WS-8730_37979_CA_MRP_20230510

Arcadis G&M of North Carolina, Inc.
Wade I
5420 Wade Park Boulevard
Suite 350
Raleigh, NC 27607
Tel [phone]
Fax [phone]

Ms. Christina Schroeter
NCDEQ – UST Section
Winston-Salem Regional Office
450 West Hanes Mill Road, Suite #300
Winston-Salem, North Carolina 27105

Subject:
Groundwater Monitoring & Sampling Report – 2H2022
Former Gant Oil Company #823
4325 Old Rural Hall Rd
Winston-Salem, Forsyth County, North Carolina
Groundwater Incident #13998/37979
Risk Ranking: Intermediate

Dear Ms. Schroeter:

On behalf of Transport Pool Corporation (TPC, formerly CNL APF Partners, LP),
Arcadis G&M of North Carolina, Inc. (Arcadis) is submitting the attached
Groundwater Monitoring & Sampling Report – 2H2022 dated May 10, 2023 for
the above referenced site.
Please contact me at [phone] with any questions or concerns related to
the Report or this incident number.
Sincerely,
Arcadis G&M of North Carolina, Inc.

Hardik Patel
Certified Project Manager

Copies:
File – Former Gant Oil Company #823 (Winston-Salem, North Carolina)
GE – Mr. Bob Witsell
ENVIRONMENT

Date:
May 10, 2023

Contact:
Hardik Patel

Phone:
919.328.5605

Email:
[e-mail]

Our ref:
ARC16052.4000
30006419.4000A

Transport Pool Corporation
(Formerly CNL APF Partners, LP)

Groundwater Monitoring and Sampling Report –
2H2022

EXPREZIT! #823
4325 Old Rural Hall Rd
Winston-Salem, Forsyth County, North Carolina

NCDEQ Incident #13998/37979
May 2023

Groundwater Monitoring and Sampling Report – 2H2022
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CONTENTS
1.0 Site History and Characterization ........................................................................................................... 1
2.0 Free Product ........................................................................................................................................... 3
3.0 Groundwater Monitoring .......................................................................................................................... 4
3.1 Groundwater Gauging ....................................................................................................................... 4
3.2 Groundwater Sampling ..................................................................................................................... 4
3.3 Groundwater Analytical Results ........................................................................................................ 5
4.0 Site Remediation ..................................................................................................................................... 7
5.0 Conclusions and Recommendations ....................................................................................................... 8

TABLES
Table 1. Monitoring Well Construction Details
Table 2. Current Groundwater Elevation Data
Table 3. Current Groundwater Analytical Data
FIGURES
Figure 1. Site Location Map
Figure 2. Site Map
Figure 3. Potentiometric Surface Map – December 29, 2022
Figure 4. Groundwater Analytical Data – December 2021 to December 29, 2022
Figure 5. Benzene Concentration Map – December 29, 2022
APPENDICES
A- Historical Groundwater Elevation Data
B- Laboratory Analytical Report and Chain-of-Custody Record – January 9, 2023
C- Historical Groundwater Analytical Data

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EXECUTIVE SUMMARY
On behalf of Transport Pool Corporation (Formerly CNL APF Partners, LP), Arcadis G&M
of North Carolina, Inc. (Arcadis) personnel performed semi-annual groundwater
monitoring and sampling activities during 2H2022 at Former Gant Oil Company #823
located at 4325 Old Rural Hall Road in Winston-Salem, Forsyth County, North Carolina
(the Site). The objective of the groundwater monitoring and sampling program is to
confirm stable or decreasing concentrations of dissolved-phase chemicals of concern
(COCs), and to maintain compliance with the North Carolina Department of
Environmental Quality (NCDEQ) Underground Storage Tank (UST) Program
requirements for the Site.
On December 29, 2022, sixteen (16) groundwater monitoring wells (MW-3, MW-6, MW-
7, MW-8, MW-9, MW-10, MW-11, MW-12, MW-13, MW-14, MW-15, MW-16, MW-17,
MW-18, MW-19 and MW-20) and four (4) deep groundwater monitoring wells (DW-1,
DW-2, DW-3, and VEW-4) were gauged to determine the depth to water (DTW) and
depth to product (DTP), if present. MW-1, MW-2 and MW-4 could not be gauged because
they had been destroyed for some time, and MW-5 could not be located. These wells will
not be discussed in future reports. During this monitoring event, DTW ranged from 4.87
feet below top of casing (BTOC) in monitoring well MW-9 to 19.72 feet BTOC in
monitoring well MW-20. Free product was not detected at the Site during this reporting
period. The observed groundwater flow direction was towards the southwest, which is
consistent with historical observed groundwater flow direction.
During this monitoring event, a groundwater sample was collected from groundwater
monitoring well (MW-15). The maximum concentrations of dissolved-phase COCs found
during the December 29, 2022 sampling event are summarized in the table below:

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Maximum Groundwater Concentrations (December 29, 2022)
Chemical of Concern
(COC)
Monitoring
Well
ID
Concentration
(µg/L)
North
Carolina
GCL
Standards

Benzene MW-15 4,760 5,000
Toluene MW-15 9,570 260,000
Ethylbenzene MW-15 1,380 84,500
Xylenes MW-15 7,360 85,500

MTBE MW-15 837 20,000

Naphthalene MW-15 354 6,000
Isopropylbenzene MW-15 NA 25,000
1,2,4- Trimethylbenzene MW-15 NA 28,500
1,3,5- Trimethylbenzene MW-15 NA 25,000
Diisopropyl Ether MW-15 208 70,000
PCE - BDL 700

TCE - BDL 3,000

EDB MW-15 BDL 50
1,2 Dichloroethane MW-15 142 400
Bromodichloromethane - BDL NSE
Chloroform - BDL 70,000
n-butylbenzene - NA 6,900
Note:
1) PCE = Tetrachloroethene
2) TCE = Trichloroethene
3) MTBE = Methyl tert-butyl ether
4) EDB = Ethylene dibromide (1,2-dibromoethane)
5) NSE = No Standard Established
6) Concentrations that are Bold exceed the North Carolina Gross Contamination Levels for
Groundwater (GCL) Standards
7) BDL = Below Detection Limit
8) NA = Not Analyzed

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No dissolved-phase COCs were detected in concentrations exceeding the applicable
North Carolina GCL Standards. Overall, dissolved-phase COC concentrations have
decreased in comparison to historical groundwater analytical data.
The next semi-annual groundwater monitoring and sampling event for the Site is
scheduled for June 2023. All groundwater monitoring wells associated with the Site will
be gauged to check for free product and to determine the potentiometric surface at the
Site. Arcadis will sample groundwater monitoring well MW-15 for analysis of full list of
VOC’s by Standard Method (SM) 6200B. A Semi-annual Groundwater Monitoring Report
will be submitted to the NCDEQ for review and approval.
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1.0 SITE HISTORY AND CHARACTERIZATION
Gant Oil Company & Exprezit! Convenience Stores, LLC owned USTs which were
formerly operated at the Gant Oil #823 facility located at 4325 Old Rural Hall Road in
Winston Salem, North Carolina (the Site). This facility contains one permanent structure
which was used as a convenience store but is now vacant. The site formerly contained
(1) 7,500-gallon gasoline, (2) 3,000-gallon gasoline, (1) 4,000-gallon gasoline and (1)
2,000-gallon kerosene USTs which were used for commercial sales at this facility and
removed by Gant Oil Company in October 1993. After the 1993 closure of these original
USTs, Gant Oil Company installed (1) 12,000-gallon gasoline, (1) 8,000-gallon gasoline,
(1) 4,000-gallon kerosene, and (1) 6,000-gallon gasoline USTs. The ownership of these
USTs was transferred to Exprezit! Convenience Stores, LLC on 8/17/2001. A site location
map is presented as Figure 1, and Figure 2 illustrates the layout of the site, first and
second-generation UST locations, and the dispenser island locations.
Exprezit! Convenience Stores, LLC employed Advanced Environmental Technologies,
LLC (AET) to conduct Limited Site Assessment (LSA) and Comprehensive Site
Assessment (CSA) activities in 2003 through 2004 for Incident #13998, including
additional assessment activities submitted to the NCDEQ in the form of a CSA
Addendum. The CSA Addendum submitted by AET identified the presence of what was
believed to be two distinct source area plumes; one originating from the Gant #823 site,
and the other originating to the south of the Gant site on what is the current location of a
SunTrust Bank branch. AET did not identify the locations of any receptor wells within
1,000’ of the project location; however, a surface water body was identified (Leak Fork)
within 500’ of the release source originating from the Gant #823 facility. The site and
adjacent properties are used for commercial/residential purposes. Municipal water supply
from the City of Winston Salem serves the site and is available to all properties within
1,500’. Two irrigation wells were formerly located within 250’ of the Gant source areas,
side-gradient from the site. These wells were abandoned in May 2020.
During UST closure operations for the second-generation USTs conducted on June 5-12,
2012, a new release was suspected at this site based on elevated PID readings observed
in soil samples collected from the UST overburden and pit. This release was confirmed
upon receipt of analytical results from soil samples collected during the 2012 tank closure
activities. Groundwater was observed during UST excavation or during remedial activities
at a depth of approximately 18’-19’ below grade. The NCDEQ assigned a new incident
number for this release (#37979), and subsequently approved the over-excavation of
2,074 tons of soil to abate contaminated soils located on the Gant #823 facility. The UST
owner was unresponsive in the closure of the USTs at this facility in 2012; consequently,
the property owner elected to apply for Trust Fund eligibility and was subsequently
granted access to reimbursement funding for the releases at this facility.
As a voluntary effort to move the site towards No Further Action status, the NCDEQ
approved an Electronic Preapproval Task Authorization (ePATA) for Transport Pool
Corporation to proceed with completion of CSA activities. The goal of the CSA was to
Groundwater Monitoring and Sampling Report – 2H2022
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delineate soil and groundwater contamination originating from the Gant #823 facility, and
to ascertain whether separate down-gradient release sources are co-mingled with the
Gant #823 plume. A CSA Report prepared by Enercon Services, Inc. was submitted to
the NCDEQ on December 14, 2016.
During the initial sampling events in 2003, GCL exceedances were noted for benzene in
on-site wells MW-1, MW-2 and MW-3. At that time, Total BTEX was noted at a maximum
level of 122,760 ug/l in MW-11, with benzene detected at a level of 4,590 ug/l, below its
North Carolina Gross Contamination Levels (GCLs). During the February 2012 sampling
event, GCL exceedances were observed in MW-11 for 6 gasoline related compounds,
with a Total BTEX level of 546,700 ug/l observed in this well. During the October 2016
sampling of MW-11, the analytical laboratory noted a colorless floating layer of free
product in the MW-11 sample containers, and the total BTEX concentration was noted at
3,869,000 ug/l. During the May 2017 sampling event, MW-11 was carefully gauged and
found to contain 0.02’ of colorless floating free product and was not sampled for 6200B
analyses. During the sampling event on October 26, 2017, the free product thickness
increased to a level of 0.27’ in MW-11.
Source area vertical extent well DW-1, screened from 48’ to 53’ below grade in the
weathered rock aquifer, has shown a continual increase in COC concentrations, with
GCL exceedances noted in this well for three compounds during the May 2017 sampling
event (benzene, EDB, and 1,2-Dichloroethane). It should be noted that none of these
compounds have been detected above GCLs through the history of sampling of MW-11.
Further, neither EDB or 1, 2-Dichloroethane have ever appeared in MW-11, which
supports the belief that the free product and dissolved COCs in MW-11 represent a
separate off-site source area.
Based on evaluation of historical data and the presence of floating free product in MW-
11, the NCDEQ has determined that this free product represents a separate off-site
source area for gasoline contamination.
The site is situated in the Milton Belt. According to the Geological Map of North Carolina,
local geology of the region is underlain with Biotite Gneiss & Schist. Weathered bedrock
was encountered in some borings at depths as shallow as 12 feet below surface. The
soils at the project site consist of silts, sands, and clays of varying proportions. Surface
waters in the vicinity of the release area generally drain towards the west/northwest
through storm sewer catch basins which empty into an unnamed intermittent stream
which feeds the Leak Fork drainage system. The Leak Fork drainage system lies within
the Yadkin-PeeDee River Basin. Groundwater flow at the Site is generally to the
south/southwest.
The Site was previously classified as High Risk based on the presence of two irrigation
wells within 250’ of the site. On May 14, 2020, Arcadis personnel oversaw the
abandonment of the two irrigation wells located at 4312 and 4316 Old Rural Hall Road,
Winston-Salem, NC. A reduction in risk classification from “High” to “Intermediate” was
approved on May 18, 2020. The new Risk Rank Abatement Score is now I134D.
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Comparison of dissolved-phase COCs was subsequently changed from the North
Carolina 2L Standard to the North Carolina Gross Contaminant Levels (GCLs).

2.0 FREE PRODUCT
Groundwater gauging activities performed on December 29, 2022 did not indicate the
presence of free product at the Site or off-site. Free product has not been observed
historically in any on-site monitoring well. Free product has been historically observed
periodically at the following off-site location:

• Groundwater monitoring well MW-11 from October 2016 to May 2018 at a
maximum apparent thickness of 0.27 feet on October 26, 2017.
The floating free product observed previously in MW-11 has been determined to be from
an off-site source by the NCDEQ Winston-Salem Regional Office.
Current and historical free product gauging information is presented in Appendix A.

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3.0 GROUNDWATER MONITORING
3.1 Groundwater Gauging
On December 29, 2022, Arcadis personnel completed the 2nd Half 2022 groundwater
monitoring and sampling event at the Site. Sixteen (16) groundwater monitoring wells
(MW-3, MW-6, MW-7, MW-8, MW-9, MW-10, MW-11, MW-12, MW-13, MW-14, MW-15,
MW-16, MW-17, MW-18, MW-19 and MW-20) and four (4) deep groundwater monitoring
wells (DW-1, DW-2, DW-3 and VEW-4) were gauged to determine the depth to water
(DTW) and depth to product (DTP), if present. MW-1, MW-2 and MW-4 could not be
gauged because they had been destroyed for some time, and MW-5 could not be
located. Gauging was conducted with an oil/water interface probe (IP) prior to purging
and sampling to determine depth to bottom (DTB), DTW, and DTP, if present. The IP and
attached tape, marked in 0.01-foot increments, were properly decontaminated before
each use with Alconox® soap and rinsed with distilled water. The DTW was measured
from the marked survey point on the top of well casing (TOC). All measurements were
recorded to the nearest 0.01-foot increment.
During this monitoring event, DTW ranged from 4.87 feet below top of casing (BTOC) in
monitoring well MW-9 to 19.72 feet BTOC in monitoring well MW-20. Free product was
not detected at the Site during this reporting period. The observed groundwater flow
direction was towards the south-southeast, which is consistent with historical observed
groundwater flow direction.
Monitoring well construction details are included in Table 1. Current groundwater
elevations are summarized in Table 2. Historical groundwater gauging data is provided in
Appendix A. A potentiometric surface map depicting historical groundwater flow direction
for December 29, 2022 is provided as Figure 3.
3.2 Groundwater Sampling
On December 29, 2022, groundwater monitoring well (MW-15) was purged of stagnant
water to prepare for groundwater sampling. Prior to purging, the amount of water to be
removed was calculated using the following formula:
3.1415 x r2 x (TD-DTW) x 7.481 = gallons of water (1 well volume)
3.1415 x 0.1672 x (29.50 – 14.84) x 7.481 = 9.61 gallons of water at MW-15
Where: r = radius of well (in feet)
TD = total depth of well (in feet)
DTW = depth to water (in feet)
To ensure that the water in the wells is representative of the water in the aquifer, a
minimum of three well volumes were removed.
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The groundwater sample obtained from the groundwater monitoring well was collected
from a disposable polyethylene bailer using new nylon rope. The sample were placed in a
laboratory supplied container and shipped on wet ice to Pace Analytical Services LLC. in
Huntersville, North Carolina, for analysis of full list of VOC’s by Standard Method (SM)
6200B. Groundwater samples submitted for VOC’s analysis were collected in triplicate
40-milliliter volatile organic analysis (VOA) glass vials with Teflon-lined septa screw caps
preserved with hydrochloric acid.
The laboratory analytical report and chain-of-custody record for the December 29, 2022
groundwater sampling event is included as Appendix B.
3.3 Groundwater Analytical Results
Groundwater analytical data from the December 29, 2022 groundwater sampling event
indicated the following:
• Dissolved-phase concentration of benzene was detected at a concentration not
exceeding the North Carolina GCL Standard of 5,000 µg/L in monitoring wellMW-
15 (4,760 µg/L).

The maximum concentrations of dissolved-phase COCs found during the December 29,
2022 sampling event are summarized in the table below:
Maximum Groundwater Concentrations (December 29, 2022)
Chemical of Concern
(COC)
Monitoring
Well
ID
Concentration
(µg/L)
North
Carolina
GCL
Standards

Benzene MW-15 4,760 5,000
Toluene MW-15 9,570 260,000
Ethylbenzene MW-15 1,380 84,500
Xylenes MW-15 7,360 85,500

MTBE MW-15 837 20,000

Naphthalene MW-15 354 6,000
Isopropylbenzene MW-15 NA 25,000
1,2,4- Trimethylbenzene MW-15 NA 28,500
1,3,5- Trimethylbenzene MW-15 NA 25,000
Diisopropyl Ether MW-15 208 70,000
PCE - BDL 700

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TCE - BDL 3,000

EDB MW-15 BDL 50
1,2 Dichloroethane MW-15 142 400
Bromodichloromethane - BDL NSE
Chloroform - BDL 70,000
n-butylbenzene - NA 6,900
Note:
1) PCE = Tetrachloroethene
2) TCE = Trichloroethene
3) MTBE = Methyl tert-butyl ether
4) EDB = Ethylene dibromide (1,2-dibromoethane)
5) NSE = No Standard Established
6) Concentrations that are Bold exceed the North Carolina Gross Contamination Levels for
Groundwater (GCL) Standards
7) BDL = Below Detection Limit

No dissolved-phase COCs were detected at concentrations exceeding the applicable
North Carolina GCL Standards. Overall, dissolved phase COC concentrations have
decreased in comparison to historical groundwater analytical data.
Current analytical groundwater data can be found in Table 3. Figure 4 shows the current
groundwater analytical map.

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4.0 SITE REMEDIATION

Remediation activities to date are summarized in chronological order in the table below:

Date Activity
2003 – 2004 LSA and CSA activities were conducted for Incident #13998.
Additional assessment activities were conducted and submitted
to NCDEQ in the form of a CSA Addendum. Identified presence
of two distinct source area plumes; one originating from the
Gant #823 site, and a second originating to the south of the
Gant site on what is the current location of a SunTrust Bank
branch.
June 5-12, 2012 During UST closure operations, a new release was suspected at
this site based on elevated PID readings observed in soil
samples collected from the UST overburden and pit. Incident
#37979 was issued for this release. 2,074 tons of soils were
excavated to abate contaminated soils.
December 14, 2016 A CSA report was submitted to NCDEQ. This helped delineate
soil and groundwater contamination originating from the Gant
#823 facility.
December 2016 –
Present
Groundwater Monitored Natural Attenuation has been
implemented via semi-annual sampling.
May 11, 2020 Arcadis personnel oversaw the completion of one (1)
eight-hour Aggressive Fluid Vapor Recovery (AFVR)
event utilizing groundwater monitoring wells MW-14 and
MW-15. A total of 2,361-gallons of petroleum impacted
groundwater was recovered and properly disposed of at
the HAZ~MAT Environmental Services L.L.C.
(HAZ~MAT) facility in Charlotte, North Carolina.
Approximately 1.0 pound of total petroleum hydrocarbon
(TPH) mass was recovered during the May 11, 2020
AFVR event.

September 18, 2020 Arcadis personnel oversaw the completion of one (1)
eight-hour AFVR event utilizing deep groundwater
monitoring well DW-1. A total of 623-gallons of
petroleum impacted groundwater was recovered and
properly disposed of at the HAZ~MAT Environmental
Services L.L.C. (HAZ~MAT) facility in Charlotte, North
Carolina. Approximately 0.2 pound of total petroleum
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hydrocarbon (TPH) mass was recovered during the
September 18, 2020 AFVR event.

5.0 CONCLUSIONS AND RECOMMENDATIONS
Free product was not observed at the Site during the December 29, 2022 groundwater
monitoring and sampling event. No dissolved-phase COCs were detected at
concentrations exceeding the applicable North Carolina GCL Standards. Overall,
dissolved-phase COC concentrations have remained stable or decreased in comparison
to historical groundwater analytical data.
The next semi-annual groundwater monitoring and sampling event for the Site is
scheduled for June 2023. All groundwater monitoring wells associated with the Site will
be gauged to check for free product and to determine the potentiometric surface at the
Site. Arcadis will sample groundwater monitoring well MW-15 for analysis of full list of
VOC’s by Standard Method (SM) 6200B. A Semi-annual Groundwater Monitoring Report
will be submitted to the NCDEQ for review and approval.

