WS-6334_23926_CA_MRP_20230815

2725 E. Millbrook Road, Suite 121
Raleigh, NC 27604
Telephone [phone]
www.atcgroupservices.com

August 15, 2023

Mr. Hassan Osman
North Carolina Department of Environmental Quality
Division of Waste Management – Underground Storage Tank Section
1646 Mail Service Center
Raleigh, North Carolina 27699

Subject: Free Product Recovery and Groundwater Monitoring Report
Auddies #3
6071 Old NC Highway 49
Asheboro, Randolph County, North Carolina
NCDEQ Incident No. 23926
ATC Project No.: SLC2392603

Dear Mr. Osman:

ATC Associates of North Carolina, P.C. (ATC) is submitting the enclosed Free Product Recovery and
Groundwater Monitoring Report for the Auddies #3 site. The report presents investigative procedures, field
activities, and laboratory analytical results for a groundwater sampling event conducted in June and July 2023.

If you have any questions or require additional information, please contact our office at [phone].

Sincerely,
ATC Associates of North Carolina, P.C.

Laura I. de Sousa Gabriel Araos, P.E.
Staff Scientist Branch Manager
Direct Line: [phone] Direct Line: [phone]
Email: [e-mail] Email: [e-mail]

Attachments:
1. Groundwater Monitoring Report

Prepared for:

North Carolina Department of Environmental Quality
Division of Waste Management – Underground Storage Tank Section
1646 Mail Service Center
Raleigh, North Carolina 27699

FREE PRODUCT RECOVERY AND GROUNDWATER MONITORING REPORT
AUDDIES #3
6071 OLD NC HIGHWAY 49
ASHEBORO, RANDOLPH COUNTY, NORTH CAROLINA

ATC Project No. STL2392601

Prepared by:

ATC Associates of North Carolina, P.C.
2725 E. Millbrook Road, Suite 121
Raleigh, North Carolina 27604
Telephone [phone]

Laura I. de Sousa
Staff Scientist
Direct Line: [phone]
Email: [e-mail]

Gabriel Araos, P.E.
Senior Project Manager
Direct Line: 919-573-1205
Email: [e-mail]

August 15, 2023

Auddies #3
August 15, 2023
Page 1 of 7

Table of Contents
1.0 SITE IDENTIFICATION .......................................................................................................................... 2
2.0 EXECUTIVE SUMMARY ........................................................................................................................ 3
3.0 SITE DESCRIPTION .............................................................................................................................. 3
3.1 SITE CHARACTERIZATION .................................................................................................................................... 3
3.2 SITE BACKGROUND ............................................................................................................................................ 4
4.1 MMPE EVENT ................................................................................................................................................. 6
5.0 GROUNDWATER ASSESSMENT ACTIVITIES .................................................................................. 6
5.1 GROUNDWATER LEVELS...................................................................................................................................... 6
5.2 GROUNDWATER QUALITY ................................................................................................................................... 6
6.0 CONCLUSIONS AND RECOMMENDATIONS .................................................................................... 7

TABLES:
Table 1 – Water Supply Well Information
Table 2 – Monitoring Well Construction and Groundwater Elevation Data
Table 3 – Field Parameters
Table 4 – Groundwater Analytical Results
Table 5 – Historical Groundwater Analytical Results
Table 6 – Water Supply Well Analytical Results

FIGURES:
Figure 1 – Topographic Map
Figure 2 – Site Map
Figure 3 – Water Supply Well Location Map
Figure 4 – Groundwater Elevation Contour Map
Figure 5 – Dissolved Benzene Isoconcentration Map
Figure 6 – Additional Contaminants of Concern in Groundwater Map

APPENDICES:
Appendix A – Field Notes
Appendix B – MMPE Report and Waste Disposal Manifests
Appendix C – Laboratory Analytical Results
Appendix D – Site Photographs

Auddies #3
August 15, 2023
Page 3 of 7

ATC Project No. STL2392601 NCDEQ State Lead Program

2.0 EXECUTIVE SUMMARY

ATC Associates of North Carolina, P.C. (ATC) has completed a mobile multi-phase extraction (MMPE)
event and a groundwater monitoring event for the Auddies #3. This report documents activities conducted
at the site in June and July 2023. The activities were performed based on a April 24, 2023 Task
Authorization (TA-03) by the Trust Fund Branch of the Underground Storage Tank (UST) Section, Division
of Waste Management, North Carolina Department of Environmental Quality (NCDEQ). The work is being
performed as part of State Lead Contract #N70522-B between NCDEQ and ATC.

The former Auddies #3 site is located at 6071 Old NC Highway 49, Asheboro, Randolph County, North
Carolina. The Auddies #3 building, which is a former petroleum retail facility, is currently used by the Farmer
Civitan Club for meetings and to store fund raising items. A residential structure, which is also occupied by
the Farmer Civitan Club, adjoins the Auddies #3 building to the northeast. The former UST system consisted
of one 4,000-gallon gasoline UST (T1), two 2,000-gallon gasoline USTs (T2 and T3), one 1,000-gallon
diesel UST (T4), one 1,000-gallon kerosene UST (T5), one 1,050-gallon UST of unknown use (T6), and
one 400-gallon unknown use UST (T7), which were closed either by removal or in place at the site. Five
monitoring wells (MW-1A, MW-2, MW-3, MW-4, and MW-5) are associated with the site. One active water
supply well (WSW-1) is also located on the property. Previous assessment activities at the site have
identified fourteen active potable water supply wells located within 1,000 feet of the site. Municipal water is
not available to the area.

From June 5 to June 9, 2023, Eastern Environmental Management, LLC (Eastern) performed an MMPE
event on wells MW-2, MW-4, and MW-5 and generated approximately 9,951 gallons of impacted
groundwater and recovered 94.85 gallons of petroleum vapor. On July 7, 2023, ATC returned to the site to
collected groundwater samples from MW-2, MW-4, and MW-5. The July 2023 sampling event indicated the
local groundwater flows predominately in the northeasterly direction. The previous assessment conducted
in April 2022 at the site indicated the local groundwater flows to the northeast.

Light non-aqueous phase liquid (LNAPL) was not detected. Monitoring wells MW-2, MW-4, and MW-5
contained compounds exceeding the Title 15A NCAC 02L .0202 Groundwater Quality Standards (2L
Standards). Additionally, MW-2 and MW-5 contained compounds that exceeded the Gross Contaminant
Levels (GCLs).

Based on the GCL exceedances in MW-2 and MW-5 and the presence of potable water supply wells within
1,000 feet of the site, ATC recommends reviewing alternative remedial technologies to reduce the GCLs in
MW-2 and MW-5. If funding allows, ATC recommends the installation of additional monitoring wells to
delineate the horizontal and vertical extent of the groundwater plume.

3.0 SITE DESCRIPTION

3.1 SITE CHARACTERIZATION

The former Auddies #3 site is located at 6071 Old NC Highway 49, Asheboro, Randolph County, North
Carolina. The Auddies #3 building, which is a former country store that previously sold gasoline, diesel fuel
and kerosene, is currently used by the Farmer Civitan Club for meetings and to store fund raising items. A
residential structure, which is also occupied by the Farmer Civitan Club, adjoins the Auddies #3 building to
the northeast. The former UST system consisted of one 4,000-gallon gasoline UST (T1), two 2,000-gallon
gasoline USTs (T2 and T3), one 1,000-gallon diesel UST (T4), one 1,000-gallon kerosene UST (T5), one
1,050-gallon UST of unknown use (T6), and one 400-gallon unknown use UST (T7), which were closed
either by removal or in place at the site. Six Type II monitoring wells (WR-1, MW-1A, and MW-2 through
MW-5) are located at the site. One additional monitoring well, WR-2, was previously installed at the site;
however, WR-2 was abandoned at a depth of approximately 9 feet below ground surface (bgs). One active
water supply well (WSW-1) is also located on the property.

Auddies #3
August 15, 2023
Page 4 of 7

ATC Project No. STL2392601 NCDEQ State Lead Program
The property is located in a rural residential and agricultural area of Randolph County. Adjacent properties
to the east and west of the site are used for residential purposes. The north adjoining property is
undeveloped. Two properties located to the south and across Dunbar Bridge Road from the site are
occupied by Farmers United Methodist Church and C&M Ministries, Inc. A site topographic map is included
as Figure 1. Previous assessment activities at the site have identified fourteen active potable water supply
wells located within 1,000 feet of the site. Municipal water is not available to the area. Water supply well
ownership information is included in Table 1 and a site map depicting monitoring well locations and other
pertinent site features is included as Figure 2. A potential receptor map is included as Figure 3.

3.2 SITE BACKGROUND

On December 22, 2001 Paragon Environmental Consultants, Inc. submitted a UST Closure Report
documenting the closure by removal of five USTs (one 4,000-gallon gasoline UST [T1], two 2,000-gallon
gasoline USTs [T2 and T3], one 1,000-gallon diesel UST [T4] and one 1,000-gallon kerosene UST [T5]).
Total Petroleum Hydrocarbons (TPH) Gasoline Range Organics (GRO) were detected in soil samples
collected during the removal of the tanks, which exceeded the North Carolina Action Level of 10 milligrams
per kilograms (mg/kg). Soil samples collected beneath the product lines and dispenser were below the
laboratory method detection limits. Approximately 222 tons of petroleum impacted soil was excavated
during the removal of the tanks and disposed of offsite. Several target constituents were detected in soil
samples collected after the removal of petroleum impacted soil at concentrations exceeding the Soil-to-
Groundwater Maximum Soil Contaminant Concentrations (MSCCs).

In December 2008, Withers & Ravenel completed a Phase I Limited Site Assessment (LSA) report for the
site. Two monitoring wells (WR-1 and WR-2) were installed in the former UST basin (source) but both were
reported as dry wells following installation. Soil samples collected during the installation of the monitoring
wells identified several target constituents at concentrations exceeding the Soil-to-Groundwater MSCCs.
Municipal water was not available to the area. Twenty-two water supply wells were identified within 1,500
feet of the site. The site was supplied with water from a water supply well (WSW-1) located in the crawl
space of the attached residential structure. No surface water bodies were reported to be within 500 feet of
the site.

In February 2010, S&ME, Inc. (S&ME) conducted a groundwater monitoring event, which included the
installation and sampling of monitoring well MW-1A and the sampling of the onsite water supply well (WSW-
1). The results of the monitoring event were summarized in a Well Installation and Monitoring Report dated
March 15, 2010. Monitoring well MW-1A was installed within the former UST basin. Existing monitoring
wells WR-1 and WR-2 were dry. WR-2 appeared to have been abandoned to a depth of 9.5 feet bgs. Two
existing USTs (T6 and T7) were observed on the site by S&ME personnel. Tank T6 was observed near the
southwest corner of the building adjacent to a concrete sidewalk. Tank 7, which appeared to be a heating
oil tank, was observed at the northeast corner of the building. Several target constituents were detected in
groundwater samples collected from MW-1A at concentrations exceeding the 2L Standards. Two target
constituents (benzene and 1,2-dibromomethane) were detected at concentrations exceeding the GCLs. No
target constituents were detected in the sample collected from WSW-1 at concentrations exceeding the
laboratory method detection limits.

In August 2010, S&ME sampled MW-1A and three water supply wells (WSW-6, WSW-7, and WSW-18).
Benzene was detected in MW-1A at concentrations exceeding the GCL. No target constituents were
detected in the samples collected from the sampled water supply wells.

In December 2011, S&ME sampled MW-1A and three water supply wells (WSW-1, WSW-7, and WSW-18).
S&ME personnel were informed that the properties located at 4722 Dunbar Bridge Road (WSW-3) and
4716 Dunbar Bridge Road (WSW-4) share a well. No target constituents were detected in the samples
collected from the sampled water supply wells. Several target constituents were detected in MW-1A at
concentrations exceeding the 2L Standards but below the GCLs.

Auddies #3
August 15, 2023
Page 5 of 7

ATC Project No. STL2392601 NCDEQ State Lead Program
In June and July 2012, S&ME conducted a groundwater monitoring event, which included the installation
of monitoring wells MW-2, MW-3 and MW-4. Monitoring wells MW-2 and MW-3 were installed downgradient
of the former UST basin. Monitoring well MW-4 was installed next to existing tank T6 located near the
southwest corner of the building. Soil boring B-1 was advanced next to Tank T6 during the installation of
monitoring well MW-4. TPH-GRO was detected in the soil sample collected from B-1 at a depth of
approximately 18 feet bgs at a concentration of 12 mg/kg. Groundwater samples were not collected from
MW-4. Three target constituents (1,2-dibromoethane, benzene and total chromium) were detected at
concentrations exceeding the Soil-to-Groundwater MSCCs at B-1. Benzene and 1,2-dibromoethane were
detected in MW-2 at concentrations exceeding the GCLs. Groundwater was reported to flow to the
northwest.

In July 2015, S&ME conducted a monitoring event at the site. Groundwater samples were collected from
monitoring wells MW-1A through MW-4, as well as water supply wells WSW-1, WSW-6, WSW-7, and
WSW-18. WR-1 and WR-2 were each dry during the sampling event. Several petroleum constituents were
identified in MW-1A through MW-4. Benzene concentrations in MW-1A, MW-2, and MW-4 exceeded the
GCLs. 1,2-Dibromoethane concentrations in MW-2 also exceeded the GCL. No constituents were detected
in the water supply well samples.

In July 2018, S&ME conducted a monitoring event at the site. Groundwater samples were collected from
monitoring wells MW-2, MW-3, and MW-4, as well as water supply wells WSW-1, WSW-6, WSW-7, and
WSW-18. Benzene concentrations in MW-2 and MW-4 exceeded the GCL. No constituents, with the
exception of chloroform, were detected in the water supply well samples.

In August 2018, S&ME performed a limited geophysical survey at the site to mark the locations of tank T-6
and the suspected second UST (T-7). An Initial Abatement Action report, dated June 10, 2019, documented
the closure by removal of T-6 in April 2019. During the excavation activities, T-7 was found to have been
previously closed-in-place, and was not removed. Approximately 101 tons of petroleum impacted soils were
excavated and transported offsite for disposal. Four soil samples were collected from the sidewalls of the
excavated area following the abatement activities. Petroleum constituents were detected in all four samples
exceeding the Residential MSCCs. Additionally, concentrations exceeded the Industrial/Commercial
MSCCs in the sample collected adjacent to T-7.

