MO-6748_27500_M_DENR_20230321_AccessRequestAndRpt

Sharon Ghiold DWM UST Section 1646 Mail Service Center Raleigh, NC 27699-1646
Dear Ms. Ghiold: RE: Site Access Agreement Jimmy’s Daytona
2001 W. Vandalia Road Greensboro, Guilford County, North Carolina (WSRO) STF Incident 20685 Risk/Rank: High, H165D
I am/We are the owner(s) of a parcel of property, located at or near the incident in question, and hereby permit the Department of Environmental Quality (Department) or its contractor to enter upon said property for the purpose of conducting an investigation of the groundwaters under the
authority of G.S. 143-215.3(a)2.
I am/We are granting permission with the understanding that: 1. The investigation shall be conducted by the UST Section of the Department’s Division of Waste Management or its contractor.
2. The costs of construction and maintenance of the site and access shall be borne by the Department or its contractor. The Department or its contractor shall protect and prevent
damage to the surrounding lands.
3. Unless otherwise agreed, the Department or its contractor shall have access to the site by the
shortest feasible route to the nearest public road. The Department or its contractor may enter upon the land at reasonable times and have full right of access during the period of the investigation. 4. Any claims which may arise against the Department or its contractor shall be governed by Article 31 of Chapter 143 of the North Carolina General Statutes, Tort Claims Against State Departments and Agencies, and as otherwise provided by law.
5. The information derived from the investigation shall be made available to the owner upon request and is a public record, in accordance with G.S. 132-1.

6. The activities to be carried out by the Department or its contractor are for the primary benefit of the Department and of the State of North Carolina. Any benefits accruing to the owner are incidental. The Department or its contractor is not and shall not be construed to be an agent, employee, or contractor of the land owner.

Jimmy’s Daytona
STF #20685
November 29, 2022 Page 2
I/We agree not to interfere with, remove, or any way damage the Department’s well(s) or its
contractor’s well(s) and equipment during the investigation.

_________________________________ Signature

_________________________________ Type/Print Name of Owner or Agent

__________________________________ Phone Number

_________________________________ Address

_________________________________ City/State/Zip Code

_________________________________ Date

_________________________________ Email

MONITORING REPORT
A & H Used Auto Sales (Incident # 27500)
4216 Charles Raper Jonas Highway
Alexis, Gaston County, North Carolina
December 5, 2022
Terracon Project No. 71149629B

Prepared for:
North Carolina Department of Environmental Quality
Division of Waste Management
Raleigh, North Carolina

Prepared by:
Terracon Consultants, Inc.
Charlotte, North Carolina

Terracon Consultants, Inc. 2701 Westport Road Charlotte, NC 28208
P 704-509-1777 F 704-509-1888 terracon.com
December 5, 2022

Ms. Sharon Ghiold
North Carolina Department of Environmental Quality
Division of Waste Management
1637 Mail Service Center
Raleigh, North Carolina 27699-1637

Email: [e-mail]

Re: Monitoring Report
A & H Used Auto
4216 Charles Raper Jonas Highway
Alexis, Gaston County, North Carolina
UST Incident Number: 27500
Terracon Project No. 71149629B

Dear Ms. Ghiold:

Terracon Consultants, Inc. (Terracon) is pleased to submit this Monitoring Report for A & H Used
Auto this report details sampling activities, conducted in September and November 2022. This
report has been prepared in accordance with North Carolina Department of Environmental Quality
(NCDEQ), UST Section Assessment Guidelines, dated January 19, 2021, and Task Authorization
No. 2, approved on September 2, 2022.

If you have any questions regarding this report or the assessment activities, please contact us at
704-509-1777.

Sincerely,
Terracon Consultants, Inc.

Robert Brookshire M. Neal McElveen, P.E.
Environmental Department Manager Principal/Senior Consultant

Attachments

Table of Contents
A. SITE INFORMATION ...................................................................................................................... 1
B. EXECUTIVE SUMMARY ................................................................................................................. 2
C. SITE HISTORY AND CHARACTERIZATION ............................................................................. 1
C.1 Site Setting ................................................................................................................................................ 1
C.2 Release Summary ...................................................................................................................................... 1
C.3 Previous Investigations ............................................................................................................................. 1
C.4 Water Supply Wells ................................................................................................................................... 2
C.5 Surface Water ........................................................................................................................................... 3
C.6 Land Use Information ................................................................................................................................ 3
D. ASSESSMENT INFORMATION ................................................................................................. 3
D.1 Site Geology and Hydrogeology ................................................................................................................. 3
D.2 Sampling Activities .................................................................................................................................... 4 D.2.1 Groundwater Sampling Activities ................................................................................................................. 4
D.2.3 Analytical Results ......................................................................................................................................... 5
E. CONCLUSIONS AND RECOMMENDATIONS ................................................................ 6
FIGURES
Figure 1: Topographic Map
Figure 2: Site Plan
Figure 3: Water Supply Well Location Map
Figure 4: Groundwater Contour Map
Figure 5: Groundwater Analytical Results

TABLES
Table 1: Water Supply Well Information
Table 2: Monitoring Well Construction Information and Historical Groundwater
Elevations
Table 3: Summary of Groundwater Analytical Results
Table 4: Summary of Historical Groundwater Analytical Results
APPENDIX
Appendix A: Field Notes
Appendix B: Laboratory Analytical Results and Chain of Custody Forms
Appendix C: Photographs
A & H Used Auto Sales Alexis, North Carolina Project Number 71149629B Incident No. 27500 December 5, 2022

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MONITORING REPORT
A. SITE INFORMATION
Date of Report: December 5, 2022
NCDEQ Incident No: 27500
Facility ID: Unknown
Site Name: A & H Used Auto Sales
Site Location: 4216 Charles Raper Jonas Highway
Alexis, Gaston County, North Carolina
Latitude: N 35o 23’ 56.492”
Longitude: W 81o 7’ 0.99”
UST Owner/Operator: Unknown
Current Property Owner: Chucktown Properties LLC
209 Alexis Lucia Road
Alexis, North Carolina 28006
Current Property Occupant: Sparks Auto Sales 4216 Charles Raper Jonas Highway
Alexis, North Carolina 28006 Consultant: Terracon Consultants, Inc.
2701 Westport Road Charlotte, North Carolina 28208 [phone]
Laboratory: Pace Analytical (NCDEQ No. 5342)
9800 Kincey Avenue
Huntersville, North Carolina 28028
704-875-9092
Release Information: Release Discovery Date: 2003
Estimated Quantity: Unknown
Cause of Release: Unknown
Source of Release: Former UST System
Currently Active Tanks: None – Tanks reportedly removed in the mid-
1980s.

A & H Used Auto Sales Alexis, North Carolina Project Number 71149629B Incident No. 27500 December 5, 2022

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I, M. Neal McElveen, a Professional Engineer for Terracon Consultants, Inc., do certify that the
information contained in this report is correct and accurate to the best of my knowledge.

