WS-6406_24174_CA_MRP_20141027

FEDERAL/STATE-LEAD MONITORING REPORT
Former Caraway Grocery (Incident #24174)
3419 Old Lexington Road
Asheboro, Randolph County, North Carolina
October 27, 2014
Terracon Project No. 70149641
Prepared for:
North Carolina Department of Environment and Natural Resources
Division of Waste Management
Raleigh, North Carolina
Prepared by:
Terracon Consultants, Inc.
Raleigh, North Carolina
Terracon Consultants, Inc. 2401 Brentwood Road, Suite 107 Raleigh, NC 27604
P 919-873-2211 F 919-873-9555 terracon.com
October 27, 2014
Mr. Herb Berger
North Carolina Department of Environment and Natural Resources
Division of Waste Management
1637 Mail Service Center
Raleigh, North Carolina 27699-1637
Email:[e-mail]
Re: Federal/State-Lead Monitoring Report
Former Caraway Grocery
3419 Old Lexington Road
Asheboro, Randolph County, North Carolina
UST Incident Number: 24174
Terracon Project No. 70149641
Dear Mr. Berger:
Terracon Consultants, Inc. (Terracon) is pleased to submit this Federal/State-Lead Monitoring Report
for the above referenced property. This report has been prepared in general accordance with North
Carolina Department of Environment and Natural Resources (NCDENR), UST Section Guidelines for
Assessment and Corrective Action for UST Releases,dated July 15, 2008, revised December 2013
and Task Authorization No. 01, approved on August 11, 2014.
If you have any questions regarding this report or the assessment activities, please contact us at
919-873-2211.
Sincerely,
Terracon Consultants, Inc.
Thomas A. Perdue, EI Michael T. Jordan, LG
Environmental Scientist Senior Geologist
Christopher L. Corbitt, LG
Senior Project Manager
Enclosures
Table of Contents
A.SITE INFORMATION ............................................................................................. 1
B.EXECUTIVE SUMMARY ....................................................................................... 2
C.SITE HISTORY AND CHARACTERIZATION ........................................................ 3
C.1 Site Setting ............................................................................................................................................ 4
C.2 Release Summary................................................................................................................................. 4
C.3 Previous Investigations ....................................................................................................................... 4
C.4 Water Supply Wells .............................................................................................................................. 6
C.5 Surface Water ....................................................................................................................................... 6
C.6 Land Use Information .......................................................................................................................... 6
D.ASSESSMENT INFORMATION ............................................................................ 7
D.1 Site Geology and Hydrogeology ........................................................................................................ 7
D.2 Sampling Activities ............................................................................................................................... 8
D.2.1 Free Product Evaluation ................................................................................................................... 8
D.2.2 Groundwater Sampling Activities ................................................................................................... 8
D.2.3 Analytical Results .............................................................................................................................. 9
E.CONCLUSIONS AND RECOMMENDATIONS ..................................................... 9
FIGURES
Figure 1: Site Location Map
Figure 2: Site Plan
Figure 3: Groundwater Elevation Map (August 12, 2014)
Figure 4: Groundwater Analytical Results Map (August 12, 2014)
Figure 5: Benzene Isoconcentration Map (August 12, 2014)
Figure 6: Benzene Concentrations versus Time
TABLES
Table 1: Water Supply Well Information
Table 2: Summary of Groundwater Analytical Results
Table 3: Monitoring Well Construction Information and Historical Groundwater
Elevations
Table 4: Summary of OSWER Vapor Intrusion Assessment
APPENDIX
Appendix A: Laboratory Analytical Results and Chain of Custody Forms
Appendix B: Photographs
Appendix C: Water Supply Well Map (Pyramid Environmental & Engineering, P.C.
dated March 18, 2010)
Former Caraway Grocery
Asheboro, North Carolina
Terracon Project No. 70149641
Incident No. 24174
October 27, 2014
Responsive ■Resourceful ■Reliable 1
DRAFT FEDERAL/STATE-LEAD MONITORING REPORT
A. SITE INFORMATION
Date of Report:October 27, 2014
NCDENR Incident No:27174
Facility ID:0-01818
Site Name:Former Caraway Grocery
Site Location:3419 Old Lexington Road
Asheboro, North Carolina 27205
Latitude:N 35.738292
Longitude:W 79.884234
UST Owner/Operator:NA/NCDENR State Lead Program
Current Property Owner: Mr. Don Johnson
3337 Old Lexington Road
Asheboro, North Carolina 27205
[phone]
Current Property
Occupant: Vacant
Consultant:Terracon Consultants, Inc. (Contact: Thomas A. Perdue, EI)
2401 Brentwood Road
Raleigh, North Carolina 27604
[phone]
Laboratory:Shealy Environmental Services (NCDENR No. 329)
106 Vantage Point Drive
West Columbia, South Carolina 29172
[phone]
Release Information:Release Discovery Date: 2002
Estimated Quantity: Unknown
Cause of Release: Underground Storage Tank System
Former USTs: one 270-gallon kerosene UST, one 275-gallon
gasoline UST, one 625-gallon gasoline, two 2,000-gallon gasoline
USTs
Former Caraway Grocery
Asheboro, North Carolina
Terracon Project No. 70149641
Incident No. 24174
October 27, 2014
Responsive ■Resourceful ■Reliable 2
I, Christopher L. Corbitt, a Licensed Geologist for Terracon Consultants, Inc., do certify that the
information contained in this report is correct and accurate to the best of my knowledge.
Christopher L. Corbitt, L.G.
NC License No. 1015
Terracon Consultants, Inc. is licensed to practice geology/engineering in North Carolina. The
certification number of the corporation is F-0869.
B. EXECUTIVE SUMMARY
The Former Caraway Grocery site, located at 3419 Old Lexington Road, is situated on the northwest
corner of a 13.76-acre parcel (Randolph County Parcel ID 7732742533) in Asheboro, North Carolina
(Figure 1). The site contains cleared and wooded land with an approximately 625-square foot
former gas station building with a former dispenser island canopy. The site previously operated the
following underground storage tanks (USTs):
One 270-gallon kerosene UST;
One 275-gallon gasoline UST;
One 625-gallon gasoline; and
Two 2,000-gallon gasoline USTs.
During a 2002 Limited Phase II Site Assessment, soil borings located near on-site UST systems
exhibited odors, visual staining, and soil contamination above NCDENR action levels. Groundwater
monitoring events began at the site in 2008 and the USTs were removed in 2010. A subsequent in-
situ soil remediation event was conducted at the site in 2011 and a mobile, multi-phase extraction
(MMPE) event was conducted at the site in 2012, which extracted a total of approximately 5,690
gallons of impacted groundwater and approximately 24.92 gallons of petroleum product as vapor
from monitoring wells MW-1A, MW-4, and MW-12 over a 96-hour time period. According to the most
recent groundwater monitoring event of 2013, GCL and 2L exceedences remain at the site.
Eleven potable water supply wells were identified within 1,000 feet of the source area. Three of the
eleven potable water supply wells were identified within 500 feet of the source area. According to
prior reports, municipal water is not available to the area.
At the direction of the NCDENR, Terracon mobilized to the site on August 12, 2014 to sample seven
on-site monitoring wells (MW-1A, MW-3, MW-4, MW-5, MW-9, MW-12, and MW-14) and one water
supply wells (SW-1) located near the site.
During the most recent sampling event, shallow groundwater depths in the monitoring wells ranged
Former Caraway Grocery
Asheboro, North Carolina
Terracon Project No. 70149641
Incident No. 24174
October 27, 2014
Responsive ■Resourceful ■Reliable 3
from approximately 13.20 to 30.64 feet below ground surface (bgs). Following well purging activities,
groundwater samples were collected from monitoring wells MW-1A, MW-3, MW-4, MW-5, MW-9,
MW-12, and MW-14, placed in laboratory provided containers and delivered to Shealy Environmental
Services, Inc., in West Columbia, North Carolina for analysis of volatile organic compounds (VOCs)
by EPA Method 6200B plus MTBE, EDB, and IPE. Due to the weight of the approximately three-foot
diameter concrete cover on water supply well SW-1, Terracon was unable to remove the concrete
cover safely; therefore a sample was not collected from water supply well SW-1. SW-1 was not
connected a discharge point outside of the well house.
Eleven petroleum constituents were reported in monitoring wells MW-1A, MW-3, MW-4, MW-5, MW-
9, and MW-12 above their respective 2L groundwater quality standards, including benzene which
was reported above its gross contamination level (GCL) of 5,000 micrograms per liter (µg/L) in MW-4
(5,200 µg/L) and MW-12 (7,800 µg/L). Seven other petroleum constituents were reported in MW-
1A, MW-3, MW-4, MW-5, MW-9, MW-12, and MW-14 below their respective 2L groundwater quality
standards.
Based on information obtained during the completion of Federal/State-Lead monitoring activities,
Terracon provides the following conclusions and findings.
Benzene was detected in two on-site wells above its GCL.
Eleven petroleum constituents were detected in on-site wells at levels that exceed their 2L
groundwater quality standards.
Benzene, ethylbenzene and naphthalene exceeded a target cancer risk (TCR) of 10-6 for the
groundwater to indoor air pathway. The following compounds exceeded a total hazard quotient
(THQ) of 1 from well MW-4: benzene, 1,2,4-trimethylbenzene and total xylenes. Based on the
distance of monitoring well MW-4 to the on-site structure (approximately 30 feet) and depth to
groundwater (24.23 feet bgs), there is a potential for vapor intrusion into the on-site structure,
although the building is not a residence.
Municipal water is not available at the site and the surrounding properties.
Groundwater monitoring wells were screened across saprolite and bedrock without an outer casing
which provided a hydraulic connection between shallow and deeper portions of the aquifer. The
construction of these wells could potentially enhance vertical migration of contaminants.
The remediation trenches may contribute to the migration of the contaminant plume.
C. SITE HISTORY AND CHARACTERIZATION
The purpose of this report is to evaluate the current status of the groundwater quality at the Former
Caraway Grocery site. Terracon completed this report to summarize the findings of assessment
activities performed on August 12, 2014 at the site located at 3419 Old Lexington Road in Asheboro,
Randolph County, North Carolina (Figure 1). This Federal/State-Lead Monitoring report was
Former Caraway Grocery
Asheboro, North Carolina
Terracon Project No. 70149641
Incident No. 24174
October 27, 2014
Responsive ■Resourceful ■Reliable 4
prepared for the site in response to a request by the Incident Manager, Mr. Herb Berger with the
NCDENR Division of Waste Management, State Lead Program.
The Federal/State-Lead Monitoring Report was prepared in general accordance with the 15A NCAC
2L .0115 regulations and the NCDENR Underground Storage Tank (UST) Section Guidelines for
Assessment and Corrective Action for UST Releases, dated July 15, 2008, revised December 2013,
under the supervision of Mr. Christopher L. Corbitt, a North Carolina registered licensed geologist
(North Carolina License No. 1015).
C.1 Site Setting
The site is located on the northwest corner of a 13.76-acre parcel and contains cleared and wooded
land with an approximately 625-square foot former gas station building with a former dispenser island
canopy. The site is depicted in Figure 2.
The adjacent property to the north consists of cleared and wooded land with the intersection of Old
Lexington Road and Caraway Mountain Road. Areas immediately to the east include Old Lexington
Road followed by cleared and wooded land with a vacant residential structure. The adjoining and
nearby properties to the south include cleared and wooded land with two residential structures. The
adjacent property to the west includes wooded land.
C.2 Release Summary
According to prior reports made available by NCDENR, the site operated as a fueling station from the
1920s to the 1980s and previously operated one 270-gallon kerosene UST, one 275-gallon gasoline
UST, one 625-gallon gasoline, and two 2,000-gallon gasoline USTs as well as a 500-gallon kerosene
AST. During a 2002 Limited Phase II Site Assessment, soil borings located near on-site UST
systems exhibited odors, visual staining, and soil contamination above NCDENR action levels. A
chronological summary of UST removal and subsequent assessment and remediation activities at
the site is discussed in the following section of the report.
C.3 Previous Investigations
In 2002, Pyramid Environmental & Engineering, P.C. (Pyramid) conducted a Limited Phase II Site
Assessment at the site to determine if the on-site UST system had impacted the site. Eleven soil
borings were installed by direct-push technology (DPT) in the vicinity of the former UST systems,
AST and dispensers. Refusal was encountered throughout the site between 3 and 15 feet below
grade surface (bgs) and soil staining and petroleum odors were observed in six borings. Six soil
samples were collected and submitted for laboratory analysis of total petroleum hydrocarbons (TPH)
gasoline range organics (GRO) and diesel range organics (DRO). GRO and DRO action levels were
exceeded in four samples collected indicating that a gasoline and kerosene release had occurred at
the site.
Terraine, Inc. conducted a Phase I Limited Site Assessment at the site in 2008 at the direction of
NCDENR which included the installation of two groundwater monitoring wells, MW-1 and MW-2. A
Former Caraway Grocery
Asheboro, North Carolina
Terracon Project No. 70149641
Incident No. 24174
October 27, 2014
Responsive ■Resourceful ■Reliable 5
groundwater sample was collected for laboratory analysis from each monitoring well. According to
laboratory analysis, 13 constituents were reported above 2L groundwater quality standards from both
samples.
In March of 2010, the former USTs and associated dispensers and piping were removed from the
ground. Pyramid conducted the UST removal oversight, which removed one 270-gallon kerosene
UST, one 275-gallon gasoline UST, one 625-gallon gasoline UST, and two 2,000-gallon gasoline
USTs and one 500-gallon kerosene AST. Approximately 248.48 tons of contaminated soil was
removed from the site and disposed of at an off-site location. Confirmation soil samples and post-
excavation soil samples from the UST systems indicated that contaminated soils, including benzene
and naphthalene greater than 100 times the soil-to-groundwater maximum soil contamination
concentrations (MSCCs), remained after UST excavations. Monitoring well MW-1 was destroyed
during UST removal activities.
Fifteen additional monitoring wells (MW-1A, and MW-3 through MW-15, and vapor extraction well
VE-1) were installed at the site in 2010 as part of the Comprehensive Site Assessment (CSA)
conducted by Pyramid. A groundwater sample was collected from each monitoring well and
submitted for laboratory analysis. According to laboratory results, 2L groundwater quality standard
exceedences were reported in numerous wells throughout the site; however, GCL exceedences
were not reported. The CSA indicated that municipal water supply is not available to the site or site
vicinity and identified 11 water supply wells within 1,000 feet of the site. Water supply well SW-1,
located approximately 350 feet to the south of the site, was also sampled and did not exhibit
detectable concentrations.
In June of 2011, Progress Environmental, Inc. (Progress) conducted active remediation at the site.
Two trenches were excavated and approximately 321.24 tons of contaminated soil was removed
from the site. One trench was located in the vicinity of the former gasoline and kerosene USTs on
the southern side of the structure and the down-gradient position of those USTs that measured
approximately four to five feet wide by 115 feet long and varied between 9 and 15 feet deep. A
second trench was located in the vicinity of the former gasoline UST and an oil changing location
located on the northern side of the on-site structure which measured four to five feet wide by 20 feet
long and approximately 15 feet deep. After excavation limits were reached for both trenches,
approximately 6,800 total pounds of PermeOx® Plus for in-situ soil remediation at the site. The
trenches were backfilled with imported material.
After the in-situ soil remediation activities, Progress returned to the site on September 9, 2011 to
sample the existing monitoring wells (MW-1A through MW-15 and VE-1). According to laboratory
results, 2L exceedences still remained at the site in the groundwater samples collected. Generally
lower concentrations were reported in the groundwater samples than in prior sampling events.
Progress returned to the site again in February 2012 to sample the existing monitoring wells (MW-1A
through MW-15 and VE-1) and to survey top of casings for monitoring wells. Based on groundwater
elevations, groundwater was estimated to flow towards the east and northeast at the site. According
Former Caraway Grocery
Asheboro, North Carolina
Terracon Project No. 70149641
Incident No. 24174
October 27, 2014
Responsive ■Resourceful ■Reliable 6
to laboratory results, 2L exceedences still remained at the site in the groundwater samples collected;
however, wells located immediately outside the source area saw an increase of concentrations in
petroleum constituents.
A MMPE event was conducted by Progress as well as monitoring well sampling as summarized in an
Active Remediation Monitoring Report dated May 24, 2012. An initial 96-hour MMPE event was
completed at the site between April 2 and April 6, 2012, which extracted a total of approximately
5,690 gallons of impacted groundwater and approximately 24.92 gallons of petroleum product as
vapor from monitoring wells MW-1A, MW-4, and MW-12. Progress returned to the site on May 4,
2012 to collect groundwater samples from the on-site monitoring wells (MW-1A through MW-15 and
VE-1). Based on groundwater elevations, groundwater was estimated to flow towards the east and
southeast at the site. According to laboratory analysis, six wells reported petroleum concentrations
in exceedences of 2L groundwater quality standards.
According to the most recent Groundwater Monitoring Report, conducted by Crawford Environmental
Services dated August 8, 2013, the groundwater monitoring wells (MW-1A through MW-15 and VE-
1) were sampled. Eight monitoring wells exhibited 2L exceedences with benzene reported above its
5,000 μg/L GCL in MW-12 (8,560 μg/L) and 1,2-Dibromoethane (EDB) reported above its 50 μg/L
GCL in MW-5 (79.1 μg /L) and MW-12 (134 μg /L).
C.4 Water Supply Wells
Eleven water supply wells were identified within 1,000 feet of the UST basin (source area).
Municipal water is not available to properties located within 1,000 feet of the source area. Results of
the water-supply well inventory from previous investigations by other consultants are presented in
Table 1 and well locations are depicted in Appendix C.
C.5 Surface Water
According to the USGS Farmer, NC topographic map dated 1999, the site is situated on a
topographic divide that generally parallels Old Lexington Road. Topography at the site slopes to the
south/southwest. The site is located in the upper reaches of the drainage basin for Back Creek. The
topographic map indicates that Back Creek Lake is located approximately 1,200 feet to the west of
the site. Terracon observed an unnamed pond located approximately 850 feet to the south of the
site during field events. Surface waters are depicted on Figure 1.
C.6 Land Use Information
Adjacent properties to the north consist of cleared and wooded land and the intersection of Old
Lexington Road and Caraway Mountain Road. Areas immediately to the east include Old Lexington
Road, cleared and wooded land and a vacant residential structure. The adjoining and nearby
properties to the south include cleared and wooded land with two residential structures. The
adjacent property to the west is wooded.
Former Caraway Grocery
Asheboro, North Carolina
Terracon Project No. 70149641
Incident No. 24174
October 27, 2014
Responsive ■Resourceful ■Reliable 7
D. ASSESSMENT INFORMATION
D.1 Site Geology and Hydrogeology
The following resources were reviewed to evaluate site-specific geological and hydrogeological
characteristics.
Farmer Quadrangle, North Carolina, USGS 7.5-minute series topographic map, dated 1994 (Figure
1).
Geologic Map of North Carolina, dated 1985.
Soil Survey of Randolph County, North Carolina, US Department of Agriculture, Natural Resources
Conservation Service, Web Soil Survey via the Internet,http://websoilsurvey.nrcs.usda.gov/app/.
The site is located within the Carolina Slate Belt of the Piedmont Physiographic Province. The site is
underlain by metavolcanic-epiclastic rocks, consisting of metamorphosed argillite, mudstone,
volcanic sandstone, conglomerate, and volcanic rock. The Piedmont Physiographic Province
generally consists of low to medium elevation, rounded hills and long rolling northeast to southwest
trending ridges with incised creeks and river channels.
In-place chemical and physical weathering of parent rocks typically form residual soils in the
Piedmont region. Weathering is facilitated by the presence of fractures, joints, and less resistant
minerals in the rock. In areas not altered by erosion, alluvial deposition or anthropogenic activities,
the typical residual soil profile consists of clay-rich unconsolidated materials at the surface,
transitioning to sandy silts and silty sands at depth. Typically, the boundary between soil and rock is
not sharply defined. This transitional zone is termed “partially weathered rock.” Information obtained
from the Web Soil Survey for Randolph County, depicts soils on the site as the Georgeville gravelly
silty clay loam (GgB2).
In the Piedmont, groundwater generally occurs in pore spaces within soils and in the structural
features present in the underlying rock (i.e. joints, fractures, and faults). Recharge to the water table
is primarily by precipitation infiltrating the surficial soils and percolating downward under the influence
of gravity to the water table. Typically, the water table is not a level surface, but a subdued reflection
of the land surface. The depth to the water table is not consistent and is dependent upon several
factors that include the amount of rainfall, permeability of the soil, the extent of fracturing in the
underlying rock, and the influences of groundwater pumping. Groundwater typically flows in
directions parallel to the ground surface, and migrates to discharge points such as surface water
features, the toes of slopes or natural springs.
Fluctuations in the depth of the water table can be expected depending on variations in precipitation
and surface water run-off. Normally, the highest levels of the water table occur in late winter and
spring and the lowest levels occur in the late summer and fall. Terracon used prior top-of-well
casing elevation information available in the 2013 Groundwater Monitoring Report and collected
Former Caraway Grocery
Asheboro, North Carolina
Terracon Project No. 70149641
Incident No. 24174
October 27, 2014
Responsive ■Resourceful ■Reliable 8
depth to water measurements from the top of the well casings during the monitoring well sampling
activities in an attempt to estimate the groundwater flow direction. Current depth to water
measurements generally varied between 13.20 and 30.64 feet bgs at the site. Based on the
groundwater elevation data, groundwater is expected to flow to the southeast from the site (Figure
3). Monitoring Well Construction Records from previous reports depict that the following Type II
monitoring wells have screened intervals that intersect surfical groundwater in saprolite/partially
weather rock and also extend at least five feet into competent bedrock without an outer casing: MW-
1A, MW-2, MW-3, MW-4, MW-6, MW-7, MW-8, MW-11, MW-12, MW-13, MW-14, and MW-15.
These monitoring wells provide a hydraulic connection and vertical migration pathway of impacted
groundwater between separate portions of the aquifer.
D.2 Sampling Activities
D.2.1 Free Product Evaluation
Free product was not encountered in the wells during this assessment.
D.2.2 Groundwater Sampling Activities
Terracon mobilized to the site on August 12, 2014 to conduct groundwater sampling as requested by
the NCDENR. Prior to sample collection, Terracon gauged the groundwater elevations in monitoring
wells MW-1A, MW-2, MW-3, MW-4, MW-5, MW-6, MW-7, MW-8, MW-9, MW-10, MW-11, MW-12,
MW-13, MW-14, MW-15, and VE-1. Groundwater samples were collected from monitoring wells
MW-1A, MW-3, MW-4, MW-5, MW-9, MW-12, and MW-14. The approximate locations of the wells
are shown on the Site Plan (Figure 2). Current and historical groundwater elevation measurements
are provided in Table 3.
Prior to sampling, the monitoring wells were purged with a peristaltic pump using low flow sampling
techniques (i.e., <200 milliliters per minute) prior to sampling. The following parameters were
measured: pH, temperature, oxidation reduction potential (ORP), dissolved oxygen (DO), and
conductivity. After stabilization of field parameters (pH and conductivity), a groundwater sample was
collected directly into laboratory supplied containers at low flow sampling rates. The groundwater
samples were packed on ice and shipped via FedEx along with chain of custody documentation to
Shealy Environmental Services, Inc. (Shealy) in West Columbia, South Carolina (North Carolina Field
Services Certification #329) for analysis of VOCs by Standard Method 6200B including xylenes,
MTBE, EDB and IPE.
Terracon also attempted to sample one off-site water supply well (SW-1) to evaluate potential
impacts to off-site receptors. Water supply well SW-1 was operable and connected to a foot pump
located in the well house, but was not connected to a discharge point outside of the well house. At
the time of the field work, water supply well SW-1 was covered with an approximate three-foot
diameter concrete cover. Due to the weight of the concrete cover, Terracon was unable to remove
the concrete cover safely; therefore, a sample was not collected from water supply well SW-1.
According to Mr. Don Johnson, owner of the site, water supply well SW-1 is not in use.
Former Caraway Grocery
Asheboro, North Carolina
Terracon Project No. 70149641
Incident No. 24174
October 27, 2014
Responsive ■Resourceful ■Reliable 9
D.2.3 Analytical Results
According to laboratory analytical results, eleven petroleum constituents were reported in monitoring
wells MW-1A, MW-3, MW-4, MW-5, MW-9, and MW-12 above their respective 2L groundwater
quality standards, including benzene which was reported above its GCL of 5,000 µg/L in monitoring
wells MW-4 (5,200 µg/L) and MW-12 (7,800 µg/L). Seven other petroleum constituents were
reported in monitoring wells MW-1A, MW-3, MW-4, MW-5, MW-9, MW-12, and MW-14 below their
respective 2L groundwater quality standards.
The potential for vapor intrusion risk was evaluated using the EPA Office of Solid Waste and
Emergency Response (OSWER) Vapor Intrusion Screening Level Calculator based on the
groundwater data from monitoring well MW-4 located approximately 30 feet to the southeast of the
on-site structure. Benzene, ethylbenzene and naphthalene exceeded a target cancer risk (TCR) of
10-6 for the groundwater to indoor air pathway. The following compounds exceeded a total hazard
quotient (THQ) of 1: benzene, 1,2,4-trimethylbenzene and total xylenes.
A benzene isoconcentration map is located in Figure 5 and a benzene concentration versus time
map for monitoring wells MW-1A, MW-4, MW-5, and MW-12 is located in Figure 6. The
groundwater analytical results from the monitoring wells and water supply wells are summarized in
Table 2 and the vapor intrusion risk is summarized in Table 4. Copies of the laboratory analytical
reports are provided in Appendix A.
E. CONCLUSIONS AND RECOMMENDATIONS
Based on information obtained during the completion of Federal/State Lead Monitoring activities,
Terracon provides the following conclusions and findings.
Benzene was detected in two on-site wells above its GCL.
Eleven petroleum constituents were detected in on-site wells at levels that exceed their 2L
groundwater quality standards.
Benzene, ethylbenzene and naphthalene exceeded a target cancer risk (TCR) of 10-6 for the
groundwater to indoor air pathway. The following compounds exceeded a total hazard quotient
(THQ) of 1 from well MW-4: benzene, 1,2,4-trimethylbenzene and total xylenes. Based on the
distance of monitoring well MW-4 to the on-site structure (approximately 30 feet) and depth to
groundwater (24.23 feet bgs), there is a potential for vapor intrusion into the on-site structure,
although the building is not a residence.
Municipal water is not available at the site and the surrounding properties.
Former Caraway Grocery
Asheboro, North Carolina
Terracon Project No. 70149641
Incident No. 24174
October 27, 2014
Responsive ■Resourceful ■Reliable 10
Groundwater monitoring wells were screened across saprolite and bedrock without an outer casing
which provided a hydraulic connection between shallow and deeper portions of the aquifer. The
construction of these wells could potentially enhance vertical migration of contaminants.
The remediation trenches may contribute to the migration of the contaminant plume.
Based on the data presented in this Federal/State-Lead Monitoring report, Terracon recommends the
following activities be completed at the site.
Further assessment for potential of vapor intrusion into the on-site structure if there is a change in
use.
Groundwater monitoring wells MW-1A, MW-2, MW-3, MW-7, MW-8, MW-11, MW-12, MW-13, and
MW-15 should be abandoned due to screens providing a hydraulic connection and vertical
migration pathway of impacted groundwater between separate portions of the aquifer.
Monitoring wells MW-1A, MW-13, and MW-15 should be reinstalled to depths above the bedrock
interface and sampled for VOCs. Monitoring well MW-12 should be replaced with a well pair.
F. REFERENCES
Limited Phase II Site Assessment, Pyramid Environmental & Engineering, P.C. dated April 10,
2002
Phase I Limited Site Assessment, Terraine, Inc. dated December 31, 2008
20-Day Report/Initial Abatement Action Report, Pyramid Environmental & Engineering, P.C.
dated April 8, 2010
Comprehensive Site Assessment, Pyramid Environmental & Engineering, P.C. dated
November 11, 2010
Active Remediation Monitoring Report, Progress Environmental, Inc. dated July 12, 2011
Active Remediation Monitoring Report, Progress Environmental, Inc. dated October 4, 2011
Active Remediation Monitoring Report, Progress Environmental, Inc. dated February 21, 2012
Active Remediation Monitoring Report, Progress Environmental, Inc. dated May 24, 2012
Groundwater Monitoring Report, Crawford Environmental Services dated August 8, 2013

