FA-7764_42045_CA_MRP_20221108

i
Table of Contents
A. SITE INFORMATION ............................................................................................................................................... 1
1. Site Identification .............................................................................................................................................. 1
2. Contacts Associated with the Leaking UST System. .......................................................................................... 1
3. Information about the Release: ........................................................................................................................ 2
B. EXECUTIVE SUMMARY ........................................................................................................................................... 3
C. SITE HISTORY AND CHARACTERIZATION ............................................................................................................... 4
1. UST Owner and Operator Information: ............................................................................................................. 4
2. UST Information: ............................................................................................................................................... 4
3. Non-UST Information: ....................................................................................................................................... 5
4. Location of Current UST System Relative to Historical Releases....................................................................... 5
5. Site Characteristics: ........................................................................................................................................... 5
6. Property Owners and Occupants ...................................................................................................................... 6
7. Receptors and Potential Receptors ................................................................................................................... 6
8. Implementation of the Remedial Plan .............................................................................................................. 7
9. Progress of Remediation ................................................................................................................................... 7
D. CURRENT SITE ASSESSMENT INFORMATION ......................................................................................................... 8
E. FREE PRODUCT REMOVAL ................................................................................................................................. 8
F. MONITORED NATURAL ATTENUATION ............................................................................................................. 8
G. CONCLUSIONS ....................................................................................................................................................... 8
H. STATEMENTS AND CERTIFICATION .................................................................................................................... 9

Tables Table 1: Well Construction Data
Table 2: Chronologic Listing of Groundwater Elevations
Table 3: Listing of Groundwater Chemistry – August 29, 2022
Table 4: Chronologic Listing of Groundwater Chemistry

Figures Figure 1: Topographic Location Map
Figure 2: Vicinity Map
Figure 3: Site Map with Monitoring Well Locations
Figure 4: Approximate Distribution of Benzene in Groundwater
Figure 5: Approximate Distribution of Ethylbenzene in Groundwater
Figure 6: Approximate Distribution of Naphthalene in Groundwater

Appendices Appendix A: Laboratory Chain of Custody Form
Appendix B: Laboratory Analytical Report

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Exxon Shop No. 7 Monitoring Report
HEA Project No. 17-1011 November 8, 2022
1
Monitoring Report
A. SITE INFORMATION
1. Site Identification Date of Report: November 8, 2022
Facility I.D.: 00-2-0000018177 UST Incident Number (if known): 42045
Site Name: Exxon Shop No. 7
Site Street Address: 2801 N. Roberts Avenue (Highway 211)
City/Town: Lumberton Zip Code: 28538 County: Robeson
Description of Geographical Data Point (e.g., dispenser): Center Former UST Basin
Location Method (GPS, topographical map, other): GIS
Latitude (decimal degrees): 34.644565 Longitude (decimal degrees): 79.012427

2. Contacts Associated with the Leaking UST System (Addresses must include street, city, state, zip code and mailing address, if different). UST Owner: Red Springs Fuel Oil Company, Inc.
Address: P.O. Box 827, Red Springs, NC 28377 Tel.: [phone]
UST Operator: Red Springs Fuel Oil Company, Inc.
Address: P.O. Box 827, Red Springs, NC 28377 Tel: [phone]
Property Owner: RSO Holdings, LLC
Address: P.O. Box 637, Elizabethtown, NC 28337 Tel: [phone]
Property Occupant: Minuteman No. 38 (C-Store)
Address: 2801 N. Roberts Avenue, Lumberton NC 28358 Tel: [phone]
Consultant: Haggett Engineering Associates, Inc.
Address: 5307 South College Road, Wilmington NC 28412 Tel: [phone]

Contractor: Environmental Hydrogeological Consultants, Inc.
Address: 207 W. 4th Avenue, Red Springs NC 28377 Tel: [phone]
Analytical Laboratory: Pace Analytical National State Certification No.: ENV375
Address: 12065 Lebanon Road, Mt. Juliet, TN 37122 Tel: [phone]
Exxon Shop No. 7 Monitoring Report
HEA Project No. 17-1011 November 8, 2022
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3. Information about the Release:
Date Discovered: October 16, 2016 (per UST-61)
Estimated Quantity of Release: unknown
Cause of Release: unknown
Source of Release (Dispenser/Piping/UST): UST System
Sizes and contents of UST system(s) from which the release occurred): Unknown. There are
four (4) UST’s with the basin. Refer to UST Information in C.2 below.

Exxon Shop No. 7 Monitoring Report
HEA Project No. 17-1011 November 8, 2022
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B. EXECUTIVE SUMMARY On April 11, 2017 the Division of Waste Management (DWM) issued a Notice of Regulatory Requirements (NORR) to complete a Site Check. The Site Check Report was received by DWM on July 7, 2017.
DWM issued a NORR on July 20, 2017 requesting the completion of a Limited Site Assessment (LSA). On July 20, 2017, the property was purchased by RSO Holdings, LLC and is currently
occupied by the Minuteman No. 39 convenience store. The Limited Site Assessment report was completed on February 26, 2018 and transmitted to the Fayetteville Regional Office (FRO) on February 27, 2018.
Due to the elevated levels of Benzene reported in MW-1, two additional groundwater sampling events were completed on May 3, 2018 and November 15, 2018. The results of these sampling events were reported to the FRO in a letter report dated December 17, 2018. Benzene levels in MW-1 were reported above the Gross Contamination level.
DWM issued a NORR on January 11, 2019 requesting the completion of a Comprehensive Site Assessment (CSA). During follow up discussions, the scope of work requested was revised to include the installation of five additional monitoring wells and a Monitoring Report instead of a CSA at this time.
EHC mobilized to the site on July 22, 2019 to begin installation of monitoring wells MW-2 through MW-6D. The area surrounding the site is served by public water and sewer according to the City of Lumberton.
No wells were identified within 1,500 feet of the site. Based on a review of the USGS Topographic Map, surface water flow is likely to the north or northeast towards Meadow Branch. This surface water is approximately 860 feet from the UST Basin at this site. A
portion of the USGS Lumberton Quadrangle is provided as Figure 1.
Gauging data from wells MW-5 and MW-6D continue to indicate a vertical gradient at the site. Groundwater elevations at the site are approximately the same as during the October 19, 2021 sampling event.

Monitoring wells MW-1, MW-2, MW-3 and MW-4 were reported to contain concentrations of hydrocarbon constituents exceeding the 15A NCAC 2L standards. No constituents were reported above the Gross Contamination Levels. Lead was reported in each of the wells.
Gross contamination levels were last reported in monitoring well MW-1 during the
November 15, 2018 sampling event. Therefore, HEA recommends that the Division consider this incident for closure with the existing deed restriction.
Exxon Shop No. 7 Monitoring Report
HEA Project No. 17-1011 November 8, 2022
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C. SITE HISTORY AND CHARACTERIZATION
1. UST Owner and Operator Information:
UST ID Number 1 through 4 Facility ID Number 0-2-0000018177
Name of Owner Dates of Operation (mm/dd/yy to mm/dd/yy)
Red Springs Fuel Oil Company, Inc. 10/1/1995 to 7/20/2017
Street Address
P.O. Box 827
City State Zip Telephone Number
Red Springs NC 28377 [phone]
Name of Operator Dates of Operation (mm/dd/yy to mm/dd/yy)
Red Springs Fuel Oil Company, Inc. 10/1/1995 to 7/20/2017
Street Address
P.O. Box 827
City State Zip Telephone Number
Red Springs NC 28377 [phone]
Incident Number 42045
Name of Other Responsible Party Dates of Release(s) (mm/dd/yy to mm/dd/yy)
N/A Unknown
Street Address

City State Zip Telephone Number

2. UST Information:
UST ID Number
Last Contents of Tank
Previous Contents of Tank
Tank Capacity (gallons)
Construction (material) Tank Dimensions
Description of Piping & Pumps
Installation Date Status of UST
Release associated with Tank, Piping or Pump
1 Gasoline Regular N/A 12,000 SW/FRP 8’ Ø x 37’-0.5” L
SW Flex Pipe, STP 10/1/1995 Active Yes
Exxon Shop No. 7 Monitoring Report
HEA Project No. 17-1011 November 8, 2022
5
UST ID Number
Last Contents of Tank
Previous Contents of Tank
Tank Capacity (gallons)
Construction (material) Tank Dimensions
Description of Piping & Pumps
Installation Date Status of UST
Release associated with Tank, Piping or Pump
2 Gasoline Plus N/A 10,000 SW/FRP 8’ Ø x 31’-6.5” L
SW Flex Pipe, STP 10/1/1995 Active Yes
3 Gasoline Premium N/A 10,000 SW/FRP 8’ Ø x 31’-6.5” L
SW Flex Pipe, STP 10/1/1995 Active Yes
4 Diesel Fuel N/A 5,000 SW/FRP 8’ Ø x 17’-8.5” L
SW Flex Pipe, STP 10/1/1995 Active Yes

3. Non-UST Information: Not Applicable.

4. Location of Current UST System Relative to Historical Releases (UST, Non-UST
releases, and Off-site releases):
The current UST system is located in the southwest corner of the property near the
intersection of N. Rowland Avenue and Capuano Street. A previous incident at this site, 13344 received a No Further Action letter on June 9, 1998.
5. Site Characteristics:

The property is currently owned by RSO Holdings, LLC according to records obtained from the Robeson County GIS and is occupied by convenience store and car wash. The facility is currently in operation. A copy of the 2016 USGS topographic map is provided as Figure 1. Figure 2 provides a Vicinity Map based on the 2017 aerial photography. A
Site Map with Monitoring Well Locations is provided as Figure 3. Information from the
USGS Lumberton quadrangles indicates that surface water flow from the site is likely to the north or northeast towards Meadow Branch. This surface water is located approximately 1,100 feet north from the UST Basin. An un-named tributary to Meadow Branch is located 860 feet to the northeast and Loch Ness Lake is located 1,450 feet to
the northeast.
During the August 29, 2022 sampling event the groundwater was observed at depths ranging from 11.67 feet BLS to 14.19 feet BLS. Table 2 provides a chronologic listing of groundwater elevations. Gauging data from MW-5 and MW-6D continue to indicates a
vertical gradient.

Exxon Shop No. 7 Monitoring Report
HEA Project No. 17-1011 November 8, 2022
6
Groundwater flow at the site is to the north towards Meadow Branch. See Figure 3.
Soil at the site has been reported to be primarily fine to medium sand with some silt. No
confining layers or rock were encountered during the installation of MW-6D. Layers of medium sand and some shell hash were observed during the installation of MW-6D. The aquifer thickness is unknown.

6. Property Owners and Occupants

PIN Owner/ Occupant Name
(Last, First MI) Property Address
93926536000 Planters Oil Company Liberty Gas Station 2759 N. Roberts Avenue Lumberton, NC 28358
93926530700 Ivey Judy Melton Heirs 410 W. 36th Street Lumberton, NC 28358
939265031500 Pritesh, Inc. Red Roof Inn 3530 Capuano Street Lumberton, NC 28358
939255941600 Liam Properties, LLC Tuscan Garden Restaurant 3534 Capuano Street Lumberton, NC 28358

7. Receptors and Potential Receptors Water Supply Wells

Well ID Well Owner / User
(indicate which)
Latitude
(decimal degrees)
Longitude
(decimal degrees)
Well Use
Distance from source area of release
(ft.) Up or Downgradient None Identified

Exxon Shop No. 7 Monitoring Report
HEA Project No. 17-1011 November 8, 2022
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Surface Water
Receptor ID
Description of Geographical Point
Latitude
(decimal degrees
Longitude
(decimal degrees)
Description of Receptor
Distance from source area of release
(ft.) Up or Downgradient SW-1 Top Bank 34.644188 79.009692 UT to Meadow Branch 860 D
Wellhead Protection Areas
Receptor ID
Description of Geographical Point
Latitude (decimal
degrees
Longitude (decimal
degrees)
Description of Receptor
Distance from source area of release
(ft.) Up or Downgradient None

Subsurface Structures

Receptor ID
Description of Geographical Point
Latitude
(decimal degrees
Longitude
(decimal degrees)
Description of Receptor
Distance from source area of release
(ft.) Up or Downgradient SD-1 Drop Inlet 34.644611 79.012515 Storm Drain 18 U
The storm drain appears to connect to the NCDOT roadside system.

8. Implementation of the Remedial Plan
Not Applicable
9. Progress of Remediation
Not Applicable

Exxon Shop No. 7 Monitoring Report
HEA Project No. 17-1011 November 8, 2022
8
D. CURRENT SITE ASSESSMENT INFORMATION
On August 29, 2022, groundwater samples were collected from monitoring wells MW-1
through MW-6D. Samples from the monitoring wells were submitted to Pace Analytical in Mt. Juliet, TN for analysis. Samples from monitoring wells MW-1 through MW-6D were analyzed by
standard method 6200B, method 6010B and EPA 504.1.
Table 1 provides information concerning the construction of the monitoring wells. Table 2 provided a chronologic listing of the groundwater elevations.

Table 3 provides a listing of the groundwater chemistry from the August 29, 2022 sampling event. Table 4 provides a chronologic listing of groundwater chemistry.

