HomeMy WebLinkAboutWA-888_11759_CA_RPTS_20200804_MRP
3502 Hayes Road • Monroe, North Carolina 28110
113 West Firetower Road, Suite G • Winterville, North Carolina 28590
Phone (704) 845-4010 • (888) 870-4133 • Fax (704) 845-4012
August 4, 2020
Ms. Allison Ward
North Carolina Department of
Environmental Quality
Washington Regional Office
943 Washington Square Mall
Washington, North Carolina 27889
Re: Ground Water Monitoring Report
July 2020
Noah Roberson Store
8941 NC Highway 171
Williamston, Martin County,
North Carolina
Facility ID Number: 00-0-0000013970
Incident Number: 11759
GRI Project Number: 2319
Dear Ms. Ward,
Please find enclosed the referenced report for the above mentioned site.
If you have any questions, please contact William Regenthal at 704-845-4010.
Sincerely,
Geological Resources, Inc.
Leslie Maxtone-Graham
Administrative Assistant
Enclosure
Cc: Ms. Bea Harrison; Beasley Enterprises, Inc., file
3502 Hayes Road • Monroe, North Carolina 28110
113 West Firetower Road, Suite G • Winterville, North Carolina 28590
Phone (704) 845-4010 • (888) 870-4133 • Fax (704) 845-4012
Ground Water Monitoring Report
July 2020
Noah Roberson Store
8941 NC Highway 171
Williamston, Martin County
North Carolina
Facility ID Number: 00-0-0000013970
Incident Number: 11759
GRI Project Number: 2319
Prepared for:
North East Oil Company, Inc.
Post Office Box 1386
Ahoskie, North Carolina 27910
August 4, 2020
William Regenthal, P. G.
Project Manager
Ethan Rogerson, GIT
Report Writer
___________________________________________________________________________________________
Prepared by: Geological Resources, Inc. Ground Water Monitoring Report
Prepared on: August 4, 2020 Noah Roberson Store
Project Manager: William Regenthal, P. G. GRI Project No. 2319
i
SITE INFORMATION
1. Site Identification
Noah Roberson Store (Facility ID 00-0-0000013970)
Incident Number 11759 –High Risk (H140R)
Location of Source Area: 8941 NC Highway 171
Williamston, NC 27892
Martin County
35.7338099°N, 76.9793486°W (Topographical Map)
2. Information about Contacts Associated with the Leaking UST System
UST Owner
North East Oil Company, Inc.
Post Office Box 1386
Ahoskie, NC 27910
beah@bent-prises.com
252-862-0236
UST Operator
North East Oil Company, Inc.
Post Office Box 1386
Ahoskie, NC 27910
beah@bent-prises.com
252-862-0236
Property Owner
James A. and Bertie H. Hardison
3822 Piney Grove Church Road
Jamesville, NC 27846
Email Unknown
252-809-2770
Property Occupant
James A. and Bertie H. Hardison
3822 Piney Grove Church Road
Jamesville, NC 27846
Email Unknown
252-809-2770
Consultant/Contractor
Geological Resources, Inc.
3502 Hayes Road
Monroe, NC 28110
wlr@geologicalresourcesinc.com
704-845-4010
Analytical Laboratory
SGS North America, Inc.
4405 Vineland Road, Suite C-15
Orlando, FL 32811
State Certification No. 573
407-425-6700
3. Information about Release
Release was discovered on December 1993
An unknown amount of product was released from the leaking UST System
One 1,000-gallon gasoline and two 550-gallon gasoline USTs and associated pumps and product
piping were removed from the site in December 1993.
___________________________________________________________________________________________
Prepared by: Geological Resources, Inc. Ground Water Monitoring Report
Prepared on: August 4, 2020 Noah Roberson Store
Project Manager: William Regenthal, P. G. GRI Project No. 2319
ii
EXECUTIVE SUMMARY
The Noah Roberson Store site is located at 8941 NC Highway 171 in Williamston, Martin County, North
Carolina. The site is currently owned by James and Bertie Hardison and is currently closed. The site
formerly operated as a petroleum retail facility. According to available information, one 1,000-gallon
gasoline and two 550-gallon gasoline underground storage tanks (USTs) and associated pumps and
product piping were removed from the site in December 1993. The adjoining properties are residential
or agricultural properties. Public water is available to the site and surrounding properties within a 1,500-
foot radius of the site.
A Corrective Action Plan proposing a ground water pump and treat system was developed for the site.
This system was installed activated in March 1999. The remediation system was shut down between
January and September 2005 due to lack of funding from the NCDEQ UST Trust Fund. The remediation
system was restarted and operated at the site between July 2009 and January 2012.
On July 15, 2020, five monitoring wells and one water supply well were gauged, purged and sampled.
Monitoring wells MW-6 and MW-22 were not located. No free product was observed in the monitoring
wells prior to sampling. The Maximum Allowable Concentrations (MACs) as specified in T15A NCAC
2L.0202 were below the concentrations of benzene, xylenes, naphthalene, isopropylbenzene, n-
propylbenzene and/or 1,2,4-trimethylbenzene reported in the ground water samples collected from MW-
1, MW-3, MW-5, MW-12 and MW-13. All of the reported contaminant concentrations were below the
Gross Contamination Levels.
A Mann-Kendall plume stability analysis was completed for the site in July 2020. Overall, the contaminant
plume is generally stable or decreasing at the site. No trend could be established for xylenes and
naphthalene concentrations in MW-1 and MW-3, and naphthalene appears to be increasing in MW-13.
Contaminant mass at the site has decreased 48% between March 2012 and July 2020.
Based on this information, the site risk classification should be re-evaluated. In the meantime, semi-
annual ground water monitoring should continue at the site. The next sampling event is tentatively
scheduled for January 2021.
___________________________________________________________________________________________
Prepared by: Geological Resources, Inc. Ground Water Monitoring Report
Prepared on: August 4, 2020 Noah Roberson Store
Project Manager: William Regenthal, P. G. GRI Project No. 2319
TABLE OF CONTENTS
SITE INFORMATION ............................................................................................................................ i
EXECUTIVE SUMMARY ....................................................................................................................... ii
1.0 SITE HISTORY AND CHARACTERIZATION ...................................................................................1
2.0 PRESENTATION OF CURRENT SITE ASSESSMENT INFORMATION/ COMPARISON TO HISTORICAL
ASSESSMENT INFORMATION ...................................................................................................2
3.0 FREE PRODUCT REMOVAL ........................................................................................................4
4.0 NATURAL ATTENUATION / NATURAL SOURCE ZONE DEPLETION STATUS ..................................4
5.0 CONCLUSIONS .........................................................................................................................4
6.0 LIMITATIONS ...........................................................................................................................5
7.0 STATEMENTS AND CERTIFICATION ...........................................................................................5
FIGURES
Figure 1: Site Location Map
Figure 2: Site Map
Figure 3: Site Vicinity Map
Figure 4: Water Table Surface Map
Figure 5: Ground Water Quality Map
Figure 6: Contaminant Mass Area Map
TABLES
Table 1: UST Owner and Operator Information
Table 2: UST System Information
Table 3: Adjacent Property Owner Information
Table 4: Water Supply Well Information
Table 5: Well Construction and Gauging Information
Table 6: Summary of Ground Water Sample Analytical Results
APPENDICES
Appendix A: State Correspondence
Appendix B: Laboratory Report – Ground Water Samples
Appendix C: Contaminant Mass Calculations
Appendix D: GSI Mann-Kendall Toolkit for Constituent Trend Analysis
___________________________________________________________________________________________
Prepared by: Geological Resources, Inc. Ground Water Monitoring Report
Prepared on: August 4, 2020 Noah Roberson Store
Project Manager: William Regenthal, P. G. GRI Project No. 2319
1
1.0 SITE HISTORY AND CHARACTERIZATION
Geological Resources, Inc. (GRI) presents the results of the October 2019 ground water sampling event at
the Noah Roberson Store site; located at 8941 NC Highway 171 in Williamston, Martin County, North
Carolina (Figure 1). These activities were conducted in accordance with GRI Proposal No. 20-379, which
was submitted to the North Carolina Department of Environmental Quality (NCDEQ) on July 6, 2020, and
was approved as Task Authorization No. 11759-55 on July 9, 2020. NCDEQ correspondence associated
with the incident is included as Appendix A.
The site is currently owned by James A. and Bertie H. Hardison and is currently closed. The site formerly
operated as a petroleum retail facility. According to available information, one 1,000-gallon gasoline and
two 550-gallon gasoline underground storage tanks (USTs), associated pumps and product piping were
removed from the site in December 1993. UST owner/operator information and UST system information
are included as Tables 1 and 2, respectively. The Registered Tank Report is shown below:
The site and surrounding area are a mixture of residential and agricultural properties. The site contains
one building and is primarily capped with gravel and grass. The overall topography at the site is relatively
flat. Roadside and agricultural ditches were identified within a 500-foot radius of the site. Twenty-two
Type II monitoring wells (MW-1, MW-2, MW-3 and MW-5 through MW-23) and one Type III monitoring
well (MWD-4) were installed at the site during previous ground water assessment and corrective action
activities. Two recovery wells (RW-1 and RW-2) were also installed during corrective action
implementation activities. Two replacement monitoring wells (MW-8R and MW-16R) were installed in
order to replace previously destroyed wells MW-8 and MW-16.
Municipal water is available to the site and surrounding properties. An updated receptor survey was
conducted for this site in August 2014. One water supply well (WSW-1) was identified within a 250-foot
radius of the site. Two potable water supply wells (WSW-2 and WSW-4) were identified within a 1,000-
foot radius of the site. The owner of WSW-1 has refused to abandon their well on multiple occasions. A
___________________________________________________________________________________________
Prepared by: Geological Resources, Inc. Ground Water Monitoring Report
Prepared on: August 4, 2020 Noah Roberson Store
Project Manager: William Regenthal, P. G. GRI Project No. 2319
2
Site Map showing the locations of the monitoring wells and the structures on-site has been included as
Figure 2. A Site Vicinity Map showing the locations of water supply wells and property boundaries is
included as Figure 3. Adjacent property owner information is included in Table 3. Water supply well
information is presented in Table 4.
A Corrective Action Plan proposing the installation of a ground water pump and treat system was
developed for the site. This system was installed and activated in March 1999. The remediation system
was shut down between January and September 2005 due to lack of funding from the NCDEQ UST Trust
Fund. The remediation system was restarted and operated at the site between July 2009 and January
2012.
2.0 PRESENTATION OF CURRENT SITE ASSESSMENT INFORMATION/ COMPARISON TO HISTORICAL
ASSESSMENT INFORMATION
On July 15, 2020, five Type II monitoring wells (MW-1, MW-3, MW-5, MW-12 and MW-13) and one water
supply well (WSW-1) were gauged, purged and/or sampled. Monitoring wells MW-6 and MW-22 were
not located. Depths to ground water in the Type II monitoring wells ranged from 1.82 feet to 3.59 feet
below the tops of well casings. Ground water flow direction was generally toward the north with an
average hydraulic gradient of approximately 0.03 feet per foot. Well construction and gauging
information is presented in Table 5. A Water Table Surface Map based on the July 2020 gauging data is
included as Figure 4. A summary of the current ground water gauging data is shown below:
Well ID
Screened
Interval
(x to y ft.
BGS)
Bottom
of Well
(ft. BGS)
Top of
Casing
Elevation
(ft.)
Depth to
Water from
Top of Casing
(feet)
Free
Product
Thickness
(ft.)
Ground
Water
Elevation
(ft.)
MW-1 2-12 12 100.00 2.27 --- 97.73
MW-3 2-12 12 100.02 1.82 --- 98.20
MW-5 5-15 15 99.40 2.27 --- 97.13
MW-12 5-15 15 99.12 3.29 --- 95.83
MW-13 5-15 15 98.83 3.59 --- 95.24
Ground water samples collected from the monitoring wells were submitted for laboratory analyses using
EPA Method 6200B. The Maximum Allowable Concentrations (MACs) as specified in T15A NCAC 2L.0202
were below the concentrations of benzene, xylenes, naphthalene, isopropylbenzene, n-propylbenzene
and/or 1,2,4-trimethylbenzene reported in the ground water samples collected from MW-1, MW-5, MW-
12 and MW-13. All of the reported contaminant concentrations were below the Gross Contamination
Levels (GCLs). A summary of the analytical results for ground water samples collected on July 15, 2020, is
presented in Table 6. A Ground Water Quality Map based on the July 2020 data is included as Figure 5.
A complete report of laboratory analyses of the ground water samples collected from the monitoring wells
during the July 2020 sampling event has been included as Appendix B. A summary of the current ground
water analytical data is shown below:
___________________________________________________________________________________________
Prepared by: Geological Resources, Inc. Ground Water Monitoring Report
Prepared on: August 4, 2020 Noah Roberson Store
Project Manager: William Regenthal, P. G. GRI Project No. 2319
3
Contaminant
of Concern Benzene Toluene Ethylbenzene Xylenes MTBE Naphthalene Well
ID
MACs (mg/l) 1 600 600 500 20 6
GCL (mg/l) 5,000 260,000 84,500 85,500 20,000 6,000
MW-1 51.8 6.5 J 168 353 <2.5 74.1
MW-3 1.3 0.20 J 34.6 17.8 <0.13 23.0
MW-5 15.2 J <6.3 404 655 <6.3 299
MW-12 4.3 J <1.3 119 <2.5 <1.3 395
MW-13 21.5 <3.1 494 775 <3.1 300
WSW-1 <0.13 <0.13 <0.13 <0.25 <0.13 <0.13
The baseline contaminant mass at the site was determined based on the total BTEX, MTBE and
naphthalene concentrations from the March 2012 ground water sampling event as well as the maximum
historical water column height observed. The March 2012 sampling event was chosen since that event
was conducted following the January 2012 shutdown of the CAS at the site. Data indicates that the
contaminant mass has been reduced by 48% since 2012. Contaminant mass calculations have been
included as Appendix C. A map of the estimated contaminant mass area has been included as Figure 6.
A chart depicting the overall trend in contaminant mass is shown below:
0.00
200.00
400.00
600.00
800.00
1,000.00
1,200.00
Contaminant Mass (grams)Time
Total Contaminant Mass vs. Time
Noah Roberson Store (Incident No. 11759)
Contaminant Mass (grams)Linear (Contaminant Mass (grams))
___________________________________________________________________________________________
Prepared by: Geological Resources, Inc. Ground Water Monitoring Report
Prepared on: August 4, 2020 Noah Roberson Store
Project Manager: William Regenthal, P. G. GRI Project No. 2319
4
A Corrective Action Plan, proposing the installation of a ground water pump and treat system, was
submitted for the site on January 13, 1997. The corrective action system was installed and activated at
the site in March 1999. The remediation system was shut down between January and September 2005
due to lack of funding from the NCDEQ UST Trust Fund. The remediation system was restarted and
operated at the site between July 2009 and January 2012. No contaminant milestones were established
in the CAP.
A GSI Mann-Kendall Toolkit for Constituent Trend Analysis was prepared using historical concentrations
of benzene, xylenes and naphthalene in MW-1, MW-3, MW-5, MW-12 and MW-13 between the
September 2008 and July 2020 sampling events. No trend could be established for xylenes and
naphthalene concentrations in MW-1 and MW-3. The concentrations of benzene and xylenes are stable,
decreasing and/or probably decreasing in MW-1, MW-3, MW-5, MW-12 and MW-13. The concentrations
of naphthalene appear to be increasing in MW-13. Copies of each GSI Mann-Kendall Toolkit for
Constituent Trend Analysis used for benzene, xylenes and naphthalene are included as Appendix D.
The site is located in the Coastal Plain Physiographic Province of North Carolina. The water table has a
seasonal high depth to water of approximately 1 to 16 feet below ground surface (bgs).
3.0 FREE PRODUCT REMOVAL
Historically free product has not been observed at the site. Between August 2010 and December 2012,
two MMPE events have been conducted at the site.
4.0 NATURAL ATTENUATION / NATURAL SOURCE ZONE DEPLETION STATUS
No natural attenuation monitoring plan is currently in place at the site.
5.0 CONCLUSIONS
On July 15, 2020, five Type II monitoring wells and one water supply well were gauged, purged
and/or sampled. Ground water flow direction was generally toward the north with an average
hydraulic gradient of approximately 0.03 feet per foot.
The MACs were below the concentrations of benzene, xylenes, naphthalene, isopropylbenzene,
n-propylbenzene and/or 1,2,4-trimethylbenzene reported in the ground water samples collected
from MW-1, MW-3, MW-5, MW-12 and MW-13. All of the reported contaminant concentrations
were below the GCLs.
The contaminant mass at the site has been reduced by 48% since the CAS was shut down in
January 2012. The remediation system should be removed from the site.
A Mann-Kendall plume stability analysis was completed for the site in July 2020. Overall, the
contaminant plume is generally stable or decreasing at the site. No trend could be established
for xylenes and naphthalene concentrations in MW-1 and MW-3, and naphthalene appears to be
increasing in MW-13. Contaminant mass at the site has decreased 48% between March 2012 and
July 2020.
___________________________________________________________________________________________
Prepared by: Geological Resources, Inc. Ground Water Monitoring Report
Prepared on: August 4, 2020 Noah Roberson Store
Project Manager: William Regenthal, P. G. GRI Project No. 2319
5
Based on this information, the site risk classification should be re-evaluated. In the meantime,
semi-annual ground water monitoring should continue at the site. The next sampling event is
tentatively scheduled for January 2021.
6.0 LIMITATIONS
This report has been prepared for the exclusive use of North East Oil Company, Inc. for specific application
to the referenced site in Martin County, North Carolina. The assessment was conducted based on the
scope of work and level of effort desired by NCDEQ and with resources adequate only for that scope of
work. Our findings have been developed in accordance with generally accepted standards of
environmental practices in the State of North Carolina, available information, and our professional
judgment. No other warranty is expressed or implied.
The data that are presented in this report are indicative of conditions that existed at the precise locations
sampled and at the time the samples were collected. In addition, the data obtained from samples would
be interpreted as being meaningful with respect to parameters indicated in the laboratory report. No
additional information can logically be inferred from these data.
7.0 STATEMENTS AND CERTIFICATION
1 Enter the date the monitoring report was due. N/A Will this report be submitted after the
established due date?
YES NO
2 Was any required information from the above template missing from this report? YES NO
IF the answer to question #1 or# 2 is “YES”, please provide additional information in this cell to explain
what was missing and why.
3 If applicable, will any of the proposed attenuation milestones under the schedule approved
in the Corrective Action Plan not be met? (within a reasonable margin of error)
YES NO
IF the answer to question #3 is “NO”, skip to the certification under #8 below.
IF the answer to question #3 is “YES”, please generally describe in this cell the possible reason(s) and
outline proposed remedies. (This should be described in more detail in the report text above.)
N/A
4 Does any known or suspected source zone soil contamination or free product remain
outside of the assessed area that could be inhibiting natural attenuation?
YES NO
5 Has there been an unexpected increase in contaminant mass sufficient to suggest a
potential new release from a separate onsite or offsite source?
YES NO
IF the answer to either question #4 or #5 is “YES”, generally describe in this cell any actions
recommended to further assess or clean up this known or suspected source. (This should be described
in more detail in the report text above.)
FIGURES
"J
"J
"J
"J
"J
"J
!H
!H
!H
!U
!U
!U
SITE
0300936
0300549
0300909
0301178
0300472
0300924
0300150
0300485
0300132
0300616
0300637
0300551
0301280
0300910
WSW-8
WSW-7
WSW-3
WSW-6
WSW-5
WSW-1 (Former DW-1)
HARDISON MILL CREEK
NC 171 HWYNOAH ROBERSON RD
PINEY GROVE CHURCH RD
DEWEY
HARDI
SON RDWSW-9
WSW-4
WSW-2
WSW-12
WSW-11
WSW-10
³
0 300150Feet
1 inch = 300 feet
FIGURE 3: SITE VICINITY MAPNOAH ROBERSON STORE8941 NC HIGHWAY 171WILLIAMSTON, MARTIN COUNTYNORTH CAROLINAINCIDENT NO. 11759
PREPARED BY:GEOLOGICAL RESOURCES, INC.SEPTEMBER 21, 2008UPDATED: AUGUST 13, 2014
1,500-FOOT RADIUS
1,000-FOOT RADIUS
250-FOOT RADIUS
NOTE:Based on Martin County, NC GIS Website.
LEGEND
"J Water Supply Well (Potable)
!U Water Supply Well (Non-potable)
!H Water Supply Well (Inactive)
Parcels
Centerlines
ncrivers
0300551 Parcel ID Number
TABLES
UST ID Number 1 Facility ID Number
Owner or Operator?
Owner/Operator
UST ID Number 2 Facility ID Number
Owner or Operator?
Owner/Operator
UST ID Number 3 Facility ID Number
Owner or Operator?
Owner/Operator
PO Box 1386, Ahoskie, NC 27910 252-862-0236
Name of Owner or Operator Dates of Ownership / Operation
E T Seven Inc.03/30/68 - 12/21/93
Address Telephone Number
Address Telephone Number
PO Box 1386, Ahoskie, NC 27910 252-862-0236
0-013970
0-013970
Name of Owner or Operator Dates of Ownership / Operation
E T Seven Inc.03/27/83 - 12/21/93
PO Box 1386, Ahoskie, NC 27910 252-862-0236
Telephone Number
TABLE 1
UST OWNER/OPERATOR INFORMATION
NOAH ROBERSON STORE (INCIDENT NO. 11759)
0-013970
Name of Owner or Operator Dates of Ownership / Operation
E T Seven Inc.03/30/71 - 12/21/93
Address
Page 1 of 1
Date: 10/22/19
Was Release
Associated
with UST
System?
(Yes / No)
1 Gasoline 1,000 03/30/1971 Single Wall Steel 64" x 72"Single Wall Steel Removed
(12/21/1993)Yes
2 Gasoline 500 03/27/1983 Single Wall Steel 46" x 74"Single Wall Steel Removed
(12/21/1993)Yes
3 Kerosene 500 03/30/1968 Single Wall Steel 46" x 74"Single Wall Steel Removed
(12/21/1993)Yes
TABLE 2
UST SYSTEM INFORMATION
NOAH ROBERSON STORE (INCIDENT NO. 11759)
Facility ID # : 0-013970
Status
of
UST
UST
ID
No.
Current
or Most
Recent
Contents
Capacity
(gallons)
Date
Installed
Construction
Details
Tank
Dimensions
Description of
Associated
Product Piping
and
Pumps
Page 1 of 1
Date: 08/13/14 Facility ID#: 0-013970
William M. and Reba Harrington
Carolina Telephone
Note:
• Properties are keyed to Figure 3.
0300551 (Site)Tom B. and Edna Tice 1515 Tice Road
Williamston, NC 27892-91490300549
0300909 4256 Piney Grove Church Road
Jamesville, NC 27846-9445
0300910 Post Office Box 7909
Overland Park, KS 66207-0909
TABLE 3
ADJACENT PROPERTY OWNERS/OCCUPANTS
NOAH ROBERSON STORE (INCIDENT NO. 11759)
Tax Parcel Number/ Map ID Owner Name
(Last, First MI)Address
Date: 08/13/14 Facility ID#: 13970
Well ID.Parcel ID No.Well Owner Address Municipal Water
Connected
Well Use
(Potable/
Agricultural, etc.)
Well
Depth
(ft. BGS)
Type of Well
(Drilled/
Bored)
Well Casing
Depth
(ft. BGS)
Well Screen
Interval
(x to y ft. BGS)
Distance from
source area of
release (ft.)
WSW-1 (Former
DW-1)0300551 No Inactive NA NA NA NA ~70' E
WSW-5 Yes Inactive NA NA NA NA ~670' SE
WSW-6 Yes Inactive NA NA NA NA ~750' E
WSW-2 0300472 No Potable NA NA NA NA ~770' N
WSW-4 0300936 No Potable NA NA NA NA ~870' N
WSW-3 0300132 Randy L. and Edith Hardison 4105 Piney Grove Church Road
Jamesville, NC 27846-9444 Yes Non-Potable NA NA NA NA ~680' NW
WSW-7 0300485 Yes Non-Potable NA NA NA NA ~670' S
WSW-8 0300616 Yes Non-Potable NA NA NA NA ~880' S
WSW-9 0300150 Sue Gurganus Harrington 9165 NC Highway 171
Williamston, NC 27892 No Potable NA NA NA NA ~1,240' S
WSW-10 0300637 William M. and Reba R. Harrington 4256 Piney Grove Church Road
Jamesville, NC 27846-9445 No Potable NA NA NA NA ~1,060' W
WSW-11 0301178 William M., Jr. and Stacy B. Harrington 4236 Piney Grove Church Road
Jamesville, NC 27846-9445 No Potable NA NA NA NA ~1,240' W
WSW-12 0300924 Matthew F. and Hollie M. Lilley 9150 NC Highway 171
Williamston, NC 27892 No Potable NA NA NA NA ~1,140' SW
• NA: Data not available.
• ft. BGS: Feet below ground surface.
• Inactive: Well is not currently being used either due to vacant property (no power to well) or disconnected pump.
• Water supply wells are keyed to Figure 3.
TABLE 4
WATER SUPPLY WELL INFORMATION
NOAH ROBERSON STORE (INCIDENT NO. 11759)
Tom B. and Edna Tice 1515 Tice Road
Williamston, NC 27892-91490300549
Rachel R. Perry 8817 NC Highway 171
Williamston, NC 27892
Sherry Rawls 9111 NC Highway 171
Williamston, NC 27892
Notes:
09/24/08 4.35 0.00 95.65
09/03/09 2.00 0.00 98.00
12/21/09 1.61 0.00 98.39
03/24/10 1.70 0.00 98.30
08/30/10 4.54 0.00 95.46 Before MMPE
09/03/10 11.87 0.00 88.13 After MMPE
09/27/10 6.18 0.00 93.82
03/23/11 2.07 0.00 97.93
09/28/11 1.40 0.00 98.60
03/27/12 1.80 0.00 98.20
12/10/12 2.42 0.00 97.58 Before MMPE
12/14/12 10.92 0.00 89.08 After MMPE
01/21/13 1.67 0.00 98.33
07/17/13 1.05 0.00 98.95
01/23/14 1.72 0.00 98.28
07/22/14 1.30 0.00 98.70
04/21/15 1.16 0.00 98.84
01/12/16 1.81 0.00 98.19
10/05/16 2.42 0.00 97.58
07/03/17 2.04 0.00 97.96
01/08/19 1.92 NM 98.08
10/03/19 3.90 0.00 96.10
07/15/20 2.27 0.00 97.73
09/24/08 4.00 0.00 96.14
09/03/09 1.90 0.00 98.24
12/21/09 1.34 0.00 98.80
03/24/10 1.64 0.00 98.50
09/27/10 4.80 0.00 95.34
03/23/11 1.78 0.00 98.36
09/28/11 1.07 0.00 99.07
03/27/12 1.13 0.00 99.01
01/21/13 1.62 0.00 98.52
07/17/13 1.07 0.00 99.07
01/23/14 1.58 0.00 98.56
07/22/14 1.00 0.00 99.14
04/21/15 0.92 0.00 99.22
01/12/16 1.70 0.00 98.44
09/24/08 4.38 0.00 95.64
09/03/09 2.00 0.00 98.02
12/21/09 1.30 0.00 98.72
03/24/10 1.39 0.00 98.63
08/30/10 4.68 0.00 95.34 Before MMPE
09/03/10 9.28 0.00 90.74 After MMPE
09/27/10 5.85 0.00 94.17
03/23/11 1.95 0.00 98.07
09/28/11 1.15 0.00 98.87
03/27/12 1.30 0.00 98.72
01/21/13 1.40 0.00 98.62
07/17/13 1.13 0.00 98.89
01/23/14 1.43 0.00 98.59
07/22/14 0.98 0.00 99.04
04/21/15 0.93 0.00 99.09
01/12/16 1.54 0.00 98.48
10/05/16 2.63 0.00 97.39
07/03/17 2.02 0.00 98.00
07/15/20 1.82 0.00 98.20
09/24/08 14.84 0.00 84.98
09/03/09 10.60 0.00 89.22
12/21/09 7.96 0.00 91.86
03/24/10 8.23 0.00 91.59
09/27/10 15.82 0.00 84.00
03/23/11 9.32 0.00 90.50
09/28/11 8.70 0.00 91.12
03/27/12 7.91 0.00 91.91
01/21/13 8.08 0.00 91.74
07/17/13 8.60 0.00 91.22
01/23/14 8.16 0.00 91.66
07/22/14 10.16 0.00 89.66
04/21/15 7.70 0.00 92.12
01/12/16 7.83 0.00 91.99
MWD-4 10/23/95 19 19 - 24 24 99.82
100.00
MW-2 04/12/94 2 2 - 12 12 100.14
100.02122 - 12204/12/94MW-3
122 - 12204/11/94MW-1
TABLE 5
WELL CONSTRUCTION INFORMATION
NOAH ROBERSON STORE (INCIDENT NO. 11759)
Date: 7/24/2020 Facility ID#: 0-013970
Top of
Casing
Elevation*
(ft.)
