WS-3891_12913_CA_RMR_20161226

P.O. Box 16265 • Greensboro, NC 27416 503 Industrial Ave • Greensboro, NC 27406 Phone [phone] • Fax [phone] • Toll Free [phone] Email: [e-mail] www.pyramidenvironmental.com
December 26, 2016
Mr. Michael Rogers NC Department of Environmental Quality Winston-Salem Regional Office 450 W. Hanes Mill Road, Suite 300 Winston-Salem, NC 27105

RE: 3rd Quarter 2016 Active Remediation Monitoring Report
Harold Smith Grocery, Burlington, North Carolina
NCDEQ Incident # 12913
Pyramid Project #2016-261 Mr. Rogers: Pyramid Environmental & Engineering, P.C. has completed the Active Remediation Monitoring
Report for the above referenced site. This report was written to summarize the sampling events and system maintenance for the 4th quarter of 2016. Please review the enclosed monitoring report. If you have any questions concerning this report, please call me at [phone].
Sincerely,

Brett S. Higgins Project Manager Copy: Mr. Tom Berry, T.A.C., Inc.
TABLE OF CONTENTS
1.0 INTRODUCTION .............................................................................. 1
1.1 SITE INFORMATION .................................................................................................. 1 1.2 ADJOINING PROPERTIES AND POTENTIAL RECEPTORS ............................................. 1 1.3 SITE HYDROLOGY & GEOLOGY ............................................................................... 2 1.4 PREVIOUS REPORTS ................................................................................................. 2
2.0 GROUNDWATER SAMPLING....................................................... 2
2.1 MONITORING WELL SAMPLING ................................................................................ 2
2.2 POTABLE WATER SUPPLY WELL SAMPLING ............................................................ 3
3.0 TREATMENT SYSTEM OPERATIONAL STATUS ................... 3
3.1 SYSTEM OPERATIONS .............................................................................................. 3 3.2 CONTAMINATED SOIL REMOVAL ............................................................................. 5 3.3 SYSTEM UPDATE ...................................................................................................... 5
4.0 SOIL & GROUNDWATER ASSESSMENT ................................... 6
4.1 GROUNDWATER ANALYTICAL RESULTS .................................................................. 6 4.2 SUPPLY WELL ANALYTICAL RESULTS ..................................................................... 7
5.0 CONCLUSIONS & RECOMMENDATIONS ................................ 8
6.0 CLOSURE ........................................................................................... 9

Page I
TABLE OF CONTENTS (Continued)

FIGURES: 1. Topographic Map
2. Site Map 3a. Adjoining Properties and Water Supply Wells 3b. Adjoining Properties and Water Supply Wells 4. Potentiometric Surface Map (11/28/16) 5. MTBE Isoconcentration Map (11/28/16)
6. 1,2-Dichloroethane Isoconcentration Map (11/28/16) 7. Remediation System Layout Map (1/16/12)
TABLES:
1. Monitoring Well Construction Details 2. Groundwater Elevation Data 3. Monitoring Well Analytical Results 4. Water Supply Well Analytical Results 5. System Operation Parameters

APPENDICES: A. Standard Field Procedures B. Groundwater Laboratory Report & Chain of Custody
C. Supply Well Results Letters D. Recent O&M Activities

Page II
ACRONYMS

BLS ................Below Land Surface
BTEX ............Benzene, Toluene, Ethylbenzene, & Xylenes
CFR ................Code of Federal Regulations
COC ...............Chain of Custody
CSA ................Comprehensive Site Assessment
DEQ ...............Department of Environmental Quality
EPH ................Extractable Petroleum Hydrocarbons
GCLs ..............Gross Contaminant Levels
HASP .............Health & Safety Plan
MADEP..........Massachusetts Department of Environmental Protection
MSCC ............Maximum Soil Contaminant Concentration
MTBE ............Methyl Tertiary Butyl Ether
µg/L ................Micrograms per Liter
mg/kg .............Milligrams per kilogram
MW ................Monitoring Well
NCAC ............North Carolina Administrative Code
O&M ..............Operations and Maintenance
OSHA .............Occupational Safety and Health Administration
OVA ...............Organic Vapor Analyzer
PPM................Parts Per Million
PID .................Photo-ionization Detector
P&ID ..............Process & Instrumentation Diagram
PVC ................Poly-vinyl Chloride
QA/QC ...........Quality Assurance / Quality Control
SCFM .............Standard Cubic Feet per Minute
SVE ................Soil Vapor Extraction
SW..................Water Supply Well
UST ................Underground Storage Tank
US EPA ..........United States Environmental Protection Agency
VPH Volatile Petroleum Hydrocarbons

Page III

Active Remediation Monitoring Report - Harold Smith Grocery, Burlington, NC 1
Pyramid Project # 2016-261 12/26/2016
ACTIVE REMEDIATION MONITORING REPORT
Harold Smith Grocery
Burlington, North Carolina

1.0 INTRODUCTION
1.1 Site Information SITE NAME: Harold Smith Grocery ADDRESS: 2774 Union Ridge Road CITY: Burlington, NC COUNTY: Alamance
CURRENT PROPERTY OWNER: Jessica Alton CURRENT PROPERTY USE: Inactive Store (used as storage) OWNER OF USTs: T.A.C., Inc. (All USTs were removed in 1994) RESPONSIBLE PARTY: T.A.C., Inc. NCDEQ UST FACILITY ID: 0-024148
GROUNDWATER INCIDENT NO.: 12913 SITE RANKING: H755E

UNDERGROUND STORAGE TANKS (USTs)

UST-ID
SIZE (gallons)

CONTENTS

STATUS

DATE
1 550 Kerosene Removed 8/01/94
2 550 Gasoline Removed 8/01/94
3 550 Gasoline Removed 8/01/94
4 1,000 Gasoline Removed 8/01/94
FIGURES: Figure 1: Topographic Map
Figure 2: Site Map
Figure 3a: Adjoining Properties and Water Supply Wells
Figure 3b: Adjoining Properties and Water Supply Wells

1.2 Adjoining Properties and Potential Receptors ADJOINING PROPERTY USE: Residential/Agricultural PUBLIC WATER AVAILABILITY: Unavailable SUPPLY WELLS (SW) WITHIN 1000 FEET: Yes (see Figure 3a/b)
SW IMPACTED ABOVE NCAC 2L STANDARDS: Yes, SW-2765 Union Ridge Rd. (POE System) Yes, SW-2773 Union Ridge Rd. (Bottled Water) NEAREST SURFACE WATER: Intermittent Creek – 500-600’ SE BASEMENTS: None
SUBSURFACE UTILITIES: None near source area
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1.3 Site Hydrology & Geology GEOLOGIC PROVINCE: Carolina Slate Belt
BEDROCK TYPE: Felsic Intrusive Complex
DEPTH TO BEDROCK: 25-38 feet BGS (below ground surface) CURRENT DEPTH TO WATER TABLE: 12.02 – 13.38 feet BGS (11/28/16) HISTORIC GW FLUCTUATIONS: Over the past 15 years, the groundwater has fluctuated in the source area from 5-15 feet BGS
POTENTIOMETRIC GRADIENT: Southeast ~ 0.025 ft. /ft.
HYDRAULIC CONDUCTIVITY (K): 6.17–6.25 x 10-7 ft. /sec. GROUNDWATER VELOCITY: ~0.4–1.3 feet/year
1.4 Previous Reports

REPORT TITLE

CONSULTANT
DATE OF
REPORT

COMMENTS
UST Closure Report Pyramid Environmental 8/30/94 Soil TPH > Action Level
GW Sampling Report Pyramid Environmental 1/2/95 Confirmed GW impact
Comprehensive Site Assessment (CSA) Pyramid Environmental 9/20/96 Delineated extent of contamination
Corrective Action Plan
(CAP) Pyramid Environmental 1/30/97 Original CAP report
Corrective Action Plan (CAP) Pyramid Environmental 4/7/97 Revision with changes requested by NCDEQ
Pre-CAP Monitoring Report Pyramid Environmental 6/7/99 Received by NCDEQ
Active Remediation Monitoring Report Pyramid Environmental 11/99 to 01/13 Received by NCDEQ
Soil Cleanup Report Pyramid Environmental 5/31/2011 Received by NCDEQ
Active Rem. Mon. Report Pyramid Environmental 4/8/13 to
10/3/16 Received by NCDEQ
Active Rem. Mon. Report Pyramid Environmental 12/26/16 Current Report

2.0 GROUNDWATER SAMPLING
2.1 Monitoring Well Sampling On November 28, 2016, selected monitoring wells at the Harold Smith Site were sampled. WELLS SAMPLED: MW-1A, MW-10, MW-12 LAB ANALYSES: EPA Method 6200B

FREE PRODUCT: No free product has been observed on this site. TABLES & GRAPHS: Table 1: Monitoring Well Construction Details
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Table 2: Groundwater Elevation Data
Table 3: Monitoring Well Analytical Results FIGURES: Figure 4: Potentiometric Surface Map
Figure 5: MTBE Concentration Map
Figure 6: 1, 2-Dichloroethane Isoconcentration Map
STANDARD FIELD PROCEDURES: Appendix A LABORATORY REPORT & CHAIN OF CUSTODY: Appendix B

2.2 Potable Water Supply Well Sampling SAMPLING DATE: November 28, 2016 WELLS SAMPLED: 2765 INF, 2765 MID, 2765 EFF, 2768B, 2773, 2774, and 2779 The house at 2779 Union Ridge Road no longer uses the supply
well in the front yard, but uses the well located on an adjacent eastern property. The property at 2768 Union Ridge Road uses the supply well in the back yard and is automatically switched to the well in the front yard (2768-A) if the water level gets too low.
LAB ANALYSES: EPA Method 6200B TABLES: Table 4: Water Supply Well Analytical Results FIGURES: Figure 3 a/b: Adjoining Properties and Water Supply Wells.
STANDARD FIELD PROCEDURES: Appendix A LABORATORY REPORTS & CHAIN OF CUSTODY: Appendix B *NOTE* Supply wells are named by the address of the residence they serve and not the property
owner. All supply well addresses sampled are on Union Ridge Road. Mr. James McMillan
requested that Pyramid inform him of the POE system analytical results after each sampling. The well analytical evaluation letter is presented in Appendix C.
3.0 TREATMENT SYSTEM OPERATIONAL STATUS
3.1 System Operations The air sparging (AS) and soil vapor extraction (SVE) treatment system for the Harold Smith Grocery site began operation in July 1999 and operated through 2004 when it was shut down.
The system was restarted in February 2005 and the system was operational through October
2005. Repairs were made to the system and the remediation system was officially restarted on February 8, 2006. The system ran intermittently during the first quarter of 2006, needing minor repairs. System operation was interrupted by electrical power interruptions (strong storms) tripping circuit breakers. In August 2006, the system electrical contacts were found to be
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completely melted. The electrical components were replaced after pre-approval, and tested. The
motor of the air-sparge compressor would not operate, and the electric motor was found to be locked up. Pyramid contacted the equipment manufacturer and priced the replacement items necessary to get the air-sparge system running again. The SVE system continued to run after the replacement of the circuit breakers.
In March 2007 the rebuilt air sparge motor was put back in service. The restored compressor operated from March 2007 through June 2008. At this time, the air-sparge compressor needed to be replaced. The air sparge motor was replaced with a more serviceable model on October 7, 2008. The carbon vanes were changed by Pyramid in February 2010. The air sparge system was operational during the 1st quarter of 2011. The system ceased operating in March 2011 to allow
for the soil excavation. Since the system operation ceased, DO concentrations dropped and Pyramid recommended continued air sparging operation to speed site cleanup. In January 2012, the air sparge system was restarted using the selected remaining air sparge wells. In 2013, the system was upgraded to include deeper AS wells and a higher pressure compressor.
The system was operational for most of the fourth quarter of 2014, with the exception of short period of time in December when the system was down due a damaged compressor drive belt. The damaged belt was discovered on 12/12/14 and replaced on 12/19/14 and the system was re-started. Since the compressor drive belt was repaired, the system performed optimally in 2015 with few interruptions in operation.
In January 2016, the system was down when the technician performed the monthly O&M visit. The technician reset the system and it was operational upon departure. In February 2016, the system was down again. The technician tried to reset the system, but the operation failed. A damaged electric drive motor was causing the power to trip. On February 23, 2016, a
preapproval was sent to the DEQ requesting equipment, labor, and mileage to replace the electric drive motor. The preapproval was returned on February 25, 2016 and the work to replace the electric drive motor was performed on April 20, 2016. The system was in operation for the remainder of the second quarter of 2016.
During the third quarter of 2016, the system was mostly operational. The system was down for
brief periods in July and August, requiring a reset of the system. The technician performed system resets and routine maintenance to the system. System was operational upon August departure.
On October 4th, the system was not operational on arrival, the technician replaced the drive belt
and reset and restarted the system. Routine operational and maintenance tasks were also performed on the system. A summary of the operations and maintenance activities performed from October through December 2016 is presented in Appendix D.

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3.2 Contaminated Soil Removal In March 2009, Pyramid collected risk-based soil samples from several soil borings and added
several monitoring wells. The additional assessment was conducted to investigate the soils in the
area of the former pump island and provide additional monitoring wells to assess the source area for regulatory incident closure. The highest groundwater concentrations have been in MW-1 and MW-1A throughout the remediation period. As a result of the additional investigations, an area approximately 40 feet by 20 feet was identified as containing soil concentrations greater than
Soil-to-Groundwater (STGW) standards. Only the soil boring directly at the location of the
former pump island showed concentrations above residential Maximum Soil Contaminant Concentrations (MSCCs). The DEQ requested that Pyramid evaluate soil excavation as a way to help move the site toward regulatory closure. After the excavation plan was preapproved by the DEQ, Pyramid implemented the excavation plan.

In May 2011, Pyramid supervised the excavation of petroleum contaminated soils at the Harold Smith site in Burlington, NC. The goal of the soil excavation was to remove volatile petroleum hydrocarbons from the smear zone (between 5 and 15 feet BLS) to help reduce groundwater contamination. Based on certified weight tickets, 483.69 tons of petroleum-contaminated soil
was removed. Pyramid requested pre-approval to implement oxygen release compound in
addition to the excavation, but DEQ denied the request. The laboratory results of the post excavation soil samples collected indicate that all of the contaminated soils above the residential MSCCs were removed.
The remaining contamination detected at the site was above the STGW MSCCs and well below
the residential standards. The remaining STGW concentrations were located underneath the store building, along the northern property boundary, and on the eastern edge of the property near Union Ridge Road. Because of the structures, roads, and utilities, additional soil excavation was not feasible or recommended.

After the excavation of contaminated soil, Pyramid installed monitoring wells MW-1A and MW-15A to assess the groundwater in the source area. The latest results of these new wells (MW-1A and MW-15A) since installation are included in Section 4.0 with past results located in Table 3.
3.3 System Update

FIGURES: Figure 7: Remediation System Layout Map
To prevent the migration of the contaminant plume, protect nearby supply wells, and speed up remediation, the current air sparge (AS) and soil vapor extraction (SVE) system was updated in October 2012. Additional wells were added to the air sparge segment of the remediation system.
Seven deeper air sparge wells were added to surround the existing petroleum contaminant plume.
The additional were installed to surround the petroleum contaminant plume and provide additional air flow for the volatilization of the petroleum hydrocarbons. Along with the AS remediation update, the SVE system was repaired after it was damaged during the soil excavation in May 2011. A map of the Remediation System Layout is shown in Figure 7.

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4.0 SOIL & GROUNDWATER ASSESSMENT
4.1 Groundwater Analytical Results The results of the November 28, 2016 sampling events showed that remaining petroleum contaminants were detected at low concentrations. All of the reported concentrations are listed in micrograms per liter (µg/L). No concentrations of benzene were detected above the laboratory
detection limit in all the wells that were sampled. The concentrations of targeted compounds for
this sampling event have shown an overall decrease in the monitoring wells. The highest concentrations for this sampling event are shown below. Concentrations above NCAC 2L groundwater standards are shown in bold and the associated well numbers are shown in parentheses. All of the reported concentrations are listed in micrograms per liter (µg/L).

 Benzene 38 µg/L (MW-1A)
 Toluene 2.3 µg/L (MW-1A)
 Ethylbenzene 13 µg/L (MW-1A)
 Total Xylenes 94 µg/L (MW-1A)
 MTBE 35 µg/L (SW-2765 Influent)
 Isopropyl Ether (IPE) 94 µg/L (MW-1A)
 1,2-Dichloroethane 7.8 µg/L (MW-1A)
 Naphthalene 75 µg/L (MW-1A)
Over the past 17 years of groundwater and soil remediation, the concentrations in the
groundwater monitoring wells have decreased and are now approaching 2L drinking water standards. The benzene concentration in MW-1A has decreased from over 8,000 µg/L in 1998 to 38 µg/L
for the current monitoring period. The benzene concentration in MW-1A had been below or
slightly above 1.0 µg/L since November 2013; however, the March 2016 sampling event showed a concentration of 22 µg/L. This may have been due to the remediation system (Air-Sparging) being down at the time. Since the drive motor replacement in April 2016, the system has been operational and the benzene concentration decreased below detection limits.
The MTBE concentration in MW-1A has decreased from 610 µg/L in 1999 to not being detected at a concentration above the laboratory detection limits for the current monitoring period. During the current sampling the highest MTBE level recorded was a concentration of 35 µg/L, detected in SW-2765 Influent.

The monitoring well samples from MW-1A showed a concentration of 1,2-Dichloropropane (1.6 µg/L) above the 2L Standard of 0.6 µg/L in the May 2016 sampling event. 1,2-Dichloropropane had not been detected at a concentration above the laboratory detection limits until the March 2016 sampling event, which was the second detection of 1,2-Dichloropropane in MW-1A in the
last three sampling events. The concentration of 1,2-Dichloropropane has increased to 7.8 µg/L
for the current monitoring event. Pyramid will continue to monitor the 1,2-Dichloropropane concentrations for this well. Concentrations of 1,2-Dichloroethane were detected in the influent for SW-2765 (6.1 µg/L) for this sampling event and remain above the 2L Standard.
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Monitoring well MW-1A contains naphthalene at a concentration of 75 µg/L for the November
2016 sampling date. Concentrations of naphthalene have dropped considerably in wells MW-1A and MW-15A during the period of May 2013 to December 2015. As shown in Table 3, the groundwater contaminant concentrations in the source area decreased significantly after the contaminated soil excavation was performed in May 2001. In planning for
the soil excavation project, Pyramid recommended that the DEQ consider the placement of oxygen-release compounds in the open excavation to help clean up the site. Since cleanup is to stringent NCAC 2L Standards, any remedial process that can help reach regulatory closure more quickly should be considered by the DEQ. Pyramid’s request was not approved for Trust Fund reimbursement, and no oxygen-release compounds were used in the excavation. In the future, the
Trust Fund should consider reimbursing the use of oxygen-release compounds while excavations are open to help reduce the overall costs for petroleum incident closures. Active soil and groundwater remediation are needed to reduce the remaining petroleum contaminant concentrations in the groundwater.
4.2 Supply Well Analytical Results Supply well sampling was conducted on November 28, 2016 as required by the State. Pyramid
sampled six supply wells 2765, 2768B, 2774, 2773, and 2779. Influent, mid-fluent and effluent samples were collected from the point of entry (POE) treatment system for SW-2765. All samples were collected using clean, disposable nitrile gloves, preserved in laboratory provided containers, packed in ice and shipped to Prism Analytical Laboratories for analysis using EPA
Method 6200B.

Supply Well SW-2765 (McMillan POE System) Groundwater pumped from the supply well at address 2765 (SW-2765) is treated by a Point-of-Entry (POE) treatment system installed in 2000. The POE system consists of particulate and
carbon filters that remove petroleum from the groundwater. This residential treatment system has
shown effective groundwater treatment since 2000. The laboratory results of treated water samples collected from the supply well in November 2016 show no detections of petroleum contaminants. For the untreated water (influent) from SW-2765, MTBE (35 µg/L), isopropyl ether (38 µg/L),
and 1,2-Dichloroethane (6.1 µg/L) were detected above their respective (20 µg/L and 0.4 µg/L)
NCAC 2L Groundwater Standards. For the September 2016 sampling event, Chloromethane was detected at a concentration of 4.5 µg/L, which is above the 2L Groundwater Standard of 3 µg/L. Chloromethane has not been detected in previous sampling events for SW-2765 (influent) and was not detected for the November 2016 sampling event. Pyramid will continue to monitor
concentrations of Chloromethane in SW-2765. No petroleum hydrocarbon concentrations were
detected in the treated water (effluent) showing effective POE treatment. Table 4 shows the recent supply well analytical results. A copy of the laboratory report and chain of custody form is presented in Appendix B.

