RA-641_4028_CA_MRP_20180104

609A Piner Road, Suite 115
Wilmington, North Carolina 28409
Telephone [phone]
Fax [phone]
www.atcgroupservices.com

January 4, 2018

Ms. Brenda Hafshejani
North Carolina Department of Environmental Quality Raleigh Regional Office Division of Waste Management - UST Section 1628 Mail Service Center Raleigh, North Carolina 27699 Re: Groundwater Monitoring Report Pantry #3079
5102 Dortches Boulevard
Rocky Mount, Nash County, North Carolina
NCDEQ Incident No. 4028

Dear Ms. Hafshejani: ATC Associates of North Carolina, P.C. (ATC), on behalf of Circle K Stores, Inc. (formerly The Pantry, Inc.), is submitting this Groundwater Montioring Report to document the recent groundwater sampling event. If you have any questions or require additional information, please contact our office at [phone]. Sincerely, ATC Associates of North Carolina, P.C. Maureen Jackson, P.G. Senior Project Manager
cc: Mr. Brent Puzak, Circle K Stores, Inc.

Groundwater Monitoring Report

Pantry #3079
5102 Dortches Boulevard
Rocky Mount, Nash County, North Carolina
Risk Classification: High
NCDEQ Incident No. 4028

Groundwater Monitoring Report
Pantry #3079
5102 Dortches Boulevard
Rocky Mount, Nash County, North Carolina
Risk Classification: High
NCDEQ Incident No. 4028

Submitted to:

North Carolina Department of
Environmental Quality
Division of Waste Management
UST Section
Raleigh Regional Office
1628 Mail Service Center
Raleigh, North Carolina 27699-1628

Prepared by:
On Behalf Of:

Circle K Stores, Inc.
1100 Situs Court Suite 100
Raleigh, North Carolina 27606
Maureen Jackson, P.G. Phone: [phone]
Senior Project Manager
NC Professional Geologist #2312

Submitted by:

ATC Associates of North Carolina, P.C.
609A Piner Road, Suite 115
Wilmington, North Carolina 28409
Phone: [phone]
Fax: [phone]

January 4, 2018

TABLE OF CONTENTS
1.0 INTRODUCTION ....................................................................................................................1
2.0 SITE BACKGROUND ............................................................................................................1
3.0 BIOSOCK INSTALLATION AND MAINTENANCE .......................................................2
4.0 GROUNDWATER CHARACTERIZATION ......................................................................2
4.1 Groundwater Levels ........................................................................................................2
4.2 Free Product ....................................................................................................................3
4.3 Groundwater Quality .......................................................................................................3
5.0 SUMMARY ...............................................................................................................................4

TABLES

Table 1 UST System Information Table 2 Water Supply Well Information Table 3 Table 4 Table 5
Monitoring Well Construction Information Groundwater Elevation Information Groundwater Analytical Data Table 6 Historical Groundwater Analytical Data

FIGURES
Figure 1 Topographic Map Figure 2 Site Map Figure 3 Site Vicinity Map Figure 4 Groundwater Elevation Contour Map Figure 5 Figure 6 Dissolved Benzene Isoconcentration Contour Map Dissolved MTBE Isoconcentration Contour Map Figure 7 Other Contaminants of Concern

APPENDICES
Appendix A Laboratory Analytical Report and Chain-of-Custody Documents
Pantry #3079 – Groundwater Monitoring Report January 4, 2018
NCDEQ Incident No. 4028

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1.0 INTRODUCTION
ATC Associates of North Carolina, P.C. (ATC) was retained by Circle K Stores, Inc. (formerly The
Pantry) to perform groundwater sampling activities at the Pantry #3079 site located at 5102
Dortches Boulevard in Rocky Mount, North Carolina. The site location is shown on Figure 1 and
the site details are shown on Figure 2. This report presents a summary of the installation and
maintenance of Biosocks in select wells and the laboratory analytical results for the groundwater
sampling event conducted in December 2017.

2.0 SITE BACKGROUND
The Pantry #3079 (DBA Zip Mart #6) is a convenience and gasoline retail store located at 5102
Dortches Boulevard (Highway 43 at I-95) in Rocky Mount, Nash County, North Carolina. The site
is currently active and contains three 12,000-gallon gasoline underground storage tanks (USTs) and
one 8,000-gallon diesel UST. Table 1 provides a summary of the current and former UST
systems at the site.

In February 1989, four 12,000-gallon USTs were removed from the Zip Mart #6 facility. Analytical
results of the soil samples collected from the UST bed indicated elevated levels of total petroleum
hydrocarbons (TPH) in both the gasoline and diesel range. Between April 1989 and May 1990,
Applied Environmental Services, Inc. installed fifteen monitoring wells (MW-1 through MW-15).
On July 2, 1990, Applied Environmental Services, Inc. submitted a Groundwater Assessment –
Technical and Field Data Report and a Remedial Action Plan and Engineering Report.

In July 1998, after discovery of the suspected release, The Pantry, Inc. assumed store operations
from Stallings Oil Company, Inc. Subsequently, environmental services were transferred to SEI
Environmental, Inc. and SEI Engineering and Geological Services, P.C. (formerly SPATCO
Engineering and Geological Services, P.C.) (SEI).

During September and November 1999 and again in April 2002, a 1,500-foot receptor survey
was conducted which revealed the presence of two potable water supply wells. Public water is
supplied to the area. An intermittent stream is located approximately 1,500 feet west of the
subject property. Refer to Figure 3 for a site vicinity map. Information regarding properties
Pantry #3079 – Groundwater Monitoring Report January 4, 2018
NCDEQ Incident No. 4028

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with water supply wells is summarized in Table 2.

On December 10, 1999, SEI submitted a Pre-Corrective Action Plan (CAP) Groundwater
Monitoring Report. In February and March 2000, aggressive fluid vapor recovery (AFVR) was
conducted on monitoring well MW-1 and recovery well RW-1, which have historically contained
free product. The AFVR events were successful in removing approximately 5,605 gallons of
contaminated groundwater, 62.03 pounds of petroleum vapors, and an immeasurable amount of
free product. Free product has not been detected in any of the groundwater monitoring wells
since March 23, 2000. On April 18, 2000, SEI submitted a Free Product Recovery Report.

On November 21, 2000, three type II monitoring wells (MW-12A, MW-16, and MW-17) were
installed. On August 15, 2001, two additional type II monitoring wells (MW-18 and MW-19) were
installed. Monitoring well construction details are summarized in Table 3. On April 30, 2002, SEI
submitted a Natural Attenuation CAP.

On February 17, 2009, MDSA installed four additional type II monitoring wells (MW-19, MW-20,
MW-21 and MW-22) in the apparent down gradient location of the release. The additional
monitoring wells were installed in an effort to further delineate the extent of the release.
Groundwater sampling events were conducted in July 2009, February 2010, July 2010, March 2011,
and July 2011.
This report presents a summary of the installation and maintenance of Biosocks in select wells and
the laboratory analytical results for the groundwater sampling event conducted in December 2017.

3.0 BIOSOCK INSTALLATION AND MAINTENANCE
On October 5, 2017 and December 22, 2017, ATC personnel placed Biosocks in monitoring wells
MW-1, MW-11, MW-13, MW-14, MW-17, and MW-18 to assist with natural attenuation
activities.

4.0 GROUNDWATER CHARACTERIZATION
4.1 Groundwater Levels
Groundwater levels were measured during the recent groundwater sampling event performed on
Pantry #3079 – Groundwater Monitoring Report January 4, 2018
NCDEQ Incident No. 4028

3

December 22, 2017. An oil/water interface probe was used to gauge depth-to-water and free
product thickness, if encountered, from the top of each well casing. Free product was not
encountered during the December 2017 event. Groundwater elevations ranged from 13.62 feet to
21.87 feet below ground surface (bgs) in monitoring wells MW-8 and MW-13, respectively.

Monitoring well construction details are summarized in Table 3 and groundwater elevation data
from the December 2017 sampling event is included in Table 4. A groundwater elevation map is
included as Figure 4. It appears groundwater flows toward the west across the site.

4.2 Free Product
Free product was not detected in any of the monitoring wells sampled during the December 2017
groundwater sampling event. Free product has been previously detected in monitoring wells
MW-1, MW-8, and recovery well RW-1.

4.3 Groundwater Quality
Groundwater samples were collected from monitoring wells MW-1, MW-2, MW-3, MW-8,
MW-11, MW-13, MW-14, MW-17, and MW-18 on December 22, 2017. A disposable
polyethylene bailer was used to purge a minimum of three well volumes from the monitoring
wells prior to sample collection. Samples were placed in laboratory supplied sample containers
and shipped on ice via overnight courier to Con-test Analytical Laboratory (Con-test) in East
Longmeadow, Massachusetts. Groundwater samples were analyzed for volatile organic
compounds by EPA Method 6200B.