Depth to
Ground
Water
from Top
of Casing
(ft.)
Free
Product
Thickness**
(ft.)
Ground
Water
Elevation*
(ft.)
Comments
Well
ID
Date
Installed
(mm/dd/yy)
Date
Water
Level
Measured
(mm/dd/yy)
Well
Casing
Depth
(ft. BGS)
Screened
Interval
(x to y
ft. BGS)
Bottom
of Well
(ft.
BGS)
Page 1 of 5
TABLE 5
WELL CONSTRUCTION INFORMATION
NOAH ROBERSON STORE (INCIDENT NO. 11759)
Date: 7/24/2020 Facility ID#: 0-013970
Top of
Casing
Elevation*
(ft.)
Depth to
Ground
Water
from Top
of Casing
(ft.)
Free
Product
Thickness**
(ft.)
Ground
Water
Elevation*
(ft.)
Comments
Well
ID
Date
Installed
(mm/dd/yy)
Date
Water
Level
Measured
(mm/dd/yy)
Well
Casing
Depth
(ft. BGS)
Screened
Interval
(x to y
ft. BGS)
Bottom
of Well
(ft.
BGS)
09/24/08 5.93 0.00 93.47
09/03/09 4.15 0.00 95.25
12/21/09 2.12 0.00 97.28
03/24/10 1.75 0.00 97.65
08/30/10 4.98 0.00 94.42 Before MMPE
09/03/10 11.11 0.00 88.29 After MMPE
09/27/10 10.56 0.00 88.84
03/23/11 2.95 0.00 96.45
09/28/11 1.47 0.00 97.93
03/27/12 1.65 0.00 97.75
12/10/12 2.83 0.00 96.57 Before MMPE
12/14/12 12.89 0.00 86.51 After MMPE
01/21/13 1.72 0.00 97.68
07/17/13 1.91 0.00 97.49
01/23/14 1.86 0.00 97.54
07/22/14 1.40 0.00 98.00
04/21/15 1.15 0.00 98.25
01/12/16 1.53 0.00 97.87
10/05/16 1.81 0.00 97.59
07/03/17 1.78 0.00 97.62
01/08/19 1.60 NM 97.80
10/03/19 3.04 0.00 96.36
07/15/20 2.27 0.00 97.13
09/24/08 9.99 0.00 89.43
09/03/09 5.35 0.00 94.07
12/21/09 4.41 0.00 95.01
03/24/10 4.40 0.00 95.02
09/27/10 13.17 0.00 86.25
03/23/11 3.79 0.00 95.63
09/28/11 4.51 0.00 94.91
03/27/12 3.35 0.00 96.07
01/21/13 2.86 0.00 96.56
07/17/13 3.84 0.00 95.58
01/23/14 3.79 0.00 95.63
07/22/14 3.16 0.00 96.26
04/21/15 2.83 0.00 96.59
01/12/16 2.91 0.00 96.51
10/05/16 3.62 0.00 95.80
07/03/17 3.48 0.00 95.94
07/15/20 NM NM NM Could not locate
09/24/08 5.32 0.00 94.27
09/03/09 2.40 0.00 97.19
12/21/09 0.95 0.00 98.64
03/24/10 1.38 0.00 98.21
09/27/10 7.65 0.00 91.94
03/23/11 NM NM NM
09/28/11 NM NM NM
01/21/13 NM NM NM
07/22/14 NM NM NM
09/03/09 Destroyed Destroyed Destroyed
12/21/09 2.10 0.00 99.28
03/24/10 2.66 0.00 98.72
09/27/10 3.83 0.00 97.55
03/23/11 3.05 0.00 98.33
09/28/11 1.12 0.00 100.26
03/27/12 1.93 0.00 99.45
01/21/13 2.22 0.00 99.16
07/17/13 2.05 0.00 99.33
01/23/14 2.23 0.00 99.15
07/22/14 2.40 0.00 98.98
04/21/15 1.73 0.00 99.65
01/12/16 2.48 0.00 98.90
09/24/08 8.70 0.00 91.80
09/03/09 2.51 0.00 97.99
12/21/09 1.60 0.00 98.90
03/24/10 2.50 0.00 98.00
09/27/10 14.59 0.00 85.91
03/23/11 3.90 0.00 96.60
09/28/11 3.37 0.00 97.13
03/27/12 2.77 0.00 97.73
01/21/13 1.34 0.00 99.16
07/17/13 1.61 0.00 98.89
01/23/14 2.03 0.00 98.47
07/22/14 1.88 0.00 98.62
04/21/15 1.58 0.00 98.92
MW-9 10/23/95 5 5 - 15 15 100.50
MW-8R 07/08/09 5 5 - 15 15 101.38
MW-7 10/23/95 2 2 - 12 12 99.59
155 - 15510/25/95MW-6 99.42
99.40155 - 15510/25/95MW-5
Page 2 of 5
TABLE 5
WELL CONSTRUCTION INFORMATION
NOAH ROBERSON STORE (INCIDENT NO. 11759)
Date: 7/24/2020 Facility ID#: 0-013970
Top of
Casing
Elevation*
(ft.)
Depth to
Ground
Water
from Top
of Casing
(ft.)
Free
Product
Thickness**
(ft.)
Ground
Water
Elevation*
(ft.)
Comments
Well
ID
Date
Installed
(mm/dd/yy)
Date
Water
Level
Measured
(mm/dd/yy)
Well
Casing
Depth
(ft. BGS)
Screened
Interval
(x to y
ft. BGS)
Bottom
of Well
(ft.
BGS)
09/24/08 4.10 0.00 95.62
09/03/09 2.00 0.00 97.72
12/21/09 1.63 0.00 98.09
03/24/10 1.87 0.00 97.85
09/27/10 5.08 0.00 94.64
03/23/11 2.07 0.00 97.65
09/28/11 1.03 0.00 98.69
03/27/12 1.40 0.00 98.32
01/21/13 1.69 0.00 98.03
07/17/13 1.28 0.00 98.44
01/23/14 1.78 0.00 97.94
07/22/14 1.06 0.00 98.66
04/21/15 1.14 0.00 98.58
09/24/08 5.20 0.00 93.92
09/03/09 3.00 0.00 96.12
12/21/09 2.05 0.00 97.07
03/24/10 2.35 0.00 96.77
08/30/10 4.67 0.00 94.45 Before MMPE
09/03/10 14.32 0.00 84.80 After MMPE
09/27/10 7.20 0.00 91.92
03/23/11 2.64 0.00 96.48
09/28/11 1.83 0.00 97.29
03/27/12 1.67 0.00 97.45
01/21/13 2.41 0.00 96.71
07/17/13 2.22 0.00 96.90
01/23/14 2.48 0.00 96.64
07/22/14 NM NM NM
04/21/15 NM NM NM Not Found
01/08/19 2.40 NM 96.72
10/03/19 4.68 0.00 94.44
07/15/20 3.29 0.00 95.83
09/24/08 6.73 0.00 92.10
09/03/09 3.64 0.00 95.19
12/21/09 2.03 0.00 96.80
03/24/10 2.41 0.00 96.42
09/27/10 6.75 0.00 92.08
03/23/11 2.73 0.00 96.10
09/28/11 3.11 0.00 95.72
03/27/12 2.17 0.00 96.66
01/21/13 2.43 0.00 96.40
07/17/13 2.52 0.00 96.31
01/23/14 2.40 0.00 96.43
07/22/14 2.57 0.00 96.26
04/21/15 2.18 0.00 96.65
01/12/16 2.39 0.00 96.44
10/05/16 3.44 0.00 95.39
07/03/17 3.05 0.00 95.78
01/08/19 2.39 NM 96.44
10/03/19 5.64 0.00 93.19
07/15/20 3.59 0.00 95.24
09/24/08 5.40 0.00 93.38
09/03/09 2.95 0.00 95.83
12/21/09 2.40 0.00 96.38
03/24/10 2.87 0.00 95.91
09/27/10 7.34 0.00 91.44
03/23/11 2.73 0.00 96.05
09/28/11 2.50 0.00 96.28
03/27/12 2.13 0.00 96.65
01/21/13 2.71 0.00 96.07
07/17/13 2.54 0.00 96.24
01/23/14 2.90 0.00 95.88
07/22/14 2.03 0.00 96.75
04/21/15 2.55 0.00 96.23
01/12/16 2.83 0.00 95.95
09/24/08 4.71 0.00 94.12
09/03/09 2.93 0.00 95.90
12/21/09 2.05 0.00 96.78
03/24/10 2.30 0.00 96.53
09/27/10 8.48 0.00 90.35
03/23/11 2.27 0.00 96.56
09/28/11 Destroyed Destroyed Destroyed
MW-16 07/09/98 09/24/08 5 5 - 15 15 99.23 DRY DRY DRY
MW-15 07/09/98 5 5 - 15 15 98.83
MW-10 10/24/95 5 5 - 15 15 99.72
MW-14 07/08/98 3 3 - 13 13 98.78
98.83155 - 15510/25/95MW-13
99.12155 - 15510/25/95MW-12
Page 3 of 5
TABLE 5
WELL CONSTRUCTION INFORMATION
NOAH ROBERSON STORE (INCIDENT NO. 11759)
Date: 7/24/2020 Facility ID#: 0-013970
Top of
Casing
Elevation*
(ft.)
Depth to
Ground
Water
from Top
of Casing
(ft.)
Free
Product
Thickness**
(ft.)
Ground
Water
Elevation*
(ft.)
Comments
Well
ID
Date
Installed
(mm/dd/yy)
Date
Water
Level
Measured
(mm/dd/yy)
Well
Casing
Depth
(ft. BGS)
Screened
Interval
(x to y
ft. BGS)
Bottom
of Well
(ft.
BGS)
09/03/09 9.12 0.00 90.21
12/21/09 5.33 0.00 94.00
03/24/10 6.70 0.00 92.63
09/27/10 14.52 0.00 84.81
03/23/11 7.34 0.00 91.99
09/28/11 7.53 0.00 91.80
03/27/12 6.12 0.00 93.21
01/21/13 6.38 0.00 92.95
07/17/13 7.21 0.00 92.12
01/23/14 6.30 0.00 93.03
07/22/14 7.60 0.00 91.73
04/21/15 6.26 0.00 93.07
09/24/08 11.22 0.00 87.32
09/03/09 6.38 0.00 92.16
12/21/09 2.84 0.00 95.70
03/24/10 3.41 0.00 95.13
09/27/10 3.10 0.00 95.44
03/23/11 3.97 0.00 94.57
09/28/11 3.55 0.00 94.99
03/27/12 2.13 0.00 96.41
01/21/13 2.88 0.00 95.66
07/17/13 3.03 0.00 95.51
01/23/14 2.80 0.00 95.74
07/22/14 1.76 0.00 96.78
04/21/15 1.60 0.00 96.94
01/12/16 2.66 0.00 95.88
09/03/09 12.25 0.00 90.57
12/21/09 9.74 0.00 93.08
03/24/10 10.11 0.00 92.71
09/27/10 18.08 0.00 84.74
03/23/11 10.94 0.00 91.88
09/28/11 10.87 0.00 91.95
03/27/12 NM NM NM
01/21/13 NM NM NM
09/03/09 Destroyed Destroyed Destroyed
12/21/09 Destroyed Destroyed Destroyed
09/03/09 Destroyed Destroyed Destroyed
12/21/09 Destroyed Destroyed Destroyed
09/03/09 7.10 0.00 92.55
12/21/09 5.14 0.00 94.51
03/24/10 4.97 0.00 94.68
09/27/10 14.70 0.00 84.95
03/23/11 5.44 0.00 94.21
09/28/11 6.77 0.00 92.88
03/27/12 4.63 0.00 95.02
01/21/13 4.95 0.00 94.70
07/17/13 4.84 0.00 94.81
01/23/14 4.99 0.00 94.66
07/22/14 6.23 0.00 93.42
04/21/15 4.42 0.00 95.23
01/12/16 4.90 0.00 94.75
09/03/09 8.03 0.00 91.25
12/21/09 5.92 0.00 93.36
03/24/10 6.08 0.00 93.20
09/27/10 14.50 0.00 84.78
03/23/11 6.80 0.00 92.48
09/28/11 9.33 0.00 89.95
03/27/12 7.14 0.00 92.14
01/21/13 7.16 0.00 92.12
07/17/13 7.25 0.00 92.03
01/23/14 6.59 0.00 92.69
07/22/14 7.15 0.00 92.13
04/21/15 6.64 0.00 92.64
01/12/16 5.88 0.00 93.40
10/05/16 6.97 0.00 92.31
07/03/17 7.25 0.00 92.03
07/15/20 NM NM NM Could not locate
09/28/11 2.56 0.00 95.47
03/27/12 2.16 0.00 95.87
01/21/13 2.30 0.00 95.73
07/17/13 1.16 0.00 96.87
01/23/14 2.53 0.00 95.50
07/22/14 2.33 0.00 95.70
04/21/15 2.13 0.00 95.90
01/12/16 2.32 0.00 95.71
MW-23 09/28/11 2 2 - 12 12 98.03
MW-21 07/09/09 5 5 - 15 15 99.65
99.28155 - 155MW-22 07/08/09
MW-20 07/08/09 5 5 - 15 15 Destroyed
MW-19 07/08/09 5 5 - 15 15 Destroyed
MW-18 07/08/09 5 5 - 15 15 102.82
MW-17 07/09/98 5 5 - 15 15 98.54
MW-16R 07/08/09 5 5 - 15 15 99.33
Page 4 of 5
TABLE 5
WELL CONSTRUCTION INFORMATION
NOAH ROBERSON STORE (INCIDENT NO. 11759)
Date: 7/24/2020 Facility ID#: 0-013970
Top of
Casing
Elevation*
(ft.)
Depth to
Ground
Water
from Top
of Casing
(ft.)
Free
Product
Thickness**
(ft.)
Ground
Water
Elevation*
(ft.)
Comments
Well
ID
Date
Installed
(mm/dd/yy)
Date
Water
Level
Measured
(mm/dd/yy)
Well
Casing
Depth
(ft. BGS)
Screened
Interval
(x to y
ft. BGS)
Bottom
of Well
(ft.
BGS)
RW-1 07/08/98 09/24/08 5 5 - 30 30 99.27 14.85 0.00 84.42
Notes:
• **: If free product is present in a well, ground water elevation should be calculated by: (Top of Casing Elevation - Depth to Water) +
(Free Product thickness x 0.8581)
• Monitoring wells MW-8R, MW-18, MW-19 and MW-20 were each installed with 4-feet of stand up casing.
• Top-of-casing elevations for monitoring wells MW-16R, MW-18, MW-21 and MW-22 were surveyed by GRI personnel on 9/29/09.
• Monitoring well MW-8R was repaired during the December 2009 event. Top-of-casing elevation for MW-8R was subsequently resurveyed by GRI personnel.
• Please note that monitoring wells MW-8R, MW-19 and MW-20 which were installed on 07/08/09 were found to be destroyed during a
subsequent site
• NM: Not Measured.
• *: Top-of-casing elevation and well construction data are reproduced from the Semi-Annual Groundwater Monitoring Report dated
January 3, 2006 and well construction records obtained during the file review; assumed elevation 100.00 ft.
• ft BGS: feet below ground surface
Page 5 of 5
Date: 7/24/2020 Facility ID #: 0-013970
EPA
Method
6010B
Well
ID
Date
Collected
(mm/dd/yy)
1 600 600 500 20 6 70 70 70 0.4 70 70 70 400 400 6 3 15 400 700 10,000 200
5,000 260,000 84,500 85,500 20,000 6,000 6,900 8,500 15,000 400 25,000 70,000 30,000 28,500 25,000 6,000 170 15,000 NE NE NE NE
09/24/08 114 40.7 425 905 <1.2 164 5.10 I <4.7 <2.2 3.50 I 34.4 6.40 I 63.9 629 217 NR NR 9.05 4,900 <1,000 NR 2,400
09/03/09 104 26.5 320 498 <1.25 178 <0.900 <0.700 <0.950 <1.10 34.2 <1.00 59.1 588 216 101 <7.35 2.59 J 3,140 2,331 <105 3,122
12/21/09 168 18.9 281 271 <0.500 106 <0.360 5.50 1.06 J 5.75 33.0 6.99 57.8 499 137 NR NR NR NR NR NR NR
03/24/10 123 24.2 245 556 <2.50 82.8 10.2 4.87 J <1.90 5.00 J 19.1 6.08 J 26.0 465 59.1 47.0 NR 3.33 NR NR NR NR
09/27/10 72.3 16.0 98.0 183 1.05 J 16.4 <0.360 0.406 J 0.802 J 5.74 5.45 10.4 7.24 70.8 19.5 NR NR NR NR NR NR NR
03/23/11 62.3 <5.00 78.8 51.4 <1.25 26.1 <0.900 2.90 J <0.950 2.26 J 8.74 2.82 J 15.4 145 1.87 J NR NR NR NR NR NR NR
09/28/11 8.2 2.4 20.5 68.3 <0.13 36.8 2.2 2.4 0.47 J 0.27 J 8.1 <0.11 12.0 125 23.3 NR NR NR NR NR NR NR
03/27/12 120 7.4 166 187.6 <0.13 53.5 3.9 3.6 0.63 5.1 22.8 6.0 38.2 201 27.7 NR NR NR NR NR NR NR
01/21/13 129 4.7 133 89.4 <0.10 34.2 1.3 1.5 0.47 J 4.5 13.0 5.4 20.3 114 27.1 NR NR NR NR NR NR NR
07/17/13 22.9 10.6 191 319 <0.10 96.3 8.0 6.1 0.87 0.70 41.5 1.3 65.3 385 59.9 NR NR NR NR NR NR NR
01/23/14 49.4 13.8 326 598 <0.10 104 6.8 6.0 0.92 1.5 55.5 <0.10 105 734 175 NR NR NR NR NR NR NR
07/22/14 121 12.5 273 440 <2.0 105 5.9 J 5.6 J <2.0 4.7 J 44.7 6.6 J 97.5 641 146 NR NR NR NR NR NR NR
04/21/15 35.3 18.8 278 597 <1.6 82.5 7.8 6.1 <1.5 <1.6 42.7 1.8 J 99.8 684 164 NR NR NR NR NR NR NR
01/12/16 132 12.9 404 901 <0.13 177 10 7.5 <0.13 4.1 81.1 5.7 165 1,030 274 NR NR NR NR NR NR NR
10/05/16 25.2 15.0 335 1,000 <2.5 143 8.6 J 7.7 J <2.5 <2.5 65.1 <2.5 155 1,120 328 NR NR NR NR NR NR NR
07/03/17 123 6.8 322 608 <1.3 134 10.1 8.2 <1.3 <1.3 76.8 6.2 167 1,070 269 NR NR NR NR NR NR NR
01/08/19 37.5 2.2 J 63.7 103 <0.63 44.1 2.1 J 2.7 <0.63 1.4 J 11.3 1.6 J 15.8 273 86.8 NR NR NR NR NR NR NR
10/03/19 50.1 6.1 223 376 <1.3 73.5 3.3 J 3.3 J <1.3 1.6 J 33 2.1 J 69.3 566 142 NR NR NR NR NR NR NR
07/15/20 51.8 6.5 J 168 353 <2.5 74.1 4.5 J 4.5 J <2.5 <2.5 30.4 <2.5 80.2 749 181 NR NR NR NR NR NR NR
09/24/08 <0.31 <0.28 0.720 I 1.64 <0.12 0.790 I <0.39 <0.47 <0.22 <0.12 0.870 I <0.15 0.560 I 1.41 0.270 I NR NR <2.2 <100 109 NR <100
09/03/09 <0.140 <0.190 1.94 10.4 <0.250 2.04 <0.180 0.439 J <0.190 <0.220 2.20 <0.200 2.46 8.09 2.77 <1.10 <7.35 9.26 122 <205 <105 <205
12/21/09 <0.140 <0.190 <0.150 2.26 <0.250 <0.500 <0.180 <0.140 <0.190 <0.220 1.54 <0.200 0.932 J 1.62 0.490 J NR NR NR NR NR NR NR
03/24/10 <0.140 <1.00 <0.150 0.262 J <0.250 <0.500 <0.180 0.148 J <0.190 <0.220 0.490 J <0.200 0.240 J 0.230 J <0.180 <0.441 NR 11.1 NR NR NR NR
09/27/10 <0.140 <1.00 4.78 8.44 <0.250 <1.00 4.66 1.15 1.01 <0.220 1.69 <0.200 3.24 8.49 7.37 NR NR NR NR NR NR NR
03/23/11 <0.280 <2.00 7.98 3.84 <0.500 2.16 J 1.92 J 0.946 J <0.380 <0.440 2.72 <0.400 4.53 10.6 1.89 J NR NR NR NR NR NR NR
09/28/11 <0.13 <0.13 <0.15 <0.30 <0.13 <0.10 <0.10 <0.10 <0.10 <0.16 <0.10 <0.11 <0.11 <0.10 <0.10 NR NR NR NR NR NR NR
03/27/12 <0.13 <0.13 <0.15 <0.30 <0.13 <0.10 <0.10 <0.10 <0.10 <0.16 <0.10 <0.11 <0.11 <0.10 <0.10 NR NR NR NR NR NR NR
01/21/13 <0.10 <0.10 0.21 J 0.31 J <0.10 <0.15 <0.10 0.12 J <0.10 <0.10 0.46 J <0.10 0.20 J 0.22 J <0.10 NR NR NR NR NR NR NR
07/17/13 <0.10 <0.10 <0.10 <0.22 <0.10 <0.15 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 NR NR NR NR NR NR NR
01/23/14 <0.10 <0.10 <0.10 <0.20 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 NR NR NR NR NR NR NR
07/22/14 <0.10 <0.10 0.15 J <0.20 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 0.26 J <0.10 <0.10 <0.10 <0.10 NR NR NR NR NR NR NR
04/21/15 <0.17 <0.17 0.24 J <0.43 <0.16 <0.12 <0.14 <0.14 <0.15 <0.16 <0.12 <0.16 <0.16 <0.14 <0.14 NR NR NR NR NR NR NR
01/12/16 <0.13 <0.13 <0.13 <0.31 <0.13 0.56 <0.13 <0.13 <0.13 <0.13 0.22 J <0.13 <0.13 <0.13 <0.13 NR NR NR NR NR NR NR
09/24/08 3.99 <0.28 6.15 <1.2 <0.12 2.75 <0.39 1.49 0.540 I <0.12 1.47 0.320 I 1.80 0.720 I <0.27 NR NR 10.9 457 153 NR 356
09/03/09 3.95 <0.190 11.4 <0.220 <0.250 4.43 <0.180 2.32 1.06 <0.220 2.50 0.369 J 3.27 <0.150 <0.180 <1.10 <7.35 1.88 J 630 648 <105 601
12/21/09 7.89 0.740 J 37.4 4.14 <0.250 5.40 <0.180 3.72 1.27 <0.220 9.07 0.535 J 10.9 32.4 8.76 NR NR NR NR NR NR NR
03/24/10 14.6 <5.00 287 102 <1.25 74.7 13.0 7.31 1.14 J <1.10 45.6 <1.00 79.5 299 71.6 43.0 NR 11.2 NR NR NR NR
09/27/10 53.7 J <200 1,060 3,300 <50.0 919 J 564 91.5 J 123 J <44.0 243 <40.0 578 4,710 1,570 NR NR NR NR NR NR NR
03/23/11 7.42 <2.00 217 12.4 <0.500 26.9 <0.360 7.24 1.17 J <0.440 40.7 <0.400 54.6 254 2.71 NR NR NR NR NR NR NR
09/28/11 0.41 J <0.13 2.4 1.54 J <0.13 1.6 0.98 1.1 0.21 J <0.16 1.3 <0.11 2.9 11.1 3.4 NR NR NR NR NR NR NR
03/27/12 14.0 2.0 333 156.1 <0.13 74.8 5.0 7.7 1.5 <0.16 45.5 0.36 J 77.3 216 64.8 NR NR NR NR NR NR NR
01/21/13 15.8 1.9 J 386 220 <1.0 129 19.0 17.1 2.6 J <1.0 66.4 <1.0 146 452 141 NR NR NR NR NR NR NR
07/17/13 4.1 0.16 J 31.2 2.05 <0.10 2.8 1.1 3.1 0.90 <0.10 9.0 0.20 J 13.0 3.9 0.93 NR NR NR NR NR NR NR
01/23/14 12.8 0.79 222 90.4 <0.10 71.8 5.3 8.5 1.7 0.17 J 41.1 0.38 J 69.1 142 21.6 NR NR NR NR NR NR NR
07/22/14 2.9 0.19 J 43.7 10.2 <0.10 12.9 6.9 7.5 1.5 <0.10 11.9 0.20 J 28.7 36.0 10.5 NR NR NR NR NR NR NR
04/21/15 2.7 <0.17 19.2 2.79 <0.16 3.7 1.7 4.0 1.2 <0.16 5.7 0.24 J 9.7 6.4 1.0 NR NR NR NR NR NR NR
01/12/16 1.3 0.28 J 20.4 2.3 <0.13 6.1 1.4 3.7 1.1 <0.13 7.5 <0.13 11.2 6 0.59 NR NR NR NR NR NR NR
10/05/16 0.13 J <0.13 3.3 0.26 J <0.13 0.75 0.25 J 0.5 0.17 J <0.13 0.82 <0.13 1.9 0.48 J <0.13 NR NR NR NR NR NR NR
07/03/17 1.8 0.34 J 43 4.5 <0.13 20.3 2.5 3.8 1.2 <0.13 9.2 0.16 J 17.4 6.3 0.51 NR NR NR NR NR NR NR
07/15/20 1.3 0.20 J 34.6 17.8 <0.13 23.0 5.8 6.2 <0.13 <0.13 14.3 <0.13 34.5 26.8 8.3 NR NR NR NR NR NR NR
MW-1
MW-3
GCL(µg/l)
MW-2 C9-C22 Aromatics2L Standard (µg/l)IPEn-Propylbenzene1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneNaphthaleneBis(2-ethylhex yl)phthalateNaphthalenen-Butylbenzenesec-Butylbenzenetert-Butylbenzene1,2-DichloroethaneIsopropylbenzeneContaminant of Concern
BenzeneTABLE 6
SUMMARY OF GROUND WATER SAMPLE ANALYTICAL RESULTS
NOAH ROBERSON STORE (INCIDENT NO. 11759)
Analytical Method
EPA Method 6200B EPA Method 610 MADEP Methods EPH and VPH
LeadC5-C8 AliphaticsC9-C18 AliphaticsC19-C36 AliphaticsTolueneEthylbenzeneXylenesMTBEPage 1 of 7
Date: 7/24/2020 Facility ID #: 0-013970
EPA
Method
6010B
Well
ID
Date
Collected
(mm/dd/yy)
1 600 600 500 20 6 70 70 70 0.4 70 70 70 400 400 6 3 15 400 700 10,000 200
5,000 260,000 84,500 85,500 20,000 6,000 6,900 8,500 15,000 400 25,000 70,000 30,000 28,500 25,000 6,000 170 15,000 NE NE NE NEGCL(µg/l)C9-C22 Aromatics2L Standard (µg/l)IPEn-Propylbenzene1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneNaphthaleneBis(2-ethylhex yl)phthalateNaphthalenen-Butylbenzenesec-Butylbenzenetert-Butylbenzene1,2-DichloroethaneIsopropylbenzeneContaminant of Concern
BenzeneTABLE 6
SUMMARY OF GROUND WATER SAMPLE ANALYTICAL RESULTS
NOAH ROBERSON STORE (INCIDENT NO. 11759)
Analytical Method
EPA Method 6200B EPA Method 610 MADEP Methods EPH and VPH