TABLES

Table 1
Monitoring Well Construction Details
Groundwater Monitoring and Sampling Report - 2H2022
Former Gant Oil Company #823
4325 Old Rural Hall Road
Winston Salem, North Carolina
Well ID TOC Elevation
(feet)
Top of Screen
Elevation
(feet btoc)
Bottom of
Screen
Elevation
(feet btoc)
Screen
Interval Aquifer
Depth to
Groundwater (feet
btoc)
Groundwater
Elevation
(feet)
MW-1 1,005.00 990.00 975.00 15-30 Shallow Destroyed No Data
MW-2 1,005.41 990.41 975.41 15-30 Shallow Destroyed No Data
MW-3 1,003.83 988.83 973.83 15-30 Shallow 8.48 995.35
MW-4 1,006.90 991.90 976.90 15-30 Shallow Paved Over No Data
MW-5 1,011.32 996.32 981.32 15-30 Shallow Unable to Locate No Data
MW-6 1,008.33 993.33 978.33 15-30 Shallow 15.15 993.18
MW-7 1,008.86 993.86 978.86 15-30 Shallow 15.27 993.59
MW-8 1,002.37 987.37 972.37 15-30 Shallow 6.45 995.92
MW-9 1,001.95 991.95 976.95 10-25 Shallow 4.87 997.08
MW-10 1,004.86 994.86 979.86 10-25 Shallow 8.76 996.10
MW-11 1,010.12 990.12 980.12 20-30 Shallow 15.40 994.72
MW-12 1,011.51 991.51 981.51 20-30 Shallow 18.83 992.68
MW-13 1,004.81 990.81 970.81 14-34 Shallow 9.85 994.96
MW-14 1,005.90 990.90 970.90 15-35 Shallow 10.28 995.62
MW-15 1,005.46 994.46 974.46 11-31 Shallow 16.00 989.46
MW-16 1,009.78 994.78 974.78 15-35 Shallow 14.65 995.13
MW-17 1,009.33 994.33 974.33 15-35 Shallow 14.44 994.89
MW-18 1,011.46 996.46 976.46 15-35 Shallow 17.77 993.69
MW-19 1,011.36 996.36 976.36 15-35 Shallow 18.16 993.20
MW-20 1,011.40 996.40 976.40 15-35 Shallow 19.72 991.68
DW-1 1,005.91 957.91 952.91 48-53 Intermediate 10.35 995.56
DW-2 1,008.65 960.65 953.65 48-55 Intermediate 12.20 996.45
DW-3 1,006.04 936.04 931.04 70-75 Intermediate 10.17 995.87
VEW-4 1,005.93 885.93 845.93 120-160 Lower 12.64 993.29
Notes:
All measurements taken in feet and based on benchmark surveyed by AET, Inc.
Groundwater levels measured on12/29/2022
btoc = below top of casing
TOC = top of casing
N/A = not available
NM = not measured
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Table 2
Current Groundwater Elevation Data
Groundwater Monitoring and Sampling Report - 2H2022
Former Gant Oil Company #823
4325 Old Rural Hall Road
Winston Salem, North Carolina 27105
Well ID Date TOC Elevation
(feet)
Depth to LNAPL
(feet btoc)
Depth to Groundwater
(feet btoc)
Groundwater Elevation
(feet)
MW-1 12/29/2022 1,005.00 NP Destroyed No Data
MW-2 12/29/2022 1,005.41 NP Destroyed No Data
MW-3 12/29/2022 1,003.83 NP 8.48 995.35
MW-4 12/29/2022 1,006.90 NP Paved Over No Data
MW-5 12/29/2022 1,011.32 NP Unable to Locate No Data
MW-6 12/29/2022 1,008.33 NP 15.15 993.18
MW-7 12/29/2022 1,008.86 NP 15.27 993.59
MW-8 12/29/2022 1,002.37 NP 6.45 995.92
MW-9 12/29/2022 1,001.95 NP 4.87 No Data
MW-10 12/29/2022 1,004.86 NP 8.76 996.10
MW-11 12/29/2022 1,010.12 NP 15.40 994.72
MW-12 12/29/2022 1,011.51 NP 18.83 992.68
MW-13 12/29/2022 1,004.81 NP 9.85 994.96
MW-14 12/29/2022 1,005.90 NP 10.28 995.62
MW-15 12/29/2022 1,005.46 NP 16.00 989.46
MW-16 12/29/2022 1,009.78 NP 14.65 995.13
MW-17 12/29/2022 1,009.33 NP 14.44 994.89
MW-18 12/29/2022 1,011.46 NP 17.77 993.69
MW-19 12/29/2022 1,011.36 NP 18.16 993.20
MW-20 12/29/2022 1,011.40 NP 19.72 991.68
DW-1 12/29/2022 1,005.91 NP 10.35 995.56
DW-2 12/29/2022 1,008.65 NP 12.20 996.45
DW-3 12/29/2022 1,006.04 NP 10.17 995.87
VEW-4 12/29/2022 1,005.93 NP 12.64 993.29
Notes:
All measurements taken in feet and based on benchmark surveyed by AET, Inc.
TOC = top of casing
LNAPL = light non-aqueous phase liquid
btoc = below top of casing
-- = not available
NM = not measured
NP = no product
Page 1 of 1
Table 3 - Current Groundwater Analytical Data
Former Gant Oil Company #823
4325 Old Rural Hall Road
Winston-Salem, North Carolina
Well ID Date
Sampled
Benzene
(ug/l)
Toluene
(ug/l)
Ethylbenzene
(ug/l)
Xylenes
(ug/l)
PCE
(ug/l)
TCE
(ug/l)
Naphthalene
(ug/l)
EDB
(ug/l)
1,2
Dichloroethane
(ug/l)
MTBE
(ug/l)
1,2,4-
Trimethylbenzene
(ug/l)
1,3,5-
Trimethylbenzene
(ug/l)
1,2-
Dichloropropane Bromodichloromethane Chloroform cis-1,2-
Dichloroethene
Diisopropyl
Ether (DIPE)Isopropylbenzene Methylene
Chloride
n-
butylbenzene
n-
propylbenzene
sec-
butylbenzene Styrene tert-
butylbenzene
NC GCL Standard 5,000 260,000 84,500 85,500 700 3,000 6,000 50 400 20,000 28,500 25,000 600 NSE 70,000 70,000 70,000 25,000 5,000 6,900 30,000 8,500 70,000 15,000
MW-3 12/29/2022 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS
MW-7 12/29/2022 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS
MW-8 12/29/2022 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS
MW-9 12/29/2022 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS
MW-10 12/29/2022 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS
MW-13 12/29/2022 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS
MW-14 12/29/2022 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS
MW-15 12/29/2022 4,760 9,570 1,380 7,360 BDL BDL 354 BDL 142 837 NA NA BDL BDL BDL BDL 208 NA BDL NA NA NA BDL NA
MW-16 12/29/2022 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS
MW-18 12/29/2022 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS
MW-19 12/29/2022 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS
MW-20 12/29/2022 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS
DW-1 12/29/2022 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS
DW-3 12/29/2022 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS
VEW-4 12/29/2022 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS
Notes:
All results reported in micrograms per liter (ug/L)
GCL Standard = NC Gross Contamination Levels for groundwater.
BDL = Below Detection Limits
EDB = 1,2-Dibromoethane
MTBE = Methyl-tert-butyl-ether
PCE = Tetrachloroethylene
TCE = Trichloroethylene
NS = Not Sampled
N/A = Not Applicable
NSE = No Standard Established
Bold and shaded values exceed the GCL Standards
NA = Not Analyzed

FIGURES

NORTH CAROLINA
SOURCE: USGS 7.5 MINUTE QUADRANGLE, WALKERTOWN, NC 2016
SITE
LOCATION
Approximate Scale: 1 in. = 2,000 ft.
0 2,000'4,000'
SITE LOCATION MAP
1
FIGURE
GROUNDWATER M&S REPORT - 2H2022
FORMER GANT OIL COMPANY #823
4325 OLD RURAL HALL RD,
WINSTON SALEM, NORTH CAROLINA 27105AREA
LOCATION
IMAGES: NC_Walkertown_20160628_TMorth_geo.tifXREFS:PROJECTNAME: ----C:\Users\ymb2640\ACCDocs\Arcadis\AUS-GE-OLD RURAL HALL-WINSTON SALEM North Carolina\Project Files\2022\01-In Progress\01-DWG\GEN-F01-SITE LOCATION-1.dwg LAYOUT: 1 SAVED: 7/2/2022 2:02 PM ACADVER: 24.1S (LMS TECH) PAGESETUP: ---- PLOTSTYLETABLE: PLTFULL.CTBPLOTTED: 7/7/2022 2:25 PM BY: Y M, BABU
SUNTRUSTBANK
EOPEOPEOP
EOPEOPEOP
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H
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FORMER
USTs
STOREBLDG
4314 OLD
WALKERTOWNROAD BLDGOLD
WALKER
TOWN
RD

(
60
'
ROW
)CONLEY ST.RANCE TILLOTSON
4309 OLD WALKERTOWN RD
FORSTYH PIN #6837-85-6247.00
LEON POLLACK
4314 OLD WALKERTOWN RD
FORSTYH PIN #6837-85-7552.00
CANOPY #1
CANOPY #2
EOP
FORMER PUMPS
AND PIPING
VEW-4DW-2
DW-1DW-3
MW-10MW-13
MW-9
MW-16
MW-20
MW-19
MW-18
MW-7
MW-6
MW-11
MW-12
MW-17
MW-15
MW-3
MW-8
MW-14
MW-4
MW-5
FIGURE
2IMAGES:XREFS:X-TITLEX-BASEMAPPROJECTNAME: ----CITY:(Reqd) DIV/GROUP:(Reqd) DB:(Reqd) LD:(Opt) PIC:(Opt) PM:(Reqd) TM:(Opt) LYR:(Opt)ON=*;OFF=*REF*C:\Users\ymb2640\ACCDocs\Arcadis\AUS-GE-OLD RURAL HALL-WINSTON SALEM North Carolina\Project Files\2022\01-In Progress\01-DWG\GEN-F02-SITE MAP-1.dwg LAYOUT: 2 SAVED: 9/8/2022 4:21 PM ACADVER: 24.1S (LMS TECH) PAGESETUP: ---- PLOTSTYLETABLE: ---- PLOTTED: 9/9/202211:22 AM BY: Y M, BABUSITE PLAN
0 80'40'
APPROXIMATE SCALE 1 in. = 40 ft.
GROUNDWATER M&S REPORT - 2H2022
FORMER GANT OIL COMPANY #823
4325 OLD RURAL HALL RD,
WINSTON SALEM, NORTH CAROLINA 27105
LEGEND:
PROPERTY LINE
PRODUCT LINE
GROUNDWATER MONITOR WELL LOCATION
MONITORING WELL DESTROYED/PAVED OVER
DEEP MONITORING WELL LOCATION
VAPOR EXTRACTION WELL LOCATION
MW-18
MW-4
VEW-4
DW-3
SUNTRUSTBANK
EOPEOPEOP
EOPEOPEOP
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FORMER
USTs
STOREBLDG
4314 OLD
WALKERTOWNROAD BLDGOLD
WALKER
TOWN
RD

(
60
'
ROW
)CONLEY ST.RANCE TILLOTSON
4309 OLD WALKERTOWN RD
FORSTYH PIN #6837-85-6247.00
LEON POLLACK
4314 OLD WALKERTOWN RD
FORSTYH PIN #6837-85-7552.00
CANOPY #1
CANOPY #2
EOP
FORMER PUMPS
AND PIPING
MW-4
MW-10
(996.10)MW-13
(994.96)*
MW-9
(NG)
MW-20
(991.68)*
MW-19
(993.20)
MW-18
(993.69)
MW-7
(993.59)
MW-6
(993.18)*
DW-2
(996.45)*
MW-11
(994.72)
MW-12
(992.68)
MW-17
(994.89)
MW-15
(989.46)*
MW-3(995.35)
MW-8
(995.92)
DW-1
(995.56)DW-3
(995.87)MW-14
(995.62)
VEW-4
(993.29)*
MW-5
(NG)
MW-16
(995.13)993.00994.00995.00996.00993.
0
0
994.00995.00996.00FIGURE
3IMAGES:XREFS:X-TITLEX-BASEMAPPROJECTNAME: ----CITY:(Reqd) DIV/GROUP:(Reqd) DB:(Reqd) LD:(Opt) PIC:(Opt) PM:(Reqd) TM:(Opt) LYR:(Opt)ON=*;OFF=*REF*C:\Users\ymb2640\ACCDocs\Arcadis\AUS-GE-OLD RURAL HALL-WINSTON SALEM North Carolina\Project Files\2023\01-In Progress\01-DWG\GWM-2022H2-F03-CONTOURS.dwg LAYOUT: 3 SAVED: 2/13/2023 10:44 AM ACADVER: 24.1S (LMS TECH) PAGESETUP: ---- PLOTSTYLETABLE: ---- PLOTTED:2/13/2023 11:18 AM BY: Y M, BABUPOTENTIOMETRIC SURFACE MAP
DECEMBER 29, 2022
0 80'40'
APPROXIMATE SCALE 1 in. = 40 ft.
GROUNDWATER M&S REPORT - 2H2022
FORMER GANT OIL COMPANY #823
4325 OLD RURAL HALL RD,
WINSTON SALEM, NORTH CAROLINA 27105
LEGEND:
PROPERTY LINE
PRODUCT LINE
GROUNDWATER MONITOR WELL LOCATION
MONITORING WELL DESTROYED/PAVED OVER
GROUNDWATER ELEVATION IN FEET
GROUNDWATER ELEVATION CONTOUR(DASHED WHERE INFERRED)
GROUNDWATER FLOW DIRECTION
FEET ABOVE MEAN SEA LEVEL
NOT GAUGED
WELL NOT USED IN CONTOURING
MW-18
MW-4
(996.10)
(FT AMSL)
996.00
(NG)
*
SUNTRUSTBANK
EOPEOPEOP
EOPEOPEOP
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H
A
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L

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FORMER
USTs
STOREBLDG
4314 OLD
WALKERTOWNROAD BLDGOLD
WALKER
TOWN
RD

(
60
'
ROW
)CONLEY ST.RANCE TILLOTSON
4309 OLD WALKERTOWN RD
FORSTYH PIN #6837-85-6247.00
LEON POLLACK
4314 OLD WALKERTOWN RD
FORSTYH PIN #6837-85-7552.00
CANOPY #1
CANOPY #2
EOP
FORMER PUMPS
AND PIPING
MW-10
MW-13
MW-9
MW-16
MW-20
MW-19
MW-18
MW-7
MW-6
MW-11
MW-12
MW-17
MW-15
MW-3
MW-8
MW-14
MW-4
VEW-4DW-2
DW-1
DW-3(NS)
MW-5
(NS)
(NS)
(NS)
(NS)
(NS)
(NS)
(NS)
(NS)
(NS)
(NS)
(NS)
(NS)
(NS)
(NS)
(NS)
(NS)
(NS)
(NS)
(NS)
NOTES:
1. ALL DATA REPORTED IN MICROGRAMS PER LITER
(mg/L).
2.BOLD = CONCENTRATION DETECTED ABOVE NC
GCL STANDARD.
3. ALL LOCATIONS ARE APPROXIMATE.
4. (NS) = NOT SAMPLED
5. NC GCL STANDARDS = NORTH CAROLINA GROSS
CONTAMINANT LEVELS FOR GROUNDWATER
6. BDL = BELOW DETECTION LIMIT
7. ANALYTICAL RESULTS ONLY SHOWN FOR WELLS
THAT EXCEED GCL STANDARD.
FIGURE
4IMAGES:XREFS:X-TITLEX-BASEMAPPROJECTNAME: ----CITY:(Reqd) DIV/GROUP:(Reqd) DB:(Reqd) LD:(Opt) PIC:(Opt) PM:(Reqd) TM:(Opt) LYR:(Opt)ON=*;OFF=*REF*C:\Users\ymb2640\ACCDocs\Arcadis\AUS-GE-OLD RURAL HALL-WINSTON SALEM North Carolina\Project Files\2023\01-In Progress\01-DWG\GWM-2022H2-F04-ANALYTES.dwg LAYOUT: 4 SAVED: 2/13/2023 11:18 AM ACADVER: 24.1S (LMS TECH) PAGESETUP: ---- PLOTSTYLETABLE: ---- PLOTTED:2/13/2023 11:19 AM BY: Y M, BABUGROUNDWATER ANALYTICAL MAP
DECEMBER 2021 TO DECEMBER 2022
0 80'40'
APPROXIMATE SCALE 1 in. = 40 ft.
GROUNDWATER M&S REPORT - 2H2022
FORMER GANT OIL COMPANY #823
4325 OLD RURAL HALL RD,
WINSTON SALEM, NORTH CAROLINA 27105
LEGEND:
PROPERTY LINE
PRODUCT LINE
GROUNDWATER MONITOR WELL LOCATION
MONITORING WELL DESTROYED/PAVED OVER
DEEP MONITORING WELL LOCATION
VAPOR EXTRACTION WELL LOCATION
MW-18
MW-4
VEW-4
DW-3
Sample ID
COC
Benzene 5,000
1,2-Dibromoethane (EDB) 50
NC GCL Groundwater Standard (µg/l)
MW-15
Date 12/20/2021 6/7/2022 12/29/2022
Benzene 6,460 8,330 4,760
EDB BDL 94.1 BDL
SUNTRUSTBANK
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EOPEOPEOP
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H
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L

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FORMER
USTs
STOREBLDG
4314 OLD
WALKERTOWNROAD BLDGOLD
WALKER
TOWN
RD

(
60
'
ROW
)CONLEY ST.RANCE TILLOTSON
4309 OLD WALKERTOWN RD
FORSTYH PIN #6837-85-6247.00
LEON POLLACK
4314 OLD WALKERTOWN RD
FORSTYH PIN #6837-85-7552.00
CANOPY #1
CANOPY #2
EOP
FORMER PUMPS
AND PIPING
MW-4
VEW-4
(NS)
DW-2
(NS)
DW-1
(NS)DW-3
(NS)
MW-10
(NS)
MW-13
(NS)
MW-9(NS)
MW-16
(NS)
MW-20
(NS)
MW-19
(NS)
MW-18
(NS)
MW-7
(NS)
MW-6
(NS)
MW-11
(NS)
MW-12(NS)
MW-17(NS)
MW-15
(4,760)
MW-3
(NS)
MW-8
(NS)
MW-14
(NS)
MW-5
(NS)
FIGURE
5IMAGES:XREFS:X-TITLEX-BASEMAPPROJECTNAME: ----CITY:(Reqd) DIV/GROUP:(Reqd) DB:(Reqd) LD:(Opt) PIC:(Opt) PM:(Reqd) TM:(Opt) LYR:(Opt)ON=*;OFF=*REF*C:\Users\ymb2640\ACCDocs\Arcadis\AUS-GE-OLD RURAL HALL-WINSTON SALEM North Carolina\Project Files\2023\01-In Progress\01-DWG\GWM-2022H2-F05-BENZENE.dwg LAYOUT: 5 SAVED: 2/13/2023 11:21 AM ACADVER: 24.1S (LMS TECH) PAGESETUP: ---- PLOTSTYLETABLE: ---- PLOTTED:2/13/2023 11:21 AM BY: Y M, BABUBENZENE CONCENTRATION MAP
DECEMBER 29, 2022
0 80'40'
APPROXIMATE SCALE 1 in. = 40 ft.
GROUNDWATER M&S REPORT - 2H2022
FORMER GANT OIL COMPANY #823
4325 OLD RURAL HALL RD,
WINSTON SALEM, NORTH CAROLINA 27105
LEGEND:
PROPERTY LINE
PRODUCT LINE
GROUNDWATER MONITOR WELL LOCATION
MONITORING WELL DESTROYED/PAVED OVER
DEEP MONITORING WELL LOCATION
VAPOR EXTRACTION WELL LOCATION
BENZENE CONCENTRATION IN MICROGRAMS
PER LITER (mg/L)
NOT SAMPLED
MW-18
MW-4
(4,760)
(NS)
VEW-4
DW-3

