WS-9069_44302_CA_MRP_20170726

TABLE OF CONTENTS

A.SITE IDENTIFICATION ............................................................................................................... 1
B.SITE HISTORY, CHARACTERIZATION AND PURPOSE ................................................... 2
C.HISTORIC FREE PRODUCT GAUGING ................................................................................. 2
D.GROUNDWATER ASSESSMENT ACTIVITIES ..................................................................... 3
E.REGIONAL GEOLOGY AND HYDROGEOLOGY ................................................................ 5
F.SITE GEOLOGY AND HYDROGEOLOGY ............................................................................. 5
G.DETERMINATION OF GROUNDWATER FLOW DIRECTION ........................................ 5
H.CONCLUSIONS .............................................................................................................................. 5
I.RECOMMENDATIONS ................................................................................................................ 6

FIGURES
Figure 1 – Topographic Site Map
Figure 2 – Site Map
Figure 3 – Potentiometric Surface Map
Figure 4 – Water-Supply Well Location Map
Figure 5 – Groundwater Analytical Results Map
Figure 6 – Benzene Isoconcentration Map
Figure 7 – Total BTEX Isoconcentration Map
Figure 8 – MTBE Isoconcentration Map

TABLES
Table B-1 – Site History, UST/AST System Information
Table B-2 – Site History, UST Owner/Operator Information
Table B-4 – Summary of Recent Groundwater Analytical Results
Table B-7 – Well Construction Information and Historical Groundwater Elevations

APPENDIX

Well Construction Record and Boring Log
Groundwater Monitoring Well Sampling Data Sheets
Laboratory Analytical Reports and Chain-of-Custody Records
Groundwater Monitoring Report July 26, 2017
Pagetown Exxon Progress Project 1017126.001
Reidsville, Caswell County, North Carolina
- 1 -
GROUNDWATER MONITORING REPORT

A. SITE IDENTIFICATION

Date of Report: July 26, 2017
Facility I.D.: 00-0-000004296
UST Incident Number (if known): 44302
Site Name: Pagetown Exxon
Site Location: 8035 Cherry Grove Road, Reidsville, North Carolina 27320

Nearest City/Town: Reidsville, North Carolina County: Caswell
UST Owner/Operator: Eden Oil Company, Inc.
Address: P.O. Box 1375, Reidsville, North Carolina 27323 Phone: [phone]
Property Owner: Inez Saunders Wrenn
Address: 8175 Cherry Grove Road, Reidsville, North Carolina 27320 Phone: [phone]
Property Occupant: Pagetown Exxon
Address: 8035 Cherry Grove Road, Reidsville, North Carolina 27320 Phone: [phone]
Consultant/Contractor: Progress Environmental, Inc.
Address: P.O. Box 5884, Winston-Salem, North Carolina 27113 Phone: [phone]
Attention: Mr. Jeffrey A. Ballsieper, L.G.

Drilling Contractor: 3D Environmental Investigations, Inc.
Address: 2157 Mocksville Highway, Statesville, North Carolina 28625 Phone: [phone]

Analytical Laboratory: Research and Analytical Laboratories, Inc.
Address: 106 Short Street, Kernersville, North Carolina 27284 Phone: [phone]

Release Information
Date Discovered: March 23, 2014
Latitude: N36.296375º Longitude: W79.476877º
Estimated Quantity of Release: Unknown
Cause of Release: Corrosion
Source of Release (e.g., Piping/UST): Kerosene UST
Sizes and contents of UST system(s) from which the release occurred): One 1,000-gallon kerosene UST (Table B-1).
Risk Classification: High, Land Use Category: Commercial

I, Jeffrey A. Ballsieper, a Licensed Geologist for Progress Environmental, Inc., do certify that the information
contained in this report is correct and accurate to the best of my knowledge.

_____________________________________
Jeffrey A. Ballsieper, L.G.
Director of Environmental Services

Progress Environmental, Inc. is licensed to practice geology in North Carolina. The certification number of the
corporation is C-349.

Groundwater Monitoring Report July 26, 2017
Pagetown Exxon Progress Project 1017126.001
Reidsville, Caswell County, North Carolina
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B. SITE HISTORY, CHARACTERIZATION AND PURPOSE

The site is located at 8035 Cherry Grove Road in Reidsville, Caswell County, North Carolina
(Figures 1 and 2). The site consists of a convenience store which stores petroleum products in
underground storage tanks (USTs) and aboveground storage tanks (ASTs) for retail sale. Formerly
kerosene and diesel fuel were stored in USTs. The kerosene and diesel fuel USTs were removed
following the discovery of a release in 2014. Three active USTs are present at the site and used to
store gasoline. The site is located in a commercial and residential area of rural Caswell County.
The surrounding properties are served by water-supply wells within 1,500 feet of the source area.
Progress previously completed an Initial Abatement Action Report, dated July 24, 2014; a Phase II
Limited Site Assessment (LSA), dated November 26, 2014; a Free Product Recovery and Water-
Supply Sampling Report dated May 8, 2015; and, a Water-Supply Well Sampling Report, dated
July 31, 2015. The NCDEQ issued a Notice of Regulatory Requirements (NORR), dated
December 4, 2014, requiring that a Comprehensive Site Assessment (CSA) be completed for the
site. Following discussions with the NCDEQ, it was determined that prior to completing a CSA,
free product recovery activities were to be performed and the nearby water-supply wells sampled.
A CSA was submitted to the NCDEQ on August 20, 2015. A description of the former UST
systems is listed in Table B-1 below. Figure 2 depicts the site and the location of the monitoring
wells.

