AS-3241_28414_CA_MRP_20140605_ALL

June 5, 2014

Mr. Dan Murphy
Asheville Regional Office - DENR
Division of Waste Management
UST Section
2090 U.S. Highway 70
Swannanoa, North Carolina 28778

Subject: PRE-CAP MONITORING REPORT
WILCOHESS #353
502 WILKESBORO BLVD. SE
LENOIR, CALDWELL COUNTY, NORTH CAROLINA
INCIDENT NO. 28414
RISK, RANKING AND ABATEMENT SCORE: I-184-D
MID-ATLANTIC JOB NO. 000R1760.11

Dear Mr. Murphy:

On behalf of WILCOHESS, LLC, Mid-Atlantic Associates, Inc. submits the enclosed
Groundwater Monitoring Report for the above-referenced site. If you have any questions,
please contact me at [phone].

Sincerely,

MID-ATLANTIC ASSOCIATES, INC.

Charles B. Hoffman, P.G.
Project Geologist

pc: Mr. John Schenkewitz, Hess Corporation

June 5, 2014

Mr. John Schenkewitz
Remediation Manager
Hess Corporation
1 Hess Plaza
Woodbridge, New Jersey 07095

Subject: PRE-CAP MONITORING REPORT
WILCOHESS #353
502 WILKESBORO BLVD. SE
LENOIR, CALDWELL COUNTY, NORTH CAROLINA
INCIDENT NO. 28414
MID-ATLANTIC JOB NO. 000R1760.11

Dear Mr. Schenkewitz:

Mid-Atlantic Associates, Inc. is pleased to present this report of environmental services
for the WILCOHESS #353 facility. The purpose of our services, as described in the
attached report, was to perform groundwater monitoring.

A copy of this report has been sent to the North Carolina Division of Waste Management,
Asheville Regional Office, UST Section. We appreciate the opportunity to provide
environmental services to WILCOHESS and look forward to assisting you through project
completion. Please contact us at 800-486-7568 if any questions arise or if we may be of
further service.

Sincerely,

MID-ATLANTIC ASSOCIATES, INC.

Charles B. Hoffman, P.G.
Project Geologist

PRE-CAP MONITORING REPORT
WILCOHESS #353
FACILITY I.D. NO.: 0-033119
502 WILKESBORO BLVD. SE
LENOIR, CALDWELL COUNTY, NORTH CAROLINA
INCIDENT NO. 28414

Risk Classification: Intermediate
Ranking (RRA): I-184-D

Prepared For:

WILCOHESS, LLC
5446 University Parkway
Winston-Salem, North Carolina 27105
[phone]

Prepared By:

Mid-Atlantic Associates, Inc.
409 Rogers View Court
Raleigh, North Carolina 27610
[phone]

June 5, 2014

TABLE OF CONTENTS

LIST OF ACRONYMS ..................................................................................................... i

1.0 INTRODUCTION ..................................................................................................... 1

2.0 POTENTIAL RECEPTORS ..................................................................................... 1

3.0 FIELD ACTIVITIES ................................................................................................. 2

4.0 DISCUSSION OF SAMPLING RESULTS .............................................................. 2

5.0 SUMMARY, CONCLUSIONS AND RECOMMENDATIONS ................................... 5

DRAWINGS

Drawing 1.1 Topographic Site Map
Drawing 1.2 Site and Monitoring Well Location Map
Drawing 4.1 Estimated Isoconcentration Map - Benzene in Shallow Groundwater
– May 1-2, 2014
Drawing 4.2 Estimated Isoconcentration Map – Toluene in Shallow Groundwater
– May 1-2, 2014
Drawing 4.3 Estimated Water Table Contour Map – May 1, 2014

TABLES

Table 3.1 Summary of Historical Free Product Gauging Events
Table 3.2 Historical Liquid Level Measurements
Table 4.1 Summary of Surface Water Sampling Results for Selected
Compounds
Table 4.2 Elevation Comparison of the Water Table to Drainage Ditch
Table 4.3 Summary of Historical Groundwater Monitoring Results for Selected
Compounds

APPENDICES

Appendix A Selected Historical Assessment Information
Appendix B Notice of Regulatory Requirements dated January 6, 2014
Appendix C Mid-Atlantic Field Procedures
Appendix D Laboratory Analytical Report and Chain-of-Custody Record for
Surface and Groundwater Samples
Appendix E Hydraulic Gradient Calculation

i
LIST OF ACRONYMS

2000 Guidelines Groundwater Section Guidelines for Investigation
and Remediation of Soil and Groundwater, DENR,
Division of Water Quality Groundwater Section, July
2000.
2001 Guidelines Underground Storage Tank Section Guidelines for
Assessment and Corrective Action, DENR, Division of Waste Management UST Section, July 2001.

AFVR Aggressive Fluid-Vapor Recovery
AS Air Sparge
AST Aboveground Storage Tank

BQL Below (Laboratory Practical) Quantitation Limit
BLS Below Land Surface
BTEX Benzene, Toluene, Ethylbenzene, Xylenes

CAP Corrective Action Plan
cm Centimeter
COC Constituents of Concern
CSA Comprehensive Site Assessment

DIPE Diisopropyl Ether (also IPE: Isopropyl Ether)
DNAPL Dense Non-Aqueous Phase Liquids
DO Dissolved Oxygen
DPT Direct Push Technology
DRO Diesel Range Organics
DSCA North Carolina Dry-Cleaning Solvent Act
DTW Depth to Water
DWM Division of Waste Management
DWQ Division of Water Quality

EDB Ethylene di-bromide
EPA Environmental Protection Agency
EPH Extractable Petroleum Hydrocarbons

FID Flame Ionization Detector
FT Feet

GCL Gross Contamination Level
GIS Geographic Information System
GPM Gallons Per Minute
GPS Global Positioning System
GRO Gasoline Range Organics

ID Identification
IDW Investigation Derived Waste
IGQS Interim Groundwater Quality Standards

LSA Limited Site Assessment
LUST Leaking Underground Storage Tank

m Meter
MADEP Massachusetts Department of Environmental
Protection
Mid-Atlantic Mid-Atlantic Associates, Inc.
MDL Method Detection Limit
mg/Kg Milligrams per Kilogram
mg/L Milligrams per Liter
MMP Minimum Management Practices
MMPE Mobile Multi-Phase Extraction
MNA Monitored Natural Attenuation
MSCC Maximum Soil Contaminant Concentration
MSL Mean Sea Level

MTBE Methyl tertiary butyl ether
μg/Kg Micrograms per Kilogram
μg/L Micrograms per Liter