Groundwater elevations at the site are approximately the same as those reported during the October 19, 2021 sampling event. Monitoring wells MW-1, MW-2, MW-3 and MW-4 were reported to contain dissolved
concentrations of hydrocarbon constituents exceeding the 15A NCAC 2L standards. Lead
was reported in each of the monitoring wells. None of the monitoring wells were reported to contain concentrations exceeding the Gross Contamination Levels (GCL’s). Gauging data from monitoring wells MW-5 and MW-6D indicates the presence of a vertical
gradient at the site.
A copy of the Chain of Custody Form is provided in Appendix “A” and a complete copy of the laboratory analytical report is provided in Appendix “B”.
E. FREE PRODUCT REMOVAL
Not Applicable

F. MONITORED NATURAL ATTENUATION
Not Applicable
G. CONCLUSIONS
Gross contamination levels were last reported in monitoring well MW-1 during the
November 15, 2018 sampling event. Therefore, HEA recommends that the Division consider this incident for closure with the existing deed restriction.
Exxon Shop No. 7 Monitoring Report
HEA Project No. 17-1011 November 8, 2022
Tables
Table 1: Well Construction Data
Table 2: Chronologic Listing of Groundwater Elevations
Table 3: Listing of Groundwater Chemistry – August 29, 2022
Table 4: Chronologic Listing of Groundwater Chemistry

Monitoring Well Date Casing Total Screened Slot TOC Cover
Completed Diameter Depth Interval Size Elevation Type
(inch)(feet)(feet BGS)(inch)(feet)
MW-1 21-Dec-17 2 18.0 8 to 18 0.010 132.92 flush
MW-2 24-Jul-19 2 20.0 5 to 20 0.010 133.01 flush
MW-3 24-Jul-19 2 20.0 5 to 20 0.010 132.78 flush
MW-4 23-Jul-19 2 20.0 5 to 20 0.010 133.94 flush
MW-5 23-Jul-19 2 20.0 5 to 20 0.010 132.58 flush
MW-6D 23-Jul-19 2 40.0 35 to 40 0.010 132.58 flush
Notes:
Well casing elevations are from a survey by Robert E. Leach II, PLS and are relative to NAVD 1988.
Exxon Shop No. 7
2801 N. Roberts Avenue
Lumberton, NC 28358
Well Construction Data
Table 1
Page 1
Monitoring Well TOC Screen Date Depth to Depth to NAPL Groundwater
Elevation Interval NAPL Water Thickness Elevation
(feet)(feet)(feet)(feet)(feet)(feet)
MW-1 132.92 8 to 18 12/28/2017 NA 9.43 0.00 123.49
5/3/2018 NA 9.53 0.00 123.39
11/15/2018 NA 8.94 0.00 123.98
7/30/2019 10.05 10.06 0.01 122.87
5/11/2020 NA 8.66 0.00 124.26
10/19/2021 NA 12.20 0.00 120.72
8/29/2022 NA 11.95 0.00 120.97
MW-2 133.01 5 to 20 7/30/2019 NA 10.52 0.00 122.49
5/11/2020 NA 8.18 0.00 124.83
10/19/2021 NA 12.10 0.00 120.91
8/29/2022 NA 11.67 0.00 121.34
MW-3 132.78 5 to 20 7/30/2019 NA 11.24 0.00 121.54
5/11/2020 NA 9.01 0.00 123.77
10/19/2021 NA 12.80 0.00 119.98
8/29/2022 NA 12.34 0.00 120.44
MW-4 133.94 5 to 20 7/30/2019 NA 11.90 0.00 122.04
5/11/2020 NA 9.71 0.00 124.23
10/19/2021 NA 13.50 0.00 120.44
8/29/2022 NA 12.29 0.00 121.65
MW-5 132.58 5 to 20 7/30/2019 NA 11.35 0.00 121.23
5/11/2020 NA 9.41 0.00 123.17
10/19/2021 NA 12.85 0.00 119.73
8/29/2022 NA 12.63 0.00 119.95
MW-6D 132.58 35 to 40 7/30/2019 NA 12.83 0.00 119.75
5/11/2020 NA 10.46 0.00 122.12
10/19/2021 NA 14.25 0.00 118.33
8/29/2022 NA 14.19 0.00 118.39
Notes:
Exxon Shop No. 7
2801 N. Roberts Avenue
Lumberton, North Carolina 28358
Chronologic Listing of Groundwater Elevations
Table 2
Page 1 of 1
Method Constituent MW-1 MW-2 MW-3 MW-4 MW-5 MW-6D 2L GCL
Well Depth18.0 20.0 20.0 20.0 20.0 40.0 GWQS
Sample Locationwell well well well well well
Metals
6010D Lead 34.5 127 135 26.4 83.3 BDL 15 15000
Volatile Organic Compounds
SM6200B Acetone BDL BDL BDL BDL BDL BDL
Acrolein BDL BDL BDL BDL BDL BDL
Acrylonitrile BDL BDL BDL BDL BDL BDL
Benzene 1950 6.67 BDL BDL BDL BDL 1 5000
Bromobenzene BDL BDL BDL BDL BDL BDL
Bromodichloromethane BDL BDL BDL BDL BDL BDL
Bromoform BDL BDL BDL BDL BDL BDL
Bromomethane BDL BDL BDL BDL BDL BDL
N-Butylbenzene BDL BDL BDL BDL BDL BDL 70 6900
Sec-Butylbenzene BDL BDL BDL 2.30 BDL BDL 70 8500
Tert-Butylbenzene BDL BDL BDL BDL BDL BDL
Carbon Tetrachloride BDL BDL BDL BDL BDL BDL
Chlorobenzene BDL BDL BDL BDL BDL BDL
Chlorodibromomethane BDL BDL BDL BDL BDL BDL
Chloroethane BDL BDL BDL BDL BDL BDL
Chloroform BDL BDL BDL BDL BDL BDL
Chloromethane BDL BDL BDL BDL BDL BDL
2-Chlorotoluene BDL BDL BDL BDL BDL BDL
Exxon Shop No. 7
2801 N. Roberts Avenue
Listing of Groundwater Chemistry - August 29, 2022
Lumberton, North Carolina 28358
Table 3
Page 1 of 4
Method Constituent MW-1 MW-2 MW-3 MW-4 MW-5 MW-6D 2L GCL
Well Depth18.0 20.0 20.0 20.0 20.0 40.0 GWQS
Sample Locationwell well well well well well
Listing of Groundwater Chemistry - August 29, 2022
SM6200B 4-Chlorotoluene BDL BDL BDL BDL BDL BDL
1,2-Dibromo-3-Chloropropane BDL BDL BDL BDL BDL BDL
1,2-Dibromoethane BDL BDL BDL BDL BDL BDL
Dibromomethane BDL BDL BDL BDL BDL BDL
1,2-Dichlorobenzene BDL BDL BDL BDL BDL BDL
1,3-Dichlorobenzene BDL BDL BDL BDL BDL BDL
1,4-Dichlorobenzene BDL BDL BDL BDL BDL BDL
Dichlorodifluoromethane BDL BDL BDL BDL BDL BDL
1,1-Dichloroethane BDL BDL BDL BDL BDL BDL
1,2-Dichloroethane BDL BDL BDL BDL BDL BDL
1,1-Dichloroethene BDL BDL BDL BDL BDL BDL
Cis-1,2-Dichloroethene BDL BDL BDL BDL BDL BDL
Trans-1,2-Dichloroethene BDL BDL BDL BDL BDL BDL
1,2-Dichloropropane BDL BDL BDL BDL BDL BDL
1,1-Dichloropropene BDL BDL BDL BDL BDL BDL
1,3-Dichloropropane BDL BDL BDL BDL BDL BDL
2,2-Dichloropropane BDL BDL BDL BDL BDL BDL
Di-Isopropyl Ether BDL BDL BDL BDL BDL BDL
Ethylbenzene 2810 1.34 BDL 20.6 BDL BDL 600 84500
Hexachloro-1,3-Butadiene BDL BDL BDL BDL BDL BDL
Isopropylbenzene 159 BDL BDL 7.28 BDL BDL 70 25000
P-Isopropyltoluene BDL BDL BDL BDL BDL BDL 25 11700
2-Butanone (Mek)BDL BDL BDL BDL BDL BDL
Methylene Chloride BDL BDL BDL BDL BDL BDL
Table 3
Page 2 of 4
Method Constituent MW-1 MW-2 MW-3 MW-4 MW-5 MW-6D 2L GCL
Well Depth18.0 20.0 20.0 20.0 20.0 40.0 GWQS
Sample Locationwell well well well well well
Listing of Groundwater Chemistry - August 29, 2022
SM6200B 4-Methyl-2-Pentanone (Mibk)BDL BDL BDL BDL BDL BDL
Methyl Tert-Butyl Ether BDL BDL BDL BDL BDL BDL
Naphthalene 1230 BDL BDL 19.8 BDL BDL 6 6000
N-Propylbenzene 607 BDL BDL 21.1 BDL BDL 70 30000
Styrene BDL BDL BDL BDL BDL BDL
1,1,1,2-Tetrachloroethane BDL BDL BDL BDL BDL BDL
1,1,2,2-Tetrachloroethane BDL BDL BDL BDL BDL BDL
Tetrachloroethene BDL BDL BDL 4.47 BDL BDL 0.7 700
Toluene BDL BDL BDL BDL BDL BDL 600 260000
1,2,3-Trichlorobenzene BDL BDL BDL BDL BDL BDL
1,2,4-Trichlorobenzene BDL BDL BDL BDL BDL BDL
1,1,1-Trichloroethane BDL BDL BDL BDL BDL BDL
1,1,2-Trichloroethane BDL BDL BDL BDL BDL BDL
Trichloroethene BDL BDL BDL BDL BDL BDL
Trichlorofluoromethane BDL BDL BDL BDL BDL BDL
1,2,3-Trichloropropane BDL BDL BDL BDL BDL BDL
1,2,4-Trimethylbenzene 303 BDL BDL BDL BDL BDL 400 28500
1,3,5-Trimethylbenzene BDL BDL BDL BDL BDL BDL 400 25000
Vinyl Chloride BDL BDL BDL BDL BDL BDL
O-Xylene BDL BDL BDL BDL BDL BDL
M&P-Xylene BDL BDL BDL BDL BDL BDL
Total Xylenes BDL BDL BDL BDL BDL BDL 500 85500
Ethanol BDL BDL BDL BDL BDL BDL
Ethyl Tert-Butyl Ether BDL BDL BDL BDL BDL BDL
Table 3
Page 3 of 4
Method Constituent MW-1 MW-2 MW-3 MW-4 MW-5 MW-6D 2L GCL
Well Depth18.0 20.0 20.0 20.0 20.0 40.0 GWQS
Sample Locationwell well well well well well
Listing of Groundwater Chemistry - August 29, 2022
SM6200B T-Amyl Alcohol BDL 121 BDL BDL BDL BDL 156 2330
Tert-Butyl Alcohol BDL 17.1 BDL BDL BDL BDL 1400 21000
Tert-Amyl Methyl Ether BDL BDL BDL BDL BDL BDL
504.1 Ethylene Dibromide BDL BDL BDL BDL BDL BDL
1,2-Dibromo-3-Chloropropane BDL BDL BDL BDL BDL BDL
Notes:BDL = Below Detection Limit
NA = Constituent Not Analyzed
NSFP = Not Sampled Free Product in well
Results are presented in ug/l.
Values in Green are above the detection limit, but below the 2L Standard.
Values in Red Bold exceed the 15A NCAC 2L Class GA groundwater quality standard.
Values in Red Bold Italic exceed the 9/18/2014 Gross Contamination Level (GCL).
EDB / DBCP
Table 3
Page 4 of 4
Well ID Date Benzene
ug/l
Ethylbenzene
ug/l
Toluene
ug/l
Xylenes
ug/l
MTBE
ug/l
IPE
ug/l
Naphthalene
ug/l
MW-1 12/28/2017 4800 3860 4410 8000 11.6 16.40 1050
5/3/2018 6700 4000 7600 11000 BDL 9.90 1400
11/15/2018 5380 3430 2250 5610 5.15 7.36 1050
7/30/2019
5/11/2020 2560 3790 324 3250 BDL 3.20 2240
10/19/2021 3230 3630 209 2238 BDL BDL 1060
8/29/2022 1950 2810 BDL BDL BDL BDL 1230
MW-2 7/30/2019 1.14 BDL BDL BDL BDL BDL BDL
5/11/2020 5.14 0.950 BDL BDL BDL BDL BDL
10/19/2021 3.38 2.39 BDL BDL BDL BDL BDL
8/29/2022 6.67 1.34 BDL BDL BDL BDL BDL
MW-3 7/30/2019 BDL 12.0 BDL 9 BDL BDL 4.25
5/11/2020 BDL BDL BDL BDL BDL BDL BDL
10/19/2021 BDL 24.5 BDL 27.3 BDL BDL 20.9
8/29/2022 BDL BDL BDL BDL BDL BDL BDL
MW-4 7/30/2019 0.67 46.10 BDL BDL BDL BDL 35.8
5/11/2020 0.850 74.5 BDL BDL BDL BDL 83.4
10/19/2021 BDL 33.9 BDL BDL BDL BDL 34.7
8/29/2022 BDL 20.6 BDL BDL BDL BDL 19.8
MW-5 7/30/2019 BDL BDL BDL BDL BDL BDL BDL
5/11/2020 BDL BDL BDL BDL BDL BDL BDL
10/19/2021 BDL BDL BDL BDL BDL BDL BDL
8/29/2022 BDL BDL BDL BDL BDL BDL BDL
MW-6D 7/30/2019 BDL BDL BDL BDL BDL BDL BDL
5/11/2020 BDL BDL BDL BDL BDL BDL BDL
10/19/2021 BDL BDL BDL BDL BDL BDL BDL
8/29/2022 BDL BDL BDL BDL BDL BDL BDL
Exxon Shop No. 7
2801 N. Roberts AvenueLumberton, North Carolina 28358
Chronologic Listing of Groundwater Chemistry
WELL NOT SAMPLED DUE TO FREE PRODUCT
Table 4
Page 1 of 2
Well ID Date Benzene
ug/l
Ethylbenzene
ug/l
Toluene
ug/l
Xylenes
ug/l
MTBE
ug/l
IPE
ug/l
Naphthalene
ug/l
Exxon Shop No. 7
2801 N. Roberts AvenueLumberton, North Carolina 28358
Chronologic Listing of Groundwater Chemistry
Notes:NA = Not Analyzed
BDL = Below Detection Limit
Values in Blue text have not changed since the previous sampling event.
Values in Green have decreased since the previous sampling event.
Values in Red have increased since the previous sampling event.
Table 4
Page 2 of 2
Exxon Shop No. 7 Monitoring Report
HEA Project No. 17-1011 November 8, 2022
Figures

Figure 1: Topographic Map – 2016 USGS
Figure 2: Vicinity Map
Figure 3: Site Map with Monitoring Well Locations
Figure 4: Approximate Distribution of Benzene in Groundwater
Figure 5: Approximate Distribution of Ethylbenzene in Groundwater
Figure 6: Approximate Distribution of Naphthalene in Groundwater

FIGURE NO.:1RED SPRINGS FUEL OIL COMPANY, INC. - EXXON SHOP NO. 7 - 2016 USGS LUMBERTON NE, NW, SE & SW QUADSSCALE: 1" = 2000'
SITE
ROBESON COUNTY 2021 DIGITAL AERIAL IMAGERY AND 2016 PARCELS
NOVEMBER 8, 2022
AS SHOWN
17-1011
17101102
FIGURE NO.:
JOB:
FILE:
DATE:
SCALE:
2
VICINITY MAP
-
LUMBERTON, NORTH CAROLINA 28358
2801 N. ROBERTS AVENUE
EXXON SHOP NO. 7
RED SPRINGS FUEL OIL COMPANYHAGGETT ENGINEERING ASSOCIATES, INC.
5307 SOUTH COLLEGE ROAD, SUITE 2B
WILMINGTON, NORTH CAROLINA 28412
PHONE: [phone]
REFERENCES:
D. HAGGETT
LICENSE NO.: C-1111
5002501250
GRAPHIC SCALE
1 inch = 250 feet
250
DFT CHECK:
ENG CHECK:
APPROVAL:
DRAWN:
SFH
DNH
LEGEND
PROPERTY BOUNDARY
1000' RADIUS
SITE
N.