FIGURES
SITE
Pond
Copyright:© 2013 National Geographic Society, i-cubed
N:\GIS\NCDENR_UST_Sites\70149641_CarawayGrcy_NC\T_project\mxd\70149641_Fig1_SiteLoc_082914_102.mxdSite Location Map FigureProject No.
Reviewed By:
Date:
Drawn By:
70149641
JDF
TAP
September 2014 2401 Brentwood Rd.Raleigh, NC 27604
PH. [phone] terracon.com
³
FORMER CARAWAY GROCERYINCIDENT NUMBER 241743419 OLD LEXINGTON ROADASHEBORO, NORTH CAROLINA
1^_
SITE COORDINATES: 79°12'47.982"W 34°43'15.202"N
0 2,500 5,0001,250 Feet
0 0.5 10.25 Miles
1:24,000
Data Source: USGS Farmer Quadrangle, 1994, 7.5-Minute Series
@A@A
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Old Lexington Road
FormerCaraway Grocery Mo
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N:\GIS\NCDENR_UST_Sites\70149641_CarawayGrcy_NC\T_project\mxd\70149641_Fig2_SitePlan_082914_102.mxdFigureProject No.
Reviewed By:
Date:
Drawn By:JDF
TAP
September 2014 2401 Brentwood Rd.Raleigh, NC 27604
PH. [phone] terracon.com
2 N:\GIS\NCDENR_UST_Sites\70149641_CarawayGrcy_NC\T_project\mxd\70149641_Fig2_SitePlan_082914_102.mxdData Sources:Well Locations - TerraconImagery - ESRI WMS³
FORMER CARAWAY GROCERYINCIDENT NUMBER 241743419 OLD LEXINGTON ROADASHEBORO, NC
70149641
^_
Site Plan
@A Monitoring Well
Former UST/AST Location
Former Dispenser Location
Remediation Trenches
1 inch = 45 feet
Tank #Type Content Size (gal.)Installed Removed1USTGasoline2,000 4/30/85 2/25/102USTGasoline2,000 4/30/85 2/25/103USTGasoline275Unknown (1920s?)2/25/104USTGasoline625Unknown (1920s?)2/25/105USTKerosene270Unknown (1920s?)2/25/106ASTKerosene500Unknown2/25/10
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FormerCaraway Grocery Mo
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Canopy
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WoodedArea
MW-375.60
VE-169.27
MW-974.15
MW-879.41
MW-780.91
MW-679.76
MW-577.82
MW-474.78
MW-1573.34
MW-1474.02
MW-1378.62
MW-1271.64
MW-1171.96
MW-1067.03
MW-274.78 MW-1A74.94
80
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N:\GIS\NCDENR_UST_Sites\70149641_CarawayGrcy_NC\T_project\mxd\70149641_Fig3_GWElev_091514_102.mxdFigureProject No.
Reviewed By:
Date:
Drawn By:JDF
TAP
September 2014 2401 Brentwood Rd.Raleigh, NC 27604
PH. [phone] terracon.com
3 N:\GIS\NCDENR_UST_Sites\70149641_CarawayGrcy_NC\T_project\mxd\70149641_Fig3_GWElev_091514_102.mxdNote:ft msl = feet above mean sea levelContours dashed where inferred
Data Sources:Well Locations - TerraconImagery - ESRI WMS³
FORMER CARAWAY GROCERYINCIDENT NUMBER 241743419 OLD LEXINGTON ROADASHEBORO, NC
70149641
^_
Groundwater Elevation Map(8/12/2014)
@A Monitoring Well
Potentiometric Contour
Est. Groundwater Flow Direction
UST/AST
Dispenser
Remediation Trenches
73.34 Groundwater Elevation (ft msl)1 inch = 45 feet
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MW-14
MW-9Benzene: 21,2-DCA: 1.3
MW-3Benzene: 1601,2-DCA: 12Naphthalene: 23
MW-5Benzene: 810Ethylbenzene: 800Isopropylbenzene: 85Naphthalene: 130n-Propylbenzene: 140Toluene: 14001,2,4-Trimethylbenzene: 570Total Xylenes: 2960
MW-1ABenzene: 4300Ethylbenzene: 1800Isopropylbenzene: 120MTBE: 61Naphthalene: 180Toluene: 15001,2,4-Trimethylbenzene: 1100Total Xylenes: 4590
MW-12Benzene: 7800Ethylbenzene: 2900Isopropylbenzene: 160MTBE: 99Naphthalene: 330n-Propylbenzene: 360Toluene: 36001,3,5-Trimethylbenzene: 6401,2,4-Trimethylbenzene:2200Total Xylenes: 8700
MW-4Benzene: 5200Ethylbenzene: 1700Isopropylbenzene: 110MTBE: 320Naphthalene: 230n-Propylbenzene: 260Toluene: 25001,2,4-Trimethylbenzene: 1200Total Xylenes: 4700
MW-10
MW-15
MW-11
MW-13
MW-8
MW-7
MW-6
MW-2
VE-1
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Source: Esri, DigitalGlobe, GeoEye, i-cubed, Earthstar Geographics,CNES/Airbus DS, USDA, USGS, AEX, Getmapping, Aerogrid, IGN, IGP,swisstopo, and the GIS User Community
N:\GIS\NCDENR_UST_Sites\70149641_CarawayGrcy_NC\T_project\mxd\70149641_Fig4_GWAnlytl_091514_102.mxdFigureProject No.
Reviewed By:
Date:
Drawn By:JDF
TAP
September 2014 2401 Brentwood Rd.Raleigh, NC 27604
PH. [phone] terracon.com
4 N:\GIS\NCDENR_UST_Sites\70149641_CarawayGrcy_NC\T_project\mxd\70149641_Fig4_GWAnlytl_091514_102.mxdNotes: - Monitoring wells MW-2, MW-6, MW-7, MW-8, MW-10, MW-11, MW-13, MW-15, and VE-1 were not sampled- All concentrations in micrograms per liter (…g/L)- Only compounds with 2L exceedances are shown on figure- Concentrations in bold indicate compounds reported above GCLs
Data Sources:- Well Locations - Terracon- Imagery - ESRI WMS³
FORMER CARAWAY GROCERYINCIDENT NUMBER 241743419 OLD LEXINGTON ROADASHEBORO, NC
70149641
^_
Groundwater Analytical Results Map(8/12/2014)
@A Monitoring Well UST/AST
Dispenser
Remediation Trenches 1 inch = 45 feet
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MW-92
MW-5810
MW-3160
MW-45200MW-127800
MW-1A4300
Canopy
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1 …g/L10 …g/L100 …g/L 1000 …g/LSource: Esri, DigitalGlobe, GeoEye, i-cubed, Earthstar Geographics,CNES/Airbus DS, USDA, USGS, AEX, Getmapping, Aerogrid, IGN, IGP,swisstopo, and the GIS User Community
N:\GIS\NCDENR_UST_Sites\70149641_CarawayGrcy_NC\T_project\mxd\70149641_Fig5_Benzene_092314_102.mxdFigureProject No.
Reviewed By:
Date:
Drawn By:JDF
TAP
September 2014 2401 Brentwood Rd.Raleigh, NC 27604
PH. [phone] terracon.com
5 N:\GIS\NCDENR_UST_Sites\70149641_CarawayGrcy_NC\T_project\mxd\70149641_Fig5_Benzene_092314_102.mxdNotes: - Monitoring wells MW-2, MW-6, MW-7, MW-8, MW-10, MW-11, MW-13, MW-15, and VE-1 were not sampled- All concentrations in micrograms per liter (…g/L)- Concentrations in bold indicate compounds reported above GCLs
Data Sources:- Well Locations - Terracon- Imagery - ESRI WMS³
FORMER CARAWAY GROCERYINCIDENT NUMBER 241743419 OLD LEXINGTON ROADASHEBORO, NC
70149641
^_
Benzene Isoconcentration Map(8/12/2014)
@A Monitoring Well
UST/AST
Dispenser
Remediation Trenches
Benzene Isocontour
1 inch = 45 feet
Figure:Date: September 2014
Project Number:
70149641
Benzene Concentrations versus Time
FORMER CARAWAY GROCERY
INCIDENT NUMBER 24174
3419 OLD LEXINGTON ROAD
ASHEBORO, NORTH CAROLINABenzene Concentration (ʅg/L)0
1,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
9,000
1/1/20107/1/20101/1/20117/1/20111/1/20127/1/20121/1/20137/1/20131/1/20147/1/2014MW-1A MW-4 MW-5 MW-12
USTs/ASTremoved (March 2010)Trench and PermeOxInstallation (June 2011)6
2401 Brentwood Road, Suite 107
Raleigh, North Carolina 27612
Date Sampled1993USTs/AST last used (1993)MMPE Event (April 2012)

