MO-4523_14987_CA_MRP_20200331_Groundwater Monitoring Report

Irerracon
March 31, 2020
Mr. Jeff Walston
North Carolina Department of Transportation
Roadside Environmental Unit
1 South Wilmington Street
Raleigh, North Carolina 27601
Re: Groundwater Monitoring Report
Mt. Pleasant Maintenance Yard
150 Dutch Road
Mt. Pleasant, Cabarrus County, North Carolina
NCDEQ UST Section Incident No. 14987
Terracon Project No. 71177023
Dear Mr. Walston:
Terracon Consultants, Inc. (Terracon) is pleased to submit the attached groundwater
monitoring report for the above referenced site. This investigation was performed in general
accordance with the scope of services presented in Terracon's proposal dated May 14, 2019,
which meets the requirements of the Acknowledgement of Report Receipt from the North
Carolina Department of Environmental Quality (NCDEQ) dated January 21, 2020.
We appreciate the opportunity to be of service to you on this project. If there are any questions
regarding this report please do not hesitate to contact us.
Sincerely,
Terracon Consultants, Inc.
Flora J. D'Souza, CHMM
Senior Scientist
Attachments
Christollfier L. Corbitt, PG
Senior Geologist
Terracon Consultants, Inc. 2701 Westport Road Charlotte, North Carolina 28208
P [phone] F [phone] terracon.com

Groundwater Monitoring Report
Mt. Pleasant Maintenance Yard
Mt. Pleasant, Cabarrus County, North Carolina
March 31, 2020
Terracon Project No. 71177023
Prepared for:
North Carolina Department of Transportation
Raleigh, North Carolina
Prepared by:
Terracon Consultants, Inc.
Raleigh, North Carolina

Groundwater Monitoring Report
Mt. Pleasant Maintenance Yard
Mt. Pleasant, Cabarrus County, North Carolina
March 31, 2020
Terracon Project No. 71177023
Senior Geologist
Terracon Consultants, Inc. 2701 Westport Road Charlotte, North Carolina 28208
P [phone] F [phone] terracon.com

Groundwater Monitoring Report
NCDOT Mt. Pleasant Maintenance Yard
March 31, 2020 Terracon Project No. 71177023
TABLE OF CONTENTS
Irerracon
1.0 INTRODUCTION.............................................................................................................1
1.1
Site Description....................................................................................................1
1.2
Site Operational History.......................................................................................1
1.3
Site Investigation History......................................................................................2
1.4
Historical Receptor Information............................................................................2
1.5
Site Remedial History..........................................................................................2
1.6
Site Regulatory Status.........................................................................................3
1.7
Objectives and Scope of Work.............................................................................3
1.8
Standard of Care..................................................................................................3
1.9
Additional Scope Limitations................................................................................3
2.0 Receptor Information....................................................................................................4
2.1 Private Water Supply Wells..................................................................................4
2.2 Surface Water......................................................................................................4
2.3 Land Use and Places of Public Gathering............................................................4
3.0 FIELD ACTIVITIES AND METHODS..............................................................................4
3.1
Water Supply Well Sampling................................................................................5
3.2
Site Inspection and Well Network Evaluation
.......................................................5
3.3
Water Level Measurements.................................................................................5
3.4
Groundwater Sample Collection...........................................................................6
3.5
Sample Analysis..................................................................................................6
3.6
Quality Assurance/Quality Control Samples.........................................................6
4.0 RESULTS.......................................................................................................................7
4.1 Groundwater Flow System...................................................................................7
4.2 Groundwater Analytical Results...........................................................................7
4.3 Evaluation for Vapor Intrusion..............................................................................7
4.4 Quality Control.....................................................................................................8
4.5 Data Review and Validation.................................................................................8
5.0 FINDINGS AND RECOMMENDATIONS.........................................................................8
6.0 REFERENCES................................................................................................................9
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Groundwater Monitoring Report
NCDOT Mt. Pleasant Maintenance Yard Irerracon
March 31, 2020 Terracon Project No. 71177023
FIGURES
Figure 1. Topographic Map
Figure 2. Site Diagram
Figure 3. Receptor Survey Map
Figure 4. Shallow Groundwater Elevation Map
TABLES
Table 1. Water Supply Well Inventory
Table 2. Monitoring Well Construction Details and Water Level Elevations
Table 3. Geochemical Field Parameters in Monitoring Wells (February 2020)
Table 4. Summary of Groundwater Analytical Data
APPENDIX A Analytical Report and Chain of Custody Record
APPENDIX B Historical Groundwater Analysis Tables
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Groundwater Monitoring Report Irerracon
NCDOT Mt. Pleasant Maintenance Yard
March 31, 2020 Terracon Project No. 71177023
1.0 INTRODUCTION
Terracon has prepared this Groundwater Monitoring Report on behalf of the North Carolina
Department of Transportation (NCDOT) Roadside Environmental Unit. The report presents the
findings of recent field activities conducted by Terracon at the Mt. Pleasant Maintenance Facility
(the site), located at 150 Dutch Road in Mt. Pleasant, Cabarrus County, North Carolina (Figure 1).
1.1 Site Description
The site, traversed by Dutch Road, is currently occupied by the NCDOT Cabarrus County
Maintenance Yard. The site is primarily asphalt -paved with isolated lawn and landscaped areas.
Several buildings are located on the site including administrative offices, maintenance shops and
storage buildings. Various NCDOT machinery, vehicles and equipment are also staged at the site.
The surrounding area is primarily used for agricultural or developed as rural residential, although
the Cabarrus Correction Center is located on the adjacent property to the south of the site.
Topography at the site slopes gently downward to the west towards Dutch Buffalo Creek which is
located along the western property boundary.
1.2 Site Operational History
The site is currently occupied by the NCDOT Mt. Pleasant Maintenance Yard. Dating back to 1958,
12 underground petroleum storage tanks (USTs) have been maintained at the site. The USTs have
contained gasoline, diesel, kerosene, or waste oil. Nine (9) of the USTs have been removed from
the site, while three (3) remain in -place and are currently active. The following table provides
details regarding the current and former on -site USTs.
UST ID
Size (gallons)
Contents
Date Installed
Date Removed
1
3,000
Waste oil
09/26/1969
02/14/1990
2
275
Kerosene
09/29/1958
02/14/1990
3
2,000
Kerosene
09/29/1958
02/14/1990
4
2,000
Gasoline
09/29/1958
02/14/1990
5
6,000
Gasoline
08/30/1970
02/23/1990
6
10,000
Gasoline
1972?
03/28/1991
7
10,000
Gasoline
08/29/1972
03/28/1991
8
10,000
Diesel
08/29/1973
03/28/1991
9
2,000
Waste oil
October 1989
05/31/2005
10
10,000
Gasoline
02/14/1990
Currently in use
11
10,000
Diesel
02/14/1990
Currently in use
12
2,000
Waste oil
02/14/1990
Currently in use
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Groundwater Monitoring Report Irerracon
NCDOT ■ Mt. Pleasant Maintenance Yard
March 31, 2020 ■ Terracon Project No. 71177023
1.3 Site Investigation History
The site was initially investigated in May 1992 when three (3) monitoring wells were installed
following the removal of USTs 1 through 8 in 1990 and 1991. Additional data regarding the
identification, location, or analytical results associated with these wells was not available in the
North Carolina Department of Environmental Quality (NCDEQ) incident file for the site.
Thirteen (13) monitoring wells (MW-1 through MW-10 and TP-1 through TP-3) were reportedly
located at the site (ECS, 1997). Based on calculated elevations from the on -site wells, groundwater
flows to the north. Petroleum constituent concentrations are known to have historically been
identified in monitoring wells MW-2, MW-4, MW-6, MW-7, MW-8 and MW-9. Free product was
historically measured in monitoring well MW-6 (1.5 inches on November 14, 1996 [ECS, 1997]).
Naphthalene was detected at a concentration of 197 micrograms per liter (pg/L) during the
November 22, 1996 sampling event (ECS, 1997).
Residual soil contamination was reported in the vicinity of USTs 1 and 5 (ECS, 1997). The most
recent UST investigation occurred in 2005 during the removal of UST 9 (2,000-gallon waste oil
UST); however, no soils were removed during the UST closure activities for UST 9.
1.4 Historical Receptor Information
Subsurface utilities consisting of water, sewer and stormwater drain lines are present at the site,
generally buried at depths to 3 feet below land surface (bls). Existing on -site buildings are
constructed as slab -on -grade; thus, crawlspaces are not present beneath the buildings.
The closest surface water feature is Dutch Buffalo Creek, which is located near the western
property boundary. Historically, seven (7) water supply wells were identified within 1,500 feet of
the source area (ECS, 1997). Currently, municipal water is available to the site and surrounding
properties by the Town of Mt. Pleasant.
1.5 Site Remedial History
Remedial activities at the site have been limited to the removal of USTs and over -excavation of
soils near the USTs. USTs 1 through 8 were removed in 1990 and 1991. Approximately 185 cubic
yards of soil were reportedly removed and spread on the site with approval from the NCDEQ. The
on -site location of the spread soils is unknown. Soils were not excavated during the removal of
UST 9 in 2005.
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Groundwater Monitoring Report Irerracon
NCDOT ■ Mt. Pleasant Maintenance Yard
March 31, 2020 ■ Terracon Project No. 71177023
1.6 Site Regulatory Status
The NCDEQ issued a Notice of Regulatory Requirements (NORR) as a result of the site's "High"
risk ranking (NCDEQ 2020). The NORR required semi-annual groundwater sampling events in
February and August 2020 and the submittal of a groundwater monitoring report to the NCDEQ for
the February sampling event by March 31, 2020.
1.7 Objectives and Scope of Work
The objective of the scope of work was to monitor the dissolved phase plume conditions in the
groundwater at the site and sample nearby water supply wells for potential impacts. The report
contains a summary of the following activities and results:
■ sampling of the existing monitoring well network;
■ sampling of supply wells within 1,000 feet of the source area; and
■ recommendations for future site activities.
1.8 Standard of Care
Terracon's services were performed in a manner consistent with generally accepted practices of
the profession undertaken in similar studies in the same geographical area during the same time
period. Terracon makes no warranties, either expressed or implied, regarding the findings,
conclusions, or recommendations. Please note that Terracon does not warrant the work of
laboratories, regulatory agencies, or other third parties supplying information used in the
preparation of the report. These services were performed in accordance with the scope of work
authorized by our client, as reflected in our proposal.
1.9 Additional Scope Limitations
Findings, conclusions, and recommendations resulting from these services are based upon
information derived from the on -site activities and other services performed under this scope of
work, such information is subject to change over time. Subsurface conditions may vary from those
encountered at specific borings or wells or during other surveys, tests, assessments,
investigations, or exploratory services; thus, the data, interpretations, findings, and our
recommendations are based solely upon data obtained at the time and within the scope of these
services.
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Groundwater Monitoring Report Irerracon
NCDOT ■ Mt. Pleasant Maintenance Yard
March 31, 2020 ■ Terracon Project No. 71177023
2.0 RECEPTOR INFORMATION
2.1 Private Water Supply Wells
Terracon conducted a windshield survey on February 3, 2017 to locate water supply wells within
a 1,500-foot radius of the site boundary. During the visual reconnaissance, properties were
assumed to maintain a water supply well if a wellhead cover was observed, such as faux rock, well
house or ornamental `wishing well' style structures. Based on our observations, Terracon identified
two (2) water supply wells (WSW-2 and WSW-3) within a 1,000-foot radius of the site and four (4)
water supply wells (WSW-1, WSW-4, WSW-5 and WSW-6) between 1,000 feet and 1,500 feet of
the site. Well survey results are summarized on Table 1 and are depicted on Figure 3.
Terracon also contacted the Town of Mt. Pleasant Water and Sewer Department to determine if
developed properties identified within a 1,500-foot radius of the site had a water usage account.
Based on information provided by Ms. Amy Schueneman of the Town of Mt. Pleasant, the six
properties with observed water supply wells are not connected to municipal water. Property
owners located greater than 1,000 feet from the site were not directly contacted nor were water
supply well questionnaires issued to the property owners. As such, the use of each suspected well
(potable water or irrigation) located greater than 1,000 feet from the site was not confirmed.
2.2 Surface Water
The site is located within the Yadkin -Pee Dee River Basin. Dutch Buffalo Creek is located
approximately 300 feet to the west of the source area and a pond is located approximately 400
feet to the north of the source area. Surface water runoff at the site generally flows to the west
towards Dutch Buffalo Creek. Surface water features are depicted on Figure 1 from a portion of
the Mount Pleasant, NC 7.5-Minute Topographic Quadrangle Map.
2.3 Land Use and Places of Public Gathering
Terracon did not identify properties considered places of public gathering within 1,500 feet of the
site. According to the Cabarrus County GIS database, land use within 1,500 feet of the site is
primarily residential and agricultural, although the Cabarrus Correction Center is located on the
adjacent property to the south of the site.
3.0 FIELD ACTIVITIES AND METHODS
Sampling activities were conducted in general accordance with the requirements listed in the
NORR (2020). Field activities conducted during the February 2020 sampling event included
measuring water levels in the wells to calculate groundwater elevations, collect groundwater
samples from 10 on -site monitoring wells, and attempt to collect a groundwater sample from water
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Groundwater Monitoring Report
NCDOT Mt. Pleasant Maintenance Yard
March 31, 2020 Terracon Project No. 71177023
Irerracon
supply well WSW-2 located to the north of the site. The locations of the monitoring wells are shown
on Figure 2.
3.1 Water Supply Well Sampling
Terracon was unable to collect a water sample from water supply well WSW-2 during the February
2020 sampling event. Terracon staff knocked on the door of the residence for well WSW-2;
however, no one was present to authorize sampling of the well.
3.2 Site Inspection and Well Network Evaluation
Terracon conducted an inspection of the on -site monitoring wells. Monitoring well construction
details are provided on Table 2. Our well observations are summarized below:
Wells MW-2, MW-3, MW-4 and TP-3 could not be located and were likely paved over based
on information gathered from discussions with NCDOT employees at the site office. Based
on available historical documents, these wells were last located in 1996.
Monitoring well MW-6 was not able to be sampled. The well appears to be constructed of
corrugated plastic pipe and the well is not vertical. Well MW-6 bends at approximately
three feet below grade which prevented the purging and sampling of the well.
New monitoring wells MW-4R and MW-6R were installed on November 3, 2017 to replace
wells MW-4 and MW-6.
The remaining wells were in good condition.
During the February 2020 groundwater sampling event, water level measurements and
groundwater samples were obtained from the following monitoring wells.
Shallow monitoring wells:
MW-1
MW-4R
MW-5
Deep monitoring well:
MW-10
3.3 Water Level Measurements
MW-6R MW-9
MW-7 TP-1
MW-8 TP-2
Water level measurements were collected from accessible site monitoring wells on February 25,
2020 to estimate the groundwater flow direction and vertical hydraulic gradient. The water levels
were measured with an electronic water level probe that was decontaminated before and after use
in each well. The water level measurements were converted to water level elevations using existing
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Groundwater Monitoring Report Irerracon
NCDOT ■ Mt. Pleasant Maintenance Yard
March 31, 2020 ■ Terracon Project No. 71177023
top -of -casing elevation data for each well (Table 2). The water level elevations were used to
prepare a water level contour map to estimate the shallow groundwater flow direction at the site,
as discussed in Section 4.1 of this report.
3.4 Groundwater Sample Collection
Groundwater samples were collected using a peristaltic pump. Low flow purging and sampling
techniques were used to the extent practical for each well. During purging, the following field
geochemical parameters (temperature, pH, conductivity, dissolved oxygen (DO) and oxidation-
reduction potential [ORP]) were measured using a handheld YSI 556 multi -parameter probe unit.
Purging continued until the field parameters stabilized. Table 3 summarizes indicator parameter
measurements of temperature, pH, specific conductance, DO and ORP.
Sampling equipment was thoroughly decontaminated with phosphate -free soap and distilled water
prior to fieldwork and between use in each well to prevent cross -contamination. New polyethylene
tubing was used during the purging and sampling of each monitoring well. Decontamination water
and purge water was poured onto the land surface in accordance with NCDEQ guidelines.
3.5 Sample Analysis
Once collected, the groundwater samples were placed in appropriately labeled containers and
packed on ice pending delivery to Pace Analytical Services, LLC (Pace). Water samples collected
in the field remained in the presence of a project representative until the samples were picked up
by Pace personnel and delivered to the laboratory in Huntersville, North Carolina. A completed
chain -of -custody record was provided with the cooler containing groundwater samples.
The following analytical methods were requested on the chain -of -custody for the February 2020
sampling event:
■ Volatile organic compounds (VOCs) by EPA Method 8260,
■ Semi -volatile organic compounds (SVOCs) by EPA Method 8270, and
■ Extractable petroleum hydrocarbons (EPH) and volatile petroleum hydrocarbons (VPH) by
MADEP Methods.
3.6 Quality Assurance/Quality Control Samples
The quality assurance/quality control (QA/QC) sampling included one trip blank. The QA/QC
sample was submitted to the laboratory for analysis of VOCs by EPA Method 8260.
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Groundwater Monitoring Report Irerracon
NCDOT ■ Mt. Pleasant Maintenance Yard
March 31, 2020 ■ Terracon Project No. 71177023
4.0 RESULTS
Field and laboratory analytical results from the soil and groundwater sampling events conducted
in February 2020 are discussed below. Laboratory analytical reports from Pace were reviewed and
validated to ensure that they met specific data -quality objectives. Laboratory analytical results are
provided in Appendix A.
4.1 Groundwater Flow System
Water level measurements were collected from the on -site monitoring wells on February 25, 2020.
The depth -to -water measurements and the converted water level elevations are listed in Table 2.
Depth to water measurements for the shallow wells (10 to 15 feet bls) ranged from approximately
2.07 (MW-6R) to 5.88 (MW-4R) feet bls.
Water elevations were used to produce a potentiometric surface elevation map for the shallow
wells (Figure 4). Based on the water level measurements collected in February 2020, the
groundwater flow direction in the shallow aquifer zone appears directed to the north.
The groundwater flow direction is generally consistent with historical site data. Shallow
groundwater had a vertical hydraulic gradient of approximately 0.023 feet per foot (ft/ft).
4.2 Groundwater Analytical Results
Laboratory analytical results and field parameter results from the February 2020 sampling event
are described below. Constituent concentrations in groundwater are presented in Table 4.
Groundwater analytical results for VOCs, SVOCs, EPH and VPH were compared with their 15A
NCAC 2L groundwater quality standards (2L standards).
4.2.1 Monitoring Well Network
Groundwater samples were collected from 10 permanent monitoring wells on February 25, 2020.
Constituent concentrations detected from the monitoring well network are presented in Table 4.
4.3 Evaluation for Vapor Intrusion
Based on the Interstate Technology and Regulatory Council (ITRC) Petroleum Vapor Intrusion
(PVI) guidance, additional evaluation of the PVI pathway for the dissolved -phase plume is not
warranted. The on -site buildings are not likely at potential risk for PVI based on the constituent
concentration data for groundwater compared to the NCDEQ Vapor Intrusion Screening Levels
(VISLs).
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Groundwater Monitoring Report Irerracon
NCDOT ■ Mt. Pleasant Maintenance Yard
March 31, 2020 ■ Terracon Project No. 71177023
4.4 Quality Control
The trip blank sample did not contain VOCs at concentrations above the laboratory method
detection limits as shown in the laboratory analytical report (Appendix A).
4.5 Data Review and Validation
This section provides an evaluation of the laboratory analytical data for the completeness of data
package deliverables. Additionally, field data were reviewed to verify completion of required
documentation. Quality control data are provided in the laboratory analytical report (Appendix A).
Field activities were documented on groundwater sampling logs. Groundwater samples were
appropriately labeled, stored in sample containers on ice, and delivered to Pace in good condition
and properly preserved. The sample container chain -of -custody forms were forwarded with the
samples to the analytical laboratory.
The samples were analyzed for the parameters listed in Section 3.5. For the February 2020
sampling event, one trip blank accompanied the cooler sent to the laboratory for analysis of VOCs
by EPA Method 8260. VOCs were not detected in the trip blank.
5.0 FINDINGS AND RECOMMENDATIONS
The findings of this report are summarized below:
■ Groundwater in the shallow aquifer (2.07 to 5.88 feet bls) is estimated to flow to the north;
■ Constituents were not detected above the 2L Standards in the monitoring wells at the site;
■ Terracon was unable to collect a sample from water supply well WSW-2 during the
February 2020 sampling event.
■ The on -site buildings are not likely impacted by vapor intrusion based on the detected
constituent concentrations in the groundwater compared to the NCDEQ VISLs.
Based on the current and historical results, Terracon offers the following recommendations:
■ Conduct one (1) additional sampling event of the on -site monitoring well network. If
constituent concentrations remain the below 2L Standards, Terracon will request closure
of the release incident at the site.
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Groundwater Monitoring Report Irerracon
NCDOT ■ Mt. Pleasant Maintenance Yard
March 31, 2020 ■ Terracon Project No. 71177023
6.0 REFERENCES
ECS, 1997. Engineering Consulting Services, Ltd (ECS). "Comprehensive Site Assessment -
North Carolina Department of Transportation Cabarrus County Maintenance Yard." January 24,
1997.
NCDENR, 2010. North Carolina Administrative Code. "North Carolina's Groundwater Quality
Standards", Title 15A, Chapter 2L. Revised April 1, 2013.
NCDEQ, 2018. Underground Storage Tank Section, Division of Waste Management. "Notice of
Regulatory Requirements". Letter prepared for NCDOT Roadside Environmental Unit. September
13, 2018.
NCDEQ, 2019. UST Section, DWM. "Acknowledgement of Report Receipt". Letter prepared for
NCDOT Roadside Environmental Unit. February 5, 2019.
NCDEQ, 2020. UST Section, DWM. "Acknowledgement of Report Receipt". Letter prepared for
NCDOT Roadside Environmental Unit. January 21, 2020.
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Table 2
Monitoring Well Construction Details and Water Level Elevations
Mt. Pleasant Maintenance Yard
Mt. Pleasant, Cabarrus County, NC
Terracon Project No. 71177023
Well ID
Date Installed
(mm/dd/W)
Well Diameter
(in)
Screen Interval
(ft his)
Top -of -Casing
Elevation* (ft)
Date Measured
(mm/dd/yy)
Total Depth
(ft bls)
Depth to
Water (ft
bTOC)
Groundwater
Elevation (ft)
Casing
Mount
Well Status
SURFICIAL MONITORING WELLS
MW-1
05/13/92-05/15/92
2
4.5 -14.5
103.18
O1/25/17
15.0
5.0
98.18
flush
Active
11/02/17
8.0
95.22
05/30/18
6.7
96.48
11/14/18
5.48
97.70
08/14/19
7.91
95.27
02/25/20
5.71
97.47
MW-2
05/13/92 - 05/15/92
2
4.5-14.5
101.69
NM
15.6
NM
NM
flush
Destroyed/Paved Over
MW-3
05/13/92 - 05/15/92
2
5.0-15.0
99.47
NM
15.5
NM
NM
flush
Destroyed/Paved Over
MW-4
10/19/1992
2
4.0-14.0
102.77
NM
15.3
NM
NM
flush
Destroyed/Paved Over
MW-4R
11/6/2017
2
4.65-14.65
NS
11/06/17
14.7
6.71
NM
flush
Active
05/30/18
6.47
NM
11/14/18
4.76
NM
08/14/19
6.57
NM
02/25/20
5.88
NM
M W-5
10/19/1992
2
4.0 - 14.0
100
O1/25/17
15.2
4.79
95.21
flush
Active
11/02/17
6.11
93.89
05/30/18
5.34
94.66
11/14/18
4 42
95.58
08/14/19
5.79
94.21
02/25/20
4.91
95.09
MW-6
10/19/1992
2
4.0-14.0
104.54
NM
15.3
NM
NM
flush
Damaged
MW-6R
11/6/2017
2
5.16-15.16
NS
11/06/17
15.16
5.55
NM
flush
Active
05/30/18
4.42
NM
11/14/18
3.91
NM
O8/14/19
3.75
NM
02/25/20
2.07
NM
MW-7
11/12/96- 11/13/96
2
5.0 -10.0
105.21
O1/25/17
10.0
5.14
100.07
flush
Active
11/02/17
6.79
98.42
05/30/18
6.18
99.03
11/14/18
5.37
gg 84
08/14/19
6.48
98.73
02/25/20
5.68
99.53
MW-8
11/12/96- 11/13/96
2
5.0 -10.0
105.67
O1/25/17
10.0
3.49
102.18
flush
Active
11/02/17
6.06
99.61
05/30/18
4.52
101.15
11/14/18
3.3
102.37
08/14/19
4.87
100.80
02/25/20
3.44
102.23
MW-9
11/12/96- 11/13/96
2
5.0 -10.0
104.1
O1/25/17
10.0
3.19
100.91
flush
Active
11/02/17
4.35
99.75
05/30/18
3.21
.8
1000.999
11/14/18
3.11
10
O8/14/19
3.60
100.50
02/25/20
3.14
100.96
TP-1
Unknown
4
Unknown
Unknown
O1/25/17
11.75
3.44
NM
flush
Active
11/02/17
5.49
NM
05/30/18
4.12
NM
11/14/18
3.11
NM
O8/14/19
5.10
NM
02/25/20
4.24
NM
TP-2
Unknown
4
Unknown
Unknown
O1/25/17
11.0
4.44
NM
flush
Active
11/02/17
6.38
NM
05/30/18
5.02
NM
11/14/18
402
NM
O8/14/19
6.07
NM
02/25/20
5.20
NM
TP-3
Unknown
Unknown
Unknown
105.39
NM
Unknown
NM
NM
flush
Destroyed/Paved Over
DEEP MONITORING WELL
MW-10
11/12/96- 11/13/96
2
72.5 -92.5
103.79
01/25/17
92.5
5.01
98.78
flush
Active
05/30/18
3.55
100.24
11/14/18
2.42
101.37
08/14/19
4.55
99.24
02/25/20
3.10
100.69
NOTES:
*Top of casing elevation based on an assumed datum of 100 feet.
Monitoring wells MW-2, MW-3, MW-4 and TP-3 have not been located and are presumed destroyed.
Monitoring wells MW-4R and MW-6R were installed on 11/2/17 to replace wells MW-4 and MW-6 and have not been surveyed.
ft bTOC = feet below top of casing
ft bls = feet below land surface
in = inches
NM = Not Measured
NS = Not Surveyed

Table 3
Geochemical Field Parameters in Monitoring Wells (February 2020)
Mt. Pleasant Maintenance Yard
150 Dutch Road
Mt. Pleasant, Cabarrus County, North Carolina
Terracon Project No. 71177023
Field Parameter
(units)
Conductivity
(µS/cm)
Dissolved Oxygen
(mg/L)
ORP
(mv)
pH
(SU)
Temperature
(C )
Sample ID
Sample Date
MW-1
02/25/20
824
0.29
163.3
6.81
19.4
MW-4R
02/25/20
633
0.80
156.5
6.23
19.5
MW-5
02/25/20
1,537
0.20
-46.3
6.84
17.9
MW-6R
02/25/20
196.2
0.22
-6.3
6.42
17.8
MW-7
02/25/20
401.4
2.92
151.7
6.66
17.7
MW-8
02/25/20
740
1.56
16.3
6.61
16.5
MW-9
02/25/20
255.7
0.26
-15.9
6.41
17.9
MW-10
02/25/20
804
3.90
176.6
5.72
19.5
TP-1
02/25/20
300
1.33
185.5
6.41
15.7
TP-2
02/25/20
181
3.66
236.2
6.74
14.9
NOTES:
µS/cm = microsiemens per centimeter
mg/L = micrograms per liter
my = millivolts
SU = Standard Units
C = degrees celsius

III
INS
II
IIII
IIIII
IIIII
III
IIII
II
IIII
IIIII
II�II
III
III
II
IIII
IIIII
II�II
III
IIII
INS
INS

APPENDIX A
Analytical Reports and Chain of Custody Records

aceAnalytical
,/--
Report of Analysis
Terracon Consultants, Inc.
2701 Westport Road
Charlotte, NC 28208
Attention: Flora D'Souza
Project Name: Mt. Pleasant DOT
Project Number: 71177023
Lot Number:VB26118
Date Completed:03/10/2020
03/10/2020 3:58 PM
Approved and released by:
Project Manager: Cathy S. Dover
ypQ P� FO
4
ARM24r
e
ANSI National Accreditation Board
A C C R E D I T E D
TESTING LABORATORY
The electronic signature above is the equivalent of a handwritten signature.
This report shall not be reproduced, except in its entirety, without the written approval of Pace Analytical Services, LLC.
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172
Tel:[phone] Fax:[phone] www.pacelabs.com
Page 1 of 131

PACE ANALYTICAL SERVICES, LLC
SC DHEC No: 32010001 NELAC No: E87653 NC DENR No: 329 NC Field Parameters No: 5639
Case Narrative
Terracon Consultants, Inc.
Lot Number: VB26118
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 Pace Analytical Services, LLC ("Pace") Quality Assurance
Management Plan (QAMP), standard operating procedures (SOPS), and Pace policies. Any exceptions to
the NELAC standards, the QAMP, SOPS or policies are qualified on the results page or discussed below.
VOA 8260D
Insufficient sample volume was provided to perform matrix spike/matrix spike duplicate (MS/MSD) for
analytical batch 46930. An LCS/LCSD was run in lieu of an MS/MSD.
SVOA 8270E
The SVOA MS/MSD associated with batch 46578 and parent sample VB26118-006 (MW-6R) had two
analytes (4,6-Dinitro-2-methylphenol & 2,4-Dinitrotoluene) that recovered marginally biased high outside
of acceptance range. The parent sample was non -detect for these two analytes and the associated LCS
passed all acceptance criteria.
EPH
All samples were extracted as "unfractionated" except for VB26118-006 (MW-6R), VB26118-008 (MW-8)
and VB26118-009 (MW-9). These three samples required fractionation in order to have a good EPH
analysis.
If you have any questions regarding this report please contact the Pace Project Manager listed on the
cover page.
Pace Analytical Services, LLC (formerly Shealy Environmetal Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 2 of 131

PACE ANALYTICAL SERVICES, LLC
Sample Summary
Terracon Consultants, Inc.
Lot Number: VB26118
Project Name: Mt. Pleasant DOT
Project Number: 71177023
Sample Number
Sample ID
Matrix
Date Sampled
Date Received
001
TIP-1
Aqueous
02/25/20201125
02/26/2020
002
TIP-2
Aqueous
02/25/20201105
02/26/2020
003
MW-1
Aqueous
02/25/20201205
02/26/2020
004
MW-4R
Aqueous
02/25/20201350
02/26/2020
005
MW-5
Aqueous
02/25/20201300
02/26/2020
006
MW-6R
Aqueous
02/25/20201445
02/26/2020
007
MW-7
Aqueous
02/25/20201225
02/26/2020
008
MW-8
Aqueous
02/25/20201355
02/26/2020
009
MW-9
Aqueous
02/25/20201540
02/26/2020
010
MW-10
Aqueous
02/25/20201450
02/26/2020
015
TB1
Aqueous
02/25/2020
02/26/2020
016
TB2
Aqueous
02/25/2020
02/26/2020
(12 samples)
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 3 of 131