NA Not Analyzed
N/A Not Applicable
NC North Carolina
NCAC North Carolina Administrative Code
NCDENR North Carolina Department of Environment
and Natural Resources
NCGQS North Carolina Groundwater Quality
Standards
NCSWQS North Carolina Surface Water Quality
Standards
ND Not Detected
NM Not Measured
NORR Notice of Regulatory Requirements
NOV Notice of Violation
NS Not Sampled

OVA Organic Vapor Analyzer

PA Prioritization Assessment
PAA Prioritization Assessment Agreement
PAH Polynuclear Aromatic Hydrocarbons
Pb Lead
PCBs Polychlorinated Biphenyls
PCE Perchloroethylene (also tetrachloroethene)
PPB Parts Per Billion
PPM Parts Per Million
PID Photo Ionization Detector
POTW Publicly Owned Treatment Works
PQL Practical Quantitation Limit
PRF Prioritization Ranking Form
PVC Polyvinyl chloride

RBCA Risk-Based Corrective Action
RCRA Resource Conservation and Recovery Act
ROI Radius of Influence

s Seconds
SAR Soil Assessment Report
SOW Scope of Work
STG Soil-to-Groundwater
SVE Soil Vapor Extraction
SVOC Semi-Volatile Organic Compound

TDHF Toxicologically Defined Hydrocarbon
Fractions
TCLP Toxicity Characteristic Leaching Procedure
TIC Tentatively Identified Compound
TOC Top of Casing
TPH Total Petroleum Hydrocarbons

US United States
USCS Unified Soil Classification System
USGS United States Geological Survey
UST Underground Storage Tank
UT Unnamed Tributary
VOC Volatile Organic Compounds
VPH Volatile Petroleum Hydrocarbons

yr Year

1.0 INTRODUCTION

The subject site is the WILCOHESS #353 site located at 502 Wilkesboro Boulevard SE in
Lenoir, North Carolina (Drawings 1.1 and 1.2). The site is currently used as a petroleum
fuel retailing facility and convenience store. The facility operates three 12,000-gallon
gasoline USTs, one 12,000-gallon diesel UST, and one 10,000-gallon kerosene UST.

In July of 2006, free product characteristic of gasoline was discovered in observation
wells adjacent to the UST basin. A 24-Hour Release and UST Leak Reporting Form was
submitted and free product recovery commenced. A Site Check and Phase I LSA were
performed in 2006 and the site was subsequently classified as “intermediate” risk with an
“industrial/commercial” land use classification. Based on this classification, further
assessment and/or remediation work was suspended under Session Law 2004-124 until
2009, when Session Law 2008-195 required free product recovery activities. Free product
recovery continued until the site became “directed” work again with the lowering of the
Trust Fund funding bar. Selected historical site assessment information is provided in
Appendix A.

The funding bar was lowered in 2011, and on January 21, 2011, the NCDENR issued a
NORR requesting completion of a CSA for the site. During the CSA investigation, free
product characteristic of gasoline was observed in two of the site monitoring wells (MW-1
and MW-8), located in the vicinity of the UST basin. A CSA report was submitted to the
UST Section in December of 2011, and the results indicated that the site’s cleanup goals
for soil (industrial/commercial MSCCs) had been met but the cleanup goals for
groundwater (ten times the NCSWQS) had not been met. Based on these results, the
Asheville Regional Office (ARO) has been requiring free product recovery through the use
of MMPE, as well as semi-annual groundwater and surface water sampling. Three MMPE
events (April 2012, September 2012 and March 2013) have been performed at the site
following completion of the CSA.

On January 6, 2014, the ARO issued a NORR (Appendix B) requesting continued free
product gauging, groundwater and surface water sampling, and an as-needed MMPE
event prior to development of a CAP. Free product has not been detected at the site
during the recent gauging events and, therefore, an MMPE event was not warranted at
this time. This work was completed under Pre-Approval Task Authorization (PATA)
28414-10 and the results are documented in this report.

2.0 POTENTIAL RECEPTORS

Please refer to previous reports for the results of our receptor survey that was
conducted for the LSA in 2006, as well as the CSA Report dated December 1, 2011. A
receptor survey update was not conducted during this monitoring event. The site is
currently classified as “intermediate” risk due to the presence of free product on the
water table and the presence of a nearby drainage ditch that contains flowing water.
Pre-CAP Monitoring Report June 5, 2014
WILCOHESS #353 Page 2
Lenoir, North Carolina

3.0 FIELD ACTIVITIES

Drainage Feature Water Sampling

• On May 2, 2014, three surface water samples were collected from the drainage
feature located to the south of the subject site, across Hibriten Drive. The
approximate sample locations (Stream #1, Stream #2, and Stream #3) are
shown on Drawing 1.2.

• The samples were collected using the procedures outlined in Appendix C and
sent to Con-Test Analytical Laboratories, Inc. in East Longmeadow,
Massachusetts for analysis. The samples were analyzed for VOCs using
Standard Method 6200B.

Free Product Gauging

• On May 1, 2014, Mid-Atlantic personnel gauged monitoring wells MW-1, MW-8
and observation wells OW-1 through OW-4 for free product using an electronic
oil/water interface probe. Free product was not detected in the site monitoring
wells during the May 2014 gauging activities. Historical free product gauging
results are summarized in Table 3.1. A summary of historical free product
recovery events is included in Appendix A.

Groundwater Monitoring

• On May 1, 2014, Mid-Atlantic personnel measured depth-to-groundwater in site
monitoring wells using an electronic water level indicator. The results, along with
historical liquid level measurements, are provided in Table 3.2. Liquid level data
was collected using the procedures described in Appendix C.

• Mid-Atlantic personnel collected groundwater samples from the site monitoring
wells using the procedures described in Appendix C. The samples were sent to
Con-Test Analytical Laboratories, Inc. in East Longmeadow, Massachusetts for
analysis. The samples were analyzed for purgeable aromatics (including DIPE,
MTBE, and naphthalene) using EPA Method 602.

4.0 DISCUSSION OF SAMPLING RESULTS

Summary of Surface Water Sampling Results

The laboratory analytical report and chain-of-custody record for surface water samples
collected from the drainage ditch are provided in Appendix D with the results (including
historical concentrations) of selected COCs summarized in Table 4.1. As summarized,
Pre-CAP Monitoring Report June 5, 2014
WILCOHESS #353 Page 3
Lenoir, North Carolina

several petroleum fuel-related constituents were detected in two of the surface samples
(Stream #1 and Stream #2), but at concentrations below their respective NCSWQS and/
or EPA National Water Quality Criteria (NWQC), as identified in NCDENR’s NC and EPA
Criteria Table updated on May 15, 2013. Target compounds were not detected at
concentrations above the laboratory’s reporting limit for the surface water sample
collected from the third stream bed location (Stream #3), which was the initial point at
which surface water was visible in the stream bed. These results suggest that impacted
groundwater may be entering the ditch between the Stream #3 and Stream #1 sampling
locations.

