RA-517_3274_CA_MRP_20191021-compressed

October 21, 2019

Mr. Mark Petermann
NCDEQ, Division of Waste Management, UST Section
1646 Mail Service Center
Raleigh, North Carolina 27699-1646

Reference: Environmental Services Report – Petro Mart #4
11455 NC Highway 15/501 North
Chapel Hill, Chatham County, North Carolina
NCDEQ Incident: TF-3274
NCDEQ Contract: N17006
ECS Project: 49:6230-C

Dear Mr. Petermann:

As authorized by your acceptance of ECS Southeast, LLP (ECS) Task Authorization Request #4
dated June 19, 2019; ECS has completed the Environmental Services Report for the above-
referenced site. Included in this report is a description of the field activities, the results obtained,
and our conclusions and recommendations.

ECS appreciates the opportunity to provide our environmental consulting services to you on this
project. If you have any questions concerning this report or this project, please contact us.

Sincerely,

ECS SOUTHEAST, LLP

Samantha M. Szakasits, G.I.T. Matthew Gillis
Assistant Staff Project Manager Senior Environmental Project Manager
[e-mail] [e-mail]
[phone] [phone]

Roger A. Smith, P.G.
Principal Geologist
NC License No. 1724
[e-mail]
[phone]

Environmental Services Report – Petro Mart #4
11455 NC Highway 15/501 North
Chapel Hill, Chatham County, North Carolina
NCDEQ Incident: TF-3274
NCDEQ Contract: N17006
ECS Project: 49:6230-C

1

SITE INFORMATION

Facility I.D.: #0-224946
UST Incident No.: TF-3274
Site Rank: H210A
Land Use Category: Commercial

Site Name and Location: Petro Mart #4
11455 NC Highway 15/501 North
Chapel Hill, Chatham County, North Carolina

Parcel Identification Number: 9776-23-9124

Latitude and Longitude: 35.846815 North, -79.091187 West
Contacts

Property Owner: Jean Williams
PO Box 429
Carrboro, North Carolina 27510
[phone]

Property Owner Legal Representative: Benjamin D. Overby
522 South Lexington Ave.
Burlington, NC 27216-2958
[phone]

Consultant: ECS Southeast, LLP
9001 Glenwood Avenue
Raleigh, North Carolina 27617
[phone]
Attn: Matthew Gillis

Laboratory: Con-Test Analytical Laboratory
39 Spruce Street
East Longmeadow, MA 01028
[phone]
NC Certification No. 652

Environmental Services Report – Petro Mart #4
11455 NC Highway 15/501 North
Chapel Hill, Chatham County, North Carolina
NCDEQ Incident: TF-3274
NCDEQ Contract: N17006
ECS Project: 49:6230-C

3

EXECUTIVE SUMMARY

The subject site is known as the Petro Mart #4 site and is located at 11455 NC Highway 15/501
North in Chapel Hill, Chatham County, North Carolina (Figure 1 and Figure 2). The subject site
is further identified by Chatham County Geographic Information Systems (GIS) Parcel
Identification Number (PIN) 9776-23-9124.

INCIDENT RISK EVALUATION SUMMARY
SOURCE INFORMATION
Source, Date, and Nature of Release
1 x 2,000-gallon UST (kerosene), 1 x 3,000-gallon UST
(diesel), 1 x 6,000-gallon (gasoline), and 2 x 8,000-gallon
USTs (gasoline) – removed March 7, 2001
Each Known Source Removed? Yes – 5 USTs removed in March 7, 2001
Additional Sources Likely Present?
Yes – current USTs – 1 x 12,000-gallon UST (gasoline), 1
x 8,000-gallon UST (gasoline), and 1 x 6,000-gallon UST
(diesel)
Known Sources Assessed (USTs, Piping,
Dispensers)? Yes
FREE PRODUCT
Free Product Present? Currently, no. Historically, yes in MW-3
SITE SOIL CONDITIONS
TPH Soil Data Available? Maximum
concentration at site
Unknown

Risk-Based Soil Data Available? Yes
Maximum Soil Contaminant Concentrations Aliphatics (C9-C12) at 3,080 mg/kg from SS-5B (2018)
Current Extent of Soil Impact Delineated? Yes
SITE GROUNDWATER CONDITIONS
Average Depth to Groundwater? Approx. 30 feet below top of casing (btoc)
Contaminants Present Above NC2L? Yes (Monitoring wells MW-1 through MW-4 and MW-12)
Contaminants Present Above GCLs? Yes (Monitoring well MW-3)
Groundwater Plume Delineated? Yes
Groundwater Plume Migrated Off-Site? No
Contaminant Level Trend Stable / Decreasing
RECEPTOR INFORMATION
Date of Most Current Receptor Survey August 10, 2015
Potable Water-Supply Wells within 1,000’? Yes – see section on water supply well information
Water Available to Properties within 1,000’? Yes
Non-Potable Wells within 250’? No
Site within Wellhead Protection Area? No
Surface Water Bodies within 500’? No
REMEDIAL ACTIVITIES
Remedial activities conducted? O-Sox Remedial Device Deployment and AFVR’s
VAPOR INTRUSION
Dissolved Contaminants exceeding
Groundwater Screening Levels for Vapors
present within 5’ of Ground Surface?
No
Occupied Structures on the Site? Yes, Active Gas Station

Environmental Services Report – Petro Mart #4
11455 NC Highway 15/501 North
Chapel Hill, Chatham County, North Carolina
NCDEQ Incident: TF-3274
NCDEQ Contract: N17006
ECS Project: 49:6230-C

4

On September 24 and 25, 2019, Quantex, on behalf of ECS, installed four Type II groundwater
monitoring wells: MW-9 through MW-12. Monitoring wells MW-9 and MW-10 were installed at
5186 Manns Chapel Road south of the subject site and monitor wells MW-11 and MW-12 were
installed as deeper wells that are screened 10 to 15 feet deeper than adjacent wells.

On October 1, 2019, ECS collected a field blank and groundwater samples from monitoring
wells MW-1 through MW-12. ECS additionally contracted with KCI to professionally survey and
tie in the four (4) newly installed monitoring wells to the existing monitoring wells.

Laboratory analysis reported benzene at a concentration above its Gross Contamination Level
(GCL) in monitoring well MW-3. Laboratory analysis reported several additional targeted analytes
at concentrations above their respective North Carolina 2L Groundwater Quality Standard
(NC2LGWQS) but below their respective GCL in the groundwater sample collected from
monitoring well MW-3. Laboratory analysis reported several targeted analytes at concentrations
above their respective NC2LGWQS but below their respective GCL in the groundwater samples
collected from monitoring wells MW-1, MW-2, MW-4, and MW-12. Laboratory analysis reported
several targeted analytes at concentrations above the laboratory reporting limits but below their
respective NC2LGWQS in the groundwater samples collected from monitoring wells MW-1, MW-
2, MW-3, MW-4, MW-7, MW-8, MW-9, MW-10, MW-11, and MW-12.

Based on the results of this Environmental Services Report, ECS concludes the following:

 Based on the survey data, the groundwater flow direction is generally to the east below the
site.

 Laboratory analysis detected benzene at a concentration above its GCL in the groundwater
sample collected from monitoring well MW-3. Since conducting the February 2019 AFVR
event, free product has not been observed in the monitoring well since the past three
sampling events and the concentration of benzene has decreased significantly.

 Laboratory analysis detected several targeted analytes above their respective NC2LGWQS,
but did not exceed their respective GCL in monitoring wells MW-1, MW-2, MW-3, MW-4,
and MW-12.

 Groundwater flow direction is generally to the east and water supply well WSW-1 is located
approximately 380 feet west of the site; therefore, ECS considers WSW-1 unlikely to be
impacted by the onsite petroleum-related contamination.

Based on the conclusions of this Environmental Services Report, ECS recommends the
following:

 Conducting an AFVR event on monitoring well MW-3 and MW-12 in an effort to reduce
petroleum-related compounds detected above their respective GCLs and conduct a
groundwater sampling event approximately three to five weeks after the AFVR event to
assess its efficiency.

 Contacting AQUA and inform them, ECS is contracted by the NCDEQ to perform
Environmental Services Report – Petro Mart #4
11455 NC Highway 15/501 North
Chapel Hill, Chatham County, North Carolina
NCDEQ Incident: TF-3274
NCDEQ Contract: N17006
ECS Project: 49:6230-C

5

environmental site assessments at the Petro Mart site and would like to request laboratory
analytical data for water supply well WSW-1 as well as any additional information regarding
the well such as the total well depth, screen interval, gallons per minute output, and usage.

 Conduct a Fate and Transport Modeling event to determine if the dissolved contaminant
plume could impact the nearest water supply well (WSW-1).

Environmental Services Report – Petro Mart #4
11455 NC Highway 15/501 North
Chapel Hill, Chatham County, North Carolina
NCDEQ Incident: TF-3274
NCDEQ Contract: N17006
ECS Project: 49:6230-C

6

TABLE OF CONTENTS

1.0 SITE HISTORY ......................................................................................................... 7
2.0 SITE GEOLOGY AND HYDROGEOLOGY............................................................. 10
3.0 RECEPTOR INFORMATION .................................................................................. 10
4.0 FILE REVIEW .......................................................................................................... 11
5.0 FIELD ACTIVITIES ................................................................................................. 11
6.0 RESULTS ............................................................................................................... 13
7.0 CONCLUSIONS ...................................................................................................... 14
8.0 RECOMMENDATIONS ........................................................................................... 15

FIGURES
Figure 1 Site Location Map
Figure 2 Aerial Site Map
Figure 3 2018 Soil Sample Location Map
Figure 4 Water Supply Well Location Map
Figure 5 Monitoring Well Location Map
Figure 6 Groundwater Elevation Map
Figure 7 Pantry #294 Site Map
Figure 8 Groundwater Concentration Map
Figure 9 MTBE Isoconcentration Map
TABLES

Table 1 UST Information
Table 2 Summary of Historical Soil Sample Analytical Results
Table 3 Water Supply Well Survey
Table 4 Geochemical Measurements
Table 5 Monitoring Well Construction and Groundwater Elevation Details
Table 6 Summary of Current Groundwater Analytical Results
Table 7 Summary of Historical Groundwater Analytical Results

APPENDICIES

Appendix A Access Agreement
Appendix B ECS Personnel Field Notes and Sampling Data Sheets
Appendix C Monitoring Well Construction Records
Appendix D Site Photographs
Appendix E Laboratory Analytical Data Sheets and Chain of Custody (COC) Record
Appendix F Surveying Data
Environmental Services Report – Petro Mart #4
11455 NC Highway 15/501 North
Chapel Hill, Chatham County, North Carolina
NCDEQ Incident: TF-3274
NCDEQ Contract: N17006
ECS Project: 49:6230-C

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1.0 SITE HISTORY

The Petro Mart #4 site is located at 11455 NC Highway 15/501 North in Chapel Hill, Chatham
County, North Carolina (Figures 1 and 2). According to information provided to ECS by the North
Carolina Department of Environmental Quality (NCDEQ), the site is an active gasoline station that
formerly contained one 2,000-gallon kerosene UST, one 2,000-gallon diesel UST, one 6,000-
gallon gasoline UST, and two 8,000-gallon gasoline USTs. The site currently contains one 12,000-
gallon gasoline UST, one 8,000-gallon gasoline UST, and one 6,000-gallon diesel UST (Table 1).

In August 1986, a release of approximately 25-gallons of gasoline was reported on the site. In
October 1986, two monitoring wells (MW-1 and MW-2) were installed at the site to depths of 20
and 30 feet below ground surface (ft. bgs.). Laboratory analysis of soil samples collected from the
monitoring well borings did not report petroleum-related contamination. The monitoring wells were
determined to be dry and were not sampled.

In 1987, laboratory analysis of soil samples collected by the NCDEQ reported benzene at 8.6
milligrams per kilogram (mg/kg) and methyl-ethyl ketone (MEK) at 120 mg/kg; however, the
location of these soil borings is not known.

In September 1994, groundwater samples were collected from five off-site water supply wells.
Laboratory analysis of the groundwater samples reported methyl tert-butyl ether (MTBE) at 72
parts per billion (ppb) in the water supply well at the Park & Stay mobile home park (WSW-2)
located approximately 800 feet south of the subject site. Water-supply well WSW-2 has
subsequently been abandoned and the Cole Park Plaza Shopping Center has been constructed
at that location.

In February 1995, two monitoring wells were installed at the site. Monitoring well MW-1 was
installed adjacent to the current tank basin and monitoring well MW-2 was installed on the
southeast corner of the subject site. Laboratory analysis reported several targeted analytes at
concentrations above their respective North Carolina 2L Groundwater Quality Standards
(NC2LGWQS) in the groundwater samples collected from monitoring wells MW-1 and MW-2.

In March 2001, five USTs were removed from the site. A total of eight soil samples were collected
during closure activities. Laboratory analysis of seven of the eight soil samples reported total
petroleum hydrocarbons (TPH) above the NCDEQ UST Sections Action Levels of 10 milligrams
per kilogram (mg/kg). Monitoring wells MW-1 and MW-2 were abandoned.

In December 2008, a receptor survey was conducted for the site. At that time, the site consisted
of an active gasoline station (Petro Mart) and one 20,000-gallon compartmentalized UST
containing regular and premium gasoline and diesel. ECS could not determine the current status
of this UST. The receptor survey did not identify monitoring wells or water supply wells on the
subject site. The site was determined to utilize water obtained from water supply well WSW-1
located on an off-site property approximately 350 feet west and upgradient of the site. Water
supply well WSW-1 is owned by Aqua who indicated that water supply well WSW-1 is sampled
regularly for VOCs. Water supply well WSW-1 is approximately 410 feet deep, has a capacity of
60 gallons per minute (gpm), and has been in service since the late 1970s. Five additional water
supply wells (WSW-2, WSW-3, and WSW-5 through WSW-7) were identified within 1,000 feet of
the site. It was reported that these wells are inactive or have been abandoned.
Environmental Services Report – Petro Mart #4
11455 NC Highway 15/501 North
Chapel Hill, Chatham County, North Carolina
NCDEQ Incident: TF-3274
NCDEQ Contract: N17006
ECS Project: 49:6230-C

8

In April 2010, a review of the active UST system compliance records for the site was conducted.
According to a February 2009 compliance inspection, three new USTs were installed on the site in
May 2001 consisting of one 12,000-gallon gasoline, one 8,000-gallon gasoline, and one 6,000-
gallon diesel UST. The inspection identified five violations consisting of the following:

1) Failure to provide secondary containment on UST systems installed or replaced after May
1, 2000 near wells and surface waters (the UST system is located within 500 feet of a
public water supply well);
2) No leak detection for tanks;
3) Failure to conduct leak detection properly;
4) Failure to report a suspected release (weeps were reportedly observed beneath three of
the four dispensing pumps); and,
5) Failure to investigate a suspected release.

In the compliance record file, there was a response letter from the property owner (K&M Services,
Inc.) regarding to the compliance report. Included in the letter were line and ELD test results, tank
tightness testing results, copies of invoices for a continuous statistical leak detection system
installed in the existing tank monitoring device, an invoice for seven sensors installed in sump
pumps, and dispenser pans, and tank monitoring tapes. In addition, the letter indicates that all
weeps beneath the dispensers had been repaired and that old filters had been removed from the
containment sump. The 2010 compliance review report concluded that the UST system is in
compliance and that residual soil and groundwater contamination may be present in the areas of
the former UST pit and dispensing pumps. The report indicates that groundwater contamination
beneath the site may be originating from an adjoining leaking UST site (Pantry #294).

On April 15 and 16, 2015, ECS installed monitoring wells (MW-1 and MW-2) to depths of 55
and 54 ft. bgs, respectively. Monitoring wells MW-1 and MW-2 are located near the current UST
basin. ECS collected two soil samples from each monitoring well boring at depths of 3 to 5 ft
bgs (SS-1A and SS-2A) and 8 to 10 ft bgs (SS-1B and SS-2B). Soil samples SS-1A and SS-1B
were collected from the boring for monitoring well MW-1 and soil samples SS-2A and SS-2B
were collected from the boring for monitoring well MW-2. ECS also collected groundwater
samples from monitoring wells MW-1 and MW-2.

Laboratory analysis reported methylene chloride at a concentration above its Soil-to-Groundwater
Maximum Soil Contamination Concentration (MSCC) in the soil sample collected from SS-2A, as
shown on Table 2. Laboratory analysis reported MTBE and lead at concentrations above their
respective NC2LGWQS but below their respective Gross Contamination Levels (GCLs) in the
groundwater sample collected from monitoring well MW-1. Laboratory analysis reported benzene
and MTBE at concentrations above their respective NC2LGWQS but below their respective GCLs
in the groundwater sample collected from monitoring well MW-2.

On August 10-12, 2015, ECS installed four monitoring wells (MW-3 through MW-6) to depths
ranging from 46 to 52 ft. bgs. ECS collected groundwater samples from monitoring wells MW-1
and MW-2 and the four newly installed monitoring wells. On August 24, 2015, Bateman Civil
Survey surveyed the site monitoring wells. Laboratory analysis reported benzene and MTBE at
concentrations above their respective GCLs in the groundwater sample collected from monitoring
well MW-3, which is located adjacent to the former UST basin. Laboratory analysis reported
Environmental Services Report – Petro Mart #4
11455 NC Highway 15/501 North
Chapel Hill, Chatham County, North Carolina
NCDEQ Incident: TF-3274
NCDEQ Contract: N17006
ECS Project: 49:6230-C

9

several additional targeted analytes at concentrations above their respective NC2LGWQS but
below their respective GCLs in the groundwater samples collected from monitoring wells MW-1
through MW-6.

ECS conducted a receptor survey update for the subject site. ECS observed two water supply well
houses (WSW-1 and WSW-6) within 500 feet of the subject site and two water supply wells
(WSW-5 and WSW-7) within 1,000 feet of the subject site. ECS spoke with Ms. Shonda, a
representative of Aqua who confirmed that the subject site utilizes municipal water obtained from
the community water supply well (WSW-1) located approximately 350 feet west and
topographically upgradient of the site. Aqua also confirmed that the community water supply well
WSW-1 supplies water to the residences within Cedar Terrace. Water supply well WSW-1 is
maintained by Aqua who indicated that WSW-1 is sampled regularly for VOCs. ECS spoke with
Ms. Jean Williams, the owner of the properties associated with water supply wells WSW-5
through WSW-7, who confirmed that the water supply wells are active and are sampled regularly
by an unknown agent. ECS was not provided with laboratory reports from this testing.

On March 7, 2018, ECS collected groundwater samples from monitoring wells MW-1, MW-2,
MW-4, MW-5, and MW-6. Prior to sampling, ECS gauged each monitoring well for the presence
of free product. Free product was detected in monitoring well MW-3, and was therefore not
sampled. The samples collected were shipped to Con-Test Analytical Laboratory for analyses
for volatile organic compounds (VOCs) by SM 6200B. ECS subsequently deployed an O-Sox
remedial device in monitoring well MW-4. Laboratory analysis of the groundwater samples
collected from monitoring wells MW-1, MW-2, and MW-4 detected petroleum-related
hydrocarbons at concentrations that exceeded their respective NC2LGWQS, but did not exceed
their respective GCLs. The groundwater results show similar concentrations as previous
samplings events.

In November 2018, ECS contracted with Quantex to advance eight soil borings to collect 24
total soil samples at depths ranging from 12 to 20 ft. bgs for risk-based analysis along the
sidewalls of the investigate soil quality in the vicinity of the former UST basin (Table 2 and
Figure 3). ECS also installed two Type II groundwater monitoring wells: MW-7 and MW-8,
conducted a groundwater monitoring event, and deployed O-Sox remedial device in monitoring
well MW-4. Laboratory analysis detected benzene in monitoring well MW-3 at a concentration
above its respective GCL and other petroleum-related compounds were detected in monitoring
wells MW-1, MW-2, and MW-4, at concentrations exceeding their respective NC2LGWQS.
Laboratory analysis reported several targeted analytes at concentrations above their respective
Soil-to-Water MSCCs in several soil samples collected at the site.

On February 20, 2019, ECS contracted with Zebra Environmental & Industrial Services (Zebra)
to conduct an Aggressive Fluid and Vapor Recovery (AFVR) event at the site using monitoring
well MW-3 as an extraction point. On March 6, 2019, ECS collected a field blank and
groundwater samples from monitoring wells MW-1 through MW-8. ECS deployed an O-Sox
remedial device in monitoring well MW-3. Laboratory analysis reported benzene at a
concentration above its GCL in monitoring well MW-3. Laboratory analysis reported several
additional targeted analytes at concentrations above their respective NC2LGWQS but below their
respective GCL in the groundwater sample collected from monitoring well MW-3. Laboratory
analysis reported several targeted analytes at concentrations above their respective NC2LGWQS
but below their respective GCL in the groundwater sample collected from monitoring well MW-4.
Environmental Services Report – Petro Mart #4
11455 NC Highway 15/501 North
Chapel Hill, Chatham County, North Carolina
NCDEQ Incident: TF-3274
NCDEQ Contract: N17006
ECS Project: 49:6230-C

10

2.0 SITE GEOLOGY AND HYDROGEOLOGY

As determined from the USGS Topographic Map, Farrington, North Carolina Quadrangle dated
1993 (Figure 1), the site is at an approximate elevation of 550 feet above mean sea level.

The subject site is situated in the Piedmont Physiographic Province. The soils encountered in
this area are the residual product of in-place chemical weathering of rock presently underlying
the site and/or historic depositional events. In general, shallow unconfined groundwater
movement within the overlying soils is controlled largely by topographic gradients. However, as
the groundwater percolates downward, it becomes controlled by the subsurface geologic
conditions. Thus, the direction of groundwater movement in the deeper aquifers may not be
consistent with the reflecting topography.

In general, shallow unconfined groundwater movement within the overlying soils is controlled
largely by topographic gradients. Recharge occurs primarily by infiltration along higher
elevations and typically discharges into streams or other surface water bodies. The elevation of
the shallow water table is transient and can vary with seasonal fluctuations in precipitation.
Movement of shallow groundwater is generally from higher to lower elevations.

3.0 RECEPTOR INFORMATION

3.1 Water Supply Wells

On August 10, 2015, ECS conducted a receptor survey update for the subject site. ECS
observed two water supply well houses (WSW-1 and WSW-6) within 500 feet of the subject site
and two water supply wells (WSW-5 and WSW-7) within 1,000 feet of the subject site (Figure
4). ECS spoke with Ms. Shonda, a representative of Aqua who confirmed that the subject site
utilizes municipal water obtained from the community water supply well (WSW-1) located
approximately 350 feet west and topographically upgradient of the site. Aqua also confirmed
that the community water supply well WSW-1 supplies water to the residences within Cedar
Terrace. Water supply well WSW-1 is maintained by Aqua who indicated that WSW-1 is
sampled regularly for VOCs. ECS spoke with Ms. Jean Williams, the owner of the properties
associated with water supply wells WSW-5 through WSW-7, who confirmed that the water
supply wells are active and are sampled regularly by an unknown company. ECS was not
provided with laboratory reports from this testing. During the March 2019 and October 2019
sampling event, it appeared several residences west of the subject site appeared to be vacant
and/or abandoned. These vacant and/or abandoned residences were associated with water
supply wells WSW-5, WSW-6, and WSW-7; therefore, ECS assumes these water supply wells
are inactive.

3.2 Public Water Supplies

ECS contacted Chatham County Public Works Utilities and Water Division to inquire if
municipal water is available for the subject site and surrounding area. According to Chatham
County personnel and the Chatham County GIS website, municipal water supply lines are
located on Manns Chapel Road and NC Highway 15/501 which can supply municipal water to
the subject site and surrounding area. The commercial properties located east of the subject
Environmental Services Report – Petro Mart #4
11455 NC Highway 15/501 North
Chapel Hill, Chatham County, North Carolina
NCDEQ Incident: TF-3274
NCDEQ Contract: N17006
ECS Project: 49:6230-C

11

site and some residences south and west of the subject site are currently connected to the
municipal water supply.

3.3 Surface Water

As determined from the USGS Topographic Map, Farrington, North Carolina Quadrangle dated
1993 (Figure 1), the site is at an approximate elevation of 550 feet above mean sea level.
Surface runoff on the site is generally to the southeast.

3.4 Subsurface Structures

ECS did not identify subsurface structures associated with the subject site other than
underground utilities such as municipal water/sewer and fiber optic lines.

3.5 Land Use

The subject site is developed with a commercial property and currently operates as a convenience
store and gasoline station. The surrounding area is a mixture of residential and commercial
properties.

3.6 Property Owners and Occupants

The Chatham County GIS website was utilized to identify the adjacent property owners. The
names and addresses of the owners of adjacent properties and properties located within 500 feet
of the site are shown on Table 3.

4.0 FILE REVIEW

A separate leaking gasoline UST site, identified as “the Pantry #294” (Incident #22718) (Facility
ID #0-021416) is located across Manns Chapel Road, approximately 270 feet south from the
subject site. ECS obtained and reviewed the Withers and Ravenel (WR) May 2013
Groundwater Monitoring Report and found that WR concluded that several VOCs were
identified above their respective NC2LGWQS. WR reported, “The most concentrated
contaminant area appears to be around MW-3. MW-3 and deep well MW-4 were the only wells
with contaminants exceeding 15A NCAC 2L groundwater standards.” Additionally, no analyzed
VOCs were detected above their respective GCL. As shown in Figure 7, off-site monitoring
wells MW-3 and deep well MW-4 associated with the Pantry #294 site are located near the
eastern portion of the adjacent site. ECS determined that it is unlikely that the current and
former USTs located at the Pantry #294 have impacted the subject site based on the eastern
plume delineation.

5.0 FIELD ACTIVITIES

5.1 Pre-assessment Activities

Prior to the drilling activities, ECS mailed an access agreement to Mr. Leon Chaplin Jr.’s
requesting permission to installed two monitoring wells on his property south of the subject site
Environmental Services Report – Petro Mart #4
11455 NC Highway 15/501 North
Chapel Hill, Chatham County, North Carolina
NCDEQ Incident: TF-3274
NCDEQ Contract: N17006
ECS Project: 49:6230-C

12

at 5186 Manns Chapel Road. ECS additionally made several attempts to contact Mr. Chaplin.
ECS obtained an access agreement to install two monitoring wells on Mr. Chaplin’s property
after speaking with him on the phone and explaining our proposed scope of work. The signed
access agreement in included in Appendix A. ECS also attempted to call Mr. Benjamin Overby,
the property owner’s legal representative of the subject site, three times and left a message
informing him of our scope of work and schedule; however, ECS did not receive a return phone
call.

5.2 Public and Private Utility Clearance

Prior to commencing with field activities, ECS contacted 811 to locate/mark public utilities at the
site. ECS additionally contracted with KCI to locate/mark private underground utilities at the
site. Required separation distances between subsurface activities and marked utilities (typically
30-inches) were maintained during the field activities. Required separation distances between
subsurface activities and marked utilities (typically 30-inches) were maintained during the field
activities.

5.3 Monitoring Well Installation

On September 24 and 25, 2019, Quantex, on behalf of ECS, installed four Type II groundwater
monitoring wells: MW-9 through MW-12. Monitoring wells MW-9 and MW-10 were installed at
5186 Manns Chapel Road south of the subject site. Monitoring wells MW-11 and MW-12 were
installed near of monitoring wells MW-4 and MW-7, respectively and were installed and
screened deeper. Monitoring well construction details and groundwater level data is
summarized in Table 5 and the locations of site monitoring wells are shown on Figure 5.

The four monitoring wells were installed using solid stem augers. Drilling with solid stem augers
involves rotating a continuous stem of augers into the ground to a depth of 50 and 70 feet,
respectively. As drilling advances, the soil cuttings are removed by the rotating auger. Prior to
advancing the boring, the down hole equipment and drill rig were decontaminated using high
pressure steam cleaner and municipal water.

The four Type II monitoring wells were constructed with 2-inch schedule 40 PVC flush threaded
screen and casing. The PVC screen and casing was lowered into the open borehole of
monitoring wells MW-9 and MW-10 to a depth of 50 ft. bgs. A 20-foot length of 0.01-inch slotted
well screen with a threaded bottom plug was installed to a depth such that the screened interval
intersected the estimated groundwater surface, as encountered during drilling activities for
monitoring wells MW-9 and MW-10. Whereas for monitoring wells MW-11 and MW-12, the
PVC screen and casing was lowered into the open boreholes to a depth of 69 and 66 ft. bgs.,
respectively, instead of the drilled depth of 70 ft. bgs due to the borehole sidewalls collapsing. A
10-foot length of 0.01-inch slotted well screen with a threaded bottom plug was installed to a
depth such that the screened interval was submerged to an intermediate depth as previously
discussed and instructed by NCDEQ. The solid section of PVC casing was placed above the
screened interval and extended to a point just below the ground surface. The annular space
around the well screens was filled with washed and graded medium sand to approximately 2-
feet above the top of the well screen. A minimum two-foot thick seal of bentonite pellets was
paced above the sand pack and allowed to hydrate before backfilling the remaining borehole
Environmental Services Report – Petro Mart #4
11455 NC Highway 15/501 North
Chapel Hill, Chatham County, North Carolina
NCDEQ Incident: TF-3274
NCDEQ Contract: N17006
ECS Project: 49:6230-C

13

annulus with a bentonite/neat cement mixture. The top of the well casings were equipped with a
lockable, water tight well plug and a flush mounted protective steel cover. ECS personnel field
notes and boring logs are included in Appendix B. Monitoring well construction diagram and
NCDEQ Well Construction Records are included in Appendix C.

