26090_Smokey Mtn Petroleum_ SoilGasAssessmentReport_20230306_Sealed

ECS SOUTHEAST, LLP "Setting the Standard for Service"
Geotechnical • Construction Materials • Environmental • Facilities uing Firm F-1078
:..:g:sls Firm C-553
SC _ -erina F,,m 3239
July 7, 2023
Mr. Kris Riddle
Brownfields Redevelopment Section
North Carolina Department of Environmental Quality
Reference: Soil Gas Assessment Report
Former Smokey Mountain Petroleum Company Site
21 and 99999 Governors View Road
Asheville, Buncombe County, North Carolina
ECS Project No. 49-13699-F
On behalf of our client, Buckeye Community Hope Foundation ECS has prepared this sealed cover letter
for the above -referenced report, dated March 6, 2023. As such, I Don R. Marlor a Licensed Geologist for
ECS Southeast, LLP, do certify that the information contained in the referenced report is correct and
accurate to the best of my knowledge, and at the time of the completion of the report.
Respectfully,
ECS SOUTHEAST, LLP as represented by:
O/ 1M0u91910"
JJ CA
Don R. Marlor, P.I.Z t SEA,• Z '7 3
Environmental Prijec Mana2645 i
dmarlor@ecslimit*.d.c{n qri
828-785-4183%, Q�NCFOLO,G��{ 0+�
pti....... r-Q`#,d'
Roger A. Smith, P.G.
Principal Geologist
[e-mail]
704-378-9015
ECS Capitol Services, PLLC • ECS Florida. LLC • ECS Mid -Atlantic, LLC • ECS Midwest, LLC • ECS Southeast, LLP • ECS Southwest. LLP
wwrv.ecslimited.com

SOIL GAS ASSESSMENT
FORMER SMOKEY MOUNTAIN PETROLEUM COMPANY
21 AND 99999 GOVENORS VIEW ROAD
ASHEVILLE, BUNCOMBE COUNTY, NORTH CAROLINA
��� J 3�] I �� � ► I�� �:Ai �%1:1:IS �
PREPARED FOR
BUCKEYE COMMUNITY HOPE FOUNDATION
March 6, 2023

ECS SOUTHEAST, LLP "Setting the Standard for Service"
Geotechnical • Construction Materials • Environmental • Facilities NC Registered Engineering Firm F-1078
NC Registered Geologists Firm C-553
SC Registered Engineering Firm 3239
March 6, 2023
Mr. Steve Sceranka
Buckeye Community Hope Foundation
3021 E. Dublin -Granville Road
Columbus, Ohio 43231
Reference: Soil Gas Assessment Report
Former Smokey Mountain Petroleum Company Site
21 and 99999 Governors View Road
Asheville, Buncombe County, North Carolina
ECS Project No. 49:13699-F
Dear Mr. Sceranka:
ECS Southeast, LLP (ECS) has prepared this Soil Gas Assessment Report to provide the results of the soil gas
sampling activities conducted at the referenced subject property. These activities were conducted as
authorized by your acceptance of ECS Proposal No. 49:30788P dated April 19, 2022 and approved on
January 3, 2023. Included in this report is a description of the field activities, observations made, and
soil gas laboratory analytical results, as well as ECS' conclusions and recommendations.
ECS appreciates the opportunity to provide our environmental services to you on this project. If you
have any questions concerning this report or this project, please contact us.
Sincerely,
ECS SOUTHEAST, LLP
Don R. Marlor, P.G.
Environmental Project Manager
828-785-4183
dmarlor(@ecslimited.com
Roger A. Smith, P.G.
Principal Geologist
704-378-9015
[e-mail]
ECS Capitol Services, PLLC • ECS Florida, LLC • ECS Mid -Atlantic, LLC • ECS Midwest, LLC • ECS Southeast, LLP • ECS Southwest, LLP
wvvw.ecslimited.com

Soil Gas Assessment Report
Former Smokey Mountain Petroleum Company Site
Asheville, Buncombe County, North Carolina
ECS Project No. 49:13699-F
March 6, 2023
TABLE OF CONTENTS
1.0
PROJECT INFORMATION............................................................................................................... 2
2.0
PREVIOUS INVESTIGATIONS..........................................................................................................2
3.0
OBJECTIVE OF THE ASSESSMENT................................................................................................... 5
4.0
FIELD ACTIVITIES........................................................................................................................... 5
4.1
Soil Gas Samples........................................................................................................................... 5
5.0
RESULTS.......................................................................................................................................6
5.1
Soil Gas Analysis........................................................................................................................... 6
6.0
CONCLUSIONS.............................................................................................................................. 7
7.0
RECOMMENDATIONS................................................................................................................... 7
FIGURES
TABLES
Figure 1 Site Topographic Map
Figure 2 Sample Location Map
Table 1 Summary of Leak Testing Results
Table 2 Summary of Soil Gas Analytical Results
APPENDICIES
Appendix A Soil Boring Logs
Appendix B Laboratory Analytical Report
Appendix C NCDEQ Risk Calculator Results

Soil Gas Assessment Report
Former Smokey Mountain Petroleum Company Site
Asheville, Buncombe County, North Carolina
ECS Project No. 49:13699-F
March 6, 2023
1.0 PROJECT INFORMATION
The subject property is an approximate 2.73-acre site consisting of two parcels (Buncombe County Parcel
Identification Number 965-854-606-00000 and 965-853-892-20000) located on the north side of
Swannanoa River Road and addressed as 21 and 99999 Governors View Road in Asheville, Buncombe
County, North Carolina. A topographic map of the subject property area is included as Figure 1 and an aerial
of the subject property area with the proposed building footprint is included as Figure 2.
The western parcel (965-854-606-00000) was developed in the 1950's and used as a trucking terminal until
the late 1980's. The eastern parcel (965-853-892-20000) was formerly used as a petroleum storage and
distribution facility (Smokey Mountain Petroleum Company) that reportedly had 19 above ground storage
tanks (ASTs) and 5 or 6 below ground storage tanks (USTs) that contained various petroleum products from
the 1960's until 2004. The subject property is currently vacant and overgrown with some remnant concrete
slabs and block walls of former site structures along with some former gravel drive/parking areas.
2.0 PREVIOUS INVESTIGATIONS
ECS previously completed a Phase I Environmental Site Assessment (ESA) at the subject property dated
December 30, 2021 (ECS Project No. 13699-A). According to the Phase I ESA, Smoky Mountain Petroleum
Company, Inc. operated at the subject property from at least 1970 until the early 2000s. The facility
included six (6) vertical 20,000-gallon aboveground storage tanks (ASTs) with associated tuck loading area,
nine (9) horizontal 4,000-gallon ASTs, three (3) horizontal 1,000-gallon ASTs, one (1) horizontal 275 gallon
heating oil AST, four (4) underground storage tanks (USTs) west of facility building, one (1) or two (2) USTs
south of the facility building, and dispensers near the southwest corner of the facility building.
The facility building, ASTs, USTs, and associated distribution systems have reportedly been removed from
the subject property. When the USTs were removed, contaminated soil was identified and removed.
However, soil and groundwater restrictions were placed on the subject property due to remaining
contaminated soil and identified groundwater contamination above regulatory standards. Assessment
following the removal of the ASTs was not conducted at the subject property.
A review of regulatory documentation conducted as part of the Phase I ESA, identified the adjoining property
to the east (currently an Aldi grocery store) was previously developed with D.O. Creasman Co., Inc. Based on
available files, soil and groundwater sampling was performed in several locations on the property previously
by others. Areas of concern on the property included former 1,000 and 4,000-gallon USTs, fuel dispensers, a
waste oil AST, a fuel oil AST, a former 12,000-gallon UST, a hydraulic line leak, and debris piles. One soil
sample was collected and analyzed from each area of concern. Total petroleum hydrocarbon (TPH) diesel
range organics (DRO) was detected at concentrations above the State action level in several soil samples.
Groundwater samples were also collected in several locations on the property. TPH DRO was detected in
each of the groundwater samples collected at concentrations ranging from 150 micrograms per liter (ug/L)
to 3,500 ug/L. A North Carolina 2L Groundwater Quality Standard (NC2LGWQS) does not exist for TPH in
groundwater.
A groundwater sample was collected near the western boundary (near the subject property) which identified
that the groundwater was impacted.
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Soil Gas Assessment Report
Former Smokey Mountain Petroleum Company Site
Asheville, Buncombe County, North Carolina
ECS Project No. 49:13699-F
March 6, 2023
The Phase I ESA identified the following recognized environmental conditions (RECs):
• ECS considered the historical use of the property as a petroleum fuel distribution facility, which
potentially resulted in undocumented releases of petroleum products, a REC for the subject
property.
• Bulk fuel ASTs were located on the property for approximately 30 years. Documentation of
sampling in the areas of the ASTs was not identified during the previous assessments. Based on
the size of the ASTs and extended period of operations, there is a potential for spillage and
overfilling of the tanks and delivery trucks.
• Gasoline dispensers were located near the southwestern corner of the facility building in the
vicinity of the USTs. Documentation indicating when the dispensers were removed or that samples
were collected beneath the dispensers were not available for review.
• Petroleum releases at the eastern adjoining former D.O. Creasman Co., Inc. facility (now an Aldi
store) have occurred and have the potential to impact the subject property. Documentation
regarding the resolution of this incident was not available for review. The open petroleum incident
was considered to present a REC for the subject property.
In addition, the following controlled recognized environmental condition (CREC) was identified by the Phase
I ESA:
• Based on the residual contamination remaining at the property following the UST closure and
associated land use restrictions, ECS considered the releases and land use restrictions a CREC for the
subject property. Future site use and development should be conducted in accordance with the deed
recorded land use restrictions.
Following completion of the Phase I ESA, ECS was authorized on February 15, 2022 by Mr. Steve Boone with
Buckeye Community Hope Foundation to proceed with additional site assessment activities, as described in
ECS Proposal Number 49:29035P. The assessment included the collection and laboratory analysis of limited
soil and groundwater samples from the subject property. These activities and results were summarized in
ECS' Report of Limited Soil and Groundwater Assessment dated April 12, 2022 (ECS Project No. 49:13699-D.
The Limited Soil and Groundwater Assessment activities were conducted by ECS on March 14th and 15th,
2022 and consisted of the collection of ten soil samples and six groundwater samples, for laboratory analysis
from the subject property. Based on the field observations and laboratory analytical results of the soil and
groundwater samples collected during the assessment, ECS concluded the following:
• Ten (10) soil samples were submitted to a North Carolina Certified laboratory for analysis of Volatile
Organic Compounds (VOCs) and Semi -Volatile Organic Compounds (SVOCs) using EPA Methods
8260 and 8270, respectively. One of these soil samples (SB1) was collected in the vicinity of the
former gasoline dispensers. Laboratory analysis of SB-1 detected Naphthalene above its Residential
and Soil -to -Groundwater Maximum Soil Contaminant Concentration (MSCC) and multiple other
targeted VOCs and SVOCs above their respective Soil -to -Groundwater MSCCs. The remaining soil
samples collected in the footprint of the former 4,000-gallon ASTs (SB-2, SB-3, SB-4, and S135),
former 20,000-gallon ASTs (SB-6, SB-7, and SB-10), and former loading area (SB-8 and SB-9) did not
3
Eg

Soil Gas Assessment Report
Former Smokey Mountain Petroleum Company Site
Asheville, Buncombe County, North Carolina
ECS Project No. 49:13699-F
March 6, 2023
contain targeted VOCs or SVOCs above their respective Soil -to -Water, Residential, or Industrial
Commercial MSCCs.
• Six (6) groundwater samples (TW-1 through TW-6) were submitted to a North Carolina certified
laboratory for analysis of VOCs and SVOCs using EPA Methods 8260 and 8270, respectively.
Groundwater sample TW-5, collected in the vicinity of the former 20,000-gallon ASTs, contained
Naphthalene, 1-Methylnaphthalene, and 2-Methylnaphthalene at concentrations above their
respective NC2LGWQS. Additionally, concentrations of Ethylbenzene and Naphthalene detected in
TW-5 exceed both the Residential and Non -Residential Groundwater Screening Levels (GWSL) for
Vapor Intrusion (VI). Groundwater sample TW-6 collected in the vicinity of former gasoline
dispensers detected Benzene, Naphthalene, 1- Methylnaphthalene, and 2-Methylnaphthalene at a
concentration above their respective NC2LGWQS and concentrations of Ethylbenzene,
Naphthalene, and Toluene above their respective Residential and Non -Residential GWSLs for VI.
Groundwater sample TW-4 collected in the vicinity of the former loading area detected 1-
Methylnaphthalene at a concentration above its respective NC2LGWQS.
• Groundwater samples TW-2 and TW-3 located along the eastern property did not contain targeted
VOCs or SVOCs above their respective laboratory method detection limits or their respective
NC2LGWQS. Additionally, TW-1 collected in the vicinity of the former 4,000-gallon ASTs did not
contain targeted VOCs or SVOCs above their respective laboratory method detection limits or their
respective NC2LGWQS.
• Due to the GWSL for VI exceedances, ECS input the groundwater data for samples TW-5 and TW-6
into the NCDEQ Risk Calculator (January 2022 Version). Based on the results of the risk calculators,
detected concentrations in groundwater samples TW-5 and TW-6 exceeded the risk threshold for
Residential occupancy; however, the detected concentrations did not exceed Non -Residential
occupancy.
• Based on detections of compounds identified in the groundwater samples and the absence of
detections in soil sample SB-1, it appears soil and groundwater at the site have been impacted from
the on -site RECs, as previously documented.
Additionally, the Limited Soil and Groundwater Assessment Report made the following recommendations:
• Based on the results, the previously identified soil and groundwater impacts remain from the
previous ASTs and USTs. However, the site currently contains a notice of No Further Action (NFA)
with soil and groundwater use restrictions. Therefore, ECS recommended that if the site is to be
redeveloped, that the existing restrictions be followed.
• Due to the detections in soil sample SB-1 and potential for other petroleum impacts present at the
site, apparent petroleum impacts encountered during construction or demolition activities at the
subject property, ECS recommended that they be properly managed in accordance with NCDEQ
guidance.
• Due to the Residential and Non -Residential vapor intrusion screening level exceedances for
groundwater, ECS recommended conducting a soil gas assessment at the property to verify if
concentrations in soil gas exceed the Residential VISLs. Additionally, a vapor barrier may need to
be incorporated into future development at the subject property.
• Depending upon potential redevelopment plans, the site appears to be eligible for the NCDEQ,
Brownfields program.
4
E

