WS-5153_17710_CA_RMR_20230303

GROUNDWATER MONITORING REPORT

FORMER THRIFTY STOP #1
3117 MICHAEL ROAD
TYRO, DAVIDSON COUNTY, NORTH CAROLINA
INCIDENT NO. 17710

Prepared For:

Mr. Mohamed Elmahdy
1430 Thornhill Lane
Winston-Salem, North Carolina 27106

Prepared By:

Progress Environmental Group, Inc.
120 Fayette Street
Winston-Salem, North Carolina 27101

Progress Project No. MOH150N.WM

March 3, 2023

March 3, 2023

Mr. Doug Whitmire
North Carolina Department of Environmental Quality
Division of Waste Management, UST Section
Winston-Salem Regional Office
450 West Hanes Mill Road, Suite 300
Winston-Salem, North Carolina 27105

Subject: Groundwater Monitoring Report
Former Thrifty Stop #1
3117 Michael Road
Tyro, Davidson County, North Carolina
Incident No. 17710
Progress Project No. MOH150N.WM

Dear Mr. Whitmire:

On behalf of Mr. Mohamed Elmahdy, Progress Environmental Group, Inc. (Progress) is
submitting this Groundwater Monitoring Report for the above-referenced site. Included in
this report is a description of the field activities, the results obtained, and the conclusions
and recommendations.

This Groundwater Monitoring Report has been prepared in general accordance with the
Underground Storage Tank Section guidelines presented in the NCDENR Guidelines for
Assessment and Corrective Action for UST Releases, dated January 19, 2021.

We appreciate your consideration and cooperation in the submission of this report. If you
have any questions concerning this report please feel free to contact us at [phone].

Sincerely,

PROGRESS ENVIRONMENTAL GROUP, INC.

Joseph S. Lawson, III Jeffrey A. Ballsieper, L.G.
Director of Ecological Services Director of Environmental Services
Licensed NC 1653

cc: Mr. Mohamed Elmahdy

March 3, 2023

Mr. Mohamed Elmahdy
1430 Thornhill Lane
Winston-Salem, North Carolina 27106

Subject: Groundwater Monitoring Report
Former Thrifty Stop #1
3117 Michael Road
Tyro, Davidson County, North Carolina
Incident No. 17710
Progress Project No. MOH150N.WM

Dear Mr. Elmahdy:

Progress Environmental Group, Inc (Progress) is pleased to submit this Groundwater
Monitoring Report for the above-referenced site. The objective of the investigation was to
conduct groundwater sampling to assess the groundwater quality beneath the site.

This Groundwater Monitoring Report is intended for the use of Mr. Mohamed Elmahdy, only.
The contents should not be relied upon by other parties without the express written consent
of Progress. The findings are relevant to the dates of our site work and should not be relied
upon to represent site conditions on other dates.

Progress appreciates the opportunity to provide our environmental services. If you have
any questions or if we may be of further service, please contact the undersigned at (336)
722-9999.

Sincerely,

PROGRESS ENVIRONMENTAL GROUP, INC.

Joseph S. Lawson, III Jeffrey A. Ballsieper, L.G.
Director of Ecological Services Director of Environmental Services

Attachment: Groundwater Monitoring Report and Appendices

Groundwater Monitoring Report March 3, 2023
Former Thrifty Stop #1, Tyro, North Carolina Progress Project No. MOH150N.WM

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Groundwater Monitoring Report

A. SITE IDENTIFICATION

Date of Report: March 3, 2023
UST Incident Number (if known): 17710
Site Name: Former Thrifty Stop #1
Site Location: 3117 Michael Road
Nearest City/Town: Tyro County: Davidson
UST Owner: Mr. Mohamed Elmahdy
Address: 1430 Thornhill Lane, Winston-Salem, North Carolina 27106 Phone: [phone]
UST Operator: Mohammed Elmahdy
Address: 3117 Michael Road, Lexington, North Carolina 27295 Phone: [phone]
Property Owner: Mr. Mohamed Elmahdy
Address: 1430 Thornhill Lane, Winston-Salem, North Carolina 27106 Phone: [phone]
Property Occupant: Thrifty Stop #1
Address: 3117 Michael Road, Lexington, North Carolina 27295 Phone: [phone]

Consultant/Contractor: Progress Environmental Group, Inc.
Address: 120 Fayette Street, Winston-Salem, NC 27101 Phone: [phone]
Attention: Mr. Jeffrey A. Ballsieper, L.G.
Release Information
Date Discovered: January 24, 1994
Latitude: N 35 degrees 48 minutes 26 seconds Longitude: W 80 degrees 22 minutes 26 seconds
Estimated Quantity of Release: Unknown
Cause of Release: Unknown
Source of Release (e.g., Piping/UST): Piping or UST
Sizes and contents of UST system(s) from which the release occurred): Two 6,000-gallon gasoline USTs,
one 4,000-gallon gasoline UST, and one 550-gallon gasoline UST (Table B-1).

Risk Classification: High Risk due to the presence of water supply wells within 1,500 feet of the source area
of the release.

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B. EXECUTIVE SUMMARY

Thrifty Stop #1 is located at the intersection of Highway 150 and Michael Road in Tyro,
Davidson County, North Carolina (Figure 1). According to the UST Closure Report
prepared by others, four underground storage tanks (USTs) containing gasoline were
removed from the site in 1994 and replaced by the USTs that are currently located on the
subject site. Two of the former USTs were located in the same tank pit as the existing
gasoline USTs. The remaining two former USTs were located in separate tank pits. A
formal UST Closure Report was not completed at the time the USTs were removed. A
post facto UST Closure Report was prepared in 1997 and consisted of advancing five soil
borings (Pb-1 through Pb-5) in the vicinity of the former USTs. Laboratory analysis of soil
samples collected from these boring indicated the presence of petroleum related
compounds in the soil at concentrations exceeding the North Carolina Department of
Environment and Natural Resources (NCDENR) Action Levels. Minimal information
concerning the UST Closure was available in the incident file at the Winston-Salem
Regional Office of the NCDENR.
A Corrective Action Plan (CAP) for the site was submitted by Apex in March 2003. The
approved CAP recommended the performance of mobile multi-phased extraction (MMPE)
from three recovery wells installed within the groundwater contamination present beneath
the site.

On May 8, 2003, Apex supervised the installation of three four-inch recovery wells on the
site to assist in the remediation of the free-phase and dissolved-phase groundwater
contamination beneath the site.

Apex and Progress have conducted numerous mobile, multi-phase extraction (MMPE)
events previously at the subject site. The work was pre-authorized for Trust Fund
reimbursement by the Winston-Salem Regional Office-UST Section of the North Carolina
Department of Environmental Quality (NCDEQ). Based on the significant decrease in the
dissolved-phase concentrations of petroleum-related compounds in the groundwater to
relatively low levels, Progress recommended natural attenuation monitoring at the site.

Progress was on site on January 18, 2023 to collect groundwater samples from the on-site
monitoring wells MW-1 through MW-7 and recovery wells RW-1 through RW-3. Prior to
sampling, the wells were purged of approximately three casing volumes of water (or bailed
dry and sampled). The groundwater samples were decanted into laboratory-supplied
bottles and placed into a cooler packed with ice. The cooler was delivered under chain-of-
custody to Pace Analytical Laboratories, Inc. (PACE) in Kernersville, North Carolina for
testing. PACE analyzed the groundwater samples for volatile organic compounds (VOCs) by
Standard Method 6200B, including oxygenates. A summary of the groundwater sample
analytical results is included in Table B-4.

Laboratory analysis of the groundwater samples collected from monitoring and recovery
wells MW-1, MW-6, MW-7, and RW-1 and RW-3 detected targeted petroleum
hydrocarbons in excess of their respective NC2LGWQS. The groundwater concentrations
generally indicated increases in the groundwater samples collected from each of the
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monitoring/recovery wells since the most recent sampling event. In addition, the
targeted petroleum concentrations have significantly decreased in each of the monitoring
wells since the implementation of remedial activities at the site.

Based on the results of the groundwater sampling event, Progress made the following
conclusions:

 The site continues to meet the criteria to be classified as High Risk with five active
water supply wells being identified within 1000 feet of the source area.
 Progress collected groundwater samples from the on-site monitoring wells MW-1
through MW-7 and recovery wells RW-1 through RW-3 on January 18, 2023.
 Laboratory analysis of the groundwater samples collected from three monitoring
wells and two recovery wells detected at least one targeted petroleum
hydrocarbon compound in excess of its respective NC2LGWQS.
 The groundwater concentrations generally indicated slight increases in the
groundwater samples collected from each of the monitoring/recovery wells since
the most recent sampling event.
 None of the detected compounds exceeds its applicable GCL.

Based on the remaining concentrations in select groundwater samples exceeding their
respective NC2LGWQS, Progress recommended the following:

 The continued monitoring of the groundwater at the site.
 Initiate discussions to re-implement remedial actions at the site.

Progress will not complete additional activities at the site unless pre-approved by the
NCDEQ.

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TABLE OF CONTENTS

A. SITE IDENTIFICATION ..................................................................................... 1
B. EXECUTIVE SUMMARY ...................................................................................... 2
C. TABLE OF CONTENTS ........................................................................................ 4
D. SITE HISTORY AND CHARACTERIZATION ....................................................... 5
E. PRESENTATION OF CURRENT SITE ASSESSMENT
INFORMATION/COMPARISON TO HISTORICAL ASSESSMENT INFORMATION .... 8
F. FREE PRODUCT REMOVAL .............................................................................. 11
G. MONITORED NATURAL ATTENUATION/NATURAL SOURCE ZONE DEPLETION
STATUS ............................................................................................................... 11
H. CONCLUSIONS ................................................................................................ 12
I. STATEMENTS AND CERTIFICATION ............................................................... 13

FIGURES
Figure 1. Topographic Site Map
Figure 2. Site Map
Figure 3. Groundwater Analytical Results Map
Figure 4. Benzene Isopleth Map
Figure 5. Total BTEX Isopleth Map
Figure 6. MTBE Isopleth Map
Figure 7. Groundwater Contour Map

TABLES
Table B-1 – Site History, UST/AST System Information
Table B-2 – Site History, UST Owner/Operator Information
Table B-4 -- Summary of Detected Groundwater Analytical Results
Table B-7 -- Well Construction Information

APPENDIX
Groundwater Sampling Sheets
Returned Water-Supply Well Questionnaires
Laboratory Data Sheets and Chain-of-Custody Records
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C. SITE HISTORY AND CHARACTERIZATION

Thrifty Stop #1 is located at the intersection of Highway 150 and Michael Road in Tyro,
Davidson County, North Carolina (Figure 1). According to the UST Closure Report prepared
by others, four underground storage tanks (USTs) containing gasoline were removed from
the site in 1994 and replaced by the USTs that are currently located on the subject site.
Two of the former USTs were located in the same tank pit as the existing gasoline USTs.
The remaining two former USTs were located in separate tank pits. A formal UST Closure
Report was not completed at the time the USTs were removed. A post facto UST Closure
Report was prepared in 1997 and consisted of advancing five soil borings (Pb-1 through
Pb-5) in the vicinity of the former USTs. Laboratory analysis of soil samples collected from
these boring indicated the presence of petroleum related compounds in the soil at
concentrations exceeding the North Carolina Department of Environment and Natural
Resources (NCDENR) Action Levels. Minimal information concerning the UST Closure was
available in the incident file at the Winston-Salem Regional Office of the NCDENR.
On March 19, 2002, Law Engineering and Environmental Services, Inc. (LAW) advanced
two soil borings on the site. One soil boring was advanced in the vicinity of Pb-2 and the
other soil boring was advanced in the vicinity of Pb-5. Subsurface soil samples previously
collected in borings Pb-2 and Pb-5 by others indicated the presence of total petroleum
hydrocarbons in the gasoline range at concentrations which exceeded the NCDENR TPH
Action Level of 10 mg/Kg. The soil borings were advanced using a truck-mounted
Geoprobe rig, which utilizes a hydraulic, direct-push soil-sampling system. The soil
borings were advanced to a depth of sixteen feet below ground surface (bgs). Subsurface
soil samples were collected from a depth of five and ten feet bgs from soil boring B-1 and
from a depth of ten feet bgs in soil boring B-2. No subsurface soil sample was collected
from a depth of five feet bgs in soil boring B-2 because soil located at this depth appeared
to be comprised of fill material.
The subsurface soil samples were analyzed for volatile organic compounds (VOCs) using
United States Environmental Protection Agency (USEPA) Method 8260/5035, and volatile
petroleum hydrocarbons (VPH) using the Massachusetts Department of Environmental
Protection (MADEP) Method.
The subsurface soil analytical results were compared to the Soil-to-Groundwater Maximum
Soil Contaminant Concentrations (MSCCs) as presented in the NCDENR UST Section
Guidelines for the Assessment and Corrective Action dated April, 2001.
The laboratory detected several volatile constituents in the subsurface soil samples
collected from soil borings B-1 and B-2. A total of 11 VOCs were detected in boring B-1 at
depths of five and ten feet bgs at concentrations exceeding their respective Soil-to-
Groundwater MSCCs. The laboratory also detected C5-C8 aliphatics and C9-C10 aromatics
in boring B-1 at depths of five and ten feet bgs at concentrations which exceeded their
respective soil-to-groundwater MSCCs. C9-C12 Aliphatics were also detected in both
samples collected from boring B-1, but at concentrations, which did not exceed the soil-to-
groundwater MSCC.
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A total of 10 VOCs were detected in the 10-foot subsurface soil sample from soil boring B-2
at concentrations exceeding their respective Soil-to-Groundwater MSCCs. C5-C8 Aliphatics
were detected in the sample collected from ten feet bgs in soil boring B-2 at a
concentration, which exceeded the Soil-to-Groundwater MSCC. C9-C12 aliphatics were also
detected in the ten-foot soil sample from boring B-2 but at a concentration, which did not
exceed the Soil-to-Groundwater MSCC.
LAW advanced both soil borings to intersect the water table, so that the groundwater
samples would be representative of conditions beneath the previously identified areas of
soil contamination. LAW collected the groundwater samples from temporary monitoring
wells consisting of steel drilling rods with a stainless steel screen at the bottom that can
be exposed by pulling the drilling tools back to the surface. The water table was
encountered at approximately 12 feet bgs in each of the borings (LAW 2002).
Groundwater samples were analyzed for purgeable aromatic compounds according to EPA
Method 602, modified to include total xylenes, methyl tert-butyl ether (MTBE), and di-
isopropyl ether (IPE), and for VPH according to the MADEP Methods.
The groundwater analytical results were evaluated using the North Carolina Administrative
Code Title 15A NDCENR, Subchapter 2L, Section .0200, Classifications and Water Quality
Standards (NC2LGWQS). In addition, the Gross Contamination Levels (GCLs) as
presented in the 2001 NCDENR Guidelines were used to evaluate whether or not further
investigation is necessary at the site.
In the groundwater sample from boring B-1 the laboratory detected benzene,
ethylbenzene, toluene, total xylenes, IPE and MTBE at concentrations, which exceeded
their respective NC2LGWQS. The concentration of benzene in boring B-1 exceeded its
GCL of 5,000 ug/L. In the groundwater sample from boring B-2 the laboratory detected
benzene and ethylbenzene at concentrations which exceeded their respective NC2LGWQS.
Additionally, total xylenes, toluene, MTBE, and IPE were also detected in the sample from
B-2 but at concentrations which do not exceed their respective NC2LGWQS. None of the
contaminants detected in the sample from boring B-2 were detected at concentrations
which exceeded their respective GCLs (LAW 2002).
Because the NC2LGWQS for benzene and ethylbenzene were exceeded by at least ten
times, it was required that a Phase II Limited Site Assessment (LSA) be performed at the
site. LAW performed a Phase II LSA which required the installation of five permanent
wells at the site: four Type II shallow wells and one deep Type III well at the suspected
source of contamination. LAW returned to the site during the week of June 10, 2002.
Monitoring well MW-1 was installed in close proximity to boring B-1 that was completed
as part of the Phase I LSA. The locations of the remaining monitoring wells are shown on
Figure 2. The wells were installed to depths that ranged from 16 feet bgs to 18.5 feet
bgs. LAW also installed a Type III monitoring well (MW-5). The outer casing for the
deep well was installed to approximately 32 feet bgs. The inner casing was installed to a
depth of 42 feet bgs.
The groundwater samples were analyzed for volatile organic compounds (VOCs)
according to USEPA Method 8260, and for VPH according to the MADEP Method.
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Additionally, the groundwater samples from monitoring wells MW-2 and MW-4 were
analyzed for semi-volatile organic compounds (SVOCs) according to USEPA Method 8270
and for extractable petroleum hydrocarbons (EPH) according to the MADEP Method.
The laboratory did not detect VOCs or VPHs in the groundwater sample collected from the
deep well MW-5. The laboratory also did not detect SVOCs in the groundwater samples
from wells MW-2 and MW-4. The laboratory detected several petroleum-related
compounds in the groundwater sample collected from well MW-1 at concentrations which
exceeded their respective NC2LGWQS. Only benzene was detected at a concentration in
excess of its gross contaminant level. The groundwater sample from well MW-4 exhibited
a benzene concentration of 4.6 ug/L, which exceeds its NC2LGWQS. Both the samples
from wells MW-3 and MW-4 exhibited detectable concentrations of p-isopropyltoluene.
The NCDENR has not established a NC2LGWQS for p-isopropyltoluene, therefore the
laboratory’s detection limit is considered the interim standard. C5-C8 Aliphatics and C9-
C32 Aromatics were detected in wells MW-2 and MW-4 at concentrations in excess of
their respective NC2LGWQS. C9-C32 Aromatics were also detected in well MW-3 in
excess of their respective NC2LGWQS. Additional petroleum-related compounds were
identified in the samples collected from wells MW-2, MW-3, and MW-4 but at
concentrations below their respective NC2LGWQS.
On November 22, 2002, Apex performed an Aggressive Fluid Vapor Recovery event pre-
authorized for trust fund reimbursement by the Winston-Salem Regional Office-UST Section
of NCDENR. Apex extracted fluids and vapors from a monitoring well located on the Thrifty
Stop site that was installed by others as part of an investigation on an adjacent property.
The event was conducted over an 8-hour period. During the course of the event, several
parameters were gauged to measure the effectiveness of the event. Parameters measured
included vacuum of the suction lines, the velocity of the exhaust, the temperature of the
exhaust, the relative humidity of the exhaust, the percent water vapor in the exhaust and
the presence of the organic vapors in the exhaust using a photoionization detector. Over
the period of the event, approximately 670 gallons of groundwater were removed.

A Corrective Action Plan (CAP) for the site was submitted by Apex in March 2003. The
approved CAP recommended the performance of mobile multi-phased extraction (MMPE)
from three recovery wells installed within the groundwater contamination present beneath
the site.

On May 8, 2003 Apex supervised the installation of three four-inch recovery wells on the
site to assist in the remediation of the free-phase and dissolved-phase groundwater
contamination beneath the site.

Apex and Progress have conducted numerous mobile, multi-phase extraction (MMPE)
events previously at the subject site. The work was pre-authorized for Trust Fund
reimbursement by the Winston-Salem Regional Office-UST Section of the North Carolina
Department of Environmental Quality (NCDEQ). Based on the significant decrease in the
dissolved-phase concentrations of petroleum-related compounds in the groundwater to
relatively low levels, Progress recommended natural attenuation monitoring at the site.

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Information regarding the on-site USTs is presented below:
Table B-1 Site History, UST/AST System Information
Tank No. Installation Date Capacity (gallons) Removal Date Previous Contents
1 1966 6,000 1994 Gasoline
2 1966 6,000 1994 Gasoline 3 1966 4,000 1994 Gasoline
4 1966 550 1994 Gasoline 5 1994 1,000 Active Diesel/Kerosene
6 1994 1,000 Active Diesel/Kerosene 7 1994 8,000 Active Gasoline
8 1994 8,000 Active Gasoline
Table 2 Site History, UST Owner/Operator Information
Owner’s Name Address Phone Number Dates of Ownership
Mr. Mohamed Elmahdy 1430 Thornhill Lane,
Winston-Salem, NC 27106 [phone] 2020 - Present

D. PRESENTATION OF CURRENT SITE ASSESSMENT
INFORMATION/COMPARISON TO HISTORICAL ASSESSMENT
INFORMATION

Regional Geology and Hydrogeology
According to the Geologic Map of North Carolina, the subject site is located in the Inner
Charlotte Belt of the Piedmont Physiographic Province of North Carolina, in an area
underlain by rocks identified as granitic. In the Piedmont Physiographic Province,
groundwater generally occurs under water-table conditions and is stored in the pore space
between individual grains of residual soil and in the fractures within the underlying parent
rock. Recharge to the water table is primarily by precipitation infiltrating the upper soil and
percolating downward, under the influence of gravity, to the groundwater table. Typically,
the water table is not a level surface, but a subdued reflection of the land surface.
However, the depth to the water table is not constant, and depends on many factors which
include the amount of rainfall, the permeability of the soil, and the amount of groundwater
being pumped in the area.

Site Geology and Hydrogeology
The site is located on a northeast-southwest trending ridge. LAW advanced two soil
borings on the subject site to collect soil and groundwater samples as a part of the Phase
I LSA. LAW advanced an additional five soil borings at the site during the Phase II LSA.
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In addition, Apex advanced eight soil borings in the vicinity of monitoring well MW-10
installed by Shield Environmental as part of an on-going investigation at the adjacent site.
During these investigations, soil consisting of reddish-brown sandy silt, silty sand, clayey
sand, and sandy clay were encountered, with bedrock located approximately 19 feet
below land surface. Based on interpretation of the topographic map and on-site
observations, surface runoff and the site would be expected to flow overland following
topography to the south and southwest. Based on the surface topography inferred from
topographic maps, properties generally to the northeast would be considered upgradient
(Figure 1).

Updated Receptor Survey
Progress mailed 71 water-supply well questionnaires to the property owners within a
1,000-foot radius of the site. 18 of the questionnaires have been completed and returned
at the time of this report. Progress also contacted Davidson Water to confirm that the
properties within 1,000 feet are connected to the public water system. Progress also
completed a visual reconnaissance within 1,500 feet of the site. Progress identified
evidence of five active water-supply wells used for drinking water within 1,000 feet of the
site. One additional inactive water-supply well was identified within 1,000 feet of the site.
Copies of the returned water-supply well questionnaires are included in the Appendix.

