WS-7675_37035_CA_SCH_20181003

Letter Report
Former Village Mart ■Winston-Salem,NC ■Incident No. 37035
October 3, 2018 ■Terracon Project No.75179046
Responsive ■ Resourceful ■ Reliable
Site Information
Date of Report:October 3,2018
Facility ID:0-015787
Site Name:Former Village Mart
Site Location:2260 Old Salisbury Road
Winston-Salem, North Carolina
Latitude:36.0264482
Longitude:-80.2754720
UST Owner/Operator:Mr. William Eddinger, deceased
Current Property Owner:Richard Michael Eddinger
2260 Old Salisbury Road
Winston-Salem, North Carolina 27127
Consultant:Terracon Consultants, Inc. (Contact: Mark I. Miller)
7327-G W.Friendly Avenue
Greensboro, North Carolina 27410
Site Setting
The approximately 0.48-acre site is located in a residential and commercial area and is currently
occupied by a motorcycle repair shop in Winston-Salem, Forsyth County, North Carolina (Exhibit
1).The motorcycle repair shop formerly operated two 2,000-gallon gasoline underground storage
tanks (USTs), one 550-gallon kerosene UST, one 550-gallon used motor oil UST, and one 270-
gallon kerosene UST from the 1950s until July 2007.The former USTs and dispenser islands
appear to have been located on the northwest portion of the site, along Old Salisbury Road.
Release Summary
On July 25, 2007,GeoScience Technology, P.A. supervised the removal of the five former USTs
at the site.Closure soil samples collected from beneath the base of the former 270-gallon
kerosene UST (UST-3), former 550-gallon kerosene UST (UST-4), and dispenser island DP-1
contained total petroleum hydrocarbons -diesel range organics (TPH-DRO) and TPH-gasoline
range organics (TPH-GRO) at concentrations exceeding their respective NCDEQ Guideline
Action Levels in effect at that time of 10 milligrams per kilogram (mg/kg).Subsequently,Agra
Environmental, Inc. (Agra) installed two groundwater monitoring wells (MW-1 and MW-2)to
depths of 38 feet below ground surface (bgs) and 40 feet bgs, respectively. Monitoring well MW-
1 was advanced through the tank pit of former UST-3 and well MW-2 was advanced through the
tank pit of former UST-4 and near DP-1. Two soil samples were collected at depths of 10 feet bgs
Letter Report
Former Village Mart ■Winston-Salem,NC ■Incident No. 37035
October 3, 2018 ■Terracon Project No.75179046
Responsive ■ Resourceful ■ Reliable
and 20 feet bgs from each monitoring well boring.The soil samples were analyzed for volatile
organic compounds (VOCs) by USEPA Method 8260 including isopropyl ether (IPE) and methyl
tert-butyl ether (MTBE),and semi-volatile organic compounds (SVOCs) by USEPA Method 8270.
Additionally, the soil samples collected from 10 feet bgs from each boring were analyzed for
volatile petroleum hydrocarbons (VPH) and extractable petroleum hydrocarbons (EPH) by the
MADEP Methods.Analytical results indicated the presence of several petroleum constituents at
concentrations exceeding their respective laboratory reporting limits but below their respective
NCDEQ Soil-to-Groundwater Maximum Soil Contaminant Concentrations (MSCCs)in soil
samples collected from both borings. Soil samples collected from the well MW-1 boring at a depth
of 10 feet bgs contained C9-C22 aromatics at a concentration exceeding its Soil-to-Groundwater
MSCC but below its NCDEQ Residential Cleanup Standard.
Previous Investigations
Agra collected groundwater samples from monitoring wells MW-1 and MW-2 on July 17, 2009
and analyzed them for VOCs by USEPA Method 8260, SVOCs by USEPA Method 8270, VPH
and EPH by the MADEP Method, and lead by USEPA Method 3030C. Groundwater analytical
results identified the presence of several petroleum constituents at concentrations exceeding their
respective laboratory reporting limits but below their respective 15A NCAC 2L Groundwater
Quality Standards (2L Standards).The groundwater samples from monitoring well MW-2
contained bromodichloromethane and C9-C22 aromatics at concentrations exceeding their
respective 2L Standards but below their respective NCDEQ Gross Contamination Limits (GCLs).
Lead was detected in groundwater samples from monitoring wells MW-1 and MW-2 at
concentrations exceeding its 2L Standard but below its GCL.
A second groundwater sampling event was conducted by Agra in November 2009. Groundwater
samples collected from monitoring well MW-1 were analyzed for lead by USEPA Method 3030C
and samples from well MW-2 were analyzed for VOCs by USEPA Method 6200B, SVOCs by
USEPA Method 625, VPH and EPH by the MADEP Methods, and lead by USEPA Method 3030C.
Analytical results identified the presence of C11-C22 aromatics and tetrachloroethylene (PCE) at
concentrations exceeding their respective 2L Standards but below their respective GCLs in
groundwater samples from well MW-2.
Agra collected additional groundwater samples from well MW-2 on July 6, 2010 and analyzed
them for VOCs by USEPA Method 6200B, SVOCs by USEPA Method 610, and VPH and EPH
by the MADEP Methods. Monitoring well MW-1 was not sampled. Analytical results identified the
presence of PCE and methyl tert-butyl ether (MTBE) at concentrations exceeding their laboratory
reporting limits but below their respective 2L Standards.
Crawford Environmental Services (Crawford) mobilized to the site on June 7, 2012 to sample
monitoring wells MW-1 and MW-2 and off-site water supply well WSW-1612 for VOCs by USEPA
Method 6200B. Analytical results identified the presence of several petroleum constituents at
concentrations exceeding their respective laboratory reporting limits but below their respective 2L
Standards in groundwater samples from monitoring wells MW-1 and MW-2. PCE was detected in
Letter Report
Former Village Mart ■Winston-Salem,NC ■Incident No. 37035
October 3, 2018 ■Terracon Project No.75179046
Responsive ■ Resourceful ■ Reliable
groundwater samples from monitoring well MW-1 at concentrations exceeding its 2L Standard but
below its GCL. Analytical results from monitoring well MW-2 indicated the presence of benzene
and PCE at concentrations exceeding their respective 2L Standards but below their respective
GCLs. Groundwater samples collected from water supply well WSW-1612 did not contain
petroleum constituents at concentrations exceeding their respective laboratory reporting limits.
Crawford mobilized to the site on December 27, 2012 to sample monitoring wells MW-1 and MW-
2 and off-site water supply well WSW-1612 for VOCs by USEPA Method 6200B. Analytical results
identified the presence of several petroleum constituents at concentrations exceeding their
respective laboratory reporting limits but below their respective 2L Standards in monitoring wells
MW-1 and MW-2.PCE was detected in groundwater samples from monitoring well MW-1 at
concentrations exceeding its 2L standard but below its GCL. Analytical results from monitoring
well MW-2 indicated the presence of benzene and PCE at concentrations exceeding their
respective 2L Standards but below their respective GCLs. Groundwater samples collected from
water supply well WSW-1612 did not contain petroleum constituents at concentrations exceeding
their respective laboratory reporting limits.
Site Reconnaissance
Terracon mobilized to the site on April 20, 2018 to locate and gauge the monitoring wells and take
site photographs.Monitoring well locations are shown in Exhibit 2.Liquid non-aqueous phase
liquid (LNAPL or free product)was not detected in the on-site monitoring wells.The depth to water
was measured at 28.33 feet below top-of-casing (btoc)in monitoring well MW-1 and 26.20 feet
btoc in well MW-2.A filling station housing several petroleum USTs was observed approximately
85 feet northwest and topographically up to cross-gradient to the site, across Old Salisbury Road.
Groundwater monitoring wells were not observed on the adjacent site.The potential exists that a
release from the adjacent filling station’s UST system could impact the site.
Water Supply Wells
In an effort to update previously collected receptor survey information, Terracon completed a
walking/driving reconnaissance in the site vicinity on April 20, 2018. Based on our review of the
prior receptor survey and information obtained from the site vicinity reconnaissance and the
Forsyth County GIS website,six water supply wells were identified within 500 feet of the site, and
four wells were identified between 500 and 1,000 feet of the site.Water supply wells were not
identified beyond 1,000 feet of the site.Water supply well information is included in Table 1, and
a map showing water supply well locations is included as Exhibit 3.
Public Water Supplies
Based on information obtained from the City of Winston-Salem Water and Sewer Department,
the public water sources for Forsyth County are Salem Lake,the Reddies River and the Yadkin
River, all of which are located upgradient to the site.According to the Winston-Salem Water and
Sewer Department, municipal water is available to the site and surrounding properties.
