WS-2467_3510_CA_MRP_20180111

Groundwater Monitoring Report
Needham Service Station, #3510
719 Main Street
Pilot Mountain, North Carolina 27041
S&ME Project No. 4305-17-229
PREPARED FOR:
NCDEQ, DWM, UST Section
1646 Mail Service Center
Raleigh, NC 27699-1646
PREPARED BY:
S&ME, Inc.
8646 West Market Street
Greensboro, NC 27409
January 11, 2018
S&ME, Inc. | 3201 Spring Forest Road | Raleigh, NC 27616 | p 919.872.2660 | www.smeinc.com
January 11, 2018
NCDEQ, DWM, UST Section
1646 Mail Service Center
Raleigh, NC 27699-1646
Attention: Mr. Herbert E. Berger, Jr., LG via email: [e-mail]
Reference: Groundwater Monitoring Report
Needham Service Station, Incident #3510, UST No. WS-2467
719 Main Street
Pilot Mountain, North Carolina
S&ME Project No. 4305-17-229
Dear Mr. Berger:
S&ME, Inc., (S&ME) presents this report in accordance with the North Carolina Department of Environmental
Quality/S&ME Contract No. N17002 and S&ME Proposal No. 43-1700706, dated October 3, 2017, and as
authorized by Task Authorization No. 01, dated October 4, 2017.
If you have any questions or comments regarding this report, please contact us at your convenience.
Sincerely,
S&ME, Inc.
Lyndal Butler Wayne H. Watterson, P.E.
Environmental Scientist Senior Engineer
Groundwater Monitoring Report
Needham Service Station, Incident #3510, UST No. WS-2467
719 Main Street
Pilot Mountain, North Carolina
S&ME Project No. 4305-17-229
January 11, 2018 ii
Table of Contents
1.0 Site Information ................................................................................................................ 1
1.1 Site Identification ............................................................................................................................ 1
1.2 Information about Contacts Associated with the Leaking UST System ................................. 1
1.3 Information about Release ............................................................................................................ 1
1.4 Information about the Monitoring Report .................................................................................. 1
1.5 Certification ..................................................................................................................................... 2
2.0 Executive Summary .......................................................................................................... 2
3.0 Scope of Services ............................................................................................................... 3
3.1 Contract Information ..................................................................................................................... 3
3.2 Approved Scope of Services ......................................................................................................... 3
4.0 Site History and Characterization ................................................................................. 4
4.1 UST Owner and Operator Information ....................................................................................... 4
4.2 UST Information ............................................................................................................................. 4
4.3 Description of the UST Release .................................................................................................... 4
4.4 Site Characteristics ......................................................................................................................... 4
4.5 Owners and Occupants of Adjoining/Nearby Properties and Land Use ............................... 4
4.6 Receptors/Potential Receptor Information .................................................................................. 5
5.0 Current Site Assessment Information .......................................................................... 5
5.1 Current Liquid Levels .................................................................................................................... 5
5.2 Groundwater Monitoring Event .................................................................................................. 5
5.3 Summary of Groundwater Information ...................................................................................... 6
5.4 Regional and Site Geology and Hydrogeology .......................................................................... 6
5.4.1 Soil and Bedrock ................................................................................................................................ 6
5.4.2 Hydrogeology .................................................................................................................................... 6
5.5 Evaluation of Soil, Groundwater, Surface Water, and Free Product Assessment Information .............. 6
5.5.1 Current Extent and Severity of Contamination ............................................................................... 6
5.5.2 Cleanup Levels Achieved ................................................................................................................... 7
6.0 Conclusion and Recommendations ............................................................................... 7
Groundwater Monitoring Report
Needham Service Station, Incident #3510, UST No. WS-2467
719 Main Street
Pilot Mountain, North Carolina
S&ME Project No. 4305-17-229
January 11, 2018 iii
List of Figures
1.Vicinity Map
2.Site Map
3.Groundwater Contour Map
4.Groundwater Constituent Map
5.Benzene Isoconcentration Contour Map
6.Ethylene Dibromide Isoconcentration Map
List of Tables
1.UST System Information
2.UST Owner Information
3.Well Construction and Liquid Level Data
4.Summary of Water Sampling Results
Appendices
Appendix I – Figures
Appendix II – Tables
Appendix III - Historical Documents
Appendix IV – Photo Log
Appendix V – Field Notes and Field Sampling Forms
Appendix VI – Laboratory Analytical Report and Chain of Custody Form
Appendix VII - NC Department of Transportation Right of Way Information
Groundwater Monitoring Report
Needham Service Station, Incident #3510, UST No. WS-2467
719 Main Street
Pilot Mountain, North Carolina
S&ME Project No. 4305-17-229
January 11, 2018 1
1.0 Site Information
1.1 Site Identification
•Date of Report: January 11, 2018
•Facility I.D. 0-00-000008029 (UST Database) UST Incident No.: 3510 UST No.: WS-2467
•Site Risk: Intermediate Site Rank: C130 Land Use Category: Residential
•Site Name: Needham Service Station
•Site Address: 719 East Main Street
•City/Town: Pilot Mountain Zip Code: 27041 County: Surry
•Description of Geographical Data: Former UST Basin
•Location Method: Surry County GIS System
•Latitude (decimal degrees): 36.3825°N Longitude (decimal degrees): -80.4533°W
1.2 Information about Contacts Associated with the Leaking UST System
•UST Owner: C.B. Roberson, Inc., Halifax, VA
•UST Operator: Unknown
•Property Occupant: J N R Autos and At The Fork Flea Market
•Consultant/Contractor: S&ME, Inc. (Lyndal Butler)
•Address: 8646 West Market Street, Greensboro NC 27409 Telephone: [phone]
•Analytical Laboratory: Con-Test Analytical Laboratory State Certification No.: 652
•Address: 39 Spruce Street, East Longmeadow, MA 01028 Telephone: [phone]
1.3 Information about Release
•Date Discovered: August 18, 1987
•Estimated Quantity of Release: Unknown
•Cause of Release: Spills/Leaks: Leak from elbow of product line.
•Source of Release (Dispenser/Piping/UST): UST System.
•Sizes and contents of UST system from which the release occurred: 1) 2,000-gallon gasoline UST, 2) 3,000-gallon
gasoline USTs.
•Criteria Used to Classify Risk: Free product in monitor well MW-13; dissolved petroleum compound concentrations
greater than Gross Contamination Levels.
1.4 Information about the Monitoring Report
•Date of Groundwater Monitoring: November 13, 2017.
Groundwater Monitoring Report
Needham Service Station,Incident #3510,UST No.WS-2467
719 Main Street
Pilot Mountain,North Carolina
S&ME Project No.4305-17-229 III
1.5 Certification
Wayne H.Watterson,P.E.
2.0 Executive Summary
On November 13,2017,S&ME conducted groundwater sampling at the Needham Service Station.The laboratory
analytical results indicated that the following dissolved phase petroleum constituents were reported in monitor
well samples at maximum concentrations or estimated concentrations.
Contaminant 2L Standard (ug/L)Concentration Well 10(ug/L)
Benzene 1 16,000 MW-6R
Toluene 600 32,000 MW-6R
Ethylbenzene 600 3,400 MW-6R
Xylenes,Total 500 19,000 MW-6R
Methyl tert-butyl ether 20 2,100 MW-14
Diisopropyl ether 70 110 MW-14
n-Butylbenzene 70 79 MW-14
sec-Butylbenzene 70 20 J MW-14
n-Propylbenzene 70 330 MW-6R,MW-14
Isopropyl benzene 70 120 MW-6R,MW-14
Naphthalene 6 730 MW-6R
2-Hexanone 280 1,100 MW-14
2-Butanone 4,000 1,100 MW-14
4-Methyl-2-pentanone 100 200 J MW-14
Ethylene dibromide 0.02 210 MW-6R
1,2-Dichloroethane 0.4 5.5 MW-9
1,2-Dichloropropane 0.6 0.69 MW-9
1,2,4-Trimethylbenzene 400 2,700 MW-6R,MW-14
1,3,5-Trimethylbenzene 400 620 MW-14
Tetrachloroethylene 0.7 2.4 MW-12
January 11,2018 2
Groundwater Monitoring Report
Needham Service Station, Incident #3510, UST No. WS-2467
719 Main Street
Pilot Mountain, North Carolina
S&ME Project No. 4305-17-229
January 11, 2018 3
•S&ME measured free product in monitor well MW-13 at a thickness of 0.89 feet. Free product has
previously been reported monitor wells MW-2 (submerged screen), MW-6R and MW-13.
•The dissolved phase petroleum constituent concentrations in monitor well MW-6R have remained stable
since the last sampling event in September 2012, with the exception of lower concentrations of Benzene
and Methyl tert-butyl ether (MTBE). Similar concentrations were reported for constituents in monitor well
MW-14, and lower concentrations were reported in monitor well MW-7, MW-9 and MW-12, relative to
September 2012.
•Based on the Monitoring Report prepared by Terrain (December 31, 2008), the following sensitive
receptors were noted within 1,500 feet of the site:
Distance from
source (ft)
Municipal
Water
Available
Active Drinking
Water Well
Inactive
Drinking
Water Well
Irrigation
Well
Surface Water
Body
0 - 500 Yes 0 WSW-4 0 0
500 – 1,000 Yes 0 WSW-2 0 0
1,000 – 1,500 Yes WSW-1, WSW-3 0 0 0
•To achieve incident closure, two options are presented:
1.Remove free product.
2.Reduce the concentrations of volatile organic compounds (VOCs) to levels less than Gross Contamination
Levels.
3.0 Scope of Services
3.1 Contract Information
The scope of services for this report was performed in general accordance with S&ME’s proposal number 43-
1400706 dated October 3, 2017. The scope of services was authorized by the North Carolina Department of
Environmental Quality (NCDEQ’s) Task Authorization 01, dated October 4, 2017, and within contract number
N17002.
3.2 Approved Scope of Services
S&ME’s approved Scope of Services for this Task Authorization included: gauge free product in monitor well MW-
13, gauging and collecting groundwater samples from five monitor wells (MW-13, if no free product), MW-2, MW-
6R, MW-7, MW-12 and MW-14), and prepare one Field Blank sample, for analysis by EPA Method 6200B, measure
depth to water in four monitor wells (MW-1R, MW-3, MW-5 and MW-8), locate monitor wells with GPS unit,
inquire with NCDOT about Highway 52 Right-of-Way, and preparing this report. The scope of services was
completed as proposed, with the following exceptions.
Groundwater Monitoring Report
Needham Service Station, Incident #3510, UST No. WS-2467
719 Main Street
Pilot Mountain, North Carolina
S&ME Project No. 4305-17-229
January 11, 2018 4
•As requested by Mr. Herb Berger of the NCDEQ, sampling of monitor well MW-2, which was installed with
screened casing submerged below the water table), was replaced by sampling of monitor well MW-9, to
evaluate stability of the downgradient portion of the dissolved plume.
•A vehicle was parked over monitor well MW-1R during sampling activities. The depth to water was not
measured in monitor well MW-1R.