TABLES
TABLE 1
Water Supply Well Information
Former Caraway Grocery
Asheboro, North Carolina
Terracon Project No. 70149641
NCDENR Incident No. 24174
3337 Old Lexington Road
Asheboro, NC 27205
626 Kennedy Farm Road
Trinity, NC 27370
1255 Back Creek Road
Asheboro, NC 27205
3437 Caraway Mountain Road
Asheboro, NC 27205
3256 Old Lexington Road
Asheboro, NC 27205
3334 Old Lexington Road
Asheboro, NC 27205
3338 Old Lexington Road
Asheboro, NC 27205
3354 Old Lexington Road
Asheboro, NC 27205
3388 Old Lexington Road
Asheboro, NC 27205
3437 Caraway Mountain Road
Asheboro, NC 27205
7732850084
SW-14 Robert Glenn Baber, Jr.3437 Caraway Mountain Road
SW-13 Robert Glenn Baber, Jr.3388 Old Lexington Road
7732756502
Parcel PIN Notes
SW-1 Don Johnson & Judy Fagge 3359 Old Lexington Road
3419 Old Lexington Road
Well No.Property Owner Mailing Address Property Address
7732642607
7732749558SW-12 Mark & Dawn Smith 3354 Old Lexington Road
7732842305
SW-11 Roger Herman Hill 3338 Old Lexington Road 7732842770
SW-10 Ruby Thompson Hill (LE)3334 Old Lexington Road
3328 Old Lexington Road
7732730454 Mobile home park, each trailer has a well
SW-7 Clayton Stoneman 1255 Back Creek Road 7732737849
SW-2, 3,
4, 5, 6 Clayton Stoneman 2422 Smyrna Grove Drive
2391 Smyrna Grove Drive
7732739978
SW-9 Roger Herman Hill 4.61 acres off Old Lexington
Road 7732846325
SW-8 Smyrna Grove Church &
Trustees 1275 Back Creek Road
TABLE 2
Summary of Groundwater Analytical Results
Former Caraway GroceryAsheboro, North Carolina
Terracon Project No. 70149641
NCDENR Incident No. 24174
3030C
Well/SampleI.D.
Depth to Water from Top of Casing (feet)Date Collected (mm/dd/yy)ChloroethaneMW-1 Not available 10/30/2008 1,120 33.6 13.9 0.670 NR NR ND ND 29.7 593 NR 63 7.54 130 NR NR 80.1 137 NR 262 NR 276 115 798 1,330B1 2,060 7,720 NR NR 38.5
Not available 6/30/2010 3,520 ND ND ND NR ND ND 47.5 35.3 1,160 ND 82.8 ND 69.3 ND ND 225 164 NR 952 ND 821 232 3,105 NA NA 8,370 2,110 2,940 74
Not available 9/9/2011 2,500 22.8 13.2 ND NR ND ND 21.9 61 572 ND 51.6 15 55.6 ND ND 37.1 112 NR 451 ND 39.2 47.5 555.7 NA NA 10.9 4,900 960 NR
20.61 2/8/2012 3,750 16.4 ND ND NR ND ND 18.7 63.9 727 ND 57.4 ND 297 ND ND 145 120 NR 932 ND 332 145 1,525 NA NA 12,700 12,800 1,890 87.1
27.08 5/4/2012 3,040 ND ND ND NR ND ND 85.4 55.8 1,540 ND 186 ND 275 ND ND 429 519 ND 2,990 ND 2,870 972 5,900 NA NA 15,900 31,400 7,440 NR
25.16 6/12/2013 4,110 19.1 ND ND NR ND 29.2 138 38.3 1,800 ND 108 ND 139 ND ND 309 241 73.1 6,530 ND 1,350 352 6,460 NA NA NR NR NR NR
25.06 8/12/2014 4,300 37 16J <1.9 <8.5 <8.5 <3.1 <1.2 30 1,800 NA 120 <0.89 61 <8.5 NA 180 <1.2 <0.75 1,500 NA 1,100 360 4,590 NA NA NA NA NA NA
Not available 10/30/2008 122 1.24 0.630 ND NR NR ND 13.6 10.1 45.3 NR 4.16 ND 20.1 NR NR 6.52 8.17 NR 10.5 NR NR 7.32 61.3 ND ND ND NR NR NA
Not available 6/30/2010 86.2 ND ND ND NR ND ND 19.5 13.9 2 ND ND ND 18 ND ND ND ND NR 6.3 ND ND ND 4.4 NA NA NR NR NR NR
Not available 9/9/2011 14.7 ND 0.97 ND NR ND ND 19.9 9.9 ND ND ND ND 2.1 ND ND ND ND NR ND ND ND ND ND NA NA 140 78.5 ND NR
28.48 2/8/2012 19.1 ND 0.72 ND NR ND ND 15.1 7.3 ND ND 1.4 ND 10.2 ND ND ND ND NR 0.5 ND ND ND ND NA NA 104 60 ND 11
27.03 5/4/2012 128 0.64 1.7 ND NR ND ND 16.1 8.3 7.6 ND 4.5 ND 9.4 ND ND 2.2 2.2 ND 5.7 ND 2.8 ND 10.5 NA NA 378 179 ND NR
25.83 6/12/2013 88.7 ND 0.71 ND NR ND ND 10.9 8.6 6.4 ND 2.5 ND 15.8 ND ND 2.6 1.5 ND 11.1 ND 4.2 1.1 16.9 NA NA NR NR NR NR
25.20 8/12/2014 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
Not available 6/30/2010 94.2 ND ND ND NR ND ND 1.6 2.7 54.7 ND 6.3 ND 1 ND ND ND 11.5 NR 3.2 ND ND 14.7 12.71 NA NA 150 953 240 17.5
Not available 9/9/2011 146 ND 4.9 2.7 NR ND ND 4.1 7.2 9.4 ND 5.3 3.1 1.7 ND ND ND 5.9 NR 2.3 ND 3.6 1.9 ND NA NA 760 649 254 NR
24.53 2/8/2012 275 5.5 9.5 2.7 NR ND ND 5.2 7.3 36.5 ND 11.9 ND 3.7 ND ND 5.1 15.3 NR 6.6 ND 7.5 9.6 5.1 NA NA 110 1,190 340 9.4
23.55 5/4/2012 240 4.4 6.7 2.3 NR ND ND 10.7 7.3 ND ND ND ND 3.8 ND ND ND 9 ND 9 ND 5..5 ND 9.5 NA NA 1,080 1,750 728 NR
23.89 6/12/2013 355 27 31.8 6.1 NR ND ND 9.4 8.2 63.7 ND 18.3 ND ND ND ND ND 28.5 ND 8.9 ND 25.8 3.51 18.1 NA NA NR NR NR NR
23.32 8/12/2014 160 6.6 9.3 3.5 0.6 1.8 <0.061 12 10 30 NA 9.6 1.9 7.1 <0.17 NA 23 15 <0.015 4.2 NA <0.17 9.7 8.8 NA NA NA NA NA NA
Not available 6/30/2010 2,860 ND ND ND NR ND ND 35.4 46.6 998 ND 77.8 ND 196 ND ND 269 176 ND 867 ND 706 224 2,483 NA NA 7,900 17,000 2,560 179
Not available 9/9/2011 2,050 18.3 9.4 ND NR ND ND ND 95.7 257 ND 26.8 12.8 434 ND ND 33.5 62.8 ND 84.6 ND 19.2 47.3 132.4 NA NA 7,410 4,710 ND NR
27.25 2/8/2012 2,780 ND ND ND NR ND ND 23.9 33.6 925 ND 71.9 ND 98.1 ND ND 139 166 ND 1,170 ND 474 192 1,818 NA NA 13,400 17,300 2,650 139
25.17 5/4/2012 2,090 ND ND ND NR ND ND 49.8 ND 765 ND 56.4 ND 74.8 ND ND 126 138 ND 1,950 ND 658 213 2,525 NA NA 13,500 21,700 4,670 NR
23.89 6/12/2013 3,830 17.5 ND ND NR ND 40.1 109.0 ND 1,540 ND 90 ND 65.6 ND ND 230 199 ND 7,570 ND 981 306 5,940 NA NA NR NR NR NR
24.23 8/12/2014 5,200 <0.84 16J <1.9 <8.5 <8.5 <3.1 <1.2 60 1,700 NA 110 <0.89 320 <8.5 NA 230 260 <0.75 2,500 NA 1,200 390 4,700 NA NA NA NA NA NA
Not available 6/30/2010 975 ND ND ND NR ND 31.9 36.8 6.6 520 ND 42.9 ND ND ND ND 88 69.4 ND 1,970 2.6 346 118 2,359 NA NA 5,010 11,600 1,090 11.3
Not available 9/9/2011 605 9.8 7.3 ND NR ND ND 16.9 3.7 341 ND 32.4 8.8 ND ND ND 46.5 53.7 ND 589 ND 150 44.7 855 NA NA 5,110 4,410 669 NR
24.22 2/8/2012 1,370 11.3 ND ND NR ND ND 41.6 ND 812 ND 62.9 ND ND ND ND 127 103 ND 3,260 ND 511 119 3,980 NA NA 9,820 20,700 2,990 17.9
23.92 5/4/2012 429 ND ND ND NR ND 2.6 13.1 3.2 224 ND 25.4 ND ND ND ND 53.4 46.8 ND 257 ND 182 46.9 636 NA NA 2,850 7,160 1,340 NR
21.95 6/12/2013 3,420 ND ND ND NR ND 79.1 92.4 ND 3,280 ND 146 ND ND ND ND 355 271 ND 14,200 ND 2,110 475 15,840 NA NA NR NR NR NR
22.75 8/12/2014 810 <0.84 13J <1.9 <8.5 <8.5 <3.1 <1.2 <2.6 800 NA 85 <0.89 <0.95 <8.5 NA 130 140 <0.75 1,400 NA 160 570 2,960 NA NA NA NA NA NA
Not available 6/30/2010 ND ND ND ND NR ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NA NA ND ND ND ND
Not available 9/9/2011 ND ND ND ND NR ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NA NA ND ND ND NR
21.32 2/8/2012 ND ND ND ND NR ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NA NA ND ND ND 7.5
20.88 5/4/2012 ND ND ND ND NR ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NA NA ND ND ND NR
19.41 6/12/2013 ND ND ND ND NR ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.73 ND 0.29J ND 1.36J NA NA NR NR NR NR
20.81 8/12/2014 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
Not available 6/30/2010 ND ND ND ND NR ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NA NA ND ND ND ND
Not available 9/9/2011 0.95 ND ND ND NR ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NA NA ND ND ND NR
16.09 2/8/2012 ND ND ND ND NR ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NA NA ND ND ND 18.5
15.81 5/4/2012 ND ND ND ND NR ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NA NA ND ND ND NR
13.54 6/12/2013 ND ND ND ND NR ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.39J ND ND ND 0.86 NA NA NR NR NR NR
15.59 8/12/2014 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
1 70 70 70 3,000 70 0.02 0.4 70 600 40 70 25 20 5 100 6 70 70 600 NE 400 400 500 700 200 400 700 200 15
5,000 6,900 8,500 15,000 NE 70,000 50 400 70,000 84,500 40,000 25,000 11,700 20,000 5,000 100,000 6,000 30,000 70,000 260,000 NE 28,500 25,000 85,500 NE NE NE NE NE 15,000
All results in µg/L. <- denotes less than sample reporting detection limit."-" denotes not analyzed. Grey shading denotes levels above the 2L standard.
Yellow shading denotes levels above the Gross Contamination Levels (GCLs).ND denotes non-detectNE - Not establishedNR - Not reported
NA - Not analyzedB1 - Analyte was detected in the associated method blank. Analyte concentration is greater than 10x the concentration found in the method blank.
MW-3
MW-5
MW-1A LeadC9-C18 AliphaticsC9-C22 AromaticsChloroform1,2-Dibromoethane1,2-DichloroethaneDiisopropyl Ether2L Standard (ug/L)
MADEP EPH/VPH
EthylbenzeneMW-6
MW-7
Analytical Method 6200B
n-Butylbenzene2-Hexanone Isopropylbenzenep-IsopropyltolueneMethyl tert butyl etherMethylene chloride4-Methyl-2-pentanonesec-Butylbenzenetert-ButylbenzneGCL (ug/L)C5-C8 AliphaticsC9-C12 AliphaticsC9-C10 Aromatics1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneXylenes (Total)Contaminant of Concern ĺ
BenzeneStyreneToluene1,2,3-TrichloropropaneNaphthalenen-PropylbenzeneMW-4
MW-2
1 of 1
TABLE 2
Summary of Groundwater Analytical Results
Former Caraway GroceryAsheboro, North Carolina
Terracon Project No. 70149641
NCDENR Incident No. 24174
3030C
Well/Sample
I.D.
Depth to Water from Top of
Casing (feet)
Date Collected
(mm/dd/yy)ChloroethaneNot available 6/30/2010 ND ND ND ND NR ND ND ND ND 1.9 ND ND ND ND ND ND ND ND ND ND ND ND ND ND NA NA ND ND ND 41.1
Not available 9/9/2011 17 ND ND ND NR ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NA NA ND ND ND NR
17.17 2/8/2012 ND ND ND ND NR ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NA NA ND ND ND 129
16.77 5/4/2012 ND ND ND ND NR 6.5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NA NA ND 80.2 ND NR
14.61 6/12/2013 ND ND ND ND NR ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NA NA NR NR NR NR
16.92 8/12/2014 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
Not available 6/30/2010 49.5 8.1 ND ND NR ND ND 0.83 0.5 97.3 ND 22 ND 1.8 ND ND 23.3 42.8 ND 152 ND 177 63.2 523 NA NA 352 3,110 558 ND
Not available 9/9/2011 2.6 ND 1.6 ND NR ND ND ND ND ND ND 1.7 ND 0.57 ND ND ND ND ND ND ND ND ND ND NA NA 106 85.5 ND NR
20.15 2/8/2012 107 4.9 11.4 ND NR ND ND ND ND 13.8 ND 12.5 ND ND ND ND ND 9.9 ND 15.9 ND 3 3 31.3 NA NA 1,350 719 203 37.9
19.10 5/4/2012 40.7 ND 11.3 ND NR ND ND ND ND 3.7 ND 3.6 ND ND ND ND ND 2.4 ND 2.4 ND ND ND ND NA NA 753 368 135 NR
16.81 6/12/2013 52.8 0.76 2.9 ND NR ND ND 0.51 0.36J 10.9 ND 5 ND 0.53 ND ND ND 4.2 ND 9.3 ND 1.8 1.3 16.7 NA NA NR NR NR NR
18.04 8/12/2014 2 <0.017 1.4 <0.037 <0.17 <0.17 <0.061 1.3 0.59 0.31J NA 0.69 <0.018 1.4 <0.17 NA <0.17 <0.024 <0.015 0.18J NA <0.17 <0.17 <0.62 NA NA NA NA NA NA
Not available 6/30/2010 ND ND ND ND NR ND ND ND ND ND ND ND ND 1.1 ND ND ND ND ND ND ND ND ND ND NA NA ND ND ND ND
Not available 9/9/2011 ND ND ND ND NR ND ND ND 0.65 ND ND ND ND 2.4 ND ND ND ND ND ND ND ND ND ND NA NA ND ND ND NR
28.63 2/8/2012 ND ND ND ND NR ND ND ND ND ND ND ND ND 1.3 ND ND ND ND ND ND ND ND ND ND NA NA ND ND ND 105
27.82 5/4/2012 ND ND ND ND NR ND ND ND ND ND ND ND ND 0.97 ND ND ND ND ND ND ND ND ND ND NA NA ND ND ND NR
23.61 6/12/2013 ND ND ND ND NR ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.56 ND ND ND 0.25J NA NA NR NR NR NR
28.35 8/12/2014 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
Not available 6/30/2010 ND ND ND ND NR ND ND ND ND ND ND ND ND 1.3 ND ND ND ND ND ND ND ND ND ND NA NA ND ND ND ND
Not available 9/9/2011 ND ND ND ND NR ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NA NA ND ND ND NR
33.29 2/8/2012 ND ND ND ND NR ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NA NA ND ND ND 74.2
32.04 5/4/2012 ND ND ND ND NR ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NA NA ND 75.4 ND NR
31.86 6/12/2013 ND ND ND ND NR ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.401 ND ND ND 0.25J NA NA NR NR NR NR
29.20 8/12/2014 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
Not available 6/30/2010 94.4 ND ND ND NR ND ND 49.5 89.1 310 ND 28.6 ND 347 12.7 ND 46.2 61 ND 525 ND 241 70.4 ND NA NA 2,930 8,080 ND ND
Not available 9/9/2011 3,170 11.4 9.3 ND NR ND 0.93 130 98.6 63.7 8.8 42.7 10.2 278 ND 38.6 41.5 35.5 ND 470 ND 49.2 31.9 561 NA NA 12,500 3,670 ND NR
21.17 2/8/2012 4,200 ND ND ND NR ND ND 159 78 264 ND 50.7 ND 289 ND 283 92.6 63.7 ND 772 ND 229 145 1,989 NA NA 13,800 13,400 2,680 ND
19.95 5/4/2012 4,950 ND ND ND NR ND ND 257 72.7 891 ND 95.7 ND ND ND ND 174 182 ND 3,010 1,510 620 6,240 32.8 NA NA 19,000 31,100 5,320 NR
15.61 6/12/2013 8,560 ND ND ND NR ND 134 377 57.6 3,210 ND 158 ND 131 ND ND 376 384 ND 10,700 ND 2,580 661 12,890 NA NA NR NR NR NR
19.28 8/12/2014 7,800 <0.84 21J <1.9 <8.5 <8.5 <3.1 <1.2 46 2,900 NA 160 <0.89 99 <8.5 NA 330 360 <0.75 3,600 NA 640 2,200 8,700 NA NA NA NA NA NA
Not available 6/30/2010 ND ND ND ND NR ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NA NA ND ND ND ND
Not available 9/9/2011 ND ND ND ND NR ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NA NA ND 92.7 ND NR
14.25 2/8/2012 ND ND ND ND NR ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NA NA ND ND ND ND
14.08 5/4/2012 ND ND ND ND NR 1.5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NA NA ND ND ND NR
12.10 6/12/2013 ND ND ND ND NR ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.56 ND ND ND 0.86J NA NA NR NR NR NR
15.23 8/12/2014 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
Not available 6/30/2010 ND ND ND ND NR ND ND ND ND 17.5 ND 3 ND ND ND ND ND 7.9 ND ND ND 22.4 8.1 3.6 NA NA ND 204 ND ND
Not available 9/9/2011 ND ND ND ND NR ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NA NA ND ND ND NR
23.96 2/8/2012 0.74 ND 0.8 ND NR ND ND ND ND 2.3 ND 2 ND ND ND ND ND 1.2 ND ND ND ND ND ND NA NA 123 76.4 ND 40
22.70 5/4/2012 ND ND ND ND NR ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NA NA ND ND ND NR
20.97 6/12/2013 0.33J ND ND ND NR ND ND ND ND 2 ND 0.99 ND 0.86 ND ND ND 0.59 ND 0.62 ND 1.1 0.40J 4.1 NA NA NR NR NR NR
20.96 8/12/2014 0.27 <0.017 <0.01 <0.037 <0.17 <0.17 <0.061 <0.023 <0.052 <0.17 NA <0.029 <0.018 <0.019 <0.17 NA 0.21J <0.024 <0.015 0.53 NA <0.17 <0.17 <0.46 NA NA NA NA NA NA
1 70 70 70 3,000 70 0.02 0.4 70 600 40 70 25 20 5 100 6 70 70 600 NE 400 400 500 700 200 400 700 200 15
5,000 6,900 8,500 15,000 NE 70,000 50 400 70,000 84,500 40,000 25,000 11,700 20,000 5,000 100,000 6,000 30,000 70,000 260,000 NE 28,500 25,000 85,500 NE NE NE NE NE 15,000
All results in µg/L.
<- denotes less than sample reporting detection limit."-" denotes not analyzed. Grey shading denotes levels above the 2L standard.Yellow shading denotes levels above the Gross Contamination Levels (GCLs).ND denotes non-detectNE - Not establishedNR - Not reportedNA - Not analyzedB1 - Analyte was detected in the associated method blank. Analyte concentration is greater than 10x the concentration found in the method blank.p-IsopropyltolueneAnalytical Method 6200B MADEP EPH/VPH
Contaminant of Concern ĺ
Benzenen-Butylbenzenesec-Butylbenzenetert-ButylbenzneChloroform1,2-DibromoethaneC5-C8 AliphaticsC9-C12 AliphaticsC9-C10 AromaticsLeadToluene1,2,3-Trichloropropane1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneXylenes (Total)C9-C18 Aliphatics2L Standard (ug/L)
GCL (ug/L)
MW-13
MW-14 C9-C22 AromaticsMethyl tert butyl etherMethylene chloride4-Methyl-2-pentanoneNaphthalenen-PropylbenzeneStyrene1,2-DichloroethaneDiisopropyl EtherEthylbenzene2-Hexanone IsopropylbenzeneMW-8
MW-9
MW-10
MW-11
MW-12
2 of 3
TABLE 2Summary of Groundwater Analytical Results
Former Caraway GroceryAsheboro, North Carolina
Terracon Project No. 70149641NCDENR Incident No. 24174
3030C
Well/Sample
I.D.
Depth to Water
from Top of
Casing (feet)
Date Collected
(mm/dd/yy)ChloroethaneNot available 6/30/2010 ND ND ND ND NR ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NA NA ND ND ND NR
Not available 9/9/2011 ND 3.8 1.7 ND NR ND ND ND ND ND ND 1.7 2.9 ND ND ND ND 2.1 ND ND ND 3.3 ND ND NA NA 222 192 67.4 NR
9.62 2/8/2012 ND 7.7 ND ND NR ND ND ND ND 9.8 ND 7.3 ND ND ND ND ND 19.3 ND 0.52 ND 70.5 ND 24.7 NA NA 333 843 259 105
9.96 5/4/2012 ND 13.8 ND ND NR ND ND ND ND 22.2 ND 11 ND ND ND ND 2.2 28.6 ND 0.72 ND 139 ND 81.7 NA NA 714 1,450 635 NR
6.00 6/12/2013 0.34J 8.2 ND ND NR ND ND ND ND 5.9 ND 6.7 ND ND ND ND 1.4J 19.1 ND 1.2 ND 66.1 ND 22.2 NA NA NR NR NR NR
13.20 8/12/2014 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
Not available 6/30/2010 94.4 ND ND ND NR ND ND 1.8 11.3 2 ND 0.75 ND 39.6 ND ND ND ND ND 6.2 ND 1.2 12 12 NA NA NR NR ND 6
Not available 9/9/2011 ND ND ND ND NR ND ND 1.6 10.6 ND ND ND ND 47.2 ND ND ND ND ND ND ND ND ND ND NA NA NR NR ND NR
32.62 2/8/2012 ND ND ND ND NR ND ND 1.3 8.4 ND ND ND ND 41.5 ND ND ND ND ND ND ND ND ND ND NA NA NR NR ND 15.8
31.50 5/4/2012 ND ND ND ND NR ND ND 1.7 10.6 ND ND ND ND 48.7 ND ND ND ND ND ND ND ND ND ND NA NA 73.1 ND ND NR
29.46 6/12/2013 0.36J ND ND ND NR ND ND 1.8 8.7 0.26J ND ND ND 33 ND ND ND ND ND 0.96 ND ND ND 1.07 NA NA NR NR NR NR
30.64 8/12/2014 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
1 70 70 70 3,000 70 0.02 0.4 70 600 40 70 25 20 5 100 6 70 70 600 NE 400 400 500 700 200 400 700 200 15
5,000 6,900 8,500 15,000 NE 70,000 50 400 70,000 84,500 40,000 25,000 11,700 20,000 5,000 100,000 6,000 30,000 70,000 260,000 NE 28,500 25,000 85,500 NE NE NE NE NE 15,000
All results in µg/L. <- denotes less than sample reporting detection limit."-" denotes not analyzed. Grey shading denotes levels above the 2L standard.Yellow shading denotes levels above the Gross Contamination Levels (GCLs).ND denotes non-detectNE - Not establishedNR - Not reportedNA - Not analyzedB1 - Analyte was detected in the associated method blank. Analyte concentration is greater than 10x the concentration found in the method blank.p-IsopropyltolueneAnalytical Method 6200B MADEP EPH/VPH
Contaminant of Concern ĺ
Benzenen-Butylbenzenesec-Butylbenzenetert-ButylbenzneChloroform1,2-DibromoethaneC5-C8 AliphaticsC9-C12 AliphaticsC9-C10 AromaticsLeadToluene1,2,3-Trichloropropane1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneXylenes (Total)C9-C18 AliphaticsMW-15
VE-1
2L Standard (ug/L)
GCL (ug/L)C9-C22 AromaticsMethyl tert butyl etherMethylene chloride4-Methyl-2-pentanoneNaphthalenen-PropylbenzeneStyrene1,2-DichloroethaneDiisopropyl EtherEthylbenzene2-Hexanone Isopropylbenzene3 of 3
TABLE 3
Monitoring Well Construction Information
and Historical Groundwater Elevations
Former Caraway Grocery
Asheboro, North Carolina
Terracon Project No. 70149641
NCDENR Incident No. 24174
Well Id Date Intalled
Well Casing
Depth (ft. BGS)
Screened Interval
(x to y ft. BGS)
Bottom of Well (ft.
BGS)
Top of Casing
Elevation (ft.)
Date Water
Level
Measured
Depth to Water
from Top of
Casing (ft.)
Free Product
Thickness (ft.)
Groundwater
Elevation (ft.) Comments
6/30/2010
9/9/2011
2/8/2012 20.61 None 71.39
5/4/2012 27.08 None 72.92
6/12/2013 25.16 None 74.84
8/12/2014 25.06 None 74.94
6/30/2010
9/9/2011
2/8/2012 28.48 None 71.5
5/4/2012 27.03 None 72.95
6/12/2013 25.83 None 74.15
8/12/2014 25.20 None 74.78
6/30/2010
9/9/2011
2/8/2012 24.53 None 74.39
5/4/2012 23.55 None 75.37
6/12/2013 23.89 None 75.03
8/12/2014 23.32 None 75.60
6/30/2010
9/9/2011
2/8/2012 27.25 None 71.76
5/4/2012 25.17 None 73.84
6/12/2013 23.89 None 75.12
8/12/2014 24.23 None 74.78
6/30/2010
9/9/2011
2/8/2012 24.22 None 76.13
5/4/2012 23.92 None 76.65
6/12/2013 21.95 None 78.62
8/12/2014 22.75 None 77.82
6/30/2010
9/9/2011
2/8/2012 21.32 None 79.25
5/4/2012 20.88 None 79.69
6/12/2013 19.41 None 81.16
8/12/2014 20.81 None 79.76
ft = feet
ft BGS = feet below grade surface
100.57
MW-1A 2008 2-inch
Type II1515-35 35 100
MW-5 June 2010 14 14-34 34
99.01 2-inch
Type II
MW-2 2008 35 35-50 50 99.98
MW-4 June 2010 20 20-40 40
2-inch
Type II
MW-3 June 2010 17 17-37 37 98.92 2-inch
Type II
2-inch
Type II
Not available
Not available
Not available
Not available
2-inch
Type IIMW-6 June 2010 17 17-37 37 100.57
Not available
Not available
Not available
Not available
Not available
Not available
Not available
Not available
Page 1 of 3
TABLE 3
Monitoring Well Construction Information
and Historical Groundwater Elevations
Former Caraway Grocery
Asheboro, North Carolina
Terracon Project No. 70149641
NCDENR Incident No. 24174
Well Id Date Intalled
Well Casing
Depth (ft. BGS)
Screened Interval
(x to y ft. BGS)
Bottom of Well (ft.
BGS)
Top of Casing
Elevation (ft.)
Date Water
Level
Measured
Depth to Water
from Top of
Casing (ft.)
Free Product
Thickness (ft.)
Groundwater
Elevation (ft.) Comments
6/30/2010
9/9/2011
2/8/2012 16.09 None 80.41
5/4/2012 15.81 None 80.69
6/12/2013 13.54 None 82.96
8/12/2014 15.59 None 80.91
6/30/2010
9/9/2011
2/8/2012 17.17 None 79.16
5/4/2012 16.77 None 79.56
6/12/2013 14.61 None 81.72
8/12/2014 16.92 None 79.41
6/30/2010
9/9/2011
2/8/2012 20.15 None 72.04
5/4/2012 19.10 None 73.09
6/12/2013 16.81 None 75.38
8/12/2014 18.04 None 74.15
6/30/2010
9/9/2011
2/8/2012 28.63 None 66.75
5/4/2012 27.82 None 67.56
6/12/2013 23.61 None 71.77
8/12/2014 28.35 None 67.03
6/30/2010
9/9/2011
2/8/2012 33.29 None 67.87
5/4/2012 32.04 None 69.12
6/12/2013 31.86 None 69.3
8/12/2014 29.20 None 71.96
6/30/2010
9/9/2011
2/8/2012 21.17 None 69.75
5/4/2012 19.95 None 70.97
6/12/2013 15.61 None 75.31
8/12/2014 19.28 None 71.64
ft = feet
ft BGS = feet below grade surface
Not available
2-inch
Type II
Not available
MW-8 June 2010 10 10-30 30 96.33
Not available
MW-7 June 2010 10 10-30 30 96.5
2-inch
Type II
Not available
MW-9 June 2010 10 10-30 30 92.19
Not available
2-inch
Type II
Not available
MW-10 June 2010 20 20-40 40 95.38
Not available
2-inch
Type II
Not available
MW-11 June 2010 18 18-38 38 101.16
Not available
2-inch
Type II
2-inch
Type II
Not available
Not available
MW-12 August 2010 10 10-30 30 90.92
Not available
Page 2 of 3
TABLE 3
Monitoring Well Construction Information
and Historical Groundwater Elevations
Former Caraway Grocery
Asheboro, North Carolina
Terracon Project No. 70149641
NCDENR Incident No. 24174
Well Id Date Intalled
Well Casing Depth
(ft. BGS)
Screened Interval
(x to y ft. BGS)
Bottom of Well (ft.
BGS)
Top of Casing
Elevation (ft.)
Date Water
Level
Measured
Depth to Water
from Top of
Casing (ft.)
Free Product
Thickness (ft.)
Groundwater
Elevation (ft.) Comments
6/30/2010
9/9/2011
2/8/2012 14.25 None 79.6
5/4/2012 14.08 None 79.77
6/12/2013 12.10 None 81.75
8/12/2014 15.23 None 78.62
6/30/2010
9/9/2011
2/8/2012 23.96 None 71.02
5/4/2012 22.70 None 72.28
6/12/2013 20.97 None 74.01
8/12/2014 20.96 None 74.02
6/30/2010
9/9/2011
2/8/2012 9.62 None 76.92
5/4/2012 9.96 None 76.58
6/12/2013 6.00 None 80.54
8/12/2014 13.20 None 73.34
6/30/2010
9/9/2011
2/8/2012 32.62 None 67.29
5/4/2012 31.50 None 68.41
6/12/2013 29.46 None 70.45
8/12/2014 30.64 None 69.27
ft = feet
ft BGS = feet below grade surface
Not available
2-inch
Type II
Not available
MW-14 August 2010 15 15-35 35 94.98
Not available
MW-13 August 2010 10 10-30 30 93.85
2-inch
Type II
Not available
MW-15 August 2010 10 10-30 30 86.54
Not available
2-inch
Type II
Not available
VE-1 June 2010 Outer casing: 0-69
Inner casing: 0-52 69-74 74 99.91
Not available
2-inch
Type III
Not available
Page 3 of 3
TABLE 4
Summary of OSWER Vapor Intrusion Assessment
Former Caraway Grocery
Asheboro, North Carolina
Terracon Project No. 70149641
NCDENR Incident No. 24174
x OSWER VAPOR INTRUSION ASSESSMENT
x Groundwater Concentration to Indoor Air Concentration (GWC-IAC) Calculator Version 3.3.1, May 2014 RSLs
x
x Parameter Symbol Value InstructionsxExposure Scenario Scenario Commercial Select residential or commercial scenario from pull down listxTarget Risk for Carcinogens TCR 1.00E-06xTarget Hazard Quotient for Non-Carcinogens THQ 1
Average Groundwater Temperature (oC)Tgw 25 Enter average of the stabilized groundwater temperature to correct Henry's Law Constant for groundwater target concentrations
x
x
Site Groundwater
Concentration
Calculated
Indoor Air
Concentration
VI
Carcinogenic
Risk
VI Hazard Inhalation Unit Risk Reference Concentration
x Cgw Cia IUR RfC
x CAS Chemical Name (ug/L)(ug/m3)(ug/m3)-1 (mg/m3)i
x 71-43-2 Benzene 5.2E+03 1.18E+03 7.5E-04 9.0E+00 7.80E-06 I 3.00E-02 Ix 98-82-8 Cumene 1.1E+02 5.17E+01 No IUR 3.0E-02 4.00E-01 Ix 108-20-3 Diisopropyl Ether 6.0E+01 6.28E+00 No IUR 2.0E-03 7.00E-01 Px 100-41-4 Ethylbenzene 1.7E+03 5.48E+02 1.1E-04 1.3E-01 2.50E-06 CA 1.00E+00 Ix 1634-04-4 Methyl tert-Butyl Ether (MTBE)3.2E+02 7.68E+00 1.6E-07 5.8E-04 2.60E-07 CA 3.00E+00 I
x 91-20-3 Naphthalene 2.3E+02 4.14E+00 1.1E-05 3.1E-01 3.40E-05 CA 3.00E-03 I
x 108-88-3 Toluene 2.5E+03 6.79E+02 No IUR 3.1E-02 5.00E+00 I
x 95-63-6 Trimethylbenzene, 1,2,4-3.9E+02 9.82E+01 No IUR 3.2E+00 7.00E-03 Px 1330-20-7 Xylenes 4.7E+03 9.95E+02 No IUR 2.3E+00 1.00E-01 I
Notes:
(1)Inhalation Pathway Exposure Parameters (RME):Units
Exposure Scenario Symbol Value Symbol Value Symbol ValueAveraging time for carcinogens (yrs)ATc_R_GW 70 ATc_C_GW 70 ATc_GW 70Averaging time for non-carcinogens (yrs)ATnc_R_GW 26 ATnc_C_GW 25 Atnc_GW 25Exposure duration (yrs)ED_R_GW 26 ED_C_GW 25 ED_GW 25Exposure frequency (days/yr)EF_R_GW 350 EF_C_GW 250 EF_GW 250Exposure time (hr/day)ET_R_GW 24 ET_C_GW 8 ET_GW 8
(2)Generic Attenuation Factors:
Source Medium of Vapors Symbol Value Symbol Value Symbol ValueGroundwater ( - )AFgw_R_GW 0.001 AFgw_C_GW 0.001 AFgw_GW 0.001Sub-Slab and Exterior Soil Gas ( - )AFss_R_GW 0.1 AFss_C_GW 0.1 AFss_GW 0.1
(3)FormulasCia, target = MIN( Cia,c; Cia,nc)Cia,c (ug/m3) = TCR x ATc x (365 days/yr) x (24 hrs/day) / (ED x EF x ET x IUR)Cia,nc (ug/m3) = THQ x ATnc x (365 days/yr) x (24 hrs/day) x RfC x (1000 ug/mg) / (ED x EF x ET)
(4)Special Case Chemicals
Trichloroethylene Symbol Value Symbol Value Symbol ValuemIURTCE_R_GW 1.00E-06 mIURTCE_C_GW 0.00E+00 mIURTCE_GW 0.00E+00IURTCE_R_GW 3.10E-06 IURTCE_C_GW 4.10E-06 IURTCE_GW 4.10E-06
Mutagenic Chemicals The exposure durations and age-dependent adjustment factors for mutagenic-mode-of-action are listed in the table below:
0 - 2 years 2
2 - 6 years 4
6 - 16 years 10
16 - 26 years 10
Mutagenic-mode-of-action (MMOA) adjustment factor This factor is used in the equations for mutagenic chemicals.
Vinyl Chloride See the Navigation Guide equation for Cia,c for vinyl chloride.
Notation:
I = IRIS: EPA Integrated Risk Information System (IRIS). Available online at: http://www.epa.gov/iris/subst/index.htmlP = PPRTV. EPA Provisional Peer Reviewed Toxicity Values (PPRTVs). Available online at:http://hhpprtv.ornl.gov/pprtv.shtmlA = Agency for Toxic Substances and Disease Registry (ATSDR) Minimum Risk Levels (MRLs). Available online at:http://www.atsdr.cdc.gov/mrls/index.htmlCA = California Environmental Protection Agency/Office of Environmental Health Hazard Assessment assessments. Available online at:http://www.oehha.ca.gov/risk/ChemicalDB/index.aspH = HEAST. EPA Superfund Health Effects Assessment Summary Tables (HEAST) database. Available online at: http://epa-heast.ornl.gov/heast.shtmlS = See RSL User Guide, Section 5X = PPRTV AppendixMut = Chemical acts according to the mutagenic-mode-of-action, special exposure parameters apply (see footnote (4) above).VC = Special exposure equation for vinyl chloride applies (see Navigation Guide for equation).TCE = Special mutagenic and non-mutagenic IURs for trichloroethylene apply (see footnote (4) above).Yellow highlighting indicates site-specific parameters that may be edited by the user.Blue highlighting indicates exposure factors that are based on Risk Assessment Guidance for Superfund (RAGS) or EPA vapor intrusion guidance, which generally should not be changed. Pink highlighting indicates VI carcinogenic risk greater than the target risk for carcinogens (TCR) or VI Hazard greater than or equal to the target hazard quotient for non-carcinogens (THQ).
Mutagenic
Indicator
CR HQ
Note: This section applies to trichloroethylene and other mutagenic
chemicals, but not to vinyl chloride.
Age Cohort Exposure
Duration
Age-dependent adjustment
factor
10
3
Enter target risk for carcinogens (for comparison to the calculated VI carcinogenic risk in column F)
Enter target hazard quotient for non-carcinogens (for comparison to the calculated VI hazard in column G)
31
25
Selected (based on
scenario)
Selected (based on
scenario)
Selected (based on
scenario)
Residential Commercial
Residential Commercial
Residential Commercial
RFC
Source*
IUR
Source*
VISL Calculator Version 3.3.1, May 2014 RSLs - Groundwater to Indoor Air Worksheet Page 1 of 1

