WS-9947_45123_CA_MRP_20230316

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

March 16, 2023

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

Subject: Groundwater Monitoring Report
First S&L Property
2150 Highway 70
Mebane, Alamance County, North Carolina
NCDEQ Incident No. 45123
ATC Project No.: SLC4512302

Dear Mr. Chapman:

ATC Associates of North Carolina, P.C. (ATC) is submitting the enclosed Groundwater Monitoring Report for
the First S&L Property site. The report presents investigative procedures, field activities, and laboratory
analytical results for a monitoring well installation and groundwater sampling event conducted in August 2022.

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

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

Jeremy Robbins, P.G. Gabriel Araos, P.E.
Project Manager Senior Project Manager
Direct Line: 919-573-1197 Direct Line: 919-573-1205
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

GROUNDWATER MONITORING REPORT
First S&L Property
2150 Highway 70
Mebane, Alamance County, North Carolina
Incident #45123

ATC Project No. SLC4512302

Prepared by:

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

Jeremy Robbins, P.G.
Project Manager
Direct Line: 919-573-1197
Email: [e-mail]

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

March 16, 2023

First S&L Property
March 16, 2023
Page i

ATC Project No. SLC4512302 NCDEQ State Lead Program
Table of Contents
1.0 SITE IDENTIFICATION .......................................................................................................................... 1
2.0 EXECUTIVE SUMMARY ........................................................................................................................ 2
3.0 SITE DESCRIPTION .............................................................................................................................. 2
3.1 SITE CHARACTERIZATION .................................................................................................................................... 2
3.2 SITE BACKGROUND ............................................................................................................................................ 2
3.3 SITE AND REGIONAL GEOLOGY ............................................................................................................................. 3
3.4 SITE AND REGIONAL HYDROGEOLOGY.................................................................................................................... 3
4.0 GROUNDWATER ASSESSMENT ACTIVITIES .................................................................................. 4
4.1 GROUNDWATER LEVELS...................................................................................................................................... 4
4.2 GROUNDWATER QUALITY ................................................................................................................................... 4
5.0 CONCLUSIONS AND RECOMMENDATIONS .................................................................................... 4
6.0 LIMITATIONS .......................................................................................................................................... 5

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

FIGURES:
Figure 1 – Site Topographic Map
Figure 2 – Site Map
Figure 3 – Potential Receptor Map
Figure 4 – Groundwater Analytical Concentration Map

APPENDICES:
Appendix A – Field Notes
Appendix B – Site Photographs
Appendix C – Laboratory Analytical Results

First S&L Property
March 16, 2023
Page 2 of 5

ATC Project No. SLC4512302 NCDEQ State Lead Program
2.0 EXECUTIVE SUMMARY

ATC Associates of North Carolina, P.C. (ATC) has completed a Groundwater Monitoring Report for the
First S&L Property site. This report documents groundwater assessment activities conducted at the site in
August 2022. The activities were performed based on the July 8, 2022, Task Authorization (TA-02) 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 #N122019A between NCDEQ and ATC.

The former UST system at the 2150 Highway 70 property consisted of three 1,000-gallon gasoline USTs
and associated piping and dispensers. The former gasoline service station structure was demolished in
2020. The site was recently used as a commercial self-storage facility. According to historical information,
the site operated as gasoline service station until the 1960s when petroleum was reportedly last sold by the
facility. Three 1,000-gallon gasoline underground storage tanks (USTs) were removed from the site in April
2020. There is one monitoring well (MW-1) associated with the site which was installed during UST closure
activities. There is one water supply well (WSW-1) used for irrigation purposes located approximately 370
feet southwest of the site. Municipal water is available to the site and vicinity.

On August 16, 2022, ATC personnel mobilized to the site to collect groundwater samples from MW-1, MW-
2, and MW-3. The groundwater samples collected from monitoring wells MW-2 and MW-3 did not exceed
the 2L Standards and/or GCLs. LNAPL was detected in well MW-1 at a thickness of 0.19 feet. Groundwater
levels were approximately 4.0 feet lower than the 2021 groundwater levels and can be attributed to the
increase in LNAPL thickness in MW-1.

Since the on-site redevelopment activities have been completed, ATC recommends the installation of an
additional monitoring well west of MW-1 to delineate the extent of LNAPL and groundwater impacts.
Additional remedial efforts may include performing aggressive fluid vapor recovery (AFVR) events to reduce
the LNAPL thickness at the site.

3.0 SITE DESCRIPTION

3.1 SITE CHARACTERIZATION

The First S&L Property site is located at 2150 Highway 70 in Mebane, Alamance County, North Carolina.
The property is currently used as a commercial public storage facility named The Storage Unit LLC and is
owned by Mr. James Lee Wilson. The site consists of a single-story steel beam and metal structure located
along Highway 70. A site topographic map is provided in Figure 1 and a site map in Figure 2.

3.2 SITE BACKGROUND

The former UST system at the 2150 Highway 70 property consisted of three 1,000-gallon gasoline USTs
and associated piping and dispensers. The former gasoline service station structure was demolished in
2020. The most recent landowner prior to The Storage Unit LLC was Wilson Homes, LLC. NCDEQ
determined that Wilson Homes, LLC, neither owned nor operated the former UST system. The UST
inspector for Alamance County, Michelle Sclafani, researched the history of the property and was not able
to determine a tank owner. The property was used for go-karts and possibly a convenience store named
Go-Kart in the 1960s, but the leased ended in 1964. There was no evidence that the tanks were used after
that date. Due to the age of the UST system, the responsible party is unknown. The site was referred to
the NCDEQ State Lead Program in February 2019.

In April 2020, Zebra Environmental and Industrial Services, Inc., (Zebra) removed the three USTs from the
site as documented in an April 24, 2020 UST Closure, 20 Day, and Initial Abatement Action Report
completed by Paragon Environmental Consultants, Inc., (Paragon). According to the report, one UST (T1)
was situated in a tank pit located immediately to the south of the former store building (west tank pit) and
two USTs (T2&T3) were situated in a tank pit located to the southeast of the former store building (east
First S&L Property
March 16, 2023
Page 3 of 5

ATC Project No. SLC4512302 NCDEQ State Lead Program
tank pit). The former dispenser island was situated directly above UST (T1). The USTs were 42 inches in
diameter and 12 feet long. During closure activities, approximately 1,600-gallons of petroleum contact water
was removed from the USTs. Following a visual inspection, the tanks were determined to be in good
condition with minimal surface corrosion observed. Both groundwater and LNAPL were not encountered in
either tank pit. Petroleum odors were noted in the soils beneath the south end of the western tank pit. A
total of six soil samples were collected from beneath the former UST locations at depths of approximately
9 feet below grade surface (bgs). Two soil samples were collected were collected from beneath the former
product piping at depths of 2.5 feet bgs. Laboratory analysis of soil samples collected from the south end
of the west tank pit (TS-1) yielded a concentration of Total Petroleum Hydrocarbons (TPH) Gasoline Range
Organics (GRO) at 53.4 milligrams per kilograms (mg/kg) which exceeds the TPH GRO action level of 50
mg/kg. The remaining soil samples collected resulted in concentrations below detection limits. No
groundwater samples were collected during the closure assessment. In total, approximately 29.29 tons of
contaminated soils were removed from the area directly underneath the south end of the west tank pit. One
“Risk-Based” soil sample collected from west tank pit bottom (PB). Laboratory analysis of the soil sample
yielded concentrations of contaminants in excess of the Soil-to-Water Maximum Soil Contaminant
Concentrations (MSCCs).