Table B-1
Site History, UST/AST System Information

Tank
No.
Installation
Date
Capacity
(gallons)
Construction
Materials
Dimensions
(inches)
Removal
Date Contents Previous
Contents
1 4/30/1989 6,000 Steel 63” x 216” Present Gasoline Gasoline
2 4/30/1989 8,000 Steel 63” x 216” Present Gasoline Gasoline
3 4/30/1989 4,000 Steel 63” x 216” Present Gasoline Gasoline
4 4/30/1989 2,000 Steel (STP-3) 64” x 12’ 6/16/14 Diesel Diesel
5 4/30/1989 1,000 Steel (STP-3) 64” x 6’ 6/16/14 Kerosene Kerosene
6 2014 (AST) 500 Steel 64” x 12’ Present Kerosene Kerosene
7 2014 (AST) 1,500 Diesel Diesel
8 Unknown 2,000 Steel Unknown 1989 Gasoline Gasoline
9 Unknown 2,000 Steel Unknown 1989 Gasoline Gasoline
10 Unknown 1,000 Steel Unknown 1989 Gasoline Gasoline

Table B-2
Site History, UST Owner/Operator Information

Owner’s Name Address Phone Number Dates of Ownership
Eden Oil Company, Inc. P.O. Box 1375
Reidsville, NC 27323 [phone] 1989-Present

C. HISTORIC FREE PRODUCT GAUGING

Approximately 0.69 feet of free product were measured in monitoring well MW-1 during the LSA
sampling event on November 11, 2014.

Groundwater Monitoring Report July 26, 2017
Pagetown Exxon Progress Project 1017126.001
Reidsville, Caswell County, North Carolina
- 3 -
On March 9, 2015, Progress gauged free product in monitoring well MW-1 prior to the MMPE
event. Approximately 2.92 feet of free product were measured in monitoring well MW-1.

On April 13, 2015 Progress returned to the site to sample the surrounding water-supply wells and
gauge groundwater/free product levels in monitoring well MW-1, as appropriate. Approximately
1.71 feet of free product were measured in monitoring well MW-1.

Approximately 5.10 feet of free product were measured in monitoring well MW-1 during a water-
supply well sampling event on July 6, 2015.

Approximately 5.55 feet of free product were measured in monitoring well MW-1 during the CSA
sampling event on August 3, 2015, and 0.80 feet on March 15, 2016.

On September 8, 2016 Progress returned to the site to sample the existing monitoring wells and
gauge water/free product levels in the monitoring wells, as appropriate. Approximately 0.44 feet
of free product was identified in monitoring well MW-1.

On June 20, 2017 Progress returned to the site to sample the existing monitoring wells and gauge
water/free product levels in the monitoring wells, as appropriate. Approximately 2.00 feet of free
product was identified in monitoring well MW-1.

D. SOIL ASSESSMENT ACTIVITIES

Progress did not collect soil samples for vertical or horizontal delineation purposes during this
assessment.

E. WELL INSTALLATION ACTIVITIES

One Type II permanent monitoring well (MW-9, Figure 2) was installed in the approximate
location requested by the NCDEQ using a truck-mounted drill rig and hollow-stem augers on June
2, 2017 by 3D Environmental Investigations, LLC. The monitoring well was installed at the
request of the NCDEQ to determine the horizontal extent of the impacted groundwater beneath the
site. Monitoring well MW-9 was installed to an approximate depth of 30 feet below land surface
with a fifteen-foot screened interval. Well construction information is provided in Table B-7. The
Non-Residential Well Construction Record and boring log are included in the Appendix.

F. GROUNDWATER ASSESSMENT ACTIVITIES

Progress was on site on June 20, 2017 to collect groundwater samples from monitoring wells MW-
2 through MW-9 and DW-1 and DW-2. Water samples were also collected from water-supply
wells WSW-1, WSW-5, WSW-6, WSW-14, and WSW-20. A groundwater sample was not
collected from monitoring well MW-1, as approximately 2.00 feet of free product was measured in
the well at the time of gauging. Prior to sampling, the wells were developed until the development
water ran relatively clear, and the well was purged of an additional three casing volumes of water
prior to sampling. The depth to the groundwater surface in each of the wells was measured prior
to well purging using a decontaminated electric sounder. The wells were surveyed by Progress
using a relative benchmark that was arbitrarily given an elevation of 100 feet (top of casing of
monitoring well MW-3). The elevations of the monitoring wells and the groundwater surface are
Groundwater Monitoring Report July 26, 2017
Pagetown Exxon Progress Project 1017126.001
Reidsville, Caswell County, North Carolina
- 4 -
both relative to that benchmark. The relative groundwater elevations are shown in Table B-7. The
relative groundwater elevations are depicted on Figure 3.