Following installation completion, monitoring wells MW-9 through MW-12 were developed on
September 25, 2019. The wells were developed to remove the sand, silt, and other fine
sediments that may have entered the wells during construction.

5.4 Groundwater Sampling

On October 1, 2019, ECS collected a field blank and groundwater samples from monitoring
wells MW-1 through MW-12 (Figure 5). Purging and sampling of monitoring wells were
accomplished using a disposable bailer. ECS collected geochemical measurements at each
well for each well volume purged using a YSI-556 multi-parameter meter. Geochemical
measurements are shown in Table 4. Groundwater Monitoring Well Sampling Data sheets and
personnel field notes are provided in Appendix B. Site Photographs are included in Appendix D.

After purging the well, the groundwater samples were transferred into sample containers provided
by the laboratory. The sample containers were labeled with ECS project number, sample
identification, sample date and time, and requested analytical analysis. The containers were
placed into protective packaging material and placed into a cooler with ice to maintain the
samples at approximately 4 Celsius (C). The samples were submitted to Con-test Analytical
Laboratory located in East Longmeadow, MA for chemical analysis for VOCs using Standard
Method 6200B. ECS maintained proper COC procedures throughout the sample collection and
transportation process. Copies of the COC are included in Appendix E.

6.0 RESULTS

6.1 Groundwater Flow Direction

On October 1, 2019, ECS contracted with KCI to conduct a professional survey of the top of
casing measurements for the four (4) newly installed monitoring wells (MW-9 through MW-12)
and tie in with the top of casing elevation data for the eight (8) previously existing monitoring
wells (MW-1 through MW-8). The surveying data collected provided by KCI is included in
Appendix F. ECS measured the depth to groundwater in each of the wells (Table 5) and used
this data to calculate groundwater flow direction.

The calculated groundwater flow direction is generally to the east below the site as determined
by the site monitoring wells. A potentiometric flow map for the subject site is depicted as Figure
6. A 2013 potentiometric flow map for the adjacent Pantry #294 site (Figure 7) depicts
groundwater flow northeast.

6.2 Groundwater Sampling Results

Laboratory analysis reported benzene at a concentration above its GCL in monitoring well MW-3.
Laboratory analysis reported several additional targeted analytes at concentrations above their
Environmental Services Report – Petro Mart #4
11455 NC Highway 15/501 North
Chapel Hill, Chatham County, North Carolina
NCDEQ Incident: TF-3274
NCDEQ Contract: N17006
ECS Project: 49:6230-C

14

respective NC2LGWQS but below their respective GCL in the groundwater sample collected from
monitoring well MW-3.

Laboratory analysis reported several targeted analytes at concentrations above their respective
NC2LGWQS but below their respective GCL in the groundwater samples collected from
monitoring wells MW-1, MW-2, MW-4, and MW-12.

Laboratory analysis reported several targeted analytes at concentrations above the laboratory
reporting limits but below their respective NC2LGWQS in the groundwater samples collected from
monitoring wells MW-1, MW-2, MW-3, MW-4, MW-7, MW-8, MW-9, MW-10, MW-11, and MW-
12.

Laboratory analysis reported acetone and ethanol at a concentrations above the laboratory
reporting limits but below their respective NC2LGWQS in the field blank. The concentrations were
denoted with a J-Flag, which is an estimated concentration; therefore, ECS considers these
detections to be laboratory contaminants and not representative of the current site groundwater
conditions.

Laboratory analysis did not report targeted analytes above the laboratory reporting limits in the
groundwater samples collected from monitoring wells MW-5 and MW-6.

A summary of the current groundwater laboratory analytical results is included in Table 6 and
depicted on Figure 8. Historical analytical data from groundwater assessment is included in Table
7. The laboratory data sheets and COC are included in Appendix E. Using the laboratory
analytical results of the groundwater samples collected from the monitoring wells, an
isoconcentration map showing the horizontal extent for MTBE is included as Figure 9.

7.0 CONCLUSIONS

Based on the results of this Environmental Services Report, ECS concludes the following:

 Based on the survey data, the groundwater flow direction is generally to the east below the
site.

 Laboratory analysis detected benzene at a concentration above its GCL in the groundwater
sample collected from monitoring well MW-3. Since conducting the previous AFVR event,
free product has been has not been observed in the monitoring well since the past three
sampling events and the concentration of benzene has decreased significantly.

 Laboratory analysis detected several targeted analytes above their respective NC2LGWQS,
but did not exceed their respective GCL in monitoring wells MW-1, MW-2, MW-3, MW-4,
and MW-12.

 Groundwater flow direction is generally to the east and water supply well WSW-1 is located
approximately 380 feet west of the site; therefore, ECS considers WSW-1 unlikely to be
impacted by the onsite petroleum-related contamination.

Environmental Services Report – Petro Mart #4
11455 NC Highway 15/501 North
Chapel Hill, Chatham County, North Carolina
NCDEQ Incident: TF-3274
NCDEQ Contract: N17006
ECS Project: 49:6230-C

15

8.0 RECOMMENDATIONS

Based on the findings of this Environmental Services Report, ECS recommends the following:

 Conducting an AFVR event on monitoring well MW-3 and MW-12 in an effort to reduce
petroleum-related compounds detected above their respective GCLs and conduct a
groundwater sampling event approximately three weeks after the AFVR event to assess its
efficiency.

 Contacting AQUA and inform them, ECS is contracted by the NCDEQ to perform
environmental site assessments at the Petro Mart site and would like to request laboratory
analytical data for water supply well WSW-1 as well as any additional information regarding
the well such as the total well depth, screen interval, gallons per minute output, and usage.

 Conduct a Fate and Transport Modeling event to determine if the dissolved contaminant
plume could impact the nearest water supply well (WSW-1).

FIGURES

SOURCE:
USGS TOPOGRAPHIC MAP
FARRINGTON
NC QUADRANGLE
DATED 1993
SCALE: 1 : 24,000
FIGURE 1
SITE LOCATION MAP
PETRO MART #4
11455 NC HWY 15/501 NORTH
CHAPEL HILL, CHATHAM COUNTY,
NORTH CAROLINA
NCDEQ INCIDENT: TF-3274
ECS PROJECT: 49:6230-C
SITE
FIGURE 2
AERIAL SITE MAP
PETRO MART #4
11455 NC HIGHWAY 15/501 NORTH
CHAPEL HILL, CHATHAM COUNTY,
NORTH CAROLINA
NCDEQ INCIDENT: TF-3274
ECS PROJECT: 49:6230-C
SOURCE:
CHATHAM COUNTY GIS
DATED 2013
SCALE AS SHOWN
Scale: 1 inch = 170 feet
SITE
COMMERCIAL
SINGLE-FAMILY
RESIDENCES
SINGLE-FAMILY
RESIDENCES
THE PANTRY #294
LEGEND
Approximate Location of Monitoring Well
Approximate Location of Soil Sample Boring
Approximate Location of Former USTs
Approximate Location of Current USTs
SOURCE:
CHATHAM COUNTY GIS
DATED 2017
SCALE AS SHOWN
FIGURE 3
2018 SOIL SAMPLE LOCATION MAP
PETRO MART #4
11455 NC HIGHWAY 15/501 NORTH
CHAPEL HILL, CHATHAM COUNTY,
NORTH CAROLINA
NCDEQ INCIDENT: TF-3274
ECS PROJECT: 49:6230-C
Scale: 1 inch = 60 feet
MW-1
MW-2
MW-5MW-6
MW-3 MW-4
MW-7
MW-8
MW-1
SS-1
MW-6
MW-5
MW-8
MW-7
MW-4
MW-1
MW-2
MW-3
SS-1SS-2
SS-11SS-10
SS-8SS-9
SS-3SS-4SS-5
SS-7
SS-6
SS-12
SOURCE:
CHATHAM COUNTY GIS
DATED 2017
SCALE AS SHOWN
FIGURE 4
WATER SUPPLY WELL LOCATION MAP
PETRO MART #4
11455 NC HIGHWAY 15/501 NORTH
CHAPEL HILL, CHATHAM COUNTY,
NORTH CAROLINA
NCDEQ INCIDENT: TF-3274
ECS PROJECT: 49:6230-C
Scale: 1 inch = 400 feet
LEGEND
Approximate Location of Active Water Supply Well
Approximate Location of Inactive Water Supply Well
Approximate Location of Fire Hydrant
WSW-1
500 ft.
Radius
1,000 ft.
Radius
SITE
WSW-1
WSW-6
WSW-7
WSW-5
WSW-5
SOURCE:
CHATHAM COUNTY GIS
DATED 2013
SCALE AS SHOWN
FIGURE 5
MONITORING WELL LOCATION MAP
PETRO MART #4
11455 NC HIGHWAY 15/501 NORTH
CHAPEL HILL, CHATHAM COUNTY,
NORTH CAROLINA
NCDEQ INCIDENT: TF-3274
ECS PROJECT: 49:6230-C
Scale: 1 inch = 80 feet
MW-1
MW-2
LEGEND
Approximate Location of Monitoring Well
Approximate Location of Former USTs
Approximate Location of Current USTs
MW-1
MW-5MW-6
MW-3
MW-4
MW-7
MW-8
MW-11
MW-12
MW-9
MW-10
SOURCE:
CHATHAM COUNTY GIS
DATED 2013
SCALE AS SHOWN
FIGURE 6
GROUNDWATER ELEVATION MAP
PETRO MART #4
11455 NC HIGHWAY 15/501 NORTH
CHAPEL HILL, CHATHAM COUNTY,
NORTH CAROLINA
NCDEQ INCIDENT: TF-3274
ECS PROJECT: 49:6230-C
Scale: 1 inch = 80 feet
LEGEND
Approximate Location of Monitoring Well
Groundwater Elevation
Groundwater Contour Line
Estimated Direction of Groundwater Flow
MW-1
521.99
MW-4
522.86
Approximate Location of
Current USTs
MW-6
522.31 MW-1
521.99
Approximate Location of
Former USTs
MW-11
522.61
MW-12
522.79
MW-10
524.54
MW-7
522.96
MW-8
523.17
MW-5
521.97
MW-9
522.61
MW-3
523.08
523
522524
MW-2
522.54
FIGURE 7
PANTRY #294 SITE MAP
PETRO MART #4
11455 NC HIGHWAY 15/501 NORTH
CHAPEL HILL, CHATHAM COUNTY,
NORTH CAROLINA
NCDEQ INCIDENT: TF-3274
ECS PROJECT: 49:6230-C
SOURCE:
Withers and Ravenel (WR) May 2013
Groundwater Monitoring Report
SCALE AS SHOWN
SITE
COMMERCIAL
SINGLE-FAMILY
RESIDENCES
THE PANTRY 294
MW-3
MW-4
SOURCE:
CHATHAM COUNTY GIS
DATED 2013
SCALE AS SHOWN
FIGURE 8
GROUNDWATER CONCENTRATION MAP
PETRO MART #4
11455 NC HIGHWAY 15/501 NORTH
CHAPEL HILL, CHATHAM COUNTY,
NORTH CAROLINA
NCDEQ INCIDENT: TF-3274
ECS PROJECT: 49:6230-C
Scale: 1 inch = 80 feet
MW-5
BRL
MW-6
BRL MW-1
Diisopropyl Ether 0.45 J
Methyl tert-Butyl Ether 28
LEGEND
Approximate Location of Monitoring Well
6.7 Concentrations Above Laboratory Reporting
Limits (µg/L)
400 Bold Concentrations Above NC2LGWQS (µg/L)
24,000 Bold Underlined Concentrations Above GCL (µg/L)
BRL Below Reporting Limit
J Estimated Concentration
MW-1
MW-2
Diisopropyl Ether 7.0
Methyl tert-Butyl Ether 68
MW-10
Chloroform 11
MW-9
Diisopropyl Ether 0.21 J
Methyl tert-Butyl Ether 11
MW-11
Toluene 0.18 J
Methyl tert-Butyl Ether 2.2
MW-7
Methyl tert-Butyl Ether 2.8
MW-8
Methyl tert-Butyl Ether 2.7
MW-3
Benzene 24,000
Toluene 48,000
Ethylbenzene 4,200
Total Xylenes 20,600
2-Butanone 2,400 J
Diisopropyl Ether 280
2-Hexanone 810 J
Isopropylbenzene 140 J
Methyl tert-Butyl Ether 3,600
Naphthalene 2,300 J
n-Propylbenzene 440
1,2,4-Trimethylbenzene 2,400
1,3,5-Trimethylbenzene 780
MW-4
Benzene 410
Toluene 6.7
Ethylbenzene 81
Total Xylenes 206
Diisopropyl Ether 68
Isopropylbenzene 3.8 J
Methyl tert-Butyl Ether 400
n-Propylbenzene 6.8
1,2,4-Trimethylbenzene 27
1,3,5-Trimethylbenzene 26
MW-12
Benzene 2,300
Toluene 4,600
Ethylbenzene 540
Total Xylenes 1,119
Diisopropyl Ether 180
2-Hexanone 460 J
Isopropylbenzene 19 J
Methyl tert-Butyl Ether 1,300
4-Methyl-2-pentanone 190 J
Naphthalene 450 J
n-Propylbenzene 39 J
1,2,4-Trimethylbenzene 520
1,3,5-Trimethylbenzene 190
SOURCE:
CHATHAM COUNTY GIS
DATED 2013
SCALE AS SHOWN
FIGURE 9
MTBE ISOCONCENTRATION MAP
PETRO MART #4
11455 NC HIGHWAY 15/501 NORTH
CHAPEL HILL, CHATHAM COUNTY,
NORTH CAROLINA
NCDEQ INCIDENT: TF-3274
ECS PROJECT: 49:6230-C
MW-3
Scale: 1 inch = 80 feet
LEGEND
Approximate Location of Monitoring Well
MTBE Isoconcentration Contour (µg/L)
400 Bold Concentration Above NC2LGWQS
BRL Below Reporting Limit
MW-1
MW-5
BRL
MW-6
BRL
Approximate Location of
Former USTs
Approximate Location of
Current USTs
MW-2
68
20MW-1
28
MW-8
2.7
MW-7
2.8
MW-3
3,600 MW-4
400
200
2,000
MW-11*
2.2
MW-12*
1,300
MW-9
11
MW-10
BRL

TABLES

UST ID
Number
Last
Contents
Previous
Contents
Capacity
(in Gallons)
Construction
Details
Tank
Dimensions
Installation
Date
Removal
Date Status
1 Kerosene Kerosene 2,000 Unknown 12.0' x 5.33'11/10/1986 3/7/2001 Removed
2 Diesel Diesel 3,000 Unknown 12.0' x 5.33'11/10/1986 3/7/2001 Removed
3 Gasoline Gasoline 6,000 Unknown 16.16' x 8.0'11/10/1986 3/7/2001 Removed
4 Gasoline Gasoline 8,000 Unknown 20.66' x 8'11/10/1986 3/7/2001 Removed
5 Gasoline Gasoline 8,000 Unknown 20.66' x 8'11/10/1986 3/7/2001 Removed
6 Gasoline Gasoline 12,000 Unknown Unknown May 2001 Current Current
7 Gasoline Gasoline 8,000 Unknown Unknown May 2001 Current Current
8 Diesel Diesel 6,000 Unknown Unknown May 2001 Current Current
Chapel Hill, Chatham County, North Carolina
ECS Project: 49:6230-C
Table 1
UST Information
Petro Mart #4
11455 NC Highway 15/501 North
NCDEQ Incident: 3274
PARAMETER
Sample ID SS-1A SS-1B SS-2A SS-2B SS-1A SS-1B SS-2A SS-2B SS-3A SS-3B SS-4A SS-4B SS-5A SS-5B SS-6A SS-6B SS-7A SS-7B SS-8A SS-8B SS-9A SS-9B SS-10A SS-10B SS-11A SS-11B SS-12A SS-12B
Collection Date
Sample Depth (ft bgs)3-5 8-10 3-5 8-10 11.5-13.5 18.5-19.5 14.0-15.0 18.5-19.5 14.0-15.0 18.5-19.5 14.0-15.0 18.5-19.5 13.0-14.0 18.5-19.5 8.5-9.5 18.5-19.5 8.5-9.5 18.5-19.5 8.5-9.5 18.5-19.5 14.5-15.5 18.5-19.5 9.0-13.0 18.5-19.5 4.0-14.0 18.5-19.5 9.0-10.0 18.5-19.5
PID Reading (ppm)NA NA NA NA 3.2 7.2 8.4 5.7 38.0 40.8 33.7 24.5 21.7 22.1 20.0 18.4 0.4 5.1 2.2 68.0 9.5 62.7 25.2 41.1 33.3 31.3 6.6 33.8
Benzene BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 1.8 BRL 3.1 BRL 0.0064 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 0.0056 18 164
n-Butylbenzene BRL BRL BRL BRL BRL BRL BRL BRL BRL 0.30 8.5 20.8 17.2 40.7 BRL 0.13 BRL BRL BRL BRL BRL BRL BRL 0.50 2.3 18.2 BRL BRL 4.3 626 16,350
Methylene chloride BRL BRL 0.032 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 0.02 85 763
Methyl-tert-butyl ether BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 0.010 BRL 0.011 0.0058 0.020 BRL 0.032 BRL BRL BRL BRL BRL BRL 0.091 350 3,100
sec-Butylbenzene BRL BRL BRL BRL BRL BRL BRL BRL 0.99 BRL 2.0 4.4 3.5 8.3 BRL 0.023 BRL BRL BRL BRL BRL BRL BRL BRL 0.55 4.7 BRL BRL 3.3 626 16,350
Isopropylbenzene BRL BRL BRL BRL BRL BRL BRL BRL 1.7 BRL 2.8 10.6 4.8 19.8 BRL 0.024 BRL BRL BRL BRL BRL BRL BRL BRL 0.71 8.9 BRL BRL 1.7 1,564 40,880
Ethylbenzene BRL BRL BRL BRL BRL BRL BRL BRL 10.8 0.32 11.0 101 27.4 176 BRL 0.12 BRL BRL BRL BRL 0.0062 BRL BRL BRL 2.7 42.7 BRL BRL 4.9 1,560 40,000
p-Isopropyltoluene BRL BRL BRL BRL BRL BRL BRL 1.6 3.6 0.18 5.3 BRL 9.0 20.8 BRL 0.066 BRL BRL BRL BRL BRL BRL 0.012 BRL 1.5 11.7 BRL BRL 0.12 100 4,000
Naphthalene BRL BRL BRL BRL BRL BRL BRL 10.7 14.1 1.2 30.0 121 48.6 149 BRL BRL BRL BRL BRL 0.024 0.038 0.081 0.56 3.3 8.6 45.3 BRL 0.059 0.16 313 8,176
Acetone BRL BRL BRL BRL BRL BRL BRL 31.0 11.8 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 24 14,000 360,000
n-Propylbenzene BRL BRL BRL BRL BRL BRL BRL 2.3 7.3 0.34 11.6 44.7 25.4 90.3 BRL 0.12 BRL BRL BRL BRL BRL BRL 0.0098 BRL 3.2 BRL BRL BRL 1.7 626 16,350
Toluene BRL BRL BRL BRL BRL BRL BRL BRL 6.9 0.20 3.0 170 16.6 245 BRL 0.11 BRL BRL BRL 0.0096 BRL 0.012 BRL BRL 0.60 22.6 BRL BRL 4.3 1,200 32,000
1,2,3-Trichloropropane BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 3.7 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL NS NS NS
1,2,4-Trimethylbenzene BRL BRL BRL BRL BRL BRL BRL 21.2 59.1 3.3 100 272 182 592 BRL 0.23 BRL BRL BRL 0.0064 0.039 0.022 0.15 3.0 24.3 190 0.0073 0.0062 8.5 782 20,440
1,3,5-Trimethylbenzene BRL BRL BRL BRL BRL BRL BRL 6.2 18.3 0.96 29.9 81.8 51.7 177 BRL BRL BRL BRL BRL BRL 0.010 BRL 0.036 0.80 7.4 57.7 BRL BRL 8.5 782 20,440
Total Xylenes BRL BRL BRL BRL BRL BRL BRL 7.0 61.4 2.4 66.3 506 128 943 BRL BRL BRL BRL BRL BRL 0.017 0.022 0.023 0.32 15.5 234 BRL BRL 4.6 3,129 81,760
All Other VOCs BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
1-Methylnaphthalene NS NS NS NS BRL BRL BRL 7.1 6.0 BRL 7.8 23.5 21.5 25.2 BRL 0.51 BRL BRL BRL BRL BRL BRL BRL 1.3 1.8 11.5 BRL BRL 0.004 20 100
2-Methylnaphthalene NS NS NS NS BRL BRL BRL 13.8 12.0 0.63 15.5 64.5 45.0 54.9 BRL 0.96 BRL BRL BRL BRL BRL BRL 0.73 2.6 3.8 24.6 BRL BRL 3.6 63 1,635
Naphthalene NS NS NS NS BRL BRL BRL 12.2 10.3 0.63 14.3 62.7 34.4 59.6 BRL 0.44 BRL BRL BRL BRL BRL BRL BRL 1.6 3.3 24.7 BRL BRL 0.16 313 8,176
Phrenanthene NS NS NS NS BRL BRL BRL 0.65 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 56 469 12,264
All other SVOCs NS NS NS NS BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
Aliphatics (C5-C8)NS NS NS NS BRL BRL BRL 10.3 31.9 BRL 166 736 113 573 BRL BRL BRL BRL BRL BRL BRL BRL BRL 7.6 70.7 118 BRL BRL 68 939 24,528
Aliphatics (C9-C18)NS NS NS NS BRL BRL 2.8 422.1 287 6.8 576 1,353 868 1,900 BRL 5.7 BRL BRL BRL BRL BRL BRL 3.2 15.3 337 898 BRL BRL 540 1,500 40,000
Aliphatics (C19-C36)NS NS NS NS BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL Immobile 31,000 810,000
Aromatics (C9-C22)NS NS NS NS BRL BRL 5.2 220.7 272 4.8 539 1,154 896 1,993 BRL BRL BRL BRL BRL BRL BRL BRL 3.4 9.8 318.2 509 BRL BRL 31 469 12,264
Notes:
Results presented in milligrams per kilogram (mg/kg), analogous to parts per million (ppm)
mg/kg = Milligrams per Kilogram
Underlined = Detected above the Soil-to-Water Maximum Contaminant Concentration and Residential Soil Cleanup Level
Bold = Detected above the Action Level or Soil-to-Water Maximum Contaminant Concentration
BRL = Below Laboratory Reporting Limit
NS = Not Standard
NA = Not Applicable
4/15/2015
NCDEQ = North Carolina Department of Environmental Quality
11/5/2018
Volitile Petroluem Hydrocarbons (VPH) and Extractable Petroleum Hydrocarbons (EPH) by MADEP
ECS Project: 49:6230-C
Volatile Organic Compounds (VOCs) by EPA Method 8260
--
Semi-Volatile Organic Compounds (SVOCs) by EPA Method 8270
--
Soil-to-Water
Maximum
Contaminant
Concentration
Residential
Soil Cleanup
Level
Industrial/
Commercial
Soil Cleanup
Level
Table 2
Summary of Historical Soil Analytical Results
Petro Mart #4
11455 NC Highway 15/501 North
Chapel Hill, Chatham County, North Carolina
NCDEQ Incident: 3274
ANALYTICAL RESULTS
Water Supply
Well ID Well Owner / Address**Well Address Well Use Well Depth
(ft bgs)Type of Well
Approximate Distance
from Source Area of
Release (ft)
WSW-1
Jean Williams (AQUA)
PO Box 429
Carrboro, NC 27510
Cedar Terrace
Chapel Hill, NC 27514 Potable Unknown Drilled Approximately
380 ft west
WSW-5
Jean Williams
PO Box 429
Carrboro, NC 27510
29 Cedar Lake Road
Chapel Hill, NC 27514 Inactive Unknown Drilled Approximately
680 ft west
WSW-6
Cheryl Curl Atwater and Toni Buck Curl
709 Reserve Estates Drive
Wake Forest, NC 27586
Cedar Village Road
Chapel Hill, NC 27514 Inactive Unknown Drilled Approximately
280 ft southwest
WSW-7
Cheryl Curl Atwater and Toni Buck Curl
709 Reserve Estates Drive
Wake Forest, NC 27587
103 Cedar Village Road
Chapel Hill, NC 27514 Inactive Unknown Drilled Approximately
930 ft southwest
** ECS confirmed ownership details via Chatham County GIS on October 10, 2019.
ECS Project: 49:6230-C
Table 3
Water Supply Well Survey
Petro Mart #4
11455 NC Highway 15/501 North
Chapel Hill, Chatham County, North Carolina
NCDEQ Incident: TF-3274
SAMPLE ID MW-1 MW-2 MW-3 MW-4 MW-5 MW-6 MW-7 MW-8 MW-9 MW-10 MW-11 MW-12
Date Sampled
pH 7.22 6.21 6.23 6.21 7.89 5.15 6.43 7.08 6.29 7.11 6.49 7.22
Temperature (oC)18.73 19.21 20.02 19.74 17.00 17.11 21.54 20.59 19.90 19.61 20.02 18.73
Conductivity (mS/cm)0.161 0.115 0.270 0.395 0.184 0.181 0.168 0.101 0.263 0.143 0.260 0.161
Dissolved O2 (mg/L)3.63 8.27 5.72 9.34 4.00 5.81 3.90 1.47 5.20 3.91 6.34 3.63
Turbidity (Observed)NT ST NT NT ST ST T ST T ST NT ST
Notes:
mS/cm = milliseimens per centimeter
mV = millivolts
°C = degress Celsius
NT= Not Turbid
ST= Slightly Turbid
T= Turbid
mg/L= milligrams per Liter
Measured using YSI model 560 Meter
ECS Project: 49:6230-C
10/1/2019
Table 4
Geochemical Measurements
Petro Mart #4
11455 NC Highway 15/501 North
Chapel Hill, Chatham County, North Carolina
NCDEQ Incident: 3274
Monitoring
Well ID
Date
Measured
Depth to
Groundwater
(ft. btoc)
Date
Installed
Total Well
Depth
(ft. btoc)
Screen
Interval
(ft. btoc)
TOC
Elevation*
Groundwater
Elevation (ft)
MW-1 10/1/2019 31.44 4/15/2015 55 40-55 553.43 521.99
MW-2 10/1/2019 29.90 4/15/2015 54 39-54 552.44 522.54
MW-3 10/1/2019 29.95 8/10/2015 49 29-49 553.03 523.08
MW-4 10/1/2019 28.90 8/10/2015 46 26-46 551.76 522.86
MW-5 10/1/2019 31.43 8/10/2015 52 32-52 553.40 521.97
MW-6 10/1/2019 29.63 8/10/2015 52 32-52 551.94 522.31
MW-7 10/1/2019 31.22 11/6/2018 45 30-45 554.18 522.96
MW-8 10/1/2019 28.77 11/6/2018 45 30-45 551.94 523.17
MW-9 10/1/2019 30.91 9/24/2019 50 30-50 553.57 522.66
MW-10 10/1/2019 33.48 9/24/2019 50 30-50 558.02 524.54
MW-11 10/1/2019 31.25 9/25/2019 69 59-69 553.86 522.61
MW-12 10/1/2019 28.97 9/25/2019 66 56-66 551.76 522.79
Notes:
ft. btoc = Feet Below Top of Casing
TOC = Top of Casing* = Survey performed by Bateman Civil Survey and KCI on March 6, 2019 and October 1, 2019, respectively. The
site vertical datum is based on NAV88 and the horizontal datum is based on NAD83.
Table 5
Monitoring Well Construction and Groundwater Elevation Details
Petro Mart #4
11455 NC Highway 15/501 North
Chapel Hill, Chatham County, North Carolina
ECS Project: 49:6230-C
NCDEQ Incident: 3274
Sample ID Sample Date
BenzeneTolueneEthylbenzeneTotal XylenesAcetone2-ButanoneChloroformDiisopropyl etherEthanol 2-HexanoneIsopropylbenzeneMethyl tert-Butyl Ether 4-Methyl-2-pentanoneNaphthalenen-Propylbenzene1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneMW-1 10/1/2019 BRL BRL BRL BRL BRL BRL BRL 0.45 J BRL BRL BRL 28 BRL BRL BRL BRL BRL
MW-2 10/1/2019 BRL BRL BRL BRL BRL BRL BRL 7.0 BRL BRL BRL 68 BRL BRL BRL BRL BRL
MW-3 10/1/2019 24,000 48,000 4,200 20,600 BRL 2,400 J BRL 280 BRL 810 J 140 J 3,600 BRL 2,300 J 440 2,400 780
MW-4 10/1/2019 410 6.7 81 206 BRL BRL BRL 68 BRL BRL 3.8 J 400 BRL BRL 6.8 27 26
MW-5 10/1/2019 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
MW-6 10/1/2019 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
MW-7 10/1/2019 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 2.8 BRL BRL BRL BRL BRL
MW-8 10/1/2019 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 2.7 BRL BRL BRL BRL BRL
MW-9 10/1/2019 BRL BRL BRL BRL BRL BRL BRL 0.21 J BRL BRL BRL 11 BRL BRL BRL BRL BRL
MW-10 10/1/2019 BRL BRL BRL BRL BRL BRL 11 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
MW-11 10/1/2019 BRL 0.18 J BRL BRL BRL BRL BRL BRL BRL BRL BRL 2.2 BRL BRL BRL BRL BRL
MW-12 10/1/2019 2,300 4,600 540 1,119 BRL BRL BRL 180 BRL 460 J 19 J 1,300 190 J 450 J 39 J 520 190
Field Blank 10/1/2019 BRL BRL BRL BRL 11 J BRL BRL BRL 23 J BRL BRL BRL BRL BRL BRL BRL BRL
1 600 600 500 6,000 4,000 70 70 4,000 40 70 20 100 6 70 400 400
5,000 260,000 84,500 85,500 6,000,000 4,000,000 70,000 70,000 4,000,000 40,000 25,000 20,000 100,000 6,000 30,000 28,500 25,000
Notes:
NC2LGWQS = North Carolina 2L Groundwater Quality Standard as of April 1, 2013
GCL = NCDEQ's Gross Contamination Levels for Groundwater as of April 16, 2012
(µg/L) = Micrograms per Liter
Bold = Reported above the NC2LGWQS
Underline = Reported above the NC2LGWQS and GCL
BRL = Below Laboratory Reporting Limit
J = Estimated Concentration
NC2LGWQS (µg/L)
GCL (µg/L)
Table 6
Summary of Current Groundwater Analytical Results
Petro Mart #4
11455 NC Highway 15/501 North
Chapel Hill, Chatham County, North Carolina
NCDEQ Incident: 3274
ECS Project: 49:6230-C
Contaminant of Concern (µg/L)Analytical Method Standard Method 6200B
Sample ID Date Collected
BenzeneTolueneEthylbenzeneTotal XylenesAcetone2-ButanoneChloroform1,4-DichlorobenzeneDiisopropyl etherEthanol2-HexanoneIsopropylbenzeneMethyl tert-butyl ether4-Methyl-2-pentanoneNaphthalenen-PropylbenzeneStyrene1,2,4- Trimethylbenzene1,3,5-Trimethylbenzene*MW-1 2/8/1995 1,800 3,400 300 760 BRL BRL BRL BRL BRL BRL BRL BRL 1,200 BRL BRL BRL BRL BRL BRL
*MW-2 2/8/1995 1.0 1.6 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
4/16/2015 BRL BRL BRL BRL BRL BRL BRL BRL 0.90 BRL 12,830 BRL 53.5 BRL BRL BRL BRL BRL BRL
8/12/2015 BRL BRL BRL BRL BRL BRL BRL BRL 1.2 BRL BRL BRL 76.5 BRL BRL BRL BRL BRL BRL
3/7/2018 BRL BRL BRL BRL BRL BRL BRL BRL 0.64 BRL BRL BRL 53 BRL BRL BRL BRL BRL BRL
11/5/2018 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 37.2 BRL BRL BRL BRL BRL BRL
3/6/2019 BRL BRL BRL BRL BRL BRL BRL BRL 0.43 J BRL BRL BRL 41 BRL BRL BRL BRL BRL BRL
10/1/2019 BRL BRL BRL BRL BRL BRL BRL BRL 0.45 J BRL BRL BRL 28 BRL BRL BRL BRL BRL BRL
4/16/2015 73.3 0.64 2.7 83.8 BRL BRL BRL BRL 17.3 BRL BRL 1.7 296 BRL BRL 1.4 BRL 6.2 BRL
8/12/2015 BRL BRL BRL BRL BRL BRL BRL BRL 13.5 BRL BRL BRL 250 BRL BRL BRL BRL BRL BRL
3/7/2018 BRL BRL BRL BRL BRL BRL BRL BRL 9.9 BRL BRL BRL 130 BRL BRL BRL BRL BRL BRL
11/5/2018 BRL BRL BRL BRL BRL BRL BRL BRL 6.9 BRL BRL BRL 84.4 BRL BRL BRL BRL BRL BRL
3/6/2019 BRL BRL BRL BRL BRL BRL BRL BRL 7.3 BRL BRL BRL 100 BRL BRL BRL BRL BRL BRL
10/1/2019 BRL BRL BRL BRL BRL BRL BRL BRL 7.0 BRL BRL BRL 68 BRL BRL BRL BRL BRL BRL
8/12/2015 29,900 32,800 1,860 9,140 BRL BRL BRL BRL 229 BRL BRL 50.3 22,700 BRL 733 188 34.4 1,350 340
3/7/2018
11/5/2018 31,900 38,700 2,880 13,830 BRL BRL BRL BRL 130 BRL BRL BRL 7,760 BRL 758 BRL BRL 2,150 BRL
3/6/2019 28,000 43,000 3,300 16,600 10,000 J 2,700 BRL BRL 290 BRL BRL 100 J 7,200 BRL 1,900 290 BRL 2,400 560
10/1/2019 24,000 48,000 4,200 20,600 BRL 2,400 J BRL BRL 280 BRL 810 J 140 J 3,600 BRL 2,300 J 440 BRL 2,400 780
8/12/2015 1,410 1,680 98.9 2,497 BRL BRL BRL BRL 296 BRL BRL BRL 4,950 BRL 26.2 7.5 BRL 306 124
3/7/2018 1,200 620 74 1,730 BRL BRL BRL BRL 160 BRL 320 3.6 J 2,100 47 J BRL 11 BRL 200 74
11/5/2018 309 24.3 37 311 BRL BRL BRL BRL 76.4 BRL BRL BRL 834 BRL 10.1 BRL BRL 47.9 BRL
3/6/2019 420 4.5 J 28 271 BRL BRL BRL BRL 77 BRL BRL 1.3 J 830 BRL 36 2.0 J BRL 48 20
10/1/2019 410 6.7 81 206 BRL BRL BRL BRL 68 BRL BRL 3.8 J 400 BRL BRL 6.8 BRL 27 26
8/12/2015 1.3 2.8 0.53 2.55 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
3/7/2018 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
11/5/2018 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
3/6/2019 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
10/1/2019 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
8/12/2015 2.4 5.2 0.76 3.7 BRL BRL BRL BRL BRL BRL BRL BRL 0.76 BRL BRL BRL BRL BRL BRL
3/7/2018 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
11/5/2018 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
3/6/2019 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
10/1/2019 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
11/8/2018 BRL BRL BRL BRL BRL BRL BRL 0.9 BRL BRL BRL BRL 5.1 BRL BRL BRL BRL BRL BRL
3/6/2019 0.17 J 0.65 BRL 0.31 J BRL BRL BRL 0.50 BRL BRL BRL BRL 3.9 BRL BRL BRL BRL BRL BRL
10/1/2019 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 2.8 BRL BRL BRL BRL BRL BRL
11/8/2018 BRL BRL BRL BRL BRL BRL BRL 0.57 BRL BRL BRL BRL 4.8 BRL BRL BRL BRL BRL BRL
3/6/2019 BRL 0.43 J BRL BRL BRL BRL BRL 0.23 J BRL BRL BRL BRL 3.6 BRL BRL BRL BRL BRL BRL
10/1/2019 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 2.7 BRL BRL BRL BRL BRL BRL
MW-9 10/1/2019 BRL BRL BRL BRL BRL BRL BRL BRL 0.21 J BRL BRL BRL 11 BRL BRL BRL BRL BRL BRL
MW-10 10/1/2019 BRL BRL BRL BRL BRL BRL 11 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
MW-11^10/1/2019 BRL 0.18 J BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 2.2 BRL BRL BRL BRL BRL BRL
MW-12^10/1/2019 2,300 4,600 540 1,119 BRL BRL BRL BRL 180 BRL 460 J 19 J 1,300 190 J 450 J 39 J BRL 520 190
1 600 600 500 6,000 4,000 70 6 70 4,000 40 70 20 100 6 70 70 400 400
5,000 260,000 84,500 85,500 6,000,000 4,000,000 70,000 6,000 70,000 4,000,000 40,000 25,000 20,000 100,000 6,000 30,000 70,000 28,500 25,000
Notes:
NC2LGWQS = North Carolina 2L Groundwater Quality Standard as of April 1, 2013
GCL = NCDEQ's Gross Contamination Levels for Groundwater as of April 16, 2012
(µg/L) = Micrograms per Liter
Bold = Reported above the NC2LGWQS or NCDEQ Final and Interim GWQS
Underline = Reported above the NC2LGWQS and GCL
BRL = Below Laboratory Reporting Limit
J = Estimated Concentration
* = Monitoring wells were abandoned in March 2001
^ = Deep, Type II monitoring wells
MW-4
Table 7
Summary of Historical Groundwater Analytical Results
Petro Mart #4
11455 NC Highway 15/501 North
Chapel Hill, Chatham County, North Carolina
Standard Method 6200B (or equivalent)
NCDEQ Incident: 3274
ECS Project: 49:6230-C
Contaminant of Concern (µg/L)Analytical Method
Free Product ≈ 0.36''
MW-1
MW-2
MW-3
NC2LGWQS (µg/L)
Gross Contamination Level (µg/L)
MW-5
MW-6
MW-7
MW-8