On May 1, 2020, Paragon submitted a Limited Site Assessment (LSA) Report documenting the completion
of a receptor survey, installation of a monitoring well, and subsequent groundwater sampling event. One
North Carolina Type II groundwater monitoring well, MW-1, was installed at the site that is constructed of
Schedule 40 PVC screen (0.010-inch slots) from 35 to 20 feet bgs and 2-inch diameter, Schedule 40 PVC
riser to near land surface. Laboratory analysis of the groundwater samples collected from well MW-1,
yielded concentrations of contaminants greater than the applicable NCDEQ Groundwater Quality 2L
Standards. Benzene was listed at a concentration that also exceeded the applicable Gross Contaminant
Level (GCL). The receptor survey identified one water supply well used for irrigation purposes located 370
feet from the site. Public water supplies are available to all of the properties within a radius of 1,000 feet
from 2150 Highway 70. Table 1 presents the water supply well information and Figure 3 presents the
locations of the water supply wells.

On December 3, 2020, the current property owner (The Storage Unit LLC) signed State-Lead Acceptance
letter. A private utility locate was conducted on December 18, 2020, but due to the construction of the
storage unit structure and site grading, the site assessment activities were delayed until July 2021.

On July 17, 2021, ATC oversaw the installation of two on-site monitoring wells (MW-2 and MW-3) to confirm
the extent of the groundwater impacts and to confirm the groundwater flow direction. On June 20, 2021,
site monitoring wells MW-1 through MW-3 were gauged for depth of water. Groundwater samples collected
from monitoring wells MW-2 and MW-3 did not exceed the 2L Standards and/or GCLs. LNAPL was
detected in well MW-1 at a thickness of 0.05 feet. LNAPL had not been detected previously at the site.

3.3 SITE AND REGIONAL GEOLOGY

The site is located in the Carolina Slate Belt of the Piedmont Physiographic Region and is underlain by
metamorphosed granite bedrock of the late Proterozoic to Cambrian age. According to the United States
Department of Agriculture Web Soil Survey, the site is underlain by Cullen clay loam. Lithology encountered
at the site during previous assessment activities consisted of silt with minor amounts of clay to
approximately 35 feet bgs.

3.4 SITE AND REGIONAL HYDROGEOLOGY

The occurrence and movement of groundwater in the Piedmont is within two separate but interconnected
water-bearing zones. A shallow water-bearing zone occurs within the surficial soils and a deeper zone
occurs within the underlying bedrock. Groundwater in the shallow soil zone occurs in the interstitial pore
spaces between the grains comprising the surficial soils. Groundwater in this zone is typically unconfined.
Groundwater movement is generally lateral from recharge areas to small streams that serve as localized
discharge points. The occurrence and movement of groundwater in the underlying water-bearing zone
First S&L Property
March 16, 2023
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ATC Project No. SLC4512302 NCDEQ State Lead Program
within the crystalline bedrock is controlled by secondary joints, fractures and faults within the bedrock. On
a regional scale, the direction of groundwater flow is typically from uplands to major streams and
groundwater sinks. Groundwater at the site was encountered at 28.31 feet bgs. Based on topography,
groundwater flows to the north.

4.0 GROUNDWATER ASSESSMENT ACTIVITIES

4.1 GROUNDWATER LEVELS

On August 16, 2022, site monitoring wells MW-1 through MW-3 were gauged for depth of water.
Approximately 0.19 feet of LNAPL was detected in well MW-1. Depth to groundwater measurements ranged
from 28.04 ft-toc in MW-1 to 28.57 ft-toc in MW-2. Monitoring well construction details and groundwater
elevation data are summarized in Table 2. Groundwater levels in MW-1, MW-2, and MW-3 were
approximately 4.0 feet lower than the July 2021 groundwater levels. This previous groundwater flow figure
indicated the direction of groundwater flow at the site is to the west. Field notes from the sampling event
are included in Appendix A. Photographs of the monitoring well locations are included in Appendix B.

4.2 GROUNDWATER QUALITY

On August 16, 2022, groundwater samples were collected from monitoring wells MW-2 and MW-3.
Groundwater samples were not collected from well MW-1 due to the presence of LNAPL. Samples were
collected in laboratory-approved containers, packed in ice and delivered under chain of custody protocol to
SGS North America Inc., in Scott, Louisiana for analyses. Groundwater samples were analyzed for volatile
organic compounds (VOCs) by Environmental Protection Agency (EPA) Method 6200B.

The analytical results were compared to the 2L Standards and GCLs. No compounds were detected above
the 2L Standards and/or GCLs. Monitoring well analytical results are included in Table 3. Measured field
parameters are summarized in Table 4. A Groundwater Analytical Concentration Map depicting
concentrations exceeding the 2L Standards is included as Figure 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. A field blank sample (FB-1) was collected by pouring containerizing
deionized (DI) water directly into sample containers during field activities. Analytical methods and target
compounds associated with the field blank samples remained consistent with those described previously.
Acetone, methylene chloride, and toluene were detected above laboratory method detection limits, but
below the laboratory reporting limits in the field blank sample. These reported constituents are common
laboratory contaminants are marked with “J-flags,” meaning the concentrations are estimates.

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. 1,2,3-trichlorobenzene was detected in the laboratory
method blank above the method detection limit, but below the laboratory reporting limits. 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.

5.0 CONCLUSIONS AND RECOMMENDATIONS

On behalf of the Trust Fund Branch of the UST Section, ATC completed a Groundwater Monitoring Report
documenting the August 2022 groundwater sampling activities at the First S&L Property site located at
2150 Highway 70 in Mebane, Alamance County, North Carolina. The groundwater samples collected from
First S&L Property
March 16, 2023
Page 5 of 5

ATC Project No. SLC4512302 NCDEQ State Lead Program
monitoring wells MW-2 and MW-3 did not exceed the 2L Standards and/or GCLs. LNAPL was detected in
well MW-1 at a thickness of 0.19 feet. Groundwater levels were approximately 4.0 feet lower than the 2021
groundwater levels and can be attributed to the increase in LNAPL thickness in MW-1. Since the on-site
redevelopment activities have been completed, ATC recommends the installation of an additional
monitoring well west of MW-1 to delineate the extent of LNAPL and groundwater impacts. Additional
remedial efforts may include performing aggressive fluid vapor recovery (AFVR) events to reduce the
LNAPL thickness at the site.

6.0 LIMITATIONS

This report has been prepared for the exclusive use of the NCDEQ. The opinions included herein are based
on information obtained during the study, on our experience in accordance with currently accepted
hydrogeologic and engineering practices, and relevant regulatory guidelines at this time and location. Other
than this, no warranty is implied or intended.
First S&L Property
March 16, 2023