LeadC5-C8 AliphaticsC9-C18 AliphaticsC19-C36 AliphaticsTolueneEthylbenzeneXylenesMTBE09/24/08 <0.31 <0.28 <0.31 <1.2 0.330 I <0.41 <0.39 <0.47 <0.22 0.630 I <0.24 2.76 I <0.30 <0.26 <0.27 NR NR 6.84 <100 <100 NR <100
09/03/09 <0.140 <0.190 <0.150 <0.220 <0.250 <0.500 <0.180 <0.140 <0.190 <0.220 <0.150 <0.200 <0.220 <0.150 <0.180 <1.12 <7.50 <1.50 <100 <205 <105 <205
12/21/09 <0.140 <0.190 <0.150 <0.220 <0.250 <0.500 <0.180 <0.140 <0.190 <0.220 <0.150 <0.200 <0.220 <0.150 <0.180 NR NR NR NR NR NR NR
03/24/10 0.162 J <1.00 <0.150 <0.220 <0.250 <0.500 <0.180 <0.140 <0.190 <0.220 <0.150 <0.200 <0.220 <0.150 <0.180 <0.441 NR 1.63 J NR NR NR NR
09/27/10 <0.140 <1.00 <0.150 <0.220 <0.250 <1.00 <0.180 <0.140 <0.190 <0.220 <0.150 <0.200 <0.220 <0.150 <0.180 NR NR NR NR NR NR NR
03/23/11 <0.280 <2.00 <0.300 <0.440 <0.500 <2.00 <0.360 <0.280 <0.380 <0.440 <0.300 <0.400 <0.440 <0.300 <0.360 NR NR NR NR NR NR NR
09/28/11 <0.13 <0.13 <0.15 <0.30 <0.13 <0.10 <0.10 <0.10 <0.10 <0.16 <0.10 0.19 J <0.11 <0.10 <0.10 NR NR NR NR NR NR NR
03/27/12 <0.13 <0.13 <0.15 <0.30 <0.13 <0.10 <0.10 <0.10 <0.10 <0.16 <0.10 <0.11 <0.11 <0.10 <0.10 NR NR NR NR NR NR NR
01/21/13 <0.10 <0.10 <0.10 <0.22 <0.10 <0.15 <0.10 <0.10 <0.10 0.13 J <0.10 0.16 J <0.10 <0.10 <0.10 NR NR NR NR NR NR NR
07/17/13 <0.10 <0.10 <0.10 <0.22 <0.10 <0.15 <0.10 <0.10 <0.10 0.42 J <0.10 0.78 <0.10 <0.10 <0.10 NR NR NR NR NR NR NR
01/23/14 <0.10 <0.10 <0.10 <0.20 <0.10 <0.10 <0.10 <0.10 <0.10 0.25 J <0.10 <0.10 <0.10 <0.10 <0.10 NR NR NR NR NR NR NR
07/22/14 <0.10 <0.10 <0.10 <0.20 <0.10 <0.10 <0.10 <0.10 <0.10 0.88 <0.10 1.6 <0.10 <0.10 <0.10 NR NR NR NR NR NR NR
04/21/15 <0.17 <0.17 <0.15 <0.43 <0.16 <0.12 <0.14 <0.14 <0.15 0.34 J <0.12 0.45 J <0.16 <0.14 <0.14 NR NR NR NR NR NR NR
01/12/16 <0.13 <0.13 <0.13 <0.31 <0.13 0.27 J <0.13 <0.13 <0.13 0.24 J <0.13 0.17 J <0.13 <0.13 <0.13 NR NR NR NR NR NR NR
09/24/08 1,010 80.0 I 1,530 6,410 <12 533 55.0 I <47 <22 <12 154 60.0 I 351 3,230 955 NR NR 36.4 45,600 6,000 NR 50,000
09/03/09 592 64.5 1,730 7,350 <6.25 716 <4.50 63.1 <4.75 <5.50 192 <5.00 427 3,530 1,190 1,010 390 15.0 14,300 54,600 960 28,180
12/21/09 93.9 23.8 971 4,470 <1.25 710 <0.900 60.3 5.75 <1.10 184 4.10 J 456 3,200 1,840 NR NR NR NR NR NR NR
03/24/10 128 33.6 J 1,810 7,460 <5.00 1,250 671 146 9.61 J <4.40 380 <4.00 1,030 4,940 2,940 454 NR 28.1 NR NR NR NR
09/27/10 1,620 <200 1,970 8,630 <50.0 509 J 78.0 J <28.0 <38.0 <44.0 114 J <40.0 168 J 1,780 541 NR NR NR NR NR NR NR
03/23/11 73.2 18.7 J 480 1,600 <2.50 202 53.0 22.8 <1.90 <2.20 57.8 3.67 J 105 1,110 441 NR NR NR NR NR NR NR
09/28/11 135 22.6 576 2,097 <0.13 1.3 22.0 15.7 1.8 1.7 71.2 4.7 <0.11 1,580 523 NR NR NR NR NR NR NR
03/27/12 97.3 13.3 703 2,227 <0.13 319 18.1 13.2 1.8 1.2 70.2 <0.11 142 1,650 539 NR NR NR NR NR NR NR
01/21/13 186 10.3 258 879 <2.0 179 4.2 J 4.3 J <2.0 4.1 J 23.6 7.5 J 47.8 676 261 NR NR NR NR NR NR NR
07/17/13 25.6 3.3 66.8 732 <0.10 186 14.0 10.5 1.3 0.40 J 45.7 0.89 66.3 859 78.1 NR NR NR NR NR NR NR
01/23/14 22.5 4.8 J 355 952 <2.0 217 11.0 9.0 J <2.0 <2.0 47.5 <2.0 106 1,270 185 NR NR NR NR NR NR NR
07/22/14 31.8 6.2 J 431 888 <5.0 281 14.6 J 13.7 J <5.0 <5.0 56.9 <5.0 163 1,410 328 NR NR NR NR NR NR NR
04/21/15 38.7 9.8 J 650 1,540 <4.1 325 19.0 14.7 <3.6 <4.1 83.0 <4.0 222 1,950 471 NR NR NR NR NR NR NR
01/12/16 21.4 3.8 J 426 516 <2.5 298 18 13.2 <2.5 <2.5 64.8 <2.5 173 1,920 277 NR NR NR NR NR NR NR
10/05/16 18.2 3.1 J 319 370 <2.5 277 15.9 12.6 <2.5 <2.5 50.9 <2.5 151 1,380 351 NR NR NR NR NR NR NR
07/03/17 20.2 4.1 J 443 590 <3.1 340 21.3 15.9 <3.1 <3.1 70.9 <3.1 191 1,680 437 NR NR NR NR NR NR NR
01/08/19 4.1 <0.13 52.6 0.93 J <0.13 96.7 5.2 4.7 0.77 0.28 J 32.5 0.27 J 58.6 150 15.1 NR NR NR NR NR NR NR
10/03/19 18.2 <3.1 377 460 <3.1 264 17.2 12.1 J <3.1 <3.1 52.3 <3.1 142 1,160 301 NR NR NR NR NR NR NR
07/15/20 15.2 J <6.3 404 655 <6.3 299 18.3 J 14.7 J <6.3 <6.3 57.2 <6.3 153 1,570 381 NR NR NR NR NR NR NR
09/24/08 17.6 <0.28 152 222 <0.12 94.8 7.12 8.67 1.31 <0.12 53.7 1.52 I 63.0 229 131 NR NR 38.9 1,280 115 NR 1,550
09/03/09 28.4 <0.475 206 354 <0.625 116 <0.450 11.7 1.18 J <0.550 55.4 <0.500 71.7 325 137 66.3 8.22 J 12.0 1,370 1,300 <105 1,769
12/21/09 15.8 0.784 J 189 239 <0.500 124 <0.360 13.4 1.78 J <0.440 72.0 <0.400 99.7 331 157 NR NR NR NR NR NR NR
03/24/10 9.74 <5.00 114 115 <1.25 68.4 16.3 10.1 1.26 J <1.10 54.5 <1.00 59.1 248 92.2 43.5 NR 5.26 NR NR NR NR
09/27/10 15.3 <1.00 68.6 66.7 0.412 J 19.5 3.11 2.59 1.16 0.299 J 21.6 2.41 19.4 71.6 11.1 NR NR NR NR NR NR NR
03/23/11 8.13 <1.00 64.1 69.3 <0.250 64.9 19.9 14.9 2.02 <0.220 60.4 0.547 J 53.2 178 36.1 NR NR NR NR NR NR NR
09/28/11 8.6 0.40 J 60.7 57.0 <0.13 76.8 10.8 14.3 <0.10 <0.16 58.9 0.54 60.8 193 45.5 NR NR NR NR NR NR NR
03/27/12 2.7 <0.13 24.7 11.5 <0.13 46.3 11.6 13.9 1.8 <0.16 46.9 0.16 J 46.8 87.6 31.8 NR NR NR NR NR NR NR
01/21/13 8.4 <1.0 78.0 47.9 <1.0 100 14.3 14.5 1.5 J <1.0 49.3 <1.0 76.6 399 112 NR NR NR NR NR NR NR
07/17/13 3.1 0.17 J 48.5 37.8 <0.10 75.4 16.0 18.2 2.1 <0.10 45.7 0.19 J 72.7 262 85.4 NR NR NR NR NR NR NR
01/23/14 2.2 0.19 J 42.8 43.3 <0.10 84.3 20.3 19.4 2.3 <0.10 53.9 0.11 J 81.1 445 146 NR NR NR NR NR NR NR
07/22/14 2.9 J 3.7 J 59.3 90.1 <1.0 104 13.8 15.1 2.1 J <1.0 52.6 <1.0 95.5 550 187 NR NR NR NR NR NR NR
04/21/15 1.7 <0.17 43.1 19.9 <0.16 69.9 19.9 19.4 2.5 <0.16 48.8 <0.16 87.4 374 137 NR NR NR NR NR NR NR
01/12/16 3.2 0.14 J 55.1 13.2 <0.13 95.3 21.6 22.3 2.9 <0.13 59.3 0.22 J 102 305 126 NR NR NR NR NR NR NR
10/05/16 2.8 <0.13 22 15.3 <0.13 77.1 19.3 19.4 <0.13 <0.13 49 0.21 J 26.7 141 52.9 NR NR NR NR NR NR NR
07/03/17 2 <0.13 31.1 4.7 <0.13 80.1 15.2 15.3 1.9 <0.13 37.7 0.14 J 66.3 188 78.3 NR NR NR NR NR NR NR
07/15/20 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS
MW-6
MW-5
MWD-4
Page 2 of 7
Date: 7/24/2020 Facility ID #: 0-013970
EPA
Method
6010B
Well
ID
Date
Collected
(mm/dd/yy)
1 600 600 500 20 6 70 70 70 0.4 70 70 70 400 400 6 3 15 400 700 10,000 200
5,000 260,000 84,500 85,500 20,000 6,000 6,900 8,500 15,000 400 25,000 70,000 30,000 28,500 25,000 6,000 170 15,000 NE NE NE NEGCL(µg/l)C9-C22 Aromatics2L Standard (µg/l)IPEn-Propylbenzene1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneNaphthaleneBis(2-ethylhex yl)phthalateNaphthalenen-Butylbenzenesec-Butylbenzenetert-Butylbenzene1,2-DichloroethaneIsopropylbenzeneContaminant of Concern
BenzeneTABLE 6
SUMMARY OF GROUND WATER SAMPLE ANALYTICAL RESULTS
NOAH ROBERSON STORE (INCIDENT NO. 11759)
Analytical Method
EPA Method 6200B EPA Method 610 MADEP Methods EPH and VPH
LeadC5-C8 AliphaticsC9-C18 AliphaticsC19-C36 AliphaticsTolueneEthylbenzeneXylenesMTBE09/24/08 <0.31 <0.28 <0.31 <1.2 <0.12 <0.41 <0.39 <0.47 <0.22 <0.12 <0.24 <0.15 <0.30 <0.26 <0.27 NR NR 11.0 <100 <100 NR <100
09/03/09 <0.140 <0.190 <0.150 <0.220 <0.250 <0.500 <0.180 <0.140 <0.190 <0.220 <0.150 <0.200 <0.220 <0.150 <0.180 <1.12 <7.50 4.99 <100 <205 <105 <205
12/21/09 <0.140 <0.190 <0.150 <0.220 <0.250 <0.500 <0.180 <0.140 <0.190 <0.220 <0.150 <0.200 <0.220 <0.150 <0.180 NR NR NR NR NR NR NR
03/24/10 <0.140 <1.00 <0.150 <0.220 <0.250 <0.500 <0.180 <0.140 <0.190 <0.220 <0.150 <0.200 <0.220 <0.150 <0.180 <0.441 NR 7.37 NR NR NR NR
09/27/10 <0.140 <1.00 <0.150 <0.220 <0.250 <1.00 <0.180 <0.140 <0.190 <0.220 <0.150 <0.200 <0.220 0.245 J <0.180 NR NR NR NR NR NR NR
03/23/11 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS
09/28/11 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS
12/21/09 <0.140 51.9 <0.150 <0.220 <0.250 <0.500 <0.180 <0.140 <0.190 <0.220 <0.150 <0.200 <0.220 <0.150 <0.180 NR NR NR NR NR NR NR
03/24/10 <0.140 <1.00 <0.150 <0.220 <0.250 <0.500 <0.180 <0.140 <0.190 <0.220 <0.150 <0.200 <0.220 <0.150 <0.180 <0.441 NR 8.46 NR NR NR NR
09/27/10 <0.140 <1.00 <0.150 <0.220 <0.250 <1.00 <0.180 <0.140 <0.190 <0.220 <0.150 <0.200 <0.220 <0.150 <0.180 NR NR NR NR NR NR NR
03/23/11 <0.140 <1.00 <0.150 <0.220 <0.250 <1.00 <0.180 <0.140 <0.190 <0.220 <0.150 <0.200 <0.220 <0.150 <0.180 NR NR NR NR NR NR NR
09/28/11 <0.13 <0.13 <0.15 <0.30 <0.13 0.19 J <0.10 <0.10 <0.10 <0.16 <0.10 <0.11 <0.11 <0.10 <0.10 NR NR NR NR NR NR NR
03/27/12 <0.13 <0.13 <0.15 <0.30 <0.13 <0.10 <0.10 <0.10 <0.10 <0.16 <0.10 <0.11 <0.11 <0.10 <0.10 NR NR NR NR NR NR NR
01/21/13 <0.10 <0.10 <0.10 <0.22 <0.10 <0.15 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 NR NR NR NR NR NR NR
07/17/13 <0.10 <0.10 <0.10 <0.22 <0.10 <0.15 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 NR NR NR NR NR NR NR
01/23/14 <0.10 <0.10 <0.10 <0.20 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 NR NR NR NR NR NR NR
07/22/14 <0.10 <0.10 <0.10 <0.20 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 NR NR NR NR NR NR NR
04/21/15 <0.17 <0.17 <0.15 <0.43 <0.16 <0.12 <0.14 <0.14 <0.15 <0.16 <0.12 <0.16 <0.16 <0.14 <0.14 NR NR NR NR NR NR NR
01/12/16 <0.13 <0.13 <0.13 <0.31 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 NR NR NR NR NR NR NR
09/24/08 <0.31 <0.28 <0.31 <1.2 <0.12 <0.41 <0.39 <0.47 <0.22 <0.12 <0.24 <0.15 <0.30 <0.26 <0.27 NR NR 11.6 <100 <100 NR <100
09/03/09 <0.140 <0.190 <0.150 <0.220 <0.250 <0.500 <0.180 <0.140 <0.190 <0.220 <0.150 <0.200 <0.220 <0.150 <0.180 <1.12 <7.50 6.53 <100 <205 <105 <205
12/21/09 <0.140 <0.190 <0.150 <0.220 <0.250 <0.500 <0.180 <0.140 <0.190 <0.220 <0.150 <0.200 <0.220 <0.150 <0.180 NR NR NR NR NR NR NR
03/24/10 <0.140 <1.00 <0.150 <0.220 <0.250 <0.500 <0.180 <0.140 <0.190 <0.220 <0.150 <0.200 <0.220 <0.150 <0.180 <0.441 NR 6.27 NR NR NR NR
09/27/10 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS
03/23/11 <0.140 <1.00 0.409 J 1.19 <0.250 1.56 J 0.257 J 0.141 J <0.190 <0.220 0.211 J <0.200 0.298 J 1.64 0.456 J NR NR NR NR NR NR NR
09/28/11 <0.13 <0.13 <0.15 <0.30 <0.13 <0.10 <0.10 <0.10 <0.10 <0.16 <0.10 <0.11 <0.11 <0.10 <0.10 NR NR NR NR NR NR NR
03/27/12 <0.13 <0.13 <0.15 <0.30 <0.13 <0.10 <0.10 <0.10 <0.10 <0.16 <0.10 <0.11 <0.11 <0.10 <0.10 NR NR NR NR NR NR NR
01/21/13 <0.10 <0.10 <0.10 <0.22 <0.10 <0.15 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 NR NR NR NR NR NR NR
07/17/13 <0.10 <0.10 <0.10 <0.22 <0.10 <0.15 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 NR NR NR NR NR NR NR
01/23/14 <0.10 <0.10 <0.10 <0.20 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 NR NR NR NR NR NR NR
07/22/14 <0.10 <0.10 <0.10 <0.20 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 NR NR NR NR NR NR NR
04/21/15 <0.17 <0.17 <0.15 <0.43 <0.16 <0.12 <0.14 <0.14 <0.15 <0.16 <0.12 <0.16 <0.16 <0.14 <0.14 NR NR NR NR NR NR NR
09/24/08 <0.31 <0.28 <0.31 <1.2 <0.12 <0.41 <0.39 <0.47 <0.22 <0.12 <0.24 <0.15 <0.30 <0.26 <0.27 NR NR 9.11 <100 <100 NR <100
09/03/09 <0.140 <0.190 <0.150 <0.220 <0.250 <0.500 <0.180 0.806 J <0.190 <0.220 <0.150 <0.200 <0.220 <0.150 <0.180 <1.12 <7.50 11.4 <100 <205 <105 <205
12/21/09 <0.140 <0.190 <0.150 <0.220 <0.250 <0.500 <0.180 <0.140 <0.190 <0.220 <0.150 <0.200 <0.220 <0.150 <0.180 NR NR NR NR NR NR NR
03/24/10 <0.140 <1.00 <0.150 <0.220 <0.250 <0.500 <0.180 0.642 J <0.190 <0.220 <0.150 <0.200 <0.220 <0.150 <0.180 <0.441 NR 5.88 NR NR NR NR
09/27/10 <0.140 <1.00 <0.150 <0.220 <0.250 <1.00 <0.180 0.588 J <0.190 <0.220 <0.150 <0.200 <0.220 <0.150 <0.180 NR NR NR NR NR NR NR
03/23/11 <0.140 <1.00 0.198 J 0.565 J <.250 <1.00 <0.180 <0.140 <0.190 <0.220 <0.150 <0.200 <0.220 0.813 J 0.282 J NR NR NR NR NR NR NR
09/28/11 <0.13 <0.13 <0.15 <0.30 <0.13 <0.10 <0.10 <0.10 <0.10 <0.16 <0.10 <0.11 <0.11 <0.10 <0.10 NR NR NR NR NR NR NR
03/27/12 <0.13 <0.13 <0.15 <0.30 <0.13 <0.10 <0.10 0.30 J <0.10 <0.16 <0.10 <0.11 <0.11 <0.10 <0.10 NR NR NR NR NR NR NR
01/21/13 <0.10 <0.10 <0.10 <0.22 <0.10 <0.15 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 NR NR NR NR NR NR NR
07/17/13 <0.10 <0.10 <0.10 <0.22 <0.10 <0.15 <0.10 0.37 J <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 NR NR NR NR NR NR NR
01/23/14 <0.10 <0.10 <0.10 <0.20 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 NR NR NR NR NR NR NR
07/22/14 <0.10 <0.10 <0.10 <0.20 <0.10 <0.10 <0.10 0.19 J <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 NR NR NR NR NR NR NR
04/21/15 <0.17 <0.17 <0.15 <0.43 <0.16 <0.12 <0.14 <0.14 <0.15 <0.16 <0.12 <0.16 <0.16 <0.14 <0.14 NR NR NR NR NR NR NR
MW-7
MW-8R
MW-9
MW-10
Page 3 of 7
Date: 7/24/2020 Facility ID #: 0-013970
EPA
Method
6010B
Well
ID
Date
Collected
(mm/dd/yy)
1 600 600 500 20 6 70 70 70 0.4 70 70 70 400 400 6 3 15 400 700 10,000 200
5,000 260,000 84,500 85,500 20,000 6,000 6,900 8,500 15,000 400 25,000 70,000 30,000 28,500 25,000 6,000 170 15,000 NE NE NE NEGCL(µg/l)C9-C22 Aromatics2L Standard (µg/l)IPEn-Propylbenzene1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneNaphthaleneBis(2-ethylhex yl)phthalateNaphthalenen-Butylbenzenesec-Butylbenzenetert-Butylbenzene1,2-DichloroethaneIsopropylbenzeneContaminant of Concern
BenzeneTABLE 6
SUMMARY OF GROUND WATER SAMPLE ANALYTICAL RESULTS
NOAH ROBERSON STORE (INCIDENT NO. 11759)
Analytical Method
EPA Method 6200B EPA Method 610 MADEP Methods EPH and VPH
LeadC5-C8 AliphaticsC9-C18 AliphaticsC19-C36 AliphaticsTolueneEthylbenzeneXylenesMTBE09/24/08 62.0 <5.6 908 207 <2.4 386 15.0 I <9.4 <4.4 <2.4 91.2 4.80 I 198 1,500 437 NR NR 4.06 I 2,030 835 NR 6,120
09/03/09 97.8 <4.75 1,340 302 <6.25 554 <4.50 32.9 <4.75 <5.50 150 <5.00 338 2,040 701 384 <7.50 <1.50 2,000 4,530 <105 6,757
12/21/09 38.4 <0.380 402 55.6 <0.500 352 <0.360 10.7 1.79 J 1.72 J 70.5 3.07 143 882 296 NR NR NR NR NR NR NR
03/24/10 34.0 <25.0 1,320 185 <6.25 452 69.1 28.9 <4.75 <5.50 149 <5.00 296 2,440 702 165 NR 2.76 J NR NR NR NR
09/27/10 43.0 <10.0 868 105 <2.50 392 57.7 15.7 19.7 <2.20 119 <2.00 246 1,400 480 NR NR NR NR NR NR NR
03/23/11 32.8 <20.0 747 58.9 <5.00 357 41.3 19.9 J <3.80 <4.40 106 <4.00 228 1,380 369 NR NR NR NR NR NR NR
09/28/11 22.0 <1.3 481 17.7 J <1.3 344 16.6 12.6 1.6 J <1.6 92.7 1.4 J 194 1,220 266 NR NR NR NR NR NR NR
03/27/12 10.4 0.25 J 307 17.4 <0.13 286 15.3 11.6 1.7 0.28 J 55.5 0.73 118 1,120 268 NR NR NR NR NR NR NR
01/21/13 17.7 J <5.0 432 <11 <5.0 416 21.4 J 15.6 J <5.0 <5.0 76.9 <5.0 223 1,450 276 NR NR NR NR NR NR NR
07/17/13 5.7 0.21 J 202 6.0 <0.10 274 18.9 13.3 1.7 <0.10 45.5 0.29 J 138 1,020 171 NR NR NR NR NR NR NR
01/23/14 5.7 <1.0 178 6.7 J <1.0 238 11.7 9.2 <1.0 <1.0 44.4 <1.0 112 780 97.2 NR NR NR NR NR NR NR
04/21/15 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS
01/08/19 34.5 0.95 J 173 421 <0.63 270 5.2 10.1 1.6 J <0.63 68.7 0.74 J 83.4 717 208 NR NR NR NR NR NR NR
10/03/19 4.8 0.98 J 95.2 2.4 J <0.63 362 23.6 16.1 2.0 J <0.63 71 <0.63 181 363 34.7 NR NR NR NR NR NR NR
07/15/20 4.3 J <1.3 119 1.8 J <1.3 395 26.7 17.0 1.7 J <1.3 67.7 <1.3 212 513 44.2 NR NR NR NR NR NR NR
09/24/08 21.0 4.54 287 831 <0.12 166 <0.39 <0.47 <0.22 <0.12 54.5 <0.15 90.7 759 251 NR NR 6.55 5,490 1,040 NR 2,940
09/03/09 61.5 6.16 J 582 1,410 <3.12 310 <2.25 21.2 <2.38 <2.75 102 <2.50 195 1,160 377 147 34.4 <1.50 5,990 3,240 <105 4,160
12/21/09 34.6 5.98 J 608 1,480 <2.50 322 <1.80 13.3 <1.90 <2.20 104 <2.00 182 1,360 389 NR NR NR NR NR NR NR
03/24/10 34.5 <20.0 742 2,080 <5.00 266 46.2 20.6 <3.80 <4.40 126 <4.00 190 1,490 449 192 NR 2.10 J NR NR NR NR
09/27/10 15.9 <10.0 260 809 <2.50 162 43.6 12.9 11.2 <2.20 69.3 <2.00 123 1,000 339 NR NR NR NR NR NR NR
03/23/11 27.1 <20.0 475 1,240 <5.00 174 27.5 15.6 J <3.80 <4.40 95.5 <4.00 163 1,170 336 NR NR NR NR NR NR NR
09/28/11 18.1 J <6.4 460 1,131 <6.5 236 8.5 J 8.4 J <5.0 <8.2 86.4 <5.4 149 1,190 359 NR NR NR NR NR NR NR
03/27/12 38.5 8.9 J 671 1,574 <6.5 272 14.0 J 12.0 J <5.0 <8.2 111 <5.4 211 1,390 420 NR NR NR NR NR NR NR
01/21/13 64.8 5.9 J 565 1,077 <2.0 328 11.6 12.2 <2.0 <2.0 97.8 <2.0 204 1,060 303 NR NR NR NR NR NR NR
07/17/13 5.9 1.9 248 547 <0.10 152 11.8 11.4 1.8 <0.10 57.6 <0.10 134 976 360 NR NR NR NR NR NR NR
01/23/14 20.5 4.6 J 564 1,440 <1.0 271 15.5 13.7 1.7 J <1.0 101 <1.0 211 1,380 428 NR NR NR NR NR NR NR
07/22/14 25.1 7.4 J 649 1,470 <5.0 258 16.2 J 17.7 J <5.0 <5.0 104 <5.0 258 1,550 517 NR NR NR NR NR NR NR
04/21/15 18.1 5.3 J 570 1,230 <3.3 249 15.2 13.3 <2.9 <3.3 102 <3.2 225 1,540 438 NR NR NR NR NR NR NR
01/12/16 13.2 3.1 982 2,290 <0.13 583 16 14 2.1 0.24 J 201 <0.13 432 3,420 E 1,060 NR NR NR NR NR NR NR
10/05/16 10.7 3.2 J 438 1,370 <2.5 309 18.9 16.6 <2.5 <2.5 95 <2.5 222 1,880 451 NR NR NR NR NR NR NR
07/03/17 10.8 J 3.7 J 426 858 <3.1 261 18.5 15.7 <3.1 <3.1 94.2 <3.1 192 1,370 402 NR NR NR NR NR NR NR
01/08/19 33.8 1.5 J 410 182 <1.3 262 16.1 12.1 <1.3 <1.3 62.5 <1.3 143 1,210 177 NR NR NR NR NR NR NR
10/03/19 32.5 <3.1 380 479 <3.1 331 11.0 J 12.5 J <3.1 <3.1 88.8 <3.1 175 848 252 NR NR NR NR NR NR NR
07/15/20 21.5 <3.1 494 775 <3.1 300 12.3 J 11.9 J <3.1 <3.1 77.6 <3.1 194 1,230 352 NR NR NR NR NR NR NR