On January 10, 2020, S&ME submitted a Corrective Action Performance/Monitoring Report documenting
the installation of monitoring well MW-5 and subsequent sampling event. Two soil samples were collected
during the installation of MW-5 (MW-5 - 7.5 and MW-5 - 20). Petroleum constituent concentrations in both
samples exceeded the Soil-to-Groundwater MSCCs, while concentrations in MW-5 – 7.5 also exceeded
Residential MSCCs. Groundwater samples were collected from monitoring MW-2, MW-4, and MW-5, as
well as water supply wells WSW-1, WSW-5, WSW-6, and WSW-7. Constituent concentrations were
detected in monitoring wells MW-2 and MW-5 exceeding the GCLs. No constituents, with the exception of
chloroform, were detected in the water supply well samples exceeding the method detection limits.

On March 2, 2021, ATC submitted a Groundwater Monitoring Report documenting a sampling event, which
occurred in February 2021. Groundwater samples were collected from monitoring MW-1A, MW-4, and MW-
5, as well as water supply wells WSW-1. Constituent concentrations were detected in monitoring well MW-
5 exceeding the GCLs. No constituents were detected in WSW-1 exceeding the method detection limits.

On November 9, 2021, ATC submitted a Groundwater Monitoring Report documenting a sampling event,
which occurred in September 2021. Groundwater samples were collected from monitoring MW-1A, MW-2,
MW-3, MW-4, and MW-5. Constituent concentrations were detected in monitoring wells MW-2 and MW-5
exceeding the GCLs.

On May 16, 2022, ATC submitted a Groundwater Monitoring Report documenting a sampling event, which
occurred in March 2022. Groundwater samples were collected from monitoring MW-2, MW-4, and MW-5.
Constituent concentrations were detected in monitoring wells MW-2 and MW-5 exceeding the GCLs.
.
Auddies #3
August 15, 2023
Page 6 of 7

ATC Project No. STL2392601 NCDEQ State Lead Program
4.0 MMPE ACTIVITIES

4.1 MMPE EVENT

Eastern was subcontracted to perform a MMPE event from June 5 to June 9, 2023. Monitoring wells MW-
2, MW-4, and MW-5 were used as the extraction points for the event. The event was conducted to reduce
groundwater contaminant concentrations. Prior to the event, wells MW-2, MW-4, and MW-5 were gauged
to record the groundwater elevation. Light non-aqueous phase liquid (LNAPL) was not detected in any of the
monitoring wells. Monitoring well construction details and groundwater elevation data are included as Table
2.

Prior to the start of the event, the intake for the vacuum piping was set approximately 2 feet below the top
of the water column in the extraction wells and was adjusted throughout the event to maximize volume
recovery. The MMPE event was initiated at 10:00 a.m. on June 5, 2023.

The event was concluded at 10:00 a.m. on June 9, 2023. A tanker change out was required on June 7,
2023. During that time, groundwater samples were collected from monitoring wells MW-2, MW-4, and MW-
5. Samples were collected in laboratory-approved containers, packed in ice and delivered under chain of
custody protocol to Pace Analytical in Mount Juliet, Tennessee for analyses. Groundwater samples were
analyzed for VOCs by Environmental Protection Agency (EPA) Method 602. Approximately 9,951 gallons
of impacted groundwater and 94.85 gallons of petroleum vapor were recovered during the event. Field
notes are included as Appendix A. During the event, vacuum at the recovery pump stabilized at
approximately 25.0 inches of mercury. Airflow rates ranged from 289 to 411 feet per minute. System
temperature ranged from 67 to 114 degrees Fahrenheit and humidity maintained 100 percent. Field gauged
VOCs decreased from 6,040 parts per million (ppm) to 1,171 ppm throughout the event. The MMPE report
and waste disposal manifests are included as Appendix B. The laboratory analytical report and chain-of-
custody forms are included in Appendix C.

5.0 GROUNDWATER ASSESSMENT ACTIVITIES

5.1 GROUNDWATER LEVELS

On July 7, 2023, groundwater level measurements and samples were collected from monitoring wells MW-
2, MW-4, and MW-5. LNAPL was not observed in the monitoring wells. Depth to groundwater
measurements ranged from 41.48 feet bgs in MW-2 to 42.68 feet bgs in MW-4. Monitoring well construction
details and groundwater elevation data are summarized in Table 2. Field parameter data including
temperature, dissolved oxygen, conductivity, pH, and oxygen reduction potential were recorded during the
sampling event and are included in Table 3. Field notes from the sampling event are included in Appendix
A. Photographs of the monitoring well locations are included in Appendix D. A Groundwater Elevation
Contour Map is included as Table 4.

5.2 GROUNDWATER QUALITY

On July 7, 2023, groundwater samples were collected from monitoring wells MW-2, MW-4, and MW-5.
Samples were collected in laboratory-approved containers, packed in ice and delivered under chain of
custody protocol to to Pace Analytical in Mount Juliet, Tennessee for analyses. Groundwater samples
were analyzed for VOCs by Environmental Protection Agency (EPA) Method 602.

Analytical results indicated toluene (1,800 µg/L), ethylbenzene (1,320 µg/L), total xylenes (4,540 µg/L),
MTBE (3,230 µg/L), diisopropyl ether (262 µg/L), isopropylbenzene (74.2 J µg/L), n-propylbenzene (162
µg/L), 1,2,4-trimethylbenzene (1,120 µg/L), and naphthalene (425 µg/L) were detected above the 2L
Auddies #3
August 15, 2023
Page 7 of 7

ATC Project No. STL2392601 NCDEQ State Lead Program
Standard in MW-2. Benzene (921 µg/L), MTBE (4,280 µg/L), diisopropyl ether (730 µg/L), naphthalene
(50.5 µg/L), and 1,2- dichloroethane (187 µg/L) were detected above the 2L Standard in MW-4. Toluene
(1,850 µg/L), ethylbenzene (1,300 µg/L), total xylenes (3,680 µg/L), MTBE (15,000 µg/L), diisopropyl ether
(991 µg/L), p-isopropyltoluene (37.6 J µg/L), naphthalene (405 µg/L), n-propylbenzene (133 µg/L), 1,2,4-
trimethylbenzene (841 µg/L), and 4-methyl-2-petanone (233 µg/L) were detected above the 2L Standard in
MW-5. Benzene (12,100 µg/L) and 1,2-dichloroethane (439 µg/L) exceeded the GCLs in MW-2. Benzene
(20,600 µg/L) and 1,2-dichloroethane (667 µg/L) exceeded the GCLs in MW-5. Current monitoring well
groundwater analytical data is summarized in Table 4. Historical monitoring well groundwater analytical
data is summarized in Table 5. Historical water supply well analytical data is summarized in Table 6. A
Dissolved Benzene Isoconcentration Map is included as Figure 5, and Additional Conaminants of Concern
in Groundwater are shown on Figure 6.

A comparison of the analytical results from the current sampling event (July 2023) to the previous sampling
event (April 2022) for each well indicated an increase in petroleum constituent concentrations in MW-2 and
MW-5. There is a decrease in petroleum constituent concentrations in MW-4. The laboratory analytical
report and chain-of-custody forms are included in Appendix C.

As part of ATC’s quality assurance and quality control (QA and QC) measures, a data review of the
laboratory report was conducted. During the review, it was concluded that samples were received by the
laboratory in acceptable condition and properly preserved. Samples were analyzed within the correct
holding times, and the chain of custody was properly completed by all parties. The laboratory QC report
shows an internal blank was analyzed for each method that was used for the original samples. The
laboratory fortified blank (LFB) and laboratory control sample (LCS) data results were also provided for
each analytical method. Refer to the laboratory report in Appendix C for details regarding QA results for
the laboratory samples and any noted exceptions. Overall, ATC concludes that the laboratory results are
usable and any exceptions do not significantly impact the conclusions presented in this report.

6.0 CONCLUSIONS AND RECOMMENDATIONS

On behalf of the Trust Fund Branch of the UST Section, ATC completed a MMPE and groundwater
monitoring event for the Auddies #3 site located at 6071 Old NC Highway 49, Asheboro, Randolph County,
North Carolina. Groundwater samples were collected from monitoring wells MW-2, MW-4, and MW-5.

An MMPE event performed from June 5 to June 9, 2023, generated approximately 9,951 gallons of
impacted groundwater and recovered 94.85 gallons of petroleum vapor. Monitoring wells MW-2, MW-4,
and MW-5 were used as the extraction points for the event.

The July 2023 sampling event indicated the local groundwater flows predominately in the southeasterly
direction. LNAPL was not detected in the gauged monitoring wells. Monitoring wells MW-2, MW4, and MW-
5 contained compounds exceeding the 2L Standards. Additionally, MW-2 and MW-5 contained compounds
exceeded the GCLs. A comparison of the analytical results from the current sampling event (July 2023) to
the previous sampling event (April 2022) for each well indicated an increase in petroleum constituent
concentrations in MW-2 and MW-5. There is a decrease in petroleum constituent concentrations in MW-4.
It doesn’t appear that the MMPE events have been effective in the GCL reduction at the site.

Based on the GCL exceedances in MW-2 and MW-5 and the presence of potable water supply wells within
1,000 feet of the site, ATC recommends reviewing alternative remedial technologies to reduce the GCLs in
MW-2 and MW-5. If funding allows, ATC recommends the installation of additional monitoring wells to
delineate the horizontal and vertical extent of the groundwater plume.