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Supply Well SW-2773 (Ricky Lassiter Residence) The most recent supply well sampling at the Lassiter residence (SW-2773) showed detections of MTBE (1.2 µg/L) and IPE (0.79 µg/L). Concentrations are well below 2L Standards of 20 µg/L and 70 µg/L respectively. This supply well has shown few petroleum impacts in the past several years; however, the February and April 2016 sampling events showed detections of petroleum contaminants. No 1,2 Dichloroethane was detected above laboratory limits in the Lassiter well
for the November 2016 sampling. The Lassiter residence is on bottled water at this time and has been using the account regularly. Since the residence is provided with bottled water, the potential for exposure is mitigated. Pyramid requests that the NC DEQ request a Health Risk Evaluation (HRE) from the central
office for this well. T.A.C./Pyramid will continue to monitor the petroleum concentrations for
this water supply well.
Supply Wells 2765B, 2774, & 2779 Laboratory analytical results show that there were no detectable petroleum hydrocarbon
concentrations in the supply well samples collected from wells 2768B, 2774, and 2779.

Supply Well Recommendations Pyramid recommends continued POE treatment of supply well 2765 and continued sampling of
the closest supply wells (2765 & 2773) on a quarterly basis. Pyramid recommends sampling of
the wells further from the source area (2761, 2768A, 2774, and 2779) on an annual basis. The next quarterly sampling event will be in March 2017.
5.0 CONCLUSIONS & RECOMMENDATIONS
Pyramid has completed the directed operation & maintenance and groundwater monitoring at the Harold Smith Grocery. Based on the current groundwater concentrations of MTBE and 1,2-Dichloroethane remaining above the 2L Groundwater Standards, the site remains high risk. The remediation goal is to reduce dissolved groundwater contamination below 2L Standards to
protect local water supply well users.

 The contaminated soil excavation was completed in May 2011. Contaminated soil beneath the NC DOT Right-of-Way and under the store building was unable to be
removed. Since petroleum concentrations that exceed the STGW levels remain under the
building and near the roadway, continued soil remediation using the SVE system is recommended at the site.
 Based on the risk to private well users, Pyramid recommended a new air-sparge system
with deeper air sparge wells to enhance the groundwater cleanup. This new system was designed, bid, pre-approved, and built from October 2012 through April 2013. The system was successfully started on April 3, 2013. The new system has shown significant reductions in the remaining petroleum contaminants.

 The most recent supply well sampling showed petroleum contamination in two of the closest downgradient water supply wells. One of the wells is on a POE treatment system,
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and the other residence is supplied with bottled water. The petroleum concentrations in
the local water supply wells will continue to be monitored.
 The continued presence of concentrations of petroleum contaminants in monitoring wells MW-1A, SW-2765, and SW-2773 show that groundwater contamination remains above
regulatory closure levels.
 Continued groundwater remediation and monitoring is recommended for the Harold Smith site. The next sampling of the monitoring wells and selected supply wells will be
conducted in March 2017.
6.0 CLOSURE
This report is prepared for and made available solely for the use of T.A.C, Inc. and the NCDEQ,
and the contents thereof may not be used or relied upon by any other person without the express written consent and authorization of Pyramid Environmental & Engineering, P.C. The observations, conclusions, and recommendations documented in this report are based on site conditions and information reviewed at the time of the investigation. Pyramid Environmental & Engineering, P.C. appreciates the opportunity to provide this environmental service.

FIGURES

TABLES

TABLE 1
Monitoring Well Construction Details
Harold Smith Grocery
Incident #12913
Union Ridge Road, Burlington, North Carolina