09/24/08 34.4 <2.8 6.40 I <12 <1.2 44.8 <3.9 8.10 I <2.2 <1.2 44.8 <1.5 16.9 5.30 I <2.7 NR NR 55.5 959 193 NR 580
09/03/09 0.716 J <0.190 <0.150 <0.220 <0.250 2.51 <0.180 0.922 J <0.190 <0.220 1.87 <0.200 <0.220 <0.150 <0.180 <1.18 <7.89 24.5 <100 <205 <105 <205
12/21/09 <0.140 <0.190 <0.150 <0.220 <0.250 <0.500 <0.180 <0.140 <0.190 <0.220 <0.150 <0.200 <0.220 <0.150 <0.180 NR NR NR NR NR NR NR
03/24/10 <0.140 <1.00 <0.150 <0.220 <0.250 <0.500 <0.180 <0.140 <0.190 <0.220 <0.150 <0.200 <0.220 <0.150 <0.180 <0.441 NR 35.0 NR NR NR NR
09/27/10 26.6 <1.00 5.76 <0.220 <0.250 47.9 <0.180 12.4 <0.190 0.574 J 68.1 1.81 30.9 0.193 J <0.180 NR NR NR NR NR NR NR
03/23/11 <0.140 <1.00 <0.150 <0.220 <0.250 <1.00 <0.180 <0.140 <0.190 <0.220 <0.150 <0.200 <0.220 <0.150 <0.180 NR NR NR NR NR NR NR
09/28/11 0.35 J <0.13 <0.15 <0.30 <0.13 1.3 <0.10 0.34 J <0.10 <0.16 1.4 <0.11 0.17 J <0.10 <0.10 NR NR NR NR NR NR NR
03/27/12 <0.13 <0.13 <0.15 <0.30 <0.13 <0.10 <0.10 <0.10 <0.10 <0.16 <0.10 <0.11 <0.11 <0.10 <0.10 NR NR NR NR NR NR NR
01/21/13 <0.10 <0.10 <0.10 <0.22 <0.10 <0.15 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 NR NR NR NR NR NR NR
07/17/13 <0.10 <0.10 0.13 J 0.15 J <0.10 0.82 <0.10 0.21 J <0.10 <0.10 0.34 J <0.10 0.17 J 0.77 <0.10 NR NR NR NR NR NR NR
01/23/14 <0.10 <0.10 <0.10 <0.20 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 NR NR NR NR NR NR NR
07/22/14 <0.10 <0.10 <0.10 <0.20 <0.10 0.85 <0.10 0.54 0.11 J <0.10 0.17 J <0.10 <0.10 0.26 J <0.10 NR NR NR NR NR NR NR
04/21/15 <0.17 <0.17 <0.15 <0.43 <0.16 <0.12 <0.14 <0.14 <0.15 <0.16 <0.12 <0.16 <0.16 0.20 J <0.14 NR NR NR NR NR NR NR
01/12/16 <0.13 <0.13 <0.13 <0.31 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 0.28 J <0.13 NR NR NR NR NR NR NR
MW-12
MW-13
MW-14
Page 4 of 7
Date: 7/24/2020 Facility ID #: 0-013970
EPA
Method
6010B
Well
ID
Date
Collected
(mm/dd/yy)
1 600 600 500 20 6 70 70 70 0.4 70 70 70 400 400 6 3 15 400 700 10,000 200
5,000 260,000 84,500 85,500 20,000 6,000 6,900 8,500 15,000 400 25,000 70,000 30,000 28,500 25,000 6,000 170 15,000 NE NE NE NEGCL(µg/l)C9-C22 Aromatics2L Standard (µg/l)IPEn-Propylbenzene1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneNaphthaleneBis(2-ethylhex yl)phthalateNaphthalenen-Butylbenzenesec-Butylbenzenetert-Butylbenzene1,2-DichloroethaneIsopropylbenzeneContaminant of Concern
BenzeneTABLE 6
SUMMARY OF GROUND WATER SAMPLE ANALYTICAL RESULTS
NOAH ROBERSON STORE (INCIDENT NO. 11759)
Analytical Method
EPA Method 6200B EPA Method 610 MADEP Methods EPH and VPH
LeadC5-C8 AliphaticsC9-C18 AliphaticsC19-C36 AliphaticsTolueneEthylbenzeneXylenesMTBE09/24/08 1.09 <0.28 1.44 1.17 I <0.12 18.9 1.43 2.74 0.370 I <0.12 5.71 <0.15 6.60 0.280 I 0.330 I NR NR 8.96 212 109 NR 137
09/03/09 1.55 <0.190 2.08 <0.220 <0.250 33.8 <0.180 3.90 0.597 J <0.220 6.92 <0.200 9.80 <0.150 0.781 J 15.3 <7.50 1.76 J 190 173 <105 158
12/21/09 0.554 J <0.190 <0.150 <0.220 <0.250 20.0 1.39 1.86 0.575 J <0.220 2.22 <0.200 0.435 J <0.150 0.623 J NR NR NR NR NR NR NR
03/24/10 2.75 J <5.00 3.80 J <1.10 <1.25 18.7 2.59 J 2.94 J <0.950 <1.10 9.70 <1.00 13.5 4.05 J 2.22 J 8.94 NR 2.63 J NR NR NR NR
09/27/10 1.35 <1.00 3.03 <0.220 <0.250 28.6 2.72 3.32 <0.190 <0.220 11.6 <0.200 16.0 0.583 J 0.637 J NR NR NR NR NR NR NR
03/23/11 3.19 <1.00 3.47 0.425 J <0.250 22.2 3.49 4.21 0.683 J <0.220 11.1 <0.200 15.7 5.31 2.58 NR NR NR NR NR NR NR
09/28/11 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS
03/27/12 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS
09/24/08 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS
09/03/09 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS
09/03/09 <0.140 <0.190 <0.150 <0.220 <0.250 <0.500 <0.180 <0.140 <0.190 <0.220 <0.150 5.98 <0.220 <0.150 <0.180 <1.18 <7.89 4.84 <100 <211 <111 <211
12/21/09 <0.140 <0.190 <0.150 <0.220 0.347 J 1.20 <0.180 <0.140 <0.190 <0.220 <0.150 4.68 <0.220 <0.150 <0.180 NR NR NR NR NR NR NR
03/24/10 <0.140 <1.00 <0.150 <0.220 0.407 J <0.500 <0.180 <0.140 <0.190 <0.220 <0.150 4.87 <0.220 <0.150 <0.180 <0.441 NR 2.03 J NR NR NR NR
09/27/10 <0.140 <1.00 <0.150 <0.220 <0.250 1.66 J <0.180 <0.140 <0.190 <0.220 <0.150 0.307 J <0.220 <0.150 <0.180 NR NR NR NR NR NR NR
03/23/11 <0.140 <1.00 <0.150 <0.220 <0.250 <1.00 <0.180 <0.140 <0.190 <0.220 <0.150 5.44 <0.220 <0.150 <0.180 NR NR NR NR NR NR NR
09/28/11 <0.13 <0.13 <0.15 <0.30 <0.13 <0.10 <0.10 <0.10 <0.10 <0.16 <0.10 1.0 <0.11 <0.10 <0.10 NR NR NR NR NR NR NR
03/27/12 <0.13 <0.13 <0.15 <0.30 0.28 J <0.10 <0.10 <0.10 <0.10 <0.16 <0.10 3.7 <0.11 <0.10 <0.10 NR NR NR NR NR NR NR
01/21/13 <0.10 <0.10 <0.10 <0.22 0.30 J <0.15 <0.10 <0.10 <0.10 <0.10 <0.10 4.3 <0.10 <0.10 <0.10 NR NR NR NR NR NR NR
07/17/13 <0.10 <0.10 <0.10 <0.22 0.19 J <0.15 <0.10 <0.10 <0.10 <0.10 <0.10 1.7 <0.10 <0.10 <0.10 NR NR NR NR NR NR NR
01/23/14 <0.10 <0.10 <0.10 <0.20 0.29 J <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 3.4 <0.10 <0.10 <0.10 NR NR NR NR NR NR NR
07/22/14 <0.10 <0.10 <0.10 <0.20 0.44 J 0.15 J <0.10 <0.10 <0.10 <0.10 <0.10 5.2 <0.10 <0.10 <0.10 NR NR NR NR NR NR NR
04/21/15 <0.17 <0.17 <0.15 <0.43 0.43 J <0.12 <0.14 <0.14 <0.15 <0.16 <0.12 5.2 <0.16 <0.14 <0.14 NR NR NR NR NR NR NR
09/24/08 <0.31 <0.28 <0.31 <1.2 6.17 2.04 <0.39 0.480 I <0.22 <0.12 2.15 4.29 I 0.350 I <0.26 <0.27 NR NR 28.1 <100 135 NR 135
09/03/09 <0.140 <0.190 0.838 J <0.220 5.77 44.1 <0.180 2.82 <0.190 1.25 13.3 3.53 10.1 <0.150 <0.180 8.01 J <8.33 11.8 <100 134 <105 126
12/21/09 <0.140 <0.190 <0.150 <0.220 <0.250 1.11 <0.180 <0.140 <0.190 <0.220 <0.150 <0.200 <0.220 <0.150 <0.180 NR NR NR NR NR NR NR
03/24/10 <0.140 <1.00 <0.150 <0.220 0.298 J 1.44 <0.180 <0.140 <0.190 <0.220 0.450 J 0.202 J <0.220 <0.150 <0.180 <0.441 NR 15.2 NR NR NR NR
09/27/10 <0.140 <1.00 <0.150 <0.220 <0.250 <1.00 <0.180 <0.140 <0.190 <0.220 <0.150 <0.200 <0.220 <0.150 <0.180 NR NR NR NR NR NR NR
03/23/11 <0.140 <1.00 <0.150 <0.220 0.933 J 5.12 <0.180 0.356 J <0.190 0.369 J 1.73 3.83 0.589 J <0.150 <0.180 NR NR NR NR NR NR NR
09/28/11 <0.13 <0.13 <0.15 <0.30 0.14 J 0.64 <0.10 <0.10 <0.10 <0.16 0.18 J 0.20 J <0.11 <0.10 <0.10 NR NR NR NR NR NR NR
03/27/12 <0.13 <0.13 <0.15 <0.30 <0.13 <0.10 <0.10 <0.10 <0.10 <0.16 <0.10 <0.11 <0.11 <0.10 <0.10 NR NR NR NR NR NR NR
01/21/13 1.4 <0.10 <0.10 <0.22 0.32 J 10.6 <0.10 0.55 <0.10 0.19 J 2.6 0.43 J 0.46 J <0.10 <0.10 NR NR NR NR NR NR NR
07/17/13 <0.10 <0.10 <0.10 <0.22 <0.10 <0.15 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 NR NR NR NR NR NR NR
01/23/14 <0.10 <0.10 <0.10 <0.20 <0.10 0.29 J <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 NR NR NR NR NR NR NR
07/22/14 <0.10 <0.10 <0.10 <0.20 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 NR NR NR NR NR NR NR
04/21/15 <0.17 <0.17 <0.15 <0.43 <0.16 <0.12 <0.14 <0.14 <0.15 <0.16 <0.12 <0.16 <0.16 <0.14 <0.14 NR NR NR NR NR NR NR
01/12/16 <0.13 <0.13 <0.13 <0.31 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 NR NR NR NR NR NR NR
09/03/09 <0.140 <0.190 <0.150 <0.220 <0.250 1.13 <0.180 <0.140 <0.190 <0.220 <0.150 <0.200 <0.220 <0.150 <0.180 <1.09 <7.28 3.54 <100 <205 <105 <205
12/21/09 <0.140 <0.190 <0.150 <0.220 <0.250 <0.500 <0.180 <0.140 <0.190 <0.220 <0.150 <0.200 <0.220 <0.150 <0.180 NR NR NR NR NR NR NR
03/24/10 <0.140 <1.00 <0.150 <0.220 <0.250 <0.500 <0.180 <0.140 <0.190 <0.220 <0.150 <0.200 <0.220 <0.150 <0.180 <0.441 NR 1.83 J NR NR NR NR
09/27/10 <0.140 <1.00 <0.150 <0.220 <0.250 <1.00 <0.180 <0.140 <0.190 <0.220 <0.150 <0.200 <0.220 <0.150 <0.180 NR NR NR NR NR NR NR
03/23/11 <0.140 <1.00 <0.150 <0.220 <0.250 <1.00 <0.180 <0.140 <0.190 <0.220 <0.150 <0.200 <0.220 <0.150 <0.180 NR NR NR NR NR NR NR
09/28/11 <0.13 <0.13 <0.15 <0.30 <0.13 <0.10 <0.10 <0.10 <0.10 <0.16 <0.10 <0.11 <0.11 <0.10 <0.10 NR NR NR NR NR NR NR
03/27/12 NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR
01/21/13 NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR
MW-17
MW-15
MW-16
MW-16R
MW-18
Page 5 of 7
Date: 7/24/2020 Facility ID #: 0-013970
EPA
Method
6010B
Well
ID
Date
Collected
(mm/dd/yy)
1 600 600 500 20 6 70 70 70 0.4 70 70 70 400 400 6 3 15 400 700 10,000 200
5,000 260,000 84,500 85,500 20,000 6,000 6,900 8,500 15,000 400 25,000 70,000 30,000 28,500 25,000 6,000 170 15,000 NE NE NE NEGCL(µg/l)C9-C22 Aromatics2L Standard (µg/l)IPEn-Propylbenzene1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneNaphthaleneBis(2-ethylhex yl)phthalateNaphthalenen-Butylbenzenesec-Butylbenzenetert-Butylbenzene1,2-DichloroethaneIsopropylbenzeneContaminant of Concern
BenzeneTABLE 6
SUMMARY OF GROUND WATER SAMPLE ANALYTICAL RESULTS
NOAH ROBERSON STORE (INCIDENT NO. 11759)
Analytical Method
EPA Method 6200B EPA Method 610 MADEP Methods EPH and VPH
LeadC5-C8 AliphaticsC9-C18 AliphaticsC19-C36 AliphaticsTolueneEthylbenzeneXylenesMTBE09/03/09 <0.140 <0.190 <0.150 <0.220 <0.250 <0.500 <0.180 <0.140 <0.190 <0.220 <0.150 <0.200 <0.220 <0.150 <0.180 <1.18 <7.89 18.9 <100 <205 <105 <205
12/21/09 <0.140 <0.190 <0.150 <0.220 <0.250 <0.500 <0.180 <0.140 <0.190 <0.220 <0.150 <0.200 <0.220 <0.150 <0.180 NR NR NR NR NR NR NR
03/24/10 <0.140 <1.00 <0.150 <0.220 <0.250 <0.500 <0.180 <0.140 <0.190 <0.220 <0.150 <0.200 <0.220 <0.150 <0.180 <0.450 NR 3.44 NR NR NR NR
09/27/10 <0.140 <1.00 <0.150 <0.220 <0.250 <1.00 <0.180 <0.140 <0.190 <0.220 <0.150 <0.200 <0.220 <0.150 <0.180 NR NR NR NR NR NR NR
03/23/11 <0.140 <1.00 <0.150 <0.220 <0.250 <1.00 <0.180 <0.140 <0.190 <0.220 <0.150 <0.200 <0.220 <0.150 <0.180 NR NR NR NR NR NR NR
09/28/11 <0.13 <0.13 <0.15 <0.30 <0.13 <0.10 <0.10 <0.10 <0.10 <0.16 <0.10 <0.11 <0.11 <0.10 <0.10 NR NR NR NR NR NR NR
03/27/12 <0.13 <0.13 <0.15 <0.30 <0.13 <0.10 <0.10 <0.10 <0.10 <0.16 <0.10 <0.11 <0.11 <0.10 <0.10 NR NR NR NR NR NR NR
01/21/13 <0.10 <0.10 <0.10 <0.22 <0.10 <0.15 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 NR NR NR NR NR NR NR
07/17/13 <0.10 <0.10 <0.10 0.13 J <0.10 <0.15 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 NR NR NR NR NR NR NR
01/23/14 <0.10 <0.10 <0.10 <0.20 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 NR NR NR NR NR NR NR
07/22/14 <0.10 <0.10 <0.10 <0.20 <0.10 0.13 J <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 NR NR NR NR NR NR NR
04/21/15 <0.17 <0.17 <0.15 <0.43 <0.16 <0.12 <0.14 <0.14 <0.15 <0.16 <0.12 <0.16 <0.16 <0.14 <0.14 NR NR NR NR NR NR NR
01/12/16 <0.13 <0.13 <0.13 <0.31 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 NR NR NR NR NR NR NR
09/03/09 <0.140 <0.190 <0.150 <0.220 <0.250 1.05 <0.180 <0.140 <0.190 <0.220 0.718 J 26.2 <0.220 <0.150 <0.180 4.74 J <7.89 22.9 108 <225 <125 <225
12/21/09 <0.140 <0.190 <0.150 <0.220 <0.250 4.36 <0.180 <0.140 <0.190 <0.220 1.24 18.4 <0.220 <0.150 <0.180 NR NR NR NR NR NR NR
03/24/10 <0.140 <1.00 <0.150 <0.220 <0.250 <0.500 <0.180 <0.140 <0.190 <0.220 0.197 J 12.5 <0.220 <0.150 <0.180 <0.441 NR 4.61 NR NR NR NR
09/27/10 <0.140 <1.00 <0.150 <0.220 <0.250 <1.00 <0.180 <0.140 <0.190 <0.220 <0.150 18.8 <0.220 0.232 J <0.180 NR NR NR NR NR NR NR
03/23/11 <0.140 <1.00 <0.150 <0.220 <0.250 <1.00 <0.180 <0.140 <0.190 <0.220 0.153 J 4.58 <0.220 <0.150 <0.180 NR NR NR NR NR NR NR
09/28/11 <0.13 <0.13 <0.15 <0.30 <0.13 0.16 J <0.10 <0.10 <0.10 <0.16 0.51 15.2 0.17 J 0.33 J 0.29 J NR NR NR NR NR NR NR
03/27/12 <0.13 <0.13 0.33 J 0.15 J <0.13 9.3 <0.10 0.52 <0.10 <0.16 3.9 15.8 0.58 0.76 <0.10 NR NR NR NR NR NR NR
01/21/13 <0.10 <0.10 0.18 J <0.22 0.13 J 9.3 <0.10 0.54 0.20 J <0.10 3.1 20.6 0.44 J 0.17 J <0.10 NR NR NR NR NR NR NR
07/17/13 0.26 J <0.10 0.66 0.87 J 0.31 J 38.0 0.24 J 1.9 0.63 0.17 J 9.3 10.6 1.8 2.1 0.19 J NR NR NR NR NR NR NR
01/23/14 <0.10 <0.10 0.13 J <0.20 0.16 J 9.7 <0.10 0.67 0.25 J <0.10 2.8 13.4 0.31 J 0.12 J <0.10 NR NR NR NR NR NR NR
07/22/14 0.22 J <0.10 0.61 0.50 J 0.43 J 24.0 0.16 J 1.5 0.53 0.23 J 7.4 17.3 1.2 1.1 <0.10 NR NR NR NR NR NR NR
04/21/15 <0.17 <0.17 <0.15 <0.43 0.16 J 4.9 <0.14 0.50 0.22 J <0.16 2.3 13.0 0.30 J 0.15 J <0.14 NR NR NR NR NR NR NR
01/12/16 <0.13 <0.13 0.21 J 0.34 J 0.34 J 11.8 <0.13 1.0 0.48 J 0.22 J 5.3 16.6 0.68 0.51 <0.13 NR NR NR NR NR NR NR
10/05/16 <0.13 <0.13 0.52 0.86 J 0.49 J 29.3 0.25 J 2.1 0.71 0.15 J 9.6 11.7 1.4 2.0 0.16 J NR NR NR NR NR NR NR
07/03/17 <0.13 <0.13 0.30 J 0.46 J 0.45 J 26.1 0.19 J 1.9 0.72 <0.13 10.3 11.3 0.91 0.91 <0.13 NR NR NR NR NR NR NR
07/15/20 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS
09/28/11 <0.13 <0.13 <0.15 <0.30 <0.13 <0.10 <0.10 <0.10 <0.10 <0.16 <0.10 <0.11 <0.11 <0.10 <0.10 NR NR NR NR NR NR NR
03/27/12 <0.13 <0.13 <0.15 <0.30 <0.13 0.15 J <0.10 <0.10 <0.10 <0.16 <0.10 <0.11 <0.11 <0.10 <0.10 NR NR NR NR NR NR NR
01/21/13 <0.10 <0.10 <0.10 <0.22 <0.10 <0.15 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 NR NR NR NR NR NR NR
07/17/13 <0.10 <0.10 <0.10 <0.22 <0.10 <0.15 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 NR NR NR NR NR NR NR
01/23/14 <0.10 <0.10 <0.10 <0.20 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 NR NR NR NR NR NR NR
07/22/14 <0.10 <0.10 <0.10 <0.20 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 NR NR NR NR NR NR NR
04/21/15 <0.17 <0.17 <0.15 <0.43 <0.16 <0.12 <0.14 <0.14 <0.15 <0.16 <0.12 <0.16 <0.16 <0.14 <0.14 NR NR NR NR NR NR NR
01/12/16 <0.13 <0.13 <0.13 <0.31 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 NR NR NR NR NR NR NR
RW-1 09/24/08 126 21.8 482 1,530 9.11 136 8.54 <0.47 <0.22 1.66 53.5 13.3 105 929 292 NR NR 218 2,960 710 NR 3,780
MW-23
MW-22
MW-21
Page 6 of 7
Date: 7/24/2020 Facility ID #: 0-013970
EPA
Method
6010B
Well
ID
Date
Collected
(mm/dd/yy)
1 600 600 500 20 6 70 70 70 0.4 70 70 70 400 400 6 3 15 400 700 10,000 200
5,000 260,000 84,500 85,500 20,000 6,000 6,900 8,500 15,000 400 25,000 70,000 30,000 28,500 25,000 6,000 170 15,000 NE NE NE NEGCL(µg/l)C9-C22 Aromatics2L Standard (µg/l)IPEn-Propylbenzene1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneNaphthaleneBis(2-ethylhex yl)phthalateNaphthalenen-Butylbenzenesec-Butylbenzenetert-Butylbenzene1,2-DichloroethaneIsopropylbenzeneContaminant of Concern
BenzeneTABLE 6
SUMMARY OF GROUND WATER SAMPLE ANALYTICAL RESULTS
NOAH ROBERSON STORE (INCIDENT NO. 11759)
Analytical Method
EPA Method 6200B EPA Method 610 MADEP Methods EPH and VPH
LeadC5-C8 AliphaticsC9-C18 AliphaticsC19-C36 AliphaticsTolueneEthylbenzeneXylenesMTBE09/24/08 <0.31 <0.28 <0.31 <1.2 <0.12 <0.41 <0.39 <0.47 <0.22 <0.12 <0.24 <0.15 <0.30 <0.26 <0.27 NR NR 4.31 <100 <100 NR <100
09/03/09 <0.140 <0.190 <0.150 <0.220 <0.250 <0.500 <0.180 <0.140 <0.190 <0.220 <0.150 <0.200 <0.220 <0.150 <0.180 <1.04 <6.94 <1.50 <100 <206 <106 <206
12/21/09 <0.140 <0.190 <0.150 <0.220 <0.250 <0.500 <0.180 <0.140 <0.190 <0.220 <0.150 <0.200 <0.220 <0.150 <0.180 NR NR NR NR NR NR NR
03/24/10 <0.140 <1.00 <0.150 <0.220 <0.250 <0.500 <0.180 <0.140 <0.190 <0.220 <0.150 <0.200 <0.220 <0.150 <0.180 <0.429 NR 2.82 J NR NR NR NR
07/09/10 <0.140 <1.00 <0.150 <0.220 <0.250 <1.00 <0.180 <0.140 <0.190 <0.220 <0.150 <0.200 <0.220 <0.150 <0.180 NR NR NR NR NR NR NR
09/27/10 <0.140 <1.00 <0.150 <0.220 <0.250 <1.00 <0.180 <0.140 <0.190 <0.220 <0.150 <0.200 <0.220 <0.150 <0.180 NR NR NR NR NR NR NR
12/17/10 <0.140 <1.00 <0.150 <0.220 <0.250 <1.00 <0.180 <0.140 <0.190 <0.220 <0.150 <0.200 <0.220 <0.150 <0.180 NR NR NR NR NR NR NR
03/23/11 <0.280 <2.00 <0.300 <0.440 <0.500 <2.00 <0.360 <0.280 <0.380 <0.440 <0.300 <0.400 <0.440 <0.300 <0.360 NR NR NR NR NR NR NR
06/29/11 <0.13 <0.13 <0.15 <0.30 <0.13 <0.10 <0.10 <0.10 <0.10 <0.16 <0.10 <0.11 <0.11 <0.10 <0.10 NR NR NR NR NR NR NR
09/28/11 <0.13 <0.13 <0.15 <0.30 <0.13 <0.10 <0.10 <0.10 <0.10 <0.16 <0.10 <0.11 <0.11 <0.10 <0.10 NR NR NR NR NR NR NR
12/15/11 <0.13 <0.13 <0.15 <0.30 <0.13 <0.10 <0.10 <0.10 <0.10 <0.16 <0.10 <0.11 <0.11 <0.10 <0.10 NR NR NR NR NR NR NR
03/27/12 <0.13 <0.13 <0.15 <0.30 <0.13 <0.10 <0.10 <0.10 <0.10 <0.16 <0.10 <0.11 <0.11 <0.10 <0.10 NR NR NR NR NR NR NR
01/21/13 <0.10 <0.10 <0.10 <0.22 <0.10 <0.15 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 NR NR NR NR NR NR NR
07/17/13 <0.10 <0.10 <0.10 <0.22 <0.10 <0.15 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 NR NR NR NR NR NR NR
01/23/14 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS
04/21/15 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS
07/03/17 <0.13 <0.13 <0.13 <0.25 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 NR NR NR NR NR NR NR
01/08/19 <0.13 <0.13 <0.13 <0.25 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 NR NR NR NR NR NR NR
10/03/19 <0.13 <0.13 <0.13 <0.25 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 NR NR NR NR NR NR NR
07/15/20 <0.13 <0.13 <0.13 <0.25 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 NR NR NR NR NR NR NR
Notes:
• Results reported in µg/l (micrograms per liter).
