WS-9069_44302_CA_CSA_20160503_CSA-Revised-1

Transmittal Letter
Incident Manager: Linda Estkowski
Incident Name: Pagetown Exxon
Incident Number: 44302
Facility ID: 0-004296
Document: CSA Report
Document Date: 5/3/16

Jeff Ballsieper
Progress Environmental, Inc.
P.O. Box 5884
Winston-Salem, North Carolina 27113
Phone [phone]
Fax [phone]

TABLE OF CONTENTS
A SITE IDENTIFICATION .............................................................................................................. 1
B SITE HISTORY AND SOURCE CHARACTERIZATION..................................................... 1
1. UST CLOSURE REPORT ...................................................................................................... 2
2. LIMITED SITE ASSESSMENT ............................................................................................... 3
3. OTHER SITE ACTIVITIES .................................................................................................... 3
C RECEPTOR INFORMATION ..................................................................................................... 4
WATER-SUPPLY WELLS ................................................................................................................ 4
PUBLIC WATER SUPPLIES ............................................................................................................. 4
SURFACE WATER ........................................................................................................................... 4
WELLHEAD PROTECTION AREAS ................................................................................................. 4
DEEP AQUIFERS IN THE COASTAL PLAIN PHYSIOGRAPHIC REGION ......................................... 4
SUBSURFACE STRUCTURES ........................................................................................................... 4
PROPERTY OWNERS AND OCCUPANTS ......................................................................................... 4
D REGIONAL GEOLOGY AND HYDROGEOLOGY ............................................................... 4
E SITE GEOLOGY AND HYDROGEOLOGY ............................................................................ 5
F SOIL SAMPLING RESULTS ...................................................................................................... 5
G MONITORING WELL INSTALLATION AND GROUNDWATER SAMPLING
RESULTS ................................................................................................................................................ 6
H FREE PRODUCT INVESTIGATION/RECOVERY ................................................................ 8
I HYDROGEOLOGIC INVESTIGATION .................................................................................. 8
ESTIMATING AQUIFER PARAMETERS .......................................................................................... 8
J GROUNDWATER MODELING RESULTS ............................................................................. 9
K DISCUSSION .................................................................................................................................. 9
L CONCLUSIONS AND RECOMMENDATIONS ...................................................................... 9

Comprehensive Site Assessment May 3, 2016
Pagetown Exxon Progress Project 1016066.001
Reidsville, Caswell County, North Carolina
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B Site History and Source Characterization
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

PREVIOUS INVESTIGATIONS
1. UST Closure Report
Progress prepared an Initial Abatement Action Report, dated July 24, 2014. The closure activities included
the removal of one 1,000-gallon kerosene UST and one 2,000-gallon diesel fuel UST. Impacted soil was noted
beneath the USTs and approximately 97.76 tons of impacted soil were removed. Following the excavation
of the contaminated soil, Progress collected soil samples (N-1, E-1, S-1, W-1, and B-1) from the sidewalls
and base of the excavation. The over-excavation activities were limited due to the presence of the building to
Comprehensive Site Assessment May 3, 2016
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Reidsville, Caswell County, North Carolina
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the south of the excavation and the physical limits of the trackhoe. Laboratory analysis of risk-based soil
samples S-1 and B-1 detected targeted compounds above their respective Soil-to-Groundwater Maximum Soil
Contaminant Concentrations (MSCCs). The concentration of C9-C18 Aliphatics detected in soil sample S-1
exceeded its Residential Soil Cleanup Level.

2. Limited Site Assessment
Based on the results of the soil and groundwater sampling completed during the initial abatement activities,
Progress completed a Phase II LSA Report, dated November 26, 2014. Permanent monitoring wells (MW-1
through MW-4) were installed during the LSA activities. Laboratory analysis of the groundwater samples
collected from monitoring wells MW-2 through MW-4 did not detect targeted compounds above their
respective North Carolina 2L Groundwater Quality Standards (NC2LGWQS). Approximately 0.69 feet of
free product was detected in monitoring well MW-1 on November 11, 2014. Twenty-two water-supply
wells within 1,000 feet were identified during the LSA, each of which is used as a drinking water source for
their respective properties.

3. Other Site Activities
Progress completed a Free Product Recovery and Water-Supply Well Sampling Report, dated May 8, 2015.
Progress completed a free product recovery event using mobile multi-phase extraction (MMPE) from
March 9 to March 13, 2015. Free product and groundwater were extracted from monitoring well MW-1.
The event extracted approximately 1,883 gallons of impacted groundwater and 96.060 pounds or 15.36
gallons of product as vapor. On April 13, 2015 Progress returned to the site to sample the existing
monitoring well MW-1 or gauge free product thickness in the monitoring well, as appropriate.
Approximately 1.71 feet of free product was detected in monitoring well MW-1; therefore, a groundwater
sample was not collected. Progress also collected groundwater samples from water-supply wells WSW-5,
WSW-7, WSW-12, WSW-14, WSW-15, WSW-20, and WSW-22 (Figure 5). Water-supply wells WSW-1
and WSW-21 are no longer in use. A groundwater sample from water-supply well WSW-6 was submitted
to the laboratory; however, due to a power outage during the analysis of the sample it could not be analyzed
and the sample could not be re-analyzed based on the low remaining sample volume. Laboratory analysis
of the groundwater sample collected from water-supply wells WSW-5, WSW-7, WSW-12, WSW-15,
WSW-20, and WSW-22 did not detect targeted compounds above the laboratory detection limits.
Laboratory analysis of the groundwater sample collected from WSW-14 detected benzene (21.7 µg/L) and
total xylenes (31.6 µg/L). The concentration of benzene exceeds its NC2LGWQS of 1 µg/L and the EPA
Drinking Water Standard of 5 µg/L.
Progress completed a Water-Supply Well Sampling Report, dated July 31, 2015. On July 6, 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 5.10 feet of free product was detected in
monitoring well MW-1. Progress collected groundwater samples from water-supply wells WSW-2, WSW-
3, WSW-5, WSW-6, WSW-7, WSW-9, WSW-10, WSW-12, WSW-13, WSW-14, WSW-15, WSW-16,
WSW-17, WSW-20, WSW-22, WSW-23, and WSW-24 (Figure 3). Water-supply wells WSW-4, WSW-
8, and WSW-21 are no longer in use. Laboratory analysis of the groundwater samples collected from water-
supply wells WSW-2, WSW-3, WSW-5, WSW-6, WSW-7, WSW-9, WSW-10, WSW-12, WSW-13,
WSW-14, WSW-15, WSW-16, WSW-17, WSW-20, WSW-22, WSW-23, and WSW-24 did not detect
targeted compounds above the laboratory detection limits. Laboratory analysis of the groundwater sample
collected from WSW-14 detected benzene (143 µg/L), total xylenes (225 µg/L), and naphthalene (17.0
µg/L). The concentrations of benzene and naphthalene exceed their respective NC2LGWQS of 1 µg/L and
6 µg/L, respectively. In addition, the concentration of benzene exceeds the EPA Drinking Water Standard
of 5 µg/L.
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Pagetown Exxon Progress Project 1016066.001
Reidsville, Caswell County, North Carolina
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C RECEPTOR INFORMATION
Water-Supply Wells

Twenty water-supply wells were identified within approximately 1,000 feet of the subject site. It is
Progress’ understanding that municipal water is not available in the vicinity of the site; therefore, each
nearby residence or business utilizes a water-supply well. Based on information provided to Progress, some
of the residences share water-supply wells. Because municipal water is not available in the vicinity of the
site, Progress did not mail water-supply well information requests to the residences. Table B-5 and Figure
5 summarize the water-supply well information.

Public Water Supplies

Are public water supplies available within 1,500 feet of the source are of the release? NO

If yes, where is the location of the nearest public water line and the source(s) of the public water supply?

Surface Water

An unnamed pond is located approximately 1,350 feet to the southwest of the source area (See Figure 1).

Wellhead Protection Areas

The source area is not located within an established wellhead protection area.

Deep Aquifers in the Coastal Plain Physiographic Region

The subject site is not located in the Coastal Plain Physiographic Province.

Subsurface Structures

Overhead electrical and phone utility lines service the subject site. Subsurface power and product lines are
also at the site in the vicinity of the active gasoline UST system. Additional subsurface utilities are located
within the rights-of-way for Cherry Grove Road and Pagetown Road.

Property Owners and Occupants

Ms. Inez Saunders Wrenn currently owns the subject property. Adjacent properties are developed with
residential and commercial properties. The names and mailing addresses of the surrounding property
owners are included in Table B-6 and the associated property boundaries are depicted on Figure 10.

D 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.
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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.

E 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. The location of the geologic cross-sections depicting the underlying soil at the site is presented
on Figure 11, and the Cross-Sections A-A’ and B-B’ are presented as Figures 12 and 13, respectively.

Determination of Groundwater Flow Direction
The depth to the groundwater surface in each of the monitoring wells was measured prior to well purging using
a decontaminated electric sounder. The top of casings of each of the monitoring wells were surveyed by
Progress using a relative benchmark (top of casing for monitoring well MW-3) that was arbitrarily given an
elevation of 100 feet. The elevations of the monitoring wells and the groundwater surface are both relative to
that benchmark. The relative groundwater elevations are shown on Table B-7.

Groundwater elevation data were collected during the CSA activities. Relative groundwater elevations are
depicted on Figure 4. Based on information collected during the CSA field activities, the groundwater flow
direction beneath the site appears to be generally to the south-southwest.

As presented in detail in Section I, the hydraulic conductivity was calculated as 0.70 ft/day and the
groundwater flow velocity was calculated as 0.056 ft/day.
F SOIL SAMPLING RESULTS
Progress did not collect soil samples for vertical or horizontal delineation purposes during the Phase II LSA
or CSA due to the depth to groundwater being measured at approximately one foot below the base of the
previous excavation in the vicinity of the former kerosene UST. In addition, the sidewall soil samples from
the initial abatement activities were below the respective Soil-to-Groundwater MSCCs, with the exception of
soil sample S-1, which is located adjacent to the on-site structure. The remaining impacted soil in the vicinity
of the former kerosene UST that exceeds the Soil-to-Groundwater MSCCs appears to be located in the “smear
zone” or in close proximity and/or beneath on-site building and is not accessible based on current site
conditions.

