RA-1411_9037_CA_MRP_20230817_FINAL

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

August 17, 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
Friendly Food Mart
1002 North Church Street
Rocky Mount, Nash County, North Carolina 27804
NCDEQ Incident No. 9037
ATC Project No.: STL0903701

Dear Mr. Chapman:

ATC Associates of North Carolina, P.C. (ATC) is submitting the enclosed Groundwater Monitoring Report for
the Friendly Food Mart site. The report presents the repair of two groundwater monitoring wells, and
investigative procedures, field activities, and laboratory analytical results for a groundwater sampling event
conducted in May 2023.

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

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

Corinne Lally Gabriel Araos, P.E.
Project Scientist Senior Project 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

GROUNDWATER MONITORING REPORT
FRIENDLY FOOD MART
INCIDENT #9037
1002 NORTH CHURCH STREET
ROCKY MOUNT, NASH COUNTY, NORTH CAROLINA

ATC Project No. STL0903701

Prepared by:

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

Corinne Lally
Project Geologist
Direct Line: [phone]
Email: [e-mail]

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

August 17, 2023

Friendly Food Mart
August 17, 2023
Page i

ATC Project No. STL0903701 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.................................................................................................................... 4
4.0 GROUNDWATER ASSESSMENT ACTIVITIES .................................................................................. 4
4.1 MONITORING WELL REPAIR ................................................................................................................................ 4
4.1 GROUNDWATER LEVELS...................................................................................................................................... 4
4.2 GROUNDWATER QUALITY ................................................................................................................................... 4
5.0 CONCLUSIONS AND RECOMMENDATIONS .................................................................................... 5
6.0 LIMITATIONS .......................................................................................................................................... 5

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

FIGURES:
Figure 1 – Site Topographic Map
Figure 2 – Site Map
Figure 3 – Potential Receptor Map
Figure 4 – Groundwater Elevation Contour Map
Figure 5 – Contaminants of Concern in Groundwater Map

APPENDICES:
Appendix A – Conceptual Site Model
Appendix B – Field Notes
Appendix C – Photo Log
Appendix D – Laboratory Analytical Results
Friendly Food Mart
August 17, 2023
Page 2 of 7

ATC Project No. STL0903701 NCDEQ State Lead Program
2.0 EXECUTIVE SUMMARY

ATC Associates of North Carolina, P.C. (ATC) has completed a Groundwater Monitoring Report for the
former Friendly Food Mart site. This report documents the well repair and groundwater sampling activities
conducted at the site in May 2023. The activities were performed based on the April 10, 2023, Task
Authorization (TA-01) 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 Friendly Food Mart site is located at 1002 North Church Street, Nash County, North Carolina. The site
is developed with one single-story brick building and is currently vacant. The UST system consisted of one
4,000-gallon gasoline UST, one 2,000-gallon gasoline UST, and one 1,000-gallon gasoline UST. Ten
monitoring wells (MW-1 through MW-10) are located at the site. Well MW-10 was not located during this
event. ATC completed an updated receptor survey that identified one inactive water supply well (WSW-1)
located 1,120 feet from the site in January of 2023.

On May 4, 2023, MW-1 and MW-7 were repaired and redeveloped by SAEDACCO. Approximately 30
gallons of water was purged from MW-1, and approximately 10 gallons of water was purged from MW-7.
Total well depths were measured after redevelopment activities. Based on the measured depths, it was
determined the repair activities were successful.

On May 12, 2023, ATC personnel mobilized to the site to collect groundwater samples from MW-1, through
MW-9. Light non-aqueous phase liquid (LNAPL) was not detected in the groundwater monitoring wells.
Several volatile organic compounds (VOCs) were detected above the 15A NCAC 2L .0202 Groundwater
Quality Standards (2L Standards) but none exceeded the gross contaminant levels (GCLs). The presence
of 1,1,2,2-tetrachloroethane, and 1,1,2-trichloroethane in MW-7 only may be attributed to an off-site
chlorinated solvent source and not associated with the UST release. None of the groundwater constituents
exceeded the GCLs.

Based on the sampling results and the Conceptual Site Model (Appendix A), the site classification is
confirmed as Low Risk and site closure activities should begin. A Notice of Residual Petroleum for
groundwater use restrictions should also be completed.

3.0 SITE DESCRIPTION

3.1 SITE CHARACTERIZATION

The former Friendly Food Mart site is located at 1002 North Church Street, Rocky Mount, Nash County,
North Carolina. The property is currently unoccupied with the former service station building and canopy
present. The former UST system consisted of one 4,000-gallon gasoline UST, one 2,000-gallon gasoline
UST, and one 1,000-gallon gasoline UST. Ten (10) monitoring wells (MW-1, MW-2, MW-3, MW-4, MW-5,
MW-6, MW-7, MW-8, MW-9, and MW-10) are associated with the site. Well MW-10 was not located during
this groundwater sampling event, and has not been sampled since September 1994. Properties surrounding
the site are used for commercial purposes. A site topographic map is included as Figure 1. A site map
depicting monitoring well locations and other pertinent site features is included as Figure 2. The Conceptual
Site Model is included as Appendix A.

