MO-85747_85747_CA_MRP_20230628_Groundwater Monitoring Report

Apex Companies, LLC  5900 Northwoods Business Parkway, Suite 5900‐O  Charlotte, NC 28269  T 704.799.6390  apexcos.com 
June 28, 2023
Mr. Ryan Mills
North Carolina Department of Environmental Quality
Division of Waste Management
UST Section - Corrective Action Branch
610 East Center Avenue, Suite 301
Mooresville, North Carolina 28115
Re: 2023 Annual Groundwater Monitoring Report
Freeze Road Site
Enochville, Rowan County, North Carolina
NCDEQ Incident Number 85747
Dear Mr. Mills:
On behalf of Colonial Pipeline Company, Apex Companies, LLC (Apex, dba Maryland Apex
Engineering, P.C.) has prepared the attached 2023 Annual Groundwater Monitoring Report for
the Colonial Pipeline Company’s Freeze Road site covering the period of May 2022 through
May 2023.
If you have any questions or concerns, please do not hesitate to contact the undersigned at
[phone].
Sincerely,
Apex Companies, LLC
Andrew Street, CHMM, RSM Tom Naumann P.G.
Senior Project Manager Project Manager
NC License No. 2405
Enclosure
cc: Maribeth Hughes, Colonial Pipeline Company
Jeff Morrison, Colonial Pipeline Company
Prepared for:
Colonial Pipeline Company
P.O. Box 87
Paw Creek, North Carolina 25130
2023 Annual Groundwater Monitoring
Report
May 2022 - May 2023
Freeze Road Site
Enochville, North Carolina
NCDEQ lncident No. 85747
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APEX
5900 North Woods Business Parkway, Suite O
Charlotte, North Carolina 28269
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Jamie Humphrey
Scientist lll
Reviewed By:
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Andrew Street, CHMM, RSM
Senior Project Manager Project Manager
NC License No.2405
2405
96AFAA.6
June28,2023
Colonial Pipeline Company – Freeze Road Site June 28 20, 23
Annual Groundwater Monitoring Report Page i
Table of Contents
1.0 INTRODUCTION .................................................................................................................................... 1 
2.0 FIELD ACTIVITIES ................................................................................................................................ 1 
2.1 Groundwater Gauging .............................................................................................................. 2 
2.2 Groundwater Sampling and Analysis ....................................................................................... 2 
3.0 FINDINGS ............................................................................................................................................... 3 
3.1 Well Gauging Results and Groundwater Flow ......................................................................... 3 
3.2 Groundwater Analytical Results ............................................................................................... 3 
4.0 REMEDIATION SYSTEM OPERATION ............................................................................................... 3 
5.0 CONCLUSIONS AND RECOMMENDATIONS .................................................................................... 4 
Tables
Table 1: Groundwater Monitoring and Analysis Program
Table 2: Summary of Groundwater Elevation Data
Table 3: Summary of Groundwater Analytical Results
Figures
Figure 1: Site Location Map
Figure 2: Site Vicinity Map
Figure 3: Site Plan with Well Locations
Figure 4: Groundwater Potentiometric Surface Map Surficial Saprolite Unit (May 2023)
Figure 5: Groundwater Potentiometric Surface Map Bedrock Unit (May 2023)
Figure 6: Distribution of LNAPL May 2023
Figure 7: Benzene in Groundwater May 2023
Figure 8: Naphthalene in Groundwater May 2023
Appendices
Appendix A: Groundwater Sampling Field Logs
Appendix B: Laboratory Analytical Report
Colonial Pipeline Company – Freeze Road Site June 28 20, 23
Annual Groundwater Monitoring Report Page 1
1.0 INTRODUCTION
This report presents the results of the May 2023 annual groundwater monitoring event performed at
the Colonial Pipeline Company (CPC) Freeze Road site located approximately 1.3 miles west of
downtown Enochville, North Carolina (the ‘site’). Apex Companies, LLC (Apex, dba Maryland Apex
Engineering, P.C.), prepared this report on behalf of CPC for submittal to the North Carolina
Department of Environmental Quality (NCDEQ). A Site Location Map is provided as Figure 1. A
Site Vicinity Map, with property boundaries, is provided as Figure 2.
The site is located along a CPC right-of-way in a rural, residential area west of Enochville, North
Carolina. On May 30, 2001, CPC discovered a crack in the 36-inch No. 2 distillate line running
through the site. Approximately 400 barrels (16,800 gallons) of diesel and jet fuel were released
from the line, resulting in impacts to surrounding soil and groundwater. A Site Plan showing the
locations of the release, monitoring wells, recovery wells, and nearby water supply wells is included
as Figure 3.
Following discovery of the release, Progressive Engineering and Construction, Inc. (Progressive)
performed initial abatement and assessment activities at the site in 2001. The investigation activities
are summarized in the Comprehensive Site Assessment Report dated October 11, 2001. Based on
the results of the assessment activities, a Corrective Action Plan (CAP) was submitted to NCDEQ on
December 21, 2001. The CAP was subsequently approved by NCDEQ on January 14, 2002. The
CAP describes corrective actions at the facility to be conducted under North Carolina 15A NCAC 2L,
.0106 (c) groundwater standards (2L Standards). The corrective action objectives for the site as
described in the CAP are to: i) prevent off-site migration to downgradient receptors; ii) remove light
non-aqueous phase liquid (LNAPL) fuel to the extent practical; and iii) remediate source area soils.
Based on the risk-based rules established in October 2015 under House Bill 765, Risk Based
Corrective Action (RBCA) Rules that were previously established for releases from petroleum
underground storage tanks (USTs) became applicable to non-UST releases of petroleum. Under the
RBCA framework, corrective action objectives for impacted groundwater at the site are based on risk
classification criteria and the associated remedial goals established under North Carolina 15A NCAC
2L .0506 regulations. The risk classification for a site is based on several factors, including the
distance from the source area of a release to receptors such as surface water bodies and water
supply wells. At present, the risk classification for the site is high risk due to the presence of multiple
water supply wells within 1,000 feet (ft.) of the release. Groundwater remediation goals for sites
classified as high risk are the 2L Standards.
This report summarizes the results of annual groundwater monitoring activities completed at the site
in May 2023 and provides a summary of groundwater remediation activities during the annual
reporting period.
2.0 FIELD ACTIVITIES
The following sections provide a summary of the field methods for the annual groundwater
monitoring event conducted in May 2023. Field logs documenting the groundwater sample collection
Colonial Pipeline Company – Freeze Road Site June 28 20, 23
Annual Groundwater Monitoring Report Page 2
are provided in Appendix A. During the May 2023 sampling event, groundwater samples were
collected and analyzed for benzene, toluene, ethylbenzene, total xylenes (BTEX), methyl tert-butyl
ether (MTBE), and naphthalene. The current groundwater monitoring program is summarized in
Table 1. The current groundwater monitoring program for the site was approved by NCDEQ in a
letter dated June 14, 2012. Groundwater elevation data and laboratory analytical results for the May
2023 groundwater monitoring event are summarized in Table 2 and Table 3, respectively.
2.1 Groundwater Gauging
Prior to sampling, groundwater monitoring wells were gauged to measure the depth to groundwater
and LNAPL, if present. Upon arriving at the site, wells were opened and allowed to equilibrate.
Wells were gauged in accordance with the United States Environmental Protection Agency (EPA)
Region IV Science and Ecosystem Support Division Field Branches Quality System and Technical
Procedures. Depths to groundwater and LNAPL (if present) were measured using an electronic
oil/water interface probe capable of measuring to an accuracy of 0.01 ft. The interface probe was
thoroughly decontaminated before collecting measurements at each subsequent monitoring well.
A total of 26 monitoring wells and 25 recovery wells were gauged on May 9, 2023. Monitoring
wells MW-15, MW-18D, MW-19, MW-20D, MW-31, MW-33, and MW-40, were not gauged because
they could not be accessed or located. Monitoring well MW-41 was not gauged because the well
was covered by a wood debris pile. Recovery well RW-10 was not gauged because the lid could
not be opened. Monitoring well locations are shown on Figure 3. Well construction details are
provided in Table 1. Well gauging results are discussed in Section 3.1 and summarized in Table 2
of this report.
2.2 Groundwater Sampling and Analysis
Groundwater samples were collected from 13 of the 14 planned monitoring wells on May 9-10, 2023.
MW-30 was not sampled because the current resident would not answer the door and permission to
access the property was not granted. At each monitoring well, a baseline set of water quality
stabilization data was measured and recorded, including conductivity, dissolved oxygen (DO), pH,
oxidation-reduction potential (ORP), turbidity, and temperature. The monitoring wells were purged
and sampled using a decontaminated stainless-steel submersible pump with disposable
polyethylene tubing that was changed between wells. Pump tubing was set approximately one to
two feet below the water table for the wells screened across the water table, and at mid-point of the
screened interval for deeper wells. Water quality parameters were considered stable when specific
conductance stabilized within 3 percent, pH stabilized within 0.1 units, ORP stabilized within 10
millivolts (mV), DO stabilized within 0.3 micrograms per liter (mg/L), and turbidity stabilized within
10 percent over three consecutive measurements. Field logs documenting the groundwater
purging and sample collection are provided in Appendix A.
Once purging was completed, samples were collected in the laboratory supplied bottleware and
stored on ice in a cooler. Groundwater samples were submitted under chain of custody procedures
to Pace Analytical, Inc., a North Carolina certified laboratory. Groundwater samples were analyzed
for BTEX, MTBE, and naphthalene by EPA Method SM 6200B.
Colonial Pipeline Company – Freeze Road Site June 28 20, 23
Annual Groundwater Monitoring Report Page 3
As part of the groundwater sampling program, quality assurance/quality control (QA/QC) samples
were collected and submitted for laboratory analysis. Specifically, two blind duplicate samples, two
equipment rinse blanks, and one trip blank were submitted for laboratory analysis. Analytical results
are summarized in Table 3 and a copy of the laboratory report is provided in Appendix B.
3.0 FINDINGS
3.1 Well Gauging Results and Groundwater Flow
Groundwater gauging results from the May 2023 gauging event are summarized in Table 2. Depth
to water and top of well casing elevation data from the monitoring wells were used to calculate
groundwater potentiometric elevations relative to an on-site benchmark referenced to mean sea level
(MSL) datum. For shallow wells that are screened across the water table surface, the groundwater
potentiometric surface is approximately equal to the water table elevation.
Potentiometric surface maps for the surficial and bedrock aquifer units were developed for the site
based on the May 2023 gauging data and are presented as Figure 4 and Figure 5, respectively.
The calculated horizontal groundwater gradient for the surficial saprolite unit during the May 2023
monitoring event is approximately 0.027 ft. per foot using gauging data from the 832 ft. MSL and 844
ft. MSL equipotential contour lines in the vicinity of monitoring wells MW-35 and MW-36, respectively.
The surficial groundwater flow is generally towards the west and bedrock groundwater flow is
generally towards the northwest. The groundwater elevations and flow results observed in May 2023
were consistent with those observed during historical observations.
The distribution of LNAPL recorded during the May 2023 gauging event is depicted in Figure 6.
LNAPL was detected in two recovery wells, RW-3 and RW-8, with thicknesses of 0.02 ft and 0.05 ft
respectively. Table 2 provides the top of screen elevation for each monitoring well and recovery well
and indicates if each well screen was submerged during the May 2023 gauging event. Downgradient
migration of the LNAPL plume was not indicated by the May 2023 gauging data from the leading-
edge monitoring wells. The distribution and thickness of LNAPL across the site has decreased
significantly since monitoring began in 2001.
3.2 Groundwater Analytical Results
Groundwater analytical results from the May 2023 monitoring event are summarized in Table 3. The
laboratory analytical data report and chain of custody records for the May 2023 sampling event are
provided in Appendix B. The distribution of benzene and naphthalene in groundwater for the May
2023 sampling event are presented in Figure 7 and Figure 8, respectively. All other constituents of
concern that were detected during the May 2023 sampling event were below their applicable 2L
Standards.
4.0 REMEDIATION SYSTEM OPERATION
The biosparging system has operated at the site since 2004 to enhance hydrocarbon degradation
rates and prevent downgradient migration of dissolved-phase petroleum constituents. Low volumes
of air are injected into 32 converted recovery wells operating as biosparge wells. The recovery wells
Colonial Pipeline Company – Freeze Road Site June 28 20, 23
Annual Groundwater Monitoring Report Page 4
were converted to biosparge wells by removing the LNAPL recovery tubing and associated air supply
hoses and connecting to an existing high-density polyethylene (HDPE) branch stub-up for
compressed air. Each converted well head is equipped with a flow shutoff valve, a variable area flow
meter/controller, and a liquid filled pressure gauge. A galvanized drop pipe fitted with a 4-inch
diameter packer is installed in each biosparge well, which forces compressed air through the
formation and prevents short-circuiting of air through the well casing. The flow rate of the air into the
system ranges from 0.5 cubic ft. per minute (cfm) to 2 cfm.
Apex performed a site visit on April 22, 2022 to determine the operational status of the system at the
Freeze Road Site. The system was run for a total of two hours, but due to high temp alarms Apex
personnel shut the system down pending repairs and service. Following servicing, the system was
restarted on March 16, 2023 and ran through the end of the reporting period.
5.0 CONCLUSIONS AND RECOMMENDATIONS
Five of 14 monitoring wells sampled (MW-8, MW-22, MW-28, MW-29D, and MW-34) exhibited
benzene and/or naphthalene concentrations above 2L Standards. Measurable LNAPL was detected
in two wells within the footprint of the historical LNAPL plume area with a maximum thickness of 0.05
feet.
The groundwater monitoring data indicates that the LNAPL plume continues to decrease in
horizontal extent and thickness, and the remaining LNAPL is not migrating. Continued operation of
the biosparge system is recommended to enhance biodegradation of dissolved-phase hydrocarbons
in groundwater, to bioremediate sorbed and residual LNAPL hydrocarbons in the phreatic zone soils,
and to prevent the migration of the hydrocarbon plume.
TABLES
Table 1
Groundwater Monitoring and Analysis Program
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Hydraulic
Monitoring
Water Quality
Monitoring
Annually Annually
Depth to Water / LNAPL BTEX, MTBE, &
Naphthalene
MW-2 40 25 - 40
MW-3 41 21 - 41
MW-4D 70 50 - 70
MW-5 25 13 - 25
MW-7D 100 80 - 100
MW-8 55 35 - 55
MW-9 50 25 - 50
MW-10 40 23 - 40
MW-11D 122 102 - 122
MW-12D 70 50 - 70
MW-13D 70 50 - 70
MW-14D 200 180 - 200