• 2L Standard: as specified in T15A NCAC 2L.0202.
• GCL: Gross contamination level.
• NE: No established standard.
• Concentrations in bold face type exceeded the 2L Standards.
• < : Less than the method detection limit specified in the laboratory report.
• I or J: Estimated value.
• E: Indicates value exceeded laboratory calibration range.
• NS: Not sampled.
• NR: Analysis not requested.
• Monitoring wells MW-8R, MW-19 and MW-20 which were installed on 07/08/09 were destroyed prior to the September 2009 sampling event. MW-8R was subsequently repaired in December 2009.
• For other compounds reported which did not exceed the MACs, refer to the laboratory reports.
WSW-1
(former DW-
1)
Page 7 of 7
APPENDICES
APPENDIX A
State Correspondence
December 6, 2019
North East Oil, Inc.
ATTN: Mr. Lars Simonsen
Simonsen Law Firm
Post Office Box 848
Edenton, North Carolina 27932
Re: Notice of Regulatory Requirements
15A NCAC 2L .0407
Risk-based Assessment and Corrective Action
for Petroleum Underground Storage Tanks
Acknowledgement of Report Receipt
Noah Roberson Store
8941 NC Hwy 171, Williamston, NC
Martin County
Incident Number: 11759
Risk Classification: High
Ranking: H 142 D
Dear Mr. Simonsen:
The Division of Waste Management (DWM) Underground Storage Tank (UST) Section received the
Groundwater Monitoring Report (Report) dated October 25, 2019. The report has been reviewed and will
be maintained in the Washington Regional Office. The report indicates continued levels of groundwater
contamination. The subject incident has been determined by the Department, in response to North Carolina
General Statute (NCGS) 143-215.94E(e4), to be of sufficiently high priority to allow funding by the State
Trust Fund Program. Therefore, you are directed to proceed with assessment. Specifically, you are required
to:
Continue to monitor groundwater quality on a nine-month schedule.
Submit monitoring report within 30 days of receiving the analytical results. The next sampling event
should be conducted in July 2020.
Effective October 1, 2004, the Department requires that all work following the submittal of the Limited
Site Assessment Report (Title 15A NCAC 2L .0405) be preapproved if State Trust Fund reimbursement is
anticipated. To comply with this requirement, a completed Preapproval/Claim Authorization Form,
encompassing the required remedial activities, must be received in this office within 14 days of the date of
this letter. Upon completion of the preapproved activities, you should submit your claim promptly.
Reimbursement funds are budgeted based on completed preapprovals, but lengthy delays in reimbursement
can occur if claims are not submitted immediately following work completion.
Because a release or discharge has been confirmed, a Licensed Geologist or a Professional Engineer,
certified by the State of North Carolina, is required to prepare and certify all reports submitted to the
Department in accordance with Title 15A NCAC 2L .0103(e) and 2L .0111(b).
Please note that before you sell, transfer, or request a “No Further Action” determination for a property that
has not been remediated to below “unrestricted use” standards, you must file a Notice of Residual Petroleum
("Notice") with the Register of Deeds in the county where the property is located (NCGS 143B-279.9 and
143B-279.11).
Failure to comply with the State's rules in the manner and time specified may result in the assessment of
civil penalties and/or the use of other enforcement mechanisms.
If you have any questions regarding the actions or the rules mentioned in this letter, please contact me at
the address or telephone number listed below. If you have any questions regarding trust fund eligibility or
reimbursement, please contact the UST Section Trust Fund Branch at (919) 733-8486.
Sincerely,
Allison Ward
Hydrogeologist
Washington Regional Office
cc: GRI, Jackie Donnelly, via email
WaRO
APPENDIX B
Laboratory Report – Ground Water Samples
07/21/20
Technical Report for
GRI (Geological Resources Inc.)
Noah Roberson Store; 8941 NC Hwy 171, Williamston, NC
11759/2319
SGS Job Number: FA76875
Sampling Date: 07/15/20
Report to:
GRI
3502 Hayes Rd
Monroe, NC 28110
wlr@geologicalresourcesinc.com; carriekennedy@geologicalresourcesinc.com;
jjr@geologicalresourcesinc.com; nml@geologicalresourcesinc.com
ATTN: William Regenthall
Total number of pages in report:
Certifications: FL(E83510), LA(03051), KS(E-10327), IL(200063), NC(573), NJ(FL002), NY(12022), SC(96038001)
DoD ELAP(ANAB L2229), AZ(AZ0806), CA(2937), TX(T104704404), PA(68-03573), VA(460177),
AK, AR, IA, KY, MA, MS, ND, NH, NV, OK, OR, UT, WA, WV
This report shall not be reproduced, except in its entirety, without the written approval of SGS.
Test results relate only to samples analyzed.
SGS North America Inc. • 4405 Vineland Road • Suite C-15 • Orlando, FL 32811 • tel: 407-425-6700 • fax: 407-425-0707
Test results contained within this data package meet the requirements
of the National Environmental Laboratory Accreditation Program
and/or state specific certification programs as applicable.
Client Service contact: Muna Mohammed 407-425-6700
Caitlin Brice, M.S.
General Manager
Orlando, FL 07/21/20
e-Hardcopy 2.0
Automated Report
34
SGS is the sole authority for authorizing edits or modifications to this document.
Unauthorized modification of this report is strictly prohibited.
Review standard terms at: http://www.sgs.com/en/terms-and-conditions
The results set forth herein are provided by SGS North America Inc.
Please share your ideas about
how we can serve you better at:
EHS.US.CustomerCare@sgs.com
1 of 34
FA76875
Table of Contents
-1-
Sections:
Section 1: Sample Summary ...................................................................................................3
Section 2: Summary of Hits ....................................................................................................4
Section 3: Sample Results ........................................................................................................6
3.1: FA76875-1: MW-1 ........................................................................................................7
3.2: FA76875-2: MW-3 ........................................................................................................9
3.3: FA76875-3: MW-5 ........................................................................................................11
3.4: FA76875-4: MW-12 ......................................................................................................13
3.5: FA76875-5: MW-13 ......................................................................................................15
3.6: FA76875-6: WSW-1 .....................................................................................................17
Section 4: Misc. Forms ............................................................................................................19
4.1: Chain of Custody ...........................................................................................................20
Section 5: MS Volatiles - QC Data Summaries .....................................................................22
5.1: Method Blank Summary ................................................................................................23
5.2: Blank Spike Summary ...................................................................................................27
5.3: Matrix Spike Summary ..................................................................................................31
5.4: Matrix Spike/Matrix Spike Duplicate Summary ...........................................................33 123452 of 34
FA76875
SGS North America Inc.
Sample Summary
GRI (Geological Resources Inc.)
Job No:FA76875
Noah Roberson Store; 8941 NC Hwy 171, Williamston, NC
Project No: 11759/2319
Sample Collected Matrix Client
Number Date Time By Received Code Type Sample ID
This report contains results reported as ND = Not detected. The following applies:
Organics ND = Not detected above the MDL
FA76875-1 07/15/20 13:16 ER 07/16/20 AQ Ground Water MW-1
FA76875-2 07/15/20 13:23 ER 07/16/20 AQ Ground Water MW-3
FA76875-3 07/15/20 13:31 ER 07/16/20 AQ Ground Water MW-5
FA76875-4 07/15/20 13:42 ER 07/16/20 AQ Ground Water MW-12
FA76875-5 07/15/20 13:05 ER 07/16/20 AQ Ground Water MW-13
FA76875-6 07/15/20 13:50 ER 07/16/20 AQ Ground Water WSW-1
3 of 34
FA768751
Summary of Hits Page 1 of 2
Job Number:FA76875
Account:GRI (Geological Resources Inc.)
Project:Noah Roberson Store; 8941 NC Hwy 171, Williamston, NC
Collected:07/15/20
Lab Sample ID Client Sample ID Result/
Analyte Qual RL MDL Units Method
FA76875-1 MW-1
Benzene 51.8 10 2.5 ug/l SM 6200B
n-Butylbenzene 4.5 J 10 2.5 ug/l SM 6200B
sec-Butylbenzene 4.5 J 10 2.5 ug/l SM 6200B
Ethylbenzene 168 10 2.5 ug/l SM 6200B
Isopropylbenzene 30.4 10 2.5 ug/l SM 6200B
p-Isopropyltoluene 3.5 J 10 2.5 ug/l SM 6200B
Naphthalene 74.1 10 2.5 ug/l SM 6200B
n-Propylbenzene 80.2 10 2.5 ug/l SM 6200B
Toluene 6.5 J 10 2.5 ug/l SM 6200B
1,2,4-Trimethylbenzene 749 10 2.5 ug/l SM 6200B
1,3,5-Trimethylbenzene 181 10 2.5 ug/l SM 6200B
m,p-Xylene 278 20 2.5 ug/l SM 6200B
o-Xylene 75.3 10 2.5 ug/l SM 6200B
Xylene (total)353 30 5.0 ug/l SM 6200B
FA76875-2 MW-3
Benzene 1.3 0.50 0.13 ug/l SM 6200B
n-Butylbenzene 5.8 0.50 0.13 ug/l SM 6200B
sec-Butylbenzene 6.2 0.50 0.13 ug/l SM 6200B
Ethylbenzene 34.6 1.0 0.25 ug/l SM 6200B
Isopropylbenzene 14.3 0.50 0.13 ug/l SM 6200B
p-Isopropyltoluene 1.4 0.50 0.13 ug/l SM 6200B
Naphthalene 23.0 0.50 0.13 ug/l SM 6200B
n-Propylbenzene 34.5 0.50 0.13 ug/l SM 6200B
Toluene 0.20 J 0.50 0.13 ug/l SM 6200B
1,2,4-Trimethylbenzene 26.8 0.50 0.13 ug/l SM 6200B
1,3,5-Trimethylbenzene 8.3 0.50 0.13 ug/l SM 6200B
m,p-Xylene 16.3 1.0 0.13 ug/l SM 6200B
o-Xylene 1.4 0.50 0.13 ug/l SM 6200B
Xylene (total)17.8 1.5 0.25 ug/l SM 6200B
FA76875-3 MW-5
Benzene 15.2 J 25 6.3 ug/l SM 6200B
n-Butylbenzene 18.3 J 25 6.3 ug/l SM 6200B
sec-Butylbenzene 14.7 J 25 6.3 ug/l SM 6200B
Ethylbenzene 404 25 6.3 ug/l SM 6200B
Isopropylbenzene 57.2 25 6.3 ug/l SM 6200B
p-Isopropyltoluene 10.8 J 25 6.3 ug/l SM 6200B
Naphthalene 299 25 6.3 ug/l SM 6200B
n-Propylbenzene 153 25 6.3 ug/l SM 6200B
1,2,4-Trimethylbenzene 1570 25 6.3 ug/l SM 6200B
4 of 34
FA768752
Summary of Hits Page 2 of 2
Job Number:FA76875
Account:GRI (Geological Resources Inc.)
Project:Noah Roberson Store; 8941 NC Hwy 171, Williamston, NC
Collected:07/15/20
Lab Sample ID Client Sample ID Result/
Analyte Qual RL MDL Units Method
1,3,5-Trimethylbenzene 381 25 6.3 ug/l SM 6200B
m,p-Xylene 139 50 6.3 ug/l SM 6200B
o-Xylene 516 25 6.3 ug/l SM 6200B
Xylene (total)655 75 13 ug/l SM 6200B
FA76875-4 MW-12
Benzene 4.3 J 5.0 1.3 ug/l SM 6200B
n-Butylbenzene 26.7 5.0 1.3 ug/l SM 6200B
sec-Butylbenzene 17.0 5.0 1.3 ug/l SM 6200B
tert-Butylbenzene 1.7 J 5.0 1.3 ug/l SM 6200B
Ethylbenzene 119 5.0 1.3 ug/l SM 6200B
Isopropylbenzene 67.7 5.0 1.3 ug/l SM 6200B
p-Isopropyltoluene 14.3 5.0 1.3 ug/l SM 6200B
Naphthalene 395 5.0 1.3 ug/l SM 6200B
n-Propylbenzene 212 5.0 1.3 ug/l SM 6200B
1,2,4-Trimethylbenzene 513 10 2.5 ug/l SM 6200B
1,3,5-Trimethylbenzene 44.2 5.0 1.3 ug/l SM 6200B
m,p-Xylene 1.8 J 10 1.3 ug/l SM 6200B
FA76875-5 MW-13
Benzene 21.5 13 3.1 ug/l SM 6200B
n-Butylbenzene 12.3 J 13 3.1 ug/l SM 6200B
sec-Butylbenzene 11.9 J 13 3.1 ug/l SM 6200B
Ethylbenzene 494 13 3.1 ug/l SM 6200B
Isopropylbenzene 77.6 13 3.1 ug/l SM 6200B
p-Isopropyltoluene 7.1 J 13 3.1 ug/l SM 6200B
Naphthalene 300 13 3.1 ug/l SM 6200B
n-Propylbenzene 194 13 3.1 ug/l SM 6200B
1,2,4-Trimethylbenzene 1230 13 3.1 ug/l SM 6200B
1,3,5-Trimethylbenzene 352 13 3.1 ug/l SM 6200B
m,p-Xylene 587 25 3.1 ug/l SM 6200B
o-Xylene 188 13 3.1 ug/l SM 6200B
Xylene (total)775 38 6.3 ug/l SM 6200B
FA76875-6 WSW-1
Methyl Chloride 0.21 J 0.50 0.20 ug/l SM 6200B
5 of 34
FA768752
SGS North America Inc.
Sample Results
Report of Analysis
Orlando, FL
Section 3
6 of 34
FA768753
SGS North America Inc.
Report of Analysis Page 1 of 2
Client Sample ID:MW-1
Lab Sample ID:FA76875-1 Date Sampled:07/15/20
Matrix:AQ - Ground Water Date Received:07/16/20
Method:SM 6200B Percent Solids:n/a
Project:Noah Roberson Store; 8941 NC Hwy 171, Williamston, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 A0222716.D 20 07/20/20 12:33 AB n/a n/a VA2751
Run #2
Purge Volume
Run #1 10.0 ml
Run #2
VOA 6200B List
CAS No.Compound Result RL MDL Units Q
71-43-2 Benzene 51.8 10 2.5 ug/l
108-86-1 Bromobenzene ND 10 2.5 ug/l
74-97-5 Bromochloromethane ND 10 2.5 ug/l
75-27-4 Bromodichloromethane ND 10 2.5 ug/l
75-25-2 Bromoform ND 10 2.5 ug/l
104-51-8 n-Butylbenzene 4.5 10 2.5 ug/l J
135-98-8 sec-Butylbenzene 4.5 10 2.5 ug/l J
98-06-6 tert-Butylbenzene ND 10 2.5 ug/l
56-23-5 Carbon Tetrachloride ND 10 2.5 ug/l
108-90-7 Chlorobenzene ND 10 2.5 ug/l
75-00-3 Chloroethane ND 10 4.0 ug/l
67-66-3 Chloroform ND 10 2.5 ug/l
95-49-8 o-Chlorotoluene ND 10 2.5 ug/l
106-43-4 p-Chlorotoluene ND 10 2.5 ug/l
124-48-1 Dibromochloromethane ND 10 2.5 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 10 4.9 ug/l
106-93-4 1,2-Dibromoethane ND 10 2.5 ug/l
75-71-8 Dichlorodifluoromethane ND 10 4.0 ug/l
95-50-1 1,2-Dichlorobenzene ND 10 2.5 ug/l
541-73-1 1,3-Dichlorobenzene ND 10 2.5 ug/l
106-46-7 1,4-Dichlorobenzene ND 10 2.5 ug/l
75-34-3 1,1-Dichloroethane ND 10 2.5 ug/l
107-06-2 1,2-Dichloroethane ND 10 2.5 ug/l
75-35-4 1,1-Dichloroethylene ND 10 2.5 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 10 2.5 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 10 2.5 ug/l
78-87-5 1,2-Dichloropropane ND 10 2.5 ug/l
142-28-9 1,3-Dichloropropane ND 10 2.5 ug/l
594-20-7 2,2-Dichloropropane ND 10 2.5 ug/l
563-58-6 1,1-Dichloropropene ND 10 2.5 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 10 2.5 ug/l
10061-02-6 trans-1,3-Dichloropropene ND 10 2.5 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
7 of 34
FA7687533.1
SGS North America Inc.
Report of Analysis Page 2 of 2
Client Sample ID:MW-1
Lab Sample ID:FA76875-1 Date Sampled:07/15/20
Matrix:AQ - Ground Water Date Received:07/16/20
Method:SM 6200B Percent Solids:n/a
Project:Noah Roberson Store; 8941 NC Hwy 171, Williamston, NC
VOA 6200B List
CAS No.Compound Result RL MDL Units Q
108-20-3 Di-Isopropyl Ether ND 10 2.5 ug/l
100-41-4 Ethylbenzene 168 10 2.5 ug/l
87-68-3 Hexachlorobutadiene ND 10 2.5 ug/l
98-82-8 Isopropylbenzene 30.4 10 2.5 ug/l
99-87-6 p-Isopropyltoluene 3.5 10 2.5 ug/l J
74-83-9 Methyl Bromide ND 10 4.0 ug/l
74-87-3 Methyl Chloride ND 10 4.0 ug/l
74-95-3 Methylene Bromide ND 10 2.5 ug/l
75-09-2 Methylene Chloride ND 40 20 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 10 2.5 ug/l
91-20-3 Naphthalene 74.1 10 2.5 ug/l
103-65-1 n-Propylbenzene 80.2 10 2.5 ug/l
100-42-5 Styrene ND 10 2.5 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 10 2.5 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 10 2.5 ug/l
127-18-4 Tetrachloroethylene ND 10 2.5 ug/l
108-88-3 Toluene 6.5 10 2.5 ug/l J
87-61-6 1,2,3-Trichlorobenzene ND 10 2.5 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 10 2.5 ug/l
71-55-6 1,1,1-Trichloroethane ND 10 2.5 ug/l
79-00-5 1,1,2-Trichloroethane ND 10 2.5 ug/l
79-01-6 Trichloroethylene ND 10 2.5 ug/l
75-69-4 Trichlorofluoromethane ND 10 4.0 ug/l
96-18-4 1,2,3-Trichloropropane ND 10 2.5 ug/l
95-63-6 1,2,4-Trimethylbenzene 749 10 2.5 ug/l
108-67-8 1,3,5-Trimethylbenzene 181 10 2.5 ug/l
75-01-4 Vinyl Chloride ND 10 2.5 ug/l
m,p-Xylene 278 20 2.5 ug/l
95-47-6 o-Xylene 75.3 10 2.5 ug/l
1330-20-7 Xylene (total)353 30 5.0 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
1868-53-7 Dibromofluoromethane 94%70-130%
17060-07-0 1,2-Dichloroethane-D4 99%70-130%
2037-26-5 Toluene-D8 108%70-130%
460-00-4 4-Bromofluorobenzene 103%70-130%
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
8 of 34
FA7687533.1
SGS North America Inc.
Report of Analysis Page 1 of 2
Client Sample ID:MW-3
Lab Sample ID:FA76875-2 Date Sampled:07/15/20
Matrix:AQ - Ground Water Date Received:07/16/20
Method:SM 6200B Percent Solids:n/a
Project:Noah Roberson Store; 8941 NC Hwy 171, Williamston, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 E103897.D 1 07/17/20 10:56 AB n/a n/a VE2334
Run #2 A0222717.D 2 07/20/20 12:56 AB n/a n/a VA2751
Purge Volume
Run #1 10.0 ml
Run #2 10.0 ml
VOA 6200B List
CAS No.Compound Result RL MDL Units Q
71-43-2 Benzene 1.3 0.50 0.13 ug/l
108-86-1 Bromobenzene ND 0.50 0.13 ug/l
74-97-5 Bromochloromethane ND 0.50 0.13 ug/l
75-27-4 Bromodichloromethane ND 0.50 0.13 ug/l
75-25-2 Bromoform ND 0.50 0.13 ug/l
104-51-8 n-Butylbenzene 5.8 0.50 0.13 ug/l
135-98-8 sec-Butylbenzene 6.2 0.50 0.13 ug/l
98-06-6 tert-Butylbenzene ND 0.50 0.13 ug/l
56-23-5 Carbon Tetrachloride ND 0.50 0.13 ug/l
108-90-7 Chlorobenzene ND 0.50 0.13 ug/l
75-00-3 Chloroethane a ND 0.50 0.20 ug/l
67-66-3 Chloroform ND 0.50 0.13 ug/l
95-49-8 o-Chlorotoluene ND 0.50 0.13 ug/l
106-43-4 p-Chlorotoluene ND 0.50 0.13 ug/l
124-48-1 Dibromochloromethane ND 0.50 0.13 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 0.50 0.25 ug/l
106-93-4 1,2-Dibromoethane ND 0.50 0.13 ug/l
75-71-8 Dichlorodifluoromethane ND 0.50 0.20 ug/l
95-50-1 1,2-Dichlorobenzene ND 0.50 0.13 ug/l
541-73-1 1,3-Dichlorobenzene ND 0.50 0.13 ug/l
106-46-7 1,4-Dichlorobenzene ND 0.50 0.13 ug/l
75-34-3 1,1-Dichloroethane ND 0.50 0.13 ug/l
107-06-2 1,2-Dichloroethane ND 0.50 0.13 ug/l
75-35-4 1,1-Dichloroethylene ND 0.50 0.13 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 0.50 0.13 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 0.50 0.13 ug/l
78-87-5 1,2-Dichloropropane ND 0.50 0.13 ug/l
142-28-9 1,3-Dichloropropane ND 0.50 0.13 ug/l
594-20-7 2,2-Dichloropropane ND 0.50 0.13 ug/l
563-58-6 1,1-Dichloropropene ND 0.50 0.13 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 0.50 0.13 ug/l
10061-02-6 trans-1,3-Dichloropropene ND 0.50 0.13 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
9 of 34
FA7687533.2
SGS North America Inc.
Report of Analysis Page 2 of 2
Client Sample ID:MW-3
Lab Sample ID:FA76875-2 Date Sampled:07/15/20
Matrix:AQ - Ground Water Date Received:07/16/20
Method:SM 6200B Percent Solids:n/a
Project:Noah Roberson Store; 8941 NC Hwy 171, Williamston, NC
VOA 6200B List
CAS No.Compound Result RL MDL Units Q
108-20-3 Di-Isopropyl Ether ND 0.50 0.13 ug/l
100-41-4 Ethylbenzene 34.6 b 1.0 0.25 ug/l
87-68-3 Hexachlorobutadiene ND 0.50 0.13 ug/l
98-82-8 Isopropylbenzene 14.3 0.50 0.13 ug/l
99-87-6 p-Isopropyltoluene 1.4 0.50 0.13 ug/l
74-83-9 Methyl Bromide ND 0.50 0.20 ug/l
74-87-3 Methyl Chloride ND 0.50 0.20 ug/l
74-95-3 Methylene Bromide ND 0.50 0.13 ug/l
75-09-2 Methylene Chloride ND 2.0 1.0 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 0.50 0.13 ug/l
91-20-3 Naphthalene 23.0 0.50 0.13 ug/l
103-65-1 n-Propylbenzene 34.5 0.50 0.13 ug/l
100-42-5 Styrene ND 0.50 0.13 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.13 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.50 0.13 ug/l
127-18-4 Tetrachloroethylene ND 0.50 0.13 ug/l
108-88-3 Toluene 0.20 0.50 0.13 ug/l J
87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.13 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.13 ug/l
71-55-6 1,1,1-Trichloroethane ND 0.50 0.13 ug/l
79-00-5 1,1,2-Trichloroethane ND 0.50 0.13 ug/l
79-01-6 Trichloroethylene ND 0.50 0.13 ug/l
75-69-4 Trichlorofluoromethane ND 0.50 0.20 ug/l
96-18-4 1,2,3-Trichloropropane ND 0.50 0.13 ug/l
95-63-6 1,2,4-Trimethylbenzene 26.8 0.50 0.13 ug/l
108-67-8 1,3,5-Trimethylbenzene 8.3 0.50 0.13 ug/l
75-01-4 Vinyl Chloride ND 0.50 0.13 ug/l
m,p-Xylene 16.3 1.0 0.13 ug/l
95-47-6 o-Xylene 1.4 0.50 0.13 ug/l
1330-20-7 Xylene (total)17.8 1.5 0.25 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
1868-53-7 Dibromofluoromethane 101%97%70-130%
17060-07-0 1,2-Dichloroethane-D4 110%100%70-130%
2037-26-5 Toluene-D8 90%100%70-130%
460-00-4 4-Bromofluorobenzene 103%129%70-130%
(a) Associated CCV outside of control limits high, sample was ND.
(b) Result is from Run# 2
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
10 of 34
FA7687533.2
SGS North America Inc.