Letter Report
Former Village Mart ■Winston-Salem,NC ■Incident No. 37035
October 3, 2018 ■Terracon Project No.75179046
Responsive ■ Resourceful ■ Reliable
Surface Water
Based on our review of the USGS Topographic Map,the site is located in the drainage basin for
Sides Branch which, at its closest point, is located approximately 730 feet east of the site.Nearby
surface water bodies are shown on Exhibit 1.
Sensitive Receptors
First Alliance Church, Advent Moravian Church and Heritage Hill Baptist Church are located
approximately 750 feet north,800 feet northeast and approximately 1,200 feet northwest of the
source area of the release, respectively. All three churches are located topographically upgradient
to the site. Other sensitive receptors were not identified within 1,500 feet of the source area of the
release.
Groundwater Sampling Activities
Terracon mobilized to the site on April 20, 2018 to sample on-site monitoring wells MW-1 and
MW-2. The approximate locations of the monitoring wells are shown on Exhibit 2. Prior to
sampling, depth to groundwater measurements were collected from wells MW-1 and MW-2 using
a decontaminated electronic water level meter.The depth to water was measured at 28.33 feet
btoc in monitoring well MW-1 and 26.20 feet btoc in well MW-2.
Prior to sampling, the wells were purged a minimum of three well volumes. Purge water from the
monitoring wells was disposed on-site in accordance with NCDEQ guidelines. The wells were
allowed to recharge a minimum of 90 percent of the original well volume before samples were
collected.The groundwater samples were hand-bailed with disposable plastic bailers, placed in
laboratory-supplied glassware, labeled and packed on ice in an insulated container. The samples,
along with chain-of-custody documentation, were transported via courier to Prism Laboratories in
Charlotte, North Carolina for analysis of VOCs by USEPA Method 6200B.
Analytical Results
LNAPL was not detected in the monitoring wells.The groundwater sample from well MW-1
contained several petroleum constituents at concentrations exceeding their respective laboratory
reporting limits but below their respective 2L Standards.The well MW-1 sample also contained
benzene (1,200 µg/L) and total xylenes (680 µg/L)at concentrations exceeding their respective
2L Standards but below their GCLs.The groundwater sample from well MW-2 contained benzene
(1,500 µg/L), ethylbenzene (740 µg/L), methyl isobutyl ketone (130 µg/L), n-propylbenzene (100
µg/L), 1,2,4-trimethylbenzene (440 µg/L), toluene (2,800 µg/L), and total xylenes (4,000 µg/L) at
concentrations exceeding their respective 2L Standards but below their GCLs.
Petroleum concentrations generally decreased over time from removal of the on-site USTs until
2012. Since the 2012 groundwater sampling event, petroleum constituents have risen sharply in
the on-site monitoring wells. Based on historical groundwater data, the potential exists that a
release from the adjacent filling station’s UST system could be impacting the site.Current and
Letter Report
Former Village Mart ■Winston-Salem,NC ■Incident No. 37035
October 3, 2018 ■Terracon Project No.75179046
Responsive ■ Resourceful ■ Reliable
historical groundwater analytical results are summarized on Table 2,and the current results are
depicted on Exhibit 4. Field notes are presented in Appendix A,and a copy of the laboratory
analytical report is provided in Appendix B.
Conclusions and Recommendations
n Six water supply wells were identified within 500 feet of the site, and four wells were
identified beyond between 500 and 1,000 feet of the site.Water supply wells were not
identified beyond 1,000 feet of the site.
n Municipal water is available to the site and site vicinity.
n The closest surface water feature is Sides Branch which, at its closest point,is located
approximately 730 feet east of the site.
n The groundwater sample from monitoring well MW-1 contained benzene and total xylenes
at concentrations exceeding their respective 2L Standards.
n The groundwater sample from monitoring well MW-2 contained benzene,ethylbenzene,
methyl isobutyl ketone,n-propylbenzene,1,2,4-trimethylbenzene,toluene and total
xylenes at concentrations exceeding their respective 2L Standards.
n LNAPL was not detected in the monitoring wells, and petroleum constituents were not
detected at concentrations exceeding their respective GCLs.
n Based on historical groundwater data, the potential exists that a release from the adjacent
filling station’s UST system could be impacting the site.
Terracon recommends the following activities be completed at the site:
n Install two additional groundwater monitoring well to establish groundwater flow direction
and further investigate the possibility of a petroleum release from the adjacent filling
station affecting the site.
n Attempt to sample nearby water supply wells WSW-1,WSW-2, WSW-3, WSW-4, WSW-
5, and WSW-10 for VOCs.
Exhibits
TOPOGRAPHIC MAP
TOPOGRAPHIC MAP IMAGE COURTESY OF THE U.S. GEOLOGICAL SURVEY
QUADRANGLES INCLUDE:WINSTON-SALEM WEST, NC (1/1/1997) and WINSTON-SALEM EAST, NC (1/1/1997).
7327W Friendly Ave, Ste G
Greensboro, NC 27410-6253
75179046
Former Village Mart
Incident No. 37035 Contract No. N17003
Winston-Salem, NC
Project Manager:
Drawn by:
Checked by:
Approved by:
ZRT
RMS
RMS
As Shown
Village Mart
June 2018
Project No.
Scale:
File Name:
Date:1
ExhibitMIM
APPROXIMATE
SITE BOUNDARY
2
Exhibit
7327-G West Friendly Ave.
Greensboro, NC 27410
Site PlanProject Manager:
Drawn by:
Checked by:
Approved by:
MIM Project No.
File Name:
Date:
Scale:ZRT
June2018RMS
RMS
As shown
Village Mart
Former Village Mart
Incident No. 37035 Contract No. N17003
Winston-Salem, NC
Denotes approximate site
boundary
Denotes approximate
monitoring well location
75179046
Denotes approximate
former UST location
DIAGRAM IS FOR GENERAL LOCATION
ONLY, AND IS NOT INTENDED FOR
CONSTRUCTION PURPOSES
0 25 50
GravelGrass
Wooded
Car
Wash
Single-
Family
Residence
Filling
Station
Canopy
UST Pit
Grass
Asphalt
MW-1
MW-2
T-1
T-2
T-3
T-5
T-4
Asphalt
Grass
DME
Racing
Grass
Feet
Denotes proposed
monitoring well location
MW-3
MW-4
3
Exhibit
DIAGRAM IS FOR GENERAL LOCATION
ONLY, AND IS NOT INTENDED FOR
CONSTRUCTION PURPOSES 7327-G West Friendly Ave.
Greensboro, NC 27410
WATER SUPPLY WELLSProject Manager:
Drawn by:
Checked by:
Approved by:
MIM Project No.
File Name:
Date:
Scale:ZRT
May 2018RMS
RMS
As shown
Village Mart
Former Village Mart
Incident No. 37035 No. N17003
Winston-Salem, NC
75179046
500 Feet
1,000 Feet
1,500 Feet
0 250 500
Denotes approximate site
boundary
Denotes approximate
water-supply well location
1
2
3
4 5
6
78
9
10
4
Exhibit
7327-G West Friendly Ave.
Greensboro, NC 27410
Groundwater Analytical Results Map (4/20/2018)Project Manager:
Drawn by:
Checked by:
Approved by:
MIM Project No.
File Name:
Date:
Scale:ZRT
June 2018RMS
RMS
As shown
Village Mart
Former Village Mart
Incident No. 37035 Contract No. N17003
Winston-Salem, NC
Denotes approximate site
boundary
Denotes approximate
monitoring well location
75179046
Denotes approximate
former UST location
DIAGRAM IS FOR GENERAL LOCATION
ONLY, AND IS NOT INTENDED FOR
CONSTRUCTION PURPOSES
0 25 50
GravelGrass
Wooded
Car
Wash
Single-
Family
Residence
Filling
Station
Canopy
UST Pit
Grass
Asphalt
T-1
T-2
T-3
T-5
T-4
Asphalt
Grass
DME
Racing
Grass
MW-1
Benzene:1,200 µg/L
n-Butylbenzene: 11 µg/L
Ethylbenzene: 250 µg/L
Isopropylbenzene: 30 µg/L
Isopropyl ether: 44 µg/L
n-Propylbenzene: 45 µg/L
1,2,4-Trimethylbenzene: 150 µg/L
1,3,5-Trimethylbenzene: 84 µg/L
Toluene: 95 µg/L
Total Xylenes:680 µg/L
MW-2
Acetone: 320 µg/L
Benzene:1,500 µg/L
n-Butylbenzene: 16 µg/L
sec-Butylbenzene: 5.2 µg/L
Ethylbenzene:740 µg/L
Isopropylbenzene: 42 µg/L
Isopropyl ether: 24 µg/L
Methyl Butyl Ketone: 140 µg/L
Methyl Ethyl Ketone: 470 µg/L
Methyl Isobutyl Ketone:130 µg/L
n-Propylbenzene:100 µg/L
1,2,4-Trimethylbenzene:440 µg/L
1,3,5-Trimethylbenzene: 190 µg/L
Toluene:2,800 µg/L
Total Xylenes:4,000 µg/L
µg/L = micrograms per liter
Concentrations in BOLD are in
excess of their 2L Standards
Feet

Tables

TABLE 1
Summary of Groundwater Sample
Analytical Results
Former Village Mart
Winston-Salem, North Carolina
Terracon Project No. 75179046
NCDEQ Incident No. 37035
Property
#
Tax Parcel
I.D.Owner Physical Address Mailing Address
Approx.