Based on the results of soil samples collected during a Site Check, the NCDEQ required that the vertical and
horizontal extent of the soil contamination identified in the vicinity of the active gasoline dispensers be
delineated. On March 16, 2016, Progress supervised the advancement of nine soil borings (C-1 through C-9,
Figure 3) to an approximate depth of 15 feet bls in the vicinity of the gasoline dispensers. The locations of
the soil borings are depicted on Figure 3.

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SAEDACCO advanced the soil borings using a track-mounted Geoprobe® drill rig, which utilized the
direct push drilling and sampling technique. Soil samples were collected using decontaminated soil probes.
Standard sampling procedures used during this investigation are presented in Appendix A. Soil boring logs
and lithologic descriptions are presented in Appendix A. Subsurface soil samples were collected for
laboratory analysis from each of the soil borings at approximate five foot intervals (5 ft. bls, 10 ft. bls, and
15 ft. bls). The soil samples were delivered to Research and Analytical Laboratories, Inc. (R&A) in
Kernersville, North Carolina to be analyzed for volatile organic compounds (VOCs) by USEPA Method
8260/5035 and volatile petroleum hydrocarbons (VPH) by the Massachusetts Department of Environmental
Protection (MADEP) Method. Laboratory data is presented in Appendix C.
Laboratory analysis of soil samples C1-5, C1-10, C1-15, C2-5, C2-10, C2-15, C3-5, C3-10, C3-15, C4-5,
C4-10, C4-15, C5-5, C5-10, C6-5, C6-10, C6-15, C9-5, and C9-10 did not detect concentrations of targeted
compounds above their respective Soil-to-Groundwater MSCCs. Laboratory analysis of soil sample C5-
15 and C9-15 detected targeted compounds above their respective Soil-to-Groundwater MSCCs.
Laboratory analysis of soil samples C7-5, C7-10, C7-15, C8-5, C8-10, C8-15 detected targeted compounds
above their respective Soil-to-Groundwater MSCCs and above their respective Residential Soil Cleanup
Levels.
In order to excavate the soil in the vicinity of the active dispensers, the dispensers and product lines would
need to be removed. Based on the depth of the impacted soil (greater than 15 feet bls) and the proximity to
the building, the excavation activities may be limited. Progress estimates that approximately 450 tons of
impacted soil are located in the vicinity of the active gasoline dispensers.
G MONITORING WELL INSTALLATION AND GROUNDWATER SAMPLING RESULTS
Two Type II permanent monitoring wells (MW-5 and MW-6, Figure 2) were installed during the CSA
activities using a truck-mounted drill rig and hollow-stem augers on July 23, 2015 by SAEDACCO.
Monitoring wells MW-5 and MW-6 were installed at the request of the NCDEQ to determine whether the
detected petroleum-related compounds in a groundwater sample collected from water-supply well WSW-
14 were the result of a release from the gasoline UST system. Two additional Type II permanent monitoring
wells (MW-7 and MW-8, Figure 2) were installed by SAEDACCO on March 16 and 17, 2016. Monitoring
wells MW-7 and MW-8 were installed off-site; therefore, site access agreements from the property owners
and a Monitoring Well Construction Permit from the NCDEQ were obtained prior to their installation. One
Type III permanent monitoring well (DW-1) was installed using the air-rotary drilling method on July 22
and 23, 2015 in an effort to vertically delineate the extent of the impacted groundwater in the vicinity of
the former kerosene UST. An additional Type III permanent monitoring well (DW-2) was required by the
NCDEQ and installed using the air-rotary drilling method on March 16 and 17, 2016 in an effort to
vertically delineate the extent of the impacted groundwater in the vicinity of the active gasoline dispensers.
Well construction information is provided in Table B-7. The Non-Residential Well Construction Records,
which include boring logs, are included in Appendix A.

Progress returned to the site on August 3, 2015 to collect groundwater samples from monitoring wells MW-
1 through MW-6 and DW-1. Monitoring well MW-1 was not sampled due to the presence of approximately
5.51 feet of free product. 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 EPA Method 602 and for semi-volatile organic compounds (SVOCs)
using EPA Method 625BNA plus ten tentatively identified compounds (TICs). Groundwater samples
collected from monitoring wells MW-5, MW-6, and DW-1 were also analyzed for volatile and extractable
petroleum hydrocarbons (VPH and EPH) by the MADEP Methods. A summary of the groundwater sample
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analytical results is included in Table B-4. The groundwater samples were collected using the methods
described in Appendix B.

Laboratory analysis of the groundwater samples collected from monitoring wells MW-3, MW-4, and DW-
1 did not detect targeted compounds above their NC2LGWQS. Laboratory analysis of the groundwater
samples collected from monitoring wells MW-2, MW-5, and MW-6 detected targeted compounds above
their respective NC2LGWQS. The concentration of benzene detected in monitoring well MW-5 exceeds
its Gross Contamination Level (GCL). The laboratory analytical report for the groundwater samples is
provided in Appendix C.

Subsequent to the installation of monitoring wells MW-7, MW-8, and DW-2 an additional sampling event
was completed on March 23, 2016. Monitoring well MW-1 was not sampled due to the presence of
approximately 0.80 feet of free product. The NCDEQ also required that groundwater samples be collected
from the water-supply wells within 400 feet of the source area (WSW-1, WSW-5, WSW-6, WSW-7, WSW-
12, WSW-14, WSW-15, WSW-20, and WSW-22, Figure 4). A sample could not be collected from WSW-
15 due to the residence being vacant and the power to the well was off. Water supply-well WSW-14 was
inadvertently sampled post-POE treatment; therefore, an additional sample was collected pre-POE
treatment on April 12, 2016. Please note that the power to the well was off and the POE shed was locked.
Progress had to contact the property owner to have the power turned on and had to remove the lock of the
POE system to obtain a sample. 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 R&A in
Kernersville, North Carolina for testing. R&A analyzed the groundwater samples from monitoring wells
MW-7, MW-8, and DW-1 for VOCs by Standard Method 6200B, for semi-volatile organic compounds
(SVOCs) using EPA Method 625BNA plus ten tentatively identified compounds (TICs), VPH and EPH by
the MADEP Methods, for ethylene dibromide using EPA Method 504.1, and lead. The groundwater
samples collected from monitoring wells MW-2 through MW-6 and DW-1 and the water-supply wells were
analyzed using Standard Method 6200B only. A summary of the groundwater sample analytical results is
included in Table B-4. The groundwater samples were collected using the methods described in Appendix
B.

Laboratory analysis of the groundwater samples collected from monitoring wells MW-3, MW-6, MW-8,
and DW-1 did not detect targeted compounds above their NC2LGWQS. Laboratory analysis of the
groundwater samples collected from monitoring wells MW-2, MW-4, MW-5, MW-7, and DW-2 detected
targeted compounds above their respective NC2LGWQS, but below their respective GCLs. Laboratory
analysis of groundwater sample collected from water-supply well WSW-14 detected benzene above its EPA
Drinking Water Standard. The laboratory analytical report for the groundwater samples is provided in
Appendix C.

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 both relative to that benchmark. The relative groundwater elevations are shown in
Table B-7. The relative groundwater elevations are depicted on Figure 4. Based on information collected
during the CSA field activities, the groundwater flow direction appears to be generally to the south-
southwest beneath the site.

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Well construction information is provided in Table B-7. The Non-Residential Well Construction Records,
which include boring logs, are included in Appendix A. The monitoring well construction permits and
signed access agreements are also included in Appendix A.

The laboratory test results are summarized in Table B-4 and on Figure 6. Maps depicting the plume of impacted
groundwater and benzene, BTEX, and MTBE concentrations are included on Figures 7 through 9, respectively.

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

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.

I HYDROGEOLOGIC INVESTIGATION
Progress conducted single-well groundwater recovery tests (slug tests) in monitoring wells MW-2 and MW-
4 to develop hydraulic conductivity estimates for the surficial aquifer. Each recovery test involved quickly
removing water from the well by bailing and measuring the rate of groundwater recovery using a water level
sounder. The recovery test data measures the productive capacity of each well and allows estimation of the
hydraulic conductivity and transmissivity of the surrounding aquifer.
Progress conducted the recovery tests on August 3, 2015. The recovery tests were terminated when the water-
level reached approximately 90 percent of the initial static water level measured prior to bailing or when
sufficient time had elapsed.
Estimating Aquifer Parameters
The results of the recovery tests were used to calculate an average hydraulic conductivity for the surficial
aquifer of approximately 0.70 ft/day. The Hvorslev Slug Test Method was utilized to develop hydraulic
conductivity estimates. The recovery test data and calculations are presented in Appendix D.
The average linear groundwater flow velocity was calculated based on the measured water table gradient
(0.024 ft/ft, gradient presented from potentiometric map in the CSA), an average hydraulic conductivity of
0.70 ft/day, and an estimated value of 0.30 for effective porosity. The average linear groundwater flow
velocity (v) was calculated according to the following equation:
v = (K dh/dl)/ne , where
K = Hydraulic Conductivity
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dh/dl = Hydraulic gradient
ne = effective porosity

Based upon this calculation, the average linear velocity of groundwater is expected to be approximately 0.056
ft/day or 20.44 feet/year. It is important to note that the assumed value for effective porosity is an estimate
based on predominant soil types encountered during construction of monitoring wells at the site. It should also
be noted that the calculated velocity is an approximate average for the surficial aquifer in the vicinity of the
former UST system.

Based on interpretation of the topographic maps and on-site observations, surface runoff at the site would be
expected to flow overland following topography to the north towards a stormwater feature located within the
Cherry Grove Road right-of-way. Based on the surface topography inferred from topographic maps, properties
generally to the east and northeast would be considered upgradient of the site. Based on the groundwater flow
direction calculations, groundwater beneath the site appears to flow generally to the south-southwest.