Soil Gas Assessment Report
Former Smokey Mountain Petroleum Company Site
Asheville, Buncombe County, North Carolina
ECS Project No. 49:13699-F
March 6, 2023
Due to the proposed redevelopment of the site as a multi -family residential development, on December 28,
2022, Buckeye Community Hope Foundation completed and submitted a Brownfields Property Application
to the NCDEQ, Brownfields Section for entry of the site into the Brownfields Program. As of the date of this
report, an eligibility determination has not been received from the NCDEQ, Brownfields Section; however,
due to the proposed redevelopment of the property as multi -family residential, the detected site impacts,
the anticipated request from the NCDEQ, Brownfields Section for additional assessment activities, Buckeye
Community Hope Foundation requested that ECS proceed with the above recommended soil gas
assessment. Therefore, the following is a summary of the soil gas sampling activities conducted, the results
received, and conclusions and recommendations.
3.0 OBJECTIVE OF THE ASSESSMENT
The objective of the assessment was to further evaluate the potential for vapor intrusion into the
proposed future site buildings from the documented site soil and groundwater impacts. This assessment
consisted of the collection of soil gas samples in the footprint of the proposed site structure by conducting
the following sampling activities:
• The installation and sampling of eight soil gas points located in the footprint of the proposed building
for analysis of VOCs.
The soil gas samples collected were submitted for laboratory analysis of VOCs by EPA Method TO-15.
The sampling activities were conducted in general accordance with the proposal prepared by ECS (ECS
Proposal No. 49:30788P) dated April 19, 2022 and authorized by Buckeye Community Hope Foundation
on January 3, 2023.
4.0 FIELD ACTIVITIES
4.1 Soil Gas Samples
Number and Sample Location
Initially, ECS proposed the installation and sampling of eight (8) soil gas points (SG-1 through SG-8) within
the proposed building footprint; however, due to encountering refusal (potential concrete, etc.) below
the ground surface in three of the locations, only five of the proposed locations were sampled (SG-1
through SG-3 and SG-7 and SG-8).
On January 20, 2023, ECS environmental personnel installed the five soil gas points in borings advanced
using a decontaminated hand auger within the footprint of the proposed building. ECS also collected
four of the soil gas samples from those points on that same day and returned to the site the following
day to sample the remaining soil gas point (SG-1). The approximate locations of the samples are shown
on Figure 2.
Soil Gas Sample Collection
The soil gas sample points were installed to a depth of approximately 5 feet below ground surface (bgs)
and consisted of a disposable screen and Nylafow tubing placed near the bottom of the boring. The space
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Soil Gas Assessment Report
Former Smokey Mountain Petroleum Company Site
Asheville, Buncombe County, North Carolina
ECS Project No. 49:13699-F
March 6, 2023
around and above the screen was backfilled with approximately one foot of clean coarse sand and a
bentonite seal was placed to the ground surface. The bentonite seal was allowed to hydrate for
approximately 30 minutes before sampling.
The soil gas samples were collected into laboratory provided, individually certified 1-liter Summa
canisters. Prior to collecting each soil gas sample, helium gas was used as a quality assurance / quality
control (QA/QC) measure to confirm the integrity of the probe seal and sampling train at each sample
location. A plastic shroud (approximately 7.5 gallons) was placed and sealed overthe sampling point, train,
and Summa canister and then filled with helium gas. The tubing was connected to the Summa canister.
Prior to sample collection, the Summa canister was fitted with a flow regulator with an approximate flow
rate of 0.2 liters per minute. The probe point tubing and tracer gas tubing was placed through the shroud
wall via rubber grommets. The shroud was placed on the ground and secured with a heavy weight. During
the purging stage, the shroud was flooded with helium gas via the hose placed through the shroud wall
and connected to a reusable Tedlar airbag. A dedicated syringe was used to purge the tubing and sampling
train. At least three volumes of the tubing and sampling train were purged prior to sample collection.
A Model MGD-2002 Multi -Gas Leak detector was connected to the Tedlar airbag, and the air stream being
purged was measured for helium. A helium concentration of less than ten percent helium was considered
acceptable following the third purge. If concentrations greater than ten percent helium was measured,
the probe tube seal was resealed and the leak detection process was repeated.
The vacuum in each canister was recorded before and after sample collection. Sample collection was
terminated when the vacuum reached approximately 5 inches of mercury (in-Hg). A summary of leak
testing results has been included in Table 1.
Sample Analysis
Following sample collection, the canisters were labeled, maintained under Chain of Custody (COC)
protocols and delivered to Pace Analytical. COC protocols were utilized throughout the collection and
transportation of the samples. Each sample was analyzed for VOCs using EPA Method TO-15.
5.0 RESULTS
5.1 Soil Gas Analysis
Results of the laboratory analysis identified that each of the soil gas samples (SG-1, SG-2, SG-3, SG-7 and SG-8)
collected contained several VOCs at concentrations greater than the laboratory reporting limits, but less
than their respective Non -Residential and Residential VISLs, except for the concentration of 2-Propanol
detected in sample SG-3. The isopropanol concentration detected in the SG-2 sample was greater than its
Residential VISL, but less than its Non -Residential VISL. Additionally, the laboratory method detection limit
(MDL) for benzene and 1,3-Butadiene in sample SG-3 were above their respective residential VISL. Other
targeted compounds detected at concentrations greater than the laboratory reporting limits were below
their respective Residential VISLs.
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Soil Gas Assessment Report
Former Smokey Mountain Petroleum Company Site
Asheville, Buncombe County, North Carolina
ECS Project No. 49:13699-F
March 6, 2023
A summary of the soil gas sample analytical results is included as Table 2 and the laboratory report is
included as Appendix B.
In order to further evaluate the potential for vapor intrusion into the proposed site building, and in
accordance with NCDEQ guidance, ECS input the highest concentration of each compound detected or
the MDL (if the MDL was higher than the detected concentrations), from the samples collected into the
NCDEQ Risk Calculator. Based on the results of the NCDEQ Risk Calculator, the concentrations in the soil
gas samples did exceed the residential risk threshold, but not the non-residential risk threshold. Output
from the results of the NCDEQ Risk Calculator are presented in Appendix C.
6.0 CONCLUSIONS
Based on the results of the soil gas sampling conducted for the site, ECS has the following conclusions:
• Laboratory analysis of the soil gas samples collected indicated several VOCs at concentrations greater
than the laboratory reporting limits, but less than their respective VISLs, except for the concentration
of 2-Propanol detected in sample SG-2. The 2-Propanol concentration detected in the SG-2 sample
was greater than its Residential VISL, but less than its Non -Residential VISL. Additionally, the
laboratory MDL for benzene and 1,3-Butadiene in sample SG-3 were above their residential VISL.
• Based on the results of the NCDEQ Risk Calculator, the soil and groundwater concentrations identified
exceed the residential risk threshold, but not the non-residential worker risk thresholds.
7.0 RECOMMENDATIONS
Based on the current redevelopment plans, it is ECS' understanding that the site will include development
of a four-story building utilized for multi -family housing and associated parking and landscaping. Therefore,
ECS makes the following recommendations:
• Continuing to pursue the NCDEQ Brownfields Agreement for the proposed redevelopment;
• Conduct additional soil gas assessment to further evaluate the potential for vapor intrusion for the
proposed site structure. (ECS anticipates that if the site is deemed eligible for entry into the
Brownfields Program, that Brownfields will require this further assessment); and
• Plan on conducting vapor mitigation measures, likely via installation of a vapor intrusion mitigation
system below the proposed site structure(s), during construction activities in order to prevent
migration of vapors into the structure(s).
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FIGURES

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SITE TOPOGRAPHIC MAP
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USGS TOPOGRAPHIC MAP GOVERNORS VIEW ROAD
ASHEVILLE OTEEN, NORTH CAROLINA ASHEVILLE, BUNCOMBE COUNTY,
QUADRANGLE DATED 2019 NORTH CAROLINA
SCALE: 1:24,000 ECS PROJECT NO. 49:13699-F
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LEGEND
N
• APPROXIMATE SOIL GAS SAMPLE LOCATION APPROXIMATE SOIL GAS SAMPLE LOCATION
APPROXIMATE PROPOSED BUILDING BOUNDARY THAT WAS UNABLE TO BE COLLECTED s
SAMPLE LOCATION MAP
SOURCE: GOVERNORS VIEW ROAD
GOOGLE EARTH, DATED 2020 ASHEVILLE, BUNCOMBE COUNTY,
NORTH CAROLINA
ECS PROJECT NO. 49:13699-F
T��

TABLES

TABLE 1
SUMMARY OF LEAK TESTING RESULTS
FORMER SMOKEY MOUNTAIN PETROLEUM COMPANY SITE
21 AND 99999 GOVERNORS VIEW ROAD
ASHEVILLE, BUNCOMBE COUNTY, NORTH CAROLINA
ECS PROJECT NO. 49-13699-F
Sample ID
Helium Concentration in
Shroud (%)
Helium Concentration in
Shroud (ppm)
Helium Readings from
Sample Train (ppm)
1 2 3
1
2
3
1
2
3
SG-1
3.4
3.6
3.1
34,000
36,000
31,000
0
0
0
SG-2
3.2
4.2
4.1
32,000
42,000
41,000
0
0
0
SG-3
4.8
3.2
4.8
48,000
32,000
48,000
0
0
0
SG-7
4.4
3.6
3.1
44,000
36,000
31,000
0
0
0
SG-8
3.8
3.5
3.6
38,000
35,000
36,000
0
0
0
Notes:
ppm = parts per million

Table 2
SUMMARY OF SOIL GAS ANALYTICAL RESULTS
FORMER SMOKEY MOUNTAIN PETROLEUM COMPANY SITE
21 AND 99999 GOVERNORS VIEW ROAD
ASHEVILLE, BUNCOMBE COUNTY, NORTH CAROLINA
ECS PROJECT NO.: 49:13699-F
PARAMETER
ANALYTICAL RESULTS (µg/m3)
RESIDENTIAL VISL
NON-RESIDENTIAL VISL
Sample ID
SG-1
SG-2
SG-3
SG-7
SG-8
Initial Sample Vaccum Reading (in Hg)
-27
-29
-29
-26
-26
Final Sample Vaccum Reading (in Hg)
-5
-5
-5
-5
-5
Sample Date
01/23/23
01/20/23
01/20/23
01/20/23
01/20/23
Volatile Organic Compounds (VOCs) by EPA TO-15
Acetone
9.98
172
<139
<1.39
6.06
NS
NS
Benzene
<0.228
<0.228
<22.8
2.46
4.98
12
160
1,3-Butadiene
<0.230
<0.230
<23.0
<0.230
4.00 J
3.1
41
Carbon Disulfide
<0.317
5.82
<31.7
<0.317
0.520 J
4,900
61,000
Chloromethane
<0.213
0.609
<21.3
<0.213
0.213
630
7,900
yclohexane
<0.259
12.9
406
36.2
0.300 J
42,000
530,000
thanol
18.3
17.2
4,530
<0.500
49.0
NS
NS
thylbenzene
IE
<0.362
<0.362
<36.2
1.98
0.702 J
37
490
-Ethyltoluene
'0.384
<0.384
<38.4
0.416 J
0.594 J
NS
NS
Trichlorofluoromethane (Freon 12)
0.815 J
<0.460
<46.0
,0.460
1.21
NS
NS
Dichlorodifluoromethane
1.16
<0.678
<67.8
<0.678
5.00
700
8,800
Heptane (Heptane, N-)
0.765 J
<0.425
<42.5
34.0
1.19
2,800
35,000
n-Hexane
'0.726
24.5
1,330
49.4
2.24
4,900
61,000
Methylene Chloride
0.472 J
<0.340
<0.340
0.358 J
3,400
53,000
2-Butanone (MEK)
0.793 J
42.2
127 J
<0.240
0.837 J
35,000
440,000
2-Propanol (Isopropanol)
1.64 J
17.8
10,500
<0.649
3.52
1,400
18,000
Propylene (Propene)
<0.160
176
<16.0
<0.160
22.6
21,000
260,000
Tetrachloroethene (Tetrachloroethylene)
<0.553
<0.553 ___ZMF<551EEff
36.1
2.29
280
3,500
Toluene
1.64 J
15.0
<32.8
13.2
5.05
35,000
440,000
1,2,4-Trimethyl benzene
<0.375
<0.375
<37.5
1.28
0.422 J
420
5,300
1,3,5 -Trimethyl benzene
'0.382
<0.382
<38.2
0.486 J
:0.382
420
5,300
2,2,4-Trimethylpentane
0.920 J
18,200
13,000
1.83
NS
NS
m,p-Xylene
0.585
<0.5K
59.0 J
7.20
2.29
700
8,800
o-Xylene
<0.359
<0.359
2.68
0.767 J
700
8,800
Notes:
Results presented in micrograms per cubic meter (µg/m3)
in Hg = Inches of mercury
Residential VISL = NCDEQ-DWM Residential Vapor Instrusion Screening Level (VISL) Indoor Exterior and Sub -Slab Screening Level (January 2023)
Non -Residential VISL = NCDEQ-DWM Non -Residential Vapor Instrusion Screening Level (VISL) Indoor Exterior and Sub -Slab Screening Level (January 2023)
<0.160 = Concentration not detected above its laboratory method detection limit
NS = No Standard Established
J = Estimated concentration detected between laboratory method detection limit and reporting limit
VALUE Concentration reported above Method Detection Limit (MDL)
VALUE Concentration reported above Residential VISL
VALUE Concentration input into risk calculator as worst case scenario
Page 2 of 2

APPENDIX A

Former Smokey Mountain Petroleum
Project Name: Sheet: 1 of 1 Boring No: SG-1
Company
Client: Buckeye Community Hope Foundation Project No.: 49:13699-F
Em
Site Location: 21 and 99999 Governors View Road,
Driller: N/A
Drill Rig: Hand Auger
Ashville, Buncombe County, North Carolina
Latitude/Longitude:
U0
c
i
m
LE
E
j
J
Depth/Elevation
v
Q
Soil Classification
Description
of
Q
of
C
a,
Q
12
a
;_
m
Topsoil
Gravel
CH
Red clay
Brown sandy silt
MH-SM
5
-5
END OF DRILLING AT 5.0 FT
10
-10
15
-15
20
-20
25
-25
30
SZ WL (First Encountered)
Boring Started: Jan 20 2023
1 WL (Completion)
Boring Completed: Jan 20 2023
Remarks: Borings completed by ECS via hand auger
Logged By: Don R. Marlor
Principal Engineer/
Roger Smith
Responsible PG:

Former Smokey Mountain Petroleum
Project Name: Sheet: 1 of 1 Boring No: $G-2
Company
Client: Buckeye Community Hope Foundation Project No.: 49:13699-F
Em
Site Location: 21 and 99999 Governors View Road,
Driller: N/A
Drill Rig: Hand Auger
Ashville, Buncombe County, North Carolina
Latitude/Longitude:
U0
c
i
m
LE
E
j
J
Depth/Elevation
v
Q
Soil Classification
Description
of
Q
of
C
a,
Q
12
a
n
E
Topsoil/Organics
AB
Gravel
Red clay
Dark brown clayey silt
CL ML
Brown/gray silty sand
SM
5
-5
END OF DRILLING AT 5.0 FT
10
-10
15
-15
20
-20
25
-25
30
SZ WL (First Encountered)
Boring Started: Jan 20 2023
1 WL (Completion)
Boring Completed: Jan 20 2023
Remarks: Borings completed by ECS via hand auger
Logged By: Don R. Marlor
Principal Engineer/
Roger Smith
Responsible PG:

Project Name: Former Smokey Mountain Petroleum Sheet: 1 of 1
Company
Client: Buckeye Community Hope Foundation Project No.: 49:13699-F
21 and 99999 Governors View Road,
Site Location: Ashville, Buncombe County, North Carolina Driller: N/A
Latitude/Longitude:
c
UO i m
16 E >
Depth/Elevation v Q Soil Classification
Of cc
E Q tD
d n E
M
Ln
mm�i
10-1 -10
15-1 -15
25 -� -25
ABC Gravel
SM Red/brown sandy silt
Boring No: SG-3
Drill Rig: Hand Auger
Description
Dark brown clayey silt
CL/ML
END OF DRILLING AT 5.0 FT
SZ WL (First Encountered) Boring Started: Jan 20 2023
1 WL (Completion) Boring Completed: Jan 20 2023
Remarks: Borings completed by ECS via hand auger Logged By: Don R. Marlor
Principal Engineer/ Roger Smith
Responsible PG:

Former Smokey Mountain Petroleum
Project Name: Sheet: 1 of 1 Boring No: SG-7
Company
Client: Buckeye Community Hope Foundation Project No.: 49:13699-F
Em
Site Location: 21 and 99999 Governors View Road,
Driller: N/A
Drill Rig: Hand Auger
Ashville, Buncombe County, North Carolina
Latitude/Longitude:
U0
c
i
m
LE
E
j
J
Depth/Elevation
v
Q
Soil Classification
Description
of
Q
cc
C
a,
Q
12
a
n
E
M
Brown sandy silt with organics
SM
5
-5
END OF DRILLING AT 5.0 FT
10
-10
15
-15
20
-20
25
-25
30
SZ WL (First Encountered)
Boring Started: Jan 20 2023
1 WL (Completion)
Boring Completed: Jan 20 2023
Remarks: Borings completed by ECS via hand auger
Logged By: Don R. Marlor
Principal Engineer/
Roger Smith
Responsible PG:

Former Smokey Mountain Petroleum
Project Name: Sheet: 1 of 1 Boring No: SG-8
Company
Client: Buckeye Community Hope Foundation Project No.: 49:13699-F
Em
Site Location: 21 and 99999 Governors View Road,
Driller: N/A
Drill Rig: Hand Auger
Ashville, Buncombe County, North Carolina
Latitude/Longitude:
U0
c
i
m
LE
E
j
J
Depth/Elevation
v
Q
Soil Classification
Description
of
Q
cc
C
a,
Q
12
a
n
E
M
Tan/brown sandy silt
SM
5
-5
END OF DRILLING AT 5.0 FT
10
-10
15
-15
20
-20
25
-25
30
SZ WL (First Encountered)
Boring Started: Jan 20 2023
1 WL (Completion)
Boring Completed: Jan 20 2023
Remarks: Borings completed by ECS via hand auger
Logged By: Don R. Marlor
Principal Engineer/
Roger Smith
Responsible PG:

APPENDIX 6

aceAnalytical
ANALYTICAL REPORT
July 11, 2023
Revised Report
ECS Southeast LLP - Asheville NC
Sample Delivery Group
Samples Received:
Project Number:
Description:
L1579059
01/25/2023
49:13699-F
Redwood Commons
Report To: Don Marlor
1900 Hendersonville Rd, Ste 10
Asheville, NC 28803
Entire Report Reviewed By: 4�41
Heather J Wagner
Project Manager
Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be
reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace
Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and
ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided,
and as the samples are received.
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
ECS Southeast LLP - Asheville NC 49:13699-F L1579059 07/11/23 11:19 1 of 38

TABLE OF CONTENTS
Cp: Cover Page
Tc: Table of Contents
Ss: Sample Summary
3
Cn: Case Narrative
4
Sr: Sample Results
5
SG-2 L1579059-01
5
[Cn]
SG-3 L1579059-02
7
SG-7 L1579059-09
9
Fr
SG-1 L1579059-10
11
SG-8 L1579059-11
13
El
Qc: Quality Control Summary
15
GI
Volatile Organic Compounds (MS) by Method TO-15
15
GI: Glossary of Terms
33
rAl
Al: Accreditations & Locations
34
Sc: Sample Chain of Custody
35
FSC
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
ECS Southeast LLP - Asheville INC 49:13699-F L1579059 07/11/23 11:19 2 of 38