Distance from
Source Area
(feet)
Topographic
Up, Cross, or
Downgradient
Active Water
Account
Well
Identification
Method
1 6823-34-9621 Preston Stringer
Properties LLC
1621 Zeverly Street
Winston-Salem, NC
1765 Little Creek Circle
Winston-Salem, NC 27103 380 Downgradient Yes Visual
2 6823-34-9879 Nifong Family
Living Trust
2270 Old Salisbury Road
Winston-Salem, NC
108 NE 40th Street Oak
Island, NC 28465 320 Crossgradient Yes Visual
3 6823-34-9727 Bettie Swett 2288 Old Salisbury Road
Winston-Salem, NC
2288 Old Salisbury Road
Winston-Salem, NC 27127 320 Crossgradient Yes Visual
4 6823-34-9692 Barbara Ann Fritz
Parret
1615 Zeverly Street
Winston-Salem, NC
417 W. Radiance Drive
Greensboro, NC 27403 390 Crossgradient Yes Visual
5 6823-44-1612 Arthur Lee
Willard
1609 Zeverly Street
Winston-Salem, NC
1609 Zeverly Street
Winston-Salem, NC 27127 400 Crossgradient No Visual
6 6823-44-0461
Ana Keidy
Marroquin
Hesiquio
1608 Zeverly Street
Winston-Salem, NC
1608 Zeverly Street
Winston-Salem, NC 27127 600 Crossgradient No Visual
7 6823-34-9461 Ray T Lastrape 1620 Zeverly Street
Winston-Salem, NC
2425 West Loop S
Houston, TX 77027 575 Crossgradient Yes Visual
8 6823-34-8471 Mark B.
Earnhardt
1624 Zeverly Street
Winston-Salem, NC
9147 Goodwill Church Road
Kernersville, NC 27284 615 Crossgradient No Visual
9 6823-44-6779 Russell Triplett 2256 Sennett Drive
Winston-Salem, NC
222 Northwood Court
Lexington, NC 27295 680 Downgradient Yes Visual
10 6823-44-6947 Alisia Talley 2255 Sennett Drive
Winston-Salem, NC
2255 Sennett Drive
Winston-Salem, NC 27127 490 Downgradient Yes Visual
1 of 1
TABLE 2
Summary of Groundwater Sample
Analytical Results
Former Village Mart
Winston-Salem, North Carolina
Terracon Project No. 75179046
NCDEQ Incident No. 37035
Lead by
Method
6010
Well
I.D.
Date Collected
(mm/dd/yyyy)
7/11/2009 <2.0 ND ND ND <1.0 <1.0 ND <1.0 ND ND ND ND ND <2.0 ND <0.2 ND <1.0 0.77 ND <1.0 <1.0 <10 144 143 146 713
11/2/2009 NR ND ND ND NR NR ND NR ND ND ND ND ND NR ND NR ND NR NR ND NR NR NR NR NR NR 14.7
7/6/2010 NR ND ND ND NR NR ND NR ND ND ND ND ND NR ND NR ND NR NR ND NR NR NR NR NR NR NR
6/7/2012 ND ND ND ND ND ND ND ND ND ND ND ND ND 1 ND 1 ND ND ND ND NR NR NR NA NA NA ND
12/27/2012 ND 0.45 J ND ND ND ND ND ND ND 0.36 J ND ND ND 1.3 ND 0.48 J 0.31 J ND ND ND ND ND NA NA NA NA ND
4/20/2018 <50 1200 11 <5.0 <5.0 <5.0 250 <5.0 30 44 <50 <50 <50 <5.0 45 <5.0 150 84 95 680 NA NA NA NA NA NA NA
7/11/2009 15.5 ND ND ND 1.34 5.52 ND 0.68 ND ND ND ND ND 1.36 ND <0.2 ND 3.24 0.83 ND 6.5 3.0 <100 350 NA 81.2 81
11/2/2009 NR ND ND ND <0.5 <0.5 ND NS ND ND ND ND ND 0.96 ND 1.3 ND 0.53 <0.5 ND <10 <10 <8.4 425 364 <200 14.4
7/6/2010 <1.5 ND ND ND <0.031 <0.053 ND NA ND ND ND ND ND 1.4 ND 1.4 ND <0.038 <0.057 ND NA <0.81 NR <11 299 <20 ND
6/7/2012 ND 19.0 ND ND ND ND 6.7 ND ND 1.5 ND ND ND 1.6 2.2 1.9 10.0 6.00 13.0 74 NR NR NR NR <34 NR ND
12/27/2012 ND 100 ND ND ND ND 3.0 ND ND 4.6 ND ND ND 1.9 2.6 0.68 21.6 16 29.4 164.5 ND ND NA NA NA NA ND
4/20/2018 320 1500 16 5.2 <2.5 <2.5 740 <2.5 42 24 140 470 130 <2.5 100 <2.5 440 190 2800 4000 NA NA NA NA NA NA NA
6000 1.0 70 70 0.6 70 600 25 70 70 NE 4000 100 20 70 0.7 400 400 600 500 1 30 400 700 200 10000 15
6000000 5000 6900 8500 NE 70000 84500 11700 25000 70000 NE 4000000 100000 20000 30000 700 28500 25000 260000 85500 1000 12500 NE NE NE NE 15000
Notes:ND: Not Detected AboveLaboratory Reporting LimitsNR: Not Reported NE: Not Established
NA: Not Analyzed GCL: Gross Contamination Limit All concentrations reported in µg/L
Groundwater Standards pursuant to Title 15A NCAC 2L Groundwater Quality Standards (2L Standard)µg/L = micrograms per liter
VPH AND EPH concentrations calculated using the NCDEQ Table 10 Worksheet for Calculating MADEP BOLD indicates concentrations exceeding 2L Standards
Groundwater Sample Results to determine applicable standards indicates concentrations exceeding GCLs
Only historically detected compounds are included in the table.
Analytical Method
Contaminant of
Concern →Benzenen-Butylbenzene1,3,5-TrimethylbenzeneIsopropyl Ether VOCs by Method 6200 and 602
Methyl Tert-Butyl Ethern-Propylbenzene1,2,4-TrimethylbenzeneMethyl Ethyl KetoneMethyl Isobutyl KetoneTolueneXylenesTotal LeadC5 - C8 Aliphatics2-MethylnaphthaleneGCL (µg/L)EthylbenzeneIsopropylbenzeneMW-2 Methyl Butyl Ketone4-IsopropyltolueneAcetoneBromodichloromethaneMW-1
2L Standard (µg/L)sec-butylbenzeneChloroform1-MethylnaphthaleneSVOCs by
Method 625
and 610
TetrachloroethyleneVPH and EPH by MADEP
C19-C36 AliphaticsC9 - C18 AliphaticsC9 - C22 Aromatics1 of 1

Appendix A

Site Photographs

Former Willage MArt ■Winston-Salem,North Carolina
Photos Taken April 20, 2018 ■Terracon Project No.75179046
Responsive ■Resourceful ■Reliable
DME Racing,facing northeast.Former UST-3 location, facing northeast.
Note MW-1.
Former UST-4 location, facing southeast.Adjacent filling station, facing northwest.
Note MW-2.

Appendix B

Groundwater Analytical Data

This data package contains the analytical results for the project identified above and includes a Case Narrative, Sample
Results and Chain of Custody. Unless otherwise noted, all samples were received in acceptable condition and processed
according to the referenced methods.
Data qualifiers are flagged individually on each sample. A key reference for the data qualifiers appears at the end of this case
narrative.
NC Certification No. 402
NC Drinking Water Cert No. 37735
SC Certification No. 99012
Case Narrative
05/08/2018
Terracon Consultants - Greensboro
Zach Tidmore
7327 W. Friendly Drive
Greensboro, NC 27410
Project: Former Village Mart (Winston-Salem, NC)
Lab Submittal Date: 04/27/2018
Prism Work Order: 8040553
Please call if you have any questions relating to this analytical report.
Respectfully,
PRISM LABORATORIES, INC.