Progress understands that public water is available in the vicinity of the site and that the
properties proximal to the site have access to the public water system.
Determination of Groundwater Flow Direction
The depth to the groundwater surface in each of the wells was measured prior to well
purging using a decontaminated electric sounder. The wells were surveyed by others
using a relative benchmark that was arbitrarily given an elevation of 100 feet. The
elevations of the monitoring wells and the groundwater surface are both relative to that
benchmark. The relative groundwater elevations are shown on Table B-7.
Groundwater elevations are depicted on Figure 7. A groundwater contour map was not
constructed for the site by Progress for this sampling event as the water levels appeared
to be inconsistent with previous sampling events. The water table beneath the site
appears to be affected by the impervious nature of the property and surrounding
properties. Additionally, the water level meter may have been malfunctioning at the time
of the sampling event. Based on information collected during the previous groundwater
sampling event, the groundwater flow direction appears to be to the northeast beneath
the site.

Groundwater Sampling Activities
Progress was on site on January 18, 2023 to collect groundwater samples from the on-
site monitoring wells MW-1 through MW-7 and recovery wells RW-1 through RW-3. Prior
to sampling, the wells were purged of approximately three casing volumes of water (or
bailed dry and sampled). The groundwater samples were decanted into laboratory-
supplied bottles and placed into a cooler packed with ice. The cooler was delivered under
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chain-of-custody to Pace Analytical Laboratories, Inc. (PACE) in Kernersville, North
Carolina for testing. PACE analyzed the groundwater samples for VOCs by Standard
Method 6200B, plus oxygenates. A summary of the groundwater sample analytical results
is included in Table B-4.

 Laboratory analysis of the groundwater samples collected from monitoring wells
MW-2, and MW-5 did not detect targeted petroleum compounds at concentrations
above the laboratory quantitation limits.
 Laboratory analysis of the groundwater samples collected from monitoring wells
MW-3 and MW-4 and recovery well RW-2 did not detect targeted petroleum
compounds at concentrations above their respective North Carolina 2L
Groundwater Quality Standards (NC2LGWQS).
 Laboratory analysis of the groundwater sample collected from monitoring well
MW-1 detected benzene (3,440 µg/L), isopropyl ether (IPE) (271 µg/L), methyl
tert-butyl ether (MTBE) (115 µg/L), and naphthalene (60.7 µg/L) at concentrations
above their respective NC2LGWQS.
 Laboratory analysis of the groundwater sample collected from monitoring well
MW-6 detected benzene (13.0 µg/L) and n-propylbenzene (129 µg/L) at
concentrations above their respective NC2LGWQS.
 Laboratory analysis of the groundwater sample collected from monitoring well
MW-7 detected benzene (186 µg/L) and naphthalene (27.3 µg/L) at
concentrations above their respective.
 Laboratory analysis of the groundwater sample collected from recovery well RW-1
detected benzene (330 µg/L) and naphthalene (39.1 µg/L) at concentrations
above their respective.
 Laboratory analysis of the groundwater sample collected from recovery well RW-3
detected benzene (7.5 µg/L) and naphthalene (12.9 µg/L) at concentrations above
their respective.
 Please note, none of the compounds were detected at concentrations that exceed
the applicable Gross Contamination Levels (GCLs) in the groundwater samples
collected during this sampling event.
The laboratory analytical report for the groundwater samples is provided in the Appendix.
The laboratory test results are summarized on Figure 3. Maps depicting the plumes of
benzene, MTBE, and Total Benzene, Toluene, Ethylbenzene, and Xylenes (Total BTEX) are
included on Figures 4, 5, and 6 respectively.

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E. FREE PRODUCT REMOVAL

Free product was not measured in the select monitoring wells as part of this groundwater
assessment.

F. MONITORED NATURAL ATTENUATION/NATURAL SOURCE ZONE
DEPLETION STATUS

Progress was on site on January 18, 2023, to collect groundwater samples from the on-
site monitoring wells MW-1 through MW-7 and recovery wells RW-1 through RW-3.

Laboratory Analytical Results

PACE analyzed the groundwater samples for volatile organic compounds (VOCs) by
Standard Method 6200B including ethanol, MTBE, and IPE, plus oxygenates. A summary
of the groundwater analytical results is presented in Table B-4 and on Figure 3.

Laboratory analysis of the groundwater samples collected from monitoring and recovery
wells MW-1, MW-6, MW-7, and RW-1 and RW-3 detected targeted petroleum
hydrocarbons in excess of their respective NC2LGWQS. The groundwater concentrations
generally indicated increases in the groundwater samples collected from each of the
monitoring/recovery wells since the most recent sampling event. In addition, the
targeted petroleum concentrations have significantly decreased in each of the monitoring
wells since the implementation of remedial activities at the site.

Based on laboratory analysis of the most recent sampling event Progress makes the
following findings:

 The remaining contaminant mass in the groundwater is estimated to be 1.33 kg.

 Progress located and sampled seven groundwater monitoring wells and three
recovery wells on-site as part of the most recent groundwater sampling event.

 The most recent sampling event detected benzene in the groundwater sample
collected from monitoring well MW-1 at a concentration that has decreased 65.3%
since the 2016 sampling event.

 The most recent sampling event did not detect benzene in the groundwater
sample collected from monitoring well MW-3. Benzene was detected in monitoring
well MW-3 at a concentration of 0.53 µg/L during the 2016 sampling event.

 The most recent sampling event detected benzene in the groundwater sample
collected from monitoring well MW-6 at a concentration that represents a decrease
of 94.2% since the 2010 sampling event.

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 The most recent sampling event detected benzene in the groundwater sample
collected from monitoring well MW-7 at a concentration that represents a decrease
of 68.3% since the 2013 sampling event.

 The most recent sampling event detected benzene in the groundwater sample
collected from recovery well RW-1 at a concentration that has decreased by
92.3% as compared to the results of the 2003 sampling event.

 The most recent sampling event detected benzene in the groundwater sample
collected from recovery well RW-3 at a concentration that has decreased by
97.9% as compared to the results of the 2003 sampling event.

G. CONCLUSIONS

Based on the results of the groundwater sampling event, Progress makes the following
conclusions:

 The site continues to meet the criteria to be classified as High Risk with five active
water supply wells being identified within 1,000 feet of the source area.
 Progress collected groundwater samples from the on-site monitoring wells MW-1
through MW-7 and recovery wells RW-1 through RW-3 on January 18, 2023.
 Laboratory analysis of the groundwater samples collected from three monitoring
wells and two recovery wells detected at least one targeted petroleum
hydrocarbon compound in excess of its respective NC2LGWQS.
 The groundwater concentrations generally indicated slight increases in the
groundwater samples collected from each of the monitoring/recovery wells since
the most recent sampling event.
 None of the detected compounds exceeds its applicable GCL.

Based on the remaining concentrations in select groundwater samples exceeding their
respective NC2LGWQS, Progress recommends the following:

 The continued monitoring of the groundwater at the site.
 Initiate discussions to re-implement remedial actions at the site.

Progress will not complete additional activities at the site unless pre-approved by the
NCDEQ.

Groundwater Monitoring Report March 3, 2023
Former Thrifty Stop #1, Tyro, North Carolina Progress Project No. MOH150N.WM

13

H. STATEMENTS AND CERTIFICATION

1 Enter the date the monitoring report was due. N/A. Will this report be
submitted after the established due date?
YES NO
2 Was any required information from the above template missing from this report? YES NO

3 If applicable, will any of the proposed attenuation milestones under the schedule approved in the Corrective Action Plan not be met? (within a reasonable margin of error)
YES NO

4 Does any known or suspected source zone soil contamination or free product remain outside of the assessed area that could be inhibiting natural attenuation?
YES NO
5 Has there been an unexpected increase in contaminant mass sufficient to suggest a potential new release from a separate onsite or offsite source?
YES NO

6 Certification:
I, Jeffrey A. Ballsieper, a Licensed Geologist for Progress Environmental Group, Inc., do certify that
the information contained in this report is correct and accurate to the best of my knowledge.

_____________________________________
Jeffrey A. Ballsieper, L.G.
Director of Environmental Services

Progress Environmental Group, Inc. is licensed to practice geology in North Carolina. The
certification number of the corporation is C-552.

FIGURES
Figure 1
Topographic Site Map
Former Thrifty Stop #1
Highway 150 and Michael Road
Tyro, North Carolina
P.O. Box 5884
Winston-Salem, NC 27113
Telephone: [phone]
Fax: [phone]
www.progressenvironmental.com
United States Department of the Interior
United States Geological Survey
7.5 Minute Series Topographic Map
Contour Interval: 10 feet
Scale: 1”=2000’
Lexington West, N.C.
Date: 1950, Revised 1994
Churchland, N.C.
Date: 1950, Photorevised 1987
Project: Thrifty Stop #1
Client: Mohamed Elmahdy
Progress Job #: MOH150N.WM
SITE
Site
Date: March 2023
APPROVAL:
ENG CHECK:
DFT CHECK:
DRAWN:
SCALE: 1" = 30'
FIGURE: 2
120 Fayette Street
Winston-Salem, North Carolina 27101
[phone]
JOB: MOH150N.WM
PROGRESS
ENVIRONMENTAL GROUP, INC.
GALAXY FAMILYGAME ROOM
HIGHWAY 150
GAS MI
C
H
A
E
L

R
O
A
D
COMMERCIALPROPERTIES
WWWW
LEGEND
MUNICIPAL WATER SUPPLY LINEW
UST LOCATION
MW-1
MW-2
MW-4
W
MW-5
MW-2 MONITORING WELL LOCATIONS
SB-5
SS
SS
MW-10
SITE MAP
FORMER THRIFTY STOP #1
TYRO, NORTH CAROLINA
RW-1
RW-2
RW-1
RW-3
RECOVERY WELL LOCATIONS
STORM DRAIN
STORM SEWER MAGNETICMW-6
GAS
MW-7
LANDSCAPINGPLANTER
MW-3
DATE: MA 2023
APPROVAL:
ENG CHECK:
DFT CHECK:
DRAWN:
SCALE: 1" = 30'
FIGURE: 3
120 Fayette Street
Winston-Salem, North Carolina 27101
[phone]
JOB: MOH150N.WM
DATE:
PROGRESS
ENVIRONMENTAL GROUP, INC.
GALAXY FAMILYGAME ROOM
HIGHWAY 150 MI
C
H
A
E
L

R
O
A
D
WWWW
LEGEND
W MUNICIPAL WATER SUPPLY LINE
UST LOCATION
MW-1
MW-2
MW-4
W
MW-5
MW-2 MONITORING WELL LOCATIONS
SB-5
SS
SS
GROUNDWATER ANALYTICAL RESULTS MAP
FORMER THRIFTY STOP #1
TYRO, NORTH CAROLINA
RW-1
RW-2
RW-1
RECOVERY WELL LOCATIONS
STORM DRAIN
STORM SEWER
Groundwater Analytical Results in RW-1Benzene 330 ug/LIPE 18.2 ug/LEthylbenzene 18.2 ug/LIsopropylbenzene 2.4 ugLMTBE 6.1 ug/LNaphthalene 39.1 ug/Ln-Propylbenzene 6.6 ug/LToluene 29.4 ug/L1,2,4-Trimethylbenzene 12.0 ug/L1,3,5-Trimethylbenzene 1.7 ug/LTotal Xylenes 35.6 ug/L MAGNETICMW-7
MW-6
Groundwater Analytical Results in MW-5BQL
Groundwater Analytical Results in MW-6Benzene 13.0 ug/L1,4-Dichlorobenzene 0.57 ug/LEthylbenzene 118 ug/LIsopropylbenzene 41.9 ug/LNaphthalene 5.8 ug/Ln-Propylbenzene 129 ug/LToluene 10.2 ug/L1,2,4-Trimethylbenzene 18.1 ug/L1,3,5-Trimethylbenzene 12.4 ug/LTotal Xylenes 68.5 ug/L
GAS
GAS
Groundwater Analytical Results in RW-2Benzene 0.99 ug/LEthylbenzene 2.0 ug/LIsopropylbenzene 1.5 ug/Ln-Propylbenzene 0.82 ug/L
LANDSCAPINGPLANTER
MW-3
MW-10
RW-3
Groundwater Analytical Results in MW-3sec-Butylbenzene 1.7 ug/Ltert-butylbenzene 0.88 ug/LEthylbenzene 0.97 ug/LIsopropylbenzene 1.8 ug/LMTBE 1.4 ug/Ln-Propylbenzene 2.9 ug/L1,3,5-Trimethylbenzene 0.85 ug/L
Groundwater Analytical Results in MW-1tert Amyl Alcohol 2,980 ug/LBenzene 3,440 ug/LIPE 271 ug/LEthylbenzene 375 ug/LMTBE 115 ug/LNaphthalene 60.7 ug/Ln-Propylbenzene 24.5 ug/LToluene 26.3 ug/L1,2,4-Trimethylbenzene 205 ug/LTotal xylenes 88.5 ug/L
Groundwater Analytical Results in MW-2BQL Groundwater Analytical Results in MW-4sec-Butylbenzene 0.55 ug/L
Groundwater Analytical Results in MW-7Benzene 186 ug/LIPE 6.2 ug/LEthylbenzene 98.9 ug/LIsopropylbenzene 6.6 ug/LMTBE 10.9 ug/LNaphthalene 27.3 ug/Ln-Propylbenzene 12.5 ug/LToluene 3.0 ug/L1,2,4-Trimethylbenzene 57.1 ug/L1,3,5-Trimethylbenzene 11.9 ug/LTotal Xylenes 366.4 ug/L
Groundwater Analytical Results in RW-3Benzene 7.5 ug/LEthylbenzene 10 ug/LIsopropylbenzene 1.9 ug/LNaphthalene 12.9 ug/Ln-Propylbenzene 3.6 ug/LToluene 0.97 ug/L1,2,4-Trimethylbenzene 3.5 ug/L1,3,5-Trimethylbenzene 1.1 ug/LTotal Xylenes 9.22 ug/L
MAR 2023
APPROVAL:
ENG CHECK:
DFT CHECK:
DRAWN:
SCALE: 1" = 30'
FIGURE: 4
120 Fayette Street
Winston-Salem, North Carolina 27101
[phone]
JOB: MOH150N.WM
DATE:
PROGRESS
ENVIRONMENTAL GROUP, INC.
GALAXY FAMILYGAME ROOM
HIGHWAY 150 MI
C
H
A
E
L

R
O
A
D
COMMERCIALPROPERTIES
WWWW
LEGEND
W MUNICIPAL WATER SUPPLY LINE
UST LOCATION
MW-13,440
MW-2BQL
MW-4BQL
W
MW-5BQL
MW-613.0 MONITORING WELL LOCATION AND BENZENE CONCENTRATION
SB-5
SS
SS
MW-10
BENZENE ISOPLETH MAP
FORMER THRIFTY STOP #1
TYRO, NORTH CAROLINA
RW-1330
RW-20.99
RW-1330
RW-37.5
RECOVERY WELL LOCATION ANDBENZENE CONCENTRATION
STORM DRAIN
STORM SEWER MAGNETICMW-7186
MW-613.0
GAS
GAS
1,000
100
BQL
LANDSCAPINGPLANTER
MW-3BQL
MAR 2023
MW-5 is a Type III monitoring well and therefore
was not used in the construction of the isopleths.
APPROVAL:
ENG CHECK:
DFT CHECK:
DRAWN:
SCALE: 1" = 30'
FIGURE: 5
120 Fayette Street
Winston-Salem, North Carolina 27101
[phone]
JOB: MOH150N.WM
DATE:
PROGRESS
ENVIRONMENTAL GROUP, INC.
GALAXY FAMILYGAME ROOM
HIGHWAY 150 MI
C
H
A
E
L

R
O
A
D
COMMERCIALPROPERTIES
WWWW
LEGEND
W MUNICIPAL WATER SUPPLY LINE
UST LOCATION
MW-13,930
MW-2BQL
MW-4BQL
W
MW-5BQL
MW-6209.70 MONITORING WELL LOCATION AND TOTAL BTEX CONCENTRATION
SB-5
SS
SS
TOTAL BTEX ISOPLETH MAP
FORMER THRIFTY STOP #1
TYRO, NORTH CAROLINA
RW-1413.20
RW-22.99
RW-1413.20
RECOVERY WELL LOCATION ANDTOTAL BTEX CONCENTRATION
STORM DRAIN
STORM SEWER MAGNETICMW-7654.30
MW-6209.7
GAS
GAS
BQL
LANDSCAPINGPLANTER
MW-30.97
100
MW-10
RW-327.69
1,000
MAR 2023
MW-5 is a Type III monitoring well and therefore
was not used in the construction of the isopleths.
APPROVAL:
ENG CHECK:
DFT CHECK:
DRAWN:
SCALE: 1" = 30'
FIGURE: 6
120 Fayette Street
Winston-Salem, North Carolina 27101
[phone]
JOB: MON150N.WM
DATE:
PROGRESS
ENVIRONMENTAL GROUP, INC.
GALAXY FAMILYGAME ROOM
HIGHWAY 150 MI
C
H
A
E
L

R
O
A
D
COMMERCIALPROPERTIES
WWWW
LEGEND
W MUNICIPAL WATER SUPPLY LINE
UST LOCATION
MW-1115
MW-2BQL
MW-4BQL
W
MW-5BQL
MW-710.9 MONITORING WELL LOCATION AND TOTAL BTEX CONCENTRATION
SB-5
SS
SS
MTBE ISOPLETH MAP
FORMER THRIFTY STOP #1
TYRO, NORTH CAROLINA
RW-16.1
RW-2BQL
RW-16.1
RECOVERY WELL LOCATION ANDTOTAL BTEX CONCENTRATION
STORM DRAIN
STORM SEWER MAGNETICMW-710.9
MW-6BQL
GAS
GAS
LANDSCAPINGPLANTER
MW-31.4
MW-10
RW-3BQL
10
BQL
MAR 2023
MW-5 is a Type III monitoring well and therefore
was not used in the construction of the isopleths.
APPROVAL:
ENG CHECK:
DFT CHECK:
DRAWN:
SCALE: 1" = 30'
DATE: MAR 2023
FIGURE 7
JOB: MOH150N.WM
120 Fayette Street
Winston-Salem, North Carolina 27101
[phone]
PROGRESSENVIRONMENTAL GROUP, INC.
GALAXY FAMILY
GAME ROOM
HIGHWAY 150 MI
C
H
A
E
L

R
OA
D
COMMERCIALPROPERTIES
LANDSCAPINGPLANTER
WWWW
LEGEND
W
W
MW-291.83
SB-5
SS
SS STORM SEWER
STORM DRAIN
MW-10
RW-1 RECOVERY WELL LOCATION
RW-393.46 MAGNETICGROUNDWATER CONTOUR MAP
FORMER THRIFTY STOP #1
TYRO, NORTH CAROLINA
MW-791.99
MW-692.81
RW-294.69
RW-191.42
MW-5
MW-191.62
MW-291.83
MW-391.81
G
AS
GAS
MW-492.13
CALCULATED GROUNDWATER FLOW DIRECTION
MONITORING WELL LOCATION AND RELATIVE GROUNDWATER ELEVATION
GASOLINE UST
MUNICIPAL WATER LINE
MW-7
REV
0
DRAWING TITLE
DRAWING NUMBER
FIGURE 8
LEGEND
Water-Supply Well Locations Former Thrifty Stop #13117 Michael Road
Tyro, North Carolina
DR.: JAB MAR 2023
CK.: JSL
APP'D.:
SCALE: SHOWN
PROJECT: QUA407N.GW
MAR 2023
Active Water-SupplyWell Location
www.progressenvironmental.com
P.O. Box 5884
Winston-Salem, North Carolina 27113(336) 722-9999
Progress
Environmental
Group, Inc.
WSW-2
WSW-1SITE
1000' Feet
WSW-2
WSW-3
WSW-4
WSW-5
WSW-6
Inactive Water-SupplyWell Location
WSW-1