------------
SAMPLE SUMMARY
Collected by Collected date/time Received date/time
SG-2 L1579059-01 Air
Don Marlor
01/23/2315:48
01/25/23 09:00
FP1
Method
Batch
Dilution
Preparation
Analysis
Analyst Location
date/time
date/time
FTC
Volatile Organic Compounds (MS) by Method TO-15
WG1995213
1
01/27/23 00:09
01/27/23 00:09
DAH Mt. Juliet, TN
Volatile Organic Compounds (MS) by Method TO-15
WG1995918
2
01/27/23 22:59
01/27/23 22:59
SDS Mt. Juliet, TN
Volatile Organic Compounds (MS) by Method TO-15
WG1996345
100
01/28/2317:34
01/28/2317:34
DBB Mt. Juliet, TN
Collected by
Collected date/time
Received date/time
Cr1
SG-3 L1579059-02 Air
Don Marlor
01/23/2316:27
01/25/23 09:00
Method
Batch
Dilution
Preparation
Analysis
Analyst Location
FSr
date/time
date/time
Volatile Organic Compounds (MS) by Method TO-15
WG1995894
100
01/27/23 21:42
01/27/23 21:42
DAH Mt. Juliet, TN
RC
Collected by
Collected date/time
Received date/time
F
SG-7 L1579059-09 Air
Don Marlor
01/23/2317:02
01/25/23 09:00
Method
Batch
Dilution
Preparation
Analysis
Analyst Location
FAI
date/time
date/time
Volatile Organic Compounds (MS) by Method TO-15
WG1995894
1
01/27/2317:58
01/27/2317:58
DAH Mt. Juliet, TN
FSC
Collected by
Collected date/time
Received date/time
SG-1 L1579059-10 Air
Don Marlor
01/23/2314:35
01/27/23 08:45
Method
Volatile Organic Compounds (MS) by Method TO-15
SG-8 L1579059-11 Air
Method
Volatile Organic Compounds (MS) by Method TO-15
Batch Dilution Preparation
Analysis
Analyst Location
date/time
date/time
WG1998041 1 02/01/2314:00
02/01/2314:00
DAH Mt. Juliet, TN
Collected by
Collected date/time
Received date/time
Don Marlor
01/23/2316:27
01/27/23 08:45
Batch Dilution Preparation Analysis
date/time date/time
WG1996347 1 01/28/2317:01 01/28/2317:01
Analyst Location
DBB Mt. Juliet, TN
ACCOUNT:
ECS Southeast LLP - Asheville NC
PROJECT: SDG: DATE/TIME: PAGE:
49:13699-F L1579059 07/11/23 11:19 3 of 38

CASE NARRATIVE
FP
All sample aliquots were received at the correct temperature, in the proper containers, with the
appropriate preservatives, and within method specified holding times, unless qualified or notated within
the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples
FC
have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control
are within established criteria except where addressed in this case narrative, a non-conformance form
or properly qualified within the sample results. By my digital signature below, I affirm to the best of my
FSS
knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the
quality of the data have been identified by the laboratory, and no information or data have been
knowingly withheld that would affect the quality of the data.
Fr
RC
F,
Heather J Wagner
FAI
Project Manager
FSC
Report Revision History
Level II Report - Version 1: 02/02/2312:48
Level II Report - Version 2: 02/20/2314:57
Project Narrative
Revised Report: Revised to report results to the MDL per client request. This report replaces the report issued 2/2/2023.
Revised Report: Revised to include summa canister pressure readings on the COC. This report replaces the report issued
2/20/2023.
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
ECS Southeast LLP - Asheville NC 49:13699-F L1579059 07/11/23 11:19 4 of 38

SG-2 SAMPLE RESULTS - 01
Collected date/time: 01/23/23 15:48 L1579059
Volatile Organic Compounds (MS) by Method TO-15
CAS #
Mol. Wt.
MDL
RDL
Result
Qualifier Dilution Batch
u
Analyte
ug/m3
ug/m3
ug/m3
Acetone
67-64-1
58.10
1.39
2.97
172
1 WG1995213
FTc
Allyl chloride
107-05-1
76.53
0.357
0.626
U
1 WG1995213
Benzene
71-43-2
78.10
0.228
0.639
U
1 WG1995213
F
Benzyl Chloride
100-44-7
127
0.311
1.04
U
1 WG1995213
Bromodichloromethane
75-27-4
164
0.471
1.34
U
1 WG1995213
Bromoform
75-25-2
253
0.757
6.21
U
1 WG1995213
rCn
Bromomethane
74-83-9
94.90
0.381
0.776
U
1 WG1995213
1,3-Butadiene
106-99-0
54.10
0.230
4.43
U
1 WG1995213
Carbon disulfide
75-15-0
76.10
0.317
0.622
5.82
1 WG1995213
Carbon tetrachloride
56-23-5
154
0.461
1.26
U
1 WG1995213
Chlorobenzene
108-90-7
113
0.385
0.924
U
1 WG1995213
Rc
Chloroethane
75-00-3
64.50
0.263
0.528
U
1 WG1995213
Chloroform
67-66-3
119
0.349
0.973
U
1 WG1995213
Fq
Chloromethane
74-87-3
50.50
0.213
0.413
0.609
1 WG1995213
2-Chlorotoluene
95-49-8
126
0.427
1.03
U
1 WG1995213
Cyclohexane
110-82-7
84.20
0.259
0.689
12.9
1 WG1995213
FAI
Dibromochloromethane
124-48-1
208
0.618
1.70
U
1 WG1995213
1,2-Dibromoethane
106-93-4
188
0.554
1.54
U
1 WG1995213
F
1,2-Dichlorobenzene
95-50-1
147
0.770
1.20
U
1 WG1995213
1,3-Dichlorobenzene
541-73-1
147
1.09
1.20
U
1 WG1995213
1,4-Dichlorobenzene
106-46-7
147
0.335
1.20
U
1 WG1995213
1,2-Dichloroethane
107-06-2
99
0.283
0.810
U
1 WG1995213
1,1-Dichloroethane
75-34-3
98
0.290
0.802
U
1 WG1995213
1,1-Dichloroethene
75-35-4
96.90
0.302
0.793
U
1 WG1995213
cis-1,2-Dichloroethene
156-59-2
96.90
0.311
0.793
U
1 WG1995213
trans-1,2-Dichloroethene
156-60-5
96.90
0.267
0.793
U
1 WG1995213
1,2-Dichloropropane
78-87-5
113
0.351
0.924
U
1 WG1995213
cis-1,3-Dichloropropene
10061-01-5
111
0.313
0.908
U
1 WG1995213
trans-1,3-Dichloropropene
10061-02-6
111
0.331
0.908
U
1 WG1995213
1,4-Dioxane
123-91-1
88.10
0.300
0.721
U
1 WG1995213
Ethanol
64-17-5
46.10
0.500
2.36
17.2
1 WG1995213
Ethylbenzene
100-41-4
106
0.362
0.867
U
1 WG1995213
4-Ethyltoluene
622-96-8
120
0.384
0.982
U
1 WG1995213
Trichlorofluoromethane
75-69-4
137.40
0.460
1.12
U
1 WG1995213
Dichlorodifluoromethane
75-71-8
120.92
0.678
0.989
U
1 WG1995213
1,1,2-Trichlorotrifluoroethane
76-13-1
187.40
0.608
1.53
U
1 WG1995213
1,2-Dichlorotetrafluoroethane
76-14-2
171
0.622
1.40
U
1 WG1995213
Heptane
142-82-5
100
0.425
0.818
U
1 WG1995213
Hexachloro-1,3-butadiene
87-68-3
261
1.12
6.73
U
1 WG1995213
n-Hexane
110-54-3
86.20
0.726
2.22
24.5
1 WG1995213
Isopropylbenzene
98-82-8
120.20
0.382
0.983
U
1 WG1995213
Methylene Chloride
75-09-2
84.90
0.340
0.694
U
1 WG1995213
Methyl Butyl Ketone
591-78-6
100
0.544
5.11
U
1 WG1995213
2-Butanone (MEK)
78-93-3
72.10
0.240
3.69
42.2
1 WG1995213
4-Methyl-2-pentanone (MIBK)
108-10-1
100.10
0.313
5.12
U
1 WG1995213
Methyl methacrylate
80-62-6
100.12
0.359
0.819
U
1 WG1995213
MTBE
1634-04-4
88.10
0.233
0.721
U
1 WG1995213
Naphthalene
91-20-3
128
1.83
3.30
U
1 WG1995213
2-Propanol
67-63-0
60.10
1.30
6.15
17.8
2 WG1995918
Propene
115-07-1
42.10
0.320
4.30
176
2 WG1995918
Styrene
100-42-5
104
0.335
0.851
U
1 WG1995213
1,1,2,2-Tetrachloroethane
79-34-5
168
0.511
1.37
U
1 WG1995213
Tetrachloroethylene
127-18-4
166
0.553
1.36
U
1 WG1995213
Tetrahydrofuran
109-99-9
72.10
0.216
0.590
U
1 WG1995213
Toluene
108-88-3
92.10
0.328
1.88
15.0
1 WG1995213
1,2,4-Trichlorobenzene
120-82-1
181
1.10
4.66
U
1 WG1995213
ACCOUNT:
PROJECT:
SDG: DATE/TIME:
PAGE:
ECS Southeast
LLP - Asheville
NC
49:13699-F
L1579059 07/11/23 11:19
5 of 38

SG-2 SAMPLE RESULTS - 01
Collected date/time: 01/23/23 15:48 L1579059
Volatile Organic Compounds (MS) by Method TO-15
CAS #
Mol. Wt.
MDL
Analyte
ug/m3
1,1,1-Trichloroethane
71-55-6
133
0.400
1,1,2-Trichloroethane
79-00-5
133
0.422
Trichloroethylene
79-01-6
131
0.364
1,2,4-Trimethylbenzene
95-63-6
120
0.375
1,3,5-Trimethyl benzene
108-67-8
120
0.382
2,2,4-Trimethyl pentane
540-84-1
114.22
62.1
Vinyl chloride
75-01-4
62.50
0.243
Vinyl Bromide
593-60-2
106.95
0.373
Vinyl acetate
108-05-4
86.10
0.408
m&p-Xylene
1330-20-7
106
0.585
o-Xylene
95-47-6
106
0.359
(S)
1,4 -Bromof/uorobenzene
460-00-4
175
1,4 J
Bromofluorobenzene
460-00-4
175
(S)
1,4-Bromofluorobenzene
460-00-4
175
Sample Narrative:
L1579059-01 WG1995918: Surrogate failure due to matrix interference.
RDL Result
ug/m3 ug/m3
1.09
1.09
1.07
0.982
0.982
93.4
0.511
0.875
0.704
1.73
0.867
U
U
U
U
U
18200
U
U
U
U
U
143
195
100
Qualifier Dilution Batch
1 WG1995213
1 WG1995213
1 WG1995213
1 WG1995213
1 WG1995213
100 WG1996345
1 WG1995213
1 WG1995213
1 WG1995213
1 WG1995213
1 WG1995213
J1 60.0-140 WG1995213
J1 60.0-140 WG1995918
60.0-140 WG1996345
FP1
FTc
FSS
4
Cn
Rc
I q,
FAI
FSC
ACCOUNT:
ECS Southeast LLP - Asheville NC
PROJECT: SDG: DATE/TIME: PAGE:
49:13699-F L1579059 07/11/23 11:19 6 of 38

SG-3 SAMPLE RESULTS - 02
Collected date/time: 01/23/23 16:27 L1579059
Volatile Organic Compounds (MS) by Method TO-15
CAS #
Mol. Wt.
MDL
RDL
Result
Qualifier Dilution
Batch
u
Analyte
ug/m3
ug/m3
ug/m3
Acetone
67-64-1
58.10
139
297
U
100
WG1995894
FTc
Allyl chloride
107-05-1
76.53
35.7
62.6
U
100
WG1995894
Benzene
71-43-2
78.10
22.8
63.9
U
100
WG1995894
F
Benzyl Chloride
100-44-7
127
31.1
104
U
100
WG1995894
Bromodichloromethane
75-27-4
164
47.1
134
U
100
WG1995894
Bromoform
75-25-2
253
75.7
621
U
100
WG1995894
rCn
Bromomethane
74-83-9
94.90
38.1
77.6
U
100
WG1995894
1,3-Butadiene
106-99-0
54.10
23.0
443
U
100
WG1995894
Carbon disulfide
75-15-0
76.10
31.7
62.2
U
100
WG1995894
Carbon tetrachloride
56-23-5
154
46.1
126
U
100
WG1995894
Chlorobenzene
108-90-7
113
38.5
92.4
U
100
WG1995894
Rc
Chloroethane
75-00-3
64.50
26.3
52.8
U
100
WG1995894
Chloroform
67-66-3
119
34.9
97.3
U
100
WG1995894
Fq
Chloromethane
74-87-3
50.50
21.3
41.3
U
100
WG1995894
2-Chlorotoluene
95-49-8
126
42.7
103
U
100
WG1995894
Cyclohexane
110-82-7
84.20
25.9
68.9
406
100
WG1995894
FAI
Dibromochloromethane
124-48-1
208
61.8
170
U
100
WG1995894
1,2-Dibromoethane
106-93-4
188
55.4
154
U
100
WG1995894
F
1,2-Dichlorobenzene
95-50-1
147
77.0
120
U
100
WG1995894
1,3-Dichlorobenzene
541-73-1
147
109
120
U
100
WG1995894
1,4-Dichlorobenzene
106-46-7
147
33.5
120
U
100
WG1995894
1,2-Dichloroethane
107-06-2
99
28.3
81.0
U
100
WG1995894
1,1-Dichloroethane
75-34-3
98
29.0
80.2
U
100
WG1995894
1,1-Dichloroethene
75-35-4
96.90
30.2
79.3
U
100
WG1995894
cis-1,2-Dichloroethene
156-59-2
96.90
31.1
79.3
U
100
WG1995894
trans-1,2-Dichloroethene
156-60-5
96.90
26.7
79.3
U
100
WG1995894
1,2-Dichloropropane
78-87-5
113
35.1
92.4
U
100
WG1995894
cis-1,3-Dichloropropene
10061-01-5
111
31.3
90.8
U
100
WG1995894
trans-1,3-Dichloropropene
10061-02-6
111
33.1
90.8
U
100
WG1995894
1,4-Dioxane
123-91-1
88.10
30.0
72.1
U
100
WG1995894
Ethanol
64-17-5
46.10
50.0
236
4530
100
WG1995894
Ethylbenzene
100-41-4
106
36.2
86.7
U
100
WG1995894
4-Ethyltoluene
622-96-8
120
38.4
98.2
U
100
WG1995894
Trichlorofluoromethane
75-69-4
137.40
46.0
112
U
100
WG1995894
Dichlorodifluoromethane
75-71-8
120.92
67.8
98.9
U
100
WG1995894
1,1,2-Trichlorotrifluoroethane
76-13-1
187.40
60.8
153
U
100
WG1995894
1,2-Dichlorotetrafluoroethane
76-14-2
171
62.2
140
U
100
WG1995894
Heptane
142-82-5
100
42.5
81.8
U
100
WG1995894
Hexachloro-1,3-butadiene
87-68-3
261
112
673
U
100
WG1995894
n-Hexane
110-54-3
86.20
72.6
222
1330
100
WG1995894
Isopropylbenzene
98-82-8
120.20
38.2
98.3
U
100
WG1995894
Methylene Chloride
75-09-2
84.90
34.0
69.4
U
100
WG1995894
Methyl Butyl Ketone
591-78-6
100
54.4
511
U
100
WG1995894
2-Butanone (MEK)
78-93-3
72.10
24.0
369
127
J 100
WG1995894
4-Methyl-2-pentanone (MIBK)
108-10-1
100.10
31.3
512
U
100
WG1995894
Methyl methacrylate
80-62-6
100.12
35.9
81.9
U
100
WG1995894
MTBE
1634-04-4
88.10
23.3
72.1
U
100
WG1995894
Naphthalene
91-20-3
128
183
330
U
100
WG1995894
2-Propanol
67-63-0
60.10
64.9
307
10500
100
WG1995894
Propene
115-07-1
42.10
16.0
215
U
100
WG1995894
Styrene
100-42-5
104
33.5
85.1
U
100
WG1995894
1,1,2,2-Tetrachloroethane
79-34-5
168
51.1
137
U
100
WG1995894
Tetrachloroethylene
127-18-4
166
55.3
136
U
100
WG1995894
Tetrahydrofuran
109-99-9
72.10
21.6
59.0
U
100
WG1995894
Toluene
108-88-3
92.10
32.8
188
U
100
WG1995894
1,2,4-Trichlorobenzene
120-82-1
181
110
466
U
100
WG1995894
ACCOUNT:
PROJECT:
SDG:
DATE/TIME:
PAGE:
ECS Southeast
LLP - Asheville
NC
49:13699-F
L1579059
07/11/23 11:19
7 of 38