•The well cap for monitor well MW-3 was loose and the water level in the well was at the top of the casing
and did not appear to represent static conditions. The depth to water was not measured in monitor well
MW-3.
•The depth to water measurement for monitor well MW-5 was performed, but not recorded.
4.0 Site History and Characterization
4.1 UST Owner and Operator Information
The UST owner/operator information is provided in Table 1, Appendix II. Based on a summary for “Allison Tree
Service Station” (Appendix III) provided by the NCDEQ, ownership of the USTs was disputed, but C.B. Roberson,
Inc. is listed as the owner in the UST Database.
4.2 UST Information
Three 4,000-gallon gasoline USTs formerly operated at the site. Information about the USTs is provided in Table
1 and Table 2, Appendix II, and the locations of the former USTs are shown in Figure 2, Appendix I.
4.3 Description of the UST Release
♦Date reported: August 18, 1987
♦Cause and Source: leaking elbow joint in product line.
♦Aggressive Fluid/Vapor Recovery events performed using monitor wells MW-2 and MW-6R during
October 2010, May 2011 and January 2012, recovered vapor as gasoline equivalent to 75 gallons, 188
gallons and 3 gallons, respectively. A Mobile Multi-phase Extraction event performed during August
2012 using monitor wells MW-2 and MW-6R recovered 87 gallons of gasoline as vapor.
4.4 Site Characteristics
♦The site consists of a one-story, masonry-frame building in commercial use and associated asphalt
pavement. The building is currently occupied by J-N-R Autos and At The Flea Market. A
photographic log of the site is provided as Appendix IV.
♦Based upon the groundwater elevation map (Figure 3, Appendix I), groundwater near the source
area generally flows to the northeast. The easterly component shown downgradient of monitor well
MW-6 is similar to divergent flow conditions observed during previous monitoring events, and may
be exaggerated due to the limited number of monitoring points measured on November 13, 2017.
4.5 Owners and Occupants of Adjoining/Nearby Properties and Land Use
The site and adjoining and adjacent properties are in commercial use. Apparent residential properties are located
on Main Street to the southwest. A site map is provided as Figure 2, Appendix I.
Groundwater Monitoring Report
Needham Service Station, Incident #3510, UST No. WS-2467
719 Main Street
Pilot Mountain, North Carolina
S&ME Project No. 4305-17-229
January 11, 2018 5
S&ME contacted Mr. Stewart Hanks of the NC Department of Transportation (NCDOT) on November 27, 2017,
concerning the old US Highway 52 right-of-way adjacent to the site. Mr. Hanks provided documents to S&ME
indicating that the right-of-way at this location is 75 feet from the highway center line. The property boundary in
shown on the Surry County GIS system is approximately 60 feet from the center line in the vicinity of monitor wells
MW-2 and MW-7. A copy of the information is included in Appendix VII.
4.6 Receptors/Potential Receptor Information
Conducting a receptor survey was outside of the scope for this assessment. However, based on previous
information:
♦Two inactive potable water supply wells are located within 1,000 feet of the source area.
♦Two active potable supply wells are located between 1,000 and 1,500 feet of the source area.
♦No surface water bodies are located within 1,500 feet of the source area.
The locations of water supply wells are provided on a figure included in Appendix III. A municipal water source is
currently available to the site and surrounding properties.
5.0 Current Site Assessment Information
5.1 Current Liquid Levels
On November 13, 2017, S&ME was onsite to gauge liquid levels in monitoring wells installed in response to the
release. The depth to water ranged from 27.44 feet below top of casing (ft-BTOC) in MW-9 to 49.70 ft-BTOC in
MW-5. Relative groundwater elevations ranged from 63.03 feet in MW-12 to 51.96 feet in MW-9. Free product
was measured at a thickness of 0.89 feet in MW-13. A summary of current and historical groundwater levels is
depicted in Table 3, Appendix II. The groundwater contour map based on the October 13 2017, measurements,
is depicted in Figure 3, Appendix I.
5.2 Groundwater Monitoring Event
After measuring the depth-to-water, S&ME personnel purged monitoring wells MW-6R, MW-7, MW-9, MW-12
and MW-14, with disposable polyethylene bailers by evacuating at least three well volumes of water from the
casing. The monitoring wells were allowed to recharge and suspended sediments allowed to settle. The field
parameters pH, specific conductivity, and temperature were measured in for each approximate casing volume, and
recorded on the field sample summary records, which are located in Appendix V.
During the sampling event a Field Blank sample (FB) was also prepared using laboratory supplied deionized water.
Groundwater samples were collected directly into laboratory supplied containers by hand using disposable Nitrile
gloves, placed in a cooler on ice, and shipped under standard chain-of-custody record to Con-Test Analytical
Laboratory (Con-Test) for analysis. Monitor well samples and the Field Blank sample were analyzed for volatile
organic compounds (VOCs) by EPA Method 6200B.
Groundwater Monitoring Report
Needham Service Station, Incident #3510, UST No. WS-2467
719 Main Street
Pilot Mountain, North Carolina
S&ME Project No. 4305-17-229
January 11, 2018 6
5.3 Summary of Groundwater Information
The laboratory analytical results of the groundwater samples collected from groundwater monitoring wells
indicate several petroleum related constituents in monitor wells MW-6R, MW-7, MW-9, MW-12 and MW-14, at
concentrations greater than the corresponding 2L Standards. Benzene and Ethylene dibromide were reported in
monitor wells 6R and MW-14 at concentrations greater than their Gross Contamination Levels. A summary of the
groundwater analytical results is presented in Table 4, Appendix II, and are shown in Figure 4, Appendix I. A
copy of the analytical report is provided in Appendix VI.
5.4 Regional and Site Geology and Hydrogeology
5.4.1 Soil and Bedrock
Based on the Soil Survey of Surry County, North Carolina http://www.nrcs.usda.gov/Internet/ FSE_Manuscripts
/north_carolina/NC171/0/Surry.pdf), soils on the property are classified as Urban land (Ur). Urban land is
described as altered by cutting, filling, grading and shaping so that the original topography and drainage have
been changed. Subsurface soil characterized during installation of monitor wells MW-2 through MW-9 by others
consisted of silt, sandy silt and silty fine sand overlying weathered rock. Subsurface soil characterized during
installation of monitor well MW-13 consisted of silty clay and clayey silt, underlain by silt.
According to the Geologic Map of North Carolina, dated 1985, the site is underlain by Proterozoic to Cambrian
metamorphosed granitic rocks. Bedrock was not encountered within 30.4 feet of the ground surface during
installation of monitoring well MW-13. During prior assessment activities performed by others, bedrock was
encountered by soil borings performed to install monitoring wells MW-2 and MW-3 at depths of 65 feet and 55
feet below ground surface, respectively.
5.4.2 Hydrogeology
S&ME calculated the groundwater elevations for the monitor wells gauged using the depth-to-water
measurements and the top of casing elevations. The groundwater elevations were used to prepare a groundwater
elevation map (Figure 3), which generally indicates that groundwater flows to the northeast. The hydraulic
conductivity for the site provided by Engineering Tectonics, P.A. (July 1988) was 1.32 X 10-4 cm/sec. S&ME
calculated the average hydraulic gradient near the source area as 0.025, based on the limited groundwater
elevations recorded on November 13, 2017. A fate and transport model has not been created; therefore, the rate
of contaminant migration has not been calculated.
5.5 Evaluation of Soil, Groundwater, Surface Water, and Free Product Assessment
Information
5.5.1 Current Extent and Severity of Contamination
Free product was detected historically in monitor well MW-2 (submerged screen), and in monitor well MW-13
since installation in 2015.
Groundwater Monitoring Report
Needham Service Station, Incident #3510, UST No. WS-2467
719 Main Street
Pilot Mountain, North Carolina
S&ME Project No. 4305-17-229
January 11, 2018 7
With the exception of one VOC not associated with petroleum products, Tetrachloroethene, the dissolved
constituent plume is delineated up gradient of and southwest of the source area by monitor well MW-12, and
cross gradient of and northwest of the source area historically by monitor well MW-1R. Cross gradient delineation
has also been provided historically to the east by monitor well MW-10. The dissolved plume is not delineated
downgradient of and northeast to north northeast of the source area. Multiple VOCs have been reported
historically at concentrations greater than the 2L Standards in monitor well MW-11 located approximately 300 feet
from the source area. Impacts observed at monitor well location MW-7, MW-8, MW-9 and MW-11 may be a
result of free product in the source area. The downgradient extent of the free product plume reached monitor
well MW-6R in 2008. However, dissolved constituent concentrations have diminished since 2008 in downgradient
monitor wells MW-7, MW-8, MW-9 and MW-11.
Dissolved phase contamination in monitor wells has generally decreased since 2008, with the exception of
monitor well MW-6R and MW-14 (installed March 2015. Monitor wells MW-6R and MW-14 were installed with
the screened section of casing intersecting the water table and are located proximal to the free product plume
represented by monitor well MW-13.
No impacted soil has been removed from the site (Tank Closure Assessment; Legacy Environmental Services,
November 18, 1991; Appendix III). Risk-based soil analyses performed in March 2015 resulted in multiple VOC
and carbon-chain fraction concentrations greater than the soil-to-groundwater Maximum Soil Contaminant
Concentrations (MSCCS) in soil samples collected during installation of monitor wells MW-12 and MW-14. Also,
C9-C18 Aliphatics and C9-C22 Aromatics were reported in the soil sample collected at the location of MW-12
(depth 10 feet below ground surface) at concentrations greater than the corresponding residential MSCCs. A
copy of the 2015 Summary of Soil Analytical Results, Table 3, is included in Appendix III.
5.5.2 Cleanup Levels Achieved
♦Soil (residential MSCCs) No
♦Groundwater (Gross Contamination Level) No
♦Free Product - (0.01 feet) No
6.0 Conclusion and Recommendations
Based on the current and historical assessment information for the site, the following conclusions are presented.
The UST Incident meets the following conditions for an Intermediate Risk classification:
A.Contaminant levels in the groundwater at the site exceed the Gross Contamination Levels.
B.Free product was measured in monitor well MW-13.
Based on the above, the following recommendations are presented:
1. Continue to monitor for stability of the dissolved constituent plume.
2.Remove free product at the site.
3.Reduce VOC concentrations to less than the Gross Contamination Levels.
Appendices
Appendix I – Figures
SCALE:
DATE:
PROJECT NUMBER
FIGURE NO.Drawing Path: Q:\4305\2017\17-229 - NEEDHAM SERVICE STATION\Needham Figures.dwgN
0 1000 2000
(IN FEET)GRAPHIC SCALE (IN FEET)GRAPHIC SCALE
NEEDHAM SERVICE STATION
719 EAST MAIN STREET
PILOT MOUNTAIN, SURRY COUNTY, NORTH CAROLINA
1
4305-17-229
DEC. 2017
AS SHOWNSITE VICINITY MAP
(Site ID: 3510)
SITE
SOURCE: PILOT MOUNTAIN, NC QUADRANGLE, 7.5-MINUTE SERIES US TOPO (2013).