TABLES
Well Number Sampling
Date
tert Amyl alcoholBenzeneTolueneEthylbenzeneTotal XylenesChlorobenzene1,4-DichlorobenzeneIPEMTBENaphthalenen-Butylbenzenen-Propylbenzenep-IsopropyltolueneIsopropylbenzeneChloroform1,2-Dichloroethanesec-Butylbenzenetert-Butylbenzene1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneTotal BTEX07/15/03 NT 6,100 5,400 450 2,260 BQL BQL BQL 1,400 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 14,210
09/10/03 NT 4,800 3,300 360 1,850 BQL BQL BQL 560 BQL BQL BQL BQL 400 BQL BQL BQL BQL BQL BQL 10,310
12/16/03 NT 1,600 750 140 510 BQL BQL BQL 200 BQL BQL BQL BQL 140 6.6 74 BQL BQL BQL BQL 3,000
11/03/10 NT
06/04/13 NT 6,480 2,150 365 1,920 BQL BQL 694 791 144 8.0J 44.3 13.3 14.0 BQL BQL BQL BQL 785 284 10,915
09/20/16 NT 9,920 4,760 570 2,350 BQL BQL 905 BQL 213 BQL BQL BQL BQL BQL BQL BQL BQL 288 BQL 17,600
06/24/20 NT 4,020 86.2 223 442 BQL BQL 217 BQL 21.8 BQL BQL BQL BQL BQL BQL BQL BQL 113 BQL 4,77101/18/23 2,980 3,440 26.3 375 88.5 BQL BQL 271 115 60.7 BQL 24.5 BQL BQL BQL BQL BQL BQL 205 BQL 3,930
07/15/03 NT BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
09/10/03 NT BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
12/16/03 NT BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 6.0 BQL BQL BQL BQL BQL BQL
11/03/10 NT BQL BQL BQL 3.05 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 3.05
06/04/13 NT BQL 0.82 0.13J 1.57 BQL BQL BQL BQL 0.16J 0.95 3.33 BQL 1.46 BQL BQL 0.78 BQL 0.54 BQL 2.39
09/20/16 NT BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 1.19 BQL BQL BQL BQL BQL BQL BQL BQL BQL
06/24/20 NT BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL01/18/23 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
07/15/03 NT BQL BQL 8.3 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 8.30
09/10/03 NT BQL BQL 9.3 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 9.30
12/16/03 NT BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
11/03/10 NT BQL 2.01 10.9 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 12.91
06/04/13 NT BQL 0.89 5.10 BQL BQL BQL BQL BQL 2.07 0.52 18.4 1.30 7.34 BQL BQL 3.78 1.33 0.32J BQL 5.99
09/20/16 NT 0.53 BQL 4.60 BQL BQL BQL BQL BQL 1.84 0.76 21.7 0.72 9.85 BQL BQL 5.06 1.74 BQL BQL 5.13
06/24/20 NT BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 0.91 BQL BQL BQL BQL BQL BQL BQL BQL BQL
01/18/23 BQL BQL BQL 0.97 BQL BQL BQL BQL 1.4 BQL BQL 2.9 BQL 1.8 BQL BQL 1.7 0.88 BQL 0.85 0.97
07/15/03 NT BQL 1.2 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 1.20
09/10/03 NT BQL BQL BQL BQL BQL BQL BQL 220 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
12/16/03 NT BQL BQL BQL BQL BQL BQL BQL 5.9 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
11/03/10 NT BQL BQL 0.98J BQL BQL BQL BQL 1.53J BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
06/04/13 NT BQL 0.80 BQL BQL BQL BQL BQL BQL 0.15J BQL BQL BQL BQL 0.23J BQL BQL BQL BQL BQL 0.80
09/20/16 NT BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
06/24/20 NT BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
01/18/23 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 0.55 BQL BQL BQL BQL
11/03/10 NT BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
06/04/13 NT BQL 0.99 BQL BQL BQL BQL BQL BQL BQL BQL 0.37J BQL 0.80 BQL BQL 2.10 0.18J 0.20J BQL 0.99
06/04/14 NT BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
02/05/15 NT BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
09/04/15 NT BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
09/20/16 NT BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
06/24/20 NT BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
01/18/23 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
11/03/10 NT 228 82.9 BQL BQL BQL BQL BQL 31.5J BQL BQL BQL BQL 19.0J BQL BQL BQL BQL BQL BQL 310.90
06/04/13 NT 20.6 52.0 694 1,150 BQL BQL BQL BQL 409 14.4 137 6.70 46.5 BQL BQL BQL BQL 1,070 226 1,916.60
01/06/14 NT 13.8 35.5 530 844 BQL BQL BQL BQL 381 BQL 92.3 BQL 30.3 BQL BQL BQL BQL 909 226 1,423.30
06/04/14 NT 9.90 24.9 518 760 BQL BQL BQL BQL 321 11.5 113 BQL 35.7 BQL BQL BQL BQL 1,070 196 1,312.80
02/05/15 NT BQL 28.0 525 637 BQL BQL BQL BQL 251 BQL 94.0 BQL 28.0 BQL BQL BQL BQL 692 124 1,190.00
09/04/15 NT 10.8 16.1 251 410 BQL BQL BQL BQL 176 5.40 46.5 BQL 17.2 BQL BQL BQL BQL 372 71.6 687.90
09/20/16 NT 8.4 17.2 337 341 BQL BQL BQL BQL 145 10.9 110 3.30 37.2 BQL BQL BQL BQL 357 72.6 703.60
06/24/20 NT 12.4 10.7 108 55.4 BQL BQL 1.82 BQL BQL 10.8 80.3 1.54 26.3 BQL BQL BQL BQL 10.3 8.30 186.5001/18/23 BQL 13.0 10.2 118 68.5 BQL 0.57 BQL BQL 5.8 BQL 129 BQL 41.9 BQL BQL BQL BQL 18.1 12.4 209.70
06/04/13 NT 588 48.6 534 190 BQL BQL 4.4J BQL 190 4.7J 58.9 2.70J 28 BQL BQL 4.4J BQL 147 60.7 1,360.60
01/06/14 NT 113 17.2 263 168 BQL BQL 2.33 160 150 BQL 35.7 BQL 13.7 BQL BQL BQL BQL 170 48.5 561.20
06/04/14 NT 24.6 BQL 198 36.6 BQL BQL BQL 17.5 467 9.7 76.8 BQL 18.1 BQL BQL 5.80 BQL 472 15.6 259.20
02/05/15 NT 40.6 7.97 180 45.5 BQL BQL BQL BQL 41.7 1.36 19.9 BQL 7.84 BQL BQL 1.32 BQL 23.1 10.2 274.07
09/04/15 NT 66.4 9.5 208 30 BQL BQL BQL BQL 45.4 BQL 28.2 BQL 12.1 BQL BQL BQL BQL 14.3 5.85 313.90
09/20/16 NT 10.8 1.81 21.6 28.5 BQL BQL BQL BQL 12.1 0.72 8.09 BQL 3.38 BQL BQL 1.71 BQL 1.55 2.90 62.71
06/24/20 NT 4.48 BQL 2.30 1.79 BQL BQL 2.89 9.01 BQL BQL 1.50 0.72 0.95 BQL BQL BQL BQL BQL 4.21 8.57
01/18/23 BQL 186 3.0 98.9 366.4 BQL BQL 6.2 10.9 27.3 BQL 12.5 BQL 6.6 BQL BQL BQL BQL 57.1 11.9 654.30
MW-10 11/03/10 NT 1,410 2,490 264 4,500 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 8,664.00
07/15/03 NT 4,300 3,500 1,200 4,300 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 13,300.00
08/25/03 NT 881 1,170 380 3,270 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 5,701.00
09/10/03 NT 2,000 2,000 470 3,100 BQL BQL BQL BQL BQL BQL BQL BQL 140 BQL BQL BQL BQL BQL BQL 7,570.00
11/14/03 NT 1,200 1,300 600 2,900 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 6,000.00
12/15/03 NT
03/17/04 NT 2,390 1,680 726 2,260 BQL BQL BQL BQL BQL BQL BQL BQL 545 BQL BQL BQL BQL BQL BQL 7,056.00
06/03/04 NT 929 641 102 845 BQL BQL BQL 302 BQL BQL BQL BQL 135 BQL BQL BQL BQL BQL BQL 2,517.00
10/14/04 NT 2,320 4,530 1,110 3,680 BQL BQL BQL 1,790 BQL BQL BQL BQL 845 BQL BQL BQL BQL BQL BQL 11,640.00
01/06/05 NT 3,000 1,660 480 1,490 BQL BQL BQL 493 BQL BQL BQL BQL 322 BQL BQL BQL BQL BQL BQL 6,630.00
03/22/07 NT 1,050 304 148 628 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 2,130.00
04/18/07 NT 418 76 62 225 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 781.00
07/23/07 NT 1,160 139 153 330 BQL BQL BQL <250 BQL BQL BQL BQL <250 BQL BQL BQL BQL BQL BQL 1,782.00
08/16/07 NT 2,280 655 134 624 BQL BQL BQL 517 BQL BQL BQL BQL 291 BQL BQL BQL BQL BQL BQL 3,693.00
11/05/07 NT 874 203 81 335 BQL BQL BQL 114 BQL BQL BQL BQL 101 BQL BQL BQL BQL BQL BQL 1,493.00
11/29/07 NT 904 283 56 286 BQL BQL BQL 369 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 1,529.00
03/15/08 NT 379 44 42 99 BQL BQL BQL 93 BQL BQL BQL BQL 63 BQL BQL BQL BQL BQL BQL 564.00
04/08/08 NT 431 100 54 131 BQL BQL BQL 88 BQL BQL BQL BQL 53 BQL 5.7 BQL BQL BQL BQL 716.00
12/19/08 NT 465 33.8 46.8 90.2 BQL BQL BQL 94.5 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 635.80
01/05/09 NT 871 389 155 354 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 1,769.00
05/05/09 NT 400 77.5 152 235 BQL BQL BQL 64.1 BQL BQL BQL BQL 46.2 BQL 8.52 BQL BQL BQL BQL 864.50
05/19/09 NT 602 269 109 320 BQL BQL BQL 102 BQL BQL BQL BQL BQL BQL 22.3 BQL BQL BQL BQL 1,300.00
11/16/09 NT 256 43.6 19.2 52.7 BQL BQL BQL 22.4 BQL BQL BQL BQL 23.6 BQL 4.10 BQL BQL BQL BQL 371.50
12/10/09 NT 49.3 1.8 3.63 15.8 BQL BQL BQL 28.5 BQL BQL BQL BQL 13.0 BQL'2.17 BQL BQL BQL BQL 70.49
07/06/10 NT 2,410 358 363 578 BQL BQL BQL 681 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 3,709.00
07/30/10 NT 2,970 1,370 270 789 BQL BQL BQL 448 BQL BQL BQL BQL 237 BQL 48.0 BQL BQL BQL BQL 5,399.00
11/03/10 NT 2,540 427 259 488 BQL BQL BQL 707 BQL BQL BQL BQL 158J BQL BQL BQL BQL BQL BQL 3,714.00
04/20/11 NT 1,480 217 152 333 BQL BQL BQL 350 BQL BQL BQL BQL 34.3 BQL BQL BQL BQL BQL BQL 2,182.00
06/30/11 NT 1,770 312 106 295 BQL BQL BQL 337 BQL BQL BQL BQL 168 BQL 12.9 BQL BQL BQL BQL 2,483.00
02/22/12 NT 1,030 180 94 269 BQL BQL 84 213 56.5 BQL 8.25J BQL 4.0J BQL BQL BQL BQL 72.3 21 1,573.00
04/18/12 NT 2,160 312 209 382 BQL BQL 205 309 90.8 BQL 20.5 BQL 9.5J BQL 97.5 BQL BQL 109 20.3 3,063.00
01/06/14 NT 836 165 94.6 189 BQL BQL 82.7 59.5 25.0 BQL 3.20J BQL 1.40J BQL BQL BQL BQL 40.6 9.6 1,284.60
06/04/14 NT 611 40.2 58.0 77.0 BQL BQL 53.0 BQL 33.2 BQL BQL BQL BQL BQL BQL BQL BQL 45.2 BQL 786.20
02/05/15 NT 121 4.10 6.80 21.2 BQL BQL 19.8 12.4 3.78 BQL 0.80 1.63 BQL BQL 1.91 BQL BQL 12.2 6.81 153.10
09/04/15 NT 479 21.9 55.4 68.6 BQL BQL 42.6 81.5 33.8 BQL BQL BQL BQL BQL BQL BQL BQL 22.4 BQL 624.90
09/20/16 NT 371 3.90 19.5 28.5 BQL BQL 29.1 BQL 30.7 BQL 3.55 BQL BQL BQL BQL BQL BQL 25.8 2.90 422.90
06/24/20 NT 51.2 2.48 4.52 3.49 BQL BQL 6.67 BQL 1.78 BQL 0.74 BQL BQL BQL BQL BQL BQL BQL BQL 61.69
01/18/23 BQL 330 18.2 29.4 35.6 BQL BQL 18.2 6.1 39.1 BQL 6.6 BQL 2.4 BQL BQL BQL BQL 12.0 1.7 413.20
1 600 600 500 50 6 70 20 6 70 70 25 70 70 0.40 70 70 400 400 NA
5,000 257,500 84,500 87,500 50,000 6,000 70,000 20,000 6,000 6,900 30,000 11,700 70,000 70,000 380 8,500 15,000 28,500 25,000 NA
Notes:
= Exceeds North Carolina 2L Groundwater Quality Standards (NC2LGWQS)
= Exceeds North Carolina Risk-Based Gross Contamination Levels (GCLs)All contaminant concentrations are reported in micrograms per liter (µg/L)
BQL = Compounds not detected by laboratory analysis
FREE PRODUCT = Well was not sampled due to presence of free product
NA = Not Applicable
FREE PRODUCT
TABLE B-4
SUMMARY OF DETECTED GROUNDWATER ANALYTICAL RESULTS
FORMER THRIFTY STOP #1
FREE PRODUCT
PROGRESS PROJECT No. MOH150N.WM
MW-7
RW-1
NC2LGWQS (µg/L)
GCLs (µg/L)
MW-2
MW-1
MW-3
MW-4
MW-5
MW-6
Well Number Sampling
Date
tert Butyl AlcoholBenzeneTolueneEthylbenzeneTotal XylenesChlorobenzene1,4-DichlorobenzeneIPEMTBENaphthalenen-Butylbenzenen-Propylbenzenep-IsopropyltolueneIsopropylbenzeneChloroform1,2-Dichloroethanesec-Butylbenzenetert-Butylbenzene1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneTotal BTEX07/15/03 NT 71 BQL 110 125 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 306.00
08/25/03 NT 670 104 138 827 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 1,739.00
09/10/03 NT 43 BQL 61 14 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 118.00
11/14/03 NT 55 12 110 94.4 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 271.40
12/15/03 NT 24 BQL 61 46.2 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 131.20
03/17/04 NT 26 9.2 89 44 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 168.20
06/03/04 NT 288 341 1,240 1,290 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 3,159.00
10/14/04 NT 18 3.7 14 57 BQL BQL BQL 5.8 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 92.70
01/06/05 NT 21 6.9 23 8.5 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 59.40
03/22/07 NT 11 13 18 20 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 62.00
04/18/07 NT 12 13 14 23 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 62.00
07/23/07 NT 3.1 1.7 BQL 2.5 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 7.30
08/16/07 NT BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
11/05/07 NT 1 BQL 1.1 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 2.40
11/29/07 NT 1.3 1.0 1.2 1.3 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 4.80
03/15/08 NT 16 5.3 60 21 BQL BQL BQL 7.8 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 102.30
04/08/08 NT 8.9 3.6 13 12 BQL BQL BQL 6.6 BQL BQL BQL BQL 8.4 BQL BQL BQL BQL BQL BQL 37.50
12/19/08 NT 4.3 2.2 1.3 1.1 BQL BQL BQL 6.0 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 8.90
01/05/09 NT 3.8 2.0 5.9 4.5 BQL BQL BQL 6.5 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 16.20
05/05/09 NT 2.32 1.07 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 3.39
05/19/09 NT 2.37 1.17 BQL 1.26 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 4.80
11/16/09 NT 2.52 1.47 4.04 2.61 BQL BQL BQL 5.55 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 10.64
12/10/09 NT 2.16 BQL 2.19 1.5 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 5.89
07/06/10 NT BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
07/30/10 NT BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
11/03/10 NT BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
04/20/11 NT 1.88 1.52 3.75 5.10 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 12.25
06/30/11 NT BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
02/22/12 NT 1.05 0.37J 0.72 1.55 BQL BQL BQL BQL 0.32J BQL 0.91 BQL 0.97 BQL BQL 0.19J BQL 0.19J BQL 3.32
04/18/12 NT 0.17J BQL BQL 0.31J 0.15J 0.23J BQL BQL BQL BQL 0.20J BQL 1.05 BQL BQL 0.17J BQL BQL BQL 0.48
01/06/14 NT 0.14J BQL 0.13J 0.18J BQL 0.15J BQL BQL BQL BQL 0.17J BQL 0.27J BQL BQL 0.15J BQL BQL BQL 0.45
06/04/14 NT BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
02/05/15 NT BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
09/04/15 NT BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
09/20/16 NT BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
06/24/20 NT BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
01/18/23 BQL 0.99 BQL 2.0 BQL BQL BQL BQL BQL BQL BQL 0.82 BQL 1.5 BQL BQL BQL BQL BQL BQL 2.99
07/15/03 NT 360 BQL 1,400 420 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 2,180.00
08/25/03 NT 307 272 1,580 636 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 2,795.00
09/10/03 NT 290 180 1,300 400 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 2,170.00
11/14/03 NT 550 300 2,600 2,540 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 5,990.00
12/15/03 NT 380 BQL 1,100 890 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 2,370.00
03/17/04 NT 407 186 1,330 1,030 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 2,953.00
06/03/04 NT 31 12 88 59 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 190.00
10/14/04 NT 77 59 938 1,450 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 2,524.00
01/06/05 NT 914 394 573 707 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 2,588.00
03/22/07 NT 710 381 216 462 BQL BQL BQL BQL BQL BQL BQL BQL 13.0 BQL BQL BQL BQL BQL BQL 1,769.00
04/18/07 NT BQL 30 40 87 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 157.00
07/23/07 NT 2,160 1,250 716 1,350 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 5,476.00
08/16/07 NT 2,000 1,280 602 1,780 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 5,662.00
11/05/07 NT 100 525 226 2,020 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 2,871.00
11/29/07 NT 64 356 137 1,290 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 1,847.00
03/15/08 NT 1,310 1,330 223 992 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 3,855.00
04/08/08 NT BQL 6.8 26 214 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 246.80
12/19/08 NT 604 729 207 1,310 BQL BQL BQL 53.3 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 2,850.00
01/05/09 NT 88.8 93.1 14.6 106 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 302.50
05/05/09 NT 7.79 19.8 4.58 37.6 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 69.77
05/19/09 NT 145 123 73.8 237 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 578.80
11/16/09 NT 324 289 103 323 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 1,039.00
12/10/09 NT 51.2 36.1 23.6 89.2 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 200.10
07/06/10 NT 364 107 232 152 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 855.00
07/30/10 NT 576 386 216 486 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 1,664.00
11/03/10 NT 763 29.7 262 101 BQL BQL BQL 8.66J BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 1,155.70
04/20/11 NT 132 92.8 69.1 207 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 500.90
06/30/11 NT 3.27 5.04 BQL 11.9 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 20.21
02/22/12 NT 0.85 0.56 0.31J 2.96 BQL BQL BQL BQL 0.15J BQL BQL BQL BQL BQL BQL BQL BQL 0.79 0.58 4.37
04/18/12 NT 83.6 64.4 44.7 326 BQL BQL BQL BQL 34.6 BQL 4.00J BQL 2.00J BQL BQL BQL BQL 102 40.6 518.70
01/06/14 NT 30.9 2.19 8.36 12.3 BQL BQL 0.29J BQL 5.15 BQL 0.57 BQL 0.31J BQL BQL BQL BQL 7.13 2.77 53.75
06/04/14 NT 69.9 2.78 24.9 14.3 BQL BQL BQL BQL 30.9 BQL 2.30 BQL 1.10 BQL BQL BQL BQL 18.5 0.63 111.88
02/05/15 NT 13.0 BQL 1.23 1.66 BQL BQL BQL BQL 1.48 BQL 0.55 BQL BQL BQL BQL BQL BQL 2.46 BQL 15.89
09/04/15 NT 106 1.41 4.38 10.8 BQL BQL 0.73 BQL 7.02 BQL 2.98 BQL 1.37 BQL BQL BQL BQL 16.7 1.75 122.59
09/20/16 NT 97.5 1.06 3.63 5.93 BQL BQL 0.63 BQL 11.5 BQL 3.40 BQL 1.85 BQL BQL 0.52 BQL 7.31 0.71 108.12
06/24/20 NT BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
01/18/23 BQL 7.5 0.97 10 9.22 BQL BQL BQL BQL 12.9 BQL 3.6 BQL 1.9 BQL BQL BQL BQL 3.5 1.1 27.69
1 600 600 500 50 6 70 20 6 70 70 25 70 70 0.40 70 70 400 400 NA
5,000 257,500 84,500 87,500 50,000 6,000 70,000 20,000 6,000 6,900 30,000 11,700 70,000 70,000 380 8,500 15,000 28,500 25,000 NA
Notes:
= Exceeds North Carolina 2L Groundwater Quality Standards (NC2LGWQS)
= Exceeds North Carolina Risk-Based Gross Contamination Levels (GCLs)All contaminant concentrations are reported in micrograms per liter (µg/L)
BQL = Compounds not detected by laboratory analysis
FREE PRODUCT = Well was not sampled due to presence of free product
NA = Not Applicable
GCLs (µg/L)
NC2LGWQS (µg/L)
TABLE B-4
SUMMARY OF DETECTED GROUNDWATER ANALYTICAL RESULTS
FORMER THRIFTY STOP #1
PROGRESS PROJECT No. 1015101.001
RW-2
RW-3
Well # Property Owner Property Address Owner Mailing Address Depth
(ft)Use Distance
(ft)Direction
WSW-1 Elmer Swicegood and
Sherry Walser
3538 Tyro Road
Lexington, NC 27295
1980 Yadkin College Road
Lexington, NC 27295 Unknown Inactive 830 E
WSW-2 Bertie Swicegood and
Sherry Walser
4249 S NC Highway 150
Lexington, NC 27295
1980 Yadkin College Road
Lexington, NC 27295 Unknown Active 710 NE
WSW-3 Martin and Sharon Norris 152 Giles Road
Lexington, NC 27295
507 Curtis Drive Lexington,
NC 27295 Unknown Active 955 NNE
WSW-4 Christopher Joe Casstevens 181 Giles Road
Lexington, NC 27295
205 Chapel Drive Lexington,
NC 27295 Unknown *Active 875 N
WSW-5 Beverly Khemlani 4504 S NC Highway 150
Lexington, NC 27295
3821 Littlebrook Drive
Clemmons, NC 27012 Unknown Active 705 SW
WSW-6 Ashleigh Shoaf 137 Jeff Avenue
Lexington, NC 27295
137 Jeff Avenue
Lexington, NC 27295 Unknown Active 975 SW
* Has a tap but water account is inactive, if occupied water source is from water-supply well.
Water-supply well locations depicted on Figure 5; Completed by Progress in 02.24.2023 and active wells confirmed with Davidson Water 03.03.23
TABLE B-5
WATER SUPPLY WELL INFORMATION
RECEPTOR SURVEY
THRIFTY STOP #1
3117 MICHAEL ROAD
TYRO, DAVIDSON COUNTY NORTH CAROLINA
NCDEQ INCIDENT #17710
TABLE B-7
Elevation of Depth to Groundwater
Well Top of Pipe Groundwater Elevation
Number (feet)(feet)(feet)
MW-1 98.33 6.71 91.62
MW-2 99.38 7.55 91.83
MW-3 99.30 7.49 91.81
MW-4 98.80 6.67 92.13
MW-5 NM 6.22 NM
MW-6 99.03 6.22 92.81
MW-7 97.80 5.81 91.99
RW-1 97.31 5.89 91.42
RW-2 100.58 5.89 94.69
RW-3 100.57 7.11 93.46
Notes:
1) Water levels measured by Progress personnel on January 18, 2023
2) Depths are measured from the top of the PVC riser pipe.
3) Elevations are referenced to an assumed site datum (concrete pump island = 100.0 feet).
PROGRESS PROJECT No. MOH150N.WM
GROUNDWATER ELEVATION DATA
FORMER THRIFTY STOP #1