SG-3 SAMPLE RESULTS - 02
Collected date/time: 01/23/23 16:27 L1579059
Volatile Organic Compounds (MS) by Method TO-15
CAS #
Mol. Wt.
MDL
RDL
Result
Qualifier Dilution
Batch
Analyte
ug/m3
ug/m3
ug/m3
1,1,1-Trichloroethane
71-55-6
133
40.0
109
U
100
WG1995894
1,1,2-Trichloroethane
79-00-5
133
42.2
109
U
100
WG1995894
Trichloroethylene
79-01-6
131
36.4
107
U
100
WG1995894
1,2,4-Trimethylbenzene
95-63-6
120
37.5
98.2
U
100
WG1995894
1,3,5-Trimethyl benzene
108-67-8
120
38.2
98.2
U
100
WG1995894
2,2,4-Trimethyl pentane
540-84-1
114.22
62.1
93.4
13000
100
WG1995894
Vinyl chloride
75-01-4
62.50
24.3
51.1
U
100
WG1995894
Vinyl Bromide
593-60-2
106.95
37.3
87.5
U
100
WG1995894
Vinyl acetate
108-05-4
86.10
40.8
70.4
U
100
WG1995894
m&p-Xylene
1330-20-7
106
58.5
173
59.0
J 100
WG1995894
o-Xylene
95-47-6
106
35.9
86.7
U
100
WG1995894
(S)
1,4 -Bromof/uorobenzene
460-00-4
175
97.7
60.0-140
WG1995894
FP1
FTc
FSS
4
Cn
Rc
F
FAI
FSC
ACCOUNT:
ECS Southeast LLP - Asheville NC
PROJECT: SDG: DATE/TIME: PAGE:
49:13699-F L1579059 07/11/23 11:19 8 of 38

SG-7 SAMPLE RESULTS - 09
Collected date/time: 01/23/23 17:02 L1579059
Volatile Organic Compounds (MS) by Method TO-15
CAS #
Mol. Wt.
MDL
RDL
Result
Qualifier Dilution Batch
u
Analyte
ug/m3
ug/m3
ug/m3
Acetone
67-64-1
58.10
1.39
2.97
U
1 WG1995894
FTc
Allyl chloride
107-05-1
76.53
0.357
0.626
U
1 WG1995894
Benzene
71-43-2
78.10
0.228
0.639
2.46
1 WG1995894
F
Benzyl Chloride
100-44-7
127
0.311
1.04
U
1 WG1995894
Bromodichloromethane
75-27-4
164
0.471
1.34
U
1 WG1995894
Bromoform
75-25-2
253
0.757
6.21
U
1 WG1995894
rCn
Bromomethane
74-83-9
94.90
0.381
0.776
U
1 WG1995894
1,3-Butadiene
106-99-0
54.10
0.230
4.43
U
1 WG1995894
Carbon disulfide
75-15-0
76.10
0.317
0.622
U
1 WG1995894
Carbon tetrachloride
56-23-5
154
0.461
1.26
U
1 WG1995894
Chlorobenzene
108-90-7
113
0.385
0.924
U
1 WG1995894
Rc
Chloroethane
75-00-3
64.50
0.263
0.528
U
1 WG1995894
Chloroform
67-66-3
119
0.349
0.973
U
1 WG1995894
Fq
Chloromethane
74-87-3
50.50
0.213
0.413
U
1 WG1995894
2-Chlorotoluene
95-49-8
126
0.427
1.03
U
1 WG1995894
Cyclohexane
110-82-7
84.20
0.259
0.689
36.2
1 WG1995894
FAI
Dibromochloromethane
124-48-1
208
0.618
1.70
U
1 WG1995894
1,2-Dibromoethane
106-93-4
188
0.554
1.54
U
1 WG1995894
F
1,2-Dichlorobenzene
95-50-1
147
0.770
1.20
U
1 WG1995894
1,3-Dichlorobenzene
541-73-1
147
1.09
1.20
U
1 WG1995894
1,4-Dichlorobenzene
106-46-7
147
0.335
1.20
U
1 WG1995894
1,2-Dichloroethane
107-06-2
99
0.283
0.810
U
1 WG1995894
1,1-Dichloroethane
75-34-3
98
0.290
0.802
U
1 WG1995894
1,1-Dichloroethene
75-35-4
96.90
0.302
0.793
U
1 WG1995894
cis-1,2-Dichloroethene
156-59-2
96.90
0.311
0.793
U
1 WG1995894
trans-1,2-Dichloroethene
156-60-5
96.90
0.267
0.793
U
1 WG1995894
1,2-Dichloropropane
78-87-5
113
0.351
0.924
U
1 WG1995894
cis-1,3-Dichloropropene
10061-01-5
111
0.313
0.908
U
1 WG1995894
trans-1,3-Dichloropropene
10061-02-6
111
0.331
0.908
U
1 WG1995894
1,4-Dioxane
123-91-1
88.10
0.300
0.721
U
1 WG1995894
Ethanol
64-17-5
46.10
0.500
2.36
U
1 WG1995894
Ethylbenzene
100-41-4
106
0.362
0.867
1.98
1 WG1995894
4-Ethyltoluene
622-96-8
120
0.384
0.982
0.416
J 1 WG1995894
Trichlorofluoromethane
75-69-4
137.40
0.460
1.12
U
1 WG1995894
Dichlorodifluoromethane
75-71-8
120.92
0.678
0.989
U
1 WG1995894
1,1,2-Trichlorotrifluoroethane
76-13-1
187.40
0.608
1.53
U
1 WG1995894
1,2-Dichlorotetrafluoroethane
76-14-2
171
0.622
1.40
U
1 WG1995894
Heptane
142-82-5
100
0.425
0.818
34.0
1 WG1995894
Hexachloro-1,3-butadiene
87-68-3
261
1.12
6.73
U
1 WG1995894
n-Hexane
110-54-3
86.20
0.726
2.22
49.4
1 WG1995894
Isopropylbenzene
98-82-8
120.20
0.382
0.983
U
1 WG1995894
Methylene Chloride
75-09-2
84.90
0.340
0.694
U
1 WG1995894
Methyl Butyl Ketone
591-78-6
100
0.544
5.11
U
1 WG1995894
2-Butanone (MEK)
78-93-3
72.10
0.240
3.69
U
1 WG1995894
4-Methyl-2-pentanone (MIBK)
108-10-1
100.10
0.313
5.12
U
1 WG1995894
Methyl methacrylate
80-62-6
100.12
0.359
0.819
U
1 WG1995894
MTBE
1634-04-4
88.10
0.233
0.721
U
1 WG1995894
Naphthalene
91-20-3
128
1.83
3.30
U
1 WG1995894
2-Propanol
67-63-0
60.10
0.649
3.07
U
1 WG1995894
Propene
115-07-1
42.10
0.160
2.15
U
1 WG1995894
Styrene
100-42-5
104
0.335
0.851
U
1 WG1995894
1,1,2,2-Tetrachloroethane
79-34-5
168
0.511
1.37
U
1 WG1995894
Tetrachloroethylene
127-18-4
166
0.553
1.36
36.1
1 WG1995894
Tetrahydrofuran
109-99-9
72.10
0.216
0.590
U
1 WG1995894
Toluene
108-88-3
92.10
0.328
1.88
13.2
1 WG1995894
1,2,4-Trichlorobenzene
120-82-1
181
1.10
4.66
U
1 WG1995894
ACCOUNT:
PROJECT:
SDG: DATE/TIME:
PAGE:
ECS Southeast
LLP - Asheville
NC
49:13699-F
L1579059 07/11/23 11:19
9 of 38

SG-7 SAMPLE RESULTS - 09
Collected date/time: 01/23/23 17:02 L1579059
Volatile Organic Compounds (MS) by Method TO-15
CAS #
Mol. Wt.
MDL
RDL
Result
Qualifier Dilution Batch
Analyte
ug/m3
ug/m3
ug/m3
1,1,1-Trichloroethane
71-55-6
133
0.400
1.09
U
1 WG1995894
1,1,2-Trichloroethane
79-00-5
133
0.422
1.09
U
1 WG1995894
Trichloroethylene
79-01-6
131
0.364
1.07
U
1 WG1995894
1,2,4-Trimethylbenzene
95-63-6
120
0.375
0.982
1.28
1 WG1995894
1,3,5-Trimethyl benzene
108-67-8
120
0.382
0.982
0.486
J 1 WG1995894
2,2,4-Trimethyl pentane
540-84-1
114.22
0.621
0.934
U
1 WG1995894
Vinyl chloride
75-01-4
62.50
0.243
0.511
U
1 WG1995894
Vinyl Bromide
593-60-2
106.95
0.373
0.875
U
1 WG1995894
Vinyl acetate
108-05-4
86.10
0.408
0.704
U
1 WG1995894
m&p-Xylene
1330-20-7
106
0.585
1.73
7.20
1 WG1995894
o-Xylene
95-47-6
106
0.359
0.867
2.68
1 WG1995894
(S)
1,4 -Bromof/uorobenzene
460-00-4
175
98.0
60.0-140 WG1995894
FP1
FTc
FSS
4
Cn
Rc
F
FAI
FSC
ACCOUNT:
ECS Southeast LLP - Asheville NC
PROJECT: SDG: DATE/TIME: PAGE:
49:13699-F L1579059 07/11/23 11:19 10 of 38

SG-1 SAMPLE RESULTS - 10
Collected date/time: 01/23/23 14,35 L1579059
Volatile Organic Compounds (MS) by Method TO-15
CAS #
Mol. Wt.
MDL
RDL
Result
Qualifier Dilution
Batch
u
Analyte
ug/m3
ug/m3
ug/m3
Acetone
67-64-1
58.10
1.39
2.97
9.98
1
WG1998041
FTc
Allyl chloride
107-05-1
76.53
0.357
0.626
U
1
WG1998041
Benzene
71-43-2
78.10
0.228
0.639
U
1
WG1998041
F
Benzyl Chloride
100-44-7
127
0.311
1.04
U
1
WG1998041
Bromodichloromethane
75-27-4
164
0.471
1.34
U
1
WG1998041
Bromoform
75-25-2
253
0.757
6.21
U
1
WG1998041
rCn
Bromomethane
74-83-9
94.90
0.381
0.776
U
1
WG1998041
1,3-Butadiene
106-99-0
54.10
0.230
4.43
U
1
WG1998041
Carbon disulfide
75-15-0
76.10
0.317
0.622
U
1
WG1998041
Carbon tetrachloride
56-23-5
154
0.461
1.26
U
1
WG1998041
Chlorobenzene
108-90-7
113
0.385
0.924
U
1
WG1998041
Rc
Chloroethane
75-00-3
64.50
0.263
0.528
U
1
WG1998041
Chloroform
67-66-3
119
0.349
0.973
U
1
WG1998041
Fq
Chloromethane
74-87-3
50.50
0.213
0.413
U
1
WG1998041
2-Chlorotoluene
95-49-8
126
0.427
1.03
U
1
WG1998041
Cyclohexane
110-82-7
84.20
0.259
0.689
U
1
WG1998041
FAI
Dibromochloromethane
124-48-1
208
0.618
1.70
U
1
WG1998041
1,2-Dibromoethane
106-93-4
188
0.554
1.54
U
1
WG1998041
F
1,2-Dichlorobenzene
95-50-1
147
0.770
1.20
U
1
WG1998041
1,3-Dichlorobenzene
541-73-1
147
1.09
1.20
U
1
WG1998041
1,4-Dichlorobenzene
106-46-7
147
0.335
1.20
U
1
WG1998041
1,2-Dichloroethane
107-06-2
99
0.283
0.810
U
1
WG1998041
1,1-Dichloroethane
75-34-3
98
0.290
0.802
U
1
WG1998041
1,1-Dichloroethene
75-35-4
96.90
0.302
0.793
U
1
WG1998041
cis-1,2-Dichloroethene
156-59-2
96.90
0.311
0.793
U
1
WG1998041
trans-1,2-Dichloroethene
156-60-5
96.90
0.267
0.793
U
1
WG1998041
1,2-Dichloropropane
78-87-5
113
0.351
0.924
U
1
WG1998041
cis-1,3-Dichloropropene
10061-01-5
111
0.313
0.908
U
1
WG1998041
trans-1,3-Dichloropropene
10061-02-6
111
0.331
0.908
U
1
WG1998041
1,4-Dioxane
123-91-1
88.10
0.300
0.721
U
1
WG1998041
Ethanol
64-17-5
46.10
0.500
2.36
18.3
1
WG1998041
Ethylbenzene
100-41-4
106
0.362
0.867
U
1
WG1998041
4-Ethyltoluene
622-96-8
120
0.384
0.982
U
1
WG1998041
Trichlorofluoromethane
75-69-4
137.40
0.460
1.12
0.815
J 1
WG1998041
Dichlorodifluoromethane
75-71-8
120.92
0.678
0.989
1.16
1
WG1998041
1,1,2-Trichlorotrifluoroethane
76-13-1
187.40
0.608
1.53
U
1
WG1998041
1,2-Dichlorotetrafluoroethane
76-14-2
171
0.622
1.40
U
1
WG1998041
Heptane
142-82-5
100
0.425
0.818
0.765
J 1
WG1998041
Hexachloro-1,3-butadiene
87-68-3
261
1.12
6.73
U
1
WG1998041
n-Hexane
110-54-3
86.20
0.726
2.22
U
1
WG1998041
Isopropylbenzene
98-82-8
120.20
0.382
0.983
U
1
WG1998041
Methylene Chloride
75-09-2
84.90
0.340
0.694
0.472
J 1
WG1998041
Methyl Butyl Ketone
591-78-6
100
0.544
5.11
U
1
WG1998041
2-Butanone (MEK)
78-93-3
72.10
0.240
3.69
0.793
J 1
WG1998041
4-Methyl-2-pentanone (MIBK)
108-10-1
100.10
0.313
5.12
U
1
WG1998041
Methyl methacrylate
80-62-6
100.12
0.359
0.819
U
1
WG1998041
MTBE
1634-04-4
88.10
0.233
0.721
U
1
WG1998041
Naphthalene
91-20-3
128
1.83
3.30
U
1
WG1998041
2-Propanol
67-63-0
60.10
0.649
3.07
1.64
J 1
WG1998041
Propene
115-07-1
42.10
0.160
2.15
U
1
WG1998041
Styrene
100-42-5
104
0.335
0.851
U
1
WG1998041
1,1,2,2-Tetrachloroethane
79-34-5
168
0.511
1.37
U
1
WG1998041
Tetrachloroethylene
127-18-4
166
0.553
1.36
U
1
WG1998041
Tetrahydrofuran
109-99-9
72.10
0.216
0.590
U
1
WG1998041
Toluene
108-88-3
92.10
0.328
1.88
1.64
J 1
WG1998041
1,2,4-Trichlorobenzene
120-82-1
181
1.10
4.66
U
1
WG1998041
ACCOUNT:
PROJECT:
SDG:
DATE/TIME:
PAGE:
ECS Southeast
LLP - Asheville
NC
49:13699-F
L1579059
07/11/23 11:19
11 of 38

SG-1 SAMPLE RESULTS - 10
Collected date/time: 01/23/23 14:35 L1579059
Volatile Organic Compounds (MS) by Method TO-15
CAS #
Mol. Wt.
MDL
RDL
Result
Qualifier Dilution Batch
Analyte
ug/m3
ug/m3
ug/m3
1,1,1-Trichloroethane
71-55-6
133
0.400
1.09
U
1 WG1998041
1,1,2-Trichloroethane
79-00-5
133
0.422
1.09
U
1 WG1998041
Trichloroethylene
79-01-6
131
0.364
1.07
U
1 WG1998041
1,2,4-Trimethylbenzene
95-63-6
120
0.375
0.982
U
1 WG1998041
1,3,5-Trimethyl benzene
108-67-8
120
0.382
0.982
U
1 WG1998041
2,2,4-Trimethyl pentane
540-84-1
114.22
0.621
0.934
0.920
J_ 1 WG1998041
Vinyl chloride
75-01-4
62.50
0.243
0.511
U
1 WG1998041
Vinyl Bromide
593-60-2
106.95
0.373
0.875
U
1 WG1998041
Vinyl acetate
108-05-4
86.10
0.408
0.704
U
1 WG1998041
m&p-Xylene
1330-20-7
106
0.585
1.73
U
1 WG1998041
o-Xylene
95-47-6
106
0.359
0.867
U
1 WG1998041
(S)
1,4 -Bromof/uorobenzene
460-00-4
175
97.8
60.0-140 WG1998041
FP1
FTc
FSS
4
Cn
Rc
F
FAI
FSC
ACCOUNT:
ECS Southeast LLP - Asheville NC
PROJECT: SDG: DATE/TIME: PAGE:
49:13699-F L1579059 07/11/23 11:19 12 of 38