M. Neal McElveen, P.E.
NC License No. 20699

Terracon Consultants, Inc. is licensed to practice geology/engineering in North Carolina. The certification number of the corporation is F-0869.
B. EXECUTIVE SUMMARY
Terracon Consultants, Inc. (Terracon) has completed a Monitoring Report, documenting field
activities conducted at A & H Used Auto (Incident No. 27500). The site is located at 4216 Charles
Raper Jonas Highway in Alexis, Gaston County, North Carolina. Terracon completed this report to
summarize the findings of assessment activities performed in September and November, 2022.

This assessment was performed under Task Authorization (TA) approval, prepared for the Trust
Fund Branch of the Underground Storage Tank (UST) Section, North Carolina Department of
Environmental Quality (NCDEQ), TA-02, authorized on September 2, 2022. The work is being
performed as part of the State Lead contract #N122019C between NCDEQ and Terracon. This
Monitoring Report was prepared in general accordance with the 15A NCAC 2L.0115 regulations
and the NCDEQ UST Assessment Guidelines, dated January 2021, under the supervision of Mr. M.
Neal McElveen, a North Carolina registered professional engineer (North Carolina License No.
20699).

The site is currently houses a 2,500 square foot commercial building that is occupied by Sparks
Auto. Most of the ground covering the site consists of paved asphalt and gravel parking areas with
some grassed areas.. An unknown number of USTs reportedly operated on the site in the mid-
1970s and were removed in the mid-1980s. Soil and groundwater sampling conducted in 2003
confirmed a petroleum release from the former on-site UST systems.

In September and November, 2022, Terracon sampled monitoring wells MW-1, MW-2, MW-3, MW-
5, and water supply wells WSW-1, WSW-3, WSW-4, and WSW-7. Water supply well WSW-2 could
not be sampled due to lack of power to the pump, and water supply wells WSW-5 and WSW-6
could not be sampled due to an absence of property owner and lack of available spigot. The
collected groundwater samples were submitted for laboratory analysis for volatile organic
compounds (VOCs), by Standard Method 6200B and compared to North Carolina Groundwater
Quality Standards 15A NCAC 2L .0202 (2L Standards) and Gross Contamination Levels (GCLs).
A & H Used Auto Sales Alexis, North Carolina Project Number 71149629B Incident No. 27500 December 5, 2022

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Results of the recent and previous assessment activities indicate the following:
No constituents of concern (COCs) were detected above their respective GCLs.
Benzene and 1,2-dichloroethane exceeded 2L Standards in groundwater from monitoring well
MW-1 and water supply well WSW-1.
1,2-dichloroethane exceeded the 2L Standards in groundwater for water supply well WSW-3.
Several COCs were detected below their 2L standards in groundwater from monitoring wells
MW-1, MW-2 and water supply wells WSW-1.
No COCs were detected above their method detection limits (MDLs) in groundwater from
monitoring wells MW-3 and MW-5, and water supply wells WSW-4 and WSW-7.
Depth to groundwater ranged from approximately 32.97 feet below top of casing (btoc) in
monitoring well MW-5 to 35.92 feet btoc in monitoring well MW-2 and general groundwater flow
direction is southwest.
Compared to historical analytical results, VOCs appear to be generally stable or decreasing in
the sampled monitoring wells.
Based on these conclusions, Terracon provides the following recommendations.
Terracon recommends continuing to monitor for natural attenuation of COCs.
Terracon recommends seeking approval to abandon water supply wells WSW-1, WSW-2
and WSW-3. The water supply wells are operable but are reportedly not used to provide
potable water.
A & H Used Auto Sales Alexis, North Carolina Project Number 71149629B Incident No. 27500 December 5, 2022

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C. SITE HISTORY AND CHARACTERIZATION
The Former A & H Used Auto site located at 4216 Charles Raper Jonas Highway in Alexis, North
Carolina (Figure 1).

C.1 Site Setting
The Former A & H Used is comprised of approximately 0.37 acres and is developed with an
approximate 2,500 square foot auto repair shop. The site is depicted in Figure 2.

The site is bound to the west by Charles Raper Jonas Highway. A mixture of residential and
commercial properties extends to the north and south along Charles Raper Jonas Highway.
Scattered residential development and agricultural land are located to the east. A railroad track is
located to the west of the site, parallel to the highway. Residential properties are located along
Charlotte Street to the west of the railroad tracks.

C.2 Release Summary
An underground storage tank (UST) system reportedly operated on the site in the mid-1970s and
was removed in the mid-1980s. Soil and groundwater sampling conducted in 2003 confirmed an
impact of petroleum constituents on the site. Two other groundwater incidents are documented to
the north of the site, the Country Corner (Incident No. 23108) and Alexis Grocery (Incident No.
27094). A chronological summary of assessment and remediation activities at the site is discussed
in the following section of the report.

C.3 Previous Investigations
In 2003, Mid-Atlantic Associates collected soil samples from 12 borings advanced in the source
area and two groundwater samples from nearby water-supply wells. Based on the results of their
initial sampling activities, Mid-Atlantic Associates oversaw the removal of 274.35 tons of petroleum-
impacted soil and the installation of an on-site monitoring well (MW-1). Confirmation sampling
conducted after soils were excavated indicated total petroleum hydrocarbon (TPH) gasoline range
organics (GRO) and diesel range organics (DRO) above regulatory action levels. The groundwater
sample collected from monitoring well MW-1 indicated the presence of multiple petroleum COCs
above their respective GCLs. Mid-Atlantic Associates completed an 8-hour AFVR event, recovering
approximately 42 gallons of fluid from the well in an attempt to reduce contaminant concentrations
in the groundwater.

In 2004, Hart & Hickman sampled WSW-1 and monitoring well MW-1. The sample collected from
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well MW-1 indicated petroleum COCs at concentrations significantly higher than previous sampling
events. The groundwater sample collected from water supply well WSW-1 indicated concentrations
above 2L Standards.

In 2005, Hart & Hickman conducted several sampling events. Constituent concentrations were
detected above GCLs in monitoring well MW-1 and above 2L Standards in WSW-1 and WSW-3.

In February 2010, Progress Environmental completed a Comprehensive Site Assessment. The CSA
included the installation of five additional Type II groundwater monitoring wells (MW-2 through MW-
6) on the site. Soil samples indicated multiple petroleum constituents were present at levels that
exceeded their respective Soil-to-Water Maximum Soil Contaminant Concentrations (MSCCs) and
one constituent was detected above its Industrial/Commercial Soil Cleanup Level. Petroleum
constituents were detected in four of the newly installed wells above 2L Standards. Following the
completion of the CSA, Progress prepared a Corrective Action Plan (CAP) dated September 30,
2010 recommending the installation of a Soil Vapor Extraction (SVE) System.

In 2012, Progress oversaw the installation of the SVE system which included the installation of
three recovery wells (SVE-1, SVE-2 and SVE-3). A groundwater sampling event conducted after the
installation of the SVE system indicated constituent concentrations above GCL in MW-1.

In July 2013, Crawford Environmental Services (Crawford) completed a groundwater monitoring
event. Constituent concentrations were detected above GCL in monitoring well MW-1.