ATC Project No. SLC4512302 NCDEQ State Lead Program
TABLES
TABLE 1
WATER SUPPLY WELL INFORMATION
FIRST S&L PROPERTY
2150 US HIGHWAY 70
MEBANE, ALAMANCE COUNTY, NORTH CAROLINA
NCDEQ INCIDENT #45123
Well ID Well Owner / Mailing Address Well Address Telephone
Number Well Use Method of
Identification
Previously Agreed
to Abandon
Distance from
Source Area (ft.)
Up or Down
Gradient Parcel ID #
WSW-01 Tabatha B. Hyder / 2255 US Highway
70, Mebane, North Carolina 27302 2255 US Highway 70 Unknown Irrigation Visual confirmation N/A 370 SW Down 160723
1. Only water supply wells located within 1,000 feet of the site are included.
2. Ownership information verified using Alamance County Geographic Information System website, table updated August 10, 2021.
Page 1 of 1
TABLE 2
MONITORING WELL CONSTRUCTION AND WATER ELEVATION DATA
FIRST S&L PROPERTY
2150 US HIGHWAY 70
MEBANE, ALAMANCE COUNTY, NORTH CAROLINA
NCDEQ INCIDENT #45123
Well ID Date
Installed
Screened
Interval (ft
bgs)
Depth of Well
(ft bgs)
TOC
Elevation
(feet)
Date
Measured
Depth to
Groundwater
(feet)
Depth to LNAPL
(feet)
LNAPL
Thickness
(feet)
Groundwater
Elevation
(feet)
4/21/20 26.55 ----73.45
7/20/21 24.06 24.01 0.05 75.90
8/16/22 28.04 27.85 0.19 71.80
7/20/21 24.73 ----76.02
8/16/22 28.57 ----72.18
7/20/21 24.45 ----76.02
8/16/22 28.33 ----72.14
2. -- = LNAPL not detected.
3. Corrected groundwater elevation = TOC Elevation - [DTW+(0.8581*LNAPL Thickness)]
100.75
100.47
MW-2 7/16/2021
7/16/2021
22-32
22-32
32
32
4. TOC = Top of casing.
5. Monitoring well MW-1 is the site benchmark at 100.00 feet.
6. ft bgs = feet below ground surface.
MW-1 4/20/2020 24-39 39 100.00
1. LNAPL = Light non-aqueous phase liquid.
MW-3
Page 1 of 1
TABLE 3
GROUNDWATER ANALYTICAL RESULTS
FIRST S&L PROPERTY
2150 US HIGHWAY 70
MEBANE, ALAMANCE COUNTY, NORTH CAROLINA
NCDEQ INCIDENT #45123
6020B
WELL ID Date
Collected
BenzeneTolueneEthylbenzeneXylenes (Total)MTBENaphthaleneAcetoneChloroform2-HexanoneIsopropylbenzenen-Propylbenzene1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneLeadC5-C8 AliphaticsC9-C18 AliphaticsC9-C22 Aromatics4/21/2020 6,390 2,370 2,990 15,860 <250 1,010 <25,000 <250 <500 300 460 1,570 1,550 <10.0 25,200 28,100 <10,000
7/20/2021
8/16/2022
7/20/2021 <0.50 2.9 <0.50 <0.50 <0.50 <0.50 <10 0.33 2.3 <0.50 <0.50 <0.50 <0.50 3.6 <100 <100 <100
8/16/2022 <1.00 <1.00 <1.00 <3.00 <1.00 <5.00 <50.0 0.158 J NA <1.00 <1.00 <1.00 <1.00 NA NA NA NA
7/20/2021 <0.50 0.43 J <0.50 <0.50 <0.50 <0.50 5.1 J <0.50 <1.0 <0.50 <0.50 <0.50 <0.50 2.6 <100 <100 <100
8/16/2022 <1.00 <1.00 <1.00 <3.00 <1.00 <5.00 <50.0 0.443 J NA <1.00 <1.00 <1.00 <1.00 NA NA NA NA
1 600 600 500 20 6 6,000 70 40 70 70 400 400 15 400 700 200
5,000 260,000 80,000 50,000 20,000 6,000 6,000,000 5,900 40,000 30,500 26,100 28,500 24,100 15,000 NE NE NE
Notes:
1. MTBE = Methyl Tertiary Butyl Ether.
2. IPE = Isopropyl Ether.
3. "<" or BDL = Not detected at or above the laboratory reporting limit or laboratory reporting limit.
4. Concentrations are reported in micrograms per liter (ug/l) = parts per billion (ppb).
5. Concentrations in bold equal or exceed the corresponding NCDEQ Groundwater Quality 2L Standard (2L Standard).
6. GCL = Gross Contamination Level (Updated 1/21/2021).
7. LNAPL = Light non-aqueous phase liquid
8. J = Indicates an estimated value.
9. NA = Not Analyzed.
10. Values in italics indicate levels above GCLs.
11. NE = Not Established.
MW-3
MW-2
GCL
2L Standard
ANALYTICAL METHOD MADEP VPH and EPH
Not Sampled - LNAPL
EPA METHOD 6200B
MW-1
Not Sampled - LNAPL
Page 1 of 1
TABLE 4
WATER QUALITY PARAMETERS
FIRST S&L PROPERTY
2150 US HIGHWAY 70
MEBANE, ALAMANCE COUNTY, NORTH CAROLINA
NCDEQ INCIDENT #45123
7/20/2021
8/16/2022
7/20/2021 21.10 5.94 160 6.34 73.0
8/16/2022 19.70 1.44 111.3 5.38 295.2
7/20/2021 20.05 8.08 133 6.61 76.3
8/16/2022 18.50 3.77 117.6 5.99 255.8
Notes:
1. oC = Degrees Celsius.
2. mg/L = Milligrams per Liter.
3. LNAPL = Light non-aqueous phase liquid
4. µs/cm = Micro Siemens per Centimeter.
5. SU = Standard Units.
6. ORP = Oxidation Reduction Potential.
7. mV = Millivolts.
Not Measured - LNAPL
WELL ID Date
Collected
Temperature (oC)MW-3
MW-1
MW-2
Not Measured - LNAPLDissolved Oxygen (mg/L)Conductivity (µs/cm)pH (SU)ORP (mV)Page 1 of 1
First S&L Property
March 16, 2023

ATC Project No. SLC4512302 NCDEQ State Lead Program
FIGURES

VICINITY MAP
1"= 2,000'
1
Project Number:
Date:Scale:
Drawing File:
Figure:
App'd By:
Drn. By:
Ckd. By:
N
H:\2021\OTHER OFFICES\NORTH CAROLINA\NCDEQ-STATE LEAD\FIRST S&L\SLC4512301-VIC.DWG, FIG109/13/2022
SEE LOWER LEFT
FIRST S&L PROPERTY
2450 EAST MAIN STREET
MEBANE, ALAMANCE COUNTY, NORTH CAROLINA
NCDEQ INCIDENT #45123
SLC4512302 DH
NK
NK
EAST MAIN STREETFORMERSITE BUILDINGLEGEND:SITE PROPERTY LINENOTE: ALL LOCATIONS ARE APPROXIMATEPARCEL LINESCALE: 1" = 20'05101520NAREA OF EXCAVATION(3) FORMER 1,000 GAL.GASOLINE USTsFORMERDISPENSERISLANDMW-1MW-1MONITORING WELLWell IdentificationMW-2MW-3T1T2T3SB-1SB-1SOIL BORINGBoring IdentificationFigure:Drawing File:
Project Number:
Ckd. By:
Drn. By:
App'd By:
Ckd. Date:Scale:Date:H:\2021\OTHER OFFICES\NORTH CAROLINA\NCDEQ-STATE LEAD\FIRST S&L\SLC4512301-SITE.DWG, FIG2
SITE MAP09/13/2022SEE LOWER LEFTFIRST S&L PROPERTY
2150 EAST MAIN STREET
MEBANE, ALAMANCE COUNTY, NORTH CAROLINA
NCDEQ INCEDENT #45123
SLC4512302AS SHOWNDH
NK2NOTES:
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
WSW-1EAST MAIN STREET50SCALE: 1" = 200'0100150200N500 FT.RADIUS1,000 FT.RADIUSSITELEGEND:SITE PROPERTY LINENOTE: ALL LOCATIONS ARE APPROXIMATEPARCEL LINEWATER SUPPLY WELLWell IdentificationWSW-1Figure:Drawing File:
Project Number:
Ckd. By:
Drn. By:
App'd By:
Ckd. Date:Scale:Date:H:\2021\OTHER OFFICES\NORTH CAROLINA\NCDEQ-STATE LEAD\FIRST S&L\SLC4512301-WSW.DWG, FIG3
POTENTIAL RECEPTOR MAP09/13/2022SEE LOWER LEFTFIRST S&L PROPERTY
2150 EAST MAIN STREET
MEBANE, ALAMANCE COUNTY, NORTH CAROLINA
NCDEQ INCEDENT #45123
SLC4512302AS SHOWNDH
NK3NOTES:
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
EAST MAIN STREETFORMERSITE BUILDINGLEGEND:SITE PROPERTY LINENOTE: ALL LOCATIONS ARE APPROXIMATEPARCEL LINESCALE: 1" = 20'05101520NAREA OF EXCAVATION(3) FORMER 1,000 GAL.GASOLINE USTsFORMERDISPENSERISLANDMW-1MW-1MONITORING WELLWell IdentificationMW-2T1T2T30.19 ft. of LNAPLMW-3Figure:Drawing File:
Project Number:
Ckd. By:
Drn. By:
App'd By:
Ckd. Date:Scale:Date:H:\2021\OTHER OFFICES\NORTH CAROLINA\NCDEQ-STATE LEAD\FIRST S&L\SLC4512301-GW.DWG, FIG6
GOURNDWATER ANALYTICAL CONCENTRATION MAP09/13/2022SEE LOWER LEFTFIRST S&L PROPERTY
2150 EAST MAIN STREET
MEBANE, ALAMANCE COUNTY, NORTH CAROLINA
NCDEQ INCEDENT #45123
SLC4512302AS SHOWNDH
NK4NOTES:
1.Features shown are not an authoritative location, nor are they presented
to a stated accuracy.
2.LNAPL = LIGHT NON-AQUEOUS PHASE LIQUID
COORDINATE SYSTEM:
NAD 1983 NORTH CAROLINA STATE PLANE FIPS 3200, US SURVEY FEET
First S&L Property
March 16, 2023

