inc.
24701mpala Drive
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760-804-9678 Phone
760-804-9159 Fax
ECS Southeast. LLP- Greensboro Project: ECS071317-li
4811 Koger Blvd. Project Number Whitaker Park Reported:
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallier 26-Jul-17 13:11
DETECTIONS SUMMARY
Sample ID: SG-13
Laboratory ID
E707053-01
Reporting
Analyte
Result
Limit
Units
Method Motes
Dichlorodifluoromethane (F12)
-17
i It
ugim3
EPA TO-15
Chloromethane
2.7
2.1
ugim3
ERA TO- 15
Trichlorofluoromethane (Fit)
210
ug/m3
l.r'.4 It 1-11
Carbon disulfide
14
n '
ug/m3
EPA TO-15
Benzene
6.3
3.2
ug/m3
EPA TO-15
Toluene
IS
I K
ug/m3
ERA TO- 15
Tetrachloroethene
1411
6.9
ugim3
FPATO-15
m,p-Xylene
8.8
88
ugim3
FiP4 I t-I 3
o-Xylene
5.0
44
ug/m3
FPA 1'0-13
1,2,4-Trimethylbenzene
9.9
511
ug tn3
EPATO-15
Sample ID: SG-14
Analyte
Dichlorodifluoromethane (F12)
Chloromethane
Trichlorofluoromethane (Fl1)
Carbon disulfide
2-Butanone (MEK)
llrairnir
Toluene
2-Hexanone (MBK)
ErlrurhJararrfirnr
m,p-Xylene
o-Xylene
1,2,4-Trime thy I benzen e
Sample ID: SG-15
Laboratory ID: E707053-02
Reporting
Result
Limit
Units
Method
64
1 i1
ugim3
EPA TO-15
5�1
2.1
ugnn3
EPA TO- 15
32
5.6
ug/m3
EPA TO- 15
12
b 3
ug m3
I'l',X 14-I J
140
ug/m3
FPA 1041
7.8
ughn3
FI!.l'Ir�-11
17
R
ugrm3
EPA TO-15
32
8.3
ugim3
r PA "1'0-15
!9
0.'z
ughn3
EPATO-15
12
8.8
ugim3
EPA TO-15
7.6
4.4
uelli?
EPA TO- 15
11
' o
W-1
FT.) Ttl-15
Laboratory ID: E707053-03
Reporting
Analyte
Result
Limit
Units
Method
Dichlorodifluoromethane(F12)
27
In
ugim3
FPr3111-I?
Wilerne
8.9
6 9
u¢/m3
EPATO-15
Toluene
48
7.6
ug-m3
EPA TO- 15
LtLrndihuvrihmv
65
14
ugim3
EPA 10-15
Ethylbenzene
1 i0u
8.8
tignn3
EPA-I'0-15
m,p-Xylene
3100
IB
ugim3
EPATO- 15
o-Xylene
1400
S *
ugm3
I P.X I't J i i
Notes
Notes
Page 3 of 30

H&P Mobile
Geochemistry Inc.
2470lmpaJa Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast, LLP - Greensboro Project: ECS071317-11
4811 Koger Blvd Project Number: Whitaker Park Reported.
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallier 26-Jul-17 13:11
Sample ID' SG-15
Laboratory ID:
E707053-03
Reporting
Analyte
Result
Limit
Units
Method Notes
1,2,4-Trimethylbenzene
14
10
ug/m3
EPA TO- 15
Sample ID: SG-16
Laboratory ID:
E707053-04
Reporting
Analyte
Result
Limit
Units
Method Notes
Dichlorodifluoromethane(F12)
35
If,
ugim3
I J'%;u
Trichlorofluoromethane (Fl 1)
32
II
ugim3
EPA TO- 15
Carbon disulfide
22
13
ugim3
E,PATO-15
Toluene
37
' 4.
ug/m3
EPA TO-15
li-Imellorlw[hehle
140
14
❑g,m3
EPA TO- I5
Ethylbenzene
940
8 8
11F.111 i
FPATO-15
m,p-Xylene
3600
iK
ugim3
FPd 10-15
o-Xylene
1400
8.8
ugim3
EPA -10-15
4-Ethyltoluene
le
10
❑g/m3
EPA TO-15
1,3,5-Trimethylbenzene
31P
10
ugim3
EPA TO- 15
1,2,4-Trimethylbenzene
34
I;1
ug/m3
1'PA T{b 15
Sample ID: SG-17
Laboratory ID:
E707053-05
Reporting
Analyte
Result
Limit
Units
Method Notes
Dichlorodifluoromethane (Fl 2)
9.0
5.0
ug/m3
EPA TO- 15
Trichlorofluoromethane (Fl I I
[7
}r.
ug,lm3
I.P1J-1
Carbon disulfide
17
63
ugim3
It'% I) --I
Toluene
N1
I
ug/m3
EPA TO- I5
m,p-Xylene
la
K X
ug/m3
EPA TO-I5
o-Xylene
4.9
4.4
ugim3
FPATO- 15
1,2,4-Trimethylbenzene
5.7
ug/m3
EPA TO-15
Sample ID: SG-18
Laboratory ID:
E707053-06
Reporting
Analyte
Result
Limit
Units
Method Notes
Trichlorofluoromethane (Fl I)
2511
II
u2i1113
EPA TO- 15
Carbon disulfide
la
13
ug-m3
FVA'H"5
"Toluene
11
A
ug m3
f l'A 1Y1-1}
Tetrachloroethene
3XII
14
ugan3
EPA TO-15
Sample ID: SG-19
Laboratory ID
E707053-07
Analyte
Reporting
Result Limit Units Method
Notes
Pagc 4 of 30

H&P Mobile
Geochemistry Inc.
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760-804-9459 Fax
;CS Southeast, LLP - Greensboro Project: ECS071317-1 1
1811 Koger Blvd. Project Number: Whitaker Park Reported
ireensboro, NC 27407 Project Manager: Mr. Randy Cavallier M-Jul-17 13:11
Sample ID: SG-19 Laboratory ID E707053-07
Analyte
Trichlorofluoromethane (Fl 1)
Carbon disulfide
Nhurdle
Tetrachloroethene
m,p-Xylene
Sample ID: SG-20
Analyte
Trichlorofluoromethane (FIT)
2-Butanone (MEK)
Toluene
Tetrachloroethene
1,2,4-Tri meth y I benzen e
Sample ID: SG-21
Reporting
Result
Limit
Units
Method
"IV
28
ugim3
EPA 1-0-15
32
gy
ugim3
I.P,% 14-1}
77
IR
ugim3
EPA TO-15
2600
34
ugim3
L PA Li 1,L5
5.3
ugim3
r P-1 I I s-I'
LaboratoryID: E707053-08
Reporting
Result
Limit
Units
Method
9200
'.0
ug.'ra3
EpAI{I-It
7i
uii
ugim3
IYA 10-11
24
-IL
ugim3
FP,1L rr5-L7
,SUN)
34
ugim3
EPA TO- 15
21
1u
ug/m3
EPATO-15
Laboratory ID: E707053-09
Notes
Notes
Reporting
Analyte
Result
Limit
Units
Method Notes
Trichlorofluoromethane (Fl 1)
31701116
x1"
ugim3
H&P8260SV
Tetrachloroethene
Jeri
plu
ugnn3
H&P8260SV
Sample ID: SG-22
Laboratory ID
E707053-10
Reporting
Analyte
Result
Limit
Ililits
Method Notes
'Frichlorofluoromethane (Fl 1)
{,tquut
4ILr
.11dm3
II&P826QSV
Tetrachloroethene
l]il
1911
igl:m3
H&P8260SV
Sample ID: Dup-605
Laboratory ID
E707053-12
Reporting
Analyte
Result
Limit
Units
Method Notes
Dichlorodifluoromethane (1`12)
11L
.11
ugrm3
EPA TO-15
Trichlorofluoromethane(Fl1)
72
'a
ug'm3
EPA TO- 15
Carbon disulfide
24
h %
ng.MI
EPA "Fri-15
Benzene
4.9
i 2
ugm3
EPA FO-15
Toluene
9.8
3.8
ugnO
EPATO-15
Page 5 of-30

H&P Mobile
Geochemistry Inc.
2470 Impala Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast, LLP - Greensboro Project: ECS071717-16
4811 Koger Blvd. Project Number: Whitaker Park Reported
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallier 26-Jul-17 14:01
DETECTIOtiS SUMMARY
Sample ID: SG-24
Laboratory ID
E707065-01
Reporting
Analyte
Ra!+ult
Limit
Units
Method Notes
Dichlorodifluoromethane (F12)
51
54
ug/m3
EPA TO-I5
Trichlorofluoromethane (Fl1)
190
5.6
ug'm3
r R% 10 } 1;
2-Butanone (ME K)
79
SU
ugim3
ERA TO- 15
Toluene
8.1
19
ug/m3
ERA FO-15
Sample ID: SG-25
Laboratory ID
E707065-02
Reporting
Analyte
Result
Limit
Uniu
Method Notes
Dichlorodifluoromethane (1712)
341
50
ugim3
EPA TO-15
Trichlorofluoromethane (Fl 1)
22
ih
ug/m3
EPATO- 15
1,1,2-Trieblorotrifluoroethane (F113)
8.6
- 7
ug'm3
EPA LO-15
2-Butanone(ME 1)
31
30
ugnO
EPA TO-15
1,2-Dichloroethane(EDC)
9.0
4L
ugim3
ERA TO- 15
Ildhezne
24
3.2
ug/m3
EPA TO- I5
Toluene
379
18
ugim3
EPATO-15
Ethylbenzene
3S
4.4
ugim3
EPA 10-IS
m,p-Xylene
Iio
8.8
ugim3
I At tt i-13
o-Xylene
iJl
4� J
ugim3
I P4
4-Ethyltoluene
8.4
511
ug/m3
LP-h
1,3,5-Trimethylbenzene
9.2
5.0
ug/m3
EPA TO- 15
1,2,4-Trimethylhenzene
26
ugm3
EPA TO- 15
Sample ID: SG-26
Laboratory ID:
E707065.03
Reporting
Analyte
Result
Limit
Units
Method Notes
Dichlorodifluoromethane (1712)
160
t 1.
ug/m3
1 11% HI- I
Trichlorofluoromethane(Fll)
JIM}
' U
ugim3
EPA TO-15
Chloroform
062
4.9
ugim3
EPA TO- 15
Trichloroethene
Ud1
%,
ugim3
I-P} IIt-t�
Toluene
8.3
3A
ug/hn3
EPA TO-15
'fetruchronie[hcer
IY
9."
ugim3
EPATO-15
Sample ID SG-27 Laboratory ID E707065-04
Reporting
Analyte Result Limit Units Method Votes
Dichlorodifluoromethane (1`11) 16 511 ugim3 h:M 11 t. I i
(Womiffisdaw 2.2 2.1 ug;m3 EPA LO-15
Page 3 of 34

H&P Mobile
Geochemistry Inc.
2470 Impala Drive
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760-804-9678 Phone
760-804-9159 Fax
ECS Southeast, LLP- Greensboro Project: ECS071717-16
4811 Koger Blvd Project Number Whitaker Park Reported
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallier 26-Jul-17 14:01
DETECTIONS SUMMARY
Sample ID SG-24
Laboratory ID E707065-01
Reporting
,Analyte
JiadUlf Limit
Units
Method Notes
Dichlorodifluoromethane (F'12)
51 3:11
ug/m3
FPA TO-I5
Trichlorofluoromethane (Fll)
190 5.6
ug'm3
11'-% I0. I
2-Butanone(ME I)
79 NI
ugim3
I:hkro.1=
Toluene
8.1 3.8:
ugim3
F.PA FO-I5
Sample ID: SG-25
Laboratory ID: JE707065-02
Reporting
Analyte
Result
Limit
Units
Method Notes
Dichlorodifluoromethane(F12)
30
54
ug'm3
EPA TO-15
TrichlorofluoromethanefFlll
22
5.6
ugrm3
EP41t.wlt
1,1,2-Trichlorotrifluoroethane(F113)
S.6
7.7
ug'm3
EPA TO-I5
2•Butanone(ME l)
51
30
ugm3
EPA TO- 15
1,2-Dichloroethane(EDC)
9.0
4.1
ugim3
EPA 10-15
Benzene
24
3.2
u2'm3
1.1'A 14 k I °
toluene
336
3.8
ugrm3
EPA "r0-I5
EthyJbeuzene
35
4.4
ugrm3
EPA TO-I5
m,p-Xylene
1141
6 8
ug.-m3
EPA TO-15
o-Xylene
a
4.4
ug-1n3
I P.3 I I' -I.
4-Ethyltoluene
8.4
111
ug'm3
J-P,% ]I h I,
1,3,5-Tri methyl benzene
9.2
511
ugim3
EPA "r0-15
1,2,44'rimethylbenzene
1A
wo
ug,m3
1:F'tIIJ-L}
Sample ID: SG-26
Laboratory ID
E707065-03
Reporting
Analyte
Result
Limit
Units
Method litotes
Dichlorod ifluorom ethane (F12)
160
t 1t
u2v/m3
I.T.tTD. I
Trichlorofluoromethane(Fll)
860
5.6
ugim3
rF!.% 1.15.1;
Chloroform
8,2
4.9
ug/m3
EP.ATO- 15
Trichloroethene
9.0
ug m3
11-.11A 111-11
Toluene
8.3
Jh
ugim3
EPA I•Ii,tJ
1'etrachloroethene
111
Ji
ugim3
EPA T0-I5
Sample ID: SG-27
Laboratory ID:
E707065-04
Reporting
Analyte
Result
Limit
Units
Method Note&
Dichlorodifluoromethane (F12)
16
5 11
ug/m3
11' I 115 I c
Chloromethane
2.2
= 1
ug,m3
EPA TO- 15
Page 3 of 34

H&P Mobile
Geochemistry Inc.
2470Impala Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast, LLP - Greensboro Project: ECS071717-16
4911 Koger Blvd- Project Number Whitaker Park Reported
Greensboro, NC 27407 Project Manager. Mr Randy Cavallier 26-Jul-17 14:01
Sample ID: SG-27
Laboratory ID:
E707065-04
Reporting
Analyte
1(.e.1u11
Limit
Units
Method
Notes
Trichlorofluoromethane (Fl1)
7.8
1 6
ue m 3
EP.A TO -I 5
2-Butanone (ME K)
j0
7U
ug/m3
F.PATO-15
Toluene
4-1
4 X
ug/m3
EPA TO- 15
Sample ID. SG-28
Laboratory ID
E707065-05
Reporting
Analyte
Remill
Limit
Units
Method
Notes
Dichlorodifluoromethane(F12)
69
5.0
ugnn3
EPA FO-15
Trichlorofluoromethane (Fl1)
12
ugim3
EPA TO-15
Nament
4.2
I !
ug m3
I P.5 Ti F. I
Foluene
7.2
i.1
ugim3
EPA 1'0-15
Sample Ill: SG-29
Laboratory ID:
E707065-06
Reporting
Analyte
Result
Limit
Units
Method
Notes
Dichlorodifluoromethane (F12)
07
� .l
ugim3
EPA TO-15
'Frichlorofluoromethane (Fit I
1311
5.6
ug/m3
EPAto- 15
Carbon disulfide
S3
6.3
ua ail.!
L•31i rU.1s
Benzene
7.2
31
ugim3
I'm r1.1.15
Toluene
11
3.8
ug;m3
IT-1 I'l) I
2-HexanOne (MBK)
14
K 4
ug/m3
EPA 10-15
lelrHrlll.+rrllhi'
17
6.9
ug,m3
EPA 1'O-I5
1,2,4-Trimethylbenzene
S
% 11
oghn3
EPA TO-15
Sample ID: SG-30
Laboratory ID
E707065-07
Reporting
Analyte
Result
Limit
Units
Method
Notes
Carbon disulfide
1'k
ioA m I
I -PA ri I-L!
Benzene
3 i
ugnnS
EPA TO-15
Toluene
5.7
3.8
ugnu
EPA TO- 15
Sample ID: SG-31
Laboratory ID
E707065-08
Reporting
Analyte
kcw11
Limit
Units
Method
Notes
Dichlorodifluoromethane (F12)
5.1
s it
up-ni s
I P1 11 0-1 -
Chloromethane
ZA
2A
ugim3
I-P.%
Carbon disulfide
24.9
n �
ug;m3
ERA TO-]
11=4PC
5A
3.2
ugim3
FRATO- 15
'toluene
II
tx
ug:'m3
EPATO-15
Page 4 of 34

H&P Mobile
Geochemistry Inc.
2470Impala Drive
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760-804-9678 Phone
760-804-9159 Fax
ECS Southeast, LLP- Greensboro Project: FCS071717-16
4811 Koger Blvd Project Number: Whitaker Park Reported
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallier 26-Jul-17 14:01
Sample ID SG-31 Laboratory Ill E707065-08
Reporting
Analyte Result Limit Unus Method Notes
1,2,4-Trimethylbenzene 6.7 qii ug/110 t14lCt-l!L
Sample ID. DUP2-1 Laboratory ID: E707065-09
Reporting
Analyte
ke%rill
Limit
Units
Method Notes
Dichlorodifluoromethane (IF12)
A
5.0
uem3
I itk rtt-1
Chloromethane
'di
2A
ugim3
1'PAh5.1
Trichlorofluoromethane(Fl11)
22n
5.6
uµ.rn3
EPATO-15
2-Butanone (ME K)
7!t
dU
ug/m3
EPA TOA 5
Sample ID. DUP605-12
Laboratory ID
E707065-10
Reporting
Analyte
Result
Limit
Units
Method Notes
Dichlorodifluoromethane(F12)
130
5.0
ug/m3
EPATO- 15
l:hl1Pnimxl6une
J.R
2.1
ugim3
ERA TO- 15
Trichlorofluoromethane (FI I)
11
56
ugim3
IVAVI-.6
lN6 rle
4.1
3.2
ug/m3
EPA TO-15
Toluene
19
1 B
ugim3
EPA TO- 15
m,p-Xylene
I Z
R R
ugim3
EPA TO-15
o-Xylene
5.4
1.1
ug,m3
FM Ii1-5�
Sample ID: SG-32
Laboratory ID:
E707065-11
Reporting
Analyte
R"lli
Limit
Units
Method Notes
Dichlorodifluoromethane (FI2)
11
5.0
ugim3
EPA TO-15
Chloromethane
3.9
2.4
ugim3
EPA TO-I5
1'richlorofluoromethane(F1I)
IS
4f,
ug/m3
EPA I'0-15
Twkmpe
N
3.8
ugim3
I P k I 1 1.1 ;
m,p-Xylene
11
H H
ugim3
EPA1-0-15
Sample ID: SG-33
Laboratory ID
E707065-12
Reporting
Analyte
Result
Limit
Units
Method Notes
Dichlorodifluoromethane (F12t
11$IMI
-
ugim3
I t' % I 1 1-1 -
Toluene
32
19
ughn3
FRA TO-1 5
Sample ID: SG-34
Laboratory ID
E707065-13
Reporting
Analvte
Result
Limit
Units
Method Notes
Page ; of 34

H&P Mobile
Geochemistry Inc.
2470 Impala Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast, LLP- Greensboro Project ECS071717-16
4811 Koger Blvd. Project Number: Whitaker Park Reported
Greensboro, NC 27407 P
Project Manager: Mr. Randy Cava] 26-Jul-17 I4:01
Sample ID: SG-34 Laboratory ID: E707065-13
Reporting
Analyte
Result
Limit
Units
Method Notes
DichlorodiFluoromethane(F12)
12000
.5
ug/m3
EPATO-15
TPILInK
36
P11
ug/m3
1.11,%
Sample ID: SG-35
Laboratory ID:
E707065-14
Reporting
Analyte
Result
Limit
Units
Method Notes
DichlorodiFluoromethane (F12)
NA
5.0
lq'm3
I P.% ]'a 1. 1'
Sample ID: DCP630
Laboratory ID:
E707065-15
Reporting
Analyte
Re%hph
Limit
1'111;s
Method Notes
DichlorodiFluoromethane(F12)
131MIU
'L
Lym.1
FP,ATO- 15
TrichloroFluoromethane(F1I)
Ib
5.6
ukrmd
EPATO-15
Iolwolk.
17
12
up:1111
ERA TO- 15
Page 6 of 34

H&P Mobile
Geochemistry Inc.
2470Impala Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fax
FCS Southeast, ELP- Greensboro Project ECS062917.13
4811 Koger Blvd. Project Number Whitaker Park J Winston Salem Reported
Greensboro, NC 27407 Project Manager Mr. Randy Cavallier 10-Jul-17 15 01
Volatile Organic Compounds by EPA TO-15
H&P Mobile Geochemistry, Inc.
Reporting Dilution
Analyte Result 1 iuui 1 miry Factor Batch Prepared Analyzed Method Notes
SG-1 (E706110-01) Vapor Sampled: 26-Jun-17
Received: 29-Jun-17
Dichlorodifluoromethane (F12)
6.8
5.0 uPn'3 I F.Ellmlt1 117-la1-I.' 07-Jul-17 EPA 10-I5
Chloromethane
ND
2.1
Dichlorotetrafluoroethane IF 114)
ND
7.1
Vinyl chloride
ND
2.6 "
Bromomethane
ND
16 "
Chloroethane
ND
8.0
Trichlorofluoromethan c (Fll)
13
5.6 "
I,I-Dichloroethene
ND
4.0
1,1,2-Trichlorotrifluoroethane(F113)
ND
7.7 "
Methylene chloride (Dichloromethane)
ND
3.5 "
Carbon disulfide
ND
6.3 "
trans-1,2-Dichloroethene
ND
8.0
1, 1 -Dichloroethane
ND
4.1
2-Butanone (MFK)
ND
30
cis-1,2-Dichloroethene
ND
4.0
Chloroform
ND
4.9 "
1, 1, 1 -Trichloroethane
ND
5.5
1,2-Dichloroethane (EDC)
ND
4.1
Benzene
ND
3.2 "
Carbon tetrachloride
ND
6.4 "
Trichloroethene
ND
5.5 "
1,2-Dichloropropane
ND
9.4 "
Bromodichloromethane
ND
6.8 "
cis-1,3-Dichloropropene
ND
4.6 "
4-Methyl-2-pentanone (MIBK)
ND
8.3
trans-1,3-Dichloropropene
ND
4.6 "
Toluene
13
3.8 "
1,1,2-Trichloroethane
ND
5.5
2-Hexanone (MBK)
ND
8.3 "
Dibromochloromethane
ND
8.6
Tetrachloroethene
ND
6.9 '
t,2-Dibromoethane (EDB)
ND
7.8
4,1,1,2-'Fetrachloroethane
ND
7.0
Chlorobenzene
ND
4.7 '
Ethylbenzene
8.5
4.4 "
m,p-Xylene
44
8.8 "
Stvrene
ND
4.3 "
o-Xylene
18
4.4 "
Page 8 of 33

H&P Mobile
Geochemistry Inc.
2470lmpala Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast- LLP- Greensboro Project: ECS062917-13
4811 Koger Blvd. Project Number: Whitaker Park / Winston Salem Repurted
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallier 10-Jul-17 15 01
Volatile Organic Compounds by EPA TO-15
H&P Mobile Geochemistry, Inc.
Reporting Dilution
Anal.yte Reulh Limit l;nity Factor Ogtlrls Prepared Analyzed Method Notes
SG-1 (E706110-01) Vapor Sampled: 26-Jun-17 Received: 29-Jun-17
Bromoform
ND
10 uwm.i 07-Jul-17 07Jub17 FRy [()-tt
1,1,2,2-Tetrachloroethane
ND
7.0 "
4-Ethyltoluene
5.1
5.0 "
1,3,5-Trimethylbenzene
8.1
5.0
1,2,4-Trimethylbenzene
21
5.0
1,3-Dichlorobenzene
ND
12 "
1,4-Dichlorobenzene
NI)
12 "
1,2-Dichlorobenzene
ND
12
1,2,4-Trichlorobenzene
ND
38 "
Hexachlorobutadiene
ND
M "
Surrogate: 1,2-Dichloroethane-d4
M4 % 76-134 "
Surrogate: lbluene-d8
102 % 78-125 "
Surrogate: 4-Bromq luoroben_ene
U.10 % 77-127 "
SG-2 (E706110-02) Vapor Sampled: 26-Jun-17
Received: 29-Jun-17
Dichlorodifluoromethane(F12)
8.8
5.0 ugim.3 I I1.7l4r111 tl'-Iy1•P- 07-Jul-17 I'ign1.15
Chloromethane
ND
2.1
Dichlorotetratluoroetbane (F114)
ND
7.1 "
Vim-1 chloride
ND
2.6
Bromomethane
ND
16 '
Chloroethane
ND
8.0 "
rrichlorofluoromethane WI I I
ND
5.6 "
1,1-Dichloroethene
ND
4.a "
1, 1,2-Trichlorotrifl uoroethane (F 113)
ND
7.7 "
Methylene chloride (Dichloromethane)
ND
3.5
Carbon disulfide
25
6.3
trans•1,2-Dichloroethene
ND
8-0
1, 1 -Dichloroethane
ND
4.1
2-Butanone (M9K)
30
30
cis-1,2-Dichloroethene
ND
4.0
Chloroform
ND
4.9 "
l,L.1-Trichloroethane
ND
5.5
1,2-Dichloroethane(EDC)
ND
4.1 "
Benzene
ND
3.2
Carbon tetrachloride
ND
6.4 "
Dichloroethene
ND
5.5
1,2-Dichloropropane
ND
9.4 '
Page 9 of 33

H&P Mobile
Geochemistry Inc.
2470 Impala Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast, LLP- Greensbora Project: ECS062917-13
4811 Koger Blvd Project Number Whitaker Park / Winston Salem Reported
Greensboro, NC 27407 Project Manager Mr. Randy Cavallier 10-Jul-17 I5:01
Volatile Organic Compounds by EPA TO-15
H&P Mobile Geochemistry, Inc.
Reporting Dilution
Analyte Result Limit Units wr Batch Prepared Analyzed Method \otes
SG-2 (E706110-02) Vapor Sampled: 26-dun-17 Received: 29-.Jun-17
Bromodichloromethane
ND
6.8
ug m3 1 EG71010 07-Jul-17 07-Jul-17 lipq'I,U-11
cis-1,3-Dichloropropene
ND
4.6
"
4-Methyl-2-pentanone(MIBK)
ND
8.3
"
trans-1,3-Dichloropropene
ND
4.6
"
Toluene
7.6
3.8
"
1,1,2-Trichloroethane
ND
5.5
2-Hexanone (MBK)
ND
8.3
Dibromochloromethane
ND
8.6
"
Tetrachloroethene
24
6.9
1.2-Dibromoethane (EDB)
ND
7.8
I,IJ 2-Tetrachloroethane
ND
7.0
Chlorobenzene
ND
4.7
"
Ethylbenzene
ND
4.4
"
m,p-Xylene
10
8.8
Styrene
ND
4.3
"
o-Xylene
5.2
4.4
Bromoform
ND
10
"
1,1,2,2-Tetrachloroethane
ND
7.0
4-Ethyltoluene
ND
5.0
1,3,5-Trimethylbenzene
ND
5.0
1,2,4-Trimethylbenzene
16
5.0
1,3-Dichlorobenzene
ND
12
1.4-Dichlorobenzene
ND
12
1,2-Dichlorobenzene
ND
12
"
1,2,4-Trichlorobenzene
ND
38
Hexachlorobutadiene
ND
54
Surrogate: 1.2-Diehloroethane-d4
104 %
-6-144
Surrogate: Toluene-d8
103 %
-844F
Surrogate: 4-BromoJluorobencene
97.8 °/a
17-fi; 7 "
Page 10 of 33

H&P Mobile
Geochemistry Inc.
2470 Impala Drive
Carlsbad, CA 92010
760-804-9678 Phone
7,60-804-9159 Fax
ECS Southeast, LLP- Greensboro Project: ECS062917-13
4811 Koger Blvd. Project Number: Whitaker Park J Winston Salem Reported
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallier 10-Jul-17 13:01
Volatile Organic Compounds by EPA TO-15
H&P Mobile Geochemistry, Inc.
Reporting Dilution
:lnalyto Result Limit Units Factor Batch Prepared Analyzed Method Notes
SG-3 (E706110-03) Vapor Sampled: 26-Jun-17 Received: 29-Jun-17
Dichlorodifluoromethane (F12)
6.9
5.0 ug/m3 1 EG71010 07-Jul-17 07-Jul-17 EPA TO- 15
Chloromethane
ND
2.1
Dichlorotetrafluoroethane (F114)
ND
7.1 '
Vinyl chloride
ND
2.6 "
Bromomethane
ND
16 '
Chloroethane
ND
8.0
Trichlorofluoromethane (F 11)
ND
5.6 '
1,1-Dichloroethene
ND
4.0 '
1, 1,2-Trichlorotrifluoroethane (F 113)
ND
7.7 "
Methylene chloride (Dichloromethane)
ND
3.5
Carbon disulfide
47
6.3 "
trans-1,2-Dichloroethene
ND
8.0 '
1,1-Dichtoroethene
ND
4.1 "
2-Butanone (MEK)
ND
30 "
cis-1,2-Dichloroethene
ND
4.0 '
Chloroform
ND
4.9 "
1, 1, 1 -Trichloroethane
ND
5.5 '
1,2-Dichloroethane (EDC)
ND
4.1 "
Benzene
6.1
3.2 "
Carbon tetrachloride
ND
6.4 '
Tnchloroethene
ND
5.5 '
1,2-Dichloropropane
ND
9.4 "
Bromodichloromethane
ND
6.8 "
cis-1,3-Dichloropropene
ND
4.6
4-Methyl-2-pentanone (MIBK)
ND
8.3 '
trans-1,3-Dichloropropene
ND
4.6 "
Toluene
59
3.8 "
1,1,2-Trichloroethane
ND
5.5 "
2-Hexanone (MBK)
ND
8.3 "
DlbromochlOFOmethane
ND
8.6 `
Tetrachloroethene
ND
6.9 "
12-Dibromoethane (FDB)
ND
7.8 '
1, 1, 1,2-'Fetrachloroethane
ND
7.0 "
Chlorobenzene
ND
4.7 "
Ethylbenzene
9.9
4.4 "
m,p-Xylene
42
8.8 "
Styrene
ND
4.3 "
o-Xylene
18
4.4 "
Page I of33

H&P Mobile
Geochemistry Inc.
2470Impala Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast, UP - Greensboro Project: ECS062917-13
4811 Koger Blvd Project Number: Whitaker Park / Winston Salem Reported
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallier 10-Jul-17 15.01
Volatile Organic Compounds by EPA TO-15
H&P Mobile Geochemistry, Inc.
Reporting Dilution
Analyte Result Limit knits I pcnv Batch Prepared Analyzed Method Notes
SG-3 (E706110-03) Vapor Sampled: 26-Jun-17 Received: 29-Jun-17
Bromoform
ND
10
+iµ1113 L EG71010 07-Jul-17 07-Jul-17 EPAT0.15
1,1,2,2-Tetrachloroethane
ND
7.0
"
4-Ethyltoluene
5.7
5.0
"
1,3,5-Trimethylbenzene
6.9
5.0
'
1,2,4-Trimethylbenzene
24
5.0
'
1,3-Dichlorobenzene
ND
12
'
1,4-Dichlorobenzene
ND
12
1,2-Dichlorobenzene
ND
12
'
1,2,4-Trichlorobenzene
ND
38
"
Hexachlorobutadiene
ND
5A
"
Surrogate: 1,2-Dichloroethane-d4
Hi"0
76-134 "
Surrogate: Toluene-d8
103 %
78-125 "
Surrogate. 4-Bromofluoroben_ene
1U1 %
77-127 "
SG-4 (E706110-04) Vapor Sampled: 26-Jun-17
Received: 29-Jun-17
Dichlorodifluoromethane(F12)
9.1
5.0
W!'+nt I EG71010 07-Jul-17 11--lul IEPA TO- 15
Chloromethane
ND
2.1
"
Dichlorotetrafluoroethane (FI 14)
ND
7.1
`
Vinyl chloride
ND
2.6
`
Bromomethane
ND
16
"
Chloroethane
ND
8.0
"
Trichlorofluoromethane (F I I )
ND
5.6
"
I, 1•Dichloroethene
ND
4.0
'
1,1,2-Trichlorotrifluoroethanc(F113)
ND
7.7
Methylene chloride (Dichloromethanc)
ND
3.5
"
Carbon disulfide
ND
6.3
"
trans-L2-Dichloroethene
ND
8.0
"
1, 1 -Dichloroethane
ND
4.1
"
2-Butanone (MF.K)
ND
30
cis-1,2-Dichloroethene
ND
4.0
Chloroform
ND
4.9
1, 1 A -Trichloroethane
ND
5.5
"
1,2-Dichloroethane (EDC)
ND
4.1
"
Benzene
ND
3.2
"
Carbon tetrachloride
ND
6.4
Trichloroethene
ND
5.5
"
1,2-Dichloropropane
ND
9.4
'
Page 12 ol'33

H&P Mobile
Geochemistry Inc.
2470Impala Drive
,Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast, LLP - Greensboro Project: ECS062917-13
4811 Koger Blvd Project Slumber: Whitaker Park f Winston Salem Reported
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallier 10-Jul-17 15:01
Volatile Organic Compounds by EPA TO- 15
H&P Mobile Geochemistry, Inc.
Reporting Dilution
Analyte Reuaq Limit Units Factor Batch Prepared )�nulvnd Method Votes
SG-4 (C706110-04) Vapor Sampled: 26-Jun-17 Received: 29-Jun-17
Bromodichloromethane
ND
6.8
ugim3 I EG71010 07-Jul-17 07-Jul-17 ITA tfb l `
cis-1,3-Dichloropropene
ND
4.6
`
4-Methyl-2-pentanone (MIBK)
ND
8.3
"
trans-1,3-Dichloropropene
ND
4.6
"
Toluene
3.9
3.8
1,1,2-Trichloroethane
ND
5.5
"
2-Hexanone (MBK)
ND
8.3
'
Dibromochloromethane
ND
8.6
"
Tetrachloroethene
39
6.9
1,2-Dibromoethane (EDB)
ND
7.8
1, 1, 1,2-Tetrachloroethane
ND
7.0
Chlorobertzene
ND
4.7
"
Ethylbenzene
ND
4.4
"
m,p-Xylene
ND
8.8
"
Styrene
ND
4.3
o-Xylene
4.5
4.4
"
Bromoform
ND
10
1,1,2,2-Tetrachloroethane
ND
7.0
4-Ethyholuene
ND
5.0
"
1,3,5-Trimethylbenzene
ND
5.0
1,2,4-Trimethylbenzene
13
5.0
1,3-Dichlorobenzene
ND
12
"
I.4-Dichlorobenzene
ND
12
1,2-Dichlorobenzene
ND
12
1,2,4-Trichlorobenzene
ND
38
"
Hexachlorobutadiene
ND
54
Surrogate: 1,2-Diehloroethane-d4
102 %
76-134
Surrogate' Toluene-dS
103 %
78-12.5
Surrogate: 4-Bromofluorohen_ene
102 %
77-127 "
Page 13 of 33

H&P Mobile
Geochemistry Inc.
2470Impala Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804.9159 Fax
ECS Southeast, LLP- Greensboro Project: ECS062917-13
4811 Koger Blvd Project Number: Whitaker Park / Winston Salem Reported
Greensboro, NC 27407 Project Manager Mr Randy Cavallier 10-Jul-17 I5:01
Volatile Organic Compounds by EPA TO-15
H&P Mobile Geochemistry, Inc.
Reporting Dilution
Analyte Result Limit Units I ,o--! i Batch Prepared Analyzed Method Notea
SG-5 (E706110-05) Vapor Sampled: 26-Jun-17
Received: 29-Jun-17
Die hlorodifluoromethane(F12)
8.2
5.0 ug/m3 I EG71010 07-Jul-17 07-Jul-17 EPATO-l5
Chloromethane
ND
2.1
Dichlorotetrafluoroethane(F114)
ND
7.1
Vinyl chloride
ND
2-6
Bromomethane
ND
16
Chloroethane
ND
8.0
Trichlorofluoromethane (F11)
100
5.6
i,I-Dichloroethene
ND
4.0
1, 1,2-Trichlorotrifluoroethane (F 113)
ND
7.7 "
Methylene chloride (Dichloromethane)
ND
3.5
Carbon disulfide
27
6.3 "
trans-1,2-Dichloroethene
ND
8.0 "
1, 1 -Dichloroethane
ND
4.1
2-Butanone (MEK)
ND
30
cis-1,2-Dichloroethene
ND
4.0
Chloroform
ND
4.9
1.1,1-frichloroethane
ND
5.5 "
1,2-Dichloroethene (EDC)
ND
4.1 "
Benzene
ND
3.2 "
Carbon tetrachloride
ND
6.4
Trichloroethene
ND
5.5
1,2-Dichloropropane
ND
9.4
BromodichIoromethane
ND
6.8
cis-1,3-Dichloropropene
ND
4.6
4-Methyl-2-pentanone (MIBK)
ND
8.3 "
trans-1,3-Dichloropropene
ND
4.6
Toluene
20
3.8
1,1,2-Trichloroethane
ND
5.5
2-Hexanone (MBK)
ND
8.3'
Dibromochloromethane
ND
8.6
Tetrachloroethene
23
6.9
t,2-Dibromoethane (EDB)
ND
7.8
1, 1, 1,2-Tetrachloroethanc
ND
7.0
-Chlorobenzene
ND
4.7
F.thvlbenzene
ND
4.4
m,p-Xylene
17
8.8
Styrene
ND
4.3
o-Xylene
7.8
4.4
Page 14 of33