The laboratory analytical results from the December 2017 sampling event indicated that several
dissolved target compound concentrations were detected above established 2L Standards in the
groundwater samples collected from monitoring wells MW-1, MW-11, MW-13, MW-14,
MW-17, and MW-18. It should be noted that dissolved benzene concentrations exceeded
established Gross Contamination Levels (GCL) in monitoring well MW-1. Analytical results for
the monitoring well samples collected in December 2017 are summarized in Table 5. Historical
groundwater analytical data are summarized in Table 6. A dissolved benzene isoconcentration
contour map is included as Figure 5 and a dissolved MTBE isoconcentration map is included as
Pantry #3079 – Groundwater Monitoring Report January 4, 2018
NCDEQ Incident No. 4028

4

Figure 6. Other contaminants of concern are depicted on Figure 7. A copy of the laboratory
analytical report is included in Appendix A.

It should be noted dissolved target compound concentrations appear to have remained relatively
stable since the June 2017 groundwater sampling event.

5.0 SUMMARY
During this reporting period, ATC installed and maintained Biosocks in select monitoring wells and
a groundwater sampling event at the referenced facility. Based on the results of ATC’s assessment,
the following conclusions are made:
· Groundwater at the site flows generally toward the west.
· Free product was not detected in any of the monitoring wells sampled during December
2017.
· Biosocks have been installed and maintained in monitoring wells MW-1, MW-11, MW-13,
MW-14, MW-17, and MW-18 to assist with natural attenuation activities.
· Laboratory analytical results indicated that several dissolved target compound
concentrations were detected above established 2L Standards in the groundwater samples
collected from monitoring wells MW-1, MW-11, MW-13, MW-14, MW-17, and
MW-18.
· Laboratory analytical results indicated that dissolved benzene concentrations were
detected above established GCL Standards in the groundwater sample collected from
monitoring well MW-1.

Based on groundwater analytical results, ATC recommends the continued installation and
maintenance of Biosocks in monitoring wells MW-1, MW-11, MW-13, MW-14, MW-17, and
MW-18, on a quarterly basis, to assist with natural attenuation activities. Additionally, ATC
recommends continued semi-annual groundwater sampling and reporting.