3.2 SITE BACKGROUND

Based on historical information, the former UST system consisted of one 4,000-gallon gasoline UST, one
2,000-gallon gasoline UST, and one 1,000-gallon gasoline UST. The USTs were installed in 1975 and the
site operated as a gasoline service station (Friendly Food Mart). On June 29, 1992, Front Royal
Environmental Services, Inc. (Front Royal) supervised the removal of the 2,000-gallon and 1,000-gallon
gasoline USTs from the site. Four soil samples were collected from the bottom of the excavation pit and
one sample was collected from the excavation stockpile. Laboratory results indicated Total Petroleum
Friendly Food Mart
August 17, 2023
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ATC Project No. STL0903701 NCDEQ State Lead Program
Hydrocarbon (TPH) concentrations less than 5.5 parts per million (ppm) in all samples. During the tank
closure, light non-aqueous phase liquid (LNAPL) was found in the ditch to the west of the site, but it was
not found in the tank pit. Approximately 35 cubic yards of impacted soils were removed from the UST tank
pit. The UST Closure report was submitted to NCDEQ on September 2, 1992.

In July 1992, Russnow, Kane, & Andrews, Inc., began soil and groundwater assessment activities as part
of a Comprehensive Site Assessment (CSA) for the site. The CSA documented the installation of a
monitoring well network (MW-1 through MW-6), soil boring advancement, slug testing, and groundwater
and soil sampling. LNAPL was detected in MW-1 and the analytical results indicated that a suspected
petroleum release occurred from the UST system. The release was reported to NCDEQ on September 3,
1992. The CSA report was submitted in October 1992 and a Notice of Violation was issued by NCDEQ on
October 13, 1992.

On July 19, 1994, Front Royal supervised the removal of the 4,000-gallon gasoline UST from the site. Three
soil samples were collected from the bottom of the tank pit. One of the soil samples (SS-3b) reported 5,200
ppm of TPH.

In July and September 1994, Front Royal installed four additional monitoring wells (MW-7 through MW-10)
at the site. Groundwater samples were collected from the entire groundwater network. LNAPL was not
detected in MW-1. The gross contaminant levels (GCLs) were exceeded for benzene in MW-1 and MW-7.
The analytical results indicated the presence of impacted groundwater above the NCDEQ 2L Standards in
MW-1, MW-3, MW-7, MW-9, and MW-10. The results of the additional groundwater assessment were
documented in a CSA Addendum submitted on May 29, 1996.

On May 7, 1996, Front Royal submitted a Corrective Action Plan (CAP) for the site. The CAP recommended
the installation of an in-situ air sparge with soil vapor extraction system as the most viable remedial option
for the remediation of contaminated soil and groundwater at the site.

In July 2022, the current property owner (Akram Mojali) signed NCDEQ State-Lead Acceptance letter.

On January 19, 2023, ATC submitted a report detailing an updated receptor survey, groundwater sampling,
and soil sampling conducted at the site on September 27, 2022. Based on ATC’s findings, there is only one
inactive water supply well (WSW-1) located 1,120 feet from the site. The details of the well are provided on
Table 1, and a potential receptor map is included as Figure 3. One soil boring (SB-1) was installed via
hand auger and direct-push technology for risk-based soil sampling. Soil samples were collected from SB-
1 at 11 to 12 ft bgs and 15-16 ft bgs, for analysis by EPA Method 8260D and for MADEP VPH. According
to the analytical results, naphthalene and C9-C22 aromatics were detected above the NCDEQ Soil-to-
Groundwater MSCCs in the soil sample collected from 15 to 16 feet bgs. No other compounds were
detected above the Soil-to-Groundwater MSCCs and none of the analytical results exceeded the
Residential MSCCs. ATC attempted to collect groundwater samples from MW-1, through MW-10.
Monitoring wells MW-1 and MW-7 could not be sampled due to sediment in the well at approximately 18 ft
btoc and 13 ft btoc. Monitoring well MW-6 could not be sampled due to bentonite in the well at 1.5 ft btoc.
Monitoring well MW-10 could not be located. None of the analytical results indicated VOCs above the 2L
Standards or the GCLs. Lead was detected above the 2L standards in MW-2, MW-3, MW-4, MW-5, MW-8,
and MW-9. The elevated concentrations of lead may be due to excess sediment encountered in the water
column after purging. ATC recommended the re-development of MW-1 and MW-7 to confirm the site
groundwater characteristics for site closure.

3.3 SITE AND REGIONAL GEOLOGY

The site is located at the transition zone between the Eastern Slate Belt of the Piedmont Physiographic
Region and the Yorktown Formation of the Coastal Plain Physiographic Region. The Eastern Slate Belt is
classified by foliated to massive granitic rock of the late Paleozoic era. The Yorktown Formation consists
fossiliferous with varying amounts of fine-grained sand and lenses of shell material of the Tertiary period.
Friendly Food Mart
August 17, 2023
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ATC Project No. STL0903701 NCDEQ State Lead Program
According to the United States Department of Agriculture Web Soil Survey, the site is underlain by Norfolk-
Urban soils that consists of loamy sand to 14 inches below ground surface (bgs) to sandy clay loam up to
100 inches bgs. Lithology encountered at the site during previous assessment activities indicated silty sand,
sandy clay, and sand to approximately 30 feet below ground surface (bgs).

3.4 SITE AND REGIONAL HYDROGEOLOGY

This site is located at the transition zone between the Piedmont and the Coastal Plain. Groundwater at the
site averages 18.97 feet bgs. Based on topography, groundwater flows to the west. Based on the May 2023
groundwater elevation data, groundwater flows to the east-northeast.

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 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 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.
The Coastal Plain consists of a surficial aquifer and local or regional aquifers occurring in permeable layers
confined between less permeable layers, or confining units. These regional aquifers are recharged in areas
where they interact with the surficial aquifer, particularly near their westward limits, or in cases where the
confining units are considered “leaky.”

