23080_Almont Shipping II_S&SGRpt_20210811

Geosyntec
consultants
Geasyntec Con stiltan[sof NC, P.C.
Ms. Kathleen Markey
Brownfields Program Project Manager
North Carolina Department of Environmental Quality
1646 Mail Service Center
Raleigh, North Carolina 27699-1646
Geosyntec Consultants of NC, PC
210 N. Front Street, Suite 501
Wilmington, North Carolina 28401
PH 910.726.3652
www.Geosyntec.com
11 August 2021
Subject: Soil and Soil Gas Sampling Report
Subject Site: Almont Shipping II
19 & 41 Harnett Street, Wilmington, North Carolina (New Hanover County
Parcels No. R04716-001-026-000 & R04712-002-001-000)
Brownfields Project Number 23080-19-065
Dear Ms. Markey,
Geosyntec Consultants of NC, PC (Geosyntec), on behalf of Wilmington Waterfront Property
Owner, LLC (the Prospective Developer [PD]), is submitting this Soil and Soil Gas Sampling
Report (Report) to the North Carolina Department of Environmental Quality (NCDEQ) Division
of Waste Management (DWM) Brownfields Program for the above -referenced Brownfields
Property (Site). NCDEQ approved PD's 7 January 2020 Brownfields Property Application (BPA)
in an 18 February 2020 Letter of Eligibility (LOE).
This Report presents the results from the soil gas sampling completed in May 2021, and soil
sampling completed in June 2021 to support the issuance of a new stand-alone Brownfields
Agreement (BFA) for the Site.
1. BACKGROUND
The Site and surrounding area operated as the former Almont Shipping terminal from 1870 to
2005. As indicated in the Work Plan, a BFA was executed between the NCBP and Riverfront
Holdings II, LLC on 23 June 2008 for the Almont Shipping Brownfields Property (NCBP No.
10040-06-065; the 19 Harnett Street parcel and northwestern portion of the 41 Harnett Street parcel
are included in the Almont Shipping BFA until a new BFA is executed for the Site). The BFA was
amended in 2014 to include an additional land tract owned by CSX. The Site received eligibility
for entry into the NCBP on 18 February 2020 to establish a new, stand-alone BFA for the two
Harnett Street parcels.
GN7035/CAR210129 - 202108 Kettler Soil and Soil Gas Sampling Report

Ms. Kathleen Markey
11 August 2021
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Geosyntec°
c o i 1sultants
Geosymtee Consul Eants of NC:, PC.
The Site is planned to be developed for multi -family apartments, retail space, and an associated
parking garage. The objective and scope of work of this site investigation was to establish baseline
conditions to support issuance of the BFA. Geosyntec performed soil and groundwater sampling
at the Site in 2020; the results of the sampling were summarized in a 13 July 2020 NCDEQ
Brownfields Site Assessment Report. In May 2021, NCDEQ subsequently requested that soil gas
sampling be performed to evaluate for the potential for vapor intrusion risk at the Site. The soil
gas sampling scope of work was described in the Work Plan for Soil Gas Sampling dated 11 May
2021 (Work Plan) and approved by NCDEQ on 11 May 2021. As discussed in Section 4, soil gas
screening conducted during sampling revealed elevated concentrations of methane. Therefore, test
pitting was performed under the approved Environmental Management Plan (EMP) for the Site to
evaluate potential sources of methane. During test pitting activities, soil samples were collected
from select areas where evidence of contamination (e.g., staining and odor) was observed.
The remainder of this Report provides information regarding:
• Soil gas screening and sampling (Section 2);
• Soil sampling (Section 3);
• Soil gas and soil analytical results (Section 4); and
• Discussion and conclusions (Section 5).
2. SOIL GAS SCREENING AND SAMPLING
On 26 May 2021, Geosyntec and its subcontractor Catlin Engineers and Scientists (Catlin)
installed eight soil gas probes throughout the Site (SGP-1 to SGP-8) as shown in Figure 1. The
probes were installed generally from five to nine feet below ground surface (ft bgs) as shown in
Table 1.
The soil gas probes were constructed using 1/4-inch Nylaflow® tubing connected via a speed -fit
fitting to a six-inch stainless -steel implant. Approximately two feet of sand filter pack was placed
in the borehole to a height of approximately one foot above the probe. Granular bentonite was then
placed in six-inch lifts and hydrated with purified water to seal the remainder of the borehole to
ground surface. The soil gas probes were fitted with valves at the ground surface to maintain an
air -tight seal. Following installation, soil gas probes were allowed to equilibrate for approximately
24 hours prior to initiating purging and sampling activities.
On 27 and 28 May 2021, prior to purging and sampling, a shut-in test was completed to confirm
that the flow controller and Summa® canister fittings in the sampling train were air -tight. Prior to
sampling, a minimum 3-liters (L) of soil gas was purged and screened for the presence of volatile
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Ms. Kathleen Markey
11 August 2021
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Geosyntec°
c o i 1sultants
Geos7mtec Consul Eents of W, PC:.
organic compounds (VOCs) using a photoionization detector (PID); and pressure, methane,
oxygen, and carbon dioxide using a landfill multi -gas meter. Helium was used as a tracer gas to
complete leak testing during purging to confirm that each probe was securely sealed and to confirm
that ambient air was not present in the sampling train. At SGP-1 to SGP-6, although the helium
concentration in purged air exceeded the 5% minimum helium concentration, the shut-in test
confirmed that the sample train was not leaking. Elevated helium readings are attributed to false
positives as a result of methane interference. Methane concentrations were measured from SGP-1
to SGP-6 (ranging from 7.9% by volume [% vol] to 70.9% vol), which was suspected contributing
to the high readings on helium detector. Relative lower methane concentrations were measured
from SGP-7 and SGP-8 (2.5% vol and 2.0% vol respectively).
After purging, eight soil gas samples and one duplicate sample were collected from each location
in pre -evacuated, batch certified 1-L Summa® canisters equipped with 200 milliliter per minute
(ml/min) flow controllers (i.e., 5 minute). After sample collection, the canisters were shipped
overnight via FedEx under standard chain -of -custody protocol to Eurofins Air Toxic in Folsom,
California (Eurofins) for VOC analysis by United States Environmental Protection Agency
(USEPA) Method TO-15 and determination of carbon dioxide, methane, and oxygen by Modified
ASTM D-1946. Following sampling, soil gas probes were left in place for future screening
purposes. Soil gas sampling field forms are provided in Attachment A.
3. TEST PITTING AND SOIL SAMPLING
On 8 June 2021, Geosyntec worked with Site General Contractor (GC) Clancy and Theys
Construction Company to advance five test pits at the 41 Harnett Street parcel via excavator to
evaluate for potential methane sources in the areas where soil gas screening indicated elevated
methane concentrations. Test pit locations are shown in Figure 2. Test pit 1, 3 and 5 were located
near SGP-3. Test pit 2 was approximately 5 feet north of SGP-1 and test pit 4 was approximately
10 feet north of SGP-2. In general, the test pits were advanced to 12-13 ft bgs. An approximately
10-foot layer of organic matter including wooden debris, roots, and cloths mixed with bricks and
rocks was identified at the three test pits near SGP-3, where the highest methane concentration
(70.9% vol) was observed. Test pit 2 and 4 were similar to the other three test pits, but with less
organic debris. An odor and apparent petroleum staining were noticed at test pit 1, 3, 4, and 5.
A multi -gas detector for oxygen, hydrogen sulfide, and carbon monoxide was used to screen each
test pit. Ambient air and VOCs were measured with a PID at each location. Two manholes
connected to the sewer pipes underneath the Site were also screened for methane; however, no
methane was detected from the manhole locations.
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11 August 2021
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Geosyntec°
c o i 1sultants
Geos7mtec Consul Eants of W, PC:.
Two soil samples were collected from test pit 3 and 4 (one grab and one composite sample per test
pit) prior to placing excavated soil back into the hole. The soil samples were stored in a cooler
with ice and released under chain -of -custody protocol to Test America Eurofins Laboratory in
Savannah, Georgia. The grab samples were submitted for VOC analysis by USEPA Method
8260D. The composite samples were submitted for SVOC analysis by USEPA Method 8270E,
Resource Conservation and Recovery Act (RCRA) metals by USEPA Methods 6020B/7471B,
hexavalent chromium by USEPA Method 7199, and Diesel Range Organics (DRO) and Gasoline
Range Organics (GRO) by USEPA Method 8015D.
Following test pitting activities, excavated soil was placed back into the hole from where it was
excavated and field screening for methane was conducted a SG-2 and SG-3. No positive methane
readings or pressure were observed in the re -screening.
4. SOIL GAS AND SOIL ANALYTICAL RESULTS
This section summarizes the results of the field screening and laboratory analytical results for soil
gas and soil samples. Analytical results of the soil gas samples are summarized in Table 1 and
analytical results of soil samples are summarized in Table 2. Laboratory analytical reports are
provided in Attachment B and Attachment C. Soil gas analytical results were compared to the
NCDEQ Soil Gas Screening Levels (SGSLs) for Residential and Non -Residential settings. Soil
analytical results were compared to NCDEQ PSRGs for Residential and Commercial/Industrial,
settings.
4.1 Soil Gas Sampling Results
Soil gas field screening results are presented in Attachment A and summarized below:
• Total VOCs
o VOCs were detected by PID at SGP-2 and SGP-3. The highest detection was from
SGP-2 with 1.1 parts per million (ppm) and the lowest detection was from SGP-3
with 0.2 ppm.
• Fixed Gases
o Methane was detected at each location with a broad range of concentrations, with
the highest detection from SGP-3 (70.9% vol) and lowest detection from SGP-8
(1.7% vol).
o Carbon dioxide was detected at each location with the highest concentration from
SGP-6 (18.0% vol) and lowest concentration from SGP-8 (3.4% vol).
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Ms. Kathleen Markey
11 August 2021
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Geosyntec°
c o i 1sultants
Geosymtee Consul Eants of NC:, PC.
o Oxygen was detected from each location with low level concentrations compared
to ambient air condition. The highest detection was from SGP-1 (4.3% vol) and the
lowest detection was from SGP-6 (1.2% vol).
o Differential pressure (measured in inches of water) was measured in SGP-1 through
SGP-6 on 27 and 28 May 2021. Measurements ranged from 0.012 to 0.332 inches
of water. The highest pressure recorded was observed at SGP-3 (0.288 and 0.332
inches of water).
Soil gas laboratory analytical results were compared to NCDEQ residential and non-residential
SGSLs and are presented in Table 1 and summarized below:
• VOCs
o Various VOCs were detected from the samples. 1,2,4-trimethylbenzene, 1,3,5-
trimethylbenzene, 1,4-dichlorobenzene, benzene, ethyl benzene, trichloroethene
(TCE), and vinyl chloride were detected above the residential SGSLs from one or
more samples. However, no detection was above the non-residential SGSLs.
• Fixed Gases
o The laboratory analytical results are generally consistent with the field screening
results. The highest methane detection was from SGP-3 (64% vol) and lowest
detection was from SGP-8 (2.1% vol).
o Highest carbon dioxide concentration was from SGP-6 (18% vol) and lowest
concentration from SGP-7 (6.1% vol).
o Highest oxygen detection was from SGP-3 (3.0% vol) and lowest detection from
SGP-6 (0.57% vol).
Given the detections of multiple VOC compounds, the laboratory reporting limits (RLs) were
elevated in several samples, in a few cases above the applicable residential SGSLs. The NCDEQ
Risk Calculator (June 2021) was used as a screening tool to conservatively evaluate potential VI
risk associated with VOCs in the soil gas (methane is not evaluated using the Risk Calculator) to
residents and non-residential workers assuming: (1) current site conditions, and (2) that the
compounds in soil gas beneath the Site migrate into indoor air. Although we expect that final site
conditions will present a lower risk based on the expected removal of potential source material,
we performed the calculations described below based on current, pre -soil excavation conditions.
During the initial vapor intrusion risk screening (referred to as Tier 1), the elevated RLs were
incorporated into the risk screening following the NCDEQ Risk -Based Guidance and User's Guide
GN7035/CAR210129 - 202108 Kettler Soil and Soil Gas Sampling Report

Ms. Kathleen Markey
11 August 2021
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Geosyntec°
c o i 1sultants
GeosVffiec Consul Eants of NC:, PC.
(NCDEQ, February 2021). Due the high RLs from laboratory dilution, an additional vapor
intrusion risk screening (Tier 2) was conducted. Both Tier 1 and Tier 2 screening are included in
Attachment D respectively. Under the Tier 1 screening, the analytical results input into the
NCDEQ Risk Calculator include the maximum concentration of each detected compound, and the
maximum RL for compounds that were not detected but whose RL(s) were greater than their
respective residential SGSL, consistent with the NCDEQ Risk -Based Guidance (NCDEQ,
February 2021). The results of the Tier 1 screening indicate a potentially unacceptable risk/hazard
for both resident and non-residential worker. The results of the Tier 1 risk screening are driven
primarily by numerous elevated RLs for constituents that were not detected in soil or groundwater
at the Site. As such, many of the constituents with elevated RLs are not considered to be
Constituents of Potential Concern (COPCs) associated with historical activities at the Site.
Based on this information, a Tier 2 risk screening refinement was performed by removing from
consideration the compounds that are not COPCs and were not detected during the most recent
soil and groundwater sampling event but drive the Tier 1 risk screening results based on elevated
RLs. The results of the Tier 2 risk screening evaluation indicate no unacceptable risk/hazard for
non-residential worker but do still indicate an unacceptable residential risk/hazard based on a
hazard index (HI) slightly above 1. Attachment D presents the Tier 2 risk screening results as
determined by the Risk Calculator.
4.2 Soil Sampling Results
Soil generally consists of silty sand for the shallow layer (less than 3 ft bgs) and possible organic
materials (wooden debris, cloth) with dark clay from approximately 3 ft bgs to 12 ft bgs.
Groundwater table is generally encountered at 13 ft bgs. Based on visual observations, black color
stains and strong odor were noticed at four of the five pits. No methane readings were recorded
from the five test pits.
Soil analytical results are summarized below, including a comparison to NCDEQ PSRGs for
residential and commercial/industrial settings.
• VOCs
o Several compounds were detected from both samples. However, no compounds
exceeded the most restrictive PSRG screening levels.
GN7035/CAR210129 - 202108 Kettler Soil and Soil Gas Sampling Report

Ms. Kathleen Markey
11 August 2021
Page 7
• SVOCS
Geosyntec°
c o i 1sultants
Geosymtec Conguliants of NC, PC.
o Various SVOCs were detected from the samples. Benzo[a]anthracene,
benzo[a]pyrene, benzo[a]fluoranthene, and dibenz(a,h)anthracene were detected
above the corresponding residential PSRGs.
• Metals
o Arsenic, barium, cadmium, chromium, lead, selenium, silver, mercury, and
hexavalent chromium were detected from both samples. Arsenic was detected
above the corresponding commercial/industrial PRSG and hexavalent chromium
was detected above the corresponding residential PSRG.
Given the detections of multiple compounds, the laboratory RLs were elevated in several samples,
in a few cases above the applicable PSRGs. The NCDEQ Risk Calculator (June 2021) was used
as a screening tool to conservatively evaluate potential risk to residents, non-residential workers,
construction workers, and recreptors/trespassers assuming direct contact with the soil on Site and
current site conditions (pre -soil excavation). The elevated RLs were incorporated into the risk
screening following the NCDEQ Risk -Based Guidance and User's Guide (NCDEQ, February
2021). A Tier 1 and Tier 2 risk screening evaluation was conducted for soil, similar to the approach
used for soil gas.
The results of the soil risk screening evaluation are provided in Attachment E. The analytical
results input into the NCDEQ Risk Calculator include the maximum concentration of each detected
compound, and the maximum MDL for compounds that were not detected in the samples. There
were several compounds, 1,2-dibromo-3-chloropropane in particular, that were not detected but
have MDLs greater than the respective commercial/industrial PSRGs. No detections of 1,2-
dibromo-3-chloropropane were reported in either of the two samples and the RL for Test -Pit 3 was
two orders of magnitude lower than the RL for Test -Pit 4. As shown in the Tier 1 risk screening
evaluation in Attachment E, the risk for soil is being driven by 1,2-dibromo-3-chloropropane,
which is not considered a PCOC for the Site.
Following removal of this constituent, both risk and hazard levels are calculated to be well within
acceptable levels for other receptors. Risk estimates would likely be considerably lower if Site -
specific considerations had been accounted for and if the maximum MDL for constituents that
were not detected (and are not considered Site COPCs) were not incorporated in the risk screening.
GN7035/CAR210129 - 202108 Kettler Soil and Soil Gas Sampling Report

Ms. Kathleen Markey Ge ❑ sy te&
11 August 2021
Page 8 consultants
Geosymtec Congullants of NC, PC.
5. DISCUSSION AND CONCLUSIONS
Eight soil gas samples were collected for laboratory analysis across the Site. The results indicated
both elevated concentrations of VOCs and methane. The source of VOCs is unknown. The source
of methane appears to be localized buried organic debris in the eastern portion of the Site.
Following removal and replacement of debris in several areas during test pitting activities, re-
screening soil gas probes did not identify positive concentrations of methane or pressure. Removal
and off -site disposal of debris and organic material is planned to be completed during Site grading
activities. A work plan to perform additional methane screening under final representative site
conditions, which we expect to largely remove the source of methane, will be developed and
submitted to NCDEQ for approval prior to resampling. A vapor intrusion mitigation system
(VIMS) is planned to address both VOCs and methane. A design plan will be submitted to NCDEQ
for approval prior to installation.
Soil samples collected from the test pits revealed low-level detections of VOCs, SVOCs, and
metals and elevated concentrations of TPH-DRO, indicating apparent diesel -related petroleum
impacts. Initial (Tier 1) screening assessment results indicated unacceptable carcinogenic risk for
residential use based on one elevated reporting limit for 1,2-dibromo-3-chloropropane (0.49
mg/Kg) in sample Test -Pit 4. No detections of 1,2-dibromo-3-chloropropane were reported for
either sample and the reporting limit for 1,2-dibromo-3-chloropropane in sample Test Pit 3 is two
orders of magnitude lower; therefore, the elevated reporting limit in Test -Pit 4 is likely not
representative of Site conditions and when removed from the NCDEQ Risk Calculator in the Tier
2 evaluation, no unacceptable risk/hazard for both resident and non-residential worker is present,
which is consistent with the initial 2020 Groundwater and Soil Assessment (Geosyntec, 2020).
Additionally, soil located near the stockpile where the test pitting was performed will either be
removed during grading activities or will be capped under impervious surfaces. Geosyntec
understands that final grade sampling may be performed following grading activities to evaluate
risk to occupants in vegetated areas.
GN7035/CAR210129 - 202108 Kettler Soil and Soil Gas Sampling Report

Ms. Kathleen Markey
11 August 2021
Page 9
Geosyntec°
c o i lsultants
Geosymtec Consul Eants of NC:, PC.
We appreciate your review of this report. Please do not hesitate to contact Kaitlyn Rhonehouse and
Brandon Peach at krhonehouse(&,geosyntec.com and bpeach(&,geosyntec.com, respectively, should
you have any questions.
Sincerely,
Brandon Peach, PG (Nc, sc)
Senior Staff Scientist
Kaitlyn Rhonehouse, PE (NC, VA, FL)
Principal
Attachments: Figure 1:
Soil Gas Sampling Locations
Figure 2:
Test Pits Testing and Site Features
Table 1:
Soil Gas Analytical Results
Table 2:
Soil Analytical Results
Attachment A:
Soil Gas Sampling Field Log
Attachment B:
Soil Gas Analytical Laboratory Report
Attachment C:
Soil Analytical Laboratory Report
Attachment D
Risk Calculator for Soil Gas
Attachment E Risk Calculator for Soil
Copy: Luke Davis, Graham Tyrrell, William Edwards — Kettler Enterprise, Inc.
Mary Katherine Stukes — Moore & VanAllen
GN7035/CAR210129 - 202108 Kettler Soil and Soil Gas Sampling Report

Ms. Kathleen Markey
11 August 2021
Page 10
Geosyntec °
consultants
Geusymtc('.Q)nsnitant4OfNC. I1 C.
1, Kaitlyn Rhonehouse, a Licensed Engineer for Geos ntec Consultants of NC PC do attest that the
information in this report is correct and accurate to the best of my knowledge.
Geos ntec Consultants of NC PC is licensed to practice engineering in North Carolina. The certification
number (Firm's License Number) is C-3500.
CR P?0
� r
SEAL
04354GIN
jRrHEO�,.,,��
Kaitlyn Rhonehouse, PE
Principal
North Carolina P.G. License No. 043548
Expiration Date: 31 December 2021
Geosyntec Consultants of NC, PC
201 N Front Street, Suite 501
Wilmington, NC 28401
Telephone: [phone]
GN7035/CAR210129 - 202108 Kehler soil and Soil Gas Sampling Report

FIGURES

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1 W,
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AS
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Legend
Notes:
Site Boundary 1. Service Layer Credits: Source: Esri, Soil Gas Sampling Locations
CMaxar, GeoEye, Earthstar Geographics, N
Residential Units CNES/Airbus IDS, USDA, USGS, 19 and 41 Harnett Street
Amenities ID, IGN, and the GIS User
C Community Wilmington, NC
nity
= Retail 2. Analytical samples were collected from
May 27 to May 28. Geosptec FigureC>
Q Elevator Shaft consultants
L7Approximate Extent of Stockpile �r amecC...]—iNC,P.C.
Soil Gas Sampling Locations o 80
O P � 9 Feet I GN7035 I June 2021
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Test, Pit,3
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Test Pit•2
A
^ i w7
P q
1
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Legend
Notes:
Sewer Manhole Locations 1. Service Layer Credits: Source: Esri, Soil Sampling Locations
QSite Boundary DigitalGlobe, GeoEye, Earthstar N
Geographics, CNES/Airbus IDS, USDA,
0 Residential Units USGS, AeroGRID, IGN, and the GIS User 19 and 41 Harnett Street
Test Pit Locations Community Wilmington, NC
2. Analytical samples were collected on C>
=Amenities June 8 2021. Geosptec Figure
0 Retail consultants
QElevator Shaft c•�•m. C...d.a..miNC,e.c. 2
I. jApproximate Extent of Stockpile 80 Feet I GN7035 I July 2021
N:\K\Kettler\GN7035 Kettler Harnett St\7.0 GIS\MXD\Figure_2_Soil_Sampling_Locations.mxd 7/27/2021 9:57:42 AM

TABLES

Table 1
Soil Gas Analytical Results
Almom Shipping II
19 and 41 Harnett Street, Wilmington, North Carolina
Geosymec Consultants of NC, PC
Analyte
Residential
SGSLs
NonResidental
SGSLs
Sample ID
SGP-1
SGP-2
SGP-3
DUP 1
(SGP-3)
SGP4
SGP-5
SGP-6
SGP-7
SGP-8
Sample Date
5/28/21
5/27/21
5/28/21
5/28/21
5/27/21
5127121
5127121
5127/21
5127121
Sample Depth
Rbs
5.5
6
6.5
6.5
8
9
7.5
5
5
Units
Volatile Organic Compounds (VOCs) by
EPA Method TO-15
L1,1-Trichloroethane
34,762
438,000
µg/m3
35 U
24 U
55 U
68 U
5.8 U
13 U
5.5 U
62 U
7.2 U
1,1,2,2-Tetrachloroethane
1.6
21
pg/m3
44 U
30 U
69 U
85 U
7.3 U
16 U
6.9 U
7.8 U
9 U
1,1,2-Tricldoroedure
1.4
18
pg/m'
35 U
24 U
55 U
68 U
5.8 U
13 U
5.5 U
6.2 U
7.2 U
Ll-Dichloroethane
58
767
pg/m3
26 U
18 U
41 U
50 U
4.3 U
9.7 U
4.1 U
4.6 U
5.3 U
1,1-Dichloroethene
1,390
17,520
pg/m'
26 U
17 U
40 U
49 U
4.2 U
9.5 U
4 U
4.5 U
5.2 U
L2,4-Trichlorobenzene
14
175
pg/m3
190 U
130 U
300 U
370 U
32 U
71 U
30 U
34 U
39 U
1,2,4-Trimedrylbenzene
417
5,256
pg/m'
22 J
16 J
440
430
5.8
46
4.7 J
2.8 J
9.4
1,2-Dibromoethane (EDB)
0.2
2.0
pg/m3
50 U
34 U
77 U
96 U
8.2 U
18 U
7.7 U
8.7 U
IOU
1,2-Dicldorobeazene
1,390
17,520
pg/m'
17 J
26 U
60 U
75 U
6.4 U
14 U
6 U
6.9 U
7.9 U
1,2-Dichloroethane
3.6
47
pg/m3
26 U
18 U
41 U
50 U
4.3 U
9.7 U
4.1 U
4.6 U
5.3 U
1,2-Dichloropropzne
25
331
pg/m'
30 U
20 U
46 U
58 U
4.9 U
l l U
4.6 U
5.2 U
6.1 U
L3,5-Trimeth Ibenzene
417
5,256
pg/m3
9.2 J
6.9 J
420
420
3.6 J
14
1.8 J
0.86 J
6.7
1,3-Butadiene
3.1
41
pg/m3
14 U
9.7 U
22 U
28 U
2.4 U
5.3 U
2.2 U
2.5 U
2.9 U
1,3-Dichlorobenzene
--
--
pg/m3
39 U
26 U
60 U
75 U
6.4 U
14 U
6 U
6.8 U
7.9 U
1,4-Dichlorobenzene
8.5
111
pg/m3
9.6 J
26 U
60 U
75 U
6.4 U
14 U
6 U
6.8 U
7.9 U
L4-Dioxane
19
245
pg/m3
93 U
63 U
140 U
180 U
2.1
34 U
2.3 J
16 U
4.6 J
2,2,4-Trlmethylpentane
--
--
µg/m3
330
570
52
52 J
980
160
8.5
10
1,100
2-Butanone (Methyl Ethyl Ketone)
34,762
438,000
pg/m3
45 J
7.8 J
120 U
150 U
13
37
58
23
32
2-Hexanone
209
2,628
pg/m'
100 U
72 U
160 U
200 U
17 U
39 U
16 U
18 U
22 U
2-Pro anol
1,390
17,520
pg/m3
17 J
26 J
33 J
30 J
19
34
16
26
20
3-Chloropeopene
7.0
88
pg/m'
81 U
55 U
120 U
160 U
13 U
30 U
12 U
14 U
16 U
4-Eth ltoluene
-
--
pg/m3
18 J
14 J
280
270
6.4
40
3.6 J
2.9 J
8.8
4-Methyl-2-pentenone
20,857
262,800
pg/m'
26 U
18 U
41 U
51 U
4.4 U
9.8 U
2.6 J
1.5 J
5.4 U
Acetone
215,524
2,715,600
pg/m3
250
70 J
260
280
50
140
80
120
100
Benzene
12
157
pg/m'
34
18
110
100
120
15
6.2
9
10
Bromodichloromethane
2.5
33
pg/m3
43 U
29 U
67 U
83 U
7.1 U
16 U
6.7 U
7.6 U
8.8 U
Bromoform
85
1,115
pg/m'
67 U
45 U
100 U
130 U
l l U
25 U
10 U
12 U
14 U
Bromomethane
35
438
pg/m3
250 U
170 U
160 U
190 U
41 U
93 U
39 U
44 U
51 U
Carbon Disulfide
4,867
61,320
pg/m'
111
91
37 J
46 J
6.8 J
33
1.11
1.3 J
9.7 J
Carbon Tetrachloride
16
204
pg/m3
40 U
28 U
63 U
78 U
6.7 U
15 U
6.3 U
7.1 U
8.3 U
Chlorobenzene
348
4,380
pg/m'
190
220
46 U
57 U
4.9 U
l l U
4.6 U
5.2 U
6 U
Chlomethane
69,524
876,000
pg/m3
68 U
46 U
110 U
130 U
l l U
25 U
l l U
12 U
14 U
Chloroform
4.1
53
pg/m'
31 U
21 U
49 U
61 U
5.2 U
12 U
4.9 U
5.5 U
6.4 U
Chloromethene
626
7,884
pg/m3
130 U
90 U
83 U
100 U
22 U
50 U
21 U
23 U
27 U
Cuum ne
2,781
35,040
pg/m3
32 U
22 U
300
280
20
Ili
4.9 U
2.5 J
24
C lohexane
41,714
525,600
pg/m3
270
360
120
120
370
54
1.2 J
6.2
62
Dibromochloromethane
-
--
pg/m'
55 U
37 U
86 U
H O U
9.1 U
20 U
8.6 U
9.7 U
l l U
Ethanol
-
--
pg/m3
47 J
180
79
110
650
41 J
34
82
33
Ethyl Benzene
37
491
pg/m3
111
8.7 J
300
280
46
53
7.9
4.8 J
15
Freon 11
-
--
pg/m3
36 U
25 U
56 U
70 U
6 U
13 U
5.6 U
6.4 U
7.4 U
Freon 113
34,762
438,000
pg/m3
49 U
34 U
77 U
95 U
8.2 U
18 U
7.7 U
8.7 U
10 U
Freon 114
-
--
pg/m3
45 U
31 U
70 U
87 U
7.4 U
17 U
7 U
7.9 U
9.2 U
Freon 12
695
8,760
pg/m3
32 U
22 U
50 U
62 U
5.3 U
12 U
5 U
6.8
4.8 J
H tone
2,781
35,040
pg/m3
38
57
960
920
140
78
8.1
16
17
Hexachlorobutadiene
4.3
56
pg/m3
280 U
190 U
430 U
530 U
45 U
100 U
43 U
48 U
56 U
Hexane
4,867
61,320
pg/m3
71
200
2,500
2,300
380
290
19
39
61
Methyl tert-butyl ether
360
4,717
pg/m3
93 U
2.9 J
36 U
45 U
15 U
35 U
14 U
16 U
19 U
Meth lease Chloride
3,380
52,560
pg/m3
220 U
150 U
140 U
170 U
37 U
83 U
1 J
2.1
1.6 J
Propylbenzene
6,952
87,600
pg/m3
32 U
9.2 J
46 J
47 J
3.4 J
Ili
1.11
5.6 U
2.6 J
Styrene
6,952
87,600
pg/m3
27 U
19 U
43 U
53 U
4.5 U
10 U
4.3 U
4.8 U
2.3 J
Tetrachloroethene
278
3,504
pg/m3
211
30 U
68 U
84 U
4.2 J
67
8.2
18
7.7 J
Tehahydrofirzan
13,905
175,200
pg/m3
19 U
13 U
30 U
37 U
3.1 U
7.1 U
3 U
3.3 U
3.9 U
Toluene
34,762
438,000
pg/m3
46
36
74
82
10
51
17
6.5
25
Trichlomethene
14
175
pg/m3
16 J
24 U
54 U
67 U
5.7 U
3.1 J
5.4 U
1.7 J
7.1 U
Vinyl Chloride
5.6
279
pg/m3
101
11 U
26 U
32 U
2.7 U
6.1 U
2.6 U
2.9 U
3.4 U
al ha-Chloromluene
1.9
25
pg/m3
33 U
23 U
52 U
64 U
5.5 U
12 U
5.2 U
5.9 U
6.8 U
cis-1,2-Dichloroethene
--
--
pg/m'
230
17 U
40 U
49 U
4.2 U
9.5 U
4 U
4.5 U
5.2 U
cis-1,3-Dichloro ro ease
--
--
pg/m3
29 U
20 U
46 U
56 U
4.8 U
l l U
4.6 U
5.2 U
6 U
m,p-Xylene
695
8,760
pg/m'
38
17 J
240
210
25
69
12
5.2
14
o-Xylene
695
8,760
pg/m3
22 J
13 J
140
130
8.2
28
4.8
2.9 J
8
trans-1,2-Dichloroethene
278
3,504
pg/m3
26 U
17 U
40 U
49 U
4.2 U
9.5 U
4 U
4.5 U
5.2 U
trans- l,3-Dichloropropene
-
I --
I µg/ms
1 29 U
20 U
46 U
56 U
4.8 U
l l U
4.6 U
5.2 Ut�"
Standard Method of Analysis far Reformed
Carbon Dioxide
Gas by Gas Chromatography
by Method
ASTMD-1946
%
12
13
16
15
18
17
18
6.1
Methane
%
62
27
64
58
26
27
8.6
2.3
oxygen
%
0.70
0.98
3.0
4.2
0.83
0.71
0.57
1.6
Notes:
1. Data are screened against the North Carolina Department of Environmental Quality (NCDEQ) Sub-slaband Exterior Soil Gas Screening Levels (SGSLs), amended May 2020.
2. Analytical samples were collected from May 27 to May 28.
3. Each conetimem analyzed is included in this table.
4. "U" indicates not detected above reporting limit (RL).
5. "-" indicates SGSL not established.
6. R bgs indicates feet below ground surface.
7. µg/m' indicates microgram per cubic meter.
8. If applicable, concentrations exceeding SGSLs are highlighted as shown:
Residential SGSL Non-Resrdendal L
9. Chemical concentrations not detected above the labomtory RL, but where the RL exceeds a residential SGSL, are italicized
10. Chemical concentrations detected are bolded.
Page 1 of 1

Table 2 Geosyntec Consultants of NC, PC
Soil Analytical Results
Almont Shipping II
19 and 41 Harnett Street, Wilmington, North Carolina
Analyte
EPA Method 8260D - Volatile Organic
NCDEQ
Residential
PSRGs
Compounds
NCDEQ
Commercial/
Industrial PSRG
Sample ID
Test -Pit 3
Test -Pit 4
Sam le Date
06/08/21
06/08/21
Sample Depth
0-13 ft BGS
0-13 It BGS
Unit
1,1,2,2-Tetrachloroethane
0.6
2.8
mg/Kg
0.0016 U
0.18 U
1,1,2-Trichloroethane
0.3
1.3
m
0.0013 U
0.14 U
1, 1 -Dichloroethane
3.8
17
mg/Kg
0.0011 U
0.12 U
1,2-Dibromo-3-Chloropropane
0.0056
0.068
m
0.0044 U
0.49 U
1,2-Dibromoethane
0.038
0.17
mg/Kg
0.0015 U
0.17 U
1,2-Dichloroethane
0.49
2.2
m
0.0011 U
0.12 U
1,2-Dichloropropane
2.6
12
mg/Kg
0.00085 U
0.095 U
2-Butanone (MEK)
5,500
40,000
m
0.036
0.26 U
2-Hexanone
42
280
mg/Kg
0.0033 U
0.36 U
4-Methyl-2-pentanone (MIBK)
7,000
30,000
m
0.0042 U
0.46 U
Acetone
12,000
140,000
mg/Kg
0.26
7.2
Benzene
1.2
5.4
m
0.00072 U
0.081 U
Bromoform
20
90
mg/Kg
0.0015 U
0.17 U
Bromomethane
1.4
6.4
m
0.0015 U
0.17 U
Carbon disulfide
160
740
mg/Kg
0.0013 J
0.12 U
Carbon tetrachloride
0.69
3.0
m
0.00082 U
0.092 U
Chlorodibromomethane
8.3
39
mg/Kg
0.0017 U
0.19 U
Chloromethane
23
99
m
0.00099 U,*+
0.11 U,*+
Dichlorobromomethane
0.31
1.4
mg/Kg
0.00096 U
0.11 U
Isopropylbenzene
410
2,100
m
0.0019 J
0.56
Methyl acetate
16,000
230,000
mg/Kg
0.005 U
1.8 J
Methyl tert-butyl ether
49
220
m
0.00099 U
0.11 U
Methylene Chloride
58
650
mg/Kg
0.00097 U
0.11 U
Tetrachloroethene
17
82
m
0.0019 U
0.21 U
Toluene
990
9,700
mg/Kg
0.00083 U
0.17 J
Trichloroethene
0.87
4.0
m
0.0013 U
0.14 U
Vinyl chloride
Organic
0.061
Compounds
1.7
mg/Kg
0.0015 U
0.17 U
1,1'-Biphenyl
10
43
mg/Kg
0.058 J
0.057 J
2,4-Dichlorophenol
38
490
m
0.043 U
0.05 U
2,4-Dinitrophenol
25
330
mg/Kg
0.78 U,F1
0.91 U
2,4-Dinitrotoluene
1.7
7.4
m
0.045 U
0.052 U
2,6-Dinitrotoluene
0.36
1.5
mg/Kg
0.048 U
0.055 U
2-Chlorophenol
78
1,200
m
0.032 U
0.037 U
2-Methylnaphthalene
48
600
rn"g
0.16
0.55
3,3'-Dichlorobenzidine
1.2
5.1
m
0.1 U,F1
0.12 U
4,6-Dinitro-2-methylphenol
1.0
13
mg/Kg
0.1 U,F1
0.12 U
4-Chloroaniline
2.7
11
m
0.031 U,F2,F1
0.036 U
4-Nitroaniline
27
110
mg/Kg
0.05 U,F1
0.058 U
Acenaphthene
720
9,000
m
0.97 F1
0.29
Acenaphthylene
mg/Kg
0.053
0.14
Anthracene
3,600
45,000
m
0.63 F1
0.64
Atrazine
2.4
10
mg/Kg
0.046 U
0.053 U
Benzaldehyde
170
820
m
0.062 J
0.092 J
Benzo[a]anthracene
1.1
21
mg/Kg
0.6 F1
1.6
Benzo[a]pyrene
0.11
2.1
m
0.51
1.9
Benzo[b]fluoranthene
1.1
21
mg/Kg
0.75 F1
2.7
Benzo[g,h,i]perylene
m
0.13 Fl.
0.56
Benzo[k]fluoranthene
11
210
mWKg
0.29
1.1
Page 1 of 2

Table 2 Geosyntec Consultants of NC, PC
Soil Analytical Results
Almont Shipping II
19 and 41 Harnett Street, Wilmington, North Carolina
Analyte
NCDEQ
Residential
PSRGs
NCDEQ
Commercial/
Industrial PSRG
Sample ID
Test -Pit 3
Test -Pit 4
Sam le Date
06/08/21
06/08/21
Sam le Depth
0-13 It BGS
0-13 It BGS
Unit
Bis(2-chloroethyl)ether
0.24
1.1
mg/Kg
0.039 U
0.045 U
Carbazole
mg/Kg
0.41 F1
0.17 J
Chrysene
110
2,100
m
0.65 F1
1.8
Dibenz(a,h)anthracene
0.11
2.1
mg/Kg
0.05
0.19
Dibenzofaran
16
230
m
0.59 F1
0.26 J
Fluoranthene
480
6,000
mg/Kg
2.6 F1
3.9
Fluorene
480
6,000
m
0.76
0.56
Hexachlorobenzene
0.22
0.99
mg/Kg
0.046 U
0.053 U
Hexachlorobutadiene
1.3
5.6
m
0.041 U
0.047 U
Hexachloroethane
1.9
8.5
mg/Kg
0.035 U,F2,F1
0.04 U
Indeno[1,2,3-cd]pyrene
1.1
21
m
0.11 F2,F1
0.4
Naphthalene
2.1
8.8
mg/Kg
0.45
0.4
N-Nitrosodi-n-propylamine
0.078
0.33
m
0.045 U
0.052 U
Pentachlorophenol
1.0
4.0
mg/Kg
0.4 U
0.47 U
Phenanthrene
m
1.2 F1
2.2
Pyrene
EPA Method. ;l I I
360
I'/
4,500
mg/Kg
1.7 Fl
2.9
Diesel Range Organics [C 10-C28]
EPA Method.- 8015D - Gasoline Range
--
Organics (GRO)
--
I mg/Kg
420 B
840 B
Gasoline Range Organics [C6 -CIO]
EP.4 Method. l l: - Metals
mg/Kg
2.8 U
69
Arsenic
0.68
3.0
mg/Kgjad
Barium
3,100
47,000
m
58
45
Cadmium
14
200
mg/Kg
0.23
0.39
Chromium
23,000
350,000
m
34 FI
23
Lead
mg/Kg
70
120
Selenium
78
1,200
m
0.77
0.61 J
Silver
78
11200
mg/Kg
0.16
0.0911
Chromium, hexavalent
0.31
6.5
mg/Kg
0.72
1
Mercury
2.3
AP
mg/Kg
0.21 F1
0.1
Notes:
1. Data are screened against the North Carolina Department of Environmental Quality (NCDEQ) Preliminary Soil
Remediation Goals (PSRGs) amended in May 2021.
2. Analytical samples were collected on June 8 2021.
3. Only the constituent that is detected or has RL exceeds any of the three PSRGs is included in this table.
4. "U" indicates not detected above laboratory method detection limit (MDL).
5. "*+" indicates laboratory control sample (LCS) and/or LCS Duplicate is outside acceptance limits, high biased.
6. "J" indicates result is less than the report limit (RL) but greater than or equal to the MDL and the concentration is an approximate
7. "F1" indicates MS and/or MSD recovery exceeds control limits.
8. 72" indicates MS/MSD relative percent difference exceeds control limits.
9. "- " indicates PSRG not established.
10. mg/Kg indicates milligram per kilogram.
11. ft BGS indicates feet below ground surface.
12. If applicable, concentrations exceeding SGSLs are highlighted as shown:
Residential PSRG On -Residential PSRG
13. Chemicals concentrations not detected above the laboratory MDL, but where the MDL exceeds the lowest PSRGs, are italicized.
14. Chemical concentrations detected are bolded.
Page 2 of 2

ATTACHMENT A
Soil Gas Sampling Field Log

0
00
SUB -SLAB & SOIL VAPOR PROBE MEASUREMENTS
Geosyntec
consultants
Kz/
1. client Site Code: P ?IY Dole; Pwbu No.: ��al� ❑ Sub -slab probe f all vapor probe
C7
Number: ry J
MlnRae 2000 or RKI GX-6000/GX-2012 Serlal No.: Q I �/ Z Y2- Lamp:
11.7 eV
IV.Site Location: Y'1 C
Site Location:
C
Land(ach GEM 2000 or 5000 Landfill Gas Meter Serial No.: �t �`t7 S cam_
wealher: f--,", V '
MDG 2002 Flellum detector Serial No.: 17 "ZZ
Field Personnel: ✓1%A �%
9
l
Leak Detection Method: Helium ❑ Water Qa
or ❑ Other
Recorded By: r
Approximate Building Square Footage: �
2. Surloce Type: ❑ Asphalt ❑ Concrete'y Grass ❑ Other
3. Probe construction details:
Surface Thickness: inche`s'c rlljmelers known
Probe type (Le. VaporPin®, oinless Sleet Impl t. ihfeoded Brass Sub -slab Probe, etc.):
Slab Condition: ne f�''}}
Tubing Type (i.e. Tg n Nylall etherelherketane (PEE j:
Vapor Bonier Present?: ❑Yes No El Unknown
Probe diameter: l__ _Inch Tubing diameter; inch Borehole diameter,.Z
inch
5. Initial Probe Pressure (prior to purging); ❑ Positive ❑ Negalive/Vocuum
Drilling Method (i.e. recI ush, Hammer Drill, Hand Auger, etc.):
Ir
Gauge Reading Q r� Units:
Borehole Depth (It bgsl: T7- S Sand Pack Interval (II bgs):
b- Field lubing blank leading (ppm l: PID Reading ppm
Date Installed: f Z Time Installed: • 12,0 c
7. Shut in test prior to purging completed? Yes ❑ No !„
4. 1 Casing Volume: ❑ Sub -slab probe <0.1 L Soil vapor probe 0- 2 L (Calculate volume lox sal vapor proa.el
S. Purging **If methane is detected during purging at greater than 0.1% (2%of LEt), notify PM Helium
Date
Start Time
End Time
Elapsed
Time
Bag
Volume
Purge
Rate
Cumulative
Volume
CH4 ••
COz
Or
HTS
Shroud (%(
Sample 1ppm,-
VOCsbyM
it?am• I
(min.l
IL)
(LPM)
(L)
(%v)
(%v)
(PPm)
(circa onel
Mtn
Max
5 zl
i5
of
D-s-
-J
aZ.a
f7,o
/0ZJ
1Dz
2
►
0.
�.0
O,
2:O
-�
1
�g.3
S`
d• D
44t Z
Ambient Atmosphere In Vicinity of Sample Location: Time
9, Calculate 5% of Ina minimum helium concentration In the shroud: how ppm
Mole: 1% helium = I0,000 ppm,
10. Shut In lest prior to sample collection completed? Yes ❑ No
Confirm that hellum in field screened samples is less Phan 5% 1 the minimum helium concentration
In the shroud prior to sampling: ❑ Confirmed � Od (X m�({ 4-k
.� )* C( 4 t'Alc
Note: If not confirmed, troubleshoot leak prior to sample colleetion and d(Icumenl In commenit below
11. Sample Collection
Date
tine
Sample ID
Summu Conblor ID Flow Conlioller rr
Vuc uum Gauge a
dl .li YCSUIRIr
V�QlYui u�m
lin. ►Ig)
IuL hw
2,10
to Le
Analysis Requested on COC:
Continents:

SUB -SLAB & SOIL VAPOR PROBE MEASUREMENTS i
D
I • Cilent Site Code: IV J
/1 DOIo:
PraJecl/Phase Number_
Slie Location: W 1
Weather. q C
Feld Personnel: Z G
Recorded By:y�wCvt ~
2. Surface type: ❑Asphalt ❑ Conttele ❑Gross r-
Qf7lher�I r� J. P
Surface Thickness: — � inches/cenlimelot,
❑ UhklloWn Pill
Slab Condition:
iu
Vol barrier Pressi l2: ❑ Yes No
❑ Unknown Pr
5. Initial Probe Pressure (prior to purgingl: ❑ Positive ❑ NegOlfve/Vacuum
Drfl
Gauge Reading C e Units:
Dot
6. field tubing blank reading Ippm,.J: t'ID Reading i? • e7
g Ppns, Da
%. Sn�l rn lest prior to purging compleledB Yes ❑ No
iMw -
8. Purging ^Ir rn� rndne is aelecled 0uril A�91n9 of Orearer than 0. 196 ,. ^ , l LFLJ, noffly P
Hopi bag Purgo
hate SIarl Time Ltd Time Time Volume Role
Irrill IU iLPMI
Z Z i l4' ,Z 1 nd�
Pro
Dal
J
0
Ambient Almosphi la In Vicinity of Somplo 1 ucalion: TJ
reOS'/C?fec
_j Cl'!I IS'tillhi f i l ti
t ` Z
I'ioba No.. �C+.
L, `Sill, rl•Ib prabo SUU vapor proli
M111l71D0111WG%60 j(_,)•J01JSi lftu R/2L�1
nr
l andluch (AM J1K10 n1 ."AM) I ill Gut Molm Srnkn rHl � sra�stf c f-
MI)G M2 I lulluln daloi lol Sunni No.. I
�
Innk Uolocllen Mofhud: C/JI Will ❑ wrilnf Uum r)Itlor _
AIsproxlnlalo BuAding Squalu IooluUa: __ - I/,1�
fuha consiri lon dufalls;
boVapalPlr�, alai oel Im ant, If II I dI d Blass Sub slab Probe. ell: I
bIng Type( I.e. Tall` . N of w or poyulhorelhalkutono IP �1:11: _�_
dlamolor, inch lubing dlamoler:`
IrlCh IsoronrJrp rJorr�Mr
Iing Molhod ( I,e, ecI h, Hamrnor Dr111. Hand Auger, ell
Of Deplh (11 cb�gs(: t J Sand Pack Interval Ili b7g+l:_.S
Inslolled: > /Z V 2 Time Inslaill 13 7S
4. 1 Casing Volume: ❑ Sub -slab probe <0.1 L SoN va or lobe
P P Q ► i;CaKutlye nois,n,e rcr i.,,l •s.LY.r t..c.r:
M
"CALM
Cumi lallvo
Volume CH. - CC), Oz H S !iraoud lid r' •- l Cv ^[
fLl {xv) 1%vl ILv) (hw») titeAl
2 1 10 0 �7.� 11• �.,:, Di t
;b. 3 r 1, s z i �. 3 �. <•
9. Calculale SR. of 111a minimum hsllwn eoneentill ire Bie shroud: pfinl•
NOW M I Iellum = 10'l ppm,
Confirm fhol nellum In field screall samples is 17 Than S% of Ilia minimum htllunl cunconllation
In Itle'I'voud prior to sampling: ElConiumod ��Jall Sb+S pr'JTJ 04-J- *' "-: l ->'Y 10" c
Note: If nor confilmed, Iroublesllool lea{. prior to sanlplr cullerrolr Ord docurnenl in conwlai !_ 1 .-1 .h
10 %1wl in Ids prig to sumPb cos,, rari .,r, q _."3 r , _, ♦.
---
'
boleAk.qu.0aa
SVII IpIC III
sulilln.l l 'lllljrc111' Ill l'Milll)llpl { Y•k �..�Y 1.\1.�jo i•
�n..0 .-.11 ��.--
h - �>
—
S 11 z►oS
z � oSc
3c . c�
2-1
Anal
v�

� s
-r
SUB -SLAB & SOIL VAPOR PROBE MEASUREMENTS Geosyntecc"
y consultants
1. Client Site Code: dX Date: ^I 1L ❑ Sub-sfob probe Sall va probe
Probe No.:
Protect/Phase Number: !/� __ V3 MlnRoe 2000 or RKI GX-6000/GX-2012 Serial No.: 4 �_ Lamp: C V' 11.7 eV
Site Location: lr �, 'OA►'1 r L Landlech GEM 2000 or 5000 Landfill Gas Meter Serloi No.: 1�7i �t%171�L;
Weather: MDG2002Helium detector Serial No.:
Field Personnel: L Leak Detection Method: L&.1lum ❑ Woler Dam /❑i Other
Recorded By. Approximate Building Square Footage: h! 4/ /
2. Surface Type: ❑ Asphalt ❑ Concrete I Grass ❑ Other
Surface Thickness: inches/centimeters Unknown
Slab Condition
Vapor border Present?: El Yes No El Unknown
5- Initial Probe Pressure (prior to purging): ❑ Positive ❑ Negalive/Vacuum
Ir
Gauge Reading Units:__
3. Probe construction details:
Tubing Type t Le. Te
Probe diameter: If,
ens Sleet Im onl. Threaded Brass Sub -slab Probe• etc.):
or polyelherelherketane tPf)):
Inch Tubing diameteCSlnch Boreholediameler. ? Inch
Drilling Method I i.e. Ire Push. Hammer Drill, Hand Auger, etc.):
r
Borehole Depth tft bgs): , S Sand Pack Inlerval (it bgs):_6,, (
S. Field tubing plonk (coding Ippmv): PID Reading U. U ppm
Date Installed: 5L2 f LI
Time Installed: T
7. Snul in test pr or to purging completed
L7-4.
Yes
❑ No It
1 Casing Volume: ❑ Sub -slab probe <0.1 I ❑ Soil vapor probe L (Calculate vokrme rot sot vapor propel
8. Purging ••rt mefhone is defected during purging of greater than 0.1%j2%of LEL), notify PM
Helium
Date Slan Time End Time
Elapsed
Time
Bag
Volume
Purge Cumulative
CH, •• CO2
Rate Volume
O�
H?S Shroud (%t
Sample (ppm,-1,0/�
iJ . c
(min.)
(L)
(LPM) (L) 1%v) (%V)
(%v)
(ppm) Min Max
f6rcle onel
IIf
1
/it
2
0
rr
Ambient Atmosphere In Vicinity of Sample Location: Time
9. Calculate 5% of the minimum helium concentration in the shroud:Iq ow ppm
Note: I% helium = 10.000 ppm„ 10. Shut In lest prior to samplu cvllucli 11 compieled@ Yes ❑ No
Confirm that helium in field screened samples Is less than 5% of the minimum helium concentration
In the shroud prior to sampling: ❑ Contlrmed X tiut COW' %p[-� a s � plus 5 "it. w,- NHS
Note: If not confirmed, troubleshoot teak prior to sample collection and a'h ueM In commbe w 1.
11. Sample Collection
Dale lime Sample ID Summo Canisle( ID I low Colthallel n Vacuum Gauge 0 tnitlal Vocuwu
i 7_() i z 1- S
Analysis Requ&5letionCOC"Ill

SUB -SLAB & SOIL VAPOR PROBE MEASUREMENTS
I- C6enl Site Code:
Projecf/Phase Number.
Site Location: �11T s Vwr 8s/I ?L�C
Weather.
Fleld Personnel:
Recorded By: h
Geosynte&
consultants
Probe No.: ElSub-stabprobe IlSolivapor probe
MinRae 2000 or RKI GX-6000/GX-2012 Serial No.: i Lamp: -&/ 11.7 eV
Landtech GEM 2000 or 5000 Landfill Gas Meter Serial No.:
MDG 2002 Helium detector Serial No.:
Leak Detection Method: N Helium ❑ Water Dam ,❑ Other
Approximale Building Square Footage:
�. surrace type: I I Asphalt U Concrete Grass ❑Other 3. Probe construction details:
Surface Thickness: Inches/centimeters �c Unknown
Slab Condition:
Probe type (I.e. VaporPlne e m nL Threaded Brass Sub -slab Probe, e1c.J:
Tubing Type ( Le. Teflon,, or
Vapor BOnjer Present?: ❑ yes No ❑ Unknown
polyetheretherketone (PEEKJJ:
Probe diameter: t inch i 1
Tubin diameter.
9 — !T inch Borehole diameter: Z Inch
5. Initial Probe Pressure��Iprior to purgingj: ❑ Positive ❑ Negative/Vacuum
Drilling Method ( i.e.
Gouge Reading V Units: s f
t us Hammer Drill, Hand Auger, eic.j:
Borehole Depth (It bgs):_ Sand Pack interval (ft bgs): r r
6. Field tubing blank reading (ppm,,): PID Reading Ca , C.] ppm,
Date Installed: !� 1� 12M IZ d 5
me Installed:
7. Shut in test prior to purging completed? Ups ❑ No
4. 1 Casing Volume: El Sub -slab probe e0.1 L Soil vapor probeL (Calculate volume for sdl vapor
probe)
8. Purging '9f methane is deter during purging at greater than 0.) % (2% of LEL), notify PM
Elapsed Wag Purge
Dole
Dale Start Time End lime Time Volume Rate
Helium
Cumulative —
by PID
Volume CH' co, 02 5 Shroud (%) Sample (ppm, %
(min.) (L) (LPM)
Ippmvl
(L) (%vJ (%v) (%vJ (PPm) Mln Max (circle one)-16
t
°
6 --- i� z0-Lf
Ambient Atmosphere In Vicinity of Sample Location: Time
4. Calculate 5% of the minimum helium concentration in the shroud: 17 ppm
Note: 1 % helium = 10,000 ppm
10. Shul In test prlot to sample collection completed? �Yes ❑ No
Confirm that helium in field screened samples is less than 5% of the minimum helium concentration
n the shroud prior to sampling: ❑ Confirmed� iY su£/IT2 a< 69 L,/S/r(f/y
,
Note: It not confirmed. troubleshoot leak prior to sample collection and docbment In comments below [vA[,
11. Sample Collection
Date
time
Sample ID
Summa Canister ID
Flow Controller q
Vacuum Gauges
Initial Vacuum
Finial Vacuum
fill, Hot
(In. Hg)
z Lf
3G—
S�T,—�- Z1o_ Z
z A
��
z/o3
3-. J
Analysis Requested on COC:
Comn�enb.