TABLES
TABLE 1
UST SYSTEM INFORMATION
PANTRY #3079
5102 DORTCHES BOULEVARD
ROCKY MOUNT, NASH COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 4028
UST ID
Number Product Capacity (gallons)Date
Installed
Date taken
out of Use
Date
Permanently
Closed
Was Release Associated
With UST System?
0-022631 Gasoline 12,000 2/8/1989 In Use In Use No
0-022631 Gasoline 12,000 2/8/1989 In Use In Use No
0-022631 Gasoline 12,000 2/8/1989 In Use In Use No
0-022631 Diesel 8,000 2/8/1989 In Use In Use No
0-022631 Gasoline 12,000 5/3/1979 Feb 1989 Feb 1989 Yes
0-022631 Gasoline 6,000 5/3/1979 Feb 1989 Feb 1989 Yes
0-022631 Gasoline 6,000 5/3/1979 Feb 1989 Feb 1989 Yes
0-022631 Gasoline 6,000 5/3/1979 Feb 1989 Feb 1989 Yes
UST ID
Number Owner or Operator?
Rocky Mount, North Carolina 27801
Raleigh, North Carolina 27606
1100 Situs Court Suite 100 [phone]
0-022643 Stallings Oil Company 5/3/1979 to February 1989 Owner/Operator
Address Telephone Number
Name of Owner or Operator Dates of Ownership / Operation
Circle K Stores, Inc.February 1989 to present
Address Telephone Number
0-022631 Owner/Operator
315 West Ridge Street [phone]
TABLE 2
WATER SUPPLY WELL INFORMATION
PANTRY #3079
5102 DORTCHES BOULEVARD
ROCKY MOUNT, NASH COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 4028
Well NumberWell OwnerAddressPhone NumberWell UseWell Depth (feet bls)Type of WellWell Casing (feet bls)Well Screen Interval (feet bls)Distance for source area release (feet)Cardinal Direction from releaseWW-1 Samuel Cecil
Griffin
4976 Dortches Blvd,
Rocky Mt, NC
[phone] Water Supply Unknown Unknown Unknown Unknown 560 E
WW-2 Jennifer
Masters
3662 N. Halifax Rd,
Rocky Mt, NC [phone] Water Supply 100 Unknown Unknown Unknown 930 E
Notes:
1. bls = below land surface
TABLE 3
MONITORING WELL CONSTRUCTION INFORMATION
PANTRY #3079
5102 DORTCHES BOULEVARD
ROCKY MOUNT, NASH COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 4028
WELL I.D.Date Installed Well Diameter
(inches)
Screen Slot
Size (inches)
Screened
Interval
(feet)
Total Depth
(feet)
Date
Abandoned
MW-1 4/4/1989 2 0.01 12-27 27 Active
MW-2 4/4/1989 2 0.01 13-28 28 Active
MW-3 4/5/1989 2 0.01 15-30 30 Active
MW-4 12/4/1989 2 0.01 15.5-25.5 25.5 Active
MW-5 12/4/1989 2 0.01 15.5-25.5 25.5 Active
MW-6 12/5/1989 2 0.01 15-25 25 Active
MW-7 12/5/1989 2 0.01 15-25 25 Active
MW-8 12/5/1989 2 0.01 9-24 24 Active
MW-9 3/14/1990 2 0.01 7.5-22.5 22.5 Active
MW-10 3/14/1990 2 0.01 13-23 23 Active
MW-11 3/14/1990 2 0.01 6-21 21 Active
MW-12A 11/21/2000 2 0.01 13-28 28 Active
MW-13 3/15/1990 2 0.01 9.5-24.5 24.5 Active
MW-14 3/15/1990 2 0.01 15-30 30 Active
MW-15 3/15/1990 2 0.01 5-25 25 Active
MW-16 11/21/2000 2 0.01 57.5-60 60 Active
MW-17 11/21/2000 2 0.01 9.5-24.5 24.5 Active
MW-18 8/15/2001 2 0.01 9.5-24.5 24.5 Active
MW-19 8/15/2001 2 0.01 10-25 25 Active
MW-20 2/17/2009 2 0.01 5-20 20 Active
MW-21 2/17/2009 2 0.01 5-20 20 Active
MW-22 2/17/2009 2 0.01 5-20 20 Active
TABLE 4
GROUNDWATER ELEVATION INFORMATION
PANTRY #3079
5102 DORTCHES BOULEVARD
ROCKY MOUNT, NASH COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 4028
Well I.D. Date TOC Elevation
(ft)
Depth to
Product (ft)
Depth to
Groundwater (ft)
Product Thickness
(ft)
Groundwater
Elevations (ft)
MW-1 12/22/2017 503.67 --19.40 --484.27
MW-2 12/22/2017 503.96 --19.87 --484.09
MW-3 12/22/2017 504.40 --20.21 --484.19
MW-7 12/22/2017 499.58 --
MW-8 12/22/2017 498.49 --13.62 --484.87
MW-9 12/22/2017 498.97 --
MW-10 12/22/2017 502.28 --
MW-11 12/22/2017 503.81 --20.02 --483.79
MW-12A 12/22/2017 501.63 --
MW-13 12/22/2017 505.80 --21.87 --483.93
MW-14 12/22/2017 503.40 --19.20 --484.20
MW-15 12/22/2017 504.32 --
MW-17 12/22/2017 502.98 --18.68 --484.30
MW-18 12/22/2017 502.18 --18.05 --484.13
MW-19 12/22/2017 500.78 --
Notes:
1. TOC = Top of well casing.
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
TABLE 5
GROUNDWATER ANALYTICAL DATA
PANTRY #3079
5102 DORTCHES BOULEVARD
ROCKY MOUNT, NASH COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 4028
1,2-DichloroethaneMW-1 12/22/2017 8,600 13,000 2,400 8,800 32,800 2,800 840 <100 2,500 720 <100 <100 54J <100 80J 250
MW-2 12/22/2017 0.85 <0.50 <0.50 <1.50 0.85 1.0 <0.50 <0.50 <1.0 <2.0 <0.50 <2.0 <0.50 <0.50 <2.0 <0.50
MW-3 12/22/2017 <0.50 <0.50 <0.50 <1.50 <3.00 <0.50 <1.0 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
MW-7 12/22/2017
MW-8 12/22/2017 <0.50 <0.50 <0.50 0.19J 0.19J <0.50 <1.0 <0.50 0.37J <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
MW-9 12/22/2017
MW-10 12/22/2017
MW-11 12/22/2017 1,600 50 1,500 1,810 4,960 400 440 <12 1,100 320 5.5J 4.0J 21 4.8J 54 130
MW-12A 12/22/2017
MW-13 12/22/2017 36 0.58J 29 1.4J 66.98 27 23 <1.0 1.2 0.58J 0.88J 1.7 1.1 2.2 4.1 6.3
MW-14 12/22/2017 590 260 460 920 2,230 47 280 <10 450 140 <10 3.6J 20 5.0J 25 76
MW-15 12/22/2017
MW-17 12/22/2017 1,100 17,000 2,200 9,900 30,200 <120 980 <120 1,500 390 <120 <120 42J <120 78J 200
MW-18 12/22/2017 1.2 1.9 2.6 19.0 24.7 0.51 8.2 1.0 15 6.3 <0.50 0.27J 1.8 0.51 1.6J 2.7
MW-19 12/22/2017
1 600 600 500 NE 20 6 70 400 400 0.4 25 70 70 70 70
5,000 260,000 84,500 85,500 NE 20,000 6,000 70,000 28,500 25,000 400 11,700 6,900 8,500 25,000 30,000
Notes:
1. "<" or ND = None detected above method detection limit.
2. NC 2L GW Standard = Title 15A NCAC 2L .0202 Groundwater Standard.
3. GCL = Gross Contaminant Level established by NCDEQ.
4. NE = Not established.
5. MTBE = Methyl tertiary butyl ether.
6. Values in BOLD indicate levels above 2L Groundwater Standards.
7. All concentrations in micrograms per liter (ug/L).
8. J values denotes estimated concentration by the laboratory.
Analytical Methods:
DATE
SAMPLEDWELL I.D.1,2,4-TrimethylbenzeneEPA METHOD 6200B
TolueneDIPEWell Not Sampled
Well Not Sampled
Well Not Sampled
Well Not SampledBenzeneMTBE n-Propylbenzenesec-ButylbenzeneTotal XylenesEthylbenzeneWell Not Sampled
Well Not Sampled p-IsopropyltolueneGCL