R
O
B
E
R
T
S

A
V
E
N
U
E

(
N
C

2
1
1
)I-95 NBLI-95 SBLN. ROWLAND AVEK
A
H
N

D
R
I
V
E
W.
3
6
T
H

S
T
R
E
E
T
N. McMILLAN AVECAPUANO STW. 35
T
H

S
T
R
E
E
TLACKEY STN. FLOYD AVE
ROBESON COUNTY 2021 DIGITAL AERIAL IMAGERY AND 2016 PARCELS
NOVEMBER 8, 2022
AS SHOWN
17-1011
17101103
FIGURE NO.:
JOB:
FILE:
DATE:
SCALE:
3
LUMBERTON, NORTH CAROLINA 28358
2801 N. ROBERTS AVENUE
EXXON SHOP NO. 7
RED SPRINGS FUEL OIL COMPANYHAGGETT ENGINEERING ASSOCIATES, INC.
5307 SOUTH COLLEGE ROAD, SUITE 2B
WILMINGTON, NORTH CAROLINA 28412
PHONE: [phone]
REFERENCES:
D. HAGGETT
LICENSE NO.: C-1111
8040200
GRAPHIC SCALE
1 inch = 40 feet
40
DFT CHECK:
ENG CHECK:
APPROVAL:
DRAWN:
SFH
DNH
LEGEND
PROPERTY BOUNDARY
N. ROBERTS AVENUE - HIGHWAY 211CANOPY
C-STORE
I-95 RA
M
P
C
A
P
U
A
N
O

S
T
R
E
E
T
N. RO
W
L
A
N
D
A
V
E
N
U
E
UST BASIN
MONITORING WELLMW 1
MW-1
MW-2
MW-5
MW-4
MW-3
MW-6D
AND WATER SURFACE CONTOURS
SITE MAP WITH MONITORING WELL LOCATIONS121.2121.0120.8120.6120.4120.2120.0
ROBESON COUNTY 2021 DIGITAL AERIAL IMAGERY AND 2016 PARCELS
NOVEMBER 8, 2022
AS SHOWN
17-1011
17101104
FIGURE NO.:
JOB:
FILE:
DATE:
SCALE:
4
LUMBERTON, NORTH CAROLINA 28358
2801 N. ROBERTS AVENUE
EXXON SHOP NO. 7
RED SPRINGS FUEL OIL COMPANYHAGGETT ENGINEERING ASSOCIATES, INC.
5307 SOUTH COLLEGE ROAD, SUITE 2B
WILMINGTON, NORTH CAROLINA 28412
PHONE: [phone]
REFERENCES:
D. HAGGETT
LICENSE NO.: C-1111
8040200
GRAPHIC SCALE
1 inch = 40 feet
40
DFT CHECK:
ENG CHECK:
APPROVAL:
DRAWN:
SFH
DNH
LEGEND
PROPERTY BOUNDARY
N. ROBERTS AVENUE - HIGHWAY 211CANOPY
C-STORE
I-95 RA
M
P
C
A
P
U
A
N
O

S
T
R
E
E
T
N. RO
W
L
A
N
D
A
V
E
N
U
E
UST BASIN
MONITORING WELLMW 1
MW-1
MW-2
MW-5
MW-4
MW-3
MW-6D
IN GROUNDWATER
APPROXIMATE DISTRIBUTION OF BENZENE
1
500
1000
ROBESON COUNTY 2021 DIGITAL AERIAL IMAGERY AND 2016 PARCELS
OCTOBER 8, 2022
AS SHOWN
17-1011
17101105
FIGURE NO.:
JOB:
FILE:
DATE:
SCALE:
5
LUMBERTON, NORTH CAROLINA 28358
2801 N. ROBERTS AVENUE
EXXON SHOP NO. 7
RED SPRINGS FUEL OIL COMPANYHAGGETT ENGINEERING ASSOCIATES, INC.
5307 SOUTH COLLEGE ROAD, SUITE 2B
WILMINGTON, NORTH CAROLINA 28412
PHONE: [phone]
REFERENCES:
D. HAGGETT
LICENSE NO.: C-1111
8040200
GRAPHIC SCALE
1 inch = 40 feet
40
DFT CHECK:
ENG CHECK:
APPROVAL:
DRAWN:
SFH
DNH
LEGEND
PROPERTY BOUNDARY
N. ROBERTS AVENUE - HIGHWAY 211CANOPY
C-STORE
I-95 RA
M
P
C
A
P
U
A
N
O

S
T
R
E
E
T
N. RO
W
L
A
N
D
A
V
E
N
U
E
UST BASIN
MONITORING WELLMW 1
MW-1
MW-2
MW-5
MW-4
MW-3
MW-6D
IN GROUNDWATER
APPROXIMATE DISTRIBUTION OF ETHYLBENZENE
1000
600
2000
ROBESON COUNTY 2021 DIGITAL AERIAL IMAGERY AND 2016 PARCELS
NOVEMBER 8, 2022
AS SHOWN
17-1011
17101106
FIGURE NO.:
JOB:
FILE:
DATE:
SCALE:
6
LUMBERTON, NORTH CAROLINA 28358
2801 N. ROBERTS AVENUE
EXXON SHOP NO. 7
RED SPRINGS FUEL OIL COMPANYHAGGETT ENGINEERING ASSOCIATES, INC.
5307 SOUTH COLLEGE ROAD, SUITE 2B
WILMINGTON, NORTH CAROLINA 28412
PHONE: [phone]
REFERENCES:
D. HAGGETT
LICENSE NO.: C-1111
8040200
GRAPHIC SCALE
1 inch = 40 feet
40
DFT CHECK:
ENG CHECK:
APPROVAL:
DRAWN:
SFH
DNH
LEGEND
PROPERTY BOUNDARY
N. ROBERTS AVENUE - HIGHWAY 211CANOPY
C-STORE
I-95 RA
M
P
C
A
P
U
A
N
O

S
T
R
E
E
T
N. RO
W
L
A
N
D
A
V
E
N
U
E
UST BASIN
MONITORING WELLMW 1
MW-1
MW-2
MW-5
MW-4
MW-3
MW-6D
IN GROUNDWATER
APPROXIMATE DISTRIBUTION OF NAPHTHALENE
6
500
6
1000
Exxon Shop No. 7 Monitoring Report
HEA Project No. 17-1011 November 8, 2022
Appendices

Appendix A: Laboratory Chain of Custody Record
Appendix B: Laboratory Analytical Report
Exxon Shop No. 7 Monitoring Report
HEA Project No. 17-1011 November 8, 2022
Appendix “A”

Laboratory Chain of Custody Record

Exxon Shop No. 7 Monitoring Report
HEA Project No. 17-1011 November 8, 2022
Appendix “B”