MW-15 31 21 - 31
MW-16D 75 55 - 75
MW-17D 105 75 - 105
MW-18D 215 175 - 215
MW-19 35 20 - 35
MW-20D 182 162 - 182
MW-21 54 24 - 54
MW-22 36.5 26.5 - 36.5
MW-28 49 19 - 49
MW-29D 70 50 - 70
MW-30 50 25 - 50
MW-31 50 25 - 50
MW-32 50 25 - 50
MW-33 50 20 - 50
MW-34 71 21 - 71
MW-35 46 21 - 46
MW-36 31 16 - 31
MW-37 48 28 - 48
MW-38 55 25 - 55
MW-39 55 25 - 55
MW-40 50 20 - 50
MW-41 50 25 - 55
MW-1 35 25 - 35
MW-6 40 24 - 34 *
MW-23 30 20 - 30
MW-24 29 19 - 29 *
MW-25 35 20 - 35
MW-26 40 20 - 40 *
MW-27 45 20 - 45 *
RW-1 40 20 - 40
RW-2 45 25 - 45
RW-3 40 20 - 40
RW-4 45 20 - 40
RW-5 34 24 - 34
RW-6 45 20 - 45
RW-7 46 21 - 41 *
Well ID
Total Well
Depth
(ft. bgs)
Screened
Interval
(ft. bgs)
Monitoring Wells
Product Recovery Wells
Page 1 of 2
Table 1
Groundwater Monitoring and Analysis Program
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Hydraulic
Monitoring
Water Quality
Monitoring
Annually Annually
Depth to Water / LNAPL BTEX, MTBE, &
Naphthalene
Well ID
Total Well
Depth
(ft. bgs)
Screened
Interval
(ft. bgs)
RW-8 46 21 - 41
RW-9 41 16 - 36
RW-10 50 25 - 45
RW-11 48 23 - 48
RW-12 46 21 - 41
RW-13 46 21 - 41
RW-14 46 21 - 41 *
RW-15 43 18 - 43
RW-16 46 21 - 41
RW-17 43 23 - 43 *
RW-18 39 19 - 39
RW-19 41 21 - 41
RW-20 50 20 - 50 *
RW-21 40 20 - 40
RW-22 39 19 - 39
RW-23 43 23 - 43 *
RW-24 40 20 - 40 *
RW-25 40 25 - 40 *
RW-26 40 20 - 40 *
RW-27 38 18 - 38
RW-28 41 21 - 41 *
RW-29 35 15 - 35 *
RW-30 41 21 - 41
RW-31 42 22 - 42 *
RW-32 33 13 - 33 *
RW-33 34 14 - 34 *
RW-34 50 20 - 50 *
RW-35 58 8 - 58 *
RW-36 42 22 - 42 *
RW-37 54 24 - 54
RW-38 53 13 - 53 *
RW-39 58 13 - 58
RW-40 55 15 - 55 *
RW-41 45 25 - 45
RW-42 50 10 - 50 *
RW-43 45 15 - 45 *
RW-44 54 14 - 54 *
RW-45 44 19 - 44 *
RW-47 45 15 - 45 *
RW-48 43 23 - 43 *
RW-49 57 22 - 57 *
RW-50 52 27 - 52 *
RW-51 38 23 - 38 *
Notes:
ID - Identification
ft. bgs - feet below grade surface
LNAPL - Light Non-Aqueous Phase Liquid
BTEX - benzene, toluene, ethylbenzene, and xylenes
MTBE - Methyl Tertiary Butyl Ether
Water quality samples will be analyzed for BTEX, MTBE, and Naphthalene via EPA Method 602 by SM 6200B.
* Well is equipped with a packer or pump and cannot be gauged
Monitoring Plan approved via June 14, 2012 letter from North Carolina Department of Environment and Natural Resources
(NCDENR)
Page 2 of 2
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
859.10 834.1 40.0 8/28/2001 ND 27.01 NA 832.09 No
11/27/2001 ND 27.27 NA 831.83 No
5/15/2002 ND 26.23 NA 832.87 No
11/13/2002 ND 26.45 NA 832.65 No
5/23/2003 ND 18.75 NA 840.35 Yes
11/24/2003 ND 18.87 NA 840.23 Yes
5/12/2004 ND 19.36 NA 839.74 Yes
11/10/2004 ND 19.97 NA 839.13 Yes
5/31/2005 ND 18.67 NA 840.43 Yes
11/15/2005 ND 21.29 NA 837.81 Yes
5/22/2006 ND 20.50 NA 838.60 Yes
11/22/2006 ND 20.44 NA 838.66 Yes
5/22/2007 ND 18.97 NA 840.13 Yes
11/13/2007 ND 24.10 NA 835.00 Yes
5/28/2008 ND 23.18 NA 835.92 Yes
11/18/2008 ND 24.73 NA 834.37 Yes
5/13/2009 ND 21.07 NA 838.03 Yes
11/18/2009 ND 24.56 NA 834.54 Yes
5/11/2010 ND 18.78 NA 840.32 Yes
11/16/2010 ND 21.37 NA 837.73 Yes
5/25/2011 ND 21.76 NA 837.34 Yes
11/17/2011 ND 26.07 NA 833.03 No
5/2/2012 ND 22.98 NA 836.12 Yes
11/21/2012 ND 26.39 NA 832.71 No
5/30/2013 ND 22.80 NA 836.30 Yes
5/27/2014 ND 18.75 NA 840.35 Yes
5/26/2015 ND 21.59 NA 837.51 Yes
5/11/2016 ND 19.63 NA 839.47 Yes
5/23/2017 ND 22.90 NA 836.20 Yes
5/9/2018 ND 23.59 NA 835.51 Yes
5/28/2019
5/14/2020 ND 18.29 NA 840.81 Yes
5/4/2021 ND 15.91 NA 843.19 Yes
5/11/2022 ND 21.98 NA 837.12 Yes
5/9/2023 ND 18.88 NA 840.22 Yes
Groundwater
Elevation
(ft. MSL)
Monitoring Wells
Could Not Open Lock On Vault
MW-2
Page 1 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
862.53 841.5 41.0 8/28/2001 ND 30.87 NA 831.66 No
11/28/2001 ND 31.70 NA 830.83 No
5/15/2002 NM 31.40*NM NM NM
11/13/2002 NM 32.00*NM NM NM
5/23/2003 ND 22.30 NA 840.23 No
11/17/2003 ND 21.00 NA 841.53 Yes
5/12/2004 ND 22.38 NA 840.15 No
11/10/2004 NM 22.83*NM NM NM
5/31/2005 ND 21.50 NA 841.03 No
11/15/2005 NM 24.53*NM NM NM
5/22/2006 ND 23.01 NA 839.52 No
5/7/2007 ND 22.32 NA 840.21 No
11/13/2007 NM 26.50*NM NM NM
11/18/2008 ND 27.70 NA 834.83 No
5/13/2009 ND 25.06 NA 837.47 No
11/16/2009 ND 27.21 NA 835.32 No
5/30/2013 ND 27.11 NA 835.42 No
5/27/2014 ND 19.19 NA 843.34 Yes
5/26/2015 ND 24.98 NA 837.55 No
5/11/2016 ND 22.84 NA 839.69 No
5/23/2017 26.83 26.88 0.05 835.69 **No
5/9/2018 27.33 27.34 0.01 835.20 **No
5/28/2019 ND 20.04 NA 842.49 Yes
5/14/2020 ND 21.46 NA 841.07 No
5/4/2021 ND 19.02 NA 843.51 Yes
5/11/2022 ND 27.02 NA 835.51 No
5/9/2023 ND 23.47 NA 839.06 No
MW-3
Page 2 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
862.78 812.8 70.0 8/28/2001 ND 32.70 NA 830.08 NA
11/28/2001 ND 33.48 NA 829.30 NA
5/15/2002 ND 32.46 NA 830.32 NA
11/13/2002 ND 34.30 NA 828.48 NA
5/23/2003 ND 27.20 NA 835.58 NA
11/24/2003 ND 24.38 NA 838.40 NA
5/12/2004 ND 25.42 NA 837.36 NA
11/10/2004 ND 25.90 NA 836.88 NA
5/31/2005 ND 24.84 NA 837.94 NA
11/15/2005 ND 27.39 NA 835.39 NA
5/22/2006 ND 26.00 NA 836.78 NA
11/22/2006 ND 24.03 NA 838.75 NA
5/22/2007 ND 23.75 NA 839.03 NA
11/13/2007 ND 29.25 NA 833.53 NA
5/28/2008 ND 28.45 NA 834.33 NA
11/18/2008 ND 29.42 NA 833.36 NA
5/13/2009 ND 26.50 NA 836.28 NA
11/16/2009 ND 28.34 NA 834.44 NA
5/12/2010 ND 23.98 NA 838.80 NA
11/18/2010 ND 26.11 NA 836.67 NA
5/25/2011 ND 26.52 NA 836.26 NA
11/18/2011 ND 29.32 NA 833.46 NA
11/20/2012 ND 30.13 NA 832.65 NA
5/30/2013 ND 28.27 NA 834.51 NA
5/27/2014 ND 23.75 NA 839.03 NA
5/26/2015 ND 26.35 NA 836.43 NA
5/11/2016 ND 24.27 NA 838.51 NA
5/23/2017 ND 28.21 NA 834.57 NA
5/9/2018 ND 28.63 NA 834.15 NA
5/28/2019 ND 21.22 NA 841.56 NA
5/14/2020 ND 22.85 NA 839.93 NA
5/4/2021 ND 19.86 NA 842.92 NA
5/11/2022 ND 27.03 NA 835.75 NA
5/9/2023 ND 24.88 NA 837.90 NA
MW-4D
Page 3 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
854.95 842.0 25.0 8/28/2001 ND 15.30 NA 839.65 No
11/27/2001 ND 16.25 NA 838.70 No
5/15/2002 ND 15.25 NA 839.70 No
11/13/2002 ND 15.23 NA 839.72 No
5/23/2003 ND 9.30 NA 845.65 Yes
5/12/2004 ND 9.05 NA 845.90 Yes
11/10/2004 ND 10.34 NA 844.61 Yes
5/31/2005 ND 9.32 NA 845.63 Yes
11/15/2005 ND 11.32 NA 843.63 Yes
5/22/2006 ND 10.75 NA 844.20 Yes
11/22/2006 NM NM NM NM NM
5/22/2007 ND 10.02 NA 844.93 Yes
11/13/2007 ND 13.05 NA 841.90 No
5/28/2008 ND 12.30 NA 842.65 Yes
11/20/2008 ND 13.32 NA 841.63 No
5/13/2009 ND 11.79 NA 843.16 Yes
11/18/2009 ND 11.73 NA 843.22 Yes
5/30/2013 ND 12.48 NA 842.47 Yes
5/26/2015 ND 11.99 NA 842.96 Yes
5/11/2016 ND 9.86 NA 845.09 Yes
5/23/2017 ND 12.33 NA 842.62 Yes
5/9/2018 ND 12.40 NA 842.55 Yes
5/28/2019 ND 7.86 NA 847.09 Yes
5/14/2020 ND 8.93 NA 846.02 Yes
5/4/2021 ND 5.58 NA 849.37 Yes
5/11/2022 ND 11.54 NA 843.41 Yes
5/9/2023 ND 5.53 NA 849.42 Yes
MW-5
Page 4 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
861.62 781.6 100.0 8/28/2001 ND 35.07 NA 826.55 NA
11/28/2001 ND 36.48 NA 825.14 NA
5/15/2002 ND 34.12 NA 827.50 NA
11/13/2002 ND 35.45 NA 826.17 NA
5/23/2003 ND 27.20 NA 834.42 NA
11/24/2003 ND 27.78 NA 833.84 NA
5/12/2004 ND 27.20 NA 834.42 NA
11/10/2004 ND 28.20 NA 833.42 NA
5/31/2005 ND 27.19 NA 834.43 NA
11/15/2005 ND 29.58 NA 832.04 NA
5/22/2006 ND 28.80 NA 832.82 NA
11/22/2006 ND 21.95 NA 839.67 NA
5/22/2007 ND 27.92 NA 833.70 NA
11/13/2007 ND 29.80 NA 831.82 NA
5/28/2008 ND 31.05 NA 830.57 NA
11/18/2008 ND 31.91 NA 829.71 NA
5/13/2009 ND 30.17 NA 831.45 NA
11/16/2009 ND 15.99 NA 845.63 NA
5/11/2010 ND 27.98 NA 833.64 NA
11/16/2010 ND 30.31 NA 831.31 NA
5/25/2011 ND 30.34 NA 831.28 NA
3/20/2012 ND 31.46 NA 830.16 NA
5/2/2012 ND 31.26 NA 830.36 NA
11/21/2012 NM NM NM NM NM
5/30/2013 ND 31.15 NA 830.47 NA
5/27/2014 ND 27.69 NA 833.93 NA
5/26/2015 ND 29.94 NA 831.68 NA
5/11/2016 ND 28.50 NA 833.12 NA
5/23/2017 ND 31.40 NA 830.22 NA
5/9/2018 ND 28.61 NA 833.01 NA
5/28/2019 ND 25.87 NA 835.75 NA
5/14/2020 ND 27.49 NA 834.13 NA
5/4/2021 ND 24.50 NA 837.12 NA
5/11/2022
5/9/2023 ND 25.74 NA 835.88 NA
Could Not Locate
MW-7D
Page 5 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
864.19 829.2 55.0 8/28/2001 ND 33.77 NA 830.42 Yes
11/28/2001 ND 34.55 NA 829.64 Yes
5/15/2002 ND 33.57 NA 830.62 Yes
11/13/2002 ND 35.50 NA 828.69 No
5/23/2003 ND 27.05 NA 837.14 Yes
11/24/2003 ND 25.31 NA 838.88 Yes
5/12/2004 ND 26.45 NA 837.74 Yes
11/10/2004 ND 27.07 NA 837.12 Yes
5/31/2005 ND 25.74 NA 838.45 Yes
11/15/2005 ND 28.43 NA 835.76 Yes
5/22/2006 ND 27.93 NA 836.26 Yes
11/22/2006 ND 28.50 NA 835.69 Yes
5/22/2007 ND 26.28 NA 837.91 Yes
11/13/2007 ND 30.50 NA 833.69 Yes
5/28/2008 ND 30.70 NA 833.49 Yes
11/18/2008 ND 31.48 NA 832.71 Yes
5/13/2009 ND 28.95 NA 835.24 Yes
11/16/2009 ND 30.94 NA 833.25 Yes
5/12/2010 ND 26.21 NA 837.98 Yes
11/18/2010 ND 28.87 NA 835.32 Yes
5/25/2011 ND 29.17 NA 835.02 Yes
11/17/2011 ND 31.89 NA 832.30 Yes
5/3/2012 ND 30.23 NA 833.96 Yes
11/19/2012 ND 32.67 NA 831.52 Yes
5/30/2013 ND 31.08 NA 833.11 Yes
5/27/2014 ND 26.60 NA 837.59 Yes
5/26/2015 ND 29.11 NA 835.08 Yes
5/11/2016 ND 26.94 NA 837.25 Yes
5/23/2017 ND 31.01 NA 833.18 Yes
5/9/2018 ND 31.42 NA 832.77 Yes
5/28/2019 ND 23.84 NA 840.35 Yes
5/14/2020 ND 25.61 NA 838.58 Yes
5/4/2021 ND 22.58 NA 841.61 Yes
5/11/2022 ND 29.85 NA 834.34 Yes
5/9/2023 ND 27.91 NA 836.28 Yes
MW-8
Page 6 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
849.57 824.6 50.0 8/28/2001 ND 17.78 NA 831.79 Yes
11/27/2001 ND 18.50 NA 831.07 Yes
5/15/2002 ND 17.80 NA 831.77 Yes
11/13/2002 ND 19.52 NA 830.05 Yes
5/23/2003 ND 10.65 NA 838.92 Yes
11/24/2003 ND 9.06 NA 840.51 Yes
5/12/2004 ND 10.34 NA 839.23 Yes
11/10/2004 ND 10.79 NA 838.78 Yes
5/31/2005 ND 9.73 NA 839.84 Yes
11/15/2005 ND 12.37 NA 837.20 Yes
5/22/2006 ND 11.80 NA 837.77 Yes
11/22/2006 ND 12.18 NA 837.39 Yes
5/22/2007 ND 10.37 NA 839.20 Yes
11/13/2007 ND 14.37 NA 835.20 Yes
5/28/2008 ND 14.75 NA 834.82 Yes
11/19/2008 ND 15.55 NA 834.02 Yes
5/13/2009 ND 13.15 NA 836.42 Yes
11/17/2009 ND 14.61 NA 834.96 Yes
5/30/2013 ND 15.13 NA 834.44 Yes
5/27/2014 ND 10.92 NA 838.65 Yes
5/26/2015 ND 13.22 NA 836.35 Yes
5/11/2016 ND 10.92 NA 838.65 Yes
5/23/2017 ND 14.90 NA 834.67 Yes
5/9/2018 ND 15.15 NA 834.42 Yes
5/28/2019 ND 7.77 NA 841.80 Yes
5/14/2020 ND 9.57 NA 840.00 Yes
5/4/2021 ND 6.53 NA 843.04 Yes
5/11/2022 ND 13.70 NA 835.87 Yes
5/9/2023 ND 11.71 NA 837.86 Yes
MW-9
Page 7 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
853.01 830.0 40.0 8/28/2001 ND 21.96 NA 831.05 Yes
11/27/2001 ND 22.78 NA 830.23 Yes
5/15/2002 ND 21.95 NA 831.06 Yes
11/13/2002 ND 23.68 NA 829.33 No
5/23/2003 ND 14.45 NA 838.56 Yes
11/24/2003 ND 13.56 NA 839.45 Yes
5/12/2004 ND 14.79 NA 838.22 Yes
11/10/2004 ND 15.34 NA 837.67 Yes
5/31/2005 ND 14.19 NA 838.82 Yes
11/15/2005 ND 16.79 NA 836.22 Yes
5/22/2006 ND 16.25 NA 836.76 Yes
11/22/2006 ND 16.60 NA 836.41 Yes
5/22/2007 ND 14.86 NA 838.15 Yes
11/13/2007 ND 18.95 NA 834.06 Yes
5/28/2008 ND 19.17 NA 833.84 Yes
11/19/2008 ND 19.98 NA 833.03 Yes
5/13/2009 ND 17.45 NA 835.56 Yes
11/17/2009 ND 19.17 NA 833.84 Yes
5/30/2013 ND 19.41 NA 833.60 Yes
5/27/2014 ND 15.29 NA 837.72 Yes
5/26/2015 ND 17.58 NA 835.43 Yes
5/11/2016 ND 15.51 NA 837.50 Yes
5/23/2017 ND 19.32 NA 833.69 Yes
5/9/2018 ND 19.55 NA 833.46 Yes
5/28/2019 ND 12.34 NA 840.67 Yes
5/14/2020 ND 14.16 NA 838.85 Yes
5/4/2021 ND 11.16 NA 841.85 Yes
5/11/2022 ND 18.20 NA 834.81 Yes
5/9/2023 ND 16.16 NA 836.85 Yes
MW-10
Page 8 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
852.61 750.6 122.0 8/28/2001 ND 20.74 NA 831.87 NA
11/27/2001 ND 21.70 NA 830.91 NA
5/15/2002 ND 20.90 NA 831.71 NA
11/13/2002 ND 22.07 NA 830.54 NA
5/23/2003 ND 14.50 NA 838.11 NA
11/24/2003 ND 12.59 NA 840.02 NA
5/12/2004 ND 13.70 NA 838.91 NA
11/10/2004 ND 14.48 NA 838.13 NA
5/31/2005 ND 13.27 NA 839.34 NA
11/15/2005 ND 15.81 NA 836.80 NA
5/22/2006 ND 15.20 NA 837.41 NA
11/22/2006 ND 15.35 NA 837.26 NA
5/22/2007 ND 13.88 NA 838.73 NA
11/13/2007 ND 17.95 NA 834.66 NA
5/28/2008 ND 18.08 NA 834.53 NA
11/19/2008 ND 19.57 NA 833.04 NA
5/13/2009 ND 17.06 NA 835.55 NA
11/17/2009 ND 16.30 NA 836.31 NA
5/13/2010 ND 13.81 NA 838.80 NA
11/16/2010 ND 16.28 NA 836.33 NA
5/26/2011 ND 16.61 NA 836.00 NA
11/22/2011 ND 19.10 NA 833.51 NA
5/4/2012 ND 17.69 NA 834.92 NA
11/21/2012 ND 20.04 NA 832.57 NA
5/31/2013 ND 18.43 NA 834.18 NA
5/27/2014 ND 14.38 NA 838.23 NA
5/26/2015 ND 16.51 NA 836.10 NA
5/11/2016 ND 14.41 NA 838.20 NA
5/23/2017 ND 17.95 NA 834.66 NA
5/9/2018 ND 18.15 NA 834.46 NA
5/28/2019 ND 10.53 NA 842.08 NA
5/14/2020 ND 12.67 NA 839.94 NA
5/4/2021 ND 9.88 NA 842.73 NA
5/11/2022 ND 16.89 NA 835.72 NA
5/9/2023 ND 14.07 NA 838.54 NA
MW-11D
Page 9 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
852.38 802.4 70.0 8/28/2001 ND 20.65 NA 831.73 NA
11/27/2001 ND 21.52 NA 830.86 NA
5/15/2002 ND 20.70 NA 831.68 NA
11/13/2002 ND 22.13 NA 830.25 NA
5/23/2003 ND 12.15 NA 840.23 NA
11/24/2003 ND 12.37 NA 840.01 NA
5/12/2004 ND 13.53 NA 838.85 NA
11/10/2004 ND 14.23 NA 838.15 NA
5/31/2005 ND 13.04 NA 839.34 NA
11/15/2005 ND 15.59 NA 836.79 NA
5/22/2006 ND 15.05 NA 837.33 NA
11/22/2006 ND 15.05 NA 837.33 NA
5/22/2007 ND 13.64 NA 838.74 NA
11/13/2007 ND 17.74 NA 834.64 NA
5/28/2008 ND 17.90 NA 834.48 NA
11/19/2008 ND 18.67 NA 833.71 NA
5/13/2009 ND 16.26 NA 836.12 NA
11/17/2009 ND 17.52 NA 834.86 NA
5/30/2013 ND 18.22 NA 834.16 NA
5/27/2014 ND 14.14 NA 838.24 NA
5/26/2015 ND 16.25 NA 836.13 NA
5/11/2016 ND 14.23 NA 838.15 NA
5/23/2017 ND 17.92 NA 834.46 NA
5/9/2018 ND 18.10 NA 834.28 NA
5/28/2019 ND 10.97 NA 841.41 NA
5/14/2020 ND 12.82 NA 839.56 NA
5/4/2021 ND 9.99 NA 842.39 NA
5/11/2022 ND 16.86 NA 835.52 NA
5/9/2023 ND 14.88 NA 837.50 NA
MW-12D
Page 10 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
849.49 799.5 70.0 8/28/2001 ND 18.06 NA 831.43 NA
11/27/2001 ND 18.92 NA 830.57 NA
5/15/2002 ND 18.15 NA 831.34 NA
11/13/2002 ND 19.80 NA 829.69 NA
5/23/2003 ND 10.53 NA 838.96 NA
11/24/2003 ND 9.65 NA 839.84 NA
5/12/2004 ND 10.90 NA 838.59 NA
11/10/2004 ND 11.49 NA 838.00 NA
5/31/2005 ND 10.35 NA 839.14 NA
11/15/2005 ND 12.92 NA 836.57 NA
5/22/2006 ND 12.34 NA 837.15 NA
11/22/2006 ND 12.68 NA 836.81 NA
5/22/2007 ND 10.99 NA 838.50 NA
11/13/2007 ND 15.05 NA 834.44 NA
5/28/2008 ND 15.30 NA 834.19 NA
11/19/2008 ND 16.10 NA 833.39 NA
5/13/2009 ND 13.66 NA 835.83 NA
11/17/2009 ND 15.17 NA 834.32 NA
5/30/2013 ND 15.60 NA 833.89 NA
5/27/2014 ND 11.49 NA 838.00 NA
5/26/2015 ND 13.77 NA 835.72 NA
5/11/2016 ND 11.63 NA 837.86 NA
5/23/2017 ND 15.45 NA 834.04 NA
5/9/2018 ND 15.70 NA 833.79 NA
5/28/2019 ND 8.44 NA 841.05 NA
5/14/2020 ND 10.26 NA 839.23 NA
5/4/2021 ND 7.29 NA 842.20 NA
5/11/2022 ND 14.32 NA 835.17 NA
5/9/2023 ND 12.30 NA 837.19 NA
MW-13D
Page 11 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
849.08 669.1 200.0 8/28/2001 ND 1.71 NA 847.37 NA
11/27/2001 ND 7.83 NA 841.25 NA
5/15/2002 ND 29.95 NA 819.13 NA
11/13/2002 ND 20.55 NA 828.53 NA
5/23/2003 ND 12.60 NA 836.48 NA
11/24/2003 ND 14.33 NA 834.75 NA
5/12/2004 ND 0.10 NA 848.98 NA
11/10/2004 NM NM NM NM NA
5/31/2005 ND 5.34 NA 843.74 NA
11/15/2005 ND 6.96 NA 842.12 NA
5/22/2006 ND 7.90 NA 841.18 NA
11/22/2006 ND 12.34 NA 836.74 NA
5/22/2007 ND 13.80 NA 835.28 NA
11/13/2007 ND 11.70 NA 837.38 NA
5/28/2008 ND 14.70 NA 834.38 NA
11/19/2008 ND 18.35 NA 830.73 NA
5/13/2009 ND 17.71 NA 831.37 NA
11/17/2009 ND 17.03 NA 832.05 NA
5/30/2013 ND 13.35 NA 835.73 NA
5/26/2015 ND 17.51 NA 831.57 NA
5/11/2016 ND 13.50 NA 835.58 NA
5/23/2017 ND 13.85 NA 835.23 NA
5/9/2018 ND 18.12 NA 830.96 NA
5/28/2019 ND 11.26 NA 837.82 NA
5/14/2020 ND 13.94 NA 835.14 NA
5/4/2021 ND 11.29 NA 837.79 NA
5/11/2022 ND 14.33 NA 834.75 NA
5/9/2023 ND 15.51 NA 833.57 NA
MW-14D
Page 12 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
835.28 814.3 31.0 8/28/2001 ND 12.52 NA 822.76 Yes
11/29/2001 ND 12.87 NA 822.41 Yes
5/15/2002 ND 11.91 NA 823.37 Yes
11/13/2002 ND 12.55 NA 822.73 Yes
5/23/2003 ND 8.62 NA 826.66 Yes
11/24/2003 ND 8.53 NA 826.75 Yes
5/12/2004 ND 8.64 NA 826.64 Yes
11/10/2004 ND 9.03 NA 826.25 Yes
5/31/2005 ND 8.22 NA 827.06 Yes
11/15/2005 ND 9.91 NA 825.37 Yes
5/22/2006 ND 9.20 NA 826.08 Yes
11/22/2006 ND 8.88 NA 826.40 Yes
5/22/2007 ND 8.47 NA 826.81 Yes
11/13/2007 ND 11.47 NA 823.81 Yes
5/28/2008 ND 10.40 NA 824.88 Yes
11/18/2008 ND 10.98 NA 824.30 Yes
5/13/2009 ND 9.42 NA 825.86 Yes
11/16/2009 ND 10.69 NA 824.59 Yes
5/13/2010 ND 8.54 NA 826.74 Yes
11/17/2010 ND 10.40 NA 824.88 Yes
5/25/2011 ND 10.13 NA 825.15 Yes