Well construction information is provided in Table B-7.

The groundwater samples were decanted into laboratory-supplied bottles and placed into a cooler
packed with ice. The cooler was delivered under chain-of-custody to Research and Analytical
Laboratories, Inc. (R&A) in Kernersville, North Carolina for testing. R&A analyzed the
groundwater samples for VOCs by Standard Method 6200B. A summary of the groundwater
sample analytical results is included in Table B-4.

• Laboratory analysis of the groundwater samples collected from monitoring wells MW-3,
MW-6, MW-8, MW-9, DW-1, and DW-2 did not detect targeted compounds at
concentrations exceeding their respective NC2LGWQS. Laboratory analysis of the water
samples collected from water-supply wells WSW-1, WSW5, WSW-6, and WSW-20 did
not detect targeted compounds at concentrations exceeding their respective NC2LGWQS
or the applicable US EPA Drinking Water Standards.

• Laboratory analysis of the groundwater sample collected from monitoring well MW-2
detected benzene (38.3 ug/L), 1,2-dichloroethane (1.12 ug/L), naphthalene (105 ug/L),
1,2,4-trimethylbenzene (421 ug/L), and total xylenes (807 ug/L) at concentrations
exceeding their respective North Carolina 2L Groundwater Quality Standards
(NC2LGWQS).

• Laboratory analysis of the groundwater sample collected from monitoring well MW-4
detected naphthalene (22.8 ug/L), at a concentration exceeding its NC2LGWQS.

• Laboratory analysis of the groundwater sample collected from monitoring well MW-5
detected benzene (3,550 ug/L), ethylbenzene (3,260 ug/L) isopropylbenzene (118 ug/L),
IPE (686 ug/L), MTBE (4,690 ug/L), naphthalene (530 ug/L), n-propylbenzene (418 ug/L),
toluene (34,700 ug/L), 1,2,4-trimethylbenzene (2,260 ug/L), 1,3,5-trimethylbenzene (960
ug/L), and total xylenes (18,000 ug/L) at concentrations exceeding their respective
NC2LGWQS.

• Laboratory analysis of the groundwater sample collected from monitoring well MW-7
detected MTBE (63.6 ug/L) at a concentration that exceeds its NC2LGWQS.

• Laboratory analysis of the groundwater sample collected from water-supply well WSW-14
detected benzene (3.05 ug/L) and 1,2-dichloroethane (1.46 ug/L) at concentrations that
exceed their respective NC2LGWQS. Please note, the concentrations detected in the
water sample collected from water-supply well WSW-14 do not exceed the applicable US
EPA Drinking Water Standards.

The laboratory analytical reports for the groundwater samples are provided in the Appendix.

The laboratory test results are summarized on Figure 5. Maps depicting the plumes of benzene,
BTEX, and MTBE concentrations are included on Figures 6 through 8, respectively.

Groundwater Monitoring Report July 26, 2017
Pagetown Exxon Progress Project 1017126.001
Reidsville, Caswell County, North Carolina
- 5 -
G. REGIONAL GEOLOGY AND HYDROGEOLOGY

According to the Geologic Map of North Carolina, the subject site is located in the Carolina Stale
Belt of North Carolina. The rocks beneath the site have been characterized as metamorphosed
granitic rocks. Groundwater generally is stored in the pore space between individual grains of
residual soil and in the fractures within the underlying parent rock. Due to the intense shearing
associated with the thrust faulting in the area and the relatively shallow depths to bedrock, it can be
expected that the fractures play a major role in the flow of groundwater in the subsurface.

Recharge to the water table is primarily by precipitation infiltrating the upper soils and percolating
downward, under the influence of gravity, to the groundwater table. Typically, the water table is not
a level surface, but a subdued reflection of the land surface. However, the depth to the water table is
not constant, and depends on many factors, which include the amount of rainfall, the permeability of
the soil, and the amount of groundwater being pumped in the area.

H. SITE GEOLOGY AND HYDROGEOLOGY

Based on our review of the topographic map and on-site observation, the site is located on an east-
west trending ridge. Groundwater generally flows in directions sub-parallel to the ground surface
slopes and under the influence of gravity toward points of discharge such as creeks, swamps,
drainage swales, or pumped groundwater wells. Based on topographic inference, groundwater
beneath the site most likely flows to the southeast toward an intermittent tributary of Stony Creek
(Figure 1). Based on the excavation and drilling activities at the site, the soil beneath the site consists
predominately of a silty to sandy clay material.

As presented in the Comprehensive Site Assessment, the hydraulic conductivity was calculated as
0.70 ft/day and the groundwater flow velocity was calculated as 0.056 ft/day.

I. DETERMINATION OF GROUNDWATER FLOW DIRECTION

The depth to the groundwater surface in each of the monitoring and recovery wells was measured
prior to the monitoring well purging using a decontaminated electric sounder. The tops of casing
of the wells were surveyed relative to one another. The elevations of the monitoring wells and the
groundwater surface are both relative to a benchmark. The relative groundwater elevations are
shown in Table B-7.
The relative groundwater elevations are depicted on Figure 3. Based on information collected
during the most recent sampling event, the groundwater flow direction appears to be generally to
the southwest beneath the site.