Laboratory Analytical Report

ANALYTICAL REPORT
September 13, 2022
EHC, Inc.
Sample Delivery Group:L1530810
Samples Received:08/30/2022
Project Number:42045-05
Description:Exxon Shop 7
Site:LUMBERTON, NC
Report To:Thomas Ammons
PO Box 902
Red Springs, NC 28377
Entire Report Reviewed By:
September 13, 2022
[Preliminary Report]
Heather J Wagner
Project Manager
Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received.
Pace Analytical National
12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 www.pacenational.com
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
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September 14, 2022
Heather J Wagner
Project Manager
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
EHC, Inc.42045-05 L1530810 09/14/22 09:32 1 of 29
TABLE OF CONTENTS
Cp: Cover Page 1
Tc: Table of Contents 2
Ss: Sample Summary 3
Cn: Case Narrative 4
Sr: Sample Results 5
MW-1 L1530810-01 5
MW-2 L1530810-02 7
MW-3 L1530810-03 9
MW-4 L1530810-04 11
MW-5 L1530810-05 13
MW-6 L1530810-06 15
Qc: Quality Control Summary 17
Metals (ICP) by Method 6010D 17
Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 19
Volatile Organic Compounds (GC/MS) by Method 6200B-2011 23
EDB / DBCP by Method 504.1 24
Gl: Glossary of Terms 25
Al: Accreditations & Locations 26
Sc: Sample Chain of Custody 27
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
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ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
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SAMPLE SUMMARY
Collected by Collected date/time Received date/time
MW-1 L1530810-01 GW Aric Clark 08/29/22 14:12 08/30/22 09:30
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Metals (ICP) by Method 6010D WG1920775 1 09/05/22 10:42 09/06/22 20:02 ZSA Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 WG1922396 50 09/09/22 09:55 09/09/22 09:55 JAH Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG1923938 50 09/12/22 17:08 09/12/22 17:08 JHH Mt. Juliet, TN
EDB / DBCP by Method 504.1 WG1919783 1.01 09/01/22 10:56 09/02/22 00:47 AO Mt. Juliet, TN
Collected by Collected date/time Received date/time
MW-2 L1530810-02 GW Aric Clark 08/29/22 13:48 08/30/22 09:30
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Metals (ICP) by Method 6010D WG1920777 10 09/05/22 11:27 09/08/22 12:45 CCE Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 WG1922396 1 09/09/22 05:47 09/09/22 05:47 JAH Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG1923938 1 09/12/22 13:47 09/12/22 13:47 JHH Mt. Juliet, TN
EDB / DBCP by Method 504.1 WG1919783 1 09/01/22 10:56 09/02/22 00:59 AO Mt. Juliet, TN
Collected by Collected date/time Received date/time
MW-3 L1530810-03 GW Aric Clark 08/29/22 12:04 08/30/22 09:30
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Metals (ICP) by Method 6010D WG1920777 1 09/05/22 11:27 09/08/22 11:39 CCE Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 WG1922396 1 09/09/22 06:08 09/09/22 06:08 JAH Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG1923938 1 09/12/22 14:09 09/12/22 14:09 JHH Mt. Juliet, TN
EDB / DBCP by Method 504.1 WG1919783 1.02 09/01/22 10:56 09/02/22 01:11 AO Mt. Juliet, TN
Collected by Collected date/time Received date/time
MW-4 L1530810-04 GW Aric Clark 08/29/22 13:35 08/30/22 09:30
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Metals (ICP) by Method 6010D WG1920777 1 09/05/22 11:27 09/08/22 11:41 CCE Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 WG1922396 1 09/09/22 06:28 09/09/22 06:28 JAH Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG1923938 1 09/12/22 14:32 09/12/22 14:32 JHH Mt. Juliet, TN
EDB / DBCP by Method 504.1 WG1919783 1.03 09/01/22 10:56 09/02/22 01:23 AO Mt. Juliet, TN
Collected by Collected date/time Received date/time
MW-5 L1530810-05 GW Aric Clark 08/29/22 13:04 08/30/22 09:30
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Metals (ICP) by Method 6010D WG1920777 1 09/05/22 11:27 09/08/22 11:44 CCE Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 WG1922396 1 09/09/22 06:49 09/09/22 06:49 JAH Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG1923938 1 09/12/22 14:54 09/12/22 14:54 JHH Mt. Juliet, TN
EDB / DBCP by Method 504.1 WG1919783 1 09/01/22 10:56 09/02/22 01:34 AO Mt. Juliet, TN
Collected by Collected date/time Received date/time
MW-6 L1530810-06 GW Aric Clark 08/29/22 12:20 08/30/22 09:30
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Metals (ICP) by Method 6010D WG1920777 1 09/05/22 11:27 09/08/22 11:47 CCE Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 WG1922396 1 09/09/22 07:09 09/09/22 07:09 JAH Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG1923938 1 09/12/22 15:16 09/12/22 15:16 JHH Mt. Juliet, TN
EDB / DBCP by Method 504.1 WG1919783 1.02 09/01/22 10:56 09/02/22 01:46 AO Mt. Juliet, TN
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
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ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
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CASE NARRATIVE
All sample aliquots were received at the correct temperature, in the proper containers, with the
appropriate preservatives, and within method specified holding times, unless qualified or notated within
the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples
have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control
are within established criteria except where addressed in this case narrative, a non-conformance form
or properly qualified within the sample results. By my digital signature below, I affirm to the best of my
knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the
quality of the data have been identified by the laboratory, and no information or data have been
knowingly withheld that would affect the quality of the data.
[Preliminary Report]
Heather J Wagner
Project Manager
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
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Heather J Wagner
Project Manager
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
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SAMPLE RESULTS - 01
L1530810
MW-1
Collected date/time: 08/29/22 14:12
Additional Information - Results for field analyses are not accredited to ISO 17025
Result Units
Analyte
pH (On Site)6.51 su
Temperature (on-site)26.5 Deg C
Metals (ICP) by Method 6010D
Result Qualifier RDL Dilution Analysis Batch
Analyte ug/l ug/l date / time
Lead 34.5 6.00 1 09/06/2022 20:02 WG1920775
Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011
Result Qualifier RDL Dilution Analysis Batch
Analyte ug/l ug/l date / time
Acetone ND 2500 50 09/09/2022 09:55 WG1922396
Acrolein ND 2500 50 09/12/2022 17:08 WG1923938
Acrylonitrile ND 500 50 09/09/2022 09:55 WG1922396
Benzene 1950 50.0 50 09/09/2022 09:55 WG1922396
Bromobenzene ND 50.0 50 09/09/2022 09:55 WG1922396
Bromodichloromethane ND 50.0 50 09/09/2022 09:55 WG1922396
Bromoform ND 50.0 50 09/09/2022 09:55 WG1922396
Bromomethane ND 250 50 09/09/2022 09:55 WG1922396
n-Butylbenzene ND 50.0 50 09/09/2022 09:55 WG1922396
sec-Butylbenzene ND 50.0 50 09/09/2022 09:55 WG1922396
tert-Butylbenzene ND 50.0 50 09/09/2022 09:55 WG1922396
Carbon tetrachloride ND 50.0 50 09/09/2022 09:55 WG1922396
Chlorobenzene ND 50.0 50 09/09/2022 09:55 WG1922396
Chlorodibromomethane ND 50.0 50 09/09/2022 09:55 WG1922396
Chloroethane ND 250 50 09/09/2022 09:55 WG1922396
Chloroform ND 250 50 09/09/2022 09:55 WG1922396
Chloromethane ND 125 50 09/09/2022 09:55 WG1922396
2-Chlorotoluene ND 50.0 50 09/09/2022 09:55 WG1922396
4-Chlorotoluene ND 50.0 50 09/09/2022 09:55 WG1922396
1,2-Dibromo-3-Chloropropane ND 250 50 09/09/2022 09:55 WG1922396
1,2-Dibromoethane ND 50.0 50 09/09/2022 09:55 WG1922396
Dibromomethane ND 50.0 50 09/09/2022 09:55 WG1922396
1,2-Dichlorobenzene ND 50.0 50 09/09/2022 09:55 WG1922396
1,3-Dichlorobenzene ND 50.0 50 09/09/2022 09:55 WG1922396
1,4-Dichlorobenzene ND 50.0 50 09/09/2022 09:55 WG1922396
Dichlorodifluoromethane ND 250 50 09/09/2022 09:55 WG1922396
1,1-Dichloroethane ND 50.0 50 09/09/2022 09:55 WG1922396
1,2-Dichloroethane ND 50.0 50 09/09/2022 09:55 WG1922396
1,1-Dichloroethene ND 50.0 50 09/09/2022 09:55 WG1922396
cis-1,2-Dichloroethene ND J4 50.0 50 09/09/2022 09:55 WG1922396
trans-1,2-Dichloroethene ND 50.0 50 09/09/2022 09:55 WG1922396
1,2-Dichloropropane ND 50.0 50 09/09/2022 09:55 WG1922396
1,1-Dichloropropene ND 50.0 50 09/09/2022 09:55 WG1922396
1,3-Dichloropropane ND 50.0 50 09/09/2022 09:55 WG1922396
2,2-Dichloropropane ND 50.0 50 09/09/2022 09:55 WG1922396
Di-isopropyl ether ND 50.0 50 09/09/2022 09:55 WG1922396
Ethylbenzene 2810 50.0 50 09/09/2022 09:55 WG1922396
Hexachloro-1,3-butadiene ND 50.0 50 09/09/2022 09:55 WG1922396
Isopropylbenzene 159 50.0 50 09/09/2022 09:55 WG1922396
p-Isopropyltoluene ND 50.0 50 09/09/2022 09:55 WG1922396
2-Butanone (MEK)ND 500 50 09/09/2022 09:55 WG1922396
Methylene Chloride ND 250 50 09/09/2022 09:55 WG1922396
4-Methyl-2-pentanone (MIBK) ND 500 50 09/09/2022 09:55 WG1922396
Methyl tert-butyl ether ND 50.0 50 09/09/2022 09:55 WG1922396
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
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SAMPLE RESULTS - 01
L1530810
MW-1
Collected date/time: 08/29/22 14:12
Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011
Result Qualifier RDL Dilution Analysis Batch
Analyte ug/l ug/l date / time
Naphthalene 1230 250 50 09/12/2022 17:08 WG1923938
n-Propylbenzene 607 50.0 50 09/09/2022 09:55 WG1922396
Styrene ND 50.0 50 09/09/2022 09:55 WG1922396
1,1,1,2-Tetrachloroethane ND 50.0 50 09/09/2022 09:55 WG1922396
1,1,2,2-Tetrachloroethane ND 50.0 50 09/09/2022 09:55 WG1922396
Tetrachloroethene ND 50.0 50 09/12/2022 17:08 WG1923938
Toluene ND 50.0 50 09/09/2022 09:55 WG1922396
1,2,3-Trichlorobenzene ND 50.0 50 09/09/2022 09:55 WG1922396
1,2,4-Trichlorobenzene ND 50.0 50 09/09/2022 09:55 WG1922396
1,1,1-Trichloroethane ND 50.0 50 09/09/2022 09:55 WG1922396
1,1,2-Trichloroethane ND 50.0 50 09/09/2022 09:55 WG1922396
Trichloroethene ND 50.0 50 09/09/2022 09:55 WG1922396
Trichlorofluoromethane ND J4 250 50 09/09/2022 09:55 WG1922396
1,2,3-Trichloropropane ND 125 50 09/09/2022 09:55 WG1922396
1,2,4-Trimethylbenzene 303 50.0 50 09/09/2022 09:55 WG1922396
1,3,5-Trimethylbenzene ND 50.0 50 09/09/2022 09:55 WG1922396
Vinyl chloride ND 50.0 50 09/09/2022 09:55 WG1922396
o-Xylene ND 50.0 50 09/09/2022 09:55 WG1922396
m&p-Xylenes ND 100 50 09/09/2022 09:55 WG1922396
Ethanol ND 5000 50 09/12/2022 17:08 WG1923938
Ethyl tert-butyl ether ND 50.0 50 09/09/2022 09:55 WG1922396
t-Amyl Alcohol ND 2500 50 09/09/2022 09:55 WG1922396
tert-Butyl alcohol ND 250 50 09/09/2022 09:55 WG1922396
tert-Amyl Methyl Ether ND 50.0 50 09/09/2022 09:55 WG1922396
(S) Toluene-d8 98.7 80.0-120 09/09/2022 09:55 WG1922396
(S) Toluene-d8 119 80.0-120 09/12/2022 17:08 WG1923938
(S) 4-Bromofluorobenzene 97.0 77.0-126 09/09/2022 09:55 WG1922396
(S) 4-Bromofluorobenzene 108 77.0-126 09/12/2022 17:08 WG1923938
(S) 1,2-Dichloroethane-d4 105 70.0-130 09/09/2022 09:55 WG1922396
(S) 1,2-Dichloroethane-d4 105 70.0-130 09/12/2022 17:08 WG1923938
EDB / DBCP by Method 504.1
Result Qualifier RDL Dilution Analysis Batch
Analyte ug/l ug/l date / time
Ethylene Dibromide ND J4 0.0202 1.01 09/02/2022 00:47 WG1919783
1,2-Dibromo-3-Chloropropane ND 0.0202 1.01 09/02/2022 00:47 WG1919783