SG-8 SAMPLE RESULTS
Collected date/time: 01/23/23 16:27 L1579059
Volatile Organic Compounds (MS) by Method TO-15
CAS #
Mol. Wt.
MDL
RDL
Result
Qualifier Dilution
Batch
u
Analyte
ug/m3
ug/m3
ug/m3
Acetone
67-64-1
58.10
1.39
2.97
6.06
1
WG1996347
FTc
Allyl chloride
107-05-1
76.53
0.357
0.626
U
1
WG1996347
Benzene
71-43-2
78.10
0.228
0.639
4.98
1
WG1996347
F
Benzyl Chloride
100-44-7
127
0.311
1.04
U
1
WG1996347
Bromodichloromethane
75-27-4
164
0.471
1.34
U
1
WG1996347
Bromoform
75-25-2
253
0.757
6.21
U
1
WG1996347
rCn
Bromomethane
74-83-9
94.90
0.381
0.776
U
1
WG1996347
1,3-Butadiene
106-99-0
54.10
0.230
4.43
4.00
J 1
WG1996347
Carbon disulfide
75-15-0
76.10
0.317
0.622
0.520
J 1
WG1996347
Carbon tetrachloride
56-23-5
154
0.461
1.26
U
1
WG1996347
Chlorobenzene
108-90-7
113
0.385
0.924
U
1
WG1996347
Rc
Chloroethane
75-00-3
64.50
0.263
0.528
U
1
WG1996347
Chloroform
67-66-3
119
0.349
0.973
U
1
WG1996347
F
q
Chloromethane
74-87-3
50.50
0.213
0.413
U
1
WG1996347
2-Chlorotoluene
95-49-8
126
0.427
1.03
U
1
WG1996347
Cyclohexane
110-82-7
84.20
0.259
0.689
0.300
J 1
WG1996347
FAI
Dibromochloromethane
124-48-1
208
0.618
1.70
U
1
WG1996347
1,2-Dibromoethane
106-93-4
188
0.554
1.54
U
1
WG1996347
F
1,2-Dichlorobenzene
95-50-1
147
0.770
1.20
U
1
WG1996347
1,3-Dichlorobenzene
541-73-1
147
1.09
1.20
U
1
WG1996347
1,4-Dichlorobenzene
106-46-7
147
0.335
1.20
U
1
WG1996347
1,2-Dichloroethane
107-06-2
99
0.283
0.810
U
1
WG1996347
1,1-Dichloroethane
75-34-3
98
0.290
0.802
U
1
WG1996347
1,1-Dichloroethene
75-35-4
96.90
0.302
0.793
U
1
WG1996347
cis-1,2-Dichloroethene
156-59-2
96.90
0.311
0.793
U
1
WG1996347
trans-1,2-Dichloroethene
156-60-5
96.90
0.267
0.793
U
1
WG1996347
1,2-Dichloropropane
78-87-5
113
0.351
0.924
U
1
WG1996347
cis-1,3-Dichloropropene
10061-01-5
111
0.313
0.908
U
1
WG1996347
trans-1,3-Dichloropropene
10061-02-6
111
0.331
0.908
U
1
WG1996347
1,4-Dioxane
123-91-1
88.10
0.300
0.721
U
1
WG1996347
Ethanol
64-17-5
46.10
0.500
2.36
49.0
1
WG1996347
Ethylbenzene
100-41-4
106
0.362
0.867
0.702
J 1
WG1996347
4-Ethyltoluene
622-96-8
120
0.384
0.982
0.594
J 1
WG1996347
Trichlorofluoromethane
75-69-4
137.40
0.460
1.12
1.21
1
WG1996347
Dichlorodifluoromethane
75-71-8
120.92
0.678
0.989
5.00
1
WG1996347
1,1,2-Trichlorotrifluoroethane
76-13-1
187.40
0.608
1.53
U
1
WG1996347
1,2-Dichlorotetrafluoroethane
76-14-2
171
0.622
1.40
U
1
WG1996347
Heptane
142-82-5
100
0.425
0.818
1.19
1
WG1996347
Hexachloro-1,3-butadiene
87-68-3
261
1.12
6.73
U
1
WG1996347
n-Hexane
110-54-3
86.20
0.726
2.22
2.24
1
WG1996347
Isopropylbenzene
98-82-8
120.20
0.382
0.983
U
1
WG1996347
Methylene Chloride
75-09-2
84.90
0.340
0.694
0.358
J 1
WG1996347
Methyl Butyl Ketone
591-78-6
100
0.544
5.11
U
1
WG1996347
2-Butanone(MEK)
78-93-3
72.10
0.240
3.69
0.837
J 1
WG1996347
4-Methyl-2-pentanone (MIBK)
108-10-1
100.10
0.313
5.12
U
1
WG1996347
Methyl methacrylate
80-62-6
100.12
0.359
0.819
U
1
WG1996347
MTBE
1634-04-4
88.10
0.233
0.721
U
1
WG1996347
Naphthalene
91-20-3
128
1.83
3.30
U
1
WG1996347
2-Propanol
67-63-0
60.10
0.649
3.07
3.52
1
WG1996347
Propene
115-07-1
42.10
0.160
2.15
22.6
1
WG1996347
Styrene
100-42-5
104
0.335
0.851
U
1
WG1996347
1,1,2,2-Tetrachloroethane
79-34-5
168
0.511
1.37
U
1
WG1996347
Tetrachloroethylene
127-18-4
166
0.553
1.36
2.29
1
WG1996347
Tetrahydrofuran
109-99-9
72.10
0.216
0.590
U
1
WG1996347
Toluene
108-88-3
92.10
0.328
1.88
5.05
1
WG1996347
1,2,4-Trichlorobenzene
120-82-1
181
1.10
4.66
U
1
WG1996347
ACCOUNT:
PROJECT:
SDG:
DATE/TIME:
PAGE:
ECS Southeast
LLP - Asheville
NC
49:13699-F
L1579059
07/11/23 11:19
13 of 38

SG-8 SAMPLE RESULTS - 11
Collected date/time: 01/23/23 16:27 L1579059
Volatile Organic Compounds (MS) by Method TO-15
CAS #
Mol. Wt.
MDL
RDL
Result
Qualifier Dilution Batch
Analyte
ug/m3
ug/m3
ug/m3
1,1,1-Trichloroethane
71-55-6
133
0.400
1.09
U
1 WG1996347
1,1,2-Trichloroethane
79-00-5
133
0.422
1.09
U
1 WG1996347
Trichloroethylene
79-01-6
131
0.364
1.07
U
1 WG1996347
1,2,4-Trimethylbenzene
95-63-6
120
0.375
0.982
0.422
J 1 WG1996347
1,3,5-Trimethyl benzene
108-67-8
120
0.382
0.982
U
1 WG1996347
2,2,4-Trimethyl pentane
540-84-1
114.22
0.621
0.934
1.83
1 WG1996347
Vinyl chloride
75-01-4
62.50
0.243
0.511
U
1 WG1996347
Vinyl Bromide
593-60-2
106.95
0.373
0.875
U
1 WG1996347
Vinyl acetate
108-05-4
86.10
0.408
0.704
U
1 WG1996347
m&p-Xylene
1330-20-7
106
0.585
1.73
2.29
1 WG1996347
o-Xylene
95-47-6
106
0.359
0.867
0.767
J 1 WG1996347
(S)
1,4 -Bromof/uorobenzene
460-00-4
175
103
60.0-140 WG1996347
FP1
FTc
FSS
4
Cn
Rc
F
FAI
FSC
ACCOUNT:
ECS Southeast LLP - Asheville NC
PROJECT: SDG: DATE/TIME: PAGE:
49:13699-F L1579059 07/11/23 11:19 14 of 38

WG1995213
Volatile Organic Compounds (MS) by Method TO-15
QUALITY CONTROL SUMMARY
L1579059-01
Method Blank (MB)
(MB) R3884766-3 01/26/2310:11
MB Result
Analyte
ug/m3
Acetone
U
Allyl chloride
U
Benzene
U
Benzyl Chloride
U
Bromodichloromethane
U
Bromoform
U
Bromomethane
U
1,3-Butadiene
U
Carbon disulfide
U
Carbon tetrachloride
U
Chlorobenzene
U
Chloroethane
U
Chloroform
U
Chloromethane
U
2-Chlorotoluene
U
Cyclohexane
U
Dibromochloromethane
U
1,2-Dibromoethane
U
1,2-Dichlorobenzene
U
1,3-Dichlorobenzene
U
1,4-Dichlorobenzene
U
1,2-Dichloroethane
U
1,1-Dichloroethane
U
1,1-Dichloroethene
U
cis-1,2-Dichloroethene
U
trans-1,2-Dichloroethene
U
1,2-Dichloropropane
U
cis-1,3-Dichloropropene
U
trans-1,3-Dichloropropene
U
1,4-Dioxane
U
Ethanol
U
Ethylbenzene
U
4-Ethyltoluene
U
Trichlorofluoromethane
U
Dichlorodifluoromethane
U
1,1,2-Trichlorotrifluoroethane
U
1,2-Dichlorotetrafluoroethane
U
Heptane
U
Hexachloro-1,3-butadiene
U
n-Hexane
U
MB Qualifier MB MDL
ug/m3
1.39
0.357
0.228
0.311
0.471
0.757
0.381
0.230
0.317
0.461
0.385
0.263
0.349
0.213
0.427
0.259
0.618
0.554
0.770
1.09
0.335
0.283
0.290
0.302
0.311
0.267
0.351
0.313
0.331
0.300
0.500
0.362
0.384
0.460
0.678
0.608
0.622
0.425
1.12
0.726
MB RDL
ug/m3
2.97
0.626
0.639
1.04
1.34
6.21
0.776
4.43
0.622
1.26
0.924
0.528
0.973
0.413
1.03
0.689
1.70
1.54
1.20
1.20
1.20
0.810
0.802
0.793
0.793
0.793
0.924
0.908
0.908
0.721
2.36
0.867
0.982
1.12
0.989
1.53
1.40
0.818
6.73
2.22
FP1
FC
FSS
4
Cn
FSr
�GI
FAI
FSC
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
ECS Southeast LLP - Asheville NC 49:13699-F L1579059 07/11/23 11:19 15 of 38

WG1995213
Volatile Organic Compounds (MS) by Method TO-15
QUALITY CONTROL SUMMARY
L1579059-01
Method Blank (MB)
(MB) R3884766-3 01/26/2310:11
MB Result
MB Qualifier MB MDL
MB RDL
Analyte
ug/m3
ug/m3
ug/m3
Isopropylbenzene
U
0.382
0.983
Methylene Chloride
U
0.340
0.694
Methyl Butyl Ketone
U
0.544
5.11
2-Butanone (MEK)
U
0.240
3.69
4-Methyl-2-pentanone (MIBK)
U
0.313
5.12
Methyl methacrylate
U
0.359
0.819
MTBE
U
0.233
0.721
Naphthalene
U
1.83
3.30
Styrene
U
0.335
0.851
1,1,2,2-Tetrachloroethane
U
0.511
1.37
Tetrachloroethylene
U
0.553
1.36
Tetrahydrofuran
U
0.216
0.590
Toluene
U
0.328
1.88
1,2,4-Trichlorobenzene
U
1.10
4.66
1,1,1-Trichloroethane
U
0.400
1.09
1,1,2-Trichloroethane
U
0.422
1.09
Trichloroethylene
U
0.364
1.07
1,2,4-Trimethylbenzene
U
0.375
0.982
1,3,5-Trimethyl benzene
U
0.382
0.982
Vinyl chloride
U
0.243
0.511
Vinyl Bromide
U
0.373
0.875
Vinyl acetate
U
0.408
0.704
m&p-Xylene
U
0.585
1.73
o-Xylene
U
0.359
0.867
(S)1,4-Bromof/uorobenzene
98.8
60.0-140
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R3884766-1 01/26/23 08:52 • (LCSD) R3884766-2 01/26/23 09:32
Spike Amount
LCS Result
LCSD Result
LCS Rec.
LCSD Rec.
Rec. Limits
LCS Qualifier LCSD Qualifier RPD
RPD Limits
Analyte
ug/m3
ug/m3
ug/m3
%
%
%
%
%
Acetone
8.91
10.1
10.1
113
113
70.0-130
0.236
25
Allyl Chloride
11.7
14.6
14.6
124
124
70.0-130
0.215
25
Benzene
12.0
14.5
14.4
121
120
70.0-130
0.883
25
Benzyl Chloride
19.5
24.5
24.7
126
127
70.0-152
1.06
25
Bromodichloromethane
25.2
29.8
29.8
119
118
70.0-130
0.225
25
Bromoform
38.8
45.4
45.5
117
117
70.0-130
0.228
25
Bromomethane
14.6
16.2
16.2
111
111
70.0-130
0.000
25
1,3-Butadiene
8.30
10.1
9.67
122
117
70.0-130
4.26
25
FP1
FC
FSS
4
Cn
FSr
�GI
FAI
FSC
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
ECS Southeast LLP - Asheville NC 49:13699-F L1579059 07/11/23 11:19 16 of 38

WG1995213 QUALITY CONTROL SUMMARY
Volatile Organic Compounds (MS) by Method TO-15 L1579059-01
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R3884766-1 01/26/23 08:52 • (LCSD) R3884766-2 01/26/23 09:32
Spike Amount
LCS Result
LCSD Result
LCS Rec.
Analyte
ug/m3
ug/m3
ug/m3
%
Carbon disulfide
11.7
14.3
14.1
122
Carbon tetrachloride
23.6
28.0
28.0
118
Chlorobenzene
17.3
20.1
20.0
116
Chloroethane
9.89
11.5
11.3
116
Chloroform
18.3
22.0
21.5
120
Chloromethane
7.75
9.21
8.98
119
2-Chlorotoluene
19.3
23.5
23.2
122
Cyclohexane
12.9
16.5
16.0
127
Dibromochloromethane
31.9
37.6
37.5
118
1,2-Dibromoethane
28.8
34.5
34.1
120
1,2-Dichlorobenzene
22.5
26.6
26.6
118
1,3-Dichlorobenzene
22.5
26.7
26.8
118
1,4-Dichlorobenzene
22.5
27.1
26.9
120
1,2-Dichloroethane
15.2
17.7
17.7
117
1,1-Dichloroethane
15.0
18.3
18.0
122
1,1-Dichloroethene
14.9
18.2
17.8
122
cis-1,2-Dichloroethene
14.9
18.1
17.8
122
trans-1,2-Dichloroethene
14.9
18.3
18.0
123
1,2-Dichloropropane
17.3
20.7
20.6
119
cis-1,3-Dichloropropene
17.0
20.6
20.3
121
trans-1,3-Dichloropropene
17.0
21.0
20.8
123
1,4-Dioxane
13.5
16.2
16.6
120
Ethanol
7.07
8.50
8.37
120
Ethylbenzene
16.3
19.6
19.9
121
4-Ethyltoluene
18.4
23.1
22.7
125
Trichlorofluoromethane
21.1
24.7
24.6
117
Dichlorodifluoromethane
18.5
20.1
20.2
108
1,1,2-Trichlorotrifluoroethane
28.7
34.0
33.6
118
1,2-Dichlorotetrafluoroethane
26.2
32.4
32.0
123
Heptane
15.3
19.6
19.7
128
Hexachloro-1,3-butadiene
40.0
46.0
46.0
115
n-Hexane
13.2
16.9
16.5
128
Isopropylbenzene
18.4
23.2
23.3
126
Methylene Chloride
13.0
15.4
15.1
118
Methyl Butyl Ketone
15.3
19.1
18.8
125
Methyl Ethyl Ketone
11.1
13.8
13.4
125
4-Methyl-2-pentanone (MIBK)
15.4
19.0
18.9
124
Methyl Methacrylate
15.4
19.1
18.9
124
MTBE
13.5
17.4
17.0
129
Naphthalene
19.6
24.5
24.6
125
ACCOUNT:
ECS Southeast LLP - Asheville NC
LCSD Rec.
Rec. Limits
LCS Qualifier LCSD Qualifier RPD
RPD Limits
121
70.0-130
1.10
25
118
70.0-130
0.000
25
115
70.0-130
0.231
25
114
70.0-130
1.85
25
118
70.0-130
2.24
25
116
70.0-130
2.50
25
120
70.0-130
1.10
25
124
70.0-130
2.54
25
118
70.0-130
0.227
25
118
70.0-130
1.35
25
118
70.0-130
0.226
25
119
70.0-130
0.449
25
119
70.0-130
0.669
25
117
70.0-130
0.229
25
120
70.0-130
1.55
25
120
70.0-130
1.98
25
120
70.0-130
1.55
25
121
70.0-130
1.75
25
119
70.0-130
0.448
25
119
70.0-130
1.33
25
122
70.0-130
1.09
25
123
70.0-140
2.63
25
118
55.0-148
1.56
25
122
70.0-130
1.10
25
123
70.0-130
1.50
25
117
70.0-130
0.684
25
109
64.0-139
0.491
25
117
70.0-130
0.907
25
122
70.0-130
1.09
25
129
70.0-130
0.624
25
115
70.0-151
0.000
25
125
70.0-130
2.32
25
126
70.0-130
0.212
25
116
70.0-130
1.82
25
123
70.0-149
1.51
25
121
70.0-130
3.47
25
123
70.0-139
0.649
25
123
70.0-130
0.862
25
126
70.0-130
2.30
25
125
70.0-159
0.213
25
PROJECT:
SDG:
DATE/TIME: PAGE:
49:13699-F
L1579059
07/11/23 11:19 17 of 38
FP1
FC
FSS
4
Cn
FSr
�GI
FAI
FSC