APPENDIX A
LABORATORY ANALYTICAL RESULTS AND
CHAIN-OF-CUSTODY FORMS

SHEALY ENVIRONMENTAL SERVICES, INC.
Report of Analysis
Terracon Consultants, Inc.
2401 Brentwood Road
Suite 107 I
Raleigh, NC 27604
Attention: Thomas Perdue
PH14008Lot Number:
70149641Project Number:
Caraway GroceryProject Name:
08/25/2014Date Completed:
Nisreen Saikaly
Project Manager
*PH14008*

This report shall not be reproduced, except in its entirety, without the written approval of Shealy Environmental Services, Inc.
The following non-paginated documents are considered part of this report: Chain of Custody Record and Sample Receipt Checklist.
Page: 1 of 30
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.
Level 1 Report v2.1

SHEALY ENVIRONMENTAL SERVICES, INC.
Case Narrative
Terracon Consultants, Inc.
Lot Number: PH14008
SC DHEC No: 32010 NC Field Parameters No: 5639 NELAC No: E87653 NC DENR No: 329
This Report of Analysis contains the analytical result(s) for the sample(s) listed on the Sample Summary following this Case Narrative. The sample
receiving date is documented in the header information associated with each sample.
All results listed in this report relate only to the samples that are contained within this report.
Sample receipt, sample analysis, and data review have been performed in accordance with the most current approved NELAC standards, the
Shealy Environmental Services, Inc. ("Shealy") Quality Assurance Management Plan (QAMP), standard operating procedures (SOPs), and Shealy
policies. Any exceptions to the NELAC standards, the QAMP, SOPs or policies are qualified on the results page or discussed below.
If you have any questions regarding this report please contact the Shealy Project Manager listed on the cover page.
Page: 2 of 30
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.
Level 1 Report v2.1
SHEALY ENVIRONMENTAL SERVICES, INC.
Sample Summary
Terracon Consultants, Inc.
Lot Number: PH14008

Sample Number Sample ID Matrix Date Sampled Date Received
001 08/12/2014 1431MW-5 Aqueous 08/14/2014
002 08/12/2014 1534MW-1A Aqueous 08/14/2014
003 08/12/2014 1625MW-4 Aqueous 08/14/2014
004 08/12/2014 1723MW-3 Aqueous 08/14/2014
005 08/12/2014 2039MW-14 Aqueous 08/14/2014
006 08/12/2014 2137MW-9 Aqueous 08/14/2014
007 08/12/2014 2224MW-12 Aqueous 08/14/2014
(7 samples)
Page: 3 of 30
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.
Level 1 Report v2.1
SHEALY ENVIRONMENTAL SERVICES, INC.
Executive Summary
Terracon Consultants, Inc.
Lot Number: PH14008