Auddies #3

TABLES

TABLE 1
WATER SUPPLY WELL INFORMATION
AUDDIES #3
6071 OLD NC HIGHWAY 49
ASHEBORO, RANDOLPH COUNTY, NORTH CAROLINA
NCDEQ INCIDENT #23926
Well ID Property Owner Well Address Property Owner's
Address PIN ID#Well Use
Distance from
Source Area
(ft.)
Comments
WSW-1
(Site)
Farmer Civitan Club, Inc.
(336-465-1470)
6071 Old NC Highway 49
Asheboro, NC 27205
4297 Harris Family Lane
Asheboro, NC 27205 7609949108 Active-Potable 50 SE Well is located in crawl space of onsite adjoining residential
structure.
WSW-2
Candace Wells Hammond
William Heafner (336-629-2600)
Triad Rental Properties (336-626-7235)
4730 Dunbar Bridge Rd
Asheboro, NC 27205
6056 Old Highway 49
Asheboro, NC 27205 7619040038 Active-Potable 210 SE
Nearest residential property to the east.
Owner is out of the country, contact William Heafner for access.
113 Worth St, Asheboro, NC 27203
WSW-3 Leann L. Smith
(336-241-5251)
4722 Dunbar Bridge Rd
Asheboro, NC 27205
4220 River Bluff Drive
Denton, NC 27239 7619042105 Inactive 300 SE Property at WSW-3 is connected to WSW-4
WSW-4 Lawson Dempsey Lowe
(336-857-2872)
4716 Dunbar Bridge Rd
Asheboro, NC 27205
4638 Dunbar Bridge Rd
Asheboro, NC 27205 7619042087 Active-Potable 380 SE Property at WSW-3 is connected to WSW-4
WSW-5 Farmer United Methodist Church 6127 Old NC Hwy 49
Denton, NC 27239
2473 Falling Oak Rd
Asheboro, NC 27205 7609934882 Active-Potable 450 SW Property located southwest of the site.
WSW-6 Mary K. Walker 4637 Farmer Denton Rd
Denton, NC 27239
4740 Old Winston Rd
Kernersville, NC 27284 7609941110 Active-Potable 460 W Property is adjacent to site to the west
WSW-7 Wilford Hammond 4612 Farmer Denton Rd
Denton, NC 27239
4612 Farmer Denton Rd
Denton, NC 27239 7609946692 Active-Potable 330 NW Property is adjacent to site to the northwest
WSW-8 Candace Hammond
William Heafner (336-629-2600)
6054 Old Highway 49
Asheboro, NC 27205
6056 Old Highway 49
Asheboro, NC 27205 7619057861 Active-Potable 220 N
Property is adjacent to site to the north-northwest.
Owner is out of the country, contact William Heafner for access.
113 Worth St, Asheboro, NC 27203
WSW-9 Lawson Dempsey Lowe 4626 Dunbar Bridge Rd
Asheboro, NC 27205
4638 Dunbar Bridge Rd
Asheboro, NC 27205 7619034977 Active-Potable 550 SE
WSW-10 Amy Nelson Owens 4582 Dunbar Bridge Rd
Asheboro, NC 27205
4598 Dunbar Bridge Rd
Asheboro, NC 27205 7619039913 Active-Potable 860 SE
WSW-14 Rodney C Hall 3129 Grange Hall Rd
Asheboro, NC 27205
3129 Grange Hall Rd
Asheboro, NC 27205 7619033661 Active-Potable 610 SE
WSW-15 Carolyn Wilson 3137 Grange Hall Rd
Asheboro, NC 27205
3137 Grange Hall Rd
Asheboro, NC 27205 7619033318 Active-Potable 880 SE
WSW-18 Love of God Baptist Church
(336-475-1031)
4751 Dunbar Bridge Rd
Asheboro, NC 27205
5606 S. NC Highway 109
Thomasville, NC 27205 7609936350 Active-Potable 440 S Property is adjacent to site to the south.
WSW-21 Michael Blackwelder 5976 Old NC Highway 49
Asheboro, NC 27205
5976 Old NC Highway 49
Asheboro, NC 27205 7619044882 Active-Potable 920 NE
WSW-22 Ritchie & Kimberly Hogan 5961 Old Highway 49
Asheboro, NC 27205
5961 Old Highway 49
Asheboro, NC 27205 7619141569 Active-Potable 760 NE
Notes:
1. Only water supply wells located within 1,000 feet of the site are included.
2. The owner of WSW-2 and WSW-8 (Candace Hammond) is out of the country. Contact William Heafner for access.
3. Residence at WSW-2 is a rental property. Contact Triad Rental Properties at least 24 hrs prior to WSW sampling.
TABLE 2
MONITORING WELL CONSTRUCTION AND GROUNDWATER ELEVATION DATA
AUDDIES #3
6071 OLD NC HIGHWAY 49
ASHEBORO, RANDOLPH COUNTY, NORTH CAROLINA
NCDEQ INCIDENT #23926
Well ID Date
Installed
Date
Water Level Measured
Well Casing
Diameter
(inches)
Well Casing
Depth
(ft bgs)
Screen
Interval
(ft bgs)
Total
Depth
(ft bgs)
Top of Casing
Elevation
(feet)
Depth to
Water from Top
of Casing
(ft bgs)
Groundwater
Elevation
(feet)
Comments
9/10/2008 Dry NS
9/22/2008 Dry NS
10/3/2008 Dry NS
2/8/2010 Dry NS
8/26/2010 Dry NS
12/19/2011 Dry NS
7/5/2012 Dry NS
7/22/2015 Dry NS
2/2/2021 NM NS Could not locate
9/24/2021 37.76 NS
10/3/2008 Dry NS
2/8/2010 Dry NS
8/26/2010 Dry NS
12/19/2011 Dry NS
7/5/2012 Dry NS
7/22/2015 Dry NS
2/2/2021 NM NS Could not locate
9/24/2021 Dry NS Obstruction at 9 ft bgs.
2/8/2010 49.91 48.46
8/26/2010 49.03 49.34
12/19/2011 56.65 41.72
7/5/2012 54.25 44.12
7/22/2015 48.41 49.96
2/2/2021 NM NM Could not locate
9/24/2021 39.02 59.35
7/5/2012 58.80 40.00
7/22/2015 48.87 49.93
7/2/2018 46.79 52.01
12/4/2019 44.75 54.05
2/2/2021 35.71 63.09
9/24/2021 39.42 59.38
3/14/2022 40.04 58.76
3/18/2022 (Post-MMPE)42.16 56.64
4/18/2022 38.44 60.36
6/5/2023 40.50 58.30
6/9/2023 (Post-MMPE)43.32 55.48
7/7/2023 41.48 57.32
7/5/2012 53.60 43.71
7/22/2015 47.68 49.63
7/2/2018 45.59 51.72
12/4/2019 43.61 53.70
2/2/2021 NM NM Could not locate
9/24/2021 38.16 59.15
7/5/2012 55.85 44.15
7/22/2015 50.60 49.40
7/2/2018 47.99 52.01
12/4/2019 45.99 54.01
2/2/2021 37.31 62.69
9/24/2021 40.63 59.37
3/14/2022 41.24 58.76
3/18/2022 (Post-MMPE)42.31 57.69
4/18/2022 39.54 60.46
6/5/2023 41.68 58.32
6/9/2023 (Post-MMPE)44.10 55.90
7/7/2023 42.68 57.32
12/4/2019 45.28 54.26
2/2/2021 36.77 62.77
9/24/2021 40.05 59.49
3/14/2022 40.68 58.86
3/18/2022 (Post-MMPE)36.52 63.02
4/18/2022 39.07 60.47
6/5/2023 41.14 58.40
6/9/2023 (Post-MMPE)45.81 53.73
7/7/2023 42.13 57.41
Notes:
5. NS = Not Surveyed.
6. MMPE = Mobile Multi-Phase Extraction.
35.30 - 55.30 55.5 99.54
MW-4 6/25/2012 2 Unknown Unknown 60
6/25/2012 2 44 44 - 59
100.00
MW-2 6/25/2012 2 47 47 - 62
WR-2 appears to be
abandoned to a depth of
approximately 9 ft bgs.
98.37
59 97.31
Unknown Unknown 51.5
62
Unknown 43
WR-2
1. TOC = Top of casing.
2/3/2010 2 42 42 - 62 62
MW-3
NS
NS
MW-1A
10/3/2008 2
98.8
WR-1 9/10/2008 2 Unknown
MW-5 11/13/2019 2
4. NM = Not Measured.
2. Monitoring well MW-4 is the site benchmark at 100.00 feet.
3. ft bgs = Feet below ground level.
35.30
TABLE 3
FIELD PARAMETERS
AUDDIES #3
6071 OLD NC HIGHWAY 49
ASHEBORO, RANDOLPH COUNTY, NORTH CAROLINA
NCDEQ INCIDENT #23926
MW-1A 9/24/2021 21.9 1.23 213.8 5.81 113.5
2/2/2021
9/24/2021
4/18/2022
7/7/2023
MW-3 9/24/2021 21.5 1.61 229.6 6.19 80.4
2/2/2021 16.9 0.85 657 6.50 -30.9
9/24/2021 19.8 2.21 594 6.50 -30.5
4/18/2022 17.7 1.29 605 6.31 27.6
7/7/2023 23.4 2.60 610 8.12 -93.0
2/2/2021
9/24/2021 21.5 1.98 661 6.57 -24.2
4/18/2022
7/7/2023
Notes:
1. oC = Degrees Celsius.
2. mg/L = milligrams per liter.
3. µs/cm = micro Siemens per centimeter.
4. SU = Standard Units.
5. ORP = Oxidation Reduction Potential.
6. mV = Millivolts.
Stong Odor, No Field Readings
Sheen, Stong Odor, No Field Readings
Sheen, Stong Odor, No Field Readings
Stong Odor, No Field Readings
Stong Odor, No Field ReadingsMW-2
MW-4
MW-5
Sheen, Stong Odor, No Field Readings
Sheen, Stong Odor, No Field ReadingsTemperature (oC)Dissolved Oxygen (mg/L)Conductivity (us/cm)pH (SU)ORP (mV)WELL ID Date
Collected
TABLE 4
GROUNDWATER ANALYTICAL RESULTS
AUDDIES #3
6071 OLD NC HIGHWAY 49
ASHEBORO, RANDOLPH COUNTY, NORTH CAROLINA
NCDEQ INCIDENT #23926
WELL ID Date
Collected
BenzeneTolueneEthylbenzeneXylenes (total)Methyl Tert-Butyl EtherNaphthalenen-Butylbenzenesec-Butylbenzene1,2-DichloroethaneDi-isopropyl etherIsopropylbenzenep-Isopropyltoluene2-Butanone (MEK)4-Methyl-2-Pentanone (MIBK)n-PropylbenzeneStyrene1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneMW-2 07/07/23 12,100 1,800 1,320 4,540 3,230 425 24.0 J 10.1 J 439 262 74.2 9.93 J <500 <500 162 21.5 J 1,120 357
MW-4 07/07/23 921 176 92.5 129.7 J 4,280 50.5 J <50.0 <50.0 187 730 54.8 17.9 J <500 69.6 J 9.24 J <50.0 36.7 J 24.7 J
MW-5 07/07/23 20,600 1,850 1,300 3,680 15,000 405 21.4 J 9.44 J 667 991 62.1 37.6 J 760 233 J 133 <50.0 841 302
1 600 600 500 20 6 70 70 0.4 70 70 25 4,000 100 70 70 400 400
5,000 260,000 80,000 50,000 20,000 6,000 5,900 8,800 400 70,000 30,500 11,700 4,000,000 100,000 26,100 70,000 28,500 24,100
Notes:
1. "<" or ND = Not detected at or above the laboratory reporting limit or method detection limit.
2. Concentrations are reported in micrograms per liter (ug/l) = parts per billion (ppb).
3. Concentrations in BOLD equal or exceed the corresponding NCDEQ Groundwater Quality 2L Standard (2L Standard).
4. GCL = Gross Contamination Level.
5. Concentrations in ITALICS equal or exceed the corresponding GCL.
6. J = Indicates constituent was detected above laboratory detection limit but below laboratory reporting limit.
2L Standard
GCL
ANALYTICAL METHOD Volitile Organic Compounds by EPA Method 6200B
TABLE 5
HISTORICAL GROUNDWATER ANALYTICAL RESULTS
AUDDIES #3
6071 OLD NC HIGHWAY 49
ASHEBORO, RANDOLPH COUNTY, NORTH CAROLINA
NCDEQ INCIDENT #23926
WELL ID Date
Collected
BenzeneTolueneEthylbenzeneXylenes (total)Acetone2-Butanone (MEK)2-Hexanone (MBK)ChloroformMethyl Tert Butyl Ethern-Butylbenzenesec-ButylbenzeneMethylene chlorideDiisopropyl etherIsopropylbenzeneStyreneNaphthalenen-Propylbenzene1,2,4-Trimethylbenzene1,3,5-Trimethylbenzenep-Isopropyltoluene1,2-Dichloropropane1,2-Dichloroethane1,2-Dibromoethane (Ethylene Dibromide)C5-C8 AliphaticsC9-C12 AliphaticsC9-C10 Aromatics02/08/10 5,400 370 560 4,000 ND ND ND ND 940 17 11 NA 41 70 ND 340 130 1,100 430 17 ND 130 57 21,000 5,400 4,900
08/26/10 10,000 700 970 5,800 68 ND ND ND 1,500 ND ND NA 82 ND 68 270 130 890 290 ND ND 280 <50 NA NA NA
12/19/11 3,200 140 370 2,700 380 J ND ND ND 1,300 140 75 ND 62 140 ND 420 270 2,100 860 83 NA 130 <20 NA NA NA
07/05/12 1,800 150 240 3,200 ND ND ND ND 160 110 27 NA 11 91 12 270 200 1,500 610 34 NA 16.0 <0.5 NA NA NA
07/22/15 5,210 441 557 3,065 NA ND ND ND 741 <25 <25 108 234 61.7 <25 230 116 921 338 NA <25 193 33.8 NA NA NA
2/2/2021*1,430 205 153 694 <200 <500 <20 <10 546 <10 <10 <10 120 21.1 <10 78.3 26.4 210 68.3 <10 <6.0 47.6 <10 NA NA NA
09/24/21 647 22.7 24.3 157 21.6 J <250 <10 <5.0 65.1 10.3 <5.0 2.0 J 5.5 16.2 1.7 J 92.2 19.3 142 60.7 4.9 J <3.0 6.5 <5.0 NA NA NA
07/05/12 10,000 490 470 2,500 100 ND ND ND 24 ND ND NA 110 ND 12 ND ND 320 110 ND NA 370 130 NA NA NA
07/22/15 7,750 727 776 3,950 NA ND ND ND 1,640 <5 <5 21.1 73.3 37 10.3 259 70.8 686 238 NA <5 260 76.6 NA NA NA
07/02/18 8,100 6,700 2,500 12,400 <5,000 450 J ND 22 J 660 67 33 J <500 63 160 31 J 820 350 2,900 850 26 J <50 <100 41 J NA NA NA
12/04/19 8,600 5,200 1,800 8,900 <5,000 <500 <500 <50 4,600 34 J 20 J <500 220 120 33 J 720 260 1,700 680 <50 <50 600 170 1 NA NA NA
2/2/2021*
09/24/21 9,680 2,710 1,570 7,070 <2,000 <5,000 <200 <100 4,770 40.4 J <100 <100 165 92.3 J <100 812 238 2,110 622 <100 <60 449 <100 NA NA NA
04/18/22 9,330 2,260 1,050 5,800 <2,000 <5,000 <200 <100 3,780 <100 <100 101 194 70.1 J <100 458 158 1,300 413 <100 <60 374 122 NA NA NA
07/07/23 12,100 1,800 1,320 4,540 <2,500 <500 NA <250 3,230 24.0 J 10.1 J <250 262 74.2 21.5 J 425 162 1,120 357 9.93 J <50.0 439 <50.0 NA NA NA
07/05/12 0.56 ND ND 0.70 J ND ND ND ND 3.5 ND ND NA ND ND ND ND ND ND ND ND NA 3.2 <0.5 NA NA NA
07/22/15 4.6 <0.5 <0.5 <1.5 NA ND ND ND 4.5 <0.5 <0.5 <2 0.66 <0.5 <0.5 <2 <0.5 <0.5 <0.5 NA <0.5 0.7 <0.5 NA NA NA
07/02/18 7.4 <0.50 <0.50 0.23 J <50 <5.0 ND <0.50 31 <0.50 <0.50 <5.0 6.1 0.20 J <0.50 <0.50 <0.50 0.19 J <0.50 <0.50 <0.50 3.6 <0.50 NA NA NA
02/02/21
09/24/21 211 5.6 18.4 10.6 6.8 J <130 <5.0 <2.5 384 <2.5 <2.5 1.1 J 54.5 3.1 <2.5 16.7 3.5 5.2 3.4 <2.5 <1.5 29.9 <2.5 NA NA NA
07/22/15 6,670 90.3 111 725 NA ND ND ND 1,550 <10 <10 46.8 1,060 20 <10 291 18.4 228 102 NA 10.9 326 <10 NA NA NA
07/02/18 7,600 51 220 380 <5,000 <500 ND <50 4,800 <50 <50 <500 1,100 38 J <50 640 28 J 260 110 <50 <50 300 <50 NA NA NA
12/04/19 950 12 39 31 J <1,200 <120 <120 12 2,000 <12 <12 <120 410 16 <12 120 J 6.5 J 7.2 J 11 J 9.5 J <12 120 0.042 NA NA NA
02/02/21 821 <25 75.2 61.7 <500 <1,300 <50 <25 4,400 <25 <25 <25 573 49.6 <25 55.9 <25 36.4 <25 <25 <15 137 <25 NA NA NA
09/24/21 1,290 120 137 121 67.6 J <500 138 <10 5,800 E <10 <10 15.2 758 47.6 <10 117 14.9 80.3 47.3 25.1 5.8 J 198 <10 NA NA NA
04/18/22 1,290 149 132 147 <1,000 <2,500 <100 <50 6,520 <50 <50 55.6 809 95.2 <50 113 <50 81.0 45.1 J 27.5 J <30 303 <50 NA NA NA
07/07/23 921 176 92.5 129.7 J <2,500 <500 NA <250 4,280 <50.0 <50.0 <250 730 54.8 <50.0 50.5 J 9.24 J 36.7 J 24.7 J 17.9 J <50.0 187 <50.0 NA NA NA
12/04/19 9,800 4,000 990 6,500 19,000 4,500 860 J <120 2,200 <120 <120 <1200 910 90 J <120 <1,200 180 1,200 500 <120 <120 550 18 45,000 <4,000 6,900
02/02/21 23,600 23,900 1,720 9,620 <2,000 <5,000 <200 <100 17,200 <100 <100 <100 1,360 <100 <100 582 146 1,280 345 <100 <60 609 236 NA NA NA
09/24/21 16,700 11,900 1,200 5,830 <2,000 <5,000 <200 <100 14,900 <100 <100 55.1 J 755 41.4 J <100 490 102 940 239 <100 <60 522 179 NA NA NA
04/18/22 16,700 16,400 1,240 6,710 <2,000 <5,000 270 <100 11,800 <100 <100 103 1,210 49.4 J <100 390 106 907 269 34.4 J <60 550 185 NA NA NA
07/07/23 20,600 1,850 1,300 3,680 <2,500 760 NA <250 15,000 21.4 J 9.44 J <250 991 62.1 <50.0 405 133 841 302 37.6 J <50.0 667 <50.0 NA NA NA
1 600 600 500 6,000 4,000 40 70 20 70 70 400 70 70 70 6 70 400 400 25 0.6 0.4 0.02 400 700 200
5,000 260,000 80,000 50,000 6,000,000 4,000,000 40,000 70,000 20,000 5,900 8,800 400,000 70,000 30,500 70,000 6,000 26,100 28,500 24,100 11,700 600 400 50 NE NE NE
Notes:
1. "<" or ND = Not detected at or above the laboratory reporting limit or method detection limit.
2. Concentrations are reported in micrograms per liter (ug/l) = parts per billion (ppb).
3. Concentrations in BOLD equal or exceed the corresponding NCDEQ Groundwater Quality 2L Standard (2L Standard).
4. GCL = Gross Contamination Level.
5. Concentrations in ITALICS equal or exceed the corresponding GCL.
6. NE = Not established.
7. J = Indicates constituent was detected above laboratory detection limit but below laboratory reporting limit.
8. NA = Not Analyzed or original lab report not provided.
9. E = Value exceeds calibration range.
10. 1 = Analyzed by Method 504.1.
11. * = Sample labels were switched during sampling event. Therefore, labels do not match actual sample location.
2L Standard
GCL
ANALYTICAL METHOD
MW-4
MW-5
MADEP-VPHVolitile Organic Compounds by EPA Method 6200B
MW-1A
MW-3
Not Sampled, Could Not Locate
Not Sampled, Could Not Locate
MW-2
TABLE 6
WATER SUPPLY WELL ANALYTICAL RESULTS
AUDDIES #3
6071 OLD NC HIGHWAY 49
ASHEBORO, RANDOLPH COUNTY, NORTH CAROLINA
NCDEQ INCIDENT #23926
WELL ID Date
Collected
BenzeneTolueneEthylbenzeneXylenes (total)Chloroform02/08/10 ND ND ND ND ND
12/19/11 ND ND ND ND ND
07/22/15 <0.5 <0.5 <0.5 <1.5 ND
07/02/18 <0.50 <0.50 <0.50 <1.50 0.34 J
02/02/21 <0.50 <0.50 <0.50 <0.50 <0.50
09/24/21
WSW-5 (6127
Old NC Hwy 49)12/04/19 <0.50 <0.50 <0.50 <1.50 0.37 J
08/26/10 ND ND ND ND ND
07/22/15 <0.5 <0.5 <0.5 <1.5 ND
07/02/18 <0.50 <0.50 <0.50 <1.50 0.53
12/04/19 <0.50 <0.50 <0.50 <1.50 0.27 J
08/26/10 ND ND ND ND ND
12/19/11 ND ND ND ND ND
07/22/15 <0.5 <0.5 <0.5 <1.5 ND
07/02/18 <0.50 <0.50 <0.50 <1.50 0.35 J
12/04/19 <0.50 <0.50 <0.50 <1.50 <0.50
08/26/10 ND ND ND ND ND
12/19/11 ND ND ND ND ND
07/22/15 <0.5 <0.5 <0.5 <1.5 ND
07/02/18 <0.50 <0.50 <0.50 <1.50 0.87
1 600 600 500 70
5,000 260,000 80,000 50,000 70,000
Notes:
1. "<" or ND = Not detected at or above the laboratory reporting limit or method detection limit.
2. Concentrations are reported in micrograms per liter (ug/l) = parts per billion (ppb).
3. Concentrations in BOLD equal or exceed the corresponding NCDEQ Groundwater Quality 2L Standard (2L Standard).
4. GCL = Gross Contamination Level.
5. Concentrations in ITALICS equal or exceed the corresponding GCL.
6. NE = Not established.
7. J = Indicates constituent was detected above laboratory detection limit but below laboratory reporting limit.
8. NA = Not Analyzed or original lab report not provided.
Volitile Organic Compounds by EPA Method 6200BANALYTICAL METHOD
GCL
WSW-6
(4637 Farmer Denton
Road)
WSW-7
(4612 Farmer Denton
Road)
WSW-18
(4751 Dunbar Bridge
Road)
2L Standard
WSW-1
(6071 Old NC
Hwy 49)
Unable to Sample.
Auddies #3