The elevations of the shallow water table for three monitoring wells (MW-2, MW-11, and
MW-12) in the vicinity of the drainage ditch were previously compared to the elevations of
two surveyed points in the drainage ditch. These activities were documented in the
June 2012 “Groundwater Monitoring and Free Product Recovery Report” and the results
of water elevation comparisons since that time are summarized in Table 4.2. As
indicated, it appears the bottom of the ditch is lower in elevation than the water table,
suggesting that groundwater is discharging into the ditch. The drainage ditch is a UT to
Lower Creek, as shown on Drawings 1.1 and 1.2.

Summary of Groundwater Sampling Results

The laboratory analytical report and chain-of-custody record for groundwater samples are
provided in Appendix D with the results (including historical concentrations) of selected
COCs summarized in Table 4.3. As summarized, several COCs were detected in the
samples collected from monitoring wells MW-1 and MW-8 at concentrations exceeding
ten times the NCSWQS and/or EPA NWQC. Groundwater samples collected from the
remaining site monitoring wells did not exhibit COCs at concentrations exceeding the
cleanup goals for the site’s groundwater (ten times the NCSWQS and/or EPA NWQC).

Description of Current Plume Size and Location

• Free Product:

Free product was not detected during the May 2014 gauging and sampling
activities. Free product has not been detected at the site since September
2012. A summary of historical free product thicknesses over time is provided in
Table 3.1.

• Dissolved Phase:

Isoconcentration maps for benzene and toluene are provided as Drawings 4.1
and 4.2, respectively. A summary of historical groundwater quality data for
selected compounds is provided in Table 4.3. When compared with the results
of previous groundwater sampling events conducted at the site following
Pre-CAP Monitoring Report June 5, 2014
WILCOHESS #353 Page 4
Lenoir, North Carolina

completion of the CSA, the overall concentrations of COCs have continued to
decrease, most notably in the samples collected from monitoring wells in the
vicinity of the UST pit.

The groundwater samples collected from wells MW-1 and MW-8 exhibited
several COCs at concentrations exceeding the site’s cleanup goals of ten times
the NCSWQS and/or EPA NWQC for groundwater. None of the samples
collected during this sampling event exhibited COCs at concentrations
exceeding the GCLs. Overall, it appears the size and degree of the dissolved
phase contaminant plume is decreasing over time.

Additional Monitoring Information

• Proximity of Plume to Nearest Receptor:

The drainage feature on the western side of Hibriten Drive is a potential
receptor. Two of the three samples collected from the flowing water in this
ditch exhibited petroleum fuel-related compounds. Based on the relative
elevations of the water table in this area to the elevation of the bottom of the
ditch, it appears that shallow groundwater is discharging into the ditch. Well
MW-11 is hydraulically downgradient of the source area of the release and
immediately upgradient of the ditch, and therefore may provide the best data
for comparison of the groundwater to surface water. With the exception of
DIPE, the groundwater sample collected from this well during this sampling
event did not exhibit concentrations of petroleum fuel-related compounds
(Note: DIPE was detected in this sample at a concentration of 1.3 ug/L, below
its respective NCGQS of 70 ug/L). COC concentrations have fluctuated in this
well over time but appear to be showing an overall decreasing trend. Based
on groundwater analytical results and the relative elevation of the stream bed
to the water table, the contaminants found in the surface water samples
appear to be a result of groundwater discharge.

• Estimated Groundwater Flow Direction:

Based on measurements collected during this sampling event, the
groundwater flow was estimated to be generally towards the south-southwest
with a gradient (MW-6 towards MW-11) of approximately 0.054 ft/ft. This is
consistent with previous flow direction and gradient determinations for the
site. An Estimated Water Table Contour Map (9/5/13) is provided as
Drawing 4.3. Water level measurements and groundwater elevations, as well
as historical measurements, are summarized in Table 3.3. Hydraulic gradient
was calculated using the procedure discussed in Appendix E.

Pre-CAP Monitoring Report June 5, 2014
WILCOHESS #353 Page 5
Lenoir, North Carolina

5.0 SUMMARY, CONCLUSIONS AND RECOMMENDATIONS

The results of this investigation and monitoring event are summarized as follows:

• Free product was not detected at the site during the May 2014 gauging and
sampling activities. Free product has not been detected at the site since
September 2012;

• Groundwater samples collected from site monitoring wells exhibited dissolved-
phase petroleum-fuel related constituents at concentrations above the NCGQS.
Groundwater samples collected from wells MW-1 and MW-8 exhibited several
COCs at concentrations exceeding the site’s cleanup goals of ten times the
NCSWQS and/or EPA NWQC. None of the samples collected during this sampling
event exhibited contaminant concentrations exceeding the GCLs;

• Surface water samples were collected from flowing water in the drainage feature
located to the south of the site, across Hibriten Drive (UT to Lower Creek). Two of
the three samples (Stream #1 and Stream #2) exhibited several petroleum fuel-
related constituents at concentrations below their respective NCSWQS and/or
EPA NWQC. Target compounds were not detected at concentrations above the
laboratory’s reporting limit for the surface water sample collected from the third
stream bed location (Stream #3), which was the initial point at which surface water
was visible in the stream bed; and

• Water level measurements taken from the site indicate that groundwater flow
direction is generally towards the south-southwest, in the direction of the UT to
Lower Creek.

Based on the results of the monitoring event, we conclude the following:

• Historical free product recovery events appear to have removed free product from
the water table. Future gauging events may be required to determine if the free
product has been permanently removed or if it will return;

• The dissolved-phase groundwater contaminant plume appears to be defined within
the existing monitoring well network, and groundwater contaminant concentrations
appear to have generally decreased following performance of the CSA in 2011;
and

• Based on the relative elevation of the stream bed to the water table, the
contaminants detected in the surface water samples appear to be the result of
groundwater discharge.