H&P Mobile
Geochemistry Inc.
2470 Impala Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast, LLP- Greensboro Project: ECS062917-13
4811 Koger Blvd. Project Number: Whitaker Park / Winston Salem Reputted.
Greensboro, NC 27407 Project Manager Mr. Randy Cavallier 10-Jul-17 15:01
Volatile Organic Compounds by EPA TO-15
H&P Mobile Geochemistry, Inc.
Reporting Dilution
AnalY to Result 1 imn I nrl, 1'rlix batch Prepared Analyzed Method
SG-5 (E706110-05) Vapor Sampled: 26-Jun-17
Received: 29-Jun-17
Bromoform
ND
10 ug,m3 I EG71010 07-Jul-17 07-Jul-17 EPA TO- I5
1,1,2,2-Tetrachloroethane
ND
7.0
4-Ethyltoluene
ND
5.0 "
1,3,5-Trimethylbenzene
ND
5.0
1,2,4-Trimethylbenzene
15
5.0
1,3-Dichlorobenzene
ND
12
1,4-Dichlorobenzene
ND
12
1,2-Dichlorobenzene
ND
12
1,2,4-Trichlorobenzene
ND
38 "
Ilexachlorobutadiene
ND
54 "
Surrogate: 1,2-Dichloroethane-d4
117f °b 76-134
Surrogate: Toluene-d8
fia4 % 78-125
Surrogate. 4-BromoJluoroben_ene
RAP % 77-127 "
SG-6 (E706110-06) Vapor Sampled: 26-Jun-17
Received: 29-Jun-17
Dichlorodifluoromethane(F12)
7.3
5.0 ugim3 I EG71010 07-Jul-17 07-Jul-17 EPA TO-15
Chloromethane
ND
2.1
Dichlorotetrafluoroethane (FI14)
ND
7.1
Vinyl chloride
ND
2.6 "
Bromomethane
ND
16
Chloroethane
ND
8.0
Trichlorofluoromethane (F11)
1400
5.6'
1,1-Dichloroethene
ND
4.0
1, 1,2-Trichlorotrifluoroethane (F 113)
ND
7.7'
Methylene chloride (Dichloromethane)
ND
3.5'
Carbon disulfide
17
6.3
trans-1,2-Dichloroethene
ND
8.0 `
Ll-Dichloroethane
ND
4.1
2-Butanone (MEK)
ND
30
cis-1,2-Dichloroethene
ND
4.0 T
Chloroform
ND
4.9
l.l.1-'fichloroethane
ND
5.5
1,2-Dichloroethane (EDC)
ND
4.1
Benzene
3.9
3.2
Carbon tetrachloride
ND
6.4
Trichloroethenc
ND
5.5
1,2-Dichloropropane
ND
9.4
Page 15 of33

H&P Mobile
Geochemistry Inc.
2470 Impala Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast, LLP - Greensboro Project: ECS062917-13
4811 Koger Blvd Project Number: Whitaker Park / Winston Salem Reported:
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallier 10-Jul-17 15:01
Volatile Organic Compounds by EPA TO-15
H&P Mobile Geochemistry, Inc.
Reporting Dilution
laud W Rcotdl Limit I nu. Fhir Batch Prepared Analyzed Method Notes
SG-6 (E706110-06) Vapor Sampled: 26-Jun-17 Received: 29-Jun-17
Bromodichloromethane
ND
6.8
ugm3 I EG71010 07-Jul-17 IJ7-lul-II EPA TO-15
cis-1,3-Dichloropropene
ND
4.6
'
4-Methyl-2-pentanone(MIBK)
NI)
8.3
"
trans- I -3-Dichloropropene
ND
4.6
`
Toluene
14
3.8
'
1,1,2-Trichloroethane
ND
6.5
`
2-Hexanone (MBK)
ND
8.3
'
Dibromochloromethane
ND
8.6
"
Tetrachloroethene
8.5
6.9
1,2-Dibromoethane (EDB)
ND
7.8
I,1,1,2-"I'etrachloroethane
ND
7.0
Chlorobenzene
ND
4.7
"
Ethvlbenzene
ND
4.4
"
m,p-Xylene
17
8.8
Styrene
ND
4.3
o-Xylene
9.5
4.4
Bromotorm
ND
10
"
I, 1,2,2•Tetrachloroethane
ND
7.0
4-Fthyltoluene
ND
5.0
"
1,3,5-Trimethylbenzene
5.6
5.0
1,2,4-Trimethylbenzene
22
5.0
1.3-Dichlorobenzene
ND
12
"
1,4-Dichlorobenzene
ND
12
1,2-Dichlorobenzene
ND
12
1,2,4-Trichlorobenzene
ND
38
Hexachlorobutadiene
ND
54
Surrogate: 1.2-Dichloroethane-d4
101 %
76-134
Surrogate: Toluene-d8
107 %
18-123 "
Surrogate. 4-Bromq/luoroben_ene
103 %
77-127 '
Page 16 of'33

H&P Mobile
Geochemistry Inc.
2470 Impala Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast, LLP - Greensboro Project: ECS062917-13
4811 Koger Blvd Project Number_ Whitaker Park 1 Winston Salem Reported
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallier 10-Jul-17 15:01
Volatile Organic Compounds by EPA TO-15
H&Y Mobile Geochemistry, Inc.
Reporting Dilution
Analyte Result Limit Umts Factor Flouli Prepared .analyzed Method Noes
SG-7 (E706111-01) Vapor Sampled: 27-Jun-17 Received: 29-Jun-17
Dichlorodifluoromethane(F12)
ND
5.0 ug,m3 I EG71010 07-Jul-17 07-Jul-17 EPA TO- 15
Chloromethane
20
2.1
Dichlorotetrailuoroethane (F114)
ND
7.1
Vinyl chloride
ND
2.6 "
Bromomethane
ND
16 "
Chloroethane
ND
8.0
Trichlorofluoromethane(FII)
ND
5.6
1,1-Dichloroethene
ND
4.0
1,1,2--I-richlorotrifluoroethane(F113)
ND
7.7
Methylene chloride (Dichloromethane)
ND
3.5
Carbon disulfide
ND
6.3
trans-1,2-Dichloroethene
ND
8.0
1, 1 -Dichloroethane
ND
4.1
2-Butanone (MEK)
ND
30
cis-1,2-Dichloroethene
ND
4.0
Chloroform
ND
4.9 "
I,LI-Trichloroethane
ND
5.5 "
1,2-Dichloroethane(EDC)
ND
4.1 `
Benzene
17
3.2 '
Carbon tetrachloride
ND
6.4
Trichloroethene
ND
5.5
1,2-Dichloropropane
ND
9.4
Bromodichloromethane
ND
6.8
cis-1,3-Dichloropropene
ND
4.6 `
4-Methyl-2-pentanone (MIBK)
ND
8.3 `
trans-1,3-Dichloropropene
ND
4.6 '
Toluene
13
3.8 '
L1,2-Trichloroethane
ND
5.5 "
2-Hexanone (MBK)
ND
8.3 '
Dibromochloromethane
ND
8.6 "
Letrachloroethene
ND
6.9 '
1,2-Dibromoethane (EDB)
ND
7.8 '
1, L 1,2-Tetmchloroethane
ND
7.0 "
Chlorobenzene
ND
4.7 '
Ethylbenzene
ND
4.4 '
m,p-Xylene
13
8.8 "
Styrene
ND
4.3 "
o :Xylene
7.9
4.4 '
Page 17 ol'33

H&P Mobile
Geochemistry Inc.
24701mpala DrivA
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast, LLP - Greensboro Project: ECS062917.13
4911 Koger Blvd Project Number: Whitaker Park I Winston Salem Reported
Greensboro, NC 27407 Project Manager: Mr. Randy Cavall ier 10-Jul-17 15:A I
Volatile Organic Compounds by EPA TO-15
H&P Mobile Geochemistry, Inc.
Reporting Dilution
Result Limit Units Factor Hatch Prepared Analyzed Method Notes
SG-7 (E706111-01) Vapor Sampled: 27-Jun-17 Received: 29-Jun-17
Bramoform
ND
10 Luini 1 E'u7111111 07-Jul-11 07-Jul-17 ERA TO- 15
1,1,2,2-Tetrachloroethane
ND
7.0
4-Ethyltoluene
ND
5.0 "
1,3,5•TrimethyIbenzene
ND
5.0
1,2,4-Trimethylbenzene
16
5.0
1,3-Dichlorobenzene
ND
12 "
1,4-Dichlorobenzene
ND
12 "
1,2-Dichlorobenzene
ND
12 "
1,2,4-Trichlorobenzene
ND
38
Hexachlorobutadiene
ND
54 "
Surrogate: 1,2-Dichloroethane-d4
'J9. •" `ha 76-134 '
Surrogate. Toluene-d8
JtJ5 N 78-125 "
Surrogate:4-Bromojluoroben_ene
1(9)4v 77-127 "
SG-8 (E706111-02) Vapor Sampled: 27-Jun-17
Received: 29-Jun-17
Dichlorodifluoromethane(F12)
ND
5.0 ugrm3 I 4:011.1141 t17-1ul-11 47-lul-I1 EPATO- 15
Chloromethane
12
21 "
Dichlorotetrafluoruethane (F 114)
ND
7.1
Vinyl chloride
5.0
2.6
Bromometbane
ND
16
Chloroethane
ND
8.0
Trichlorofluoromethane (Fll)
280
5.6 "
I,1-Dichloroethene
ND
4.0 "
1,1,2-Trichlorotrifluoroethane (F113)
ND
7.7 "
Methylene chloride (Dichloromethane)
4.5
3.5
Carbon disulfide
32
6.3
trans-1,2-Dichloroethene
ND
8.0 '
IJ-Dichloroethane
ND
4.1 "
2-Butanone (MEK)
ND
30'
cis- 1,2-Dic hloroethene
5.4
4.0
Chloroform
11
4.9
1,1,I-Trichloroethane
ND
5.5 "
1,2-Dichloroethane (EDC)
ND
4.1 "
Benzene
19
3.2 "
Carbon tetrachloride
ND
6.4
Trichloroethene
12
5.5 "
1,2-Dichloropropane
ND
9.4
Page 18 of 33

H&P Mobile
Geochemistry Inc.
2470Impala Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast, LLP - Greensboro Project ECS062917-13
4811 Koger Blvd. Project Number Whitaker Park / Winston Salem Reported
Greensboro, NC 27407 Project Manager: Mr Randy Cavallier 10-Jul•17 15.01
Volatile Organic Compounds by EPA TO-15
H&P Mobile Geochemistry, Inc.
Rtipirnin15 Dilution
Analyte Result 1 uuu 1 iyn, Factor Batch Prepared Analyzed Method \otes
SG-8 (E706111-02) Vapor Sampled: 27-Jun-17
Received: 29-Jun-17
Brumodichloromethane
ND
6.8 ugim3 I EG71010 07-Jul-17 07-Jul-17 EPA TO- 15
cis-1,3-Dichloropropene
ND
4.6 "
4-Methyl-2-pentanone (MIBK)
ND
8.3
trans-1,3-Dichloropropene
ND
4.6
Toluene
34
3.8 "
I,,1,2-Trichloroethane
ND
5.5
2-Hexanone (MBK)
ND
8.3
Dibromochloromethane
ND
8.6 "
Tetrachloroetheue
56
6.9 '
L?-Dibromoethane (EDB)
ND
7.8 "
1,1,1,2-1'etrachloroethane
ND
7.0
Chlorobenzene
ND
4.7
Ethylbenzene
5.6
4.4
m,p-Xylene
21
8.8
Styrene
ND
4.3
o-Xylene
12
4.4
Bromoform
ND
10
1,1,2,2-Tetrachloroethane
ND
7.0
4-Ethyltoluene
ND
5.0
1,3,5-Trimethylbenzene
6.4
5.0
1,2,4-Trimethylbenzene
25
5.0 "
1,3-Dichlorobenzene
ND
12
1,4-Dichlorobenzene
ND
12
1,2-Dichlorobenzene
ND
12
1,2,4-Trichlorobenzene
ND
38
Hexachlorobutadiene
ND
54
Surrogate: 1,2-Dichlaroethane-d4
96.5 %
Surrogate: Toluene-d8
105 °✓a P-ir5
Surrogate: 4•BromoJluoroben:7ene
102 910
Page 19 of 33

H &P Mobile
Geochemistry Inc.
2470Impala Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast, LLP- Greensboro Project. ECS062917-13
4811 Koger Blvd. Project Number: Whitaker Park / Winston Salem Reported
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallier 10-Jul-17 15:01
Volatile Organic Compounds by EPA TO-15
H&P Mobile Geochemistry, Inc.
Reporting Dilution
Analyte Result Limit Cnits Factor Hatch Prepared Analyzed Method Notes
SG-9 (E706111-03) Vapor Sampled: 27-Jun-17
Received: 29-Jun-17
Dichlorodifluoromethane(F12)
ND
5.0 ugm3 I EG71010 07-Jul-17 07-Jul-17 EPA TO- 15
Chloromethane
49
2.1
Dichlorotetrafluorocthane (F114)
ND
7.1
Vinyl chloride
3.6
2.6 "
Bromomethane
ND
16
Chloroethane
15
8.0
Trlchlorofluoromethane (F I I)
ND
5.6
LI-Dichloroethene
ND
4.0
L 1,2• 1'richlorotrifluoroethane (F 1 131
ND
7.7
Methylene chloride (Dichloromethane)
ND
3.5
Carbon disulfide
ND
6.3 "
trans-1,2-Dichloroethene
ND
8.0
1, 1 -Dichloroethane
ND
4.1 "
2-Butanone (MEK)
ND
30 "
cis-1,2-Dichloroethene
ND
4.0
Chloroform
ND
4.9 "
I,LI-Trichloroethane
ND
5_5 "
1,2-Dlchloroethatle(EDC)
ND
4.t "
Benzene
23
3.2
Carbon tetrachloride
ND
6.4 `
Trichloroethene
ND
6.9 "
1,2-Dichloropropene
ND
9.4
Bromodichloromethane
ND
6.8
cis-1,3-Dichloropropene
ND
4.6
4-Methyl-2-pentanone (MIBK)
ND
8.3 ' y
trans-1,3-Dichloropropene
ND
4,6
Toluene
61
1,1,2-Trichloroethane
ND
5.5 `
2-Hexanone (MBK)
ND
8.3 "
Dibromochloromethane
ND
8.6 "
Tetrachloroethene
ND
6-9 `
t,2-Dibromoethane (EDB)
ND
7.8
I,1,1,2-Tetrachloroethane
ND
7.0
Chlorobenzene
ND
4.7 u "
Ethylbenzene
11
4.4
m,p-Xylene
39
8.8
Styrene
ND
4,3 "
o-Xylene
17
4.4
Page 20 of'j,3

H&P Mobile
Geochemistry Inc.
2470 Impala Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fax
PCS Southeast, LLP - Greensboro Project: ECS062917-13
4811 Koger Blvd Project Number: Whitaker Park! Winston Salem Reported.
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallier 10-Jul-17 15:01
Volatile Organic Compounds by EPA TO- 15
H&P Mobile Geochemistry, Inc.
Reporting Dilution
Analyte Result Lirmt Gnits Factor Batch Prepared Analyzed Method Notes
SG-9 (E706111-03) Vapor Sampled: 27-Jun-17 Received: 29•Jun-17
Bromoform
ND
10
ugim3 I ht''tlRII 07-Jul-17 07-Jul-17 EPATO-15
1,1,2,2-Tetrachloroethane
ND
7.0
"
4-Ethyltoluene
5.4
5.0
"
1,3,5-Trimethylbenzene
6.0
5.0
"
1,2,4-Trimethylbenzene
22
5.0
1,3-Dichlorobenzene
ND
12
I4-Dichlorobenzene
ND
12
1,2-Dichlorobenzene
ND
12
1,24-Trichlorobenzene
ND
38
Hexachlorobutadiene
ND
54
Surrogate: 1,2-Dichloroethane-d4
99.1 %
76-134
Surrogate: Toluene-d8
107 %
78-125
Surrogate: 4-Bromofluoroben_ene
105 %
77-1217
SG-10 (E706111-04) Vapor Sampled: 27-Jun-17
Received: 29-Jun-17
Dichlorodifluoromethane (F 12)
ND
5.0
ugim3 I EG71010 07-Jul-11 07-Jul-17 ERA TO.15
Chloromethane
40
2.1
Dichlorotetrafluoroethane(F114)
ND
7.1
Vinyl chloride
ND
2.6
"
Bromomethane
ND
16
"
Chloroethane
ND
8.0
CCichlorofluoromethancIFII
ND
5.6
"
],I-Dichloroethene
ND
4.0
`
1, 1,2-TFichlorotFIfluoroethane (F 113)
ND
7.7
Methylene chloride (Dichloromethane)
ND
3.5
Carbon disulfide
ND
6.3
trans-1,2-Dichloroethene
ND
8.0
4, 1 -Dichloroethane
ND
4.1
"
2-Butanone (MEK)
ND
30
cis-1,2-Dichloroethene
ND
4.0
`
Chloroform
6.3
4.9
"
1.1.1-Trichloroethane
ND
5.5
1,2-Dichloroethane (EDC)
ND
4.1
"
Benzene
4.7
3.2
"
Carbon tetrachloride
ND
6.4
Fichloroethene
ND
5.5
1,2•Dichloropropane
ND
9.4
Page 21 of 3-

H &P Mobile
Geochemistry Inc.
2470 Impala Drive
Carlsbad CA 92010
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast, LLP- Greensboro Project. LCS062917-13
4811 Koger Blvd Project Number Whitaker Park I Winston Salem Reported
Greensboro. NC 27407 Project Manager: Mr. Randy Cavallier 10-Jul-17 15:OT
Volatile Organic Compounds by EPA TO-15
H&P Mobile Geochemistry, Inc.
Reporting Dilution
Analyte Rm It Limit I oo+ Factor Batch Prepared analyzed Method Notes
SG-10 (E706111-04) Vapor Sampled: 27-Jun-17
Received: 29-Jun-17
Bromodichloromethane
ND
6.8
ugim3 I EG71010 07-Jul-17 07-hd-17 EPA TO- I3
cis-1,3-Dichloropropene
ND
4.6
4-Methyl-2-pentanone (MIBK)
ND
8.3
"
trans- l,3-Diehl oropropene
ND
4.6
"
Toluene
20
3.8
1,1,2-Trichloroethane
ND
5.5
"
2-Hexanone (MBK)
ND
8.3
Dibromochloromethane
ND
8.6
" " -
Tetrachloroethene
ND
6.9
"
1,2-Dibromoethane (EDB)
ND
7.8
1, 1, 1,2-Tetrachloroethane
ND
7.0
"
Chlorobenzene
ND
4.7
"
Ethylbenzene
5.3
4.4
"
m,p-Xylene
25
8.8
"
Styrene
ND
4.3
o-Xylene
11
4.4
"
Bromoform
ND
10
"
1,1,2,2-Tetrachloroethane
ND
7.0
4-Ethyltoluene
ND
5.0
"
1,3,5-Trimethylbenzene
6.6
5.0
"
1,2,4-Trimethylbenzene
26
5.0
1.3-Dichlorobenzene
ND
12
"
1,4-Dichlorobenzene
ND
12
"
1,2-Dichlorobenzene
ND
12
1,2,4-Trichlorobenzene
ND
38
Hexachlorobutadiene
ND
54
Surrogate: 1,2-Dichloroethane-d4
97.6 %
76-134 "
Surrogate: Toluene-d8
106 %
78-125 "
Surrogate: 4-Bromo/luorobensene
108 %
77-127 "
Page 22 of'33

H&P Mobile
Geochemistry Inc.
2470 ImpolaDrive
Carlsbad, CA 9201 Q
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast, LLP- Greensboro Project: ECS062917-13
4811 Koger Blvd Project Number. Whitaker Park 1 Winston Salem Reported
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallier 10-Jul-17 15:01
Volatile Organic Compounds by EPA TO-15
H&P Mobile Geochemistry, Inc.
Reporting Dilution
Artalyte
Result
Limit 11111: :.i,It. Batch Prepared
knalyzed v4ethod Notes
SG-11 (E706111-05) Vapor Sampled: 27-Jun-17
Received: 29-Jun-17
Dichlorodifluoromethane (F 12)
ND
5.0 ug m3 I EG71010 07-Jul-17
08-Jul-17 f PA 10-15
Chloromethane
2.5
2.1 "
Dichlorotetrafluoroethane (F 114)
NO
7.1 "
Vinyl chloride
3.1
2.6
"
Bromomethane
ND
16
Chloroethane
ND
8.0
"
Trlchlorofluoromethane(FII)
ND
5.6
1,1-Dichloroethene
ND
4.0 "
1,1,2-Trichlorotrifluoroethane(F113)
ND
7.7
Methylene chloride (Dichloromethane)
ND
3.5 "
Carbon disulfide
ND
6.3
trans-1,2-Dichloroethene
ND
8.0
I,l-Dichloroethane
ND
4.1 "
2-Butanone (MEK)
ND
30
cis-1,2-Dichloroethene
ND
4.0 "
Chloroform
ND
4.9
1, 1, 1 -Trichloroethane
ND
5.5
"
1,2-Dichloroethane (F,DC)
ND
4.1
Benzene
8.1
3.2
Carbon tetrachloride
ND
6.4 "
Trichloroethene
ND
5.5
"
1,2-Dichloropropane
ND
9.4
"
Bromodichloromethane
ND
6.8
"
cis-1,3-Dichloropropene
ND
4.6
4-Methyl-2-pentanone (M[BK)
ND
8-3
trans-1,3•Dichloropropene
ND
4.6
Toluene
14
3.8
1,1,2-Trichloroethane
ND
5.5
"
2-Hexanone(MBK)
ND
8.3
"
Dibromochloromethane
ND
8.6
"
Tetrachloroethene
ND
6.9
L2-Dibromoethane (EDB)
ND
7.8
1, 1, 1,2-Tetrachloroethane
ND
7.0
-
Chlorobenzene
ND
4.7
Ethvlbenzene
ND
4.4
°. '.
m,p-Xylene
11
8.8
Stvrene
ND
4.3
o-Xylene
6.1
4.4
Page 23 of 33

H&P Mobile
Geochemistry Inc.
2470 Impala Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast, L.LP- Greensboro Project: ECS062917-13
4811 Koger Blvd Project Number. Whitaker Park J Winston Salem Reported
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallier 10-Jul-17 I5:01
Volatile Organic Compounds by EPA TO-15
H&F Mobile Geochemistry, Inc.
Reporting Dilution
4nolYlr Result Limit Units Factor Batch Prepared Analyzed Method 'AWN
SG-11 (E706111-05) Vapor
Sampled: 27-Jun-17 Received: 29-Jun-17
Bromoform
ND 10 ug/m3 I I-MY101h (17-lul-J" 08-Jul-17 FPATO- 15
1,1,2,2-Tetrachloroethane
IND 7.0 ^
4-F,thyltoluene
ND 5.0 '
1,3,5-Trimethylbenzene
ND 5.0 `
1,2,4-Trimethylbenzene
15 5.0 "
1,3-Dichlorobenzene
ND 12 "
1,4-Dichlorobenzene
ND 12 "
1,2-Dichlorobenzene
ND 12 "
1,2,4-Trichlorobenzene
ND 38
Hexachlorobutadiene
ND 54
Surrogate: 1,2-Dichloroethane-d4 44.I9:i 76-134 "
Surrogate, Toluene-d8 106 N 78-12-5 "
Surrogate: 4-BromoJluoroben_ene ION °-b 77-127 '
SG-12 (E706111-06) Vapor Sampled: 27-Jun-17 Received: 29-Jun-17
Dichlorodifluoromethane (F 12)
ND
5.0 ughn3 I E937lrtlfl 07-Jul-17 08-Jul-17 FPATO- 15
Chloromethane
4,2
2.1 '
Dichlorotetrafluoroethane (Fl 14)
ND
7.1 '
Vinyl chloride
ND
2.6 "
Bromomethane
ND
16 "
Chloroethane
ND
8.0
Trichlorotluoromethane (F I I I
ND
5.6
IJ-Dichloroethene
ND
4.0
1,1,2-1-richlorotrifluoroethane(F113)
ND
7.7 "
Methylene chloride ('Dichloromethane)
ND
3.5 "
Carbon disulfide
ND
6.3 "
trans-1,2-Dichloroethene
ND
8.0
I,I-Dichloroethane
ND
4.1
2-Butanone (MEK)
ND
30
cis-1,2•Dichloroethene
ND
4.0
Chloroform
ND
4.9 "
I,1,1-Trichloroethane
ND
5.5 "
1,2-Dichloroethane (EDC)
ND
4.1 "
Benzene
5.7
3.2
Carbon tetrachloride
ND
6.4 '
Trichloroethene
ND
5.5
1,2•Dichloropropanc
ND
9.4 "
Page 24 of 33

H&P Mobile
Geochemistry Inc.
2470 Impala Drive
Carlsbad, CA 92010
760-804.9678 Phone
760-804-9159 Fax
ECS Southeast, UP- Greensboro Project' ECS062917-13
4811 Koger Blvd. Project Number Whitaker Park / Winston Salem Reported
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallier 10-Jul-17 15:O1
Volatile Organic Compounds by EPA TO-15
H&P Mobile Geochemistry, Inc.
Reporting Ddution
Analyto Result Limit [:nits Factor Hatch Prepared Analyzed Method Notes
SG-12 (E706111-06) Vapor Sampled: 27-Jun-17 Received: 29-Jun-17
Bromodichloromethane
ND
6.8 ugim3 I FG71010 07-Jul-11 08-Jul-17 EPA I'0-15
cis- 1,3-Dichloropropene
ND
4.6 "
4-Methyl-2-pentanone (MIBK)
ND
8.3 "
trans-1,3-Dichloropropene
ND
4.6 '
Toluene
32
3.8 "
1,12-Trichloroethane
ND
5.5 "
2-Hexnnone (MBK)
ND
8.3 "
Dibrotnochloromethane
ND
8 6
Tetrachloroethene
ND
6.9
1,2-Dibromoethane (EDB)
ND
7.8 '
171,1,2-Tetrachloroethane
ND
7.0 "
Chlotobenzene
ND
4.7 "
Ethylbenzene
ND
4.4 "
m,p-Xylene
18
8.8 "
Styrene
ND
4.3 "
o-Xylene
8.2
4.4
Bromotbrm
ND
10 "
I.1,2,2.1'etrachloroethane
ND
7.0 "
4-Ethyltoluene
ND
5.0 "
1,3,5-Trimethylbenzene
ND
5.0
1,2,4-Trimethylbenzene
11
5.0 "
1,3-Dichlorobenzene
ND
12
1,4-Dichlorobenzene
ND
12
1,2-Dichlorobenzene
ND
12 "
1,2,4-Trichlorobenzene
ND
38 "
Hexachlorobutadiene
ND
54 "
Surrogate: 1,2-Dichloroethane-d4
%19 % 76.134 '
Surrogate: Toluene-d8
U1' % 78-125 '
Surrogate: 4-Bromofluoroben_ene
107 % 77-127 '
Page 25 of 33

H&P Mobile
Geochemistry Inc.
2470 Impala Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast, LLP- Greensboro Project ECS062917-13
4811 Koger Blvd Project Number Whitaker Park J Winston Salem Reported:
Greensboro, NC 27407 Project Manager. Mr. Randy Cavallier 10•Jul-17 15:01
Volatile Organic Compounds by EPA TO-15
H&P Mobile Geochemistry, Inc.
Reporting Dilution
[Arialyte Result Limit Cnits Factor Balch Prepared Analyzed \,Ietliod \otes
DUP-601 (E706111-07) Vapor Sampled: 27-Jun-17 Received: 29-Jun-17
Dichlorodifluoromethane (F 12)
ND
5.0 ug/m3 L EG71010 07-Jul-17 (3-JukLEP,ATO-15
Chloromethane
25
2.1 "
Dichlorotetrafluoroethane (F 114)
ND
7.1
Vinyl chloride
ND
2.6
Bromomethane
ND
16
Chloroethane
ND
8.0
Trichlorofluoromethane (F 11)
ND
5.6
1, 1 -Dichloroethene
ND
4.0
1, 1,2-Trichlorotrifluoroethane (F 113)
ND
7.7
Methylene chloride (Dichloromethane)
ND
3.5 "
Carbon disulfide
ND
6.3
trans-1,2-Dichloroethene
ND
8.0 "
I, 1•Dichloroethane
ND
4.1
2-Butanone (MF,K)
ND
30
cis-1,2-Dichloroethene
ND
4.0
Chloroform
ND
4.9
1, 1, 1 -Trichloroethane
ND
5.5 "
1,2-Dichloroethane (EDC)
ND
4.1
Benzene
21
3.2 "
Carbon tetrachloride
ND
6.4 "
Trichloroetheue
ND
5.5 "
1,2-Dichloropropane
ND
9.4 "
Bromodichloromethane
ND
6.8
cis-1,3-Dichloropropene
ND
4.6 `
4-Methyl-2-pentanone (MIBK)
ND
8.3 '
trans-1,3-Dichloropropene
ND
4.6
Toluene
4.8
3.8 "
1,1,2-Trichloroethane
ND
5.5
2-Hexanone (MBK)
ND
8.3 "
Dibromochloromethane
ND
8.6 '
Tetrachloroethene
ND
6.9 `
1,2-Dibromoethane (EDB)
ND
7.8 '
1,1,1,2-Tetrachloroethane
ND
7.0
Chlorobenzene
ND
4.7
Ethylbertzene
ND
4.4 "
m,p-Xylene
ND
8.8
Stvrene
ND
4.3 "
o-Xylene
5.4
4.4 '
Page 26 of33

H&P Mobile
Geochemistry Inc.
2470Impala Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9 4 59 Fax
ECS Southeast, LLP- Greensboro Project- ECS062917-13
4811 Koger Blvd Project Number Whitaker Park / Winston Salem Reported.
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallier 10-Jul-17 15:01
Volatile Organic Compounds by EPA TO-15
H&P Mobile Geochemistry, Inc.
Reporting Dilution
,4�lytp Result Limit 11615 Farsk Batch Prepared Analyzed Metliod Notes
DGP-601 (E706111-07) Vapor Sampled: 27-Jun-17 Received: 29-Jun-17
Bromoform
ND
10
ug'm3 I EG71Q117 07-Jul-17 08-Jul-17 EPATO-15
1,1,2,2-Tetrachloroethane
ND
7.0
"
4-Ethyltoluene
ND
5.0
"
1,3,5-Trimethylbenzene
ND
5.0
"
1,2,4-Trimethylbenzene
11
5.0
"
1,3-Dichlorobenzene
ND
12
"
1,4-Dichlorobenzene
ND
12
'
1,2-Dichlorobenzene
ND
12
"
1,2,4-Trichlorobenzene
ND
38
'
Hexachlorobutadiene
ND
54
Surrogate- 1.2-Dichlat-vethane-d4
0.0 %
76-134
Surrogate: Toluene-&
Jiff %
78-125 "
.Surrogate: 4-Bromofluorobencene
1191 %
77-127 '
DUP-605 (E706111-08) Vapor Sampled: 27-Jun-17
Received:
29-Jun-17
Dichlorodifluoromethane (F12)
ND
5.0 ugim3
Chloromethane
33
2.1
Dichlorotetrafluoroethane (Fi 14)
ND
7.1
Vinyi chloride
ND
2.6
Bromomethane
ND
16
Chloroethane
10
8.0
Trichlorotluoromethane (F 11)
ND
5.6
IA-Dichloroethene
ND
4.0
1,1,2-Trichlorotrifluoroethane (F113)
ND
7.7
Methylene chloride (Dichloromethane)
ND
3.5
Carbon disulfide
12
6.3
trans-1,2-Dichloroethene
ND
8.0
1, 1 -Dichloroethane
ND
4.1
2-Butanone (MEK)
ND
30
cis- 1,2-Dichloroethene
ND
4.0
Chloroform
ND
4.9
I,I,I-Trichloroethane
ND
5.5 "
1,2-Dichloroethane (EDC)
ND
4.1
Benzene
14
3.2
Carbon tetrachloride
ND
6.4
Trichloroethene
ND
5.5
1,2-Dichloropropane
ND
9.4
I EG71010 07-Jul-17 08-Jul-17 EPA to-15
Page 27 ol'3 3

H&P Mobile
Geochemistry Inc.
ECS Southeast. LLP - Greensboro
4811 Koger Blvd.
Greensboro, NC 27407
Project ECS062917-13
Project Number: Whitaker Park / Winston Salem
Project Manager: Mr. Randy Cavallier
Volatile Organic Compounds by EPA TO-15
2470Impala Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fax
Reported
10-Jul-17 15:01
H&P Mobile Geochemistry, Inc.
Reporting Dilution
nalyte Result luui Units I]clnl Batch Prepared Analyzed Method Note:
DUP-605 (E706111-08) Vapor
Sampled: 27-Jun-17 Received: 29-Jun-17
Bromodichloromethane
ND
6.8 ugim3 ! EG71010 07-Jul-17 08-Jul-17 FP_>\TO-IS
cis-1,3•Dichloropropene
ND
4.6
4-Methyl-2-pentanone (MIBK)
ND
8.3 "
trans-1,3-Dichloropropene
ND
4.6
Toluene
33
3.8 "
1,1,2-Trichloroethane
ND
5.5 '
2-Hexanone (MBK)
ND
8.3
Dibromochloromethane
NO
8.6 "
Tetrachlomethene
NQ
6.9
1,2-Dibromoethane(EDB)
IND
7.8 " '
1, 1, 1,2-Tetrachloroethane
NO
7.0
Chlorobenzene
NO
4.7
Ethylbenzene
ND
4.4 "
m,p Xylene
14
8.8 "
Styrene
ND
4.3 "
o-Xylene
5.6
4.4 "
Bromoform
ND
10 "
1,1,2,2-'Tetrachloroethane
NO
7.0
4-Ethyltoluene
ND
5.0
1,3,5-Trimethyl benzene
ND
5.0
1,2,4-Trimethylbenzene
9.0
5.0
1,3-Dichlorobenzene
ND
12 "
1,4-Dichlorobenzene
NO
12 "
1,2-Dichlorobenzene
ND
12 `
1,2,4-Trichlorobenzene
ND
38
Hexachlorobutadiene
ND
54 '
Surrogate: 1,2-Drchloroethane-d4 96.9 0 76-134 '
Surrogate: loluene-d8 102 % 78-125
Surrogate: 4-Bromofluorobenrene 10 % 77-127 '
Page 28 of 33

H&P Mobile
Geochemistry Inc.
2470 Impala Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast, LLP- Greensboro Project: ECS071317-11
4811 Koger Blvd- Project Number: Whitaker Park Reported.
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallter 26-Jul-17 13 11
Volatile Organic Compounds by EPA TO-15
H&P Mobile Geochemistry, Inc.
Reporting Dilution
malyte Result Limit I ind% Factor Batch Prepared Analyzed Madtod Notes
SG-13 (E707053-01) Vapor Sampled: 05-Jul-17 Received: 13-Jul-17
Dichlorodifluoromethane(F12)
47
5.0 ug/m3 I F,G72412 24-Jul-17 24-Jul-17 FPATO-15
Chloromethane
2.7
2.1 "
Dichlorotetrafluoroethane (F 114)
ND
T1 "
Vinyl chloride
ND
2.6
Bromomethane
ND
16 "
Chloroethane
ND
8.0 "
Trichlorofluoromethane (F11)
210
5.6 "
1,1-Dichloroethene
ND
4.0 "
1,1,2-"Crichlorotrifluoroethane(F113)
ND
7.7
Methylene chloride (Dichloromethane)
ND
3.5 "
Carbon disulfide
14
6.3
trans-1,2•Dichloroethene
ND
8.0 "
I,I-Dichloroethene
ND
4.1 "
2-Butanone (MEK)
ND
30
cis-1,2-Dichloroethene
ND
4.0
Chloroform
ND
4.9 "
I,1,1-Trichloroethane
ND
5.5 "
1,2-Dichloroethane(EDC)
ND
4.1 "
Benzene
6.3
3.2 "
Carbon tetrachloride
ND
6.4
Trichloroethane
ND
5.5 "
1,2-Dichloropropane
ND
9.4
Bromodichloromethane
ND
6.8 "
cis-1,3-Dichloropropene
ND
4.6 "
4-Methyl-2-pentanone(MIBK)
ND
8.3 "
trans-1,3-Dichloropropene
ND
4.6 "
Toluene
13
3.8 "
1,1,2-Trichloroethane
ND
5.5 "
2-Hexanone(MBK)
ND
8.3 "
Dibromochloromethane
ND
8"6 "
Tetrachloroethene
190
6.9
1,2-Dibromoethane (EDB)
ND
7.8
1, 1, 1,2-Tetrachloroethane
ND
7.0
Chlorobertzene
ND
4.7 "
Ethylbenzene
ND
4.4
m,p-Xvlene
8.8
8.8 "
Styrene
ND
4.3 "
o-Xylene
5.0
4.4 "
Page 6ot30

H&P Mobile
Geochemistry Inc.
2470Impala Drive
Carlsbad, CA 920W
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast, LLP - Greensboro Project. PCS071317-11
4811 Koger Blvd Project Number: Whitaker Park Reported:
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallier 26-Jul-17 13:11
Volatile Organic Compounds by EPA TO-15
H&P Mobile Geochemistry, Inc.
Reporting Dilution
Analyte Result Limit knits Factor Batch prepared Analyzed Mtthod Votes
SG-13 (E707053-01) Vapor Sampled: 05-Jul-17
Received: 13-Jul-17
Bromoform
ND
10 ugim3 I F1i71112 24•Jul-II 24-Jul-17 EPATO-I5
1,1,2,2-Tetrachloroethane
ND
7.0
4-Ethyltoluene
ND
5.0 `
1,3,5-Trimethyl benzene
ND
5.0 "
1,2,4-Trimethylbenzene
9.9
5.0 "
1.3-Dichlorobenzene
ND
12
1,4-Dichlorobenzene
ND
12 '
12-Dichlorobenzene
ND
12
1,24-Trichlorobenzene
ND
38
Hexachlorobutadiene
ND
54
Surrogate: 1,2-Dichloroethane-d4
%-6-1;J4
Surrogate: Toluene-d8
Surrogate: 4-Bromofluoroben ene
Y. " %
SG-14 (E707053-02) Vapor Sampled: 05-Jul-17
Received: 13-Jul-17
Dichlorodifluoromethane (F12)
64
5.0 ug;nO t 4 1 iT-J 12 24-Jul-17 24-Jul-17 ERA F0-15
Chloromethane
5.2
2.1
Dichlorotetratluoroethane(F114)
ND
7.1
Viavl chloride
ND
2.6 "
Bromomethane
ND
16 "
Chloroethane
ND
8.0 "
Trichlorofluoromethane (F11)
32
5.6 "
1, 1 -Dichloroethene
ND
4.0 "
1, 1,2-Trichlorotrifluoroethane (F 113)
ND
7.7
Methylene chloride (Diehloromethanc)
ND
3.5
Carbon disulfide
12
6.3
trans-1,2-Dichloroethene
ND
8.0
1, 1 -Dichloroethane
ND
4.1
2-Butanone (MEK)
740
30
cis-1,2-Dichloroethene
ND
4.0
Chloroform
ND
4.9
1. 1. 1 -Trichloroethane
ND
5.5
1,2-Dichloroethane (EDC)
ND
4.1
Benzene
7.8
3.2 '
Carbon tetrachloride
ND
6.4 '
Trichloroethene
ND
5.5 `
1,2-Dichloropropane
ND
9.4 `
Page 7 of 30