J GROUNDWATER MODELING RESULTS
Groundwater modeling was not completed since a surface water feature is not located within 500 feet of
the site.
K DISCUSSION
1. NCDEQ has classified the site as “high risk” based on the presence of numerous water-supply
wells used for drinking water within 1,000 feet of the site. Municipal water is not available in
the vicinity of the site.
2. Based on review of the laboratory data from the previous assessment activities, soil impacted
above the Soil-to-Groundwater MSCCs has been removed to the extent practical in the vicinity
of the former kerosene UST. Soil impacted above the Soil-to-Groundwater and Residential
Soil Cleanup levels remains in the vicinity of the active gasoline dispensers.
3. Laboratory analysis of the groundwater samples collected on August 3, 2015 from monitoring
wells MW-3, MW-4, and DW-1 did not detect targeted compounds above their respective
NC2LGWQS. Laboratory analysis of the groundwater samples collected from monitoring
wells MW-2, MW-5, and MW-6 detected targeted compounds above their respective
NC2LGWQS. The concentration of benzene detected in the groundwater sample collected from
monitoring well MW-5 exceeds its GCL.
4. Laboratory analysis of the groundwater samples collected on March 23, 2016 from monitoring
wells MW-3, MW-6, MW-8, and DW-1 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, MW-7, and DW-2 detected targeted compounds
above their respective NC2LGWQS, but below the applicable GCLs. Laboratory analysis of
groundwater sample collected from water-supply well WSW-14 detected benzene above its
EPA Drinking Water Standard.
5. The NCDEQ placed a POE system at the residence associated with water-supply well WSW-
14, based on the previous sampling results. The residence is currently vacant, and it is Progress’
understanding that the POE system is scheduled to be removed by the NCDEQ.
6. Free product has been detected and remains in monitoring well MW-1.
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7. One free product recovery event via MMPE has been completed at the site.
L CONCLUSIONS AND RECOMMENDATIONS
Based on the findings of this CSA, Progress makes the following conclusions and recommendations:

 Groundwater flow beneath the site appears to be flowing south-southwest;

 Soil impacted above the Soil-to-Groundwater MSCCs appears to be located in the “smear zone” or
in close proximity and/or beneath on-site building and is not accessible based on current site
conditions in the vicinity of the former kerosene UST;

 Soil impacted above the Soil-to-Groundwater MSCCs and Residential Soil Cleanup levels was
identified in the vicinity of the active gasoline dispensers. In order to excavate the soil in the vicinity
of the active dispensers, the dispensers and product lines would need to be removed. Based on the
depth of the impacted soil (greater than 15 feet bls) and the proximity to the building, the excavation
activities may be limited. Progress estimates that approximately 450 tons of impacted soil are
located in the vicinity of the active gasoline dispensers.
 Groundwater contamination in excess of the NC2LGWQS persists in on-site monitoring wells
MW-2, MW-4, MW-5, and MW-6. MTBE was detected in off-site monitoring well MW-7;
 Free product has been measured in monitoring well MW-1. A free product thickness of 0.80 feet
was measured in March 2016, at the time of groundwater sampling for the preparation of the CSA.
The free product thickness appears to be decreasing since the installation of monitoring well MW-
1 and the free product recovery event;
 Based on the calculated groundwater flow direction and the concentrations detected in groundwater
samples collected in monitoring well MW-7 and water-supply well WSW-4 it appears that an off-
site, undocumented release of petroleum may have occurred to the north-northeast of the site.
Furthermore, 1,2-dichloroethene was detected in WSW-14, which has not been detected in the
groundwater samples collected from the site;

 The release related to the kerosene UST appears to have been adequately defined;

 Because public water is not available in the vicinity of the site, free product recovery and
groundwater remediation will be required in an effort to decrease the concentrations of petroleum-
related compounds in the groundwater to below their respective NC2LGWQS;

 Prior to a real estate transaction occurring, a Notice of Residual Petroleum (NORP) must be filed
with the Caswell County Register of Deeds. Written permission would be required from the current
property owner prior to Progress filing a NORP on the subject site. Progress recommends that the
current property owner be notified of the findings of this assessment and that a copy of this report
be submitted to the NCDEQ; and,

 Prepare and submit a Corrective Action Plan to address the continued free product and dissolved
phase petroleum groundwater contamination.

M FIGURES

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 #: 1016066.001
Date: May 2016

SITE
Site
REV
0
DRAWING TITLE
DRAWING NUMBER
FIGURE 2
LEGEND
Approximate Monitoring
Well Location
Product Dispenser
Site Map
Pagetown Exxon
8035 Cherry Grove Road
Reidsville, North Carolina
DR.: JAB MAY 16
CK.:
APP'D.:
SCALE: SHOWN
PROGRESS NO.: 1016066.001
Approximate SubsurfaceUtility Location
Approximate UST LocationDIESEL
Approximate
Water-Supply Well Location
Approximate
AST Location
www.progressenvironmental.com
P.O. Box 5884
Winston-Salem, North Carolina 27113
[phone]
Progress
Environmental, Inc.
N
EW
MW-1
MW-4
MW-3
MW-2
MW-4
MW-5
MW-6
Approximate R-O-W
DW-1
G AS
G ASGAS
K-1/Dies
DIESELK-1
K-1/Dies
DW-2
MW-7
MW-8
REV
0
DRAWING TITLE
DRAWING NUMBER
FIGURE 3
LEGEND
Approximate Monitoring
Well Location
Product Dispenser
Soil Sample Location Map
Pagetown Exxon
8035 Cherry Grove Road
Reidsville, North Carolina
DR.: JAB MAY16
CK.:
APP'D.:
SCALE: SHOWN
PROGRESS NO.: 1016066.001
Approximate Subsurface
Utility Location
Approximate
UST LocationDIESEL
Approximate
Water-Supply Well Location
Approximate
AST Location
Approximate
Soil Sample Location www.progressenvironmental.com
P.O. Box 5884
Winston-Salem, North Carolina 27113
[phone]
Progress
Environmental, Inc.
N
EW
MW-1
MW-4
MW-3
MW-2
MW-4
MW-5
MW-6
Approximate R-O-W
DW-1
GA S
G ASGAS
K-1/Dies
DIESELK-1
K-1/Dies
C7
C8
C9
MW-7
MW-8
DW-2C1
C2
C3 C4
C5
C6
REV
0
DRAWING TITLE
DRAWING NUMBER
FIGURE 4
LEGEND
Potentiometric Surface Map
Pagetown Exxon
8035 Cherry Grove Road
Reidsville, North Carolina
DR.: JAB MAY 16
CK.:
APP'D.:
SCALE: SHOWN
PROGRESS NO.: 1016066.001
Approximate Subsurface
Utility Location
Dispenser Canopy
Please note: MW-1 was not used in the calculation due to the presence of free product. The Type III
wells were also not used in the calculation.
Groundwater Contour and Elevation
Calculated Groundwater Flow Direction
Contour Interval = 1.00 feet
Inferred Groundwater Contour Elevation
Approximate R-O-W
Approximate Monitoring Well Location
and Groundwater Elevation
www.progressenvironmental.com
P.O. Box 5884
Winston-Salem, North Carolina 27113
[phone]
Progress
Environmental, Inc.
N
EW
MW-1
MW-4
MW-3
MW-2
MW-5
MW-6
83.00
(79.35)
(82.36)
(81.60)
(82.20)
(81.25)
MW-4
(79.35)85.00MW-7
MW-8
(85.85)
(85.70)83.0081.00
ProgressENVIRONMENTAL, INC.JSL1016066.001MAY 2016JABAS SHOW NMAY 2016Figure 4.SKFP.O. Box 5884W INSTON-SALEM, NORTH CAROLINA 27113PHONE [phone] FAX [phone]FIG URE 5W ATER-SU PPLY W ELL LO C ATIO N M AP8035 CHERRRY G RO VE RO ADREIDSVILLE, N O RTH CARO LINAPROJECTAPPROXIMATE OBSERVED WATER-SUPPLY WELL LOCATION
PLEASE NOTE: BASED ON MUNICIPAL WATER NOT BEING PRESENT IN THE VICNITY OF THE SITE,
EACH RESIDENCE OR BUSINESS IS CONSIDERED TO UTILIZE A WATER-SUPPLY WELL FOR ITS SOURCE OF DRINKING WATER.
THE OWNER INFORMATION IS PROVIDED IN TABLE B-5 AS OBTAINED FROM THE CASWELL COUNTY GIS.
18
19
1
2
3
22
5
6
7
9
10
11
1 2 13
14 15
16
17
20
23
24
18
19
REV
0
DRAWING TITLE
DRAWING NUMBER
FIGURE 6
LEGEND
Groundwater Analytical Results Map
Pagetown Exxon
8035 Cherry Grove Road
Reidsville, North Carolina
DR.: JAB MAY 16
CK.:
APP'D.:
SCALE: SHOWN
PROGRESS NO.: 1016066.001
Approximate Subsurface
Utility Location
Dispenser Canopy
Product Dispenser
Approximate R-O-W
Approximate Monitoring Well Location
www.progressenvironmental.com
P.O. Box 5884
Winston-Salem, North Carolina 27113
[phone]
Progress
Environmental, Inc.
N
EW
MW-1
MW-4
MW-3
MW-2
MW-5
MW-6
MW-2
Benzene 4.71 ppb
Chloroform 2.72 ppb
Ethylbenzene 13.4 ppb
I-Propylbenzene 2.38 ppbNapthalene 9.61 ppb
N-Butylbenzene 0.55 ppbN-Propylbenzene 2.98 ppb
P-Isopropyltoluene 1.15 ppb
Sec-Butylbenzene 0.94 ppb
Toluene 2.97 ppb
1,2,4-Trimethylbenzene 35.8 ppb
1,3,5-Trimetylbenzene 12.8 ppbTotal Xylenes 74.3 ppb
Benzene 1,370 ppb
Ethylbenzene 2,120 ppb
I-Propylbenzene 153 ppb
Naphthalene 497 ppb
N-Propylbenzene 311 ppb
Toluene 14,100 ppb
1,2,4-Trimethylbenzene 2,280 ppb
1,3,5-Trimethylbenzene 608 ppb
Total Xylenes 12,300 ppb
IPE 97 ppbEthylbenzene 2.49 ppb
Napthalene 14.5 ppb
P-Isopropyltoluene 1.17 ppb
Toluene 5.62 ppb
1,2,4-Trimethylbenzene 7.78 ppb
1,3,5-Trimethylbenzene 15.3 ppb
Total Xylenes 41.9 ppb
Bromodichloromethane 2.71 ppb
Chloroform 60.7 ppb
Below Quantitation Limits
Free Product
DW-1
Chloroform 2.66 ppb
MW-7
MW-8
DW-2
Chloroform 0.84 ppb
MTBE 38.9 ppb
IPE 1.43 ppbLead 28.5 ppb
C5-C8 Aliphatics 187 ppb
Lead 8.40 ppb
Benzene 7.22 ppb
Ethylbenzene 1.18 ppb
I-Propylbenzene 0.57 ppb
Naphthalene 1.72 ppb
N-Propylbenzene 311 ppb
Toluene 5.94 ppb
1,2,4-Trimethylbenzene 7.98 ppb
Total Xylenes 29.7 ppb
MTBE 15.6 ppb
IPE 3.38 ppb
EDB 0.122 ppb
C5-C8 Aliphatics 155 ppb
C9-C18 Aliphatics 184 ppb
REV
0
DRAWING TITLE
DRAWING NUMBER
FIGURE 7
LEGEND
Benzene Isopleth Map
Pagetown Exxon
8035 Cherry Grove Road
Reidsville, North Carolina
DR.: JAB MAY 16
CK.:
APP'D.:
SCALE: SHOWN
PROGRESS NO.: 1016066.001
Approximate Subsurface
Utility Location
Dispenser Canopy
Product Dispenser
Benzene Isopleth and Concentration (ppb)
Inferred Isopleth
Approximate R-O-W
Approximate Monitoring Well Location
and Benzene Concentration
Please note: MW-1 was not used in the isopleth due to the presence of free product. The
Type III monitoring wells were also not utilized in the isopleth.www.progressenvironmental.com
P.O. Box 5884
Winston-Salem, North Carolina 27113
[phone]
Progress
Environmental, Inc.
N
EW
MW-1
MW-4
MW-3
MW-2
MW-5
MW-6
1,000
(BQL)
(BQL)
(1,370)
(4.71)
(BQL)
MW-2
(4.71)
1,000(FP)
100
BQL
DW-1
(BQL)DW-2
(7.22)
MW-7
(BQL)
MW-8
(BQL)
REV
0
DRAWING TITLE
DRAWING NUMBER
FIGURE 8
LEGEND
BTEX Isopleth Map
Pagetown Exxon
8035 Cherry Grove Road
Reidsville, North Carolina
DR.: JAB MAY 16
CK.:
APP'D.:
SCALE: SHOWN
PROGRESS NO.: 1016066.001
Approximate Subsurface
Utility Location
Dispenser Canopy
Product Dispenser
BTEX Isopleth and Concentration (ppb)
Inferred Isopleth
Approximate R-O-W
Approximate Monitoring Well Location
and BTEX Concentration
Please note: MW-1 was not used in the isopleth due to the presence of free product. The
Type III monitoring wells were also not utilized in the isopleth.www.progressenvironmental.com
P.O. Box 5884
Winston-Salem, North Carolina 27113
[phone]
Progress
Environmental, Inc.
N
EW
MW-1
MW-4
MW-3
MW-2
MW-5
MW-6
20,000
(50.01)
(BQL)
(29,890)
(95.38)
(BQL)
MW-5
(29,890)
20,000
(FP)
10,000
BQL
DW-1
(BQL)DW-2(44.04)
REV
0
DRAWING TITLE
DRAWING NUMBER
FIGURE 9
LEGEND
MTBE Isopleth Map
Pagetown Exxon
8035 Cherry Grove Road
Reidsville, North Carolina
DR.: JAB MAY 16
CK.:
APP'D.:
SCALE: SHOWN
PROGRESS NO.: 1016066.001
Approximate Subsurface
Utility Location
Dispenser Canopy
Product Dispenser
MTBE Isopleth and Concentration (ppb)
Inferred Isopleth
Approximate R-O-W
Approximate Monitoring Well Location
and MTBE Concentration
Please note: MW-1 was not used in the isopleth due to the presence of free product. The
Type III monitoring wells were also not utilized in the isopleth.www.progressenvironmental.com
P.O. Box 5884
Winston-Salem, North Carolina 27113
[phone]
Progress
Environmental, Inc.
N
EW
MW-1
MW-4
MW-3
MW-2
MW-5
MW-6
30
(BQL)
(BQL)
(BQL)
(BQL)
(BQL)
MW-7
(38.9)
30
(FP)
BQL
DW-1(BQL)
MW-7
MW-8
(38.9)
(BQL)
DW-2(15.6)
Progress
ENVIRONMENTAL, INC.JAB
1016066.001
MAY 2016
JTR
NTS
MAY 2016
Figure 10.SKF
P.O. Box 5884
WINSTON-SALEM, NORTH CAROLINA 27113PHONE [phone] FAX [phone]
FIGURE 10
ADJACENT PROPERTY OWNERS
PAGETOWN EXXON
8035 CHERRY GROVE ROAD
REIDSVILLE, NORTH CAROLINA %db("MAG-DATE")PROJECT
1
ADJACENT PROPERTY INFORMATION
*SEE TABLE B-6
SITE
2
LEGEND
2
3
CHERRY GROVE ROAD
PAGETOWN ROADSITE
REV
0
DRAWING TITLE
DRAWING NUMBER
FIGURE 11
LEGEND
Approximate Monitoring
Well Location
Product Dispenser
Cross Section Location Map
Pagetown Exxon
8035 Cherry Grove Road
Reidsville, North Carolina
DR.: JAB APR 16
CK.:
APP'D.:
SCALE: SHOWN
PROGRESS NO.: 1016066.001
Approximate Subsurface
Utility Location
Approximate
UST LocationDIESEL
Approximate
Water-Supply Well Location
Approximate
AST Location
Approximate
Soil Sample Location www.progressenvironmental.com
P.O. Box 5884
Winston-Salem, North Carolina 27113
[phone]
Progress
Environmental, Inc.
N
EW
MW-1
MW-4
MW-3
MW-2
MW-4
MW-5
MW-6
Approximate R-O-W
DW-1
GA S
G ASGAS
K-1/Dies
DIESELK-1
K-1/Dies
C7
C8
C9
MW-7
MW-8
DW-2C1
C2
C3 C4
C5
C6
A
A'
B
B'
Cross Section A-A'
Pagetown Exxon
8035 Cherry Grove Road
Reidsville, North Carolina
HORIZONTAL SCALE: As shown in feet
VERTICAL SCALE: As shown in feet
Progress
ENVIRONMENTAL, INC.JAB MAY 16
JTR
SHOWN
MAY 16
Figure 12.SKF
-40
-20
0
-60
P.O. Box 5884
WINSTON-SALEM, NORTH CAROLINA 27113PHONE [phone] FAX [phone]
A'A
Estimated area of soil impacted above the Soil-to-Groundwater MSCCs
0 25 50 75 100MW-1Fill C1Sandy Clay
1016066.001
PROJECTand groundwater impacted above the NC2LGWQS.
Silty Clay DW-1MW-5DW-2C7C8C9C4
Progress