J. CONCLUSIONS

Based on the results of the groundwater sampling event, Progress makes the following
conclusions:

• On June 2, 2017 Progress supervised the installation of monitoring well MW-9 in a
downgradient location from the documented release.

Groundwater Monitoring Report July 26, 2017
Pagetown Exxon Progress Project 1017126.001
Reidsville, Caswell County, North Carolina
- 6 -
• Progress was on site on June 20, 2017 to collect groundwater samples from monitoring
wells MW-2 through MW-9, DW-1, and DW-2 and from water-supply wells WSW-1,
WSW-5, WSW-6, WSW-14, and WSW-20.

• A groundwater sample was not collected from monitoring well MW-1, as approximately
2.00 feet of free product was measured in the well at the time of gauging.

• Laboratory analysis of the groundwater samples collected from monitoring wells MW-3,
MW-6, MW-8, MW-9, DW-1, and DW-2 did not detect targeted compounds above their
respective NC2LGWQS. Laboratory analysis of the groundwater samples collected from
monitoring wells MW-2, MW-4, MW-5, and MW-7 detected targeted compounds above
their respective NC2LGWQS.

• Laboratory analysis of water samples collected from water-supply wells WSW-1, WSW-5,
WSW-6, and WSW-20 did not detect targeted compounds above their respective
NC2LGWQS or US EPA Drinking Water Standards.

• Laboratory analysis of the groundwater sample collected from water-supply well WSW-14
detected benzene and 1,2-dichloroethane at concentrations that exceed their respective
NC2LGWQS. Please note, the concentrations detected in the water sample collected from
water-supply well WSW-14 do not exceed the applicable US EPA Drinking Water
Standards.

K. RECOMMENDATIONS

Based on the remaining concentrations in select groundwater samples exceeding their respective
NC2LGWQS, Progress recommends the following:

• Progress recommends having discussions with the NCDEQ to determine corrective action
goals and acceptable remediation strategies.

Progress will not complete additional activities at the site unless pre-approved by the NCDEQ.

APPENDIX

Figure 1
Topographic Site Map

Pagetown Exxon
8035 Cherry Grove Road
Reidsville, Caswell County, North Carolina

P.O. Box 5884
Winston-Salem, NC 27113
Telephone: [phone]
Fax: [phone]
www.progressenvironmental.com

United States Department of the Interior
USGS 7.5 Minute Series Topographic Map
Contour Interval: 10 feet
Scale: 1”=2000’
Cherry Grove, North Carolina
Date: 1997
Project: Pagetown Exxon