SUB -SLAB & SOIL VAPOR PROBE MEASUREMENTS
Geosyntec
consultants
1. Client Site Code: C�6iEN Date: Probe No.: ❑ Sub -slab probe tI Soll vapor probe
,
Project/Phase Number: �/�� 3S MlnRae 2000 or RKI GX-6000/GX-2012 Serial No.: / 2 2 TZ Lamp ID. / 11.7 eV
Site location: Landtach GE 2000 or 5000 Landfi8 Gas Molar Serial No.:
Weather: vu'+n. 4-p - D MDG 2D02 8u ele��or'Serial No.: ZZ -
Field Personnel: , W. / 1n"A Leak Detection Method: 6 Helium ❑ Waler Dam ❑ Other
Recorded By: Approximate Building Square footage: At Z.A
2. Surface Type: ❑ Asphalt ❑ concrete I Grass ❑ Other 3. Probe construction details:
�,/
Surface Thickness: inches/centimeters I_S Unknown Probe type Ji.e. VaporPin®, tainless Steel Implant, hreaded Brass Sub -slab Probe, etc,):
Slab Condition: A4 Tubing Type I Le. Teflo Nyloflow, r polyetheralherketone (PEZ inch
1 I Inch Borehole diameter:
Vapor Barrier Present?: ❑ Yes No ❑ unknown Probe diameter: Inch Tubing diameter: � f—
5. Initial Probe Pressure (prior to purging): ❑ Positive ❑ Negalive/Vacuum Drilling Method ( Le. Direct Push ommer Drill, Hand Auger, eic.):
Gauge Reading ,Q units: °j i ' Borehole Depth (It bgsj: Sand Pack Interval (ft bgs(: 4
6 Feld tubing blank reading (ppm }: PID Reading � ppm Date installed: Time Installed: to-- Leo
7. Shut in lest priorto purging completed? Yes ❑ No HOW t t• 4. 1 Casing Volume: ❑ Sub -slob probe �0.1 L Soll vapor probe
8. Purging "it methane is defected during purging of greater than 0.1% 12%of LEI), notify PM
Elapsed Bag Purge Cumulative CH'.. Cc; O- H2S Shroud (%)
Date Start Time End Time Tlme Volume Rate Volume (%vj I%v) I%v) (PPm)
(min.) (L) (LPM) (LJ Min Max
/, u I — I lr9.5
L (Calculate volume for soil vapor probe)
Helium
VOCs by ?sD
Sample 1ppm. %0 iPpmvl
(circle one)
Ambient Atmosphere In Vicinity of Sample Location: Time II I I I- - I
9. Calculate 5% of the minimum helium concentration In the shroud: / - ppmv
Note: 1 % helium = 10,000 ppm,
Confirm that helium in geld screened samples Is less than 5% of The minimum helium cancanlralliion
in the shroud prior To sompiing: El Confirmed & ray¢ • )4rVtf; y$11y.4 �}
Note: II not confirmed, troubleshoot teak prior to sample collection and document In comments be ow lawc-
11. Sample Collection
Dale Time
Analysis Requested on C
10, Shut In test prior to sample collection compleledt X- L u�
_ F4k,w Niocv�. ,
Sample ID SUlmma Conlslor ID Flow Conlrollel N Vacuum Gauga a tin. Hg) do "Q)
Vacuum

LI
SUB -SLAB & SOIL VAPOR PROBE MEASUREMENTS
1. Client Site Code: _ Dale: S 2 2
Projecl/Phase Number:
Site Location: t G
h r
Weather: r r
Feld Personnel: / PyAC,
Recorded By:
2 Su(tac T ❑ ❑
Geosyntec C,
consultants
Probe No.: % ❑/Sub -slab probe N'Soll vapor probe
MlnRoe 2D00 or RKI GX-MIGX-2012 Serial No.; Lamp: 5. )l 11.7 eV
Landlech GEM 2000 or 5000 Landfill Gas Molar Serial No.:. V
MDG 2002 Helium detector Serial No,;
Look Delectlon Method: 1�0 Helium ❑ Water Dam ❑ Other
Approximate Building Square Footage: ,(g_/-
e ype. Asphalt Concrete Gross ❑ Other 3. Probe construction details:
Sudace Thickness: Inches/cenfimefers Unknown Probe type (i.e. Vaporl'InS. Inless Steel irnpla , Threaded Brass Sub -slab Probe, etc.}:
Slob Condition: N/A Tubing Type l Le. Teflon, yla0o or polyelhere therketone (P EKJ):
Vapor Barrier Present?: ❑yes No ❑Unknown Probe diameter: 1` Inch Tubing diameter:
�inch Boreholediametet:�inch
5. Initial Probe Pressure (prior to purging): ❑ Positive ❑ Negolive/Vacuum Drilling Method (i.e. / `rect Pus)Hammer Drill, Hand Auger, etc.):
Gauge Reading , 0 Units: .r
r
°.�— Borehole Depth (ft bg/sJ _�_� Sand Pack Interval (fl bgs}: �•S��j, SI _
eS. Field tubing blank reading (ppm j: PID Reading _�_ ppm Date Installed: _ Jam/ / T1me Installed: 1 /30
7. Shut in lest prior to purging completed? Yes ❑ No L 4. 1 Casing Volume: ❑ Sub -slab probe <0.1 L It Soil vapor probe L [Calculate volume for soil vapor probe[
8. Purging • rt methane is detected during purging of greater than 0.1% 12%of LEL). notify PM
Helium
Elapsed Bag Purge Cumulative I
Dote Start Time End Time Time Volume Rate Volume CH4" CO2
0,
H2S Shroudl%)
Samplelppm. %0
vOCs by FID
Ippm•I
lmin.J (L} (LPM) ILl (%v) (%v)
f%vl
(Ppm) Min Max
Icircte onel
Z
►Sz1
�s��i1
­5
t
o 33
-°l
Is' -I
L.z
to
13.3
1.--;-5-
o a
IS30
'L
)
n's
43
11-Cc-
I•e
-E3
t3-1
I- U
C)•�
Z�'
3-
t�3�
Z.
)
)
IE o
1- Z
�-
.�i•
I 3
�•a
Ambient Atmosphere in Vicinity of Sample Location: Time
-
9. Calculate 5% of the minimum helium conceniralion in the shroud: V ppm
[-�
10. Shut n lest prior to sample collection compleled? Cy.1'di ❑ NO
Note: I % helium = 10.0D0 ppm;
Confirm that helium in field screened samples is less than 5%of the minlmum helium concenlrallon
in the shroud prior to sampling: ❑Confirmed J%�i)CI � 51 SNs �$tGsrnJC �F NfA GH
below
Note: If not confirmed. troubleshoot leak prior la somple co lectlon and docu ant In comments
11. Sample Collection
Dole lime Sample ID Summu CanfWn ID I low Controller 0
Inlltal Ygcuum
Vacuum Gouge 0 tin. 1101
rn.n �.ttum
pn_ nyl
—Ztt✓5ZJ- ILZ3o'1 1 ZLIo31-k I ZIu3
Analysis keque-lf&d on COC:

SUB -SLAB & SOIL VAPOR PROBE MEASUREMENTS
Geosyntec cl
consultants
T. Client Site Code-. Y-k- 7 Wr( - "'"brew'yL Dale: OR I L/
ProlecliphaseNumber' C--1:Q 1-031) �7
51le Location: ,,j 11 LV.-1 l J-,,, rr
�r 5
Weather: Q
Field Personnel', -
Recorded By:
Probe No.: !Q3,(.i - T _ Sub -slab probe snit vapor probe
MinRae 2000 or RKI GX-6000/GX-2012 Serial No.: I Zl. i 2 tomp: O / 11.7 eV
Landlech GEM 2000 or 5000 Landfill Gas Meier Serlal No.: ��0���
MDG 2002 Helium defector Serial No: 03 el- ZZ,?
Leak Detecllon Method: x Helium ❑ Water Dam ❑ Other
Approximate Building Square Foolage: NLA
2. Surface type: Leksphall ❑ Concrete ❑ Grass ❑ Other 3. Probe conshuclion details:
Surface Thickness: inches/centimeters ❑ unknown Probe type (i.e. VaporPlnO, Stainless Steel Implant, Threaded Bross Sub -slab Probe, elc.): to r.lG s5 S Fri 1P t1v L
Slab Condition: B N-1 N / Tubing Type ( Le. Teflon. Nylaflow, or poly eiheretherketone (PEEK)): ( w
p LSJ�Pt ( Unknown Probe diameter: Z inch cubing diameter: 1 t' inch Borehole diameter:
inch
Vapor Barrier Present?: yes o
5. Initial Probe Pressure (prior to purging): Positive ❑ NegolivelVacuum !''] Drilling Method (he. Direct Push. Hammer Drill. Hand Auger. etc.): Q
Gauge Rending Units: Borehole Depth (tt bgs): t Sand Pack Interval (It bgsj: /
6. Field tubing blank reading (ppm) PID Reading _ t pp
m Date Instalied: 7i� i.� Time installed: 0
7. Shut in lest prior to purging completed? t�Yes ❑ No �utd ,. k� M,h 4. 1 Casing Volume: El Sub -slab probe <0.1 L Soll vapor probe ' Z L (Calculate volume for soil vapor probe)
Helium
S. Purging "If methane is defected during purging at greater than 0.1%12%,of LEL), notify PM VOCsby NO
Elapsed Bag Purge Cumulative CI I.., CC), Oz H'S Shroud(%t Scmple(ppm..%► 1ppmv)
Dole Start Time End lime Time Volume Rate Volume (��) (%vl l%v) (PPm1 Min Max Icircteone)
(mina ILI (LPM) It 1 .0
a
Ambient Atmosphere in Vicinity of Sample Location: Time
9, Calculate 5% of the minimum helium concentration In the shroud:Joo m PP�
10, Shut In test prior to sample collection completed? Yes ElNo
Note: 1% helium=10.000 ppm.
Confirm that helium in field screened samples is less than 5% of the minimum helium concentration
in the shroud prior to sampling: Confirmed
Note: 11 not confirmed, troubleshoot eak prior 10 sample collection and document In comments below
1T. Sample Collection 06�14k,' InlliolVacuum
Date lime Sample ID
Summa Canislor ID flow Conlroilor Fr Vacuum Gauge p (in. Viol 1'1' rij)
C '
SC,(�'`�"ZI0 L ZLlLid( �334Z la'S O
L�Z
e--F Analysks Requested on COC: � V r (
^� Comments:
CL)
k t

SUB -SLAB & SOIL VAPOR PROBE MEASUREMENTS Geosyntec °
1. Client Site Code: _(�'e*tjovr
Date:
Projecl/Phase Number: �-05�
Site Location i " �
Weather: anti go
Field Personnel: Nl• (�ti
Recorded By:
2. Surface type: Asph_a"lt �❑� Concrete Grass ❑ Other
/
Surface Thickness: 7N inches/centimeters Unknown
Slab Condition:
Vapor Barrier Present?: ❑ Yes No ❑ Unknown
S. Initial Probe Pressure (prior to purging): L_i Positive U N,egative/Vacuum
Gauge Reading C) • d Units: �JC(%KS r41
S. field tubing brank reading (ppm j: PID Reading rJ ppm,
L� co��nsultants
Probe No.: S El Sub -slab probe it Soit vo or probe
MlnRae 2000 or RKI GX-6000/GX-2012 Serial No.; /Z Z 5`uz Lamp: 0.6 11.7 eV
Londlech GEM 2000 or 5= Landllll Gas Meter Serlal No.:
MDG 2002 Hellum detector Serial No,: D-Z
Leak Detecllon Method: 4 Helium ❑ Water Dam s f❑ Qlher
Approximate Bullding Square footage: f`�
3. Probe construction details:
Probe type )i.e, VaporPinO, Stainless Steel Implant. Threaded Brass Sub -stab Probe, e
tc.): a N s
Tubing Type ( Le. Teflon, N Iait . or polyetheretherkeione (PEEK) / ' 1r4 ��� I --
diameter: r Z' Inch Tubing diameter._ Inch PT,
diameter. 2—
Probe Inch
Drilling Method (Le. Direct Push, Hammer Drill, Hand Auger, etc.): D PT
7
Borehole Depth (It bgs): ) Sand Pack Interval (ft bgs)):
Date Installed: / Time Installed: ` 9 /0
b�
7. Shut in test prior to purging completed? `F� Yes
❑ No r °1� f_
4.
1 Casing Volume: ❑ Sub -slab probe <0.1 L
Soil vapor probe 2_ L (Calculate volume for sal vapor pro _)
8. Purging ••I/ methane is derectea during purging at greater than 0.1%� 122%of LELj, notify PM
Helium
vOCs ay PiD
Elapsed
Bag
Purge
Cumulative
CH, '•
CO,
Oz
HzS
Shroud 1%►
Sample Ippm,. %)
Ip; -n,
Dale
Start Time
End Time
Time
Volume
Rate
Volume
(%v)
(%v)
(%vl
(PPTn)
Min
Max
(circle one)
(min.)
(L)
(LPM)
(L]
.,
- r
/, Z
i- i i.
2
---�
1 I , I2
2
t�i
n, fl
D
Ambient Atmosphere in vicinity of Sample Location: Time-
v
. Calculate 5% of the minimum helium concentration In the shroud: V - ppm
Note: I % helium = 10,000 ppm,
Confirm that helium in field screened samples is less than S%of the minimum helium concentration
In the shroud prior to sampling: �A Confirmed
Note: It not confirmed, troubleshoot leak prior to sample collection and document In comments below
11. Sample Collection
Date lime Sample ID
in z.1—
Analysis Requested on COC
ornrnents:
10. Shut in lest prior to sample collection eompleted3 Nt Yes ❑ Na
Initial vacuum
SIIITlrtla Canlsler ID I low Controller N Vacuum Gauge rr 1M Hal
1 L.: -s 3�
Furl vac—un

ATTACHMENT B
Soil Gas Analytical Laboratory Report

tiff eurofins
Air Toxics
6/8/2021
Mr. Michael Wang
GeoSyntec Consultants
2501 Blue Ridge Road
Suite 430
Raleigh NC 27607
Project Name: GN7035
Project #: GN7035
Workorder #: 2105648A
Dear Mr. Michael Wang
The following report includes the data for the above referenced project for sample(s)
received on 5/29/2021 at Eurofins Air Toxics LLC.
The data and associated QC analyzed by TO-15 are compliant with the project
requirements or laboratory criteria with the exception of the deviations noted in the
attached case narrative.
Thank you for choosing Eurofins Air Toxics LLC. for your air analysis needs. Eurofins Air
Toxics Inc. is committed to providing accurate data of the highest quality. Please feel free
to contact the Project Manager: Brian Whittaker at 916-985-1000 if you have any
questions regarding the data in this report.
Regards,
Brian Whittaker
Project Manager
Eurotlns Air Toy ics, LLC
180 Blue Ravine Road, Suite 8
FoIsomr CA 95630
T 916-985-1000
F 916-351-8279
www.airtoxics.com
Page 1 of 55

%% eurofins
Air Toxics
WORK ORDER #: 2405648A
Work
Order Summary
CLIENT:
Mr. Michael Wang
BILL TO:
Mr. Matthew Jenny
GeoSyntec Consultants
GeoSyntec Consultants
2501 Blue Ridge Road
2501 Blue Ridge Road
Suite 430
Suite 430
Raleigh, NC 27607
Raleigh, NC 27607
PHONE:
919-870-0576
P.O. #
127000521
FAX:
PROJECT #
GN7035 GN7035
DATE RECEIVED:
05/29/2021
CONTACT:
Brian Whittaker
DATE COMPLETED:
06/08/2021
RECEIPT
FINAL
FRACTION #
NAME
TEST
VAC./PRES.
PRESSURE
01A
SGP-1-210528
TO-15
4.3 "Hg
9.7 psi
02A
SGP-2-210527
TO-15
7.1 "Hg
9.9 psi
03A
SGP-3-210528
TO-15
4.9 "Hg
10 psi
04A
SGP-4-210527
TO-15
6.3 "Hg
10 psi
05A
SGP-5-210527
TO-15
9 "Hg
10 psi
06A
SGP-6-210527
TO-15
4.9 "Hg
10 psi
07A
SGP-7-210527
TO-15
7.8 "Hg
10 psi
08A
SGP-8-210527
TO-15
11 "Hg
9.8 psi
09A
DUP-1
TO-15
9.8 "Hg
10 psi
10A
Lab Blank
TO-15
NA
NA
IOB
Lab Blank
TO-15
NA
NA
11A
CCV
TO-15
NA
NA
11B
CCV
TO-15
NA
NA
12A
LCS
TO-15
NA
NA
12AA
LCSD
TO-15
NA
NA
12B
LCS
TO-15
NA
NA
12BB
LCSD
TO-15
NA
NA
CERTIFIED BY: r DATE:
Technical Director
06/08/21
Certification numbers: AZ Licensure AZ0775, FL NELAP — E87680, LA NELAP — 02089, NH NELAP - 209220, NJ NELAP - CA016,
NY NELAP - 11291, TX NELAP - T104704434-20-16, UT NELAP — CA009332020-12, VA NELAP - 10615, WA NELAP - C935
Name of Accreditation Body: NELAP/ORELAP (Oregon Environmental Laboratory Accreditation Program)
Accreditation number: CA300005-014, Effective date: 10/18/2020, Expiration date: 10/17/2021.
Eurofins Air Toxics, LLC certifies that the test results contained in this report meet all requirements of the NELAC standards
This report shall not be reproduced, except in full, without the written approval ofEurofins Air Toxics, LLC.
180 BLUE RAVINE ROAD, SUITE B FOLSOM, CA - 95630
[phone] . [phone] . FAX [phone]
Page 2 of 55

%% eurofins
Air Toxics
LABORATORY NARRATIVE
EPA Method TO-15
GeoSyntec Consultants
Workorder# 2105648A
Nine 1 Liter Summa Canister samples were received on May 29, 2021. The laboratory performed analysis
via EPA Method TO-15 using GUMS in the full scan mode.
Receiving Notes
The Chain of Custody (COC) information for sample SGP-2-210527 did not match the entry on the
sample tag with regard to sample identification. The information on the sample tag was used to process
and report the sample.
The Chain of Custody (COC) information for sample SGP-3-210528 did not match the entry on the
sample tag with regard to sample identification. The information on the COC was used to process and
report the sample.
Analytical Notes
As per client project requirements, the laboratory has reported estimated values for target compound hits
that are below the Reporting Limit but greater than the Method Detection Limit. Concentrations that are
below the level at which the canister was certified may be false positives.
Dilution was performed on samples SGP-1-210528, SGP-2-210527, and SGP-5-210527 due to the
presence of high level non -target species.
Dilution was performed on samples SGP-3-210528 and DUP-1 due to matrix interference.
All Quality Control Limit exceedances and affected sample results are noted by flags. Each flag is defined
at the bottom of this Case Narrative and on each Sample Result Summary page. Target compound
non -detects in the samples that are associated with high bias in QC analyses have not been flagged.
Definition of Data Qualifyinn Flags
Ten qualifiers may have been used on the data analysis sheets and indicates as follows:
B - Compound present in laboratory blank greater than reporting limit (background subtraction not
performed).
J - Estimated value.
E - Exceeds instrument calibration range.
S - Saturated peak.
Q - Exceeds quality control limits.
U - Compound analyzed for but not detected above the reporting limit, LOD, or MDL value. See
data page for project specific U-flag definition.
UJ- Non -detected compound associated with low bias in the CCV
N - The identification is based on presumptive evidence.
M - Reported value may be biased due to apparent matrix interferences.
CN - See Case Narrative.
File extensions may have been used on the data analysis sheets and indicates
Page 3 of 55

%% eurofins
Air Toxics
as follows:
a -File was requantified
b-File was quantified by a second column and detector
rl-File was requantified for the purpose of reissue
Page 4 of 55

tiff' e u rof i n s
EPA METHOD TO-15 GC/MS FULL SCAN
GN7035
Client ID: SGP-1-210528
Lab ID: 2105648A-01A Date/Time Analyzed: 6/4/21 03:53 PM
Date/Time Collected: 5/28/21 10:42 AM Dilution Factor: 12.9
Media: 1 Liter Summa Canister Instrument/Filename: msda.i / a060408
Air Toxics
Compound
CAS#
MDL
(ug/m3)
LOD
(ug/m3)
Rpt. Limit
(ug/m3)
Amount
(ug/m3)
1,1,1-Trichloroethane
71-55-6
6.8
14
35
Not Detected
1,1,2,2-Tetrachloroethane
79-34-5
5.7
26
44
Not Detected
1,1,2-Trichloroethane
79-00-5
8.0
21
35
Not Detected
1,1-Dichloroethane
75-34-3
4.6
10
26
Not Detected
1,1-Dichloroethene
75-35-4
7.1
15
26
Not Detected
1,2,4-Trichlorobenzene
120-82-1
26
110
190
Not Detected
1,2,4-Trimethyl benzene
95-63-6
3.1
19
32
22 J
1,2-Dibromoethane (EDB)
106-93-4
3.9
30
50
Not Detected
1,2-Dichlorobenzene
95-50-1
3.9
23
39
17 J
1,2-Dichloroethane
107-06-2
4.9
16
26
Not Detected
1,2-Dichloropropane
78-87-5
6.4
18
30
Not Detected
1,3,5-Trimethylbenzene
108-67-8
4.5
19
32
9.2 J
1,3-Butadiene
106-99-0
2.9
8.6
14
Not Detected
1,3-Dichlorobenzene
541-73-1
5.2
23
39
Not Detected
1,4-Dichlorobenzene
106-46-7
4.1
23
39
9.6 J
1,4-Dioxane
123-91-1
6.0
23
93
Not Detected
2,2,4-Trimethylpentane
540-84-1
2.5
18
30
330
2-Butanone (Methyl Ethyl Ketone)
78-93-3
8.5
46
76
45 J
2-Hexanone
591-78-6
8.2
63
100
Not Detected
2-Propanol
67-63-0
3.6
38
63
17 J
3-Chloropropene
107-05-1
7.9
20
81
Not Detected
4-Ethyltoluene
622-96-8
6.0
19
32
18 J
4-Methyl-2-pentanone
108-10-1
7.0
16
26
Not Detected
Acetone
67-64-1
8.7
37
150
250
Page 5 of 55

tiff' e u rof i n s
EPA METHOD TO-15 GC/MS FULL SCAN
GN7035
Client ID: SGP-1-210528
Lab ID: 2105648A-01A Date/Time Analyzed: 6/4/21 03:53 PM
Date/Time Collected: 5/28/21 10:42 AM Dilution Factor: 12.9
Media: 1 Liter Summa Canister Instrument/Filename: msda.i / a060408
Air Toxics
Compound
CAS#
MDL
(ug/m3)
LOD
(ug/m3)
Rpt. Limit
(ug/m3)
Amount
(ug/m3)
alpha-Chlorotoluene
100-44-7
5.7
20
33
Not Detected
Benzene
71-43-2
2.2
12
21
34
Bromodichloromethane
75-27-4
6.1
17
43
Not Detected
Bromoform
75-25-2
6.6
40
67
Not Detected
Bromomethane
74-83-9
14
60
250
Not Detected
Carbon Disulfide
75-15-0
7.1
48
80
11 J
Carbon Tetrachloride
56-23-5
6.1
24
40
Not Detected
Chlorobenzene
108-90-7
1.7
12
30
190
Chloroethane
75-00-3
11
41
68
Not Detected
Chloroform
67-66-3
3.0
12
31
Not Detected
Chloromethane
74-87-3
5.7
32
130
Not Detected
cis-1,2-Dichloroethene
156-59-2
8.2
15
26
230
cis-1,3-Dichloropropene
10061-01-5
5.6
18
29
Not Detected
Cumene
98-82-8
2.2
19
32
Not Detected
Cyclohexane
110-82-7
2.5
13
22
270
Dibromochloromethane
124-48-1
8.4
33
55
Not Detected
Ethanol
64-17-5
25
29
120
47 J
Ethyl Benzene
100-41-4
5.0
17
28
11 J
Freon 11
75-69-4
3.6
22
36
Not Detected
Freon 113
76-13-1
9.6
30
49
Not Detected
Freon 114
76-14-2
6.6
27
45
Not Detected
Freon 12
75-71-8
4.4
19
32
Not Detected
Heptane
142-82-5
7.0
16
26
38
Hexachlorobutadiene
87-68-3
36
160
280
Not Detected
Page 6 of 55

tiff' e u rof i n s
EPA METHOD TO-15 GC/MS FULL SCAN
GN7035
Client ID: SGP-1-210528
Lab ID: 2105648A-01A Date/Time Analyzed: 6/4/21 03:53 PM
Date/Time Collected: 5/28/21 10:42 AM Dilution Factor: 12.9
Media: 1 Liter Summa Canister Instrument/Filename: msda.i / a060408
Air Toxics
Compound
CAS#
MDL
(ug/m3)
LOD
(ug/m3)
Rpt. Limit
(ug/m3)
Amount
(ug/m3)
Hexane
110-54-3
4.6
14
23
71
m,p-Xylene
108-38-3
4.0
17
28
38
Methyl tert-butyl ether
1634-04-4
3.2
23
93
Not Detected
Methylene Chloride
75-09-2
6.5
54
220
Not Detected
o-Xylene
95-47-6
4.5
17
28
22 J
Propylbenzene
103-65-1
4.9
19
32
Not Detected
Styrene
100-42-5
4.3
16
27
Not Detected
Tetrachloroethene
127-18-4
5.6
26
44
21 J
Tetrahydrofuran
109-99-9
3.0
11
19
Not Detected
Toluene
108-88-3
1.6
14
24
46
trans-1,2-Dichloroethene
156-60-5
5.7
15
26
Not Detected
trans-1,3-Dichloropropene
10061-02-6
6.6
18
29
Not Detected
Trichloroethene
79-01-6
5.2
21
35
16 J
Vinyl Chloride
75-01-4
4.3
9.9
16
101
J = Estimated value.
D: Analyte not within the DoD scope of accreditation
Surrogates
CAS#
Limits
%Recovery
1,2-Dichloroethane-d4
17060-07-0
70-130
93
4-Bromofluorobenzene
460-00-4
70-130
100
Toluene-d8
2037-26-5
70-130
110
Page 7 of 55

tiff' e u rof i n s
EPA METHOD TO-15 GC/MS FULL SCAN
GN7035
Client ID: SGP-2-210527
Lab ID: 2105648A-02A Date/Time Analyzed: 6/4/21 04:18 PM
Date/Time Collected: 5/27/21 05:56 PM Dilution Factor: 8.77
Media: 1 Liter Summa Canister Instrument/Filename: msda.i / a060409
Air Toxics
Compound
CAS#
MDL
(ug/m3)
LOD
(ug/m3)
Rpt. Limit
(ug/m3)
Amount
(ug/m3)
1,1,1-Trichloroethane
71-55-6
4.6
9.6
24
Not Detected
1,1,2,2-Tetrachloroethane
79-34-5
3.9
18
30
Not Detected
1,1,2-Trichloroethane
79-00-5
5.5
14
24
Not Detected
1,1-Dichloroethane
75-34-3
3.1
7.1
18
Not Detected
1,1-Dichloroethene
75-35-4
4.8
10
17
Not Detected
1,2,4-Trichlorobenzene
120-82-1
18
78
130
Not Detected
1,2,4-Trimethyl benzene
95-63-6
2.1
13
22
16 J
1,2-Dibromoethane (EDB)
106-93-4
2.6
20
34
Not Detected
1,2-Dichlorobenzene
95-50-1
2.6
16
26
Not Detected
1,2-Dichloroethane
107-06-2
3.3
11
18
Not Detected
1,2-Dichloropropane
78-87-5
4.4
12
20
Not Detected
1,3,5-Trimethyl benzene
108-67-8
3.0
13
22
6.9 J
1,3-Butadiene
106-99-0
2.0
5.8
9.7
Not Detected
1,3-Dichlorobenzene
541-73-1
3.6
16
26
Not Detected
1,4-Dichlorobenzene
106-46-7
2.8
16
26
Not Detected
1,4-Dioxane
123-91-1
4.1
16
63
Not Detected
2,2,4-Trimethylpentane
540-84-1
1.7
12
20
570
2-Butanone (Methyl Ethyl Ketone)
78-93-3
5.8
31
52
7.8 J
2-Hexanone
591-78-6
5.6
43
72
Not Detected
2-Propanol
67-63-0
2.4
26
43
26 J
3-Chloropropene
107-05-1
5.4
14
55
Not Detected
4-Ethyltoluene
622-96-8
4.1
13
22
14 J
4-Methyl-2-pentanone
108-10-1
4.8
11
18
Not Detected
Acetone
67-64-1
5.9
25
100
70 J
Page 8 of 55

tiff' e u rof i n s
EPA METHOD TO-15 GC/MS FULL SCAN
GN7035
Client ID: SGP-2-210527
Lab ID: 2105648A-02A Date/Time Analyzed: 6/4/21 04:18 PM
Date/Time Collected: 5/27/21 05:56 PM Dilution Factor: 8.77
Media: 1 Liter Summa Canister Instrument/Filename: msda.i / a060409
Air Toxics
Compound
CAS#
MDL
(ug/m3)
LOD
(ug/m3)
Rpt. Limit
(ug/m3)
Amount
(ug/m3)
alpha-Chlorotoluene
100-44-7
3.9
14
23
Not Detected
Benzene
71-43-2
1.5
8.4
14
18
Bromodichloromethane
75-27-4
4.1
12
29
Not Detected
Bromoform
75-25-2
4.5
27
45
Not Detected
Bromomethane
74-83-9
9.3
41
170
Not Detected
Carbon Disulfide
75-15-0
4.8
33
55
9.0 J
Carbon Tetrachloride
56-23-5
4.1
16
28
Not Detected
Chlorobenzene
108-90-7
1.1
8.1
20
220
Chloroethane
75-00-3
7.5
28
46
Not Detected
Chloroform
67-66-3
2.0
8.6
21
Not Detected
Chloromethane
74-87-3
3.9
22
90
Not Detected
cis-1,2-Dichloroethene
156-59-2
5.6
10
17
Not Detected
cis-1,3-Dichloropropene
10061-01-5
3.8
12
20
Not Detected
Cumene
98-82-8
1.5
13
22
Not Detected
Cyclohexane
110-82-7
1.7
9.0
15
360
Dibromochloromethane
124-48-1
5.7
22
37
Not Detected
Ethanol
64-17-5
17
20
83
180
Ethyl Benzene
100-41-4
3.4
11
19
8.7 J
Freon 11
75-69-4
2.4
15
25
Not Detected
Freon 113
76-13-1
6.5
20
34
Not Detected
Freon 114
76-14-2
4.5
18
31
Not Detected
Freon 12
75-71-8
3.0
13
22
Not Detected
Heptane
142-82-5
4.8
11
18
57
Hexachlorobutadiene
87-68-3
24
110
190
Not Detected
Page 9 of 55

tiff' e u rof i n s
EPA METHOD TO-15 GC/MS FULL SCAN
GN7035
Client ID: SGP-2-210527
Lab ID: 2105648A-02A Date/Time Analyzed: 6/4/21 04:18 PM
Date/Time Collected: 5/27/21 05:56 PM Dilution Factor: 8.77
Media: 1 Liter Summa Canister Instrument/Filename: msda.i / a060409
Air Toxics
Compound
CAS#
MDL
(ug/m3)
LOD
(ug/m3)
Rpt. Limit
(ug/m3)
Amount
(ug/m3)
Hexane
110-54-3
3.1
9.3
15
200
m,p-Xylene
108-38-3
2.7
11
19
17 J
Methyl tert-butyl ether
1634-04-4
2.2
16
63
2.9 J
Methylene Chloride
75-09-2
4.4
36
150
Not Detected
o-Xylene
95-47-6
3.0
11
19
13 J
Propylbenzene
103-65-1
3.3
13
22
9.2 J
Styrene
100-42-5
2.9
11
19
Not Detected
Tetrachloroethene
127-18-4
3.8
18
30
Not Detected
Tetrahydrofuran
109-99-9
2.0
7.8
13
Not Detected
Toluene
108-88-3
1.1
9.9
16
36
trans-1,2-Dichloroethene
156-60-5
3.8
10
17
Not Detected
trans-1,3-Dichloropropene
10061-02-6
4.5
12
20
Not Detected
Trichloroethene
79-01-6
3.5
14
24
Not Detected
Vinyl Chloride
75-01-4
2.9
6.7
11
Not Detected
J = Estimated value.
D: Analyte not within the DoD scope of accreditation
Surrogates
CAS#
Limits
%Recovery
1,2-Dichloroethane-d4
17060-07-0
70-130
107
4-Bromofluorobenzene
460-00-4
70-130
101
Toluene-d8
2037-26-5
70-130
106
Page 10 of 55

tiff' e u rof i n s
EPA METHOD TO-15 GC/MS
GN7035
Client ID: SGP-3-210528
Lab ID: 2105648A-03A Date/Time Analyzed: 6/7/21 02:43 PM
Date/Time Collected: 5/28/21 11:40 AM Dilution Factor: 2.01
Media: 1 Liter Summa Canister Instrument/Filename: msd14.i / 14060714
Air Toxics
Compound
CAS#
MDL
(ug/m3)
LOD
(ug/m3)
Rpt. Limit
(ug/m3)
Amount
(ug/m3)
1,1,1-Trichloroethane
71-55-6
4.3
44
55
Not Detected
1,1,2,2-Tetrachloroethane
79-34-5
9.9
55
69
Not Detected
1,1,2-Trichloroethane
79-00-5
11
44
55
Not Detected
1,1-Dichloroethane
75-34-3
6.8
32
41
Not Detected
1,1-Dichloroethene
75-35-4
8.0
32
40
Not Detected
1,2,4-Trichlorobenzene
120-82-1
180
290
300
Not Detected
1,2,4-Trimethyl benzene
95-63-6
6.0
40
49
440
1,2-Dibromoethane (EDB)
106-93-4
15
62
77
Not Detected
1,2-Dichlorobenzene
95-50-1
14
48
60
Not Detected
1,2-Dichloroethane
107-06-2
7.2
32
41
Not Detected
1,2-Dichloropropane
78-87-5
14
37
46
Not Detected
1,3,5-Trimethyl benzene
108-67-8
5.2
40
49
420
1,3-Butadiene
106-99-0
10
18
22
Not Detected
1,3-Dichlorobenzene
541-73-1
11
48
60
Not Detected
1,4-Dichlorobenzene
106-46-7
11
48
60
Not Detected
1,4-Dioxane
123-91-1
17
29
140
Not Detected
2,2,4-Trimethylpentane
540-84-1
7.0
38
47
52
2-Butanone (Methyl Ethyl Ketone)
78-93-3
31
110
120
Not Detected
2-Hexanone
591-78-6
36
160
160
Not Detected
2-Propanol
67-63-0
16
95
99
33 J
3-Chloropropene
107-05-1
16
120
120
Not Detected
4-Ethyltoluene
622-96-8
4.7
40
49
280
4-Methyl-2-pentanone
108-10-1
23
37
41
Not Detected
Acetone
67-64-1
16
92
95
260
Page 11 of 55

tiff' e u rof i n s
EPA METHOD TO-15 GC/MS
GN7035
Client ID: SGP-3-210528
Lab ID: 2105648A-03A Date/Time Analyzed: 6/7/21 02:43 PM
Date/Time Collected: 5/28/21 11:40 AM Dilution Factor: 2.01
Media: 1 Liter Summa Canister Instrument/Filename: msd14.i / 14060714
Air Toxics
Compound
CAS#
MDL
(ug/m3)
LOD
(ug/m3)
Rpt. Limit
(ug/m3)
Amount
(ug/m3)
alpha-Chlorotoluene
100-44-7
7.4
42
52
Not Detected
Benzene
71-43-2
2.6
26
32
110
Bromodichloromethane
75-27-4
12
54
67
Not Detected
Bromoform
75-25-2
12
83
100
Not Detected
Bromomethane
74-83-9
23
150
160
Not Detected
Carbon Disulfide
75-15-0
10
120
120
37 J
Carbon Tetrachloride
56-23-5
9.6
50
63
Not Detected
Chlorobenzene
108-90-7
4.6
37
46
Not Detected
Chloroethane
75-00-3
16
100
110
Not Detected
Chloroform
67-66-3
10
39
49
Not Detected
Chloromethane
74-87-3
31
80
83
Not Detected
cis- 1,2-Dichloroethene
156-59-2
10
32
40
Not Detected
cis-1,3-Dichloropropene
10061-01-5
6.9
36
46
Not Detected
Cumene
98-82-8
5.5
40
49
300
Cyclohexane
110-82-7
13
28
34
120
Dibromochloromethane
124-48-1
13
68
86
Not Detected
Ethanol
64-17-5
29
73
76
79
Ethyl Benzene
100-41-4
6.4
35
44
300
Freon 11
75-69-4
7.6
45
56
Not Detected
Freon 113
76-13-1
17
62
77
Not Detected
Freon 114
76-14-2
18
56
70
Not Detected
Freon 12
75-71-8
14
40
50
Not Detected
Heptane
142-82-5
11
33
41
960
Hexachlorobutadiene
87-68-3
200
410
430
Not Detected
Page 12 of 55

tiff' e u rof i n s
EPA METHOD TO-15 GC/MS
GN7035
Client ID: SGP-3-210528
Lab ID: 2105648A-03A Date/Time Analyzed: 6/7/21 02:43 PM
Date/Time Collected: 5/28/21 11:40 AM Dilution Factor: 2.01
Media: 1 Liter Summa Canister Instrument/Filename: msd14.i / 14060714
Air Toxics
Compound
CAS#
MDL
(ug/m3)
LOD
(ug/m3)
Rpt. Limit
(ug/m3)
Amount
(ug/m3)
Hexane
110-54-3
6.8
28
35
2500
m,p-Xylene
108-38-3
8.0
35
44
240
Methyl tert-butyl ether
1634-04-4
13
29
36
Not Detected
Methylene Chloride
75-09-2
24
130
140
Not Detected
o-Xylene
95-47-6
5.6
35
44
140
Propylbenzene
103-65-1
6.3
40
49
46 J
Styrene
100-42-5
7.4
34
43
Not Detected
Tetrachloroethene
127-18-4
14
54
68
Not Detected
Tetrahydrofuran
109-99-9
14
24
30
Not Detected
Toluene
108-88-3
4.9
30
38
74
trans-1,2-Dichloroethene
156-60-5
8.7
32
40
Not Detected
trans-1,3-Dichloropropene
10061-02-6
20
36
46
Not Detected
Trichloroethene
79-01-6
12
43
54
Not Detected
Vinyl Chloride
75-01-4
12
20
26
Not Detected
J = Estimated value.
D: Analyte not within the DoD scope of accreditation
Surrogates
CAS#
Limits
%Recovery
1,2-Dichloroethane-d4
17060-07-0
70-130
96
4-Bromofluorobenzene
460-00-4
70-130
112
Toluene-d8
2037-26-5
70-130
100
Page 13 of 55

tiff' e u rof i n s
EPA METHOD TO-15 GC/MS FULL SCAN
GN7035
Client ID: SGP-4-210527
Lab ID: 2105648A-04A Date/Time Analyzed: 6/4/21 09:51 PM
Date/Time Collected: 5/27/21 04:40 PM Dilution Factor: 2.13
Media: 1 Liter Summa Canister Instrument/Filename: msda.i / a060418
Air Toxics
Compound
CAS#
MDL
(ug/m3)
LOD
(ug/m3)
Rpt. Limit
(ug/m3)
Amount
(ug/m3)
1,1,1-Trichloroethane
71-55-6
1.1
2.3
5.8
Not Detected
1,1,2,2-Tetrachloroethane
79-34-5
0.94
4.4
7.3
Not Detected
1,1,2-Trichloroethane
79-00-5
1.3
3.5
5.8
Not Detected
1,1-Dichloroethane
75-34-3
0.76
1.7
4.3
Not Detected
1,1-Dichloroethene
75-35-4
1.2
2.5
4.2
Not Detected
1,2,4-Trichlorobenzene
120-82-1
4.4
19
32
Not Detected
1,2,4-Trimethyl benzene
95-63-6
0.51
3.1
5.2
5.8
1,2-Dibromoethane (EDB)
106-93-4
0.64
4.9
8.2
Not Detected
1,2-Dichlorobenzene
95-50-1
0.64
3.8
6.4
Not Detected
1,2-Dichloroethane
107-06-2
0.80
2.6
4.3
Not Detected
1,2-Dichloropropane
78-87-5
1.1
3.0
4.9
Not Detected
1,3,5-Trimethyl benzene
108-67-8
0.74
3.1
5.2
3.6 J
1,3-Butadiene
106-99-0
0.48
1.4
2.4
Not Detected
1,3-Dichlorobenzene
541-73-1
0.87
3.8
6.4
Not Detected
1,4-Dichlorobenzene
106-46-7
0.68
3.8
6.4
Not Detected
1,4-Dioxane
123-91-1
1.0
3.8
15
2.0 J
2,2,4-Trimethylpentane
540-84-1
0.42
3.0
5.0
980
2-Butanone (Methyl Ethyl Ketone)
78-93-3
1.4
7.5
12
13
2-Hexanone
591-78-6
1.4
10
17
Not Detected
2-Propanol
67-63-0
0.59
6.3
10
19
3-Chloropropene
107-05-1
1.3
3.3
13
Not Detected
4-Ethyltoluene
622-96-8
0.99
3.1
5.2
6.4
4-Methyl-2-pentanone
108-10-1
1.2
2.6
4.4
Not Detected
Acetone
67-64-1
1.4
6.1
25
50
Page 14 of 55

tiff' e u rof i n s
EPA METHOD TO-15 GC/MS FULL SCAN
GN7035
Client ID: SGP-4-210527
Lab ID: 2105648A-04A Date/Time Analyzed: 6/4/21 09:51 PM
Date/Time Collected: 5/27/21 04:40 PM Dilution Factor: 2.13
Media: 1 Liter Summa Canister Instrument/Filename: msda.i / a060418
Air Toxics
Compound
CAS#
MDL
(ug/m3)
LOD
(ug/m3)
Rpt. Limit
(ug/m3)
Amount
(ug/m3)
alpha-Chlorotoluene
100-44-7
0.95
3.3
5.5
Not Detected
Benzene
71-43-2
0.36
2.0
3.4
120
Bromodichloromethane
75-27-4
1.0
2.8
7.1
Not Detected
Bromoform
75-25-2
1.1
6.6
11
Not Detected
Bromomethane
74-83-9
2.3
9.9
41
Not Detected
Carbon Disulfide
75-15-0
1.2
8.0
13
6.8 J
Carbon Tetrachloride
56-23-5
1.0
4.0
6.7
Not Detected
Chlorobenzene
108-90-7
0.28
2.0
4.9
Not Detected
Chloroethane
75-00-3
1.8
6.7
11
Not Detected
Chloroform
67-66-3
0.50
2.1
5.2
Not Detected
Chloromethane
74-87-3
0.95
5.3
22
Not Detected
cis- 1,2-Dichloroethene
156-59-2
1.4
2.5
4.2
Not Detected
cis- 1,3-Dichloropropene
10061-01-5
0.92
2.9
4.8
Not Detected
Cumene
98-82-8
0.36
3.1
5.2
20
Cyclohexane
110-82-7
0.41
2.2
3.7
370
Dibromochloromethane
124-48-1
1.4
5.4
9.1
Not Detected
Ethanol
64-17-5
4.2
4.8
20
650
Ethyl Benzene
100-41-4
0.83
2.8
4.6
46
Freon 11
75-69-4
0.59
3.6
6.0
Not Detected
Freon 113
76-13-1
1.6
4.9
8.2
Not Detected
Freon 114
76-14-2
1.1
4.5
7.4
Not Detected
Freon 12
75-71-8
0.72
3.2
5.3
Not Detected
Heptane
142-82-5
1.2
2.6
4.4
140
Hexachlorobutadiene
87-68-3
6.0
27
45
Not Detected
Page 15 of 55

tiff' e u rof i n s
EPA METHOD TO-15 GC/MS FULL SCAN
GN7035
Client ID: SGP-4-210527
Lab ID: 2105648A-04A Date/Time Analyzed: 6/4/21 09:51 PM
Date/Time Collected: 5/27/21 04:40 PM Dilution Factor: 2.13
Media: 1 Liter Summa Canister Instrument/Filename: msda.i / a060418
Air Toxics
Compound
CAS#
MDL
(ug/m3)
LOD
(ug/m3)
Rpt. Limit
(ug/m3)
Amount
(ug/m3)
Hexane
110-54-3
0.76
2.2
3.8
380
m,p-Xylene
108-38-3
0.67
2.8
4.6
25
Methyl tert-butyl ether
1634-04-4
0.53
3.8
15
Not Detected
Methylene Chloride
75-09-2
1.1
8.9
37
Not Detected
o-Xylene
95-47-6
0.74
2.8
4.6
8.2
Propylbenzene
103-65-1
0.80
3.1
5.2
3.4 J
Styrene
100-42-5
0.71
2.7
4.5
Not Detected
Tetrachloroethene
127-18-4
0.93
4.3
7.2
4.2 J
Tetrahydrofuran
109-99-9
0.49
1.9
3.1
Not Detected
Toluene
108-88-3
0.26
2.4
4.0
10
trans-1,2-Dichloroethene
156-60-5
0.94
2.5
4.2
Not Detected
trans-1,3-Dichloropropene
10061-02-6
1.1
2.9
4.8
Not Detected
Trichloroethene
79-01-6
0.86
3.4
5.7
Not Detected
Vinyl Chloride
75-01-4
0.71
1.6
2.7
Not Detected
J = Estimated value.
D: Analyte not within the DoD scope of accreditation
Surrogates
CAS#
Limits
%Recovery
1,2-Dichloroethane-d4
17060-07-0
70-130
99
4-Bromofluorobenzene
460-00-4
70-130
95
Toluene-d8
2037-26-5
70-130
107
Page 16 of 55

tiff' e u rof i n s
EPA METHOD TO-15 GC/MS FULL SCAN
GN7035
Client ID: SGP-5-210527
Lab ID: 2105648A-05A Date/Time Analyzed: 6/4/21 07:45 PM
Date/Time Collected: 5/27/21 02:51 PM Dilution Factor: 4.80
Media: 1 Liter Summa Canister Instrument/Filename: msda.i / a060417
Air Toxics
Compound
CAS#
MDL
(ug/m3)
LOD
(ug/m3)
Rpt. Limit
(ug/m3)
Amount
(ug/m3)
1,1,1-Trichloroethane
71-55-6
2.5
5.2
13
Not Detected
1,1,2,2-Tetrachloroethane
79-34-5
2.1
9.9
16
Not Detected
1,1,2-Trichloroethane
79-00-5
3.0
7.8
13
Not Detected
1,1-Dichloroethane
75-34-3
1.7
3.9
9.7
Not Detected
1,1-Dichloroethene
75-35-4
2.6
5.7
9.5
Not Detected
1,2,4-Trichlorobenzene
120-82-1
9.8
43
71
Not Detected
1,2,4-Trimethyl benzene
95-63-6
1.1
7.1
12
46
1,2-Dibromoethane (EDB)
106-93-4
1.4
11
18
Not Detected
1,2-Dichlorobenzene
95-50-1
1.4
8.6
14
Not Detected
1,2-Dichloroethane
107-06-2
1.8
5.8
9.7
Not Detected
1,2-Dichloropropane
78-87-5
2.4
6.6
11
Not Detected
1,3,5-Trimethyl benzene
108-67-8
1.7
7.1
12
14
1,3-Butadiene
106-99-0
1.1
3.2
5.3
Not Detected
1,3-Dichlorobenzene
541-73-1
2.0
8.6
14
Not Detected
1,4-Dichlorobenzene
106-46-7
1.5
8.6
14
Not Detected
1,4-Dioxane
123-91-1
2.2
8.6
34
Not Detected
2,2,4-Trimethylpentane
540-84-1
0.94
6.7
11
160
2-Butanone (Methyl Ethyl Ketone)
78-93-3
3.2
17
28
37
2-Hexanone
591-78-6
3.0
24
39
Not Detected
2-Propanol
67-63-0
1.3
14
24
34
3-Chloropropene
107-05-1
2.9
7.5
30
Not Detected
4-Ethyltoluene
622-96-8
2.2
7.1
12
40
4-Methyl-2-pentanone
108-10-1
2.6
5.9
9.8
Not Detected
Acetone
67-64-1
3.2
14
57
140
Page 17 of 55

tiff' e u rof i n s
EPA METHOD TO-15 GC/MS FULL SCAN
GN7035
Client ID: SGP-5-210527
Lab ID: 2105648A-05A Date/Time Analyzed: 6/4/21 07:45 PM
Date/Time Collected: 5/27/21 02:51 PM Dilution Factor: 4.80
Media: 1 Liter Summa Canister Instrument/Filename: msda.i / a060417
Air Toxics
Compound
CAS#
MDL
(ug/m3)
LOD
(ug/m3)
Rpt. Limit
(ug/m3)
Amount
(ug/m3)
alpha-Chlorotoluene
100-44-7
2.1
7.4
12
Not Detected
Benzene
71-43-2
0.82
4.6
7.7
15
Bromodichloromethane
75-27-4
2.2
6.4
16
Not Detected
Bromoform
75-25-2
2.4
15
25
Not Detected
Bromomethane
74-83-9
5.1
22
93
Not Detected
Carbon Disulfide
75-15-0
2.6
18
30
33
Carbon Tetrachloride
56-23-5
2.3
9.1
15
Not Detected
Chlorobenzene
108-90-7
0.62
4.4
11
Not Detected
Chloroethane
75-00-3
4.1
15
25
Not Detected
Chloroform
67-66-3
1.1
4.7
12
Not Detected
Chloromethane
74-87-3
2.1
12
50
Not Detected
cis-1,2-Dichloroethene
156-59-2
3.0
5.7
9.5
Not Detected
cis-1,3-Dichloropropene
10061-01-5
2.1
6.5
11
Not Detected
Cumene
98-82-8
0.80
7.1
12
11 J
Cyclohexane
110-82-7
0.92
5.0
8.3
54
Dibromochloromethane
124-48-1
3.1
12
20
Not Detected
Ethanol
64-17-5
9.4
11
45
41 J
Ethyl Benzene
100-41-4
1.9
6.2
10
53
Freon 11
75-69-4
1.3
8.1
13
Not Detected
Freon 113
76-13-1
3.6
11
18
Not Detected
Freon 114
76-14-2
2.5
10
17
Not Detected
Freon 12
75-71-8
1.6
7.1
12
Not Detected
Heptane
142-82-5
2.6
5.9
9.8
78
Hexachlorobutadiene
87-68-3
13
61
100
Not Detected
Page 18 of 55