MONITORING
WELL
DATE
INSTALLED
WELL
DEPTH
DEPTH TO
BEDROCK
OUTER
CASING
RISER
INTERVAL
SCREEN
INTERVAL
GROUT
INTERVAL
BENTONITE
INTERVAL
SAND
INTERVAL
MW-1 11/21/94 20’ NBE NA 0-10’ 10-20’ 0-6’ 6-7.5 7.5-20’
MW-1A 6/27/11 24’ NBE NA 0-4’ 4-24’ 0-1’ 1-3’ 3-24’
MW-2 10/11/95 25’ 25’ NA 0-10’ 10-20’ 0-6’ 6-8’ 8-20’
MW-3 10/11/95 22’ NBE NA 0-7’ 7-22’ 0-3’ 3-5’ 5-22’
MW-4 11/8/95 20’ NBE NA 0-5’ 5-20’ 0-2’ 2-4’ 4-20’
MW-5 11/8/95 20’ NBE NA 0-5’ 5-20’ 0-2’ 2-4’ 4-20’
MW-6 1/2/96 53’ 25’ 0-30’ 0-43’ 43-53’ 0-38’ 38-41’ 41-53’
MW-7 1/3/96 13.8’ NBE NA 0-3.8’ 3.8-13.8’ 0-0.5’ 0.5-1.5’ 1.5-13.8’
MW-8 5/6/96 14.3’ 15’ NA 0-4.3’ 4.3-14.3’ 0-1.8’ 1.8-3.3’ 3.3-14.3’
MW-9 5/6/96 15’ NBE NA 0-5’ 5-15’ 0-2.5’ 2.5-4’ 6/4-15’
MW-10 11/30/99 20’ NBE NA 0-5’ 5-20’ 0.5-2’ 2-4’ 4-20’
MW-11 7/25/00 20’ NA NA 0-5’ 5-20’ 0.5-2’ 2-4’ 4-20’
MW-12 11/6/01 30’ NBE NA 0-10’ 10-30’ 0-6’ 6-8’ 8-30’
MW-13 3/5/09 25’ NBE NA 0-5’ 5-25’ 0-1’ 1-3’ 3-25’
MW-14 3/5/09 25’ NBE NA 0-5’ 5-25’ 0-1’ 1-3’ 3-25’
MW-15 3/5/09 25’ 24’ NA 0-5’ 5-25’ 0-1’ 1-3' 3-25’
MW-15A 6/27/11 24’ NBE NA 0-4’ 4-24’ 0-1’ 1-3’ 3-24’
TS-1 12/17/99 15’ NBE NA 0-5’ 5-15’ 0-2’ 2-4’ 4-15’
TS-2 12/17/99 15’ NBE NA 0-5’ 5-15’ 0-2’ 2-4’ 4-15’
TS-3 12/17/99 15’ NBE NA 0-5’ 5-15’ 0-2’ 2-4’ 4-15’
ALL MONITORING WELLS HAVE 2” PVC CASING/RISER AND 2” PVC SCREEN WITH 0.01” SLOTS. OUTER CASING FOR TYPE III WELL IS 6” PVC. NBE = NO BEDROCK ENCOUNTERED. NA = NOT APPLICABLE. SHADED WELLS ARE CLOSED.
TOC Depth Depth Free Free Corrected Corrected
Well Date Elevation To To Product Product Depth To Water
Number Gauged Groundwater Product Thickness Adjustment Water Elevation
(feet)(feet)(feet)(feet)(feet)(feet)(feet)
MW-1A 06-30-11 94.650 12.24 0.00 0.00 0.00 12.24 82.41
09-8-11 94.650 13.59 0.00 0.00 0.00 13.59 81.06
12-8-11 94.650 13.49 0.00 0.00 0.00 13.49 81.16
03-13-12 94.650 13.49 0.00 0.00 0.00 12.35 82.30
06-5-12 94.650 12.14 0.00 0.00 0.00 12.14 82.51
09-11-12 94.650 13.22 0.00 0.00 0.00 13.22 81.43
12-12-12 94.650 13.85 0.00 0.00 0.00 13.85 80.80
03-12-13 94.650 11.83 0.00 0.00 0.00 11.83 82.82
05-29-13 94.650 10.44 0.00 0.00 0.00 10.44 84.21
09-10-13 94.650 8.96 0.00 0.00 0.00 8.96 85.69
11-6-13 94.650 10.96 0.00 0.00 0.00 10.96 83.69
03-19-14 94.650 8.07 0.00 0.00 0.00 8.07 86.58
06-26-14 94.650 8.72 0.00 0.00 0.00 8.72 85.93
08-22-14 94.650 10.13 0.00 0.00 0.00 10.13 84.52
11-7-14 94.650 12.00 0.00 0.00 0.00 12.00 82.65
03-4-15 94.650 11.21 0.00 0.00 0.00 11.21 83.44
06-25-15 94.650 11.48 0.00 0.00 0.00 11.48 83.17
09-22-15 94.650 13.50 0.00 0.00 0.00 13.50 81.15
12-9-15 94.650 10.67 0.00 0.00 0.00 10.67 83.98
03-2-16 94.650 7.96 0.00 0.00 0.00 7.96 86.69
05-31-16 94.650 8.70 0.00 0.00 0.00 8.70 85.95
09-1-16 94.650 11.18 0.00 0.00 0.00 11.18 83.47
11-28-16 94.650 12.02 0.00 0.00 0.00 12.02 82.63
MW-3 09-9-09 93.065 12.03 0.00 0.00 0.00 12.03 81.04
12-3-09 93.065 10.40 0.00 0.00 0.00 10.40 82.67
03-24-10 93.065 7.34 0.00 0.00 0.00 7.34 85.73
06-24-10 93.065 8.07 0.00 0.00 0.00 8.07 85.00
09-8-10 93.065 9.62 0.00 0.00 0.00 9.62 83.45
12-10-10 93.065 10.77 0.00 0.00 0.00 10.77 82.30
03-8-11 93.065 10.60 0.00 0.00 0.00 10.60 82.47
06-30-11 93.065 10.74 0.00 0.00 0.00 10.74 82.33
09-8-11 93.065 12.16 0.00 0.00 0.00 12.16 80.91
12-8-11 93.065 12.06 0.00 0.00 0.00 12.06 81.01
03-13-12 93.065 13.49 0.00 0.00 0.00 10.52 82.55
06-5-12 93.065 10.71 0.00 0.00 0.00 10.71 82.36
09-11-12 93.065 11.79 0.00 0.00 0.00 11.79 81.28
12-12-12 93.065 12.37 0.00 0.00 0.00 12.37 80.70
03-12-13 93.065 10.53 0.00 0.00 0.00 10.53 82.54
05-29-13 93.065 9.04 0.00 0.00 0.00 9.04 84.03
09-10-13 93.065 7.53 0.00 0.00 0.00 7.53 85.54
11-6-13 93.065 8.88 0.00 0.00 0.00 8.88 84.19
03-19-14 93.065 6.69 0.00 0.00 0.00 6.69 86.38
06-26-14 93.065 7.46 0.00 0.00 0.00 7.46 85.61
08-22-14 93.065 8.82 0.00 0.00 0.00 8.82 84.25
11-7-14 93.065 10.84 0.00 0.00 0.00 10.84 82.23
03-4-15 93.065 8.51 0.00 0.00 0.00 8.51 84.56
06-25-15 93.065 10.22 0.00 0.00 0.00 10.22 82.85
09-22-15 93.065 12.35 0.00 0.00 0.00 12.35 80.72
12-9-15 93.065 9.42 0.00 0.00 0.00 9.42 83.65
03-2-16 93.065 6.54 0.00 0.00 0.00 6.54 86.53
05-31-16 93.065 7.38 0.00 0.00 0.00 7.38 85.69
09-1-16 93.065 9.92 0.00 0.00 0.00 9.92 83.15
MW-4 09-9-09 91.470 10.81 0.00 0.00 0.00 10.81 80.66
12-3-09 91.470 9.11 0.00 0.00 0.00 9.11 82.36
03-24-10 91.470 6.10 0.00 0.00 0.00 6.10 85.37
06-24-10 91.470 6.76 0.00 0.00 0.00 6.76 84.71
09-8-10 91.470 8.41 0.00 0.00 0.00 8.41 83.06
12-10-10 91.470 9.55 0.00 0.00 0.00 9.55 81.92
03-8-11 91.470 9.37 0.00 0.00 0.00 9.37 82.10
06-30-11 91.470 9.53 0.00 0.00 0.00 9.53 81.94
09-8-11 91.470 11.12 0.00 0.00 0.00 11.12 80.35
12-8-11 91.470 10.81 0.00 0.00 0.00 10.81 80.66
03-13-12 91.470 13.49 0.00 0.00 0.00 8.58 82.89
06-5-12 91.470 9.50 0.00 0.00 0.00 9.50 81.97
09-11-12 91.470 10.67 0.00 0.00 0.00 10.67 80.80
12-12-12 91.470 11.15 0.00 0.00 0.00 11.15 80.32
03-12-13 91.470 8.84 0.00 0.00 0.00 8.84 82.63
05-29-13 91.470 7.80 0.00 0.00 0.00 7.80 83.67
09-10-13 91.470 6.33 0.00 0.00 0.00 6.33 85.14
11-6-13 91.470 7.70 0.00 0.00 0.00 7.70 83.77
03-19-14 91.470 5.51 0.00 0.00 0.00 5.51 85.96
06-26-14 91.470 6.18 0.00 0.00 0.00 6.18 85.29
08-22-14 91.470 7.58 0.00 0.00 0.00 7.58 83.89
11-7-14 91.470 9.62 0.00 0.00 0.00 9.62 81.85
03-4-15 91.470 7.55 0.00 0.00 0.00 7.55 83.92
06-25-15 91.470 8.97 0.00 0.00 0.00 8.97 82.50
09-22-15 91.470 11.11 0.00 0.00 0.00 11.11 80.36
12-9-15 91.470 8.11 0.00 0.00 0.00 8.11 83.36
03-2-16 91.470 5.29 0.00 0.00 0.00 5.29 86.18
05-31-16 91.470 6.15 0.00 0.00 0.00 6.15 85.32
09-1-16 91.470 8.72 0.00 0.00 0.00 8.72 82.75
TABLE 2
Union Ridge Road, Burlington, North carolina
Groundwater Elevation Data
Harold Smith Grocery
Incident #12913
Page 1 of 6
TOC Depth Depth Free Free Corrected Corrected
Well Date Elevation To To Product Product Depth To Water
Number Gauged Groundwater Product Thickness Adjustment Water Elevation
(feet)(feet)(feet)(feet)(feet)(feet)(feet)
TABLE 2
Union Ridge Road, Burlington, North carolina
Groundwater Elevation Data
Harold Smith Grocery
Incident #12913
MW-5 09-9-09 95.045 12.81 0.00 0.00 0.00 12.81 82.24
12-3-09 95.045 6.35 0.00 0.00 0.00 6.35 88.70
03-24-10 95.045 6.63 0.00 0.00 0.00 6.63 88.42
06-24-10 95.045 8.25 0.00 0.00 0.00 8.25 86.80
09-8-10 95.045 10.34 0.00 0.00 0.00 10.34 84.71
12-10-10 95.045 9.78 0.00 0.00 0.00 9.78 85.27
03-8-11 95.045 7.20 0.00 0.00 0.00 7.20 87.85
06-30-11 95.045 8.53 0.00 0.00 0.00 8.53 86.52
09-8-11 95.045 12.62 0.00 0.00 0.00 12.62 82.43
12-8-11 95.045 8.74 0.00 0.00 0.00 8.74 86.31
03-13-12 95.045 13.49 0.00 0.00 0.00 10.94 84.11
06-5-12 95.045 10.87 0.00 0.00 0.00 10.87 84.18
09-11-12 95.045 11.98 0.00 0.00 0.00 11.98 83.07
12-12-12 95.045 13.20 0.00 0.00 0.00 13.20 81.85
03-12-13 95.045 7.32 0.00 0.00 0.00 7.32 87.73
05-29-13 95.045 9.38 0.00 0.00 0.00 9.38 85.67
09-10-13 95.045 8.16 0.00 0.00 0.00 8.16 86.89
11-6-13 95.045 9.53 0.00 0.00 0.00 9.53 85.52
03-19-14 95.045 2.87 0.00 0.00 0.00 2.87 92.18
06-26-14 95.045 7.78 0.00 0.00 0.00 7.78 87.27
08-22-14 95.045 9.06 0.00 0.00 0.00 9.06 85.99
11-7-14 95.045 11.16 0.00 0.00 0.00 11.16 83.89
03-4-15 95.045 1.70*0.00 0.00 0.00 1.70*93.35
06-25-15 95.045 10.78 0.00 0.00 0.00 10.78 84.27
09-22-15 95.045 13.05 0.00 0.00 0.00 13.05 82.00
12-9-15 95.045 7.19 0.00 0.00 0.00 7.19 87.86
03-2-16 95.045 4.93 0.00 0.00 0.00 4.93 90.12
05-31-16 95.045 7.38 0.00 0.00 0.00 7.38 87.67
09-1-16 95.045 10.68 0.00 0.00 0.00 10.68 84.37
MW-6 09-9-09 94.935 14.28 0.00 0.00 0.00 14.28 80.66
12-3-09 94.935 12.98 0.00 0.00 0.00 12.98 81.96
03-24-10 94.935 9.07 0.00 0.00 0.00 9.07 85.87
06-24-10 94.935 9.90 0.00 0.00 0.00 9.90 85.04
09-8-10 94.935 11.76 0.00 0.00 0.00 11.76 83.18
12-10-10 94.935 12.91 0.00 0.00 0.00 12.91 82.03
03-8-11 94.935 12.89 0.00 0.00 0.00 12.89 82.05
06-30-11 94.935 12.91 0.00 0.00 0.00 12.91 82.03
09-8-11 94.935 14.50 0.00 0.00 0.00 14.50 80.44
12-8-11 94.935 14.20 0.00 0.00 0.00 14.20 80.74
03-13-12 94.935 13.49 0.00 0.00 0.00 12.94 82.00
06-5-12 94.935 13.10 0.00 0.00 0.00 13.10 81.84
09-11-12 94.935 14.26 0.00 0.00 0.00 14.26 80.68
12-12-12 94.935 14.58 0.00 0.00 0.00 14.58 80.36
03-12-13 94.935 12.72 0.00 0.00 0.00 12.72 82.22
05-29-13 94.935 11.38 0.00 0.00 0.00 11.38 83.56
09-10-13 94.935 9.65 0.00 0.00 0.00 9.65 85.29
11-6-13 94.935 11.29 0.00 0.00 0.00 11.29 83.65
03-19-14 94.935 8.58 0.00 0.00 0.00 8.58 86.36
06-26-14 94.935 9.39 0.00 0.00 0.00 9.39 85.55
08-22-14 94.935 11.01 0.00 0.00 0.00 11.01 83.93
11-7-14 94.935 12.99 0.00 0.00 0.00 12.99 81.95
03-4-15 94.935 12.11 0.00 0.00 0.00 12.11 82.83
06-25-15 94.935 12.43 0.00 0.00 0.00 12.43 82.51
09-22-15 94.935 14.50 0.00 0.00 0.00 14.50 80.44
12-9-15 94.935 11.53 0.00 0.00 0.00 11.53 83.41
03-2-16 94.935 8.40 0.00 0.00 0.00 8.40 86.54
05-31-16 94.935 9.38 0.00 0.00 0.00 9.38 85.56
09-1-16 94.935 12.14 0.00 0.00 0.00 12.14 82.80
MW-7 09-9-09 94.215 11.61 0.00 0.00 0.00 11.61 82.61
12-3-09 94.215 9.65 0.00 0.00 0.00 9.65 84.57
03-24-10 94.215 7.69 0.00 0.00 0.00 7.69 86.53
06-24-10 94.215 7.55 0.00 0.00 0.00 7.55 86.67
09-8-10 94.215 8.18 0.00 0.00 0.00 8.18 86.04
12-10-10 94.215 10.36 0.00 0.00 0.00 10.36 83.86
03-8-11 94.215 9.94 0.00 0.00 0.00 9.94 84.28
06-30-11 94.215 10.92 0.00 0.00 0.00 10.92 83.30
09-8-11 94.215 12.05 0.00 0.00 0.00 12.05 82.17
12-8-11 94.215 11.64 0.00 0.00 0.00 11.64 82.58
03-13-12 94.215 13.49 0.00 0.00 0.00 10.75 83.47
06-5-12 94.215 10.63 0.00 0.00 0.00 10.63 83.59
09-11-12 94.215 11.33 0.00 0.00 0.00 11.33 82.89
12-12-12 94.215 12.20 0.00 0.00 0.00 12.20 82.02
03-12-13 94.215 NG 0.00 0.00 0.00 0.00 NG
05-29-13 94.215 NG 0.00 0.00 0.00 0.00 NG
09-10-13 94.215 7.57 0.00 0.00 0.00 7.57 86.65
11-6-13 94.215 9.08 0.00 0.00 0.00 9.08 85.14
03-19-14 94.215 6.95 0.00 0.00 0.00 6.95 87.27
Page 2 of 6
TOC Depth Depth Free Free Corrected Corrected
Well Date Elevation To To Product Product Depth To Water
Number Gauged Groundwater Product Thickness Adjustment Water Elevation
(feet)(feet)(feet)(feet)(feet)(feet)(feet)
TABLE 2
Union Ridge Road, Burlington, North carolina
Groundwater Elevation Data
Harold Smith Grocery
Incident #12913
MW-7 06-26-14 94.215 7.47 0.00 0.00 0.00 7.47 86.75
08-22-14 94.215 8.70 0.00 0.00 0.00 8.70 85.52
11-7-14 94.215 10.60 0.00 0.00 0.00 10.60 83.62
03-4-15 94.215 9.40 0.00 0.00 0.00 9.40 84.82
06-25-15 94.215 9.96 0.00 0.00 0.00 9.96 84.26
09-22-15 94.215 11.76 0.00 0.00 0.00 11.76 82.46
12-9-15 94.215 9.20 0.00 0.00 0.00 9.20 85.02
03-2-16 94.215 6.88 0.00 0.00 0.00 6.88 87.34
05-31-16 94.215 7.45 0.00 0.00 0.00 7.45 86.77
09-1-16 94.215 9.67 0.00 0.00 0.00 9.67 84.55
MW-8 09-9-09 89.630 NG 0.00 0.00 0.00 0.00 NG
12-3-09 89.630 7.23 0.00 0.00 0.00 7.23 82.40
03-24-10 89.630 5.64 0.00 0.00 0.00 5.64 83.99
06-24-10 89.630 6.13 0.00 0.00 0.00 6.13 83.50
09-8-10 89.630 7.79 0.00 0.00 0.00 7.79 81.84
12-10-10 89.630 9.43 0.00 0.00 0.00 9.43 80.20
03-8-11 89.630 8.39 0.00 0.00 0.00 8.39 81.24
06-30-11 89.630 NG 0.00 0.00 0.00 0.00 NG
09-8-11 89.630 NG 0.00 0.00 0.00 0.00 NG
12-8-11 89.630 NG 0.00 0.00 0.00 0.00 NG
03-13-12 89.630 NG 0.00 0.00 0.00 0.00 NG
06-5-12 89.630 8.80 0.00 0.00 0.00 8.80 80.83
09-11-12 89.630 9.84 0.00 0.00 0.00 9.84 79.79
12-12-12 89.630 10.60 0.00 0.00 0.00 10.60 79.03
03-12-13 89.630 NG 0.00 0.00 0.00 0.00 NG
05-29-13 89.630 NG 0.00 0.00 0.00 0.00 NG
09-10-13 89.630 NG 0.00 0.00 0.00 0.00 NG
11-6-13 89.630 NG 0.00 0.00 0.00 0.00 NG
03-19-14 89.630 NG 0.00 0.00 0.00 0.00 NG
06-26-14 89.630 NG 0.00 0.00 0.00 0.00 NG
08-22-14 89.630 NG 0.00 0.00 0.00 0.00 NG
11-7-14 89.630 NG 0.00 0.00 0.00 0.00 NG
03-4-15 89.630 NG 0.00 0.00 0.00 0.00 NG
06-25-15 89.630 NG 0.00 0.00 0.00 0.00 NG
09-22-15 89.630 NG 0.00 0.00 0.00 0.00 NG
12-9-15 89.630 NG 0.00 0.00 0.00 0.00 NG
03-2-16 89.630 NG 0.00 0.00 0.00 0.00 NG
05-31-16 89.630 NG 0.00 0.00 0.00 0.00 NG
09-1-16 89.630 NG 0.00 0.00 0.00 0.00 NG
MW-9 09-9-09 94.770 14.21 0.00 0.00 0.00 14.21 80.56
12-3-09 94.770 12.76 0.00 0.00 0.00 12.76 82.01
03-24-10 94.770 8.91 0.00 0.00 0.00 8.91 85.86
06-24-10 94.770 9.79 0.00 0.00 0.00 9.79 84.98
09-8-10 94.770 11.70 0.00 0.00 0.00 11.70 83.07
12-10-10 94.770 12.89 0.00 0.00 0.00 12.89 81.88
03-8-11 94.770 12.79 0.00 0.00 0.00 12.79 81.98
06-30-11 94.770 NG 0.00 0.00 0.00 0.00 NG
09-8-11 94.770 14.34 0.00 0.00 0.00 14.34 80.43
12-8-11 94.770 14.09 0.00 0.00 0.00 14.09 80.68
03-13-12 94.770 13.49 0.00 0.00 0.00 11.82 82.95
06-5-12 94.770 NG 0.00 0.00 0.00 0.00 NG
09-11-12 94.770 14.15 0.00 0.00 0.00 14.15 80.62
12-12-12 94.770 NG 0.00 0.00 0.00 0.00 NG
03-12-13 94.770 12.60 0.00 0.00 0.00 12.60 82.17
05-29-13 94.770 11.20 0.00 0.00 0.00 11.20 83.57
09-10-13 94.770 9.50 0.00 0.00 0.00 9.50 85.27
11-6-13 94.770 11.16 0.00 0.00 0.00 11.16 83.61
03-19-14 94.770 8.18 0.00 0.00 0.00 8.18 86.59
06-26-14 94.770 9.30 0.00 0.00 0.00 9.30 85.47
08-22-14 94.770 10.88 0.00 0.00 0.00 10.88 83.89
11-7-14 94.770 12.92 0.00 0.00 0.00 12.92 81.85
03-4-15 94.770 12.00 0.00 0.00 0.00 12.00 82.77
06-25-15 94.770 12.27 0.00 0.00 0.00 12.27 82.50
09-22-15 94.770 14.37 0.00 0.00 0.00 14.37 80.40
12-9-15 94.770 11.48 0.00 0.00 0.00 11.48 83.29
03-2-16 94.770 8.28 0.00 0.00 0.00 8.28 86.49
05-31-16 94.770 9.27 0.00 0.00 0.00 9.27 85.50
09-1-16 94.770 11.99 0.00 0.00 0.00 11.99 82.78
MW-10 09-9-09 93.210 13.25 0.00 0.00 0.00 13.25 79.96
12-3-09 93.210 10.51 0.00 0.00 0.00 10.51 82.70
03-24-10 93.210 7.80 0.00 0.00 0.00 7.80 85.41
06-24-10 93.210 8.77 0.00 0.00 0.00 8.77 84.44
09-8-10 93.210 10.74 0.00 0.00 0.00 10.74 82.47
12-10-10 93.210 12.15 0.00 0.00 0.00 12.15 81.06
03-8-11 93.210 11.78 0.00 0.00 0.00 11.78 81.43
06-30-11 93.210 12.29 0.00 0.00 0.00 12.29 80.92
09-8-11 93.210 13.39 0.00 0.00 0.00 13.39 79.82
12-8-11 93.210 12.91 0.00 0.00 0.00 12.91 80.30
03-13-12 93.210 13.49 0.00 0.00 0.00 11.61 81.6006-5-12 93.210 11.79 0.00 0.00 0.00 11.79 81.42
Page 3 of 6
TOC Depth Depth Free Free Corrected Corrected
Well Date Elevation To To Product Product Depth To Water
Number Gauged Groundwater Product Thickness Adjustment Water Elevation
(feet)(feet)(feet)(feet)(feet)(feet)(feet)
TABLE 2
Union Ridge Road, Burlington, North carolina
Groundwater Elevation Data
Harold Smith Grocery
Incident #12913
MW-10 09-11-12 93.210 13.10 0.00 0.00 0.00 13.10 80.11
12-12-12 93.210 13.29 0.00 0.00 0.00 13.29 79.92
03-12-13 93.210 10.93 0.00 0.00 0.00 10.93 82.28
05-29-13 93.210 10.03 0.00 0.00 0.00 10.03 83.18
09-10-13 93.210 8.61 0.00 0.00 0.00 8.61 84.60
11-6-13 93.210 10.11 0.00 0.00 0.00 10.11 83.10
03-19-14 93.210 6.68 0.00 0.00 0.00 6.68 86.53
06-26-14 93.210 8.43 0.00 0.00 0.00 8.43 84.78
08-22-14 93.210 10.00 0.00 0.00 0.00 10.00 83.21
11-7-14 93.210 11.98 0.00 0.00 0.00 11.98 81.23
03-4-15 93.210 10.66 0.00 0.00 0.00 10.66 82.55
06-25-15 93.210 11.35 0.00 0.00 0.00 11.35 81.86
09-22-15 93.210 13.44 0.00 0.00 0.00 13.44 79.77
12-9-15 93.210 10.42 0.00 0.00 0.00 10.42 82.79
03-2-16 93.210 6.95 0.00 0.00 0.00 6.95 86.26
05-31-16 93.210 8.13 0.00 0.00 0.00 8.13 85.08
09-1-16 93.210 11.80 0.00 0.00 0.00 11.80 81.41
11-28-16 93.210 12.07 0.00 0.00 0.00 12.07 81.14
MW-11 09-9-09 95.840 NG 0.00 0.00 0.00 0.00 NG
12-3-09 95.840 14.05 0.00 0.00 0.00 14.05 81.79
03-24-10 95.840 10.06 0.00 0.00 0.00 10.06 85.78
06-24-10 95.840 10.91 0.00 0.00 0.00 10.91 84.93
09-8-10 95.840 12.77 0.00 0.00 0.00 12.77 83.07
12-10-10 95.840 14.00 0.00 0.00 0.00 14.00 81.84
03-8-11 95.840 13.94 0.00 0.00 0.00 13.94 81.90
06-30-11 95.840 13.92 0.00 0.00 0.00 13.92 81.92
09-8-11 95.840 15.52 0.00 0.00 0.00 15.52 80.32
12-8-11 95.840 15.21 0.00 0.00 0.00 15.21 80.63
03-13-12 95.840 13.49 0.00 0.00 0.00 13.94 81.90
06-5-12 95.840 14.16 0.00 0.00 0.00 14.16 81.68
09-11-12 95.840 15.36 0.00 0.00 0.00 15.36 80.48
12-12-12 95.840 15.60 0.00 0.00 0.00 15.60 80.24
03-12-13 95.840 13.88 0.00 0.00 0.00 13.88 81.96
05-29-13 95.840 12.35 0.00 0.00 0.00 12.35 83.49
09-10-13 95.840 10.64 0.00 0.00 0.00 10.64 85.20
11-6-13 95.840 12.35 0.00 0.00 0.00 12.35 83.49
03-19-14 95.840 9.58 0.00 0.00 0.00 9.58 86.26
06-26-14 95.840 10.41 0.00 0.00 0.00 10.41 85.43
08-22-14 95.840 12.02 0.00 0.00 0.00 12.02 83.82
11-7-14 95.840 14.04 0.00 0.00 0.00 14.04 81.80
03-4-15 95.840 13.21 0.00 0.00 0.00 13.21 82.63
06-25-15 95.840 13.41 0.00 0.00 0.00 13.41 82.43
09-22-15 95.840 15.52 0.00 0.00 0.00 15.52 80.32
12-9-15 95.840 12.59 0.00 0.00 0.00 12.59 83.25
03-2-16 95.840 9.41 0.00 0.00 0.00 9.41 86.43
05-31-16 95.840 10.46 0.00 0.00 0.00 10.46 85.38
09-1-16 95.840 13.14 0.00 0.00 0.00 13.14 82.70
MW-12 09-9-09 94.270 14.70 0.00 0.00 0.00 14.70 79.57
12-3-09 94.270 13.45 0.00 0.00 0.00 13.45 80.82
03-24-10 94.270 9.50 0.00 0.00 0.00 9.50 84.77
06-24-10 94.270 10.36 0.00 0.00 0.00 10.36 83.91
09-8-10 94.270 12.26 0.00 0.00 0.00 12.26 82.01
12-10-10 94.270 13.43 0.00 0.00 0.00 13.43 80.84
03-8-11 94.270 13.35 0.00 0.00 0.00 13.35 80.92
06-30-11 94.270 13.42 0.00 0.00 0.00 13.42 80.85
09-8-11 94.270 15.05 0.00 0.00 0.00 15.05 79.22
12-8-11 94.270 14.66 0.00 0.00 0.00 14.66 79.61
03-13-12 94.270 13.49 0.00 0.00 0.00 13.43 80.84
06-5-12 94.270 13.58 0.00 0.00 0.00 13.58 80.69
09-11-12 94.270 14.79 0.00 0.00 0.00 14.79 79.48
12-12-12 94.270 15.04 0.00 0.00 0.00 15.04 79.23
03-12-13 94.270 13.24 0.00 0.00 0.00 13.24 81.03
05-29-13 94.270 11.79 0.00 0.00 0.00 11.79 82.48
09-10-13 94.270 10.08 0.00 0.00 0.00 10.08 84.19
11-6-13 94.270 11.73 0.00 0.00 0.00 11.73 82.54
03-19-14 94.270 8.92 0.00 0.00 0.00 8.92 85.35
06-26-14 94.270 9.86 0.00 0.00 0.00 9.86 84.41
08-22-14 94.270 11.43 0.00 0.00 0.00 11.43 82.84
11-7-14 94.270 13.45 0.00 0.00 0.00 13.45 80.82
03-4-15 94.270 12.59 0.00 0.00 0.00 12.59 81.68
06-25-15 94.270 12.82 0.00 0.00 0.00 12.82 81.45
09-22-15 94.270 14.95 0.00 0.00 0.00 14.95 79.32
12-9-15 94.270 12.04 0.00 0.00 0.00 12.04 82.23
03-2-16 94.270 8.84 0.00 0.00 0.00 8.84 85.43
05-31-16 94.270 9.84 0.00 0.00 0.00 9.84 84.43
09-1-16 94.270 12.60 0.00 0.00 0.00 12.60 81.67
11-28-16 94.270 13.38 0.00 0.00 0.00 13.38 80.89
MW-13 03-18-09 94.805 13.58 0.00 0.00 0.00 13.58 81.23
06-23-09 94.805 11.01 0.00 0.00 0.00 11.01 83.80
09-9-09 94.805 12.61 0.00 0.00 0.00 12.61 82.20
12-3-09 94.805 11.26 0.00 0.00 0.00 11.26 83.55
03-24-10 94.805 7.92 0.00 0.00 0.00 7.92 86.89
Page 4 of 6
TOC Depth Depth Free Free Corrected Corrected
Well Date Elevation To To Product Product Depth To Water
Number Gauged Groundwater Product Thickness Adjustment Water Elevation
(feet)(feet)(feet)(feet)(feet)(feet)(feet)
TABLE 2
Union Ridge Road, Burlington, North carolina
Groundwater Elevation Data
Harold Smith Grocery
Incident #12913
MW-13 06-24-10 94.805 10.56 0.00 0.00 0.00 10.56 84.25
09-8-10 94.805 9.82 0.00 0.00 0.00 9.82 84.99
12-10-10 94.805 10.93 0.00 0.00 0.00 10.93 83.88
03-8-11 94.805 11.24 0.00 0.00 0.00 11.24 83.57
06-30-11 94.805 10.73 0.00 0.00 0.00 10.73 84.08
09-8-11 94.805 12.51 0.00 0.00 0.00 12.51 82.30
12-8-11 94.805 12.69 0.00 0.00 0.00 12.69 82.12
03-13-12 94.805 13.49 0.00 0.00 0.00 10.48 84.33
06-5-12 94.805 10.28 0.00 0.00 0.00 10.28 84.53
09-11-12 94.805 11.55 0.00 0.00 0.00 11.55 83.26
12-12-12 94.805 13.55 0.00 0.00 0.00 13.55 81.26
03-12-13 94.805 10.33 0.00 0.00 0.00 10.33 84.48
05-29-13 94.805 9.41 0.00 0.00 0.00 9.41 85.40
09-10-13 94.805 7.78 0.00 0.00 0.00 7.78 87.03
11-6-13 94.805 9.36 0.00 0.00 0.00 9.36 85.45
03-19-14 94.805 6.88 0.00 0.00 0.00 6.88 87.93
06-26-14 94.805 7.53 0.00 0.00 0.00 7.53 87.28
08-22-14 94.805 8.60 0.00 0.00 0.00 8.60 86.21
11-7-14 94.805 10.69 0.00 0.00 0.00 10.69 84.12
03-4-15 94.805 9.46 0.00 0.00 0.00 9.46 85.35
06-25-15 94.805 10.11 0.00 0.00 0.00 10.11 84.70
09-22-15 94.805 12.30 0.00 0.00 0.00 12.30 82.51
12-9-15 94.805 8.90 0.00 0.00 0.00 8.90 85.91
03-2-16 94.805 6.54 0.00 0.00 0.00 6.54 88.27
05-31-16 94.805 7.21 0.00 0.00 0.00 7.21 87.60
09-1-16 94.805 9.75 0.00 0.00 0.00 9.75 85.06
MW-14 03-18-09 94.395 NG 0.00 0.00 0.00 0.00 NG
06-23-09 94.395 NG 0.00 0.00 0.00 0.00 NG
09-9-09 94.395 NG 0.00 0.00 0.00 0.00 NG
12-3-09 94.395 NG 0.00 0.00 0.00 0.00 NG
03-24-10 94.395 NG 0.00 0.00 0.00 0.00 NG
06-24-10 94.395 NG 0.00 0.00 0.00 0.00 NG
09-8-10 94.395 NG 0.00 0.00 0.00 0.00 NG
12-10-10 94.395 NG 0.00 0.00 0.00 0.00 NG
03-8-11 94.395 NG 0.00 0.00 0.00 0.00 NG
06-30-11 94.395 NG 0.00 0.00 0.00 0.00 NG
09-8-11 94.395 NG 0.00 0.00 0.00 0.00 NG
12-8-11 94.395 NG 0.00 0.00 0.00 0.00 NG
03-13-12 94.395 NG 0.00 0.00 0.00 0.00 NG
06-5-12 94.395 NG 0.00 0.00 0.00 0.00 NG
09-11-12 94.395 NG 0.00 0.00 0.00 0.00 NG
12-12-12 94.395 NG 0.00 0.00 0.00 0.00 NG
03-12-13 94.395 NG 0.00 0.00 0.00 0.00 NG
05-29-13 94.395 NG 0.00 0.00 0.00 0.00 NG
09-10-13 94.395 NG 0.00 0.00 0.00 0.00 NG
11-6-13 94.395 NG 0.00 0.00 0.00 0.00 NG
03-19-14 94.395 NG 0.00 0.00 0.00 0.00 NG
06-26-14 94.395 NG 0.00 0.00 0.00 0.00 NG
08-22-14 94.395 NG 0.00 0.00 0.00 0.00 NG
11-7-14 94.395 NG 0.00 0.00 0.00 0.00 NG
03-4-15 94.395 NG 0.00 0.00 0.00 0.00 NG
06-25-15 94.395 NG 0.00 0.00 0.00 0.00 NG
09-22-15 94.395 NG 0.00 0.00 0.00 0.00 NG
12-9-15 94.395 NG 0.00 0.00 0.00 0.00 NG
03-2-16 94.395 NG 0.00 0.00 0.00 0.00 NG
05-31-16 94.395 NG 0.00 0.00 0.00 0.00 NG
09-1-16 94.395 NG 0.00 0.00 0.00 0.00 NG
MW-15/03-18-09 93.775 13.77 0.00 0.00 0.00 13.77 80.01
MW-15A 06-23-09 93.775 9.90 0.00 0.00 0.00 9.90 83.88
09-9-09 93.775 11.57 0.00 0.00 0.00 11.57 82.21
12-3-09 93.775 11.24 0.00 0.00 0.00 11.24 82.54
03-24-10 93.775 7.57 0.00 0.00 0.00 7.57 86.21
06-24-10 93.775 8.43 0.00 0.00 0.00 8.43 85.35
09-8-10 93.775 9.67 0.00 0.00 0.00 9.67 84.11
12-10-10 93.775 11.24 0.00 0.00 0.00 11.24 82.54
03-8-11 93.775 11.42 0.00 0.00 0.00 11.42 82.36
06-30-11 94.950 12.47 0.00 0.00 0.00 12.47 82.48
09-8-11 94.950 13.88 0.00 0.00 0.00 13.88 81.07
12-8-11 94.950 13.75 0.00 0.00 0.00 13.75 81.20
03-13-12 94.950 13.49 0.00 0.00 0.00 12.60 82.35
06-5-12 94.950 12.45 0.00 0.00 0.00 12.45 82.50
09-11-12 94.950 13.51 0.00 0.00 0.00 13.51 81.44
12-12-12 94.950 14.08 0.00 0.00 0.00 14.08 80.87
03-12-13 94.950 12.07 0.00 0.00 0.00 12.07 82.88
05-29-13 94.950 8.72 0.00 0.00 0.00 8.72 86.23
09-10-13 94.950 9.17 0.00 0.00 0.00 9.17 85.78
11-6-13 94.950 7.94 0.00 0.00 0.00 7.94 87.01
Page 5 of 6
TOC Depth Depth Free Free Corrected Corrected
Well Date Elevation To To Product Product Depth To Water
Number Gauged Groundwater Product Thickness Adjustment Water Elevation
(feet)(feet)(feet)(feet)(feet)(feet)(feet)
TABLE 2
Union Ridge Road, Burlington, North carolina
Groundwater Elevation Data
Harold Smith Grocery
Incident #12913
MW-15/03-19-14 94.950 8.33 0.00 0.00 0.00 8.33 86.62
MW-15A 06-26-14 94.950 7.78 0.00 0.00 0.00 7.78 87.17
08-22-14 94.950 9.14 0.00 0.00 0.00 9.14 85.81
11-7-14 94.950 11.24 0.00 0.00 0.00 11.24 83.71
03-4-15 94.950 11.40 0.00 0.00 0.00 11.40 83.55
06-25-15 94.950 10.88 0.00 0.00 0.00 10.88 84.07
09-22-15 94.950 13.81 0.00 0.00 0.00 13.81 81.14
12-9-15 94.950 9.28 0.00 0.00 0.00 9.28 85.67
03-2-16 94.950 8.18 0.00 0.00 0.00 8.18 86.77
05-31-16 94.950 8.88 0.00 0.00 0.00 8.88 86.07
09-1-16 94.950 11.35 0.00 0.00 0.00 11.35 83.60
*MW-5 depth inaccurate for this event as groundwater was seeping in at time of measurement.
Page 6 of 6
PARAMETER UNITS DATE MW-1/MW-3 MW-4 MW-5 MW-6*MW-7 MW-8 MW-9 MW-10 MW-11 MW-12 MW-13 MW-14 MW-15/TS-1 NCAC 2L
MW-1A MW-15A Groundwater
Standard
Benzene ug/l 03-14-07 440 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 DNE DNE DNE NS 1
06-06-07 410 <1 <1 <1 3.6 <1 <1 <1 <1 <1 2.4 DNE DNE DNE NS
08-29-07 340 <1 <1 <1 2.6 <1 <1 <1 <1 <1 6.4 DNE DNE DNE NS
12-13-07 200 <1 <1 <1 1.1 <1 <1 <1 <1 <1 9.2 DNE DNE DNE NS
03-14-08 250 <1 <1 <1 24 <1 <1 <1 <1 <1 130 DNE DNE DNE NS
06-18-08 310 <1 <1 <1 NS <1 <1 <1 <1 <1 5.3 DNE DNE DNE NS
09-10-08 <100 <1 <1 <1 11.6 <1 <1 <1 <1 <1 69.5 DNE DNE DNE NS
12-03-08 18 <0.5 <0.5 <0.5 8.7 32 <0.5 <0.5 <0.5 <0.5 41 DNE DNE DNE NS
03-18-09 110 <0.5 1.9 <0.5 <0.5 5.9 <0.5 <0.5 <0.5 <0.5 3.6 <0.5 NS 520 NS
06-23-09 290 <0.5 <0.5 <0.5 <0.5 0.66 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 NS 210 NS
09-09-09 190 <0.5 <0.5 <0.5 <0.5 0.66 NS <0.5 <0.5 NS 5.1 <0.5 NS 910 NS
12-03-09 180 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 NS 7.5 <0.5 NS 440 NS
03-24-10 120 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 NS 55 NS
06-24-10 30 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 NS 98 NS
09-08-10 69.7 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 1.1 <0.5 NS 37.5 NS
12-10-10 140 NS NS <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 1.3 <0.5 NS 5.4 NS
03-08-11 120 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 NS 52 NS
06-30-11 18.3 <0.5 <0.5 <0.5 <0.5 <0.5 NS NS <0.5 <0.5 <0.5 <0.5 NS 77.1 NS
09-08-11 22 <0.5 <0.5 <0.5 <0.5 <0.5 NS NS <0.5 <0.5 1.7 <0.5 NS 462 NS
12-09-11 15.4 <0.5 <0.5 <0.5 <0.5 <0.5 NS <0.5 <0.5 <0.5 0.61 <0.5 NS 384 NS
03-14-12 20 ND ND ND ND ND NS ND ND ND 0.17J ND NS 290 NS
06-07-12 28 ND ND ND ND ND ND NS ND ND ND ND NS 220 NS
9/11-12/12 30.1 ND ND ND ND ND ND NS ND ND 1.2 ND NS 132 NS
12-12-12 19 ND ND ND ND ND ND NS ND ND 0.81 ND NS 91 NS
03-14-13 20.4 ND ND ND ND NS NS NS ND ND ND ND NS 82.8 NS
05-30-13 0.83 ND ND ND ND NS NS ND ND ND ND ND NS ND NS
09-10-13 5.5 ND ND ND ND ND NS ND ND ND ND ND NS 4.4 NS
11-07-13 0.5 ND ND ND ND ND NS ND ND ND ND ND NS ND NS
03-20-14 0.49 ND ND ND ND ND NS ND ND ND ND ND NS 0.29 NS
06-26-14 ND ND ND ND ND ND NS ND ND ND ND ND NS ND NS
08-22-14 ND ND ND ND ND ND NS ND ND ND ND ND NS ND NS
11-07-14 0.15 ND ND ND 0.15 ND NS ND ND ND ND ND NS ND NS
03-04-15 ND ND ND ND ND ND NS ND ND ND ND ND NS 1.1 NS
06-25-15 ND ND ND ND ND ND NS ND ND ND ND ND NS ND NS
9/22-23/15 1.2 ND ND ND ND ND NS ND ND ND ND ND NS ND NS
12-09-15 ND ND ND ND ND ND NS ND ND ND ND ND NS ND NS
03-02-16 22 ND ND ND ND ND NS ND ND ND ND ND NS 0.82 NS
05-31-16 10 ND ND ND ND ND NS ND ND ND ND ND NS ND NS
9/1 - 9/2/16 ND ND ND ND ND ND NS ND ND ND ND ND NS ND NS
11-28-16 38 NS NS NS NS NS NS NS BRL NS BRL NS NS NS NS
Toluene ug/l 03-14-07 2.3 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 DNE DNE DNE NS 600
06-06-07 5200 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 DNE DNE DNE NS
08-29-07 6300 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 DNE DNE DNE NS
12-13-07 3300 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 DNE DNE DNE NS
03-14-08 4400 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 DNE DNE DNE NS
06-18-08 5800 <1 <1 <1 NS <1 <1 <1 <1 <1 <1 DNE DNE DNE NS
09-10-08 1850 <1 <1 <1 <1 <1 2.72 <1 <1 <1 <10 DNE DNE DNE NS
12-03-08 28 <1 <1 <1 <1 140 5.3 <1 <1 <1 <1 DNE DNE DNE NS
03-18-09 3200 <1 <1 <1 <1 50 2.9 <1 <1 <1 <1 <0.5 NS 12000 NS
06-23-09 5700 <1 <1 <1 <1 0.69J 2.9 <1 <1 <1 <1 <1 NS 17000 NS
09-09-09 4300 <1 <1 <1 <1 <1 NS <1 <1 NS <1 <1 NS 25000 NS
12-03-09 3900 <1 <1 <1 <1 <1 <1 <1 <1 NS <1 <1 NS 30000 NS
03-24-10 3100 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 NS 1600 NS
06-24-10 640 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 NS 6900 NS
09-08-10 1090 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 NS 1630 NS
12-10-10 3100 NS NS <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 NS 94 NS
03-08-11 1390 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 NS 1940 NS
06-30-11 29.6 <0.5 <0.5 <0.5 <0.5 <0.5 NS NS <0.5 <0.5 <0.5 <0.5 NS 600 NS
09-08-11 2.1 <0.5 <0.5 <0.5 <0.5 <0.5 NS NS <0.5 <0.5 <0.5 <0.5 NS 5620 NS
12-09-11 5.9 <0.5 <0.5 <0.5 <0.5 <0.5 NS <0.5 <0.5 <0.5 <0.5 <0.5 NS 6820 NS
03-14-12 5.7 ND ND ND ND ND NS ND ND ND ND ND NS 7400 NS
06-07-12 8.2 ND ND ND ND ND ND NS ND ND ND ND NS 6300 NS
9/11-12/12 8.1 ND ND ND ND ND ND NS ND ND ND ND NS 3240 NS
12-12-12 3.3 ND ND ND ND ND ND NS ND ND ND ND NS 3300 NS
03-14-13 5.4 ND ND ND ND NS NS NS ND ND ND ND NS 1860 NS
05-30-13 ND ND ND ND ND NS NS ND ND ND ND ND NS 1.8 NS
09-10-13 7.2 ND ND ND ND ND NS ND ND ND ND ND NS 66.2 NS
11-07-13 ND ND ND ND ND ND NS ND ND ND ND ND NS ND NS
03-20-14 0.31 ND ND ND ND ND NS ND ND ND ND ND NS 3 NS
06-26-14 ND ND ND ND ND ND NS ND ND ND ND ND NS ND NS
08-22-14 ND ND ND ND ND ND NS ND ND ND ND ND NS ND NS
11-07-14 0.12 0.11 ND ND ND ND NS ND ND ND ND ND NS 0.22 NS
03-04-15 ND ND ND ND ND ND NS ND ND ND ND ND NS 58 NS
06-25-15 ND ND ND ND ND ND NS ND ND ND ND ND NS ND NS
9/22-23/15 ND ND ND ND ND ND NS ND ND ND ND ND NS 19 NS
12-09-15 ND ND ND ND ND ND NS ND ND ND ND ND NS ND NS
03-02-16 1.1 ND ND ND ND ND NS ND ND ND ND ND NS 20 NS
05-31-16 0.65 ND ND ND ND ND NS ND ND ND ND ND NS 1.4 NS
9/1 - 9/2/16 ND ND ND ND ND ND NS ND ND ND ND ND NS ND NS
11-28-16 2.3 NS NS NS NS NS NS NS BRL NS BRL NS NS NS NS
Ethylbenzene ug/l 03-14-07 66 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 DNE DNE DNE NS 600
06-06-07 550 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 DNE DNE DNE NS
08-29-07 760 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 DNE DNE DNE NS
12-13-07 620 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 DNE DNE DNE NS
03-14-08 580 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 DNE DNE DNE NS
06-18-08 730 <1 <1 <1 NS <1 <1 <1 <1 <1 <1 DNE DNE DNE NS
09-10-08 228 <1 <1 <1 <1 <1 <1 <1 <1 <1 <10 DNE DNE DNE NS
12-03-08 21 <1 <1 <1 <1 11 <1 <1 <1 <1 <1 DNE DNE DNE NS
03-18-09 280 <1 <1 <1 <1 16 <1 <1 <1 <1 <1 6.3 NS 930 NS
06-23-09 870 <1 <1 <1 <1 2.5 <1 <1 <1 <1 <1 <1 NS 3000 NS
09-09-09 830 <1 <1 <1 <1 2.1 NS <1 <1 NS <1 <1 NS 2300 NS
12-03-09 990 <1 <1 <1 <1 <1 <1 <1 <1 NS <1 <1 NS 2700 NS
03-24-10 720 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 NS 160 NS
06-24-10 250 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 NS 1300 NS
09-08-10 625 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 NS 215 NS
12-10-10 700 NS NS <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 NS 5.1 NS
03-08-11 307 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 NS 198 NS
06-30-11 19.7 <0.5 <0.5 <0.5 <0.5 <0.5 NS NS <0.5 <0.5 <0.5 <0.5 NS 140 NS
09-08-11 41.9 <0.5 <0.5 <0.5 <0.5 <0.5 NS NS <0.5 <0.5 <0.5 <0.5 NS 1550 NS
12-09-11 11.8 <0.5 <0.5 <0.5 <0.5 <0.5 NS <0.5 <0.5 <0.5 <0.5 <0.5 NS 1740 NS
TABLE 3
Monitoring Well Analytical Results
Incident #12913
Harold Smith Grocery
Union Ridge Road, Burlington, North Carolina
1 of 4
PARAMETER UNITS DATE MW-1/MW-3 MW-4 MW-5 MW-6*MW-7 MW-8 MW-9 MW-10 MW-11 MW-12 MW-13 MW-14 MW-15/TS-1 NCAC 2L
MW-1A MW-15A Groundwater
Standard
TABLE 3
Monitoring Well Analytical Results
Incident #12913
Harold Smith Grocery
Union Ridge Road, Burlington, North Carolina
Ethylbenzene 03-14-12 11 ND ND ND ND ND NS ND ND ND ND ND NS 2200 NS
06-07-12 15 ND ND ND ND ND ND NS ND ND ND ND NS 1900 NS
9/11-12/12 22.5 ND ND ND ND ND ND NS ND ND ND ND NS 1620 NS
12-12-12 21 ND ND ND ND ND ND NS ND ND ND ND NS 1600 NS
03-14-13 13.8 ND ND ND ND NS NS NS ND ND ND ND NS 1440 NS
05-30-13 0.58 ND ND ND ND NS NS ND ND ND ND ND NS 1.7 NS
09-10-13 7.3 ND ND ND ND ND NS ND ND ND ND ND NS 76.8 NS
11-07-13 1.6 ND ND ND ND ND NS ND ND ND ND ND NS 0.88 NS
03-20-14 1.1 ND ND ND ND ND NS ND ND ND ND ND NS 8 NS
06-26-14 ND ND ND ND ND ND NS ND ND ND ND ND NS ND NS
08-22-14 0.16 ND ND ND ND ND NS ND ND ND ND ND NS ND NS
11-07-14 ND ND ND ND ND ND NS ND ND ND ND ND NS 0.32 NS
03-04-15 ND ND ND ND ND ND NS ND ND ND ND ND NS 120 NS
06-25-15 ND ND ND ND ND ND NS ND ND ND ND ND NS ND NS
9/22-23/15 0.53 ND ND ND ND ND NS ND ND ND ND ND NS 16 NS
12-09-15 ND ND ND ND ND ND NS ND ND ND ND ND NS ND NS
03-02-16 3.9 ND ND ND ND ND NS ND ND ND ND ND NS 15 NS
05-31-16 6.3 ND ND ND ND ND NS ND ND ND ND ND NS 4.1 NS
9/1 - 9/2/16 ND ND ND ND ND ND NS ND ND ND ND ND NS ND NS
11-28-16 13 NS NS NS NS NS NS NS BRL NS BRL NS NS NS NS
Total Xylenes ug/l 03-14-07 5700 <3 <3 <3 <3 <3 <3 <3 <3 <3 <3 DNE DNE DNE NS 500
06-06-07 7000 <3 <3 <3 <3 <3 <3 <3 <3 <3 <3 DNE DNE DNE NS
08-29-07 9600 <3 <3 <3 <3 <3 <3 <3 <3 <3 <3 DNE DNE DNE NS
12-13-07 5600 <3 <3 <3 <3 <3 <3 <3 <3 <3 27 DNE DNE DNE NS
03-14-08 6200 <3 <3 <3 <3 <3 <3 <3 <3 <3 16 DNE DNE DNE NS
06-18-08 7800 <3 <3 <3 NS <3 <3 <3 <3 <3 12 DNE DNE DNE NS
09-10-08 2377 <4 <4 <4 <4 <4 <4 <4 <4 <4 <40 DNE DNE DNE NS
12-03-08 610 <3 <3 <3 <3 1810 <3 <3 <3 <3 15 DNE DNE DNE NS
03-18-09 5500 <3 <3 <3 <3 2020 <3 13.6 <3 <3 4.7 2.3 NS 7000 NS
06-23-09 9300 <3 <3 <3 <3 71 <3 <3 <3 <3 <3 <3 NS 22400 NS
09-09-09 8700 <3 <3 <3 <3 30.1 NS <3 <3 NS 3.4 <3 NS 19300 NS
12-03-09 9300 <3 <3 <3 <3 <3 <3 <3 <3 NS 5.8 <3 NS 21200 NS
03-24-10 7800 <3 <3 <3 <3 <3 <3 <3 <3 <3 <3 <3 NS 2600 NS
06-24-10 2700 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 NS 11100 NS
09-08-10 5720 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 NS 3790 NS
12-10-10 9700 NS NS <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 0.61 <1.5 NS 162 NS
03-08-11 5700 <1.5 <1.5 <1.5 <1.5 0.66 <1.5 <1.5 <1.5 <1.5 0.82 <1.5 NS 2124 NS