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
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ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
EHC, Inc.42045-05 L1530810 09/14/22 09:32 6 of 29
SAMPLE RESULTS - 02
L1530810
MW-2
Collected date/time: 08/29/22 13:48
Additional Information - Results for field analyses are not accredited to ISO 17025
Result Units
Analyte
pH (On Site)4.58 su
Temperature (on-site)27.3 Deg C
Metals (ICP) by Method 6010D
Result Qualifier RDL Dilution Analysis Batch
Analyte ug/l ug/l date / time
Lead 127 60.0 10 09/08/2022 12:45 WG1920777
Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011
Result Qualifier RDL Dilution Analysis Batch
Analyte ug/l ug/l date / time
Acetone ND 50.0 1 09/09/2022 05:47 WG1922396
Acrolein ND 50.0 1 09/12/2022 13:47 WG1923938
Acrylonitrile ND 10.0 1 09/09/2022 05:47 WG1922396
Benzene 6.67 1.00 1 09/09/2022 05:47 WG1922396
Bromobenzene ND 1.00 1 09/09/2022 05:47 WG1922396
Bromodichloromethane ND 1.00 1 09/09/2022 05:47 WG1922396
Bromoform ND 1.00 1 09/09/2022 05:47 WG1922396
Bromomethane ND 5.00 1 09/09/2022 05:47 WG1922396
n-Butylbenzene ND 1.00 1 09/09/2022 05:47 WG1922396
sec-Butylbenzene ND 1.00 1 09/09/2022 05:47 WG1922396
tert-Butylbenzene ND 1.00 1 09/09/2022 05:47 WG1922396
Carbon tetrachloride ND 1.00 1 09/09/2022 05:47 WG1922396
Chlorobenzene ND 1.00 1 09/09/2022 05:47 WG1922396
Chlorodibromomethane ND 1.00 1 09/09/2022 05:47 WG1922396
Chloroethane ND 5.00 1 09/09/2022 05:47 WG1922396
Chloroform ND 5.00 1 09/09/2022 05:47 WG1922396
Chloromethane ND 2.50 1 09/09/2022 05:47 WG1922396
2-Chlorotoluene ND 1.00 1 09/09/2022 05:47 WG1922396
4-Chlorotoluene ND 1.00 1 09/09/2022 05:47 WG1922396
1,2-Dibromo-3-Chloropropane ND 5.00 1 09/09/2022 05:47 WG1922396
1,2-Dibromoethane ND 1.00 1 09/09/2022 05:47 WG1922396
Dibromomethane ND 1.00 1 09/09/2022 05:47 WG1922396
1,2-Dichlorobenzene ND 1.00 1 09/09/2022 05:47 WG1922396
1,3-Dichlorobenzene ND 1.00 1 09/09/2022 05:47 WG1922396
1,4-Dichlorobenzene ND 1.00 1 09/09/2022 05:47 WG1922396
Dichlorodifluoromethane ND 5.00 1 09/09/2022 05:47 WG1922396
1,1-Dichloroethane ND 1.00 1 09/09/2022 05:47 WG1922396
1,2-Dichloroethane ND 1.00 1 09/09/2022 05:47 WG1922396
1,1-Dichloroethene ND 1.00 1 09/09/2022 05:47 WG1922396
cis-1,2-Dichloroethene ND 1.00 1 09/12/2022 13:47 WG1923938
trans-1,2-Dichloroethene ND 1.00 1 09/09/2022 05:47 WG1922396
1,2-Dichloropropane ND 1.00 1 09/09/2022 05:47 WG1922396
1,1-Dichloropropene ND 1.00 1 09/09/2022 05:47 WG1922396
1,3-Dichloropropane ND 1.00 1 09/09/2022 05:47 WG1922396
2,2-Dichloropropane ND 1.00 1 09/09/2022 05:47 WG1922396
Di-isopropyl ether ND 1.00 1 09/09/2022 05:47 WG1922396
Ethylbenzene 1.34 1.00 1 09/09/2022 05:47 WG1922396
Hexachloro-1,3-butadiene ND 1.00 1 09/09/2022 05:47 WG1922396
Isopropylbenzene ND 1.00 1 09/09/2022 05:47 WG1922396
p-Isopropyltoluene ND 1.00 1 09/09/2022 05:47 WG1922396
2-Butanone (MEK)ND 10.0 1 09/09/2022 05:47 WG1922396
Methylene Chloride ND 5.00 1 09/09/2022 05:47 WG1922396
4-Methyl-2-pentanone (MIBK) ND 10.0 1 09/09/2022 05:47 WG1922396
Methyl tert-butyl ether ND 1.00 1 09/09/2022 05:47 WG1922396
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
EHC, Inc.42045-05 L1530810 09/13/22 19:05 7 of 29
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
EHC, Inc.42045-05 L1530810 09/14/22 09:32 7 of 29
SAMPLE RESULTS - 02
L1530810
MW-2
Collected date/time: 08/29/22 13:48
Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011
Result Qualifier RDL Dilution Analysis Batch
Analyte ug/l ug/l date / time
Naphthalene ND 5.00 1 09/12/2022 13:47 WG1923938
n-Propylbenzene ND 1.00 1 09/09/2022 05:47 WG1922396
Styrene ND 1.00 1 09/09/2022 05:47 WG1922396
1,1,1,2-Tetrachloroethane ND 1.00 1 09/09/2022 05:47 WG1922396
1,1,2,2-Tetrachloroethane ND 1.00 1 09/09/2022 05:47 WG1922396
Tetrachloroethene ND 1.00 1 09/12/2022 13:47 WG1923938
Toluene ND 1.00 1 09/09/2022 05:47 WG1922396
1,2,3-Trichlorobenzene ND 1.00 1 09/09/2022 05:47 WG1922396
1,2,4-Trichlorobenzene ND 1.00 1 09/09/2022 05:47 WG1922396
1,1,1-Trichloroethane ND 1.00 1 09/09/2022 05:47 WG1922396
1,1,2-Trichloroethane ND 1.00 1 09/09/2022 05:47 WG1922396
Trichloroethene ND 1.00 1 09/09/2022 05:47 WG1922396
Trichlorofluoromethane ND J4 5.00 1 09/09/2022 05:47 WG1922396
1,2,3-Trichloropropane ND 2.50 1 09/09/2022 05:47 WG1922396
1,2,4-Trimethylbenzene ND 1.00 1 09/09/2022 05:47 WG1922396
1,3,5-Trimethylbenzene ND 1.00 1 09/09/2022 05:47 WG1922396
Vinyl chloride ND 1.00 1 09/09/2022 05:47 WG1922396
o-Xylene ND 1.00 1 09/09/2022 05:47 WG1922396
m&p-Xylenes ND 2.00 1 09/09/2022 05:47 WG1922396
Ethanol ND 100 1 09/12/2022 13:47 WG1923938
Ethyl tert-butyl ether ND 1.00 1 09/09/2022 05:47 WG1922396
t-Amyl Alcohol 121 50.0 1 09/09/2022 05:47 WG1922396
tert-Butyl alcohol 17.1 5.00 1 09/09/2022 05:47 WG1922396
tert-Amyl Methyl Ether ND 1.00 1 09/09/2022 05:47 WG1922396
(S) Toluene-d8 103 80.0-120 09/09/2022 05:47 WG1922396
(S) Toluene-d8 119 80.0-120 09/12/2022 13:47 WG1923938
(S) 4-Bromofluorobenzene 102 77.0-126 09/09/2022 05:47 WG1922396
(S) 4-Bromofluorobenzene 109 77.0-126 09/12/2022 13:47 WG1923938
(S) 1,2-Dichloroethane-d4 105 70.0-130 09/09/2022 05:47 WG1922396
(S) 1,2-Dichloroethane-d4 103 70.0-130 09/12/2022 13:47 WG1923938
EDB / DBCP by Method 504.1
Result Qualifier RDL Dilution Analysis Batch
Analyte ug/l ug/l date / time
Ethylene Dibromide ND J4 0.0200 1 09/02/2022 00:59 WG1919783
1,2-Dibromo-3-Chloropropane ND 0.0200 1 09/02/2022 00:59 WG1919783
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
EHC, Inc.42045-05 L1530810 09/13/22 19:05 8 of 29
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
EHC, Inc.42045-05 L1530810 09/14/22 09:32 8 of 29
SAMPLE RESULTS - 03
L1530810
MW-3
Collected date/time: 08/29/22 12:04
Additional Information - Results for field analyses are not accredited to ISO 17025
Result Units
Analyte
pH (On Site)5.96 su
Temperature (on-site)26.3 Deg C
Metals (ICP) by Method 6010D
Result Qualifier RDL Dilution Analysis Batch
Analyte ug/l ug/l date / time
Lead 135 6.00 1 09/08/2022 11:39 WG1920777
Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011
Result Qualifier RDL Dilution Analysis Batch
Analyte ug/l ug/l date / time
Acetone ND 50.0 1 09/09/2022 06:08 WG1922396
Acrolein ND 50.0 1 09/12/2022 14:09 WG1923938
Acrylonitrile ND 10.0 1 09/09/2022 06:08 WG1922396
Benzene ND 1.00 1 09/09/2022 06:08 WG1922396
Bromobenzene ND 1.00 1 09/09/2022 06:08 WG1922396
Bromodichloromethane ND 1.00 1 09/09/2022 06:08 WG1922396
Bromoform ND 1.00 1 09/09/2022 06:08 WG1922396
Bromomethane ND 5.00 1 09/09/2022 06:08 WG1922396
n-Butylbenzene ND 1.00 1 09/09/2022 06:08 WG1922396
sec-Butylbenzene ND 1.00 1 09/09/2022 06:08 WG1922396
tert-Butylbenzene ND 1.00 1 09/09/2022 06:08 WG1922396
Carbon tetrachloride ND 1.00 1 09/09/2022 06:08 WG1922396
Chlorobenzene ND 1.00 1 09/09/2022 06:08 WG1922396
Chlorodibromomethane ND 1.00 1 09/09/2022 06:08 WG1922396
Chloroethane ND 5.00 1 09/09/2022 06:08 WG1922396
Chloroform ND 5.00 1 09/09/2022 06:08 WG1922396
Chloromethane ND 2.50 1 09/09/2022 06:08 WG1922396
2-Chlorotoluene ND 1.00 1 09/09/2022 06:08 WG1922396
4-Chlorotoluene ND 1.00 1 09/09/2022 06:08 WG1922396
1,2-Dibromo-3-Chloropropane ND 5.00 1 09/09/2022 06:08 WG1922396
1,2-Dibromoethane ND 1.00 1 09/09/2022 06:08 WG1922396
Dibromomethane ND 1.00 1 09/09/2022 06:08 WG1922396
1,2-Dichlorobenzene ND 1.00 1 09/09/2022 06:08 WG1922396
1,3-Dichlorobenzene ND 1.00 1 09/09/2022 06:08 WG1922396
1,4-Dichlorobenzene ND 1.00 1 09/09/2022 06:08 WG1922396
Dichlorodifluoromethane ND 5.00 1 09/09/2022 06:08 WG1922396
1,1-Dichloroethane ND 1.00 1 09/09/2022 06:08 WG1922396
1,2-Dichloroethane ND 1.00 1 09/09/2022 06:08 WG1922396
1,1-Dichloroethene ND 1.00 1 09/09/2022 06:08 WG1922396
cis-1,2-Dichloroethene ND 1.00 1 09/12/2022 14:09 WG1923938
trans-1,2-Dichloroethene ND 1.00 1 09/09/2022 06:08 WG1922396
1,2-Dichloropropane ND 1.00 1 09/09/2022 06:08 WG1922396
1,1-Dichloropropene ND 1.00 1 09/09/2022 06:08 WG1922396
1,3-Dichloropropane ND 1.00 1 09/09/2022 06:08 WG1922396
2,2-Dichloropropane ND 1.00 1 09/09/2022 06:08 WG1922396
Di-isopropyl ether ND 1.00 1 09/09/2022 06:08 WG1922396
Ethylbenzene ND 1.00 1 09/09/2022 06:08 WG1922396
Hexachloro-1,3-butadiene ND 1.00 1 09/09/2022 06:08 WG1922396
Isopropylbenzene ND 1.00 1 09/09/2022 06:08 WG1922396
p-Isopropyltoluene ND 1.00 1 09/09/2022 06:08 WG1922396
2-Butanone (MEK)ND 10.0 1 09/09/2022 06:08 WG1922396
Methylene Chloride ND 5.00 1 09/09/2022 06:08 WG1922396
4-Methyl-2-pentanone (MIBK) ND 10.0 1 09/09/2022 06:08 WG1922396
Methyl tert-butyl ether ND 1.00 1 09/09/2022 06:08 WG1922396
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
EHC, Inc.42045-05 L1530810 09/13/22 19:05 9 of 29
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
EHC, Inc.42045-05 L1530810 09/14/22 09:32 9 of 29
SAMPLE RESULTS - 03
L1530810
MW-3
Collected date/time: 08/29/22 12:04
Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011
Result Qualifier RDL Dilution Analysis Batch
Analyte ug/l ug/l date / time
Naphthalene ND 5.00 1 09/12/2022 14:09 WG1923938
n-Propylbenzene ND 1.00 1 09/09/2022 06:08 WG1922396
Styrene ND 1.00 1 09/09/2022 06:08 WG1922396
1,1,1,2-Tetrachloroethane ND 1.00 1 09/09/2022 06:08 WG1922396
1,1,2,2-Tetrachloroethane ND 1.00 1 09/09/2022 06:08 WG1922396
Tetrachloroethene ND 1.00 1 09/12/2022 14:09 WG1923938
Toluene ND 1.00 1 09/09/2022 06:08 WG1922396
1,2,3-Trichlorobenzene ND 1.00 1 09/09/2022 06:08 WG1922396
1,2,4-Trichlorobenzene ND 1.00 1 09/09/2022 06:08 WG1922396
1,1,1-Trichloroethane ND 1.00 1 09/09/2022 06:08 WG1922396
1,1,2-Trichloroethane ND 1.00 1 09/09/2022 06:08 WG1922396
Trichloroethene ND 1.00 1 09/09/2022 06:08 WG1922396
Trichlorofluoromethane ND J4 5.00 1 09/09/2022 06:08 WG1922396
1,2,3-Trichloropropane ND 2.50 1 09/09/2022 06:08 WG1922396
1,2,4-Trimethylbenzene ND 1.00 1 09/09/2022 06:08 WG1922396
1,3,5-Trimethylbenzene ND 1.00 1 09/09/2022 06:08 WG1922396
Vinyl chloride ND 1.00 1 09/09/2022 06:08 WG1922396
o-Xylene ND 1.00 1 09/09/2022 06:08 WG1922396
m&p-Xylenes ND 2.00 1 09/09/2022 06:08 WG1922396
Ethanol ND 100 1 09/12/2022 14:09 WG1923938
Ethyl tert-butyl ether ND 1.00 1 09/09/2022 06:08 WG1922396
t-Amyl Alcohol ND 50.0 1 09/09/2022 06:08 WG1922396
tert-Butyl alcohol ND 5.00 1 09/09/2022 06:08 WG1922396
tert-Amyl Methyl Ether ND 1.00 1 09/09/2022 06:08 WG1922396
(S) Toluene-d8 103 80.0-120 09/09/2022 06:08 WG1922396
(S) Toluene-d8 118 80.0-120 09/12/2022 14:09 WG1923938
(S) 4-Bromofluorobenzene 99.8 77.0-126 09/09/2022 06:08 WG1922396
(S) 4-Bromofluorobenzene 105 77.0-126 09/12/2022 14:09 WG1923938
(S) 1,2-Dichloroethane-d4 104 70.0-130 09/09/2022 06:08 WG1922396
(S) 1,2-Dichloroethane-d4 103 70.0-130 09/12/2022 14:09 WG1923938
EDB / DBCP by Method 504.1
Result Qualifier RDL Dilution Analysis Batch
Analyte ug/l ug/l date / time
Ethylene Dibromide ND J4 0.0204 1.02 09/02/2022 01:11 WG1919783
1,2-Dibromo-3-Chloropropane ND 0.0204 1.02 09/02/2022 01:11 WG1919783
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
EHC, Inc.42045-05 L1530810 09/13/22 19:05 10 of 29
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
EHC, Inc.42045-05 L1530810 09/14/22 09:32 10 of 29
SAMPLE RESULTS - 04
L1530810
MW-4
Collected date/time: 08/29/22 13:35
Additional Information - Results for field analyses are not accredited to ISO 17025