APPENDIX A

Historical Groundwater Elevation Data
Appendix A - Historical Groundwater Elevation Data
Groundwater Monitoring and Sampling Report - 2H2022
Former Gant Oil Company #823
4325 Old Rural Hall Road,
Winston-Salem, North Carolina
Well ID Date TOC Elevation
(feet)
Depth to LNAPL
(feet btoc)
Depth to
Groundwater
(feet btoc)
LNAPL
Thickness (feet)
Groundwater
Elevation (feet)
4/30-5/1/2003 1,005.00 NP 19.75 NP 985.25
5/4/2003 1,005.00 NP 19.75 NP 985.25
9/24/2003 1,005.00 NP 18.05 NP 986.95
2/27/2004 1,005.00 NP 18.03 NP 986.97
2/8/2012 1,005.00 NP 17.59 NP 987.41
10/13/2016 1,005.00
5/17/2017 1,005.00
10/25/2017 1,005.00
5/31/2018 1,005.00
5/26/2020 1,005.00
12/10/2020 1,005.00
7/16/2021 1,005.00
12/20/2021 1,005.00
4/30-5/1/2003 1,005.22 NP 20.50 NP 984.72
5/4/2003 1,005.22 NP 20.50 NP 984.72
9/24/2003 1,005.22 NP 18.38 NP 986.84
2/27/2004 1,005.22 NP 18.41 NP 986.81
2/8/2012 1,005.22 NP 18.23 NP 986.99
10/13/2016 1,005.41
5/17/2017 1,005.41
10/25/2017 1,005.41
5/31/2018 1,005.41
5/26/2020 1,005.41
12/10/2020 1,005.41
7/16/2021 1,005.41
12/20/2021 1,005.41
4/30-5/1/2003 1,003.72 NP 18.78 NP 984.94
5/4/2003 1,003.72 NP 18.78 NP 984.94
9/24/2003 1,003.72 NP 16.78 NP 986.94
2/27/2004 1,003.72 NP 17.03 NP 986.69
2/8/2012 1,003.72 NP 16.99 NP 986.73
10/13/2016 1,003.83 NP 15.57 NP 988.26
5/17/2017 1,003.83 NP 15.68 NP 988.15
10/25/2017 1,003.83 NP 16.45 NP 987.38
5/31/2018 1,003.83 NP 16.31 NP 987.52
6/15/2019 1,003.83 NP NM NP NM
12/4/2019 1,003.83 NP 13.35 NP 990.48
5/26/2020 1,003.83 NP 11.75 NP 992.08
12/10/2020 1,003.83 NP 11.20 NP 992.63
7/16/2021 1,003.83 NP 11.44 NP 992.39
12/20/2021 1,003.83 NP 13.10 NP 990.73
6/7/2022 1,003.83 NP 13.22 NP 990.61
12/29/2022 1,003.83 NP 8.48 NP 995.35
9/24/2003 1,007.41 NP 20.00 NP 987.41
2/27/2004 1,007.41 NP 19.95 NP 987.46
2/8/2012 1,007.41 NP 19.70 NP 987.71
10/13/2016 1,006.90
5/17/2017 1,006.90
10/25/2017 1,006.90
5/31/2018 1,006.90
5/26/2020 1,006.90
12/10/2020 1,006.90
7/16/2021 1,006.90
12/20/2021 1,006.90
Paved Over
Paved Over
Destroyed
Destroyed
Destroyed
Destroyed
Paved Over
Paved Over
Destroyed
Destroyed
Paved Over
Paved Over
Paved Over
Destroyed
Destroyed
MW-1
MW-2
MW-3
MW-4
Destroyed
Destroyed
Destroyed
Destroyed
Destroyed
Destroyed
Destroyed
Paved Over
Destroyed
Page 1 of 6
Appendix A - Historical Groundwater Elevation Data
Groundwater Monitoring and Sampling Report - 2H2022
Former Gant Oil Company #823
4325 Old Rural Hall Road,
Winston-Salem, North Carolina
Well ID Date TOC Elevation
(feet)
Depth to LNAPL
(feet btoc)
Depth to
Groundwater
(feet btoc)
LNAPL
Thickness (feet)
Groundwater
Elevation (feet)
9/24/2003 1,011.86 NP 24.45 NP 987.41
2/27/2004 1,011.86 NP 24.54 NP 987.32
2/8/2012 1,011.86 NP 24.62 NP 987.24
10/13/2016 1,011.32 NP 20.87 NP 990.45
5/17/2017 1,011.32 NP 23.29 NP 988.03
10/25/2017 1,011.32 NP 23.67 NP 987.65
5/31/2018 1,011.32 NP 23.78 NP 987.54
6/15/2019 1,011.32 NP 20.60 NP 990.72
12/6/2019 1,011.32
5/26/2020 1,011.32
12/10/2020 1,011.32
7/16/2021 1,011.32
12/20/2021 1,011.32
6/7/2022 1,011.32 NP 20.57 NP 990.75
12/29/2022 1,011.32
9/24/2003 1,008.75 NP 21.55 NP 987.20
2/27/2004 1,008.75 NP 21.77 NP 986.98
2/8/2012 1,008.75 NP 21.88 NP 986.87
10/13/2016 1,008.33 NP 19.96 NP 988.37
5/17/2017 1,008.33 NP 20.58 NP 987.75
10/25/2017 1,008.33 NP 21.11 NP 987.22
5/31/2018 1,008.33 NP 21.12 NP 987.21
6/15/2019 1,008.33 NP 19.20 NP 989.13
12/4/2019 1,008.33 NP 15.40 NP 992.93
5/26/2020 1,008.33 NP 16.70 NP 991.63
12/10/2020 1,008.33 NP 17.25 NP 991.08
7/16/2021 1,008.33 NP 16.35 NP 991.98
12/20/2021 1,008.33 NP 18.25 NP 990.08
6/7/2022 1,008.33 NP 18.07 NP 990.26
12/29/2022 1,008.33 NP 15.15 NP 993.18
9/24/2003 1,009.34 NP 22.08 NP 987.26
2/27/2004 1,009.34 NP 22.42 NP 986.92
2/8/2012 1,009.34 NP 22.58 NP 986.76
5/17/2017 1,008.86 NP 21.25 NP 987.61
10/25/2017 1,008.86 NP 21.95 NP 986.91
10/13/2016 1,008.86 NP 21.20 NP 987.66
5/31/2018 1,008.86 NP 21.85 NP 987.01
6/15/2019 1,008.86 NP 18.10 NP 990.76
12/6/2019 1,008.86 NP 19.20 NP 989.66
5/26/2020 1,008.86 NP 17.52 NP 991.34
12/10/2020 1,008.86 NP 16.86 NP 992.00
7/16/2021 1,008.86 NP 17.10 NP 991.76
12/20/2021 1,008.86 NP 19.10 NP 989.76
6/7/2022 1,008.86 NP 18.87 NP 989.99
12/29/2022 1,008.86 NP 15.27 NP 993.59
9/24/2003 1,002.86 NP 14.47 NP 988.39
2/27/2004 1,002.86 NP 15.06 NP 987.80
5/17/2017 1,002.37 NP 13.42 NP 988.95
10/25/2017 1,002.37 NP 14.91 NP 987.46
10/13/2016 1,002.37 NP 13.70 NP 988.67
5/31/2018 1,002.37 NP 14.00 NP 988.37
6/15/2019 1,002.37 NP NM NP NM
12/4/2019 1,002.37 NP 11.10 NP 991.27
5/26/2020 1,002.37 NP 10.11 NP 992.26
12/10/2020 1,002.37 NP 6.50 NP 995.87
7/16/2021 1,002.37 NP 8.95 NP 993.42
12/20/2021 1,002.37 NP 10.85 NP 991.52
6/7/2022 1,002.37 NP 11.40 NP 990.97
12/29/2022 1,002.37 NP 6.45 NP 995.92
MW-7
Unable to locate
MW-5
MW-6
Destroyed
MW-8
Destroyed
Unable to locate
Destroyed
Unable to locate
Page 2 of 6
Appendix A - Historical Groundwater Elevation Data
Groundwater Monitoring and Sampling Report - 2H2022
Former Gant Oil Company #823
4325 Old Rural Hall Road,
Winston-Salem, North Carolina
Well ID Date TOC Elevation
(feet)
Depth to LNAPL
(feet btoc)
Depth to
Groundwater
(feet btoc)
LNAPL
Thickness (feet)
Groundwater
Elevation (feet)
9/24/2003 1,002.72 NP 14.51 NP 988.21
2/27/2004 1,002.72 NP 14.78 NP 987.94
2/8/2012 1,002.72 NP 14.28 NP 988.44
5/17/2017 1,001.95 NP 12.65 NP 989.30
10/25/2017 1,001.95 NP 14.39 NP 987.56
10/13/2016 1,001.95 NP 13.02 NP 988.93
5/31/2018 1,001.95 NP 13.34 NP 988.61
6/15/2019 1,001.95 NP NM NP NM
12/4/2019 1,001.95 NP 9.40 NP 992.55
5/26/2020 1,001.95 NP 7.85 NP 994.10
12/10/2020 1,001.95 NP 7.85 NP 994.10
7/16/2021 1,001.95 NP 6.87 NP 995.08
12/20/2021 1,001.95 NP 10.05 NP 991.90
6/7/2022 1,001.95
12/29/2022 1,001.95 NP 4.87 NP 997.08
9/24/2003 1,005.36 NP 17.87 NP 987.49
2/27/2004 1,005.36 NP 17.70 NP 987.66
2/8/2012 1,005.36 NP 17.26 NP 988.10
5/17/2017 1,004.86 NP 15.43 NP 989.43
10/25/2017 1,004.86 NP 16.91 NP 987.95
10/13/2016 1,004.86 NP 15.59 NP 989.27
5/31/2018 1,004.86 NP 16.60 NP 988.26
6/15/2019 1,004.86 NP NM NP NM
12/5/2019 1,004.86 NP 12.55 NP 992.31
5/26/2020 1,004.86 NP 10.94 NP 993.92
12/10/2020 1,004.86 NP 10.72 NP 994.14
7/16/2021 1,004.86 NP 10.64 NP 994.22
12/20/2021 1,004.86 NP 13.21 NP 991.65
6/7/2022 1,004.86 NP 12.70 NP 992.16
12/29/2022 1,004.86 NP 8.76 NP 996.10
2/27/2004 1,010.52 NP 23.85 NP 986.67
2/8/2012 1,010.53 NP 23.82 NP 986.71
10/13/2016 1,010.12 NP 21.83 SHEEN 988.29
5/17/2017 1,010.12 NP 22.63 0.02'987.49
10/25/2017 1,010.12 NP 23.24 0.27'986.88
5/31/2018 1,010.12 NM NM SHEEN -
6/15/2019 1,010.12 NP 20.86 NP 989.26
12/5/2019 1,010.12 NP 20.00 NP 990.12
5/26/2020 1,010.12 NP 19.21 NP 990.91
12/10/2020 1,010.12 NP 18.26 NP 991.86
7/16/2021 1,010.12 NP 18.17 NP 991.95
12/20/2021 1,010.12 NP 19.87 NP 990.25
6/7/2022 1,010.12 NP 20.40 NP 989.72
12/29/2022 1,010.12 NP 15.40 NP 994.72
2/27/2004 1,011.89 NP 25.58 NP 986.31
2/8/2012 1,011.96 NP 25.93 NP 986.03
10/13/2016 1,011.51 NP 24.29 NP 987.22
5/17/2017 1,011.51 NP 24.46 NP 987.05
10/25/2017 1,011.51 NP 25.10 NP 986.41
5/31/2018 1,011.51 NP 25.00 NP 986.51
6/15/2019 1,011.51 NP 21.80 NP 989.71
12/5/2019 1,011.51 NP 22.60 NP 988.91
5/26/2020 1,011.51 NP 20.97 NP 990.54
12/10/2020 1,011.51 NP 21.15 NP 990.36
7/16/2021 1,011.51 NP 20.25 NP 991.26
12/20/2021 1,011.51 NP 22.50 NP 989.01
6/7/2022 1,011.51 NP 22.24 NP 989.27
12/29/2022 1,011.51 NP 18.83 NP 992.68
MW-10
MW-9
Unable to locate
MW-12
MW-11
Page 3 of 6
Appendix A - Historical Groundwater Elevation Data
Groundwater Monitoring and Sampling Report - 2H2022
Former Gant Oil Company #823
4325 Old Rural Hall Road,
Winston-Salem, North Carolina
Well ID Date TOC Elevation
(feet)
Depth to LNAPL
(feet btoc)
Depth to
Groundwater
(feet btoc)
LNAPL
Thickness (feet)
Groundwater
Elevation (feet)
10/13/2016 1,004.81 NP 15.83 NP 988.98
5/17/2017 1,004.81 NP 15.96 NP 988.85
10/25/2017 1,004.81 NP 16.97 NP 987.84
5/31/2018 1,004.81 NP 16.73 NP 988.08
6/15/2019 1,004.81 NP 13.35 NP 991.46
12/5/2019 1,004.81 NP 13.40 NP 991.41
5/26/2020 1,004.81 NP 11.63 NP 993.18
12/10/2020 1,004.81 NP 11.16 NP 993.65
7/16/2021 1,004.81 NP 11.20 NP 993.61
12/20/2021 1,004.81 NP 13.57 NP 991.24
6/7/2022 1,004.81 NP 13.14 NP 991.67
12/29/2022 1,004.81 NP 9.85 NP 994.96
10/13/2016 1,005.90 NP 16.96 NP 988.94
5/17/2017 1,005.90 NP 17.63 NP 988.27
10/25/2017 1,005.90 NP 18.12 NP 987.78
5/31/2018 1,005.90 NP 18.18 NP 987.72
6/15/2019 1,005.90 NP 14.70 NP 991.20
12/4/2019 1,005.90 NP 15.15 NP 990.75
5/26/2020 1,005.90 NP 13.77 NP 992.13
12/11/2020 1,005.90 NP 13.05 NP 992.85
7/16/2021 1,005.90 NP 12.84 NP 993.06
12/20/2021 1,005.90 NP 14.96 NP 990.94
6/7/2022 1,005.90 NP 14.83 NP 991.07
12/29/2022 1,005.90 NP 10.28 NP 995.62
10/13/2016 1,005.46 NP 16.98 NP 988.48
5/17/2017 1,005.46 NP 17.42 NP 988.04
10/25/2017 1,005.46 NP 17.98 NP 987.48
5/31/2018 1,005.46 NP 18.00 NP 987.46
6/15/2019 1,005.46 NP 14.41 NP 991.05
12/4/2019 1,005.46 NP 14.94 NP 990.52
5/26/2020 1,005.46 NP 13.53 NP 991.93
12/10/2020 1,005.46 NP 12.95 NP 992.51
7/16/2021 1,005.46 NP 13.02 NP 992.44
12/20/2021 1,005.46 NP 15.00 NP 990.46
6/7/2022 1,005.46 NP 14.84 NP 990.62
12/29/2022 1,005.46 NP 16.00 NP 989.46
10/13/2016 1,009.78 NP 19.41 NP 990.37
5/17/2017 1,009.78 NP 21.83 NP 987.95
10/25/2017 1,009.78 NP 22.32 NP 987.46
5/31/2018 1,009.78 NP 22.36 NP 987.42
6/15/2019 1,009.78 NP NM NP NM
12/6/2019 1,009.78 NP 19.70 NP 990.08
5/26/2020 1,009.78 NP 18.17 NP 991.61
12/10/2020 1,009.78 NP 17.80 NP 991.98
7/16/2021 1,009.78 NP 16.77 NP 993.01
12/20/2021 1,009.78 NP 20.00 NP 989.78
6/7/2022 1,009.78 NP 19.32 NP 990.46
12/29/2022 1,009.78 NP 14.65 NP 995.13
10/13/2016 1,009.33 NP 20.44 NP 988.89
5/17/2017 1,009.33 NP 21.32 NP 988.01
10/25/2017 1,009.33 NP 21.58 NP 987.75
5/31/2018 1,009.33 NP 21.88 NP 987.45
6/15/2019 1,009.33 NP 18.00 NP 991.33
12/6/2019 1,009.33 NP 19.10 NP 990.23
5/26/2020 1,009.33 NP 17.53 NP 991.80
12/10/2020 1,009.33 NP 16.83 NP 992.50
7/16/2021 1,009.33 NP 16.85 NP 992.48
12/20/2021 1,009.33 NP 19.00 NP 990.33
6/7/2022 1,009.33 NP 18.65 NP 990.68
12/29/2022 1,009.33 NP 14.44 NP 994.89
MW-16
MW-14
MW-13
MW-17
MW-15
Page 4 of 6
Appendix A - Historical Groundwater Elevation Data
Groundwater Monitoring and Sampling Report - 2H2022
Former Gant Oil Company #823
4325 Old Rural Hall Road,
Winston-Salem, North Carolina
Well ID Date TOC Elevation
(feet)
Depth to LNAPL
(feet btoc)
Depth to
Groundwater
(feet btoc)
LNAPL
Thickness (feet)
Groundwater
Elevation (feet)
10/13/2016 1,011.46 NP 24.70 NP 986.76
5/17/2017 1,011.46 NP 24.54 NP 986.92
10/25/2017 1,011.46 NP 25.64 NP 985.82
5/31/2018 1,011.46 NP 25.22 NP 986.24
6/15/2019 1,011.46 NP 22.20 NP 989.26
12/6/2019 1,011.46 NP 23.00 NP 988.46
5/26/2020 1,011.46 NP 21.33 NP 990.13
12/11/2020 1,011.46 NP 20.65 NP 990.81
7/16/2021 1,011.46 NP 20.88 NP 990.58
12/20/2021 1,011.46 NP 22.95 NP 988.51
6/7/2022 1,011.46 NP 22.85 NP 988.61
12/29/2022 1,011.46 NP 17.77 NP 993.69
10/13/2016 1,011.36 NP 23.99 NP 987.37
5/17/2017 1,011.36 NP 24.10 NP 987.26
10/25/2017 1,011.36 NP 25.05 NP 986.31
5/31/2018 1,011.36 NP 24.80 NP 986.56
6/15/2019 1,011.36 NP 21.80 NP 989.56
12/6/2019 1,011.36 NP 22.50 NP 988.86
5/26/2020 1,011.36 NP 20.90 NP 990.46
12/11/2020 1,011.36 NP 20.18 NP 991.18
7/16/2021 1,011.36 NP 20.25 NP 991.11
12/20/2021 1,011.36 NP 22.48 NP 988.88
6/7/2022 1,011.36 NP 22.36 NP 989.00
12/29/2022 1,011.36 NP 18.16 NP 993.20
10/13/2016 1,011.40 NP 23.86 NP 987.54
5/17/2017 1,011.40 NP 24.05 NP 987.35
10/25/2017 1,011.40 NP 25.12 NP 986.28
5/31/2018 1,011.40 NP 24.74 NP 986.66
6/15/2019 1,011.40 NP 21.80 NP 989.60
12/6/2019 1,011.40 NP 22.45 NP 988.95
5/26/2020 1,011.40 NP 20.85 NP 990.55
12/10/2020 1,011.40 NP 20.42 NP 990.98
7/16/2021 1,011.40 NP 20.44 NP 990.96
12/20/2021 1,011.40 NP 22.40 NP 989.00
6/7/2022 1,011.40 NP 22.38 NP 989.02
12/29/2022 1,011.40 NP 19.72 NP 991.68
9/22/2003 1,006.30 NP 18.78 NP 987.52
2/27/2004 1,006.30 NP 18.93 NP 987.37
2/8/2012 1,006.30 NP 18.80 NP 987.50
5/17/2017 1,005.91 NP 17.50 NP 988.41
10/25/2017 1,005.91 NP 18.15 NP 987.76
10/13/2016 1,005.91 NP 16.86 NP 989.05
5/31/2018 1,005.91 NP 18.11 NP 987.80
6/15/2019 1,005.91 NP 15.02 NP 990.89
12/4/2019 1,005.91 NP 15.00 NP 990.91
5/26/2020 1,005.91 NP 13.46 NP 992.45
12/11/2020 1,005.91 NP 12.90 NP 993.01
7/16/2021 1,005.91 NP 12.83 NP 993.08
12/20/2021 1,005.91 NP 14.95 NP 990.96
6/7/2022 1,005.91 NP 14.71 NP 991.20
12/29/2022 1,005.91 NP 10.35 NP 995.56
DW-1
MW-20
MW-19
MW-18
Page 5 of 6
Appendix A - Historical Groundwater Elevation Data
Groundwater Monitoring and Sampling Report - 2H2022
Former Gant Oil Company #823
4325 Old Rural Hall Road,
Winston-Salem, North Carolina
Well ID Date TOC Elevation
(feet)
Depth to LNAPL
(feet btoc)
Depth to
Groundwater
(feet btoc)
LNAPL
Thickness (feet)
Groundwater
Elevation (feet)
2/27/2004 1,009.11 NP 22.00 NP 987.11
2/8/2012 1,009.06 NP 22.00 NP 987.06
5/17/2017 1,008.65 NP 20.80 NP 987.85
10/25/2017 1,008.65 NP 21.38 NP 987.27
10/13/2016 1,008.65 NP 19.96 NP 988.69
5/31/2018 1,008.65 NP 21.36 NP 987.29
6/15/2019 1,008.65 NP 13.50 NP 995.15
12/4/2019 1,008.65 NP 18.70 NP 989.95
5/26/2020 1,008.65 NP 17.13 NP 991.52
12/10/2020 1,008.65 NP 16.75 NP 991.90
7/16/2021 1,008.65 NP 15.98 NP 992.67
12/20/2021 1,008.65 NP 19.05 NP 989.60
6/7/2022 1,008.65 NP 17.99 NP 990.66
12/29/2022 1,008.65 NP 12.20 NP 996.45
2/27/2004 1,005.87 NP 19.44 NP 986.43
2/8/2012 1,006.43 NP 17.10 NP 989.33
5/17/2017 1,006.04 NP 18.03 NP 988.01
10/25/2017 1,006.04 NP 18.90 NP 987.14
10/13/2016 1,006.04 NP 17.59 NP 988.45
5/31/2018 1,006.04 NP 18.68 NP 987.36
6/15/2019 1,006.04 NP 16.43 NP 989.61
12/4/2019 1,006.04 NP 15.40 NP 990.64
5/26/2020 1,006.04 NP 13.90 NP 992.14
12/10/2020 1,006.04 NP 13.50 NP 992.54
7/16/2021 1,006.04 NP 13.65 NP 992.39
12/20/2021 1,006.04 NP 15.32 NP 990.72
6/7/2022 1,006.04 NP 15.45 NP 990.59
12/29/2022 1,006.04 NP 10.17 NP 995.87
10/13/2016 1,005.93 NP 19.90 NP 986.03
5/17/2017 1,005.93 NP 19.85 NP 986.08
10/25/2017 1,005.93 NP 21.58 NP 984.35
5/31/2018 1,005.93 NP 20.45 NP 985.48
6/15/2019 1,005.93 NP 18.00 NP 987.93
12/5/2019 1,005.93 NP 17.35 NP 988.58
5/26/2020 1,005.93 NP 17.35 NP 988.58
12/10/2020 1,005.93 NP 15.40 NP 990.53
7/16/2021 1,005.93 NP 15.95 NP 989.98
12/20/2021 1,005.93 NP 18.10 NP 987.83
6/7/2022 1,005.93 NP 17.62 NP 988.31
12/29/2022 1,005.93 NP 12.64 NP 993.29
Notes:
TOC = Top of casing
btoc = below top of casing
NP = No product indicated
NM = not measured
LNAPL = light non-aqueous phase liquid
All measurements taken in feet and based on an arbitrary benchmark of 100 feet at MW-9.
VEW-4
DW-3
DW-2
Page 6 of 6