tiff' e u rof i n s
EPA METHOD TO-15 GC/MS FULL SCAN
GN7035
Client ID: SGP-5-210527
Lab ID: 2105648A-05A Date/Time Analyzed: 6/4/21 07:45 PM
Date/Time Collected: 5/27/21 02:51 PM Dilution Factor: 4.80
Media: 1 Liter Summa Canister Instrument/Filename: msda.i / a060417
Air Toxics
Compound
CAS#
MDL
(ug/m3)
LOD
(ug/m3)
Rpt. Limit
(ug/m3)
Amount
(ug/m3)
Hexane
110-54-3
1.7
5.1
8.4
290
m,p-Xylene
108-38-3
1.5
6.2
10
69
Methyl tert-butyl ether
1634-04-4
1.2
8.6
35
Not Detected
Methylene Chloride
75-09-2
2.4
20
83
Not Detected
o-Xylene
95-47-6
1.7
6.2
10
28
Propylbenzene
103-65-1
1.8
7.1
12
11 J
Styrene
100-42-5
1.6
6.1
10
Not Detected
Tetrachloroethene
127-18-4
2.1
9.8
16
67
Tetrahydrofuran
109-99-9
1.1
4.2
7.1
Not Detected
Toluene
108-88-3
0.59
5.4
9.0
51
trans-1,2-Dichloroethene
156-60-5
2.1
5.7
9.5
Not Detected
trans-1,3-Dichloropropene
10061-02-6
2.4
6.5
11
Not Detected
Trichloroethene
79-01-6
1.9
7.7
13
3.1 J
Vinyl Chloride
75-01-4
1.6
3.7
6.1
Not Detected
J = Estimated value.
D: Analyte not within the DoD scope of accreditation
Surrogates
CAS#
Limits
%Recovery
1,2-Dichloroethane-d4
17060-07-0
70-130
98
4-Bromofluorobenzene
460-00-4
70-130
98
Toluene-d8
2037-26-5
70-130
107
Page 19 of 55

tiff' e u rof i n s
EPA METHOD TO-15 GC/MS FULL SCAN
GN7035
Client ID: SGP-6-210527
Lab ID: 2105648A-06A Date/Time Analyzed: 6/4/21 05:32 PM
Date/Time Collected: 5/27/21 03:49 PM Dilution Factor: 2.01
Media: 1 Liter Summa Canister Instrument/Filename: msda.i / a060412
Air Toxics
Compound
CAS#
MDL
(ug/m3)
LOD
(ug/m3)
Rpt. Limit
(ug/m3)
Amount
(ug/m3)
1,1,1-Trichloroethane
71-55-6
1.0
2.2
5.5
Not Detected
1,1,2,2-Tetrachloroethane
79-34-5
0.89
4.1
6.9
Not Detected
1,1,2-Trichloroethane
79-00-5
1.2
3.3
5.5
Not Detected
1,1-Dichloroethane
75-34-3
0.72
1.6
4.1
Not Detected
1,1-Dichloroethene
75-35-4
1.1
2.4
4.0
Not Detected
1,2,4-Trichlorobenzene
120-82-1
4.1
18
30
Not Detected
1,2,4-Trimethyl benzene
95-63-6
0.48
3.0
4.9
4.7 J
1,2-Dibromoethane (EDB)
106-93-4
0.61
4.6
7.7
Not Detected
1,2-Dichlorobenzene
95-50-1
0.61
3.6
6.0
Not Detected
1,2-Dichloroethane
107-06-2
0.76
2.4
4.1
Not Detected
1,2-Dichloropropane
78-87-5
1.0
2.8
4.6
Not Detected
1,3,5-Trimethyl benzene
108-67-8
0.70
3.0
4.9
1.8 J
1,3-Butadiene
106-99-0
0.45
1.3
2.2
Not Detected
1,3-Dichlorobenzene
541-73-1
0.82
3.6
6.0
Not Detected
1,4-Dichlorobenzene
106-46-7
0.64
3.6
6.0
Not Detected
1,4-Dioxane
123-91-1
0.94
3.6
14
2.3 J
2,2,4-Trimethylpentane
540-84-1
0.39
2.8
4.7
8.5
2-Butanone (Methyl Ethyl Ketone)
78-93-3
1.3
7.1
12
58
2-Hexanone
591-78-6
1.3
9.9
16
Not Detected
2-Propanol
67-63-0
0.56
5.9
9.9
16
3-Chloropropene
107-05-1
1.2
3.1
12
Not Detected
4-Ethyltoluene
622-96-8
0.93
3.0
4.9
3.6 J
4-Methyl-2-pentanone
108-10-1
1.1
2.5
4.1
2.6 J
Acetone
67-64-1
1.4
5.7
24
80
Page 20 of 55

tiff' e u rof i n s
EPA METHOD TO-15 GC/MS FULL SCAN
GN7035
Client ID: SGP-6-210527
Lab ID: 2105648A-06A Date/Time Analyzed: 6/4/21 05:32 PM
Date/Time Collected: 5/27/21 03:49 PM Dilution Factor: 2.01
Media: 1 Liter Summa Canister Instrument/Filename: msda.i / a060412
Air Toxics
Compound
CAS#
MDL
(ug/m3)
LOD
(ug/m3)
Rpt. Limit
(ug/m3)
Amount
(ug/m3)
alpha-Chlorotoluene
100-44-7
0.90
3.1
5.2
Not Detected
Benzene
71-43-2
0.34
1.9
3.2
6.2
Bromodichloromethane
75-27-4
0.95
2.7
6.7
Not Detected
Bromoform
75-25-2
1.0
6.2
10
Not Detected
Bromomethane
74-83-9
2.1
9.4
39
Not Detected
Carbon Disulfide
75-15-0
1.1
7.5
12
1.1 J
Carbon Tetrachloride
56-23-5
0.95
3.8
6.3
Not Detected
Chlorobenzene
108-90-7
0.26
1.8
4.6
Not Detected
Chloroethane
75-00-3
1.7
6.4
11
Not Detected
Chloroform
67-66-3
0.47
2.0
4.9
Not Detected
Chloromethane
74-87-3
0.89
5.0
21
Not Detected
cis- 1,2-Dichloroethene
156-59-2
1.3
2.4
4.0
Not Detected
cis- 1,3-Dichloropropene
10061-01-5
0.87
2.7
4.6
Not Detected
Cumene
98-82-8
0.34
3.0
4.9
Not Detected
Cyclohexane
110-82-7
0.39
2.1
3.4
1.2 J
Dibromochloromethane
124-48-1
1.3
5.1
8.6
Not Detected
Ethanol
64-17-5
3.9
4.5
19
34
Ethyl Benzene
100-41-4
0.78
2.6
4.4
7.9
Freon 11
75-69-4
0.55
3.4
5.6
Not Detected
Freon 113
76-13-1
1.5
4.6
7.7
Not Detected
Freon 114
76-14-2
1.0
4.2
7.0
Not Detected
Freon 12
75-71-8
0.68
3.0
5.0
Not Detected
Heptane
142-82-5
1.1
2.5
4.1
8.1
Hexachlorobutadiene
87-68-3
5.6
26
43
Not Detected
Page 21 of 55

tiff' e u rof i n s
EPA METHOD TO-15 GC/MS FULL SCAN
GN7035
Client ID: SGP-6-210527
Lab ID: 2105648A-06A Date/Time Analyzed: 6/4/21 05:32 PM
Date/Time Collected: 5/27/21 03:49 PM Dilution Factor: 2.01
Media: 1 Liter Summa Canister Instrument/Filename: msda.i / a060412
Air Toxics
Compound
CAS#
MDL
(ug/m3)
LOD
(ug/m3)
Rpt. Limit
(ug/m3)
Amount
(ug/m3)
Hexane
110-54-3
0.72
2.1
3.5
19
m,p-Xylene
108-38-3
0.63
2.6
4.4
12
Methyl tert-butyl ether
1634-04-4
0.50
3.6
14
Not Detected
Methylene Chloride
75-09-2
1.0
8.4
35
1.0 J
o-Xylene
95-47-6
0.70
2.6
4.4
4.8
Propylbenzene
103-65-1
0.76
3.0
4.9
1.1 J
Styrene
100-42-5
0.67
2.6
4.3
Not Detected
Tetrachloroethene
127-18-4
0.88
4.1
6.8
8.2
Tetrahydrofuran
109-99-9
0.46
1.8
3.0
Not Detected
Toluene
108-88-3
0.25
2.3
3.8
17
trans-1,2-Dichloroethene
156-60-5
0.88
2.4
4.0
Not Detected
trans-1,3-Dichloropropene
10061-02-6
1.0
2.7
4.6
Not Detected
Trichloroethene
79-01-6
0.81
3.2
5.4
Not Detected
Vinyl Chloride
75-01-4
0.67
1.5
2.6
Not Detected
J = Estimated value.
D: Analyte not within the DoD scope of accreditation
Surrogates
CAS#
Limits
%Recovery
1,2-Dichloroethane-d4
17060-07-0
70-130
105
4-Bromofluorobenzene
460-00-4
70-130
99
Toluene-d8
2037-26-5
70-130
106
Page 22 of 55

tiff' e u rof i n s
EPA METHOD TO-15 GC/MS FULL SCAN
GN7035
Client ID: SGP-7-210527
Lab ID: 2105648A-07A Date/Time Analyzed: 6/4/21 05:59 PM
Date/Time Collected: 5/27/21 09:50 AM Dilution Factor: 2.27
Media: 1 Liter Summa Canister Instrument/Filename: msda.i / a060413
Air Toxics
Compound
CAS#
MDL
(ug/m3)
LOD
(ug/m3)
Rpt. Limit
(ug/m3)
Amount
(ug/m3)
1,1,1-Trichloroethane
71-55-6
1.2
2.5
6.2
Not Detected
1,1,2,2-Tetrachloroethane
79-34-5
1.0
4.7
7.8
Not Detected
1,1,2-Trichloroethane
79-00-5
1.4
3.7
6.2
Not Detected
1,1-Dichloroethane
75-34-3
0.81
1.8
4.6
Not Detected
1,1-Dichloroethene
75-35-4
1.2
2.7
4.5
Not Detected
1,2,4-Trichlorobenzene
120-82-1
4.6
20
34
Not Detected
1,2,4-Trimethyl benzene
95-63-6
0.54
3.3
5.6
2.8 J
1,2-Dibromoethane (EDB)
106-93-4
0.68
5•2
8.7
Not Detected
1,2-Dichlorobenzene
95-50-1
0.69
4.1
6.8
Not Detected
1,2-Dichloroethane
107-06-2
0.86
2.8
4.6
Not Detected
1,2-Dichloropropane
78-87-5
1.1
3.1
5.2
Not Detected
1,3,5-Trimethyl benzene
108-67-8
0.79
3.3
5.6
0.86 J
1,3-Butadiene
106-99-0
0.51
1.5
2.5
Not Detected
1,3-Dichlorobenzene
541-73-1
0.92
4.1
6.8
Not Detected
1,4-Dichlorobenzene
106-46-7
0.72
4.1
6.8
Not Detected
1,4-Dioxane
123-91-1
1.1
4.1
16
Not Detected
2,2,4-Trimethylpentane
540-84-1
0.44
3.2
5.3
10
2-Butanone (Methyl Ethyl Ketone)
78-93-3
1.5
8.0
13
23
2-Hexanone
591-78-6
1.4
11
18
Not Detected
2-Propanol
67-63-0
0.63
6.7
11
26
3-Chloropropene
107-05-1
1.4
3.6
14
Not Detected
4-Ethyltoluene
622-96-8
1.0
3.3
5.6
2.9 J
4-Methyl-2-pentanone
108-10-1
1.2
2.8
4.6
1.5 J
Acetone
67-64-1
1.5
6.5
27
120
Page 23 of 55

tiff' e u rof i n s
EPA METHOD TO-15 GC/MS FULL SCAN
GN7035
Client ID: SGP-7-210527
Lab ID: 2105648A-07A Date/Time Analyzed: 6/4/21 05:59 PM
Date/Time Collected: 5/27/21 09:50 AM Dilution Factor: 2.27
Media: 1 Liter Summa Canister Instrument/Filename: msda.i / a060413
Air Toxics
Compound
CAS#
MDL
(ug/m3)
LOD
(ug/m3)
Rpt. Limit
(ug/m3)
Amount
(ug/m3)
alpha-Chlorotoluene
100-44-7
1.0
3.5
5.9
Not Detected
Benzene
71-43-2
0.39
2.2
3.6
9.0
Bromodichloromethane
75-27-4
1.1
3.0
7.6
Not Detected
Bromoform
75-25-2
1.2
7.0
12
Not Detected
Bromomethane
74-83-9
2.4
10
44
Not Detected
Carbon Disulfide
75-15-0
1.2
8.5
14
1.3 J
Carbon Tetrachloride
56-23-5
1.1
4.3
7.1
Not Detected
Chlorobenzene
108-90-7
0.29
2•1
5.2
Not Detected
Chloroethane
75-00-3
1.9
7.2
12
Not Detected
Chloroform
67-66-3
0.53
2.2
5.5
Not Detected
Chloromethane
74-87-3
1.0
5.6
23
Not Detected
cis- 1,2-Dichloroethene
156-59-2
1.4
2.7
4.5
Not Detected
cis- 1,3-Dichloropropene
10061-01-5
0.98
3.1
5.2
Not Detected
Cumene
98-82-8
0.38
3.3
5.6
2.5 J
Cyclohexane
110-82-7
0.44
2.3
3.9
6.2
Dibromochloromethane
124-48-1
1.5
5.8
9.7
Not Detected
Ethanol
64-17-5
4.4
5.1
21
82
Ethyl Benzene
100-41-4
0.88
3.0
4.9
4.8 J
Freon 11
75-69-4
0.63
3.8
6.4
Not Detected
Freon 113
76-13-1
1.7
5.2
8.7
Not Detected
Freon 114
76-14-2
1.2
4.8
7.9
Not Detected
Freon 12
75-71-8
0.77
3.4
5.6
6.8
Heptane
142-82-5
1.2
2.8
4.6
16
Hexachlorobutadiene
87-68-3
6.4
29
48
Not Detected
Page 24 of 55

tiff' e u rof i n s
EPA METHOD TO-15 GC/MS FULL SCAN
GN7035
Client ID: SGP-7-210527
Lab ID: 2105648A-07A Date/Time Analyzed: 6/4/21 05:59 PM
Date/Time Collected: 5/27/21 09:50 AM Dilution Factor: 2.27
Media: 1 Liter Summa Canister Instrument/Filename: msda.i / a060413
Air Toxics
Compound
CAS#
MDL
(ug/m3)
LOD
(ug/m3)
Rpt. Limit
(ug/m3)
Amount
(ug/m3)
Hexane
110-54-3
0.81
2.4
4.0
39
m,p-Xylene
108-38-3
0.71
3.0
4.9
5.2
Methyl tert-butyl ether
1634-04-4
0.56
4.1
16
Not Detected
Methylene Chloride
75-09-2
1.2
9.5
39
2.0 J
o-Xylene
95-47-6
0.79
3.0
4.9
2.9 J
Propylbenzene
103-65-1
0.86
3.3
5.6
Not Detected
Styrene
100-42-5
0.76
2.9
4.8
Not Detected
Tetrachloroethene
127-18-4
0.99
4.6
7.7
18
Tetrahydrofuran
109-99-9
0.52
2.0
3.3
Not Detected
Toluene
108-88-3
0.28
2.6
4.3
6.5
trans-1,2-Dichloroethene
156-60-5
1.0
2.7
4.5
Not Detected
trans-1,3-Dichloropropene
10061-02-6
1.2
3.1
5.2
Not Detected
Trichloroethene
79-01-6
0.91
3.6
6.1
1.7 J
Vinyl Chloride
75-01-4
0.76
1.7
2.9
Not Detected
J = Estimated value.
D: Analyte not within the DoD scope of accreditation
Surrogates
CAS#
Limits
%Recovery
1,2-Dichloroethane-d4
17060-07-0
70-130
102
4-Bromofluorobenzene
460-00-4
70-130
100
Toluene-d8
2037-26-5
70-130
105
Page 25 of 55

tiff' e u rof i n s
EPA METHOD TO-15 GC/MS FULL SCAN
GN7035
Client ID: SGP-8-210527
Lab ID: 2105648A-08A Date/Time Analyzed: 6/4/21 06:25 PM
Date/Time Collected: 5/27/21 10:42 AM Dilution Factor: 2.63
Media: 1 Liter Summa Canister Instrument/Filename: msda.i / a060414
Air Toxics
Compound
CAS#
MDL
(ug/m3)
LOD
(ug/m3)
Rpt. Limit
(ug/m3)
Amount
(ug/m3)
1,1,1-Trichloroethane
71-55-6
1.4
2.9
7.2
Not Detected
1,1,2,2-Tetrachloroethane
79-34-5
1.2
5.4
9.0
Not Detected
1,1,2-Trichloroethane
79-00-5
1.6
4.3
7.2
Not Detected
1,1-Dichloroethane
75-34-3
0.94
2.1
5.3
Not Detected
1,1-Dichloroethene
75-35-4
1.4
3.1
5.2
Not Detected
1,2,4-Trichlorobenzene
120-82-1
5.4
23
39
Not Detected
1,2,4-Trimethyl benzene
95-63-6
0.62
3.9
6.5
9.4
1,2-Dibromoethane (EDB)
106-93-4
0.79
6.1
10
Not Detected
1,2-Dichlorobenzene
95-50-1
0.80
4.7
7.9
Not Detected
1,2-Dichloroethane
107-06-2
0.99
3.2
5.3
Not Detected
1,2-Dichloropropane
78-87-5
1.3
3.6
6.1
Not Detected
1,3,5-Trimethyl benzene
108-67-8
0.92
3.9
6.5
6.7
1,3-Butadiene
106-99-0
0.59
1.7
2.9
Not Detected
1,3-Dichlorobenzene
541-73-1
1.1
4.7
7.9
Not Detected
1,4-Dichlorobenzene
106-46-7
0.84
4.7
7.9
Not Detected
1,4-Dioxane
123-91-1
1.2
4.7
19
4.6 J
2,2,4-Trimethylpentane
540-84-1
0.51
3.7
6.1
1100
2-Butanone (Methyl Ethyl Ketone)
78-93-3
1.7
9.3
16
32
2-Hexanone
591-78-6
1.7
13
22
Not Detected
2-Propanol
67-63-0
0.73
7.8
13
20
3-Chloropropene
107-05-1
1.6
4.1
16
Not Detected
4-Ethyltoluene
622-96-8
1.2
3.9
6.5
8.8
4-Methyl-2-pentanone
108-10-1
1.4
3.2
5.4
Not Detected
Acetone
67-64-1
1.8
7.5
31
100
Page 26 of 55

tiff' e u rof i n s
EPA METHOD TO-15 GC/MS FULL SCAN
GN7035
Client ID: SGP-8-210527
Lab ID: 2105648A-08A Date/Time Analyzed: 6/4/21 06:25 PM
Date/Time Collected: 5/27/21 10:42 AM Dilution Factor: 2.63
Media: 1 Liter Summa Canister Instrument/Filename: msda.i / a060414
Air Toxics
Compound
CAS#
MDL
(ug/m3)
LOD
(ug/m3)
Rpt. Limit
(ug/m3)
Amount
(ug/m3)
alpha-Chlorotoluene
100-44-7
1.2
4.1
6.8
Not Detected
Benzene
71-43-2
0.45
2.5
4.2
10
Bromodichloromethane
75-27-4
1.2
3.5
8.8
Not Detected
Bromoform
75-25-2
1.3
8.2
14
Not Detected
Bromomethane
74-83-9
2.8
12
51
Not Detected
Carbon Disulfide
75-15-0
1.4
9.8
16
9.7 J
Carbon Tetrachloride
56-23-5
1.2
5.0
8.3
Not Detected
Chlorobenzene
108-90-7
0.34
2.4
6.0
Not Detected
Chloroethane
75-00-3
2.2
8.3
14
Not Detected
Chloroform
67-66-3
0.61
2.6
6.4
Not Detected
Chloromethane
74-87-3
1.2
6.5
27
Not Detected
cis- 1,2-Dichloroethene
156-59-2
1.7
3.1
5.2
Not Detected
cis- 1,3-Dichloropropene
10061-01-5
1.1
3.6
6.0
Not Detected
Cumene
98-82-8
0.44
3.9
6.5
24
Cyclohexane
110-82-7
0.50
2.7
4.5
62
Dibromochloromethane
124-48-1
1.7
6.7
11
Not Detected
Ethanol
64-17-5
5.1
5.9
25
33
Ethyl Benzene
100-41-4
1.0
3.4
5.7
15
Freon 11
75-69-4
0.73
4.4
7.4
Not Detected
Freon 113
76-13-1
2.0
6.0
10
Not Detected
Freon 114
76-14-2
1.4
5.5
9.2
Not Detected
Freon 12
75-71-8
0.90
3.9
6.5
4.8 J
Heptane
142-82-5
1.4
3.2
5.4
17
Hexachlorobutadiene
87-68-3
7.4
34
56
Not Detected
Page 27 of 55

tiff' e u rof i n s
EPA METHOD TO-15 GC/MS FULL SCAN
GN7035
Client ID: SGP-8-210527
Lab ID: 2105648A-08A Date/Time Analyzed: 6/4/21 06:25 PM
Date/Time Collected: 5/27/21 10:42 AM Dilution Factor: 2.63
Media: 1 Liter Summa Canister Instrument/Filename: msda.i / a060414
Air Toxics
Compound
CAS#
MDL
(ug/m3)
LOD
(ug/m3)
Rpt. Limit
(ug/m3)
Amount
(ug/m3)
Hexane
110-54-3
0.94
2.8
4.6
61
m,p-Xylene
108-38-3
0.82
3.4
5.7
14
Methyl tert-butyl ether
1634-04-4
0.65
4.7
19
Not Detected
Methylene Chloride
75-09-2
1.3
11
46
1.6 J
o-Xylene
95-47-6
0.91
3.4
5.7
8.0
Propylbenzene
103-65-1
0.99
3.9
6.5
2.6 J
Styrene
100-42-5
0.88
3.4
5.6
2.3 J
Tetrachloroethene
127-18-4
1.1
5.4
8.9
7.7 J
Tetrahydrofuran
109-99-9
0.61
2.3
3.9
Not Detected
Toluene
108-88-3
0.32
3.0
5.0
25
trans-1,2-Dichloroethene
156-60-5
1.2
3.1
5.2
Not Detected
trans-1,3-Dichloropropene
10061-02-6
1.3
3.6
6.0
Not Detected
Trichloroethene
79-01-6
1.0
4.2
7.1
Not Detected
Vinyl Chloride
75-01-4
0.88
2.0
3.4
Not Detected
J = Estimated value.
D: Analyte not within the DoD scope of accreditation
Surrogates
CAS#
Limits
%Recovery
1,2-Dichloroethane-d4
17060-07-0
70-130
105
4-Bromofluorobenzene
460-00-4
70-130
100
Toluene-d8
2037-26-5
70-130
106
Page 28 of 55

tiff' e u rof i n s
EPA METHOD TO-15 GC/MS
GN7035
Client ID: DUP-1
Lab ID: 2105648A-09A Date/Time Analyzed: 6/7/21 03:10 PM
Date/Time Collected: 5/28/21 12:04 PM Dilution Factor: 2.49
Media: 1 Liter Summa Canister Instrument/Filename: msd14.i / 14060715
Air Toxics
Compound
CAS#
MDL
(ug/m3)
LOD
(ug/m3)
Rpt. Limit
(ug/m3)
Amount
(ug/m3)
1,1,1-Trichloroethane
71-55-6
5.3
54
68
Not Detected
1,1,2,2-Tetrachloroethane
79-34-5
12
68
85
Not Detected
1,1,2-Trichloroethane
79-00-5
14
54
68
Not Detected
1,1-Dichloroethane
75-34-3
8.5
40
50
Not Detected
1,1-Dichloroethene
75-35-4
9.9
39
49
Not Detected
1,2,4-Trichlorobenzene
120-82-1
220
360
370
Not Detected
1,2,4-Trimethyl benzene
95-63-6
7.5
49
61
430
1,2-Dibromoethane (EDB)
106-93-4
19
76
96
Not Detected
1,2-Dichlorobenzene
95-50-1
17
60
75
Not Detected
1,2-Dichloroethane
107-06-2
8.9
40
50
Not Detected
1,2-Dichloropropane
78-87-5
18
46
58
Not Detected
1,3,5-Trimethyl benzene
108-67-8
6.5
49
61
420
1,3-Butadiene
106-99-0
13
22
28
Not Detected
1,3-Dichlorobenzene
541-73-1
13
60
75
Not Detected
1,4-Dichlorobenzene
106-46-7
14
60
75
Not Detected
1,4-Dioxane
123-91-1
21
36
180
Not Detected
2,2,4-Trimethylpentane
540-84-1
8.7
46
58
52 J
2-Butanone (Methyl Ethyl Ketone)
78-93-3
38
140
150
Not Detected
2-Hexanone
591-78-6
44
200
200
Not Detected
2-Propanol
67-63-0
20
120
120
30 J
3-Chloropropene
107-05-1
19
150
160
Not Detected
4-Ethyltoluene
622-96-8
5.9
49
61
270
4-Methyl-2-pentanone
108-10-1
28
46
51
Not Detected
Acetone
67-64-1
20
110
120
280
Page 29 of 55

tiff' e u rof i n s
EPA METHOD TO-15 GC/MS
GN7035
Client ID: DUP-1
Lab ID: 2105648A-09A Date/Time Analyzed: 6/7/21 03:10 PM
Date/Time Collected: 5/28/21 12:04 PM Dilution Factor: 2.49
Media: 1 Liter Summa Canister Instrument/Filename: msd14.i / 14060715
Air Toxics
Compound
CAS#
MDL
(ug/m3)
LOD
(ug/m3)
Rpt. Limit
(ug/m3)
Amount
(ug/m3)
alpha-Chlorotoluene
100-44-7
9.2
52
64
Not Detected
Benzene
71-43-2
3.3
32
40
100
Bromodichloromethane
75-27-4
15
67
83
Not Detected
Bromoform
75-25-2
15
100
130
Not Detected
Bromomethane
74-83-9
29
190
190
Not Detected
Carbon Disulfide
75-15-0
13
150
160
46 J
Carbon Tetrachloride
56-23-5
12
63
78
Not Detected
Chlorobenzene
108-90-7
5.7
46
57
Not Detected
Chloroethane
75-00-3
20
130
130
Not Detected
Chloroform
67-66-3
13
49
61
Not Detected
Chloromethane
74-87-3
39
99
100
Not Detected
cis- 1,2-Dichloroethene
156-59-2
13
39
49
Not Detected
cis- 1,3-Dichloropropene
10061-01-5
8.6
45
56
Not Detected
Cumene
98-82-8
6.8
49
61
280
Cyclohexane
110-82-7
17
34
43
120
Dibromochloromethane
124-48-1
16
85
110
Not Detected
Ethanol
64-17-5
36
90
94
110
Ethyl Benzene
100-41-4
8.0
43
54
280
Freon 11
75-69-4
9.4
56
70
Not Detected
Freon 113
76-13-1
21
76
95
Not Detected
Freon 114
76-14-2
22
70
87
Not Detected
Freon 12
75-71-8
17
49
62
Not Detected
Heptane
142-82-5
13
41
51
920
Hexachlorobutadiene
87-68-3
250
510
530
Not Detected
Page 30 of 55

tiff' e u rof i n s
EPA METHOD TO-15 GC/MS
GN7035
Client ID: DUP-1
Lab ID: 2105648A-09A Date/Time Analyzed: 6/7/21 03:10 PM
Date/Time Collected: 5/28/21 12:04 PM Dilution Factor: 2.49
Media: 1 Liter Summa Canister Instrument/Filename: msd14.i / 14060715
Air Toxics
Compound
CAS#
MDL
(ug/m3)
LOD
(ug/m3)
Rpt. Limit
(ug/m3)
Amount
(ug/m3)
Hexane
110-54-3
8.4
35
44
2300
m,p-Xylene
108-38-3
9.9
43
54
210
Methyl tert-butyl ether
1634-04-4
16
36
45
Not Detected
Methylene Chloride
75-09-2
30
170
170
Not Detected
o-Xylene
95-47-6
6.9
43
54
130
Propylbenzene
103-65-1
7.8
49
61
47 J
Styrene
100-42-5
9.2
42
53
Not Detected
Tetrachloroethene
127-18-4
17
68
84
Not Detected
Tetrahydrofuran
109-99-9
18
29
37
Not Detected
Toluene
108-88-3
6.1
38
47
82
trans-1,2-Dichloroethene
156-60-5
11
39
49
Not Detected
trans-1,3-Dichloropropene
10061-02-6
24
45
56
Not Detected
Trichloroethene
79-01-6
14
54
67
Not Detected
Vinyl Chloride
75-01-4
15
25
32
Not Detected
J = Estimated value.
D: Analyte not within the DoD scope of accreditation
Surrogates
CAS#
Limits
%Recovery
1,2-Dichloroethane-d4
17060-07-0
70-130
94
4-Bromofluorobenzene
460-00-4
70-130
112
Toluene-d8
2037-26-5
70-130
100
Page 31 of 55

tiff' e u rof i n s
EPA METHOD TO-15 GC/MS FULL SCAN
GN7035
Client ID: Lab Blank
Lab ID: 2105648A-10A Date/Time Analyzed: 6/4/21 02:21 PM
Date/Time Collected: NA - Not Applicable Dilution Factor: 1.00
Media: NA - Not Applicable Instrument/Filename: msda.i / a060407a
Air Toxics
Compound
CAS#
MDL
(ug/m3)
LOD
(ug/m3)
Rpt. Limit
(ug/m3)
Amount
(ug/m3)
1,1,1-Trichloroethane
71-55-6
0.53
1.1
2.7
Not Detected
1,1,2,2-Tetrachloroethane
79-34-5
0.44
2.0
3.4
Not Detected
1,1,2-Trichloroethane
79-00-5
0.62
1.6
2.7
Not Detected
1,1-Dichloroethane
75-34-3
0.36
0.81
2.0
Not Detected
1,1-Dichloroethene
75-35-4
0.55
1.2
2.0
Not Detected
1,2,4-Trichlorobenzene
120-82-1
2.0
8.9
15
Not Detected
1,2,4-Trimethyl benzene
95-63-6
0.24
1.5
2.4
Not Detected
1,2-Dibromoethane (EDB)
106-93-4
0.30
2.3
3.8
Not Detected
1,2-Dichlorobenzene
95-50-1
0.30
1.8
3.0
Not Detected
1,2-Dichloroethane
107-06-2
0.38
1.2
2.0
Not Detected
1,2-Dichloropropane
78-87-5
0.50
1.4
2.3
Not Detected
1,3,5-Trimethyl benzene
108-67-8
0.35
1.5
2.4
Not Detected
1,3-Butadiene
106-99-0
0.22
0.66
1.1
Not Detected
1,3-Dichlorobenzene
541-73-1
0.41
1.8
3.0
Not Detected
1,4-Dichlorobenzene
106-46-7
0.32
1.8
3.0
0.35 J
1,4-Dioxane
123-91-1
0.47
1.8
7.2
Not Detected
2,2,4-Trimethylpentane
540-84-1
0.20
1.4
2.3
Not Detected
2-Butanone (Methyl Ethyl Ketone)
78-93-3
0.66
3.5
5.9
Not Detected
2-Hexanone
591-78-6
0.63
4.9
8.2
Not Detected
2-Propanol
67-63-0
0.28
2.9
4.9
0.52 J
3-Chloropropene
107-05-1
0.61
1.6
6.3
Not Detected
4-Ethyltoluene
622-96-8
0.46
1.5
2.4
Not Detected
4-Methyl-2-pentanone
108-10-1
0.54
1.2
2.0
Not Detected
Acetone
67-64-1
0.67
2.8
12
Not Detected
Page 32 of 55

tiff' e u rof i n s
EPA METHOD TO-15 GC/MS FULL SCAN
GN7035
Client ID: Lab Blank
Lab ID: 2105648A-10A Date/Time Analyzed: 6/4/21 02:21 PM
Date/Time Collected: NA - Not Applicable Dilution Factor: 1.00
Media: NA - Not Applicable Instrument/Filename: msda.i / a060407a
Air Toxics
Compound
CAS#
MDL
(ug/m3)
LOD
(ug/m3)
Rpt. Limit
(ug/m3)
Amount
(ug/m3)
alpha-Chlorotoluene
100-44-7
0.44
1.6
2.6
Not Detected
Benzene
71-43-2
0.17
0.96
1.6
Not Detected
Bromodichloromethane
75-27-4
0.47
1.3
3.4
Not Detected
Bromoform
75-25-2
0.51
3.1
5.2
Not Detected
Bromomethane
74-83-9
1.1
4.7
19
Not Detected
Carbon Disulfide
75-15-0
0.55
3.7
6.2
Not Detected
Carbon Tetrachloride
56-23-5
0.47
1.9
3.1
Not Detected
Chlorobenzene
108-90-7
0.13
0.92
2.3
Not Detected
Chloroethane
75-00-3
0.86
3.2
5.3
Not Detected
Chloroform
67-66-3
0.23
0.98
2.4
Not Detected
Chloromethane
74-87-3
0.44
2.5
10
Not Detected
cis- 1,2-Dichloroethene
156-59-2
0.63
1.2
2.0
Not Detected
cis- 1,3-Dichloropropene
10061-01-5
0.43
1.4
2.3
Not Detected
Cumene
98-82-8
0.17
1.5
2.4
Not Detected
Cyclohexane
110-82-7
0.19
1.0
1.7
Not Detected
Dibromochloromethane
124-48-1
0.65
2.6
4.2
Not Detected
Ethanol
64-17-5
1.9
2.3
9.4
Not Detected
Ethyl Benzene
100-41-4
0.39
1.3
2.2
Not Detected
Freon 11
75-69-4
0.28
1.7
2.8
Not Detected
Freon 113
76-13-1
0.75
2.3
3.8
Not Detected
Freon 114
76-14-2
0.52
2.1
3.5
Not Detected
Freon 12
75-71-8
0.34
1.5
2.5
Not Detected
Heptane
142-82-5
0.54
1.2
2.0
Not Detected
Hexachlorobutadiene
87-68-3
2.8
13
21
Not Detected
Page 33 of 55

tiff' e u rof i n s
EPA METHOD TO-15 GC/MS FULL SCAN
GN7035
Client ID: Lab Blank
Lab ID: 2105648A-10A Date/Time Analyzed: 6/4/21 02:21 PM
Date/Time Collected: NA - Not Applicable Dilution Factor: 1.00
Media: NA - Not Applicable Instrument/Filename: msda.i / a060407a
Air Toxics
Compound
CAS#
MDL
(ug/m3)
LOD
(ug/m3)
Rpt. Limit
(ug/m3)
Amount
(ug/m3)
Hexane
110-54-3
0.36
1.0
1.8
Not Detected
m,p-Xylene
108-38-3
0.31
1.3
2.2
Not Detected
Methyl tert-butyl ether
1634-04-4
0.25
1.8
7.2
Not Detected
Methylene Chloride
75-09-2
0.51
4.2
17
Not Detected
o-Xylene
95-47-6
0.35
1.3
2.2
Not Detected
Propylbenzene
103-65-1
0.38
1.5
2.4
Not Detected
Styrene
100-42-5
0.34
1.3
2.1
Not Detected
Tetrachloroethene
127-18-4
0.44
2.0
3.4
1.9 J
Tetrahydrofuran
109-99-9
0.23
0.88
1.5
Not Detected
Toluene
108-88-3
0.12
1.1
1.9
Not Detected
trans-1,2-Dichloroethene
156-60-5
0.44
1.2
2.0
Not Detected
trans-1,3-Dichloropropene
10061-02-6
0.51
1.4
2.3
Not Detected
Trichloroethene
79-01-6
0.40
1.6
2.7
0.95 J
Vinyl Chloride
75-01-4
0.33
0.77
1.3
Not Detected
J = Estimated value.
D: Analyte not within the DoD scope of accreditation
Surrogates
CAS#
Limits
%Recovery
1,2-Dichloroethane-d4
17060-07-0
70-130
93
4-Bromofluorobenzene
460-00-4
70-130
98
Toluene-d8
2037-26-5
70-130
108
Page 34 of 55

tiff' e u rof i n s
EPA METHOD TO-15 GC/MS
GN7035
Client ID: Lab Blank
Lab ID: 2105648A-10B Date/Time Analyzed: 6/7/21 10:20 AM
Date/Time Collected: NA - Not Applicable Dilution Factor: 1.00
Media: NA - Not Applicable Instrument/Filename: msd14.i / 14060707c
Air Toxics
Compound
CAS#
MDL
(ug/m3)
LOD
(ug/m3)
Rpt. Limit
(ug/m3)
Amount
(ug/m3)
1,1,1-Trichloroethane
71-55-6
2.1
22
27
Not Detected
1,1,2,2-Tetrachloroethane
79-34-5
4.9
27
34
Not Detected
1,1,2-Trichloroethane
79-00-5
5.4
22
27
Not Detected
1,1-Dichloroethane
75-34-3
3.4
16
20
Not Detected
1,1-Dichloroethene
75-35-4
4.0
16
20
Not Detected
1,2,4-Trichlorobenzene
120-82-1
88
140
150
Not Detected
1,2,4-Trimethyl benzene
95-63-6
3.0
20
24
Not Detected
1,2-Dibromoethane (EDB)
106-93-4
7.6
31
38
Not Detected
1,2-Dichlorobenzene
95-50-1
6.7
24
30
Not Detected
1,2-Dichloroethane
107-06-2
3.6
16
20
Not Detected
1,2-Dichloropropane
78-87-5
7.2
18
23
Not Detected
1,3,5-Trimethylbenzene
108-67-8
2.6
20
24
Not Detected
1,3-Butadiene
106-99-0
5.2
8.8
11
Not Detected
1,3-Dichlorobenzene
541-73-1
5.3
24
30
Not Detected
1,4-Dichlorobenzene
106-46-7
5.6
24
30
Not Detected
1,4-Dioxane
123-91-1
8.6
14
72
Not Detected
2,2,4-Trimethylpentane
540-84-1
3.5
19
23
Not Detected
2-Butanone (Methyl Ethyl Ketone)
78-93-3
15
57
59
Not Detected
2-Hexanone
591-78-6
18
79
82
Not Detected
2-Propanol
67-63-0
7.9
47
49
Not Detected
3-Chloropropene
107-05-1
7.8
60
63
Not Detected
4-Ethyltoluene
622-96-8
2.4
20
24
Not Detected
4-Methyl-2-pentanone
108-10-1
11
18
20
Not Detected
Acetone
67-64-1
8.1
46
48
Not Detected
Page 35 of 55

tiff' e u rof i n s
EPA METHOD TO-15 GC/MS
GN7035
Client ID: Lab Blank
Lab ID: 2105648A-10B Date/Time Analyzed: 6/7/21 10:20 AM
Date/Time Collected: NA - Not Applicable Dilution Factor: 1.00
Media: NA - Not Applicable Instrument/Filename: msd14.i / 14060707c
Air Toxics
Compound
CAS#
MDL
(ug/m3)
LOD
(ug/m3)
Rpt. Limit
(ug/m3)
Amount
(ug/m3)
alpha-Chlorotoluene
100-44-7
3.7
21
26
Not Detected
Benzene
71-43-2
1.3
13
16
Not Detected
Bromodichloromethane
75-27-4
6.1
27
34
Not Detected
Bromoform
75-25-2
6.0
41
52
Not Detected
Bromomethane
74-83-9
12
75
78
Not Detected
Carbon Disulfide
75-15-0
5.2
60
62
Not Detected
Carbon Tetrachloride
56-23-5
4.8
25
31
Not Detected
Chlorobenzene
108-90-7
2.3
18
23
Not Detected
Chloroethane
75-00-3
7.9
51
53
Not Detected
Chloroform
67-66-3
5.2
20
24
Not Detected
Chloromethane
74-87-3
16
40
41
Not Detected
cis-1,2-Dichloroethene
156-59-2
5.1
16
20
Not Detected
cis-1,3-Dichloropropene
10061-01-5
3.4
18
23
Not Detected
Cumene
98-82-8
2.8
20
24
Not Detected
Cyclohexane
110-82-7
6.7
14
17
Not Detected
Dibromochloromethane
124-48-1
6.3
34
42
Not Detected
Ethanol
64-17-5
15
36
38
Not Detected
Ethyl Benzene
100-41-4
3.2
17
22
Not Detected
Freon 11
75-69-4
3.8
22
28
Not Detected
Freon 113
76-13-1
8.6
31
38
Not Detected
Freon 114
76-14-2
8.9
28
35
Not Detected
Freon 12
75-71-8
6.9
20
25
Not Detected
Heptane
142-82-5
5.4
16
20
Not Detected
Hexachlorobutadiene
87-68-3
99
200
210
Not Detected
Page 36 of 55

tiff' e u rof i n s
EPA METHOD TO-15 GC/MS
GN7035
Client ID: Lab Blank
Lab ID: 2105648A-10B Date/Time Analyzed: 6/7/21 10:20 AM
Date/Time Collected: NA - Not Applicable Dilution Factor: 1.00
Media: NA - Not Applicable Instrument/Filename: msd14.i / 14060707c
Air Toxics
Compound
CAS#
MDL
(ug/m3)
LOD
(ug/m3)
Rpt. Limit
(ug/m3)
Amount
(ug/m3)
Hexane
110-54-3
3.4
14
18
Not Detected
m,p-Xylene
108-38-3
4.0
17
22
Not Detected
Methyl tert-butyl ether
1634-04-4
6.4
14
18
Not Detected
Methylene Chloride
75-09-2
12
67
69
Not Detected
o-Xylene
95-47-6
2.8
17
22
Not Detected
Propylbenzene
103-65-1
3.1
20
24
Not Detected
Styrene
100-42-5
3.7
17
21
Not Detected
Tetrachloroethene
127-18-4
7.0
27
34
Not Detected
Tetrahydrofuran
109-99-9
7.1
12
15
Not Detected
Toluene
108-88-3
2.4
15
19
Not Detected
trans-1,2-Dichloroethene
156-60-5
4.3
16
20
Not Detected
trans-1,3-Dichloropropene
10061-02-6
9.7
18
23
Not Detected
Trichloroethene
79-01-6
5.8
21
27
Not Detected
Vinyl Chloride
75-01-4
6.0
10
13
Not Detected
D: Analyte not within the DoD scope of accreditation.
Surrogates
CAS#
Limits
%Recovery
1,2-Dichloroethane-d4
17060-07-0
70-130
96
4-Bromofluorobenzene
460-00-4
70-130
92
Toluene-d8
2037-26-5
70-130
104
Page 37 of 55

tiff' e u rof i n s
EPA METHOD TO-15 GC/MS FULL SCAN
GN7035
Client ID: CCV
Lab ID: 2105648A-11A Date/Time Analyzed: 6/4/21 12:50 PM
Date/Time Collected: NA - Not Applicable Dilution Factor: 1.00
Media: NA - Not Applicable Instrument/Filename: msda.i / a060404
Air Toxics
Compound
CAS#
%Recovery
1,1,1-Trichloroethane
71-55-6
98
1,1,2,2-Tetrachloroethane
79-34-5
106
1,1,2-Trichloroethane
79-00-5
101
1,1-Dichloroethane
75-34-3
101
1,1-Dichloroethene
75-35-4
93
1,2,4-Trichlorobenzene
120-82-1
108
1,2,4-Trimethyl benzene
95-63-6
114
1,2-Dibromoethane (EDB)
106-93-4
100
1,2-Dichlorobenzene
95-50-1
104
1,2-Dichloroethane
107-06-2
88
1,2-Dichloropropane
78-87-5
110
1,3,5-Trimethyl benzene
108-67-8
111
1,3-Butadiene
106-99-0
108
1,3-Dichlorobenzene
541-73-1
102
1,4-Dichlorobenzene
106-46-7
102
1,4-Dioxane
123-91-1
110
2,2,4-Trimethylpentane
540-84-1
130
2-Butanone (Methyl Ethyl Ketone)
78-93-3
101
2-Hexanone
591-78-6
124
2-Propanol
67-63-0
106
3-Chloropropene
107-05-1
95
4-Ethyltoluene
622-96-8
108
4-Methyl-2-pentanone
108-10-1
130
Acetone
67-64-1
95
Page 38 of 55

tiff' e u rof i n s
EPA METHOD TO-15 GC/MS FULL SCAN
GN7035
Client ID: CCV
Lab ID: 2105648A-11A Date/Time Analyzed: 6/4/21 12:50 PM
Date/Time Collected: NA - Not Applicable Dilution Factor: 1.00
Media: NA - Not Applicable Instrument/Filename: msda.i / a060404
Air Toxics
Compound
CAS#
%Recovery
alpha-Chlorotoluene
100-44-7
118
Benzene
71-43-2
102
Bromodichloromethane
75-27-4
104
Bromoform
75-25-2
108
Bromomethane
74-83-9
89
Carbon Disulfide
75-15-0
94
Carbon Tetrachloride
56-23-5
100
Chlorobenzene
108-90-7
101
Chloroethane
75-00-3
96
Chloroform
67-66-3
100
Chloromethane
74-87-3
102
cis- 1,2-Dichloroethene
156-59-2
106
cis- 1,3-Dichloropropene
10061-01-5
114
Cumene
98-82-8
108
Cyclohexane
110-82-7
111
Dibromochloromethane
124-48-1
101
Ethanol
64-17-5
110
Ethyl Benzene
100-41-4
104
Freon 11
75-69-4
82
Freon 113
76-13-1
88
Freon 114
76-14-2
94
Freon 12
75-71-8
92
Heptane
142-82-5
109
Hexachlorobutadiene
87-68-3
115
Page 39 of 55

tiff' e u rof i n s
EPA METHOD TO-15 GC/MS FULL SCAN
GN7035
Client ID: CCV
Lab ID: 2105648A-11A Date/Time Analyzed: 6/4/21 12:50 PM
Date/Time Collected: NA - Not Applicable Dilution Factor: 1.00
Media: NA - Not Applicable Instrument/Filename: msda.i / a060404
Air Toxics
Compound
CAS#
%Recovery
Hexane
110-54-3
114
m,p-Xylene
108-38-3
111
Methyl tert-butyl ether
1634-04-4
93
Methylene Chloride
75-09-2
106
o-Xylene
95-47-6
116
Propylbenzene
103-65-1
108
Styrene
100-42-5
116
Tetrachloroethene
127-18-4
95
Tetrahydrofuran
109-99-9
132 Q
Toluene
108-88-3
110
trans-1,2-Dichloroethene
156-60-5
97
trans-1,3-Dichloropropene
10061-02-6
102
Trichloroethene
79-01-6
102
Vinyl Chloride
75-01-4
102
Q = Exceeds Quality Control limits.
D: Analyte not within the DoD scope of accreditation
Surrogates
CAS#
Limits
%Recovery
1,2-Dichloroethane-d4
17060-07-0
70-130
96
4-Bromofluorobenzene
460-00-4
70-130
101
Toluene-d8
2037-26-5
70-130
108
Page 40 of 55

tiff' e u rof i n s
EPA METHOD TO-15 GC/MS
GN7035
Client ID: CCV
Lab ID: 2105648A-11 B Date/Time Analyzed: 6/7/21 07:56 AM
Date/Time Collected: NA - Not Applicable Dilution Factor: 1.00
Media: NA - Not Applicable Instrument/Filename: msd14.i / 14060702
Air Toxics
Compound
CAS#
%Recovery
1,1,1-Trichloroethane
71-55-6
104
1,1,2,2-Tetrachloroethane
79-34-5
102
1,1,2-Trichloroethane
79-00-5
102
1,1-Dichloroethane
75-34-3
101
1,1-Dichloroethene
75-35-4
100
1,2,4-Trichlorobenzene
120-82-1
101
1,2,4-Trimethyl benzene
95-63-6
114
1,2-Dibromoethane (EDB)
106-93-4
108
1,2-Dichlorobenzene
95-50-1
106
1,2-Dichloroethane
107-06-2
96
1,2-Dichloropropane
78-87-5
97
1,3,5-Trimethyl benzene
108-67-8
114
1,3-Butadiene
106-99-0
95
1,3-Dichlorobenzene
541-73-1
108
1,4-Dichlorobenzene
106-46-7
107
1,4-Dioxane
123-91-1
120
2,2,4-Trimethylpentane
540-84-1
102
2-Butanone (Methyl Ethyl Ketone)
78-93-3
104
2-Hexanone
591-78-6
109
2-Propanol
67-63-0
104
3-Chloropropene
107-05-1
106
4-Ethyltoluene
622-96-8
121
4-Methyl-2-pentanone
108-10-1
116
Acetone
67-64-1
99
Page 41 of 55

tiff' e u rof i n s
EPA METHOD TO-15 GC/MS
GN7035
Client ID: CCV
Lab ID: 2105648A-11 B Date/Time Analyzed: 6/7/21 07:56 AM
Date/Time Collected: NA - Not Applicable Dilution Factor: 1.00
Media: NA - Not Applicable Instrument/Filename: msd14.i / 14060702
Air Toxics
Compound
CAS#
%Recovery
alpha-Chlorotoluene
100-44-7
121
Benzene
71-43-2
104
Bromodichloromethane
75-27-4
100
Bromoform
75-25-2
106
Bromomethane
74-83-9
119
Carbon Disulfide
75-15-0
99
Carbon Tetrachloride
56-23-5
104
Chlorobenzene
108-90-7
101
Chloroethane
75-00-3
102
Chloroform
67-66-3
105
Chloromethane
74-87-3
92
cis- 1,2-Dichloroethene
156-59-2
103
cis- 1,3-Dichloropropene
10061-01-5
103
Cumene
98-82-8
113
Cyclohexane
110-82-7
107
Dibromochloromethane
124-48-1
104
Ethanol
64-17-5
102
Ethyl Benzene
100-41-4
107
Freon 11
75-69-4
105
Freon 113
76-13-1
108
Freon 114
76-14-2
100
Freon 12
75-71-8
98
Heptane
142-82-5
105
Hexachlorobutadiene
87-68-3
97
Page 42 of 55

tiff' e u rof i n s
EPA METHOD TO-15 GC/MS
GN7035
Client ID: CCV
Lab ID: 2105648A-11 B Date/Time Analyzed: 6/7/21 07:56 AM
Date/Time Collected: NA - Not Applicable Dilution Factor: 1.00
Media: NA - Not Applicable Instrument/Filename: msd14.i / 14060702
Air Toxics
Compound
CAS#
%Recovery
Hexane
110-54-3
105
m,p-Xylene
108-38-3
111
Methyl tert-butyl ether
1634-04-4
112
Methylene Chloride
75-09-2
99
o-Xylene
95-47-6
104
Propylbenzene
103-65-1
108
Styrene
100-42-5
117
Tetrachloroethene
127-18-4
100
Tetrahydrofuran
109-99-9
97
Toluene
108-88-3
100
trans-1,2-Dichloroethene
156-60-5
104
trans-1,3-Dichloropropene
10061-02-6
113
Trichloroethene
79-01-6
101
Vinyl Chloride
75-01-4
102
D: Analyte not within the DoD scope of accreditation.
Surrogates
CAS#
Limits
%Recovery
1,2-Dichloroethane-d4
17060-07-0
70-130
98
4-Bromofluorobenzene
460-00-4
70-130
109
Toluene-d8
2037-26-5
70-130
103
Page 43 of 55