4.0 GROUNDWATER ASSESSMENT ACTIVITIES

4.1 MONITORING WELL REPAIR

Since MW-1 and MW-7 had historical GCL exceedances and were unable to be sampled due to sediment
accumulation, ATC proposed the installation of replacement wells. On May 4, 2023, ATC contracted with
South Atlantic Environmental Drilling and Construction Company Inc. (SAEDACCO) to replace MW-1 and
MW-7. During the drilling activities, the onsite drilling crew and ATC personnel determined it was possible
to clear the silt/clay using a tremie pipe, and a peristaltic pump. Both wells were redeveloped, with
approximately 30 gallons of water purged from MW-1, and 10 gallons of water purged from MW-7.

4.1 GROUNDWATER LEVELS

On May 12, 2023, groundwater level measurements were collected from monitoring wells MW-1, MW-2,
MW-3, MW-4, MW-5, MW-7, MW-8, and MW-9. Monitoring well MW-6 could not be gauged due to bentonite
at approximately 1.5 ft btoc. Monitoring well construction details and groundwater elevation data are
summarized in Table 2. LNAPL was not observed in the gauged monitoring wells. Depth to groundwater
measurements ranged from 15.68 feet btoc in MW-5 to 20.22 feet btoc in MW-9. A groundwater elevation
contour map generated using the May 2023 groundwater elevation data is included as Figure 4. This figure
indicates that the direction of groundwater flow at the site is to the east-northeast. Field notes from the
sampling event are included in Appendix B. Photographs of the monitoring well locations are included in
Appendix C.

4.2 GROUNDWATER QUALITY

On May 12, 2023, samples were collected from monitoring wells MW-1, MW-2, MW-3, MW-4, MW-5, MW-
7, MW-8, and MW-9. Monitoring well MW-6 could not be sampled due to bentonite at approximately 1.5 ft
btoc. At least three standing well volumes were purged from the monitoring wells, or purged until dry and
allowed to recharge, prior to groundwater sample collection to ensure a representative sample was
collected. After purging and prior to collecting groundwater samples, water quality parameters were
Friendly Food Mart
August 17, 2023
Page 5 of 7

ATC Project No. STL0903701 NCDEQ State Lead Program
measured. Samples were collected in laboratory-approved containers, packed in ice and delivered under
chain of custody protocol to Pace in Mount Juliet, Tennessee for analyses. Groundwater samples were
analyzed for VOCs by Environmental Protection Agency (EPA) Method 6200B.

The analytical results were compared to the 2L Standards and GCLs. Several VOCs were detected above
the 2L Standards in MW-1 and MW-7. Benzene, toluene, ethylbenzene, xylenes, MTBE, naphthalene,
isopropylbenzene, n-propylbenzene, 1,2,3-trimethylbenzene, and 1,3,5-trimethybenzene exceeded 2L
Standards in MW-1. Benzene, naphthalene, n-propylbenzene, 1,1,2,2-tetrachloroethane, and 1,1,2-
trichloroethane exceeded 2L Standards in MW-7. The presence of 1,1,2,2-tetrachloroethane, and 1,1,2-
trichloroethane in MW-7 only may be attributed to an off-site chlorinated solvent source and not associated
with the UST release. None of the groundwater constituents exceeded the GCLs.

Monitoring well analytical results are included in Table 3. Historical monitoring well analytical results are
included in Table 4. Measured field parameters are summarized in Table 5. Additional contaminants of
concern map depicting concentrations exceeding the 2L Standards is included as Figure 5. The laboratory
analytical report and chain-of-custody forms are included in Appendix D.

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 D 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 May 2023 monitoring well repair and groundwater sampling activities at the Friendly Food
Mart site located at 1002 North Church Street in Rocky Mount, Nash County, North Carolina.

On May 4, 2023, SAEDACCO field personnel cleared and redeveloped MW-1 and MW-7. Based on the
total depth of the wells, onsite staff determined the wells were still viable for sampling.

On May 12, 2023, ATC personnel mobilized to the site to collect groundwater samples from MW-1, through
MW-9. Monitoring well MW-6 could not be sampled due to bentonite in the well at 1.5 ft btoc. Monitoring
well MW-10 could not be located. LNAPL was not observed in the gauged monitoring wells. Several VOCs
were detected above the 2L Standards in MW-1 and MW-7. Benzene, toluene, ethylbenzene, xylenes,
MTBE, naphthalene, isopropylbenzene, n-propylbenzene, 1,2,3-trimethylbenzene, and 1,3,5-
trimethybenzene exceeded 2L Standards in MW-1. Benzene, naphthalene, n-propylbenzene, and 1,1,2,2-
tetrachloroethane exceeded 2L Standards in MW-7. The presence of 1,1,2,2-tetrachloroethane, and 1,1,2-
trichloroethane in MW-7 only may be attributed to an off-site chlorinated solvent source and not associated
with the UST release. None of the groundwater constituents exceeded the GCLs.

Based on the sampling results, the site classification is confirmed as Low Risk and site closure activities
should begin. A Notice of Residual Petroleum for groundwater use restrictions should also be completed.