11/18/2011 ND 11.76 NA 823.52 Yes
5/2/2012 ND 10.30 NA 824.98 Yes
11/19/2012 ND 12.11 NA 823.17 Yes
5/30/2013 ND 10.01 NA 825.27 Yes
5/27/2014 ND 8.37 NA 826.91 Yes
5/26/2015 ND 9.95 NA 825.33 Yes
5/11/2016 ND 8.95 NA 826.33 Yes
5/23/2017 ND 10.53 NA 824.75 Yes
5/9/2018 ND 10.41 NA 824.87 Yes
5/28/2019 ND 7.22 NA 828.06 Yes
5/14/2020 ND 8.12 NA 827.16 Yes
5/4/2021 ND 6.32 NA 828.96 Yes
5/11/2022 ND 10.04 NA 825.24 Yes
5/9/2023 Could Not Locate
MW-15
Page 13 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
835.44 780.4 75.0 8/28/2001 ND 12.62 NA 822.82 NA
11/26/2001 ND 13.14 NA 822.30 NA
5/15/2002 ND 11.60 NA 823.84 NA
11/13/2002 ND 12.20 NA 823.24 NA
5/23/2003 ND 6.90 NA 828.54 NA
11/24/2003 ND 8.90 NA 826.54 NA
5/12/2004 ND 9.03 NA 826.41 NA
11/10/2004 NM NM NM NM NM
5/31/2005 ND 8.67 NA 826.77 NA
11/15/2005 ND 10.22 NA 825.22 NA
5/22/2006 ND 9.62 NA 825.82 NA
11/22/2006 ND 9.34 NA 826.10 NA
5/22/2007 ND 8.92 NA 826.52 NA
11/13/2007 ND 11.82 NA 823.62 NA
5/28/2008 ND 10.75 NA 824.69 NA
11/18/2008 ND 11.27 NA 824.17 NA
5/13/2009 ND 9.81 NA 825.63 NA
11/16/2009 ND 10.99 NA 824.45 NA
5/30/2013 ND 11.15 NA 824.29 NA
5/27/2014 ND 8.51 NA 826.93 NA
5/26/2015 ND 10.34 NA 825.10 NA
5/11/2016 ND 9.38 NA 826.06 NA
5/23/2017 ND 10.89 NA 824.55 NA
5/9/2018 ND 10.38 NA 825.06 NA
5/28/2019 ND 7.71 NA 827.73 NA
5/14/2020 ND 8.60 NA 826.84 NA
5/4/2021 ND 6.90 NA 828.54 NA
5/11/2022 ND 10.40 NA 825.04 NA
5/9/2023 ND 9.76 NA 825.68 NA
MW-16D
Page 14 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
836.11 761.1 105.0 8/28/2001 ND 13.27 NA 822.84 NA
11/26/2001 ND 13.72 NA 822.39 NA
5/15/2002 ND 12.45 NA 823.66 NA
11/13/2002 ND 12.95 NA 823.16 NA
5/23/2003 ND 7.70 NA 828.41 NA
11/24/2003 ND 9.43 NA 826.68 NA
5/12/2004 ND 9.80 NA 826.31 NA
11/10/2004 ND 10.00 NA 826.11 NA
5/31/2005 ND 9.31 NA 826.80 NA
11/15/2005 ND 10.62 NA 825.49 NA
5/22/2006 ND 10.27 NA 825.84 NA
11/22/2006 ND 10.11 NA 826.00 NA
5/22/2007 ND 9.60 NA 826.51 NA
11/13/2007 ND 12.12 NA 823.99 NA
5/28/2008 ND 11.44 NA 824.67 NA
11/18/2008 ND 12.15 NA 823.96 NA
5/13/2009 ND 10.52 NA 825.59 NA
11/16/2009 ND 11.75 NA 824.36 NA
5/30/2013 ND 10.35 NA 825.76 NA
5/27/2014 NM NM NM NM NM
5/26/2015 ND 10.97 NA 825.14 NA
5/11/2016 ND 10.00 NA 826.11 NA
5/23/2017 ND 11.53 NA 824.58 NA
5/9/2018 ND 11.50 NA 824.61 NA
5/28/2019 ND 8.32 NA 827.79 NA
5/14/2020 ND 9.20 NA 826.91 NA
5/4/2021 ND 7.51 NA 828.60 NA
5/11/2022 ND 11.08 NA 825.03 NA
5/9/2023 ND 5.59 NA 830.52 NA
MW-17D
Page 15 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
835.72 660.7 215.0 8/28/2001 ND 12.52 NA 823.20 NA
11/26/2001 ND 13.56 NA 822.16 NA
5/15/2002 ND 11.40 NA 824.32 NA
11/13/2002 ND 12.00 NA 823.72 NA
5/23/2003 ND 0.10 NA 835.62 NA
11/24/2003 ND 9.07 NA 826.65 NA
5/12/2004 ND 0.50 NA 835.22 NA
11/10/2004 ND 6.12 NA 829.60 NA
5/31/2005 ND 6.17 NA 829.55 NA
11/15/2005 ND 8.39 NA 827.33 NA
5/22/2006 ND 4.80 NA 830.92 NA
11/22/2006 ND 9.74 NA 825.98 NA
5/22/2007 ND 9.24 NA 826.48 NA
11/13/2007 ND 7.40 NA 828.32 NA
5/28/2008 ND 9.44 NA 826.28 NA
11/18/2008 ND 11.82 NA 823.90 NA
5/13/2009 ND 12.05 NA 823.67 NA
11/16/2009 ND 9.49 NA 826.23 NA
5/13/2010 ND 7.99 NA 827.73 NA
11/17/2010 ND 10.07 NA 825.65 NA
5/26/2011 ND 10.90 NA 824.82 NA
11/18/2011 ND 7.78 NA 827.94 NA
5/4/2012 ND 15.83 NA 819.89 NA
11/20/2012 ND 16.57 NA 819.15 NA
5/30/2013 ND 14.64 NA 821.08 NA
5/26/2015 ND 5.99 NA 829.73 NA
5/11/2016 ND 6.58 NA 829.14 NA
5/23/2017 ND 3.04 NA 832.68 NA
5/9/2018 ND 4.38 NA 831.34 NA
5/28/2019 ND 4.35 NA 831.37 NA
5/14/2020 ND 4.25 NA 831.47 NA
5/4/2021 ND 4.32 NA 831.40 NA
5/11/2022 ND 4.80 NA 830.92 NA
5/9/2023 Could Not Locate
MW-18D
Page 16 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
865.15 845.2 35.0 8/28/2001 ND 26.04 NA 839.11 No
11/26/2001 ND 26.79 NA 838.36 No
5/15/2002 ND 26.50 NA 838.65 No
11/13/2002 ND 27.88 NA 837.27 No
5/23/2003 ND 19.50 NA 845.65 Yes
11/24/2003 ND 17.83 NA 847.32 Yes
5/12/2004 ND 17.82 NA 847.33 Yes
11/10/2004 ND 18.79 NA 846.36 Yes
5/31/2005 ND 17.33 NA 847.82 Yes
11/15/2005 ND 19.92 NA 845.23 Yes
5/22/2006 ND 19.50 NA 845.65 Yes
11/22/2006 ND 20.19 NA 844.96 No
5/22/2007 ND 18.13 NA 847.02 Yes
11/13/2007 ND 22.05 NA 843.10 No
5/28/2008 ND 22.25 NA 842.90 No
11/19/2008 ND 23.62 NA 841.53 No
5/13/2009 ND 21.35 NA 843.80 No
11/17/2009 ND 22.98 NA 842.17 No
5/30/2013 ND 23.60 NA 841.55 No
5/27/2014 ND 19.81 NA 845.34 Yes
5/26/2015 ND 21.91 NA 843.24 No
5/11/2016
5/23/2017
5/9/2018
5/28/2019
5/14/2020 ND 18.18 NA 846.97 Yes
5/4/2021 ND 15.12 NA 850.03 Yes
5/11/2022 ND 21.38 NA 843.77 No
5/9/2023 Could Not Locate
Could Not Locate
Could Not Locate
Could Not Locate
Could Not Locate
MW-19
Page 17 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
864.63 702.6 182.0 8/28/2001 ND 29.60 NA 835.03 NA
11/26/2001 ND 26.83 NA 837.80 NA
5/15/2002 ND 26.70 NA 837.93 NA
11/13/2002 ND 30.68 NA 833.95 NA
5/23/2003 ND 27.00 NA 837.63 NA
11/24/2003 ND 17.56 NA 847.07 NA
5/12/2004 ND 17.45 NA 847.18 NA
11/10/2004 ND 18.42 NA 846.21 NA
5/31/2005 ND 16.82 NA 847.81 NA
11/15/2005 ND 19.29 NA 845.34 NA
5/22/2006 ND 19.05 NA 845.58 NA
11/22/2006 ND 20.09 NA 844.54 NA
5/22/2007 ND 17.74 NA 846.89 NA
11/13/2007 ND 21.60 NA 843.03 NA
5/28/2008 ND 22.25 NA 842.38 NA
11/19/2008 ND 24.08 NA 840.55 NA
5/13/2009 ND 22.00 NA 842.63 NA
11/17/2009 ND 22.84 NA 841.79 NA
5/14/2010 ND 18.88 NA 845.75 NA
11/18/2010 ND 20.65 NA 843.98 NA
5/26/2011 ND 21.18 NA 843.45 NA
11/18/2011 ND 23.50 NA 841.13 NA
5/4/2012 ND 23.67 NA 840.96 NA
11/20/2012 ND 24.63 NA 840.00 NA
5/30/2013 ND 23.42 NA 841.21 NA
5/26/2015 ND 21.79 NA 842.84 NA
5/11/2016 ND 19.95 NA 844.68 NA
5/23/2017
5/9/2018 ND 24.41 NA 840.22 NA
5/28/2019
5/14/2020 ND 17.91 NA 846.72 NA
5/4/2021 ND 14.77 NA 849.86 NA
5/11/2022 ND 21.31 NA 843.32 NA
5/9/2023 Could Not Locate
MW-20D
Could Not Locate
Could Not Locate
Page 18 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
864.75 840.8 54.0 8/28/2001 ND 33.45 NA 831.30 No
11/27/2001 ND 34.28 NA 830.47 No
5/15/2002 ND 33.50 NA 831.25 No
11/13/2002 ND 34.95 NA 829.80 No
5/23/2003 ND 26.00 NA 838.75 No
11/24/2003 ND 24.88 NA 839.87 No
5/12/2004 ND 26.15 NA 838.60 No
11/10/2004 ND 26.56 NA 838.19 No
5/31/2005 ND 25.44 NA 839.31 No
11/15/2005 ND 28.07 NA 836.68 No
5/22/2006 ND 27.60 NA 837.15 No
11/22/2006 ND 21.15 NA 843.60 Yes
5/22/2007 ND 26.09 NA 838.66 No
11/13/2007 ND 30.20 NA 834.55 No
5/28/2008 ND 30.56 NA 834.19 No
11/19/2008 ND 31.37 NA 833.38 No
5/13/2009 ND 28.76 NA 835.99 No
11/16/2009 ND 30.53 NA 834.22 No
5/30/2013 ND 38.80 NA 825.95 No
5/27/2014 ND 26.51 NA 838.24 No
5/26/2015 ND 28.91 NA 835.84 No
5/11/2016 ND 26.73 NA 838.02 No
5/23/2017 ND 30.70 NA 834.05 No
5/9/2018 ND 31.03 NA 833.72 No
5/28/2019 ND 23.51 NA 841.24 Yes
5/14/2020 ND 25.32 NA 839.43 No
5/4/2021 ND 22.22 NA 842.53 Yes
5/11/2022 ND 29.47 NA 835.28 No
5/9/2023 ND 27.48 NA 837.27 No
MW-21
Page 19 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
858.41 831.9 36.5 8/28/2001 ND 26.37 NA 832.04 Yes
11/26/2001 ND 27.25 NA 831.16 No
5/15/2002 ND 26.52 NA 831.89 No
11/13/2002 ND 28.20 NA 830.21 No
5/23/2003 ND 20.12 NA 838.29 Yes
11/24/2003 ND 17.73 NA 840.68 Yes
5/12/2004 ND 19.00 NA 839.41 Yes
11/10/2004 ND 19.53 NA 838.88 Yes
5/31/2005 ND 18.35 NA 840.06 Yes
11/15/2005 ND 20.67 NA 837.74 Yes
5/22/2006 ND 20.45 NA 837.96 Yes
11/22/2006 ND 20.90 NA 837.51 Yes
5/22/2007 ND 19.04 NA 839.37 Yes
11/13/2007 ND 23.05 NA 835.36 Yes
5/28/2008 ND 23.45 NA 834.96 Yes
11/19/2008 ND 24.17 NA 834.24 Yes
5/13/2009 ND 21.80 NA 836.61 Yes
11/16/2009 ND 23.31 NA 835.10 Yes
5/12/2010 ND 19.04 NA 839.37 Yes
11/17/2010 ND 21.38 NA 837.03 Yes
5/25/2011 ND 21.79 NA 836.62 Yes
11/18/2011 ND 24.59 NA 833.82 Yes
5/3/2012 ND 23.04 NA 835.37 Yes
11/19/2012 ND 25.23 NA 833.18 Yes
5/30/2013 ND 25.55 NA 832.86 Yes
5/27/2014 ND 19.57 NA 838.84 Yes
5/26/2015 ND 21.89 NA 836.52 Yes
5/11/2016 ND 19.64 NA 838.77 Yes
5/23/2017 ND 23.58 NA 834.83 Yes
5/9/2018 ND 23.91 NA 834.50 Yes
5/28/2019 ND 16.40 NA 842.01 Yes
5/14/2020 ND 18.17 NA 840.24 Yes
5/4/2021 ND 15.19 NA 843.22 Yes
5/11/2022 ND 22.31 NA 836.10 Yes
5/9/2023 ND 20.42 NA 837.99 Yes
MW-22
Page 20 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
860.18 841.2 49.0 8/28/2001 ND 27.12 NA 833.06 No
11/26/2001 ND 27.94 NA 832.24 No
5/15/2002 ND 27.43 NA 832.75 No
11/13/2002 ND 30.68 NA 829.50 No
5/23/2003 ND 21.14 NA 839.04 No
11/24/2003 ND 18.23 NA 841.95 Yes
5/12/2004 ND 19.45 NA 840.73 No
11/10/2004 ND 19.97 NA 840.21 No
5/31/2005 ND 18.76 NA 841.42 Yes
11/15/2005 ND 21.31 NA 838.87 No
5/22/2006 ND 20.85 NA 839.33 No
11/22/2006 ND 21.43 NA 838.75 No
5/22/2007 ND 19.36 NA 840.82 No
11/13/2007 ND 23.35 NA 836.83 No
5/28/2008 ND 23.90 NA 836.28 No
11/19/2008 ND 24.75 NA 835.43 No
5/13/2009 ND 22.34 NA 837.84 No
11/16/2009 ND 23.99 NA 836.19 No
5/12/2010 ND 19.53 NA 840.65 No
11/18/2010 ND 21.81 NA 838.37 No
5/26/2011 ND 22.21 NA 837.97 No
11/18/2011 ND 25.11 NA 835.07 No
5/2/2012 ND 23.60 NA 836.58 No
11/20/2012 ND 25.78 NA 834.40 No
5/30/2013 ND 24.50 NA 835.68 No
5/27/2014 ND 19.99 NA 840.19 No
5/26/2015 ND 22.32 NA 837.86 No
5/11/2016 ND 20.05 NA 840.13 No
5/23/2017 ND 23.97 NA 836.21 No
5/9/2018 ND 24.41 NA 835.77 No
5/28/2019 ND 16.71 NA 843.47 Yes
5/14/2020 ND 18.36 NA 841.82 Yes
5/4/2021 ND 15.41 NA 844.77 Yes
5/11/2022 ND 22.63 NA 837.55 No
5/9/2023 ND 20.74 NA 839.44 No
MW-28
Page 21 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
860.24 810.2 70.0 8/28/2001 ND 27.11 NA 833.13 NA
11/28/2001 ND 27.97 NA 832.27 NA
5/15/2002 ND 27.44 NA 832.80 NA
11/13/2002 ND 29.15 NA 831.09 NA
5/23/2003 ND 20.70 NA 839.54 NA
11/24/2003 ND 18.31 NA 841.93 NA
5/12/2004 ND 19.49 NA 840.75 NA
11/10/2004 ND 20.01 NA 840.23 NA
5/31/2005 ND 18.78 NA 841.46 NA
11/15/2005 ND 21.45 NA 838.79 NA
5/22/2006 ND 20.65 NA 839.59 NA
11/22/2006 ND 21.51 NA 838.73 NA
5/22/2007 ND 19.40 NA 840.84 NA
11/13/2007 ND 23.45 NA 836.79 NA
5/28/2008 ND 23.75 NA 836.49 NA
11/19/2008 ND 24.79 NA 835.45 NA
5/13/2009 ND 22.35 NA 837.89 NA
11/16/2009 ND 23.96 NA 836.28 NA
5/13/2010 ND 19.50 NA 840.74 NA
11/18/2010 ND 21.85 NA 838.39 NA
5/26/2011 ND 22.24 NA 838.00 NA
11/18/2011 ND 25.13 NA 835.11 NA
5/4/2012 ND 23.59 NA 836.65 NA
11/20/2012 ND 25.81 NA 834.43 NA
5/31/2013 ND 24.65 NA 835.59 NA
5/27/2014 ND 22.89 NA 837.35 NA
5/26/2015 ND 22.31 NA 837.93 NA
5/11/2016 ND 20.15 NA 840.09 NA
5/23/2017 ND 23.68 NA 836.56 NA
5/9/2018 ND 24.45 NA 835.79 NA
5/28/2019 ND 16.84 NA 843.40 NA
5/14/2020 ND 18.39 NA 841.85 NA
5/4/2021 ND 15.51 NA 844.73 NA
5/11/2022 ND 22.48 NA 837.76 NA
5/9/2023 ND 20.77 NA 839.47 NA
MW-29D
Page 22 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
868.27 843.3 50.0 8/28/2001 ND 30.50 NA 837.77 No
11/26/2001 ND 31.21 NA 837.06 No
5/15/2002 ND 30.93 NA 837.34 No
11/13/2002 ND 32.75 NA 835.52 No
5/23/2003 ND 25.03 NA 843.24 No
11/24/2003 ND 22.30 NA 845.97 Yes
5/12/2004 ND 22.50 NA 845.77 Yes
11/10/2004 ND 23.41 NA 844.86 Yes
5/31/2005 ND 21.85 NA 846.42 Yes
11/15/2005 ND 23.58 NA 844.69 Yes
5/22/2006 ND 24.10 NA 844.17 Yes
11/22/2006 ND 25.03 NA 843.24 No
5/22/2007 ND 22.62 NA 845.65 Yes
11/13/2007 ND 26.70 NA 841.57 No
5/28/2008 ND 27.30 NA 840.97 No
11/19/2008 ND 28.26 NA 840.01 No
5/13/2009 ND 25.77 NA 842.50 No
11/17/2009 ND 27.95 NA 840.32 No
5/13/2010 ND 23.43 NA 844.84 Yes
11/16/2010 ND 25.88 NA 842.39 No
5/26/2011 ND 25.98 NA 842.29 No
11/22/2011 ND 28.55 NA 839.72 No
5/3/2012 ND 27.42 NA 840.85 No
11/21/2012 ND 29.20 NA 839.07 No
5/30/2013 ND 28.36 NA 839.91 No
5/27/2014 ND 24.31 NA 843.96 Yes
5/26/2015 ND 26.42 NA 841.85 No
5/11/2016 ND 24.62 NA 843.65 Yes
5/23/2017 ND 27.97 NA 840.30 No
5/9/2018 ND 28.53 NA 839.74 No
5/28/2019 ND 21.34 NA 846.93 Yes
5/14/2020 ND 22.67 NA 845.60 Yes
5/4/2021 ND 19.43 NA 848.84 Yes
5/11/2022 ND 25.92 NA 842.35 No
5/9/2023 ND 25.67 NA 842.60 No
MW-30
Page 23 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
868.83 843.8 50.0 8/28/2001 ND 31.64 NA 837.19 No
11/26/2001 ND 32.33 NA 836.50 No
5/15/2002 ND 32.07 NA 836.76 No
11/13/2002 ND 33.97 NA 834.86 No
5/23/2003 ND 25.56 NA 843.27 No
11/24/2003 ND 23.49 NA 845.34 Yes
5/12/2004 ND 23.68 NA 845.15 Yes
11/10/2004 ND 24.60 NA 844.23 Yes
5/31/2005 ND 23.07 NA 845.76 Yes
11/15/2005 ND 25.87 NA 842.96 No
5/22/2006
11/22/2006 ND 26.15 NA 842.68 No
5/22/2007
11/13/2007
5/28/2008
5/13/2009 ND 27.02 NA 841.81 No
11/17/2009 ND 29.22 NA 839.61 No
5/30/2013
5/27/2014
5/26/2015 ND 27.60 NA 841.23 No
5/11/2016 ND 25.77 NA 843.06 No
5/23/2017 ND 29.22 NA 839.61 No
5/9/2018 ND 29.75 NA 839.08 No
5/28/2019
5/14/2020 ND 23.88 NA 844.95 Yes
5/4/2021 ND 20.69 NA 848.14 Yes
5/11/2022 ND 27.16 NA 841.67 No
5/9/2023 Could Not Access Well
MW-31
Could Not Access Well
Could Not Access Well
Could Not Access Well
Could Not Access Well
Could Not Access Well
Could Not Access Well
Could Not Access Well
Page 24 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
868.95 844.0 50.0 8/28/2001 ND 32.38 NA 836.57 No
11/26/2001 ND 33.10 NA 835.85 No
5/15/2002 ND 32.83 NA 836.12 No
11/13/2002 ND 34.75 NA 834.20 No
5/23/2003 ND 26.77 NA 842.18 No
11/24/2003 ND 24.28 NA 844.67 Yes
5/12/2004 ND 24.63 NA 844.32 Yes
11/10/2004 ND 25.49 NA 843.46 No
5/31/2005 ND 24.00 NA 844.95 Yes
11/15/2005 ND 26.75 NA 842.20 No
5/22/2006 ND 26.14 NA 842.81 No
11/22/2006 NM NM NM NM NM
5/22/2007 ND 24.71 NA 844.24 Yes
11/13/2007 ND 28.80 NA 840.15 No
5/28/2008 ND 28.80 NA 840.15 No
11/19/2008 ND 30.13 NA 838.82 No
5/13/2009 ND 27.81 NA 841.14 No
11/17/2009 ND 30.03 NA 838.92 No
5/30/2013 ND 33.30 NA 835.65 No
5/26/2015 ND 28.40 NA 840.55 No
5/11/2016 ND 26.58 NA 842.37 No
5/23/2017 ND 30.00 NA 838.95 No
5/9/2018 ND 30.50 NA 838.45 No
5/28/2019 ND 23.42 NA 845.53 Yes
5/14/2020 ND 24.74 NA 844.21 Yes
5/4/2021 ND 21.60 NA 847.35 Yes
5/11/2022 ND 26.03 NA 842.92 No
5/9/2023 ND 27.47 NA 841.48 No
MW-32
Page 25 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
864.98 845.0 50.0 8/28/2001 ND 31.58 NA 833.40 No
11/26/2001 ND 32.37 NA 832.61 No
5/15/2002 ND 31.90 NA 833.08 No
11/13/2002 ND 33.67 NA 831.31 No
5/23/2003 ND 25.00 NA 839.98 No
5/12/2004 ND 23.74 NA 841.24 No
11/10/2004 ND 24.38 NA 840.60 No
5/31/2005 ND 23.01 NA 841.97 No
11/15/2005 ND 25.67 NA 839.31 No
5/22/2006 ND 25.15 NA 839.83 No
11/22/2006
5/22/2007 ND 23.71 NA 841.27 No
11/13/2007 ND 27.80 NA 837.18 No
5/28/2008
11/20/2008 ND 29.21 NA 835.77 No
5/13/2009 ND 26.81 NA 838.17 No
11/17/2009 ND 28.61 NA 836.37 No
5/30/2013 ND 28.94 NA 836.04 No
5/27/2014 ND 24.59 NA 840.39 No
5/26/2015 ND 26.81 NA 838.17 No
5/11/2016 ND 24.63 NA 840.35 No
5/23/2017
5/9/2018
5/28/2019
5/14/2020
5/4/2021 ND 19.86 NA 845.12 Yes
5/11/2022 ND 27.00 NA 837.98 No
5/9/2023 Could Not Locate
MW-33
Could Not Locate
Could Not Locate
Could Not Locate
Could Not Locate
Could Not Locate
Could Not Locate
Page 26 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
853.95 833.0 71.0 8/28/2001 ND 21.67 NA 832.28 No
11/26/2001 ND 22.46 NA 831.49 No
5/15/2002 ND 21.84 NA 832.11 No
11/13/2002 ND 23.55 NA 830.40 No
5/23/2003 ND 14.67 NA 839.28 Yes
11/24/2003 ND 12.89 NA 841.06 Yes
5/12/2004 ND 14.27 NA 839.68 Yes
11/10/2004 ND 14.73 NA 839.22 Yes
5/31/2005 ND 13.57 NA 840.38 Yes
11/15/2005 ND 16.00 NA 837.95 Yes
5/22/2006 ND 15.60 NA 838.35 Yes
11/22/2006 ND 16.00 NA 837.95 Yes
5/22/2007 ND 14.20 NA 839.75 Yes
11/13/2007 ND 18.15 NA 835.80 Yes
5/28/2008 ND 18.76 NA 835.19 Yes
11/19/2008 ND 19.42 NA 834.53 Yes
5/13/2009 ND 17.04 NA 836.91 Yes
11/17/2009 ND 18.52 NA 835.43 Yes
5/12/2010 ND 14.21 NA 839.74 Yes
11/16/2010 ND 16.48 NA 837.47 Yes
5/26/2011 ND 16.10 NA 837.85 Yes
11/22/2011 ND 18.89 NA 835.06 Yes
3/20/2012 ND 18.50 NA 835.45 Yes
5/4/2012 ND 18.18 NA 835.77 Yes
11/21/2012 ND 20.35 NA 833.60 Yes
5/30/2013 ND 19.10 NA 834.85 Yes
5/27/2014 ND 14.79 NA 839.16 Yes
5/26/2015 ND 16.99 NA 836.96 Yes
5/11/2016 ND 14.76 NA 839.19 Yes
5/23/2017 ND 18.66 NA 835.29 Yes
5/9/2018 ND 19.02 NA 834.93 Yes
5/28/2019 ND 11.50 NA 842.45 Yes
5/14/2020 ND 13.19 NA 840.76 Yes
5/4/2021 ND 10.27 NA 843.68 Yes
5/11/2022 ND 17.42 NA 836.53 Yes
5/9/2023 ND 15.48 NA 838.47 Yes
MW-34
Page 27 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
852.75 831.8 46.0 8/28/2001 ND 26.66 NA 826.09 No
11/29/2001 ND 27.32 NA 825.43 No
5/15/2002 ND 25.52 NA 827.23 No
11/13/2002 ND 27.27 NA 825.48 No
5/23/2003 ND 8.62 NA 844.13 Yes
11/24/2003 ND 19.63 NA 833.12 Yes
5/12/2004 ND 20.20 NA 832.55 Yes