H&P Mobile
Geochemistry Inc.
2470Impala DAve
Carlsbad, CA 92010
760-804-9678 Phone
760.804.9159 Fax
ECS Southeast, LIT - Greensboro Project: ECS071317-11
4811 Koger Blvd. Project Number: Whitaker Park Reported
Greensboro, NC 27407 Project Manager_ Mr. Randy Cavallier 26-Jul-17 13:11
Volatile Organic Compounds by EPA TO-15
H&P Mobile Geochemistry, Inc.
Reporting Dilution
Analyte Result Limit Cnits Factor Batch Prepared Analyzed 'vlethod Notes
SG-14 (E707053-02) Vapor Sampled: 05-Jul-17
Received: 13-Jul-17
Bromodichloromethane
IND
6.8
ugim3 I EG72412 24-Jul-17 24-Jul-17 EPATO- 15
cis-1,3-Dichloropropene
ND
4.6
`
4-Methyl-2-pentanone (MIBK)
ND
8.3
`
trans-1,3-Dichloropropene
ND
4.6
Toluene
17
3.8
"
1,1,2-Trichloroethane
ND
5.5
2-Hexanone (MBK)
32
8.3
"
Dibromochloromethane
ND
8.6
"
Tetrachloroethene
30
6.9
"
1,2-Dibromoethane (EDB)
ND
7.8
1, 1, 1,2-Tetrachloroethane
ND
7.0
'
Chlorobenzene
ND
4.7
"
Ethylbenzene
ND
4.4
"
m,p-Xylene
12
8.8
"
Styrene
ND
4.3
"
o-Xylene
7.6
4.4
"
Bromoform
ND
10
"
1,1,2,2-Tetrachloroethane
ND
7.0
4-Ethyltoluene
ND
5.0
'
1,3,5-Trimethylbenzene
ND
5.0
'
1,2,4-Trimethylbenzene
11
5.0
1,3-Dichlorobenzene
ND
12
1,4-Dichlorobenzene
ND
12
1,2-Dichlorobenzene
ND
12
"
1,2,4-Trichlorobenzene
ND
38
Hexachlorobutadiene
ND
�I
"
Surrogate: 1,2-Dichloroethane-d4
96.6 %
76-134 "
Surrogate. Toluene-d8
102 %
78-125 '
Surrogate: 4-Brornofluorobencene
94.2 %
77-1.27 "
Pap 8 01,30

H&P Mobile
Geochemistry Inc.
2470 Impala Drive
Ca(tsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast, UP - Greensboro Project: ECS071317-11
4811 Koger Blvd Project Number: Whitaker Park Reported
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallier 26-Jul-17 13:11
Volatile Organic Compounds by EPA TO-15
H&P Mobile Geochemistry, Inc.
Reporting Dilution
Analyte Result nnit Gnits Factor Batch Prepared Analyzed Method Not
SG-15 (E707053-03) Vapor Sampled: 05-Jul-17
Received: 13-Jul-17
Dichlorodifluoromethane (F12)
27
10 ugim3 EG72412 24-Jul-17 24-Jul-17 F.PATO-I5
Chloromethane
ND
4.1
Dichlorotetrafl uoroethane (F 114)
ND
14
Vinyl chloride
ND
5.2
Bromomethane
ND
32
Chloroethane
ND
16 '
Trichlorofluoromethane(F11)
ND
11
1,1-Dichloroethene
ND
8.0
1, 1,2-Trichlorotrifluoroethane (F 1131
ND
15
Methylene chloride (Dichloromethanel
ND
7.1
Carbon disulfide
ND
13
trans- l,2- Diehl oroethene
ND
16 "
1, 1 -Dichloroethane
ND
8.2
2-Butanone (MEK)
ND
60 "
cis-1,2-Dichloroethene
ND
8.0 "
Chlornforrn
ND
9.9
1, 1, 1 -Trichloroethane
ND
11
1,2-Dichloroethane (eDC)
ND
8.2 "
Benzene
8.9
6.5
Carbon tetrachloride
ND
13
Trichloroethene
ND
11
1,2-Dichloropropane
ND
19 '
Bromodichloromethane
ND
14
cis-1,3-Dichloropropene
ND
9.2
4-Methyl-2-pentanone (MIBK)
ND
17 '
trans-1,3-Dichloropropene
ND
9.2
Toluene
98
7.6 "
1,1,2-Trichloroethane
ND
11
2-Hexanone(MBK)
ND
17 "
Dibromochloromethane
ND
17 -
Tetrachloroethene
65
14
1,2-Dibromoethane (1;DB)
ND
16 "
1,1,1,2-Tetrachloroethane
ND
14
Chlorobenzene
ND
9.4
Ethylbenzene
1500
8.8 "
m,p-Xvlene
3100
18 "
Styrene
ND
8.6
o-Xylene
1400
8.8 '
Page 9 of 30

H&P Mobile
Geochemistry Inc.
2470 Impala Drive
Carlsbad, CA 92010'
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast, LLP - Greensboro Project: ECS071317-11
4811 Koger Blvd Project Number: Whitaker Park Reported:
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallier 26-Jul-17 13:11
Volatile Organic Compounds by EPA TO-15
H&P Mobile Geochemistry, Inc.
Reporting Dilution
malyte Result Limit 1:n1ts I, nil* Bar& Prepared Analyzed Method Notes
SG-15 (E707053-03) Vapor
Sampled: 05-Jul-17 Received: 13-Jul-17
Bromoform
ND
21 ug/m3 EG72412 24-Jul-17 24-Jul-17 FTATO- 15
1,1,2,2-Tetrachloroethane
ND
14
4-Ethyltoluene
ND
10 '
1,3,5-TrimethyIbenzene
ND
10
1,2,4-Trimethylbenzene
14
10 '
1,3-Dichlorobenzene
ND
24
1,4-Dichlorobenzene
ND
24 '
1,2-Dichlorobenzene
ND
24
1,2,4-Trichlorobenzene
ND
75 '
Hexachlorobutadiene
ND
110
Surrogate: 1,2-Dichloroethane-,14
'+5. d 76-134 "
Surrogate: Toluene-&
�y..' " 78-12.5 '
Surrogate: 4-Bromofluoroberr ene
1r7.') "• 77-127 "
SG-16 (E707053-04) Vapor Sampled: 05-Jul-17
Received: 13-Jul-17
Dichlorodifluoromethane (F12)
35
10 ug/m3 I EG72412 24-Jul-17 24-Jul-17 ERA TO- 13
Chloromethane
ND
4.1
Dichlorotetrafluoroethane (F 114)
ND
14 `
Vinvl chloride
ND
5.2
Bromomethane
ND
32
Chloroethane
ND
16
Trichlorofluoromethane (Fll)
32
11
1-1-Dichloroethene
ND
8.0
I,1,2-Trichlorotrifluoroethane(f113)
ND
15 '
Methylene chloride (Dichloromethanc)
ND
7.1
Carbon disulfide
22
13
ifam-I 7-11chhirm1hunc
ND
16
1,l-Dichloroethane
ND
8-2 '
2-Butanone (MEK)
ND
60 '
cis-1,2-Dichloroethene
ND
8.0 " R
Chloroform
ND
9.9 '
I.I.1-Trichloroethane
ND
11
1,2-Dichloroethane (EDC)
ND
8.2
Benzene
ND
6.5
Carbon tetrachloride
ND
13
Trichloroethene
ND
11
1,2-Dichloropropane
ND
19
Page 10 of 30

H&P Mobile
Geochemistry Inc.
2470Impala Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast, LLP- Greensboro Project: ECS071317.11
4811 Koger Blvd Project Number. Whitaker Park Reported
Greensboro, NC 27407 Project Manager Mr. Randy Cavallier 26-Jul-17 13.11
Volatile Organic Compounds by EPA TO-15
H&F Mobile Geochemistry, Inc.
Reporting Dilution
Analyte Result Limit (;nits Factor Batch Prepared Analyzed Method Notes
SG-16 (E707053-04) Vapor Sampled: 05-Jul-17 Received: 13-Jul-17
Brom od ich I oromethane
ND
14 ugtm3 3 EG72412 24-Jul-17 24-Jul-17 EPATO-15
cis-1,3-Dichloropropene
ND
9.2 "
4-Methyl-2-pentanone (MIBK)
ND
17 "
trans-1,3-Dichloropropene
ND
92 "
Toluene
37
7.6 "
1,1,2-Trichloroethane
ND
11 '
2-Hexanone (MBK)
ND
17 "
Dibromochloromethane
ND
17 ^
Tetrachloroethene
140
14 '
1,2-Dibromoethane (EDB)
ND
16
1,1,1,2-Tetrachloroethane
ND
14 "
Chlorobenzene
ND
9.4 "
Ethylbenzene
940
8-8 "
m,p-Xylene
3600
18 '
Styrene
ND
8.6
o-Xylene
1400
8.8 "
Bromoform
ND
21 "
1,1,2,2-Tetrachloroethane
ND
14 "
4-Ethyltoluene
25
10 '
1,3,5-Trimethylbenzene
20
10
1,2,4-Trimethylbenzene
34
10 '
13-Dichlorobenzene
ND
24 "
1,4-Dichlorobenzene
ND
24 "
12-Dichlorobenzene
ND
24 "
1,2,4-'Fichlorobenzene
ND
75 '
Hexachlorobutadiene
ND
110
Surrogate: 1,2-Dichloroethane-d4
99.6 % 76-134 "
Surrogate: 7oluene-d8
95.9 So 78-125 "
Surrogate: 4-Bromof7uoroben_eue
99.1 °/a 77-127 '
Page l l of 30

H&P Mobile
Geochemistry Inc.
24701mpala Drive
Carlsbad, CA 92010
760-804.9678 Phone
760-804-9159 Fax
FCS Southeast, LLP - Greensboro Project: ECS071317-11
4811 Koger Blvd Project Number: Whitaker Park Reported.
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallier 26-Jul-17 13:11
Volatile Organic Compounds by EPA TO- 15
H&P Mobile Geochemistry, Inc.
Reporting Dilution
Analyze H.'wlip t mw Units Factor Batch Prepared Analyzed Method Botts
SG-17 (E707053-05) Vapor Sampled: 06-Jul-17 Received: 13-Jul-17
Dichlorodifluoromethane(Fl2)
9.0
5.0 ugim3 I EG72412 24-Jul-17 24-Jul-17 EPAI'0-15
Chloromethane
ND
2.1
Dichlorotetratluoroethane(F114)
ND
7.1 "
Vinyl chloride
ND
2.6 "
Bromomethane
ND
16
Chloroethane
ND
8.0 "
Trichlorofluoromethane (Fll)
57
5.6 "
1, 1 -Dichloroethene
ND
4.0 "
1,1,2-Trichlorotritluoroethane(F113)
ND
7.7 "
Methylene chloride (Dichloromethane)
ND
3.5 "
Carbon disulfide
17
6.3 "
trans-1,2-Dichloroethene
ND
8.0
1,1-Dichloroethane
ND
4.1 '
2-Butanone (MEK)
ND
30
cis- 1,2- Diehl oroethene
ND
4.0
Chloroform
ND
4.9
1, 1, 1 -Trichloroethane
ND
5.5 '
1,2-Dichloroethane (EDC)
ND
4.1
Benzene
ND
3.2
Carbon tetrachloride
ND
6.4 "
Trichloroethene
ND
5.5 "
1,2-Dichloropropane
ND
9.4
Bromodichloromethane
ND
6.8
cis-1,3-Dichloropropene
ND
4.6
4-Methyl-2-pentanone (MIBK)
ND
8.3
trans-1,3-Dichloropropene
ND
4.6 '
Toluene
19
3.8 "
1,1,2-Trichloroethane
ND
5.5 "
2-Hexanone (MBK)
ND
8.3 '
Dibromochloromethane
ND
8.6
letrachloroethene
ND
6.9
1,2-Dibromoethane (EDB)
ND
7.8
I,I-1,2-Tetrachloroethane
ND
7.0
Chlorobenzene
ND
4.7 '
F,thylbenzene
ND
4.4 "
m,p-Xylene
13
8.8 '
Styrene
ND
4.3
o-Xylene
4.9
4.4 '
Page 12 of 30

H&P Mobile
Geochemistry Inc.
2470Impala Drive
Carlsbad, CA 92010
7.60-804-9678 Phone
760-804-9159 Fax
F,CS Southeast, LLP• Greensboro Project ECS071317-11
4811 Koger Blvd. Project Number: Whitaker Park Reported:
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallier 26-Jul-17 13_ It
Volatile Organic Compounds by LYA 10-1.�
H&P Mobile Geochemistry, Inc.
Reporting Dilution
Result Limit t nits hrakw 1301ch Prepared Analyzed Method Notes
SG-17 (E707053-05) Vapor Sampled: 06-Jul-17 Received: 13-Jul-17
Bromoform
ND
10 ugtm3 I EG72412 24-Jul-17 24-Jul-17 EPA. TO-15
1,1,2,2-Tetrachloroethane
ND
TO -
4-Ethyltoluene
ND
5.0
1,3,5-Trimethylbenzene
ND
5.0
1,2,4-Trimethylbenzene
5.7
5.0 -
1,3-Dichlorobenzene
ND
12
1,4-Dichlorobenzene
ND
12
1,2-Dichlorobenzene
ND
12
1,2,4-1'richlorobenzene
ND
38
Hexachlorobutadiene
ND
554 _
Surrogate: 1,2-Dichloroethane-d4
97.5 % 76-134 -
Surrogate: Toluene -dB
100 % 78-125 '
Surrogate: 4-Bromofluorobenrene
98.1 % 77-127 -
SG-18 (E707053-06) Vapor Sampled: 06-Jul-17 Received: 13-Jul-17
Dichlorodifl uoromethane (F 12)
NJ:)
10 ug/m3 2 EG72412 24-Jul-17 25-Jul-17 EPATO-15
Chloromethane
ND
4.1
Dichlorotetrafluoroethane IF t 14)
ND
14 -
Vinyl chloride
ND
5.2 n -
Bromomethane
ND
32
Chloroethane
ND
16
Trichlorofluoromethane (Fl1)
250
11 -
1,1-Dichloroethene
ND
8.0
1, 1,2-Trichlorotrifluoroethane (F 113)
ND
15
Methylene chloride (Dichloromethane)
ND
7.1
Carbon disulfide
13
13
trans-1,2-Dichloroethene
ND
16
1, 1 -Dichloroethane
ND
8.2
2-Butanone (MEK)
ND
60
cis-1,2-Dichloroethene
ND
8.0 -
Chloroform
ND
9.9 " -
1.1 -l-Trichloroethane
ND
11 -
1,2-Dichloroethane (F.DC)
ND
8.2
Benzene
ND
6.5
Carbon tetrachloride
ND
13
Trichloroethene
ND
11
1,2-Dichloropropane
ND
19
Page 13 of30

H&P Mobile
Geochemistry Inc.
2470Impala Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fox
ECS Southeast, LLP- Greensboro Project: ECS071317-11
4811 Koger Blvd ProjectNumber Whitaker Park Reported
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallier 26-Jul-17 13.11
Volatile Organic Compounds by EPA TO-15
H&P Mobile Geochemistry, Inc.
11%natyte
Reporting Dilution
Result
Limit Factor Batch Prepared analyzed Method votes
mit I.
SG-18 (E707053-06) Vapor Sampled: 06-Jul-17
Received: 13-Jul-17
Bromodichloromethane
ND
14 ug/m3 EG72412 24-Jul-17 25-Jul-17 EPA "1'0-15
cis-1,3-Dichloropropene
ND
9.2 '
4-Methyl-2-pentanone ('MIBK)
ND
17 "
trans-1,3-Dichloropropene
ND
9.2 "
Toluene
12
7.6 "
1,1,2-Trichloroethane
ND
11 "
2-Hexanone (MBK)
ND
17 "
Dibromochloromethane
ND
17
Tetrachloroethene
3800
14
1,2-Dibromoethane (EDB)
ND
16 "
1,1,1,2-Tetrachloroethane
ND
14 "
Chlorobenzene
ND
9.4 "
Ethylbenzene
ND
8.8 "
m,p-Xylene
NCi
18 "
Styrene
ND
8.6 "
o-Xylene
ND
8.8 "
Brornoform
ND
21 "
1, 1,2,2- retrachloroethane
ND
14 "
4-Ethyltoluene
ND
10 "
1,3,5-Trimethylbenzene
ND
10 "
1,2,4-Trimethylbenzene
ND
10
1,3-Dichlorobenzene
ND
24 "
1,4-Dichlorobenzene
ND
24 "
1,2-Dichlorobenzene
ND
24
1,2,4-1'richlorobenzene
ND
75
Hexachlorobutadiene
ND
110 "
Surrogate: 1,2-Dichloroethane-d4
Wf6r % 76-134 '
Surrogate. Toluene-d8
fP- % P8-125 "
Surrogate: 4-Bromofluorobencene
4{..1 % 77-127 '
Page 14 of 30

H&P Mobile
Geochemistry Inc.
2470 Impala Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast LLP- Greensboro Project: ECS071317-11
4811 Koger Blvd Project Number: Whitaker Park Reported
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallier 26-Jul-17 t3 11
Volatile Organic Compounds by EPA TO-15
H&P Mobile Geochemistry, Inc.
Reporting Dilution
Analyte Result Limit I nip. Factor Batch Prepared Analyzed Method Noocs
SG-19 (E707O53-07) Vapor Sampled: 06-Jul-17
Received: 13-Jul-17
Dichlorodifluoromethane (F12)
ND
25 ug/m3 'S EG72412 24-Jul-17 25-Jul-17 LTA 10.15
Chloromethane
ND
10 "
Dichlorotetrafluoroethane (F114)
ND
35 "
Vinyl chloride
ND
13
Bromomethane
ND
79
Chloroethane
ND
40
TrichloroFluoromethane (Fll)
9700
28
I_I-Dichloroethene
ND
20
1, 1,2-Trichlorotrifluoroethane (F 113)
ND
39 "
Methylene chloride (DichIoromethane)
ND
18 '
Carbon disulfide
32
32
trans-1,2-Dichloroethene
ND
40 "
1, 1 -Dichloroethane
ND
21
2-Butanone (MEK)
ND
150
cis-1,2-Dichloroethene
ND
20
Chloroform
ND
25 "
1 _ I _ I =Trichloroethane
ND
28
1,2-Dichloroethane (EDC)
ND
21
Benzene
ND
16
Carbon tetrachloride
ND
32
richloroethene
ND
27 "
1,2-Dichloropropane
ND
47
Bromodichloromethane
ND
34
cis-1,3-Dichloropropene
ND
23
4-Methyl-2-pentanone (MIBK)
ND
41
trans-t,3-Dichloropropene
ND
23
Toluene
77
19
1,1,2-Trichloroethane
ND
28
2-Hexanone(MBK)
ND
41
Dibromochloromethane
ND
43
Tetrachloroethene
2600
3'l
1,2-Dibromoethane (EDB)
ND
39
1, 1, 1,2-Tetrachloroethane
ND
35
Chlorobenzene
ND
23
Fthylbenzene
ND
m,p-Xylene
53
4d
Styrene
ND
22
o-Xvlene
ND
22
Page 15 of30

H&P Mobile
Geochemistry Inc.
2470Impala Orive
Carlsbad, CA 92010
760-804-9678 Phons
760-804-9159 Fax
CS Southeast, UP - Greensboro Project: FCS071317-11
S 11 Koger Blvd Project Number: Whitaker Park Reported
reensboro, NC 274,07 Project Manager: Mr. Randy Cavallier 26-Jul-17 13:11
Volatile Organic Compounds by EPA TO-15
H&P Mobile Geochemistry, Inc.
Reporting Dilution
Lralyte Result omit I wl, Factor Batch Prepared Analyzed Method ;
SG-19 (E707053-07) Vapor Sampled: 06-Jul-17 Received: 13-Jul-17
Bromoform
ND
52
ugim3 S EG72412 24-Jul-17 25-JLJ-17 EPATO-IS
1,1,2,2-Tetrachloroethane
ND
35
"
4•Ethyltoluene
ND
25
"
1,3,5-Trimethylbenzene
ND
25
'
1,2,4-Trimethylbenzene
ND
25
1,3-Dichlorobenzene
ND
61
'
1,4-Dichlorobenzene
ND
61
'
1,2-Dichlorobenzene
ND
61
"
1,2,4-Trichlorobenzene
ND
190
"
Huxachlorobutadiene
ND
270
"
Surrogate. 1,2-Dichloroethane-d4
101 %
76-134
Surrogate: Toluene-d8
103 %
78-125
Surrogate. 4-BromgJluorobenmene
94.7 %
77-127
SG-20 (E707053-08) Vapor Sampled: 06-Jul-17
Received: 13-Jul-17
Dichlorodifluoromethane (F 12)
ND
10
ugim3 EG72412 24-Jul-17 25-Jul-17 EPATO-15
Chloromethane
ND
4.1
Dichlorotetrafluoroethane (F114)
ND
14
Vinyl chloride
ND
5.2
"
Bromomethane
ND
32
Chloroethane
ND
16
'I'richlorofluoromethane (FII)
9200
28
'
I,1-Dichloroethene
ND
8.0
1, 1,2-Trichlorotrifluoroethane (F 113)
ND
15
"
Methylene chloride (Dichloromethanc)
ND
7.1
Carbon disulfide
ND
13
"
trans-1,2-Dichloroethene
ND
16
1, 1 -Dichloroethane
ND
8.2
2-Butanone (YIEK)
95
60
cis-1,2-Dichloroethene
ND
8.0
'
Chloroform
ND
9.9
1,171-Trichloroethane
ND
II
J
1,2-Dichloroethane (EDC)
ND
8.2
'
Benzene
ND
6.5
"
Carbon tetrachloride
ND
13
"
Trichloroethene
ND
'
1,2-Dichloropropane
ND
19
'
Page 16 of 30

H&P Mobile
Geochemistry Inc.
2470 Impala Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast, LLP- Greensboro Project: ECS071317-11
4811 Koger Blvd. Project Number: Whitaker Park Reported:
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallier 26-Jul-17 13:1 1
Volatile Organic Compounds by EPA TO-15
H&P Mobile Geochemistr , Inc.
Reporting Dilution
Analyte 1L-'nuft Limit 1 uu. Factor Batch Prepared Analyzed ytethod Notes
SG-20 (E707053-08) Vapor Sampled: 06-Jul-17 ReceiJed: 13-Jul-17
Bromodichloromethane
ND
14
ugim3 r EG72412 24-Jul-17 25-Jul-17 1:%S.-r+1-1}
cis-1,3-Dichloropropene
ND
9.2
4-Methyl-2-pentanone (MIBK)
ND
17
trans-1,3-Dichloropropene
ND
9.2
'
Toluene
24
7.6
"
1,1,2-Trichloroethane
ND
11
2-Hexanone (MBK)
ND
17
"
Dibromochloromethane
ND
17
"
Tetrachloroethene
5100
_IJ
g
1,2-Dibromoethane (EDB)
ND
16
2 "
1, 1, 1,2-Tetrachloroethane
ND
14
Chlorobenzene
ND
9.4'
Ethylbenzene
ND
8.8
"
m,p-Xylene
ND
18
Styrene
ND
8"6
"
o-Xylene
ND
8.8
"
Bromoform
ND
21
1,1,2,2-Tetrachloroethane
ND
14
4-Ethyltoluene
ND
10
"
1,3,5-Trimethylbenzene
ND
10
"
1,2,4-Trimethylbenzene
21
10
1,3-Dichlorobenzene
ND
24
"
1,4-Dichlorobenzene
ND
24
1,2-Dichlorobenzene
ND
24
"
1,2,4-Trichlorobenzene
ND
75
"
Hexachlorobutadiene
ND
110
5ru�uQlrtd „•�7 hhwUerlr`YrR'•dd
101 %
76-134
Surrogate: 7oluene-d8
101 %
78-125
Surrogate: 4-BromoJluoroben_ene
94.0 Ya
77-117 "
Page 17 oI"30

H&P Mobile
Geochemistry Inc.
2470Impala Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast, LLP- Greensboro Project: F,CS071317-I1
4811 Koger Blvd Project Number: Whitaker Park Reported.
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallier 26-Jul-17 13:11
Volatile Organic Compounds by EPA TO-15
H&P Mobile Geochemistry, Inc.
Reporting Dilution
Analyte tiewli Limit Units Factor Batch Prepared Analyzed Method Notes
Dup-605 (E707053-12) Vapor Sampled: 06-Jul-17 Received: 13-Jul-17
Dichlorodifluoromethane (11712)
10
5.0 ugnn3 I EG72412 24-Jul-17 25-Jul-17 EPA 'f0-15
Chloromethane
ND
2.1 '
Dichlorotetrafluoroethane (F114)
ND
7.1
Vinyl chloride
ND
2.6
Bromomethane
ND
16 "
Chloroethane
ND
8.0 "
Trichlorofluoromethane (F1 1)
72
5.6 "
1, 1 -Dichloroethene
ND
4.0 "
1, 1,2-Trichlorotrifluoroethane (F 113)
ND
7.7 "
Methylene chloride (Dichloromethane)
ND
3.5 `
Carbon disulfide
24
6.3 '
trans-1,2-Dichloroethene
ND
8.0 '
1. 1 -Dichloroethane
ND
4.1 "
2-Butanone (MFK)
ND
30
cis-1,2-Dichloroethene
ND
4.0
Chloroform
ND
4.9 "
1, 1, 1 -Trichloroethane
ND
5.5 "
1,2-Dichloroethane (EDC)
ND
4.1 "
Benzene
4.9
3.2 "
Carbon tetrachloride
ND
6.4 "
richloroethene
ND
5.5 "
1,2-Dichloropropane
ND
9.4 "
Bromodichloromethane
ND
6.8
cis-1,3-Dichloropropene
ND
4.6 "
4-Methyl-2-pentanone (MIBK)
ND
8.3 "
trans-1,3-Dichloropropene
ND
4.6
Toluene
9.8
3.8 "
1,1,2-1'richloroethane
ND
5.5 "
2-Hexanone (MBK)
ND
8.3 '
Dibromochloromethane
ND
8.6 '
Tetrachloroethene
ND
6.9 "
1,2-Dibromoethane (EDB)
ND
7.8 "
I.1.12-'retrachloroethane
ND
7.0 '
Chlorobenzene
ND
4.7 '
Ethylbenzene
ND
4.4 "
m,p-Xylene
ND
8.8 '
Styrene
ND
4.3
o-Xylene
ND
4.4
Page 18 of 30

H&P Mobile
Geochemistry Inc.
2470Impala Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast, UP- Greensboro Project: ECS071317-11
4811 Koger Blvd. Project Number: Whitaker Park Reported.
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallier 26-Jul-17 13 III
Volatile Organic Compounds by EPA TO-15
H&Y Mobile Geochemistry, Inc.
Reporting Dilution
Analyte Result Limit knits p PC" Batch Prgored Analyzed Method dotes
Dup-605 (E707053-12) Vapor Sampled: 06-Jul-17
Received: 13-Jul-17
Bromoform
ND
10
4IM3 1 EG72412 24-Jul-17 25-Jul-17 EPA TO- 15
I,1,2,2-Tetrachloroethane
ND
7.0
44Ethyltoluene
ND
5.0
Y '
I.3,5-Trimethylbenzene
ND
5.0
`
1,2,4-Trimethylbenzene
ND
5.0
1,3-Dichlorobenzene
ND
12
"
1,4-Dichlorobenzene
ND
12
"
1,2-Dichlorobenzene
ND
12
1,2,4-Trichlorobenzene
ND
38
^ -
Hexachlurohuradiene
ND
64
^ -
Surrogate: 1,2-Dtehloroethane-d4
102 %
76-134 R
Surrogate: Toluene-d8
10.2%
78-125
Surrogate: 4-Bromofluoroben_ene
95.9 %
77-127
Page 19 of 30

H&P Mobile
Geochemistry Inc.
2470Impala Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fax
1 CS Southeast.. LLP- Greensboro Project ECS071317-11
4811 Koger Blvd Project Number: Whitaker Park Reported
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallier 26-Jul-17 13 11
Volatile Organic Compounds by H&P 8260SV
H&P Mobile Geochemistry, Inc.
Reporting Dilution
Analyte Result Limit Units Factor Hatch 'Ycp.iied Analyzed Method Notes
SG-21 (E707053-09) Vapor Sampled: 06-Jul-17 Received: 13-Jul-17
2-Butanone (MEK)
2-Hexanone (MBK)
4-Methyl-2-pentanone (MIBK)
Dichlorodifluoromethane (F 12)
Chloromethane
Vinyl chloride
Bromomethane
Chloroethane
Trichlorofluoromethane (FlI)
1, 1 -Dichloroethene
1,1,2 Trichlorotrifluoroethane (F 113)
Carbon disulfide
Methylene chloride (DichloromethaneJ
trans-1,2-Dichloroethene
I,I-Dichloroethane
cis-1,2-Dichloroethene
Chloroform
I, I,I-Trichloroethane
Carbon tetrachloride
1,2-Dichloroethane (EDC)
Benzene
Trichloroetheue
1,2-Dichloropropane
Bromodichloromethane
cis-1,3-Dichloropropene
lbluene
trans-1,3-Dichloropropene
1,1,2-Trichloroethane
1,2-Dibromoethane (EDB)
Tetrachloroethene
Di bromochloromethane
Chlorobenzene
Ethvlbenzene
1, 1, 1,2-Tetrachloroethane
m,p-Xvlene
o-Xylene
Styrene
Bromoform
ND
ND
ND
ND
NO
ND
ND
ND
37000
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
160
ND
ND
ND
ND
ND
ND
ND
ND
2500 ug/1113 D.05 EG71905 18-Jul-17 18-Jul-17 H&P8260SF'
2500
2500 "
500 "
500
50
500
500 "
500
500
500
500 "
500
500
500
500
100
500
100
100
100
100
500
500 "
500
1000
500
500
500
100
500 "
100
500
500
500
500
500
500
Page 20 of 30

H&P Mobile
Geochemistry Inc.
2470 Impala Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast. LLP- Greensboro Project: ECS071317-11
4811 Koger Blvd Project Number Whitaker Park Reported
Greensboro, SIC 27407 Project Manager Mr. Randy Cavallier 26-Jul-17 13 11
Volatile Organic Compounds by H&P 8260SV
H&P Mobile Geochemistry, Inc.
Reporting Dilution
,nalyte Rrntil Limit Units Factor Batch Prepared Analyzed Method kt
SG-21 (E707O53-09) Vapor
Sampled: 06-Jul-17 Received: 13-Jul-17
1,1,2,2-Tetrachloroethane
ND
500 ugim3 0.05 EG71905 I8-Jul-17 I9-Jul-17 H&P8260SV
1,3,5-Trimethyl benzene
ND
500 "
1,24-Trimethylbenzene
ND
500
1,3-Dichlorobenzene
ND
500 "
1,4-Dichlorobenzene
ND
500 "
1,2-Dichlorobenzene
ND
500 "
1,2,4-Trichlorobenzene
ND
500 "
Hexachlorobutadiene
ND
500
Surrogate: DibromoJluoromethane
11M wx 75-125 "
Surrogate: Toluene-d8
99.3 % 75-125 "
Surrogate:4-Bromofluorobenzene
103 75-125 "
SG-22 (E707053-10) Vapor Sampled: 06-Jul-17
Received: 13-Jul-17
2-Butartone(MEK)
ND
2500 ug/m3 005 E671905 18-Jul-17 18-Jul-17 H&P8260SG
2-Hexanone (MBK)
ND
2500 '
4-Methyl-2-pentanone (MIBK)
ND
2500 "
Dichlorodifluoromethane(F12)
ND
500 "
Chlorumethane
ND
500 '
Vinyl chloride
ND
50 '
Bromomethane
ND
500 "
Chloroethane
ND
500 "
Trichlorofluoromethane (Fll)
68000
500 "
1. 1 -Dichloroethene
ND
500 "
1, 1,2 1'richlorotrifluoroethane (F 113)
ND
500 '
Carbon disulfide
ND
500 '
Methylene chloride (Dichloromethane)
ND
500 '
trans-1,2-Dichloroethene
ND
500 "
I,I-Dichloroethane
ND
500
cis-1,2-Dichloroethene
ND
500 "
Chloroform
ND
100
1, 1, I-Trichloroethane
ND
500
Carbon tetrachloride
ND
100
1,2-Dichloroethane (EDC)
ND
100
Benzene
ND
100 '
Trichloroethene
ND
100 '
12-Dichloropropane
ND
500 "
Bromodichloromethane
ND
500 "
Page 21 of 30

H&P Mobile
Geochemistry Inc.
24701mpala Drive
Carlsbad, CA 92010
760-804-9678 Pbone
760-804-9159 Fax
GCS Southeast, LLP- Greensboro Project: ECS071317-11
4811 Koger Blvd Project Number Whitaker Park
Reported
Greensboro, NC 27407 Project Manager Mr. Randy Cavall ter 26-Jul-17 13:11
Volatile Organic Compounds by H&P 8260SV
H&F Mobile Gew: hem isl ry, lae.
Reporting Dilution
Analyte
Result
Limit I oats Form Batch Prepared Analyzed Method Notes
SG-22 (E707053-10) Vapor
Sampled: 06-Jul-17 Received: 13-Jul-17
cis-1,3-Dichloropropene
ND
500 ugim3 s1.03 Jf{ 519�+.'. 18-Jul-17 18-Jul-17 H&P8260SV
Toluene
ND
1000 -
trans-1,3-Dichloropropene
ND
500
1,1,2-Trichloroethane
ND
500 "
1,2-Dibromoethane (EDB)
ND
500
Tetrachloroethene
120
100 '
Dibromochloromethane
ND
500
Chlorobenzene
ND
100 "
Ethylbenzene
ND
500 "
1,1,1,2-'fetrachloroethane
ND
500
m,p-Xylene
ND
500
o-Xylene
ND
500 "
Styrene
ND
500
Bromoform
ND
500
1,1,2,2-Tetrachloroethane
ND
500
1,3,5-Trimethylbenzene
ND
50or
1,2,4-Trimethylbenzene
ND
500 "
1,3-Dichlorobenzenc
ND
500
1,4-Dichlorobenzene
ND
500
1,2-Dichlorobenzene
ND
500 "
1,2,4-Trichlorobenzene
ND
500
Hexachlorobutadiene
ND
500
Surrogate: DibromgJluoromethane HU % 75-125 -
Surrogate: 7oluene-d8 10� % 75-125
Surrogate: 4-Bromri luoroben_ene 11i5 % 75-125 °
Page 22 of 30

H&P Mobile
Geochemistry Inc.
2470 Impala Drive
Carlsbad, CA 92010
760-804-9678 Phora?
760-804-9159 Fax
ECS Southeast, LLP - Greensboro Project: ECS071717-16
4811 Koger Blvd Project Number. Whitaker Park Reported
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallier 26-Jul-17 14:01
Volatile Organic Compounds by EPA TO-15
H&F Mobile Geochemistry, Inc.
Reporting Dilution
kuelyre Result Limit Units Factor Batch Prepared Analyzed Method
i
SG-24 (E707065-01) Vapor Sampled: 07-Jul-17
Received: 17-Jul-17
Dichlorodifluoromethane(F12)
51
5.0 ug/m3 I EG72106 21-Jul-17 21-Jul-17 EPA TO-I5
Chloromethane
ND
2.1 "
Dichlorotetrafl uoroethane (F 114)
NO
7.1 "
Vinyl chloride
NO
2.6 "
Bromomethane
NO
16 '
Chloroethane
NO
8.0 "
Trichlorofluoromethane (Fll)
190
5.6 "
1, 1 -Dichloroethene
NO
4.0 "
1,1,2-Trichlorotrifluoroethane(F113)
NO
7.7 "
Methylene chloride (Dichloromethanel
NO
3.5
Carbon disulfide
NO
6.3
trans-1,2-Dichloroethene
NO
8.0 "
1, 1 -Dichloroethane
NO
4.1 "
2-Butanone (MEK)
79
30
cis-1,2-Dichloroethene
NO
4.0 '
Chloroform
ND
4.9
1,1,I-Trichloroethane
ND
5.5 "
1,2-Dichloroethane(EDC)
ND
4.1 '
Benzene
ND
3.2 "
Carbon tetrachloride
NO
6.4
Dichloroethene
NO
5.5 -
1,2-Dichloropropane
NO
9.4
Bromodichloromethane
NO
6.8 "
cis-1,3-Dichloropropene
ND
4.6 '
4-Methyl-2-pentanone (MIBK)
NO
8.3
trans-1,3-Dichloropropene
ND
4.6
Toluene
8.1
3.8
I,12-Trichloroethane
ND
5.5 "
2-Hexanone (MBK)
NO
8.3 "
Dibromochloromethane
NO
8.6 '
Tetrachloroethene
NO
6.9 "
1,2-Dibromoethane (EDB)
NO
7.8 '
I,1,1,2-'Fetrachloroethane
NO
7A '
Chlorobenzene
NO
4.7 '
Ethylbenzene
ND
4.4 "
m,p-Xylene
ND
8.8 '
Styrene
ND
4.3 '
o-Xylene
ND
4.4
Page 7 of 34

H&P Mobile
Geochemistry Inc.
2470 Impala Drive
Carlsbad, CA 92010
76fl-804.9678 Phone
760-804-9159 Fax
ECS Southeast, LLP - Greensboro Project: ECS071717-16
4811 Koger Blvd Project Number: Whitaker Park Reported.
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallier 26-Jul-17 14:01
Volatile Organic Compounds by EPA TO-15
H&P Mobile Geochemistry, Inc.
Rchunlne Dilution
�,\.Dalyte Result I3131LI I'un• Factor Batch Prepared Aaalyzed -Method Notes
SG-24 (E707065-01) Vapor Sampled: 07-Jul-17
Received: 17-Jul-17
Bromoform
ND
10
ug/m3 I E-(jT2[06 21-Jul-17 21-Jul-17 EPA "1'0-15
1,1,2,2-Tetrachloroethane
ND
7.0
"
4-Ethyltoluene
ND
5.0
1,3,5-Trimethylbenzene
ND
5.0
1,2,4-Trimethylbenzene
ND
5.0
"
1,3-Dichlorobenzene
ND
12
"
1,4-Dichlorobenzene
ND
12
"
1,2-Dichlorobenzene
ND
12
"
1,2,4-Trichlorobenzene
ND
38
"
Hexachlorobutadiene
ND
54
"
Surrogate: 1,2-Dichloroethane-d4
102 %
76.134
Surrogate: Toluene-d8
102 %
78-4�5 "
Surrogate: 4-Bromofluoroben::ene
95.5 Ya
' 1.17
SG-25 (E707065-02) Vapor Sampled: 07-Jul-17
Received: 17-Jul-17
Dichlorodifluoromethane(F12)
30
5.0
ug/m3 1 EG72106 21-Jul-17 :I-fill17 ERATO-15
Chloromethane
ND
2.1
Dichlorotetrafluoroethane (H 14)
ND
7.1
"
Vinyl chloride
ND
2.6
"
Bromomethane
ND
16
"
Chloroethane
ND
8.0
"
rrichlorofluoromethane (Fll)
22
5.6
"
I,1-Dichloroethene
ND
4.0
1,1,2-Trichlorotrifluoroethane(F713)
8.6
7.7
"
Methylene chloride (Die hloromethane)
ND
3.5
Carbon disulfide
ND
6.3
"
trans-1,2-Dichloroethene
ND
8.0
"
1, 1 -Dichloroethane
ND
4.1
"
2-Butamme (XIEK)
31
30
cis-1,2-Dichloroethene
ND
4.0
Chloroform
ND
4.9
I,1,1-Trichloroethane
ND
5.5
"
1,2-Dichloroethane (EDC)
9,0
4.1
"
Beocene
24
3.2
Carbon tetrachloride
ND
6.4
Trichloroethene
ND
5.5
"
12-Dichloropropane
ND
9.4
`
Page 8 of34