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.
Friendly Food Mart

ATC Project No. STL0903701 NCDEQ State Lead Program

TABLES

TABLE 1
WATER SUPPLY WELL INFORMATION

FRIENDLY FOOD MART
1002 NORTH CHURCH STREET
ROCKY MOUNT, NASH COUNTY, NORTH CAROLINA
INCIDENT #9037
Water Supply Well
ID Property Owner(s)Property Owner Phone
Number Property Address Distance from Source (feet)
and Direction Connected to Municipal Water Usage
WSW-1 City of Rocky Mount [phone] 377 Morgan St, Rocky Mount NC 1,150 ft NW Yes Inactive
Page 1 of 1
TABLE 2
MONITORING WELL CONSTRUCTION AND GROUNDWATER ELEVATION DATA
FRIENDLY FOOD MART
1002 NORTH CHURCH STREET
ROCKY MOUNT, NASH COUNTY, NORTH CAROLINA
INCIDENT #9037
Well ID Date
Installed
Well Diameter
(inches)
Screened
Interval
(feet)
Total Depth
(feet)
Top of Casing
Elevation
(feet)
Date
Measured
Depth to
Groundwater
(feet btoc)
Depth to
LNAPL
(feet btoc)
LNAPL
Thickness
(feet)
Groundwater
Elevation
(feet)
10/1/1992
9/9/1994 19.30 ----74.65
9/27/2022
5/23/2023 17.97 ----75.98
10/1/1992 16.46 76.98
9/9/1994 17.67 ----75.77
9/27/2022 17.79 ----75.65
5/12/2023 16.76 ----76.68
10/1/1992 18.94 75.07
9/9/1994 18.70 ----75.31
9/27/2022 18.83 ----75.18
5/12/2023 17.94 ----76.07
10/1/1992 18.63 75.07
9/9/1994 18.31 ----75.39
9/27/2022 19.06 ----74.64
5/12/2023 18.17 ----75.53
10/1/1992 14.52 79.46
9/9/1994 16.00 ----77.98
9/27/2022 17.56 ----76.42
5/12/2023 15.68 ----78.30
10/1/1992 19.01 75.31
9/9/1994 19.77 ----74.55
9/27/2022
9/9/1994 19.53 ----74.65
9/27/2022
5/12/2023 18.00 ----76.18
9/9/1994 17.90 ----75.68
9/27/2022 18.14 ----75.44
5/12/2023 17.14 ----76.44
9/9/1994 21.55 ----73.93
9/27/2022 21.37 ----74.11
5/12/2023 20.22 ----75.26
9/9/1994 22.00 ----71.31
9/27/2022
Notes:
1. NS = Not Surveyed.
2. NM = Not Measured.
3. LNAPL = Light Non-Aqueous Phase Liquid.
4. btoc = below top of casing.
5. -- = Not Detected.
6. Well surveyed from an assumed datum of 100 feet.
Filled with bentonite at 1.5 ft btoc. Not recorded.
MW-6 8/3/1992 2 17 - 26 27 94.32
Filled with sediment at 18 ft btoc. Not recorded.
LNAPL - Depth not recorded.
MW-1 7/13/1992
MW-3 7/14/1992 2 14 - 26
2 18.5 - 24.5 24.5 93.95
MW-2 7/14/1992 2 15.5 - 24.5
Filled with sediment at 13 ft btoc. Not recorded.
93.31
Could not locate.
MW-10 9/8/1994 2 18 - 28 28
MW-8 9/8/1994 2 12 - 26 26 93.58
95.48MW-9
25.5 93.44
26 94.01
MW-4 7/24/1992 2 17.5 - 27.5 27.5 93.70
93.98
MW-7 7/19/1994 2 18 - 23.5 23.5 94.18
MW-5 7/24/1992 2
9/8/1994 2 18 - 26 26
14 - 23.5 23.5
Page 1 of 1
TABLE 3
GROUNDWATER ANALYTICAL DATA
FRIENDLY FOOD MART
1002 NORTH CHURCH STREET
ROCKY MOUNT, NASH COUNTY, NORTH CAROLINA
INCIDENT #9037
EPA
6010D
Well ID Date Sampled
BenzeneTolueneEthylbenzeneTotal XylenesMTBENaphthaleneAcetonesec-Butylbenzenetert-Butylbenzenecis-1,2-DichloroetheneDi-isopropyl etherIsopropylbenzenep-Isopropylbenzene2-Butone (MEK)Methylene Chloriden-Propylbenzene1,1,2,2-Tetrachloroethane1,1,2-Trichloroethane1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneLeadC5-C8 AliphaticsC9-C18 AliphaticsC9-C22 AromaticsMW-1 5/12/2023 1,750 4,690 2,760 7,980 1960 816J <10,000 <200 <200 <200 <200 211 <2,000 <2,000 <1,000 672 <200 <200 6210 1410 NA NA NA NA
MW-2 5/12/2023 <1.00 <1.00 <1.00 <2.00 <1.00 <5.00 <50.0 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <10.0 <5.00 <1.00 <1.00 <1.00 <1.00 <1.00 NA NA NA NA
MW-3 5/12/2023 <1.00 <1.00 <1.00 <2.00 <1.00 <5.00 28.5J <1.00 <1.00 0.521J <1.00 <1.00 <1.00 <10.0 <5.00 <1.00 <1.00 <1.00 <1.00 <1.00 NA NA NA NA
MW-4 5/12/2023 <1.00 <1.00 <1.00 <2.00 0.944J <5.00 <50.0 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <10.0 <5.00 <1.00 <1.00 <1.00 <1.00 <1.00 NA NA NA NA