Client: Eden Oil Company
Progress Job #: 1017126.001
Date: July 2017

SITE
Site
Progress

TABLES
504.1Well IDDate Collected (m/dd/yy)Depth to Water (Ft. Below TOC)11/11/2014 FP (0.69') FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP NM NM NM NM NM NM4/13/2015 FP (1.71') FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FPFP FP FP FP FP FP FP FP FP FP FP NM NM NM NM NM NM7/6/2015 FP (5.10') FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP NM NM NM NM NM NM8/3/2015 FP (5.55') FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP NM NM NM NM NM NM3/23/2016 FP (0.80') FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FPFP FP FP FP FP FP FP FP FP FP FP NM NM NM NM NM NM9/9/2016 FP (0.44') FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP NM NM NM NM NM NM6/20/2017 FP (2.00) FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FPFP FP FP FP FP FP FP FP FP FP FP NM NM NM NM NM NM11/12/2014 21.61 BQL NA NA NA BQL BQL NA BQL NA NA NA NA NA BQL NA NA BQL BQL BQL BQLSee DataNA NA BQL BQL111BQL5.31 18.5 78.9NM NM NM8/3/2015 21.1833.3NA NA NA90.6BQL NA BQL NA NA NA NA NA292NA NA1,120 17.8 17.6 39.7 See DataNA NA NA NA NA NA7.36 18.5 74.3NM NM NM3/23/2016 17.654.71BQL2.72BQL13.4BQL2.38BQL9.61 0.55 2.98 1.15 0.94 2.97 35.8 12.8 74.3NA NA NA NA NA NA NA NA NA NA5.91 19.3 72.9NM NM NM9/9/2016 20.4334.5BQL3.99BQL98.5BQL20.3BQL115 7.40 28.5 10.2 9.48 32 385 97.8 810NA NA NA NA BQL NA NA NA NA NA5.91 19.3 72.9NM NM NM6/20/2017 20.0538.3BQL3.84 1.12 64.0BQL22.8BQL105 14.7 35.1BQL12.2 29.6 421 162 807NA NA NA NA NA NA NA NA NA NA4.55 18.3 61.0NM NM2.2411/12/2014 22.54 BQL NA NA NA BQL BQL NA BQL NA NA NA NA NA BQL NA NA BQL BQL BQL BQLSee DataNA NA BQL BQL BQL BQL5.25 17.4 57.5NM NM NM8/3/2015 22.24 BQL NA NA NA BQL BQL NA BQL NA NA NA NA NA BQL NA NA BQL BQL BQL BQL BQL NA NA NA NA NA NA8.12 17.4 53.8NM NM NM3/23/2016 18.75 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL NA NA NA NA NA NA NA NA NA NA5.60 17.6 52.1NM NM NM9/9/2016 21.30 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL NA NA NA NA BQL NA NA NA NA NA5.60 17.6 52.1NM NM NM6/20/2017 21.06 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL NA NA NA NA NA NA NA NA NA NA4.71 17.4 46.0NM NM6.5211/12/2014 23.15 BQL NA NA NA1.94BQL NA BQL NA NA NA NA NA2.15NA NA12.3BQL BQL BQLSee DataNA NA BQL402 109BQL5.31 17.5 59.5NM NM NM8/3/2015 22.65 BQL NA NA NA1.14BQL NA BQL NA NA NA NA NA1.31NA NA13.1BQL BQL BQL BQL NA NA NA NA NA NA5.32 16.9 48.1NM NM NM3/23/2016 19.75 BQL BQL BQL BQL2.49BQL BQL BQL14.5BQL BQL1.17BQL5.62 7.78 15.3 41.9NA NA NA NA NA NA NA NA NA NA5.56 17.4 50.3NM NM NM9/9/2016 21.200.95BQL BQL BQL27.7BQL6.99BQL27.4 1.33 8.17 4.99 3.34 10.9 115 49.3 193NA NA NA NA BQL NA NA NA NA NA5.56 17.4 50.3NM NM NM6/20/2017 21.37 BQL BQL BQL BQL21.0BQL4.84BQL22.8BQL6.91BQL2.78 2.28 101 55.7 135NA NA NA NA NA NA NA NA NA NA4.53 17.9 38.0NM NM3.148/3/2015 21.746,610NA NA NA4,970 1,580NA11,600NA NA NA NA NA54,800NA NA44,900 132 67.6 621 See DataNA NA79,700 68,730 62,049BQL4.93 19.0 101.9NM NM NM3/23/2016 17.511,370BQL BQL BQL2,120 97 153BQL497BQL311BQL BQL14,100 2,280 608 12,300NA NA NA NA NA NA NA NA NA NA5.81 19.1 193NM NM NM9/9/2016 19.955,070BQL BQL66 2,960 1,050 148 7,060 585BQL330BQL BQL30,400 2,500 601 17,700NA NA NA NA31.4NA NA NA NA NA5.81 19.1 193NM NM NM6/20/2017 20.363,550BQL BQL BQL3,260 686 118 4,690 530BQL418BQL BQL34,700 2,260 960 18,000NA NA NA NA NA NA NA NA NA NA4.92 19.4 93NM NM3.808/3/2015 20.53 BQL NA NA NA BQL BQL NA BQL NA NA NA NA NA2.69NA NA6.83BQL BQL BQL BQL NA NA183 260 260BQL4.63 18.3 414NM NM NM3/23/2016 15.17 BQL2.71 60.7BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL NA NA NA NA NA NA NA NA NA NA5.35 18.4 807NM NM NM9/9/2016 19.62 BQL BQL3.94BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL NA NA NA NA BQL NA NA NA NA NA5.35 18.4 807NM NM NM6/20/2017 18.06 BQL BQL1.05BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL NA NA NA NA NA NA NA NA NA NA4.14 18.1 156NM