APPENDIX A

APPENDIX B

APPENDIX C


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APPENDIX D

SITE PHOTOGRAPHS
PETRO MART #4
11455 NC HIGHWAY 15/501 NORTH
CHAPEL HILL, CHATHAM COUNTY
NORTH CAROLINA
NCDEQ INCIDENT No. 3274
ECS PROJECT NO. 49:6230-C
Photograph 1: View of the underground utility markings near monitoring well MW-12.
Photograph 2: View of the underground utility markings near monitoring well MW-11
SITE PHOTOGRAPHS
PETRO MART #4
11455 NC HIGHWAY 15/501 NORTH
CHAPEL HILL, CHATHAM COUNTY
NORTH CAROLINA
NCDEQ INCIDENT No. 3274
ECS PROJECT NO. 49:6230-C
Photograph 3: View of the drilling activities conducted on monitoring well MW-9.
Photograph 4: View of monitoring well MW-9 construction details.
SITE PHOTOGRAPHS
PETRO MART #4
11455 NC HIGHWAY 15/501 NORTH
CHAPEL HILL, CHATHAM COUNTY
NORTH CAROLINA
NCDEQ INCIDENT No. 3274
ECS PROJECT NO. 49:6230-C
Photograph 5: View of the drilling activities conducted on monitoring well MW-10.
Photograph 6: View of monitoring well MW-10 construction details.
SITE PHOTOGRAPHS
PETRO MART #4
11455 NC HIGHWAY 15/501 NORTH
CHAPEL HILL, CHATHAM COUNTY
NORTH CAROLINA
NCDEQ INCIDENT No. 3274
ECS PROJECT NO. 49:6230-C
Photograph 7: View of the drilling activities conducted on monitoring well MW-11.
Photograph 8: View of monitoring well MW-11 construction details.
SITE PHOTOGRAPHS
PETRO MART #4
11455 NC HIGHWAY 15/501 NORTH
CHAPEL HILL, CHATHAM COUNTY
NORTH CAROLINA
NCDEQ INCIDENT No. 3274
ECS PROJECT NO. 49:6230-C
Photograph 9: View of the drilling activities conducted on monitoring well MW-12.
Photograph 10: View of monitoring well MW-12 construction details.
SITE PHOTOGRAPHS
PETRO MART #4
11455 NC HIGHWAY 15/501 NORTH
CHAPEL HILL, CHATHAM COUNTY
NORTH CAROLINA
NCDEQ INCIDENT No. 3274
ECS PROJECT NO. 49:6230-C
Photograph 11: View of monitoring well MW-1. View is to the south.
Photograph 12: View of monitoring well MW-2. View is to the south.
SITE PHOTOGRAPHS
PETRO MART #4
11455 NC HIGHWAY 15/501 NORTH
CHAPEL HILL, CHATHAM COUNTY
NORTH CAROLINA
NCDEQ INCIDENT No. 3274
ECS PROJECT NO. 49:6230-C
Photograph 13: View of monitoring well MW-3. View is to the south.
Photograph 14: View of monitoring wells MW-4 and MW-12. View is to the south.
SITE PHOTOGRAPHS
PETRO MART #4
11455 NC HIGHWAY 15/501 NORTH
CHAPEL HILL, CHATHAM COUNTY
NORTH CAROLINA
NCDEQ INCIDENT No. 3274
ECS PROJECT NO. 49:6230-C
Photograph 15: View of monitoring well MW-5. View is to the north.
Photograph 16: View of monitoring well MW-6. View is to the west.
SITE PHOTOGRAPHS
PETRO MART #4
11455 NC HIGHWAY 15/501 NORTH
CHAPEL HILL, CHATHAM COUNTY
NORTH CAROLINA
NCDEQ INCIDENT No. 3274
ECS PROJECT NO. 49:6230-C
Photograph 17: View of monitoring wells MW-7 and MW-11. View is to the south.
Photograph 18: View of monitoring well MW-8. View is to the north.
SITE PHOTOGRAPHS
PETRO MART #4
11455 NC HIGHWAY 15/501 NORTH
CHAPEL HILL, CHATHAM COUNTY
NORTH CAROLINA
NCDEQ INCIDENT No. 3274
ECS PROJECT NO. 49:6230-C
Photograph 19: View of monitoring well MW-9. View is to the north.
Photograph 20: View of monitoring well MW-10. View is to the north.