Sample Sample ID Matrix Parameter Method Result Q Units Page
001 MW-5 Aqueous Benzene SM 6200B-810 ug/L 6
001 MW-5 Aqueous sec-Butylbenzene SM 6200B-13 J ug/L 6
001 MW-5 Aqueous Ethylbenzene SM 6200B-800 ug/L 6
001 MW-5 Aqueous Isopropylbenzene (Cumene)SM 6200B-85 ug/L 6
001 MW-5 Aqueous Naphthalene SM 6200B-130 ug/L 6
001 MW-5 Aqueous n-Propylbenzene SM 6200B-140 ug/L 6
001 MW-5 Aqueous Toluene SM 6200B-1400 ug/L 7
001 MW-5 Aqueous 1,3,5-Trimethylbenzene (Mesitylene)SM 6200B-160 ug/L 7
001 MW-5 Aqueous 1,2,4-Trimethylbenzene SM 6200B-570 ug/L 7
001 MW-5 Aqueous m+p - Xylenes SM 6200B-2100 ug/L 7
001 MW-5 Aqueous o - Xylenes SM 6200B-860 ug/L 7
002 MW-1A Aqueous Benzene SM 6200B-4300 ug/L 8
002 MW-1A Aqueous n-Butylbenzene SM 6200B-37 ug/L 8
002 MW-1A Aqueous sec-Butylbenzene SM 6200B-16 J ug/L 8
002 MW-1A Aqueous Diisopropyl ether (IPE)SM 6200B-30 ug/L 8
002 MW-1A Aqueous Ethylbenzene SM 6200B-1800 ug/L 8
002 MW-1A Aqueous Isopropylbenzene (Cumene)SM 6200B-120 ug/L 8
002 MW-1A Aqueous Methyl tertiary butyl ether (MTBE)SM 6200B-61 ug/L 8
002 MW-1A Aqueous Naphthalene SM 6200B-180 ug/L 8
002 MW-1A Aqueous Toluene SM 6200B-1500 ug/L 9
002 MW-1A Aqueous 1,3,5-Trimethylbenzene (Mesitylene)SM 6200B-360 ug/L 9
002 MW-1A Aqueous 1,2,4-Trimethylbenzene SM 6200B-1100 ug/L 9
002 MW-1A Aqueous m+p - Xylenes SM 6200B-3700 ug/L 9
002 MW-1A Aqueous o - Xylenes SM 6200B-890 ug/L 9
003 MW-4 Aqueous Benzene SM 6200B-5200 ug/L 10
003 MW-4 Aqueous sec-Butylbenzene SM 6200B-16 J ug/L 10
003 MW-4 Aqueous Diisopropyl ether (IPE)SM 6200B-60 ug/L 10
003 MW-4 Aqueous Ethylbenzene SM 6200B-1700 ug/L 10
003 MW-4 Aqueous Isopropylbenzene (Cumene)SM 6200B-110 ug/L 10
003 MW-4 Aqueous Methyl tertiary butyl ether (MTBE)SM 6200B-320 ug/L 10
003 MW-4 Aqueous Naphthalene SM 6200B-230 ug/L 10
003 MW-4 Aqueous n-Propylbenzene SM 6200B-260 ug/L 10
003 MW-4 Aqueous Toluene SM 6200B-2500 ug/L 11
003 MW-4 Aqueous 1,3,5-Trimethylbenzene (Mesitylene)SM 6200B-390 ug/L 11
003 MW-4 Aqueous 1,2,4-Trimethylbenzene SM 6200B-1200 ug/L 11
003 MW-4 Aqueous m+p - Xylenes SM 6200B-3500 ug/L 11
003 MW-4 Aqueous o - Xylenes SM 6200B-1200 ug/L 11
004 MW-3 Aqueous Benzene SM 6200B-160 ug/L 12
004 MW-3 Aqueous n-Butylbenzene SM 6200B-6.6 ug/L 12
004 MW-3 Aqueous sec-Butylbenzene SM 6200B-9.3 ug/L 12
004 MW-3 Aqueous tert-Butylbenzene SM 6200B-3.5 ug/L 12
004 MW-3 Aqueous Chloroethane SM 6200B-0.58 ug/L 12
004 MW-3 Aqueous Chloroform SM 6200B-1.8 ug/L 12
004 MW-3 Aqueous 1,2-Dichloroethane SM 6200B-12 ug/L 12
004 MW-3 Aqueous Diisopropyl ether (IPE)SM 6200B-10 ug/L 12
Page: 4 of 30
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.
Level 1 Report v2.1
Executive Summary (Continued)
Lot Number: PH14008
Sample Sample ID Matrix Parameter Method Result Q Units Page
004 MW-3 Aqueous Ethylbenzene SM 6200B-30 ug/L 12
004 MW-3 Aqueous Isopropylbenzene (Cumene)SM 6200B-9.6 ug/L 12
004 MW-3 Aqueous p-Isopropyltoluene (p-Cymene)SM 6200B-1.9 ug/L 12
004 MW-3 Aqueous Methyl tertiary butyl ether (MTBE)SM 6200B-7.1 ug/L 12
004 MW-3 Aqueous Naphthalene SM 6200B-23 ug/L 12
004 MW-3 Aqueous n-Propylbenzene SM 6200B-15 ug/L 12
004 MW-3 Aqueous Toluene SM 6200B-4.2 ug/L 13
004 MW-3 Aqueous 1,2,4-Trimethylbenzene SM 6200B-9.7 ug/L 13
004 MW-3 Aqueous m+p - Xylenes SM 6200B-6.9 ug/L 13
004 MW-3 Aqueous o - Xylenes SM 6200B-1.9 ug/L 13
005 MW-14 Aqueous Benzene SM 6200B-0.27 J ug/L 14
005 MW-14 Aqueous Naphthalene SM 6200B-0.21 J ug/L 14
005 MW-14 Aqueous Toluene SM 6200B-0.53 ug/L 15
005 MW-14 Aqueous m+p - Xylenes SM 6200B-0.29 J ug/L 15
006 MW-9 Aqueous Benzene SM 6200B-2.0 ug/L 16
006 MW-9 Aqueous sec-Butylbenzene SM 6200B-1.4 ug/L 16
006 MW-9 Aqueous 1,2-Dichloroethane SM 6200B-1.3 ug/L 16
006 MW-9 Aqueous Diisopropyl ether (IPE)SM 6200B-0.59 ug/L 16
006 MW-9 Aqueous Ethylbenzene SM 6200B-0.31 J ug/L 16
006 MW-9 Aqueous Isopropylbenzene (Cumene)SM 6200B-0.69 ug/L 16
006 MW-9 Aqueous Methyl tertiary butyl ether (MTBE)SM 6200B-1.4 ug/L 16
006 MW-9 Aqueous Toluene SM 6200B-0.18 J ug/L 17
006 MW-9 Aqueous m+p - Xylenes SM 6200B-0.45 J ug/L 17
007 MW-12 Aqueous Benzene SM 6200B-7800 ug/L 18
007 MW-12 Aqueous sec-Butylbenzene SM 6200B-21 J ug/L 18
007 MW-12 Aqueous Diisopropyl ether (IPE)SM 6200B-46 ug/L 18
007 MW-12 Aqueous Ethylbenzene SM 6200B-2900 ug/L 18
007 MW-12 Aqueous Isopropylbenzene (Cumene)SM 6200B-160 ug/L 18
007 MW-12 Aqueous Methyl tertiary butyl ether (MTBE)SM 6200B-99 ug/L 18
007 MW-12 Aqueous Naphthalene SM 6200B-330 ug/L 18
007 MW-12 Aqueous n-Propylbenzene SM 6200B-360 ug/L 18
007 MW-12 Aqueous Toluene SM 6200B-3600 ug/L 19
007 MW-12 Aqueous 1,3,5-Trimethylbenzene (Mesitylene)SM 6200B-640 ug/L 19
007 MW-12 Aqueous 1,2,4-Trimethylbenzene SM 6200B-2200 ug/L 19
007 MW-12 Aqueous m+p - Xylenes SM 6200B-6000 ug/L 19
007 MW-12 Aqueous o - Xylenes SM 6200B-2700 ug/L 19
(81 detections)
Page: 5 of 30
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.
Level 1 Report v2.1
Volatile Organic Compounds by GC/MS
Description:Matrix:
Date Received:
Client:Laboratory ID:
Date Sampled:
Terracon Consultants, Inc.
MW-5
PH14008-001
08/12/2014 1431
08/14/2014
Aqueous
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 SM 6200B-SM 6200B-2011 50 08/21/2014 1921 EH1 54542
AnalyticalCAS
Parameter Number Method Result Q PQL Units RunMDL
Benzene 71-43-2 SM 6200B-20 810 1ug/L1.425
Bromobenzene 108-86-1 SM 6200B-20 ND 1ug/L1.425
Bromochloromethane 74-97-5 SM 6200B-20 ND 1ug/L2.825
Bromodichloromethane 75-27-4 SM 6200B-20 ND 1ug/L8.525
Bromoform 75-25-2 SM 6200B-20 ND 1ug/L0.5125
Bromomethane (Methyl bromide)74-83-9 SM 6200B-20 ND 1ug/L1025
n-Butylbenzene 104-51-8 SM 6200B-20 ND 1ug/L0.8425
sec-Butylbenzene 135-98-8 SM 6200B-20 13 J 1ug/L0.5225
tert-Butylbenzene 98-06-6 SM 6200B-20 ND 1ug/L1.925
Carbon tetrachloride 56-23-5 SM 6200B-20 ND 1ug/L4.325
Chlorobenzene 108-90-7 SM 6200B-20 ND 1ug/L8.525
Chloroethane 75-00-3 SM 6200B-20 ND 1ug/L8.525
Chloroform 67-66-3 SM 6200B-20 ND 1ug/L8.525
Chloromethane (Methyl chloride)74-87-3 SM 6200B-20 ND 1ug/L8.725
2-Chlorotoluene 95-49-8 SM 6200B-20 ND 1ug/L3.025
4-Chlorotoluene 106-43-4 SM 6200B-20 ND 1ug/L0.9525
Dibromochloromethane 124-48-1 SM 6200B-20 ND 1ug/L8.525
1,2-Dibromoethane (EDB)106-93-4 SM 6200B-20 ND 1ug/L3.125
Dibromomethane (Methylene bromide)74-95-3 SM 6200B-20 ND 1ug/L4.725
1,2-Dichlorobenzene 95-50-1 SM 6200B-20 ND 1ug/L8.525
1,3-Dichlorobenzene 541-73-1 SM 6200B-20 ND 1ug/L8.525
1,4-Dichlorobenzene 106-46-7 SM 6200B-20 ND 1ug/L8.525
Dichlorodifluoromethane 75-71-8 SM 6200B-20 ND 1ug/L3.525
1,1-Dichloroethane 75-34-3 SM 6200B-20 ND 1ug/L2.725
1,2-Dichloroethane 107-06-2 SM 6200B-20 ND 1ug/L1.225
1,1-Dichloroethene 75-35-4 SM 6200B-20 ND 1ug/L4.725
cis-1,2-Dichloroethene 156-59-2 SM 6200B-20 ND 1ug/L4.425
trans-1,2-Dichloroethene 156-60-5 SM 6200B-20 ND 1ug/L4.025
1,2-Dichloropropane 78-87-5 SM 6200B-20 ND 1ug/L4.125
1,3-Dichloropropane 142-28-9 SM 6200B-20 ND 1ug/L0.9525
2,2-Dichloropropane 594-20-7 SM 6200B-20 ND 1ug/L3.025
1,1-Dichloropropene 563-58-6 SM 6200B-20 ND 1ug/L3.725
cis-1,3-Dichloropropene 10061-01-5 SM 6200B-20 ND 1ug/L4.525
trans-1,3-Dichloropropene 10061-02-6 SM 6200B-20 ND 1ug/L9.025
Diisopropyl ether (IPE)108-20-3 SM 6200B-20 ND 1ug/L2.625
Ethylbenzene 100-41-4 SM 6200B-20 800 1ug/L8.525
Hexachlorobutadiene 87-68-3 SM 6200B-20 ND 1ug/L8.525
Isopropylbenzene (Cumene)98-82-8 SM 6200B-20 85 1ug/L1.425
p-Isopropyltoluene (p-Cymene)99-87-6 SM 6200B-20 ND 1ug/L0.8925
Methyl tertiary butyl ether (MTBE)1634-04-4 SM 6200B-20 ND 1ug/L0.9525
Methylene chloride 75-09-2 SM 6200B-20 ND 1ug/L8.525
Naphthalene 91-20-3 SM 6200B-20 130 1ug/L8.525
n-Propylbenzene 103-65-1 SM 6200B-20 140 1ug/L1.225
Styrene 100-42-5 SM 6200B-20 ND 1ug/L0.7525
J = Estimated result < PQL and > MDL
PQL = Practical quantitation limit B = Detected in the method blank E = Quantitation of compound exceeded the calibration range
P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the MDL
Where applicable, all soil sample analysis are reported on a dry weight basis unless flagged with a "W"
N = Recovery is out of criteria_
H = Out of holding time
Page: 6 of 30
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.
Level 1 Report v2.1
Volatile Organic Compounds by GC/MS
Description:Matrix:
Date Received:
Client:Laboratory ID:
Date Sampled:
Terracon Consultants, Inc.
MW-5
PH14008-001
08/12/2014 1431
08/14/2014
Aqueous
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 SM 6200B-SM 6200B-2011 50 08/21/2014 1921 EH1 54542
AnalyticalCAS
Parameter Number Method Result Q PQL Units RunMDL
1,1,1,2-Tetrachloroethane 630-20-6 SM 6200B-20 ND 1ug/L2.925
1,1,2,2-Tetrachloroethane 79-34-5 SM 6200B-20 ND 1ug/L0.6525
Tetrachloroethene 127-18-4 SM 6200B-20 ND 1ug/L0.7225
Toluene 108-88-3 SM 6200B-20 1400 1ug/L8.525
1,1,2-Trichloro-1,2,2-Trifluoroethane 76-13-1 SM 6200B-20 ND 1ug/L1525
1,2,3-Trichlorobenzene 87-61-6 SM 6200B-20 ND 1ug/L8.525
1,2,4-Trichlorobenzene 120-82-1 SM 6200B-20 ND 1ug/L8.525
1,1,1-Trichloroethane 71-55-6 SM 6200B-20 ND 1ug/L1.425
1,1,2-Trichloroethane 79-00-5 SM 6200B-20 ND 1ug/L1.625
Trichloroethene 79-01-6 SM 6200B-20 ND 1ug/L1.225
Trichlorofluoromethane 75-69-4 SM 6200B-20 ND 1ug/L2.525
1,2,3-Trichloropropane 96-18-4 SM 6200B-20 ND 1ug/L1725
1,3,5-Trimethylbenzene (Mesitylene)108-67-8 SM 6200B-20 160 1ug/L8.525
1,2,4-Trimethylbenzene 95-63-6 SM 6200B-20 570 1ug/L8.525
Vinyl chloride 75-01-4 SM 6200B-20 ND 1ug/L3.325
m+p - Xylenes 179601-23-1 SM 6200B-20 2100 1ug/L8.525
o - Xylenes 95-47-6 SM 6200B-20 860 1ug/L8.525
AcceptanceRun 1
Surrogate Q % Recovery Limits
1,2-Dichloroethane-d4 101 70-130
Bromofluorobenzene 96 70-130
Toluene-d8 100 70-130
J = Estimated result < PQL and > MDL
PQL = Practical quantitation limit B = Detected in the method blank E = Quantitation of compound exceeded the calibration range
P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the MDL
Where applicable, all soil sample analysis are reported on a dry weight basis unless flagged with a "W"
N = Recovery is out of criteria_
H = Out of holding time
Page: 7 of 30
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.
Level 1 Report v2.1
Volatile Organic Compounds by GC/MS
Description:Matrix:
Date Received:
Client:Laboratory ID:
Date Sampled:
Terracon Consultants, Inc.
MW-1A
PH14008-002
08/12/2014 1534
08/14/2014
Aqueous
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 SM 6200B-SM 6200B-2011 50 08/21/2014 1944 EH1 54542
AnalyticalCAS
Parameter Number Method Result Q PQL Units RunMDL
Benzene 71-43-2 SM 6200B-20 4300 1ug/L1.425
Bromobenzene 108-86-1 SM 6200B-20 ND 1ug/L1.425
Bromochloromethane 74-97-5 SM 6200B-20 ND 1ug/L2.825
Bromodichloromethane 75-27-4 SM 6200B-20 ND 1ug/L8.525
Bromoform 75-25-2 SM 6200B-20 ND 1ug/L0.5125
Bromomethane (Methyl bromide)74-83-9 SM 6200B-20 ND 1ug/L1025
n-Butylbenzene 104-51-8 SM 6200B-20 37 1ug/L0.8425
sec-Butylbenzene 135-98-8 SM 6200B-20 16 J 1ug/L0.5225
tert-Butylbenzene 98-06-6 SM 6200B-20 ND 1ug/L1.925
Carbon tetrachloride 56-23-5 SM 6200B-20 ND 1ug/L4.325
Chlorobenzene 108-90-7 SM 6200B-20 ND 1ug/L8.525
Chloroethane 75-00-3 SM 6200B-20 ND 1ug/L8.525
Chloroform 67-66-3 SM 6200B-20 ND 1ug/L8.525
Chloromethane (Methyl chloride)74-87-3 SM 6200B-20 ND 1ug/L8.725
2-Chlorotoluene 95-49-8 SM 6200B-20 ND 1ug/L3.025
4-Chlorotoluene 106-43-4 SM 6200B-20 ND 1ug/L0.9525
Dibromochloromethane 124-48-1 SM 6200B-20 ND 1ug/L8.525
1,2-Dibromoethane (EDB)106-93-4 SM 6200B-20 ND 1ug/L3.125
Dibromomethane (Methylene bromide)74-95-3 SM 6200B-20 ND 1ug/L4.725
1,2-Dichlorobenzene 95-50-1 SM 6200B-20 ND 1ug/L8.525
1,3-Dichlorobenzene 541-73-1 SM 6200B-20 ND 1ug/L8.525
1,4-Dichlorobenzene 106-46-7 SM 6200B-20 ND 1ug/L8.525
Dichlorodifluoromethane 75-71-8 SM 6200B-20 ND 1ug/L3.525
1,1-Dichloroethane 75-34-3 SM 6200B-20 ND 1ug/L2.725
1,2-Dichloroethane 107-06-2 SM 6200B-20 ND 1ug/L1.225
1,1-Dichloroethene 75-35-4 SM 6200B-20 ND 1ug/L4.725
cis-1,2-Dichloroethene 156-59-2 SM 6200B-20 ND 1ug/L4.425
trans-1,2-Dichloroethene 156-60-5 SM 6200B-20 ND 1ug/L4.025
1,2-Dichloropropane 78-87-5 SM 6200B-20 ND 1ug/L4.125
1,3-Dichloropropane 142-28-9 SM 6200B-20 ND 1ug/L0.9525
2,2-Dichloropropane 594-20-7 SM 6200B-20 ND 1ug/L3.025
1,1-Dichloropropene 563-58-6 SM 6200B-20 ND 1ug/L3.725
cis-1,3-Dichloropropene 10061-01-5 SM 6200B-20 ND 1ug/L4.525
trans-1,3-Dichloropropene 10061-02-6 SM 6200B-20 ND 1ug/L9.025
Diisopropyl ether (IPE)108-20-3 SM 6200B-20 30 1ug/L2.625
Ethylbenzene 100-41-4 SM 6200B-20 1800 1ug/L8.525
Hexachlorobutadiene 87-68-3 SM 6200B-20 ND 1ug/L8.525
Isopropylbenzene (Cumene)98-82-8 SM 6200B-20 120 1ug/L1.425
p-Isopropyltoluene (p-Cymene)99-87-6 SM 6200B-20 ND 1ug/L0.8925
Methyl tertiary butyl ether (MTBE)1634-04-4 SM 6200B-20 61 1ug/L0.9525
Methylene chloride 75-09-2 SM 6200B-20 ND 1ug/L8.525
Naphthalene 91-20-3 SM 6200B-20 180 1ug/L8.525
n-Propylbenzene 103-65-1 SM 6200B-20 ND 1ug/L1.225
Styrene 100-42-5 SM 6200B-20 ND 1ug/L0.7525
J = Estimated result < PQL and > MDL
PQL = Practical quantitation limit B = Detected in the method blank E = Quantitation of compound exceeded the calibration range
P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the MDL
Where applicable, all soil sample analysis are reported on a dry weight basis unless flagged with a "W"
N = Recovery is out of criteria_
H = Out of holding time
Page: 8 of 30
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.
Level 1 Report v2.1
Volatile Organic Compounds by GC/MS
Description:Matrix:
Date Received:
Client:Laboratory ID:
Date Sampled:
Terracon Consultants, Inc.
MW-1A
PH14008-002
08/12/2014 1534
08/14/2014
Aqueous
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 SM 6200B-SM 6200B-2011 50 08/21/2014 1944 EH1 54542
AnalyticalCAS
Parameter Number Method Result Q PQL Units RunMDL
1,1,1,2-Tetrachloroethane 630-20-6 SM 6200B-20 ND 1ug/L2.925
1,1,2,2-Tetrachloroethane 79-34-5 SM 6200B-20 ND 1ug/L0.6525
Tetrachloroethene 127-18-4 SM 6200B-20 ND 1ug/L0.7225
Toluene 108-88-3 SM 6200B-20 1500 1ug/L8.525
1,1,2-Trichloro-1,2,2-Trifluoroethane 76-13-1 SM 6200B-20 ND 1ug/L1525
1,2,3-Trichlorobenzene 87-61-6 SM 6200B-20 ND 1ug/L8.525
1,2,4-Trichlorobenzene 120-82-1 SM 6200B-20 ND 1ug/L8.525
1,1,1-Trichloroethane 71-55-6 SM 6200B-20 ND 1ug/L1.425
1,1,2-Trichloroethane 79-00-5 SM 6200B-20 ND 1ug/L1.625
Trichloroethene 79-01-6 SM 6200B-20 ND 1ug/L1.225
Trichlorofluoromethane 75-69-4 SM 6200B-20 ND 1ug/L2.525
1,2,3-Trichloropropane 96-18-4 SM 6200B-20 ND 1ug/L1725
1,3,5-Trimethylbenzene (Mesitylene)108-67-8 SM 6200B-20 360 1ug/L8.525
1,2,4-Trimethylbenzene 95-63-6 SM 6200B-20 1100 1ug/L8.525
Vinyl chloride 75-01-4 SM 6200B-20 ND 1ug/L3.325
m+p - Xylenes 179601-23-1 SM 6200B-20 3700 1ug/L8.525
o - Xylenes 95-47-6 SM 6200B-20 890 1ug/L8.525
AcceptanceRun 1
Surrogate Q % Recovery Limits
1,2-Dichloroethane-d4 102 70-130
Bromofluorobenzene 97 70-130
Toluene-d8 102 70-130
J = Estimated result < PQL and > MDL
PQL = Practical quantitation limit B = Detected in the method blank E = Quantitation of compound exceeded the calibration range
P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the MDL
Where applicable, all soil sample analysis are reported on a dry weight basis unless flagged with a "W"
N = Recovery is out of criteria_
H = Out of holding time
Page: 9 of 30
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.
Level 1 Report v2.1
Volatile Organic Compounds by GC/MS
Description:Matrix:
Date Received:
Client:Laboratory ID:
Date Sampled:
Terracon Consultants, Inc.
MW-4
PH14008-003
08/12/2014 1625
08/14/2014
Aqueous
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 SM 6200B-SM 6200B-2011 50 08/21/2014 2008 EH1 54542
AnalyticalCAS
Parameter Number Method Result Q PQL Units RunMDL
Benzene 71-43-2 SM 6200B-20 5200 1ug/L1.425
Bromobenzene 108-86-1 SM 6200B-20 ND 1ug/L1.425
Bromochloromethane 74-97-5 SM 6200B-20 ND 1ug/L2.825
Bromodichloromethane 75-27-4 SM 6200B-20 ND 1ug/L8.525
Bromoform 75-25-2 SM 6200B-20 ND 1ug/L0.5125
Bromomethane (Methyl bromide)74-83-9 SM 6200B-20 ND 1ug/L1025
n-Butylbenzene 104-51-8 SM 6200B-20 ND 1ug/L0.8425
sec-Butylbenzene 135-98-8 SM 6200B-20 16 J 1ug/L0.5225
tert-Butylbenzene 98-06-6 SM 6200B-20 ND 1ug/L1.925
Carbon tetrachloride 56-23-5 SM 6200B-20 ND 1ug/L4.325
Chlorobenzene 108-90-7 SM 6200B-20 ND 1ug/L8.525
Chloroethane 75-00-3 SM 6200B-20 ND 1ug/L8.525
Chloroform 67-66-3 SM 6200B-20 ND 1ug/L8.525
Chloromethane (Methyl chloride)74-87-3 SM 6200B-20 ND 1ug/L8.725
2-Chlorotoluene 95-49-8 SM 6200B-20 ND 1ug/L3.025
4-Chlorotoluene 106-43-4 SM 6200B-20 ND 1ug/L0.9525
Dibromochloromethane 124-48-1 SM 6200B-20 ND 1ug/L8.525
1,2-Dibromoethane (EDB)106-93-4 SM 6200B-20 ND 1ug/L3.125
Dibromomethane (Methylene bromide)74-95-3 SM 6200B-20 ND 1ug/L4.725
1,2-Dichlorobenzene 95-50-1 SM 6200B-20 ND 1ug/L8.525
1,3-Dichlorobenzene 541-73-1 SM 6200B-20 ND 1ug/L8.525
1,4-Dichlorobenzene 106-46-7 SM 6200B-20 ND 1ug/L8.525
Dichlorodifluoromethane 75-71-8 SM 6200B-20 ND 1ug/L3.525
1,1-Dichloroethane 75-34-3 SM 6200B-20 ND 1ug/L2.725
1,2-Dichloroethane 107-06-2 SM 6200B-20 ND 1ug/L1.225
1,1-Dichloroethene 75-35-4 SM 6200B-20 ND 1ug/L4.725
cis-1,2-Dichloroethene 156-59-2 SM 6200B-20 ND 1ug/L4.425
trans-1,2-Dichloroethene 156-60-5 SM 6200B-20 ND 1ug/L4.025
1,2-Dichloropropane 78-87-5 SM 6200B-20 ND 1ug/L4.125
1,3-Dichloropropane 142-28-9 SM 6200B-20 ND 1ug/L0.9525
2,2-Dichloropropane 594-20-7 SM 6200B-20 ND 1ug/L3.025
1,1-Dichloropropene 563-58-6 SM 6200B-20 ND 1ug/L3.725
cis-1,3-Dichloropropene 10061-01-5 SM 6200B-20 ND 1ug/L4.525
trans-1,3-Dichloropropene 10061-02-6 SM 6200B-20 ND 1ug/L9.025
Diisopropyl ether (IPE)108-20-3 SM 6200B-20 60 1ug/L2.625
Ethylbenzene 100-41-4 SM 6200B-20 1700 1ug/L8.525
Hexachlorobutadiene 87-68-3 SM 6200B-20 ND 1ug/L8.525
Isopropylbenzene (Cumene)98-82-8 SM 6200B-20 110 1ug/L1.425
p-Isopropyltoluene (p-Cymene)99-87-6 SM 6200B-20 ND 1ug/L0.8925
Methyl tertiary butyl ether (MTBE)1634-04-4 SM 6200B-20 320 1ug/L0.9525
Methylene chloride 75-09-2 SM 6200B-20 ND 1ug/L8.525
Naphthalene 91-20-3 SM 6200B-20 230 1ug/L8.525
n-Propylbenzene 103-65-1 SM 6200B-20 260 1ug/L1.225
Styrene 100-42-5 SM 6200B-20 ND 1ug/L0.7525
J = Estimated result < PQL and > MDL
PQL = Practical quantitation limit B = Detected in the method blank E = Quantitation of compound exceeded the calibration range
P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the MDL
Where applicable, all soil sample analysis are reported on a dry weight basis unless flagged with a "W"
N = Recovery is out of criteria_
H = Out of holding time
Page: 10 of 30
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.
Level 1 Report v2.1
Volatile Organic Compounds by GC/MS
Description:Matrix:
Date Received:
Client:Laboratory ID:
Date Sampled:
Terracon Consultants, Inc.
MW-4
PH14008-003
08/12/2014 1625
08/14/2014
Aqueous
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 SM 6200B-SM 6200B-2011 50 08/21/2014 2008 EH1 54542
AnalyticalCAS
Parameter Number Method Result Q PQL Units RunMDL
1,1,1,2-Tetrachloroethane 630-20-6 SM 6200B-20 ND 1ug/L2.925
1,1,2,2-Tetrachloroethane 79-34-5 SM 6200B-20 ND 1ug/L0.6525
Tetrachloroethene 127-18-4 SM 6200B-20 ND 1ug/L0.7225
Toluene 108-88-3 SM 6200B-20 2500 1ug/L8.525
1,1,2-Trichloro-1,2,2-Trifluoroethane 76-13-1 SM 6200B-20 ND 1ug/L1525
1,2,3-Trichlorobenzene 87-61-6 SM 6200B-20 ND 1ug/L8.525
1,2,4-Trichlorobenzene 120-82-1 SM 6200B-20 ND 1ug/L8.525
1,1,1-Trichloroethane 71-55-6 SM 6200B-20 ND 1ug/L1.425
1,1,2-Trichloroethane 79-00-5 SM 6200B-20 ND 1ug/L1.625
Trichloroethene 79-01-6 SM 6200B-20 ND 1ug/L1.225
Trichlorofluoromethane 75-69-4 SM 6200B-20 ND 1ug/L2.525
1,2,3-Trichloropropane 96-18-4 SM 6200B-20 ND 1ug/L1725
1,3,5-Trimethylbenzene (Mesitylene)108-67-8 SM 6200B-20 390 1ug/L8.525
1,2,4-Trimethylbenzene 95-63-6 SM 6200B-20 1200 1ug/L8.525
Vinyl chloride 75-01-4 SM 6200B-20 ND 1ug/L3.325
m+p - Xylenes 179601-23-1 SM 6200B-20 3500 1ug/L8.525
o - Xylenes 95-47-6 SM 6200B-20 1200 1ug/L8.525
AcceptanceRun 1
Surrogate Q % Recovery Limits
1,2-Dichloroethane-d4 102 70-130
Bromofluorobenzene 96 70-130
Toluene-d8 102 70-130
J = Estimated result < PQL and > MDL
PQL = Practical quantitation limit B = Detected in the method blank E = Quantitation of compound exceeded the calibration range
P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the MDL
Where applicable, all soil sample analysis are reported on a dry weight basis unless flagged with a "W"
N = Recovery is out of criteria_
H = Out of holding time
Page: 11 of 30
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.
Level 1 Report v2.1
Volatile Organic Compounds by GC/MS
Description:Matrix:
Date Received:
Client:Laboratory ID:
Date Sampled:
Terracon Consultants, Inc.
MW-3
PH14008-004
08/12/2014 1723
08/14/2014
Aqueous
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 SM 6200B-SM 6200B-2011 1 08/21/2014 1504 EH1 54542
AnalyticalCAS
Parameter Number Method Result Q PQL Units RunMDL
Benzene 71-43-2 SM 6200B-20 160 1ug/L0.0270.50
Bromobenzene 108-86-1 SM 6200B-20 ND 1ug/L0.0270.50
Bromochloromethane 74-97-5 SM 6200B-20 ND 1ug/L0.0550.50
Bromodichloromethane 75-27-4 SM 6200B-20 ND 1ug/L0.170.50
Bromoform 75-25-2 SM 6200B-20 ND 1ug/L0.0100.50
Bromomethane (Methyl bromide)74-83-9 SM 6200B-20 ND 1ug/L0.200.50
n-Butylbenzene 104-51-8 SM 6200B-20 6.6 1ug/L0.0170.50
sec-Butylbenzene 135-98-8 SM 6200B-20 9.3 1ug/L0.0100.50
tert-Butylbenzene 98-06-6 SM 6200B-20 3.5 1ug/L0.0370.50
Carbon tetrachloride 56-23-5 SM 6200B-20 ND 1ug/L0.0850.50
Chlorobenzene 108-90-7 SM 6200B-20 ND 1ug/L0.170.50
Chloroethane 75-00-3 SM 6200B-20 0.58 1ug/L0.170.50
Chloroform 67-66-3 SM 6200B-20 1.8 1ug/L0.170.50
Chloromethane (Methyl chloride)74-87-3 SM 6200B-20 ND 1ug/L0.170.50
2-Chlorotoluene 95-49-8 SM 6200B-20 ND 1ug/L0.0590.50
4-Chlorotoluene 106-43-4 SM 6200B-20 ND 1ug/L0.0190.50
Dibromochloromethane 124-48-1 SM 6200B-20 ND 1ug/L0.170.50
1,2-Dibromoethane (EDB)106-93-4 SM 6200B-20 ND 1ug/L0.0610.50
Dibromomethane (Methylene bromide)74-95-3 SM 6200B-20 ND 1ug/L0.0940.50
1,2-Dichlorobenzene 95-50-1 SM 6200B-20 ND 1ug/L0.170.50
1,3-Dichlorobenzene 541-73-1 SM 6200B-20 ND 1ug/L0.170.50
1,4-Dichlorobenzene 106-46-7 SM 6200B-20 ND 1ug/L0.170.50
Dichlorodifluoromethane 75-71-8 SM 6200B-20 ND 1ug/L0.0710.50
1,1-Dichloroethane 75-34-3 SM 6200B-20 ND 1ug/L0.0540.50
1,2-Dichloroethane 107-06-2 SM 6200B-20 12 1ug/L0.0230.50
1,1-Dichloroethene 75-35-4 SM 6200B-20 ND 1ug/L0.0940.50
cis-1,2-Dichloroethene 156-59-2 SM 6200B-20 ND 1ug/L0.0870.50
trans-1,2-Dichloroethene 156-60-5 SM 6200B-20 ND 1ug/L0.0790.50
1,2-Dichloropropane 78-87-5 SM 6200B-20 ND 1ug/L0.0810.50