APPENDIX B

Laboratory Analytical Report and Chain-of-Custody Record – December 29, 2022
#=CL#
January 09, 2023
LIMS USE: FR - HARDIK PATEL
LIMS OBJECT ID: 92644831
92644831
Project:
Pace Project No.:
RE:
Hardik Patel
Arcadis
5420 Wade Park Blvd
Suite 350
Raleigh, NC 27607
GE ORH
Dear Hardik Patel:
Enclosed are the analytical results for sample(s) received by the laboratory on January 03, 2023. The results relate only to
the samples included in this report. Results reported herein conform to the applicable TNI/NELAC Standards and the
laboratory's Quality Manual, where applicable, unless otherwise noted in the body of the report.
The test results provided in this final report were generated by each of the following laboratories within the Pace Network:
• Pace Analytical Services - Charlotte
If you have any questions concerning this report, please feel free to contact me.
Sincerely,
Angela Baioni
[e-mail]
Project Manager
[phone]
Enclosures
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 1 of 22
#=CP#
CERTIFICATIONS
Pace Project No.:
Project:
92644831
GE ORH
Pace Analytical Services Charlotte
South Carolina Laboratory ID: 99006
9800 Kincey Ave. Ste 100, Huntersville, NC 28078
North Carolina Drinking Water Certification #: 37706
North Carolina Field Services Certification #: 5342
North Carolina Wastewater Certification #: 12
South Carolina Laboratory ID: 99006
South Carolina Certification #: 99006001
South Carolina Drinking Water Cert. #: 99006003
Florida/NELAP Certification #: E87627
Kentucky UST Certification #: 84
Louisiana DoH Drinking Water #: LA029
Virginia/VELAP Certification #: 460221
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 2 of 22
#=SA#
SAMPLE ANALYTE COUNT
Pace Project No.:
Project:
92644831
GE ORH
Lab ID Sample ID Method
Analytes
Reported LaboratoryAnalysts
92644831001 MW-15 EPA 8260D 63 PASI-CJJK
92644831002 TRIP BLANK EPA 8260D 63 PASI-CCL
PASI-C = Pace Analytical Services - Charlotte
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 3 of 22
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92644831
GE ORH
Sample:MW-15 Lab ID:92644831001 Collected:12/29/22 15:15 Received:01/03/23 08:30 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: EPA 8260D
Pace Analytical Services - Charlotte
8260D MSV Low Level
Acetone 1360 ug/L 01/04/23 19:00 67-64-1125050
Benzene 4760 ug/L 01/04/23 19:00 71-43-250.0 50
Bromobenzene ND ug/L 01/04/23 19:00 108-86-150.0 50
Bromochloromethane ND ug/L 01/04/23 19:00 74-97-550.0 50
Bromodichloromethane ND ug/L 01/04/23 19:00 75-27-450.0 50
Bromoform ND ug/L 01/04/23 19:00 75-25-250.0 50
Bromomethane ND ug/L 01/04/23 19:00 74-83-910050
2-Butanone (MEK)756 ug/L 01/04/23 19:00 78-93-325050
Carbon tetrachloride ND ug/L 01/04/23 19:00 56-23-550.0 50
Chlorobenzene ND ug/L 01/04/23 19:00 108-90-750.0 50
Chloroethane ND ug/L 01/04/23 19:00 75-00-3 v150.0 50
Chloroform ND ug/L 01/04/23 19:00 67-66-350.0 50
Chloromethane ND ug/L 01/04/23 19:00 74-87-350.0 50
2-Chlorotoluene 203 ug/L 01/04/23 19:00 95-49-850.0 50
4-Chlorotoluene ND ug/L 01/04/23 19:00 106-43-450.0 50
1,2-Dibromo-3-chloropropane ND ug/L 01/04/23 19:00 96-12-810050
Dibromochloromethane ND ug/L 01/04/23 19:00 124-48-150.0 50
1,2-Dibromoethane (EDB)ND ug/L 01/04/23 19:00 106-93-450.0 50
Dibromomethane ND ug/L 01/04/23 19:00 74-95-350.0 50
1,2-Dichlorobenzene ND ug/L 01/04/23 19:00 95-50-150.0 50
1,3-Dichlorobenzene ND ug/L 01/04/23 19:00 541-73-150.0 50
1,4-Dichlorobenzene ND ug/L 01/04/23 19:00 106-46-750.0 50
Dichlorodifluoromethane ND ug/L 01/04/23 19:00 75-71-850.0 50
1,1-Dichloroethane ND ug/L 01/04/23 19:00 75-34-350.0 50
1,2-Dichloroethane 142 ug/L 01/04/23 19:00 107-06-250.0 50
1,1-Dichloroethene ND ug/L 01/04/23 19:00 75-35-450.0 50
cis-1,2-Dichloroethene ND ug/L 01/04/23 19:00 156-59-250.0 50
trans-1,2-Dichloroethene ND ug/L 01/04/23 19:00 156-60-550.0 50
1,2-Dichloropropane ND ug/L 01/04/23 19:00 78-87-550.0 50
1,3-Dichloropropane ND ug/L 01/04/23 19:00 142-28-950.0 50
2,2-Dichloropropane ND ug/L 01/04/23 19:00 594-20-750.0 50
1,1-Dichloropropene ND ug/L 01/04/23 19:00 563-58-650.0 50
cis-1,3-Dichloropropene ND ug/L 01/04/23 19:00 10061-01-550.0 50
trans-1,3-Dichloropropene ND ug/L 01/04/23 19:00 10061-02-650.0 50
Diisopropyl ether 208 ug/L 01/04/23 19:00 108-20-350.0 50
Ethylbenzene 1380 ug/L 01/04/23 19:00 100-41-450.0 50
Hexachloro-1,3-butadiene ND ug/L 01/04/23 19:00 87-68-310050
2-Hexanone ND ug/L 01/04/23 19:00 591-78-625050
p-Isopropyltoluene ND ug/L 01/04/23 19:00 99-87-650.0 50
Methylene Chloride ND ug/L 01/04/23 19:00 75-09-225050
4-Methyl-2-pentanone (MIBK)ND ug/L 01/04/23 19:00 108-10-125050
Methyl-tert-butyl ether 837 ug/L 01/04/23 19:00 1634-04-450.0 50
Naphthalene 354 ug/L 01/04/23 19:00 91-20-350.0 50
Styrene ND ug/L 01/04/23 19:00 100-42-550.0 50
1,1,1,2-Tetrachloroethane ND ug/L 01/04/23 19:00 630-20-650.0 50
1,1,2,2-Tetrachloroethane ND ug/L 01/04/23 19:00 79-34-550.0 50
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 01/09/2023 12:45 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 4 of 22
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92644831
GE ORH
Sample:MW-15 Lab ID:92644831001 Collected:12/29/22 15:15 Received:01/03/23 08:30 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: EPA 8260D
Pace Analytical Services - Charlotte
8260D MSV Low Level
Tetrachloroethene ND ug/L 01/04/23 19:00 127-18-450.0 50
Toluene 9570 ug/L 01/04/23 19:00 108-88-350.0 50
1,2,3-Trichlorobenzene ND ug/L 01/04/23 19:00 87-61-650.0 50
1,2,4-Trichlorobenzene ND ug/L 01/04/23 19:00 120-82-150.0 50
1,1,1-Trichloroethane ND ug/L 01/04/23 19:00 71-55-650.0 50
1,1,2-Trichloroethane ND ug/L 01/04/23 19:00 79-00-550.0 50
Trichloroethene ND ug/L 01/04/23 19:00 79-01-650.0 50
Trichlorofluoromethane ND ug/L 01/04/23 19:00 75-69-450.0 50
1,2,3-Trichloropropane ND ug/L 01/04/23 19:00 96-18-450.0 50
Vinyl acetate ND ug/L 01/04/23 19:00 108-05-410050
Vinyl chloride ND ug/L 01/04/23 19:00 75-01-450.0 50
Xylene (Total)7360 ug/L 01/04/23 19:00 1330-20-750.0 50
m&p-Xylene 5250 ug/L 01/04/23 19:00 179601-23-110050
o-Xylene 2110 ug/L 01/04/23 19:00 95-47-650.0 50
Surrogates
4-Bromofluorobenzene (S)101 %01/04/23 19:00 460-00-470-130 50
1,2-Dichloroethane-d4 (S)105 %01/04/23 19:00 17060-07-070-130 50
Toluene-d8 (S)99 %01/04/23 19:00 2037-26-570-130 50
Sample:TRIP BLANK Lab ID:92644831002 Collected:12/30/22 00:00 Received:01/03/23 08:30 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: EPA 8260D
Pace Analytical Services - Charlotte
8260D MSV Low Level
Acetone ND ug/L 01/06/23 02:17 67-64-125.0 1
Benzene ND ug/L 01/06/23 02:17 71-43-21.0 1
Bromobenzene ND ug/L 01/06/23 02:17 108-86-11.0 1
Bromochloromethane ND ug/L 01/06/23 02:17 74-97-51.0 1
Bromodichloromethane ND ug/L 01/06/23 02:17 75-27-41.0 1
Bromoform ND ug/L 01/06/23 02:17 75-25-21.0 1
Bromomethane ND ug/L 01/06/23 02:17 74-83-92.0 1
2-Butanone (MEK)ND ug/L 01/06/23 02:17 78-93-35.0 1
Carbon tetrachloride ND ug/L 01/06/23 02:17 56-23-51.0 1
Chlorobenzene ND ug/L 01/06/23 02:17 108-90-71.0 1
Chloroethane ND ug/L 01/06/23 02:17 75-00-31.0 1
Chloroform 1.3 ug/L 01/06/23 02:17 67-66-3 C01.0 1
Chloromethane ND ug/L 01/06/23 02:17 74-87-31.0 1
2-Chlorotoluene ND ug/L 01/06/23 02:17 95-49-81.0 1
4-Chlorotoluene ND ug/L 01/06/23 02:17 106-43-41.0 1
1,2-Dibromo-3-chloropropane ND ug/L 01/06/23 02:17 96-12-82.0 1
Dibromochloromethane ND ug/L 01/06/23 02:17 124-48-11.0 1
1,2-Dibromoethane (EDB)ND ug/L 01/06/23 02:17 106-93-41.0 1
Dibromomethane ND ug/L 01/06/23 02:17 74-95-31.0 1
1,2-Dichlorobenzene ND ug/L 01/06/23 02:17 95-50-11.0 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 01/09/2023 12:45 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 5 of 22
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92644831
GE ORH
Sample:TRIP BLANK Lab ID:92644831002 Collected:12/30/22 00:00 Received:01/03/23 08:30 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: EPA 8260D
Pace Analytical Services - Charlotte
8260D MSV Low Level
1,3-Dichlorobenzene ND ug/L 01/06/23 02:17 541-73-11.0 1
1,4-Dichlorobenzene ND ug/L 01/06/23 02:17 106-46-71.0 1
Dichlorodifluoromethane ND ug/L 01/06/23 02:17 75-71-8 v21.0 1
1,1-Dichloroethane ND ug/L 01/06/23 02:17 75-34-31.0 1
1,2-Dichloroethane ND ug/L 01/06/23 02:17 107-06-21.0 1
1,1-Dichloroethene ND ug/L 01/06/23 02:17 75-35-41.0 1
cis-1,2-Dichloroethene ND ug/L 01/06/23 02:17 156-59-21.0 1
trans-1,2-Dichloroethene ND ug/L 01/06/23 02:17 156-60-51.0 1
1,2-Dichloropropane ND ug/L 01/06/23 02:17 78-87-51.0 1
1,3-Dichloropropane ND ug/L 01/06/23 02:17 142-28-91.0 1
2,2-Dichloropropane ND ug/L 01/06/23 02:17 594-20-71.0 1
1,1-Dichloropropene ND ug/L 01/06/23 02:17 563-58-61.0 1
cis-1,3-Dichloropropene ND ug/L 01/06/23 02:17 10061-01-51.0 1
trans-1,3-Dichloropropene ND ug/L 01/06/23 02:17 10061-02-61.0 1
Diisopropyl ether ND ug/L 01/06/23 02:17 108-20-31.0 1
Ethylbenzene ND ug/L 01/06/23 02:17 100-41-41.0 1
Hexachloro-1,3-butadiene ND ug/L 01/06/23 02:17 87-68-32.0 1
2-Hexanone ND ug/L 01/06/23 02:17 591-78-65.0 1
p-Isopropyltoluene ND ug/L 01/06/23 02:17 99-87-61.0 1
Methylene Chloride ND ug/L 01/06/23 02:17 75-09-25.0 1
4-Methyl-2-pentanone (MIBK)ND ug/L 01/06/23 02:17 108-10-15.0 1
Methyl-tert-butyl ether ND ug/L 01/06/23 02:17 1634-04-41.0 1
Naphthalene ND ug/L 01/06/23 02:17 91-20-31.0 1
Styrene ND ug/L 01/06/23 02:17 100-42-51.0 1
1,1,1,2-Tetrachloroethane ND ug/L 01/06/23 02:17 630-20-61.0 1
1,1,2,2-Tetrachloroethane ND ug/L 01/06/23 02:17 79-34-51.0 1
Tetrachloroethene ND ug/L 01/06/23 02:17 127-18-41.0 1
Toluene ND ug/L 01/06/23 02:17 108-88-31.0 1
1,2,3-Trichlorobenzene ND ug/L 01/06/23 02:17 87-61-61.0 1
1,2,4-Trichlorobenzene ND ug/L 01/06/23 02:17 120-82-11.0 1
1,1,1-Trichloroethane ND ug/L 01/06/23 02:17 71-55-61.0 1
1,1,2-Trichloroethane ND ug/L 01/06/23 02:17 79-00-51.0 1
Trichloroethene ND ug/L 01/06/23 02:17 79-01-61.0 1
Trichlorofluoromethane ND ug/L 01/06/23 02:17 75-69-41.0 1
1,2,3-Trichloropropane ND ug/L 01/06/23 02:17 96-18-41.0 1
Vinyl acetate ND ug/L 01/06/23 02:17 108-05-42.0 1
Vinyl chloride ND ug/L 01/06/23 02:17 75-01-41.0 1
Xylene (Total)ND ug/L 01/06/23 02:17 1330-20-71.0 1
m&p-Xylene ND ug/L 01/06/23 02:17 179601-23-12.0 1
o-Xylene ND ug/L 01/06/23 02:17 95-47-61.0 1
Surrogates
4-Bromofluorobenzene (S)95 %01/06/23 02:17 460-00-470-130 1
1,2-Dichloroethane-d4 (S)106 %01/06/23 02:17 17060-07-070-130 1
Toluene-d8 (S)101 %01/06/23 02:17 2037-26-570-130 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 01/09/2023 12:45 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 6 of 22
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92644831
GE ORH
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
QC Batch:
QC Batch Method:
Analysis Method:
Analysis Description:
747306
EPA 8260D
EPA 8260D
8260D MSV Low Level
Laboratory:Pace Analytical Services - Charlotte
Associated Lab Samples:92644831001
Parameter Units
Blank
Result
Reporting
Limit Qualifiers
METHOD BLANK:3885119
Associated Lab Samples:92644831001
Matrix:Water
Analyzed
1,1,1,2-Tetrachloroethane ug/L ND 1.0 01/04/23 12:20
1,1,1-Trichloroethane ug/L ND 1.0 01/04/23 12:20
1,1,2,2-Tetrachloroethane ug/L ND 1.0 01/04/23 12:20
1,1,2-Trichloroethane ug/L ND 1.0 01/04/23 12:20
1,1-Dichloroethane ug/L ND 1.0 01/04/23 12:20
1,1-Dichloroethene ug/L ND 1.0 01/04/23 12:20
1,1-Dichloropropene ug/L ND 1.0 01/04/23 12:20
1,2,3-Trichlorobenzene ug/L ND 1.0 01/04/23 12:20
1,2,3-Trichloropropane ug/L ND 1.0 01/04/23 12:20
1,2,4-Trichlorobenzene ug/L ND 1.0 01/04/23 12:20
1,2-Dibromo-3-chloropropane ug/L ND 2.0 01/04/23 12:20
1,2-Dibromoethane (EDB)ug/L ND 1.0 01/04/23 12:20
1,2-Dichlorobenzene ug/L ND 1.0 01/04/23 12:20
1,2-Dichloroethane ug/L ND 1.0 01/04/23 12:20
1,2-Dichloropropane ug/L ND 1.0 01/04/23 12:20
1,3-Dichlorobenzene ug/L ND 1.0 01/04/23 12:20
1,3-Dichloropropane ug/L ND 1.0 01/04/23 12:20
1,4-Dichlorobenzene ug/L ND 1.0 01/04/23 12:20
2,2-Dichloropropane ug/L ND 1.0 01/04/23 12:20
2-Butanone (MEK)ug/L ND 5.0 01/04/23 12:20
2-Chlorotoluene ug/L ND 1.0 01/04/23 12:20
2-Hexanone ug/L ND 5.0 01/04/23 12:20
4-Chlorotoluene ug/L ND 1.0 01/04/23 12:20
4-Methyl-2-pentanone (MIBK)ug/L ND 5.0 01/04/23 12:20
Acetone ug/L ND 25.0 01/04/23 12:20
Benzene ug/L ND 1.0 01/04/23 12:20
Bromobenzene ug/L ND 1.0 01/04/23 12:20
Bromochloromethane ug/L ND 1.0 01/04/23 12:20
Bromodichloromethane ug/L ND 1.0 01/04/23 12:20
Bromoform ug/L ND 1.0 01/04/23 12:20
Bromomethane ug/L ND 2.0 01/04/23 12:20
Carbon tetrachloride ug/L ND 1.0 01/04/23 12:20
Chlorobenzene ug/L ND 1.0 01/04/23 12:20
Chloroethane ug/L ND 1.0 v101/04/23 12:20
Chloroform ug/L ND 1.0 01/04/23 12:20
Chloromethane ug/L ND 1.0 01/04/23 12:20
cis-1,2-Dichloroethene ug/L ND 1.0 01/04/23 12:20
cis-1,3-Dichloropropene ug/L ND 1.0 01/04/23 12:20
Dibromochloromethane ug/L ND 1.0 01/04/23 12:20
Dibromomethane ug/L ND 1.0 01/04/23 12:20
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 01/09/2023 12:45 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 7 of 22
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92644831
GE ORH
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
Parameter Units
Blank
Result
Reporting
Limit Qualifiers
METHOD BLANK:3885119
Associated Lab Samples:92644831001
Matrix:Water
Analyzed
Dichlorodifluoromethane ug/L ND 1.0 01/04/23 12:20
Diisopropyl ether ug/L ND 1.0 01/04/23 12:20
Ethylbenzene ug/L ND 1.0 01/04/23 12:20
Hexachloro-1,3-butadiene ug/L ND 2.0 01/04/23 12:20
m&p-Xylene ug/L ND 2.0 01/04/23 12:20
Methyl-tert-butyl ether ug/L ND 1.0 01/04/23 12:20
Methylene Chloride ug/L ND 5.0 01/04/23 12:20
Naphthalene ug/L ND 1.0 01/04/23 12:20
o-Xylene ug/L ND 1.0 01/04/23 12:20
p-Isopropyltoluene ug/L ND 1.0 01/04/23 12:20
Styrene ug/L ND 1.0 01/04/23 12:20
Tetrachloroethene ug/L ND 1.0 01/04/23 12:20
Toluene ug/L ND 1.0 01/04/23 12:20
trans-1,2-Dichloroethene ug/L ND 1.0 01/04/23 12:20
trans-1,3-Dichloropropene ug/L ND 1.0 01/04/23 12:20
Trichloroethene ug/L ND 1.0 01/04/23 12:20
Trichlorofluoromethane ug/L ND 1.0 01/04/23 12:20
Vinyl acetate ug/L ND 2.0 01/04/23 12:20
Vinyl chloride ug/L ND 1.0 01/04/23 12:20
Xylene (Total)ug/L ND 1.0 01/04/23 12:20
1,2-Dichloroethane-d4 (S)%110 70-130 01/04/23 12:20
4-Bromofluorobenzene (S)%100 70-130 01/04/23 12:20
Toluene-d8 (S)%102 70-130 01/04/23 12:20
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
3885120LABORATORY CONTROL SAMPLE:
LCSSpike
1,1,1,2-Tetrachloroethane ug/L 53.850 108 70-130
1,1,1-Trichloroethane ug/L 56.050 112 70-130
1,1,2,2-Tetrachloroethane ug/L 53.650 107 70-130
1,1,2-Trichloroethane ug/L 52.350 105 70-130
1,1-Dichloroethane ug/L 55.250 110 70-130
1,1-Dichloroethene ug/L 59.750 119 70-130
1,1-Dichloropropene ug/L 61.850 124 70-130
1,2,3-Trichlorobenzene ug/L 52.150 104 70-130
1,2,3-Trichloropropane ug/L 50.750 101 70-130
1,2,4-Trichlorobenzene ug/L 51.950 104 70-130
1,2-Dibromo-3-chloropropane ug/L 49.050 98 70-131
1,2-Dibromoethane (EDB)ug/L 53.350 107 70-130
1,2-Dichlorobenzene ug/L 53.750 107 70-130
1,2-Dichloroethane ug/L 55.250 110 70-130
1,2-Dichloropropane ug/L 54.750 109 70-130
1,3-Dichlorobenzene ug/L 52.450 105 70-130
1,3-Dichloropropane ug/L 52.750 105 70-130
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 01/09/2023 12:45 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 8 of 22
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92644831
GE ORH
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
3885120LABORATORY CONTROL SAMPLE:
LCSSpike
1,4-Dichlorobenzene ug/L 51.450 103 70-130
2,2-Dichloropropane ug/L 56.250 112 68-135
2-Butanone (MEK)ug/L 114100 114 70-134
2-Chlorotoluene ug/L 54.450 109 70-130
2-Hexanone ug/L 115100 115 70-131
4-Chlorotoluene ug/L 55.650 111 70-130
4-Methyl-2-pentanone (MIBK)ug/L 113100 113 70-130
Acetone ug/L 106100 106 70-133
Benzene ug/L 51.250 102 70-130
Bromobenzene ug/L 51.450 103 70-130
Bromochloromethane ug/L 53.450 107 70-130
Bromodichloromethane ug/L 52.850 106 70-130
Bromoform ug/L 51.950 104 70-130
Bromomethane ug/L 54.250 108 45-151
Carbon tetrachloride ug/L 52.350 105 70-130
Chlorobenzene ug/L 51.650 103 70-130
Chloroethane ug/L 67.0 v15013439-152
Chloroform ug/L 51.850 104 70-130
Chloromethane ug/L 56.750 113 58-130
cis-1,2-Dichloroethene ug/L 56.250 112 70-130
cis-1,3-Dichloropropene ug/L 55.150 110 70-130
Dibromochloromethane ug/L 51.950 104 70-130
Dibromomethane ug/L 49.850 100 70-130
Dichlorodifluoromethane ug/L 58.250 116 54-133
Diisopropyl ether ug/L 55.550 111 70-130
Ethylbenzene ug/L 53.450 107 70-130
Hexachloro-1,3-butadiene ug/L 53.550 107 70-135
m&p-Xylene ug/L 108100 108 70-130
Methyl-tert-butyl ether ug/L 52.150 104 70-130
Methylene Chloride ug/L 53.450 107 66-130
Naphthalene ug/L 55.350 111 70-130
o-Xylene ug/L 49.850 100 70-130
p-Isopropyltoluene ug/L 57.850 116 70-130
Styrene ug/L 54.750 109 70-130
Tetrachloroethene ug/L 50.750 101 70-130
Toluene ug/L 51.350 103 70-130
trans-1,2-Dichloroethene ug/L 57.250 114 70-130
trans-1,3-Dichloropropene ug/L 54.450 109 70-130
Trichloroethene ug/L 52.150 104 70-130
Trichlorofluoromethane ug/L 56.050 112 62-130
Vinyl acetate ug/L 120100 120 70-144
Vinyl chloride ug/L 60.650 121 62-130
Xylene (Total)ug/L 158150 105 70-130
1,2-Dichloroethane-d4 (S)%99 70-130
4-Bromofluorobenzene (S)%101 70-130
Toluene-d8 (S)%101 70-130
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 01/09/2023 12:45 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 9 of 22
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92644831
GE ORH
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
Parameter Units
MS
Result
% Rec
Limits Qualifiers% RecConc.
3885122MATRIX SPIKE SAMPLE:
MSSpike
Result
92643823002
1,1,1,2-Tetrachloroethane ug/L 23602000 118 70-141<100
1,1,1-Trichloroethane ug/L 25902000 129 70-150<100
1,1,2,2-Tetrachloroethane ug/L 23702000 119 69-142<100
1,1,2-Trichloroethane ug/L 23302000 117 70-138<100
1,1-Dichloroethane ug/L 25302000 127 70-150<100
1,1-Dichloroethene ug/L 26002000 129 70-156<100
1,1-Dichloropropene ug/L 28202000 141 70-150<100
1,2,3-Trichlorobenzene ug/L 21402000 107 70-148<100
1,2,3-Trichloropropane ug/L 22902000 114 70-140<100
1,2,4-Trichlorobenzene ug/L 21802000 109 70-146<100
1,2-Dibromo-3-chloropropane ug/L 21202000 106 68-146<200
1,2-Dibromoethane (EDB)ug/L 23502000 118 70-138<100
1,2-Dichlorobenzene ug/L 23202000 116 70-141<100
1,2-Dichloroethane ug/L 24602000 123 69-143<100
1,2-Dichloropropane ug/L 24602000 123 68-156<100
1,3-Dichlorobenzene ug/L 23102000 116 70-143<100
1,3-Dichloropropane ug/L 23602000 118 70-138<100
1,4-Dichlorobenzene ug/L 22702000 113 70-142<100
2,2-Dichloropropane ug/L 26202000 131 52-170<100
2-Butanone (MEK)ug/L 5040 v1400012660-157<500
2-Chlorotoluene ug/L 24202000 121 70-147<100
2-Hexanone ug/L 49604000 124 68-146<500