APPENDIX

#=CL#
February 01, 2023
LIMS USE: FR - JEFF BALLSIEPER
LIMS OBJECT ID: 92647704
92647704
Project:
Pace Project No.:
RE:
Jeff Ballsieper
Progress Environmental, Inc.
120 Fayette St.
Winston Salem, NC 27101
Former Thrifty Shop #1
Dear Jeff Ballsieper:
Enclosed are the analytical results for sample(s) received by the laboratory on January 19, 2023. The results relate only to
the samples included in this report. Results reported herein conform to the applicable TNI/NELAC Standards and the
laboratory's Quality Manual, where applicable, unless otherwise noted in the body of the report.
The test results provided in this final report were generated by each of the following laboratories within the Pace Network:
• Pace Analytical Services - Charlotte
If you have any questions concerning this report, please feel free to contact me.
Sincerely,
Stephanie Knott
[e-mail]
Project Manager
704-977-0981
Enclosures
cc:Jay Lawson, Progressive Environmental Group
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
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 1 of 40
#=CP#
CERTIFICATIONS
Pace Project No.:
Project:
92647704
Former Thrifty Shop #1
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
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 2 of 40
#=SA#
SAMPLE ANALYTE COUNT
Pace Project No.:
Project:
92647704
Former Thrifty Shop #1
Lab ID Sample ID Method
Analytes
Reported LaboratoryAnalysts
92647704001 MW-1 SM 6200B 69 PASI-CCL
92647704002 MW-2 SM 6200B 69 PASI-CLMB
92647704003 MW-3 SM 6200B 69 PASI-CLMB
92647704004 MW-4 SM 6200B 69 PASI-CLMB
92647704005 MW-5 SM 6200B 69 PASI-CLMB
92647704006 MW-6 SM 6200B 69 PASI-CCL
92647704007 MW-7 SM 6200B 69 PASI-CCL
92647704008 RW-1 SM 6200B 69 PASI-CCL
92647704009 RW-2 SM 6200B 69 PASI-CCL
92647704010 RW-3 SM 6200B 69 PASI-CCL
PASI-C = Pace Analytical Services - Charlotte
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 3 of 40
#=HO#
SUMMARY OF DETECTION
Pace Project No.:
Project:
92647704
Former Thrifty Shop #1
Parameters AnalyzedResult
Lab Sample ID
Report Limit QualifiersUnitsMethod
Client Sample ID
92647704001 MW-1
tert-Amyl Alcohol 2980 ug/L 01/31/23 08:062500SM 6200B
Benzene 3440 ug/L 01/31/23 08:0612.5SM 6200B
Diisopropyl ether 271 ug/L 01/31/23 08:0612.5SM 6200B
Ethylbenzene 375 ug/L 01/31/23 08:0612.5SM 6200B
Methyl-tert-butyl ether 115 ug/L 01/31/23 08:0612.5SM 6200B
Naphthalene 60.7 ug/L 01/31/23 08:0650.0SM 6200B
n-Propylbenzene 24.5 ug/L 01/31/23 08:0612.5SM 6200B
Toluene 26.3 ug/L 01/31/23 08:0612.5SM 6200B
1,2,4-Trimethylbenzene 205 ug/L 01/31/23 08:0612.5SM 6200B
m&p-Xylene 28.5 ug/L 01/31/23 08:0625.0SM 6200B
o-Xylene 60.0 ug/L 01/31/23 08:0612.5SM 6200B
92647704003 MW-3
sec-Butylbenzene 1.7 ug/L 01/25/23 18:010.50SM 6200B
tert-Butylbenzene 0.88 ug/L 01/25/23 18:010.50SM 6200B
Ethylbenzene 0.97 ug/L 01/25/23 18:010.50SM 6200B
Isopropylbenzene (Cumene)1.8 ug/L 01/25/23 18:010.50SM 6200B
Methyl-tert-butyl ether 1.4 ug/L 01/25/23 18:010.50SM 6200B
n-Propylbenzene 2.9 ug/L 01/25/23 18:010.50SM 6200B
1,3,5-Trimethylbenzene 0.85 ug/L 01/25/23 18:010.50SM 6200B
92647704004 MW-4
sec-Butylbenzene 0.55 ug/L 01/25/23 18:190.50SM 6200B
92647704006 MW-6
Benzene 13.0 ug/L 01/31/23 03:300.50SM 6200B
1,4-Dichlorobenzene 0.57 ug/L 01/31/23 03:300.50SM 6200B
Ethylbenzene 118 ug/L 01/31/23 03:300.50SM 6200B
Isopropylbenzene (Cumene)41.9 ug/L 01/31/23 03:300.50SM 6200B
Naphthalene 5.8 ug/L 01/31/23 03:302.0SM 6200B
n-Propylbenzene 129 ug/L 01/31/23 03:300.50SM 6200B
Toluene 10.2 ug/L 01/31/23 03:300.50SM 6200B
1,2,4-Trimethylbenzene 18.1 ug/L 01/31/23 03:300.50SM 6200B
1,3,5-Trimethylbenzene 12.4 ug/L 01/31/23 03:300.50SM 6200B
m&p-Xylene 61.5 ug/L 01/31/23 03:301.0SM 6200B
o-Xylene 7.0 ug/L 01/31/23 03:300.50SM 6200B
92647704007 MW-7
Benzene 186 ug/L 01/31/23 09:560.50SM 6200B
Diisopropyl ether 6.2 ug/L 01/31/23 09:560.50SM 6200B
Ethylbenzene 98.9 ug/L 01/31/23 09:560.50SM 6200B
Isopropylbenzene (Cumene)6.6 ug/L 01/31/23 09:560.50SM 6200B
Methyl-tert-butyl ether 10.9 ug/L 01/31/23 09:560.50SM 6200B
Naphthalene 27.3 ug/L 01/31/23 09:562.0SM 6200B
n-Propylbenzene 12.5 ug/L 01/31/23 09:560.50SM 6200B
Toluene 3.0 ug/L 01/31/23 09:560.50SM 6200B
1,2,4-Trimethylbenzene 57.1 ug/L 01/31/23 09:560.50SM 6200B
1,3,5-Trimethylbenzene 11.9 ug/L 01/31/23 09:560.50SM 6200B
m&p-Xylene 365 ug/L 01/31/23 09:561.0SM 6200B
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
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 4 of 40
#=HO#
SUMMARY OF DETECTION
Pace Project No.:
Project:
92647704
Former Thrifty Shop #1
Parameters AnalyzedResult
Lab Sample ID
Report Limit QualifiersUnitsMethod
Client Sample ID
92647704007 MW-7
o-Xylene 1.4 ug/L 01/31/23 09:560.50SM 6200B
92647704008 RW-1
Benzene 330 ug/L 01/31/23 05:571.2SM 6200B
Diisopropyl ether 18.2 ug/L 01/31/23 05:571.2SM 6200B
Ethylbenzene 18.2 ug/L 01/31/23 05:571.2SM 6200B
Isopropylbenzene (Cumene)2.4 ug/L 01/31/23 05:571.2SM 6200B
Methyl-tert-butyl ether 6.1 ug/L 01/31/23 05:571.2SM 6200B
Naphthalene 39.1 ug/L 01/31/23 05:575.0SM 6200B
n-Propylbenzene 6.6 ug/L 01/31/23 05:571.2SM 6200B
Toluene 29.4 ug/L 01/31/23 05:571.2SM 6200B
1,2,4-Trimethylbenzene 12.0 ug/L 01/31/23 05:571.2SM 6200B
1,3,5-Trimethylbenzene 1.7 ug/L 01/31/23 05:571.2SM 6200B
m&p-Xylene 30.8 ug/L 01/31/23 05:572.5SM 6200B
o-Xylene 4.8 ug/L 01/31/23 05:571.2SM 6200B
92647704009 RW-2
Benzene 0.99 ug/L 01/31/23 02:530.50SM 6200B
Ethylbenzene 2.0 ug/L 01/31/23 02:530.50SM 6200B
Isopropylbenzene (Cumene)1.5 ug/L 01/31/23 02:530.50SM 6200B
n-Propylbenzene 0.82 ug/L 01/31/23 02:530.50SM 6200B
92647704010 RW-3
Benzene 7.5 ug/L 01/31/23 03:480.50SM 6200B
Ethylbenzene 10 ug/L 01/31/23 03:480.50SM 6200B
Isopropylbenzene (Cumene)1.9 ug/L 01/31/23 03:480.50SM 6200B
Naphthalene 12.9 ug/L 01/31/23 03:482.0SM 6200B
n-Propylbenzene 3.6 ug/L 01/31/23 03:480.50SM 6200B
Toluene 0.97 ug/L 01/31/23 03:480.50SM 6200B
1,2,4-Trimethylbenzene 3.5 ug/L 01/31/23 03:480.50SM 6200B
1,3,5-Trimethylbenzene 1.1 ug/L 01/31/23 03:480.50SM 6200B
m&p-Xylene 8.4 ug/L 01/31/23 03:481.0SM 6200B
o-Xylene 0.82 ug/L 01/31/23 03:480.50SM 6200B
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
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 5 of 40
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92647704
Former Thrifty Shop #1
Sample:MW-1 Lab ID:92647704001 Collected:01/18/23 09:20 Received:01/19/23 12:35 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
tert-Amyl Alcohol 2980 ug/L 01/31/23 08:06 75-85-4250025
tert-Amylmethyl ether ND ug/L 01/31/23 08:06 994-05-825025
Benzene 3440 ug/L 01/31/23 08:06 71-43-212.5 25
Bromobenzene ND ug/L 01/31/23 08:06 108-86-112.5 25
Bromochloromethane ND ug/L 01/31/23 08:06 74-97-512.5 25
Bromodichloromethane ND ug/L 01/31/23 08:06 75-27-412.5 25
Bromoform ND ug/L 01/31/23 08:06 75-25-212.5 25
Bromomethane ND ug/L 01/31/23 08:06 74-83-912525
tert-Butyl Alcohol ND ug/L 01/31/23 08:06 75-65-0125025
n-Butylbenzene ND ug/L 01/31/23 08:06 104-51-812.5 25
sec-Butylbenzene ND ug/L 01/31/23 08:06 135-98-812.5 25
tert-Butylbenzene ND ug/L 01/31/23 08:06 98-06-612.5 25
tert-Butyl Formate ND ug/L 01/31/23 08:06 762-75-4125025
Carbon tetrachloride ND ug/L 01/31/23 08:06 56-23-512.5 25
Chlorobenzene ND ug/L 01/31/23 08:06 108-90-712.5 25
Chloroethane ND ug/L 01/31/23 08:06 75-00-325.0 25
Chloroform ND ug/L 01/31/23 08:06 67-66-312.5 25
Chloromethane ND ug/L 01/31/23 08:06 74-87-325.0 25
2-Chlorotoluene ND ug/L 01/31/23 08:06 95-49-812.5 25
4-Chlorotoluene ND ug/L 01/31/23 08:06 106-43-412.5 25
1,2-Dibromo-3-chloropropane ND ug/L 01/31/23 08:06 96-12-825.0 25
Dibromochloromethane ND ug/L 01/31/23 08:06 124-48-112.5 25
1,2-Dibromoethane (EDB)ND ug/L 01/31/23 08:06 106-93-412.5 25
Dibromomethane ND ug/L 01/31/23 08:06 74-95-312.5 25
1,2-Dichlorobenzene ND ug/L 01/31/23 08:06 95-50-112.5 25
1,3-Dichlorobenzene ND ug/L 01/31/23 08:06 541-73-112.5 25
1,4-Dichlorobenzene ND ug/L 01/31/23 08:06 106-46-712.5 25
Dichlorodifluoromethane ND ug/L 01/31/23 08:06 75-71-812.5 25
1,1-Dichloroethane ND ug/L 01/31/23 08:06 75-34-312.5 25
1,2-Dichloroethane ND ug/L 01/31/23 08:06 107-06-212.5 25
1,1-Dichloroethene ND ug/L 01/31/23 08:06 75-35-412.5 25
cis-1,2-Dichloroethene ND ug/L 01/31/23 08:06 156-59-212.5 25
trans-1,2-Dichloroethene ND ug/L 01/31/23 08:06 156-60-512.5 25
1,2-Dichloropropane ND ug/L 01/31/23 08:06 78-87-512.5 25
1,3-Dichloropropane ND ug/L 01/31/23 08:06 142-28-912.5 25
2,2-Dichloropropane ND ug/L 01/31/23 08:06 594-20-712.5 25
1,1-Dichloropropene ND ug/L 01/31/23 08:06 563-58-612.5 25
cis-1,3-Dichloropropene ND ug/L 01/31/23 08:06 10061-01-512.5 25
trans-1,3-Dichloropropene ND ug/L 01/31/23 08:06 10061-02-612.5 25
Diisopropyl ether 271 ug/L 01/31/23 08:06 108-20-312.5 25
Ethanol ND ug/L 01/31/23 08:06 64-17-5500025
Ethylbenzene 375 ug/L 01/31/23 08:06 100-41-412.5 25
Ethyl-tert-butyl ether ND ug/L 01/31/23 08:06 637-92-325025
Hexachloro-1,3-butadiene ND ug/L 01/31/23 08:06 87-68-350.0 25
Isopropylbenzene (Cumene)ND ug/L 01/31/23 08:06 98-82-812.5 25
Methylene Chloride ND ug/L 01/31/23 08:06 75-09-250.0 25
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 02/01/2023 02:42 PM
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 6 of 40
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92647704
Former Thrifty Shop #1
Sample:MW-1 Lab ID:92647704001 Collected:01/18/23 09:20 Received:01/19/23 12:35 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Methyl-tert-butyl ether 115 ug/L 01/31/23 08:06 1634-04-412.5 25
Naphthalene 60.7 ug/L 01/31/23 08:06 91-20-350.0 25
n-Propylbenzene 24.5 ug/L 01/31/23 08:06 103-65-112.5 25
Styrene ND ug/L 01/31/23 08:06 100-42-512.5 25
1,1,1,2-Tetrachloroethane ND ug/L 01/31/23 08:06 630-20-612.5 25
1,1,2,2-Tetrachloroethane ND ug/L 01/31/23 08:06 79-34-512.5 25
Tetrachloroethene ND ug/L 01/31/23 08:06 127-18-412.5 25
Toluene 26.3 ug/L 01/31/23 08:06 108-88-312.5 25
1,2,3-Trichlorobenzene ND ug/L 01/31/23 08:06 87-61-650.0 25
1,2,4-Trichlorobenzene ND ug/L 01/31/23 08:06 120-82-150.0 25
1,1,1-Trichloroethane ND ug/L 01/31/23 08:06 71-55-612.5 25
1,1,2-Trichloroethane ND ug/L 01/31/23 08:06 79-00-512.5 25
Trichloroethene ND ug/L 01/31/23 08:06 79-01-612.5 25
Trichlorofluoromethane ND ug/L 01/31/23 08:06 75-69-425.0 25
1,2,3-Trichloropropane ND ug/L 01/31/23 08:06 96-18-412.5 25
1,2,4-Trimethylbenzene 205 ug/L 01/31/23 08:06 95-63-612.5 25
1,3,5-Trimethylbenzene ND ug/L 01/31/23 08:06 108-67-812.5 25
Vinyl chloride ND ug/L 01/31/23 08:06 75-01-425.0 25
m&p-Xylene 28.5 ug/L 01/31/23 08:06 179601-23-125.0 25
o-Xylene 60.0 ug/L 01/31/23 08:06 95-47-612.5 25
Surrogates
1,2-Dichloroethane-d4 (S)113 %01/31/23 08:06 17060-07-070-130 25
4-Bromofluorobenzene (S)101 %01/31/23 08:06 460-00-470-130 25
Toluene-d8 (S)100 %01/31/23 08:06 2037-26-570-130 25
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 02/01/2023 02:42 PM
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 7 of 40
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92647704
Former Thrifty Shop #1
Sample:MW-2 Lab ID:92647704002 Collected:01/18/23 09:10 Received:01/19/23 12:35 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
tert-Amyl Alcohol ND ug/L 01/25/23 17:44 75-85-41001
tert-Amylmethyl ether ND ug/L 01/25/23 17:44 994-05-810.0 1
Benzene ND ug/L 01/25/23 17:44 71-43-20.50 1
Bromobenzene ND ug/L 01/25/23 17:44 108-86-10.50 1
Bromochloromethane ND ug/L 01/25/23 17:44 74-97-50.50 1
Bromodichloromethane ND ug/L 01/25/23 17:44 75-27-40.50 1
Bromoform ND ug/L 01/25/23 17:44 75-25-20.50 1
Bromomethane ND ug/L 01/25/23 17:44 74-83-95.0 1
tert-Butyl Alcohol ND ug/L 01/25/23 17:44 75-65-0 M150.0 1
n-Butylbenzene ND ug/L 01/25/23 17:44 104-51-80.50 1
sec-Butylbenzene ND ug/L 01/25/23 17:44 135-98-80.50 1
tert-Butylbenzene ND ug/L 01/25/23 17:44 98-06-60.50 1
tert-Butyl Formate ND ug/L 01/25/23 17:44 762-75-4 M150.0 1
Carbon tetrachloride ND ug/L 01/25/23 17:44 56-23-50.50 1
Chlorobenzene ND ug/L 01/25/23 17:44 108-90-70.50 1
Chloroethane ND ug/L 01/25/23 17:44 75-00-31.0 1
Chloroform ND ug/L 01/25/23 17:44 67-66-30.50 1
Chloromethane ND ug/L 01/25/23 17:44 74-87-31.0 1
2-Chlorotoluene ND ug/L 01/25/23 17:44 95-49-80.50 1
4-Chlorotoluene ND ug/L 01/25/23 17:44 106-43-40.50 1
1,2-Dibromo-3-chloropropane ND ug/L 01/25/23 17:44 96-12-81.0 1
Dibromochloromethane ND ug/L 01/25/23 17:44 124-48-10.50 1
1,2-Dibromoethane (EDB)ND ug/L 01/25/23 17:44 106-93-40.50 1
Dibromomethane ND ug/L 01/25/23 17:44 74-95-30.50 1
1,2-Dichlorobenzene ND ug/L 01/25/23 17:44 95-50-10.50 1
1,3-Dichlorobenzene ND ug/L 01/25/23 17:44 541-73-10.50 1
1,4-Dichlorobenzene ND ug/L 01/25/23 17:44 106-46-70.50 1
Dichlorodifluoromethane ND ug/L 01/25/23 17:44 75-71-80.50 1
1,1-Dichloroethane ND ug/L 01/25/23 17:44 75-34-30.50 1
1,2-Dichloroethane ND ug/L 01/25/23 17:44 107-06-20.50 1
1,1-Dichloroethene ND ug/L 01/25/23 17:44 75-35-40.50 1
cis-1,2-Dichloroethene ND ug/L 01/25/23 17:44 156-59-20.50 1
trans-1,2-Dichloroethene ND ug/L 01/25/23 17:44 156-60-50.50 1
1,2-Dichloropropane ND ug/L 01/25/23 17:44 78-87-50.50 1
1,3-Dichloropropane ND ug/L 01/25/23 17:44 142-28-90.50 1
2,2-Dichloropropane ND ug/L 01/25/23 17:44 594-20-70.50 1
1,1-Dichloropropene ND ug/L 01/25/23 17:44 563-58-60.50 1
cis-1,3-Dichloropropene ND ug/L 01/25/23 17:44 10061-01-50.50 1
trans-1,3-Dichloropropene ND ug/L 01/25/23 17:44 10061-02-60.50 1
Diisopropyl ether ND ug/L 01/25/23 17:44 108-20-30.50 1
Ethanol ND ug/L 01/25/23 17:44 64-17-52001
Ethylbenzene ND ug/L 01/25/23 17:44 100-41-40.50 1
Ethyl-tert-butyl ether ND ug/L 01/25/23 17:44 637-92-310.0 1
Hexachloro-1,3-butadiene ND ug/L 01/25/23 17:44 87-68-32.0 1
Isopropylbenzene (Cumene)ND ug/L 01/25/23 17:44 98-82-80.50 1
Methylene Chloride ND ug/L 01/25/23 17:44 75-09-2 IH2.0 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 02/01/2023 02:42 PM
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 8 of 40
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92647704
Former Thrifty Shop #1
Sample:MW-2 Lab ID:92647704002 Collected:01/18/23 09:10 Received:01/19/23 12:35 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Methyl-tert-butyl ether ND ug/L 01/25/23 17:44 1634-04-40.50 1
Naphthalene ND ug/L 01/25/23 17:44 91-20-32.0 1
n-Propylbenzene ND ug/L 01/25/23 17:44 103-65-10.50 1
Styrene ND ug/L 01/25/23 17:44 100-42-50.50 1
1,1,1,2-Tetrachloroethane ND ug/L 01/25/23 17:44 630-20-60.50 1
1,1,2,2-Tetrachloroethane ND ug/L 01/25/23 17:44 79-34-50.50 1
Tetrachloroethene ND ug/L 01/25/23 17:44 127-18-40.50 1
Toluene ND ug/L 01/25/23 17:44 108-88-30.50 1
1,2,3-Trichlorobenzene ND ug/L 01/25/23 17:44 87-61-62.0 1
1,2,4-Trichlorobenzene ND ug/L 01/25/23 17:44 120-82-12.0 1
1,1,1-Trichloroethane ND ug/L 01/25/23 17:44 71-55-60.50 1
1,1,2-Trichloroethane ND ug/L 01/25/23 17:44 79-00-50.50 1
Trichloroethene ND ug/L 01/25/23 17:44 79-01-60.50 1
Trichlorofluoromethane ND ug/L 01/25/23 17:44 75-69-41.0 1
1,2,3-Trichloropropane ND ug/L 01/25/23 17:44 96-18-40.50 1
1,2,4-Trimethylbenzene ND ug/L 01/25/23 17:44 95-63-60.50 1
1,3,5-Trimethylbenzene ND ug/L 01/25/23 17:44 108-67-80.50 1
Vinyl chloride ND ug/L 01/25/23 17:44 75-01-41.0 1
m&p-Xylene ND ug/L 01/25/23 17:44 179601-23-11.0 1
o-Xylene ND ug/L 01/25/23 17:44 95-47-60.50 1
Surrogates
1,2-Dichloroethane-d4 (S)89 %01/25/23 17:44 17060-07-070-130 1
4-Bromofluorobenzene (S)101 %01/25/23 17:44 460-00-470-130 1
Toluene-d8 (S)104 %01/25/23 17:44 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: 02/01/2023 02:42 PM
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 9 of 40
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92647704
Former Thrifty Shop #1
Sample:MW-3 Lab ID:92647704003 Collected:01/18/23 08:55 Received:01/19/23 12:35 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
tert-Amyl Alcohol ND ug/L 01/25/23 18:01 75-85-41001
tert-Amylmethyl ether ND ug/L 01/25/23 18:01 994-05-810.0 1
Benzene ND ug/L 01/25/23 18:01 71-43-20.50 1
Bromobenzene ND ug/L 01/25/23 18:01 108-86-10.50 1