FIGURES

OLD NORTH CAROLINA HIGHWAY 49DUNBAR BRIDGE ROADMW-3WR-2MW-1AWR-1MW-2MW-5MW-4WSW-1TANK 5TANK 4TANK 3TANK 2TANK 1FORMERDISPENSERISLANDFORMERDIESEL/KEROSENEDISPENSERSTANK 7TANK 6SITELEGEND:SITE PROPERTY LINENOTE: ALL LOCATIONS ARE APPROXIMATEPARCEL LINEMW-1MONITORING WELLWell IdentificationWSW-1WATER SUPPLY WELLWell Identification10SCALE: 1" = 30'02030NFigure:Drawing File:
Project Number:
Ckd. By:
Drn. By:
App'd By:
Ckd. Date:Scale:Date:H:\2023\1 OTHER OFFICES\NORTH CAROLINA\NCDEQ-STATE LEAD\AUDDIE'S 3\STL2392601-SITE.DWG, FIG2
SITE MAP08/04/2023SEE LOWER LEFTAUDDIES #3
6071 OLD NORTH CAROLINA HIGHWAY 49
ASHEBORO, NORTH CAROLINA
NCDEQ INCIDENT #23926
STL2392601AS SHOWNDH
BB2NOTES:
1.Features shown are not an authoritative location, nor are they presented
to a stated accuracy.
COORDINATE SYSTEM:
NAD 1983 NORTH CAROLINA STATE PLANE FIPS 3200, US SURVEY FEET
SITE
1,500' RADIUS1,000' RADIUS500' RADIUS
OLD NORTH CAROLINA HIGHWAY 49DUNBAR BRIDGE ROADMW-3WR-2MW-1AWR-1MW-2MW-5MW-4WSW-1TANK 5TANK 4TANK 3TANK 2TANK 1FORMERDIESEL/KEROSENEDISPENSERSTANK 7TANK 6SITELEGEND:SITE PROPERTY LINENOTE: ALL LOCATIONS ARE APPROXIMATEPARCEL LINEWSW-1WATER SUPPLY WELLWell Identification57.4GROUNDWATER ELEVATION CONTOUR(DASHED WHERE INFERRED) (ft)GROUNDWATER FLOW DIRECTIONMW-457.32MONITORING WELLWell IdentificationRelative Groundwater Elevation (ft)NMNM57.3257.41NM57.32NMFORMERDISPENSERISLAND10SCALE: 1" = 30'02030NFigure:Drawing File:
Project Number:
Ckd. By:
Drn. By:
App'd By:
Ckd. Date:Scale:Date:H:\2023\1 OTHER OFFICES\NORTH CAROLINA\NCDEQ-STATE LEAD\AUDDIE'S 3\STL2392601-POT.DWG, FIG4
GROUNDWATER ELEVATION CONTOUR MAP08/04/2023SEE LOWER LEFTAUDDIES #3
6071 OLD NORTH CAROLINA HIGHWAY 49
ASHEBORO, NORTH CAROLINA
NCDEQ INCIDENT #23926
STL2392601AS SHOWNDH
BB4NOTES:
1.Features shown are not an authoritative location, nor are they presented
to a stated accuracy.
2.Groundwater measured July 7, 2023.
3.NM = not measured
COORDINATE SYSTEM:
NAD 1983 NORTH CAROLINA STATE PLANE FIPS 3200, US SURVEY FEET
OLD
NOR
TH
CARO
L
INA
H
IGHWAY

49DUNBAR BRIDGE ROADMW-3WR-2MW-1AWR-1MW-2MW-5MW-4WSW-1TANK 5TANK 4TANK 3TANK 2TANK 1FORMERDISPENSERISLANDFORMERDIESEL/KEROSENEDISPENSERSTANK 7TANK 6SITELEGEND:SITE PROPERTY LINENOTE: ALL LOCATIONS ARE APPROXIMATEPARCEL LINEWSW-1WATER SUPPLY WELLWell Identification100BENZENE ISOCONCENTRATION CONTOUR(DASHED WHERE INFERRED) (µg/L)MW-4921MONITORING WELLWell IdentificationBenzene Concentration (µg/L)NSNS92120,600NS12,100NS10,0001,000100101
10SCALE: 1" = 30'02030NFigure:Drawing File:
Project Number:
Ckd. By:
Drn. By:
App'd By:
Ckd. Date:Scale:Date:H:\2023\1 OTHER OFFICES\NORTH CAROLINA\NCDEQ-STATE LEAD\AUDDIE'S 3\STL2392601-BENZ.DWG, FIG5
DISSOLVED BENZENE ISOCONCENTRATION MAP08/04/2023SEE LOWER LEFTAUDDIES #3
6071 OLD NORTH CAROLINA HIGHWAY 49
ASHEBORO, NORTH CAROLINA
NCDEQ INCIDENT #23926
STL2392601AS SHOWNDH
BB5NOTES:
1.Features shown are not an authoritative location, nor are they presented
to a stated accuracy.
2.Groundwater sampled July 7, 2023.
3.NS = Not Sampled
4.µg/L = micrograms per liter
COORDINATE SYSTEM:
NAD 1983 NORTH CAROLINA STATE PLANE FIPS 3200, US SURVEY FEET
OLD NORTH CAROLINA HIGHWAY 49DUNBAR BRIDGE ROADMW-3WR-2MW-1AWR-1MW-2MW-5MW-4WSW-1TANK 5TANK 4TANK 3TANK 2TANK 1FORMERDISPENSERISLANDFORMERDIESEL/KEROSENEDISPENSERSTANK 7TANK 6SITELEGEND:SITE PROPERTY LINENOTE: ALL LOCATIONS ARE APPROXIMATEPARCEL LINEMW-1MONITORING WELLWell IdentificationWSW-1WATER SUPPLY WELLWell Identification10SCALE: 1" = 30'02030NNSNSNSNSFigure:Drawing File:
Project Number:
Ckd. By:
Drn. By:
App'd By:
Ckd. Date:Scale:Date:H:\2023\1 OTHER OFFICES\NORTH CAROLINA\NCDEQ-STATE LEAD\AUDDIE'S 3\STL2392601-GW.DWG, FIG6
ADDITIONAL CONTAMINANTS OF CONCERN
IN GROUNDWATER08/04/2023SEE LOWER LEFTAUDDIES #3
6071 OLD NORTH CAROLINA HIGHWAY 49
ASHEBORO, NORTH CAROLINA
NCDEQ INCIDENT #23926
STL2392601AS SHOWNDH
BB6NOTES:
1.Features shown are not an authoritative location, nor are they presented to a stated
accuracy.
2.NS = Not Sampled
3.Concentrations are reported in micrograms per liter (µg/L) = parts per billion (ppb)
4.J = Indicates constituent was detected above laboratory detection limit but below laboratory
reporting limit.
5.Concentrations in BOLD equal or exceed the corresponding NCDEQ Groundwater Quality
2L Standard (2L Standard).
6.Concentrations in ITALICS equal or exceed the corresponding GCL.
COORDINATE SYSTEM:
NAD 1983 NORTH CAROLINA STATE PLANE FIPS 3200, US SURVEY FEET
Auddies #3