APPENDIX E

39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
October 9, 2019
Matt Gillis
ECS Southeast - Raleigh, NC
9001 Glenwood Avenue
Raleigh, NC 27617
Project Location: Chapel Hill, NC
Client Job Number:
Project Number: 49:6230-C
Laboratory Work Order Number: 19J0185
Enclosed are results of analyses for samples received by the laboratory on October 2, 2019. If you have any questions
concerning this report, please feel free to contact me.
Sincerely,
Kerry K. McGee
Project Manager
Page 1 of 49
Table of Contents
Table of Contents
Sample Summary 3
Hits Only Report 4
Case Narrative 7
Sample Results 8
19J0185-01 8
19J0185-02 10
19J0185-03 12
19J0185-04 14
19J0185-05 16
19J0185-06 18
19J0185-07 20
19J0185-08 22
19J0185-09 24
19J0185-10 26
19J0185-11 28
19J0185-12 30
19J0185-13 32
Sample Preparation Information 34
QC Data 35
Volatile Organic Compounds by GC/MS 35
B242256 35
B242263 39
Flag/Qualifier Summary 43
Certifications 44
Chain of Custody/Sample Receipt 46
Page 2 of 49
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL SUMMARY
10/9/2019
ECS Southeast - Raleigh, NC
9001 Glenwood Avenue
Raleigh, NC 27617
ATTN: Matt Gillis
49:6230-C
19J0185
The results of analyses performed on the following samples submitted to the CON-TEST Analytical Laboratory are found in this report.
PROJECT LOCATION:
PURCHASE ORDER NUMBER:
PROJECT NUMBER:
REPORT DATE:
WORK ORDER NUMBER:
FIELD SAMPLE #LAB ID:MATRIX TESTSAMPLE DESCRIPTION SUB LAB
Chapel Hill, NC
Field Blank 19J0185-01 Field Blank SM21-22 6200B
MW-1 19J0185-02 Ground Water SM21-22 6200B
MW-2 19J0185-03 Ground Water SM21-22 6200B
MW-3 19J0185-04 Ground Water SM21-22 6200B
MW-4 19J0185-05 Ground Water SM21-22 6200B
MW-5 19J0185-06 Ground Water SM21-22 6200B
MW-6 19J0185-07 Ground Water SM21-22 6200B
MW-7 19J0185-08 Ground Water SM21-22 6200B
MW-8 19J0185-09 Ground Water SM21-22 6200B
MW-9 19J0185-10 Ground Water SM21-22 6200B
MW-10 19J0185-11 Ground Water SM21-22 6200B
MW-11 19J0185-12 Ground Water SM21-22 6200B
MW-12 19J0185-13 Ground Water SM21-22 6200B
[TOC_1]Sample Summary[TOC]
Page 3 of 49
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
[TOC_1]Hits Only Report[TOC]EXECUTIVE SUMMARY
Client ID:Lab ID:19J0185-06MW-5
No Results Detected
Client ID:Lab ID:19J0185-07MW-6
No Results Detected
Con-Test does not accept liability for the consequences of any actions taken solely on the basis of the information provided in the Executive Summary
section of this report. Users must review this report in its entirety to determine data usability and assessment.
Page 4 of 49
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
EXECUTIVE SUMMARY
Client ID:Lab ID:
Analyte Results/Qual RL Units Method
19J0185-01Field Blank
DL
Acetone 11 50 g/L SM21-22 6200BJ3.8
Ethanol 23 50 g/L SM21-22 6200BJ11
Client ID:Lab ID:
Analyte Results/Qual RL Units Method
19J0185-02MW-1
DL
Diisopropyl Ether (DIPE)0.45 0.50 g/L SM21-22 6200BJ0.17
Methyl tert-Butyl Ether (MTBE)28 0.50 g/L SM21-22 6200B0.25
Client ID:Lab ID:
Analyte Results/Qual RL Units Method
19J0185-03MW-2
DL
Diisopropyl Ether (DIPE)7.0 0.50 g/L SM21-22 6200B0.17
Methyl tert-Butyl Ether (MTBE)68 0.50 g/L SM21-22 6200B0.25
Client ID:Lab ID:
Analyte Results/Qual RL Units Method
19J0185-04MW-3
DL
1,2,4-Trimethylbenzene 2400 250 g/L SM21-22 6200B90
1,3,5-Trimethylbenzene 780 250 g/L SM21-22 6200B70
2-Butanone (MEK)2400 2500 g/L SM21-22 6200BJ970
2-Hexanone (MBK)810 2500 g/L SM21-22 6200BJ760
Benzene 24000 250 g/L SM21-22 6200B90
Diisopropyl Ether (DIPE)280 250 g/L SM21-22 6200B85
Ethylbenzene 4200 250 g/L SM21-22 6200B65
Isopropylbenzene (Cumene)140 250 g/L SM21-22 6200BJ85
m+p Xylene 14000 500 g/L SM21-22 6200B150
Methyl tert-Butyl Ether (MTBE)3600 250 g/L SM21-22 6200B120
Naphthalene 2300 2500 g/L SM21-22 6200BJ160
n-Propylbenzene 440 250 g/L SM21-22 6200B65
o-Xylene 6600 250 g/L SM21-22 6200B85
Toluene 48000 250 g/L SM21-22 6200B70
Client ID:Lab ID:
Analyte Results/Qual RL Units Method
19J0185-05MW-4
DL
1,2,4-Trimethylbenzene 27 5.0 g/L SM21-22 6200B1.8
1,3,5-Trimethylbenzene 26 5.0 g/L SM21-22 6200B1.4
Benzene 410 5.0 g/L SM21-22 6200B1.8
Diisopropyl Ether (DIPE)68 5.0 g/L SM21-22 6200B1.7
Ethylbenzene 81 5.0 g/L SM21-22 6200B1.3
Isopropylbenzene (Cumene)3.8 5.0 g/L SM21-22 6200BJ1.7
m+p Xylene 160 10 g/L SM21-22 6200B3.0
Methyl tert-Butyl Ether (MTBE)400 5.0 g/L SM21-22 6200B2.5
n-Propylbenzene 6.8 5.0 g/L SM21-22 6200B1.3
o-Xylene 46 5.0 g/L SM21-22 6200B1.7
Toluene 6.7 5.0 g/L SM21-22 6200B1.4
Client ID:Lab ID:
Analyte Results/Qual RL Units Method
19J0185-08MW-7
DL
Methyl tert-Butyl Ether (MTBE)2.8 0.50 g/L SM21-22 6200B0.25
Page 5 of 49
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Client ID:Lab ID:
Analyte Results/Qual RL Units Method
19J0185-09MW-8
DL
Methyl tert-Butyl Ether (MTBE)2.7 0.50 g/L SM21-22 6200B0.25
Client ID:Lab ID:
Analyte Results/Qual RL Units Method
19J0185-10MW-9
DL
Diisopropyl Ether (DIPE)0.21 0.50 g/L SM21-22 6200BJ0.17
Methyl tert-Butyl Ether (MTBE)11 0.50 g/L SM21-22 6200B0.25
Client ID:Lab ID:
Analyte Results/Qual RL Units Method
19J0185-11MW-10
DL
Chloroform 11 0.50 g/L SM21-22 6200B0.17
Client ID:Lab ID:
Analyte Results/Qual RL Units Method
19J0185-12MW-11
DL
Methyl tert-Butyl Ether (MTBE)2.2 0.50 g/L SM21-22 6200B0.25
Toluene 0.18 0.50 g/L SM21-22 6200BJ0.14
Client ID:Lab ID:
Analyte Results/Qual RL Units Method
19J0185-13MW-12
DL
1,2,4-Trimethylbenzene 520 50 g/L SM21-22 6200B18
1,3,5-Trimethylbenzene 190 50 g/L SM21-22 6200B14
2-Hexanone (MBK)460 500 g/L SM21-22 6200BJ150
4-Methyl-2-pentanone (MIBK)190 500 g/L SM21-22 6200BJ170
Benzene 2300 50 g/L SM21-22 6200B18
Diisopropyl Ether (DIPE)180 50 g/L SM21-22 6200B17
Ethylbenzene 540 50 g/L SM21-22 6200B13
Isopropylbenzene (Cumene)19 50 g/L SM21-22 6200BJ17
m+p Xylene 2500 100 g/L SM21-22 6200B30
Methyl tert-Butyl Ether (MTBE)1300 50 g/L SM21-22 6200B25
Naphthalene 450 500 g/L SM21-22 6200BJ31
n-Propylbenzene 39 50 g/L SM21-22 6200BJ13
o-Xylene 1100 50 g/L SM21-22 6200B17
Toluene 4600 50 g/L SM21-22 6200B14
Con-Test does not accept liability for the consequences of any actions taken solely on the basis of the information provided in the Executive Summary
section of this report. Users must review this report in its entirety to determine data usability and assessment.
Page 6 of 49
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
CASE NARRATIVE SUMMARY
All reported results are within defined laboratory quality control objectives unless listed below or otherwise qualified in this report.
For method 6200B elevated reporting limits for samples 19J0185-04+05 due to high concentrations of target compounds.
[TOC_1]Case Narrative[TOC]
SM21-22 6200B
Qualifications:
Laboratory fortified blank/laboratory control sample recovery and duplicate recoveries outside of control limits. Data validation is not
affected since all results are "not detected" for associated samples in this batch and bias is on the high side.
Analyte & Samples(s) Qualified:
L-02
Vinyl Chloride
B242256-BS1, B242256-BSD1
Elevated reporting limit due to high concentration of target compounds.
Analyte & Samples(s) Qualified:
RL-11
19J0185-04[MW-3], 19J0185-05[MW-4], 19J0185-13[MW-12]
The results of analyses reported only relate to samples submitted to the Con-Test Analytical Laboratory for testing.
I certify that the analyses listed above, unless specifically listed as subcontracted, if any, were performed under my direction according to the approved methodologies listed
in this document, and that based upon my inquiry of those individuals immediately responsible for obtaining the information, the material contained in this report is, to the
best of my knowledge and belief, accurate and complete.
Lisa A. Worthington
Technical Representative
Page 7 of 49
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 10/2/2019
Work Order: 19J0185Sample Description:Project Location: Chapel Hill, NC
Sample ID: 19J0185-01
Field Sample #: Field Blank
Sample Matrix: Field Blank
Sampled: 10/1/2019 09:46
[TOC_2]19J0185-01[TOC]
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
11 50 10/5/19 2:15 EEHg/L3.8 10/4/19SM21-22 6200B1JAcetone
ND 0.50 10/5/19 2:15 EEHg/L0.18 10/4/19SM21-22 6200B1Benzene
ND 0.50 10/5/19 2:15 EEHg/L0.15 10/4/19SM21-22 6200B1Bromobenzene
ND 0.50 10/5/19 2:15 EEHg/L0.32 10/4/19SM21-22 6200B1Bromochloromethane
ND 0.50 10/5/19 2:15 EEHg/L0.16 10/4/19SM21-22 6200B1Bromodichloromethane
ND 0.50 10/5/19 2:15 EEHg/L0.46 10/4/19SM21-22 6200B1Bromoform
ND 1.0 10/5/19 2:15 EEHg/L0.78 10/4/19SM21-22 6200B1Bromomethane
ND 5.0 10/5/19 2:15 EEHg/L1.9 10/4/19SM21-22 6200B12-Butanone (MEK)
ND 0.50 10/5/19 2:15 EEHg/L0.21 10/4/19SM21-22 6200B1n-Butylbenzene
ND 0.50 10/5/19 2:15 EEHg/L0.16 10/4/19SM21-22 6200B1sec-Butylbenzene
ND 0.50 10/5/19 2:15 EEHg/L0.17 10/4/19SM21-22 6200B1tert-Butylbenzene
ND 0.50 10/5/19 2:15 EEHg/L0.11 10/4/19SM21-22 6200B1Carbon Tetrachloride
ND 0.50 10/5/19 2:15 EEHg/L0.15 10/4/19SM21-22 6200B1Chlorobenzene
23 50 10/5/19 2:15 EEHg/L11 10/4/19SM21-22 6200B1JEthanol
ND 0.50 10/5/19 2:15 EEHg/L0.21 10/4/19SM21-22 6200B1Chlorodibromomethane
ND 0.50 10/5/19 2:15 EEHg/L0.35 10/4/19SM21-22 6200B1Chloroethane
ND 0.50 10/5/19 2:15 EEHg/L0.17 10/4/19SM21-22 6200B1Chloroform
ND 0.60 10/5/19 2:15 EEHg/L0.45 10/4/19SM21-22 6200B1Chloromethane
ND 0.50 10/5/19 2:15 EEHg/L0.12 10/4/19SM21-22 6200B12-Chlorotoluene
ND 0.50 10/5/19 2:15 EEHg/L0.14 10/4/19SM21-22 6200B14-Chlorotoluene
ND 0.50 10/5/19 2:15 EEHg/L0.19 10/4/19SM21-22 6200B11,2-Dibromoethane (EDB)
ND 0.50 10/5/19 2:15 EEHg/L0.16 10/4/19SM21-22 6200B11,2-Dichlorobenzene
ND 0.50 10/5/19 2:15 EEHg/L0.12 10/4/19SM21-22 6200B11,3-Dichlorobenzene
ND 0.50 10/5/19 2:15 EEHg/L0.13 10/4/19SM21-22 6200B11,4-Dichlorobenzene
ND 0.50 10/5/19 2:15 EEHg/L0.26 10/4/19SM21-22 6200B1Dichlorodifluoromethane (Freon 12)
ND 0.50 10/5/19 2:15 EEHg/L0.16 10/4/19SM21-22 6200B11,1-Dichloroethane
ND 0.50 10/5/19 2:15 EEHg/L0.41 10/4/19SM21-22 6200B11,2-Dichloroethane
ND 0.50 10/5/19 2:15 EEHg/L0.32 10/4/19SM21-22 6200B11,1-Dichloroethylene
ND 0.50 10/5/19 2:15 EEHg/L0.13 10/4/19SM21-22 6200B1cis-1,2-Dichloroethylene
ND 0.50 10/5/19 2:15 EEHg/L0.31 10/4/19SM21-22 6200B1trans-1,2-Dichloroethylene
ND 0.50 10/5/19 2:15 EEHg/L0.20 10/4/19SM21-22 6200B11,2-Dichloropropane
ND 0.50 10/5/19 2:15 EEHg/L0.11 10/4/19SM21-22 6200B11,3-Dichloropropane
ND 0.50 10/5/19 2:15 EEHg/L0.20 10/4/19SM21-22 6200B12,2-Dichloropropane
ND 0.50 10/5/19 2:15 EEHg/L0.16 10/4/19SM21-22 6200B11,1-Dichloropropene
ND 0.50 10/5/19 2:15 EEHg/L0.13 10/4/19SM21-22 6200B1cis-1,3-Dichloropropene
ND 0.50 10/5/19 2:15 EEHg/L0.23 10/4/19SM21-22 6200B1trans-1,3-Dichloropropene
ND 0.50 10/5/19 2:15 EEHg/L0.17 10/4/19SM21-22 6200B1Diisopropyl Ether (DIPE)
ND 0.50 10/5/19 2:15 EEHg/L0.13 10/4/19SM21-22 6200B1Ethylbenzene
ND 5.0 10/5/19 2:15 EEHg/L1.5 10/4/19SM21-22 6200B12-Hexanone (MBK)
ND 0.50 10/5/19 2:15 EEHg/L0.17 10/4/19SM21-22 6200B1Isopropylbenzene (Cumene)
ND 0.50 10/5/19 2:15 EEHg/L0.20 10/4/19SM21-22 6200B1p-Isopropyltoluene (p-Cymene)
ND 0.50 10/5/19 2:15 EEHg/L0.25 10/4/19SM21-22 6200B1Methyl tert-Butyl Ether (MTBE)
ND 5.0 10/5/19 2:15 EEHg/L0.34 10/4/19SM21-22 6200B1Methylene Chloride
ND 5.0 10/5/19 2:15 EEHg/L1.7 10/4/19SM21-22 6200B14-Methyl-2-pentanone (MIBK)
[TOC_1]Sample Results[TOC]
Page 8 of 49
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 10/2/2019
Work Order: 19J0185Sample Description:Project Location: Chapel Hill, NC
Sample ID: 19J0185-01
Field Sample #: Field Blank
Sample Matrix: Field Blank
Sampled: 10/1/2019 09:46
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
ND 0.50 10/5/19 2:15 EEHg/L0.31 10/4/19SM21-22 6200B1Naphthalene
ND 0.50 10/5/19 2:15 EEHg/L0.13 10/4/19SM21-22 6200B1n-Propylbenzene
ND 0.50 10/5/19 2:15 EEHg/L0.11 10/4/19SM21-22 6200B1Styrene
ND 0.50 10/5/19 2:15 EEHg/L0.22 10/4/19SM21-22 6200B11,1,2,2-Tetrachloroethane
ND 0.50 10/5/19 2:15 EEHg/L0.18 10/4/19SM21-22 6200B1Tetrachloroethylene
ND 0.50 10/5/19 2:15 EEHg/L0.14 10/4/19SM21-22 6200B1Toluene
ND 1.0 10/5/19 2:15 EEHg/L0.57 10/4/19SM21-22 6200B11,2,3-Trichlorobenzene
ND 0.50 10/5/19 2:15 EEHg/L0.40 10/4/19SM21-22 6200B11,2,4-Trichlorobenzene
ND 0.50 10/5/19 2:15 EEHg/L0.20 10/4/19SM21-22 6200B11,1,1-Trichloroethane
ND 0.50 10/5/19 2:15 EEHg/L0.16 10/4/19SM21-22 6200B11,1,2-Trichloroethane
ND 0.50 10/5/19 2:15 EEHg/L0.24 10/4/19SM21-22 6200B1Trichloroethylene
ND 0.50 10/5/19 2:15 EEHg/L0.33 10/4/19SM21-22 6200B1Trichlorofluoromethane (Freon 11)
ND 0.50 10/5/19 2:15 EEHg/L0.25 10/4/19SM21-22 6200B11,2,3-Trichloropropane
ND 0.50 10/5/19 2:15 EEHg/L0.18 10/4/19SM21-22 6200B11,2,4-Trimethylbenzene
ND 0.50 10/5/19 2:15 EEHg/L0.14 10/4/19SM21-22 6200B11,3,5-Trimethylbenzene
ND 20 10/5/19 2:15 EEHg/L10 10/4/19SM21-22 6200B1Vinyl Acetate
ND 0.50 10/5/19 2:15 EEHg/L0.45 10/4/19SM21-22 6200B1Vinyl Chloride
ND 1.0 10/5/19 2:15 EEHg/L0.30 10/4/19SM21-22 6200B1m+p Xylene
ND 0.50 10/5/19 2:15 EEHg/L0.17 10/4/19SM21-22 6200B1o-Xylene
Surrogates % Recovery Recovery Limits Flag/Qual
1,2-Dichloroethane-d4 101 10/5/19 2:1570-130
Toluene-d8 99.8 10/5/19 2:1570-130
4-Bromofluorobenzene 90.3 10/5/19 2:1570-130
Page 9 of 49
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 10/2/2019
Work Order: 19J0185Sample Description:Project Location: Chapel Hill, NC
Sample ID: 19J0185-02
Field Sample #: MW-1
Sample Matrix: Ground Water
Sampled: 10/1/2019 10:43
[TOC_2]19J0185-02[TOC]
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
ND 50 10/5/19 8:36 EEHg/L3.8 10/4/19SM21-22 6200B1Acetone
ND 0.50 10/5/19 8:36 EEHg/L0.18 10/4/19SM21-22 6200B1Benzene
ND 0.50 10/5/19 8:36 EEHg/L0.15 10/4/19SM21-22 6200B1Bromobenzene
ND 0.50 10/5/19 8:36 EEHg/L0.32 10/4/19SM21-22 6200B1Bromochloromethane
ND 0.50 10/5/19 8:36 EEHg/L0.16 10/4/19SM21-22 6200B1Bromodichloromethane
ND 0.50 10/5/19 8:36 EEHg/L0.46 10/4/19SM21-22 6200B1Bromoform
ND 1.0 10/5/19 8:36 EEHg/L0.78 10/4/19SM21-22 6200B1Bromomethane
ND 5.0 10/5/19 8:36 EEHg/L1.9 10/4/19SM21-22 6200B12-Butanone (MEK)
ND 0.50 10/5/19 8:36 EEHg/L0.21 10/4/19SM21-22 6200B1n-Butylbenzene
ND 0.50 10/5/19 8:36 EEHg/L0.16 10/4/19SM21-22 6200B1sec-Butylbenzene
ND 0.50 10/5/19 8:36 EEHg/L0.17 10/4/19SM21-22 6200B1tert-Butylbenzene
ND 0.50 10/5/19 8:36 EEHg/L0.11 10/4/19SM21-22 6200B1Carbon Tetrachloride
ND 0.50 10/5/19 8:36 EEHg/L0.15 10/4/19SM21-22 6200B1Chlorobenzene
ND 50 10/5/19 8:36 EEHg/L11 10/4/19SM21-22 6200B1Ethanol
ND 0.50 10/5/19 8:36 EEHg/L0.21 10/4/19SM21-22 6200B1Chlorodibromomethane
ND 0.50 10/5/19 8:36 EEHg/L0.35 10/4/19SM21-22 6200B1Chloroethane
ND 0.50 10/5/19 8:36 EEHg/L0.17 10/4/19SM21-22 6200B1Chloroform
ND 1.0 10/5/19 8:36 EEHg/L0.45 10/4/19SM21-22 6200B1Chloromethane
ND 0.50 10/5/19 8:36 EEHg/L0.12 10/4/19SM21-22 6200B12-Chlorotoluene
ND 0.50 10/5/19 8:36 EEHg/L0.14 10/4/19SM21-22 6200B14-Chlorotoluene
ND 0.50 10/5/19 8:36 EEHg/L0.19 10/4/19SM21-22 6200B11,2-Dibromoethane (EDB)
ND 0.50 10/5/19 8:36 EEHg/L0.16 10/4/19SM21-22 6200B11,2-Dichlorobenzene
ND 0.50 10/5/19 8:36 EEHg/L0.12 10/4/19SM21-22 6200B11,3-Dichlorobenzene
ND 0.50 10/5/19 8:36 EEHg/L0.13 10/4/19SM21-22 6200B11,4-Dichlorobenzene
ND 0.50 10/5/19 8:36 EEHg/L0.26 10/4/19SM21-22 6200B1Dichlorodifluoromethane (Freon 12)
ND 0.50 10/5/19 8:36 EEHg/L0.16 10/4/19SM21-22 6200B11,1-Dichloroethane
ND 1.0 10/5/19 8:36 EEHg/L0.41 10/4/19SM21-22 6200B11,2-Dichloroethane
ND 0.50 10/5/19 8:36 EEHg/L0.32 10/4/19SM21-22 6200B11,1-Dichloroethylene
ND 0.50 10/5/19 8:36 EEHg/L0.13 10/4/19SM21-22 6200B1cis-1,2-Dichloroethylene
ND 0.50 10/5/19 8:36 EEHg/L0.31 10/4/19SM21-22 6200B1trans-1,2-Dichloroethylene
ND 0.50 10/5/19 8:36 EEHg/L0.20 10/4/19SM21-22 6200B11,2-Dichloropropane
ND 0.50 10/5/19 8:36 EEHg/L0.11 10/4/19SM21-22 6200B11,3-Dichloropropane
ND 0.50 10/5/19 8:36 EEHg/L0.20 10/4/19SM21-22 6200B12,2-Dichloropropane
ND 0.50 10/5/19 8:36 EEHg/L0.16 10/4/19SM21-22 6200B11,1-Dichloropropene
ND 0.50 10/5/19 8:36 EEHg/L0.13 10/4/19SM21-22 6200B1cis-1,3-Dichloropropene
ND 0.50 10/5/19 8:36 EEHg/L0.23 10/4/19SM21-22 6200B1trans-1,3-Dichloropropene
0.45 0.50 10/5/19 8:36 EEHg/L0.17 10/4/19SM21-22 6200B1JDiisopropyl Ether (DIPE)
ND 0.50 10/5/19 8:36 EEHg/L0.13 10/4/19SM21-22 6200B1Ethylbenzene
ND 5.0 10/5/19 8:36 EEHg/L1.5 10/4/19SM21-22 6200B12-Hexanone (MBK)
ND 0.50 10/5/19 8:36 EEHg/L0.17 10/4/19SM21-22 6200B1Isopropylbenzene (Cumene)
ND 0.50 10/5/19 8:36 EEHg/L0.20 10/4/19SM21-22 6200B1p-Isopropyltoluene (p-Cymene)
28 0.50 10/5/19 8:36 EEHg/L0.25 10/4/19SM21-22 6200B1Methyl tert-Butyl Ether (MTBE)
ND 5.0 10/5/19 8:36 EEHg/L0.34 10/4/19SM21-22 6200B1Methylene Chloride
ND 5.0 10/5/19 8:36 EEHg/L1.7 10/4/19SM21-22 6200B14-Methyl-2-pentanone (MIBK)
Page 10 of 49
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 10/2/2019
Work Order: 19J0185Sample Description:Project Location: Chapel Hill, NC
Sample ID: 19J0185-02
Field Sample #: MW-1
Sample Matrix: Ground Water
Sampled: 10/1/2019 10:43
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
ND 5.0 10/5/19 8:36 EEHg/L0.31 10/4/19SM21-22 6200B1Naphthalene
ND 0.50 10/5/19 8:36 EEHg/L0.13 10/4/19SM21-22 6200B1n-Propylbenzene
ND 0.50 10/5/19 8:36 EEHg/L0.11 10/4/19SM21-22 6200B1Styrene
ND 0.50 10/5/19 8:36 EEHg/L0.22 10/4/19SM21-22 6200B11,1,2,2-Tetrachloroethane
ND 0.50 10/5/19 8:36 EEHg/L0.18 10/4/19SM21-22 6200B1Tetrachloroethylene
ND 0.50 10/5/19 8:36 EEHg/L0.14 10/4/19SM21-22 6200B1Toluene
ND 2.0 10/5/19 8:36 EEHg/L0.57 10/4/19SM21-22 6200B11,2,3-Trichlorobenzene
ND 0.50 10/5/19 8:36 EEHg/L0.40 10/4/19SM21-22 6200B11,2,4-Trichlorobenzene
ND 0.50 10/5/19 8:36 EEHg/L0.20 10/4/19SM21-22 6200B11,1,1-Trichloroethane
ND 0.50 10/5/19 8:36 EEHg/L0.16 10/4/19SM21-22 6200B11,1,2-Trichloroethane
ND 0.50 10/5/19 8:36 EEHg/L0.24 10/4/19SM21-22 6200B1Trichloroethylene
ND 0.50 10/5/19 8:36 EEHg/L0.33 10/4/19SM21-22 6200B1Trichlorofluoromethane (Freon 11)
ND 0.50 10/5/19 8:36 EEHg/L0.25 10/4/19SM21-22 6200B11,2,3-Trichloropropane
ND 0.50 10/5/19 8:36 EEHg/L0.18 10/4/19SM21-22 6200B11,2,4-Trimethylbenzene
ND 0.50 10/5/19 8:36 EEHg/L0.14 10/4/19SM21-22 6200B11,3,5-Trimethylbenzene
ND 20 10/5/19 8:36 EEHg/L10 10/4/19SM21-22 6200B1Vinyl Acetate
ND 0.50 10/5/19 8:36 EEHg/L0.45 10/4/19SM21-22 6200B1Vinyl Chloride
ND 1.0 10/5/19 8:36 EEHg/L0.30 10/4/19SM21-22 6200B1m+p Xylene
ND 0.50 10/5/19 8:36 EEHg/L0.17 10/4/19SM21-22 6200B1o-Xylene
Surrogates % Recovery Recovery Limits Flag/Qual
1,2-Dichloroethane-d4 95.0 10/5/19 8:3670-130
Toluene-d8 97.5 10/5/19 8:3670-130
4-Bromofluorobenzene 96.4 10/5/19 8:3670-130
Page 11 of 49
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 10/2/2019
Work Order: 19J0185Sample Description:Project Location: Chapel Hill, NC
Sample ID: 19J0185-03
Field Sample #: MW-2
Sample Matrix: Ground Water
Sampled: 10/1/2019 11:16
[TOC_2]19J0185-03[TOC]
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
ND 50 10/5/19 9:05 EEHg/L3.8 10/4/19SM21-22 6200B1Acetone
ND 0.50 10/5/19 9:05 EEHg/L0.18 10/4/19SM21-22 6200B1Benzene
ND 0.50 10/5/19 9:05 EEHg/L0.15 10/4/19SM21-22 6200B1Bromobenzene
ND 0.50 10/5/19 9:05 EEHg/L0.32 10/4/19SM21-22 6200B1Bromochloromethane
ND 0.50 10/5/19 9:05 EEHg/L0.16 10/4/19SM21-22 6200B1Bromodichloromethane
ND 0.50 10/5/19 9:05 EEHg/L0.46 10/4/19SM21-22 6200B1Bromoform
ND 1.0 10/5/19 9:05 EEHg/L0.78 10/4/19SM21-22 6200B1Bromomethane
ND 5.0 10/5/19 9:05 EEHg/L1.9 10/4/19SM21-22 6200B12-Butanone (MEK)
ND 0.50 10/5/19 9:05 EEHg/L0.21 10/4/19SM21-22 6200B1n-Butylbenzene
ND 0.50 10/5/19 9:05 EEHg/L0.16 10/4/19SM21-22 6200B1sec-Butylbenzene
ND 0.50 10/5/19 9:05 EEHg/L0.17 10/4/19SM21-22 6200B1tert-Butylbenzene
ND 0.50 10/5/19 9:05 EEHg/L0.11 10/4/19SM21-22 6200B1Carbon Tetrachloride
ND 0.50 10/5/19 9:05 EEHg/L0.15 10/4/19SM21-22 6200B1Chlorobenzene
ND 50 10/5/19 9:05 EEHg/L11 10/4/19SM21-22 6200B1Ethanol
ND 0.50 10/5/19 9:05 EEHg/L0.21 10/4/19SM21-22 6200B1Chlorodibromomethane
ND 0.50 10/5/19 9:05 EEHg/L0.35 10/4/19SM21-22 6200B1Chloroethane
ND 0.50 10/5/19 9:05 EEHg/L0.17 10/4/19SM21-22 6200B1Chloroform
ND 1.0 10/5/19 9:05 EEHg/L0.45 10/4/19SM21-22 6200B1Chloromethane
ND 0.50 10/5/19 9:05 EEHg/L0.12 10/4/19SM21-22 6200B12-Chlorotoluene
ND 0.50 10/5/19 9:05 EEHg/L0.14 10/4/19SM21-22 6200B14-Chlorotoluene
ND 0.50 10/5/19 9:05 EEHg/L0.19 10/4/19SM21-22 6200B11,2-Dibromoethane (EDB)
ND 0.50 10/5/19 9:05 EEHg/L0.16 10/4/19SM21-22 6200B11,2-Dichlorobenzene
ND 0.50 10/5/19 9:05 EEHg/L0.12 10/4/19SM21-22 6200B11,3-Dichlorobenzene
ND 0.50 10/5/19 9:05 EEHg/L0.13 10/4/19SM21-22 6200B11,4-Dichlorobenzene
ND 0.50 10/5/19 9:05 EEHg/L0.26 10/4/19SM21-22 6200B1Dichlorodifluoromethane (Freon 12)
ND 0.50 10/5/19 9:05 EEHg/L0.16 10/4/19SM21-22 6200B11,1-Dichloroethane