11/10/2004 ND 20.95 NA 831.80 Yes
5/31/2005 ND 19.57 NA 833.18 Yes
11/15/2005 ND 22.35 NA 830.40 No
5/22/2006 ND 21.48 NA 831.27 No
11/22/2006 ND 21.78 NA 830.97 No
5/22/2007 ND 20.03 NA 832.72 Yes
11/13/2007 ND 24.63 NA 828.12 No
5/28/2008 ND 23.32 NA 829.43 No
11/18/2008 ND 24.82 NA 827.93 No
5/13/2009 ND 21.77 NA 830.98 No
11/17/2009 ND 24.62 NA 828.13 No
5/13/2010 ND 19.96 NA 832.79 Yes
11/17/2010 ND 23.16 NA 829.59 No
5/26/2011 ND 22.67 NA 830.08 No
11/17/2011 ND 25.82 NA 826.93 No
3/20/2012 ND 23.42 NA 829.33 No
5/3/2012 ND 23.17 NA 829.58 No
11/19/2012 ND 26.05 NA 826.70 No
5/31/2013 ND 23.22 NA 829.53 No
5/27/2014 ND 18.85 NA 833.90 Yes
5/26/2015 ND 22.60 NA 830.15 No
5/11/2016 ND 20.86 NA 831.89 Yes
5/23/2017 ND 23.50 NA 829.25 No
5/9/2018 ND 24.02 NA 828.73 No
5/28/2019 ND 18.09 NA 834.66 Yes
5/14/2020 ND 19.69 NA 833.06 Yes
5/4/2021 ND 16.75 NA 836.00 Yes
5/11/2022 ND 23.07 NA 829.68 No
5/9/2023 ND 20.93 NA 831.82 Yes
MW-35
Page 28 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
857.08 841.1 31.0 8/28/2001 ND 17.55 NA 839.53 No
11/27/2001 ND 18.43 NA 838.65 No
5/15/2002 ND 17.38 NA 839.70 No
11/13/2002 ND 17.58 NA 839.50 No
5/23/2003 ND 11.40 NA 845.68 Yes
11/24/2003 ND 12.75 NA 844.33 Yes
5/12/2004 ND 12.79 NA 844.29 Yes
11/10/2004 ND 13.37 NA 843.71 Yes
5/31/2005 ND 12.51 NA 844.57 Yes
11/15/2005 ND 14.55 NA 842.53 Yes
5/22/2006 ND 13.85 NA 843.23 Yes
11/22/2006 ND 9.84 NA 847.24 Yes
5/22/2007 ND 13.21 NA 843.87 Yes
11/13/2007 ND 15.90 NA 841.18 Yes
5/28/2008 ND 15.40 NA 841.68 Yes
11/20/2008 ND 16.00 NA 841.08 Yes
5/13/2009 ND 14.52 NA 842.56 Yes
11/17/2009 ND 14.84 NA 842.24 Yes
5/30/2013 ND 14.93 NA 842.15 Yes
5/27/2014 ND 12.61 NA 844.47 Yes
5/26/2015 ND 14.73 NA 842.35 Yes
5/11/2016 ND 13.23 NA 843.85 Yes
5/23/2017 ND 14.88 NA 842.20 Yes
5/9/2018 ND 14.87 NA 842.21 Yes
5/28/2019 ND 11.07 NA 846.01 Yes
5/14/2020 ND 12.13 NA 844.95 Yes
5/4/2021 ND 10.14 NA 846.94 Yes
5/11/2022 ND 14.41 NA 842.67 Yes
5/9/2023 ND 12.61 NA 844.47 Yes
MW-36
Page 29 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
861.25 833.3 48.0 11/13/2002 ND 33.05 NA 828.20 No
5/23/2003 ND 22.22 NA 839.03 Yes
11/24/2003 ND 23.43 NA 837.82 Yes
5/12/2004 ND 24.30 NA 836.95 Yes
11/10/2004 NM NM NM NM NM
5/31/2005 ND 23.75 NA 837.50 Yes
11/15/2005 NM 26.88*NM NM NM
5/22/2006 NM 25.91*NM NM NM
11/22/2006 NM 26.37*NM NM NM
5/22/2007 ND 24.39 NA 836.86 Yes
11/13/2007 NM NM NM NM NM
5/28/2008 NM 28.45*NM NM NM
11/18/2008 ND 29.98 NA 831.27 No
5/13/2009 NM 26.57*NM NM NM
11/16/2009 ND 29.43 NA 831.82 No
5/30/2013 NM NM NM NM NM
5/26/2015 ND 27.34 NA 833.91 Yes
5/11/2016 NM NM NM NM NM
5/23/2017 ND 28.92 NA 832.33 No
5/9/2018 ND 29.27 NA 831.98 No
5/28/2019 ND 21.66 NA 839.59 Yes
5/14/2020 ND 23.64 NA 837.61 Yes
5/4/2021 ND 20.20 NA 841.05 Yes
5/11/2022 ND 28.06 NA 833.19 No
5/9/2023 ND 25.11 NA 836.14 Yes
MW-37
Page 30 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
863.93 838.9 55.0 11/13/2002 ND 33.95 NA 829.98 No
5/23/2003 ND 24.90 NA 839.03 Yes
11/24/2003 ND 23.20 NA 840.73 Yes
5/12/2004 ND 24.49 NA 839.44 Yes
11/10/2004 ND 24.94 NA 838.99 Yes
5/31/2005 ND 23.69 NA 840.24 Yes
11/15/2005 ND 26.27 NA 837.66 No
5/22/2006 NM NM NM NM NM
11/22/2006 ND 26.45 NA 837.48 No
5/22/2007 ND 24.27 NA 839.66 Yes
11/13/2007 NM NM NM NM NM
5/28/2008 NM NM NM NM NM
11/20/2008 ND 29.65 NA 834.28 No
5/13/2009 ND 27.14 NA 836.79 No
11/16/2009 ND 28.90 NA 835.03 No
5/30/2013 ND 29.29 NA 834.64 No
5/26/2015 ND 27.19 NA 836.74 No
5/11/2016 ND 24.94 NA 838.99 Yes
5/23/2017 ND 29.06 NA 834.87 No
5/9/2018 ND 29.51 NA 834.42 No
5/28/2019 ND 21.64 NA 842.29 Yes
5/14/2020 ND 23.58 NA 840.35 Yes
5/4/2021 ND 20.40 NA 843.53 Yes
5/11/2022
5/9/2023 ND 25.84 NA 838.09 No
MW-38
Dry
Page 31 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
NM NM 55.0 11/13/2002 ND 33.35*NM NM NM
5/28/2003 ND 23.53 NA NA NM
11/17/2003 ND 21.68 NA NA NM
5/12/2004 ND 23.28*NM NM NM
5/27/2005 ND 22.43 NA NA NM
5/31/2005 ND 22.49*NM NM NM
11/15/2005 ND 21.07*NM NM NM
5/22/2006 ND 20.66*NM NM NM
5/7/2007 ND 18.91*NM NM NM
11/13/2007 ND 27.11 NA NA NM
5/9/2008 ND 27.85*NM NM NM
11/20/2008 ND 28.45 NA NA NM
5/13/2009 ND 25.95 NA NA NM
11/16/2009 ND 27.66 NA NA NM
5/30/2013
5/26/2015 ND 25.97 NA NA NM
5/11/2016 ND 23.70 NA NA NM
5/23/2017 ND 27.78 NA NA NM
5/9/2018
5/28/2019
5/14/2020
5/4/2021 ND 19.14 NA NA NM
5/11/2022
5/9/2023 ND 24.46 NA NA NM
MW-39
Could Not Locate
Could Not Locate
Could Not Locate
Could Not Locate
Could Not Locate
Page 32 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
859.27 839.3 50.0 11/13/2002 ND 28.85 NA 830.42 No
5/23/2003 ND 19.45 NA 839.82 Yes
11/24/2003 ND 17.91 NA 841.36 Yes
5/12/2004 ND 19.30 NA 839.97 Yes
11/10/2004 ND 19.72 NA 839.55 Yes
5/31/2005 ND 18.51 NA 840.76 Yes
11/15/2005 ND 21.09 NA 838.18 No
5/22/2006 NM NM NM NM NM
11/22/2006 NM NM NM NM NM
5/22/2007 ND 19.11 NA 840.16 Yes
11/13/2008 NM NM NM NM NM
5/28/2008 NM NM NM NM NM
11/20/2008 ND 24.48 NA 834.79 No
5/13/2009 ND 22.02 NA 837.25 No
11/16/2009 ND 23.69 NA 835.58 No
5/2/2012 ND 27.61 NA 831.66 No
5/30/2013 NM NM NM NM NM
5/27/2014 ND 19.55 NA 839.72 Yes
5/26/2015 ND 22.03 NA 837.24 No
5/11/2016 ND 19.73 NA 839.54 Yes
5/23/2017 ND 23.77 NA 835.50 No
5/9/2018 NM NM NM NM NM
5/28/2019 ND 16.42 NA 842.85 Yes
5/14/2020 ND 18.27 NA 841.00 Yes
5/4/2021 ND 15.19 NA 844.08 Yes
5/11/2022 ND 22.55 NA 836.72 No
5/9/2023 Could Not Locate
MW-40
Page 33 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
857.75 832.8 50.0 11/13/2002 NM 27.12*NM NM NM
5/23/2003 ND 17.83 NA 839.92 Yes
11/24/2003 ND 15.97 NA 841.78 Yes
5/12/2004 ND 17.28 NA 840.47 Yes
11/10/2004 ND 17.72 NA 840.03 Yes
5/31/2005 ND 16.51 NA 841.24 Yes
11/15/2005 NM 19.05*NM NM NM
5/22/2006 NM 18.63*NM NM NM
5/7/2007 ND 18.61 NA 839.14 Yes
11/13/2007 ND 21.18 NA 836.57 Yes
5/9/2008 ND 21.90 NA 835.85 Yes
11/19/2008 ND 22.56 NA 835.19 Yes
5/13/2009 ND 20.15 NA 837.60 Yes
11/17/2009 ND 21.75 NA 836.00 Yes
5/30/2013 NM NM NM NM NM
5/27/2014 NM NM NM NM NM
5/26/2015 NM NM NM NM NM
5/11/2016 17.75 18.02 0.27 839.92 **Yes
5/23/2017
5/9/2018
5/28/2019
5/14/2020
5/4/2021
5/11/2022
5/9/2023
MW-41
Well Under Wood Pile
Well Under Wood Pile
Well Under Wood Pile
Well Under Wood Pile
Well Under Wood Pile
Well Under Wood Pile
Well Under Wood Pile
Page 34 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
864.26 839.3 35.0 5/15/2002 31.20 32.25 1.05 832.77 **No
11/13/2002 32.80 33.85 1.05 831.17 **No
5/28/2003 23.15 25.40 2.25 840.48 **Yes
11/17/2003 21.40 21.42 0.02 842.85 **Yes
5/12/2004 22.95 22.97 0.02 841.30 **Yes
11/10/2004 23.39 23.44 0.05 840.86 **Yes
5/27/2005 ND 22.05 NA 842.21 Yes
11/15/2005 24.67 25.43 0.76 839.38 **Yes
5/22/2006 24.28 24.82 0.54 839.83 **Yes
11/22/2006 24.63 25.24 0.61 839.46 **Yes
5/7/2007 22.50 22.95 0.45 841.63 **Yes
11/13/2007 26.90 27.45 0.55 837.21 **No
5/9/2008 28.28 28.30 0.02 835.97 **No
5/27/2014 22.63 22.67 0.04 841.62 **Yes
5/11/2016 23.02 23.03 0.01 841.24 **Yes
5/23/2017 ND 27.19 NA 837.07 No
5/9/2018 27.78 27.82 0.04 836.47 **No
5/28/2019 19.74 20.02 0.28 844.44 **Yes
5/14/2020 21.41 21.90 0.49 842.71 **Yes
5/5/2021 18.41 18.54 0.13 845.81 **Yes
5/11/2022 ND 25.96 NA 838.30 Yes
5/9/2023 ND 23.72 NA 840.54 Yes
MW-1
Recovery Wells
Page 35 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
864.90 844.9 30.0 5/15/2002 ND 31.30 NA 833.6 No
11/13/2002 32.95 32.96 0.01 831.95 **No
5/28/2003 ND 23.90 NA 841.00 No
11/17/2003 ND 21.88 NA 843.02 No
5/12/2004 23.34 23.35 0.01 841.56 **No
5/27/2005 ND 22.58 NA 842.32 No
11/15/2005 25.25 25.26 0.01 839.65 **No
5/22/2006 ND 24.70 NA 840.20 No
11/22/2006 ND 25.15 NA 839.75 No
5/7/2007 23.01 23.02 0.01 841.89 **No
11/13/2007 27.29 27.29 0.00 837.61 **No
5/9/2008 ND 28.00 NA 836.90 No
5/27/2014 ND 23.12 NA 841.78 No
5/27/2015 ND 25.85 NA 839.05 No
5/11/2016 ND 23.53 NA 841.37 No
5/23/2017 ND 27.48 NA 837.42 No
5/9/2018 ND 28.00 NA 836.90 No
5/28/2019 ND 20.22 NA 844.68 No
5/14/2020 ND 21.90 NA 843.00 No
5/5/2021 ND 18.95 NA 845.95 Yes
5/11/2022
5/9/2023 ND 24.17 NA 840.73 No
MW-23
Could Not Locate
Page 36 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
864.56 844.6 35.0 5/15/2002 30.32 31.15 0.83 834.01 **No
11/13/2002 31.43 33.62 2.19 832.52 **No
5/28/2003 23.6 24.33 0.73 840.76 **No
11/17/2003 21.33 21.43 0.10 843.20 **No
5/12/2004 22.6 22.92 0.32 841.87 **No
11/10/2004 23.08 23.55 0.47 841.35 **No
5/27/2005 21.81 22.96 1.15 842.43 **No
11/15/2005 24.26 24.39 0.13 840.26 **No
5/22/2006 23.73 23.96 0.23 840.77 **No
11/22/2006 24.4 24.53 0.13 840.12 **No
5/7/2007 22.28 22.29 0.01 842.28 **No
11/13/2007 25.9 26.58 0.68 838.47 **No
5/9/2008 ND 26.53 NA 838.03 No
11/21/2012 ND DRY NA NA NA
5/27/2014 ND 22.37 NA 842.19 No
5/27/2015 ND 24.41 NA 840.15 No
5/11/2016 22.62 22.63 0.01 841.94 **No
5/23/2017 ND 25.83 NA 838.73 No
5/9/2018 ND 26.33 NA 838.23 No
5/28/2019
5/14/2020 ND 21.13 NA 843.43 No
5/5/2021 ND 18.42 NA 846.14 Yes
5/11/2022
5/9/2023 ND 23.39 NA 841.17 No
MW-25
Could Not Open Lock On Vault
Could Not Open Lock On Vault
Page 37 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
863.46 843.5 40.0 5/15/2002 30.25 31.65 1.4 832.82 **No
11/13/2002 31.9 32.75 0.85 831.32 **No
5/28/2003 22.3 23.54 1.24 840.81 **No
11/17/2003 ND 20.50 NA 842.96 No
5/12/2004 21.98 22.20 0.22 841.42 **No
11/10/2004 22.51 22.71 0.2 840.89 **No
5/27/2005 21.12 21.32 0.2 842.28 **No
11/15/2005 23.94 24.20 0.26 839.45 **No
5/22/2006 23.4 23.46 0.06 840.04 **No
11/22/2006 23.75 23.76 0.01 839.71 **No
5/7/2007 21.74 21.76 0.02 841.71 **No
11/13/2007 25.97 26.17 0.2 837.43 **No
5/9/2008 26.96 27.10 0.14 836.46 **No
11/16/2010 ND 24.31 NA 839.15 No
11/22/2011 27.75 27.89 0.14 835.67 **No
11/21/2012 28.43 28.83 0.4 834.92 **No
5/27/2014 ND 21.85 NA 841.61 No
5/11/2016 Trace 22.64 Trace 840.82 No
5/23/2017 ND 26.57 NA 836.89 No
5/9/2018 ND 27.12 NA 836.34 No
5/28/2019 19.00 19.02 0.02 844.44 **Yes
5/14/2020 20.74 20.76 0.02 842.71 **No
5/5/2021 ND 18.15 NA 845.31 Yes
5/11/2022 ND 25.29 NA 838.17 No
5/9/2023 ND 23.13 NA 840.33 No
RW-1
Page 38 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
862.34 837.3 45.0 5/15/2002 29.95 30.65 0.70 832.19 **No
11/13/2002 31.30 33.95 2.65 830.30 **No
5/28/2003 22.45 23.75 1.30 839.53 **Yes
11/17/2003 20.25 20.31 0.06 842.07 **Yes
5/12/2004 21.80 21.97 0.17 840.49 **Yes
11/10/2004 22.40 22.43 0.03 839.93 **Yes
5/27/2005 20.95 21.02 0.07 841.37 **Yes
11/15/2005 23.57 23.92 0.35 838.67 **Yes
5/22/2006 23.25 23.42 0.17 839.04 **Yes
11/22/2006 23.60 23.80 0.20 838.68 **Yes
5/7/2007 21.58 21.74 0.16 840.72 **Yes
11/13/2007 25.78 26.13 0.35 836.46 **No
5/9/2008 ND 26.49 NA 835.85 No
11/21/2012 28.27 28.28 0.01 834.07 **No
5/27/2014 22.05 22.07 0.02 840.28 **Yes
5/27/2015 24.70 24.75 0.05 837.63 **Yes
5/11/2016 Trace 22.60 Trace 839.74 Yes
5/23/2017 ND 26.52 NA 835.82 No
5/9/2018 ND 26.95 NA 835.39 No
5/28/2019 ND 19.69 NA 842.65 Yes
5/14/2020 ND 20.82 NA 841.52 Yes
5/5/2021 ND 18.28 NA 844.06 Yes
5/11/2022 ND 25.20 NA 837.14 No
5/9/2023 ND 23.23 NA 839.11 Yes
RW-2
Page 39 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
862.37 842.4 40.0 5/15/2002 29.60 32.10 2.50 832.07 **No
11/13/2002 31.20 34.50 3.30 830.25 **No
5/28/2003 21.95 23.60 1.65 839.96 **No
11/17/2003 20.07 21.20 1.13 841.98 **No
5/12/2004 21.60 22.35 0.75 840.56 **No
11/10/2004 22.05 22.80 0.75 840.11 **No
11/15/2005 23.56 23.67 0.11 838.78 **No
5/22/2006 23.10 23.28 0.18 839.22 **No
11/22/2006 23.14 23.15 0.01 839.23 **No
5/7/2007 21.34 21.36 0.02 841.02 **No
11/13/2007 25.73 26.21 0.48 837.60 **No
5/9/2008 ND 27.20 NA 835.17 No
11/16/2010 ND 23.91 NA 838.46 No
11/22/2011 ND 27.41 NA 834.96 No
11/21/2012 28.27 28.47 0.20 835.13 **No
5/27/2014 22.07 22.08 0.01 841.39 **No
5/11/2016 22.36 22.37 0.01 841.10 **No
5/23/2017 Trace 26.38 NA 835.99 No
5/9/2018 ND 26.90 NA 835.47 No
5/28/2019 18.85 18.89 0.04 844.60 **Yes
5/14/2020 ND 20.98 NA 841.39 No
5/5/2021 17.64 17.71 0.07 845.80 **Yes
5/11/2022 25.02 25.22 0.20 838.38 **No
5/9/2023 23.00 23.02 0.02 840.45 **No
RW-3
Page 40 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
863.73 843.7 45.0 5/15/2002 29.3 30.05 0.75 834.22 **No
11/13/2002 31.08 31.28 0.20 832.59 **No
5/28/2003 ND 21.75 NA 841.98 No
11/17/2003 20.1 20.14 0.04 843.62 **No
5/12/2004 21.6 21.78 0.18 842.08 **No
11/10/2004 22.18 22.21 0.03 841.54 **No
5/27/2005 ND 20.55 NA 843.18 No
11/15/2005 23.24 23.62 0.38 840.38 **No
5/22/2006 22.84 22.98 0.14 840.85 **No
11/22/2006 23.22 23.24 0.02 840.50 **No
5/7/2007 21.11 21.13 0.02 842.61 **No
11/13/2007 25.56 25.63 0.07 838.15 **No
5/9/2008 25.86 25.88 0.02 837.86 **No
11/16/2009 ND 25.88 NA 837.85 No
5/1/2010 ND 21.74 NA 841.99 No
11/21/2012 26.98 27.02 0.04 836.74 **No
5/27/2014 20.72 20.73 0.01 843.01 **No
5/27/2015 ND 23.37 NA 840.36 No
5/11/2016 NM NM NM NM NM
5/23/2017 25.28 25.31 0.03 838.44 **No
5/9/2018 ND 25.76 NA 837.97 No
5/28/2019 18.40 18.43 0.03 845.30 **Yes
5/14/2020 20.03 20.05 0.02 843.69 **No
5/5/2021 ND 17.40 NA 846.33 Yes
5/11/2022 ND 24.42 NA 839.31 No
5/9/2023 ND 22.22 NA 841.51 No
RW-4
Page 41 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
862.22 838.2 34.0 5/15/2002 29.25 29.80 0.55 832.82 **No
11/13/2002 30.90 31.00 0.10 831.29 **No
5/28/2003 21.40 22.00 0.60 840.22 **Yes
11/17/2003 ND 19.60 NA 842.62 Yes
5/12/2004 21.02 21.19 0.17 841.15 **Yes
11/10/2004 21.51 21.55 0.04 840.70 **Yes
5/27/2005 20.16 20.23 0.07 842.04 **Yes
11/15/2005 23.10 23.42 0.32 839.03 **Yes
5/22/2006 22.58 22.60 0.02 839.63 **Yes
11/22/2006 22.60 22.61 0.01 839.62 **Yes
5/7/2007 20.65 20.66 0.01 841.57 **Yes
11/13/2007 25.07 25.38 0.31 837.06 **No
5/9/2008 25.89 25.96 0.07 836.31 **No
5/27/2014 ND 20.57 NA 841.65 Yes
5/27/2015 ND 23.28 NA 838.94 Yes
5/11/2016 ND 21.11 NA 841.11 Yes
5/23/2017 ND 25.13 NA 837.09 No
5/9/2018 ND 25.74 NA 836.48 No
5/28/2019 ND 17.95 NA 844.27 Yes
5/14/2020 ND 19.60 NA 842.62 Yes
5/5/2021 ND 16.66 NA 845.56 Yes
5/11/2022 ND 23.90 NA 838.32 Yes
5/9/2023 ND 21.61 NA 840.61 Yes
RW-5
Page 42 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
861.84 841.8 45.0 5/15/2002 29.15 31.75 2.60 831.96 **No
11/13/2002 30.87 33.90 3.03 830.12 **No
5/28/2003 ND 21.90 NA 839.94 No
11/17/2003 19.95 19.98 0.03 841.88 **Yes
5/12/2004 21.39 22.39 1.00 840.17 **No
11/10/2004 21.95 21.97 0.02 839.88 **No
5/27/2005 20.65 20.81 0.16 841.15 **No
11/15/2005 23.25 23.73 0.48 838.46 **No
5/22/2006 ND 22.81 NA 839.03 No
11/22/2006 ND 23.70 NA 838.14 No
5/7/2007 ND 21.15 NA 840.69 No
11/13/2007 25.4 25.70 0.30 836.36 **No
5/9/2008 26.2 27.33 1.13 835.32 **No
11/18/2009 ND 26.11 NA 835.73 No
11/16/2010 ND 23.58 NA 838.26 No
11/17/2011 27.19 27.32 0.13 834.61 **No
11/21/2012 27.88 28.03 0.15 833.92 **No
5/30/2013 ND 26.40 NA 835.44 No
5/27/2014 ND 21.78 NA 840.06 No
5/27/2015 ND 24.40 NA 837.44 No
5/11/2016 ND 22.04 NA 839.80 No
5/23/2017 ND 25.13 NA 836.71 No
5/9/2018 ND 26.58 NA 835.26 No
5/28/2019 ND 18.67 NA 843.17 Yes
5/14/2020 ND 20.50 NA 841.34 No
5/5/2021 ND 18.43 NA 843.41 Yes
5/11/2022 ND 24.90 NA 836.94 No
5/9/2023 ND 22.75 NA 839.09 No
RW-6
Page 43 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
862.09 841.1 48.0 5/15/2002 28.70 29.50 0.80 833.17 **No
11/13/2002 30.40 30.72 0.32 831.60 **No
5/28/2003 ND 21.10 NA 840.99 No
11/17/2003 19.48 19.50 0.02 842.60 **Yes
5/12/2004 20.76 20.78 0.02 841.32 **Yes
11/10/2004 21.02 21.03 0.01 841.07 **No
5/27/2005 19.98 20.00 0.02 842.10 **Yes
11/15/2005 22.64 22.72 0.08 839.43 **No
5/22/2006 22.13 22.14 0.01 839.96 **No
11/22/2006 22.19 22.20 0.01 839.90 **No
5/7/2007 20.43 20.45 0.02 841.65 **Yes
11/13/2007 24.69 24.78 0.09 837.37 **No
5/9/2008 25.23 25.24 0.01 836.86 **No
11/21/2012 ND 26.60 NA 835.49 No
5/27/2014 ND 20.25 NA 841.84 Yes
5/27/2015 23.02 23.03 0.01 839.07 **No
5/11/2016 20.88 20.90 0.02 841.2 **Yes
5/23/2017 24.69 24.86 0.17 837.35 **No
5/9/2018 25.42 25.57 0.15 836.63 **No
5/28/2019
5/14/2020
5/5/2021 16.59 16.67 0.08 845.48 **Yes
5/11/2022
5/9/2023 21.29 21.34 0.05 840.79 **No
RW-8
Could Not Open Vault
Could Not Open Vault
Could Not Open Vault
Page 44 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
862.91 846.9 41.0 5/15/2002 28.95 31.30 2.35 833.30 **No
11/13/2002 30.7 32.65 1.95 831.66 **No
5/28/2003 21.1 22.80 1.70 841.33 **No
11/17/2003 19.4 19.60 0.20 843.45 **No
5/12/2004 21.8 22.40 0.60 840.94 **No