4-Chlorotoluene ug/L 24502000 123 70-142<100
4-Methyl-2-pentanone (MIBK)ug/L 49404000 124 70-141<500
Acetone ug/L 48404000 121 58-157<2500
Benzene ug/L 23402000 117 70-142<100
Bromobenzene ug/L 22402000 112 70-143<100
Bromochloromethane ug/L 24502000 122 70-146<100
Bromodichloromethane ug/L 23802000 119 70-139<100
Bromoform ug/L 22102000 110 64-140<100
Bromomethane ug/L 24902000 124 28-192<200
Carbon tetrachloride ug/L 24602000 123 70-148<100
Chlorobenzene ug/L 23702000 119 70-141<100
Chloroethane ug/L 28102000 141 58-191<100
Chloroform ug/L 24302000 120 70-148<100
Chloromethane ug/L 26702000 133 43-162<100
cis-1,2-Dichloroethene ug/L 167002000 104 68-15114600
cis-1,3-Dichloropropene ug/L 24302000 121 70-139<100
Dibromochloromethane ug/L 22402000 112 70-144<100
Dibromomethane ug/L 21602000 108 70-139<100
Dichlorodifluoromethane ug/L 27402000 137 39-171<100
Diisopropyl ether ug/L 24702000 123 67-142<100
Ethylbenzene ug/L 24602000 123 70-143<100
Hexachloro-1,3-butadiene ug/L 24502000 122 64-163<200
m&p-Xylene ug/L 48604000 121 70-144<200
Methyl-tert-butyl ether ug/L 23102000 115 65-143<100
Methylene Chloride ug/L 25002000 125 62-149<500
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 01/09/2023 12:45 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 10 of 22
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92644831
GE ORH
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
Parameter Units
MS
Result
% Rec
Limits Qualifiers% RecConc.
3885122MATRIX SPIKE SAMPLE:
MSSpike
Result
92643823002
Naphthalene ug/L 21402000 107 67-147<100
o-Xylene ug/L 22202000 111 70-145<100
p-Isopropyltoluene ug/L 25002000 125 70-147<100
Styrene ug/L 24002000 120 70-143<100
Tetrachloroethene ug/L 100002000 117 70-1457650
Toluene ug/L 23202000 116 70-142<100
trans-1,2-Dichloroethene ug/L 27102000 131 70-15190.7J
trans-1,3-Dichloropropene ug/L 24202000 121 70-139<100
Trichloroethene ug/L 54802000 130 62-1462890
Trichlorofluoromethane ug/L 26102000 131 63-153<100
Vinyl acetate ug/L 5180 v1400012961-162<200
Vinyl chloride ug/L 32002000 140 61-163398
Xylene (Total)ug/L 70706000 118 70-143<100
1,2-Dichloroethane-d4 (S)%108 70-130
4-Bromofluorobenzene (S)%103 70-130
Toluene-d8 (S)%99 70-130
Parameter Units
Dup
Result QualifiersRPDResult
92644353001
3885121SAMPLE DUPLICATE:
1,1,1,2-Tetrachloroethane ug/L NDND
1,1,1-Trichloroethane ug/L NDND
1,1,2,2-Tetrachloroethane ug/L NDND
1,1,2-Trichloroethane ug/L NDND
1,1-Dichloroethane ug/L NDND
1,1-Dichloroethene ug/L NDND
1,1-Dichloropropene ug/L NDND
1,2,3-Trichlorobenzene ug/L NDND
1,2,3-Trichloropropane ug/L NDND
1,2,4-Trichlorobenzene ug/L NDND
1,2-Dibromo-3-chloropropane ug/L NDND
1,2-Dibromoethane (EDB)ug/L NDND
1,2-Dichlorobenzene ug/L NDND
1,2-Dichloroethane ug/L NDND
1,2-Dichloropropane ug/L NDND
1,3-Dichlorobenzene ug/L NDND
1,3-Dichloropropane ug/L NDND
1,4-Dichlorobenzene ug/L NDND
2,2-Dichloropropane ug/L NDND
2-Butanone (MEK)ug/L ND v15.4
2-Chlorotoluene ug/L NDND
2-Hexanone ug/L .83JND
4-Chlorotoluene ug/L NDND
4-Methyl-2-pentanone (MIBK)ug/L NDND
Acetone ug/L 8.6JND
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 01/09/2023 12:45 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 11 of 22
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92644831
GE ORH
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
Parameter Units
Dup
Result QualifiersRPDResult
92644353001
3885121SAMPLE DUPLICATE:
Benzene ug/L NDND
Bromobenzene ug/L NDND
Bromochloromethane ug/L NDND
Bromodichloromethane ug/L NDND
Bromoform ug/L NDND
Bromomethane ug/L NDND
Carbon tetrachloride ug/L NDND
Chlorobenzene ug/L NDND
Chloroethane ug/L NDND
Chloroform ug/L NDND
Chloromethane ug/L NDND
cis-1,2-Dichloroethene ug/L NDND
cis-1,3-Dichloropropene ug/L NDND
Dibromochloromethane ug/L NDND
Dibromomethane ug/L NDND
Dichlorodifluoromethane ug/L NDND
Diisopropyl ether ug/L NDND
Ethylbenzene ug/L NDND
Hexachloro-1,3-butadiene ug/L NDND
m&p-Xylene ug/L NDND
Methyl-tert-butyl ether ug/L NDND
Methylene Chloride ug/L NDND
Naphthalene ug/L NDND
o-Xylene ug/L NDND
p-Isopropyltoluene ug/L NDND
Styrene ug/L NDND
Tetrachloroethene ug/L NDND
Toluene ug/L .27JND
trans-1,2-Dichloroethene ug/L NDND
trans-1,3-Dichloropropene ug/L NDND
Trichloroethene ug/L NDND
Trichlorofluoromethane ug/L NDND
Vinyl acetate ug/L ND v1ND
Vinyl chloride ug/L NDND
Xylene (Total)ug/L NDND
1,2-Dichloroethane-d4 (S)%105110
4-Bromofluorobenzene (S)%9899
Toluene-d8 (S)%102101
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 01/09/2023 12:45 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 12 of 22
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92644831
GE ORH
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
QC Batch:
QC Batch Method:
Analysis Method:
Analysis Description:
747637
EPA 8260D
EPA 8260D
8260D MSV Low Level
Laboratory:Pace Analytical Services - Charlotte
Associated Lab Samples:92644831002
Parameter Units
Blank
Result
Reporting
Limit Qualifiers
METHOD BLANK:3886949
Associated Lab Samples:92644831002
Matrix:Water
Analyzed
1,1,1,2-Tetrachloroethane ug/L ND 1.0 01/06/23 01:40
1,1,1-Trichloroethane ug/L ND 1.0 01/06/23 01:40
1,1,2,2-Tetrachloroethane ug/L ND 1.0 01/06/23 01:40
1,1,2-Trichloroethane ug/L ND 1.0 01/06/23 01:40
1,1-Dichloroethane ug/L ND 1.0 01/06/23 01:40
1,1-Dichloroethene ug/L ND 1.0 01/06/23 01:40
1,1-Dichloropropene ug/L ND 1.0 01/06/23 01:40
1,2,3-Trichlorobenzene ug/L ND 1.0 01/06/23 01:40
1,2,3-Trichloropropane ug/L ND 1.0 01/06/23 01:40
1,2,4-Trichlorobenzene ug/L ND 1.0 01/06/23 01:40
1,2-Dibromo-3-chloropropane ug/L ND 2.0 01/06/23 01:40
1,2-Dibromoethane (EDB)ug/L ND 1.0 01/06/23 01:40
1,2-Dichlorobenzene ug/L ND 1.0 01/06/23 01:40
1,2-Dichloroethane ug/L ND 1.0 01/06/23 01:40
1,2-Dichloropropane ug/L ND 1.0 01/06/23 01:40
1,3-Dichlorobenzene ug/L ND 1.0 01/06/23 01:40
1,3-Dichloropropane ug/L ND 1.0 01/06/23 01:40
1,4-Dichlorobenzene ug/L ND 1.0 01/06/23 01:40
2,2-Dichloropropane ug/L ND 1.0 01/06/23 01:40
2-Butanone (MEK)ug/L ND 5.0 01/06/23 01:40
2-Chlorotoluene ug/L ND 1.0 01/06/23 01:40
2-Hexanone ug/L ND 5.0 01/06/23 01:40
4-Chlorotoluene ug/L ND 1.0 01/06/23 01:40
4-Methyl-2-pentanone (MIBK)ug/L ND 5.0 01/06/23 01:40
Acetone ug/L ND 25.0 01/06/23 01:40
Benzene ug/L ND 1.0 01/06/23 01:40
Bromobenzene ug/L ND 1.0 01/06/23 01:40
Bromochloromethane ug/L ND 1.0 01/06/23 01:40
Bromodichloromethane ug/L ND 1.0 01/06/23 01:40
Bromoform ug/L ND 1.0 01/06/23 01:40
Bromomethane ug/L ND 2.0 01/06/23 01:40
Carbon tetrachloride ug/L ND 1.0 01/06/23 01:40
Chlorobenzene ug/L ND 1.0 01/06/23 01:40
Chloroethane ug/L ND 1.0 01/06/23 01:40
Chloroform ug/L ND 1.0 01/06/23 01:40
Chloromethane ug/L ND 1.0 01/06/23 01:40
cis-1,2-Dichloroethene ug/L ND 1.0 01/06/23 01:40
cis-1,3-Dichloropropene ug/L ND 1.0 01/06/23 01:40
Dibromochloromethane ug/L ND 1.0 01/06/23 01:40
Dibromomethane ug/L ND 1.0 01/06/23 01:40
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 01/09/2023 12:45 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 13 of 22
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92644831
GE ORH
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
Parameter Units
Blank
Result
Reporting
Limit Qualifiers
METHOD BLANK:3886949
Associated Lab Samples:92644831002
Matrix:Water
Analyzed
Dichlorodifluoromethane ug/L ND 1.0 v201/06/23 01:40
Diisopropyl ether ug/L ND 1.0 01/06/23 01:40
Ethylbenzene ug/L ND 1.0 01/06/23 01:40
Hexachloro-1,3-butadiene ug/L ND 2.0 01/06/23 01:40
m&p-Xylene ug/L ND 2.0 01/06/23 01:40
Methyl-tert-butyl ether ug/L ND 1.0 01/06/23 01:40
Methylene Chloride ug/L ND 5.0 01/06/23 01:40
Naphthalene ug/L ND 1.0 01/06/23 01:40
o-Xylene ug/L ND 1.0 01/06/23 01:40
p-Isopropyltoluene ug/L ND 1.0 01/06/23 01:40
Styrene ug/L ND 1.0 01/06/23 01:40
Tetrachloroethene ug/L ND 1.0 01/06/23 01:40
Toluene ug/L ND 1.0 01/06/23 01:40
trans-1,2-Dichloroethene ug/L ND 1.0 01/06/23 01:40
trans-1,3-Dichloropropene ug/L ND 1.0 01/06/23 01:40
Trichloroethene ug/L ND 1.0 01/06/23 01:40
Trichlorofluoromethane ug/L ND 1.0 01/06/23 01:40
Vinyl acetate ug/L ND 2.0 01/06/23 01:40
Vinyl chloride ug/L ND 1.0 01/06/23 01:40
Xylene (Total)ug/L ND 1.0 01/06/23 01:40
1,2-Dichloroethane-d4 (S)%104 70-130 01/06/23 01:40
4-Bromofluorobenzene (S)%96 70-130 01/06/23 01:40
Toluene-d8 (S)%100 70-130 01/06/23 01:40
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
3886950LABORATORY CONTROL SAMPLE:
LCSSpike
1,1,1,2-Tetrachloroethane ug/L 51.650 103 70-130
1,1,1-Trichloroethane ug/L 51.250 102 70-130
1,1,2,2-Tetrachloroethane ug/L 52.550 105 70-130
1,1,2-Trichloroethane ug/L 53.550 107 70-130
1,1-Dichloroethane ug/L 50.850 102 70-130
1,1-Dichloroethene ug/L 51.550 103 70-130
1,1-Dichloropropene ug/L 52.350 105 70-130
1,2,3-Trichlorobenzene ug/L 48.450 97 70-130
1,2,3-Trichloropropane ug/L 51.450 103 70-130
1,2,4-Trichlorobenzene ug/L 48.950 98 70-130
1,2-Dibromo-3-chloropropane ug/L 48.550 97 70-131
1,2-Dibromoethane (EDB)ug/L 53.350 107 70-130
1,2-Dichlorobenzene ug/L 50.950 102 70-130
1,2-Dichloroethane ug/L 52.650 105 70-130
1,2-Dichloropropane ug/L 52.750 105 70-130
1,3-Dichlorobenzene ug/L 50.450 101 70-130
1,3-Dichloropropane ug/L 50.250 100 70-130
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.Date: 01/09/2023 12:45 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 14 of 22
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92644831
GE ORH
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
3886950LABORATORY CONTROL SAMPLE:
LCSSpike
1,4-Dichlorobenzene ug/L 50.050 100 70-130
2,2-Dichloropropane ug/L 45.850 92 68-135
2-Butanone (MEK)ug/L 113100 113 70-134
2-Chlorotoluene ug/L 50.350 101 70-130
2-Hexanone ug/L 112100 112 70-131
4-Chlorotoluene ug/L 50.150 100 70-130
4-Methyl-2-pentanone (MIBK)ug/L 111100 111 70-130
Acetone ug/L 106100 106 70-133
Benzene ug/L 47.550 95 70-130
Bromobenzene ug/L 50.950 102 70-130
Bromochloromethane ug/L 53.550 107 70-130
Bromodichloromethane ug/L 50.350 101 70-130
Bromoform ug/L 46.450 93 70-130
Bromomethane ug/L 50.350 101 45-151
Carbon tetrachloride ug/L 49.450 99 70-130
Chlorobenzene ug/L 50.150 100 70-130
Chloroethane ug/L 61.550 123 39-152
Chloroform ug/L 51.950 104 70-130
Chloromethane ug/L 56.450 113 58-130
cis-1,2-Dichloroethene ug/L 52.550 105 70-130
cis-1,3-Dichloropropene ug/L 49.850 100 70-130
Dibromochloromethane ug/L 50.950 102 70-130
Dibromomethane ug/L 49.050 98 70-130
Dichlorodifluoromethane ug/L 46.3 v3509354-133
Diisopropyl ether ug/L 49.750 99 70-130
Ethylbenzene ug/L 49.050 98 70-130
Hexachloro-1,3-butadiene ug/L 47.150 94 70-135
m&p-Xylene ug/L 99.6100 100 70-130
Methyl-tert-butyl ether ug/L 48.350 97 70-130
Methylene Chloride ug/L 52.150 104 66-130
Naphthalene ug/L 51.350 103 70-130
o-Xylene ug/L 50.450 101 70-130
p-Isopropyltoluene ug/L 49.450 99 70-130
Styrene ug/L 50.650 101 70-130
Tetrachloroethene ug/L 47.750 95 70-130
Toluene ug/L 48.550 97 70-130
trans-1,2-Dichloroethene ug/L 52.350 105 70-130
trans-1,3-Dichloropropene ug/L 51.650 103 70-130
Trichloroethene ug/L 51.550 103 70-130
Trichlorofluoromethane ug/L 44.550 89 62-130
Vinyl acetate ug/L 108100 108 70-144
Vinyl chloride ug/L 52.650 105 62-130
Xylene (Total)ug/L 150150 100 70-130
1,2-Dichloroethane-d4 (S)%101 70-130
4-Bromofluorobenzene (S)%99 70-130
Toluene-d8 (S)%101 70-130
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 01/09/2023 12:45 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 15 of 22
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92644831
GE ORH
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
Parameter Units
MS
Result
% Rec
Limits Qual% RecConc.
3886951MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
MSSpike
Result
92644823001
3886952
MSD
Result
MSD
% Rec RPD
MSDMS
Spike
Conc.
1,1,1,2-Tetrachloroethane ug/L 2000 121 70-141120 12000ND24102390
1,1,1-Trichloroethane ug/L 2000 128 70-150125 22000ND25502500
1,1,2,2-Tetrachloroethane ug/L 2000 121 69-142119 22000ND24102370
1,1,2-Trichloroethane ug/L 2000 126 70-138119 52000ND25102380
1,1-Dichloroethane ug/L 2000 124 70-150121 22000ND24802420
1,1-Dichloroethene ug/L 2000 131 70-156129 12000ND26102580
1,1-Dichloropropene ug/L 2000 128 70-150126 22000ND25602520
1,2,3-Trichlorobenzene ug/L 2000 110 70-148109 12000ND21902170
1,2,3-Trichloropropane ug/L 2000 119 70-140121 12000ND23802420
1,2,4-Trichlorobenzene ug/L 2000 111 70-146110 02000ND22102210
1,2-Dibromo-3-chloropropane ug/L 2000 108 68-146108 02000ND21602170
1,2-Dibromoethane (EDB)ug/L 2000 119 70-138120 12000ND23702400
1,2-Dichlorobenzene ug/L 2000 119 70-141115 32000ND23802300
1,2-Dichloroethane ug/L 2000 129 69-143124 42000ND25802480
1,2-Dichloropropane ug/L 2000 123 68-156125 12000ND24602490
1,3-Dichlorobenzene ug/L 2000 119 70-143118 12000ND23802360
1,3-Dichloropropane ug/L 2000 118 70-138116 22000ND23502310
1,4-Dichlorobenzene ug/L 2000 117 70-142117 02000ND23302340
2,2-Dichloropropane ug/L 2000 100 52-17099 12000ND20101980
2-Butanone (MEK)ug/L 4000 129 60-157136 54000ND51805430
2-Chlorotoluene ug/L 2000 121 70-147120 12000ND24302400
2-Hexanone ug/L 4000 122 68-146126 44000ND48705050
4-Chlorotoluene ug/L 2000 119 70-142117 22000ND23902340
4-Methyl-2-pentanone (MIBK)ug/L 4000 129 70-141127 14000ND51505080
Acetone ug/L 4000 127 58-157135 64000ND50705400
Benzene ug/L 2000 127 70-142109 3200079901050010200
Bromobenzene ug/L 2000 118 70-143118 02000ND23502360
Bromochloromethane ug/L 2000 123 70-146124 12000ND24502490
Bromodichloromethane ug/L 2000 119 70-139117 22000ND23902330
Bromoform ug/L 2000 101 64-140102 12000ND20102040
Bromomethane ug/L 2000 108 28-192116 72000ND21702330
Carbon tetrachloride ug/L 2000 125 70-148122 22000ND24902430
Chlorobenzene ug/L 2000 123 70-141118 42000ND24602370
Chloroethane ug/L 2000 144 58-191138 42000ND28902760
Chloroform ug/L 2000 125 70-148121 32000ND25102430
Chloromethane ug/L 2000 140 43-162141 02000ND28102820
cis-1,2-Dichloroethene ug/L 2000 130 68-151125 42000ND25902500
cis-1,3-Dichloropropene ug/L 2000 112 70-139109 32000ND22502180
Dibromochloromethane ug/L 2000 115 70-144113 22000ND23002260
Dibromomethane ug/L 2000 111 70-139111 02000ND22102220
Dichlorodifluoromethane ug/L v3200011739-171115 12000ND23402310
Diisopropyl ether ug/L 2000 118 67-142120 12000ND24202460
Ethylbenzene ug/L 2000 122 70-143122 02000225047004680
Hexachloro-1,3-butadiene ug/L 2000 110 64-163110 02000ND22002200
m&p-Xylene ug/L 4000 130 70-144125 14000106001570015500
Methyl-tert-butyl ether ug/L 2000 112 65-143113 12000ND22502260
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 01/09/2023 12:45 PM
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Huntersville, NC 28078
[phone]
Page 16 of 22
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92644831
GE ORH
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
Parameter Units
MS
Result
% Rec
Limits Qual% RecConc.
3886951MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
MSSpike
Result
92644823001
3886952
MSD
Result
MSD
% Rec RPD
MSDMS
Spike
Conc.
Methylene Chloride ug/L 2000 122 62-149119 22000ND25802530
Naphthalene ug/L 2000 118 67-147119 1200088332403270
o-Xylene ug/L 2000 129 70-145126 12000457071607080
p-Isopropyltoluene ug/L 2000 118 70-147116 22000ND23602330
Styrene ug/L 2000 123 70-143122 12000ND24602440
Tetrachloroethene ug/L 2000 116 70-145114 22000ND23202280
Toluene ug/L 2000 124 70-142100 32000132001570015200
trans-1,2-Dichloroethene ug/L 2000 126 70-151127 12000ND25102530
trans-1,3-Dichloropropene ug/L 2000 113 70-139111 22000ND22602210
Trichloroethene ug/L 2000 125 62-146121 32000ND25002430
Trichlorofluoromethane ug/L 2000 117 63-153114 32000ND23502280
Vinyl acetate ug/L 4000 124 61-162125 14000ND49405000
Vinyl chloride ug/L 2000 130 61-163131 12000ND26102630
Xylene (Total)ug/L 6000 129 70-143125 16000151002290022600
1,2-Dichloroethane-d4 (S)%106 70-130103
4-Bromofluorobenzene (S)%99 70-13099
Toluene-d8 (S)%100 70-130100
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 01/09/2023 12:45 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 17 of 22
#=QL#
QUALIFIERS
Pace Project No.:
Project:
92644831
GE ORH
DEFINITIONS
DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot.
ND - Not Detected at or above adjusted reporting limit.
TNTC - Too Numerous To Count
J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit.
MDL - Adjusted Method Detection Limit.
PQL - Practical Quantitation Limit.
RL - Reporting Limit - The lowest concentration value that meets project requirements for quantitative data with known precision and
bias for a specific analyte in a specific matrix.
S - Surrogate
1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte is
a combined concentration.
Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values.
LCS(D) - Laboratory Control Sample (Duplicate)
MS(D) - Matrix Spike (Duplicate)
DUP - Sample Duplicate
RPD - Relative Percent Difference
NC - Not Calculable.
SG - Silica Gel - Clean-Up
U - Indicates the compound was analyzed for, but not detected.
Acid preservation may not be appropriate for 2 Chloroethylvinyl ether.
A separate vial preserved to a pH of 4-5 is recommended in SW846 Chapter 4 for the analysis of Acrolein and Acrylonitrile by EPA
Method 8260.
N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for
each analyte is a combined concentration.
Reported results are not rounded until the final step prior to reporting. Therefore, calculated parameters that are typically reported as
"Total" may vary slightly from the sum of the reported component parameters.
Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes.
TNI - The NELAC Institute.
ANALYTE QUALIFIERS
Result confirmed by second analysis.C0
The continuing calibration verification was above the method acceptance limit. Any detection for the analyte in the
associated samples may have a high bias.v1
The continuing calibration verification was below the method acceptance limit. The analyte was not detected in the
associated samples and the sensitivity of the instrument was verified with a reporting limit check standard.v2
The continuing calibration verification was below the method acceptance limit. Any detection for the analyte in the
associated samples may have low bias.v3
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.Date: 01/09/2023 12:45 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 18 of 22
#=CR#
QUALITY CONTROL DATA CROSS REFERENCE TABLE
Pace Project No.:
Project:
92644831
GE ORH
Lab ID Sample ID QC Batch Method QC Batch Analytical Method
Analytical
Batch
92644831001 747306MW-15 EPA 8260D
92644831002 747637TRIP BLANK EPA 8260D
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.Date: 01/09/2023 12:45 PM
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[phone]
Page 19 of 22
Page 20 of 22
Page 21 of 22
Page 22 of 22