MW-5 5/12/2023 <1.00 <1.00 <1.00 <2.00 0.201J <5.00 <50.0 <1.00 <1.00 <1.00 0.233J <1.00 <1.00 <10.0 <5.00 <1.00 <1.00 <1.00 <1.00 <1.00 NA NA NA NA
MW-7 5/12/2023 91.7 9.86 112 38.5 1.33 31.1 <50.0 13.5 <1.00 <1.00 0.573J 58.5 1.08 <10.0 <5.00 191 2.37 1.61 179 10.1 NA NA NA NA
MW-8 5/12/2023 <1.00 <1.00 <1.00 <2.00 <1.00 <5.00 <50.0 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <10.0 <5.00 <1.00 <1.00 <1.00 <1.00 <1.00 NA NA NA NA
MW-9 5/12/2023 <1.00 <1.00 <1.00 <2.00 0.321J <5.00 <50.0 0.158J 0.254J <1.00 0.150J <1.00 <1.00 <10.0 <5.00 <1.00 <1.00 <1.00 <1.00 <1.00 NA NA NA NA
1 600 600 500 20 6 6,000 70 70 70 70 70 25 4,000 4,000 70 0.2 0.6 400 400 15 400 700 200
5,000 260,000 80,000 50,000 20,000 6,000 6,000,000 8,800 14,750 70,000 70,000 30,500 11,700 4,000,000 4,000,000 26,100 200 600 28,500 24,100 15,000 NE NE NE
Notes:
1. "<" or ND = Not detected at or above the laboratory reporting or detection limit.
2. Concentrations reported in micrograms per liter (µg/L) = parts per billion (ppb).
3. Concentrations in BOLD equal or exceed the corresponding 15A NCAC 02L .0202 Groundwater Quality Standards (2L Standard) - April 2022.
4. Concentrations in italics equal or exceed the corresponding NCDEQ Gross Contamination Level (GCL) - April 2022.
6. J = Estimated concentration; constituent was postively identified at a concentration above the laboratory detection limit but below the laboratory reporting limit.
6. NE = Not Established.
7. C9-C18 Aliphatics = C9-C12 Aliphatics + C9-C18 Aliphatics.
8. C9-C22 Aromatics = C9-C10 Aromatics + C11-C22 Aromatics.
9. NA = Not Analyzed
MADEP VPH - CalculatedAnalytical Methods:
2L Standard
GCL
Standard Method 6200B
Page 1 of 1
TABLE 4
HISTORICAL GROUNDWATER ANALYTICAL RESULTS
FRIENDLY FOOD MART
1002 NORTH CHURCH STREET
ROCKY MOUNT, NASH COUNTY, NORTH CAROLINA
INCIDENT #9037
EPA Method
625 EPA 6010D
Well ID Date
Sampled
BenzeneTolueneEthylbenzeneTotal XylenesMTBENaphthaleneIsopropylbenzenen-Propylbenzene1,1,2,2-Tetrachloroethane1,1,2-Trichloroethane1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneLeadC5-C8 AliphaticsC9-C18 AliphaticsC9-C22 Aromatics9/10/1992 18,120 68,600 4,970 24,500 67,200 NR NR NR NR NR NR NR NR NR NR NR NR
7/28/1994 10,400 50,400 1,210 7,820 25,400 NR NR NR NR NR NR NR NR NR NR NR NR
9/27/2022
5/12/2023 1,750 4,690 2,760 7,980 1960 816 J 211 672 <200 <200 6210 1410 NA NA NA NA NA
7/28/1992 BDL BDL BDL BDL BDL NR NR NR NR NR NR NR NR NR NR NR NR
7/28/1994 BDL BDL BDL BDL BDL NR NR NR NR NR NR NR NR NR NR NR NR
9/27/2022 <1.0 <1.0 <1.0 <2.0 <1.0 <5.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 NR 858 37.2 J 63.4 J <100
5/12/2023 <1.00 <1.00 <1.00 <2.00 <1.00 <5.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 NA NA NA NA NA
7/28/1992 BDL BDL BDL BDL BDL NR NR NR NR NR NR NR NR NR NR NR NR
7/28/1994 44.9 33.6 2.86 6.93 BDL NR NR NR NR NR NR NR NR NR NR NR NR
9/27/2022 <1.0 <1.0 <1.0 <2.0 <1.0 <5.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 NR 150 <100 <100 <100
5/12/2023 <1.00 <1.00 <1.00 <2.00 <1.00 <5.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 NA NA NA NA NA
7/28/1992 1.4 BDL BDL BDL 19 NR NR NR NR NR NR NR NR NR NR NR NR
7/28/1994 BDL BDL BDL BDL BDL NR NR NR NR NR NR NR NR NR NR NR NR
9/27/2022 <1.0 <1.0 <1.0 <2.0 1.24 <5.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 NR 104 <100 <100 <100
5/12/2023 <1.00 <1.00 <1.00 <2.00 0.944 J <5.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 NA NA NA NA NA
7/28/1992 BDL BDL BDL BDL BDL NR NR NR NR NR NR NR NR NR NR NR NR
7/28/1994 BDL BDL BDL BDL 14.0 NR NR NR NR NR NR NR NR NR NR NR NR
9/27/2022 <1.0 <1.0 <1.0 <2.0 0.121 J <5.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 NR 1,190 <100 <100 <100