11/10/2004 21.3 21.50 0.20 841.55 **No
5/27/2005 20.1 20.16 0.06 842.79 **No
11/15/2005 22.8 22.99 0.19 840.06 **No
5/22/2006 22.27 22.33 0.06 840.62 **No
11/22/2006 ND 20.94 NA 841.97 No
5/7/2007 20.5 20.51 0.01 842.41 **No
11/13/2007 24 25.29 1.29 838.55 **No
5/9/2008 25.69 25.70 0.01 837.22 **No
11/19/2009 25.63 25.64 0.01 837.28 **No
11/16/2010 ND 23.04 NA 839.87 No
11/22/2011 ND 26.90 NA 836.01 No
11/21/2012 ND 27.49 NA 835.42 No
5/30/2013 ND 25.70 NA 837.21 No
5/27/2014 21.61 21.64 0.03 841.29 **No
5/27/2015 ND 23.63 NA 839.28 No
5/11/2016 ND 21.28 NA 841.63 No
5/23/2017 ND 25.54 NA 837.37 No
5/9/2018 ND 26.06 NA 836.85 No
5/28/2019 17.94 17.95 0.01 844.96 **No
5/14/2020 ND 19.61 NA 843.30 No
5/5/2021 ND 16.66 NA 846.25 No
5/11/2022 ND 24.03 NA 838.88 No
5/9/2023 ND 21.73 NA 841.18 No
RW-9
Page 45 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
861.38 836.4 50.0 5/15/2002 28.60 31.20 2.60 832.05 **No
11/13/2002 30.23 33.40 3.17 830.26 **No
5/28/2003 ND 21.13 NA 840.25 Yes
11/17/2003 ND 19.22 NA 842.16 Yes
5/12/2004 20.69 20.74 0.05 840.68 **Yes
11/10/2004 21.16 21.20 0.04 840.21 **Yes
5/27/2005 19.80 19.86 0.06 841.56 **Yes
11/15/2005 22.56 22.58 0.02 838.81 **Yes
5/22/2006 22.08 22.10 0.02 839.29 **Yes
11/22/2006 21.52 21.54 0.02 839.85 **Yes
5/7/2007 20.24 20.26 0.02 841.13 **Yes
11/13/2007 24.72 24.81 0.09 836.63 **Yes
5/9/2008 25.54 25.64 0.10 835.81 **No
11/21/2012 27.34 27.38 0.04 834.03 **No
5/27/2014 ND 20.73 NA 840.65 Yes
5/27/2015 23.00 23.65 0.65 838.20 **Yes
5/11/2016 ND 21.25 NA 840.13 Yes
5/23/2017 25.31 25.34 0.03 836.06 **No
5/9/2018 ND 25.88 NA 835.50 No
5/28/2019 17.96 17.98 0.02 843.41 **Yes
5/14/2020 19.67 19.73 0.06 841.69 **Yes
5/5/2021 ND 16.68 NA 844.70 Yes
5/11/2022 23.99 24.01 0.02 837.37 **Yes
5/9/2023 Could Not Open Vault
RW-10
Page 46 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
863.02 840.0 48.0 5/15/2002 30.5 32.90 2.40 831.85 **No
11/13/2002 32.03 35.65 3.62 829.98 **No
5/28/2003 23.2 24.05 0.85 839.58 **No
11/17/2003 21.29 21.39 0.10 841.70 **Yes
5/12/2004 22.85 23.00 0.15 840.13 **Yes
11/10/2004 23.41 23.60 0.19 839.56 **No
5/27/2005 22.00 22.28 0.28 840.94 **Yes
11/15/2005 24.78 24.95 0.17 838.19 **No
5/22/2006 24.25 24.44 0.19 838.72 **No
11/22/2006 24.45 24.57 0.12 838.54 **No
5/7/2007 22.63 22.64 0.01 840.39 **Yes
11/13/2007 26.83 27.36 0.53 836.04 **No
5/9/2008 NM NM NM NM NM
11/21/2012 29.28 29.39 0.11 833.71 **No
5/27/2014 22.92 22.94 0.02 840.09 **Yes
5/27/2015 ND 24.04 NA 838.98 No
5/11/2016 Trace 23.75 Trace 839.27 No
5/23/2017 27.50 27.84 0.34 835.42 **No
5/9/2018 27.98 28.02 0.04 835.03 **No
5/28/2019 20.10 20.30 0.20 842.86 **Yes
5/14/2020 22.00 22.07 0.07 841.00 **Yes
5/5/2021 ND 19.50 NA 843.52 Yes
5/11/2022 26.53 26.72 0.19 836.30 **No
5/9/2023 ND 24.44 NA 838.58 No
RW-11
Page 47 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
860.89 839.9 46.0 5/15/2002 28.12 30.70 2.58 832.05 **No
11/13/2002 30.05 31.11 1.06 830.54 **No
5/28/2003 ND 22.88 NA 838.01 No
11/17/2003 18.84 18.85 0.01 842.05 **Yes
5/12/2004 20.24 20.25 0.01 840.65 **Yes
11/10/2004 20.68 20.69 0.01 840.21 **Yes
5/27/2005 ND 20.33 NA 840.56 Yes
11/15/2005 22.04 22.23 0.19 838.80 **No
5/22/2006 21.6 21.61 0.01 839.29 **No
11/22/2006 25.03 25.04 0.01 835.86 **No
5/7/2007 19.78 19.80 0.02 841.10 **Yes
11/13/2007 24.23 24.39 0.16 836.62 **No
5/9/2008 24.84 24.85 0.01 836.05 **No
11/21/2012 ND 26.92 NA 833.97 No
5/27/2014 22.92 22.94 0.02 837.96 **No
5/27/2015 ND 23.08 NA 837.81 No
5/11/2016 ND 20.75 NA 840.14 Yes
5/23/2017 ND 24.77 NA 836.12 No
5/9/2018 ND 25.33 NA 835.56 No
5/28/2019 ND 17.49 NA 843.40 Yes
5/14/2020 ND 19.17 NA 841.72 Yes
5/5/2021 ND 16.21 NA 844.68 Yes
5/11/2022 ND 23.48 NA 837.41 No
5/9/2023 ND 21.13 NA 839.76 No
RW-12
Page 48 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
861.32 840.3 46.0 5/15/2002 28.55 29.50 0.95 832.50 **No
11/13/2002 30.25 30.40 0.15 831.03 **No
5/28/2003 20.5 20.65 0.15 840.78 **Yes
11/17/2003 19.1 19.20 0.10 842.19 **Yes
5/12/2004 20.35 20.36 0.01 840.97 **Yes
11/10/2004 20.8 20.82 0.02 840.51 **Yes
5/27/2005 19.45 19.54 0.09 841.84 **Yes
11/15/2005 22.15 22.44 0.29 839.09 **No
5/22/2006 21.75 21.85 0.10 839.54 **No
5/7/2007 19.9 19.92 0.02 841.41 **Yes
11/13/2007 24.35 24.58 0.23 836.91 **No
5/9/2008 24.98 25.00 0.02 836.33 **No
11/16/2009 25.1 25.11 0.01 836.22 **No
11/21/2012 ND 26.93 NA 834.39 No
5/30/2013 ND 24.95 NA 836.37 No
5/27/2014 ND 20.05 NA 841.27 Yes
5/27/2015 ND 22.98 NA 838.34 No
5/11/2016 NM NM NM NM NA
5/23/2017 ND 24.08 NA 837.24 No
5/9/2018 ND 25.29 NA 836.03 No
5/28/2019 ND 17.54 NA 843.78 Yes
5/14/2020 ND 19.15 NA 842.17 Yes
5/5/2021 ND 16.24 NA 845.08 Yes
5/11/2022 ND 23.42 NA 837.90 No
5/9/2023 ND 20.99 NA 840.33 Yes
RW-13
Page 49 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
862.27 844.3 43.0 5/15/2002 29.6 32.10 2.50 831.97 **No
11/13/2002 31.15 34.77 3.62 830.11 **No
5/28/2003 22.05 24.10 2.05 839.65 **No
11/17/2003 20.33 20.63 0.30 841.86 **No
5/12/2004 21.85 22.00 0.15 840.38 **No
11/10/2004 22.42 22.65 0.23 839.79 **No
5/27/2005 21.01 21.12 0.11 841.23 **No
11/15/2005 23.82 23.91 0.09 838.42 **No
5/22/2006 23.28 23.30 0.02 838.98 **No
5/7/2007 21.52 21.54 0.02 840.74 **No
11/13/2007 25.83 26.30 0.47 836.31 **No
5/9/2008 26.6 26.69 0.09 835.64 **No
11/16/2009 ND 26.21 NA 836.06 No
11/16/2010 ND 23.62 NA 838.65 No
11/22/2011 ND 27.06 NA 835.21 No
11/21/2012 28.01 28.08 0.07 834.24 **No
5/30/2013 ND 26.70 NA 835.57 No
5/27/2014 ND 21.59 NA 840.68 No
5/27/2015 ND 24.30 NA 837.97 No
5/11/2016 Trace 22.30 Trace 839.97 No
5/23/2017 ND 26.18 NA 836.09 No
5/9/2018 ND 26.61 NA 835.66 No
5/28/2019 18.86 18.87 0.01 843.40 **No
5/14/2020 ND 20.61 NA 841.66 No
5/5/2021 ND 18.39 NA 843.88 No
5/11/2022 25.37 25.50 0.13 836.77 **No
5/9/2023 ND 23.18 NA 839.09 No
RW-15
Page 50 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
862.50 841.5 46.0 5/15/2002 29.7 31.90 2.20 832.18 **No
11/13/2002 31.4 34.00 2.60 830.37 **No
5/28/2003 22.35 23.55 1.20 839.81 **No
11/17/2003 20.22 20.65 0.43 842.16 **Yes
5/12/2004 21.86 21.87 0.01 840.64 **No
11/10/2004 22.39 22.41 0.02 840.10 **No
5/27/2005 21.12 21.14 0.02 841.37 **No
11/15/2005 23.63 23.88 0.25 838.80 **No
5/22/2006 23.29 23.43 0.14 839.17 **No
11/22/2006 23.63 23.72 0.09 838.84 **No
5/7/2007 21.55 21.58 0.03 840.94 **No
11/13/2007 25.86 25.97 0.11 836.61 **No
5/9/2008 26.6 27.10 0.50 835.76 **No
11/18/2009 ND 26.61 NA 835.89 No
11/16/2010 ND 24.27 NA 838.23 No
11/17/2011 ND 27.67 NA 834.83 No
11/21/2012 28.3 28.31 0.01 834.20 **No
5/30/2013 ND 27.00 NA 835.50 No
5/27/2014 ND 22.19 NA 840.31 No
5/27/2015 ND 20.35 NA 842.15 Yes
5/11/2016 ND 22.52 NA 839.98 No
5/23/2017 ND 26.52 NA 835.98 No
5/9/2018 ND 26.97 NA 835.53 No
5/28/2019 ND 19.61 NA 842.89 Yes
5/14/2020 ND 20.80 NA 841.70 Yes
5/5/2021 ND 17.85 NA 844.65 Yes
5/11/2022 ND 25.38 NA 837.12 No
5/9/2023 ND 23.10 NA 839.40 No
RW-16
Page 51 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
863.07 844.1 39.0 15/05/2002 29.8 30.40 0.6 833.10 **No
13/11/2002 31.54 31.75 0.21 831.47 **No
28/05/2003 ND 22.20 NA 840.87 No
17/11/2003 20.11 20.21 0.1 842.93 **No
12/05/2004 21.68 21.76 0.08 841.37 **No
10/11/2004 22.17 22.18 0.01 840.90 **No
27/05/2005 20.85 20.87 0.02 842.21 **No
15/11/2005 23.5 23.60 0.1 839.54 **No
22/05/2006 23.02 23.04 0.02 840.04 **No
22/11/2006 23.41 23.42 0.01 839.66 **No
7/05/2007 21.3 21.31 0.01 841.77 **No
13/11/2007 25.64 25.79 0.15 837.39 **No
9/05/2008 26.42 26.50 0.08 836.63 **No
17/11/2009 ND 26.32 NA 836.75 No
16/11/2010 ND 23.78 NA 839.29 No
17/11/2011 27.41 27.54 0.13 835.62 **No
21/11/2012 28.09 28.18 0.09 834.95 **No
30/05/2013 ND 26.60 NA 836.47 No
27/05/2014 ND 21.83 NA 841.24 No
5/11/2016 ND 22.12 NA 840.95 No
5/23/2017 ND 26.24 NA 836.83 No
5/9/2018 ND 26.73 NA 836.34 No
5/28/2019 ND 18.71 NA 844.36 Yes
5/14/2020 ND 20.52 NA 842.55 No
5/5/2021 ND 17.42 NA 845.65 Yes
5/11/2022 ND 25.04 NA 838.03 No
5/9/2023 ND 22.83 NA 840.24 No
RW-18
Page 52 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
859.85 818.9 41.0 5/15/2002 26.85 29.10 2.25 832.37 **Yes
11/13/2002 28.35 31.92 3.57 830.50 **Yes
5/28/2003 19.3 21.40 2.10 839.96 **Yes
11/17/2003 17.53 17.67 0.14 842.28 **Yes
5/12/2004 19.05 19.15 0.10 840.77 **Yes
11/10/2004 19.53 19.74 0.21 840.26 **Yes
5/27/2005 18.21 18.41 0.20 841.58 **Yes
11/15/2005 21.87 21.92 0.05 837.97 **Yes
5/22/2006 20.41 20.42 0.01 839.44 **Yes
11/22/2006 20.76 20.77 0.01 839.09 **Yes
5/7/2007 18.65 18.66 0.01 841.20 **Yes
11/13/2007 23.07 23.18 0.11 836.75 **Yes
5/9/2008 23.75 23.90 0.15 836.06 **Yes
5/27/2014 ND 19.37 NA 840.48 Yes
5/27/2015 ND 21.99 NA 837.86 Yes
5/11/2016 ND 19.62 NA 840.23 Yes
5/23/2017 ND 23.65 NA 836.20 Yes
5/9/2018 ND 24.16 NA 835.69 Yes
5/28/2019 ND 16.30 NA 843.55 Yes
5/14/2020 ND 18.07 NA 841.78 Yes
5/5/2021 ND 15.05 NA 844.80 Yes
5/11/2022 ND 22.39 NA 837.46 Yes
5/9/2023 ND 20.25 NA 839.60 Yes
RW-19
Page 53 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
864.63 844.6 40.0 5/15/2002 31.2 31.35 0.15 833.39 **No
11/13/2002 32.85 33.00 0.15 831.74 **No
5/28/2003 ND 23.79 NA 840.84 No
11/17/2003 ND 21.84 NA 842.79 No
5/12/2004 ND 23.20 NA 841.43 No
11/10/2004 ND 23.69 NA 840.94 No
5/27/2005 ND 22.40 NA 842.23 No
11/15/2005 25.06 25.07 0.01 839.57 **No
5/22/2006 24.57 24.70 0.13 840.02 **No
5/7/2007 22.94 22.96 0.02 841.68 **No
11/13/2007 26.98 27.15 0.17 837.60 **No
5/9/2008 27.58 27.59 0.01 837.05 **No
11/21/2012 28.99 29.04 0.05 835.63 **No
5/27/2014 22.73 22.74 0.01 841.90 **No
5/27/2015 ND 19.90 NA 844.73 Yes
5/11/2016 ND 23.40 NA 841.23 No
5/23/2017 ND 26.79 NA 837.84 No
5/9/2018 ND 27.43 NA 837.20 No
5/28/2019 ND 20.22 NA 844.41 No
5/14/2020 ND 21.85 NA 842.78 No
5/5/2021 ND 18.97 NA 845.66 Yes
5/11/2022 ND 25.83 NA 838.80 No
5/9/2023 ND 23.83 NA 840.80 No
RW-21
Page 54 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
864.61 845.6 39.0 5/15/2002 31.35 31.80 0.45 833.13 **No
11/13/2002 33.03 33.20 0.17 831.53 **No
5/28/2003 ND 23.90 NA 840.71 No
11/17/2003 21.90 21.94 0.04 842.70 **No
5/12/2004 23.30 23.48 0.18 841.26 **No
11/10/2004 23.78 23.96 0.18 840.78 **No
5/27/2005 22.47 22.51 0.04 842.13 **No
11/15/2005 25.68 25.85 0.17 838.88 **No
5/22/2006 24.72 24.79 0.07 839.87 **No
11/22/2006 25.13 25.14 0.01 839.48 **No
5/7/2007 22.96 22.97 0.01 841.65 **No
11/13/2007 27.25 27.88 0.63 837.18 **No
5/9/2008 ND 27.94 NA 836.67 No
11/21/2012 29.30 29.33 0.03 835.30 **No
5/27/2014 ND 22.73 NA 841.88 No
5/27/2015 ND 25.45 NA 839.16 No
5/11/2016 ND 23.25 NA 841.36 No
5/23/2017 ND 26.98 NA 837.63 No
5/9/2018 ND 27.22 NA 837.39 No
5/28/2019 ND 20.19 NA 844.42 No
5/14/2020 ND 21.86 NA 842.75 No
5/5/2021 ND 18.90 NA 845.71 Yes
5/11/2022 ND 26.04 NA 838.57 No
5/9/2023 ND 23.92 NA 840.69 No
RW-22
Page 55 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
861.81 843.8 38.0 5/15/2002 28.82 31.75 2.93 832.17 **No
11/13/2002 31.00 31.50 0.50 830.67 **No
5/28/2003 ND 21.65 NA 840.16 No
11/17/2003 20.21 20.34 0.13 841.56 **No
5/12/2004 21.31 21.41 0.10 840.47 **No
11/10/2004 21.70 21.72 0.02 840.10 **No
5/27/2005 ND 20.36 NA 841.45 No
11/15/2005 23.04 23.21 0.17 838.72 **No
5/22/2006 22.60 22.62 0.02 839.20 **No
5/7/2007 20.91 20.92 0.01 840.90 **No
11/13/2007 25.15 25.36 0.21 836.60 **No
5/9/2008 25.84 25.88 0.04 835.96 **No
5/27/2014 ND 21.30 NA 840.51 No
5/27/2015 ND 24.10 NA 837.71 No
5/11/2016 ND 21.78 NA 840.03 No
5/23/2017 ND 25.80 NA 836.01 No
5/9/2018 ND 26.34 NA 835.47 No
5/28/2019 ND 18.53 NA 843.28 No
5/14/2020 ND 20.25 NA 841.56 No
5/5/2021 ND 17.27 NA 844.54 Yes
5/11/2022 ND 24.58 NA 837.23 No
5/9/2023 ND 22.39 NA 839.42 No
RW-27
Page 56 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
863.75 842.8 41.0 15/05/2002 29.65 31.85 2.2 833.48 **No
13/11/2002 31.58 32.15 0.57 832.01 **No
28/05/2003 22.30 22.69 0.39 841.34 **No
17/11/2003 20.20 20.60 0.4 843.44 **Yes
12/05/2004 21.81 22.05 0.24 841.87 **No
10/11/2004 22.31 22.40 0.09 841.41 **No
27/05/2005 21.00 21.04 0.04 842.74 **No
15/11/2005 23.60 23.95 0.35 840.05 **No
22/05/2006 23.20 23.30 0.1 840.52 **No
22/11/2006 23.60 23.61 0.01 840.15 **No
7/05/2007 21.48 21.50 0.02 842.26 **No
13/11/2007 25.78 25.96 0.18 837.92 **No
9/05/2008 26.24 26.25 0.01 837.51 **No
17/11/2009 26.09 26.10 0.01 837.66 **No
16/11/2010 ND 23.58 NA 840.17 No
17/11/2011 27.15 27.41 0.26 836.53 **No
21/11/2012 ND 27.82 NA 835.93 No
27/05/2014 ND 21.76 NA 841.99 No
5/11/2016 ND 22.08 NA 841.67 No
5/23/2017 ND 26.06 NA 837.69 No
5/9/2018 ND 26.48 NA 837.27 No
5/28/2019 ND 18.65 NA 845.10 Yes
5/14/2020 ND 20.35 NA 843.40 Yes
5/5/2021 ND 17.34 NA 846.41 Yes
5/11/2022 ND 24.78 NA 838.97 No
5/9/2023 ND 22.64 NA 841.11 No
RW-30
Page 57 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
862.61 838.6 54.0 5/15/2002 28.80 30.10 1.30 833.45 **No
11/13/2002 30.53 31.80 1.27 831.72 **No
5/28/2003 ND 21.19 NA 841.42 Yes
11/17/2003 19.70 19.72 0.02 842.90 **Yes
5/12/2004 21.10 21.14 0.04 841.50 **Yes
11/10/2004 21.55 21.56 0.01 841.06 **Yes
5/27/2005 ND 20.20 NA 842.41 Yes
11/15/2005 22.94 22.95 0.01 839.67 **Yes
5/22/2006 22.23 22.25 0.02 840.37 **Yes
5/7/2007 ND 22.25 NA 840.36 Yes
11/13/2007 ND 25.03 NA 837.58 No
5/9/2008 25.53 25.54 0.01 837.08 **No
11/21/2012 27.51 27.68 0.17 835.05 **No
5/27/2014 ND 21.01 NA 841.60 Yes
5/27/2015 ND 23.82 NA 838.79 Yes
5/11/2016 ND 21.53 NA 841.08 Yes
5/23/2017 ND 25.50 NA 837.11 No
5/9/2018 ND 26.04 NA 836.57 No
5/28/2019 ND 18.36 NA 844.25 Yes
5/14/2020 ND 20.03 NA 842.58 Yes
5/5/2021 ND 17.15 NA 845.46 Yes
5/11/2022 ND 24.31 NA 838.30 No
5/9/2023 ND 22.05 NA 840.56 Yes
RW-37
Page 58 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
863.98 851.0 58.0 15/05/2002 31.00 32.10 1.10 832.67 **No
13/11/2002 32.87 33.24 0.37 831.01 **No
28/05/2003 ND 23.73 NA 840.25 No
17/11/2003 21.83 21.85 0.02 842.14 **No
12/05/2004 22.23 22.90 0.67 841.56 **No
10/11/2004 23.83 23.89 0.06 840.13 **No
27/05/2005 22.46 22.50 0.04 841.51 **No
15/11/2005 25.04 25.65 0.61 838.77 **No
22/05/2006 24.45 24.47 0.02 839.52 **No
22/11/2006 24.70 24.71 0.01 839.28 **No
7/05/2007 22.94 22.95 0.01 841.04 **No
13/11/2007 27.29 27.31 0.02 836.68 **No
9/05/2008 27.9 27.93 0.03 836.07 **No
16/11/2010 ND 24.90 NA 839.08 No
22/11/2011 28.69 28.78 0.09 835.26 **No
21/11/2012 29.23 29.27 0.04 834.74 **No
27/05/2014 ND 28.04 NA 835.94 No
5/11/2016 ND 23.42 NA 840.56 No
5/23/2017 ND 27.61 NA 836.37 No
5/9/2018 ND 28.01 NA 835.97 No
5/28/2019 ND 20.19 NA 843.79 No
5/14/2020 ND 21.96 NA 842.02 No
5/5/2021 ND 19.03 NA 844.95 No
5/11/2022 ND 26.35 NA 837.63 No
5/9/2023 ND 24.21 NA 839.77 No
RW-39
Page 59 of 60
Table 2
Summary of Groundwater Elevation Data
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina
Well
Top of Casing
Elevation
(ft. MSL)
Top of
Screened
Interval
(MSL)
Well Depth
(ft. BGS)
Date
Measured
Depth to
LNAPL
(ft. BTOC)
Depth to
Water
(ft. BTOC)
LNAPL
Thickness (ft.)
Well Screen
Submerged
Groundwater
Elevation
(ft. MSL)
862.71 837.7 45.0 5/15/2002 29.6 30.30 0.70 832.91 **No
11/13/2002 31.35 31.53 0.18 831.31 **No
5/28/2003 ND 22.00 NA 840.71 Yes
11/17/2003 ND 20.46 NA 842.25 Yes
5/12/2004 ND 21.83 NA 840.88 Yes
11/10/2004 22.29 22.30 0.01 840.42 **Yes
5/27/2005 ND 20.94 NA 841.77 Yes
11/15/2005 23.65 23.66 0.01 839.06 **Yes
5/22/2006 22.93 22.94 0.01 839.78 **Yes
11/22/2006 22.68 22.69 0.01 840.03 **Yes
5/7/2007 21.55 21.56 0.01 841.16 **Yes
11/13/2007 25.9 25.97 0.07 836.79 **No
5/9/2008 ND 27.01 NA 835.70 No
5/27/2014 ND 21.76 NA 840.95 Yes
5/27/2015 ND 24.52 NA 838.19 Yes
5/11/2016 ND 22.26 NA 840.45 Yes
5/23/2017 ND 26.23 NA 836.48 No
5/9/2018 ND 26.76 NA 835.95 No
5/28/2019 ND 19.11 NA 843.60 Yes
5/14/2020 ND 20.75 NA 841.96 Yes
5/5/2021 ND 17.92 NA 844.79 Yes
5/11/2022 ND 25.01 NA 837.70 No
5/9/2023 ND 22.81 NA 839.90 Yes
Notes:
MSL - Mean Sea Level NM - Not Measured
BGS - Below Grade Surface ND - None Detected
BTOC - Below Top of Casing NA - Not Applicable
ft. - Feet LNAPL - Light Non-Aqueous Phase Liquid ("Free Product")
Trace - Trace amount of LNAPL observed on probe
* - LNAPL was historically detected in the well (thickness not measured)
** Value represents Corrected Groundwater Elevation (Groundwater Elevation = TOC - DTW + (LNAPL Thickness x 0.72))
RW-41
Page 60 of 60
Table 3
Summary of Groundwater Analytical Results
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina

B
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n
z
e
n
e

T
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e

E
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b
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z
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e

T
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X
y
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n
e
s

M
T
B
E

N
a
p
h
t
h
a
l
e
n
e
1 600 600 500 20 6
6/11/2001 <1 <1 <1 <3 <5 NA
11/27/2001 <1 <1 <1 <1 <1 NA
5/16/2002 <1 <1 <1 <1 <1 <10
11/14/2002 <1 <1 <1 <1 <1 NA
5/22/2003 <1 <1 <1 <3 <5 <10
11/18/2003 <1 <1 <1 <3 <5 <5
5/13/2004 <1 <1 <1 <3 <5 <5
11/10/2004 <1 <1 <1 <3 <5 <5
6/1/2005 <1 <1 <1 <3 <5 <5
11/15/2005 <1 <1 <1 <3 <5 <5
5/23/2006 <1 <1 <1 <3 <5 <5
5/22/2007 <1 <1 <1 <3 <5 <5
5/28/2008 <1 <1 <1 <3 <5 <5
5/13/2009 <1 <1 <1 <3 <1 <1
5/11/2010 <1 <1 <1 <3 <1 <2
5/25/2011 <0.5 <0.5 <0.5 <1 <0.5 <2
5/2/2012 <1 <1 <1 <2 <1 <2
5/30/2013 1.2 <1 <1 <2 <1 <2
5/28/2014 <1 <1 <1 <2 <1 <2
5/27/2015 <1 <1 <1 <2 <1 <2
5/12/2016 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
5/23/2017 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
5/10/2018 <0.50 <0.50 <0.50 <0.50 <0.50 1.3
5/29/2019
5/15/2020 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
5/4/2021 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
5/11/2022 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
5/9/2023 <0.50 <0.50 <0.50 <1.5 <0.50 <2.0
6/11/2001 6.9 <1 4.6 58 220 NA
11/28/2001 66.0 85.4 95.9 528 30.2 114
5/29/2014 <10 <10 <10 <20 <10 <20
5/27/2015 1.2 <1 36.8 151 <1 157
5/11/2016 0.29 J <0.50 4.7 22 <0.50 25
5/23/2017
5/9/2018
5/29/2019 <0.50 <0.50 2.1 4.2 <0.50 11
5/15/2020 <0.50 <0.50 1.8 3.5 <0.50 7.9
5/4/2021 <0.50 <0.50 0.88 1.9 <0.50 5.1
5/12/2022 <0.50 H <0.50 H 0.77 H 2.4 H <0.50 H 4.4 H
5/9/2023 <0.50 <0.50 0.68 1.8 <0.50 5.7
MW-3
MW-2
NCAC 2L Groundwater Standard
Sample ID Sampling
Date
Volatile Organic Compounds
LNAPL
Could Not Open Lock On Vault
LNAPL
Page 1 of 13
Table 3
Summary of Groundwater Analytical Results
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina

B
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z
e
n
e

T
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u
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e

E
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y
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b
e
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z
e
n
e

T
o
t
a
l

X
y
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n
e
s

M
T
B
E

N
a
p
h
t
h
a
l
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n
e
1 600 600 500 20 6NCAC 2L Groundwater Standard
Sample ID Sampling
Date
Volatile Organic Compounds
6/19/2001 <1 <1 <1 <3 <5 NA
11/28/2001 <1 <1 1.1 14.7 47.6 NA
5/16/2002 2.5 <1 3.2 29.4 43 <10
11/14/2002 15.0 1.2 12.9 120 66.9 NA
5/22/2003 <1 <1 <1 <3 <5 <10
9/10/2003 <1 <1 <1 4.9 11 NA
11/18/2003 <1 <1 <1 37 <5 26
5/12/2004 2.2 <1 <1 36 2.7 J 35
11/10/2004 2.7 <1 <1 84 8.4 120
6/1/2005 1.5 <1 <1 75 <5 56
11/16/2005 1.1 <1 <1 91 6.0 85
5/23/2006 <1 <1 <1 6.8 <5 6.4
11/21/2006 <1 <1 <1 1.7 5.2 5.8
5/22/2007 <1 <1 <1 8.9 <5 44
11/13/2007 <1 <1 <1 <3 <5 8.4
5/28/2008 <1 <1 <1 <3 <5 <5
11/18/2008 <0.5 <1 <1 <3 <5 <1
5/13/2009 <1 <1 <1 <3 <1 1.9
11/16/2009 <1 <1 <1 <2 <1 <1
5/12/2010 <1 <1 <1 <3 <1 <2
11/18/2010 <1 <1 <1 <3 <1 <2
5/25/2011 <0.5 <0.5 <0.5 <1 <0.5 <2
11/18/2011 <1 <1 <1 <3 <1 <2
5/2/2012 <1 <1 <1 <2 <1 <2
11/20/2012 <1 <1 <1 <2 <1 <1
5/31/2013 <1 <1 <1 <2 <1 <2
5/28/2014 <1 <1 <1 <2 <1 6
5/27/2015 <1 <1 <1 <2 <1 <2
5/12/2016 <0.50 <0.50 <0.50 <0.50 <0.50 1.4 B
5/24/2017 <0.50 <0.50 <0.50 <0.50 <0.50 0.56
5/9/2018 <0.50 <0.50 <0.50 <0.50 <0.50 0.54
5/29/2019 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
5/15/2020 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
5/4/2021 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
5/12/2022 <0.50 H <0.50 H <0.50 H <0.50 H <0.50 H <0.50 H
5/9/2023 <0.50 <0.50 <0.50 <1.5 <0.50 <2.0
MW-4D
Page 2 of 13
Table 3
Summary of Groundwater Analytical Results
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina

B
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T
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E
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b
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e

T
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X
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s

M
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B
E

N
a
p
h
t
h
a
l
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e
1 600 600 500 20 6NCAC 2L Groundwater Standard
Sample ID Sampling
Date
Volatile Organic Compounds
6/11/2001 <1 <1 <1 <3 <5 NA
11/28/2001 <1 <1 <1 <1 <1 NA
5/15/2002 <1 <1 <1 <1 <1 <10
11/14/2002 <1 <1 <1 2.5 <1 NA
5/22/2003 <1 <1 <1 <3 <5 <10
11/18/2003 10.0 2.8 56 200 74 97
12/8/2003 2.7 1.1 20 200 93 53
5/12/2004 20.0 0.86 J 39 210 210 110
11/10/2004 79.0 3.8 100 320 440 340
2/9/2005 72.0 4.1 71 197 230 140
6/1/2005 76.0 2.5 81 380 1400 260
11/15/2005 86.0 <1 77 430 1800 250
5/23/2006 77.0 <4 71 500 1600 230
11/21/2006 6.0 <1 1.4 35.1 140 11
5/22/2007 69.0 <1 24 386 740 230
11/13/2007 41.0 <4 5.5 550 360 280
5/29/2008 33.0 <4 6.2 411 260 260
11/20/2008 69.0 <4 14 490 520 300
5/15/2009 121.0 1.7 13.2 342 752 251
5/12/2010 134.0 <2.5 8.5 338 346 229
11/18/2010 102.0 <5 5.3 326 234 309
5/25/2011 104.0 5.0 6.5 359 133 218
11/17/2011 1.4 1.9 <1 7.9 1.9 7.8
5/3/2012 88.3 <2 7.3 290 71.3 201
11/19/2012 122.0 2.7 9.2 344 65.3 277
5/30/2013 52.4 <2 2.2 94.3 25.4 77.5
5/28/2014 144.0 2.9 3.1 114 19 163
5/27/2015 68.3 <1 1.6 60.4 6.2 113
5/11/2016 98 2.2 J 4.2 140 6.0 230 B
5/23/2017 49 0.78 0.55 13 <0.50 44
5/9/2018 20 <0.50 <0.50 11 <0.50 23
5/29/2019 75 0.73 0.52 13 <0.50 66
5/15/2020 130 1.1 1.3 21 <0.50 190
5/4/2021 69 <0.50 <0.50 5.5 <0.50 85
5/12/2022 64 H <2.5 H <2.5 H 5.3 H <2.5 H 130 H
5/9/2023 5.6 <0.50 <0.50 <1.5 <0.50 8.8
MW-8
Page 3 of 13
Table 3
Summary of Groundwater Analytical Results
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina

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1 600 600 500 20 6NCAC 2L Groundwater Standard
Sample ID Sampling
Date
Volatile Organic Compounds
6/11/2001 <1 <1 <1 <3 <5 NA
11/27/2001 <1 <1 <1 <1 <1 NA
5/29/2014 <1 <1 <1 <2 <1 <2
5/28/2015 <1 <1 <1 <2 <1 <2
5/12/2016 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
5/24/2017 <0.50 <0.50 <0.50 <0.50 <0.50 0.42 J
5/10/2018 <0.50 <0.50 <0.50 <0.50 <0.50 0.54
5/29/2019 <0.50 <0.50 <0.50 <0.50 <0.50 1.1
5/15/2020 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
5/5/2021 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
5/11/2022 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
5/10/2023 <0.50 <0.50 <0.50 <1.5 <0.50 <2.0
6/11/2001 <1 <1 <1 <3 <5 NA
8/27/2001 NA NA NA NA NA <5
11/27/2001 <1 <1 <1 <1 <1 NA
5/29/2014 <1 <1 <1 <2 <1 <2
5/28/2015 <1 <1 <1 <2 <1 <2
5/12/2016 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
5/24/2017 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
5/10/2018 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
5/29/2019 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
5/15/2020 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
5/5/2021 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
5/11/2022 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
5/10/2023 <0.50 <0.50 <0.50 <1.5 <0.50 <2.0
MW-10
MW-9
Page 4 of 13
Table 3
Summary of Groundwater Analytical Results
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina

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1 600 600 500 20 6NCAC 2L Groundwater Standard
Sample ID Sampling
Date
Volatile Organic Compounds
6/15/2001 <1 <1 <1 <3 <5 NA
11/26/2001 <1 <1 <1 <1 <1 NA
5/29/2008 <1 <1 <1 30.5 <5 28
5/28/2014 <1 <1 <1 <2 <1 <2
5/27/2015 <1 <1 <1 <2 <1 <2
5/11/2016 <0.50 7.4 <0.50 <0.50 <0.50 0.41 J B
5/24/2017 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
5/10/2018 <0.50 <0.50 <0.50 <0.50 0.53 0.41 J
5/29/2019 0.40 J <0.50 <0.50 <0.50 1.0 1.3
5/15/2020 <0.50 0.60 <0.50 <0.50 <0.50 1.0
5/5/2021 1.3 <0.50 <0.50 <0.50 1.7 4.0
5/11/2022 <0.50 <0.50 <0.50 <0.50 0.55 1.9
5/9/2023 <0.50 <0.50 0.33 J <1.5 <0.50 1.6 J
6/14/2001 <1 <1 <1 <3 <5 NA
11/27/2001 <1 <1 <1 <1 <1 NA
11/16/2005 <1 <1 <1 <3 <5 <5
5/29/2014 <1 <1 <1 <2 <1 <2
5/28/2015 <1 <1 <1 <2 <1 <2
5/12/2016 <0.50 <0.50 <0.50 <0.50 0.24 J 0.50 B
5/24/2017 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
5/10/2018 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
5/29/2019 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
5/15/2020 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
5/5/2021 <0.50 <0.50 <0.50 <0.50 <0.50 0.57
5/11/2022 0.71 <0.50 <0.50 <0.50 <0.50 3.6
5/10/2023 <0.50 <0.50 <0.50 <1.5 <0.50 <2.0
MW-21
MW-16D
Page 5 of 13
Table 3
Summary of Groundwater Analytical Results
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina

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1 600 600 500 20 6NCAC 2L Groundwater Standard
Sample ID Sampling
Date
Volatile Organic Compounds
6/14/2001 <1 <1 <1 <3 <5 NA
11/26/2001 <1 <1 <1 <1 <1 NA
5/16/2002 <1 <1 <1 <1 <1 <10
11/14/2002 <1 <1 <1 <1 <1 NA
5/21/2003 <1 <1 <1 <3 <5 <10
11/18/2003 <1 <1 <1 <3 <5 <5
5/13/2004 <1 <1 <1 <3 <5 <5
11/10/2004 <1 <1 <1 <3 <5 <5
6/2/2005 <1 <1 <1 <3 <5 <5
11/16/2005 <1 <1 <1 <3 <5 <5
5/23/2006 <1 <1 <1 <3 <5 <5
11/21/2006 <1 <1 <1 <3 <5 <5
5/22/2007 15.0 <1 1.6 47.7 5.9 76
11/13/2007 21.0 <1 <1 62 11 110
5/29/2008 9.8 <1 <1 21.3 20 38
11/19/2008 21.0 <1 <1 117 16 100
5/15/2009 16.2 <2 <2 69.8 14.3 90.6
11/16/2009 4.0 <1 <1 27.6 5.4 16.4
5/12/2010 14.5 <1 <1 49.1 11.4 60.3
11/17/2010 17.4 <1 <1 10.9 18.5 51.7
5/25/2011 21.5 <0.5 <0.5 72.9 14.2 71.8
11/18/2011 14.8 <1 <1 39.6 12.3 53
5/3/2012 21.1 <1 <1 55.4 11.3 67
11/19/2012 18.2 <1 <1 20.8 11.5 54.2
5/30/2013 13.9 <1 <1 24.5 6.5 48.6
5/29/2014 9.9 <1 <1 32.5 1.5 31.3
5/28/2015 5.6 <1 <1 15.4 1.2 18.4
5/11/2016 10 <0.50 <0.50 26 0.62 33
5/24/2017 2.6 <0.50 <0.50 6.0 <0.50 8.3
5/10/2018 0.69 <0.50 <0.50 0.60 <0.50 1.9
5/29/2019 3.1 <0.50 <0.50 5.5 <0.50 12
5/15/2020 3.8 <0.50 <0.50 8.7 <0.50 19
5/5/2021 2.7 <0.50 <0.50 5.7 <0.50 15
5/11/2022 1.3 H <0.50 H <0.50 H 2.3 H <0.50 H 7.2 H
5/10/2023 1.8 <0.50 <0.50 2.4 <0.50 14.8
MW-22
Page 6 of 13
Table 3
Summary of Groundwater Analytical Results
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina

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1 600 600 500 20 6NCAC 2L Groundwater Standard
Sample ID Sampling
Date
Volatile Organic Compounds
6/19/2001 <1 <1 <1 <3 <5 NA
11/26/2001 <1 <1 <1 <1 <1 NA
5/16/2002 <1 <1 <1 <1 <1 <10
5/21/2003 <1 <1 <1 <3 9.1 <10
9/10/2003 8.9 1.2 4.3 76 4.0 J NA
11/18/2003 14.0 1.8 29 170 <5 86
5/13/2004 9.8 <1 7.5 120 <5 64
11/11/2004 5.5 <1 5.0 119 <5 75
6/1/2005 17.0 <1 11.0 260 20 170
11/16/2005 2.5 <1 4.0 134 <5 97
5/23/2006 12.0 <1 4.7 155 13 79
11/21/2006 <1 <1 2.7 110 <5 55
5/22/2007 9.5 <1 6.5 327 6.4 J 210
11/13/2007 <1 <1 4.3 419 <5 390
5/29/2008 4.5 <1 3.7 295 <5 240
11/19/2008 12.0 <1 5.1 440 <5 330
5/13/2009 10.5 <5 <5 244.8 <5 233
6/28/2010 <1 1.4 <1 34 <1 25.4
11/18/2010 <1 <1 <1 32.3 <1 37.1
5/26/2011 2.0 <1 <1 139 <1 112
11/18/2011 2.0 <1 <1 201 <1 166
5/2/2012 3.7 <1 <1 153 <1 146
11/20/2012 2.8 <1 <1 181 <1 181
5/30/2013 2.7 <1 <1 117 <1 119
5/29/2014 2.0 <1 <1 170 <1 167
5/28/2015 3.3 <1 <1 92.6 <1 215
5/12/2016 1.6 J <2.5 <2.5 130 <2.5 180
5/23/2017 <2.5 <2.5 <2.5 89 <2.5 150
5/10/2018 2.3 <0.50 <0.50 1.5 <0.50 87
5/29/2019 <0.50 <0.50 <0.50 7.0 <0.50 27
5/15/2020 0.71 <0.50 <0.50 67 <0.50 150
5/4/2021 0.66 <0.50 <0.50 47 <0.50 140
5/12/2022 <0.50 H <0.50 H <0.50 H 36 H <0.50 H 110 H
5/10/2023 <0.50 <0.50 <0.50 20 <0.50 90.6
MW-28
Page 7 of 13
Table 3
Summary of Groundwater Analytical Results
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina

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1 600 600 500 20 6NCAC 2L Groundwater Standard
Sample ID Sampling
Date
Volatile Organic Compounds
6/19/2001 <1 <1 <1 <3 <5 NA
8/24/2001 NA NA NA NA NA <5
11/28/2001 <1 <1 <1 <1 7.5 NA
5/16/2002 <1 <1 <1 <1 <1 <10
11/14/2002 <1 <1 <1 <1 39.2 NA
5/23/2003 <1 <1 <1 <3 <5 <10
9/10/2003 <1 <1 <1 <3 2.4 J NA
11/18/2003 <1 <1 <1 <3 <5 <5
5/13/2004 <1 1.5 <1 <3 <5 <5
11/11/2004 17.0 <1 5.3 28 210 29
6/1/2005 54.0 <1 3.0 116 300 80
11/16/2005 97.0 <1 3.0 257 270 220
5/23/2006 43.0 <1 <1 121 76 97
11/21/2006 43.0 <1 1.8 173 58 180
5/22/2007 18.0 <1 <1 59 16 57
11/13/2007 18.0 <1 <1 105 13 100
5/29/2008 <1 <1 <1 2.3 8.8 <5
11/20/2008 23.0 <1 1.4 167 6.6 150
5/14/2009 13.7 <2 <2 60.1 3.3 95.2
6/28/2010 <1 2.3 <1 11.2 <1 46.2
11/18/2010 4.4 <1 <1 2.9 <1 93.4
5/26/2011 3.0 <0.5 <0.5 3.9 <0.5 51
11/18/2011 2.7 <1 <1 11.6 <1 34.9
5/4/2012 3.3 <1 <1 14.4 <1 86.7
11/20/2012 4.4 <1 <1 21.1 <1 125
5/31/2013 4.2 <1 <1 22.3 <1 130
5/29/2014 6.2 <1 <1 16.5 <1 146
5/28/2015 3.4 <1 <1 7.5 <1 122
5/12/2016 6.4 <2.5 <2.5 3.3 <2.5 180
5/23/2017 3.2 <0.50 <0.50 3.5 <0.50 150
5/10/2018 1.0 <0.50 <0.50 90 <0.50 180
5/29/2019 2.0 <0.50 <0.50 0.54 <0.50 83
5/15/2020 2.6 <0.50 <0.50 0.68 <0.50 92
5/5/2021 1.7 <0.50 <0.50 1.0 <0.50 64
5/12/2022 1.1 H <0.50 H <0.50 H <0.50 H <0.50 H 100 H
5/10/2023 0.90 <0.50 <0.50 <1.5 <0.50 69.8
MW-29D
Page 8 of 13
Table 3
Summary of Groundwater Analytical Results
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina

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1 600 600 500 20 6NCAC 2L Groundwater Standard
Sample ID Sampling
Date
Volatile Organic Compounds
6/19/2001 <1 <1 <1 <3 <5 NA
11/26/2001 <1 <1 <1 <1 <1 NA
5/15/2002 <1 <1 <1 <1 <1 <14.3
11/14/2002 <1 <1 <1 <1 <1 NA
5/21/2003 <1 <1 <1 <3 <5 <10
11/18/2003 <1 <1 <1 <3 <5 <5
5/12/2004 <1 <1 <1 <3 <5 <5
11/11/2004 <1 <1 <1 <3 <5 6.1
6/2/2005 <1 <1 <1 <3 <5 <5
11/16/2005 <1 <1 <1 <3 <5 <5
5/23/2006 <1 <1 <1 <3 <5 <5
5/22/2007 <1 <1 <1 <3 <5 2.7 J
5/29/2008 <1 <1 <1 <3 <5 <5
5/15/2009 <1 <1 <1 <3 <1 <1
5/12/2010 <1 <1 <1 <3 <1 <2
5/26/2011 <0.5 <0.5 <0.5 <1 <0.5 <2
5/3/2012 <1 <1 <1 <2 <1 <2
5/30/2013 <1 <1 <1 <2 <1 <2
5/29/2014 <1 <1 <1 <2 <1 <2
5/27/2015 <1 <1 <1 <2 <1 <2
5/12/2016 <0.50 <0.50 <0.50 <0.50 <0.50 0.69
5/24/2017 <0.50 <0.50 <0.50 <0.50 <0.50 0.51
5/10/2018 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
5/29/2019 <0.50 <0.50 <0.50 <0.50 <0.50 0.54
5/15/2020 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
5/5/2021 <0.50 <0.50 <0.50 <0.50 <0.50 0.77
5/12/2022 <0.50 H <0.50 H <0.50 H <0.50 H <0.50 H <0.50 H
5/10/2023 Not Sampled - Could Not Access Well
MW-30
Page 9 of 13
Table 3
Summary of Groundwater Analytical Results
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina

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1 600 600 500 20 6NCAC 2L Groundwater Standard
Sample ID Sampling
Date
Volatile Organic Compounds
8/24/2001 <1 <1 <1 <2 <5 <5
11/28/2001 <1 <1 <1 <1 <1 NA
1/25/2006 4.0 <1 2.9 20.1 9.0 6.9
5/23/2006 3.5 <1 3.2 16.8 12 8.1
5/22/2007 7.5 <1 8.8 37 1.8 J 15
5/28/2008 20.0 1.3 19 118 14 66
5/14/2009 40.4 <1 40.1 219.6 11.3 120
5/12/2010 16.7 <1 17.8 129.9 1.1 58.9
5/26/2011 6.8 <0.5 1.8 65.6 <0.5 13.7
5/4/2012 19.5 <1 3.4 196 <1 73.5
5/30/2013 15.4 <1 7.5 213 <1 96.5
5/29/2014 18.9 <1 4.2 235 <1 140
5/28/2015 8.9 <1 3.5 144.5 <1 95.7
5/12/2016 3.8 <0.50 0.88 62 <0.50 40
5/24/2017 1.6 <0.50 <0.50 24 <0.50 20
5/10/2018 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
5/29/2019 <0.50 <0.50 <0.50 9.1 <0.50 3.5
5/15/2020 2.6 <0.50 <0.50 29 <0.50 60
5/5/2021 2.3 <0.50 <0.50 33 <0.50 86
5/11/2022 1.5 <0.50 <0.50 22 <0.50 86
5/10/2023 1.2 <0.50 <0.50 30 <0.50 116
MW-34
Page 10 of 13
Table 3
Summary of Groundwater Analytical Results
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina

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1 600 600 500 20 6NCAC 2L Groundwater Standard
Sample ID Sampling
Date
Volatile Organic Compounds
6/27/2001 <1 <1 <1 <2 18 <5
11/29/2001 <1 <1 <1 <1 20.5 NA
5/15/2002 2.2 <1 <1 33.1 21.2 <10
11/14/2002 12.6 1.2 6 147 23 NA
3/10/2003 17.0 4.5 19 230 <5 NA
5/23/2003 3.3 1.3 8.3 73 <5 <10
11/18/2003 <1 <1 <1 <3 <5 <5
12/8/2003 <1 <1 <1 <3 <5 <5
5/12/2004 0.54 J <1 <1 41 <5 25
11/10/2004 1.5 <1 <1 94 <5 100
6/1/2005 1.2 <1 <1 140 <5 160
11/15/2005 <1 <1 <1 107 <5 98
5/23/2006 <1 <1 <1 29.8 <5 33
11/22/2006 <1 <1 <1 42 <5 60
5/22/2007 <1 <1 <1 15.8 <5 65
11/13/2007 <1 <1 <1 48.4 <5 99
5/29/2008 <1 <1 <1 11.9 J <5 94
11/18/2008 <0.5 <1 <1 9.9 <5 140
5/15/2009 <1 <1 <1 1.7 <1 90.6
6/29/2010 <1 <1 <1 <3 <1 41
11/17/2010 <1 <1 <1 <3 <1 5.1
5/26/2011 <0.5 <0.5 <0.5 <1 <0.5 16.8
11/17/2011 <1 <1 <1 <2 <1 50.1
5/3/2012 <1 <1 <1 <2 <1 34.9
11/19/2012 <1 <1 <1 <2 <1 64.9
5/31/2013 <1 <1 <1 <2 <1 33.6
5/28/2014 <1 <1 <1 <2 <1 39.9
5/27/2015 <1 <1 <1 <2 <1 <2
5/11/2016 <0.50 <0.50 <0.50 <0.50 <0.50 25
5/24/2017 <0.50 <0.50 <0.50 <0.50 <0.50 15
5/10/2018 <0.50 <0.50 <0.50 <0.50 <0.50 5.3
5/29/2019 <0.50 <0.50 <0.50 <0.50 <0.50 3.3
5/15/2020 <0.50 <0.50 <0.50 <0.50 <0.50 12
5/5/2021 <0.50 <0.50 <0.50 <0.50 <0.50 3.7
5/11/2022 <0.50 <0.50 <0.50 <0.50 <0.50 1.1
5/9/2023 <0.50 <0.50 <0.50 <1.5 <0.50 5.8
MW-35
Page 11 of 13
Table 3
Summary of Groundwater Analytical Results
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina

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1 600 600 500 20 6NCAC 2L Groundwater Standard
Sample ID Sampling
Date
Volatile Organic Compounds
Blind Duplicate 1
MW-29D 5/23/2017 3.3 <0.50 <0.50 3.3 <0.50 160
Blind Duplicate 2
MW-22 5/24/2017 2.8 <0.50 <0.50 5.7 <0.50 7.7
Blind Duplicate 1
DUP050918
MW-4D
5/9/2018 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
Blind Duplicate 2
DUP051018
MW-28
5/10/2018 1.0 <0.50 <0.50 90 <0.50 190
DUP-1 5/29/2019 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
DUP-1
MW-3 5/15/2020 <0.50 <0.50 1.9 3.2 <0.50 8.9
DUP-1
MW-28 5/4/2021 0.63 <0.50 <0.50 50 <0.50 140
DUP-2
MW-10 5/5/2021 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
DUP-1
(MW-16D)5/11/2022 <0.50 H <0.50 H <0.50 H <0.50 H 0.65 H 2.2 H
DUP-2
(MW-03)5/12/2022 69 H <0.50 H <0.50 H 6.2 H <0.50 H 170 H
DUP-1
(MW-16D)5/9/2023 <0.50 <0.50 <0.50 <1.5 <0.50 <2.0
DUP-2
(MW-34)5/10/2023 1.4 <0.50 <0.50 31.3 <0.50 114
Equipment Blank 1 5/23/2017 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
Equipment Blank 2 5/24/2017 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
Equipment Blank 1
EB050918 5/9/2018 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
Equipment Blank 2
EB051018 5/10/2018 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
EB05292019 5/29/2019 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
EB-1 5/15/2020 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
Equipment Blank 5/4/2021 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
Equip Blank-2 5/5/2021 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
EB-1 5/11/2022 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
EB-2 5/12/2022 <0.50 H <0.50 H <0.50 H <0.50 H <0.50 H 1.8 H
EB-1 5/9/2023 <0.50 <0.50 <0.50 <1.5 <0.50 <2.0
EB-2 5/10/2023 <0.50 <0.50 <0.50 <1.5 <0.50 <2.0
QA/QC Samples
Page 12 of 13
Table 3
Summary of Groundwater Analytical Results
Freeze Road Site
Colonial Pipeline Company
Enochville, North Carolina

B
e
n
z
e
n
e

T
o
l
u
e
n
e

E
t
h
y
l
b
e
n
z
e
n
e

T
o
t
a
l

X
y
l
e
n
e
s

M
T
B
E

N
a
p
h
t
h
a
l
e
n
e
1 600 600 500 20 6NCAC 2L Groundwater Standard
Sample ID Sampling
Date
Volatile Organic Compounds
Trip Blank 5/24/2017 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
Trip Blank 5/10/2018 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
Trip Blank 5/29/2019 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
Trip Blank 5/15/2020 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
Trip Blank 5/4/2021 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
Trip Blank 5/11/2022 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
Trip Blank 5/10/2023 <0.50 <0.50 <0.50 <1.5 <0.50 <2.0
Notes:
Units reported in micrograms per liter (µg/L)
NCAC - North Carolina Administrative Code
QA/QC - Quality Assurance Quality Control
MTBE - Methyl tertiary butyl ether
LNAPL - Liqht Non-Aqueous Phase Liquid detected in well
NA - Not Analyzed / Not Applicable
J - Estimated concentration below laboratory reporting limit
B - Analyte detected in laboratory method blank
E - Quantitation of compound exceeded the calibration range
H - Out of holding time
< - Value not detected above practical quantitation limit
Bold text indicates the value meets or exceeds the 2L Standards
Groundwater samples analyzed for BTEX, MTBE, and Naphthalene via EPA Method 602 by SM 6200B.
Page 13 of 13

FIGURES
Sources: Esri, HERE, Garmin, Intermap, increment P Corp., GEBCO, USGS,
FAO, NPS, NRCAN, GeoBase, IGN, Kadaster NL, Ordnance Survey, Esri
Japan, METI, Esri China (Hong Kong), (c) OpenStreetMap contributors, and
the GIS User Community
CHECK BY: AS
DRAWN BY: CW
DATE: 5/25/23
SCALE: 1 in = 2,000 ft
CAD NO.: COL054-0314051
PRJ NO.: COL054-0314051
1
FIGURE
SITE LOCATION MAP
FREEZE ROAD SITE
COLONIAL PIPELINE COMPANY
ENOCHVILLE, NORTH CAROLINA
¯
0 1,000 2,000
Feet
SITE LOCATION