tiff' e u rof i n s
EPA METHOD TO-15 GC/MS FULL SCAN
GN7035
Client ID: LCS
Lab ID: 2105648A-12A Date/Time Analyzed: 6/4/21 01:15 PM
Date/Time Collected: NA - Not Applicable Dilution Factor: 1.00
Media: NA - Not Applicable Instrument/Filename: msda.i / a060405
Air Toxics
Compound
CAS#
%Recovery
1,1,1-Trichloroethane
71-55-6
94
1,1,2,2-Tetrachloroethane
79-34-5
109
1,1,2-Trichloroethane
79-00-5
103
1,1-Dichloroethane
75-34-3
94
1,1-Dichloroethene
75-35-4
89
1,2,4-Trichlorobenzene
120-82-1
121
1,2,4-Trimethyl benzene
95-63-6
116
1,2-Dibromoethane (EDB)
106-93-4
101
1,2-Dichlorobenzene
95-50-1
106
1,2-Dichloroethane
107-06-2
88
1,2-Dichloropropane
78-87-5
110
1,3,5-Trimethyl benzene
108-67-8
111
1,3-Butadiene
106-99-0
103
1,3-Dichlorobenzene
541-73-1
104
1,4-Dichlorobenzene
106-46-7
105
1,4-Dioxane
123-91-1
110
2,2,4-Trimethylpentane
540-84-1
124
2-Butanone (Methyl Ethyl Ketone)
78-93-3
97
2-Hexanone
591-78-6
126
2-Propanol
67-63-0
104
3-Chloropropene
107-05-1
90
4-Ethyltoluene
622-96-8
112
4-Methyl-2-pentanone
108-10-1
133 Q
Acetone
67-64-1
91
% Recovery is calculated using unrounded analytical results.
Page 44 of 55

tiff' e u rof i n s
EPA METHOD TO-15 GC/MS FULL SCAN
GN7035
Client ID: LCS
Lab ID: 2105648A-12A Date/Time Analyzed: 6/4/21 01:15 PM
Date/Time Collected: NA - Not Applicable Dilution Factor: 1.00
Media: NA - Not Applicable Instrument/Filename: msda.i / a060405
Air Toxics
Compound
CAS#
%Recovery
alpha-Chlorotoluene
100-44-7
130
Benzene
71-43-2
102
Bromodichloromethane
75-27-4
103
Bromoform
75-25-2
111
Bromomethane
74-83-9
81
Carbon Disulfide
75-15-0
89
Carbon Tetrachloride
56-23-5
97
Chlorobenzene
108-90-7
103
Chloroethane
75-00-3
90
Chloroform
67-66-3
94
Chloromethane
74-87-3
97
cis- 1,2-Dichloroethene
156-59-2
101
cis- 1,3-Dichloropropene
10061-01-5
113
Cumene
98-82-8
108
Cyclohexane
110-82-7
107
Dibromochloromethane
124-48-1
101
Ethanol
64-17-5
93
Ethyl Benzene
100-41-4
105
Freon 11
75-69-4
78
Freon 113
76-13-1
85
Freon 114
76-14-2
87
Freon 12
75-71-8
86
Heptane
142-82-5
112
Hexachlorobutadiene
87-68-3
128
% Recovery is calculated using unrounded analytical results.
Page 45 of 55

tiff' e u rof i n s
EPA METHOD TO-15 GC/MS FULL SCAN
GN7035
Client ID: LCS
Lab ID: 2105648A-12A Date/Time Analyzed: 6/4/21 01:15 PM
Date/Time Collected: NA - Not Applicable Dilution Factor: 1.00
Media: NA - Not Applicable Instrument/Filename: msda.i / a060405
Air Toxics
Compound
CAS#
%Recovery
Hexane
110-54-3
108
m,p-Xylene
108-38-3
114
Methyl tert-butyl ether
1634-04-4
91
Methylene Chloride
75-09-2
97
o-Xylene
95-47-6
118
Propylbenzene
103-65-1
110
Styrene
100-42-5
118
Tetrachloroethene
127-18-4
94
Tetrahydrofuran
109-99-9
124
Toluene
108-88-3
109
trans-1,2-Dichloroethene
156-60-5
93
trans-1,3-Dichloropropene
10061-02-6
104
Trichloroethene
79-01-6
101
Vinyl Chloride
75-01-4
98
Q = Exceeds Quality Control limits.
D: Analyte not within the DoD scope of accreditation
Surrogates
CAS#
Limits
%Recovery
1,2-Dichloroethane-d4
17060-07-0
70-130
93
4-Bromofluorobenzene
460-00-4
70-130
101
Toluene-d8
2037-26-5
70-130
110
% Recovery is calculated using unrounded analytical results.
Page 46 of 55

tiff' e u rof i n s
EPA METHOD TO-15 GC/MS FULL SCAN
GN7035
Client ID: LCSD
Lab ID: 2105648A-12AA Date/Time Analyzed: 6/4/21 01:40 PM
Date/Time Collected: NA - Not Applicable Dilution Factor: 1.00
Media: NA - Not Applicable Instrument/Filename: msda.i / a060406
Air Toxics
Compound
CAS#
%Recovery
1,1,1-Trichloroethane
71-55-6
94
1,1,2,2-Tetrachloroethane
79-34-5
108
1,1,2-Trichloroethane
79-00-5
102
1,1-Dichloroethane
75-34-3
94
1,1-Dichloroethene
75-35-4
91
1,2,4-Trichlorobenzene
120-82-1
128
1,2,4-Trimethyl benzene
95-63-6
117
1,2-Dibromoethane (EDB)
106-93-4
102
1,2-Dichlorobenzene
95-50-1
106
1,2-Dichloroethane
107-06-2
86
1,2-Dichloropropane
78-87-5
109
1,3,5-Trimethyl benzene
108-67-8
110
1,3-Butadiene
106-99-0
107
1,3-Dichlorobenzene
541-73-1
105
1,4-Dichlorobenzene
106-46-7
106
1,4-Dioxane
123-91-1
108
2,2,4-Trimethylpentane
540-84-1
126
2-Butanone (Methyl Ethyl Ketone)
78-93-3
97
2-Hexanone
591-78-6
126
2-Propanol
67-63-0
107
3-Chloropropene
107-05-1
92
4-Ethyltoluene
622-96-8
114
4-Methyl-2-pentanone
108-10-1
129
Acetone
67-64-1
91
% Recovery is calculated using unrounded analytical results.
Page 47 of 55

tiff' e u rof i n s
EPA METHOD TO-15 GC/MS FULL SCAN
GN7035
Client ID: LCSD
Lab ID: 2105648A-12AA Date/Time Analyzed: 6/4/21 01:40 PM
Date/Time Collected: NA - Not Applicable Dilution Factor: 1.00
Media: NA - Not Applicable Instrument/Filename: msda.i / a060406
Air Toxics
Compound
CAS#
%Recovery
alpha-Chlorotoluene
100-44-7
131 Q
Benzene
71-43-2
100
Bromodichloromethane
75-27-4
102
Bromoform
75-25-2
111
Bromomethane
74-83-9
83
Carbon Disulfide
75-15-0
90
Carbon Tetrachloride
56-23-5
96
Chlorobenzene
108-90-7
102
Chloroethane
75-00-3
90
Chloroform
67-66-3
95
Chloromethane
74-87-3
99
cis- 1,2-Dichloroethene
156-59-2
102
cis- 1,3-Dichloropropene
10061-01-5
115
Cumene
98-82-8
108
Cyclohexane
110-82-7
109
Dibromochloromethane
124-48-1
101
Ethanol
64-17-5
92
Ethyl Benzene
100-41-4
106
Freon 11
75-69-4
78
Freon 113
76-13-1
86
Freon 114
76-14-2
89
Freon 12
75-71-8
89
Heptane
142-82-5
108
Hexachlorobutadiene
87-68-3
135 Q
% Recovery is calculated using unrounded analytical results.
Page 48 of 55

tiff' e u rof i n s
EPA METHOD TO-15 GC/MS FULL SCAN
GN7035
Client ID: LCSD
Lab ID: 2105648A-12AA Date/Time Analyzed: 6/4/21 01:40 PM
Date/Time Collected: NA - Not Applicable Dilution Factor: 1.00
Media: NA - Not Applicable Instrument/Filename: msda.i / a060406
Air Toxics
Compound
CAS#
%Recovery
Hexane
110-54-3
111
m,p-Xylene
108-38-3
115
Methyl tert-butyl ether
1634-04-4
93
Methylene Chloride
75-09-2
98
o-Xylene
95-47-6
119
Propylbenzene
103-65-1
110
Styrene
100-42-5
118
Tetrachloroethene
127-18-4
95
Tetrahydrofuran
109-99-9
125
Toluene
108-88-3
107
trans-1,2-Dichloroethene
156-60-5
94
trans-1,3-Dichloropropene
10061-02-6
104
Trichloroethene
79-01-6
100
Vinyl Chloride
75-01-4
100
Q = Exceeds Quality Control limits.
D: Analyte not within the DoD scope of accreditation
Surrogates
CAS#
Limits
%Recovery
1,2-Dichloroethane-d4
17060-07-0
70-130
94
4-Bromofluorobenzene
460-00-4
70-130
101
Toluene-d8
2037-26-5
70-130
109
% Recovery is calculated using unrounded analytical results.
Page 49 of 55

tiff' e u rof i n s
EPA METHOD TO-15 GC/MS
GN7035
Client ID: LCS
Lab ID: 2105648A-12B Date/Time Analyzed: 6/7/21 08:51 AM
Date/Time Collected: NA - Not Applicable Dilution Factor: 1.00
Media: NA - Not Applicable Instrument/Filename: msd14.i / 14060704
Air Toxics
Compound
CAS#
%Recovery
1,1,1-Trichloroethane
71-55-6
103
1,1,2,2-Tetrachloroethane
79-34-5
98
1,1,2-Trichloroethane
79-00-5
99
1,1-Dichloroethane
75-34-3
99
1,1-Dichloroethene
75-35-4
99
1,2,4-Trichlorobenzene
120-82-1
100
1,2,4-Trimethyl benzene
95-63-6
105
1,2-Dibromoethane (EDB)
106-93-4
102
1,2-Dichlorobenzene
95-50-1
102
1,2-Dichloroethane
107-06-2
98
1,2-Dichloropropane
78-87-5
96
1,3,5-Trimethyl benzene
108-67-8
108
1,3-Butadiene
106-99-0
95
1,3-Dichlorobenzene
541-73-1
107
1,4-Dichlorobenzene
106-46-7
106
1,4-Dioxane
123-91-1
111
2,2,4-Trimethylpentane
540-84-1
94
2-Butanone (Methyl Ethyl Ketone)
78-93-3
104
2-Hexanone
591-78-6
95
2-Propanol
67-63-0
102
3-Chloropropene
107-05-1
98
4-Ethyltoluene
622-96-8
113
4-Methyl-2-pentanone
108-10-1
107
Acetone
67-64-1
106
% Recovery is calculated using unrounded analytical results.
Page 50 of 55

tiff' e u rof i n s
EPA METHOD TO-15 GC/MS
GN7035
Client ID: LCS
Lab ID: 2105648A-12B Date/Time Analyzed: 6/7/21 08:51 AM
Date/Time Collected: NA - Not Applicable Dilution Factor: 1.00
Media: NA - Not Applicable Instrument/Filename: msd14.i / 14060704
Air Toxics
Compound
CAS#
%Recovery
alpha-Chlorotoluene
100-44-7
111
Benzene
71-43-2
101
Bromodichloromethane
75-27-4
97
Bromoform
75-25-2
101
Bromomethane
74-83-9
110
Carbon Disulfide
75-15-0
99
Carbon Tetrachloride
56-23-5
100
Chlorobenzene
108-90-7
101
Chloroethane
75-00-3
102
Chloroform
67-66-3
101
Chloromethane
74-87-3
92
cis- 1,2-Dichloroethene
156-59-2
100
cis- 1,3-Dichloropropene
10061-01-5
102
Cumene
98-82-8
102
Cyclohexane
110-82-7
98
Dibromochloromethane
124-48-1
99
Ethanol
64-17-5
83
Ethyl Benzene
100-41-4
99
Freon 11
75-69-4
104
Freon 113
76-13-1
107
Freon 114
76-14-2
97
Freon 12
75-71-8
95
Heptane
142-82-5
94
Hexachlorobutadiene
87-68-3
104
% Recovery is calculated using unrounded analytical results.
Page 51 of 55

tiff' e u rof i n s
EPA METHOD TO-15 GC/MS
GN7035
Client ID: LCS
Lab ID: 2105648A-12B Date/Time Analyzed: 6/7/21 08:51 AM
Date/Time Collected: NA - Not Applicable Dilution Factor: 1.00
Media: NA - Not Applicable Instrument/Filename: msd14.i / 14060704
Air Toxics
Compound
CAS#
%Recovery
Hexane
110-54-3
98
m,p-Xylene
108-38-3
106
Methyl tert-butyl ether
1634-04-4
107
Methylene Chloride
75-09-2
97
o-Xylene
95-47-6
98
Propylbenzene
103-65-1
103
Styrene
100-42-5
103
Tetrachloroethene
127-18-4
101
Tetrahydrofuran
109-99-9
96
Toluene
108-88-3
97
trans-1,2-Dichloroethene
156-60-5
100
trans-1,3-Dichloropropene
10061-02-6
110
Trichloroethene
79-01-6
101
Vinyl Chloride
75-01-4
101
D: Analyte not within the DoD scope of accreditation.
Surrogates
CAS#
Limits
%Recovery
1,2-Dichloroethane-d4
17060-07-0
70-130
95
4-Bromofluorobenzene
460-00-4
70-130
106
Toluene-d8
2037-26-5
70-130
99
% Recovery is calculated using unrounded analytical results.
Page 52 of 55

tiff' e u rof i n s
EPA METHOD TO-15 GC/MS
GN7035
Client ID: LCSD
Lab ID: 2105648A-12BB Date/Time Analyzed: 6/7/21 09:26 AM
Date/Time Collected: NA - Not Applicable Dilution Factor: 1.00
Media: NA - Not Applicable Instrument/Filename: msd14.i / 14060705
Air Toxics
Compound
CAS#
%Recovery
1,1,1-Trichloroethane
71-55-6
105
1,1,2,2-Tetrachloroethane
79-34-5
97
1,1,2-Trichloroethane
79-00-5
101
1,1-Dichloroethane
75-34-3
100
1,1-Dichloroethene
75-35-4
101
1,2,4-Trichlorobenzene
120-82-1
88
1,2,4-Trimethyl benzene
95-63-6
99
1,2-Dibromoethane (EDB)
106-93-4
102
1,2-Dichlorobenzene
95-50-1
101
1,2-Dichloroethane
107-06-2
96
1,2-Dichloropropane
78-87-5
96
1,3,5-Trimethyl benzene
108-67-8
107
1,3-Butadiene
106-99-0
93
1,3-Dichlorobenzene
541-73-1
105
1,4-Dichlorobenzene
106-46-7
105
1,4-Dioxane
123-91-1
109
2,2,4-Trimethylpentane
540-84-1
95
2-Butanone (Methyl Ethyl Ketone)
78-93-3
104
2-Hexanone
591-78-6
94
2-Propanol
67-63-0
102
3-Chloropropene
107-05-1
99
4-Ethyltoluene
622-96-8
110
4-Methyl-2-pentanone
108-10-1
108
Acetone
67-64-1
100
% Recovery is calculated using unrounded analytical results.
Page 53 of 55

tiff' e u rof i n s
EPA METHOD TO-15 GC/MS
GN7035
Client ID: LCSD
Lab ID: 2105648A-12BB Date/Time Analyzed: 6/7/21 09:26 AM
Date/Time Collected: NA - Not Applicable Dilution Factor: 1.00
Media: NA - Not Applicable Instrument/Filename: msd14.i / 14060705
Air Toxics
Compound
CAS#
%Recovery
alpha-Chlorotoluene
100-44-7
106
Benzene
71-43-2
101
Bromodichloromethane
75-27-4
98
Bromoform
75-25-2
101
Bromomethane
74-83-9
98
Carbon Disulfide
75-15-0
101
Carbon Tetrachloride
56-23-5
99
Chlorobenzene
108-90-7
100
Chloroethane
75-00-3
101
Chloroform
67-66-3
103
Chloromethane
74-87-3
95
cis- 1,2-Dichloroethene
156-59-2
101
cis- 1,3-Dichloropropene
10061-01-5
96
Cumene
98-82-8
101
Cyclohexane
110-82-7
103
Dibromochloromethane
124-48-1
100
Ethanol
64-17-5
100
Ethyl Benzene
100-41-4
100
Freon 11
75-69-4
107
Freon 113
76-13-1
108
Freon 114
76-14-2
100
Freon 12
75-71-8
91
Heptane
142-82-5
94
Hexachlorobutadiene
87-68-3
104
% Recovery is calculated using unrounded analytical results.
Page 54 of 55

tiff' e u rof i n s
EPA METHOD TO-15 GC/MS
GN7035
Client ID: LCSD
Lab ID: 2105648A-12BB Date/Time Analyzed: 6/7/21 09:26 AM
Date/Time Collected: NA - Not Applicable Dilution Factor: 1.00
Media: NA - Not Applicable Instrument/Filename: msd14.i / 14060705
Air Toxics
Compound
CAS#
%Recovery
Hexane
110-54-3
98
m,p-Xylene
108-38-3
101
Methyl tert-butyl ether
1634-04-4
95
Methylene Chloride
75-09-2
99
o-Xylene
95-47-6
96
Propylbenzene
103-65-1
101
Styrene
100-42-5
104
Tetrachloroethene
127-18-4
101
Tetrahydrofuran
109-99-9
98
Toluene
108-88-3
96
trans-1,2-Dichloroethene
156-60-5
100
trans-1,3-Dichloropropene
10061-02-6
98
Trichloroethene
79-01-6
104
Vinyl Chloride
75-01-4
101
D: Analyte not within the DoD scope of accreditation.
Surrogates
CAS#
Limits
%Recovery
1,2-Dichloroethane-d4
17060-07-0
70-130
100
4-Bromofluorobenzene
460-00-4
70-130
105
Toluene-d8
2037-26-5
70-130
100
% Recovery is calculated using unrounded analytical results.
Page 55 of 55

tiff eurofins
Air Toxics
6/8/2021
Mr. Michael Wang
GeoSyntec Consultants
2501 Blue Ridge Road
Suite 430
Raleigh NC 27607
Project Name: GN7035
Project #: GN7035
Workorder #: 2105648B
Dear Mr. Michael Wang
The following report includes the data for the above referenced project for sample(s)
received on 5/29/2021 at Eurofins Air Toxics LLC.
The data and associated QC analyzed by Modified ASTM D-1946 are compliant with
the project requirements or laboratory criteria with the exception of the deviations noted
in the attached case narrative.
Thank you for choosing Eurofins Air Toxics LLC. for your air analysis needs. Eurofins Air
Toxics Inc. is committed to providing accurate data of the highest quality. Please feel free
to contact the Project Manager: Brian Whittaker at 916-985-1000 if you have any
questions regarding the data in this report.
Regards,
Brian Whittaker
Project Manager
Eurotlns Air Toy ics, LLC
180 Blue Ravine Road, Suite 8
FoISomr CA 95630
T 916-985-1000
F 916-351-8279
www.airtoxics.com
Page 1 of 17

%% eurofins
Air Toxics
WORK ORDER #: 2405648B
Work
Order Summary
CLIENT:
Mr. Michael Wang
BILL TO: Mr. Matthew Jenny
GeoSyntec Consultants
GeoSyntec Consultants
2501 Blue Ridge Road
2501 Blue Ridge Road
Suite 430
Suite 430
Raleigh, NC 27607
Raleigh, NC 27607
PHONE:
919-870-0576
P.O. # 127000521
FAX:
PROJECT # GN7035 GN7035
DATE RECEIVED:
05/29/2021
CONTACT: Brian Whittaker
DATE COMPLETED:
06/08/2021
RECEIPT
FINAL
FRACTION #
NAME
TEST VAC./PRES.
PRESSURE
01A
SGP-1-210528
Modified ASTM D-1946 4.3 "Hg
9.7 psi
02A
SGP-2-210527
Modified ASTM D-1946 7.1 "Hg
9.9 psi
03A
SGP-3-210528
Modified ASTM D-1946 4.9 "Hg
10 psi
04A
SGP-4-210527
Modified ASTM D-1946 6.3 "Hg
10 psi
05A
SGP-5-210527
Modified ASTM D-1946 9 "Hg
10 psi
06A
SGP-6-210527
Modified ASTM D-1946 4.9 "Hg
10 psi
07A
SGP-7-210527
Modified ASTM D-1946 7.8 "Hg
10 psi
08A
SGP-8-210527
Modified ASTM D-1946 11 "Hg
9.8 psi
09A
DUP-1
Modified ASTM D-1946 9.8 "Hg
10 psi
10A
Lab Blank
Modified ASTM D-1946 NA
NA
11A
CCV
Modified ASTM D-1946 NA
NA
12A
LCS
Modified ASTM D-1946 NA
NA
12AA
LCSD
Modified ASTM D-1946 NA
NA
CERTIFIED BY: r DATE:
Technical Director
06/08/21
Certification numbers: AZ Licensure AZ0775, FL NELAP — E87680, LA NELAP — 02089, NH NELAP - 209220, NJ NELAP - CA016,
NY NELAP - 11291, TX NELAP - T104704434-20-16, UT NELAP — CA009332020-12, VA NELAP - 10615, WA NELAP - C935
Name of Accreditation Body: NELAP/ORELAP (Oregon Environmental Laboratory Accreditation Program)
Accreditation number: CA300005-014, Effective date: 10/18/2020, Expiration date: 10/17/2021.
Eurofins Air Toxics, LLC certifies that the test results contained in this report meet all requirements of the NELAC standards
This report shall not be reproduced, except in full, without the written approval ofEurofins Air Toxics, LLC.
180 BLUE RAVINE ROAD, SUITE B FOLSOM, CA - 95630
[phone] . [phone] . FAX [phone]
Page 2 of 17

%% eurofins
Air Toxics
LABORATORY NARRATIVE
Modified ASTM D-1946
GeoSyntec Consultants
Workorder# 2105648B
Nine 1 Liter Summa Canister samples were received on May 29, 2021. The laboratory performed
analysis via Modified ASTM Method D-1946 for Methane and fixed gases in air using GC/FID or
GC/TCD. The method involves direct injection of 1.0 mL of sample.
On the analytical column employed for this analysis, Oxygen coelutes with Argon. The corresponding
peak is quantitated as Oxygen.
Method modifications taken to run these samples are summarized in the table below. Specific project
requirements may over -ride the EATL modifications.
Requirement
ASTMD-1946
ATL Modifications
Calibration
A single point
A minimum of 5-point calibration curve is performed.
calibration is performed
Quantitation is based on average Response Factor.
using a reference
standard closely
matching the
composition of the
unknown.
Reference Standard
The composition of any
The standards used by ATL are blended to a >/= 95%
reference standard must
accuracy.
be known to within
0.01 mol % for any
component.
Sample Injection Volume
Components whose
The sample container is connected directly to a fixed
concentrations are in
volume sample loop of 1.0 mL on the GC. Linear range is
excess of 5 % should
defined by the calibration curve. Bags are loaded by
not be analyzed by
vacuum.
using sample volumes
greater than 0.5 mL.
Normalization
Normalize the mole
Results are not normalized. The sum of the reported
percent values by
values can differ from 100% by as much as 15%, either
multiplying each value
due to analytical variability or an unusual sample matrix.
by 100 and dividing by
the sum of the original
values. The sum of the
original values should
not differ from 100%
by more than 1.0%.
Precision
Precision requirements
Duplicates should agree within 25% RPD for detections >
established at each
5 X's the RL.
concentration level.
Receiving Notes
The Chain of Custody (COC) information for sample SGP-2-210527 did not match the entry on the
sample tag with regard to sample identification. The information on the sample tag was used to
Page 3 of 17

tiff eurofins
Air Toxics
process and report the sample.
The Chain of Custody (COC) information for sample SGP-3-210528 did not match the entry on the
sample tag with regard to sample identification. The information on the COC was used to process and
report the sample.
Analytical Notes
As per project specific client request the laboratory has reported estimated values for target compound
hits that are below the Reporting Limit but greater than the Method Detection Limit.
Definition of Data Qualifying Flats
Seven qualifiers may have been used on the data analysis sheets and indicate as follows:
B - Compound present in laboratory blank greater than reporting limit.
J - Estimated value.
E - Exceeds instrument calibration range.
S - Saturated peak.
Q - Exceeds quality control limits.
U - Compound analyzed for but not detected above the detection limit.
M - Reported value may be biased due to apparent matrix interferences.
File extensions may have been used on the data analysis sheets and indicates
as follows:
a -File was requantified
b-File was quantified by a second column and detector
rl-File was requantified for the purpose of reissue
Page 4 of 17

tiff' e u rof i n s
MODIFIED NATURAL GAS ANALYSIS BY ASTM D-1946
GN7035
Client ID: SGP-1-210528
Lab ID: 210564813-01A Date/Time Analyzed: 6/4/21 10:00 AM
Date/Time Collected: 5/28/21 10:42 AM Dilution Factor: 1.94
Media: 1 Liter Summa Canister Instrument/Filename: gc10.i / 10060406
Air Toxics
MDL
LOD
Rpt. Limit
Amount
Compound
CAS#
N
N
N
N
Carbon Dioxide
124-38-9
0.0019
0.0074
0.019
12
Methane
74-82-8
0.000056
0.00011
0.00019
62
Oxygen
7782-44-7
0.013
0.013
0.19
0.70
Page 5 of 17

tiff' e u rof i n s
MODIFIED NATURAL GAS ANALYSIS BY ASTM D-1946
GN7035
Client ID: SGP-2-210527
Lab ID: 210564813-02A Date/Time Analyzed: 6/4/21 10:24 AM
Date/Time Collected: 5/27/21 05:56 PM Dilution Factor: 2.20
Media: 1 Liter Summa Canister Instrument/Filename: gc10.i / 10060407
Air Toxics
MDL
LOD
Rpt. Limit
Amount
Compound
CAS#
N
N
N
N
Carbon Dioxide
124-38-9
0.0022
0.0084
0.022
13
Methane
74-82-8
0.000064
0.00013
0.00022
27
Oxygen
7782-44-7
0.014
0.014
0.22
0.98
Page 6 of 17

tiff' e u rof i n s
MODIFIED NATURAL GAS ANALYSIS BY ASTM D-1946
GN7035
Client ID: SGP-3-210528
Lab ID: 210564813-03A Date/Time Analyzed: 6/4/21 10:50 AM
Date/Time Collected: 5/28/21 11:40 AM Dilution Factor: 2.01
Media: 1 Liter Summa Canister Instrument/Filename: gc10.i / 10060408
Air Toxics
MDL
LOD
Rpt. Limit
Amount
Compound
CAS#
N
N
N
N
Carbon Dioxide
124-38-9
0.0020
0.0076
0.020
16
Methane
74-82-8
0.000058
0.00012
0.00020
64
Oxygen
7782-44-7
0.013
0.013
0.20
3.0
Page 7 of 17

tiff' e u rof i n s
MODIFIED NATURAL GAS ANALYSIS BY ASTM D-1946
GN7035
Client ID: SGP-4-210527
Lab ID: 210564813-04A Date/Time Analyzed: 6/4/21 11:15 AM
Date/Time Collected: 5/27/21 04:40 PM Dilution Factor: 2.13
Media: 1 Liter Summa Canister Instrument/Filename: gc10.i / 10060409
Air Toxics
MDL
LOD
Rpt. Limit
Amount
Compound
CAS#
N
N
N
N
Carbon Dioxide
124-38-9
0.0021
0.0081
0.021
18
Methane
74-82-8
0.000062
0.00012
0.00021
26
Oxygen
7782-44-7
0.014
0.014
0.21
0.83
Page 8 of 17

tiff' e u rof i n s
MODIFIED NATURAL GAS ANALYSIS BY ASTM D-1946
GN7035
Client ID: SGP-5-210527
Lab ID: 210564813-05A Date/Time Analyzed: 6/4/21 11:41 AM
Date/Time Collected: 5/27/21 02:51 PM Dilution Factor: 2.40
Media: 1 Liter Summa Canister Instrument/Filename: gc10.i / 10060410
Air Toxics
MDL
LOD
Rpt. Limit
Amount
Compound
CAS#
N
N
N
N
Carbon Dioxide
124-38-9
0.0024
0.0091
0.024
17
Methane
74-82-8
0.000070
0.00014
0.00024
27
Oxygen
7782-44-7
0.016
0.016
0.24
0.71
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MODIFIED NATURAL GAS ANALYSIS BY ASTM D-1946
GN7035
Client ID: SGP-6-210527
Lab ID: 210564813-06A Date/Time Analyzed: 6/4/21 12:14 PM
Date/Time Collected: 5/27/21 03:49 PM Dilution Factor: 2.01
Media: 1 Liter Summa Canister Instrument/Filename: gc10.i / 10060411
Air Toxics
MDL
LOD
Rpt. Limit
Amount
Compound
CAS#
N
N
N
N
Carbon Dioxide
124-38-9
0.0020
0.0076
0.020
18
Methane
74-82-8
0.000058
0.00012
0.00020
8.6
Oxygen
7782-44-7
0.013
0.013
0.20
0.57
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tiff' e u rof i n s
MODIFIED NATURAL GAS ANALYSIS BY ASTM D-1946
GN7035
Client ID: SGP-7-210527
Lab ID: 210564813-07A Date/Time Analyzed: 6/4/21 12:37 PM
Date/Time Collected: 5/27/21 09:50 AM Dilution Factor: 2.27
Media: 1 Liter Summa Canister Instrument/Filename: gc10.i / 10060412
Air Toxics
MDL
LOD
Rpt. Limit
Amount
Compound
CAS#
N
N
N
N
Carbon Dioxide
124-38-9
0.0023
0.0086
0.023
6.1
Methane
74-82-8
0.000066
0.00013
0.00023
2.3
Oxygen
7782-44-7
0.015
0.015
0.23
1.6
Page 11 of 17

tiff' e u rof i n s
MODIFIED NATURAL GAS ANALYSIS BY ASTM D-1946
GN7035
Client ID: SGP-8-210527
Lab ID: 210564813-08A Date/Time Analyzed: 6/4/21 01:02 PM
Date/Time Collected: 5/27/21 10:42 AM Dilution Factor: 2.63
Media: 1 Liter Summa Canister Instrument/Filename: gc10.i / 10060413
Air Toxics
MDL
LOD
Rpt. Limit
Amount
Compound
CAS#
N
N
N
N
Carbon Dioxide
124-38-9
0.0026
0.010
0.026
9.9
Methane
74-82-8
0.000076
0.00015
0.00026
2.1
Oxygen
7782-44-7
0.017
0.017
0.26
1.6
Page 12 of 17

tiff' e u rof i n s
MODIFIED NATURAL GAS ANALYSIS BY ASTM D-1946
GN7035
Client ID: DUP-1
Lab ID: 210564813-09A Date/Time Analyzed: 6/4/21 01:33 PM
Date/Time Collected: 5/28/21 12:04 PM Dilution Factor: 2.49
Media: 1 Liter Summa Canister Instrument/Filename: gc10.i / 10060414
Air Toxics
MDL
LOD
Rpt. Limit
Amount
Compound
CAS#
N
N
N
N
Carbon Dioxide
124-38-9
0.0025
0.0095
0.025
15
Methane
74-82-8
0.000072
0.00014
0.00025
58
Oxygen
7782-44-7
0.016
0.016
0.25
4.2
Page 13 of 17

tiff' e u rof i n s
MODIFIED NATURAL GAS ANALYSIS BY ASTM D-1946
GN7035
Client ID: Lab Blank
Lab ID: 210564813-10A Date/Time Analyzed: 6/4/21 09:32 AM
Date/Time Collected: NA - Not Applicable Dilution Factor: 1.00
Media: NA - Not Applicable Instrument/Filename: gc10.i / 10060405
Air Toxics
MDL
LOD
Rpt. Limit
Amount
Compound
CAS#
N
N
N
N
Carbon Dioxide
124-38-9
0.0010
0.0038
0.010
Not Detected
Methane
74-82-8
0.000029
0.000058
0.00010
Not Detected
Oxygen
7782-44-7
0.0066
0.0066
0.10
Not Detected
Page 14 of 17

tiff' e u rof i n s
MODIFIED NATURAL GAS ANALYSIS BY ASTM D-1946
GN7035
Client ID: CCV
Lab ID: 210564813-11A Date/Time Analyzed: 6/3/21 10:21 PM
Date/Time Collected: NA - Not Applicable Dilution Factor: 1.00
Media: NA - Not Applicable Instrument/Filename: gc10.i / 10060402
Air Toxics
Compound CAS# %Recovery
Carbon Dioxide 124-38-9 100
Methane 74-82-8 97
Oxygen 7782-44-7 96
Page 15 of 17

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MODIFIED NATURAL GAS ANALYSIS BY ASTM D-1946
GN7035
Client ID: LCS
Lab ID: 210564813-12A Date/Time Analyzed: 6/4/21 08:41 AM
Date/Time Collected: NA - Not Applicable Dilution Factor: 1.00
Media: NA - Not Applicable Instrument/Filename: gc10.i / 10060403
Air Toxics
Compound CAS# %Recovery
Carbon Dioxide 124-38-9 99
Methane 74-82-8 97
Oxygen 7782-44-7 96
% Recovery is calculated using unrounded analytical results.
Page 16 of 17

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MODIFIED NATURAL GAS ANALYSIS BY ASTM D-1946
GN7035
Client ID: LCSD
Lab ID: 2105648B-12AA Date/Time Analyzed: 6/4/21 07:34 PM
Date/Time Collected: NA - Not Applicable Dilution Factor: 1.00
Media: NA - Not Applicable Instrument/Filename: gc10.i / 10060428
Air Toxics
Compound CAS# %Recovery
Carbon Dioxide 124-38-9 99
Methane 74-82-8 97
Oxygen 7782-44-7 96
% Recovery is calculated using unrounded analytical results.
Page 17 of 17

ATTACHMENT C
Soil Analytical Laboratory Report

urofins
Environment Testing
America
ANALYTICAL REPORT
Eurofins TestAmerica, Savannah
5102 LaRoche Avenue
Savannah, GA 31404
Tel: [phone]
Laboratory Job ID: 680-199936-1
Client Project/Site: Kettler - Wilmington, NC
r:
Geosyntec Consultants, Inc.
2501 Blue Ridge Rd.
Suite 430
Raleigh, North Carolina 27607
Attn: Brandon Peach
Authorized for release by:
611612021 4:50:51 PM
John Andros, Project Manager 1
[phone]
[e-mail]
The test results in this report meet all 2003 NELAC, 2009 TNI, and 2016 TNI requirements for
accredited parameters, exceptions are noted in this report. This report may not be reproduced
except in full, and with written approval from the laboratory. For questions please contact the
Project Manager at the e-mail address or telephone number listed on this page.
This report has been electronically signed and authorized by the signatory. Electronic signature is
intended to be the legally binding equivalent of a traditionally handwritten signature.
Results relate only to the items tested and the sample(s) as received by the laboratory.

Definitions/Glossary
Client: Geosyntec Consultants, Inc.
Project/Site: Kettler - Wilmington, NC
Qualifiers
GC/MS VOA
Qualifier Qualifier Description
*+ LCS and/or LCSD is outside acceptance limits, high biased.
J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value.
U Indicates the analyte was analyzed for but not detected.
GUMS Semi VOA
Qualifier Qualifier Description
E Result exceeded calibration range.
F1 MS and/or MSD recovery exceeds control limits.
F2 MS/MSD RPD exceeds control limits
J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value.
U Indicates the analyte was analyzed for but not detected.
GC VOA
Qualifier Qualifier Description
U Indicates the analyte was analyzed for but not detected.
GC Semi VOA
F
Job ID: 680-199936-1
Qualifier Qualifier Description
4 MS, MSD: The analyte present in the original sample is greater than 4 times the matrix spike concentration; therefore, control limits are not
applicable.
B Compound was found in the blank and sample.
E Result exceeded calibration range.
S1+ Surrogate recovery exceeds control limits, high biased.
HPLC/IC
Qualifier Qualifier Description
J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value.
U Indicates the analyte was analyzed for but not detected.
Metals
Qualifier Qualifier Description
4 MS, MSD: The analyte present in the original sample is greater than 4 times the matrix spike concentration; therefore, control limits are not
applicable.
F1 MS and/or MSD recovery exceeds control limits.
J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value.
U Indicates the analyte was analyzed for but not detected.
Glossary
Abbreviation These commonly used abbreviations may or may not be present in this report.
a Listed under the "D" column to designate that the result is reported on a dry weight basis
%R Percent Recovery
CFL Contains Free Liquid
CFU Colony Forming Unit
CNF Contains No Free Liquid
DER Duplicate Error Ratio (normalized absolute difference)
Dil Fac Dilution Factor
DL Detection Limit (DoD/DOE)
DL, RA, RE, IN Indicates a Dilution, Re -analysis, Re -extraction, or additional Initial metals/anion analysis of the sample
DLC Decision Level Concentration (Radiochemistry)
EDL Estimated Detection Limit (Dioxin)
LOD Limit of Detection (DoD/DOE)
LOQ Limit of Quantitation (DoD/DOE)
MCL EPA recommended "Maximum Contaminant Level'
MDA Minimum Detectable Activity (Radiochemistry)
MDC Minimum Detectable Concentration (Radiochemistry)
MDL Method Detection Limit
Eurofins TestAmerica, Savannah
Page 2 of 45 6/16/2021

Definitions/Glossary
Client: Geosyntec Consultants, Inc.
Project/Site: Kettler - Wilmington, NC
Job ID: 680-199936-1
U
Glossary (Continued)
Abbreviation
These commonly used abbreviations may or may not be present in this report.
ML
Minimum Level (Dioxin)
MPN
Most Probable Number
MQL
Method Quantitation Limit
NC
Not Calculated
ND
Not Detected at the reporting limit (or MDL or EDL if shown)
NEG
Negative / Absent
POS
Positive / Present
PQL
Practical Quantitation Limit
PRES
Presumptive
QC
Quality Control
RER
Relative Error Ratio (Radiochemistry)
RL
Reporting Limit or Requested Limit (Radiochemistry)
RPD
Relative Percent Difference, a measure of the relative difference between two points
TEF
Toxicity Equivalent Factor (Dioxin)
TEQ
Toxicity Equivalent Quotient (Dioxin)
TNTC
Too Numerous To Count
Eurofins TestAmerica, Savannah
Page 3 of 45 6/16/2021

Sample Summary
Client: Geosyntec Consultants, Inc.
Project/Site: Kettler - Wilmington, NC
Job ID: 680-199936-1
Lab Sample ID Client Sample ID Matrix Collected Received Asset ID
680-199936-1 Test Pit - 3 Soil 06/08/21 11:40 06/10/21 09:45
680-199936-2 Test Pit - 4 Soil 06/08/21 12:00 06/10/21 09:45
Eurofins TestAmerica, Savannah
Page 4 of 45 6/16/2021

Case Narrative
Client: Geosyntec Consultants, Inc.
Project/Site: Kettler - Wilmington, NC
Job ID: 680-199936-1
Laboratory: Eurofins TestAmerica, Savannah
Narrative
Job Narrative
680-199936-1
Comments
No additional comments.
Job ID: 680-199936-1
Receipt
The samples were received on 6/10/2021 9:45 AM. Unless otherwise noted below, the samples arrived in good condition, and where
required, properly preserved and on ice. The temperature of the cooler at receipt was 0.40 C.
GC/MS VOA
Method 8260D: The initial calibration verification (ICV) result for batch 680-668353 was above the upper control limit. Sample results were
non -detects, and have been reported as qualified data.
Method 8260D: The continuing calibration verification (CCV) associated with batch 680-672515 recovered outside control limits for the
following analyte(s): Dichlorodifluoromethane, 2-Hexanone, 2-Butanone (MEK), Acetone, Chloromethane and Methyl acetate . These
analytes have been identified as a poor performing analyte when analyzed using this method; therefore, re-extraction/re-analysis was not
performed. These results have been reported and qualified.
(CCVIS 680-672515/2)
Method 8260D: The laboratory control sample and/or the laboratory control sample duplicate (LCS/LCSD) for analytical batch 680-672515
recovered outside control limits for the following analyte(s): Chloromethane. Chloromethane has been identified as a poor performing
analyte when analyzed using this method; therefore, re-extraction/re-analysis was not performed. These results have been reported and
qualified.
Method 8260D: The laboratory control sample (LCS) and / or laboratory control sample duplicate (LCSD) for analytical batch 680-672839
recovered outside control limits for the following analytes: Chloromethane. These analytes were biased high in the LCS and were not
detected in the associated samples; therefore, the data have been reported.
Method 8260D: The minimum response factor (RF) criteria for the continuing calibration verification (CCV) analyzed in batch 680-672839
was outside criteria for the following analyte(s): Dichlorodifluoromethane, Acetone, Chloromethane, 2-Butanone. As indicated in the
reference method, sample analysis may proceed; however, any detection or non -detection for the affected analyte(s) is considered
estimated.
Method 8260D: The following sample was diluted due to the nature of the sample matrix: Test Pit - 4 (680-199936-2). Elevated reporting
limits (RLs) are provided.
No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page.
GC/MS Semi VOA
Method 8270E LL: The minimum response factor (RF) criteria for the continuing calibration verification (CCV) analyzed in batch
680-672617 was outside criteria for the following analyte(s): Bis(2-chloroethyl)ether and Bis(2-chloroethoxy)methane. A CCV standard at
or below the reporting limit (RL) was analyzed with the affected samples and found to be acceptable. As indicated in the reference
method, sample analysis may proceed; however, any detection or non -detection for the affected analyte(s) is considered estimated.
Method 8270E LL: The method blank for preparation batch 680-672582 and analytical batch 680-672617 contained Di-n-butyl phthalate
above the method detection limit (MDL). Associated samples were not re -analyzed because results were less than the reporting limit (RL)
OR practical quantitation limit (PQL).
Method 8270E LL: 3,3'-Dichlorobenzidine is flagged with an E because the spike concentration for the LCS is outside of the calibration
range.
(LCS 680-672582/8-A)
Method 8270E LL: The matrix spike / matrix spike duplicate (MS/MSD) recoveries for preparation batch 680-672582 and analytical batch
Eurofins TestAmerica, Savannah
Page 5 of 45 6/16/2021

Case Narrative C
Client: Geosyntec Consultants, Inc. Job ID: 680-199936-1
Project/Site: Kettler - Wilmington, NC
Job ID: 680-199936-1 (Continued)
Laboratory: Eurofins TestAmerica, Savannah (Continued)
680-672617 were outside control limits. Sample matrix interference and/or non -homogeneity are suspected because the associated ,
laboratory control sample (LCS) recovery was within acceptance limits.
Method 8270E LL: The following samples were diluted due to the nature of the sample matrix: Test Pit - 3 (680-199936-1), Test Pit - 4
(680-199936-2), (680-199936-A-1-H MS) and (680-199936-A-1-1 MSD). Elevated reporting limits (RLs) are provided.
No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page
HPLC/IC
No analytical or quality issues were noted, other than those described in the Definitions/Glossary page.
GC Semi VOA L
Method 8015D: The matrix spike / matrix spike duplicate (MS/MSD) recoveries for preparation batch 680-672583 and analytical batch
680-672713 were outside control limits. Sample matrix interference and/or non -homogeneity are suspected because the associated
laboratory control sample (LCS) recovery was within acceptance limits.
Method 8015D: Surrogate recovery was outside acceptance limits for the following matrix spike/matrix spike duplicate (MS/MSD) samples:
(680-199936-A-1-M MS) and (680-199936-A-1-N MSD). The parent sample's surrogate recovery was within limits. The MS/MSD sample
has been qualified and reported.
Method 8015D: The method blank for preparation batch 680-672583 and analytical batch 680-672713 contained Diesel Range Organics
[C10-C28] above the reporting limit (RL). Associated samples were not re -extracted and/or re -analyzed because results were greater than
10X the value found in the method blank.
No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page.
Metals
No analytical or quality issues were noted, other than those described in the Definitions/Glossary page.
General Chemistry
No analytical or quality issues were noted, other than those described in the Definitions/Glossary page.
Organic Prep
No analytical or quality issues were noted, other than those described in the Definitions/Glossary page.
VOA Prep
No analytical or quality issues were noted, other than those described in the Definitions/Glossary page.
Eurofins TestAmerica, Savannah
Page 6 of 45 6/16/2021

Client Sample Results
Client: Geosyntec Consultants, Inc.
Job ID: 680-199936-1
Project/Site: Kettler - Wilmington, NC
Client Sample ID: Test Pit - 3
Lab Sample
ID: 680-199936-1
Date Collected: 06/08/21 11:40
Matrix: Soil
Date Received: 06/10/21 09:45
Percent Solids:
82.2
Method: 8260D - Volatile Organic Compounds by GC/MS
Analyte
Result
Qualifier
RL
MDL
Unit
D
Prepared
Analyzed
Dil Fac
Acetone
0.26
0.050
0.011
mg/Kg
*
06/10/21 11:43
06/12/21 15:13
1
Benzene
0.00072
U
0.0050
0.00072
mg/Kg
06/10/21 11:43
06/12/21 15:13
1
Bromoform
0.0015
U
0.0050
0.0015
mg/Kg
06/10/21 11:43
06/12/21 15:13
1
Bromomethane
0.0015
U
0.0050
0.0015
mg/Kg
06/10/21 11:43
06/12/21 15:13
1
2-Butanone (MEK)
0.036
0.025
0.0024
mg/Kg
0
06/10/21 11:43
06/12/21 15:13
1
Carbon disulfide
0.0013
J
0.0050
0.0011
mg/Kg
0
06/10/21 11:43
06/12/21 15:13
1
Carbon tetrachloride
0.00082
U
0.0050
0.00082
mg/Kg
*
06/10/21 11:43
06/12/21 15:13
1
Chlorobenzene
0.00095
U
0.0050
0.00095
mg/Kg
*
06/10/21 11:43
06/12/21 15:13
1
Chlorodibromomethane
0.0017
U
0.0050
0.0017
mg/Kg
*
06/10/21 11:43
06/12/21 15:13
1
Chloroethane
0.0027
U
0.0050
0.0027
mg/Kg
06/10/21 11:43
06/12/21 15:13
1
Chloroform
0.0011
U
0.0050
0.0011
mg/Kg
06/10/21 11:43
06/12/21 15:13
1
Chloromethane
0.00099
U+
0.0050
0.00099
mg/Kg
06/10/21 11:43
06/12/21 15:13
1
cis-1,2-Dichloroethene
0.0014
U
0.0050
0.0014
mg/Kg
*
06/10/21 11:43
06/12/21 15:13
1
cis-1,3-Dichloropropene
0.00082
U
0.0050
0.00082
mg/Kg
*
06/10/21 11:43
06/12/21 15:13
1
1,2-Dibromo-3-Chloropropane
0.0044
U
0.0099
0.0044
mg/Kg
*
06/10/21 11:43
06/12/21 15:13
1
1,2-Dibromoethane
0.0015
U
0.0050
0.0015
mg/Kg
*
06/10/21 11:43
06/12/21 15:13
1
1,2-Dichlorobenzene
0.0013
U
0.0050
0.0013
mg/Kg
*
06/10/21 11:43
06/12/21 15:13
1
1,3-Dichlorobenzene
0.0016
U
0.0050
0.0016
mg/Kg
*
06/10/21 11:43
06/12/21 15:13
1
1,4-Dichlorobenzene
0.00073
U
0.0050
0.00073
mg/Kg
06/10/21 11:43
06/12/21 15:13
1
Dichlorobromomethane
0.00096
U
0.0050
0.00096
mg/Kg
06/10/21 11:43
06/12/21 15:13
1
Dichlorodifluoromethane
0.00093
U
0.0050
0.00093
mg/Kg
06/10/21 11:43
06/12/21 15:13
1
1,1-Dichloroethane
0.0011
U
0.0050
0.0011
mg/Kg
*
06/10/21 11:43
06/12/21 15:13
1
1,2-Dichloroethane
0.0011
U
0.0050
0.0011
mg/Kg
*
06/10/21 11:43
06/12/21 15:13
1
1,1-Dichloroethene
0.0015
U
0.0050
0.0015
mg/Kg
*
06/10/21 11:43
06/12/21 15:13
1
1,2-Dichloropropane
0.00085
U
0.0050
0.00085
mg/Kg
*
06/10/21 11:43
06/12/21 15:13
1
Ethylbenzene
0.0013
U
0.0050
0.0013
mg/Kg
*
06/10/21 11:43
06/12/21 15:13
1
2-Hexanone
0.0033
U
0.025
0.0033
mg/Kg
*
06/10/21 11:43
06/12/21 15:13
1
Isopropyl benzene
0.0019
J
0.0050
0.0019
mg/Kg
*
06/10/21 11:43
06/12/21 15:13
1
Methyl acetate
0.0050
U
0.025
0.0050
mg/Kg
*
06/10/21 11:43
06/12/21 15:13
1
Methylene Chloride
0.00097
U
0.0050
0.00097
mg/Kg
*
06/10/21 11:43
06/12/21 15:13
1
4-Methyl-2-pentanone (MIBK)
0.0042
U
0.025
0.0042
mg/Kg
*
06/10/21 11:43
06/12/21 15:13
1
Methyl tert-butyl ether
0.00099
U
0.0050
0.00099
mg/Kg
*
06/10/21 11:43
06/12/21 15:13
1
Styrene
0.00092
U
0.0050
0.00092
mg/Kg
*
06/10/21 11:43
06/12/21 15:13
1
1,1,2,2-Tetrachloroethane
0.0016
U
0.0050
0.0016
mg/Kg
06/10/21 11:43
06/12/21 15:13
1
Tetrachloroethene
0.0019
U
0.0050
0.0019
mg/Kg
06/10/21 11:43
06/12/21 15:13
1
Toluene
0.00083
U
0.0050
0.00083
mg/Kg
06/10/21 11:43
06/12/21 15:13
1
trans-1,2-Dichloroethene
0.00062
U
0.0050
0.00062
mg/Kg
06/10/21 11:43
06/12/21 15:13
1
trans- 1,3-Dichloropropene
0.00086
U
0.0050
0.00086
mg/Kg
06/10/21 11:43
06/12/21 15:13
1
1,2,4-Trichlorobenzene
0.00088
U
0.0050
0.00088
mg/Kg
06/10/21 11:43
06/12/21 15:13
1
1,1,1-Trichloroethane
0.00058
U
0.0050
0.00058
mg/Kg
06/10/21 11:43
06/12/21 15:13
1
1,1,2-Trichloroethane
0.0013
U
0.0050
0.0013
mg/Kg
06/10/21 11:43
06/12/21 15:13
1
Trichloroethene
0.0013
U
0.0050
0.0013
mg/Kg
06/10/21 11:43
06/12/21 15:13
1
Trichlorofluoromethane
0.0012
U
0.0050
0.0012
mg/Kg
06/10/21 11:43
06/12/21 15:13
1
Vinyl chloride
0.0015
U
0.0050
0.0015
mg/Kg
06/10/21 11:43
06/12/21 15:13
1
Xylenes, Total
0.0011
U
0.0099
0.0011
mg/Kg
06/10/21 11:43
06/12/21 15:13
1
Surrogate %Recovery
Qualifier
Limits
Prepared
Analyzed
Dil Fac
4-Bromofluorobenzene (Surr)
110
65 - 130
06110121 11:43
06112121 15:13
1
Dibromofluoromethane (Surr)
101
65 - 130
06110121 11:43
06112121 15:13
1
1,2-Dichloroethane-d4 (Surr)
99
65- 130
06110121 11:43
06112121 15:13
1
Eurofins TestAmerica,
Savannah
Page 7 of 45 6/16/2021