Pre-CAP Monitoring Report June 5, 2014
WILCOHESS #353 Page 6
Lenoir, North Carolina

Based on these conclusions, Mid-Atlantic recommends the following:

• Continued semi-annual groundwater and surface water (ditch) sampling until a
CAP can be implemented. The next semi-annual monitoring event is currently
scheduled for September 2014;

• Gauging of wells MW-1, MW-8 and OW-1 through OW-4 for free product during
the September 2014 monitoring event;

• Development of a CAP for this site. The ultimate goal of the CAP should be to
reduce the groundwater concentrations to less than the cleanup goal of ten times
the NCSWQS and/or EPA NWQC. If this can be accomplished, the site may be
eligible for closure under Risk-Based Corrective Action rules if the risk can be
downgraded to “low”; and

• Submittal of this report to the NCDENR, Asheville Regional Office, UST Section.

DRAWINGS

TABLES
WELL NUMBER DATE DTP (ft) DTW (ft)FP THICKNESS
(ft)
05/15/09 10.31 13.93 3.62
06/25/10 10.91 12.03 1.12
07/08/10 11.42 11.70 0.28
07/26/10 10.96 12.05 1.09
08/09/10 11.55 11.61 0.06
08/23/10 --11.18 0.00
09/08/10 --11.54 0.00
10/12/10 10.55 10.57 0.02
10/26/10 --11.65 0.00
11/09/10 --11.66 0.00
11/23/10 11.63 11.65 0.02
12/07/10 --11.31 0.00
12/22/10 --11.45 0.00
01/12/11 --11.68 0.00
01/20/11 --11.70 0.00
02/09/11 --9.35 0.00
02/25/11 --11.25 0.00
06/02/11 --11.01 0.00
08/29/11 11.54 12.10 0.56
04/09/12 10.71 11.10 0.39
04/27/12 --10.74 0.00
08/16/12 --11.34 0.00
09/10/12 --11.60 0.00
10/15/12 --11.35 0.00
03/18/13 --10.89 0.00
04/08/13 --10.75 0.00
09/05/13 --10.79 0.00
05/01/14
0
06/02/11 --10.92 0.00
08/29/11 11.74 12.00 0.26
04/09/12 11.09 11.11 0.02
04/27/12 --11.14 0.00
08/16/12 11.51 11.55 0.04
09/10/12 11.83 11.89 0.06
10/15/12 --11.55 0.00
03/18/13 --11.23 0.00
04/08/13 --11.35 0.00
09/05/13 --11.26 0.00
05/01/14
0
05/15/09 --9.28 0.00
06/25/10 --9.19 0.00
07/08/10 --9.33 0.00
07/26/10 --9.36 0.00
08/09/10 --9.98 0.00
08/23/10 --9.25 0.00
09/08/10 --9.46 0.00
10/12/10 --9.58 0.00
10/26/10 --9.60 0.00
11/09/10 --9.54 0.00
11/23/10 9.56 9.58 0.02
12/07/10 --9.30 0.00
12/22/10 --9.47 0.00
01/12/11 --9.46 0.00
01/20/11 --9.50 0.00
TABLE 3.1
SUMMARY OF HISTORICAL FREE PRODUCT GAUGING EVENTS
WILCOHESS #353
LENOIR, NORTH CAROLINA
OW-1
MID-ATLANTIC JOB NO. 000R1760.11
MW-1
MW-8
Page 1 of 3
WELL NUMBER DATE DTP (ft) DTW (ft)FP THICKNESS
(ft)
TABLE 3.1
SUMMARY OF HISTORICAL FREE PRODUCT GAUGING EVENTS
WILCOHESS #353
LENOIR, NORTH CAROLINA
MID-ATLANTIC JOB NO. 000R1760.11
02/09/11 --9.34 0.00
02/25/11 --9.37 0.00
04/09/12 --8.99 0.00
08/16/12 --9.44 0.00
09/10/12 --9.54 0.00
10/15/12 --9.25 0.00
03/18/13 --8.71 0.00
04/08/13 --8.82 0.00
09/05/13 --8.72 0.00
05/01/14 8.61 0.00
0
05/15/09 --10.46 0.00
06/25/10 --10.35 0.00
07/08/10 --10.49 0.00
07/26/10 --10.35 0.00
08/09/10 --10.41 0.00
08/23/10 --10.41 0.00
09/08/10 --10.64 0.00
10/12/10 --10.75 0.00
10/26/10 --10.77 0.00
11/09/10 --10.70 0.00
11/23/10 --10.73 0.00
12/07/10 --10.43 0.00
12/22/10 --10.64 0.00
01/12/11 --10.65 0.00
01/20/11 --10.67 0.00
02/09/11 --10.57 0.00
02/25/11 --10.58 0.00
04/09/12 --10.14 0.00
08/16/12 --10.62 0.00
09/10/12 --10.71 0.00
10/15/12 --10.42 0.00
03/18/13 --9.93 0.00
04/08/13 --9.96 0.00
09/05/13 --9.91 0.00
05/01/14 9.78 0.00
0
05/15/09 --10.41 0.00
06/25/10 --10.30 0.00
07/08/10 --10.44 0.00
07/26/10 --10.55 0.00
08/09/10 --10.31 0.00
08/23/10 --10.35 0.00
09/08/10 --10.59 0.00
10/12/10 --10.71 0.00
10/26/10 --10.73 0.00
11/09/10 --10.64 0.00
11/23/10 --10.67 0.00
12/07/10 --10.45 0.00
12/22/10 --9.58 0.00
01/12/11 --10.58 0.00
01/20/11 --10.63 0.00
02/09/11 --10.46 0.00
02/25/11 --10.48 0.00
04/09/12 --10.11 0.00
08/16/12 --10.56 0.00
OW-1
OW-2
OW-3
Page 2 of 3
WELL NUMBER DATE DTP (ft) DTW (ft)FP THICKNESS
(ft)
TABLE 3.1
SUMMARY OF HISTORICAL FREE PRODUCT GAUGING EVENTS
WILCOHESS #353
LENOIR, NORTH CAROLINA
MID-ATLANTIC JOB NO. 000R1760.11
09/10/12 --10.67 0.00
10/15/12 --10.39 0.00
03/18/13 --9.87 0.00
04/08/13 --9.92 0.00
09/05/13 9.84 0.00
05/01/14 9.73 0.00
0
05/15/09 --9.32 0.00
06/25/10 --9.20 0.00
07/08/10 --9.38 0.00
07/26/10 --10.44 0.00
08/09/10 --9.23 0.00
08/23/10 --9.30 0.00
09/08/10 --9.51 0.00
10/12/10 --9.60 0.00
10/26/10 9.60 9.62 0.02
11/09/10 --9.60 0.00
11/23/10 --9.58 0.00
12/07/10 --9.35 0.00
12/22/10 --9.47 0.00
01/12/11 --9.50 0.00
01/20/11 --9.55 0.00
02/09/11 --9.39 0.00
02/25/11 --9.41 0.00
04/09/12 --9.02 0.00
08/16/12 --9.49 0.00
09/10/12 --9.59 0.00
10/15/12 --10.25 0.00
03/18/13 --8.80 0.00
04/08/13 --8.80 0.00
09/05/13 --8.78 0.00
05/01/14 8.66 0.00
Notes:
All elevations relative to site benchmark (SW corner of building) - Assumed datum 100.00 feet
Measuring point is top of well (TOC) casing unless otherwise noted.
DTP - Depth-to-Free Product in feet
DTW - Depth-to-Water in feet
SWLE - Static Water Elevation in feet
NS - Well not surveyed, data not available