WG1995213 QUALITY CONTROL SUMMARY
Volatile Organic Compounds (MS) by Method TO-15 L1579059-01
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R3884766-1 01/26/23 08:52 • (LCSD) R3884766-2 01/26/23 09:32
Spike Amount
LCS Result
LCSD Result
LCS Rec.
Analyte
ug/m3
ug/m3
ug/m3
%
Styrene
16.0
20.4
20.2
128
1,1,2,2-Tetrachloroethane
25.8
30.3
30.2
118
Tetrachloroethylene
25.5
29.4
29.2
115
Tetrahydrofuran
11.1
13.7
13.4
123
Toluene
14.1
17.5
17.2
124
1,2,4-Trichlorobenzene
27.8
32.6
32.4
117
1,1,1-Trichloroethane
20.4
24.6
24.1
121
1,1,2-Trichloroethane
20.4
24.0
24.0
118
Trichloroethylene
20.1
23.6
23.7
117
1,2,4-Trimethylbenzene
18.4
23.3
23.2
126
1,3,5-Trimethyl benzene
18.4
22.4
22.6
122
Vinyl chloride
9.59
11.7
11.5
122
Vinyl Bromide
16.4
19.3
19.3
118
Vinyl acetate
13.2
10.9
10.8
82.4
m&p-Xylene
32.5
40.4
40.4
124
o-Xylene
16.3
20.1
20.2
124
(S)1,4-Bromof/uorobenzene
99.6
LCSD Rec.
Rec. Limits
LCS Qualifier LCSD Qualifier RPD
127
70.0-130
0.839
117
70.0-130
0.227
115
70.0-130
0.695
121
70.0-137
1.74
122
70.0-130
1.52
117
70.0-160
0.456
118
70.0-130
2.01
118
70.0-130
0.000
118
70.0-130
0.679
126
70.0-130
0.423
123
70.0-130
0.654
120
70.0-130
1.54
118
70.0-130
0.000
81.9
70.0-130
0.649
124
70.0-130
0.000
124
70.0-130
0.430
99.7
60.0-140
RPD Limits
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
FP1
FC
FSS
4
Cn
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FSC
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
ECS Southeast LLP - Asheville NC 49:13699-F L1579059 07/11/23 11:19 18 of 38

WG1995894
Volatile Organic Compounds (MS) by Method TO-15
QUALITY CONTROL SUMMARY
L1579059-02,09
Method Blank (MB)
(MB) R3885150-3 01/27/23 09:31
MB Result
Analyte
ug/m3
Acetone
U
Allyl Chloride
U
Benzene
U
Benzyl Chloride
U
Bromodichloromethane
U
Bromoform
U
Bromomethane
U
1,3-Butadiene
U
Carbon disulfide
U
Carbon tetrachloride
U
Chlorobenzene
U
Chloroethane
U
Chloroform
U
Chloromethane
U
2-Chlorotoluene
U
Cyclohexane
U
Dibromochloromethane
U
1,2-Dibromoethane
U
1,2-Dichlorobenzene
U
1,3-Dichlorobenzene
U
1,4-Dichlorobenzene
U
1,2-Dichloroethane
U
1,1-Dichloroethane
U
1,1-Dichloroethene
U
cis-1,2-Dichloroethene
U
trans-1,2-Dichloroethene
U
1,2-Dichloropropane
U
cis-1,3-Dichloropropene
U
trans-1,3-Dichloropropene
U
1,4-Dioxane
U
Ethanol
U
Ethylbenzene
U
4-Ethyltoluene
U
Trichlorofluoromethane
U
Dichlorodifluoromethane
U
1,1,2-Trichlorotrifluoroethane
U
1,2-Dichlorotetrafluoroethane
U
Heptane
U
Hexachloro-1,3-butadiene
U
n-Hexane
U
MB Qualifier
MB MDL
ug/m3
1.39
0.357
0.228
0.311
0.471
0.757
0.381
0.230
0.317
0.461
0.385
0.263
0.349
0.213
0.427
0.259
0.618
0.554
0.770
1.09
0.335
0.283
0.290
0.302
0.311
0.267
0.351
0.313
0.331
0.300
0.500
0.362
0.384
0.460
0.678
0.608
0.622
0.425
1.12
0.726
MB RDL
ug/m3
2.97
0.626
0.639
1.04
1.34
6.21
0.776
4.43
0.622
1.26
0.924
0.528
0.973
0.413
1.03
0.689
1.70
1.54
1.20
1.20
1.20
0.810
0.802
0.793
0.793
0.793
0.924
0.908
0.908
0.721
2.36
0.867
0.982
1.12
0.989
1.53
1.40
0.818
6.73
2.22
FP1
FC
FSS
4
Cn
FSr
�GI
FAI
FSC
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
ECS Southeast LLP - Asheville NC 49:13699-F L1579059 07/11/23 11:19 19 of 38

WG1995894
Volatile Organic Compounds (MS) by Method TO-15
QUALITY CONTROL SUMMARY
L1579059-02,09
Method Blank (MB)
(MB) R3885150-3 01/27/23 09:31
MB Result
Analyte ug/m3
Isopropylbenzene
Methylene Chloride
Methyl Butyl Ketone
2-Butanone (MEK)
4-Methyl-2-pentanone (MIBK)
Methyl Methacrylate
MTBE
Naphthalene
2-Propanol
Propene
Styrene
1,1,2,2-Tetrachloroetha ne
Tetrachloroethylene
Tetrahydrofuran
Toluene
1,2,4-Trichlorobenzene
1,1,1-T ri c h l o ro eth a n e
1,1,2-Trich I oroetha n e
Trichloroethylene
1,2,4-Tri methyl ben zen e
1,3,5-Trimethyl benzene
2, 2, 4-Tri m ethyl pe nta n e
Vinyl chloride
Vinyl Bromide
Vinyl acetate
m&p-Xylene
o-Xylene
(S)1,4-Bromof/uorobenzene
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
96.7
MB Qualifier MB MDL
ua/m3
V.jbZ
0.340
0.544
0.240
0.313
0.359
0.233
1.83
0.649
0.160
0.335
0.511
0.553
0.216
0.328
1.10
0.400
0.422
0.364
0.375
0.382
0.621
0.243
0.373
0.408
0.585
0.359
MB RDL
ug/m3
0.983
0.694
5.11
3.69
5.12
0.819
0.721
3.30
3.07
2.15
0.851
1.37
1.36
0.590
1.88
4.66
1.09
1.09
1.07
0.982
0.982
0.934
0.511
0.875
0.704
1.73
0.867
60.0-140
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R3885150-1 01/27/23 08:33 • (LCSD) R3885150-2 01/27/23 09:03
Spike Amount
LCS Result
LCSD Result
LCS Rec.
Analyte
ug/m3
ug/m3
ug/m3
%
Acetone
8.91
8.96
9.58
101
Allyl Chloride
11.7
12.8
12.8
109
Benzene
12.0
12.7
12.6
106
Benzyl Chloride
19.5
19.4
19.5
99.7
Bromodichloromethane
25.2
27.1
26.6
108
ACCOUNT:
ECS Southeast LLP - Asheville NC
LCSD Rec.
Rec. Limits
LCS Qualifier LCSD Qualifier RPD
RPD Limits
107
70.0-130
6.67
25
109
70.0-130
0.000
25
106
70.0-130
0.252
25
100
70.0-152
0.267
25
106
70.0-130
2.00
25
PROJECT:
SDG:
DATE/TIME: PAGE:
49:13699-F
L1579059
07/11/23 11:19 20 of 38
FP1
FC
FSS
4
Cn
FSr
�GI
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FSC

WG1995894 QUALITY CONTROL SUMMARY
Volatile Organic Compounds (MS) by Method TO-15 1-1579059-02,09
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R3885150-1 01/27/23 08:33 • (LCSD) R3885150-2 01/27/23 09:03
Spike Amount
LCS Result
LCSD Result
LCS Rec.
Analyte
ug/m3
ug/m3
ug/m3
%
Bromoform
38.8
42.6
41.7
110
Bromomethane
14.6
15.3
15.3
105
1,3-Butadiene
8.30
8.96
8.87
108
Carbon disulfide
11.7
12.4
12.1
107
Carbon tetrachloride
23.6
24.6
24.4
104
Chlorobenzene
17.3
18.0
17.9
104
Chloroethane
9.89
10.5
10.5
106
Chloroform
18.3
19.5
19.4
107
Chloromethane
7.75
8.45
8.49
109
2-Chlorotoluene
19.3
21.5
21.9
111
Cyclohexane
12.9
14.1
14.2
109
Dibromochloromethane
31.9
34.5
33.4
108
1,2-Dibromoethane
28.8
30.5
30.1
106
1,2-Dichlorobenzene
22.5
24.6
25.2
109
1,3-Dichlorobenzene
22.5
24.7
25.0
110
1,4-Dichlorobenzene
22.5
25.0
25.4
111
1,2-Dichloroethane
15.2
15.9
15.7
105
1,1-Dichloroethane
15.0
16.2
16.1
108
1,1-Dichloroethene
14.9
15.5
15.4
104
cis-1,2-Dichloroethene
14.9
16.3
16.2
110
trans-1,2-Dichloroethene
14.9
16.2
15.9
109
1,2-Dichloropropane
17.3
18.3
18.2
106
cis-1,3-Dichloropropene
17.0
18.5
18.2
109
trans-1,3-Dichloropropene
17.0
18.2
18.1
107
1,4-Dioxane
13.5
13.7
14.0
101
Ethanol
7.07
7.37
7.49
104
Ethylbenzene
16.3
18.1
18.3
111
4-Ethyltoluene
18.4
21.1
21.3
114
Trichlorofluoromethane
21.1
21.6
21.4
103
Dichlorodifluoromethane
18.5
19.7
19.5
106
1,1,2-Trichlorotrifluoroethane
28.7
29.5
29.1
103
1,2-Dichlorotetrafluoroethane
26.2
28.0
28.1
107
Heptane
15.3
17.3
17.2
113
Hexachloro-1,3-butadiene
40.0
43.6
43.4
109
n-Hexane
13.2
14.8
14.9
112
Isopropylbenzene
18.4
20.3
20.5
110
Methylene Chloride
13.0
13.5
13.5
104
Methyl Butyl Ketone
15.3
16.4
16.7
107
Methyl Ethyl Ketone
11.1
12.0
11.9
109
4-Methyl-2-pentanone (MIBK)
15.4
16.6
16.6
108
ACCOUNT:
ECS Southeast LLP - Asheville NC
LCSD Rec.
Rec. Limits
LCS Qualifier LCSD Qualifier RPD
RPD Limits
107
70.0-130
2.21
25
105
70.0-130
0.508
25
107
70.0-130
0.993
25
104
70.0-130
2.53
25
103
70.0-130
1.03
25
103
70.0-130
0.772
25
106
70.0-130
0.251
25
106
70.0-130
0.501
25
110
70.0-130
0.488
25
113
70.0-130
1.66
25
110
70.0-130
1.22
25
105
70.0-130
3.01
25
105
70.0-130
1.27
25
112
70.0-130
2.42
25
111
70.0-130
1.21
25
113
70.0-130
1.91
25
103
70.0-130
1.03
25
107
70.0-130
0.743
25
104
70.0-130
0.513
25
109
70.0-130
0.976
25
107
70.0-130
1.73
25
105
70.0-130
0.506
25
107
70.0-130
1.49
25
106
70.0-130
0.500
25
103
70.0-140
2.08
25
106
55.0-148
1.52
25
113
70.0-130
1.19
25
116
70.0-130
1.16
25
102
70.0-130
1.04
25
105
64.0-139
1.01
25
101
70.0-130
1.31
25
107
70.0-130
0.249
25
112
70.0-130
0.474
25
109
70.0-151
0.245
25
113
70.0-130
0.475
25
111
70.0-130
0.724
25
104
70.0-130
0.257
25
109
70.0-149
2.22
25
108
70.0-130
0.740
25
108
70.0-139
0.000
25
PROJECT:
SDG:
DATE/TIME: PAGE:
49:13699-F
L1579059
07/11/23 11:19 21 of 38
FP1
FC
FSS
4
Cn
FSr
�GI
FAI
FSC

WG1995894 QUALITY CONTROL SUMMARY
Volatile Organic Compounds (MS) by Method TO-15 1-1579059-02,09
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R3885150-1 01/27/23 08:33 • (LCSD) R3885150-2 01/27/23 09:03
Spike Amount
LCS Result
LCSD Result
LCS Rec.
Analyte
ug/m3
ug/m3
ug/m3
%
Methyl Methacrylate
15.4
16.9
16.8
110
MTBE
13.5
14.3
14.3
106
Naphthalene
19.6
24.0
24.0
122
2-Propanol
9.22
9.41
9.32
102
Propene
6.46
7.09
6.97
110
Styrene
16.0
18.2
18.5
114
1,1,2,2-Tetrachloroethane
25.8
28.3
28.5
110
Tetrachloroethylene
25.5
26.3
26.1
103
Tetrahydrofuran
11.1
12.2
12.3
111
Toluene
14.1
15.3
15.1
108
1,2,4-Trichlorobenzene
27.8
31.5
31.3
113
1,1,1-Trichloroethane
20.4
21.3
21.1
104
1,1,2-Trichloroethane
20.4
21.1
21.0
103
Trichloroethylene
20.1
21.3
21.0
106
1,2,4-Trimethylbenzene
18.4
21.5
21.9
117
1,3,5-Trimethyl benzene
18.4
21.1
21.4
115
2,2,4-Trimethyl pentane
17.5
19.3
19.3
110
Vinyl chloride
9.59
10.3
10.4
107
Vinyl Bromide
16.4
17.1
17.3
104
Vinyl acetate
13.2
12.4
11.7
93.9
m&p-Xylene
32.5
36.9
37.4
114
o-Xylene
16.3
18.6
18.7
115
(S)1,4-Bromofluorobenzene
98.1
LCSD Rec.
Rec. Limits
LCS Qualifier LCSD Qualifier RPD
RPD Limits
109
70.0-130
0.487
25
106
70.0-130
0.252
25
122
70.0-159
0.218
25
101
70.0-139
1.05
25
108
64.0-144
1.71
25
116
70.0-130
1.39
25
111
70.0-130
0.726
25
102
70.0-130
1.04
25
111
70.0-137
0.241
25
107
70.0-130
0.743
25
113
70.0-160
0.472
25
103
70.0-130
1.03
25
103
70.0-130
0.517
25
105
70.0-130
1.52
25
119
70.0-130
1.81
25
117
70.0-130
1.61
25
110
70.0-130
0.242
25
108
70.0-130
0.495
25
105
70.0-130
1.02
25
88.3
70.0-130
6.15
25
115
70.0-130
1.17
25
115
70.0-130
0.232
25
97.9
60.0-140
FP1
FC
FSS
4
Cn
FSr
�GI
FAI
FSC
ACCOUNT:
ECS Southeast LLP - Asheville NC
PROJECT: SDG: DATE/TIME: PAGE:
49:13699-F L1579059 07/11/23 11:19 22 of 38

WG1995918
Volatile Organic Compounds (MS) by Method TO-15
Method Blank (MB)
(MB) R3885332-3 01/27/23 09:39
MB Result MB Qualifier MB MDL
Analyte
ug/m3 ug/m3
2-Propanol
U 0.649
Propene
U 0.160
(S)1,4-Bromof/uorobenzene
96.5
QUALITY CONTROL SUMMARY
L1579059-01
MB RDL
ug/m3
3.07
2.15
60.0-140
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R3885332-1 01/27/23 08:36 • (LCSD) R3885332-2 01/27/23 09:09
Spike Amount LCS Result LCSD Result LCS Rec.
Analyte ug/m3 ug/m3 ug/m3 %
2-Propanol 9.22 10.2 10.2 111
Propene 6.46 6.84 6.96 106
(S)1,4-Bromof/uorobenzene 103
LCSD Rec. Rec. Limits LCS Qualifier LCSD Qualifier RPD
110 70.0-139 0.483
108 64.0-144 1.75
103 60.0-140
RPD Limits
25
25
FP1
FC
FSS
4
Cn
FSr
�GI
FAI
FSC
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
ECS Southeast LLP - Asheville NC 49:13699-F L1579059 07/11/23 11:19 23 of 38

WG1996345
Volatile Organic Compounds (MS) by Method TO-15
Method Blank (MB)
(MB) R3885385-3 01/28/23 08:18
MB Result
Analyte ug/m3
2,2,4-Trimethyl pentane U
(S)1,4-Bromof/uorobenzene 95.6
QUALITY CONTROL SUMMARY
L1579059-01
MB Qualifier MB MDL
MB RDL
ug/m3
ug/m3
0.621
0.934
60.0-140
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R3885385-1 01/28/23 07:15 • (LCSD) R3885385-2 01/28/23 07:48
Spike Amount LCS Result LCSD Result LCS Rec. LCSD Rec. Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits
Analyte ug/m3 ug/m3 ug/m3 % % % % %
2,2,4-Trimethyl pentane 17.5 19.2 19.3 110 110 70.0-130 0.485 25
(S)1,4-Bromof/uorobenzene 105 104 60.0-140
FP1
FC
FSS
4
Cn
FSr
�GI
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FSC
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
ECS Southeast LLP - Asheville NC 49:13699-F L1579059 07/11/23 11:19 24 of 38