1,3-Dichloropropane 142-28-9 SM 6200B-20 ND 1ug/L0.0190.50
2,2-Dichloropropane 594-20-7 SM 6200B-20 ND 1ug/L0.0600.50
1,1-Dichloropropene 563-58-6 SM 6200B-20 ND 1ug/L0.0740.50
cis-1,3-Dichloropropene 10061-01-5 SM 6200B-20 ND 1ug/L0.0900.50
trans-1,3-Dichloropropene 10061-02-6 SM 6200B-20 ND 1ug/L0.180.50
Diisopropyl ether (IPE)108-20-3 SM 6200B-20 10 1ug/L0.0520.50
Ethylbenzene 100-41-4 SM 6200B-20 30 1ug/L0.170.50
Hexachlorobutadiene 87-68-3 SM 6200B-20 ND 1ug/L0.170.50
Isopropylbenzene (Cumene)98-82-8 SM 6200B-20 9.6 1ug/L0.0290.50
p-Isopropyltoluene (p-Cymene)99-87-6 SM 6200B-20 1.9 1ug/L0.0180.50
Methyl tertiary butyl ether (MTBE)1634-04-4 SM 6200B-20 7.1 1ug/L0.0190.50
Methylene chloride 75-09-2 SM 6200B-20 ND 1ug/L0.170.50
Naphthalene 91-20-3 SM 6200B-20 23 1ug/L0.170.50
n-Propylbenzene 103-65-1 SM 6200B-20 15 1ug/L0.0240.50
Styrene 100-42-5 SM 6200B-20 ND 1ug/L0.0150.50
J = Estimated result < PQL and > MDL
PQL = Practical quantitation limit B = Detected in the method blank E = Quantitation of compound exceeded the calibration range
P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the MDL
Where applicable, all soil sample analysis are reported on a dry weight basis unless flagged with a "W"
N = Recovery is out of criteria_
H = Out of holding time
Page: 12 of 30
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.
Level 1 Report v2.1
Volatile Organic Compounds by GC/MS
Description:Matrix:
Date Received:
Client:Laboratory ID:
Date Sampled:
Terracon Consultants, Inc.
MW-3
PH14008-004
08/12/2014 1723
08/14/2014
Aqueous
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 SM 6200B-SM 6200B-2011 1 08/21/2014 1504 EH1 54542
AnalyticalCAS
Parameter Number Method Result Q PQL Units RunMDL
1,1,1,2-Tetrachloroethane 630-20-6 SM 6200B-20 ND 1ug/L0.0570.50
1,1,2,2-Tetrachloroethane 79-34-5 SM 6200B-20 ND 1ug/L0.0130.50
Tetrachloroethene 127-18-4 SM 6200B-20 ND 1ug/L0.0140.50
Toluene 108-88-3 SM 6200B-20 4.2 1ug/L0.170.50
1,1,2-Trichloro-1,2,2-Trifluoroethane 76-13-1 SM 6200B-20 ND 1ug/L0.300.50
1,2,3-Trichlorobenzene 87-61-6 SM 6200B-20 ND 1ug/L0.170.50
1,2,4-Trichlorobenzene 120-82-1 SM 6200B-20 ND 1ug/L0.170.50
1,1,1-Trichloroethane 71-55-6 SM 6200B-20 ND 1ug/L0.0290.50
1,1,2-Trichloroethane 79-00-5 SM 6200B-20 ND 1ug/L0.0310.50
Trichloroethene 79-01-6 SM 6200B-20 ND 1ug/L0.0240.50
Trichlorofluoromethane 75-69-4 SM 6200B-20 ND 1ug/L0.0510.50
1,2,3-Trichloropropane 96-18-4 SM 6200B-20 ND 1ug/L0.330.50
1,3,5-Trimethylbenzene (Mesitylene)108-67-8 SM 6200B-20 ND 1ug/L0.170.50
1,2,4-Trimethylbenzene 95-63-6 SM 6200B-20 9.7 1ug/L0.170.50
Vinyl chloride 75-01-4 SM 6200B-20 ND 1ug/L0.0650.50
m+p - Xylenes 179601-23-1 SM 6200B-20 6.9 1ug/L0.170.50
o - Xylenes 95-47-6 SM 6200B-20 1.9 1ug/L0.170.50
AcceptanceRun 1
Surrogate Q % Recovery Limits
1,2-Dichloroethane-d4 100 70-130
Bromofluorobenzene 100 70-130
Toluene-d8 102 70-130
J = Estimated result < PQL and > MDL
PQL = Practical quantitation limit B = Detected in the method blank E = Quantitation of compound exceeded the calibration range
P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the MDL
Where applicable, all soil sample analysis are reported on a dry weight basis unless flagged with a "W"
N = Recovery is out of criteria_
H = Out of holding time
Page: 13 of 30
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.
Level 1 Report v2.1
Volatile Organic Compounds by GC/MS
Description:Matrix:
Date Received:
Client:Laboratory ID:
Date Sampled:
Terracon Consultants, Inc.
MW-14
PH14008-005
08/12/2014 2039
08/14/2014
Aqueous
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 SM 6200B-SM 6200B-2011 1 08/21/2014 1528 EH1 54542
AnalyticalCAS
Parameter Number Method Result Q PQL Units RunMDL
Benzene 71-43-2 SM 6200B-20 0.27 J 1ug/L0.0270.50
Bromobenzene 108-86-1 SM 6200B-20 ND 1ug/L0.0270.50
Bromochloromethane 74-97-5 SM 6200B-20 ND 1ug/L0.0550.50
Bromodichloromethane 75-27-4 SM 6200B-20 ND 1ug/L0.170.50
Bromoform 75-25-2 SM 6200B-20 ND 1ug/L0.0100.50
Bromomethane (Methyl bromide)74-83-9 SM 6200B-20 ND 1ug/L0.200.50
n-Butylbenzene 104-51-8 SM 6200B-20 ND 1ug/L0.0170.50
sec-Butylbenzene 135-98-8 SM 6200B-20 ND 1ug/L0.0100.50
tert-Butylbenzene 98-06-6 SM 6200B-20 ND 1ug/L0.0370.50
Carbon tetrachloride 56-23-5 SM 6200B-20 ND 1ug/L0.0850.50
Chlorobenzene 108-90-7 SM 6200B-20 ND 1ug/L0.170.50
Chloroethane 75-00-3 SM 6200B-20 ND 1ug/L0.170.50
Chloroform 67-66-3 SM 6200B-20 ND 1ug/L0.170.50
Chloromethane (Methyl chloride)74-87-3 SM 6200B-20 ND 1ug/L0.170.50
2-Chlorotoluene 95-49-8 SM 6200B-20 ND 1ug/L0.0590.50
4-Chlorotoluene 106-43-4 SM 6200B-20 ND 1ug/L0.0190.50
Dibromochloromethane 124-48-1 SM 6200B-20 ND 1ug/L0.170.50
1,2-Dibromoethane (EDB)106-93-4 SM 6200B-20 ND 1ug/L0.0610.50
Dibromomethane (Methylene bromide)74-95-3 SM 6200B-20 ND 1ug/L0.0940.50
1,2-Dichlorobenzene 95-50-1 SM 6200B-20 ND 1ug/L0.170.50
1,3-Dichlorobenzene 541-73-1 SM 6200B-20 ND 1ug/L0.170.50
1,4-Dichlorobenzene 106-46-7 SM 6200B-20 ND 1ug/L0.170.50
Dichlorodifluoromethane 75-71-8 SM 6200B-20 ND 1ug/L0.0710.50
1,1-Dichloroethane 75-34-3 SM 6200B-20 ND 1ug/L0.0540.50
1,2-Dichloroethane 107-06-2 SM 6200B-20 ND 1ug/L0.0230.50
1,1-Dichloroethene 75-35-4 SM 6200B-20 ND 1ug/L0.0940.50
cis-1,2-Dichloroethene 156-59-2 SM 6200B-20 ND 1ug/L0.0870.50
trans-1,2-Dichloroethene 156-60-5 SM 6200B-20 ND 1ug/L0.0790.50
1,2-Dichloropropane 78-87-5 SM 6200B-20 ND 1ug/L0.0810.50
1,3-Dichloropropane 142-28-9 SM 6200B-20 ND 1ug/L0.0190.50
2,2-Dichloropropane 594-20-7 SM 6200B-20 ND 1ug/L0.0600.50
1,1-Dichloropropene 563-58-6 SM 6200B-20 ND 1ug/L0.0740.50
cis-1,3-Dichloropropene 10061-01-5 SM 6200B-20 ND 1ug/L0.0900.50
trans-1,3-Dichloropropene 10061-02-6 SM 6200B-20 ND 1ug/L0.180.50
Diisopropyl ether (IPE)108-20-3 SM 6200B-20 ND 1ug/L0.0520.50
Ethylbenzene 100-41-4 SM 6200B-20 ND 1ug/L0.170.50
Hexachlorobutadiene 87-68-3 SM 6200B-20 ND 1ug/L0.170.50
Isopropylbenzene (Cumene)98-82-8 SM 6200B-20 ND 1ug/L0.0290.50
p-Isopropyltoluene (p-Cymene)99-87-6 SM 6200B-20 ND 1ug/L0.0180.50
Methyl tertiary butyl ether (MTBE)1634-04-4 SM 6200B-20 ND 1ug/L0.0190.50
Methylene chloride 75-09-2 SM 6200B-20 ND 1ug/L0.170.50
Naphthalene 91-20-3 SM 6200B-20 0.21 J 1ug/L0.170.50
n-Propylbenzene 103-65-1 SM 6200B-20 ND 1ug/L0.0240.50
Styrene 100-42-5 SM 6200B-20 ND 1ug/L0.0150.50
J = Estimated result < PQL and > MDL
PQL = Practical quantitation limit B = Detected in the method blank E = Quantitation of compound exceeded the calibration range
P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the MDL
Where applicable, all soil sample analysis are reported on a dry weight basis unless flagged with a "W"
N = Recovery is out of criteria_
H = Out of holding time
Page: 14 of 30
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.
Level 1 Report v2.1
Volatile Organic Compounds by GC/MS
Description:Matrix:
Date Received:
Client:Laboratory ID:
Date Sampled:
Terracon Consultants, Inc.
MW-14
PH14008-005
08/12/2014 2039
08/14/2014
Aqueous
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 SM 6200B-SM 6200B-2011 1 08/21/2014 1528 EH1 54542
AnalyticalCAS
Parameter Number Method Result Q PQL Units RunMDL
1,1,1,2-Tetrachloroethane 630-20-6 SM 6200B-20 ND 1ug/L0.0570.50
1,1,2,2-Tetrachloroethane 79-34-5 SM 6200B-20 ND 1ug/L0.0130.50
Tetrachloroethene 127-18-4 SM 6200B-20 ND 1ug/L0.0140.50
Toluene 108-88-3 SM 6200B-20 0.53 1ug/L0.170.50
1,1,2-Trichloro-1,2,2-Trifluoroethane 76-13-1 SM 6200B-20 ND 1ug/L0.300.50
1,2,3-Trichlorobenzene 87-61-6 SM 6200B-20 ND 1ug/L0.170.50
1,2,4-Trichlorobenzene 120-82-1 SM 6200B-20 ND 1ug/L0.170.50
1,1,1-Trichloroethane 71-55-6 SM 6200B-20 ND 1ug/L0.0290.50
1,1,2-Trichloroethane 79-00-5 SM 6200B-20 ND 1ug/L0.0310.50
Trichloroethene 79-01-6 SM 6200B-20 ND 1ug/L0.0240.50
Trichlorofluoromethane 75-69-4 SM 6200B-20 ND 1ug/L0.0510.50
1,2,3-Trichloropropane 96-18-4 SM 6200B-20 ND 1ug/L0.330.50
1,3,5-Trimethylbenzene (Mesitylene)108-67-8 SM 6200B-20 ND 1ug/L0.170.50
1,2,4-Trimethylbenzene 95-63-6 SM 6200B-20 ND 1ug/L0.170.50
Vinyl chloride 75-01-4 SM 6200B-20 ND 1ug/L0.0650.50
m+p - Xylenes 179601-23-1 SM 6200B-20 0.29 J 1ug/L0.170.50
o - Xylenes 95-47-6 SM 6200B-20 ND 1ug/L0.170.50
AcceptanceRun 1
Surrogate Q % Recovery Limits
1,2-Dichloroethane-d4 102 70-130
Bromofluorobenzene 97 70-130
Toluene-d8 101 70-130
J = Estimated result < PQL and > MDL
PQL = Practical quantitation limit B = Detected in the method blank E = Quantitation of compound exceeded the calibration range
P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the MDL
Where applicable, all soil sample analysis are reported on a dry weight basis unless flagged with a "W"
N = Recovery is out of criteria_
H = Out of holding time
Page: 15 of 30
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.
Level 1 Report v2.1
Volatile Organic Compounds by GC/MS
Description:Matrix:
Date Received:
Client:Laboratory ID:
Date Sampled:
Terracon Consultants, Inc.
MW-9
PH14008-006
08/12/2014 2137
08/14/2014
Aqueous
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 SM 6200B-SM 6200B-2011 1 08/21/2014 1554 EH1 54542
AnalyticalCAS
Parameter Number Method Result Q PQL Units RunMDL
Benzene 71-43-2 SM 6200B-20 2.0 1ug/L0.0270.50
Bromobenzene 108-86-1 SM 6200B-20 ND 1ug/L0.0270.50
Bromochloromethane 74-97-5 SM 6200B-20 ND 1ug/L0.0550.50
Bromodichloromethane 75-27-4 SM 6200B-20 ND 1ug/L0.170.50
Bromoform 75-25-2 SM 6200B-20 ND 1ug/L0.0100.50
Bromomethane (Methyl bromide)74-83-9 SM 6200B-20 ND 1ug/L0.200.50
n-Butylbenzene 104-51-8 SM 6200B-20 ND 1ug/L0.0170.50
sec-Butylbenzene 135-98-8 SM 6200B-20 1.4 1ug/L0.0100.50
tert-Butylbenzene 98-06-6 SM 6200B-20 ND 1ug/L0.0370.50
Carbon tetrachloride 56-23-5 SM 6200B-20 ND 1ug/L0.0850.50
Chlorobenzene 108-90-7 SM 6200B-20 ND 1ug/L0.170.50
Chloroethane 75-00-3 SM 6200B-20 ND 1ug/L0.170.50
Chloroform 67-66-3 SM 6200B-20 ND 1ug/L0.170.50
Chloromethane (Methyl chloride)74-87-3 SM 6200B-20 ND 1ug/L0.170.50
2-Chlorotoluene 95-49-8 SM 6200B-20 ND 1ug/L0.0590.50
4-Chlorotoluene 106-43-4 SM 6200B-20 ND 1ug/L0.0190.50
Dibromochloromethane 124-48-1 SM 6200B-20 ND 1ug/L0.170.50
1,2-Dibromoethane (EDB)106-93-4 SM 6200B-20 ND 1ug/L0.0610.50
Dibromomethane (Methylene bromide)74-95-3 SM 6200B-20 ND 1ug/L0.0940.50
1,2-Dichlorobenzene 95-50-1 SM 6200B-20 ND 1ug/L0.170.50
1,3-Dichlorobenzene 541-73-1 SM 6200B-20 ND 1ug/L0.170.50
1,4-Dichlorobenzene 106-46-7 SM 6200B-20 ND 1ug/L0.170.50
Dichlorodifluoromethane 75-71-8 SM 6200B-20 ND 1ug/L0.0710.50
1,1-Dichloroethane 75-34-3 SM 6200B-20 ND 1ug/L0.0540.50
1,2-Dichloroethane 107-06-2 SM 6200B-20 1.3 1ug/L0.0230.50
1,1-Dichloroethene 75-35-4 SM 6200B-20 ND 1ug/L0.0940.50
cis-1,2-Dichloroethene 156-59-2 SM 6200B-20 ND 1ug/L0.0870.50
trans-1,2-Dichloroethene 156-60-5 SM 6200B-20 ND 1ug/L0.0790.50
1,2-Dichloropropane 78-87-5 SM 6200B-20 ND 1ug/L0.0810.50
1,3-Dichloropropane 142-28-9 SM 6200B-20 ND 1ug/L0.0190.50
2,2-Dichloropropane 594-20-7 SM 6200B-20 ND 1ug/L0.0600.50
1,1-Dichloropropene 563-58-6 SM 6200B-20 ND 1ug/L0.0740.50
cis-1,3-Dichloropropene 10061-01-5 SM 6200B-20 ND 1ug/L0.0900.50
trans-1,3-Dichloropropene 10061-02-6 SM 6200B-20 ND 1ug/L0.180.50
Diisopropyl ether (IPE)108-20-3 SM 6200B-20 0.59 1ug/L0.0520.50
Ethylbenzene 100-41-4 SM 6200B-20 0.31 J 1ug/L0.170.50
Hexachlorobutadiene 87-68-3 SM 6200B-20 ND 1ug/L0.170.50
Isopropylbenzene (Cumene)98-82-8 SM 6200B-20 0.69 1ug/L0.0290.50
p-Isopropyltoluene (p-Cymene)99-87-6 SM 6200B-20 ND 1ug/L0.0180.50
Methyl tertiary butyl ether (MTBE)1634-04-4 SM 6200B-20 1.4 1ug/L0.0190.50
Methylene chloride 75-09-2 SM 6200B-20 ND 1ug/L0.170.50
Naphthalene 91-20-3 SM 6200B-20 ND 1ug/L0.170.50
n-Propylbenzene 103-65-1 SM 6200B-20 ND 1ug/L0.0240.50
Styrene 100-42-5 SM 6200B-20 ND 1ug/L0.0150.50
J = Estimated result < PQL and > MDL
PQL = Practical quantitation limit B = Detected in the method blank E = Quantitation of compound exceeded the calibration range
P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the MDL
Where applicable, all soil sample analysis are reported on a dry weight basis unless flagged with a "W"
N = Recovery is out of criteria_
H = Out of holding time
Page: 16 of 30
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.
Level 1 Report v2.1
Volatile Organic Compounds by GC/MS
Description:Matrix:
Date Received:
Client:Laboratory ID:
Date Sampled:
Terracon Consultants, Inc.
MW-9
PH14008-006
08/12/2014 2137
08/14/2014
Aqueous
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 SM 6200B-SM 6200B-2011 1 08/21/2014 1554 EH1 54542
AnalyticalCAS
Parameter Number Method Result Q PQL Units RunMDL
1,1,1,2-Tetrachloroethane 630-20-6 SM 6200B-20 ND 1ug/L0.0570.50
1,1,2,2-Tetrachloroethane 79-34-5 SM 6200B-20 ND 1ug/L0.0130.50
Tetrachloroethene 127-18-4 SM 6200B-20 ND 1ug/L0.0140.50
Toluene 108-88-3 SM 6200B-20 0.18 J 1ug/L0.170.50
1,1,2-Trichloro-1,2,2-Trifluoroethane 76-13-1 SM 6200B-20 ND 1ug/L0.300.50
1,2,3-Trichlorobenzene 87-61-6 SM 6200B-20 ND 1ug/L0.170.50
1,2,4-Trichlorobenzene 120-82-1 SM 6200B-20 ND 1ug/L0.170.50
1,1,1-Trichloroethane 71-55-6 SM 6200B-20 ND 1ug/L0.0290.50
1,1,2-Trichloroethane 79-00-5 SM 6200B-20 ND 1ug/L0.0310.50
Trichloroethene 79-01-6 SM 6200B-20 ND 1ug/L0.0240.50
Trichlorofluoromethane 75-69-4 SM 6200B-20 ND 1ug/L0.0510.50
1,2,3-Trichloropropane 96-18-4 SM 6200B-20 ND 1ug/L0.330.50
1,3,5-Trimethylbenzene (Mesitylene)108-67-8 SM 6200B-20 ND 1ug/L0.170.50
1,2,4-Trimethylbenzene 95-63-6 SM 6200B-20 ND 1ug/L0.170.50
Vinyl chloride 75-01-4 SM 6200B-20 ND 1ug/L0.0650.50
m+p - Xylenes 179601-23-1 SM 6200B-20 0.45 J 1ug/L0.170.50
o - Xylenes 95-47-6 SM 6200B-20 ND 1ug/L0.170.50
AcceptanceRun 1
Surrogate Q % Recovery Limits
1,2-Dichloroethane-d4 102 70-130
Bromofluorobenzene 97 70-130
Toluene-d8 101 70-130
J = Estimated result < PQL and > MDL
PQL = Practical quantitation limit B = Detected in the method blank E = Quantitation of compound exceeded the calibration range
P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the MDL
Where applicable, all soil sample analysis are reported on a dry weight basis unless flagged with a "W"
N = Recovery is out of criteria_
H = Out of holding time
Page: 17 of 30
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.
Level 1 Report v2.1
Volatile Organic Compounds by GC/MS
Description:Matrix:
Date Received:
Client:Laboratory ID:
Date Sampled:
Terracon Consultants, Inc.
MW-12
PH14008-007
08/12/2014 2224
08/14/2014
Aqueous
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 SM 6200B-SM 6200B-2011 50 08/21/2014 2030 EH1 54542
AnalyticalCAS
Parameter Number Method Result Q PQL Units RunMDL
Benzene 71-43-2 SM 6200B-20 7800 1ug/L1.425
Bromobenzene 108-86-1 SM 6200B-20 ND 1ug/L1.425
Bromochloromethane 74-97-5 SM 6200B-20 ND 1ug/L2.825
Bromodichloromethane 75-27-4 SM 6200B-20 ND 1ug/L8.525
Bromoform 75-25-2 SM 6200B-20 ND 1ug/L0.5125
Bromomethane (Methyl bromide)74-83-9 SM 6200B-20 ND 1ug/L1025
n-Butylbenzene 104-51-8 SM 6200B-20 ND 1ug/L0.8425
sec-Butylbenzene 135-98-8 SM 6200B-20 21 J 1ug/L0.5225
tert-Butylbenzene 98-06-6 SM 6200B-20 ND 1ug/L1.925
Carbon tetrachloride 56-23-5 SM 6200B-20 ND 1ug/L4.325
Chlorobenzene 108-90-7 SM 6200B-20 ND 1ug/L8.525
Chloroethane 75-00-3 SM 6200B-20 ND 1ug/L8.525
Chloroform 67-66-3 SM 6200B-20 ND 1ug/L8.525
Chloromethane (Methyl chloride)74-87-3 SM 6200B-20 ND 1ug/L8.725
2-Chlorotoluene 95-49-8 SM 6200B-20 ND 1ug/L3.025
4-Chlorotoluene 106-43-4 SM 6200B-20 ND 1ug/L0.9525
Dibromochloromethane 124-48-1 SM 6200B-20 ND 1ug/L8.525
1,2-Dibromoethane (EDB)106-93-4 SM 6200B-20 ND 1ug/L3.125
Dibromomethane (Methylene bromide)74-95-3 SM 6200B-20 ND 1ug/L4.725
1,2-Dichlorobenzene 95-50-1 SM 6200B-20 ND 1ug/L8.525
1,3-Dichlorobenzene 541-73-1 SM 6200B-20 ND 1ug/L8.525
1,4-Dichlorobenzene 106-46-7 SM 6200B-20 ND 1ug/L8.525
Dichlorodifluoromethane 75-71-8 SM 6200B-20 ND 1ug/L3.525
1,1-Dichloroethane 75-34-3 SM 6200B-20 ND 1ug/L2.725
1,2-Dichloroethane 107-06-2 SM 6200B-20 ND 1ug/L1.225
1,1-Dichloroethene 75-35-4 SM 6200B-20 ND 1ug/L4.725
cis-1,2-Dichloroethene 156-59-2 SM 6200B-20 ND 1ug/L4.425
trans-1,2-Dichloroethene 156-60-5 SM 6200B-20 ND 1ug/L4.025
1,2-Dichloropropane 78-87-5 SM 6200B-20 ND 1ug/L4.125
1,3-Dichloropropane 142-28-9 SM 6200B-20 ND 1ug/L0.9525
2,2-Dichloropropane 594-20-7 SM 6200B-20 ND 1ug/L3.025
1,1-Dichloropropene 563-58-6 SM 6200B-20 ND 1ug/L3.725
cis-1,3-Dichloropropene 10061-01-5 SM 6200B-20 ND 1ug/L4.525
trans-1,3-Dichloropropene 10061-02-6 SM 6200B-20 ND 1ug/L9.025
Diisopropyl ether (IPE)108-20-3 SM 6200B-20 46 1ug/L2.625
Ethylbenzene 100-41-4 SM 6200B-20 2900 1ug/L8.525
Hexachlorobutadiene 87-68-3 SM 6200B-20 ND 1ug/L8.525
Isopropylbenzene (Cumene)98-82-8 SM 6200B-20 160 1ug/L1.425
p-Isopropyltoluene (p-Cymene)99-87-6 SM 6200B-20 ND 1ug/L0.8925
Methyl tertiary butyl ether (MTBE)1634-04-4 SM 6200B-20 99 1ug/L0.9525
Methylene chloride 75-09-2 SM 6200B-20 ND 1ug/L8.525
Naphthalene 91-20-3 SM 6200B-20 330 1ug/L8.525
n-Propylbenzene 103-65-1 SM 6200B-20 360 1ug/L1.225
Styrene 100-42-5 SM 6200B-20 ND 1ug/L0.7525
J = Estimated result < PQL and > MDL
PQL = Practical quantitation limit B = Detected in the method blank E = Quantitation of compound exceeded the calibration range
P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the MDL
Where applicable, all soil sample analysis are reported on a dry weight basis unless flagged with a "W"
N = Recovery is out of criteria_
H = Out of holding time
Page: 18 of 30
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.
Level 1 Report v2.1
Volatile Organic Compounds by GC/MS
Description:Matrix:
Date Received:
Client:Laboratory ID:
Date Sampled:
Terracon Consultants, Inc.
MW-12
PH14008-007
08/12/2014 2224
08/14/2014
Aqueous
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 SM 6200B-SM 6200B-2011 50 08/21/2014 2030 EH1 54542
AnalyticalCAS
Parameter Number Method Result Q PQL Units RunMDL
1,1,1,2-Tetrachloroethane 630-20-6 SM 6200B-20 ND 1ug/L2.925
1,1,2,2-Tetrachloroethane 79-34-5 SM 6200B-20 ND 1ug/L0.6525
Tetrachloroethene 127-18-4 SM 6200B-20 ND 1ug/L0.7225
Toluene 108-88-3 SM 6200B-20 3600 1ug/L8.525
1,1,2-Trichloro-1,2,2-Trifluoroethane 76-13-1 SM 6200B-20 ND 1ug/L1525
1,2,3-Trichlorobenzene 87-61-6 SM 6200B-20 ND 1ug/L8.525
1,2,4-Trichlorobenzene 120-82-1 SM 6200B-20 ND 1ug/L8.525
1,1,1-Trichloroethane 71-55-6 SM 6200B-20 ND 1ug/L1.425
1,1,2-Trichloroethane 79-00-5 SM 6200B-20 ND 1ug/L1.625
Trichloroethene 79-01-6 SM 6200B-20 ND 1ug/L1.225
Trichlorofluoromethane 75-69-4 SM 6200B-20 ND 1ug/L2.525
1,2,3-Trichloropropane 96-18-4 SM 6200B-20 ND 1ug/L1725
1,3,5-Trimethylbenzene (Mesitylene)108-67-8 SM 6200B-20 640 1ug/L8.525
1,2,4-Trimethylbenzene 95-63-6 SM 6200B-20 2200 1ug/L8.525
Vinyl chloride 75-01-4 SM 6200B-20 ND 1ug/L3.325
m+p - Xylenes 179601-23-1 SM 6200B-20 6000 1ug/L8.525
o - Xylenes 95-47-6 SM 6200B-20 2700 1ug/L8.525
AcceptanceRun 1
Surrogate Q % Recovery Limits
1,2-Dichloroethane-d4 102 70-130
Bromofluorobenzene 95 70-130
Toluene-d8 101 70-130
J = Estimated result < PQL and > MDL
PQL = Practical quantitation limit B = Detected in the method blank E = Quantitation of compound exceeded the calibration range
P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the MDL
Where applicable, all soil sample analysis are reported on a dry weight basis unless flagged with a "W"
N = Recovery is out of criteria_
H = Out of holding time
Page: 19 of 30
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.
Level 1 Report v2.1
QC Summary
Page: 20 of 30
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.
Level 1 Report v2.1
Volatile Organic Compounds by GC/MS - MB
Batch:Prep Method:
Sample ID:PQ54542-001
54542 SM 6200B-2011
Analytical Method:SM 6200B-2011
Matrix:Aqueous
Parameter Result Q PQL MDL Units Analysis DateDil
Benzene ND 08/21/2014 12420.50 0.027 ug/L1
Bromobenzene ND 08/21/2014 12420.50 0.027 ug/L1
Bromochloromethane ND 08/21/2014 12420.50 0.055 ug/L1
Bromodichloromethane ND 08/21/2014 12420.50 0.17 ug/L1
Bromoform ND 08/21/2014 12420.50 0.010 ug/L1
Bromomethane (Methyl bromide)ND 08/21/2014 12420.50 0.20 ug/L1
tert-Butylbenzene ND 08/21/2014 12420.50 0.037 ug/L1
sec-Butylbenzene ND 08/21/2014 12420.50 0.010 ug/L1
n-Butylbenzene ND 08/21/2014 12420.50 0.017 ug/L1
Carbon tetrachloride ND 08/21/2014 12420.50 0.085 ug/L1
Chlorobenzene ND 08/21/2014 12420.50 0.17 ug/L1
Chloroethane ND 08/21/2014 12420.50 0.17 ug/L1
Chloroform ND 08/21/2014 12420.50 0.17 ug/L1
Chloromethane (Methyl chloride)ND 08/21/2014 12420.50 0.17 ug/L1
4-Chlorotoluene ND 08/21/2014 12420.50 0.019 ug/L1
2-Chlorotoluene ND 08/21/2014 12420.50 0.059 ug/L1
Dibromochloromethane ND 08/21/2014 12420.50 0.17 ug/L1
1,2-Dibromoethane (EDB)ND 08/21/2014 12420.50 0.061 ug/L1
Dibromomethane (Methylene bromide)ND 08/21/2014 12420.50 0.094 ug/L1
1,4-Dichlorobenzene ND 08/21/2014 12420.50 0.17 ug/L1
1,3-Dichlorobenzene ND 08/21/2014 12420.50 0.17 ug/L1
1,2-Dichlorobenzene ND 08/21/2014 12420.50 0.17 ug/L1
Dichlorodifluoromethane ND 08/21/2014 12420.50 0.071 ug/L1
1,2-Dichloroethane ND 08/21/2014 12420.50 0.023 ug/L1
1,1-Dichloroethane ND 08/21/2014 12420.50 0.054 ug/L1
trans-1,2-Dichloroethene ND 08/21/2014 12420.50 0.079 ug/L1
cis-1,2-Dichloroethene ND 08/21/2014 12420.50 0.087 ug/L1
1,1-Dichloroethene ND 08/21/2014 12420.50 0.094 ug/L1
2,2-Dichloropropane ND 08/21/2014 12420.50 0.060 ug/L1
1,3-Dichloropropane ND 08/21/2014 12420.50 0.019 ug/L1
1,2-Dichloropropane ND 08/21/2014 12420.50 0.081 ug/L1
trans-1,3-Dichloropropene ND 08/21/2014 12420.50 0.18 ug/L1
cis-1,3-Dichloropropene ND 08/21/2014 12420.50 0.090 ug/L1
1,1-Dichloropropene ND 08/21/2014 12420.50 0.074 ug/L1
Diisopropyl ether (IPE)ND 08/21/2014 12420.50 0.052 ug/L1
Ethylbenzene ND 08/21/2014 12420.50 0.17 ug/L1
Hexachlorobutadiene ND 08/21/2014 12420.50 0.17 ug/L1
Isopropylbenzene (Cumene)ND 08/21/2014 12420.50 0.029 ug/L1
p-Isopropyltoluene (p-Cymene)ND 08/21/2014 12420.50 0.018 ug/L1
Methyl tertiary butyl ether (MTBE)ND 08/21/2014 12420.50 0.019 ug/L1
Methylene chloride ND 08/21/2014 12420.50 0.17 ug/L1
Naphthalene ND 08/21/2014 12420.50 0.17 ug/L1
n-Propylbenzene ND 08/21/2014 12420.50 0.024 ug/L1
Styrene ND 08/21/2014 12420.50 0.015 ug/L1
Note:Calculations are performed before rounding to avoid round-off errors in calculated results
PQL = Practical quantitation limit
ND = Not detected at or above the MDL
Where applicable, all soil sample analysis are reported on a dry weight basis unless flagged with a "W"
J = Estimated result < PQL and > MDL
N = Recovery is out of criteriaP = The RPD between two GC columns exceeds 40%
+ = RPD is out of criteria_
Page: 21 of 30
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.