H&P Mobile
Geochemistry Inc.
2470 Impala Drive
Carlsbad, CA 9'2010
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast, LLP - Greensboro Project: E-CS071717-16
4811 Koger Blvd Project Number: Whitaker Park Reported
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallier 26-JuJ•17 14:01
Volatile Organic Compounds by EPA TO-15
H&P Mobile Geochemistry, Inc.
Reporting Dilution
Analyte Result Limit Units Factor Batch Prepared Analyzed Method Notes
SG-25 (E707065-02) Vapor Sampled: 07-Jul-17
Received: 17-Jul-17
Bromodichloromethane
ND
6.8
ug/m3 I EG72106 21-Jul-17 21 Jul-17 EPATO- 15
cis-1,3-Dichloropropene
ND
4.6
"
4-Methyl-2-pentanone (MIBK)
ND
8.3
"
trans-1,3-Dichloropropene
ND
4.6
"
Toluene
330
3.8
1,1,2-Trichloroethane
ND
5.5
'
2-Hexanone(MBK)
ND
8.3
Dibromochloromethane
ND
8.6
"
Tetrachloroethene
ND
6.9
"
1,2-Dibromoethane (CDB)
ND
7.8
"
1, 1, 1,2-Tetrachloroethane
ND
7.0
"
Chlorobenzene
ND
4.7
"
E,thylbenzene
35
4.4
"
m,p-Xylene
110
8.8
"
Styrene
ND
4.3
"
o-Xylene
48
4.4
"
Bromoform
ND
10
"
1,1,2,2-Tetrachloroethane
ND
7.0
"
4-Ethyltoluene
8.4
5.0
"
1,3,5-Trimethylbenzene
9.2
5.0
"
1,2,4-Trimethylbenzene
26
5.0
"
1,3-Dichlorobenzene
ND
12
"
1,4-Dichlorobenzene
ND
12
"
1,2-Dichlorobenzene
ND
12
1,2,4-Trichlorobenzene
ND
38
"
Hexachlorobutadiene
ND
54
'
Sunogate: 1,2-Dichloroethane-d4
105 %
76-134 '
Surrogate: Toluene-d8
102 %
78-12-5
Surrogate_ 4-Bromo/luarobemene
93.5 %
77427 '
Page 9 of 34

H&P Mobile
Geochemistry Inc.
24701mpala Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast, LLP- Greensboro Project: ECS071717-16
4811 Koger Blvd Project Number: Whitaker Park Reported
Greensboro, NC 27407 Project Manager: Mr_ Randy Cavallier 26-Jul-17 14 01
Volatile Organic Compounds by EPATO-15
H&P Mobile Geochemistry, Inc.
Reporting Dilution
Analyte Result 1.inll1 Lnits r.AMI Batch Prepared analyzed Method Notes
SG-26 (E707065-03) Vapor Sampled: 07-Jul-17 Received: 17-Jul-17
Dichlorodifluoromethane(F12)
160
5-0 uuhu; I EG72106 21-Jul-l7 21-Jul-17 EPATO-15
Chloromethane
ND
2.1 '
Dichlorotetrafl uoroethane (F 114)
ND
7.1
Vinyl chloride
ND
2-6 "
Bromomethane
ND
16 "
Chloroethane
ND
8.0 "
Trichlorofluoromethane (Fll)
860
5.6 `
I,I-Dichloroethene
ND
4.0 "
1, 1,2-Trichlorotrifluoroethane (F 113)
ND
7.7
Methvlene chloride (Dichloromethane)
ND
3.5
Carbon disulfide
ND
6.3 "
trans•1,2-Dichloroethene
ND
8.0
1, 1 -Dichloroethane
ND
4.1
2-Butanone(MEK)
ND
30 '
cis-1,2-Dichloroethene
ND
4.0 '
Chloroform
6.2
4.9 "
1, 1, 1 -Trichloroethane
ND
5,5 "
1,2-Dichloroethane (EDC)
ND
4.1 "
Benzene
ND
3.2 `
Carbon tetrachloride
ND
6.4 '
Trichloroethene
9.0
5.5 "
1,2-Dichloropropane
ND
9.4
Bromodichloromethane
ND
6.8 "
cis-1,3-Dichloropropene
ND
4.6
4-Methyl-2-pentanone (MIBK)
ND
8.3
trans-1,3-Dichloropropene
ND
4.6
Toluene
8.3
3.8 "
1,1,2-'Trichloroethane
ND
5.5 "
2-Hexanone (MBK)
ND
8.3 "
Dibromochloromethane
ND
8.6 `
Tetrachloroethene
10
6.9
1,2-Dibromoethane (EDB)
ND
7.8
I. I. 1..2-'Fetrachloroethane
ND
TO
Chlorobenzene
ND
4.7 "
Ethylbenzene
ND
4.4 "
m,p-Xylene
ND
8.8 "
Styrene
ND
4.3
o-Xylene
ND
4.4
Page 10 of 34

H&P Mobile
Geochemistry Inc.
2470Impala Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast, LIT- Greensboro Project: ECS071717-16
4811 Koger Blvd Project Number: Whitaker Park Reported
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallier 26-Jul-17 14:01
Volatile Organic Compounds by EPA TO-15
H&P Mobile Geochemistry, Inc.
Reporting Dilution
Analyte Result Limit knits Factor Batch Prepared Analyzed Mediod Sotea
SG-26 (E707065-03) Vapor Sampled: 07-Jul-17 Received: 17-Jul-17
Bromoform
NO
10
ug+m3 L 1{J7-Ir16 21-Jul-17 21-Jul-17 EPATCP-JS
1,1,2,2-Tetrachloroethane
ND
7.0
"
4-Ethvltoluene
ND
5.0
"
1,3,5-Trimethy[benzene
ND
5.0
"
1,2,4-Trimethylbenzene
NO
5.0
"
1,3-Dichlorobenzene
ND
12
"
1,4-Dichlorobenzene
NO
12
"
1.2-Dichlorobenzene
NO
12
1,2,4-Trichlorobenzene
ND
38
"
Hexachlorobutadiene
ND
54
Surrogate: 1,2-Dichloroethane-d4
104 %
76-1,34
Surrogate: Toluene-d8
105 %
'8-12€
Surrogate: 4-BromoJluorobenzene
97.6 %
'7
SG-27 (E707065-04) Vapor Sampled: 07-Jul-17
Received: 17-Jul-17
Dichlorodifluoromethane(F12)
16
5-0
1 EG72106 21-Jul-17 21Jul- 17 FJ1AT{}-1'
Chloromethane
2.2
2.1
"
Dichlorotetrafluoroethane (F 114)
lyp
7.1
"
Vinyl chloride
ND
2.6
Bromomethane
ND
16
Chloroethane
ND
8.0
Trichlorofluoromethane (F11)
7.8
5.6
"
l,l-Dichloroethene
ND
4.0
"
I,1,2-Trichlorotrifluoroethane (F 1 13)
ND
7.7
Methylene chloride (Dichloromethane)
ND
3.5
"
Carbon disulfide
NO
6.3
trans- I.2-Dichloroethene
ND
8.0
I,1-Dichloroethanc
ND
4.1
"
2-Butanone (MEK)
39
30
"
cis-1,2-Dichloroethene
NO
4.0
Chloroform
ND
4.9
"
I.1,1-Trichloroethane
ND
5.5
"
1,2-Dichloroethane (EDC)
NO
4A
"
Benzene
NO
3.2
Carbon tetrachloride
NO
6.4
Tichloroethene
ND
5.5
1.2-Dichloropropane
ND
9A
"
Page l 1 of 34

H&P Mobile
Geochemistry Inc.
2470Impala Drive
Carlsbad, CA 92010
760-804-9678 PYtone
760-804-9159 Fax
ECS Southeast, LLP- Greensboro Project: ECS071717-16
4811 Koger Blvd. Project Number: Whitaker Park Reported
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallier 26-Jul-17 14:01
Volatile Organic Compounds by EPA TO-15
H&Y Mobile Geochemistry, Inc.
Reporting Dilution
Analyte Its�ull Limit [ uu Factor Batch Prepared Analyzed vlethod \otes
SG-27 (E707065-04) Vapor Sampled: 07-Jul-17
Received: 17-Jul-17
Bromodichloromethane
ND
6.8
ug/nO I EG72106 21-Jul-17 21-iu1-17 EPA FO-15
cis- 1,3•Dichloropropene
ND
4.6
'
4-Methyl-2-pentanone(MIBK)
ND
8.3
'
trans-1,3-Dichloropropene
NO
4.6
"
Toluene
6.1
3.8
"
1,1,2-Trichloroethane
ND
5.5
"
2-Hexanone (MBK)
NO
8.3
Dibromochloromethane
ND
8.6
Tetrachloroethene
ND
6.9
"
1,2-Dibromoethane (EDB)
ND
7.8
1, 1, 1,2-Tetrachloroethane
NO
7.0
Chlorobenzene
ND
4.7
"
Ethylbenzene
ND
4A
'
m,p-Xylene
NO
8.8
"
Styrene
NO
4.3
"
o-Xvlene
ND
4.4
Bromoform
ND
10
1,1,2,2-'Tetrachloroethane
ND
7-0
4-Ethyltoluene
ND
5-0
1,3.5-Trimethylbenzene
ND
5.0
"
1,2,4-Trimethylbenzene
NO
5.0
' -
1,3-Dichlorobenzene
ND
12
1,4-Dichlorobenzene
ND
12
"
1,2-Dichlorobenzene
NO
12
"
1,2,4-Trichlorobenzene
NO
38
"
Hexachlorobutadiene
ND_
64
- w
Surrogate: 1,2-Dtchloroethane-d4
99.8 %
76-134
Surrogate: Toluene-d8
103 %
78-125
Surrogate: 4-Bramofluoroben_ene
96.4 a%
77-127
Page 12 of 34

H&P Mobile
Geochemistry Inc.
2470 Impala Drive
Carlsbad, CA 92010
760-804.9678 Phone
760-804-9159 Fax
ECS Southeast, LLP- Greensboro Project: ECS071717-16
4811 Koger Blvd Project Number: Whitaker Park Reported.
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallier 26-Jul-17 14:01
Volatile Organic Compounds by EPA TO-15
H&P Mobile Geochemistry, Inc.
Reporting Dilution
\-nalyte Result Limit Lnits 1-�.u,i Batch Prepared Analyzed Mcthod 14ow.
SG-28 (E707065-05) Vapor Sampled: 07-Jul-17
Received: 17-Jul-17
Dichlorodifluoromethane(F12)
69
5.0 ug-m3 1 EG72106 21-Jul-17 21-Jul-17 EmTO- 15
Chloromethane
ND
21
Dichlorotetrafluoroethane (F 114)
ND
7.1
Vinyl chloride
ND
2.6 '
Bromomethane
ND
16 '
Chloroethane
ND
8.0 '
Trichlorofluoromethane (F11)
12
5.6
I,1-Dichloroethene
ND
4.0
1,1,2-Trichlorotrifluoroethane(F113)
ND
7.7 "
Methylene chloride (Dichloromethane)
ND
3.5 '
Carbon disulfide
ND
6.3 "
trans-1,2-Dichloroethene
ND
8.0
1,1-Dichloroethane
ND
4.1 "
2-Butanone (MEK)
ND
30
cis-1,2-Dichloroethene
ND
4.0 "
Chloroform
ND
4.9
1, 1, 1 -Trichloroethane
ND
5.5 "
1,2-Dichloroethane (EDC)
ND
4.1
Benzene
4.2
3.2 "
Carbon tetrachloride
ND
6.4
Trichloroethene
ND
5.5
1,2-Dichloropropane
ND
9.4 "
Bromodichloromethane
ND
6.8
cis-1,3-Dichloropropene
ND
4.6
4-Methyl-2-pentanone (MIBK)
ND
8.3
trans-1,3-Dichloropropene
ND
4.6
Toluene
7.2
3.8 "
I,1,2-Trichloroethane
ND
5.5
2-1Iexanone (MBK)
ND
8.3
Dibromochloromethane
ND
8.6 '
Tetrachloruethene
ND
6.9 "
1,2-Dibromoethane (EDB)
ND
7.8 '
1, 1, 1,2-Tetrachloroethane
N D
7.0 '
Chlorobertzene
ND
4.7 '
Ethylbenzene
ND
4.4 "
m,p-Xylene
ND
8.8
Styrene
ND
4.3
o-Xylene
ND
4.4 "
Page 13 of 34

H&P Mobile
Geochemistry Inc.
2470Impala Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast. LLP- Greensboro Project: ECS071717-16
4811 Roger Blvd. Project Number: Whitaker Park Reported
Greensboro, NC 27407 Project Manager Mr. Randy Cavallier 26-Jul-17 14.01
Volatile Organic Compounds by EPA TO-15
H&Y Mobile Geochemistry, Inc.
Reporting Dilution
Analyte Result Limit [ nits Factor Balch Prepared Analyzed Ylethod Noes
SG-28 (E707065-05) Vapor Sampled: 07-Jul-17
Received: 17-Jul-17
Bromoform
ND
10
ug/m3 I FG72106 21-Jul-17 21-Jul-17 EPA TO-15
1,1,2,2-Tetrachloroethane
ND
7.0
4-L'thvltoluene
ND
5.0
'
1,3,5-Trimethylbenzene
ND
5.0
"
1,2,4-Trimethylbenzend
ND
5.0
1,3-Dichlorobenzene
ND
12
1.4-Dichlorobenzene
ND
12
1,2-Dichlorobenzene
ND
12
"
1,2,4-Trichlorobenzene
ND
38
"
Jlexachlorobutadiene
ND
54
Surrogate: 1,2-Dichloroethane-d4
14NI %
-6414
Surrogate: "Toluene-d8
0.5 %
78-L'S
Surrogate: 4-Bromo luorobencene
[+d .t %
77-1: -
SG-29 (E707065-06) Vapor Sampled: 07-Jul-17
Received: 17-Jul-17
Die hlorodifluoromethane(F12)
97
5.0
ug/m3 I EG72106 21-Jul-17 22-Jul-17 EPA TO- 15
Chloromethane
ND
2.1
Dichlorotetratluoroethane(FIi4)
ND
7.1
Vinyl chloride
ND
2.6
Bromomethane
ND
16
"
Chloroethane
ND
8.0
Trichlorofluoromethane (F11)
130
5.6
I,1-Dichloroethene
ND
4.0
1, 1,2-Trichlorotrifluoroethane (F 113)
ND
7.7
"
Methylene chloride (Dichloromethane)
ND
3.5
"
Carbon disulfide
32
6.3
"
trans-1,2-Dichloroethene
ND
8.0
"
1. 1 -Dichloroethane
ND
4.1
"
2-Butanone (MEK)
ND
30
"
cis-1,2-Dichloroethene
ND
4.0
-
Chloroform
ND
4.9
"
1, 1, 1 -Trichloroethane
ND
5.5
1,2-Dichloroethane(EDC)
ND
4.1
Benzene
7.2
3.2
"
Carbon tetrachloride
ND
6.4
"
Trichloroethene
ND
5.5
"
1,2-Dichloropropane
ND
9.4
"
Page 14 of 34

H&P Mobile
Geochemistry Inc.
2470Impala Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast. LLP- Greensboro Project F.CS071717-16
4811 Koger Blvd. Project Number: Whitaker Park Reported
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallier 26-Jul-17 14.01
Volatile Organic Compounds by EPA TO-15
H&P Mobile Geochemistry, Inc.
Reporting Dilution
ALIRIAU Resuh Litnil Units Factor Bat& Prepared Analyzed lvfethod Notes
SG-29 (E707065-06) Vapor Sampled: 07-Jul-17 Received: 17-Jul-17
Bromodichloromethane
ND
6.8
uglm3 1 EG72106 21-Jul-17 22-Jul-17 EPATO-IJ
cis-1,3-Dichloropropene
ND
4.6
4-Methyl-2-pentanone (MIRK)
ND
8.3
'
trans-1,3-Dichloropropene
ND
4.6
Toluene
11
3.8
`
1,1,2-Trichloroethane
ND
5.5
2-Hexanone (MBK)
14
8.3
'
Dibromochloromethane
ND
8.6
1'etrachloroethene
17
6.9
"
1,2-Dibromoethane (EDB)
ND
7.8
"
1,1,1,2-1'etrachloroethane
ND
7.0
Chlorobenzene
ND
4.7
'
Ethylbenzene
ND
4.4
'
m,p-Xylene
ND
8.8
Styrene
ND
4.3
o-Xylene
ND
4.4
Bromoform
ND
10
"
1,1,2,2-1'etrachloroethane
ND
7.0
"
4-Ethyltoluene
ND
5.0
"
1,3,5-Trimethylbenzene
ND
5.0
'
1,2,4-Trimethylbenzene
5.5
5.0
1,3-Dichlorobenzene
ND
12
"
1,4-Dichlorobenzene
ND
12
"
1,2-Dichlorobenzene
ND
12
"
12,4-1'richlorobenzene
ND
38
'
Haxachlorobutadiene
ND
54
'
Surrogate: 1.2-Dichloroethane-d4
99.4 %
76-134 '
Surrogate: Toluene-d8
100 %
78-125 "
.Surrogate: 4-Bromofluorobemene
gag Va
77-127 "
Page 15 ol'34

H&P Mobile
Geochemistry Inc.
2470 Impala (Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast, LLP- Greensboro Project: ECS071717-16
4811 Koger Blvd Project Number: Whitaker Park Reported
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallier 26-Jul-17 14:01
Volatile Organic Compounds by EPA TO-15
H&P Mobile Geochemistry, Inc.
Repuranc Dilation
Analyte Result 1 ¢ml I -nits Factor Batch Prepared Analyzed Method Notes
SG-30 (E707065-07) Vapor Sampled: 07-Jul-17 Received: 17-Jul-17
Dichlorodifluoromethane (F 12)
ND
5.0 ug/m3 1 EG72106 21-Jul-17 22-Jul-17 F.PAI'0-15
Chloromethane
ND
2.1 "
Dichlorotetrafluoroethane (F 114)
ND
7.1
Vinyl chloride
ND
2.6
Bromomethane
ND
16
Chloroethane
ND
8.0
Triehlorofluoromethane (FI 1)
ND
5.6 "
1, 1 -Dichloroethene
ND
4.0 "
1,1,2-Trichlorotrifluoroethane (F113)
ND
7.7 "
Methylene chloride (Dichloromethane)
ND
3.5 "
Carbon disulfide
19
6.3
trans-1,2-Dichloroethene
ND
8.0
1,1-Dichloroethene
ND
4.1
2-Butanone (MEK)
ND
30
cis-1,2-Dichloroethene
ND
4.0
Chloroform
ND
4.9
1,1,1-1richloroethane
ND
5.5
1,2-Dichloroethane (EDC)
ND
4.1
Benzene
5.5
3.2
Carbon tetrachloride
ND
6.4
Trichloroethene
ND
5.5
1,2-Dichloropropane
ND
9.4
Bromodichloromethane
ND
6.8
cis-1,3-Dichloropropene
ND
4.6 "
4-Methyl-2-pentanone (MIBK)
ND
8.3 "
trans-1,3-Dichloropropene
ND
4.6
Taht=v
5.7
3.8
1,1,2--rrichloroethane
ND
5.5 "
2-Hexanone (MBK)
ND
8.3
Dibromochloromethane
ND
8.6 "
Tetrachloroethene
ND
6.9
1,2-Dibromoethane (EDB)
ND
7.8
L1.12-Tetrachloroethane
ND
7.0
Chlorobenzene
ND
4.7
F,thylbenzene
ND
4.4
m,p-Xylene
ND
8.8
Styrene
ND
4.3
o-Xylene
ND
4.4
Page 16 of 34

H&P Mobile
Geochemistry Inc.
24701mpala Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast, LLP - Greensboro Project: F,CS071717-16
4911 Koger Blvd Project Number: Whitaker Park Reported
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallier 26-Jul-17 14:01
Volatile Organic Compounds by EPA TO-15
H&P Mobile Geochemistry, Inc.
Reporting Dilution
Analyte Result Limit Units Factor Batch Prepared Analyzed vlethud N'lACS
SG-30 (E707065-07) Vapor Sampled: 07-Jul-17 Received: 17-Jul-17
Bromoform
ND
10
sw'mJ 1 EG72106 21-Jul-17 22-Jul-17 EPATO-15
1,1,2,2-Tetrachloroethane
ND
7.0
"
4-Ethyltoluene
ND
5.0
"
1,3,5-Trim ethyl benzene
NO
5-0
1,2,4-Trimethylbenzene
ND
5.0
1,3-Dichlorobenzene
ND
12
1,4-Dichlorobenzene
NO
12
'
1,2•Dichlorobenzene
ND
12
1,2,4-Trichlorobenzene
ND
38
"
Hexachlorobutadiene
ND
54
Surrogate: 1,2-Dichloroethane-d4
102 %
76-134 '
Surrogate: Toluene-d8
104 %
78-125
Surrogate: 4-Bromofluoroben_ene
96.8 Yaa
77-127 '
SG-31 (E707065-08) Vapor Sampled: 07-.1ul-17
Received: 17-Jul-17
Dichlorodifluoromethane (F12)
5.1
5.0 ug/m3
Chloromethane
2.4
2.1
Dichlorotetrafl uoroethane (F 114)
ND
7.1
Vinyl chloride
ND
2.6
Bromomethane
ND
16
Chloroethane
ND
8.0
Trichlorofluoromethane (F 11)
ND
5.6
],I-Dichloroethene
ND
4.0
1,1,2-Trichlorotrifluoroethane(F113)
ND
7.7
Methylene chloride (Dichloromethanel
ND
3.5
Carbon disulfide
8.9
6.3
trans-1,2•Dichloroethene
ND
8.0 "
1, 1 -Dichloroethane
ND
4.1
2-Butanone (MFK)
ND
30
cis-1,2-Dichloroethene
ND
4.0
Chloroform
ND
4.9
1, 1, 1 -Trichloroethane
ND
5.5
1,2-Dichloroethane (EDC)
ND
4.1
Benzene
5.8
3.2
Carbon tetrachloride
ND
6.4
Trichloroethene
ND
5.5
1,2-Dichloropropane
ND
9.4
I EG72106 21-Jul-17 22-Jul-17 ERA TO- 15
Page 17 of 34

H&P Mobile
Geochemistry Inc.
2470 Impala Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast. UP - Greensboro Project ECS071717-16
4811 Koger Blvd. Project Number: Whitaker Park Reported
Greensboro, NC 27407 Project Manager: Mr Randy Cavallier 26-Jul-17 14:01
Volatile Organic Compounds by EPA TO- 15
H&Y Mobile Geochemistry, Inc.
Reporting Dilution
Analyte RCml1 Limit Cnirs Factor Batch Prepared Analyzed Method Notes
SG-31 (E707065-08) Vapor Sampled: 07-Jul-17
Received: 17-Jul-17
Bromodichloromethane
NO
6.8
ug+m3 I EG72106 21-Jul-11 L-Ail-17 EPA TO- 15
cis-1,3-Dichloropropene
ND
4.6
'
4-Methyl-2-pentanone (MIBK)
NO
8.3
"
trans-1,3-Dichloropropene
ND
4.6
Toluene
11
3.8
"
1,1,2-Trichloroethane
ND
5.5
"
2-Hexanone (MBK)
NO
8.3
Dibromochloromethane
ND
8.6
"
1"etrachloroethene
ND
6.9
"
1,2-Dibromoethane (EDB)
ND
7.8
"
1,1,1,2-"I'etrachloroethane
NO
7.0
"
Chlorobenzene
NO
4.7
"
Ethylbenzene
NO
4.4
m,p-Xylene
NO
8.8
Styrene
ND
4.3
"
o-Xylene
NO
4.4
"
Bromoform
ND
10
1,1,2,2-'Fetrachloroethane
ND
TO
'
4-Ethyltoluene
ND
5 0
'
1,3,5-Trim ethyl benzene
NO
5.0
1,2,4-Trimethylbenzene
6.7
5"0
'
1,3-Dichlorobenzene
ND
12
1;4-Dichlorobenzene
NO
12
"
1,2-Dichlorobenzene
NO
12
"
1,2,4-Trichlorobenzene
ND
38
'
IIexachlorobutadiene
NO
54
-
Surrogate' 1,2-Dichloroethane-d4
100 %
76-134 '
Surrogate: Toluene-d8
102 %
78-125 `
Surrogate: 4-Bromojluoroben_ene
95.5'4
77-127
Page 18 of 34

H&P Mobile
Geochemistry Inc.
2470Impala Drive
Carlsbad, CA 9201a
760-804-9678 Phone
760-804-9159 Fax
EGS Southeast, LLP - Greensboro Project: ECS071717-16
4811 Koger Blvd. Project Number Whitaker Park Reporter)
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallier 26-Jul-17 14:01
Volatile Organic Compounds by EPA TO-15
H&P Mobile Geochemistry, Inc.
Reporting Dilution
Analyte Result Limit I:ur, 14,1.11 Batch Prepared Analyzed Method Notes
DCP 2-1 (E707065-09) Vapor Sampled: 07-Jul-17
Received: 17-Jul-17
Dichlorodifluoromethane(F12)
11
5.0 ug/m3 I EG72106 21-Jul-17 22-Jul-17 ERA TO-15
Chloromethane
7.0
2.1 '
Dichlorotetrafluoroethane (Fl 14)
ND
7.1
Vinyl chloride
ND
2.6 "
Bromomethane
ND
16
Chloroethane
ND
8.0 "
Trichlorofluoromethane (Fll)
220
5.6
I,1-Dichloroethene
ND
4.0
1, 1,2-Trichlorotrifluoroethane (F 113)
ND
7.7 '
Methylene chloride (Dichloromethancl
ND
3.5 "
Carbon disulfide
ND
6.3 "
trans-1,2-Dichloroethene
ND
8.0 "
1, 1 -Dichloroethane
ND
4.1 "
2-Butanone (MEK)
79
30 "
cis-1,2-Dichloroethene
ND
4.0
Chloroform
ND
4.9 "
1,1,l-Trichloroethane
ND
5.5
1,2-Dichloroethane (EDC)
ND
4.1
Benzene
ND
3.2 "
Carbon tetrachloride
ND
6.4
Frichloroethene
ND
5.5 "
1,2-Dichloropropane
ND
9.4 "
Bromodichloromethane
ND
6.8 "
cis-1,3-Dichloropropene
ND
4.6
4-Methyl-2-pentanone (MIBK)
ND
8.3 "
trans-1,3-Dichloropropene
ND
4.6 "
Toluene
ND
3.8 "
1,1,2-Trichloroethane
ND
5.5 "
2-Hexanone (MBK)
ND
8.3 "
Dibromochloromethane
ND
8.6 "
Tetrachloroethene
ND
6.9 "
1,2-Dibromoethane (EDB)
ND
7.8
L1,1,2-Tetrachloroethane
ND
7.0 '
Chlorobenzene
ND
4.7
Ethylbenzene
ND
4.4 "
m,p-Xylene
ND
8.8 '
Styrene
ND
4.3
o-Xylene
ND
4.4 "
Page 19of34

H&P Mobile
Geochemistry Inc.
2470 Impala Drive
Carlsbad, CA 92010
760.804-9678 Phone
760,804-9159 Fax
ECS Southeast, LL.P - Greensboro Project: ECS071717-16
4811 Koger Blvd Project Number Whitaker Park Reported.
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallier 26-Jul-17 14:04
Volatile Organic Compounds by EPA TO-15
H&Y Mobile Geochemistry, Inc.
Reporting Dilution
4m r Result Limit Units F,n'roi Batch Prepared Analyzed \4ethod Notes
DUP 2-1 (E707065-09) Vapor Sampled: 07-Jul-17 Received: 17-Jul-17
Bromoform
ND
10
ug;M I EG72106 21-Jul-17 22-Jul-17 ]R4 iYFl5
1,1,2,2-Tetrachloroethane
RD
7.0
"
4-Ethyltoluene
ND
5.0
"
1,3,5-Trimethylbenzene
ND
5,0
"
1,2,4-Trimethylbenzene
ND
5.0
"
1,3-Dichlorobenzene
ND
12
1,4-Dichlorobenzene
ND
12
"
1,2-Dichlorobenzene
ND
12
1,2,4-Trichlorobenzene
ND
38
"
Hexachlorobutadiene
ND
54
Surrogate: 1,2-Dichloroethane-d4
100 %
76-134
.Surrogate: Toluene-d8
101 %0
Surrogate. 4-Bromofluoroben_ene
97.0 %
77-127 "
DUP605-12 (E707065-10) Vapor Sampled: 07-Jul-17
Received: 17-Jul-17
Dichlorodifluoromethane(Fl2)
130
5.0
uglm3 EG72106 21Aul-17 22-Jul-17 EPA TO- 15
Chloromethane
2,5
2.1
Dichlorotetrafluoroethane (F114)
ND
7.1
"
Vinyl chloride
ND
2.6
Bromomethane
ND
16
"
Chloroethane
ND
8.0
Trichlorofluoromethane (1711)
13
5.6
],I-Dichloroethene
ND
4.0
1.1,2-Trichlorotrifluoroethane(F113)
ND
7.7
"
Methylene chloride (Dichloromethane)
ND
3.5
Carbon disulfide
ND
6.3
"
trans-1,2-Dichloroethene
ND
8.0
1,1-Dichloroethane
ND
4.1
'
2-Butanone (MEK)
ND
30
65-1,2-Dichloroethene
ND
4.0
'
Chloroform
ND
4.9
'
l,l,l-Trichloroethane
ND
5.5
1,2-Dichloroethane (EDC)
ND
4.1
Benzene
4.2
3.2
'
Carbon tetrachloride
ND
6.4
Trichloroethene
ND
5.5
1,2-Dichloropropane
ND
9.4
Page 20 of 34

H&P Mobile
Geochemistry Inc.
2470impa10 Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast, UP - Greensboro Project: ECS071717-16
4811 Koger Blvd Project Number Whitaker Park Reported.
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallier 26-Jul-17 14:D1
Volatile Organic Compounds by EPA TO-15
H&Y Mobile Geochemistry, Inc.
Reporting Dilution
Analyte RLMIN t.imit t;nits Factor Batch Prepared Analyzed -Method Notes
DUP605-12 (E707065-10) Vapor Sampled: 07-Jul-17 Received: 17-Jul-17
Bromodichloromethane
ND
6.8
ugim3 I EG72106 21-Jul-17 22-Jul-17 EPATO-15
cis-1,3-Dichloropropene
ND
4.6
4-Methyl-2-pentanone (MIBK)
ND
8.3
"
trarts-1,3-Dichloropropene
ND
4.6
Toluene
19
3.8
"
1,1,2-Trichloroethane
ND
5.5
"
2•Hexanone (MBK)
ND
8.3
"
Dibrom oc hl orom ethane
ND
8.6
Tetrachloroethene
ND
6.9
"
1,2-Dibromoethane (EDB)
ND
7.8
"
1,1,1,2-Tetrachloroethane
ND
7.0
"
Chlorobenzene
ND
4.7
Ethylbenzene
ND
4.4
`
m,p-Xylene
12
8.8
"
Styrene
ND
4.3
"
o-Xylene
5.4
4.4
"
Bromoform
ND
10
"
1,1,2,2-Tetrachloroethane
ND
7.0
"
4-Ethyltoluene
ND
5.0
"
1,3,5-TrimethyIbenzene
ND
5.0
1,2,4-'rrimethylbenzene
ND
5.0
"
1,3-Dichlorobenzene
ND
12
"
1,4-Dichlorobenzene
ND
12
"
1,2-Dichlorobenzene
ND
12
"
1,2,4-Trichlorobenzene
ND
38
"
Hexachlorobutadiene
ND
54
"
Surrogate. 1.2-Dichloroelhane-d4
99.6 %
76-134 "
Surrogate: Toluene-d8
102 %
78-125 "
Surrogate. 4-Bromofluorobencene
93.0 %
77-127
Page 21 of 34

H&P Mobile
Geochemistry Inc.
2470Impala Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast, LLP- Greensboro Project: ECS071717-16
4811 Koger Blvd Project Number: Whitaker Park Reported.
Greensboro, NC 27407 Project Manager: Mr_ Randy Cavallier 26-Jul-17 14:01
Volatile Organic Compounds by EPA TO-15
H&P Mobile Geochemistry, Inc.
Reporting Dilution
nalyte Readt Limit Units Factor Batch Prepared Analyzed Method Notes
SG-32 (E707065-11) Vapor Sampled: 12-Jul-17 Received: 17-Jul-17
Dichlorodifluoromethane(F12)
11
5-0 uWtn3 1 EG72106 21-Jul-17 22-Jul-17 EPATO-15
Chloromethane
3.9
2.1
Dichlorotetrafl uoroethane (F 114)
ND
71 "
Vinyl chloride
ND
2.6
Bromomethane
ND
16
Chloroethane
ND
8.0 "
Trichlorofluoromethane (Fll)
15
5-6
I,1-Dichloroethene
ND
4.0
I,1,2-Trichlorotrifluoroethane(F1134
ND
7.7
Methylene chloride (Dichloromethane)
ND
3.5 "
Carbon disulfide
ND
6.3 "
trans-1,2-Dichloroethene
ND
8.0 '
1,1-Dichloroethane
ND
4.1
2-Butanone (MEK)
ND
30 '
cis-1,2-Dichloroethene
ND
4.0 "
Chloroform
ND
4.9 "
1, 1, 1 -Trichloroethane
ND
5.5 '
1,2-Dichloroethane (EDC)
ND
4.1 '
Benzene
ND
3.2 '
Carbon tetrachloride
ND
6.4 "
Trichloroethene
ND
5.5 "
1,2-Dichloropropane
ND
9.4 "
Bromodichloromethane
ND
6.8 "
cis-1,3-Dichloropropene
ND
4.6 '
4-Methyl-2-pentanone (MIBK)
ND
8.3
trans-1,3-Dichloropropene
ND
4.6 "
Toluene
14
3.8 "
1,1,2-Trichloroethane
ND
5.5 '
2-Hexanone (MBK)
ND
8.3 `
DibromochIoromethane
ND
8.6 '
Letrachloroethene
ND
6.9 "
1,2-Dibromoethane (EDB)
ND
7.8 "
I,1 .1,2-Tetrachloroethane
ND
7.0 "
Chlorobenzene
ND
4.7 "
Ethylbenzene
ND
4.4
m,p-Xylene
11
8.8
Styrene
ND
4.3
o-Xylene
ND
4.4 "
Page 22 of 34

H&P Mobile
Geochemistry Inc.
2470 Impala Drive
Carlsbad, CA 9200
7,60-804-9678 Phone
760-804-9159 Fax
ECS Southeast, LLP - Greenshoro Project: ECS071717-16
1811 Kuger Blvd Project Number: Whitaker Park Reported
7,reensboro,NC 27407 Project Manager Mr_ RandyCavallier 26-Jul-1714:04
Volatile Organic Compounds by EPA TO-15
H&Y Mobile Geochemistry, Inc.
Reporting Dilution
nalyte I: ull Limit Units Factor Batch Prepared Analyzed Method Nbte:
, -J2 (E7U7065-11) Vapor Sampled: 12-Jul-17
Received: 17-Jul-17
Bromoform
ND 10
ug/ru-3 1 EG72106 21-Jul-17 12-kd-l7 EPA 10-15
I.1,2,2-Tetrachloroethane
ND 7.0
"
4-Fthyltoluene
ND 5.0
1,3,5--frimethylbenzene
ND 5.0
"
1,2,4-Trimethylbenzene
ND 5.0
"
1,3-Dichlorobenzene
ND 12
"
1,4-Dichlorobenzene
ND 12
1,2-Dichlorobenzene
ND 12
1,2,4-Trichlorobenzene
ND 38
Hexachlarobutadiene
ND $A
Surrogate: 1,2-Dichloroethane-d4
99.4 %
76-134
Surrogate- toluene-d8
102 %
78-125
Surrogate: 4-BromoJluoroben:7ene
98.D %
77-127
SG-33 (E707065-12) Vapor Sampled: 12-Jul-17
Received: 17-Jul-17
Dichlorodilluoromethane(F12)
11000
25 ugim3 EG72106 21-Jul-17 22-Jul-17 EPA TO- 15
Chloromethane
ND
10
Dichlorotetratluoroethane (F114)
ND
35 "
Vinyl chloride
ND
13 "
Bromomethane
ND
79
Chloroethane
ND
40 "
rrichlorofluoromethane (F 11)
ND
28 "
1, 1 -Dichloroethene
ND
20
1, 1,2-Trichlorotrifl uoroethane (F 113)
ND
39
Methylene chloride (Dichloromethane)
RD
18
Carbon disulfide
ND
32
trans-1,2-Dichloroethene
ND
40 "
I,1-Dichloroethane
ND
21
2-Butanone (MEK)
ND
150'
cis-1,2-Dichloroethene
ND
20 "
Chloroform
ND
25 "
I,LI- Trichlomethane
ND
28 "
1,2-Dichloroethane (EDC)
ND
21
Benzene
ND
16
Carbon tetrachloride
ND
32 "
TrichIoroetheue
ND
27 "
1,2-Dichloropropane
ND
47 "
Page 23 of 34