5/12/2023 <1.00 <1.00 <1.00 <2.00 0.201 J <5.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 NA NA NA NA NA
8/3/1992 180 BDL 250 190 33 NR NR NR NR NR NR 31 NR NR NR NR
9/27/2022
7/28/1994 21,900 179,000 3,490 19,800 38,600 NR NR NR NR NR NR NR NR NR NR NR NR
9/27/2022
5/12/2023 91.7 9.86 112 38.5 1.33 31.1 58.5 191 2.37 1.61 179 10.1 NA NA NA NA NA
9/9/1994 115 BDL BDL 30.8 285 NR NR NR NR NR NR NR NR NR NR NR NR
9/15/1994 BDL BDL BDL BDL 145 NR NR NR NR NR NR NR NR NR NR NR NR
9/27/2022 <1.0 <1.0 <1.0 <2.0 <1.0 <5.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 NR 929 <10,000 <10,000 <10,000
5/12/2023 <1.00 <1.00 <1.00 <2.00 <1.00 <5.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 NA NA NA NA NA
9/9/1994 114 BDL BDL BDL 293 NR NR NR NR NR NR NR NR NR NR NR NR
9/15/1994 104 3.03 1.37 17.3 76.0 NR NR NR NR NR NR NR NR NR NR NR NR
10/24/1994 710 BDL 100 465 330 NR NR NR NR NR NR NR NR NR NR NR NR
9/27/2022 <1.0 <1.0 <1.0 <2.0 0.645 J <5.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 NR 27.2 90.2 J <100 <100
5/12/2023 <1.00 <1.00 <1.00 <2.00 0.312 J <5.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 NA NA NA NA NA
9/15/1994 3,340 98.0 36.6 202 BDL NR NR NR NR NR NR NR NR NR NR NR NR
9/27/2022
1 600 600 500 20 6 70 70 0.2 0.6 400 400 6 15 400 700 200
5,000 260,000 80,000 50,000 20,000 6,000 30,500 26,100 200 600 28,500 24,100 6,000 15,000 NE NE NE
Notes:
1. "<" or ND = Not detected at or above the laboratory reporting or detection limit.
2. Concentrations reported in micrograms per liter (µg/L) = parts per billion (ppb).
3. Concentrations in bold equal or exceed the corresponding 15A NCAC 02L .0202 Groundwater Quality Standards (2L Standard) - April 2022.
4. Concentrations in italics equal or exceed the corresponding NCDEQ Gross Contamination Level (GCL) - April 2022.
5. J = Estimated concentration; constituent was postively identified at a concentration above the laboratory detection limit but below the laboratory reporting limit.
6. NE = Not Established.
7. C9-C18 Aliphatics = C9-C12 Aliphatics + C9-C18 Aliphatics.
8. C9-C22 Aromatics = C9-C10 Aromatics + C11-C22 Aromatics.
9. BDL = Below Detection Limit.
10. NR = Not reported.
11. NA = Not analyzed.
2L Standard
GCL
MW-2
MW-3
MW-4
MW-5
MW-7
MW-8
MW-9
MADEP VPH - Calculated
MW-10 Could not locate
Filled with sediment - Not Sampled
Filled with sediment - Not Sampled
Filled with bentonite - Not SampledMW-6
Analytical Methods:
MW-1
Standard Method 6200B
Page 1 of 1
TABLE 5
FIELD PARAMETERS
FRIENDLY FOOD MART
1002 NORTH CHURCH STREET
ROCKY MOUNT, NASH COUNTY, NORTH CAROLINA
INCIDENT #9037
9/27/2022
5/12/2023
9/27/2022 19.9 0.81 544 6.81 -93.9
5/12/2023 20.10 1.25 446 9.68 -63.7
9/27/2022 21.6 2.86 557 6.69 -21.0
5/12/2023 20.46 1.38 308 8.52 -45.3
9/27/2022 20.2 1.73 512 6.23 -6.0
5/12/2023 20.84 1.54 544 8.92 -21.6
9/27/2022 21.8 0.82 614 6.60 10.2
5/12/2023 21.29 2.37 613 7.96 27.6
MW-6 9/27/2022
9/27/2022
5/12/2023
9/27/2022 21.8 1.40 353.1 5.82 52.9
5/12/2023 20.36 2.06 437 8.11 -47.2
9/27/2022 22.7 2.04 517 6.78 -90.1
5/12/2023 21.47 1.42 510 8.31 -62.4
MW-10 9/27/2022
Notes:
1. °C = degrees celsius.
2. mg/L = milligrams per liter.
3. µS/cm = microsiemens per centimeter.
4. s.u. = standard units.
5. mV = millivolts.
Filled with sediment - No ReadingsMW-7
MW-8
MW-9
Unable to Locate - No Readings
Petrol Odor and Sheen - No Readings
Petrol Odor and Sheen - No Readings ORP (mV)pH (s.u.)Well ID Date
Collected
Temperature (oC)Dissolved Oxygen (mg/L)Conductivity (µs/cm)Filled with sediment - No ReadingsMW-1
MW-2
MW-3
MW-4
MW-5
Fillled with bentonite - No Readings
Page 1 of 1
Friendly Food Mart