NM3.283/23/2016 16.00 BQL BQL0.84BQL BQL1.43BQL38.9BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL28.5 187BQL BQL BQL7.44 18.1 156.6NM NM NM9/9/2016 19.50 BQL BQL BQL BQL BQL0.95BQL18.3BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL NA NA187BQL BQL BQL7.44 18.1 156.6NM NM NM6/20/2017 18.98 BQl BQL1.52BQL BQL1.45BQL63.6BQL BQL BQL BQL BQL BQL BQL BQL BQL NA NA NA NA NA NA NA NA NA NA5.18 18.0 86.0NM NM3.273/23/2016 17.29 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL8.40BQL BQL BQL BQL9.20 17.8 42.4NM NM NM9/9/2016 20.91 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL NA NA BQL BQL BQL BQL9.20 17.8 42.4NM NM NM6/20/2017 19.48 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL NA NA NA NA NA NA NA NA NA NA4.48 18.3 39.0NM NM5.31MW-9 6/20/2017 20.86 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQLBQL BQL BQL BQL BQL BQL NA NA NA NA NA NA NA NA NA NA4.80 17.3 34.0NM NM6.308/3/2015 NM BQL NA NA NA BQL BQL NA BQL NA NA NA NA NA BQL NA NA2.66BQL BQL BQLSee DataNA NA BQL BQL132BQL9.56 18.1 328NM NM NM3/23/2016 19.18 BQL BQL0.63BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL NA NA NA NA NA BQL NA NA NA NA7.35 17.4 203NM NM NM9/9/2016 22.20 BQL BQL BQL BQL BQL BQL BQL BQL0.69BQL BQL BQL BQL BQL0.82 1.26 1.27NA NA NA NA BQL NA NA NA NA NA NM NM NM NM NM NM6/20/2017 21.45 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL NA NA NA NA NA NA NA NA NA NA9.45 17.7 189NM NM6.203/23/2016 18.067.22BQL BQL BQL1.18 3.38 0.57 15.6 1.72BQL BQL BQL BQL5.94 7.98BQL29.7BQL BQL BQLSee Data 0.122NA155 184BQL BQL5.81 19.1 251NM NM NM9/9/2016 21.29 BQL BQL BQL BQL BQL2.38BQL10.7BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQLSee DataNA NA BQL BQL BQL BQL NM NM NM NM NM NM6/20/2017 20.67 BQL BQL BQL BQL BQL2.27BQL6.70BQL BQL BQL BQL BQL BQL BQL BQL BQL NA NA NA NA NA NA NA NA NA NA6.01 18.0 149NM NM5.60= Detected Concentration Exceeds the North Carolina 2L Groundwater Quality Standards (NC2LGWQS) or the EPA Drinking Water Standard as Applicable= Detected Concentration Exceeds the GCLBQL = Below Quantitation LimitsResults are reported in µg/lµg/L = micrograms per literGCL = gross contamination levelTOC = top of casingNS = No StandardN/A = Not ApplicableEPH and VPH = Extractable and Volatile Petroleum HydrocarbonsFP = Free ProductNA = Not AnalyzedNM = Not MeasuredDW-1MW-4MW-3MW-2MW-8MW-7MW-6MW-5I-PropylbenzeneNaphthaleneN-Butylbenzenep-IsopropyltolueneContaminant of ConcernBenzeneBromodichloromethaneMW-1DW-2EPH & VPHAnalytical MethodTable B-4Summary of Groundwater Analytical Results Groundwater Monitoring ReportPagetown ExxonField Measurements625BNA+10 TICs602 or 6200BChloroformN-Propylbenzene1,2-DichloroethanepHConductivity (mS/cm)IPEC9-C22 AromaticsEthylbenzeneTolueneC19-C36 AliphaticsTotal Xylenes1-MethylnaphthaleneNaphthaleneTICs DetectedSec-Butylbenzene1,2,4-TrimethylbenzeneORPDO (mg/L)CO2Temperature (ºC)MTBE1,3,5-TrimethylbenzeneC9-C18 AliphaticsC5-C8 AliphaticsEDBLead2-Methylnaphthalene
504.1Well IDDate Collected (m/dd/yy)Depth to Water (Ft. Below TOC)I-PropylbenzeneNaphthaleneN-Butylbenzenep-IsopropyltolueneContaminant of ConcernBenzeneBromodichloromethaneEPH & VPHAnalytical MethodField Measurements625BNA+10 TICs602 or 6200BChloroformN-Propylbenzene1,2-DichloroethanepHConductivity (mS/cm)IPEC9-C22 AromaticsEthylbenzeneTolueneC19-C36 AliphaticsTotal Xylenes1-MethylnaphthaleneNaphthaleneTICs DetectedSec-Butylbenzene1,2,4-TrimethylbenzeneORPDO (mg/L)CO2Temperature (ºC)MTBE1,3,5-TrimethylbenzeneC9-C18 AliphaticsC5-C8 AliphaticsEDBLead2-Methylnaphthalene3/23/2016 -- BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL NA NA NA NA NA NA NA NA NA NA NM NM NM NM NM NM9/9/2016 -- BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL NA NA NA NA NA NA NA NA NA NA NM NM NM NM NM NM6/20/2017 -- BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL NA NA NA NA NA NA NA NA NA NA NM NM NM NM NM NMWSW-2 7/6/2015 -- BQL NA NA NA BQL BQL NA BQL NA NA NA NA NA BQL NA NA BQL BQL