On August 28, 2014 Terracon first mobilized to the site to collect groundwater samplings
frommonitoring wells MW-1, MW-2, MW-3, MW-4, MW-5, and MW-6, and water supply wells WSW-
1, WSW-4, WSW-5, WSW-6 and WSW-7. Constiuent concentrations were detected above GCLs in
groundwater from MW-1. Constituent concentrations exceeded 2L standards in groundwater from
water supply well WSW-1. Terracon also sampled the soil vapor discharge from the on-site SVE
system. The vapor/air sample indicated levels below the US Environmental Protection Agency
(USEPA) Residential Regional Screening Levels (RSLs). At the direction of NCDEQ, Terracon shut-
off the on-site SVE system and installed an oxygenating bio-sock in monitoring well MW-1 in 2015.

From November 2014 to May 2021, Terracon performed multiple groundwater sampling events to
monitor COC concentrations on and offsite. During that time several constituent concentrations
were consistently deetcted above their 2L Standards in MW-1. Constituent concentrations were
consistently detected below their respective 2L Standards in MW-2.

C.4 Water Supply Wells
During a receptor survey conducted in 2014, twenty-five receptor survey letters were sent to
properties located within 1,500 feet of the site. Of the twenty-five water supply wells, two were
reportedly out of service (WSW-2 and WSW-8). The remaining water supply wells were reported as
A & H Used Auto Sales Alexis, North Carolina Project Number 71149629B Incident No. 27500 December 5, 2022

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active and supplying their respective properties with potable drinking water. The closest reported
water supply well used for drinking water purposes is WSW-4, located approximately 370 feet
southwest of the site at 416 Charlotte Street.

Water supply well information is summarized in Table 1. The approximate locations of the identified
water supply wells are shown on Figure 3.

C.5 Surface Water
According to the USGS topographic map, the site is situated near the crest of a localized north–
south trending topographic ridge that generally parallels Charles Raper Jonas Highway. The closest
surface waters are two ponds at the headwaters of two unnamed tributaries, located approximately
700 feet east and about 1,000 feet southwest of the site. Surface waters are depicted on Figure 1.

C.6 Land Use Information
A mixture of residential and commercial properties extends to the north and south along Charles
Raper Jonas Highway. Scattered residential development and agricultural land are located to the
east. A railroad track is located to the west, parallel to the highway. The Alexis Volunteer Fire
Department is located west of the site, across Charles Raper Jonas Highway. Residential
development occurs along Charlotte Street to the west of the railroad tracks.

D. ASSESSMENT INFORMATION
D.1 Site Geology and Hydrogeology
The following resources were reviewed to evaluate site-specific geological and hydrogeological
characteristics.

Lincolnton East, Lowesville, Gastonia North and Mount Holly Quadrangles, North Carolina, USGS
7.5-minute series topographic maps, dated 1993, 1970, 2003 and 1993, respectively (Figure 1).
Geologic Map of North Carolina, dated 1985.
The Geology of the Carolinas, Carolina Geological Society Fiftieth Anniversary Volume, edited by
J. Wright Horton, Jr., and Victor A. Zullo, The University of Tennessee Press, dated 1991.
Soil Survey of Gaston County, North Carolina, US Department of Agriculture, Natural Resources
Conservation Service, Web Soil Survey via the Internet, http://websoilsurvey.nrcs.usda.gov/app/.

The site is located within the Kings Mountain Belt of the Piedmont Physiographic Province. The
Piedmont Province generally consists of low to medium elevation, rounded hills and long rolling
northeast to southwest trending ridges with incised creeks and river channels. Underlying rock in
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the site area is described as quartz sericite schist and metamorphosed volcanic rocks.

In-place chemical and physical weathering of parent rocks typically form residual soils in the
Piedmont region. Weathering is facilitated by the presence of fractures, joints, and less resistant
minerals in the rock. In areas not altered by erosion, alluvial deposition or the activities of man, the
typical residual soil profile consists of clay-rich unconsolidated materials at the surface, transitioning
to sandy silts and silty sands at depth. Typically, the boundary between soil and rock is not sharply
defined. This transitional zone is termed “partially weathered rock” or saprolite. Information
obtained from the Web Soil Survey for Gaston County, depicts soils at the site as Cecil sandy clay
loam (CeB2).

In the Piedmont, groundwater generally occurs in pore spaces within soils and in the structural
features present in the underlying rock (i.e. joints, fractures, and faults). Recharge to the water
table is primarily by precipitation infiltrating the surficial soils and percolating downward under the
influence of gravity to the water table (vadose zone). Typically, the water table is not a level
surface, but a subdued reflection of the land surface. The depth to the water table is not consistent
and is dependent upon several factors that include the amount of rainfall, permeability of the soil,
the extent of fracturing in the underlying rock and the influences of groundwater pumping.
Groundwater typically flows in directions parallel to the ground surface and under the influence of
gravity, migrates to discharge points such as surface water features, the toes of slopes or natural
springs.

Fluctuations in the depth of the water table can be expected depending on variations in
precipitation, surface water run-off and other factors not evident at the time of our subsurface
exploration. Normally, the highest levels of the water table occur in late winter and spring and the
lowest levels occur in the late summer and fall. Based on an interpreted groundwater flow direction
from historical data, groundwater is expected to flow to the southwest from the site.

D.2 Sampling Activities
D.2.1 Groundwater Sampling Activities
On September 29, 2022 Terracon mobilized to the site to conduct a groundwater sampling event on
monitoring wells MW-1, MW-2, MW-3, and MW-5. Monitoring wells MW-1 and MW-2 were unable to
be sampled at that time due to vehichles parked over the wells; however, after coordination between
Terracon, NCDEQ and the property owner, personnel returned to the site on November 15, 2022 to
collect groundwater samplesfrom monitoring wells MW-1 and MW-2. Prior to sampling activities,
monitoring wells MW-1, MW-2, MW-3, and MW-5 were located and gauged for depth to water. Depth
to groundwater ranged from 32.97 feet btoc in well MW-5 to 35.92 feet btoc in well MW-2. Based on
groundwater elevation data obtained, groundwater flows southwest, as depicted on Figure 4. Current
groundwater measurements and relative groundwater elevations are provided in Table 2.
A & H Used Auto Sales Alexis, North Carolina Project Number 71149629B Incident No. 27500 December 5, 2022

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Prior to sampling, monitoring wells were purged of approximately three well volumes, or until dry, and
allowed to recharge to static water levels. Field parameters (temperature, pH, dissolved oxygen,
conductivity, and redox,) were measured and recorded during sampling. Parameters were recorded in
the field notes, provided in Appendix A.

Additionally, groundwater samples were collected from water supply wells WSW-1, WSW-3, WSW-4,
and WSW-7. Prior to sample collection, water supply wells were allowed to run for 15-minutes to purge
stagnant water.

The groundwater samples were collected in laboratory-supplied glassware, labeled and stored in an
ice-packed cooler. The samples, along with chain-of-custody documentation, were delivered to
Pace Analytical Services, Inc. in Huntersville, North Carolina for analysis of VOCs by Standard
Method 6200B, including MTBE, IPE and EDB.