Client Sample Results
Client: Geosyntec Consultants, Inc.
Job ID: 680-199936-1
Project/Site: Kettler - Wilmington, NC
Client Sample ID: Test Pit - 3
Lab Sample
ID: 680-199936-1
Date Collected: 06/08/21 11:40
Matrix: Soil
Date Received: 06/10/21 09:45
Percent Solids:
82.2
Method: 8260D - Volatile Organic Compounds by GC/MS (Continued)
Surrogate %Recovery
Qualifier
Limits
Prepared
Analyzed
Dil Fac
Toluene-d8 (Surr)
102
65 - 130
06110121 11:43
06112121 15:13
1
Method: 8270E LL - Semivolatile Organic
Compounds
by GC/MS - Low Level
Analyte
Result
Qualifier
RL
MDL
Unit
D
Prepared
Analyzed
Dil Fac
Acenaphthene
0.97
F1
0.040
0.020
mg/Kg
*
06/13/21 14:10
06/14/21 21:53
5
Acenaphthylene
0.053
0.040
0.020
mg/Kg
*
06/13/21 14:10
06/14/21 21:53
5
Acetophenone
0.041
U
0.40
0.041
mg/Kg
*
06/13/21 14:10
06/14/21 21:53
5
Anthracene
0.63
F1
0.040
0.020
mg/Kg
*
06/13/21 14:10
06/14/21 21:53
5
Atrazine
0.046
U
0.40
0.046
mg/Kg
*
06/13/21 14:10
06/14/21 21:53
5
Benzaldehyde
0.062
J
0.40
0.060
mg/Kg
*
06/13/21 14:10
06/14/21 21:53
5
Benzo[a]anthracene
0.60
F1
0.040
0.020
mg/Kg
*
06/13/21 14:10
06/14/21 21:53
5
Benzo[a]pyrene
0.51
0.040
0.0072
mg/Kg
*
06/13/21 14:10
06/14/21 21:53
5
Benzo[b]fluoranthene
0.75
F1
0.040
0.020
mg/Kg
*
06/13/21 14:10
06/14/21 21:53
5
Benzo[g,h,i]perylene
0.13
F1
0.040
0.020
mg/Kg
*
06/13/21 14:10
06/14/21 21:53
5
Benzo[k]fluoranthene
0.29
0.040
0.012
mg/Kg
*
06/13/21 14:10
06/14/21 21:53
5
1,1'-Biphenyl
0.058
J
0.40
0.043
mg/Kg
*
06/13/21 14:10
06/14/21 21:53
5
Bis(2-chloroethoxy)methane
0.039
U
0.40
0.039
mg/Kg
06/13/21 14:10
06/14/21 21:53
5
Bis(2-chloroethyl)ether
0.039
U
0.40
0.039
mg/Kg
06/13/21 14:10
06/14/21 21:53
5
Bis(2-ethylhexyl) phthalate
0.036
U
0.80
0.036
mg/Kg
06/13/21 14:10
06/14/21 21:53
5
4-Bromophenyl phenyl ether
0.042
U
0.40
0.042
mg/Kg
06/13/21 14:10
06/14/21 21:53
5
Butyl benzyl phthalate
0.033
U
0.40
0.033
mg/Kg
06/13/21 14:10
06/14/21 21:53
5
Caprolactam
0.042
U
0.40
0.042
mg/Kg
06/13/21 14:10
06/14/21 21:53
5
Carbazole
0.41
F1
0.40
0.040
mg/Kg
06/13/21 14:10
06/14/21 21:53
5
4-Chloroaniline
0.031
U F2 F1
0.80
0.031
mg/Kg
06/13/21 14:10
06/14/21 21:53
5
4-Chloro-3-methylphenol
0.042
U
0.40
0.042
mg/Kg
06/13/21 14:10
06/14/21 21:53
5
2-Chloronaphthalene
0.036
U
0.40
0.036
mg/Kg
06/13/21 14:10
06/14/21 21:53
5
2-Chlorophenol
0.032
U
0.40
0.032
mg/Kg
06/13/21 14:10
06/14/21 21:53
5
4-Chlorophenyl phenyl ether
0.039
U
0.40
0.039
mg/Kg
06/13/21 14:10
06/14/21 21:53
5
Chrysene
0.65
F1
0.040
0.020
mg/Kg
06/13/21 14:10
06/14/21 21:53
5
Dibenz(a,h)anthracene
0.050
0.040
0.020
mg/Kg
06/13/21 14:10
06/14/21 21:53
5
Dibenzofuran
0.59
F1
0.40
0.040
mg/Kg
06/13/21 14:10
06/14/21 21:53
5
3,T-Dichlorobenzidine
0.10
U F1
0.80
0.10
mg/Kg
#
06/13/21 14:10
06/14/21 21:53
5
2,4-Dichlorophenol
0.043
U
0.40
0.043
mg/Kg
3:�
06/13/21 14:10
06/14/21 21:53
5
Diethyl phthalate
0.045
U
0.40
0.045
mg/Kg
3:�
06/13/21 14:10
06/14/21 21:53
5
2,4-Dimethylphenol
0.046
U
0.80
0.046
mg/Kg
*
06/13/21 14:10
06/14/21 21:53
5
Dimethyl phthalate
0.045
U
0.40
0.045
mg/Kg
*
06/13/21 14:10
06/14/21 21:53
5
Di-n-butyl phthalate
0.10
U
2.1
0.10
mg/Kg
*
06/13/21 14:10
06/14/21 21:53
5
4,6-Dinitro-2-methylphenol
0.10
U F1
2.1
0.10
mg/Kg
P-
06/13/21 14:10
06/14/21 21:53
5
2,4-Dinitrophenol
0.78
U F1
4.0
0.78
mg/Kg
P-
06/13/21 14:10
06/14/21 21:53
5
2,4-Dinitrotoluene
0.045
U
0.40
0.045
mg/Kg
P-
06/13/21 14:10
06/14/21 21:53
5
2,6-Dinitrotoluene
0.048
U
0.40
0.048
mg/Kg
*
06/13/21 14:10
06/14/21 21:53
5
Di-n-octyl phthalate
0.022
U
0.40
0.022
mg/Kg
*
06/13/21 14:10
06/14/21 21:53
5
Fluoranthene
2.6
F1
0.040
0.020
mg/Kg
*
06/13/21 14:10
06/14/21 21:53
5
Fluorene
0.76
0.040
0.020
mg/Kg
*
06/13/21 14:10
06/14/21 21:53
5
Hexachlorobenzene
0.046
U
0.40
0.046
mg/Kg
*
06/13/21 14:10
06/14/21 21:53
5
Hexachlorobutadiene
0.041
U
0.40
0.041
mg/Kg
*
06/13/21 14:10
06/14/21 21:53
5
Hexachlorocyclopentadiene
0.022
U F1
0.80
0.022
mg/Kg
#
06/13/21 14:10
06/14/21 21:53
5
Hexachloroethane
0.035
U F2 F1
0.40
0.035
mg/Kg
#
06/13/21 14:10
06/14/21 21:53
5
Indeno[1,2,3-cd]pyrene
0.11
F2 F1
0.040
0.020
mg/Kg
#
06/13/21 14:10
06/14/21 21:53
5
Eurofins TestAmerica, Savannah
Page 8 of 45 6/16/2021

Client Sample Results
Client: Geosyntec Consultants, Inc.
Job ID: 680-199936-1
Project/Site: Kettler - Wilmington, NC
Client Sample ID: Test Pit - 3
Lab Sample
ID: 680-199936-1
Date Collected: 06/08/21 11:40
Matrix: Soil
Date Received: 06/10/21 09:45
Percent Solids:
82.2
Method: 8270E LL - Semivolatile Organic
Compounds
by GC/MS - Low Level (Continued)
Analyte
Result
Qualifier
RL
MDL
Unit
D
Prepared
Analyzed
Dil Fac
Isophorone
0.042
U
0.40
0.042
mg/Kg
i:�
06/13/21 14:10
06/14/21 21:53
5
2-Methyl naphthalene
0.16
0.040
0.020
mg/Kg
*
06/13/21 14:10
06/14/21 21:53
5
2-Methylphenol
0.038
U
0.40
0.038
mg/Kg
*
06/13/21 14:10
06/14/21 21:53
5
3 & 4 Methylphenol
0.044
U
0.40
0.044
mg/Kg
*
06/13/21 14:10
06/14/21 21:53
5
Naphthalene
0.45
0.040
0.020
mg/Kg
*
06/13/21 14:10
06/14/21 21:53
5
2-Nitroaniline
0.042
U
2.1
0.042
mg/Kg
*
06/13/21 14:10
06/14/21 21:53
5
3-Nitroaniline
0.040
U
2.1
0.040
mg/Kg
#
06/13/21 14:10
06/14/21 21:53
5
4-Nitroaniline
0.050
U F1
2.1
0.050
mg/Kg
#
06/13/21 14:10
06/14/21 21:53
5
Nitrobenzene
0.040
U
0.40
0.040
mg/Kg
#
06/13/21 14:10
06/14/21 21:53
5
2-Nitrophenol
0.035
U
0.40
0.035
mg/Kg
*
06/13/21 14:10
06/14/21 21:53
5
4-Nitrophenol
0.44
U F2
2.1
0.44
mg/Kg
*
06/13/21 14:10
06/14/21 21:53
5
N-Nitrosodi-n-propylamine
0.045
U
0.40
0.045
mg/Kg
*
06/13/21 14:10
06/14/21 21:53
5
N-Nitrosodiphenylamine
0.037
U
0.40
0.037
mg/Kg
i:�
06/13/21 14:10
06/14/21 21:53
5
2,2'-oxybis[l-chloropropane]
0.043
U
0.40
0.043
mg/Kg
i:�
06/13/21 14:10
06/14/21 21:53
5
Pentachlorophenol
0.40
U
2.1
0.40
mg/Kg
i:�
06/13/21 14:10
06/14/21 21:53
5
Phenanthrene
1.2
F1
0.040
0.014
mg/Kg
*
06/13/21 14:10
06/14/21 21:53
5
Phenol
0.039
U
0.40
0.039
mg/Kg
*
06/13/21 14:10
06/14/21 21:53
5
Pyrene
1.7
F1
0.040
0.020
mg/Kg
*
06/13/21 14:10
06/14/21 21:53
5
2,4,5-Trichlorophenol
0.046
U
0.40
0.046
mg/Kg
06/13/21 14:10
06/14/21 21:53
5
2,4,6-Trichlorophenol
0.048
U
0.40
0.048
mg/Kg
06/13/21 14:10
06/14/21 21:53
5
Surrogate %Recovery
Qualifier
Limits
Prepared
Analyzed
Dil Fac
2-Fluorobiphenyl
37
11- 130
06113121 14:10
06114121 21:53
5
2-Fluorophenol (Surr)
34
10 - 130
06113121 14:10
06114121 21:53
5
Nitrobenzene-d5 (Surr)
38
18 - 130
06113121 14:10
06114121 21:53
5
Phenol-d5 (Surr)
40
10- 130
06113121 14:10
06114121 21:53
5
Terphenyl-d14 (Surr)
36
27- 130
06113121 14:10
06114121 21:53
5
2,4,6-Tribromophenol (Surr)
43
24- 130
06113121 14:10
06114121 21:53
5
Method: 8015D - Gasoline Range Organics (GRO) (GC)
Analyte
Result
Qualifier
RL
MDL
Unit
D
Prepared
Analyzed
Dil Fac
Gasoline Range Organics [C6 - C10]
2.8
U
11
2.8
mg/Kg
*
06/10/21 11:43
06/15/21 14:08
100
Surrogate
a, a, a- Trifluorotoluene
%Recovery Qualifier Limits
85 70-131
Method: 8015D - Diesel Range Organics (DRO) (GC)
Analyte Result Qualifier
Diesel Range Organics [C10-C28] 420 B
Surrogate
%Recovery Qualifier
o-Terphenyl
61
Method: 7199 - Chromium, Hexavalent (IC)
Analyte
Result Qualifier
Chromium, hexavalent
0.70
Chromium, hexavalent
0.72
Chromium, hexavalent
0.18 U
Chromium, hexavalent
0.18 U
RL MDL Unit
11 7.0 mg/Kg
Limits
15-139
Prepared Analyzed Dil Fac
0611012111:43 0611512114:08 100
D Prepared Analyzed Dil Fac
* 06/13/21 14:10 06/14/2118:30 1
Prepared Analyzed Dil Fac
06113121 14:10 06114121 18:30 1
RL
MDL
Unit
D
Prepared
Analyzed
Dil Fac
0.49
0.17
mg/Kg
*
06/14/2111:22
06/14/2119:30
1
0.49
0.17
mg/Kg
*
06/14/2111:22
06/14/2119:36
1
0.50
0.18
mg/Kg
*
06/14/2111:24
06/14/2122:14
1
0.50
0.18
mg/Kg
*
06/14/2111:24
06/14/2122:20
1
Page 9 of 45
Eurofins TestAmerica, Savannah
6/16/2021

Client Sample Results
Client: Geosyntec Consultants, Inc.
Job ID: 680-199936-1
Project/Site: Kettler - Wilmington, NC
Client Sample ID: Test Pit - 3
Lab Sample
ID: 680-199936-1
Date Collected: 06/08/21 11:40
Matrix: Soil
Date Received: 06/10/21 09:45
Percent Solids: 82.2
Method: 6020B - Metals (ICP/MS)
Analyte
Result
Qualifier
RL
MDL
Unit
D
Prepared
Analyzed Dil Fac
Arsenic
9.0
0.31
0.10
mg/Kg
*
06/11/2109:51
06/11/2115:32 1
Barium
58
0.52
0.062
mg/Kg
06/11/2109:51
06/11/2115:32 1
Cadmium
0.23
0.052
0.016
mg/Kg
06/11/2109:51
06/11/2115:32 1
Chromium
34
F1
1.0
0.11
mg/Kg
06/11/2109:51
06/11/2115:32 1
Lead
70
0.21
0.052
mg/Kg
0
06/11/2109:51
06/11/2115:32 1
Selenium
0.77
0.52
0.10
mg/Kg
0
06/11/2109:51
06/11/2115:32 1
Silver
0.16
0.10
0.010
mg/Kg
*
06/11/2109:51
06/11/2115:32 1
Method: 7471 B - Mercury (CVAA)
C
Analyte
Result
Qualifier
RL
MDL
Unit
D
Prepared
Analyzed Dil Fac
Mercury
0.21
F1
0.022
0.0088
mg/Kg
*
06/10/2114:40
06/10/2119:21 1
Eurofins TestAmerica, Savannah
Page 10 of 45 6/16/2021

Client Sample Results
Client: Geosyntec Consultants, Inc.
Job ID: 680-199936-1
Project/Site: Kettler - Wilmington, NC
Client Sample ID: Test Pit - 4
Lab Sample
ID: 680-199936-2
Date Collected: 06/08/21 12:00
Matrix: Soil
Date Received: 06/10/21 09:45
Percent Solids:
70.4
Method: 8260D - Volatile Organic Compounds by GC/MS
Analyte
Result
Qualifier
RL
MDL
Unit
D
Prepared
Analyzed
Dil Fac
Acetone
7.2
5.5
1.2
mg/Kg
*
06/10/21 11:43
06/15/21 18:34
1
Benzene
0.081
U
0.55
0.081
mg/Kg
06/10/21 11:43
06/15/21 18:34
1
Dichlorobromomethane
0.11
U
0.55
0.11
mg/Kg
06/10/21 11:43
06/15/21 18:34
1
Bromoform
0.17
U
0.55
0.17
mg/Kg
06/10/21 11:43
06/15/21 18:34
1
Bromomethane
0.17
U
0.55
0.17
mg/Kg
0
06/10/21 11:43
06/15/21 18:34
1
2-Butanone (MEK)
0.26
U
2.8
0.26
mg/Kg
0
06/10/21 11:43
06/15/21 18:34
1
Carbon disulfide
0.12
U
0.55
0.12
mg/Kg
*
06/10/21 11:43
06/15/21 18:34
1
Carbon tetrachloride
0.092
U
0.55
0.092
mg/Kg
*
06/10/21 11:43
06/15/21 18:34
1
Chlorobenzene
0.11
U
0.55
0.11
mg/Kg
*
06/10/21 11:43
06/15/21 18:34
1
Chloroethane
0.30
U
0.55
0.30
mg/Kg
06/10/21 11:43
06/15/21 18:34
1
Chloroform
0.12
U
0.55
0.12
mg/Kg
06/10/21 11:43
06/15/21 18:34
1
Chloromethane
0.11
U+
0.55
0.11
mg/Kg
06/10/21 11:43
06/15/21 18:34
1
Chlorodibromomethane
0.19
U
0.55
0.19
mg/Kg
*
06/10/21 11:43
06/15/21 18:34
1
1,2-Dibromo-3-Chloropropane
0.49
U
1.1
0.49
mg/Kg
*
06/10/21 11:43
06/15/21 18:34
1
1,2-Dibromoethane
0.17
U
0.55
0.17
mg/Kg
*
06/10/21 11:43
06/15/21 18:34
1
1,2-Dichlorobenzene
0.14
U
0.55
0.14
mg/Kg
*
06/10/21 11:43
06/15/21 18:34
1
1,3-Dichlorobenzene
0.18
U
0.55
0.18
mg/Kg
*
06/10/21 11:43
06/15/21 18:34
1
1,4-Dichlorobenzene
0.082
U
0.55
0.082
mg/Kg
(,�
06/10/21 11:43
06/15/21 18:34
1
Dichlorodifluoromethane
0.10
U
0.55
0.10
mg/Kg
0
06/10/21 11:43
06/15/21 18:34
1
1,1-Dichloroethane
0.12
U
0.55
0.12
mg/Kg
06/10/21 11:43
06/15/21 18:34
1
1,2-Dichloroethane
0.12
U
0.55
0.12
mg/Kg
06/10/21 11:43
06/15/21 18:34
1
cis-1,2-Dichloroethene
0.15
U
0.55
0.15
mg/Kg
*
06/10/21 11:43
06/15/21 18:34
1
trans-1,2-Dichloroethene
0.069
U
0.55
0.069
mg/Kg
*
06/10/21 11:43
06/15/21 18:34
1
1,1-Dichloroethene
0.17
U
0.55
0.17
mg/Kg
*
06/10/21 11:43
06/15/21 18:34
1
1,2-Dichloropropane
0.095
U
0.55
0.095
mg/Kg
*
06/10/21 11:43
06/15/21 18:34
1
cis-1,3-Dichloropropene
0.092
U
0.55
0.092
mg/Kg
*
06/10/21 11:43
06/15/21 18:34
1
trans- 1,3-Dichloropropene
0.096
U
0.55
0.096
mg/Kg
*
06/10/21 11:43
06/15/21 18:34
1
Ethylbenzene
0.14
U
0.55
0.14
mg/Kg
*
06/10/21 11:43
06/15/21 18:34
1
2-Hexanone
0.36
U
2.8
0.36
mg/Kg
*
06/10/21 11:43
06/15/21 18:34
1
Isopropyl benzene
0.56
0.55
0.21
mg/Kg
*
06/10/21 11:43
06/15/21 18:34
1
Methylene Chloride
0.11
U
0.55
0.11
mg/Kg
*
06/10/21 11:43
06/15/21 18:34
1
4-Methyl-2-pentanone (MIBK)
0.46
U
2.8
0.46
mg/Kg
*
06/10/21 11:43
06/15/21 18:34
1
Methyl tert-butyl ether
0.11
U
0.55
0.11
mg/Kg
*
06/10/21 11:43
06/15/21 18:34
1
Styrene
0.10
U
0.55
0.10
mg/Kg
06/10/21 11:43
06/15/21 18:34
1
1,1,2,2-Tetrachloroethane
0.18
U
0.55
0.18
mg/Kg
06/10/21 11:43
06/15/21 18:34
1
Tetrachloroethene
0.21
U
0.55
0.21
mg/Kg
06/10/21 11:43
06/15/21 18:34
1
Toluene
0.17
J
0.55
0.093
mg/Kg
06/10/21 11:43
06/15/21 18:34
1
1,2,4-Trichlorobenzene
0.098
U
0.55
0.098
mg/Kg
06/10/21 11:43
06/15/21 18:34
1
1,1,1-Trichloroethane
0.065
U
0.55
0.065
mg/Kg
06/10/21 11:43
06/15/21 18:34
1
1,1,2-Trichloroethane
0.14
U
0.55
0.14
mg/Kg
06/10/21 11:43
06/15/21 18:34
1
Trichloroethene
0.14
U
0.55
0.14
mg/Kg
06/10/21 11:43
06/15/21 18:34
1
Trichlorofluoromethane
0.13
U
0.55
0.13
mg/Kg
06/10/21 11:43
06/15/21 18:34
1
Vinyl chloride
0.17
U
0.55
0.17
mg/Kg
06/10/21 11:43
06/15/21 18:34
1
Xylenes, Total
0.12
U
1.1
0.12
mg/Kg
06/10/21 11:43
06/15/21 18:34
1
Methyl acetate
1.8
J
2.8
0.55
mg/Kg
06/10/21 11:43
06/15/21 18:34
1
Surrogate %Recovery
Qualifier
Limits
Prepared
Analyzed
Dil Fac
Toluene-d8 (Surr)
97
65- 130
06110121 11:43
06115121 18:34
1
1,2-Dichloroethane-d4 (Surr)
90
65- 130
06110121 11:43
06115121 18:34
1
Dibromofluoromethane (Surr)
97
65- 130
06110121 11:43
06115121 18:34
1
Eurofins TestAmerica,
Savannah
Page 11 of 45 6/16/2021

Client Sample Results
Client: Geosyntec Consultants, Inc.
Job ID: 680-199936-1
Project/Site: Kettler - Wilmington, NC
Client Sample ID: Test Pit - 4
Lab Sample
ID: 680-199936-2
Date Collected: 06/08/21 12:00
Matrix: Soil
Date Received: 06/10/21 09:45
Percent Solids:
70.4
Method: 8260D - Volatile Organic Compounds by GC/MS (Continued)
Surrogate %Recovery
Qualifier
Limits
Prepared
Analyzed
Dil Fac
4-Bromofluorobenzene (Surr)
119
65 - 130
06110121 11:43
06115121 18:34
1
Method: 8270E LL - Semivolatile Organic
Compounds
by GC/MS - Low Level
Analyte
Result
Qualifier
RL
MDL
Unit
D
Prepared
Analyzed
Dil Fac
Acenaphthene
0.29
0.047
0.023
mg/Kg
*
06/13/21 14:10
06/14/21 22:17
5
Acenaphthylene
0.14
0.047
0.023
mg/Kg
*
06/13/21 14:10
06/14/21 22:17
5
Acetophenone
0.047
U
0.46
0.047
mg/Kg
*
06/13/21 14:10
06/14/21 22:17
5
Anthracene
0.64
0.047
0.023
mg/Kg
*
06/13/21 14:10
06/14/21 22:17
5
Atrazine
0.053
U
0.46
0.053
mg/Kg
*
06/13/21 14:10
06/14/21 22:17
5
Benzaldehyde
0.092
J
0.46
0.069
mg/Kg
*
06/13/21 14:10
06/14/21 22:17
5
Benzo[a]anthracene
1.6
0.047
0.023
mg/Kg
*
06/13/21 14:10
06/14/21 22:17
5
Benzo[a]pyrene
1.9
0.047
0.0084
mg/Kg
*
06/13/21 14:10
06/14/21 22:17
5
Benzo[b]fluoranthene
2.7
0.047
0.023
mg/Kg
*
06/13/21 14:10
06/14/21 22:17
5
Benzo[g,h,i]perylene
0.56
0.047
0.023
mg/Kg
*
06/13/21 14:10
06/14/21 22:17
5
Benzo[k]fluoranthene
1.1
0.047
0.014
mg/Kg
*
06/13/21 14:10
06/14/21 22:17
5
1,1'-Biphenyl
0.057
J
0.46
0.050
mg/Kg
*
06/13/21 14:10
06/14/21 22:17
5
Bis(2-chloroethoxy)methane
0.045
U
0.46
0.045
mg/Kg
06/13/21 14:10
06/14/21 22:17
5
Bis(2-chloroethyl)ether
0.045
U
0.46
0.045
mg/Kg
06/13/21 14:10
06/14/21 22:17
5
Bis(2-ethylhexyl) phthalate
0.042
U
0.92
0.042
mg/Kg
06/13/21 14:10
06/14/21 22:17
5
4-Bromophenyl phenyl ether
0.048
U
0.46
0.048
mg/Kg
06/13/21 14:10
06/14/21 22:17
5
Butyl benzyl phthalate
0.038
U
0.46
0.038
mg/Kg
06/13/21 14:10
06/14/21 22:17
5
Caprolactam
0.049
U
0.46
0.049
mg/Kg
06/13/21 14:10
06/14/21 22:17
5
Carbazole
0.17
J
0.46
0.047
mg/Kg
06/13/21 14:10
06/14/21 22:17
5
4-Chloroaniline
0.036
U
0.92
0.036
mg/Kg
06/13/21 14:10
06/14/21 22:17
5
4-Chloro-3-methylphenol
0.049
U
0.46
0.049
mg/Kg
06/13/21 14:10
06/14/21 22:17
5
2-Chloronaphthalene
0.042
U
0.46
0.042
mg/Kg
06/13/21 14:10
06/14/21 22:17
5
2-Chlorophenol
0.037
U
0.46
0.037
mg/Kg
06/13/21 14:10
06/14/21 22:17
5
4-Chlorophenyl phenyl ether
0.045
U
0.46
0.045
mg/Kg
06/13/21 14:10
06/14/21 22:17
5
Chrysene
1.8
0.047
0.023
mg/Kg
06/13/21 14:10
06/14/21 22:17
5
Dibenz(a,h)anthracene
0.19
0.047
0.023
mg/Kg
06/13/21 14:10
06/14/21 22:17
5
Dibenzofuran
0.26
J
0.46
0.047
mg/Kg
06/13/21 14:10
06/14/21 22:17
5
3,T-Dichlorobenzidine
0.12
U
0.92
0.12
mg/Kg
#
06/13/21 14:10
06/14/21 22:17
5
2,4-Dichlorophenol
0.050
U
0.46
0.050
mg/Kg
3:�
06/13/21 14:10
06/14/21 22:17
5
Diethyl phthalate
0.052
U
0.46
0.052
mg/Kg
3:�
06/13/21 14:10
06/14/21 22:17
5
2,4-Dimethylphenol
0.053
U
0.92
0.053
mg/Kg
*
06/13/21 14:10
06/14/21 22:17
5
Dimethyl phthalate
0.052
U
0.46
0.052
mg/Kg
*
06/13/21 14:10
06/14/21 22:17
5
Di-n-butyl phthalate
0.12
U
2.4
0.12
mg/Kg
*
06/13/21 14:10
06/14/21 22:17
5
4,6-Dinitro-2-methylphenol
0.12
U
2.4
0.12
mg/Kg
P-
06/13/21 14:10
06/14/21 22:17
5
2,4-Dinitrophenol
0.91
U
4.6
0.91
mg/Kg
P-
06/13/21 14:10
06/14/21 22:17
5
2,4-Dinitrotoluene
0.052
U
0.46
0.052
mg/Kg
P-
06/13/21 14:10
06/14/21 22:17
5
2,6-Dinitrotoluene
0.055
U
0.46
0.055
mg/Kg
*
06/13/21 14:10
06/14/21 22:17
5
Di-n-octyl phthalate
0.025
U
0.46
0.025
mg/Kg
*
06/13/21 14:10
06/14/21 22:17
5
Fluoranthene
3.9
0.047
0.023
mg/Kg
*
06/13/21 14:10
06/14/21 22:17
5
Fluorene
0.56
0.047
0.023
mg/Kg
*
06/13/21 14:10
06/14/21 22:17
5
Hexachlorobenzene
0.053
U
0.46
0.053
mg/Kg
*
06/13/21 14:10
06/14/21 22:17
5
Hexachlorobutadiene
0.047
U
0.46
0.047
mg/Kg
*
06/13/21 14:10
06/14/21 22:17
5
Hexachlorocyclopentadiene
0.026
U
0.92
0.026
mg/Kg
#
06/13/21 14:10
06/14/21 22:17
5
Hexachloroethane
0.040
U
0.46
0.040
mg/Kg
#
06/13/21 14:10
06/14/21 22:17
5
Indeno[1,2,3-cd]pyrene
0.40
0.047
0.023
mg/Kg
#
06/13/21 14:10
06/14/21 22:17
5
Eurofins TestAmerica, Savannah
Page 12 of 45 6/16/2021

Client Sample Results
Client: Geosyntec Consultants, Inc.
Job ID: 680-199936-1
Project/Site: Kettler - Wilmington, NC
Client Sample ID: Test Pit - 4
Lab Sample
ID: 680-199936-2
Date Collected: 06/08/21 12:00
Matrix: Soil
Date Received: 06/10/21 09:45
Percent Solids:
70.4
Method: 8270E LL - Semivolatile Organic
Compounds
by GC/MS - Low Level (Continued)
Analyte
Result
Qualifier
RL
MDL
Unit
D
Prepared
Analyzed
Dil Fac
Isophorone
0.049
U
0.46
0.049
mg/Kg
i:�
06/13/2114:10
06/14/2122:17
5
2-Methyl naphthalene
0.55
0.047
0.023
mg/Kg
*
06/13/2114:10
06/14/2122:17
5
2-Methylphenol
0.044
U
0.46
0.044
mg/Kg
*
06/13/2114:10
06/14/2122:17
5
3 & 4 Methylphenol
0.051
U
0.46
0.051
mg/Kg
*
06/13/21 14:10
06/14/21 22:17
5
Naphthalene
0.40
0.047
0.023
mg/Kg
*
06/13/2114:10
06/14/2122:17
5
2-Nitroaniline
0.049
U
2.4
0.049
mg/Kg
*
06/13/2114:10
06/14/2122:17
5
3-Nitroaniline
0.047
U
2.4
0.047
mg/Kg
#
06/13/2114:10
06/14/2122:17
5
4-Nitroaniline
0.058
U
2.4
0.058
mg/Kg
#
06/13/2114:10
06/14/2122:17
5
Nitrobenzene
0.046
U
0.46
0.046
mg/Kg
#
06/13/2114:10
06/14/2122:17
5
2-Nitrophenol
0.040
U
0.46
0.040
mg/Kg
*
06/13/2114:10
06/14/2122:17
5
4-Nitrophenol
0.51
U
2.4
0.51
mg/Kg
*
06/13/2114:10
06/14/2122:17
5
N-Nitrosodi-n-propylamine
0.052
U
0.46
0.052
mg/Kg
*
06/13/2114:10
06/14/2122:17
5
N-Nitrosodiphenylamine
0.043
U
0.46
0.043
mg/Kg
i:�
06/13/2114:10
06/14/2122:17
5
2,2'-oxybis[l-chloropropane]
0.050
U
0.46
0.050
mg/Kg
i:�
06/13/2114:10
06/14/2122:17
5
Pentachlorophenol
0.47
U
2.4
0.47
mg/Kg
i:�
06/13/2114:10
06/14/2122:17
5
Phenanthrene
2.2
0.047
0.017
mg/Kg
*
06/13/2114:10
06/14/2122:17
5
Phenol
0.045
U
0.46
0.045
mg/Kg
*
06/13/2114:10
06/14/2122:17
5
Pyrene
2.9
0.047
0.023
mg/Kg
*
06/13/2114:10
06/14/2122:17
5
2,4,5-Trichlorophenol
0.053
U
0.46
0.053
mg/Kg
06/13/2114:10
06/14/2122:17
5
2,4,6-Trichlorophenol
0.055
U
0.46
0.055
mg/Kg
06/13/2114:10
06/14/2122:17
5
Surrogate %Recovery
Qualifier
Limits
Prepared
Analyzed
Dil Fac
2-Fluorobiphenyl
41
11- 130
06113121 14:10
06114121 22:17
5
2-Fluorophenol (Surr)
42
10 - 130
06113121 14:10
06114121 22:17
5
Nitrobenzene-d5 (Surr)
33
18 - 130
06113121 14:10
06114121 22:17
5
Phenol-d5 (Surr)
42
10- 130
06113121 14:10
06114121 22:17
5
Terphenyl-d14 (Surr)
38
27- 130
06113121 14:10
06114121 22:17
5
2,4,6-Tribromophenol (Surr)
48
24- 130
06113121 14:10
06114121 22:17
5
Method: 8015D - Gasoline Range Organics (GRO) (GC)
Analyte
Result
Qualifier
RL
MDL
Unit
D
Prepared
Analyzed
Dil Fac
Gasoline Range Organics [C6 -
69
47
12
mg/Kg
*
06/10/21 11:43
06/15/21 15:08
200
C10]
Surrogate %Recovery Qualifier
a,a,a-Trifluorotoluene 77
Method: 8015D - Diesel Range Organics (DRO) (GC)
Analyte Result Qualifier
Diesel Range Organics [C10-C28] 840 B
Surrogate
%Recovery Qualifier
o-Terphenyl
104
Method: 7199 - Chromium, Hexavalent (IC)
Analyte
Result Qualifier
Chromium, hexavalent
0.32 J
Chromium, hexavalent
0.34 J
Chromium, hexavalent
1.0
Chromium, hexavalent
1.0
Limits
70-131
RL MDL Unit
4.6 3.0 mg/Kg
Limits
15-139
Prepared Analyzed Dil Fac
0611012111:43 0611512115:08 200
D Prepared Analyzed Dil Fac
* 06/13/2114:10 06/14/2118:46 1
Prepared Analyzed Dil Fac
06113121 14:10 06114121 18:46 1
RL
MDL
Unit
D
Prepared
Analyzed
Dil Fac
0.56
0.20
mg/Kg
3:�
06/14/2111:22
06/14/2119:41
1
0.56
0.20
mg/Kg
3:�
06/14/2111:22
06/14/2119:47
1
0.56
0.19
mg/Kg
3:�
06/14/2111:24
06/14/2122:25
1
0.56
0.19
mg/Kg
*
06/14/2111:24
06/14/2122:31
1
Page 13 of 45
Eurofins TestAmerica, Savannah
6/16/2021

Client Sample Results
Client: Geosyntec Consultants, Inc.
Job ID: 680-199936-1
Project/Site: Kettler - Wilmington, NC
Client Sample ID: Test Pit - 4
Lab Sample
ID: 680-199936-2
Date Collected: 06/08/21 12:00
Matrix: Soil
Date Received: 06/10/21 09:45
Percent Solids: 70.4
Method: 6020B - Metals (ICP/MS)
Analyte
Result
Qualifier
RL
MDL
Unit
D
Prepared
Analyzed Dil Fac
Arsenic
24
0.42
0.14
mg/Kg
*
06/11/2109:51
06/11/2115:50 1
Barium
45
0.70
0.084
mg/Kg
06/11/2109:51
06/11/2115:50 1
Cadmium
0.39
0.070
0.021
mg/Kg
06/11/2109:51
06/11/2115:50 1
Chromium
23
1.4
0.15
mg/Kg
06/11/2109:51
06/11/2115:50 1
Lead
120
0.28
0.070
mg/Kg
0
06/11/2109:51
06/11/2115:50 1
Selenium
0.61
J
0.70
0.14
mg/Kg
0
06/11/2109:51
06/11/2115:50 1
Silver
0.091
J
0.14
0.014
mg/Kg
*
06/11/2109:51
06/11/2115:50 1
Method: 7471 B - Mercury (CVAA)
C
Analyte
Result
Qualifier
RL
MDL
Unit
D
Prepared
Analyzed Dil Fac
Mercury
0.10
0.024
0.0096
mg/Kg
*
06/10/2114:40
06/10/2119:35 1
Eurofins TestAmerica, Savannah
Page 14 of 45 6/16/2021

QC Sample Results
Client: Geosyntec Consultants, Inc.
Job ID: 680-199936-1
Project/Site: Kettler - Wilmington, NC
Method: 8260D - Volatile Organic Compounds by GUMS
Lab Sample ID: MB 680-672515/7
Client Sample ID: Method Blank
Matrix: Solid
Prep Type: Total/NA
Analysis Batch: 672515
MB
MB
Analyte
Result
Qualifier
RL
MDL
Unit
D Prepared Analyzed
Dil Fac
Acetone
0.011
U
0.050
0.011
mg/Kg
06/12/21 14:22
1
Benzene
0.00073
U
0.0050
0.00073
mg/Kg
06/12/21 14:22
1
Bromoform
0.0015
U
0.0050
0.0015
mg/Kg
06/12/21 14:22
1
Bromomethane
0.0015
U
0.0050
0.0015
mg/Kg
06/12/21 14:22
1
2-Butanone (MEK)
0.0024
U
0.025
0.0024
mg/Kg
06/12/21 14:22
1
Carbon disulfide
0.0011
U
0.0050
0.0011
mg/Kg
06/12/21 14:22
1
Carbon tetrachloride
0.00083
U
0.0050
0.00083
mg/Kg
06/12/21 14:22
1
Chlorobenzene
0.00096
U
0.0050
0.00096
mg/Kg
06/12/21 14:22
1
Chloroethane
0.0027
U
0.0050
0.0027
mg/Kg
06/12/21 14:22
1
Chloroform
0.0011
U
0.0050
0.0011
mg/Kg
06/12/21 14:22
1
Chlorodibromomethane
0.0017
U
0.0050
0.0017
mg/Kg
06/12/21 14:22
1
Chloromethane
0.0010
U
0.0050
0.0010
mg/Kg
06/12/21 14:22
1
1,2-Dibromo-3-Chloropropane
0.0044
U
0.010
0.0044
mg/Kg
06/12/21 14:22
1
1,2-Dibromoethane
0.0015
U
0.0050
0.0015
mg/Kg
06/12/21 14:22
1
1,2-Dichlorobenzene
0.0013
U
0.0050
0.0013
mg/Kg
06/12/21 14:22
1
1,3-Dichlorobenzene
0.0016
U
0.0050
0.0016
mg/Kg
06/12/21 14:22
1
1,4-Dichlorobenzene
0.00074
U
0.0050
0.00074
mg/Kg
06/12/21 14:22
1
cis-1,2-Dichloroethene
0.0014
U
0.0050
0.0014
mg/Kg
06/12/21 14:22
1
Dichlorobromomethane
0.00097
U
0.0050
0.00097
mg/Kg
06/12/21 14:22
1
Dichlorodifluoromethane
0.00094
U
0.0050
0.00094
mg/Kg
06/12/21 14:22
1
1,1-Dichloroethane
0.0011
U
0.0050
0.0011
mg/Kg
06/12/21 14:22
1
1,2-Dichloroethane
0.0011
U
0.0050
0.0011
mg/Kg
06/12/21 14:22
1
cis-1,3-Dichloropropene
0.00083
U
0.0050
0.00083
mg/Kg
06/12/21 14:22
1
1,1-Dichloroethene
0.0015
U
0.0050
0.0015
mg/Kg
06/12/21 14:22
1
1,2-Dichloropropane
0.00086
U
0.0050
0.00086
mg/Kg
06/12/21 14:22
1
Ethylbenzene
0.0013
U
0.0050
0.0013
mg/Kg
06/12/21 14:22
1
2-Hexanone
0.0033
U
0.025
0.0033
mg/Kg
06/12/21 14:22
1
Isopropylbenzene
0.0019
U
0.0050
0.0019
mg/Kg
06/12/21 14:22
1
Methylene Chloride
0.00098
U
0.0050
0.00098
mg/Kg
06/12/21 14:22
1
4-Methyl-2-pentanone (MIBK)
0.0042
U
0.025
0.0042
mg/Kg
06/12/21 14:22
1
Methyl tert-butyl ether
0.0010
U
0.0050
0.0010
mg/Kg
06/12/21 14:22
1
Styrene
0.00093
U
0.0050
0.00093
mg/Kg
06/12/21 14:22
1
1,1,2,2-Tetrachloroethane
0.0016
U
0.0050
0.0016
mg/Kg
06/12/21 14:22
1
Tetrachloroethene
0.0019
U
0.0050
0.0019
mg/Kg
06/12/21 14:22
1
Toluene
0.00084
U
0.0050
0.00084
mg/Kg
06/12/21 14:22
1
trans- 1,2-Dichloroethene
0.00063
U
0.0050
0.00063
mg/Kg
06/12/21 14:22
1
trans- 1,3-Dichloropropene
0.00087
U
0.0050
0.00087
mg/Kg
06/12/21 14:22
1
1,2,4-Trichlorobenzene
0.00089
U
0.0050
0.00089
mg/Kg
06/12/21 14:22
1
1,1,1-Trichloroethane
0.00059
U
0.0050
0.00059
mg/Kg
06/12/21 14:22
1
1,1,2-Trichloroethane
0.0013
U
0.0050
0.0013
mg/Kg
06/12/21 14:22
1
Trichloroethene
0.0013
U
0.0050
0.0013
mg/Kg
06/12/21 14:22
1
Methyl acetate
0.0050
U
0.025
0.0050
mg/Kg
06/12/21 14:22
1
Trichlorofluoromethane
0.0012
U
0.0050
0.0012
mg/Kg
06/12/21 14:22
1
Vinyl chloride
0.0015
U
0.0050
0.0015
mg/Kg
06/12/21 14:22
1
Xylenes, Total
0.0011
U
0.010
0.0011
mg/Kg
06/12/21 14:22
1
MB
MB
Surrogate %Recovery
Qualifier
Limits
Prepared Analyzed
Dil Fac
Toluene-d8 (Surr)
99
65 - 130
06112121 14:22
1
Eurofins TestAmerica, Savannah
Page 15 of 45 6/16/2021

QC Sample Results
Client: Geosyntec Consultants, Inc.
Project/Site: Kettler - Wilmington, NC
Method: 8260D - Volatile Organic Compounds by GC/MS (Continued)
Lab Sample ID: MB 680-672515/7
Matrix: Solid
Analysis Batch: 672515
MB MB
Surrogate %Recovery Qualifier
1,2-Dichloroethane-d4 (Surr) 93
Dibromofluoromethane (Surr) 98
4-Bromofluorobenzene (Surr) 90
Lab Sample ID: LCS 680-672515/3
Matrix: Solid
Analysis Batch: 672515
Job ID: 680-199936-1
Client Sample ID: Method Blank
Prep Type: Total/NA
Limits Prepared Analyzed Dil Fac
65 - 130 06112121 14722 1 •
65 - 130 06112121 14:22 1
65 - 130 06112121 14:22 1
Client Sample ID: Lab Control Sample
Prep Type: Total/NA
Analyte
Spike
Added
LCS LCS
Result Qualifier
Unit
D %Rec
%Rec.
Limits
Acetone
0.250
0.305
mg/Kg
122
10 -150
Benzene
0.0500
0.0486
mg/Kg
97
70 -130
Bromoform
0.0500
0.0552
mg/Kg
110
68 -130
Bromomethane
0.0500
0.0505
mg/Kg
101
70 -130
2-Butanone (MEK)
0.250
0.294
mg/Kg
118
40 -150
Carbon disulfide
0.0500
0.0456
mg/Kg
91
70 -130
Carbon tetrachloride
0.0500
0.0445
mg/Kg
89
70 -130
Chlorobenzene
0.0500
0.0486
mg/Kg
97
70 -130
Chloroethane
0.0500
0.0480
mg/Kg
96
70 -130
Chloroform
0.0500
0.0487
mg/Kg
97
70 -130
Chlorodibromomethane
0.0500
0.0541
mg/Kg
108
64 -133
Chloromethane
0.0500
0.0693 "+
mg/Kg
139
70 -130
1,2-Dibromo-3-Chloropropane
0.0500
0.0570
mg/Kg
114
42 -145
1,2-Dibromoethane
0.0500
0.0562
mg/Kg
112
48-150
1,2-Dichlorobenzene
0.0500
0.0484
mg/Kg
97
70 -130
1,3-Dichlorobenzene
0.0500
0.0477
mg/Kg
95
70 -130
1,4-Dichlorobenzene
0.0500
0.0483
mg/Kg
97
70 -130
cis-1,2-Dichloroethene
0.0500
0.0480
mg/Kg
96
70 -130
Dichlorobromomethane
0.0500
0.0493
mg/Kg
99
70 -130
Dichlorodifluoromethane
0.0500
0.0303
mg/Kg
61
43 -131
1,1-Dichloroethane
0.0500
0.0471
mg/Kg
94
70-130
1,2-Dichloroethane
0.0500
0.0494
mg/Kg
99
68 -139
cis-1,3-Dichloropropene
0.0500
0.0513
mg/Kg
103
70 -130
1,1-Dichloroethene
0.0500
0.0458
mg/Kg
92
69-130
1,2-Dichloropropane
0.0500
0.0501
mg/Kg
100
70 -130
Ethylbenzene
0.0500
0.0466
mg/Kg
93
70 -130
2-Hexanone
0.250
0.300
mg/Kg
120
30 -150
Isopropylbenzene
0.0500
0.0470
mg/Kg
94
70 -130
Methylene Chloride
0.0500
0.0492
mg/Kg
98
54 -149
4-Methyl-2-pentanone (MIBK)
0.250
0.290
mg/Kg
116
34 -150
Methyl tert-butyl ether
0.0500
0.0576
mg/Kg
115
70 -130
Styrene
0.0500
0.0495
mg/Kg
99
70 -130
1,1,2,2-Tetrachloroethane
0.0500
0.0561
mg/Kg
112
64-130
Tetrachloroethene
0.0500
0.0507
mg/Kg
101
70 -130
Toluene
0.0500
0.0493
mg/Kg
99
70 -130
trans- 1,2-Dichloroethene
0.0500
0.0487
mg/Kg
97
67-130
o-Xylene
0.0500
0.0478
mg/Kg
96
70 -130
trans- 1,3-Dichloropropene
0.0500
0.0513
mg/Kg
103
54 -150
1,2,4-Trichlorobenzene
0.0500
0.0541
mg/Kg
108
70 -130
Page 16 of 45
Eurofins TestAmerica, Savannah
6/16/2021

QC Sample Results
Client: Geosyntec Consultants, Inc.
Project/Site: Kettler - Wilmington, NC
Method: 8260D - Volatile Organic Compounds by GC/MS (Continued)
Lab Sample ID: LCS 680-672515/3
Matrix: Solid
Analysis Batch: 672515
Job ID: 680-199936-1
Client Sample ID: Lab Control Sample
Prep Type: Total/NA
Analyte
Spike
Added
LCS LCS
Result Qualifier
Unit
D %Rec
%Rec.
Limits
m-Xylene & p-Xylene
0.0500
0.0471
mg/Kg
94
70 -130
1,1,1-Trichloroethane
0.0500
0.0456
mg/Kg
91
70-130
1,1,2-Trichloroethane
0.0500
0.0542
mg/Kg
108
56-146
Trichloroethene
0.0500
0.0480
mg/Kg
96
70 -130
Methyl acetate
0.100
0.114
mg/Kg
114
22 -150
Trichlorofluoromethane
0.0500
0.0439
mg/Kg
88
70 -130
Vinyl chloride
0.0500
0.0458
mg/Kg
92
70 -130
Xylenes, Total
0.100
0.0949
mg/Kg
95
70 -130
Surrogate
Toluene-d8 (Surr)
1,2-Dichloroethane-d4 (Surr)
Dibromofluoromethane (Surr)
4-Bromofluorobenzene (Surr)
LCS LCS
%Recovery Qualifier
Limits
94
65-130
99
65-130
97
65-130
90
65-130
Lab Sample ID: LCSD 680-672515/4
Matrix: Solid
Analysis Batch: 672515
Analyte
Spike
Added
LCSD
Result
Client Sample ID: Lab Control Sample Dup
Prep Type: Total/NA
LCSD %Rec. RPD
Qualifier Unit D %Rec Limits RPD Limit
Acetone
0.250
0.281
mg/Kg
112
10 -150
8
50
Benzene
0.0500
0.0492
mg/Kg
98
70-130
1
30
Bromoform
0.0500
0.0554
mg/Kg
111
68 -130
0
30
Bromomethane
0.0500
0.0496
mg/Kg
99
70 -130
2
30
2-Butanone (MEK)
0.250
0.275
mg/Kg
110
40 -150
7
30
Carbon disulfide
0.0500
0.0465
mg/Kg
93
70 -130
2
30
Carbon tetrachloride
0.0500
0.0461
mg/Kg
92
70 -130
4
30
Chlorobenzene
0.0500
0.0501
mg/Kg
100
70 -130
3
30
Chloroethane
0.0500
0.0459
mg/Kg
92
70 -130
4
30
Chloroform
0.0500
0.0490
mg/Kg
98
70 -130
1
30
Chlorodibromomethane
0.0500
0.0533
mg/Kg
107
64 -133
1
30
Chloromethane
0.0500
0.0680
,+ mg/Kg
136
70 -130
2
30
1,2-Dibromo-3-Chloropropane
0.0500
0.0557
mg/Kg
111
42 -145
2
30
1,2-Dibromoethane
0.0500
0.0555
mg/Kg
111
48-150
1
30
1,2-Dichlorobenzene
0.0500
0.0494
mg/Kg
99
70 -130
2
30
1,3-Dichlorobenzene
0.0500
0.0491
mg/Kg
98
70 -130
3
30
1,4-Dichlorobenzene
0.0500
0.0489
mg/Kg
98
70 -130
1
30
cis-1,2-Dichloroethene
0.0500
0.0484
mg/Kg
97
70 -130
1
30
Dichlorobromomethane
0.0500
0.0487
mg/Kg
97
70 -130
1
30
Dichlorodifluoromethane
0.0500
0.0302
mg/Kg
60
43 -131
1
30
1,1-Dichloroethane
0.0500
0.0474
mg/Kg
95
70-130
1
30
1,2-Dichloroethane
0.0500
0.0495
mg/Kg
99
68 -139
0
30
cis-1,3-Dichloropropene
0.0500
0.0508
mg/Kg
102
70 -130
1
30
1,1-Dichloroethene
0.0500
0.0475
mg/Kg
95
69-130
4
50
1,2-Dichloropropane
0.0500
0.0495
mg/Kg
99
70 -130
1
30
Ethylbenzene
0.0500
0.0487
mg/Kg
97
70 -130
4
30
2-Hexanone
0.250
0.282
mg/Kg
113
30 -150
6
30
Isopropylbenzene
0.0500
0.0490
mg/Kg
98
70 -130
4
30
0
Eurofins TestAmerica, Savannah
Page 17 of 45 6/16/2021

QC Sample Results
Client: Geosyntec Consultants, Inc.
Project/Site: Kettler - Wilmington, NC
Job ID: 680-199936-1
Method: 8260D - Volatile Organic Compounds by GUMS (Continued)
Lab Sample ID: LCSD 680-672515/4
Client
Sample ID: Lab Control Sample
Dup
Matrix: Solid
Prep Type: Total/NA
Analysis Batch: 672515
Spike
LCSD LCSD
%Rec.
RPD
Analyte
Added
Result Qualifier
Unit
D %Rec
Limits RPD
Limit
Methylene Chloride
0.0500
0.0492
mg/Kg
98
54 -149 0
30
4-Methyl-2-pentanone (MIBK)
0.250
0.276
mg/Kg
111
34 -150 5
30
Methyl tert-butyl ether
0.0500
0.0559
mg/Kg
112
70 -130 3
30
Styrene
0.0500
0.0498
mg/Kg
100
70 -130 1
30
1,1,2,2-Tetrachloroethane
0.0500
0.0556
mg/Kg
111
64-130 1
30
Tetrachloroethene
0.0500
0.0519
mg/Kg
104
70 -130 2
30
Toluene
0.0500
0.0499
mg/Kg
100
70 -130 1
30
trans- 1,2-Dichloroethene
0.0500
0.0509
mg/Kg
102
67-130 5
30
o-Xylene
0.0500
0.0482
mg/Kg
96
70 -130 1
30
trans- 1,3-Dichloropropene
0.0500
0.0512
mg/Kg
102
54 -150 0
30
1,2,4-Trichlorobenzene
0.0500
0.0543
mg/Kg
109
70 -130 0
30
m-Xylene & p-Xylene
0.0500
0.0481
mg/Kg
96
70 -130 2
30
1,1,1-Trichloroethane
0.0500
0.0464
mg/Kg
93
70-130 2
30
1,1,2-Trichloroethane
0.0500
0.0539
mg/Kg
108
56-146 1
30
Trichloroethene
0.0500
0.0495
mg/Kg
99
70 -130 3
30
Methyl acetate
0.100
0.110
mg/Kg
110
22 -150 3
30
Trichlorofluoromethane
0.0500
0.0425
mg/Kg
85
70 -130 3
30
Vinyl chloride
0.0500
0.0454
mg/Kg
91
70 -130 1
30
Xylenes, Total
0.100
0.0963
mg/Kg
96
70 -130 1
30
LCSD LCSD
Surrogate %Recovery Qualifier
Limits
Toluene-d8 (Surr)
95
65 - 130
1,2-Dichloroethane-d4 (Surr)
97
65- 130
Dibromofluoromethane (Surr)
100
65 - 130
4-Bromofluorobenzene (Surr)
93
65 - 130
Lab Sample ID: MB 680-672839/7
Client Sample ID: Method
Blank
Matrix: Solid
Prep Type: Total/NA
Analysis Batch: 672839
MB
MB
Analyte
Result
Qualifier
RL
MDL
Unit
D Prepared
Analyzed
Dil Fac
Acetone
0.011
U
0.050
0.011
mg/Kg
06/15/21 14:59
1
Benzene
0.00073
U
0.0050
0.00073
mg/Kg
06/15/21 14:59
1
Bromoform
0.0015
U
0.0050
0.0015
mg/Kg
06/15/21 14:59
1
Bromomethane
0.0015
U
0.0050
0.0015
mg/Kg
06/15/21 14:59
1
2-Butanone (MEK)
0.0024
U
0.025
0.0024
mg/Kg
06/15/21 14:59
1
Carbon disulfide
0.0011
U
0.0050
0.0011
mg/Kg
06/15/21 14:59
1
Carbon tetrachloride
0.00083
U
0.0050
0.00083
mg/Kg
06/15/21 14:59
1
Chlorobenzene
0.00096
U
0.0050
0.00096
mg/Kg
06/15/21 14:59
1
Chloroethane
0.0027
U
0.0050
0.0027
mg/Kg
06/15/21 14:59
1
Chloroform
0.0011
U
0.0050
0.0011
mg/Kg
06/15/21 14:59
1
Chlorodibromomethane
0.0017
U
0.0050
0.0017
mg/Kg
06/15/21 14:59
1
Chloromethane
0.0010
U
0.0050
0.0010
mg/Kg
06/15/21 14:59
1
1,2-Dibromo-3-Chloropropane
0.0044
U
0.010
0.0044
mg/Kg
06/15/21 14:59
1
1,2-Dibromoethane
0.0015
U
0.0050
0.0015
mg/Kg
06/15/21 14:59
1
1,2-Dichlorobenzene
0.0013
U
0.0050
0.0013
mg/Kg
06/15/21 14:59
1
1,3-Dichlorobenzene
0.0016
U
0.0050
0.0016
mg/Kg
06/15/21 14:59
1
1,4-Dichlorobenzene
0.00074
U
0.0050
0.00074
mg/Kg
06/15/21 14:59
1
Eurofins TestAmerica, Savannah
Page 18 of 45 6/16/2021