WG1996347 QUALITY CONTROL SUMMARY
Volatile Organic Compounds (MS) by Method TO-15 L1579059-11
Method Blank (MB)
(MB) R3886299-3 01/28/23 08:39
MB Result MB Qualifier
MB MDL
MB RDL
Analyte ug/m3
ug/m3
ug/m3
Acetone U
1.39
2.97
Allyl Chloride U
0.357
0.626
Benzene U
0.228
0.639
Benzyl Chloride U
0.311
1.04
Bromodichloromethane U
0.471
1.34
Bromoform U
0.757
6.21
Bromomethane U
0.381
0.776
1,3-Butadiene U
0.230
4.43
Carbon disulfide U
0.317
0.622
Carbon tetrachloride U
0.461
1.26
Chlorobenzene U
0.385
0.924
Chloroethane U
0.263
0.528
Chloroform U
0.349
0.973
Chloromethane U
0.213
0.413
2-Chlorotoluene U
0.427
1.03
Cyclohexane U
0.259
0.689
Dibromochloromethane U
0.618
1.70
1,2-Dibromoethane U
0.554
1.54
1,2-Dichlorobenzene U
0.770
1.20
1,3-Dichlorobenzene U
1.09
1.20
1,4-Dichlorobenzene U
0.335
1.20
1,2-Dichloroethane U
0.283
0.810
1,1-Dichloroethane U
0.290
0.802
1,1-Dichloroethene U
0.302
0.793
cis-1,2-Dichloroethene U
0.311
0.793
trans-1,2-Dichloroethene U
0.267
0.793
1,2-Dichloropropane U
0.351
0.924
cis-1,3-Dichloropropene U
0.313
0.908
trans-1,3-Dichloropropene U
0.331
0.908
1,4-Dioxane U
0.300
0.721
Ethanol U
0.500
2.36
Ethylbenzene U
0.362
0.867
4-Ethyltoluene U
0.384
0.982
Trichlorofluoromethane U
0.460
1.12
Dichlorodifluoromethane U
0.678
0.989
1,1,2-Trichlorotrifluoroethane U
0.608
1.53
1,2-Dichlorotetrafluoroethane U
0.622
1.40
Heptane U
0.425
0.818
Hexachloro-1,3-butadiene U
1.12
6.73
n-Hexane U
0.726
2.22
ACCOUNT:
PROJECT: SDG: DATE/TIME: PAGE:
ECS Southeast LLP - Asheville NC
49:13699-F L1579059 07/11/23 11:19 25 of 38
FP1
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WG1996347
Volatile Organic Compounds (MS) by Method TO-15
QUALITY CONTROL SUMMARY
L1579059-11
Method Blank (MB)
(MB) R3886299-3 01/28/23 08:39
MB Result
Analyte ug/m3
Isopropylbenzene
Methylene Chloride
Methyl Butyl Ketone
2-Butanone (MEK)
4-Methyl-2-pentanone (MIBK)
Methyl Methacrylate
MTBE
Naphthalene
2-Propanol
Propene
Styrene
1,1,2,2-Tetrachloroetha ne
Tetrachloroethylene
Tetrahydrofuran
Toluene
1,2,4-Trichlorobenzene
1,1,1-T ri c h l o ro eth a n e
1,1,2-Trich I oroetha n e
Trichloroethylene
1,2,4-Tri methyl ben zen e
1,3,5-Trimethyl benzene
2, 2, 4-Tri m ethyl pe nta n e
Vinyl chloride
Vinyl Bromide
Vinyl acetate
m&p-Xylene
o-Xylene
(S)1,4-Bromof/uorobenzene
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
102
MB Qualifier MB MDL
ua/m3
V.jbZ
0.340
0.544
0.240
0.313
0.359
0.233
1.83
0.649
0.160
0.335
0.511
0.553
0.216
0.328
1.10
0.400
0.422
0.364
0.375
0.382
0.621
0.243
0.373
0.408
0.585
0.359
MB RDL
ug/m3
0.983
0.694
5.11
3.69
5.12
0.819
0.721
3.30
3.07
2.15
0.851
1.37
1.36
0.590
1.88
4.66
1.09
1.09
1.07
0.982
0.982
0.934
0.511
0.875
0.704
1.73
0.867
60.0-140
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R3886299-1 01/28/23 07:19 • (LCSD) R3886299-2 01/28/23 07:59
Spike Amount
LCS Result
LCSD Result
LCS Rec.
Analyte
ug/m3
ug/m3
ug/m3
%
Acetone
8.91
10.4
10.6
117
Allyl Chloride
11.7
13.1
13.4
112
Benzene
12.0
13.0
13.2
109
Benzyl Chloride
19.5
24.6
25.0
126
Bromodichloromethane
25.2
27.6
27.6
110
ACCOUNT:
ECS Southeast LLP - Asheville NC
LCSD Rec.
Rec. Limits
LCS Qualifier LCSD Qualifier RPD
RPD Limits
119
70.0-130
1.58
25
114
70.0-130
2.13
25
110
70.0-130
1.71
25
128
70.0-152
1.68
25
110
70.0-130
0.243
25
PROJECT:
SDG:
DATE/TIME: PAGE:
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07/11/23 11:19 26 of 38
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WG1996347 QUALITY CONTROL SUMMARY
Volatile Organic Compounds (MS) by Method TO-15 L1579059-11
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R3886299-1 01/28/23 07:19 • (LCSD) R3886299-2 01/28/23 07:59
Spike Amount
LCS Result
LCSD Result
LCS Rec.
Analyte
ug/m3
ug/m3
ug/m3
%
Bromoform
38.8
43.4
43.5
112
Bromomethane
14.6
14.4
14.0
99.2
1,3-Butadiene
8.30
7.41
7.12
89.3
Carbon disulfide
11.7
13.1
13.2
112
Carbon tetrachloride
23.6
26.8
27.3
113
Chlorobenzene
17.3
18.3
18.9
106
Chloroethane
9.89
9.76
9.68
98.7
Chloroform
18.3
20.2
20.7
111
Chloromethane
7.75
8.37
8.32
108
2-Chlorotoluene
19.3
21.0
21.2
109
Cyclohexane
12.9
14.3
14.6
110
Dibromochloromethane
31.9
34.4
35.3
108
1,2-Dibromoethane
28.8
30.8
31.4
107
1,2-Dichlorobenzene
22.5
25.4
25.8
113
1,3-Dichlorobenzene
22.5
25.5
25.7
113
1,4-Dichlorobenzene
22.5
25.5
25.5
113
1,2-Dichloroethane
15.2
16.8
17.0
111
1,1-Dichloroethane
15.0
17.2
17.5
115
1,1-Dichloroethene
14.9
16.9
17.0
114
cis-1,2-Dichloroethene
14.9
16.8
16.8
113
trans-1,2-Dichloroethene
14.9
16.6
16.9
112
1,2-Dichloropropane
17.3
18.8
19.2
109
cis-1,3-Dichloropropene
17.0
18.7
18.8
110
trans-1,3-Dichloropropene
17.0
19.1
18.7
112
1,4-Dioxane
13.5
15.2
15.0
113
Ethanol
7.07
7.96
8.13
113
Ethylbenzene
16.3
18.1
18.4
111
4-Ethyltoluene
18.4
20.7
21.1
113
Trichlorofluoromethane
21.1
20.6
20.7
97.6
Dichlorodifluoromethane
18.5
21.0
21.2
113
1,1,2-Trichlorotrifluoroethane
28.7
32.2
33.0
112
1,2-Dichlorotetrafluoroethane
26.2
29.7
30.0
113
Heptane
15.3
15.7
16.6
102
Hexachloro-1,3-butadiene
40.0
41.8
42.2
105
n-Hexane
13.2
15.2
15.3
115
Isopropylbenzene
18.4
20.6
20.8
112
Methylene Chloride
13.0
14.5
15.1
112
Methyl Butyl Ketone
15.3
19.9
20.0
130
Methyl Ethyl Ketone
11.1
12.6
12.8
114
4-Methyl-2-pentanone (MIBK)
15.4
17.0
17.6
111
ACCOUNT:
ECS Southeast LLP - Asheville NC
LCSD Rec.
Rec. Limits
LCS Qualifier LCSD Qualifier RPD
RPD Limits
112
70.0-130
0.238
25
96.3
70.0-130
3.00
25
85.9
70.0-130
3.96
25
113
70.0-130
0.946
25
116
70.0-130
2.10
25
109
70.0-130
3.22
25
97.9
70.0-130
0.814
25
113
70.0-130
2.38
25
107
70.0-130
0.495
25
110
70.0-130
0.976
25
113
70.0-130
2.62
25
111
70.0-130
2.69
25
109
70.0-130
1.98
25
114
70.0-130
1.65
25
114
70.0-130
0.939
25
113
70.0-130
0.000
25
112
70.0-130
1.44
25
117
70.0-130
1.61
25
114
70.0-130
0.467
25
113
70.0-130
0.472
25
114
70.0-130
1.42
25
111
70.0-130
1.95
25
111
70.0-130
0.483
25
110
70.0-130
1.92
25
111
70.0-140
1.67
25
115
55.0-148
2.11
25
113
70.0-130
1.90
25
115
70.0-130
1.88
25
98.4
70.0-130
0.816
25
114
64.0-139
0.703
25
115
70.0-130
2.35
25
114
70.0-130
0.937
25
109
70.0-130
5.82
25
105
70.0-151
0.762
25
115
70.0-130
0.231
25
113
70.0-130
0.712
25
116
70.0-130
3.98
25
131
70.0-149
0.820
25
115
70.0-130
1.63
25
114
70.0-139
3.32
25
PROJECT:
SDG:
DATE/TIME: PAGE:
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WG1996347 QUALITY CONTROL SUMMARY
Volatile Organic Compounds (MS) by Method TO-15 L1579059-11
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R3886299-1 01/28/23 07:19 • (LCSD) R3886299-2 01/28/23 07:59
Spike Amount
LCS Result
LCSD Result
LCS Rec.
Analyte
ug/m3
ug/m3
ug/m3
%
Methyl Methacrylate
15.4
16.7
17.1
109
MTBE
13.5
15.5
15.8
115
Naphthalene
19.6
24.0
24.2
122
2-Propanol
9.22
10.7
10.9
116
Propene
6.46
7.56
7.58
117
Styrene
16.0
17.7
17.8
111
1,1,2,2-Tetrachloroethane
25.8
29.1
29.0
113
Tetrachloroethylene
25.5
25.3
26.2
99.5
Tetrahydrofuran
11.1
12.1
12.4
110
Toluene
14.1
15.3
15.5
109
1,2,4-Trichlorobenzene
27.8
32.4
32.7
117
1,1,1-Trichloroethane
20.4
22.9
23.2
112
1,1,2-Trichloroethane
20.4
21.9
22.3
107
Trichloroethylene
20.1
21.5
21.8
107
1,2,4-Trimethylbenzene
18.4
20.7
20.8
112
1,3,5-Trimethyl benzene
18.4
20.3
20.1
110
2,2,4-Trimethyl pentane
17.5
19.7
19.9
112
Vinyl chloride
9.59
9.07
8.87
94.7
Vinyl Bromide
16.4
16.2
16.3
98.7
Vinyl acetate
13.2
14.7
14.7
111
m&p-Xylene
32.5
35.8
35.8
110
o-Xylene
16.3
18.0
18.1
111
(S)1,4-Bromofluorobenzene
104
LCSD Rec.
Rec. Limits
LCS Qualifier LCSD Qualifier RPD
RPD Limits
111
70.0-130
2.67
25
117
70.0-130
1.84
25
123
70.0-159
0.870
25
118
70.0-139
2.05
25
117
64.0-144
0.228
25
111
70.0-130
0.480
25
113
70.0-130
0.237
25
103
70.0-130
3.43
25
112
70.0-137
2.40
25
110
70.0-130
1.22
25
118
70.0-160
1.14
25
114
70.0-130
1.42
25
109
70.0-130
1.72
25
109
70.0-130
1.24
25
113
70.0-130
0.710
25
109
70.0-130
0.973
25
114
70.0-130
1.18
25
92.5
70.0-130
2.28
25
99.2
70.0-130
0.539
25
111
70.0-130
0.240
25
110
70.0-130
0.000
25
111
70.0-130
0.720
25
103
60.0-140
FP1
FC
FSS
4
Cn
FSr
�GI
FAI
FSC
ACCOUNT:
ECS Southeast LLP - Asheville NC
PROJECT: SDG: DATE/TIME: PAGE:
49:13699-F L1579059 07/11/23 11:19 28 of 38

WG1998041
Volatile Organic Compounds (MS) by Method TO-15
QUALITY CONTROL SUMMARY
L1579059-10
Method Blank (MB)
(MB) R3886670-3 02/01/2312:17
MB Result
Analyte
ug/m3
Acetone
U
Allyl Chloride
U
Benzene
U
Benzyl Chloride
U
Bromodichloromethane
U
Bromoform
U
Bromomethane
U
1,3-Butadiene
U
Carbon disulfide
U
Carbon tetrachloride
U
Chlorobenzene
U
Chloroethane
U
Chloroform
U
Chloromethane
U
2-Chlorotoluene
U
Cyclohexane
U
Dibromochloromethane
U
1,2-Dibromoethane
U
1,2-Dichlorobenzene
U
1,3-Dichlorobenzene
U
1,4-Dichlorobenzene
U
1,2-Dichloroethane
U
1,1-Dichloroethane
U
1,1-Dichloroethene
U
cis-1,2-Dichloroethene
U
trans-1,2-Dichloroethene
U
1,2-Dichloropropane
U
cis-1,3-Dichloropropene
U
trans-1,3-Dichloropropene
U
1,4-Dioxane
U
Ethanol
U
Ethylbenzene
U
4-Ethyltoluene
U
Trichlorofluoromethane
U
Dichlorodifluoromethane
U
1,1,2-Trichlorotrifluoroethane
U
1,2-Dichlorotetrafluoroethane
U
Heptane
U
Hexachloro-1,3-butadiene
U
n-Hexane
U
MB Qualifier MB MDL
ug/m3
1.39
0.357
0.228
0.311
0.471
0.757
0.381
0.230
0.317
0.461
0.385
0.263
0.349
0.213
0.427
0.259
0.618
0.554
0.770
1.09
0.335
0.283
0.290
0.302
0.311
0.267
0.351
0.313
0.331
0.300
0.500
0.362
0.384
0.460
0.678
0.608
0.622
0.425
1.12
0.726
MB RDL
ug/m3
2.97
0.626
0.639
1.04
1.34
6.21
0.776
4.43
0.622
1.26
0.924
0.528
0.973
0.413
1.03
0.689
1.70
1.54
1.20
1.20
1.20
0.810
0.802
0.793
0.793
0.793
0.924
0.908
0.908
0.721
2.36
0.867
0.982
1.12
0.989
1.53
1.40
0.818
6.73
2.22
FP1
FC
FSS
4
Cn
FSr
�GI
FAI
FSC
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
ECS Southeast LLP - Asheville NC 49:13699-F L1579059 07/11/23 11:19 29 of 38

WG1998041
Volatile Organic Compounds (MS) by Method TO-15
QUALITY CONTROL SUMMARY
L1579059-10
Method Blank (MB)
(MB) R3886670-3 02/01/2312:17
MB Result
Analyte
ug/m3
Isopropylbenzene
U
Methylene Chloride
U
Methyl Butyl Ketone
U
2-Butanone (MEK)
U
4-Methyl-2-pentanone (MIBK)
U
Methyl Methacrylate
U
MTBE
U
Naphthalene
U
2-Propanol
U
Propene
0.257
Styrene
U
1,1,2,2-Tetrachloroethane
U
Tetrachloroethylene
U
Tetrahydrofuran
U
Toluene
U
1,2,4-Trichlorobenzene
U
1,1,1-Trichloroethane
U
1,1,2-Trichloroethane
U
Trichloroethylene
U
1,2,4-Trimethylbenzene
U
1,3,5-Trimethyl benzene
U
2,2,4-Trimethyl pentane
U
Vinyl chloride
U
Vinyl Bromide
U
Vinyl acetate
U
m&p-Xylene
U
o-Xylene
U
(S)1,4-Bromof/uorobenzene
97.4
MB Qualifier MB MDL
ua/m3
J
V.jbZ
0.340
0.544
0.240
0.313
0.359
0.233
1.83
0.649
0.160
0.335
0.511
0.553
0.216
0.328
1.10
0.400
0.422
0.364
0.375
0.382
0.621
0.243
0.373
0.408
0.585
0.359
MB RDL
ug/m3
0.983
0.694
5.11
3.69
5.12
0.819
0.721
3.30
3.07
2.15
0.851
1.37
1.36
0.590
1.88
4.66
1.09
1.09
1.07
0.982
0.982
0.934
0.511
0.875
0.704
1.73
0.867
60.0-140
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R3886670-1 02/01/2310:54 • (LCSD) R3886670-2 02/01/2311:36
Spike Amount
LCS Result
LCSD Result
LCS Rec.
Analyte
ug/m3
ug/m3
ug/m3
%
Acetone
8.91
7.87
8.06
88.3
Allyl Chloride
11.7
10.8
11.5
92.0
Benzene
12.0
11.2
11.4
93.9
Benzyl Chloride
19.5
19.0
18.9
97.3
Bromodichloromethane
25.2
23.5
23.8
93.3
ACCOUNT:
ECS Southeast LLP - Asheville NC
LCSD Rec.
Rec. Limits
LCS Qualifier LCSD Qualifier RPD
RPD Limits
90.4
70.0-130
2.39
25
97.6
70.0-130
5.91
25
94.9
70.0-130
1.13
25
96.8
70.0-152
0.549
25
94.7
70.0-130
1.42
25
PROJECT:
SDG:
DATE/TIME: PAGE:
49:13699-F
L1579059
07/11/23 11:19 30 of 38
FP1
FC
FSS
4
Cn
FSr
�GI
FAI
FSC