N016080 (IN FEET)GRAPHIC SCALE (IN FEET)GRAPHIC SCALESOURCE: SITE BASE MAP DEVELOPED FROM 2014 AERIAL PHOTOGRAPH.LEGEND- MONITORING WELL LOCATION- UNDERGROUND STORAGE TANKUSTFORMERUSTBASINFORMERNEEDHAM'SSERVICESTATIONSITEHURSTGARAGEFORMERDISPENSER ISLANDMAIN STBLDGBLDGBLDGMW-10MW-11MW-9MW-8MW-7MW-5MW-3MW-2MW-6RMW-1RMW-13MW-14MW-12FIGURE NO.SCALE:DATE:PROJECT NUMBER2PILOT MOUNTAIN, SURRY COUNTY, NORTH CAROLINA719 EAST MAIN STREETNEEDHAM SERVICE STATIONAS SHOWNDEC. 20174305-17-229SITE MAP(Site ID: 3510)
FIGURE NO.Drawing path: Q:\4305\2017\17-229 - NEEDHAM SERVICE STATION\Needham Figures.dwg
PROJECT NUMBERDATE:SCALE:N060120 (IN FEET)GRAPHIC SCALE (IN FEET)GRAPHIC SCALENEEDHAM SERVICE STATION
719 EAST MAIN STREET
PILOT MOUNTAIN, SURRY COUNTY, NORTH CAROLINA3DEC. 2017GROUNDWATER CONTOUR MAP
(Site ID: 3510)AS SHOWN4305-17-229LEGEND- MONITORING WELL LOCATION- UNDERGROUND STORAGE TANK- GROUNDWATER CONTOUR- MEASURED GROUNDWATER ELEVATION- NOT MEASURED- GROUNDWATER FLOW DIRECTIONUST(60.97)SOURCE: SITE BASE MAP DEVELOPED FROM 2014 AERIAL PHOTOGRAPH.FORMERUST BASINFORMERNEEDHAM'SSERVICESTATIONSITEHURSTGARAGEFORMERDISPENSERISLANDMAIN STBLDGBLDGBLDGMW-10MW-11MW-9MW-8MW-7MW-5MW-3MW-2MW-6RMW-1RMW-13MW-12(NM)(60.97)(60.69)(61.27)(63.03)(51.96)(58.16)(60.28)(NM)(60.49)(NM)(NM)(NM)(NM)MW-1459.0
60.061.062.063.0NOTE: MONITORING WELLS GROUNDWATER MEASURED ON NOVEMBER 13, 2017
FIGURE NO.Drawing path: Q:\4305\2017\17-229 - NEEDHAM SERVICE STATION\Needham Figures.dwg
PROJECT NUMBERDATE:SCALE:N060120 (IN FEET)GRAPHIC SCALE (IN FEET)GRAPHIC SCALENEEDHAM SERVICE STATION
719 EAST MAIN STREET
PILOT MOUNTAIN, SURRY COUNTY, NORTH CAROLINA4DEC. 2017GROUNDWATER CONSTITUENT MAP
(Site ID: 3510)AS SHOWN4305-17-229LEGEND- MONITORING WELL LOCATION- UNDERGROUND STORAGE TANKUSTSOURCE: SITE BASE MAP DEVELOPED FROM 2014 AERIAL PHOTOGRAPH.FORMERUST BASINFORMERNEEDHAM'SSERVICESTATIONSITEHURSTGARAGEFORMERDISPENSERISLANDMAIN STBLDGBLDGBLDGMW-10MW-11MW-9MW-8MW-7MW-5MW-3MW-2MW-6RMW-1RMW-13MW-12(NS)MW-14MW-9ug/L1,2-Dichloroethane5.51,2-Dichloropropane0.69Benzene23Mertyl tert-butyl ether46MW-7ug/LBenzene2,800Ethylbenzene1,000Isopropylbenzene (Cumene)86 JTotal Xylenes558Mertyl tert-butyl ether (MTBE)93Naphthalene550n-Propylbenzene130MW-14ug/L1,2,4-Trimethylbenzene2,7001,2 Dibromomethane (EDB)1101,3,5 Trimethylbenzene6202-Hexanone (MBK)1,100Benzene9,000Diisopropyl Ether (DIPE)110Ethylbenzene2,700Isopropylbenzene (Cumene)120Total Xylenes16,100Mertyl tert-butyl ether (MTBE)2,100Naphthalene630n-Butylbenzene79n-Propylbenzene330Toluene15,000MW-12ug/LTetrachloroethylene2.4MW-13Free Product @ 0.89 ftMW-6Rug/L1,2,4-Trimethylbenzene2,7001,2 Dibromomethane (EDB)210Benzene16,000Diisopropyl Ether (DIPE)74Ethylbenzene3,400Total Xylenes19,000Mertyl tert-butyl ether (MTBE)310Naphthalene730n-Butylbenzene72n-Propylbenzene330Toluene32,000MW-11Not SampledMW-8Not SampledMW-5Not SampledMW-10Not SampledMW-3Not SampledMW-1RNot SampledMW-2Not SampledNOTE: MONITORING WELLS SAMPLED ON NOVEMBER 13, 2017
FIGURE NO.Drawing path: Q:\4305\2017\17-229 - NEEDHAM SERVICE STATION\Needham Figures.dwg
PROJECT NUMBERDATE:SCALE:N060120 (IN FEET)GRAPHIC SCALE (IN FEET)GRAPHIC SCALENEEDHAM SERVICE STATION
719 EAST MAIN STREET
PILOT MOUNTAIN, SURRY COUNTY, NORTH CAROLINA5DEC. 2017BENZENE ISOCONCENTRATION CONTOUR MAP
(Site ID: 3510)AS SHOWN4305-17-229LEGEND- MONITORING WELL LOCATION- UNDERGROUND STORAGE TANK- NOT SAMPLED- FREE PRODUCT- BENZENE ISOCONCENTRATION CONTOUR- MICROGRAMS PER LITER- FREE PRODUCTUSTSOURCE: SITE BASE MAP DEVELOPED FROM 2014 AERIAL PHOTOGRAPH.FORMERUST BASINFORMERNEEDHAM'SSERVICESTATIONSITEHURSTGARAGEFORMERDISPENSERISLANDMAIN STBLDGBLDGBLDGMW-10MW-11MW-9MW-8MW-7MW-5MW-3MW-2MW-6RMW-1RMW-13MW-12(NS)(NS)(NS)(NS)(NS)(NS)(FP)ug/LMW-142L STANDARD:1 ug/LGROSS CONTAMINATION LEVEL:5,000 ug/LSOLUBILITY OF BENZENE IN WATER:1.79 g/L (https://socratic.org)(0.61)(9,000)(NS)(NS)(16,000)(NS)(23)(2,800)110
0
5,
0
0
0NOTE: MONITORING WELLS SAMPLED ON NOVEMBER 13, 2017
FIGURE NO.Drawing path: Q:\4305\2017\17-229 - NEEDHAM SERVICE STATION\Needham Figures.dwg
PROJECT NUMBERDATE:SCALE:N060120 (IN FEET)GRAPHIC SCALE (IN FEET)GRAPHIC SCALENEEDHAM SERVICE STATION
719 EAST MAIN STREET
PILOT MOUNTAIN, SURRY COUNTY, NORTH CAROLINA6DEC. 2017EDB ISOCONCENTRATION CONTOUR MAP
(Site ID: 3510)AS SHOWN4305-17-229SOURCE: SITE BASE MAP DEVELOPED FROM 2014 AERIAL PHOTOGRAPH.FORMERUST BASINFORMERNEEDHAM'SSERVICESTATIONSITEHURSTGARAGEFORMERDISPENSERISLANDMAIN STBLDGBLDGBLDGMW-10MW-11MW-9MW-8MW-7MW-5MW-3MW-2MW-6RMW-1RMW-13MW-14MW-12(NS)(NS)(NS)(NS)(NS)(NS)NOTE: MONITORING WELLS SAMPLED ON NOVEMBER 13, 2017LEGEND- MONITORING WELL LOCATION- UNDERGROUND STORAGE TANK- EDB CONCENTRATION IN GROUNDWATER- NOT SAMPLED- EDB ISOCONCENTRATION CONTOUR- ETHYLENE DIBROMIDE- MICROGRAMS PER LITER- FREE PRODUCTUST(210)(NS)EDBug/L0.
0
2
50(<0.5)(110)(210)(NS)(<25)(<0.5)(NS)2L STANDARD:0.02 ug/LGROSS CONTAMINATION LEVEL:50 ug/LSOLUBILITY OF ETHYLENE DIBROMIDE IN WATER:0.404g/100g(http://pmep.cce.cornell.edu)
Appendix II – Tables
TABLE 1
UST SYSTEM INFORMATION
Needham Service Station, (Incident No.: 3510, UST #: WS-2467)
Pilot Mountain, Surry County, North Carolina
S&ME Project # 4305-17-229
UST Facility ID # 0-00-000008029 Revision Date: 11/28/2017
UST
ID Number
Current/Last
Contents *
Previous
Contents *
Capacity
(gallons)
Construction
Details **
Tank
Dimensions
D/L (ft)
Description of
Associated Piping
and Pumps
Date UST
Installed
(mm/dd/yy)
Status of UST ***
Was Release
Associated With
UST System?
(Yes/No)
1 Gasoline Unknown 4,000 Unknown Approx. 5 x 28 Unknown Unknown Closed by removal;
10/22/1991 Yes
2 Gasoline Unknown 4,000 Unknown Approx. 5 x 28 Unknown Unknown Closed by removal;
10/22/1991 Yes
3 Gasoline Unknown 4,000 Unknown Approx. 5 x 28 Unknown Unknown Closed by removal;
10/22/1991 Yes
Incident
Number
Material
Released
Date of
Release Description of Release
3510 Gasoline Unknown
* : Gasoline (unleaded or leaded), diesel, used oil, waste oil, aviation fuel, etc., or pesticides, non-halogenated or halogenated solvents, etc.
** : Fiberglass (single- or double-walled), steel (single- or double-walled), steel with FRP (single- or double-walled), steel with liner, other, unknown.
*** : Currently operational, not in use or temporarily closed (specify date), permanently closed in place (specify date), permanently closed by removal (specify date)
A release due to a leaking elbow joint in the product pipeline was reported to the Surry County Fire Marshall. Following
removal of the tanks, analysis of two soil samples collected from the base of the excavation by Method 5030 resulted in total
petroleum hydrocarbon concentrations of 68 parts per million (ppm) and 350 ppm. Free product was reported in a monitor
well installed near the tank basin. (UST Closure Report identified Facility ID No. as 0-008960)
UST Database (previous file): C.B.ROBERSON, INC. OWNER, Free Product id'd in MW; sampled by consultant for nearby
property. State Lead request sent 9/30/02. Diane Thomas is reviewing file as of 1/27/03. The site was accepted for State Lead on
July 9, 2003. Sent to CO on 12/29/2005.