ATC Project No. STL0903701 NCDEQ State Lead Program

FIGURES

SITE TOPOGRAPHIC MAP
1"= 2,000'
1
Project Number:
Date:Scale:
Drawing File:
Figure:
App'd By:
Drn. By:
Ckd. By:
N
H:\2022\1 OTHER OFFICES\NORTH CAROLINA\NCDEQ-STATE LEAD\FRIENDLY FOOD MART\SLC0903701-VIC.DWG, FIG110/28/2022
SEE LOWER LEFT
FRIENDLY FOOD MART
1002 NORTH CHURCH STREET
ROCKY MOUNTY, NORTH CAROLINA
SLC0903701 DH
JR
JR
SITELEGEND:SITE PROPERTY LINENOTE: ALL LOCATIONS ARE APPROXIMATEPARCEL LINEMW-4MW-5MW-10MW-9MW-7MW-1MW-2MW-3MW-8MW-6NORT
H

C
H
U
R
C
H

S
T
R
E
E
TMELTON DRIVESCALE: 1" = 50'01030204050NMW-1MONITORING WELLWell IdentificationFORMERDISPENSERISLANDFORMERUSTsFigure:Drawing File:
Project Number:
Ckd. By:
Drn. By:
App'd By:
Ckd. Date:Scale:Date:H:\2022\1 OTHER OFFICES\NORTH CAROLINA\NCDEQ-STATE LEAD\FRIENDLY FOOD MART\SLC0903701-SITE.DWG, FIG2
SITE MAP10/28/2022SEE LOWER LEFTFRIENDLY FOOD MART
1002 NORTH CHURCH STREET
ROCKY MOUNT, NORTH CAROLINA
SLC0903701AS SHOWNDH
JR2NOTES:
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
SITE1,500 FT.RADIUSWSW-1300200100SCALE: 1" = 300'0NLEGEND:SITE PROPERTY LINENOTE: ALL LOCATIONS ARE APPROXIMATEPARCEL LINEWSW-1WATER SUPPLY WELL(INACTIVE)Well IdentificationSURFACE WATERFigure:Drawing File:
Project Number:
Ckd. By:
Drn. By:
App'd By:
Ckd. Date:Scale:Date:H:\2022\1 OTHER OFFICES\NORTH CAROLINA\NCDEQ-STATE LEAD\FRIENDLY FOOD MART\SLC0903701-WSW.DWG, FIG3
POTENTIAL RECEPTOR MAP10/28/2022SEE LOWER LEFTFRIENDLY FOOD MART
1002 NORTH CHURCH STREET
ROCKY MOUNT, NORTH CAROLINA
SLC0903701AS SHOWNDH
JR3NOTES:
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
SITELEGEND:SITE PROPERTY LINENOTE: ALL LOCATIONS ARE APPROXIMATEPARCEL LINEMW-4MW-5MW-10MW-9MW-7MW-1MW-2MW-3MW-8MW-6NORT
H

C
H
U
R
C
H

S
T
R
E
E
TMELTON DRIVESCALE: 1" = 50'01030204050N75.5GROUNDWATER ELEVATION CONTOUR(DASHED WHERE INFERRED) (ft)GROUNDWATER FLOW DIRECTIONMW-275.65MONITORING WELLWell IdentificationRelative Groundwater Elevation (ft)76.68FORMERDISPENSERISLANDFORMERUSTs76.0776.4475.53NINL75.26NR76.1875.9876
.
5
76.0
75.5
Figure: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\FRIENDLY FOOD MART\STL0903701-POT.DWG, FIG4
GROUNDWATER ELEVATION CONTOUR MAP06/19/2023SEE LOWER LEFTFRIENDLY FOOD MART
1002 NORTH CHURCH STREET
ROCKY MOUNT, NORTH CAROLINA
STL0903701AS SHOWNBM
JR4NOTES:
1.Features shown are not an authoritative location, nor are they presented
to a stated accuracy.
2.Groundwater elevations measured on 5/12/2023.
3.NI = Not Included.
4.NL = Not Located.
COORDINATE SYSTEM:
NAD 1983 NORTH CAROLINA STATE PLANE FIPS 3200, US SURVEY FEET
SITE LEGEND:SITE PROPERTY LINENOTE: ALL LOCATIONS ARE APPROXIMATEPARCEL LINEMW-4MW-5MW-10MW-9MW-7MW-1MW-2MW-3MW-8MW-6NORT
H

C
H
U
R
C
H

S
T
R
E
E
TMELTON DRIVESCALE: 1" = 50'01030204050NMW-1MONITORING WELLWell IdentificationFORMERDISPENSERISLANDFORMERUSTsNLFigure: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\FRIENDLY FOOD MART\STL0903701-GW.DWG, FIG5
CONTAMINANTS OF CONCERN
IN GROUNDWATER06/19/2023SEE LOWER LEFTFRIENDLY FOOD MART
1002 NORTH CHURCH STREET
ROCKY MOUNT, NORTH CAROLINA
STL0903701AS SHOWNBM
JR5NOTES:
1.Features shown are not an authoritative location, nor are they presentedto a stated accuracy.2.Concentration in BOLD
indicate exceedances to the 15A NCAC 02L
Standards.
3.NL = Not Located.
COORDINATE SYSTEM:
NAD 1983 NORTH CAROLINA STATE PLANE FIPS 3200, US SURVEY FEETDate Sampled5/12/2023Benzene91.7Naphthalene31.1n-Propylbenzene1911,1,2,2-Tetrachloroethane2.371,1,2-Trichloroethane1.61MW-7Date Sampled5/12/2023Benzene1,750Toluene4,690Ethylbenzene2,760Total Xylenes7,980MTBE1960Naphthalene816 JIsopropylbenzene211n-Propylbenzene6721,2,4-Trimethylbenzene62101,3,5-Trimethylbenzene1410MW-1
Friendly Food Mart