APPENDIX C

Historical Groundwater Analytical Data

Appendix C1 - Groundwater Analytical Data
Groundwater Monitoring and Sampling Report - 2H2022
Former Gant Oil Company #823
4325 Old Rural Hall Road,
Winston-Salem, North Carolina
Well ID Date
Sampled
Benzene
(ug/l)
Toluene
(ug/l)
Ethylbenzene
(ug/l)
Xylenes
(ug/l)
TOTAL
BTEX (ug/l)
PCE
(ug/l)
TCE
(ug/l)
Naphthalene
(ug/l)
EDB
(ug/l)
1,2
Dichloroethane
(ug/l)
MTBE
(ug/l)
1,2,4-
Trimethylbenze
(ug/l)
1,3,5-
Trimethylbenze
(ug/l)
NC GCL Standard 5,000 260,000 84,500 85,500 N/A 700 3,000 6,000 50 400 20,000 28,500 25,000
5/4/2003 6,510 11,100 1,350 7,330 26,290 BDL BDL 263 34.6 <5 2,000 1,030 295
9/24/2003 6,380 10,300 1,320 7,490 25,490 NA NA 319 71.2 699 2,310 1,160 480
2/8/2012 370 430 470 2,800 4,070 BDL BDL 540 BDL 28 2,500 1,500 650
5/4/2003 17,600 38,600 3,210 18,190 77,600 BDL BDL 159 224 <5 4,160 1,720 671
9/24/2003 16,400 39,800 3,420 18,900 78,520 NA NA 555 148 472 4,070 1,650 579
2/8/2012 5,300 41,000 4,800 27,000 78,100 BDL BDL 750 BDL BDL BDL 3,100 820
5/4/2003 3,570 16,500 2,600 12,980 35,650 NA NA 146 8.2 <10 <10 2,280 721
9/24/2003 5,260 26,800 3,750 19,170 54,980 BDL BDL 578 16.8 BDL BDL 3,020 723
2/8/2012 310 10,000 2,900 16,000 29,210 1,200 91 670 BDL BDL BDL 2,900 680
10/13/2016 81.3 5,680 2,850 13,650 22,261.3 261 163 595 BDL BDL BDL 2,720 653
5/17/2017 34.8 2,090 1,500 7,710 11,335 665 220 519 BDL BDL BDL 1,600 BDL
10/26/2017 110 6,100 4,000 19,000 29,210 120 90 890 BDL BDL BDL 4,000 840
5/31/2018 42 2,100 1,400 7,300 10,842 600 200 600 BDL BDL BDL 1,500 640
12/4/2019 33.5 2,280 2,060 10,600 14,974 48.7 29.1 607 BDL BDL BDL 2,580 BDL
5/27/2020 BDL 1,140 1,460 8,760 11,360 80.4 46 501 BDL BDL BDL 2,090 BDL
12/10/2020 BDL 1,030 1,360 7,600 9,990 378 39.2 485 BDL BDL BDL 1,900 BDL
9/24/2003 BDL BDL BDL BDL 0 BDL BDL 1.1 BDL BDL BDL <1 <1
2/8/2012 BDL BDL BDL BDL 0 320 1.4 BDL BDL BDL BDL BDL BDL
9/24/2003 BDL BDL BDL BDL 0 BDL BDL <1 BDL BDL BDL <1 <1
2/8/2012 BDL BDL BDL BDL 0 150 0.57 BDL BDL BDL BDL BDL BDL
10/13/2016 BDL BDL BDL BDL 0 7.3 BDL BDL BDL BDL BDL BDL BDL
5/17/2017 BDL BDL BDL BDL 0 7 BDL BDL BDL BDL BDL BDL BDL
10/26/2017 BDL BDL BDL BDL 0 8.3 BDL BDL BDL BDL BDL BDL BDL
5/31/2018 BDL BDL BDL BDL 0 28 BDL BDL BDL BDL BDL BDL BDL
6/15/2019 BDL BDL BDL BDL BDL BDL 11 BDL BDL BDL BDL BDL BDL
9/24/2003 866 13 338 1,359 2,576 BDL BDL 22.9 BDL BDL 211 460 77.4
2/8/2012 300 2.8 200 580 1,083 BDL BDL 53 BDL BDL 5.7 360 95
10/13/2016 72.6 0.84 74 224.1 371 BDL BDL 50 BDL BDL 53.6 185 60
5/17/2017 519 5.4 48.9 91 665 BDL BDL 36 BDL 2.5 668 55 29.7
10/26/2017 260 1 130 170 561 BDL BDL 13 BDL BDL 43 76 49
5/31/2018 82 2 25 130 239 BDL BDL 1.6 BDL BDL 4.8 19 17
9/24/2003 138 39 140 900 1,217 BDL BDL 104 BDL BDL BDL 663 168
2/8/2012 3.8 7.9 23 690 725 BDL BDL 190 BDL BDL BDL 1,000 310
10/13/2016 BDL 6.3 21.6 482 510 BDL BDL 111 BDL BDL BDL 700 251
5/17/2017 2.6 4.6 16.4 528 552 BDL BDL 115 BDL BDL BDL 801 BDL
10/26/2017 BDL 2 14 1,100 1,116 BDL BDL 140 BDL BDL BDL 550 830
5/31/2018 1 1 9 370 381 BDL BDL 82 BDL BDL BDL 500 190
6/15/2019 BDL BDL 4.3 136.2 140.5 BDL BDL 31.3 BDL BDL BDL 163 62.5
12/6/2019 BDL BDL 7 189.9 196.9 BDL BDL 27.1 BDL BDL BDL 183 86.5
5/27/2020 BDL BDL 8.8 146.2 155 BDL BDL 57.4 BDL BDL BDL 203 BDL
12/10/2020 BDL BDL 8 143.2 151 BDL BDL 42.4 BDL BDL BDL 183 BDL
9/24/2003 BDL BDL BDL BDL 0 BDL BDL <1 BDL BDL BDL <1 <1
2/8/2012 BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL BDL
10/13/2016 BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL BDL
5/17/2017 BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL BDL
10/26/2017 BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL BDL
5/31/2018 BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL BDL
12/4/2019 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL
MW-1
MW-2
MW-4
MW-7
MW-5
MW-3
MW-6
MW-8
Appendix C1 - Groundwater Analytical Data
Groundwater Monitoring and Sampling Report - 2H2022
Former Gant Oil Company #823
4325 Old Rural Hall Road,
Winston-Salem, North Carolina
Well ID Date
Sampled
Benzene
(ug/l)
Toluene
(ug/l)
Ethylbenzene
(ug/l)
Xylenes
(ug/l)
TOTAL
BTEX (ug/l)
PCE
(ug/l)
TCE
(ug/l)
Naphthalene
(ug/l)
EDB
(ug/l)
1,2
Dichloroethane
(ug/l)
MTBE
(ug/l)
1,2,4-
Trimethylbenze
(ug/l)
1,3,5-
Trimethylbenze
(ug/l)
NC GCL Standard 5,000 260,000 84,500 85,500 N/A 700 3,000 6,000 50 400 20,000 28,500 25,000
9/24/2003 BDL BDL BDL BDL 0 BDL BDL 5.8 BDL BDL 19.4 2.6 <1
2/8/2012 BDL BDL BDL BDL 0 7.2 BDL BDL BDL BDL BDL BDL BDL
10/13/2016 BDL BDL BDL BDL 0 6.8 8.3 BDL BDL BDL BDL BDL BDL
5/17/2017 BDL BDL BDL BDL 0 22.2 BDL BDL BDL BDL BDL BDL BDL
10/26/2017 BDL BDL BDL BDL 0 19 BDL BDL BDL BDL BDL BDL BDL
5/31/2018 BDL BDL BDL BDL 0 21 BDL BDL BDL BDL BDL BDL BDL
12/4/2019 BDL BDL BDL BDL BDL 3.6 BDL BDL BDL BDL BDL BDL BDL
5/29/2020 BDL BDL BDL BDL BDL 2.3 BDL BDL BDL BDL BDL BDL BDL
9/24/2003 <1 <1 <1 <3 BDL NA NA <1 <1 <1 <1 <1 <1
2/8/2012 BDL BDL BDL BDL 0 40 BDL BDL BDL BDL BDL BDL BDL
10/13/2016 BDL BDL BDL BDL 0 4.3 BDL BDL BDL BDL BDL BDL BDL
5/17/2017 BDL BDL BDL BDL 0 2.7 BDL BDL BDL BDL BDL BDL BDL
10/26/2017 BDL BDL BDL BDL 0 4 BDL BDL BDL BDL BDL BDL BDL
5/31/2018 BDL BDL BDL BDL 0 3.2 BDL BDL BDL BDL BDL BDL BDL
12/5/2019 BDL BDL BDL BDL BDL 1.2 BDL BDL BDL BDL BDL BDL BDL
5/29/2020 BDL BDL BDL BDL 1.4 BDL BDL BDL BDL BDL BDL BDL
9/24/2003 4,590 102,000 2,820 13,350 122,760 BDL BDL BDL BDL BDL BDL BDL BDL
2/25/2004 4,590 102,000 2,820 13,350 122,760 NA NA 326 <100 <100 <100 1,040 302
2/8/2012 2,700 300,000 34,000 210,000 546,700 BDL BDL 87,000 BDL BDL BDL 370,000 95,000
10/13/2016 BDL 1,600,000 365,000 1,904,000 3,869,000 BDL BDL BDL BDL BDL BDL 673,000 BDL
5/17/2017
9/24/2003 1,160 9,320 1,160 5,830 17,470 BDL BDL NA BDL BDL BDL NA NA
2/25/2004 1,160 9,320 1,160 5,830 17,470 NA NA 161 <10 <10 <10 723 137
2/8/2012 800 5,100 1,000 5,700 12,600 BDL BDL 130 BDL BDL BDL 810 130
10/13/2016 19 153 130 483 845 BDL BDL 16.4 BDL BDL BDL 92 81
5/17/2017 312 2,000 621 2,557 5,490 BDL BDL 70.7 BDL BDL BDL 370 163
10/26/2017 29 16 57 130 232 BDL BDL 18 BDL 0.53 BDL 50 97
5/31/2018 170 350 340 970 1,830 BDL BDL 39 BDL BDL BDL 190 130
10/13/2016 133 192 102 313 740 12 BDL 69.3 BDL 14.4 1,360 83.1 38.9
5/17/2017 140 628 182 955 1,905 11.6 BDL 174 BDL 11.9 1,070 233 BDL
10/26/2017 240 2,300 590 4,000 7,130 19 BDL 360 BDL 13 1,500 720 250
5/31/2018 49 54 65 280 448 7.4 1.2 66 BDL 5.4 800 87 30
6/15/2019 2.7 11.8 14.1 91.3 119.9 12.3 BDL 11.6 BDL 2.1 175 31.1 13.6
12/5/2019 7.6 173 80.5 466 727.1 9.8 BDL 51.9 BDL 1.5 160 141 51.8
5/29/2020 BDL 24 18.1 106.9 149 13.1 BDL 11.1 BDL 0.57 44.3 39.2 BDL
12/10/2020 1.6 98.5 64.4 398 563 9.3 BDL 34.6 BDL BDL 34.7 130 42.3
10/13/2016 5,980 26,600 2,540 15,330 50,450 BDL BDL 752 BDL BDL BDL 2,210 573
5/17/2017 1,390 9,960 2,110 13,330 26,790 BDL BDL 837 BDL BDL 68.3 2,500 BDL
10/26/2017 3,100 19,000 2,600 17,000 41,700 BDL BDL 720 BDL BDL 260 3,300 960
5/31/2018 4,500 28,000 3,300 21,000 56,800 BDL BDL 880 BDL BDL 260 3,000 820
6/15/2019 2,960 14,500 1,920 12,510 31,890 BDL BDL 574 BDL BDL 541 2,160 616
12/4/2019 3,100 14,800 1,850 12,540 32,290 BDL BDL 698 BDL BDL 829 2,300 629
5/27/2020 3,320 13,500 1,800 11,890 30,510 BDL BDL 602 BDL BDL 999 2,130 BDL
12/11/2020 4,040 14,300 1,980 13,120 33,440 BDL BDL 719 BDL 68.6 1,570 2,240 619
MW-11
MW-9
MW-10
NOT SAMPLED DUE TO PRESENCE OF PRODUCT
MW-13
MW-14
MW-12
Appendix C1 - Groundwater Analytical Data
Groundwater Monitoring and Sampling Report - 2H2022
Former Gant Oil Company #823
4325 Old Rural Hall Road,
Winston-Salem, North Carolina
Well ID Date
Sampled
Benzene
(ug/l)
Toluene
(ug/l)
Ethylbenzene
(ug/l)
Xylenes
(ug/l)
TOTAL
BTEX (ug/l)
PCE
(ug/l)
TCE
(ug/l)
Naphthalene
(ug/l)
EDB
(ug/l)
1,2
Dichloroethane
(ug/l)
MTBE
(ug/l)
1,2,4-
Trimethylbenze
(ug/l)
1,3,5-
Trimethylbenze
(ug/l)
NC GCL Standard 5,000 260,000 84,500 85,500 N/A 700 3,000 6,000 50 400 20,000 28,500 25,000
10/13/2016 10,400 41,200 6,160 33,200 90,960 BDL BDL 4,190 BDL BDL BDL 23,900 3,230
5/17/2017 1,460 5,440 2,220 11,540 20,660 BDL BDL 1,130 34.1 38.4 BDL 7,580 2,280
10/26/2017 6,500 9,900 1,800 9,400 27,600 BDL BDL 750 44 43 70 3,500 950
5/31/2018 8,900 25,000 2,700 14,000 50,600 BDL BDL 500 150 160 520 2,600 700
6/15/2019 135 297 58.8 350 840.8 BDL BDL 20.8 1.9 6.3 19.4 104 29.3
12/4/2019 4470 11500 1150 6210 23,330 BDL BDL 281 60 95.5 288 912 BDL
5/27/2020 1,750 3,720 485 3,420 9,375 BDL BDL 203 19.4 44.2 160 794 BDL
12/10/2020 6,170 14,000 1,520 8,310 30,000 BDL BDL 325 BDL 176 621 1,250 338
7/16/2021 6,770 14,500 1,620 8,400 31,290 NA NA 357 77.2 178 807 1,250 BDL
12/20/2021 6,460 17,900 1,720 9,150 35,230 BDL BDL BDL BDL BDL BDL 1,210 341
6/7/2022 8,330 18,900 2,000 10,430 39,660 BDL BDL 469 94.1 158 896 1,510 355
12/29/2022 4,760 9,570 1,380 7,360 23,070 BDL BDL 354 BDL 142 837 BDL BDL
10/13/2016 BDL BDL BDL BDL 0 408 4.1 BDL BDL 8.9 BDL BDL BDL
5/17/2017 BDL BDL BDL BDL 0 303 2.6 BDL BDL BDL BDL BDL BDL
10/26/2017 BDL BDL BDL BDL 0 560 4.9 BDL BDL BDL BDL BDL BDL
5/31/2018 BDL BDL BDL BDL 0 230 2.3 BDL BDL BDL BDL BDL BDL
12/6/2019 BDL BDL BDL BDL BDL 10.5 BDL BDL BDL BDL BDL BDL BDL
5/27/2020 BDL BDL BDL BDL BDL 14.3 BDL BDL BDL BDL BDL BDL BDL
10/13/2016 3,050 1,300 959 5,638 10,947 13.7 BDL 353 BDL 16.4 BDL 1,340 279
5/17/2017 1,690 420 456 2,779 5,345 35.5 10.4 180 BDL 9.6 1,760 714 BDL
10/26/2017 1,400 170 250 2,100 3,920 44 12 120 BDL 5.5 2,200 530 120
5/31/2018 2,100 460 300 3,400 6,260 18 13 130 BDL 7.5 2,100 710 160
10/13/2016 1,520 9,640 1,030 5,320 17,510 32.7 BDL 192 BDL BDL 1,620 1,140 230
5/17/2017 2,140 23,400 1,430 7,550 34,520 BDL BDL 309 BDL BDL 1,450 1,420 BDL
10/26/2017 1,700 6,000 620 3,700 12,020 33 BDL 130 BDL 30 2,700 710 140
5/31/2018 3,300 5,800 760 4,800 14,660 70 BDL 190 BDL 20 6,600 1,200 210
6/15/2019 2,110 4,080 663 3,576 10,429 BDL BDL 137 BDL 38.8 5,530 792 BDL
12/6/2019 2,620 19,700 1650 8,700 32,670 BDL BDL 386 BDL BDL 5,690 1660 390
5/29/2020 2,690 10,400 1,060 5,600 19,750 BDL BDL 277 BDL BDL 6,340 1,220 BDL
12/11/2020 2,770 20,300 1,850 9,510 34,430 BDL BDL 346 BDL BDL 5,740 1,600 375
10/13/2016 5.1 61.5 153 1,934 2,154 181 BDL 194 BDL BDL BDL 1,320 453
5/17/2017 6 19 27 848 900 102 BDL 109 BDL BDL BDL 881 228
10/26/2017 30 2,700 1,600 9,900 14,230 100 BDL 430 BDL BDL BDL 3,100 830
5/31/2018 14 1,500 1,500 9,300 12,314 85 BDL 380 BDL BDL BDL 3,200 850
6/15/2019 24.7 1,060 1,010 6,360 8,455 71.6 BDL 367 BDL BDL BDL 2,170 729
12/6/2019 338 19,900 1,950 10,070 32,258 BDL BDL BDL BDL BDL BDL 1,830 563
5/29/2020 117 7,400 1,490 7,190 16,197 27.6 BDL 335 BDL BDL BDL 1,880 669
12/11/2020 397 30,900 2,910 15,830 50,037 BDL BDL 452 BDL BDL BDL 2,280 699
10/13/2016 BDL BDL BDL BDL 0 19.3 BDL BDL BDL BDL BDL BDL BDL
5/17/2017 BDL BDL BDL BDL 0 16.9 BDL BDL BDL BDL BDL BDL BDL
10/26/2017 BDL BDL BDL BDL 0 21 BDL BDL BDL BDL BDL BDL BDL
5/31/2018 BDL BDL BDL BDL 0 15 BDL BDL BDL BDL BDL BDL BDL
6/15/2019 BDL 2.6 2.3 15.9 20.8 9.5 BDL 2.9 BDL BDL BDL 6.9 BDL
12/6/2019 BDL BDL BDL BDL BDL 16.9 BDL BDL BDL BDL BDL BDL BDL
5/29/2020 BDL BDL BDL BDL BDL 18 BDL BDL BDL BDL BDL BDL BDL
MW-18
MW-15
MW-16
MW-17
MW-19
MW-20
Appendix C1 - Groundwater Analytical Data
Groundwater Monitoring and Sampling Report - 2H2022
Former Gant Oil Company #823
4325 Old Rural Hall Road,
Winston-Salem, North Carolina
Well ID Date
Sampled
Benzene
(ug/l)
Toluene
(ug/l)
Ethylbenzene
(ug/l)
Xylenes
(ug/l)
TOTAL
BTEX (ug/l)
PCE
(ug/l)
TCE
(ug/l)
Naphthalene
(ug/l)
EDB
(ug/l)
1,2
Dichloroethane
(ug/l)
MTBE
(ug/l)
1,2,4-
Trimethylbenze
(ug/l)
1,3,5-
Trimethylbenze
(ug/l)
NC GCL Standard 5,000 260,000 84,500 85,500 N/A 700 3,000 6,000 50 400 20,000 28,500 25,000
9/24/2003 599 294 25.5 287 1,206 BDL BDL 15.1 BDL 60.5 34.2 26.9 2.6