ATC Project No. SLC4512302 NCDEQ State Lead Program
APPENDIX A

FIELD NOTES

First S&L Property
March 16, 2023

ATC Project No. SLC4512302 NCDEQ State Lead Program
APPENDIX B

SITE PHOTOGRAPHS

Photo 1: Site building facing northwest. Photo 2: Site building facing west.
Site Photographs

First S&L Property – Incident #45123

2150 Highway 70
Mebane, Alamance County, North Carolina
2725 E. Millbrook Road, Suite 121
Raleigh, North Carolina
Tel: [phone] Fax: [phone]
Photos Taken By: Corinne Lally Site ID: Incident #45123 ATC Project No.: SLC4512302

Photo 3: Monitoring well MW-1 facing east. Photo 4: Monitoring well MW-2 facing west.
Site Photographs

First S&L Property – Incident #45123

2150 Highway 70
Mebane, Alamance County, North Carolina
2725 E. Millbrook Road, Suite 121
Raleigh, North Carolina
Tel: [phone] Fax: [phone]
Photos Taken By: Corinne Lally Site ID: Incident #45123 ATC Project No.: SLC4512302

Photo 5: Monitoring well MW-3 facing south.
Site Photographs

First S&L Property – Incident #45123

2150 Highway 70
Mebane, Alamance County, North Carolina
2725 E. Millbrook Road, Suite 121
Raleigh, North Carolina
Tel: [phone] Fax: [phone]
Photos Taken By: Corinne Lally Site ID: Incident #45123 ATC Project No.: SLC4512302
First S&L Property
March 16, 2023