06-30-11 213.2 <1.5 <1.5 <1.5 <1.5 0.66 NS NS <1.5 <1.5 5.8 <1.5 NS 602 NS
09-08-11 42.4 <1.5 <1.5 <1.5 <1.5 0.66 NS NS <1.5 <1.5 11.6 <1.5 NS 3990 NS
12-09-11 48 <1.5 <1.5 <1.5 <1.5 <1.5 NS <1.5 <1.5 <1.5 0.66 <1.5 NS 5680 NS
03-14-12 44 ND ND ND ND ND NS ND ND ND ND ND NS 8300 NS
06-07-12 60 ND ND ND ND ND ND NS ND ND ND ND NS 7400 NS
9/11-12/12 73.9 ND ND ND ND ND ND NS ND ND ND ND NS 5940 NS
12-12-12 28 ND ND ND ND ND ND NS ND ND ND ND NS 7400 NS
03-14-13 44 ND ND ND ND NS NS NS ND ND ND ND NS 5600 NS
05-30-13 1.94 ND ND ND ND NS NS ND ND ND ND ND NS 7.7 NS
09-10-13 83.1 ND ND ND ND ND NS ND ND ND ND ND NS 470 NS
11-07-13 4.5 ND ND ND ND ND NS ND ND ND ND ND NS 3.76 NS
03-20-14 5.6 ND ND ND ND ND NS ND ND ND ND ND NS 32.2 NS
06-26-14 ND ND ND ND ND ND NS ND ND ND ND ND NS ND NS
08-22-14 1.13 ND ND ND ND ND NS ND ND ND ND ND NS ND NS
11-07-14 0.27 0.23 ND 0.19 0.22 0.19 NS ND ND ND ND ND NS 1.37 NS
03-04-15 3.2 ND ND ND ND ND NS ND ND ND ND ND NS 570 NS
06-25-15 ND ND ND ND ND ND NS ND ND ND ND ND NS ND NS
9/22-23/15 22.3 ND ND ND ND ND NS ND ND ND ND ND NS 250 NS
12-09-15 ND ND ND ND ND ND NS ND ND ND ND ND NS ND NS
03-02-16 107 ND ND ND ND ND NS ND ND ND ND ND NS 173 NS
05-31-16 46 ND ND ND ND ND NS ND ND ND ND ND NS 16.3 NS
9/1 - 9/2/16 ND ND ND ND ND ND NS ND ND ND ND ND NS ND NS
11-28-16 94 NS NS NS NS NS NS NS BRL NS BRL NS NS NS NS
TOTAL BTEX ug/l 03-14-07 9406 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL DNE DNE DNE NS N/A
06-06-07 13160 BDL BDL BDL 3.6 BDL BDL BDL BDL BDL 2.4 DNE DNE DNE NS
08-29-07 17000 BDL BDL BDL 2.6 BDL BDL BDL BDL BDL 6.4 DNE DNE DNE NS
12-13-07 9720 BDL BDL BDL BDL BDL BDL BDL BDL BDL 36.2 DNE DNE DNE NS
03-14-08 11430 BDL BDL BDL 24 BDL BDL BDL BDL BDL 146 DNE DNE DNE NS
06-18-08 14640 BDL BDL BDL NS BDL BDL BDL BDL BDL 17.3 DNE DNE DNE NS
09-10-08 4455 BDL BDL BDL 11.6 BDL 2.72 BDL BDL BDL 69.5 DNE DNE DNE NS
12-03-08 677 BDL BDL BDL 8.7 1993 5.3 BDL BDL BDL 56 DNE DNE DNE NS
03-18-09 9090 BDL 1.9 BDL BDL 2091.9 2.9 13.6 BDL BDL 8.3 8.6 NS 20450 NS
06-23-09 16160 BDL BDL BDL BDL 74.16 2.9 BDL BDL BDL BDL BDL NS 42610 NS
09-09-09 14020 BDL BDL BDL BDL 32.86 NS BDL BDL NS 8.5 BDL NS 47510 NS
12-03-09 14370 BRL BRL BRL BRL BRL BRL BRL BRL NS 13.3 BRL NS 54340 NS
03-24-10 11740 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL NS 4415 NS
06-24-10 3620 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL NS 19398 NS
09-08-10 7504.7 BRL BRL BRL BRL BRL BRL BRL BRL BRL 1.1 BRL NS 5672.5 NS
12-10-10 13640 NS NS BRL BRL BRL BRL BRL BRL BRL 1.91 BRL NS 266.5 NS
03-08-11 7517 ND ND ND ND 0.66 ND ND ND ND 0.82 ND NS 4314 NS
06-30-11 280.8 ND ND ND ND 0.66 NS NS ND ND 5.8 ND NS 1419.1 NS
09-08-11 108.4 ND ND ND ND 0.66 NS NS ND ND 13.3 ND NS 11622 NS
12-09-11 81.1 ND ND ND ND ND NS ND ND ND 1.27 ND NS 14624 NS
03-14-12 80.7 ND ND ND ND ND NS ND ND ND ND ND NS 18190 NS
06-07-12 111.2 ND ND ND ND ND ND NS ND ND ND ND NS 15820 NS
9/11-12/12 134.6 ND ND ND ND ND ND NS ND ND 1.2 ND NS 10932 NS
12-12-12 71.3 ND ND ND ND 0.2 ND NS ND ND 0.81 ND NS 12391 NS
03-14-13 83.6 ND ND ND ND NS NS NS ND ND ND ND NS 8982.8 NS
05-30-13 3.35 ND ND ND ND NS NS ND ND ND ND ND NS 11.2 NS
09-10-13 103.1 ND ND ND ND ND NS ND ND ND ND ND NS 617.4 NS
11-07-13 6.6 ND ND ND ND ND NS ND ND ND ND ND NS 4.64 NS
03-20-14 7.19 ND ND ND ND ND NS ND ND ND ND ND NS 40.49 NS
06-26-14 ND ND ND ND ND ND NS ND ND ND ND ND NS ND NS
08-22-14 1.29 ND ND ND ND ND NS ND ND ND ND ND NS ND NS
11-07-14 0.54 0.34 ND 0.19 0.37 0.19 NS ND ND ND ND ND NS 1.91 NS
03-04-15 3.2 ND ND ND ND ND NS ND ND ND ND ND NS 749.1 NS
06-25-15 ND ND ND ND ND ND NS ND ND ND ND ND NS ND NS
9/22-23/15 24.03 ND ND ND ND ND NS ND ND ND ND ND NS 285 NS
12-09-15 ND ND ND ND ND ND NS ND ND ND ND ND NS ND NS
03-02-16 134 ND ND ND ND ND NS ND ND ND ND ND NS 208.82 NS
05-31-16 62.95 ND ND ND ND ND NS ND ND ND ND ND NS 21.8 NS
9/1 - 9/2/16 ND ND ND ND ND ND NS ND ND ND ND ND NS ND NS
11-28-16 147.3 NS NS NS NS NS NS NS BRL NS BRL NS NS NS NS
2 of 4
PARAMETER UNITS DATE MW-1/MW-3 MW-4 MW-5 MW-6*MW-7 MW-8 MW-9 MW-10 MW-11 MW-12 MW-13 MW-14 MW-15/TS-1 NCAC 2L
MW-1A MW-15A Groundwater
Standard
TABLE 3
Monitoring Well Analytical Results
Incident #12913
Harold Smith Grocery
Union Ridge Road, Burlington, North Carolina
Methyl Tertiary ug/l 03-14-07 <50 <5 10 <5 4.3J <5 <5 <5 <5 <5 2.7J DNE DNE DNE NS 20
Butyl Ether 06-06-07 <50 19 7.5 <5 5.9 <5 4.9J <5 <5 <5 4.1J DNE DNE DNE NS
(MTBE)08-29-07 <50 73 4.6J <5 7.1 <5 <5 <5 <5 <5 4.1J DNE DNE DNE NS
12-13-07 <50 97 20 <5 8.5 <5 <5 <5 <5 <5 13 DNE DNE DNE NS
03-14-08 <50 10 6.9 <5 16 <5 <5 <5 <5 <5 74 DNE DNE DNE NS
06-18-08 <50 26 27 <5 NS <5 <5 <5 <5 <5 15 DNE DNE DNE NS
09-10-08 <200 2.3 <2 <2 6.39 <2 <2 <2 <2 <2 38.1 DNE DNE DNE NS
12-03-08 <5 2.8J 8.9 <5 9.3 5.1 <5 <5 <5 <5 75 DNE DNE DNE NS
03-18-09 <50 <5 <5 <5 <5 8.2 <5 8.3 <5 <5 25 <0.5 NS <50 NS
06-23-09 <50 <5 5.4 <5 <5 3.3J <5 <5 <5 <5 11 <5 NS <50 NS
09-09-09 <50 <5 7.7 <5 <5 2.6J NS <5 <5 NS 44 <5 NS <200 NS
12-03-09 <50 <5 4J <5 <5 <5 <5 <5 <5 NS 92 <5 NS <200 NS
03-24-10 <50 <5 13 <5 <5 <5 <5 <5 <5 <5 3.3J <5 NS <200 NS
06-24-10 <50 <1 4.2 <1 <1 1.5 <1 <1 <1 <1 13 <1 NS <40 NS
09-08-10 <2.5 <0.5 1.7 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 45.8 <0.5 NS <5 NS
12-10-10 <10 NS NS <1 <1 <1 <1 <1 <1 <1 57 <1 NS <1 NS
03-08-11 <10 <0.5 1.6 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 19.1 <0.5 NS <10 NS
06-30-11 2.7 <0.5 0.83 <0.5 <0.5 <0.5 NS NS 0.51 <0.5 23.8 <0.5 NS <0.5 NS
09-08-11 12.3 <0.5 <0.5 <0.5 <0.5 <0.5 NS NS 0.54 <0.5 54.7 <0.5 NS 2.9 NS
12-09-11 9.2 <0.5 <0.5 <0.5 <0.5 <0.5 NS <0.5 0.52 <0.5 28.5 <0.5 NS <25 NS
03-14-12 9.6 ND 0.5 ND 0.25J ND NS ND 0.84 ND 10 ND NS ND NS
06-07-12 ND ND ND ND ND ND ND NS 1.7 ND 15 ND NS ND NS
9/11-12/12 21.4 ND ND ND ND ND ND NS 2.2 ND 33.8 ND NS ND NS
12-12-12 21 ND ND ND 0.19J ND ND NS 0.32J ND 24 ND NS ND NS
03-14-13 21.3 ND ND ND ND NS NS NS ND ND 8.4 ND NS ND NS
05-30-13 9.4 ND ND ND ND NS NS ND 0.8 ND 2 ND NS 0.61 NS
09-10-13 14.4 ND ND ND ND ND NS ND 2.9 ND 1.9 ND NS ND NS
11-07-13 9.4 ND ND ND ND ND NS ND 2.2 ND 1.2 ND NS ND NS
03-20-14 8.6 ND 0.35 ND 0.16 ND NS 1.1 0.12 ND 1.8 ND NS 0.2 NS
06-26-14 0.25 ND 0.32 ND 0.53 0.24 NS 0.3 3.2 ND 0.66 ND NS ND NS
08-22-14 4.1 ND ND ND ND ND NS 0.25 1.3 ND 0.57 ND NS ND NS
11-07-14 0.79 ND ND ND ND ND NS 1.4 1.5 ND 0.46 ND NS ND NS
03-04-15 4.6 ND ND ND 0.60J ND NS 1.6 ND ND 0.80J ND NS ND NS
06-25-15 3.9 ND ND ND 0.75J ND NS ND 0.67J ND 0.68J ND NS ND NS
9/22-23/15 6.2 ND ND ND 1 ND NS ND ND ND ND ND NS ND NS
12-09-15 1.7 ND ND ND 1.9 ND NS ND ND ND ND ND NS ND NS
03-02-16 8.5 ND ND ND 1.4 ND NS ND ND ND 1.4 ND NS ND NS
05-31-16 16 ND ND ND 1.2 ND NS ND ND 0.72J ND ND NS ND NS
9/1 - 9/2/16 7.1 ND ND ND ND ND NS ND ND ND ND ND NS ND NS
11-28-16 13 NS NS NS NS NS NS NS BRL NS BRL NS NS NS NS
Ethylene ug/l 03-14-07 <10 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 DNE DNE DNE NS 0.02
Dibromide 06-06-07 <10 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 DNE DNE DNE NS
(EDB)08-29-07 <10 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 DNE DNE DNE NS
12-13-07 <10 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 DNE DNE DNE NS
03-14-08 <10 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 DNE DNE DNE NS
06-18-08 <10 <1 <1 <1 NS <1 <1 <1 <1 <1 <1 DNE DNE DNE NS
09-10-08 <2 <1 <1 <1 <1 <1 <1 <1 <1 <1 <2 DNE DNE DNE NS
12-03-08 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 DNE DNE DNE NS
03-18-09 <10 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <0.5 NS <50 NS
06-23-09 <10 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 NS <50 NS
09-09-09 <10 <1 <1 <1 <1 <1 NS <1 <1 NS <1 <1 NS <40 NS
12-03-09 <10 <1 <1 <1 <1 <1 <1 <1 <1 NS <1 <1 NS <40 NS
03-24-10 <10 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 NS <40 NS
06-24-10 14 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 NS 28 NS
09-08-10 <2.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 NS <5 NS
12-10-10 <5 NS NS <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 NS 3.9 NS
03-08-11 <10 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 NS <10 NS
06-30-11 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 NS NS <0.5 <0.5 <0.5 <0.5 NS 1.9 NS
09-08-11 <1.2 <0.5 <0.5 <0.5 <0.5 <0.5 NS NS <0.5 <0.5 <0.5 <0.5 NS 7 NS
12-09-11 <1 <0.5 <0.5 <0.5 <0.5 <0.5 NS <0.5 <0.5 <0.5 <0.5 <0.5 NS <25 NS
03-14-12 ND ND ND ND ND ND NS ND ND ND ND ND NS ND NS
06-07-12 ND ND ND ND ND ND ND NS ND ND ND ND NS ND NS
9/11-12/12 ND ND ND ND ND ND ND NS ND ND ND ND NS ND NS
12-12-12 ND ND ND ND ND ND ND NS ND ND ND ND NS ND NS
03-14-13 ND ND ND ND ND NS NS NS ND ND ND ND NS ND NS
05-30-13 ND ND ND ND ND NS NS ND ND ND ND ND NS ND NS
09-10-13 ND ND ND ND ND ND NS ND ND ND ND ND NS ND NS
11-07-13 ND ND ND ND ND ND NS ND ND ND ND ND NS ND NS
03-20-14 ND ND ND ND ND ND NS ND ND ND ND ND NS ND NS
06-26-14 ND ND ND ND ND ND NS ND ND ND ND ND NS ND NS
08-22-14 ND ND ND ND ND ND NS ND ND ND ND ND NS ND NS
11-07-14 ND ND ND ND ND ND NS ND ND ND ND ND NS ND NS
03-04-15 ND ND ND ND ND ND NS ND ND ND ND ND NS ND NS
06-25-15 ND ND ND ND ND ND NS ND ND ND ND ND NS ND NS
9/22-23/15 ND ND ND ND ND ND NS ND ND ND ND ND NS ND NS
12-09-15 ND ND ND ND ND ND NS ND ND ND ND ND NS ND NS
03-02-16 ND ND ND ND ND ND NS ND ND ND ND ND NS ND NS
05-31-16 ND ND ND ND ND ND NS ND ND ND ND ND NS ND NS
9/1 - 9/2/16 ND ND ND ND ND ND NS ND ND ND ND ND NS ND NS
11-28-16 NS NS NS NS NS NS NS NS BRL NS BRL NS NS NS NS
Isopropyl Ether ug/l 03-14-08 86 <5 3J <5 9.9 <5 <5 <5 <5 <5 270 DNE DNE DNE NS 70
(IPE)06-18-08 <50 <5 13 <5 NS <5 <5 <5 <5 <5 19 DNE DNE DNE NS
09-10-08 <100 <1 <1 <1 9.28 <1 <1 <1 <1 <1 221 DNE DNE DNE NS
12-03-08 15 <5 4.6J <5 6.9 23 <5 8.1 <5 <5 200 DNE DNE DNE NS
03-18-09 <50 <5 <5 <5 <5 19 <5 10 <5 <5 69 <0.5 NS <50 NS
06-23-09 <50 <5 <5 <5 <5 6.2 <5 <5 <5 <5 10 <5 NS <50 NS
09-09-09 <50 <5 3.3J <5 <5 4.9J NS <5 <5 NS 73 <5 NS <200 NS
12-03-09 <50 <5 <5 <5 <5 <5 <5 <5 <5 NS 180 <5 NS <200 NS
03-24-10 <50 <5 5.9 <5 <5 <5 <5 <5 <5 <5 3.2J <5 NS <200 NS
06-24-10 <5 <0.5 1.8 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 12 <0.5 NS <20 NS
09-08-10 2.9 <0.5 0.66 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 35.9 <0.5 NS <5 NS
12-10-10 6 NS NS <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 49 <0.5 NS 1.3 NS
03-08-11 <10 <0.5 <0.5 <0.5 <0.5 0.56 <0.5 <0.5 0.82 <0.5 24.6 <0.5 NS <10 NS
06-30-11 13 <0.5 <0.5 <0.5 <0.5 0.56 NS NS 1.2 <0.5 29.2 <0.5 NS 2.7 NS
09-08-11 62.2 <0.5 <0.5 <0.5 <0.5 0.56 NS NS 0.73 <0.5 55.2 <0.5 NS 22.5 NS
3 of 4
PARAMETER UNITS DATE MW-1/MW-3 MW-4 MW-5 MW-6*MW-7 MW-8 MW-9 MW-10 MW-11 MW-12 MW-13 MW-14 MW-15/TS-1 NCAC 2L
MW-1A MW-15A Groundwater
Standard
TABLE 3
Monitoring Well Analytical Results
Incident #12913
Harold Smith Grocery
Union Ridge Road, Burlington, North Carolina
Isopropyl Ether 12-09-11 40.9 <0.5 <0.5 <0.5 <0.5 <0.5 NS <0.5 <0.5 <0.5 29.1 <0.5 NS <25 NS
(IPE)03-14-12 47 ND ND ND ND ND NS ND 0.17J ND 11 ND NS ND NS
06-07-12 78 ND ND ND ND ND ND NS 0.52J ND 12 ND NS 15J NS
9/11-12/12 94.8 ND ND ND ND ND ND NS 1.6 ND 29.8 ND NS 13.5 NS
12-12-12 120 ND ND ND 0.16J ND ND NS 1.6 ND 26 ND NS ND NS
03-14-13 112 ND ND ND ND NS NS NS ND ND 10.2 ND NS ND NS
05-30-13 32.5 ND ND ND ND NS NS 3.1 1.5 ND ND ND NS 1.5 NS
09-10-13 80.7 ND ND ND ND ND NS 3.1 6.9 ND ND ND NS 7.2 NS
11-07-13 42.2 ND ND ND ND ND NS ND 3.1 1.9 ND ND NS 0.79 NS
03-20-14 46 ND ND ND 0.2 ND NS ND 3.1 1.9 0.34 ND NS 1.5 NS
06-26-14 ND ND ND ND 1.4 ND NS ND 3.3 3.1 ND ND NS ND NS
08-22-14 11 ND ND ND 0.24 ND NS ND 2.1 3.1 ND ND NS ND NS
11-07-14 2 ND ND ND ND ND NS ND 1.1 ND ND ND NS ND NS
03-04-15 27 ND ND ND ND ND NS ND ND ND 0.5 ND NS ND NS
06-25-15 11 ND ND ND ND ND NS ND 0.59 ND ND ND NS ND NS
9/22-23/15 32 ND ND ND ND ND NS ND ND ND ND ND NS ND NS
12-09-15 6 ND ND ND ND ND NS ND ND 1.9 ND ND NS ND NS
03-02-16 75 ND ND ND ND ND NS ND ND ND 1.1 ND NS ND NS
05-31-16 120 E ND ND ND ND ND NS ND ND 4.5 ND ND NS ND NS
9/1 - 9/2/16 51 ND ND ND ND ND NS ND ND ND ND ND NS ND NS
11-28-16 94 NS NS NS NS NS NS NS BRL NS BRL NS NS NS NS
1,2-Dichloroethane ug/l 03-14-07 <10 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 DNE DNE DNE NS 0.4
06-06-07 <10 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 DNE DNE DNE NS
08-29-07 <10 <1 <1 <1 <1 <1 <1 <1 1.4 <1 1.3 DNE DNE DNE NS
12-13-07 <10 <1 <1 <1 <1 <1 <1 <1 <1 <1 1.5 DNE DNE DNE NS
03-14-08 <10 <1 <1 <1 <1 <1 <1 <1 <1 <1 31 DNE DNE DNE NS
06-18-08 <10 <1 1.3 <1 NS <1 <1 <1 <1 <1 2.8 DNE DNE DNE NS
09-10-08 <2 <1 <1 <1 <1 <1 <1 <1 <1 <1 29.3 DNE DNE DNE NS
12-03-08 <1 <1 <1 <1 <1 4 <1 0.76J <1 <1 30 DNE DNE DNE NS
03-18-09 <10 <1 <1 <1 <1 2.1 <1 1.5 <1 <1 4.5 <0.5 NS <50 NS
06-23-09 <10 <1 <1 <1 <1 <1 <1 <1 <1 <1 0.69J <1 NS <50 NS
09-09-09 <10 <1 <1 <1 <1 0.64J NS <1 <1 NS 8.6 <1 NS <40 NS
12-03-09 <10 <1 <1 <1 <1 <1 <1 <1 <1 NS 13 <1 NS <40 NS
03-24-10 <10 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 NS <40 NS
06-24-10 <5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 2.8 <0.5 <0.5 NS <20 NS
09-08-10 <2.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 6.9 <0.5 NS <5 NS
12-10-10 <5 NS NS <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 11 <0.5 NS <0.5 NS
03-08-11 <10 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 7.1 <0.5 NS <10 NS
06-30-11 1.1 <0.5 <0.5 <0.5 <0.5 <0.5 NS NS <0.5 <0.5 9.1 <0.5 NS 0.58 NS
09-08-11 4.5 <0.5 <0.5 <0.5 <0.5 <0.5 NS NS <0.5 <0.5 10.9 <0.5 NS 4 NS
12-09-11 4.1 <0.5 <0.5 <0.5 <0.5 <0.5 NS <0.5 <0.5 <0.5 7.1 <0.5 NS <25 NS
03-14-12 ND ND ND ND ND ND NS ND 0.33J ND 3.6 ND NS ND NS
06-07-12 ND ND ND ND ND ND ND NS ND ND 4 ND NS ND NS
9/11-12/12 13.7 ND ND ND ND ND ND NS 0.67 ND 5.9 ND NS ND NS
12-12-12 15 ND ND ND ND ND ND NS ND ND 0.81 ND NS 4.9 NS
03-14-13 14.2 ND ND ND ND NS NS NS 0.72 ND 3.3 ND NS ND NS
05-30-13 4.2 ND ND ND ND NS NS ND 1.1 ND 0.53 ND NS ND NS
09-10-13 9.2 ND ND ND ND ND NS ND 2.4 ND 0.51 ND NS 0.6 NS
11-07-13 4.1 ND ND ND ND ND NS ND 2.2 ND ND ND NS ND NS
03-20-14 4.8 ND ND ND 0.23 ND NS ND 3.2 ND ND ND NS ND NS
06-26-14 ND ND ND ND 0.32 ND NS ND 1.4 0.63 ND ND NS ND NS
08-22-14 2 ND ND ND ND ND NS ND 1.2 0.84 ND ND NS ND NS
11-07-14 ND ND ND ND ND ND NS ND 0.69 ND ND ND NS ND NS
03-04-15 2.7 ND ND ND ND ND NS ND ND ND ND ND NS ND NS
06-25-15 1.6 ND ND ND ND ND NS ND ND 0.53 ND ND NS ND NS
9/22-23/15 3.7 ND ND ND ND ND NS ND ND ND ND ND NS ND NS
12-09-15 1.2 ND ND ND ND ND NS ND ND 0.61 ND ND NS ND NS
03-02-16 7.3 ND ND ND ND ND NS ND ND 1 ND ND NS ND NS
05-31-16 11 ND ND ND ND ND NS ND ND 1 ND ND NS ND NS
9/1 - 9/2/16 ND ND ND ND ND ND NS ND ND ND ND ND NS ND NS
11-28-16 7.8 NS NS NS NS NS NS NS BRL NS BRL NS NS NS NS
Naphthalene ug/l 03-14-08 470 <1 <1 <1 <1 <1 <1 <1 <1 <1 4.5 DNE DNE DNE NS 6
06-18-08 590 <1 <1 <1 NS <1 <1 <1 <1 <1 <1 DNE DNE DNE NS
09-10-08 136 <1 <1 <1 <1 <1 <1 <1 <1 <1 <10 DNE DNE DNE NS
12-03-08 31 <1 <1 <1 <1 <1 <1 <1 <1 <1 3.5 DNE DNE DNE NS
03-18-09 250 <1 1.9 <1 <1 <1 <1 1.6 <1 <1 <1 6.2 NS 490 NS
06-23-09 470 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 NS 950 NS
09-09-09 540 <1 <1 <1 <1 <1 NS <1 <1 NS <1 <1 NS 680 NS
12-03-09 490 <1 <1 <1 <1 <1 <1 <1 <1 NS <1 <1 NS 750 NS
03-24-10 550 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 NS 220 NS
06-24-10 680 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 NS 580 NS
09-08-10 736 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 NS 255 NS
12-10-10 520 NS NS <1 <1 <1 <1 <1 <1 <1 <1 <1 NS 7.1 NS
03-08-11 337 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 NS 118 NS
06-30-11 54.1 <2 <2 <2 <2 <2 NS NS <2 <2 3 <2 NS 41.6 NS
09-08-11 154 <2 <2 <2 <2 <2 NS NS <2 <2 5.9 <2 NS 395 NS
12-09-11 112 <2 <2 <2 <2 <2 NS <2 <2 <2 <2 <2 NS 504 NS
03-14-12 87 ND ND ND ND ND NS ND ND ND ND ND NS 130J NS
06-07-12 84 ND ND ND ND ND ND NS ND ND ND ND NS 150 NS
9/11-12/12 197 ND ND ND ND ND ND NS ND ND ND ND NS 515 NS
12-12-12 99 ND ND ND ND ND ND NS ND ND ND ND NS 250 NS
03-14-13 84.6 ND ND ND ND NS NS NS ND ND ND ND NS 344 NS
05-30-13 3.4 ND ND ND ND NS NS ND ND ND ND ND NS ND NS
09-10-13 18 ND ND ND ND ND NS ND ND ND ND ND NS 2.3 NS
11-07-13 ND ND ND ND ND ND NS ND ND ND ND ND NS ND NS
03-20-14 2.5 ND ND ND ND ND NS ND ND ND ND ND NS ND NS
06-26-14 ND ND ND ND ND ND NS ND ND ND ND ND NS ND NS
08-22-14 0.66 ND ND ND ND ND NS ND ND ND ND ND NS ND NS
11-07-14 ND ND ND ND ND ND NS ND ND ND ND ND NS ND NS
03-04-15 0.73J ND ND ND ND ND NS ND ND ND ND ND NS 33 NS
06-25-15 0.99J ND ND ND ND ND NS ND ND ND ND ND NS ND NS
9/22-23/15 3.2 ND ND ND ND ND NS ND ND ND ND ND NS 16 NS
12-09-15 ND ND ND ND ND ND NS ND ND ND ND ND NS ND NS
03-02-16 47 0.79J ND ND ND ND NS ND ND ND ND ND NS 30 NS
05-31-16 16 ND ND ND ND ND NS ND ND ND ND ND NS 0.92J NS
9/1 - 9/2/16 ND ND ND ND ND ND NS ND ND ND ND ND NS ND NS
11-28-16 75 NS NS NS NS NS NS NS BRL NS BRL NS NS NS NS
NA=Not Analyzed for Parameter DNE=Did Not Exist Bold Values exceed the NCAC 2L Groundwater Standard J=Estimated ValueNS=Not Sampled BDL=Below Detection Limits ND=Not Detected E=Estimated concentration above calibration range
BRL=Below Reporting Limits
4 of 4
PARAMETER UNITS DATE NCAC 15A:2L
2768B 2774 2760 2773 2755 2761 2779 2765 2765 2765 2800 Groundwater
Influent Midfluent Effluent Standard
Benzene ug/l 03-24-10 <0.5 NS NS NS NS NS NS 1.7 <0.5 <0.5 NS
06-24-10 NS NS NS <0.5 NS NS NS <0.5 <0.5 <0.5 NS
09-08-10 NS NS NS <0.5 NS NS NS 1 <0.5 <0.5 NS
12-10-10 NS NS NS <0.5 NS NS NS 0.97 <0.5 <0.5 NS 1
03-08-11 NS NS NS <0.5 NS NS <0.5 1.6 <0.5 <0.5 NS
06-30-11 NS NS NS <0.5 NS NS <0.5 8.4 <0.5 <0.5 NS
09-08-11 NS NS NS <0.5 NS NS <0.5 7.1 <0.5 <0.5 NS
12-09-11 NS NS NS <0.5 NS NS <0.5 3.3 <0.5 <0.5 NS
03-14-12 NS NS NS ND NS NS ND NS NS NS NS
06-07-12 NS NS NS ND NS NS ND NS NS NS NS
9/11-12/2012 NS NS NS ND NS NS ND ND NS ND NS
12-12-12 NS NS NS ND NS NS ND ND NS ND NS
03-14-13 ND NS NS ND NS NS ND ND NS ND NS
05-29-13 ND NS NS ND NS NS ND ND NS ND NS
09-10-13 ND NS NS ND NS NS ND ND NS ND NS
11-07-13 ND NS NS ND NS NS ND ND NS ND NS
09-20-14 ND NS NS ND NS NS ND ND ND ND NS
06-26-14 ND NS ND ND NS NS ND 0.33 ND ND NS
08-22-14 ND NS ND ND NS NS ND 0.54 ND ND NS
11-07-14 ND NS ND ND NS NS ND ND ND ND NS
03-04-15 NS NS ND ND NS NS ND ND ND ND NS
06-25-15 ND NS ND ND NS NS ND ND ND ND NS
09-23-15 ND NS ND ND NS NS ND ND ND ND NS
12-09-15 ND NS ND ND NS NS ND ND ND ND NS
02-29-16 ND ND ND ND NS NS ND ND ND ND NS
06-01-16 ND ND ND ND NS NS ND ND ND ND NS
09-02-16 ND ND ND ND NS NS ND ND ND ND NS
11-28-16 BRL BRL NS ND NS NS BRL ND BRL BRL NS
Toluene ug/l 03-24-10 <1 NS NS NS NS NS NS <1 <1 <1 NS
06-24-10 NS NS NS <0.5 NS NS NS <0.5 <0.5 <0.5 NS
09-08-10 NS NS NS <0.5 NS NS NS <0.5 <0.5 <0.5 NS
12-10-10 NS NS NS <0.5 NS NS NS <0.5 <0.5 <0.5 NS 600
03-08-11 NS NS NS <0.5 NS NS <0.5 <0.5 <0.5 <0.5 NS
06-30-11 NS NS NS <0.5 NS NS <0.5 <1 <0.5 <0.5 NS
09-08-11 NS NS NS <0.5 NS NS <0.5 <1 <0.5 <0.5 NS
12-09-11 NS NS NS <0.5 NS NS <0.5 <1 <0.5 <0.5 NS
03-14-12 NS NS NS ND NS NS ND NS NS NS NS
06-07-12 NS NS NS ND NS NS ND NS NS NS NS
9/11-12/2012 NS NS NS ND NS NS ND ND NS ND NS
12-12-12 NS NS NS ND NS NS ND ND NS ND NS
03-14-13 ND NS NS ND NS NS ND ND NS ND NS
05-29-13 ND NS NS ND NS NS ND ND NS ND NS
09-10-13 ND NS NS ND NS NS ND ND NS ND NS
11-07-13 ND NS NS ND NS NS ND ND NS ND NS
03-20-14 ND NS NS ND NS NS ND ND ND ND NS
06-26-14 ND NS ND ND NS NS ND ND ND ND NS
08-22-14 ND NS ND ND NS NS ND ND ND ND NS
11-07-14 ND NS ND ND NS NS ND ND ND ND NS
03-04-15 NS NS ND ND NS NS ND ND ND ND NS
06-25-15 ND NS ND ND NS NS ND ND ND ND NS
09-23-15 ND NS ND ND NS NS ND ND ND ND NS
12-09-15 ND NS ND ND NS NS ND ND ND ND NS
02-29-16 ND ND ND ND NS NS ND ND ND ND NS
06-01-16 ND ND ND ND NS NS ND ND ND ND NS
09-02-16 ND ND ND ND NS NS ND ND ND ND NS
11-28-16 BRL BRL NS ND NS NS BRL ND BRL BRL NS
Ethylbenzene ug/l 03-24-10 <1 NS NS NS NS NS NS <1 <1 <1 NS
06-24-10 NS NS NS <0.5 NS NS NS <0.5 <0.5 <0.5 NS
09-08-10 NS NS NS <0.5 NS NS NS <0.5 <0.5 <0.5 NS
12-10-10 NS NS NS <0.5 NS NS NS <0.5 <0.5 <0.5 NS 600
03-08-11 NS NS NS <0.5 NS NS <0.5 <0.5 <0.5 <0.5 NS
06-30-11 NS NS NS <0.5 NS NS <0.5 <1 <0.5 <0.5 NS
09-08-11 NS NS NS <0.5 NS NS <0.5 <1 <0.5 <0.5 NS
12-09-11 NS NS NS <0.5 NS NS <0.5 <1 <0.5 <0.5 NS
03-14-12 NS NS NS ND NS NS ND NS NS NS NS
06-07-12 NS NS NS ND NS NS ND NS NS NS NS
9/11-12/2012 NS NS NS ND NS NS ND ND NS ND NS
12-12-12 NS NS NS ND NS NS ND ND NS ND NS
03-14-13 ND NS NS ND NS NS ND ND NS ND NS
05-29-13 ND NS NS ND NS NS ND 0.55 NS ND NS
09-10-13 ND NS NS ND NS NS ND ND NS ND NS
11-07-13 ND NS NS ND NS NS ND ND NS ND NS
03-20-14 ND ND ND ND NS NS ND ND ND ND NS
06-26-14 ND NS ND ND NS NS ND ND ND ND NS
08-22-14 ND NS ND ND NS NS ND 0.26 ND ND NS
11-07-14 ND NS ND ND NS NS ND ND ND ND NS
03-04-15 NS NS ND ND NS NS ND ND ND ND NS
06-25-15 ND NS ND ND NS NS ND ND ND ND NS
09-23-15 ND NS ND ND NS NS ND ND ND ND NS
12-09-15 ND NS ND ND NS NS ND ND ND ND NS
02-29-16 ND ND ND ND NS NS ND ND ND ND NS
06-01-16 ND ND ND ND NS NS ND ND ND ND NS
09-02-16 ND ND ND ND NS NS ND ND ND ND NS
11-28-16 BRL BRL NS ND NS NS BRL ND BRL BRL NS
SUPPLY WELL
Union Ridge Road, Burlington, North Carolina
TABLE 4
Water Supply Well Analytical Results
Harold Smith Grocery
Incident #12913
Page 1 of 4
PARAMETER UNITS DATE NCAC 15A:2L
2768B 2774 2760 2773 2755 2761 2779 2765 2765 2765 2800 Groundwater
Influent Midfluent Effluent Standard
SUPPLY WELL
Union Ridge Road, Burlington, North Carolina
TABLE 4
Water Supply Well Analytical Results
Harold Smith Grocery
Incident #12913
Total Xylenes ug/l 03-24-10 <3 NS NS NS NS NS NS <3 <3 <3 NS
06-24-10 NS NS NS <1.5 NS NS NS <1.5 <1.5 <1.5 NS
09-08-10 NS NS NS <1.5 NS NS NS <1.5 <1.5 <1.5 NS
12-10-10 NS NS NS <1.5 NS NS NS <1.5 <1.5 <1.5 NS 500
03-08-11 NS NS NS <1.5 NS NS <1.5 <1.5 <1.5 <1.5 NS
06-30-11 NS NS NS <1.5 NS NS <1.5 <3 <1.5 <1.5 NS
09-08-11 NS NS NS <1.5 NS NS <1.5 <3 <1.5 <1.5 NS
12-09-11 NS NS NS <1.5 NS NS <1.5 <3 <1.5 <1.5 NS
03-14-12 NS NS NS ND NS NS ND NS NS NS NS
06-07-12 NS NS NS ND NS NS ND NS NS NS NS
9/11-12/2012 NS NS NS ND NS NS ND ND NS ND NS
12-12-12 NS NS NS ND NS NS ND ND NS ND NS
03-14-13 ND NS NS ND NS NS ND ND NS ND NS
05-29-13 ND NS NS ND NS NS ND ND NS ND NS
09-10-13 ND NS NS ND NS NS ND ND NS ND NS
11-07-13 ND NS NS ND NS NS ND ND NS ND NS
03-20-14 ND ND ND ND NS NS ND ND ND ND NS
06-26-14 ND NS ND ND NS NS ND ND ND ND NS
08-22-14 ND NS ND ND NS NS ND ND ND ND NS
11-07-14 ND NS ND ND NS NS ND ND ND ND NS
03-04-15 NS NS ND ND NS NS ND ND ND ND NS
06-25-15 ND NS ND ND NS NS ND ND ND ND NS
09-23-15 ND NS ND ND NS NS ND ND ND ND NS
12-09-15 ND NS ND ND NS NS ND ND ND ND NS
02-29-16 ND ND ND ND NS NS ND ND ND ND NS
06-01-16 ND ND ND ND NS NS ND ND ND ND NS
09-02-16 ND ND ND ND NS NS ND ND ND ND NS
11-28-16 BRL BRL NS ND NS NS BRL ND BRL BRL NS
TOTAL BTEX ug/l 03-24-10 BDL NS NS NS NS NS NS 1.7 BDL BDL NS
06-24-10 NS NS NS BDL NS NS NS BDL BDL BDL NS
09-08-10 NS NS NS BDL NS NS NS 1 BDL BDL NS
12-10-10 NS NS NS BDL NS NS NS 0.97 <0.5 <0.5 NS N/A
03-08-11 NS NS NS BDL NS NS BDL 1.6 BDL BDL NS
06-30-11 NS NS NS BDL NS NS BDL 8.4 BDL BDL NS
09-08-11 NS NS NS BDL NS NS BDL 7.1 BDL BDL NS
12-09-11 NS NS NS BDL NS NS BDL 3.3 BDL BDL NS
03-14-12 NS NS NS ND NS NS ND NS NS NS NS
06-07-12 NS NS NS ND NS NS ND NS NS NS NS
9/11-12/2012 NS NS NS ND NS NS ND ND NS ND NS
12-12-12 NS NS NS ND NS NS ND ND NS ND NS
03-14-13 ND NS NS ND NS NS ND ND NS ND NS
05-29-13 ND NS NS ND NS NS ND 0.55 NS ND NS
09-10-13 ND NS NS ND NS NS ND ND NS ND NS
11-07-13 ND NS NS ND NS NS ND ND NS ND NS
03-20-14 ND ND ND ND NS NS ND ND ND ND NS
06-26-14 ND NS ND ND NS NS ND 0.33 ND ND NS
08-22-14 ND NS ND ND NS NS ND 0.8 ND ND NS
11-07-14 ND NS ND ND NS NS ND ND ND ND NS
03-04-15 NS NS ND ND NS NS ND ND ND ND NS
06-25-15 ND NS ND ND NS NS ND ND ND ND NS
09-23-15 ND NS ND ND NS NS ND ND ND ND NS
12-09-15 ND NS ND ND NS NS ND ND ND ND NS
02-29-16 ND ND ND ND NS NS ND ND ND ND NS
06-01-16 ND ND ND ND NS NS ND ND ND ND NS
09-02-16 ND ND ND ND NS NS ND ND ND ND NS
11-28-16 BRL BRL NS ND NS NS BRL ND BRL BRL NS
Methyl Tertiary ug/l 03-24-10 22 NS NS NS NS NS NS 98 <5 <5 NS
Butyl Ether 06-24-10 NS NS NS <1 NS NS NS <1 <1 <1 NS
(MTBE)09-08-10 NS NS NS <1 NS NS NS 84.8 <1 <1 NS
12-10-10 NS NS NS <1 NS NS NS 100 <1 <1 NS 20
03-08-11 NS NS NS <0.5 NS NS <0.5 166 <0.5 <0.5 NS
06-30-11 NS NS NS <0.5 NS NS <0.5 125 <0.5 <0.5 NS
09-08-11 NS NS NS <0.5 NS NS <0.5 136 <0.5 <0.5 NS
12-09-11 NS NS NS <0.5 NS NS <0.5 150 <0.5 <0.5 NS
03-14-12 NS NS NS ND NS NS ND NS NS NS NS
06-07-12 NS NS NS ND NS NS ND NS NS NS NS
9/11-12/2012 NS NS NS ND NS NS ND 149 NS ND NS
12-12-12 NS NS NS ND NS NS ND 140 NS ND NS
03-14-13 ND NS NS ND NS NS ND 157 NS ND NS
05-29-13 ND NS NS ND NS NS ND 150 NS ND NS
09-10-13 ND NS NS ND NS NS ND 128 NS ND NS
11-07-13 ND NS NS ND NS NS ND 117 NS ND NS
03-20-14 ND ND ND 0.81 NS NS ND 140 ND 0.62 NS
06-26-14 ND NS ND 0.23 NS NS ND 120 ND ND NS
08-22-14 ND NS ND 0.18 NS NS ND 120 ND 0.28 NS
11-07-14 ND NS ND ND NS NS ND 130 ND ND NS
03-04-15 NS NS ND 0.79J NS NS ND 80 ND ND NS
06-25-15 ND NS ND 0.57J NS NS ND 57 ND ND NS
09-23-15 ND NS ND ND NS NS ND 70 ND ND NS
12-09-15 ND NS ND 3.1 NS NS ND 53 ND ND NS
02-29-16 ND ND ND 12 NS NS ND 60 ND ND NS
06-01-16 ND ND ND 4.6 NS NS ND 39 ND ND NS
09-02-16 ND ND ND ND NS NS ND 35 ND ND NS
11-28-16 BRL BRL NS 1.2 NS NS BRL 35 BRL BRL NS
Page 2 of 4
PARAMETER UNITS DATE NCAC 15A:2L
2768B 2774 2760 2773 2755 2761 2779 2765 2765 2765 2800 Groundwater
Influent Midfluent Effluent Standard
SUPPLY WELL
Union Ridge Road, Burlington, North Carolina
TABLE 4
Water Supply Well Analytical Results
Harold Smith Grocery
Incident #12913
Ethylene ug/l 03-24-10 <1 NS NS NS NS NS NS <1 <1 <1 NS
Dibromide 06-24-10 NS NS NS <0.5 NS NS NS <0.5 <0.5 <0.5 NS
(EDB)09-08-10 NS NS NS <0.5 NS NS NS <0.5 <0.5 <0.5 NS
12-10-10 NS NS NS <0.5 NS NS NS <0.5 <0.5 <0.5 NS 0.02
03-08-11 NS NS NS <0.5 NS NS <0.5 <0.5 <0.5 <0.5 NS
06-30-11 NS NS NS <0.5 NS NS <0.5 <1 <0.5 <0.5 NS
09-08-11 NS NS NS <0.5 NS NS <0.5 <1 <0.5 <0.5 NS
12-09-11 NS NS NS <0.5 NS NS <0.5 <1 <0.5 <0.5 NS
03-14-12 NS NS NS ND NS NS ND NS NS NS NS
06-07-12 NS NS NS ND NS NS ND NS NS NS NS
9/11-12/2012 NS NS NS ND NS NS ND ND NS ND NS
12-12-12 NS NS NS ND NS NS ND ND NS ND NS
03-14-13 ND NS NS ND NS NS ND ND NS ND NS
05-29-13 ND NS NS ND NS NS ND ND NS ND NS
09-10-13 ND NS NS ND NS NS ND ND NS ND NS
11-07-13 ND NS NS ND NS NS ND ND NS ND NS
03-20-14 ND ND ND ND NS NS ND ND ND ND NS
06-26-14 ND NS ND ND NS NS ND ND ND ND NS
08-22-14 ND NS ND ND NS NS ND ND ND ND NS
11-07-14 ND NS ND ND NS NS ND ND ND ND NS
03-04-15 ND NS ND ND NS NS ND ND ND ND NS
06-25-15 ND NS ND ND NS NS ND ND ND ND NS
09-23-15 ND NS ND ND NS NS ND ND ND ND NS
12-09-15 ND NS ND ND NS NS ND ND ND ND NS
02-29-16 ND ND ND ND NS NS ND ND ND ND NS
06-01-16 ND ND ND ND NS NS ND ND ND ND NS
09-02-16 ND ND ND ND NS NS ND ND ND ND NS
11-28-16 BRL BRL NS ND NS NS BRL ND BRL BRL NS
Isopropyl Ether ug/l 03-24-10 11 NS NS NS NS NS NS 130 <5 <5 NS
(IPE)06-24-10 NS NS NS <0.5 NS NS NS <0.5 <0.5 <0.5 NS
09-08-10 NS NS NS <0.5 NS NS NS 104 <0.5 <0.5 NS
12-10-10 NS NS NS <0.5 NS NS NS 150 <0.5 <0.5 NS 70
03-08-11 NS NS NS <0.5 NS NS <0.5 260 <0.5 <0.5 NS
06-30-11 NS NS NS <0.5 NS NS <0.5 191 <0.5 <0.5 NS
09-08-11 NS NS NS <0.5 NS NS <0.5 206 <0.5 NS
12-09-11 NS NS NS <0.5 NS NS <0.5 178 <0.5 <0.5 NS
03-14-12 NS NS NS ND NS NS ND NS NS NS NS
06-07-12 NS NS NS ND NS NS ND NS NS NS NS
9/11-12/2012 NS NS NS ND NS NS ND 149 NS ND NS
12-12-12 NS NS NS ND NS NS ND 150 NS ND NS
03-14-13 ND NS NS ND NS NS ND 159 NS ND NS
05-29-13 ND NS NS ND NS NS ND 168 NS ND NS
09-10-13 ND NS NS 0.96 NS NS ND 183 NS ND NS
11-07-13 ND NS NS 1.96 NS NS ND 138 NS ND NS
03-20-14 ND ND ND 0.67 NS NS ND 140 ND 0.2 NS
06-26-14 ND NS ND ND NS NS ND 160 ND ND NS
08-22-14 ND NS ND ND NS NS ND 150 ND ND NS
11-07-14 ND NS ND ND NS NS ND 160 ND ND NS
03-04-15 NS NS ND ND NS NS ND 100 ND ND NS
06-25-15 ND NS ND ND NS NS ND 68 ND ND NS
09-23-15 ND NS ND ND NS NS ND 74 ND ND NS
12-09-15 ND NS ND 2.2 NS NS ND 75 ND ND NS
02-29-16 ND ND ND 18 NS NS ND 76 ND ND NS
06-01-16 ND ND ND 5.8 NS NS ND 56 ND ND NS
09-02-16 ND ND ND ND NS NS ND 37 ND ND NS
11-28-16 BRL BRL NS 0.79 NS NS BRL 38 BRL BRL NS
1,2- Dichloroethane ug/l 03-24-10 <1 NS NS NS NS NS NS 6.2 <1 <1 NS
06-24-10 NS NS NS <0.5 NS NS NS <0.5 <0.5 <0.5 NS
09-08-10 NS NS NS <0.5 NS NS NS 15.7 <0.5 <0.5 NS
12-10-10 NS NS NS <0.5 NS NS NS 19 <0.5 <0.5 NS 0.4
03-08-11 NS NS NS <0.5 NS NS <0.5 33.1 <0.5 <0.5 NS
06-30-11 NS NS NS <0.5 NS NS <0.5 28 <0.5 <0.5 NS
09-08-11 NS NS NS <0.5 NS NS <0.5 27.4 <0.5 <0.5 NS
12-09-11 NS NS NS <0.5 NS NS <0.5 26.6 <0.5 <0.5 NS
03-14-12 NS NS NS ND NS NS ND NS NS NS NS
06-07-12 NS NS NS ND NS NS ND NS NS NS NS
9/11-12/2012 NS NS NS ND NS NS ND 20.8 NS ND NS
12-12-12 NS NS NS 0.19J NS NS ND 23 NS ND NS
03-14-13 ND NS NS ND NS NS ND 31.5 NS ND NS
05-29-13 ND NS NS ND NS NS ND 25.9 NS ND NS
09-10-13 ND NS NS ND NS NS ND 25.7 NS ND NS
11-07-13 ND NS NS ND NS NS ND 20.1 NS ND NS
03-20-14 ND ND ND 0.44 NS NS ND 20 ND ND NS
06-26-14 ND NS ND 0.31 NS NS ND 24 ND ND NS
08-22-14 ND NS ND ND NS NS ND 24 ND ND NS
11-07-14 ND NS ND ND NS NS ND 27 ND ND NS
03-04-15 NS NS ND ND NS NS ND 16 ND ND NS
06-25-15 ND NS ND ND NS NS ND 12 ND ND NS
09-23-15 ND NS ND ND NS NS ND 13 ND ND NS
12-09-15 ND NS ND 0.94 NS NS ND 10 ND ND NS
02-29-16 ND ND ND 2 NS NS ND 9.2 ND ND NS
06-01-16 ND ND ND 1 NS NS ND 6.9 ND ND NS
09-02-16 ND ND ND ND NS NS ND 6.4 ND ND NS
11-28-16 BRL BRL NS ND NS NS BRL 6.1 BRL BRL NS
Page 3 of 4
PARAMETER UNITS DATE NCAC 15A:2L
2768B 2774 2760 2773 2755 2761 2779 2765 2765 2765 2800 Groundwater
Influent Midfluent Effluent Standard
SUPPLY WELL
Union Ridge Road, Burlington, North Carolina
TABLE 4
Water Supply Well Analytical Results
Harold Smith Grocery
Incident #12913
1,2-Dichloropropane ug/l 03-24-10 <1 NS NS NS NS NS NS <1 <1 <1 NS
06-24-10 NS NS NS <0.5 NS NS NS <0.5 <0.5 <0.5 NS
09-08-10 NS NS NS <0.5 NS NS NS <0.5 <0.5 <0.5 NS
12-10-10 NS NS NS <0.5 NS NS NS <0.5 <0.5 <0.5 NS 0.6
03-08-11 NS NS NS <0.5 NS NS <0.5 <0.5 <0.5 <0.5 NS
06-30-11 NS NS NS <0.5 NS NS <0.5 <1 <0.5 <0.5 NS
09-08-11 NS NS NS <0.5 NS NS <0.5 <1 <0.5 <0.5 NS
12-09-11 NS NS NS <0.5 NS NS <0.5 <1 <0.5 <0.5 NS
03-14-12 NS NS NS ND NS NS ND NS NS NS NS
06-07-12 NS NS NS ND NS NS ND NS NS NS NS
9/11-12/2012 NS NS NS ND NS NS ND ND NS ND NS
12-12-12 NS NS NS ND NS NS ND ND NS ND NS
03-14-13 ND NS NS ND NS NS ND ND NS ND NS
05-29-13 ND NS NS ND NS NS ND ND NS ND NS
09-10-13 ND NS NS ND NS NS ND ND NS ND NS
11-07-13 ND NS NS ND NS NS ND ND NS ND NS
03-20-14 ND ND ND ND NS NS ND ND ND ND NS
06-26-14 ND NS ND ND NS NS ND ND ND ND NS
08-22-14 ND NS ND ND NS NS ND ND ND ND NS
11-07-14 ND NS ND ND NS NS ND ND ND ND NS
03-04-15 NS NS ND ND NS NS ND ND ND ND NS
06-25-15 ND NS ND ND NS NS ND ND ND ND NS
09-23-15 ND NS ND ND NS NS ND ND ND ND NS
12-09-15 ND NS ND ND NS NS ND ND ND ND NS
02-29-16 ND ND ND ND NS NS ND ND ND ND NS
06-01-16 ND ND ND ND NS NS ND ND ND ND NS
09-02-16 ND ND ND ND NS NS ND ND ND ND NS
11-28-16 BRL BRL NS ND NS NS BRL ND BRL BRL NS
Chloroform 03-24-10 <1 NS NS NS NS NS NS <1 <1 <1 NS
06-24-10 NS NS NS <0.5 NS NS NS <0.5 <0.5 <0.5 NS
09-08-10 NS NS NS <0.5 NS NS NS <0.5 <0.5 <0.5 NS
12-10-10 NS NS NS <0.5 NS NS NS <0.5 <0.5 <0.5 NS
03-08-11 NS NS NS <0.5 NS NS <0.5 <0.5 <0.5 <0.5 NS 70
06-30-11 NS NS NS <0.5 NS NS <0.5 <1 <0.5 <0.5 NS
09-08-11 NS NS NS <0.5 NS NS <0.5 <1 <0.5 <0.5 NS
12-09-11 NS NS NS <0.5 NS NS <0.5 <1 <0.5 <0.5 NS
03-14-12 NS NS NS ND NS NS ND NS NS NS NS
06-07-12 NS NS NS ND NS NS ND NS NS NS NS
9/11-12/2012 NS NS NS ND NS NS ND ND NS ND NS
12-12-12 NS NS NS ND NS NS ND ND NS ND NS
03-14-13 ND NS NS ND NS NS ND ND NS ND NS
05-29-13 ND NS NS ND NS NS ND ND NS ND NS
09-10-13 ND NS NS ND NS NS ND ND NS ND NS
11-07-13 ND NS NS ND NS NS ND ND NS ND NS
03-20-14 ND ND ND ND NS NS ND ND ND ND NS
06-26-14 ND NS ND ND NS NS ND 1.1 ND ND NS
08-22-14 ND NS ND ND NS NS ND ND ND 1.6 NS
11-07-14 ND NS ND ND NS NS ND ND ND ND NS
03-04-15 NS NS ND ND NS NS ND ND ND ND NS
06-25-15 ND NS ND ND NS NS ND ND ND ND NS
09-23-15 ND NS ND ND NS NS ND ND ND ND NS
12-09-15 ND NS ND ND NS NS ND ND ND ND NS
02-29-16 ND ND ND ND NS NS ND ND ND ND NS
06-01-16 ND ND ND ND NS NS ND ND ND ND NS
09-02-16 ND ND ND ND NS NS ND ND ND ND NS
11-28-16 BRL BRL NS ND NS NS BRL ND BRL BRL NS
BRL=Below reporting limits NA=Not analyzed for this parameter J=Estimated Value NS=Not Sampled
Page 4 of 4
TABLE 5
System Operation Parameters
Harold Smith Grocery
Incident #12913
Union Ridge Road, Burlington, North Carolina
PAGE 1 OF 5