-- No product detected in well
OW-4
OW-3
Page 3 of 3
WELL NUMBER DATE TOC (ft)DTP (ft)APPARENT FP
THICKNESS (ft)DTW (ft), BTOC CORRECTED
DTW (ft)SWLE (ft)
09/21/06 102.18 ----11.05 --91.13
06/02/11 102.18 ----11.01 --91.17
08/29/11 102.18 11.54 0.56 12.10 11.69 90.49
04/27/12 102.18 ----10.74 --91.44
08/16/12 102.18 ----11.34 --90.84
02/13/13 102.18 ----10.81 --91.37
09/05/13 102.18 ----10.79 --91.39
05/01/14 102.18 ----10.46 --91.72
06/02/11 98.52 ----7.90 --90.62
08/29/11 98.52 ----8.45 --90.07
04/27/12 98.52 ----7.27 --91.25
08/16/12 98.52 ----8.39 --90.13
02/13/13 98.52 ----8.09 --90.43
09/05/13 98.52 ----8.32 --90.20
05/01/14 98.52 ----8.14 --90.38
06/02/11 102.71 ----12.87 --89.84
08/29/11 102.71 ----13.50 --89.21
04/27/12 102.71 ----12.23 --90.48
08/16/12 102.71 ----12.30 --90.41
02/13/13 102.71 ----12.09 --90.62
09/05/13 102.71 ----12.91 --89.80
05/01/14 102.71 ----12.28 --90.43
06/02/11 103.37 ----11.76 --91.61
08/29/11 103.37 ----12.47 --90.90
04/27/12 103.37 ----11.41 --91.96
08/16/12 103.37 ----12.28 --91.09
02/13/13 103.37 ----11.37 --92.00
09/05/13 103.37 ----11.60 --91.77
05/01/14 103.37 ----11.22 --92.15
06/02/11 103.23 ----10.23 --93.00
08/29/11 103.23 ----10.80 --92.43
04/27/12 103.23 ----10.14 --93.09
08/16/12 103.23 ----10.69 --92.54
02/13/13 103.23 ----10.12 --93.11
09/05/13 103.23 ----10.09 --93.14
05/01/14 103.23 ----10.01 --93.22
06/02/11 103.85 ----10.74 --93.11
08/29/11 103.85 ----11.34 --92.51
04/27/12 103.85 ----10.69 --93.16
08/16/12 103.85 ----11.19 --92.66
02/13/13 103.85 ----10.66 --93.19
09/05/13 103.85 ----10.59 --93.26
05/01/14 103.85 ----10.48 --93.37
06/02/11 101.70 ----9.24 --92.46
08/29/11 101.70 ----9.64 --92.06
04/27/12 101.70 ----9.18 --92.52
08/16/12 101.70 ----9.46 --92.24
02/13/13 101.70 ----9.13 --92.57
09/05/13 101.70 ----9.02 --92.68
05/01/14 101.70 ----8.98 --92.72
06/02/11 102.29 ----10.92 --91.37
08/29/11 102.29 11.74 0.26 12.00 11.81 90.48
04/27/12 102.29 ----11.14 --91.15
08/16/12 102.29 11.51 0.04 11.55 11.52 90.74
02/13/13 102.29 ----11.10 --91.19
09/05/13 102.29 ----11.26 --91.03
05/01/14 102.29 ----10.09 --92.20
06/02/11 102.64 ----78.29 --24.35
08/29/11 102.64 ----14.40 --88.24
04/27/12 102.64 ----10.75 --91.89
08/16/12 102.64 ----11.03 --91.61
02/14/13 102.64 ----10.32 --92.32
09/05/13 102.64 ----9.96 --92.68
05/01/14 102.64 ----10.26 --92.38
Well did not exist
Well did not exist
MW-9D
MW-8
MW-2
Well did not exist
DWM INCIDENT NO.: 28414
Well did not exist
Well did not exist
Well did not exist
Well did not exist
Well did not exist
TABLE 3.2
HISTORICAL LIQUID LEVEL MEASUREMENTS
WILCOHESS #353
LENOIR, NORTH CAROLINA
MID-ATLANTIC JOB NO. 000R1760.11
MW-1
MW-7
MW-6
MW-5
MW-4
MW-3
Page 1 of 2
WELL NUMBER DATE TOC (ft)DTP (ft)APPARENT FP
THICKNESS (ft)DTW (ft), BTOC CORRECTED
DTW (ft)SWLE (ft)
DWM INCIDENT NO.: 28414
TABLE 3.2
HISTORICAL LIQUID LEVEL MEASUREMENTS
WILCOHESS #353
LENOIR, NORTH CAROLINA
MID-ATLANTIC JOB NO. 000R1760.11
08/29/11 98.02 ----15.53 --82.49
04/27/12 98.02 ----13.25 --84.77
08/16/12 98.02 ----13.77 --84.25
02/13/13 98.02 ----13.38 --84.64
09/05/13 98.02 ----13.90 --84.12
05/01/14 98.02 ----13.11 --84.91
08/29/11 93.21 ----9.84 --83.37
04/27/12 93.21 ----9.29 --83.92
08/16/12 93.21 ----9.52 --83.69
02/13/13 93.21 ----9.39 --83.82
09/05/13 93.21 ----9.62 --83.59
05/01/14 93.21 ----9.42 --83.79
08/29/11 94.31 ----10.17 --84.14
04/27/12 94.31 ----9.74 --84.57
08/16/12 94.31 ----10.12 --84.19
02/13/13 94.31 ----9.88 --84.43
09/05/13 94.31 ----10.14 --84.17
05/01/14 94.31 ----9.94 --84.37
08/29/11 95.18 ----9.88 --85.30
04/27/12 95.18 ----10.02 --85.16
08/16/12 95.18 ----10.08 --85.10
02/14/13 95.18 ----10.04 --85.14
09/05/13 95.18 ----10.68 --84.50
05/01/14 95.18 ----10.58 --84.60
08/29/11 95.92 ----8.90 --87.02
04/27/12 95.92 ----8.46 --87.46
08/16/12 95.92 ----8.83 --87.09
02/14/13 95.92 ----8.29 --87.63
09/05/13 95.92 ----8.38 --87.54
05/01/14 95.92 ----8.18 --87.74
Notes:
Shaded cells indicate that the water level has been corrected for the presence of free product (see next page)
BTOC - Below Top of Casing (TOC)
DTP - Depth to Free Product (in feet)
DTW - Depth to Water (in feet)
SWLE - Static Water Elevation (in feet)
Well did not exist
Well did not exist
MW-13
Well did not exist
MW-12
Well did not exist
Well did not exist
MW-14
MW-10
MW-11
Page 2 of 2
51 97 11 450 NE 1,500 12 1,400 NE NE 25
04/13/12 13.5 4.99 15.6 15.86 ND ND 1.38 ND ND ND NA
08/16/12 10.5 2.06 2.44 7.46 ND 1.24 0.870 NA NA NA NA
02/14/13 15 5.2 16 6.5 ND 1.4 1.500 NA NA NA NA
09/05/13 0.71 2.3 1.1 7.2 ND ND 0.79J NA NA NA NA
05/02/14 6.6 5.0 10 16 ND ND ND NA NA NA NA
04/13/12 7.23 3.05 7.83 10.9 ND ND 0.970 ND ND ND NA
08/16/12 5.67 1.15 1.28 4.13 0.190J 1.55 0.530 NA NA NA NA
02/14/13 7.6 3.4 9.8 5.2 ND 1.2 0.99J NA NA NA NA
09/05/13 ND 1.1 0.53 3.4 ND ND ND NA NA NA NA
05/02/14 2.2 1.9 3.5 6.6 ND ND ND NA NA NA NA