ND 1.0 10/5/19 9:05 EEHg/L0.41 10/4/19SM21-22 6200B11,2-Dichloroethane
ND 0.50 10/5/19 9:05 EEHg/L0.32 10/4/19SM21-22 6200B11,1-Dichloroethylene
ND 0.50 10/5/19 9:05 EEHg/L0.13 10/4/19SM21-22 6200B1cis-1,2-Dichloroethylene
ND 0.50 10/5/19 9:05 EEHg/L0.31 10/4/19SM21-22 6200B1trans-1,2-Dichloroethylene
ND 0.50 10/5/19 9:05 EEHg/L0.20 10/4/19SM21-22 6200B11,2-Dichloropropane
ND 0.50 10/5/19 9:05 EEHg/L0.11 10/4/19SM21-22 6200B11,3-Dichloropropane
ND 0.50 10/5/19 9:05 EEHg/L0.20 10/4/19SM21-22 6200B12,2-Dichloropropane
ND 0.50 10/5/19 9:05 EEHg/L0.16 10/4/19SM21-22 6200B11,1-Dichloropropene
ND 0.50 10/5/19 9:05 EEHg/L0.13 10/4/19SM21-22 6200B1cis-1,3-Dichloropropene
ND 0.50 10/5/19 9:05 EEHg/L0.23 10/4/19SM21-22 6200B1trans-1,3-Dichloropropene
7.0 0.50 10/5/19 9:05 EEHg/L0.17 10/4/19SM21-22 6200B1Diisopropyl Ether (DIPE)
ND 0.50 10/5/19 9:05 EEHg/L0.13 10/4/19SM21-22 6200B1Ethylbenzene
ND 5.0 10/5/19 9:05 EEHg/L1.5 10/4/19SM21-22 6200B12-Hexanone (MBK)
ND 0.50 10/5/19 9:05 EEHg/L0.17 10/4/19SM21-22 6200B1Isopropylbenzene (Cumene)
ND 0.50 10/5/19 9:05 EEHg/L0.20 10/4/19SM21-22 6200B1p-Isopropyltoluene (p-Cymene)
68 0.50 10/5/19 9:05 EEHg/L0.25 10/4/19SM21-22 6200B1Methyl tert-Butyl Ether (MTBE)
ND 5.0 10/5/19 9:05 EEHg/L0.34 10/4/19SM21-22 6200B1Methylene Chloride
ND 5.0 10/5/19 9:05 EEHg/L1.7 10/4/19SM21-22 6200B14-Methyl-2-pentanone (MIBK)
Page 12 of 49
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 10/2/2019
Work Order: 19J0185Sample Description:Project Location: Chapel Hill, NC
Sample ID: 19J0185-03
Field Sample #: MW-2
Sample Matrix: Ground Water
Sampled: 10/1/2019 11:16
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
ND 5.0 10/5/19 9:05 EEHg/L0.31 10/4/19SM21-22 6200B1Naphthalene
ND 0.50 10/5/19 9:05 EEHg/L0.13 10/4/19SM21-22 6200B1n-Propylbenzene
ND 0.50 10/5/19 9:05 EEHg/L0.11 10/4/19SM21-22 6200B1Styrene
ND 0.50 10/5/19 9:05 EEHg/L0.22 10/4/19SM21-22 6200B11,1,2,2-Tetrachloroethane
ND 0.50 10/5/19 9:05 EEHg/L0.18 10/4/19SM21-22 6200B1Tetrachloroethylene
ND 0.50 10/5/19 9:05 EEHg/L0.14 10/4/19SM21-22 6200B1Toluene
ND 2.0 10/5/19 9:05 EEHg/L0.57 10/4/19SM21-22 6200B11,2,3-Trichlorobenzene
ND 0.50 10/5/19 9:05 EEHg/L0.40 10/4/19SM21-22 6200B11,2,4-Trichlorobenzene
ND 0.50 10/5/19 9:05 EEHg/L0.20 10/4/19SM21-22 6200B11,1,1-Trichloroethane
ND 0.50 10/5/19 9:05 EEHg/L0.16 10/4/19SM21-22 6200B11,1,2-Trichloroethane
ND 0.50 10/5/19 9:05 EEHg/L0.24 10/4/19SM21-22 6200B1Trichloroethylene
ND 0.50 10/5/19 9:05 EEHg/L0.33 10/4/19SM21-22 6200B1Trichlorofluoromethane (Freon 11)
ND 0.50 10/5/19 9:05 EEHg/L0.25 10/4/19SM21-22 6200B11,2,3-Trichloropropane
ND 0.50 10/5/19 9:05 EEHg/L0.18 10/4/19SM21-22 6200B11,2,4-Trimethylbenzene
ND 0.50 10/5/19 9:05 EEHg/L0.14 10/4/19SM21-22 6200B11,3,5-Trimethylbenzene
ND 20 10/5/19 9:05 EEHg/L10 10/4/19SM21-22 6200B1Vinyl Acetate
ND 0.50 10/5/19 9:05 EEHg/L0.45 10/4/19SM21-22 6200B1Vinyl Chloride
ND 1.0 10/5/19 9:05 EEHg/L0.30 10/4/19SM21-22 6200B1m+p Xylene
ND 0.50 10/5/19 9:05 EEHg/L0.17 10/4/19SM21-22 6200B1o-Xylene
Surrogates % Recovery Recovery Limits Flag/Qual
1,2-Dichloroethane-d4 95.4 10/5/19 9:0570-130
Toluene-d8 96.2 10/5/19 9:0570-130
4-Bromofluorobenzene 94.4 10/5/19 9:0570-130
Page 13 of 49
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 10/2/2019
Work Order: 19J0185Sample Description:Project Location: Chapel Hill, NC
Sample ID: 19J0185-04
Field Sample #: MW-3
Sample Matrix: Ground Water
Sampled: 10/1/2019 12:30
[TOC_2]19J0185-04[TOC]
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Sample Flags: RL-11 Volatile Organic Compounds by GC/MS
ND 25000 10/5/19 10:02 EEHg/L1900 10/4/19SM21-22 6200B500Acetone
24000 250 10/5/19 10:02 EEHg/L90 10/4/19SM21-22 6200B500Benzene
ND 250 10/5/19 10:02 EEHg/L75 10/4/19SM21-22 6200B500Bromobenzene
ND 250 10/5/19 10:02 EEHg/L160 10/4/19SM21-22 6200B500Bromochloromethane
ND 250 10/5/19 10:02 EEHg/L80 10/4/19SM21-22 6200B500Bromodichloromethane
ND 250 10/5/19 10:02 EEHg/L230 10/4/19SM21-22 6200B500Bromoform
ND 500 10/5/19 10:02 EEHg/L390 10/4/19SM21-22 6200B500Bromomethane
2400 2500 10/5/19 10:02 EEHg/L970 10/4/19SM21-22 6200B500J2-Butanone (MEK)
ND 250 10/5/19 10:02 EEHg/L100 10/4/19SM21-22 6200B500n-Butylbenzene
ND 250 10/5/19 10:02 EEHg/L80 10/4/19SM21-22 6200B500sec-Butylbenzene
ND 250 10/5/19 10:02 EEHg/L85 10/4/19SM21-22 6200B500tert-Butylbenzene
ND 250 10/5/19 10:02 EEHg/L55 10/4/19SM21-22 6200B500Carbon Tetrachloride
ND 250 10/5/19 10:02 EEHg/L75 10/4/19SM21-22 6200B500Chlorobenzene
ND 25000 10/5/19 10:02 EEHg/L5300 10/4/19SM21-22 6200B500Ethanol
ND 250 10/5/19 10:02 EEHg/L100 10/4/19SM21-22 6200B500Chlorodibromomethane
ND 250 10/5/19 10:02 EEHg/L180 10/4/19SM21-22 6200B500Chloroethane
ND 250 10/5/19 10:02 EEHg/L85 10/4/19SM21-22 6200B500Chloroform
ND 500 10/5/19 10:02 EEHg/L220 10/4/19SM21-22 6200B500Chloromethane
ND 250 10/5/19 10:02 EEHg/L60 10/4/19SM21-22 6200B5002-Chlorotoluene
ND 250 10/5/19 10:02 EEHg/L70 10/4/19SM21-22 6200B5004-Chlorotoluene
ND 250 10/5/19 10:02 EEHg/L95 10/4/19SM21-22 6200B5001,2-Dibromoethane (EDB)
ND 250 10/5/19 10:02 EEHg/L80 10/4/19SM21-22 6200B5001,2-Dichlorobenzene
ND 250 10/5/19 10:02 EEHg/L60 10/4/19SM21-22 6200B5001,3-Dichlorobenzene
ND 250 10/5/19 10:02 EEHg/L65 10/4/19SM21-22 6200B5001,4-Dichlorobenzene
ND 250 10/5/19 10:02 EEHg/L130 10/4/19SM21-22 6200B500Dichlorodifluoromethane (Freon 12)
ND 250 10/5/19 10:02 EEHg/L80 10/4/19SM21-22 6200B5001,1-Dichloroethane
ND 500 10/5/19 10:02 EEHg/L200 10/4/19SM21-22 6200B5001,2-Dichloroethane
ND 250 10/5/19 10:02 EEHg/L160 10/4/19SM21-22 6200B5001,1-Dichloroethylene
ND 250 10/5/19 10:02 EEHg/L65 10/4/19SM21-22 6200B500cis-1,2-Dichloroethylene
ND 250 10/5/19 10:02 EEHg/L160 10/4/19SM21-22 6200B500trans-1,2-Dichloroethylene
ND 250 10/5/19 10:02 EEHg/L100 10/4/19SM21-22 6200B5001,2-Dichloropropane
ND 250 10/5/19 10:02 EEHg/L55 10/4/19SM21-22 6200B5001,3-Dichloropropane
ND 250 10/5/19 10:02 EEHg/L100 10/4/19SM21-22 6200B5002,2-Dichloropropane
ND 250 10/5/19 10:02 EEHg/L80 10/4/19SM21-22 6200B5001,1-Dichloropropene
ND 250 10/5/19 10:02 EEHg/L65 10/4/19SM21-22 6200B500cis-1,3-Dichloropropene
ND 250 10/5/19 10:02 EEHg/L120 10/4/19SM21-22 6200B500trans-1,3-Dichloropropene
280 250 10/5/19 10:02 EEHg/L85 10/4/19SM21-22 6200B500Diisopropyl Ether (DIPE)
4200 250 10/5/19 10:02 EEHg/L65 10/4/19SM21-22 6200B500Ethylbenzene
810 2500 10/5/19 10:02 EEHg/L760 10/4/19SM21-22 6200B500J2-Hexanone (MBK)
140 250 10/5/19 10:02 EEHg/L85 10/4/19SM21-22 6200B500JIsopropylbenzene (Cumene)
ND 250 10/5/19 10:02 EEHg/L100 10/4/19SM21-22 6200B500p-Isopropyltoluene (p-Cymene)
3600 250 10/5/19 10:02 EEHg/L120 10/4/19SM21-22 6200B500Methyl tert-Butyl Ether (MTBE)
ND 2500 10/5/19 10:02 EEHg/L170 10/4/19SM21-22 6200B500Methylene Chloride
ND 2500 10/5/19 10:02 EEHg/L840 10/4/19SM21-22 6200B5004-Methyl-2-pentanone (MIBK)
Page 14 of 49
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 10/2/2019
Work Order: 19J0185Sample Description:Project Location: Chapel Hill, NC
Sample ID: 19J0185-04
Field Sample #: MW-3
Sample Matrix: Ground Water
Sampled: 10/1/2019 12:30
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Sample Flags: RL-11 Volatile Organic Compounds by GC/MS
2300 2500 10/5/19 10:02 EEHg/L160 10/4/19SM21-22 6200B500JNaphthalene
440 250 10/5/19 10:02 EEHg/L65 10/4/19SM21-22 6200B500n-Propylbenzene
ND 250 10/5/19 10:02 EEHg/L55 10/4/19SM21-22 6200B500Styrene
ND 250 10/5/19 10:02 EEHg/L110 10/4/19SM21-22 6200B5001,1,2,2-Tetrachloroethane
ND 250 10/5/19 10:02 EEHg/L90 10/4/19SM21-22 6200B500Tetrachloroethylene
48000 250 10/5/19 10:02 EEHg/L70 10/4/19SM21-22 6200B500Toluene
ND 1000 10/5/19 10:02 EEHg/L280 10/4/19SM21-22 6200B5001,2,3-Trichlorobenzene
ND 250 10/5/19 10:02 EEHg/L200 10/4/19SM21-22 6200B5001,2,4-Trichlorobenzene
ND 250 10/5/19 10:02 EEHg/L100 10/4/19SM21-22 6200B5001,1,1-Trichloroethane
ND 250 10/5/19 10:02 EEHg/L80 10/4/19SM21-22 6200B5001,1,2-Trichloroethane
ND 250 10/5/19 10:02 EEHg/L120 10/4/19SM21-22 6200B500Trichloroethylene
ND 250 10/5/19 10:02 EEHg/L160 10/4/19SM21-22 6200B500Trichlorofluoromethane (Freon 11)
ND 250 10/5/19 10:02 EEHg/L120 10/4/19SM21-22 6200B5001,2,3-Trichloropropane
2400 250 10/5/19 10:02 EEHg/L90 10/4/19SM21-22 6200B5001,2,4-Trimethylbenzene
780 250 10/5/19 10:02 EEHg/L70 10/4/19SM21-22 6200B5001,3,5-Trimethylbenzene
ND 10000 10/5/19 10:02 EEHg/L5100 10/4/19SM21-22 6200B500Vinyl Acetate
ND 250 10/5/19 10:02 EEHg/L220 10/4/19SM21-22 6200B500Vinyl Chloride
14000 500 10/5/19 10:02 EEHg/L150 10/4/19SM21-22 6200B500m+p Xylene
6600 250 10/5/19 10:02 EEHg/L85 10/4/19SM21-22 6200B500o-Xylene
Surrogates % Recovery Recovery Limits Flag/Qual
1,2-Dichloroethane-d4 93.7 10/5/19 10:0270-130
Toluene-d8 95.7 10/5/19 10:0270-130
4-Bromofluorobenzene 97.6 10/5/19 10:0270-130
Page 15 of 49
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 10/2/2019
Work Order: 19J0185Sample Description:Project Location: Chapel Hill, NC
Sample ID: 19J0185-05
Field Sample #: MW-4
Sample Matrix: Ground Water
Sampled: 10/1/2019 12:14
[TOC_2]19J0185-05[TOC]
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Sample Flags: RL-11 Volatile Organic Compounds by GC/MS
ND 500 10/5/19 9:33 EEHg/L38 10/4/19SM21-22 6200B10Acetone
410 5.0 10/5/19 9:33 EEHg/L1.8 10/4/19SM21-22 6200B10Benzene
ND 5.0 10/5/19 9:33 EEHg/L1.5 10/4/19SM21-22 6200B10Bromobenzene
ND 5.0 10/5/19 9:33 EEHg/L3.2 10/4/19SM21-22 6200B10Bromochloromethane
ND 5.0 10/5/19 9:33 EEHg/L1.6 10/4/19SM21-22 6200B10Bromodichloromethane
ND 5.0 10/5/19 9:33 EEHg/L4.6 10/4/19SM21-22 6200B10Bromoform
ND 10 10/5/19 9:33 EEHg/L7.8 10/4/19SM21-22 6200B10Bromomethane
ND 50 10/5/19 9:33 EEHg/L19 10/4/19SM21-22 6200B102-Butanone (MEK)
ND 5.0 10/5/19 9:33 EEHg/L2.1 10/4/19SM21-22 6200B10n-Butylbenzene
ND 5.0 10/5/19 9:33 EEHg/L1.6 10/4/19SM21-22 6200B10sec-Butylbenzene
ND 5.0 10/5/19 9:33 EEHg/L1.7 10/4/19SM21-22 6200B10tert-Butylbenzene
ND 5.0 10/5/19 9:33 EEHg/L1.1 10/4/19SM21-22 6200B10Carbon Tetrachloride
ND 5.0 10/5/19 9:33 EEHg/L1.5 10/4/19SM21-22 6200B10Chlorobenzene
ND 500 10/5/19 9:33 EEHg/L110 10/4/19SM21-22 6200B10Ethanol
ND 5.0 10/5/19 9:33 EEHg/L2.1 10/4/19SM21-22 6200B10Chlorodibromomethane
ND 5.0 10/5/19 9:33 EEHg/L3.5 10/4/19SM21-22 6200B10Chloroethane
ND 5.0 10/5/19 9:33 EEHg/L1.7 10/4/19SM21-22 6200B10Chloroform
ND 10 10/5/19 9:33 EEHg/L4.5 10/4/19SM21-22 6200B10Chloromethane
ND 5.0 10/5/19 9:33 EEHg/L1.2 10/4/19SM21-22 6200B102-Chlorotoluene
ND 5.0 10/5/19 9:33 EEHg/L1.4 10/4/19SM21-22 6200B104-Chlorotoluene
ND 5.0 10/5/19 9:33 EEHg/L1.9 10/4/19SM21-22 6200B101,2-Dibromoethane (EDB)
ND 5.0 10/5/19 9:33 EEHg/L1.6 10/4/19SM21-22 6200B101,2-Dichlorobenzene
ND 5.0 10/5/19 9:33 EEHg/L1.2 10/4/19SM21-22 6200B101,3-Dichlorobenzene
ND 5.0 10/5/19 9:33 EEHg/L1.3 10/4/19SM21-22 6200B101,4-Dichlorobenzene
ND 5.0 10/5/19 9:33 EEHg/L2.6 10/4/19SM21-22 6200B10Dichlorodifluoromethane (Freon 12)
ND 5.0 10/5/19 9:33 EEHg/L1.6 10/4/19SM21-22 6200B101,1-Dichloroethane
ND 10 10/5/19 9:33 EEHg/L4.1 10/4/19SM21-22 6200B101,2-Dichloroethane
ND 5.0 10/5/19 9:33 EEHg/L3.2 10/4/19SM21-22 6200B101,1-Dichloroethylene
ND 5.0 10/5/19 9:33 EEHg/L1.3 10/4/19SM21-22 6200B10cis-1,2-Dichloroethylene
ND 5.0 10/5/19 9:33 EEHg/L3.1 10/4/19SM21-22 6200B10trans-1,2-Dichloroethylene
ND 5.0 10/5/19 9:33 EEHg/L2.0 10/4/19SM21-22 6200B101,2-Dichloropropane
ND 5.0 10/5/19 9:33 EEHg/L1.1 10/4/19SM21-22 6200B101,3-Dichloropropane
ND 5.0 10/5/19 9:33 EEHg/L2.0 10/4/19SM21-22 6200B102,2-Dichloropropane
ND 5.0 10/5/19 9:33 EEHg/L1.6 10/4/19SM21-22 6200B101,1-Dichloropropene
ND 5.0 10/5/19 9:33 EEHg/L1.3 10/4/19SM21-22 6200B10cis-1,3-Dichloropropene
ND 5.0 10/5/19 9:33 EEHg/L2.3 10/4/19SM21-22 6200B10trans-1,3-Dichloropropene
68 5.0 10/5/19 9:33 EEHg/L1.7 10/4/19SM21-22 6200B10Diisopropyl Ether (DIPE)
81 5.0 10/5/19 9:33 EEHg/L1.3 10/4/19SM21-22 6200B10Ethylbenzene
ND 50 10/5/19 9:33 EEHg/L15 10/4/19SM21-22 6200B102-Hexanone (MBK)
3.8 5.0 10/5/19 9:33 EEHg/L1.7 10/4/19SM21-22 6200B10JIsopropylbenzene (Cumene)
ND 5.0 10/5/19 9:33 EEHg/L2.0 10/4/19SM21-22 6200B10p-Isopropyltoluene (p-Cymene)
400 5.0 10/5/19 9:33 EEHg/L2.5 10/4/19SM21-22 6200B10Methyl tert-Butyl Ether (MTBE)
ND 50 10/5/19 9:33 EEHg/L3.4 10/4/19SM21-22 6200B10Methylene Chloride
ND 50 10/5/19 9:33 EEHg/L17 10/4/19SM21-22 6200B104-Methyl-2-pentanone (MIBK)
Page 16 of 49
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 10/2/2019
Work Order: 19J0185Sample Description:Project Location: Chapel Hill, NC
Sample ID: 19J0185-05
Field Sample #: MW-4
Sample Matrix: Ground Water
Sampled: 10/1/2019 12:14
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Sample Flags: RL-11 Volatile Organic Compounds by GC/MS
ND 50 10/5/19 9:33 EEHg/L3.1 10/4/19SM21-22 6200B10Naphthalene
6.8 5.0 10/5/19 9:33 EEHg/L1.3 10/4/19SM21-22 6200B10n-Propylbenzene
ND 5.0 10/5/19 9:33 EEHg/L1.1 10/4/19SM21-22 6200B10Styrene
ND 5.0 10/5/19 9:33 EEHg/L2.2 10/4/19SM21-22 6200B101,1,2,2-Tetrachloroethane
ND 5.0 10/5/19 9:33 EEHg/L1.8 10/4/19SM21-22 6200B10Tetrachloroethylene
6.7 5.0 10/5/19 9:33 EEHg/L1.4 10/4/19SM21-22 6200B10Toluene
ND 20 10/5/19 9:33 EEHg/L5.7 10/4/19SM21-22 6200B101,2,3-Trichlorobenzene
ND 5.0 10/5/19 9:33 EEHg/L4.0 10/4/19SM21-22 6200B101,2,4-Trichlorobenzene
ND 5.0 10/5/19 9:33 EEHg/L2.0 10/4/19SM21-22 6200B101,1,1-Trichloroethane
ND 5.0 10/5/19 9:33 EEHg/L1.6 10/4/19SM21-22 6200B101,1,2-Trichloroethane
ND 5.0 10/5/19 9:33 EEHg/L2.4 10/4/19SM21-22 6200B10Trichloroethylene
ND 5.0 10/5/19 9:33 EEHg/L3.3 10/4/19SM21-22 6200B10Trichlorofluoromethane (Freon 11)
ND 5.0 10/5/19 9:33 EEHg/L2.5 10/4/19SM21-22 6200B101,2,3-Trichloropropane
27 5.0 10/5/19 9:33 EEHg/L1.8 10/4/19SM21-22 6200B101,2,4-Trimethylbenzene
26 5.0 10/5/19 9:33 EEHg/L1.4 10/4/19SM21-22 6200B101,3,5-Trimethylbenzene
ND 200 10/5/19 9:33 EEHg/L100 10/4/19SM21-22 6200B10Vinyl Acetate
ND 5.0 10/5/19 9:33 EEHg/L4.5 10/4/19SM21-22 6200B10Vinyl Chloride
160 10 10/5/19 9:33 EEHg/L3.0 10/4/19SM21-22 6200B10m+p Xylene
46 5.0 10/5/19 9:33 EEHg/L1.7 10/4/19SM21-22 6200B10o-Xylene
Surrogates % Recovery Recovery Limits Flag/Qual
1,2-Dichloroethane-d4 95.2 10/5/19 9:3370-130
Toluene-d8 97.2 10/5/19 9:3370-130
4-Bromofluorobenzene 96.3 10/5/19 9:3370-130
Page 17 of 49
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 10/2/2019
Work Order: 19J0185Sample Description:Project Location: Chapel Hill, NC
Sample ID: 19J0185-06
Field Sample #: MW-5
Sample Matrix: Ground Water
Sampled: 10/1/2019 10:31
[TOC_2]19J0185-06[TOC]
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
ND 50 10/5/19 3:49 EEHg/L3.8 10/4/19SM21-22 6200B1Acetone
ND 0.50 10/5/19 3:49 EEHg/L0.18 10/4/19SM21-22 6200B1Benzene
ND 0.50 10/5/19 3:49 EEHg/L0.15 10/4/19SM21-22 6200B1Bromobenzene
ND 0.50 10/5/19 3:49 EEHg/L0.32 10/4/19SM21-22 6200B1Bromochloromethane
ND 0.50 10/5/19 3:49 EEHg/L0.16 10/4/19SM21-22 6200B1Bromodichloromethane
ND 0.50 10/5/19 3:49 EEHg/L0.46 10/4/19SM21-22 6200B1Bromoform
ND 1.0 10/5/19 3:49 EEHg/L0.78 10/4/19SM21-22 6200B1Bromomethane
ND 5.0 10/5/19 3:49 EEHg/L1.9 10/4/19SM21-22 6200B12-Butanone (MEK)
ND 0.50 10/5/19 3:49 EEHg/L0.21 10/4/19SM21-22 6200B1n-Butylbenzene
ND 0.50 10/5/19 3:49 EEHg/L0.16 10/4/19SM21-22 6200B1sec-Butylbenzene
ND 0.50 10/5/19 3:49 EEHg/L0.17 10/4/19SM21-22 6200B1tert-Butylbenzene
ND 0.50 10/5/19 3:49 EEHg/L0.11 10/4/19SM21-22 6200B1Carbon Tetrachloride
ND 0.50 10/5/19 3:49 EEHg/L0.15 10/4/19SM21-22 6200B1Chlorobenzene
ND 50 10/5/19 3:49 EEHg/L11 10/4/19SM21-22 6200B1Ethanol
ND 0.50 10/5/19 3:49 EEHg/L0.21 10/4/19SM21-22 6200B1Chlorodibromomethane
ND 0.50 10/5/19 3:49 EEHg/L0.35 10/4/19SM21-22 6200B1Chloroethane
ND 0.50 10/5/19 3:49 EEHg/L0.17 10/4/19SM21-22 6200B1Chloroform
ND 1.0 10/5/19 3:49 EEHg/L0.45 10/4/19SM21-22 6200B1Chloromethane
ND 0.50 10/5/19 3:49 EEHg/L0.12 10/4/19SM21-22 6200B12-Chlorotoluene
ND 0.50 10/5/19 3:49 EEHg/L0.14 10/4/19SM21-22 6200B14-Chlorotoluene
ND 0.50 10/5/19 3:49 EEHg/L0.19 10/4/19SM21-22 6200B11,2-Dibromoethane (EDB)
ND 0.50 10/5/19 3:49 EEHg/L0.16 10/4/19SM21-22 6200B11,2-Dichlorobenzene
ND 0.50 10/5/19 3:49 EEHg/L0.12 10/4/19SM21-22 6200B11,3-Dichlorobenzene
ND 0.50 10/5/19 3:49 EEHg/L0.13 10/4/19SM21-22 6200B11,4-Dichlorobenzene
ND 0.50 10/5/19 3:49 EEHg/L0.26 10/4/19SM21-22 6200B1Dichlorodifluoromethane (Freon 12)
ND 0.50 10/5/19 3:49 EEHg/L0.16 10/4/19SM21-22 6200B11,1-Dichloroethane
ND 1.0 10/5/19 3:49 EEHg/L0.41 10/4/19SM21-22 6200B11,2-Dichloroethane
ND 0.50 10/5/19 3:49 EEHg/L0.32 10/4/19SM21-22 6200B11,1-Dichloroethylene
ND 0.50 10/5/19 3:49 EEHg/L0.13 10/4/19SM21-22 6200B1cis-1,2-Dichloroethylene
ND 0.50 10/5/19 3:49 EEHg/L0.31 10/4/19SM21-22 6200B1trans-1,2-Dichloroethylene
ND 0.50 10/5/19 3:49 EEHg/L0.20 10/4/19SM21-22 6200B11,2-Dichloropropane
ND 0.50 10/5/19 3:49 EEHg/L0.11 10/4/19SM21-22 6200B11,3-Dichloropropane
ND 0.50 10/5/19 3:49 EEHg/L0.20 10/4/19SM21-22 6200B12,2-Dichloropropane
ND 0.50 10/5/19 3:49 EEHg/L0.16 10/4/19SM21-22 6200B11,1-Dichloropropene
ND 0.50 10/5/19 3:49 EEHg/L0.13 10/4/19SM21-22 6200B1cis-1,3-Dichloropropene
ND 0.50 10/5/19 3:49 EEHg/L0.23 10/4/19SM21-22 6200B1trans-1,3-Dichloropropene
ND 0.50 10/5/19 3:49 EEHg/L0.17 10/4/19SM21-22 6200B1Diisopropyl Ether (DIPE)
ND 0.50 10/5/19 3:49 EEHg/L0.13 10/4/19SM21-22 6200B1Ethylbenzene
ND 5.0 10/5/19 3:49 EEHg/L1.5 10/4/19SM21-22 6200B12-Hexanone (MBK)
ND 0.50 10/5/19 3:49 EEHg/L0.17 10/4/19SM21-22 6200B1Isopropylbenzene (Cumene)
ND 0.50 10/5/19 3:49 EEHg/L0.20 10/4/19SM21-22 6200B1p-Isopropyltoluene (p-Cymene)
ND 0.50 10/5/19 3:49 EEHg/L0.25 10/4/19SM21-22 6200B1Methyl tert-Butyl Ether (MTBE)
ND 5.0 10/5/19 3:49 EEHg/L0.34 10/4/19SM21-22 6200B1Methylene Chloride
ND 5.0 10/5/19 3:49 EEHg/L1.7 10/4/19SM21-22 6200B14-Methyl-2-pentanone (MIBK)
Page 18 of 49
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 10/2/2019
Work Order: 19J0185Sample Description:Project Location: Chapel Hill, NC
Sample ID: 19J0185-06
Field Sample #: MW-5
Sample Matrix: Ground Water
Sampled: 10/1/2019 10:31
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
ND 5.0 10/5/19 3:49 EEHg/L0.31 10/4/19SM21-22 6200B1Naphthalene
ND 0.50 10/5/19 3:49 EEHg/L0.13 10/4/19SM21-22 6200B1n-Propylbenzene
ND 0.50 10/5/19 3:49 EEHg/L0.11 10/4/19SM21-22 6200B1Styrene
ND 0.50 10/5/19 3:49 EEHg/L0.22 10/4/19SM21-22 6200B11,1,2,2-Tetrachloroethane
ND 0.50 10/5/19 3:49 EEHg/L0.18 10/4/19SM21-22 6200B1Tetrachloroethylene
ND 0.50 10/5/19 3:49 EEHg/L0.14 10/4/19SM21-22 6200B1Toluene
ND 2.0 10/5/19 3:49 EEHg/L0.57 10/4/19SM21-22 6200B11,2,3-Trichlorobenzene
ND 0.50 10/5/19 3:49 EEHg/L0.40 10/4/19SM21-22 6200B11,2,4-Trichlorobenzene
ND 0.50 10/5/19 3:49 EEHg/L0.20 10/4/19SM21-22 6200B11,1,1-Trichloroethane
ND 0.50 10/5/19 3:49 EEHg/L0.16 10/4/19SM21-22 6200B11,1,2-Trichloroethane
ND 0.50 10/5/19 3:49 EEHg/L0.24 10/4/19SM21-22 6200B1Trichloroethylene
ND 0.50 10/5/19 3:49 EEHg/L0.33 10/4/19SM21-22 6200B1Trichlorofluoromethane (Freon 11)
ND 0.50 10/5/19 3:49 EEHg/L0.25 10/4/19SM21-22 6200B11,2,3-Trichloropropane
ND 0.50 10/5/19 3:49 EEHg/L0.18 10/4/19SM21-22 6200B11,2,4-Trimethylbenzene
ND 0.50 10/5/19 3:49 EEHg/L0.14 10/4/19SM21-22 6200B11,3,5-Trimethylbenzene
ND 20 10/5/19 3:49 EEHg/L10 10/4/19SM21-22 6200B1Vinyl Acetate
ND 0.50 10/5/19 3:49 EEHg/L0.45 10/4/19SM21-22 6200B1Vinyl Chloride
ND 1.0 10/5/19 3:49 EEHg/L0.30 10/4/19SM21-22 6200B1m+p Xylene
ND 0.50 10/5/19 3:49 EEHg/L0.17 10/4/19SM21-22 6200B1o-Xylene
Surrogates % Recovery Recovery Limits Flag/Qual
1,2-Dichloroethane-d4 94.1 10/5/19 3:4970-130
Toluene-d8 97.2 10/5/19 3:4970-130
4-Bromofluorobenzene 83.9 10/5/19 3:4970-130
Page 19 of 49
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 10/2/2019
Work Order: 19J0185Sample Description:Project Location: Chapel Hill, NC
Sample ID: 19J0185-07
Field Sample #: MW-6
Sample Matrix: Ground Water
Sampled: 10/1/2019 10:15
[TOC_2]19J0185-07[TOC]
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
ND 50 10/5/19 4:17 EEHg/L3.8 10/4/19SM21-22 6200B1Acetone
ND 0.50 10/5/19 4:17 EEHg/L0.18 10/4/19SM21-22 6200B1Benzene
ND 0.50 10/5/19 4:17 EEHg/L0.15 10/4/19SM21-22 6200B1Bromobenzene
ND 0.50 10/5/19 4:17 EEHg/L0.32 10/4/19SM21-22 6200B1Bromochloromethane
ND 0.50 10/5/19 4:17 EEHg/L0.16 10/4/19SM21-22 6200B1Bromodichloromethane
ND 0.50 10/5/19 4:17 EEHg/L0.46 10/4/19SM21-22 6200B1Bromoform
ND 1.0 10/5/19 4:17 EEHg/L0.78 10/4/19SM21-22 6200B1Bromomethane
ND 5.0 10/5/19 4:17 EEHg/L1.9 10/4/19SM21-22 6200B12-Butanone (MEK)
ND 0.50 10/5/19 4:17 EEHg/L0.21 10/4/19SM21-22 6200B1n-Butylbenzene
ND 0.50 10/5/19 4:17 EEHg/L0.16 10/4/19SM21-22 6200B1sec-Butylbenzene
ND 0.50 10/5/19 4:17 EEHg/L0.17 10/4/19SM21-22 6200B1tert-Butylbenzene
ND 0.50 10/5/19 4:17 EEHg/L0.11 10/4/19SM21-22 6200B1Carbon Tetrachloride