DATE:
SVE
TEMP. (°F)
SVE
FLOW (SCFM)
SVE
VACUUM (IN.-H2O)
SPARGE
TEMP. (°F)
SPARGE
PRESSURE (PSI)
1/6/09 65 120 9 180 15
2/4/09 55 115 9 175 12
3/16/09 55 115 8 170 10 4/2/09 75 115 7 180 10
5/6/09 78 115 8 184 10
6/5/09 70 115 6 175 10
7/6/09 80 115 8 NR 10
8/10/09 78 115 8 NR 10
9/8/09 76 115 8 NR 9
10/5/09 72 115 7 NR 7 11/2/09 70 115 6 NR 5
12/13/09 58 115 7 NR 5
1/6/10 36 115 8 NR 3
2/18/10 42 115 8 NR 12
3/5/10 56 115 7 NR 12
3/31/10 50 115 8 NR 12
5/24/10 70 115 8 NR 14
6/25/10 75 110 7 NR 14
7/27/10 75 110 6 NR 12
8/6/10 90 110 6 NR 12
9/2/10 90 110 6 NR 11
10/1/10 85 115 6 NR 10
11/10/10 50 115 6 NR 12
12/7/10 45 115 6 NR 12
1/6/11 40 110 6 NR 12
2/3/11 45 110 6 NR 12
3/15/11 55 110 6 NR 12
SYSTEM OFF – SOIL EXCAVATION
1/6/12 OFF OFF OFF NR 10
2/10/12 OFF OFF OFF NR 10
3/19/12 OFF OFF OFF NR 10
4/4/12 OFF OFF OFF NR 10
5/3/12 OFF OFF OFF NR 10
6/1/12 OFF OFF OFF NR 9
7/3/12 OFF OFF OFF NR 9
8/3/12 OFF OFF OFF NR 9
9/21/12 OFF OFF OFF NR OFF
10/3/12 OFF OFF OFF NR OFF
11/19/12 OFF OFF OFF NR OFF
12/14/12 OFF OFF OFF NR OFF
1/28/13 OFF OFF OFF NR OFF
2/25/13 OFF OFF OFF NR OFF
TABLE 5
System Operation Parameters
Harold Smith Grocery
Incident #12913
Union Ridge Road, Burlington, North Carolina
PAGE 2 OF 5