D.2.3 Analytical Results
In September and November 2022, Terracon collected groundwater samples from monitoring wells
MW-1, MW-2, MW-3, and MW-5, and water supply wells WSW-1, WSW-3, WSW-4, and WSW-7 for
laboratory analysis. The laboratory analytical results were compared to the North Carolina
Groundwater Quality Standards 15A NCAC 2L .0202 and indicated the following:

Benzene and 1,2-DCA concentrations exceeded 2L Standards in groundwater from
monitoring well MW-1 and water supply well WSW-1.
1,2-DCA concentration exceeded the 2L Standard in groundwater from water supply well
WSW-3.
Several COCs were detected below their respective 2L standards in groundwater from
monitoring wells MW-1 and MW-2, and water supply well WSW-1.
No COCs were detected at concentrations above the MDLs in groundwater from monitoring
wells MW-3 and MW-5, and water supply wells WSW-4 and WSW-7.

Current and historical groundwater analytical results are summarized in Tables 3 & 4,
respectively. Groundwater results with COC concentrations exceeding 2L Standards are shown on
Figure 5. A copy of the laboratory analytical report is provided in Appendix B.

Compared to historical analytical results, VOCs appear to be generally stable or decreasing in the
sampled monitoring wells.
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E. CONCLUSIONS AND RECOMMENDATIONS
Terracon has completed a Monitoring Report, documenting the groundwater sampling event
conducted at former A & H Used Auto site (Incident No. 27500). The site is located at 4216 Charles
Raper Jonas Highway, Gaston County, North Carolina. Results of the recent and previous assessment
activities indicate the following:
No constituents of concern (COCs) were detected above their respective GCLs.
Benzene and 1,2-dichloroethane exceeded 2L Standards in groundwater from monitoring well
MW-1 and water supply well WSW-1.
1,2-dichloroethane exceeded the 2L Standard in water supply well WSW-3.
Several COCs were detected below their 2L standards in groundwater from monitoring wells
MW-1, MW-2 and water supply wells WSW-1.
No COCs were detected above their method detection limits (MDLs) in groundwater from
monitoring wells MW-3 and MW-5, and water supply wells WSW-4 and WSW-7.
Depth to groundwater ranged from approximately 32.97 feet below top of casing (btoc) in
monitoring well MW-5 to 35.92 feet btoc in monitoring well MW-2 and general groundwater flow
direction is southeast.
Compared to historical analytical results, VOCs appear to be generally stable or decreasing in
the sampled monitoring wells.
Based on these conclusions, Terracon provides the following recommendations.
Terracon recommends continuing to monitor for natural attenuation of COCs.
Terracon recommends seeking approval to abandon water supply wells WSW-1, WSW-2
and WSW-3. The water supply wells are operable but are reportedly not used to provide
potable water.

FIGURES
Approximate Site Boundary
Topographic Map
Former A&H Used Auto (Incident # 27500) 4216 Charles Raper Jonas Highway Alexis, NC
TOPOGRAPHIC MAP IMAGE COURTESY OF THE U.S. GEOLOGICAL SURVEY QUADRANGLES INCLUDE: LINCOLNTON EAST, NC (1/1/1993), LOWESVILLE, NC (1/1/1970), GASTONIA NORTH, NC (1/1/2003) and MOUNT HOLLY, NC (1/1/1993).
2701 Westport Road
Charlotte, NC 28216
71149629B Project Manager:
Drawn by:
Checked by:
Approved by:

TAH
MNM
MNM
1”=2,000’
A&H Auto
Nov 2022
Project No.
Scale:
File Name:
Date: 1
Figure RSB

APPROXIMATE
SITE BOUNDARY
Former A&H Used Auto (Incident # 27500)
4216 Charles Raper Jonas HighwayAlexis, NC
2701 Westport Road
Charlotte, NC
DIAGRAM IS FOR GENERAL LOCATION ONLY, AND IS NOT INTENDED FOR CONSTRUCTION PURPOSES
71149629B
TAH
MNM
MNM
1”~ 45’
Nov 2022
Scale:
2
FigureProject Manager:
Drawn by:
Checked by:
Approved by:
Project No.
File Name:
Date:
RSB Site Plan
MW-5 MW-6
MW-3
MW-4
WSW-1
MW-2
MW-1
WSW-2
WSW-3
SVE System
Former Excavation
Former Dispenser
Island
A&H Auto
Approximate site boundary
Monitoring Well Location
Water Supply Well Location
SVE Well Location
LEGEND
Water Supply Well Location Map
2701 Westport Road
Charlotte, NC
DIAGRAM IS FOR GENERAL LOCATION ONLY, AND IS NOT INTENDED FOR CONSTRUCTION PURPOSES
71149629B
TAH
MNM
MNM
1”~ 320’
Nov 2022
Scale:
3
FigureProject Manager:
Drawn by:
Checked by:
Approved by:
Project No.
File Name:
Date:
RSB
1,000 ft. Radius
(from release location)
NUMBER CORRESPONDS WITH WATER SUPPLY WELL INFORMATION LISTED IN TABLE 1
1
2
3
5
4
7
6
8
-INDICATE VISUALLY IDENTIFIED WELL STRUCTURES.
Former A&H Used Auto (Incident # 27500)4216 Charles Raper Jones HighwayAlexis, NC
21
22
17
19
9
10
11
12
13
14
15
16
18
20
23
24
25
A&H Auto
Former A&H Used Auto (Incident # 27500)
4216 Charles Raper Jonas HighwayAlexis, NC
2701 Westport Road
Charlotte, NC
DIAGRAM IS FOR GENERAL LOCATION ONLY, AND IS NOT INTENDED FOR CONSTRUCTION PURPOSES
71149629B
TAH
MNM
MNM
1”~ 45’
Nov 2022
Scale:
4
FigureProject Manager:
Drawn by:
Checked by:
Approved by:
Project No.
File Name:
Date:
RSB Groundwater Contour Map
MW-5 MW-6
MW-3
MW-4
WSW-1
MW-2
MW-1
WSW-2
WSW-3
Approximate site boundary
Monitoring Well Location
Water Supply Well Location
SVE System
Former Excavation
Former Dispenser
Island
SVE Well Location
A&H Auto
GROUNDWATER ELEVATIONS MEASURED ON 9/29/2022 AND 11/15/2022. GROUNDWATER FLOW DIRECTION INFERRED BASED ON PAST ELEVATION DATA. Approximate Flow Direction
Groundwater Elevation Contour
64.85’
65.87’
66’
65’(65.22’)
(65.18’)
LEGEND
64.85’Groundwater Elevation
(65.22’)Groundwater Elevation –not
used in contouring
Former A&H Used Auto (Incident # 27500)
4216 Charles Raper Jonas HighwayAlexis, NC
2701 Westport Road
Charlotte, NC
DIAGRAM IS FOR GENERAL LOCATION ONLY, AND IS NOT INTENDED FOR CONSTRUCTION PURPOSES
71149629B
TAH
MNM
MNM
1”~ 45’
Nov 2022
Scale:
5
FigureProject Manager:
Drawn by:
Checked by:
Approved by:
Project No.
File Name:
Date:
RSB Groundwater Analytical Results
MW-5
MW-6
MW-3
MW-4
WSW-1
MW-2
MW-1
WSW-2
WSW-3
SVE System
Former Excavation
Former Dispenser
Island
A&H Auto
Constituents of Concern 2L GCL
Benzene 1 5,000
1,2-Dichloroethane 0.4 400
WSW-1
Benzene 1.3
1,2-Dichloroethane 0.76
MW-3
No detections above MDL
MW-5
No detections above MDL
MW-2
No detections above 2L
Standards
WSW-3
1,2-Dichloroethane 0.71
WSW-1
Benzene 37.7
1,2-Dichloroethane 7.2
Approximate site boundary
Monitoring Well Location
Water Supply Well Location
SVE Well Location
LEGEND
GROUNDWATER SAMPLES COLLECTED ON 9/29/2022.
CONCENTRATIONS DISPLAYED IN MICROGRAMS PER LITER [µg/L].
MDL = METHOD DETECTION LIMIT