TABLE 2
UST OWNER INFORMATION
Needham Service Station, (Incident No.: 3510, UST #: WS-2467)
Pilot Mountain, Surry County, North Carolina
S&ME Project # 4305-17-229
UST Facility ID # 0-00-000008029 Revision Date: 11/28/2017
1, 2, 3 C.B. Roberson Unknown to 10/22/1991 3510 Owner
-
Incident
Number
Owner or
Operator?
Address Telephone Number
UST/AST ID
Number(s)
Name of Owner or
Operator
Dates of Ownership /
Operation [(m/dd/yy) to
(m/dd/yy)]
P.O. Box 667 Halifax, VA
TABLE 3
WELL CONSTRUCTION AND LIQUID LEVEL DATA
Pilot Mountain, Surry County, North Carolina
S&ME Project # 4305-17-229
UST Facility ID # 0-00-000008029 Revision Date: 11/28/2017
Well
ID
Date
Installed
Date
Water Level
Measured
Well
Casing
Depth
(ft BGS)
Well
Casing
Diameter
(in)
Depth
of Well
(ft-BGS)
Top of
Casing
Elevation*
(ft)
Depth to
Water
from Top
of Casing
(ft)
Free
Product
Thickness
** (ft)
Groundwater
Elevation*
(ft)
Latitude
(decimal)
Longitude
(decimal)
11/20/2008 38.28 0.00 61.721/5/2010 36.79 0.00 63.2110/15/2010 35.10 0.00 64.905/24/2011 36.16 0.00 63.842/22/2012 36.52 0.00 63.489/19/2012 36.42 0.00 63.583/13/2015 36.59 0.00 63.41
11/20/2008 41.16 0.00 59.68
1/5/2010 39.68 0.02 61.1610/25/2010 37.00 0.00 63.84
5/24/2011 39.03 0.00 61.81
2/23/2012 39.87 0.00 60.97
9/19/2012 39.79 0.00 61.054/14/2014 37.97 0.00 62.87
3/13/2015 39.45 0.00 61.39
11/13/2017 39.87 0.00 60.97
11/20/2008 36.85 0.00 63.471/5/2010 25.49 0.00 74.8310/25/2010 24.95 0.00 75.37
5/24/2011 14.09 0.00 86.23
2/23/2012 2.81 0.00 97.519/19/2012 27.58 0.00 72.743/13/2015 25.63 0.00 74.69
11/20/2008 39.34 0.00 58.72
1/5/2010 37.86 0.00 60.2010/15/2010 36.40 0.00 61.665/11/2011 37.22 0.00 60.84
2/22/2012 37.87 0.00 60.19
9/19/2012 38.09 0.00 59.974/14/2014 36.09 0.00 61.9711/20/2008 41.89 0.14 59.47
1/5/2010 40.46 0.11 60.90
10/25/2010 39.13 0.00 62.23
5/24/2011 39.62 0.00 61.742/22/2012 40.21 0.00 61.15
9/19/2012 40.53 0.00 60.83
4/14/2014 38.63 0.00 62.73
3/13/2015 40.18 0.00 61.1811/13/2017 40.87 0.00 60.49
11/20/2008 43.63 0.00 58.57
1/5/2010 40.98 0.00 61.22
10/15/2010 41.00 0.00 61.205/11/2011 41.38 0.00 60.822/22/2012 42.18 0.00 60.02
9/19/2012 42.50 0.00 59.70
4/14/2014 40.37 0.00 61.833/13/2015 42.14 0.00 60.0611/13/2017 41.92 0.00 60.28
11/20/2008 43.55 0.00 57.73
1/5/2010 41.09 0.00 60.1910/25/2010 41.14 0.00 60.145/11/2011 41.83 0.00 59.45
2/22/2012 41.99 0.00 59.29
9/19/2012 42.55 0.00 58.734/14/2014 39.98 0.00 61.3011/13/2017 43.12 0.00 58.16
11/20/2008 27.74 0.00 51.66
1/5/2010 25.91 0.00 53.49
10/25/2010 26.11 0.00 53.295/11/2011 26.69 0.00 52.71
2/23/2012 26.25 0.00 53.15
9/19/2012 27.22 0.00 52.18
4/14/2014 24.56 0.00 54.843/13/2015 26.37 0.00 53.03
11/13/2017 27.44 0.00 51.96
11/20/2008 40.01 0.00 58.79
1/5/2010 38.54 0.00 60.2610/15/2010 37.00 0.00 -37.005/24/2011 38.12 0.00 -38.12
2/22/2012 38.74 0.00 -38.74
9/19/2012 38.70 0.00 60.1011/20/2008 7.46 0.00 43.921/5/2010 6.15 0.00 45.23
10/25/2010 7.17 0.00 44.21
5/11/2011 6.57 0.00 44.812/23/2012 6.55 0.00 44.839/19/2012 7.87 0.00 43.51
3/13/2015 36.54 0.00 63.54
11/13/2017 37.05 0.00 63.033/13/2015 40.10 0.64 61.4511/13/2017 41.07 0.89 60.69
3/13/2015 38.78 0.00 62.01
11/13/2017 39.52 0.00 61.27
NOTES:
* : Reference Point for Elevation Measurements:Benchmark Datum:Benchmark Elevation: 100.00 ft
Assumed or Measured:
** : If Free Product is present in a well, groundwater elevation should be calculated by: [Top of Casing Elevation - Depth to Water] + [free product thickness x 0.8581]
ft-BGS = feet below ground surface NM = Not Measured NA = Not Applicable
ND = Not Detected NG = Not Gauged
Needham Service Station, (Incident No.: 3510, UST #: WS-2467)
Screen
Interval
(ft-BGS)
MW-1R
MW-13
MW-12
MW-11
MW-9
MW-8
MW-10
MW-3
MW-5
MW-7
MW-2
MW-6R
36.38298056 -80.45305556
-80.45555556
36.38330278 -80.45277778
100.00
44.5 4 44.5 - 54.5 100.84
MW-1R top of casing
Measured
MW-14
36.38279722 -80.45361111
36.38261944 -80.45333333
36.38241667 -80.45333333
36.38273611 -80.45277778
36.38268611 -80.45333333
36.38287500 -80.45305556
36.38326667 -80.45361111
36.38256111 -80.45333333
--
36.38307500 -80.45305556
36.38262222
35 2 35 - 50 49.3
50 101.36
Unknown
100.32
98.06
36.5 4 36.5 - 54
52.3
49.2
41.5 2 41.5 - 51.5 49.7
35 - 50
28
31
31
2
2
2
2
2
2
2
2
2
35
44
42
Unknown
30
28 - 43
31 - 46
31 - 46 46.3
45.8
43.9
44 - 54
42 - 52
Unknown
30 - 45
Unknown
100.08
101.00
100.79
51.38
102.20
101.28
79.40
98.80
18.8
45
37.5
45.5
54.5
05/21/07
03/12/15
03/12/15
03/12/15
1/17/05
11/11/87
11/11/87
1988
Aug-04
1988
1988
1988
1/17/2005
Page 3 of 5
UST Facility ID # 0-00-000008029 Revision Date: 11/28/2017
SM6200B SM6200B
Well
ID
Date
Collected
(mm/dd/yy)
Incident
Phase
TolueneEthylbenzeneXylenes (total)Methyl Tert Butyl EtherDiisopropyl etherAcetonen-Butylbenzenesec-butylbenzenen-PropylbenzeneStyreneIsopropyl benzene4-IsopropyltolueneNaphthaleneMethylene chlorideMethyl Butyl Ketone(2-Hexanone)Methyl Ethyl Ketone(2-Butanone)Methyl Isobutyl KetoneChloromethaneChloroformTrichloroetheneTetrachloroethene1,2-Dibromoethane(EDB)1,2-Dichloroethane1,2-Dichloropropane1,2,3-Trichloropropane1 600 600 500 20 70 6,000 70 70 70 70 70 25 6 5 280 4,000 100 3 70 3 0.7 0.02 0.4 0.6 0.005 400 400
5,000 260,000 84,500 85,500 20,000 70,000 600,000 6,900 8,500 30,000 70,000 25,000 NL 6,000 5,000 280,000 400,000 100,000 3,000 70,000 3,000 700 50 400 600 NL 28,500 25,000
11/20/08 Monitoring ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 10.5 ND ND ND ND ND ND
01/05/10 Monitoring <0.5 <0.5 <0.5 <0.5 1.9 <0.5 ND <0.5 <0.5 <0.5 <0.5 <0.5 ND <2.0 <2.0 ND ND ND <1.0 ND <1.0 18.6 <0.5 <0.5 <0.5 <0.5 0.6 <0.5
10/15/10 Monitoring <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 ND <0.5 <0.5 <0.5 <0.5 <0.5 ND <2.0 <2.0 ND ND ND <1.0 ND <1.0 24.4 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5
02/22/12 Monitoring <0.054 <0.057 <0.054 <0.17 1.2 <0.042 <1.5 <0.059 <0.054 <0.059 <0.034 <0.034 <1.5 <0.094 <0.073 <0.11 <0.83 <0.048 <0.032 <0.053 0.27 J 23 <0.041 <0.054 <0.062 <0.090 <0.038 <0.038
09/19/12 Monitoring <0.054 <0.057 <0.054 <0.17 0.68 J <0.042 <1.5 <0.059 <0.054 <0.059 <0.034 <0.034 <1.5 <0.094 <0.073 <0.11 <0.83 <0.048 <0.032 <0.053 <1.0 31 <0.041 <0.054 <0.062 <0.090 <0.038 <0.038
11/20/08 Monitoring 17,800 25,400 2,390 12,800 2,900 630 ND 145 28.3 500 ND 133 ND 1,010 ND ND ND ND ND ND ND ND 145 702 11.5 ND 3,520 970
01/05/10 Monitoring
10/25/10 Monitoring 13,700 20,100 2,610 15,380 2,390 418 ND <125 <125 499 <125 152 ND 910 <500 ND ND ND <250 ND <125 <125 <125 <125 <125 <125 3,750 1,020
05/24/11 Monitoring 1,900 3,520 717 5,250 210 42 ND <50.0 <5.0 123 <5.0 44 ND 353 <20.0 ND ND ND <10.0 ND <5.0 <5.0 15 13.5 <5.0 <5.0 1,580 444
02/23/12 Monitoring 7,400 8,600 900 5,100 1,400 190 1000 J <12 <11 120 <6.8 86 J <12 270 <15 200 650 J 100 J <6.4 <11 <8.8 <19 <8.2 <11 <12 <18 960 340
09/19/12 Monitoring 18,000 27,000 3,000 17,000 2,500 400 2,400 53 14 310 36 99 7.4 830 <20 490 560 190 <5.0 <5.0 <5.0 <5.0 140 150 <5.0 <5.0 2,800 590
03/13/15 Monitoring 740 645 66.9 311 119 18.7 ND <0.50 <0.50 6.6 0.95 2.6 ND 14.4 <2.0 ND ND ND <1.0 <0.50 <0.50 <0.50 7.1 5.0 <0.50 <0.50 58.5 16.9
11/20/08 Monitoring 0.76 1 ND 1.09 2.32 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