N TABLES
Date Collected
(mm/dd/yy)Sample Depth (ft BLS)
C1-5 03/16/16 5 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
C1-10 03/16/16 10 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
C1-15 03/16/16 15 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
C2-5 03/16/16 5 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
C2-10 03/16/16 10 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 0.007 BQL 0.018 BQL BQL BQL
C2-15 03/16/16 15 BQL BQL BQL BQL BQL BQL BQL 0.020 BQL BQL 0.005 0.007 BQL 0.017 BQL BQL BQL
C3-5 03/16/16 5 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
C3-10 03/16/16 10 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
C3-15 03/16/16 15 BQL BQL BQL BQL BQL BQL BQL 0.057 BQL BQL BQL BQL BQL BQL BQL BQL BQL
C4-5 03/16/16 5 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
C4-10 03/16/16 10 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
C4-15 03/16/16 15 BQL BQL BQL BQL BQL BQL BQL 0.016 BQL BQL 0.005 BQL BQL BQL BQL BQL BQL
C5-5 03/16/16 5 BQL BQL BQL BQL BQL BQL 0.086 0.078 BQL BQL 0.005 BQL BQL BQL BQL BQL BQL
C5-10 03/16/16 10 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
C5-15 03/16/16 15 0.012 0.007 BQL BQL 0.005 BQL 0.056 1.96 0.034 BQL 0.048 0.030 0.010 0.051 27.1 20 BQL
C6-5 03/16/16 5 BQL BQL BQL BQL BQL BQL BQL 0.011 BQL BQL BQL BQL BQL BQL BQL BQL BQL
C6-10 03/16/16 10 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
C6-15 03/16/16 15 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
C7-5 03/16/16 5 BQL BQL 4.94 1.37 2.73 1.24 BQL BQL 8.58 5.66 BQL 56.4 14.4 5.57 569 704 330
C7-10 03/16/16 10 BQL BQL 19.2 BQL 64.3 BQL BQL BQL 49.6 36.9 84.3 264 154 416 2,480 4,680 1,670
C7-15 03/16/16 15 BQL BQL 15.7 BQL 45.3 BQL BQL BQL 53.5 31.8 14.4 246 129 223 2,970 6,100 2,920
C8-5 03/16/16 5 BQL BQL 1.50 BQL 1.24 BQL BQL BQL 4.72 BQL 5.04 26.5 15.2 24.4 1,850 4,370 1,730
C8-10 03/16/16 10 BQL BQL 22.2 BQL 99.1 BQL BQL BQL 54.2 52.2 287 300 179 555 3,660 7,020 3,170
C8-15 03/16/16 15 1.88 BQL 5.36 1.94 20.2 2.72 BQL 1.98 11.1 12.1 59 64 35.8 109 2,810 6,240 2,680
C9-5 03/16/16 5 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
C9-10 03/16/16 10 BQL BQL BQL BQL BQL BQL BQL 0.019 BQL BQL BQL BQL BQL BQL BQL BQL BQL
C9-15 03/16/16 15 BQL BQL BQL BQL BQL BQL 0.034 0.422 0.016 BQL BQL 0.005 BQL BQL BQL BQL BQL
0.0056 0.0019 4.3 3.3 4.9 1.7 0.37 0.091 0.16 1.7 4.3 8.5 8.3 4.6 68 31 540
18 7 626 626 1,560 1,564 156 350 313 626 1,200 782 782 3,129 939 469 1,500
164 63 16,350 16,350 40,000 40,880 4,088 3,100 8,176 16,350 3,200 20,440 20,440 81,760 24,528 12,264 40,000
NOTES:
Concentration exceeds Soil-to-Groundwater MSCCs
Concentration exceeds Residential Soil Cleanup Levels
BQL = Below Quantitation Limits
values shown in mg/Kg
MSCCs = maximum soil contaminant concentrations
ft. BLS = feet below land surface
mg/kg =milligrams per kilogram
# = Health based level > 100%
NE = Not Established TolueneIndustrial/Commercial Soil Cleanup Levels (mg/Kg)
Contaminant of Concern
Sample ID
Soil-to-Groundwater MSCCs (mg/Kg)
Residential Soil Cleanup Levels (mg/Kg)Ethylbenzenen-ButylbenzeneBenzeneNaphthaleneTable B-3
Summary of Soil Analytical Results
Pagetown Exxon
sec-ButylbenzeneAnalytical Method VPH
1,3,5-TrimethylbenzeneTotal xylenes1,2,4-TrimethylbenzeneComprehensive Site Assessment
8260/5035
1,2-DichloroethaneC9-C10 AromaticsC5-C8 AliphaticsC9-C12 Aliphaticsn-PropylbenzeneI-PropylbenzeneIPEMTBE
504.1
Well ID Date 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
4/13/2015 FP (1.71')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
7/6/2015 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
8/3/2015 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
3/23/2016 FP (0.80')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
11/12/2014 21.61 BQL NA NA NA BQL NA NA NA NA NA NA BQL NA NA BQL BQL BQL BQL BQL BQL See Data NA NA BQL BQL 111 BQL
8/3/2015 21.18 33.3 NA NA NA 90.6 NA NA NA NA NA NA 292 NA NA 1,120 BQL BQL 17.8 17.6 39.7 See Data NA NA NA NA NA NA
3/23/2016 17.65 4.71 BQL 2.72 BQL 13.4 2.38 9.61 0.55 2.98 1.15 0.94 2.97 35.8 12.8 74.3 BQL BQL NA NA NA NA NA NA NA NA NA NA
11/12/2014 22.54 BQL NA NA NA BQL NA NA NA NA NA NA BQL NA NA BQL BQL BQL BQL BQL BQL See Data NA NA BQL BQL BQL BQL
8/3/2015 22.24 BQL NA NA NA BQL NA NA NA NA NA NA BQL NA NA BQL BQL BQL BQL BQL BQL BQL NA NA NA NA NA NA
3/23/2016 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 NA
11/12/2014 23.15 BQL NA NA NA 1.94 NA NA NA NA NA NA 2.15 NA NA 12.3 BQL BQL BQL BQL BQL See Data NA NA BQL 402 109 BQL
8/3/2015 22.65 BQL NA NA NA 1.14 NA NA NA NA NA NA 1.31 NA NA 13.1 BQL BQL BQL BQL BQL BQL NA NA NA NA NA NA
3/23/2016 19.75 BQL BQL BQL BQL 2.49 BQL 14.5 BQL BQL 1.17 BQL 5.62 7.78 15.3 41.9 BQL BQL NA NA NA NA NA NA NA NA NA NA
8/3/2015 21.74 6,610 NA NA NA 4,970 NA NA NA NA NA NA 54,800 NA NA 44,900 11,600 1,580 132 67.6 621 See Data NA NA 79,700 68,730 62,049 BQL
3/23/2016 17.51 1,370 BQL BQL BQL 2,120 153 497 BQL 311 BQL BQL 14,100 2,280 608 12,300 BQL 97 NA NA NA NA NA NA NA NA NA NA
8/3/2015 20.53 BQL NA NA NA BQL NA NA NA NA NA NA 2.69 NA NA 6.83 BQL BQL BQL BQL BQL BQL NA NA 183 260 260 BQL
3/23/2016 15.17 BQL 2.71 60.7 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL NA NA NA NA NA NA NA NA NA NA
MW-7 3/23/2016 16.00 BQL BQL 0.84 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 38.9 1.43 BQL BQL BQL BQL BQL 28.5 187 BQL BQL BQL
MW-8 3/23/2016 17.29 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 8.40 BQL BQL BQL BQL
8/3/2015 NM BQL NA NA NA BQL NA NA NA NA NA NA BQL NA NA 2.66 BQL BQL BQL BQL BQL See Data NA NA BQL BQL 132 BQL
3/23/2016 19.18 BQL BQL 0.63 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL NA NA NA NA NA BQL NA NA NA NA
DW-2 3/23/2016 18.06 7.22 BQL BQL BQL 1.18 0.57 1.72 BQL BQL BQL BQL 5.94 7.98 BQL 29.7 15.6 3.38 BQL BQL BQL See Data 0.122 NA 155 184 BQL BQL
WSW-1 3/23/2016 --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
WSW-2 7/6/2015 --BQL NA NA NA BQL NA NA NA NA NA NA BQL NA NA BQL BQL BQL BQL BQL BQL NA NA NA NA NA NA NA
WSW-3 7/6/2015 --BQL NA NA NA BQL NA NA NA NA NA NA BQL NA NA BQL BQL BQL BQL BQL BQL NA NA NA NA NA NA NA
4/13/2015 --BQL NA NA NA BQL NA NA NA NA NA NA BQL NA NA BQL BQL BQL BQL BQL BQL NA NA NA NA NA NA NA
7/6/2015 --BQL NA NA NA BQL NA NA NA NA NA NA BQL NA NA BQL BQL BQL BQL BQL BQL NA NA NA NA NA NA NA
3/23/2016 --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
4/13/2015 --NA NA NA NA BQL NA NA NA NA NA NA NA NA NA NA BQL BQL BQL BQL BQL NA NA NA NA NA NA NA
7/6/2015 --BQL NA NA NA BQL NA NA NA NA NA NA BQL NA NA BQL BQL BQL BQL BQL BQL NA NA NA NA NA NA NA
3/23/2016 --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
4/13/2015 --BQL NA NA NA BQL NA NA NA NA NA NA BQL NA NA BQL BQL BQL BQL BQL BQL NA NA NA NA NA NA NA
7/6/2015 --BQL NA NA NA BQL NA NA NA NA NA NA BQL NA NA BQL BQL BQL BQL BQL BQL NA NA NA NA NA NA NA