President/Project Manager
Reviewed ByRobbi A. Jones Robbi A. Jones
President/Project Manager
Data Qualifiers Key Reference:
Method Detection LimitMDL
Below Reporting LimitBRL
Relative Percent DifferenceRPD
*Results reported to the reporting limit. All other results are reported to the MDL with values between MDL and
reporting limit indicated with a J.
This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories, Inc.
449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543
Phone: [phone] - Toll Free Number: 1-800/529-6364 - Fax: [phone] Page 1 of 14
Sample Receipt Summary
05/08/2018
Prism Work Order: 8040553
Client Sample ID MatrixLab Sample ID Date Sampled Date Received
8040553-01 04/20/18MW-1 04/27/18Water
8040553-02 04/20/18MW-2 04/27/18Water
Samples were received in good condition at 2.4 degrees C unless otherwise noted.
This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories, Inc.
449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543
Phone: [phone] - Toll Free Number: 1-800/529-6364 - Fax: [phone] Page 2 of 14
Client ID ResultParameterMethod UnitsPrism ID
Prism Work Order: 8040553
05/08/2018
Summary of Detections
150 ug/L8040553-01 MW-1 1,2,4-Trimethylbenzene 8260B
84 ug/L8040553-01 MW-1 1,3,5-Trimethylbenzene 8260B
1200 ug/L8040553-01 MW-1 Benzene 8260B
250 ug/L8040553-01 MW-1 Ethylbenzene 8260B
44 ug/L8040553-01 MW-1 Isopropyl Ether 8260B
30 ug/L8040553-01 MW-1 Isopropylbenzene (Cumene)8260B
570 ug/L8040553-01 MW-1 m,p-Xylenes 8260B
11 ug/L8040553-01 MW-1 n-Butylbenzene 8260B
45 ug/L8040553-01 MW-1 n-Propylbenzene 8260B
110 ug/L8040553-01 MW-1 o-Xylene 8260B
95 ug/L8040553-01 MW-1 Toluene 8260B
680 ug/L8040553-01 MW-1 Xylenes, total 8260B
440 ug/L8040553-02 MW-2 1,2,4-Trimethylbenzene 8260B
190 ug/L8040553-02 MW-2 1,3,5-Trimethylbenzene 8260B
320 ug/L8040553-02 MW-2 Acetone 8260B
1500 ug/L8040553-02 MW-2 Benzene 8260B
740 ug/L8040553-02 MW-2 Ethylbenzene 8260B
24 ug/L8040553-02 MW-2 Isopropyl Ether 8260B
42 ug/L8040553-02 MW-2 Isopropylbenzene (Cumene)8260B
3100 ug/L8040553-02 MW-2 m,p-Xylenes 8260B
140 ug/L8040553-02 MW-2 Methyl Butyl Ketone (2-Hexanone)8260B
470 ug/L8040553-02 MW-2 Methyl Ethyl Ketone (2-Butanone)8260B
130 ug/L8040553-02 MW-2 Methyl Isobutyl Ketone 8260B
16 ug/L8040553-02 MW-2 n-Butylbenzene 8260B
100 ug/L8040553-02 MW-2 n-Propylbenzene 8260B
880 ug/L8040553-02 MW-2 o-Xylene 8260B
5.2 ug/L8040553-02 MW-2 sec-Butylbenzene 8260B
2800 ug/L8040553-02 MW-2 Toluene 8260B
4000 ug/L8040553-02 MW-2 Xylenes, total 8260B
This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories, Inc.
449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543
Phone: [phone] - Toll Free Number: 1-800/529-6364 - Fax: [phone] Page 3 of 14
Laboratory Report
05/08/2018
ResultParameter Batch
ID
Report
Limit
Analysis
Date/Time
MethodDilution
Factor
Units MDL Analyst
7327 W. Friendly Drive
Project: Former Village Mart
(Winston-Salem, NC)
Terracon Consultants - Greensboro
Greensboro, NC 27410
Attn: Zach Tidmore
Sample Matrix: Water
Client Sample ID: MW-1
Prism Sample ID: 8040553-01
Prism Work Order: 8040553
Time Collected: 04/20/18 15:00
Time Submitted: 04/27/18 16:50
Volatile Organic Compounds by GC/MS
BRL 8260B P8E0130105.0 5/4/18 14:59 KDMug/L 1.11,1,1,2-Tetrachloroethane
BRL 8260B P8E0130105.0 5/4/18 14:59 KDMug/L 0.611,1,1-Trichloroethane
BRL 8260B P8E0130105.0 5/4/18 14:59 KDMug/L 0.361,1,2,2-Tetrachloroethane
BRL 8260B P8E0130105.0 5/4/18 14:59 KDMug/L 0.661,1,2-Trichloroethane
BRL 8260B P8E0130105.0 5/4/18 14:59 KDMug/L 0.831,1-Dichloroethane
BRL 8260B P8E0130105.0 5/4/18 14:59 KDMug/L 0.831,1-Dichloroethylene
BRL 8260B P8E0130105.0 5/4/18 14:59 KDMug/L 0.511,1-Dichloropropylene
BRL 8260B P8E013010205/4/18 14:59 KDMug/L 4.01,2,3-Trichlorobenzene
BRL 8260B P8E013010105/4/18 14:59 KDMug/L 1.41,2,3-Trichloropropane
BRL 8260B P8E013010105/4/18 14:59 KDMug/L 1.31,2,4-Trichlorobenzene
150 8260B P8E0130105.0 5/4/18 14:59 KDMug/L 0.541,2,4-Trimethylbenzene
BRL 8260B P8E013010205/4/18 14:59 KDMug/L 1.71,2-Dibromo-3-chloropropane
BRL 8260B P8E0130105.0 5/4/18 14:59 KDMug/L 0.511,2-Dibromoethane
BRL 8260B P8E0130105.0 5/4/18 14:59 KDMug/L 0.761,2-Dichlorobenzene
BRL 8260B P8E0130105.0 5/4/18 14:59 KDMug/L 0.661,2-Dichloroethane
BRL 8260B P8E0130105.0 5/4/18 14:59 KDMug/L 1.11,2-Dichloropropane
84 8260B P8E0130105.0 5/4/18 14:59 KDMug/L 0.761,3,5-Trimethylbenzene
BRL 8260B P8E0130105.0 5/4/18 14:59 KDMug/L 0.541,3-Dichlorobenzene
BRL 8260B P8E0130105.0 5/4/18 14:59 KDMug/L 0.431,3-Dichloropropane
BRL 8260B P8E0130105.0 5/4/18 14:59 KDMug/L 0.501,4-Dichlorobenzene
BRL 8260B P8E013010205/4/18 14:59 KDMug/L 1.12,2-Dichloropropane
BRL 8260B P8E0130105.0 5/4/18 14:59 KDMug/L 0.662-Chlorotoluene
BRL 8260B P8E0130105.0 5/4/18 14:59 KDMug/L 0.504-Chlorotoluene
BRL 8260B P8E0130105.0 5/4/18 14:59 KDMug/L 0.894-Isopropyltoluene
BRL 8260B P8E013010505/4/18 14:59 KDMug/L 3.1Acetone
BRL 8260B P8E0130102005/4/18 14:59 KDMug/L 2.0Acrolein
BRL 8260B P8E0130102005/4/18 14:59 KDMug/L 2.0Acrylonitrile
1200 8260B P8E0130100505/4/18 15:33 KDMug/L 4.8Benzene
BRL 8260B P8E0130105.0 5/4/18 14:59 KDMug/L 0.57Bromobenzene
BRL 8260B P8E0130105.0 5/4/18 14:59 KDMug/L 1.4Bromochloromethane
BRL 8260B P8E0130105.0 5/4/18 14:59 KDMug/L 0.62Bromodichloromethane
BRL 8260B P8E013010105/4/18 14:59 KDMug/L 0.40Bromoform
BRL 8260B P8E013010105/4/18 14:59 KDMug/L 1.8Bromomethane
BRL 8260B P8E013010505/4/18 14:59 KDMug/L 0.75Carbon disulfide
BRL 8260B P8E0130105.0 5/4/18 14:59 KDMug/L 1.1Carbon Tetrachloride
BRL 8260B P8E0130105.0 5/4/18 14:59 KDMug/L 0.62Chlorobenzene
BRL 8260B P8E0130105.0 5/4/18 14:59 KDMug/L 2.2Chloroethane
BRL 8260B P8E0130105.0 5/4/18 14:59 KDMug/L 0.76Chloroform
BRL 8260B P8E0130105.0 5/4/18 14:59 KDMug/L 0.79Chloromethane
BRL 8260B P8E0130105.0 5/4/18 14:59 KDMug/L 0.56cis-1,2-Dichloroethylene
BRL 8260B P8E0130105.0 5/4/18 14:59 KDMug/L 0.79cis-1,3-Dichloropropylene
BRL 8260B P8E0130105.0 5/4/18 14:59 KDMug/L 0.81Dibromochloromethane
This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories, Inc.