QC Sample Results
Client: Geosyntec Consultants, Inc.
Job ID: 680-199936-1
Project/Site: Kettler - Wilmington, NC
Method: 8260D - Volatile Organic Compounds by GUMS (Continued)
Lab Sample ID: MB 680-672839/7
Client Sample ID: Method Blank
Matrix: Solid
Prep Type: Total/NA
Analysis Batch: 672839
MB
MB
Analyte
Result
Qualifier
RL
MDL
Unit
D Prepared
Analyzed
Dil Fac
cis-1,2-Dichloroethene
0.0014
U
0.0050
0.0014
mg/Kg
06/15/21 14:59
1
Dichlorobromomethane
0.00097
U
0.0050
0.00097
mg/Kg
06/15/21 14:59
1
Dichlorodifluoromethane
0.00094
U
0.0050
0.00094
mg/Kg
06/15/21 14:59
1
1,1-Dichloroethane
0.0011
U
0.0050
0.0011
mg/Kg
06/15/21 14:59
1
1,2-Dichloroethane
0.0011
U
0.0050
0.0011
mg/Kg
06/15/21 14:59
1
cis-1,3-Dichloropropene
0.00083
U
0.0050
0.00083
mg/Kg
06/15/21 14:59
1
1,1-Dichloroethene
0.0015
U
0.0050
0.0015
mg/Kg
06/15/21 14:59
1
1,2-Dichloropropane
0.00086
U
0.0050
0.00086
mg/Kg
06/15/21 14:59
1
Ethylbenzene
0.0013
U
0.0050
0.0013
mg/Kg
06/15/21 14:59
1
2-Hexanone
0.0033
U
0.025
0.0033
mg/Kg
06/15/21 14:59
1
Isopropylbenzene
0.0019
U
0.0050
0.0019
mg/Kg
06/15/21 14:59
1
Methylene Chloride
0.00098
U
0.0050
0.00098
mg/Kg
06/15/21 14:59
1
4-Methyl-2-pentanone (MIBK)
0.0042
U
0.025
0.0042
mg/Kg
06/15/21 14:59
1
Methyl tert-butyl ether
0.0010
U
0.0050
0.0010
mg/Kg
06/15/21 14:59
1
Styrene
0.00093
U
0.0050
0.00093
mg/Kg
06/15/21 14:59
1
1,1,2,2-Tetrachloroethane
0.0016
U
0.0050
0.0016
mg/Kg
06/15/21 14:59
1
Tetrachloroethene
0.0019
U
0.0050
0.0019
mg/Kg
06/15/21 14:59
1
Toluene
0.00084
U
0.0050
0.00084
mg/Kg
06/15/21 14:59
1
trans- 1,2-Dichloroethene
0.00063
U
0.0050
0.00063
mg/Kg
06/15/21 14:59
1
trans- 1,3-Dichloropropene
0.00087
U
0.0050
0.00087
mg/Kg
06/15/21 14:59
1
1,2,4-Trichlorobenzene
0.00089
U
0.0050
0.00089
mg/Kg
06/15/21 14:59
1
1,1,1-Trichloroethane
0.00059
U
0.0050
0.00059
mg/Kg
06/15/21 14:59
1
1,1,2-Trichloroethane
0.0013
U
0.0050
0.0013
mg/Kg
06/15/21 14:59
1
Trichloroethene
0.0013
U
0.0050
0.0013
mg/Kg
06/15/21 14:59
1
Methyl acetate
0.0050
U
0.025
0.0050
mg/Kg
06/15/21 14:59
1
Trichlorofluoromethane
0.0012
U
0.0050
0.0012
mg/Kg
06/15/21 14:59
1
Vinyl chloride
0.0015
U
0.0050
0.0015
mg/Kg
06/15/21 14:59
1
Xylenes, Total
0.0011
U
0.010
0.0011
mg/Kg
06/15/21 14:59
1
MB
MB
Surrogate %Recovery
Qualifier
Limits
Prepared
Analyzed
Dil Fac
Toluene-d8 (Surr)
97
65 - 130
06115121 14:59
1
1,2-Dichloroethane-d4 (Surr)
95
65- 130
06115121 14:59
1
Dibromofluoromethane (Surr)
101
65 - 130
06115121 14:59
1
4-Bromofluorobenzene (Surr)
92
65 - 130
06115121 14:59
1
Lab Sample ID: LCS 680-672839/3
Client Sample ID:
Lab Control Sample
Matrix: Solid
Prep Type: Total/NA
Analysis Batch: 672839
Spike
LCS LCS
%Rec.
Analyte
Added
Result Qualifier
Unit D %Rec
Limits
Acetone
0.250
0.300
mg/Kg 120
10 -150
Benzene
0.0500
0.0491
mg/Kg 98
70 -130
Bromoform
0.0500
0.0565
mg/Kg 113
68 -130
Bromomethane
0.0500
0.0494
mg/Kg 99
70 -130
2-Butanone (MEK)
0.250
0.289
mg/Kg 115
40 -150
Carbon disulfide
0.0500
0.0459
mg/Kg 92
70 -130
Carbon tetrachloride
0.0500
0.0445
mg/Kg 89
70 -130
Chlorobenzene
0.0500
0.0491
mg/Kg 98
70 -130
Eurofins TestAmerica, Savannah
Page 19 of 45 6/16/2021

QC Sample Results
Client: Geosyntec Consultants, Inc.
Project/Site: Kettler - Wilmington, NC
Method: 8260D - Volatile Organic Compounds by GC/MS (Continued)
Lab Sample ID: LCS 680-672839/3
Matrix: Solid
Analysis Batch: 672839
Job ID: 680-199936-1
Client Sample ID: Lab Control Sample
Prep Type: Total/NA
Spike
LCS LCS
%Rec.
Analyte
Added
Result Qualifier
Unit
D %Rec
Limits
Chloroethane
0.0500
0.0444
mg/Kg
89
70 -130
Chloroform
0.0500
0.0497
mg/Kg
99
70 -130
Chlorodibromomethane
0.0500
0.0551
mg/Kg
110
64 -133
Chloromethane
0.0500
0.0669 *+
mg/Kg
134
70 -130
1,2-Dibromo-3-Chloropropane
0.0500
0.0570
mg/Kg
114
42 -145
1,2-Dibromoethane
0.0500
0.0577
mg/Kg
115
48-150
1,2-Dichlorobenzene
0.0500
0.0483
mg/Kg
97
70 -130
1,3-Dichlorobenzene
0.0500
0.0477
mg/Kg
95
70 -130
1,4-Dichlorobenzene
0.0500
0.0479
mg/Kg
96
70 -130
cis-1,2-Dichloroethene
0.0500
0.0486
mg/Kg
97
70 -130
Dichlorobromomethane
0.0500
0.0504
mg/Kg
101
70 -130
Dichlorodifluoromethane
0.0500
0.0352
mg/Kg
70
43 -131
1,1-Dichloroethane
0.0500
0.0470
mg/Kg
94
70-130
1,2-Dichloroethane
0.0500
0.0510
mg/Kg
102
68 -139
cis-1,3-Dichloropropene
0.0500
0.0518
mg/Kg
104
70 -130
1,1-Dichloroethene
0.0500
0.0461
mg/Kg
92
69-130
1,2-Dichloropropane
0.0500
0.0510
mg/Kg
102
70 -130
Ethylbenzene
0.0500
0.0475
mg/Kg
95
70 -130
2-Hexanone
0.250
0.305
mg/Kg
122
30 -150
Isopropylbenzene
0.0500
0.0475
mg/Kg
95
70 -130
Methylene Chloride
0.0500
0.0498
mg/Kg
100
54 -149
4-Methyl-2-pentanone (MIBK)
0.250
0.291
mg/Kg
116
34 -150
Methyl tert-butyl ether
0.0500
0.0600
mg/Kg
120
70 -130
Styrene
0.0500
0.0489
mg/Kg
98
70 -130
1,1,2,2-Tetrachloroethane
0.0500
0.0566
mg/Kg
113
64-130
Tetrachloroethene
0.0500
0.0507
mg/Kg
101
70 -130
Toluene
0.0500
0.0498
mg/Kg
100
70 -130
trans- 1,2-Dichloroethene
0.0500
0.0499
mg/Kg
100
67-130
o-Xylene
0.0500
0.0479
mg/Kg
96
70 -130
trans- 1,3-Dichloropropene
0.0500
0.0523
mg/Kg
105
54 -150
1,2,4-Trichlorobenzene
0.0500
0.0532
mg/Kg
106
70 -130
m-Xylene & p-Xylene
0.0500
0.0475
mg/Kg
95
70 -130
1,1,1-Trichloroethane
0.0500
0.0455
mg/Kg
91
70-130
1,1,2-Trichloroethane
0.0500
0.0556
mg/Kg
111
56-146
Trichloroethene
0.0500
0.0491
mg/Kg
98
70 -130
Methyl acetate
0.100
0.113
mg/Kg
113
22 -150
Trichlorofluoromethane
0.0500
0.0406
mg/Kg
81
70 -130
Vinyl chloride
0.0500
0.0439
mg/Kg
88
70 -130
Xylenes, Total
0.100
0.0954
mg/Kg
95
70 -130
LCS LCS
Surrogate
%Recovery Qualifier
Limits
Toluene-d8 (Surr)
94
65 - 130
1,2-Dichloroethane-d4 (Surr)
101
65- 130
Dibromofluoromethane (Surr)
102
65 - 130
4-Bromofluorobenzene (Surr)
92
65 -130
0
Eurofins TestAmerica, Savannah
Page 20 of 45 6/16/2021

QC Sample Results
Client: Geosyntec Consultants, Inc.
Job ID:
680-199936-1
Project/Site: Kettler - Wilmington, NC
Method: 8260D - Volatile Organic Compounds by GUMS (Continued)
Lab Sample ID: LCSD 680-672839/4
Client Sample ID: Lab Control
Sample Dup
Matrix: Solid
Prep Type: Total/NA
Analysis Batch: 672839
Spike
LCSD
LCSD
%Rec.
RPD
Analyte
Added
Result
Qualifier Unit
D %Rec
Limits
RPD
Limit
Acetone
0.250
0.299
mg/Kg
120
10 -150
0
50
Benzene
0.0500
0.0482
mg/Kg
96
70 -130
2
30
Bromoform
0.0500
0.0579
mg/Kg
116
68 -130
3
30
Bromomethane
0.0500
0.0505
mg/Kg
101
70 -130
2
30
2-Butanone (MEK)
0.250
0.291
mg/Kg
116
40 -150
1
30
Carbon disulfide
0.0500
0.0450
mg/Kg
90
70 -130
2
30
Carbon tetrachloride
0.0500
0.0438
mg/Kg
88
70 -130
2
30
Chlorobenzene
0.0500
0.0500
mg/Kg
100
70 -130
2
30
Chloroethane
0.0500
0.0459
mg/Kg
92
70 -130
3
30
Chloroform
0.0500
0.0496
mg/Kg
99
70 -130
0
30
Chlorodibromomethane
0.0500
0.0551
mg/Kg
110
64 -133
0
30
Chloromethane
0.0500
0.0680+
mg/Kg
136
70 -130
2
30
1,2-Dibromo-3-Chloropropane
0.0500
0.0570
mg/Kg
114
42 -145
0
30
1,2-Dibromoethane
0.0500
0.0578
mg/Kg
116
48-150
0
30
1,2-Dichlorobenzene
0.0500
0.0493
mg/Kg
99
70 -130
2
30
1,3-Dichlorobenzene
0.0500
0.0480
mg/Kg
96
70 -130
1
30
1,4-Dichlorobenzene
0.0500
0.0488
mg/Kg
98
70 -130
2
30
cis-1,2-Dichloroethene
0.0500
0.0484
mg/Kg
97
70 -130
1
30
Dichlorobromomethane
0.0500
0.0495
mg/Kg
99
70 -130
2
30
Dichlorodifluoromethane
0.0500
0.0361
mg/Kg
72
43 -131
3
30
1,1-Dichloroethane
0.0500
0.0476
mg/Kg
95
70-130
1
30
1,2-Dichloroethane
0.0500
0.0499
mg/Kg
100
68 -139
2
30
cis-1,3-Dichloropropene
0.0500
0.0521
mg/Kg
104
70 -130
0
30
1,1-Dichloroethene
0.0500
0.0455
mg/Kg
91
69-130
1
50
1,2-Dichloropropane
0.0500
0.0509
mg/Kg
102
70 -130
0
30
Ethylbenzene
0.0500
0.0479
mg/Kg
96
70 -130
1
30
2-Hexanone
0.250
0.299
mg/Kg
119
30 -150
2
30
Isopropylbenzene
0.0500
0.0472
mg/Kg
94
70 -130
1
30
Methylene Chloride
0.0500
0.0501
mg/Kg
100
54 -149
1
30
4-Methyl-2-pentanone (MIBK)
0.250
0.291
mg/Kg
116
34 -150
0
30
Methyl tert-butyl ether
0.0500
0.0599
mg/Kg
120
70 -130
0
30
Styrene
0.0500
0.0503
mg/Kg
101
70 -130
3
30
1,1,2,2-Tetrachloroethane
0.0500
0.0580
mg/Kg
116
64-130
2
30
Tetrachloroethene
0.0500
0.0489
mg/Kg
98
70 -130
4
30
Toluene
0.0500
0.0500
mg/Kg
100
70 -130
0
30
trans- 1,2-Dichloroethene
0.0500
0.0484
mg/Kg
97
67-130
3
30
o-Xylene
0.0500
0.0481
mg/Kg
96
70 -130
1
30
trans- 1,3-Dichloropropene
0.0500
0.0524
mg/Kg
105
54.150
0
30
1,2,4-Trichlorobenzene
0.0500
0.0546
mg/Kg
109
70 -130
3
30
m-Xylene & p-Xylene
0.0500
0.0478
mg/Kg
96
70 -130
1
30
1,1,1-Trichloroethane
0.0500
0.0445
mg/Kg
89
70-130
2
30
1,1,2-Trichloroethane
0.0500
0.0559
mg/Kg
112
56-146
1
30
Trichloroethene
0.0500
0.0481
mg/Kg
96
70 -130
2
30
Methyl acetate
0.100
0.115
mg/Kg
115
22 -150
2
30
Trichlorofluoromethane
0.0500
0.0418
mg/Kg
84
70 -130
3
30
Vinyl chloride
0.0500
0.0447
mg/Kg
89
70 -130
2
30
Xylenes, Total
0.100
0.0959
mg/Kg
96
70 -130
1
30
Eurofins TestAmerica, Savannah
Page 21 of 45 6/16/2021

QC Sample Results
Client: Geosyntec Consultants, Inc.
Job ID: 680-199936-1
Project/Site: Kettler - Wilmington, NC
Method: 8260D - Volatile Organic Compounds by GUMS (Continued)
Lab Sample ID: LCSD 680-672839/4
Client Sample ID: Lab Control Sample
Dup
Matrix: Solid
Prep Type: Total/NA
Analysis Batch: 672839
LCSD LCSD
Surrogate %Recovery Qualifier
Limits
Toluene-d8 (Surr)
96
65 - 130
•
1,2-Dichloroethane-d4 (Surr)
102
65- 130
Dibromofluoromethane (Surr)
102
65 - 130
4-Bromofluorobenzene (Surr)
92
65- 130
Method: 8270E LL - Semivolatile
Organic Compounds
by GUMS - Low Level
Lab Sample ID: MB 680-672582/7-A
Client Sample ID: Method Blank
Matrix: Solid
Prep Type: Total/NA
Analysis Batch: 672617
Prep Batch: 672582
MB
MB
Analyte
Result
Qualifier
RL
MDL
Unit
D Prepared
Analyzed
Dil Fac
Acenaphthene
0.0032
U
0.0064
0.0032
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
Acenaphthylene
0.0032
U
0.0064
0.0032
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
Acetophenone
0.0065
U
0.063
0.0065
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
Anthracene
0.0032
U
0.0064
0.0032
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
Atrazine
0.0073
U
0.063
0.0073
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
Benzaldehyde
0.0095
U
0.063
0.0095
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
Benzo[a]anthracene
0.0032
U
0.0064
0.0032
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
Benzo[a]pyrene
0.0011
U
0.0064
0.0011
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
Benzo[b]fluoranthene
0.0032
U
0.0064
0.0032
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
Benzo[g,h,i]perylene
0.0032
U
0.0064
0.0032
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
Benzo[k]fluoranthene
0.0019
U
0.0064
0.0019
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
1,1'-Biphenyl
0.0069
U
0.063
0.0069
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
Bis(2-chloroethoxy)methane
0.0062
U
0.063
0.0062
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
Bis(2-chloroethyl)ether
0.0062
U
0.063
0.0062
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
Bis(2-ethylhexyl) phthalate
0.0057
U
0.13
0.0057
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
4-Bromophenyl phenyl ether
0.0066
U
0.063
0.0066
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
Butyl benzyl phthalate
0.0053
U
0.063
0.0053
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
Caprolactam
0.0067
U
0.063
0.0067
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
Carbazole
0.0064
U
0.063
0.0064
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
4-Chloroaniline
0.0050
U
0.13
0.0050
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
4-Chloro-3-methylphenol
0.0067
U
0.063
0.0067
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
2-Chloronaphthalene
0.0057
U
0.063
0.0057
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
2-Chlorophenol
0.0051
U
0.063
0.0051
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
4-Chlorophenyl phenyl ether
0.0061
U
0.063
0.0061
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
Chrysene
0.0032
U
0.0064
0.0032
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
Dibenz(a,h)anthracene
0.0032
U
0.0064
0.0032
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
Dibenzofuran
0.0064
U
0.063
0.0064
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
3,3'-Dichlorobenzidine
0.016
U
0.13
0.016
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
2,4-Dichlorophenol
0.0069
U
0.063
0.0069
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
Diethyl phthalate
0.0071
U
0.063
0.0071
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
2,4-Dimethylphenol
0.0073
U
0.13
0.0073
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
Dimethyl phthalate
0.0072
U
0.063
0.0072
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
Di-n-butyl phthalate
0.0371
J
0.32
0.016
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
4,6-Dinitro-2-methylphenol
0.016
U
0.32
0.016
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
2,4-Dinitrophenol
0.12
U
0.63
0.12
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
2,4-Dinitrotoluene
0.0072
U
0.063
0.0072
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
2,6-Dinitrotoluene
0.0075
U
0.063
0.0075
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
Eurofins TestAmerica,
Savannah
Page 22 of 45 6/16/2021

QC Sample Results
Client: Geosyntec Consultants, Inc.
Job ID: 680-199936-1
Project/Site: Kettler - Wilmington, NC
Method: 8270E LL - Semivolatile
Organic Compounds by GC/MS
- Low Level (Continued)
Lab Sample ID: MB 680-672582/7-A
Client Sample ID: Method Blank
Matrix: Solid
Prep Type: Total/NA
Analysis Batch: 672617
Prep Batch: 672582
MB
MB
Analyte
Result
Qualifier
RL
MDL
Unit
D Prepared
Analyzed
Dil Fac
Di-n-octyl phthalate
0.0034
U
0.063
0.0034
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
Fluoranthene
0.0032
U
0.0064
0.0032
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
Fluorene
0.0032
U
0.0064
0.0032
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
Hexachlorobenzene
0.0073
U
0.063
0.0073
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
Hexachlorobutadiene
0.0065
U
0.063
0.0065
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
Hexachlorocyclopentadiene
0.0035
U
0.13
0.0035
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
Hexachloroethane
0.0055
U
0.063
0.0055
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
Indeno[1,2,3-cd]pyrene
0.0032
U
0.0064
0.0032
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
Isophorone
0.0067
U
0.063
0.0067
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
2-Methyl naphtha lene
0.0032
U
0.0064
0.0032
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
2-Methylphenol
0.0060
U
0.063
0.0060
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
3 & 4 Methylphenol
0.0070
U
0.063
0.0070
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
Naphthalene
0.0032
U
0.0064
0.0032
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
2-Nitroaniline
0.0067
U
0.32
0.0067
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
3-Nitroaniline
0.0064
U
0.32
0.0064
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
4-Nitroaniline
0.0079
U
0.32
0.0079
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
Nitrobenzene
0.0063
U
0.063
0.0063
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
2-Nitrophenol
0.0055
U
0.063
0.0055
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
4-Nitrophenol
0.070
U
0.32
0.070
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
N-Nitrosodi-n-propylamine
0.0072
U
0.063
0.0072
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
N-Nitrosodiphenylamine
0.0058
U
0.063
0.0058
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
2,2'-oxybis[l-chloropropane]
0.0069
U
0.063
0.0069
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
Pentachlorophenol
0.064
U
0.32
0.064
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
Phenanthrene
0.0023
U
0.0064
0.0023
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
Phenol
0.0062
U
0.063
0.0062
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
Pyrene
0.0032
U
0.0064
0.0032
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
2,4,5-Trichlorophenol
0.0073
U
0.063
0.0073
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
2,4,6-Trichlorophenol
0.0075
U
0.063
0.0075
mg/Kg
06/13/21 14:10
06/14/21 20:15
1
MB
MB
Surrogate %Recovery
Qualifier
Limits
Prepared
Analyzed
Dil Fac
2-Fluorobiphenyl
39
11- 130
06113121 14:10
06114121 20:15
1
2-Fluorophenol (Surr)
40
10 - 130
06113121 14:10
06114121 20:15
1
Nitrobenzene-d5 (Surr)
40
18 - 130
06113121 14:10
06114121 20:15
1
Phenol-d5 (Surr)
40
10- 130
06113121 14:10
06114121 20:15
1
Terphenyl-d14 (Surr)
52
27- 130
06113121 14:10
06114121 20:15
1
2,4, 6-Tribromophenol (Surr)
49
24 - 130
06113121 14:10
06114121 20:15
1
Lab Sample ID: LCS 680-672582/8-A
Client Sample ID:
Lab Control Sample
Matrix: Solid
Prep Type: Total/NA
Analysis Batch: 672617
Prep Batch: 672582
Spike
LCS LCS
%Rec.
Analyte
Added
Result Qualifier
Unit
D %Rec
Limits
Acenaphthene
0.631
0.367
mg/Kg
58
13 -130
Acenaphthylene
0.631
0.395
mg/Kg
63
10 -130
Acetophenone
0.631
0.361
mg/Kg
57
14 -130
Anthracene
0.631
0.402
mg/Kg
64
18 -130
Atrazine
0.631
0.427
mg/Kg
68
10 -130
Benzaldehyde
0.631
0.351
mg/Kg
56
10 -130
Eurofins TestAmerica, Savannah
Page 23 of 45 6/16/2021

QC Sample Results
Client: Geosyntec Consultants, Inc.
Job ID: 680-199936-1
Project/Site: Kettler - Wilmington, NC
Method: 8270E LL - Semivolatile Organic Compounds
by GUMS
- Low Level (Continued)
Lab Sample ID: LCS 680-672582/8-A
Client Sample ID: Lab Control Sample
Matrix: Solid
Prep Type: Total/NA
Analysis Batch: 672617
Prep Batch: 672582
Spike
LCS LCS
%Rec.
Analyte
Added
Result Qualifier
Unit
D %Rec
Limits
Benzo[a]anthracene
0.631
0.434
mg/Kg
69
16 -130
Benzo[a]pyrene
0.631
0.499
mg/Kg
79
18 -139
Benzo[b]fluoranthene
0.631
0.445
mg/Kg
71
18 -130
Benzo[g,h,i]perylene
0.631
0.430
mg/Kg
68
21 -130
Benzo[k]fluoranthene
0.631
0.430
mg/Kg
68
22 -130
1,1'-Biphenyl
0.631
0.365
mg/Kg
58
10-130
Bis(2-chloroethoxy)methane
0.631
0.374
mg/Kg
59
15 -130
Bis(2-chloroethyl)ether
0.631
0.333
mg/Kg
53
11 -130
Bis(2-ethylhexyl) phthalate
0.631
0.440
mg/Kg
70
29 -130
4-Bromophenyl phenyl ether
0.631
0.396
mg/Kg
63
13 -130
Butyl benzyl phthalate
0.631
0.433
mg/Kg
69
30 -130
Caprolactam
0.631
0.380
mg/Kg
60
10 -130
Carbazole
0.631
0.467
mg/Kg
74
23 -171
4-Chloroaniline
0.631
0.276
mg/Kg
44
10 -130
4-Chloro-3-methylphenol
0.631
0.416
mg/Kg
66
18 -130
2-Chloronaphthalene
0.631
0.359
mg/Kg
57
14 -130
2-Chlorophenol
0.631
0.388
mg/Kg
62
10 -130
4-Chlorophenyl phenyl ether
0.631
0.394
mg/Kg
62
15 -130
Chrysene
0.631
0.414
mg/Kg
66
12 -130
Dibenz(a,h)anthracene
0.631
0.435
mg/Kg
69
17-130
Dibenzofuran
0.631
0.384
mg/Kg
61
20 -130
3,3'-Dichlorobenzidine
2.52
1.65 E
mg/Kg
65
10 - 200
2,4-Dichlorophenol
0.631
0.400
mg/Kg
63
10 -130
Diethyl phthalate
0.631
0.416
mg/Kg
66
24 -130
2,4-Dimethylphenol
0.631
0.388
mg/Kg
61
10 -134
Dimethyl phthalate
0.631
0.394
mg/Kg
63
20 -130
Di-n-butyl phthalate
0.631
0.485
mg/Kg
77
10 -130
4,6-Dinitro-2-methylphenol
1.26
0.848
mg/Kg
67
14 -130
2,4-Dinitrophenol
1.26
0.730
mg/Kg
58
10 -130
2,4-Dinitrotoluene
0.631
0.414
mg/Kg
66
19-130
2,6-Dinitrotoluene
0.631
0.389
mg/Kg
62
18-130
Di-n-octyl phthalate
0.631
0.433
mg/Kg
69
10 -130
Fluoranthene
0.631
0.425
mg/Kg
67
14 -130
Fluorene
0.631
0.373
mg/Kg
59
10 -130
Hexachlorobenzene
0.631
0.420
mg/Kg
67
12 -130
Hexachlorobutadiene
0.631
0.337
mg/Kg
53
10 -130
Hexachlorocyclopentadiene
0.631
0.429
mg/Kg
68
10 -130
Hexachloroethane
0.631
0.331
mg/Kg
52
10 -130
Indeno[1,2,3-cd]pyrene
0.631
0.391
mg/Kg
62
11 -130
Isophorone
0.631
0.368
mg/Kg
58
14 -130
2-Methylnaphthalene
0.631
0.364
mg/Kg
58
20 -130
2-Methylphenol
0.631
0.389
mg/Kg
62
10 -130
Naphthalene
0.631
0.342
mg/Kg
54
10 -130
2-Nitroaniline
0.631
0.413
mg/Kg
65
21 -130
3-Nitroaniline
0.631
0.389
mg/Kg
62
10 -134
4-Nitroaniline
0.631
0.437
mg/Kg
69
14 -143
Nitrobenzene
0.631
0.348
mg/Kg
55
11 -130
2-Nitrophenol
0.631
0.363
mg/Kg
58
10 -130
4-Nitrophenol
1.26
0.886
mg/Kg
70
11 -130
Eurofins TestAmerica, Savannah
Page 24 of 45 6/16/2021

QC Sample Results
Client: Geosyntec Consultants, Inc.
Job ID: 680-199936-1
Project/Site: Kettler - Wilmington, NC
Method: 8270E LL - Semivolatile
Organic Compounds by GC/MS
- Low Level (Continued)
Lab Sample ID: LCS 680-672582/8-A
Client Sample
ID: Lab Control Sample
Matrix: Solid
Prep Type: Total/NA
Analysis Batch: 672617
Prep Batch: 672582
Spike
LCS
LCS
%Rec.
Analyte
Added
Result
Qualifier
Unit
D
%Rec
Limits
N-Nitrosodi-n-propylamine
0.631
0.373
mg/Kg
59
16-130
N-Nitrosodiphenylamine
0.631
0.395
mg/Kg
63
22 -130
2,2'-oxybis[l-chloropropane]
0.631
0.335
mg/Kg
53
10 -130
Pentachlorophenol
1.26
0.967
mg/Kg
77
10 -130
Phenanthrene
0.631
0.403
mg/Kg
64
18 -130
Phenol
0.631
0.402
mg/Kg
64
10 -130
Pyrene
0.631
0.413
mg/Kg
65
11 -136
2,4,5-Trichlorophenol
0.631
0.408
mg/Kg
65
16 -130
2,4,6-Trichlorophenol
0.631
0.409
mg/Kg
65
15 -130
LCS
LCS
Surrogate
%Recovery
Qualifier
Limits
2-Fluorobiphenyl
53
11 - 130
2-Fluorophenol (Surr)
54
10 - 130
Nitrobenzene-d5 (Surr)
52
18 - 130
Phenol-d5 (Surr)
58
10 - 130
Terphenyl-d14 (Surr)
61
27- 130
2,4,6-Tribromophenol (Surr)
66
24- 130
Lab Sample ID: 680-199936-1 MS
Client Sample ID: Test Pit - 3
Matrix: Soil
Prep Type: Total/NA
Analysis Batch: 672617
Prep Batch: 672582
Sample
Sample
Spike
MS
MS
%Rec.
Analyte
Result
Qualifier
Added
Result
Qualifier
Unit
D
%Rec
Limits
Acenaphthene
0.97
F1
0.782
0.980
F1
mg/Kg
1
13-130
Acenaphthylene
0.053
0.782
0.385
mg/Kg
43
10 -130
Acetophenone
0.041
U
0.782
0.304
J
mg/Kg
39
14 -130
Anthracene
0.63
F1
0.782
0.766
F1
mg/Kg
17
18-130
Atrazine
0.046
U
0.782
0.294
J
mg/Kg
#
38
10 -130
Benzaldehyde
0.062
J
0.782
0.346
J
mg/Kg
#
36
10 -130
Benzo[a]anthracene
0.60
F1
0.782
0.756
mg/Kg
20
16 -130
Benzo[a]pyrene
0.51
0.782
0.754
mg/Kg
31
18 -139
Benzo[b]fluoranthene
0.75
F1
0.782
0.815
F1
mg/Kg
8
18-130
Benzo[g,h,i]perylene
0.13
F1
0.782
0.347
mg/Kg
28
21 -130
Benzo[k]fluoranthene
0.29
0.782
0.634
mg/Kg
44
22 -130
1,1'-Biphenyl
0.058
J
0.782
0.383
J
mg/Kg
41
10-130
Bis(2-chloroethoxy)methane
0.039
U
0.782
0.325
J
mg/Kg
42
15 -130
Bis(2-chloroethyl)ether
0.039
U
0.782
0.317
J
mg/Kg
41
11 -130
Bis(2-ethylhexyl) phthalate
0.036
U
0.782
0.381
J
mg/Kg
49
29 -130
4-Bromophenyl phenyl ether
0.042
U
0.782
0.362
J
mg/Kg
46
13 -130
Butyl benzyl phthalate
0.033
U
0.782
0.346
J
mg/Kg
44
30 -130
Caprolactam
0.042
U
0.782
0.399
mg/Kg
51
10 -130
Carbazole
0.41
F1
0.782
0.601
mg/Kg
3�1
24
23 -171
4-Chloroaniline
0.031
U F2 F1
0.782
0.171
J
mg/Kg
#
22
10-130
4-Chloro-3-methylphenol
0.042
U
0.782
0.296
J
mg/Kg
#
38
18 -130
2-Chloronaphthalene
0.036
U
0.782
0.337
J
mg/Kg
43
14 -130
2-Chlorophenol
0.032
U
0.782
0.301
J
mg/Kg
38
10 -130
4-Chlorophenyl phenyl ether
0.039
U
0.782
0.374
J
mg/Kg
48
15 -130
Chrysene
0.65
F1
0.782
0.815
mg/Kg
21
12 -130
Eurofins TestAmerica, Savannah
Page 25 of 45 6/16/2021

QC Sample Results
Client: Geosyntec Consultants, Inc.
Job ID: 680-199936-1
Project/Site: Kettler - Wilmington, NC
Method: 8270E LL - Semivolatile
Organic Compounds by GUMS
- Low Level (Continued)
Lab Sample ID: 680-199936-1 MS
Client Sample ID: Test Pit - 3
Matrix: Soil
Prep Type: Total/NA
Analysis Batch: 672617
Prep Batch: 672582
Sample
Sample
Spike
MS
MS
%Rec.
Analyte
Result
Qualifier
Added
Result
Qualifier
Unit
D
%Rec
Limits
Dibenz(a,h)anth race ne
0.050
0.782
0.292
mg/Kg
#
31
17-130
Dibenzofuran
0.59
F1
0.782
0.752
mg/Kg
20
20-130
3,3'-Dichlorobenzidine
0.10
U F1
3.13
0.221
J F1
mg/Kg
7
10-200
2,4-Dichlorophenol
0.043
U
0.782
0.326
J
mg/Kg
42
10 -130
Diethyl phthalate
0.045
U
0.782
0.358
J
mg/Kg
46
24 -130
2,4-Dimethylphenol
0.046
U
0.782
0.329
J
mg/Kg
42
10 -134
Dimethyl phthalate
0.045
U
0.782
0.348
J
mg/Kg
45
20 -130
Di-n-butyl phthalate
0.10
U
0.782
0.480
J
mg/Kg
61
10 -130
4,6-Dinitro-2-methylphenol
0.10
U F1
1.56
0.10
U F1
mg/Kg
0
14 -130
2,4-Dinitrophenol
0.78
U F1
1.56
0.76
U F1
mg/Kg
0
10-130
2,4-Dinitrotoluene
0.045
U
0.782
0.272
J
mg/Kg
35
19-130
2,6-Dinitrotoluene
0.048
U
0.782
0.261
J
mg/Kg
#
33
18-130
Di-n-octyl phthalate
0.022
U
0.782
0.348
J
mg/Kg
#
44
10 -130
Fluoranthene
2.6
F1
0.782
2.19
F1
mg/Kg
#
-59
14 -130
Fluorene
0.76
0.782
0.841
mg/Kg
10
10 -130
Hexachlorobenzene
0.046
U
0.782
0.365
J
mg/Kg
47
12 -130
Hexachlorobutadiene
0.041
U
0.782
0.308
J
mg/Kg
39
10 -130
Hexachlorocyclopentadiene
0.022
U F1
0.782
0.022
U F1
mg/Kg
0
10-130
Hexachloroethane
0.035
U F2 F1
0.782
0.124
J
mg/Kg
16
10 -130
Indeno[1,2,3-cd]pyrene
0.11
F2 F1
0.782
0.321
mg/Kg
28
11 -130
Isophorone
0.042
U
0.782
0.336
J
mg/Kg
43
14 -130
2-Methylnaphthalene
0.16
0.782
0.438
mg/Kg
36
20 -130
2-Methylphenol
0.038
U
0.782
0.284
J
mg/Kg
36
10 -130
Naphthalene
0.45
0.782
0.608
mg/Kg
3�
21
10 -130
2-Nitroaniline
0.042
U
0.782
0.306
J
mg/Kg
3�
39
21 -130
3-Nitroaniline
0.040
U
0.782
0.157
J
mg/Kg
3�
20
10 -134
4-Nitroaniline
0.050
U F1
0.782
0.049
U F1
mg/Kg
0
14 -143
Nitrobenzene
0.040
U
0.782
0.249
J
mg/Kg
32
11 -130
2-Nitrophenol
0.035
U
0.782
0.146
J
mg/Kg
19
10 -130
4-Nitrophenol
0.44
U F2
1.56
0.886
J
mg/Kg
57
11 -130
N-Nitrosodi-n-propylamine
0.045
U
0.782
0.288
J
mg/Kg
37
16-130
N-Nitrosodiphenylamine
0.037
U
0.782
0.383
J
mg/Kg
49
22 -130
2,2'-oxybis[l-chloropropane]
0.043
U
0.782
0.253
J
mg/Kg
32
10 -130
Pentachlorophenol
0.40
U
1.56
0.700
J
mg/Kg
45
10 -130
Phenanthrene
1.2
F1
0.782
1.19
F1
mg/Kg
-3
18-130
Phenol
0.039
U
0.782
0.338
J
mg/Kg
43
10 -130
Pyrene
1.7
F1
0.782
1.58
F1
mg/Kg
-15
11 -136
2,4,5-Trichlorophenol
0.046
U
0.782
0.330
J
mg/Kg
42
16 -130
2,4,6-Trichlorophenol
0.048
U
0.782
0.359
J
mg/Kg
3�
46
15 -130
MS
MS
Surrogate
%Recovery
Qualifier
Limits
2-Fluorobiphenyl
39
11 - 130
2-Fluorophenol (Surr)
38
10 - 130
Nitrobenzene-d5 (Surr)
32
18 - 130
Phenol-d5 (Surr)
42
10 -130
Terphenyl-d14 (Surr)
42
27-130
2,4,6-Tribromophenol (Surr)
49
24-130
0
Eurofins TestAmerica, Savannah
Page 26 of 45 6/16/2021

QC Sample Results
Client: Geosyntec Consultants, Inc.
Job ID: 680-199936-1
Project/Site: Kettler - Wilmington, NC
Method: 8270E LL - Semivolatile
Organic
Compounds
by GC/MS
- Low Level (Continued)
Lab Sample ID: 680-199936-1
MSD
Client Sample ID:
Test Pit - 3
Matrix: Soil
Prep Type: Total/NA
Analysis Batch: 672617
Prep Batch: 672582
Sample
Sample
Spike
MSD
MSD
%Rec.
RPD
Analyte
Result
Qualifier
Added
Result
Qualifier
Unit
D
%Rec
Limits
RPD
Limit
Acenaphthene
0.97
F1
0.788
0.952
F1
mg/Kg
3:�
-2
13-130
3
50
Acenaphthylene
0.053
0.788
0.302
mg/Kg
32
10 -130
24
50
Acetophenone
0.041
U
0.788
0.240
J
mg/Kg
30
14 -130
24
50
Anthracene
0.63
F1
0.788
0.816
mg/Kg
#
23
18 -130
6
50
Atrazine
0.046
U
0.788
0.239
J
mg/Kg
#
30
10 -130
21
50
Benzaldehyde
0.062
J
0.788
0.281
J
mg/Kg
#
28
10 -130
21
50
Benzo[a]anthracene
0.60
F1
0.788
0.713
F1
mg/Kg
14
16-130
6
50
Benzo[a]pyrene
0.51
0.788
0.738
mg/Kg
28
18 -139
2
50
Benzo[b]fluoranthene
0.75
F1
0.788
0.916
mg/Kg
21
18 -130
12
50
Benzo[g,h,i]perylene
0.13
F1
0.788
0.241
F1
mg/Kg
�
15
21 -130
36
50
Benzo[k]fluoranthene
0.29
0.788
0.575
mg/Kg
�
37
22 -130
10
50
1,1'-Biphenyl
0.058
J
0.788
0.318
J
mg/Kg
�
33
10-130
18
50
Bis(2-chloroethoxy)methane
0.039
U
0.788
0.221
J
mg/Kg
28
15 -130
38
50
Bis(2-chloroethyl)ether
0.039
U
0.788
0.199
J
mg/Kg
25
11 -130
46
50
Bis(2-ethylhexyl) phthalate
0.036
U
0.788
0.484
J
mg/Kg
61
29 -130
24
50
4-Bromophenyl phenyl ether
0.042
U
0.788
0.303
J
mg/Kg
38
13 -130
18
50
Butyl benzyl phthalate
0.033
U
0.788
0.239
J
mg/Kg
30
30 -130
37
50
Caprolactam
0.042
U
0.788
0.273
J
mg/Kg
35
10 -130
37
50
Carbazole
0.41
F1
0.788
0.574
F1
mg/Kg
#
20
23 -171
5
50
4-Chloroaniline
0.031
U F2 F1
0.788
0.0681
J F2 F1
mg/Kg
#
9
10-130
86
50
4-Chloro-3-methylphenol
0.042
U
0.788
0.272
J
mg/Kg
#
35
18 -130
8
50
2-Chloronaphthalene
0.036
U
0.788
0.246
J
mg/Kg
31
14 -130
31
50
2-Chlorophenol
0.032
U
0.788
0.233
J
mg/Kg
30
10 -130
25
50
4-Chlorophenyl phenyl ether
0.039
U
0.788
0.291
J
mg/Kg
37
15 -130
25
50
Chrysene
0.65
F1
0.788
0.739
F1
mg/Kg
11
12 -130
10
50
Dibenz(a,h)anthracene
0.050
0.788
0.187
mg/Kg
17
17-130
44
50
Dibenzofuran
0.59
F1
0.788
0.692
F1
mg/Kg
12
20-130
8
50
3,3'-Dichlorobenzidine
0.10
U F1
3.15
0.10
U F1
mg/Kg
0
10-200
NC
50
2,4-Dichlorophenol
0.043
U
0.788
0.227
J
mg/Kg
29
10 -130
36
50
Diethyl phthalate
0.045
U
0.788
0.289
J
mg/Kg
37
24 -130
21
50
2,4-Dimethylphenol
0.046
U
0.788
0.255
J
mg/Kg
32
10 -134
25
50
Dimethyl phthalate
0.045
U
0.788
0.271
J
mg/Kg
34
20 -130
25
50
Di-n-butyl phthalate
0.10
U
0.788
0.386
J
mg/Kg
1'�
49
10 -130
22
50
4,6-Dinitro-2-methylphenol
0.10
U F1
1.58
0.10
U F1
mg/Kg
#
0
14 -130
NC
50
2,4-Dinitrophenol
0.78
U F1
1.58
0.77
U F1
mg/Kg
#
0
10-130
NC
50
2,4-Dinitrotoluene
0.045
U
0.788
0.199
J
mg/Kg
#
25
19-130
31
50
2,6-Dinitrotoluene
0.048
U
0.788
0.190
J
mg/Kg
24
18-130
31
50
Di-n-octyl phthalate
0.022
U
0.788
0.240
J
mg/Kg
30
10 -130
37
50
Fluoranthene
2.6
F1
0.788
2.58
F1
mg/Kg
-8
14 -130
17
50
Fluorene
0.76
0.788
0.879
mg/Kg
15
10 -130
4
50
Hexachlorobenzene
0.046
U
0.788
0.299
J
mg/Kg
38
12 -130
20
50
Hexachlorobutadiene
0.041
U
0.788
0.234
J
mg/Kg
30
10 -130
27
50
Hexachlorocyclopentadiene
0.022
U F1
0.788
0.022
U F1
mg/Kg
0
10-130
NC
50
Hexachloroethane
0.035
U F2 F1
0.788
0.0727
J F2 F1
mg/Kg
9
10 -130
52
50
Indeno[1,2,3-cd]pyrene
0.11
F2 F1
0.788
0.183
F2 F1
mg/Kg
#
10
11 -130
55
50
Isophorone
0.042
U
0.788
0.240
J
mg/Kg
30
14 -130
33
50
2-Methyl naphtha lene
0.16
0.788
0.398
mg/Kg
31
20 -130
10
50
2-Methylphenol
0.038
U
0.788
0.233
J
mg/Kg
30
10 -130
19
50
Eurofins TestAmerica, Savannah
Page 27 of 45 6/16/2021

QC Sample Results
Client: Geosyntec Consultants, Inc.
Project/Site: Kettler - Wilmington, NC
Job ID: 680-199936-1
Method: 8270E LL - Semivolatile Organic Compounds by GC/MS - Low Level (Continued)
Lab Sample ID: 680-199936-1 MSD
Matrix: Soil
Analysis Batch: 672617
Analyte
Sample
Result
Sample
Qualifier
Spike
Added
MSD
Result
MSD
Qualifier
Unit
Naphthalene
0.45
0.788
0.577
mg/Kg
2-Nitroaniline
0.042
U
0.788
0.271
J
mg/Kg
3-Nitroaniline
0.040
U
0.788
0.110
J
mg/Kg
4-Nitroaniline
0.050
U F1
0.788
0.049
U F1
mg/Kg
Nitrobenzene
0.040
U
0.788
0.231
J
mg/Kg
2-Nitrophenol
0.035
U
0.788
0.118
J
mg/Kg
4-Nitrophenol
0.44
U F2
1.58
0.470
J F2
mg/Kg
N-Nitrosodi-n-propylamine
0.045
U
0.788
0.257
J
mg/Kg
N-Nitrosodiphenylamine
0.037
U
0.788
0.295
J
mg/Kg
2,2'-oxybis[l-chloropropane]
0.043
U
0.788
0.230
J
mg/Kg
Pentachlorophenol
0.40
U
1.58
0.505
J
mg/Kg
Phenanthrene
1.2
F1
0.788
1.74
mg/Kg
Phenol
0.039
U
0.788
0.306
J
mg/Kg
Pyrene
1.7
F1
0.788
1.54
F1
mg/Kg
2,4,5-Trichlorophenol
0.046
U
0.788
0.237
J
mg/Kg
2,4,6-Trichlorophenol
0.048
U
0.788
0.285
J
mg/Kg
Client Sample ID: Test Pit - 3
Prep Type: Total/NA
Prep Batch: 672582
%Rec. RPD
D %Rec Limits RPD Limit
17 10-130 5 50
34 21-130 12 50
14 10-134 35 50
0 14-143 NC 50
29 11 -130 8 50
15 10-130 21 50
30 11-130 61 50
33 16-130 11 50
37 22-130 26 50
29 10-130 10 50
� 32 10-130 32 50
67 18-130 37 50
39 10-130 10 50
-19 11 -136 2 50
30 16-130 33 50
36 15-130 23 50
MSD MSD
Surrogate
%Recovery Qualifier
Limits
2-Fluorobiphenyl
29
11- 130
2-Fluorophenol (Surr)
30
10 - 130
Nitrobenzene-d5 (Surr)
26
18 - 130
Phenol-d5 (Surr)
30
10 - 130
Terphenyl-d14 (Surr)
27
27- 130
2,4,6-Tribromophenol (Surr)
34
24 - 130
Method: 8015D - Gasoline Range Organics (GRO) (GC)
Lab Sample ID: MB 680-672829/6
Matrix: Solid
Analysis Batch: 672829
MB MB
Analyte Result Qualifier
Gasoline Range Organics [C6 - C10] 2.5 U
MB MB
Surrogate %Recovery Qualifier
a,a,a-Trifluorotoluene 94
Lab Sample ID: LCS 680-672829/4
Matrix: Solid
Analysis Batch: 672829
Analyte
Gasoline Range Organics [C6 -
C 10]
LCS LCS
Surrogate %Recovery Qualifier
a,a,a-Trifluorotoluene 104
RL
10
Limits
70-131
Spike
Added
50.0
Limits
70-131
Client Sample ID: Method Blank
Prep Type: Total/NA
MDL Unit D Prepared Analyzed Dil Fac
2.5 mg/Kg 06/15/2112:56 100
Prepared Analyzed Dil Fac
06115121 12:56 100
Client Sample ID: Lab Control Sample
Prep Type: Total/NA
LCS LCS
Result Qualifier Unit
49.3 mg/Kg
%Rec.
D %Rec Limits
99 64-133
Page 28 of 45
Eurofins TestAmerica, Savannah
6/16/2021

QC Sample Results
Client: Geosyntec Consultants, Inc.
Project/Site: Kettler - Wilmington, NC
Method: 8015D - Gasoline Range Organics (GRO) (GC) (Continued)
Job ID: 680-199936-1
Lab Sample ID: LCSD 680-672829/5
Client Sample ID: Lab Control Sample Dup
Matrix: Solid
Prep Type: Total/NA
Analysis Batch: 672829
Spike LCSD LCSD
%Rec. RPD
Analyte
Added Result Qualifier Unit
D %Rec Limits RPD Limit
Gasoline Range Organics [C6 -
50.0 48.6 mg/Kg
97 64 - 133 2 50
C10]
LCSD LCSD
Surrogate %Recovery Qualifier
Limits
a,a,a-Trifluorotoluene 103
70-131
Method: 8015D - Diesel Range Organics (DRO) (GC)
Lab Sample ID: MB 680-672583/3-A Client Sample ID: Method Blank
Matrix: Solid Prep Type: Total/NA
Analysis Batch: 672713 Prep Batch: 672583
MB MB
Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac
Diesel Range Organics [C10-C28] 4.25 3.2 2.0 mg/Kg 06/13/21 14:10 06/14/21 17:59 1
MB MB
Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac
o-Terphenyl 56 15 - 139 06113121 14:10 06114121 17.59 1
Lab Sample ID: LCS 680-672583/4-A Client Sample ID: Lab Control Sample
Matrix: Solid Prep Type: Total/NA
Analysis Batch: 672713 Prep Batch: 672583
Analyte
Diesel Range Organics
[C10-C28]
LCS LCS
Surrogate %Recovery Qualifier
o-Terphenyl 65
Lab Sample ID: 680-199936-1 MS
Matrix: Soil
Analysis Batch: 672713
Sample
Sample
Analyte
Result
Qualifier
Diesel Range Organics
420
B
[C10-C28]
MS
MS
Surrogate
%Recovery
Qualifier
o-Terphenyl
163
S1+
FLab Sample ID: 680-199936-1 MSD
Matrix: Soil
Analysis Batch: 672713
Analyte
Diesel Range Organics
[C10-C28]
Spike LCS LCS
Added Result Qualifier Unit
64.0 43.5 mg/Kg
Limits
15 - 139
Spike
Added
78.8
Limits
15-139
Sample Sample Spike
Result Qualifier Added
420 B 79.0
MS MS
Result Qualifier Unit
787 4 mg/Kg
MSD MSD
Result Qualifier Unit
1090 E 4 mg/Kg
%Rec.
D %Rec Limits
68 26-133
Client Sample ID: Test Pit - 3
Prep Type: Total/NA
Prep Batch: 672583
%Rec.
D %Rec Limits
467 26-133
Client Sample ID: Test Pit - 3
Prep Type: Total/NA
Prep Batch: 672583
%Rec. RPD
D %Rec Limits RPD Limit
844 26-133 32 50
Page 29 of 45
Eurofins TestAmerica, Savannah
6/16/2021