04/13/12 NS NS NS NS NS NS NS NS NS NS NS
08/16/12 ND ND ND ND ND ND ND NA NA NA NA
02/14/13 ND ND ND ND ND ND ND NA NA NA NA
09/05/13 ND ND ND ND ND ND ND NA NA NA NA
05/02/14 ND 0.15 J ND ND ND ND ND NA NA NA NA
NA - Not analyzed for this parameter DIPE - diisopropyl ether
NE - Standard not established * C9-C12 Aliphatics (VPH) only. See laboratory report.
NS - Not sampled ** C9-C10 Aromatics (VPH) only. See laboratory report.
All concentrations reported in ug/L - micrograms per liter
Bold values exceed NC Surface Water Quality Standards (NCSWQS)
Note: This table summarizes results for selected compounds. Additional compounds may have been detected. Refer to laboratory reports for additional information
MID-ATLANTIC PROJECT NO. 000R1760.11
2B NCSWQS
Diisopropyl
ether (DIPE)MTBE
TABLE 4.1
SUMMARY OF SURFACE WATER SAMPLING RESULTS FOR SELECTED COMPOUNDS
WILCOHESS #353
LENOIR, NORTH CAROLINA
Total Xylenes C9-C12
Aliphatics
Sample
Location Sample Date Benzene Naphthalene
STREAM #2
STREAM #1
C9-C10
Aromatics
Lead
Not sampled on prior dates
Not sampled on prior dates
Not sampled on prior dates
Ethylbenzene Toluene C5-C8
Aliphatics
STREAM #3
LOCATION DATE TOC (ft) DTW (ft), BTOC SWLE (ft)
ELEVATION OF
DITCH BOTTOM
(ft)
ELEVATION
DIFFERENCE* (ft)
06/02/11 98.52 7.90 90.62 ---8.25
08/29/11 98.52 8.45 90.07 ---7.70
04/27/12 98.52 7.27 91.25 ---8.88
08/16/12 98.52 8.39 90.13 ---7.76
02/13/13 98.52 8.09 90.43 ---8.06
09/05/13 98.52 8.32 90.20 ---7.83
05/01/14 98.52 8.14 90.38 ---8.01
08/29/11 93.21 9.84 83.37 ---1.00
04/27/12 93.21 9.29 83.92 ---1.55
08/16/12 93.21 9.52 83.69 ---1.32
02/13/13 93.21 9.39 83.82 ---1.45
09/05/13 93.21 9.62 83.59 ---1.22
05/01/14 93.21 9.42 83.79 ---1.42
08/29/11 94.31 10.17 84.14 ---1.77
04/27/12 94.31 9.74 84.57 ---2.20
08/16/12 94.31 10.12 84.19 ---1.82
02/13/13 94.31 9.88 84.43 ---2.06
09/05/13 94.31 10.14 84.17 ---1.80
05/01/14 94.31 9.94 84.37 ---2.00
STREAM #1 04/13/12 82.37
75 ft. south of STREAM #1 04/13/12 81.72
Notes:
BTOC - Below Top of Casing (TOC)
DTW - Depth to Water (in feet)
SWLE - Static Water Table Elevation (in feet)
*Elevation difference between the SWLE and the elevation of the drainage ditch bottom at STREAM #1 location
MW-12
MID-ATLANTIC JOB NO. 000R1760.11
TABLE 4.2
ELEVATION COMPARISON OF THE WATER TABLE TO DRAINAGE DITCH
WILCOHESS #353
LENOIR, NORTH CAROLINA
MW-2
MW-11
5,000 84,500 260,000 85,500 70,000 20,000 6,000 NE NE NE 15,000
510 970 110 4,500 NE 15,000 120 14,000 NE NE 250
1 600 600 500 70 20 6 400 700 200 15
09/21/06 10,100 910 12,800 4,860 NA 2,070 NA 35,000 8,700 2,000 NA
06/02/11 1,540 2,480 9,710 11,610 ND NDa 676 26,000 33,300 11,800 0.8J
08/29/11 FP FP FP FP FP FP FP FP FP FP FP
04/27/12 794 1,900 7,300 10,700 ND NDa NA NA NA NA NA
08/16/12 536 1,510 2,580 5,550 133 NDa NA NA NA NA NA
02/13/13 400 2,400 2,700 9,600 ND 74J 650 NA NA NA NA
09/05/13 110 1,100 750 4,100 ND ND 480J NA NA NA NA
05/02/14 110 1,100 590 3,700 ND ND NA NA NA NA NA
06/02/11 3,200 1,150 6,080 3,960 ND NDa 240 17,200 12,400 NDa 0.7J
08/29/11 1,450 822 820 1,006 74J 125J NA NA NA NA NA
04/27/12 1,400 1,730 1,340 3,322 ND NDa NA NA NA NA NA
08/16/12 131 141 ND ND ND 22.8 NA NA NA NA NA
02/13/13 78 37 3.0 2.2J 0.46J 14 12 NA NA NA NA
09/05/13 3.9 1.0 ND ND ND 4.5J ND NA NA NA NA
05/02/14 2.0 4.9 ND ND ND 12 NA NA NA NA NA
06/02/11 50.9 25.9 103 122.5 ND ND 8.34 154 ND 191 1.3J
08/29/11 155 68.6 129 376.2 23.4 ND NA NA NA NA NA
04/27/12 ND ND ND ND ND ND NA NA NA NA NA
08/16/12 2.56 ND 0.840J 3.92J ND ND NA NA NA NA NA
02/13/13 ND ND ND ND ND ND ND NA NA NA NA
09/05/13 1.1 1.2 1.8 2.5J ND ND ND NA NA NA NA
05/01/14 ND ND ND ND ND ND NA NA NA NA NA
06/02/11 ND ND ND ND 0.41 6.95 ND ND ND ND 0.8J
08/29/11 ND ND ND ND ND 3.11 NA NA NA NA NA
04/27/12 ND ND ND ND ND 1.56J NA NA NA NA NA
08/16/12 ND ND ND ND ND 2.54 NA NA NA NA NA
02/13/13 ND ND ND ND ND 1.1J ND NA NA NA NA
09/05/13 ND ND ND ND ND 3.6J ND NA NA NA NA
05/01/14 ND ND ND ND ND 1.5*NA NA NA NA NA
06/02/11 ND ND ND ND ND 1.62 ND ND ND ND 0.7J
08/29/11 ND ND ND ND ND 1.48J NA NA NA NA NA
04/27/12 ND ND ND ND ND ND NA NA NA NA NA
08/16/12 ND ND ND ND ND ND NA NA NA NA NA
02/13/13 ND ND ND ND ND 0.77J ND NA NA NA NA
09/05/13 ND ND ND ND ND 0.76J ND NA NA NA NA
05/02/14 ND ND ND ND ND ND NA NA NA NA NA
06/02/11 ND ND ND ND ND 3.76 ND ND ND ND 1.2J
08/29/11 ND ND ND ND ND 2.58 NA NA NA NA NA
04/27/12 ND ND ND ND ND 2.00 NA NA NA NA NA
08/16/12 ND ND ND ND ND 2.68 NA NA NA NA NA
02/13/13 ND ND ND ND ND 3.2J ND NA NA NA NA
09/05/13 ND ND ND ND ND 3.3J ND NA NA NA NA
05/01/14 ND ND ND ND 0.49 J 6.1*NA NA NA NA NA
TABLE 4.3
SUMMARY OF HISTORICAL GROUNDWATER MONITORING RESULTS FOR SELECTED COMPOUNDS
WILCOHESS #353
LENOIR, NORTH CAROLINA
MID-ATLANTIC PROJECT NO. 000R1760.11
GCL
10X SWQS or NWQC
Toluene Total
XylenesWell Number Sample Date
NCGQS
C9-C12
Aliphatics
C9-C10
Aromatics