ATC Project No. SLC4512302 NCDEQ State Lead Program
APPENDIX C

LABORATORY ANALYTICAL RESULTS

ANALYTICAL REPORT
August 26, 2022
ATC Group Services LLC
Sample Delivery Group:L1526871
Samples Received:08/18/2022
Project Number:
Description:First S&L Property
Report To:Jeremy Robbins
2725 E. Millbrook Road, Ste 121
Raleigh, NC 27604
Entire Report Reviewed By:
August 26, 2022
[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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August 26, 2022
Heather J Wagner
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 L1526871-01 5
MW-3 L1526871-02 7
FB-1 L1526871-03 9
Qc: Quality Control Summary 11
Volatile Organic Compounds (GC/MS) by Method 6200B-2011 11
Gl: Glossary of Terms 19
Al: Accreditations & Locations 20
Sc: Sample Chain of Custody 21
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 L1526871-01 GW C. Lally 08/16/22 14:35 08/18/22 08:45
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG1916810 1 08/26/22 00:51 08/26/22 00:51 ADM Mt. Juliet, TN
Collected by Collected date/time Received date/time
MW-3 L1526871-02 GW C. Lally 08/16/22 15:00 08/18/22 08:45
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG1916810 1 08/26/22 01:12 08/26/22 01:12 ADM Mt. Juliet, TN
Collected by Collected date/time Received date/time
FB-1 L1526871-03 GW C. Lally 08/16/22 15:15 08/18/22 08:45
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG1914147 1 08/21/22 12:18 08/21/22 12:18 JAH Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG1916810 1 08/26/22 01:33 08/26/22 01:33 ADM 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
L1526871
MW-2
Collected date/time: 08/16/22 14:35
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 11.3 50.0 1 08/26/2022 00:51 WG1916810
Acrolein U 2.54 50.0 1 08/26/2022 00:51 WG1916810
Acrylonitrile U 0.671 10.0 1 08/26/2022 00:51 WG1916810
Benzene U 0.0941 1.00 1 08/26/2022 00:51 WG1916810
Bromobenzene U 0.118 1.00 1 08/26/2022 00:51 WG1916810
Bromodichloromethane U 0.136 1.00 1 08/26/2022 00:51 WG1916810
Bromoform U 0.129 1.00 1 08/26/2022 00:51 WG1916810
Bromomethane U C4 0.605 5.00 1 08/26/2022 00:51 WG1916810
n-Butylbenzene U 0.157 1.00 1 08/26/2022 00:51 WG1916810
sec-Butylbenzene U 0.125 1.00 1 08/26/2022 00:51 WG1916810
tert-Butylbenzene U 0.127 1.00 1 08/26/2022 00:51 WG1916810
Carbon tetrachloride U 0.128 1.00 1 08/26/2022 00:51 WG1916810
Chlorobenzene U 0.116 1.00 1 08/26/2022 00:51 WG1916810
Chlorodibromomethane U 0.140 1.00 1 08/26/2022 00:51 WG1916810
Chloroethane U 0.192 5.00 1 08/26/2022 00:51 WG1916810
Chloroform 0.158 J 0.111 5.00 1 08/26/2022 00:51 WG1916810
Chloromethane U 0.960 2.50 1 08/26/2022 00:51 WG1916810
2-Chlorotoluene U 0.106 1.00 1 08/26/2022 00:51 WG1916810
4-Chlorotoluene U 0.114 1.00 1 08/26/2022 00:51 WG1916810
1,2-Dibromo-3-Chloropropane U 0.276 5.00 1 08/26/2022 00:51 WG1916810
1,2-Dibromoethane U 0.126 1.00 1 08/26/2022 00:51 WG1916810
Dibromomethane U 0.122 1.00 1 08/26/2022 00:51 WG1916810
1,2-Dichlorobenzene U 0.107 1.00 1 08/26/2022 00:51 WG1916810
1,3-Dichlorobenzene U 0.110 1.00 1 08/26/2022 00:51 WG1916810
1,4-Dichlorobenzene U 0.120 1.00 1 08/26/2022 00:51 WG1916810
Dichlorodifluoromethane U 0.374 5.00 1 08/26/2022 00:51 WG1916810
1,1-Dichloroethane U 0.100 1.00 1 08/26/2022 00:51 WG1916810
1,2-Dichloroethane U 0.0819 1.00 1 08/26/2022 00:51 WG1916810
1,1-Dichloroethene U 0.188 1.00 1 08/26/2022 00:51 WG1916810
cis-1,2-Dichloroethene U 0.126 1.00 1 08/26/2022 00:51 WG1916810
trans-1,2-Dichloroethene U 0.149 1.00 1 08/26/2022 00:51 WG1916810
1,2-Dichloropropane U 0.149 1.00 1 08/26/2022 00:51 WG1916810
1,1-Dichloropropene U 0.142 1.00 1 08/26/2022 00:51 WG1916810
1,3-Dichloropropane U 0.110 1.00 1 08/26/2022 00:51 WG1916810
2,2-Dichloropropane U 0.161 1.00 1 08/26/2022 00:51 WG1916810
Di-isopropyl ether U 0.105 1.00 1 08/26/2022 00:51 WG1916810
Ethylbenzene U 0.137 1.00 1 08/26/2022 00:51 WG1916810
Hexachloro-1,3-butadiene U 0.337 1.00 1 08/26/2022 00:51 WG1916810
Isopropylbenzene U 0.105 1.00 1 08/26/2022 00:51 WG1916810
p-Isopropyltoluene U 0.120 1.00 1 08/26/2022 00:51 WG1916810
2-Butanone (MEK)U 1.19 10.0 1 08/26/2022 00:51 WG1916810
Methylene Chloride U 0.430 5.00 1 08/26/2022 00:51 WG1916810
4-Methyl-2-pentanone (MIBK)U 0.478 10.0 1 08/26/2022 00:51 WG1916810
Methyl tert-butyl ether U 0.101 1.00 1 08/26/2022 00:51 WG1916810
Naphthalene U 1.00 5.00 1 08/26/2022 00:51 WG1916810
n-Propylbenzene U 0.0993 1.00 1 08/26/2022 00:51 WG1916810
Styrene U 0.118 1.00 1 08/26/2022 00:51 WG1916810
1,1,1,2-Tetrachloroethane U 0.147 1.00 1 08/26/2022 00:51 WG1916810
1,1,2,2-Tetrachloroethane U 0.133 1.00 1 08/26/2022 00:51 WG1916810
Tetrachloroethene U 0.300 1.00 1 08/26/2022 00:51 WG1916810
Toluene U 0.278 1.00 1 08/26/2022 00:51 WG1916810
1,2,3-Trichlorobenzene U 0.230 1.00 1 08/26/2022 00:51 WG1916810
1,2,4-Trichlorobenzene U 0.481 1.00 1 08/26/2022 00:51 WG1916810
1,1,1-Trichloroethane U 0.149 1.00 1 08/26/2022 00:51 WG1916810
1,1,2-Trichloroethane U 0.158 1.00 1 08/26/2022 00:51 WG1916810
Trichloroethene U 0.190 1.00 1 08/26/2022 00:51 WG1916810
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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SAMPLE RESULTS - 01
L1526871
MW-2
Collected date/time: 08/16/22 14:35
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 08/26/2022 00:51 WG1916810
1,2,3-Trichloropropane U 0.237 2.50 1 08/26/2022 00:51 WG1916810
1,2,4-Trimethylbenzene U 0.322 1.00 1 08/26/2022 00:51 WG1916810
1,3,5-Trimethylbenzene U 0.104 1.00 1 08/26/2022 00:51 WG1916810
Vinyl chloride U 0.234 1.00 1 08/26/2022 00:51 WG1916810
o-Xylene U 0.174 1.00 1 08/26/2022 00:51 WG1916810
m&p-Xylenes U 0.430 2.00 1 08/26/2022 00:51 WG1916810
(S) Toluene-d8 107 80.0-120 08/26/2022 00:51 WG1916810
(S) 4-Bromofluorobenzene 109 77.0-126 08/26/2022 00:51 WG1916810
(S) 1,2-Dichloroethane-d4 110 70.0-130 08/26/2022 00:51 WG1916810
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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SAMPLE RESULTS - 02
L1526871
MW-3
Collected date/time: 08/16/22 15:00
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 11.3 50.0 1 08/26/2022 01:12 WG1916810
Acrolein U 2.54 50.0 1 08/26/2022 01:12 WG1916810
Acrylonitrile U 0.671 10.0 1 08/26/2022 01:12 WG1916810
Benzene U 0.0941 1.00 1 08/26/2022 01:12 WG1916810