PACE ANALYTICAL SERVICES, LLC
Detection Summary
Terracon Consultants, Inc.
Lot Number: VB26118
Project Name: Mt. Pleasant DOT
Project Number: 71177023
Sample Sample ID
Matrix
Parameter
Method
Result
Q
Units
Page
003
MW-1
Aqueous
bis(2-Ethylhexyl)phthalate
8270E
2.6
J
ug/L
24
006
MW-6R
Aqueous
Acenaphthene
8270E
0.29
J
ug/L
48
006
MW-6R
Aqueous
C9 - C12 Aliphatics
MADEP-VPH-
31
J
ug/L
52
006
MW-6R
Aqueous
C9 - C10 Aromatics
MADEP-VPH-
38
ug/L
53
008
MW-8
Aqueous
Methyl tertiary butyl ether
8260D
2.9
ug/L
62
009
MW-9
Aqueous
Acetone
8260D
8.4
J
ug/L
70
009
MW-9
Aqueous
Cyclohexane
8260D
1.3
ug/L
70
009
MW-9
Aqueous
Isopropyl benzene
8260D
1.5
ug/L
70
009
MW-9
Aqueous
Methylcyclohexane
8260D
2.2
J
ug/L
70
009
MW-9
Aqueous
Acenaphthene
8270E
1.1
ug/L
72
009
MW-9
Aqueous
Fluorene
8270E
1.3
ug/L
72
009
MW-9
Aqueous
C5 - C8 Aliphatics
MADEP-VPH-
52
J
ug/L
76
009
MW-9
Aqueous
C9 - C12 Aliphatics
MADEP-VPH-
90
ug/L
76
009
MW-9
Aqueous
C9 - C10 Aromatics
MADEP-VPH-
84
ug/L
77
(14 detections)
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 4 of 131

Volatile Organic Compounds by GC/MS
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-001
Description: TP-1 Matrix: Aqueous
Date Sampled:02/25/2020 1125 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method
Dilution Analysis Date Analyst
Prep Date
Batch
1 5030B 8260D
1 02/29/20201921 STM
46516
CAS
Analytical
Parameter
Number
Method
Result Q
LOQ
DL
Units
Run
Acetone
67-64-1
8260D
ND
10
4.0
ug/L
1
Benzene
71-43-2
8260D
ND
0.50
0.40
ug/L
1
Bromodichloromethane
75-27-4
8260D
ND
0.50
0.40
ug/L
1
Bromoform
75-25-2
8260D
ND
0.50
0.40
ug/L
1
Bromomethane (Methyl bromide)
74-83-9
8260D
ND
0.50
0.40
ug/L
1
2-Butanone (MEK)
78-93-3
8260D
ND
10
2.0
ug/L
1
Carbon disulfide
75-15-0
8260D
ND
0.50
0.40
ug/L
1
Carbon tetrachloride
56-23-5
8260D
ND
0.50
0.40
ug/L
1
Chlorobenzene
108-90-7
8260D
ND
0.50
0.40
ug/L
1
Chloroethane
75-00-3
8260D
ND
0.50
0.40
ug/L
1
Chloroform
67-66-3
8260D
ND
0.50
0.40
ug/L
1
Chloromethane (Methyl chloride)
74-87-3
8260D
ND
0.50
0.40
ug/L
1
Cyclohexane
110-82-7
8260D
ND
0.50
0.40
ug/L
1
1,2-Dibromo-3-chloropropane (DBCP)
96-12-8
8260D
ND
0.50
0.40
ug/L
1
Dibromochloromethane
124-48-1
8260D
ND
0.50
0.40
ug/L
1
1,2-Dibromoethane (EDB)
106-93-4
8260D
ND
0.50
0.40
ug/L
1
1,2-Dichlorobenzene
95-50-1
8260D
ND
0.50
0.40
ug/L
1
1,3-Dichlorobenzene
541-73-1
8260D
ND
0.50
0.40
ug/L
1
1,4-Dichlorobenzene
106-46-7
8260D
ND
0.50
0.40
ug/L
1
Dichlorodifluoromethane
75-71-8
8260D
ND
0.50
0.40
ug/L
1
1,1-Dichloroethane
75-34-3
8260D
ND
0.50
0.40
ug/L
1
1,2-Dichloroethane
107-06-2
8260D
ND
0.50
0.40
ug/L
1
1, 1 -Dichloroethene
75-35-4
8260D
ND
0.50
0.40
ug/L
1
cis- 1,2-Dichloroethene
156-59-2
8260D
ND
0.50
0.40
ug/L
1
trans-1,2-Dichloroethene
156-60-5
8260D
ND
0.50
0.40
ug/L
1
1,2-Dichloropropane
78-87-5
8260D
ND
0.50
0.40
ug/L
1
cis- 1,3-Dichloropropene
10061-01-5
8260D
ND
0.50
0.40
ug/L
1
trans-1,3-Dichloropropene
10061-02-6
8260D
ND
0.50
0.40
ug/L
1
Ethylbenzene
100-41-4
8260D
ND
0.50
0.40
ug/L
1
2-Hexanone
591-78-6
8260D
ND
10
2.0
ug/L
1
Isopropylbenzene
98-82-8
8260D
ND
0.50
0.40
ug/L
1
Methyl acetate
79-20-9
8260D
ND
1.0
0.40
ug/L
1
Methyl tertiary butyl ether (MTBE)
1634-04-4
8260D
ND
0.50
0.40
ug/L
1
4-Methyl-2-pentanone
108-10-1
8260D
ND
10
2.0
ug/L
1
Methylcyclohexane
108-87-2
8260D
ND
5.0
0.40
ug/L
1
Methylene chloride
75-09-2
8260D
ND
0.50
0.40
ug/L
1
Styrene
100-42-5
8260D
ND
0.50
0.41
ug/L
1
1,1,2,2-Tetrachloroethane
79-34-5
8260D
ND
0.50
0.40
ug/L
1
Tetrachloroethene
127-18-4
8260D
ND
0.50
0.40
ug/L
1
Toluene
108-88-3
8260D
ND
0.50
0.40
ug/L
1
1,1,2-Trichloro-1,2,2-Trifluoroethane
76-13-1
8260D
ND
1.0
0.42
ug/L
1
1,2,4-Trichlorobenzene
120-82-1
8260D
ND
0.50
0.40
ug/L
1
1,1,1-Trichloroethane
71-55-6
8260D
ND
0.50
0.40
ug/L
1
1,1,2-Trichloroethane
79-00-5
8260D
ND
0.50
0.40
ug/L
1
LOQ = Limit of Quantitation B = Detected in the method blank
E = Quantitation of
compound exceeded the calibration range
DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria
P = The RPD between two GC columns exceeds 40 %
J = Estimated result <
LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 5 of 131

Volatile Organic Compounds by GC/MS
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-001
Description: TP-1 Matrix: Aqueous
Date Sampled:02/25/2020 1125 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 5030B 8260D 1 02/29/20201921 STM 46516
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
Trichloroethene
79-01-6
8260D
ND
0.50
0.40
ug/L
1
Trichlorofluoromethane
75-69-4
8260D
ND
0.50
0.40
ug/L
1
Vinyl chloride
75-01-4
8260D
ND
0.50
0.40
ug/L
1
Xylenes (total)
1330-20-7
8260D
ND
1.0
0.40
ug/L
1
Run 1 Acceptance
Surrogate
Q % Recovery Limits
Bromofluorobenzene
1,2-Dichloroethane-d4
Toluene-d8
98 70-130
89 70-130
107 70-130
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 6 of 131

Semivolatile Organic Compounds by GC/MS
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-001
Description: TP-1 Matrix: Aqueous
Date Sampled:02/25/2020 1125 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method
Analytical Method
Dilution Analysis Date Analyst
Prep Date
Batch
1 3520C
8270E
1 03/04/2020 1452 JCG
03/02/2020 1316 46578
CAS
Analytical
Parameter
Number
Method
Result Q
LOQ
DL
Units
Run
Acenaphthene
83-32-9
8270E
ND
0.80
0.20
ug/L
1
Acenaphthylene
208-96-8
8270E
ND
0.80
0.20
ug/L
1
Acetophenone
98-86-2
8270E
ND
4.0
0.50
ug/L
1
Anthracene
120-12-7
8270E
ND
0.80
0.20
ug/L
1
Atrazine
1912-24-9
8270E
ND
4.0
0.50
ug/L
1
Benzaldehyde
100-52-7
8270E
ND
8.0
0.50
ug/L
1
Benzo(a)anthracene
56-55-3
8270E
ND
0.80
0.20
ug/L
1
Benzo(a)pyrene
50-32-8
8270E
ND
0.80
0.20
ug/L
1
Benzo(b)fluoranthene
205-99-2
8270E
ND
0.80
0.20
ug/L
1
Benzo(g,h,i)perylene
191-24-2
8270E
ND
0.80
0.20
ug/L
1
Benzo(k)fluoranthene
207-08-9
8270E
ND
0.80
0.20
ug/L
1
1,1'-Biphenyl
92-52-4
8270E
ND
4.0
0.50
ug/L
1
4-Bromophenyl phenyl ether
101-55-3
8270E
ND
4.0
0.50
ug/L
1
Butyl benzyl phthalate
85-68-7
8270E
ND
4.0
0.50
ug/L
1
Caprolactam
105-60-2
8270E
ND
8.0
1.0
ug/L
1
Carbazole
86-74-8
8270E
ND
4.0
0.50
ug/L
1
bis (2-Chloro-1-methylethyl) ether
108-60-1
8270E
ND
4.0
0.50
ug/L
1
4-Chloro-3-methyl phenol
59-50-7
8270E
ND
4.0
0.50
ug/L
1
4-Chloroaniline
106-47-8
8270E
ND
8.0
0.50
ug/L
1
bis(2-Chloroethoxy)methane
111-91-1
8270E
ND
4.0
0.50
ug/L
1
bis(2-Chloroethyl)ether
111-44-4
8270E
ND
4.0
0.50
ug/L
1
2-Chloronaphthalene
91-58-7
8270E
ND
4.0
0.50
ug/L
1
2-Chlorophenol
95-57-8
8270E
ND
4.0
0.50
ug/L
1
4-Chlorophenyl phenyl ether
7005-72-3
8270E
ND
4.0
0.50
ug/L
1
Chrysene
218-01-9
8270E
ND
0.80
0.20
ug/L
1
Dibenzo(a,h)anthracene
53-70-3
8270E
ND
0.80
0.20
ug/L
1
Dibenzofuran
132-64-9
8270E
ND
4.0
0.50
ug/L
1
3,3'-Dichlorobenzidine
91-94-1
8270E
ND
4.0
1.8
ug/L
1
2,4-Dichlorophenol
120-83-2
8270E
ND
8.0
1.0
ug/L
1
Diethylphthalate
84-66-2
8270E
ND
4.0
0.50
ug/L
1
Dimethyl phthalate
131-11-3
8270E
ND
4.0
0.50
ug/L
1
2,4-Dimethylphenol
105-67-9
8270E
ND
4.0
1.0
ug/L
1
Di-n-butyl phthalate
84-74-2
8270E
ND
4.0
0.50
ug/L
1
4,6-Dinitro-2-methylphenol
534-52-1
8270E
ND
20
1.0
ug/L
1
2,4-Dinitrophenol
51-28-5
8270E
ND
20
1.0
ug/L
1
2,4-Dinitrotoluene
121-14-2
8270E
ND
8.0
0.50
ug/L
1
2,6-Dinitrotoluene
606-20-2
8270E
ND
8.0
0.50
ug/L
1
Di-n-octylphthalate
117-84-0
8270E
ND
4.0
0.50
ug/L
1
bis(2-Ethylhexyl)phthalate
117-81-7
8270E
ND
4.0
0.50
ug/L
1
Fluoranthene
206-44-0
8270E
ND
0.80
0.20
ug/L
1
Fluorene
86-73-7
8270E
ND
0.80
0.20
ug/L
1
Hexachlorobenzene
118-74-1
8270E
ND
4.0
0.50
ug/L
1
Hexachlorobutadiene
87-68-3
8270E
ND
4.0
0.50
ug/L
1
Hexachlorocyclopentadiene
77-47-4
8270E
ND
20
2.0
ug/L
1
LOQ = Limit of Quantitation B =
Detected in the method blank
E = Quantitation of
compound exceeded the calibration range
DL = Detection Limit
ND = Not detected at or above the DL N =
Recovery is out of criteria
P = The RPD between two GC columns exceeds 40 %
J = Estimated result <
LOQ and > DL
H = Out of holding time W =
Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 7 of 131

Semivolatile Organic Compounds by GC/MS
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-001
Description: TP-1 Matrix: Aqueous
Date Sampled:02/25/2020 1125 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 3520C 8270E 1 03/04/2020 1452 JCG 03/02/2020 1316 46578
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
Hexachloroethane
67-72-1
8270E
ND
4.0
1.0
ug/L
1
Indeno(1,2,3-c,d)pyrene
193-39-5
8270E
ND
0.80
0.20
ug/L
1
Isophorone
78-59-1
8270E
ND
4.0
0.50
ug/L
1
2-Methylnaphthalene
91-57-6
8270E
ND
0.80
0.20
ug/L
1
2-Methylphenol
95-48-7
8270E
ND
4.0
1.0
ug/L
1
3+4-Methylphenol
106-44-5
8270E
ND
4.0
1.5
ug/L
1
Naphthalene
91-20-3
8270E
ND
0.80
0.20
ug/L
1
2-Nitroaniline
88-74-4
8270E
ND
8.0
0.50
ug/L
1
3-Nitroaniline
99-09-2
8270E
ND
8.0
1.0
ug/L
1
4-Nitroaniline
100-01-6
8270E
ND
8.0
1.5
ug/L
1
Nitrobenzene
98-95-3
8270E
ND
4.0
1.5
ug/L
1
2-Nitrophenol
88-75-5
8270E
ND
4.0
1.0
ug/L
1
4-Nitrophenol
100-02-7
8270E
ND
20
2.0
ug/L
1
N-Nitrosodi-n-propylamine
621-64-7
8270E
ND
4.0
0.50
ug/L
1
N-Nitrosodiphenylamine (Diphenylamine)
86-30-6
8270E
ND
4.0
0.50
ug/L
1
Pentachlorophenol
87-86-5
8270E
ND
20
2.0
ug/L
1
Phenanthrene
85-01-8
8270E
ND
0.80
0.20
ug/L
1
Phenol
108-95-2
8270E
ND
4.0
0.50
ug/L
1
Pyrene
129-00-0
8270E
ND
0.80
0.20
ug/L
1
2,4,5-Trichlorophenol
95-95-4
8270E
ND
4.0
0.50
ug/L
1
2,4,6-Trichlorophenol
88-06-2
8270E
ND
4.0
0.50
ug/L
1
Run 1 Acceptance
Surrogate
Q % Recovery Limits
2-Fluorobiphenyl
77 37-129
2-Fluorophenol
47 24-127
Nitrobenzene-d5
84 38-127
Phenol-d5
69 28-128
Terphenyl-d14
113 10-148
2,4,6-Tribromophenol
92 35-144
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 8 of 131

MADEP EPH (aliphatics) - Unfractionated
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-001
Description: TP-1 Matrix: Aqueous
Date Sampled:02/25/2020 1125 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution
Analysis Date Analyst
Prep Date
Batch
1 MADEP-EPH- MADEP-EPH-04 1
03/03/2020 1931 DAL1
02/27/2020 1528 46298
CAS Analytical
Parameter Number Method
Result Q
LOQ DL Units Run
C19 - C36 Aliphatics - Unfractionated
MADEP-EPH-04
ND
100 100 ug/L 1
C9 - C18 Aliphatics - Unfractionated
MADEP-EPH-04
ND
100 100 ug/L 1
Run 1
Acceptance
Surrogate Q % Recovery
Limits
1-Chloro-octadecane (aliphatic) - Unfractionated 82
40-140
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 9 of 131

MADEP EPH (aromatics) - Unfractionated
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-001
Description: TP-1 Matrix: Aqueous
Date Sampled:02/25/2020 1125 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 MADEP-EPH- MADEP-EPH-04 1 03/03/2020 1931 DAL1 02/27/2020 1528 46299
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
C11 - C22 Aromatics - Unfractionated MADEP-EPH-04 ND 100 100 ug/L 1
Run 1 Acceptance
Surrogate Q % Recovery Limits
o - Terphenyl (aromatic) - Unfractionated 60 40-140
2-Fluorobiphenyl (fractionation 1) 76 40-140
2-Bromonaphthalene (fractionation 2) 78 40-140
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 10 of 131

MADEP VPH (aliphatics)
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-001
Description: TP-1 Matrix: Aqueous
Date Sampled:02/25/2020 1125 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 VPH MADEP-VPH-18-2.1 1 03/03/2020 2307 STM 46799
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
C5 - C8 Aliphatics MADEP-VPH- ND 75 15 ug/L 1
C9 - C12 Aliphatics MADEP-VPH- ND 75 15 ug/L 1
Run 1 Acceptance
Surrogate Q % Recovery Limits
2,5-Dibromotoluene (FID)
75 70-130
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 11 of 131

MADEP VPH (aromatics)
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-001
Description: TP-1 Matrix: Aqueous
Date Sampled:02/25/2020 1125 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 VPH MADEP-VPH-18-2.1 1 03/03/2020 2307 STM 46800
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
C9 - C10 Aromatics MADEP-VPH- ND 25 5.0 ug/L 1
Run 1 Acceptance
Surrogate Q % Recovery Limits
2,5-Dibromotoluene (PID)
77 70-130
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 12 of 131

Volatile Organic Compounds by GC/MS
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-002
Description: TP-2 Matrix: Aqueous
Date Sampled:02/25/2020 1105 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method
Dilution Analysis Date Analyst
Prep Date
Batch
1 5030B 8260D
1 02/29/2020 0006 STM
46473
CAS
Analytical
Parameter
Number
Method
Result Q
LOQ
DL
Units
Run
Acetone
67-64-1
8260D
ND
10
4.0
ug/L
1
Benzene
71-43-2
8260D
ND
0.50
0.40
ug/L
1
Bromodichloromethane
75-27-4
8260D
ND
0.50
0.40
ug/L
1
Bromoform
75-25-2
8260D
ND
0.50
0.40
ug/L
1
Bromomethane (Methyl bromide)
74-83-9
8260D
ND
0.50
0.40
ug/L
1
2-Butanone (MEK)
78-93-3
8260D
ND
10
2.0
ug/L
1
Carbon disulfide
75-15-0
8260D
ND
0.50
0.40
ug/L
1
Carbon tetrachloride
56-23-5
8260D
ND
0.50
0.40
ug/L
1
Chlorobenzene
108-90-7
8260D
ND
0.50
0.40
ug/L
1
Chloroethane
75-00-3
8260D
ND
0.50
0.40
ug/L
1
Chloroform
67-66-3
8260D
ND
0.50
0.40
ug/L
1
Chloromethane (Methyl chloride)
74-87-3
8260D
ND
0.50
0.40
ug/L
1
Cyclohexane
110-82-7
8260D
ND
0.50
0.40
ug/L
1
1,2-Dibromo-3-chloropropane (DBCP)
96-12-8
8260D
ND
0.50
0.40
ug/L
1
Dibromochloromethane
124-48-1
8260D
ND
0.50
0.40
ug/L
1
1,2-Dibromoethane (EDB)
106-93-4
8260D
ND
0.50
0.40
ug/L
1
1,2-Dichlorobenzene
95-50-1
8260D
ND
0.50
0.40
ug/L
1
1,3-Dichlorobenzene
541-73-1
8260D
ND
0.50
0.40
ug/L
1
1,4-Dichlorobenzene
106-46-7
8260D
ND
0.50
0.40
ug/L
1
Dichlorodifluoromethane
75-71-8
8260D
ND
0.50
0.40
ug/L
1
1,1-Dichloroethane
75-34-3
8260D
ND
0.50
0.40
ug/L
1
1,2-Dichloroethane
107-06-2
8260D
ND
0.50
0.40
ug/L
1
1, 1 -Dichloroethene
75-35-4
8260D
ND
0.50
0.40
ug/L
1
cis- 1,2-Dichloroethene
156-59-2
8260D
ND
0.50
0.40
ug/L
1
trans-1,2-Dichloroethene
156-60-5
8260D
ND
0.50
0.40
ug/L
1
1,2-Dichloropropane
78-87-5
8260D
ND
0.50
0.40
ug/L
1
cis- 1,3-Dichloropropene
10061-01-5
8260D
ND
0.50
0.40
ug/L
1
trans-1,3-Dichloropropene
10061-02-6
8260D
ND
0.50
0.40
ug/L
1
Ethylbenzene
100-41-4
8260D
ND
0.50
0.40
ug/L
1
2-Hexanone
591-78-6
8260D
ND
10
2.0
ug/L
1
Isopropylbenzene
98-82-8
8260D
ND
0.50
0.40
ug/L
1
Methyl acetate
79-20-9
8260D
ND
1.0
0.40
ug/L
1
Methyl tertiary butyl ether (MTBE)
1634-04-4
8260D
ND
0.50
0.40
ug/L
1
4-Methyl-2-pentanone
108-10-1
8260D
ND
10
2.0
ug/L
1
Methylcyclohexane
108-87-2
8260D
ND
5.0
0.40
ug/L
1
Methylene chloride
75-09-2
8260D
ND
0.50
0.40
ug/L
1
Styrene
100-42-5
8260D
ND
0.50
0.41
ug/L
1
1,1,2,2-Tetrachloroethane
79-34-5
8260D
ND
0.50
0.40
ug/L
1
Tetrachloroethene
127-18-4
8260D
ND
0.50
0.40
ug/L
1
Toluene
108-88-3
8260D
ND
0.50
0.40
ug/L
1
1,1,2-Trichloro-1,2,2-Trifluoroethane
76-13-1
8260D
ND
1.0
0.42
ug/L
1
1,2,4-Trichlorobenzene
120-82-1
8260D
ND
0.50
0.40
ug/L
1
1,1,1-Trichloroethane
71-55-6
8260D
ND
0.50
0.40
ug/L
1
1,1,2-Trichloroethane
79-00-5
8260D
ND
0.50
0.40
ug/L
1
LOQ = Limit of Quantitation B = Detected in the method blank
E = Quantitation of
compound exceeded the calibration range
DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria
P = The RPD between two GC columns exceeds 40 %
J = Estimated result <
LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 13 of 131

Volatile Organic Compounds by GC/MS
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-002
Description: TP-2 Matrix: Aqueous
Date Sampled:02/25/2020 1105 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 5030B 8260D 1 02/29/2020 0006 STM 46473
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
Trichloroethene
79-01-6
8260D
ND
0.50
0.40
ug/L
1
Trichlorofluoromethane
75-69-4
8260D
ND
0.50
0.40
ug/L
1
Vinyl chloride
75-01-4
8260D
ND
0.50
0.40
ug/L
1
Xylenes (total)
1330-20-7
8260D
ND
1.0
0.40
ug/L
1
Run 1 Acceptance
Surrogate
Q % Recovery Limits
Bromofluorobenzene
1,2-Dichloroethane-d4
Toluene-d8
103 70-130
105 70-130
110 70-130
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 14 of 131

Semivolatile Organic Compounds by GC/MS
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-002
Description: TP-2 Matrix: Aqueous
Date Sampled:02/25/2020 1105 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method
Analytical Method
Dilution Analysis Date Analyst
Prep Date
Batch
1 3520C
8270E
1 03/04/2020 1517 JCG
03/02/2020 1316 46578
CAS
Analytical
Parameter
Number
Method
Result Q
LOQ
DL
Units
Run
Acenaphthene
83-32-9
8270E
ND
0.80
0.20
ug/L
1
Acenaphthylene
208-96-8
8270E
ND
0.80
0.20
ug/L
1
Acetophenone
98-86-2
8270E
ND
4.0
0.50
ug/L
1
Anthracene
120-12-7
8270E
ND
0.80
0.20
ug/L
1
Atrazine
1912-24-9
8270E
ND
4.0
0.50
ug/L
1
Benzaldehyde
100-52-7
8270E
ND
8.0
0.50
ug/L
1
Benzo(a)anthracene
56-55-3
8270E
ND
0.80
0.20
ug/L
1
Benzo(a)pyrene
50-32-8
8270E
ND
0.80
0.20
ug/L
1
Benzo(b)fluoranthene
205-99-2
8270E
ND
0.80
0.20
ug/L
1
Benzo(g,h,i)perylene
191-24-2
8270E
ND
0.80
0.20
ug/L
1
Benzo(k)fluoranthene
207-08-9
8270E
ND
0.80
0.20
ug/L
1
1,1'-Biphenyl
92-52-4
8270E
ND
4.0
0.50
ug/L
1
4-Bromophenyl phenyl ether
101-55-3
8270E
ND
4.0
0.50
ug/L
1
Butyl benzyl phthalate
85-68-7
8270E
ND
4.0
0.50
ug/L
1
Caprolactam
105-60-2
8270E
ND
8.0
1.0
ug/L
1
Carbazole
86-74-8
8270E
ND
4.0
0.50
ug/L
1
bis (2-Chloro-1-methylethyl) ether
108-60-1
8270E
ND
4.0
0.50
ug/L
1
4-Chloro-3-methyl phenol
59-50-7
8270E
ND
4.0
0.50
ug/L
1
4-Chloroaniline
106-47-8
8270E
ND
8.0
0.50
ug/L
1
bis(2-Chloroethoxy)methane
111-91-1
8270E
ND
4.0
0.50
ug/L
1
bis(2-Chloroethyl)ether
111-44-4
8270E
ND
4.0
0.50
ug/L
1
2-Chloronaphthalene
91-58-7
8270E
ND
4.0
0.50
ug/L
1
2-Chlorophenol
95-57-8
8270E
ND
4.0
0.50
ug/L
1
4-Chlorophenyl phenyl ether
7005-72-3
8270E
ND
4.0
0.50
ug/L
1
Chrysene
218-01-9
8270E
ND
0.80
0.20
ug/L
1
Dibenzo(a,h)anthracene
53-70-3
8270E
ND
0.80
0.20
ug/L
1
Dibenzofuran
132-64-9
8270E
ND
4.0
0.50
ug/L
1
3,3'-Dichlorobenzidine
91-94-1
8270E
ND
4.0
1.8
ug/L
1
2,4-Dichlorophenol
120-83-2
8270E
ND
8.0
1.0
ug/L
1
Diethylphthalate
84-66-2
8270E
ND
4.0
0.50
ug/L
1
Dimethyl phthalate
131-11-3
8270E
ND
4.0
0.50
ug/L
1
2,4-Dimethylphenol
105-67-9
8270E
ND
4.0
1.0
ug/L
1
Di-n-butyl phthalate
84-74-2
8270E
ND
4.0
0.50
ug/L
1
4,6-Dinitro-2-methylphenol
534-52-1
8270E
ND
20
1.0
ug/L
1
2,4-Dinitrophenol
51-28-5
8270E
ND
20
1.0
ug/L
1
2,4-Dinitrotoluene
121-14-2
8270E
ND
8.0
0.50
ug/L
1
2,6-Dinitrotoluene
606-20-2
8270E
ND
8.0
0.50
ug/L
1
Di-n-octylphthalate
117-84-0
8270E
ND
4.0
0.50
ug/L
1
bis(2-Ethylhexyl)phthalate
117-81-7
8270E
ND
4.0
0.50
ug/L
1
Fluoranthene
206-44-0
8270E
ND
0.80
0.20
ug/L
1
Fluorene
86-73-7
8270E
ND
0.80
0.20
ug/L
1
Hexachlorobenzene
118-74-1
8270E
ND
4.0
0.50
ug/L
1
Hexachlorobutadiene
87-68-3
8270E
ND
4.0
0.50
ug/L
1
Hexachlorocyclopentadiene
77-47-4
8270E
ND
20
2.0
ug/L
1
LOQ = Limit of Quantitation B =
Detected in the method blank
E = Quantitation of
compound exceeded the calibration range
DL = Detection Limit
ND = Not detected at or above the DL N =
Recovery is out of criteria
P = The RPD between two GC columns exceeds 40 %
J = Estimated result <
LOQ and > DL
H = Out of holding time W =
Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 15 of 131

Semivolatile Organic Compounds by GC/MS
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-002
Description: TP-2 Matrix: Aqueous
Date Sampled:02/25/2020 1105 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 3520C 8270E 1 03/04/2020 1517 JCG 03/02/2020 1316 46578
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
Hexachloroethane
67-72-1
8270E
ND
4.0
1.0
ug/L
1
Indeno(1,2,3-c,d)pyrene
193-39-5
8270E
ND
0.80
0.20
ug/L
1
Isophorone
78-59-1
8270E
ND
4.0
0.50
ug/L
1
2-Methylnaphthalene
91-57-6
8270E
ND
0.80
0.20
ug/L
1
2-Methylphenol
95-48-7
8270E
ND
4.0
1.0
ug/L
1
3+4-Methylphenol
106-44-5
8270E
ND
4.0
1.5
ug/L
1
Naphthalene
91-20-3
8270E
ND
0.80
0.20
ug/L
1
2-Nitroaniline
88-74-4
8270E
ND
8.0
0.50
ug/L
1
3-Nitroaniline
99-09-2
8270E
ND
8.0
1.0
ug/L
1
4-Nitroaniline
100-01-6
8270E
ND
8.0
1.5
ug/L
1
Nitrobenzene
98-95-3
8270E
ND
4.0
1.5
ug/L
1
2-Nitrophenol
88-75-5
8270E
ND
4.0
1.0
ug/L
1
4-Nitrophenol
100-02-7
8270E
ND
20
2.0
ug/L
1
N-Nitrosodi-n-propylamine
621-64-7
8270E
ND
4.0
0.50
ug/L
1
N-Nitrosodiphenylamine (Diphenylamine)
86-30-6
8270E
ND
4.0
0.50
ug/L
1
Pentachlorophenol
87-86-5
8270E
ND
20
2.0
ug/L
1
Phenanthrene
85-01-8
8270E
ND
0.80
0.20
ug/L
1
Phenol
108-95-2
8270E
ND
4.0
0.50
ug/L
1
Pyrene
129-00-0
8270E
ND
0.80
0.20
ug/L
1
2,4,5-Trichlorophenol
95-95-4
8270E
ND
4.0
0.50
ug/L
1
2,4,6-Trichlorophenol
88-06-2
8270E
ND
4.0
0.50
ug/L
1
Run 1 Acceptance
Surrogate
Q % Recovery Limits
2-Fluorobiphenyl
78 37-129
2-Fluorophenol
50 24-127
Nitrobenzene-d5
88 38-127
Phenol-d5
76 28-128
Terphenyl-d14
106 10-148
2,4,6-Tribromophenol
84 35-144
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 16 of 131

MADEP EPH (aliphatics) - Unfractionated
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-002
Description: TP-2 Matrix: Aqueous
Date Sampled:02/25/2020 1105 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution
Analysis Date Analyst
Prep Date
Batch
1 MADEP-EPH- MADEP-EPH-04 1
03/03/2020 2000 DAL1
02/27/2020 1528 46298
CAS Analytical
Parameter Number Method
Result Q
LOQ DL Units Run
C19 - C36 Aliphatics - Unfractionated
MADEP-EPH-04
ND
100 100 ug/L 1
C9 - C18 Aliphatics - Unfractionated
MADEP-EPH-04
ND
100 100 ug/L 1
Run 1
Acceptance
Surrogate Q % Recovery
Limits
1-Chloro-octadecane (aliphatic) - Unfractionated 72
40-140
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 17 of 131

MADEP EPH (aromatics) - Unfractionated
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-002
Description: TP-2 Matrix: Aqueous
Date Sampled:02/25/2020 1105 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 MADEP-EPH- MADEP-EPH-04 1 03/03/2020 2000 DAL1 02/27/2020 1528 46299
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
C11 - C22 Aromatics - Unfractionated MADEP-EPH-04 ND 100 100 ug/L 1
Run 1 Acceptance
Surrogate Q % Recovery Limits
o - Terphenyl (aromatic) - Unfractionated 62 40-140
2-Fluorobiphenyl (fractionation 1) 77 40-140
2-Bromonaphthalene (fractionation 2) 79 40-140
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 18 of 131

MADEP VPH (aliphatics)
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-002
Description: TP-2 Matrix: Aqueous
Date Sampled:02/25/2020 1105 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
2 VPH MADEP-VPH-18-2.1 1 03/04/20201457 STM 46929
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
C5 - C8 Aliphatics MADEP-VPH- ND 75 15 ug/L 2
C9 - C12 Aliphatics MADEP-VPH- ND 75 15 ug/L 2
Run 2 Acceptance
Surrogate Q % Recovery Limits
2,5-Dibromotoluene (FID)
106 70-130
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 19 of 131