Lead Diisopropyl
ether (DIPE)MTBE Naphthalene C5-C8
AliphaticsBenzene Ethylbenzene
MW-1
MW-2
MW-3
MW-4
MW-5
MW-6
Page 1 of 3
5,000 84,500 260,000 85,500 70,000 20,000 6,000 NE NE NE 15,000
510 970 110 4,500 NE 15,000 120 14,000 NE NE 250
1 600 600 500 70 20 6 400 700 200 15
TABLE 4.3
SUMMARY OF HISTORICAL GROUNDWATER MONITORING RESULTS FOR SELECTED COMPOUNDS
WILCOHESS #353
LENOIR, NORTH CAROLINA
MID-ATLANTIC PROJECT NO. 000R1760.11
GCL
10X SWQS or NWQC
Toluene Total
XylenesWell Number Sample Date
NCGQS
C9-C12
Aliphatics
C9-C10
Aromatics
Lead Diisopropyl
ether (DIPE)MTBE Naphthalene C5-C8
AliphaticsBenzene Ethylbenzene
06/02/11 ND ND ND ND ND 0.9 ND ND ND ND 24.1
08/29/11 ND ND ND ND ND ND NA NA NA NA NA
04/27/12 ND ND ND ND ND ND NA NA NA NA NA
08/16/12 ND ND ND ND ND ND NA NA NA NA NA
02/13/13 ND ND ND ND ND 0.81J ND NA NA NA NA
09/05/13 ND ND ND ND ND 0.55J ND NA NA NA NA
05/01/14 ND ND ND ND ND ND NA NA NA NA NA
06/02/11 2,300 1,600 12,500 11,220 NDa NDa 600 22,600 27,900 NDa 1.1J
08/29/11 FP FP FP FP FP FP FP FP FP FP FP
04/27/12 805 1,340 5,280 10,240 ND NDa NA NA NA NA NA
08/16/12 FP FP FP FP FP FP FP FP FP FP FP
02/13/13 700 1,800 3,500 12,000 ND ND 880 NA NA NA NA
09/05/13 730 1,300 6,900 11,000 ND ND 900 NA NA NA NA
05/02/14 480 1,100 3,800 8,800 ND ND NA NA NA NA NA
06/02/11 ND ND 0.64 ND ND ND ND ND ND ND 7.6
08/29/11 ND ND ND ND ND ND NA NA NA NA NA
04/27/12 ND ND ND ND ND ND NA NA NA NA NA
08/16/12 ND ND ND ND ND ND NA NA NA NA NA
02/14/13 ND ND ND ND ND ND ND NA NA NA NA
09/05/13 ND ND ND ND ND ND ND NA NA NA NA
05/02/14 ND ND ND ND ND ND NA NA NA NA NA
08/30/11 ND ND ND ND ND ND ND ND ND ND 17.2
04/27/12 ND ND ND ND ND ND NA NA NA NA NA
08/16/12 ND ND ND ND ND ND NA NA NA NA NA
02/13/13 ND ND ND ND ND ND ND NA NA NA NA
09/05/13 ND ND ND ND ND ND ND NA NA NA NA
05/02/14 ND ND ND ND ND ND NA NA NA NA NA
08/30/11 303 ND ND ND ND 335 ND 853 ND ND 4.0J
04/27/12 ND ND ND ND 6.27 17.2 NA NA NA NA NA
08/16/12 71.7 ND ND ND 7.70 75.6 NA NA NA NA NA
02/13/13 ND ND ND ND 10 8.9 ND NA NA NA NA
09/05/13 ND ND ND ND ND ND ND NA NA NA NA
05/02/14 ND ND ND ND 1.3 ND NA NA NA NA NA
08/30/11 ND ND ND ND ND ND ND ND ND ND 0.9J
04/27/12 ND ND ND ND ND ND NA NA NA NA NA
08/16/12 ND ND ND ND ND ND NA NA NA NA NA
02/13/13 ND ND ND ND ND ND ND NA NA NA NA
09/05/13 ND ND ND ND ND ND ND NA NA NA NA
05/02/14 ND ND ND ND ND ND NA NA NA NA NA
MW-7
MW-8
Well did not exist
Well did not exist
MW-12
MW-11
MW-10
MW-9d
Well did not exist
Page 2 of 3
5,000 84,500 260,000 85,500 70,000 20,000 6,000 NE NE NE 15,000
510 970 110 4,500 NE 15,000 120 14,000 NE NE 250
1 600 600 500 70 20 6 400 700 200 15
TABLE 4.3
SUMMARY OF HISTORICAL GROUNDWATER MONITORING RESULTS FOR SELECTED COMPOUNDS
WILCOHESS #353
LENOIR, NORTH CAROLINA
MID-ATLANTIC PROJECT NO. 000R1760.11
GCL
10X SWQS or NWQC
Toluene Total
XylenesWell Number Sample Date
NCGQS
C9-C12
Aliphatics
C9-C10
Aromatics
Lead Diisopropyl
ether (DIPE)MTBE Naphthalene C5-C8
AliphaticsBenzene Ethylbenzene
08/30/11 ND ND ND ND ND ND ND ND ND ND 8.5
04/27/12 ND ND ND ND ND ND NA NA NA NA NA
08/16/12 ND ND ND ND ND ND NA NA NA NA NA
02/14/13 ND ND ND ND ND ND ND NA NA NA NA
09/05/13 ND ND ND ND ND ND ND NA NA NA NA
05/02/14 ND ND ND ND ND ND NA NA NA NA NA
08/30/11 ND ND ND ND ND ND ND ND ND ND 9.1
04/27/12 ND ND ND ND ND ND NA NA NA NA NA
08/16/12 ND ND ND ND ND ND NA NA NA NA NA
02/14/13 ND ND ND ND ND ND ND NA NA NA NA
09/05/13 ND ND ND ND ND ND ND NA NA NA NA
05/02/14 ND ND ND ND ND ND NA NA NA NA NA
Notes:
ND - Not detected at or above laboratory's practical quantitation limit MTBE - Methyl tertiary-butyl ether
NDa - detection limit exceeds NCGQS DIPE - diisopropyl ether
NA - Not Analyzed for this parameter GCL - Gross Contamination Level
NE - Standard not established NCGQS - North Carolina Groundwater Quality Standard
NCSWQS - North Carolina Surface Water Quality Standards EPA NWQC - EPA National Water Quality Criteria
Bold values exceed NCGQS * C9-C12 Aliphatics (VPH) only. See laboratory report.
Shaded values exceed 10X 2B NCSWQS, 10X EPA NWQC and/or GCL ** C9-C10 Aromatics (VPH) only. See laboratory report.
J- Estimated Value All concentrations reported in ug/L - micrograms per liter
NCSWQS
Note: the following NCGQS changes effective 1/13/10: Ethylbenzene 550 ug/L to 600 ug/L, Toluene 1000 ug/L to 600 ug/L, Total Xylenes 550 ug/L to 500 ug/L,
MTBE 200 ug/L to 20 ug/L, naphthalene 21 ug/L to 6 ug/L
Note: the following NCSWQS and/or EPA NWQC changes effective 5/5/13: Ethylbenzene NE to 97 ug/L, Total Xylenes NE to 450 ug/L, MTBE NE to 1,500 ug/L, Napththalene NE to 12 ug/L,
C5-C8 Aliphatics NE to 1,400 ug/L
Note: This table summarizes historical results for selected compounds. Additional compounds may have been detected. Refer to laboratory reports for additional information
Well did not exist
MW-14
MW-13
Well did not exist
Page 3 of 3