449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543
Phone: [phone] - Toll Free Number: 1-800/529-6364 - Fax: [phone] Page 4 of 14
Laboratory Report
05/08/2018
ResultParameter Batch
ID
Report
Limit
Analysis
Date/Time
MethodDilution
Factor
Units MDL Analyst
7327 W. Friendly Drive
Project: Former Village Mart
(Winston-Salem, NC)
Terracon Consultants - Greensboro
Greensboro, NC 27410
Attn: Zach Tidmore
Sample Matrix: Water
Client Sample ID: MW-1
Prism Sample ID: 8040553-01
Prism Work Order: 8040553
Time Collected: 04/20/18 15:00
Time Submitted: 04/27/18 16:50
BRL 8260B P8E0130105.0 5/4/18 14:59 KDMug/L 0.65Dibromomethane
BRL 8260B P8E013010105/4/18 14:59 KDMug/L 1.1Dichlorodifluoromethane
250 8260B P8E0130105.0 5/4/18 14:59 KDMug/L 0.61Ethylbenzene
BRL 8260B P8E013010205/4/18 14:59 KDMug/L 1.6Hexachlorobutadiene
44 8260B P8E0130105.0 5/4/18 14:59 KDMug/L 0.50Isopropyl Ether
30 8260B P8E0130105.0 5/4/18 14:59 KDMug/L 0.54Isopropylbenzene (Cumene)
570 8260B P8E013010105/4/18 14:59 KDMug/L 1.2m,p-Xylenes
BRL 8260B P8E013010505/4/18 14:59 KDMug/L 0.65Methyl Butyl Ketone (2-Hexanone)
BRL 8260B P8E013010505/4/18 14:59 KDMug/L 2.4Methyl Ethyl Ketone (2-Butanone)
BRL 8260B P8E013010505/4/18 14:59 KDMug/L 0.78Methyl Isobutyl Ketone
BRL 8260B P8E013010105/4/18 14:59 KDMug/L 0.83Methylene Chloride
BRL 8260B P8E0130105.0 5/4/18 14:59 KDMug/L 0.42Methyl-tert-Butyl Ether
BRL 8260B P8E013010105/4/18 14:59 KDMug/L 1.9Naphthalene
11 8260B P8E013010105/4/18 14:59 KDMug/L 0.76n-Butylbenzene
45 8260B P8E0130105.0 5/4/18 14:59 KDMug/L 0.87n-Propylbenzene
110 8260B P8E0130105.0 5/4/18 14:59 KDMug/L 0.44o-Xylene
BRL 8260B P8E0130105.0 5/4/18 14:59 KDMug/L 0.76sec-Butylbenzene
BRL 8260B P8E0130105.0 5/4/18 14:59 KDMug/L 0.47Styrene
BRL 8260B P8E0130105.0 5/4/18 14:59 KDMug/L 0.88tert-Butylbenzene
BRL 8260B P8E0130105.0 5/4/18 14:59 KDMug/L 0.98Tetrachloroethylene
95 8260B P8E0130105.0 5/4/18 14:59 KDMug/L 0.44Toluene
BRL 8260B P8E0130105.0 5/4/18 14:59 KDMug/L 0.94trans-1,2-Dichloroethylene
BRL 8260B P8E0130105.0 5/4/18 14:59 KDMug/L 0.70trans-1,3-Dichloropropylene
BRL 8260B P8E0130105.0 5/4/18 14:59 KDMug/L 0.78Trichloroethylene
BRL 8260B P8E0130105.0 5/4/18 14:59 KDMug/L 0.62Trichlorofluoromethane
BRL 8260B P8E013010205/4/18 14:59 KDMug/L 0.60Vinyl acetate
BRL 8260B P8E0130105.0 5/4/18 14:59 KDMug/L 0.97Vinyl chloride
680 8260B P8E013010155/4/18 14:59 KDMug/L 1.5Xylenes, total
Surrogate Recovery Control Limits
80-124104 %4-Bromofluorobenzene
75-12996 %Dibromofluoromethane
77-12399 %Toluene-d8
This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories, Inc.
449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543
Phone: [phone] - Toll Free Number: 1-800/529-6364 - Fax: [phone] Page 5 of 14
Laboratory Report
05/08/2018
ResultParameter Batch
ID
Report
Limit
Analysis
Date/Time
MethodDilution
Factor
Units MDL Analyst
7327 W. Friendly Drive
Project: Former Village Mart
(Winston-Salem, NC)
Terracon Consultants - Greensboro
Greensboro, NC 27410
Attn: Zach Tidmore
Sample Matrix: Water
Client Sample ID: MW-2
Prism Sample ID: 8040553-02
Prism Work Order: 8040553
Time Collected: 04/20/18 15:30
Time Submitted: 04/27/18 16:50
Volatile Organic Compounds by GC/MS
BRL 8260B P8E013052.5 5/4/18 16:07 KDMug/L 0.561,1,1,2-Tetrachloroethane
BRL 8260B P8E013052.5 5/4/18 16:07 KDMug/L 0.311,1,1-Trichloroethane
BRL 8260B P8E013052.5 5/4/18 16:07 KDMug/L 0.181,1,2,2-Tetrachloroethane
BRL 8260B P8E013052.5 5/4/18 16:07 KDMug/L 0.331,1,2-Trichloroethane
BRL 8260B P8E013052.5 5/4/18 16:07 KDMug/L 0.421,1-Dichloroethane
BRL 8260B P8E013052.5 5/4/18 16:07 KDMug/L 0.411,1-Dichloroethylene
BRL 8260B P8E013052.5 5/4/18 16:07 KDMug/L 0.261,1-Dichloropropylene
BRL 8260B P8E01305105/4/18 16:07 KDMug/L 2.01,2,3-Trichlorobenzene
BRL 8260B P8E013055.0 5/4/18 16:07 KDMug/L 0.681,2,3-Trichloropropane
BRL 8260B P8E013055.0 5/4/18 16:07 KDMug/L 0.661,2,4-Trichlorobenzene
440 8260B P8E013052.5 5/4/18 16:07 KDMug/L 0.271,2,4-Trimethylbenzene
BRL 8260B P8E01305105/4/18 16:07 KDMug/L 0.841,2-Dibromo-3-chloropropane
BRL 8260B P8E013052.5 5/4/18 16:07 KDMug/L 0.251,2-Dibromoethane
BRL 8260B P8E013052.5 5/4/18 16:07 KDMug/L 0.381,2-Dichlorobenzene
BRL 8260B P8E013052.5 5/4/18 16:07 KDMug/L 0.331,2-Dichloroethane
BRL 8260B P8E013052.5 5/4/18 16:07 KDMug/L 0.551,2-Dichloropropane
190 8260B P8E013052.5 5/4/18 16:07 KDMug/L 0.381,3,5-Trimethylbenzene
BRL 8260B P8E013052.5 5/4/18 16:07 KDMug/L 0.271,3-Dichlorobenzene
BRL 8260B P8E013052.5 5/4/18 16:07 KDMug/L 0.221,3-Dichloropropane
BRL 8260B P8E013052.5 5/4/18 16:07 KDMug/L 0.251,4-Dichlorobenzene
BRL 8260B P8E01305105/4/18 16:07 KDMug/L 0.562,2-Dichloropropane
BRL 8260B P8E013052.5 5/4/18 16:07 KDMug/L 0.332-Chlorotoluene
BRL 8260B P8E013052.5 5/4/18 16:07 KDMug/L 0.254-Chlorotoluene
BRL 8260B P8E013052.5 5/4/18 16:07 KDMug/L 0.444-Isopropyltoluene
320 8260B P8E01305255/4/18 16:07 KDMug/L 1.6Acetone
BRL 8260B P8E013051005/4/18 16:07 KDMug/L 1.0Acrolein
BRL 8260B P8E013051005/4/18 16:07 KDMug/L 1.0Acrylonitrile
1500 8260B P8E0130100505/4/18 16:40 KDMug/L 4.8Benzene
BRL 8260B P8E013052.5 5/4/18 16:07 KDMug/L 0.28Bromobenzene
BRL 8260B P8E013052.5 5/4/18 16:07 KDMug/L 0.72Bromochloromethane
BRL 8260B P8E013052.5 5/4/18 16:07 KDMug/L 0.31Bromodichloromethane
BRL 8260B P8E013055.0 5/4/18 16:07 KDMug/L 0.20Bromoform
BRL 8260B P8E013055.0 5/4/18 16:07 KDMug/L 0.90Bromomethane
BRL 8260B P8E01305255/4/18 16:07 KDMug/L 0.37Carbon disulfide
BRL 8260B P8E013052.5 5/4/18 16:07 KDMug/L 0.54Carbon Tetrachloride
BRL 8260B P8E013052.5 5/4/18 16:07 KDMug/L 0.31Chlorobenzene
BRL 8260B P8E013052.5 5/4/18 16:07 KDMug/L 1.1Chloroethane
BRL 8260B P8E013052.5 5/4/18 16:07 KDMug/L 0.38Chloroform
BRL 8260B P8E013052.5 5/4/18 16:07 KDMug/L 0.39Chloromethane
BRL 8260B P8E013052.5 5/4/18 16:07 KDMug/L 0.28cis-1,2-Dichloroethylene
BRL 8260B P8E013052.5 5/4/18 16:07 KDMug/L 0.39cis-1,3-Dichloropropylene
BRL 8260B P8E013052.5 5/4/18 16:07 KDMug/L 0.40Dibromochloromethane
This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories, Inc.