3/23/2016 --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
WSW-9 7/6/2015 --BQL NA NA NA BQL NA NA NA NA NA NA BQL NA NA BQL BQL BQL BQL BQL BQL NA NA NA NA NA NA NA
WSW-10 7/6/2015 --BQL NA NA NA BQL NA NA NA NA NA NA BQL NA NA BQL BQL BQL BQL BQL BQL NA NA NA NA NA NA NA
4/13/2015 --BQL NA NA NA BQL NA NA NA NA NA NA BQL NA NA BQL BQL BQL BQL BQL BQL NA NA NA NA NA NA NA
7/6/2015 --BQL NA NA NA BQL NA NA NA NA NA NA BQL NA NA BQL BQL BQL BQL BQL BQL NA NA NA NA NA NA NA
3/23/2016 --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
WSW-13 7/6/2015 --BQL NA NA NA BQL NA NA NA NA NA NA BQL NA NA BQL BQL BQL BQL BQL BQL NA NA NA NA NA NA NA
4/13/2015 --21.7 NA NA NA BQL NA NA NA NA NA NA BQL NA NA 31.6 BQL BQL BQL BQL BQL NA NA NA NA NA NA NA
7/6/2015 --143 NA NA NA BQL NA NA NA NA NA NA BQL NA NA 225 BQL BQL BQL BQL 17.0 NA NA NA NA NA NA NA
3/23/2016 --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
4/12/2016 --7.1 BQL BQL 3.4 9.5 1.3 5.6 BQL BQL BQL BQL BQL 21.6 4.8 17.2 BQL BQL NA NA NA NA NA NA NA NA NA NA
4/13/2015 --BQL NA NA NA BQL NA NA NA NA NA NA BQL NA NA BQL BQL BQL BQL BQL BQL NA NA NA NA NA NA NA
7/6/2015 --BQL NA NA NA BQL NA NA NA NA NA NA BQL NA NA BQL BQL BQL BQL BQL BQL NA NA NA NA NA NA NA
WSW-16 7/6/2015 --BQL NA NA NA BQL NA NA NA NA NA NA BQL NA NA BQL BQL BQL BQL BQL BQL NA NA NA NA NA NA NA
WSW-17 7/6/2015 --BQL NA NA NA BQL NA NA NA NA NA NA BQL NA NA BQL BQL BQL BQL BQL BQL NA NA NA NA NA NA NA
4/13/2015 --BQL NA NA NA BQL NA NA NA NA NA NA BQL NA NA BQL BQL BQL BQL BQL BQL NA NA NA NA NA NA NA
7/6/2015 --BQL NA NA NA BQL NA NA NA NA NA NA BQL NA NA BQL BQL BQL BQL BQL BQL NA NA NA NA NA NA NA
3/23/2016 --BQL BQL BQL BQL 0.86 BQL BQL BQL BQL BQL BQL BQL BQL BQL 1.45 BQL BQL NA NA NA NA NA NA NA NA NA NA
4/13/2015 --BQL NA NA NA BQL NA NA NA NA NA NA BQL NA NA BQL BQL BQL BQL BQL BQL NA NA NA NA NA NA NA
7/6/2015 --BQL NA NA NA BQL NA NA NA NA NA NA BQL NA NA BQL BQL BQL BQL BQL BQL NA NA NA NA NA NA NA
3/23/2016 --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
WSW-23 7/6/2015 --BQL NA NA NA BQL NA NA NA NA NA NA BQL NA NA BQL BQL BQL BQL BQL BQL NA NA NA NA NA NA NA
WSW-24 7/6/2015 --BQL NA NA NA BQL NA NA NA NA NA NA BQL NA NA BQL BQL BQL BQL BQL BQL NA NA NA NA NA NA NA
1 0.6 70 0.4 600 70 6 70 70 25 70 600 400 400 500 20 70 30 1 6 N/A 0.02 15 400 700 200 10,000
5,000 N/A 70,000 400 84,500 25,000 6,000 6,900 30,000 11,700 8,500 260,000 28,500 25,000 85,500 20,000 70,000 12,500 1,000 5,000 N/A 50 15,000 NS NS NS NS
5 NS NS 5 700 NS NS NS NS NS NS 1,000 NS NS 10,000 NS NS NS NS NS N/A NS 15 NS NS NS NS
= Detected Concentration Exceeds the North Carolina 2L Groundwater Quality Standards (NC2LGWQS) or the EPA Drinking Water Standard
= Detected Concentration Exceeds the GCL
BQL = Below Quantitation Limits
Results are reported in µg/l
µg/L = micrograms per liter
GCL = gross contamination level
TOC = top of casing
NS = No Standard
N/A = Not Applicable
EPH and VPH = Extractable and Volatile Petroleum Hydrocarbons
FP = Free Product
NA = Not Analyzed
NM = Not Measured EDBLead625BNA+10 TICs
2-Methylnaphthalene602 or 6200B
BenzeneBromodichloromethaneChloroformN-Propylbenzene1,2-DichloroethaneTable B-4
Summary of Groundwater Analytical Results
Pagetown Exxon
EPH & VPH
Comprehensive Site Assessment
Analytical Method
C9-C22 AromaticsEthylbenzeneTolueneC19-C36 AliphaticsTotal XylenesMTBE1-MethylnaphthaleneNaphthaleneTICs DetectedSec-Butylbenzene1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneI-PropylbenzeneNaphthaleneN-Butylbenzenep-IsopropyltolueneEPA Drinking Water Standard (µg/l)C9-C18 AliphaticsC5-C8 AliphaticsGCL (µg/l)
Contaminant of Concern
WSW-14
WSW-15
WSW-12
WSW-20 IPENC2LGWQS Standard (µg/l)
WSW-5
WSW-22
WSW-6
WSW-7
MW-4
MW-3
MW-1
MW-5
MW-6
DW-1
MW-2
MAP ID OWNER NAME SITE ADDRESS MAILING ADDRESS WELL USE
APPROXIMATE
DISTANCE OF WELL
FROM SOURCE AREA
(FT.)
8173 Cherry Grove Road
Reidsville, NC 27320
8225 Cherry Grove Road
Reidsville, NC 27320
8173 Cherry Grove Road
Reidsville, NC 27320
8173 Cherry Grove Road
Reidsville, NC 27320
8173 Cherry Grove Road
Reidsville, NC 27320
408 Maverick Trail Drive
King, NC 27021
3115 Pagetown Road
Elon, NC 27244
3115 Pagetown Road
Elon, NC 27244
191 Pagetown Road
Elon, NC 27244
59 Pagetown Road
Elon, NC 27244
59 Pagetown Road
Elon, NC 27244
53 Pagetown Road
Elon, NC 27244
59 Pagetown Road
Elon, NC 27244
955 Squaw Valley Trail
Burlington, NC 27217
7951 Cherry Grove Road
Reidsville, NC 27320
7821 Cherry Grove Road
Reidsville, NC 27320
7801 Cherry Grove Road
Reidsville, NC 27320
7925 Cherry Grove Road
Reidsville, NC 27320
7925 Cherry Grove Road
Reidsville, NC 27320
8062 Cherry Grove Road
Reidsville, NC 27320
Table B-5
Water-Supply Well Information
Comprehensive Site Assessment
Pagetown Exxon
130
2 Melvin Butler 8225 Cherry Grove Road Potable 850
150
1 Inez Saunders Wrenn 8035 Cherry Grove Road Potable
640
540
3 Inez Saunders Wrenn 8173 Cherry Grove Road Potable
132
6 Inez Saunders Wrenn 8101 Cherry Grove Road Potable
910
5 Inez Saunders Wrenn 8101 Cherry Grove Road Potable
352
8 Stephen Jones, Jr.120 Pagetown Road Potable
380
7 James Wrenn 78 Pagetown Road Potable
588
10 Jessica Fleeger 191 Pagetown Road Potable
285
9 Stephen Jones, Jr.120 Pagetown Road Potable
680
12 Garland Walker 59 Pagetown Road Potable
460
11 Garland Walker 127 Pagetown Road Potable
765
14 Garland Walker 7993 Cherry Grove Road Potable
13 John Gibson 59 Pagetown Road Potable
15 Claude Sexton, Jr.7969 Cherry Grove Road Potable
575
17 Donna Paschal 7821 Cherry Grove Road Potable 1,110
1,274
19 James Cheek 7925 Cherry Grove Road Potable 390
20 James Cheek 7976Cherry Grove Road Potable
16 Hassell Terrell 7951 Cherry Grove Road Potable
18 Deborah Daye 7801 Cherry Grove Road Potable
405
22 William H. Saunders, Heirs 8062 Cherry Grove Road Potable 150
Map ID Name Mailing Address
8062 Cherry Grove Road
Reidsville, NC 27320
8173 Cherry Grove Road
Reidsville, NC 27320
59 Pagetown Road
Elon, NC 272443Garland Walker
Table B-6
Adjacent Property Owner Information
Comprehensive Site Assessment
Pagetown Exxon
1 William H. Saunders, Heirs
2 Inez Saunders Wrenn
MW-1 10/22/2014 2 35 20-35 Product (0.80 Feet)99.66 FP
MW-2 11/11/2014 2 30 15-30 17.65 99.85 82.20
MW-3 11/11/2014 2 30 15-30 18.75 100.00 81.25
MW-4 11/11/2014 2 30 15-30 19.75 99.10 79.35
MW-5 7/23/2015 2 30 15-30 17.51 99.11 81.60
MW-6 7/23/2015 2 30 15-30 15.17 97.53 82.36
MW-7 3/17/2016 2 30 15-30 16.00 101.85 85.85
MW-8 3/16/2016 2 30 15-30 17.29 102.99 85.70
DW-1 7/22 & 23/2015 2 45 (I) 55(O)50-55 19.18 99.94 NM
DW-2 3/16 & 17/2016 2 45 (I) 55(O)50-55 18.06 99.94 NM
** - 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).
Well Diameter
(inches)
Depth to Water
(feet TOC) 3/23/16
Relative Elevation
(feet TOC)Depth (feet)
Screen
Interval
(feet)
Installation Date
Table B-7
Well Construction Information
Comprehensive Site Assessment
Pagetown Exxon
Groundwater
Elevation (feet)Monitoring Well ID