MADEP VPH (aromatics)
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-002
Description: TP-2 Matrix: Aqueous
Date Sampled:02/25/2020 1105 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
2 VPH MADEP-VPH-18-2.1 1 03/04/20201457 STM 46930
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
C9 - C10 Aromatics MADEP-VPH- ND 25 5.0 ug/L 2
Run 2 Acceptance
Surrogate Q % Recovery Limits
2,5-Dibromotoluene (PID)
106 70-130
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 20 of 131

Volatile Organic Compounds by GC/MS
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-003
Description: MW-1 Matrix: Aqueous
Date Sampled:02/25/2020 1205 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method
Dilution Analysis Date Analyst
Prep Date
Batch
1 5030B 8260D
1 02/29/2020 0032 STM
46473
CAS
Analytical
Parameter
Number
Method
Result Q
LOQ
DL
Units
Run
Acetone
67-64-1
8260D
ND
10
4.0
ug/L
1
Benzene
71-43-2
8260D
ND
0.50
0.40
ug/L
1
Bromodichloromethane
75-27-4
8260D
ND
0.50
0.40
ug/L
1
Bromoform
75-25-2
8260D
ND
0.50
0.40
ug/L
1
Bromomethane (Methyl bromide)
74-83-9
8260D
ND
0.50
0.40
ug/L
1
2-Butanone (MEK)
78-93-3
8260D
ND
10
2.0
ug/L
1
Carbon disulfide
75-15-0
8260D
ND
0.50
0.40
ug/L
1
Carbon tetrachloride
56-23-5
8260D
ND
0.50
0.40
ug/L
1
Chlorobenzene
108-90-7
8260D
ND
0.50
0.40
ug/L
1
Chloroethane
75-00-3
8260D
ND
0.50
0.40
ug/L
1
Chloroform
67-66-3
8260D
ND
0.50
0.40
ug/L
1
Chloromethane (Methyl chloride)
74-87-3
8260D
ND
0.50
0.40
ug/L
1
Cyclohexane
110-82-7
8260D
ND
0.50
0.40
ug/L
1
1,2-Dibromo-3-chloropropane (DBCP)
96-12-8
8260D
ND
0.50
0.40
ug/L
1
Dibromochloromethane
124-48-1
8260D
ND
0.50
0.40
ug/L
1
1,2-Dibromoethane (EDB)
106-93-4
8260D
ND
0.50
0.40
ug/L
1
1,2-Dichlorobenzene
95-50-1
8260D
ND
0.50
0.40
ug/L
1
1,3-Dichlorobenzene
541-73-1
8260D
ND
0.50
0.40
ug/L
1
1,4-Dichlorobenzene
106-46-7
8260D
ND
0.50
0.40
ug/L
1
Dichlorodifluoromethane
75-71-8
8260D
ND
0.50
0.40
ug/L
1
1,1-Dichloroethane
75-34-3
8260D
ND
0.50
0.40
ug/L
1
1,2-Dichloroethane
107-06-2
8260D
ND
0.50
0.40
ug/L
1
1, 1 -Dichloroethene
75-35-4
8260D
ND
0.50
0.40
ug/L
1
cis- 1,2-Dichloroethene
156-59-2
8260D
ND
0.50
0.40
ug/L
1
trans-1,2-Dichloroethene
156-60-5
8260D
ND
0.50
0.40
ug/L
1
1,2-Dichloropropane
78-87-5
8260D
ND
0.50
0.40
ug/L
1
cis- 1,3-Dichloropropene
10061-01-5
8260D
ND
0.50
0.40
ug/L
1
trans-1,3-Dichloropropene
10061-02-6
8260D
ND
0.50
0.40
ug/L
1
Ethylbenzene
100-41-4
8260D
ND
0.50
0.40
ug/L
1
2-Hexanone
591-78-6
8260D
ND
10
2.0
ug/L
1
Isopropylbenzene
98-82-8
8260D
ND
0.50
0.40
ug/L
1
Methyl acetate
79-20-9
8260D
ND
1.0
0.40
ug/L
1
Methyl tertiary butyl ether (MTBE)
1634-04-4
8260D
ND
0.50
0.40
ug/L
1
4-Methyl-2-pentanone
108-10-1
8260D
ND
10
2.0
ug/L
1
Methylcyclohexane
108-87-2
8260D
ND
5.0
0.40
ug/L
1
Methylene chloride
75-09-2
8260D
ND
0.50
0.40
ug/L
1
Styrene
100-42-5
8260D
ND
0.50
0.41
ug/L
1
1,1,2,2-Tetrachloroethane
79-34-5
8260D
ND
0.50
0.40
ug/L
1
Tetrachloroethene
127-18-4
8260D
ND
0.50
0.40
ug/L
1
Toluene
108-88-3
8260D
ND
0.50
0.40
ug/L
1
1,1,2-Trichloro-1,2,2-Trifluoroethane
76-13-1
8260D
ND
1.0
0.42
ug/L
1
1,2,4-Trichlorobenzene
120-82-1
8260D
ND
0.50
0.40
ug/L
1
1,1,1-Trichloroethane
71-55-6
8260D
ND
0.50
0.40
ug/L
1
1,1,2-Trichloroethane
79-00-5
8260D
ND
0.50
0.40
ug/L
1
LOQ = Limit of Quantitation B = Detected in the method blank
E = Quantitation of
compound exceeded the calibration range
DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria
P = The RPD between two GC columns exceeds 40 %
J = Estimated result <
LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 21 of 131

Volatile Organic Compounds by GC/MS
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-003
Description: MW-1 Matrix: Aqueous
Date Sampled:02/25/2020 1205 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 5030B 8260D 1 02/29/2020 0032 STM 46473
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
Trichloroethene
79-01-6
8260D
ND
0.50
0.40
ug/L
1
Trichlorofluoromethane
75-69-4
8260D
ND
0.50
0.40
ug/L
1
Vinyl chloride
75-01-4
8260D
ND
0.50
0.40
ug/L
1
Xylenes (total)
1330-20-7
8260D
ND
1.0
0.40
ug/L
1
Run 1 Acceptance
Surrogate
Q % Recovery Limits
Bromofluorobenzene
1,2-Dichloroethane-d4
Toluene-d8
104 70-130
104 70-130
112 70-130
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 22 of 131

Semivolatile Organic Compounds by GC/MS
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-003
Description: MW-1 Matrix: Aqueous
Date Sampled:02/25/2020 1205 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method
Analytical Method
Dilution Analysis Date Analyst
Prep Date
Batch
1 3520C
8270E
1 03/04/2020 1542 JCG
03/02/2020 1316 46578
CAS
Analytical
Parameter
Number
Method
Result Q
LOQ
DL
Units
Run
Acenaphthene
83-32-9
8270E
ND
0.80
0.20
ug/L
1
Acenaphthylene
208-96-8
8270E
ND
0.80
0.20
ug/L
1
Acetophenone
98-86-2
8270E
ND
4.0
0.50
ug/L
1
Anthracene
120-12-7
8270E
ND
0.80
0.20
ug/L
1
Atrazine
1912-24-9
8270E
ND
4.0
0.50
ug/L
1
Benzaldehyde
100-52-7
8270E
ND
8.0
0.50
ug/L
1
Benzo(a)anthracene
56-55-3
8270E
ND
0.80
0.20
ug/L
1
Benzo(a)pyrene
50-32-8
8270E
ND
0.80
0.20
ug/L
1
Benzo(b)fluoranthene
205-99-2
8270E
ND
0.80
0.20
ug/L
1
Benzo(g,h,i)perylene
191-24-2
8270E
ND
0.80
0.20
ug/L
1
Benzo(k)fluoranthene
207-08-9
8270E
ND
0.80
0.20
ug/L
1
1,1'-Biphenyl
92-52-4
8270E
ND
4.0
0.50
ug/L
1
4-Bromophenyl phenyl ether
101-55-3
8270E
ND
4.0
0.50
ug/L
1
Butyl benzyl phthalate
85-68-7
8270E
ND
4.0
0.50
ug/L
1
Caprolactam
105-60-2
8270E
ND
8.0
1.0
ug/L
1
Carbazole
86-74-8
8270E
ND
4.0
0.50
ug/L
1
bis (2-Chloro-1-methylethyl) ether
108-60-1
8270E
ND
4.0
0.50
ug/L
1
4-Chloro-3-methyl phenol
59-50-7
8270E
ND
4.0
0.50
ug/L
1
4-Chloroaniline
106-47-8
8270E
ND
8.0
0.50
ug/L
1
bis(2-Chloroethoxy)methane
111-91-1
8270E
ND
4.0
0.50
ug/L
1
bis(2-Chloroethyl)ether
111-44-4
8270E
ND
4.0
0.50
ug/L
1
2-Chloronaphthalene
91-58-7
8270E
ND
4.0
0.50
ug/L
1
2-Chlorophenol
95-57-8
8270E
ND
4.0
0.50
ug/L
1
4-Chlorophenyl phenyl ether
7005-72-3
8270E
ND
4.0
0.50
ug/L
1
Chrysene
218-01-9
8270E
ND
0.80
0.20
ug/L
1
Dibenzo(a,h)anthracene
53-70-3
8270E
ND
0.80
0.20
ug/L
1
Dibenzofuran
132-64-9
8270E
ND
4.0
0.50
ug/L
1
3,3'-Dichlorobenzidine
91-94-1
8270E
ND
4.0
1.8
ug/L
1
2,4-Dichlorophenol
120-83-2
8270E
ND
8.0
1.0
ug/L
1
Diethylphthalate
84-66-2
8270E
ND
4.0
0.50
ug/L
1
Dimethyl phthalate
131-11-3
8270E
ND
4.0
0.50
ug/L
1
2,4-Dimethylphenol
105-67-9
8270E
ND
4.0
1.0
ug/L
1
Di-n-butyl phthalate
84-74-2
8270E
ND
4.0
0.50
ug/L
1
4,6-Dinitro-2-methylphenol
534-52-1
8270E
ND
20
1.0
ug/L
1
2,4-Dinitrophenol
51-28-5
8270E
ND
20
1.0
ug/L
1
2,4-Dinitrotoluene
121-14-2
8270E
ND
8.0
0.50
ug/L
1
2,6-Dinitrotoluene
606-20-2
8270E
ND
8.0
0.50
ug/L
1
Di-n-octylphthalate
117-84-0
8270E
ND
4.0
0.50
ug/L
1
bis(2-Ethylhexyl)phthalate
117-81-7
8270E
2.6 J
4.0
0.50
ug/L
1
Fluoranthene
206-44-0
8270E
ND
0.80
0.20
ug/L
1
Fluorene
86-73-7
8270E
ND
0.80
0.20
ug/L
1
Hexachlorobenzene
118-74-1
8270E
ND
4.0
0.50
ug/L
1
Hexachlorobutadiene
87-68-3
8270E
ND
4.0
0.50
ug/L
1
Hexachlorocyclopentadiene
77-47-4
8270E
ND
20
2.0
ug/L
1
LOQ = Limit of Quantitation B =
Detected in the method blank
E = Quantitation of
compound exceeded the calibration range
DL = Detection Limit
ND = Not detected at or above the DL N =
Recovery is out of criteria
P = The RPD between two GC columns exceeds 40 %
J = Estimated result <
LOQ and > DL
H = Out of holding time W =
Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 23 of 131

Semivolatile Organic Compounds by GC/MS
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-003
Description: MW-1 Matrix: Aqueous
Date Sampled:02/25/2020 1205 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 3520C 8270E 1 03/04/2020 1542 JCG 03/02/2020 1316 46578
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
Hexachloroethane
67-72-1
8270E
ND
4.0
1.0
ug/L
1
Indeno(1,2,3-c,d)pyrene
193-39-5
8270E
ND
0.80
0.20
ug/L
1
Isophorone
78-59-1
8270E
ND
4.0
0.50
ug/L
1
2-Methylnaphthalene
91-57-6
8270E
ND
0.80
0.20
ug/L
1
2-Methylphenol
95-48-7
8270E
ND
4.0
1.0
ug/L
1
3+4-Methylphenol
106-44-5
8270E
ND
4.0
1.5
ug/L
1
Naphthalene
91-20-3
8270E
ND
0.80
0.20
ug/L
1
2-Nitroaniline
88-74-4
8270E
ND
8.0
0.50
ug/L
1
3-Nitroaniline
99-09-2
8270E
ND
8.0
1.0
ug/L
1
4-Nitroaniline
100-01-6
8270E
ND
8.0
1.5
ug/L
1
Nitrobenzene
98-95-3
8270E
ND
4.0
1.5
ug/L
1
2-Nitrophenol
88-75-5
8270E
ND
4.0
1.0
ug/L
1
4-Nitrophenol
100-02-7
8270E
ND
20
2.0
ug/L
1
N-Nitrosodi-n-propylamine
621-64-7
8270E
ND
4.0
0.50
ug/L
1
N-Nitrosodiphenylamine (Diphenylamine)
86-30-6
8270E
ND
4.0
0.50
ug/L
1
Pentachlorophenol
87-86-5
8270E
ND
20
2.0
ug/L
1
Phenanthrene
85-01-8
8270E
ND
0.80
0.20
ug/L
1
Phenol
108-95-2
8270E
ND
4.0
0.50
ug/L
1
Pyrene
129-00-0
8270E
ND
0.80
0.20
ug/L
1
2,4,5-Trichlorophenol
95-95-4
8270E
ND
4.0
0.50
ug/L
1
2,4,6-Trichlorophenol
88-06-2
8270E
ND
4.0
0.50
ug/L
1
Run 1 Acceptance
Surrogate
Q % Recovery Limits
2-Fluorobiphenyl
77 37-129
2-Fluorophenol
45 24-127
Nitrobenzene-d5
83 38-127
Phenol-d5
65 28-128
Terphenyl-d14
110 10-148
2,4,6-Tribromophenol
88 35-144
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 24 of 131

MADEP EPH (aliphatics) - Unfractionated
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-003
Description: MW-1 Matrix: Aqueous
Date Sampled:02/25/2020 1205 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution
Analysis Date Analyst
Prep Date
Batch
1 MADEP-EPH- MADEP-EPH-04 1
03/03/2020 2030 DAL1
02/27/2020 1528 46298
CAS Analytical
Parameter Number Method
Result Q
LOQ DL Units Run
C19 - C36 Aliphatics - Unfractionated
MADEP-EPH-04
ND
100 100 ug/L 1
C9 - C18 Aliphatics - Unfractionated
MADEP-EPH-04
ND
100 100 ug/L 1
Run 1
Acceptance
Surrogate Q % Recovery
Limits
1-Chloro-octadecane (aliphatic) - Unfractionated 84
40-140
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 25 of 131

MADEP EPH (aromatics) - Unfractionated
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-003
Description: MW-1 Matrix: Aqueous
Date Sampled:02/25/2020 1205 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 MADEP-EPH- MADEP-EPH-04 1 03/03/2020 2030 DAL1 02/27/2020 1528 46299
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
C11 - C22 Aromatics - Unfractionated MADEP-EPH-04 ND 100 100 ug/L 1
Run 1 Acceptance
Surrogate Q % Recovery Limits
o - Terphenyl (aromatic) - Unfractionated 65 40-140
2-Fluorobiphenyl (fractionation 1) 81 40-140
2-Bromonaphthalene (fractionation 2) 83 40-140
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 26 of 131

MADEP VPH (aliphatics)
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-003
Description: MW-1 Matrix: Aqueous
Date Sampled:02/25/2020 1205 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
2 VPH MADEP-VPH-18-2.1 1 03/04/20201525 STM 46929
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
C5 - C8 Aliphatics MADEP-VPH- ND 75 15 ug/L 2
C9 - C12 Aliphatics MADEP-VPH- ND 75 15 ug/L 2
Run 2 Acceptance
Surrogate Q % Recovery Limits
2,5-Dibromotoluene (FID)
92 70-130
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 27 of 131

MADEP VPH (aromatics)
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-003
Description: MW-1 Matrix: Aqueous
Date Sampled:02/25/2020 1205 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
2 VPH MADEP-VPH-18-2.1 1 03/04/20201525 STM 46930
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
C9 - C10 Aromatics MADEP-VPH- ND 25 5.0 ug/L 2
Run 2 Acceptance
Surrogate Q % Recovery Limits
2,5-Dibromotoluene (PID)
92 70-130
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 28 of 131

Volatile Organic Compounds by GC/MS
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-004
Description: MW-4R Matrix: Aqueous
Date Sampled:02/25/2020 1350 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method
Dilution Analysis Date Analyst
Prep Date
Batch
1 5030B 8260D
1 02/29/2020 0057 STM
46473
CAS
Analytical
Parameter
Number
Method
Result Q
LOQ
DL
Units
Run
Acetone
67-64-1
8260D
ND
10
4.0
ug/L
1
Benzene
71-43-2
8260D
ND
0.50
0.40
ug/L
1
Bromodichloromethane
75-27-4
8260D
ND
0.50
0.40
ug/L
1
Bromoform
75-25-2
8260D
ND
0.50
0.40
ug/L
1
Bromomethane (Methyl bromide)
74-83-9
8260D
ND
0.50
0.40
ug/L
1
2-Butanone (MEK)
78-93-3
8260D
ND
10
2.0
ug/L
1
Carbon disulfide
75-15-0
8260D
ND
0.50
0.40
ug/L
1
Carbon tetrachloride
56-23-5
8260D
ND
0.50
0.40
ug/L
1
Chlorobenzene
108-90-7
8260D
ND
0.50
0.40
ug/L
1
Chloroethane
75-00-3
8260D
ND
0.50
0.40
ug/L
1
Chloroform
67-66-3
8260D
ND
0.50
0.40
ug/L
1
Chloromethane (Methyl chloride)
74-87-3
8260D
ND
0.50
0.40
ug/L
1
Cyclohexane
110-82-7
8260D
ND
0.50
0.40
ug/L
1
1,2-Dibromo-3-chloropropane (DBCP)
96-12-8
8260D
ND
0.50
0.40
ug/L
1
Dibromochloromethane
124-48-1
8260D
ND
0.50
0.40
ug/L
1
1,2-Dibromoethane (EDB)
106-93-4
8260D
ND
0.50
0.40
ug/L
1
1,2-Dichlorobenzene
95-50-1
8260D
ND
0.50
0.40
ug/L
1
1,3-Dichlorobenzene
541-73-1
8260D
ND
0.50
0.40
ug/L
1
1,4-Dichlorobenzene
106-46-7
8260D
ND
0.50
0.40
ug/L
1
Dichlorodifluoromethane
75-71-8
8260D
ND
0.50
0.40
ug/L
1
1,1-Dichloroethane
75-34-3
8260D
ND
0.50
0.40
ug/L
1
1,2-Dichloroethane
107-06-2
8260D
ND
0.50
0.40
ug/L
1
1, 1 -Dichloroethene
75-35-4
8260D
ND
0.50
0.40
ug/L
1
cis- 1,2-Dichloroethene
156-59-2
8260D
ND
0.50
0.40
ug/L
1
trans-1,2-Dichloroethene
156-60-5
8260D
ND
0.50
0.40
ug/L
1
1,2-Dichloropropane
78-87-5
8260D
ND
0.50
0.40
ug/L
1
cis- 1,3-Dichloropropene
10061-01-5
8260D
ND
0.50
0.40
ug/L
1
trans-1,3-Dichloropropene
10061-02-6
8260D
ND
0.50
0.40
ug/L
1
Ethylbenzene
100-41-4
8260D
ND
0.50
0.40
ug/L
1
2-Hexanone
591-78-6
8260D
ND
10
2.0
ug/L
1
Isopropylbenzene
98-82-8
8260D
ND
0.50
0.40
ug/L
1
Methyl acetate
79-20-9
8260D
ND
1.0
0.40
ug/L
1
Methyl tertiary butyl ether (MTBE)
1634-04-4
8260D
ND
0.50
0.40
ug/L
1
4-Methyl-2-pentanone
108-10-1
8260D
ND
10
2.0
ug/L
1
Methylcyclohexane
108-87-2
8260D
ND
5.0
0.40
ug/L
1
Methylene chloride
75-09-2
8260D
ND
0.50
0.40
ug/L
1
Styrene
100-42-5
8260D
ND
0.50
0.41
ug/L
1
1,1,2,2-Tetrachloroethane
79-34-5
8260D
ND
0.50
0.40
ug/L
1
Tetrachloroethene
127-18-4
8260D
ND
0.50
0.40
ug/L
1
Toluene
108-88-3
8260D
ND
0.50
0.40
ug/L
1
1,1,2-Trichloro-1,2,2-Trifluoroethane
76-13-1
8260D
ND
1.0
0.42
ug/L
1
1,2,4-Trichlorobenzene
120-82-1
8260D
ND
0.50
0.40
ug/L
1
1,1,1-Trichloroethane
71-55-6
8260D
ND
0.50
0.40
ug/L
1
1,1,2-Trichloroethane
79-00-5
8260D
ND
0.50
0.40
ug/L
1
LOQ = Limit of Quantitation B = Detected in the method blank
E = Quantitation of
compound exceeded the calibration range
DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria
P = The RPD between two GC columns exceeds 40 %
J = Estimated result <
LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 29 of 131

Volatile Organic Compounds by GC/MS
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-004
Description: MW-4R Matrix: Aqueous
Date Sampled:02/25/2020 1350 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 5030B 8260D 1 02/29/2020 0057 STM 46473
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
Trichloroethene
79-01-6
8260D
ND
0.50
0.40
ug/L
1
Trichlorofluoromethane
75-69-4
8260D
ND
0.50
0.40
ug/L
1
Vinyl chloride
75-01-4
8260D
ND
0.50
0.40
ug/L
1
Xylenes (total)
1330-20-7
8260D
ND
1.0
0.40
ug/L
1
Run 1 Acceptance
Surrogate
Q % Recovery Limits
Bromofluorobenzene
1,2-Dichloroethane-d4
Toluene-d8
105 70-130
107 70-130
111 70-130
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 30 of 131

Semivolatile Organic Compounds by GC/MS
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-004
Description: MW-4R Matrix: Aqueous
Date Sampled:02/25/2020 1350 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method
Analytical Method
Dilution Analysis Date Analyst
Prep Date
Batch
1 3520C
8270E
1 03/04/2020 1607 JCG
03/02/2020 1316 46578
CAS
Analytical
Parameter
Number
Method
Result Q
LOQ
DL
Units
Run
Acenaphthene
83-32-9
8270E
ND
0.80
0.20
ug/L
1
Acenaphthylene
208-96-8
8270E
ND
0.80
0.20
ug/L
1
Acetophenone
98-86-2
8270E
ND
4.0
0.50
ug/L
1
Anthracene
120-12-7
8270E
ND
0.80
0.20
ug/L
1
Atrazine
1912-24-9
8270E
ND
4.0
0.50
ug/L
1
Benzaldehyde
100-52-7
8270E
ND
8.0
0.50
ug/L
1
Benzo(a)anthracene
56-55-3
8270E
ND
0.80
0.20
ug/L
1
Benzo(a)pyrene
50-32-8
8270E
ND
0.80
0.20
ug/L
1
Benzo(b)fluoranthene
205-99-2
8270E
ND
0.80
0.20
ug/L
1
Benzo(g,h,i)perylene
191-24-2
8270E
ND
0.80
0.20
ug/L
1
Benzo(k)fluoranthene
207-08-9
8270E
ND
0.80
0.20
ug/L
1
1,1'-Biphenyl
92-52-4
8270E
ND
4.0
0.50
ug/L
1
4-Bromophenyl phenyl ether
101-55-3
8270E
ND
4.0
0.50
ug/L
1
Butyl benzyl phthalate
85-68-7
8270E
ND
4.0
0.50
ug/L
1
Caprolactam
105-60-2
8270E
ND
8.0
1.0
ug/L
1
Carbazole
86-74-8
8270E
ND
4.0
0.50
ug/L
1
bis (2-Chloro-1-methylethyl) ether
108-60-1
8270E
ND
4.0
0.50
ug/L
1
4-Chloro-3-methyl phenol
59-50-7
8270E
ND
4.0
0.50
ug/L
1
4-Chloroaniline
106-47-8
8270E
ND
8.0
0.50
ug/L
1
bis(2-Chloroethoxy)methane
111-91-1
8270E
ND
4.0
0.50
ug/L
1
bis(2-Chloroethyl)ether
111-44-4
8270E
ND
4.0
0.50
ug/L
1
2-Chloronaphthalene
91-58-7
8270E
ND
4.0
0.50
ug/L
1
2-Chlorophenol
95-57-8
8270E
ND
4.0
0.50
ug/L
1
4-Chlorophenyl phenyl ether
7005-72-3
8270E
ND
4.0
0.50
ug/L
1
Chrysene
218-01-9
8270E
ND
0.80
0.20
ug/L
1
Dibenzo(a,h)anthracene
53-70-3
8270E
ND
0.80
0.20
ug/L
1
Dibenzofuran
132-64-9
8270E
ND
4.0
0.50
ug/L
1
3,3'-Dichlorobenzidine
91-94-1
8270E
ND
4.0
1.8
ug/L
1
2,4-Dichlorophenol
120-83-2
8270E
ND
8.0
1.0
ug/L
1
Diethylphthalate
84-66-2
8270E
ND
4.0
0.50
ug/L
1
Dimethyl phthalate
131-11-3
8270E
ND
4.0
0.50
ug/L
1
2,4-Dimethylphenol
105-67-9
8270E
ND
4.0
1.0
ug/L
1
Di-n-butyl phthalate
84-74-2
8270E
ND
4.0
0.50
ug/L
1
4,6-Dinitro-2-methylphenol
534-52-1
8270E
ND
20
1.0
ug/L
1
2,4-Dinitrophenol
51-28-5
8270E
ND
20
1.0
ug/L
1
2,4-Dinitrotoluene
121-14-2
8270E
ND
8.0
0.50
ug/L
1
2,6-Dinitrotoluene
606-20-2
8270E
ND
8.0
0.50
ug/L
1
Di-n-octylphthalate
117-84-0
8270E
ND
4.0
0.50
ug/L
1
bis(2-Ethylhexyl)phthalate
117-81-7
8270E
ND
4.0
0.50
ug/L
1
Fluoranthene
206-44-0
8270E
ND
0.80
0.20
ug/L
1
Fluorene
86-73-7
8270E
ND
0.80
0.20
ug/L
1
Hexachlorobenzene
118-74-1
8270E
ND
4.0
0.50
ug/L
1
Hexachlorobutadiene
87-68-3
8270E
ND
4.0
0.50
ug/L
1
Hexachlorocyclopentadiene
77-47-4
8270E
ND
20
2.0
ug/L
1
LOQ = Limit of Quantitation B =
Detected in the method blank
E = Quantitation of
compound exceeded the calibration range
DL = Detection Limit
ND = Not detected at or above the DL N =
Recovery is out of criteria
P = The RPD between two GC columns exceeds 40 %
J = Estimated result <
LOQ and > DL
H = Out of holding time W =
Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 31 of 131

Semivolatile Organic Compounds by GC/MS
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-004
Description: MW-4R Matrix: Aqueous
Date Sampled:02/25/2020 1350 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 3520C 8270E 1 03/04/2020 1607 JCG 03/02/2020 1316 46578
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
Hexachloroethane
67-72-1
8270E
ND
4.0
1.0
ug/L
1
Indeno(1,2,3-c,d)pyrene
193-39-5
8270E
ND
0.80
0.20
ug/L
1
Isophorone
78-59-1
8270E
ND
4.0
0.50
ug/L
1
2-Methylnaphthalene
91-57-6
8270E
ND
0.80
0.20
ug/L
1
2-Methylphenol
95-48-7
8270E
ND
4.0
1.0
ug/L
1
3+4-Methylphenol
106-44-5
8270E
ND
4.0
1.5
ug/L
1
Naphthalene
91-20-3
8270E
ND
0.80
0.20
ug/L
1
2-Nitroaniline
88-74-4
8270E
ND
8.0
0.50
ug/L
1
3-Nitroaniline
99-09-2
8270E
ND
8.0
1.0
ug/L
1
4-Nitroaniline
100-01-6
8270E
ND
8.0
1.5
ug/L
1
Nitrobenzene
98-95-3
8270E
ND
4.0
1.5
ug/L
1
2-Nitrophenol
88-75-5
8270E
ND
4.0
1.0
ug/L
1
4-Nitrophenol
100-02-7
8270E
ND
20
2.0
ug/L
1
N-Nitrosodi-n-propylamine
621-64-7
8270E
ND
4.0
0.50
ug/L
1
N-Nitrosodiphenylamine (Diphenylamine)
86-30-6
8270E
ND
4.0
0.50
ug/L
1
Pentachlorophenol
87-86-5
8270E
ND
20
2.0
ug/L
1
Phenanthrene
85-01-8
8270E
ND
0.80
0.20
ug/L
1
Phenol
108-95-2
8270E
ND
4.0
0.50
ug/L
1
Pyrene
129-00-0
8270E
ND
0.80
0.20
ug/L
1
2,4,5-Trichlorophenol
95-95-4
8270E
ND
4.0
0.50
ug/L
1
2,4,6-Trichlorophenol
88-06-2
8270E
ND
4.0
0.50
ug/L
1
Run 1 Acceptance
Surrogate
Q % Recovery Limits
2-Fluorobiphenyl
70 37-129
2-Fluorophenol
43 24-127
Nitrobenzene-d5
74 38-127
Phenol-d5
57 28-128
Terphenyl-d14
107 10-148
2,4,6-Tribromophenol
89 35-144
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 32 of 131

MADEP EPH (aliphatics) - Unfractionated
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-004
Description: MW-4R Matrix: Aqueous
Date Sampled:02/25/2020 1350 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution
Analysis Date Analyst
Prep Date
Batch
1 MADEP-EPH- MADEP-EPH-04 1
03/03/2020 2100 DAL1
02/27/2020 1528 46298
CAS Analytical
Parameter Number Method
Result Q
LOQ DL Units Run
C19 - C36 Aliphatics - Unfractionated
MADEP-EPH-04
ND
100 100 ug/L 1
C9 - C18 Aliphatics - Unfractionated
MADEP-EPH-04
ND
100 100 ug/L 1
Run 1
Acceptance
Surrogate Q % Recovery
Limits
1-Chloro-octadecane (aliphatic) - Unfractionated 84
40-140
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 33 of 131

MADEP EPH (aromatics) - Unfractionated
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-004
Description: MW-4R Matrix: Aqueous
Date Sampled:02/25/2020 1350 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 MADEP-EPH- MADEP-EPH-04 1 03/03/2020 2100 DAL1 02/27/2020 1528 46299
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
C11 - C22 Aromatics - Unfractionated MADEP-EPH-04 ND 100 100 ug/L 1
Run 1 Acceptance
Surrogate Q % Recovery Limits
o - Terphenyl (aromatic) - Unfractionated 62 40-140
2-Fluorobiphenyl (fractionation 1) 78 40-140
2-Bromonaphthalene (fractionation 2) 80 40-140
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 34 of 131

MADEP VPH (aliphatics)
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-004
Description: MW-4R Matrix: Aqueous
Date Sampled:02/25/2020 1350 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 VPH MADEP-VPH-18-2.1 1 03/04/2020 0033 STM 46799
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
C5 - C8 Aliphatics MADEP-VPH- ND 75 15 ug/L 1
C9 - C12 Aliphatics MADEP-VPH- ND 75 15 ug/L 1
Run 1 Acceptance
Surrogate Q % Recovery Limits
2,5-Dibromotoluene (FID)
74 70-130
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 35 of 131

MADEP VPH (aromatics)
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-004
Description: MW-4R Matrix: Aqueous
Date Sampled:02/25/2020 1350 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 VPH MADEP-VPH-18-2.1 1 03/04/2020 0033 STM 46800
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
C9 - C10 Aromatics MADEP-VPH- ND 25 5.0 ug/L 1
Run 1 Acceptance
Surrogate Q % Recovery Limits
2,5-Dibromotoluene (PID)
72 70-130
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 36 of 131