DATE:
SVE
TEMP. (°F)
SVE
FLOW (SCFM)
SVE
VACUUM (IN.-H2O)
SPARGE
TEMP. (°F)
SPARGE
PRESSURE (PSI)
3/19/13 OFF OFF OFF NR OFF
5/30/13 OFF OFF OFF NR OFF
6/19/13 OFF OFF OFF NR OFF
7/9/13 OFF OFF OFF NR OFF
8/9/13 OFF OFF OFF NR OFF
9/15/3 OFF OFF OFF NR OFF
10/22/13 OFF OFF OFF NR OFF
11/5/13 OFF OFF OFF NR OFF
12/12/13 40 110 5 NR 8
1/10/14 50 110 5 NR 8
2/4/14 40 110 5 NR 8
3/1/14 42 110 5 NR 8
3/25/14 50 110 5 NR 8
5/29/14 80 110 5 NR 8
6/9/14 75 110 5 NR 7
6/30/14 90 110 5 NR 8
8/5/14 80 110 5 NR 8
9/3/14 85 110 5 NR 8
9/26/14 70 110 5 NR 8
11/12/14 50 110 5 NR 8
12/12/14 45 110 5 NR 8
1/21/15 50 110 5 NR 8
1/30/15 50 110 5 NR 8
3/11/15 60 110 5 NR 8
4/13/15 70 110 5 NR 8
5/15/15 70 110 5 NR 8
6/4/15 70 110 5 NR 8
6/29/15 85 110 5 NR 8
7/27/15 85 110 5 NR 8
8/26/15 80 110 5 NR 8
9/30/15 80 110 5 NR 8
11/4/15 70 110 4 NR 8
12/2/15 50 110 4 NR 8
1/27/16 45 110 4 NR 8
2/17/16 50 110 4 NR 8
3/23/16 70 110 4 NR 8
4/20/16 75 110 4 NR 8
5/4/16 80 110 4 NR 8
6/10/16 90 110 4 NR 8
7/15/16 90 110 4 NR 8
TABLE 5
System Operation Parameters
Harold Smith Grocery
Incident #12913
Union Ridge Road, Burlington, North Carolina
PAGE 3 OF 5