BQL BQL NA NA NA NA NA NA NA NM NM NM NM NM NMWSW-3 7/6/2015 -- BQL NA NA NA BQL BQL NA BQL NA NA NA NA NA BQL NA NA BQL BQL BQL BQL NA NA NA NA NA NA NA NM NM NM NM NM NM4/13/2015 -- BQL NA NA NA BQL BQL NA BQL NA NA NA NA NA BQL NA NA BQLBQL BQL BQL NA NA NA NA NA NA NA NM NM NM NM NM NM7/6/2015 -- BQL NA NA NA BQL BQL NA BQL NA NA NA NA NA BQL NA NA BQL BQL BQL BQL NA NA NA NA NA NA NA NM NM NM NM NM NM3/23/2016 -- BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL NA NA NA NA NA NA NA NA NA NA NM NM NM NM NM NM9/9/2016 -- BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL NA NA NA NA NA NA NA NA NA NA NM NM NM NM NM NM6/20/2017 -- BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL NA NA NA NA NA NA NA NA NA NA NM NM NM NM NM NM4/13/2015 -- NA NA NA NA BQL BQL NA BQL NA NA NA NA NA NA NA NA NA BQLBQL BQL NA NA NA NA NA NA NA NM NM NM NM NM NM7/6/2015 -- BQL NA NA NA BQL BQL NA BQL NA NA NA NA NA BQL NA NA BQL BQL BQL BQL NA NA NA NA NA NA NA NM NM NM NM NM NM3/23/2016 -- BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL NA NA NA NA NA NA NA NA NA NA NM NM NM NM NM NM9/9/2016 -- BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL NA NA NA NA NA NA NA NA NA NA NM NM NM NM NM NM6/20/2017 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQLBQL BQL BQL NA NA NA NA NA NA NA NA NA NA NM NM NM NM NM NM4/13/2015 -- BQL NA NA NA BQL BQL NA BQL NA NA NA NA NA BQL NA NA BQLBQL BQL BQL NA NA NA NA NA NA NA NM NM NM NM NM NM7/6/2015 -- BQL NA NA NA BQL BQL NA BQL NA NA NA NA NA BQL NA NA BQL BQL BQL BQL NA NA NA NA NA NA NA NM NM NM NM NM NM3/23/2016 -- BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL NA NA NA NA NA NA NA NA NA NA NM NM NM NM NM NM9/9/2016 -- BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL NA NA NA NA NA NA NA NA NA NA NM NM NM NM NM NMWSW-9 7/6/2015 -- BQL NA NA NA BQL BQL NA BQL NA NA NA NA NA BQL NA NA BQL BQL BQL BQL NA NA NA NA NA NA NA NM NM NM NM NM NMWSW-10 7/6/2015 -- BQL NA NA NA BQL BQL NA BQL NA NA NA NA NA BQL NANA BQL BQL BQL BQL NA NA NA NA NA NA NA NM NM NM NM NM NM4/13/2015 -- BQL NA NA NA BQL BQL NA BQL NA NA NA NA NA BQL NA NA BQLBQL BQL BQL NA NA NA NA NA NA NA NM NM NM NM NM NM7/6/2015 -- BQL NA NA NA BQL BQL NA BQL NA NA NA NA NA BQL NA NA BQL BQL BQL BQL NA NA NA NA NA NA NA NM NM NM NM NM NM3/23/2016 -- BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL NA NA NA NA NA NA NA NA NA NA NM NM NM NM NM NM9/9/2016 -- BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL NA NA NA NA NA NA NA NA NA NA NM NM NM NM NM NMWSW-13 7/6/2015 -- BQL NA NA NA BQL BQL NA BQL NA NA NA NA NA BQL NANA BQL BQL BQL BQL NA NA NA NA NA NA NA NM NM NM NM NM NM4/13/2015 --21.7NA NA NA BQL BQL NA BQL NA NA NA NA NA BQL NA NA31.6BQL BQL BQL NA NA NA NA NA NA NA NM NM NM NM NM NM7/6/2015 --143NA NA NA BQL BQL NA BQL NA NA NA NA NA BQL NA NA225BQL BQL17.0NA NA NA NA NA NA NA NM NM NM NM NM NM3/23/2016 -- BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL NA NA NA NA NA NA NA NA NA NA NM NM NM NM NM NM4/12/2016 --7.1BQL BQL3.4 9.5BQL1.3BQL5.6BQL BQL BQL BQL BQL21.6 4.8 17.2NA NA NA NA NA NA NA NA NA NA NM NM NM NM NM NM9/9/2016 --32.6BQL BQL8.93 20.4BQL2.13BQL9.49BQL BQL BQL BQL BQL38.5 6.11 34NA NA NA NA NA NA NA NA NA NA NM NM NM NM NM NM6/20/2017 --3.05BQL BQL1.46BQL BQL BQL BQL1.09BQL BQL0.68BQL BQL6.35 1.34 3.54NA NA NA NA NA NA NA NA NA NA NM NM NM NM NM NM4/13/2015 -- BQL NA NA NA BQL BQL NA BQL NA NA NA NA NA BQL NA NA BQLBQL BQL BQL NA NA NA NA NA NA NA NM NM NM NM NM NM7/6/2015 -- BQL NA NA NA BQL BQL NA BQL NA NA NA NA NA BQL NA NA BQL BQL BQL BQL NA NA NA NA NA NA NA NM NM NM NM NM NM9/9/2016 -- BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL NA NA NA NA NA NA NA NM NM NM NM NM NMWSW-16 7/6/2015 -- BQL NA NA NA BQL BQL NA BQL NA NA NA NA NA BQL NANA BQL BQL BQL BQL NA NA NA NA NA NA NA NM NM NM NM NM NMWSW-17 7/6/2015 -- BQL NA NA NA BQL BQL NA BQL NA NA NA NA NA BQL NANA BQL BQL BQL BQL NA NA NA NA NA NA NA NM NM NM NM NM