Report of Analysis Page 1 of 2
Client Sample ID:MW-5
Lab Sample ID:FA76875-3 Date Sampled:07/15/20
Matrix:AQ - Ground Water Date Received:07/16/20
Method:SM 6200B Percent Solids:n/a
Project:Noah Roberson Store; 8941 NC Hwy 171, Williamston, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 A0222718.D 50 07/20/20 13:19 AB n/a n/a VA2751
Run #2
Purge Volume
Run #1 10.0 ml
Run #2
VOA 6200B List
CAS No.Compound Result RL MDL Units Q
71-43-2 Benzene 15.2 25 6.3 ug/l J
108-86-1 Bromobenzene ND 25 6.3 ug/l
74-97-5 Bromochloromethane ND 25 6.3 ug/l
75-27-4 Bromodichloromethane ND 25 6.3 ug/l
75-25-2 Bromoform ND 25 6.3 ug/l
104-51-8 n-Butylbenzene 18.3 25 6.3 ug/l J
135-98-8 sec-Butylbenzene 14.7 25 6.3 ug/l J
98-06-6 tert-Butylbenzene ND 25 6.3 ug/l
56-23-5 Carbon Tetrachloride ND 25 6.3 ug/l
108-90-7 Chlorobenzene ND 25 6.3 ug/l
75-00-3 Chloroethane ND 25 10 ug/l
67-66-3 Chloroform ND 25 6.3 ug/l
95-49-8 o-Chlorotoluene ND 25 6.3 ug/l
106-43-4 p-Chlorotoluene ND 25 6.3 ug/l
124-48-1 Dibromochloromethane ND 25 6.3 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 25 12 ug/l
106-93-4 1,2-Dibromoethane ND 25 6.3 ug/l
75-71-8 Dichlorodifluoromethane ND 25 10 ug/l
95-50-1 1,2-Dichlorobenzene ND 25 6.3 ug/l
541-73-1 1,3-Dichlorobenzene ND 25 6.3 ug/l
106-46-7 1,4-Dichlorobenzene ND 25 6.3 ug/l
75-34-3 1,1-Dichloroethane ND 25 6.3 ug/l
107-06-2 1,2-Dichloroethane ND 25 6.3 ug/l
75-35-4 1,1-Dichloroethylene ND 25 6.3 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 25 6.3 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 25 6.3 ug/l
78-87-5 1,2-Dichloropropane ND 25 6.3 ug/l
142-28-9 1,3-Dichloropropane ND 25 6.3 ug/l
594-20-7 2,2-Dichloropropane ND 25 6.3 ug/l
563-58-6 1,1-Dichloropropene ND 25 6.3 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 25 6.3 ug/l
10061-02-6 trans-1,3-Dichloropropene ND 25 6.3 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
11 of 34
FA7687533.3
SGS North America Inc.
Report of Analysis Page 2 of 2
Client Sample ID:MW-5
Lab Sample ID:FA76875-3 Date Sampled:07/15/20
Matrix:AQ - Ground Water Date Received:07/16/20
Method:SM 6200B Percent Solids:n/a
Project:Noah Roberson Store; 8941 NC Hwy 171, Williamston, NC
VOA 6200B List
CAS No.Compound Result RL MDL Units Q
108-20-3 Di-Isopropyl Ether ND 25 6.3 ug/l
100-41-4 Ethylbenzene 404 25 6.3 ug/l
87-68-3 Hexachlorobutadiene ND 25 6.3 ug/l
98-82-8 Isopropylbenzene 57.2 25 6.3 ug/l
99-87-6 p-Isopropyltoluene 10.8 25 6.3 ug/l J
74-83-9 Methyl Bromide ND 25 10 ug/l
74-87-3 Methyl Chloride ND 25 10 ug/l
74-95-3 Methylene Bromide ND 25 6.3 ug/l
75-09-2 Methylene Chloride ND 100 50 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 25 6.3 ug/l
91-20-3 Naphthalene 299 25 6.3 ug/l
103-65-1 n-Propylbenzene 153 25 6.3 ug/l
100-42-5 Styrene ND 25 6.3 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 25 6.3 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 25 6.3 ug/l
127-18-4 Tetrachloroethylene ND 25 6.3 ug/l
108-88-3 Toluene ND 25 6.3 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 25 6.3 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 25 6.3 ug/l
71-55-6 1,1,1-Trichloroethane ND 25 6.3 ug/l
79-00-5 1,1,2-Trichloroethane ND 25 6.3 ug/l
79-01-6 Trichloroethylene ND 25 6.3 ug/l
75-69-4 Trichlorofluoromethane ND 25 10 ug/l
96-18-4 1,2,3-Trichloropropane ND 25 6.3 ug/l
95-63-6 1,2,4-Trimethylbenzene 1570 25 6.3 ug/l
108-67-8 1,3,5-Trimethylbenzene 381 25 6.3 ug/l
75-01-4 Vinyl Chloride ND 25 6.3 ug/l
m,p-Xylene 139 50 6.3 ug/l
95-47-6 o-Xylene 516 25 6.3 ug/l
1330-20-7 Xylene (total)655 75 13 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
1868-53-7 Dibromofluoromethane 96%70-130%
17060-07-0 1,2-Dichloroethane-D4 101%70-130%
2037-26-5 Toluene-D8 104%70-130%
460-00-4 4-Bromofluorobenzene 109%70-130%
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
12 of 34
FA7687533.3
SGS North America Inc.
Report of Analysis Page 1 of 2
Client Sample ID:MW-12
Lab Sample ID:FA76875-4 Date Sampled:07/15/20
Matrix:AQ - Ground Water Date Received:07/16/20
Method:SM 6200B Percent Solids:n/a
Project:Noah Roberson Store; 8941 NC Hwy 171, Williamston, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 E103901.D 10 07/17/20 12:27 AB n/a n/a VE2334
Run #2 A0222719.D 20 07/20/20 13:41 AB n/a n/a VA2751
Purge Volume
Run #1 10.0 ml
Run #2 10.0 ml
VOA 6200B List
CAS No.Compound Result RL MDL Units Q
71-43-2 Benzene 4.3 5.0 1.3 ug/l J
108-86-1 Bromobenzene ND 5.0 1.3 ug/l
74-97-5 Bromochloromethane ND 5.0 1.3 ug/l
75-27-4 Bromodichloromethane ND 5.0 1.3 ug/l
75-25-2 Bromoform ND 5.0 1.3 ug/l
104-51-8 n-Butylbenzene 26.7 5.0 1.3 ug/l
135-98-8 sec-Butylbenzene 17.0 5.0 1.3 ug/l
98-06-6 tert-Butylbenzene 1.7 5.0 1.3 ug/l J
56-23-5 Carbon Tetrachloride ND 5.0 1.3 ug/l
108-90-7 Chlorobenzene ND 5.0 1.3 ug/l
75-00-3 Chloroethane a ND 5.0 2.0 ug/l
67-66-3 Chloroform ND 5.0 1.3 ug/l
95-49-8 o-Chlorotoluene ND 5.0 1.3 ug/l
106-43-4 p-Chlorotoluene ND 5.0 1.3 ug/l
124-48-1 Dibromochloromethane ND 5.0 1.3 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 5.0 2.5 ug/l
106-93-4 1,2-Dibromoethane ND 5.0 1.3 ug/l
75-71-8 Dichlorodifluoromethane ND 5.0 2.0 ug/l
95-50-1 1,2-Dichlorobenzene ND 5.0 1.3 ug/l
541-73-1 1,3-Dichlorobenzene ND 5.0 1.3 ug/l
106-46-7 1,4-Dichlorobenzene ND 5.0 1.3 ug/l
75-34-3 1,1-Dichloroethane ND 5.0 1.3 ug/l
107-06-2 1,2-Dichloroethane ND 5.0 1.3 ug/l
75-35-4 1,1-Dichloroethylene ND 5.0 1.3 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 5.0 1.3 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 5.0 1.3 ug/l
78-87-5 1,2-Dichloropropane ND 5.0 1.3 ug/l
142-28-9 1,3-Dichloropropane ND 5.0 1.3 ug/l
594-20-7 2,2-Dichloropropane ND 5.0 1.3 ug/l
563-58-6 1,1-Dichloropropene ND 5.0 1.3 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 5.0 1.3 ug/l
10061-02-6 trans-1,3-Dichloropropene ND 5.0 1.3 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
13 of 34
FA7687533.4
SGS North America Inc.
Report of Analysis Page 2 of 2
Client Sample ID:MW-12
Lab Sample ID:FA76875-4 Date Sampled:07/15/20
Matrix:AQ - Ground Water Date Received:07/16/20
Method:SM 6200B Percent Solids:n/a
Project:Noah Roberson Store; 8941 NC Hwy 171, Williamston, NC
VOA 6200B List
CAS No.Compound Result RL MDL Units Q
108-20-3 Di-Isopropyl Ether ND 5.0 1.3 ug/l
100-41-4 Ethylbenzene 119 5.0 1.3 ug/l
87-68-3 Hexachlorobutadiene ND 5.0 1.3 ug/l
98-82-8 Isopropylbenzene 67.7 5.0 1.3 ug/l
99-87-6 p-Isopropyltoluene 14.3 5.0 1.3 ug/l
74-83-9 Methyl Bromide ND 5.0 2.0 ug/l
74-87-3 Methyl Chloride ND 5.0 2.0 ug/l
74-95-3 Methylene Bromide ND 5.0 1.3 ug/l
75-09-2 Methylene Chloride ND 20 10 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 5.0 1.3 ug/l
91-20-3 Naphthalene 395 5.0 1.3 ug/l
103-65-1 n-Propylbenzene 212 5.0 1.3 ug/l
100-42-5 Styrene ND 5.0 1.3 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 5.0 1.3 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 5.0 1.3 ug/l
127-18-4 Tetrachloroethylene ND 5.0 1.3 ug/l
108-88-3 Toluene ND 5.0 1.3 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 5.0 1.3 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 5.0 1.3 ug/l
71-55-6 1,1,1-Trichloroethane ND 5.0 1.3 ug/l
79-00-5 1,1,2-Trichloroethane ND 5.0 1.3 ug/l
79-01-6 Trichloroethylene ND 5.0 1.3 ug/l
75-69-4 Trichlorofluoromethane ND 5.0 2.0 ug/l
96-18-4 1,2,3-Trichloropropane ND 5.0 1.3 ug/l
95-63-6 1,2,4-Trimethylbenzene 513 b 10 2.5 ug/l
108-67-8 1,3,5-Trimethylbenzene 44.2 5.0 1.3 ug/l
75-01-4 Vinyl Chloride ND 5.0 1.3 ug/l
m,p-Xylene 1.8 10 1.3 ug/l J
95-47-6 o-Xylene ND 5.0 1.3 ug/l
1330-20-7 Xylene (total)ND 15 2.5 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
1868-53-7 Dibromofluoromethane 101%98%70-130%
17060-07-0 1,2-Dichloroethane-D4 107%103%70-130%
2037-26-5 Toluene-D8 101%106%70-130%
460-00-4 4-Bromofluorobenzene 99%106%70-130%
(a) Associated CCV outside of control limits high, sample was ND.
(b) Result is from Run# 2
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
14 of 34
FA7687533.4
SGS North America Inc.
Report of Analysis Page 1 of 2
Client Sample ID:MW-13
Lab Sample ID:FA76875-5 Date Sampled:07/15/20
Matrix:AQ - Ground Water Date Received:07/16/20
Method:SM 6200B Percent Solids:n/a
Project:Noah Roberson Store; 8941 NC Hwy 171, Williamston, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 E103912.D 25 07/17/20 16:39 AB n/a n/a VE2334
Run #2
Purge Volume
Run #1 10.0 ml
Run #2
VOA 6200B List
CAS No.Compound Result RL MDL Units Q
71-43-2 Benzene 21.5 13 3.1 ug/l
108-86-1 Bromobenzene ND 13 3.1 ug/l
74-97-5 Bromochloromethane ND 13 3.1 ug/l
75-27-4 Bromodichloromethane ND 13 3.1 ug/l
75-25-2 Bromoform ND 13 3.1 ug/l
104-51-8 n-Butylbenzene 12.3 13 3.1 ug/l J
135-98-8 sec-Butylbenzene 11.9 13 3.1 ug/l J
98-06-6 tert-Butylbenzene ND 13 3.1 ug/l
56-23-5 Carbon Tetrachloride ND 13 3.1 ug/l
108-90-7 Chlorobenzene ND 13 3.1 ug/l
75-00-3 Chloroethane a ND 13 5.0 ug/l
67-66-3 Chloroform ND 13 3.1 ug/l
95-49-8 o-Chlorotoluene ND 13 3.1 ug/l
106-43-4 p-Chlorotoluene ND 13 3.1 ug/l
124-48-1 Dibromochloromethane ND 13 3.1 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 13 6.2 ug/l
106-93-4 1,2-Dibromoethane ND 13 3.1 ug/l
75-71-8 Dichlorodifluoromethane ND 13 5.0 ug/l
95-50-1 1,2-Dichlorobenzene ND 13 3.1 ug/l
541-73-1 1,3-Dichlorobenzene ND 13 3.1 ug/l
106-46-7 1,4-Dichlorobenzene ND 13 3.1 ug/l
75-34-3 1,1-Dichloroethane ND 13 3.1 ug/l
107-06-2 1,2-Dichloroethane ND 13 3.1 ug/l
75-35-4 1,1-Dichloroethylene ND 13 3.1 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 13 3.1 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 13 3.1 ug/l
78-87-5 1,2-Dichloropropane ND 13 3.1 ug/l
142-28-9 1,3-Dichloropropane ND 13 3.1 ug/l
594-20-7 2,2-Dichloropropane ND 13 3.1 ug/l
563-58-6 1,1-Dichloropropene ND 13 3.1 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 13 3.1 ug/l
10061-02-6 trans-1,3-Dichloropropene ND 13 3.1 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
15 of 34
FA7687533.5
SGS North America Inc.
Report of Analysis Page 2 of 2
Client Sample ID:MW-13
Lab Sample ID:FA76875-5 Date Sampled:07/15/20
Matrix:AQ - Ground Water Date Received:07/16/20
Method:SM 6200B Percent Solids:n/a
Project:Noah Roberson Store; 8941 NC Hwy 171, Williamston, NC
VOA 6200B List
CAS No.Compound Result RL MDL Units Q
108-20-3 Di-Isopropyl Ether ND 13 3.1 ug/l
100-41-4 Ethylbenzene 494 13 3.1 ug/l
87-68-3 Hexachlorobutadiene ND 13 3.1 ug/l
98-82-8 Isopropylbenzene 77.6 13 3.1 ug/l
99-87-6 p-Isopropyltoluene 7.1 13 3.1 ug/l J
74-83-9 Methyl Bromide ND 13 5.0 ug/l
74-87-3 Methyl Chloride ND 13 5.0 ug/l
74-95-3 Methylene Bromide ND 13 3.1 ug/l
75-09-2 Methylene Chloride ND 50 25 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 13 3.1 ug/l
91-20-3 Naphthalene 300 13 3.1 ug/l
103-65-1 n-Propylbenzene 194 13 3.1 ug/l
100-42-5 Styrene ND 13 3.1 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 13 3.1 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 13 3.1 ug/l
127-18-4 Tetrachloroethylene ND 13 3.1 ug/l
108-88-3 Toluene ND 13 3.1 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 13 3.1 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 13 3.1 ug/l
71-55-6 1,1,1-Trichloroethane ND 13 3.1 ug/l
79-00-5 1,1,2-Trichloroethane ND 13 3.1 ug/l
79-01-6 Trichloroethylene ND 13 3.1 ug/l
75-69-4 Trichlorofluoromethane ND 13 5.0 ug/l
96-18-4 1,2,3-Trichloropropane ND 13 3.1 ug/l
95-63-6 1,2,4-Trimethylbenzene 1230 13 3.1 ug/l
108-67-8 1,3,5-Trimethylbenzene 352 13 3.1 ug/l
75-01-4 Vinyl Chloride ND 13 3.1 ug/l
m,p-Xylene 587 25 3.1 ug/l
95-47-6 o-Xylene 188 13 3.1 ug/l
1330-20-7 Xylene (total)775 38 6.3 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
1868-53-7 Dibromofluoromethane 105%70-130%
17060-07-0 1,2-Dichloroethane-D4 110%70-130%
2037-26-5 Toluene-D8 102%70-130%
460-00-4 4-Bromofluorobenzene 99%70-130%
(a) Associated CCV outside of control limits high, sample was ND.
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
16 of 34
FA7687533.5
SGS North America Inc.
Report of Analysis Page 1 of 2
Client Sample ID:WSW-1
Lab Sample ID:FA76875-6 Date Sampled:07/15/20
Matrix:AQ - Ground Water Date Received:07/16/20
Method:SM 6200B Percent Solids:n/a
Project:Noah Roberson Store; 8941 NC Hwy 171, Williamston, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 A0222711.D 1 07/20/20 10:40 AB n/a n/a VA2751
Run #2
Purge Volume
Run #1 10.0 ml
Run #2
VOA 6200B List
CAS No.Compound Result RL MDL Units Q
71-43-2 Benzene ND 0.50 0.13 ug/l
108-86-1 Bromobenzene ND 0.50 0.13 ug/l
74-97-5 Bromochloromethane ND 0.50 0.13 ug/l
75-27-4 Bromodichloromethane ND 0.50 0.13 ug/l
75-25-2 Bromoform ND 0.50 0.13 ug/l
104-51-8 n-Butylbenzene ND 0.50 0.13 ug/l
135-98-8 sec-Butylbenzene ND 0.50 0.13 ug/l
98-06-6 tert-Butylbenzene ND 0.50 0.13 ug/l
56-23-5 Carbon Tetrachloride ND 0.50 0.13 ug/l
108-90-7 Chlorobenzene ND 0.50 0.13 ug/l
75-00-3 Chloroethane ND 0.50 0.20 ug/l
67-66-3 Chloroform ND 0.50 0.13 ug/l
95-49-8 o-Chlorotoluene ND 0.50 0.13 ug/l
106-43-4 p-Chlorotoluene ND 0.50 0.13 ug/l
124-48-1 Dibromochloromethane ND 0.50 0.13 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 0.50 0.25 ug/l
106-93-4 1,2-Dibromoethane ND 0.50 0.13 ug/l
75-71-8 Dichlorodifluoromethane ND 0.50 0.20 ug/l
95-50-1 1,2-Dichlorobenzene ND 0.50 0.13 ug/l
541-73-1 1,3-Dichlorobenzene ND 0.50 0.13 ug/l
106-46-7 1,4-Dichlorobenzene ND 0.50 0.13 ug/l
75-34-3 1,1-Dichloroethane ND 0.50 0.13 ug/l
107-06-2 1,2-Dichloroethane ND 0.50 0.13 ug/l
75-35-4 1,1-Dichloroethylene ND 0.50 0.13 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 0.50 0.13 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 0.50 0.13 ug/l
78-87-5 1,2-Dichloropropane ND 0.50 0.13 ug/l
142-28-9 1,3-Dichloropropane ND 0.50 0.13 ug/l
594-20-7 2,2-Dichloropropane ND 0.50 0.13 ug/l
563-58-6 1,1-Dichloropropene ND 0.50 0.13 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 0.50 0.13 ug/l
10061-02-6 trans-1,3-Dichloropropene ND 0.50 0.13 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
17 of 34
FA7687533.6
SGS North America Inc.
Report of Analysis Page 2 of 2
Client Sample ID:WSW-1
Lab Sample ID:FA76875-6 Date Sampled:07/15/20
Matrix:AQ - Ground Water Date Received:07/16/20
Method:SM 6200B Percent Solids:n/a
Project:Noah Roberson Store; 8941 NC Hwy 171, Williamston, NC
VOA 6200B List
CAS No.Compound Result RL MDL Units Q
108-20-3 Di-Isopropyl Ether ND 0.50 0.13 ug/l
100-41-4 Ethylbenzene ND 0.50 0.13 ug/l
87-68-3 Hexachlorobutadiene ND 0.50 0.13 ug/l
98-82-8 Isopropylbenzene ND 0.50 0.13 ug/l
99-87-6 p-Isopropyltoluene ND 0.50 0.13 ug/l
74-83-9 Methyl Bromide ND 0.50 0.20 ug/l
74-87-3 Methyl Chloride 0.21 0.50 0.20 ug/l J
74-95-3 Methylene Bromide ND 0.50 0.13 ug/l
75-09-2 Methylene Chloride ND 2.0 1.0 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 0.50 0.13 ug/l
91-20-3 Naphthalene ND 0.50 0.13 ug/l
103-65-1 n-Propylbenzene ND 0.50 0.13 ug/l
100-42-5 Styrene ND 0.50 0.13 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.13 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.50 0.13 ug/l
127-18-4 Tetrachloroethylene ND 0.50 0.13 ug/l
108-88-3 Toluene ND 0.50 0.13 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.13 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.13 ug/l
71-55-6 1,1,1-Trichloroethane ND 0.50 0.13 ug/l
79-00-5 1,1,2-Trichloroethane ND 0.50 0.13 ug/l
79-01-6 Trichloroethylene ND 0.50 0.13 ug/l
75-69-4 Trichlorofluoromethane ND 0.50 0.20 ug/l
96-18-4 1,2,3-Trichloropropane ND 0.50 0.13 ug/l
95-63-6 1,2,4-Trimethylbenzene ND 0.50 0.13 ug/l
108-67-8 1,3,5-Trimethylbenzene ND 0.50 0.13 ug/l
75-01-4 Vinyl Chloride ND 0.50 0.13 ug/l
m,p-Xylene ND 1.0 0.13 ug/l
95-47-6 o-Xylene ND 0.50 0.13 ug/l
1330-20-7 Xylene (total)ND 1.5 0.25 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
1868-53-7 Dibromofluoromethane 101%70-130%
17060-07-0 1,2-Dichloroethane-D4 103%70-130%
2037-26-5 Toluene-D8 107%70-130%
460-00-4 4-Bromofluorobenzene 108%70-130%
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
18 of 34
FA7687533.6
SGS North America Inc.
Misc. Forms
Custody Documents and Other Forms
Includes the following where applicable:
• Chain of Custody
Orlando, FL
Section 4
19 of 34
FA768754
FA76875: Chain of Custody
Page 1 of 2
20 of 34
FA7687544.1
Job Number:FA76875 Client:GEOLOGICAL RESOURCES INC.
Date / Time Received:7/16/2020 9:45:00 AM Delivery Method:FEDEX
Project:NOAH ROBERSON STORE
Airbill #'s:
Cooler Information
1. Custody Seals Present
2. Custody Seals Intact
4. Cooler temp verification
3. Temp criteria achieved
5. Cooler media
IR Gun
Ice (Bag)
Trip Blank Information
1. Trip Blank present / cooler
2. Trip Blank listed on COC
2. Samples preserved properly
Sample Information
1. Sample labels present on bottles
5. Sample recvd within HT
4. Condition of sample
3. Sufficient volume/containers recvd for analysis:
Intact
Comments FOR SAMPLE 4 WE RECEIVED ONE SAMPLE "MW-12 13:42" AND TWO SAMPLES LABLED "MW-5 13:42"
TIME COLLECTED INDICATES POSSIBLE MISLABEL
SM001Rev. Date 05/24/17
SGS Sample Receipt Summary
Cooler Temps (Raw Measured) °C:
Cooler Temps (Corrected) °C:
Cooler 1: (4.4);
Cooler 1: (4.2);
3. Type Of TB Received
W or S N/A
6. Dates/Times/IDs on COC match Sample Label
7. VOCs have headspace
8. Bottles received for unspecified tests
9. Compositing instructions clear
10. Voa Soil Kits/Jars received past 48hrs?
11. % Solids Jar received?
Misc. Information
25-Gram 5-GramNumber of Encores:Number of 5035 Field Kits:Number of Lab Filtered Metals:
Test Strip Lot #s:pH 0-3 230315 pH 10-12 219813A Other: (Specify)
Y or N N/A
Y or N
Therm ID:IR 1; Therm CF:-0.2; # of Coolers:1
Y or N N/A
12. Residual Chlorine Present?
Residual Chlorine Test Strip Lot #:
Technician:Reviewer:ADAMK Date:Date:7/16/2020 9:45:00 AM
FA76875: Chain of Custody
Page 2 of 2
21 of 34
FA7687544.1
SGS North America Inc.
MS Volatiles
QC Data Summaries
Includes the following where applicable:
• Method Blank Summaries
• Blank Spike Summaries
• Matrix Spike and Duplicate Summaries
Orlando, FL
Section 5
22 of 34
FA768755
Method Blank Summary Page 1 of 2
Job Number:FA76875
Account:GRINCC GRI (Geological Resources Inc.)
Project:Noah Roberson Store; 8941 NC Hwy 171, Williamston, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
VE2334-MB E103894.D 1 07/17/20 AB n/a n/a VE2334
The QC reported here applies to the following samples:Method: SM 6200B
FA76875-2, FA76875-4, FA76875-5
CAS No.Compound Result RL MDL Units Q
71-43-2 Benzene ND 0.50 0.13 ug/l
108-86-1 Bromobenzene ND 0.50 0.13 ug/l
74-97-5 Bromochloromethane ND 0.50 0.13 ug/l
75-27-4 Bromodichloromethane ND 0.50 0.13 ug/l
75-25-2 Bromoform ND 0.50 0.13 ug/l
104-51-8 n-Butylbenzene ND 0.50 0.13 ug/l
135-98-8 sec-Butylbenzene ND 0.50 0.13 ug/l
98-06-6 tert-Butylbenzene ND 0.50 0.13 ug/l
56-23-5 Carbon Tetrachloride ND 0.50 0.13 ug/l
108-90-7 Chlorobenzene ND 0.50 0.13 ug/l
75-00-3 Chloroethane ND 0.50 0.20 ug/l
67-66-3 Chloroform ND 0.50 0.13 ug/l
95-49-8 o-Chlorotoluene ND 0.50 0.13 ug/l
106-43-4 p-Chlorotoluene ND 0.50 0.13 ug/l
124-48-1 Dibromochloromethane ND 0.50 0.13 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 0.50 0.25 ug/l
106-93-4 1,2-Dibromoethane ND 0.50 0.13 ug/l
75-71-8 Dichlorodifluoromethane ND 0.50 0.20 ug/l
95-50-1 1,2-Dichlorobenzene ND 0.50 0.13 ug/l
541-73-1 1,3-Dichlorobenzene ND 0.50 0.13 ug/l
106-46-7 1,4-Dichlorobenzene ND 0.50 0.13 ug/l
75-34-3 1,1-Dichloroethane ND 0.50 0.13 ug/l
107-06-2 1,2-Dichloroethane ND 0.50 0.13 ug/l
75-35-4 1,1-Dichloroethylene ND 0.50 0.13 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 0.50 0.13 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 0.50 0.13 ug/l
78-87-5 1,2-Dichloropropane ND 0.50 0.13 ug/l
142-28-9 1,3-Dichloropropane ND 0.50 0.13 ug/l
594-20-7 2,2-Dichloropropane ND 0.50 0.13 ug/l
563-58-6 1,1-Dichloropropene ND 0.50 0.13 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 0.50 0.13 ug/l
10061-02-6 trans-1,3-Dichloropropene ND 0.50 0.13 ug/l
108-20-3 Di-Isopropyl Ether ND 0.50 0.13 ug/l
100-41-4 Ethylbenzene ND 0.50 0.13 ug/l
87-68-3 Hexachlorobutadiene ND 0.50 0.13 ug/l
98-82-8 Isopropylbenzene ND 0.50 0.13 ug/l
23 of 34
FA7687555.1.1
Method Blank Summary Page 2 of 2
Job Number:FA76875
Account:GRINCC GRI (Geological Resources Inc.)