Volatile Organic Compounds by GC/MS
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-005
Description: MW-5 Matrix: Aqueous
Date Sampled:02/25/2020 1300 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method
Dilution Analysis Date Analyst
Prep Date
Batch
1 5030B 8260D
1 02/29/2020 0123 STM
46473
CAS
Analytical
Parameter
Number
Method
Result Q
LOQ
DL
Units
Run
Acetone
67-64-1
8260D
ND
10
4.0
ug/L
1
Benzene
71-43-2
8260D
ND
0.50
0.40
ug/L
1
Bromodichloromethane
75-27-4
8260D
ND
0.50
0.40
ug/L
1
Bromoform
75-25-2
8260D
ND
0.50
0.40
ug/L
1
Bromomethane (Methyl bromide)
74-83-9
8260D
ND
0.50
0.40
ug/L
1
2-Butanone (MEK)
78-93-3
8260D
ND
10
2.0
ug/L
1
Carbon disulfide
75-15-0
8260D
ND
0.50
0.40
ug/L
1
Carbon tetrachloride
56-23-5
8260D
ND
0.50
0.40
ug/L
1
Chlorobenzene
108-90-7
8260D
ND
0.50
0.40
ug/L
1
Chloroethane
75-00-3
8260D
ND
0.50
0.40
ug/L
1
Chloroform
67-66-3
8260D
ND
0.50
0.40
ug/L
1
Chloromethane (Methyl chloride)
74-87-3
8260D
ND
0.50
0.40
ug/L
1
Cyclohexane
110-82-7
8260D
ND
0.50
0.40
ug/L
1
1,2-Dibromo-3-chloropropane (DBCP)
96-12-8
8260D
ND
0.50
0.40
ug/L
1
Dibromochloromethane
124-48-1
8260D
ND
0.50
0.40
ug/L
1
1,2-Dibromoethane (EDB)
106-93-4
8260D
ND
0.50
0.40
ug/L
1
1,2-Dichlorobenzene
95-50-1
8260D
ND
0.50
0.40
ug/L
1
1,3-Dichlorobenzene
541-73-1
8260D
ND
0.50
0.40
ug/L
1
1,4-Dichlorobenzene
106-46-7
8260D
ND
0.50
0.40
ug/L
1
Dichlorodifluoromethane
75-71-8
8260D
ND
0.50
0.40
ug/L
1
1,1-Dichloroethane
75-34-3
8260D
ND
0.50
0.40
ug/L
1
1,2-Dichloroethane
107-06-2
8260D
ND
0.50
0.40
ug/L
1
1, 1 -Dichloroethene
75-35-4
8260D
ND
0.50
0.40
ug/L
1
cis- 1,2-Dichloroethene
156-59-2
8260D
ND
0.50
0.40
ug/L
1
trans-1,2-Dichloroethene
156-60-5
8260D
ND
0.50
0.40
ug/L
1
1,2-Dichloropropane
78-87-5
8260D
ND
0.50
0.40
ug/L
1
cis- 1,3-Dichloropropene
10061-01-5
8260D
ND
0.50
0.40
ug/L
1
trans-1,3-Dichloropropene
10061-02-6
8260D
ND
0.50
0.40
ug/L
1
Ethylbenzene
100-41-4
8260D
ND
0.50
0.40
ug/L
1
2-Hexanone
591-78-6
8260D
ND
10
2.0
ug/L
1
Isopropylbenzene
98-82-8
8260D
ND
0.50
0.40
ug/L
1
Methyl acetate
79-20-9
8260D
ND
1.0
0.40
ug/L
1
Methyl tertiary butyl ether (MTBE)
1634-04-4
8260D
ND
0.50
0.40
ug/L
1
4-Methyl-2-pentanone
108-10-1
8260D
ND
10
2.0
ug/L
1
Methylcyclohexane
108-87-2
8260D
ND
5.0
0.40
ug/L
1
Methylene chloride
75-09-2
8260D
ND
0.50
0.40
ug/L
1
Styrene
100-42-5
8260D
ND
0.50
0.41
ug/L
1
1,1,2,2-Tetrachloroethane
79-34-5
8260D
ND
0.50
0.40
ug/L
1
Tetrachloroethene
127-18-4
8260D
ND
0.50
0.40
ug/L
1
Toluene
108-88-3
8260D
ND
0.50
0.40
ug/L
1
1,1,2-Trichloro-1,2,2-Trifluoroethane
76-13-1
8260D
ND
1.0
0.42
ug/L
1
1,2,4-Trichlorobenzene
120-82-1
8260D
ND
0.50
0.40
ug/L
1
1,1,1-Trichloroethane
71-55-6
8260D
ND
0.50
0.40
ug/L
1
1,1,2-Trichloroethane
79-00-5
8260D
ND
0.50
0.40
ug/L
1
LOQ = Limit of Quantitation B = Detected in the method blank
E = Quantitation of
compound exceeded the calibration range
DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria
P = The RPD between two GC columns exceeds 40 %
J = Estimated result <
LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 37 of 131

Volatile Organic Compounds by GC/MS
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-005
Description: MW-5 Matrix: Aqueous
Date Sampled:02/25/2020 1300 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 5030B 8260D 1 02/29/2020 0123 STM 46473
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
Trichloroethene
79-01-6
8260D
ND
0.50
0.40
ug/L
1
Trichlorofluoromethane
75-69-4
8260D
ND
0.50
0.40
ug/L
1
Vinyl chloride
75-01-4
8260D
ND
0.50
0.40
ug/L
1
Xylenes (total)
1330-20-7
8260D
ND
1.0
0.40
ug/L
1
Run 1 Acceptance
Surrogate
Q % Recovery Limits
Bromofluorobenzene
1,2-Dichloroethane-d4
Toluene-d8
105 70-130
109 70-130
112 70-130
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 38 of 131

Semivolatile Organic Compounds by GC/MS
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-005
Description: MW-5 Matrix: Aqueous
Date Sampled:02/25/2020 1300 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method
Analytical Method
Dilution Analysis Date Analyst
Prep Date
Batch
1 3520C
8270E
1 03/04/2020 1633 JCG
03/02/2020 1316 46578
CAS
Analytical
Parameter
Number
Method
Result Q
LOQ
DL
Units
Run
Acenaphthene
83-32-9
8270E
ND
0.80
0.20
ug/L
1
Acenaphthylene
208-96-8
8270E
ND
0.80
0.20
ug/L
1
Acetophenone
98-86-2
8270E
ND
4.0
0.50
ug/L
1
Anthracene
120-12-7
8270E
ND
0.80
0.20
ug/L
1
Atrazine
1912-24-9
8270E
ND
4.0
0.50
ug/L
1
Benzaldehyde
100-52-7
8270E
ND
8.0
0.50
ug/L
1
Benzo(a)anthracene
56-55-3
8270E
ND
0.80
0.20
ug/L
1
Benzo(a)pyrene
50-32-8
8270E
ND
0.80
0.20
ug/L
1
Benzo(b)fluoranthene
205-99-2
8270E
ND
0.80
0.20
ug/L
1
Benzo(g,h,i)perylene
191-24-2
8270E
ND
0.80
0.20
ug/L
1
Benzo(k)fluoranthene
207-08-9
8270E
ND
0.80
0.20
ug/L
1
1,1'-Biphenyl
92-52-4
8270E
ND
4.0
0.50
ug/L
1
4-Bromophenyl phenyl ether
101-55-3
8270E
ND
4.0
0.50
ug/L
1
Butyl benzyl phthalate
85-68-7
8270E
ND
4.0
0.50
ug/L
1
Caprolactam
105-60-2
8270E
ND
8.0
1.0
ug/L
1
Carbazole
86-74-8
8270E
ND
4.0
0.50
ug/L
1
bis (2-Chloro-1-methylethyl) ether
108-60-1
8270E
ND
4.0
0.50
ug/L
1
4-Chloro-3-methyl phenol
59-50-7
8270E
ND
4.0
0.50
ug/L
1
4-Chloroaniline
106-47-8
8270E
ND
8.0
0.50
ug/L
1
bis(2-Chloroethoxy)methane
111-91-1
8270E
ND
4.0
0.50
ug/L
1
bis(2-Chloroethyl)ether
111-44-4
8270E
ND
4.0
0.50
ug/L
1
2-Chloronaphthalene
91-58-7
8270E
ND
4.0
0.50
ug/L
1
2-Chlorophenol
95-57-8
8270E
ND
4.0
0.50
ug/L
1
4-Chlorophenyl phenyl ether
7005-72-3
8270E
ND
4.0
0.50
ug/L
1
Chrysene
218-01-9
8270E
ND
0.80
0.20
ug/L
1
Dibenzo(a,h)anthracene
53-70-3
8270E
ND
0.80
0.20
ug/L
1
Dibenzofuran
132-64-9
8270E
ND
4.0
0.50
ug/L
1
3,3'-Dichlorobenzidine
91-94-1
8270E
ND
4.0
1.8
ug/L
1
2,4-Dichlorophenol
120-83-2
8270E
ND
8.0
1.0
ug/L
1
Diethylphthalate
84-66-2
8270E
ND
4.0
0.50
ug/L
1
Dimethyl phthalate
131-11-3
8270E
ND
4.0
0.50
ug/L
1
2,4-Dimethylphenol
105-67-9
8270E
ND
4.0
1.0
ug/L
1
Di-n-butyl phthalate
84-74-2
8270E
ND
4.0
0.50
ug/L
1
4,6-Dinitro-2-methylphenol
534-52-1
8270E
ND
20
1.0
ug/L
1
2,4-Dinitrophenol
51-28-5
8270E
ND
20
1.0
ug/L
1
2,4-Dinitrotoluene
121-14-2
8270E
ND
8.0
0.50
ug/L
1
2,6-Dinitrotoluene
606-20-2
8270E
ND
8.0
0.50
ug/L
1
Di-n-octylphthalate
117-84-0
8270E
ND
4.0
0.50
ug/L
1
bis(2-Ethylhexyl)phthalate
117-81-7
8270E
ND
4.0
0.50
ug/L
1
Fluoranthene
206-44-0
8270E
ND
0.80
0.20
ug/L
1
Fluorene
86-73-7
8270E
ND
0.80
0.20
ug/L
1
Hexachlorobenzene
118-74-1
8270E
ND
4.0
0.50
ug/L
1
Hexachlorobutadiene
87-68-3
8270E
ND
4.0
0.50
ug/L
1
Hexachlorocyclopentadiene
77-47-4
8270E
ND
20
2.0
ug/L
1
LOQ = Limit of Quantitation B =
Detected in the method blank
E = Quantitation of
compound exceeded the calibration range
DL = Detection Limit
ND = Not detected at or above the DL N =
Recovery is out of criteria
P = The RPD between two GC columns exceeds 40 %
J = Estimated result <
LOQ and > DL
H = Out of holding time W =
Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 39 of 131

Semivolatile Organic Compounds by GC/MS
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-005
Description: MW-5 Matrix: Aqueous
Date Sampled:02/25/2020 1300 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 3520C 8270E 1 03/04/2020 1633 JCG 03/02/2020 1316 46578
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
Hexachloroethane
67-72-1
8270E
ND
4.0
1.0
ug/L
1
Indeno(1,2,3-c,d)pyrene
193-39-5
8270E
ND
0.80
0.20
ug/L
1
Isophorone
78-59-1
8270E
ND
4.0
0.50
ug/L
1
2-Methylnaphthalene
91-57-6
8270E
ND
0.80
0.20
ug/L
1
2-Methylphenol
95-48-7
8270E
ND
4.0
1.0
ug/L
1
3+4-Methylphenol
106-44-5
8270E
ND
4.0
1.5
ug/L
1
Naphthalene
91-20-3
8270E
ND
0.80
0.20
ug/L
1
2-Nitroaniline
88-74-4
8270E
ND
8.0
0.50
ug/L
1
3-Nitroaniline
99-09-2
8270E
ND
8.0
1.0
ug/L
1
4-Nitroaniline
100-01-6
8270E
ND
8.0
1.5
ug/L
1
Nitrobenzene
98-95-3
8270E
ND
4.0
1.5
ug/L
1
2-Nitrophenol
88-75-5
8270E
ND
4.0
1.0
ug/L
1
4-Nitrophenol
100-02-7
8270E
ND
20
2.0
ug/L
1
N-Nitrosodi-n-propylamine
621-64-7
8270E
ND
4.0
0.50
ug/L
1
N-Nitrosodiphenylamine (Diphenylamine)
86-30-6
8270E
ND
4.0
0.50
ug/L
1
Pentachlorophenol
87-86-5
8270E
ND
20
2.0
ug/L
1
Phenanthrene
85-01-8
8270E
ND
0.80
0.20
ug/L
1
Phenol
108-95-2
8270E
ND
4.0
0.50
ug/L
1
Pyrene
129-00-0
8270E
ND
0.80
0.20
ug/L
1
2,4,5-Trichlorophenol
95-95-4
8270E
ND
4.0
0.50
ug/L
1
2,4,6-Trichlorophenol
88-06-2
8270E
ND
4.0
0.50
ug/L
1
Run 1 Acceptance
Surrogate
Q % Recovery Limits
2-Fluorobiphenyl
74 37-129
2-Fluorophenol
45 24-127
Nitrobenzene-d5
80 38-127
Phenol-d5
68 28-128
Terphenyl-d14
109 10-148
2,4,6-Tribromophenol
91 35-144
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 40 of 131

MADEP EPH (aliphatics) - Unfractionated
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-005
Description: MW-5 Matrix: Aqueous
Date Sampled:02/25/2020 1300 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution
Analysis Date Analyst
Prep Date
Batch
1 MADEP-EPH- MADEP-EPH-04 1
03/03/2020 2130 DAL1
02/27/2020 1528 46298
CAS Analytical
Parameter Number Method
Result Q
LOQ DL Units Run
C19 - C36 Aliphatics - Unfractionated
MADEP-EPH-04
ND
100 100 ug/L 1
C9 - C18 Aliphatics - Unfractionated
MADEP-EPH-04
ND
100 100 ug/L 1
Run 1
Acceptance
Surrogate Q % Recovery
Limits
1-Chloro-octadecane (aliphatic) - Unfractionated 80
40-140
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 41 of 131

MADEP EPH (aromatics) - Unfractionated
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-005
Description: MW-5 Matrix: Aqueous
Date Sampled:02/25/2020 1300 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 MADEP-EPH- MADEP-EPH-04 1 03/03/2020 2130 DAL1 02/27/2020 1528 46299
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
C11 - C22 Aromatics - Unfractionated MADEP-EPH-04 ND 100 100 ug/L 1
Run 1 Acceptance
Surrogate Q % Recovery Limits
o - Terphenyl (aromatic) - Unfractionated 60 40-140
2-Fluorobiphenyl (fractionation 1) 77 40-140
2-Bromonaphthalene (fractionation 2) 80 40-140
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 42 of 131

MADEP VPH (aliphatics)
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-005
Description: MW-5 Matrix: Aqueous
Date Sampled:02/25/2020 1300 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 VPH MADEP-VPH-18-2.1 1 03/04/2020 0101 STM 46799
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
C5 - C8 Aliphatics MADEP-VPH- ND 75 15 ug/L 1
C9 - C12 Aliphatics MADEP-VPH- ND 75 15 ug/L 1
Run 1 Acceptance
Surrogate Q % Recovery Limits
2,5-Dibromotoluene (FID)
75 70-130
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 43 of 131

MADEP VPH (aromatics)
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-005
Description: MW-5 Matrix: Aqueous
Date Sampled:02/25/2020 1300 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 VPH MADEP-VPH-18-2.1 1 03/04/2020 0101 STM 46800
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
C9 - C10 Aromatics MADEP-VPH- ND 25 5.0 ug/L 1
Run 1 Acceptance
Surrogate Q % Recovery Limits
2,5-Dibromotoluene (PID)
74 70-130
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 44 of 131

Volatile Organic Compounds by GC/MS
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-006
Description: MW-6R Matrix: Aqueous
Date Sampled:02/25/2020 1445 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method
Dilution Analysis Date Analyst
Prep Date
Batch
1 5030B 8260D
1 02/29/2020 0148 STM
46473
CAS
Analytical
Parameter
Number
Method
Result Q
LOQ
DL
Units
Run
Acetone
67-64-1
8260D
ND
10
4.0
ug/L
1
Benzene
71-43-2
8260D
ND
0.50
0.40
ug/L
1
Bromodichloromethane
75-27-4
8260D
ND
0.50
0.40
ug/L
1
Bromoform
75-25-2
8260D
ND
0.50
0.40
ug/L
1
Bromomethane (Methyl bromide)
74-83-9
8260D
ND
0.50
0.40
ug/L
1
2-Butanone (MEK)
78-93-3
8260D
ND
10
2.0
ug/L
1
Carbon disulfide
75-15-0
8260D
ND
0.50
0.40
ug/L
1
Carbon tetrachloride
56-23-5
8260D
ND
0.50
0.40
ug/L
1
Chlorobenzene
108-90-7
8260D
ND
0.50
0.40
ug/L
1
Chloroethane
75-00-3
8260D
ND
0.50
0.40
ug/L
1
Chloroform
67-66-3
8260D
ND
0.50
0.40
ug/L
1
Chloromethane (Methyl chloride)
74-87-3
8260D
ND
0.50
0.40
ug/L
1
Cyclohexane
110-82-7
8260D
ND
0.50
0.40
ug/L
1
1,2-Dibromo-3-chloropropane (DBCP)
96-12-8
8260D
ND
0.50
0.40
ug/L
1
Dibromochloromethane
124-48-1
8260D
ND
0.50
0.40
ug/L
1
1,2-Dibromoethane (EDB)
106-93-4
8260D
ND
0.50
0.40
ug/L
1
1,2-Dichlorobenzene
95-50-1
8260D
ND
0.50
0.40
ug/L
1
1,3-Dichlorobenzene
541-73-1
8260D
ND
0.50
0.40
ug/L
1
1,4-Dichlorobenzene
106-46-7
8260D
ND
0.50
0.40
ug/L
1
Dichlorodifluoromethane
75-71-8
8260D
ND
0.50
0.40
ug/L
1
1,1-Dichloroethane
75-34-3
8260D
ND
0.50
0.40
ug/L
1
1,2-Dichloroethane
107-06-2
8260D
ND
0.50
0.40
ug/L
1
1, 1 -Dichloroethene
75-35-4
8260D
ND
0.50
0.40
ug/L
1
cis- 1,2-Dichloroethene
156-59-2
8260D
ND
0.50
0.40
ug/L
1
trans-1,2-Dichloroethene
156-60-5
8260D
ND
0.50
0.40
ug/L
1
1,2-Dichloropropane
78-87-5
8260D
ND
0.50
0.40
ug/L
1
cis- 1,3-Dichloropropene
10061-01-5
8260D
ND
0.50
0.40
ug/L
1
trans-1,3-Dichloropropene
10061-02-6
8260D
ND
0.50
0.40
ug/L
1
Ethylbenzene
100-41-4
8260D
ND
0.50
0.40
ug/L
1
2-Hexanone
591-78-6
8260D
ND
10
2.0
ug/L
1
Isopropylbenzene
98-82-8
8260D
ND
0.50
0.40
ug/L
1
Methyl acetate
79-20-9
8260D
ND
1.0
0.40
ug/L
1
Methyl tertiary butyl ether (MTBE)
1634-04-4
8260D
ND
0.50
0.40
ug/L
1
4-Methyl-2-pentanone
108-10-1
8260D
ND
10
2.0
ug/L
1
Methylcyclohexane
108-87-2
8260D
ND
5.0
0.40
ug/L
1
Methylene chloride
75-09-2
8260D
ND
0.50
0.40
ug/L
1
Styrene
100-42-5
8260D
ND
0.50
0.41
ug/L
1
1,1,2,2-Tetrachloroethane
79-34-5
8260D
ND
0.50
0.40
ug/L
1
Tetrachloroethene
127-18-4
8260D
ND
0.50
0.40
ug/L
1
Toluene
108-88-3
8260D
ND
0.50
0.40
ug/L
1
1,1,2-Trichloro-1,2,2-Trifluoroethane
76-13-1
8260D
ND
1.0
0.42
ug/L
1
1,2,4-Trichlorobenzene
120-82-1
8260D
ND
0.50
0.40
ug/L
1
1,1,1-Trichloroethane
71-55-6
8260D
ND
0.50
0.40
ug/L
1
1,1,2-Trichloroethane
79-00-5
8260D
ND
0.50
0.40
ug/L
1
LOQ = Limit of Quantitation B = Detected in the method blank
E = Quantitation of
compound exceeded the calibration range
DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria
P = The RPD between two GC columns exceeds 40 %
J = Estimated result <
LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 45 of 131

Volatile Organic Compounds by GC/MS
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-006
Description: MW-6R Matrix: Aqueous
Date Sampled:02/25/2020 1445 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 5030B 8260D 1 02/29/2020 0148 STM 46473
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
Trichloroethene
79-01-6
8260D
ND
0.50
0.40
ug/L
1
Trichlorofluoromethane
75-69-4
8260D
ND
0.50
0.40
ug/L
1
Vinyl chloride
75-01-4
8260D
ND
0.50
0.40
ug/L
1
Xylenes (total)
1330-20-7
8260D
ND
1.0
0.40
ug/L
1
Run 1 Acceptance
Surrogate
Q % Recovery Limits
Bromofluorobenzene
1,2-Dichloroethane-d4
Toluene-d8
105 70-130
111 70-130
115 70-130
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 46 of 131

Semivolatile Organic Compounds by GC/MS
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-006
Description: MW-6R Matrix: Aqueous
Date Sampled:02/25/2020 1445 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method
Analytical Method
Dilution Analysis Date Analyst
Prep Date
Batch
1 3520C
8270E
1 03/04/2020 1658 JCG
03/02/2020 1316 46578
CAS
Analytical
Parameter
Number
Method
Result Q
LOQ
DL
Units
Run
Acenaphthene
83-32-9
8270E
0.29 J
0.80
0.20
ug/L
1
Acenaphthylene
208-96-8
8270E
ND
0.80
0.20
ug/L
1
Acetophenone
98-86-2
8270E
ND
4.0
0.50
ug/L
1
Anthracene
120-12-7
8270E
ND
0.80
0.20
ug/L
1
Atrazine
1912-24-9
8270E
ND
4.0
0.50
ug/L
1
Benzaldehyde
100-52-7
8270E
ND
8.0
0.50
ug/L
1
Benzo(a)anthracene
56-55-3
8270E
ND
0.80
0.20
ug/L
1
Benzo(a)pyrene
50-32-8
8270E
ND
0.80
0.20
ug/L
1
Benzo(b)fluoranthene
205-99-2
8270E
ND
0.80
0.20
ug/L
1
Benzo(g,h,i)perylene
191-24-2
8270E
ND
0.80
0.20
ug/L
1
Benzo(k)fluoranthene
207-08-9
8270E
ND
0.80
0.20
ug/L
1
1,1'-Biphenyl
92-52-4
8270E
ND
4.0
0.50
ug/L
1
4-Bromophenyl phenyl ether
101-55-3
8270E
ND
4.0
0.50
ug/L
1
Butyl benzyl phthalate
85-68-7
8270E
ND
4.0
0.50
ug/L
1
Caprolactam
105-60-2
8270E
ND
8.0
1.0
ug/L
1
Carbazole
86-74-8
8270E
ND
4.0
0.50
ug/L
1
bis (2-Chloro-1-methylethyl) ether
108-60-1
8270E
ND
4.0
0.50
ug/L
1
4-Chloro-3-methyl phenol
59-50-7
8270E
ND
4.0
0.50
ug/L
1
4-Chloroaniline
106-47-8
8270E
ND
8.0
0.50
ug/L
1
bis(2-Chloroethoxy)methane
111-91-1
8270E
ND
4.0
0.50
ug/L
1
bis(2-Chloroethyl)ether
111-44-4
8270E
ND
4.0
0.50
ug/L
1
2-Chloronaphthalene
91-58-7
8270E
ND
4.0
0.50
ug/L
1
2-Chlorophenol
95-57-8
8270E
ND
4.0
0.50
ug/L
1
4-Chlorophenyl phenyl ether
7005-72-3
8270E
ND
4.0
0.50
ug/L
1
Chrysene
218-01-9
8270E
ND
0.80
0.20
ug/L
1
Dibenzo(a,h)anthracene
53-70-3
8270E
ND
0.80
0.20
ug/L
1
Dibenzofuran
132-64-9
8270E
ND
4.0
0.50
ug/L
1
3,3'-Dichlorobenzidine
91-94-1
8270E
ND
4.0
1.8
ug/L
1
2,4-Dichlorophenol
120-83-2
8270E
ND
8.0
1.0
ug/L
1
Diethylphthalate
84-66-2
8270E
ND
4.0
0.50
ug/L
1
Dimethyl phthalate
131-11-3
8270E
ND
4.0
0.50
ug/L
1
2,4-Dimethylphenol
105-67-9
8270E
ND
4.0
1.0
ug/L
1
Di-n-butyl phthalate
84-74-2
8270E
ND
4.0
0.50
ug/L
1
4,6-Dinitro-2-methylphenol
534-52-1
8270E
ND
20
1.0
ug/L
1
2,4-Dinitrophenol
51-28-5
8270E
ND
20
1.0
ug/L
1
2,4-Dinitrotoluene
121-14-2
8270E
ND
8.0
0.50
ug/L
1
2,6-Dinitrotoluene
606-20-2
8270E
ND
8.0
0.50
ug/L
1
Di-n-octylphthalate
117-84-0
8270E
ND
4.0
0.50
ug/L
1
bis(2-Ethylhexyl)phthalate
117-81-7
8270E
ND
4.0
0.50
ug/L
1
Fluoranthene
206-44-0
8270E
ND
0.80
0.20
ug/L
1
Fluorene
86-73-7
8270E
ND
0.80
0.20
ug/L
1
Hexachlorobenzene
118-74-1
8270E
ND
4.0
0.50
ug/L
1
Hexachlorobutadiene
87-68-3
8270E
ND
4.0
0.50
ug/L
1
Hexachlorocyclopentadiene
77-47-4
8270E
ND
20
2.0
ug/L
1
LOQ = Limit of Quantitation B =
Detected in the method blank
E = Quantitation of
compound exceeded the calibration range
DL = Detection Limit
ND = Not detected at or above the DL N =
Recovery is out of criteria
P = The RPD between two GC columns exceeds 40 %
J = Estimated result <
LOQ and > DL
H = Out of holding time W =
Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 47 of 131

Semivolatile Organic Compounds by GC/MS
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-006
Description: MW-6R Matrix: Aqueous
Date Sampled:02/25/2020 1445 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 3520C 8270E 1 03/04/2020 1658 JCG 03/02/2020 1316 46578
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
Hexachloroethane
67-72-1
8270E
ND
4.0
1.0
ug/L
1
Indeno(1,2,3-c,d)pyrene
193-39-5
8270E
ND
0.80
0.20
ug/L
1
Isophorone
78-59-1
8270E
ND
4.0
0.50
ug/L
1
2-Methylnaphthalene
91-57-6
8270E
ND
0.80
0.20
ug/L
1
2-Methylphenol
95-48-7
8270E
ND
4.0
1.0
ug/L
1
3+4-Methylphenol
106-44-5
8270E
ND
4.0
1.5
ug/L
1
Naphthalene
91-20-3
8270E
ND
0.80
0.20
ug/L
1
2-Nitroaniline
88-74-4
8270E
ND
8.0
0.50
ug/L
1
3-Nitroaniline
99-09-2
8270E
ND
8.0
1.0
ug/L
1
4-Nitroaniline
100-01-6
8270E
ND
8.0
1.5
ug/L
1
Nitrobenzene
98-95-3
8270E
ND
4.0
1.5
ug/L
1
2-Nitrophenol
88-75-5
8270E
ND
4.0
1.0
ug/L
1
4-Nitrophenol
100-02-7
8270E
ND
20
2.0
ug/L
1
N-Nitrosodi-n-propylamine
621-64-7
8270E
ND
4.0
0.50
ug/L
1
N-Nitrosodiphenylamine (Diphenylamine)
86-30-6
8270E
ND
4.0
0.50
ug/L
1
Pentachlorophenol
87-86-5
8270E
ND
20
2.0
ug/L
1
Phenanthrene
85-01-8
8270E
ND
0.80
0.20
ug/L
1
Phenol
108-95-2
8270E
ND
4.0
0.50
ug/L
1
Pyrene
129-00-0
8270E
ND
0.80
0.20
ug/L
1
2,4,5-Trichlorophenol
95-95-4
8270E
ND
4.0
0.50
ug/L
1
2,4,6-Trichlorophenol
88-06-2
8270E
ND
4.0
0.50
ug/L
1
Run 1 Acceptance
Surrogate
Q % Recovery Limits
2-Fluorobiphenyl
83 37-129
2-Fluorophenol
47 24-127
Nitrobenzene-d5
88 38-127
Phenol-d5
69 28-128
Terphenyl-d14
110 10-148
2,4,6-Tribromophenol
101 35-144
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 48 of 131

MADEP EPH (aromatics)
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-006
Description: MW-6R Matrix: Aqueous
Date Sampled:02/25/2020 1445 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 MADEP-EPH- MADEP-EPH-04 1 03/09/2020 1717 JJG 02/27/2020 1528 46911
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
C11 - C22 Aromatics MADEP-EPH-04 ND 100 100 ug/L 1
Run 1 Acceptance
Surrogate Q % Recovery Limits
o - Terphenyl (aromatic)
2-Fluorobiphenyl (fractionation 1)
2-Bromonaphthalene (fractionation 2)
65 40-140
73 40-140
55 40-140
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 49 of 131

MADEP EPH (aliphatics)
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-006
Description: MW-6R Matrix: Aqueous
Date Sampled:02/25/2020 1445 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 MADEP-EPH- MADEP-EPH-04 1 03/09/2020 1345 JJG 02/27/2020 1528 46910
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
C9 - C18 Aliphatics MADEP-EPH-04 ND 100 100 ug/L 1
C19 - C36 Aliphatics MADEP-EPH-04 ND 100 100 ug/L 1
Run 1 Acceptance
Surrogate Q % Recovery Limits
1-Chloro-octadecane (aliphatic)
71 40-140
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 50 of 131

MADEP VPH (aliphatics)
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-006
Description: MW-6R Matrix: Aqueous
Date Sampled:02/25/2020 1445 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 VPH MADEP-VPH-18-2.1 1 03/04/2020 0130 STM 46799
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
C5 - C8 Aliphatics MADEP-VPH- ND 75 15 ug/L 1
C9 - C12 Aliphatics MADEP-VPH- 31 J 75 15 ug/L 1
Run 1 Acceptance
Surrogate Q % Recovery Limits
2,5-Dibromotoluene (FID)
73 70-130
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 51 of 131

MADEP VPH (aromatics)
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-006
Description: MW-6R Matrix: Aqueous
Date Sampled:02/25/2020 1445 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 VPH MADEP-VPH-18-2.1 1 03/04/2020 0130 STM 46800
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
C9 - C10 Aromatics MADEP-VPH- 38 25 5.0 ug/L 1
Run 1 Acceptance
Surrogate Q % Recovery Limits
2,5-Dibromotoluene (PID)
84 70-130
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 52 of 131