Bromobenzene U 0.118 1.00 1 08/26/2022 01:12 WG1916810
Bromodichloromethane U 0.136 1.00 1 08/26/2022 01:12 WG1916810
Bromoform U 0.129 1.00 1 08/26/2022 01:12 WG1916810
Bromomethane U C4 0.605 5.00 1 08/26/2022 01:12 WG1916810
n-Butylbenzene U 0.157 1.00 1 08/26/2022 01:12 WG1916810
sec-Butylbenzene U 0.125 1.00 1 08/26/2022 01:12 WG1916810
tert-Butylbenzene U 0.127 1.00 1 08/26/2022 01:12 WG1916810
Carbon tetrachloride U 0.128 1.00 1 08/26/2022 01:12 WG1916810
Chlorobenzene U 0.116 1.00 1 08/26/2022 01:12 WG1916810
Chlorodibromomethane U 0.140 1.00 1 08/26/2022 01:12 WG1916810
Chloroethane U 0.192 5.00 1 08/26/2022 01:12 WG1916810
Chloroform 0.443 J 0.111 5.00 1 08/26/2022 01:12 WG1916810
Chloromethane U 0.960 2.50 1 08/26/2022 01:12 WG1916810
2-Chlorotoluene U 0.106 1.00 1 08/26/2022 01:12 WG1916810
4-Chlorotoluene U 0.114 1.00 1 08/26/2022 01:12 WG1916810
1,2-Dibromo-3-Chloropropane U 0.276 5.00 1 08/26/2022 01:12 WG1916810
1,2-Dibromoethane U 0.126 1.00 1 08/26/2022 01:12 WG1916810
Dibromomethane U 0.122 1.00 1 08/26/2022 01:12 WG1916810
1,2-Dichlorobenzene U 0.107 1.00 1 08/26/2022 01:12 WG1916810
1,3-Dichlorobenzene U 0.110 1.00 1 08/26/2022 01:12 WG1916810
1,4-Dichlorobenzene U 0.120 1.00 1 08/26/2022 01:12 WG1916810
Dichlorodifluoromethane U 0.374 5.00 1 08/26/2022 01:12 WG1916810
1,1-Dichloroethane U 0.100 1.00 1 08/26/2022 01:12 WG1916810
1,2-Dichloroethane U 0.0819 1.00 1 08/26/2022 01:12 WG1916810
1,1-Dichloroethene U 0.188 1.00 1 08/26/2022 01:12 WG1916810
cis-1,2-Dichloroethene U 0.126 1.00 1 08/26/2022 01:12 WG1916810
trans-1,2-Dichloroethene U 0.149 1.00 1 08/26/2022 01:12 WG1916810
1,2-Dichloropropane U 0.149 1.00 1 08/26/2022 01:12 WG1916810
1,1-Dichloropropene U 0.142 1.00 1 08/26/2022 01:12 WG1916810
1,3-Dichloropropane U 0.110 1.00 1 08/26/2022 01:12 WG1916810
2,2-Dichloropropane U 0.161 1.00 1 08/26/2022 01:12 WG1916810
Di-isopropyl ether U 0.105 1.00 1 08/26/2022 01:12 WG1916810
Ethylbenzene U 0.137 1.00 1 08/26/2022 01:12 WG1916810
Hexachloro-1,3-butadiene U 0.337 1.00 1 08/26/2022 01:12 WG1916810
Isopropylbenzene U 0.105 1.00 1 08/26/2022 01:12 WG1916810
p-Isopropyltoluene U 0.120 1.00 1 08/26/2022 01:12 WG1916810
2-Butanone (MEK)U 1.19 10.0 1 08/26/2022 01:12 WG1916810
Methylene Chloride U 0.430 5.00 1 08/26/2022 01:12 WG1916810
4-Methyl-2-pentanone (MIBK)U 0.478 10.0 1 08/26/2022 01:12 WG1916810
Methyl tert-butyl ether U 0.101 1.00 1 08/26/2022 01:12 WG1916810
Naphthalene U 1.00 5.00 1 08/26/2022 01:12 WG1916810
n-Propylbenzene U 0.0993 1.00 1 08/26/2022 01:12 WG1916810
Styrene U 0.118 1.00 1 08/26/2022 01:12 WG1916810
1,1,1,2-Tetrachloroethane U 0.147 1.00 1 08/26/2022 01:12 WG1916810
1,1,2,2-Tetrachloroethane U 0.133 1.00 1 08/26/2022 01:12 WG1916810
Tetrachloroethene U 0.300 1.00 1 08/26/2022 01:12 WG1916810
Toluene U 0.278 1.00 1 08/26/2022 01:12 WG1916810
1,2,3-Trichlorobenzene U 0.230 1.00 1 08/26/2022 01:12 WG1916810
1,2,4-Trichlorobenzene U 0.481 1.00 1 08/26/2022 01:12 WG1916810
1,1,1-Trichloroethane U 0.149 1.00 1 08/26/2022 01:12 WG1916810
1,1,2-Trichloroethane U 0.158 1.00 1 08/26/2022 01:12 WG1916810
Trichloroethene U 0.190 1.00 1 08/26/2022 01:12 WG1916810
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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SAMPLE RESULTS - 02
L1526871
MW-3
Collected date/time: 08/16/22 15:00
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 0.160 5.00 1 08/26/2022 01:12 WG1916810
1,2,3-Trichloropropane U 0.237 2.50 1 08/26/2022 01:12 WG1916810
1,2,4-Trimethylbenzene U 0.322 1.00 1 08/26/2022 01:12 WG1916810
1,3,5-Trimethylbenzene U 0.104 1.00 1 08/26/2022 01:12 WG1916810
Vinyl chloride U 0.234 1.00 1 08/26/2022 01:12 WG1916810
o-Xylene U 0.174 1.00 1 08/26/2022 01:12 WG1916810
m&p-Xylenes U 0.430 2.00 1 08/26/2022 01:12 WG1916810
(S) Toluene-d8 111 80.0-120 08/26/2022 01:12 WG1916810
(S) 4-Bromofluorobenzene 106 77.0-126 08/26/2022 01:12 WG1916810
(S) 1,2-Dichloroethane-d4 113 70.0-130 08/26/2022 01:12 WG1916810
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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SAMPLE RESULTS - 03
L1526871
FB-1
Collected date/time: 08/16/22 15:15
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 12.1 J 11.3 50.0 1 08/26/2022 01:33 WG1916810
Acrolein U 2.54 50.0 1 08/26/2022 01:33 WG1916810
Acrylonitrile U J4 0.671 10.0 1 08/21/2022 12:18 WG1914147
Benzene U 0.0941 1.00 1 08/21/2022 12:18 WG1914147
Bromobenzene U 0.118 1.00 1 08/21/2022 12:18 WG1914147
Bromodichloromethane U 0.136 1.00 1 08/21/2022 12:18 WG1914147
Bromoform U 0.129 1.00 1 08/21/2022 12:18 WG1914147
Bromomethane U 0.605 5.00 1 08/21/2022 12:18 WG1914147
n-Butylbenzene U 0.157 1.00 1 08/21/2022 12:18 WG1914147
sec-Butylbenzene U 0.125 1.00 1 08/21/2022 12:18 WG1914147
tert-Butylbenzene U 0.127 1.00 1 08/21/2022 12:18 WG1914147
Carbon tetrachloride U 0.128 1.00 1 08/21/2022 12:18 WG1914147
Chlorobenzene U 0.116 1.00 1 08/21/2022 12:18 WG1914147
Chlorodibromomethane U 0.140 1.00 1 08/21/2022 12:18 WG1914147
Chloroethane U 0.192 5.00 1 08/21/2022 12:18 WG1914147
Chloroform U 0.111 5.00 1 08/21/2022 12:18 WG1914147
Chloromethane U 0.960 2.50 1 08/21/2022 12:18 WG1914147
2-Chlorotoluene U 0.106 1.00 1 08/21/2022 12:18 WG1914147
4-Chlorotoluene U 0.114 1.00 1 08/21/2022 12:18 WG1914147
1,2-Dibromo-3-Chloropropane U 0.276 5.00 1 08/21/2022 12:18 WG1914147
1,2-Dibromoethane U 0.126 1.00 1 08/21/2022 12:18 WG1914147
Dibromomethane U 0.122 1.00 1 08/21/2022 12:18 WG1914147
1,2-Dichlorobenzene U 0.107 1.00 1 08/21/2022 12:18 WG1914147
1,3-Dichlorobenzene U 0.110 1.00 1 08/21/2022 12:18 WG1914147
1,4-Dichlorobenzene U 0.120 1.00 1 08/21/2022 12:18 WG1914147
Dichlorodifluoromethane U 0.374 5.00 1 08/21/2022 12:18 WG1914147
1,1-Dichloroethane U 0.100 1.00 1 08/21/2022 12:18 WG1914147
1,2-Dichloroethane U 0.0819 1.00 1 08/21/2022 12:18 WG1914147
1,1-Dichloroethene U 0.188 1.00 1 08/21/2022 12:18 WG1914147
cis-1,2-Dichloroethene U 0.126 1.00 1 08/21/2022 12:18 WG1914147
trans-1,2-Dichloroethene U 0.149 1.00 1 08/21/2022 12:18 WG1914147
1,2-Dichloropropane U 0.149 1.00 1 08/21/2022 12:18 WG1914147
1,1-Dichloropropene U 0.142 1.00 1 08/21/2022 12:18 WG1914147
1,3-Dichloropropane U 0.110 1.00 1 08/21/2022 12:18 WG1914147
2,2-Dichloropropane U 0.161 1.00 1 08/21/2022 12:18 WG1914147