449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543
Phone: [phone] - Toll Free Number: 1-800/529-6364 - Fax: [phone] Page 6 of 14
Laboratory Report
05/08/2018
ResultParameter Batch
ID
Report
Limit
Analysis
Date/Time
MethodDilution
Factor
Units MDL Analyst
7327 W. Friendly Drive
Project: Former Village Mart
(Winston-Salem, NC)
Terracon Consultants - Greensboro
Greensboro, NC 27410
Attn: Zach Tidmore
Sample Matrix: Water
Client Sample ID: MW-2
Prism Sample ID: 8040553-02
Prism Work Order: 8040553
Time Collected: 04/20/18 15:30
Time Submitted: 04/27/18 16:50
BRL 8260B P8E013052.5 5/4/18 16:07 KDMug/L 0.33Dibromomethane
BRL 8260B P8E013055.0 5/4/18 16:07 KDMug/L 0.57Dichlorodifluoromethane
740 8260B P8E0130100505/4/18 16:40 KDMug/L 6.1Ethylbenzene
BRL 8260B P8E01305105/4/18 16:07 KDMug/L 0.78Hexachlorobutadiene
24 8260B P8E013052.5 5/4/18 16:07 KDMug/L 0.25Isopropyl Ether
42 8260B P8E013052.5 5/4/18 16:07 KDMug/L 0.27Isopropylbenzene (Cumene)
3100 8260B P8E01301001005/4/18 16:40 KDMug/L 12m,p-Xylenes
140 8260B P8E01305255/4/18 16:07 KDMug/L 0.32Methyl Butyl Ketone (2-Hexanone)
470 8260B P8E01305255/4/18 16:07 KDMug/L 1.2Methyl Ethyl Ketone (2-Butanone)
130 8260B P8E01305255/4/18 16:07 KDMug/L 0.39Methyl Isobutyl Ketone
BRL 8260B P8E013055.0 5/4/18 16:07 KDMug/L 0.41Methylene Chloride
BRL 8260B P8E013052.5 5/4/18 16:07 KDMug/L 0.21Methyl-tert-Butyl Ether
BRL 8260B P8E013055.0 5/4/18 16:07 KDMug/L 0.96Naphthalene
16 8260B P8E013055.0 5/4/18 16:07 KDMug/L 0.38n-Butylbenzene
100 8260B P8E013052.5 5/4/18 16:07 KDMug/L 0.43n-Propylbenzene
880 8260B P8E0130100505/4/18 16:40 KDMug/L 4.4o-Xylene
5.2 8260B P8E013052.5 5/4/18 16:07 KDMug/L 0.38sec-Butylbenzene
BRL 8260B P8E013052.5 5/4/18 16:07 KDMug/L 0.24Styrene
BRL 8260B P8E013052.5 5/4/18 16:07 KDMug/L 0.44tert-Butylbenzene
BRL 8260B P8E013052.5 5/4/18 16:07 KDMug/L 0.49Tetrachloroethylene
2800 8260B P8E0130100505/4/18 16:40 KDMug/L 4.4Toluene
BRL 8260B P8E013052.5 5/4/18 16:07 KDMug/L 0.47trans-1,2-Dichloroethylene
BRL 8260B P8E013052.5 5/4/18 16:07 KDMug/L 0.35trans-1,3-Dichloropropylene
BRL 8260B P8E013052.5 5/4/18 16:07 KDMug/L 0.39Trichloroethylene
BRL 8260B P8E013052.5 5/4/18 16:07 KDMug/L 0.31Trichlorofluoromethane
BRL 8260B P8E01305105/4/18 16:07 KDMug/L 0.30Vinyl acetate
BRL 8260B P8E013052.5 5/4/18 16:07 KDMug/L 0.48Vinyl chloride
4000 8260B P8E01301001505/4/18 16:40 KDMug/L 15Xylenes, total
Surrogate Recovery Control Limits
80-124106 %4-Bromofluorobenzene
75-12999 %Dibromofluoromethane
77-12398 %Toluene-d8
This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories, Inc.
449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543
Phone: [phone] - Toll Free Number: 1-800/529-6364 - Fax: [phone] Page 7 of 14
5/8/18
Level II QC Report
7327 W. Friendly Drive
Project: Former Village Mart
(Winston-Salem, NC)
Terracon Consultants - Greensboro
Greensboro, NC 27410
Attn: Zach Tidmore
Prism Work Order: 8040553
Time Submitted: 4/27/2018 4:50:00PM
Result Limit
Reporting
Units Level
Spike
Result
Source
%REC
%REC
Limits RPD
RPD
Limit Notes Analyte
Volatile Organic Compounds by GC/MS - Quality Control
Batch P8E0130 - 5030B
Blank (P8E0130-BLK1)Prepared & Analyzed: 05/04/18
1,1,1,2-Tetrachloroethane ug/LBRL0.50
1,1,1-Trichloroethane ug/LBRL0.50
1,1,2,2-Tetrachloroethane ug/LBRL0.50
1,1,2-Trichloroethane ug/LBRL0.50
1,1-Dichloroethane ug/LBRL0.50
1,1-Dichloroethylene ug/LBRL0.50
1,1-Dichloropropylene ug/LBRL0.50
1,2,3-Trichlorobenzene ug/LBRL2.0
1,2,3-Trichloropropane ug/LBRL1.0
1,2,4-Trichlorobenzene ug/LBRL1.0
1,2,4-Trimethylbenzene ug/LBRL0.50
1,2-Dibromo-3-chloropropane ug/LBRL2.0
1,2-Dibromoethane ug/LBRL0.50
1,2-Dichlorobenzene ug/LBRL0.50
1,2-Dichloroethane ug/LBRL0.50
1,2-Dichloropropane ug/LBRL0.50
1,3,5-Trimethylbenzene ug/LBRL0.50
1,3-Dichlorobenzene ug/LBRL0.50
1,3-Dichloropropane ug/LBRL0.50
1,4-Dichlorobenzene ug/LBRL0.50
2,2-Dichloropropane ug/LBRL2.0
2-Chlorotoluene ug/LBRL0.50
4-Chlorotoluene ug/LBRL0.50
4-Isopropyltoluene ug/LBRL0.50
Acetone ug/LBRL5.0
Acrolein ug/LBRL20
Acrylonitrile ug/LBRL20
Benzene ug/LBRL0.50
Bromobenzene ug/LBRL0.50
Bromochloromethane ug/LBRL0.50
Bromodichloromethane ug/LBRL0.50
Bromoform ug/LBRL1.0
Bromomethane ug/LBRL1.0
Carbon disulfide ug/LBRL5.0
Carbon Tetrachloride ug/LBRL0.50
Chlorobenzene ug/LBRL0.50
Chloroethane ug/LBRL0.50
Chloroform ug/LBRL0.50
Chloromethane ug/LBRL0.50
cis-1,2-Dichloroethylene ug/LBRL0.50
cis-1,3-Dichloropropylene ug/LBRL0.50
Dibromochloromethane ug/LBRL0.50
Dibromomethane ug/LBRL0.50
Dichlorodifluoromethane ug/LBRL1.0
Ethylbenzene ug/LBRL0.50
Hexachlorobutadiene ug/LBRL2.0
This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories, Inc.