Volatile Organic Compounds by GC/MS
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-007
Description: MW-7 Matrix: Aqueous
Date Sampled:02/25/2020 1225 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method
Dilution Analysis Date Analyst
Prep Date
Batch
1 5030B 8260D
1 02/29/2020 0214 STM
46473
CAS
Analytical
Parameter
Number
Method
Result Q
LOQ
DL
Units
Run
Acetone
67-64-1
8260D
ND
10
4.0
ug/L
1
Benzene
71-43-2
8260D
ND
0.50
0.40
ug/L
1
Bromodichloromethane
75-27-4
8260D
ND
0.50
0.40
ug/L
1
Bromoform
75-25-2
8260D
ND
0.50
0.40
ug/L
1
Bromomethane (Methyl bromide)
74-83-9
8260D
ND
0.50
0.40
ug/L
1
2-Butanone (MEK)
78-93-3
8260D
ND
10
2.0
ug/L
1
Carbon disulfide
75-15-0
8260D
ND
0.50
0.40
ug/L
1
Carbon tetrachloride
56-23-5
8260D
ND
0.50
0.40
ug/L
1
Chlorobenzene
108-90-7
8260D
ND
0.50
0.40
ug/L
1
Chloroethane
75-00-3
8260D
ND
0.50
0.40
ug/L
1
Chloroform
67-66-3
8260D
ND
0.50
0.40
ug/L
1
Chloromethane (Methyl chloride)
74-87-3
8260D
ND
0.50
0.40
ug/L
1
Cyclohexane
110-82-7
8260D
ND
0.50
0.40
ug/L
1
1,2-Dibromo-3-chloropropane (DBCP)
96-12-8
8260D
ND
0.50
0.40
ug/L
1
Dibromochloromethane
124-48-1
8260D
ND
0.50
0.40
ug/L
1
1,2-Dibromoethane (EDB)
106-93-4
8260D
ND
0.50
0.40
ug/L
1
1,2-Dichlorobenzene
95-50-1
8260D
ND
0.50
0.40
ug/L
1
1,3-Dichlorobenzene
541-73-1
8260D
ND
0.50
0.40
ug/L
1
1,4-Dichlorobenzene
106-46-7
8260D
ND
0.50
0.40
ug/L
1
Dichlorodifluoromethane
75-71-8
8260D
ND
0.50
0.40
ug/L
1
1,1-Dichloroethane
75-34-3
8260D
ND
0.50
0.40
ug/L
1
1,2-Dichloroethane
107-06-2
8260D
ND
0.50
0.40
ug/L
1
1, 1 -Dichloroethene
75-35-4
8260D
ND
0.50
0.40
ug/L
1
cis- 1,2-Dichloroethene
156-59-2
8260D
ND
0.50
0.40
ug/L
1
trans-1,2-Dichloroethene
156-60-5
8260D
ND
0.50
0.40
ug/L
1
1,2-Dichloropropane
78-87-5
8260D
ND
0.50
0.40
ug/L
1
cis- 1,3-Dichloropropene
10061-01-5
8260D
ND
0.50
0.40
ug/L
1
trans-1,3-Dichloropropene
10061-02-6
8260D
ND
0.50
0.40
ug/L
1
Ethylbenzene
100-41-4
8260D
ND
0.50
0.40
ug/L
1
2-Hexanone
591-78-6
8260D
ND
10
2.0
ug/L
1
Isopropylbenzene
98-82-8
8260D
ND
0.50
0.40
ug/L
1
Methyl acetate
79-20-9
8260D
ND
1.0
0.40
ug/L
1
Methyl tertiary butyl ether (MTBE)
1634-04-4
8260D
ND
0.50
0.40
ug/L
1
4-Methyl-2-pentanone
108-10-1
8260D
ND
10
2.0
ug/L
1
Methylcyclohexane
108-87-2
8260D
ND
5.0
0.40
ug/L
1
Methylene chloride
75-09-2
8260D
ND
0.50
0.40
ug/L
1
Styrene
100-42-5
8260D
ND
0.50
0.41
ug/L
1
1,1,2,2-Tetrachloroethane
79-34-5
8260D
ND
0.50
0.40
ug/L
1
Tetrachloroethene
127-18-4
8260D
ND
0.50
0.40
ug/L
1
Toluene
108-88-3
8260D
ND
0.50
0.40
ug/L
1
1,1,2-Trichloro-1,2,2-Trifluoroethane
76-13-1
8260D
ND
1.0
0.42
ug/L
1
1,2,4-Trichlorobenzene
120-82-1
8260D
ND
0.50
0.40
ug/L
1
1,1,1-Trichloroethane
71-55-6
8260D
ND
0.50
0.40
ug/L
1
1,1,2-Trichloroethane
79-00-5
8260D
ND
0.50
0.40
ug/L
1
LOQ = Limit of Quantitation B = Detected in the method blank
E = Quantitation of
compound exceeded the calibration range
DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria
P = The RPD between two GC columns exceeds 40 %
J = Estimated result <
LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 53 of 131

Volatile Organic Compounds by GC/MS
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-007
Description: MW-7 Matrix: Aqueous
Date Sampled:02/25/2020 1225 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 5030B 8260D 1 02/29/2020 0214 STM 46473
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
Trichloroethene
79-01-6
8260D
ND
0.50
0.40
ug/L
1
Trichlorofluoromethane
75-69-4
8260D
ND
0.50
0.40
ug/L
1
Vinyl chloride
75-01-4
8260D
ND
0.50
0.40
ug/L
1
Xylenes (total)
1330-20-7
8260D
ND
1.0
0.40
ug/L
1
Run 1 Acceptance
Surrogate
Q % Recovery Limits
Bromofluorobenzene
1,2-Dichloroethane-d4
Toluene-d8
104 70-130
109 70-130
114 70-130
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 54 of 131

Semivolatile Organic Compounds by GC/MS
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-007
Description: MW-7 Matrix: Aqueous
Date Sampled:02/25/2020 1225 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method
Analytical Method
Dilution Analysis Date Analyst
Prep Date
Batch
1 3520C
8270E
1 03/04/2020 1723 JCG
03/02/2020 1316 46578
CAS
Analytical
Parameter
Number
Method
Result Q
LOQ
DL
Units
Run
Acenaphthene
83-32-9
8270E
ND
0.80
0.20
ug/L
1
Acenaphthylene
208-96-8
8270E
ND
0.80
0.20
ug/L
1
Acetophenone
98-86-2
8270E
ND
4.0
0.50
ug/L
1
Anthracene
120-12-7
8270E
ND
0.80
0.20
ug/L
1
Atrazine
1912-24-9
8270E
ND
4.0
0.50
ug/L
1
Benzaldehyde
100-52-7
8270E
ND
8.0
0.50
ug/L
1
Benzo(a)anthracene
56-55-3
8270E
ND
0.80
0.20
ug/L
1
Benzo(a)pyrene
50-32-8
8270E
ND
0.80
0.20
ug/L
1
Benzo(b)fluoranthene
205-99-2
8270E
ND
0.80
0.20
ug/L
1
Benzo(g,h,i)perylene
191-24-2
8270E
ND
0.80
0.20
ug/L
1
Benzo(k)fluoranthene
207-08-9
8270E
ND
0.80
0.20
ug/L
1
1,1'-Biphenyl
92-52-4
8270E
ND
4.0
0.50
ug/L
1
4-Bromophenyl phenyl ether
101-55-3
8270E
ND
4.0
0.50
ug/L
1
Butyl benzyl phthalate
85-68-7
8270E
ND
4.0
0.50
ug/L
1
Caprolactam
105-60-2
8270E
ND
8.0
1.0
ug/L
1
Carbazole
86-74-8
8270E
ND
4.0
0.50
ug/L
1
bis (2-Chloro-1-methylethyl) ether
108-60-1
8270E
ND
4.0
0.50
ug/L
1
4-Chloro-3-methyl phenol
59-50-7
8270E
ND
4.0
0.50
ug/L
1
4-Chloroaniline
106-47-8
8270E
ND
8.0
0.50
ug/L
1
bis(2-Chloroethoxy)methane
111-91-1
8270E
ND
4.0
0.50
ug/L
1
bis(2-Chloroethyl)ether
111-44-4
8270E
ND
4.0
0.50
ug/L
1
2-Chloronaphthalene
91-58-7
8270E
ND
4.0
0.50
ug/L
1
2-Chlorophenol
95-57-8
8270E
ND
4.0
0.50
ug/L
1
4-Chlorophenyl phenyl ether
7005-72-3
8270E
ND
4.0
0.50
ug/L
1
Chrysene
218-01-9
8270E
ND
0.80
0.20
ug/L
1
Dibenzo(a,h)anthracene
53-70-3
8270E
ND
0.80
0.20
ug/L
1
Dibenzofuran
132-64-9
8270E
ND
4.0
0.50
ug/L
1
3,3'-Dichlorobenzidine
91-94-1
8270E
ND
4.0
1.8
ug/L
1
2,4-Dichlorophenol
120-83-2
8270E
ND
8.0
1.0
ug/L
1
Diethylphthalate
84-66-2
8270E
ND
4.0
0.50
ug/L
1
Dimethyl phthalate
131-11-3
8270E
ND
4.0
0.50
ug/L
1
2,4-Dimethylphenol
105-67-9
8270E
ND
4.0
1.0
ug/L
1
Di-n-butyl phthalate
84-74-2
8270E
ND
4.0
0.50
ug/L
1
4,6-Dinitro-2-methylphenol
534-52-1
8270E
ND
20
1.0
ug/L
1
2,4-Dinitrophenol
51-28-5
8270E
ND
20
1.0
ug/L
1
2,4-Dinitrotoluene
121-14-2
8270E
ND
8.0
0.50
ug/L
1
2,6-Dinitrotoluene
606-20-2
8270E
ND
8.0
0.50
ug/L
1
Di-n-octylphthalate
117-84-0
8270E
ND
4.0
0.50
ug/L
1
bis(2-Ethylhexyl)phthalate
117-81-7
8270E
ND
4.0
0.50
ug/L
1
Fluoranthene
206-44-0
8270E
ND
0.80
0.20
ug/L
1
Fluorene
86-73-7
8270E
ND
0.80
0.20
ug/L
1
Hexachlorobenzene
118-74-1
8270E
ND
4.0
0.50
ug/L
1
Hexachlorobutadiene
87-68-3
8270E
ND
4.0
0.50
ug/L
1
Hexachlorocyclopentadiene
77-47-4
8270E
ND
20
2.0
ug/L
1
LOQ = Limit of Quantitation B =
Detected in the method blank
E = Quantitation of
compound exceeded the calibration range
DL = Detection Limit
ND = Not detected at or above the DL N =
Recovery is out of criteria
P = The RPD between two GC columns exceeds 40 %
J = Estimated result <
LOQ and > DL
H = Out of holding time W =
Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 55 of 131

Semivolatile Organic Compounds by GC/MS
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-007
Description: MW-7 Matrix: Aqueous
Date Sampled:02/25/2020 1225 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 3520C 8270E 1 03/04/2020 1723 JCG 03/02/2020 1316 46578
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
Hexachloroethane
67-72-1
8270E
ND
4.0
1.0
ug/L
1
Indeno(1,2,3-c,d)pyrene
193-39-5
8270E
ND
0.80
0.20
ug/L
1
Isophorone
78-59-1
8270E
ND
4.0
0.50
ug/L
1
2-Methylnaphthalene
91-57-6
8270E
ND
0.80
0.20
ug/L
1
2-Methylphenol
95-48-7
8270E
ND
4.0
1.0
ug/L
1
3+4-Methylphenol
106-44-5
8270E
ND
4.0
1.5
ug/L
1
Naphthalene
91-20-3
8270E
ND
0.80
0.20
ug/L
1
2-Nitroaniline
88-74-4
8270E
ND
8.0
0.50
ug/L
1
3-Nitroaniline
99-09-2
8270E
ND
8.0
1.0
ug/L
1
4-Nitroaniline
100-01-6
8270E
ND
8.0
1.5
ug/L
1
Nitrobenzene
98-95-3
8270E
ND
4.0
1.5
ug/L
1
2-Nitrophenol
88-75-5
8270E
ND
4.0
1.0
ug/L
1
4-Nitrophenol
100-02-7
8270E
ND
20
2.0
ug/L
1
N-Nitrosodi-n-propylamine
621-64-7
8270E
ND
4.0
0.50
ug/L
1
N-Nitrosodiphenylamine (Diphenylamine)
86-30-6
8270E
ND
4.0
0.50
ug/L
1
Pentachlorophenol
87-86-5
8270E
ND
20
2.0
ug/L
1
Phenanthrene
85-01-8
8270E
ND
0.80
0.20
ug/L
1
Phenol
108-95-2
8270E
ND
4.0
0.50
ug/L
1
Pyrene
129-00-0
8270E
ND
0.80
0.20
ug/L
1
2,4,5-Trichlorophenol
95-95-4
8270E
ND
4.0
0.50
ug/L
1
2,4,6-Trichlorophenol
88-06-2
8270E
ND
4.0
0.50
ug/L
1
Run 1 Acceptance
Surrogate
Q % Recovery Limits
2-Fluorobiphenyl
82 37-129
2-Fluorophenol
55 24-127
Nitrobenzene-d5
89 38-127
Phenol-d5
68 28-128
Terphenyl-d14
108 10-148
2,4,6-Tribromophenol
95 35-144
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 56 of 131

MADEP EPH (aliphatics) - Unfractionated
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-007
Description: MW-7 Matrix: Aqueous
Date Sampled:02/25/2020 1225 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution
Analysis Date Analyst
Prep Date
Batch
1 MADEP-EPH- MADEP-EPH-04 1
03/03/2020 2230 DAL1
02/27/2020 1528 46298
CAS Analytical
Parameter Number Method
Result Q
LOQ DL Units Run
C19 - C36 Aliphatics - Unfractionated
MADEP-EPH-04
ND
100 100 ug/L 1
C9 - C18 Aliphatics - Unfractionated
MADEP-EPH-04
ND
100 100 ug/L 1
Run 1
Acceptance
Surrogate Q % Recovery
Limits
1-Chloro-octadecane (aliphatic) - Unfractionated 89
40-140
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 57 of 131

MADEP EPH (aromatics) - Unfractionated
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-007
Description: MW-7 Matrix: Aqueous
Date Sampled:02/25/2020 1225 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 MADEP-EPH- MADEP-EPH-04 1 03/03/2020 2230 DAL1 02/27/2020 1528 46299
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
C11 - C22 Aromatics - Unfractionated MADEP-EPH-04 ND 100 100 ug/L 1
Run 1 Acceptance
Surrogate Q % Recovery Limits
o - Terphenyl (aromatic) - Unfractionated 64 40-140
2-Fluorobiphenyl (fractionation 1) 81 40-140
2-Bromonaphthalene (fractionation 2) 84 40-140
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 58 of 131

MADEP VPH (aliphatics)
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-007
Description: MW-7 Matrix: Aqueous
Date Sampled:02/25/2020 1225 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 VPH MADEP-VPH-18-2.1 1 03/04/2020 0159 STM 46799
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
C5 - C8 Aliphatics MADEP-VPH- ND 75 15 ug/L 1
C9 - C12 Aliphatics MADEP-VPH- ND 75 15 ug/L 1
Run 1 Acceptance
Surrogate Q % Recovery Limits
2,5-Dibromotoluene (FID)
82 70-130
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 59 of 131

MADEP VPH (aromatics)
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-007
Description: MW-7 Matrix: Aqueous
Date Sampled:02/25/2020 1225 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 VPH MADEP-VPH-18-2.1 1 03/04/2020 0159 STM 46800
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
C9 - C10 Aromatics MADEP-VPH- ND 25 5.0 ug/L 1
Run 1 Acceptance
Surrogate Q % Recovery Limits
2,5-Dibromotoluene (PID)
84 70-130
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 60 of 131

Volatile Organic Compounds by GC/MS
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-008
Description: MW-8 Matrix: Aqueous
Date Sampled:02/25/2020 1355 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method
Dilution Analysis Date Analyst
Prep Date
Batch
1 5030B 8260D
1 02/29/2020 0239 STM
46473
CAS
Analytical
Parameter
Number
Method
Result Q
LOQ
DL
Units
Run
Acetone
67-64-1
8260D
ND
10
4.0
ug/L
1
Benzene
71-43-2
8260D
ND
0.50
0.40
ug/L
1
Bromodichloromethane
75-27-4
8260D
ND
0.50
0.40
ug/L
1
Bromoform
75-25-2
8260D
ND
0.50
0.40
ug/L
1
Bromomethane (Methyl bromide)
74-83-9
8260D
ND
0.50
0.40
ug/L
1
2-Butanone (MEK)
78-93-3
8260D
ND
10
2.0
ug/L
1
Carbon disulfide
75-15-0
8260D
ND
0.50
0.40
ug/L
1
Carbon tetrachloride
56-23-5
8260D
ND
0.50
0.40
ug/L
1
Chlorobenzene
108-90-7
8260D
ND
0.50
0.40
ug/L
1
Chloroethane
75-00-3
8260D
ND
0.50
0.40
ug/L
1
Chloroform
67-66-3
8260D
ND
0.50
0.40
ug/L
1
Chloromethane (Methyl chloride)
74-87-3
8260D
ND
0.50
0.40
ug/L
1
Cyclohexane
110-82-7
8260D
ND
0.50
0.40
ug/L
1
1,2-Dibromo-3-chloropropane (DBCP)
96-12-8
8260D
ND
0.50
0.40
ug/L
1
Dibromochloromethane
124-48-1
8260D
ND
0.50
0.40
ug/L
1
1,2-Dibromoethane (EDB)
106-93-4
8260D
ND
0.50
0.40
ug/L
1
1,2-Dichlorobenzene
95-50-1
8260D
ND
0.50
0.40
ug/L
1
1,3-Dichlorobenzene
541-73-1
8260D
ND
0.50
0.40
ug/L
1
1,4-Dichlorobenzene
106-46-7
8260D
ND
0.50
0.40
ug/L
1
Dichlorodifluoromethane
75-71-8
8260D
ND
0.50
0.40
ug/L
1
1,1-Dichloroethane
75-34-3
8260D
ND
0.50
0.40
ug/L
1
1,2-Dichloroethane
107-06-2
8260D
ND
0.50
0.40
ug/L
1
1, 1 -Dichloroethene
75-35-4
8260D
ND
0.50
0.40
ug/L
1
cis- 1,2-Dichloroethene
156-59-2
8260D
ND
0.50
0.40
ug/L
1
trans-1,2-Dichloroethene
156-60-5
8260D
ND
0.50
0.40
ug/L
1
1,2-Dichloropropane
78-87-5
8260D
ND
0.50
0.40
ug/L
1
cis- 1,3-Dichloropropene
10061-01-5
8260D
ND
0.50
0.40
ug/L
1
trans-1,3-Dichloropropene
10061-02-6
8260D
ND
0.50
0.40
ug/L
1
Ethylbenzene
100-41-4
8260D
ND
0.50
0.40
ug/L
1
2-Hexanone
591-78-6
8260D
ND
10
2.0
ug/L
1
Isopropylbenzene
98-82-8
8260D
ND
0.50
0.40
ug/L
1
Methyl acetate
79-20-9
8260D
ND
1.0
0.40
ug/L
1
Methyl tertiary butyl ether (MTBE)
1634-04-4
8260D
2.9
0.50
0.40
ug/L
1
4-Methyl-2-pentanone
108-10-1
8260D
ND
10
2.0
ug/L
1
Methylcyclohexane
108-87-2
8260D
ND
5.0
0.40
ug/L
1
Methylene chloride
75-09-2
8260D
ND
0.50
0.40
ug/L
1
Styrene
100-42-5
8260D
ND
0.50
0.41
ug/L
1
1,1,2,2-Tetrachloroethane
79-34-5
8260D
ND
0.50
0.40
ug/L
1
Tetrachloroethene
127-18-4
8260D
ND
0.50
0.40
ug/L
1
Toluene
108-88-3
8260D
ND
0.50
0.40
ug/L
1
1,1,2-Trichloro-1,2,2-Trifluoroethane
76-13-1
8260D
ND
1.0
0.42
ug/L
1
1,2,4-Trichlorobenzene
120-82-1
8260D
ND
0.50
0.40
ug/L
1
1,1,1-Trichloroethane
71-55-6
8260D
ND
0.50
0.40
ug/L
1
1,1,2-Trichloroethane
79-00-5
8260D
ND
0.50
0.40
ug/L
1
LOQ = Limit of Quantitation B = Detected in the method blank
E = Quantitation of
compound exceeded the calibration range
DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria
P = The RPD between two GC columns exceeds 40 %
J = Estimated result <
LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 61 of 131

Volatile Organic Compounds by GC/MS
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-008
Description: MW-8 Matrix: Aqueous
Date Sampled:02/25/2020 1355 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 5030B 8260D 1 02/29/2020 0239 STM 46473
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
Trichloroethene
79-01-6
8260D
ND
0.50
0.40
ug/L
1
Trichlorofluoromethane
75-69-4
8260D
ND
0.50
0.40
ug/L
1
Vinyl chloride
75-01-4
8260D
ND
0.50
0.40
ug/L
1
Xylenes (total)
1330-20-7
8260D
ND
1.0
0.40
ug/L
1
Run 1 Acceptance
Surrogate
Q % Recovery Limits
Bromofluorobenzene
1,2-Dichloroethane-d4
Toluene-d8
107 70-130
109 70-130
114 70-130
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 62 of 131

Semivolatile Organic Compounds by GC/MS
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-008
Description: MW-8 Matrix: Aqueous
Date Sampled:02/25/2020 1355 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method
Analytical Method
Dilution Analysis Date Analyst
Prep Date
Batch
1 3520C
8270E
1 03/04/2020 1748 JCG
03/02/2020 1316 46578
CAS
Analytical
Parameter
Number
Method
Result Q
LOQ
DL
Units
Run
Acenaphthene
83-32-9
8270E
ND
0.80
0.20
ug/L
1
Acenaphthylene
208-96-8
8270E
ND
0.80
0.20
ug/L
1
Acetophenone
98-86-2
8270E
ND
4.0
0.50
ug/L
1
Anthracene
120-12-7
8270E
ND
0.80
0.20
ug/L
1
Atrazine
1912-24-9
8270E
ND
4.0
0.50
ug/L
1
Benzaldehyde
100-52-7
8270E
ND
8.0
0.50
ug/L
1
Benzo(a)anthracene
56-55-3
8270E
ND
0.80
0.20
ug/L
1
Benzo(a)pyrene
50-32-8
8270E
ND
0.80
0.20
ug/L
1
Benzo(b)fluoranthene
205-99-2
8270E
ND
0.80
0.20
ug/L
1
Benzo(g,h,i)perylene
191-24-2
8270E
ND
0.80
0.20
ug/L
1
Benzo(k)fluoranthene
207-08-9
8270E
ND
0.80
0.20
ug/L
1
1,1'-Biphenyl
92-52-4
8270E
ND
4.0
0.50
ug/L
1
4-Bromophenyl phenyl ether
101-55-3
8270E
ND
4.0
0.50
ug/L
1
Butyl benzyl phthalate
85-68-7
8270E
ND
4.0
0.50
ug/L
1
Caprolactam
105-60-2
8270E
ND
8.0
1.0
ug/L
1
Carbazole
86-74-8
8270E
ND
4.0
0.50
ug/L
1
bis (2-Chloro-1-methylethyl) ether
108-60-1
8270E
ND
4.0
0.50
ug/L
1
4-Chloro-3-methyl phenol
59-50-7
8270E
ND
4.0
0.50
ug/L
1
4-Chloroaniline
106-47-8
8270E
ND
8.0
0.50
ug/L
1
bis(2-Chloroethoxy)methane
111-91-1
8270E
ND
4.0
0.50
ug/L
1
bis(2-Chloroethyl)ether
111-44-4
8270E
ND
4.0
0.50
ug/L
1
2-Chloronaphthalene
91-58-7
8270E
ND
4.0
0.50
ug/L
1
2-Chlorophenol
95-57-8
8270E
ND
4.0
0.50
ug/L
1
4-Chlorophenyl phenyl ether
7005-72-3
8270E
ND
4.0
0.50
ug/L
1
Chrysene
218-01-9
8270E
ND
0.80
0.20
ug/L
1
Dibenzo(a,h)anthracene
53-70-3
8270E
ND
0.80
0.20
ug/L
1
Dibenzofuran
132-64-9
8270E
ND
4.0
0.50
ug/L
1
3,3'-Dichlorobenzidine
91-94-1
8270E
ND
4.0
1.8
ug/L
1
2,4-Dichlorophenol
120-83-2
8270E
ND
8.0
1.0
ug/L
1
Diethylphthalate
84-66-2
8270E
ND
4.0
0.50
ug/L
1
Dimethyl phthalate
131-11-3
8270E
ND
4.0
0.50
ug/L
1
2,4-Dimethylphenol
105-67-9
8270E
ND
4.0
1.0
ug/L
1
Di-n-butyl phthalate
84-74-2
8270E
ND
4.0
0.50
ug/L
1
4,6-Dinitro-2-methylphenol
534-52-1
8270E
ND
20
1.0
ug/L
1
2,4-Dinitrophenol
51-28-5
8270E
ND
20
1.0
ug/L
1
2,4-Dinitrotoluene
121-14-2
8270E
ND
8.0
0.50
ug/L
1
2,6-Dinitrotoluene
606-20-2
8270E
ND
8.0
0.50
ug/L
1
Di-n-octylphthalate
117-84-0
8270E
ND
4.0
0.50
ug/L
1
bis(2-Ethylhexyl)phthalate
117-81-7
8270E
ND
4.0
0.50
ug/L
1
Fluoranthene
206-44-0
8270E
ND
0.80
0.20
ug/L
1
Fluorene
86-73-7
8270E
ND
0.80
0.20
ug/L
1
Hexachlorobenzene
118-74-1
8270E
ND
4.0
0.50
ug/L
1
Hexachlorobutadiene
87-68-3
8270E
ND
4.0
0.50
ug/L
1
Hexachlorocyclopentadiene
77-47-4
8270E
ND
20
2.0
ug/L
1
LOQ = Limit of Quantitation B =
Detected in the method blank
E = Quantitation of
compound exceeded the calibration range
DL = Detection Limit
ND = Not detected at or above the DL N =
Recovery is out of criteria
P = The RPD between two GC columns exceeds 40 %
J = Estimated result <
LOQ and > DL
H = Out of holding time W =
Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 63 of 131

Semivolatile Organic Compounds by GC/MS
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-008
Description: MW-8 Matrix: Aqueous
Date Sampled:02/25/2020 1355 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 3520C 8270E 1 03/04/2020 1748 JCG 03/02/2020 1316 46578
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
Hexachloroethane
67-72-1
8270E
ND
4.0
1.0
ug/L
1
Indeno(1,2,3-c,d)pyrene
193-39-5
8270E
ND
0.80
0.20
ug/L
1
Isophorone
78-59-1
8270E
ND
4.0
0.50
ug/L
1
2-Methylnaphthalene
91-57-6
8270E
ND
0.80
0.20
ug/L
1
2-Methylphenol
95-48-7
8270E
ND
4.0
1.0
ug/L
1
3+4-Methylphenol
106-44-5
8270E
ND
4.0
1.5
ug/L
1
Naphthalene
91-20-3
8270E
ND
0.80
0.20
ug/L
1
2-Nitroaniline
88-74-4
8270E
ND
8.0
0.50
ug/L
1
3-Nitroaniline
99-09-2
8270E
ND
8.0
1.0
ug/L
1
4-Nitroaniline
100-01-6
8270E
ND
8.0
1.5
ug/L
1
Nitrobenzene
98-95-3
8270E
ND
4.0
1.5
ug/L
1
2-Nitrophenol
88-75-5
8270E
ND
4.0
1.0
ug/L
1
4-Nitrophenol
100-02-7
8270E
ND
20
2.0
ug/L
1
N-Nitrosodi-n-propylamine
621-64-7
8270E
ND
4.0
0.50
ug/L
1
N-Nitrosodiphenylamine (Diphenylamine)
86-30-6
8270E
ND
4.0
0.50
ug/L
1
Pentachlorophenol
87-86-5
8270E
ND
20
2.0
ug/L
1
Phenanthrene
85-01-8
8270E
ND
0.80
0.20
ug/L
1
Phenol
108-95-2
8270E
ND
4.0
0.50
ug/L
1
Pyrene
129-00-0
8270E
ND
0.80
0.20
ug/L
1
2,4,5-Trichlorophenol
95-95-4
8270E
ND
4.0
0.50
ug/L
1
2,4,6-Trichlorophenol
88-06-2
8270E
ND
4.0
0.50
ug/L
1
Run 1 Acceptance
Surrogate
Q % Recovery Limits
2-Fluorobiphenyl
82 37-129
2-Fluorophenol
46 24-127
Nitrobenzene-d5
88 38-127
Phenol-d5
68 28-128
Terphenyl-d14
109 10-148
2,4,6-Tribromophenol
99 35-144
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 64 of 131

MADEP EPH (aromatics)
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-008
Description: MW-8 Matrix: Aqueous
Date Sampled:02/25/2020 1355 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 MADEP-EPH- MADEP-EPH-04 1 03/09/2020 1748 JJG 02/27/2020 1528 46911
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
C11 - C22 Aromatics MADEP-EPH-04 ND 100 100 ug/L 1
Run 1 Acceptance
Surrogate Q % Recovery Limits
o - Terphenyl (aromatic)
2-Fluorobiphenyl (fractionation 1)
2-Bromonaphthalene (fractionation 2)
63 40-140
75 40-140
52 40-140
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 65 of 131

MADEP EPH (aliphatics)
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-008
Description: MW-8 Matrix: Aqueous
Date Sampled:02/25/2020 1355 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 MADEP-EPH- MADEP-EPH-04 1 03/09/2020 1415 JJG 02/27/2020 1528 46910
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
C9 - C18 Aliphatics MADEP-EPH-04 ND 100 100 ug/L 1
C19 - C36 Aliphatics MADEP-EPH-04 ND 100 100 ug/L 1
Run 1 Acceptance
Surrogate Q % Recovery Limits
1-Chloro-octadecane (aliphatic)
71 40-140
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 66 of 131

MADEP VPH (aliphatics)
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-008
Description: MW-8 Matrix: Aqueous
Date Sampled:02/25/2020 1355 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 VPH MADEP-VPH-18-2.1 1 03/04/2020 0227 STM 46799
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
C5 - C8 Aliphatics MADEP-VPH- ND 75 15 ug/L 1
C9 - C12 Aliphatics MADEP-VPH- ND 75 15 ug/L 1
Run 1 Acceptance
Surrogate Q % Recovery Limits
2,5-Dibromotoluene (FID)
78 70-130
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 67 of 131

MADEP VPH (aromatics)
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-008
Description: MW-8 Matrix: Aqueous
Date Sampled:02/25/2020 1355 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 VPH MADEP-VPH-18-2.1 1 03/04/2020 0227 STM 46800
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
C9 - C10 Aromatics MADEP-VPH- ND 25 5.0 ug/L 1
Run 1 Acceptance
Surrogate Q % Recovery Limits
2,5-Dibromotoluene (PID)
77 70-130
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 68 of 131