DATE:
SVE
TEMP. (°F)
SVE
FLOW (SCFM)
SVE
VACUUM (IN.-H2O)
SPARGE
TEMP. (°F)
SPARGE
PRESSURE (PSI)
8/9/16 88 110 4 NR 8
8/31/16 85 110 4 NR 8
10/04/16 75 110 4 NR 8
11/28/16 60 110 4 NR 8
12/12/16 50 110 4 NR 8

TABLE 5
System Operation Parameters
Harold Smith Grocery
Incident #12913
Union Ridge Road, Burlington, North Carolina
PAGE 4 OF 5

DATE:
AS-1 PRES./ FLOW*
AS-2 PRES./ FLOW*
AS-3 PRES./ FLOW*
AS-4 PRES./ FLOW*
AS-5 PRES./ FLOW*
AS-6 PRES./ FLOW*
AS-7 PRES./ FLOW*
AS-8 PRES./ FLOW*
7/6/09 8/.05 8/.05 8/.05 8/.05 8/.05 8/0.5 8/0 8/0.5
8/10/09 8/.05 8/.05 8/.05 8/.05 8/.05 8/0.5 8/0 8/0.5
9/8/09 7/.05 7/.05 7/.05 7/.05 7/.05 7/.05 7/0 7/.05
10/5/09 5/0.5 5/0.5 5/0.5 5/0.5 5/0.5 5/0 5/.05
11/2/09 4/0.5 4/0.5 4/0.5 4/0.5 4/0.5 4/0.5 4/0 4/0.5
12/13/09 4/0.5 4/0.5 4/0.5 4/0 4/0.5 4/0.5 4/0 4/0.5
1/6/10 3/0.5 3/0.5 3/0 3/0 3/0.5 3/0.5 3/0 3/0
2/18/10 11/3 11/3 11/3 11/3 11/3 11/2 11/0 11/3
3/5/10 11/3 11/2 11/3 11/2 11/3 11/3 11/0 11/3
3/31/10 11/3 11/3 11/3 11/3 11/3 11/3 11/0 11/3
5/24/10 13/4 13/3 13/4 13/4 13/3 13/3 13/0 13/3
6/25/10 13/3 13/3 13/3 13/3 13/3 12/0 13/0 12/3
7/27/10 11/3 11/3 11/3 11/3 11/3 11/3 11/0 11/3
8/6/10 11/3 11/3 10/3 10/3 11/3 11/3 11/0 11/3
9/2/10 10/3 10/2 10/3 10/2 10/2 10/3 10/0 10/2
10/1/10 10/3 10/2 10/2 10/2 10/2 10/2 10/0 10/2
11/10/10 11/3 11/3 11/3 11/2 11/3 11/3 11/0 11/2
12/2/10 11/3 11/3 11/2 11/3 11/3 11/3 11/0 11/2
1/6/11 11/3 11/3 11/2 11/2 11/3 11/2 11/0 11/2
2/3/11 11/3 11/2 11/3 11/2 11/3 11/2 11/0 11/2
3/15/11 11/2 11/3 11/2 11/2 11/3 11/2 11/0 11/2
SYSTEM OFF AFTER SOIL EXCAVATION
1/6/12 8/1 8/0 OFF OFF 8/0 8/1 OFF OFF 2/10/12 10/1 10/0 OFF OFF 10/1 10/1 OFF OFF
3/19/12 8/1 8/1 OFF OFF 8/0 8/0 OFF OFF
4/4/12 8/1 8/1 OFF OFF 8/0 8/0 OFF OFF
5/3/12 8/1 8/1 OFF OFF 8/1 8/0 OFF OFF
6/1/12 8/1 8/1 OFF OFF 8/0 8/0 OFF OFF
7/3/12 8/1 8/1 OFF OFF 8/1 8/1 OFF OFF
8/3/12 8/1 8/1 OFF OFF 8/1 8/1 OFF OFF
9/21/12 8/1 8/1 OFF OFF 8/1 8/1 OFF OFF
10/3/12 OFF OFF OFF OFF OFF OFF OFF OFF
11/19/12 OFF OFF OFF OFF OFF OFF OFF OFF
12/14/12 OFF OFF OFF OFF OFF OFF OFF OFF
1/28/13 OFF OFF OFF OFF OFF OFF OFF OFF 2/25/13 OFF OFF OFF OFF OFF OFF OFF OFF
3/19/13 OFF OFF OFF OFF OFF OFF OFF OFF
NEW SYSTEM INSTALLED AND OPERATIONAL
5/30/13 1/.5 9/2 9/2 1/.5 9/2 9/2 5/1 - 6/19/13 1/.5 9/2 9/2 1/.5 9/2 9/2 5/1 -
7/9/13 1/.5 9/2 9/2 1/.5 9/2 9/2 5/1 -
8/9/13 1/.5 10/2 10/2 1/.5 10/2 10/2 5/1 -
9/15/3 1/.5 10/2 10/2 1/.5 10/2 10/2 5/1 -
10/22/13 1/.5 10/2 10/2 1/.5 10/2 10/2 5/1 -
11/5/13 1/.5 10/2 10/2 1/.5 10/2 10/2 5/1 -
12/12/13 1/.5 10/2 10/2 1/.5 10/2 10/2 5/1 -
1/10/14 1/.5 10/2 10/2 1/.5 10/2 10/2 5/1 -
TABLE 5
System Operation Parameters
Harold Smith Grocery
Incident #12913
Union Ridge Road, Burlington, North Carolina
PAGE 5 OF 5

DATE:
AS-1 PRES./ FLOW*
AS-2 PRES./ FLOW*
AS-3 PRES./ FLOW*
AS-4 PRES./ FLOW*
AS-5 PRES./ FLOW*
AS-6 PRES./ FLOW*
AS-7 PRES./ FLOW*
AS-8 PRES./ FLOW*
2/4/14 1/.5 10/2 10/2 1/.5 10/2 10/2 5/1 -
3/1/14 1/.5 10/2 10/2 1/.5 10/2 10/2 5/1 -
3/25/14 1/.5 10/2 10/2 1/.5 10/2 10/2 5/1 - 5/29/14 1/.5 10/2 10/2 1/.5 10/2 10/2 5/1 -
6/9/14 1/.5 10/2 10/2 1/.5 10/2 10/2 5/1 -
6/30/14 1/.5 10/2 10/2 1/.5 10/2 10/2 5/1 -
8/5/14 1/.5 10/2 10/2 1/.5 10/2 10/2 5/1 - 9/3/14 1/.5 10/2 10/2 1/.5 10/2 10/2 5/1 -
9/26/14 1/.5 10/2 10/2 1/.5 10/2 10/2 5/1 -
11/12/14 1/.5 10/2 10/2 1/.5 10/2 10/2 5/1 -
12/12/14 1/.5 10/2 10/2 1/.5 10/2 10/2 5/1 - 1/21/15 1/.5 10/2 10/2 1/.5 10/2 10/2 5/1 -
1/30/15 1/.5 10/2 10/2 1/.5 10/2 10/2 5/1 -
3/11/15 1/.5 10/2 10/2 1/.5 10/2 10/2 5/1 -
4/13/15 1/.5 10/2 10/2 1/.5 10/2 10/2 5/1 -
5/15/15 1/.5 10/2 10/2 1/.5 10/2 10/2 5/1 -
6/4/15 1/.5 10/2 10/2 1/.5 10/2 10/2 5/1 -
6/29/15 1/.5 10/2 10/2 1/.5 10/2 10/2 5/1 -
7/27/15 1/.5 10/2 10/2 1/.5 10/2 10/2 5/1 - 8/26/15 1/.5 10/2 10/2 1/.5 10/2 10/2 5/1 -
9/30/15 1/.5 10/2 10/2 1/.5 10/2 10/2 5/1 -
11/4/15 1/.5 10/2 10/2 1/.5 10/2 10/2 5/1 -
12/2/15 1/.5 10/2 10/2 1/.5 10/2 10/2 5/1 - 1/27/16 1/.5 10/2 10/2 1/.5 10/2 10/2 5/1 -
2/17/16 SYSTEM OFF – COMPRESSOR MOTOR ISSUES
3/23/16 SYSTEM OFF – COMPRESSOR MOTOR ISSUES
4/20/16 1/.5 10/2 10/2 1/.5 10/2 10/2 5/1 -
5/4/16 1/.5 10/2 10/2 1/.5 10/2 10/2 5/1 -
6/10/16 1/.5 10/2 10/2 1/.5 10/2 10/2 5/1 -
7/15/16 1/.5 10/2 10/2 1/.5 10/2 10/2 5/1 -
8/9/16 1/.5 10/2 10/2 1/.5 10/2 10/2 5/1 - 8/31/16 1/.5 10/2 10/2 1/.5 10/2 10/2 5/1 -
10/4/16 .1/.5 10/2 10/2 1/.5 10/2 10/2 5/1 -
11/23/16 .1/.5 10/2 10/2 1/.5 10/2 10/2 5/1 -
12/12/16 .1/.5 10/2 10/2 1/.5 10/2 10/2 5/1 -
* Individual pressure (in psi) and flow (in scfm) at each sparge well. NR = not recorded.

APPENDIX A

Standard Field Procedures: Revision 10.3 Page 1
Pyramid Environmental & Engineering, P.C. Revision date 11-11-2016
Standard Field Procedures
Pyramid Environmental & Engineering, P.C.
________________________________________________________________________
1.0 Equipment Decontamination Equipment decontamination is essential to assure representative environmental samples are collected and to eliminate the potential for cross contamination between sample points. Pyramid strives to clean all field equipment prior to leaving the office; however, field decontamination is still required on most projects. The procedures for decontamination of water level probes, hand augers, sampling probes and trowels, and other field equipment are listed below.