ATC Project No. STL2392601 NCDEQ State Lead Program

APPENDIX A

FIELD NOTES

Auddies #3

ATC Project No. STL2392601 NCDEQ State Lead Program

APPENDIX B

MMPE REPORT AND WASTE DISPOSAL MANIFESTS

Auddies #3

ATC Project No. STL2392601 NCDEQ State Lead Program

APPENDIX C

LABORATORY ANALYTICAL RESULTS

ANALYTICAL REPORT
June 21, 2023
ATC Group Services LLC
Sample Delivery Group:L1625468
Samples Received:06/13/2023
Project Number:STL2392601
Description:Auddies #3
Report To:Brian Buchanan
2725 E. Millbrook Road, Ste 121
Raleigh, NC 27604
Entire Report Reviewed By:
June 21, 2023
[Preliminary Report]
Heather J Wagner
Project Manager
Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received.
Pace Analytical National
12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 www.pacenational.com
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
ATC Group Services LLC STL2392601 L1625468 06/21/23 14:26 1 of 12
June 21, 2023
Heather J Wagner
Project Manager
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
ATC Group Services LLC STL2392601 L1625468 06/21/23 15:26 1 of 12
TABLE OF CONTENTS
Cp: Cover Page 1
Tc: Table of Contents 2
Ss: Sample Summary 3
Cn: Case Narrative 4
Sr: Sample Results 5
MW-2 L1625468-01 5
MW-4 L1625468-02 6
MW-5 L1625468-03 7
Qc: Quality Control Summary 8
Volatile Organic Compounds (GC/MS) by Method 602MS 8
Gl: Glossary of Terms 10
Al: Accreditations & Locations 11
Sc: Sample Chain of Custody 12
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
ATC Group Services LLC STL2392601 L1625468 06/21/23 14:26 2 of 12
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
ATC Group Services LLC STL2392601 L1625468 06/21/23 15:26 2 of 12
SAMPLE SUMMARY
Collected by Collected date/time Received date/time
MW-2 L1625468-01 GW Justin Jones 06/07/23 11:00 06/13/23 09:15
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Volatile Organic Compounds (GC/MS) by Method 602MS WG2079421 50 06/17/23 03:46 06/17/23 03:46 DYW Mt. Juliet, TN
Collected by Collected date/time Received date/time
MW-4 L1625468-02 GW Justin Jones 06/07/23 11:05 06/13/23 09:15
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Volatile Organic Compounds (GC/MS) by Method 602MS WG2081339 100 06/21/23 01:50 06/21/23 01:50 BAM Mt. Juliet, TN
Collected by Collected date/time Received date/time
MW-5 L1625468-03 GW Justin Jones 06/07/23 11:10 06/13/23 09:15
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Volatile Organic Compounds (GC/MS) by Method 602MS WG2081339 100 06/21/23 02:10 06/21/23 02:10 BAM Mt. Juliet, TN
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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CASE NARRATIVE
All sample aliquots were received at the correct temperature, in the proper containers, with the
appropriate preservatives, and within method specified holding times, unless qualified or notated within
the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples
have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control
are within established criteria except where addressed in this case narrative, a non-conformance form
or properly qualified within the sample results. By my digital signature below, I affirm to the best of my
knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the
quality of the data have been identified by the laboratory, and no information or data have been
knowingly withheld that would affect the quality of the data.
[Preliminary Report]
Heather J Wagner
Project Manager
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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Heather J Wagner
Project Manager
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SAMPLE RESULTS - 01
L1625468
MW-2
Collected date/time: 06/07/23 11:00
Volatile Organic Compounds (GC/MS) by Method 602MS
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Benzene 4430 4.71 50.0 50 06/17/2023 03:46 WG2079421
Toluene 841 13.9 50.0 50 06/17/2023 03:46 WG2079421
Ethylbenzene 866 6.85 50.0 50 06/17/2023 03:46 WG2079421
Total Xylenes 3030 8.70 150 50 06/17/2023 03:46 WG2079421
Methyl tert-butyl ether 1520 5.05 50.0 50 06/17/2023 03:46 WG2079421
Di-isopropyl ether 199 5.25 50.0 50 06/17/2023 03:46 WG2079421
(S) Toluene-d8 98.8 80.0-120 06/17/2023 03:46 WG2079421
(S) 4-Bromofluorobenzene 101 77.0-126 06/17/2023 03:46 WG2079421
(S) 1,2-Dichloroethane-d4 107 70.0-130 06/17/2023 03:46 WG2079421
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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SAMPLE RESULTS - 02
L1625468
MW-4
Collected date/time: 06/07/23 11:05
Volatile Organic Compounds (GC/MS) by Method 602MS
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Benzene 571 9.41 100 100 06/21/2023 01:50 WG2081339
Toluene 103 27.8 100 100 06/21/2023 01:50 WG2081339
Ethylbenzene U 13.7 100 100 06/21/2023 01:50 WG2081339
Total Xylenes 69.3 J 17.4 300 100 06/21/2023 01:50 WG2081339
Methyl tert-butyl ether 1410 10.1 100 100 06/21/2023 01:50 WG2081339
Di-isopropyl ether 274 10.5 100 100 06/21/2023 01:50 WG2081339
(S) Toluene-d8 116 80.0-120 06/21/2023 01:50 WG2081339
(S) 4-Bromofluorobenzene 88.4 77.0-126 06/21/2023 01:50 WG2081339
(S) 1,2-Dichloroethane-d4 126 70.0-130 06/21/2023 01:50 WG2081339
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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SAMPLE RESULTS - 03
L1625468
MW-5
Collected date/time: 06/07/23 11:10
Volatile Organic Compounds (GC/MS) by Method 602MS
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Benzene 5470 9.41 100 100 06/21/2023 02:10 WG2081339
Toluene 2390 27.8 100 100 06/21/2023 02:10 WG2081339
Ethylbenzene 290 13.7 100 100 06/21/2023 02:10 WG2081339
Total Xylenes 1730 17.4 300 100 06/21/2023 02:10 WG2081339
Methyl tert-butyl ether 4600 10.1 100 100 06/21/2023 02:10 WG2081339
Di-isopropyl ether 509 10.5 100 100 06/21/2023 02:10 WG2081339
(S) Toluene-d8 115 80.0-120 06/21/2023 02:10 WG2081339
(S) 4-Bromofluorobenzene 89.9 77.0-126 06/21/2023 02:10 WG2081339
(S) 1,2-Dichloroethane-d4 126 70.0-130 06/21/2023 02:10 WG2081339
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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QUALITY CONTROL SUMMARYWG2079421
Volatile Organic Compounds (GC/MS) by Method 602MS L1625468-01
Method Blank (MB)
(MB) R3939017-3 06/16/23 18:07
MB Result MB Qualifier MB MDL MB RDL
Analyte ug/l ug/l ug/l
Benzene U 0.0941 1.00
Toluene U 0.278 1.00
Ethylbenzene U 0.137 1.00
Total Xylenes U 0.174 3.00
Methyl tert-butyl ether U 0.101 1.00
Di-isopropyl ether U 0.105 1.00
(S) Toluene-d8 92.3 80.0-120
(S) 4-Bromofluorobenzene 98.6 77.0-126
(S) 1,2-Dichloroethane-d4 125 70.0-130
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R3939017-1 06/16/23 17:02 • (LCSD) R3939017-2 06/16/23 17:24
Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits
Analyte ug/l ug/l ug/l %%%%%
Benzene 5.00 5.12 5.17 102 103 70.0-123 0.972 20
Toluene 5.00 4.83 4.69 96.6 93.8 79.0-120 2.94 20
Ethylbenzene 5.00 5.08 4.93 102 98.6 79.0-123 3.00 20
Total Xylenes 15.0 15.1 14.6 101 97.3 79.0-123 3.37 20
Methyl tert-butyl ether 5.00 5.55 5.66 111 113 68.0-125 1.96 20
Di-isopropyl ether 5.00 5.09 5.24 102 105 58.0-138 2.90 20
(S) Toluene-d8 93.5 96.3 80.0-120
(S) 4-Bromofluorobenzene 102 101 77.0-126
(S) 1,2-Dichloroethane-d4 123 122 70.0-130
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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QUALITY CONTROL SUMMARYWG2081339
Volatile Organic Compounds (GC/MS) by Method 602MS L1625468-02,03
Method Blank (MB)
(MB) R3939418-3 06/20/23 19:39
MB Result MB Qualifier MB MDL MB RDL
Analyte ug/l ug/l ug/l
Benzene U 0.0941 1.00
Toluene U 0.278 1.00
Ethylbenzene U 0.137 1.00
Total Xylenes U 0.174 3.00
Methyl tert-butyl ether U 0.101 1.00
Di-isopropyl ether U 0.105 1.00
(S) Toluene-d8 120 80.0-120
(S) 4-Bromofluorobenzene 91.6 77.0-126
(S) 1,2-Dichloroethane-d4 124 70.0-130
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R3939418-1 06/20/23 17:56 • (LCSD) R3939418-2 06/20/23 19:19
Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits
Analyte ug/l ug/l ug/l %%%%%
Benzene 5.00 5.18 5.06 104 101 70.0-123 2.34 20
Toluene 5.00 5.32 5.19 106 104 79.0-120 2.47 20
Ethylbenzene 5.00 4.99 4.77 99.8 95.4 79.0-123 4.51 20
Total Xylenes 15.0 14.5 13.6 96.7 90.7 79.0-123 6.41 20
Methyl tert-butyl ether 5.00 5.53 4.97 111 99.4 68.0-125 10.7 20
Di-isopropyl ether 5.00 6.67 6.69 133 134 58.0-138 0.299 20
(S) Toluene-d8 117 114 80.0-120
(S) 4-Bromofluorobenzene 93.5 92.3 77.0-126
(S) 1,2-Dichloroethane-d4 125 123 70.0-130
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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GLOSSARY OF TERMS
Guide to Reading and Understanding Your Laboratory Report
The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not
intended as a comprehensive explanation, and if you have additional questions please contact your project representative.
Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name,
Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and
Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received.
Abbreviations and Definitions
MDL Method Detection Limit.
RDL Reported Detection Limit.
Rec.Recovery.
RPD Relative Percent Difference.
SDG Sample Delivery Group.
(S)
Surrogate (Surrogate Standard) - Analytes added to every blank, sample, Laboratory Control Sample/Duplicate and
Matrix Spike/Duplicate; used to evaluate analytical efficiency by measuring recovery. Surrogates are not expected to be
detected in all environmental media.
U Not detected at the Reporting Limit (or MDL where applicable).
Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes
reported.
Dilution
If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the
standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the
laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the
result reported has already been corrected for this factor.
Limits
These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal
for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or
duplicated within these ranges.
Qualifier
This column provides a letter and/or number designation that corresponds to additional information concerning the result
reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and
potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable.
Result
The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was
no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL”
(Below Detectable Levels). The information in the results column should always be accompanied by either an MDL
(Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect
or report for this analyte.
Uncertainty
(Radiochemistry)Confidence level of 2 sigma.
Case Narrative (Cn)
A brief discussion about the included sample results, including a discussion of any non-conformances to protocol
observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will
be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report.
Quality Control
Summary (Qc)
This section of the report includes the results of the laboratory quality control analyses required by procedure or
analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not
being performed on your samples typically, but on laboratory generated material.
Sample Chain of
Custody (Sc)
This is the document created in the field when your samples were initially collected. This is used to verify the time and
date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This
chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the
samples from the time of collection until delivery to the laboratory for analysis.
Sample Results (Sr)
This section of your report will provide the results of all testing performed on your samples. These results are provided
by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for
each sample will provide the name and method number for the analysis reported.
Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and
times of preparation and/or analysis.
Qualifier Description
J The identification of the analyte is acceptable; the reported value is an estimate.
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122
Alabama 40660 Nebraska NE-OS-15-05
Alaska 17-026 Nevada TN000032021-1
Arizona AZ0612 New Hampshire 2975
Arkansas 88-0469 New Jersey–NELAP TN002
California 2932 New Mexico ¹TN00003
Colorado TN00003 New York 11742
Connecticut PH-0197 North Carolina Env375
Florida E87487 North Carolina ¹DW21704
Georgia NELAP North Carolina ³41
Georgia ¹923 North Dakota R-140
Idaho TN00003 Ohio–VAP CL0069
Illinois 200008 Oklahoma 9915
Indiana C-TN-01 Oregon TN200002
Iowa 364 Pennsylvania 68-02979
Kansas E-10277 Rhode Island LAO00356
Kentucky ¹ ⁶KY90010 South Carolina 84004002
Kentucky ²16 South Dakota n/a
Louisiana AI30792 Tennessee ¹ ⁴2006
Louisiana LA018 Texas T104704245-20-18
Maine TN00003 Texas ⁵LAB0152
Maryland 324 Utah TN000032021-11
Massachusetts M-TN003 Vermont VT2006
Michigan 9958 Virginia 110033
Minnesota 047-999-395 Washington C847
Mississippi TN00003 West Virginia 233
Missouri 340 Wisconsin 998093910
Montana CERT0086 Wyoming A2LA
A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789
A2LA – ISO 17025 ⁵1461.02 DOD 1461.01
Canada 1461.01 USDA P330-15-00234
EPA–Crypto TN00003
ACCREDITATIONS & LOCATIONS

¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable
* Not all certifications held by the laboratory are applicable to the results reported in the attached report.
* Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical.
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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ANALYTICAL REPORT
July 19, 2023
ATC Group Services LLC
Sample Delivery Group:L1634590
Samples Received:07/12/2023
Project Number:STL2392601
Description:Auddies #3
Report To:Brian Buchanan
2725 E. Millbrook Road, Ste 121
Raleigh, NC 27604
Entire Report Reviewed By:
July 19, 2023
[Preliminary Report]
Heather J Wagner
Project Manager
Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received.
Pace Analytical National
12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 www.pacenational.com
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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July 19, 2023
Jason Romer
Project Manager
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TABLE OF CONTENTS
Cp: Cover Page 1
Tc: Table of Contents 2
Ss: Sample Summary 3
Cn: Case Narrative 4
Sr: Sample Results 5
MW-2 L1634590-01 5
MW-4 L1634590-02 7
MW-5 L1634590-03 9
FB-1 (FIELD BLANK) L1634590-04 11
Qc: Quality Control Summary 13
Volatile Organic Compounds (GC/MS) by Method 6200B-2011 13
Gl: Glossary of Terms 18
Al: Accreditations & Locations 19
Sc: Sample Chain of Custody 20
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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SAMPLE SUMMARY
Collected by Collected date/time Received date/time
MW-2 L1634590-01 GW Garrett Lewis 07/07/23 12:10 07/12/23 08:45
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG2094839 50 07/14/23 16:21 07/14/23 16:21 JHH Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG2096255 500 07/19/23 04:24 07/19/23 04:24 DYW Mt. Juliet, TN
Collected by Collected date/time Received date/time
MW-4 L1634590-02 GW Garrett Lewis 07/07/23 13:30 07/12/23 08:45
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG2094839 50 07/14/23 16:41 07/14/23 16:41 JHH Mt. Juliet, TN
Collected by Collected date/time Received date/time
MW-5 L1634590-03 GW Garrett Lewis 07/07/23 13:00 07/12/23 08:45
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG2094839 50 07/14/23 17:00 07/14/23 17:00 JHH Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG2096255 500 07/19/23 04:44 07/19/23 04:44 DYW Mt. Juliet, TN
Collected by Collected date/time Received date/time
FB-1 (FIELD BLANK) L1634590-04 GW Garrett Lewis 07/07/23 13:40 07/12/23 08:45
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG2094839 1 07/14/23 12:13 07/14/23 12:13 ACG Mt. Juliet, TN
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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CASE NARRATIVE
All sample aliquots were received at the correct temperature, in the proper containers, with the
appropriate preservatives, and within method specified holding times, unless qualified or notated within
the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples
have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control
are within established criteria except where addressed in this case narrative, a non-conformance form
or properly qualified within the sample results. By my digital signature below, I affirm to the best of my
knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the
quality of the data have been identified by the laboratory, and no information or data have been
knowingly withheld that would affect the quality of the data.
[Preliminary Report]
Heather J Wagner
Project Manager
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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Jason Romer
Project Manager
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SAMPLE RESULTS - 01
L1634590
MW-2
Collected date/time: 07/07/23 12:10
Volatile Organic Compounds (GC/MS) by Method 6200B-2011
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Acetone U 565 2500 50 07/14/2023 16:21 WG2094839
Acrolein U 127 2500 50 07/14/2023 16:21 WG2094839
Acrylonitrile U 33.6 500 50 07/14/2023 16:21 WG2094839
Benzene 12100 47.1 500 500 07/19/2023 04:24 WG2096255
Bromobenzene U 5.90 50.0 50 07/14/2023 16:21 WG2094839
Bromodichloromethane U 6.80 50.0 50 07/14/2023 16:21 WG2094839
Bromoform U 6.45 50.0 50 07/14/2023 16:21 WG2094839
Bromomethane U 30.3 250 50 07/14/2023 16:21 WG2094839
n-Butylbenzene 24.0 J 7.85 50.0 50 07/14/2023 16:21 WG2094839
sec-Butylbenzene 10.1 J 6.25 50.0 50 07/14/2023 16:21 WG2094839
tert-Butylbenzene U 6.35 50.0 50 07/14/2023 16:21 WG2094839
Carbon tetrachloride U 6.40 50.0 50 07/14/2023 16:21 WG2094839
Chlorobenzene U 5.80 50.0 50 07/14/2023 16:21 WG2094839
Chlorodibromomethane U 7.00 50.0 50 07/14/2023 16:21 WG2094839
Chloroethane U 9.60 250 50 07/14/2023 16:21 WG2094839
Chloroform U 5.55 250 50 07/14/2023 16:21 WG2094839
Chloromethane U 48.0 125 50 07/14/2023 16:21 WG2094839
2-Chlorotoluene U 5.30 50.0 50 07/14/2023 16:21 WG2094839
4-Chlorotoluene U 5.70 50.0 50 07/14/2023 16:21 WG2094839
1,2-Dibromo-3-Chloropropane U 13.8 250 50 07/14/2023 16:21 WG2094839
1,2-Dibromoethane U 6.30 50.0 50 07/14/2023 16:21 WG2094839
Dibromomethane U 6.10 50.0 50 07/14/2023 16:21 WG2094839
1,2-Dichlorobenzene U 5.35 50.0 50 07/14/2023 16:21 WG2094839
1,3-Dichlorobenzene U 5.50 50.0 50 07/14/2023 16:21 WG2094839
1,4-Dichlorobenzene U 6.00 50.0 50 07/14/2023 16:21 WG2094839
Dichlorodifluoromethane U 18.7 250 50 07/14/2023 16:21 WG2094839
1,1-Dichloroethane U 5.00 50.0 50 07/14/2023 16:21 WG2094839
1,2-Dichloroethane 439 4.09 50.0 50 07/14/2023 16:21 WG2094839
1,1-Dichloroethene U 9.40 50.0 50 07/14/2023 16:21 WG2094839
cis-1,2-Dichloroethene U 6.30 50.0 50 07/14/2023 16:21 WG2094839
trans-1,2-Dichloroethene U 7.45 50.0 50 07/14/2023 16:21 WG2094839
1,2-Dichloropropane U 7.45 50.0 50 07/14/2023 16:21 WG2094839
1,1-Dichloropropene U 7.10 50.0 50 07/14/2023 16:21 WG2094839
1,3-Dichloropropane U 5.50 50.0 50 07/14/2023 16:21 WG2094839
2,2-Dichloropropane U 8.05 50.0 50 07/14/2023 16:21 WG2094839
Di-isopropyl ether 262 5.25 50.0 50 07/14/2023 16:21 WG2094839
Ethylbenzene 1320 6.85 50.0 50 07/14/2023 16:21 WG2094839
Hexachloro-1,3-butadiene U 16.9 50.0 50 07/14/2023 16:21 WG2094839
Isopropylbenzene 74.2 5.25 50.0 50 07/14/2023 16:21 WG2094839
p-Isopropyltoluene 9.93 J 6.00 50.0 50 07/14/2023 16:21 WG2094839
2-Butanone (MEK)U 59.5 500 50 07/14/2023 16:21 WG2094839
Methylene Chloride U 21.5 250 50 07/14/2023 16:21 WG2094839
4-Methyl-2-pentanone (MIBK)U 23.9 500 50 07/14/2023 16:21 WG2094839
Methyl tert-butyl ether 3230 5.05 50.0 50 07/14/2023 16:21 WG2094839
Naphthalene 425 50.0 250 50 07/14/2023 16:21 WG2094839
n-Propylbenzene 162 4.97 50.0 50 07/14/2023 16:21 WG2094839
Styrene 21.5 J 5.90 50.0 50 07/14/2023 16:21 WG2094839
1,1,1,2-Tetrachloroethane U 7.35 50.0 50 07/14/2023 16:21 WG2094839
1,1,2,2-Tetrachloroethane U 6.65 50.0 50 07/14/2023 16:21 WG2094839
Tetrachloroethene U 15.0 50.0 50 07/14/2023 16:21 WG2094839
Toluene 1800 13.9 50.0 50 07/14/2023 16:21 WG2094839
1,2,3-Trichlorobenzene U 11.5 50.0 50 07/14/2023 16:21 WG2094839
1,2,4-Trichlorobenzene U 24.1 50.0 50 07/14/2023 16:21 WG2094839
1,1,1-Trichloroethane U 7.45 50.0 50 07/14/2023 16:21 WG2094839
1,1,2-Trichloroethane U 7.90 50.0 50 07/14/2023 16:21 WG2094839
Trichloroethene U 9.50 50.0 50 07/14/2023 16:21 WG2094839
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
ATC Group Services LLC STL2392601 L1634590 07/19/23 17:23 5 of 20
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ATC Group Services LLC STL2392601 L1634590 07/19/23 18:26 5 of 20
SAMPLE RESULTS - 01
L1634590
MW-2
Collected date/time: 07/07/23 12:10
Volatile Organic Compounds (GC/MS) by Method 6200B-2011
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Trichlorofluoromethane U 8.00 250 50 07/14/2023 16:21 WG2094839
1,2,3-Trichloropropane U 11.9 125 50 07/14/2023 16:21 WG2094839
1,2,4-Trimethylbenzene 1120 16.1 50.0 50 07/14/2023 16:21 WG2094839
1,3,5-Trimethylbenzene 357 5.20 50.0 50 07/14/2023 16:21 WG2094839
Vinyl chloride U 11.7 50.0 50 07/14/2023 16:21 WG2094839
o-Xylene 1160 8.70 50.0 50 07/14/2023 16:21 WG2094839
m&p-Xylenes 3380 21.5 100 50 07/14/2023 16:21 WG2094839
(S) Toluene-d8 106 80.0-120 07/14/2023 16:21 WG2094839
(S) Toluene-d8 102 80.0-120 07/19/2023 04:24 WG2096255
(S) 4-Bromofluorobenzene 96.3 77.0-126 07/14/2023 16:21 WG2094839
(S) 4-Bromofluorobenzene 103 77.0-126 07/19/2023 04:24 WG2096255
(S) 1,2-Dichloroethane-d4 109 70.0-130 07/14/2023 16:21 WG2094839
(S) 1,2-Dichloroethane-d4 111 70.0-130 07/19/2023 04:24 WG2096255
Sample Narrative:
L1634590-01 WG2094839: Target compounds too high to run at a lower dilution.
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
ATC Group Services LLC STL2392601 L1634590 07/19/23 17:23 6 of 20
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ATC Group Services LLC STL2392601 L1634590 07/19/23 18:26 6 of 20
SAMPLE RESULTS - 02
L1634590
MW-4
Collected date/time: 07/07/23 13:30
Volatile Organic Compounds (GC/MS) by Method 6200B-2011
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Acetone U 565 2500 50 07/14/2023 16:41 WG2094839
Acrolein U 127 2500 50 07/14/2023 16:41 WG2094839
Acrylonitrile U 33.6 500 50 07/14/2023 16:41 WG2094839
Benzene 921 4.71 50.0 50 07/14/2023 16:41 WG2094839
Bromobenzene U 5.90 50.0 50 07/14/2023 16:41 WG2094839
Bromodichloromethane U 6.80 50.0 50 07/14/2023 16:41 WG2094839
Bromoform U 6.45 50.0 50 07/14/2023 16:41 WG2094839
Bromomethane U 30.3 250 50 07/14/2023 16:41 WG2094839
n-Butylbenzene U 7.85 50.0 50 07/14/2023 16:41 WG2094839
sec-Butylbenzene U 6.25 50.0 50 07/14/2023 16:41 WG2094839
tert-Butylbenzene U 6.35 50.0 50 07/14/2023 16:41 WG2094839
Carbon tetrachloride U 6.40 50.0 50 07/14/2023 16:41 WG2094839
Chlorobenzene U 5.80 50.0 50 07/14/2023 16:41 WG2094839
Chlorodibromomethane U 7.00 50.0 50 07/14/2023 16:41 WG2094839
Chloroethane U 9.60 250 50 07/14/2023 16:41 WG2094839
Chloroform U 5.55 250 50 07/14/2023 16:41 WG2094839
Chloromethane U 48.0 125 50 07/14/2023 16:41 WG2094839
2-Chlorotoluene U 5.30 50.0 50 07/14/2023 16:41 WG2094839
4-Chlorotoluene U 5.70 50.0 50 07/14/2023 16:41 WG2094839
1,2-Dibromo-3-Chloropropane U 13.8 250 50 07/14/2023 16:41 WG2094839
1,2-Dibromoethane U 6.30 50.0 50 07/14/2023 16:41 WG2094839
Dibromomethane U 6.10 50.0 50 07/14/2023 16:41 WG2094839
1,2-Dichlorobenzene U 5.35 50.0 50 07/14/2023 16:41 WG2094839
1,3-Dichlorobenzene U 5.50 50.0 50 07/14/2023 16:41 WG2094839
1,4-Dichlorobenzene U 6.00 50.0 50 07/14/2023 16:41 WG2094839
Dichlorodifluoromethane U 18.7 250 50 07/14/2023 16:41 WG2094839
1,1-Dichloroethane U 5.00 50.0 50 07/14/2023 16:41 WG2094839
1,2-Dichloroethane 187 4.09 50.0 50 07/14/2023 16:41 WG2094839
1,1-Dichloroethene U 9.40 50.0 50 07/14/2023 16:41 WG2094839
cis-1,2-Dichloroethene U 6.30 50.0 50 07/14/2023 16:41 WG2094839
trans-1,2-Dichloroethene U 7.45 50.0 50 07/14/2023 16:41 WG2094839
1,2-Dichloropropane U 7.45 50.0 50 07/14/2023 16:41 WG2094839
1,1-Dichloropropene U 7.10 50.0 50 07/14/2023 16:41 WG2094839
1,3-Dichloropropane U 5.50 50.0 50 07/14/2023 16:41 WG2094839
2,2-Dichloropropane U 8.05 50.0 50 07/14/2023 16:41 WG2094839
Di-isopropyl ether 730 5.25 50.0 50 07/14/2023 16:41 WG2094839
Ethylbenzene 92.5 6.85 50.0 50 07/14/2023 16:41 WG2094839
Hexachloro-1,3-butadiene U 16.9 50.0 50 07/14/2023 16:41 WG2094839
Isopropylbenzene 54.8 5.25 50.0 50 07/14/2023 16:41 WG2094839
p-Isopropyltoluene 17.9 J 6.00 50.0 50 07/14/2023 16:41 WG2094839
2-Butanone (MEK)U 59.5 500 50 07/14/2023 16:41 WG2094839
Methylene Chloride U 21.5 250 50 07/14/2023 16:41 WG2094839
4-Methyl-2-pentanone (MIBK)69.6 J 23.9 500 50 07/14/2023 16:41 WG2094839
Methyl tert-butyl ether 4280 5.05 50.0 50 07/14/2023 16:41 WG2094839
Naphthalene 50.5 J 50.0 250 50 07/14/2023 16:41 WG2094839
n-Propylbenzene 9.24 J 4.97 50.0 50 07/14/2023 16:41 WG2094839
Styrene U 5.90 50.0 50 07/14/2023 16:41 WG2094839
1,1,1,2-Tetrachloroethane U 7.35 50.0 50 07/14/2023 16:41 WG2094839
1,1,2,2-Tetrachloroethane U 6.65 50.0 50 07/14/2023 16:41 WG2094839
Tetrachloroethene U 15.0 50.0 50 07/14/2023 16:41 WG2094839
Toluene 176 13.9 50.0 50 07/14/2023 16:41 WG2094839
1,2,3-Trichlorobenzene U 11.5 50.0 50 07/14/2023 16:41 WG2094839
1,2,4-Trichlorobenzene U 24.1 50.0 50 07/14/2023 16:41 WG2094839
1,1,1-Trichloroethane U 7.45 50.0 50 07/14/2023 16:41 WG2094839
1,1,2-Trichloroethane U 7.90 50.0 50 07/14/2023 16:41 WG2094839
Trichloroethene U 9.50 50.0 50 07/14/2023 16:41 WG2094839
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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ATC Group Services LLC STL2392601 L1634590 07/19/23 17:23 7 of 20
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ATC Group Services LLC STL2392601 L1634590 07/19/23 18:26 7 of 20
SAMPLE RESULTS - 02
L1634590
MW-4
Collected date/time: 07/07/23 13:30
Volatile Organic Compounds (GC/MS) by Method 6200B-2011
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Trichlorofluoromethane U 8.00 250 50 07/14/2023 16:41 WG2094839
1,2,3-Trichloropropane U 11.9 125 50 07/14/2023 16:41 WG2094839
1,2,4-Trimethylbenzene 36.7 J 16.1 50.0 50 07/14/2023 16:41 WG2094839
1,3,5-Trimethylbenzene 24.7 J 5.20 50.0 50 07/14/2023 16:41 WG2094839
Vinyl chloride U 11.7 50.0 50 07/14/2023 16:41 WG2094839
o-Xylene 36.0 J 8.70 50.0 50 07/14/2023 16:41 WG2094839
m&p-Xylenes 93.7 J 21.5 100 50 07/14/2023 16:41 WG2094839
(S) Toluene-d8 105 80.0-120 07/14/2023 16:41 WG2094839
(S) 4-Bromofluorobenzene 101 77.0-126 07/14/2023 16:41 WG2094839
(S) 1,2-Dichloroethane-d4 110 70.0-130 07/14/2023 16:41 WG2094839
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
ATC Group Services LLC STL2392601 L1634590 07/19/23 17:23 8 of 20
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ATC Group Services LLC STL2392601 L1634590 07/19/23 18:26 8 of 20
SAMPLE RESULTS - 03
L1634590
MW-5
Collected date/time: 07/07/23 13:00
Volatile Organic Compounds (GC/MS) by Method 6200B-2011
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Acetone U 565 2500 50 07/14/2023 17:00 WG2094839
Acrolein U 127 2500 50 07/14/2023 17:00 WG2094839
Acrylonitrile U 33.6 500 50 07/14/2023 17:00 WG2094839
Benzene 20600 47.1 500 500 07/19/2023 04:44 WG2096255
Bromobenzene U 5.90 50.0 50 07/14/2023 17:00 WG2094839
Bromodichloromethane U 6.80 50.0 50 07/14/2023 17:00 WG2094839
Bromoform U 6.45 50.0 50 07/14/2023 17:00 WG2094839
Bromomethane U 30.3 250 50 07/14/2023 17:00 WG2094839
n-Butylbenzene 21.4 J 7.85 50.0 50 07/14/2023 17:00 WG2094839
sec-Butylbenzene 9.44 J 6.25 50.0 50 07/14/2023 17:00 WG2094839
tert-Butylbenzene U 6.35 50.0 50 07/14/2023 17:00 WG2094839
Carbon tetrachloride U 6.40 50.0 50 07/14/2023 17:00 WG2094839
Chlorobenzene U 5.80 50.0 50 07/14/2023 17:00 WG2094839
Chlorodibromomethane U 7.00 50.0 50 07/14/2023 17:00 WG2094839
Chloroethane U 9.60 250 50 07/14/2023 17:00 WG2094839
Chloroform U 5.55 250 50 07/14/2023 17:00 WG2094839
Chloromethane U 48.0 125 50 07/14/2023 17:00 WG2094839
2-Chlorotoluene U 5.30 50.0 50 07/14/2023 17:00 WG2094839
4-Chlorotoluene U 5.70 50.0 50 07/14/2023 17:00 WG2094839
1,2-Dibromo-3-Chloropropane U 13.8 250 50 07/14/2023 17:00 WG2094839
1,2-Dibromoethane U 6.30 50.0 50 07/14/2023 17:00 WG2094839
Dibromomethane U 6.10 50.0 50 07/14/2023 17:00 WG2094839
1,2-Dichlorobenzene U 5.35 50.0 50 07/14/2023 17:00 WG2094839
1,3-Dichlorobenzene U 5.50 50.0 50 07/14/2023 17:00 WG2094839
1,4-Dichlorobenzene U 6.00 50.0 50 07/14/2023 17:00 WG2094839
Dichlorodifluoromethane U 18.7 250 50 07/14/2023 17:00 WG2094839
1,1-Dichloroethane U 5.00 50.0 50 07/14/2023 17:00 WG2094839
1,2-Dichloroethane 667 4.09 50.0 50 07/14/2023 17:00 WG2094839
1,1-Dichloroethene U 9.40 50.0 50 07/14/2023 17:00 WG2094839
cis-1,2-Dichloroethene U 6.30 50.0 50 07/14/2023 17:00 WG2094839
trans-1,2-Dichloroethene U 7.45 50.0 50 07/14/2023 17:00 WG2094839
1,2-Dichloropropane U 7.45 50.0 50 07/14/2023 17:00 WG2094839
1,1-Dichloropropene U 7.10 50.0 50 07/14/2023 17:00 WG2094839
1,3-Dichloropropane U 5.50 50.0 50 07/14/2023 17:00 WG2094839
2,2-Dichloropropane U 8.05 50.0 50 07/14/2023 17:00 WG2094839
Di-isopropyl ether 991 5.25 50.0 50 07/14/2023 17:00 WG2094839
Ethylbenzene 1300 6.85 50.0 50 07/14/2023 17:00 WG2094839
Hexachloro-1,3-butadiene U 16.9 50.0 50 07/14/2023 17:00 WG2094839
Isopropylbenzene 62.1 5.25 50.0 50 07/14/2023 17:00 WG2094839
p-Isopropyltoluene 37.6 J 6.00 50.0 50 07/14/2023 17:00 WG2094839
2-Butanone (MEK)760 59.5 500 50 07/14/2023 17:00 WG2094839
Methylene Chloride U 21.5 250 50 07/14/2023 17:00 WG2094839
4-Methyl-2-pentanone (MIBK)233 J 23.9 500 50 07/14/2023 17:00 WG2094839
Methyl tert-butyl ether 15000 50.5 500 500 07/19/2023 04:44 WG2096255
Naphthalene 405 50.0 250 50 07/14/2023 17:00 WG2094839
n-Propylbenzene 133 4.97 50.0 50 07/14/2023 17:00 WG2094839
Styrene U 5.90 50.0 50 07/14/2023 17:00 WG2094839
1,1,1,2-Tetrachloroethane U 7.35 50.0 50 07/14/2023 17:00 WG2094839
1,1,2,2-Tetrachloroethane U 6.65 50.0 50 07/14/2023 17:00 WG2094839
Tetrachloroethene U 15.0 50.0 50 07/14/2023 17:00 WG2094839
Toluene 1850 13.9 50.0 50 07/14/2023 17:00 WG2094839
1,2,3-Trichlorobenzene U 11.5 50.0 50 07/14/2023 17:00 WG2094839
1,2,4-Trichlorobenzene U 24.1 50.0 50 07/14/2023 17:00 WG2094839
1,1,1-Trichloroethane U 7.45 50.0 50 07/14/2023 17:00 WG2094839
1,1,2-Trichloroethane U 7.90 50.0 50 07/14/2023 17:00 WG2094839
Trichloroethene U 9.50 50.0 50 07/14/2023 17:00 WG2094839
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
ATC Group Services LLC STL2392601 L1634590 07/19/23 17:23 9 of 20
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ATC Group Services LLC STL2392601 L1634590 07/19/23 18:26 9 of 20
SAMPLE RESULTS - 03
L1634590
MW-5
Collected date/time: 07/07/23 13:00
Volatile Organic Compounds (GC/MS) by Method 6200B-2011
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Trichlorofluoromethane U 8.00 250 50 07/14/2023 17:00 WG2094839
1,2,3-Trichloropropane U 11.9 125 50 07/14/2023 17:00 WG2094839
1,2,4-Trimethylbenzene 841 16.1 50.0 50 07/14/2023 17:00 WG2094839
1,3,5-Trimethylbenzene 302 5.20 50.0 50 07/14/2023 17:00 WG2094839
Vinyl chloride U 11.7 50.0 50 07/14/2023 17:00 WG2094839
o-Xylene 1060 8.70 50.0 50 07/14/2023 17:00 WG2094839
m&p-Xylenes 2620 21.5 100 50 07/14/2023 17:00 WG2094839
(S) Toluene-d8 103 80.0-120 07/14/2023 17:00 WG2094839