O APPENDICES
Comprehensive Site Assessment May 3, 2016
Pagetown Exxon Progress Project 1016066.001
Reidsville, Caswell County, North Carolina

14
P REFERENCES

North Carolina Department of Natural Resources and Community Development Geologic Map of
North Carolina published 1985.
Underground Storage Tank Section, NCDEQ Guidelines for Assessment and Corrective Action for
UST Releases dated December 1, 2013.
Cherry Grove, NC 7½-minute topographic maps, published by the DeLorme TopoQuads, 1997

Phase II Limited Site Assessment, prepared by Progress, dated November 26, 2014.

Free Product Recovery and Water-Supply Well Sampling Report, prepared by Progress, dated May 8,
2015.

Water-Supply Well Sampling Report, prepared by Progress, dated July 31, 2015.

APPENDIX A

WELL CONSTRUCTION PERMIT, ACCESS AGREEMENTS, WELL CONSTRUCTION
RECORDS, BORING LOGS AND LITHOLOGIC DESCRIPTIONS, AND FIELD
SAMPLING SHEETS

Remarks:
Total Depth: 15.0'
Project Manager: J. Ballsieper
Casing Diameter:
Hole Diameter: 2.25"Start Date: 3/16/16
Date: March 2016
Location: Reidsville, NC
Project: Pagetown Exxon
Job No.: 1016066.001
Boring/Well ID:
Geologist:
60
50
40
30
Drilling Method: Geoprobe
20
10
Sample
ID
Complete Date: 3/16/16
(feet)D epthR ec/A dv(ppm )B low s (in)P ID
Geologic Description
L ith o lo g yW ater TablePage 1 of 1
30
40
20
10
Well Diagram
C-1
60
50
Boring terminated @ 15 feet bls
120 Fayette Street
Winston-Salem, North Carolina 27101
[phone]
Red Orange Sandy Clay18.6
73.9
328.3
Brown Red Orange Silty Clay
Remarks:
Total Depth: 15.0'
Project Manager: J. Ballsieper
Casing Diameter:
Hole Diameter: 2.25"Start Date: 3/16/16
Date: March 2016
Location: Reidsville, NC
Project: Pagetown Exxon
Job No.: 1016066.001
Boring/Well ID:
Geologist:
60
50
40
30
Drilling Method: Geoprobe
20
10
Sample
ID
Complete Date: 3/16/16
(feet)D epthR ec/A dv(ppm )B low s (in)P ID
Geologic Description
L ith o lo g yW ater TablePage 1 of 1
30
40
20
10
Well Diagram
C-2
60
50
Boring terminated @ 15 feet bls
120 Fayette Street
Winston-Salem, North Carolina 27101
[phone]
Dk. Red Silty Clay180.9
230.5
373.1
Dk. Red Orange Silty Clay
Remarks:
Total Depth: 15.0'
Project Manager: J. Ballsieper
Casing Diameter:
Hole Diameter: 2.25"Start Date: 3/16/16
Date: March 2016
Location: Reidsville, NC
Project: Pagetown Exxon
Job No.: 1016066.001
Boring/Well ID:
Geologist:
60
50
40
30
Drilling Method: Geoprobe
20
10
Sample
ID
Complete Date: 3/16/16
(feet)D epthR ec/A dv(ppm )B low s (in)P ID
Geologic Description
L ith o lo g yW ater TablePage 1 of 1
30
40
20
10
Well Diagram
C-3
60
50
Boring terminated @ 15 feet bls
120 Fayette Street
Winston-Salem, North Carolina 27101
[phone]
Dk. Red Brown Silty Clay
444.0
309.1
529.8
Tan Orange Sandy Clay
Red Orange Sandy Clay
Remarks:
Total Depth: 15.0'
Project Manager: J. Ballsieper
Casing Diameter:
Hole Diameter: 2.25"Start Date: 3/16/16
Date: March 2016
Location: Reidsville, NC
Project: Pagetown Exxon
Job No.: 1016066.001
Boring/Well ID:
Geologist:
60
50
40
30
Drilling Method: Geoprobe
20
10
Sample
ID
Complete Date: 3/16/16
(feet)D epthR ec/A dv(ppm )B low s (in)P ID
Geologic Description
L ith o lo g yW ater TablePage 1 of 1
30
40
20
10
Well Diagram
C-4
60
50
Boring terminated @ 15 feet bls
120 Fayette Street
Winston-Salem, North Carolina 27101
[phone]
Dk. Red Orange Silty Clay
126.2
508.6
556.3
Tan Sandy Clay
Tan Orange Sandy Clay
Remarks:
Total Depth: 15.0'
Project Manager: J. Ballsieper
Casing Diameter:
Hole Diameter: 2.25"Start Date: 3/16/16
Date: March 2016
Location: Reidsville, NC
Project: Pagetown Exxon
Job No.: 1016066.001
Boring/Well ID:
Geologist:
60
50
40
30
Drilling Method: Geoprobe
20
10
Sample
ID
Complete Date: 3/16/16
(feet)D epthR ec/A dv(ppm )B low s (in)P ID
Geologic Description
L ith o lo g yW ater TablePage 1 of 1
30
40
20
10
Well Diagram
C-5
60
50
Boring terminated @ 15 feet bls
120 Fayette Street
Winston-Salem, North Carolina 27101
[phone]
Dk. Red Silty Clay
350.8
666.7
716.4
Brown Orange Silty Clay
Red Orange Silty Clay
Remarks:
Total Depth: 15.0'
Project Manager: J. Ballsieper
Casing Diameter:
Hole Diameter: 2.25"Start Date: 3/16/16
Date: March 2016
Location: Reidsville, NC
Project: Pagetown Exxon
Job No.: 1016066.001
Boring/Well ID:
Geologist:
60
50
40
30
Drilling Method: Geoprobe
20
10
Sample
ID
Complete Date: 3/16/16
(feet)D epthR ec/A dv(ppm )B low s (in)P ID
Geologic Description
L ith o lo g yW ater TablePage 1 of 1
30
40
20
10
Well Diagram
C-6
60
50
Boring terminated @ 15 feet bls
120 Fayette Street
Winston-Salem, North Carolina 27101
[phone]
Dk. Red Silty Clay
335.0
378.7
624.0
Tan Orange Sandy Clay
Remarks:
Total Depth: 15.0'
Project Manager: J. Ballsieper
Casing Diameter:
Hole Diameter: 2.25"Start Date: 3/16/16
Date: March 2016
Location: Reidsville, NC
Project: Pagetown Exxon
Job No.: 1016066.001
Boring/Well ID:
Geologist:
60
50
40
30
Drilling Method: Geoprobe
20
10
Sample
ID
Complete Date: 3/16/16
(feet)D epthR ec/A dv(ppm )B low s (in)P ID
Geologic Description
L ith o lo g yW ater TablePage 1 of 1
30
40
20
10
Well Diagram
C-7
60
50
Boring terminated @ 15 feet bls
120 Fayette Street
Winston-Salem, North Carolina 27101
[phone]
Dk. Red Silty Clay
136.5
992.6
626.8
Remarks:
Total Depth: 15.0'
Project Manager: J. Ballsieper
Casing Diameter:
Hole Diameter: 2.25"Start Date: 3/16/16
Date: March 2016
Location: Reidsville, NC
Project: Pagetown Exxon
Job No.: 1016066.001
Boring/Well ID:
Geologist:
60
50
40
30
Drilling Method: Geoprobe
20
10
Sample
ID
Complete Date: 3/16/16
(feet)D epthR ec/A dv(ppm )B low s (in)P ID
Geologic Description
L ith o lo g yW ater TablePage 1 of 1
30
40
20
10
Well Diagram
C-8
60
50
Boring terminated @ 15 feet bls
120 Fayette Street
Winston-Salem, North Carolina 27101
[phone]
Dk. Red Silty Clay
413.3
1004
1297
Orange Red Sandy Clay
Remarks:
Total Depth: 15.0'
Project Manager: J. Ballsieper
Casing Diameter:
Hole Diameter: 2.25"Start Date: 3/16/16
Date: March 2016
Location: Reidsville, NC
Project: Pagetown Exxon
Job No.: 1016066.001
Boring/Well ID:
Geologist:
60
50
40
30
Drilling Method: Geoprobe
20
10
Sample
ID
Complete Date: 3/16/16
(feet)D epthR ec/A dv(ppm )B low s (in)P ID
Geologic Description
L ith o lo g yW ater TablePage 1 of 1
30
40
20
10
Well Diagram
C-9
60
50
Boring terminated @ 15 feet bls
120 Fayette Street
Winston-Salem, North Carolina 27101
[phone]
Dk. Red Silty Clay361.2
605.3
455.5
Mottled Dk. Red, Orange,
Black Silty Clay
Remarks:
Total Depth: 55.0'
Project Manager: J. Ballsieper
Casing Diameter: 6" Outer/ 2" Inner
Hole Diameter: 8.5"Start Date: 7/22/15
Date: July 2015
Location: Reidsville, NC
Project: Pagetown Exxon Job No.: 1015059.003
Boring/Well ID:
Geologist:
60
50
40
30
Drilling Method: HSA & Air-Rotary
20
10
Sample
ID
Completion Date: 7/23/15