Bromochloromethane ND ug/L 01/25/23 18:01 74-97-50.50 1
Bromodichloromethane ND ug/L 01/25/23 18:01 75-27-40.50 1
Bromoform ND ug/L 01/25/23 18:01 75-25-20.50 1
Bromomethane ND ug/L 01/25/23 18:01 74-83-95.0 1
tert-Butyl Alcohol ND ug/L 01/25/23 18:01 75-65-050.0 1
n-Butylbenzene ND ug/L 01/25/23 18:01 104-51-80.50 1
sec-Butylbenzene 1.7 ug/L 01/25/23 18:01 135-98-80.50 1
tert-Butylbenzene 0.88 ug/L 01/25/23 18:01 98-06-60.50 1
tert-Butyl Formate ND ug/L 01/25/23 18:01 762-75-450.0 1
Carbon tetrachloride ND ug/L 01/25/23 18:01 56-23-50.50 1
Chlorobenzene ND ug/L 01/25/23 18:01 108-90-70.50 1
Chloroethane ND ug/L 01/25/23 18:01 75-00-31.0 1
Chloroform ND ug/L 01/25/23 18:01 67-66-30.50 1
Chloromethane ND ug/L 01/25/23 18:01 74-87-31.0 1
2-Chlorotoluene ND ug/L 01/25/23 18:01 95-49-80.50 1
4-Chlorotoluene ND ug/L 01/25/23 18:01 106-43-40.50 1
1,2-Dibromo-3-chloropropane ND ug/L 01/25/23 18:01 96-12-81.0 1
Dibromochloromethane ND ug/L 01/25/23 18:01 124-48-10.50 1
1,2-Dibromoethane (EDB)ND ug/L 01/25/23 18:01 106-93-40.50 1
Dibromomethane ND ug/L 01/25/23 18:01 74-95-30.50 1
1,2-Dichlorobenzene ND ug/L 01/25/23 18:01 95-50-10.50 1
1,3-Dichlorobenzene ND ug/L 01/25/23 18:01 541-73-10.50 1
1,4-Dichlorobenzene ND ug/L 01/25/23 18:01 106-46-70.50 1
Dichlorodifluoromethane ND ug/L 01/25/23 18:01 75-71-80.50 1
1,1-Dichloroethane ND ug/L 01/25/23 18:01 75-34-30.50 1
1,2-Dichloroethane ND ug/L 01/25/23 18:01 107-06-20.50 1
1,1-Dichloroethene ND ug/L 01/25/23 18:01 75-35-40.50 1
cis-1,2-Dichloroethene ND ug/L 01/25/23 18:01 156-59-20.50 1
trans-1,2-Dichloroethene ND ug/L 01/25/23 18:01 156-60-50.50 1
1,2-Dichloropropane ND ug/L 01/25/23 18:01 78-87-50.50 1
1,3-Dichloropropane ND ug/L 01/25/23 18:01 142-28-90.50 1
2,2-Dichloropropane ND ug/L 01/25/23 18:01 594-20-70.50 1
1,1-Dichloropropene ND ug/L 01/25/23 18:01 563-58-60.50 1
cis-1,3-Dichloropropene ND ug/L 01/25/23 18:01 10061-01-50.50 1
trans-1,3-Dichloropropene ND ug/L 01/25/23 18:01 10061-02-60.50 1
Diisopropyl ether ND ug/L 01/25/23 18:01 108-20-30.50 1
Ethanol ND ug/L 01/25/23 18:01 64-17-52001
Ethylbenzene 0.97 ug/L 01/25/23 18:01 100-41-40.50 1
Ethyl-tert-butyl ether ND ug/L 01/25/23 18:01 637-92-310.0 1
Hexachloro-1,3-butadiene ND ug/L 01/25/23 18:01 87-68-32.0 1
Isopropylbenzene (Cumene)1.8 ug/L 01/25/23 18:01 98-82-80.50 1
Methylene Chloride ND ug/L 01/25/23 18:01 75-09-2 IH2.0 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 02/01/2023 02:42 PM
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 10 of 40
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92647704
Former Thrifty Shop #1
Sample:MW-3 Lab ID:92647704003 Collected:01/18/23 08:55 Received:01/19/23 12:35 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Methyl-tert-butyl ether 1.4 ug/L 01/25/23 18:01 1634-04-40.50 1
Naphthalene ND ug/L 01/25/23 18:01 91-20-32.0 1
n-Propylbenzene 2.9 ug/L 01/25/23 18:01 103-65-10.50 1
Styrene ND ug/L 01/25/23 18:01 100-42-50.50 1
1,1,1,2-Tetrachloroethane ND ug/L 01/25/23 18:01 630-20-60.50 1
1,1,2,2-Tetrachloroethane ND ug/L 01/25/23 18:01 79-34-50.50 1
Tetrachloroethene ND ug/L 01/25/23 18:01 127-18-40.50 1
Toluene ND ug/L 01/25/23 18:01 108-88-30.50 1
1,2,3-Trichlorobenzene ND ug/L 01/25/23 18:01 87-61-62.0 1
1,2,4-Trichlorobenzene ND ug/L 01/25/23 18:01 120-82-12.0 1
1,1,1-Trichloroethane ND ug/L 01/25/23 18:01 71-55-60.50 1
1,1,2-Trichloroethane ND ug/L 01/25/23 18:01 79-00-50.50 1
Trichloroethene ND ug/L 01/25/23 18:01 79-01-60.50 1
Trichlorofluoromethane ND ug/L 01/25/23 18:01 75-69-41.0 1
1,2,3-Trichloropropane ND ug/L 01/25/23 18:01 96-18-40.50 1
1,2,4-Trimethylbenzene ND ug/L 01/25/23 18:01 95-63-60.50 1
1,3,5-Trimethylbenzene 0.85 ug/L 01/25/23 18:01 108-67-80.50 1
Vinyl chloride ND ug/L 01/25/23 18:01 75-01-41.0 1
m&p-Xylene ND ug/L 01/25/23 18:01 179601-23-11.0 1
o-Xylene ND ug/L 01/25/23 18:01 95-47-60.50 1
Surrogates
1,2-Dichloroethane-d4 (S)85 %01/25/23 18:01 17060-07-070-130 1
4-Bromofluorobenzene (S)97 %01/25/23 18:01 460-00-470-130 1
Toluene-d8 (S)100 %01/25/23 18:01 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: 02/01/2023 02:42 PM
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 11 of 40
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92647704
Former Thrifty Shop #1
Sample:MW-4 Lab ID:92647704004 Collected:01/18/23 08:40 Received:01/19/23 12:35 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
tert-Amyl Alcohol ND ug/L 01/25/23 18:19 75-85-41001
tert-Amylmethyl ether ND ug/L 01/25/23 18:19 994-05-810.0 1
Benzene ND ug/L 01/25/23 18:19 71-43-20.50 1
Bromobenzene ND ug/L 01/25/23 18:19 108-86-10.50 1
Bromochloromethane ND ug/L 01/25/23 18:19 74-97-50.50 1
Bromodichloromethane ND ug/L 01/25/23 18:19 75-27-40.50 1
Bromoform ND ug/L 01/25/23 18:19 75-25-20.50 1
Bromomethane ND ug/L 01/25/23 18:19 74-83-95.0 1
tert-Butyl Alcohol ND ug/L 01/25/23 18:19 75-65-050.0 1
n-Butylbenzene ND ug/L 01/25/23 18:19 104-51-80.50 1
sec-Butylbenzene 0.55 ug/L 01/25/23 18:19 135-98-80.50 1
tert-Butylbenzene ND ug/L 01/25/23 18:19 98-06-60.50 1
tert-Butyl Formate ND ug/L 01/25/23 18:19 762-75-450.0 1
Carbon tetrachloride ND ug/L 01/25/23 18:19 56-23-50.50 1
Chlorobenzene ND ug/L 01/25/23 18:19 108-90-70.50 1
Chloroethane ND ug/L 01/25/23 18:19 75-00-31.0 1
Chloroform ND ug/L 01/25/23 18:19 67-66-30.50 1
Chloromethane ND ug/L 01/25/23 18:19 74-87-31.0 1
2-Chlorotoluene ND ug/L 01/25/23 18:19 95-49-80.50 1
4-Chlorotoluene ND ug/L 01/25/23 18:19 106-43-40.50 1
1,2-Dibromo-3-chloropropane ND ug/L 01/25/23 18:19 96-12-81.0 1
Dibromochloromethane ND ug/L 01/25/23 18:19 124-48-10.50 1
1,2-Dibromoethane (EDB)ND ug/L 01/25/23 18:19 106-93-40.50 1
Dibromomethane ND ug/L 01/25/23 18:19 74-95-30.50 1
1,2-Dichlorobenzene ND ug/L 01/25/23 18:19 95-50-10.50 1
1,3-Dichlorobenzene ND ug/L 01/25/23 18:19 541-73-10.50 1
1,4-Dichlorobenzene ND ug/L 01/25/23 18:19 106-46-70.50 1
Dichlorodifluoromethane ND ug/L 01/25/23 18:19 75-71-80.50 1
1,1-Dichloroethane ND ug/L 01/25/23 18:19 75-34-30.50 1
1,2-Dichloroethane ND ug/L 01/25/23 18:19 107-06-20.50 1
1,1-Dichloroethene ND ug/L 01/25/23 18:19 75-35-40.50 1
cis-1,2-Dichloroethene ND ug/L 01/25/23 18:19 156-59-20.50 1
trans-1,2-Dichloroethene ND ug/L 01/25/23 18:19 156-60-50.50 1
1,2-Dichloropropane ND ug/L 01/25/23 18:19 78-87-50.50 1
1,3-Dichloropropane ND ug/L 01/25/23 18:19 142-28-90.50 1
2,2-Dichloropropane ND ug/L 01/25/23 18:19 594-20-70.50 1
1,1-Dichloropropene ND ug/L 01/25/23 18:19 563-58-60.50 1
cis-1,3-Dichloropropene ND ug/L 01/25/23 18:19 10061-01-50.50 1
trans-1,3-Dichloropropene ND ug/L 01/25/23 18:19 10061-02-60.50 1
Diisopropyl ether ND ug/L 01/25/23 18:19 108-20-30.50 1
Ethanol ND ug/L 01/25/23 18:19 64-17-52001
Ethylbenzene ND ug/L 01/25/23 18:19 100-41-40.50 1
Ethyl-tert-butyl ether ND ug/L 01/25/23 18:19 637-92-310.0 1
Hexachloro-1,3-butadiene ND ug/L 01/25/23 18:19 87-68-32.0 1
Isopropylbenzene (Cumene)ND ug/L 01/25/23 18:19 98-82-80.50 1
Methylene Chloride ND ug/L 01/25/23 18:19 75-09-2 IH2.0 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 02/01/2023 02:42 PM
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 12 of 40
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92647704
Former Thrifty Shop #1
Sample:MW-4 Lab ID:92647704004 Collected:01/18/23 08:40 Received:01/19/23 12:35 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Methyl-tert-butyl ether ND ug/L 01/25/23 18:19 1634-04-40.50 1
Naphthalene ND ug/L 01/25/23 18:19 91-20-32.0 1
n-Propylbenzene ND ug/L 01/25/23 18:19 103-65-10.50 1
Styrene ND ug/L 01/25/23 18:19 100-42-50.50 1
1,1,1,2-Tetrachloroethane ND ug/L 01/25/23 18:19 630-20-60.50 1
1,1,2,2-Tetrachloroethane ND ug/L 01/25/23 18:19 79-34-50.50 1
Tetrachloroethene ND ug/L 01/25/23 18:19 127-18-40.50 1
Toluene ND ug/L 01/25/23 18:19 108-88-30.50 1
1,2,3-Trichlorobenzene ND ug/L 01/25/23 18:19 87-61-62.0 1
1,2,4-Trichlorobenzene ND ug/L 01/25/23 18:19 120-82-12.0 1
1,1,1-Trichloroethane ND ug/L 01/25/23 18:19 71-55-60.50 1
1,1,2-Trichloroethane ND ug/L 01/25/23 18:19 79-00-50.50 1
Trichloroethene ND ug/L 01/25/23 18:19 79-01-60.50 1
Trichlorofluoromethane ND ug/L 01/25/23 18:19 75-69-41.0 1
1,2,3-Trichloropropane ND ug/L 01/25/23 18:19 96-18-40.50 1
1,2,4-Trimethylbenzene ND ug/L 01/25/23 18:19 95-63-60.50 1
1,3,5-Trimethylbenzene ND ug/L 01/25/23 18:19 108-67-80.50 1
Vinyl chloride ND ug/L 01/25/23 18:19 75-01-41.0 1
m&p-Xylene ND ug/L 01/25/23 18:19 179601-23-11.0 1
o-Xylene ND ug/L 01/25/23 18:19 95-47-60.50 1
Surrogates
1,2-Dichloroethane-d4 (S)81 %01/25/23 18:19 17060-07-070-130 1
4-Bromofluorobenzene (S)100 %01/25/23 18:19 460-00-470-130 1
Toluene-d8 (S)105 %01/25/23 18:19 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: 02/01/2023 02:42 PM
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 13 of 40
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92647704
Former Thrifty Shop #1
Sample:MW-5 Lab ID:92647704005 Collected:01/18/23 11:35 Received:01/19/23 12:35 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
tert-Amyl Alcohol ND ug/L 01/25/23 18:37 75-85-41001
tert-Amylmethyl ether ND ug/L 01/25/23 18:37 994-05-810.0 1
Benzene ND ug/L 01/25/23 18:37 71-43-20.50 1
Bromobenzene ND ug/L 01/25/23 18:37 108-86-10.50 1
Bromochloromethane ND ug/L 01/25/23 18:37 74-97-50.50 1
Bromodichloromethane ND ug/L 01/25/23 18:37 75-27-40.50 1
Bromoform ND ug/L 01/25/23 18:37 75-25-20.50 1
Bromomethane ND ug/L 01/25/23 18:37 74-83-95.0 1
tert-Butyl Alcohol ND ug/L 01/25/23 18:37 75-65-050.0 1
n-Butylbenzene ND ug/L 01/25/23 18:37 104-51-80.50 1
sec-Butylbenzene ND ug/L 01/25/23 18:37 135-98-80.50 1
tert-Butylbenzene ND ug/L 01/25/23 18:37 98-06-60.50 1
tert-Butyl Formate ND ug/L 01/25/23 18:37 762-75-450.0 1
Carbon tetrachloride ND ug/L 01/25/23 18:37 56-23-50.50 1
Chlorobenzene ND ug/L 01/25/23 18:37 108-90-70.50 1
Chloroethane ND ug/L 01/25/23 18:37 75-00-31.0 1
Chloroform ND ug/L 01/25/23 18:37 67-66-30.50 1
Chloromethane ND ug/L 01/25/23 18:37 74-87-31.0 1
2-Chlorotoluene ND ug/L 01/25/23 18:37 95-49-80.50 1
4-Chlorotoluene ND ug/L 01/25/23 18:37 106-43-40.50 1
1,2-Dibromo-3-chloropropane ND ug/L 01/25/23 18:37 96-12-81.0 1
Dibromochloromethane ND ug/L 01/25/23 18:37 124-48-10.50 1
1,2-Dibromoethane (EDB)ND ug/L 01/25/23 18:37 106-93-40.50 1
Dibromomethane ND ug/L 01/25/23 18:37 74-95-30.50 1
1,2-Dichlorobenzene ND ug/L 01/25/23 18:37 95-50-10.50 1
1,3-Dichlorobenzene ND ug/L 01/25/23 18:37 541-73-10.50 1
1,4-Dichlorobenzene ND ug/L 01/25/23 18:37 106-46-70.50 1
Dichlorodifluoromethane ND ug/L 01/25/23 18:37 75-71-80.50 1
1,1-Dichloroethane ND ug/L 01/25/23 18:37 75-34-30.50 1
1,2-Dichloroethane ND ug/L 01/25/23 18:37 107-06-20.50 1
1,1-Dichloroethene ND ug/L 01/25/23 18:37 75-35-40.50 1
cis-1,2-Dichloroethene ND ug/L 01/25/23 18:37 156-59-20.50 1
trans-1,2-Dichloroethene ND ug/L 01/25/23 18:37 156-60-50.50 1
1,2-Dichloropropane ND ug/L 01/25/23 18:37 78-87-50.50 1
1,3-Dichloropropane ND ug/L 01/25/23 18:37 142-28-90.50 1
2,2-Dichloropropane ND ug/L 01/25/23 18:37 594-20-70.50 1
1,1-Dichloropropene ND ug/L 01/25/23 18:37 563-58-60.50 1
cis-1,3-Dichloropropene ND ug/L 01/25/23 18:37 10061-01-50.50 1
trans-1,3-Dichloropropene ND ug/L 01/25/23 18:37 10061-02-60.50 1
Diisopropyl ether ND ug/L 01/25/23 18:37 108-20-30.50 1
Ethanol ND ug/L 01/25/23 18:37 64-17-52001
Ethylbenzene ND ug/L 01/25/23 18:37 100-41-40.50 1
Ethyl-tert-butyl ether ND ug/L 01/25/23 18:37 637-92-310.0 1
Hexachloro-1,3-butadiene ND ug/L 01/25/23 18:37 87-68-32.0 1
Isopropylbenzene (Cumene)ND ug/L 01/25/23 18:37 98-82-80.50 1
Methylene Chloride ND ug/L 01/25/23 18:37 75-09-2 IH2.0 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 02/01/2023 02:42 PM
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 14 of 40
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92647704
Former Thrifty Shop #1
Sample:MW-5 Lab ID:92647704005 Collected:01/18/23 11:35 Received:01/19/23 12:35 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Methyl-tert-butyl ether ND ug/L 01/25/23 18:37 1634-04-40.50 1
Naphthalene ND ug/L 01/25/23 18:37 91-20-32.0 1
n-Propylbenzene ND ug/L 01/25/23 18:37 103-65-10.50 1
Styrene ND ug/L 01/25/23 18:37 100-42-50.50 1
1,1,1,2-Tetrachloroethane ND ug/L 01/25/23 18:37 630-20-60.50 1
1,1,2,2-Tetrachloroethane ND ug/L 01/25/23 18:37 79-34-50.50 1
Tetrachloroethene ND ug/L 01/25/23 18:37 127-18-40.50 1
Toluene ND ug/L 01/25/23 18:37 108-88-30.50 1
1,2,3-Trichlorobenzene ND ug/L 01/25/23 18:37 87-61-62.0 1
1,2,4-Trichlorobenzene ND ug/L 01/25/23 18:37 120-82-12.0 1
1,1,1-Trichloroethane ND ug/L 01/25/23 18:37 71-55-60.50 1
1,1,2-Trichloroethane ND ug/L 01/25/23 18:37 79-00-50.50 1
Trichloroethene ND ug/L 01/25/23 18:37 79-01-60.50 1
Trichlorofluoromethane ND ug/L 01/25/23 18:37 75-69-41.0 1
1,2,3-Trichloropropane ND ug/L 01/25/23 18:37 96-18-40.50 1
1,2,4-Trimethylbenzene ND ug/L 01/25/23 18:37 95-63-60.50 1
1,3,5-Trimethylbenzene ND ug/L 01/25/23 18:37 108-67-80.50 1
Vinyl chloride ND ug/L 01/25/23 18:37 75-01-41.0 1
m&p-Xylene ND ug/L 01/25/23 18:37 179601-23-11.0 1
o-Xylene ND ug/L 01/25/23 18:37 95-47-60.50 1
Surrogates
1,2-Dichloroethane-d4 (S)86 %01/25/23 18:37 17060-07-070-130 1
4-Bromofluorobenzene (S)100 %01/25/23 18:37 460-00-470-130 1
Toluene-d8 (S)102 %01/25/23 18:37 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: 02/01/2023 02:42 PM
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 15 of 40
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92647704
Former Thrifty Shop #1
Sample:MW-6 Lab ID:92647704006 Collected:01/18/23 10:00 Received:01/19/23 12:35 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
tert-Amyl Alcohol ND ug/L 01/31/23 03:30 75-85-41001
tert-Amylmethyl ether ND ug/L 01/31/23 03:30 994-05-810.0 1
Benzene 13.0 ug/L 01/31/23 03:30 71-43-20.50 1
Bromobenzene ND ug/L 01/31/23 03:30 108-86-10.50 1
Bromochloromethane ND ug/L 01/31/23 03:30 74-97-50.50 1
Bromodichloromethane ND ug/L 01/31/23 03:30 75-27-40.50 1
Bromoform ND ug/L 01/31/23 03:30 75-25-20.50 1
Bromomethane ND ug/L 01/31/23 03:30 74-83-95.0 1
tert-Butyl Alcohol ND ug/L 01/31/23 03:30 75-65-050.0 1
n-Butylbenzene ND ug/L 01/31/23 03:30 104-51-80.50 1
sec-Butylbenzene ND ug/L 01/31/23 03:30 135-98-80.50 1
tert-Butylbenzene ND ug/L 01/31/23 03:30 98-06-60.50 1
tert-Butyl Formate ND ug/L 01/31/23 03:30 762-75-450.0 1
Carbon tetrachloride ND ug/L 01/31/23 03:30 56-23-50.50 1
Chlorobenzene ND ug/L 01/31/23 03:30 108-90-70.50 1
Chloroethane ND ug/L 01/31/23 03:30 75-00-31.0 1
Chloroform ND ug/L 01/31/23 03:30 67-66-30.50 1
Chloromethane ND ug/L 01/31/23 03:30 74-87-31.0 1
2-Chlorotoluene ND ug/L 01/31/23 03:30 95-49-80.50 1
4-Chlorotoluene ND ug/L 01/31/23 03:30 106-43-40.50 1
1,2-Dibromo-3-chloropropane ND ug/L 01/31/23 03:30 96-12-81.0 1
Dibromochloromethane ND ug/L 01/31/23 03:30 124-48-10.50 1
1,2-Dibromoethane (EDB)ND ug/L 01/31/23 03:30 106-93-40.50 1
Dibromomethane ND ug/L 01/31/23 03:30 74-95-30.50 1
1,2-Dichlorobenzene ND ug/L 01/31/23 03:30 95-50-10.50 1
1,3-Dichlorobenzene ND ug/L 01/31/23 03:30 541-73-10.50 1
1,4-Dichlorobenzene 0.57 ug/L 01/31/23 03:30 106-46-70.50 1
Dichlorodifluoromethane ND ug/L 01/31/23 03:30 75-71-80.50 1
1,1-Dichloroethane ND ug/L 01/31/23 03:30 75-34-30.50 1
1,2-Dichloroethane ND ug/L 01/31/23 03:30 107-06-20.50 1
1,1-Dichloroethene ND ug/L 01/31/23 03:30 75-35-40.50 1
cis-1,2-Dichloroethene ND ug/L 01/31/23 03:30 156-59-20.50 1
trans-1,2-Dichloroethene ND ug/L 01/31/23 03:30 156-60-50.50 1
1,2-Dichloropropane ND ug/L 01/31/23 03:30 78-87-50.50 1
1,3-Dichloropropane ND ug/L 01/31/23 03:30 142-28-90.50 1
2,2-Dichloropropane ND ug/L 01/31/23 03:30 594-20-70.50 1
1,1-Dichloropropene ND ug/L 01/31/23 03:30 563-58-60.50 1
cis-1,3-Dichloropropene ND ug/L 01/31/23 03:30 10061-01-50.50 1
trans-1,3-Dichloropropene ND ug/L 01/31/23 03:30 10061-02-60.50 1
Diisopropyl ether ND ug/L 01/31/23 03:30 108-20-30.50 1
Ethanol ND ug/L 01/31/23 03:30 64-17-52001
Ethylbenzene 118 ug/L 01/31/23 03:30 100-41-40.50 1