449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543
Phone: [phone] - Toll Free Number: 1-800/529-6364 - Fax: [phone] Page 8 of 14
5/8/18
Level II QC Report
7327 W. Friendly Drive
Project: Former Village Mart
(Winston-Salem, NC)
Terracon Consultants - Greensboro
Greensboro, NC 27410
Attn: Zach Tidmore
Prism Work Order: 8040553
Time Submitted: 4/27/2018 4:50:00PM
Result Limit
Reporting
Units Level
Spike
Result
Source
%REC
%REC
Limits RPD
RPD
Limit Notes Analyte
Volatile Organic Compounds by GC/MS - Quality Control
Batch P8E0130 - 5030B
Blank (P8E0130-BLK1)Prepared & Analyzed: 05/04/18
Isopropyl Ether ug/LBRL0.50
Isopropylbenzene (Cumene)ug/LBRL0.50
m,p-Xylenes ug/LBRL1.0
Methyl Butyl Ketone (2-Hexanone)ug/LBRL5.0
Methyl Ethyl Ketone (2-Butanone)ug/LBRL5.0
Methyl Isobutyl Ketone ug/LBRL5.0
Methylene Chloride ug/LBRL1.0
Methyl-tert-Butyl Ether ug/LBRL0.50
Naphthalene ug/LBRL1.0
n-Butylbenzene ug/LBRL1.0
n-Propylbenzene ug/LBRL0.50
o-Xylene ug/LBRL0.50
sec-Butylbenzene ug/LBRL0.50
Styrene ug/LBRL0.50
tert-Butylbenzene ug/LBRL0.50
Tetrachloroethylene ug/LBRL0.50
Toluene ug/LBRL0.50
trans-1,2-Dichloroethylene ug/LBRL0.50
trans-1,3-Dichloropropylene ug/LBRL0.50
Trichloroethylene ug/LBRL0.50
Trichlorofluoromethane ug/LBRL0.50
Vinyl acetate ug/LBRL2.0
Vinyl chloride ug/LBRL0.50
Xylenes, total ug/LBRL1.5
Heptane ug/L0.00
ug/L 50.00 80-124Surrogate: 4-Bromofluorobenzene 9949.7
ug/L 50.00 75-129Surrogate: Dibromofluoromethane 10251.2
ug/L 50.00 77-123Surrogate: Toluene-d8 9647.9
This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories, Inc.
449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543
Phone: [phone] - Toll Free Number: 1-800/529-6364 - Fax: [phone] Page 9 of 14
5/8/18
Level II QC Report
7327 W. Friendly Drive
Project: Former Village Mart
(Winston-Salem, NC)
Terracon Consultants - Greensboro
Greensboro, NC 27410
Attn: Zach Tidmore
Prism Work Order: 8040553
Time Submitted: 4/27/2018 4:50:00PM
Result Limit
Reporting
Units Level
Spike
Result
Source
%REC
%REC
Limits RPD
RPD
Limit Notes Analyte
Volatile Organic Compounds by GC/MS - Quality Control
Batch P8E0130 - 5030B
LCS (P8E0130-BS1)Prepared & Analyzed: 05/04/18
1,1,1,2-Tetrachloroethane ug/L19.7 0.50 20.00 79-13498
1,1,1-Trichloroethane ug/L20.3 0.50 20.00 75-136102
1,1,2,2-Tetrachloroethane ug/L21.0 0.50 20.00 62-127105
1,1,2-Trichloroethane ug/L21.9 0.50 20.00 70-140110
1,1-Dichloroethane ug/L20.9 0.50 20.00 78-130104
1,1-Dichloroethylene ug/L20.5 0.50 20.00 70-154103
1,1-Dichloropropylene ug/L20.5 0.50 20.00 71-136103
1,2,3-Trichlorobenzene ug/L18.5 2.0 20.00 58-14492
1,2,3-Trichloropropane ug/L19.9 1.0 20.00 71-127100
1,2,4-Trichlorobenzene ug/L18.5 1.0 20.00 66-13993
1,2,4-Trimethylbenzene ug/L20.8 0.50 20.00 75-133104
1,2-Dibromo-3-chloropropane ug/L18.6 2.0 20.00 63-13493
1,2-Dibromoethane ug/L19.6 0.50 20.00 77-13598
1,2-Dichlorobenzene ug/L19.6 0.50 20.00 78-12898
1,2-Dichloroethane ug/L21.7 0.50 20.00 68-131109
1,2-Dichloropropane ug/L21.3 0.50 20.00 77-130106
1,3,5-Trimethylbenzene ug/L20.8 0.50 20.00 75-131104
1,3-Dichlorobenzene ug/L19.7 0.50 20.00 77-12598
1,3-Dichloropropane ug/L21.6 0.50 20.00 76-132108
1,4-Dichlorobenzene ug/L19.1 0.50 20.00 75-12696
2,2-Dichloropropane ug/L20.5 2.0 20.00 29-149102
2-Chlorotoluene ug/L20.1 0.50 20.00 74-126101
4-Chlorotoluene ug/L19.8 0.50 20.00 78-12999
4-Isopropyltoluene ug/L19.7 0.50 20.00 69-13299
Acetone ug/L38.6 5.0 40.00 40-16696
Acrolein ug/L42.9 20 40.00 70-130107
Acrylonitrile ug/L39.8 20 40.00 81-12799
Benzene ug/L21.5 0.50 20.00 77-128108
Bromobenzene ug/L19.3 0.50 20.00 78-12997
Bromochloromethane ug/L21.1 0.50 20.00 78-135105
Bromodichloromethane ug/L20.6 0.50 20.00 76-138103
Bromoform ug/L19.2 1.0 20.00 71-13596
Bromomethane ug/L13.0 1.0 20.00 41-16865
Carbon disulfide ug/L20.2 5.0 20.00 59-135101
Carbon Tetrachloride ug/L20.1 0.50 20.00 72-142100
Chlorobenzene ug/L19.9 0.50 20.00 78-11999
Chloroethane ug/L17.1 0.50 20.00 57-14286
Chloroform ug/L20.3 0.50 20.00 77-130102
Chloromethane ug/L16.2 0.50 20.00 47-14581
cis-1,2-Dichloroethylene ug/L19.2 0.50 20.00 76-14196
cis-1,3-Dichloropropylene ug/L21.8 0.50 20.00 65-140109
Dibromochloromethane ug/L20.1 0.50 20.00 75-134100
Dibromomethane ug/L21.1 0.50 20.00 76-138106
Dichlorodifluoromethane ug/L13.1 1.0 20.00 28-16365
Ethylbenzene ug/L20.9 0.50 20.00 80-127105
Hexachlorobutadiene ug/L17.8 2.0 20.00 61-13489
This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories, Inc.
449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543
Phone: [phone] - Toll Free Number: 1-800/529-6364 - Fax: [phone] Page 10 of 14
5/8/18
Level II QC Report
7327 W. Friendly Drive
Project: Former Village Mart
(Winston-Salem, NC)
Terracon Consultants - Greensboro
Greensboro, NC 27410
Attn: Zach Tidmore
Prism Work Order: 8040553
Time Submitted: 4/27/2018 4:50:00PM
Result Limit
Reporting
Units Level
Spike
Result
Source
%REC
%REC
Limits RPD
RPD
Limit Notes Analyte
Volatile Organic Compounds by GC/MS - Quality Control
Batch P8E0130 - 5030B
LCS (P8E0130-BS1)Prepared & Analyzed: 05/04/18
Isopropyl Ether ug/L20.7 0.50 20.00 60-154104
Isopropylbenzene (Cumene)ug/L20.7 0.50 20.00 70-130103
m,p-Xylenes ug/L43.0 1.0 40.00 77-133108
Methyl Butyl Ketone (2-Hexanone)ug/L19.9 5.0 20.00 64-13799
Methyl Ethyl Ketone (2-Butanone)ug/L20.0 5.0 20.00 71-134100
Methyl Isobutyl Ketone ug/L21.0 5.0 20.00 69-134105
Methylene Chloride ug/L21.1 1.0 20.00 73-131105
Methyl-tert-Butyl Ether ug/L19.9 0.50 20.00 68-135100
Naphthalene ug/L18.2 1.0 20.00 64-13691
n-Butylbenzene ug/L20.5 1.0 20.00 68-134103
n-Propylbenzene ug/L20.6 0.50 20.00 72-132103
o-Xylene ug/L20.8 0.50 20.00 78-128104
sec-Butylbenzene ug/L20.0 0.50 20.00 71-131100
Styrene ug/L20.5 0.50 20.00 78-129102
tert-Butylbenzene ug/L20.6 0.50 20.00 70-132103
Tetrachloroethylene ug/L19.4 0.50 20.00 80-12997
Toluene ug/L21.2 0.50 20.00 76-131106
trans-1,2-Dichloroethylene ug/L21.1 0.50 20.00 76-135106
trans-1,3-Dichloropropylene ug/L22.0 0.50 20.00 67-140110
Trichloroethylene ug/L20.4 0.50 20.00 77-133102
Trichlorofluoromethane ug/L17.2 0.50 20.00 62-14886
Vinyl acetate ug/L23.7 2.0 20.00 34-167118
Vinyl chloride ug/L16.9 0.50 20.00 57-14184
Xylenes, total ug/L63.8 1.5 60.00 77-133106
ug/L 50.00 80-124Surrogate: 4-Bromofluorobenzene 10250.8
ug/L 50.00 75-129Surrogate: Dibromofluoromethane 9949.6
ug/L 50.00 77-123Surrogate: Toluene-d8 9949.4
This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories, Inc.