1.1 EPA Region IV Decontamination Procedures Drilling and soil sampling equipment is decontaminated prior to each use using a pressure washer or steam cleaner. Reusable sampling equipment (hand augers, sampling probes,
trowels, split spoon samplers, water sampling equipment, etc.…) are decontaminated using the general procedure described below.
 Wash with non-phosphate detergent and water, brush to remove particulate matter.
 Rinse with tap water.
 Rinse with 10 percent nitric acid solution (only if sampling for metals)
 Rinse with deionized water.
 Rinse with pesticide-grade isopropyl alcohol.
 Rinse with deionized water.
 Air-dry as long as possible. The level of decontamination used is appropriate to the analytical parameters selected and the material of the sampling device being used for sampling. For example, if metals analyses are required, then the 10 % nitric acid solution is used for decontamination of stainless steel equipment. Pyramid uses deionized or distilled water for decontamination. Equipment that is not used immediately after decontamination is wrapped in aluminum foil prior to storage.

2.0 Soil Borings & Sampling:

2.1 Soil Borings Soil borings are used by Pyramid to characterize the subsurface at many sites. The borings provide information concerning soil types and density, depth to refusal, depth to bedrock, organic vapors that may be present, and can be used to obtain samples for laboratory analysis. Pyramid conducts borings in several different ways, using hand augers, Direct Push equipment (Geoprobe), sample probes, split-spoon samplers (ASTM D 1586-84), auger
drilling, air drilling, and Vibro-Core. The following procedures are used by Pyramid Environmental when performing soil borings: 1. Soil boring locations are chosen, and the utility locating service is called to mark all
public utilities. Pyramid also located private utilities at many project sites using Pyramid locating equipment or a private utility locating service.
Standard Field Procedures: Revision 10.3 Page 2
Pyramid Environmental & Engineering, P.C. Revision date 11-11-2016
2. Down hole drilling equipment is cleaned prior to use and between borings using
pressure washing or steam cleaning. Additional decontamination procedures in section 1.1 are used for quality assurance for sampling tools such as split spoons or Direct-Push Points. 3. Soil borings are advanced using direct-push, drilling rigs, hand augers, or other appropriate means. 4. Soil samples are normally collected at a minimum of 5-foot intervals. Each sample is divided into two parts. Soil samples for laboratory analyses are jarred from the initial sample volume. The remaining soil is stored in a sealed container for headspace analysis with an organic vapor analyzer (OVA). 5. After screening the soil with the field instruments, each soil sample is described by the field geologist and a geologic description is recorded in project documentation.
6. Soils are typically described in the field by the project geologist or soil scientist and are classified according to the Unified Soil Classification System (ASTM D 2488-84).
7. Soil samples selected for laboratory analysis are placed in properly prepared, laboratory supplied containers and immediately packed in a cooler on ice. Sample
custody is maintained using standard chain-of-custody procedures through delivery to the analytical laboratory. 8. Soil borings, which are not completed as monitor wells are grouted using a Portland cement, bentonite, or backfilled with soil cuttings. 9. Where appropriate, soil cuttings are spread near the soil boring or well site in most instances. In rare instances, drill cuttings will be containerized and disposed off-site after waste determination has been made.
2.2 Headspace Screening Soil samples are routinely screened for volatile organic compounds (VOCs) which may be an indication of organic or petroleum hydrocarbon contamination. The typical screening procedure includes immediately transferring the soil from the sampling devices to a sealed container (sealed plastic bag). The soil container is filled approximately halfway with soil and sealed. This creates headspace above the soil in which VOCs may accumulate. The container is allowed to stand for 5 to 15 minutes for the VOCs to equilibrate in the headspace of the container. The headspace of the container is then screened using a calibrated organic vapor analyzer (PID or FID). The screening is conducted by cracking the seal only enough to allow insertion of the probe into the headspace so as not to dilute the sample. In most cases where the contaminant of concern includes volatile organics, the highest or “Peak “ field screening result is documented for each sample. The soil samples showing the highest reading from each boring are typically selected for laboratory analysis.

Standard Field Procedures: Revision 10.3 Page 3
Pyramid Environmental & Engineering, P.C. Revision date 11-11-2016
2.3 Soil Sample Collection for Laboratory Analysis After the targeted depth has been reached, soil samples are collected using a variety of
sampling devices. Soil sample devices used include split-spoons, stainless steel hand augers, stainless steel sampling scoops, and directly from the center of the excavator bucket. The sample technician uses appropriate disposable sampling gloves, which are changed between samples to avoid cross-contamination of samples. Each sampling device is decontaminated prior to use. Only laboratory provided containers are used for sample collection. Samples are collected in accordance with the preservation methods required by
the requested analytical method. Samples are handled as little as possible and preserved in the field as specified for the analytical method. The samples are stored and transported to the laboratory in an insulated cooler chilled to approximately 4 degrees C. The samples are
labeled with a minimum of the following information: project name or number, sampler name, date collected, sample number, and analysis requested. Sample custody is maintained using standard chain-of-custody procedures through delivery to the analytical laboratory. Notes of
the sampling events are recorded in bound field notebooks.

2.4 Sediment Sample Collection for Laboratory Analysis Near surface sediment may be present in a surface water stream or dry intermittent stream
bed. Sediment samples are typically soil related samples and may be collected with a variety of sampling tools. Pyramid will use stainless steel samplers which have been decontaminated according to the procedure detailed in section 1.1 of this document. After
the sediment samples are collected, the location, depth, conditions, and sample composition are documented in the project records. The samples will be screened in the field to detect volatile organic vapors and visually examined for contamination. Sediment samples will be
preserved in laboratory prepared containers in accordance with sample preservation recommendation of the analytical laboratory. Samples are handled as little as possible and preserved in the field as specified for the analytical method. The samples are stored and transported to the laboratory in an insulated cooler chilled to approximately 4 degrees C. The samples are labeled with a minimum of the following information: project name or number, sampler name, date collected, sample number, and analysis requested. Sample custody is maintained using standard chain-of-custody procedures through delivery to the analytical laboratory. Documentation of the sampling events are recorded in bound field notebooks.

3.0 Direct Push Sampling Procedures Direct Push sampling techniques have been used at many sites to collect soil and groundwater samples rapidly and inexpensively. Track mounted direct push rigs can access hard to reach areas and allow borings and monitoring wells to be installed. Pyramid has used this technology to the benefit of our clients at many project sites. For soil sampling, typically, the direct push steel drive tube is decontaminated using a pressure washer, and a new plastic sample liner is inserted in the steel drive tube to collect soil samples. If necessary, the stainless-steel sampling tube is decontaminated using Region IV decontamination procedures presented in section 1.1. The soil samples are collected in
new polyethylene sample tubes within the steel drive tube. The soil samples are then extracted from the polyethylene liner and preserved as required for the appropriate laboratory analysis.
Standard Field Procedures: Revision 10.3 Page 4
Pyramid Environmental & Engineering, P.C. Revision date 11-11-2016
For Groundwater sampling, a steel probe with a retractable screen section and tubing are driven to depth and the screened section is opened to allow groundwater to enter the tubing.
The water samples are withdrawn using new polyethylene tubing with either a decontaminated stainless-steel check ball, or peristaltic pump. The groundwater sample is placed directly into the appropriate laboratory containers and sealed immediately. To prevent cross contamination of samples, new disposable tubing is used for each groundwater sample point. Disposable nitrile gloves are worn by field personnel during development and groundwater sampling, and gloves are changed between samples. Groundwater sampling procedures are detailed more in section 5.0., as appropriate for each analytical method.

4.0 Monitoring Well Installation Groundwater monitoring wells are installed in many subsurface environments; sedimentary, Piedmont saprolite, and mountain terrains to list a few. Formations encountered include
unconsolidated and consolidated sediments, saprolitic and weathered rock formations, and bedrock. Groundwater monitoring wells provide a stable sampling point at discrete intervals within the confined or unconfined aquifers. Monitoring wells are installed for a number of reasons, and are typically installed as 1-inch, 2-inch, 4-inch, or 6-inch diameter wells. Construction may be of PVC or other appropriate materials. The following procedures are used by Pyramid when performing borings and monitoring well installations.
 If required, monitoring well permits are obtained from the State, County, or City.
 Boring and monitoring well locations are chosen, and utilities are marked by the public utility locating company. As needed, the drill locations may also be scanned for utilities using a private utility locating company.
 In selecting a drill site, care is taken to avoid overhead power lines, and subsurface
utilities whenever possible.
 Down hole drilling equipment is decontaminated prior to use and between borings.
 Borings are advanced using direct-push, drilling rigs, hand augers, solid-stem augers, hollow-stem augers, air rotary drilling, or air hammer drilling.
 Soil samples are normally collected at a minimum of 5-foot intervals. Each sample is divided into two parts. Soil samples for laboratory analyses are jarred from the initial sample volume. The remaining soil is stored in a sealed container for headspace analysis with an organic vapor analyzer (OVA).
 After screening the soil with the field instruments, each soil sample is described by the field geologist and a geologic description is recorded in the field notes. Type II monitoring wells are usually installed using 2-inch diameter schedule 40 PVC riser and 2- inch, 0.010-inch machine slotted well screen. The screened interval varies with the purpose of the well, and well details are presented with the boring logs.
Type III wells are usually installed as double cased wells to monitor the deeper portions of the aquifer. The first casing is usually a 6-inch diameter casing drilled to bedrock or an
appropriate depth within the saprolite. The 6-inch diameter casing is then set and grouted in the borehole. After the cement grout has set for 12 to 24-hours, the borehole is completed to the desired depth using air rotary or an air hammer drilling. The Type III monitor well is
usually constructed of 2-inch diameter SCH 40 PVC casing and 2-inch diameter SCH 40 PVC 0.010-inch slotted well screen.
Standard Field Procedures: Revision 10.3 Page 5
Pyramid Environmental & Engineering, P.C. Revision date 11-11-2016
In most applications, a sand filter pack of #2 well sand (or appropriately sized well sand) is typically installed to a level of 2 feet above the top of the screen in each well. A minimum 2-
foot thick bentonite seal is usually placed on top of the filter pack and hydrated with deionized or distilled water. The remaining annular space of a typical well is backfilled to grade with a Portland cement/bentonite grout. In monitoring wells where the water table is close to surface, the amount of sand above the screen and bentonite will be reduced to allow for a minimum of 2 –3 feet of cement grout in the well bore. At the surface, each well is usually secured with a locking cap and a steel well protector set in a 2 by 2 foot concrete pad. In some cases, stick-up well protectors are used to secure the well and allow the well to be more easily located in wooded or open areas. Each groundwater monitoring well is developed by surging, pumping, or bailing to remove sediment before sampling. Water removed during development is managed according to regulatory standards.

5.0 Water Sampling Procedures Pyramid relies on water sampling as a primary method for assessment of subsurface conditions. Water sampling typically includes sampling groundwater from monitoring wells, supply wells, surface water bodies, waste pits, sumps, etc. The following provides typical
sampling procedures for the major sample types.

5.1 Monitoring Wells Prior to sampling each monitor well, depth to product/groundwater and total well depth are measured using a properly decontaminated electric interface probe. This information is recorded in the field record and the volume of the water in the well casing is calculated. To purge stagnant water from each monitor well, five well casing volumes of water are removed from each well, or until the field parameters pH, conductivity, dissolved oxygen, and temperature have stabilized. If the water in the monitoring well is removed until the well is dry, then the well is sampled thereafter. Water removed from wells during purging is managed in accordance with regulatory guidance. Depending on project requirements, temperature, pH, specific conductance, dissolved oxygen, and other parameters may be measured prior to sampling. Groundwater samples are typically collected using a new disposable polyethylene bailer and a new length of nylon cord. To prevent cross contamination of samples between wells, a new
disposable bailer is used for each well. A new pair of disposable gloves is worn by field personnel during purging and sampling, and is changed between wells. In the case of small diameter monitoring wells or direct-push water samples, water samples may be collected
using a peristaltic pump and new polyethylene tubing. Another method is to use a segment of new polyethylene tubing and a stainless-steel check ball to create a “Tube Bailer”.
Groundwater samples selected for laboratory analysis are placed in properly prepared, laboratory supplied containers and immediately preserved in a cooler on ice. Samples are maintained under standard chain-of-custody procedures from sample collection through laboratory analysis.
Standard Field Procedures: Revision 10.3 Page 6
Pyramid Environmental & Engineering, P.C. Revision date 11-11-2016

5.2 Water Supply Well Sampling Procedures Prior to sampling each water supply well, the well owner is contacted to provide access to the well. The well owner is interviewed to find the faucet closest to the well for sampling. If there are no faucets located on the well, then water from an outside faucet is usually sampled. If there are no outside faucets available, then the water samples are collected from
an inside faucet. The location of the sample is recorded in the field book. The owner is interviewed to see if there is a chlorination system on the well, or if the well has
been recently chlorinated. Recent chlorination could affect the laboratory detection limits. In most cases, the samples are preserved using sodium thiosulfate or ascorbic acid to remove the interactions of chlorine, which may be present in the samples.
To purge stagnant water from the water supply well system, the faucet is allowed to run on full stream for a minimum of 15 minutes. The aerator is removed from the tap if one is present. Water removed from wells during purging is managed according to regulatory standards.
Supply well samples are collected using appropriate laboratory prepared containers for each analysis. The analytical methods selected will vary with the contaminant of interest. To prevent cross contamination of samples between wells, disposable latex gloves are worn by field personnel during purging and sampling and are changed between wells. It is possible that samples may be required at several places within the water supply system. The samples will be collected accordingly and labeled to show the source and location sampled. Supply well samples selected for laboratory analysis are placed in properly prepared,
laboratory supplied containers and immediately packed in a cooler on wet ice, and chilled to approximately 4 degrees Celsius. Samples are maintained under strict control using standard chain-of-custody procedures through laboratory analysis.

5.3 Surface Water Sampling Surface water samples are obtained using several techniques including use of sample bailers, sample scoops, from boats, bridges, or actually wading into a stream. Caution should always be used when sampling surface water to ensure that the water collected is representative of the conditions. Since stream or open water sampling is transient, careful documentation of the site conditions is required. In many studies, additional samples from upstream and downstream of the desired sample point are required. Surface water sampling must be planned to reflect the desired conditions
during sampling. The general procedures are similar to the supply well sampling procedures detailed above. Prepare the appropriate laboratory prepared containers for each analysis. The analytical methods selected will vary with the contaminant of interest.
To prevent cross contamination of samples between samples, disposable latex gloves are worn by field personnel during purging and sampling and are changed between samples.
It is possible that samples may be required at several places along the stream to check for influences of up-stream facilities.
Standard Field Procedures: Revision 10.3 Page 7
Pyramid Environmental & Engineering, P.C. Revision date 11-11-2016
The samples will be collected accordingly and labeled to show the source and location sampled. Sample will always be collected upstream of the area disturbed by the person
sampling the stream. Surface water samples selected for laboratory analysis are placed in properly prepared, laboratory supplied containers and immediately packed in a cooler on ice. Samples are maintained under strict control using standard chain-of-custody procedures through laboratory analysis.

6.0 Quality Assurance / Quality Control The decontamination procedures listed above have been implemented on many sites with excellent results. The procedures are often verified by an appropriate use of the following
environmental sample “Blanks”.
Trip Blanks
The trip blank (or travel blanks) are often used to verify that the sample containers are not impacted during shipping, and verify that the source of the glassware is not the source of contamination. The trip blanks are preserved de-ionized water, collected in the laboratory, and shipped with the sample containers to the site. The trip blank remains in the cooler and is shipped back to the laboratory with the environmental samples. The trip blank is usually analyzed for volatile organics, which correspond to the target analyses.
Field Blanks
Field Blanks are quality assurance samples which are collected in the field to represent the conditions present at the time the samples are collected. For water samples, the laboratory containers are opened and filled in the field using de-ionized (or distilled) water from a known source. The samples then travel to the laboratory with the other samples for analysis.
Equipment Blanks
Equipment blanks are used to verify whether the decontamination procedures used for the sample equipment or the new equipment added any contaminants to the sample during collection. If a non-disposable sampling device is used (such as a sampling treir, scoop,
hand auger, Teflon bailer, etc…), then the decontamination of the sampling device is usually verified using an equipment blank. The equipment blank is collected using de-ionized (or distilled) water from a known source. The equipment is cleaned, and allowed to dry, the water
is poured over or through the equipment, and collected in the appropriate sample containers. The equipment blank samples are preserved with the other environmental samples, and shipped for analyses for the target parameters.
Duplicate Samples
Duplicate Samples are used to verify the sampling procedures and laboratory analysis variability. The duplicate samples may be collected from waste streams, soil, or groundwater. These samples are collected and sent to the laboratory as a blind sample to have maximum effectiveness. Samples are generally analyzed for the same analytical methods as the actual environmental sample for direct comparison. Duplicate samples may also be split between two different laboratories to provide verification of laboratory detection limits or quality process verification.

APPENDIX B

APPENDIX C

P.O. Box 16265 • Greensboro, NC 27416 503 Industrial Ave • Greensboro, NC 27406 Phone [phone] • Fax [phone] • Toll Free [phone] Email: [e-mail] www.pyramidenvironmental.com
December 26, 2016 James McMillan Sent Via email: [e-mail]
RE: Supply Well Analytical Results
2765 Union Ridge Road, Burlington, NC
NCDEQ Incident #12913 Former Harold Smith Grocery
Pyramid Project 2016-261 Dear Mr. McMillan: As directed by the NCDEQ and T.A.C., Inc., Pyramid Environmental has continued to collect samples from the Point-of-Entry (POE) treatment system that is connected to your water supply well. The work is
being performed as part of the ongoing assessment of the referenced underground storage tank release. The results of the water analyses are presented below.
On November 28, 2016, Pyramid collected influent, midfluent, and effluent samples from the POE connected to your supply well. The samples are designated as SW-2765 INF, SW-2765 MID, and SW-2765 EFF. The groundwater samples were analyzed at a State certified laboratory and the results are
attached for your review. The laboratory results indicate that the POE influent (untreated water) contained methyl tert-butyl ether (MTBE) at a concentration of 35 parts per billion (PPB). The current North Carolina drinking water standard for MTBE is 20 PPB. The compound 1,2-Dichloroethane was detected at 6.1 PPB. The current North Carolina drinking water standard for 1,2-Dichloroethane is 0.4 PPB. The compound isopropyl ether (IPE) was detected at 38 PPB. The current North Carolina drinking water standard for IPE is 70 PPB. No other targeted compounds were detected at concentrations that exceeded
the laboratory detection limits in the POE influent. The laboratory results of the POE effluent sample (treated water) collected on November 28, 2016 indicate that none of the targeted petroleum compounds were detected at concentrations that exceed the laboratory detection limits. The POE worked to remove petroleum contaminants prior to water use. Maintenance of the POE treatment system will continue to be performed on a quarterly basis. If you have any questions, please call Pyramid at [phone]. Thank you for your cooperation with
this project. Sincerely,
Brett S. Higgins Project Manager
Attachments – Laboratory Report

P.O. Box 16265 • Greensboro, NC 27416 503 Industrial Ave • Greensboro, NC 27406 Phone [phone] • Fax [phone] • Toll Free [phone] Email: [e-mail] www.pyramidenvironmental.com
December 26, 2016 Mr. Ricky Lassiter 2773 Union Ridge Road Burlington, NC 27217
RE: Supply Well Analytical Results
2773 Union Ridge Road, Burlington, NC
NCDEQ Incident #12913 Former Harold Smith Grocery
Pyramid Project 2016-261 Dear Mr. Lassiter: As directed by the NCDEQ and T.A.C., Inc., Pyramid Environmental has continued to collect samples
from your water supply well located at 2773 Union Ridge Road. The work is being performed as part of the ongoing assessment of the referenced underground storage tank release. The results of the water analyses are presented below.
On November 28, 2016, Pyramid collected a groundwater sample from your supply well. The sample is designated as SW-2773. The groundwater samples were analyzed at a State certified laboratory and the
results are attached for your review. The laboratory results showed the presence of methyl tert-butyl ether (MTBE) at a concentration of 1.2 parts per billion (PPB) and isopropyl ether (IPE) at a concentration of 0.79 PPB. Respectively the current North Carolina drinking water standard for these compounds are 20 PPB and 70 PPB. Since the residence is provided with bottled water, the potential for exposure from the detected petroleum
compounds is reduced. In the past, Pyramid has requested that the NC DEQ Central Office perform a Health Risk Evaluation (HRE) for this well. Please let us know when you receive the HRE letter from the DEQ regarding your well as they do not always copy us on the HRE letters. T.A.C./Pyramid will continue to monitor the petroleum concentrations for this water supply well on a quarterly basis. If you have any questions, please call Mike Jones [phone]. Thank you for your cooperation with this project.
Sincerely,
Brett S. Higgins Project Manager
Attachments – Laboratory Report

APPENDIX D

Summary of System Installation, Start-up, and Operation Activities
Harold Smith Remediation System
October – December 2016

October 4, 2016 System was not operational at arrival. The technician replaced the drive belt and reset and restarted the system. The technician performed other regular operational and maintenance tasks on the system. The technician then recorded system operations data and measurements. System was
operational at departure. November 23, 2016 System was operational at arrival. The technician performed regular operational and maintenance tasks on the system. The technician then recorded system operations data and measurements. System was
operational at departure.
December 12, 2016 System was operational at arrival. The technician tightened fittings and performed regular operational and maintenance tasks on the system. The
technician then recorded system operations data and measurements.
System was operational at departure.