Volatile Organic Compounds by GC/MS
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-009
Description: MW-9 Matrix: Aqueous
Date Sampled:02/25/2020 1540 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method
Dilution Analysis Date Analyst
Prep Date
Batch
1 5030B 8260D
1 02/29/2020 0305 STM
46473
CAS
Analytical
Parameter
Number
Method
Result Q
LOQ
DL
Units
Run
Acetone
67-64-1
8260D
8.4 J
10
4.0
ug/L
1
Benzene
71-43-2
8260D
ND
0.50
0.40
ug/L
1
Bromodichloromethane
75-27-4
8260D
ND
0.50
0.40
ug/L
1
Bromoform
75-25-2
8260D
ND
0.50
0.40
ug/L
1
Bromomethane (Methyl bromide)
74-83-9
8260D
ND
0.50
0.40
ug/L
1
2-Butanone (MEK)
78-93-3
8260D
ND
10
2.0
ug/L
1
Carbon disulfide
75-15-0
8260D
ND
0.50
0.40
ug/L
1
Carbon tetrachloride
56-23-5
8260D
ND
0.50
0.40
ug/L
1
Chlorobenzene
108-90-7
8260D
ND
0.50
0.40
ug/L
1
Chloroethane
75-00-3
8260D
ND
0.50
0.40
ug/L
1
Chloroform
67-66-3
8260D
ND
0.50
0.40
ug/L
1
Chloromethane (Methyl chloride)
74-87-3
8260D
ND
0.50
0.40
ug/L
1
Cyclohexane
110-82-7
8260D
1.3
0.50
0.40
ug/L
1
1,2-Dibromo-3-chloropropane (DBCP)
96-12-8
8260D
ND
0.50
0.40
ug/L
1
Dibromochloromethane
124-48-1
8260D
ND
0.50
0.40
ug/L
1
1,2-Dibromoethane (EDB)
106-93-4
8260D
ND
0.50
0.40
ug/L
1
1,2-Dichlorobenzene
95-50-1
8260D
ND
0.50
0.40
ug/L
1
1,3-Dichlorobenzene
541-73-1
8260D
ND
0.50
0.40
ug/L
1
1,4-Dichlorobenzene
106-46-7
8260D
ND
0.50
0.40
ug/L
1
Dichlorodifluoromethane
75-71-8
8260D
ND
0.50
0.40
ug/L
1
1,1-Dichloroethane
75-34-3
8260D
ND
0.50
0.40
ug/L
1
1,2-Dichloroethane
107-06-2
8260D
ND
0.50
0.40
ug/L
1
1, 1 -Dichloroethene
75-35-4
8260D
ND
0.50
0.40
ug/L
1
cis- 1,2-Dichloroethene
156-59-2
8260D
ND
0.50
0.40
ug/L
1
trans-1,2-Dichloroethene
156-60-5
8260D
ND
0.50
0.40
ug/L
1
1,2-Dichloropropane
78-87-5
8260D
ND
0.50
0.40
ug/L
1
cis- 1,3-Dichloropropene
10061-01-5
8260D
ND
0.50
0.40
ug/L
1
trans-1,3-Dichloropropene
10061-02-6
8260D
ND
0.50
0.40
ug/L
1
Ethylbenzene
100-41-4
8260D
ND
0.50
0.40
ug/L
1
2-Hexanone
591-78-6
8260D
ND
10
2.0
ug/L
1
Isopropylbenzene
98-82-8
8260D
1.5
0.50
0.40
ug/L
1
Methyl acetate
79-20-9
8260D
ND
1.0
0.40
ug/L
1
Methyl tertiary butyl ether (MTBE)
1634-04-4
8260D
ND
0.50
0.40
ug/L
1
4-Methyl-2-pentanone
108-10-1
8260D
ND
10
2.0
ug/L
1
Methylcyclohexane
108-87-2
8260D
2.2 J
5.0
0.40
ug/L
1
Methylene chloride
75-09-2
8260D
ND
0.50
0.40
ug/L
1
Styrene
100-42-5
8260D
ND
0.50
0.41
ug/L
1
1,1,2,2-Tetrachloroethane
79-34-5
8260D
ND
0.50
0.40
ug/L
1
Tetrachloroethene
127-18-4
8260D
ND
0.50
0.40
ug/L
1
Toluene
108-88-3
8260D
ND
0.50
0.40
ug/L
1
1,1,2-Trichloro-1,2,2-Trifluoroethane
76-13-1
8260D
ND
1.0
0.42
ug/L
1
1,2,4-Trichlorobenzene
120-82-1
8260D
ND
0.50
0.40
ug/L
1
1,1,1-Trichloroethane
71-55-6
8260D
ND
0.50
0.40
ug/L
1
1,1,2-Trichloroethane
79-00-5
8260D
ND
0.50
0.40
ug/L
1
LOQ = Limit of Quantitation B = Detected in the method blank
E = Quantitation of
compound exceeded the calibration range
DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria
P = The RPD between two GC columns exceeds 40 %
J = Estimated result <
LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 69 of 131

Volatile Organic Compounds by GC/MS
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-009
Description: MW-9 Matrix: Aqueous
Date Sampled:02/25/2020 1540 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 5030B 8260D 1 02/29/2020 0305 STM 46473
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
Trichloroethene
79-01-6
8260D
ND
0.50
0.40
ug/L
1
Trichlorofluoromethane
75-69-4
8260D
ND
0.50
0.40
ug/L
1
Vinyl chloride
75-01-4
8260D
ND
0.50
0.40
ug/L
1
Xylenes (total)
1330-20-7
8260D
ND
1.0
0.40
ug/L
1
Run 1 Acceptance
Surrogate
Q % Recovery Limits
Bromofluorobenzene
1,2-Dichloroethane-d4
Toluene-d8
107 70-130
109 70-130
114 70-130
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 70 of 131

Semivolatile Organic Compounds by GC/MS
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-009
Description: MW-9 Matrix: Aqueous
Date Sampled:02/25/2020 1540 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method
Analytical Method
Dilution Analysis Date Analyst
Prep Date
Batch
1 3520C
8270E
1 03/04/2020 1813 JCG
03/02/2020 1316 46578
CAS
Analytical
Parameter
Number
Method
Result Q
LOQ
DL
Units
Run
Acenaphthene
83-32-9
8270E
1.1
0.80
0.20
ug/L
1
Acenaphthylene
208-96-8
8270E
ND
0.80
0.20
ug/L
1
Acetophenone
98-86-2
8270E
ND
4.0
0.50
ug/L
1
Anthracene
120-12-7
8270E
ND
0.80
0.20
ug/L
1
Atrazine
1912-24-9
8270E
ND
4.0
0.50
ug/L
1
Benzaldehyde
100-52-7
8270E
ND
8.0
0.50
ug/L
1
Benzo(a)anthracene
56-55-3
8270E
ND
0.80
0.20
ug/L
1
Benzo(a)pyrene
50-32-8
8270E
ND
0.80
0.20
ug/L
1
Benzo(b)fluoranthene
205-99-2
8270E
ND
0.80
0.20
ug/L
1
Benzo(g,h,i)perylene
191-24-2
8270E
ND
0.80
0.20
ug/L
1
Benzo(k)fluoranthene
207-08-9
8270E
ND
0.80
0.20
ug/L
1
1,1'-Biphenyl
92-52-4
8270E
ND
4.0
0.50
ug/L
1
4-Bromophenyl phenyl ether
101-55-3
8270E
ND
4.0
0.50
ug/L
1
Butyl benzyl phthalate
85-68-7
8270E
ND
4.0
0.50
ug/L
1
Caprolactam
105-60-2
8270E
ND
8.0
1.0
ug/L
1
Carbazole
86-74-8
8270E
ND
4.0
0.50
ug/L
1
bis (2-Chloro-1-methylethyl) ether
108-60-1
8270E
ND
4.0
0.50
ug/L
1
4-Chloro-3-methyl phenol
59-50-7
8270E
ND
4.0
0.50
ug/L
1
4-Chloroaniline
106-47-8
8270E
ND
8.0
0.50
ug/L
1
bis(2-Chloroethoxy)methane
111-91-1
8270E
ND
4.0
0.50
ug/L
1
bis(2-Chloroethyl)ether
111-44-4
8270E
ND
4.0
0.50
ug/L
1
2-Chloronaphthalene
91-58-7
8270E
ND
4.0
0.50
ug/L
1
2-Chlorophenol
95-57-8
8270E
ND
4.0
0.50
ug/L
1
4-Chlorophenyl phenyl ether
7005-72-3
8270E
ND
4.0
0.50
ug/L
1
Chrysene
218-01-9
8270E
ND
0.80
0.20
ug/L
1
Dibenzo(a,h)anthracene
53-70-3
8270E
ND
0.80
0.20
ug/L
1
Dibenzofuran
132-64-9
8270E
ND
4.0
0.50
ug/L
1
3,3'-Dichlorobenzidine
91-94-1
8270E
ND
4.0
1.8
ug/L
1
2,4-Dichlorophenol
120-83-2
8270E
ND
8.0
1.0
ug/L
1
Diethylphthalate
84-66-2
8270E
ND
4.0
0.50
ug/L
1
Dimethyl phthalate
131-11-3
8270E
ND
4.0
0.50
ug/L
1
2,4-Dimethylphenol
105-67-9
8270E
ND
4.0
1.0
ug/L
1
Di-n-butyl phthalate
84-74-2
8270E
ND
4.0
0.50
ug/L
1
4,6-Dinitro-2-methylphenol
534-52-1
8270E
ND
20
1.0
ug/L
1
2,4-Dinitrophenol
51-28-5
8270E
ND
20
1.0
ug/L
1
2,4-Dinitrotoluene
121-14-2
8270E
ND
8.0
0.50
ug/L
1
2,6-Dinitrotoluene
606-20-2
8270E
ND
8.0
0.50
ug/L
1
Di-n-octylphthalate
117-84-0
8270E
ND
4.0
0.50
ug/L
1
bis(2-Ethylhexyl)phthalate
117-81-7
8270E
ND
4.0
0.50
ug/L
1
Fluoranthene
206-44-0
8270E
ND
0.80
0.20
ug/L
1
Fluorene
86-73-7
8270E
1.3
0.80
0.20
ug/L
1
Hexachlorobenzene
118-74-1
8270E
ND
4.0
0.50
ug/L
1
Hexachlorobutadiene
87-68-3
8270E
ND
4.0
0.50
ug/L
1
Hexachlorocyclopentadiene
77-47-4
8270E
ND
20
2.0
ug/L
1
LOQ = Limit of Quantitation B =
Detected in the method blank
E = Quantitation of
compound exceeded the calibration range
DL = Detection Limit
ND = Not detected at or above the DL N =
Recovery is out of criteria
P = The RPD between two GC columns exceeds 40 %
J = Estimated result <
LOQ and > DL
H = Out of holding time W =
Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 71 of 131

Semivolatile Organic Compounds by GC/MS
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-009
Description: MW-9 Matrix: Aqueous
Date Sampled:02/25/2020 1540 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 3520C 8270E 1 03/04/2020 1813 JCG 03/02/2020 1316 46578
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
Hexachloroethane
67-72-1
8270E
ND
4.0
1.0
ug/L
1
Indeno(1,2,3-c,d)pyrene
193-39-5
8270E
ND
0.80
0.20
ug/L
1
Isophorone
78-59-1
8270E
ND
4.0
0.50
ug/L
1
2-Methylnaphthalene
91-57-6
8270E
ND
0.80
0.20
ug/L
1
2-Methylphenol
95-48-7
8270E
ND
4.0
1.0
ug/L
1
3+4-Methylphenol
106-44-5
8270E
ND
4.0
1.5
ug/L
1
Naphthalene
91-20-3
8270E
ND
0.80
0.20
ug/L
1
2-Nitroaniline
88-74-4
8270E
ND
8.0
0.50
ug/L
1
3-Nitroaniline
99-09-2
8270E
ND
8.0
1.0
ug/L
1
4-Nitroaniline
100-01-6
8270E
ND
8.0
1.5
ug/L
1
Nitrobenzene
98-95-3
8270E
ND
4.0
1.5
ug/L
1
2-Nitrophenol
88-75-5
8270E
ND
4.0
1.0
ug/L
1
4-Nitrophenol
100-02-7
8270E
ND
20
2.0
ug/L
1
N-Nitrosodi-n-propylamine
621-64-7
8270E
ND
4.0
0.50
ug/L
1
N-Nitrosodiphenylamine (Diphenylamine)
86-30-6
8270E
ND
4.0
0.50
ug/L
1
Pentachlorophenol
87-86-5
8270E
ND
20
2.0
ug/L
1
Phenanthrene
85-01-8
8270E
ND
0.80
0.20
ug/L
1
Phenol
108-95-2
8270E
ND
4.0
0.50
ug/L
1
Pyrene
129-00-0
8270E
ND
0.80
0.20
ug/L
1
2,4,5-Trichlorophenol
95-95-4
8270E
ND
4.0
0.50
ug/L
1
2,4,6-Trichlorophenol
88-06-2
8270E
ND
4.0
0.50
ug/L
1
Run 1 Acceptance
Surrogate
Q % Recovery Limits
2-Fluorobiphenyl
78 37-129
2-Fluorophenol
46 24-127
Nitrobenzene-d5
83 38-127
Phenol-d5
66 28-128
Terphenyl-d14
109 10-148
2,4,6-Tribromophenol
101 35-144
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 72 of 131

MADEP EPH (aromatics)
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-009
Description: MW-9 Matrix: Aqueous
Date Sampled:02/25/2020 1540 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 MADEP-EPH- MADEP-EPH-04 1 03/09/2020 1818 JJG 02/27/2020 1528 46911
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
C11 - C22 Aromatics MADEP-EPH-04 ND 100 100 ug/L 1
Run 1 Acceptance
Surrogate Q % Recovery Limits
o - Terphenyl (aromatic)
2-Fluorobiphenyl (fractionation 1)
2-Bromonaphthalene (fractionation 2)
67 40-140
78 40-140
65 40-140
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 73 of 131

MADEP EPH (aliphatics)
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-009
Description: MW-9 Matrix: Aqueous
Date Sampled:02/25/2020 1540 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 MADEP-EPH- MADEP-EPH-04 1 03/09/2020 1445 JJG 02/27/2020 1528 46910
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
C9 - C18 Aliphatics MADEP-EPH-04 ND 100 100 ug/L 1
C19 - C36 Aliphatics MADEP-EPH-04 ND 100 100 ug/L 1
Run 1 Acceptance
Surrogate Q % Recovery Limits
1-Chloro-octadecane (aliphatic)
63 40-140
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 74 of 131

MADEP VPH (aliphatics)
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-009
Description: MW-9 Matrix: Aqueous
Date Sampled:02/25/2020 1540 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 VPH MADEP-VPH-18-2.1 1 03/04/2020 0314 STM 46799
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
C5 - C8 Aliphatics MADEP-VPH- 52 J 75 15 ug/L 1
C9 - C12 Aliphatics MADEP-VPH- 90 75 15 ug/L 1
Run 1 Acceptance
Surrogate Q % Recovery Limits
2,5-Dibromotoluene (FID)
84 70-130
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 75 of 131

MADEP VPH (aromatics)
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-009
Description: MW-9 Matrix: Aqueous
Date Sampled:02/25/2020 1540 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 VPH MADEP-VPH-18-2.1 1 03/04/2020 0314 STM 46800
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
C9 - C10 Aromatics MADEP-VPH- 84 25 5.0 ug/L 1
Run 1 Acceptance
Surrogate Q % Recovery Limits
2,5-Dibromotoluene (PID)
89 70-130
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 76 of 131

Volatile Organic Compounds by GC/MS
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-010
Description: MW-10 Matrix: Aqueous
Date Sampled:02/25/2020 1450 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method
Dilution Analysis Date Analyst
Prep Date
Batch
1 5030B 8260D
1 02/29/2020 0331 STM
46473
CAS
Analytical
Parameter
Number
Method
Result Q
LOQ
DL
Units
Run
Acetone
67-64-1
8260D
ND
10
4.0
ug/L
1
Benzene
71-43-2
8260D
ND
0.50
0.40
ug/L
1
Bromodichloromethane
75-27-4
8260D
ND
0.50
0.40
ug/L
1
Bromoform
75-25-2
8260D
ND
0.50
0.40
ug/L
1
Bromomethane (Methyl bromide)
74-83-9
8260D
ND
0.50
0.40
ug/L
1
2-Butanone (MEK)
78-93-3
8260D
ND
10
2.0
ug/L
1
Carbon disulfide
75-15-0
8260D
ND
0.50
0.40
ug/L
1
Carbon tetrachloride
56-23-5
8260D
ND
0.50
0.40
ug/L
1
Chlorobenzene
108-90-7
8260D
ND
0.50
0.40
ug/L
1
Chloroethane
75-00-3
8260D
ND
0.50
0.40
ug/L
1
Chloroform
67-66-3
8260D
ND
0.50
0.40
ug/L
1
Chloromethane (Methyl chloride)
74-87-3
8260D
ND
0.50
0.40
ug/L
1
Cyclohexane
110-82-7
8260D
ND
0.50
0.40
ug/L
1
1,2-Dibromo-3-chloropropane (DBCP)
96-12-8
8260D
ND
0.50
0.40
ug/L
1
Dibromochloromethane
124-48-1
8260D
ND
0.50
0.40
ug/L
1
1,2-Dibromoethane (EDB)
106-93-4
8260D
ND
0.50
0.40
ug/L
1
1,2-Dichlorobenzene
95-50-1
8260D
ND
0.50
0.40
ug/L
1
1,3-Dichlorobenzene
541-73-1
8260D
ND
0.50
0.40
ug/L
1
1,4-Dichlorobenzene
106-46-7
8260D
ND
0.50
0.40
ug/L
1
Dichlorodifluoromethane
75-71-8
8260D
ND
0.50
0.40
ug/L
1
1,1-Dichloroethane
75-34-3
8260D
ND
0.50
0.40
ug/L
1
1,2-Dichloroethane
107-06-2
8260D
ND
0.50
0.40
ug/L
1
1, 1 -Dichloroethene
75-35-4
8260D
ND
0.50
0.40
ug/L
1
cis- 1,2-Dichloroethene
156-59-2
8260D
ND
0.50
0.40
ug/L
1
trans-1,2-Dichloroethene
156-60-5
8260D
ND
0.50
0.40
ug/L
1
1,2-Dichloropropane
78-87-5
8260D
ND
0.50
0.40
ug/L
1
cis- 1,3-Dichloropropene
10061-01-5
8260D
ND
0.50
0.40
ug/L
1
trans-1,3-Dichloropropene
10061-02-6
8260D
ND
0.50
0.40
ug/L
1
Ethylbenzene
100-41-4
8260D
ND
0.50
0.40
ug/L
1
2-Hexanone
591-78-6
8260D
ND
10
2.0
ug/L
1
Isopropylbenzene
98-82-8
8260D
ND
0.50
0.40
ug/L
1
Methyl acetate
79-20-9
8260D
ND
1.0
0.40
ug/L
1
Methyl tertiary butyl ether (MTBE)
1634-04-4
8260D
ND
0.50
0.40
ug/L
1
4-Methyl-2-pentanone
108-10-1
8260D
ND
10
2.0
ug/L
1
Methylcyclohexane
108-87-2
8260D
ND
5.0
0.40
ug/L
1
Methylene chloride
75-09-2
8260D
ND
0.50
0.40
ug/L
1
Styrene
100-42-5
8260D
ND
0.50
0.41
ug/L
1
1,1,2,2-Tetrachloroethane
79-34-5
8260D
ND
0.50
0.40
ug/L
1
Tetrachloroethene
127-18-4
8260D
ND
0.50
0.40
ug/L
1
Toluene
108-88-3
8260D
ND
0.50
0.40
ug/L
1
1,1,2-Trichloro-1,2,2-Trifluoroethane
76-13-1
8260D
ND
1.0
0.42
ug/L
1
1,2,4-Trichlorobenzene
120-82-1
8260D
ND
0.50
0.40
ug/L
1
1,1,1-Trichloroethane
71-55-6
8260D
ND
0.50
0.40
ug/L
1
1,1,2-Trichloroethane
79-00-5
8260D
ND
0.50
0.40
ug/L
1
LOQ = Limit of Quantitation B = Detected in the method blank
E = Quantitation of
compound exceeded the calibration range
DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria
P = The RPD between two GC columns exceeds 40 %
J = Estimated result <
LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 77 of 131

Volatile Organic Compounds by GC/MS
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-010
Description: MW-10 Matrix: Aqueous
Date Sampled:02/25/2020 1450 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 5030B 8260D 1 02/29/2020 0331 STM 46473
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
Trichloroethene
79-01-6
8260D
ND
0.50
0.40
ug/L
1
Trichlorofluoromethane
75-69-4
8260D
ND
0.50
0.40
ug/L
1
Vinyl chloride
75-01-4
8260D
ND
0.50
0.40
ug/L
1
Xylenes (total)
1330-20-7
8260D
ND
1.0
0.40
ug/L
1
Run 1 Acceptance
Surrogate
Q % Recovery Limits
Bromofluorobenzene
1,2-Dichloroethane-d4
Toluene-d8
106 70-130
109 70-130
115 70-130
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 78 of 131

Semivolatile Organic Compounds by GC/MS
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-010
Description: MW-10 Matrix: Aqueous
Date Sampled:02/25/2020 1450 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method
Analytical Method
Dilution Analysis Date Analyst
Prep Date
Batch
1 3520C
8270E
1 03/04/2020 1838 JCG
03/02/2020 1316 46578
CAS
Analytical
Parameter
Number
Method
Result Q
LOQ
DL
Units
Run
Acenaphthene
83-32-9
8270E
ND
0.80
0.20
ug/L
1
Acenaphthylene
208-96-8
8270E
ND
0.80
0.20
ug/L
1
Acetophenone
98-86-2
8270E
ND
4.0
0.50
ug/L
1
Anthracene
120-12-7
8270E
ND
0.80
0.20
ug/L
1
Atrazine
1912-24-9
8270E
ND
4.0
0.50
ug/L
1
Benzaldehyde
100-52-7
8270E
ND
8.0
0.50
ug/L
1
Benzo(a)anthracene
56-55-3
8270E
ND
0.80
0.20
ug/L
1
Benzo(a)pyrene
50-32-8
8270E
ND
0.80
0.20
ug/L
1
Benzo(b)fluoranthene
205-99-2
8270E
ND
0.80
0.20
ug/L
1
Benzo(g,h,i)perylene
191-24-2
8270E
ND
0.80
0.20
ug/L
1
Benzo(k)fluoranthene
207-08-9
8270E
ND
0.80
0.20
ug/L
1
1,1'-Biphenyl
92-52-4
8270E
ND
4.0
0.50
ug/L
1
4-Bromophenyl phenyl ether
101-55-3
8270E
ND
4.0
0.50
ug/L
1
Butyl benzyl phthalate
85-68-7
8270E
ND
4.0
0.50
ug/L
1
Caprolactam
105-60-2
8270E
ND
8.0
1.0
ug/L
1
Carbazole
86-74-8
8270E
ND
4.0
0.50
ug/L
1
bis (2-Chloro-1-methylethyl) ether
108-60-1
8270E
ND
4.0
0.50
ug/L
1
4-Chloro-3-methyl phenol
59-50-7
8270E
ND
4.0
0.50
ug/L
1
4-Chloroaniline
106-47-8
8270E
ND
8.0
0.50
ug/L
1
bis(2-Chloroethoxy)methane
111-91-1
8270E
ND
4.0
0.50
ug/L
1
bis(2-Chloroethyl)ether
111-44-4
8270E
ND
4.0
0.50
ug/L
1
2-Chloronaphthalene
91-58-7
8270E
ND
4.0
0.50
ug/L
1
2-Chlorophenol
95-57-8
8270E
ND
4.0
0.50
ug/L
1
4-Chlorophenyl phenyl ether
7005-72-3
8270E
ND
4.0
0.50
ug/L
1
Chrysene
218-01-9
8270E
ND
0.80
0.20
ug/L
1
Dibenzo(a,h)anthracene
53-70-3
8270E
ND
0.80
0.20
ug/L
1
Dibenzofuran
132-64-9
8270E
ND
4.0
0.50
ug/L
1
3,3'-Dichlorobenzidine
91-94-1
8270E
ND
4.0
1.8
ug/L
1
2,4-Dichlorophenol
120-83-2
8270E
ND
8.0
1.0
ug/L
1
Diethylphthalate
84-66-2
8270E
ND
4.0
0.50
ug/L
1
Dimethyl phthalate
131-11-3
8270E
ND
4.0
0.50
ug/L
1
2,4-Dimethylphenol
105-67-9
8270E
ND
4.0
1.0
ug/L
1
Di-n-butyl phthalate
84-74-2
8270E
ND
4.0
0.50
ug/L
1
4,6-Dinitro-2-methylphenol
534-52-1
8270E
ND
20
1.0
ug/L
1
2,4-Dinitrophenol
51-28-5
8270E
ND
20
1.0
ug/L
1
2,4-Dinitrotoluene
121-14-2
8270E
ND
8.0
0.50
ug/L
1
2,6-Dinitrotoluene
606-20-2
8270E
ND
8.0
0.50
ug/L
1
Di-n-octylphthalate
117-84-0
8270E
ND
4.0
0.50
ug/L
1
bis(2-Ethylhexyl)phthalate
117-81-7
8270E
ND
4.0
0.50
ug/L
1
Fluoranthene
206-44-0
8270E
ND
0.80
0.20
ug/L
1
Fluorene
86-73-7
8270E
ND
0.80
0.20
ug/L
1
Hexachlorobenzene
118-74-1
8270E
ND
4.0
0.50
ug/L
1
Hexachlorobutadiene
87-68-3
8270E
ND
4.0
0.50
ug/L
1
Hexachlorocyclopentadiene
77-47-4
8270E
ND
20
2.0
ug/L
1
LOQ = Limit of Quantitation B =
Detected in the method blank
E = Quantitation of
compound exceeded the calibration range
DL = Detection Limit
ND = Not detected at or above the DL N =
Recovery is out of criteria
P = The RPD between two GC columns exceeds 40 %
J = Estimated result <
LOQ and > DL
H = Out of holding time W =
Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 79 of 131

Semivolatile Organic Compounds by GC/MS
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-010
Description: MW-10 Matrix: Aqueous
Date Sampled:02/25/2020 1450 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 3520C 8270E 1 03/04/2020 1838 JCG 03/02/2020 1316 46578
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
Hexachloroethane
67-72-1
8270E
ND
4.0
1.0
ug/L
1
Indeno(1,2,3-c,d)pyrene
193-39-5
8270E
ND
0.80
0.20
ug/L
1
Isophorone
78-59-1
8270E
ND
4.0
0.50
ug/L
1
2-Methylnaphthalene
91-57-6
8270E
ND
0.80
0.20
ug/L
1
2-Methylphenol
95-48-7
8270E
ND
4.0
1.0
ug/L
1
3+4-Methylphenol
106-44-5
8270E
ND
4.0
1.5
ug/L
1
Naphthalene
91-20-3
8270E
ND
0.80
0.20
ug/L
1
2-Nitroaniline
88-74-4
8270E
ND
8.0
0.50
ug/L
1
3-Nitroaniline
99-09-2
8270E
ND
8.0
1.0
ug/L
1
4-Nitroaniline
100-01-6
8270E
ND
8.0
1.5
ug/L
1
Nitrobenzene
98-95-3
8270E
ND
4.0
1.5
ug/L
1
2-Nitrophenol
88-75-5
8270E
ND
4.0
1.0
ug/L
1
4-Nitrophenol
100-02-7
8270E
ND
20
2.0
ug/L
1
N-Nitrosodi-n-propylamine
621-64-7
8270E
ND
4.0
0.50
ug/L
1
N-Nitrosodiphenylamine (Diphenylamine)
86-30-6
8270E
ND
4.0
0.50
ug/L
1
Pentachlorophenol
87-86-5
8270E
ND
20
2.0
ug/L
1
Phenanthrene
85-01-8
8270E
ND
0.80
0.20
ug/L
1
Phenol
108-95-2
8270E
ND
4.0
0.50
ug/L
1
Pyrene
129-00-0
8270E
ND
0.80
0.20
ug/L
1
2,4,5-Trichlorophenol
95-95-4
8270E
ND
4.0
0.50
ug/L
1
2,4,6-Trichlorophenol
88-06-2
8270E
ND
4.0
0.50
ug/L
1
Run 1 Acceptance
Surrogate
Q % Recovery Limits
2-Fluorobiphenyl
73 37-129
2-Fluorophenol
42 24-127
Nitrobenzene-d5
79 38-127
Phenol-d5
67 28-128
Terphenyl-d14
108 10-148
2,4,6-Tribromophenol
90 35-144
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 80 of 131

MADEP EPH (aliphatics) - Unfractionated
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-010
Description: MW-10 Matrix: Aqueous
Date Sampled:02/25/2020 1450 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution
Analysis Date Analyst
Prep Date
Batch
1 MADEP-EPH- MADEP-EPH-04 1
03/03/2020 2359 DAL1
02/27/2020 1528 46298
CAS Analytical
Parameter Number Method
Result Q
LOQ DL Units Run
C19 - C36 Aliphatics - Unfractionated
MADEP-EPH-04
ND
100 100 ug/L 1
C9 - C18 Aliphatics - Unfractionated
MADEP-EPH-04
ND
100 100 ug/L 1
Run 1
Acceptance
Surrogate Q % Recovery
Limits
1-Chloro-octadecane (aliphatic) - Unfractionated 87
40-140
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 81 of 131

MADEP EPH (aromatics) - Unfractionated
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-010
Description: MW-10 Matrix: Aqueous
Date Sampled:02/25/2020 1450 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 MADEP-EPH- MADEP-EPH-04 1 03/03/2020 2359 DAL1 02/27/2020 1528 46299
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
C11 - C22 Aromatics - Unfractionated MADEP-EPH-04 ND 100 100 ug/L 1
Run 1 Acceptance
Surrogate Q % Recovery Limits
o - Terphenyl (aromatic) - Unfractionated 62 40-140
2-Fluorobiphenyl (fractionation 1) 80 40-140
2-Bromonaphthalene (fractionation 2) 83 40-140
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 82 of 131

MADEP VPH (aliphatics)
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-010
Description: MW-10 Matrix: Aqueous
Date Sampled:02/25/2020 1450 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 VPH MADEP-VPH-18-2.1 1 03/04/2020 0343 STM 46799
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
C5 - C8 Aliphatics MADEP-VPH- ND 75 15 ug/L 1
C9 - C12 Aliphatics MADEP-VPH- ND 75 15 ug/L 1
Run 1 Acceptance
Surrogate Q % Recovery Limits
2,5-Dibromotoluene (FID)
86 70-130
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 83 of 131

MADEP VPH (aromatics)
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-010
Description: MW-10 Matrix: Aqueous
Date Sampled:02/25/2020 1450 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 VPH MADEP-VPH-18-2.1 1 03/04/2020 0343 STM 46800
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
C9 - C10 Aromatics MADEP-VPH- ND 25 5.0 ug/L 1
Run 1 Acceptance
Surrogate Q % Recovery Limits
2,5-Dibromotoluene (PID)
89 70-130
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 84 of 131

Volatile Organic Compounds by GC/MS
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-015
Description: TB1 Matrix: Aqueous
Date Sampled:02/25/2020 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method
Dilution Analysis Date Analyst
Prep Date
Batch
1 5030B 8260D
1 02/29/2020 0357 STM
46473
CAS
Analytical
Parameter
Number
Method
Result Q
LOQ
DL
Units
Run
Acetone
67-64-1
8260D
ND
10
4.0
ug/L
1
Benzene
71-43-2
8260D
ND
0.50
0.40
ug/L
1
Bromodichloromethane
75-27-4
8260D
ND
0.50
0.40
ug/L
1
Bromoform
75-25-2
8260D
ND
0.50
0.40
ug/L
1
Bromomethane (Methyl bromide)
74-83-9
8260D
ND
0.50
0.40
ug/L
1
2-Butanone (MEK)
78-93-3
8260D
ND
10
2.0
ug/L
1
Carbon disulfide
75-15-0
8260D
ND
0.50
0.40
ug/L
1
Carbon tetrachloride
56-23-5
8260D
ND
0.50
0.40
ug/L
1
Chlorobenzene
108-90-7
8260D
ND
0.50
0.40
ug/L
1
Chloroethane
75-00-3
8260D
ND
0.50
0.40
ug/L
1
Chloroform
67-66-3
8260D
ND
0.50
0.40
ug/L
1
Chloromethane (Methyl chloride)
74-87-3
8260D
ND
0.50
0.40
ug/L
1
Cyclohexane
110-82-7
8260D
ND
0.50
0.40
ug/L
1
1,2-Dibromo-3-chloropropane (DBCP)
96-12-8
8260D
ND
0.50
0.40
ug/L
1
Dibromochloromethane
124-48-1
8260D
ND
0.50
0.40
ug/L
1
1,2-Dibromoethane (EDB)
106-93-4
8260D
ND
0.50
0.40
ug/L
1
1,2-Dichlorobenzene
95-50-1
8260D
ND
0.50
0.40
ug/L
1
1,3-Dichlorobenzene
541-73-1
8260D
ND
0.50
0.40
ug/L
1
1,4-Dichlorobenzene
106-46-7
8260D
ND
0.50
0.40
ug/L
1
Dichlorodifluoromethane
75-71-8
8260D
ND
0.50
0.40
ug/L
1
1,1-Dichloroethane
75-34-3
8260D
ND
0.50
0.40
ug/L
1
1,2-Dichloroethane
107-06-2
8260D
ND
0.50
0.40
ug/L
1
1, 1 -Dichloroethene
75-35-4
8260D
ND
0.50
0.40
ug/L
1
cis- 1,2-Dichloroethene
156-59-2
8260D
ND
0.50
0.40
ug/L
1
trans-1,2-Dichloroethene
156-60-5
8260D
ND
0.50
0.40
ug/L
1
1,2-Dichloropropane
78-87-5
8260D
ND
0.50
0.40
ug/L
1
cis- 1,3-Dichloropropene
10061-01-5
8260D
ND
0.50
0.40
ug/L
1
trans-1,3-Dichloropropene
10061-02-6
8260D
ND
0.50
0.40
ug/L
1
Ethylbenzene
100-41-4
8260D
ND
0.50
0.40
ug/L
1
2-Hexanone
591-78-6
8260D
ND
10
2.0
ug/L
1
Isopropylbenzene
98-82-8
8260D
ND
0.50
0.40
ug/L
1
Methyl acetate
79-20-9
8260D
ND
1.0
0.40
ug/L
1
Methyl tertiary butyl ether (MTBE)
1634-04-4
8260D
ND
0.50
0.40
ug/L
1
4-Methyl-2-pentanone
108-10-1
8260D
ND
10
2.0
ug/L
1
Methylcyclohexane
108-87-2
8260D
ND
5.0
0.40
ug/L
1
Methylene chloride
75-09-2
8260D
ND
0.50
0.40
ug/L
1
Styrene
100-42-5
8260D
ND
0.50
0.41
ug/L
1
1,1,2,2-Tetrachloroethane
79-34-5
8260D
ND
0.50
0.40
ug/L
1
Tetrachloroethene
127-18-4
8260D
ND
0.50
0.40
ug/L
1
Toluene
108-88-3
8260D
ND
0.50
0.40
ug/L
1
1,1,2-Trichloro-1,2,2-Trifluoroethane
76-13-1
8260D
ND
1.0
0.42
ug/L
1
1,2,4-Trichlorobenzene
120-82-1
8260D
ND
0.50
0.40
ug/L
1
1,1,1-Trichloroethane
71-55-6
8260D
ND
0.50
0.40
ug/L
1
1,1,2-Trichloroethane
79-00-5
8260D
ND
0.50
0.40
ug/L
1
LOQ = Limit of Quantitation B = Detected in the method blank
E = Quantitation of
compound exceeded the calibration range
DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria
P = The RPD between two GC columns exceeds 40 %
J = Estimated result <
LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 85 of 131