449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543
Phone: [phone] - Toll Free Number: 1-800/529-6364 - Fax: [phone] Page 11 of 14
5/8/18
Level II QC Report
7327 W. Friendly Drive
Project: Former Village Mart
(Winston-Salem, NC)
Terracon Consultants - Greensboro
Greensboro, NC 27410
Attn: Zach Tidmore
Prism Work Order: 8040553
Time Submitted: 4/27/2018 4:50:00PM
Result Limit
Reporting
Units Level
Spike
Result
Source
%REC
%REC
Limits RPD
RPD
Limit Notes Analyte
Volatile Organic Compounds by GC/MS - Quality Control
Batch P8E0130 - 5030B
LCS Dup (P8E0130-BSD1)Prepared & Analyzed: 05/04/18
1,1,1,2-Tetrachloroethane ug/L19.9 0.50 20.00 2079-134100 1
1,1,1-Trichloroethane ug/L20.0 0.50 20.00 2075-136100 2
1,1,2,2-Tetrachloroethane ug/L20.4 0.50 20.00 2062-127102 3
1,1,2-Trichloroethane ug/L21.4 0.50 20.00 2070-140107 2
1,1-Dichloroethane ug/L19.8 0.50 20.00 2078-13099 6
1,1-Dichloroethylene ug/L19.2 0.50 20.00 2070-15496 7
1,1-Dichloropropylene ug/L20.1 0.50 20.00 2071-136100 2
1,2,3-Trichlorobenzene ug/L18.0 2.0 20.00 2058-14490 3
1,2,3-Trichloropropane ug/L19.5 1.0 20.00 2071-12797 2
1,2,4-Trichlorobenzene ug/L18.2 1.0 20.00 2066-13991 2
1,2,4-Trimethylbenzene ug/L19.6 0.50 20.00 2075-13398 6
1,2-Dibromo-3-chloropropane ug/L19.8 2.0 20.00 2063-13499 7
1,2-Dibromoethane ug/L19.5 0.50 20.00 2077-13598 0.5
1,2-Dichlorobenzene ug/L19.0 0.50 20.00 2078-12895 3
1,2-Dichloroethane ug/L21.1 0.50 20.00 2068-131105 3
1,2-Dichloropropane ug/L20.7 0.50 20.00 2077-130104 3
1,3,5-Trimethylbenzene ug/L20.0 0.50 20.00 2075-131100 4
1,3-Dichlorobenzene ug/L18.7 0.50 20.00 2077-12593 5
1,3-Dichloropropane ug/L21.0 0.50 20.00 2076-132105 3
1,4-Dichlorobenzene ug/L18.5 0.50 20.00 2075-12692 3
2,2-Dichloropropane ug/L19.8 2.0 20.00 2029-14999 3
2-Chlorotoluene ug/L18.8 0.50 20.00 2074-12694 7
4-Chlorotoluene ug/L19.2 0.50 20.00 2078-12996 3
4-Isopropyltoluene ug/L18.8 0.50 20.00 2069-13294 5
Acetone ug/L38.0 5.0 40.00 2040-16695 1
Acrolein ug/L41.6 20 40.00 2070-130104 3
Acrylonitrile ug/L36.7 20 40.00 2081-12792 8
Benzene ug/L20.6 0.50 20.00 2077-128103 4
Bromobenzene ug/L18.5 0.50 20.00 2078-12992 5
Bromochloromethane ug/L19.0 0.50 20.00 2078-13595 10
Bromodichloromethane ug/L19.9 0.50 20.00 2076-13899 4
Bromoform ug/L19.8 1.0 20.00 2071-13599 3
Bromomethane ug/L12.8 1.0 20.00 2041-16864 2
Carbon disulfide ug/L19.4 5.0 20.00 2059-13597 4
Carbon Tetrachloride ug/L18.6 0.50 20.00 2072-14293 7
Chlorobenzene ug/L19.0 0.50 20.00 2078-11995 5
Chloroethane ug/L16.8 0.50 20.00 2057-14284 2
Chloroform ug/L19.8 0.50 20.00 2077-13099 2
Chloromethane ug/L15.8 0.50 20.00 2047-14579 3
cis-1,2-Dichloroethylene ug/L18.7 0.50 20.00 2076-14194 3
cis-1,3-Dichloropropylene ug/L21.6 0.50 20.00 2065-140108 0.9
Dibromochloromethane ug/L19.7 0.50 20.00 2075-13498 2
Dibromomethane ug/L21.0 0.50 20.00 2076-138105 0.3
Dichlorodifluoromethane ug/L13.4 1.0 20.00 2028-16367 2
Ethylbenzene ug/L19.8 0.50 20.00 2080-12799 5
Hexachlorobutadiene ug/L16.9 2.0 20.00 2061-13485 5
This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories, Inc.
449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543
Phone: [phone] - Toll Free Number: 1-800/529-6364 - Fax: [phone] Page 12 of 14
5/8/18
Level II QC Report
7327 W. Friendly Drive
Project: Former Village Mart
(Winston-Salem, NC)
Terracon Consultants - Greensboro
Greensboro, NC 27410
Attn: Zach Tidmore
Prism Work Order: 8040553
Time Submitted: 4/27/2018 4:50:00PM
Result Limit
Reporting
Units Level
Spike
Result
Source
%REC
%REC
Limits RPD
RPD
Limit Notes Analyte
Volatile Organic Compounds by GC/MS - Quality Control
Batch P8E0130 - 5030B
LCS Dup (P8E0130-BSD1)Prepared & Analyzed: 05/04/18
Isopropyl Ether ug/L20.0 0.50 20.00 2060-154100 3
Isopropylbenzene (Cumene)ug/L19.6 0.50 20.00 2070-13098 5
m,p-Xylenes ug/L41.4 1.0 40.00 2077-133104 4
Methyl Butyl Ketone (2-Hexanone)ug/L21.0 5.0 20.00 2064-137105 6
Methyl Ethyl Ketone (2-Butanone)ug/L19.8 5.0 20.00 2071-13499 0.8
Methyl Isobutyl Ketone ug/L21.3 5.0 20.00 2069-134107 1
Methylene Chloride ug/L20.4 1.0 20.00 2073-131102 3
Methyl-tert-Butyl Ether ug/L19.8 0.50 20.00 2068-13599 0.9
Naphthalene ug/L18.5 1.0 20.00 2064-13692 2
n-Butylbenzene ug/L19.2 1.0 20.00 2068-13496 7
n-Propylbenzene ug/L19.4 0.50 20.00 2072-13297 6
o-Xylene ug/L20.8 0.50 20.00 2078-128104 0.1
sec-Butylbenzene ug/L19.1 0.50 20.00 2071-13196 4
Styrene ug/L20.4 0.50 20.00 2078-129102 0.3
tert-Butylbenzene ug/L19.0 0.50 20.00 2070-13295 8
Tetrachloroethylene ug/L18.8 0.50 20.00 2080-12994 3
Toluene ug/L20.6 0.50 20.00 2076-131103 3
trans-1,2-Dichloroethylene ug/L20.3 0.50 20.00 2076-135101 4
trans-1,3-Dichloropropylene ug/L22.1 0.50 20.00 2067-140110 0.5
Trichloroethylene ug/L19.7 0.50 20.00 2077-13398 4
Trichlorofluoromethane ug/L15.8 0.50 20.00 2062-14879 9
Vinyl acetate ug/L22.5 2.0 20.00 2034-167113 5
Vinyl chloride ug/L16.3 0.50 20.00 2057-14181 3
Xylenes, total ug/L62.2 1.5 60.00 2077-133104 2
ug/L 50.00 80-124Surrogate: 4-Bromofluorobenzene 9949.7
ug/L 50.00 75-129Surrogate: Dibromofluoromethane 10050.2
ug/L 50.00 77-123Surrogate: Toluene-d8 9949.5
Sample Extraction Data
Prep Method: 5030B
Lab Number Batch Date/TimeInitialFinal
P8E01308040553-01 05/04/18 10:4310 10mL mL
P8E01308040553-01 05/04/18 10:4310 10mL mL
P8E01308040553-02 05/04/18 10:4310 10mL mL
P8E01308040553-02 05/04/18 10:4310 10mL mL
This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories, Inc.
449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543
Phone: [phone] - Toll Free Number: 1-800/529-6364 - Fax: [phone] Page 13 of 14
Page 14 of 14