H&P Mobile
Geochemistry Inc.
2470Impala Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Pax
ECS Southeast, LLP - Greensboro Project: ECS071717-16
4811 Koger Blvd Project Number Whitaker Park Reported
Greensboro, NC 27407 Project Manager: Mr, Randy Cavallier 26-Jul-17 14:01
Volatile Organic Compounds by EPA TO-15
H&P Mobile Geochemistry, Inc.
Reporting Dilution
11\nalyte Result Limit 1 uu+ Factor Batch I4glured Analyzed Method Notes
SG-33 (E707U65-12) Vapor Sampled: 12-Jul-17
Received: 17-Jul-17
Bromodichloromethane
ND
34
ug/m3 " EG72106 21-Jul-17 22-Jul-17 ERA TO- 15
cis-1,3-Dichloropropene
ND
23
'
4-Methyl-2-pentanone (MIBK)
NO
41
trans-1,3-Dichloropropene
ND
23
"
Toluene
32
19
"
1,1,2-Trichloroethane
NO
28
'
2-Hexanone(MBK)
NO
41
"
Dibromochloromethane
ND
43
'
Tetrachloroethene
NO
34
1,2-Dibromoethane (EDB)
ND
39
'
1,1,1,2-'retrachloroethane
ND
35
'
Chlorobenzene
ND
23
'
Ethylbenzene
ND
22
m,p-Xylene
NO
44
"
Styrene
NO
22
"
o-Xylene
ND
�?
Bromoform
ND
52
1,1,2,2-Tetrachloroethane
ND
35
4-Ethyltoluene
ND
25
"
1,3,5-Trimethyl benzene
ND
25
"
1,2,4-Trimethylbenzene
ND
25
1,3-Dichlorobenzene
ND
61
1,4-Dichlorobenzene
ND
01
"
1,2-Dichlorobenzene
ND
61
"
1,24-Trichlorobenzene
ND
190
"
Hexachlorobutadiene
ND
270
'
Surrogate. 1,2-Dfchloroethane-d4
101 %
76-124
Surrogate: Toluene-d8
105 %
78-12_5 "
Surrogate: 4-Brotnofluoroben ene
95.4 %
77-127 ^
Page 24 of 34

H&P Mobile
Geochemistry Inc.
2470Impala Drive
Carlsbad, CA 92040
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast, LLP- Greensboro Project: ECS071717.16
4811 Koger Blvd Project Number: Whitaker Park Reported
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallier 26-Jul-17 14:01
Volatile Organic Compounds by EPA TO-15
H&F Mobile Geochemistry, Inc.
Reporting Dilution
Analyte Rew h Limit Units r A.1 Batch Prepared Analyzed Method No
SG-34 (E707065-13) Vapor Sampled: 12-Jul-17
Received: 17-Jul-17
Dichlorodifluoromethane (F12)
12000
25 ug m3 . EG72106 21-Jul-17 22-Jul-17 EPA TO-15
Chloromethane
ND
10 "
Dichlorotetrafluoroethane(F114)
ND
35
Vinyl chloride
ND
13 "
Bromomethane
ND
79 -
Chloroethane
ND
40 "
'Frichlorofluoromethane(FII)
ND
28
I,l-Dichloroethene
ND
20 "
1, 1,2-Trichlorotrifluoroethane (F 113)
ND
39 "
Methylene chloride (Dichloromethane)
ND
18
Carbon disulfide
ND
32
trans-1,2-Dichloroethene
ND
40 "
Ll-Dichloroethane
ND
21
2-Butanone (MEK)
ND
150 "
cis-l2- Diehl oroethene
ND
20 "
Chloroform
ND
25
1,1,l-Trichloroethane
ND
28 "
1,2-Dichloroethane (EDC)
ND
21
Benzene
ND
16 "
Carbon tetrachloride
ND
32 "
Trichloroethane
ND
27
1,2-Dichloropropane
ND
47
Bromodichloromethane
ND
34 "
cis-1,3-Dichloropropene
ND
23 "
4-Methyl-2-pentanone (MIBK)
ND
41 "
trans-1,3-Dichloropropene
ND
23 "
Toluene
36
19
1,1,2-Trichloroethane
ND
28 "
2-Hexanone (MBK)
ND
41
Dibromochloromethane
ND
43 "
Tetrachloroethene
ND
34 "
1,2-Dibromoethane (EDB)
ND
39
1,1,1,2-Tetrachloroethane
ND
35
Chlorobenzene
ND
23
Ethylbenzene
ND
22
m,p-Xylene
ND
44 "
Styrene
ND
22 "
o•Xylene
ND
22
Page 25 of 34

H&P Mobile
Geochemistry Inc.
24704mpa4a Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast, LLP - Greensboro Project: ECS071717-16
4811 Koper Blvd Project Number: Whitaker Park Reported:
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallier 26-Jul-17 14 01
Volatile Organic Compounds by EPA TO-15
H&P Mobile Geochemistry, Inc.
Reporting Dilution -
A nalyle
Result
Limit faits 4-acm Batch Prepared Analyzed Method Notes
SG-34 (E707065-13) Vapor Sampled: 12-Jul-17
Received: 17-Jul-17
Bromoform
ND
52 ugiin3 hfi"lnf. 21-Jul-17 L°-A&17 EPA TO-15
1,1,2,2-1'etrachloroethane
ND
35
4-Ethyltoluene
ND
25'
1,3,5-Trimethylbenzene
ND
25 "
1,2,4-TrimethyIbenzene
ND
25 "
1,3-Dichlorobenzene
ND
61
1,4-Dichlorobenzene
ND
61
1,2-Dichlorobenzene
ND
61 "
1,2,4-Trichlorobenzene
ND
190 "
Hexachlorobutadiene
ND
270 "
Surrogate: 1,2-Dichloroethane-d4
102 % 76-134 ^ '
Surrogate: Toluene-d8
103 % 78-125 '
Surrogate: 4-Bromofluorobencene
92.7 % 77-127
SG-35 (E707065-14) Vapor Sampled: 12-Jul-17
Received: 17-Jul-17
Dichlorodifluoromethane(F12)
310
5.0 ug/m3 I EG72106 31-Jul-11 22-Jul-17 EPA TO- 15
Chloromethane
ND
2.1 "
Dichlorotetrafluoroethane (F 114)
ND
7.1 '
Vinyl chloride
ND
26
Bromomethane
ND
16
Chloroethane
ND
8.0 `
Fri chl oro fl uorom ethane (F 11)
ND
5.6 "
1, 1 -Dichloroethene
ND
4.0
1, 1,2-Trichlorotrifluoroethane (F 113)
ND
7.7
Methylene chloride (Dichloromethanel
ND
3.5 "
Carbon disulfide
ND
6.3 "
trans-1,2-Dichloroethene
ND
8.0
1, 1 -Dichloroethane
ND
4.1 "
2-Butanone (MEK)
ND
30 '
cis-1,2-Dichloroethene
ND
4.0 '
Chloroform
ND
4.9 '
L1,1-Trichloroethane
ND
5.5 '
1,2-Dichloroethane (EDC)
ND
4.1 "
Benzene
ND
3.2 "
Carbon tetrachloride
ND
6.4 '
Trichloroethene
ND
5.5 '
1,2-Dichloropropane
ND
9.4
Page 26 of 34

H&P Mobile
Geochemistry Inc.
2470 Impala Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast, LLP - Greensboro Project: ECS071717-16
4811 Koger Blvd Project Number: Whitaker Park Reported
Greensboro, HC 27407 Project Manager: Mr. Randy Cavallier 26-Jul-17 14.01
Volatile Organic Compounds by EPA TO-15
H&P Mobile Geochemistry, Inc.
Reporting Dilution
Analyte Result Limit I nu Factor Batch Prepared Analyzed Method Nwes
SG-35 (E707065-14) Vapor Sampled: 12-Jul-17
Received: 17-Jul-17
Bromodichloromethane
ND
6.8
ug/m3 I EG72106 21-Jul-17 22-Jul-17 EPA TO-15
cis-1,3-Dichloropropene
ND
4.6
4-Methyl-2-pentanone (MIBK)
ND
8.3
"
trans-1,3-Dichloropropene
ND
4.6
"
Foluene
ND
3.8
1,1,2-Trichloroethane
ND
5.5
"
2-Hexanone(MBK)
ND
8.3
"
Dibromochloromethane
ND
8.6
"
Tetrachloroethene
ND
6.9
1,2-Dibromoethane (EDB)
ND
7.8
1, 1, 1,2-Tetrachloroethane
ND
7.0
"
Chlorobenzene
ND
4.7
"
Ethylbenzene
ND
4.4
"
m,p-Xylene
ND
8.8
"
Styrene
ND
4.3
"
o-Xylene
ND
4.4
"
Bromoform
ND
10
"
1,1,2,2-"Letrachloroethane
ND
7.0
"
4-Ethyltoluene
ND
5.0
"
1,3,5-Trimethylbenzene
ND
5.0
1,2,4-Trimethylbenzene
ND
5.0
"
1,3-Dichlorobenzene
ND
12
`
14-Dichlorobenzene
ND
12
1,2-Dichlorobenzene
ND
12
'
1,2,4-Trichlorobenzene
ND
38
"
Hexachlorobutadiene
ND
54
"
Surrogate: 1,2-Dichloroethane-d4
103 %
;'6-134
Surrogate: Toluene-d8
98,5 %
78-125 '
Surrogate: 4-Bromofluoroben_ene
93,5 %
77-127
Page 27 of 34

H&P Mobile
Geochemistry Inc.
2470 Impala Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast, LLP - Greensboro Project ECS071717-16
4811 Koger Blvd Project Number: Whitaker Park Reported
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallier 26-Jul-17 14D1
Volatile Organic Compounds by EPA TO-15
H&P Mobile Geochemistry, Inc.
Reporting Dilution
Aualyte RlMALh Limit 1 uu: bacon $atch Prepared Analyzed Alethod dotes
DLIP630 (E70706545) Vapor Sampled: I2-Jul-17 Received: 17-Jul-17
Dichlorodifluoromethane(F12)
13000
25 ugan3 EG72106 21-Jul-17 24-Jul-17 F.PATO-15
Chloromethane
ND
2.1 I 22-Jul-17
Dichlorotetrafluoroethane (F 114)
ND
7.1 "
Vinyl chloride
RD
2.6
Bromomethane
ND
16 "
Chloroethane
ND
8.0 "
Trichlorofluoromethane (Fll)
13
5.6 "
1,1-Dichloroethene
ND
4.0 "
I,12-'I'richlorotrifluoroethane(F1131
ND
7.7
Methylene chloride (DichloromethaneI
ND
3.5 "
Carbon disulfide
ND
6.3 "
trans-1,2-Dichloroethene
ND
8.0 "
1, 1 -Dichloroethane
ND
4.1 "
2-Butanone (MEK)
ND
30 "
cis-1,2-Dichloroethene
ND
4.0 "
Chloroform
ND
4.9
I,1,1-"Dichloroethane
ND
5.5 "
1,2-Dichloroethane (EDC)
ND
4.1 "
Benzene
ND
3.2 "
Carbon tetrachloride
ND
6.4
Trichloroethene
ND
5"5 "
1,2-Dichloropropane
ND
9.4
Bromodichloromethane
ND
6.8 "
cis-1,3-Dichloropropene
ND
4.6
4-Methyl-2-pentanone (MIBK)
ND
8.3 "
trans-1,3-Dichloropropene
ND
4.6 '
Foluene
17
3.8 '
1,1,2-Trichloroethane
IND
5.5
2-11exanone (MBK)
ND
8.3 '
Dibromoc oromet ane
N D
8.6 ' "
Tetrachloroethcne
ND
6.9 '
1,2-Dibromoethane (EDB)
ND
7.8 '
1-1,1,2- retrachloroethane
N D
7.0 '
Chlorobenzene
ND
4.7 '
Ethylbenzene
ND
4.4
m,p-Xylenc
ND
8.8 -
Styrene
ND
4.3 "
o-Xylene
ND
4.4 "
Page 28 of 34

H&P Mobile
Geochemistry Inc.
2470Impala Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast, LLP - Greensboro Project: ECS071717-16
4811 Koger Blvd Project Number: Whitaker Park Reported
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallier 26-Jul-17 14:01
Volatile Organic Compounds by EPA TO-15
H&P Mobile Geochemistry, Inc.
Reporting Dilution
Analyte
Result Limit Units Factor Batch nquima Analyzed MWiud N{'
DUP630 (E707065-15) Vapor
Sampled: 12-Jul-17 Received: 17-Jul-17
Bromoform
ND 10 ug,m3 I EG72106 21-Jul-17 22-Jul-17 EPA TO-15
1,1,2,2-Tetrachloroethane
ND 7.0 "
4-Ethyltoluene
ND 5.0
1,3,5-Trimethylbenzene
ND 5.0
1,2,4-Trimethylbenzene
ND 5.0
1,3-Dichlorobenzene
ND 12 '
1,4-Dichlorobenzene
ND 12 "
1,2-Dichlorobenzene
ND 12 "
1,2,4-Trichlorobenzene
ND 38 '
Ilexachlorobutadiene
ND 54 "
Surrogate: 1,2-Dichloroeihane-d4 103 % 76.04 '
Surrogate: Toluene-d8 9AJ % 784 7 i "
Swrogate: 4-Bromofluorohen_ene 94.1 °/a 77.17
Page 29 of 34

ECS070717-R Rn H&P ECS_20170706.xls
7127120171 0:30 AM
Radon Analysis (EPA Method GS:
Grab Sample/Scintillation Cell counting
For H&P/ECS
Client Project Numrer Whll3her
Samples C_ofleiCked by Randy Cax+allier
Sam_ple Dates: 7/05/17
Sample containers Tedlar hags
Location: Wirsston-Swan+ NC
Assurmed Site PreSSL 6.97 alen
Analysts: Doug Hammond
based on an elevation of 970 fi
Phone: [phone]
Time Zone adjtlalrrlent adO 10 decay time
email: [e-mail]
-
3 hours Collec,(EDT)
Run (PDTJ
summary Collection
Analysis Lab Duplicates
Date time
Date time . Vol run' Conc.. t1 siQ mean, t1 ssd, Notes.
Received 7/06/17
1 AS-1 7/5/2017 14:5 7/6/2017 10 57 120 1.60 0.18
2 SS-1 7/5/2017 1500 7/6/2017 11 02 40 642 32 041 1
Lab Dupe 7/5/2017 15:00 7/6/2017 11 03 40 _ 640 _- 32 .
Uncertainty given In p(,witer is based on counting statistics for low activity samplesr'r r rllgirl Stalysty sanwlee ruV-&Eumly is 15%
The Lower Limit of Detection for Rn (95% confidence level as recommended by EPA 402-R-95-012, Oct. 97) is 0.14 pCi/liter.
Results are reported based on standardization with NIST-traceable radon sources.
These results are for application of naturally -occurring radon as,a tracar of soil vapor intrusion, but are not intended for evaluation of radon ha_z_a_rd_s.
Results corrected to in situ pressure as noted above
Raw Data, Calculation factors, and Analytical Details
collection Analysis «wax
i Press. obs sig Decay stats Notes
.Sample ID Date Time Done r�nc Cwrtl ui I In h,r/Ne Vol runt _
(EDT{ . {PDT) cell/ch . girl , elf {cc) factor dpm dpm (hours) factor dpm/liter .pCilliteipCi/liter
Received 7/06117
'_AS-1 — --
_
7/5/2017 14.52
:4,011' 'r1b
02rd2 0.733 D.96 120' 1357 025 13W 23.1 ; 1;91 S5L 1,60 D1C
2 SS-1
7/5/267 15.116
7/6/2017111:02
213f22' 07,32 D.99 40" !'E74 5$i7 75523.0 1.190 1425 642 9
Lab Dupe
705e;Z17t7 15'IJQ
7/6/2017 11:03
A f 0 9v0 D.99 4 697 45.36 0.56 23A 1.190 1422 646 6
DKa'y rnnpdj�!ts En Mfj anro
4-Hy 08Ra q M
0.1813per day
Cone = ((0.4504)(1000)(obs dpm)(decay factor)(Press factor))/f(cc used)(He eff)(Air/He))
❑prl"mon irdnl grmbas ian
0-4504 pCi/dpm
-- ---
-Radon
(in pCi/liter)
._. _ —
91are5s tare ftigio s
Definitions
Cell/ch
_Counting cell and channel used
sig dpm
uncertainly (t 1 sig) in dpm based on counting statistics
He eff:
Cell and counter efficiency using helium matrix
Decay T:
time elapsed from sampling to analysis
AirAle
Correction for matrix counting gas density
Decay fact_o_r_:
Correction factor for decay from collection to analysis
Sample vol
Wiluim analyzed (cc)
dpm/liter:
Radon concentration in disinti�iul ons pol llanule par liter of
Rims 1a61ar
farmriirin to in situ pressure based on collection altitude
piC/liter;
Radon concentration in picoQuies per Illar
obs dpm
obsewea 1 adon activity (disintigrations. per minute) when analyzed count-stats:
uncertainty in observed radon based on counting statistics
s

RESEARCi1 8l ANAtyTICAI.
LAbORATORIES, INC.
Analyticcl/Process ConsultotlorB "U'm
Chemical Analysis for Selected Parameters and Sampling Locadons Idendfled as WPDA
An ECS Carolina& LLP Pro coUeeted 27laee 2011j
It. Semi-volatiteOrgania QneaoLllutiuo t;p.5 Gp_6 pap-2
EPA Method 8270 DNA Lima
Paevmeter fat�lac (M
OM
Ac enaplubenc 0.33 BQL BQL BQL
Aemephthylene 0.33 BQL HQL BQL
Anduacene 0.33 BQL BQL BQL
Bemoic Acid 6.67 BQL BQL BQL
Benzo(a)1UdhM xttc 033 BQL IDIJL BQL
Benm(b)fluoranthene 033 BQL BQL BQL
Benzo-Wfluoranthenc 033 BQL BQL BQL
Bertzo(Rhi)perylene 1133 BQL BQL BQL
Benm(a)pymrc 033 BQL BQL not
Benzyl Alcohol 333 1u)1. BQL BQL
Bi9(2-chloreethoxy)methane 6.7] BQL BQL R01
Bis(2-chloroethyl)Ww 0.33 BQL BQL BQL
Bis(2-chlomisopropyl)ether 033 BQL BQL BQL
Bis(2-ethyl-hexyl)phLhalate 0.33 BQL BQL BQL
4-Bromophcnyl phenyl ether t133 BQL BQL BQL
Benzyl butyl phthalate 0.33 BQL BQL BQL
4-Chlomanitine 1.63 BQL BOL BQL
4-Chloro-3-methylphenol 0.33 BQL BQL BQL
2-Chloronaphthalene 0.33 BQL BQL BQL
2-Chlorophenol 0.33 BQL BQL BQL
4-Chlorophenyl phenyl ether 0.33 BQL BQL BQL
Clvvseoc 0.33 LIQL. BQL BQL
Dibatm(a,h)ertLhracene 0.33 BQL BQL BQL
Dlbumofunm 0.33 BQL BQL BQL
Di-N-Butyl phthalate tk3j BQL OQL BQL
1,2-Dichlombenzene Ik33 BQL 15Q1 BQL
1,3-Dichlorobenzene 0.33 BQL BQL BQL
1,4-D)chlaobcnune 0.33 BOL BQL BQL
3,3-Dichlorobenzidine 0.66 BQL BQL BQL
2,4-Dichlomphmol 0.33 HQL. BQL U()L
Diethyl phthalate 0.33 BQL BQL BQL
2,4-DFmelhylphenol 0-13 BQL BQL W 7L
Ditnethyl phdmlatc 0.33 Sf)l BQL BQL
4,6-Dint Fo-2-methylphenol 1.65 Fvljj BQL BQL
44-Dinitropltmol 1.65 BQL BQL I if fl
2,4-DinitrotMuene 0.33 BQL BQL BQL
2,6-Dinitrotoluene 033 BQL BQL BQL
Di-N-Octyl phthalate 033 BQL BQL BQL
A26be 333 BQL BQL BQL
Fluonual me 033 BQL BQL BQL
fluovew 0.33 BQL BQL BQL
Hexachlorobmzene 0.33 1V`I. BQL BQL
Hexachlorobutadiene .3.31 BQL BQL BQL
Hexachfuocyclopentadim 0.33 BQL BQL BQL
Hexachlotoetha c 0.33 BQL BQL BQL
Indeno(1,2,3-cOpyrmc 0.33 BQL BQL BQL
Isophorone 0.33 BQL BQL BQL
2-Methylnaphthalme 033 BQL BQL BQL
2-Methylphenol 1.65 BQL BQL BQL
4-Methylphenol 1.65 BQL BQL 2(p
Nikab=nc 4131 BQL BQL BQL
2-Nitmphenol 033 BQL BQL BQL
41MEIapl-re' 165 BQL 1301- BQL
N-Niumodiphenylamine 033 BQL BQL L101
N-nitrosodi-n-propylamine 033 BQL BQL BQL
Pentachlorophmd 1.6% BQL BQL BQL
Mcnand"ne 033 M)1 BQL BQL
Phenol 0.33 Ft01 BQL BQL
033 BQL BQL BQL
1,2A-Trichlorobenzcnc 0.33 BQL BQL BQL
2,4,6-Trichlorophenol 0.33 BQL BQL BQL
2-Mcthyl-4,6-dinitrophenol r.65 HQ; BQL FLp1
^. ^vit!iux 1.65 BQL BQL BQL
1,2-Diphmylhydmt7ne 1.65 BQL BQL BQL
N-Ninwadimethylamine 0.33 BQL BQL Hol
1-Methy1naphthalmc 0,33 BQL BQL BQL
Dilution Factor I I
Sample Number 36485-05 36485-06 36185-11
Sample late 06/27/17 06/27/17 0627/17
Sample Time (hrs) 1050 1105
Date Extracted 06/30/17 06/30/17 06/30/17
Date Analyzed 06/30/17 06/30/17 06/30/17
Time Analyzed 2026 2054 21"
Surrogate Recovery Range
(2-Fluoropbetrol) (21-1100%) 62% 70% 70%
(Phenol-d6) (10-110%) 61% 69% 69%
(Nitrobenzene-d5) (35-1140/,) 69% 102% 82%
(2,4,6-TrlbromophenoQ (10-123%) 590A 68% 71%
(2-Fluorobiphenyl) (43-116%) 609/a 95% 94%
(4-Terphenyl-04) (33-141%) 71% 80"/. 80a/
Quandtation limits must be multiplied by the dilution factor BQL Below Quantitation Limits
mg/kg - milligrams per kilogram -parts per million (ppm) BNA - Bare -Neutral Acid Extraetables

OPUININd
RESEARCh & ANAL TICA1
LAbORATORiES, INC. Oi?
Analytical/Process Consultations
Cheinical Analysis for Selected Parameters and Sampling Locations Identifier! as WPDA
(An ECS Project, collected 27 Jane 2017)
1• Pesticides/PCB's GP-1 GP-2 GP-3 G1`4 GP-7 GP-8 GP-9 Dup-I
EPA Method 8081/8082 Quantitation
Parameter Limit (me/kz) ma/k m /k (me/k2) ra/k (me/kg) (mg/kg) !n y ;k
Aldrin
0.002
13QI-
BQI.
0.022
BQI,
BQI,
13QI.
13Q[,
0.212
alpha-131IC
0.002
13Q1
BQI,
BQL,
13QI,
13QI,
13Q1,
13QI.
BQL
beta-1311C
0.001
I3QL
BQL
13QI,
13QI,
13QI.
13QI,
I3QL,
BQL
delta-131IC
0.002
BQL
BQL
BQL
BQL
BQL
l3Ql,
BQI,
BQI_,
gamma-I31IC(Lindane)
0.002
13Q1,
BQL
BQL
BQI,
BQI,
0.010
BQI,
BQ[.,
Chlordane, "Total
(,020
I3QL
BQL
BQL
I3QL
13Q1,
BQL
BQL
BQL
4A'-DDD
O.i)02
BQL
BQI,
BQI,
0.002
BQI,
0.021
BQI,
BQL
4.4'-DDE
0.002
0.082
0.009
0.021
0.014
0.002
0.310
0.016
0.018
4,4'-DD'I'
0.002
0.045
0.026
0.040
0.042
0.004
0.809
0.013
0.040
Dieldrin
0.002
BQL
BQI,
0.400
13QI,
BQL
BQL
BQL
1.23
Endosullan 1
0.002
I3QL
BQL
BQL
13Q1
BQI,
BQL
BQL
BQL,
Endosulran II
0.002
[3Q1,
BQL
BQL
BQL
13QI.
BQI.
BQL
BQ[.
Endosull'an sulfate
0.002
BQL
BQL,
BQL
13QI,
13Q1,
BQL
BQL
BQL,
Endrin
0.002
13QI,
BQL
BQL
13QI,
BQL
BQI.
BQL
0.007
Lindrin aldchNdc
{).002
BQL
I3QL,
BQL
I3Q1.
13QI.
13QI,
BQL
BQI,
Ileptachlor
0.002
I3QL
BQL
BQL
13QI,
BQL
13QI.
BQL
BQL
I leptachlor epoxidc
0.002
BQL,
BQL
BQI.
BQI,
BQI,
BQL
BQL
0.003
Nlethoxychlor
0.002
13Q1,
BQL
13QI-
13QI,
13Q1.
BQL
BQL
BQL
Toxaphene
U00
BQL
BQL
BQL
BQI.
BQI,
BQI_,
BQL
BQL
Dilution Factor I I I I I I I
Sample Number
36485-01
36485-02
36485-03 36485-04
36485-07
36485-08
36485-09 36485-10
Sample pate
06/27/17
06/27/17
06/27/17 06/27/17
06/27/17
06/27/17
06/27/17 06/27/17
Sample Time
093j
0950
1010 1020
1 120
1 136
1200 --
mg/kg = milligr<uns per kilogram - parts per million (ppm) BQL = Below Quantitation Limits

RESEARCH & ANAlyTICAI Report of Analysis
.
LA ORATORIESF INC. 7/7/2017
For: ECS+
*y' i
.�••y,
4811 Koger Blvd
r,C
Greensboro, NC 27407
rar: NC934Ito `
Attn: Randy Cavallier
=, s
r �
�D A0V
Client Sample ID: WPDA GP-10
Lab Sample ID:
36485-13
Site: ECS
Collection Date:
6/27/2017 12:20
Parameter
Method
Result
Units
Analyst Analysis
Date/Time
Mercury, Total
SW846 7471 B
0.095
mg/kg
SK
6/28/2017
Barium, Total
SW846 Method 6010 C
54.0
mg/kg
JC
7/5/2017
Cadmium, Total
SW846 Method 6010 C
<0.124
mg/kg
JC
7/5/2017
Chromium, Total
SW846 Method 6010 C
19.2
mg/kg
SK
7/7/2017
Arsenic, Total
SW846 Method 6010 C
5.72
mg/kg
SK
7/7/2017
Lead, Total
SW846 Method 6010 C
16.9
mg/kg
JC
7/5/2017
Selenium, Total
SW846 Method 6010 C
<1.24
mg/kg
JC
7/5/2017
Silver, Total
SW846 Method 6010 C
<1.24
mg/kg
JC
7/5/2017
NA = not onolyzed
P.O. Box 473 106 Short Street Kernersville, North Carolina 27284 Tel: [phone] Fax: [phone] www.randalabs.com Page 1

RESEARCh & ANA1yTICA[
LAbORATORIESF INC.
For: ECS
4811 Koger Blvd
Greensboro, NC 27407
Attn: Randy Cavallier
Report of Analysis
7/7/2017
JOil BIP1111
•fl7 N(_h34 F�
t NC4,3/701
MM
r
'•A,
* #trrrifiWIL
Client Sample ID:
WPDA Dup-3
Lab Sample ID:
36485-14
Site:
ECS
Collection Date:
6/27/2017
Parameter
Method ._
Besull
Units
Anal st Analysis DatelTime
Mercury, Total
SW846 7471 B
0.087
mg/kg
SK
6/28/2017
Barium, Total
SW846 Method 6010 C
46.6
mg/kg
JC
7/5/2017
Cadmium, Total
SW846 Method 6010 C
<0.120
mg/kg
JC
7/5/2017
Chromium, Total
SW846 Method 6010 C
17.8
mg/kg
SK
7/7/2017
Arsenic, Total
SW846 Method 6010 C
5.42
mg/kg
SK
7/7/2017
Lead, Total
SW846 Method 6010 C
17.6
mglkg
JC
7/5/2017
Selenium, Total
SW846 Method 6010 C
<1.20
mg/kg
JC
7/5/2017
Silver, Total
SW846 Method 6010 C
<1.20
mg/kg
JC
7/5/2017
NA = not analyzed
P.O. Box 473 106 Short Street Kernersville, North Carolina 27284 Tel: [phone] Fax: [phone] www.randalabs.com Page 1

Analytical Environmental Services, Inc
Date: 6-Jul- 17
Client: R&A Laboratories
Client Sample ID:
36485-01
Project Name: WPDA
G ?• (
Collection Date:
6/27/2017 9:35:00 AM
Lab ID: 1706S59-001
Matrix:
Solid
Aneltysee
Rinull
Reporting
10ntt1 Units BatchlD
Dilution
Date Analyzed Analyst
Limit
Factor
CHLORINATED HERBICIDES
SW9151A
(5 3550C)
2,4,5-T
BRL
40
u8/K8-dry 244887
1
07/04/2017 01:11
AW
2,4,5-TP (Silvex)
BRL
gl
VKg-dry 244887
1
07/04/2017 01:11
AW
2,4-D
BRL
411
u8/K8-dry 244887
1
07/04/2017 01:11
AW
2,4-DB
BRL
210
us/Ke-dry 244887
1
07/04/2017 01:11
AW
Dalapon
BRL
400
ug/Kg-dry 244887
1
07/04/2017 01:11
AW
Dicamba
BRL
41i
u9/K8-d,y 244887
1
07/04/2017 0 1: 11
AW
Dichlorprop
BRL
40
ug/Kg-dry 244887
1
07/04/2017 01:11
AW
Dinoseb
BRL
100
ug/Kg-dry 244887
1
07/042017 01:11
AW
MCPA
BRL
,}urxl
ug/Kg-dry 244887
1
07/04/2017 01:11
AW
MCPP
ERE
44.100
ug/K8-ft 244887
1
07/04/2017 01:11
AW
Sum. DCAA
717
46.5-135
9GRBC 244887
1
07/04/2017 01:11
AW
PERCENT MOISTURE D2216
Percent Moisture
I8.1
n
YL% R346NO
1
07/05/201713:00
VFl
quolMrr. • %id= — maximimco am inalevel
BRL Below rcpafiog limn
H HoWmg times for preparation or analysis e:oceded
N Aoabyte not NEL AC catdLsd
B Amlyto detected in the associated method blank
t +ice Lr than llaaull Y4L-d
B Fadmmed (vahm above qumtitation rmge)
S Spike Recovery outride limits due to mmht
Nrrr See use narnave
NC Notcoa6rmed
1r man knaall Yalu
J Estimated vabue detectcd below Reporting Limit
3of13

Analytical Environmental Services, Inc Date: 6-Ikkl-] 7
Client: R&A Laboratories Client Sample ID: 36485-02
Project Name: WPDA .'Z Collection Date: 6/27/2017 9:50:00 AM
Lab ID: 1706S59-002 Matrix: Solid
Analyses Basalt RLirting imitt Quo Unit; Batrhm DFactooi
LDate Analyzed Analyst
CHLORINATED HERBICIDES SW8151A (SW3550C)
2,4,5-T
13R.1
4D
ug/Kg-dry
244887
1 07/04/2017 01:43
AW
2,4,5-TP (Silvex)
BRL
e0
ugXg-dry
244887
R 07/04/1017 01:43
AW
2'¢D
BRL
40
ugag-0ry
244887
t 07/042017 01:43
AW
2,4-DB
BRL
200
ug/icg-dry
244887
1 07/04i2017 01:43
AW
Dalapoo
BRL
400
UWX9-dry
244887
t 07/04/2017 01:43
AW
Dicamba
UR1
40
SIC&drY
244887
1 07/01201701:43
AW
Dichlorprop
BRL
40
ug/KB-drr
244887
1 07/042017 01:43
AW
Dinoseb
BRL
100
ug/Kg-dry
244887
1 07/042017 01:43
AW
41{.'14k
BRL
4DDO
ugtKg-ft
244887
1 07/042017 01:43
AW
Me??
BRL
4000
ug/K8-fY
244887
1 07/04/2017 01:43
AW
Sun- DCAA
122
46.5-135
%REC
244887
t 07/042017 01:43
AW
PERCENT MOISTURE 11 T2 J 6
Percent Moisture
16.7
n
1YM
07/05201713:00
%elf
04MM ra. ' Wu exacda maximum cmtemivant Iced
BRL Bduw rgmr=g limit
H Hdding Lima fw prgnration or mdyaia exceeded
N Auelyte not NELAC m6flad
B Aoalyte ddcaW is the aaocirtod method btaa4
Gre&W than Rcmk value
E Ert(mand (value above qumtit— rmge)
S SpaDc> Y mdside limits dae to matrix
Nary See eau uantive
NC Not -a&mod
Lena thm Rpult vdhte
Elffim ed vahte detoctcd bdtm Reporting Limit
4of13

Analytical Environmental Services, Inc
Date: 6-Jul-17
R&A Laboratories
jProject.Name::WPDA
G �,�
Client Sample ID:
Collection Date:
36465-03
6/27/2017I0:10:00AM
1706559-003
M21rh:
Solid
Anolym
R:eaul!
Reporting
limit
Qual UFdIH
BalehlD
Dilation Date Aaalyat
Factory
CHLORINATED HERBICIDES 5W$1SIA
(SW3550C)
2,4,5-T
2,4,5-TP (Silver)
BRL
39
��
244887
1 07/042017 02:15
AW
2,4-1)
BRL
39
nB/cB-drY
244887
1 07/04/2017 02:15
AW
2,4-DB
BRL
39
uVX8dry
244887
l 07/04201702:15
AW
Dalapon
BRL
200
uWKSdry
244887
1 07/042017 02:15
AW
Dicamba
BRL
390
u8/KB-dry
24e887
I 071042017 02:I5
AW
Dichlocprop
BRL
39
ag/lcg&y
'ze'-Imp
i 07/04/2017 02:15
AW
Dinoseb
BRL
39
ugMg-dry
244887
1 07/042017 02:15
AW
MCPA
BRL
!r i
%/Kg-drY
244887
1 07/042017 02:15
AW
13RL
3900
uWK&dry
244887
1 07/04/2017 02:15
AW
MCFP
BRL
3900
ugXg-dry
244887
1 07/042017 02:15
AW
Surn DCAA
139
465-135
%REC
2UM7
1 07/04/2017 02:15
AW
PERCENT MOISTURE D2216
Percent Moisture
14 1
1.
R346"O
1 07/052017 13:00
b9 i
veloe eat maaimam comammaot ievd
E Pa mwmd (value above gonad suw tango)
BRL BdM rq w=g limit
S *1w Recovery mrtaW a Iimiu due to mat&
H Hohiing Lima (or Fepaation m aoalyaia e:eeeded
Nan See tone vatalive
N Awlyie oot NELAC cadfw
NC Not cane mad
11 Aoalytc ddwted m the luocued method blink
Lan d— Rauh value
Crtatcr than Rank vahm
Eirimetod vahm dewacd blow Reporting Ltmit
5of13

Analytical Environmental Services, Inc
BMW
6-Jul-17
Client: R&A Laboratories
Client Sample ID:
36485-04
Project Name: WPDA (%
Collection Date:
6/27/2017
10:20:00 AM
Lab ID: 17065594)04
1
Matrix:
Solid
Aaalyw
11twult
R�rting
Qual Units BatchlD
Dilutitor on
Date Analyzed
Analyst
CHLORINATED HERBICIDES SW8151A
(SW3550C)
2,4,5-T
BRL
39
ug/Kg-dry 244997
1
07/04/2017 02:46
AW
2,4,5-TT (Silvex)
11RL.
39
t WX&dry 244897
1
07/04/2017 02:46
AW
2,4-D
BR-L
39
us/Kg-dry 244887
1
07/04/2017 02:46
AW
2,4-1313
BRL
200
ug/Kg-dry 244997
1
07/04/2017 02:46
AW
Dalapon
BRL
390
u&%S-dry 244887
t
07104/2017 02:46
AW
Dicamba
BRL
39
ug/Kg-dry 244897
L
07/04/2017 02:46
AW
Dichlorprop
BRL
39
ug/xg-dry 244887
1
07/04/2017 02:46
AW
Dinoseb
BRL
100
ug/Ke-dry 244887
1
07/04/2017 02:46
AW
MCPA,
RIM
3900
ug/K9-dry 244887
1
07/04/2017 02:46
AW
MCP?
BRL
3900
ui;Xg-dry 244887
1
07/04/2017 02:46
AW
Surr: DCAA
127
46.5-135
a1AEC 244887
z
07/04/2017 02:46
AW
PERCENT MOISTURE D2216
Percent Moisture
15.1
0
W = RU464413
1
07/05/2017 13:00
VIl
Q-11-I.ra; Value—coedt maximum conummant level E FiVmned (value above 9uan iw+oo tango)
BRL Below reporting I®t S spice Raovay cawde Emits due to maim
H Holding times for ptepuatian or analyais exceeded Ntm bee rise �
N Awbu not NELAC ccitified NC Not continued
B Analyte dacclod in the aseoointad method blank . L+ d fun 8caall 411ue
❑��r Jws oW L y Lc J Estimated value detected below Reporting Umit
6of13

Analytical Environmental Services, Inc
Date: 6-Jul-17
Client: R&A Laboratories
Project Name: WPDA
G ' 7
Client Sample ID:
Collection
36485-07
Lab D): 1706559-005
Date:
6/27/2017 11:20:00 AM
Matrix:
Solid
Analyw�l
Rcaull
Reporting
Limit
Quaff Unib &1tddi)
Dilation Date Analyzed Analyst
Factor
CHLORINATED HERBICIDES SW8151A
(SW3550C)
2,4,5-T
BRL
4r
uBXR-dry 244887
l 07/04/2017 03:18
AW
2,4,5-TP (Silvex)
BRL
40
ug/Kgdry 244887
1 07/04/2017 03:18
AW
2,4-13
BRL
all
49X8-d4' 244887
1 07/04/201703:18
AW
2,4-DB
BRL
210
ug/Kg-dry 14KIl'J
I 07/04/2017 03:18
AW
Dalapon
BRL
40
rr 4-dw 244887
1 07/04/2017 03:I8
AW
Dicamba
BRL
40
ug/Kg-dry 244887
1 07/04/2017 03:18
AW
Dichlorprop
BRL
40
U8X8-0+9 244887
1 07/04n017 03:18
AW
Dinoseb
BRL
100
ug/Kg-dry 244887
1 07/0412017 03:18
AW
MCPA
BRL
4000
ug/Kg-dry 244887
1 07/04/2017 03:18
AW
MCPP
BRL
Ninn
u9X8'dry 244887
l 07/04/2017 03:18
AW
Surf: DCAA
101
46.5-135
°/.REC 244887
i 07/04/2017 03:18
AW
PERCENT MOISTURE D2216
Percent Moisture
l Rr1
?i
„ s; IL146 0
1 07/05/2017 13:00
VH
value exceeds muimum ooma®nant laud
E. Betimeted(value above goentiulltm range)
--
BRL Balm repotting limit
S Splice Recovery aWeidol®Ju due Wmaniz
it Holding time for preWatioo m analyaiu micaded
N— ga caec narrative
N AnLyt¢ Det NRI.AC can9ed
NC Not coa6tmed
B Analyte dead m the a wmated method blank
- Leas dran Rash value
Greater than Remit vabta
FAHnu ned value detected blow Reporting Limit
7of13