ND 0.50 10/5/19 4:17 EEHg/L0.15 10/4/19SM21-22 6200B1Chlorobenzene
ND 50 10/5/19 4:17 EEHg/L11 10/4/19SM21-22 6200B1Ethanol
ND 0.50 10/5/19 4:17 EEHg/L0.21 10/4/19SM21-22 6200B1Chlorodibromomethane
ND 0.50 10/5/19 4:17 EEHg/L0.35 10/4/19SM21-22 6200B1Chloroethane
ND 0.50 10/5/19 4:17 EEHg/L0.17 10/4/19SM21-22 6200B1Chloroform
ND 1.0 10/5/19 4:17 EEHg/L0.45 10/4/19SM21-22 6200B1Chloromethane
ND 0.50 10/5/19 4:17 EEHg/L0.12 10/4/19SM21-22 6200B12-Chlorotoluene
ND 0.50 10/5/19 4:17 EEHg/L0.14 10/4/19SM21-22 6200B14-Chlorotoluene
ND 0.50 10/5/19 4:17 EEHg/L0.19 10/4/19SM21-22 6200B11,2-Dibromoethane (EDB)
ND 0.50 10/5/19 4:17 EEHg/L0.16 10/4/19SM21-22 6200B11,2-Dichlorobenzene
ND 0.50 10/5/19 4:17 EEHg/L0.12 10/4/19SM21-22 6200B11,3-Dichlorobenzene
ND 0.50 10/5/19 4:17 EEHg/L0.13 10/4/19SM21-22 6200B11,4-Dichlorobenzene
ND 0.50 10/5/19 4:17 EEHg/L0.26 10/4/19SM21-22 6200B1Dichlorodifluoromethane (Freon 12)
ND 0.50 10/5/19 4:17 EEHg/L0.16 10/4/19SM21-22 6200B11,1-Dichloroethane
ND 1.0 10/5/19 4:17 EEHg/L0.41 10/4/19SM21-22 6200B11,2-Dichloroethane
ND 0.50 10/5/19 4:17 EEHg/L0.32 10/4/19SM21-22 6200B11,1-Dichloroethylene
ND 0.50 10/5/19 4:17 EEHg/L0.13 10/4/19SM21-22 6200B1cis-1,2-Dichloroethylene
ND 0.50 10/5/19 4:17 EEHg/L0.31 10/4/19SM21-22 6200B1trans-1,2-Dichloroethylene
ND 0.50 10/5/19 4:17 EEHg/L0.20 10/4/19SM21-22 6200B11,2-Dichloropropane
ND 0.50 10/5/19 4:17 EEHg/L0.11 10/4/19SM21-22 6200B11,3-Dichloropropane
ND 0.50 10/5/19 4:17 EEHg/L0.20 10/4/19SM21-22 6200B12,2-Dichloropropane
ND 0.50 10/5/19 4:17 EEHg/L0.16 10/4/19SM21-22 6200B11,1-Dichloropropene
ND 0.50 10/5/19 4:17 EEHg/L0.13 10/4/19SM21-22 6200B1cis-1,3-Dichloropropene
ND 0.50 10/5/19 4:17 EEHg/L0.23 10/4/19SM21-22 6200B1trans-1,3-Dichloropropene
ND 0.50 10/5/19 4:17 EEHg/L0.17 10/4/19SM21-22 6200B1Diisopropyl Ether (DIPE)
ND 0.50 10/5/19 4:17 EEHg/L0.13 10/4/19SM21-22 6200B1Ethylbenzene
ND 5.0 10/5/19 4:17 EEHg/L1.5 10/4/19SM21-22 6200B12-Hexanone (MBK)
ND 0.50 10/5/19 4:17 EEHg/L0.17 10/4/19SM21-22 6200B1Isopropylbenzene (Cumene)
ND 0.50 10/5/19 4:17 EEHg/L0.20 10/4/19SM21-22 6200B1p-Isopropyltoluene (p-Cymene)
ND 0.50 10/5/19 4:17 EEHg/L0.25 10/4/19SM21-22 6200B1Methyl tert-Butyl Ether (MTBE)
ND 5.0 10/5/19 4:17 EEHg/L0.34 10/4/19SM21-22 6200B1Methylene Chloride
ND 5.0 10/5/19 4:17 EEHg/L1.7 10/4/19SM21-22 6200B14-Methyl-2-pentanone (MIBK)
Page 20 of 49
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 10/2/2019
Work Order: 19J0185Sample Description:Project Location: Chapel Hill, NC
Sample ID: 19J0185-07
Field Sample #: MW-6
Sample Matrix: Ground Water
Sampled: 10/1/2019 10:15
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
ND 5.0 10/5/19 4:17 EEHg/L0.31 10/4/19SM21-22 6200B1Naphthalene
ND 0.50 10/5/19 4:17 EEHg/L0.13 10/4/19SM21-22 6200B1n-Propylbenzene
ND 0.50 10/5/19 4:17 EEHg/L0.11 10/4/19SM21-22 6200B1Styrene
ND 0.50 10/5/19 4:17 EEHg/L0.22 10/4/19SM21-22 6200B11,1,2,2-Tetrachloroethane
ND 0.50 10/5/19 4:17 EEHg/L0.18 10/4/19SM21-22 6200B1Tetrachloroethylene
ND 0.50 10/5/19 4:17 EEHg/L0.14 10/4/19SM21-22 6200B1Toluene
ND 2.0 10/5/19 4:17 EEHg/L0.57 10/4/19SM21-22 6200B11,2,3-Trichlorobenzene
ND 0.50 10/5/19 4:17 EEHg/L0.40 10/4/19SM21-22 6200B11,2,4-Trichlorobenzene
ND 0.50 10/5/19 4:17 EEHg/L0.20 10/4/19SM21-22 6200B11,1,1-Trichloroethane
ND 0.50 10/5/19 4:17 EEHg/L0.16 10/4/19SM21-22 6200B11,1,2-Trichloroethane
ND 0.50 10/5/19 4:17 EEHg/L0.24 10/4/19SM21-22 6200B1Trichloroethylene
ND 0.50 10/5/19 4:17 EEHg/L0.33 10/4/19SM21-22 6200B1Trichlorofluoromethane (Freon 11)
ND 0.50 10/5/19 4:17 EEHg/L0.25 10/4/19SM21-22 6200B11,2,3-Trichloropropane
ND 0.50 10/5/19 4:17 EEHg/L0.18 10/4/19SM21-22 6200B11,2,4-Trimethylbenzene
ND 0.50 10/5/19 4:17 EEHg/L0.14 10/4/19SM21-22 6200B11,3,5-Trimethylbenzene
ND 20 10/5/19 4:17 EEHg/L10 10/4/19SM21-22 6200B1Vinyl Acetate
ND 0.50 10/5/19 4:17 EEHg/L0.45 10/4/19SM21-22 6200B1Vinyl Chloride
ND 1.0 10/5/19 4:17 EEHg/L0.30 10/4/19SM21-22 6200B1m+p Xylene
ND 0.50 10/5/19 4:17 EEHg/L0.17 10/4/19SM21-22 6200B1o-Xylene
Surrogates % Recovery Recovery Limits Flag/Qual
1,2-Dichloroethane-d4 96.4 10/5/19 4:1770-130
Toluene-d8 98.4 10/5/19 4:1770-130
4-Bromofluorobenzene 94.1 10/5/19 4:1770-130
Page 21 of 49
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 10/2/2019
Work Order: 19J0185Sample Description:Project Location: Chapel Hill, NC
Sample ID: 19J0185-08
Field Sample #: MW-7
Sample Matrix: Ground Water
Sampled: 10/1/2019 15:00
[TOC_2]19J0185-08[TOC]
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
ND 50 10/5/19 4:46 EEHg/L3.8 10/4/19SM21-22 6200B1Acetone
ND 0.50 10/5/19 4:46 EEHg/L0.18 10/4/19SM21-22 6200B1Benzene
ND 0.50 10/5/19 4:46 EEHg/L0.15 10/4/19SM21-22 6200B1Bromobenzene
ND 0.50 10/5/19 4:46 EEHg/L0.32 10/4/19SM21-22 6200B1Bromochloromethane
ND 0.50 10/5/19 4:46 EEHg/L0.16 10/4/19SM21-22 6200B1Bromodichloromethane
ND 0.50 10/5/19 4:46 EEHg/L0.46 10/4/19SM21-22 6200B1Bromoform
ND 1.0 10/5/19 4:46 EEHg/L0.78 10/4/19SM21-22 6200B1Bromomethane
ND 5.0 10/5/19 4:46 EEHg/L1.9 10/4/19SM21-22 6200B12-Butanone (MEK)
ND 0.50 10/5/19 4:46 EEHg/L0.21 10/4/19SM21-22 6200B1n-Butylbenzene
ND 0.50 10/5/19 4:46 EEHg/L0.16 10/4/19SM21-22 6200B1sec-Butylbenzene
ND 0.50 10/5/19 4:46 EEHg/L0.17 10/4/19SM21-22 6200B1tert-Butylbenzene
ND 0.50 10/5/19 4:46 EEHg/L0.11 10/4/19SM21-22 6200B1Carbon Tetrachloride
ND 0.50 10/5/19 4:46 EEHg/L0.15 10/4/19SM21-22 6200B1Chlorobenzene
ND 50 10/5/19 4:46 EEHg/L11 10/4/19SM21-22 6200B1Ethanol
ND 0.50 10/5/19 4:46 EEHg/L0.21 10/4/19SM21-22 6200B1Chlorodibromomethane
ND 0.50 10/5/19 4:46 EEHg/L0.35 10/4/19SM21-22 6200B1Chloroethane
ND 0.50 10/5/19 4:46 EEHg/L0.17 10/4/19SM21-22 6200B1Chloroform
ND 1.0 10/5/19 4:46 EEHg/L0.45 10/4/19SM21-22 6200B1Chloromethane
ND 0.50 10/5/19 4:46 EEHg/L0.12 10/4/19SM21-22 6200B12-Chlorotoluene
ND 0.50 10/5/19 4:46 EEHg/L0.14 10/4/19SM21-22 6200B14-Chlorotoluene
ND 0.50 10/5/19 4:46 EEHg/L0.19 10/4/19SM21-22 6200B11,2-Dibromoethane (EDB)
ND 0.50 10/5/19 4:46 EEHg/L0.16 10/4/19SM21-22 6200B11,2-Dichlorobenzene
ND 0.50 10/5/19 4:46 EEHg/L0.12 10/4/19SM21-22 6200B11,3-Dichlorobenzene
ND 0.50 10/5/19 4:46 EEHg/L0.13 10/4/19SM21-22 6200B11,4-Dichlorobenzene
ND 0.50 10/5/19 4:46 EEHg/L0.26 10/4/19SM21-22 6200B1Dichlorodifluoromethane (Freon 12)
ND 0.50 10/5/19 4:46 EEHg/L0.16 10/4/19SM21-22 6200B11,1-Dichloroethane
ND 1.0 10/5/19 4:46 EEHg/L0.41 10/4/19SM21-22 6200B11,2-Dichloroethane
ND 0.50 10/5/19 4:46 EEHg/L0.32 10/4/19SM21-22 6200B11,1-Dichloroethylene
ND 0.50 10/5/19 4:46 EEHg/L0.13 10/4/19SM21-22 6200B1cis-1,2-Dichloroethylene
ND 0.50 10/5/19 4:46 EEHg/L0.31 10/4/19SM21-22 6200B1trans-1,2-Dichloroethylene
ND 0.50 10/5/19 4:46 EEHg/L0.20 10/4/19SM21-22 6200B11,2-Dichloropropane
ND 0.50 10/5/19 4:46 EEHg/L0.11 10/4/19SM21-22 6200B11,3-Dichloropropane
ND 0.50 10/5/19 4:46 EEHg/L0.20 10/4/19SM21-22 6200B12,2-Dichloropropane
ND 0.50 10/5/19 4:46 EEHg/L0.16 10/4/19SM21-22 6200B11,1-Dichloropropene
ND 0.50 10/5/19 4:46 EEHg/L0.13 10/4/19SM21-22 6200B1cis-1,3-Dichloropropene
ND 0.50 10/5/19 4:46 EEHg/L0.23 10/4/19SM21-22 6200B1trans-1,3-Dichloropropene
ND 0.50 10/5/19 4:46 EEHg/L0.17 10/4/19SM21-22 6200B1Diisopropyl Ether (DIPE)
ND 0.50 10/5/19 4:46 EEHg/L0.13 10/4/19SM21-22 6200B1Ethylbenzene
ND 5.0 10/5/19 4:46 EEHg/L1.5 10/4/19SM21-22 6200B12-Hexanone (MBK)
ND 0.50 10/5/19 4:46 EEHg/L0.17 10/4/19SM21-22 6200B1Isopropylbenzene (Cumene)
ND 0.50 10/5/19 4:46 EEHg/L0.20 10/4/19SM21-22 6200B1p-Isopropyltoluene (p-Cymene)
2.8 0.50 10/5/19 4:46 EEHg/L0.25 10/4/19SM21-22 6200B1Methyl tert-Butyl Ether (MTBE)
ND 5.0 10/5/19 4:46 EEHg/L0.34 10/4/19SM21-22 6200B1Methylene Chloride
ND 5.0 10/5/19 4:46 EEHg/L1.7 10/4/19SM21-22 6200B14-Methyl-2-pentanone (MIBK)
Page 22 of 49
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 10/2/2019
Work Order: 19J0185Sample Description:Project Location: Chapel Hill, NC
Sample ID: 19J0185-08
Field Sample #: MW-7
Sample Matrix: Ground Water
Sampled: 10/1/2019 15:00
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
ND 5.0 10/5/19 4:46 EEHg/L0.31 10/4/19SM21-22 6200B1Naphthalene
ND 0.50 10/5/19 4:46 EEHg/L0.13 10/4/19SM21-22 6200B1n-Propylbenzene
ND 0.50 10/5/19 4:46 EEHg/L0.11 10/4/19SM21-22 6200B1Styrene
ND 0.50 10/5/19 4:46 EEHg/L0.22 10/4/19SM21-22 6200B11,1,2,2-Tetrachloroethane
ND 0.50 10/5/19 4:46 EEHg/L0.18 10/4/19SM21-22 6200B1Tetrachloroethylene
ND 0.50 10/5/19 4:46 EEHg/L0.14 10/4/19SM21-22 6200B1Toluene
ND 2.0 10/5/19 4:46 EEHg/L0.57 10/4/19SM21-22 6200B11,2,3-Trichlorobenzene
ND 0.50 10/5/19 4:46 EEHg/L0.40 10/4/19SM21-22 6200B11,2,4-Trichlorobenzene
ND 0.50 10/5/19 4:46 EEHg/L0.20 10/4/19SM21-22 6200B11,1,1-Trichloroethane
ND 0.50 10/5/19 4:46 EEHg/L0.16 10/4/19SM21-22 6200B11,1,2-Trichloroethane
ND 0.50 10/5/19 4:46 EEHg/L0.24 10/4/19SM21-22 6200B1Trichloroethylene
ND 0.50 10/5/19 4:46 EEHg/L0.33 10/4/19SM21-22 6200B1Trichlorofluoromethane (Freon 11)
ND 0.50 10/5/19 4:46 EEHg/L0.25 10/4/19SM21-22 6200B11,2,3-Trichloropropane
ND 0.50 10/5/19 4:46 EEHg/L0.18 10/4/19SM21-22 6200B11,2,4-Trimethylbenzene
ND 0.50 10/5/19 4:46 EEHg/L0.14 10/4/19SM21-22 6200B11,3,5-Trimethylbenzene
ND 20 10/5/19 4:46 EEHg/L10 10/4/19SM21-22 6200B1Vinyl Acetate
ND 0.50 10/5/19 4:46 EEHg/L0.45 10/4/19SM21-22 6200B1Vinyl Chloride
ND 1.0 10/5/19 4:46 EEHg/L0.30 10/4/19SM21-22 6200B1m+p Xylene
ND 0.50 10/5/19 4:46 EEHg/L0.17 10/4/19SM21-22 6200B1o-Xylene
Surrogates % Recovery Recovery Limits Flag/Qual
1,2-Dichloroethane-d4 92.5 10/5/19 4:4670-130
Toluene-d8 101 10/5/19 4:4670-130
4-Bromofluorobenzene 93.5 10/5/19 4:4670-130
Page 23 of 49
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 10/2/2019
Work Order: 19J0185Sample Description:Project Location: Chapel Hill, NC
Sample ID: 19J0185-09
Field Sample #: MW-8
Sample Matrix: Ground Water
Sampled: 10/1/2019 14:43
[TOC_2]19J0185-09[TOC]
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
ND 50 10/5/19 5:15 EEHg/L3.8 10/4/19SM21-22 6200B1Acetone
ND 0.50 10/5/19 5:15 EEHg/L0.18 10/4/19SM21-22 6200B1Benzene
ND 0.50 10/5/19 5:15 EEHg/L0.15 10/4/19SM21-22 6200B1Bromobenzene
ND 0.50 10/5/19 5:15 EEHg/L0.32 10/4/19SM21-22 6200B1Bromochloromethane
ND 0.50 10/5/19 5:15 EEHg/L0.16 10/4/19SM21-22 6200B1Bromodichloromethane
ND 0.50 10/5/19 5:15 EEHg/L0.46 10/4/19SM21-22 6200B1Bromoform
ND 1.0 10/5/19 5:15 EEHg/L0.78 10/4/19SM21-22 6200B1Bromomethane
ND 5.0 10/5/19 5:15 EEHg/L1.9 10/4/19SM21-22 6200B12-Butanone (MEK)
ND 0.50 10/5/19 5:15 EEHg/L0.21 10/4/19SM21-22 6200B1n-Butylbenzene
ND 0.50 10/5/19 5:15 EEHg/L0.16 10/4/19SM21-22 6200B1sec-Butylbenzene
ND 0.50 10/5/19 5:15 EEHg/L0.17 10/4/19SM21-22 6200B1tert-Butylbenzene
ND 0.50 10/5/19 5:15 EEHg/L0.11 10/4/19SM21-22 6200B1Carbon Tetrachloride
ND 0.50 10/5/19 5:15 EEHg/L0.15 10/4/19SM21-22 6200B1Chlorobenzene
ND 50 10/5/19 5:15 EEHg/L11 10/4/19SM21-22 6200B1Ethanol
ND 0.50 10/5/19 5:15 EEHg/L0.21 10/4/19SM21-22 6200B1Chlorodibromomethane
ND 0.50 10/5/19 5:15 EEHg/L0.35 10/4/19SM21-22 6200B1Chloroethane
ND 0.50 10/5/19 5:15 EEHg/L0.17 10/4/19SM21-22 6200B1Chloroform
ND 1.0 10/5/19 5:15 EEHg/L0.45 10/4/19SM21-22 6200B1Chloromethane
ND 0.50 10/5/19 5:15 EEHg/L0.12 10/4/19SM21-22 6200B12-Chlorotoluene
ND 0.50 10/5/19 5:15 EEHg/L0.14 10/4/19SM21-22 6200B14-Chlorotoluene
ND 0.50 10/5/19 5:15 EEHg/L0.19 10/4/19SM21-22 6200B11,2-Dibromoethane (EDB)
ND 0.50 10/5/19 5:15 EEHg/L0.16 10/4/19SM21-22 6200B11,2-Dichlorobenzene
ND 0.50 10/5/19 5:15 EEHg/L0.12 10/4/19SM21-22 6200B11,3-Dichlorobenzene
ND 0.50 10/5/19 5:15 EEHg/L0.13 10/4/19SM21-22 6200B11,4-Dichlorobenzene
ND 0.50 10/5/19 5:15 EEHg/L0.26 10/4/19SM21-22 6200B1Dichlorodifluoromethane (Freon 12)
ND 0.50 10/5/19 5:15 EEHg/L0.16 10/4/19SM21-22 6200B11,1-Dichloroethane
ND 1.0 10/5/19 5:15 EEHg/L0.41 10/4/19SM21-22 6200B11,2-Dichloroethane
ND 0.50 10/5/19 5:15 EEHg/L0.32 10/4/19SM21-22 6200B11,1-Dichloroethylene
ND 0.50 10/5/19 5:15 EEHg/L0.13 10/4/19SM21-22 6200B1cis-1,2-Dichloroethylene
ND 0.50 10/5/19 5:15 EEHg/L0.31 10/4/19SM21-22 6200B1trans-1,2-Dichloroethylene
ND 0.50 10/5/19 5:15 EEHg/L0.20 10/4/19SM21-22 6200B11,2-Dichloropropane
ND 0.50 10/5/19 5:15 EEHg/L0.11 10/4/19SM21-22 6200B11,3-Dichloropropane
ND 0.50 10/5/19 5:15 EEHg/L0.20 10/4/19SM21-22 6200B12,2-Dichloropropane
ND 0.50 10/5/19 5:15 EEHg/L0.16 10/4/19SM21-22 6200B11,1-Dichloropropene
ND 0.50 10/5/19 5:15 EEHg/L0.13 10/4/19SM21-22 6200B1cis-1,3-Dichloropropene
ND 0.50 10/5/19 5:15 EEHg/L0.23 10/4/19SM21-22 6200B1trans-1,3-Dichloropropene
ND 0.50 10/5/19 5:15 EEHg/L0.17 10/4/19SM21-22 6200B1Diisopropyl Ether (DIPE)
ND 0.50 10/5/19 5:15 EEHg/L0.13 10/4/19SM21-22 6200B1Ethylbenzene
ND 5.0 10/5/19 5:15 EEHg/L1.5 10/4/19SM21-22 6200B12-Hexanone (MBK)
ND 0.50 10/5/19 5:15 EEHg/L0.17 10/4/19SM21-22 6200B1Isopropylbenzene (Cumene)
ND 0.50 10/5/19 5:15 EEHg/L0.20 10/4/19SM21-22 6200B1p-Isopropyltoluene (p-Cymene)
2.7 0.50 10/5/19 5:15 EEHg/L0.25 10/4/19SM21-22 6200B1Methyl tert-Butyl Ether (MTBE)
ND 5.0 10/5/19 5:15 EEHg/L0.34 10/4/19SM21-22 6200B1Methylene Chloride
ND 5.0 10/5/19 5:15 EEHg/L1.7 10/4/19SM21-22 6200B14-Methyl-2-pentanone (MIBK)
Page 24 of 49
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 10/2/2019
Work Order: 19J0185Sample Description:Project Location: Chapel Hill, NC
Sample ID: 19J0185-09
Field Sample #: MW-8
Sample Matrix: Ground Water
Sampled: 10/1/2019 14:43
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
ND 5.0 10/5/19 5:15 EEHg/L0.31 10/4/19SM21-22 6200B1Naphthalene
ND 0.50 10/5/19 5:15 EEHg/L0.13 10/4/19SM21-22 6200B1n-Propylbenzene
ND 0.50 10/5/19 5:15 EEHg/L0.11 10/4/19SM21-22 6200B1Styrene
ND 0.50 10/5/19 5:15 EEHg/L0.22 10/4/19SM21-22 6200B11,1,2,2-Tetrachloroethane
ND 0.50 10/5/19 5:15 EEHg/L0.18 10/4/19SM21-22 6200B1Tetrachloroethylene
ND 0.50 10/5/19 5:15 EEHg/L0.14 10/4/19SM21-22 6200B1Toluene
ND 2.0 10/5/19 5:15 EEHg/L0.57 10/4/19SM21-22 6200B11,2,3-Trichlorobenzene
ND 0.50 10/5/19 5:15 EEHg/L0.40 10/4/19SM21-22 6200B11,2,4-Trichlorobenzene
ND 0.50 10/5/19 5:15 EEHg/L0.20 10/4/19SM21-22 6200B11,1,1-Trichloroethane
ND 0.50 10/5/19 5:15 EEHg/L0.16 10/4/19SM21-22 6200B11,1,2-Trichloroethane
ND 0.50 10/5/19 5:15 EEHg/L0.24 10/4/19SM21-22 6200B1Trichloroethylene
ND 0.50 10/5/19 5:15 EEHg/L0.33 10/4/19SM21-22 6200B1Trichlorofluoromethane (Freon 11)
ND 0.50 10/5/19 5:15 EEHg/L0.25 10/4/19SM21-22 6200B11,2,3-Trichloropropane
ND 0.50 10/5/19 5:15 EEHg/L0.18 10/4/19SM21-22 6200B11,2,4-Trimethylbenzene
ND 0.50 10/5/19 5:15 EEHg/L0.14 10/4/19SM21-22 6200B11,3,5-Trimethylbenzene
ND 20 10/5/19 5:15 EEHg/L10 10/4/19SM21-22 6200B1Vinyl Acetate
ND 0.50 10/5/19 5:15 EEHg/L0.45 10/4/19SM21-22 6200B1Vinyl Chloride
ND 1.0 10/5/19 5:15 EEHg/L0.30 10/4/19SM21-22 6200B1m+p Xylene
ND 0.50 10/5/19 5:15 EEHg/L0.17 10/4/19SM21-22 6200B1o-Xylene
Surrogates % Recovery Recovery Limits Flag/Qual
1,2-Dichloroethane-d4 99.3 10/5/19 5:1570-130
Toluene-d8 104 10/5/19 5:1570-130
4-Bromofluorobenzene 92.0 10/5/19 5:1570-130
Page 25 of 49
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 10/2/2019
Work Order: 19J0185Sample Description:Project Location: Chapel Hill, NC
Sample ID: 19J0185-10
Field Sample #: MW-9
Sample Matrix: Ground Water
Sampled: 10/1/2019 17:04
[TOC_2]19J0185-10[TOC]
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
ND 50 10/5/19 5:43 EEHg/L3.8 10/4/19SM21-22 6200B1Acetone
ND 0.50 10/5/19 5:43 EEHg/L0.18 10/4/19SM21-22 6200B1Benzene
ND 0.50 10/5/19 5:43 EEHg/L0.15 10/4/19SM21-22 6200B1Bromobenzene
ND 0.50 10/5/19 5:43 EEHg/L0.32 10/4/19SM21-22 6200B1Bromochloromethane
ND 0.50 10/5/19 5:43 EEHg/L0.16 10/4/19SM21-22 6200B1Bromodichloromethane
ND 0.50 10/5/19 5:43 EEHg/L0.46 10/4/19SM21-22 6200B1Bromoform
ND 1.0 10/5/19 5:43 EEHg/L0.78 10/4/19SM21-22 6200B1Bromomethane
ND 5.0 10/5/19 5:43 EEHg/L1.9 10/4/19SM21-22 6200B12-Butanone (MEK)
ND 0.50 10/5/19 5:43 EEHg/L0.21 10/4/19SM21-22 6200B1n-Butylbenzene
ND 0.50 10/5/19 5:43 EEHg/L0.16 10/4/19SM21-22 6200B1sec-Butylbenzene
ND 0.50 10/5/19 5:43 EEHg/L0.17 10/4/19SM21-22 6200B1tert-Butylbenzene
ND 0.50 10/5/19 5:43 EEHg/L0.11 10/4/19SM21-22 6200B1Carbon Tetrachloride
ND 0.50 10/5/19 5:43 EEHg/L0.15 10/4/19SM21-22 6200B1Chlorobenzene
ND 50 10/5/19 5:43 EEHg/L11 10/4/19SM21-22 6200B1Ethanol
ND 0.50 10/5/19 5:43 EEHg/L0.21 10/4/19SM21-22 6200B1Chlorodibromomethane
ND 0.50 10/5/19 5:43 EEHg/L0.35 10/4/19SM21-22 6200B1Chloroethane
ND 0.50 10/5/19 5:43 EEHg/L0.17 10/4/19SM21-22 6200B1Chloroform
ND 1.0 10/5/19 5:43 EEHg/L0.45 10/4/19SM21-22 6200B1Chloromethane
ND 0.50 10/5/19 5:43 EEHg/L0.12 10/4/19SM21-22 6200B12-Chlorotoluene
ND 0.50 10/5/19 5:43 EEHg/L0.14 10/4/19SM21-22 6200B14-Chlorotoluene
ND 0.50 10/5/19 5:43 EEHg/L0.19 10/4/19SM21-22 6200B11,2-Dibromoethane (EDB)
ND 0.50 10/5/19 5:43 EEHg/L0.16 10/4/19SM21-22 6200B11,2-Dichlorobenzene
ND 0.50 10/5/19 5:43 EEHg/L0.12 10/4/19SM21-22 6200B11,3-Dichlorobenzene
ND 0.50 10/5/19 5:43 EEHg/L0.13 10/4/19SM21-22 6200B11,4-Dichlorobenzene
ND 0.50 10/5/19 5:43 EEHg/L0.26 10/4/19SM21-22 6200B1Dichlorodifluoromethane (Freon 12)
ND 0.50 10/5/19 5:43 EEHg/L0.16 10/4/19SM21-22 6200B11,1-Dichloroethane
ND 1.0 10/5/19 5:43 EEHg/L0.41 10/4/19SM21-22 6200B11,2-Dichloroethane
ND 0.50 10/5/19 5:43 EEHg/L0.32 10/4/19SM21-22 6200B11,1-Dichloroethylene
ND 0.50 10/5/19 5:43 EEHg/L0.13 10/4/19SM21-22 6200B1cis-1,2-Dichloroethylene
ND 0.50 10/5/19 5:43 EEHg/L0.31 10/4/19SM21-22 6200B1trans-1,2-Dichloroethylene
ND 0.50 10/5/19 5:43 EEHg/L0.20 10/4/19SM21-22 6200B11,2-Dichloropropane
ND 0.50 10/5/19 5:43 EEHg/L0.11 10/4/19SM21-22 6200B11,3-Dichloropropane
ND 0.50 10/5/19 5:43 EEHg/L0.20 10/4/19SM21-22 6200B12,2-Dichloropropane
ND 0.50 10/5/19 5:43 EEHg/L0.16 10/4/19SM21-22 6200B11,1-Dichloropropene
ND 0.50 10/5/19 5:43 EEHg/L0.13 10/4/19SM21-22 6200B1cis-1,3-Dichloropropene
ND 0.50 10/5/19 5:43 EEHg/L0.23 10/4/19SM21-22 6200B1trans-1,3-Dichloropropene
0.21 0.50 10/5/19 5:43 EEHg/L0.17 10/4/19SM21-22 6200B1JDiisopropyl Ether (DIPE)
ND 0.50 10/5/19 5:43 EEHg/L0.13 10/4/19SM21-22 6200B1Ethylbenzene
ND 5.0 10/5/19 5:43 EEHg/L1.5 10/4/19SM21-22 6200B12-Hexanone (MBK)
ND 0.50 10/5/19 5:43 EEHg/L0.17 10/4/19SM21-22 6200B1Isopropylbenzene (Cumene)
ND 0.50 10/5/19 5:43 EEHg/L0.20 10/4/19SM21-22 6200B1p-Isopropyltoluene (p-Cymene)
11 0.50 10/5/19 5:43 EEHg/L0.25 10/4/19SM21-22 6200B1Methyl tert-Butyl Ether (MTBE)
ND 5.0 10/5/19 5:43 EEHg/L0.34 10/4/19SM21-22 6200B1Methylene Chloride
ND 5.0 10/5/19 5:43 EEHg/L1.7 10/4/19SM21-22 6200B14-Methyl-2-pentanone (MIBK)
Page 26 of 49
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 10/2/2019
Work Order: 19J0185Sample Description:Project Location: Chapel Hill, NC
Sample ID: 19J0185-10
Field Sample #: MW-9
Sample Matrix: Ground Water
Sampled: 10/1/2019 17:04
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
ND 5.0 10/5/19 5:43 EEHg/L0.31 10/4/19SM21-22 6200B1Naphthalene
ND 0.50 10/5/19 5:43 EEHg/L0.13 10/4/19SM21-22 6200B1n-Propylbenzene
ND 0.50 10/5/19 5:43 EEHg/L0.11 10/4/19SM21-22 6200B1Styrene
ND 0.50 10/5/19 5:43 EEHg/L0.22 10/4/19SM21-22 6200B11,1,2,2-Tetrachloroethane
ND 0.50 10/5/19 5:43 EEHg/L0.18 10/4/19SM21-22 6200B1Tetrachloroethylene
ND 0.50 10/5/19 5:43 EEHg/L0.14 10/4/19SM21-22 6200B1Toluene
ND 2.0 10/5/19 5:43 EEHg/L0.57 10/4/19SM21-22 6200B11,2,3-Trichlorobenzene
ND 0.50 10/5/19 5:43 EEHg/L0.40 10/4/19SM21-22 6200B11,2,4-Trichlorobenzene
ND 0.50 10/5/19 5:43 EEHg/L0.20 10/4/19SM21-22 6200B11,1,1-Trichloroethane
ND 0.50 10/5/19 5:43 EEHg/L0.16 10/4/19SM21-22 6200B11,1,2-Trichloroethane
ND 0.50 10/5/19 5:43 EEHg/L0.24 10/4/19SM21-22 6200B1Trichloroethylene
ND 0.50 10/5/19 5:43 EEHg/L0.33 10/4/19SM21-22 6200B1Trichlorofluoromethane (Freon 11)
ND 0.50 10/5/19 5:43 EEHg/L0.25 10/4/19SM21-22 6200B11,2,3-Trichloropropane
ND 0.50 10/5/19 5:43 EEHg/L0.18 10/4/19SM21-22 6200B11,2,4-Trimethylbenzene
ND 0.50 10/5/19 5:43 EEHg/L0.14 10/4/19SM21-22 6200B11,3,5-Trimethylbenzene
ND 20 10/5/19 5:43 EEHg/L10 10/4/19SM21-22 6200B1Vinyl Acetate
ND 0.50 10/5/19 5:43 EEHg/L0.45 10/4/19SM21-22 6200B1Vinyl Chloride
ND 1.0 10/5/19 5:43 EEHg/L0.30 10/4/19SM21-22 6200B1m+p Xylene
ND 0.50 10/5/19 5:43 EEHg/L0.17 10/4/19SM21-22 6200B1o-Xylene
Surrogates % Recovery Recovery Limits Flag/Qual
1,2-Dichloroethane-d4 96.0 10/5/19 5:4370-130
Toluene-d8 106 10/5/19 5:4370-130
4-Bromofluorobenzene 96.8 10/5/19 5:4370-130
Page 27 of 49
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 10/2/2019
Work Order: 19J0185Sample Description:Project Location: Chapel Hill, NC
Sample ID: 19J0185-11
Field Sample #: MW-10
Sample Matrix: Ground Water
Sampled: 10/1/2019 00:00
[TOC_2]19J0185-11[TOC]
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
ND 50 10/5/19 6:12 EEHg/L3.8 10/4/19SM21-22 6200B1Acetone