2L GW Standard Naphthalene1,3,5-TrimethylbenzeneIsopropylbenzenen-ButylbenzeneTotal BTEX
TABLE 6
HISTORICAL GROUNDWATER ANALYTICAL DATA
PANTRY #3079
5102 DORTCHES BOULEVARD
ROCKY MOUNT, NASH COUNTY, NORTH CAROLINA
NCDEQ FACILITY ID NO. 0-022631
NCDEQ INCIDENT NO. 4028
12/29/1989 pre-CAP
10/12/1999 pre-CAP
12/15/2000 pre-CAP 16,000 26,000 3,600 17,400 8,400 --
9/4/2002 CAP 15,000 26,000 4,200 20,600 11,000 --
11/26/2002 CAP 15,403.8 24,427.3 2,225.1 17,976.0 3,794.4 --
2/28/2003 ARMR 8,200 15,000 2,900 15,800 290 --
5/16/2003 ARMR 8,200 13,000 2,600 13,300 7,200 --
11/10/2003 ARMR 9,100 13,000 3,000 14,300 12,000 --
9/28/2004 ARMR 4,700 8,600 1,200 7,600 7,000 --
12/15/2004 ARMR 9,050 18,800 3,920 18,200 4,050 --
2/23/2009 ARMR 8,300 7,400 390 1,600 8,100 1,100
7/28/2009 ARMR 8,300 11,000 2,100 15,000 7,100 820
2/17/2010 ARMR 4,800 6,300 1,300 16,000 2,800 820
7/9/2010 ARMR 10,000 16,000 2,500 15,000 6,700 870
3/7/2011 ARMR 8,190 8,210 876 14,510 9,520 1,120
7/21/2011 ARMR 7,470 6,530 953 9,850 12,200 691
3/21/2012 ARMR 3,700 4,500 2,000 11,500 1,800 960
11/17/2012 ARMR 8,700 8,600 2,500 15,600 6,300 970
4/8/2015 ARMR 2,280 3,530 1,610 6,510 1,310 788
10/19/2015 ARMR 6,250 9,320 3,610 8,440 5,060 2,220
5/16/2016 ARMR 5,700 13,000 2,400 10,300 1,700 610
12/29/2016 ARMR 4,400 7,400 2,100 8,500 890 630
6/8/2017 ARMR 5,500 11,000 2,400 8,400 1,600 1,000
12/22/2017 ARMR 8,600 13,000 2,400 8,800 2,800 840
12/29/1989 pre-CAP 32.5 BDL BDL 98.1 ----
10/12/1999 pre-CAP 18 110 BDL BDL 48 --
12/15/2000 pre-CAP 14 BDL BDL BDL 130 --
9/4/2002 CAP 7.7 <1 <1 <3 100 --
11/26/2002 ARMR 2.9 <0.5 <0.5 <1.5 33.8 --
2/28/2003 ARMR 1.9 <5 <1 <3 52 --
5/16/2003 ARMR 3.9 <5 <1 <3 51 --
11/10/2003 ARMR 2 <5 <5 <3 33 --
9/28/2004 ARMR <1 <5 <1 <3 31 --
12/15/2004 ARMR 1.7 <1 <1 <3 44.6 --
2/23/2009 ARMR <0.2 <0.27 <0.2 <0.4 15 <0.39
7/28/2009 ARMR <0.2 <0.27 <0.2 <0.4 14 <0.39
2/17/2010 ARMR 0.41 0.67 <0.1 0.58 13 <0.086
7/9/2010 ARMR 0.46 <0.053 <0.1 <0.22 10 <0.086
3/7/2011 ARMR <0.5 <0.5 <0.5 <1.5 16.4 <2
7/21/2011 ARMR 0.56 <0.5 <0.5 <1.5 11.2 0.17J
3/21/2012 ARMR <0.2 <0.2 <0.1 <0.3 7 0.48
11/17/2012 ARMR 1.2 <0.2 <0.2 <0.6 8.9 0.62
4/8/2015 ARMR <0.3 <0.2 <0.2 <0.6 3.4 <0.5
10/19/2015 ARMR 0.26J <0.25 <0.25 <0.75 3.8 <1.0
5/16/2016 ARMR <0.50 <0.50 <0.50 <1.50 0.99 <0.50
12/29/2016 ARMR 0.35J 0.21J <0.50 <1.50 1.8 <0.50
6/8/2017 ARMR 0.63 <0.50 0.13J <1.50 0.56 <1.0
12/22/2017 ARMR 0.85 <0.50 <0.50 <1.50 1.0 <0.50
1 600 600 500 20 6
5,000 260,000 84,500 85,500 20,000 6,000
Notes:
1. "<" or ND = None detected above method detection limit.
2. NC 2L GW Standard = Title 15A NCAC 2L .0202 Groundwater Standard.
3. GCL = Gross Contaminant Level established by NCDEQ.
4. Values in BOLD indicate levels above 2L Groundwater Standards.
5. MTBE = Methyl tertiary butyl ether.
6. All concentrations in micrograms per liter (ug/L).
7. BDL = Below Detection Limit.
8. J value denotes estimated concentration by the laboratory.EthylbenzeneTotal XylenesNot Sampled - Free Product
Analytical Methods:EPA METHOD 6010D or 6200B
WellDate SampledIncident PhaseNot Sampled - Free Product MTBENaphthaleneBenzeneTolueneMW-2
MW-1
2L GW Standard
GCL
TABLE 6
HISTORICAL GROUNDWATER ANALYTICAL DATA
PANTRY #3079
5102 DORTCHES BOULEVARD
ROCKY MOUNT, NASH COUNTY, NORTH CAROLINA
NCDEQ FACILITY ID NO. 0-022631
NCDEQ INCIDENT NO. 4028
EthylbenzeneTotal XylenesAnalytical Methods:EPA METHOD 6010D or 6200B
WellDate SampledIncident PhaseNot Sampled - Free Product MTBENaphthaleneBenzeneToluene12/29/1989 pre-CAP BDL BDL BDL BDL ----
4/6/1990 pre-CAP 6 BDL 3.5 BDL ----
10/12/1999 pre-CAP BDL BDL BDL BDL 66 --
12/15/2000 pre-CAP BDL BDL BDL BDL 53 --
9/4/2002 CAP <1 <1 <1 <3 15 --
11/26/2002 CAP <0.5 <0.5 <0.5 <1.5 17.3 --
2/28/2003 ARMR <1 <5 <1 <3 5.7 --
5/16/2003 ARMR <1 <5 <1 <3 27 --
11/10/2003 ARMR <1 <5 <1 <3 20 --
9/28/2004 ARMR <1 <5 <1 <3 19 --
12/15/2004 ARMR <1 <1 <1 <3 51.2 --
2/23/2009 ARMR <2 <2.7 <2 <4 430 7.2
7/28/2009 ARMR <0.4 <0.54 <0.4 <0.8 220 <0.78
2/17/2010 ARMR <0.05 1.3 0.45 2 150 <0.086
7/9/2010 ARMR <0.05 <0.053 <0.1 <0.22 89 <0.086
3/7/2011 ARMR <0.5 <0.5 <0.5 <1.5 23.6 <2
7/21/2011 ARMR <0.5 <0.5 <0.5 <1.5 196 <0.5
3/21/2012 ARMR <0.2 <0.2 <0.1 <0.3 16 <0.2
11/17/2012 ARMR <0.3 <0.2 <0.2 <0.6 33 <0.5
4/8/2015 ARMR <0.3 <0.2 <0.2 <0.6 0.56 <0.5
10/19/2015 ARMR <0.25 <0.25 <0.25 <0.75 0.26J <1.0
5/16/2016 ARMR <0.50 <0.50 <0.50 <1.50 <0.50 <0.50
12/29/2016 ARMR <0.50 <0.50 <0.50 <1.50 <0.50 <0.50
6/8/2017 ARMR <0.50 <0.50 <0.50 <1.50 <0.50 <1.0
12/22/2017 ARMR <0.50 <0.50 <0.50 <1.50 <0.50 <1.0
12/29/1989 pre-CAP BDL 4 BDL BDL ----
4/6/1990 pre-CAP 85 170 22 160 ----
10/12/1999 pre-CAP
2/23/2009 ARMR <0.2 <0.27 <0.2 <0.4 <0.38 <0.39
7/28/2009 ARMR
2/17/2010 ARMR
4/8/2015 ARMR
10/19/2015 ARMR
12/29/1989 pre-CAP BDL BDL BDL BDL ----
4/6/1990 pre-CAP 5.3 4 3.4 83 ----
10/12/1999 pre-CAP BDL BDL BDL BDL BDL --
9/4/2002 CAP <1 <1 <1 <3 <1 --
11/26/2002 CAP <0.5 <0.5 <0.5 <1.5 <1 --
2/28/2003 ARMR <1 <5 <1 <3 <5 --
5/16/2003 ARMR <1 <5 <1 <3 <5 --
11/10/2003 ARMR <1 <5 <1 <3 <1 --
9/28/2004 ARMR <1 <5 <1 <3 <1 --
12/15/2004 ARMR <1 <1 <1 <3 <1 --
2/23/2009 ARMR <0.2 <0.27 <0.2 <0.4 <0.38 <0.39
7/28/2009 ARMR <0.2 <0.27 <0.2 <0.4 <0.38 <0.78
2/17/2010 ARMR <0.05 <0.11 <0.1 <0.22 <0.12 <0.086
7/9/2010 ARMR <0.05 <0.053 <0.1 <0.22 <0.12 <0.086
3/7/2011 ARMR <0.5 1.3 0.6 2.29 <0.5 <2
7/21/2011 ARMR <0.5 0.13J <0.5 <1.5 <0.5 <0.5
3/21/2012 ARMR <0.2 <0.2 <0.1 <0.3 <0.2 <0.2
11/17/2012 ARMR <0.3 <0.2 <0.2 <0.6 <0.2 <0.5
4/8/2015 ARMR
10/19/2015 ARMR
1 600 600 500 20 6
5,000 260,000 84,500 85,500 20,000 6,000
Notes:
1. "<" or ND = None detected above method detection limit.
2. NC 2L GW Standard = Title 15A NCAC 2L .0202 Groundwater Standard.
3. GCL = Gross Contaminant Level established by NCDEQ.
4. J value denotes estimated concentration by the laboratory.