2/8/2012 6,800 6,800 1,200 5,700 20,500 BDL BDL 310 BDL 260 70 870 220
10/13/2016 5,410 5,960 893 5,290 17,553 BDL BDL 370 BDL 561 1,720 869 224
5/17/2017 7,670 12,000 1,120 5,990 26,780 BDL BDL 365 56 509 2,830 730 BDL
10/25/2017 13,000 18,000 1,700 9,800 42,500 BDL BDL 400 BDL 1,000 6,400 1,100 270
6/1/2018 8,800 16,000 940 9,100 34,840 BDL BDL 360 80 1,100 7,300 990 300
6/15/2019 7,900 10,900 1,270 6,750 26,820 BDL BDL 265 BDL 588 2,760 896 236
12/4/2019 7,680 10,600 1,390 7,480 27,150 BDL BDL 312 BDL 605 2,830 1010 253
5/29/2020 6,050 8,210 1,060 5,530 20,850 BDL BDL 270 33.6 401 1,680 851 BDL
12/11/2020 6,700 9,510 1,140 6,170 23,520 BDL BDL 283 BDL 514 2,620 749 202
7/16/2021 BDL BDL BDL BDL BDL NA NA BDL BDL BDL BDL BDL BDL
12/20/2021 2,430 3,720 296 2,168 8,614 BDL BDL BDL BDL 323 1,590 235 BDL
9/24/2003 87 BDL BDL 77 164 BDL BDL BDL BDL 106 19.1 BDL BDL
2/28/2004 87.2 <1.0 <1.0 77 164.2 NA NA NA 0.23 106 19.1 NA NA
2/8/2012 37 BDL BDL 1,000 1,037 BDL BDL BDL BDL 38 BDL BDL BDL
10/13/2016 BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL 10.8 BDL BDL
5/17/2017 462 83 41 381 966 36.8 5.5 39.2 BDL 14.9 537 83 BDL
10/25/2017 710 4 38 300 1,052 6 2.3 50 BDL 24 840 110 47
6/1/2018 BDL BDL BDL BDL 0 1 BDL BDL BDL BDL 10.8 BDL BDL
6/15/2019 BDL 0.61 BDL 1.1 1.71 BDL BDL BDL BDL BDL 0.74 0.77 BDL
9/24/2003 94 184 21 125 424 BDL BDL BDL BDL 110 27.9 BDL BDL
2/27/2004 93.5 184 20.8 125.3 423.6 NA NA NA 0.18 110 27.9 NA NA
2/8/2012 400 BDL 6.9 BDL 407 3.8 BDL 18 BDL 21 BDL 50 BDL
10/13/2016 110 0.84 2.5 BDL 113 1.3 BDL 11.4 BDL 9.2 BDL 25.2 5
5/17/2017 104 BDL 3 128 235 2.6 BDL 7.2 BDL 9.2 BDL 18 5
10/25/2017 770 1 17 130 918 BDL BDL 41 BDL 41 0.65 93 16
6/1/2018 960 2,300 130 3,900 7,290 BDL BDL 230 BDL 49 13 620 190
6/15/2019 637 218 68.8 606 1529.8 BDL BDL 50.2 BDL 32.5 BDL 152 38.2
12/4/2019 7 0.83 BDL BDL 7.83 BDL BDL BDL BDL BDL BDL 2.5 0.69
5/29/2020 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL
10/13/2016 BDL BDL BDL BDL 0 46.6 7.8 BDL BDL BDL BDL BDL BDL
5/17/2017 BDL BDL BDL BDL 0 33.6 5.5 BDL BDL BDL BDL BDL BDL
10/25/2017 BDL BDL BDL BDL 0 66 9.6 BDL BDL BDL BDL BDL BDL
6/1/2018 BDL BDL BDL BDL 0 4.1 0.5 BDL BDL BDL BDL BDL BDL
6/15/2019 0.57 1.1 BDL BDL 1.67 9.9 2.7 BDL BDL BDL BDL BDL BDL
12/5/2019 16.6 BDL BDL BDL 16.6 1.8 BDL BDL BDL BDL BDL BDL BDL
5/27/2020 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL
Notes:
EDB = 1,2-Dibromoethane
MTBE = Methyl-tert-butyl-ether
PCE = Tetrachloroethylene
TCE = Trichloroethylene
N/A = Not Applicable
Bold and Highlighted values exceed the GCL Standards
NSE = No Standard Established
All results reported in micrograms per liter (ug/l)
GCL Standard = NC Gross Contamination Levels for groundwater.
BDL = Below Detection Limits
NA = Not Analyzed
DW-1
VEW-4
DW-2
DW-3
Appendix C2 - Groundwater Analytical Data
Groundwater Monitoring and Sampling Report - 2H2022
Former Gant Oil Company #823
4325 Old Rural Hall Road,
Winston-Salem, North Carolina
Well ID Date
Sampled
1,2-
Dichloropropane Acetone Bromodichlorom
ethane Chloroform cis-1,2-
Dichloroethene
Diisopropyl Ether
(DIPE)Isopropylbenzene Lead (3030C)Methyl Butyl
Ketone
Methyl Ethyl
Ketone
Methyl Isobutyl
Ketone
NC GCL Standard 600 600,000 NSE 70,000 70,000 70,000 25,000 15,000 NSE 4,000,000 100,000
5/4/2003 NA 2,940 NA <5 NA NA 68.9 <5 NA NA NA
9/24/2003 NA 2,820 NA <10 NA NA 100 6.9 NA NA NA
2/8/2012 NA NA NA BDL NA 100 96 BDL 38 120 56
5/4/2003 NA <200 NA <20 NA NA 162 <5 NA NA NA
9/24/2003 NA <200 NA <20 NA NA 131 7.45 NA NA NA
2/8/2012 NA NA NA BDL NA BDL BDL BDL BDL BDL BDL
5/4/2003 NA <100 NA <10 NA NA 189 <5 NA NA NA
9/24/2003 NA <200 NA <20 NA NA 158 NA NA NA NA
2/8/2012 NA NA NA BDL NA BDL 140 BDL 77 BDL BDL
10/13/2016 NA NA NA BDL NA BDL 129 75.3 NA NA NA
5/17/2017 NA NA NA NA NA BDL 84.1 NA NA NA NA
10/26/2017 NA BDL NA NA NA NA 200 NA 110 NA 38
5/31/2018 NA BDL NA BDL NA BDL 140 NA 70 NA BDL
6/15/2019 NA NA NA NA NA NA NA NA NA NA NA
12/4/2019 BDL NA BDL BDL BDL BDL 128 NA NA NA NA
5/27/2020 BDL NA BDL BDL BDL BDL 103 NA NA NA NA
12/10/2020 BDL NA BDL BDL BDL BDL 97.6 NA NA NA NA
9/24/2003 NA <10 NA 1.2 NA NA <1 NA NA NA NA
2/8/2012 NA NA NA 0.96 NA BDL BDL BDL BDL BDL BDL
9/24/2003 NA 14.2 NA <1 NA NA <1 NA NA NA NA
2/8/2012 NA NA NA 0.26 NA BDL BDL BDL BDL BDL BDL
10/13/2016 NA NA NA BDL NA BDL BDL 16.6 NA NA NA
5/17/2017 NA NA NA NA NA BDL BDL NA NA NA NA
10/26/2017 NA BDL NA NA NA NA BDL NA BDL NA BDL
5/31/2018 NA BDL NA BDL NA BDL BDL NA BDL NA BDL
6/15/2019 BDL NA BDL BDL BDL BDL BDL NA NA NA NA
9/24/2003 NA <10 NA <1 NA NA 23.4 NA NA NA NA
2/8/2012 NA NA NA BDL NA BDL 25 BDL BDL BDL BDL
10/13/2016 NA NA NA BDL NA 3.9 BDL 62.6 NA NA NA
5/17/2017 NA NA NA NA NA 24.8 11.4 NA NA NA NA
10/26/2017 NA BDL NA NA NA NA 23 NA BDL NA 2
5/31/2018 NA 23 NA BDL NA BDL 1.7 NA 1.5 NA 2.9
9/24/2003 NA 150 NA <1 NA NA 42 NA NA NA NA
2/8/2012 NA NA NA BDL NA BDL 27 BDL BDL BDL BDL
10/13/2016 NA NA NA BDL NA BDL 23.5 21.2 NA NA NA
5/17/2017 NA NA NA NA NA BDL 31.4 NA NA NA NA
10/26/2017 NA 22 NA NA NA NA 76 NA BDL NA BDL
5/31/2018 NA 23 NA BDL NA BDL 17 NA BDL NA 1.6
6/15/2019 BDL NA BDL BDL BDL BDL 6.6 NA NA NA NA
12/6/2019 BDL NA BDL BDL BDL BDL 7.7 NA NA NA NA
5/27/2020 BDL NA BDL BDL BDL BDL 9.5 NA NA NA NA
12/10/2020 BDL NA BDL BDL BDL BDL 9.7 NA NA NA NA
9/24/2003 NA <10 NA <1 NA NA <1 NA NA NA NA
2/8/2012 NA NA NA NA NA NA NA BDL NA NA NA
10/13/2016 NA NA NA BDL NA BDL BDL BDL NA NA NA
5/17/2017 NA NA NA NA NA BDL BDL NA NA NA NA
10/26/2017 NA BDL NA NA NA NA BDL NA BDL NA BDL
5/31/2018 NA BDL NA BDL NA BDL BDL NA BDL NA BDL
12/4/2019 BDL NA BDL BDL BDL BDL BDL NA NA NA NA
MW-1
MW-2
MW-3
MW-4
MW-7
MW-5
MW-6
MW-8
Appendix C2 - Groundwater Analytical Data
Groundwater Monitoring and Sampling Report - 2H2022
Former Gant Oil Company #823
4325 Old Rural Hall Road,
Winston-Salem, North Carolina
Well ID Date
Sampled
1,2-
Dichloropropane Acetone Bromodichlorom
ethane Chloroform cis-1,2-
Dichloroethene
Diisopropyl Ether
(DIPE)Isopropylbenzene Lead (3030C)Methyl Butyl
Ketone
Methyl Ethyl
Ketone
Methyl Isobutyl
Ketone
NC GCL Standard 600 600,000 NSE 70,000 70,000 70,000 25,000 15,000 NSE 4,000,000 100,000
9/24/2003 NA 76.2 NA <1 NA NA <1 NA NA NA NA
2/8/2012 NA NA NA BDL NA BDL BDL BDL BDL BDL BDL
10/13/2016 NA NA NA BDL 0.93 BDL BDL 175 NA NA NA
5/17/2017 NA NA NA NA NA BDL BDL NA NA NA NA
10/26/2017 NA BDL NA NA NA NA BDL NA BDL NA BDL
5/31/2018 NA BDL NA BDL BDL BDL BDL NA BDL NA BDL
12/4/2019 BDL NA BDL BDL BDL BDL BDL NA NA NA NA
5/29/2020 BDL NA BDL BDL BDL BDL BDL NA NA NA NA
9/24/2003 NA <10 NA <1 NA NA <1 <5 NA NA NA
2/8/2012 NA NA NA BDL NA BDL BDL BDL BDL BDL BDL
10/13/2016 NA NA NA BDL BDL BDL BDL 5.1 NA NA NA
5/17/2017 NA NA NA NA NA BDL BDL NA NA NA NA
10/26/2017 NA 5 NA NA NA NA BDL NA BDL NA BDL
5/31/2018 NA 5 NA BDL BDL BDL BDL NA BDL NA BDL
12/5/2019 BDL NA BDL BDL BDL BDL BDL NA NA NA NA
5/29/2020 BDL NA BDL BDL BDL BDL BDL NA NA NA NA
9/24/2003 NA NA NA NA NA NA NA NA NA NA NA
2/25/2004 NA <1000 NA NA NA NA <100 <5 NA NA NA
2/8/2012 NA NA NA NA NA BDL 4,300 BDL BDL NA BDL
10/13/2016 NA NA NA BDL BDL BDL BDL BDL NA NA NA
9/24/2003 NA NA NA NA NA NA NA NA NA NA NA
2/25/2004 NA 300 NA NA NA NA <10 <5 NA NA NA
2/8/2012 NA NA NA NA NA BDL BDL BDL 180 BDL 130
10/13/2016 NA NA NA BDL BDL BDL 9.7 182 NA NA NA
5/17/2017 NA NA NA NA NA BDL 23.7 NA NA NA NA
10/26/2017 NA BDL NA NA NA NA 13 NA 1.3 NA 7.8
5/31/2018 NA BDL NA BDL BDL BDL 19 NA BDL NA 11
10/13/2016 NA NA NA BDL BDL 77.7 18.3 9.5 NA NA NA
5/17/2017 NA NA NA NA NA 59 26.7 NA NA NA NA
10/26/2017 NA 84 NA NA NA NA 53 NA 38 NA 27
5/31/2018 NA 15 NA BDL 1.8 38 38 NA 3.2 NA 4.1
6/15/2019 BDL NA BDL BDL BDL 7 4 NA NA NA NA
12/5/2019 BDL NA BDL BDL BDL BDL 11 NA NA NA NA
5/29/2020 BDL NA BDL BDL BDL 2 3.0 NA NA NA NA
12/10/2020 BDL NA BDL BDL BDL BDL 9.1 NA NA NA NA
10/13/2016 NA NA NA NA NA BDL BDL 30.9 NA NA NA
5/17/2017 NA NA NA NA NA BDL 108 NA NA NA NA
10/26/2017 NA NA NA NA NA NA 160 NA BDL NA BDL
5/31/2018 NA BDL BDL BDL BDL BDL 160 NA 75 BDL BDL
6/15/2019 BDL NA BDL BDL BDL BDL 104 NA NA NA NA
12/4/2019 BDL NA BDL BDL BDL 58.6 102 NA NA NA NA
5/27/2020 BDL NA BDL BDL BDL 90.4 101 NA NA NA NA
12/11/2020 BDL NA BDL BDL BDL 156 107 NA NA NA NA
MW-9
MW-10
MW-11
MW-12
MW-13
MW-14
Appendix C2 - Groundwater Analytical Data
Groundwater Monitoring and Sampling Report - 2H2022
Former Gant Oil Company #823
4325 Old Rural Hall Road,
Winston-Salem, North Carolina
Well ID Date
Sampled
1,2-
Dichloropropane Acetone Bromodichlorom
ethane Chloroform cis-1,2-
Dichloroethene
Diisopropyl Ether
(DIPE)Isopropylbenzene Lead (3030C)Methyl Butyl
Ketone
Methyl Ethyl
Ketone
Methyl Isobutyl
Ketone
NC GCL Standard 600 600,000 NSE 70,000 70,000 70,000 25,000 15,000 NSE 4,000,000 100,000
10/13/2016 NA NA NA NA NA BDL BDL 10.1 NA NA NA
5/17/2017 NA NA NA NA NA 49.8 375 NA NA NA NA
10/26/2017 NA NA NA NA NA NA 240 NA 51 NA 29
5/31/2018 NA 1,500 BDL BDL BDL 210 140 NA 280 670 140
6/15/2019 BDL NA BDL BDL BDL 8.2 4.3 NA NA NA NA
12/4/2019 BDL NA BDL BDL BDL 130.0 BDL NA NA NA NA
5/27/2020 BDL NA BDL BDL BDL 73 33.6 NA NA NA NA
12/10/2020 BDL NA BDL BDL BDL 258 82.7 NA NA NA NA
7/16/2021 BDL NA BDL BDL BDL 267 79.2 NA NA NA NA
12/20/2021 BDL NA BDL BDL BDL BDL BDL NA NA NA NA
6/7/2022 BDL NA BDL BDL BDL 244 93.2 NA NA NA NA
12/29/2022 BDL 1,360 BDL BDL BDL 208 BDL NA NA NA NA
10/13/2016 BDL NA NA NA NA BDL BDL 110 NA NA NA
5/17/2017 NA NA NA NA NA BDL BDL NA NA NA NA
10/26/2017 NA NA NA NA NA NA BDL NA BDL NA BDL
5/31/2018 NA BDL 3.1 24 4 BDL BDL NA BDL BDL BDL
12/6/2019 BDL NA 3.7 28 BDL BDL BDL NA NA NA NA
5/27/2020 BDL NA 2.3 17.4 BDL BDL BDL NA NA NA NA
10/13/2016 NA NA NA NA NA 117 54 BDL NA NA NA
5/17/2017 NA NA NA NA NA 76.9 29 NA NA NA NA
10/26/2017 NA NA NA NA NA NA 19 NA BDL NA BDL
5/31/2018 NA BDL BDL BDL BDL 76 26 NA 11 BDL 15
10/13/2016 NA NA NA NA NA 112 56.6 234 NA NA NA
5/17/2017 NA NA NA NA NA 101 71.8 NA NA NA NA
10/26/2017 NA NA NA NA NA NA 39 NA 23 NA BDL
5/31/2018 NA 56 BDL BDL BDL 250 53 NA 24 BDL 26
6/15/2019 BDL NA BDL BDL BDL 216 41.1 NA NA NA NA
12/6/2019 BDL NA BDL BDL BDL 181 70.3 NA NA NA NA
5/29/2020 BDL NA BDL BDL BDL 226 58.1 NA NA NA NA
12/11/2020 BDL NA BDL BDL BDL 195 83.5 NA NA NA NA
10/13/2016 NA NA NA NA NA BDL 60 BDL NA NA NA
5/17/2017 NA NA NA NA NA BDL 41.4 NA NA NA NA
10/26/2017 NA 71 NA NA NA NA 110 NA 22 NA 18
5/31/2018 NA 57 NA NA BDL BDL 110 NA 25 BDL 30
6/15/2019 BDL NA BDL BDL BDL BDL 86.8 NA NA NA NA
12/6/2019 BDL NA BDL BDL BDL BDL BDL NA NA NA NA
5/29/2020 BDL NA BDL BDL BDL BDL 75.5 NA NA NA NA
12/11/2020 BDL NA BDL BDL BDL BDL BDL NA NA NA NA
10/13/2016 NA NA NA NA NA BDL BDL BDL NA NA NA
5/17/2017 NA NA NA NA NA BDL BDL NA NA NA NA
10/26/2017 NA BDL NA NA NA NA BDL NA BDL NA BDL
5/31/2018 NA BDL NA NA BDL BDL BDL NA BDL BDL BDL
6/15/2019 BDL NA BDL BDL BDL BDL BDL NA NA NA NA
12/6/2019 BDL NA BDL BDL BDL BDL BDL NA NA NA NA
5/29/2020 BDL NA BDL BDL BDL BDL BDL NA NA NA NA
MW-19
MW-20
MW-15
MW-18
MW-16
MW-17
Appendix C2 - Groundwater Analytical Data
Groundwater Monitoring and Sampling Report - 2H2022
Former Gant Oil Company #823
4325 Old Rural Hall Road,
Winston-Salem, North Carolina
Well ID Date
Sampled
1,2-
Dichloropropane Acetone Bromodichlorom
ethane Chloroform cis-1,2-
Dichloroethene
Diisopropyl Ether
(DIPE)Isopropylbenzene Lead (3030C)Methyl Butyl
Ketone
Methyl Ethyl
Ketone
Methyl Isobutyl
Ketone
NC GCL Standard 600 600,000 NSE 70,000 70,000 70,000 25,000 15,000 NSE 4,000,000 100,000
9/24/2003 NA 54.8 NA 1.7 NA NA 3 NA NA NA NA
2/8/2012 NA NA NA NA NA 220 61 BDL BDL NA 48
10/13/2016 NA NA NA NA NA 798 44 10.9 NA NA NA
5/17/2017 NA NA NA NA NA 665 52.2 NA NA NA NA
10/25/2017 NA 770 NA NA NA NA 71 NA 140 NA 160