Ethyl-tert-butyl ether ND ug/L 01/31/23 03:30 637-92-310.0 1
Hexachloro-1,3-butadiene ND ug/L 01/31/23 03:30 87-68-32.0 1
Isopropylbenzene (Cumene)41.9 ug/L 01/31/23 03:30 98-82-80.50 1
Methylene Chloride ND ug/L 01/31/23 03:30 75-09-22.0 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 02/01/2023 02:42 PM
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 16 of 40
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92647704
Former Thrifty Shop #1
Sample:MW-6 Lab ID:92647704006 Collected:01/18/23 10:00 Received:01/19/23 12:35 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Methyl-tert-butyl ether ND ug/L 01/31/23 03:30 1634-04-40.50 1
Naphthalene 5.8 ug/L 01/31/23 03:30 91-20-32.0 1
n-Propylbenzene 129 ug/L 01/31/23 03:30 103-65-10.50 1
Styrene ND ug/L 01/31/23 03:30 100-42-50.50 1
1,1,1,2-Tetrachloroethane ND ug/L 01/31/23 03:30 630-20-60.50 1
1,1,2,2-Tetrachloroethane ND ug/L 01/31/23 03:30 79-34-50.50 1
Tetrachloroethene ND ug/L 01/31/23 03:30 127-18-40.50 1
Toluene 10.2 ug/L 01/31/23 03:30 108-88-30.50 1
1,2,3-Trichlorobenzene ND ug/L 01/31/23 03:30 87-61-62.0 1
1,2,4-Trichlorobenzene ND ug/L 01/31/23 03:30 120-82-12.0 1
1,1,1-Trichloroethane ND ug/L 01/31/23 03:30 71-55-60.50 1
1,1,2-Trichloroethane ND ug/L 01/31/23 03:30 79-00-50.50 1
Trichloroethene ND ug/L 01/31/23 03:30 79-01-60.50 1
Trichlorofluoromethane ND ug/L 01/31/23 03:30 75-69-41.0 1
1,2,3-Trichloropropane ND ug/L 01/31/23 03:30 96-18-40.50 1
1,2,4-Trimethylbenzene 18.1 ug/L 01/31/23 03:30 95-63-60.50 1
1,3,5-Trimethylbenzene 12.4 ug/L 01/31/23 03:30 108-67-80.50 1
Vinyl chloride ND ug/L 01/31/23 03:30 75-01-41.0 1
m&p-Xylene 61.5 ug/L 01/31/23 03:30 179601-23-11.0 1
o-Xylene 7.0 ug/L 01/31/23 03:30 95-47-60.50 1
Surrogates
1,2-Dichloroethane-d4 (S)119 %01/31/23 03:30 17060-07-070-130 1
4-Bromofluorobenzene (S)105 %01/31/23 03:30 460-00-470-130 1
Toluene-d8 (S)98 %01/31/23 03:30 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: 02/01/2023 02:42 PM
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 17 of 40
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92647704
Former Thrifty Shop #1
Sample:MW-7 Lab ID:92647704007 Collected:01/18/23 11:30 Received:01/19/23 12:35 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
tert-Amyl Alcohol ND ug/L 01/31/23 09:56 75-85-41001
tert-Amylmethyl ether ND ug/L 01/31/23 09:56 994-05-810.0 1
Benzene 186 ug/L 01/31/23 09:56 71-43-20.50 1
Bromobenzene ND ug/L 01/31/23 09:56 108-86-10.50 1
Bromochloromethane ND ug/L 01/31/23 09:56 74-97-50.50 1
Bromodichloromethane ND ug/L 01/31/23 09:56 75-27-40.50 1
Bromoform ND ug/L 01/31/23 09:56 75-25-20.50 1
Bromomethane ND ug/L 01/31/23 09:56 74-83-95.0 1
tert-Butyl Alcohol ND ug/L 01/31/23 09:56 75-65-050.0 1
n-Butylbenzene ND ug/L 01/31/23 09:56 104-51-80.50 1
sec-Butylbenzene ND ug/L 01/31/23 09:56 135-98-80.50 1
tert-Butylbenzene ND ug/L 01/31/23 09:56 98-06-60.50 1
tert-Butyl Formate ND ug/L 01/31/23 09:56 762-75-450.0 1
Carbon tetrachloride ND ug/L 01/31/23 09:56 56-23-50.50 1
Chlorobenzene ND ug/L 01/31/23 09:56 108-90-70.50 1
Chloroethane ND ug/L 01/31/23 09:56 75-00-31.0 1
Chloroform ND ug/L 01/31/23 09:56 67-66-30.50 1
Chloromethane ND ug/L 01/31/23 09:56 74-87-31.0 1
2-Chlorotoluene ND ug/L 01/31/23 09:56 95-49-80.50 1
4-Chlorotoluene ND ug/L 01/31/23 09:56 106-43-40.50 1
1,2-Dibromo-3-chloropropane ND ug/L 01/31/23 09:56 96-12-81.0 1
Dibromochloromethane ND ug/L 01/31/23 09:56 124-48-10.50 1
1,2-Dibromoethane (EDB)ND ug/L 01/31/23 09:56 106-93-40.50 1
Dibromomethane ND ug/L 01/31/23 09:56 74-95-30.50 1
1,2-Dichlorobenzene ND ug/L 01/31/23 09:56 95-50-10.50 1
1,3-Dichlorobenzene ND ug/L 01/31/23 09:56 541-73-10.50 1
1,4-Dichlorobenzene ND ug/L 01/31/23 09:56 106-46-70.50 1
Dichlorodifluoromethane ND ug/L 01/31/23 09:56 75-71-80.50 1
1,1-Dichloroethane ND ug/L 01/31/23 09:56 75-34-30.50 1
1,2-Dichloroethane ND ug/L 01/31/23 09:56 107-06-20.50 1
1,1-Dichloroethene ND ug/L 01/31/23 09:56 75-35-40.50 1
cis-1,2-Dichloroethene ND ug/L 01/31/23 09:56 156-59-20.50 1
trans-1,2-Dichloroethene ND ug/L 01/31/23 09:56 156-60-50.50 1
1,2-Dichloropropane ND ug/L 01/31/23 09:56 78-87-50.50 1
1,3-Dichloropropane ND ug/L 01/31/23 09:56 142-28-90.50 1
2,2-Dichloropropane ND ug/L 01/31/23 09:56 594-20-70.50 1
1,1-Dichloropropene ND ug/L 01/31/23 09:56 563-58-60.50 1
cis-1,3-Dichloropropene ND ug/L 01/31/23 09:56 10061-01-50.50 1
trans-1,3-Dichloropropene ND ug/L 01/31/23 09:56 10061-02-60.50 1
Diisopropyl ether 6.2 ug/L 01/31/23 09:56 108-20-30.50 1
Ethanol ND ug/L 01/31/23 09:56 64-17-52001
Ethylbenzene 98.9 ug/L 01/31/23 09:56 100-41-40.50 1
Ethyl-tert-butyl ether ND ug/L 01/31/23 09:56 637-92-310.0 1
Hexachloro-1,3-butadiene ND ug/L 01/31/23 09:56 87-68-32.0 1
Isopropylbenzene (Cumene)6.6 ug/L 01/31/23 09:56 98-82-80.50 1
Methylene Chloride ND ug/L 01/31/23 09:56 75-09-22.0 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 02/01/2023 02:42 PM
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 18 of 40
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92647704
Former Thrifty Shop #1
Sample:MW-7 Lab ID:92647704007 Collected:01/18/23 11:30 Received:01/19/23 12:35 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Methyl-tert-butyl ether 10.9 ug/L 01/31/23 09:56 1634-04-40.50 1
Naphthalene 27.3 ug/L 01/31/23 09:56 91-20-32.0 1
n-Propylbenzene 12.5 ug/L 01/31/23 09:56 103-65-10.50 1
Styrene ND ug/L 01/31/23 09:56 100-42-50.50 1
1,1,1,2-Tetrachloroethane ND ug/L 01/31/23 09:56 630-20-60.50 1
1,1,2,2-Tetrachloroethane ND ug/L 01/31/23 09:56 79-34-50.50 1
Tetrachloroethene ND ug/L 01/31/23 09:56 127-18-40.50 1
Toluene 3.0 ug/L 01/31/23 09:56 108-88-30.50 1
1,2,3-Trichlorobenzene ND ug/L 01/31/23 09:56 87-61-62.0 1
1,2,4-Trichlorobenzene ND ug/L 01/31/23 09:56 120-82-12.0 1
1,1,1-Trichloroethane ND ug/L 01/31/23 09:56 71-55-60.50 1
1,1,2-Trichloroethane ND ug/L 01/31/23 09:56 79-00-50.50 1
Trichloroethene ND ug/L 01/31/23 09:56 79-01-60.50 1
Trichlorofluoromethane ND ug/L 01/31/23 09:56 75-69-41.0 1
1,2,3-Trichloropropane ND ug/L 01/31/23 09:56 96-18-40.50 1
1,2,4-Trimethylbenzene 57.1 ug/L 01/31/23 09:56 95-63-60.50 1
1,3,5-Trimethylbenzene 11.9 ug/L 01/31/23 09:56 108-67-80.50 1
Vinyl chloride ND ug/L 01/31/23 09:56 75-01-41.0 1
m&p-Xylene 365 ug/L 01/31/23 09:56 179601-23-11.0 1
o-Xylene 1.4 ug/L 01/31/23 09:56 95-47-60.50 1
Surrogates
1,2-Dichloroethane-d4 (S)107 %01/31/23 09:56 17060-07-070-130 1
4-Bromofluorobenzene (S)100 %01/31/23 09:56 460-00-470-130 1
Toluene-d8 (S)105 %01/31/23 09:56 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: 02/01/2023 02:42 PM
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 19 of 40
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92647704
Former Thrifty Shop #1
Sample:RW-1 Lab ID:92647704008 Collected:01/18/23 12:00 Received:01/19/23 12:35 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
tert-Amyl Alcohol ND ug/L 01/31/23 05:57 75-85-42502.5
tert-Amylmethyl ether ND ug/L 01/31/23 05:57 994-05-825.0 2.5
Benzene 330 ug/L 01/31/23 05:57 71-43-21.2 2.5
Bromobenzene ND ug/L 01/31/23 05:57 108-86-11.2 2.5
Bromochloromethane ND ug/L 01/31/23 05:57 74-97-51.2 2.5
Bromodichloromethane ND ug/L 01/31/23 05:57 75-27-41.2 2.5
Bromoform ND ug/L 01/31/23 05:57 75-25-21.2 2.5
Bromomethane ND ug/L 01/31/23 05:57 74-83-912.5 2.5
tert-Butyl Alcohol ND ug/L 01/31/23 05:57 75-65-01252.5
n-Butylbenzene ND ug/L 01/31/23 05:57 104-51-81.2 2.5
sec-Butylbenzene ND ug/L 01/31/23 05:57 135-98-81.2 2.5
tert-Butylbenzene ND ug/L 01/31/23 05:57 98-06-61.2 2.5
tert-Butyl Formate ND ug/L 01/31/23 05:57 762-75-41252.5
Carbon tetrachloride ND ug/L 01/31/23 05:57 56-23-51.2 2.5
Chlorobenzene ND ug/L 01/31/23 05:57 108-90-71.2 2.5
Chloroethane ND ug/L 01/31/23 05:57 75-00-32.5 2.5
Chloroform ND ug/L 01/31/23 05:57 67-66-31.2 2.5
Chloromethane ND ug/L 01/31/23 05:57 74-87-32.5 2.5
2-Chlorotoluene ND ug/L 01/31/23 05:57 95-49-81.2 2.5
4-Chlorotoluene ND ug/L 01/31/23 05:57 106-43-41.2 2.5
1,2-Dibromo-3-chloropropane ND ug/L 01/31/23 05:57 96-12-82.5 2.5
Dibromochloromethane ND ug/L 01/31/23 05:57 124-48-11.2 2.5
1,2-Dibromoethane (EDB)ND ug/L 01/31/23 05:57 106-93-41.2 2.5
Dibromomethane ND ug/L 01/31/23 05:57 74-95-31.2 2.5
1,2-Dichlorobenzene ND ug/L 01/31/23 05:57 95-50-11.2 2.5
1,3-Dichlorobenzene ND ug/L 01/31/23 05:57 541-73-11.2 2.5
1,4-Dichlorobenzene ND ug/L 01/31/23 05:57 106-46-71.2 2.5
Dichlorodifluoromethane ND ug/L 01/31/23 05:57 75-71-81.2 2.5
1,1-Dichloroethane ND ug/L 01/31/23 05:57 75-34-31.2 2.5
1,2-Dichloroethane ND ug/L 01/31/23 05:57 107-06-21.2 2.5
1,1-Dichloroethene ND ug/L 01/31/23 05:57 75-35-41.2 2.5
cis-1,2-Dichloroethene ND ug/L 01/31/23 05:57 156-59-21.2 2.5
trans-1,2-Dichloroethene ND ug/L 01/31/23 05:57 156-60-51.2 2.5
1,2-Dichloropropane ND ug/L 01/31/23 05:57 78-87-51.2 2.5
1,3-Dichloropropane ND ug/L 01/31/23 05:57 142-28-91.2 2.5
2,2-Dichloropropane ND ug/L 01/31/23 05:57 594-20-71.2 2.5
1,1-Dichloropropene ND ug/L 01/31/23 05:57 563-58-61.2 2.5
cis-1,3-Dichloropropene ND ug/L 01/31/23 05:57 10061-01-51.2 2.5
trans-1,3-Dichloropropene ND ug/L 01/31/23 05:57 10061-02-61.2 2.5
Diisopropyl ether 18.2 ug/L 01/31/23 05:57 108-20-31.2 2.5
Ethanol ND ug/L 01/31/23 05:57 64-17-55002.5
Ethylbenzene 18.2 ug/L 01/31/23 05:57 100-41-41.2 2.5
Ethyl-tert-butyl ether ND ug/L 01/31/23 05:57 637-92-325.0 2.5
Hexachloro-1,3-butadiene ND ug/L 01/31/23 05:57 87-68-35.0 2.5
Isopropylbenzene (Cumene)2.4 ug/L 01/31/23 05:57 98-82-81.2 2.5
Methylene Chloride ND ug/L 01/31/23 05:57 75-09-25.0 2.5
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 02/01/2023 02:42 PM
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 20 of 40
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92647704
Former Thrifty Shop #1
Sample:RW-1 Lab ID:92647704008 Collected:01/18/23 12:00 Received:01/19/23 12:35 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Methyl-tert-butyl ether 6.1 ug/L 01/31/23 05:57 1634-04-41.2 2.5
Naphthalene 39.1 ug/L 01/31/23 05:57 91-20-35.0 2.5
n-Propylbenzene 6.6 ug/L 01/31/23 05:57 103-65-11.2 2.5
Styrene ND ug/L 01/31/23 05:57 100-42-51.2 2.5
1,1,1,2-Tetrachloroethane ND ug/L 01/31/23 05:57 630-20-61.2 2.5
1,1,2,2-Tetrachloroethane ND ug/L 01/31/23 05:57 79-34-51.2 2.5
Tetrachloroethene ND ug/L 01/31/23 05:57 127-18-41.2 2.5
Toluene 29.4 ug/L 01/31/23 05:57 108-88-31.2 2.5
1,2,3-Trichlorobenzene ND ug/L 01/31/23 05:57 87-61-65.0 2.5
1,2,4-Trichlorobenzene ND ug/L 01/31/23 05:57 120-82-15.0 2.5
1,1,1-Trichloroethane ND ug/L 01/31/23 05:57 71-55-61.2 2.5
1,1,2-Trichloroethane ND ug/L 01/31/23 05:57 79-00-51.2 2.5
Trichloroethene ND ug/L 01/31/23 05:57 79-01-61.2 2.5
Trichlorofluoromethane ND ug/L 01/31/23 05:57 75-69-42.5 2.5
1,2,3-Trichloropropane ND ug/L 01/31/23 05:57 96-18-41.2 2.5
1,2,4-Trimethylbenzene 12.0 ug/L 01/31/23 05:57 95-63-61.2 2.5
1,3,5-Trimethylbenzene 1.7 ug/L 01/31/23 05:57 108-67-81.2 2.5
Vinyl chloride ND ug/L 01/31/23 05:57 75-01-42.5 2.5
m&p-Xylene 30.8 ug/L 01/31/23 05:57 179601-23-12.5 2.5
o-Xylene 4.8 ug/L 01/31/23 05:57 95-47-61.2 2.5
Surrogates
1,2-Dichloroethane-d4 (S)113 %01/31/23 05:57 17060-07-070-130 2.5
4-Bromofluorobenzene (S)102 %01/31/23 05:57 460-00-470-130 2.5
Toluene-d8 (S)99 %01/31/23 05:57 2037-26-570-130 2.5
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 02/01/2023 02:42 PM
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 21 of 40
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92647704
Former Thrifty Shop #1
Sample:RW-2 Lab ID:92647704009 Collected:01/18/23 10:35 Received:01/19/23 12:35 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
tert-Amyl Alcohol ND ug/L 01/31/23 02:53 75-85-41001
tert-Amylmethyl ether ND ug/L 01/31/23 02:53 994-05-810.0 1
Benzene 0.99 ug/L 01/31/23 02:53 71-43-20.50 1
Bromobenzene ND ug/L 01/31/23 02:53 108-86-10.50 1
Bromochloromethane ND ug/L 01/31/23 02:53 74-97-50.50 1
Bromodichloromethane ND ug/L 01/31/23 02:53 75-27-40.50 1
Bromoform ND ug/L 01/31/23 02:53 75-25-20.50 1
Bromomethane ND ug/L 01/31/23 02:53 74-83-95.0 1
tert-Butyl Alcohol ND ug/L 01/31/23 02:53 75-65-050.0 1
n-Butylbenzene ND ug/L 01/31/23 02:53 104-51-80.50 1
sec-Butylbenzene ND ug/L 01/31/23 02:53 135-98-80.50 1
tert-Butylbenzene ND ug/L 01/31/23 02:53 98-06-60.50 1
tert-Butyl Formate ND ug/L 01/31/23 02:53 762-75-450.0 1
Carbon tetrachloride ND ug/L 01/31/23 02:53 56-23-50.50 1
Chlorobenzene ND ug/L 01/31/23 02:53 108-90-70.50 1
Chloroethane ND ug/L 01/31/23 02:53 75-00-31.0 1
Chloroform ND ug/L 01/31/23 02:53 67-66-30.50 1
Chloromethane ND ug/L 01/31/23 02:53 74-87-31.0 1
2-Chlorotoluene ND ug/L 01/31/23 02:53 95-49-80.50 1
4-Chlorotoluene ND ug/L 01/31/23 02:53 106-43-40.50 1
1,2-Dibromo-3-chloropropane ND ug/L 01/31/23 02:53 96-12-81.0 1
Dibromochloromethane ND ug/L 01/31/23 02:53 124-48-10.50 1
1,2-Dibromoethane (EDB)ND ug/L 01/31/23 02:53 106-93-40.50 1
Dibromomethane ND ug/L 01/31/23 02:53 74-95-30.50 1
1,2-Dichlorobenzene ND ug/L 01/31/23 02:53 95-50-10.50 1
1,3-Dichlorobenzene ND ug/L 01/31/23 02:53 541-73-10.50 1
1,4-Dichlorobenzene ND ug/L 01/31/23 02:53 106-46-70.50 1
Dichlorodifluoromethane ND ug/L 01/31/23 02:53 75-71-80.50 1
1,1-Dichloroethane ND ug/L 01/31/23 02:53 75-34-30.50 1
1,2-Dichloroethane ND ug/L 01/31/23 02:53 107-06-20.50 1
1,1-Dichloroethene ND ug/L 01/31/23 02:53 75-35-40.50 1
cis-1,2-Dichloroethene ND ug/L 01/31/23 02:53 156-59-20.50 1
trans-1,2-Dichloroethene ND ug/L 01/31/23 02:53 156-60-50.50 1
1,2-Dichloropropane ND ug/L 01/31/23 02:53 78-87-50.50 1
1,3-Dichloropropane ND ug/L 01/31/23 02:53 142-28-90.50 1
2,2-Dichloropropane ND ug/L 01/31/23 02:53 594-20-70.50 1
1,1-Dichloropropene ND ug/L 01/31/23 02:53 563-58-60.50 1
cis-1,3-Dichloropropene ND ug/L 01/31/23 02:53 10061-01-50.50 1
trans-1,3-Dichloropropene ND ug/L 01/31/23 02:53 10061-02-60.50 1
Diisopropyl ether ND ug/L 01/31/23 02:53 108-20-30.50 1
Ethanol ND ug/L 01/31/23 02:53 64-17-52001
Ethylbenzene 2.0 ug/L 01/31/23 02:53 100-41-40.50 1
Ethyl-tert-butyl ether ND ug/L 01/31/23 02:53 637-92-310.0 1
Hexachloro-1,3-butadiene ND ug/L 01/31/23 02:53 87-68-32.0 1
Isopropylbenzene (Cumene)1.5 ug/L 01/31/23 02:53 98-82-80.50 1
Methylene Chloride ND ug/L 01/31/23 02:53 75-09-22.0 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 02/01/2023 02:42 PM
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 22 of 40
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92647704
Former Thrifty Shop #1
Sample:RW-2 Lab ID:92647704009 Collected:01/18/23 10:35 Received:01/19/23 12:35 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Methyl-tert-butyl ether ND ug/L 01/31/23 02:53 1634-04-40.50 1
Naphthalene ND ug/L 01/31/23 02:53 91-20-32.0 1
n-Propylbenzene 0.82 ug/L 01/31/23 02:53 103-65-10.50 1
Styrene ND ug/L 01/31/23 02:53 100-42-50.50 1
1,1,1,2-Tetrachloroethane ND ug/L 01/31/23 02:53 630-20-60.50 1
1,1,2,2-Tetrachloroethane ND ug/L 01/31/23 02:53 79-34-50.50 1
Tetrachloroethene ND ug/L 01/31/23 02:53 127-18-40.50 1
Toluene ND ug/L 01/31/23 02:53 108-88-30.50 1
1,2,3-Trichlorobenzene ND ug/L 01/31/23 02:53 87-61-62.0 1
1,2,4-Trichlorobenzene ND ug/L 01/31/23 02:53 120-82-12.0 1
1,1,1-Trichloroethane ND ug/L 01/31/23 02:53 71-55-60.50 1
1,1,2-Trichloroethane ND ug/L 01/31/23 02:53 79-00-50.50 1
Trichloroethene ND ug/L 01/31/23 02:53 79-01-60.50 1
Trichlorofluoromethane ND ug/L 01/31/23 02:53 75-69-41.0 1
1,2,3-Trichloropropane ND ug/L 01/31/23 02:53 96-18-40.50 1
1,2,4-Trimethylbenzene ND ug/L 01/31/23 02:53 95-63-60.50 1
1,3,5-Trimethylbenzene ND ug/L 01/31/23 02:53 108-67-80.50 1
Vinyl chloride ND ug/L 01/31/23 02:53 75-01-41.0 1
m&p-Xylene ND ug/L 01/31/23 02:53 179601-23-11.0 1
o-Xylene ND ug/L 01/31/23 02:53 95-47-60.50 1
Surrogates
1,2-Dichloroethane-d4 (S)116 %01/31/23 02:53 17060-07-070-130 1
4-Bromofluorobenzene (S)99 %01/31/23 02:53 460-00-470-130 1
Toluene-d8 (S)101 %01/31/23 02:53 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: 02/01/2023 02:42 PM