Project:Noah Roberson Store; 8941 NC Hwy 171, Williamston, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
VE2334-MB E103894.D 1 07/17/20 AB n/a n/a VE2334
The QC reported here applies to the following samples:Method: SM 6200B
FA76875-2, FA76875-4, FA76875-5
CAS No.Compound Result RL MDL Units Q
99-87-6 p-Isopropyltoluene ND 0.50 0.13 ug/l
74-83-9 Methyl Bromide ND 0.50 0.20 ug/l
74-87-3 Methyl Chloride ND 0.50 0.20 ug/l
74-95-3 Methylene Bromide ND 0.50 0.13 ug/l
75-09-2 Methylene Chloride ND 2.0 1.0 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 0.50 0.13 ug/l
91-20-3 Naphthalene ND 0.50 0.13 ug/l
103-65-1 n-Propylbenzene ND 0.50 0.13 ug/l
100-42-5 Styrene ND 0.50 0.13 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.13 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.50 0.13 ug/l
127-18-4 Tetrachloroethylene ND 0.50 0.13 ug/l
108-88-3 Toluene ND 0.50 0.13 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.13 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.13 ug/l
71-55-6 1,1,1-Trichloroethane ND 0.50 0.13 ug/l
79-00-5 1,1,2-Trichloroethane ND 0.50 0.13 ug/l
79-01-6 Trichloroethylene ND 0.50 0.13 ug/l
75-69-4 Trichlorofluoromethane ND 0.50 0.20 ug/l
96-18-4 1,2,3-Trichloropropane ND 0.50 0.13 ug/l
95-63-6 1,2,4-Trimethylbenzene ND 0.50 0.13 ug/l
108-67-8 1,3,5-Trimethylbenzene ND 0.50 0.13 ug/l
75-01-4 Vinyl Chloride ND 0.50 0.13 ug/l
m,p-Xylene ND 1.0 0.13 ug/l
95-47-6 o-Xylene ND 0.50 0.13 ug/l
1330-20-7 Xylene (total)ND 1.5 0.25 ug/l
CAS No.Surrogate Recoveries Limits
1868-53-7 Dibromofluoromethane 102%70-130%
17060-07-0 1,2-Dichloroethane-D4 110%70-130%
2037-26-5 Toluene-D8 101%70-130%
460-00-4 4-Bromofluorobenzene 105%70-130%
24 of 34
FA7687555.1.1
Method Blank Summary Page 1 of 2
Job Number:FA76875
Account:GRINCC GRI (Geological Resources Inc.)
Project:Noah Roberson Store; 8941 NC Hwy 171, Williamston, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
VA2751-MB A0222710.D 1 07/20/20 AB n/a n/a VA2751
The QC reported here applies to the following samples:Method: SM 6200B
FA76875-1, FA76875-2, FA76875-3, FA76875-4, FA76875-6
CAS No.Compound Result RL MDL Units Q
71-43-2 Benzene ND 0.50 0.13 ug/l
108-86-1 Bromobenzene ND 0.50 0.13 ug/l
74-97-5 Bromochloromethane ND 0.50 0.13 ug/l
75-27-4 Bromodichloromethane ND 0.50 0.13 ug/l
75-25-2 Bromoform ND 0.50 0.13 ug/l
104-51-8 n-Butylbenzene ND 0.50 0.13 ug/l
135-98-8 sec-Butylbenzene ND 0.50 0.13 ug/l
98-06-6 tert-Butylbenzene ND 0.50 0.13 ug/l
56-23-5 Carbon Tetrachloride ND 0.50 0.13 ug/l
108-90-7 Chlorobenzene ND 0.50 0.13 ug/l
75-00-3 Chloroethane ND 0.50 0.20 ug/l
67-66-3 Chloroform ND 0.50 0.13 ug/l
95-49-8 o-Chlorotoluene ND 0.50 0.13 ug/l
106-43-4 p-Chlorotoluene ND 0.50 0.13 ug/l
124-48-1 Dibromochloromethane ND 0.50 0.13 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 0.50 0.25 ug/l
106-93-4 1,2-Dibromoethane ND 0.50 0.13 ug/l
75-71-8 Dichlorodifluoromethane ND 0.50 0.20 ug/l
95-50-1 1,2-Dichlorobenzene ND 0.50 0.13 ug/l
541-73-1 1,3-Dichlorobenzene ND 0.50 0.13 ug/l
106-46-7 1,4-Dichlorobenzene ND 0.50 0.13 ug/l
75-34-3 1,1-Dichloroethane ND 0.50 0.13 ug/l
107-06-2 1,2-Dichloroethane ND 0.50 0.13 ug/l
75-35-4 1,1-Dichloroethylene ND 0.50 0.13 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 0.50 0.13 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 0.50 0.13 ug/l
78-87-5 1,2-Dichloropropane ND 0.50 0.13 ug/l
142-28-9 1,3-Dichloropropane ND 0.50 0.13 ug/l
594-20-7 2,2-Dichloropropane ND 0.50 0.13 ug/l
563-58-6 1,1-Dichloropropene ND 0.50 0.13 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 0.50 0.13 ug/l
10061-02-6 trans-1,3-Dichloropropene ND 0.50 0.13 ug/l
108-20-3 Di-Isopropyl Ether ND 0.50 0.13 ug/l
100-41-4 Ethylbenzene ND 0.50 0.13 ug/l
87-68-3 Hexachlorobutadiene ND 0.50 0.13 ug/l
98-82-8 Isopropylbenzene ND 0.50 0.13 ug/l
25 of 34
FA7687555.1.2
Method Blank Summary Page 2 of 2
Job Number:FA76875
Account:GRINCC GRI (Geological Resources Inc.)
Project:Noah Roberson Store; 8941 NC Hwy 171, Williamston, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
VA2751-MB A0222710.D 1 07/20/20 AB n/a n/a VA2751
The QC reported here applies to the following samples:Method: SM 6200B
FA76875-1, FA76875-2, FA76875-3, FA76875-4, FA76875-6
CAS No.Compound Result RL MDL Units Q
99-87-6 p-Isopropyltoluene ND 0.50 0.13 ug/l
74-83-9 Methyl Bromide ND 0.50 0.20 ug/l
74-87-3 Methyl Chloride ND 0.50 0.20 ug/l
74-95-3 Methylene Bromide ND 0.50 0.13 ug/l
75-09-2 Methylene Chloride ND 2.0 1.0 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 0.50 0.13 ug/l
91-20-3 Naphthalene ND 0.50 0.13 ug/l
103-65-1 n-Propylbenzene ND 0.50 0.13 ug/l
100-42-5 Styrene ND 0.50 0.13 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.13 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.50 0.13 ug/l
127-18-4 Tetrachloroethylene ND 0.50 0.13 ug/l
108-88-3 Toluene ND 0.50 0.13 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.13 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.13 ug/l
71-55-6 1,1,1-Trichloroethane ND 0.50 0.13 ug/l
79-00-5 1,1,2-Trichloroethane ND 0.50 0.13 ug/l
79-01-6 Trichloroethylene ND 0.50 0.13 ug/l
75-69-4 Trichlorofluoromethane ND 0.50 0.20 ug/l
96-18-4 1,2,3-Trichloropropane ND 0.50 0.13 ug/l
95-63-6 1,2,4-Trimethylbenzene ND 0.50 0.13 ug/l
108-67-8 1,3,5-Trimethylbenzene ND 0.50 0.13 ug/l
75-01-4 Vinyl Chloride ND 0.50 0.13 ug/l
m,p-Xylene ND 1.0 0.13 ug/l
95-47-6 o-Xylene ND 0.50 0.13 ug/l
1330-20-7 Xylene (total)ND 1.5 0.25 ug/l
CAS No.Surrogate Recoveries Limits
1868-53-7 Dibromofluoromethane 100%70-130%
17060-07-0 1,2-Dichloroethane-D4 103%70-130%
2037-26-5 Toluene-D8 107%70-130%
460-00-4 4-Bromofluorobenzene 106%70-130%
26 of 34
FA7687555.1.2
Blank Spike Summary Page 1 of 2
Job Number:FA76875
Account:GRINCC GRI (Geological Resources Inc.)
Project:Noah Roberson Store; 8941 NC Hwy 171, Williamston, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
VE2334-BS a E103892.D 1 07/17/20 AB n/a n/a VE2334
The QC reported here applies to the following samples:Method: SM 6200B
FA76875-2, FA76875-4, FA76875-5
Spike BSP BSP
CAS No.Compound ug/l ug/l %Limits
71-43-2 Benzene 10 9.6 96 70-130
108-86-1 Bromobenzene 10 8.6 86 70-130
74-97-5 Bromochloromethane 10 8.8 88 70-130
75-27-4 Bromodichloromethane 10 9.5 95 70-130
75-25-2 Bromoform 10 8.3 83 70-130
104-51-8 n-Butylbenzene 10 9.0 90 70-130
135-98-8 sec-Butylbenzene 10 9.2 92 70-130
98-06-6 tert-Butylbenzene 10 8.9 89 70-130
56-23-5 Carbon Tetrachloride 10 10.2 102 70-130
108-90-7 Chlorobenzene 10 8.7 87 70-130
75-00-3 Chloroethane 10 11.2 112 60-140
67-66-3 Chloroform 10 9.5 95 70-130
95-49-8 o-Chlorotoluene 10 9.4 94 70-130
106-43-4 p-Chlorotoluene 10 8.7 87 70-130
124-48-1 Dibromochloromethane 10 8.6 86 70-130
96-12-8 1,2-Dibromo-3-chloropropane 10 8.3 83 70-130
106-93-4 1,2-Dibromoethane 10 8.6 86 70-130
75-71-8 Dichlorodifluoromethane 10 9.6 96 60-140
95-50-1 1,2-Dichlorobenzene 10 8.4 84 70-130
541-73-1 1,3-Dichlorobenzene 10 8.9 89 70-130
106-46-7 1,4-Dichlorobenzene 10 8.5 85 70-130
75-34-3 1,1-Dichloroethane 10 10.0 100 70-130
107-06-2 1,2-Dichloroethane 10 10.1 101 70-130
75-35-4 1,1-Dichloroethylene 10 10.9 109 70-130
156-59-2 cis-1,2-Dichloroethylene 10 9.2 92 70-130
156-60-5 trans-1,2-Dichloroethylene 10 10.1 101 70-130
78-87-5 1,2-Dichloropropane 10 9.7 97 70-130
142-28-9 1,3-Dichloropropane 10 8.6 86 70-130
594-20-7 2,2-Dichloropropane 10 9.9 99 70-130
563-58-6 1,1-Dichloropropene 10 10.5 105 70-130
10061-01-5 cis-1,3-Dichloropropene 10 9.2 92 70-130
10061-02-6 trans-1,3-Dichloropropene 10 9.0 90 70-130
108-20-3 Di-Isopropyl Ether 10 10.6 106 70-130
100-41-4 Ethylbenzene 10 9.3 93 70-130
87-68-3 Hexachlorobutadiene 10 9.3 93 70-130
98-82-8 Isopropylbenzene 10 8.6 86 70-130
* = Outside of Control Limits.
27 of 34
FA7687555.2.1
Blank Spike Summary Page 2 of 2
Job Number:FA76875
Account:GRINCC GRI (Geological Resources Inc.)
Project:Noah Roberson Store; 8941 NC Hwy 171, Williamston, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
VE2334-BS a E103892.D 1 07/17/20 AB n/a n/a VE2334
The QC reported here applies to the following samples:Method: SM 6200B
FA76875-2, FA76875-4, FA76875-5
Spike BSP BSP
CAS No.Compound ug/l ug/l %Limits
99-87-6 p-Isopropyltoluene 10 8.8 88 70-130
74-83-9 Methyl Bromide 10 10.4 104 60-140
74-87-3 Methyl Chloride 10 11.3 113 60-140
74-95-3 Methylene Bromide 10 8.8 88 70-130
75-09-2 Methylene Chloride 10 10.0 100 70-130
1634-04-4 Methyl Tert Butyl Ether 10 9.8 98 70-130
91-20-3 Naphthalene 10 7.8 78 70-130
103-65-1 n-Propylbenzene 10 9.5 95 70-130
100-42-5 Styrene 10 8.1 81 70-130
630-20-6 1,1,1,2-Tetrachloroethane 10 9.0 90 70-130
79-34-5 1,1,2,2-Tetrachloroethane 10 8.8 88 70-130
127-18-4 Tetrachloroethylene 10 9.1 91 70-130
108-88-3 Toluene 10 9.1 91 70-130
87-61-6 1,2,3-Trichlorobenzene 10 8.6 86 70-130
120-82-1 1,2,4-Trichlorobenzene 10 8.5 85 70-130
71-55-6 1,1,1-Trichloroethane 10 9.9 99 70-130
79-00-5 1,1,2-Trichloroethane 10 9.0 90 70-130
79-01-6 Trichloroethylene 10 9.4 94 70-130
75-69-4 Trichlorofluoromethane 10 11.5 115 60-140
96-18-4 1,2,3-Trichloropropane 10 8.3 83 70-130
95-63-6 1,2,4-Trimethylbenzene 10 8.5 85 70-130
108-67-8 1,3,5-Trimethylbenzene 10 9.0 90 70-130
75-01-4 Vinyl Chloride 10 10.7 107 60-140
m,p-Xylene 20 17.8 89 70-130
95-47-6 o-Xylene 10 8.3 83 70-130
1330-20-7 Xylene (total)30 26.1 87 70-130
CAS No.Surrogate Recoveries BSP Limits
1868-53-7 Dibromofluoromethane 103%70-130%
17060-07-0 1,2-Dichloroethane-D4 114%70-130%
2037-26-5 Toluene-D8 99%70-130%
460-00-4 4-Bromofluorobenzene 101%70-130%
(a) No MSD available for this run.
* = Outside of Control Limits.
28 of 34
FA7687555.2.1
Blank Spike Summary Page 1 of 2
Job Number:FA76875
Account:GRINCC GRI (Geological Resources Inc.)
Project:Noah Roberson Store; 8941 NC Hwy 171, Williamston, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
VA2751-BS A0222708.D 1 07/20/20 AB n/a n/a VA2751
The QC reported here applies to the following samples:Method: SM 6200B
FA76875-1, FA76875-2, FA76875-3, FA76875-4, FA76875-6
Spike BSP BSP
CAS No.Compound ug/l ug/l %Limits
71-43-2 Benzene 10 8.8 88 70-130
108-86-1 Bromobenzene 10 9.7 97 70-130
74-97-5 Bromochloromethane 10 8.8 88 70-130
75-27-4 Bromodichloromethane 10 9.0 90 70-130
75-25-2 Bromoform 10 8.9 89 70-130
104-51-8 n-Butylbenzene 10 9.1 91 70-130
135-98-8 sec-Butylbenzene 10 9.6 96 70-130
98-06-6 tert-Butylbenzene 10 9.1 91 70-130
56-23-5 Carbon Tetrachloride 10 9.7 97 70-130
108-90-7 Chlorobenzene 10 9.5 95 70-130
75-00-3 Chloroethane 10 10.3 103 60-140
67-66-3 Chloroform 10 8.9 89 70-130
95-49-8 o-Chlorotoluene 10 9.1 91 70-130
106-43-4 p-Chlorotoluene 10 9.0 90 70-130
124-48-1 Dibromochloromethane 10 9.3 93 70-130
96-12-8 1,2-Dibromo-3-chloropropane 10 9.1 91 70-130
106-93-4 1,2-Dibromoethane 10 9.6 96 70-130
75-71-8 Dichlorodifluoromethane 10 9.7 97 60-140
95-50-1 1,2-Dichlorobenzene 10 9.5 95 70-130
541-73-1 1,3-Dichlorobenzene 10 10 100 70-130
106-46-7 1,4-Dichlorobenzene 10 9.4 94 70-130
75-34-3 1,1-Dichloroethane 10 9.0 90 70-130
107-06-2 1,2-Dichloroethane 10 8.9 89 70-130
75-35-4 1,1-Dichloroethylene 10 9.5 95 70-130
156-59-2 cis-1,2-Dichloroethylene 10 8.4 84 70-130
156-60-5 trans-1,2-Dichloroethylene 10 9.4 94 70-130
78-87-5 1,2-Dichloropropane 10 8.4 84 70-130
142-28-9 1,3-Dichloropropane 10 9.2 92 70-130
594-20-7 2,2-Dichloropropane 10 9.9 99 70-130
563-58-6 1,1-Dichloropropene 10 9.2 92 70-130
10061-01-5 cis-1,3-Dichloropropene 10 8.4 84 70-130
10061-02-6 trans-1,3-Dichloropropene 10 8.9 89 70-130
108-20-3 Di-Isopropyl Ether 10 8.5 85 70-130
100-41-4 Ethylbenzene 10 9.3 93 70-130
87-68-3 Hexachlorobutadiene 10 10.4 104 70-130
98-82-8 Isopropylbenzene 10 9.1 91 70-130
* = Outside of Control Limits.
29 of 34
FA7687555.2.2
Blank Spike Summary Page 2 of 2
Job Number:FA76875
Account:GRINCC GRI (Geological Resources Inc.)
Project:Noah Roberson Store; 8941 NC Hwy 171, Williamston, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
VA2751-BS A0222708.D 1 07/20/20 AB n/a n/a VA2751
The QC reported here applies to the following samples:Method: SM 6200B
FA76875-1, FA76875-2, FA76875-3, FA76875-4, FA76875-6
Spike BSP BSP
CAS No.Compound ug/l ug/l %Limits
99-87-6 p-Isopropyltoluene 10 9.2 92 70-130
74-83-9 Methyl Bromide 10 10.0 100 60-140
74-87-3 Methyl Chloride 10 10.5 105 60-140
74-95-3 Methylene Bromide 10 8.7 87 70-130
75-09-2 Methylene Chloride 10 8.1 81 70-130
1634-04-4 Methyl Tert Butyl Ether 10 9.1 91 70-130
91-20-3 Naphthalene 10 8.1 81 70-130
103-65-1 n-Propylbenzene 10 9.3 93 70-130
100-42-5 Styrene 10 8.6 86 70-130
630-20-6 1,1,1,2-Tetrachloroethane 10 9.6 96 70-130
79-34-5 1,1,2,2-Tetrachloroethane 10 9.3 93 70-130
127-18-4 Tetrachloroethylene 10 10.1 101 70-130
108-88-3 Toluene 10 9.6 96 70-130
87-61-6 1,2,3-Trichlorobenzene 10 8.9 89 70-130
120-82-1 1,2,4-Trichlorobenzene 10 8.7 87 70-130
71-55-6 1,1,1-Trichloroethane 10 9.4 94 70-130
79-00-5 1,1,2-Trichloroethane 10 9.5 95 70-130
79-01-6 Trichloroethylene 10 9.4 94 70-130
75-69-4 Trichlorofluoromethane 10 11.9 119 60-140
96-18-4 1,2,3-Trichloropropane 10 9.0 90 70-130
95-63-6 1,2,4-Trimethylbenzene 10 8.8 88 70-130
108-67-8 1,3,5-Trimethylbenzene 10 9.1 91 70-130
75-01-4 Vinyl Chloride 10 11.0 110 60-140
m,p-Xylene 20 18.1 91 70-130
95-47-6 o-Xylene 10 8.7 87 70-130
1330-20-7 Xylene (total)30 26.8 89 70-130
CAS No.Surrogate Recoveries BSP Limits
1868-53-7 Dibromofluoromethane 96%70-130%
17060-07-0 1,2-Dichloroethane-D4 99%70-130%
2037-26-5 Toluene-D8 103%70-130%
460-00-4 4-Bromofluorobenzene 103%70-130%
* = Outside of Control Limits.
30 of 34
FA7687555.2.2
Matrix Spike Summary Page 1 of 2
Job Number:FA76875
Account:GRINCC GRI (Geological Resources Inc.)
Project:Noah Roberson Store; 8941 NC Hwy 171, Williamston, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
FA76875-2MS E103903.D 5 07/17/20 AB n/a n/a VE2334
FA76875-2 E103897.D 1 07/17/20 AB n/a n/a VE2334
The QC reported here applies to the following samples:Method: SM 6200B
FA76875-2, FA76875-4, FA76875-5
FA76875-2 Spike MS MS
CAS No.Compound ug/l Q ug/l ug/l %Limits
71-43-2 Benzene 1.3 50 50.5 98 70-130
108-86-1 Bromobenzene ND 50 46.5 93 70-130
74-97-5 Bromochloromethane ND 50 45.4 91 70-130
75-27-4 Bromodichloromethane ND 50 43.4 87 70-130
75-25-2 Bromoform ND 50 28.8 58*70-130
104-51-8 n-Butylbenzene 5.8 50 54.4 97 70-130
135-98-8 sec-Butylbenzene 6.2 50 56.5 101 70-130
98-06-6 tert-Butylbenzene ND 50 50.3 101 70-130
56-23-5 Carbon Tetrachloride ND 50 47.5 95 70-130
108-90-7 Chlorobenzene ND 50 45.5 91 70-130
75-00-3 Chloroethane ND 50 52.9 106 60-140
67-66-3 Chloroform ND 50 47.4 95 70-130
95-49-8 o-Chlorotoluene ND 50 51.3 103 70-130
106-43-4 p-Chlorotoluene ND 50 47.4 95 70-130
124-48-1 Dibromochloromethane ND 50 35.9 72 70-130
96-12-8 1,2-Dibromo-3-chloropropane ND 50 44.6 89 70-130
106-93-4 1,2-Dibromoethane ND 50 47.6 95 70-130
75-71-8 Dichlorodifluoromethane ND 50 52.5 105 60-140
95-50-1 1,2-Dichlorobenzene ND 50 46.5 93 70-130
541-73-1 1,3-Dichlorobenzene ND 50 47.3 95 70-130
106-46-7 1,4-Dichlorobenzene ND 50 43.8 88 70-130
75-34-3 1,1-Dichloroethane ND 50 47.5 95 70-130
107-06-2 1,2-Dichloroethane ND 50 49.4 99 70-130
75-35-4 1,1-Dichloroethylene ND 50 49.5 99 70-130
156-59-2 cis-1,2-Dichloroethylene ND 50 47.3 95 70-130
156-60-5 trans-1,2-Dichloroethylene ND 50 48.9 98 70-130
78-87-5 1,2-Dichloropropane ND 50 52.2 104 70-130
142-28-9 1,3-Dichloropropane ND 50 47.8 96 70-130
594-20-7 2,2-Dichloropropane ND 50 45.4 91 70-130
563-58-6 1,1-Dichloropropene ND 50 55.1 110 70-130
10061-01-5 cis-1,3-Dichloropropene ND 50 38.9 78 70-130
10061-02-6 trans-1,3-Dichloropropene ND 50 38.6 77 70-130
108-20-3 Di-Isopropyl Ether ND 50 53.6 107 70-130
100-41-4 Ethylbenzene 51.3 E 50 87.6 73 70-130
87-68-3 Hexachlorobutadiene ND 50 53.5 107 70-130
98-82-8 Isopropylbenzene 14.3 50 61.0 93 70-130
* = Outside of Control Limits.
31 of 34
FA7687555.3.1
Matrix Spike Summary Page 2 of 2
Job Number:FA76875
Account:GRINCC GRI (Geological Resources Inc.)
Project:Noah Roberson Store; 8941 NC Hwy 171, Williamston, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
FA76875-2MS E103903.D 5 07/17/20 AB n/a n/a VE2334
FA76875-2 E103897.D 1 07/17/20 AB n/a n/a VE2334
The QC reported here applies to the following samples:Method: SM 6200B
FA76875-2, FA76875-4, FA76875-5
FA76875-2 Spike MS MS
CAS No.Compound ug/l Q ug/l ug/l %Limits
99-87-6 p-Isopropyltoluene 1.4 50 50.9 99 70-130
74-83-9 Methyl Bromide ND 50 49.8 100 60-140
74-87-3 Methyl Chloride ND 50 58.4 117 60-140
74-95-3 Methylene Bromide ND 50 46.4 93 70-130
75-09-2 Methylene Chloride ND 50 47.1 94 70-130
1634-04-4 Methyl Tert Butyl Ether ND 50 49.6 99 70-130
91-20-3 Naphthalene 23.0 50 73.0 100 70-130
103-65-1 n-Propylbenzene 34.5 50 79.8 91 70-130
100-42-5 Styrene ND 50 45.5 91 70-130
630-20-6 1,1,1,2-Tetrachloroethane ND 50 45.9 92 70-130
79-34-5 1,1,2,2-Tetrachloroethane ND 50 49.1 98 70-130
127-18-4 Tetrachloroethylene ND 50 47.0 94 70-130
108-88-3 Toluene 0.20 J 50 47.1 94 70-130
87-61-6 1,2,3-Trichlorobenzene ND 50 51.6 103 70-130
120-82-1 1,2,4-Trichlorobenzene ND 50 53.6 107 70-130
71-55-6 1,1,1-Trichloroethane ND 50 48.8 98 70-130
79-00-5 1,1,2-Trichloroethane ND 50 49.0 98 70-130
79-01-6 Trichloroethylene ND 50 50.3 101 70-130
75-69-4 Trichlorofluoromethane ND 50 52.6 105 60-140
96-18-4 1,2,3-Trichloropropane ND 50 45.3 91 70-130
95-63-6 1,2,4-Trimethylbenzene 26.8 50 70.5 87 70-130
108-67-8 1,3,5-Trimethylbenzene 8.3 50 56.1 96 70-130
75-01-4 Vinyl Chloride ND 50 55.7 111 60-140
m,p-Xylene 16.3 100 108 92 70-130
95-47-6 o-Xylene 1.4 50 51.0 99 70-130
1330-20-7 Xylene (total)17.8 150 159 94 70-130
CAS No.Surrogate Recoveries MS FA76875-2 Limits
1868-53-7 Dibromofluoromethane 97%101%70-130%
17060-07-0 1,2-Dichloroethane-D4 106%110%70-130%
2037-26-5 Toluene-D8 99%90%70-130%
460-00-4 4-Bromofluorobenzene 111%103%70-130%
* = Outside of Control Limits.
32 of 34
FA7687555.3.1
Matrix Spike/Matrix Spike Duplicate Summary Page 1 of 2
Job Number:FA76875
Account:GRINCC GRI (Geological Resources Inc.)