ND 0.50 10/5/19 6:12 EEHg/L0.18 10/4/19SM21-22 6200B1Benzene
ND 0.50 10/5/19 6:12 EEHg/L0.15 10/4/19SM21-22 6200B1Bromobenzene
ND 0.50 10/5/19 6:12 EEHg/L0.32 10/4/19SM21-22 6200B1Bromochloromethane
ND 0.50 10/5/19 6:12 EEHg/L0.16 10/4/19SM21-22 6200B1Bromodichloromethane
ND 0.50 10/5/19 6:12 EEHg/L0.46 10/4/19SM21-22 6200B1Bromoform
ND 1.0 10/5/19 6:12 EEHg/L0.78 10/4/19SM21-22 6200B1Bromomethane
ND 5.0 10/5/19 6:12 EEHg/L1.9 10/4/19SM21-22 6200B12-Butanone (MEK)
ND 0.50 10/5/19 6:12 EEHg/L0.21 10/4/19SM21-22 6200B1n-Butylbenzene
ND 0.50 10/5/19 6:12 EEHg/L0.16 10/4/19SM21-22 6200B1sec-Butylbenzene
ND 0.50 10/5/19 6:12 EEHg/L0.17 10/4/19SM21-22 6200B1tert-Butylbenzene
ND 0.50 10/5/19 6:12 EEHg/L0.11 10/4/19SM21-22 6200B1Carbon Tetrachloride
ND 0.50 10/5/19 6:12 EEHg/L0.15 10/4/19SM21-22 6200B1Chlorobenzene
ND 50 10/5/19 6:12 EEHg/L11 10/4/19SM21-22 6200B1Ethanol
ND 0.50 10/5/19 6:12 EEHg/L0.21 10/4/19SM21-22 6200B1Chlorodibromomethane
ND 0.50 10/5/19 6:12 EEHg/L0.35 10/4/19SM21-22 6200B1Chloroethane
11 0.50 10/5/19 6:12 EEHg/L0.17 10/4/19SM21-22 6200B1Chloroform
ND 1.0 10/5/19 6:12 EEHg/L0.45 10/4/19SM21-22 6200B1Chloromethane
ND 0.50 10/5/19 6:12 EEHg/L0.12 10/4/19SM21-22 6200B12-Chlorotoluene
ND 0.50 10/5/19 6:12 EEHg/L0.14 10/4/19SM21-22 6200B14-Chlorotoluene
ND 0.50 10/5/19 6:12 EEHg/L0.19 10/4/19SM21-22 6200B11,2-Dibromoethane (EDB)
ND 0.50 10/5/19 6:12 EEHg/L0.16 10/4/19SM21-22 6200B11,2-Dichlorobenzene
ND 0.50 10/5/19 6:12 EEHg/L0.12 10/4/19SM21-22 6200B11,3-Dichlorobenzene
ND 0.50 10/5/19 6:12 EEHg/L0.13 10/4/19SM21-22 6200B11,4-Dichlorobenzene
ND 0.50 10/5/19 6:12 EEHg/L0.26 10/4/19SM21-22 6200B1Dichlorodifluoromethane (Freon 12)
ND 0.50 10/5/19 6:12 EEHg/L0.16 10/4/19SM21-22 6200B11,1-Dichloroethane
ND 1.0 10/5/19 6:12 EEHg/L0.41 10/4/19SM21-22 6200B11,2-Dichloroethane
ND 0.50 10/5/19 6:12 EEHg/L0.32 10/4/19SM21-22 6200B11,1-Dichloroethylene
ND 0.50 10/5/19 6:12 EEHg/L0.13 10/4/19SM21-22 6200B1cis-1,2-Dichloroethylene
ND 0.50 10/5/19 6:12 EEHg/L0.31 10/4/19SM21-22 6200B1trans-1,2-Dichloroethylene
ND 0.50 10/5/19 6:12 EEHg/L0.20 10/4/19SM21-22 6200B11,2-Dichloropropane
ND 0.50 10/5/19 6:12 EEHg/L0.11 10/4/19SM21-22 6200B11,3-Dichloropropane
ND 0.50 10/5/19 6:12 EEHg/L0.20 10/4/19SM21-22 6200B12,2-Dichloropropane
ND 0.50 10/5/19 6:12 EEHg/L0.16 10/4/19SM21-22 6200B11,1-Dichloropropene
ND 0.50 10/5/19 6:12 EEHg/L0.13 10/4/19SM21-22 6200B1cis-1,3-Dichloropropene
ND 0.50 10/5/19 6:12 EEHg/L0.23 10/4/19SM21-22 6200B1trans-1,3-Dichloropropene
ND 0.50 10/5/19 6:12 EEHg/L0.17 10/4/19SM21-22 6200B1Diisopropyl Ether (DIPE)
ND 0.50 10/5/19 6:12 EEHg/L0.13 10/4/19SM21-22 6200B1Ethylbenzene
ND 5.0 10/5/19 6:12 EEHg/L1.5 10/4/19SM21-22 6200B12-Hexanone (MBK)
ND 0.50 10/5/19 6:12 EEHg/L0.17 10/4/19SM21-22 6200B1Isopropylbenzene (Cumene)
ND 0.50 10/5/19 6:12 EEHg/L0.20 10/4/19SM21-22 6200B1p-Isopropyltoluene (p-Cymene)
ND 0.50 10/5/19 6:12 EEHg/L0.25 10/4/19SM21-22 6200B1Methyl tert-Butyl Ether (MTBE)
ND 5.0 10/5/19 6:12 EEHg/L0.34 10/4/19SM21-22 6200B1Methylene Chloride
ND 5.0 10/5/19 6:12 EEHg/L1.7 10/4/19SM21-22 6200B14-Methyl-2-pentanone (MIBK)
Page 28 of 49
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 10/2/2019
Work Order: 19J0185Sample Description:Project Location: Chapel Hill, NC
Sample ID: 19J0185-11
Field Sample #: MW-10
Sample Matrix: Ground Water
Sampled: 10/1/2019 00:00
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
ND 5.0 10/5/19 6:12 EEHg/L0.31 10/4/19SM21-22 6200B1Naphthalene
ND 0.50 10/5/19 6:12 EEHg/L0.13 10/4/19SM21-22 6200B1n-Propylbenzene
ND 0.50 10/5/19 6:12 EEHg/L0.11 10/4/19SM21-22 6200B1Styrene
ND 0.50 10/5/19 6:12 EEHg/L0.22 10/4/19SM21-22 6200B11,1,2,2-Tetrachloroethane
ND 0.50 10/5/19 6:12 EEHg/L0.18 10/4/19SM21-22 6200B1Tetrachloroethylene
ND 0.50 10/5/19 6:12 EEHg/L0.14 10/4/19SM21-22 6200B1Toluene
ND 2.0 10/5/19 6:12 EEHg/L0.57 10/4/19SM21-22 6200B11,2,3-Trichlorobenzene
ND 0.50 10/5/19 6:12 EEHg/L0.40 10/4/19SM21-22 6200B11,2,4-Trichlorobenzene
ND 0.50 10/5/19 6:12 EEHg/L0.20 10/4/19SM21-22 6200B11,1,1-Trichloroethane
ND 0.50 10/5/19 6:12 EEHg/L0.16 10/4/19SM21-22 6200B11,1,2-Trichloroethane
ND 0.50 10/5/19 6:12 EEHg/L0.24 10/4/19SM21-22 6200B1Trichloroethylene
ND 0.50 10/5/19 6:12 EEHg/L0.33 10/4/19SM21-22 6200B1Trichlorofluoromethane (Freon 11)
ND 0.50 10/5/19 6:12 EEHg/L0.25 10/4/19SM21-22 6200B11,2,3-Trichloropropane
ND 0.50 10/5/19 6:12 EEHg/L0.18 10/4/19SM21-22 6200B11,2,4-Trimethylbenzene
ND 0.50 10/5/19 6:12 EEHg/L0.14 10/4/19SM21-22 6200B11,3,5-Trimethylbenzene
ND 20 10/5/19 6:12 EEHg/L10 10/4/19SM21-22 6200B1Vinyl Acetate
ND 0.50 10/5/19 6:12 EEHg/L0.45 10/4/19SM21-22 6200B1Vinyl Chloride
ND 1.0 10/5/19 6:12 EEHg/L0.30 10/4/19SM21-22 6200B1m+p Xylene
ND 0.50 10/5/19 6:12 EEHg/L0.17 10/4/19SM21-22 6200B1o-Xylene
Surrogates % Recovery Recovery Limits Flag/Qual
1,2-Dichloroethane-d4 95.8 10/5/19 6:1270-130
Toluene-d8 97.2 10/5/19 6:1270-130
4-Bromofluorobenzene 106 10/5/19 6:1270-130
Page 29 of 49
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 10/2/2019
Work Order: 19J0185Sample Description:Project Location: Chapel Hill, NC
Sample ID: 19J0185-12
Field Sample #: MW-11
Sample Matrix: Ground Water
Sampled: 10/1/2019 15:20
[TOC_2]19J0185-12[TOC]
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
ND 50 10/5/19 6:41 EEHg/L3.8 10/4/19SM21-22 6200B1Acetone
ND 0.50 10/5/19 6:41 EEHg/L0.18 10/4/19SM21-22 6200B1Benzene
ND 0.50 10/5/19 6:41 EEHg/L0.15 10/4/19SM21-22 6200B1Bromobenzene
ND 0.50 10/5/19 6:41 EEHg/L0.32 10/4/19SM21-22 6200B1Bromochloromethane
ND 0.50 10/5/19 6:41 EEHg/L0.16 10/4/19SM21-22 6200B1Bromodichloromethane
ND 0.50 10/5/19 6:41 EEHg/L0.46 10/4/19SM21-22 6200B1Bromoform
ND 1.0 10/5/19 6:41 EEHg/L0.78 10/4/19SM21-22 6200B1Bromomethane
ND 5.0 10/5/19 6:41 EEHg/L1.9 10/4/19SM21-22 6200B12-Butanone (MEK)
ND 0.50 10/5/19 6:41 EEHg/L0.21 10/4/19SM21-22 6200B1n-Butylbenzene
ND 0.50 10/5/19 6:41 EEHg/L0.16 10/4/19SM21-22 6200B1sec-Butylbenzene
ND 0.50 10/5/19 6:41 EEHg/L0.17 10/4/19SM21-22 6200B1tert-Butylbenzene
ND 0.50 10/5/19 6:41 EEHg/L0.11 10/4/19SM21-22 6200B1Carbon Tetrachloride
ND 0.50 10/5/19 6:41 EEHg/L0.15 10/4/19SM21-22 6200B1Chlorobenzene
ND 50 10/5/19 6:41 EEHg/L11 10/4/19SM21-22 6200B1Ethanol
ND 0.50 10/5/19 6:41 EEHg/L0.21 10/4/19SM21-22 6200B1Chlorodibromomethane
ND 0.50 10/5/19 6:41 EEHg/L0.35 10/4/19SM21-22 6200B1Chloroethane
ND 0.50 10/5/19 6:41 EEHg/L0.17 10/4/19SM21-22 6200B1Chloroform
ND 1.0 10/5/19 6:41 EEHg/L0.45 10/4/19SM21-22 6200B1Chloromethane
ND 0.50 10/5/19 6:41 EEHg/L0.12 10/4/19SM21-22 6200B12-Chlorotoluene
ND 0.50 10/5/19 6:41 EEHg/L0.14 10/4/19SM21-22 6200B14-Chlorotoluene
ND 0.50 10/5/19 6:41 EEHg/L0.19 10/4/19SM21-22 6200B11,2-Dibromoethane (EDB)
ND 0.50 10/5/19 6:41 EEHg/L0.16 10/4/19SM21-22 6200B11,2-Dichlorobenzene
ND 0.50 10/5/19 6:41 EEHg/L0.12 10/4/19SM21-22 6200B11,3-Dichlorobenzene
ND 0.50 10/5/19 6:41 EEHg/L0.13 10/4/19SM21-22 6200B11,4-Dichlorobenzene
ND 0.50 10/5/19 6:41 EEHg/L0.26 10/4/19SM21-22 6200B1Dichlorodifluoromethane (Freon 12)
ND 0.50 10/5/19 6:41 EEHg/L0.16 10/4/19SM21-22 6200B11,1-Dichloroethane
ND 1.0 10/5/19 6:41 EEHg/L0.41 10/4/19SM21-22 6200B11,2-Dichloroethane
ND 0.50 10/5/19 6:41 EEHg/L0.32 10/4/19SM21-22 6200B11,1-Dichloroethylene
ND 0.50 10/5/19 6:41 EEHg/L0.13 10/4/19SM21-22 6200B1cis-1,2-Dichloroethylene
ND 0.50 10/5/19 6:41 EEHg/L0.31 10/4/19SM21-22 6200B1trans-1,2-Dichloroethylene
ND 0.50 10/5/19 6:41 EEHg/L0.20 10/4/19SM21-22 6200B11,2-Dichloropropane
ND 0.50 10/5/19 6:41 EEHg/L0.11 10/4/19SM21-22 6200B11,3-Dichloropropane
ND 0.50 10/5/19 6:41 EEHg/L0.20 10/4/19SM21-22 6200B12,2-Dichloropropane
ND 0.50 10/5/19 6:41 EEHg/L0.16 10/4/19SM21-22 6200B11,1-Dichloropropene
ND 0.50 10/5/19 6:41 EEHg/L0.13 10/4/19SM21-22 6200B1cis-1,3-Dichloropropene
ND 0.50 10/5/19 6:41 EEHg/L0.23 10/4/19SM21-22 6200B1trans-1,3-Dichloropropene
ND 0.50 10/5/19 6:41 EEHg/L0.17 10/4/19SM21-22 6200B1Diisopropyl Ether (DIPE)
ND 0.50 10/5/19 6:41 EEHg/L0.13 10/4/19SM21-22 6200B1Ethylbenzene
ND 5.0 10/5/19 6:41 EEHg/L1.5 10/4/19SM21-22 6200B12-Hexanone (MBK)
ND 0.50 10/5/19 6:41 EEHg/L0.17 10/4/19SM21-22 6200B1Isopropylbenzene (Cumene)
ND 0.50 10/5/19 6:41 EEHg/L0.20 10/4/19SM21-22 6200B1p-Isopropyltoluene (p-Cymene)
2.2 0.50 10/5/19 6:41 EEHg/L0.25 10/4/19SM21-22 6200B1Methyl tert-Butyl Ether (MTBE)
ND 5.0 10/5/19 6:41 EEHg/L0.34 10/4/19SM21-22 6200B1Methylene Chloride
ND 5.0 10/5/19 6:41 EEHg/L1.7 10/4/19SM21-22 6200B14-Methyl-2-pentanone (MIBK)
Page 30 of 49
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 10/2/2019
Work Order: 19J0185Sample Description:Project Location: Chapel Hill, NC
Sample ID: 19J0185-12
Field Sample #: MW-11
Sample Matrix: Ground Water
Sampled: 10/1/2019 15:20
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
ND 5.0 10/5/19 6:41 EEHg/L0.31 10/4/19SM21-22 6200B1Naphthalene
ND 0.50 10/5/19 6:41 EEHg/L0.13 10/4/19SM21-22 6200B1n-Propylbenzene
ND 0.50 10/5/19 6:41 EEHg/L0.11 10/4/19SM21-22 6200B1Styrene
ND 0.50 10/5/19 6:41 EEHg/L0.22 10/4/19SM21-22 6200B11,1,2,2-Tetrachloroethane
ND 0.50 10/5/19 6:41 EEHg/L0.18 10/4/19SM21-22 6200B1Tetrachloroethylene
0.18 0.50 10/5/19 6:41 EEHg/L0.14 10/4/19SM21-22 6200B1JToluene
ND 2.0 10/5/19 6:41 EEHg/L0.57 10/4/19SM21-22 6200B11,2,3-Trichlorobenzene
ND 0.50 10/5/19 6:41 EEHg/L0.40 10/4/19SM21-22 6200B11,2,4-Trichlorobenzene
ND 0.50 10/5/19 6:41 EEHg/L0.20 10/4/19SM21-22 6200B11,1,1-Trichloroethane
ND 0.50 10/5/19 6:41 EEHg/L0.16 10/4/19SM21-22 6200B11,1,2-Trichloroethane
ND 0.50 10/5/19 6:41 EEHg/L0.24 10/4/19SM21-22 6200B1Trichloroethylene
ND 0.50 10/5/19 6:41 EEHg/L0.33 10/4/19SM21-22 6200B1Trichlorofluoromethane (Freon 11)
ND 0.50 10/5/19 6:41 EEHg/L0.25 10/4/19SM21-22 6200B11,2,3-Trichloropropane
ND 0.50 10/5/19 6:41 EEHg/L0.18 10/4/19SM21-22 6200B11,2,4-Trimethylbenzene
ND 0.50 10/5/19 6:41 EEHg/L0.14 10/4/19SM21-22 6200B11,3,5-Trimethylbenzene
ND 20 10/5/19 6:41 EEHg/L10 10/4/19SM21-22 6200B1Vinyl Acetate
ND 0.50 10/5/19 6:41 EEHg/L0.45 10/4/19SM21-22 6200B1Vinyl Chloride
ND 1.0 10/5/19 6:41 EEHg/L0.30 10/4/19SM21-22 6200B1m+p Xylene
ND 0.50 10/5/19 6:41 EEHg/L0.17 10/4/19SM21-22 6200B1o-Xylene
Surrogates % Recovery Recovery Limits Flag/Qual
1,2-Dichloroethane-d4 96.8 10/5/19 6:4170-130
Toluene-d8 97.5 10/5/19 6:4170-130
4-Bromofluorobenzene 93.1 10/5/19 6:4170-130
Page 31 of 49
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 10/2/2019
Work Order: 19J0185Sample Description:Project Location: Chapel Hill, NC
Sample ID: 19J0185-13
Field Sample #: MW-12
Sample Matrix: Ground Water
Sampled: 10/1/2019 13:00
[TOC_2]19J0185-13[TOC]
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Sample Flags: RL-11 Volatile Organic Compounds by GC/MS
ND 5000 10/5/19 10:31 EEHg/L380 10/4/19SM21-22 6200B100Acetone
2300 50 10/5/19 10:31 EEHg/L18 10/4/19SM21-22 6200B100Benzene
ND 50 10/5/19 10:31 EEHg/L15 10/4/19SM21-22 6200B100Bromobenzene
ND 50 10/5/19 10:31 EEHg/L32 10/4/19SM21-22 6200B100Bromochloromethane
ND 50 10/5/19 10:31 EEHg/L16 10/4/19SM21-22 6200B100Bromodichloromethane
ND 50 10/5/19 10:31 EEHg/L46 10/4/19SM21-22 6200B100Bromoform
ND 100 10/5/19 10:31 EEHg/L78 10/4/19SM21-22 6200B100Bromomethane
ND 500 10/5/19 10:31 EEHg/L190 10/4/19SM21-22 6200B1002-Butanone (MEK)
ND 50 10/5/19 10:31 EEHg/L21 10/4/19SM21-22 6200B100n-Butylbenzene
ND 50 10/5/19 10:31 EEHg/L16 10/4/19SM21-22 6200B100sec-Butylbenzene
ND 50 10/5/19 10:31 EEHg/L17 10/4/19SM21-22 6200B100tert-Butylbenzene
ND 50 10/5/19 10:31 EEHg/L11 10/4/19SM21-22 6200B100Carbon Tetrachloride
ND 50 10/5/19 10:31 EEHg/L15 10/4/19SM21-22 6200B100Chlorobenzene
ND 5000 10/5/19 10:31 EEHg/L1100 10/4/19SM21-22 6200B100Ethanol
ND 50 10/5/19 10:31 EEHg/L21 10/4/19SM21-22 6200B100Chlorodibromomethane
ND 50 10/5/19 10:31 EEHg/L35 10/4/19SM21-22 6200B100Chloroethane
ND 50 10/5/19 10:31 EEHg/L17 10/4/19SM21-22 6200B100Chloroform
ND 100 10/5/19 10:31 EEHg/L45 10/4/19SM21-22 6200B100Chloromethane
ND 50 10/5/19 10:31 EEHg/L12 10/4/19SM21-22 6200B1002-Chlorotoluene
ND 50 10/5/19 10:31 EEHg/L14 10/4/19SM21-22 6200B1004-Chlorotoluene
ND 50 10/5/19 10:31 EEHg/L19 10/4/19SM21-22 6200B1001,2-Dibromoethane (EDB)
ND 50 10/5/19 10:31 EEHg/L16 10/4/19SM21-22 6200B1001,2-Dichlorobenzene
ND 50 10/5/19 10:31 EEHg/L12 10/4/19SM21-22 6200B1001,3-Dichlorobenzene
ND 50 10/5/19 10:31 EEHg/L13 10/4/19SM21-22 6200B1001,4-Dichlorobenzene
ND 50 10/5/19 10:31 EEHg/L26 10/4/19SM21-22 6200B100Dichlorodifluoromethane (Freon 12)
ND 50 10/5/19 10:31 EEHg/L16 10/4/19SM21-22 6200B1001,1-Dichloroethane
ND 100 10/5/19 10:31 EEHg/L41 10/4/19SM21-22 6200B1001,2-Dichloroethane
ND 50 10/5/19 10:31 EEHg/L32 10/4/19SM21-22 6200B1001,1-Dichloroethylene
ND 50 10/5/19 10:31 EEHg/L13 10/4/19SM21-22 6200B100cis-1,2-Dichloroethylene
ND 50 10/5/19 10:31 EEHg/L31 10/4/19SM21-22 6200B100trans-1,2-Dichloroethylene
ND 50 10/5/19 10:31 EEHg/L20 10/4/19SM21-22 6200B1001,2-Dichloropropane
ND 50 10/5/19 10:31 EEHg/L11 10/4/19SM21-22 6200B1001,3-Dichloropropane
ND 50 10/5/19 10:31 EEHg/L20 10/4/19SM21-22 6200B1002,2-Dichloropropane
ND 50 10/5/19 10:31 EEHg/L16 10/4/19SM21-22 6200B1001,1-Dichloropropene
ND 50 10/5/19 10:31 EEHg/L13 10/4/19SM21-22 6200B100cis-1,3-Dichloropropene
ND 50 10/5/19 10:31 EEHg/L23 10/4/19SM21-22 6200B100trans-1,3-Dichloropropene
180 50 10/5/19 10:31 EEHg/L17 10/4/19SM21-22 6200B100Diisopropyl Ether (DIPE)
540 50 10/5/19 10:31 EEHg/L13 10/4/19SM21-22 6200B100Ethylbenzene
460 500 10/5/19 10:31 EEHg/L150 10/4/19SM21-22 6200B100J2-Hexanone (MBK)
19 50 10/5/19 10:31 EEHg/L17 10/4/19SM21-22 6200B100JIsopropylbenzene (Cumene)
ND 50 10/5/19 10:31 EEHg/L20 10/4/19SM21-22 6200B100p-Isopropyltoluene (p-Cymene)
1300 50 10/5/19 10:31 EEHg/L25 10/4/19SM21-22 6200B100Methyl tert-Butyl Ether (MTBE)
ND 500 10/5/19 10:31 EEHg/L34 10/4/19SM21-22 6200B100Methylene Chloride
190 500 10/5/19 10:31 EEHg/L170 10/4/19SM21-22 6200B100J4-Methyl-2-pentanone (MIBK)
Page 32 of 49
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 10/2/2019
Work Order: 19J0185Sample Description:Project Location: Chapel Hill, NC
Sample ID: 19J0185-13
Field Sample #: MW-12
Sample Matrix: Ground Water
Sampled: 10/1/2019 13:00
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Sample Flags: RL-11 Volatile Organic Compounds by GC/MS
450 500 10/5/19 10:31 EEHg/L31 10/4/19SM21-22 6200B100JNaphthalene
39 50 10/5/19 10:31 EEHg/L13 10/4/19SM21-22 6200B100Jn-Propylbenzene
ND 50 10/5/19 10:31 EEHg/L11 10/4/19SM21-22 6200B100Styrene
ND 50 10/5/19 10:31 EEHg/L22 10/4/19SM21-22 6200B1001,1,2,2-Tetrachloroethane
ND 50 10/5/19 10:31 EEHg/L18 10/4/19SM21-22 6200B100Tetrachloroethylene
4600 50 10/5/19 10:31 EEHg/L14 10/4/19SM21-22 6200B100Toluene
ND 200 10/5/19 10:31 EEHg/L57 10/4/19SM21-22 6200B1001,2,3-Trichlorobenzene
ND 50 10/5/19 10:31 EEHg/L40 10/4/19SM21-22 6200B1001,2,4-Trichlorobenzene
ND 50 10/5/19 10:31 EEHg/L20 10/4/19SM21-22 6200B1001,1,1-Trichloroethane
ND 50 10/5/19 10:31 EEHg/L16 10/4/19SM21-22 6200B1001,1,2-Trichloroethane
ND 50 10/5/19 10:31 EEHg/L24 10/4/19SM21-22 6200B100Trichloroethylene
ND 50 10/5/19 10:31 EEHg/L33 10/4/19SM21-22 6200B100Trichlorofluoromethane (Freon 11)
ND 50 10/5/19 10:31 EEHg/L25 10/4/19SM21-22 6200B1001,2,3-Trichloropropane
520 50 10/5/19 10:31 EEHg/L18 10/4/19SM21-22 6200B1001,2,4-Trimethylbenzene
190 50 10/5/19 10:31 EEHg/L14 10/4/19SM21-22 6200B1001,3,5-Trimethylbenzene
ND 2000 10/5/19 10:31 EEHg/L1000 10/4/19SM21-22 6200B100Vinyl Acetate
ND 50 10/5/19 10:31 EEHg/L45 10/4/19SM21-22 6200B100Vinyl Chloride
2500 100 10/5/19 10:31 EEHg/L30 10/4/19SM21-22 6200B100m+p Xylene
1100 50 10/5/19 10:31 EEHg/L17 10/4/19SM21-22 6200B100o-Xylene
Surrogates % Recovery Recovery Limits Flag/Qual
1,2-Dichloroethane-d4 92.6 10/5/19 10:3170-130
Toluene-d8 96.2 10/5/19 10:3170-130
4-Bromofluorobenzene 96.6 10/5/19 10:3170-130
Page 33 of 49
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Sample Extraction Data
Prep Method: SW-846 5030B-SM21-22 6200B
Lab Number [Field ID]Batch DateInitial [mL]Final [mL]
B242256 10/04/195 5.0019J0185-02 [MW-1]
B242256 10/04/195 5.0019J0185-03 [MW-2]
B242256 10/04/190.01 5.0019J0185-04 [MW-3]
B242256 10/04/190.5 5.0019J0185-05 [MW-4]
B242256 10/04/195 5.0019J0185-06 [MW-5]
B242256 10/04/195 5.0019J0185-07 [MW-6]
B242256 10/04/195 5.0019J0185-08 [MW-7]
B242256 10/04/195 5.0019J0185-09 [MW-8]
B242256 10/04/195 5.0019J0185-10 [MW-9]
B242256 10/04/195 5.0019J0185-11 [MW-10]
B242256 10/04/195 5.0019J0185-12 [MW-11]
B242256 10/04/190.05 5.0019J0185-13 [MW-12]
Prep Method: SW-846 5030B-SM21-22 6200B
Lab Number [Field ID]Batch DateInitial [mL]Final [mL]
B242263 10/04/195 5.0019J0185-01 [Field Blank]
[TOC_1]Sample Preparation Information[TOC]
Page 34 of 49
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Result Limit
Reporting
Units Level
Spike
Result
Source
%REC
%REC
Limits RPD
RPD
Limit Notes Analyte
Volatile Organic Compounds by GC/MS - Quality Control
QUALITY CONTROL
[TOC_2]Volatile Organic Compounds by GC/MS[TOC]
Batch B242256 - SW-846 5030B
[TOC_3]B242256[TOC]
Blank (B242256-BLK1) Prepared: 10/04/19 Analyzed: 10/05/19
Acetone g/L50ND
Benzene g/L0.50ND
Bromobenzene g/L0.50ND
Bromochloromethane g/L0.50ND
Bromodichloromethane g/L0.50ND
Bromoform g/L0.50ND
Bromomethane g/L1.0ND
2-Butanone (MEK)g/L5.0ND
n-Butylbenzene g/L0.50ND
sec-Butylbenzene g/L0.50ND
tert-Butylbenzene g/L0.50ND
Carbon Tetrachloride g/L0.50ND
Chlorobenzene g/L0.50ND
Ethanol g/L50ND
Chlorodibromomethane g/L0.50ND
Chloroethane g/L0.50ND
Chloroform g/L0.50ND
Chloromethane g/L0.60ND
2-Chlorotoluene g/L0.50ND
4-Chlorotoluene g/L0.50ND
1,2-Dibromoethane (EDB)g/L0.50ND
1,2-Dichlorobenzene g/L0.50ND
1,3-Dichlorobenzene g/L0.50ND
1,4-Dichlorobenzene g/L0.50ND
Dichlorodifluoromethane (Freon 12)g/L0.50ND
1,1-Dichloroethane g/L0.50ND
1,2-Dichloroethane g/L0.50ND
1,1-Dichloroethylene g/L0.50ND
cis-1,2-Dichloroethylene g/L0.50ND
trans-1,2-Dichloroethylene g/L0.50ND
1,2-Dichloropropane g/L0.50ND
1,3-Dichloropropane g/L0.50ND
2,2-Dichloropropane g/L0.50ND
1,1-Dichloropropene g/L0.50ND
cis-1,3-Dichloropropene g/L0.50ND
trans-1,3-Dichloropropene g/L0.50ND
Diisopropyl Ether (DIPE)g/L0.50ND
Ethylbenzene g/L0.50ND
2-Hexanone (MBK)g/L5.0ND
Isopropylbenzene (Cumene)g/L0.50ND
p-Isopropyltoluene (p-Cymene)g/L0.50ND
Methyl tert-Butyl Ether (MTBE)g/L0.50ND
Methylene Chloride g/L5.0ND
4-Methyl-2-pentanone (MIBK)g/L5.0ND
Naphthalene g/L0.50ND
n-Propylbenzene g/L0.50ND
Styrene g/L0.50ND
1,1,2,2-Tetrachloroethane g/L0.50ND
Tetrachloroethylene g/L0.50ND
Toluene g/L0.50ND
1,2,3-Trichlorobenzene g/L1.0ND
1,2,4-Trichlorobenzene g/L0.50ND
[TOC_1]QC Data[TOC]
Page 35 of 49
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Result Limit
Reporting
Units Level
Spike
Result
Source
%REC
%REC
Limits RPD
RPD
Limit Notes Analyte
Volatile Organic Compounds by GC/MS - Quality Control
QUALITY CONTROL
Batch B242256 - SW-846 5030B
Blank (B242256-BLK1) Prepared: 10/04/19 Analyzed: 10/05/19
1,1,1-Trichloroethane g/L0.50ND
1,1,2-Trichloroethane g/L0.50ND
Trichloroethylene g/L0.50ND
Trichlorofluoromethane (Freon 11)g/L0.50ND
1,2,3-Trichloropropane g/L0.50ND
1,2,4-Trimethylbenzene g/L0.50ND
1,3,5-Trimethylbenzene g/L0.50ND
Vinyl Acetate g/L20ND
Vinyl Chloride g/L0.50ND
m+p Xylene g/L1.0ND
o-Xylene g/L0.50ND
g/L 25.0 70-130Surrogate: 1,2-Dichloroethane-d4 96.224.1
g/L 25.0 70-130Surrogate: Toluene-d8 97.624.4
g/L 25.0 70-130Surrogate: 4-Bromofluorobenzene 85.121.3
LCS (B242256-BS1) Prepared: 10/04/19 Analyzed: 10/05/19
Acetone g/L50 100 70-13084.084.0
Benzene g/L0.50 10.0 70-13081.28.12
Bromobenzene g/L0.50 10.0 70-13010710.7
Bromochloromethane g/L0.50 10.0 70-13094.89.48
Bromodichloromethane g/L0.50 10.0 70-13010410.4
Bromoform g/L0.50 10.0 70-13011611.6
Bromomethane g/L1.0 10.0 60-14060.36.03
2-Butanone (MEK)g/L5.0 100 70-13081.381.3
n-Butylbenzene g/L0.50 10.0 70-13010810.8
sec-Butylbenzene g/L0.50 10.0 70-13011111.1
tert-Butylbenzene g/L0.50 10.0 70-13010610.6
Carbon Tetrachloride g/L0.50 10.0 70-13096.09.60
Chlorobenzene g/L0.50 10.0 70-13010710.7
Ethanol g/L50 100 70-130130130
Chlorodibromomethane g/L0.50 10.0 70-13099.59.95
Chloroethane g/L0.50 10.0 60-14078.57.85
Chloroform g/L0.50 10.0 70-13085.28.52
Chloromethane g/L0.60 10.0 60-14072.47.24
2-Chlorotoluene g/L0.50 10.0 70-13010110.1
4-Chlorotoluene g/L0.50 10.0 70-13011311.3
1,2-Dibromoethane (EDB)g/L0.50 10.0 70-13097.99.79
1,2-Dichlorobenzene g/L0.50 10.0 70-13010710.7
1,3-Dichlorobenzene g/L0.50 10.0 70-13011011.0
1,4-Dichlorobenzene g/L0.50 10.0 70-13010710.7
Dichlorodifluoromethane (Freon 12)g/L0.50 10.0 60-14074.47.44
1,1-Dichloroethane g/L0.50 10.0 70-13089.98.99
1,2-Dichloroethane g/L0.50 10.0 70-13010110.1
1,1-Dichloroethylene g/L0.50 10.0 70-13083.38.33