Analytical Environmental Services, Inc BRte; 6-Jul-17
C7i42331: R&A Laboratories Client Sample ID: 36485-08
Project Name: WPDA G p - Collection Date: 6/27/2017 11:36:00 AM
Lab ID: 1706559-006 Matrix: Solid
Aunlyar, Ream# Reporting Quol Units Roub[U Dilation Date Analyzed Analyst
Limit Factor
CHLORINATED HERBICIDES
SW8151A
(SW3556C)
2,4,5-T
BRL
-Al
ug/Kg-dry
244887
i 07/04/2017 03:49
AW
2,4,5-TP (Silvex)
BRL
40
ug/Kg-dry
244887
1 07/042017 03:49
AW
2,4-D
BRL
41)
ug/Kgdry
244887
1 07/04/2017 03:49
AW
2,4-DB
BRL
200
u&%9-dry
244887
1 07/04/2017 03:49
AW
€ dhipott
FIR].
a0a
u9/K8dry
244887
1 07/04/2017 03:49
AW
Dicamba
111u,
Ala
ug/Kg-dry
244887
1 07/042017 03:49
AW
Dichlorprop
BRL
.10
ug/Kg-dry
244887
1 07/042017 03:49
AW
Dinoseb
BRL
100
u9/K9-dry
244887
1 07/042017 03:49
AW
MCPA
BRL
4000
ug/Kg-dry
244887
1 07/04/2017 03:49
AW
MCPP
BRL
41M
ag/Kg-dry
244887
1 07/042017 03:49
AW
Surr: DCAA
140
46.5-135
S %REC
244887
1 07/04/2017 03.49
AW
PERCENT MOISTURE D2216
Percent Moisture 16.9 n R34MO 1 07/052017 13:00 YH
on;unm: IVilue areccda mmrimum contaminant level
BRL Below rcpmtmg lumt
H Holdmg times for preparation or analyst, ucaeded
N Analyto not NELAC outi6ed
B Aoalyte detected to the aasodared method blank
t Uceaara ktim Remir whir
E Estimated (value above Quamitarlon age)
S Sp0ce Recovery outride limits due to mania
Hue %et tar iurrel-e
NC Not confirmod
Lese than Result value
J Estimated value demoted below Reporting Limit
8 of 13

Analytical Environmental Services, Inc Date: 6-Jul-17
Client: R&A Laboratories Client Sample ID: 36495-09
Project Name: WPDA G T • I Collection Date: 6/27/2017 12:00:00 PM
Lab ID: 1706S59-007 Matrix: Solid
Am p a Result Reporting Qarnl 4.tllltb RMChlA Dilution Date Analyzed Analyst
Limit Factor
CHLORINATED HER13ICEDES SW8151A (SW3550C)
2,4,5-T BRL 42 ug/Kg-dry 244887 I 07/042017 04:20 AW
2,4,5-TP (Silvex) BRL 43 ug/Kg-dry 244887 I 07/042017 04:20 AW
2A-17 BRL 42 ug/Kg'ary 244887 1 07/042017 04:20 AW
2,4-DB EIRE. 210 ug/Kg-dry 244887 1 07/04201704:20 AW
Dalapon NO. 420 ug/Ks-dry 244887 1 07/042017 04:20 AW
Dicamba BRL a: ttg/Kg-dry 244887 1 07/042017 04:20 AW
Dichlo>iprop BRL 42 u^g-dry 244887 1 07/042017 04:20 AW
Dinoseb BRL 110 ug/Kg-dry 244887 1 07/042017 04:20 AW
MCFA BRL 4200 ug/Kg-0ry 7.44RR7 1 07/042017 04:20 AW
MCPP BRL 4200 ug/Kg-dry 244887 1 07/042017 04:20 AW
Surr. DCAA 95 46.5-135 aAREC 244997 1 07/04201704:20 AW
PERCENT MOISTURE D2216
Percent Moisture wEOA R3461w10 1 07/05201713:00 vH
Value eaeeeda—i-- conlamimnt level
BRL Below tepmting Omit
H Holding times far preparation or aaalyals exceeded
N Anstyn not NELAC catiE d
B A=W detected in the mod" mctbod blank
[i. tee. 9 Re .dt Id-
E Fil®eted (value above queotitalim nape)
S Sp&c Rarovuy outaide limits due to matrix
NC Rat cmtfuns-0
t Less than Result value
I Eathnated value detected below Reporting Litnit
9of13

Analytical Environmental Services, Inc
iE
R&A Laboratories
Name: WPDA
1706559-008
Analyues
Date: 6-Jul-17
Client Sample ID: 3"85-10
Collection Date: 6/27/2017
Matrix: Solid
Result Reporting Owl i'ults BatchID Dilution Date Analyzed Analyst
Limit Factor
CHLORINATED HERBICIDES SW9151A (SW3550C)
2,4,5-T
BRL
40
ug/Kg-dry
244887
I 07/042017 04:52
AW
2,4,5-TP (Silvex)
BRL
40
ug/Kg-dry
244MI
I 07/042017 04:52
AW
2,4-1)
BRL
40
ug/Kg-dry
244887
1 07/042017 04:52
AW
2,4-DB
RRL
200
ug/Ktdry
244887
1 07/04/2017 04:52
AW
Dalapon
BILL
400
ug/xg-dry
244887
1 07/042017 04:52
AW
Dicamba
BRL
40
ug/Kg-dry
244887
1 07/042017 04:52
AW
Dichlorprop
1#Ri.
40
ug/Ktdry
244887
1 07/042017 04:52
AW
DiWMCI}
BRL
100
ug/Kg-dry
244887
1 07/04/2017 04:52
AW
MCJ3A
RRI,
4000
USTg-dry
244887
1 07/042017 04:52
AW
MCPP
BRL
4U00
ug/Kg-dry
244887
1 07/04/2017 04:52
AW
Surr. DCAA
102
46.5435
%REC
244887
1 07/04201704:52
AW
PERCENT MOISTURE D2216
Percent Moisture 16.5 0 Wrw [l '6q,Grl 1 07/05201713:00 Vir
Vdue exaodt —xi-- eomaminw tend
BRL Blew mporung limit
H Holding times for preparation or analysis exceeded
N Aulyte not NELAC ce tifiod
B Annlyoe detected in the anoeistod method blink
thf u.1. R-6 1 ..k4
B Esth ated (value above quamhation rscrge)
S SpOm Recovery outside limits due to matrix
Narr Seeme -urs ve
NC Not confirmed
Lets than Result vahre
+ &dratted value detected below Reporting Lfmlt
10 of 13

aCcAnalytical
wwwpeoelabsoom
I
SAMPLE ANALYTE COUNT
Project: WPPA
Pace Project No.: 92346216
Pecs Analy d Services, LLC
98001enoeyAve. Suite100
HuntersrtUe, NC 28078
(704)8759092
Analytes
L3b 16 SarnP1a IA mcmud Auaiyeft Reported Laboratory
92340216001 36485-13 D� I� ASTM D2974-87 KDF 1 PASI-C
T EPA7196 CJH1 1 PASI-A
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
wilhout the written consent of Pace Analytical Services, LLC. Page 3 of 11

ceAnalytical
w4+R'Fw--Li 1oaVn
ANALYTICAL RESULTS
Pace Analytical Services, LLC
9800 Wncey Ave. Suite 100
Huntersvllte, NC 28078
[phone]
Project: wppr%
G P - 1 c>
Pace Project No.: 92346216
Sample: 36485-13
Lab ID: 92346216001 Collected: 06127/1712:20 Received: 06/30/1710:55 Matrbt: Solid
Results reported on a 'dry weight'
basis and are adjusted for percent moisture, sample Size and any dilutions.
Parameters
Results Units Report Limit DF Prepared Analyzed CAS Na_ n Sal
Percent Moisture
Analytical Method: ASTM D2974-87
Percent Moisture
12.6 °A 0.10 1 07/05/17 09:14
7198 Chromium, Hexavalent
AnaWcal Method: EPA 7196 Preparation Method: EPA 7196 Modified
Chromium, Hexavalent
ND mg/kg 5.4 1 07/08/17 02:00 07/08/17 02:00 18540-29-9
Date: 07/08/201710.45 AM
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
wfthout the written consent of Pace Anelytical Services, LLC.
Page 4 of 11

RESEARCii 8l ANAy'fICAt
O UbORATOR1E5t INC.
� O O fu+�Yca+ti2wcM�arbw
Chemical Analysis for Selected Parameters and Sampling Location Identyled as WPDA
�d�R��£�FiAUTs'�P,Prnlecr.selfirr�d�.7'.J�i�e��l7l _ - - --
LVolotHeOrgauha
Quantitation
GWA
EPA Method 8260 B
Limit
NFOURSU
i dhl
iE&
Acetone
:5
BQL
Acrolein
Irxl
BQL
Acrylonitrile
103
BQL
Ltmrrr-
0.5
f)OF
Bromoben----
LI S
BQL
Bromochtaromerhanc
0.5
BQL
BromodichloromeUtane
U }
BQL
Hrnmofnrm
F 0
BQL
Urraiciiicrh=
1.0
BQL
2-Butmwne
73.
BQL
Carbon Disulfide
5.0
BQL
Carbon Tetrachloride
0.1
&0
Chloroberume
125
BQL
clJolaedwn
1.0
BQL
2-Odwoethyl vinyl ether
so
BQL
Chloroform
0 1
L)A
Lblaon.arj omw
L 0
BQL
2-Chlorotoluene
0.5
BQL
4-Cldorotoluene
0.5
BQL
Cis-1,2-Diehloroedune
95
BQL
Cis-1,3-Dichloropropene
0.5
BQL
1,2-Dibromo-3-ChloroprapenejDBCP)
5.0
BQL
1,2-Dibromoethane(EDB)
0-1
BQL
Dibromacldaromedtsne
0.5
BQL
DAna--19ngll-nrf
0.5
BQL
1,2-Dichlorobename
0.5
BQL
1,3-Diehtorobenune
0.5
BQL
1,4Dichlorobemene
03
BQL
1,1-Dichloroedum
0.2
1.0
I.2-Dichloroedrane
0.5
BQL
),I-Dichlortrcthene
0.5
12
DichloroBmvomethanc
0.5
BQL
1,2-Diehloropropane
03
BQL
1,3-Diehloropropane
03
BQL
2,2-Diehlorepropane
03
BQL
%I-Dichlorapropene
05
BQL
Ethyl Bamene
0.5
BQL
2-ttexwmc
5.0
BQL
PF
0.5
BQL
I-Propylbenzene
0.5
BQL
4Methyl-2-Parttamone
3.0
BQL
MetbylIodide
1.0
BQL
Methylene Chloride
5.0
BQL
MTBE
0.5
BQL
NapMhelene
0 S
BQL
N-BuWbcn=ne
0.5
BQL
N-Propylbameae
4
BQL
P-Isopropyholuene
4 J
BQL
See-BMylbmz=
0.5
BQL
s.y -
0}
BQL
Teri-Butylbennene
9.5
BQL
1,1,1,2-Tetrachloraetbene
01
BQL
1,1.2,24cuitehloroethene
0.5
BQL
Fru e:iJuFCKi��
0.5
BQL
Toluene
05
BQL
Trans-1,2-Diehloroethem
AS
BQL
Trans-1,3-Dichloropropene
0.3
BQL
Trans-1,4-Diehloro-2•butme
5.0
BQL
1,2,3-Trichlorobmrene
0-5
BQL
IA4Triddoroben ene
0.5
BQL
1,1,1-Tridrlorodhme
05
511.7
1,1.2-Triehlorodhmu
0.5
BQL
Triehlmoethme
05
BQL
Trichlorolluoramethane
01
BQL
IA3-Tridtloroproparre
0.5
BQL
1,2,4Tnmethylba=ne
0.5
BQL
1,3,5-Trimethylb-
0 $
BQL
Vinyl Acetate
F 0
BQL
Vinyl Chloride
0.5
BQL
Total Xylmes
10
BQL
I JIFAKw :--1-
1
Sample Number
36485-12
Sample Date
0627/17
Sample Time (brs)
1050
Date Analyzed
07/03/17
Time Analyzed
2029
Surrogate Recovery (DBFM)
Range (70-130a/o)
108%
Surrogate Recovery (Toluene-d8)
Range(70-130%)
109%
Surrogate Recovery(4BFB)
Range(70-130%)
980/.
Quc=wm retch mum be mu4i W by ata an faclm
BQL = Below Quaatrution Limit ppb ' p- per bah-
wasat

RESEARCh & ANA1yTICA1
LABORATORIES? INC.
Analytical/Process Consultations
Chenucal Analysis for Selected Parameters and Sampli►ig Location Identified as WPDA
1-tn i ffg(frta ' TJ
it. Semi -Volatile Organics
Quantitation
G1V-I
EPA Method 8270 RNA
Limit
Parameter
1
LillR!)
4-Cldoro-3-methylphenol
III II
BQI
2-Chlorophenol
lire
Hcli
2.4-Dichlorophenol
lit (I
BOI.
2.4-Dimethylphenol
411 IJ
HrIL
--',a-Dmilmphenol
50.0
BQI.
2-NLcthyl-1,6-dinilrophenol
bit
I'll,
l3QI.
2-Nitrophertol
Alit
BQI.
J-Nitrophcnoi
pir it
13QI.
Pen(acldnrophenol
141 li
13OI
Aherml
i U.0
13QI .
2,4.0-1-richlorophcnol
fP a
IVA.
Acenaphthene
10 II
1301,
Acenaphthylenc
111.0
BQL.
Anihrtcene
J11 0
HQI.
Benzidine
)fl 0
HQl-
Henm(a)anthraccne
1u.1p
liot
Bcnz(Xa)pyrene
IIi n
BQI.
Bcnzo(b)0uoranthcne
IO O
1301.
Hcnzo(ghi)perylenc
111.71
13QI.
Benzo(k)tluaranthene
{II 0
lim
Benzyl butyl phthalate
IQ.O
13QI
Bis(2-chloroethoxy)methane
10.II
BQI,
Bis(2-chlormth0e(her
1114I
BQI
13is(2-cldoroisopropyl)elhcr
IIr 11
13QI
Bis(2-ethyl-hexyl)phihalaic
W.41
I3Q1
I-Bromoplrenvi phenyl ether
J❑ 9
BQI.
2-Chloronaplithalene
lei a
li(ll.
d-Cldorophcnyl phcm,l ether
LfJ 11
BQI.
Chryscne
La 11
13QI
Dibunzo(a,hlanthraccne
10 i)
BQI
1,2-Dichlorobenzenc
III It
8f 11
1.3-Dichlorobcnzrnc
11111
B(,H
I. I-Dichlorohenzcne
111,M1
BQI
. „i-Dichlornlxmzidine
:u Ir
HQI
Diethyl phthalate
I6.ir
BQI.
Diniclhyl phthalate
10.o
BQL
Di-N-Binyl phdialme
IfUl
8QI
2,4-Dinitrotolucne
{u 17
J301
2,6-Dinitrotolucne
1C40
13Q1-
Di-N-0clyl phlhalatu
10.0
BQI,
1,2-Diphcnylhydrazine
56.1E
HQI.
pluormithenc
10.0
1301.
1,Iyitranq
141.11
13(
I Icxacldortibenzene
HIM
H(l1
Ilesachlorobuiadiene
A d
BQI
Hcxachlorocyclopemadiene
111 0
BQ1
Hexachlorocthanc
10 0
13(N
Indeno(1,2,3-cd) pyrene
1$.I6
B(ll
Isophotone
I I4 41
HQI.
Naphthalene
14141
HQI
Nitrolxnza 11V
1111A
BQI.
N-Nitrouulinicihylmnine
J0.IJ
I11V1.
N-niiroutdi-ii-propylamine
lop
13Q1.
N-Nilrosodiphenylamine
10.11
NQI.
I'hemmi1hreac
I6dl
li()i.
I'yrene
1 o.0
BQI
1.2: i= I richlorobcnzcne
III fl
BQI.
2-Nlethylnaphthalem
11w
13O1'
I-Methylnaphihalene
du 13
13QI
1hlutl.ul I- usl
I
Sample Number
34485-12
Sample Date
06,,12717
Sample Time (hrs)
1070
Dale Extracted
IW30, 1 7
Date Analyzed
06/30;17
Time Analyzed
P 901
Surrogate Recovery
Range
(2-Fluoraphenol)
(5-77%)
39%
(Phenol-d6)
(7-63°'0)
24%
( itrohcnzene-d-i)
(29-I499h)
M%
(2,4,6-Tribromophenol)
112-123°a)
Alai
(2-F-Iwirobiphenyt)
110-133q.)
76'.
(4-Terphenyi-d14)
(20-133%)
IIQI. Ilcloa Quanuiauon Limn Q.-Mat— hmne mm hr nrnlnph �d 1w dilution fw pph - pans per hdhmi

H&P Mobile
Geochemistry Inc.
2470 Impala Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast, UP- Greensboro Project: L-CS062917-13
4811 Koger Blvd Project Number Whitaker Park 7 Winston Salem Reported:
Greensboro, NC 27407 Project Manager Mr. Randy Cavallier 10-Jul-I 7 15:01
Volatile Organic Compounds by EPA TO-15 - Quality Control
H&P Mobile Geochemistry, Inc.
Reporting Spike Source "AFf RPD
nalyte Result Limit l din Level Result %RFC 1 iruii Kp[1 Limit Notea
Batch EG71010 - TO-15
Blank 1EG71010-BLK1Y
DicWorodi. luoromethane (F 121
Chloromethane
Dichlorotetratluoroethane(F114)
Vinyl chloride
Bromomethane
Chloroethane
Trichlorotluoromethane (F 11)
1,1-Dichloroethene
1,1,2-1 tichlorotnfluoroethane (F 1 13)
Methylene chloride (Dichloromethane)
Carbon disul5de
trans-1,2-Dichloroethene
LI-Dichloroethanc
2-Butanone (MEK)
cis-1,2-Dichloroethene
Chloroform
I_ I.1 •Trichloroethane
1,2•Dichloroethane (EDC)
lkruxne
Carbon tetrachloride
Trichloroethene
1,2-Dichloropropane
Brom od i chl oromethane
cis-1,3-Dichloropropene
4-Methyl-2-pentanone (MIRK)
trans-1,3-Dichloropropene
toluene
1,1,2-'Frichloroethane
2-Hexanone(VIBK)
D i bromoch I orome t hane
Tetrachloroethene
1,2-Dibromoethane (EDB)
1.. L 1,2-TetracHoroethane
Chlorobenzene
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
ND
NO
NO
NO
ND
ND
NO
NO
NO
NO
NO
NO
NO
ND
NO
NO
NO
5.0 ugnn3
2.1 "
7.1
2.6
16
8.0
5.6
4.0 "
7.7 "
3.5
6.3
8.0
4.1
30 "
4.0 "
4.9
5.5
4.1
3.2
6.4
5.5
9.4
6.8
4.6 "
8.3
4.6
3.8
5.5
8.3
8.6
6.9
7.8
7.0
4.7 "
Prepared & Analyzed: 07-Jul-17
Page 29 of 33

H&P Mobile
Geochemistry Inc.
2470 Impala Drive
Carlsbad, CA 92010
760-804-9678 Phone
76,0-804-9159 Fax
ECS Southeast LLP- Greensboro Project: ECS062917-13
4811 Koger Blvd Project Number: Whitaker Park 1 Winston Salem Reported
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallier 10-Jul-17 15:04
Volatile Organic Compounds by EPA TO-15 - Quality Control
H&P Mobile Geochemistry, Inc.
Reporting Spike 5uurcc NIRR RIAD
1,\nal)qe kc+ldl Limit Units Level Result iREC I AILIM RP1J Limit Notes
Batch EG71010 - TO-15
Blank (EG71010-BLKIj
Prepared & Analyzed: 07-Jul-17
Ethylbenzene
ND
4.4
ugnn3
m,p-Xylene
ND
8.8
'
Styrene
ND
4.3
'
o-Xylene
ND
4.4
'
Bromofortd
ND
10
'
1,1,2,2-Tetrachloroethano
ND
7.0
"
4-Ethyltoluene
ND
5.0
1,3,5-Trimethylbenzene
ND
5.0
'
1,2,4-Trimethylbenzene
ND
5.0
1,3-Dichlorobenzene
ND
12
'
1,4-Dichlorobenzene
ND
12
1,2-Dichlorobenzene
ND
12
'
1,2,4-Ttichiorobenzene
ND
38
"
Hexachlorobutadiene
ND
54
"
Surrogate: 1,2-Dtchloroethane-d4
41.k 9-.f+ 76-134
Surrogate: Toluene-d8
41 r 94. 0 78-125
Surrogate: 4-Bromofluorobenzene
72 v Y.i a 77-127
L CS_(-EG71010-BS1j
Prepared & Analyzed 07-Jul-17
Dichlorodifluoromethane(F12)
89
5.0
ug/tn3 101
8&.3
5L-Q8
y'invl chloride
42
2.6
510
kl6 7
64-127
Chloroethane
39
8.0
53h
72.8
63-127
TrichloroFluoromethane(FI17
91
5.6
113
AP3
62-126
1,1-Dichloroethene
65
4.0
Put
8143
n1-I11
1,1,2-TrichlorotriFluoroethane(F113)
120
7.7
155
805
66.126
Methylene chloride (Dichlommethane)
54
3.5
70.8
76.4
f,'-I tS
trans-1,2-Dichloroethene
60
8.0
w.i a
74.4
67-124
1. 1 -Dichloroethane
62
4.1
824
748
68-126
cis-1.2-Dichloroediene
61
4.0
Roil
'c
70-121
Chloroform
78
4.9
992
7x h
e* 11121
1,1.1-Trichloroethane
93
5.5
114
83.7
r.g•I25
1.2•Dichloroethme (EDC)
68
4.1
K: 4
N, I
rii-1 3X
Benzene
49
3.2
r„i K
"t* 1t
fro -I I')
Page 30 of33

H&P Mobile
Geochemistry Inc.
2470 Impala Drive
Carlsbad, CA 9201 D
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast, LLP - Greensboro Project: ECS062917-13
4811 Koger Blvd- Project Number' Whitaker Park / Winston Salem Reported
Greensboro, NC 27407 Project Manager Mr. Randy Cavallier 10-Jul-17 I5:01
Volatile Organic Compounds by EPA TO-15 - Quality Control
H&P Mobile Geochemistry, Inc.
Reporting Spike Source %REC .1ZI*L1
Result Limit Cnits Level Result '-.141 { Limits IWII imll Notes
Batch EG71010 - TO-15
LCS (EG71010-_BSI)
Prepared & Analyzed:
07-Jul-17
Carbon tetrachloride
120
6.4
ughn3 129
91 6
68-132
Trichloroethene
99
5.5
110
1411
71-123
Toluene
59
3.8
76.8
*73
66-119
1,1,2-Trichloroethane
89
5.5
111
741E
73.[19
lerrachloroethene
110
6.9
l ax
82.0
w 124
1,1,1,2-Tetrachloroethane
130
7.0
140
93.E
67-129
Ethylbenzene
65
4.4
W8 4
73.E
70-124
m,p-Xylene
70
8.8
88.4
78.6
61-L34
o•Xylene
69
4.4
094
1E i}
0-125
1,1,2,2-Tetrachloroethane
94
7.0
140
1169
415-127
Surrogate: 1,2-Dtchloroerhane-d4
ld 8
1:'4
104
76-134
Surrogate: Toluene-d8
OV-0
If I
1r8r
78-125
Surrogate: -Bromo/luorobenzene
71 8
7Z.0
QN r
77-127
LCS Dup (EG71010-BSD1)
Prepared & Analyzed'. 07-Jul-17
Dichlorodifluoromethanc(F12)
88
5.0
ug,m3 I01
87.8
59-120
0,566
Vinyl chloride
42
2.6
111
Nil'0
64-127
0.185
2!L
Chloroethane
37
8.0
53A
694
65-L."
4.70
25
Trichlorotluoromethane(F11)
90
5.6
111
71ia
f-111121'.
416IIi
2i
1,1-Dichloroethene
66
4.0
80.9
8L3
61 Ili
0156H
25
1, 1,2-Trichlorotnfluoroethane (F 113)
120
7.7
1.1
7110
66-126
U_806
:3
Methylene chloride (Dichloromethune)
56
3.5
-*
-4 7
62-115
2.95
:3
trans-l.2-Dichloroethene
61
8.0
de 3
'153
67-124
1211
35
I,I-Dichloroethane
63
4.1
924
-pi 5
6A-126
2.lil
25
cis-1,2-Dichloroethene
61
4.0
80A
-o A
70-121
u.1%%
25
Chloroform
79
4.9
'?+ 2
=
M-1 ti3
I175-
35
1,1,1-1-richloroethane
93
5.5
111
83.6
69:125
I' ll!+
25
1,2-Dichloroethane(EDC)
69
4.1
824
834
R5-128
0359
,5
19uiuciw
50
3.2
64 8
77.6
69-119
2 14
3i
Carbontetrachloridc
120
6.4
1_19
4)13
0-02
O6U2
25
Trichloroethene
97
5.5
110
83.E
71-123
2,41
25
l'oluene
57
3.8
T h K
746
66-1 19
r d7
25
1.1.2-Trichloroethane
89
5.5
111
W 9
T.1.119
(1 2r57
23
Page 31 of 33

H&P Mobile
Geochemistry Inc.
24704rnpa[a Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast, LLP - Greensboro Project E,CS062917-13
4811 Koger Blvd Project Number Whitaker Park i Winston Salcm Reported
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallier 10-Jul-17 15:01
Volatile Organic Compounds by EPA TO-15 - Quality Control
H&P Mobile Geochemistry, Inc.
Reporting Spike Source %RE(' RP
Analyte Result Limit L'nits Level Result 91.R.EC Limits Rf'D Limit Notes
Batch EG71010 - TO-15
LC$ Dup_(EG71010-BSDlJ _
Prepared & Analyzed: 07-Jul-17
1'etrachloroethene
110
6.9
ug+m3 ISR R1 X
66-124
0.244
25
1,1,1,2-Tetrachloroethane
130
7.0
140 93.2
n7-U9
0892
2
Ethylbenzene
73
4.4
88.4 831
70-124
II.9
Zt
m,p-Xylene
73
8.8
88.4 82.4
1,1-134
4.69
25
o-Xylene
72
4.4
- sol d V 0
5-..05
r1.91
15
1,1,2,2-Tetrachloroethane
99
7.0
140 71.1.1
65-127
5.07
25
Surrogate: 1,2-D+chloroethane-d4 '+
Surrogate: Toluene-d8 +n f
Surrogate: 4-BromoJluorobenzent ' a .{
t W 78-l25
`7 w: 77-127
Page 32 of 33

H&P Mobile
Geochemistry Inc.
F.CS Southeast. UP - Greensboro
4811 Koger Blvd
Greensboro, NC 27407
1A,f Leak Check Compound
q) lnalyte NOT DETECTED at or above the reporting limit
hlr}I Medtod Detection Limit
'oRli- Percent Recovery
RP!} Relative Percent Difference
Project: F,CS062917-13
Project Number Whitaker Park 1 Winston Salem
Project Manager. Mr. Randy Cavallier
(Votes and Definitions
Appendix
H&P Mobile Geochemistry, Inc. is approved as an Environmental Testing Laboratory and Mobile Laboratory in accordance with the DoD-FLAP Program
and ISO>IEC 17025:2005 programs, accreditation number 69070 for EPA Method TO-I5, H&P Method TO-15. EPA Method 8260B and H&P 8260SV
H&P is approved by the State of Anzona as an Environmental Testing Laboratory and Mobile Laboratory , certification numbers AZ,M758 and AZ0779.
H&P is approved by the State of California as an Environmental Laboratory and Mobile Laboratory in conformance with the Environmental Laboratory
Accreditation Program (FLAP) for the category of Volatile and Semi -Volatile Organic Chemistry of Hazardous Waste, certification numbers 2740. 2741.
2743, 2744, 2745, 2754 & 2930
H&P is approved by the State of Florida Department of Health under the National Environmental laboratory Accreditation Conference (NFLAC)
certification number F.871100
The complete list of stationary and mobile laboratory certifications along with the fields of testing (FOTs) and analyte lists are available at
www hundunt, wni,ahuub eenfflu jayi A
2470Impala Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fax
Reported
10-Jul-17 15:01
Page 33 of 33

H&P Mobile
Geochemistry Inc.
2470knpala Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast, LLP- Greensboro Project: ECS071317-11
4811 Koger Blvd Project Number. Whitaker Park Reported
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallier 26-Jul-17 13:11
Volatile Organic Compounds by EPA TO-15 - Quality Control
H&P Mobile Geochemistry, Inc.
Reponing Spike Source %REC RPD
analyte Result Limit Units Level Result %RE( Limits I(I135 Limit Notes
Batch EG72412 - TO-15
Blank fEG7241.2-111-KB.
Prepared & Analyzed: 24-Jul-17
Dichlorodifluoromethane(F12)
ND
5.0 ug/m3
Chloromethane
ND
2.1 '
Dichlorotetrafluoroethane (F 1141
ND
7.1 `
Vinyl chloride
N D
2.6
Bromomethane
ND
16
Chloroethane
ND
8.0
Irichlorofluoromethane(Fl1)
ND
5.6
1.1-Dichloroethene
ND
4.0
1,1,2-Trichlorotrifluoroethane(F113)
ND
7.7
Methylene chlonde (DichloromethaneJ
ND
3.5
Carbon disulfide
ND
6.3
trans•1,2-Dichloroethene
ND
8.0 "
1,1-Dichloroethane
ND
4.1 "
2-Butanone (MEK)
ND
30
cis-1,2-Dichloroethene
ND
4.0
Uilorofonn
ND
4.9
1.1,1-Ttichloroethane
ND
5.5
1,2-Dichloroethane (EDC)
ND
4.1
Benzene
ND
3.2
Carbon tetrachloride
ND
6.4
Tnchloroethene
ND
5.5
1,2-Dichloropropane
ND
9.4
Bromodichloromethane
ND
6.8
cis-1,3-Dichloropropene
ND
4.6
4-Nlethyl-2-pentanone (vIIBK)
ND
8.3
trans-1,3-Dichloropropene
ND
4.6
toluene
ND
3.8
1,1,2-Trichloroethane
ND
5.5
2-Hexanone(MBK)
ND
8.3
Dibromochloromethane
ND
8.6
letrachloroethene
ND
6.9 "
1,2-Dibromoethane (F,DB)
ND
7.8 "
1,1,1.2-Tetrachloroethane
ND
7.0 '
Chlorobenzene
ND
4.7
Page 23 ol'30

H&P Mobile
Geochemistry Inc.
2470 Impala Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9459 Fax
,CS Southeast, LLP- Greensboro Project: ECS071317-11
811 Koger Blvd Project Number Whitaker Park Reported
Ireensboro, NC 27407 Project Manager Mr. Randy Cavallier 26-Jul-17 13.11
Volatile Organic Compounds by EPA TO-15 - Quality Control
H&P Mobile Geochemistry, Inc.
Reporting Spike Source %RFC RPD
Analyte Result Limit 1 niia Leve4 Result %REC Limits R1111 Limit Votes
Batch EG72412 - TO-15
RJaak JEG72412-BLK1)
Ethylbenzene
m,p-Xylene
Styrene
o-Xylene
Bromoform
1,1,2,2-Tetraehloroethane
4-Ethyltoluene
1,3,5-Trimethylber zene
1, 2; 4-Tri m ethy I benzen e
1,3-Dichlorobenzene
1,4-Dichlorobenzene
1,2-Dichlorobenzene
1,2,4-Trichlorobenzene
Huxachlorobutadiene
,Surrogate: 1, 2-Dichloroethane-d4
Surrogate: 7olvene-dA
Surrogate:-l-Bromofluorohenzene
LCS jEG72412-13 1 .
Dichlorodifluoromethane (F 12)
Vinyl chloride
Chloroethane
TrichloroFluoromethane (F 11)
l.l-Dichloroethene
1,1,2-Trichlorotrifluoroethane (F 113)
Methylene chloride (Dichloromethane)
trans-1,2-Dichloroethene
I.I-Dichloroethane
cis- I.2-Dichloroethene
Chloroform
I,1,1-Tnchi oroethane
1,2-Dichloroethane (EDC)
Benzene
Prepared & Analyzed: 24-Jul-17
ND
4.4
ug/m3
ND
8.8
ND
4.3
ND
4.4
ND
10
ND
7.0
ND
5.0
ND
5.0
ND
5.0
ND
12
ND
12
ND
12
ND
38
"
ND
54
221r
10.E 76-.1jJ
21.
L!+" 10: 78.1=.'
34-
fbl 95-1 ". i,'
Prepared & Analyzed. 24-Jul-17
95
5_0
ugim3 Iri1 94.1
w-I'l
46
2.6
52 0 89 H
64-121
36
8.0
5' h all a
63-127
100
5.6
113 90.7
62-126
69
4.0t
H 854
61-133
140
7.7
li` A?1
66-126
59
3-5
7D8 82.9
n-11 `•
62
8.0
80.8 7A 7
67-124
65
4.1
.82A 793
68-126
64
4.0
>aFir 901
Wk121
90
4.9
7'+: NO
68-123
100
5.5
III IW6
68-125
72
4.1
82.4 &&.x
trs•l'19
54
3.2
64.9 93 R
69-119
Page 24 of 30

H&P Mobile
Geochemistry Inc.
2470impala Drive
Carlsbad, CA 92010
760-804.9678 Pbone
760-804-9159 Fax
ECS Southeast, LLP - Greensboro Project: ECS071317-11
4811 Koger Blvd Project Number: Whitaker Park Reported
Greensboro, NC 27407 Project Manager: Mr. Randy Cavall ter 26-Ju1.17 13:11
Volatile Organic Compounds by EPA TO-15 - Quality Control
H&P Mobile Geochemistry, Inc.
Reporting Spike Source `;RL'� RPLI
Analyte Result Limit knits Level Result ,AEI. Linow RPD Limrl Notes
Batch EG72412 - TO-15
LCSlEG72412-13 I
Prepared & Analyzed: 24-Jul-17
Carbon tetrachloride
120
6.4
ugim3 1 :8
94.2
(4-11 f
Trichloroethene
97
5.5
110
88.3
71-123
Toluene
56
3-8
76.8
72.8
66-119
1,1,2-Ttichloroethane
85
5.5
III
Th A
71.114}
Tetrachloroethene
110
6.9
138
8il8
66.124
1,1,1,2-Tetrachloroethane
120
7.0
140
82.7
0-12.1
Lthylbenzene
75
4.4
884
84 8
70-124
m,p-Xylene
74
8.8
.88.4
x y r-
b 1-134
o-Xylene
69
4.4
394
78.0
67-125
1,1,2,2-Tetrachloroethane
96
7.0
140
68.8
65-127
Surrogate. 1,2-Dchloroethane-d4
2f.r
1179
76,134
Surrogate: Toluene-d8
.,w;
=+I'
" 3
78-125
Surrogate. 4-Bromafluorohenzene
ri t
Y.J
97.0
77-127
LCS Dup fEG72412-BSD13 _
Diehlorodifluoromethane(P12)
93
5.0
Vinyl chloride
46
2.6
Chloroethane
39
8.0
Trichlorotluoromethane (F I )
100
5.6
4,1-Dichloroethene
69
4.0
1,1,2-Tnchlorotrifluoroethane(F113)
130
7.7
Methylene chloride (Dichloromethane)
57
3.5
trans-1,2-Dichloroethene
64
8.0
1, 1 -Dichloroethane
66
4.1
ciS-1,2-Dichloroethene
65
4.0
Chloroform
89
4.9
1.1,1-Trichloroethane
99
5.5
1,2-Dichloroethane (FDC)
69
4.1
Benzene
54
3.2
Carbon tetrachloride
120
6.4
Trichloroethene
95
6.5
Toluene
57
3.8
t,1,2-Trichloroethane
83
5.5
Prepared & Analyzed: 24-Jul-17
ugim3 1111 ,p. M
59-128
_ -.
'+
" 52.0 W8
64-127
1r115fi1
7i
` 53.6 72 B
D'. 12,
Ail
15
11.1 88 7
62-126
' 74
; 5
80.8 85.5
61-133
it 11',
25
155 85A
66-126
10
25
D X 3A P
62-115
161
�<
' B 79.2
67-124
YAi
2}
' 82.4 71 X
09-116
0627
35
80A 81.0
70-121
I I:
r3
r1.Z Wl0
68-123
1 In
2.5
111 89.2
Ng-125
1 55
25
" .92.4
65-128
3.37
?
' MJ R. K3.
69-119
111.19
2x
128 91.3
68-132
117
';
llll 870
71.11.1
1.42.
2s
Tt1t
66-119
1.4.2
25
" III 74.5
'�LIIw
2.&1
25
Page 25 of 30

H&P Mobile
Geochemistry Inc.
2470Impala Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast, LLP- Greensboro Project: ECS071317-11
4811 Koger Blvd Project Number: Whitaker Park Reported
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallier 26-Jul-17 13:11
Volatile Organic Compounds by EPA TO-15 - Quality Control
H&P Mobile Geochemistry, Inc.
Reporting Spike Sourca S'oREC RPD
Analyte Result Limit 11wo Level Result %H.H Limits RPO Limit %r4m
Batch EG72412 - TO-15
LCS Dup (EG72412-BSD1)
Prepared & Analyzed. 24-Jul-17
Fetrachloroethene
110
69
ug/m3 1.11 ' 1 1
66-124
2 06
25
1,1,1,2-"Cetrachloroethane
110
70
NO 79.7
67-129
3.74
2}
Ethylbenzene
74
4.4
88.4 834
70-124
1 7'
'}
m,p-Xylene
68
6.8
88.4 77.2
61-134
7.93
25
o-Xylene
67
44
88.4 75.3
67-125
3.50
23
1, 1,2,2- letrachloroethane
83
70
140 d+G ]
61-07
1 76
-S
Surrogate: 7.2-Dichloroethane-d4
22'r
J Jar-
70t-1:r4
Surrogate: lo7uene-d8
19e.
707 95 yr
`M.+2y
Surrogate. 4-BromoJ7uorbbenzene
351
4 pff.
Page 26 of 30