(feet)D epthR ec/A dv(ppm )B low s (in)P ID
Geologic Description
L ith o lo g yW ater TablePage 1 of 1
30
40
20
10
Well Diagram
DW-1
60
50
Boring terminated @ 55 feet bls
Ground
Surface
(45.0') 6"
Schedule
40 PVC
(7.0') #2
Quartz Sand
(5.0') 2"
0.010"
Slotted PVC
Grout to
Surface
120 Fayette Street
Winston-Salem, North Carolina 27101
[phone]
Bentonite
Reddish Brown Fine
Sandy Silt
(55.0') 2"
Schedule
40 PVC
Grout
Lt. Brown Silty Clay
Orange Brown Fine Sand
Lt. Brown Moist to Wet
Fine Sandy Silt
(slight Petroleum Odor)
Remarks:
Total Depth: 55.0'
Project Manager: J. Ballsieper
Casing Diameter: 6" Outer/ 2" Inner
Hole Diameter: 8.5"Start Date: 3/16/16
Date: March 2016
Location: Reidsville, NC
Project: Pagetown Exxon Job No.: 1016066.001
Boring/Well ID:
Geologist:
60
50
40
30
Drilling Method: HSA & Air-Rotary
20
10
Sample
ID
Completion Date: 3/17/16
(feet)D epthR ec/A dv(ppm )B low s (in)P ID
Geologic Description
L ith o lo g yW ater TablePage 1 of 1
30
40
20
10
Well Diagram
DW-2
60
50
Boring terminated @ 55 feet bls
Ground
Surface
(45.0') 6"
Schedule
40 PVC
(7.0') #2
Quartz Sand
(5.0') 2"
0.010"
Slotted PVC
Grout to
Surface
120 Fayette Street
Winston-Salem, North Carolina 27101
[phone]
Bentonite
Dk. Red Silty Clay
(55.0') 2"
Schedule
40 PVC
GroutOrange Tan Sandy Clay
Tan Sandy Clay
Remarks:
Total Depth: 35'
Project Manager: J. Ballsieper
Casing Diameter: 2.00 (I.D.)
Hole Diameter: 6.25"
TELEPHONE: [phone]
P.O. BOX 5884
WINSTON-SALEM, NC 27113-5884
Start Date: 10/22/14
Date: October 2014
Location: Reidsville, NC
Project: Pagetown Exxon Job No.: 1015059.003
Boring/Well ID:
Geologist:
60
50
40
30
Drilling Method: Geoprobe w/SSA
20
10
Sample
ID
Complete Date: 10/22/14
(feet)D epthR ec/A dv(ppm )B low s (in)P ID
Geologic Description
L ith o lo g yW ater TablePage 1 of 1
30
40
20
10
Well Diagram
MW-1
60
50
Boring Terminated @ 35 feet bls
Fill Material
Ground
Surface
(20') Schedule
40 PVC
(15') 0.010"
Slotted PVC
(8.0') Bent.
(17.0') #2
Sand
(10.0') Grout
No Sample
(Wet @ 25' bls)
Remarks:
Total Depth: 30.0'
Project Manager: J. Ballsieper
Casing Diameter: 2.00 (I.D.)
Hole Diameter: 6.25"
TELEPHONE: [phone]
P.O. BOX 5884
WINSTON-SALEM, NC 27113-5884
Start Date: 11/12/14
Date: November 2014
Location: Reidsville, NC
Project: Pagetown Exxon Job No.: 1015059.003
Boring/Well ID:
Geologist:
30
25
20
15
Drilling Method: Geoprobe HSA
10
5
Sample
ID
Complete Date: 11/12/14
(feet)D epthR ec/A dv(ppm )B low s (in)P ID
Geologic Description
L ith o lo g yW ater TablePage 1 of 1
15
20
10
5
Well Diagram
MW-2
30
25
Boring terminated @ 30.0 feet bls
Ground
Surface
(15.0') Schedule
40 PVC
(15.0') 0.010"
Slotted PVC
(3.0') Bent.
(17.0') #2
Sand
(10.0') Grout
Reddish Brown Clayey Silt
Lt. Brown Silty Fine Sand
Reddish Brown Silty Fine Sand
Reddish Brown Fine Sandy Silt
Light Brown Silty Fine Sand
Light Brown Fine Sandy Silt (moist)
Light Brown Silty Fine Sand
0.1
0.1
0.1
0.1
0.0
Remarks:
Total Depth: 30.0'
Project Manager: J. Ballsieper
Casing Diameter: 2.00 (I.D.)
Hole Diameter: 6.25"
TELEPHONE: [phone]
P.O. BOX 5884
WINSTON-SALEM, NC 27113-5884
Start Date: 11/12/14
Date: November 2014
Location: Reidsville, NC
Project: Pagetown Exxon Job No.: 1015059.003
Boring/Well ID:
Geologist:
30
25
20
15
Drilling Method: Geoprobe HSA
10
5
Sample
ID
Complete Date: 11/12/14
(feet)D epthR ec/A dv(ppm )B low s (in)P ID
Geologic Description
L ith o lo g yW ater TablePage 1 of 1
15
20
10
5
Well Diagram
MW-3
30
25
Boring terminated @ 30.0 feet bls
Ground
Surface
(15.0') Schedule
40 PVC
(15.0') 0.010"
Slotted PVC
(3.0') Bent.
(17.0') #2
Sand
(10.0') Grout
Reddish Brown Clayey Silt
Reddish Brown Fine Sandy Silt
Orange to Reddish Brown Banded
Silty Fine Sand
Reddish Brown Silty Clay
Brown Very Fine Sandy Silty
0.0
0.0
768
224
437
Reddish Brown Silty Fine Sand
Remarks:
Total Depth: 30.0'
Project Manager: J. Ballsieper
Casing Diameter: 2.00 (I.D.)
Hole Diameter: 6.25"
TELEPHONE: [phone]
P.O. BOX 5884
WINSTON-SALEM, NC 27113-5884
Start Date: 11/12/14
Date: November 2014
Location: Reidsville, NC
Project: Pagetown Exxon Job No.: 1015059.003
Boring/Well ID:
Geologist:
30
25
20
15
Drilling Method: Geoprobe HSA
10
5
Sample
ID
Complete Date: 11/12/14
(feet)D epthR ec/A dv(ppm )B low s (in)P ID
Geologic Description
L ith o lo g yW ater TablePage 1 of 1
15
20
10
5
Well Diagram
MW-4
30
25
Boring terminated @ 30.0 feet bls
Ground
Surface
(15.0') Schedule
40 PVC
(15.0') 0.010"
Slotted PVC
(3.0') Bent.
(17.0') #2
Sand
(10.0') Grout
Reddish Brown Clayey Silt
Orange Brown Fine Sandy Silt
60.5
245
152
97.0
39.0
Reddish Brown Clayey Silt
(Moist to Wet)
Remarks:
Total Depth: 30.0'
Project Manager: J. Ballsieper
Casing Diameter: 2.00 (I.D.)
Hole Diameter: 6.25"
TELEPHONE: [phone]
P.O. BOX 5884
WINSTON-SALEM, NC 27113-5884
Start Date: 7/23/15
Date: July 2015
Location: Reidsville, NC
Project: Pagetown Exxon Job No.: 1015059.003
Boring/Well ID:
Geologist:
30
25
20
15
Drilling Method: Air-Rotary
10
5
Sample
ID
Complete Date: 7/23/15
(feet)D epthR ec/A dv(ppm )B low s (in)P ID
Geologic Description
L ith o lo g yW ater TablePage 1 of 1
15
20
10
5
Well Diagram
MW-5
30
25
Boring terminated @ 30.0 feet bls
Ground
Surface
(15.0') Schedule
40 PVC
(15.0') 0.010"
Slotted PVC
(3.0') Bent.
(17.0') #2
Sand
(10.0') Grout
Lt. Orange Silty Clay
(Pet. Odor)
Reddish Brown Silty Sand
(Pet. Odor)
Tan Silty Clay
(Pet. Odor)
Remarks:
Total Depth: 30.0'
Project Manager: J. Ballsieper
Casing Diameter: 2.00 (I.D.)
Hole Diameter: 6.25"
TELEPHONE: [phone]
P.O. BOX 5884
WINSTON-SALEM, NC 27113-5884
Start Date: 7/23/15
Date: July 2015
Location: Reidsville, NC
Project: Pagetown Exxon Job No.: 1015059.003
Boring/Well ID:
Geologist:
30
25
20
15
Drilling Method: Air-Rotary
10
5
Sample
ID
Complete Date: 7/23/15
(feet)D epthR ec/A dv(ppm )B low s (in)P ID
Geologic Description
L ith o lo g yW ater TablePage 1 of 1
15
20
10
5
Well Diagram
MW-6
30
25
Boring terminated @ 30.0 feet bls
Ground
Surface
(15.0') Schedule
40 PVC
(15.0') 0.010"
Slotted PVC
(3.0') Bent.
(17.0') #2
Sand
(10.0') Grout
Reddish Brown Silty Clay
Remarks:
Total Depth: 30.0'
Project Manager: J. Ballsieper
Casing Diameter: 2.00 (I.D.)
Hole Diameter: 6.25"
TELEPHONE: [phone]
P.O. BOX 5884
WINSTON-SALEM, NC 27113-5884
Start Date: 3/16/16
Date: March 2016
Location: Reidsville, NC
Project: Pagetown Exxon Job No.: 1016066.001
Boring/Well ID:
Geologist:
30
25
20
15
Drilling Method: Geoprobe HSA
10
5
Sample
ID
Complete Date: 3/16/16
(feet)D epthR ec/A dv(ppm )B low s (in)P ID
Geologic Description
L ith o lo g yW ater TablePage 1 of 1
15
20
10
5
Well Diagram
MW-8
30
25
Boring terminated @ 30.0 feet bls
Ground
Surface
(15.0') Schedule
40 PVC
(15.0') 0.010"
Slotted PVC
(3.0') Bent.
(17.0') #2
Sand
(10.0') Grout
Red Silty Clay
Brown Red Sandy Clay
Red Orange Sandy Clay