Project:Noah Roberson Store; 8941 NC Hwy 171, Williamston, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
FA76875-6MS A0222720.D 5 07/20/20 AB n/a n/a VA2751
FA76875-6MSD A0222721.D 5 07/20/20 AB n/a n/a VA2751
FA76875-6 A0222711.D 1 07/20/20 AB n/a n/a VA2751
The QC reported here applies to the following samples:Method: SM 6200B
FA76875-1, FA76875-2, FA76875-3, FA76875-4, FA76875-6
FA76875-6 Spike MS MS Spike MSD MSD Limits
CAS No.Compound ug/l Q ug/l ug/l %ug/l ug/l %RPD Rec/RPD
71-43-2 Benzene ND 50 42.3 85 50 42.5 85 0 70-130/20
108-86-1 Bromobenzene ND 50 46.4 93 50 46.7 93 1 70-130/20
74-97-5 Bromochloromethane ND 50 42.4 85 50 43.0 86 1 70-130/20
75-27-4 Bromodichloromethane ND 50 40.6 81 50 39.7 79 2 70-130/20
75-25-2 Bromoform ND 50 31.0 62*50 29.7 59*4 70-130/20
104-51-8 n-Butylbenzene ND 50 43.9 88 50 44.3 89 1 70-130/20
135-98-8 sec-Butylbenzene ND 50 46.8 94 50 47.0 94 0 70-130/20
98-06-6 tert-Butylbenzene ND 50 46.5 93 50 47.0 94 1 70-130/20
56-23-5 Carbon Tetrachloride ND 50 46.0 92 50 45.8 92 0 70-130/20
108-90-7 Chlorobenzene ND 50 45.7 91 50 45.7 91 0 70-130/20
75-00-3 Chloroethane ND 50 45.9 92 50 44.1 88 4 60-140/20
67-66-3 Chloroform ND 50 44.1 88 50 43.6 87 1 70-130/20
95-49-8 o-Chlorotoluene ND 50 44.8 90 50 45.4 91 1 70-130/20
106-43-4 p-Chlorotoluene ND 50 44.2 88 50 44.8 90 1 70-130/20
124-48-1 Dibromochloromethane ND 50 37.0 74 50 35.9 72 3 70-130/20
96-12-8 1,2-Dibromo-3-chloropropane ND 50 44.3 89 50 43.8 88 1 70-130/20
106-93-4 1,2-Dibromoethane ND 50 46.9 94 50 46.8 94 0 70-130/20
75-71-8 Dichlorodifluoromethane ND 50 39.0 78 50 39.7 79 2 60-140/20
95-50-1 1,2-Dichlorobenzene ND 50 46.6 93 50 46.5 93 0 70-130/20
541-73-1 1,3-Dichlorobenzene ND 50 48.5 97 50 48.6 97 0 70-130/20
106-46-7 1,4-Dichlorobenzene ND 50 44.9 90 50 44.7 89 0 70-130/20
75-34-3 1,1-Dichloroethane ND 50 44.2 88 50 43.9 88 1 70-130/20
107-06-2 1,2-Dichloroethane ND 50 44.3 89 50 44.6 89 1 70-130/20
75-35-4 1,1-Dichloroethylene ND 50 47.2 94 50 47.5 95 1 70-130/20
156-59-2 cis-1,2-Dichloroethylene ND 50 42.3 85 50 42.2 84 0 70-130/20
156-60-5 trans-1,2-Dichloroethylene ND 50 47.0 94 50 46.7 93 1 70-130/20
78-87-5 1,2-Dichloropropane ND 50 40.5 81 50 41.0 82 1 70-130/20
142-28-9 1,3-Dichloropropane ND 50 45.2 90 50 44.5 89 2 70-130/20
594-20-7 2,2-Dichloropropane ND 50 48.9 98 50 47.8 96 2 70-130/20
563-58-6 1,1-Dichloropropene ND 50 45.6 91 50 46.1 92 1 70-130/20
10061-01-5 cis-1,3-Dichloropropene ND 50 34.0 68*50 33.2 66*2 70-130/20
10061-02-6 trans-1,3-Dichloropropene ND 50 39.6 79 50 38.8 78 2 70-130/20
108-20-3 Di-Isopropyl Ether ND 50 42.3 85 50 42.8 86 1 70-130/20
100-41-4 Ethylbenzene ND 50 45.7 91 50 45.5 91 0 70-130/20
87-68-3 Hexachlorobutadiene ND 50 49.6 99 50 49.8 100 0 70-130/20
98-82-8 Isopropylbenzene ND 50 45.9 92 50 45.7 91 0 70-130/20
* = Outside of Control Limits.
33 of 34
FA7687555.4.1
Matrix Spike/Matrix Spike Duplicate Summary Page 2 of 2
Job Number:FA76875
Account:GRINCC GRI (Geological Resources Inc.)
Project:Noah Roberson Store; 8941 NC Hwy 171, Williamston, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
FA76875-6MS A0222720.D 5 07/20/20 AB n/a n/a VA2751
FA76875-6MSD A0222721.D 5 07/20/20 AB n/a n/a VA2751
FA76875-6 A0222711.D 1 07/20/20 AB n/a n/a VA2751
The QC reported here applies to the following samples:Method: SM 6200B
FA76875-1, FA76875-2, FA76875-3, FA76875-4, FA76875-6
FA76875-6 Spike MS MS Spike MSD MSD Limits
CAS No.Compound ug/l Q ug/l ug/l %ug/l ug/l %RPD Rec/RPD
99-87-6 p-Isopropyltoluene ND 50 45.5 91 50 46.1 92 1 70-130/20
74-83-9 Methyl Bromide ND 50 44.6 89 50 43.9 88 2 60-140/20
74-87-3 Methyl Chloride 0.21 J 50 42.4 84 50 41.5 83 2 60-140/20
74-95-3 Methylene Bromide ND 50 42.6 85 50 42.9 86 1 70-130/20
75-09-2 Methylene Chloride ND 50 39.2 78 50 39.2 78 0 70-130/20
1634-04-4 Methyl Tert Butyl Ether ND 50 45.9 92 50 45.2 90 2 70-130/20
91-20-3 Naphthalene ND 50 41.1 82 50 40.4 81 2 70-130/20
103-65-1 n-Propylbenzene ND 50 45.4 91 50 45.8 92 1 70-130/20
100-42-5 Styrene ND 50 41.9 84 50 41.7 83 0 70-130/20
630-20-6 1,1,1,2-Tetrachloroethane ND 50 46.8 94 50 46.7 93 0 70-130/20
79-34-5 1,1,2,2-Tetrachloroethane ND 50 44.3 89 50 43.4 87 2 70-130/20
127-18-4 Tetrachloroethylene ND 50 50.1 100 50 49.5 99 1 70-130/20
108-88-3 Toluene ND 50 46.6 93 50 46.5 93 0 70-130/20
87-61-6 1,2,3-Trichlorobenzene ND 50 42.7 85 50 43.2 86 1 70-130/20
120-82-1 1,2,4-Trichlorobenzene ND 50 42.9 86 50 42.7 85 0 70-130/20
71-55-6 1,1,1-Trichloroethane ND 50 48.0 96 50 47.1 94 2 70-130/20
79-00-5 1,1,2-Trichloroethane ND 50 45.8 92 50 44.8 90 2 70-130/20
79-01-6 Trichloroethylene ND 50 45.8 92 50 45.6 91 0 70-130/20
75-69-4 Trichlorofluoromethane ND 50 47.8 96 50 49.4 99 3 60-140/20
96-18-4 1,2,3-Trichloropropane ND 50 43.8 88 50 43.9 88 0 70-130/20
95-63-6 1,2,4-Trimethylbenzene ND 50 43.4 87 50 43.5 87 0 70-130/20
108-67-8 1,3,5-Trimethylbenzene ND 50 45.4 91 50 45.4 91 0 70-130/20
75-01-4 Vinyl Chloride ND 50 45.0 90 50 46.5 93 3 60-140/20
m,p-Xylene ND 100 90.2 90 100 89.9 90 0 70-130/20
95-47-6 o-Xylene ND 50 44.5 89 50 44.0 88 1 70-130/20
1330-20-7 Xylene (total)ND 150 135 90 150 134 89 1 70-130/20
CAS No.Surrogate Recoveries MS MSD FA76875-6 Limits
1868-53-7 Dibromofluoromethane 96%96%101%70-130%
17060-07-0 1,2-Dichloroethane-D4 97%97%103%70-130%
2037-26-5 Toluene-D8 103%103%107%70-130%
460-00-4 4-Bromofluorobenzene 105%106%108%70-130%
* = Outside of Control Limits.
34 of 34
FA7687555.4.1
APPENDIX C
Contaminant Mass Calculations
Area ID Well IDs Area (ft²)Water Column
Height (ft)Volume (ft³)Volume (L)Effective
Porosity
Effective
Volume (L)
MW-1
MW-3
MW-5
MW-6
MW-12
MW-13
Area Date Well Benzene Toluene Ethylbenzene Xylenes MTBE Naphthalene Total DTW Total Average Mass (g)Percent Red.To Date Red.
MW-1 120.00 7.40 166.00 187.60 0.00 53.50 534.50 1.80
MW-3 14.00 2.00 333.00 156.10 0.00 74.80 579.90 1.30
MW-5 97.30 13.30 703.00 2227.00 0.00 319.00 3359.60 1.65
MW-6 2.70 0.00 24.70 11.50 0.00 46.30 85.20 3.35
MW-12 10.40 0.25 307.00 17.40 0.00 286.00 620.80 1.67
MW-13 38.50 8.90 671.00 1574.00 0.00 272.00 2564.40 2.17
Avg.47.15 7.90 367.45 695.60 0.00 175.27 1290.73 1.99
MW-1 129.00 4.70 133.00 89.40 0.00 34.20 390.30 1.67
MW-3 15.80 1.90 386.00 220.00 0.00 129.00 752.70 1.40
MW-5 186.00 10.30 258.00 879.00 0.00 179.00 1512.30 1.72
MW-6 8.40 0.00 78.00 47.90 0.00 100.00 234.30 2.86
MW-12 17.7 0.00 432.00 0.00 0.00 416.00 848.00 2.41
MW-13 64.80 5.90 565.00 1077.00 0.00 328.00 2040.70 2.43
Avg.80.80 5.70 308.67 462.66 0.00 197.70 963.05 2.08
MW-1 22.90 10.60 191.00 319.00 0.00 96.30 639.80 1.05
MW-3 4.10 0.16 31.20 2.05 0.00 2.80 40.31 1.13
MW-5 25.60 3.30 66.80 732.00 0.00 186.00 1013.70 1.91
MW-6 3.10 0.17 48.50 37.80 0.00 75.40 164.80 3.84
MW-12 5.70 0.21 202.00 6.00 0.00 274.00 487.70 2.22
MW-13 5.90 1.90 248.00 547.00 0.00 152.00 954.80 2.52
Avg.11.22 3.99 131.25 273.98 0.00 131.08 550.19 2.11
MW-1 49.40 13.80 326.00 598.00 0.00 104.00 1091.20 1.72
MW-3 12.80 0.79 222.00 90.40 0.00 71.80 397.79 1.43
MW-5 22.50 4.80 355.00 952.00 0.00 217.00 1551.30 1.86
MW-6 2.20 0.19 42.80 43.30 0.00 84.30 172.60 3.79
MW-12 5.70 0.00 178.00 6.7 0.00 238.00 421.70 2.48
MW-13 20.50 4.60 564.00 1440.00 0.00 271.00 2300.10 2.40
Avg.18.85 6.00 281.30 624.74 0.00 164.35 989.12 2.28
MW-1 121.00 12.50 273.00 440.00 0.00 105.00 951.50 1.30
MW-3 2.90 0.19 43.70 10.20 0.00 12.90 69.70 0.98
MW-5 31.80 6.20 431.00 888.00 0.00 281.00 1638.00 1.40
MW-6 2.90 3.70 59.30 90.10 0.00 104.00 260.00 3.16
MW-12 5.70 0.00 178.00 6.70 0.00 238.00 428.40 ---
MW-13 25.10 7.40 649.00 1470.00 0.00 258.00 2409.50 2.57
Avg.31.57 5.96 272.33 484.17 0.00 166.48 959.52 1.88
APPENDIX C
PERCENTAGE REDUCTIONS
NOAH ROBERSON STORE (INCIDENT NO. 11759)
1 8,673.5 13.35 115,791 3,278,826 0.23 754,130
---
01/21/13 726.26 25.4%25.4%
Area 1 414.91 42.9%
07/22/14 723.60 3.0%
03/27/12 973.38 ---
57.4%
01/23/14 745.92 -79.8%23.4%
07/17/13
25.7%
Area ID Well IDs Area (ft²)Water Column
Height (ft)Volume (ft³)Volume (L)Effective
Porosity
Effective
Volume (L)
MW-1
MW-3
MW-5
MW-6
MW-12
MW-13
Area Date Well Benzene Toluene Ethylbenzene Xylenes MTBE Naphthalene Total DTW Total Average Mass (g)Percent Red.To Date Red.
APPENDIX C
PERCENTAGE REDUCTIONS
NOAH ROBERSON STORE (INCIDENT NO. 11759)
1 8,673.5 13.35 115,791 3,278,826 0.23 754,130
MW-1 35.30 18.80 278.00 597.00 0.00 82.50 1011.60 1.16
MW-3 2.70 0.00 19.20 2.79 0.00 3.70 28.39 0.93
MW-5 38.70 9.80 650.00 1540.00 0.00 325.00 2563.50 1.15
MW-6 1.70 0.00 43.10 19.90 0.00 69.90 134.60 2.83
MW-12 5.70 0.00 178.00 6.70 0.00 238.00 428.40 ---
MW-13 18.10 5.30 570.00 1230.00 0.00 249.00 2072.40 2.18
Avg.17.03 5.65 289.72 566.07 0.00 161.35 1039.82 1.65
MW-1 132 12.9 404 901 0.00 177 1626.90 1.81
MW-3 1.30 0.28 20.40 2.30 0.00 6.10 30.38 1.54
MW-5 21 4 426 516 0 298 1265.20 1.53
MW-6 3 0 55 13 0 95.3 166.94 2.91
MW-12 6 0 178 7 0 238 428.40 ---
MW-13 13 3 982 2,290 0 583 3871.30 2.39
Avg.29.47 3.37 344.25 621.53 0.00 232.90 1231.52 2.04
MW-1 25.20 15.00 335.00 1000.00 0.00 143.00 1518.20 2.42
MW-3 0.13 0.00 3.30 0.26 0.00 0.75 4.44 2.63
MW-5 18.20 3.10 319.00 370.00 0.00 277.00 987.30 1.81
MW-6 2.80 0.00 22.00 15.30 0.00 77.10 117.20 3.62
MW-12 5.70 0.00 178.00 6.70 0.00 238.00 428.40 ---
MW-13 10.70 3.20 438.00 1370.00 0.00 309.00 2130.90 3.44
Avg.10.46 3.55 215.88 460.38 0.00 174.14 864.41 2.78
MW-1 123.00 6.80 322.00 608.00 0.00 134.00 1193.80 2.04
MW-3 1.80 0.34 43.00 4.50 0.00 20.30 69.94 2.02
MW-5 20.20 4.10 443.00 590.00 0.00 340.00 1397.30 1.78
MW-6 2.00 0.00 31.10 4.70 0.00 80.10 117.90 3.48
MW-12 5.70 0.00 178.00 6.70 0.00 238.00 428.40 ---
MW-13 10.80 3.70 426.00 858.00 0.00 261.00 1559.50 3.05
Avg.27.25 2.49 240.52 345.32 0.00 178.90 794.47 2.47
MW-1 37.50 2.20 63.70 103.00 0.00 44.10 250.50 1.92
MW-3 1.80 0.34 43.00 4.50 0.00 20.30 69.94 ---
MW-5 4.1 0 53 1 0.00 96.7 154.33 1.60
MW-6 2 0 31.1 5 0.00 80.1 117.90 ---
MW-12 34.5 0.95 173 421 0.00 270 899.45 2.40
MW-13 33.8 1.5 410 182 0.00 262 889.30 2.39
Avg.18.95 0.83 128.90 119.36 0.00 128.87 396.90 2.08
Area 1
Cotd.
01/12/16 928.73 -18.4%
07/03/17
04/21/15 784.16 -8.4%19.4%
4.6%
10/05/16 651.87 29.8%33.0%
38.4%
01/08/19 299.32 50.0%69.2%
599.14 8.1%
Area ID Well IDs Area (ft²)Water Column
Height (ft)Volume (ft³)Volume (L)Effective
Porosity
Effective
Volume (L)
MW-1
MW-3
MW-5
MW-6
MW-12
MW-13
Area Date Well Benzene Toluene Ethylbenzene Xylenes MTBE Naphthalene Total DTW Total Average Mass (g)Percent Red.To Date Red.
APPENDIX C
PERCENTAGE REDUCTIONS
NOAH ROBERSON STORE (INCIDENT NO. 11759)
1 8,673.5 13.35 115,791 3,278,826 0.23 754,130
MW-1 50 6 223 376 0 73.5 728.70 3.90
MW-3 2 0 43 5 0 20.3 69.94 ---
MW-5 18 0 377 460 0 264 1119.20 3.04
MW-6 2.00 0.00 31.10 4.70 0.00 80.10 117.90 ---
MW-12 4.80 0.98 95.20 2.40 0.00 362.00 465.38 4.68
MW-13 33 0 380 479 0 331 1222.50 5.64
Avg.18.23 1.24 191.55 221.10 0.00 188.48 620.60 4.32
MW-1 52 7 168 353 3 74.1 655.90 2.27
MW-3 1.3 0.2 34.6 17.8 0.13 23 77.03 1.87
MW-5 15 6 404 655 6.3 299 1385.80 2.27
MW-6 2.00 0.00 31.10 4.70 0.00 80.10 117.90 ---
MW-12 4.30 1.30 119 2.50 1.30 395 523.40 3.29
MW-13 21.5 3.1 494 775 3 300 1296.70 3.59
Avg.16.02 2.90 208.45 301.33 2.22 174.24 676.12 2.66
Date
03/27/12
01/21/13
07/17/13
01/23/14
07/22/14
04/21/15
01/12/16
10/05/16
07/03/17
01/08/19
10/03/19
07/15/20
To Date:48%
Notes:
• FP: Free Product
• Baseline contaminant mass was calculated using the maximum water column observed as well as the maximum historical dissolved phase contaminant concentrations.
• Contaminant mass cannot be calculated in wells containing FP; therefore, the total contaminant mass is based on the known concentrations in the area for each sampling event.
• Contaminant mass values in yellow indicate a sampling event where the well wasn't sampled. The last known values are used for calculations.
Area 1
Cotd.
51.9%
Total Contaminant Mass (g)Percent Reduction Compared
to Previous Event Percent Reduction To Date
10/03/19 468.02 16.9%
07/15/20 509.88 116.9%
973.38 ------
726.26 25.4%25%
414.91 42.9%57%
745.92 -79.8%23%
5%
651.87 29.8%33%
723.60 3.0%26%
784.16 -8.4%19%
47.6%
509.88 -8.9%48%
468.02 -56.4%52%
599.14 8.1%38%
299.32 50.0%69%
928.73 -18.4%
APPENDIX D
GSI Mann-Kendall Toolkit for Constituent Trend Analysis
Evaluation Date:Job ID:
Facility Name:Constituent:
Conducted By:Concentration Units:ug/L
Sampling Point ID:MW-1 MW-3 MW-5 MW-12 MW-13
Sampling Sampling
Event Date
1 09/24/08 114 3.99 1010 62 21
2 09/03/09 104 3.95 592 97.8 61.5
3 12/21/09 168 8 93.9 38.4 34.6
4 03/24/10 123 14.6 128 34 34.5
5 09/27/10 72 54 1620 43 15.9
6 03/23/11 62 7.42 73.2 32.8 27.1
7 09/28/11 8 0 135 22 18.1
8 03/27/12 120 14 97.3 10.4 38.5
9 01/21/13 129 16 186 17.7 64.8
10 07/17/13 23 4 25.6 5.7 5.9
11 01/23/14 49 13 22.5 5.7 20.5
12 07/22/14 121 3 31.8 25.1
13 04/21/15 35 3 38.7 18.1
14 01/12/16 132 1 21.4 13.2
15 10/05/16 25.2 0 18.2 10.7
16 07/03/17 123 1.8 20.2 10.8
17 01/08/19 37.5 4.1 34.5 33.8
18 10/03/19 50.1 18.2 4.8 32.5
19 07/15/20 51.8 1.3 15.2 4.3 21.5
20
Coefficient of Variation:0.59 1.45 1.93 0.89 0.60
Mann-Kendall Statistic (S):-26 -55 -124 -68 -22
Confidence Factor:82.6%98.8%>99.9%>99.9%78.4%
Concentration Trend:Stable Decreasing Decreasing Decreasing Stable
Notes:
1.At least four independent sampling events per well are required for calculating the trend. Methodology is valid for 4 to 40 samples.
2.Confidence in Trend = Confidence (in percent) that constituent concentration is increasing (S>0) or decreasing (S<0): >95% = Increasing or Decreasing;
≥ 90% = Probably Increasing or Probably Decreasing; < 90% and S>0 = No Trend; < 90%, S≤0, and COV ≥ 1 = No Trend; < 90% and COV < 1 = Stable.
3.Methodology based on "MAROS: A Decision Support System for Optimizing Monitoring Plans", J.J. Aziz, M. Ling, H.S. Rifai, C.J. Newell, and J.R. Gonzales,
Ground Water, 41(3):355-367, 2003.
DISCLAIMER: The GSI Mann-Kendall Toolkit is available "as is". Considerable care has been exercised in preparing this software product; however, no party, including without
limitation GSI Environmental Inc., makes any representation or warranty regarding the accuracy, correctness, or completeness of the information contained herein, and no such
party shall be liable for any direct, indirect, consequential, incidental or other damages resulting from the use of this product or the information contained herein. Information in
this publication is subject to change without notice. GSI Environmental Inc., disclaims any responsibility or obligation to update the information contained herein.
GSI Environmental Inc., www.gsi-net.com
BENZENE CONCENTRATION (ug/L)
24-Jul-20
Noah Roberson Store Benzene
GSI MANN-KENDALL TOOLKIT
for Constituent Trend Analysis
Ethan Rogerson
11759
0.1
1
10
100
1000
10000
10/06 02/08 07/09 11/10 04/12 08/13 12/14 05/16 09/17 02/19 06/20 10/21Concentration (ug/L)Sampling Date
MW-1
MW-3
MW-5
MW-12
MW-13
Evaluation Date:Job ID:
Facility Name:Constituent:
Conducted By:Concentration Units:ug/L
Sampling Point ID:MW-1 MW-3 MW-5 MW-12 MW-13
Sampling Sampling
Event Date
1 09/24/08 905 0 6410 207 831
2 09/03/09 498 0 7350 302 1410
3 12/21/09 271 4 4470 55.6 1480
4 03/24/10 556 102 7460 185 2080
5 09/27/10 183 3,300 8630 105 809
6 03/23/11 51 12.4 1600 58.9 1240
7 09/28/11 68 2 2097 17.7 1131
8 03/27/12 188 156 2227 17.4 1574
9 01/21/13 89 220 879 0 1077
10 07/17/13 319 2 732 6 547
11 01/23/14 598 90 952 6.7 1440
12 07/22/14 440 10 888 1470
13 04/21/15 597 3 1540 1230
14 01/12/16 901 2 516 2290
15 10/05/16 1000 0 370 1370
16 07/03/17 608 4.5 590 858
17 01/08/19 103 0.93 421 182
18 10/03/19 376 460 2.4 479
19 07/15/20 353 17.8 655 0 775
20
Coefficient of Variation:0.69 3.44 1.09 1.34 0.44
Mann-Kendall Statistic (S):23 5 -89 -52 -11
Confidence Factor:79.5%56.4%>99.9%99.8%64.6%
Concentration Trend:No Trend No Trend Decreasing Decreasing Stable
Notes:
1.At least four independent sampling events per well are required for calculating the trend. Methodology is valid for 4 to 40 samples.
2.Confidence in Trend = Confidence (in percent) that constituent concentration is increasing (S>0) or decreasing (S<0): >95% = Increasing or Decreasing;
≥ 90% = Probably Increasing or Probably Decreasing; < 90% and S>0 = No Trend; < 90%, S≤0, and COV ≥ 1 = No Trend; < 90% and COV < 1 = Stable.
3.Methodology based on "MAROS: A Decision Support System for Optimizing Monitoring Plans", J.J. Aziz, M. Ling, H.S. Rifai, C.J. Newell, and J.R. Gonzales,
Ground Water, 41(3):355-367, 2003.
DISCLAIMER: The GSI Mann-Kendall Toolkit is available "as is". Considerable care has been exercised in preparing this software product; however, no party, including without
limitation GSI Environmental Inc., makes any representation or warranty regarding the accuracy, correctness, or completeness of the information contained herein, and no such
party shall be liable for any direct, indirect, consequential, incidental or other damages resulting from the use of this product or the information contained herein. Information in
this publication is subject to change without notice. GSI Environmental Inc., disclaims any responsibility or obligation to update the information contained herein.
XYLENES CONCENTRATION (ug/L)
GSI Environmental Inc., www.gsi-net.com
GSI MANN-KENDALL TOOLKIT
for Constituent Trend Analysis
24-Jul-20 11759
Noah Roberson Store Xylenes
Ethan Rogerson
0.1
1
10
100
1000
10000
10/06 02/08 07/09 11/10 04/12 08/13 12/14 05/16 09/17 02/19 06/20 10/21Concentration (ug/L)Sampling Date
MW-1
MW-3
MW-5
MW-12
MW-13
Evaluation Date:Job ID:
Facility Name:Constituent:
Conducted By:Concentration Units:ug/L
Sampling Point ID:MW-1 MW-3 MW-5 MW-12 MW-13
Sampling Sampling
Event Date
1 09/24/08 164 2.75 533 386 166
2 09/03/09 178 4.43 716 554 310
3 12/21/09 106 5 710 352 322
4 03/24/10 83 74.7 1250 452 266
5 09/27/10 16 919 509 392 162
6 03/23/11 26 26.9 202 357 174
7 09/28/11 37 2 1.3 344 236
8 03/27/12 54 75 319 286 272
9 01/21/13 34 129 179 416 328
10 07/17/13 96 3 186 274 152
11 01/23/14 104 72 217 238 271
12 07/22/14 105 13 281 258
13 04/21/15 83 4 325 249
14 01/12/16 177 6 298 583
15 10/05/16 143 1 277 309
16 07/03/17 134 20.3 340 261
17 01/08/19 44.1 96.7 270 262
18 10/03/19 73.5 264 362 331
19 07/15/20 74.1 23 299 395 300
20
Coefficient of Variation:0.55 2.70 0.78 0.24 0.35
Mann-Kendall Statistic (S):3 -2 -27 -25 49
Confidence Factor:53.0%51.6%83.5%92.7%96.6%
Concentration Trend:No Trend No Trend Stable Prob. Decreasing Increasing
Notes:
1.At least four independent sampling events per well are required for calculating the trend. Methodology is valid for 4 to 40 samples.
2.Confidence in Trend = Confidence (in percent) that constituent concentration is increasing (S>0) or decreasing (S<0): >95% = Increasing or Decreasing;
≥ 90% = Probably Increasing or Probably Decreasing; < 90% and S>0 = No Trend; < 90%, S≤0, and COV ≥ 1 = No Trend; < 90% and COV < 1 = Stable.
3.Methodology based on "MAROS: A Decision Support System for Optimizing Monitoring Plans", J.J. Aziz, M. Ling, H.S. Rifai, C.J. Newell, and J.R. Gonzales,
Ground Water, 41(3):355-367, 2003.
DISCLAIMER: The GSI Mann-Kendall Toolkit is available "as is". Considerable care has been exercised in preparing this software product; however, no party, including without
limitation GSI Environmental Inc., makes any representation or warranty regarding the accuracy, correctness, or completeness of the information contained herein, and no such
party shall be liable for any direct, indirect, consequential, incidental or other damages resulting from the use of this product or the information contained herein. Information in
this publication is subject to change without notice. GSI Environmental Inc., disclaims any responsibility or obligation to update the information contained herein.
NAPHTHALENE CONCENTRATION (ug/L)
GSI Environmental Inc., www.gsi-net.com
GSI MANN-KENDALL TOOLKIT
for Constituent Trend Analysis
24-Jul-20 11759
Noah Roberson Store Naphthalene
Ethan Rogerson
0.1
1
10
100
1000
10000
10/06 02/08 07/09 11/10 04/12 08/13 12/14 05/16 09/17 02/19 06/20 10/21Concentration (ug/L)Sampling Date
MW-1
MW-3
MW-5
MW-12
MW-13