Result Units
Analyte
pH (On Site)6.12 su
Temperature (on-site)26.8 Deg C
Metals (ICP) by Method 6010D
Result Qualifier RDL Dilution Analysis Batch
Analyte ug/l ug/l date / time
Lead 26.4 6.00 1 09/08/2022 11:41 WG1920777
Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011
Result Qualifier RDL Dilution Analysis Batch
Analyte ug/l ug/l date / time
Acetone ND 50.0 1 09/09/2022 06:28 WG1922396
Acrolein ND 50.0 1 09/12/2022 14:32 WG1923938
Acrylonitrile ND 10.0 1 09/09/2022 06:28 WG1922396
Benzene ND 1.00 1 09/09/2022 06:28 WG1922396
Bromobenzene ND 1.00 1 09/09/2022 06:28 WG1922396
Bromodichloromethane ND 1.00 1 09/09/2022 06:28 WG1922396
Bromoform ND 1.00 1 09/09/2022 06:28 WG1922396
Bromomethane ND 5.00 1 09/09/2022 06:28 WG1922396
n-Butylbenzene ND 1.00 1 09/09/2022 06:28 WG1922396
sec-Butylbenzene 2.30 1.00 1 09/09/2022 06:28 WG1922396
tert-Butylbenzene ND 1.00 1 09/09/2022 06:28 WG1922396
Carbon tetrachloride ND 1.00 1 09/09/2022 06:28 WG1922396
Chlorobenzene ND 1.00 1 09/09/2022 06:28 WG1922396
Chlorodibromomethane ND 1.00 1 09/09/2022 06:28 WG1922396
Chloroethane ND 5.00 1 09/09/2022 06:28 WG1922396
Chloroform ND 5.00 1 09/09/2022 06:28 WG1922396
Chloromethane ND 2.50 1 09/09/2022 06:28 WG1922396
2-Chlorotoluene ND 1.00 1 09/09/2022 06:28 WG1922396
4-Chlorotoluene ND 1.00 1 09/09/2022 06:28 WG1922396
1,2-Dibromo-3-Chloropropane ND 5.00 1 09/09/2022 06:28 WG1922396
1,2-Dibromoethane ND 1.00 1 09/09/2022 06:28 WG1922396
Dibromomethane ND 1.00 1 09/09/2022 06:28 WG1922396
1,2-Dichlorobenzene ND 1.00 1 09/09/2022 06:28 WG1922396
1,3-Dichlorobenzene ND 1.00 1 09/09/2022 06:28 WG1922396
1,4-Dichlorobenzene ND 1.00 1 09/09/2022 06:28 WG1922396
Dichlorodifluoromethane ND 5.00 1 09/09/2022 06:28 WG1922396
1,1-Dichloroethane ND 1.00 1 09/09/2022 06:28 WG1922396
1,2-Dichloroethane ND 1.00 1 09/09/2022 06:28 WG1922396
1,1-Dichloroethene ND 1.00 1 09/09/2022 06:28 WG1922396
cis-1,2-Dichloroethene ND 1.00 1 09/12/2022 14:32 WG1923938
trans-1,2-Dichloroethene ND 1.00 1 09/09/2022 06:28 WG1922396
1,2-Dichloropropane ND 1.00 1 09/09/2022 06:28 WG1922396
1,1-Dichloropropene ND 1.00 1 09/09/2022 06:28 WG1922396
1,3-Dichloropropane ND 1.00 1 09/09/2022 06:28 WG1922396
2,2-Dichloropropane ND 1.00 1 09/09/2022 06:28 WG1922396
Di-isopropyl ether ND 1.00 1 09/09/2022 06:28 WG1922396
Ethylbenzene 20.6 1.00 1 09/09/2022 06:28 WG1922396
Hexachloro-1,3-butadiene ND 1.00 1 09/09/2022 06:28 WG1922396
Isopropylbenzene 7.28 1.00 1 09/09/2022 06:28 WG1922396
p-Isopropyltoluene ND 1.00 1 09/09/2022 06:28 WG1922396
2-Butanone (MEK)ND 10.0 1 09/09/2022 06:28 WG1922396
Methylene Chloride ND 5.00 1 09/09/2022 06:28 WG1922396
4-Methyl-2-pentanone (MIBK) ND 10.0 1 09/09/2022 06:28 WG1922396
Methyl tert-butyl ether ND 1.00 1 09/09/2022 06:28 WG1922396
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
EHC, Inc.42045-05 L1530810 09/13/22 19:05 11 of 29
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
EHC, Inc.42045-05 L1530810 09/14/22 09:32 11 of 29
SAMPLE RESULTS - 04
L1530810
MW-4
Collected date/time: 08/29/22 13:35
Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011
Result Qualifier RDL Dilution Analysis Batch
Analyte ug/l ug/l date / time
Naphthalene 19.8 5.00 1 09/12/2022 14:32 WG1923938
n-Propylbenzene 21.1 1.00 1 09/09/2022 06:28 WG1922396
Styrene ND 1.00 1 09/09/2022 06:28 WG1922396
1,1,1,2-Tetrachloroethane ND 1.00 1 09/09/2022 06:28 WG1922396
1,1,2,2-Tetrachloroethane ND 1.00 1 09/09/2022 06:28 WG1922396
Tetrachloroethene 4.47 1.00 1 09/12/2022 14:32 WG1923938
Toluene ND 1.00 1 09/09/2022 06:28 WG1922396
1,2,3-Trichlorobenzene ND 1.00 1 09/09/2022 06:28 WG1922396
1,2,4-Trichlorobenzene ND 1.00 1 09/09/2022 06:28 WG1922396
1,1,1-Trichloroethane ND 1.00 1 09/09/2022 06:28 WG1922396
1,1,2-Trichloroethane ND 1.00 1 09/09/2022 06:28 WG1922396
Trichloroethene ND 1.00 1 09/09/2022 06:28 WG1922396
Trichlorofluoromethane ND J4 5.00 1 09/09/2022 06:28 WG1922396
1,2,3-Trichloropropane ND 2.50 1 09/09/2022 06:28 WG1922396
1,2,4-Trimethylbenzene ND 1.00 1 09/09/2022 06:28 WG1922396
1,3,5-Trimethylbenzene ND 1.00 1 09/09/2022 06:28 WG1922396
Vinyl chloride ND 1.00 1 09/09/2022 06:28 WG1922396
o-Xylene ND 1.00 1 09/09/2022 06:28 WG1922396
m&p-Xylenes ND 2.00 1 09/09/2022 06:28 WG1922396
Ethanol ND 100 1 09/12/2022 14:32 WG1923938
Ethyl tert-butyl ether ND 1.00 1 09/09/2022 06:28 WG1922396
t-Amyl Alcohol ND 50.0 1 09/09/2022 06:28 WG1922396
tert-Butyl alcohol ND 5.00 1 09/09/2022 06:28 WG1922396
tert-Amyl Methyl Ether ND 1.00 1 09/09/2022 06:28 WG1922396
(S) Toluene-d8 100 80.0-120 09/09/2022 06:28 WG1922396
(S) Toluene-d8 115 80.0-120 09/12/2022 14:32 WG1923938
(S) 4-Bromofluorobenzene 104 77.0-126 09/09/2022 06:28 WG1922396
(S) 4-Bromofluorobenzene 104 77.0-126 09/12/2022 14:32 WG1923938
(S) 1,2-Dichloroethane-d4 104 70.0-130 09/09/2022 06:28 WG1922396
(S) 1,2-Dichloroethane-d4 101 70.0-130 09/12/2022 14:32 WG1923938
EDB / DBCP by Method 504.1
Result Qualifier RDL Dilution Analysis Batch
Analyte ug/l ug/l date / time
Ethylene Dibromide ND J4 0.0206 1.03 09/02/2022 01:23 WG1919783
1,2-Dibromo-3-Chloropropane ND 0.0206 1.03 09/02/2022 01:23 WG1919783
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
EHC, Inc.42045-05 L1530810 09/13/22 19:05 12 of 29
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
EHC, Inc.42045-05 L1530810 09/14/22 09:32 12 of 29
SAMPLE RESULTS - 05
L1530810
MW-5
Collected date/time: 08/29/22 13:04
Additional Information - Results for field analyses are not accredited to ISO 17025
Result Units
Analyte
pH (On Site)6.29 su
Temperature (on-site)26.4 Deg C
Metals (ICP) by Method 6010D
Result Qualifier RDL Dilution Analysis Batch
Analyte ug/l ug/l date / time
Lead 83.3 6.00 1 09/08/2022 11:44 WG1920777
Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011
Result Qualifier RDL Dilution Analysis Batch
Analyte ug/l ug/l date / time
Acetone ND 50.0 1 09/09/2022 06:49 WG1922396
Acrolein ND 50.0 1 09/12/2022 14:54 WG1923938
Acrylonitrile ND 10.0 1 09/09/2022 06:49 WG1922396
Benzene ND 1.00 1 09/09/2022 06:49 WG1922396
Bromobenzene ND 1.00 1 09/09/2022 06:49 WG1922396
Bromodichloromethane ND 1.00 1 09/09/2022 06:49 WG1922396
Bromoform ND 1.00 1 09/09/2022 06:49 WG1922396
Bromomethane ND 5.00 1 09/09/2022 06:49 WG1922396
n-Butylbenzene ND 1.00 1 09/09/2022 06:49 WG1922396
sec-Butylbenzene ND 1.00 1 09/09/2022 06:49 WG1922396
tert-Butylbenzene ND 1.00 1 09/09/2022 06:49 WG1922396
Carbon tetrachloride ND 1.00 1 09/09/2022 06:49 WG1922396
Chlorobenzene ND 1.00 1 09/09/2022 06:49 WG1922396
Chlorodibromomethane ND 1.00 1 09/09/2022 06:49 WG1922396
Chloroethane ND 5.00 1 09/09/2022 06:49 WG1922396
Chloroform ND 5.00 1 09/09/2022 06:49 WG1922396
Chloromethane ND 2.50 1 09/09/2022 06:49 WG1922396
2-Chlorotoluene ND 1.00 1 09/09/2022 06:49 WG1922396
4-Chlorotoluene ND 1.00 1 09/09/2022 06:49 WG1922396
1,2-Dibromo-3-Chloropropane ND 5.00 1 09/09/2022 06:49 WG1922396
1,2-Dibromoethane ND 1.00 1 09/09/2022 06:49 WG1922396
Dibromomethane ND 1.00 1 09/09/2022 06:49 WG1922396
1,2-Dichlorobenzene ND 1.00 1 09/09/2022 06:49 WG1922396
1,3-Dichlorobenzene ND 1.00 1 09/09/2022 06:49 WG1922396
1,4-Dichlorobenzene ND 1.00 1 09/09/2022 06:49 WG1922396
Dichlorodifluoromethane ND 5.00 1 09/09/2022 06:49 WG1922396
1,1-Dichloroethane ND 1.00 1 09/09/2022 06:49 WG1922396
1,2-Dichloroethane ND 1.00 1 09/09/2022 06:49 WG1922396
1,1-Dichloroethene ND 1.00 1 09/09/2022 06:49 WG1922396
cis-1,2-Dichloroethene ND 1.00 1 09/12/2022 14:54 WG1923938
trans-1,2-Dichloroethene ND 1.00 1 09/09/2022 06:49 WG1922396
1,2-Dichloropropane ND 1.00 1 09/09/2022 06:49 WG1922396
1,1-Dichloropropene ND 1.00 1 09/09/2022 06:49 WG1922396
1,3-Dichloropropane ND 1.00 1 09/09/2022 06:49 WG1922396
2,2-Dichloropropane ND 1.00 1 09/09/2022 06:49 WG1922396
Di-isopropyl ether ND 1.00 1 09/09/2022 06:49 WG1922396
Ethylbenzene ND 1.00 1 09/09/2022 06:49 WG1922396
Hexachloro-1,3-butadiene ND 1.00 1 09/09/2022 06:49 WG1922396
Isopropylbenzene ND 1.00 1 09/09/2022 06:49 WG1922396
p-Isopropyltoluene ND 1.00 1 09/09/2022 06:49 WG1922396
2-Butanone (MEK)ND 10.0 1 09/09/2022 06:49 WG1922396
Methylene Chloride ND 5.00 1 09/09/2022 06:49 WG1922396
4-Methyl-2-pentanone (MIBK) ND 10.0 1 09/09/2022 06:49 WG1922396
Methyl tert-butyl ether ND 1.00 1 09/09/2022 06:49 WG1922396
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
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SAMPLE RESULTS - 05
L1530810
MW-5
Collected date/time: 08/29/22 13:04
Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011
Result Qualifier RDL Dilution Analysis Batch
Analyte ug/l ug/l date / time
Naphthalene ND 5.00 1 09/12/2022 14:54 WG1923938
n-Propylbenzene ND 1.00 1 09/09/2022 06:49 WG1922396
Styrene ND 1.00 1 09/09/2022 06:49 WG1922396
1,1,1,2-Tetrachloroethane ND 1.00 1 09/09/2022 06:49 WG1922396
1,1,2,2-Tetrachloroethane ND 1.00 1 09/09/2022 06:49 WG1922396
Tetrachloroethene ND 1.00 1 09/12/2022 14:54 WG1923938
Toluene ND 1.00 1 09/09/2022 06:49 WG1922396
1,2,3-Trichlorobenzene ND 1.00 1 09/09/2022 06:49 WG1922396
1,2,4-Trichlorobenzene ND 1.00 1 09/09/2022 06:49 WG1922396
1,1,1-Trichloroethane ND 1.00 1 09/09/2022 06:49 WG1922396
1,1,2-Trichloroethane ND 1.00 1 09/09/2022 06:49 WG1922396
Trichloroethene ND 1.00 1 09/09/2022 06:49 WG1922396
Trichlorofluoromethane ND J4 5.00 1 09/09/2022 06:49 WG1922396
1,2,3-Trichloropropane ND 2.50 1 09/09/2022 06:49 WG1922396
1,2,4-Trimethylbenzene ND 1.00 1 09/09/2022 06:49 WG1922396
1,3,5-Trimethylbenzene ND 1.00 1 09/09/2022 06:49 WG1922396
Vinyl chloride ND 1.00 1 09/09/2022 06:49 WG1922396
o-Xylene ND 1.00 1 09/09/2022 06:49 WG1922396
m&p-Xylenes ND 2.00 1 09/09/2022 06:49 WG1922396
Ethanol ND 100 1 09/12/2022 14:54 WG1923938
Ethyl tert-butyl ether ND 1.00 1 09/09/2022 06:49 WG1922396
t-Amyl Alcohol ND 50.0 1 09/09/2022 06:49 WG1922396
tert-Butyl alcohol ND 5.00 1 09/09/2022 06:49 WG1922396
tert-Amyl Methyl Ether ND 1.00 1 09/09/2022 06:49 WG1922396
(S) Toluene-d8 103 80.0-120 09/09/2022 06:49 WG1922396
(S) Toluene-d8 121 J1 80.0-120 09/12/2022 14:54 WG1923938
(S) 4-Bromofluorobenzene 101 77.0-126 09/09/2022 06:49 WG1922396
(S) 4-Bromofluorobenzene 112 77.0-126 09/12/2022 14:54 WG1923938
(S) 1,2-Dichloroethane-d4 104 70.0-130 09/09/2022 06:49 WG1922396
(S) 1,2-Dichloroethane-d4 103 70.0-130 09/12/2022 14:54 WG1923938
EDB / DBCP by Method 504.1
Result Qualifier RDL Dilution Analysis Batch
Analyte ug/l ug/l date / time
Ethylene Dibromide ND J4 0.0200 1 09/02/2022 01:34 WG1919783
1,2-Dibromo-3-Chloropropane ND 0.0200 1 09/02/2022 01:34 WG1919783
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
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ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
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SAMPLE RESULTS - 06
L1530810
MW-6
Collected date/time: 08/29/22 12:20
Additional Information - Results for field analyses are not accredited to ISO 17025
Result Units
Analyte
pH (On Site)7.39 su
Temperature (on-site)24.1 Deg C
Metals (ICP) by Method 6010D
Result Qualifier RDL Dilution Analysis Batch
Analyte ug/l ug/l date / time
Lead ND 6.00 1 09/08/2022 11:47 WG1920777
Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011
Result Qualifier RDL Dilution Analysis Batch
Analyte ug/l ug/l date / time
Acetone ND 50.0 1 09/09/2022 07:09 WG1922396
Acrolein ND 50.0 1 09/12/2022 15:16 WG1923938