NM4/13/2015 -- BQL NA NA NA BQL BQL NA BQL NA NA NA NA NA BQL NA NA BQLBQL BQL BQL NA NA NA NA NA NA NA NM NM NM NM NM NM7/6/2015 -- BQL NA NA NA BQL BQL NA BQL NA NA NA NA NA BQL NA NA BQL BQL BQL BQL NA NA NA NA NA NA NA NM NM NM NM NM NM3/23/2016 -- BQL BQL BQL BQL0.86BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL1.45NA NA NA NA NA NA NA NA NA NA NM NM NM NM NM NM9/9/2016 -- BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL1.47NA NA NA NA NA NA NA NA NA NA NM NM NM NM NM NM6/20/2017 -- BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL2.13NA NA NA NA NA NA NA NA NA NA NM NM NM NM NM NM4/13/2015 -- BQL NA NA NA BQL BQL NA BQL NA NA NA NA NA BQL NA NA BQLBQL BQL BQL NA NA NA NA NA NA NA NM NM NM NM NM NM7/6/2015 -- BQL NA NA NA BQL BQL NA BQL NA NA NA NA NA BQL NA NA BQL BQL BQL BQL NA NA NA NA NA NA NA NM NM NM NM NM NM3/23/2016 -- BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL NA NA NA NA NA NA NA NA NA NA NM NM NM NM NM NM9/9/2016 -- BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL NA NA NA NA NA NA NA NA NA NA NM NM NM NM NM NMWSW-23 7/6/2015 -- BQL NA NA NA BQL BQL NA BQL NA NA NA NA NA BQL NANA BQL BQL BQL BQL NA NA NA NA NA NA NA NM NM NM NM NM NMWSW-24 7/6/2015 -- BQL NA NA NA BQL BQL NA BQL NA NA NA NA NA BQL NANA BQL BQL BQL BQL NA NA NA NA NA NA NA NM NM NM NM NM NM1 0.6 70 0.4 600 70 70 20 6 70 70 25 70 600 400 400 500 30 1 6 N/A 0.02 15 400 700 200 10,000 6.5-8.5 NS NS NS NS NS5,000 N/A 70,000 400 84,500 70,000 25,000 20,000 6,000 6,90030,000 11,700 8,500 260,000 28,500 25,000 85,500 12,500 1,000 5,000 N/A 50 15,000 NS NS NS NS NS NS NS NS NS NS5 NS NS 5 700 NS NS NS NS NS NS NS NS 1,000 NS NS 10,000 NS NS NS N/A NS15 NS NS NS NS NS NS NS NS NS NS= Detected Concentration Exceeds the North Carolina 2L Groundwater Quality Standards (NC2LGWQS) or the EPA Drinking Water Standard as Applicable= Detected Concentration Exceeds the GCLBQL = Below Quantitation LimitsResults are reported in µg/lµg/L = micrograms per literGCL = gross contamination levelTOC = top of casingNS = No StandardN/A = Not ApplicableEPH and VPH = Extractable and Volatile Petroleum HydrocarbonsFP = Free ProductNA = Not AnalyzedNM = Not MeasuredWSW-20WSW-6WSW-5WSW-1WSW-14EPA Drinking Water Standard (µg/l)GCL (µg/l)WSW-15WSW-12NC2LGWQS Standard (µg/l)WSW-22WSW-7
6/20/2017MW-1 10/22/2014 2 35 20-35 22.44 99.66 FP (2.00) 77.22 FP (0.44) 78.12 FP (0.80') 80.66 FP (5.55') 73.17 FP (5.10') NRFP (1.71') 78.15 FP (0.69') 76.45MW-2 11/11/2014 2 30 15-30 20.05 99.85MW-3 11/11/2014 2 30 15-30 21.06 100.00MW-4 11/11/2014 2 30 15-30 21.37 99.10MW-5 7/23/2015 2 30 15-30 20.36 99.11MW-6 7/23/2015 2 30 15-30 18.06 97.53MW-7 3/17/2016 2 30 15-30 18.98 101.85MW-8 3/16/2016 2 30 15-30 19.48 102.99MW-9 6/2/2017 2 30 15-30 20.86 100.32DW-1 7/22 & 23/2015 2 45 (I) 55(O) 50-55 21.45 99.94DW-2 3/16 & 17/2016 2 45 (I) 55(O) 50-55 20.67 99.94** - The top-of-casing elevation of each functioning well relative to a benchmark was established with an assumed elevation of 100 feet (MW-3 TOC). Please note: The depth to water measurement presented for MW-1 does not account for the presence of free product.NR = Not ReportedGroundwater Elevation (feet)6/20/201779.8078.94NMNMNM11/11/2014Groundwater Elevation (feet)4/13/2015Groundwater Elevation (feet)Groundwater Elevation (feet)3/23/201679.4278.7077.90NMNMNMDepth to Water (feet TOC) 78.2477.4675.95NMNMNMNMNMNMNMNMNMNMNMNMNM76.4577.37NM77.00NMNMNMNMNM82.2081.2579.3581.60NM82.3685.8585.7078.6777.76Table B-7Well Construction Information and Historical Groundwater ElevationsGroundwater Monitoring ReportPagetown ExxonWell Diameter (inches)Relative Elevation (feet TOC)Depth (feet)Screen Interval (feet)Installation DateMonitoring Well IDGroundwater Elevation (feet)7/6/2015Groundwater Elevation (feet)8/3/2015Groundwater Elevation (feet)9/8/201677.7378.7579.4782.87NM83.5179.4679.1677.9182.3582.0878.4979.27NM NMNMNMNM78.6577.74NMNMNMNM

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