5. Values in BOLD indicate levels above 2L Groundwater Standards.
6. MTBE = Methyl tertiary butyl ether.
7. All concentrations in micrograms per liter (ug/L).
8. BDL = Below Detection Limit.
2L GW Standard
GCL
Not Sampled - Unable to Locate
Not Sampled - Unable to Locate
Not Sampled - Unable to Locate
Not Sampled - Unable to Access
Not Sampled - Unable to Locate
Not Sampled - Unable to Access
Not Sampled - Unable to Locate
MW-3
MW-5
MW-4
TABLE 6
HISTORICAL GROUNDWATER ANALYTICAL DATA
PANTRY #3079
5102 DORTCHES BOULEVARD
ROCKY MOUNT, NASH COUNTY, NORTH CAROLINA
NCDEQ FACILITY ID NO. 0-022631
NCDEQ INCIDENT NO. 4028
EthylbenzeneTotal XylenesAnalytical Methods:EPA METHOD 6010D or 6200B
WellDate SampledIncident PhaseNot Sampled - Free Product MTBENaphthaleneBenzeneToluene12/29/1989 pre-CAP BDL BDL BDL BDL ----
4/6/1990 pre-CAP 5.6 6 3.5 23 ----
10/12/1999 pre-CAP BDL BDL BDL BDL ----
12/15/2000 pre-CAP 1.5 BDL BDL BDL 15 --
9/4/2002 CAP <1 <1 <1 <3 <1 --
11/26/2002 CAP <0.5 <0.5 <0.5 <1.5 <1 --
2/28/2003 ARMR <1 <5 <1 <3 <5 --
5/16/2003 ARMR <1 <5 <1 <3 <5 --
11/10/2003 ARMR <1 <5 <1 <3 <1 --
9/28/2004 ARMR <1 <5 <1 <3 <1 --
12/15/2004 ARMR <1 <1 <1 <3 <1 --
2/23/2009 ARMR <0.2 <0.27 <0.2 <0.4 1.2 <0.39
7/28/2009 ARMR <0.2 <0.27 <0.2 <0.4 0.48 <0.78
2/17/2010 ARMR <0.05 <0.11 <0.1 <0.22 <0.12 <0.086
7/15/2010 ARMR <0.05 <0.053 <0.1 <0.22 <0.12 <0.086
3/7/2011 ARMR <0.5 1 <0.5 1.2 <0.5 <2
7/21/2011 ARMR <0.5 <0.5 <0.5 <1.5 <0.5 <0.5
3/21/2012 ARMR
11/17/2012 ARMR <0.3 <0.2 <0.2 <0.6 <0.2 <0.5
4/8/2015 ARMR
10/19/2015 ARMR
12/29/1989 pre-CAP 44.5 BDL BDL 46.6 ----
4/6/1990 pre-CAP 18 BDL BDL 36 ----
10/12/1999 pre-CAP BDL BDL BDL BDL 7 --
12/15/2000 pre-CAP 49 BDL BDL 3.1 86 --
9/4/2002 CAP <1 <1 <1 <3 6.3 --
11/26/2002 CAP 11.4 5.8 <0.5 <1.5 34.9 --
2/28/2003 ARMR <1 <5 <1 <3 <5 --
5/16/2003 ARMR 8.7 <5 <1 <3 15 --
11/10/2003 ARMR 78 <5 <1 7 94 --
9/28/2004 ARMR <1 <5 <1 <3 <1 --
12/15/2004 ARMR <1 <1 <1 <3 <1 --
2/23/2009 ARMR <0.2 <0.27 <0.2 <0.4 <0.38 <0.39
7/28/2009 ARMR <0.2 <0.27 <0.2 <0.4 <0.38 <0.39
2/17/2010 ARMR <0.05 <0.11 <0.1 <0.22 <0.12 <0.086
7/9/2010 ARMR <0.05 <0.053 <0.1 <0.22 0.73 <0.086
3/7/2011 ARMR <0.5 <0.5 <0.5 <1.5 <0.5 <2
7/21/2011 ARMR <0.5 <0.5 <0.5 <1.5 <0.5 <0.5
3/21/2012 ARMR <0.2 <0.2 <0.1 <0.3 <0.2 <0.2
11/17/2012 ARMR <0.3 <0.2 <0.2 <0.6 <0.2 <0.5
4/8/2015 ARMR <0.3 <0.2 <0.2 <0.6 <0.2 <0.5
10/19/2015 ARMR <0.25 <0.25 <0.25 <0.75 <0.25 <1.0
5/16/2016 ARMR
12/29/2016 ARMR
6/8/2017 ARMR
12/22/2017 ARMR
1 600 600 500 20 6
5,000 260,000 84,500 85,500 20,000 6,000
Notes:
1. "<" or ND = None detected above method detection limit.
2. NC 2L GW Standard = Title 15A NCAC 2L .0202 Groundwater Standard.
3. GCL = Gross Contaminant Level established by NCDEQ.
4. J value denotes estimated concentration by the laboratory.
5. Values in BOLD indicate levels above 2L Groundwater Standards.
6. MTBE = Methyl tertiary butyl ether.
7. All concentrations in micrograms per liter (ug/L).
8. BDL = Below Detection Limit.
GCL
Not Sampled - Unable to Access
Well Not Sampled
MW-6
MW-7
2L GW Standard
Well Not Sampled
Well Not Sampled
Not Sampled
Not Sampled - Unable to Access
Well Not Sampled
TABLE 6
HISTORICAL GROUNDWATER ANALYTICAL DATA
PANTRY #3079
5102 DORTCHES BOULEVARD
ROCKY MOUNT, NASH COUNTY, NORTH CAROLINA
NCDEQ FACILITY ID NO. 0-022631
NCDEQ INCIDENT NO. 4028
EthylbenzeneTotal XylenesAnalytical Methods:EPA METHOD 6010D or 6200B
WellDate SampledIncident PhaseNot Sampled - Free Product MTBENaphthaleneBenzeneToluene12/29/1989 pre-CAP 1.5 1.6 BDL 6.8 ----
4/6/1990 pre-CAP 6.8 BDL BDL 14 ----
10/12/1999 pre-CAP BDL BDL BDL BDL BDL --
12/15/2000 pre-CAP BDL BDL BDL BDL BDL --
9/4/2002 CAP <1 <1 <1 <3 <1 --
11/26/2002 CAP <0.5 <0.5 <0.5 <1.5 <1 --
2/28/2003 ARMR <1 <5 <1 <3 <5 --
5/16/2003 ARMR <1 <5 <1 <3 <5 --
11/10/2003 ARMR <1 <5 <1 <3 <1 --
9/28/2004 ARMR <1 <5 <1 <3 <1 --
12/15/2004 ARMR <1 <1 <1 <3 <1 --
2/23/2009 ARMR
7/28/2009 ARMR <0.2 <0.27 <0.2 <0.4 <0.38 <0.39
2/17/2010 ARMR <0.05 <0.11 <0.1 <0.22 <0.12 <0.086
7/9/2010 ARMR <0.05 <0.053 <0.1 <0.22 <0.12 <0.086
3/7/2011 ARMR <0.5 <0.5 <0.5 <1.5 <0.5 <2
7/21/2011 ARMR <0.5 <0.5 <0.5 <1.5 <0.5 <0.5
3/21/2012 ARMR <0.2 <0.2 <0.1 <0.3 <0.2 <0.2
11/18/2012 ARMR <0.3 <0.2 <0.2 <0.6 <0.2 <0.5
4/8/2015 ARMR
10/19/2015 ARMR <0.25 0.38J <0.25 90.4 <0.25 12.6
5/16/2016 ARMR <0.50 <0.50 <0.50 1.07J <0.50 <0.50
12/29/2016 ARMR 0.92 1.5 1.8 4.9 <0.50 1.3
6/8/2017 ARMR <0.50 <0.50 <0.50 <1.50 <0.50 <1.0
12/22/2017 ARMR <0.50 <0.50 <0.50 0.19J <0.50 <1.0
4/6/1990 pre-CAP BDL BDL BDL BDL ----
10/12/1999 pre-CAP BDL 1.2 BDL BDL BDL --
12/15/2000 pre-CAP BDL BDL BDL BDL BDL --
9/4/2002 CAP <1 <1 <1 <3 <1 --
11/26/2002 CAP <0.5 <0.5 <0.5 <1.5 <1 --
2/28/2003 ARMR <1 <5 <1 <3 <5 --
5/16/2003 ARMR <1 <5 <1 <3 <5 --
11/10/2003 ARMR <1 <5 <1 <3 <1 --
9/28/2004 ARMR <1 <5 <1 <3 <1 --
12/15/2004 ARMR <1 <1 <1 <3 <1 --
2/23/2009 ARMR
7/28/2009 ARMR <0.2 <0.27 <0.2 <0.4 <0.38 <0.39
2/17/2010 ARMR <0.05 <0.11 <0.1 <0.22 <0.12 <0.086
7/9/2010 ARMR <0.05 <0.053 <0.1 <0.22 <0.12 <0.086
3/7/2011 ARMR <0.5 <0.5 <0.5 <1.5 <0.5 <2
7/21/2011 ARMR <0.5 <0.5 <0.5 <1.5 <0.5 <0.5
3/21/2012 ARMR <0.2 <0.2 <0.1 <0.3 <0.2 <0.2
11/18/2012 ARMR <0.3 <0.2 <0.2 <0.6 <0.2 <0.5
4/8/2015 ARMR <0.3 <0.2 <0.2 <0.6 <0.2 <0.5
10/19/2015 ARMR <0.25 <0.25 <0.25 <0.75 <0.25 <1.0
5/16/2016 ARMR
12/29/2016 ARMR
6/8/2017 ARMR
12/22/2017 ARMR
1 600 600 500 20 6
5,000 260,000 84,500 85,500 20,000 6,000
Notes:
1. "<" or ND = None detected above method detection limit.
2. NC 2L GW Standard = Title 15A NCAC 2L .0202 Groundwater Standard.
3. GCL = Gross Contaminant Level established by NCDEQ.
4. NA = Not analyzed.
5. Values in BOLD indicate levels above 2L Groundwater Standards.
6. MTBE = Methyl tertiary butyl ether.
7. All concentrations in micrograms per liter (ug/L).
8. BDL = Below Detection Limit.
9. NR = Not Reported in hisorical tables.
Well Not Sampled