Acrylonitrile ND 10.0 1 09/09/2022 07:09 WG1922396
Benzene ND 1.00 1 09/09/2022 07:09 WG1922396
Bromobenzene ND 1.00 1 09/09/2022 07:09 WG1922396
Bromodichloromethane ND 1.00 1 09/09/2022 07:09 WG1922396
Bromoform ND 1.00 1 09/09/2022 07:09 WG1922396
Bromomethane ND 5.00 1 09/09/2022 07:09 WG1922396
n-Butylbenzene ND 1.00 1 09/09/2022 07:09 WG1922396
sec-Butylbenzene ND 1.00 1 09/09/2022 07:09 WG1922396
tert-Butylbenzene ND 1.00 1 09/09/2022 07:09 WG1922396
Carbon tetrachloride ND 1.00 1 09/09/2022 07:09 WG1922396
Chlorobenzene ND 1.00 1 09/09/2022 07:09 WG1922396
Chlorodibromomethane ND 1.00 1 09/09/2022 07:09 WG1922396
Chloroethane ND 5.00 1 09/09/2022 07:09 WG1922396
Chloroform ND 5.00 1 09/09/2022 07:09 WG1922396
Chloromethane ND 2.50 1 09/09/2022 07:09 WG1922396
2-Chlorotoluene ND 1.00 1 09/09/2022 07:09 WG1922396
4-Chlorotoluene ND 1.00 1 09/09/2022 07:09 WG1922396
1,2-Dibromo-3-Chloropropane ND 5.00 1 09/09/2022 07:09 WG1922396
1,2-Dibromoethane ND 1.00 1 09/09/2022 07:09 WG1922396
Dibromomethane ND 1.00 1 09/09/2022 07:09 WG1922396
1,2-Dichlorobenzene ND 1.00 1 09/09/2022 07:09 WG1922396
1,3-Dichlorobenzene ND 1.00 1 09/09/2022 07:09 WG1922396
1,4-Dichlorobenzene ND 1.00 1 09/09/2022 07:09 WG1922396
Dichlorodifluoromethane ND 5.00 1 09/09/2022 07:09 WG1922396
1,1-Dichloroethane ND 1.00 1 09/09/2022 07:09 WG1922396
1,2-Dichloroethane ND 1.00 1 09/09/2022 07:09 WG1922396
1,1-Dichloroethene ND 1.00 1 09/09/2022 07:09 WG1922396
cis-1,2-Dichloroethene ND 1.00 1 09/12/2022 15:16 WG1923938
trans-1,2-Dichloroethene ND 1.00 1 09/09/2022 07:09 WG1922396
1,2-Dichloropropane ND 1.00 1 09/09/2022 07:09 WG1922396
1,1-Dichloropropene ND 1.00 1 09/09/2022 07:09 WG1922396
1,3-Dichloropropane ND 1.00 1 09/09/2022 07:09 WG1922396
2,2-Dichloropropane ND 1.00 1 09/09/2022 07:09 WG1922396
Di-isopropyl ether ND 1.00 1 09/09/2022 07:09 WG1922396
Ethylbenzene ND 1.00 1 09/09/2022 07:09 WG1922396
Hexachloro-1,3-butadiene ND 1.00 1 09/09/2022 07:09 WG1922396
Isopropylbenzene ND 1.00 1 09/09/2022 07:09 WG1922396
p-Isopropyltoluene ND 1.00 1 09/09/2022 07:09 WG1922396
2-Butanone (MEK)ND 10.0 1 09/09/2022 07:09 WG1922396
Methylene Chloride ND 5.00 1 09/09/2022 07:09 WG1922396
4-Methyl-2-pentanone (MIBK) ND 10.0 1 09/09/2022 07:09 WG1922396
Methyl tert-butyl ether ND 1.00 1 09/09/2022 07:09 WG1922396
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
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ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
EHC, Inc.42045-05 L1530810 09/14/22 09:32 15 of 29
SAMPLE RESULTS - 06
L1530810
MW-6
Collected date/time: 08/29/22 12:20
Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011
Result Qualifier RDL Dilution Analysis Batch
Analyte ug/l ug/l date / time
Naphthalene ND 5.00 1 09/12/2022 15:16 WG1923938
n-Propylbenzene ND 1.00 1 09/09/2022 07:09 WG1922396
Styrene ND 1.00 1 09/09/2022 07:09 WG1922396
1,1,1,2-Tetrachloroethane ND 1.00 1 09/09/2022 07:09 WG1922396
1,1,2,2-Tetrachloroethane ND 1.00 1 09/09/2022 07:09 WG1922396
Tetrachloroethene ND 1.00 1 09/12/2022 15:16 WG1923938
Toluene ND 1.00 1 09/09/2022 07:09 WG1922396
1,2,3-Trichlorobenzene ND 1.00 1 09/09/2022 07:09 WG1922396
1,2,4-Trichlorobenzene ND 1.00 1 09/09/2022 07:09 WG1922396
1,1,1-Trichloroethane ND 1.00 1 09/09/2022 07:09 WG1922396
1,1,2-Trichloroethane ND 1.00 1 09/09/2022 07:09 WG1922396
Trichloroethene ND 1.00 1 09/09/2022 07:09 WG1922396
Trichlorofluoromethane ND J4 5.00 1 09/09/2022 07:09 WG1922396
1,2,3-Trichloropropane ND 2.50 1 09/09/2022 07:09 WG1922396
1,2,4-Trimethylbenzene ND 1.00 1 09/09/2022 07:09 WG1922396
1,3,5-Trimethylbenzene ND 1.00 1 09/09/2022 07:09 WG1922396
Vinyl chloride ND 1.00 1 09/09/2022 07:09 WG1922396
o-Xylene ND 1.00 1 09/09/2022 07:09 WG1922396
m&p-Xylenes ND 2.00 1 09/09/2022 07:09 WG1922396
Ethanol ND 100 1 09/12/2022 15:16 WG1923938
Ethyl tert-butyl ether ND 1.00 1 09/09/2022 07:09 WG1922396
t-Amyl Alcohol ND 50.0 1 09/09/2022 07:09 WG1922396
tert-Butyl alcohol ND 5.00 1 09/09/2022 07:09 WG1922396
tert-Amyl Methyl Ether ND 1.00 1 09/09/2022 07:09 WG1922396
(S) Toluene-d8 105 80.0-120 09/09/2022 07:09 WG1922396
(S) Toluene-d8 121 J1 80.0-120 09/12/2022 15:16 WG1923938
(S) 4-Bromofluorobenzene 102 77.0-126 09/09/2022 07:09 WG1922396
(S) 4-Bromofluorobenzene 109 77.0-126 09/12/2022 15:16 WG1923938
(S) 1,2-Dichloroethane-d4 106 70.0-130 09/09/2022 07:09 WG1922396
(S) 1,2-Dichloroethane-d4 106 70.0-130 09/12/2022 15:16 WG1923938
EDB / DBCP by Method 504.1
Result Qualifier RDL Dilution Analysis Batch
Analyte ug/l ug/l date / time
Ethylene Dibromide ND J4 0.0204 1.02 09/02/2022 01:46 WG1919783
1,2-Dibromo-3-Chloropropane ND 0.0204 1.02 09/02/2022 01:46 WG1919783
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
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ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
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QUALITY CONTROL SUMMARYWG1920775
Metals (ICP) by Method 6010D L1530810-01
Method Blank (MB)
(MB) R3834260-1 09/06/22 18:47
MB Result MB Qualifier MB MDL MB RDL
Analyte ug/l ug/l ug/l
Lead U 2.99 6.00
Laboratory Control Sample (LCS)
(LCS) R3834260-2 09/06/22 18:49
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier
Analyte ug/l ug/l %%
Lead 1000 942 94.2 80.0-120
L1530632-16 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD)
(OS) L1530632-16 09/06/22 18:52 • (MS) R3834260-4 09/06/22 18:57 • (MSD) R3834260-5 09/06/22 19:00
Spike Amount Original Result MS Result MSD Result MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits
Analyte ug/l ug/l ug/l ug/l %%%%%
Lead 1000 ND 930 943 93.0 94.3 1 75.0-125 1.36 20
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
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ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
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QUALITY CONTROL SUMMARYWG1920777
Metals (ICP) by Method 6010D L1530810-02,03,04,05,06
Method Blank (MB)
(MB) R3835009-1 09/08/22 10:31
MB Result MB Qualifier MB MDL MB RDL
Analyte ug/l ug/l ug/l
Lead U 2.99 6.00
Laboratory Control Sample (LCS)
(LCS) R3835009-2 09/08/22 10:33
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier
Analyte ug/l ug/l %%
Lead 1000 966 96.6 80.0-120
L1530260-05 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD)
(OS) L1530260-05 09/08/22 10:36 • (MS) R3835009-4 09/08/22 10:42 • (MSD) R3835009-5 09/08/22 10:44
Spike Amount Original Result MS Result MSD Result MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits
Analyte ug/l ug/l ug/l ug/l %%%%%
Lead 1000 ND 976 969 97.6 96.9 1 75.0-125 0.648 20
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
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ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
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QUALITY CONTROL SUMMARYWG1922396
Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 L1530810-01,02,03,04,05,06
Method Blank (MB)
(MB) R3835628-4 09/09/22 01:16
MB Result MB Qualifier MB MDL MB RDL
Analyte ug/l ug/l ug/l
Acetone U 11.3 50.0
Acrylonitrile U 0.671 10.0
Benzene U 0.0941 1.00
Bromobenzene U 0.118 1.00
Bromodichloromethane U 0.136 1.00
Bromoform U 0.129 1.00
Bromomethane U 0.605 5.00
n-Butylbenzene U 0.157 1.00
sec-Butylbenzene U 0.125 1.00
tert-Butylbenzene U 0.127 1.00
Carbon tetrachloride U 0.128 1.00
Chlorobenzene U 0.116 1.00
Chlorodibromomethane U 0.140 1.00
Chloroethane U 0.192 5.00
Chloroform U 0.111 5.00
Chloromethane U 0.960 2.50
2-Chlorotoluene U 0.106 1.00
4-Chlorotoluene U 0.114 1.00
1,2-Dibromo-3-Chloropropane U 0.276 5.00
1,2-Dibromoethane U 0.126 1.00
Dibromomethane U 0.122 1.00
1,2-Dichlorobenzene U 0.107 1.00
1,3-Dichlorobenzene U 0.110 1.00
1,4-Dichlorobenzene U 0.120 1.00
Dichlorodifluoromethane U 0.374 5.00
1,1-Dichloroethane U 0.100 1.00
1,2-Dichloroethane U 0.0819 1.00
1,1-Dichloroethene U 0.188 1.00
cis-1,2-Dichloroethene 0.721 J 0.126 1.00
trans-1,2-Dichloroethene U 0.149 1.00
1,2-Dichloropropane U 0.149 1.00
1,1-Dichloropropene U 0.142 1.00
1,3-Dichloropropane U 0.110 1.00
2,2-Dichloropropane U 0.161 1.00
Di-isopropyl ether U 0.105 1.00
Ethylbenzene U 0.137 1.00
Hexachloro-1,3-butadiene U 0.337 1.00
Isopropylbenzene U 0.105 1.00
p-Isopropyltoluene U 0.120 1.00
2-Butanone (MEK)U 1.19 10.0
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
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ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
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QUALITY CONTROL SUMMARYWG1922396
Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 L1530810-01,02,03,04,05,06
Method Blank (MB)
(MB) R3835628-4 09/09/22 01:16
MB Result MB Qualifier MB MDL MB RDL
Analyte ug/l ug/l ug/l
Methylene Chloride U 0.430 5.00
4-Methyl-2-pentanone (MIBK) U 0.478 10.0
Methyl tert-butyl ether U 0.101 1.00
n-Propylbenzene U 0.0993 1.00
Styrene U 0.118 1.00
1,1,1,2-Tetrachloroethane U 0.147 1.00
1,1,2,2-Tetrachloroethane U 0.133 1.00
Toluene U 0.278 1.00
1,2,3-Trichlorobenzene U 0.230 1.00
1,2,4-Trichlorobenzene U 0.481 1.00
1,1,1-Trichloroethane U 0.149 1.00
1,1,2-Trichloroethane U 0.158 1.00
Trichloroethene 0.260 J 0.190 1.00
Trichlorofluoromethane U 0.160 5.00
1,2,3-Trichloropropane U 0.237 2.50
1,2,4-Trimethylbenzene U 0.322 1.00
1,3,5-Trimethylbenzene U 0.104 1.00
Vinyl chloride U 0.234 1.00
o-Xylene U 0.174 1.00
m&p-Xylenes U 0.430 2.00
Ethyl tert-butyl ether U 0.101 1.00
t-Amyl Alcohol U 4.90 50.0
tert-Butyl alcohol U 4.06 5.00
tert-Amyl Methyl Ether U 0.195 1.00
(S) Toluene-d8 104 80.0-120
(S) 4-Bromofluorobenzene 99.7 77.0-126
(S) 1,2-Dichloroethane-d4 105 70.0-130
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R3835628-1 09/08/22 23:53 • (LCSD) R3835628-2 09/09/22 00:14
Spike Amount LCS Result LCSD Result LCS Rec. LCSD Rec. Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits
Analyte ug/l ug/l ug/l %%%%%
Acetone 25.0 24.9 27.5 99.6 110 19.0-160 9.92 27
Acrylonitrile 25.0 21.6 22.0 86.4 88.0 55.0-149 1.83 20
Benzene 5.00 4.55 4.85 91.0 97.0 70.0-123 6.38 20
Bromobenzene 5.00 4.18 4.46 83.6 89.2 73.0-121 6.48 20
Bromodichloromethane 5.00 4.76 5.04 95.2 101 75.0-120 5.71 20
Bromoform 5.00 3.94 4.11 78.8 82.2 68.0-132 4.22 20
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
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ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
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QUALITY CONTROL SUMMARYWG1922396
Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 L1530810-01,02,03,04,05,06
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R3835628-1 09/08/22 23:53 • (LCSD) R3835628-2 09/09/22 00:14
Spike Amount LCS Result LCSD Result LCS Rec. LCSD Rec. Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits
Analyte ug/l ug/l ug/l %%%%%
Bromomethane 5.00 7.34 7.86 147 157 10.0-160 6.84 25
n-Butylbenzene 5.00 4.18 4.46 83.6 89.2 73.0-125 6.48 20
sec-Butylbenzene 5.00 3.96 4.37 79.2 87.4 75.0-125 9.84 20
tert-Butylbenzene 5.00 3.87 4.20 77.4 84.0 76.0-124 8.18 20
Carbon tetrachloride 5.00 4.66 5.14 93.2 103 68.0-126 9.80 20
Chlorobenzene 5.00 4.43 4.66 88.6 93.2 80.0-121 5.06 20
Chlorodibromomethane 5.00 4.17 4.34 83.4 86.8 77.0-125 4.00 20
Chloroethane 5.00 5.92 6.36 118 127 47.0-150 7.17 20
Chloroform 5.00 4.94 5.25 98.8 105 73.0-120 6.08 20
Chloromethane 5.00 3.60 4.13 72.0 82.6 41.0-142 13.7 20