cis-1,2-Dichloroethylene g/L0.50 10.0 70-13089.58.95
trans-1,2-Dichloroethylene g/L0.50 10.0 70-13091.89.18
1,2-Dichloropropane g/L0.50 10.0 70-13095.49.54
1,3-Dichloropropane g/L0.50 10.0 70-13091.89.18
2,2-Dichloropropane g/L0.50 10.0 70-13074.97.49
1,1-Dichloropropene g/L0.50 10.0 70-13084.58.45
cis-1,3-Dichloropropene g/L0.50 10.0 70-13094.69.46
trans-1,3-Dichloropropene g/L0.50 10.0 70-13090.19.01
Page 36 of 49
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Result Limit
Reporting
Units Level
Spike
Result
Source
%REC
%REC
Limits RPD
RPD
Limit Notes Analyte
Volatile Organic Compounds by GC/MS - Quality Control
QUALITY CONTROL
Batch B242256 - SW-846 5030B
LCS (B242256-BS1) Prepared: 10/04/19 Analyzed: 10/05/19
Diisopropyl Ether (DIPE)g/L0.50 10.0 70-13098.89.88
Ethylbenzene g/L0.50 10.0 70-13011011.0
2-Hexanone (MBK)g/L5.0 100 70-130103103
Isopropylbenzene (Cumene)g/L0.50 10.0 70-13011111.1
p-Isopropyltoluene (p-Cymene)g/L0.50 10.0 70-13010310.3
Methyl tert-Butyl Ether (MTBE)g/L0.50 10.0 70-13071.87.18
Methylene Chloride g/L5.0 10.0 70-13089.68.96
4-Methyl-2-pentanone (MIBK)g/L5.0 100 70-130109109
Naphthalene g/L0.50 10.0 70-13010310.3
n-Propylbenzene g/L0.50 10.0 70-13011111.1
Styrene g/L0.50 10.0 70-13095.89.58
1,1,2,2-Tetrachloroethane g/L0.50 10.0 70-13011411.4
Tetrachloroethylene g/L0.50 10.0 70-13010510.5
Toluene g/L0.50 10.0 70-13096.99.69
1,2,3-Trichlorobenzene g/L1.0 10.0 70-13012112.1
1,2,4-Trichlorobenzene g/L0.50 10.0 70-13011711.7
1,1,1-Trichloroethane g/L0.50 10.0 70-13094.09.40
1,1,2-Trichloroethane g/L0.50 10.0 70-13093.99.39
Trichloroethylene g/L0.50 10.0 70-13097.39.73
Trichlorofluoromethane (Freon 11)g/L0.50 10.0 70-13076.27.62
1,2,3-Trichloropropane g/L0.50 10.0 70-13010410.4
1,2,4-Trimethylbenzene g/L0.50 10.0 70-13092.39.23
1,3,5-Trimethylbenzene g/L0.50 10.0 70-13011011.0
Vinyl Acetate g/L20 100 70-13086.286.2
Vinyl Chloride g/L0.50 10.0 L-0260-140286*28.6
m+p Xylene g/L1.0 20.0 70-13010921.8
o-Xylene g/L0.50 10.0 70-13011411.4
g/L 25.0 70-130Surrogate: 1,2-Dichloroethane-d4 95.423.8
g/L 25.0 70-130Surrogate: Toluene-d8 97.424.4
g/L 25.0 70-130Surrogate: 4-Bromofluorobenzene 10125.2
LCS Dup (B242256-BSD1) Prepared: 10/04/19 Analyzed: 10/05/19
Acetone g/L50 100 2570-13085.8 2.0785.8
Benzene g/L0.50 10.0 2570-13081.7 0.6148.17
Bromobenzene g/L0.50 10.0 2570-130105 1.9710.5
Bromochloromethane g/L0.50 10.0 2570-13095.5 0.7369.55
Bromodichloromethane g/L0.50 10.0 2570-130103 0.29010.3
Bromoform g/L0.50 10.0 2570-130116 0.0011.6
Bromomethane g/L1.0 10.0 2560-14063.0 4.386.30
2-Butanone (MEK)g/L5.0 100 2570-13083.1 2.1883.1
n-Butylbenzene g/L0.50 10.0 2570-130108 0.0010.8
sec-Butylbenzene g/L0.50 10.0 2570-130112 0.62911.2
tert-Butylbenzene g/L0.50 10.0 2570-130106 0.47210.6
Carbon Tetrachloride g/L0.50 10.0 2570-13093.9 2.219.39
Chlorobenzene g/L0.50 10.0 2570-130106 1.1210.6
Ethanol g/L50 100 2570-130127 1.78127
Chlorodibromomethane g/L0.50 10.0 2570-13092.8 6.979.28
Chloroethane g/L0.50 10.0 2560-14087.3 10.68.73
Chloroform g/L0.50 10.0 2570-13084.1 1.308.41
Chloromethane g/L0.60 10.0 2560-14075.2 3.797.52
2-Chlorotoluene g/L0.50 10.0 2570-13099.6 1.109.96
4-Chlorotoluene g/L0.50 10.0 2570-130110 2.2511.0
Page 37 of 49
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Result Limit
Reporting
Units Level
Spike
Result
Source
%REC
%REC
Limits RPD
RPD
Limit Notes Analyte
Volatile Organic Compounds by GC/MS - Quality Control
QUALITY CONTROL
Batch B242256 - SW-846 5030B
LCS Dup (B242256-BSD1) Prepared: 10/04/19 Analyzed: 10/05/19
1,2-Dibromoethane (EDB)g/L0.50 10.0 2570-13089.3 9.198.93
1,2-Dichlorobenzene g/L0.50 10.0 2570-130105 1.9810.5
1,3-Dichlorobenzene g/L0.50 10.0 2570-130111 1.3611.1
1,4-Dichlorobenzene g/L0.50 10.0 2570-130105 1.6910.5
Dichlorodifluoromethane (Freon 12)g/L0.50 10.0 2560-14073.2 1.637.32
1,1-Dichloroethane g/L0.50 10.0 2570-13088.3 1.808.83
1,2-Dichloroethane g/L0.50 10.0 2570-13098.6 2.409.86
1,1-Dichloroethylene g/L0.50 10.0 2570-13087.6 5.038.76
cis-1,2-Dichloroethylene g/L0.50 10.0 2570-13091.1 1.779.11
trans-1,2-Dichloroethylene g/L0.50 10.0 2570-13090.0 1.989.00
1,2-Dichloropropane g/L0.50 10.0 2570-13094.9 0.5259.49
1,3-Dichloropropane g/L0.50 10.0 2570-13083.2 9.838.32
2,2-Dichloropropane g/L0.50 10.0 2570-13073.2 2.307.32
1,1-Dichloropropene g/L0.50 10.0 2570-13088.1 4.178.81
cis-1,3-Dichloropropene g/L0.50 10.0 2570-13092.5 2.249.25
trans-1,3-Dichloropropene g/L0.50 10.0 2570-13083.0 8.208.30
Diisopropyl Ether (DIPE)g/L0.50 10.0 2570-13098.4 0.4069.84
Ethylbenzene g/L0.50 10.0 2570-130109 0.82310.9
2-Hexanone (MBK)g/L5.0 100 2570-13092.4 10.892.4
Isopropylbenzene (Cumene)g/L0.50 10.0 2570-130112 0.44811.2
p-Isopropyltoluene (p-Cymene)g/L0.50 10.0 2570-130105 1.5410.5
Methyl tert-Butyl Ether (MTBE)g/L0.50 10.0 2570-13073.0 1.667.30
Methylene Chloride g/L5.0 10.0 2570-13092.8 3.519.28
4-Methyl-2-pentanone (MIBK)g/L5.0 100 2570-130110 0.947110
Naphthalene g/L0.50 10.0 2570-13097.2 5.899.72
n-Propylbenzene g/L0.50 10.0 2570-130109 2.1810.9
Styrene g/L0.50 10.0 2570-13093.6 2.329.36
1,1,2,2-Tetrachloroethane g/L0.50 10.0 2570-130109 4.3010.9
Tetrachloroethylene g/L0.50 10.0 2570-13099.2 5.879.92
Toluene g/L0.50 10.0 2570-13087.3 10.48.73
1,2,3-Trichlorobenzene g/L1.0 10.0 2570-130108 11.110.8
1,2,4-Trichlorobenzene g/L0.50 10.0 2570-130117 0.42811.7
1,1,1-Trichloroethane g/L0.50 10.0 2570-13094.2 0.2139.42
1,1,2-Trichloroethane g/L0.50 10.0 2570-13088.9 5.478.89
Trichloroethylene g/L0.50 10.0 2570-13099.3 2.039.93
Trichlorofluoromethane (Freon 11)g/L0.50 10.0 2570-13077.2 1.307.72
1,2,3-Trichloropropane g/L0.50 10.0 2570-130105 0.95710.5
1,2,4-Trimethylbenzene g/L0.50 10.0 2570-13094.0 1.839.40
1,3,5-Trimethylbenzene g/L0.50 10.0 2570-130108 1.3810.8
Vinyl Acetate g/L20 100 2570-13087.9 2.0187.9
Vinyl Chloride g/L0.50 10.0 25 L-0260-140306 6.70*30.6
m+p Xylene g/L1.0 20.0 2570-130108 1.1121.6
o-Xylene g/L0.50 10.0 2570-130110 3.8411.0
g/L 25.0 70-130Surrogate: 1,2-Dichloroethane-d4 96.024.0
g/L 25.0 70-130Surrogate: Toluene-d8 88.722.2
g/L 25.0 70-130Surrogate: 4-Bromofluorobenzene 98.824.7
Page 38 of 49
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Result Limit
Reporting
Units Level
Spike
Result
Source
%REC
%REC
Limits RPD
RPD
Limit Notes Analyte
Volatile Organic Compounds by GC/MS - Quality Control
QUALITY CONTROL
Batch B242263 - SW-846 5030B
[TOC_3]B242263[TOC]
Blank (B242263-BLK1) Prepared: 10/04/19 Analyzed: 10/05/19
Acetone g/L50ND
Benzene g/L0.50ND
Bromobenzene g/L0.50ND
Bromochloromethane g/L0.50ND
Bromodichloromethane g/L0.50ND
Bromoform g/L0.50ND
Bromomethane g/L1.0ND
2-Butanone (MEK)g/L5.0ND
n-Butylbenzene g/L0.50ND
sec-Butylbenzene g/L0.50ND
tert-Butylbenzene g/L0.50ND
Carbon Tetrachloride g/L0.50ND
Chlorobenzene g/L0.50ND
Ethanol g/L50ND
Chlorodibromomethane g/L0.50ND
Chloroethane g/L0.50ND
Chloroform g/L0.50ND
Chloromethane g/L0.60ND
2-Chlorotoluene g/L0.50ND
4-Chlorotoluene g/L0.50ND
1,2-Dibromoethane (EDB)g/L0.50ND
1,2-Dichlorobenzene g/L0.50ND
1,3-Dichlorobenzene g/L0.50ND
1,4-Dichlorobenzene g/L0.50ND
Dichlorodifluoromethane (Freon 12)g/L0.50ND
1,1-Dichloroethane g/L0.50ND
1,2-Dichloroethane g/L0.50ND
1,1-Dichloroethylene g/L0.50ND
cis-1,2-Dichloroethylene g/L0.50ND
trans-1,2-Dichloroethylene g/L0.50ND
1,2-Dichloropropane g/L0.50ND
1,3-Dichloropropane g/L0.50ND
2,2-Dichloropropane g/L0.50ND
1,1-Dichloropropene g/L0.50ND
cis-1,3-Dichloropropene g/L0.50ND
trans-1,3-Dichloropropene g/L0.50ND
Diisopropyl Ether (DIPE)g/L0.50ND
Ethylbenzene g/L0.50ND
2-Hexanone (MBK)g/L5.0ND
Isopropylbenzene (Cumene)g/L0.50ND
p-Isopropyltoluene (p-Cymene)g/L0.50ND
Methyl tert-Butyl Ether (MTBE)g/L0.50ND
Methylene Chloride g/L5.0ND
4-Methyl-2-pentanone (MIBK)g/L5.0ND
Naphthalene g/L0.50ND
n-Propylbenzene g/L0.50ND
Styrene g/L0.50ND
1,1,2,2-Tetrachloroethane g/L0.50ND
Tetrachloroethylene g/L0.50ND
Toluene g/L0.50ND
1,2,3-Trichlorobenzene g/L1.0ND
1,2,4-Trichlorobenzene g/L0.50ND
Page 39 of 49
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Result Limit
Reporting
Units Level
Spike
Result
Source
%REC
%REC
Limits RPD
RPD
Limit Notes Analyte
Volatile Organic Compounds by GC/MS - Quality Control
QUALITY CONTROL
Batch B242263 - SW-846 5030B
Blank (B242263-BLK1) Prepared: 10/04/19 Analyzed: 10/05/19
1,1,1-Trichloroethane g/L0.50ND
1,1,2-Trichloroethane g/L0.50ND
Trichloroethylene g/L0.50ND
Trichlorofluoromethane (Freon 11)g/L0.50ND
1,2,3-Trichloropropane g/L0.50ND
1,2,4-Trimethylbenzene g/L0.50ND
1,3,5-Trimethylbenzene g/L0.50ND
Vinyl Acetate g/L20ND
Vinyl Chloride g/L0.50ND
m+p Xylene g/L1.0ND
o-Xylene g/L0.50ND
g/L 25.0 70-130Surrogate: 1,2-Dichloroethane-d4 10325.8
g/L 25.0 70-130Surrogate: Toluene-d8 98.924.7
g/L 25.0 70-130Surrogate: 4-Bromofluorobenzene 96.324.1
LCS (B242263-BS1) Prepared: 10/04/19 Analyzed: 10/05/19
Acetone g/L50 200 70-13096.8194
Benzene g/L0.50 20.0 70-13010821.6
Bromobenzene g/L0.50 20.0 70-13010420.9
Bromochloromethane g/L0.50 20.0 70-13011122.3
Bromodichloromethane g/L0.50 20.0 70-13010721.4
Bromoform g/L0.50 20.0 70-13010120.1
Bromomethane g/L1.0 20.0 60-14082.916.6
2-Butanone (MEK)g/L5.0 200 70-13095.6191
n-Butylbenzene g/L0.50 20.0 70-13010320.7
sec-Butylbenzene g/L0.50 20.0 70-13011222.4
tert-Butylbenzene g/L0.50 20.0 70-13011022.0
Carbon Tetrachloride g/L0.50 20.0 70-13010420.7
Chlorobenzene g/L0.50 20.0 70-13011222.4
Ethanol g/L50 200 70-130110220
Chlorodibromomethane g/L0.50 20.0 70-13010120.2
Chloroethane g/L0.50 20.0 60-14010921.8
Chloroform g/L0.50 20.0 70-13010821.6
Chloromethane g/L0.60 20.0 60-14092.318.5
2-Chlorotoluene g/L0.50 20.0 70-13010821.6
4-Chlorotoluene g/L0.50 20.0 70-13010721.3
1,2-Dibromoethane (EDB)g/L0.50 20.0 70-13010921.8
1,2-Dichlorobenzene g/L0.50 20.0 70-13011222.4
1,3-Dichlorobenzene g/L0.50 20.0 70-13011723.3
1,4-Dichlorobenzene g/L0.50 20.0 70-13011122.2
Dichlorodifluoromethane (Freon 12)g/L0.50 20.0 60-14078.715.7
1,1-Dichloroethane g/L0.50 20.0 70-13010921.8
1,2-Dichloroethane g/L0.50 20.0 70-13010420.8
1,1-Dichloroethylene g/L0.50 20.0 70-13011122.3
cis-1,2-Dichloroethylene g/L0.50 20.0 70-13010621.3
trans-1,2-Dichloroethylene g/L0.50 20.0 70-13010621.3
1,2-Dichloropropane g/L0.50 20.0 70-13010921.8
1,3-Dichloropropane g/L0.50 20.0 70-13010521.0
2,2-Dichloropropane g/L0.50 20.0 70-13082.816.6
1,1-Dichloropropene g/L0.50 20.0 70-13010821.7
cis-1,3-Dichloropropene g/L0.50 20.0 70-13010120.3
trans-1,3-Dichloropropene g/L0.50 20.0 70-13097.419.5
Page 40 of 49
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Result Limit
Reporting
Units Level
Spike
Result
Source
%REC
%REC
Limits RPD
RPD
Limit Notes Analyte
Volatile Organic Compounds by GC/MS - Quality Control
QUALITY CONTROL
Batch B242263 - SW-846 5030B
LCS (B242263-BS1) Prepared: 10/04/19 Analyzed: 10/05/19
Diisopropyl Ether (DIPE)g/L0.50 20.0 70-13010420.8
Ethylbenzene g/L0.50 20.0 70-13010821.7
2-Hexanone (MBK)g/L5.0 200 70-13091.2182
Isopropylbenzene (Cumene)g/L0.50 20.0 70-13010921.9
p-Isopropyltoluene (p-Cymene)g/L0.50 20.0 70-13010621.1
Methyl tert-Butyl Ether (MTBE)g/L0.50 20.0 70-13010420.8
Methylene Chloride g/L5.0 20.0 70-13011122.2
4-Methyl-2-pentanone (MIBK)g/L5.0 200 70-13092.4185
Naphthalene g/L0.50 20.0 70-13082.416.5
n-Propylbenzene g/L0.50 20.0 70-13010621.3
Styrene g/L0.50 20.0 70-13010721.3
1,1,2,2-Tetrachloroethane g/L0.50 20.0 70-13011623.2
Tetrachloroethylene g/L0.50 20.0 70-13010821.5
Toluene g/L0.50 20.0 70-13010721.4
1,2,3-Trichlorobenzene g/L1.0 20.0 70-13081.416.3
1,2,4-Trichlorobenzene g/L0.50 20.0 70-13088.417.7
1,1,1-Trichloroethane g/L0.50 20.0 70-13010621.2
1,1,2-Trichloroethane g/L0.50 20.0 70-13011122.2
Trichloroethylene g/L0.50 20.0 70-13011222.3
Trichlorofluoromethane (Freon 11)g/L0.50 20.0 70-13096.519.3
1,2,3-Trichloropropane g/L0.50 20.0 70-13011122.2
1,2,4-Trimethylbenzene g/L0.50 20.0 70-13010821.6
1,3,5-Trimethylbenzene g/L0.50 20.0 70-13010220.3
Vinyl Acetate g/L20 200 70-13081.0162
Vinyl Chloride g/L0.50 20.0 60-14098.919.8
m+p Xylene g/L1.0 40.0 70-13010843.2
o-Xylene g/L0.50 20.0 70-13011122.1
g/L 25.0 70-130Surrogate: 1,2-Dichloroethane-d4 99.324.8
g/L 25.0 70-130Surrogate: Toluene-d8 99.224.8
g/L 25.0 70-130Surrogate: 4-Bromofluorobenzene 98.824.7
LCS Dup (B242263-BSD1) Prepared: 10/04/19 Analyzed: 10/05/19
Acetone g/L50 200 2570-130102 5.21204
Benzene g/L0.50 20.0 2570-130106 1.7321.2
Bromobenzene g/L0.50 20.0 2570-130104 0.57720.8
Bromochloromethane g/L0.50 20.0 2570-130111 0.27022.2
Bromodichloromethane g/L0.50 20.0 2570-130104 2.4620.9
Bromoform g/L0.50 20.0 2570-13099.8 0.84820.0
Bromomethane g/L1.0 20.0 2560-14090.4 8.6618.1
2-Butanone (MEK)g/L5.0 200 2570-130100 4.47200
n-Butylbenzene g/L0.50 20.0 2570-130103 0.048320.7
sec-Butylbenzene g/L0.50 20.0 2570-130110 1.8522.0
tert-Butylbenzene g/L0.50 20.0 2570-130106 3.6121.2
Carbon Tetrachloride g/L0.50 20.0 2570-13098.0 5.6519.6
Chlorobenzene g/L0.50 20.0 2570-130110 2.2121.9
Ethanol g/L50 200 2570-130120 8.99241
Chlorodibromomethane g/L0.50 20.0 2570-130101 0.44520.3
Chloroethane g/L0.50 20.0 2560-140108 0.78421.6
Chloroform g/L0.50 20.0 2570-130104 3.5320.9
Chloromethane g/L0.60 20.0 2560-14090.8 1.6418.2
2-Chlorotoluene g/L0.50 20.0 2570-130104 3.5320.9
4-Chlorotoluene g/L0.50 20.0 2570-130102 4.2620.4
Page 41 of 49
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Result Limit
Reporting
Units Level
Spike
Result
Source
%REC
%REC
Limits RPD
RPD
Limit Notes Analyte
Volatile Organic Compounds by GC/MS - Quality Control
QUALITY CONTROL
Batch B242263 - SW-846 5030B
LCS Dup (B242263-BSD1) Prepared: 10/04/19 Analyzed: 10/05/19
1,2-Dibromoethane (EDB)g/L0.50 20.0 2570-130108 0.87721.6
1,2-Dichlorobenzene g/L0.50 20.0 2570-130109 2.9421.8
1,3-Dichlorobenzene g/L0.50 20.0 2570-130114 2.3922.8
1,4-Dichlorobenzene g/L0.50 20.0 2570-130105 5.2821.0
Dichlorodifluoromethane (Freon 12)g/L0.50 20.0 2560-14073.9 6.2914.8
1,1-Dichloroethane g/L0.50 20.0 2570-130106 3.1221.1
1,2-Dichloroethane g/L0.50 20.0 2570-130104 0.38620.7
1,1-Dichloroethylene g/L0.50 20.0 2570-130107 3.9421.4
cis-1,2-Dichloroethylene g/L0.50 20.0 2570-130103 3.1520.6
trans-1,2-Dichloroethylene g/L0.50 20.0 2570-130103 3.4920.5
1,2-Dichloropropane g/L0.50 20.0 2570-130104 4.2220.9
1,3-Dichloropropane g/L0.50 20.0 2570-130105 0.14221.1
2,2-Dichloropropane g/L0.50 20.0 2570-13077.4 6.8015.5
1,1-Dichloropropene g/L0.50 20.0 2570-130104 4.2920.8
cis-1,3-Dichloropropene g/L0.50 20.0 2570-13099.3 1.9919.9
trans-1,3-Dichloropropene g/L0.50 20.0 2570-13096.0 1.4019.2
Diisopropyl Ether (DIPE)g/L0.50 20.0 2570-130102 2.2820.4
Ethylbenzene g/L0.50 20.0 2570-130107 1.3921.4
2-Hexanone (MBK)g/L5.0 200 2570-13099.3 8.52199
Isopropylbenzene (Cumene)g/L0.50 20.0 2570-130105 4.0121.0
p-Isopropyltoluene (p-Cymene)g/L0.50 20.0 2570-130104 2.0120.7
Methyl tert-Butyl Ether (MTBE)g/L0.50 20.0 2570-130105 0.86420.9
Methylene Chloride g/L5.0 20.0 2570-130110 1.2721.9
4-Methyl-2-pentanone (MIBK)g/L5.0 200 2570-13098.2 6.07196
Naphthalene g/L0.50 20.0 2570-13087.2 5.7217.4
n-Propylbenzene g/L0.50 20.0 2570-130103 3.0120.6
Styrene g/L0.50 20.0 2570-130105 1.3721.0
1,1,2,2-Tetrachloroethane g/L0.50 20.0 2570-130118 1.7123.6
Tetrachloroethylene g/L0.50 20.0 2570-130107 0.69921.4
Toluene g/L0.50 20.0 2570-130105 2.0721.0
1,2,3-Trichlorobenzene g/L1.0 20.0 2570-13080.5 1.1116.1
1,2,4-Trichlorobenzene g/L0.50 20.0 2570-13088.6 0.28217.7
1,1,1-Trichloroethane g/L0.50 20.0 2570-130102 4.1820.4
1,1,2-Trichloroethane g/L0.50 20.0 2570-130110 1.4021.9
Trichloroethylene g/L0.50 20.0 2570-130108 2.8221.7
Trichlorofluoromethane (Freon 11)g/L0.50 20.0 2570-13089.4 7.6917.9
1,2,3-Trichloropropane g/L0.50 20.0 2570-130107 3.6321.4
1,2,4-Trimethylbenzene g/L0.50 20.0 2570-130105 2.5421.0
1,3,5-Trimethylbenzene g/L0.50 20.0 2570-130101 1.0920.1
Vinyl Acetate g/L20 200 2570-13080.5 0.601161
Vinyl Chloride g/L0.50 20.0 2560-14093.4 5.7718.7
m+p Xylene g/L1.0 40.0 2570-130103 4.2841.4
o-Xylene g/L0.50 20.0 2570-130109 1.5521.8
g/L 25.0 70-130Surrogate: 1,2-Dichloroethane-d4 10025.0
g/L 25.0 70-130Surrogate: Toluene-d8 10125.2
g/L 25.0 70-130Surrogate: 4-Bromofluorobenzene 97.724.4
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39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
*QC result is outside of established limits.
Wide recovery limits established for difficult compound.
Wide RPD limits established for difficult compound.
#Data exceeded client recommended or regulatory level
Percent recoveries and relative percent differences (RPDs) are determined by the software using values in the
calculation which have not been rounded.
No results have been blank subtracted unless specified in the case narrative section.
FLAG/QUALIFIER SUMMARY
Detected but below the Reporting Limit (lowest calibration standard); therefore, result is an estimated
concentration (CLP J-Flag).
J
Laboratory fortified blank/laboratory control sample recovery and duplicate recoveries outside of control limits.
Data validation is not affected since all results are "not detected" for associated samples in this batch and bias is
on the high side.
L-02
Elevated reporting limit due to high concentration of target compounds.RL-11
[TOC_1]Flag/Qualifier Summary[TOC]
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39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
CertificationsAnalyte
CERTIFICATIONS
Certified Analyses included in this Report
SM21-22 6200B in Water
NCAcetone
NCBenzene
NCBromobenzene
NCBromochloromethane
NCBromodichloromethane
NCBromoform
NCBromomethane
NC2-Butanone (MEK)
NCn-Butylbenzene
NCsec-Butylbenzene
NCtert-Butylbenzene
NCCarbon Tetrachloride
NCChlorobenzene
NCEthanol
NCChlorodibromomethane
NCChloroethane
NCChloroform
NCChloromethane
NC2-Chlorotoluene
NC4-Chlorotoluene
NC1,2-Dibromoethane (EDB)
NC1,2-Dichlorobenzene
NC1,3-Dichlorobenzene
NC1,4-Dichlorobenzene
NCDichlorodifluoromethane (Freon 12)
NC1,1-Dichloroethane
NC1,2-Dichloroethane
NC1,1-Dichloroethylene
NCcis-1,2-Dichloroethylene
NCtrans-1,2-Dichloroethylene
NC1,2-Dichloropropane
NC1,3-Dichloropropane
NC2,2-Dichloropropane
NC1,1-Dichloropropene
NCcis-1,3-Dichloropropene
NCtrans-1,3-Dichloropropene
NCDiisopropyl Ether (DIPE)
NCEthylbenzene
NC2-Hexanone (MBK)
NCIsopropylbenzene (Cumene)
NCp-Isopropyltoluene (p-Cymene)
NCMethyl tert-Butyl Ether (MTBE)
NCMethylene Chloride
NC4-Methyl-2-pentanone (MIBK)
NCNaphthalene
NCn-Propylbenzene
NCStyrene
[TOC_1]Certifications[TOC]
Page 44 of 49
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39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
CertificationsAnalyte
CERTIFICATIONS
Certified Analyses included in this Report
SM21-22 6200B in Water
NC1,1,2,2-Tetrachloroethane
NCTetrachloroethylene
NCToluene
NC1,2,3-Trichlorobenzene
NC1,2,4-Trichlorobenzene
NC1,1,1-Trichloroethane
NC1,1,2-Trichloroethane
NCTrichloroethylene
NCTrichlorofluoromethane (Freon 11)
NC1,2,3-Trichloropropane
NC1,2,4-Trimethylbenzene
NC1,3,5-Trimethylbenzene
NCVinyl Acetate
NCVinyl Chloride
NCm+p Xylene
NCo-Xylene
The CON-TEST Environmental Laboratory operates under the following certifications and accreditations:
Code Description Number Expires
100033AIHA-LAP, LLC - ISO17025:2017AIHA 03/1/2020
M-MA100Massachusetts DEPMA 06/30/2020
PH-0567Connecticut Department of Publilc HealthCT 09/30/2021
10899 NELAPNew York State Department of HealthNY 04/1/2020
2516 NELAPNew Hampshire Environmental LabNH-S 02/5/2020
LAO00112Rhode Island Department of HealthRI 12/30/2019
652North Carolina Div. of Water QualityNC 12/31/2019
MA007 NELAPNew Jersey DEPNJ 06/30/2020
E871027 NELAPFlorida Department of HealthFL 06/30/2020
LL015036Vermont Department of Health Lead LaboratoryVT 07/30/2020
2011028State of MaineME 06/9/2021
460217Commonwealth of VirginiaVA 12/14/2019
2557 NELAPNew Hampshire Environmental LabNH-P 09/6/2020
VT-255716Vermont Department of Health Drinking WaterVT-DW 06/12/2020
25703North Carolina Department of HealthNC-DW 07/31/2020
68-05812Commonwealth of Pennsylvania DEPPA 06/30/2020
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APPENDIX F

4505 Falls of Neuse Rd Page: 1
Suite 400
Raleigh, NC 27609 Project: Date: 10-03-19
[phone]
[phone] Fax Project No.: Crew:MK
MW NAME Northing Easting Top PVC Elev
MW-3 763045.905 1972875.066 X
MW-4 763043.818 1972945.439 X
MW-8 763183.987 1972768.57 X
MW-9 762927.657 1972914.256 553.57
MW-10 762927.791 1972796.236 558.02
MW-11 763074.066 1972782.322 553.86
MW-12 763044.858 1972953.359 551.76
Monitoring Well Sheet
Petro Mart #4
HORIZONTAL AND VERTICAL CONTROL BASED ON KCI GPS
11455 NC Highway 15/501 North, Chapel Hill, NC
Top Lid Ground Elev
X
554.18
552.04
552.18
554.18
551.98
554.11
558.78
553.12
551.96 X
X
554.09
558.63