Level 1 Report v2.1
Volatile Organic Compounds by GC/MS - MB
Batch:Prep Method:
Sample ID:PQ54542-001
54542 SM 6200B-2011
Analytical Method:SM 6200B-2011
Matrix:Aqueous
Parameter Result Q PQL MDL Units Analysis DateDil
1,1,2,2-Tetrachloroethane ND 08/21/2014 12420.50 0.013 ug/L1
1,1,1,2-Tetrachloroethane ND 08/21/2014 12420.50 0.057 ug/L1
Tetrachloroethene ND 08/21/2014 12420.50 0.014 ug/L1
Toluene ND 08/21/2014 12420.50 0.17 ug/L1
1,1,2-Trichloro-1,2,2-Trifluoroethane ND 08/21/2014 12420.50 0.30 ug/L1
1,2,4-Trichlorobenzene ND 08/21/2014 12420.50 0.17 ug/L1
1,2,3-Trichlorobenzene ND 08/21/2014 12420.50 0.17 ug/L1
1,1,2-Trichloroethane ND 08/21/2014 12420.50 0.031 ug/L1
1,1,1-Trichloroethane ND 08/21/2014 12420.50 0.029 ug/L1
Trichloroethene ND 08/21/2014 12420.50 0.024 ug/L1
Trichlorofluoromethane ND 08/21/2014 12420.50 0.051 ug/L1
1,2,3-Trichloropropane ND 08/21/2014 12420.50 0.33 ug/L1
1,2,4-Trimethylbenzene ND 08/21/2014 12420.50 0.17 ug/L1
1,3,5-Trimethylbenzene (Mesitylene)ND 08/21/2014 12420.50 0.17 ug/L1
Vinyl chloride ND 08/21/2014 12420.50 0.065 ug/L1
o - Xylenes ND 08/21/2014 12420.50 0.17 ug/L1
m+p - Xylenes ND 08/21/2014 12420.50 0.17 ug/L1
Surrogate Q % Rec Acceptance
Limit
Bromofluorobenzene 95 70-130
1,2-Dichloroethane-d4 103 70-130
Toluene-d8 102 70-130
Note:Calculations are performed before rounding to avoid round-off errors in calculated results
PQL = Practical quantitation limit
ND = Not detected at or above the MDL
Where applicable, all soil sample analysis are reported on a dry weight basis unless flagged with a "W"
J = Estimated result < PQL and > MDL
N = Recovery is out of criteriaP = The RPD between two GC columns exceeds 40%
+ = RPD is out of criteria_
Page: 22 of 30
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.
Level 1 Report v2.1
Volatile Organic Compounds by GC/MS - LCS
Batch:Prep Method:
Sample ID:PQ54542-002
54542 SM 6200B-2011
Analytical Method:SM 6200B-2011
Matrix:Aqueous
Parameter
Result
Q % Rec
Spike
Amount
Analysis Date
% Rec
LimitDil(ug/L)(ug/L)
Benzene 49 08/21/2014 1108995070-1301
Bromobenzene 49 08/21/2014 1108995070-1301
Bromochloromethane 50 08/21/2014 11081015070-1301
Bromodichloromethane 51 08/21/2014 11081025070-1301
Bromoform 53 08/21/2014 11081065070-1301
Bromomethane (Methyl bromide)46 08/21/2014 1108925060-1401
tert-Butylbenzene 49 08/21/2014 1108985070-1301
sec-Butylbenzene 48 08/21/2014 1108975070-1301
n-Butylbenzene 50 08/21/2014 11081015070-1301
Carbon tetrachloride 52 08/21/2014 11081035070-1301
Chlorobenzene 49 08/21/2014 1108995070-1301
Chloroethane 48 08/21/2014 1108965042-1631
Chloroform 50 08/21/2014 1108995070-1301
Chloromethane (Methyl chloride)49 08/21/2014 1108975020-1581
4-Chlorotoluene 50 08/21/2014 1108995070-1301
2-Chlorotoluene 47 08/21/2014 1108955070-1301
Dibromochloromethane 52 08/21/2014 11081055070-1301
1,2-Dibromoethane (EDB)50 08/21/2014 11081005070-1301
Dibromomethane (Methylene bromide)49 08/21/2014 1108985070-1301
1,4-Dichlorobenzene 49 08/21/2014 1108985070-1301
1,3-Dichlorobenzene 49 08/21/2014 1108985070-1301
1,2-Dichlorobenzene 50 08/21/2014 1108995070-1301
Dichlorodifluoromethane 50 08/21/2014 1108995060-1401
1,2-Dichloroethane 49 08/21/2014 1108985070-1301
1,1-Dichloroethane 50 08/21/2014 11081005070-1301
trans-1,2-Dichloroethene 51 08/21/2014 11081015070-1301
cis-1,2-Dichloroethene 50 08/21/2014 1108995070-1301
1,1-Dichloroethene 52 08/21/2014 11081035070-1301
2,2-Dichloropropane 55 08/21/2014 11081105070-1301
1,3-Dichloropropane 49 08/21/2014 1108985070-1301
1,2-Dichloropropane 49 08/21/2014 1108995070-1301
trans-1,3-Dichloropropene 52 08/21/2014 11081045070-1301
cis-1,3-Dichloropropene 52 08/21/2014 11081055070-1301
1,1-Dichloropropene 49 08/21/2014 1108985070-1301
Diisopropyl ether (IPE)50 08/21/2014 11081005070-1301
Ethylbenzene 50 08/21/2014 1108995070-1301
Hexachlorobutadiene 52 08/21/2014 11081045070-1301
Isopropylbenzene (Cumene)48 08/21/2014 1108975070-1301
p-Isopropyltoluene (p-Cymene)50 08/21/2014 11081005070-1301
Methyl tertiary butyl ether (MTBE)49 08/21/2014 1108995070-1301
Methylene chloride 49 08/21/2014 1108985070-1301
Naphthalene 53 08/21/2014 11081055050-1401
n-Propylbenzene 48 08/21/2014 1108975070-1301
Styrene 52 08/21/2014 11081045070-1301
Note:Calculations are performed before rounding to avoid round-off errors in calculated results
PQL = Practical quantitation limit
ND = Not detected at or above the MDL
Where applicable, all soil sample analysis are reported on a dry weight basis unless flagged with a "W"
J = Estimated result < PQL and > MDL
N = Recovery is out of criteriaP = The RPD between two GC columns exceeds 40%
+ = RPD is out of criteria_
Page: 23 of 30
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.
Level 1 Report v2.1
Volatile Organic Compounds by GC/MS - LCS
Batch:Prep Method:
Sample ID:PQ54542-002
54542 SM 6200B-2011
Analytical Method:SM 6200B-2011
Matrix:Aqueous
Parameter
Result
Q % Rec
Spike
Amount
Analysis Date
% Rec
LimitDil(ug/L)(ug/L)
1,1,2,2-Tetrachloroethane 48 08/21/2014 1108965070-1301
1,1,1,2-Tetrachloroethane 51 08/21/2014 11081015070-1301
Tetrachloroethene 49 08/21/2014 1108985070-1301
Toluene 50 08/21/2014 1108995070-1301
1,1,2-Trichloro-1,2,2-Trifluoroethane 64 08/21/2014 11081295070-1301
1,2,4-Trichlorobenzene 52 08/21/2014 11081055070-1301
1,2,3-Trichlorobenzene 53 08/21/2014 11081055070-1301
1,1,2-Trichloroethane 49 08/21/2014 1108985070-1301
1,1,1-Trichloroethane 51 08/21/2014 11081025070-1301
Trichloroethene 50 08/21/2014 1108995070-1301
Trichlorofluoromethane 49 08/21/2014 1108985060-1401
1,2,3-Trichloropropane 48 08/21/2014 1108965070-1301
1,2,4-Trimethylbenzene 49 08/21/2014 1108995070-1301
1,3,5-Trimethylbenzene (Mesitylene)49 08/21/2014 1108995070-1301
Vinyl chloride 50 08/21/2014 1108995060-1401
o - Xylenes 50 08/21/2014 1108995070-1301
m+p - Xylenes 50 08/21/2014 11081005070-1301
Surrogate Q % Rec Acceptance
Limit
Bromofluorobenzene 98 70-130
1,2-Dichloroethane-d4 101 70-130
Toluene-d8 102 70-130
Note:Calculations are performed before rounding to avoid round-off errors in calculated results
PQL = Practical quantitation limit
ND = Not detected at or above the MDL
Where applicable, all soil sample analysis are reported on a dry weight basis unless flagged with a "W"
J = Estimated result < PQL and > MDL
N = Recovery is out of criteriaP = The RPD between two GC columns exceeds 40%
+ = RPD is out of criteria_
Page: 24 of 30
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Shealy Environmental Services, Inc.
Level 1 Report v2.1
Volatile Organic Compounds by GC/MS - LCSD
Batch:Prep Method:
Sample ID:PQ54542-003
54542 SM 6200B-2011
Analytical Method:SM 6200B-2011
Matrix:Aqueous
Parameter
Result
Q % Rec
Spike
Amount
Analysis Date% RPD
% Rec
Limit
% RPD
LimitDil(ug/L)(ug/L)
Benzene 49 08/21/2014 1131985070-1300.38 201
Bromobenzene 50 08/21/2014 1131995070-1300.58 201
Bromochloromethane 51 08/21/2014 11311015070-1300.14 201
Bromodichloromethane 52 08/21/2014 11311035070-1300.70 201
Bromoform 54 08/21/2014 11311085070-1301.8 201
Bromomethane (Methyl bromide)48 08/21/2014 1131965060-1404.1 201
tert-Butylbenzene 49 08/21/2014 1131995070-1300.72 201
sec-Butylbenzene 49 08/21/2014 1131995070-1302.0 201
n-Butylbenzene 51 08/21/2014 11311025070-1301.1 201
Carbon tetrachloride 51 08/21/2014 11311035070-1300.45 201
Chlorobenzene 50 08/21/2014 11311005070-1300.60 201
Chloroethane 49 08/21/2014 1131985042-1632.5 201
Chloroform 50 08/21/2014 1131995070-1300.028 201
Chloromethane (Methyl chloride)46 08/21/2014 1131935020-1584.4 201
4-Chlorotoluene 51 08/21/2014 11311025070-1302.7 201
2-Chlorotoluene 49 08/21/2014 1131975070-1302.8 201
Dibromochloromethane 53 08/21/2014 11311065070-1300.99 201
1,2-Dibromoethane (EDB)50 08/21/2014 11311015070-1301.4 201
Dibromomethane (Methylene bromide)49 08/21/2014 1131985070-1300.11 201
1,4-Dichlorobenzene 49 08/21/2014 1131995070-1300.97 201
1,3-Dichlorobenzene 49 08/21/2014 1131995070-1300.13 201
1,2-Dichlorobenzene 50 08/21/2014 11311005070-1300.88 201
Dichlorodifluoromethane 48 08/21/2014 1131965060-1403.2 201
1,2-Dichloroethane 49 08/21/2014 1131985070-1300.11 201
1,1-Dichloroethane 50 08/21/2014 11311005070-1300.42 201
trans-1,2-Dichloroethene 51 08/21/2014 11311015070-1300.24 201
cis-1,2-Dichloroethene 50 08/21/2014 11311005070-1300.62 201
1,1-Dichloroethene 52 08/21/2014 11311045070-1301.1 201
2,2-Dichloropropane 52 08/21/2014 11311055070-1304.9 201
1,3-Dichloropropane 49 08/21/2014 1131985070-1300.16 201
1,2-Dichloropropane 49 08/21/2014 1131985070-1300.31 201
trans-1,3-Dichloropropene 53 08/21/2014 11311055070-1301.4 201
cis-1,3-Dichloropropene 52 08/21/2014 11311055070-1300.038 201
1,1-Dichloropropene 50 08/21/2014 1131995070-1300.83 201
Diisopropyl ether (IPE)53 08/21/2014 11311065070-1305.3 201
Ethylbenzene 50 08/21/2014 11311015070-1301.8 201
Hexachlorobutadiene 51 08/21/2014 11311035070-1301.3 201
Isopropylbenzene (Cumene)50 08/21/2014 1131995070-1303.0 201
p-Isopropyltoluene (p-Cymene)51 08/21/2014 11311015070-1301.0 201
Methyl tertiary butyl ether (MTBE)52 08/21/2014 11311045070-1305.5 201
Methylene chloride 48 08/21/2014 1131975070-1301.6 201
Naphthalene 51 08/21/2014 11311035050-1402.2 201
n-Propylbenzene 49 08/21/2014 1131995070-1302.4 201
Styrene 52 08/21/2014 11311045070-1300.10 201
Note:Calculations are performed before rounding to avoid round-off errors in calculated results
PQL = Practical quantitation limit
ND = Not detected at or above the MDL
Where applicable, all soil sample analysis are reported on a dry weight basis unless flagged with a "W"
J = Estimated result < PQL and > MDL
N = Recovery is out of criteriaP = The RPD between two GC columns exceeds 40%
+ = RPD is out of criteria_
Page: 25 of 30
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.
Level 1 Report v2.1
Volatile Organic Compounds by GC/MS - LCSD
Batch:Prep Method:
Sample ID:PQ54542-003
54542 SM 6200B-2011
Analytical Method:SM 6200B-2011
Matrix:Aqueous
Parameter
Result
Q % Rec
Spike
Amount
Analysis Date% RPD
% Rec
Limit
% RPD
LimitDil(ug/L)(ug/L)
1,1,2,2-Tetrachloroethane 49 08/21/2014 1131975070-1301.5 201
1,1,1,2-Tetrachloroethane 51 08/21/2014 11311035070-1301.2 201
Tetrachloroethene 50 08/21/2014 1131995070-1301.0 201
Toluene 50 08/21/2014 11311005070-1300.15 201
1,1,2-Trichloro-1,2,2-Trifluoroethane 59 08/21/2014 11311195070-1308.1 201
1,2,4-Trichlorobenzene 51 08/21/2014 11311025070-1302.6 201
1,2,3-Trichlorobenzene 50 08/21/2014 11311005070-1304.7 201
1,1,2-Trichloroethane 50 08/21/2014 11311005070-1301.3 201
1,1,1-Trichloroethane 50 08/21/2014 11311015070-1300.80 201
Trichloroethene 50 08/21/2014 11311005070-1300.49 201
Trichlorofluoromethane 50 08/21/2014 11311015060-1403.1 201
1,2,3-Trichloropropane 49 08/21/2014 1131985070-1302.8 201
1,2,4-Trimethylbenzene 49 08/21/2014 1131995070-1300.45 201
1,3,5-Trimethylbenzene (Mesitylene)50 08/21/2014 11311015070-1302.0 201
Vinyl chloride 48 08/21/2014 1131955060-1403.9 201
o - Xylenes 50 08/21/2014 11311015070-1301.7 201
m+p - Xylenes 50 08/21/2014 11311015070-1301.2 201
Surrogate Q % Rec Acceptance
Limit
Bromofluorobenzene 97 70-130
1,2-Dichloroethane-d4 99 70-130
Toluene-d8 101 70-130
Note:Calculations are performed before rounding to avoid round-off errors in calculated results
PQL = Practical quantitation limit
ND = Not detected at or above the MDL
Where applicable, all soil sample analysis are reported on a dry weight basis unless flagged with a "W"
J = Estimated result < PQL and > MDL
N = Recovery is out of criteriaP = The RPD between two GC columns exceeds 40%
+ = RPD is out of criteria_
Page: 26 of 30
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.
Level 1 Report v2.1
Volatile Organic Compounds by GC/MS - MS
Batch:Prep Method:
Sample ID:PH14008-007MS
54542 SM 6200B-2011
Analytical Method:SM 6200B-2011
Matrix:Aqueous
Parameter
Result
Q % Rec
Spike
Amount
Analysis Date
% Rec
Limit
Sample
Amount
Dil(ug/L)(ug/L)(ug/L)
Benzene 10000 08/21/2014 2053E97250070-130780050
Bromobenzene 2500 08/21/2014 2053100250070-130ND50
Bromochloromethane 2300 08/21/2014 205393250070-130ND50
Bromodichloromethane 2500 08/21/2014 2053100250070-130ND50
Bromoform 2400 08/21/2014 205394250070-130ND50
Bromomethane (Methyl bromide)2500 08/21/2014 205398250060-140ND50
n-Butylbenzene 2700 08/21/2014 2053108250070-130ND50
sec-Butylbenzene 2600 08/21/2014 2053104250070-1302150
tert-Butylbenzene 2900 08/21/2014 2053116250070-130ND50
Carbon tetrachloride 2600 08/21/2014 2053104250070-130ND50
Chlorobenzene 2500 08/21/2014 2053101250070-130ND50
Chloroethane 2700 08/21/2014 2053109250042-163ND50
Chloroform 2500 08/21/2014 205399250070-130ND50
Chloromethane (Methyl chloride)2400 08/21/2014 205394250020-158ND50
2-Chlorotoluene 2800 08/21/2014 2053111250070-130ND50
4-Chlorotoluene 2600 08/21/2014 2053103250070-130ND50
Dibromochloromethane 2500 08/21/2014 2053100250070-130ND50
1,2-Dibromoethane (EDB)2400 08/21/2014 205396250070-130ND50
Dibromomethane (Methylene bromide)2300 08/21/2014 205393250070-130ND50
1,2-Dichlorobenzene 2500 08/21/2014 205399250070-130ND50
1,3-Dichlorobenzene 2500 08/21/2014 205399250070-130ND50
1,4-Dichlorobenzene 2500 08/21/2014 205399250070-130ND50
Dichlorodifluoromethane 2600 08/21/2014 2053103250060-140ND50
1,1-Dichloroethane 2600 08/21/2014 2053102250070-130ND50
1,2-Dichloroethane 2700 08/21/2014 2053107250070-130ND50
1,1-Dichloroethene 2800 08/21/2014 2053112250070-130ND50
cis-1,2-Dichloroethene 2500 08/21/2014 205399250070-130ND50
trans-1,2-Dichloroethene 2600 08/21/2014 2053103250070-130ND50
1,2-Dichloropropane 2500 08/21/2014 205399250070-130ND50
1,3-Dichloropropane 2400 08/21/2014 205396250070-130ND50
2,2-Dichloropropane 2100 08/21/2014 205385250070-130ND50
1,1-Dichloropropene 2600 08/21/2014 2053103250070-130ND50
cis-1,3-Dichloropropene 2400 08/21/2014 205397250070-130ND50
trans-1,3-Dichloropropene 2400 08/21/2014 205397250070-130ND50
Diisopropyl ether (IPE)2600 08/21/2014 2053101250070-1304650
Ethylbenzene 5600 08/21/2014 2053109250070-130290050
Hexachlorobutadiene 2700 08/21/2014 2053108250070-130ND50
Isopropylbenzene (Cumene)2700 08/21/2014 2053103250070-13016050
p-Isopropyltoluene (p-Cymene)2700 08/21/2014 2053107250070-130ND50
Methyl tertiary butyl ether (MTBE)2400 08/21/2014 205392250070-1309950
Methylene chloride 2500 08/21/2014 2053100250070-130ND50
Naphthalene 2900 08/21/2014 2053102250050-14033050
n-Propylbenzene 2900 08/21/2014 2053103250070-13036050
Styrene 2700 08/21/2014 2053107250070-130ND50
Note:Calculations are performed before rounding to avoid round-off errors in calculated results
PQL = Practical quantitation limit
ND = Not detected at or above the MDL
Where applicable, all soil sample analysis are reported on a dry weight basis unless flagged with a "W"
J = Estimated result < PQL and > MDL
N = Recovery is out of criteriaP = The RPD between two GC columns exceeds 40%
+ = RPD is out of criteria_
Page: 27 of 30
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.
Level 1 Report v2.1
Volatile Organic Compounds by GC/MS - MS
Batch:Prep Method:
Sample ID:PH14008-007MS
54542 SM 6200B-2011
Analytical Method:SM 6200B-2011
Matrix:Aqueous
Parameter
Result
Q % Rec
Spike
Amount
Analysis Date
% Rec
Limit
Sample
Amount
Dil(ug/L)(ug/L)(ug/L)
1,1,1,2-Tetrachloroethane 2500 08/21/2014 2053101250070-130ND50
1,1,2,2-Tetrachloroethane 2300 08/21/2014 205390250070-130ND50
Tetrachloroethene 2600 08/21/2014 2053104250070-130ND50
Toluene 6200 08/21/2014 2053101250070-130360050
1,1,2-Trichloro-1,2,2-Trifluoroethane 3100 08/21/2014 2053124250070-130ND50
1,2,3-Trichlorobenzene 2700 08/21/2014 2053107250070-130ND50
1,2,4-Trichlorobenzene 2700 08/21/2014 2053106250070-130ND50
1,1,1-Trichloroethane 2600 08/21/2014 2053103250070-130ND50
1,1,2-Trichloroethane 2400 08/21/2014 205396250070-130ND50
Trichloroethene 2600 08/21/2014 2053103250070-130ND50
Trichlorofluoromethane 2700 08/21/2014 2053107250060-140ND50
1,2,3-Trichloropropane 2200 08/21/2014 205388250070-130ND50
1,3,5-Trimethylbenzene (Mesitylene)3300 08/21/2014 2053106250070-13064050
1,2,4-Trimethylbenzene 4800 08/21/2014 2053103250070-130220050
Vinyl chloride 2600 08/21/2014 2053103250060-140ND50
m+p - Xylenes 8700 08/21/2014 2053110250070-130600050
o - Xylenes 5300 08/21/2014 2053104250070-130270050
Surrogate Q % Rec Acceptance
Limit
1,2-Dichloroethane-d4 93 70-130
Bromofluorobenzene 97 70-130
Toluene-d8 102 70-130
Note:Calculations are performed before rounding to avoid round-off errors in calculated results
PQL = Practical quantitation limit
ND = Not detected at or above the MDL
Where applicable, all soil sample analysis are reported on a dry weight basis unless flagged with a "W"
J = Estimated result < PQL and > MDL
N = Recovery is out of criteriaP = The RPD between two GC columns exceeds 40%
+ = RPD is out of criteria_
Page: 28 of 30
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.
Level 1 Report v2.1
Volatile Organic Compounds by GC/MS - MSD
Batch:Prep Method:
Sample ID:PH14008-007MD
54542 SM 6200B-2011
Analytical Method:SM 6200B-2011
Matrix:Aqueous
Parameter
Result
Q % Rec
Spike
Amount
Analysis Date% RPD
% Rec
Limit
% RPD
Limit
Sample
Amount
Dil(ug/L)(ug/L)(ug/L)
Benzene 10000 08/21/2014 2116E93250070-1301.1 20780050
Bromobenzene 2500 08/21/2014 211698250070-1301.7 20ND50
Bromochloromethane 2400 08/21/2014 211697250070-1304.5 20ND50
Bromodichloromethane 2500 08/21/2014 2116101250070-1300.89 20ND50
Bromoform 2400 08/21/2014 211695250070-1301.2 20ND50
Bromomethane (Methyl bromide)2400 08/21/2014 211696250060-1402.1 20ND50
n-Butylbenzene 2500 08/21/2014 2116102250070-1305.4 20ND50
sec-Butylbenzene 2500 08/21/2014 211698250070-1306.2 202150
tert-Butylbenzene 2800 08/21/2014 2116110250070-1305.2 20ND50
Carbon tetrachloride 2500 08/21/2014 2116101250070-1303.2 20ND50
Chlorobenzene 2500 08/21/2014 211699250070-1302.8 20ND50
Chloroethane 2700 08/21/2014 2116107250042-1631.6 20ND50
Chloroform 2500 08/21/2014 211698250070-1300.89 20ND50
Chloromethane (Methyl chloride)2300 08/21/2014 211691250020-1584.1 20ND50
2-Chlorotoluene 2700 08/21/2014 2116107250070-1303.7 20ND50
4-Chlorotoluene 2500 08/21/2014 211698250070-1304.2 20ND50
Dibromochloromethane 2500 08/21/2014 2116101250070-1300.39 20ND50
1,2-Dibromoethane (EDB)2400 08/21/2014 211697250070-1301.1 20ND50
Dibromomethane (Methylene bromide)2300 08/21/2014 211694250070-1300.55 20ND50
1,2-Dichlorobenzene 2400 08/21/2014 211697250070-1301.8 20ND50
1,3-Dichlorobenzene 2400 08/21/2014 211697250070-1302.3 20ND50
1,4-Dichlorobenzene 2400 08/21/2014 211695250070-1303.4 20ND50
Dichlorodifluoromethane 2400 08/21/2014 211697250060-1406.7 20ND50
1,1-Dichloroethane 2500 08/21/2014 2116100250070-1301.9 20ND50
1,2-Dichloroethane 2700 08/21/2014 2116109250070-1302.3 20ND50
1,1-Dichloroethene 2700 08/21/2014 2116110250070-1301.8 20ND50
cis-1,2-Dichloroethene 2500 08/21/2014 211698250070-1301.0 20ND50
trans-1,2-Dichloroethene 2500 08/21/2014 2116101250070-1301.8 20ND50
1,2-Dichloropropane 2400 08/21/2014 211698250070-1300.89 20ND50
1,3-Dichloropropane 2400 08/21/2014 211696250070-1300.18 20ND50
2,2-Dichloropropane 2100 08/21/2014 211682250070-1303.3 20ND50
1,1-Dichloropropene 2500 08/21/2014 211699250070-1303.8 20ND50
cis-1,3-Dichloropropene 2400 08/21/2014 211697250070-1300.36 20ND50
trans-1,3-Dichloropropene 2400 08/21/2014 211697250070-1300.18 20ND50
Diisopropyl ether (IPE)2500 08/21/2014 2116100250070-1301.1 204650
Ethylbenzene 5400 08/21/2014 2116102250070-1303.2 20290050
Hexachlorobutadiene 2600 08/21/2014 2116103250070-1304.4 20ND50
Isopropylbenzene (Cumene)2600 08/21/2014 211699250070-1304.4 2016050
p-Isopropyltoluene (p-Cymene)2500 08/21/2014 2116100250070-1306.1 20ND50
Methyl tertiary butyl ether (MTBE)2400 08/21/2014 211693250070-1301.5 209950
Methylene chloride 2500 08/21/2014 2116100250070-1300.18 20ND50
Naphthalene 2900 08/21/2014 2116104250050-1402.4 2033050
n-Propylbenzene 2800 08/21/2014 211697250070-1304.8 2036050
Styrene 2600 08/21/2014 2116105250070-1301.8 20ND50
Note:Calculations are performed before rounding to avoid round-off errors in calculated results
PQL = Practical quantitation limit
ND = Not detected at or above the MDL
Where applicable, all soil sample analysis are reported on a dry weight basis unless flagged with a "W"
J = Estimated result < PQL and > MDL
N = Recovery is out of criteriaP = The RPD between two GC columns exceeds 40%
+ = RPD is out of criteria_
Page: 29 of 30
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.
Level 1 Report v2.1
Volatile Organic Compounds by GC/MS - MSD
Batch:Prep Method:
Sample ID:PH14008-007MD
54542 SM 6200B-2011
Analytical Method:SM 6200B-2011
Matrix:Aqueous
Parameter
Result
Q % Rec
Spike
Amount
Analysis Date% RPD
% Rec
Limit
% RPD
Limit
Sample
Amount
Dil(ug/L)(ug/L)(ug/L)
1,1,1,2-Tetrachloroethane 2500 08/21/2014 2116101250070-1300.45 20ND50
1,1,2,2-Tetrachloroethane 2300 08/21/2014 211691250070-1300.49 20ND50
Tetrachloroethene 2500 08/21/2014 2116100250070-1304.0 20ND50
Toluene 6100 08/21/2014 211698250070-1301.3 20360050
1,1,2-Trichloro-1,2,2-Trifluoroethane 3100 08/21/2014 2116125250070-1300.80 20ND50
1,2,3-Trichlorobenzene 2700 08/21/2014 2116108250070-1300.15 20ND50
1,2,4-Trichlorobenzene 2600 08/21/2014 2116104250070-1301.6 20ND50
1,1,1-Trichloroethane 2500 08/21/2014 2116102250070-1301.2 20ND50
1,1,2-Trichloroethane 2400 08/21/2014 211697250070-1300.97 20ND50
Trichloroethene 2500 08/21/2014 2116100250070-1302.7 20ND50
Trichlorofluoromethane 2500 08/21/2014 2116101250060-1405.5 20ND50
1,2,3-Trichloropropane 2200 08/21/2014 211690250070-1302.0 20ND50
1,3,5-Trimethylbenzene (Mesitylene)3100 08/21/2014 2116100250070-1304.9 2064050
1,2,4-Trimethylbenzene 4600 08/21/2014 211697250070-1303.3 20220050
Vinyl chloride 2500 08/21/2014 2116101250060-1402.5 20ND50
m+p - Xylenes 8500 08/21/2014 2116102250070-1302.1 20600050
o - Xylenes 5200 08/21/2014 211699250070-1302.6 20270050
Surrogate Q % Rec Acceptance
Limit
1,2-Dichloroethane-d4 95 70-130
Bromofluorobenzene 96 70-130
Toluene-d8 101 70-130
Note:Calculations are performed before rounding to avoid round-off errors in calculated results
PQL = Practical quantitation limit
ND = Not detected at or above the MDL
Where applicable, all soil sample analysis are reported on a dry weight basis unless flagged with a "W"
J = Estimated result < PQL and > MDL
N = Recovery is out of criteriaP = The RPD between two GC columns exceeds 40%
+ = RPD is out of criteria_
Page: 30 of 30
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.
Level 1 Report v2.1
SHEALY ENVIRONMENTAL SERVICES, INC.