2-Chlorotoluene 5.00 4.11 4.32 82.2 86.4 76.0-123 4.98 20
4-Chlorotoluene 5.00 4.12 4.24 82.4 84.8 75.0-122 2.87 20
1,2-Dibromo-3-Chloropropane 5.00 3.74 3.77 74.8 75.4 58.0-134 0.799 20
1,2-Dibromoethane 5.00 4.45 4.65 89.0 93.0 80.0-122 4.40 20
Dibromomethane 5.00 5.10 5.15 102 103 80.0-120 0.976 20
1,2-Dichlorobenzene 5.00 4.39 4.57 87.8 91.4 79.0-121 4.02 20
1,3-Dichlorobenzene 5.00 4.20 4.40 84.0 88.0 79.0-120 4.65 20
1,4-Dichlorobenzene 5.00 4.39 4.67 87.8 93.4 79.0-120 6.18 20
Dichlorodifluoromethane 5.00 3.60 3.82 72.0 76.4 51.0-149 5.93 20
1,1-Dichloroethane 5.00 4.31 4.75 86.2 95.0 70.0-126 9.71 20
1,2-Dichloroethane 5.00 4.73 4.95 94.6 99.0 70.0-128 4.55 20
1,1-Dichloroethene 5.00 4.39 4.68 87.8 93.6 71.0-124 6.39 20
cis-1,2-Dichloroethene 5.00 6.23 6.10 125 122 73.0-120 J4 J4 2.11 20
trans-1,2-Dichloroethene 5.00 4.33 4.68 86.6 93.6 73.0-120 7.77 20
1,2-Dichloropropane 5.00 4.20 4.39 84.0 87.8 77.0-125 4.42 20
1,1-Dichloropropene 5.00 4.60 4.94 92.0 98.8 74.0-126 7.13 20
1,3-Dichloropropane 5.00 4.38 4.53 87.6 90.6 80.0-120 3.37 20
2,2-Dichloropropane 5.00 3.84 4.09 76.8 81.8 58.0-130 6.31 20
Di-isopropyl ether 5.00 3.93 4.13 78.6 82.6 58.0-138 4.96 20
Ethylbenzene 5.00 4.02 4.57 80.4 91.4 79.0-123 12.8 20
Hexachloro-1,3-butadiene 5.00 3.55 3.94 71.0 78.8 54.0-138 10.4 20
Isopropylbenzene 5.00 4.03 4.33 80.6 86.6 76.0-127 7.18 20
p-Isopropyltoluene 5.00 3.95 4.27 79.0 85.4 76.0-125 7.79 20
2-Butanone (MEK)25.0 22.5 23.0 90.0 92.0 44.0-160 2.20 20
Methylene Chloride 5.00 4.64 4.79 92.8 95.8 67.0-120 3.18 20
4-Methyl-2-pentanone (MIBK) 25.0 19.6 20.1 78.4 80.4 68.0-142 2.52 20
Methyl tert-butyl ether 5.00 4.49 4.82 89.8 96.4 68.0-125 7.09 20
n-Propylbenzene 5.00 4.09 4.54 81.8 90.8 77.0-124 10.4 20
Styrene 5.00 4.09 4.26 81.8 85.2 73.0-130 4.07 20
1,1,1,2-Tetrachloroethane 5.00 4.39 4.66 87.8 93.2 75.0-125 5.97 20
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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QUALITY CONTROL SUMMARYWG1922396
Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 L1530810-01,02,03,04,05,06
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R3835628-1 09/08/22 23:53 • (LCSD) R3835628-2 09/09/22 00:14
Spike Amount LCS Result LCSD Result LCS Rec. LCSD Rec. Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits
Analyte ug/l ug/l ug/l %%%%%
1,1,2,2-Tetrachloroethane 5.00 4.53 4.82 90.6 96.4 65.0-130 6.20 20
Toluene 5.00 4.18 4.49 83.6 89.8 79.0-120 7.15 20
1,2,3-Trichlorobenzene 5.00 3.67 3.73 73.4 74.6 50.0-138 1.62 20
1,2,4-Trichlorobenzene 5.00 3.70 3.92 74.0 78.4 57.0-137 5.77 20
1,1,1-Trichloroethane 5.00 5.06 5.18 101 104 73.0-124 2.34 20
1,1,2-Trichloroethane 5.00 4.62 4.79 92.4 95.8 80.0-120 3.61 20
Trichloroethene 5.00 5.30 5.28 106 106 78.0-124 0.378 20
Trichlorofluoromethane 5.00 6.91 7.77 138 155 59.0-147 J4 11.7 20
1,2,3-Trichloropropane 5.00 4.58 4.46 91.6 89.2 73.0-130 2.65 20
1,2,4-Trimethylbenzene 5.00 4.01 4.29 80.2 85.8 76.0-121 6.75 20
1,3,5-Trimethylbenzene 5.00 3.88 4.25 77.6 85.0 76.0-122 9.10 20
Vinyl chloride 5.00 5.47 5.87 109 117 67.0-131 7.05 20
o-Xylene 5.00 4.14 4.33 82.8 86.6 80.0-122 4.49 20
m&p-Xylenes 10.0 8.27 8.79 82.7 87.9 80.0-122 6.10 20
Ethyl tert-butyl ether 5.00 4.31 4.54 86.2 90.8 63.0-138 5.20 20
tert-Butyl alcohol 25.0 24.4 24.2 97.6 96.8 27.0-160 0.823 30
tert-Amyl Methyl Ether 5.00 4.29 4.56 85.8 91.2 66.0-125 6.10 20
(S) Toluene-d8 101 102 80.0-120
(S) 4-Bromofluorobenzene 99.1 99.9 77.0-126
(S) 1,2-Dichloroethane-d4 104 105 70.0-130
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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QUALITY CONTROL SUMMARYWG1923938
Volatile Organic Compounds (GC/MS) by Method 6200B-2011 L1530810-01,02,03,04,05,06
Method Blank (MB)
(MB) R3836150-3 09/12/22 11:23
MB Result MB Qualifier MB MDL MB RDL
Analyte ug/l ug/l ug/l
Acrolein U 2.54 50.0
cis-1,2-Dichloroethene U 0.126 1.00
Naphthalene U 1.00 5.00
Tetrachloroethene U 0.300 1.00
Ethanol U 42.0 100
(S) Toluene-d8 117 80.0-120
(S) 4-Bromofluorobenzene 108 77.0-126
(S) 1,2-Dichloroethane-d4 103 70.0-130
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R3836150-1 09/12/22 10:16 • (LCSD) R3836150-2 09/12/22 10:39
Spike Amount LCS Result LCSD Result LCS Rec. LCSD Rec. Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits
Analyte ug/l ug/l ug/l %%%%%
Acrolein 25.0 24.3 22.8 97.2 91.2 10.0-160 6.37 26
cis-1,2-Dichloroethene 5.00 4.57 4.49 91.4 89.8 73.0-120 1.77 20
Naphthalene 5.00 4.29 4.52 85.8 90.4 54.0-135 5.22 20
Tetrachloroethene 5.00 5.28 5.17 106 103 72.0-132 2.11 20
ethanol 250 261 245 104 98.0 10.0-160 6.32 30
(S) Toluene-d8 118 118 80.0-120
(S) 4-Bromofluorobenzene 108 109 77.0-126
(S) 1,2-Dichloroethane-d4 104 105 70.0-130
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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QUALITY CONTROL SUMMARYWG1919783
EDB / DBCP by Method 504.1 L1530810-01,02,03,04,05,06
Method Blank (MB)
(MB) R3833292-1 09/01/22 20:47
MB Result MB Qualifier MB MDL MB RDL
Analyte ug/l ug/l ug/l
Ethylene Dibromide U 0.00536 0.0200
1,2-Dibromo-3-Chloropropane U 0.00748 0.0200
L1530550-01 Original Sample (OS) • Duplicate (DUP)
(OS) L1530550-01 09/01/22 21:35 • (DUP) R3833292-3 09/01/22 21:23
Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD
Limits
Analyte ug/l ug/l %%
Ethylene Dibromide ND ND 1.04 0.000 20
1,2-Dibromo-3-Chloropropane ND ND 1.04 0.000 20
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R3833292-4 09/01/22 23:35 • (LCSD) R3833292-5 09/02/22 02:10
Spike Amount LCS Result LCSD Result LCS Rec. LCSD Rec. Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits
Analyte ug/l ug/l ug/l %%%%%
Ethylene Dibromide 0.250 0.327 0.324 131 130 70.0-130 J4 P P 0.922 20
1,2-Dibromo-3-Chloropropane 0.250 0.264 0.264 106 106 70.0-130 P P 0.000 20
L1530550-02 Original Sample (OS) • Matrix Spike (MS)
(OS) L1530550-02 09/01/22 21:11 • (MS) R3833292-2 09/01/22 20:59
Spike Amount Original Result MS Result MS Rec. Dilution Rec. Limits MS Qualifier
Analyte ug/l ug/l ug/l %%
Ethylene Dibromide 0.0989 ND 0.113 114 1 70.0-130 P
1,2-Dibromo-3-Chloropropane 0.0989 ND 0.106 107 1 70.0-130 P
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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GLOSSARY OF TERMS
Guide to Reading and Understanding Your Laboratory Report
The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not
intended as a comprehensive explanation, and if you have additional questions please contact your project representative.
Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name,
Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and
Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received.
Abbreviations and Definitions
MDL Method Detection Limit.
ND Not detected at the Reporting Limit (or MDL where applicable).
RDL Reported Detection Limit.
Rec.Recovery.
RPD Relative Percent Difference.
SDG Sample Delivery Group.
(S)
Surrogate (Surrogate Standard) - Analytes added to every blank, sample, Laboratory Control Sample/Duplicate and
Matrix Spike/Duplicate; used to evaluate analytical efficiency by measuring recovery. Surrogates are not expected to be
detected in all environmental media.
U Not detected at the Reporting Limit (or MDL where applicable).
Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes
reported.
Dilution
If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the
standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the
laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the
result reported has already been corrected for this factor.
Limits
These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal
for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or
duplicated within these ranges.
Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control
sample. The Original Sample may not be included within the reported SDG.
Qualifier
This column provides a letter and/or number designation that corresponds to additional information concerning the result
reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and
potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable.
Result
The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was
no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL”
(Below Detectable Levels). The information in the results column should always be accompanied by either an MDL
(Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect
or report for this analyte.
Uncertainty
(Radiochemistry)Confidence level of 2 sigma.
Case Narrative (Cn)
A brief discussion about the included sample results, including a discussion of any non-conformances to protocol
observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will
be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report.
Quality Control
Summary (Qc)
This section of the report includes the results of the laboratory quality control analyses required by procedure or
analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not
being performed on your samples typically, but on laboratory generated material.
Sample Chain of
Custody (Sc)
This is the document created in the field when your samples were initially collected. This is used to verify the time and
date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This
chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the
samples from the time of collection until delivery to the laboratory for analysis.
Sample Results (Sr)
This section of your report will provide the results of all testing performed on your samples. These results are provided
by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for
each sample will provide the name and method number for the analysis reported.
Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and
times of preparation and/or analysis.
Qualifier Description
J The identification of the analyte is acceptable; the reported value is an estimate.
J1 Surrogate recovery limits have been exceeded; values are outside upper control limits.
J4 The associated batch QC was outside the established quality control range for accuracy.
P RPD between the primary and confirmatory analysis exceeded 40%.
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122
Alabama 40660 Nebraska NE-OS-15-05
Alaska 17-026 Nevada TN000032021-1
Arizona AZ0612 New Hampshire 2975
Arkansas 88-0469 New Jersey–NELAP TN002
California 2932 New Mexico ¹TN00003
Colorado TN00003 New York 11742
Connecticut PH-0197 North Carolina Env375
Florida E87487 North Carolina ¹DW21704
Georgia NELAP North Carolina ³41
Georgia ¹923 North Dakota R-140
Idaho TN00003 Ohio–VAP CL0069
Illinois 200008 Oklahoma 9915
Indiana C-TN-01 Oregon TN200002
Iowa 364 Pennsylvania 68-02979
Kansas E-10277 Rhode Island LAO00356
Kentucky ¹ ⁶KY90010 South Carolina 84004002
Kentucky ²16 South Dakota n/a
Louisiana AI30792 Tennessee ¹ ⁴2006
Louisiana LA018 Texas T104704245-20-18
Maine TN00003 Texas ⁵LAB0152
Maryland 324 Utah TN000032021-11
Massachusetts M-TN003 Vermont VT2006
Michigan 9958 Virginia 110033
Minnesota 047-999-395 Washington C847
Mississippi TN00003 West Virginia 233
Missouri 340 Wisconsin 998093910
Montana CERT0086 Wyoming A2LA
A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789
A2LA – ISO 17025 ⁵1461.02 DOD 1461.01
Canada 1461.01 USDA P330-15-00234
EPA–Crypto TN00003
ACCREDITATIONS & LOCATIONS

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