ATC Project No. STL0903701 NCDEQ State Lead Program

APPENDIX A

CONCEPTUAL SITE MODEL

Site Name: Friendly Food Mart Date:7/11/2023
Property Owner:Akram Mohamed Mojali Last Field Event Date:5/12/2023
Site Name: Friendly Food Mart Release Discovery Date:9/1/1992
NCDEQ UST Incident No.: 9037 Source of Release:Unknown
Facility ID No.: Unknown Estimated Volume of Release:Unknown
Risk Classification: L70E
Risk Rank: Low Gasoline (leaded)No
Site Address: 1002 North Church Street Gasoline (unleaded)Yes
Site City, ST ZIP:Rocky Mount, 27804 Gasoline (ethanol blend)No
Site County:Nash Diesel No
NCDEQ Regional Office:RRO Kerosene No
Active UST Facility:No Heating Oil (#2)No
USTs Present:No Heating Oil (>#2)No
Motor Oil No
Hydraulic Oil No
Major Soil Type:Sand to silty clay Used Oil No
Surface Cover over impacted soil:Concrete
Utilities within plume (Y/N/U):Unknown
>S-W MSCCs (Y/N/U):Yes
>Residential MSCCs (Y/N/U):No Site (Current):Vacant commercial
>Comm/Ind MSCCs (Y/N/U):No Site (Future):Unknown
North Adjacent:Vacant commercial
East Adjacent:Jack's Used Cars
Litho-Tectonic Zone Transition zone between the Piedmont
and Coastal Plains South Adjacent:ERIKS North America - Industrial Equipment
Supplier
Geologic Formation Eastern Slate Belt/Yorktown Formation West Adjacent:Briley's Transmission
Rock Type
The Eastern Slate Belt is classified by
foliated to massive granitic rock of the late
Paleozoic era. The Yorktown Formation
consists fossiliferous with varying amounts
of fine-grained sand and lenses of shell
material of the Tertiary period.
Depth to Bedrock (ft bgs)Unknown Municipal Water (Y/N/U):Yes
Active Potable Wells <1000 ft (#/U):0
Active Potable Wells <500 ft (#/U):0
Depth to water (ft-bgs)18.38 Impacted Wells (Y/N/U):No
Gradient (ft/ft):0.005 Any wells <250 ft (Y/N/U):No
Direction (N E S W combo):Northeast
Hydraulic Conductivity (ft/day):Unknown <500 ft (Y/N):No
Total Porosity (%):Unknown Type of Surface Water:N/A
Effective Porosity (%):Unknown Name of Nearest Stream:Tar River
Flow Rate (ft/year):Unknown Stream Classification:Class C
COCs >2L (Y/N/U):Yes Impacted Surface Water (Y/N/U):No
COCs >2L Extent Defined (Y/N):Yes
COCs >GCLs (Y/N/U):No
COCs >GCLs (Wells):No >LEL in Structures:Unknown
COCs >GCLs Extent Defined (Y/N):Yes Vapors in Buildings:Unknown
COCs >2B Standards by 10X (Y/N/U):No Slab-on-grade or Crawlspace:Slab-on-grade
LNAPL (Y/N/U):Previously in 1992 Dissolved VOCs <5 ft of Structures:No
LNAPL (Max Thickness ft):Not recorded LNAPL <15 ft of Structures:No
LNAPL (Wells):MW-1 in 1992 Basement <30 ft of Dissolved COCs:N/A
LNAPL Extent Defined (Y/N):Yes
LNAPL (<5 ft beneath buildings/U):No
Utilities within plume (Y/N/U):Unknown
Alternative Water Source:NA
NORP:Yes, groundwater only
Site Remediation:NA
Soil Excavation:NA
AFVR:NA
MMPE:NA
SVE/AS:NA
Other:
CONCEPTUAL SITE MODEL
Soil Information
Possible Path(s) to Closure
Site Information Release Information
Petroleum Type Released
Geologic Information
Groundwater Information
Comments:
Receptor Information
Water Supply
Vapor
Additional Support Documentation Available / Data Gaps:
Approach (general discussion):VOCs < GCLs
Surface Water
Land Use / Zoning
Groundwater concentrations below GCLs, site closure should begin with
groundwater use restrictions.
Page 1 of 1
Friendly Food Mart

ATC Project No. STL0903701 NCDEQ State Lead Program

APPENDIX B

FIELD NOTES

Friendly Food Mart

ATC Project No. STL0903701 NCDEQ State Lead Program

APPENDIX C

SITE PHOTOGRAPHS

Photo 1: Site building. Photo 2: Site building.
Site Photographs

Friendly Food Mart – Incident #9037

1002 North Church Street
Rocky Mount, Nash County, North Carolina

2725 E. Millbrook Road, Suite 121
Raleigh, North Carolina
Tel: [phone] Fax: [phone]
Photos Taken By: Laura de Sousa Site ID: Incident #13981 ATC Project No.: SLC0903701

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

Friendly Food Mart – Incident #9037

1002 North Church Street
Rocky Mount, Nash County, North Carolina

2725 E. Millbrook Road, Suite 121
Raleigh, North Carolina
Tel: [phone] Fax: [phone]
Photos Taken By: Laura de Sousa Site ID: Incident #13981 ATC Project No.: SLC0903701

Photo 5: Monitoring well MW-3. Photo 6: Monitoring well MW-4.
Site Photographs

Friendly Food Mart – Incident #9037

1002 North Church Street
Rocky Mount, Nash County, North Carolina

2725 E. Millbrook Road, Suite 121
Raleigh, North Carolina
Tel: [phone] Fax: [phone]
Photos Taken By: Laura de Sousa Site ID: Incident #13981 ATC Project No.: SLC0903701

Photo 7: Monitoring well MW-5. Photo 8: Monitoring well MW-7.
Site Photographs

Friendly Food Mart – Incident #9037

1002 North Church Street
Rocky Mount, Nash County, North Carolina

2725 E. Millbrook Road, Suite 121
Raleigh, North Carolina
Tel: [phone] Fax: [phone]
Photos Taken By: Laura de Sousa Site ID: Incident #13981 ATC Project No.: SLC0903701

Photo 9: Monitoring well MW-8. Photo 10: Monitoring well MW-9.
Site Photographs

Friendly Food Mart – Incident #9037

1002 North Church Street
Rocky Mount, Nash County, North Carolina

2725 E. Millbrook Road, Suite 121
Raleigh, North Carolina
Tel: [phone] Fax: [phone]
Photos Taken By: Laura de Sousa Site ID: Incident #13981 ATC Project No.: SLC0903701
Friendly Food Mart

ATC Project No. STL0903701 NCDEQ State Lead Program

APPENDIX D

LABORATORY ANALYTICAL RESULTS