6/1/2018 NA 950 NA NA BDL 1,400 37 NA 170 660 160
6/15/2019 BDL NA BDL BDL BDL 839 59.3 NA NA NA NA
12/4/2019 BDL NA BDL BDL BDL 770 68.3 NA NA NA NA
5/29/2020 BDL NA BDL BDL BDL 636 59.7 NA NA NA NA
12/11/2020 BDL NA BDL BDL BDL 761 58.3 NA NA NA NA
7/16/2021 BDL NA BDL BDL BDL 761 BDL NA NA NA NA
12/20/2021 BDL NA BDL BDL BDL 474 BDL NA NA NA NA
9/24/2003 NA NA NA NA NA NA NA NA NA NA NA
2/28/2004 NA NA NA NA NA NA 9.9 <5 NA NA NA
2/8/2012 NA NA NA NA NA 94 BDL BDL BDL NA BDL
10/13/2016 NA NA NA NA NA 0.95 BDL 10.2 NA NA NA
5/17/2017 NA NA NA NA NA 40.5 6.6 NA NA NA NA
10/25/2017 NA BDL NA NA NA NA 9.4 NA BDL NA BDL
6/1/2018 NA BDL NA NA BDL BDL BDL NA BDL BDL BDL
6/15/2019 BDL NA BDL BDL BDL BDL BDL NA NA NA NA
9/24/2003 NA NA NA NA NA NA NA NA NA NA NA
2/27/2004 NA NA NA NA NA NA 3.2 <5 NA NA NA
2/8/2012 NA NA NA NA NA 5.2 4.5 BDL BDL NA BDL
10/13/2016 NA NA NA NA NA 2.5 BDL BDL NA NA NA
5/17/2017 NA NA NA NA NA 1.7 1.6 NA NA NA NA
10/25/2017 NA BDL NA NA NA NA 7.7 NA BDL NA BDL
6/1/2018 NA BDL NA NA BDL 18 10 NA BDL BDL BDL
6/15/2019 BDL NA BDL BDL BDL 7.8 11.2 NA NA NA NA
12/4/2019 BDL NA BDL BDL BDL BDL BDL NA NA NA NA
5/29/2020 BDL NA BDL BDL BDL BDL BDL NA NA NA NA
10/13/2016 0.58 NA NA NA NA BDL BDL BDL NA NA NA
5/17/2017 0.52 NA NA NA 5 BDL BDL NA NA NA NA
10/25/2017 NA NA NA NA NA NA BDL NA NA NA NA
6/1/2018 BDL 5.5 NA NA BDL BDL BDL NA NA NA NA
6/15/2019 BDL NA BDL BDL 1.6 BDL BDL NA NA NA NA
12/5/2019 BDL NA BDL BDL BDL BDL BDL NA NA NA NA
5/27/2020 BDL NA BDL BDL BDL BDL BDL NA NA NA NA
Notes:
All results reported in micrograms per liter (ug/l)
GCL Standard = NC Gross Contamination Levels for groundwater.
BDL = Below Detection Limits
Bold values exceed the GCL Standards
NSE = No Standard Established
NA = Not Analyzed
DW-1
DW-3
VEW-4
DW-2
Appendix C3 - Groundwater Analytical Data
Groundwater Monitoring and Sampling Report - 2H2022
Former Gant Oil Company #823
4325 Old Rural Hall Road,
Winston-Salem, North Carolina
Well ID Date
Sampled
Methylene
Chloride n-butylbenzene n-propylbenzene p-
Isopropyltoluene 2-Hexanone sec-
butylbenzene Styrene tert-
butylbenzene Isopropyl Ether Carbon disulfide
NC GCL Standard 5,000 6,900 30,000 NSE 28,000 8,500 70,000 15,000 70,000 410
5/4/2003 NA 22.9 146 NA 243 6.4 NA NA 1,110 <5
9/24/2003 NA 42.7 231 NA 276 10.4 NA NA NA <10
2/8/2012 NA 44 210 29 NA 20 BDL NA NA NA
5/4/2003 NA 58.1 352 NA <100 <20 NA NA 222 <20
9/24/2003 NA 42.4 276 NA <100 <20 NA NA NA <20
2/8/2012 NA BDL 460 BDL NA BDL BDL NA NA NA
5/4/2003 NA 82.7 472 NA <50 27.1 NA NA 22.9 <10
9/24/2003 NA 89.9 411 NA 423 <20 NA NA NA <20
2/8/2012 NA 59 380 BDL NA BDL BDL NA NA NA
10/13/2016 NA BDL 374 BDL NA BDL BDL NA NA NA
5/17/2017 NA BDL NA NA NA NA NA NA NA NA
10/26/2017 NA NA NA NA NA 34 16 BDL NA NA
5/31/2018 NA 63 370 13 NA 23 13 BDL NA NA
12/4/2019 BDL BDL BDL NA NA BDL BDL BDL BDL NA
5/27/2020 BDL BDL BDL NA NA BDL BDL BDL NA NA
12/10/2020 BDL BDL BDL NA NA BDL BDL BDL NA NA
9/24/2003 NA <1 <1 NA <5 <1 NA NA NA <1
2/8/2012 NA BDL BDL BDL NA BDL BDL NA NA NA
9/24/2003 NA <1 <1 NA <5 <1 NA NA NA <1
2/8/2012 NA BDL BDL BDL NA BDL BDL NA NA NA
10/13/2016 NA BDL BDL BDL NA BDL BDL NA NA NA
5/17/2017 NA BDL NA NA NA NA NA NA NA NA
10/26/2017 NA NA NA NA NA BDL BDL BDL NA NA
5/31/2018 NA BDL BDL BDL NA BDL BDL BDL NA NA
6/15/2019 BDL BDL BDL NA NA BDL BDL BDL BDL NA
9/24/2003 NA 10.5 32.1 NA NA 5.6 NA NA NA <1
2/8/2012 NA 8.3 43 NA NA 9.3 BDL NA NA NA
10/13/2016 NA BDL 25.9 NA NA 8.9 BDL NA NA NA
5/17/2017 NA BDL NA NA NA NA NA NA NA NA
10/26/2017 NA NA NA NA NA 5.5 BDL BDL NA NA
5/31/2018 NA BDL 1.7 NA NA 0.56 BDL BDL NA NA
9/24/2003 NA 36.4 67.4 NA NA 26 NA NA NA <1
2/8/2012 NA 36 50 NA NA 46 BDL NA NA NA
10/13/2016 NA BDL 48.3 NA NA 30.6 BDL NA NA NA
5/17/2017 NA BDL NA NA NA NA NA NA NA NA
10/26/2017 NA NA NA NA NA 160 BDL 12 NA NA
5/31/2018 NA 24 27 NA NA 15 BDL 1.6 NA NA
6/15/2019 BDL BDL BDL NA NA BDL BDL BDL BDL NA
12/6/2019 BDL BDL BDL NA NA BDL BDL BDL BDL NA
5/27/2020 BDL BDL BDL NA NA BDL BDL BDL NA NA
12/10/2020 BDL BDL BDL NA NA BDL BDL BDL NA NA
9/24/2003 NA <1 <1 NA NA <1 NA NA NA <1
2/8/2012 NA NA NA NA NA NA NA NA NA NA
10/13/2016 NA BDL BDL NA NA BDL BDL NA NA NA
5/17/2017 NA BDL NA NA NA NA NA NA NA NA
10/26/2017 NA NA NA NA NA BDL BDL BDL NA NA
5/31/2018 NA BDL BDL NA NA BDL BDL BDL NA NA
12/4/2019 BDL BDL BDL NA NA BDL BDL BDL BDL NA
MW-1
MW-2
MW-4
MW-6
MW-5
MW-3
MW-7
MW-8
Appendix C3 - Groundwater Analytical Data
Groundwater Monitoring and Sampling Report - 2H2022
Former Gant Oil Company #823
4325 Old Rural Hall Road,
Winston-Salem, North Carolina
Well ID Date
Sampled
Methylene
Chloride n-butylbenzene n-propylbenzene p-
Isopropyltoluene 2-Hexanone sec-
butylbenzene Styrene tert-
butylbenzene Isopropyl Ether Carbon disulfide
NC GCL Standard 5,000 6,900 30,000 NSE 28,000 8,500 70,000 15,000 70,000 410
9/24/2003 NA <1 <1 NA NA <1 NA NA NA <1
2/8/2012 NA BDL BDL NA NA BDL BDL NA NA NA
10/13/2016 NA BDL BDL NA NA BDL NA NA NA NA
5/17/2017 NA BDL NA NA NA NA NA NA NA NA
10/26/2017 NA NA NA NA NA BDL NA NA NA NA
5/31/2018 NA BDL BDL NA NA BDL NA NA NA NA
12/4/2019 BDL BDL BDL NA NA BDL BDL BDL BDL NA
5/29/2020 BDL BDL BDL NA NA BDL BDL BDL NA NA
9/24/2003 NA <1 <1 NA NA <1 NA NA NA <1
2/8/2012 NA BDL BDL NA NA BDL BDL NA NA NA
10/13/2016 NA BDL BDL NA NA BDL NA NA NA NA
5/17/2017 NA BDL NA NA NA NA NA NA NA NA
10/26/2017 NA NA NA NA NA BDL NA NA NA NA
5/31/2018 NA BDL BDL NA NA BDL NA NA NA NA
12/5/2019 BDL BDL BDL NA NA BDL BDL BDL BDL NA
5/29/2020 BDL BDL BDL NA NA BDL BDL BDL NA NA
9/24/2003 NA NA NA NA NA NA NA NA NA NA
2/25/2004 NA NA NA NA NA NA NA NA NA <100
2/8/2012 NA 10,000 27,000 NA NA 5,200 BDL NA NA NA
10/13/2016 NA BDL BDL NA NA BDL NA NA NA NA
9/24/2003 NA NA NA NA NA NA NA NA NA NA
2/25/2004 NA NA NA NA NA NA NA NA NA <10
2/8/2012 NA BDL 98 NA NA BDL BDL NA NA NA
10/13/2016 NA BDL 16.9 NA NA BDL NA NA NA NA
5/17/2017 NA BDL NA NA NA NA NA NA NA NA
10/26/2017 NA NA NA NA NA 2.5 NA NA NA NA
5/31/2018 NA BDL 36 NA NA 15 NA NA NA NA
10/13/2016 NA BDL 24.3 NA NA BDL NA NA NA NA
5/17/2017 NA BDL NA NA NA NA NA NA NA NA
10/26/2017 NA NA NA NA NA 6.9 NA NA NA NA
5/31/2018 NA 9 18 NA NA 3.5 NA NA NA NA
6/15/2019 BDL BDL 5.2 NA NA BDL BDL BDL 6.8 NA
12/5/2019 BDL 5 23.7 NA NA BDL BDL BDL BDL NA
5/29/2020 BDL BDL BDL NA NA BDL BDL BDL NA NA
12/10/2020 BDL BDL BDL NA NA BDL BDL BDL NA NA
10/13/2016 519 BDL 305 NA NA BDL BDL NA NA NA
5/17/2017 NA BDL NA NA NA NA NA NA NA NA
10/26/2017 NA NA NA NA NA BDL BDL NA NA NA
5/31/2018 BDL BDL 390 NA NA 140 BDL NA NA NA
6/15/2019 BDL BDL 252 NA NA BDL BDL BDL BDL NA
12/4/2019 BDL BDL 259 NA NA BDL BDL BDL 58.6 NA
5/27/2020 BDL BDL BDL NA NA BDL BDL BDL NA NA
12/11/2020 BDL BDL BDL NA NA BDL BDL BDL NA NA
MW-14
MW-13
MW-9
MW-10
MW-11
MW-12
Appendix C3 - Groundwater Analytical Data
Groundwater Monitoring and Sampling Report - 2H2022
Former Gant Oil Company #823
4325 Old Rural Hall Road,
Winston-Salem, North Carolina
Well ID Date
Sampled
Methylene
Chloride n-butylbenzene n-propylbenzene p-
Isopropyltoluene 2-Hexanone sec-
butylbenzene Styrene tert-
butylbenzene Isopropyl Ether Carbon disulfide
NC GCL Standard 5,000 6,900 30,000 NSE 28,000 8,500 70,000 15,000 70,000 410
10/13/2016 BDL BDL 1,660 NA NA BDL BDL NA NA NA
5/17/2017 NA BDL NA NA NA NA NA NA NA NA
10/26/2017 NA NA NA NA NA 82 25 NA NA NA
5/31/2018 BDL 51 390 NA NA 150 BDL NA NA NA
6/15/2019 BDL BDL 10.2 NA NA BDL BDL BDL 8.2 NA
12/4/2019 BDL BDL BDL NA NA BDL BDL BDL 130 NA
5/27/2020 BDL BDL BDL NA NA BDL BDL BDL NA NA
12/10/2020 BDL BDL BDL NA NA BDL BDL BDL NA NA
7/16/2021 BDL BDL BDL NA NA BDL BDL BDL NA NA
12/20/2021 BDL BDL BDL NA NA BDL BDL BDL NA NA
6/7/2022 BDL BDL 227 NA NA BDL BDL BDL NA NA
12/29/2022 BDL BDL NA NA NA NA BDL NA NA NA
10/13/2016 BDL BDL BDL NA NA BDL BDL NA NA NA
5/17/2017 NA BDL NA NA NA NA NA NA NA NA
10/26/2017 NA NA NA NA NA BDL BDL NA NA NA
5/31/2018 BDL BDL BDL NA NA BDL BDL NA NA NA
12/6/2019 BDL BDL BDL NA NA BDL BDL BDL BDL NA
5/27/2020 BDL BDL BDL NA NA BDL BDL BDL NA NA
10/13/2016 BDL BDL 127 NA NA BDL BDL NA NA NA
5/17/2017 NA BDL NA NA NA NA NA NA NA NA
10/26/2017 NA NA NA NA NA BDL BDL NA NA NA
5/31/2018 BDL 8.3 44 NA NA 16 BDL NA NA NA
10/13/2016 106 BDL 161 NA NA BDL BDL NA NA NA
5/17/2017 NA BDL NA NA NA NA NA NA NA NA
10/26/2017 NA NA NA NA NA 5.1 8.5 NA NA NA
5/31/2018 BDL 31 140 NA NA 23 BDL NA NA NA
6/15/2019 BDL BDL BDL NA NA BDL BDL BDL 216 NA
12/6/2019 BDL BDL 224 NA NA BDL BDL BDL 181 NA
5/29/2020 BDL BDL BDL NA NA BDL BDL BDL NA NA
12/11/2020 BDL BDL BDL NA NA BDL BDL BDL NA NA
10/13/2016 NA BDL 64.3 NA NA BDL BDL NA NA NA
5/17/2017 NA 16.8 NA NA NA NA NA NA NA NA
10/26/2017 NA NA NA NA NA 14 BDL NA NA NA
5/31/2018 NA BDL 220 NA NA 24 BDL NA NA NA
6/15/2019 BDL BDL BDL NA NA BDL BDL BDL BDL NA
12/6/2019 BDL BDL BDL NA NA BDL BDL BDL BDL NA
5/29/2020 BDL BDL BDL NA NA BDL BDL BDL NA NA
12/11/2020 BDL BDL 273 NA NA BDL BDL BDL NA NA
10/13/2016 NA BDL BDL NA NA BDL BDL NA NA NA
5/17/2017 NA BDL NA NA NA NA NA NA NA NA
10/26/2017 NA NA NA NA NA BDL BDL NA NA NA
5/31/2018 NA BDL BDL NA NA BDL BDL NA NA NA
6/15/2019 BDL BDL BDL NA NA BDL BDL BDL BDL NA
12/6/2019 BDL BDL BDL NA NA BDL BDL BDL BDL NA
5/29/2020 BDL BDL BDL NA NA BDL BDL BDL NA NA
MW-15
MW-20
MW-18
MW-19
MW-16
MW-17
Appendix C3 - Groundwater Analytical Data
Groundwater Monitoring and Sampling Report - 2H2022
Former Gant Oil Company #823
4325 Old Rural Hall Road,
Winston-Salem, North Carolina
Well ID Date
Sampled
Methylene
Chloride n-butylbenzene n-propylbenzene p-
Isopropyltoluene 2-Hexanone sec-
butylbenzene Styrene tert-
butylbenzene Isopropyl Ether Carbon disulfide
NC GCL Standard 5,000 6,900 30,000 NSE 28,000 8,500 70,000 15,000 70,000 410
9/24/2003 NA <1 3.1 NA NA <1 NA NA NA 1.9
2/8/2012 NA BDL 120 NA NA BDL BDL NA NA NA
10/13/2016 NA BDL 92.4 NA NA BDL BDL NA NA NA
5/17/2017 NA BDL NA NA NA NA NA NA NA NA
10/25/2017 NA NA NA NA NA BDL BDL NA NA NA
6/1/2018 NA BDL 43 NA NA BDL BDL NA NA NA
6/15/2019 BDL BDL 136 NA NA BDL BDL BDL 839 NA
12/4/2019 BDL BDL 165 NA NA BDL BDL BDL 770 NA
5/29/2020 BDL 25.2 BDL NA NA BDL BDL BDL NA NA
12/11/2020 BDL BDL 134 NA NA BDL BDL BDL NA NA
7/16/2021 BDL BDL BDL NA NA BDL BDL BDL NA NA
12/20/2021 BDL BDL BDL NA NA BDL BDL BDL NA NA
9/24/2003 NA NA NA NA NA NA NA NA NA NA
2/28/2004 NA NA NA NA NA NA NA NA NA NA
2/8/2012 NA BDL BDL NA NA BDL BDL NA NA NA
10/13/2016 NA BDL BDL NA NA BDL BDL NA NA NA
5/17/2017 NA BDL NA NA NA NA NA NA NA NA
10/25/2017 NA NA NA NA NA 1.6 BDL NA NA NA
6/1/2018 NA BDL BDL NA NA BDL BDL NA NA NA
6/15/2019 BDL BDL BDL NA NA BDL BDL BDL BDL NA
2/8/2012 NA 3.7 3 NA NA BDL BDL NA NA NA
10/13/2016 NA BDL 1.1 NA NA BDL BDL NA NA NA
5/17/2017 NA BDL NA NA NA NA NA NA NA NA
10/25/2017 NA NA NA NA NA 0.58 BDL NA NA NA
6/1/2018 NA BDL 13 NA NA BDL BDL NA NA NA
6/15/2019 BDL BDL 14.6 NA NA BDL BDL BDL 7.8 NA
12/4/2019 BDL BDL BDL NA NA BDL BDL BDL BDL NA
5/29/2020 BDL BDL BDL NA NA BDL BDL BDL NA NA
10/13/2016 NA BDL BDL NA NA BDL 6.4 NA NA NA
5/17/2017 NA BDL NA NA NA NA NA NA NA NA
10/25/2017 NA NA NA NA NA BDL NA NA NA NA
6/1/2018 NA BDL BDL NA NA BDL NA NA NA NA
6/15/2019 BDL BDL BDL NA NA BDL BDL BDL BDL NA
12/5/2019 BDL BDL BDL NA NA BDL BDL BDL BDL NA
5/27/2020 BDL BDL BDL NA NA BDL BDL BDL NA NA
Notes:
All results reported in micrograms per liter (ug/l)
2L Standard = NCAC listed 2L Standard for groundwater.
GCL Standard = NC Gross Contamination Levels for groundwater.
BDL = Below Detection Limits
Bold and Highlighted values exceed the GCL Standards
NSE = No Standard Established
VEW-4
DW-3
DW-1
DW-2
NA = Not Analyzed

Arcadis G&M of North Carolina, Inc.
5420 Wade Park Blvd, Suite 350
Raleigh, North Carolina 27607
Tel [phone]
Fax [phone]

www.arcadis.com