01/05/10 Monitoring 0.97 4.9 2.3 14.4 <0.5 <0.5 ND <0.5 <0.5 0.94 <0.5 <0.5 ND 2.7 <2.0 ND ND ND <1.0 ND <1.0 <1.0 <0.5 <0.5 <0.5 <0.5 7.5 2.2
10/25/10 Monitoring <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 ND <0.5 <0.5 <0.5 <0.5 <0.5 ND <2.0 <2.0 ND ND ND <1.0 ND <1.0 <1.0 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5
05/24/11 Monitoring <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 ND <0.5 <0.5 <0.5 <0.5 <0.5 ND <2.0 <2.0 ND ND ND <1.0 ND <1.0 <1.0 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5
02/23/12 Monitoring 0.29 J <0.057 <0.054 <0.17 <0.056 <0.042 <1.5 <0.059 <0.054 <0.059 <0.034 <0.034 <0.059 <0.094 <0.073 <0.11 <0.83 <0.048 <0.032 4.2 <0.044 <0.096 <0.041 <0.054 <0.062 <0.090 <0.038 <0.038
09/19/12 Monitoring <0.5 <0.057 <0.054 <0.17 <0.056 <0.042 <1.5 <0.059 <0.054 <0.059 <0.034 <0.034 <0.059 <0.094 <0.073 <0.11 <0.83 <0.048 <0.032 <0.053 <0.044 <0.096 <0.041 <0.054 <0.062 <0.090 <0.038 <0.038
11/20/08 Monitoring 343 38.7 32.2 270 227 17.3 ND 23.7 8.74 20.1 ND 48.9 ND 273 ND ND ND ND ND ND ND ND ND ND ND ND 85 20
01/05/10 Monitoring 106 8.1 14 127.3 101 7.1 ND 88.1 <0.5 58.4 <0.5 53.5 ND 183 <2.0 ND ND ND <1.0 ND <1.0 <1.0 <0.5 2.8 <0.5 <0.5 186 90.9
10/15/10 Monitoring 14.8 <1.2 <1.2 18.7 35.5 <1.2 ND <1.2 <1.2 13.3 <1.2 15.7 ND 65.5 <5 ND ND ND <2.5 ND <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 66.7 19.7
05/11/11 Monitoring 26.7 <1.0 <1.0 7.9 50.1 2.9 ND 45.4 <1.0 10.6 <1.0 13.8 ND 41.6 <4.0 ND ND ND <2.0 ND <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 41.8 15
02/22/12 Monitoring 83 <0.57 <0.54 <1.7 170 10 <15 12 6.7 4.9 J <0.37 16 6.2 58 <0.73 <1.1 <8.3 <0.48 0.32 <0.53 <0.44 <0.96 <0.41 3.0 J <0.62 <0.90 11 7.7
09/19/12 Monitoring 44 <0.28 <0.27 <0.86 75 6 <7.6 15 5.8 5.8 <0.17 19 <0.30 77 <0.36 <0.56 <4.1 <0.24 <0.16 <0.26 <0.22 <0.48 <0.20 <0.27 <0.31 <0.45 11 5.1
11/20/08 Monitoring
01/05/10 Monitoring
10/25/10 Monitoring 11,300 9,040 2,270 12,770 1,200 220 ND <50 <50 323 <50 11 ND 771 <200 ND ND ND <100 ND <50 <50 <50 95.6 <50 <50 2,190 593
05/24/11 Monitoring 15,300 19,800 2,630 14,070 1,010 190 ND <50.0 <50.0 301 <50.0 95 ND 519 <200 ND ND ND <100 ND <50.0 <50.0 164 122 <50.0 <50.0 2,150 477
02/22/12 Monitoring 19,000 37,000 2,700 13,000 800 120 J <600 140 J <22 330 <14 190 J <24 710 <29 290 J <330 130 J <13 <21 <18 <38 310 <22 <25 <36 2,000 620
09/19/12 Monitoring 19,000 27,000 3,400 19,000 1,400 280 1,400 82 30 460 48 140 <3.0 970 <3.6 490 420 200 <1.6 <2.6 <2.2 <4.8 210 140 <3.1 <4.5 3,100 750
11/13/17 Monitoring 16,000 32,000 3,400 19,000 310 74 <2500 72 19 J 330 <25 120 <100 730 <250 <250 240 J <500 <25 <25 <25 <25 210 <25 <25 <25 2,700 <100
11/20/08 Monitoring 15,500 1,560 1,490 6,800 698 144 ND 40.1 13.5 191 ND 106 ND 787 ND ND ND ND ND ND ND ND 7.99 ND 31 ND 1,070 259
01/15/10 Monitoring 2,620 307 303 2,980 367 35.3 ND <0.5 <0.5 9.7 3.6 11.1 ND 475 <2.0 ND ND ND <1.0 ND <1.0 <1.0 18.2 46 10 10 494 109
10/15/10 Monitoring 8,510 315 1,280 6,400 621 73.8 ND 13.4 <12.5 124 <12.5 93 ND 544 106 ND ND ND <25 ND <12.5 <12.5 <12.5 69.7 15.8 <12.5 694 148
05/11/11 Monitoring 13,400 397 1,030 4,410 697 90.3 ND <50.0 <50.0 121 <50.0 95.4 ND 644 <200 ND ND ND <100 ND <50.0 <1.0 <50.0 93.6 <50.0 <50.0 409 91
02/22/12 Monitoring 10,000 400 1,300 5,000 480 60 J <300 88 J <11 180 <6.8 140 <12 650 <15 <200 <1000 150 J <6.4 <11 <8.8 <19 <8.2 56 J <12 <18 650 230
09/19/12 Monitoring 6,300 500 2,500 9,600 180 34 <3.0 33 <2.7 320 29 120 <3.0 850 <3.6 <5.6 <41 130 <1.6 <2.6 <2.2 <4.8 <2.0 <2.7 <3.1 <4.5 1,500 310
03/13/15 Monitoring 6,430 326 1,190 3,200 91.2 21.9 ND <2.0 5.9 120 9.5 51.5 ND 411 50.4 ND ND ND <4.0 <2.0 <2.0 <2.0 <2.0 17.2 11.9 <2.0 410 782
11/13/17 Monitoring 2,800 220 1,000 658 93 <25 <2500 23 J 9.5 J 130 <25 86 <100 550 <250 <250 <250 94 J <25 <25 <25 <25 <25 <25 <25 <25 19 J <100
11/20/08 Monitoring 2,820 8.81 73.2 7.58 534 64.9 ND 12 5.97 20.2 ND 39.3 ND 67.2 ND ND ND ND ND ND ND ND ND 138 12.3 ND 0.595 ND
01/05/10 Monitoring <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 ND <0.5 <0.5 <0.5 <0.5 <0.5 ND <2.0 <2.0 ND ND ND <1.0 ND <1.0 <1.0 <0.5 <0.5 <0.5 <0.5 0.78 <0.5
10/25/10 Monitoring 632 3.2 17.8 10 162 16.1 ND 3.9 1.5 6.1 <0.5 10.5 ND 8.0 <2.0 ND ND ND <1.0 ND <1.0 0.53 <0.5 20 <0.5 <0.5 <0.5 2.1
05/11/11 Monitoring 729 5.2 32.7 <2.5 172 15.4 ND <2.5 <2.5 7.4 <2.5 9.5 ND 23.5 <10.0 ND ND ND <5.0 ND <2.5 <1.0 <2.5 22.1 <2.5 <2.5 <2.5 <2.5
02/22/12 Monitoring 840 <1.1 26 <3.4 220 21 <30 12 9.2 J 9.8 J <0.68 28 <1.2 16 J <1.5 <17 <2.2 <0.96 <0.64 <1.1 <0.88 <1.9 <0.82 28 5.0 J <1.8 <0.76 <0.76
09/19/12 Monitoring 500 <0.28 12 <0.86 180 14 <7.6 6 4 4 <0.17 24 <0.30 4.0 J <0.36 <0.56 <4.1 <0.24 <0.16 <0.26 <0.22 <0.48 <0.20 21 3.6 <0.45 <0.19 <0.19
Free Product - Not Sampled
Free Product - Not Sampled
Free Product - Not Sampled 1,3,5-TrimethylbenzeneAnalytical Method >>
Contaminant of Concern >>Benzene1,2,4-TrimethylbenzeneTable 4
Summary of Water Sampling Results
Needham Service Station, (Incident No.: 3510, UST #: WS-2467)
Pilot Mountain, Surry County, North Carolina
2L Standard
GCL
MW-2
MW-3
MW-5
MW-6R
MW-1R
MW-7
MW-8
S&ME Project No. 4305-17-229
Page 4 of 5
UST Facility ID # 0-00-000008029 Revision Date: 11/28/2017
SM6200B SM6200B
Well
ID
Date
Collected
(mm/dd/yy)
Incident
Phase
TolueneEthylbenzeneXylenes (total)Methyl Tert Butyl EtherDiisopropyl etherAcetonen-Butylbenzenesec-butylbenzenen-PropylbenzeneStyreneIsopropyl benzene4-IsopropyltolueneNaphthaleneMethylene chlorideMethyl Butyl Ketone(2-Hexanone)Methyl Ethyl Ketone(2-Butanone)Methyl Isobutyl KetoneChloromethaneChloroformTrichloroetheneTetrachloroethene1,2-Dibromoethane(EDB)1,2-Dichloroethane1,2-Dichloropropane1,2,3-Trichloropropane1,3,5-TrimethylbenzeneAnalytical Method >>
Contaminant of Concern >>Benzene1,2,4-TrimethylbenzeneTable 4
Summary of Water Sampling Results
Needham Service Station, (Incident No.: 3510, UST #: WS-2467)
Pilot Mountain, Surry County, North Carolina
2L Standard
S&ME Project No. 4305-17-229
11/20/08 Monitoring 408 ND ND ND 146 10.6 ND 0.55 ND ND ND 2.04 ND 16.7 ND ND ND ND ND ND ND ND ND 22.3 0.67 ND ND ND
01/05/10 Monitoring 446 <0.5 <0.5 2.66 192 15.6 ND 0.62 <0.5 <0.5 <0.5 2.8 ND 14.9 <2.0 ND ND ND <1.0 ND <1.0 <1.0 <0.5 23.6 1.5 <0.5 1.2 <05
10/25/10 Monitoring 115 <0.5 <0.5 <0.5 64.9 4.9 ND <0.5 <0.5 <0.5 <0.5 2 ND 7.1 <2.0 ND ND ND <1.0 ND <1.0 <1.0 <0.5 7.6 <0.5 <0.5 <0.5 1.3
05/11/11 Monitoring 177 <0.50 <0.50 <0.50 150 10.1 ND 1.9 1.9 <0.50 <0.50 1.1 ND 6.4 <2.0 ND ND ND <1.0 ND <0.50 <1.0 <0.50 20.5 1.4 <2.0 <0.50 <0.50
02/23/12 Monitoring 240 <0.57 <0.54 <1.7 220 16 <15 4.4 J <0.54 <0.59 <0.34 8.4 <0.59 7.2 J <0.73 <1.1 <8.3 <0.48 <0.61 <0.53 <0.50 <0.96 <0.41 27 <0.62 <0.90 <0.38 <0.38
09/19/12 Monitoring 34 <0.057 <0.054 <0.17 51 3.3 <0.059 <0.059 <0.054 <0.059 <0.034 <0.034 <0.053 1.6 <0.073 <0.11 <0.83 <0.048 <0.032 <0.053 <0.044 <0.096 <0.041 6.7 0.55 <0.090 <0.038 <0.038
03/13/15 Monitoring 16.8 <0.50 <0.50 <1.50 78.1 5.5 ND <0.50 <0.50 <0.50 <0.50 0.82 ND <2.0 <2.0 ND ND ND <1.0 <0.50 <0.50 <0.50 <0.50 11.1 1.1 <0.50 <0.50 <0.50
11/13/17 Monitoring 23 <0.50 <0.50 0.19 J 46 3.5 <50 0.24 J 0.25 J <0.50 <0.50 0.82 J <2.0 2.7 J <5.0 <5.0 <5.0 <10 <2.0 <0.50 <0.50 <0.50 <0.50 5.5 0.69 <0.50 <0.50 <2.0
11/20/08 Monitoring ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