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 23 of 40
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92647704
Former Thrifty Shop #1
Sample:RW-3 Lab ID:92647704010 Collected:01/18/23 10:35 Received:01/19/23 12:35 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
tert-Amyl Alcohol ND ug/L 01/31/23 03:48 75-85-41001
tert-Amylmethyl ether ND ug/L 01/31/23 03:48 994-05-810.0 1
Benzene 7.5 ug/L 01/31/23 03:48 71-43-20.50 1
Bromobenzene ND ug/L 01/31/23 03:48 108-86-10.50 1
Bromochloromethane ND ug/L 01/31/23 03:48 74-97-50.50 1
Bromodichloromethane ND ug/L 01/31/23 03:48 75-27-40.50 1
Bromoform ND ug/L 01/31/23 03:48 75-25-20.50 1
Bromomethane ND ug/L 01/31/23 03:48 74-83-95.0 1
tert-Butyl Alcohol ND ug/L 01/31/23 03:48 75-65-050.0 1
n-Butylbenzene ND ug/L 01/31/23 03:48 104-51-80.50 1
sec-Butylbenzene ND ug/L 01/31/23 03:48 135-98-80.50 1
tert-Butylbenzene ND ug/L 01/31/23 03:48 98-06-60.50 1
tert-Butyl Formate ND ug/L 01/31/23 03:48 762-75-450.0 1
Carbon tetrachloride ND ug/L 01/31/23 03:48 56-23-50.50 1
Chlorobenzene ND ug/L 01/31/23 03:48 108-90-70.50 1
Chloroethane ND ug/L 01/31/23 03:48 75-00-31.0 1
Chloroform ND ug/L 01/31/23 03:48 67-66-30.50 1
Chloromethane ND ug/L 01/31/23 03:48 74-87-31.0 1
2-Chlorotoluene ND ug/L 01/31/23 03:48 95-49-80.50 1
4-Chlorotoluene ND ug/L 01/31/23 03:48 106-43-40.50 1
1,2-Dibromo-3-chloropropane ND ug/L 01/31/23 03:48 96-12-81.0 1
Dibromochloromethane ND ug/L 01/31/23 03:48 124-48-10.50 1
1,2-Dibromoethane (EDB)ND ug/L 01/31/23 03:48 106-93-40.50 1
Dibromomethane ND ug/L 01/31/23 03:48 74-95-30.50 1
1,2-Dichlorobenzene ND ug/L 01/31/23 03:48 95-50-10.50 1
1,3-Dichlorobenzene ND ug/L 01/31/23 03:48 541-73-10.50 1
1,4-Dichlorobenzene ND ug/L 01/31/23 03:48 106-46-70.50 1
Dichlorodifluoromethane ND ug/L 01/31/23 03:48 75-71-80.50 1
1,1-Dichloroethane ND ug/L 01/31/23 03:48 75-34-30.50 1
1,2-Dichloroethane ND ug/L 01/31/23 03:48 107-06-20.50 1
1,1-Dichloroethene ND ug/L 01/31/23 03:48 75-35-40.50 1
cis-1,2-Dichloroethene ND ug/L 01/31/23 03:48 156-59-20.50 1
trans-1,2-Dichloroethene ND ug/L 01/31/23 03:48 156-60-50.50 1
1,2-Dichloropropane ND ug/L 01/31/23 03:48 78-87-50.50 1
1,3-Dichloropropane ND ug/L 01/31/23 03:48 142-28-90.50 1
2,2-Dichloropropane ND ug/L 01/31/23 03:48 594-20-70.50 1
1,1-Dichloropropene ND ug/L 01/31/23 03:48 563-58-60.50 1
cis-1,3-Dichloropropene ND ug/L 01/31/23 03:48 10061-01-50.50 1
trans-1,3-Dichloropropene ND ug/L 01/31/23 03:48 10061-02-60.50 1
Diisopropyl ether ND ug/L 01/31/23 03:48 108-20-30.50 1
Ethanol ND ug/L 01/31/23 03:48 64-17-52001
Ethylbenzene 10 ug/L 01/31/23 03:48 100-41-40.50 1
Ethyl-tert-butyl ether ND ug/L 01/31/23 03:48 637-92-310.0 1
Hexachloro-1,3-butadiene ND ug/L 01/31/23 03:48 87-68-32.0 1
Isopropylbenzene (Cumene)1.9 ug/L 01/31/23 03:48 98-82-80.50 1
Methylene Chloride ND ug/L 01/31/23 03:48 75-09-22.0 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 02/01/2023 02:42 PM
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 24 of 40
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92647704
Former Thrifty Shop #1
Sample:RW-3 Lab ID:92647704010 Collected:01/18/23 10:35 Received:01/19/23 12:35 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Methyl-tert-butyl ether ND ug/L 01/31/23 03:48 1634-04-40.50 1
Naphthalene 12.9 ug/L 01/31/23 03:48 91-20-32.0 1
n-Propylbenzene 3.6 ug/L 01/31/23 03:48 103-65-10.50 1
Styrene ND ug/L 01/31/23 03:48 100-42-50.50 1
1,1,1,2-Tetrachloroethane ND ug/L 01/31/23 03:48 630-20-60.50 1
1,1,2,2-Tetrachloroethane ND ug/L 01/31/23 03:48 79-34-50.50 1
Tetrachloroethene ND ug/L 01/31/23 03:48 127-18-40.50 1
Toluene 0.97 ug/L 01/31/23 03:48 108-88-30.50 1
1,2,3-Trichlorobenzene ND ug/L 01/31/23 03:48 87-61-62.0 1
1,2,4-Trichlorobenzene ND ug/L 01/31/23 03:48 120-82-12.0 1
1,1,1-Trichloroethane ND ug/L 01/31/23 03:48 71-55-60.50 1
1,1,2-Trichloroethane ND ug/L 01/31/23 03:48 79-00-50.50 1
Trichloroethene ND ug/L 01/31/23 03:48 79-01-60.50 1
Trichlorofluoromethane ND ug/L 01/31/23 03:48 75-69-41.0 1
1,2,3-Trichloropropane ND ug/L 01/31/23 03:48 96-18-40.50 1
1,2,4-Trimethylbenzene 3.5 ug/L 01/31/23 03:48 95-63-60.50 1
1,3,5-Trimethylbenzene 1.1 ug/L 01/31/23 03:48 108-67-80.50 1
Vinyl chloride ND ug/L 01/31/23 03:48 75-01-41.0 1
m&p-Xylene 8.4 ug/L 01/31/23 03:48 179601-23-11.0 1
o-Xylene 0.82 ug/L 01/31/23 03:48 95-47-60.50 1
Surrogates
1,2-Dichloroethane-d4 (S)112 %01/31/23 03:48 17060-07-070-130 1
4-Bromofluorobenzene (S)99 %01/31/23 03:48 460-00-470-130 1
Toluene-d8 (S)100 %01/31/23 03:48 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: 02/01/2023 02:42 PM
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1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 25 of 40
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92647704
Former Thrifty Shop #1
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:
751673
SM 6200B
SM 6200B
6200B MSV
Laboratory:Pace Analytical Services - Charlotte
Associated Lab Samples:92647704002, 92647704003, 92647704004, 92647704005
Parameter Units
Blank
Result
Reporting
Limit Qualifiers
METHOD BLANK:3905993
Associated Lab Samples:92647704002, 92647704003, 92647704004, 92647704005
Matrix:Water
Analyzed
1,1,1,2-Tetrachloroethane ug/L ND 0.50 01/25/23 15:57
1,1,1-Trichloroethane ug/L ND 0.50 01/25/23 15:57
1,1,2,2-Tetrachloroethane ug/L ND 0.50 01/25/23 15:57
1,1,2-Trichloroethane ug/L ND 0.50 01/25/23 15:57
1,1-Dichloroethane ug/L ND 0.50 01/25/23 15:57
1,1-Dichloroethene ug/L ND 0.50 01/25/23 15:57
1,1-Dichloropropene ug/L ND 0.50 01/25/23 15:57
1,2,3-Trichlorobenzene ug/L ND 2.0 01/25/23 15:57
1,2,3-Trichloropropane ug/L ND 0.50 01/25/23 15:57
1,2,4-Trichlorobenzene ug/L ND 2.0 01/25/23 15:57
1,2,4-Trimethylbenzene ug/L ND 0.50 01/25/23 15:57
1,2-Dibromo-3-chloropropane ug/L ND 1.0 01/25/23 15:57
1,2-Dibromoethane (EDB)ug/L ND 0.50 01/25/23 15:57
1,2-Dichlorobenzene ug/L ND 0.50 01/25/23 15:57
1,2-Dichloroethane ug/L ND 0.50 01/25/23 15:57
1,2-Dichloropropane ug/L ND 0.50 01/25/23 15:57
1,3,5-Trimethylbenzene ug/L ND 0.50 01/25/23 15:57
1,3-Dichlorobenzene ug/L ND 0.50 01/25/23 15:57
1,3-Dichloropropane ug/L ND 0.50 01/25/23 15:57
1,4-Dichlorobenzene ug/L ND 0.50 01/25/23 15:57
2,2-Dichloropropane ug/L ND 0.50 01/25/23 15:57
2-Chlorotoluene ug/L ND 0.50 01/25/23 15:57
4-Chlorotoluene ug/L ND 0.50 01/25/23 15:57
Benzene ug/L ND 0.50 01/25/23 15:57
Bromobenzene ug/L ND 0.50 01/25/23 15:57
Bromochloromethane ug/L ND 0.50 01/25/23 15:57
Bromodichloromethane ug/L ND 0.50 01/25/23 15:57
Bromoform ug/L ND 0.50 01/25/23 15:57
Bromomethane ug/L ND 5.0 01/25/23 15:57
Carbon tetrachloride ug/L ND 0.50 01/25/23 15:57
Chlorobenzene ug/L ND 0.50 01/25/23 15:57
Chloroethane ug/L ND 1.0 01/25/23 15:57
Chloroform ug/L ND 0.50 01/25/23 15:57
Chloromethane ug/L ND 1.0 01/25/23 15:57
cis-1,2-Dichloroethene ug/L ND 0.50 01/25/23 15:57
cis-1,3-Dichloropropene ug/L ND 0.50 01/25/23 15:57
Dibromochloromethane ug/L ND 0.50 01/25/23 15:57
Dibromomethane ug/L ND 0.50 01/25/23 15:57
Dichlorodifluoromethane ug/L ND 0.50 01/25/23 15:57
Diisopropyl ether ug/L ND 0.50 01/25/23 15:57
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 02/01/2023 02:42 PM
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 26 of 40
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92647704
Former Thrifty Shop #1
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
Parameter Units
Blank
Result
Reporting
Limit Qualifiers
METHOD BLANK:3905993
Associated Lab Samples:92647704002, 92647704003, 92647704004, 92647704005
Matrix:Water
Analyzed
Ethanol ug/L ND 200 01/25/23 15:57
Ethyl-tert-butyl ether ug/L ND 10.0 01/25/23 15:57
Ethylbenzene ug/L ND 0.50 01/25/23 15:57
Hexachloro-1,3-butadiene ug/L ND 2.0 01/25/23 15:57
Isopropylbenzene (Cumene)ug/L ND 0.50 01/25/23 15:57
m&p-Xylene ug/L ND 1.0 01/25/23 15:57
Methyl-tert-butyl ether ug/L ND 0.50 01/25/23 15:57
Methylene Chloride ug/L ND 2.0 IH01/25/23 15:57
n-Butylbenzene ug/L ND 0.50 01/25/23 15:57
n-Propylbenzene ug/L ND 0.50 01/25/23 15:57
Naphthalene ug/L ND 2.0 01/25/23 15:57
o-Xylene ug/L ND 0.50 01/25/23 15:57
sec-Butylbenzene ug/L ND 0.50 01/25/23 15:57
Styrene ug/L ND 0.50 01/25/23 15:57
tert-Amyl Alcohol ug/L ND 100 01/25/23 15:57
tert-Amylmethyl ether ug/L ND 10.0 01/25/23 15:57
tert-Butyl Alcohol ug/L ND 50.0 01/25/23 15:57
tert-Butyl Formate ug/L ND 50.0 01/25/23 15:57
tert-Butylbenzene ug/L ND 0.50 01/25/23 15:57
Tetrachloroethene ug/L ND 0.50 01/25/23 15:57
Toluene ug/L ND 0.50 01/25/23 15:57
trans-1,2-Dichloroethene ug/L ND 0.50 01/25/23 15:57
trans-1,3-Dichloropropene ug/L ND 0.50 01/25/23 15:57
Trichloroethene ug/L ND 0.50 01/25/23 15:57
Trichlorofluoromethane ug/L ND 1.0 01/25/23 15:57
Vinyl chloride ug/L ND 1.0 01/25/23 15:57
1,2-Dichloroethane-d4 (S)%89 70-130 01/25/23 15:57
4-Bromofluorobenzene (S)%102 70-130 01/25/23 15:57
Toluene-d8 (S)%102 70-130 01/25/23 15:57
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
3905994LABORATORY CONTROL SAMPLE:
LCSSpike
1,1,1,2-Tetrachloroethane ug/L 19.320 96 60-140
1,1,1-Trichloroethane ug/L 19.820 99 60-140
1,1,2,2-Tetrachloroethane ug/L 19.320 96 60-140
1,1,2-Trichloroethane ug/L 21.120 105 60-140
1,1-Dichloroethane ug/L 19.120 95 60-140
1,1-Dichloroethene ug/L 20.920 105 60-140
1,1-Dichloropropene ug/L 18.120 91 60-140
1,2,3-Trichlorobenzene ug/L 20.220 101 60-140
1,2,3-Trichloropropane ug/L 19.020 95 60-140
1,2,4-Trichlorobenzene ug/L 20.320 101 60-140
1,2,4-Trimethylbenzene ug/L 20.120 100 60-140
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 02/01/2023 02:42 PM
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 27 of 40
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92647704
Former Thrifty Shop #1
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
3905994LABORATORY CONTROL SAMPLE:
LCSSpike
1,2-Dibromo-3-chloropropane ug/L 19.220 96 60-140
1,2-Dibromoethane (EDB)ug/L 19.720 99 60-140
1,2-Dichlorobenzene ug/L 19.820 99 60-140
1,2-Dichloroethane ug/L 19.320 97 60-140
1,2-Dichloropropane ug/L 21.820 109 60-140
1,3,5-Trimethylbenzene ug/L 20.220 101 60-140
1,3-Dichlorobenzene ug/L 20.120 100 60-140
1,3-Dichloropropane ug/L 19.720 99 60-140
1,4-Dichlorobenzene ug/L 19.320 97 60-140
2,2-Dichloropropane ug/L 19.920 99 60-140
2-Chlorotoluene ug/L 19.720 98 60-140
4-Chlorotoluene ug/L 19.220 96 60-140
Benzene ug/L 18.620 93 60-140
Bromobenzene ug/L 18.820 94 60-140
Bromochloromethane ug/L 21.120 105 60-140
Bromodichloromethane ug/L 20.520 103 60-140
Bromoform ug/L 20.020 100 60-140
Bromomethane ug/L 24.620 123 60-140
Carbon tetrachloride ug/L 20.320 102 60-140
Chlorobenzene ug/L 19.620 98 60-140
Chloroethane ug/L 25.220 126 60-140
Chloroform ug/L 19.320 96 60-140
Chloromethane ug/L 25.120 126 60-140
cis-1,2-Dichloroethene ug/L 18.920 95 60-140
cis-1,3-Dichloropropene ug/L 21.020 105 60-140
Dibromochloromethane ug/L 19.820 99 60-140
Dibromomethane ug/L 20.520 103 60-140
Dichlorodifluoromethane ug/L 24.320 122 60-140
Diisopropyl ether ug/L 17.920 89 60-140
Ethanol ug/L 782800 98 60-140
Ethyl-tert-butyl ether ug/L 35.540 89 60-140
Ethylbenzene ug/L 19.720 98 60-140
Hexachloro-1,3-butadiene ug/L 21.320 107 60-140
Isopropylbenzene (Cumene)ug/L 19.820 99 60-140
m&p-Xylene ug/L 39.940 100 60-140
Methyl-tert-butyl ether ug/L 18.120 90 60-140
Methylene Chloride ug/L 16.5 IH208260-140
n-Butylbenzene ug/L 21.420 107 60-140
n-Propylbenzene ug/L 19.720 98 60-140
Naphthalene ug/L 19.820 99 60-140
o-Xylene ug/L 20.220 101 60-140
sec-Butylbenzene ug/L 20.520 103 60-140
Styrene ug/L 20.220 101 60-140
tert-Amyl Alcohol ug/L 341400 85 60-140
tert-Amylmethyl ether ug/L 36.940 92 60-140
tert-Butyl Alcohol ug/L 181200 91 60-140
tert-Butyl Formate ug/L 147160 92 60-140
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.Date: 02/01/2023 02:42 PM
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 28 of 40
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92647704
Former Thrifty Shop #1
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
3905994LABORATORY CONTROL SAMPLE:
LCSSpike
tert-Butylbenzene ug/L 17.020 85 60-140
Tetrachloroethene ug/L 19.920 100 60-140
Toluene ug/L 19.820 99 60-140
trans-1,2-Dichloroethene ug/L 20.320 101 60-140
trans-1,3-Dichloropropene ug/L 21.220 106 60-140
Trichloroethene ug/L 20.320 101 60-140
Trichlorofluoromethane ug/L 20.020 100 60-140
Vinyl chloride ug/L 26.120 130 60-140
1,2-Dichloroethane-d4 (S)%91 70-130
4-Bromofluorobenzene (S)%100 70-130
Toluene-d8 (S)%103 70-130
Parameter Units
MS
Result
% Rec
Limits Qual% RecConc.
3905995MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
MSSpike
Result
92647704002
3905996
MSD
Result
MSD
% Rec RPD
MSDMS
Spike
Conc.
1,1,1,2-Tetrachloroethane ug/L 20 98 60-140100 220ND19.6 20.0
1,1,1-Trichloroethane ug/L 20 110 60-140110 020ND22.0 22.0
1,1,2,2-Tetrachloroethane ug/L 20 97 60-140102 520ND19.5 20.4
1,1,2-Trichloroethane ug/L 20 96 60-14096 120ND19.2 19.3
1,1-Dichloroethane ug/L 20 103 60-140106 320ND20.6 21.3
1,1-Dichloroethene ug/L 20 109 60-140108 220ND21.9 21.5
1,1-Dichloropropene ug/L 20 122 60-140121 120ND24.4 24.1
1,2,3-Trichlorobenzene ug/L 20 90 60-14096 720ND17.9 19.2
1,2,3-Trichloropropane ug/L 20 93 60-14086 720ND18.6 17.2
1,2,4-Trichlorobenzene ug/L 20 93 60-14094 120ND18.6 18.8
1,2,4-Trimethylbenzene ug/L 20 104 60-140107 220ND20.8 21.3
1,2-Dibromo-3-chloropropane ug/L 20 93 60-14094 120ND18.6 18.8
1,2-Dibromoethane (EDB)ug/L 20 98 60-140103 520ND19.6 20.6
1,2-Dichlorobenzene ug/L 20 94 60-14098 420ND18.7 19.6
1,2-Dichloroethane ug/L 20 91 60-14093 220ND18.2 18.6
1,2-Dichloropropane ug/L 20 100 60-14098 220ND20.0 19.7
1,3,5-Trimethylbenzene ug/L 20 105 60-140108 320ND21.0 21.7
1,3-Dichlorobenzene ug/L 20 99 60-140104 520ND19.7 20.7
1,3-Dichloropropane ug/L 20 102 60-140105 220ND20.4 20.9
1,4-Dichlorobenzene ug/L 20 90 60-14095 520ND18.1 19.1
2,2-Dichloropropane ug/L 20 109 60-140108 020ND21.7 21.6
2-Chlorotoluene ug/L 20 92 60-140105 1320ND18.4 21.0
4-Chlorotoluene ug/L 20 97 60-140101 420ND19.4 20.2
Benzene ug/L 20 103 60-140102 120ND20.7 20.5
Bromobenzene ug/L 20 95 60-140100 520ND19.0 19.9
Bromochloromethane ug/L 20 104 60-140106 120ND20.9 21.2
Bromodichloromethane ug/L 20 98 60-14098 120ND19.7 19.6
Bromoform ug/L 20 84 60-14092 1020ND16.7 18.4
Bromomethane ug/L 20 62 60-14081 2620ND12.4 16.2
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 02/01/2023 02:42 PM
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 29 of 40
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92647704
Former Thrifty Shop #1
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.
3905995MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
MSSpike
Result
92647704002
3905996
MSD
Result
MSD
% Rec RPD
MSDMS
Spike
Conc.
Carbon tetrachloride ug/L 20 100 60-140100 020ND19.9 20.0
Chlorobenzene ug/L 20 99 60-140100 020ND19.9 19.9
Chloroethane ug/L 20 105 60-140108 220ND21.0 21.5
Chloroform ug/L 20 121 60-140118 320ND24.2 23.6
Chloromethane ug/L 20 78 60-14078 120ND15.7 15.5
cis-1,2-Dichloroethene ug/L 20 102 60-140102 020ND20.4 20.4
cis-1,3-Dichloropropene ug/L 20 104 60-140110 520ND20.9 22.0
Dibromochloromethane ug/L 20 99 60-14097 220ND19.8 19.4
Dibromomethane ug/L 20 94 60-14090 420ND18.8 18.1
Dichlorodifluoromethane ug/L 20 70 60-14072 220ND14.1 14.4
Diisopropyl ether ug/L 20 93 60-14090 320ND18.5 18.0
Ethanol ug/L 800 102 60-140101 1800ND815805
Ethyl-tert-butyl ether ug/L 40 96 60-14092 440ND38.3 36.9
Ethylbenzene ug/L 20 101 60-140103 220ND20.1 20.6
Hexachloro-1,3-butadiene ug/L 20 93 60-14096 220ND18.7 19.1
Isopropylbenzene (Cumene)ug/L 20 98 60-140101 320ND19.7 20.3
m&p-Xylene ug/L 40 100 60-140104 440ND40.0 41.6
Methyl-tert-butyl ether ug/L 20 101 60-14095 620ND20.1 18.9
Methylene Chloride ug/L 20 75 60-14077 320ND15.1 15.5
n-Butylbenzene ug/L 20 109 60-140112 320ND21.7 22.5
n-Propylbenzene ug/L 20 101 60-140104 320ND20.3 20.8
Naphthalene ug/L 20 91 60-140101 1020ND18.3 20.2
o-Xylene ug/L 20 99 60-140100 120ND19.7 19.9
sec-Butylbenzene ug/L 20 104 60-140109 420ND20.8 21.7