APPENDIX A
GROUNDWATER SAMPLING FIELD LOGS

APPENDIX B
LABORATORY ANALYTICAL REPORT

#=CL#
May 22, 2023
LIMS USE: FR - ANDREW STREET
LIMS OBJECT ID: 92667049
92667049
Project:
Pace Project No.:
RE:
Andrew Street
Apex Companies
5900-O Northwoods Business
Parkway
Charlotte, NC 28269
COL054-0314051-23004620
Dear Andrew Street:
Enclosed are the analytical results for sample(s) received by the laboratory on May 10, 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
A revised report is being submitted on 5/22/23 due to a compound list error.
If you have any questions concerning this report, please feel free to contact me.
Sincerely,
Angela Baioni
[e-mail]
Project Manager
[phone]
Enclosures
cc:Kaitlyn Nootens, Apex Companies
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 26
#=CP#
CERTIFICATIONS
Pace Project No.:
Project:
92667049
COL054-0314051-23004620
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 26
#=SS#
SAMPLE SUMMARY
Pace Project No.:
Project:
92667049
COL054-0314051-23004620
Lab ID Sample ID Matrix Date Collected Date Received
92667049001 MW-2 Water 05/09/23 12:05 05/10/23 16:32
92667049002 MW-3 Water 05/09/23 14:00 05/10/23 16:32
92667049003 MW-4D Water 05/09/23 14:45 05/10/23 16:32
92667049004 MW-8 Water 05/09/23 15:35 05/10/23 16:32
92667049005 MW-9 Water 05/10/23 09:25 05/10/23 16:32
92667049006 MW-10 Water 05/10/23 08:40 05/10/23 16:32
92667049007 MW-16D Water 05/09/23 10:10 05/10/23 16:32
92667049008 MW-21 Water 05/10/23 12:10 05/10/23 16:32
92667049009 MW-22 Water 05/10/23 11:30 05/10/23 16:32
92667049010 MW-28 Water 05/10/23 11:25 05/10/23 16:32
92667049011 MW-29D Water 05/10/23 10:00 05/10/23 16:32
92667049012 MW-34 Water 05/10/23 10:45 05/10/23 16:32
92667049013 MW-35 Water 05/10/23 11:00 05/10/23 16:32
92667049014 EB-1 Water 05/09/23 17:30 05/10/23 16:32
92667049015 EB-2 Water 05/10/23 12:40 05/10/23 16:32
92667049016 DUP-1 Water 05/09/23 00:00 05/10/23 16:32
92667049017 DUP-2 Water 05/10/23 00:00 05/10/23 16:32
92667049018 TRIP BLANK Water 05/10/23 00:00 05/10/23 16:32
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 26
#=SA#
SAMPLE ANALYTE COUNT
Pace Project No.:
Project:
92667049
COL054-0314051-23004620
Lab ID Sample ID Method
Analytes
Reported LaboratoryAnalysts
92667049001 MW-2 SM 6200B 10 PASI-CSAS
92667049002 MW-3 SM 6200B 10 PASI-CSAS
92667049003 MW-4D SM 6200B 10 PASI-CSAS
92667049004 MW-8 SM 6200B 10 PASI-CSAS
92667049005 MW-9 SM 6200B 10 PASI-CSAS
92667049006 MW-10 SM 6200B 10 PASI-CSAS
92667049007 MW-16D SM 6200B 10 PASI-CSAS
92667049008 MW-21 SM 6200B 10 PASI-CSAS
92667049009 MW-22 SM 6200B 10 PASI-CSAS
92667049010 MW-28 SM 6200B 10 PASI-CSAS
92667049011 MW-29D SM 6200B 10 PASI-CSAS
92667049012 MW-34 SM 6200B 10 PASI-CSAS
92667049013 MW-35 SM 6200B 10 PASI-CSAS
92667049014 EB-1 SM 6200B 10 PASI-CSAS
92667049015 EB-2 SM 6200B 10 PASI-CSAS
92667049016 DUP-1 SM 6200B 10 PASI-CSAS
92667049017 DUP-2 SM 6200B 10 PASI-CSAS
92667049018 TRIP BLANK SM 6200B 10 PASI-CSAS
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 4 of 26
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92667049
COL054-0314051-23004620
Sample:MW-2 Lab ID:92667049001 Collected:05/09/23 12:05 Received:05/10/23 16:32 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit
Report
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Benzene <0.50 ug/L 05/17/23 16:46 71-43-20.50 0.34 1
Ethylbenzene <0.50 ug/L 05/17/23 16:46 100-41-40.50 0.30 1
Methyl-tert-butyl ether <0.50 ug/L 05/17/23 16:46 1634-04-40.50 0.42 1
Naphthalene <2.0 ug/L 05/17/23 16:46 91-20-32.0 0.64 1
Toluene <0.50 ug/L 05/17/23 16:46 108-88-30.50 0.24 1
m&p-Xylene <1.0 ug/L 05/17/23 16:46 179601-23-11.0 0.71 1
o-Xylene <0.50 ug/L 05/17/23 16:46 95-47-60.50 0.34 1
Surrogates
1,2-Dichloroethane-d4 (S)112 %05/17/23 16:46 17060-07-070-130 1
4-Bromofluorobenzene (S)97 %05/17/23 16:46 460-00-470-130 1
Toluene-d8 (S)103 %05/17/23 16:46 2037-26-570-130 1
Sample:MW-3 Lab ID:92667049002 Collected:05/09/23 14:00 Received:05/10/23 16:32 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit
Report
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Benzene <0.50 ug/L 05/18/23 15:13 71-43-20.50 0.34 1
Ethylbenzene 0.68 ug/L 05/18/23 15:13 100-41-40.50 0.30 1
Methyl-tert-butyl ether <0.50 ug/L 05/18/23 15:13 1634-04-40.50 0.42 1
Naphthalene 5.7 ug/L 05/18/23 15:13 91-20-32.0 0.64 1
Toluene <0.50 ug/L 05/18/23 15:13 108-88-30.50 0.24 1
m&p-Xylene 1.8 ug/L 05/18/23 15:13 179601-23-11.0 0.71 1
o-Xylene <0.50 ug/L 05/18/23 15:13 95-47-60.50 0.34 1
Surrogates
1,2-Dichloroethane-d4 (S)88 %05/18/23 15:13 17060-07-070-130 1
4-Bromofluorobenzene (S)104 %05/18/23 15:13 460-00-470-130 1
Toluene-d8 (S)107 %05/18/23 15:13 2037-26-570-130 1
Sample:MW-4D Lab ID:92667049003 Collected:05/09/23 14:45 Received:05/10/23 16:32 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit
Report
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Benzene <0.50 ug/L 05/17/23 17:04 71-43-20.50 0.34 1
Ethylbenzene <0.50 ug/L 05/17/23 17:04 100-41-40.50 0.30 1
Methyl-tert-butyl ether <0.50 ug/L 05/17/23 17:04 1634-04-40.50 0.42 1
Naphthalene <2.0 ug/L 05/17/23 17:04 91-20-32.0 0.64 1
Toluene <0.50 ug/L 05/17/23 17:04 108-88-30.50 0.24 1
m&p-Xylene <1.0 ug/L 05/17/23 17:04 179601-23-11.0 0.71 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 05/22/2023 03:35 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 5 of 26
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92667049
COL054-0314051-23004620
Sample:MW-4D Lab ID:92667049003 Collected:05/09/23 14:45 Received:05/10/23 16:32 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit
Report
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
o-Xylene <0.50 ug/L 05/17/23 17:04 95-47-60.50 0.34 1
Surrogates
1,2-Dichloroethane-d4 (S)113 %05/17/23 17:04 17060-07-070-130 1
4-Bromofluorobenzene (S)96 %05/17/23 17:04 460-00-470-130 1
Toluene-d8 (S)103 %05/17/23 17:04 2037-26-570-130 1
Sample:MW-8 Lab ID:92667049004 Collected:05/09/23 15:35 Received:05/10/23 16:32 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit
Report
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Benzene 5.6 ug/L 05/17/23 17:22 71-43-20.50 0.34 1
Ethylbenzene <0.50 ug/L 05/17/23 17:22 100-41-40.50 0.30 1
Methyl-tert-butyl ether <0.50 ug/L 05/17/23 17:22 1634-04-40.50 0.42 1
Naphthalene 8.8 ug/L 05/17/23 17:22 91-20-32.0 0.64 1
Toluene <0.50 ug/L 05/17/23 17:22 108-88-30.50 0.24 1
m&p-Xylene <1.0 ug/L 05/17/23 17:22 179601-23-11.0 0.71 1
o-Xylene <0.50 ug/L 05/17/23 17:22 95-47-60.50 0.34 1
Surrogates
1,2-Dichloroethane-d4 (S)114 %05/17/23 17:22 17060-07-070-130 1
4-Bromofluorobenzene (S)96 %05/17/23 17:22 460-00-470-130 1
Toluene-d8 (S)102 %05/17/23 17:22 2037-26-570-130 1
Sample:MW-9 Lab ID:92667049005 Collected:05/10/23 09:25 Received:05/10/23 16:32 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit
Report
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Benzene <0.50 ug/L 05/17/23 22:41 71-43-20.50 0.34 1
Ethylbenzene <0.50 ug/L 05/17/23 22:41 100-41-40.50 0.30 1
Methyl-tert-butyl ether <0.50 ug/L 05/17/23 22:41 1634-04-40.50 0.42 1
Naphthalene <2.0 ug/L 05/17/23 22:41 91-20-32.0 0.64 1
Toluene <0.50 ug/L 05/17/23 22:41 108-88-30.50 0.24 1
m&p-Xylene <1.0 ug/L 05/17/23 22:41 179601-23-11.0 0.71 1
o-Xylene <0.50 ug/L 05/17/23 22:41 95-47-60.50 0.34 1
Surrogates
1,2-Dichloroethane-d4 (S)114 %05/17/23 22:41 17060-07-070-130 1
4-Bromofluorobenzene (S)96 %05/17/23 22:41 460-00-470-130 1
Toluene-d8 (S)102 %05/17/23 22:41 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: 05/22/2023 03:35 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 6 of 26
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92667049
COL054-0314051-23004620
Sample:MW-10 Lab ID:92667049006 Collected:05/10/23 08:40 Received:05/10/23 16:32 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit
Report
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Benzene <0.50 ug/L 05/17/23 22:59 71-43-20.50 0.34 1
Ethylbenzene <0.50 ug/L 05/17/23 22:59 100-41-40.50 0.30 1
Methyl-tert-butyl ether <0.50 ug/L 05/17/23 22:59 1634-04-40.50 0.42 1
Naphthalene <2.0 ug/L 05/17/23 22:59 91-20-32.0 0.64 1
Toluene <0.50 ug/L 05/17/23 22:59 108-88-30.50 0.24 1
m&p-Xylene <1.0 ug/L 05/17/23 22:59 179601-23-11.0 0.71 1
o-Xylene <0.50 ug/L 05/17/23 22:59 95-47-60.50 0.34 1
Surrogates
1,2-Dichloroethane-d4 (S)114 %05/17/23 22:59 17060-07-070-130 1
4-Bromofluorobenzene (S)97 %05/17/23 22:59 460-00-470-130 1
Toluene-d8 (S)102 %05/17/23 22:59 2037-26-570-130 1
Sample:MW-16D Lab ID:92667049007 Collected:05/09/23 10:10 Received:05/10/23 16:32 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit
Report
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Benzene <0.50 ug/L 05/18/23 15:26 71-43-20.50 0.34 1
Ethylbenzene 0.33J ug/L 05/18/23 15:26 100-41-40.50 0.30 1
Methyl-tert-butyl ether <0.50 ug/L 05/18/23 15:26 1634-04-40.50 0.42 1
Naphthalene 1.6J ug/L 05/18/23 15:26 91-20-32.0 0.64 1
Toluene <0.50 ug/L 05/18/23 15:26 108-88-30.50 0.24 1
m&p-Xylene <1.0 ug/L 05/18/23 15:26 179601-23-11.0 0.71 1
o-Xylene <0.50 ug/L 05/18/23 15:26 95-47-60.50 0.34 1
Surrogates
1,2-Dichloroethane-d4 (S)111 %05/18/23 15:26 17060-07-070-130 1
4-Bromofluorobenzene (S)97 %05/18/23 15:26 460-00-470-130 1
Toluene-d8 (S)102 %05/18/23 15:26 2037-26-570-130 1
Sample:MW-21 Lab ID:92667049008 Collected:05/10/23 12:10 Received:05/10/23 16:32 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit
Report
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Benzene <0.50 ug/L 05/17/23 23:17 71-43-20.50 0.34 1
Ethylbenzene <0.50 ug/L 05/17/23 23:17 100-41-40.50 0.30 1
Methyl-tert-butyl ether <0.50 ug/L 05/17/23 23:17 1634-04-40.50 0.42 1
Naphthalene <2.0 ug/L 05/17/23 23:17 91-20-32.0 0.64 1
Toluene <0.50 ug/L 05/17/23 23:17 108-88-30.50 0.24 1
m&p-Xylene <1.0 ug/L 05/17/23 23:17 179601-23-11.0 0.71 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 05/22/2023 03:35 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 7 of 26
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92667049
COL054-0314051-23004620
Sample:MW-21 Lab ID:92667049008 Collected:05/10/23 12:10 Received:05/10/23 16:32 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit
Report
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
o-Xylene <0.50 ug/L 05/17/23 23:17 95-47-60.50 0.34 1
Surrogates
1,2-Dichloroethane-d4 (S)112 %05/17/23 23:17 17060-07-070-130 1
4-Bromofluorobenzene (S)95 %05/17/23 23:17 460-00-470-130 1
Toluene-d8 (S)103 %05/17/23 23:17 2037-26-570-130 1
Sample:MW-22 Lab ID:92667049009 Collected:05/10/23 11:30 Received:05/10/23 16:32 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit
Report
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Benzene 1.8 ug/L 05/17/23 23:35 71-43-20.50 0.34 1
Ethylbenzene <0.50 ug/L 05/17/23 23:35 100-41-40.50 0.30 1
Methyl-tert-butyl ether <0.50 ug/L 05/17/23 23:35 1634-04-40.50 0.42 1
Naphthalene 14.8 ug/L 05/17/23 23:35 91-20-32.0 0.64 1
Toluene <0.50 ug/L 05/17/23 23:35 108-88-30.50 0.24 1
m&p-Xylene 1.1 ug/L 05/17/23 23:35 179601-23-11.0 0.71 1
o-Xylene 1.3 ug/L 05/17/23 23:35 95-47-60.50 0.34 1
Surrogates
1,2-Dichloroethane-d4 (S)115 %05/17/23 23:35 17060-07-070-130 1
4-Bromofluorobenzene (S)97 %05/17/23 23:35 460-00-470-130 1
Toluene-d8 (S)103 %05/17/23 23:35 2037-26-570-130 1
Sample:MW-28 Lab ID:92667049010 Collected:05/10/23 11:25 Received:05/10/23 16:32 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit
Report
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Benzene <0.50 ug/L 05/18/23 15:31 71-43-20.50 0.34 1
Ethylbenzene <0.50 ug/L 05/18/23 15:31 100-41-40.50 0.30 1
Methyl-tert-butyl ether <0.50 ug/L 05/18/23 15:31 1634-04-40.50 0.42 1
Naphthalene 90.6 ug/L 05/18/23 15:31 91-20-32.0 0.64 1
Toluene <0.50 ug/L 05/18/23 15:31 108-88-30.50 0.24 1
m&p-Xylene 4.4 ug/L 05/18/23 15:31 179601-23-11.0 0.71 1
o-Xylene 15.6 ug/L 05/18/23 15:31 95-47-60.50 0.34 1
Surrogates
1,2-Dichloroethane-d4 (S)84 %05/18/23 15:31 17060-07-070-130 1
4-Bromofluorobenzene (S)104 %05/18/23 15:31 460-00-470-130 1
Toluene-d8 (S)102 %05/18/23 15:31 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: 05/22/2023 03:35 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 8 of 26
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92667049
COL054-0314051-23004620
Sample:MW-29D Lab ID:92667049011 Collected:05/10/23 10:00 Received:05/10/23 16:32 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit
Report
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Benzene 0.90 ug/L 05/17/23 23:52 71-43-20.50 0.34 1
Ethylbenzene <0.50 ug/L 05/17/23 23:52 100-41-40.50 0.30 1
Methyl-tert-butyl ether <0.50 ug/L 05/17/23 23:52 1634-04-40.50 0.42 1
Naphthalene 69.8 ug/L 05/17/23 23:52 91-20-32.0 0.64 1
Toluene <0.50 ug/L 05/17/23 23:52 108-88-30.50 0.24 1
m&p-Xylene <1.0 ug/L 05/17/23 23:52 179601-23-11.0 0.71 1
o-Xylene <0.50 ug/L 05/17/23 23:52 95-47-60.50 0.34 1
Surrogates
1,2-Dichloroethane-d4 (S)115 %05/17/23 23:52 17060-07-070-130 1
4-Bromofluorobenzene (S)99 %05/17/23 23:52 460-00-470-130 1
Toluene-d8 (S)104 %05/17/23 23:52 2037-26-570-130 1
Sample:MW-34 Lab ID:92667049012 Collected:05/10/23 10:45 Received:05/10/23 16:32 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit
Report
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Benzene 1.2 ug/L 05/18/23 15:49 71-43-20.50 0.34 1
Ethylbenzene <0.50 ug/L 05/18/23 15:49 100-41-40.50 0.30 1
Methyl-tert-butyl ether <0.50 ug/L 05/18/23 15:49 1634-04-40.50 0.42 1
Naphthalene 116 ug/L 05/18/23 15:49 91-20-32.0 0.64 1
Toluene <0.50 ug/L 05/18/23 15:49 108-88-30.50 0.24 1
m&p-Xylene 8.4 ug/L 05/18/23 15:49 179601-23-11.0 0.71 1
o-Xylene 21.1 ug/L 05/18/23 15:49 95-47-60.50 0.34 1
Surrogates
1,2-Dichloroethane-d4 (S)85 %05/18/23 15:49 17060-07-070-130 1
4-Bromofluorobenzene (S)100 %05/18/23 15:49 460-00-470-130 1
Toluene-d8 (S)110 %05/18/23 15:49 2037-26-570-130 1
Sample:MW-35 Lab ID:92667049013 Collected:05/10/23 11:00 Received:05/10/23 16:32 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit
Report
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Benzene <0.50 ug/L 05/18/23 00:10 71-43-20.50 0.34 1
Ethylbenzene <0.50 ug/L 05/18/23 00:10 100-41-40.50 0.30 1
Methyl-tert-butyl ether <0.50 ug/L 05/18/23 00:10 1634-04-40.50 0.42 1
Naphthalene 5.8 ug/L 05/18/23 00:10 91-20-32.0 0.64 1
Toluene <0.50 ug/L 05/18/23 00:10 108-88-30.50 0.24 1
m&p-Xylene <1.0 ug/L 05/18/23 00:10 179601-23-11.0 0.71 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 05/22/2023 03:35 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 9 of 26
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92667049
COL054-0314051-23004620
Sample:MW-35 Lab ID:92667049013 Collected:05/10/23 11:00 Received:05/10/23 16:32 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit
Report
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
o-Xylene <0.50 ug/L 05/18/23 00:10 95-47-60.50 0.34 1
Surrogates
1,2-Dichloroethane-d4 (S)114 %05/18/23 00:10 17060-07-070-130 1
4-Bromofluorobenzene (S)96 %05/18/23 00:10 460-00-470-130 1
Toluene-d8 (S)102 %05/18/23 00:10 2037-26-570-130 1
Sample:EB-1 Lab ID:92667049014 Collected:05/09/23 17:30 Received:05/10/23 16:32 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit
Report
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Benzene <0.50 ug/L 05/17/23 21:48 71-43-20.50 0.34 1
Ethylbenzene <0.50 ug/L 05/17/23 21:48 100-41-40.50 0.30 1
Methyl-tert-butyl ether <0.50 ug/L 05/17/23 21:48 1634-04-40.50 0.42 1
Naphthalene <2.0 ug/L 05/17/23 21:48 91-20-32.0 0.64 1
Toluene <0.50 ug/L 05/17/23 21:48 108-88-30.50 0.24 1
m&p-Xylene <1.0 ug/L 05/17/23 21:48 179601-23-11.0 0.71 1
o-Xylene <0.50 ug/L 05/17/23 21:48 95-47-60.50 0.34 1
Surrogates
1,2-Dichloroethane-d4 (S)112 %05/17/23 21:48 17060-07-070-130 1
4-Bromofluorobenzene (S)97 %05/17/23 21:48 460-00-470-130 1
Toluene-d8 (S)102 %05/17/23 21:48 2037-26-570-130 1
Sample:EB-2 Lab ID:92667049015 Collected:05/10/23 12:40 Received:05/10/23 16:32 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit
Report
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Benzene <0.50 ug/L 05/17/23 22:05 71-43-20.50 0.34 1
Ethylbenzene <0.50 ug/L 05/17/23 22:05 100-41-40.50 0.30 1
Methyl-tert-butyl ether <0.50 ug/L 05/17/23 22:05 1634-04-40.50 0.42 1
Naphthalene <2.0 ug/L 05/17/23 22:05 91-20-32.0 0.64 1
Toluene <0.50 ug/L 05/17/23 22:05 108-88-30.50 0.24 1
m&p-Xylene <1.0 ug/L 05/17/23 22:05 179601-23-11.0 0.71 1
o-Xylene <0.50 ug/L 05/17/23 22:05 95-47-60.50 0.34 1
Surrogates
1,2-Dichloroethane-d4 (S)112 %05/17/23 22:05 17060-07-070-130 1
4-Bromofluorobenzene (S)96 %05/17/23 22:05 460-00-470-130 1
Toluene-d8 (S)102 %05/17/23 22:05 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: 05/22/2023 03:35 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 10 of 26
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92667049
COL054-0314051-23004620
Sample:DUP-1 Lab ID:92667049016 Collected:05/09/23 00:00 Received:05/10/23 16:32 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit
Report
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Benzene <0.50 ug/L 05/18/23 13:43 71-43-20.50 0.34 1
Ethylbenzene <0.50 ug/L 05/18/23 13:43 100-41-40.50 0.30 1
Methyl-tert-butyl ether <0.50 ug/L 05/18/23 13:43 1634-04-4 R10.50 0.42 1
Naphthalene <2.0 ug/L 05/18/23 13:43 91-20-32.0 0.64 1
Toluene <0.50 ug/L 05/18/23 13:43 108-88-3 R10.50 0.24 1
m&p-Xylene <1.0 ug/L 05/18/23 13:43 179601-23-11.0 0.71 1
o-Xylene <0.50 ug/L 05/18/23 13:43 95-47-60.50 0.34 1
Surrogates
1,2-Dichloroethane-d4 (S)89 %05/18/23 13:43 17060-07-070-130 1
4-Bromofluorobenzene (S)103 %05/18/23 13:43 460-00-470-130 1
Toluene-d8 (S)105 %05/18/23 13:43 2037-26-570-130 1
Sample:DUP-2 Lab ID:92667049017 Collected:05/10/23 00:00 Received:05/10/23 16:32 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit
Report
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Benzene 1.4 ug/L 05/18/23 14:14 71-43-20.50 0.34 1
Ethylbenzene <0.50 ug/L 05/18/23 14:14 100-41-40.50 0.30 1
Methyl-tert-butyl ether <0.50 ug/L 05/18/23 14:14 1634-04-40.50 0.42 1
Naphthalene 114 ug/L 05/18/23 14:14 91-20-3 M12.0 0.64 1
Toluene <0.50 ug/L 05/18/23 14:14 108-88-30.50 0.24 1
m&p-Xylene 9.0 ug/L 05/18/23 14:14 179601-23-11.0 0.71 1
o-Xylene 22.3 ug/L 05/18/23 14:14 95-47-60.50 0.34 1
Surrogates
1,2-Dichloroethane-d4 (S)115 %05/18/23 14:14 17060-07-070-130 1
4-Bromofluorobenzene (S)96 %05/18/23 14:14 460-00-470-130 1
Toluene-d8 (S)103 %05/18/23 14:14 2037-26-570-130 1
Sample:TRIP BLANK Lab ID:92667049018 Collected:05/10/23 00:00 Received:05/10/23 16:32 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit
Report
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Benzene <0.50 ug/L 05/17/23 22:23 71-43-20.50 0.34 1
Ethylbenzene <0.50 ug/L 05/17/23 22:23 100-41-40.50 0.30 1
Methyl-tert-butyl ether <0.50 ug/L 05/17/23 22:23 1634-04-40.50 0.42 1
Naphthalene <2.0 ug/L 05/17/23 22:23 91-20-32.0 0.64 1
Toluene <0.50 ug/L 05/17/23 22:23 108-88-30.50 0.24 1
m&p-Xylene <1.0 ug/L 05/17/23 22:23 179601-23-11.0 0.71 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 05/22/2023 03:35 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 11 of 26
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92667049
COL054-0314051-23004620
Sample:TRIP BLANK Lab ID:92667049018 Collected:05/10/23 00:00 Received:05/10/23 16:32 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit
Report
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
o-Xylene <0.50 ug/L 05/17/23 22:23 95-47-60.50 0.34 1
Surrogates
1,2-Dichloroethane-d4 (S)113 %05/17/23 22:23 17060-07-070-130 1
4-Bromofluorobenzene (S)96 %05/17/23 22:23 460-00-470-130 1
Toluene-d8 (S)102 %05/17/23 22:23 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: 05/22/2023 03:35 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 12 of 26
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92667049
COL054-0314051-23004620
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:
775001
SM 6200B
SM 6200B
6200B MSV
Laboratory:Pace Analytical Services - Charlotte
Associated Lab Samples:92667049001, 92667049003, 92667049004
Parameter Units
Blank
Result
Reporting
Limit Qualifiers
METHOD BLANK:4021669
Associated Lab Samples:92667049001, 92667049003, 92667049004
Matrix:Water
AnalyzedMDL
Benzene ug/L <0.50 0.50 05/17/23 10:500.34
Ethylbenzene ug/L <0.50 0.50 05/17/23 10:500.30
m&p-Xylene ug/L <1.0 1.0 05/17/23 10:500.71
Methyl-tert-butyl ether ug/L <0.50 0.50 05/17/23 10:500.42
Naphthalene ug/L <2.0 2.0 05/17/23 10:500.64
o-Xylene ug/L <0.50 0.50 05/17/23 10:500.34
Toluene ug/L <0.50 0.50 05/17/23 10:500.24
1,2-Dichloroethane-d4 (S)%108 70-130 05/17/23 10:50
4-Bromofluorobenzene (S)%97 70-130 05/17/23 10:50
Toluene-d8 (S)%102 70-130 05/17/23 10:50
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
4021670LABORATORY CONTROL SAMPLE:
LCSSpike
Benzene ug/L 22.520 112 60-140
Ethylbenzene ug/L 21.520 108 60-140
m&p-Xylene ug/L 42.440 106 60-140
Methyl-tert-butyl ether ug/L 20.920 105 60-140
Naphthalene ug/L 20.720 104 60-140
o-Xylene ug/L 21.020 105 60-140
Toluene ug/L 20.920 104 60-140
1,2-Dichloroethane-d4 (S)%107 70-130
4-Bromofluorobenzene (S)%100 70-130
Toluene-d8 (S)%101 70-130
Parameter Units
MS
Result
% Rec
Limits Qual% RecConc.
4021671MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
MSSpike
Result
92666177007
4021672
MSD
Result
MSD
% Rec RPD RPD
Max
MSDMS
Spike
Conc.
Benzene ug/L 20 136 60-140134 1 3020ND27.1 26.9
Ethylbenzene ug/L 20 126 60-140125 1 3020ND25.3 25.0
m&p-Xylene ug/L 40 123 60-140123 0 3040ND49.2 49.1
Methyl-tert-butyl ether ug/L 20 125 60-140124 0 3020ND25.0 24.9
Naphthalene ug/L 20 113 60-140117 3 3020ND22.6 23.3
o-Xylene ug/L 20 122 60-140121 1 3020ND24.4 24.1
Toluene ug/L 20 124 60-140123 1 3020ND24.8 24.5
1,2-Dichloroethane-d4 (S)%108 70-130108
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 05/22/2023 03:35 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 13 of 26
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92667049
COL054-0314051-23004620
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.
4021671MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
MSSpike
Result
92666177007
4021672
MSD
Result
MSD
% Rec RPD RPD
Max
MSDMS
Spike
Conc.
4-Bromofluorobenzene (S)%99 70-13099
Toluene-d8 (S)%99 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: 05/22/2023 03:35 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 14 of 26
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92667049
COL054-0314051-23004620
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:
775007
SM 6200B
SM 6200B
6200B MSV
Laboratory:Pace Analytical Services - Charlotte
Associated Lab Samples:92667049005, 92667049006, 92667049008, 92667049009, 92667049011, 92667049013, 92667049014,
92667049015, 92667049018
Parameter Units
Blank
Result
Reporting
Limit Qualifiers
METHOD BLANK:4021692
Associated Lab Samples:92667049005, 92667049006, 92667049008, 92667049009, 92667049011, 92667049013, 92667049014,
92667049015, 92667049018
Matrix:Water
AnalyzedMDL
Benzene ug/L <0.50 0.50 05/17/23 21:300.34
Ethylbenzene ug/L <0.50 0.50 05/17/23 21:300.30
m&p-Xylene ug/L <1.0 1.0 05/17/23 21:300.71
Methyl-tert-butyl ether ug/L <0.50 0.50 05/17/23 21:300.42
Naphthalene ug/L <2.0 2.0 05/17/23 21:300.64
o-Xylene ug/L <0.50 0.50 05/17/23 21:300.34
Toluene ug/L <0.50 0.50 05/17/23 21:300.24
1,2-Dichloroethane-d4 (S)%110 70-130 05/17/23 21:30
4-Bromofluorobenzene (S)%98 70-130 05/17/23 21:30
Toluene-d8 (S)%103 70-130 05/17/23 21:30
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
4021693LABORATORY CONTROL SAMPLE:
LCSSpike
Benzene ug/L 22.820 114 60-140
Ethylbenzene ug/L 21.320 106 60-140
m&p-Xylene ug/L 41.840 104 60-140
Methyl-tert-butyl ether ug/L 21.520 107 60-140
Naphthalene ug/L 20.720 103 60-140
o-Xylene ug/L 20.720 104 60-140
Toluene ug/L 20.820 104 60-140
1,2-Dichloroethane-d4 (S)%109 70-130
4-Bromofluorobenzene (S)%99 70-130
Toluene-d8 (S)%101 70-130
Parameter Units
MS
Result
% Rec
Limits Qual% RecConc.
4021694MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
MSSpike
Result
92667049005
4021695
MSD
Result
MSD
% Rec RPD RPD
Max
MSDMS
Spike
Conc.
Benzene ug/L 20 139 60-140134 4 3020<0.50 27.8 26.8
Ethylbenzene ug/L 20 132 60-140128 3 3020<0.50 26.3 25.6
m&p-Xylene ug/L 40 128 60-140124 3 3040<1.0 51.3 49.7
Methyl-tert-butyl ether ug/L 20 126 60-140119 5 3020<0.50 25.2 23.9
Naphthalene ug/L 20 115 60-140113 2 3020<2.0 23.0 22.7
o-Xylene ug/L 20 126 60-140123 3 3020<0.50 25.2 24.6
Toluene ug/L 20 129 60-140122 6 3020<0.50 25.7 24.3
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 05/22/2023 03:35 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 15 of 26
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92667049
COL054-0314051-23004620
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.
4021694MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
MSSpike
Result
92667049005
4021695
MSD
Result
MSD
% Rec RPD RPD
Max
MSDMS
Spike
Conc.
1,2-Dichloroethane-d4 (S)%109 70-130109
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: 05/22/2023 03:35 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 16 of 26
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92667049
COL054-0314051-23004620
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:
775332
SM 6200B
SM 6200B
6200B MSV
Laboratory:Pace Analytical Services - Charlotte
Associated Lab Samples:92667049002, 92667049010, 92667049012, 92667049016
Parameter Units
Blank
Result
Reporting
Limit Qualifiers
METHOD BLANK:4023369
Associated Lab Samples:92667049002, 92667049010, 92667049012, 92667049016
Matrix:Water
AnalyzedMDL
Benzene ug/L <0.50 0.50 05/18/23 13:250.34
Ethylbenzene ug/L <0.50 0.50 05/18/23 13:250.30
m&p-Xylene ug/L <1.0 1.0 05/18/23 13:250.71
Methyl-tert-butyl ether ug/L <0.50 0.50 05/18/23 13:250.42
Naphthalene ug/L <2.0 2.0 05/18/23 13:250.64
o-Xylene ug/L <0.50 0.50 05/18/23 13:250.34
Toluene ug/L <0.50 0.50 05/18/23 13:250.24
1,2-Dichloroethane-d4 (S)%84 70-130 05/18/23 13:25
4-Bromofluorobenzene (S)%85 70-130 05/18/23 13:25
Toluene-d8 (S)%103 70-130 05/18/23 13:25
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
4023370LABORATORY CONTROL SAMPLE:
LCSSpike
Benzene ug/L 24.620 123 60-140
Ethylbenzene ug/L 20.120 100 60-140
m&p-Xylene ug/L 40.540 101 60-140
Methyl-tert-butyl ether ug/L 17.420 87 60-140
Naphthalene ug/L 19.820 99 60-140
o-Xylene ug/L 25.420 127 60-140
Toluene ug/L 19.420 97 60-140
1,2-Dichloroethane-d4 (S)%101 70-130
4-Bromofluorobenzene (S)%125 70-130
Toluene-d8 (S)%100 70-130
Parameter Units
MS
Result
% Rec
Limits Qual% RecConc.
4023371MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
MSSpike
Result
92667049016
4023372
MSD
Result
MSD
% Rec RPD RPD
Max
MSDMS
Spike
Conc.
Benzene ug/L 20 104 60-14081 25 3020<0.50 20.9 16.2
Ethylbenzene ug/L 20 108 60-14083 26 3020<0.50 21.6 16.6
m&p-Xylene ug/L 40 106 60-14082 26 3040<1.0 42.4 32.7
Methyl-tert-butyl ether ug/L R1209960-14060 48 3020<0.50 19.8 12.1
Naphthalene ug/L 20 100 60-14083 18 3020<2.0 20.0 16.6
o-Xylene ug/L 20 106 60-14083 25 3020<0.50 21.3 16.5
Toluene ug/L R12010160-14067 41 3020<0.50 20.3 13.4
1,2-Dichloroethane-d4 (S)%104 70-130105
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.Date: 05/22/2023 03:35 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 17 of 26
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92667049
COL054-0314051-23004620
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.
4023371MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
MSSpike
Result
92667049016
4023372
MSD
Result
MSD
% Rec RPD RPD
Max
MSDMS
Spike
Conc.
4-Bromofluorobenzene (S)%103 70-130101
Toluene-d8 (S)%99 70-13096
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 05/22/2023 03:35 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 18 of 26
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92667049
COL054-0314051-23004620
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:
775382
SM 6200B
SM 6200B
6200B MSV
Laboratory:Pace Analytical Services - Charlotte
Associated Lab Samples:92667049007, 92667049017
Parameter Units
Blank
Result
Reporting
Limit Qualifiers
METHOD BLANK:4023606
Associated Lab Samples:92667049007, 92667049017
Matrix:Water
AnalyzedMDL
Benzene ug/L <0.50 0.50 05/18/23 13:560.34
Ethylbenzene ug/L <0.50 0.50 05/18/23 13:560.30
m&p-Xylene ug/L <1.0 1.0 05/18/23 13:560.71
Methyl-tert-butyl ether ug/L <0.50 0.50 05/18/23 13:560.42
Naphthalene ug/L <2.0 2.0 05/18/23 13:560.64
o-Xylene ug/L <0.50 0.50 05/18/23 13:560.34
Toluene ug/L <0.50 0.50 05/18/23 13:560.24
1,2-Dichloroethane-d4 (S)%113 70-130 05/18/23 13:56
4-Bromofluorobenzene (S)%96 70-130 05/18/23 13:56
Toluene-d8 (S)%102 70-130 05/18/23 13:56
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
4023607LABORATORY CONTROL SAMPLE:
LCSSpike
Benzene ug/L 22.820 114 60-140
Ethylbenzene ug/L 21.920 110 60-140
m&p-Xylene ug/L 43.540 109 60-140
Methyl-tert-butyl ether ug/L 21.320 106 60-140
Naphthalene ug/L 21.320 106 60-140
o-Xylene ug/L 21.520 108 60-140
Toluene ug/L 21.120 105 60-140
1,2-Dichloroethane-d4 (S)%110 70-130
4-Bromofluorobenzene (S)%98 70-130
Toluene-d8 (S)%100 70-130
Parameter Units
MS
Result
% Rec
Limits Qual% RecConc.
4023608MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
MSSpike
Result
92667049017
4023609
MSD
Result
MSD
% Rec RPD RPD
Max
MSDMS
Spike
Conc.
Benzene ug/L 20 122 60-140130 6 30201.4 25.9 27.4
Ethylbenzene ug/L 20 120 60-140127 6 3020<0.50 24.0 25.4
m&p-Xylene ug/L 40 120 60-140127 5 30409.0 56.8 59.8
Methyl-tert-butyl ether ug/L 20 109 60-140116 6 3020<0.50 21.8 23.1
Naphthalene ug/L M12010860-140158 7 3020114136146
o-Xylene ug/L 20 123 60-140129 3 302022.3 46.8 48.0
Toluene ug/L 20 113 60-140120 6 3020<0.50 22.6 24.0
1,2-Dichloroethane-d4 (S)%109 70-130109
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.Date: 05/22/2023 03:35 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 19 of 26
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92667049
COL054-0314051-23004620
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.
4023608MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
MSSpike
Result
92667049017
4023609
MSD
Result
MSD
% Rec RPD RPD
Max
MSDMS
Spike
Conc.
4-Bromofluorobenzene (S)%98 70-13097
Toluene-d8 (S)%99 70-13099
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 05/22/2023 03:35 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 20 of 26
#=QL#
QUALIFIERS
Pace Project No.:
Project:
92667049
COL054-0314051-23004620
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 EPAMethod 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
Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery.M1
RPD value was outside control limits.R1
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.Date: 05/22/2023 03:35 PM
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9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 21 of 26
#=CR#
QUALITY CONTROL DATA CROSS REFERENCE TABLE
Pace Project No.:
Project:
92667049
COL054-0314051-23004620
Lab ID Sample ID QC Batch Method QC Batch Analytical Method
Analytical
Batch
92667049001 775001MW-2 SM 6200B
92667049002 775332MW-3 SM 6200B
92667049003 775001MW-4D SM 6200B
92667049004 775001MW-8 SM 6200B
92667049005 775007MW-9 SM 6200B
92667049006 775007MW-10 SM 6200B
92667049007 775382MW-16D SM 6200B
92667049008 775007MW-21 SM 6200B
92667049009 775007MW-22 SM 6200B
92667049010 775332MW-28 SM 6200B
92667049011 775007MW-29D SM 6200B
92667049012 775332MW-34 SM 6200B
92667049013 775007MW-35 SM 6200B
92667049014 775007EB-1 SM 6200B
92667049015 775007EB-2 SM 6200B
92667049016 775332DUP-1 SM 6200B
92667049017 775382DUP-2 SM 6200B
92667049018 775007TRIP BLANK SM 6200B
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 05/22/2023 03:35 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 22 of 26
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