TABLES
TABLE 1
Water Supply Well Information
Former A+H Used Auto
4216 Charles Raper Jonas Hwy
Alexis, North Carolina
Terracon Project No. 71149629B
NCDEQ Incident No. 27500
WSW-1 Charles Kelly Morris, Jr.209 Alexis Lucia Road
Alexis, NC 28006
4216 Charles Raper Jonas
Hwy Alexis, NC 28006 ~50 feet east Active 165046 Obtained a sample from the spigot.
WSW-2 Charles Kelly Morris, Jr.209 Alexis Lucia Road
Alexis, NC 28006
4222 Charles Raper Jonas
Hwy Alexis, NC 28006 ~100 feet north Out of Service 165045 No power to the well.
WSW-3 Alexis Volunteer Fire Department PO Box 157
Alexis, NC 28006
4215 Charles Raper Jonas
Hwy Alexis, NC 28006 ~130 feet southwest Active 165042 Does not provide water to the fire house but is operable.
WSW-4 Adventure in Faith Church PO Box 218
Alexis, NC 28006
416 Charlotte Street
Alexis, NC 28006 ~370 feet southwest Active (Potable)165052 Provides water to the on-site residence.
WSW-5 Clippard Properties Ltd.141 Charlotte Street
Alexis, NC 28006
4227 Charles Raper Jonas
Hwy Alexis, NC 28006 ~200 feet west Active (Potable)165047 Provides water to the on-site residence.
WSW-6 Mark & Michelle Drye PO Box 610
Alexis, NC 28006
4186 Charles Raper Jonas
Hwy Alexis, NC 28006 ~590 feet southeast Active (Potable)165098 Provides water to the on-site residence.
WSW-7 Ronald & Dawn Hager 4202 Charles Raper Jonas Hwy
Alexis, NC 28006
4202 Charles Raper Jonas
Hwy Alexis, NC 28006 ~450 feet southeast Active (Potable)165094 Provides water to the on-site residence.
WSW-8 Sadlers Country Corner LLC.PO Box 489
Alexis, NC 28006
4232 Charles Raper Jonas
Hwy Alexis, NC 28006 ~360 feet southeast Out of Service 165043 Reportedly abandoned. Water on the site is provided by water
supply well WSW-19, located at 150 Alexis-Lucia Road.
WSW-9 Lucinda Murks PO Box 342
Alexis, NC 28006
402 Charlotte Street
Alexis, NC 28006 ~610 feet south Active (Potable)165062 Provides water to the on-site residence.
WSW-10 Sadler County Corner LLC.PO Box 489
Alexis, NC 28006
4308 Charles Raper Jonas
Hwy Alexis, NC 28006 ~650 feet northwest Active (Potable)164422 Provides water to the on-site business.
WSW-11 Norman W. Sisk 441 Charlotte Street
Alexis, NC 28006
441 Charlotte Street
Alexis, NC 28006 ~815 feet west Active (Potable)165034 Provides water to on-site residence and 205 Alexis High Shoals
Road.
WSW-12 Darrin Brown 325 Charlotte Street
Alexis, NC 28006
325 Charlotte Street
Alexis, NC 28006 ~860 feet south Active (Potable)165082 Provides water to the on-site residence.
WSW-13 Robert Deason 4178 Charles Raper Jonas Hwy
Alexis, NC 28006
4178 Charles Raper Jonas
Hwy Alexis, NC 28006 ~865 feet southeast Active (Potable)165097 Provides water to the on-site residence.
WSW-14 Rachel Stroupe PO Box 315
Alexis, NC 28006
111 Lee Stroupe Road
Dallas, NC 28034 ~950 feet southwest Active (Potable)211933 Provides water to the on-site residence.
WSW-15 Warren Conner PO Box 639
Alexis, NC 28006
110 McAlister Road
Alexis, NC 28006 ~980 feet northwest Active (Potable)164418 Provides water to on-site residence and 202 Alexis High Shoals
Road.
WSW-16 Alexis Volunteer Fire Department PO Box 157
Alexis, NC 28006
4168 Charles Raper Jonas
Hwy Alexis, NC 28006 ~1,050 feet southeast Active (Potable)208266 Two wells reportedly located on the property
WSW-17 Sadler Properties LLC.PO Box 489
Alexis, NC 28006
141 Alexis-Lucia Road
Alexis, NC 28006 ~1,100 feet northeast Active (Potable)164205 Provides water to on-site residence, 137 Alexis-Lucia Road and
145 Alexis-Lucia Road.
WSW-18 Alexis Baptist Church PO Box 39
Alexis, NC 28006
215 Alexis High Shoals Road
lexis, NC 28006 ~1,150 feet west Active (Potable)165022 Provides water to the on-site church.
WSW-19 Sadler Properties LLC.PO Box 489
Alexis, NC 28006
150 Alexis-Lucia Road
Alexis, NC 28006 ~1,180 feet northeast Active (Potable)165092
Provides water to on-site residence, 104 Alexis-Lucia Road, 148
Alexis-Lucia Road and the D&R Country Corner Store at 4232
Charles Raper Jonas Highway.
WSW-20 Tim Stroupe PO Box 159
Alexis, NC 28006
120 Sproles Smith Road
Alexis, NC 28006 ~1,175 feet southwest Active (Potable)211934 Provides water to the on-site residence.
WSW-21 Rodney & Pamela Norris 305 Charlotte Street
Alexis, NC 28006
309 Charlotte Street
Alexis, NC 28006 ~1,200 feet south Active (Potable)165065 Provides water to the on-site residence.
WSW-22 Jason Norris 305 Charlotte Street