01/05/10 Monitoring <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 ND <0.5 <0.5 <0.5 <0.5 <0.5 ND <2.0 <2.0 ND ND ND <1.0 ND <1.0 <1.0 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5
10/15/10 Monitoring <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 ND <0.5 <0.5 <0.5 <0.5 <0.5 ND <2.0 <2.0 ND ND ND <1.0 ND <1.0 <1.0 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5
05/24/11 Monitoring <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 ND <0.5 <0.5 <0.5 <0.5 <0.5 ND <2.0 <2.0 ND ND ND <1.0 ND <1.0 <1.0 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5
02/22/12 Monitoring <0.054 <0.057 <0.054 <0.17 <0.056 <0.042 <1.5 <0.059 <0.054 <0.059 <0.034 <0.034 <0.059 <0.094 <0.073 <0.11 <0.83 <0.048 <0.032 <0.053 <0.044 <0.096 <0.041 <0.054 <0.062 <0.090 <0.038 <0.038
09/19/12 Monitoring <0.054 <0.057 <0.054 <0.17 <0.056 <0.042 <0.059 <0.059 <0.054 <0.059 <0.034 <0.034 <0.059 <0.094 <0.073 <0.11 <0.83 <0.048 <0.032 <0.053 <0.044 <0.096 <0.041 <0.054 <0.062 <0.090 <0.038 <0.038
11/20/08 Monitoring 236 ND ND 6.9 54.9 5.86 ND 1.57 1.21 ND ND 7.31 ND 30.1 ND ND ND ND ND ND 1.12 3.48 ND 21.6 1.49 ND 5.14 ND
01/05/10 Monitoring 88.7 <0.5 <0.5 3.9 29 3 ND 0.79 0.79 <0.5 <0.5 3.8 ND 15.9 <2.0 ND ND ND 3.1 ND 0.82 3.1 <0.5 8.3 0.85 <0.5 <0.5 <0.5
10/25/10 Monitoring 132 <0.5 <0.5 3.7 40.4 4.1 ND 1.1 <0.5 <0.5 <0.5 2.5 ND 21 <2.0 ND ND ND <1.0 ND 0.9 3.0 <0.5 10.4 1.1 <0.5 1.0 <0.5
05/11/11 Monitoring 87.2 <0.50 <0.50 1.3 24.2 2.2 ND 1.9 <0.50 <0.50 <0.50 0.94 ND 8 <2.0 ND ND ND <1.0 ND 0.55 2.1 <0.50 7.1 0.62 <0.50 <0.50 <0.50
02/23/12 Monitoring 56 <0.057 <0.054 1.6 23 2.4 <1.5 0.85 0.8 <0.059 <0.034 1.1 <0.059 12 <0.073 <0.11 <0.83 <0.048 <0.032 <0.053 0.65 2.7 <0.041 4.7 0.51 <0.090 0.52 <0.038
09/19/12 Monitoring 70 <0.057 <0.054 1.2 J 22 2.8 15 0.81 0.75 <0.059 <0.034 <0.034 <0.059 12 <0.073 <0.11 <0.83 <0.048 <0.032 <0.053 0.53 2.9 <0.041 8.8 <0.062 <0.090 <0.038 <0.038
03/13/15 Monitoring 6.1 52.8 31.6 250.2 4 0.57 ND 2.5 <0.50 14.1 <0.50 3.6 ND 2.4 <2.0 ND ND ND <1.0 9.1 <0.50 <0.50 0.44 <0.50 <0.50 <0.50 75.5 30.4
11/13/17 Monitoring 0.61 0.22 J <0.50 0.59 J 4.8 3.1 <50 <0.50 <0.50 <0.50 <0.50 <2.0 <2.0 <5.0 <2.0 ND ND ND <1.0 3.2 <0.50 2.4 <0.50 <0.50 <0.50 <0.50 <1.8 0.30 J
03/13/15 Monitoring
11/13/17 Monitoring
03/13/15 Monitoring 9,780 15200 2470 13070 2170 82.5 ND <25.0 <25.0 317 <25.0 116 ND 630 354 ND ND ND <50.0 <25.0 <25.0 <25.0 85.5 41.9 <25.0 <25.0 2,090 553
11/15/17 Monitoring 9,000 15,000 2,700 16,100 2,100 110 3,100 79 20 J 330 <25 120 <100 630 <250 1,100 1,100 200 J <25 <25 <25 <25 110 <25 <25 <25 2,700 620
11/20/08 Monitoring ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
01/15/10 Monitoring <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 ND <0.5 <0.5 <0.5 <0.5 <0.5 ND <2.0 <2.0 <0.5 <0.5 ND <1.0 <0.5 <1.0 <1.0 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5
Notes:
Results reported in micrograms per liter (µg/L)
NA = Not Analyzed Value Concentration exceeds the 2L Standard
--- : No detected above laboratory reporting limits.Value Concentration exceeds the GCL
2L Standard = 15A NCAC 2L .0202 Groundwater Quality Standard
2B Standard = 15A NCAC 2B Surface Water Quality Standard or EPA National Criteria
GCL = Gross Contamination Level
MW-12
MW-14
Free Product - Not Sampled
Free Product - Not Sampled
MW-9
MW-10
MW-11
WSW-1
MW-13
Page 5 of 5
Appendix III - Historical Documents
!
!
!
!
500 FEET
1,000 FEET
1,500 FEET
WSW-4
WSW-2
WSW-3
WSW-1
NC OneMap, NC Center for Geographic Information and Analysis, NC 911Board
WATER SUPPLY WELL LOCATION MAP
Needham Service Station, Incident # 3510East Main St. & East HWY 52 BypassPilot Mountain, North Carolina
7
4358-15-047
MEM WWW.SMEINC.COM
SCALE:
PROJECT NO:
DATE:
DRAWN BY:
FIGURE NO.
03-31-15
1 " = 500 'Q:\GIS\2015\4358-15-047 Needham Service Station\Maps\Fig7.mxd±
REFERENCE:GIS DATA LAYERS WERE OBTAINED FROM ESRI, INC. AND SURRY COUNTY GIS WEBSITE. PLEASENOTE THIS MAP IS FOR INFORMATIONAL PURPOSES ONLY. IT IS NOT MEANT FOR DESIGN, LEGAL, ORANY OTHER USES. THERE ARE NO GUARANTEES ABOUT ITS ACCURACY. S&ME, INC. ASSUMES NORESPONSIBILITY FOR ANY DECISION MADE OR ANY ACTIONS TAKEN BY THE USER BASED UPON THIS
!Active Water Supply Well
!Inactive Water Supply Well
Property Boundary
TABLE 3
SUMMARY OF SOIL ANALYTICAL RESULTS
NEEDHAM SERVICE STATION,INCIDENT 3510
EAST MAIN ST &EAST OLD US 52 JUNCTION
PII.OT MOUNTAIN,SURRY COUNTY,NORTH CAROLINA
S&ME PROJECT NO.4305-15-047
Sample
Depth (It)
Notes
MSCC:Maximum Soil Contaminant Concentration
NCDENR:North Carolina Department ol'Environmcnt and Natural Resources
All sample concentrations reported in milligrams per kilogram (rng/kg).
NS:Standard isnot established
NO:No data
NA:l'IoIanalyzed
••NCDENR Gasoline Range Organics (TPH·GRO)Action Level=10mg.lKg
BDL:below detection limit
All target compounds not listed in this table were reported as below the detection limit
Bold depicts constiuents detected above the sample practical quantitation limit.
Shaded:numbers indicate concentrations above NCDENR Soil-to-Groundwater (S-GWJ,Residential.or Industrial/Commercial MSCC
"@5::S>.~E.1:;-...,f._
N.
I1f.;-
Inj
Allison Tree Service Station
Cast of Characters:
Southside Oil Company,Inc--Virginia Corporation remains in "good standing"with
Va.Commonwealth Secretary of State.
C.B.Roberson,Inc.--????(still need to check with NC Secretary of State).
Bear Enterprises,Inc.--Corporation terminated by Va.Commonwealth Secretary of
State in 1992 for failure to submit an annual assessment and
annual report.
Bear-Alamance,Inc>-Corporation that operates fuel trucks that serve C.B.Roberson
service stations.Travis Mabe is only known truck driver in North
Carolina.
Timeline:
1981--On July 22,Southside Oil Company,Inc.(a Tucker W.McLaughlin company)purchases
C.B.Roberson,Inc.which owns several underground storage tanks in the state of
North Carolina.
1985--Congress passes a law mandating that UST owners notify the state of their tank's age,
size,type,location,and uses by May 8,1986.
1986--Tucker W Mcl.aughlin,as Secretary of C,B.Roberson,Inc.registers tanks at facilities
in question with C B.Roberson listed as owner (infiles???).
1987--A leak is detected at the Needham Service Station location..C B.Roberson
representatives acknowledge their responisibility to clean up the site on several
occasions and eventually remove the tanks.
1988--North Carolina.intitiates LPUST Fund to lesson burden on tank owners.According to
the plan,tank owners must pay annual tank fees to be contributed to the Fund.
1990--On January 17,C.B.Roberson writes a letter to ????in which he states that "c.B.
Roberson was sold to Southside Oil Co.which is owned by Tucker W.Mcl.aughlin",and
that the "sale included all assets such as underground tanks,above ground tanks,
buildings and all equipment.This sale was made on July 22,198]".
1990--On June 20,the DEM Budget Office receives a Petroleum Underground Storage Tank
Annual Fee Form/or Allison Tree Service Station.The owner is listed as Tucker W
Mclaughlin and it is signed by William W Mclaughlin,Secretary.
1990--On June II,the DEM Budget Office receives a letter from Bill Mcl.aughlin explaining
that,'The (tank)owner's name is C.B.Roberson,Inc.,not Tucker W McLaughlin."