Di-isopropyl ether U J4 0.105 1.00 1 08/21/2022 12:18 WG1914147
Ethylbenzene U 0.137 1.00 1 08/21/2022 12:18 WG1914147
Hexachloro-1,3-butadiene U 0.337 1.00 1 08/21/2022 12:18 WG1914147
Isopropylbenzene U 0.105 1.00 1 08/21/2022 12:18 WG1914147
p-Isopropyltoluene U 0.120 1.00 1 08/21/2022 12:18 WG1914147
2-Butanone (MEK)U 1.19 10.0 1 08/26/2022 01:33 WG1916810
Methylene Chloride 3.12 J 0.430 5.00 1 08/21/2022 12:18 WG1914147
4-Methyl-2-pentanone (MIBK)U J4 0.478 10.0 1 08/21/2022 12:18 WG1914147
Methyl tert-butyl ether U 0.101 1.00 1 08/21/2022 12:18 WG1914147
Naphthalene U 1.00 5.00 1 08/21/2022 12:18 WG1914147
n-Propylbenzene U 0.0993 1.00 1 08/21/2022 12:18 WG1914147
Styrene U 0.118 1.00 1 08/21/2022 12:18 WG1914147
1,1,1,2-Tetrachloroethane U 0.147 1.00 1 08/21/2022 12:18 WG1914147
1,1,2,2-Tetrachloroethane U 0.133 1.00 1 08/21/2022 12:18 WG1914147
Tetrachloroethene U 0.300 1.00 1 08/21/2022 12:18 WG1914147
Toluene 0.307 J 0.278 1.00 1 08/21/2022 12:18 WG1914147
1,2,3-Trichlorobenzene U 0.230 1.00 1 08/21/2022 12:18 WG1914147
1,2,4-Trichlorobenzene U 0.481 1.00 1 08/21/2022 12:18 WG1914147
1,1,1-Trichloroethane U 0.149 1.00 1 08/21/2022 12:18 WG1914147
1,1,2-Trichloroethane U 0.158 1.00 1 08/21/2022 12:18 WG1914147
Trichloroethene U 0.190 1.00 1 08/21/2022 12:18 WG1914147
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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SAMPLE RESULTS - 03
L1526871
FB-1
Collected date/time: 08/16/22 15:15
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 08/21/2022 12:18 WG1914147
1,2,3-Trichloropropane U 0.237 2.50 1 08/21/2022 12:18 WG1914147
1,2,4-Trimethylbenzene U 0.322 1.00 1 08/21/2022 12:18 WG1914147
1,3,5-Trimethylbenzene U 0.104 1.00 1 08/21/2022 12:18 WG1914147
Vinyl chloride U 0.234 1.00 1 08/21/2022 12:18 WG1914147
o-Xylene U 0.174 1.00 1 08/21/2022 12:18 WG1914147
m&p-Xylenes U 0.430 2.00 1 08/21/2022 12:18 WG1914147
(S) Toluene-d8 109 80.0-120 08/21/2022 12:18 WG1914147
(S) Toluene-d8 109 80.0-120 08/26/2022 01:33 WG1916810
(S) 4-Bromofluorobenzene 102 77.0-126 08/21/2022 12:18 WG1914147
(S) 4-Bromofluorobenzene 105 77.0-126 08/26/2022 01:33 WG1916810
(S) 1,2-Dichloroethane-d4 119 70.0-130 08/21/2022 12:18 WG1914147
(S) 1,2-Dichloroethane-d4 116 70.0-130 08/26/2022 01:33 WG1916810
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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QUALITY CONTROL SUMMARYWG1914147
Volatile Organic Compounds (GC/MS) by Method 6200B-2011 L1526871-03
Method Blank (MB)
(MB) R3830621-2 08/21/22 11:45
MB Result MB Qualifier MB MDL MB RDL
Analyte ug/l ug/l ug/l
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
Methylene Chloride U 0.430 5.00
4-Methyl-2-pentanone (MIBK)U 0.478 10.0
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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QUALITY CONTROL SUMMARYWG1914147
Volatile Organic Compounds (GC/MS) by Method 6200B-2011 L1526871-03
Method Blank (MB)
(MB) R3830621-2 08/21/22 11:45
MB Result MB Qualifier MB MDL MB RDL
Analyte ug/l ug/l ug/l
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 0.406 J 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 113 80.0-120
(S) 4-Bromofluorobenzene 100 77.0-126
(S) 1,2-Dichloroethane-d4 118 70.0-130
Laboratory Control Sample (LCS)
(LCS) R3830621-1 08/21/22 11:03
Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier
Analyte ug/l ug/l %%
Acrylonitrile 25.0 42.1 168 55.0-149 J4
Benzene 5.00 5.65 113 70.0-123
Bromobenzene 5.00 6.03 121 73.0-121
Bromodichloromethane 5.00 5.25 105 75.0-120
Bromoform 5.00 4.02 80.4 68.0-132
Bromomethane 5.00 4.82 96.4 10.0-160
n-Butylbenzene 5.00 5.43 109 73.0-125
sec-Butylbenzene 5.00 5.31 106 75.0-125
tert-Butylbenzene 5.00 5.33 107 76.0-124
Carbon tetrachloride 5.00 5.60 112 68.0-126
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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QUALITY CONTROL SUMMARYWG1914147
Volatile Organic Compounds (GC/MS) by Method 6200B-2011 L1526871-03
Laboratory Control Sample (LCS)
(LCS) R3830621-1 08/21/22 11:03
Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier
Analyte ug/l ug/l %%
Chlorobenzene 5.00 4.75 95.0 80.0-121
Chlorodibromomethane 5.00 4.51 90.2 77.0-125
Chloroethane 5.00 5.88 118 47.0-150
Chloroform 5.00 5.14 103 73.0-120
Chloromethane 5.00 7.07 141 41.0-142
2-Chlorotoluene 5.00 5.68 114 76.0-123
4-Chlorotoluene 5.00 5.50 110 75.0-122
1,2-Dibromo-3-Chloropropane 5.00 5.38 108 58.0-134
1,2-Dibromoethane 5.00 4.92 98.4 80.0-122
Dibromomethane 5.00 5.41 108 80.0-120
1,2-Dichlorobenzene 5.00 5.27 105 79.0-121
1,3-Dichlorobenzene 5.00 4.96 99.2 79.0-120
1,4-Dichlorobenzene 5.00 5.35 107 79.0-120
Dichlorodifluoromethane 5.00 5.72 114 51.0-149
1,1-Dichloroethane 5.00 5.92 118 70.0-126
1,2-Dichloroethane 5.00 5.73 115 70.0-128
1,1-Dichloroethene 5.00 5.32 106 71.0-124
cis-1,2-Dichloroethene 5.00 5.18 104 73.0-120
trans-1,2-Dichloroethene 5.00 5.31 106 73.0-120
1,2-Dichloropropane 5.00 5.98 120 77.0-125
1,1-Dichloropropene 5.00 5.41 108 74.0-126
1,3-Dichloropropane 5.00 5.52 110 80.0-120
2,2-Dichloropropane 5.00 5.94 119 58.0-130
Di-isopropyl ether 5.00 7.14 143 58.0-138 J4
Ethylbenzene 5.00 4.89 97.8 79.0-123
Hexachloro-1,3-butadiene 5.00 4.86 97.2 54.0-138
Isopropylbenzene 5.00 5.04 101 76.0-127
p-Isopropyltoluene 5.00 5.17 103 76.0-125
Methylene Chloride 5.00 5.40 108 67.0-120
4-Methyl-2-pentanone (MIBK)25.0 39.8 159 68.0-142 J4
Methyl tert-butyl ether 5.00 6.07 121 68.0-125
Naphthalene 5.00 4.71 94.2 54.0-135
n-Propylbenzene 5.00 5.92 118 77.0-124
Styrene 5.00 4.75 95.0 73.0-130
1,1,1,2-Tetrachloroethane 5.00 4.82 96.4 75.0-125
1,1,2,2-Tetrachloroethane 5.00 6.15 123 65.0-130
Tetrachloroethene 5.00 4.89 97.8 72.0-132
Toluene 5.00 5.38 108 79.0-120
1,2,3-Trichlorobenzene 5.00 4.63 92.6 50.0-138
1,2,4-Trichlorobenzene 5.00 4.64 92.8 57.0-137
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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QUALITY CONTROL SUMMARYWG1914147
Volatile Organic Compounds (GC/MS) by Method 6200B-2011 L1526871-03
Laboratory Control Sample (LCS)
(LCS) R3830621-1 08/21/22 11:03
Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier
Analyte ug/l ug/l %%
1,1,1-Trichloroethane 5.00 5.41 108 73.0-124
1,1,2-Trichloroethane 5.00 4.93 98.6 80.0-120
Trichloroethene 5.00 4.94 98.8 78.0-124