QC Sample Results
Client: Geosyntec Consultants, Inc. Job ID: 680-199936-1
Project/Site: Kettler - Wilmington, NC
Method: 8015D - Diesel Range Organics (DRO) (GC) (Continued)
Lab Sample ID: 680-199936-1 MSD Client Sample ID: Test Pit - 3
Matrix: Soil Prep Type: Total/NA
Analysis Batch: 672713 Prep Batch: 672583
MSD MSD
Surrogate %Recovery Qualifier Limits
o-Terphenyl 198 S1+ 15-139 _
Method: 7199 - Chromium, Hexavalent (IC)
Lab Sample ID: MB 410-13747911-A
Matrix: Solid
Analysis Batch: 137983
MB MB
Analyte Result Qualifier
Chromium, hexavalent 0.14 U
Lab Sample ID: MB 410-137479/1-A
Matrix: Solid
Analysis Batch: 137983
RL MDL Unit
0.40 0.14 mg/Kg
Client Sample ID: Method Blank
Prep Type: Total/NA E:
Prep Batch: 137479 F
D Prepared Analyzed Dil Fac
06/14/2111:22 06/14/2117:30 1
Client Sample ID: Method Blank
Prep Type: Total/NA
Prep Batch: 137479
MB
MB
Analyte Result
Qualifier
RL
MDL Unit
D Prepared Analyzed Dil Fac
Chromium, hexavalent 0.14
U
0.40
0.14 mg/Kg
06/14/21 11:22 06/14/21 17:35 1
Lab Sample ID: LCS 410-137479/2-A
Client Sample ID: Lab Control Sample
Matrix: Solid
Prep Type: Total/NA
Analysis Batch: 137983
Prep Batch: 137479
Spike
LCS
LCS
%Rec.
Analyte
Added
Result
Qualifier
Unit D %Rec Limits
Chromium, hexavalent
5.00
4.00
mg/Kg 80 80-120
Lab Sample ID: LCS 410-137479/2-A
Client Sample ID: Lab Control Sample
Matrix: Solid
Prep Type: Total/NA
Analysis Batch: 137983
Prep Batch: 137479
Spike
LCS
LCS
%Rec.
Analyte
Added
Result
Qualifier
Unit D %Rec Limits
Chromium, hexavalent
5.00
4.07
mg/Kg 81 80-120
Lab Sample ID: LCSI 410-137479/3-A
Client Sample ID: Lab Control Sample
Matrix: Solid
Prep Type: Total/NA
Analysis Batch: 137983
Prep Batch: 137479
Spike
LCSI
LCSI
%Rec.
Analyte
Added
Result
Qualifier
Unit D %Rec Limits
Chromium, hexavalent
759
696
mg/Kg 92 80 -120
Lab Sample ID: LCSI 410-137479/3-A
Client Sample ID: Lab Control Sample
Matrix: Solid
Prep Type: Total/NA
Analysis Batch: 137983
Prep Batch: 137479
Spike
LCSI
LCSI
%Rec.
Analyte
Added
Result
Qualifier
Unit D %Rec Limits
Chromium, hexavalent
759
691
mg/Kg 91 80-120
Page 30 of 45
Eurofins TestAmerica, Savannah
6/16/2021

QC Sample Results
Client: Geosyntec Consultants, Inc.
Project/Site: Kettler - Wilmington, NC
Method: 7199 - Chromium, Hexavalent (IC) (Continued)
Lab Sample ID: MB 410-137480/1-A
Matrix: Solid
Analysis Batch: 137983
MB MB
Analyte Result Qualifier
Chromium, hexavalent 0.14 U
Lab Sample ID: MB 410-137480/1-A
Matrix: Solid
Analysis Batch: 137983
MB MB
Analyte Result Qualifier
Chromium, hexavalent 0.14 U
Lab Sample ID: LCS 410-137480/2-A
Matrix: Solid
Analysis Batch: 137983
Analyte
LChromium, hexavalent
Lab Sample ID: LCS 410-137480/2-A
Matrix: Solid
Analysis Batch: 137983
Analyte
Chromium, hexavalent
LLab Sample ID: LCSI 410-137480/3-A
Matrix: Solid
Analysis Batch: 137983
Analyte
Chromium, hexavalent
Lab Sample ID: LCSI 410-137480/3-A
Matrix: Solid
Analysis Batch: 137983
Analyte
Chromium, hexavalent
Method: 6020B - Metals (ICP/MS)
Job ID: 680-199936-1
Client Sample ID: Method Blank
Prep Type: Total/NA
Prep Batch: 137480
RL MDL Unit D Prepared Analyzed Dil Fac
0.40 0.14 mg/Kg 06/14/2111:24 06/14/2120:14 1
Client Sample ID: Method Blank
Prep Type: Total/NA
Prep Batch: 137480
RL MDL Unit D Prepared Analyzed Dil Fac
0.40 0.14 mg/Kg 06/14/2111:24 06/14/2120:19 1
Client Sample ID: Lab Control Sample
Prep Type: Total/NA
Prep Batch: 137480
Spike LCS LCS %Rec.
Added Result Qualifier Unit D %Rec Limits
5.00 4.16 mg/Kg 83 80 -120
Client Sample ID: Lab Control Sample
Prep Type: Total/NA
Prep Batch: 137480
Spike LCS LCS %Rec.
Added Result Qualifier Unit D %Rec Limits
5.00 4.14 mg/Kg 83 80 -120
Client Sample ID: Lab Control Sample
Prep Type: Total/NA
Prep Batch: 137480
Spike LCSI LCSI %Rec.
Added Result Qualifier Unit D %Rec Limits
759 666 mg/Kg 88 80 -120
Client Sample ID: Lab Control Sample
Prep Type: Total/NA
Prep Batch: 137480
Spike LCSI LCSI %Rec.
Added Result Qualifier Unit D %Rec Limits
759 693 mg/Kg 91 80 -120
Lab Sample ID: MB 680-672342/1-A
Client Sample ID: Method Blank
Matrix: Solid
Prep Type: Total/NA
Analysis Batch: 672612
Prep Batch: 672342
MB
MB
Analyte
Result
Qualifier
RL
MDL
Unit
D Prepared
Analyzed Dil Fac
Arsenic
0.099
U
0.30
0.099
mg/Kg
06/11/2109:51
06/1112115:17 1
Barium
0.059
U
0.50
0.059
mg/Kg
06/11/2109:51
06/11/2115:17 1
Cadmium
0.015
U
0.050
0.015
mg/Kg
06/11/2109:51
06/11/2115:17 1
Chromium
0.11
U
0.99
0.11
mg/Kg
06/11/2109:51
06/11/2115:17 1
Lead
0.050
U
0.20
0.050
mg/Kg
06/11/2109:51
06/11/2115:17 1
Selenium
0.099
U
0.50
0.099
mg/Kg
06/11/2109:51
06/11/2115:17 1
Page 31 of 45
Eurofins TestAmerica, Savannah
6/16/2021

QC Sample Results
Client: Geosyntec Consultants, Inc.
Project/Site: Kettler - Wilmington, NC
Method: 6020B - Metals (ICP/MS) (Continued)
Lab Sample ID: MB 680-672342/1-A
Matrix: Solid
Analysis Batch: 672612
MB MB
Analyte Result Qualifier
Silver 0.0099 U
Lab Sample ID: LCS 680-672342/2-A
Matrix: Solid
Analysis Batch: 672612
Spike
Analyte
Added
Arsenic
9.62
Barium
9.62
Cadmium
4.81
Chromium
9.62
Lead
48.5
Selenium
9.63
Silver
4.81
Lab Sample ID: 680-199936-1 MS
Matrix: Soil
Analysis Batch: 672612
Job ID: 680-199936-1
Client Sample ID: Method Blank
Prep Type: Total/NA
Prep Batch: 672342
RL MDL Unit D Prepared Analyzed Dil Fac
0. 999 0.0099 mg/Kg 06/11/2109:51 06/11/2115:17 1
Client Sample ID: Lab Control Sample
Prep Type: Total/NA
Prep Batch: 672342
LCS LCS
%Rec.
Result Qualifier
Unit
D %Rec
Limits
9.64
mg/Kg
100
80 -120
9.79
mg/Kg
102
80 -120
4.66
mg/Kg
97
80 -120
10.1
mg/Kg
105
80 -120
49.6
mg/Kg
102
80 -120
9.44
mg/Kg
98
80 -120
5.10
mg/Kg
106
80 -120
Analyte
Sample
Result
Sample
Qualifier
Spike
Added
MS
Result
MS
Qualifier
Unit
Arsenic
9.0
10.9
19.3
mg/Kg
Barium
58
10.9
62.4
4
mg/Kg
Cadmium
0.23
5.43
5.29
mg/Kg
Chromium
34
F1
10.9
34.9
F1
mg/Kg
Lead
70
54.8
123
mg/Kg
Selenium
0.77
10.9
11.2
mg/Kg
Silver
0.16
5.43
5.73
mg/Kg
Lab Sample ID: 680-199936-1 MSD
Matrix: Soil
Analysis Batch: 672612
Sample
Sample
Spike
MSD
MSD
Analyte
Result
Qualifier
Added
Result
Qualifier
Unit
Arsenic
9.0
10.7
21.1
mg/Kg
Barium
58
10.7
69.9
4
mg/Kg
Cadmium
0.23
5.33
5.63
mg/Kg
Chromium
34
F1
10.7
38.0
F1
mg/Kg
Lead
70
53.8
132
mg/Kg
Selenium
0.77
10.7
11.9
mg/Kg
Silver
0.16
5.33
6.04
mg/Kg
Client Sample ID: Test Pit - 3
Prep Type: Total/NA
Prep Batch: 672342
%Rec.
D %Rec Limits
95
75-125
42
75-125
93
75-125
9
75-125
96
75-125
96
75-125
103
75-125
Client Sample ID: Test Pit - 3
Prep Type: Total/NA
Prep Batch: 672342
%Rec.
RPD
D %Rec
Limits
RPD
Limit
113
75-125
9
20
3:� 112
75-125
11
20
3:� 101
75-125
6
20
39
75-125
9
20
115
75-125
7
20
104
75-125
6
20
110
75-125
5
20
Method: 7471 B - Mercury (CVAA)
Lab Sample ID: MB 680-672266/12-A Client Sample ID: Method Blank
Matrix: Solid Prep Type: Total/NA
Analysis Batch: 672350 Prep Batch: 672266
MB MB
Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac
Mercury 0.0067 U 0.017 0.0067 mg/Kg 06/10/2114:40 06/10/2119:12 1
Eurofins TestAmerica, Savannah
Page 32 of 45 6/16/2021

QC Sample Results
Client: Geosyntec Consultants, Inc.
Project/Site: Kettler - Wilmington, NC
Method: 7471 B - Mercury (CVAA) (Continued)
Lab Sample ID: LCS 680-672266/13-A
Matrix: Solid
Analysis Batch: 672350
Spike
Analyte
Added
Mercury
0.250
Lab Sample ID: 680-199936-1 MS
Matrix: Soil
Analysis Batch: 672350
Sample
Sample
Spike
Analyte Result
Qualifier
Added
Mercury 0.21
F1
0.105
Lab Sample ID: 680-199936-1 MSD
Matrix: Soil
Analysis Batch: 672350
Sample
Sample
Spike
Analyte Result
Qualifier
Added
Mercury 0.21
F1
0.117
F
Job ID: 680-199936-1
Client Sample ID: Lab Control Sample
Prep Type: Total/NA
Prep Batch: 672266
LCS LCS %Rec.
Result Qualifier Unit D %Rec Limits
0.254 mg/Kg 102 80 -120
Client Sample ID: Test Pit - 3
Prep Type: Total/NA
Prep Batch: 672266
MS MS %Rec.
Result Qualifier Unit D %Rec Limits
0.283 F1 mg/Kg 1� 68 80 -120
Client Sample ID: Test Pit - 3
Prep Type: Total/NA
Prep Batch: 672266
MSD MSD %Rec. RPD
Result Qualifier Unit D %Rec Limits RPD Limit
0.347 mg/Kg 3:� 115 80 -120 20 20
Eurofins TestAmerica, Savannah
Page 33 of 45 6/16/2021

QC Association Summary
Client: Geosyntec Consultants, Inc.
Project/Site: Kettler - Wilmington, NC
GC/MS VOA
Prep Batch: 672202
Lab Sample ID
Client Sample ID
680-199936-1
Test Pit - 3
680-199936-2
Test Pit - 4
Analysis Batch: 672515
Lab Sample ID
Client Sample ID
680-199936-1
Test Pit - 3
MB 680-672515/7
Method Blank
LCS 680-672515/3
Lab Control Sample
LCSD 680-672515/4
Lab Control Sample Dup
Analysis Batch: 672839
Lab Sample ID
Client Sample ID
680-199936-2
Test Pit - 4
MB 680-672839/7
Method Blank
LCS 680-672839/3
Lab Control Sample
LCSD 680-672839/4
Lab Control Sample Dup
Job ID: 680-199936-1
Prep Type
Matrix
Method
Prep Batch
Total/NA
Soil
5035A
Total/NA
Soil
5035A
Prep Type
Matrix
Method
Prep Batch
Total/NA
Soil
8260D
672202
Total/NA
Solid
8260D
Total/NA
Solid
8260D
Total/NA
Solid
8260D
Prep Type
Matrix
Method
Prep Batch
Total/NA
Soil
8260D
672202
Total/NA
Solid
8260D
Total/NA
Solid
8260D
Total/NA
Solid
8260D
GC/MS Semi VOA
Prep Batch: 672582
Lab Sample ID
Client Sample ID
Prep Type
Matrix
Method
Prep Batch
680-199936-1
Test Pit - 3
Total/NA
Soil
3546
680-199936-2
Test Pit - 4
Total/NA
Soil
3546
MB 680-672582/7-A
Method Blank
Total/NA
Solid
3546
LCS 680-672582/8-A
Lab Control Sample
Total/NA
Solid
3546
680-199936-1 MS
Test Pit - 3
Total/NA
Soil
3546
680-199936-1 MSD
Test Pit - 3
Total/NA
Soil
3546
Analysis Batch: 672617
Lab Sample ID
Client Sample ID
Prep Type
Matrix
Method
Prep Batch
680-199936-1
Test Pit - 3
Total/NA
Soil
8270E LL
672582
680-199936-2
Test Pit - 4
Total/NA
Soil
8270E LL
672582
MB 680-672582/7-A
Method Blank
Total/NA
Solid
8270E LL
672582
LCS 680-672582/8-A
Lab Control Sample
Total/NA
Solid
8270E LL
672582
680-199936-1 MS
Test Pit - 3
Total/NA
Soil
8270E LL
672582
680-199936-1 MSD
Test Pit - 3
Total/NA
Soil
8270E LL
672582
GC VOA
Prep Batch: 672202
Lab Sample ID
Client Sample ID
Prep Type
Matrix
Method
Prep Batch
680-199936-1
Test Pit - 3
Total/NA
So —1
5035A
680-199936-2
Test Pit - 4
Total/NA
Soil
5035A
Analysis Batch: 672829
Lab Sample ID
Client Sample ID
Prep Type
Matrix
Method
Prep Batch
680-199936-1
Test Pit - 3
Total/NA
Soil
8015D
672202
680-199936-2
Test Pit - 4
Total/NA
Soil
8015D
672202
MB 680-672829/6
Method Blank
Total/NA
Solid
8015D
LCS 680-672829/4
Lab Control Sample
Total/NA
Solid
8015D
LCSD 680-672829/5
Lab Control Sample Dup
Total/NA
Solid
8015D
Eurofins TestAmerica, Savannah
Page 34 of 45 6/16/2021

QC Association Summary
Client: Geosyntec Consultants, Inc.
Job ID:
680-199936-1
Project/Site: Kettler - Wilmington, NC
GC Semi VOA
Prep Batch: 672583
Lab Sample ID
Client Sample ID
Prep Type
Matrix
Method
Prep Batch
680-199936-1
Test Pit - 3
Total/NA
Soil
3546
680-199936-2
Test Pit - 4
Total/NA
Soil
3546
MB 680-672583/3-A
Method Blank
Total/NA
Solid
3546
LCS 680-672583/4-A
Lab Control Sample
Total/NA
Solid
3546
680-199936-1 MS
Test Pit - 3
Total/NA
Soil
3546
680-199936-1 MSD
Test Pit - 3
Total/NA
Soil
3546
Analysis Batch: 672713
Lab Sample ID
Client Sample ID
Prep Type
Matrix
Method
Prep Batch
680-199936-1
Test Pit - 3
Total/NA
Soil
8015D
672583
680-199936-2
Test Pit - 4
Total/NA
Soil
8015D
672583
MB 680-672583/3-A
Method Blank
Total/NA
Solid
8015D
672583
LCS 680-672583/4-A
Lab Control Sample
Total/NA
Solid
8015D
672583
680-199936-1 MS
Test Pit - 3
Total/NA
Soil
8015D
672583
680-199936-1 MSD
Test Pit - 3
Total/NA
Soil
8015D
672583
HPLCAC
Prep Batch: 137479
Lab Sample ID
Client Sample ID
Prep Type
Matrix
Method
Prep Batch
680-199936-1
Test Pit - 3
Total/NA
Soil
3060A
680-199936-2
Test Pit - 4
Total/NA
Soil
3060A
MB 410-137479/1-A
Method Blank
Total/NA
Solid
3060A
LCS 410-137479/2-A
Lab Control Sample
Total/NA
Solid
3060A
LCSI 410-137479/3-A
Lab Control Sample
Total/NA
Solid
3060A
Prep Batch: 137480
Lab Sample ID
Client Sample ID
Prep Type
Matrix
Method
Prep Batch
680-199936-1
Test Pit - 3
Total/NA
Soil
3060A
680-199936-2
Test Pit - 4
Total/NA
Soil
3060A
MB 410-137480/1-A
Method Blank
Total/NA
Solid
3060A
LCS 410-137480/2-A
Lab Control Sample
Total/NA
Solid
3060A
LCSI 410-137480/3-A
Lab Control Sample
Total/NA
Solid
3060A
Analysis Batch: 137983
Lab Sample ID
Client Sample ID
Prep Type
Matrix
Method
Prep Batch
680-199936-1
Test Pit - 3
Total/NA
Soil
7199
137479
680-199936-1
Test Pit - 3
Total/NA
Soil
7199
137479
680-199936-1
Test Pit - 3
Total/NA
Soil
7199
137480
680-199936-1
Test Pit - 3
Total/NA
Soil
7199
137480
680-199936-2
Test Pit - 4
Total/NA
Soil
7199
137479
680-199936-2
Test Pit - 4
Total/NA
Soil
7199
137479
680-199936-2
Test Pit - 4
Total/NA
Soil
7199
137480
680-199936-2
Test Pit - 4
Total/NA
Soil
7199
137480
MB 410-137479/1-A
Method Blank
Total/NA
Solid
7199
137479
MB 410-137479/1-A
Method Blank
Total/NA
Solid
7199
137479
MB 410-137480/1-A
Method Blank
Total/NA
Solid
7199
137480
MB 410-137480/1-A
Method Blank
Total/NA
Solid
7199
137480
LCS 410-137479/2-A
Lab Control Sample
Total/NA
Solid
7199
137479
LCS 410-137479/2-A
Lab Control Sample
Total/NA
Solid
7199
137479
LCS 410-137480/2-A
Lab Control Sample
Total/NA
Solid
7199
137480
Eurofins TestAmerica, Savannah
Page 35 of 45 6/16/2021

QC Association Summary
Client: Geosyntec Consultants, Inc.
Job ID:
680-199936-1
Project/Site: Kettler - Wilmington, NC
HPLC/IC (Continued)
Analysis Batch: 137983
(Continued)
Lab Sample ID
Client Sample ID
Prep Type
Matrix
Method
Prep Batch
LCS 410-137480/2-A
Lab Control Sample
Total/NA
Solid
7199
137480
LCSI 410-137479/3-A
Lab Control Sample
Total/NA
Solid
7199
137479
LCSI 410-137479/3-A
Lab Control Sample
Total/NA
Solid
7199
137479
LCSI 410-137480/3-A
Lab Control Sample
Total/NA
Solid
7199
137480
LCSI 410-137480/3-A
Lab Control Sample
Total/NA
Solid
7199
137480
Metals
Prep Batch: 672266
Lab Sample ID
Client Sample ID
Prep Type
Matrix
Method
Prep Batch
680-199936-1
Test Pit - 3
Total/NA
Soil
7471B
680-199936-2
Test Pit - 4
Total/NA
Soil
7471B
MB 680-672266/12-A
Method Blank
Total/NA
Solid
7471B
LCS 680-672266/13-A
Lab Control Sample
Total/NA
Solid
7471B
680-199936-1 MS
Test Pit - 3
Total/NA
Soil
7471B
680-199936-1 MSD
Test Pit - 3
Total/NA
Soil
7471B
Prep Batch: 672342
Lab Sample ID
Client Sample ID
Prep Type
Matrix
Method
Prep Batch
680-199936-1
Test Pit - 3
Total/NA
Soil
3050B
680-199936-2
Test Pit - 4
Total/NA
Soil
3050B
MB 680-672342/1-A
Method Blank
Total/NA
Solid
3050B
LCS 680-672342/2-A
Lab Control Sample
Total/NA
Solid
3050B
680-199936-1 MS
Test Pit - 3
Total/NA
Soil
3050B
680-199936-1 MSD
Test Pit - 3
Total/NA
Soil
3050B
Analysis Batch: 672350
Lab Sample ID
Client Sample ID
Prep Type
Matrix
Method
Prep Batch
680-199936-1
Test Pit - 3
Total/NA
Soil
7471B
672266
680-199936-2
Test Pit - 4
Total/NA
Soil
7471B
672266
MB 680-672266/12-A
Method Blank
Total/NA
Solid
7471B
672266
LCS 680-672266/13-A
Lab Control Sample
Total/NA
Solid
7471B
672266
680-199936-1 MS
Test Pit - 3
Total/NA
Soil
7471B
672266
680-199936-1 MSD
Test Pit - 3
Total/NA
Soil
7471B
672266
Analysis Batch: 672612
Lab Sample ID
Client Sample ID
Prep Type
Matrix
Method
Prep Batch
680-199936-1
Test Pit - 3
Total/NA
Soil
6020B
672342
680-199936-2
Test Pit - 4
Total/NA
Soil
6020B
672342
MB 680-672342/1-A
Method Blank
Total/NA
Solid
6020B
672342
LCS 680-672342/2-A
Lab Control Sample
Total/NA
Solid
6020B
672342
680-199936-1 MS
Test Pit - 3
Total/NA
Soil
6020B
672342
680-199936-1 MSD
Test Pit - 3
Total/NA
Soil
6020B
672342
General Chemistry
Analysis Batch: 672319
Lab Sample ID
Client Sample ID
Prep Type
Matrix
Method
Prep Batch
680-199936-1
Test Pit - 3
Total/NA
Soil
Moisture
680-199936-2
Test Pit - 4
Total/NA
Soil
Moisture
Eurofins TestAmerica, Savannah
Page 36 of 45 6/16/2021

Lab Chronicle
Client: Geosyntec Consultants, Inc.
Project/Site: Kettler - Wilmington, NC
Job ID: 680-199936-1
Client Sample ID: Test Pit - 3 Lab Sample ID: 680-199936-1
Date Collected: 06/08/21 11:40 Matrix: Soil
Date Received: 06/10/21 09:45
Batch Batch
Prep Type Type Method
Total/NA Analysis Moisture
Instrument ID: NOEQUIP
Client Sample ID: Test Pit - 3
Date Collected: 06/08/21 11:40
Date Received: 06/10/21 09:45
Dil Initial Final Batch Prepared
Run Factor Amount Amount Number or Analyzed Analyst Lab
1 672319 06/11/21 08:20 JB TAL SAV
Lab Sample ID: 680-199936-1
Matrix: Soil
Percent Solids: 82.2 A
-
V
Batch Batch
Dil
Initial
Final
Batch
Prepared
Prep Type
Type Method
Run Factor
Amount
Amount
Number
or Analyzed
Analyst
Lab
Total/NA
Prep 5035A
6.141 g
5 mL
672202
06/10/21 11:43
FES
TAL SAV
Total/NA
Analysis 8260D
1
5 g
5 g
672515
06/12/21 15:13
UI
TAL SAV
Instrument ID: CMSP2
Total/NA
Prep 3546
15.11 g
1 mL
672582
06/13/21 14:10
MEW
TAL SAV
Total/NA
Analysis 8270E LL
5
672617
06/14/21 21:53
NED
TAL SAV
Instrument ID: CMSAE
Total/NA
Prep 5035A
5.344 g
5 mL
672202
06/10/21 11:43
FES
TAL SAV
Total/NA
Analysis 8015D
100
5 mL
5 mL
672829
06/15/21 14:08
DBM
TAL SAV
Instrument ID: CVGWFID1
Total/NA
Prep 3546
5.50 g
1 mL
672583
06/13/21 14:10
MEW
TAL SAV
Total/NA
Analysis 8015D
1
672713
06/14/21 18:30
DBM
TAL SAV
Instrument ID: CSGAB1
Total/NA
Prep 3060A
2.5 g
100 mL
137479
06/14/21 11:22
Z7CH
ELLE
Total/NA
Analysis 7199
1
137983
06/14/2119:30
Z7CH
ELLE
Instrument ID: 26790
Total/NA
Prep 3060A
2.5 g
100 mL
137479
06/14/21 11:22
Z7CH
ELLE
Total/NA
Analysis 7199
1
137983
06/14/2119:36
Z7CH
ELLE
Instrument ID: 26790
Total/NA
Prep 3060A
2.43 g
100 mL
137480
06/14/21 11:24
Z7CH
ELLE
Total/NA
Analysis 7199
1
137983
06/14/2122:14
Z7CH
ELLE
Instrument ID: 26790
Total/NA
Prep 3060A
2.43 g
100 mL
137480
06/14/21 11:24
Z7CH
ELLE
Total/NA
Analysis 7199
1
137983
06/14/2122:20
Z7CH
ELLE
Instrument ID: 26790
Total/NA
Prep 3050B
1.17 g
500 mL
672342
06/11/21 09:51
BCB
TAL SAV
Total/NA
Analysis 6020B
1
672612
06/11/21 15:32
BWR
TAL SAV
Instrument ID: ICPMSD
Total/NA
Prep 7471 B
0.55 g
50 mL
672266
06/10/21 14:40
JKL
TAL SAV
Total/NA
Analysis 7471 B
1
672350
06/10/21 19:21
JKL
TAL SAV
Instrument ID: LEEMAN2
Client Sample ID: Test Pit - 4
Lab
Sample ID: 680-199936-2
Date Collected:
06/08/21 12:00
Matrix: Soil
Date Received: 06/10/21 09:45
Batch Batch
Dil
Initial
Final
Batch
Prepared
Prep Type
Type Method
Run Factor
Amount
Amount
Number
or Analyzed
Analyst
Lab
Total/NA
Analysis Moisture
1
672319
06/11/21 08:20
JB
TAL SAV
Instrument ID: NOEQUIP
Eurofins TestAmerica, Savannah
Page 37 of 45
6/16/2021

Lab Chronicle
Client: Geosyntec Consultants, Inc.
Job ID: 680-199936-1
Project/Site: Kettler - Wilmington, NC
Client Sample ID: Test Pit - 4
Lab
Sample ID: 680-199936-2
Date Collected: 06/08/21 12:00
Matrix: Soil
Date Received: 06/10/21 09:45
Percent
Solids: 70.4
Batch Batch
Dil
Initial
Final
Batch
Prepared
Prep Type Type Method Run
Factor
Amount
Amount
Number
or Analyzed
Analyst
Lab
Total/NA Prep 5035A
3.038 g
5 mL
672202
06/10/21 11:43
FES
TAL SAV
Total/NA Analysis 8260D
1
125 uL
5 mL
672839
06/15/21 18:34
UI
TAL SAV
Instrument ID: CMSP2
Total/NA Prep 3546
15.26 g
1 mL
672582
06/13/21 14:10
MEW
TAL SAV
Total/NA Analysis 8270E LL
5
672617
06/14/21 22:17
NED
TAL SAV
Instrument ID: CMSAE
©.
Total/NA Prep 5035A
3.038 g
5 mL
672202
06/10/21 11:43
FES
TAL SAV
Total/NA Analysis 8015D
200
5 mL
5 mL
672829
06/15/21 15:08
DBM
TAL SAV
Instrument ID: CVGWFID1
Total/NA Prep 3546
15.12 g
1 mL
672583
06/13/21 14:10
MEW
TAL SAV
Total/NA Analysis 8015D
1
672713
06/14/21 18:46
DBM
TAL SAV
Instrument ID: CSGAB1
Total/NA Prep 3060A
2.54 g
100 mL
137479
06/14/21 11:22
Z7CH
ELLE
Total/NA Analysis 7199
1
137983
06/14/2119:41
Z7CH
ELLE
Instrument ID: 26790
Total/NA Prep 3060A
2.54 g
100 mL
137479
06/14/21 11:22
Z7CH
ELLE
Total/NA Analysis 7199
1
137983
06/14/2119:47
Z7CH
ELLE
Instrument ID: 26790
Total/NA Prep 3060A
2.55 g
100 mL
137480
06/14/21 11:24
Z7CH
ELLE
Total/NA Analysis 7199
1
137983
06/14/2122:25
Z7CH
ELLE
Instrument ID: 26790
Total/NA Prep 3060A
2.55 g
100 mL
137480
06/14/21 11:24
Z7CH
ELLE
Total/NA Analysis 7199
1
137983
06/14/2122:31
Z7CH
ELLE
Instrument ID: 26790
Total/NA Prep 3050B
1.02 g
500 mL
672342
06/11/21 09:51
BCB
TAL SAV
Total/NA Analysis 6020B
1
672612
06/11/21 15:50
BWR
TAL SAV
Instrument ID: ICPMSD
Total/NA Prep 7471 B
0.59 g
50 mL
672266
06/10/21 14:40
JKL
TAL SAV
Total/NA Analysis 7471 B
1
672350
06/10/21 19:35
JKL
TAL SAV
Instrument ID: LEEMAN2
Laboratory References:
ELLE = Eurofins Lancaster Laboratories Env, LLC, 2425 New Holland Pike,
Lancaster, PA 17601, TEL
[phone]
TAL SAV = Eurofins TestAmerica, Savannah, 5102 LaRoche Avenue, Savannah,
GA 31404, TEL [phone]
Page 38 of 45
Eurofins TestAmerica, Savannah
6/16/2021

Accreditation/Certification Summary C
Client: Geosyntec Consultants, Inc. Job ID: 680-199936-1
Project/Site: Kettler - Wilmington, NC
Laboratory: Eurofins TestAmerica, Savannah
The accreditations/certifications listed below are applicable to this report.
Authority Program Identification Number Expiration Date
North Carolina (WW/SW) State 269 12-31-21
Laboratory: Eurofins Lancaster Laboratories Env, LLC
The accreditations/certifications listed below are applicable to this report.
Authority Program Identification Number Expiration Date
North Carolina (WW/SW) State 521 12-31-21
0
Eurofins TestAmerica, Savannah
Page 39 of 45 6/16/2021

Method Summary C
Client: Geosyntec Consultants, Inc. Job ID: 680-199936-1
Project/Site: Kettler - Wilmington, NC
Method Method Description
Protocol
Laboratory
8260D Volatile Organic Compounds by GC/MS
SW846
TAL SAV
8270E LL Semivolatile Organic Compounds by GC/MS - Low Level
SW846
TAL SAV
8015D Gasoline Range Organics (GRO) (GC)
SW846
TAL SAV
8015D Diesel Range Organics (DRO) (GC)
SW846
TAL SAV
7199 Chromium, Hexavalent (IC)
SW846
ELLE
6020B Metals (ICP/MS)
SW846
TAL SAV
7471 B Mercury (CVAA)
SW846
TAL SAV
Moisture Percent Moisture
EPA
TAL SAV
3050B Preparation, Metals
SW846
TAL SAV
3060A Alkaline Digestion (Chromium, Hexavalent)
SW846
ELLE
3546 Microwave Extraction
SW846
TAL SAV
5035A Closed System Purge & Trap
SW846
TAL SAV
5035A Closed System Purge & Trap/Field Methanol
SW846
TAL SAV
7471 B Preparation, Mercury
SW846
TAL SAV
m
Protocol References:
EPA= US Environmental Protection Agency
SW846 = "Test Methods For Evaluating Solid Waste, Physical/Chemical Methods",
Third Edition, November 1986 And Its Updates.
Laboratory References:
ELLE = Eurofins Lancaster Laboratories Env, LLC, 2425 New Holland Pike, Lancaster, PA 17601, TEL [phone]
TAL SAV = Eurofins TestAmerica, Savannah, 5102 LaRoche Avenue, Savannah, GA 31404, TEL [phone]
Eurofins TestAmerica, Savannah
Page 40 of 45 6/16/2021

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Eurofins TestArnerica, Savannah
5102 LaRoche Avenue
Savannah, GA 31404
Phone:[phone] Fax.[phone]
Chain of Custody Record IIII II I IIII III IIIIII I I III IIII II • eurofins Americatrt 7E•S.lin
Sampler
Lab PM
Carrier Tracking No(s)
CDC No
Client Information Sub Contract Lab
Andros, John
680-656745 1
Client Contact:
Phone.
E-Mail
4tate of Ongm:
Page
Shipping/Receiving
john andros@eurofinset com
North Carolina
Page 1 of 1
Company
Accreddations Required (See note)
Job N
Eurofins Lancaster Laboratories Env LLC
State - North Carolina (WW1SW)
680-199936-1
Address
Due Date Requested:
Preservation Codes:
2425 New Holland Pike,
6/14/2021
Analysis
Requested
A - NaOHHCL fit- Hexane
NaOTAT
B - N -None
City
Requested (tlays):
�
Lancaster
E
Q
C - Zn Acetate O - AsNaO2
D - NMc Acid P - Na204S
State, Zip.
PA, 17601
E-NaHSO4 0-Na2SO3
F -Mel R - Na2S203
Phone
PO N
Tel
=
G - Amchlar S - H2SO4
717-656-2300 ( )
c
Z
2
H - Ascorbic Acid T - TSP Doderahydrate
1 - Ice U - Acetone
Email
WON
o`
m
-
c
a
m
J - Cl Water V - MCAA
K- EDTA W- pH 4 5
Project Name
Project N
Kettler- Wilmington, NC
68025783
m
a
E
a
>
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Qo
0
l -EDA Z- omer(spedy)
Other:
Site
SSOWx
co
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0
Sample
Matrix
m
m
€
f
E
Type
(Wr.U..
soaa.
—
u-
C
C
cc
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Sample
(C=Comp,
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.
0
m'
9
Sample Identification - Client ID Lab ID
Sample Date
Time
G= rab)
aT-T..•.,... r
U2
a
H
Special Instructions/Note:
Preservation CDde:
Test Pit - 3 (680-199936-1)
618121
1140
Solid
X
1
Eastern
Test Pit - 4 (680-199936-2)
6/8t21
1200
Solid
X
1
Eastern
Note. Since laboratory accreditations are subject to change. Eurofins TestAmerira places the ownership of method, analyte d accreditation compliance upon out subcontract laboratones. This sample shipment is forwarded under chain -of -custody lithe laboratory does not currently
maintain accreditation in she Stale of Origin listed above for analysisltestsfmatnx being analyzed, the samples must be shipped back to the Eurofins TestAmerica laboratory or other instructions will be provided Any changes to accreditation status should be brought to Eurofins
TestAmenca attention immediately If all requested accreditation are current to date, return the signed Chain of Custody attesting to said complicance to Eurofim TestAmenca
Possible Hazard Identification
Sample Disposal ( A fee may be assessed if samples are retained longer than 1 month)
Unconfirmed
0 Return To Client = Disposal By Lab Archive For Months
Deliverable Requested I, 11 III, IV, Other (specify) Primary Deliverable Rank 2
Special Instructions/QC Requirements.
Empty Kit Relinquished by IDate Time Method of Shipment
Relinquished by
Dalerrimei��1
�--iS 3'
Company
Received by
Date/fine
Company
ReLnquished by
Daterrm"
Company
Received by
Daterrime
Company
Relinquished by
ompany
Receiv
DatelThme.
Company r
-mow
Custody Seals Intact:
Custody Seal No
cooler Temperatures) •C and Other Remarks
A Yes A No
3, 4
Ver: I 1 /01 /202(6/16/20��
Page 43 of 45

Login Sample Receipt Checklist
Client: Geosyntec Consultants, Inc.
Job Number: 680-199936-1
Login Number: 199936
List Number: 1
Creator: Sims, Robert D
Question
List Source: Eurofins TestAmerica, Savannah
Answer Comment
Radioactivity wasn't checked or is </= background as measured by a survey
N/A
meter.
The cooler's custody seal, if present, is intact.
True
Sample custody seals, if present, are intact.
True
The cooler or samples do not appear to have been compromised or
True
tampered with.
Samples were received on ice.
True
Cooler Temperature is acceptable.
True
Cooler Temperature is recorded.
True
COC is present.
True
COC is filled out in ink and legible.
True
COC is filled out with all pertinent information.
True
Is the Field Sampler's name present on COC?
True
There are no discrepancies between the containers received and the COC.
True
Samples are received within Holding Time (excluding tests with immediate
True
HTs)
Sample containers have legible labels.
True
Containers are not broken or leaking.
True
Sample collection date/times are provided.
True
Appropriate sample containers are used.
True
Sample bottles are completely filled.
True
Sample Preservation Verified.
N/A
There is sufficient vol. for all requested analyses, incl. any requested
True
MS/MSDs
Containers requiring zero headspace have no headspace or bubble is
True
<6mm (1/4").
Multiphasic samples are not present.
True
Samples do not require splitting or compositing.
True
Residual Chlorine Checked.
N/A
Eurofins TestAmerica, Savannah
Page 44 of 45 6/16/2021

Client: Geosyntec Consultants, Inc.
Login Number: 199936
List Number: 2
Creator: Bryan, Debra A
Question
Login Sample Receipt Checklist
Job Number: 680-199936-1
List Source: Eurofins Lancaster Laboratories Env, LLC
List Creation: 06/11/21 11:30 AM
Answer Comment
Radioactivity wasn't checked or is </= background as measured by a survey
N/A
meter.
The cooler's custody seal is intact.
True
The cooler or samples do not appear to have been compromised or
True
tampered with.
Samples were received on ice.
True
Cooler Temperature is acceptable (</=6C, not frozen).
True
Cooler Temperature is recorded.
True
WV: Container Temperature is acceptable (</=6C, not frozen).
N/A
WV: Container Temperature is recorded.
N/A
COC is present.
True
COC is filled out in ink and legible.
True
COC is filled out with all pertinent information.
True
There are no discrepancies between the containers received and the COC.
True
Samples are received within Holding Time (excluding tests with immediate
True
HTs)
Sample containers have legible labels.
True
Containers are not broken or leaking.
True
Sample collection date/times are provided.
True
Appropriate sample containers are used.
True
Sample bottles are completely filled.
True
There is sufficient vol. for all requested analyses.
True
Multiphasic samples are not present.
True
Samples do not require splitting or compositing.
N/A
Is the Field Sampler's name present on COC?
False
Sample Preservation Verified.
N/A
Residual Chlorine Checked.
N/A
Sample custody seals are intact.
N/A
Received project as a subcontract.
Eurofins TestAmerica, Savannah
Page 45 of 45 6/16/2021

ATTACHMENT D
Risk Calculator for Soil Gas

Risk for Individual Pathways
Tier 1 Soil Gas Screening
-?Irma
m.rviri
Version Date: June 2021
Basis: May 2021 EPA RSL Table
Site ID:
Exposure Unit ID:
DIRECT CONTACT SOIL AND WATER CALCULATORS
Receptor
Pathway
CarcinogenicRisk
Hazard Index
Risk exceeded?
Resident
Soil
NC
NC
NC
Groundwater Use*
NC
NC
NC
Non -Residential Worker
Soil
NC
NC
NC
Groundwater Use*
NC
NC
NC
Construction Worker
Soil
NC
NC
NC
Recreator/Trespasser
Soil
NC
NC
NC
Surface Water*
NC
NC
NC
JL
VAPOR INTRUSION CALCULATORS
Receptor
Pathway
CarcinogenicRisk
Hazard Index
Risk exceeded?
Resident
Groundwater to Indoor Air
NC
NC
NC
Soil Gas to Indoor Air
9.5E-04
2.5E+01
YES
Indoor Air
NC
NC
NC
Non -Residential Worker
Groundwater to Indoor Air
NC
NC
NC
Soil Gas to Indoor Air
7.2E-05
2.0E+00
YES
Indoor Air
NC
NC
NC
CONTAMINANT MIGRATION CALCULATORS
Pathway
Source
Target Receptor Concentrations Exceeded?
Groundwater
Source Soil
Exceedence of 2L at Receptor?
NC
Source Groundwater
Exceedence of 21, at Receptor?
NC
Surface Water
Source Soil
Exceedence of 2B at Receptor?
NC
Source Groundwater
Exceedence of 2B at Receptor?
NC
Notes:
1. If lead concentrations were entered in the exposure point concentration tables, see the individual calculator sheets for lead
concentrations in comparison to screening levels. Note that lead is not included in cumulative risk calculations.
2. * = If concentrations in groundwater exceed the NC 2L Standards or IMAC, or concentrations in surface water exceed the
NC 2B Standards, appropriate remediation and/or institutional control measures will be necessary to be eligible for a risk -based
closure.
3. NM = Not Modeled
4. NC = Pathway not calculated
North Carolina DEQ Risk Calculator

Version Date: June 2021
Basis: May 2021 EPA RSL Table
Site ID:
Exposure Unit ID: M
Carcinogenic risk and hazard quotient cells highlighted in orange are associated with non-volatile chemicals. Since these chemicals do not pose a vapor intrusion
risk, no risk values are calculated for these chemicals.
All concentrations are in ue/m3
CAS #
Chemical Name:
Soil Gas
Concentration
s
(ug/m)
Calculated
Indoor Air
Concentration
(ug/ms)
Target Indoor
Air Conc. for
Carcinogens @
TCR = 1 E-06
Target Indoor Air
Conc. for Non -
Carcinogens @
THQ = 0.2
Calculated
Carcinogenic
Risk
Calculated
Non -
Carcinogenic
Hazard
Quotient
67-64-1
Acetone
280
8.4
6.5E+03
2.6E-04
107-05-1
All 1 Chloride
160
1 4.8
4.7E-01
2.1E-01
1.0E-05
4.6E+00
71-43-2
Benzene
120
3.6
3.6E-01
6.3E+00
1.0E-05
1.2E-01
100-44-7
Benzyl Chloride
64
1.92
5.7E-02
2.1E-01
3.4E-05
1.8E+00
75-27-4
Bromodichloromethane
83
2.49
7.6E-02
3.3E-05
75-25-2
Bromoform
130
3.9
2.6E+00
1.5E-06
74-83-9
Bromomethane
190
5.7
1.0E+00
l.1E+00
106-99-0
Butadiene, 1,3-
28
0.84
9.4E-02
4.2E-01
9.0E-06
4.0E-01
75-15-0
Carbon Disulfide
46
1.38
1.5E+02
1.9E-03
56-23-5
Carbon Tetrachloride
78
2.34
4.7E-01
2.1E+01
5.0E-06
2.2E-02
108-90-7
Chlorobenzene
220
6.6
1.0E+01
1.3E-01
67-66-3
Chloroform
61
1.83
1.2E-01
2.0E+01
1.5E-05
1.8E-02
98-82-8
Cumene
300
9
8.3E+01
2.2E-02
110-82-7
C clohexane
370
11.1
1
1.3E+03
1.8E-03
106-93-4
Dibromoethane, 1,2-
96
2.88
4.7E-03
1.9E+00
6.2E-04
3.1E-01
95-50-1
Dichlorobenzene,l,2-
17
0.51
4.2E+01
2.4E-03
106-46-7
Dichlorobenzene, 1,4-
9.6
0.288
2.6E-01
1.7E+02
1.1E-06
3.5E-04
75-71-8
Dichlorodifluoromethane
6.8
0.204
2.1E+01
2.0E-03
107-06-2
Dichloroethane, 1,2-
50
1.5
1.1E-01
1.5E+00
1.4E-05
2.1E-01
156-59-2
Dichloroeth lene, cis-1,2-
230
6.9
78-87-5
Dichloro ro ane, 1,2-
58
1.74
7.6E-01
8.3E-01
2.3E-06
4.2E-01
123-91-1
Dioxane, 1,4-
4.6
0.138
5.6E-01
6.3E+00
2.5E-07
4.4E-03
100-414
Eth lbenzene
300
9
1.1E+00
2.1E+02
8.0E-06
8.6E-03
142-82-5
He tane, N-
960
28.8
-
8.3E+01
6.9E-02
87-68-3
Hexachlorobutadiene
530
15.9
1.3E-01
1.2E-04
110-54-3
Hexane, N-
2500
75
1.5E+02
1.0E-01
67-63-0
Iso ro anol
34
1.02
4.2E+01
4.9E-03
78-93-3
Methyl Ethyl Ketone (2-Butanone)
58
1.74
1.0E+03
3.3E-04
108-10-1
Methyl Isobutyl Ketone (4-methyl-2- entanone)
2.6
0.078
6.3E+02
2.5E-05
1634-04-4
Methyl ter[ -Butyl Ether (MTBE)
2.9
0.087
1.1E+01
6.3E+02
8.1E-09
2.8E-05
75-09-2
Methylene Chloride
2
0.06
1.0E+02
1.3E+02
5.9E-10
9.6E-05
103-65-1
Pro ylbenzene
47
1.41
2.1E+02
1.4E-03
100-42-5
Styrene
2
0.06
2.1E+02
5.8E-05
79-34-5
Tetrachloroethane, 1,1,2,2-
85
2.55
4.8E-02
5.3E-05
127-18-4
Tetrachloroeth lene
67
2.01
1.1E+01
8.3E+00
1.9E-07
4.8E-02
108-88-3
Toluene
82
2.46
1.0E+03
4.7E-04
120-82-1
Trichlorobenzene, 1,2,4-
370
11.1
4.2E-01
5.3E+00
79-00-5
Trichloroethane, 1,1,2-
68
2.04
1.8E-01
4.2E-02
1.2E-05
9.8E+00
79-01-6
Trichloroeth lene
16
0.48
4.8E-01
4.2E-01
1.0E-06
2.3E-01
95-63-6
Trimethylbenzene, 1,2,4-
440
13.2
1.3E+01
2.1E-01
108-67-8
Trimethylbenzene, 1,3,5-
420
12.6
1.3E+01
2.0E-01
75-014
Vinyl Chloride
10
1 0.3
1.7E-01
2.1E+01
1.8E-06
2.9E-03
108-38-3
Xylene, m-
240
7.2
2.1E+01
6.9E-02
95-47-6
X lene, o-
140
4.2
2.1E+O1
4.0E-02
Cumulative: I 9.5E-04 2.5E+O1
North Carolina DEC Risk Calculator

DEQ Risk Calculator - Vapor Intrusion - Non -Residential Worker Soil Gas to Indoor Air Tier 1 Soil Gas Screening
Version Date: June 2021
Basis: May 2021 EPA RSL Table
Site ID:
Exposure Unit ID:
Carcinogenic risk and hazard quotient cells highlighted in orange are associated with non-volatile chemicals. Since these chemicals do not pose a vapor intrusion risk, no
risk values are calculated for these chemicals.
All concentrations are in u /m'
CAS #
Chemical Name:
Soil Gas
Concentration
Calculated
Indoor Air
Concentration
Target Indoor
Air Conc. for
Carcinogens @
Target Indoor Air
Conc. for Non -
Carcinogens @
Calculated
Carcinogenic
Risk
Calculated
Non -
Carcinogenic
North Carolina DEQ Risk Calculator

Risk for Individual Pathways
Tier 2 Soil Gas Screening
Version Date: June 2021
Basis: May 2021 EPA RSL Table
Site ID:
Exposure Unit ID:
DIRECT CONTACT SOIL AND WATER CALCULATORS
Receptor
Pathway
CarcinogenicRisk
Hazard Index
Risk exceeded?
Resident
Soil
NC
NC
NC
Groundwater Use*
NC
NC
NC
Non -Residential Worker
Soil
NC
NC
NC
Groundwater Use*
NC
NC
NC
Construction Worker
Soil
NC
NC
NC
Recreator/Trespasser
Soil
NC
NC
NC
Surface Water*
NC
NC
NC
VAPOR INTRUSION CALCULATORS
Receptor
Pathway
CarcinogenicRisk
Hazard Index
Risk exceeded?
Resident
Groundwater to Indoor Air
NC
NC
NC
Soil Gas to Indoor Air
2.2E-05
1.3E+00
YES
Indoor Air
NC
NC
NC
Non -Residential Worker
Groundwater to Indoor Air
NC
NC
NC
Soil Gas to Indoor Air
1.6E-06
1.0E-01
NO
Indoor Air
NC
NC
NC
CONTAMINANT MIGRATION CALCULATORS
Pathway
Source
Target Receptor Concentrations Exceeded?
Groundwater
Source Soil
Exceedence of 2L at Receptor?
NC
Source Groundwater
Exceedence of 21, at Receptor?
NC
Surface Water
Source Soil
Exceedence of 2B at Receptor?
NC
Source Groundwater
Exceedence of 2B at Receptor?
NC
Notes:
1. If lead concentrations were entered in the exposure point concentration tables, see the individual calculator sheets for lead
concentrations in comparison to screening levels. Note that lead is not included in cumulative risk calculations.
2. * = If concentrations in groundwater exceed the NC 2L Standards or IMAC, or concentrations in surface water exceed the
NC 2B Standards, appropriate remediation and/or institutional control measures will be necessary to be eligible for a risk -based
closure.
3. NM = Not Modeled
4. NC = Pathway not calculated
North Carolina DEQ Risk Calculator

Version Date: June 2021
Basis: May 2021 EPA RSL Table
Site ID:
Exposure Unit ID: M
Carcinogenic risk and hazard quotient cells highlighted in orange are associated with non-volatile chemicals. Since these chemicals do not pose a vapor intrusion
risk, no risk values are calculated for these chemicals.
All concentrations are in ue/m3
CAS #
Chemical Name:
Soil Gas
Concentration
s
(ug/m)
Calculated
Indoor Air
Concentration
(ug/ms)
Target Indoor
Air Conc. for
Carcinogens @
TCR = 1 E-06
Target Indoor Air
Conc. for Non -
Carcinogens @
THQ = 0.2
Calculated
Carcinogenic
Risk
Calculated
Non -
Carcinogenic
Hazard
Quotient
67-64-1
Acetone
280
8.4
6.5E+03
2.6E-04
107-05-1
A111Chloride
0
1 0
4.7E-01
2.1E-01
0.0E+00
0.0E+00
71-43-2
Benzene
120
3.6
3.6E-01
6.3E+00
1.0E-05
1.2E-01
100-44-7
BenzylChloride
0
0
5.7E-02
2.1E-01
0.0E+00
0.0E+00
106-99-0
Butadiene, 1,3-
0
0
9.4E-02
4.2E-01
0.0E+00
0.0E+00
75-15-0
Carbon Disulfide
46
1.38
1.5E+02
1.9E-03
108-90-7
Chlorobenzene
220
6.6
1.0E+01
1.3E-01
98-82-8
Cumene
300
9
8.3E+01
2.2E-02
110-82-7
C clohexane
370
11.1
1.3E+03
1.8E-03
95-50-1
Dichlorobenzene, 1,2-
17
0.51
4.2E+01
2.4E-03
106-46-7
Dichlorobenzene, 1,4-
9.6
0.288
2.6E-01
1.7E+02
1.1E-06
3.5E-04
75-71-8
Dichlorodifluoromethane
6.8
0.204
2.1E+01
2.0E-03
156-59-2
Dichloroeth lene, cis-1,2-
230
6.9
123-91-1
Dioxane, 1,4-
4.6
0.138
5.6E-01
6.3E+00
2.5E-07
4.4E-03
100-41-4
Eth lbenzene
300
9
1.1E+00
2.1E+02
8.0E-06
8.6E-03
142-82-5
Heptane, N-
960
28.8
8.3E+01
6.9E-02
110-54-3
Hexane, N-
2500
75
1.5E+02
1.0E-01
67-63-0
Iso ro aril
34
1.02
4.2E+01
4.9E-03
78-93-3
Methyl Ethyl Ketone (2-Butanone)
58
1.74
1.0E+03
3.3E-04
108-10-1
Methyl Isobutyl Ketone (4-meth 1-2- entanone)
2.6
0.078
6.3E+02
2.5E-05
1634-04-4
Methyl tert-Butyl Ether (MTBE)
2.9
0.087
1.1E+01
6.3E+02
8.1E-09
2.8E-05
75-09-2
Methylene Chloride
2
0.06
1.0E+02
1.3E+02
5.9E-10
9.6E-05
103-65-1
Propylbenzene
47
1.41
2.1E+02
1.4E-03
100-42-5
Styrene
2.3
0.069
2.1E+02
6.6E-05
127-184
Tetrachloroeth lene
67
2.01
1.1E+01
8.3E+00
1.9E-07
4.8E-02
108-88-3
Toluene
82
2.46
1.0E+03
4.7E-04
79-01-6
Trichloroeth lene
16
0.48
4.8E-01
4.2E-01
1.0E-06
2.3E-01
95-63-6
Trimeth lbenzene, 1,2,4-
440
13.2
1.3E+01
2.1E-01
108-67-8
Trimeth lbenzene, 1,3,5-
420
12.6
1.3E+01
2.0E-01
75-01-4
Vinyl Chloride
10
0.3
1.7E-01
2.1E+01
1.8E-06
2.9E-03
108-38-3
X lene, m-
240
7.2
2.1E+01
6.9E-02
95-47-6
X lene, o-
140
4.2
2.1E+01
4.0E-02
Cumulative: I 2.2E-05 1.3E+00
North Carolina DEC Risk Calculator