Volatile Organic Compounds by GC/MS
Client:Terracon Consultants, Inc. Laboratory ID:VB26118-015
Description: TB1 Matrix: Aqueous
Date Sampled:02/25/2020 Project Name: Mt. Pleasant DOT
Date Received:02/26/2020 Project Number: 71177023
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 5030B 8260D 1 02/29/2020 0357 STM 46473
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
Trichloroethene
79-01-6
8260D
ND
0.50
0.40
ug/L
1
Trichlorofluoromethane
75-69-4
8260D
ND
0.50
0.40
ug/L
1
Vinyl chloride
75-01-4
8260D
ND
0.50
0.40
ug/L
1
Xylenes (total)
1330-20-7
8260D
ND
1.0
0.40
ug/L
1
Run 1 Acceptance
Surrogate
Q % Recovery Limits
Bromofluorobenzene
1,2-Dichloroethane-d4
Toluene-d8
105 70-130
109 70-130
114 70-130
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL
H = Out of holding time W = Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 86 of 131

QC Summary
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: VB26118
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 87 of 131

Volatile Organic Compounds by GC/MS - MB
Sample ID: VQ46473-001 Matrix: Aqueous
Batch:46473 Prep Method: 5030E
Analytical Method: 8260D
Parameter
Result Q
Dil
LOQ
DL
Units
Analysis Date
Acetone
ND
1
10
4.0
ug/L
02/28/2020 1955
Benzene
ND
1
0.50
0.40
ug/L
02/28/2020 1955
Bromodichloromethane
ND
1
0.50
0.40
ug/L
02/28/2020 1955
Bromoform
ND
1
0.50
0.40
ug/L
02/28/2020 1955
Bromomethane (Methyl bromide)
ND
1
0.50
0.40
ug/L
02/28/2020 1955
2-Butanone (MEK)
ND
1
10
2.0
ug/L
02/28/2020 1955
Carbon disulfide
ND
1
0.50
0.40
ug/L
02/28/2020 1955
Carbon tetrachloride
ND
1
0.50
0.40
ug/L
02/28/2020 1955
Chlorobenzene
ND
1
0.50
0.40
ug/L
02/28/2020 1955
Chloroethane
ND
1
0.50
0.40
ug/L
02/28/2020 1955
Chloroform
ND
1
0.50
0.40
ug/L
02/28/2020 1955
Chloromethane (Methyl chloride)
ND
1
0.50
0.40
ug/L
02/28/2020 1955
Cyclohexane
ND
1
0.50
0.40
ug/L
02/28/2020 1955
1,2-Dibromo-3-chloropropane (DBCP)
ND
1
0.50
0.40
ug/L
02/28/2020 1955
Dibromochloromethane
ND
1
0.50
0.40
ug/L
02/28/2020 1955
1,2-Dibromoethane (EDB)
ND
1
0.50
0.40
ug/L
02/28/2020 1955
1,2-Dichlorobenzene
ND
1
0.50
0.40
ug/L
02/28/2020 1955
1,3-Dichlorobenzene
ND
1
0.50
0.40
ug/L
02/28/2020 1955
1,4-Dichlorobenzene
ND
1
0.50
0.40
ug/L
02/28/2020 1955
Dichlorodifluoromethane
ND
1
0.50
0.40
ug/L
02/28/2020 1955
1,1-Dichloroethane
ND
1
0.50
0.40
ug/L
02/28/2020 1955
1,2-Dichloroethane
ND
1
0.50
0.40
ug/L
02/28/2020 1955
1,1-Dichloroethene
ND
1
0.50
0.40
ug/L
02/28/2020 1955
cis- 1,2-Dichloroethene
ND
1
0.50
0.40
ug/L
02/28/2020 1955
trans- 1,2-Dichloroethene
ND
1
0.50
0.40
ug/L
02/28/2020 1955
1,2-Dichloropropane
ND
1
0.50
0.40
ug/L
02/28/2020 1955
cis- 1,3-Dichloropropene
ND
1
0.50
0.40
ug/L
02/28/2020 1955
trans- 1,3-Dichloropropene
ND
1
0.50
0.40
ug/L
02/28/2020 1955
Ethylbenzene
ND
1
0.50
0.40
ug/L
02/28/2020 1955
2-Hexanone
ND
1
10
2.0
ug/L
02/28/2020 1955
Isopropylbenzene
ND
1
0.50
0.40
ug/L
02/28/2020 1955
Methyl acetate
ND
1
1.0
0.40
ug/L
02/28/2020 1955
Methyl tertiary butyl ether (MTBE)
ND
1
0.50
0.40
ug/L
02/28/2020 1955
4-Methyl-2-pentanone
ND
1
10
2.0
ug/L
02/28/2020 1955
Methylcyclohexane
ND
1
5.0
0.40
ug/L
02/28/2020 1955
Methylene chloride
ND
1
0.50
0.40
ug/L
02/28/2020 1955
Styrene
ND
1
0.50
0.41
ug/L
02/28/2020 1955
1,1,2,2-Tetrachloroethane
ND
1
0.50
0.40
ug/L
02/28/2020 1955
Tetrachloroethene
ND
1
0.50
0.40
ug/L
02/28/2020 1955
Toluene
ND
1
0.50
0.40
ug/L
02/28/2020 1955
1,1,2-Trichloro-1,2,2-Trifluoroethane
ND
1
1.0
0.42
ug/L
02/28/2020 1955
1,2,4-Trichlorobenzene
ND
1
0.50
0.40
ug/L
02/28/2020 1955
1, 1, 1 -Trichloroethane
ND
1
0.50
0.40
ug/L
02/28/2020 1955
1,1,2-Trichloroethane
ND
1
0.50
0.40
ug/L
02/28/2020 1955
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: VB26118
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 88 of 131

Volatile Organic Compounds by GC/MS - MB
Sample ID: VQ46473-001 Matrix: Aqueous
Batch:46473 Prep Method: 5030E
Analytical Method: 8260D
Parameter
Result
Q Dil
LOQ
DL
Units
Analysis Date
Trichloroethene
ND
1
0.50
0.40
ug/L
02/28/2020 1955
Trichlorofluoromethane
ND
1
0.50
0.40
ug/L
02/28/2020 1955
Vinyl chloride
ND
1
0.50
0.40
ug/L
02/28/2020 1955
Xylenes (total)
ND
1
1.0
0.40
ug/L
02/28/2020 1955
Surrogate
Q % Rec
Acceptance
Limit
Bromofluorobenzene 95 70-130
1,2-Dichloroethane-d4 87 70-130
Toluene-d8 91 70-130
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: VB26118
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 89 of 131

Volatile Organic Compounds by GC/MS - LCS
Sample ID: VQ46473-002
Matrix: Aqueous
Batch:46473
Prep Method:
5030E
Analytical Method: 8260D
Spike
Amount
Result
% Rec
Parameter
(ug/L)
(ug/L)
Q Dil
% Rec
Limit
Analysis Date
Acetone
100
95
1
95
60-140
02/28/2020 1821
Benzene
50
50
1
99
70-130
02/28/2020 1821
Bromodichloromethane
50
49
1
99
70-130
02/28/2020 1821
Bromoform
50
42
1
85
70-130
02/28/2020 1821
Bromomethane (Methyl bromide)
50
50
1
100
70-130
02/28/2020 1821
2-Butanone (MEK)
100
100
1
101
70-130
02/28/2020 1821
Carbon disulfide
50
52
1
103
70-130
02/28/2020 1821
Carbon tetrachloride
50
53
1
107
70-130
02/28/2020 1821
Chlorobenzene
50
49
1
98
70-130
02/28/2020 1821
Chloroethane
50
48
1
96
70-130
02/28/2020 1821
Chloroform
50
50
1
100
70-130
02/28/2020 1821
Chloromethane (Methyl chloride)
50
48
1
97
60-140
02/28/2020 1821
Cyclohexane
50
44
1
87
70-130
02/28/2020 1821
1,2-Dibromo-3-chloropropane (DBCP)
50
44
1
89
70-130
02/28/2020 1821
Dibromochloromethane
50
51
1
102
70-130
02/28/2020 1821
1,2-Dibromoethane (EDB)
50
49
1
97
70-130
02/28/2020 1821
1,2-Dichlorobenzene
50
49
1
99
70-130
02/28/2020 1821
1,3-Dichlorobenzene
50
50
1
101
70-130
02/28/2020 1821
1,4-Dichlorobenzene
50
49
1
98
70-130
02/28/2020 1821
Dichlorodifluoromethane
50
41
1
81
60-140
02/28/2020 1821
1,1-Dichloroethane
50
50
1
99
70-130
02/28/2020 1821
1,2-Dichloroethane
50
47
1
94
70-130
02/28/2020 1821
1,1-Dichloroethene
50
52
1
104
70-130
02/28/2020 1821
cis- 1,2-Dichloroethene
50
50
1
100
70-130
02/28/2020 1821
trans- 1,2-Dichloroethene
50
51
1
102
70-130
02/28/2020 1821
1,2-Dichloropropane
50
49
1
98
70-130
02/28/2020 1821
cis- 1,3-Dichloropropene
50
51
1
101
70-130
02/28/2020 1821
trans- 1,3-Dichloropropene
50
51
1
102
70-130
02/28/2020 1821
Ethylbenzene
50
50
1
100
70-130
02/28/2020 1821
2-Hexanone
100
98
1
98
70-130
02/28/2020 1821
Isopropylbenzene
50
53
1
105
70-130
02/28/2020 1821
Methyl acetate
50
43
1
86
70-130
02/28/2020 1821
Methyl tertiary butyl ether (MTBE)
50
50
1
100
70-130
02/28/2020 1821
4-Methyl-2-pentanone
100
96
1
96
70-130
02/28/2020 1821
Methylcyclohexane
50
48
1
95
70-130
02/28/2020 1821
Methylene chloride
50
49
1
98
70-130
02/28/2020 1821
Styrene
50
46
1
91
70-130
02/28/2020 1821
1,1,2,2-Tetrachloroethane
50
49
1
98
70-130
02/28/2020 1821
Tetrachloroethene
50
52
1
103
70-130
02/28/2020 1821
Toluene
50
49
1
98
70-130
02/28/2020 1821
1,1,2-Trichloro-1,2,2-Trifluoroethane
50
48
1
96
70-130
02/28/2020 1821
1,2,4-Trichlorobenzene
50
54
1
108
70-130
02/28/2020 1821
1,1,1-Trichloroethane
50
51
1
103
70-130
02/28/2020 1821
1,1,2-Trichloroethane
50
48
1
96
70-130
02/28/2020 1821
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: VB26118
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 90 of 131

Volatile Organic Compounds by GC/MS - LCS
Sample ID: VQ46473-002
Matrix: Aqueous
Batch:46473
Prep Method: 5030E
Analytical Method: 8260D
Spike
Amount
Result
% Rec
Parameter
(ug/L)
(ug/L) Q
Dil % Rec
Limit
Analysis Date
Trichloroethene
50
50
1 100
70-130
02/28/2020 1821
Trichlorofluoromethane
50
47
1 95
70-130
02/28/2020 1821
Vinyl chloride
50
54
1 109
70-130
02/28/2020 1821
Xylenes (total)
100
100
1 100
70-130
02/28/2020 1821
Surrogate
Q % Rec
Acceptance
Limit
Bromofluorobenzene 94 70-130
1,2-Dichloroethane-d4 95 70-130
Toluene-d8 98 70-130
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: VB26118
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 91 of 131

Volatile Organic Compounds by GC/MS - MB
Sample ID: VQ46516-001 Matrix: Aqueous
Batch:46516 Prep Method: 5030E
Analytical Method: 8260D
Parameter
Result Q
Dil
LOQ
DL
Units
Analysis Date
Acetone
ND
1
10
4.0
ug/L
02/29/2020 1633
Benzene
ND
1
0.50
0.40
ug/L
02/29/2020 1633
Bromodichloromethane
ND
1
0.50
0.40
ug/L
02/29/2020 1633
Bromoform
ND
1
0.50
0.40
ug/L
02/29/2020 1633
Bromomethane (Methyl bromide)
ND
1
0.50
0.40
ug/L
02/29/2020 1633
2-Butanone (MEK)
ND
1
10
2.0
ug/L
02/29/2020 1633
Carbon disulfide
ND
1
0.50
0.40
ug/L
02/29/2020 1633
Carbon tetrachloride
ND
1
0.50
0.40
ug/L
02/29/2020 1633
Chlorobenzene
ND
1
0.50
0.40
ug/L
02/29/2020 1633
Chloroethane
ND
1
0.50
0.40
ug/L
02/29/2020 1633
Chloroform
ND
1
0.50
0.40
ug/L
02/29/2020 1633
Chloromethane (Methyl chloride)
ND
1
0.50
0.40
ug/L
02/29/2020 1633
Cyclohexane
ND
1
0.50
0.40
ug/L
02/29/2020 1633
1,2-Dibromo-3-chloropropane (DBCP)
ND
1
0.50
0.40
ug/L
02/29/2020 1633
Dibromochloromethane
ND
1
0.50
0.40
ug/L
02/29/2020 1633
1,2-Dibromoethane (EDB)
ND
1
0.50
0.40
ug/L
02/29/2020 1633
1,2-Dichlorobenzene
ND
1
0.50
0.40
ug/L
02/29/2020 1633
1,3-Dichlorobenzene
ND
1
0.50
0.40
ug/L
02/29/2020 1633
1,4-Dichlorobenzene
ND
1
0.50
0.40
ug/L
02/29/2020 1633
Dichlorodifluoromethane
ND
1
0.50
0.40
ug/L
02/29/2020 1633
1,1-Dichloroethane
ND
1
0.50
0.40
ug/L
02/29/2020 1633
1,2-Dichloroethane
ND
1
0.50
0.40
ug/L
02/29/2020 1633
1,1-Dichloroethene
ND
1
0.50
0.40
ug/L
02/29/2020 1633
cis- 1,2-Dichloroethene
ND
1
0.50
0.40
ug/L
02/29/2020 1633
trans- 1,2-Dichloroethene
ND
1
0.50
0.40
ug/L
02/29/2020 1633
1,2-Dichloropropane
ND
1
0.50
0.40
ug/L
02/29/2020 1633
cis- 1,3-Dichloropropene
ND
1
0.50
0.40
ug/L
02/29/2020 1633
trans- 1,3-Dichloropropene
ND
1
0.50
0.40
ug/L
02/29/2020 1633
Ethylbenzene
ND
1
0.50
0.40
ug/L
02/29/2020 1633
2-Hexanone
ND
1
10
2.0
ug/L
02/29/2020 1633
Isopropylbenzene
ND
1
0.50
0.40
ug/L
02/29/2020 1633
Methyl acetate
ND
1
1.0
0.40
ug/L
02/29/2020 1633
Methyl tertiary butyl ether (MTBE)
ND
1
0.50
0.40
ug/L
02/29/2020 1633
4-Methyl-2-pentanone
ND
1
10
2.0
ug/L
02/29/2020 1633
Methylcyclohexane
ND
1
5.0
0.40
ug/L
02/29/2020 1633
Methylene chloride
ND
1
0.50
0.40
ug/L
02/29/2020 1633
Styrene
ND
1
0.50
0.41
ug/L
02/29/2020 1633
1,1,2,2-Tetrachloroethane
ND
1
0.50
0.40
ug/L
02/29/2020 1633
Tetrachloroethene
ND
1
0.50
0.40
ug/L
02/29/2020 1633
Toluene
ND
1
0.50
0.40
ug/L
02/29/2020 1633
1,1,2-Trichloro-1,2,2-Trifluoroethane
ND
1
1.0
0.42
ug/L
02/29/2020 1633
1,2,4-Trichlorobenzene
ND
1
0.50
0.40
ug/L
02/29/2020 1633
1, 1, 1 -Trichloroethane
ND
1
0.50
0.40
ug/L
02/29/2020 1633
1,1,2-Trichloroethane
ND
1
0.50
0.40
ug/L
02/29/2020 1633
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: VB26118
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 92 of 131

Volatile Organic Compounds by GC/MS - MB
Sample ID: VQ46516-001 Matrix: Aqueous
Batch:46516 Prep Method: 5030E
Analytical Method: 8260D
Parameter
Result
Q Dil
LOQ
DL
Units
Analysis Date
Trichloroethene
ND
1
0.50
0.40
ug/L
02/29/2020 1633
Trichlorofluoromethane
ND
1
0.50
0.40
ug/L
02/29/2020 1633
Vinyl chloride
ND
1
0.50
0.40
ug/L
02/29/2020 1633
Xylenes (total)
ND
1
1.0
0.40
ug/L
02/29/2020 1633
Surrogate
Q % Rec
Acceptance
Limit
Bromofluorobenzene 98 70-130
1,2-Dichloroethane-d4 91 70-130
Toluene-d8 107 70-130
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: VB26118
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 93 of 131

Volatile Organic Compounds by GC/MS - LCS
Sample ID: VQ46516-002
Matrix: Aqueous
Batch:46516
Prep Method:
5030E
Analytical Method: 8260D
Spike
Amount
Result
% Rec
Parameter
(ug/L)
(ug/L)
Q Dil
% Rec
Limit
Analysis Date
Acetone
100
78
1
78
60-140
02/29/2020 1433
Benzene
50
49
1
99
70-130
02/29/2020 1433
Bromodichloromethane
50
49
1
98
70-130
02/29/2020 1433
Bromoform
50
56
1
112
70-130
02/29/2020 1433
Bromomethane (Methyl bromide)
50
54
1
108
70-130
02/29/2020 1433
2-Butanone (MEK)
100
95
1
95
70-130
02/29/2020 1433
Carbon disulfide
50
47
1
95
70-130
02/29/2020 1433
Carbon tetrachloride
50
44
1
88
70-130
02/29/2020 1433
Chlorobenzene
50
51
1
101
70-130
02/29/2020 1433
Chloroethane
50
52
1
104
70-130
02/29/2020 1433
Chloroform
50
44
1
88
70-130
02/29/2020 1433
Chloromethane (Methyl chloride)
50
46
1
93
60-140
02/29/2020 1433
Cyclohexane
50
42
1
84
70-130
02/29/2020 1433
1,2-Dibromo-3-chloropropane (DBCP)
50
47
1
94
70-130
02/29/2020 1433
Dibromochloromethane
50
51
1
102
70-130
02/29/2020 1433
1,2-Dibromoethane (EDB)
50
50
1
99
70-130
02/29/2020 1433
1,2-Dichlorobenzene
50
51
1
103
70-130
02/29/2020 1433
1,3-Dichlorobenzene
50
53
1
107
70-130
02/29/2020 1433
1,4-Dichlorobenzene
50
52
1
104
70-130
02/29/2020 1433
Dichlorodifluoromethane
50
46
1
91
60-140
02/29/2020 1433
1,1-Dichloroethane
50
46
1
92
70-130
02/29/2020 1433
1,2-Dichloroethane
50
43
1
87
70-130
02/29/2020 1433
1,1-Dichloroethene
50
47
1
95
70-130
02/29/2020 1433
cis- 1,2-Dichloroethene
50
48
1
96
70-130
02/29/2020 1433
trans- 1,2-Dichloroethene
50
49
1
98
70-130
02/29/2020 1433
1,2-Dichloropropane
50
48
1
97
70-130
02/29/2020 1433
cis- 1,3-Dichloropropene
50
51
1
102
70-130
02/29/2020 1433
trans- 1,3-Dichloropropene
50
48
1
96
70-130
02/29/2020 1433
Ethylbenzene
50
51
1
103
70-130
02/29/2020 1433
2-Hexanone
100
98
1
98
70-130
02/29/2020 1433
Isopropylbenzene
50
54
1
109
70-130
02/29/2020 1433
Methyl acetate
50
42
1
83
70-130
02/29/2020 1433
Methyl tertiary butyl ether (MTBE)
50
44
1
89
70-130
02/29/2020 1433
4-Methyl-2-pentanone
100
100
1
100
70-130
02/29/2020 1433
Methylcyclohexane
50
49
1
98
70-130
02/29/2020 1433
Methylene chloride
50
43
1
87
70-130
02/29/2020 1433
Styrene
50
53
1
106
70-130
02/29/2020 1433
1,1,2,2-Tetrachloroethane
50
50
1
100
70-130
02/29/2020 1433
Tetrachloroethene
50
52
1
105
70-130
02/29/2020 1433
Toluene
50
50
1
100
70-130
02/29/2020 1433
1,1,2-Trichloro-1,2,2-Trifluoroethane
50
47
1
94
70-130
02/29/2020 1433
1,2,4-Trichlorobenzene
50
50
1
100
70-130
02/29/2020 1433
1,1,1-Trichloroethane
50
45
1
90
70-130
02/29/2020 1433
1,1,2-Trichloroethane
50
48
1
97
70-130
02/29/2020 1433
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: VB26118
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 94 of 131

Volatile Organic Compounds by GC/MS - LCS
Sample ID: VQ46516-002
Matrix: Aqueous
Batch:46516
Prep Method: 5030E
Analytical Method: 8260D
Spike
Amount
Result
% Rec
Parameter
(ug/L)
(ug/L) Q
Dil % Rec
Limit
Analysis Date
Trichloroethene
50
54
1 109
70-130
02/29/2020 1433
Trichlorofluoromethane
50
50
1 101
70-130
02/29/2020 1433
Vinyl chloride
50
50
1 99
70-130
02/29/2020 1433
Xylenes (total)
100
100
1 103
70-130
02/29/2020 1433
Surrogate
Q % Rec
Acceptance
Limit
Bromofluorobenzene 96 70-130
1,2-Dichloroethane-d4 83 70-130
Toluene-d8 96 70-130
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: VB26118
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 95 of 131

Semivolatile Organic Compounds by GC/MS - MB
Sample ID: VQ46578-001 Matrix: Aqueous
Batch:46578 Prep Method: 3520C
Analytical Method: 8270E Prep Date: 03/02/2020 1316
Parameter
Result Q
Dil
LOQ
DL
Units
Analysis Date
Acenaphthene
ND
1
0.80
0.20
ug/L
03/04/2020 1402
Acenaphthylene
ND
1
0.80
0.20
ug/L
03/04/2020 1402
Acetophenone
ND
1
4.0
0.50
ug/L
03/04/2020 1402
Anthracene
ND
1
0.80
0.20
ug/L
03/04/2020 1402
Atrazine
ND
1
4.0
0.50
ug/L
03/04/2020 1402
Benzaldehyde
ND
1
8.0
0.50
ug/L
03/04/2020 1402
Benzo(a)anthracene
ND
1
0.80
0.20
ug/L
03/04/2020 1402
Benzo(a)pyrene
ND
1
0.80
0.20
ug/L
03/04/2020 1402
Benzo(b)fluoranthene
ND
1
0.80
0.20
ug/L
03/04/2020 1402
Benzo(g,h,i)perylene
ND
1
0.80
0.20
ug/L
03/04/2020 1402
Benzo(k)fluoranthene
ND
1
0.80
0.20
ug/L
03/04/2020 1402
1,1'-Biphenyl
ND
1
4.0
0.50
ug/L
03/04/2020 1402
4-Bromophenyl phenyl ether
ND
1
4.0
0.50
ug/L
03/04/2020 1402
Butyl benzyl phthalate
ND
1
4.0
0.50
ug/L
03/04/2020 1402
Caprolactam
ND
1
8.0
1.0
ug/L
03/04/2020 1402
Carbazole
ND
1
4.0
0.50
ug/L
03/04/2020 1402
bis (2-Chloro-1-methylethyl) ether
ND
1
4.0
0.50
ug/L
03/04/2020 1402
4-Chloro-3-methyl phenol
ND
1
4.0
0.50
ug/L
03/04/2020 1402
4-Chloroaniline
ND
1
8.0
0.50
ug/L
03/04/2020 1402
bis(2-Chloroethoxy)methane
ND
1
4.0
0.50
ug/L
03/04/2020 1402
bis(2-Chloroethyl)ether
ND
1
4.0
0.50
ug/L
03/04/2020 1402
2-Chloronaphthalene
ND
1
4.0
0.50
ug/L
03/04/2020 1402
2-Chlorophenol
ND
1
4.0
0.50
ug/L
03/04/2020 1402
4-Chlorophenyl phenyl ether
ND
1
4.0
0.50
ug/L
03/04/2020 1402
Chrysene
ND
1
0.80
0.20
ug/L
03/04/2020 1402
Dibenzo(a,h)anthracene
ND
1
0.80
0.20
ug/L
03/04/2020 1402
Dibenzofuran
ND
1
4.0
0.50
ug/L
03/04/2020 1402
3,3'-Dichlorobenzidine
ND
1
4.0
1.8
ug/L
03/04/2020 1402
2,4-Dichlorophenol
ND
1
8.0
1.0
ug/L
03/04/2020 1402
Diethylphthalate
ND
1
4.0
0.50
ug/L
03/04/2020 1402
Dimethyl phthalate
ND
1
4.0
0.50
ug/L
03/04/2020 1402
2,4-Dimethylphenol
ND
1
4.0
1.0
ug/L
03/04/2020 1402
Di-n-butyl phthalate
ND
1
4.0
0.50
ug/L
03/04/2020 1402
4,6-Dinitro-2-methyl phenol
ND
1
20
1.0
ug/L
03/04/2020 1402
2,4-Dinitrophenol
ND
1
20
1.0
ug/L
03/04/2020 1402
2,4-Dinitrotoluene
ND
1
8.0
0.50
ug/L
03/04/2020 1402
2,6-Dinitrotoluene
ND
1
8.0
0.50
ug/L
03/04/2020 1402
Di-n-octylphthalate
ND
1
4.0
0.50
ug/L
03/04/2020 1402
bis(2-Ethylhexyl)phthalate
ND
1
4.0
0.50
ug/L
03/04/2020 1402
Fluoranthene
ND
1
0.80
0.20
ug/L
03/04/2020 1402
Fluorene
ND
1
0.80
0.20
ug/L
03/04/2020 1402
Hexachlorobenzene
ND
1
4.0
0.50
ug/L
03/04/2020 1402
Hexachlorobutadiene
ND
1
4.0
0.50
ug/L
03/04/2020 1402
Hexachlorocyclopentadiene
ND
1
20
2.0
ug/L
03/04/2020 1402
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: VB26118
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 96 of 131

Semivolatile Organic Compounds by GC/MS - MB
Sample ID: VQ46578-001 Matrix: Aqueous
Batch:46578 Prep Method: 3520C
Analytical Method: 8270E Prep Date: 03/02/2020 1316
Parameter
Result Q
Dil
LOQ
DL
Units
Analysis Date
Hexachloroethane
ND
1
4.0
1.0
ug/L
03/04/20201402
Indeno(1,2,3-c,d)pyrene
ND
1
0.80
0.20
ug/L
03/04/20201402
Isophorone
ND
1
4.0
0.50
ug/L
03/04/20201402
2-Methyl naphthalene
ND
1
0.80
0.20
ug/L
03/04/20201402
2-Methylphenol
ND
1
4.0
1.0
ug/L
03/04/20201402
3+4-Methylphenol
ND
1
4.0
1.5
ug/L
03/04/20201402
Naphthalene
ND
1
0.80
0.20
ug/L
03/04/20201402
2-Nitroaniline
ND
1
8.0
0.50
ug/L
03/04/20201402
3-Nitroaniline
ND
1
8.0
1.0
ug/L
03/04/20201402
4-Nitroaniline
ND
1
8.0
1.5
ug/L
03/04/20201402
Nitrobenzene
ND
1
4.0
1.5
ug/L
03/04/20201402
2-Nitrophenol
ND
1
4.0
1.0
ug/L
03/04/20201402
4-Nitrophenol
ND
1
20
2.0
ug/L
03/04/20201402
N-Nitrosodi-n-propylamine
ND
1
4.0
0.50
ug/L
03/04/20201402
N-Nitrosodiphenylamine (Diphenylamine)
ND
1
4.0
0.50
ug/L
03/04/2020 1402
Pentachlorophenol
ND
1
20
2.0
ug/L
03/04/20201402
Phenanthrene
ND
1
0.80
0.20
ug/L
03/04/20201402
Phenol
ND
1
4.0
0.50
ug/L
03/04/20201402
Pyrene
ND
1
0.80
0.20
ug/L
03/04/20201402
2,4,5-Trichlorophenol
ND
1
4.0
0.50
ug/L
03/04/20201402
2,4,6-Trichlorophenol
ND
1
4.0
0.50
ug/L
03/04/20201402
Surrogate Q % Rec Acceptance
Limit
2-Fluorobiphenyl
80
37-129
2-Fluorophenol
52
24-127
Nitrobenzene-d5
91
38-127
Phenol-d5
69
28-128
Terphenyl-d 14
111
10-148
2,4,6-Tribromophenol
99
35-144
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: VB26118
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 97 of 131