APPENDIX A

SELECTED HISTORICAL ASSESSMENT INFORMATION
WELL LOCATIONS RECOVERY
METHOD DATE
MAXIMUM FREE
PRODUCT
THICKNESS (FT)
LIQUID FREE
PRODUCT REMOVED
(GALS.)
OFF-GAS
EMISSIONS
(GALS.)
WATER
REMOVED
(GALS.)
OW-1 through OW-4,
sewer manholes AFVR 7/7/06 1.5 ft in OW-1 735 Unknown 5,265
OW-2 through OW-4 AFVR 7/12/06 0.20 ft in OW-2 30 49.93 1,460
MW-1 Bailer 5/15/09 3.62 ft in MW-1 4.0 N/A 0.5
MW-1 Bailer 6/25/10 1.12 ft in MW-1 0.75 N/A --
MW-1 Bailer 7/8/10 0.28 ft in MW-1 0.25 N/A 0.75
MW-1 Bailer 7/26/10 1.09 ft in MW-1 0.6 N/A --
MW-1 Bailer 8/9/10 0.06 ft in MW-1 0.03 N/A --
MW-1 Bailer/absorbent
socks Oct-Dec 2010 0.02 ft in MW-1, OW-1,
and OW-4 0.21 N/A --
MW-1 Bailer/absorbent
socks Jan-Feb 2011 No measurable product
detected 0.10 N/A --
MW-1, MW-8 MMPE April 9-13, 2012 0.39 in MW-1 5.0 13.92 3,225
MW-8 MMPE Sept 10-14, 2012 0.06 in MW-8 0.0 6.16 2,822
MW-1, MW-8 MMPE March 18-22, 2013 No measurable product
detected*0.0 0.99 3,652
775.94 71 16,425
Notes:
7/07/06 data reported by STAT (emergency response contractor for the Lenoir Fire Department)
*Free product globules observed in purge water from well MW-8
APPENDIX A
SUMMARY OF HISTORICAL FREE PRODUCT RECOVERY EVENTS
WILCOHESS #353
LENOIR, NORTH CAROLINA
MID-ATLANTIC JOB NO. 000R1760.11
TOTALS

APPENDIX B

NOTICE OF REGULATORY REQUIREMENTS DATED
JANUARY 6, 2014

APPENDIX C

MID-ATLANTIC FIELD PROCEDURES

APPENDIX D

LABORATORY ANALYTICAL REPORT AND CHAIN-OF-CUSTODY
RECORD FOR SURFACE AND GROUNDWATER SAMPLES

APPENDIX E

HYDRAULIC GRADIENT CALCULATION