DEQ Risk Calculator - Vapor Intrusion - Non -Residential Worker Soil Gas to Indoor Air Tier 2 Soil Gas Screening
Version Date: June 2021
Basis: May 2021 EPA RSL Table ML
Site ID:
Exposure Unit ID:
Carcinogenic risk and hazard quotient cells highlighted in orange are associated with non-volatile chemicals. Since these chemicals do not pose a vapor intrusion risk, no
risk values are calculated for these chemicals.
All concentrations are in u /m3
Soil Gas
Calculated
Target Indoor
Tar
l
CAS #
Chemical Name:
Concentration
Indoor Air
Concentration
Air Conc. for
Carcinogens @
get Indoor Air
Conc. for Non -
Carcinogens @
Calculated
Carcinogenic
Risk
Calculated
Non -
Carcinogenic
North Carolina DEQ Risk Calculator

ATTACHMENT E
Risk Calculator for Soil

Risk for Individual Pathways
Tier 1 Soil Screening
1
Version Date: June 2021
Basis: May 2021 EPA RSL Table
Site ID:
Exposure Unit ID:
DIRECT CONTACT SOIL AND WATER CALCULATORS
Receptor
Pathway
CarcinogenicRisk
Hazard Index
Risk exceeded?
Resident
Soil
1.6E-04
9.5E-01
YES
Groundwater Use*
NC
NC
NC
Non -Residential Worker
Soil
1.8E-05
8.5E-02
NO
Groundwater Use*
NC
NC
NC
Construction Worker
Soil
3.3E-06
8.3E-01
NO
Recreator/Trespasser
Soil
4.2E-05
4.8E-01
NO
Surface Water*
NC
NC
NC
AL
VAPOR INTRUSION CALCULATORS
Receptor
Pathway
CarcinogenicRisk
Hazard Index
Risk exceeded?
Resident
Groundwater to Indoor Air
NC
NC
NC
Soil Gas to Indoor Air
NC
NC
NC
Indoor Air
NC
NC
NC
Non -Residential Worker
Groundwater to Indoor Air
NC
NC
NC
Soil Gas to Indoor Air
NC
NC
NC
Indoor Air
NC
NC
NC
CONTAMINANT MIGRATION CALCULATORS
Pathway
Source
Target Receptor Concentrations Exceeded?
Groundwater
Source Soil
Exceedence of 2L at Receptor?
NC
Source Groundwater
Exceedence of 21, at Receptor?
NC
Surface Water
Source Soil
Exceedence of 2B at Receptor?
NC
Source Groundwater
Exceedence of 2B at Receptor?
NC
Notes:
1. If lead concentrations were entered in the exposure point concentration tables, see the individual calculator sheets for lead
concentrations in comparison to screening levels. Note that lead is not included in cumulative risk calculations.
2. * = If concentrations in groundwater exceed the NC 2L Standards or IMAC, or concentrations in surface water exceed the
NC 2B Standards, appropriate remediation and/or institutional control measures will be necessary to be eligible for a risk -based
closure.
3. NM = Not Modeled
4. NC = Pathway not calculated
North Carolina DEQ Risk Calculator

DEQ Risk Calculator - Direct Contact - Resident Soil Tier I SoilScreening
Version Date: June2021
Basis: May 2021 EPA RSL Table
Site ID:
Exposure Unit ID:
* - Note that inhalation on this calculator refers to outdoor inhalation of volatiles and particulates, not indoor inhalation associated with vapor intrusion.
' - Note that the EPA has no consensus on reference dose or cancer slope factor values far lead, therefore it is not possible to calculate cancer risk or hazard quotient. Lead concentrations are compared to the EPA screening level
of 400 mglkg for residential soil.
Cumulative: 1.6E-04 9.5E-01
CAS #
Chemical Name:
Ingestion
Concentration
(mg/kg)
Denial
Concentration
(mg/kg)
Inhalation
Concentration
(mg/kg)*
Ingestion
Carcinogenic
Risk
Dental
Carcinogenic
Risk
Inhalation
Carcinogenic
Risk*
Calculated
Carcinogenic
Risk
Ingestion
Hazard
Quotient
Dermal
Hazard
Quotient
Inhalation
Hazard
Quotient*
Calculated
Non -
Carcinogenic
Hazard
Quotient
67-64-1
Acetone
7.2
7.2
7.2
1.0E-04
1.5E-05
1.2E-04
7440-38-2
Arsenio, Ino 'c
24
24
24
3.1E-05
4.4E-06
6.2E-10
3.5E-06
6.1E-01
7.3E-02
2.6E-06
6.9E-01
7440-39-3
Barium
58
68
68
3.7E-03
1.9E-06
3.7E-03
100-52-7
BenzaIdehyde
0.092
0.092
0.092
5.3E-10
5.3E-10
1.2E-OS
1.2E-05
92-524
Bi hen 1, 1,11-
0.068
0.068
0.058
6.7E-10
6.7E-10
1.5E-06
1.1E-03
1.1E-03
744043-9
Cadmium iet
0.39
0.39
0.39
4.2E-12
4.2E-12
5.0E-03
4.7E-04
6.3E-07
5.5F-73
75-I5-0
Carbon Disulfide
0.0013
0.0013
0.0013
1.7E-07
5.7E-07
7.3E-07
16065-83-1
Chromium III ,Insoluble Salts
34
34
34
2.9E-04
2.9E-04
18540-29-9
Chromium(VI)
1
1
1
3.3E-06
1.4E-09
3.3E-06
4.3E-03
1.6E-07
4.3E-03
98-82-8
Cunene
0.56
0.56
0.56
7.2E-05
2.0E-04
2.7E-04
96-12-8
Dibromo-3-chloro r one, 1,2-
0.49
0.49
0.49
2.6E-06
8.5E-05
8.8E-05
3.1E-02
6.9E-02
1.0E-01
106-934
Dibrornoethane, 1,2-
0.17
0.17
0.17
4.9E-07
3.9E-06
4.4E-06
2.4E-04
2.0E-03
2.2E-113
132-64-9
-DibenzoCuran
0.59
0.59
0.59
7.5E-03
7.5E-03
7439-92-1
-Lead and Co ounds
120
120
120
<SL**
<SL**
<SL**
7439-97-6
-Men(elemental)
0.21
0.21
0.21
1.8E-02
1.8E-02
79-20-9
Methyl Acetate
1.8
1.8
1.8
2.3E-05
2.3E-05
78-93-3
Methyl Ethyl Ketone (2-Butanone)
0.036
0.036
0.036
7.7E-07
5.3E-07
1.3E-06
83-32-9
-Acena hthene
0.97
0.97
0.97
2.1E-04
6.4E-115
2.7F`04
120-12-7
-Anthracene
0.64
0.64
0.64
2.7E-05
8.4E-06
3.6E-05
56-55-3
-Benz a anthmcene
1.6
1.6
1.6
1.0E-06
3.5E-07
2.0E-08
1.4E-06
50-32-8
-Benzo[a] ene
1.9
1.9
1.9
1.2E-05
4.1E-06
1.9E-11
1.7E-05
8.1E-02
2.5E-02
1.5E-05
1.1E-01
205-99-2
-Benno fluormthene
2.7
2.7
2.7
1.8E-06
5.9E-07
2.7E-12
2.4E-06
207-08-9
-Benzo[k]fluoranthene
1.1
1.1
1.1
7.2E-08
2.4E-08
1.1E-13
9.6E-08
218-01-9
-C ene
1.8
1.8
1.8
1.2E-08
3.9E-09
1.8E-14
1.6E-08
53-70-3
-Dibenz[a,h]an0nacene
0.19
0.19
0.19
1.2E-06
4.1E-07
1.9E-12
1.7E-06
20644-0
-Fluoranthene
3.9
3.9
3.9
1.2E-03
3.8E-04
1.6E-03
86-73-7
-Fluorene
0.76
0.76
0.76
2.4E-04
7.5E-05
3.2EA4
193-39-5
-Indeno 1,2,3-cd e
0.4
0.4
0.4
2.6E-07
8.7E-08
4.0E-13
3.5E-07
91-57-6
-Meth na hthalene, 2-
0.55
0.55
0.55
1.8E-03
5.4E-04
2.3E-03
91-20-3
-Na hthalene
0.45
0.45
0.46
7.8E-08
2.8E-08
1.1E-07
2.2E-07
2.9E-04
8.9E-05
2.9E-03
3.3E-03
129-00-0
_ ene
2.9
2.9
2.9
1.2E-03
3.8E-04
1.6E-03
778249-2
Selenium
0.77
0.77
0.77
2.0E-03
6.2E-10
2.0E-03
7440-22-0
Silver
0.16
0.16
0.16
4.1E-04
4.1E-04
108-88-3
Toluene
0.17
0.17
0.17
2.7E-OS
7.1E-06
3.4E-05
76-014
Vin Chloride
0.17
0.17
0.17
1.8E-06
2.1E-06
7.2E-04
5.2E-04
1.2E-03
NorU Carolina DEO Rlak Calculabr

DEQ Riek Calculator-DirectContact-Non-Residential Worker Soil 1CY Ol CYCCHIHOutput Form 2C
Version Dale: June 2021
Basis: May 2021 EPA RSL Table
Site ID:
E o re Unit ID:
' - Note that inhalation on this calculator refers to outdoor inhalation of volatiles and particulates, not indoor inhalation associated with vapor intrusion.
" - Note that the EPA has no consensus on reference dose or cancer slope factor values for lead, therefore it is not possible to calculate cancer risk or hazard quotient. Lead concentrations are compared to the EPA screening level of800
mg/kg for commerciol/industria/ soil.
Cumulativc: 1.8E-05 8.5E-02
CAS #
Chemical Name:
Ingestion
Concentration
(mg/kg)
Dermal
Concentration
(mg/kg)
Inhalation
Concentration
(mg/kg)'
Ingestion
Carcinogenic
Risk
Dermal
Carcinogenic
Risk
Inhalation
Carcinogenic
Risk
Calculated
Carcinogenic
Risk
Ingestion
Hazard
Quotient
Dermal
Hazard
Quotient
Inhalation
Hazard
Quotient
Calculated
Non -
Carcinogenic
Hazard
Quotient
67-64-1
Acetone
7.2
7.2
7.2
6.8E-06
3.6E-06
1.0E-05
7440-38-2
Arsenic, Inorganic
24
24
24
6.6E-06
1.4E-06
1.4E-10
8.0E-06
4.1E-02
8.7E-03
6.2E-06
5.0E-02
7440-39-3
Barium
58
58
58
2.5E-04
4.5E-07
2.5E-04
100-52-7
Benzaldehyde
0.092
0.092
0.092
1.1E-10
1.1E-10
7.9E-07
7.9E-07
92-52-4
0.058
0.058
0.058
1.4E-10
1.4E-10
9.9E-08
2.7E-04
2.7E-04
7440-43-9
Cadmium (Diet)
0.39
0.39
0.39
9.6E-13
9.6E-13
3.3E-04
5.7E-05
1.5E-07
3.9E-04
75-15-0
Carbon Disulfide
0.0013
0.0013
0.0013
1.1E-08
1.3E-07
1.5E-07
16065-83-1
Chromium(III), Insoluble Salts
34
34
34
1.9E-05
1.9E-05
18540-29-9
Chromium(VI)
1
1
1
1.5E-07
1.2E-10
1.5E-07
2.9E-04
3.8E-08
2.9E-04
98-82-8
Cumene
0.56
0.56
0.56
4.8E-06
4.8E-05
5.3E-05
96-12-8
Dibromo-3-chloro ro ane, 1,2-
0.49
0.49
0.49
1.2E-07
7.0�06
7.2E-06
2.1E-03
1.6E-02
1.9E-02
106-93-4
Dibromoethane, 1,2-
0.17
0.17
0.17
1.0E-07
9.0E-07
1.0E-06
1.6E-05
4.7E-04
4.8E-04
132-64-9
-DibenzoCuran
0.59
0.59
0.59
5.1E-04
5.1E-04
7439-92-1
-Lead and Compounds
120
120
120
6L«•
6L«•
6L«•
7439-97-6
-Merc (elemental)
0.21
0.21
0.21
4.3E-03
4.3E-03
79-20-9
Methyl Acetate
1.8
1.8
1.8
1.5E-06
1.5E-06
78-93-3
Methyl Eth lKetone (2-Hutanone)
0.036
0.036
0.036
5.1E-08
1.3E-07
1.8E-07
83-32-9
-Acenaphthene
0.97
0.97
0.97
1.4E-05
7.6E-06
2.1E-05
120-12-7
-P.nthracene
0.64
0.64
0.64
1.8E-06
1.0E-06
2.8E-06
56-55-3
-Benz[a]anthracene
1.6
1.6
1.6
4.9&08
2.7E-08
1.7&09
7.8E-08
50-32-8
-Benzo[a] ene
1.9
1.9
1.9
5.8E-07
3.2E-07
1.6E-12
9.0E-07
5.4E-03
3.0E-03
3.7E-06
8.4E-03
205-99-2
-Benzc[b]Fluoranthene
2.7
2.7
2.7
8.3E-08
4.5E-08
2.2E-13
1.3E-07
207-08-9
-Henzo[k]Fluoranthene
1.1
1.1
1.1
3.4E-09
1.9E-09
9.1E-15
5.2E-09
218-01-9
-Chrysene
1.8
1.8
1.8
5.5E-10
3.0E-10
1.5E-15
8.5E-10
53-70-3
-Dibenz[a,h]anOvacene
0.19
0.19
0.19
5.8E-08
3.2E-08
1.6E-13
9.0E-08
206-440
-Fluoranthene
3.9
3.9
3.9
8.3E-05
4.6E-05
1.3E-04
86-73-7
-Fluorone
0.76
0.76
0.76
1.6E-05
9.O13-06
2.5E-05
193-39-5
-Indeno[1,2,3-cd]pyrene
0.4
0.4
0.4
1.2E-08
6.7E-09
3.3E-14
1.9E-08
91-57-6
-Meth Ina htlralene, 2-
0.55
0.55
0.55
1.2E-04
6.5E-05
1.8E-04
91-20-3
-Naphthalene
0.45
0.45
0.45
1.7E-08
9.1E-09
2.5E-08
5.1E-08
1.9E-05
1.1E-05
6.9E-04
7.2E-04
129-00-0
-P ne
2.9
2.9
2.9
8.3E-05
4.6E-05
1.3E-04
778249-2
Selenium
0.77
0.77
0.77
1.3E-04
1.5E-10
1.3E-04
7440-22-4
Silver
0.16
0.16
0.16
2.7E-05
2.7E-05
108-88-3
Toluene
0.17
0.17
0.17
1.8E-06
1.7E-06
3.5E-06
75-01-4
Vinyl Chloride
0.17
0.17
0.17
3.7E-08
1.9E-08
5.7E-08
4.9E-05
1.7E-04

DEQ Risk Calculator - Direct Contact - Construction Worker Soil Tier I Soil Screening1
Version Date: June 2021
Basis: May 2021 EPA RSL Table
Site ID:
Exposure Unit ID:
* -Note that inhalation on this calculator refers to outdoor inhalation ofvolatiles andparticutares, not indoor inhalation associated with vapor intrusion.
** - Note that the EPA has no consensus on reference dose or cancer slope factor values for lead, therefore it is not possible to calculate cancer risk or hazard quotient. Lead concentrations are compared to the EPA screening level of800 mglkg
for commerciallindusrrial soil.
Calculated
Cumulative: 3.3&06 8.3E-01
CAS#
Chemical Name:
Ingestion
Concentration
(mg/kg)
Dermal
Concentration
(mg/kg)
Inhalation
Concentration
(mg/kg)*
Ingestion
Carcinogenic
Risk
Dermal
Carcinogenic
Risk
Inhalation
Carcinogenic
Risk
Calculated
Carcinogenic
Risk
Ingestion
Hazard
Quotient
Dermal
Hazard
Quotient
Inhalation
Hazard
Quotient
Non -
Carcinogenic
Hazard
Quotient
67-64-1
Acetone
7.2
7.2
7.2
1.1E-05
1.8E-06
2.9E-05
7440-36-2
Arsenic, Inorganic
24
24
24
8.7E-07
1.4E-07
3.2E-07
1.3E-06
1.4E-01
2.3E-02
3.6E-01
5.2E-01
7440-39-3
Barium
58
58
58
8.5E-04
2.6E-03
3.5E-03
100-62-7
BenzWdeh
0.092
0.092
0.092
1.5E-11
1.5E-I1
1.4E-06
1.4E-06
92-62-4
Biphenyl, 1,1'-
0.058
0.058
0.058
1.9E-11
1.9E-I1
1.7E-06
1.4E-04
14E-04
7440-43-9
Cadmium (Die[)
0.39
0.39
0.39
2.2E-09
2.2E-09
2.3E-03
2.9E-04
8.8E-03
1.1E-02
75-15-0
Carbon Disulfide
0.0013
0.0013
0.0013
3.8E-08
1.7E-06
1.7E-06
16065-63-1
Chromium(III), Insoluble Salts
34
34
34
6.7E-05
1.5E-03
1.6E-03
18640-29-9
Chromium(VI)
1
1
1
2.0E-08
2.6E-07
2.8E-07
5.9E-04
7.5E-04
1.3E-03
96-82-8
Cumene
0.56
0.56
0.56
4.1E-06
1.1E-03
1.1E-03
96-12-8
Dibromo-3-cWmopropane, 1,2-
0.49
0.49
0.49
1.6E-08
13E-06
1.4E-06
7.2E-04
8.2E-03
8.9E-03
106-934
Dibromoethane, 1,2-
0.17
0.17
0.17
1.4E-08
1.7E-07
1.9E-07
5.6E-05
1.0E-02
1.0E-02
132-64-9
-Dibenzofivan
0.59
0.59
0.59
4.3E-04
4.3E-04
7439-92-1
-Lead and Compounds
120
120
120
ESL**
ESL**
6L**
7439-97-6
_Mercury (elemental)
0.21
0.21
0.21
2.2E-02
2.2E-02
79-20-9
Methyl Acetate
1.8
1.8
1.8
5.3E-06
2.4E-03
2.4E-03
78-93-3
Methyl Ethyl Ketone (2-Butanone)
0.036
0.036
0.036
5.3E-08
3.1E-06
3.2E-06
83-32-9
-Ac hthene
0.97
0.97
0.97
1.4E-05
6.0E-06
2.0E-05
120-12-7
-Anthracene
0.64
0.64
0.64
1.9E-06
7.9E-07
2.7E-06
66-66-3
-Henz[a]anthracene
1.6
1.6
1.6
6.5E-09
2.7E-09
6.1E-10
9.8E-09
60-32-8
-Benzc[a]pyrene
1.9
1.9
1.9
7.7E-08
3.2E-08
3.5E-09
1.1E-07
1.9E-02
7.8E-03
2.1E-01
2.4E-01
206-99-2
-Benzo[b]fiuoranthene
2.7
2.7
2.7
1.1E-08
4.5E-09
5.0E-10
1.6E-08
207-08-9
-Benzc[k]fluoranthene
1.1
1.1
1.1
4.4E-10
1.9E-10
2.0E-11
6.5E-10
2I8-01-9
-C ene
1.8
1.8
1.8
7.3E-11
3.0E-11
3.3E-12
1.1E-10
63-70-3
-Dibenz[a,h]antluacene
0.19
0.19
0.19
7.7E-09
3.2E-09
3.5E-10
1.1E-08
206-44-0
-Fluoranthene
3.9
3.9
3.9
1.1E-04
4.8E-05
1.6E-04
86-73-7
-Fluorene
0.76
0.76
0.76
5.6E-06
2.3E-06
7.9E-06
193-39-5
-Indeno[1,2,3-cd] ene
0.4
0.4
0.4
1.6E-09
6.7E-10
7.4E-11
2.4E-09
91-67-6
-Methylnaphthalene, 2-
0.56
0.56
0.56
4.1E-04
1.7E-04
5.7E-04
91-20-3
-Naphthalene
0.45
0.45
0.45
2.2E-09
9.1E-10
4.8E-09
7.9E-09
2.2E-06
9.2E-07
3.5E-03
3.5E-03
129-00-0
-Pyrene
2.9
2.9
2.9
2.8E-06
1.2E-06
4.0E-06
7782-49-2
Selenium
0.77
0.77
0.77
4.5E-04
8.6E-06
4.6E-04
7440-22-4
Silver
0.16
0.16
0.16
9.4E-05
9.4E-05
108-88-3
Toluene
0.17
0.17
0.17
6.3E-07
8.4E-06
9.0E-06
76-01-4
Vinyl Chloride
0.17
0.17
0.17
4.9E-09
1.1E-08
1.6E-08
1.7E-04
2.5E-03
2.6E-03

DEQ Risk Calculator -Direct Contact-RecreatorJFres riser Soil
Version Dale: June 2021
Basis: May 2021 EPA RSL Table
Site ID:
E o re Unit ID:
* - Note that inhalation on this calculator refers to outdoor inhalation of volatiles and particulates, not indoor inhalation associated with vapor intrusion.
* -Note that the EPA has no consensus on reference dose or cancer slope factor values for lead, therefore it is not possible m calculate cancer risk or hazard quotient Lead concentrafions are compared to the EPA screening level of 400
mgAg for residential soil.
Receptor Type:
Calculated
Cumulative: 4.2E-OS 4.8E-01
CAS #
Chemical Name:
Ingestion
Concentration
(mg/kg)
Dermal
Concentration
(mg/kg)
Inhalation
Concentration
(mg/kg)*
Ingestion
Carcinogenic
Risk
Dermal
Carcinogenic
Risk
Inhalation
Carcinogenic
Risk
Calculated
Carcinogenic
Risk
Ingestion
Hazard
Quotient
Dermal
Huard
Quotient
Inhalation
Hazard
Quotient
Non -
Carcmogenic
Hazard
Quotient
67-64-1
Acetone
7.2
7.2
7.2
-OS
5.8E-OS
7440-38-2
Arsenic, Inorganic
24
24
24
1.7E-05
2.4E-06
2.9E-11
2.0E-05
3.4E-01
4.IE-02
1.2E-06
3.8E-01
7440-39-3
Barium
58
58
58
2.1E-03
8.7E-08
2.1E-03
100-52-7
BenzWdeh a
0.092
0.092
0.092
2.9E-10
2.9E-10
6.6E-06
6.6E-06
92-52-4
Biphenyl, 1,1'-
0.058
0.058
0.058
3.7E-10
3.7E-10
8.3E-07
5.3E-05
5.4E-05
744043-9
Cadmium (Diet)
0.39
0.39
0.39
2.0E-13
2.0E-13
2.8E-03
2.6E-04
2.9E-08
3.0E-03
75-15-0
Carbon Disulbde
0.0013
0.0013
0.0013
9.3E-08
2.6E-08
1.2E-07
16065-83-1
Chromiwr(III), Insoluble Salts
34
34
34
1.6E-04
1.6E-04
18540-29-9
C7uomium(VI)
1
1
1
1.8E-06
6.5E-11
1.8E-06
2.4E-03
7.5E-09
2.4E-03
98-62-9
Cumene
0.56
0.56
0.56
4.0E-05
9.4E-06
4.9E-05
96-12-8
Dibromo-3-chloropropwe, 1,2-
0.49
0.49
0.49
1.4E-06
4.0E-06
5.4E-06
1.7E-02
3.2E-03
2.1E-02
I06-93-4
Dibromoethane, 1,2-
0.17
0.17
0.17
2.7E-07
1.8E-07
4.6E-07
1.3E-04
9.1E-05
2.3E-04
132-64-9
-Dibenzo0uw
0.59
0.59
0.59
4.2E-03
4.2E-03
7439-92-1
-Lead and Co owls
120
120
120
6L**
<SL**
6L**
7439-97-6
_Mercury (elemental)
0.21
0.21
0.21
8.4E-04
8.4E-04
79-20-9
Meth lAcetate
1.8
1.8
1.6
1.3E-05
1.3E-05
78-93-3
Methyl Ethyl Ketone (2-Butwone)
0.036
0.036
0.036
4.3E-07
2.5E-08
4.5E-07
63-32-9
-Acew hthene
0.97
0.97
0.97
1.2E-04
3.6E-05
1.5E-04
120-12-7
-Anthracwe
0.64
0.64
0.64
1.5E-05
4.7E-06
2.0E-05
56-55-3
-Henz[a]wthracene
1.6
1.6
1.6
5.8E-07
1.9E-07
9.4E-10
7.8E-07
50-32-8
-Benzo[a]pyrwe
1.9
1.9
1.9
6.9E-06
2.3E-06
8.8E-13
9.2E-06
4.5E-02
1.4E-02
7.1E-07
5.9E-02
205-99-2
-Benzo[b]Ouorwthwe
2.7
2.7
2.7
9.8E-07
3.3E-07
1.3E-13
1.3E-06
207-08-9
-Benzo[k]8uorwthwe
Ll
Ll
Ll
4.0E-08
1.3E-08
5.1E-15
5.3E-08
218-0I-9
-C ene
1.8
1.8
1.8
6.5E-09
2.2E-09
8.3E-16
8.7E-09
53-70-3
-Dibenz[a,h]wthracwe
0.19
0.19
0.19
6.9E-07
2.3E-07
8.8E-14
9.2E-07
206-44-0
-Fluorwthene
3.9
3.9
3.9
6.9E-04
2.1E-04
9.113-04
86-73-7
-Fluorene
0.76
0.76
0.76
1.4E-04
4.2E-05
1.8E-04
193-39-5
-Indew[1,2,3-cd] ne
0.4
0.4
0.4
1.5E-07
4.9E-08
1.9E-14
1.9E-07
91-57-6
-MethylmphthWwe, 2-
0.55
0.55
0.55
9.8E-04
3.0E-04
1.3E-03
91-20-3
-Naphthalene
0.45
0.45
0.45
4.3E-08
1.6E-08
5.1E-09
6.4E-08
1.6E-04
4.9E-05
1.4E-04
3.5E-04
129-00-0
-Pyrene
2.9
2.9
2.9
6.9E-04
2.1E-04
9.0E-04
778249-2
Selenium
0.77
0.77
0.77
1.1E-03
2.9E-11
1.1E-03
7440-224
Silver
0.16
0.16
0.16
2.3E-04
2.3E-04
108-88-3
Toluene
0.17
0.17
0.17
1.5E-05
3.3E-07
1.5E-05
75-014
Vinyl Chloride
0.17
0.17
0.17
1.7EA6
2.4E-07
2.0E-06
4.0E-04
2.413-05
4.3E-04

Risk for Individual Pathways
Tier 2 Soil Screening
Version Date: June 2021
Basis: May 2021 EPA RSL Table
Site ID:
Exposure Unit ID:
DIRECT CONTACT SOIL AND WATER CALCULATORS
Receptor
Pathway
CarcinogenicRisk
Hazard Index
Risk exceeded?
Resident
Soil
6.8E-05
8.5E-01
NO
Groundwater Use*
NC
NC
NC
Non -Residential Worker
Soil
1.0E-05
6.6E-02
NO
Groundwater Use*
NC
NC
NC
Construction Worker
Soil
2.0E-06
8.2E-01
NO
Recreator/Trespasser
Soil
3.7E-05
4.6E-01
NO
Surface Water*
NC
NC
NC
VAPOR INTRUSION CALCULATORS
Receptor
Pathway
CarcinogenicRisk
Hazard Index
Risk exceeded?
Resident
Groundwater to Indoor Air
NC
NC
NC
Soil Gas to Indoor Air
NC
NC
NC
Indoor Air
NC
NC
NC
Non -Residential Worker
Groundwater to Indoor Air
NC
NC
NC
Soil Gas to Indoor Air
NC
NC
NC
Indoor Air
NC
NC
NC
CONTAMINANT MIGRATION CALCULATORS
Pathway
Source
Target Receptor Concentrations Exceeded?
Groundwater
Source Soil
Exceedence of 2L at Receptor?
NC
Source Groundwater
Exceedence of 2L at Receptor?
NC
Surface Water
Source Soil
Exceedence of 2B at Receptor?
NC
Source Groundwater
Exceedence of 2B at Receptor?
NC
Notes:
1. If lead concentrations were entered in the exposure point concentration tables, see the individual calculator sheets for lead
concentrations in comparison to screening levels. Note that lead is not included in cumulative risk calculations.
2. * = If concentrations in groundwater exceed the NC 2L Standards or IMAC, or concentrations in surface water exceed the
NC 2B Standards, appropriate remediation and/or institutional control measures will be necessary to be eligible for a risk -based
closure.
3. NM = Not Modeled
4. NC = Pathway not calculated
North Carolina DEQ Risk Calculator

DEQ Risk Calcnlator -Direct Contact -Resident Soil Output
Version Date: June 2021
Basis: May 2021 EPA RSL Table
Site ID:
Ez osure Uolt ID:
* -Note that inhalation on this calculator refers to outdoor inhalation of volatiles and particulates, not indoor inhalation associated with vapor intrusion.
** -Note that the EPA has no consensus on reference dose or cancer slope factor values for lead therefore it is not possible to calculate cancer risk or hazard quotient. Lead concentrations are compared to the EPA screening level
of 400 mg/kg for residential soil.
75-01-4 Vin Chloride 0.17 0.17 0.17 1.8E-06 2.1E-06 7.2E-04 5.2E-04 1.2E-03
Cumulative: 6.8E-OS 8.5E-Ol
CAS#
Chemical Name:
Ingestion
Concentration
(mg/kg)
Dermal
Concentration
(mg/kg)
Inhalation
Concentration
(mg/kg)*
Ingestion
Carcinogenic
Risk
Dermal
Carcinogenic
Risk
Inhalation
Carcinogenic
Risk*
Calculated
Carcinogenic
Risk
Ingestion
Hazard
Quotient
Dermal
Hazard
Quotient
Inhalation
Hazard
Quotient*
Calculated
Non -
Caroinogenic
Hazard
Quotient
67-64-1
Acetone
7.2
7.2
7.2
1.0E-04
1.5E-05
1.2E-04
7440-38-2
Arseniq Inorganic
24
24
24
3.1E-05
4.4E-06
6.2E-10
3.5E-OS
6.1E-01
7.3E-02
2.6E-OS
6.9E-01
7440-39-3
Barium
58
58
58
3.7E-03
1.9E-06
3.7E-03
100-52-7
Benzaldeh a
0.092
0.092
0.092
5.3E-10
5.3E-10
1.2E-OS
1.2E-OS
92-52-4
Bi henyl, l,l'-
0.058
0.058
0.058
6.7E-10
6.7E-10
1.5E-06
1.1E-03
1.1E-03
7440-43-9
Cadmium Diet
0.39
0.39
0.39
4.2E-12
4.2E-12
5.0E-03
4.7E-04
6.3E-07
5.5E-03
75-15-0
Carbon Disulfide
0.0013
0.0013
0.0013
1.7E-07
5.7E-07
7.3E-07
16065-83-1
Chmi [[ ,Insoluble Salts
ro
34
34
34
2.9E-04
2.9E-04
18540-29-9
Chromium(VI)
1
1
1
3.3E-06
1.4E-09
3.3E-06
4.3E-03
1.6E-07
4.3E-03
98-82-8
Cumene
0.56
0.56
0.56
7.2E-05
2.0E-04
2.7E-04
96-12-8
Dibromo-3-chlor mane, 1,2-
0
0
0
0.0E+00
0.0E+00
0.0E+00
0.0E+00
0.0E+00
0.0E+00
106-93-4
Dibromoetlume, 1,2-
0.17
0.17
0.17
4.9E-07
3.9E-06
4.4E-06
2.4E-04
2.0E-03
2.2E-03
132-64-9
-Dibenzofinan
0.59
0.59
0.59
7.5E-03
7.5E-03
7439-92-1
-Lead and Compounds
120
120
120
<SL**
<SL**
<SL**
7439-97-6
-Mercury (elemental)
0.21
0.21
0.21
1.8E-02
1.8E-02
79-20-9
Meth lAcetate
1.8
1.8
1.8
2.3E-OS
2.3E-05
78-93-3
Mothyl Ethyl Ketone (2-Butanone)
0.036
0.036
0.036
7.7E-07
5.3E-07
1.3E-06
83-32-9
-Arena hthene
0.97
0.97
0.97
2.1E-04
6.4E-OS
2.7E-04
120-12-7
-Anthracene
0.64
0.64
0.64
2.7E-05
8.4E-06
3.6E-05
56-55-3
-Benz a anthracene
1.6
1.6
1.6
1.0E-06
3.5E-07
2.0E-08
1.4E-06
50-32-8
-Benzo[a] ene
1.9
1.9
1.9
1.2E-05
4.1E-06
1.9E-11
1.7E-05
8.1E-02
2.5E-02
1.5E-05
1.1E-01
205-99-2
-Benno fluomnthene
2.7
2.7
2.7
1.8E-06
5.9E-07
2.7E-12
2.4E-06
207-08-9
-Benzo[k]fluoranthene
1.1
1.1
1.1
7.2E-08
2.4E-OS
1.1E-13
9.6E-08
218-01-9
-C ene
1.8
1.8
1.8
1.2E-08
3.9E-09
1.8E-14
1.6E-08
53-70-3
-Dibenz[a,h]anthrncene
0.19
0.19
0.19
1.2E-06
4.1E-07
1.9E-12
1.7E-06
206-44-0
-Fluoranthene
3.9
3.9
3.9
1.2E-03
3.8E-04
1.6E-03
86-73-7
-Fluorene
0.76
0.76
0.76
2.4E-04
7.5E-05
3.2E-04
193-39-5
-Indeno 1,2,3-cd a
0.4
0.4
0.4
2.6E-07
8.7E-08
4.0E-13
3.5E-07
91-57-6
-Meth hthalene, 2-
0.55
0.55
0.55
1.8E-03
5.4E-04
2.3E-03
91-20-3
-Na hthalene
0.45
0.45
0.45
7.8E-08
2.8E-08
1.1E-07
2.2E-07
2.9E-04
8.9E-05
2.9E-03
3.3E-03
129-00-0
a
2.9
2.9
2.9
1.2E-03
3.8E-04
1.6E-03
7782-49-2
Selenium
0.77
0.77
0.77
2.0E-03
6.2E-10
2.0E-03
7440-22-4
Silver
0.16
0.16
0.16
4.1E-04
4.1E-04
108-88-3
Toluene
0.17
0.17
0.17
2.7E-05
7.1E-06
3.4E-05
North Carolina DEO Rlak Calculabr

DEQ Riek Calculator -Direct Contact -Nan-Residential Wnrker Soil
Version Dale: June 2021
Basis: May 2021 EPA RSL Table
Site ID:
E o re Unit ID:
* -ir
Note that inhalation on this calculator refers to outdoor inhalation ofvolariles andparticulates, not indoor inhalation associated with vapor intrusion.
* - Note that the EPA has no consensus on reference dose or cancer slope factor values for lead, therefore it is not possible to calculate cancer risk or hazard quotient. Lead concentrations are compared to the EPA screening level of800
mglkg for commercial/'ndastrial soil.
Cumulative: 1.0E-OS 6.6E-02
CAS#
Chemical Name:
Ingestion
Concentration
(mg/kg)
Dermal
Concentration
(mg/kg)
Inhalation
Concentration
(mg/kg)*
Ingestion
Carcinogenic
Risk
Dermal
Carcinogenic
Risk
Inhalators
Carcinogenic
Risk
Calculated
Carcinogenic
Risk
Ingestion
Hazard
Quotient
Dermal
Hazard
Quotient
Inhalators
Hazard
Quotient
Calculated
Non -
Carcinogenic
Hazard
Quotient
67-64-1
Acetone
7.2
7.2
7.2
6.8E-06
3.6E-06
1.0E-05
7440-38-2
Arsenic, Inorganic
24
24
24
6.6E-06
1.4E-06
1.4E-10
8.0E-06
4.1E-02
8.7E-03
6.2E-06
5.0E-02
7440-39-3
Barium
58
58
58
2.5E-04
4.5E-07
2.5E-04
100-52-7
Benzaldehyde
0.092
0.092
0.092
1.1E-10
1.1E-10
7.9E-07
7.9E-07
92-52-4
Bi hen 1, 1,1'-
0.058
0.058
0.058
1.4E-10
1.4E-10
9.9E-08
2.7E-04
2.7E-04
7440-43-9
Cadmium (Diet)
0.39
0.39
0.39
9.6E-13
9.6E-13
3.3E-04
5.7E-05
1.5E-07
3.9E-04
75-15-0
Carbon Disulfide
0.0013
0.0013
0.0013
1.1E-08
1.3E-07
1.5E-07
16066-83-1
Chromium(HI), Insoluble Salts
34
34
34
1.9E-05
1.9E-05
18540-29-9
Ctuomium(VI)
1
1
1
1.5E-07
1.2E-10
1.5E-07
2.9E-04
3.8E-08
2.9E-04
98-82-8
Cumene
0.56
0.56
0.56
4.8E-06
4.8E-05
5.3E-05
96-12-8
Dibromo-3-chloro ro ane, 1,2-
0
0
0
0.0E+00
0.0E+00
0.0E+00
0.0E+00
0.0E+00
0.0E+00
106-93-4
Dibromoethane, 1,2-
0.17
0.17
0.17
1.0E-07
9.0E-07
1.0E-06
1.6E-05
4.7E-04
4.8E-04
132-64-9
-Dibenzofivan
0.59
0.59
0.59
5.1E-04
5.1U04
7439-92-1
-Lead and Compounds
120
120
120
6L«.
61,«.
61,««
7439-97-6
-Mercury (elemental)
0.21
0.21
0.21
4.3E-03
4.3E-03
79-20-9
Methyl Acetate
1.8
1.8
1.8
1.5E-06
1.5E-06
78-93-3
Methyl EthKetone (2-Butanone
0.036
0.036
0.036
5.1E-08
1.3E-07
1.8E-07
83-32-9
-Acenaphthene
0.97
0.97
0.97
1.4E-05
7.6E-06
2.1E-05
120-12-7
-Anthracene
0.64
0.64
0.64
1.8E-06
1.0E-06
2.8E-06
56-55-3
-Benz[a]anthracene
1.6
1.6
1.6
4.9E-08
2.7E-08
1.7E-09
7.8E-08
50-32-8
-Benzo[a] ene
1.9
1.9
1.9
5.8E-07
3.2E-07
1.6E-12
9.0E-07
5.4E-03
3.0E-03
3.7E-06
8.4E-03
205-99-2
-Benzc[b]fiuoranthene
2.7
2.7
2.7
8.3E-08
4.5E-08
2.2E-13
1.3E-07
207-08-9
-Benzo[k]fluoranOsene
1.1
1.1
1.1
3.4E-09
1.9E-09
9.1E-16
5.2E-09
218-01-9
-Chrysene
1.8
1.8
1.8
5.5E-10
3.0E-10
1.5E-I5
8.5E-10
53-70-3
-Dibenz[a,h]anthmcene
0.19
0.19
0.19
5.8E-08
3.2E-08
1.6E-13
9.0E-08
206-44-0
-Fluoranthene
3.9
3.9
3.9
8.3E-05
4.6E-05
1.3E-04
86-73-7
-Fluorene
0.76
0.76
0.76
1.6E-05
9.0E-06
2.5E-05
193-39-5
-Indeno[1,2,3-cd]pyrene
0.4
0.4
0.4
1.2E-08
6.7&09
3.3E-14
1.9E-08
91-57-6
-Meth Ina htlsalene, 2-
0.55
0.55
0.55
1.2E-04
6.5E-06
1.8E-04
91-20-3
-Naphthalene
0.45
0.45
0.45
1.7E-08
9.1E-09
2.5E-08
5.1E-08
1.9E-05
1.1E-05
6.9E-04
7.2E-04
129-00-0
- ene
2.9
2.9
2.9
8.3E-05
4.6E-05
1.3E-04
7782-49-2
Selenium
0.77
0.77
0.77
1.3E-04
1.5E-10
1.3E-04
7440-22-4
Silver
0.16
0.16
0.16
2.7E-05
2.7E-05
108-88-3
Toluene
0.17
0.17
0.17
1.8E-06
1.7E-06
3.5E-06
75-01-4
Vinyl Chloride
0.17
0.17
0.17
3.7E-08
1.9E-08
5.7E-08
4.9E-05
1.2E-04
1.7E-04

DEQ Risk Calculator - Direct Contact- Construction Worker Soil Ilei 2 Soilcreenin t
Version Date: June 2021
Basis: May 2021 EPA RSL Table
Site ID:
Exposure Unit ID:
• - Note that inhalation on this calculator refers to outdoor inhalation ofvolakles andparticu/aces, not indoor inhalation associated with vapor Mauston.
" - Note that the EPA has no consensus on reference dose or cancer slope factor values for lead, therefore it is nat possible to calculate cancer risk or hazard quotient Lead concentrations are compared to the EPA screening level of800 mglkg
for commerciallindustrlal soil.
Cumulative: 2.0E-06 8.2E-01
CAS #
Chemical Name:
Ingestion
Concentration
(mg/kg)
Dermal
Concentration
(mg/kg)
Inhalation
Concentration
(mg/kg)'
Ingestion
Carcinogenic
Risk
Dermal
Carcinogenic
Rink
Inhalation
Carcinogenic
Risk
Calculated
Carcinogenic
Risk
Ingestion
Hazard
Quotient
Dermal
Hazard
Quotient
Inhalation
Hazard
Quotient
Calculated
Non -
Carcinogenic
Hazard
Quotient
67-64-1
Acetone
7.2
7.2
7.2
1.1E-06
1.8E-05
2.9E-05
7440-38-2
Arsenic, Inorganic
24
24
24
8.7E-07
1.4E-07
3.2E-07
1.3E-06
L4E-01
2.3E-02
3.6E-01
51E-01
7440-39-3
Barium
58
58
58
8.5E-04
2.6E-03
3.5E-03
100-52-7
Benzaldehyde
0.092
0.092
0.092
1.5E-11
LSE-11
1.4E-06
1.4E-06
92-52-4
Bi hen 1, 1,1'-
0.058
0.068
0.058
1.9E-11
1.9E-11
1.7E-06
1.4E-04
1.4E-U4
7440-43-9
Cadmium (Diet)
0.39
0.39
0.39
2.2E-09
2.2E-09
2.3E-03
2.9E-04
8.8E-03
l.1E-02
75-15-0
Carbon Disulfide
0.0013
0.0013
0.0013
3.8E-08
1.7E-06
1.7E-06
16065-83-1
Chromium(III), Insoluble Salts
34
34
34
6.7E-OS
1.5E-03
1.6E-03
18640-29-9
Chromium(VI)
1
1
1
2.0E-08
2.6E-07
2.8E-07
5.9E-04
7.5E-04
1.3E-03
98-82-8
Cumene
0.56
0.56
0.56
4.1E-06
1.1E-03
1.1E-03
96-12-8
Dibromo-3-chloro ro one, 1,2-
0
0
0
0.0E+00
0.0E+00
0.0E+00
0.0E+00
0.0E+00
0.0E+00
106-93-4
Dibromoethane, 1,2-
0.17
0.17
0.17
1.4E-08
1.7E-07
L9E-07
5.6E-OS
1.0E-02
1.0E-02
132-64-9
-Dibenzofinan
0.59
0.59
0.59
4.3E-04
4.3E-04
7439-92-1
dead and Compounds
120
120
120
<SL"«
<SL*«
<SL"«
7439-97-6(elemental)
0.21
0.21
0.21
2.2E-02
2.2E-02
79-20-9
Methyl Acetate
1.8
1.8
1.8
5.3E-06
2.4E-03
2.4E-03
78-93-3
Methyl Ethyl Ketone (2-Butanone)
0.036
0.036
0.036
5.3E-08
3.1E-06
3.2E-06
83-32-9
-Acenaphthene
0.97
0.97
0.97
1.4E-OS
6.0E-06
2.0E-05
120-12-7
-P.nOvacene
0.64
0.64
0.64
1.9E-06
7.9E-07
2.7E-06
56-55-3
-Benz[a]anthracene
1.6
1.6
1.6
6.5E-09
2.7E-09
6.1E-10
9.8E-09
60-32-8
-Benzo[a] ene
1.9
1.9
1.9
7.7E-08
3.2E-08
3.5E-09
1.1E-07
1.9E-02
7.8E-03
2.1)r01
2A)r01
205-99-2
-Benzo@]Ruoranthene
2.7
2.7
2.7
1.1E-08
4.5E-09
5.0E-10
L6E-08
207-08-9
-Benzo[k]Ouoranthene
1.1
1.1
1.1
4.4E-10
1.9E-10
2.0E-11
6.5E-10
218-01-9
-Chrysene
1.8
1.8
1.8
7.3E-11
3.0E-I1
3.3E-12
11E-10
63-70-3
-Dibenz[a,h]antivacene
0.19
0.19
0.19
7.7E-09
3.2E-09
3.5E-10
1.1E-08
206-44-0
-Fluoranthene
3.9
3.9
3.9
1.1E-04
4.8E-OS
1.6E-04
86-73-7
-Fluorene
0.76
0.76
0.76
5.6E-06
2.3E-06
7.9B-06
193-39-5
-Indeno[1,2,3-cd]pyrene
0.4
0.4
0.4
1.6E-09
6.7E-10
7.4E-11
2.4E-09
91-57-6
-Meth Ina hthalene, 2-
0.55
0.55
0.55
4.1E-04
1.7E-04
5.76-04
91-20-3
-Naphthalene
0.45
0.45
0.45
2.2E-09
9.1E-10
4.8E-09
7.9E-09
2.2E-06
9.2E-07
3.5E-03
3.5E-03
129-00-0
2.9
2.9
2.9
2.8E-05
1.2E-05
4.0E-OS
7782-49-2
Selenium
0.77
0.77
0.77
4.5E-04
8.6E-06
4.6E-04
7440-22-4
Silver
0.16
0.16
0.16
9.4E-05
9.4E-05
108-88-3
Toluene
0.17
0.17
0.17
6.3E-07
8.4E-06
9.0E-06
75-01-4
Vinyl Chloride
0.17
0.17
0.17
4.9E-09
1.1 E-OS
1.6E-08
I.7E-04
2.5E-03
2.6E-03

DEQ Risk Calculator - Direct Contact - Recreator/Tres riser Soil Tier 2 SoilCreeH1H
Version Date: June 2021
Basis: May 2021 EPA RSL Table
Site ID:
E-Posure Unit ID:
* -Note that inhalation on this calculator refers to outdoor inhalation ofvolatiles andparticutares, not indoor inhalation associated with vapor intrusion.
** - Note that the EPA has no consensus on reference dose or cancer slope factor values for lead, therefore it is not possible to calculate cancer risk or hazard quotient Lead concentrations are compared to the EPA screening level of400
mgAg for residential soil.
Receptor Type:
75-01-4 Vinyl Chloride 0.17 0.17 0.17 1.7E-06 2.4E-07 2.0E-06 4.0E-04 2.4E-OS 4.3E-04
Cumulative: 3.7E-OS 4.6E-01
CAS #
Chemical Name:
Ingestion
Concentration
(mg/kg)
Dermal
Concentration
(mg/kg)
Inhalation
Concentration
(mg/kg)*
Ingestion
Carcinogenic
Rink
Dermal
Carcinogenic
Risk
Inhalation
Carcinogenic
Rink
Calculated
Carcinogenic
Rink
Ingestion
Hazard
Quotient
Dermal
Hazard
Quotient
Inhalation
Hazard
Quotient
Calculated
Non -
Carcinogenic
Hazard
Quotient67-64-1
Acetone
7.2
7.2
7.2
5.7E-05
7.1E-07
5.8E-05
7440-38-2
Arsenic, Inorganic
24
24
24
1.7E-05
2.4E-06
2.9E-11
2.0E-05
3.4E-01
4.1E-02
1.2E-06
3.8E-01
7440-39-3
Ban-58
58
58
2.1E-03
8.7E-08
2.1E-03
100-52-7
Benzaldehyde
0.092
0.092
0.092
2.9E-10
2.9E-10
6.6E-06
6.6E-06
92-52-4
Biphenyl, 1,1'-
0.058
0.058
0.058
3.7E-10
3.7E-10
8.3E-07
5.3E-05
5.4E-OS
7440-43-9
Cadmium (Diet)
0.39
0.39
0.39
2.0E-13
2.0E-13
2.8E-03
2.6E-04
2.9E-08
3.0E-03
75-15-0
Carbw Disulfide
0.0013
0.0013
0.0013
9.3E-08
2.6E-08
1.2E-07
16065-83-1
Chromium(HI), Insoluble Salts
34
34
34
1.6E-04
1.6E-04
18540-29-9
Chromium(VI)
1
1
1
1.8E-06
6.5E-I1
1.8E-06
2.4E-03
7.5E-09
2.4E-03
98-82-8
Cumene
0.56
0.56
0.56
4.0E-05
9.4E-06
4.9E-OS
96-12-8
Dibromo-3-chloropropwe, 1,2-
0
0
0
0.0E+00
0.0E+00
0.0E+00
0.0E+00
0.0E+00
0.0E+00
106-93-4
Dibromoe[hane, 1,2-
0.17
0.17
0.17
2.7E-07
1.8E-07
4.6E-07
1.3E-04
9.1E-OS
2.3E-04
132-64-9
-Dibenzofivan
0.59
0.59
0.59
4.2E-03
4.2E-03
7439-92-1
-Lead and Compowds
120
120
120
<SL**
<SL•*
<SL**
7439-97-6
--Mercury (elemwtal)
0.21
0.21
0.21
8.4E-04
8.4E-04
79-20-9
Methyl Acetate
1.8
1.8
1.8
1.3E-05
1.3E-OS
78-93-3
Methyl Ethyl Ketone (2-Butwwe)
0.036
0.036
0.036
4.3E-07
2.5E-08
4.5E-07
83-32-9
-Acwaphthwe
0.97
0.97
0.97
1.2E-04
3.6E-05
1.5E-04
120-12-7
-AnOnacwe
0.64
0.64
0.64
1.5E-OS
4.7E-06
2.0E-OS
56-55-3
-Benz[a]anfluacwe
1.6
1.6
1.6
5.8E-07
1.9E-07
9.4E-10
7.8E-07
50-32-8
-Benzo[a]pyrwe
1.9
1.9
1.9
6.9E-06
2JE-O6
8.8E-13
9.2E-06
4.5E-02
1.4E-02
7.1E-07
5.9E-02
205-99-2
-Benzo[b]fluoranthwe
2.7
2.7
2.7
9.8E-07
3.3E-07
1.3E-13
1.3E-06
207-08-9
-Benzo[k]fluoranthwe
1.1
1.1
1.1
4.0E-08
1.3E-08
S.lE-IS
5.3E-08
218-01-9
-Chryswe
1.8
1.8
1.8
6.5E-09
2.2E-09
8.3E-I6
8.7E-09
53-70-3
-Dibenz[a,h]antluacwe
0.19
0.19
0.19
6.9E-07
2.3E-07
8.8E-14
9.2E-07
206-44-0
-Fluoranthene
3.9
3.9
3.9
6.9E-04
2.1E-04
9.1E-04
86-73-7
-Fluorwe
0.76
0.76
0.76
1.4E-04
4.2E-05
1.8E-04
193-39-5
-Indwo[1,2,3-cd]pyrwe
0.4
0.4
0.4
1.5E-07
4.9E-08
1.9E-14
1.9E-07
91-57-6
-Methylnaphthalwe, 2-
0.55
0.55
0.55
9.8E-04
3.0E-04
1.3E-03
91-20-3
-Naphthalene
0.45
0.45
0.45
4.3E-08
1.6E-08
5.1E-09
6.4E-08
1.6E-04
4.9E-05
1.4E-04
3.5E-04
129-00-0
-Pyrwe
2.9
2.9
2.9
6.9E-04
2.1E-04
9.0E-04
7782-49-2
Selenium
0.77
0.77
0.77
1.1E-03
2.9E-I1
1.1E-03
7440-22A
Silver
0.16
0.16
0.16
2.3E-04
2.3E-04
108-88-3
Toluene
0.17
0.17
0.17
1.5E-05
3.3E-07
1.5E-05