Well Not Sampled
Well Not Sampled
Well Not Sampled
2L GW Standard
MW-8
GCL
Not Sampled
Not Sampled - Free Product
Not Sampled
MW-9
TABLE 6
HISTORICAL GROUNDWATER ANALYTICAL DATA
PANTRY #3079
5102 DORTCHES BOULEVARD
ROCKY MOUNT, NASH COUNTY, NORTH CAROLINA
NCDEQ FACILITY ID NO. 0-022631
NCDEQ INCIDENT NO. 4028
EthylbenzeneTotal XylenesAnalytical Methods:EPA METHOD 6010D or 6200B
WellDate SampledIncident PhaseNot Sampled - Free Product MTBENaphthaleneBenzeneToluene4/6/1990 pre-CAP BDL BDL BDL BDL ----
10/12/1999 pre-CAP BDL BDL BDL BDL BDL --
12/15/2000 pre-CAP BDL BDL BDL BDL BDL --
9/4/2002 CAP <1 <1 <1 <3 <1 --
11/26/2002 CAP <0.5 <0.5 <0.5 <1.5 <1 --
2/28/2003 ARMR <1 <5 <1 <3 <5.0 --
5/16/2003 ARMR <1 <5 <1 <3 <5.0 --
11/10/2003 ARMR <1 <5 <1 <3 <1 --
9/28/2004 ARMR <1 <5 <1 <3 <1 --
12/15/2004 ARMR <1 <1 <1 <3 <1 --
2/23/2009 ARMR <0.2 <0.27 <0.2 <0.4 <0.38 <0.39
7/28/2009 ARMR
2/17/2010 ARMR
7/9/2010 ARMR <0.05 <0.053 <0.1 <0.22 0.46 <0.086
3/7/2011 ARMR 1.5 3 0.6 6.4 <0.5 <2
7/21/2011 ARMR <0.5 <0.5 <0.5 <1.5 0.55 <0.5
3/21/2012 ARMR <0.2 <0.2 <0.1 <0.3 <0.2 <0.2
11/17/2012 ARMR <0.3 <0.2 <0.2 <0.6 <0.2 <0.5
4/8/2015 ARMR <0.3 1.8 <0.2 <0.6 <0.2 <0.5
10/19/2015 ARMR <0.25 <0.25 <0.25 <0.75 <0.25 <1.0
5/16/2016 ARMR
12/29/2016 ARMR
6/8/2017 ARMR
12/22/2017 ARMR
4/6/1990 pre-CAP 10,000 13,000 14,000 9,300 ----
10/12/1999 pre-CAP 9,300 19,000 2,500 13,300 4,500 --
12/15/2000 pre-CAP 12,000 20,000 3,200 15,100 5,600 --
9/4/2002 CAP 12,000 14,000 3,500 16,200 4,600 --
11/26/2002 CAP 13,659.2 14,950.3 3,102.1 15,561.7 3,316.5 --
2/28/2003 ARMR 7,300 13,000 3,200 16,000 940 --
5/16/2003 ARMR 5,500 8,400 2,700 12,700 2,800 --
11/10/2003 ARMR 5,500 9,400 2,600 11,400 2,400 --
9/28/2004 ARMR 5,300 6,400 2,000 10,500 1,400 --
12/15/2004 ARMR 5,760 9,090 3,360 14,400 2,910 --
2/23/2009 ARMR 2,300 510 470 6,600 1,400 840
7/28/2009 ARMR 3,200 420 2,400 11,000 1,400 780
2/17/2010 ARMR 3,200 1,000 2,700 12,000 860 710
7/9/2010 ARMR 3,000 330 3,500 12,000 950 1,000
3/7/2011 ARMR 1,070 96 341 3,250 674 402
7/21/2011 ARMR
3/21/2012 ARMR 1,600 160 1,100 4,500 900 600
11/17/2012 ARMR 1,600 210 1,600 5,800 520 670
4/8/2015 ARMR 1,500 187 2,010 4,430 355 846
10/19/2015 ARMR 1,730 146 1,720 4,620 543 768
5/16/2016 ARMR 1,600 120 2,700 5,000 250 850
12/29/2016 ARMR 1,300 54 770 1,430 270 180
6/8/2017 ARMR 1,500 110 2,400 4,200 270 720
12/22/2017 ARMR 1,600 50 1,500 1,810 400 440
1 600 600 500 20 6
5,000 260,000 84,500 85,500 20,000 6,000
Notes:
1. "<" or ND = None detected above method detection limit.
2. NC 2L GW Standard = Title 15A NCAC 2L .0202 Groundwater Standard.
3. GCL = Gross Contaminant Level established by NCDEQ.
4. Values in BOLD indicate levels above 2L Groundwater Standards.
5. MTBE = Methyl tertiary butyl ether.
6. All concentrations in micrograms per liter (ug/L).
7. BDL = Below Detection Limit.
Well Not Sampled
Well Not Sampled
MW-10
Not sampled; insufficient water
Well Not Sampled
2L GW Standard
GCL
Not Sampled
Not Sampled
Well Not Sampled
MW-11
TABLE 6
HISTORICAL GROUNDWATER ANALYTICAL DATA
PANTRY #3079
5102 DORTCHES BOULEVARD
ROCKY MOUNT, NASH COUNTY, NORTH CAROLINA
NCDEQ FACILITY ID NO. 0-022631
NCDEQ INCIDENT NO. 4028
EthylbenzeneTotal XylenesAnalytical Methods:EPA METHOD 6010D or 6200B
WellDate SampledIncident PhaseNot Sampled - Free Product MTBENaphthaleneBenzeneToluene4/6/1990 pre-CAP 8.7 BDL 4 17 ----
10/12/1999 pre-CAP
7/28/2009 pre-CAP
12/15/2000 pre-CAP BDL BDL 1.1 53 9.1 --
9/4/2002 CAP <5 <5 30 149 <5 --
11/26/2002 CAP <0.5 <0.5 10.8 50.8 <1 --
2/28/2003 ARMR 70 <250 180 720 <250 --
5/16/2003 ARMR <1 <10 19 78 <10 --
11/10/2003 ARMR 1.1 <5 13 41 <1 --
9/28/2004 ARMR <1 <5 6.1 15.1 <1 --
12/15/2004 ARMR 28.7 3.7 24.9 63.7 21.4 --
2/23/2009 ARMR <0.2 <0.27 0.91 0.4 <0.38 6
7/28/2009 ARMR <0.2 <0.27 4.4 <0.4 <0.38 8
2/17/2010 ARMR 0.79 4.5 3.4 5.4 <0.12 9.5
7/9/2010 ARMR 2 <0.053 <0.1 0.8 <0.12 9.8
3/7/2011 ARMR <0.5 <0.5 <0.5 <1.5 <0.5 <2
7/21/2011 ARMR <0.5 <0.5 0.32J <1.5 <0.5 4.9
3/21/2012 ARMR <0.2 <0.2 1.2 <0.3 <0.2 <0.2
11/18/2012 ARMR <0.3 <0.2 0.92 <0.6 <0.2 <0.5
4/8/2015 ARMR <0.3 <0.2 0.22 <0.6 <0.2 2.8
10/19/2015 ARMR <0.25 <0.25 <0.25 <0.75 <0.25 <1.0
5/16/2016 ARMR
12/29/2016 ARMR
6/8/2017 ARMR
12/22/2017 ARMR
4/6/1990 pre-CAP 36 1,200 580 3,500 ----
10/12/1999 pre-CAP 290 70 140 BDL 84 --
12/15/2000 pre-CAP 680 130 300 310 170 --
9/4/2002 CAP 850 240 300 320 <10 --
11/26/2002 CAP 103.4 13.7 123.7 35.4 22.1 --
2/28/2003 ARMR 100 <50 99 39 <50 --
5/16/2003 ARMR 79 33 58 52 <5 --
11/10/2003 ARMR 52 17 66 17.9 <1 --
9/28/2004 ARMR 27 <50 39 <30 <10 --
12/15/2004 ARMR 41.7 3.3 55.9 5.6 17.7 --
2/23/2009 ARMR 13 1 42 8.3 5.1 30
7/28/2009 ARMR 80 4 57 12 20 40
2/17/2010 ARMR 15 3.3 33 27 9.7 27
7/9/2010 ARMR 210 66 150 110 41 100
3/7/2011 ARMR 23.8 0.8 16 2.97 23.5 24.6
7/21/2011 ARMR 7 1.6 19.2 4.34 4.2 17.9
3/21/2012 ARMR 5.1 1.1 19 23.88 11 <0.2
11/18/2012 ARMR 4 0.54 18 8.3 4.1 <0.5
4/8/2015 ARMR 22.5 6.1 27.3 7.1 9.9 20.3
10/19/2015 ARMR 77.1 13.8 52.7 48.5 28.5 40.7
5/17/2016 ARMR 100 49 120 134 42 87
12/29/2016 ARMR 1.9 1.2 2.3 3.16 0.98 4.2
6/8/2017 ARMR 4.2 0.24J 5.0 1.75J <0.50 11
12/22/2017 ARMR 36 0.58J 29 1.4J 27 23
1 600 600 500 20 6
5,000 260,000 84,500 85,500 20,000 6,000
Notes:
1. "<" or ND = None detected above method detection limit.
2. NC 2L GW Standard = Title 15A NCAC 2L .0202 Groundwater Standard.
3. GCL = Gross Contaminant Level established by NCDEQ.
4. J value denotes estimated concentration by the laboratory.
5. Values in BOLD indicate levels above 2L Groundwater Standards.
6. MTBE = Methyl tertiary butyl ether.
7. All concentrations in micrograms per liter (ug/L).
8. BDL = Below Detection Limit.
Well Not Sampled
Well Not Sampled
2L GW Standard
MW-12
Well Not Sampled
Not Sampled - Unable to Locate
Not Sampled - Unable to Locate
Well Not Sampled
MW-13
MW-12A
GCL
TABLE 6
HISTORICAL GROUNDWATER ANALYTICAL DATA