H&P Mobile
Geochemistry Inc.
2470 Impala Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804.9159 Fax
ECS Southeast, LLP - Greensboru Project: ECS071317-11
4811 Koger Blvd Project Number Whitaker Park Reported
Greensboro, NC 27407 Project Manager: Mr, Randy Cavallier 26-Jul-17 13.11
Volatile Organic Compounds by H&P 8260SV - Quality Control
H&P Mobile Geochemistry, Inc.
Reporting Spike Source I RP
Analyte Result Limit Gaits Cavel Result %REC Limits .1' Limit Notes
Batch EG71905 - EPA 5030
Blank (EG71905-BLKl]
Prepared & Analyzed: 18-Jul-17
2-Butanone (MEK)
ND
2500 ug/m3
2-Hexanone(M13K)
ND
2500 "
4-Methyl-2-pentanone (MIBK)
ND
2500
Dichlorodifluoromethane(F12)
ND
500
Chloromethane
ND
500
Vinyl chloride
ND
50
Bromomethane
ND
500
Chloroethane
ND
500 "
Irichlorofluoromethane(FII)
ND
500 "
I,1-Dichloroethee
ND
500
1,1,2Trichlorotrnfluoroethane(F113)
ND
500
Carbon disulfide
ND
500
Methylene chloride (Dichloromethane)
ND
500 "
trans-1,2-Dichloroethee
ND
500
1, 1 -Dichloroethane
ND
500
cis-1,2-Dichloroethee
ND
500
Chloroforn+
ND
100
1.1,1-"I"nchloroethane
ND
500
Carbon tetrachloride
ND
100
L2- Diehl oroethane (EDC)
ND
100
tkrwAgiu
ND
100
Tachloroetbene
ND
100 '
1,2-Dichloropropane
ND
500 "
Bromodichloromethane
ND
500
cis-1,3-Dichloropropene
ND
500 '
Toluene
ND
1000
trans-1,3-Dichloropropene
ND
500 '
1,1,2-Tnchloroethane
ND
500
1,2-Dibromoethane (EDB)
ND
500
Tetrachloroethene
ND
100
Dibromochloromethane
ND
500
Chlorobenzene
ND
100
Ethvlbenzene
ND
500
I,1,1,2-Tetrachloroethane
ND
500
Page 27 of 30

H&P Mobile
Geochemistry Inc.
2470 Impala Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fox
ECS Southeast, LLP- Greensboro Project: ECS071317-11
4811 Koger Blvd Project Number: Whitaker Park Reported.
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallier 26-Jul-17 1111
Volatile Organic Compounds by H&P 8260SV - Quality Control
H&P Mobile Geochemistry, Inc.
Reporting Spike Source %PF;C IUD
nalyte Result Limit Luits Level Result 'rRk.t Limits RPD Limit Notes
Batch EG71905 - EPA 5030
Blank (EG71905-BLKI)
Prepared & Analyzed. l8-Jul-17
m,p-Xylene
ND
500
ug'm3
v-Xylene
ND
500
'
Styrene
ND
500
Bromofonn
ND
500
"
1,1,2,2-Tetrachloroethane
ND
500
1,3,5-Trimethylbenzene
ND
500
1,2,4-Trimethylbenzene
ND
500
1,3-Dichlorobenzene
ND
500
1,4-Dichlorobenzene
ND
500
1,2-Dichlorobenzene
ND
500
1,2,4•Trichlorobenzene
ND
500
Hexac-Worobutadiene
ND
500
"
Surrogate: Utbromo%luoromethane
25ee 1r. ' 754, i
Surrogate: Toluene-t18
"-idol
:lfo Mr 75. -.?
Surrogate: 4-Bronutluorobenzene
:SOA
2500 I+l_ 75-113
LCS IEG7190543S_l l
Prepared & Analyzed:
18-Jul-17
Dichlorodifluoromethane (F12)
4300
500
ugim3 S(Ign
V1 "
70-130
Viny4 chloride
4800
50
SIMIR
96.0
71R 17a
Chloroethane
4800
500
Rl)?llr
r-.
Y1-1 ;..
Tnchlorofluoromethane(F11)
4500
500
*IkH1
."..
-11-1 ill
1, 1 -Dichloroethene
4400
500
5000
872
711-1UI
1,1,2TrichlorolriFlucroetharre(F113)
5500
500
law
III
70-130
Methylene chloride (Dichloromethane)
4900
500
Sfglp
97q
70-130
trans-1,2-Dichloroethene
5100
500
trm
iwt
70-130
1, 1 -Dichloroethane
4500
500
5A0
89.8
7G'130
cis-1,2-Dichloroethene
5300
500
SIM
tiro
70-130
Chloroform
4800
100
5000
95.3
wg311
1,1,1-Trichloroahane
4600
500
irfui
91.7
70-13P
Carbon tetrachloride
4900
100
S1111H
911 R
711.1Ill
1,2-Dichloroethane(EDC)
4100
100
5000
82.1
70-130
Benzene
5100
100
"It;
103
7iki3n
-Frichloroethene
5100
100
W. 1
102
7t-1311
Page 28 of 30

H&P Mobile
Geochemistry Inc.
2470Impala Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9 ] 59 Fax
ECS Southeast, LLP - Greensboro Project: ECS071317-11
4811 Koger Blvd Project Dumber: Whitaker Park Reported.
Greensboro, NC 27407 Project Manager Mr. Randy Cavallier 26-Jul-17 13 11
Volatile Organic Compounds by H&P 8260SV - Quality Control
H&P Mobile Geochemistry, Inc.
Reporting Spike-%LLrL'c aRL(' RPD
Rt%ull Limit Units Level Result ".14H Limits RF'll Limit Notes
Batch EG71905 - EPA 5030
LCUEG71905-BS11
Prepared & Analyaed: 18-Jul-17
Toluene
5200
1000
ug,'m3 141w 103
70.130
1,1,2-Ttichloroethane
4600
500
i411HP 92A
70-130
Tetrachloroethene
5300
100
31-11D 106
70-130
Ethylbenzene
5600
500
5000 Ili
70-130
I,1,1,2-Tetrachloroethane
5100
500
5000 Ytl7
70-130
m,p•Xylene
11000
500
row 1141
-.ro-ry
o-Xylene
5500
500
1411)f I (14
Iry I w
1,1,2,2-Tetrachloroethane
4600
500
°jixa 915
70-130
Surrogate: Dtbromo/luoronrethana : JR+
Surrogate- Taluene-d8 1640
Surrogate: 4-Bromofluorobenzene MOO
_yfxt t 75-125
°00 ;trr 75-125
' 00 ffm .,. +: ,
Page 29 of 30

H&P Mobile
Geochemistry Inc.
2470Impala Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast, LLP - Greensboro Project: ECS071317-11
4811 Koger Blvd Project Number Whitaker Park Reported
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallier 26-Jul-17 13:11
I CC Leak Check Compound
14Li Analyte NOT DIE rEC7 ED at or above the reporting limit
VIDL Method Detection Limit
%RFC Percent Recovery
UP Relative Percent Difference
Notes and Definitions
Appendix
H&P Mobile Geochemistry, Inc. is approved as an Environmental Testing Laboratory and Mobile Laboratory in accordance with the DoD-FLAP Program
and ISOiIEC 17025.200S programs, accreditation number 69070 for EPA Method to-15, H&P Method TO-15, EPA Method 826013 and H&P 8260SV
H&P is approved by the State ol'Arizona as an Environmental resting Laboratory and Mobile Laboratory, certification numbers AZM758 and AZ0779
H&P is approved by the State of Califomia as an Environmental Laboratory mid Mobile Laboratory in conformance with the Environmental Laboratory
Accreditation Program (FLAP) for the category of Volatile and Semi -Volatile Organic Chemistry of Hazardous Waste, certification numbers 2740. 2741,
2743, 2744, 2745, 2754 & 2930
H&P is approved by the State of Florida Department of Health under the National Environmental Laboratory Accreditation Conference (NELAC)
certification number E871100
The complete list of stationary and mobile laboratory certifications along with the fields of testing (FO Is) and analyte lists are available at
w ww.handonue.aom+of aulrramiirnuar,�
Page 30 of30

H&P Mobile
Geochemistry Inc.
2470 Impala Drive
Carlsbad, CA 9200
760-804-9678 Phone
760-804-9159 Pax
GCS Southeast, UP- Greensboro Project: ECS071717-16
4811 Koger Blvd. Project Number: Whitaker Park Reported:
rreensboro, NC 27407 Project Manager: Mr. Randy Cavallier 26-Jul-17 14:01
Volatile Organic Compounds by EPA TO-15 - Quality Control
H&P Mobile Geochemistry, Inc.
Reporting Spike Source 'krd -.t. RPi)
nnrvle Resutt I ., t I uux Level Result %REC I rhuls RI'l1 Limit `+uk h
Batch EG72106 - TO-15
Blank (EG72106-BLKI) _
Prepared & Analyzed. 21-Jul-17
Dichlorodifluoromethane(F12)
ND
5.0 ug%m3
Chloromethane
ND
2.1
Dichlorotetrafluoroethane (F 1 14)
N D
7.1
Vinyl chloride
ND
2.6 '
Bromomethane
ND
16 '
Chloroethane
ND
8.0
Trichlorofluoromethane(F11)
ND
5.6
1. 1 -Dichloroethene
ND
4.0
1,1,2-I'richlorotnfluoroethane(F1131
ND
7.7 "
Methylene chloride (Dichloromethare)
ND
3.5 "
Carbon disulfide
ND
6.3
trans-1,2-Dichloroethend
ND
8.0 '
LI-Dichlorocthane
ND
4.1 '
2-Butanone (MEK)
ND
30
cis-1,2-Dichloroethene
ND
4.0
Chloroform
ND
4.9 '
1,1,1-Trichloroethane
ND
5.5 '
12-Dichloroethane (EDC)
ND
4.1 "
Beimmo
ND
3.2 '
Carbon tetrachloride
ND
6.4 '
Trichloroethene
ND
5.5
1,2-Dichloropropane
ND
9.4
Bromodichloromethane
ND
6.8
cis-1,3-Dichloropropene
ND
4.6 '
4-Methyl-2-pentanone(.M1BK�
ND
8.3
trans-1,3-Dichloropropene
ND
4.6
Toluene
ND
3.8
1,1,2-Inchloroethane
ND
5.5 "
2-Hexanone (MBK)
ND
8.3
0ibromochloromethane
ND
8.6
Tetrachloroethene
ND
6.9 "
1,2-Dibromoethane(EDB)
ND
7.8 "
1, 1, 1,2-Tetrachloroethane
ND
7.0
Chloroberuene
ND
4.7
Page 30 of 34

H&P Mobile
Geochemistry Inc.
2470 Impala Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast, LLP- Greensboro Project: ECS071717-16
4811 Koger Blvd Project Number: Whitaker Park Reported
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallier 26-Jul-17 14:01
Volatile Organic Compounds by EPA TO-15 - Quality Control
H&P Mobile Geochemistry, Inc.
Reporting Slwkc Soterce %REC RPD
4tfid}'fs Result Limit Units Lgivi Result %REC Limits RP Limit Notes
Batch EG72106 - TO-15
Blank EG72106-BLK11
Prepared & Analyzed. 21-Jul-17
Ethylbenzene
ND
4.4 uglm3
m,p-Xylene
ND
8.8
Styrene
ND
4.3 "
o-Xylene
ND
4.4 `
Bromofonn
ND
10 "
1,1,2,2-Tetrachloroethane
ND
7.0 "
4-Ethyltoluene
ND
5.0
1,3,5-Trimethylbenzene
ND
5.0
1,2,4-Trimethylbenzene
ND
5.0
1,3-Dichlorobenzene
ND
12
1,4-Dichlorobenzene
ND
12
1,2-Dichlorobenzene
ND
12 "
1,2,4-Tichlorobenzene
ND
38 "
Hexachlorobutadiene
ND
54 '
Surrogate: 1,2-Dichloroethane-d4 .14 .2f+ "A 76-134
Surrogate: Toluene-dg NOv 20' f++l 78-125
Surrogate:-l-Bromojluorobenzene rrj A 94 + 77-127
LCS (EG72106-BSI)
Prepared & Analyzed 21-Jua-17
Dichlorodifluoromethane (F121
90
5.0
ug m3 141
V c
59-128
Vinyl chloride
4fi
2.6
S2.o
85.0
M+1-11,
Chloroethane
42
8.0
"
78-2
0-127
'Irichlorofluoromethane IF 11)
97
5.6
119
96.0
42-12(i
1, 1 -Dichloroethene
66
4.0
80.9
82.0
+�1•Lls
1,1,2-TnchlorotriFluoroethane(F113)
130
7.7
155
84.5
fi6-[.a
Methylene chloride (Dichloromethane)
54
3.5
708
76.9
62-115
trans-1,2-Dichloroethene
60
8.0
80.8
74.1
67-124
1,1-Dichloroethane
62
4.1
82.4
741
0-126
cis-1,2-Dichloroethene
61
4.0
S041
71, 4
70-121
Chloroform
82
4.9
992
15:.
68-123
i,L1-'1'richloroethano
97
5.5
111
1f73
+.S Q;
1,2-Dichloroethane (EDC)
69
4.1
824
K3 3
65-128
lfiewmm
52
3.2
64.9
40-
69-119
Page 31 of 34

H&P Mobile
Geochemistry Inc.
24701mpola Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast, LLP- Greensboro Project ECS071717-16
4811 Koger Blvd Project Number Whitaker Park Reported
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallier 26-Jul-17 14:01
Volatile Organic Compounds by EPA TO-15 - Quality Control
H&P Mobile Geochemistry, Inc.
Reporting Spike Source %RE(' RPD
Analyze Result Limit UP102 Level Result "•iHEU Lmias RI'D Limit Notes
Batch EG72106 - TO-15
LCS_ E( G72106-_BS1Y
Prepared &Analyzed: 21-Jul-17
Carbon tetrachloride
110
6.4
ug1m3 129
14V T
1W 117
1'richloroethene
90
5.5
ua
82.3
71-123
Toluene
52
3.8
76.8
67.1
66-119
1,1,2-Tnchloroethane
&t
5.5
III
�5.1
73-119
Tetrachloroethene
110
6.9
8
66-124
1, 1, 1,2-Tetrachloroethane
110
7.0
Fill
RI s
n7-I2v
Ethylbenzene
75
4.4
88.4
85.3
7& 124
m,p-Xylene
71
8.8
884
80.8
61-1."
o-Xylene
68
4A
s84
'n I
W-925
1,1,2,2-1etrachloroethane
95
7.0
144
h7a-
65-127
Surrogate: 1.2-Drchloroethane-d4
P28
?1f
lob
'64J1
Surrogate:lbluene-d8
l97
:r+`
95.4t
7&/25
Surrogate: 4-BromoJluorobenzene
462
fr,i
99.E
77-127
LCS Dun (EG72106-BSD11 _
Prepared & Analyzed-' 21-Jul-17
Dichloroditluoromethane(IF 12)
91
5.0
ugim3 101
+w";il
2i
Vinyl chloride
46
2.6
""
k, w
64-127
' RIJ
25
Chloroethane
43
8.0
53.6
50.3
63-127
-1E
'5
1rich] orotluoromethane (F111
98
5.6
- 113
lop 4
M-12h
1 t14
J#
1,1-Dichloroethene
67
4.0
80.8
R.;
fh1-111
1M7
2�
1,1,2•Trichlorotritluoroethane(FI13)
130
7.7
1;{
85.1
66-126
It l
�5
Methylene chloride (Dichloromethane)
57
3.5
70.8
80.2
62-115
k l4
] c
trans-1,2-Dichloroethene
63
8.0
80.8
78.3
67-124
-16N
21F
1,1-Dichloroethane
63
4.1
K-14
7611
biF-[_'n
1 K
15
cis-1,2-Dichloroethene
64
4.0
SO
7ILL21
t16
i�
Chloroform
82
4_9
'>"+:
67'
nx-171
nrvin1
24
I,I.I-Tnchloroethane
97
5.5
I II
PF' I
nX.114
Iu11)
2
1,2-Dichloroediane (LDC)
70
4.1
9r 1
85.3
65-128
2 it
: s
Benzene
53
3.2
64.8
81 '
0& I N
I _' I
S
Carbon tetrachloride
110
6.4
1'-9
85.7
68-132
1 }}
a?
Irichloroethene
90
5.5
110
8" 1
7I-1:=
1E1U:
-S
Toluene
59
3.8
-11 H
77 IF
mi, I I'>I
1 I -.
:!S
1,1,2-Tnchloroethane
84
5.5
IN
75 4
73-119
n 1)4.;7
�15
Page 32 of 34

H&P Mobile
Geochemistry Inc.
2470 Impala Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fax
FCS Southeast, LLP - Greensboro Project: ECS071717-16
4811 Koger Blvd Project Number: Whitaker Park Reported
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallier 26-JLI-17 14:01
Volatile Organic Compounds by EPA TO-15 - Quality Control
H&P Mobile Geochemistry, Inc.
Reporting Spike b,iurce NnL' RP
Analyze Result Limit Chits Level Result %REC I Jmii+ HIT Limit Notes
Batch EG72106 - TO-15
LCS Du_ (EG72106-BSD11
Prepared & Analyzed: 21-Jul-17
"Cetrachloroethene
110
6R
ugtm3 138 T);S
66-124
0,445 ]+
1, 1, 1,2-Tetrachloroethane
110
70
1 HI 82.0
67-129
0,609
Ethylbenzene
75
44
JFS J 85 4
70-124
0.0583
m,p-Xylene
72
8,8
884 Al R
61-134
1.28 ;
o-Xylene
67
4.4
88.4 1, 8
n7- 1 !;
0.91-4 -�
1,L2,2-Tetrachloroethane
94
7.0
146 67.4
v-U-
z1 "14
Surrogate: 1,2-Dichloroethane-d4
"v
114 pm
76-134
Surrogate: lbhiene-d8
4!r
Y1' V' J
7,4-115
Surrogate.: 4-Bromofluorobenzene
]6,}
"o4 W ;
77-127
Page 33 of34

H&P Mobile
Geochemistry Inc.
2470 Impala Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast, LLP - Greensboro Project: ECS071717-16
4811 Koger Blvd Project Number: Whitaker Park Reported
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallier 26-JuL 17 14 01
I Cl.
Leak Check Compound
tiU
Analyte NOT DETECTED at or above the reporting limit
NEDI,
Method Detection Limit
Nkfs'
Percent Recovery
M1
Relative Percent Difference
Notes and Definitions
Appendix
H&P Mobile Geochemistry. Inc. is approved as an Enviromnental -Nesting Laboratory and Mobile Laboratory in accordance with the DoD-ELAP Program
and ISO/IEC 170252005 programs, accreditation number 69070 for EPA Method TO-15, H&P Method TO-15, EPA Method 8260B and H&P 8260SV
H&P is approved by the State of.A-nzona as an Environmental Testing Laboratory and Mobile Laboratory, certification numbers AZM758 and AZ0779.
H&P is approved by the State of California as an Environmental Laboratory and Mobile Laboratory in confomtance with the Enviromnental Laboratory
.Accreditation Program (FLAP) for the category of Volatile and Semi -Volatile Organic Chemistry of Hazardous Waste, certification numbers 2740, 2741,
2743, 2744, 2745, 2754 & 2930
H&P is approved by the Stale of Florida Department of Health under the National Environmental Laboratory Accreditation Conference (NELAC)
certification number E871100
The complete list of stationary and mobile laboratory certifications along with the fields of testing ( FOTs) and analyte lists are available at
w ww.6aridlwra ctuniabinit cerli&;ations
Page 34 of 34

H&P Mobile
Geochemistry Inc.
2470Impala Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast, LLP- Greensboro Project: ECS071717-16
4811 Koger Blvd Project Number: Whitaker Park Reported
Greensboro, NC 27407 Project Manager_ Mr. Randy Cavallier 26-Jul-17 14:01
Volatile Organic Compounds by EPA TO-15 - Quality Control
H&P Mobile Geochemistry, Inc.
I Reporting Spike Source %Rhc RPD
Analyte Raw111 Limit [.nits Level Result `41--A Limits RPfl Limit ?i1t6
Batch EG72106 - TO-15
BLank1EG72106-BI.K1J
Prepared &Analyzed: 21-Jul-17
Dichlorodifluoromethane(F12)
ND
5.0 ughn3
Chloromethane
ND
2.1 ;
Dichlorotetrafluoroethane (F 114)
ND
7.1
Vinyl chloride
ND
2.6
Bromomethane
ND
16 '
Chloroethane
ND
8.0 '
Trichlorofluoromethane(F1I
ND
5.6 '
1,1-Dichloroethene
ND
4.0
1,1,2-TrichlorotriEluoroethane1F1130
ND
7.7
Methylene chloride (Dichloromethanel
ND
3.5 "
Carbon disulfide
ND
6.3 '
trans-1,2-Diehloroethene
ND
8.0 '
1.1-Dichloroethane
ND
4.1 '
2-Butanone (MEK)
ND
30
cis-1,2-Dichloroethene
ND
4.0
Chlorofonn
ND
4.9 '
I,1,l-Trichloroethane
ND
5.5
1,2-Dichloroethane (EDC)
ND
4.1
lje-w w
ND
3.2
Carbon tetrachloride
ND
6.4
Trichloroethene
ND
5.5 '
1,2-Dichloropropane
ND
9.4 -
Bromo'dichloromethane
ND
6.8
cis-1,3•Dichtoropropene
ND
4.6
4-Methyl-2-pentanone(MIBK)
ND
8.3
trans-L3-Dichloropropene
ND
4.6 --
Toluene
ND
3.8 "
1.1,2-Triehloroethane
ND
5.5
2-Hexanone (MBK)
ND
8.3 '
Dibromochloromethane
ND
8.6 '
Tetrachloroethene
ND
6.9 "
1,2-Dibromoethane (EDB)
ND
7.8 "
1, 1, 1,2-Tetrachloroethane
ND
7.0
C'hlorabenzene
ND
4.7 '
Page 30 of 34

H&P Mobile
Geochemistry Inc.
2470 Impala Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast, LLP - Greensboro Project LCS071717-16
4811 Koger Blvd Project Number: Whitaker Park Reported
Greensboro, NC 27407 Project Manager: Mr. Randy Cavallier 26-Jul-17 14:01
Volatile Organic Compounds by EPA TO-15 - Quality Control
H&P Mobile Geochemistry, Inc.
Reporting Spike Source %REC RPD
lAnalyte Result Limit I.13117 Level Result %REC Lunits lull] Umit Notes
Batch EG72106 - TO-15
_Blank F.G72106-BLKI)
Prepared_&Analyzed: 21-Jul-17
Ethylbenzene
ND
4.4
ug.'m3
m,p-Xylene
ND
8.8
"
Styrene
ND
4.3
'
o-Xylene
ND
4.4
Broruofonn
ND
10
'
1,L2,2-1'etrachloroethane
ND
7.0
4-Ethyltoluene
ND
5.0
1,3,5-1'nmethylbenzene
ND
5.0
'
1,2,4-Trimethylbenzene
ND
5.0
1,3-Dichlorobenzene
ND
12
'
IA-Dichlorobenzene
ND
12
1,2-Dichlorobenzene
ND
12
1,2,4-Trichlorobenzene
ND
38
Flexachlorobutadiene
ND
54
Surrogate: 1,2-Diehloroethane-d4
o.,
- 1;1 VY.% 76-134
Surrogate: Toluene-d8
21`0
=n- 101 78-125
Surrogate. d-Bromofluomhenzene
JV
RAJ 04 -
LCStfG721.06-13SI)
Prepared & Analyzed: 21-Jul-17
Dichlorodifluoromethane (F 12)
90
5.0
ug/m3 1111
89S
51x12R
Vinyl chloride
Qe
2.6
52.0
H5 U
64-127
Chloroethane
42
8.0
53 h
78.2
63-127
Tnchlorofluoromedtane (F 11)
97
5.6
Ira
86.0
0-12h
LI-Dichloroethene
66
4.0
wS
N2 tt
0.1-1) t
1,1,2-1'richlorotnfluoroethane(F113)
130
7.7
151
84.5
66-126
Methylene chloride (Dichlorornethane)
54
3.5
70.8
ih 9
62-1 IS
trans-1.2-Dichloroethene
60
8.0
01IR
74.7
67-124
I,1-Dichloroethane
62
4.1
82.4
75.1
684241
cis-1,2-Dichloroethene
61
4.0
" RI}fit
'm,l
70-L2I
Chloroform
82
4.9
99.2
S27
68-1?3
1,1,1-Tnchloroethane
97
5.5
III
03
-68-125
1,2-Dichloroethane(EDC)
69
4.1
82.4
83.3
4117R
Beuzene
52
3.2
64.8
80.7
n0.1)41
Page 31 of34

H&P Mobile
Geochemistry Inc.
2470 Impala Drive
Carlsbad, CA 9201 a
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast, UP - Greensboro Project: ECS071717-16
4811 Koger Blvd Project Number Whitaker Park Reported
Greensboro, NC 27407 Project Manager Mr. Randy Cavallier 26-Jul-17 14:01
Volatile Organic Compounds by EPA TO-15 - Quality Control
H&P Mobile Geochemistry, Inc.
Reporting Spike Source %REC RPD
.nalyte Result Limit tnits Level Result lREC Limits RJ'Ir Limit Notes
Batch EG72106 - TO-15
L�-_(EG72106-BSII
Prepared & Analyzed_ 21-Jul-17
Carbon tetrachlonde
110
6.4
ugim3 129
a't -
68-132
Trichloroerhene
90
5.5
1 lr)
82 J
71-123
Toluene
52
3.8
76.8
hi I
b6-119
1,1,2-Tnchloroethane
84
5.5
111
75.5
73-119
Tetrachloroethene
110
6.9
IM
'8 i
0-1 t4
1, 1, 1,2-Tetrachloroethane
110
7.0
" 149
81.5
67-129
E.thvlbenzene
75
4.4
s8 a
85.3
70-124
m,p-Xylene
71
8.8
88A
HO It
61-134
o-Xylene
68
4.4
884
"fi f
67-125
1,1,2,2-Tetrachloroethane
95
7.0
140
h7X
lr1"
Surrogate. 1.2-1)tchloroethane-d4
--
'1a
106
76-1,4
Surrogate. Toluene -di
fQ'
- 0-
ysg
•.wl:5
Surrogate. 4-8romofluorohenzene
l
1"
99.4
' ', J 2-
LCS DUD IEG72106-BSDII
Prepared & Analyzed: 21-Jul-17
Dichlorodifluoromethane(F12)
91
5-0
ugrm3 101
Am
K41;R
117:41
2t
Vinvd chlorido
46
2.6
5' 0
87.5
64-127
2,89
25
Chloroethane
43
8.0
53.6
80.3
d9-12"
? 5a
I}
Trichlorofluoromethane(FI11
98
5.6
" 11.1
44,j
a: -Ur.
Ina
a
I,I-Dichloroethene
67
4.0
Hit It
83 5
64-133
1 A7
25
L1,2-1rich] orotrifluoroethanc(F113)
130
7.7
155
101
bWI�u
0.821
25
Methylene chloride (Dichloromethane)
57
35
'.1H
tlU2
62•I1°
4,19
'{
trans-1,2-Dichloroethene
63
8.0
NA
78.3
67-124
4.68
'{
1,1-Dichloroethane
63
4.1
82.4
%V
rk-l2n
1 10
_1
cis-1,2-Dichloroethene
34
40
tltiIJ
a 4
10-1_14
5.46
'J
Chloroform
82
4.9
w2
t52"
68-123
00604
74
tA.1-Tnchloroethane
97
5.5
Ill
k' 3
68-125
1111LI
25
1,2-Dichloroediane(EDC)
70
4.1
82.4
Rh!
nq-1.11
2.31
23
mcluov.
53
3.2
64.8
Nl'
69-119
42
;s
Carbon tetrachloride
110
6.4
t2k
85 7
68-132
4,55
fl
Trichloroethene
90
5.5
1Its
82.1
1JA23
0.302
it
Toluene
59
3.8
'6 a<
77.0
{ph-11"J
13.7
.5
1,12-Trichloroethane
84
5.5
111
°k'
Tt•41u
i1Un9?
25
Page 32 of 34

H&P Mobile
Geochemistry Inc.
2470 Impala Drive
Carlsbad, CA 9200
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast, LIT -Greensboro Project: FCS071717-16
4811 Koger Blvd Project Number: Whitaker Park Reported
Greensboro, NC 27407 Project Manager: Mr. Randy CavalIier 26-Jul-17 14:01
Volatile Organic Compounds by EPA TO-15 - Quality Control
H&P Mobile Geochemistry, Inc.
Reporting Spike Source °icI?LLC RPD
,nalyte Result Limit U4 h Level Result %Uc Limits PIN) Limit Notes
Batch EG72106 - TO-15
LCS Dup (EG72106-B_SU1)
Prepared & Analyzed 21-Jul-17
Tetrachloroethene
110
69
ug,m3 139 ik:
6h-€14
0.445
L9
1,1,1,2-Tetrachloroethane
110
7.0
140 82A
67-129
U N 9
25
I:thylbenzend
75
4,4
88.4 85A
70-124
01115113
D
m,p-Xylene
72
8.5
884 8i.8
61-13-4
1.28
:5
b-Xvlene
$7
4.4.
S84 "iq
67-125
4).914
25
1,1,2,2-1'etrachloroethane
04
7.0
140 67.4
65.I27
SISS4
25
,Surrogate. 1,2-Dtchloroethane-d4
228
i1i tlrri
;rFWJ1
Surrogate:7bluene-d8
M1
aU- 9.)
?S.Ilj
Surrogate: a-Bromo/luorobenzeue
—1
- ,nJ W2
p7,127
Page 33 of 34

H&P Mobile
Geochemistry Inc.
2470Impala Drive
Carlsbad, CA 92010
760-804-9678 Phone
760-804-9159 Fax
ECS Southeast, LIT - Greensboro Project: ECS071717-16
4811 Koger Blvd. Project Number: Whitaker Park Reported:
Greensboro, NC 27407 Project Manager Mr. Randy Cavallier 26-Jul-17 14 01
L-0- Leak Check Compound
ND Analyte NO-1 DE FECLED at or above the reporting limit
MDL Method Detection Limit
'Al.{. Percent Recovery
RPD Relative Percent Difference
Notes and Definitions
Appendix
H&P Mobile Geochemistry, Inc. is approved as an Environmental -testing Laboratory and Mobile Laboratory in accordance with the DoD -FLAP Program
and ISO,IEC 17025:2005 programs, accreditation number 69070 for EPA Method T0-I5, H&P Method TO-I5, EPA Method 8260E and H&P 8260SV
H&P is approved by the State of Arizona as an Environmental testing Laboratory and Mobile Laboratory, certification numbers AZ'V1758 mid AZ0779.
H&P is approved by the State of Califomia as an Environmental Laboratory and Mobile Laboratory in conformance with the Environmental Laboratory
Accreditation Program (ELAP) for the category of Volatile and Semi -Volatile Organic Chemistry of Hazardous- Waste, certification numbers 2740, 2741,
2743, 2744, 2745, 2754 & 2930
H&P is approved by the State of Flonda Department of Health under the National Environmental Laboratory Accreditation Conference
certification number E871100
The complete list of stationary and mobile laboratory certifications along with the fields of testing (FO"ts) and analyte fists are available at
wwJwuirma c{mumlmut'ceai liemnam.
Page 34 of 34

QA/QC Summary
Method: 8260 SOIL
/100/500/10
PB C FILE NAME: SLC0703
CLIENT: ECS SOUTHEAS7,
LLP,
(PROJECT: WPDA)
Sample ID:
36485 — 05 INSTUMENT: MS-2 Page e 1 of 2
Extraction Method
5035
Date Extracted
NIA
Weight Extracted
5C,J5ML
Final Extract Volume
5015Ml,
Date Anal
07WI17
% Surr ate Recovery
100
1 103
103
Acceptance Range
(70-130)
(70-130) 1
(70-130)
rc I NIS [ HSI] I I QC LIMI
Compound
Com P
MDL
mpJlm
Method
Blank
LCS %
Recovery
Acce t>Ine
cPD
Marge
B, RPO
o lam. % Roe.
a REC
DICHLORODIFLUOROMETHANE
0.00047
ND
105
56-126
CHLOROMETHANE
0.00050
ND
85
62-133
VINYL CHLORIDE
0.00059
ND
105
67-136
BROMOMETHANE
0.00028
ND
98
72-130
�CHLOROETHANE
0.00029
ND
100
73-133
TRICHLOROFLUOROMETHANE
0.00037
ND
101
75-131
ACETONE
0.00159
ND
84
62-T 19
ACRYLONITRILE
0,00036
ND
109
76-135
-BUTANONE
0.00152
ND
100
62-122
1, 1 -DICHLOROETHENE
0.00059
NND
105
82-133
90 95 5 14
61-145
METHYL IODIDE
0.00397
ND
118
70-136
CARBON DISULFIDE
0.00042
ND
99
76-132
METHYLENE CHLORIDE
0,00136
ND
99
68-135
BANS-I,2-DICHLOROETHENE
0.00107
1 ND
99
M134
1,1-DICHLOROETHANE
0,00036
ND
103
74-140
ISOPROPYL ETHER(IPE)
0.00024
ND
104
67-139
METHYL-TERT-BUTYLETHER(MTBE)
0.00032
ND
80
68-131
VINYL ACETATE
0.00015
ND
92
67-127
CIS-1,2-DICHLOROETHENE
0.00031
ND
104
78-133
2,2-DICHLOROPROPANE
0.00029
ND
92
72-12 3
BROMOCHLOROMETHANE
0.00049
ND
103
71-139
CHLOROFORM
0.00029
NO
97
81-J26
1,1,1-TRICHLOROETHANE
0.00028
ND
99
76-129
CARBON TETRACHLORIDE
0.00081
ND
98
81•133
1, 1 -DICHLOROPROPENE
0.00059
NI)
102
80-13 5
BENZENE
0.00038
ND
104
78-131
94 103 9 11
76-127
ETHYL ACETATE
0.00074
ND
100
63-122
1,2-DICHLOROETHANE
0.00055
ND
106
72-132
TRICHLOROETHENE(TCE)
0.00028
ND
99
79-126
93 92 1 14
71-120
1,2-DICHLOROPROPANE
0.00023
ND
109
79-126
01BROMOETHANE
0.00043
ND
98
71-129
UUMMEN I S:

DA/OC Summarry
Method: '{}I!. 50 015 MjQ00 PPB QCl IFILE NAME: SLC0703
CLIENT: E S SOUTHEAST, LLP. (PROJECT: 1 PDA)
Page 2 of 2
SAMPLE ID:
Compound
MDL
rJ &g
36495 —
Method
Blank
05
LCS %
Recovery
LC5 MS
Acceptr
noge 4 Rec.
MSD
RPD
QC LIMITS
RK ItVc
I. Ree.
BROMODICHLOROMETHANE
0.00026
ND
100
71-126
A-METHYL-2-PENTANONE
0.000521
ND
97
67-122
CIS-1,3-DICHLOROPROPENE
O-OD023
ND
100
70-123
TOLUENE
0,00027
ND
104
65-139 94 1(Ill 6
13 76-125
RANS-I,3-DICHLOROPROPENE
0-00052
ND
lop
65-111
U,i,a-innnLvnvcInnilc Iv.vuv,+41 IN Li 1 1U44 144-r3f 1 k k I I
I �7'RACHLOROETHENE(PCE)
0.110026
ND
%
61-164
HEXANONE
0,00050
ND
97
63-118
DIBROMOCHLOROMETHANE
0,00037
ND
99
60-1 8
1,3-DICHLOROPROPANE
0.00033
ND
101
64-135
1,2-DIBROMOETHANE(EDB)
O.00074
ND
102
68-131
CHLOROBENZENE
0.00029
ND
Too
87-121 90 93 4 13 75-130
I,1,1,2-TETRACHLOROETHANE
OAD041
ND
99
95-131
ETHYLBENZENE
0, 00078
NCB
101
91-121
TAL XYLENES(M&P, 0)
0,00056
ND
to]
88-127
STYRENE
0,00037
ND
100
88-124
BROMOFORM
0.00045
ND
{i4
66-133
ISOPROPYLBENZENE
0.00027
ND
42
90-125
BROMOBENZENE
0,1700Z$
ND
I00
81-k28
1.23-TRICHLOROPROPANE
0 ffE}ul
NT)
adr;%
TRANS-I,4-DICHLORO-2-BUTENE
0_00050
NO
91
77-120
N-PROPYLBENZENE
0.00058
N D
92
88-123
-CHLOROTOLUENE
0.00050
ND
99
86-126
-CHLOROTOLUENE
0.00042
ND
100
82-125
1,3,5-TRlMFTRYl_GiEr4Z =NE
0.00054
ND
97
$ -124
IFRT-Iltn-Yl,BFNT.ENE
0,00029
ND
98
E,IA-TRIMETNYLBENZENt=
0.00056
ND
98
87-125
SEC-51,[TYLEENZENE
0.00047.
ND
101
88-127
I,3-DICMLORORENZENE
0.00041
ND
96
79-127
1.1,2,2•TETRA0ILDP0 T4AMr=
0.00078
N D
I (M
72-128
P-ISOPROPYLTOLUFfNE
O,OOLu18
ND
NO
86-128
1,4-QlCH[,0R(lRENZFMF-
0.00042
IUD
99
W122
1,20CNLOROBENZENE
0.00039
ND
102
M 123
WBUTYLBENZENE
0.00033
ND
101
84-127
1.2-DEERLIMO-3•CI#LOROPROPANEfE3Pc'i'}
0,00067
ND
97
66r125
1,2,41-TRJCHLOROBENZ@NE
0,00025
ND
103
76-117
NAPHTHALENE
0.00047
ND
1D6
79-119
1,2,3-TRICHI,OR0flFiNZFNE
D_00036x
r41]
LOb
7,2-118
COMMENTS:

Summary
FILE NAME: SLC0709
CLIENT. EUS SOUTHEAST,
LLR (PROJECT: PIS
Sample ED:
36485 — 06 11
� INSTUMENT: MS-2
Page 1 of 2
Extraction Method
5035
Date Extracted
NIA
Weight Extracted
S131SML
Final Extract Volume
5015ML
Date Analyzed
07109/17
% Surrogate Recovery
log
97
98
cce tance Range
(70-130)
(70-I3U)
(70-1")
�v I Ml —m7s F OC
LINUTI;
Compound
MDL
insilig
Method
Blank
LCS %
Recuve
Aceeptunce
Rene
% Rcc. % Ifec. RPD RPD
% REC
DICHLORODIFLUOROMETHANE
0,00047
ND
104
56-I26
CHLOROMETHANE
0.00050
N,D
93
62-133
VINYL CHLORIDE
0.00059
ND
1119
67-136
BROMOMETHANE
0.00028
ND
111
72-130
CHLOROETHANE
0.00029
ND
IN
73-138
'CRICHLOROFLUOROMETHANE
0-00037
ND
1"
78-131
ACETONE
0 00 15 V
ND
99
62-119
ACRYLONITRILE
0.00036
ND
147
76-135
-BUTANONE
0.00152
NE)
113
62-122
I,I-DICHLOROETHENE
0,00059
ND
IDS
82-133
{} 95 6 14
61-145
METHYI, IODIDE
0.00307
ND
115
70-136
CARBON DLSULFIDE
0.00042
Nib
105
76-132
METHYLENE CHLORIDE
0-00138
ND
l08
68-135
MANS- i,2-rACHLO ROFTHENE
0,00107
ND
103
80-134
l,I-DICKULROE HANE
0A0036
ND
IU7
74-140
150MOPVL F.THER(IPE)
0.00024
ND
110
67-139
M ETHYL-TERT-BUTYL ETHER(MTBE)
0.00032
ND
110
68-131
VINYL ACETATE
0„00035
iqD
100
67-127
CIS- 1,2-DICH LOROETHENE
0.00011
ND
107
78-133
2,2-DICHLOROPROPANE
0.00029
ND
98
72-123
BROMOCHLOROMETHANE
0.00049
ND
106
71-139
CHLOROFORM
0.00029
ND
102
81-126
1,1,1-TRICHLOROETHANE
0,00028
ND
105
76-129
CARBON TETRACHLORIDE
0.00081
ND
101
81-133
I,1-DICHLOROPROPENE
0.00059
ND
102
80-131
BENZENE
0,00038
ND
105
78-131
94 103 4 11
76-127
ETHYL ACETATE
0.00074
ND
113
63-122
1,2-DICHLOROETHANE
0.00055
ND
105
72-132
TRICHLOROETHENE(TCE)
0.00028
ND
100
79-126
93 92 1 14
71-120
1,2-DICHLOROPROPANE
0.00023
NU
J01
79-126
DIBROMOETHANE
0.00043
NI)
l02
71.129
COMMENTS: a

s
Method: tlZf�l�.�{ 111.UQ�51Rkf1t10fk PER OCiOCi FILE NAME: SLC0709 I Page 2 of 2 j
SAMPLE ID: 36485 - 06, 11
LCS
Aceeplr
Ouge
Ms
MSD
RPD
C LIMITS
NIDL
Compound Fugft
Method
LCS %
RFC
Blank
Recovc �'
% Rec.
a Rec.
BROMODICHLOROMETHANE 0.00026
ND
99
71-126
METHYL-2-PENTANONE DbD0521
ND
105
67-122
CIS- 1,3-DICHLOROPROPENE 0.000231
ND
98
70-125
TOLUENE 0.00027
ND
ND
ND
97
98
99
65-139
65-131
64-137
94
IN
6
13
76-125
TRANS-1,3-DICHLOROPROPENE 0.00052
1,1,2-TRICHLOROETHANE 0.00041
ETRACHLOROETHENE(PCE) 0.00026
ND
93
61-164
-HEXANONE 0.00050
ND
105
63-118
DIBROMOCHLOROMETHANE 0.00037
ND
99
60-138
1,3-DICHLOROPROPANE 0.00033
ND
101
64-135
1,2-DIBROMOETHANE(EDB) 0.00074
ND
104
68-131
CHLOROBENZENE 0.00029
ND
96
87-121
90
93
4
13
75-130
1, 1, 1,2-TETRACHLOROETHANE 0.00041
ND
97
85-131
ETHYLBENZENE 0.00028
ND
95
91-121
TOTAL XyUNEWAP. Or 0.000561
ND
93
88-127
STYRENE 0.00037
ND
94
88-124
BROMOFORM 0.00045
ND
102
66-133
ISOPROPYLBENZENE 0.00027
ND
95
90-125
BROMOBENZENE 0.00028
ND
95
81-128
1,2,3-TRICHLOROPROPANE 0.00043
ND
102
66-132
TRANS-1,4-DICHLORO-2-BUTENE 0.00050
ND
99
77-120
N-PROPYLBENZENE 0.00058
ND
89
88-123
CHLOROTOLUENE 0.00050
ND
94
86-126
a-CHLOROTOLUENE 0.00042
ND
92
82-125
1,3,5-TRIMETHYLBENZENE 0.00054
ND
911
89-124
RT-BUTYLBENZENE 0.00029
ND
94
89-128
1,2,4-TRIMETHYLBENZENE 0.00056
ND
93
87-125
SEC-BUTYLBENZENE 0.00042
ND
92
88-127
1,3-DICHLOROBENZENE 0.00041
ND
94
79-127
1,1,2,2-TEfRACHLOROETHANE 0.00078
ND
104
72-128
P-ISOPROPYLTOLUENE 0.00048
ND
96
86-128
1,4-DICHLOROBENZENE 0.00042
ND
97
80-122
1,2-DICHLOROBENZENE 0.00039
ND
101
80-123
hE-BUTYLBENZENE 0.00033
ND
95
84-127
1,2-DIBROMO-3-CHLOROPROPANE(DPCP) 0.00067
ND
105
66-125
l
1,2,4-TRICHLOROBENZENE 0.00025
ND
104
76-117
NAPHTHALENE 0.00047
10.00036
ND
113
79-119
1,2,3-TRICHLOROBENZENE
ND
110
72-118
COMMENTS:

QA/QC Summary
Method: 8270 100/200 PPB QQ FILE NAME: SLC0630-MSI Page 1 of 2
CLIENT: ECS ROJECT:WPDA)
Sample ID: 36485--05-06,11 INSTUMIENT: MS-1
Extraction Method
3550
Date Extracted
06/30n7
Weight Extracted
30G
Final Extract Volume
11ML
Date Analyzed
W30117
% Surrogate Recovery
75
77
74
79 81
67
Acceptance Range
(21 - 110)
(10 - 110)
(35 -114)
(10 - 123) (43 - 116)
(33 -141)
LCS MS
Accept.
Range % Rec.
MSD
RPD
QCLIMITS
Compound
MI)L
Method
LCS %
% Rec.
m }h
Blank
Recover
RPD
%REC
N-Nitrosodimethylamine
0.047
ND
73
51-108
Bis(2-chloroethyl)ether
0.066
ND
65
49-110
Phenol
0.066
ND
70
52-118 61
64
6
42
12-110
2-Chlorophenot
0.060
ND
72
55-111 67
66
1
40
27-123
1,3-Dichlorobenzene
0.085
ND
72
54-108
1,4-Dichlorobenzene
0.050
ND
74
55-112 60
61
2
28
36-97
1,2-Dichlorobenzene
0.047
ND
73
53-112
Benzyl Alcohol
0.087
ND
77
47-160
2-Methylphenol(0-CRESOL)
0.072
ND
74
35-127
3&4-MethylphenolOA&P CRESOL)
0.063
ND
72
47-132
Bis(2-chloroisopropyl)ether
0.063
ND
69
37-116
N-nitrosodi-n-propylamine
0.057
ND
1 77
45-123 71
74
4
38
41-116
Hexachloroeffime
0.069
ND
72
52-107
2-Nitrophenol
0.066
ND
78
56-117
2,4-Dimethylphenol
0.079
ND
64
35-118
Nitrobenzene
0.072
ND
68
50-99
Isophorone
0.079
ND
56
48-100
Bis(2-chloroethoxy)methane
0.063
ND
63
51-96
Benzoic Acid
0.348
ND
89
D-136
2,4-Dichlorophenol
0.066
ND
72
42-117
1,2,4-TYichlorobenzene
0.047
ND
67
53-95 78
75
3
28
39-98
4-Chioro-3-methylphenol
0.141
ND
67
49-128 79
78
0
42
23-97
4-Chloroaniline
0.479
ND
61
44-116
xexachlorobutadiene
0.057
ND
69
39-121
2-Methylnaphthalene
0.056
ND
68
63-105
Dibenzofuran
0.063
ND
74
50-128
2,4,6-Trichlorophenol
0.044
ND
71
23-167
2,4,5-Trichlorophenol
0.107
TAD
79
32-158
MIA ,
I

QA/QC Summary
Method: 8270 100/200 PPB
FILE NAME: SLC0630-MS1
Page 2 of 2
CLIENT: ECS ROJECT:WPDA
LCS
Acceptr
ange
C L€1�+11�I'8
Compound
MDL
Method
LCS %
MS
% Rec.
MSD
% Rec.
PD
mg/kg
Blank
Recovery
2-Methyl-4,6-Dinitrophenol
0.170
ND
84
64-140
RPD
%REC
4-Nitrophenol
0.232
ND
83
50-140
48
47
1
5U
10-8o
Hexachlorocyclopentadiene
0.079
ND
86
12-129
2-Chloronaphthalene
0.046
ND
88
46-127
Dimethyl phthalate
0.066
ND
74
51-113
Acenaphthylene
0.066
ND
75
41-128
2,6-Dinitrotoluene
0.075
ND
85
58-120
Acenaphthene
0.057
ND
72
49-129
49
47
4
31
46-118
2,4-Dinitrotoluene
0.079
ND
74
53-123
60
53
11
18
24-96
Fluorene
0.060
ND
85
49-127
Diethyl phthalate
0.072
ND
72
47-117
4-Chlorophenyl phenyl ether
0.050
ND
99
46-134
2,4-Dinitrophenol
0.188
ND
88
45-147
Azobenzene
0.083
ND
82
45-117
Pentachlorophenol
0.129
ND
75
64-144
58
49
17
50
9-103
N-Nitrosodiphenylamine
0.066
ND
70
2-127
4-Bromophenyl phenyl ether
0.085
ND
72
50-130
Hexachlorobenzene
0.069
ND
68
50-131
Phenanthrene
0.075
ND
82
50-135
Ardf ncenr
0.072
ND
68
57-131
IDi-N-Butyl phthalate
0.097
ND
78
47-115
IFluoranthene
0.085
ND
81
47-128
Benzidine
0.048
ND
5
D-150
Pyrene
0.038
ND
78
56-120
68
70
2
31
26-127
Benzyl butyl phthalate
0.060
ND
69
55-122
Benzo(a)mthracene
0.050
ND
78
62-119
3,3-Dichlorobenzidine
0.122
ND
39
D-114
Chrysene
0.060
ND
73
60-124
Bis(2-ethyl-hexyl)phthalate
0.066
ND
77
46-124
Di-N-octyl phthalate
0.079
ND
94
49-131
Beircno(b)fluoranthene
0.122
ND
109
60-132
Bemo(k)fluorsnthene
0.110
ND
62
39-137
Benzo(a)pyrene
0.047
ND
93
63.126
indeno(1,2,3-cd) pyrene
0.094
ND
103
39-159
Dibenzo(a,h)anthracene
0,088
ND
96
20-158
Benzo(g)i,i)perylene
0.097
ND
93
40-158
NIA
= Data Not Avanable ' = OUT OF RANGE
I

4¢�k �I�u
I IE I.ARCh ANA1 ricAl %.
Ali
LABORATORIES. INC. want =
t Analytical/Process Consultations
Qttalitp Control Summary Results for Project Identified as WPDA (An ECS Project collected, 27 June 2017)
Pesticides
F,PA Method 8081B
i'aramcter
Method Blank
Matrix
Spike
1 RCIm,5IC—P I
Spike
Diplicate
'A Recilvery
Quality
Control
Limits
Atkolm
Aldrin
ND
97
97
70-130
MG
alpha-Rt-IC
ND
N/A
NIA
N/A
MG
beta-131IC
KG
N/A
N/A
N/A
mci
delta-131-IC
ND
_
N/A
N/A
N/A
MG
gamma-131 IC(Lindane)
ND
110
112
NIA
70-130
N/A
_
MG
tiIG
Uhlordane. Total ND N/A
(4.4'-DDD
ND
N/A
N/A
N/A
,MG
ND
NIA
N/A
70-130
MG
4,4'-1)1)'1'
ND
116
121
70-130
MG
Dieldrin
ND
105
103
N/A
MG
Endosulfan I
ND
N/A
NIA
N/A
MG
Endosulfan 11
ND
N/A
N/A
N/A
+MG
t�.ndosullan sulfate
ND
N/A
N/A
N/A
MG
I:ndrin
ND
122
115
70-130
MG
Endrin aldehyde
ND
N/A
N/A
N/A
MG
Ieptachlor
ND
104
105
70-130
N1G
Heptachlor epoxide
ND
N/A
N/A
NIA
MG
Methoxychlor
ND
N/A
N/A
N/A
MG
I oxaphenc
ND
WA
N/A
N/A
MG
Corresponding Samples: 36485-01-04.07-10
% - Percent
ND = Non Detected
N/A = Not Available

RESEARCh & ANAlyTICAI
LABORATORIES, INC.
Analytical/Process Consultations
Quality Control Summary Results for Project Identified as WPDA)
(An ECSCaro Iinas, LL Prylycl_]
Prep
Parameter
Blank
Silver, Total
BDL
Arsenic, Total
BDL
Barium, Total
BDL
Cadmium, Total
BDL
Chromium, Total
BDL
Lead, Total
BDL
Selenium, Total
BDL
Mercury, Total
BDL
ICV
Spike
Duplicate
% Recovery
% Recovery
% RSD
100
95
5
95
94
t
103
101
6
96
93
6
96
97
6
106
95
6
95
87
5
92
100
4
Corresponding Sample Numbers: 36485-13-14
% = Percent
ICV = Initial Calibration Verification
P.O. Box 473 • 106 Short Street • Kernersville, North Carolina 27284 • 336-996-2841 • Fax [phone]
www.randalabs.com

QA/QC Summary
Method: 8 0 6 0 B 5/10/20/50/50 1 P FILE NAME: WLC0703
L.IENT., ECS SOUTHEAST, L LP. PIROIE T : WPDA)
Sample ID:
36485 -12
INSTUMENT: MS-2
Page 1 of 2
Extraction Method
NIA
Date Fxtracted
NiA
Weight Extracted
25ML
Final Extract Volume
25ML
Date Analyzed
Q7M3/17
% Surmgafe Recovery
97
98
87
ere t>xnce Ran a
(70µ130)
(10-130)
(70-130)
LCS
Acceptance Rana
g
MS
MSD
RPD
QC
LIMITS
Compound
MDL
Method
LCS %
%Rec.
%Rec.
RPD
% REC
ug/L
Blank
Recovery
DICHLORODIFLUOROMETHANE
0.12
ND
82
70-130
LOROMETHANE
0.07
ND
94
70-130
VINYL CHLORIDE
0.11
ND
99
70-130
BROMOMETHANE
0.18
ND
88
70-130
CHLOROETHANE
0.11
ND
96
70-130
1CHLOROFLUOROMECHANE
0.09
ND
99
70-130
ACETONE
1.18
ND
93
70-130
CRYLONITRILE
12.38
ND
110
70-130
2-BUTANONE
0.88
ND
89
70-130
1, 1 -DICHLOROETHENE
0.09
ND
103
70-130
106
96
9
14
70-130
METHYL IODIDE
0.19
ND
86
70-130
CARBON DISULFIDE
0.45
ND
102
70-130
METHYLENE CHLORIDE
0.57
ND
112
70-130
TRANS-I,2-DICHLOROETHENE
0.10
ND
105
70-130
1,1-DICHLOROETHANE
0.17
ND
102
70-130
ISOPROPYLETHER(IPE)
0.12
ND
107
70-130
METHYL-TERT-BUTYLETHER(MTBE)
0.16
ND
99
70-130
VINYL ACETATE
0,24
ND
101
70-130
CIS-1,2-DICHLOROETHENE
0.09
ND
101
70-130
2,2-DICHLOROPROPANE
0.09
ND
103
70-130
BROMOCHLOROMETHANE
0,12
ND
94
70-130
CHLOROFORM
0,05
ND
106
7(4130
1, 1, 1-TRICHLOROETHANE
0.12
ND
110
70-130
CARBON TETRACHLORIDE
0.10
ND
106
70-130
I,I-DICHLOROPROPENE
0.12
ND
109
70-130
BENZENE
0.05
ND
112
70-130
124
120
4
11
70-130
ETHYL ACETATE
0.35
ND
89
70-130
1,2-DICHLOROETHANE
0.09
ND
101
70-130
TRICHLOROETHENE(TCE)
0.12
ND
107
70-130
113
107 1
5
14
70-130
1,2-DICHLOROPROPANE
0.10
ND
104
70-130
DIBROMOETHANE
0.25 F
ND
100
70-130
COMMENTS:

QA/QC Summary
Method. 82601620ORM101201501500110PU
PP$
OCI
JIFILE NAME: WLCO703
Page 2 of 2
CLIENT: E S SOUTHEAST, LLP. (PROJE T ; WPDA)
SAMPLE ID:
Compound
MDL
u L
P�
3 4S5
Method
Blank
- 12
LCS %
Recovery
�"Y
LCS
Acceptr
unge
K4 q KSD c L11W ITS
RPU
o/, Rec. ° Rec. �Pa �a relic
BROMODICHLOROMETHANE
0,07
ND
99
70- 130
4-METHYL-2-PENTANONE
J .0 I
ND
92
70-130
CIS-1,3-DICHLOROPROPENE
0.10
ND
95
70-130
TOLUENE
0.2+6
IqD
107
70-130
119 HI 7 €3
70-130
TRANS-I,3-DICHLOROPROPENE
0.12
ND
92
70-130
1,1,2-TRICHLOROETHANE
0,20
ND
105
70-130
ETIZACHLOROETHENE(PCE)
0.17
ND
106
70-130
-HEXANONE
1.42
NE)
84
70-130
DIBROMOCHLOROMET14ANE
0.07
ND
99
70-130
1,3-DICHLOROPROPANE
0.13
ND
93
70-130
1,2-DB3ROMOETHANE(EDB)
0.11
ND
91
70-130
CHLOROBENZENE
0.10
ND
99
70-130
123 117 S 13
70-130
1, 1, 1,2-TETRACHLOROETHANE
0.10
ND
lo&
70-130
ETHYLBENZENE
0,07
ND
102
70-130
TOTAL XYLENES(M&P, 0)
0.29
ND
102
70-130
STYRENE
0-04
ND
100
70-13 0
BROMOFORM
0.29
ND
90
70-130
�ISOPROPYLBENZENE
0.08
ND
102
70-130
BROMOBENZENE
0.07
ND
94
70-130
1,2,3-TRICHLOROPROPANE
0.11
ND
99
70-130
TRANS-I,4-DICHLORO-2-BUTENE
0.52
ND
72
70-130
N-PROPYLBENZENE
0.08
ND
100
70-130
_
2-CHLOROTOLUENE
0.10
ND
104
70-130
4-CHLOROTOLUENE
0.09
ND
100
70-130
1,3,5-TRIMETHYLBENZENE
0.07
ND
102
70-130
GRT-BUTYLBENZENE
0.08
ND
101
70-130
1,2,4-TRIMETHYLBENZENE
0.07
ND
102
70-130
SEC-BUTYLBENZENE
0.12
ND
99
70-130
1,3-DICHLOROBENZENE
0.12
ND
95
70-130
1,1,2,2-TETRACHLOROETHANE
0.08
ND
88
70-130
P-ISOPROPYLTOLUENE
0.09
ND
101
70-130
1,4-DICHLOROBENZENE
0.08
141)
107
70-130
1,2-DICHLOROBENZENE
0.09
ND
104
70-1 30
N-BUTYLBENZENE
0,10
ND
109
70-130
1,2-DIBROMO.3-CHLOROPROPANE(DPCP)
0.49
ND
110
70-130
1,2,4-TRICHLOROBENZENE
0.47
ND
I U2
70-130
NAPHTHALENE
0.19
ND
103
70-130
L,2,3-TRICHLOROBENZENE
0.18
NO
101
70-130

Method: 8270/625 11
CLIENT:ECS PRO.]
SAMPLE ID:
Extraction Method
Date Extracted
Weight Extracted
Final Extract Volume
Date Analyzed
Surrogate Recovery
Acceptance Range
Compound
N-Nitrosodimethylsmine
Bis(2-chloroethyl)ether
Phenol
2-Chlorophenol
1,3-Dichlorobenzene
1,4-Dichlorobenzene
1,2-Dichlorobenzene
N-nitrosodi-n-propylamine
Hexschloroethene
2-Nitrophenol
2,4-Dimethylphenol
Nitrobenzene
Isophorone
Bis(2-chloroethoxy)rneUmne
2,4-Dichlorophenol
1,2,4-Trichlorobenzene
4-Chloro-3-methylphenol
Naphthalene
Henchlorobutadiene
2,4,6-Trichlorophenol
2-Methyl-4,6-Dinitrophenol
4-Nitrophenol
FILE
36485-12
3510
06/30n 7
1L
1ML
06/30/17
WLC0630-MS3
INSTRUMENT:MS-3
41 26 74 75 71 64
(5 - 77) (7 - 64) (29 -149) (12 - 123) (10 - 133) (20 -13
LCS MS MSD
MDL Method LCS % Accept. RVF)
0/ Dar- O/ Rsar-
UG/L
Blank
0.970
ND
0.430
ND
0.460
ND
0.300
ND
0.250
ND
0.200
ND
0.100
ND
0.380
ND
0.500
ND
0.220
ND
0.670
ND
1.550
ND
0.500
ND
0.510
ND
0.420
ND
0.540
ND
0.560
ND
1.830
ND
0.710
ND
0.770
ND
0.540
ND
3.250
ND
6.670
ND
0.970
ND
NIA
= Data Not Available
Recovery Range
49
8-104
69
45-111
28
D-76
23
23
63
30-107
66
66
63
48-90
63
50-90
61
61
64
50-93
68
50-107
72
47-111
81
75
63
36-90
69
33-110
64
43-100
69
46-112
56
50-104
64
49-105
68
33-108
59
47-95
76
77
67
44-107
78
81
68
50-96
60
24-100
65
22-124
76
16-115
29
1-69
20
18
73
16-85
' = FAILED
C
I
Page 1 of 2
LIMITS
% REC
12-110
27-123
36-97
41-116
28 39-98
a2 23-97
9 1 50 G 1"0

QA/QC Summary
Metited.8270/62 !OO/200 PPB C FILE NAME: WLC0630-MS3 Page 2 of 2
CLIENPECS ROJECT:WPDA
LCS
Compound MDL Method LCS % Acceptr MS MSD
p UG/L Blank Recovery ange % Rec. % Rec. 1 PD C L mrrs
2-Chloronaphthalene 0.420 ND 83 51-100 RPD °6REC
Dimethyl phthalate 0.400 ND 72 47-107
Acenaphthylene 0.150 ND 68 49-100
2,6-Dinitrotoluene 0.670 ND 78 49-106
Ace mphthene 0.280 ND 76 48-102 53 57 6 31 46 118
2,4-Dinitrotoluene
Diethyl phthalate
4-Chloropheyl phenyl ether
0.670
0.820
0.730
ND
ND
ND
70
84
93
50-106
49-107
43-112
67 1 55 20 38
24-96
2,4-Dinitrophenol
4.190
ND
66
D-118
Pentachlorophenol
5.220
ND
67
15-123
52 47 14 50
9-103
N-Nitrosodiphenylamine
1.150
ND
68
35-121
4-Bromophenyl phenyl ether
0.670
ND
68
48-107
Hexachlorobenzene
0.390
ND
67
50-102
Pfzcmuhsene
0.280
ND
75
42-105
Anthrecene
0.200
ND
71
44-104
Di-N-Butyl phffialate
Benzidine
0.650
3.370
ND
67
44-111
ND 6 D48
Pyrene
1.920
ND
85
39-107
71 66 1 31
26-127
Benzyl butyl phthalate
1.220
ND
84
39-116
Benzo(a)anthracene
0.380
ND
80
36-114
3,3-Dichlorobenzidine
5.050
ND
37
6-52
O rpene
0.700
ND 1
86
45-99
Bis(2-ethy1-hexy1)phthal9e
1.140
ND
$$
30-134
Di-N-Octyl phthalate
0.740
ND
ND
102
107
37-131
49-107
Benzo(b)fluoranthene 0.770
Benzo(k)fluoranthene
0.600
ND
74
37-112
Benzo(a)pyrene
0.430
ND
93
49-105
Indeno(1,2,3-cd)pyrene
1.210
ND
103
38-122
�Dibenzo(a,h)anthracene
1.680
ND
9 "
43-118
Benzo(gAi)perylene
1.780
ND
96
42-119
NIA = Data Not AvaIIable
* = FAILED

\AL)TIGU.
r�i RUNMG \' 1 AI.
AE$ER\'(CPS, "C.
1. Client Name: R&A Laboratories
2. Carrier: FeclEx UPS ❑ USPS❑ Client0 Courier0 Othei
3. Shipping container/cooler received In good condition?
4. Custody seals present on shipping container?
5. Custody seals intact on shipping container?
6. Temperature blanks present?
(Cooler temperature(s) within limits of 000 [See Item 13 and 14 for
7' temperature recordings.]
S. Chaim yr CkFtody ICDq riteppnt7
9_ Chain of Custody f8ncd. date, and ;Imed when reilr`pu4nced and receive
10. Sampler name and/or signature on COC?
11. Were all samples received within holding time?
12. TAT marked on the COC?
13. Cooler 1 Temperature 4.2 °C Cooler 2 Temperature
14. Cooler 5 Temperature °C Cooler 6 Temperature
15. Comments:
16. J=re sample containers Intact upon receipt?
17. Custody seals present on sample containers?
18. Custody seals intact on sample containers?
19.I1)o sample container labels match the COC?
20. Are analyses requested indicated on the COC?
21. Were all of the samples listed on the COC received?
22. Was the sample collection date/time noted?
23. Did we receive sufficient sample volume for Indicated a
24. Were samples received in appropriate containers?
25. Were VOA samples received without headspace (< 1/4"
26. Were trip blanks submitted?
27. Comments:
28.
29,
SAMPLE/COOLER RECEIPT CHECKLIST
Yews No
i*J
AES Work Order Number: 1706S57
Details
O O Cooling initiated for recently collected samples / ice
O ------ .I —I
It 8a TAT zncica[ea. pt
° L Cooler 3 Temperature
°c Cooler 7 Temperature
Yes No N/A
with w=dard TA1 pe+ TLr;Tu & Cond;iio r.,
'C Cooler 4Temperature
_
or Cooler 8 Temperature
Clear Save as
Comments
_C
certify that I have completed sections 1-15 (dated initials). MJ 6/30/17
Details Comments
O1
f
0
.ncam¢leLe Info �i H192ible
�J
lJ
no label otfier [j
•
OO
O
samples received but not listed on COC
samples listed on COC not received
Yes No N/A
on COC L not listed on CDC
I certify that I have completed sections 16-27 (dated Initials). AJ 6/30/17
Details Comments
I certify that I have completed sections 28-30 (dated initials). AJ 6/30/17
Checklist 1/19/17 Rev 0. Locked
11 of 13

Analytical Environmental Services, Inc
Date: 6-Jul-17
Client: R&A Laboratories
Project Name: WPDA ANALYTICAL QC SUMMARY REPORT
Workorder: 1706S59
BatchID: 244887
Sa-pleType: MBLK TmLCade; CKL.f1RTKA!rweEBBicLbm SWMIA
knllf)'" Resull RPT Limit SPK value SPK Ref Val
2,4,5-T
BRL
33
2,4,5-TP (Silvex)
BRL
33
2,4-D
BRL
33
2,4-DB
BRL
170
Dalapon
BRL
330
Dicamba
3 P L
33
Dichlorprop
BRL
33
Dinoseb
BRL,
85
MCPA
BRL
3300
MCPP
BRL
3300
Surr. DCAA
178.2
rs
166.7
Sample ID: LCS-244887
Client ID:
SampleType: LCS
TestCode:
CHLORINATED HERBICIDES Sw8151A
AnxiYtrcsu€.
RPT Limit
SPK value SPK Ref Val
2.4,5-T
192.2
33
166.7
2,4,5-TP (Silvex)
170.8
33
166.7
2,4-D
189.8
33
166.7
D►camba
180.3
33
166.7
Dichlorprop
194.8
33
166.7
Surr: DCAA
181.9
0
166.7
Sample ID: 1706P55-00IBMS Client ID:
SampleType: MS TestCode: CHLORINATED HERBICmES SWBISIA
Units: ug(Kg Prep Date. 06/30/2017 Run No: 346751
BatchID: 244887 Analysis Date: 06/30/2017 Seq No: 7614888
%REC. Low Limit High Limit RPD Ref Val a IRYT) RPD Limit Qual
€07 46.5 1'r5
Units: ug/Kg
BatchID: 244987
Prep Date: 06/30/2017 Run No: 346751
Analysis Date: 06/30/2017 Seq No: 7614889
%REC Low Limit High Limit
€15
47.3
121
102
54
119
L14
38.2
'29
108
58.4
:12G
L17
48.1
_18
109
46.5
!35
RPD Ref Val YO1LPI7 RPD Limit Qual
Umts: ug/Kg-dry Prep Date: 06/30/2017 Run No: 346751
BatchID: 244897 Analysis Date: 06/30/2017 Seq No: 7614991
�8,y l4 Result RI Limit SPK value SPK Ref Val e/oREC
2,4,5-T 190.3 4f, 201.5
94.4
QC LIl'xrn: > Greater dw Rauh value < Less tbaa Rem', value
BRL Below reporting limit E Edimated (value above quantitaboo rage)
Pfitimeted value detected below Reporting Limit N An alylo not NELAC certified
Rpt Liu Reporting Limia S Sptloe Recovery oulsWe limib due to matrix
I,ow I lmiT High Limit
46.1
RPD Ref Val
9/9R AL]
RPD Limit Qua]
S Aenlyte detected in the associated method bleak
Holding times for preparation or analysis exceeded
-. RPD ouuida limits due to c astrut
12 of 13

Analytical Environmental Services, Inc
[tale; 6-Jul-17
Client: R&A Laboratories ANALYTICAL Project Name: WPDA QC SUMMARY REPORT
Workorder: 1706559
BatchID: 244887
SampleType: MS
AoaEyi:
2,4,5-TP (Silvex)
2,4-D
Dicamba
Dichlorprop
Surr: DCAA
x.ucnt tau:
TestCode: CHLORINATED HERBICIDES SWBISIA
Res�.tc
RPT Limit
SPK value SPK Ref Val
188.4
40
201.5
212.1
40
201.5
211.1
40
201.5
215.1
40
201.5
219.8
0
201.5
sample i7uar55-OUIBMSD Client 1D:
SampleType: MSD TestCode: CHLORINATED HERBICIDES SW8151A
A,,3p1 Result RPT Limit SPK value SPK Ref Val
2,4,5-T
183.5
40
201.5
2,4,5-TP (Silvex)
180.8
40
201.5
2,4-D
199.0
40
201.5
Dicamba
206.9
40
201.5
Dichlorprop
205.5
40
201.5
Surr: DCAA
192.8
0
201.5
Q an:i9sxs- > Greater than Rrwit vatic
BRL Below repotting limit
Estimated value dskcW below Reporting Limit
Rpt Um Repotting limit
Units:
ug/Kg-dry
Prep Date:
06/30/2017
BatchID: 244887
Analysis Date:
06/30/2017
err' XW
Low Limit High Limit RPD Ref Val %RPD
93.5
55
123
105
45.1
125
105
50.5
120
107
47.2
W
109
46.5
13S
Units:
ug/KgAq
Prep Date:
06/30/2017
BatchID: 244887
Analysis Date:
06/30/2017
%REC
Low Limit High Limit RPD Ref Val %RPD
91.1
46.1
123
190.3
3.64
89.7
55
123
188.4
4.08
98.7
45.1
125
212.1
6.37
103
50.5
120
211.1
2.00
102
47.2
125
215.1
4.58
95.7
46.5
135
219.8
0
< [Am than ResWt vdm
E Estimated (vdue above gtmntitetlon rage)
- Amlyte not NPLAC certified
S Spike Rewvery outside limits due to msvix
Run No: 346751
Seq No: 7614891
RPD Limit Qua]
Run No: 346751
Seq No: 7614992
RPD Limit Qual
B Analyte detected in the astoeintad mctbod black
H Holding times for ptepamtioo or analysis aiaeded
R RPD outside limits die to matrix
42.6
31.7
31.9
29.9
33.9
13 of 13

,
AiceAnalytical r
www.pacelabs.com
QUALITY CONTROL DATA
Project: WPPA
Pace Project No.: 92346216
QC Batch: 367583 Analysis Method: ASTM D2974-87
QC Batch Method: ASTM D2974-87 Analysis Description: Dry Weight/Percent Moisture
Associated Lab Samples: 92346216001
SAMPLE DUPLICATE: 2037541
92346343001 Dup
Parameter Units Result Result RPD Qualifiers
Percent Moisture % 86.0 85.9 0
SAMPLE DUPLICATE: 2037542
92346283001 Dup
Parameter Units Result Result
Percent Moisture 9i 5 4 14.1
RPD Qualifiers
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersvllle, NC 28078
[phone]
Results presented on this page are In the units Indicated by the "Units' column except where an alternate unit Is presented to the right of the resutL
Date: 07/08/2017 10:45 AM
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 5 of 11

102OAnalytica(
aw w.pacelab&can
Project: WPPA
Pace Project No.: 92346216
QC Batch: 368030
QC Batch Method: EPA 7196 Modified
Associated Lab Samples: 92346216001
METHOD BLANK: 2039643
Associated Lab Samples: 92346216001
Parameter Units
Chromium, Hexavalent mg/k9
QUALITY CONTROL DATA
Analysis Method: EPA 7196
Analysis Description: 7196 Chromium, Hexavalent
Matrix: Solid
Blank Reporting
Result Limit Analyzed Qualifiers
ND 5.0 07/08/17 02:00
Pace Analytical Services, LLC
9800 Kincey Ave. Suite100
Huntersville, NC 28078
[phone]
LABORATORY CONTROL SAMPLE: 2039644
Spike LCS LCS % Rec
Parameter Units Conc. Result % Rec Limits Qualifiers
Chromium, Hexavalent mg/kg 25 24.6 9B 90-110
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2039645 2039646
MS MSD
92346216001 Spike Spike MS MSD MS MSD % Rec
Parameter Units Result Conc. Conc. Result Result % Rec % Rec Limits RPD Qual
Chromium, Hexavalent mg/kg ND 27 27 31.1 31.0 102 102 75-125 0
Results presented on this page are In the units Indicated by the "Units" column except where an atternate unit in presented to the right of the resutL
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 07/08/2017 10:45 AM without the written consent of Pace Analytical Services, LLC. Page 6 of 11

a e,AnaiXical e
+ »xw�ni'abk!rc�
QUALIFIERS
Project WPPA
Pace Projed No.: 92346216
DEFINITIONS
DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot
ND - Not Detected at or above adjusted reporting limit.
TNTC - Too Numerous To Count
J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit.
MDL -Adjusted Method Detection LlmtL
PQL - Practical Quantitetion Limit
RL - Reporting UmiL
Pare Analytical Services, LLC
98001anceyAve. Suite 100
Huntersvllie, NC 28078
[phone]
S - Surrogate
1,2-131phenylhydrazine decomposes to and cannot be separated from Azobertzene using Method 8270. The result for each analyte is
a combined concentration.
Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values.
LCS(D) - Laboratory Control Sample (Duplicate)
MS(D) - Matrix Spike (Duplicate)
DUP - Sample Duplicate
RPD - Relative Percent Difference
NC - Not Calculable.
SG - Silica Gel - Clean -Up
U - Indicates the compound was analyzed for, but not detected.
Add preservation may not be appropriate for 2 ChloroethyMnyl ether.
A separate vial preserved to a pH of 45 is recommended in SW846 Chapter 4 for the analysis of Acrolein and Acrylonitrile by EPA
Method 8260.
N-Ndrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for
each analyte Is a combined concentration.
Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes.
TNI -The NELAC Institute.
L.ADORATORII=S
PAST -A Pace Analytical Services - Asheville
PASI-C Pace Analytical Services - Charlotte
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except In full,
Date: 07M8/2017 10:46 AM without the written consent of Pace Analykal Services, LLC. Page 7 of 11

/�z /q!k?Vical e
w�Ie��eam
r
QUALITY CONTROL DATA CROSS REFERENCE TABLE
Pace Ana"cal Services, LLC
9800ldnceyAve. Suite 100
HuntersvlAe, NC 29078
[phone]
Project WPPA
Pace Projed No.: 92346216
Analytical
Lab ID Sample ID QC Batch Method QC Batch Analytical Method Batch
92346216001 36485-13 ASTM D2974-87 367583
92346216001 36485-13 EPA 7196 Modified 368030 EPA 7196 368181
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in M,
Date: 07/0 O1710:45 AM without the written consent of Pace Analytical Sawkes, LLC. Page 8 of 11

]IJ aceARal4ical ' i"•-�<•
1 Gxllmrr{ aio I,aui�i� r.,,ulgntr
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Asheville Eden''D Greenwood L} Huntersville C Raleigh[] Mechanicsville❑
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lelno shouA be aboye ftcenng to E'C
USDA Regulated Soil 1 ❑ N/A, v.alu samp'.er
')id—Pim Wiklwte in a Ruaranllne one wahln
the Unft:d Stales: CA, NY, cr SC lel+eck mapsja
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Project
p 'r
Is verified and within the acceptance
range for
` +�
WQ ; 9fr.3461
preservation samples.
'*Bottom half of box Is to list number of bottles
PN:
COI Ow Date: 07/IO/17
CLIENT: 92-R8A
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Research & Analytical
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Mobile 2470 impala Dave, Carisbad, CA 92010
` &Feld Office -Signal NIII, CA
Geochemistry, Inc, w handpmg.com E [e-mail]
P 760.804.9678 F 760.804.9159
fftional Instructions to Laboratory:
❑ Check If Project Ar dyte List is Attached
' Preferred V,OCCuunits (please choose one):
IJ I+ I
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qiTMobile & Fetd Office - &gncll i-NiCA
Geochemistry, Inc. handprrig.com Elnl"handpmg.r_prr,
P 760.804.9678 F 760.804,9159
Additional Instructions to Laboratory:
VAPOR 1 AIR Chain of Custody DATE: /17 -)
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Geochemistry, Inc.
2470 Impala Drive, Carlsbad, CA 92010
& Field Office - Signal Hill, CA
W handpmg.com E [e-mail]
P 760.804,9678 F 760.804.9159
VAPOR 1 AIR Chain of Custody
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❑ Check if Project Anal to List is Attached rUr C)
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Date Redd: 717514 .7
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Additional Instructions to Laboratory: 1 7-1
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2 of 13