WG1998041 QUALITY CONTROL SUMMARY
Volatile Organic Compounds (MS) by Method TO-15 L1579059-10
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R3886670-1 02/01/2310:54 • (LCSD) R3886670-2 02/01/2311:36
Spike Amount
LCS Result
LCSD Result
Analyte
ug/m3
ug/m3
ug/m3
Bromoform
38.8
36.8
37.1
Bromomethane
14.6
15.5
13.1
1,3-Butadiene
8.30
7.41
7.41
Carbon disulfide
11.7
10.8
10.9
Carbon tetrachloride
23.6
22.1
22.4
Chlorobenzene
17.3
16.4
16.6
Chloroethane
9.89
10.8
10.7
Chloroform
18.3
16.8
17.1
Chloromethane
7.75
7.06
7.13
2-Chlorotoluene
19.3
18.0
18.3
Cyclohexane
12.9
12.3
12.4
Dibromochloromethane
31.9
30.5
30.5
1,2-Dibromoethane
28.8
27.5
27.8
1,2-Dichlorobenzene
22.5
20.9
21.3
1,3-Dichlorobenzene
22.5
21.3
21.5
1,4-Dichlorobenzene
22.5
22.1
22.4
1,2-Dichloroethane
15.2
13.8
14.2
1,1-Dichloroethane
15.0
13.9
14.1
1,1-Dichloroethene
14.9
13.8
14.0
cis-1,2-Dichloroethene
14.9
13.7
13.8
trans-1,2-Dichloroethene
14.9
13.7
13.8
1,2-Dichloropropane
17.3
16.1
16.3
cis-1,3-Dichloropropene
17.0
16.0
16.2
trans-1,3-Dichloropropene
17.0
16.1
16.5
1,4-Dioxane
13.5
12.5
12.8
Ethanol
7.07
6.58
6.83
Ethylbenzene
16.3
15.5
15.7
4-Ethyltoluene
18.4
17.1
17.3
Trichlorofluoromethane
21.1
19.7
19.7
Dichlorodifluoromethane
18.5
17.6
17.7
1,1,2-Trichlorotrifluoroethane
28.7
26.8
27.3
1,2-Dichlorotetrafluoroethane
26.2
24.5
24.5
Heptane
15.3
14.2
14.4
Hexachloro-1,3-butadiene
40.0
37.5
37.7
n-Hexane
13.2
12.5
12.6
Isopropylbenzene
18.4
17.2
17.3
Methylene Chloride
13.0
11.7
11.9
Methyl Butyl Ketone
15.3
14.8
15.1
Methyl Ethyl Ketone
11.1
10.8
11.0
4-Methyl-2-pentanone (MIBK)
15.4
14.9
15.2
ACCOUNT:
ECS Southeast LLP - Asheville NC
LCS Rec.
LCSD Rec.
Rec. Limits
LCS Qualifier LCSD Qualifier RPD
RPD Limits
94.9
95.7
70.0-130
0.839
25
107
90.1
70.0-130
16.8
25
89.3
89.3
70.0-130
0.000
25
92.5
93.3
70.0-130
0.861
25
93.6
94.7
70.0-130
1.13
25
94.7
96.0
70.0-130
1.40
25
109
108
70.0-130
0.738
25
92.0
93.9
70.0-130
2.01
25
91.2
92.0
70.0-130
0.873
25
93.1
94.7
70.0-130
1.70
25
95.2
95.7
70.0-130
0.559
25
95.7
95.5
70.0-130
0.279
25
95.5
96.3
70.0-130
0.834
25
92.8
94.7
70.0-130
1.99
25
94.7
95.5
70.0-130
0.842
25
97.9
99.2
70.0-130
1.35
25
91.2
93.6
70.0-130
2.60
25
92.8
93.9
70.0-130
1.14
25
92.8
94.1
70.0-130
1.43
25
92.0
93.1
70.0-130
1.15
25
92.0
93.1
70.0-130
1.15
25
93.1
94.1
70.0-130
1.14
25
94.1
95.2
70.0-130
1.13
25
94.4
96.8
70.0-130
2.51
25
92.8
94.7
70.0-140
1.99
25
93.1
96.5
55.0-148
3.66
25
95.5
96.3
70.0-130
0.834
25
92.8
93.9
70.0-130
1.14
25
93.3
93.6
70.0-130
0.285
25
94.7
95.2
64.0-139
0.562
25
93.3
94.9
70.0-130
1.70
25
93.6
93.3
70.0-130
0.285
25
92.8
94.1
70.0-130
1.43
25
93.6
94.1
70.0-151
0.568
25
94.4
95.2
70.0-130
0.844
25
93.3
93.6
70.0-130
0.285
25
90.1
91.2
70.0-130
1.18
25
96.8
98.7
70.0-149
1.91
25
97.6
99.5
70.0-130
1.89
25
97.3
98.9
70.0-139
1.63
25
PROJECT:
SDG:
DATE/TIME: PAGE:
49:13699-F
L1579059
07/11/23 11:19 31 of 38
FP1
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WG1998041 QUALITY CONTROL SUMMARY
Volatile Organic Compounds (MS) by Method TO-15 L1579059-10
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R3886670-1 02/01/2310:54 • (LCSD) R3886670-2 02/01/2311:36
Spike Amount
LCS Result
LCSD Result
LCS Rec.
Analyte
ug/m3
ug/m3
ug/m3
%
Methyl Methacrylate
15.4
14.9
15.1
96.8
MTBE
13.5
12.6
12.8
93.3
Naphthalene
19.6
19.2
19.1
97.9
2-Propanol
9.22
8.16
8.41
88.5
Propene
6.46
6.10
6.25
94.4
Styrene
16.0
15.2
15.2
95.2
1,1,2,2-Tetrachloroethane
25.8
23.6
23.8
91.5
Tetrachloroethylene
25.5
24.0
24.1
94.1
Tetrahydrofuran
11.1
10.1
10.2
91.5
Toluene
14.1
13.4
13.5
94.9
1,2,4-Trichlorobenzene
27.8
27.2
26.6
98.1
1,1,1-Trichloroethane
20.4
18.9
19.4
92.8
1,1,2-Trichloroethane
20.4
19.4
19.5
94.9
Trichloroethylene
20.1
18.6
18.8
92.8
1,2,4-Trimethylbenzene
18.4
17.1
17.2
92.8
1,3,5-Trimethyl benzene
18.4
17.0
17.3
92.3
2,2,4-Trimethyl pentane
17.5
16.6
16.8
94.7
Vinyl chloride
9.59
9.33
9.25
97.3
Vinyl Bromide
16.4
15.4
15.5
93.6
Vinyl acetate
13.2
11.9
12.1
90.1
m&p-Xylene
32.5
30.5
31.0
93.9
o-Xylene
16.3
15.0
15.2
92.5
(S)1,4-Bromofluorobenzene
97.6
LCSD Rec.
Rec. Limits
LCS Qualifier LCSD Qualifier RPD
RPD Limits
98.4
70.0-130
1.64
25
94.7
70.0-130
1.42
25
97.3
70.0-159
0.546
25
91.2
70.0-139
2.97
25
96.8
64.0-144
2.51
25
95.5
70.0-130
0.280
25
92.5
70.0-130
1.16
25
94.7
70.0-130
0.565
25
92.5
70.0-137
1.16
25
95.5
70.0-130
0.560
25
95.7
70.0-160
2.48
25
95.2
70.0-130
2.55
25
95.7
70.0-130
0.839
25
93.3
70.0-130
0.573
25
93.6
70.0-130
0.858
25
93.9
70.0-130
1.72
25
95.7
70.0-130
1.12
25
96.5
70.0-130
0.825
25
94.4
70.0-130
0.851
25
91.7
70.0-130
1.76
25
95.2
70.0-130
1.41
25
93.6
70.0-130
1.15
25
97.6
60.0-140
FP1
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ACCOUNT:
ECS Southeast LLP - Asheville NC
PROJECT: SDG: DATE/TIME: PAGE:
49:13699-F L1579059 07/11/23 11:19 32 of 38

GLOSSARY OF TERMS
Guide to Reading and Understanding Your Laboratory Report
The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not
intended as a comprehensive explanation, and if you have additional questions please contact your project representative.
Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name,
Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On -Site Data, Sampling Collection Dates/Times, and
Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received.
Abbreviations and Definitions
CP
IP
FTC
FSS
MDL
Method Detection Limit.
RDL
Reported Detection Limit.
rCn
Rec.
Recovery.
RPD
Relative Percent Difference.
FSr
SDG
Sample Delivery Group.
Surrogate (Surrogate Standard) - Analytes added to every blank, sample, Laboratory Control Sample/Duplicate and
(S)
Matrix Spike/Duplicate; used to evaluate analytical efficiency by measuring recovery. Surrogates are not expected to be
rqC
detected in all environmental media.
U
Not detected at the Reporting Limit (or MDL where applicable).
Analyte
The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes
reported.
If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the
Dilution
standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the
FAI
laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the
result reported has already been corrected for this factor.
These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal
Limits
for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or
SC
duplicated within these ranges.
This column provides a letter and/or number designation that corresponds to additional information concerning the result
Qualifier
reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and
potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable.
The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was
no measurable result returned for a specific analyte, the result in this column may state "ND" (Not Detected) or "BDL"
Result
(Below Detectable Levels). The information in the results column should always be accompanied by either an MDL
(Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect
or report for this analyte.
Uncertainty
(Radiochemistry)
Confidence level of 2 sigma.
A brief discussion about the included sample results, including a discussion of any non -conformances to protocol
Case Narrative (Cn)
observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will
be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report.
Quality Control
This section of the report includes the results of the laboratory quality control analyses required by procedure or
Summary (Qc)
analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not
being performed on your samples typically, but on laboratory generated material.
This is the document created in the field when your samples were initially collected. This is used to verify the time and
Sample Chain of
date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This
Custody (Sc)
chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the
samples from the time of collection until delivery to the laboratory for analysis.
This section of your report will provide the results of all testing performed on your samples. These results are provided
Sample Results (Sr)
by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for
each sample will provide the name and method number for the analysis reported.
Sample Summary (Ss)
This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and
times of preparation and/or analysis.
Qualifier
Description
J
The identification of the analyte is acceptable; the reported value is an estimate.
J1
Surrogate recovery limits have been exceeded; values are outside upper control limits.
ACCOUNT:
PROJECT: SDG: DATE/TIME: PAGE:
ECS Southeast LLP - Asheville
INC 49:13699-F L1579059 07/11/23 11:19 33 of 38

ACCREDITATIONS & LOCATIONS
Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122
Alabama
40660
Nebraska
NE-OS-15-05
Alaska
17-026
Nevada
TN000032021-1
Arizona
AZ0612
New Hampshire
2975
Arkansas
88-0469
New Jersey—NELAP
TN002
California
2932
New Mexico
TN00003
Colorado
TN00003
New York
11742
Connecticut
PH-0197
North Carolina
Env375
Florida
E87487
North Carolina'
DW21704
Georgia
NELAP
North Carolinas
41
Georgia'
923
North Dakota
R-140
Idaho
TN00003
Ohio—VAP
CL0069
Illinois
200008
Oklahoma
9915
Indiana
C-TN-01
Oregon
TN200002
Iowa
364
Pennsylvania
68-02979
Kansas
E-10277
Rhodelsland
LA000356
Kentucky16
KY90010
South Carolina
84004002
Kentucky 2
16
South Dakota
n/a
Louisiana
A130792
Tennessee' °
2006
Louisiana
LA018
Texas
T104704245-20-18
Maine
TN00003
Texas'
LAB0152
Maryland
324
Utah
TN000032021-11
Massachusetts
M-TN003
Vermont
VT2006
Michigan
9958
Virginia
110033
Minnesota
047-999-395
Washington
C847
Mississippi
TN00003
West Virginia
233
Missouri
340
Wisconsin
998093910
Montana
CERT0086
Wyoming
A21-A
A21-A — ISO 17025
1461.01
AIHA-LAP,LLC EMLAP
100789
A21-A — ISO 17025 s
1461.02
DOD
1461.01
Canada
1461.01
USDA
P330-15-00234
EPA—Crypto
TN00003
Drinking Water 2 Underground Storage Tanks 'Aquatic Toxicity ° Chemical/Microbiological 'Mold 6 Wastewater n/a Accreditation not applicable
Not all certifications held by the laboratory are applicable to the results reported in the attached report.
Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical.
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ACCOUNT:
ECS Southeast LLP - Asheville NC
PROJECT: SDG: DATE/TIME: PAGE:
49:13699-F L1579059 07/11/23 11:19 34 of 38

iCompanyName/Address,
Billing Information:
Anal
sis
Chain❑fCustody Page _of
ECS Southeast LLP - Asheville NC
James Bevers
1900 Hendersonville Rd, Ste 10
Asheville, INC 26603
ace
1900 Hendersonville Rd, Ste 10
Asheville, INC 26803
PEOPLE AOYANCING SCIENCE
MT JULIET, TN
12065 Leb+ .. Rind bll IuAet. TN 3714
Ph,-,.,: 615-758-SASµ Alu µW-7674R54
Submiumg-plc via Ihi,chaln ul cuatudy
Report TO:
Email To
Don Marlor
[e-mail]
onstiwtec acknowledgment and uc plan"
of the Pace Term. and Candillona found ae
hltpsaiinfu parrlahssumfhuhH�par
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Acctnum: ECSAM,
170
Template: T222735
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Date Results Needed
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Date: Time:
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date
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Date:
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Date:
Time,
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Company Name/Address.
Billing Information:
Analysis
Chain of Custody Page
ECS Southeast LLP - Asheville NC
James severs
_of_
1900 Hendersonville Rd, Ste 10
1900 Hendersonville Rd, Ste 10
Asheville, NC 28803
ace
Asheville, NC 28803
PEOPIE ADVANCING SCIENCE
MT JULIET, TN
12065 Ubwai, Rw MI blm.'rN AISI
VLm r. nis......e xlc a. 7173B59
Report TO.
Email To
Don Marlor
dmarm �ecslimueE com
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Template: T222735
Collected by (signature).
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Prelogin: P974374
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_Next Day _five Day
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Relinquished by: (Signature)
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Time.
Received by, (Signature)
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Condition: (lab use only)
Relinquished by : (Signature)
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APPENDIX C

Risk for Individual Pathways
Version Date: January 2023
Basis: November 2022 EPA RSL Table
Site ID: Former Smokey Mountain Petroleum Company Site
Exposure Unit ID: Worst Case Scenario
DIRECT CONTACT SOIL AND WATER CALCULATORS
Receptor
Pathway
Carciinn kenic
Hazard Index
Risk exceeded?
Resident
Soil
0.0E+00
0.0E+00
NO
Groundwater Use*
NC
NC
NC
Non -Residential Worker
Soil
0.0E+00
0.0E+00
NO
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
CarcinogenicHazard
Risk
Index
Risk exceeded?
Resident
Groundwater to Indoor Air
0.0E+00
0.0E+00
NO
Soil Gas to Indoor Air
1.0E-05
2.1E+00
YES
Indoor Air
0.0E+00
0.0E+00
NO
Non -Residential Worker
Groundwater to Indoor Air
0.0E+00
0.0E+00
NO
Soil Gas to Indoor Air
7.9E-07
1.6E-01
NO
Indoor Air
0.0E+00
0.0E+00
NO
CONTAMINANT MIGRATION CALCULATORS
Pathway
Source
Target Receptor Concentrations Exceeded?
Groundwater
Source Soil
Exceedence of 21, at Receptor?
NM
Source Groundwater
Exceedence of 21, at Receptor?
NM
Surface Water
Source Soil
Exceedence of 213 at Receptor?
NM
Source Groundwater
Exceedence of 213 at Receptor?
NM
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 213 Standards, appropriate remediation and/or institutional control measures will be necessary to be eligible for a risk -based
closure.
3. NM = Not modeled, user did not check this pathway as complete.
4. NC = Pathway not calculated, required contaminant migration parameters were not entered.
North Carolina DEQ Risk Calculator