APPENDIX B

STANDARD SAMPLING PROCEDURES

EXHIBIT A

Procedures for Developing the Monitoring Wells

 Well development will be performed no sooner than 24 hours after well construction is completed.

 Wells will be developed by bailing or pumping a minimum of five well-volumes of groundwater
from the well.

 The turbidity, pH, specific conductivity, dissolved oxygen and temperature of the development
water will be measured and recorded, and used as an indicator parameter to determine the
completion of the development process.

EXHIBIT B

Procedures for Collecting Groundwater Samples

 Each well will be purged of three standing well volumes prior to sample collection to remove
stagnant water from the well and well bore in an effort to collect samples that are representative of
the water quality in the formation surrounding each well.

 Chemical preservatives, if applicable, will be added to sample bottles by the laboratory.

 Sample bottles will be labeled prior to sample collection.

 Sample bottles will be filled directly from the Teflon or disposable bailer. Volatile organic samples
will be collected first.

 The pH, temperature, and specific conductance of the sample will be measured and recorded.
These measurements will be taken from a sample deposited in a separate container. Visual
characteristics of the sample, including insoluble materials, will be recorded.

 Caps will be secured on bottles, bottle will be placed in plastic bags and the bags will be sealed.

 Documentation, including Chain-of-Custody Record and laboratory analytical request form, will
be completed for all samples.

 Samples will be packed in coolers with "bubble wrap" and ice packs for shipment.

 Chain-of-Custody Record and analytical request form will be placed inside cooler sealed with
security tape.

 Samples will be shipped via overnight express to the analytical laboratory within 24 hours
following collection.

 Laboratory will be advised of each sample shipment.

APPENDIX C

LABORATORY REPORT FOR SOIL AND GROUNDWATER SAMPLES
AND CHAIN-OF-CUSTODY RECORDS

APPENDIX D

RECOVERY TEST DATA AND CALCULATIONS
HYDRAULIC CONDUCTIVITY TEST DATA AND CALCULATIONS - HVORSLEV METHOD
PAGETOWN EXXON, REIDSVILLE, NORTH CAROLINA
PROGRESS PROJECT NO. 1015059.003
MONITORING WELL MW-2
8/3/2015
Total Depth 30 ft
Screened Length 15 ft
Static Water Level 21.18 ft
Well Radius (r)1 in =2.54 cm
Anulus Radius (R)3.125 in =7.9375 cm
If rise/fall is in sand pack replace r with re = {r2 + 0.3(R2 - r2)}1/2 :re=4.84 cm
Interpolation
DH / Hi 0.419 Time 7.00 closest T above H/Hi = .37
DH / Hi 0.378 T(0) =8.00 (interpolates T at H / Hi is .37)
DH / Hi 0.331 Time 9.00 closest T below H/Hi = .37
DH / Hi 0.37 T(0) = 7.7 from graph
Hydraulic Conductivity = r2 [ln(Leff/R)]/2*Leff*T(0)
L(eff) =8.82 ft (depth - static water level
L(eff) =268.8 cm or screen length)
Results -based on T(0) from interpolation
T(0) =480.0 sec
Hydraulic Conductivity =3.20E-04 cm/sec
Hydraulic Conductivity =0.91 ft/day
Hydraulic Conductivity =330.7 ft/yr
Results - based on T (0) from Graph
T(0) =462.0 sec
Hydraulic Conductivity =3.32E-04 cm/sec
Hydraulic Conductivity =0.94 ft/day
Hydraulic Conductivity =343.6 ft/yr
Elapsed Elapsed Elapsed
Time D H DH / Hi Time D H DH / Hi Time D H DH / Hi
0 1.48 1.000 20 0.16 0.108
0.25 1.44 0.973 25 0.11 0.074
0.5 1.4 0.946
0.75 1.32 0.892
1 1.27 0.858
1.25 1.22 0.824
1.5 1.18 0.797
1.75 1.13 0.764
2 1.10 0.743
2.5 1.03 0.696
3 0.97 0.655
3.5 0.92 0.622
4 0.85 0.574
4.5 0.80 0.541
5 0.77 0.520
6 0.70 0.473
7 0.62 0.419
8 0.56 0.378
9 0.49 0.331
10 0.44 0.297
15 0.28 0.189
0.100
1.000
0 2 4 6 8 10 12 14 16H/HiTime in Minutes
Slug Test Results -Pagetown Exxon
MW-2, 8/3/2015
0.37 7.7 Min.
HYDRAULIC CONDUCTIVITY TEST DATA AND CALCULATIONS - HVORSLEV METHOD
PAGETOWN EXXON, REIDSVILLE, NORTH CAROLINA
PROGRESS PROJECT NO. 1015059.003
MONITORING WELL MW-4
8/3/2015
Total Depth 30 ft
Screened Length 15 ft
Static Water Level 22.65 ft
Well Radius (r)1 in =2.54 cm
Anulus Radius (R)3.125 in =7.9375 cm
If rise/fall is in sand pack replace r with re = {r2 + 0.3(R2 - r2)}1/2 :re=4.84 cm
Interpolation
DH / Hi 0.428 Time 15.00 closest T above H/Hi = .37
DH / Hi 0.37 T(0) =20.00 (interpolates T at H / Hi is .37)
DH / Hi 0.256 Time 25.00 closest T below H/Hi = .37
DH / Hi 0.37 T(0) = 14.4 from graph
Hydraulic Conductivity = r2 [ln(Leff/R)]/2*Leff*T(0)
L(eff) =7.35 ft (depth - static water level
L(eff) =224.0 cm or screen length)
Results -based on T(0) from interpolation
T(0) =1200.0 sec
Hydraulic Conductivity =1.45E-04 cm/sec
Hydraulic Conductivity =0.41 ft/day
Hydraulic Conductivity =150.5 ft/yr
Results - based on T (0) from Graph
T(0) =864.0 sec
Hydraulic Conductivity =2.02E-04 cm/sec
Hydraulic Conductivity =0.57 ft/day
Hydraulic Conductivity =209.1 ft/yr
Elapsed Elapsed Elapsed
Time D H DH / Hi Time D H DH / Hi Time D H DH / Hi
0 2.15 1.000 20 0.72 0.335
0.25 2.11 0.981 25 0.55 0.256
0.5 2.05 0.953 30 0.46 0.214
0.75 2.01 0.935
1 1.98 0.921
1.25 1.95 0.907
1.5 1.91 0.888
1.75 1.86 0.865
2 1.83 0.851
2.5 1.76 0.819
3 1.71 0.795
3.5 1.65 0.767
4 1.6 0.744
4.5 1.56 0.726
5 1.51 0.702
6 1.44 0.670
7 1.35 0.628
8 1.3 0.605
9 1.21 0.563
10 1.16 0.540
15 0.92 0.428
0.100
1.000
0 2 4 6 8 10 12 14 16H/HiTime in Minutes
Slug Test Results -Pagetown Exxon
MW-4, 8/3/2015
0.37
14.4 Min.