Styrene ug/L 20 98 60-140101 220ND19.7 20.2
tert-Amyl Alcohol ug/L 400 100 60-14098 2400ND398391
tert-Amylmethyl ether ug/L 40 99 60-14098 140ND39.6 39.1
tert-Butyl Alcohol ug/L M120014660-140141 4200ND292282
tert-Butyl Formate ug/L M1160860-1406160NDNDND
tert-Butylbenzene ug/L 20 85 60-14089 520ND17.0 17.9
Tetrachloroethene ug/L 20 93 60-14099 520ND18.7 19.7
Toluene ug/L 20 95 60-14097 220ND19.0 19.5
trans-1,2-Dichloroethene ug/L 20 105 60-140108 320ND20.9 21.7
trans-1,3-Dichloropropene ug/L 20 97 60-14098 120ND19.3 19.5
Trichloroethene ug/L 20 106 60-140107 120ND21.3 21.5
Trichlorofluoromethane ug/L 20 89 60-14091 320ND17.8 18.3
Vinyl chloride ug/L 20 95 60-14098 320ND18.9 19.5
1,2-Dichloroethane-d4 (S)%99 70-13096
4-Bromofluorobenzene (S)%97 70-13098
Toluene-d8 (S)%98 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: 02/01/2023 02:42 PM
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 30 of 40
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92647704
Former Thrifty Shop #1
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:
752228
SM 6200B
SM 6200B
6200B MSV
Laboratory:Pace Analytical Services - Charlotte
Associated Lab Samples:92647704001, 92647704006, 92647704007, 92647704008, 92647704009, 92647704010
Parameter Units
Blank
Result
Reporting
Limit Qualifiers
METHOD BLANK:3908762
Associated Lab Samples:92647704001, 92647704006, 92647704007, 92647704008, 92647704009, 92647704010
Matrix:Water
Analyzed
1,1,1,2-Tetrachloroethane ug/L ND 0.50 01/31/23 00:45
1,1,1-Trichloroethane ug/L ND 0.50 01/31/23 00:45
1,1,2,2-Tetrachloroethane ug/L ND 0.50 01/31/23 00:45
1,1,2-Trichloroethane ug/L ND 0.50 01/31/23 00:45
1,1-Dichloroethane ug/L ND 0.50 01/31/23 00:45
1,1-Dichloroethene ug/L ND 0.50 01/31/23 00:45
1,1-Dichloropropene ug/L ND 0.50 01/31/23 00:45
1,2,3-Trichlorobenzene ug/L ND 2.0 01/31/23 00:45
1,2,3-Trichloropropane ug/L ND 0.50 01/31/23 00:45
1,2,4-Trichlorobenzene ug/L ND 2.0 01/31/23 00:45
1,2,4-Trimethylbenzene ug/L ND 0.50 01/31/23 00:45
1,2-Dibromo-3-chloropropane ug/L ND 1.0 01/31/23 00:45
1,2-Dibromoethane (EDB)ug/L ND 0.50 01/31/23 00:45
1,2-Dichlorobenzene ug/L ND 0.50 01/31/23 00:45
1,2-Dichloroethane ug/L ND 0.50 01/31/23 00:45
1,2-Dichloropropane ug/L ND 0.50 01/31/23 00:45
1,3,5-Trimethylbenzene ug/L ND 0.50 01/31/23 00:45
1,3-Dichlorobenzene ug/L ND 0.50 01/31/23 00:45
1,3-Dichloropropane ug/L ND 0.50 01/31/23 00:45
1,4-Dichlorobenzene ug/L ND 0.50 01/31/23 00:45
2,2-Dichloropropane ug/L ND 0.50 01/31/23 00:45
2-Chlorotoluene ug/L ND 0.50 01/31/23 00:45
4-Chlorotoluene ug/L ND 0.50 01/31/23 00:45
Benzene ug/L ND 0.50 01/31/23 00:45
Bromobenzene ug/L ND 0.50 01/31/23 00:45
Bromochloromethane ug/L ND 0.50 01/31/23 00:45
Bromodichloromethane ug/L ND 0.50 01/31/23 00:45
Bromoform ug/L ND 0.50 01/31/23 00:45
Bromomethane ug/L ND 5.0 01/31/23 00:45
Carbon tetrachloride ug/L ND 0.50 01/31/23 00:45
Chlorobenzene ug/L ND 0.50 01/31/23 00:45
Chloroethane ug/L ND 1.0 01/31/23 00:45
Chloroform ug/L ND 0.50 01/31/23 00:45
Chloromethane ug/L ND 1.0 01/31/23 00:45
cis-1,2-Dichloroethene ug/L ND 0.50 01/31/23 00:45
cis-1,3-Dichloropropene ug/L ND 0.50 01/31/23 00:45
Dibromochloromethane ug/L ND 0.50 01/31/23 00:45
Dibromomethane ug/L ND 0.50 01/31/23 00:45
Dichlorodifluoromethane ug/L ND 0.50 01/31/23 00:45
Diisopropyl ether ug/L ND 0.50 01/31/23 00:45
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 02/01/2023 02:42 PM
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Page 31 of 40
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92647704
Former Thrifty Shop #1
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
Parameter Units
Blank
Result
Reporting
Limit Qualifiers
METHOD BLANK:3908762
Associated Lab Samples:92647704001, 92647704006, 92647704007, 92647704008, 92647704009, 92647704010
Matrix:Water
Analyzed
Ethanol ug/L ND 200 01/31/23 00:45
Ethyl-tert-butyl ether ug/L ND 10.0 01/31/23 00:45
Ethylbenzene ug/L ND 0.50 01/31/23 00:45
Hexachloro-1,3-butadiene ug/L ND 2.0 01/31/23 00:45
Isopropylbenzene (Cumene)ug/L ND 0.50 01/31/23 00:45
m&p-Xylene ug/L ND 1.0 01/31/23 00:45
Methyl-tert-butyl ether ug/L ND 0.50 01/31/23 00:45
Methylene Chloride ug/L ND 2.0 01/31/23 00:45
n-Butylbenzene ug/L ND 0.50 01/31/23 00:45
n-Propylbenzene ug/L ND 0.50 01/31/23 00:45
Naphthalene ug/L ND 2.0 01/31/23 00:45
o-Xylene ug/L ND 0.50 01/31/23 00:45
sec-Butylbenzene ug/L ND 0.50 01/31/23 00:45
Styrene ug/L ND 0.50 01/31/23 00:45
tert-Amyl Alcohol ug/L ND 100 01/31/23 00:45
tert-Amylmethyl ether ug/L ND 10.0 01/31/23 00:45
tert-Butyl Alcohol ug/L ND 50.0 01/31/23 00:45
tert-Butyl Formate ug/L ND 50.0 01/31/23 00:45
tert-Butylbenzene ug/L ND 0.50 01/31/23 00:45
Tetrachloroethene ug/L ND 0.50 01/31/23 00:45
Toluene ug/L ND 0.50 01/31/23 00:45
trans-1,2-Dichloroethene ug/L ND 0.50 01/31/23 00:45
trans-1,3-Dichloropropene ug/L ND 0.50 01/31/23 00:45
Trichloroethene ug/L ND 0.50 01/31/23 00:45
Trichlorofluoromethane ug/L ND 1.0 01/31/23 00:45
Vinyl chloride ug/L ND 1.0 01/31/23 00:45
1,2-Dichloroethane-d4 (S)%114 70-130 01/31/23 00:45
4-Bromofluorobenzene (S)%100 70-130 01/31/23 00:45
Toluene-d8 (S)%102 70-130 01/31/23 00:45
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
3908763LABORATORY CONTROL SAMPLE:
LCSSpike
1,1,1,2-Tetrachloroethane ug/L 21.620 108 60-140
1,1,1-Trichloroethane ug/L 23.020 115 60-140
1,1,2,2-Tetrachloroethane ug/L 22.920 114 60-140
1,1,2-Trichloroethane ug/L 22.220 111 60-140
1,1-Dichloroethane ug/L 22.220 111 60-140
1,1-Dichloroethene ug/L 20.620 103 60-140
1,1-Dichloropropene ug/L 24.220 121 60-140
1,2,3-Trichlorobenzene ug/L 22.820 114 60-140
1,2,3-Trichloropropane ug/L 23.720 118 60-140
1,2,4-Trichlorobenzene ug/L 21.520 107 60-140
1,2,4-Trimethylbenzene ug/L 23.120 116 60-140
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 02/01/2023 02:42 PM
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 32 of 40
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92647704
Former Thrifty Shop #1
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
3908763LABORATORY CONTROL SAMPLE:
LCSSpike
1,2-Dibromo-3-chloropropane ug/L 19.720 98 60-140
1,2-Dibromoethane (EDB)ug/L 23.620 118 60-140
1,2-Dichlorobenzene ug/L 22.220 111 60-140
1,2-Dichloroethane ug/L 24.820 124 60-140
1,2-Dichloropropane ug/L 23.120 116 60-140
1,3,5-Trimethylbenzene ug/L 22.920 115 60-140
1,3-Dichlorobenzene ug/L 22.020 110 60-140
1,3-Dichloropropane ug/L 23.720 118 60-140
1,4-Dichlorobenzene ug/L 21.120 105 60-140
2,2-Dichloropropane ug/L 21.120 106 60-140
2-Chlorotoluene ug/L 22.620 113 60-140
4-Chlorotoluene ug/L 22.920 114 60-140
Benzene ug/L 19.320 97 60-140
Bromobenzene ug/L 21.420 107 60-140
Bromochloromethane ug/L 22.020 110 60-140
Bromodichloromethane ug/L 20.820 104 60-140
Bromoform ug/L 18.820 94 60-140
Bromomethane ug/L 15.920 79 60-140
Carbon tetrachloride ug/L 19.620 98 60-140
Chlorobenzene ug/L 22.820 114 60-140
Chloroethane ug/L 23.420 117 60-140
Chloroform ug/L 21.220 106 60-140
Chloromethane ug/L 17.320 87 60-140
cis-1,2-Dichloroethene ug/L 23.020 115 60-140
cis-1,3-Dichloropropene ug/L 21.620 108 60-140
Dibromochloromethane ug/L 20.420 102 60-140
Dibromomethane ug/L 20.920 104 60-140
Dichlorodifluoromethane ug/L 15.120 75 60-140
Diisopropyl ether ug/L 23.020 115 60-140
Ethanol ug/L 873800 109 60-140
Ethyl-tert-butyl ether ug/L 45.340 113 60-140
Ethylbenzene ug/L 23.120 115 60-140
Hexachloro-1,3-butadiene ug/L 19.620 98 60-140
Isopropylbenzene (Cumene)ug/L 23.020 115 60-140
m&p-Xylene ug/L 46.840 117 60-140
Methyl-tert-butyl ether ug/L 22.320 111 60-140
Methylene Chloride ug/L 21.620 108 60-140
n-Butylbenzene ug/L 23.220 116 60-140
n-Propylbenzene ug/L 22.520 112 60-140
Naphthalene ug/L 24.720 124 60-140
o-Xylene ug/L 23.520 118 60-140
sec-Butylbenzene ug/L 22.420 112 60-140
Styrene ug/L 23.920 120 60-140
tert-Amyl Alcohol ug/L 480400 120 60-140
tert-Amylmethyl ether ug/L 45.940 115 60-140
tert-Butyl Alcohol ug/L 244200 122 60-140
tert-Butyl Formate ug/L 193160 121 60-140
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 02/01/2023 02:42 PM
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 33 of 40
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92647704
Former Thrifty Shop #1
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
3908763LABORATORY CONTROL SAMPLE:
LCSSpike
tert-Butylbenzene ug/L 18.620 93 60-140
Tetrachloroethene ug/L 21.520 107 60-140
Toluene ug/L 21.320 107 60-140
trans-1,2-Dichloroethene ug/L 22.520 113 60-140
trans-1,3-Dichloropropene ug/L 22.320 112 60-140
Trichloroethene ug/L 22.120 111 60-140
Trichlorofluoromethane ug/L 17.020 85 60-140
Vinyl chloride ug/L 15.720 78 60-140
1,2-Dichloroethane-d4 (S)%114 70-130
4-Bromofluorobenzene (S)%103 70-130
Toluene-d8 (S)%98 70-130
Parameter Units
MS
Result
% Rec
Limits Qual% RecConc.
3908764MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
MSSpike
Result
92648316002
3908765
MSD
Result
MSD
% Rec RPD
MSDMS
Spike
Conc.
1,1,1,2-Tetrachloroethane ug/L 20 108 60-140110 220ND21.6 22.0
1,1,1-Trichloroethane ug/L 20 122 60-140118 320ND24.3 23.7
1,1,2,2-Tetrachloroethane ug/L 20 115 60-140115 020ND22.9 22.9
1,1,2-Trichloroethane ug/L 20 118 60-140119 120ND23.6 23.8
1,1-Dichloroethane ug/L 20 114 60-140117 220ND22.8 23.4
1,1-Dichloroethene ug/L 20 101 60-14096 520ND20.1 19.2
1,1-Dichloropropene ug/L 20 134 60-140131 320ND26.8 26.1
1,2,3-Trichlorobenzene ug/L 20 106 60-140131 2220ND21.2 26.3
1,2,3-Trichloropropane ug/L 20 116 60-140114 220ND23.2 22.8
1,2,4-Trichlorobenzene ug/L 20 108 60-140124 1320ND21.7 24.7
1,2,4-Trimethylbenzene ug/L 20 126 60-140126 020ND25.3 25.3
1,2-Dibromo-3-chloropropane ug/L 20 104 60-140104 020ND20.9 20.8
1,2-Dibromoethane (EDB)ug/L 20 119 60-140118 120ND23.8 23.6
1,2-Dichlorobenzene ug/L 20 120 60-140120 020ND23.9 24.0
1,2-Dichloroethane ug/L 20 122 60-140118 320ND24.3 23.5
1,2-Dichloropropane ug/L 20 127 60-140127 020ND25.4 25.5
1,3,5-Trimethylbenzene ug/L 20 126 60-140127 120ND25.2 25.4
1,3-Dichlorobenzene ug/L 20 120 60-140121 120ND24.1 24.3
1,3-Dichloropropane ug/L 20 121 60-140121 020ND24.2 24.2
1,4-Dichlorobenzene ug/L 20 112 60-140114 220ND22.3 22.9
2,2-Dichloropropane ug/L 20 124 60-140122 220ND24.8 24.3
2-Chlorotoluene ug/L 20 123 60-140125 120ND24.6 24.9
4-Chlorotoluene ug/L 20 126 60-140125 120ND25.1 25.0
Benzene ug/L 20 107 60-140108 120ND21.4 21.5
Bromobenzene ug/L 20 117 60-140117 020ND23.4 23.4
Bromochloromethane ug/L 20 111 60-140111 020ND22.2 22.3
Bromodichloromethane ug/L 20 110 60-140109 020ND21.9 21.9
Bromoform ug/L 20 93 60-14092 120ND18.5 18.3
Bromomethane ug/L 20 61 60-14064 520ND12.2 12.8
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 02/01/2023 02:42 PM
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 34 of 40
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92647704
Former Thrifty Shop #1
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.
3908764MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
MSSpike
Result
92648316002
3908765
MSD
Result
MSD
% Rec RPD
MSDMS
Spike
Conc.
Carbon tetrachloride ug/L 20 110 60-140107 320ND22.0 21.3
Chlorobenzene ug/L 20 119 60-140119 020ND23.9 23.8
Chloroethane ug/L 20 112 60-140110 220ND22.4 21.9
Chloroform ug/L 20 120 60-140116 320ND24.0 23.3
Chloromethane ug/L 20 80 60-14079 120ND15.9 15.8
cis-1,2-Dichloroethene ug/L 20 120 60-140121 120ND24.0 24.2
cis-1,3-Dichloropropene ug/L 20 118 60-140119 120ND23.5 23.7
Dibromochloromethane ug/L 20 103 60-140102 120ND20.6 20.4
Dibromomethane ug/L 20 113 60-140111 220ND22.6 22.1
Dichlorodifluoromethane ug/L 20 69 60-14065 620ND13.8 12.9
Diisopropyl ether ug/L 20 114 60-140120 520ND23.0 24.1
Ethanol ug/L 800 100 60-14090 10800ND800722
Ethyl-tert-butyl ether ug/L 40 113 60-140118 440ND45.3 47.3
Ethylbenzene ug/L 20 125 60-140123 220ND24.9 24.5
Hexachloro-1,3-butadiene ug/L 20 104 60-140114 920ND20.8 22.9
Isopropylbenzene (Cumene)ug/L 20 124 60-140122 220ND24.8 24.3
m&p-Xylene ug/L 40 127 60-140124 240ND50.7 49.5
Methyl-tert-butyl ether ug/L 20 107 60-140107 0205.9 27.3 27.2
Methylene Chloride ug/L 20 101 60-14094 720ND20.1 18.8
n-Butylbenzene ug/L 20 132 60-140131 120ND26.3 26.2
n-Propylbenzene ug/L 20 126 60-140125 020ND25.1 25.1
Naphthalene ug/L 20 114 60-140136 1820ND22.9 27.3
o-Xylene ug/L 20 126 60-140123 320ND25.3 24.6
sec-Butylbenzene ug/L 20 126 60-140127 120ND25.1 25.3
Styrene ug/L 20 127 60-140124 220ND25.4 24.9
tert-Amyl Alcohol ug/L 400 126 60-140124 2400ND505495
tert-Amylmethyl ether ug/L 40 119 60-140123 440ND47.5 49.2
tert-Butyl Alcohol ug/L M120013560-140148 9200ND270296
tert-Butyl Formate ug/L R11609060-14060 40160ND14496.0
tert-Butylbenzene ug/L 20 103 60-140104 020ND20.7 20.7
Tetrachloroethene ug/L 20 111 60-140117 520ND22.3 23.4
Toluene ug/L 20 118 60-140117 120ND23.6 23.4
trans-1,2-Dichloroethene ug/L 20 111 60-140109 220ND22.2 21.8
trans-1,3-Dichloropropene ug/L 20 118 60-140118 020ND23.6 23.7
Trichloroethene ug/L 20 124 60-140117 520ND24.7 23.4
Trichlorofluoromethane ug/L 20 84 60-14087 320ND16.9 17.4
Vinyl chloride ug/L 20 77 60-14078 120ND15.4 15.5
1,2-Dichloroethane-d4 (S)%109 70-130107
4-Bromofluorobenzene (S)%103 70-130101
Toluene-d8 (S)%102 70-130103
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.Date: 02/01/2023 02:42 PM
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 35 of 40
#=QL#
QUALIFIERS
Pace Project No.:
Project:
92647704
Former Thrifty Shop #1
DEFINITIONS
DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot.
ND - Not Detected at or above adjusted reporting limit.
TNTC - Too Numerous To Count
J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit.
MDL - Adjusted Method Detection Limit.
PQL - Practical Quantitation Limit.
RL - Reporting Limit - The lowest concentration value that meets project requirements for quantitative data with known precision and
bias for a specific analyte in a specific matrix.
S - Surrogate
1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte is
a combined concentration.
Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values.
LCS(D) - Laboratory Control Sample (Duplicate)
MS(D) - Matrix Spike (Duplicate)
DUP - Sample Duplicate
RPD - Relative Percent Difference
NC - Not Calculable.
SG - Silica Gel - Clean-Up
U - Indicates the compound was analyzed for, but not detected.
Acid preservation may not be appropriate for 2 Chloroethylvinyl ether.
A separate vial preserved to a pH of 4-5 is recommended in SW846 Chapter 4 for the analysis of Acrolein and Acrylonitrile by EPA
Method 8260.
N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for
each analyte is a combined concentration.
Reported results are not rounded until the final step prior to reporting. Therefore, calculated parameters that are typically reported as
"Total" may vary slightly from the sum of the reported component parameters.
Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes.
TNI - The NELAC Institute.
ANALYTE QUALIFIERS
This analyte exceeded secondary source verification criteria high for the initial calibration. The reported results should be
considered an estimated value.IH
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: 02/01/2023 02:42 PM
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1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 36 of 40
#=CR#
QUALITY CONTROL DATA CROSS REFERENCE TABLE
Pace Project No.:
Project:
92647704
Former Thrifty Shop #1
Lab ID Sample ID QC Batch Method QC Batch Analytical Method
Analytical
Batch
92647704001 752228MW-1 SM 6200B
92647704002 751673MW-2 SM 6200B
92647704003 751673MW-3 SM 6200B
92647704004 751673MW-4 SM 6200B
92647704005 751673MW-5 SM 6200B
92647704006 752228MW-6 SM 6200B
92647704007 752228MW-7 SM 6200B
92647704008 752228RW-1 SM 6200B
92647704009 752228RW-2 SM 6200B
92647704010 752228RW-3 SM 6200B
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.Date: 02/01/2023 02:42 PM
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 37 of 40
Page 38 of 40
Page 39 of 40
Page 40 of 40