PANTRY #3079
5102 DORTCHES BOULEVARD
ROCKY MOUNT, NASH COUNTY, NORTH CAROLINA
NCDEQ FACILITY ID NO. 0-022631
NCDEQ INCIDENT NO. 4028
EthylbenzeneTotal XylenesAnalytical Methods:EPA METHOD 6010D or 6200B
WellDate SampledIncident PhaseNot Sampled - Free Product MTBENaphthaleneBenzeneToluene4/6/1990 pre-CAP 9,000 10,000 1,250 9,300 ----
10/12/1999 pre-CAP 10,000 16,000 2,200 9,900 2,100 --
12/15/2000 pre-CAP 10,000 23,000 5,300 21,600 BDL --
9/4/2002 CAP 3,200 8,700 1,800 8,100 <75 --
11/26/2002 CAP 3,169.4 6,320.2 946.9 4,690.8 <20 --
2/28/2003 ARMR 4,500 8,700 1,300 6,200 <250 --
5/16/2003 ARMR 73 100 21 97 12 --
11/10/2003 ARMR 9,000 13,000 2,600 11,400 1,400 --
9/28/2004 ARMR 8,000 12,000 2,000 8,700 700 --
12/15/2004 ARMR 11,300 23,000 3,520 16,100 1,920 --
2/23/2009 ARMR 950 1,700 650 2,600 56 260
7/28/2009 ARMR 8,300 14,000 2,900 13,000 640 810
2/17/2010 ARMR 5,500 7,500 1,900 7,700 360 470
7/9/2010 ARMR 4,300 5,800 2,200 8,300 350 920
3/7/2011 ARMR 2,450 1,830 1,530 6,340 121 652
7/21/2011 ARMR 2,670 3,180 1,190 4,920 164 507
3/21/2012 ARMR 4,000 5,300 1,700 7,800 280 720
11/18/2012 ARMR 4,100 5,900 2,400 9,100 180 820
4/8/2015 ARMR 3,400 1,740 2,200 4,510 399 888
10/19/2015 ARMR 1,910 739 1,770 4,060 116 808
5/17/2016 ARMR 4,200 1,500 3,200 6,200 320 1,100
12/29/2016 ARMR 3,700 1,600 2,300 6,100 180 770
6/8/2017 ARMR 2,800 1,900 2,000 4,200 160 660
12/22/2017 ARMR 590 260 460 920 47 280
5/4/1990 pre-CAP 3.3 6.2 1.4 0.56 ----
10/12/1999 pre-CAP BDL BDL BDL BDL BDL --
12/15/2000 pre-CAP BDL BDL BDL BDL BDL --
9/4/2002 CAP <1 <1 <1 <3 <1 --
11/26/2002 CAP <0.5 <0.5 <0.5 <1.5 <1 --
2/28/2003 ARMR <1 <5 <1 <3 <5 --
5/16/2003 ARMR <1 <5 <1 <3 <5 --
11/10/2003 ARMR <1 <5 <1 <3 <1 --
9/28/2004 ARMR <1 <5 <1 <3 <1 --
12/15/2004 ARMR <1 <1 <1 <3 <1 --
2/23/2009 ARMR <0.2 <0.27 <0.2 <0.4 <0.38 <0.39
7/28/2009 ARMR <0.2 <0.27 <0.2 <0.4 <0.38 <0.39
2/17/2010 ARMR <0.05 0.59 <0.1 1 <0.12 <0.086
7/9/2010 ARMR <0.05 <0.053 <0.1 <0.22 <0.12 <0.086
3/7/2011 ARMR <0.5 0.61 <0.5 <1.5 <0.5 <2
7/21/2011 ARMR <0.5 <0.5 <0.5 <1.5 <0.5 <0.5
3/21/2012 ARMR <0.2 <0.2 <0.1 <0.3 <0.2 <0.2
11/17/2012 ARMR <0.3 <0.2 <0.2 <0.6 <0.2 <0.5
4/8/2015 ARMR <0.3 <0.2 <0.2 <0.6 <0.2 0.54
10/19/2015 ARMR <0.25 <0.25 <0.25 <0.75 <0.25 <1.0
5/16/2016 ARMR
12/29/2016 ARMR
6/8/2017 ARMR
12/22/2017 ARMR
1 600 600 500 20 6
5,000 260,000 84,500 85,500 20,000 6,000
Notes:
1. "<" or ND = None detected above method detection limit.
2. NC 2L GW Standard = Title 15A NCAC 2L .0202 Groundwater Standard.
3. GCL = Gross Contaminant Level established by NCDEQ.
4. Values in BOLD indicate levels above 2L Groundwater Standards.
5. MTBE = Methyl tertiary butyl ether.
6. All concentrations in micrograms per liter (ug/L).
7. BDL = Below Detection Limit.
Well Not Sampled
Well Not Sampled
Well Not Sampled
Well Not Sampled
MW-15
MW-14
2L GW Standard
GCL
TABLE 6
HISTORICAL GROUNDWATER ANALYTICAL DATA
PANTRY #3079
5102 DORTCHES BOULEVARD
ROCKY MOUNT, NASH COUNTY, NORTH CAROLINA
NCDEQ FACILITY ID NO. 0-022631
NCDEQ INCIDENT NO. 4028
EthylbenzeneTotal XylenesAnalytical Methods:EPA METHOD 6010D or 6200B
WellDate SampledIncident PhaseNot Sampled - Free Product MTBENaphthaleneBenzeneToluene12/15/2000 pre-CAP 560 800 510 1,800 BDL --
9/4/2002 CAP 20 74 480 1,140 <15 --
11/26/2002 CAP <0.5 <0.5 17.1 56.3 <1 --
2/28/2003 ARMR <5 <25 23 56.2 <25 --
5/16/2003 ARMR 6 7.4 3.6 8.4 <5 --
11/10/2003 ARMR 240 490 250 880 <10 --
9/28/2004 ARMR 14 22 11 31 1.7 --
12/15/2004 ARMR 12.9 15.3 4.9 10.2 4.4 --
2/23/2009 ARMR
7/28/2009 ARMR
2/17/2010 ARMR
3/7/2011 ARMR
7/21/2011 ARMR
3/21/2012 ARMR
12/15/2000 pre-CAP 14,000 25,000 3,300 15,100 BDL --
9/4/2002 CAP 9,400 27,000 3,200 14,800 <200 --
11/26/2002 CAP 4,280 20,720 2,700 13,140 <5 --
2/28/2003 ARMR 6,000 16,000 2,200 10,000 <250 --
5/16/2003 ARMR 3,800 9,600 1,600 6,500 <50 --
11/10/2003 ARMR 6,200 15,000 2,000 8,800 <25 --
9/28/2004 ARMR 5,800 1,400 1,800 8,100 <200 --
12/15/2004 ARMR 6,770 21,800 3,400 14,700 1,100 --
2/23/2009 ARMR 5,000 19,000 3,100 14,000 <190 1,100
7/28/2009 ARMR 5,100 26,000 3,200 16,000 <190 1,200
2/17/2010 ARMR 4,800 15,000 2,400 12,000 <24 810
7/9/2010 ARMR 3,600 17,000 2,300 11,000 <24 780
3/7/2011 ARMR 3,900 17,900 3,140 14,380 84.2 1,110
7/21/2011 ARMR
3/21/2012 ARMR 1,600 6,600 2,100 8,200 39 2,700
11/18/2012 ARMR 2,400 13,000 2,400 10,600 25 1,100
4/8/2015 ARMR 794 6,520 1,740 5,980 16.4 1,070
10/19/2015 ARMR 898 14,700 4,820 21,680 <25.0 3,160
5/17/2016 ARMR 2,100 10,000 2,300 9,000 <120 750
12/29/2016 ARMR 990 12,000 2,500 10,900 <100 1,100
6/8/2017 ARMR 860 12,000 2,500 9,800 <100 840
12/22/2017 ARMR 1,100 17,000 2,200 9,900 <120 980
1 600 600 500 20 6
5,000 260,000 84,500 85,500 20,000 6,000
Notes:
1. "<" or ND = None detected above method detection limit.
2. NC 2L GW Standard = Title 15A NCAC 2L .0202 Groundwater Standard.
3. GCL = Gross Contaminant Level established by NCDEQ.
4. Values in BOLD indicate levels above 2L Groundwater Standards.
5. MTBE = Methyl tertiary butyl ether.
6. All concentrations in micrograms per liter (ug/L).
7. BDL = Below Detection Limit.
Not sampled; blockage at 21 ft
Not Sampled
MW-16
2L GW Standard
GCL
Not Sampled
Not Sampled
Not Sampled - Paved Over
Not Sampled
MW-17
Not Sampled
TABLE 6
HISTORICAL GROUNDWATER ANALYTICAL DATA
PANTRY #3079
5102 DORTCHES BOULEVARD
ROCKY MOUNT, NASH COUNTY, NORTH CAROLINA
NCDEQ FACILITY ID NO. 0-022631
NCDEQ INCIDENT NO. 4028
EthylbenzeneTotal XylenesAnalytical Methods:EPA METHOD 6010D or 6200B
WellDate SampledIncident PhaseNot Sampled - Free Product MTBENaphthaleneBenzeneToluene8/16/2001 pre-CAP 810 8,100 630 2,870 140 --
9/4/2002 CAP 63 370 50 158 <5 --
11/26/2002 CAP 56.9 157.3 117.8 237.4 <5 --
2/28/2003 ARMR 2,100 19,000 1,300 5,900 270 --
5/16/2003 ARMR 1,600 3,900 430 2,000 130 --
11/10/2003 ARMR 72 40 8.8 21.8 17 --
9/28/2004 ARMR 930 7,700 810 3,900 230 --