Trichlorofluoromethane 5.00 4.79 95.8 59.0-147
1,2,3-Trichloropropane 5.00 5.89 118 73.0-130
1,2,4-Trimethylbenzene 5.00 5.44 109 76.0-121
1,3,5-Trimethylbenzene 5.00 5.68 114 76.0-122
Vinyl chloride 5.00 5.81 116 67.0-131
o-Xylene 5.00 4.96 99.2 80.0-122
m&p-Xylenes 10.0 9.80 98.0 80.0-122
(S) Toluene-d8 110 80.0-120
(S) 4-Bromofluorobenzene 103 77.0-126
(S) 1,2-Dichloroethane-d4 121 70.0-130
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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QUALITY CONTROL SUMMARYWG1916810
Volatile Organic Compounds (GC/MS) by Method 6200B-2011 L1526871-01,02,03
Method Blank (MB)
(MB) R3830700-4 08/25/22 22:01
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 SUMMARYWG1916810
Volatile Organic Compounds (GC/MS) by Method 6200B-2011 L1526871-01,02,03
Method Blank (MB)
(MB) R3830700-4 08/25/22 22:01
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 108 80.0-120
(S) 4-Bromofluorobenzene 105 77.0-126
(S) 1,2-Dichloroethane-d4 109 70.0-130
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R3830700-1 08/25/22 20:37 • (LCSD) R3830700-2 08/25/22 20:58
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 24.0 23.9 96.0 95.6 19.0-160 0.418 27
Acrolein 25.0 24.2 20.6 96.8 82.4 10.0-160 16.1 26
Acrylonitrile 25.0 27.7 25.1 111 100 55.0-149 9.85 20
Benzene 5.00 5.07 5.33 101 107 70.0-123 5.00 20
Bromobenzene 5.00 4.61 4.75 92.2 95.0 73.0-121 2.99 20
Bromodichloromethane 5.00 4.94 5.14 98.8 103 75.0-120 3.97 20
Bromoform 5.00 5.02 4.46 100 89.2 68.0-132 11.8 20
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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QUALITY CONTROL SUMMARYWG1916810
Volatile Organic Compounds (GC/MS) by Method 6200B-2011 L1526871-01,02,03
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R3830700-1 08/25/22 20:37 • (LCSD) R3830700-2 08/25/22 20:58
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 2.78 2.75 55.6 55.0 10.0-160 1.08 25
n-Butylbenzene 5.00 4.25 4.30 85.0 86.0 73.0-125 1.17 20
sec-Butylbenzene 5.00 4.56 4.69 91.2 93.8 75.0-125 2.81 20
tert-Butylbenzene 5.00 4.70 4.68 94.0 93.6 76.0-124 0.426 20
Carbon tetrachloride 5.00 4.94 4.90 98.8 98.0 68.0-126 0.813 20
Chlorobenzene 5.00 5.25 5.01 105 100 80.0-121 4.68 20
Chlorodibromomethane 5.00 4.52 4.52 90.4 90.4 77.0-125 0.000 20
Chloroethane 5.00 5.04 5.23 101 105 47.0-150 3.70 20
Chloroform 5.00 5.08 5.15 102 103 73.0-120 1.37 20
Chloromethane 5.00 3.14 3.35 62.8 67.0 41.0-142 6.47 20
2-Chlorotoluene 5.00 5.08 5.09 102 102 76.0-123 0.197 20
4-Chlorotoluene 5.00 4.67 4.68 93.4 93.6 75.0-122 0.214 20
1,2-Dibromo-3-Chloropropane 5.00 3.55 3.74 71.0 74.8 58.0-134 5.21 20
1,2-Dibromoethane 5.00 5.15 4.73 103 94.6 80.0-122 8.50 20
Dibromomethane 5.00 5.12 5.15 102 103 80.0-120 0.584 20
1,2-Dichlorobenzene 5.00 4.78 4.66 95.6 93.2 79.0-121 2.54 20
1,3-Dichlorobenzene 5.00 4.79 4.83 95.8 96.6 79.0-120 0.832 20
1,4-Dichlorobenzene 5.00 4.66 4.54 93.2 90.8 79.0-120 2.61 20
Dichlorodifluoromethane 5.00 4.18 4.41 83.6 88.2 51.0-149 5.36 20
1,1-Dichloroethane 5.00 5.19 5.30 104 106 70.0-126 2.10 20
1,2-Dichloroethane 5.00 5.15 4.90 103 98.0 70.0-128 4.98 20
1,1-Dichloroethene 5.00 5.08 4.93 102 98.6 71.0-124 3.00 20
cis-1,2-Dichloroethene 5.00 5.40 4.98 108 99.6 73.0-120 8.09 20
trans-1,2-Dichloroethene 5.00 5.20 5.25 104 105 73.0-120 0.957 20
1,2-Dichloropropane 5.00 5.24 4.94 105 98.8 77.0-125 5.89 20
1,1-Dichloropropene 5.00 4.83 4.98 96.6 99.6 74.0-126 3.06 20
1,3-Dichloropropane 5.00 4.94 4.74 98.8 94.8 80.0-120 4.13 20
2,2-Dichloropropane 5.00 4.23 4.29 84.6 85.8 58.0-130 1.41 20
Di-isopropyl ether 5.00 5.20 5.19 104 104 58.0-138 0.192 20
Ethylbenzene 5.00 4.81 4.83 96.2 96.6 79.0-123 0.415 20
Hexachloro-1,3-butadiene 5.00 4.09 4.85 81.8 97.0 54.0-138 17.0 20
Isopropylbenzene 5.00 4.84 4.77 96.8 95.4 76.0-127 1.46 20
p-Isopropyltoluene 5.00 4.57 4.70 91.4 94.0 76.0-125 2.80 20
2-Butanone (MEK)25.0 24.7 25.6 98.8 102 44.0-160 3.58 20
Methylene Chloride 5.00 5.33 5.35 107 107 67.0-120 0.375 20
4-Methyl-2-pentanone (MIBK)25.0 24.6 23.4 98.4 93.6 68.0-142 5.00 20
Methyl tert-butyl ether 5.00 5.20 4.94 104 98.8 68.0-125 5.13 20
Naphthalene 5.00 4.13 4.08 82.6 81.6 54.0-135 1.22 20
n-Propylbenzene 5.00 4.57 4.58 91.4 91.6 77.0-124 0.219 20
Styrene 5.00 4.67 4.59 93.4 91.8 73.0-130 1.73 20
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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QUALITY CONTROL SUMMARYWG1916810
Volatile Organic Compounds (GC/MS) by Method 6200B-2011 L1526871-01,02,03
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R3830700-1 08/25/22 20:37 • (LCSD) R3830700-2 08/25/22 20:58
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 4.72 4.89 94.4 97.8 75.0-125 3.54 20
1,1,2,2-Tetrachloroethane 5.00 4.47 4.27 89.4 85.4 65.0-130 4.58 20
Tetrachloroethene 5.00 4.80 4.62 96.0 92.4 72.0-132 3.82 20
Toluene 5.00 4.92 4.79 98.4 95.8 79.0-120 2.68 20
1,2,3-Trichlorobenzene 5.00 4.70 4.82 94.0 96.4 50.0-138 2.52 20
1,2,4-Trichlorobenzene 5.00 4.52 4.78 90.4 95.6 57.0-137 5.59 20
1,1,1-Trichloroethane 5.00 5.05 4.90 101 98.0 73.0-124 3.02 20
1,1,2-Trichloroethane 5.00 5.12 4.95 102 99.0 80.0-120 3.38 20
Trichloroethene 5.00 5.27 5.33 105 107 78.0-124 1.13 20
Trichlorofluoromethane 5.00 4.84 5.08 96.8 102 59.0-147 4.84 20
1,2,3-Trichloropropane 5.00 5.06 5.03 101 101 73.0-130 0.595 20
1,2,4-Trimethylbenzene 5.00 4.65 4.78 93.0 95.6 76.0-121 2.76 20
1,3,5-Trimethylbenzene 5.00 4.72 4.75 94.4 95.0 76.0-122 0.634 20
Vinyl chloride 5.00 4.70 4.62 94.0 92.4 67.0-131 1.72 20
o-Xylene 5.00 4.83 4.91 96.6 98.2 80.0-122 1.64 20
m&p-Xylenes 10.0 10.0 9.67 100 96.7 80.0-122 3.36 20
(S) Toluene-d8 105 105 80.0-120
(S) 4-Bromofluorobenzene 108 107 77.0-126
(S) 1,2-Dichloroethane-d4 113 107 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
C4 The reported concentration is an estimate. The continuing calibration standard associated with this data responded low.
Data is likely to show a low bias concerning the result.
J The identification of the analyte is acceptable; the reported value is an estimate.
J4 The associated batch QC was outside the established quality control range for accuracy.
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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.
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