1990--On July 1,C B.Roberson,Inc.and Bernard and Marie Willis d/b/a Allison Tree enter
into a lease agreement which provides,in part,that ''Roberson owns the following
equipment located at this location:one 2,000 gallon underground storage tank
and two 3,000 gallon underground storage tanks."The contract is signed by William W.
Mcl.aughlin as Secretary of C B.Roberson,Inc.
1991--On January 9,the DEM Budget Office receives a Petroleum Underground Storage Tank
Annual Fee Form for Allison Tree Service Station with the owner listed as C.B.
Roberson,Inc.and it is signed by William W.Mclaughlin,Secretary.
1991--On November 22 letter,Bill McLaughlin provides John Prather,Tax Management
Associates,Inc.with a tax depreciation schedule which includes a "list of stations at
which C.B.Roberson,Inc.owns the tanks and pumps./I The list includes:Allison Tree
Gulf,Lawson Hardware,Cox Tire &Battery,Needham Brothers,Fancy Gap Run-In,
and Mabe Brothers.
1992--On February 4,the DEM Budget Office receives a Petroleum Underground Storage
Tank Annual Fee Form for Allison Tree Service Station with the owner listed as C.B.
Roberson,Inc.and it is signed by William W.Mcl.aughlin,manager.
1993--On June 4,the DEM Budget Office receives a Petroleum Underground Storage
Tank Annual Fee Form for Allison Tree Service Station with the owner listed as C.B.
Roberson,Inc.and it is signed by Travis Mabe,truck driver ..
1993--On August 10,Donald Throckmorton and Tucker W.Mcl.aughlin (on Bear
Enterprises letterhead)write a letter to the owners of Allison Tree Service Station
informing them that "it is not in the best interest of the company (Bear Enterprises or
C.B.Roberson,Inc.?)to do the work"necessary to bring their underground tanks up to
current EPA standards.
C.B.Roberson arguments:
•C.B.Roberson never owned or installed the tanks.
=seems to be enough to show that they are atleast record owner (registration,tax records,tank
fee forms).
•When Southside bought CBR,they discontinued any oil related business involving these tanks.
--as recently as '86,Tucker McLaughlin registered the tanks,and as recently as '93,the
secretary ofCBR was paying the Petroleum Tank Fee.
•Just because a CBR employee without first-hand knowledge assumed that CBR owned the
tanks does not make it so.
=still pretty convincing evidence.
***Can we prove who installed the tanks?***
***Who has the burden of proof in this case?***
***18 there a copy of the contract between C.B.Roberson and Southside Oil?***
TANK CLOSURE ASSESSMENT REPORT FORNEEDHAM'S SERVICE STATIONPILOTMOUNTAIN,NORTH CAROLINA
1.0 Background
1.1 Introduction
C.B.Roberson,Inc.of Halifax.Virginia.owned three underground storage tanks locatedattheformersiteofNeedham's Grocery in Pilot Mountain,North Carolina.This facility
was operated under Facility ID#0-008960.Figure 1 illustrates the location of this
facility.This site is the location of a release incident which was investigated by Mr.
Stephen Kay of the NCDEHNR Winston Region on August 18,1987.The release wasattributedtoaleakingelbowintheundergroundpipingbetweenthetanksandpumps.Further assessment activities conducted by Engineering Tectonics of Winston Salem,NC
in 1987 and 1988 determined that pockets of free product and ground watercontaminationexistsatthissite.A decision was made by the tank owner to remove thethree(3)4,000 gallon gasoline underground storage tanks (lISTs)located at this site.Attachment A contains a copy of the Notice of intent to close these USTs (Form
GW/UST-3),along with a site investigation report (Form GW/UST-2).This reportcontainsinformationconcerningthefollowingactivitiesatthissite:
Tank closure activities conducted by Controlled Fuel Systems of Pilot Mountain,NC
Tank closure assessment activities conducted by Legacy Environmental Services,Inc.
2.0 Field Activities
2.1 USI Excayation
From measurements obtained during removal operations,a site map was developedwhichindicatesthelocationsoftheUSIswhichwereformerlylocatedatthisfacility.Figure 2 contains this site map.The storage tanks at this facility were grouped into onetankpitwhichcontained(3)4,000 gallon gasoline tanks.On October 22,1991,Controlled Fuel Systems personnel were mobilized to the project site and initiated thetankclosureproject.The project was begun by degassing and excavation of the 3 x4,000 gallon gasoline tanks.Petroleum odors were noted in the soils during the
excavation process;however,previous assessment activities conducted at the site haddeterminedthatcontaminationextendedwellbeyondthetank:pit area and the limits ofexcavationcapabilities.Consequently,no attempt was made to excavate and stockpilecontaminatedsoils.The tank pit was backfilled immediately following completion of
assessment activities.
Following the physical removal of the tanks,the vessels were inspected for structural
integrity.The three tanks appeared to be in good shape,exhibiting only minor pitting
with no discernible holes.
Page -1
TABLE 1:SUMMARY OFFIELD &SOIL ANALYTICAL RESULTSNEEDHAM'S SERVICE STATION,PILOT MOUNTAIN,N.C.
LOCATION SAMPLENn.:o.AlE DE1!I1ItED HNlll~ID JPPM)TPH (5030)TPH_f3550}
Pit Bottom A 10/22/91 9 300 68
Pit Bottom B 10/22/91 9 280
Pit Bottom C 10/22/91 9 25 <10
South Wall D 10122/91 4 200
South Wall E 10/22/91 4 35
West Wall F 10/22/91 4 260
Pit Bottom G 10/22/91 9 240
Pit Bottom H 10/22/91 9 40 <10
Pit Bottom I 10/22/91 9 140
East Wall J 10/22/91 4 260
West Wall K 10/22/91 4 90
Pit Bottom L 10/22/91 9 150 350
Pit Bottom M 10/22/91 9 50
Pit Bottom N 10/22/91 9 25 <10
East Wall 0 10/22/91 4 20
North Wall P 10/22/91 4 50
North Bottom Q 7/6/91 9 200
is 'J..J'-'
J II~1i.fJ
LEGEND
SCALE --I
0'15'30'
8 SAMPLE LOCATION
P Q88
~r~til~l!ii~liI1j~ti~i~·~il;ta'1 ~t-IGlCAl ~2,j~))3/~z~~111;~;j;~~;'J;t1:;:;~:;;W~]:~;~1;[[;{:!¥'jlijf"1l
ro
WG.;!L91-143
EXCAVATED PIT
<3 x 4K GAS USTS)
----------------
PROJECT,CLIENT,:;ALE,AS NOTE:D ITITLE,LEGACY
ENVIRONMENT ALSERVICES,INC,
GRE:E:NSBlJRIJ.NIJRTfI CAROLINA
UST CLOSURE
NEEDHAM'S SERVICE STATION
PILOT MOUNTAIN,N.C.
SITE LAYOUT SOUTHSIDE OIL COMPANY
HALIFAX,VIRGINIA
------------------\01--0 tllc::::;,~WAY r;7Z-\
eMW-1
.MW-2 (8-4)
Ne:.e:.OHAM·~~c:.sz.v'ICe:.
61'"A-rION 8-1 ••].:-rAN":"'?
•B-2
.arA~
PIJMP~IODDI
WELL AND .BORING
-'..-.:.-..........,....LOC.ATION DIAGRAM
------------------\OL-O ..J1c::,~WAYr;7Z-\
eMW-1
.:::::;rA~
PlJMP~10 CI 01
;7<:A\..-e::::I"=4-.0'FlGURE 3
Appendix IV – Photo Log
Groundwater Monitoring Report
Needham Service Station, Incident #3510, UST No. WS-2467
719 Main Street
Pilot Mountain, North Carolina
S&ME Project No. 4305-17-229
January 11, 2018 i Date: 1/5/2010Photographer: G. SimcoxLocation / Orientation East of building, across Bypass 52, facing west.
Remarks On-site building and paved parking lot. Date: 1/5/2010Photographer: G. SimcoxLocation / Orientation From on-site parking lot facing northeast.
Remarks Bypass 52 with Hurst Garage in the background.
Groundwater Monitoring Report
Needham Service Station, Incident #3510, UST No. WS-2467
719 Main Street
Pilot Mountain, North Carolina
S&ME Project No. 4305-17-229
January 11, 2018 ii Date: 1/5/2010Photographer: G. SimcoxLocation / Orientation From Bypass 52 curb, east of building, facing southwest.
Remarks Monitor well MW-6R; MW-2 in left background. Date: 1/5/2010Photographer: G. SimcoxLocation / Orientation From east of building facing west.
Remarks Monitor well MW-13; MW-14 in left background.
Appendix V – Field Notes and Field Sampling Forms
Hours Mileage Signature of S&ME Personnel
12.5 300
S&ME, Inc. | www.smeinc.com
Environmental Field Report
Date:
11-13-17
Job Number:
4305-17-229
Project Name:
Needham Service Station
Weather/Temperature:
Overcast, 45 °F
Project Location:
719 E. Main St. Pilot Mountain, Surry County, North Carolina
Notes By:
☒
Present at the Site:
Matthew Brundage
☐
-0645 MB arrived at CVS in Winston Salem to meet Lyndal Butler to pick up sample kit.
-0730 MB arrived at subject site for gauging and GWS.
-
-Locate and gauge all wells on site and plot coordinates with GPS unit. (MW-14, 3, 12, 2, 6R, 1R5,
7,8,10.
-Could not get signal to obtain coordinates for MW-8, 9, 11. Due to tree cover.
-Gauge Product in MW-13. (See attached).
-
-Sample MW-9, 6R, 7, 12, and 14 for 6200B. Include (1) field blank with samples. (See attached
sample form)
-Photo document location of area around MW-12-14 and MW-2 / 6R.
-
-Investigate discrepancies with MW-12 and MW-14. Conclude well tags are correct and map has
MW-12 and MW-14 reversed.
-
Attachments:
Field Sampling Forms.
Field gauging form.
Photos.
Equipment Used
Electronic Water level Meter
Electronic Interface Meter
Disposable Bailers/Rope (5)
GPR unit
Date
(1)
Revision:
FREE PRODUCT AND WATER LEVEL GAUGING FORM
45
Date:
Air Temp. (°F):
STF-3510 Needham Sevice Station
719 East Main St. Pilot Mountain, N.C.
4305-17-229
Overcast
Project Number:November 13, 2017
Project Name:
Project Location:
Weather:
Screen
Length
(feet)
14.0
15.5
15.0
10.0
10.0
MW-3 DTW above TOC. Photo document. MW-1R was blocked.
All measurements were collected from the Top of Casing (TOC)
NP = Not Present
Notes:
Free Product
Below Top of
Well Screen?