106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.
Level 1 Report v2.1
SHEALY ENVIRONMENTAL SERVICES, INC.

106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.
Level 1 Report v2.1

APPENDIX B
PHOTOGRAPHS
Former Caraway Grocery
Asheboro, North Carolina
Terracon Project No. 70149641
Incident No. 24174
Date photographs taken: August 12, 2014

Photo #1 View of the site
Photo #2 View of the adjoining property to the north
Former Caraway Grocery
Asheboro, North Carolina
Terracon Project No. 70149641
Incident No. 24174
Date photographs taken: August 12, 2014

Photo #3 View of the adjoining residential property to the east with monitoring well MW-11

Photo #4 Former location of the 2,000-gallon gasoline USTs, 275-gallon gasoline UST, 270-
gallon kerosene UST, and 500-gallon kerosene AST
MW-11
Former Caraway Grocery
Asheboro, North Carolina
Terracon Project No. 70149641
Incident No. 24174
Date photographs taken: August 12, 2014

Photo #5 View of the southern portion of the site and adjoining property to the south
Photo #6 View of the adjoining property to the east
Former Caraway Grocery
Asheboro, North Carolina
Terracon Project No. 70149641
Incident No. 24174
Date photographs taken: August 12, 2014

Photo #7 View of the adjoining property to the west

APPENDIX C
Water Supply Well Map
(Pyramid Environmental & Engineering, P.C. dated
March 18, 2010)