12/15/2004 ARMR 7.3 15.6 <1 18 7.9 --
2/23/2009 ARMR 550 5,100 900 3,700 230 180
7/28/2009 ARMR 3,700 20,000 1,700 8,000 600 110
2/17/2010 ARMR 1,600 30,000 2,700 13,000 3,800 1,400
7/9/2010 ARMR 3,000 17,000 1,800 8,800 670 510
3/7/2011 ARMR 88 550 165 730 18.7 36.5
7/21/2011 ARMR 2,720 11,800 1,240 5,440 294 269
3/21/2012 ARMR 26 84 99 300 1.9 20
11/18/2012 ARMR 640 2,900 1,400 4,900 20 330
4/8/2015 ARMR 2,570 9840 1830 7980 34.5 696
10/19/2015 ARMR 77.3 157 127 401 2.1 29.7
5/16/2016 ARMR 1,700 7,200 1,400 5,300 <100 360
12/29/2016 ARMR 5.1 5.0 22 26.8 <0.50 7.4
6/8/2017 ARMR 2.7 8.0 180 310 <0.50 49
12/22/2017 ARMR 1.2 1.9 2.6 19.0 0.51 8.2
8/16/2001 pre-CAP BDL 1.5 BDL BDL BDL --
9/4/2002 CAP <1 <1 <1 <3 <1 --
11/26/2002 CAP <0.5 <0.5 <0.5 <1.5 <1 --
2/28/2003 ARMR <1 <5 <1 <3 <5 --
5/16/2003 ARMR <1 <5 <1 <3 <5 --
11/10/2003 ARMR 1.5 <5 <1 <3 <1 --
9/28/2004 ARMR <1 <5 <1 <3 <1 --
12/15/2004 ARMR <1 <1 <1 <3 <1 --
2/23/2009 ARMR <0.2 <0.27 <0.2 <0.4 <0.38 <0.39
7/28/2009 ARMR <0.2 <0.27 <0.2 <0.4 <0.38 <0.39
2/17/2010 ARMR 0.47 3.2 0.9 3.1 <0.12 <0.086
7/9/2010 ARMR <0.05 <0.053 <0.1 <0.22 <0.12 <0.086
3/7/2011 ARMR <0.5 <0.5 <0.5 <1.5 <0.5 <2
7/21/2011 ARMR <0.5 <0.5 <0.5 <1.5 <0.5 <0.5
3/21/2012 ARMR <0.2 <0.2 <0.1 <0.3 <0.2 <0.2
11/17/2012 ARMR <0.3 <0.2 <0.2 <0.6 <0.2 <0.5
4/8/2015 ARMR <0.3 <0.2 <0.2 <0.6 <0.2 <0.5
10/19/2015 ARMR <0.25 <0.25 <0.25 <0.75 <0.25 <1.0
5/16/2016 ARMR
12/29/2016 ARMR
6/8/2017 ARMR
12/22/2017 ARMR
1 600 600 500 20 6
5,000 260,000 84,500 85,500 20,000 6,000
Notes:
1. "<" or ND = None detected above method detection limit.
2. NC 2L GW Standard = Title 15A NCAC 2L .0202 Groundwater Standard.
3. GCL = Gross Contaminant Level established by NCDEQ.
4. Values in BOLD indicate levels above 2L Groundwater Standards.
5. MTBE = Methyl tertiary butyl ether.
6. All concentrations in micrograms per liter (ug/L).
7. BDL = Below Detection Limit.
Well Not Sampled
Well Not Sampled
Well Not Sampled
Well Not Sampled
2L GW Standard
GCL
MW-18
MW-19
TABLE 6
HISTORICAL GROUNDWATER ANALYTICAL DATA
PANTRY #3079
5102 DORTCHES BOULEVARD
ROCKY MOUNT, NASH COUNTY, NORTH CAROLINA
NCDEQ FACILITY ID NO. 0-022631
NCDEQ INCIDENT NO. 4028
EthylbenzeneTotal XylenesAnalytical Methods:EPA METHOD 6010D or 6200B
WellDate SampledIncident PhaseNot Sampled - Free Product MTBENaphthaleneBenzeneToluene2/23/2009 ARMR 50 38 23 200 <1.9 210
7/28/2009 ARMR 110 110 490 560 <3.8 360
2/17/2010 ARMR 62 110 260 610 <0.6 120
7/9/2010 ARMR 110 140 330 860 <24 250
3/7/2011 ARMR 28 11 12 172 <0.5 55
7/21/2011 ARMR 38.5 26.8 58.8 216.8 3.1 75.6
3/21/2012 ARMR 73 81 240 470 <1 230
11/18/2012 ARMR
4/8/2015 ARMR
10/19/2015 ARMR
5/16/2016 ARMR
12/29/2016 ARMR
6/8/2017 ARMR
12/22/2017 ARMR
2/23/2009 ARMR 3,200 6,900 1,500 2,500 1,600 520
7/28/2009 ARMR 1,500 1,100 650 440 1,300 210
2/17/2010 ARMR 920 1,800 700 730 1,600 150
7/9/2010 ARMR 1,500 6,100 980 2,300 1,700 270
3/7/2011 ARMR 116 216 44.9 131.9 595 12.8
7/21/2011 ARMR 353 125 82.1 182.6 797 37.2
3/21/2012 ARMR 830 3,100 570 1,920 970 180
11/18/2012 ARMR
4/8/2015 ARMR
10/19/2015 ARMR
5/16/2016 ARMR
12/29/2016 ARMR
6/8/2017 ARMR
12/22/2017 ARMR
2/23/2009 ARMR 93 4.7 420 <4 480 300
3/13/2009 ARMR 68 3 290 <4 370 170
7/28/2009 ARMR 100 35 470 8.4 510 290
2/17/2010 ARMR 59 75 460 99 240 230
7/9/2010 ARMR 120 52 580 130 490 340
3/7/2011 ARMR 7.9 2 58.9 8 114 26.3
7/21/2011 ARMR 61.4 48.8 220 160.6 177 97.7
3/21/2012 ARMR
11/18/2012 ARMR
4/8/2015 ARMR
10/19/2015 ARMR
5/16/2016 ARMR
12/29/2016 ARMR
6/8/2017 ARMR
12/22/2017 ARMR
9/4/2002 CAP 29,000 34,000 2,800 16,200 160,000 --
11/26/2002 CAP
2/28/2003 ARMR
2/23/2009 ARMR
2/17/2010 ARMR
3/21/2012 ARMR 11,000 22,000 3,800 66,000 130,000 6,900
4/8/2015 ARMR
10/19/2015 ARMR
5/16/2016 ARMR
12/29/2016 ARMR
6/8/2017 ARMR
12/22/2017 ARMR
8/16/2001 pre-CAP BDL BDL BDL BDL BDL --
9/4/2002 pre-CAP <1 <1 <1 <3 <1 --
11/26/2002 pre-CAP <0.5 <0.5 <0.5 <1.5 <1 --
2/28/2003 ARMR <1 <5 <1 <3 <5 --
5/16/2003 ARMR <1 <5 <1 <3 <5 --
11/10/2003 ARMR <1 <5 <1 <3 <1 --
7/21/2004 ARMR <1 <5 <1 <3 <1 --
9/28/2004 ARMR <1 <5 <1 <3 <1 --
12/15/2004 ARMR <1 <1 <1 <3 <1 --
2/23/2009 ARMR
1 600 600 500 20 6
5,000 260,000 84,500 85,500 20,000 6,000
Notes:
1. "<" or ND = None detected above method detection limit.
2. NC 2L GW Standard = Title 15A NCAC 2L .0202 Groundwater Standard.
3. GCL = Gross Contaminant Level established by NCDEQ.
4. Values in BOLD indicate levels above 2L Groundwater Standards.
5. MTBE = Methyl tertiary butyl ether.
6. All concentrations in micrograms per liter (ug/L).
7. BDL = Below Detection Limit.
Well Not Sampled
Well Not Sampled
Well Not Sampled
Well Not Sampled
Well Not Sampled
Well Not Sampled
Well Not Sampled
Not Sampled - Unable to Locate
Not Sampled - Unable to Locate
Not Sampled - Unable to Locate
Not Sampled - Unable to Locate
Well Not Sampled
Well Not Sampled
Well Not Sampled
Well Not Sampled
Not Sampled - Unable to Locate
Well Not Sampled
WW-1
Well Not Sampled
Not Sampled
Not Sampled
Not Sampled
Not Sampled
Not Sampled - Unable to Locate
Well Not Sampled
Not Sampled - Unable to Locate
Not Sampled
Not Sampled - Unable to Locate
Not Sampled
Not Sampled
2L GW Standard
GCL
Not Sampled - Unable to Locate
Not Sampled - Unable to Locate
Not Sampled - Unable to Locate
Well Not Sampled
RW-1
MW-22
MW-21
MW-20

FIGURES
6
6

APPENDIX A
LABORATORY ANALYTICAL REPORT AND
CHAIN-OF-CUSTODY DOCUMENTS

Page 1 of 42
Table of Contents
Table of Contents
Sample Summary 3
Hits Only Report 4
Case Narrative 8
Sample Results 10
17L1085-01 10
17L1085-02 12
17L1085-03 14
17L1085-04 16
17L1085-05 18
17L1085-06 20
17L1085-07 22
17L1085-08 24
17L1085-09 26
Sample Preparation Information 28
QC Data 29
Volatile Organic Compounds by GC/MS 29
B194168 29
B194250 33
Flag/Qualifier Summary 37
Certifications 38
Chain of Custody/Sample Receipt 40
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