Alexis, NC 28006
305 Charlotte Street
Alexis, NC 28006 ~1,200 feet south Active (Potable)217967 Provides water to on-site residence and 303 Charlotte Street.
WSW-23 Lon D. Queen PO Box 566
Alexis, NC 28006
214 Alexis High Shoals Road
Alexis, NC 28006 ~1,200 feet west Active (Potable)165021 Provides water to the on-site residence.
WSW-24 Robert D. Homesley PO Box 318
Alexis, NC 28006
200 McAlister Road
Alexis, NC 28006 ~1,250 feet southeast Active (Potable)164366 Provides water to the on-site residence.
WSW-25 LaVonne S. Smith PO Box 1107
Praireville, LA 70769
2029 Mayberry Road
Alexis, NC 28006 ~1,280 feet southwest Active (Potable)165069 Provides water to the on-site residence.
Notes
No wells connected to municipal water
Parcel No.NotesWell No.Property Owner Mailing Address Property Address Distance/Directions from
source area Well Status/Use
TABLE 2
Monitoring Well Construction Information
and Historical Groundwater Elevations
Former A+H Used Auto
4216 Charles Raper Jonas Hwy
Alexis, North Carolina
Terracon Project No. 71149629B
NCDEQ Incident No. 27500
Well Id
Date
Intalled
Date Water Level
Measured
Well Casing
Depth (ft. BGS)
Casing diameter
(in.)
Screened
Interval (x to y
ft. BGS)
Bottom of Well
(ft. BGS)
Top of Casing
Elevation (ft.)
Depth to Water
from Top of
Casing (ft.)
Free Product
Thickness (ft.)
Groundwater
Elevation (ft.)
2/12/2010 33.85 -66.15
6/7/2012 34.40 -65.60
6/4/2013 34.72 -65.28
8/28/2014 31.83 -68.17
3/17/2016 31.82 -68.18
3/7/2018 35.49 -64.51
10/17/2018
4/4/2019 30.10 -69.90
10/16/2019 32.63 -67.37
4/29/2020 30.30 -69.70
5/6/2021 28.45 -71.55
11/15/2022 34.78 65.22
2/12/2010 34.87 -66.23
6/7/2012 35.32 -65.78
6/4/2013 35.71 -65.39
8/28/2014 33.03 -68.07
3/17/2016 32.77 -68.33
3/7/2018 37.85 -63.25
10/17/2018
4/4/2019 31.4 -69.7
10/16/2019
4/29/2020 30.93 -70.17
5/6/2021 29.25 -71.85
11/15/2022 35.92 65.18
2/12/2010 32.22 -67.34
6/7/2012 33.99 -65.57
6/4/2013 34.07 -65.49
8/28/2014 31.03 -68.53
3/17/2016 29.86 -69.70
3/7/2018 36.23 -63.33
10/17/2018 34.61 -64.95
5/6/2021 27.16 -72.40
9/29/2022 34.71 -64.85
2/12/2010 34.93 -65.93
6/7/2012 35.50 -65.36
6/4/2013 35.86 -65.00
8/28/2014 33.02 -67.84
3/17/2016 32.69 -68.17
3/7/2018 38.07 -62.79
10/17/2018 36.65 -64.21
10/16/2019 33.44 -67.42
2/12/2010 32.33 -66.51
6/7/2012 33.17 -65.67
6/4/2013 33.21 -65.63
3/7/2018
9/29/2022 32.97 -65.87
2/12/2010 31.82 -65.89
6/7/2012 32.59 -65.12
6/4/2013 32.82 -64.89
8/28/2014 30.27 -67.44
3/7/2018
Notes:
"-" indicates no free product was measured
The reference point for elevation measurements is the top of casing elevation of well MW-1. Reference elevation is assumed to be 100 feet.
All wells are classified as Type II
97.71
Not Sampled
MW-4 2/3/2010
Not Sampled
40
40 98.84
40 100.86
MW-5 2/3/2010 15 2 15-40
MW-6 2/3/2010 15-40152
15 2 15-40
MW-1 7/21/2003 20 4 20-35 Not Located35100.00
40 101.10
40 99.56
Not Sampled - Car Parked Over Well
Not Sampled - Car Parked Over WellMW-2 2/3/2010 15 2 15-40
MW-3 2/3/2010 15 2 15-40
TABLE 3
Summary of Groundwater Analytical Results
Former A+H Used Auto
4216 Charles Raper Jonas Hwy
Alexis, North Carolina
Terracon Project No. 71149629B
NCDEQ Incident No. 27500
Well/Sample
I.D.
Date
Collected
(mm/dd/yy)
1 0.4 70 600 6 500 70 70 20 70 600 400 400
5,000 400 70,000 84,500 6,000 85,500 5,900 30,500 20,000 26,100 260,000 28,500 24,100
MW-1 11/15/2022 37.7 7.2 6.8 <0.30 <0.64 66.9 0.54 0.99 1.1 1.3 19.5 8.1 5.3
MW-2 11/15/2022 <0.34 <0.32 <0.31 <0.30 <0.64 <1.05 <0.49 <0.33 0.47J <0.34 <0.48 <0.50 <0.33
MW-3 9/29/2022 <0.34 <0.32 <0.31 <0.30 <0.64 <1.05 <0.49 <0.33 <0.42 <0.34 <0.48 <0.50 <0.33
MW-5 9/29/2022 <0.34 <0.32 <0.31 <0.30 <0.64 <1.05 <0.49 <0.33 <0.42 <0.34 <0.48 <0.50 <0.33
WSW-1 9/29/2022 1.3 0.76 0.81 0.45J 4.4 2.1 <0.49 <0.33 <0.42 <0.34 <0.48 <0.50 <0.33
WSW-3 9/29/2022 <0.34 0.71 <0.31 <0.30 <0.64 <1.05 <0.49 <0.33 <0.42 <0.34 <0.48 <0.50 <0.33
WSW-4 9/29/2022 <0.34 <0.32 <0.31 <0.30 <0.64 <1.05 <0.49 <0.33 <0.42 <0.34 <0.48 <0.50 <0.33
WSW-7 9/29/2022 <0.34 <0.32 <0.31 <0.30 <0.64 <1.05 <0.49 <0.33 <0.42 <0.34 <0.48 <0.50 <0.33
Notes
Groundwater results reported in micrograms per liter (µg/L).
ND - not detected (Detection limits are unknown for sampling conducted prior to Terracon's involvement with the site.)
<- less than method detection limit
J - estimated values.
Bold - levels above the 2L standard.
Bold and yellow shading - levels above GCLs