(S) Toluene-d8 99.9 80.0-120 07/19/2023 04:44 WG2096255
(S) 4-Bromofluorobenzene 96.6 77.0-126 07/14/2023 17:00 WG2094839
(S) 4-Bromofluorobenzene 101 77.0-126 07/19/2023 04:44 WG2096255
(S) 1,2-Dichloroethane-d4 109 70.0-130 07/14/2023 17:00 WG2094839
(S) 1,2-Dichloroethane-d4 114 70.0-130 07/19/2023 04:44 WG2096255
Sample Narrative:
L1634590-03 WG2094839: Target compounds too high to run at a lower dilution.
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
ATC Group Services LLC STL2392601 L1634590 07/19/23 17:23 10 of 20
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ATC Group Services LLC STL2392601 L1634590 07/19/23 18:26 10 of 20
SAMPLE RESULTS - 04
L1634590
FB-1 (FIELD BLANK)
Collected date/time: 07/07/23 13:40
Volatile Organic Compounds (GC/MS) by Method 6200B-2011
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Acetone 12.3 J 11.3 50.0 1 07/14/2023 12:13 WG2094839
Acrolein U 2.54 50.0 1 07/14/2023 12:13 WG2094839
Acrylonitrile U 0.671 10.0 1 07/14/2023 12:13 WG2094839
Benzene U 0.0941 1.00 1 07/14/2023 12:13 WG2094839
Bromobenzene U 0.118 1.00 1 07/14/2023 12:13 WG2094839
Bromodichloromethane U 0.136 1.00 1 07/14/2023 12:13 WG2094839
Bromoform U 0.129 1.00 1 07/14/2023 12:13 WG2094839
Bromomethane U 0.605 5.00 1 07/14/2023 12:13 WG2094839
n-Butylbenzene U 0.157 1.00 1 07/14/2023 12:13 WG2094839
sec-Butylbenzene U 0.125 1.00 1 07/14/2023 12:13 WG2094839
tert-Butylbenzene U 0.127 1.00 1 07/14/2023 12:13 WG2094839
Carbon tetrachloride U 0.128 1.00 1 07/14/2023 12:13 WG2094839
Chlorobenzene U 0.116 1.00 1 07/14/2023 12:13 WG2094839
Chlorodibromomethane U 0.140 1.00 1 07/14/2023 12:13 WG2094839
Chloroethane U 0.192 5.00 1 07/14/2023 12:13 WG2094839
Chloroform U 0.111 5.00 1 07/14/2023 12:13 WG2094839
Chloromethane U 0.960 2.50 1 07/14/2023 12:13 WG2094839
2-Chlorotoluene U 0.106 1.00 1 07/14/2023 12:13 WG2094839
4-Chlorotoluene U 0.114 1.00 1 07/14/2023 12:13 WG2094839
1,2-Dibromo-3-Chloropropane U 0.276 5.00 1 07/14/2023 12:13 WG2094839
1,2-Dibromoethane U 0.126 1.00 1 07/14/2023 12:13 WG2094839
Dibromomethane U 0.122 1.00 1 07/14/2023 12:13 WG2094839
1,2-Dichlorobenzene U 0.107 1.00 1 07/14/2023 12:13 WG2094839
1,3-Dichlorobenzene U 0.110 1.00 1 07/14/2023 12:13 WG2094839
1,4-Dichlorobenzene U 0.120 1.00 1 07/14/2023 12:13 WG2094839
Dichlorodifluoromethane U 0.374 5.00 1 07/14/2023 12:13 WG2094839
1,1-Dichloroethane U 0.100 1.00 1 07/14/2023 12:13 WG2094839
1,2-Dichloroethane U 0.0819 1.00 1 07/14/2023 12:13 WG2094839
1,1-Dichloroethene U 0.188 1.00 1 07/14/2023 12:13 WG2094839
cis-1,2-Dichloroethene U 0.126 1.00 1 07/14/2023 12:13 WG2094839
trans-1,2-Dichloroethene U 0.149 1.00 1 07/14/2023 12:13 WG2094839
1,2-Dichloropropane U 0.149 1.00 1 07/14/2023 12:13 WG2094839
1,1-Dichloropropene U 0.142 1.00 1 07/14/2023 12:13 WG2094839
1,3-Dichloropropane U 0.110 1.00 1 07/14/2023 12:13 WG2094839
2,2-Dichloropropane U 0.161 1.00 1 07/14/2023 12:13 WG2094839
Di-isopropyl ether U 0.105 1.00 1 07/14/2023 12:13 WG2094839
Ethylbenzene U 0.137 1.00 1 07/14/2023 12:13 WG2094839
Hexachloro-1,3-butadiene U 0.337 1.00 1 07/14/2023 12:13 WG2094839
Isopropylbenzene U 0.105 1.00 1 07/14/2023 12:13 WG2094839
p-Isopropyltoluene U 0.120 1.00 1 07/14/2023 12:13 WG2094839
2-Butanone (MEK)2.91 J 1.19 10.0 1 07/14/2023 12:13 WG2094839
Methylene Chloride U 0.430 5.00 1 07/14/2023 12:13 WG2094839
4-Methyl-2-pentanone (MIBK)U 0.478 10.0 1 07/14/2023 12:13 WG2094839
Methyl tert-butyl ether U 0.101 1.00 1 07/14/2023 12:13 WG2094839
Naphthalene U 1.00 5.00 1 07/14/2023 12:13 WG2094839
n-Propylbenzene U 0.0993 1.00 1 07/14/2023 12:13 WG2094839
Styrene U 0.118 1.00 1 07/14/2023 12:13 WG2094839
1,1,1,2-Tetrachloroethane U 0.147 1.00 1 07/14/2023 12:13 WG2094839
1,1,2,2-Tetrachloroethane U 0.133 1.00 1 07/14/2023 12:13 WG2094839
Tetrachloroethene U 0.300 1.00 1 07/14/2023 12:13 WG2094839
Toluene U 0.278 1.00 1 07/14/2023 12:13 WG2094839
1,2,3-Trichlorobenzene U 0.230 1.00 1 07/14/2023 12:13 WG2094839
1,2,4-Trichlorobenzene U 0.481 1.00 1 07/14/2023 12:13 WG2094839
1,1,1-Trichloroethane U 0.149 1.00 1 07/14/2023 12:13 WG2094839
1,1,2-Trichloroethane U 0.158 1.00 1 07/14/2023 12:13 WG2094839
Trichloroethene U 0.190 1.00 1 07/14/2023 12:13 WG2094839
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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SAMPLE RESULTS - 04
L1634590
FB-1 (FIELD BLANK)
Collected date/time: 07/07/23 13:40
Volatile Organic Compounds (GC/MS) by Method 6200B-2011
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Trichlorofluoromethane U 0.160 5.00 1 07/14/2023 12:13 WG2094839
1,2,3-Trichloropropane U 0.237 2.50 1 07/14/2023 12:13 WG2094839
1,2,4-Trimethylbenzene U 0.322 1.00 1 07/14/2023 12:13 WG2094839
1,3,5-Trimethylbenzene U 0.104 1.00 1 07/14/2023 12:13 WG2094839
Vinyl chloride U 0.234 1.00 1 07/14/2023 12:13 WG2094839
o-Xylene U 0.174 1.00 1 07/14/2023 12:13 WG2094839
m&p-Xylenes U 0.430 2.00 1 07/14/2023 12:13 WG2094839
(S) Toluene-d8 104 80.0-120 07/14/2023 12:13 WG2094839
(S) 4-Bromofluorobenzene 95.7 77.0-126 07/14/2023 12:13 WG2094839
(S) 1,2-Dichloroethane-d4 109 70.0-130 07/14/2023 12:13 WG2094839
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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QUALITY CONTROL SUMMARYWG2094839
Volatile Organic Compounds (GC/MS) by Method 6200B-2011 L1634590-01,02,03,04
Method Blank (MB)
(MB) R3948701-3 07/14/23 10:25
MB Result MB Qualifier MB MDL MB RDL
Analyte ug/l ug/l ug/l
Acetone U 11.3 50.0
Acrolein U 2.54 50.0
Acrylonitrile U 0.671 10.0
Benzene U 0.0941 1.00
Bromobenzene U 0.118 1.00
Bromodichloromethane U 0.136 1.00
Bromoform U 0.129 1.00
Bromomethane U 0.605 5.00
n-Butylbenzene U 0.157 1.00
sec-Butylbenzene U 0.125 1.00
tert-Butylbenzene U 0.127 1.00
Carbon tetrachloride U 0.128 1.00
Chlorobenzene U 0.116 1.00
Chlorodibromomethane U 0.140 1.00
Chloroethane U 0.192 5.00
Chloroform U 0.111 5.00
Chloromethane U 0.960 2.50
2-Chlorotoluene U 0.106 1.00
4-Chlorotoluene U 0.114 1.00
1,2-Dibromo-3-Chloropropane U 0.276 5.00
1,2-Dibromoethane U 0.126 1.00
Dibromomethane U 0.122 1.00
1,2-Dichlorobenzene U 0.107 1.00
1,3-Dichlorobenzene U 0.110 1.00
1,4-Dichlorobenzene U 0.120 1.00
Dichlorodifluoromethane U 0.374 5.00
1,1-Dichloroethane U 0.100 1.00
1,2-Dichloroethane U 0.0819 1.00
1,1-Dichloroethene U 0.188 1.00
cis-1,2-Dichloroethene U 0.126 1.00
trans-1,2-Dichloroethene U 0.149 1.00
1,2-Dichloropropane U 0.149 1.00
1,1-Dichloropropene U 0.142 1.00
1,3-Dichloropropane U 0.110 1.00
2,2-Dichloropropane U 0.161 1.00
Di-isopropyl ether U 0.105 1.00
Ethylbenzene U 0.137 1.00
Hexachloro-1,3-butadiene U 0.337 1.00
Isopropylbenzene U 0.105 1.00
p-Isopropyltoluene U 0.120 1.00
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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QUALITY CONTROL SUMMARYWG2094839
Volatile Organic Compounds (GC/MS) by Method 6200B-2011 L1634590-01,02,03,04
Method Blank (MB)
(MB) R3948701-3 07/14/23 10:25
MB Result MB Qualifier MB MDL MB RDL
Analyte ug/l ug/l ug/l
2-Butanone (MEK)U 1.19 10.0
Methylene Chloride U 0.430 5.00
4-Methyl-2-pentanone (MIBK)U 0.478 10.0
Methyl tert-butyl ether U 0.101 1.00
Naphthalene U 1.00 5.00
n-Propylbenzene U 0.0993 1.00
Styrene U 0.118 1.00
1,1,1,2-Tetrachloroethane U 0.147 1.00
1,1,2,2-Tetrachloroethane U 0.133 1.00
Tetrachloroethene U 0.300 1.00
Toluene U 0.278 1.00
1,2,3-Trichlorobenzene U 0.230 1.00
1,2,4-Trichlorobenzene U 0.481 1.00
1,1,1-Trichloroethane U 0.149 1.00
1,1,2-Trichloroethane U 0.158 1.00
Trichloroethene U 0.190 1.00
Trichlorofluoromethane U 0.160 5.00
1,2,3-Trichloropropane U 0.237 2.50
1,2,4-Trimethylbenzene U 0.322 1.00
1,3,5-Trimethylbenzene U 0.104 1.00
Vinyl chloride U 0.234 1.00
o-Xylene U 0.174 1.00
m&p-Xylenes U 0.430 2.00
(S) Toluene-d8 107 80.0-120
(S) 4-Bromofluorobenzene 97.3 77.0-126
(S) 1,2-Dichloroethane-d4 106 70.0-130
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R3948701-1 07/14/23 09:28 • (LCSD) R3948701-2 07/14/23 09:47
Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits
Analyte ug/l ug/l ug/l %%%%%
Acetone 25.0 21.8 22.6 87.2 90.4 19.0-160 3.60 27
Acrolein 25.0 37.2 39.2 149 157 10.0-160 5.24 26
Acrylonitrile 25.0 26.6 25.7 106 103 55.0-149 3.44 20
Benzene 5.00 5.00 5.22 100 104 70.0-123 4.31 20
Bromobenzene 5.00 4.82 4.95 96.4 99.0 73.0-121 2.66 20
Bromodichloromethane 5.00 5.04 5.26 101 105 75.0-120 4.27 20
Bromoform 5.00 4.57 4.62 91.4 92.4 68.0-132 1.09 20
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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QUALITY CONTROL SUMMARYWG2094839
Volatile Organic Compounds (GC/MS) by Method 6200B-2011 L1634590-01,02,03,04
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R3948701-1 07/14/23 09:28 • (LCSD) R3948701-2 07/14/23 09:47
Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits
Analyte ug/l ug/l ug/l %%%%%
Bromomethane 5.00 4.99 5.13 99.8 103 10.0-160 2.77 25
n-Butylbenzene 5.00 4.45 4.94 89.0 98.8 73.0-125 10.4 20
sec-Butylbenzene 5.00 4.63 5.03 92.6 101 75.0-125 8.28 20
tert-Butylbenzene 5.00 4.63 5.03 92.6 101 76.0-124 8.28 20
Carbon tetrachloride 5.00 5.14 5.11 103 102 68.0-126 0.585 20
Chlorobenzene 5.00 4.94 5.01 98.8 100 80.0-121 1.41 20
Chlorodibromomethane 5.00 4.78 4.92 95.6 98.4 77.0-125 2.89 20
Chloroethane 5.00 4.82 4.66 96.4 93.2 47.0-150 3.38 20
Chloroform 5.00 5.04 5.31 101 106 73.0-120 5.22 20
Chloromethane 5.00 5.31 5.06 106 101 41.0-142 4.82 20
2-Chlorotoluene 5.00 4.84 5.04 96.8 101 76.0-123 4.05 20
4-Chlorotoluene 5.00 4.80 5.00 96.0 100 75.0-122 4.08 20
1,2-Dibromo-3-Chloropropane 5.00 4.28 4.29 85.6 85.8 58.0-134 0.233 20
1,2-Dibromoethane 5.00 4.87 5.09 97.4 102 80.0-122 4.42 20
Dibromomethane 5.00 5.05 5.17 101 103 80.0-120 2.35 20
1,2-Dichlorobenzene 5.00 4.68 4.89 93.6 97.8 79.0-121 4.39 20
1,3-Dichlorobenzene 5.00 4.74 5.04 94.8 101 79.0-120 6.13 20
1,4-Dichlorobenzene 5.00 4.69 4.84 93.8 96.8 79.0-120 3.15 20
Dichlorodifluoromethane 5.00 5.10 4.57 102 91.4 51.0-149 11.0 20
1,1-Dichloroethane 5.00 5.21 5.22 104 104 70.0-126 0.192 20
1,2-Dichloroethane 5.00 5.43 5.78 109 116 70.0-128 6.24 20
1,1-Dichloroethene 5.00 4.60 4.61 92.0 92.2 71.0-124 0.217 20
cis-1,2-Dichloroethene 5.00 4.95 4.86 99.0 97.2 73.0-120 1.83 20
trans-1,2-Dichloroethene 5.00 4.91 5.11 98.2 102 73.0-120 3.99 20
1,2-Dichloropropane 5.00 5.28 5.35 106 107 77.0-125 1.32 20
1,1-Dichloropropene 5.00 5.10 5.35 102 107 74.0-126 4.78 20
1,3-Dichloropropane 5.00 4.97 5.14 99.4 103 80.0-120 3.36 20
2,2-Dichloropropane 5.00 5.03 4.92 101 98.4 58.0-130 2.21 20
Di-isopropyl ether 5.00 5.42 5.48 108 110 58.0-138 1.10 20
Ethylbenzene 5.00 4.87 4.86 97.4 97.2 79.0-123 0.206 20
Hexachloro-1,3-butadiene 5.00 4.46 4.98 89.2 99.6 54.0-138 11.0 20
Isopropylbenzene 5.00 4.71 4.79 94.2 95.8 76.0-127 1.68 20
p-Isopropyltoluene 5.00 4.68 5.02 93.6 100 76.0-125 7.01 20
2-Butanone (MEK)25.0 25.9 26.9 104 108 44.0-160 3.79 20
Methylene Chloride 5.00 4.86 4.89 97.2 97.8 67.0-120 0.615 20
4-Methyl-2-pentanone (MIBK)25.0 27.9 27.9 112 112 68.0-142 0.000 20
Methyl tert-butyl ether 5.00 4.62 4.76 92.4 95.2 68.0-125 2.99 20
Naphthalene 5.00 4.08 4.55 81.6 91.0 54.0-135 10.9 20
n-Propylbenzene 5.00 4.77 5.01 95.4 100 77.0-124 4.91 20
Styrene 5.00 4.39 4.67 87.8 93.4 73.0-130 6.18 20
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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QUALITY CONTROL SUMMARYWG2094839
Volatile Organic Compounds (GC/MS) by Method 6200B-2011 L1634590-01,02,03,04
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R3948701-1 07/14/23 09:28 • (LCSD) R3948701-2 07/14/23 09:47
Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits
Analyte ug/l ug/l ug/l %%%%%
1,1,1,2-Tetrachloroethane 5.00 4.76 4.90 95.2 98.0 75.0-125 2.90 20
1,1,2,2-Tetrachloroethane 5.00 4.61 4.64 92.2 92.8 65.0-130 0.649 20
Tetrachloroethene 5.00 5.07 5.00 101 100 72.0-132 1.39 20
Toluene 5.00 4.82 4.91 96.4 98.2 79.0-120 1.85 20
1,2,3-Trichlorobenzene 5.00 4.32 4.81 86.4 96.2 50.0-138 10.7 20
1,2,4-Trichlorobenzene 5.00 4.34 4.66 86.8 93.2 57.0-137 7.11 20
1,1,1-Trichloroethane 5.00 5.09 5.13 102 103 73.0-124 0.783 20
1,1,2-Trichloroethane 5.00 4.84 4.97 96.8 99.4 80.0-120 2.65 20
Trichloroethene 5.00 5.17 5.45 103 109 78.0-124 5.27 20
Trichlorofluoromethane 5.00 4.98 5.02 99.6 100 59.0-147 0.800 20
1,2,3-Trichloropropane 5.00 4.84 5.07 96.8 101 73.0-130 4.64 20
1,2,4-Trimethylbenzene 5.00 4.63 4.84 92.6 96.8 76.0-121 4.44 20
1,3,5-Trimethylbenzene 5.00 4.72 4.99 94.4 99.8 76.0-122 5.56 20
Vinyl chloride 5.00 4.70 4.43 94.0 88.6 67.0-131 5.91 20
o-Xylene 5.00 4.65 4.67 93.0 93.4 80.0-122 0.429 20
m&p-Xylenes 10.0 9.81 9.68 98.1 96.8 80.0-122 1.33 20
(S) Toluene-d8 100 102 80.0-120
(S) 4-Bromofluorobenzene 96.7 95.9 77.0-126
(S) 1,2-Dichloroethane-d4 109 109 70.0-130
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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QUALITY CONTROL SUMMARYWG2096255
Volatile Organic Compounds (GC/MS) by Method 6200B-2011 L1634590-01,03
Method Blank (MB)
(MB) R3950237-4 07/18/23 20:09
MB Result MB Qualifier MB MDL MB RDL
Analyte ug/l ug/l ug/l
Benzene U 0.0941 1.00
Methyl tert-butyl ether U 0.101 1.00
(S) Toluene-d8 103 80.0-120
(S) 4-Bromofluorobenzene 102 77.0-126
(S) 1,2-Dichloroethane-d4 113 70.0-130
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R3950237-1 07/18/23 18:46 • (LCSD) R3950237-2 07/18/23 19:07
Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits
Analyte ug/l ug/l ug/l %%%%%
Benzene 5.00 5.49 5.05 110 101 70.0-123 8.35 20
Methyl tert-butyl ether 5.00 5.65 5.48 113 110 68.0-125 3.05 20
(S) Toluene-d8 99.1 98.4 80.0-120
(S) 4-Bromofluorobenzene 102 102 77.0-126
(S) 1,2-Dichloroethane-d4 112 114 70.0-130
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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GLOSSARY OF TERMS
Guide to Reading and Understanding Your Laboratory Report
The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not
intended as a comprehensive explanation, and if you have additional questions please contact your project representative.
Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name,
Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and
Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received.
Abbreviations and Definitions
MDL Method Detection Limit.
RDL Reported Detection Limit.
Rec.Recovery.
RPD Relative Percent Difference.
SDG Sample Delivery Group.
(S)
Surrogate (Surrogate Standard) - Analytes added to every blank, sample, Laboratory Control Sample/Duplicate and
Matrix Spike/Duplicate; used to evaluate analytical efficiency by measuring recovery. Surrogates are not expected to be
detected in all environmental media.
U Not detected at the Reporting Limit (or MDL where applicable).
Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes
reported.
Dilution
If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the
standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the
laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the
result reported has already been corrected for this factor.
Limits
These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal
for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or
duplicated within these ranges.
Qualifier
This column provides a letter and/or number designation that corresponds to additional information concerning the result
reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and
potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable.
Result
The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was
no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL”
(Below Detectable Levels). The information in the results column should always be accompanied by either an MDL
(Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect
or report for this analyte.
Uncertainty
(Radiochemistry)Confidence level of 2 sigma.
Case Narrative (Cn)
A brief discussion about the included sample results, including a discussion of any non-conformances to protocol
observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will
be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report.
Quality Control
Summary (Qc)
This section of the report includes the results of the laboratory quality control analyses required by procedure or
analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not
being performed on your samples typically, but on laboratory generated material.
Sample Chain of
Custody (Sc)
This is the document created in the field when your samples were initially collected. This is used to verify the time and
date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This
chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the
samples from the time of collection until delivery to the laboratory for analysis.
Sample Results (Sr)
This section of your report will provide the results of all testing performed on your samples. These results are provided
by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for
each sample will provide the name and method number for the analysis reported.
Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and
times of preparation and/or analysis.
Qualifier Description
J The identification of the analyte is acceptable; the reported value is an estimate.
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122
Alabama 40660 Nebraska NE-OS-15-05
Alaska 17-026 Nevada TN000032021-1
Arizona AZ0612 New Hampshire 2975
Arkansas 88-0469 New Jersey–NELAP TN002
California 2932 New Mexico ¹TN00003
Colorado TN00003 New York 11742
Connecticut PH-0197 North Carolina Env375
Florida E87487 North Carolina ¹DW21704
Georgia NELAP North Carolina ³41
Georgia ¹923 North Dakota R-140
Idaho TN00003 Ohio–VAP CL0069
Illinois 200008 Oklahoma 9915
Indiana C-TN-01 Oregon TN200002
Iowa 364 Pennsylvania 68-02979
Kansas E-10277 Rhode Island LAO00356
Kentucky ¹ ⁶KY90010 South Carolina 84004002
Kentucky ²16 South Dakota n/a
Louisiana AI30792 Tennessee ¹ ⁴2006
Louisiana LA018 Texas T104704245-20-18
Maine TN00003 Texas ⁵LAB0152
Maryland 324 Utah TN000032021-11
Massachusetts M-TN003 Vermont VT2006
Michigan 9958 Virginia 110033
Minnesota 047-999-395 Washington C847
Mississippi TN00003 West Virginia 233
Missouri 340 Wisconsin 998093910
Montana CERT0086 Wyoming A2LA
A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789
A2LA – ISO 17025 ⁵1461.02 DOD 1461.01
Canada 1461.01 USDA P330-15-00234
EPA–Crypto TN00003
ACCREDITATIONS & LOCATIONS

¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable
* Not all certifications held by the laboratory are applicable to the results reported in the attached report.
* Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical.
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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Auddies #3

ATC Project No. STL2392601 NCDEQ State Lead Program

APPENDIX D

SITE PHOTOGRAPHS

Photo 1: Front of Site – Facing East.

Photo 2: MMPE Setup – Facing north.
Site Photographs

Auddies #3
6071 Old NC Highway 49
Asheboro, Randolph County, North Carolina
2725 E. Millbrook Road, Suite 121
Raleigh, North Carolina
[phone] FAX [phone]
Photograph Taken By:
Justin Jones
NCDEQ Incident
#23926 ATC Project No.: STL2392601

Photo 3: MMPE Setup – MW-2, facing south.

Photo 4: MMPE Setup – MW-4, facing east.
Site Photographs

Auddies #3
6071 Old NC Highway 49
Asheboro, Randolph County, North Carolina
2725 E. Millbrook Road, Suite 121
Raleigh, North Carolina
[phone] FAX [phone]
Photograph Taken By:
Justin Jones
NCDEQ Incident
#23926 ATC Project No.: STL2392601

Photo 3: MMPE Setup – MW-5, facing east.

Photo 4: MMPE Setup – Site, facing east.
Site Photographs

Auddies #3
6071 Old NC Highway 49
Asheboro, Randolph County, North Carolina
2725 E. Millbrook Road, Suite 121
Raleigh, North Carolina
[phone] FAX [phone]
Photograph Taken By:
Justin Jones
NCDEQ Incident
#23926 ATC Project No.: STL2392601