(Yes/No)
Yes
NP
-
NP
NP
NP
TOC 49.2
0.00
MW-8 11:35 Stick Up NP 43.12 45.5 35.5 0.00
10.0
Name
11/13/2017
Signature
33.7
MW-2 09:00 Flush Mount NP 39.87 52.3 42.3
MW-5 11:15 Flush Mount
Time
MW-13 08:20 31.5 0.89
NP Not recorded 49.7 39.7 0.00
MW-1R Flush Mount Blocked
by vehicle 49.3 34.3 -
MW-3 08:45 Flush Mount NP
9/1/17 12:50 PM
0.00
Water Level & Well Data
Depth to
Free
Product
(ft-TOC)
Depth to
Water
(ft-TOC)
Well ID
Top of
Screen
Depth
(ft-TOC)
Free
Product
Thickness
(feet)
Flush Mount
/ Stick Up
Flush Mount 40.18 41.07 45.5
Matthew Brundage
Total Well
Depth
(ft-TOC)
° F
Date Time
11/13/17 07:30 4.0 10.0
11/13/17 07:30 µS/cm
40.87 ft-TOC inch
50.00 ft-TOC gal
9.13 feet gal
15 ft-GRD gal
ft-GRD
10:05 End Time:
gal
Time pH Temp Cond Turbidity
(s.u.)(°C) µS/cm (NTU)
10:05 5.4 17.1 185 clear
10:12 5.4 18.1 182 turbid
10:17 5.5 18.3 198 turbid
10:20 5.4 18.5 212 turbid
10:25
Qty Container Pres.Qty Pres.
3 40mL VOAs HCl
(1)
Notes:
Mattew Brundage 1/11/2018
Name Signature Date
Analytical Data
Method Method Container
VOCs 6200
Sample Method:Bailer Sample Time:
4.5 Petroleum Odors
(Gal)
0.0
1.5
3.0
Total Volume Purged:4.5 Well Purged Dry?:No
Field Parameters
Cumulative Volume Comments
Screen Length:5 * Well Volume 7.4
Stickup Height:
Well Purging Information
Purge Method:Bailer Purge Start Time:10:22
Total Well Depth:Well Volume 1.5
Height of Water Column:3 * Well Volume 4.5
Water Level & Well Data
Measuring Point:Top of Casing Well Volume
Depth to Water:Well Diameter 2
pH 4.00, 7.00, 10.00 7.0
Conductivity 1,413 1,413 µS/cm
Weather:Overcast Air Temp:47
Equipment Calibration Information:
Equipment Calibration Solution Calibration Check
Locked?:Yes Sample Date: November 13, 2017
Sampled By:M Brundage Sample Time:10:25
Project Number:4305-17-229 Purge Date: November 13, 2017
Source Well:MW-6R Purge Time (Min.):17
GROUNDWATER SAMPLING FORM
Project Name:STF-3510 Needham Service Station
Project Location:719 East Main St, Pilot Mountain , N.C.
° F
Date Time
11/13/17 07:30 4.0 10.0
11/13/17 07:30 µS/cm
41.92 ft-TOC inch
54.50 ft-TOC gal
12.58 feet gal
ft-GRD gal
ft-GRD
11:45 End Time:
gal
Time pH Temp Cond Turbidity
(s.u.)(°C) µS/cm (NTU)
11:45 6.1 16.6 325 clear
11:50 6.0 16.9 357 turbid
11:54 5.7 17.1 377 turbid
12:00 5.7 17.7 397 turbid
12:00
Qty Container Pres.Qty Pres.
3 40mL VOAs HCl
(1)
Notes:
Form Revision Date:
Mattew Brundage 1/11/2018
9/13/17 8:00 AM
Name Signature Date
Analytical Data
Method Method Container
VOCs 6200
Sample Method:Bailer Sample Time:
6.0
(Gal)
0.0
2.0
4.0
Total Volume Purged:6.0 Well Purged Dry?:No
Field Parameters
Cumulative Volume Comments
Screen Length:5 * Well Volume 10.3
Stickup Height:
Well Purging Information
Purge Method:Bailer Purge Start Time:12:00
Total Well Depth:Well Volume 2.1
Height of Water Column:3 * Well Volume 6.2
Water Level & Well Data
Measuring Point:Top of Casing Well Volume
Depth to Water:Well Diameter 2
pH 4.00, 7.00, 10.00 7.0
Conductivity 1,413 1,413 µS/cm
Weather:Overcast Air Temp:50
Equipment Calibration Information:
Equipment Calibration Solution Calibration Check
Locked?:No Sample Date: November 3, 2017
Sampled By:M Brundage Sample Time:12:00
Project Number:4305-17-229 Purge Date: November 3, 2017
Source Well:MW-7 Purge Time (Min.):15
GROUNDWATER SAMPLING FORM
Project Name:STF-3510 Needham Service Station
Project Location:719 East Main St, Pilot Mountain , N.C.
° F
Date Time
11/13/17 07:30 4.0 10.0
11/13/17 07:30 µS/cm
27.44 ft-TOC inch
37.50 ft-TOC gal
10.06 feet gal
ft-GRD gal
ft-GRD
12:20 End Time:
gal
Time pH Temp Cond Turbidity
(s.u.)(°C) µS/cm (NTU)
12:20 6.7 17 334 Clear
12:25 6.7 17.7 297 turbid
12:30 6.7 18.7 277 turbid
12:35 6.8 19 264 turbid
12:35
Qty Container Pres.Qty Pres.
3 40mL VOAs HCl
(1)
Notes:
Form Revision Date:
Mattew Brundage 1/11/2018
9/13/17 8:00 AM
Name Signature Date
Analytical Data
Method Method Container
VOCs 6200
Sample Method:Bailer Sample Time:
4.5
(Gal)
0.0
1.5
3.0
Total Volume Purged:4.5 Well Purged Dry?:No
Field Parameters
Cumulative Volume Comments
Screen Length:5 * Well Volume 8.2
Stickup Height:
Well Purging Information
Purge Method:Bailer Purge Start Time:12:35
Total Well Depth:Well Volume 1.6
Height of Water Column:3 * Well Volume 4.9
Water Level & Well Data
Measuring Point:Top of Casing Well Volume
Depth to Water:Well Diameter 2
pH 4.00, 7.00, 10.00 7.0
Conductivity 1,413 1,413 µS/cm
Weather:Overcast Air Temp:50
Equipment Calibration Information:
Equipment Calibration Solution Calibration Check
Locked?:Yes Sample Date: November 13, 2017
Sampled By:M Brundage Sample Time:12:35
Project Number:4305-17-229 Purge Date: November 13, 2017
Source Well:MW-9 Purge Time (Min.):15
GROUNDWATER SAMPLING FORM
Project Name:STF-3510 Needham Service Station
Project Location:719 East Main St, Pilot Mountain , N.C.
° F
Date Time
11/13/17 07:30 4.0 10.0
11/13/17 07:30 µS/cm
37.05 ft-TOC inch
43.30 ft-TOC gal
6.25 feet gal
15 ft-GRD gal
ft-GRD
09:30 End Time:
gal
Time pH Temp Cond Turbidity
(s.u.)(°C) µS/cm (NTU)
09:30 6.6 17.2 172 Turbid
09:35 5.6 18 166 Turbid
09:40 5.6 18.1 152 Turbid
09:45 5.6 17.9 147 Turbid
09:50
Qty Container Pres.Qty Pres.
3 40mL VOAs HCl
(1)
Notes:
Form Revision Date:
Mattew Brundage 1/11/2018
9/13/17 8:00 AM
Name Signature Date
Analytical Data
Method Method Container
VOCs 6200
Sample Method:Bailer Sample Time:
3.0
(Gal)
0.0
1.0
2.0
Total Volume Purged:3.0 Well Purged Dry?:No
Field Parameters
Cumulative Volume Comments
Screen Length:5 * Well Volume 5.1
Stickup Height:
Well Purging Information
Purge Method:Bailer Purge Start Time:09:45
Total Well Depth:Well Volume 1.0
Height of Water Column:3 * Well Volume 3.1
Water Level & Well Data
Measuring Point:Top of Casing Well Volume
Depth to Water:Well Diameter 2
pH 4.00, 7.00, 10.00 7.0
Conductivity 1,413 1,413 µS/cm
Weather:Overcast Air Temp:47
Equipment Calibration Information:
Equipment Calibration Solution Calibration Check
Locked?:Yes Sample Date: November 13, 2017
Sampled By:M Brundage Sample Time:09:50
Project Number:4305-17-229 Purge Date: November 13, 2017
Source Well:MW-12 Purge Time (Min.):15
GROUNDWATER SAMPLING FORM
Project Name:STF-3510 Needham Service Station
Project Location:719 East Main St, Pilot Mountain , N.C.
° F
Date Time
11/13/17 07:30 4.0 10.0
11/13/17 07:30 µS/cm
39.52 ft-TOC inch
46.00 ft-TOC gal
6.48 feet gal
ft-GRD gal
ft-GRD
10:40 End Time:
gal
Time pH Temp Cond Turbidity
(s.u.)(°C) µS/cm (NTU)
10:40 5.8 17.6 369 clear
10:44 5.8 17.9 333 turbid
10:50 5.8 18.4 314 turbid
10:53 5.8 18.2 307 turbid
10:55
Qty Container Pres.Qty Pres.
3 40mL VOAs HCl
(1)
Notes:
Form Revision Date:
Mattew Brundage 1/11/2018
9/13/17 8:00 AM
Name Signature Date
Analytical Data
Method Method Container
VOCs 6200
Sample Method:Bailer Sample Time:
3.0
(Gal)
0.0 Petroleum Odors
1.0
2.0
Total Volume Purged:3.0 Well Purged Dry?:No
Field Parameters
Cumulative Volume Comments
Screen Length:5 * Well Volume 5.3
Stickup Height:
Well Purging Information
Purge Method:Bailer Purge Start Time:10:53
Total Well Depth:Well Volume 1.1
Height of Water Column:3 * Well Volume 3.2
Water Level & Well Data
Measuring Point:Top of Casing Well Volume
Depth to Water:Well Diameter 2
pH 4.00, 7.00, 10.00 7.0
Conductivity 1,413 1,413 µS/cm
Weather:Air Temp:47
Equipment Calibration Information:
Equipment Calibration Solution Calibration Check
Locked?:Sample Date: November 13, 2017
Sampled By:M Brundage Sample Time:10:55
Project Number:4305-17-229 Purge Date: November 13, 2017
Source Well:MW-14 Purge Time (Min.):13
GROUNDWATER SAMPLING FORM
Project Name:STF-3510 Needham Service Station
Project Location:719 East Main St, Pilot Mountain , N.C.
Appendix VI – Laboratory Analytical Report and Chain of Custody
Form
Page 1 of 35
Table of Contents
Table of Contents
Sample Summary 3
Hits Only Report 4
Case Narrative 7
Sample Results 9
17K0934-01 9
17K0934-02 11
17K0934-03 13
17K0934-04 15
17K0934-05 17
17K0934-06 19
Sample Preparation Information 21
QC Data 22
Volatile Organic Compounds by GC/MS 22
B191654 22
B191728 26
Flag/Qualifier Summary 30
Certifications 31
Chain of Custody/Sample Receipt 33
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Appendix VII- NC Department of Transportation Right of Way
Information