2L Standard (ug/L)
GCL (ug/L)Xylenes (Total)Dilsopropyl Ether (DIPE)EthylbenzeneNaphthaleneAnalytical Method
Contaminant of Concern →Benzene1,2-Dichloroethane6200B
n-PropylbenzeneToluene1,2,4-Trimethylbenzene1,3,5-Trimethylbenzenen-ButylbenzeneIsopropylbenzeneMethyl-tert-butyl ether1 of 1
TABLE 4
Summary of Historical Groundwater Analytical Results
Former A+H Used Auto
4216 Charles Raper Jonas Hwy
Alexis, North Carolina
Terracon Project No. 71149629B
NCDEQ Incident No. 27500
625 6010
Well/Sample
I.D.
Date
Collected
(mm/dd/yy)
1 70 3000 70 0.4 0.02 70 600 70 20 6 70 0.7 600 400 400 500 3 400 700 10,000 200 15
5,000 5,900 NE 70,000 400 50 70,000 80,000 30,500 20,000 6,000 26,100 700 260,000 28,500 24,100 50,000 170 NE NE NE NE 15,000
10/12/2005 14,000 NR NR ND 100 710 ND ND ND ND ND ND ND 34,000 1,800 510 ND NR NR NR NR NR NR
2/12/2010 4,560 NR NR 56.3 693 260 739 504 ND 123 132 45.5 ND 6,630 884 381 6,260 288 23,600 24,310 4,640 ND 100
6/5/2012 4,310 NR NR ND 700 194 710 744 45.4 120 426 84 ND 9,920 2,450 676 12,530 NR NR NR NR NR NR
6/4/2013 254 NR NR ND 196 101 181 59 7.2 43.2 66.8 12.3 ND 407 470 190 1,356 NR NR NR NR NR NR
8/28/2014 742 <2.5 <1.0 <2.5 153 72.1 162 160 10.2 33.9 220 18.2 <5.0 1,230 322 165 1,557 NA NA NA NA NA NA
3/17/2016 138 <0.5 1.7J <0.5 22.5 37.1 24.3 34.8 2.1 5 32.1 4.4 <1.0 261 32.6 22 239 NA NA NA NA NA NA
04/04/2019 1,800 <10.0 <20.0 <10.0 202 168 251 516 28.1 <10.0 500 <10.0 <10.0 4,000 754 223 3,860 NA NA NA NA NA NA
10/16/2019 117 1 1.1 <0.35 15.6 <0.23 17.8 25.7 1.5 3.1 25.8 <0.24 <0.23 42.6 23.5 <0.23 121.5 NA NA NA NA NA NA
04/29/2020 895 <4.4 <7.3 <4.4 88.6 25.9 94.3 411 23.1 <5.6 377 <3.0 <2.9 1,090 472 <2.8 3,080 NA NA NA NA NA NA
5/6/2021 <0.34 <0.49 <0.65 <0.35 1.8 <0.27 <0.31 <0.30 <0.33 <0.42 <0.64 <0.34 <0.29 <0.48 <0.50 <0.33 <0.34 NA NA NA NA NA NA
11/15/2022 37.7 0.54 <0.65 <0.35 7.2 <0.27 6.8 <0.30 0.99 1.1 <0.64 1.3 <0.29 19.5 8.1 5.3 66.9 NA NA NA NA NA NA
2/12/2010 ND NR NR ND ND ND 0.68 ND ND ND ND ND ND ND 2.3 0.91 2.5 3.1J 171 ND ND ND ND
6/5/2012 ND NR NR ND ND ND ND ND ND ND ND ND ND ND ND ND ND NR NR NR NR NR NR
6/4/2013 ND NR NR ND ND ND ND ND ND 0.32J ND ND ND ND ND ND ND NR NR NR NR NR NR
8/28/2014 <0.25 <0.25 <1.0 <0.25 <0.25 <0.25 <0.25 <0.25 <0.25 2.2 <1.0 <0.25 <0.5 <0.25 <0.25 <0.25 <0.5 NA NA NA NA NA NA
3/17/2016 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 0.56 <0.5 0.82 <1.0 <0.5 <1.0 <0.5 0.48J <0.5 0.85J NA NA NA NA NA NA
3/7/2018 <0.5 <0.5 <1.0 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 0.64 <2.0 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 NA NA NA NA NA NA
4/4/2019 <0.25 <0.25 <0.50 <0.25 <0.25 <0.25 <0.25 <0.25 <0.25 0.47J <1.0 <0.25 <0.25 <0.25 <0.25 <0.25 <0.25 NA NA NA NA NA NA
4/29/2020 <0.24 <0.35 <0.58 <0.35 <0.26 <0.23 <0.33 <0.24 <0.24 0.74 <0.66 <0.24 <0.23 <0.23 <0.19 <0.23 <0.24 NA NA NA NA NA NA
5/6/2021 <0.34 <0.49 <0.65 <0.35 <0.32 <0.27 <0.31 <0.30 <0.33 0.60 <0.64 <0.34 <0.29 <0.48 <0.50 <0.33 <0.34 NA NA NA NA NA NA
11/15/2022 <0.34 <0.49 <0.65 <0.35 <0.32 <0.27 <0.31 <0.30 <0.33 0.47J <0.64 <0.34 <0.29 <0.48 <0.50 <0.33 <0.34 NA NA NA NA NA NA
2/12/2010 0.64 NR NR ND ND ND ND 10 0.92 ND 2 1.5 ND 8.3 21.5 8.4 72.7 ND ND 340 ND ND ND
6/5/2012 ND NR NR ND ND ND ND ND ND ND ND ND ND ND ND ND ND NR NR NR NR NR NR
6/4/2013 ND NR NR ND ND ND ND ND ND ND ND ND ND ND ND ND ND NR NR NR NR NR NR
8/28/2014 <0.25 8.8 <1.0 <0.25 <0.25 <0.25 <0.25 <0.25 <0.25 <0.25 <1.0 <0.25 <0.5 4.7 7.5 113 413.9 NA NA NA NA NA NA
3/17/2016 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 2 <0.5 <0.5 <1.0 <0.5 <1.0 <0.5 7.8 9.6 39.1 NA NA NA NA NA NA
3/7/2018 <0.5 <0.5 <1.0 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <2.0 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 NA NA NA NA NA NA
10/17/2018 <0.25 <0.25 <0.5 <0.25 <0.25 <0.25 <0.25 <0.25 <0.25 <0.25 <1.0 <0.25 <0.25 <0.25 <0.25 <0.25 <0.25 NA NA NA NA NA NA
5/6/2021 <0.34 <0.49 <0.65 <0.35 <0.32 <0.27 <0.31 <0.30 <0.33 <0.42 <0.64 <0.34 <0.29 <0.48 <0.50 <0.33 <0.34 NA NA NA NA NA NA
9/29/2022 <0.34 <0.49 <0.65 <0.43 <0.32 <0.27 <0.31 <0.30 <0.33 <0.42 <0.64 <0.34 <0.29 <0.48 <0.50 <0.33 <1.05 NA NA NA NA NA NA
2/12/2010 ND NR NR ND ND ND 0.5 ND ND ND ND ND ND ND 0.52 ND ND ND ND ND ND ND ND
6/5/2012 ND NR NR ND ND ND ND ND ND ND ND ND ND ND ND ND ND NR NR NR NR NR NR
6/4/2013 ND NR NR ND 0.38J ND ND ND ND ND ND ND ND ND ND ND ND NR NR NR NR NR NR
3/17/2016 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <1.0 <0.5 <1.0 <0.5 <0.5 <0.5 <0.5 NA NA NA NA NA NA
3/7/2018 <0.5 <0.5 <1.0 <0.5 0.26J <0.5 <0.5 <0.5 <0.5 <0.5 <2.0 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 NA NA NA NA NA NA
10/17/2018 <0.25 <0.25 <0.5 <0.25 <0.25 <0.25 <0.25 <0.25 <0.25 <0.25 <1.0 <0.25 <0.25 <0.25 <0.25 <0.25 <0.25 NA NA NA NA NA NA
10/16/2019 <0.24 <0.35 <0.58 <0.35 <0.24 <0.23 <0.33 <0.24 <0.24 <0.44 <0.66 <0.24 <0.23 <0.23 <0.19 <0.23 <0.24 NA NA NA NA NA NA
2/12/2010 ND NR NR ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
6/5/2012 ND NR NR ND ND ND ND ND ND ND ND ND ND ND ND ND ND NR NR NR NR NR NR
6/4/2013 ND NR NR ND ND ND ND ND ND ND ND ND ND ND ND ND ND NR NR NR NR NR NR
8/28/2014 <0.25 <0.25 <1.0 <0.25 <0.25 <0.25 <0.25 <0.25 <0.25 <0.25 <1.0 <0.25 <0.5 <0.25 <0.25 <0.25 <0.5 NA NA NA NA NA NA
9/29/2022 <0.34 <0.49 <0.65 <0.43 <0.32 <0.27 <0.31 <0.30 <0.33 <0.42 <0.64 <0.34 <0.29 <0.48 <0.50 <0.33 <1.05 NA NA NA NA NA NA
2/12/2010 ND NR NR ND ND ND ND ND ND 1.0 ND ND ND ND ND ND ND ND ND ND ND ND ND
6/5/2012 ND NR NR ND ND ND ND ND ND ND ND ND ND ND ND ND ND NR NR NR NR NR NR
6/4/2013 ND NR NR ND ND ND ND ND ND ND ND ND ND ND ND ND ND NR NR NR NR NR NR
8/28/2014 <0.25 <0.25 <1.0 <0.25 <0.25 <0.25 <0.25 <0.25 <0.25 <0.25 <1.0 <0.25 <0.5 <0.25 <0.25 <0.25 <0.5 NA NA NA NA NA NA
2/12/2010 ND NR NR ND 9.20 0.62 9.6 ND ND 1.5 NR ND ND NR ND ND ND NR NR NR NR NR NR
8/28/2014 2.8 <0.25 <1.0 <0.25 0.78 <0.25 1.4 1.4 0.25J 0.68 4.1 0.27J <0.5 <0.25 3.9 0.97 13.1 NA NA NA NA NA NA
5/6/2021 <0.34 <0.49 <0.65 <0.35 <0.32 <0.27 <0.31 <0.30 <0.33 <0.42 <0.64 <0.34 <0.29 <0.48 <0.50 <0.33 <0.34 NA NA NA NA NA NA
9/29/2022 1.3 <0.49 <0.65 <0.43 0.76 <0.27 0.81 0.45J <0.33 <0.42 4.4 <0.34 <0.29 <0.48 <0.50 <0.33 2.1 NA NA NA NA NA NA
3/7/2018 <0.25 <0.25 <1.0 <0.25 0.46J <0.5 <0.5 <0.5 <0.5 <0.5 <2.0 <0.5 <0.5 0.70 <0.5 <0.5 <0.5 NA NA NA NA NA NA
9/29/2022 <0.34 <0.49 <0.65 <0.43 0.71 <0.27 <0.31 <0.30 <0.33 <0.42 <0.64 <0.34 <0.29 <0.48 <0.50 <0.33 <1.05 NA NA NA NA NA NA
8/28/2014 <0.25 <0.25 <1.0 <0.25 <0.25 <0.25 <0.25 <0.25 <0.25 <0.25 <1.0 <0.25 <0.5 <0.25 <0.25 <0.25 <0.5 NA NA NA NA NA NA
9/29/2022 <0.34 <0.49 <0.65 <0.43 <0.32 <0.27 <0.31 <0.30 <0.33 <0.42 <0.64 <0.34 <0.29 <0.48 <0.50 <0.33 <1.05 NA NA NA NA NA NA
8/28/2014 <0.25 <0.25 <1.0 <0.25 <0.25 <0.25 <0.25 <0.25 <0.25 <0.25 <1.0 <0.25 <0.5 <0.25 <0.25 <0.25 <0.5 NA NA NA NA NA NA
3/17/2016 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 1.8 <1.0 <0.5 <1.0 <0.5 <0.5 <0.5 <0.5 NA NA NA NA NA NA
3/7/2018 <0.25 <0.25 <1.0 <0.25 <0.5 <0.5 <0.5 <0.5 <0.5 2.4 <2.0 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 NA NA NA NA NA NA
8/28/2014 <0.25 <0.25 <1.0 <0.25 <0.25 <0.25 <0.25 <0.25 <0.25 <0.25 <1.0 <0.25 <0.5 <0.25 <0.25 <0.25 <0.5 NA NA NA NA NA NA
3/7/2018 <0.25 <0.25 <1.0 <0.25 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <2.0 <0.5 0.26J <0.5 <0.5 <0.5 <0.5 NA NA NA NA NA NA
10/17/2018 <0.25 <0.25 <0.5 <0.25 <0.25 <0.020 <0.25 <0.25 <0.25 <0.25 <1.0 <0.25 <0.25 <0.25 <0.25 <0.25 <0.25 NA NA NA NA NA NA
8/28/2014 <0.25 <0.25 <1.0 <0.25 <0.25 <0.25 <0.25 <0.25 <0.25 <0.25 <1.0 <0.25 <0.5 <0.25 <0.25 <0.25 <0.5 NA NA NA NA NA NA
9/29/2022 <0.34 <0.49 <0.65 <0.43 <0.32 <0.27 <0.31 <0.30 <0.33 <0.42 <0.64 <0.34 <0.29 <0.48 <0.50 <0.33 <1.05 NA NA NA NA NA NA
Notes
Groundwater results reported in micrograms per liter (µg/L).
ND - not detected (Detection limits are unknown for sampling conducted prior to Terracon's involvement with the site.)
<- less than method detection limit
J - estimated values.
NA - not analyzed.
NR - not reported.
NE - standard not established.
Bold - levels above the 2L standard.
Bold and yellow shading - levels above GCLs
6200B MADEP VPH
C9-C22 AromaticsWSW-7 Chloroethane1,2-Dibromoethane (EDB)NaphthaleneAnalytical Method
BenzeneEthylbenzeneIsopropylbenzeneChloroformn-Butylbenzene1,2-DichloroethaneDilsopropyl Ether (DIPE)Contaminant of Concern →LeadC19-C36 AliphaticsC9-C18 AliphaticsC5-C8 Aliphaticsn-PropylbenzeneXylenes (Total)1,3,5-Trimethylbenzenebis(2-ethylhexyl)phthalateToluene1,2,4-TrimethylbenzeneMethyl-tert-butyl etherTetrachloroetheneWSW-6
WSW-1
WSW-3
WSW-4
WSW-5
MW-6
MW-5
2L Standard (ug/L)
GCL (ug/L)
MW-1
MW-2
MW-4
MW-3
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