Semivolatile Organic Compounds by GC/MS - LCS
Sample ID: VQ46578-002
Matrix: Aqueous
Batch:46578
Prep Method:
3520C
Analytical Method: 8270E
Prep Date: 03/02/2020 1316
Spike
Amount
Result
% Rec
Parameter
(ug/L)
(ug/L)
Q Dil
% Rec
Limit
Analysis Date
Acenaphthene
40
34
1
85
30-122
03/04/2020 1427
Acenaphthylene
40
34
1
85
30-130
03/04/2020 1427
Acetophenone
40
35
1
87
30-130
03/04/2020 1427
Anthracene
40
33
1
82
30-123
03/04/2020 1427
Atrazine
40
39
1
97
30-130
03/04/2020 1427
Benzaldehyde
40
20
1
50
20-115
03/04/2020 1427
Benzo(a)anthracene
40
37
1
93
40-125
03/04/2020 1427
Benzo(a)pyrene
40
33
1
83
40-128
03/04/2020 1427
Benzo(b)fluoranthene
40
38
1
95
30-130
03/04/2020 1427
Benzo(g,h,i)perylene
40
39
1
98
30-130
03/04/2020 1427
Benzo(k)fluoranthene
40
36
1
91
30-130
03/04/2020 1427
1,1'-Biphenyl
40
33
1
83
30-130
03/04/2020 1427
4-Bromophenyl phenyl ether
40
32
1
79
30-124
03/04/2020 1427
Butyl benzyl phthalate
40
41
1
103
30-130
03/04/2020 1427
Caprolactam
40
39
1
98
30-130
03/04/2020 1427
Carbazole
40
36
1
90
30-130
03/04/2020 1427
bis (2-Chloro-1-methylethyl) ether
40
38
1
94
30-130
03/04/2020 1427
4-Chloro-3-methyl phenol
40
39
1
98
30-123
03/04/2020 1427
4-Chloroaniline
40
37
1
93
12-157
03/04/2020 1427
bis(2-Chloroethoxy)methane
40
31
1
78
30-130
03/04/2020 1427
bis(2-Chloroethyl)ether
40
36
1
91
30-130
03/04/2020 1427
2-Chloronaphthalene
40
32
1
80
30-130
03/04/2020 1427
2-Chlorophenol
40
37
1
92
30-130
03/04/2020 1427
4-Chlorophenyl phenyl ether
40
31
1
78
30-121
03/04/2020 1427
Chrysene
40
37
1
91
30-130
03/04/2020 1427
Dibenzo(a,h)anthracene
40
40
1
99
30-130
03/04/2020 1427
Dibenzofuran
40
32
1
80
30-118
03/04/2020 1427
3,3'-Dichlorobenzidine
40
30
1
76
10-126
03/04/2020 1427
2,4-Dichlorophenol
40
33
1
83
30-121
03/04/2020 1427
Diethylphthalate
40
37
1
93
40-125
03/04/2020 1427
Dimethyl phthalate
40
36
1
89
40-127
03/04/2020 1427
2,4-Dimethyl phenol
40
30
1
75
20-125
03/04/2020 1427
Di-n-butyl phthalate
40
38
1
94
40-127
03/04/2020 1427
4,6-Dinitro-2-methyl phenol
40
47
1
117
30-130
03/04/2020 1427
2,4-Dinitrophenol
80
92
1
115
11-126
03/04/2020 1427
2,4-Dinitrotoluene
40
41
1
102
30-130
03/04/2020 1427
2,6-Dinitrotoluene
40
41
1
102
30-130
03/04/2020 1427
Di-n-octylphthalate
40
35
1
87
30-130
03/04/2020 1427
bis(2-Ethylhexyl)phthalate
40
39
1
97
30-130
03/04/2020 1427
Fluoranthene
40
34
1
85
40-128
03/04/2020 1427
Fluorene
40
33
1
83
30-124
03/04/2020 1427
Hexachlorobenzene
40
38
1
94
30-125
03/04/2020 1427
Hexachlorobutadiene
40
31
1
78
24-110
03/04/2020 1427
Hexachlorocyclopentadiene
200
140
1
69
22-122
03/04/2020 1427
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: VB26118
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 98 of 131

Semivolatile Organic Compounds by GC/MS - LCS
Sample ID: VQ46578-002
Matrix: Aqueous
Batch:46578
Prep Method:
3520C
Analytical Method: 8270E
Prep Date: 03/02/2020 1316
Spike
Amount
Result
% Rec
Parameter
(ug/L)
(ug/L)
Q Dil
% Rec
Limit
Analysis Date
Hexachloroethane
40
33
1
82
30-130
03/04/20201427
Indeno(1,2,3-c,d)pyrene
40
38
1
96
30-130
03/04/20201427
Isophorone
40
34
1
85
30-130
03/04/20201427
2-Methyl naphthalene
40
31
1
77
40-132
03/04/20201427
2-Methylphenol
40
37
1
92
30-130
03/04/20201427
3+4-Methyl phenol
40
37
1
93
30-130
03/04/20201427
Naphthalene
40
30
1
75
30-130
03/04/20201427
2-Nitroaniline
40
37
1
94
30-130
03/04/20201427
3-Nitroaniline
40
32
1
80
30-130
03/04/20201427
4-Nitroaniline
40
39
1
99
30-135
03/04/20201427
Nitrobenzene
40
38
1
94
30-130
03/04/20201427
2-Nitrophenol
40
40
1
100
30-130
03/04/20201427
4-Nitrophenol
80
83
1
104
30-130
03/04/20201427
N-Nitrosodi-n-propylamine
40
39
1
98
30-130
03/04/20201427
N-Nitrosodiphenylamine (Diphenylamine)
40
36
1
90
30-123
03/04/2020 1427
Pentachlorophenol
80
78
1
98
30-130
03/04/20201427
Phenanthrene
40
33
1
84
40-123
03/04/20201427
Phenol
40
37
1
93
30-130
03/04/20201427
Pyrene
40
38
1
94
40-126
03/04/20201427
2,4,5-Trichlorophenol
40
36
1
89
30-123
03/04/20201427
2,4,6-Trichlorophenol
40
36
1
89
30-130
03/04/20201427
Surrogate Q % Rec Acceptance
Limit
2-Fluorobiphenyl
80
37-129
2-Fluorophenol
77
24-127
Nitrobenzene-d5
98
38-127
Phenol-d5
88
28-128
Terphenyl-d 14
107
10-148
2,4,6-Tribromophenol
106
35-144
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: VB26118
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 99 of 131

Semivolatile Organic Compounds by GC/MS - MS
Sample ID: VB26118-006MS
Matrix: Aqueous
Batch:46578
Prep Method: 3520C
Analytical Method: 8270E
Prep Date: 03/02/2020 1316
Sample
Spike
Amount
Amount
Result
% Rec
Parameter
(ug/L)
(ug/L)
(ug/L)
Q Dil
% Rec
Limit
Analysis Date
Acenaphthene
0.29
80
71
1
89
30-122
03/04/2020 2044
Acenaphthylene
ND
80
71
1
89
30-130
03/04/2020 2044
Acetophenone
ND
80
75
1
94
30-130
03/04/2020 2044
Anthracene
ND
80
69
1
86
30-123
03/04/2020 2044
Atrazine
ND
80
78
1
98
30-130
03/04/2020 2044
Benzaldehyde
ND
80
34
1
42
20-115
03/04/2020 2044
Benzo(a)anthracene
ND
80
77
1
96
40-125
03/04/2020 2044
Benzo(a)pyrene
ND
80
71
1
88
40-128
03/04/2020 2044
Benzo(b)fluoranthene
ND
80
76
1
95
30-130
03/04/2020 2044
Benzo(g,h,i)perylene
ND
80
76
1
95
30-130
03/04/2020 2044
Benzo(k)fluoranthene
ND
80
76
1
95
30-130
03/04/2020 2044
1,1'-Biphenyl
ND
80
68
1
85
30-130
03/04/2020 2044
4-Bromophenyl phenyl ether
ND
80
69
1
86
30-124
03/04/2020 2044
Butyl benzyl phthalate
ND
80
83
1
104
30-130
03/04/2020 2044
Caprolactam
ND
80
83
1
104
30-130
03/04/2020 2044
Carbazole
ND
80
78
1
97
30-130
03/04/2020 2044
bis (2-Chloro-1-methylethyl) ether
ND
80
81
1
101
30-130
03/04/2020 2044
4-Chloro-3-methyl phenol
ND
80
80
1
100
30-123
03/04/2020 2044
4-Chloroaniline
ND
80
58
1
72
10-130
03/04/2020 2044
bis(2-Chloroethoxy)methane
ND
80
64
1
80
30-130
03/04/2020 2044
bis(2-Chloroethyl)ether
ND
80
78
1
97
30-130
03/04/2020 2044
2-Chloronaphthalene
ND
80
67
1
84
30-130
03/04/2020 2044
2-Chlorophenol
ND
80
77
1
96
30-130
03/04/2020 2044
4-Chlorophenyl phenyl ether
ND
80
65
1
82
30-121
03/04/2020 2044
Chrysene
ND
80
74
1
92
30-130
03/04/2020 2044
Dibenzo(a,h)anthracene
ND
80
79
1
99
30-130
03/04/2020 2044
Dibenzofuran
ND
80
66
1
83
30-118
03/04/2020 2044
3,3'-Dichlorobenzidine
ND
80
49
1
61
10-126
03/04/2020 2044
2,4-Dichlorophenol
ND
80
71
1
88
30-121
03/04/2020 2044
Diethylphthalate
ND
80
78
1
98
40-125
03/04/2020 2044
Dimethyl phthalate
ND
80
75
1
94
40-127
03/04/2020 2044
2,4-Dimethyl phenol
ND
80
76
1
95
20-125
03/04/2020 2044
Di-n-butyl phthalate
ND
80
78
1
98
40-127
03/04/2020 2044
4,6-Dinitro-2-methyl phenol
ND
80
100
N 1
131
30-130
03/04/2020 2044
2,4-Dinitrophenol
ND
160
220
N 1
135
30-130
03/04/2020 2044
2,4-Dinitrotoluene
ND
80
85
1
106
30-130
03/04/2020 2044
2,6-Dinitrotoluene
ND
80
89
1
111
30-130
03/04/2020 2044
Di-n-octylphthalate
ND
80
76
1
95
30-130
03/04/2020 2044
bis(2-Ethylhexyl)phthalate
ND
80
83
1
103
70-131
03/04/2020 2044
Fluoranthene
ND
80
70
1
88
40-128
03/04/2020 2044
Fluorene
ND
80
70
1
88
30-124
03/04/2020 2044
Hexachlorobenzene
ND
80
80
1
100
30-125
03/04/2020 2044
Hexachlorobutadiene
ND
80
63
1
79
24-110
03/04/2020 2044
Hexachlorocyclopentadiene
ND
400
270
1
67
22-122
03/04/2020 2044
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: VB26118
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 100 of 131

Semivolatile Organic Compounds by GC/MS - MS
Sample ID: VB26118-006MS
Matrix: Aqueous
Batch:46578
Prep Method: 3520C
Analytical Method: 8270E
Prep Date: 03/02/2020 1316
Sample
Spike
Amount
Amount
Result
% Rec
Parameter
(ug/L)
(ug/L)
(ug/L)
Q Dil
% Rec
Limit
Analysis Date
Hexachloroethane
ND
80
75
1
94
30-130
03/04/2020 2044
Indeno(1,2,3-c,d)pyrene
ND
80
76
1
94
30-130
03/04/2020 2044
Isophorone
ND
80
70
1
87
30-130
03/04/2020 2044
2-Methyl naphthalene
ND
80
63
1
78
40-132
03/04/2020 2044
2-Methylphenol
ND
80
80
1
100
30-130
03/04/2020 2044
3+4-Methyl phenol
ND
80
83
1
103
30-130
03/04/2020 2044
Naphthalene
ND
80
62
1
77
30-130
03/04/2020 2044
2-Nitroaniline
ND
80
78
1
98
30-130
03/04/2020 2044
3-Nitroaniline
ND
80
55
1
69
30-130
03/04/2020 2044
4-Nitroaniline
ND
80
84
1
104
30-135
03/04/2020 2044
Nitrobenzene
ND
80
79
1
99
30-130
03/04/2020 2044
2-Nitrophenol
ND
80
88
1
110
30-130
03/04/2020 2044
4-Nitrophenol
ND
160
180
1
110
30-130
03/04/2020 2044
N-Nitrosodi-n-propylamine
ND
80
85
1
107
30-130
03/04/2020 2044
N-Nitrosodiphenylamine (Diphenylamine)
ND
80
78
1
97
30-123
03/04/2020 2044
Pentachlorophenol
ND
160
180
1
112
30-130
03/04/2020 2044
Phenanthrene
ND
80
69
1
87
40-123
03/04/2020 2044
Phenol
ND
80
77
1
96
30-130
03/04/2020 2044
Pyrene
ND
80
76
1
95
40-126
03/04/2020 2044
2,4,5-Trichlorophenol
ND
80
75
1
94
30-123
03/04/2020 2044
2,4,6-Trichlorophenol
ND
80
79
1
99
30-130
03/04/2020 2044
Surrogate Q % Rec Acceptance
Limit
2-Fluorobiphenyl
85
37-129
2-Fluorophenol
82
24-127
Nitrobenzene-d5
100
38-127
Phenol-d5
92
28-128
Terphenyl-d 14
108
10-148
2,4,6-Tribromophenol
121
35-144
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: VB26118
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 101 of 131

Semivolatile Organic Compounds by GC/MS - MSD
Sample ID: VB26118-006MD
Matrix: Aqueous
Batch:46578
Prep Method:
3520C
Analytical Method: 8270E
Prep Date: 03/02/2020 1316
Sample
Spike
Amount
Amount
Result
% Rec
% RPD
Parameter
(ug/L)
(ug/L)
(ug/L)
Q Dil
% Rec % RPD
Limit
Limit
Analysis Date
Acenaphthene
0.29
80
70
1
87
1.8
30-122
40
03/04/2020 2109
Acenaphthylene
ND
80
71
1
89
0.027
30-130
40
03/04/2020 2109
Acetophenone
ND
80
75
1
93
0.27
30-130
40
03/04/2020 2109
Anthracene
ND
80
67
1
84
2.3
30-123
40
03/04/2020 2109
Atrazine
ND
80
78
1
97
0.90
30-130
40
03/04/2020 2109
Benzaldehyde
ND
80
37
1
46
8.4
20-115
40
03/04/2020 2109
Benzo(a)anthracene
ND
80
75
1
94
2.6
40-125
40
03/04/2020 2109
Benzo(a)pyrene
ND
80
68
1
85
3.6
40-128
40
03/04/2020 2109
Benzo(b)fluoranthene
ND
80
74
1
93
2.7
30-130
40
03/04/2020 2109
Benzo(g,h,i)perylene
ND
80
72
1
91
4.8
30-130
40
03/04/2020 2109
Benzo(k)fluoranthene
ND
80
75
1
94
0.45
30-130
40
03/04/2020 2109
1,1'-Biphenyl
ND
80
70
1
87
2.6
30-130
40
03/04/2020 2109
4-Bromophenyl phenyl ether
ND
80
68
1
85
0.93
30-124
40
03/04/2020 2109
Butyl benzyl phthalate
ND
80
82
1
103
0.84
30-130
40
03/04/2020 2109
Caprolactam
ND
80
83
1
103
0.50
30-130
40
03/04/2020 2109
Carbazole
ND
80
77
1
96
1.1
30-130
40
03/04/2020 2109
bis (2-Chloro-1-methylethyl) ether
ND
80
80
1
100
0.90
30-130
40
03/04/2020 2109
4-Chloro-3-methyl phenol
ND
80
81
1
102
1.9
30-123
40
03/04/2020 2109
4-Chloroaniline
ND
80
58
1
72
0.31
10-130
40
03/04/2020 2109
bis(2-Chloroethoxy)methane
ND
80
68
1
85
5.1
30-130
40
03/04/2020 2109
bis(2-Chloroethyl)ether
ND
80
78
1
98
0.84
30-130
40
03/04/2020 2109
2-Chloronaphthalene
ND
80
68
1
85
1.1
30-130
40
03/04/2020 2109
2-Chlorophenol
ND
80
78
1
98
2.0
30-130
40
03/04/2020 2109
4-Chlorophenyl phenyl ether
ND
80
65
1
81
0.23
30-121
40
03/04/2020 2109
Chrysene
ND
80
74
1
93
0.39
30-130
40
03/04/2020 2109
Dibenzo(a,h)anthracene
ND
80
77
1
96
2.8
30-130
40
03/04/2020 2109
Dibenzofuran
ND
80
66
1
82
1.0
30-118
40
03/04/2020 2109
3,3'-Dichlorobenzidine
ND
80
44
1
56
9.7
10-126
40
03/04/2020 2109
2,4-Dichlorophenol
ND
80
72
1
91
2.6
30-121
40
03/04/2020 2109
Diethylphthalate
ND
80
76
1
94
3.6
40-125
40
03/04/2020 2109
Dimethyl phthalate
ND
80
74
1
92
2.0
40-127
40
03/04/2020 2109
2,4-Dimethyl phenol
ND
80
81
1
101
6.1
20-125
40
03/04/2020 2109
Di-n-butyl phthalate
ND
80
76
1
95
2.4
40-127
40
03/04/2020 2109
4,6-Dinitro-2-methyl phenol
ND
80
100
N 1
131
0.058
30-130
40
03/04/2020 2109
2,4-Dinitrophenol
ND
160
220
N 1
139
2.9
30-130
40
03/04/2020 2109
2,4-Dinitrotoluene
ND
80
85
1
106
0.66
30-130
40
03/04/2020 2109
2,6-Dinitrotoluene
ND
80
84
1
105
5.2
30-130
40
03/04/2020 2109
Di-n-octylphthalate
ND
80
74
1
93
2.9
30-130
40
03/04/2020 2109
bis(2-Ethylhexyl)phthalate
ND
80
80
1
100
3.6
70-131
40
03/04/2020 2109
Fluoranthene
ND
80
69
1
86
1.3
40-128
40
03/04/2020 2109
Fluorene
ND
80
68
1
85
3.6
30-124
40
03/04/2020 2109
Hexachlorobenzene
ND
80
78
1
98
1.7
30-125
40
03/04/2020 2109
Hexachlorobutadiene
ND
80
69
1
86
8.8
24-110
40
03/04/2020 2109
Hexachlorocyclopentadiene
ND
400
300
1
74
9.7
22-122
40
03/04/2020 2109
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: VB26118
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 102 of 131

Semivolatile Organic Compounds by GC/MS - MSD
Sample ID: VB26118-006MD
Matrix: Aqueous
Batch:46578
Prep Method:
3520C
Analytical Method: 8270E
Prep Date: 03/02/2020 1316
Sample
Spike
Amount
Amount
Result
% Rec
% RPD
Parameter
(ug/L)
(ug/L)
(ug/L)
Q Dil
% Rec % RPD
Limit
Limit
Analysis Date
Hexachloroethane
ND
80
78
1
98
3.8
30-130
40
03/04/2020 2109
Indeno(1,2,3-c,d)pyrene
ND
80
73
1
91
3.7
30-130
40
03/04/2020 2109
Isophorone
ND
80
72
1
90
3.1
30-130
40
03/04/2020 2109
2-Methyl naphthalene
ND
80
66
1
83
5.5
40-132
40
03/04/2020 2109
2-Methylphenol
ND
80
80
1
100
0.49
30-130
40
03/04/2020 2109
3+4-Methyl phenol
ND
80
80
1
100
2.8
30-130
40
03/04/2020 2109
Naphthalene
ND
80
65
1
82
5.8
30-130
40
03/04/2020 2109
2-Nitroaniline
ND
80
79
1
98
0.58
30-130
40
03/04/2020 2109
3-Nitroaniline
ND
80
54
1
67
3.2
30-130
40
03/04/2020 2109
4-Nitroaniline
ND
80
78
1
97
7.0
30-135
40
03/04/2020 2109
Nitrobenzene
ND
80
84
1
105
6.0
30-130
40
03/04/2020 2109
2-Nitrophenol
ND
80
91
1
113
3.1
30-130
40
03/04/2020 2109
4-Nitrophenol
ND
160
170
1
107
2.8
30-130
40
03/04/2020 2109
N-Nitrosodi-n-propylamine
ND
80
84
1
105
1.4
30-130
40
03/04/2020 2109
N-Nitrosodiphenylamine (Diphenylamine)
ND
80
74
1
93
4.4
30-123
40
03/04/2020 2109
Pentachlorophenol
ND
160
170
1
108
2.9
30-130
40
03/04/2020 2109
Phenanthrene
ND
80
68
1
85
1.6
40-123
40
03/04/2020 2109
Phenol
ND
80
78
1
97
1.5
30-130
40
03/04/2020 2109
Pyrene
ND
80
74
1
92
2.6
40-126
40
03/04/2020 2109
2,4,5-Trichlorophenol
ND
80
74
1
93
0.99
30-123
40
03/04/2020 2109
2,4,6-Trichlorophenol
ND
80
79
1
99
0.055
30-130
40
03/04/2020 2109
Surrogate Q % Rec Acceptance
Limit
2-Fluorobiphenyl
87
37-129
2-Fluorophenol
85
24-127
Nitrobenzene-d5
108
38-127
Phenol-d5
93
28-128
Terphenyl-d 14
104
10-148
2,4,6-Tribromophenol
120
35-144
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: VB26118
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 103 of 131

MADEP EPH (aliphatics) - Unfractionated - MB
Sample ID: VQ46298-001 Matrix: Aqueous
Batch:46298 Prep Method: MADEP-EPH-04
Analytical Method: MADEP-EPH-04 Prep Date: 02/27/2020 1528
Parameter Result Q Dil LOQ DL Units Analysis Date
C19 - C36 Aliphatics - Unfractionated ND 1 100 100 ug/L 03/03/2020 1801
C9 - C18 Aliphatics - Unfractionated ND 1 100 100 ug/L 03/03/2020 1801
Surrogate
Acceptance
Q % Rec Limit
1-Chloro-octadecane (aliphatic) - Unfractionated 91 40-140
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: VB26118
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 104 of 131

MADEP EPH (aliphatics) - Unfractionated - LCS
Sample ID: VQ46298-002
Matrix: Aqueous
Batch:46298
Prep Method: MADEP-EPH-04
Analytical Method: MADEP-EPH-04
Prep Date: 02/27/2020 1528
Spike
Amount
Result
% Rec
Parameter
(ug/L)
(ug/L)
Q Dil % Rec
Limit Analysis Date
C19 - C36 Aliphatics - Unfractionated
900
930
1 103
40-140 03/03/2020 1831
C9 - C18 Aliphatics - Unfractionated
650
530
1 81
40-140 03/03/2020 1831
Surrogate
Acceptance
Q % Rec Limit
1-Chloro-octadecane (aliphatic) - Unfractionated 92 40-140
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: VB26118
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 105 of 131

MADEP EPH (aliphatics) - Unfractionated - LCSD
Sample ID: VQ46298-003
Matrix: Aqueous
Batch:46298
Prep Method: MADEP-EPH-04
Analytical Method: MADEP-EPH-04
Prep Date: 02/27/2020 1528
Spike
Amount
Result
% Rec
% RPD
Parameter
(ug/L)
(ug/L) Q
Dil % Rec % RPD Limit
Limit Analysis Date
C19 - C36 Aliphatics - Unfractionated
900
940
1 104 0.96 40-140
25 03/03/2020 1901
C9 - C18 Aliphatics - Unfractionated
650
530
1 81 0.13 40-140
25 03/03/2020 1901
Surrogate
Acceptance
Q % Rec Limit
1-Chloro-octadecane (aliphatic) - Unfractionated 88 40-140
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: VB26118
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 106 of 131

MADEP EPH (aromatics) - Unfractionated - MB
Sample ID: VQ46299-001 Matrix: Aqueous
Batch:46299 Prep Method: MADEP-EPH-04
Analytical Method: MADEP-EPH-04 Prep Date: 02/27/2020 1528
Parameter Result Q Dil LOQ DL Units Analysis Date
C11 - C22 Aromatics - Unfractionated ND 1 100 100 ug/L 03/03/2020 1801
Surrogate Q % Rec Ac L mt tnce
o - Terphenyl (aromatic) - Unfractionated
65
40-140
2-Fluorobiphenyl (fractionation 1)
75
40-140
2-Bromonaphthalene (fractionation 2)
78
40-140
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: VB26118
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 107 of 131

MADEP EPH (aromatics) - Unfractionated - LCS
Sample ID: VQ46299-002
Matrix: Aqueous
Batch:46299
Prep Method: MADEP-EPH-04
Analytical Method: MADEP-EPH-04
Prep Date: 02/27/2020 1528
Spike
Amount
Result
% Rec
Parameter
(ug/L)
(ug/L) Q
Dil % Rec Limit Analysis Date
C11 - C22 Aromatics - Unfractionated
1400
900
1 64 40-140 03/03/2020 1831
Surrogate
Q % Rec
Acceptance
Limit
o - Terphenyl (aromatic) - Unfractionated
68
40-140
2-Fluorobiphenyl (fractionation 1)
78
40-140
2-Bromonaphthalene (fractionation 2)
80
40-140
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: VB26118
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 108 of 131

MADEP EPH (aromatics) - Unfractionated - LCSD
Sample ID: VQ46299-003 Matrix: Aqueous
Batch:46299 Prep Method: MADEP-EPH-04
Analytical Method: MADEP-EPH-04 Prep Date: 02/27/2020 1528
Spike
Amount Result % Rec % RPD
Parameter (ug/L) (ug/L) Q Dil % Rec % RPD Limit Limit Analysis Date
C11 - C22 Aromatics - Unfractionated 1400 910 1 65 1.1 40-140 25 03/03/2020 1901
Acceptance
Surrogate Q % Rec Limit
o - Terphenyl (aromatic) - Unfractionated
69
40-140
2-Fluorobiphenyl (fractionation 1)
77
40-140
2-Bromonaphthalene (fractionation 2)
79
40-140
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: VB26118
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 109 of 131

MADEP EPH (aliphatics) - MB
Sample ID: VQ46910-001 Matrix: Aqueous
Batch:46910 Prep Method: MADEP-EPH-04
Analytical Method: MADEP-EPH-04 Prep Date: 02/27/2020 1528
Parameter Result Q Dil LOQ DL Units Analysis Date
C9 - C18 Aliphatics ND 1 100 100 ug/L 03/09/2020 1215
C19 - C36 Aliphatics ND 1 100 100 ug/L 03/09/2020 1215
Surrogate
Acceptance
Q % Rec Limit
1-Chloro-octadecane (aliphatic) 68 40-140
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: VB26118
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 110 of 131

MADEP EPH (aliphatics) - LCS
Sample ID: VQ46910-002
Matrix: Aqueous
Batch:46910
Prep Method: MADEP-EPH-04
Analytical Method: MADEP-EPH-04
Prep Date: 02/27/2020 1528
Spike
Amount
Result
% Rec
Parameter
(ug/L)
(ug/L)
Q Dil % Rec
Limit Analysis Date
C9 - C18 Aliphatics
300
190
1 64
40-140 03/09/2020 1245
C19 - C36 Aliphatics
400
340
1 84
40-140 03/09/2020 1245
Surrogate
Acceptance
Q % Rec Limit
1-Chloro-octadecane (aliphatic) 76 40-140
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: VB26118
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page I I I of 131

MADEP EPH (aliphatics) - LCSD
Sample ID: VQ46910-003
Matrix: Aqueous
Batch:46910
Prep Method: MADEP-EPH-04
Analytical Method: MADEP-EPH-04
Prep Date: 02/27/2020 1528
Spike
Amount
Result
% Rec
% RPD
Parameter
(ug/L)
(ug/L) Q
Dil % Rec % RPD Limit
Limit Analysis Date
C9 - C18 Aliphatics
300
190
1 64 0.54 40-140
25 03/09/2020 1315
C19 - C36 Aliphatics
400
340
1 85 0.94 40-140
25 03/09/2020 1315
Surrogate
Acceptance
Q % Rec Limit
1-Chloro-octadecane (aliphatic) 75 40-140
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: VB26118
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 112 of 131

MADEP EPH (aromatics) - MB
Sample ID: VQ46911-001 Matrix: Aqueous
Batch:46911 Prep Method: MADEP-EPH-04
Analytical Method: MADEP-EPH-04 Prep Date: 02/27/2020 1528
Parameter Result Q Dil LOQ DL Units Analysis Date
C11 - C22 Aromatics ND 1 100 100 ug/L 03/09/2020 1515
Surrogate Q % Rec Ac L mt tnce
o - Terphenyl (aromatic) 65 40-140
2-Fluorobiphenyl (fractionation 1) 69 40-140
2-Bromonaphthalene (fractionation 2) 69 40-140
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: VB26118
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 113 of 131

MADEP EPH (aromatics) - LCS
Sample ID: VQ46911-002
Matrix: Aqueous
Batch:46911
Prep Method: MADEP-EPH-04
Analytical Method: MADEP-EPH-04
Prep Date: 02/27/2020 1528
Spike
Amount
Result
% Rec
Parameter
(ug/L)
(ug/L) Q
Dil % Rec Limit Analysis Date
C11 - C22 Aromatics
850
400
1 48 40-140 03/09/2020 1617
Surrogate
Q % Rec
Acceptance
Limit
o - Terphenyl (aromatic) 51 40-140
2-Fluorobiphenyl (fractionation 1) 50 40-140
2-Bromonaphthalene (fractionation 2) 47 40-140
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: VB26118
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 114 of 131

MADEP EPH (aromatics) - LCSD
Sample ID: VQ46911-003
Matrix: Aqueous
Batch:46911
Prep Method: MADEP-EPH-04
Analytical Method: MADEP-EPH-04
Prep Date: 02/27/2020 1528
Spike
Amount
Result
% Rec % RPD
Parameter
(ug/L)
(ug/L) Q
Dil % Rec % RPD Limit Limit Analysis Date
C11 - C22 Aromatics
850
570 +
1 67 34 40-140 25 03/09/2020 1647
Surrogate
Q % Rec
Acceptance
Limit
o - Terphenyl (aromatic) 72 40-140
2-Fluorobiphenyl (fractionation 1) 73 40-140
2-Bromonaphthalene (fractionation 2) 74 40-140
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: VB26118
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 115 of 131

MADEP VPH (aliphatics) - MB
Sample ID: VQ46799-001 Matrix: Aqueous
Batch:46799 Prep Method: VPH
Analytical Method: MADEP-VPH-18-2.1
Parameter
Result
Q Dil
LOQ DL Units Analysis Date
C5 - C8 Aliphatics
ND
1
75 15 ug/L 03/03/2020 2210
C9 - C12 Aliphatics
ND
1
75 15 ug/L 03/03/2020 2210
Surrogate
Q % Rec
Acceptance
Limit
2,5-Dibromotoluene (FID) 96 70-130
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: VB26118
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 116 of 131

MADEP VPH (aliphatics) - LCS
Sample ID: VQ46799-002
Matrix: Aqueous
Batch:46799
Prep Method: VPH
Analytical Method: MADEP-VPH-18-2.1
Spike
Amount
Result
% Rec
Parameter (ug/L)
(ug/L) Q
Dil % Rec
Limit Analysis Date
C5 - C8 Aliphatics 150
120
1 81
70-130 03/03/2020 2053
C9 - C12 Aliphatics 180
160
1 90
70-130 03/03/2020 2053
Surrogate Q % Rec
Ac L mt tnce
2,5-Dibromotoluene (FID) 98 70-130
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: VB26118
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 117 of 131

MADEP VPH (aliphatics) - LCSD
Sample ID: VQ46799-003
Matrix: Aqueous
Batch:46799
Prep Method: VPH
Analytical Method: MADEP-VPH-18-2.1
Spike
Amount
Result
% Rec
% RPD
Parameter (ug/L)
(ug/L) Q
Dil % Rec % RPD
Limit
Limit Analysis Date
C5 - C8 Aliphatics 150
130
1 84 4.0
70-130
25 03/03/2020 2141
C9 - C12 Aliphatics 180
160
1 93 2.8
70-130
25 03/03/2020 2141
Surrogate
2,5-Dibromotoluene (FID)
Acceptance
Q % Rec Limit
99 70-130
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: VB26118
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 118 of 131

MADEP VPH (aromatics) - MB
Sample ID: VQ46800-001 Matrix: Aqueous
Batch:46800 Prep Method: VPH
Analytical Method: MADEP-VPH-18-2.1
Parameter Result Q Dil LOQ DL Units Analysis Date
C9 - C10 Aromatics ND 1 25 5.0 ug/L 03/03/2020 2210
Surrogate
2,5-Dibromotoluene (PID)
Acceptance
Q % Rec Limit
96 70-130
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: VB26118
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 119 of 131

MADEP VPH (aromatics) - LCS
Sample ID: VQ46800-002 Matrix: Aqueous
Batch:46800 Prep Method: VPH
Analytical Method: MADEP-VPH-18-2.1
Spike
Amount Result % Rec
Parameter (ug/L) (ug/L) Q Dil % Rec Limit Analysis Date
C9 - C10 Aromatics 25 23 1 90 70-130 03/03/2020 2053
Acceptance
Surrogate Q % Rec Limit
2,5-Dibromotoluene (PID) 98 70-130
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: VB26118
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 120 of 131

MADEP VPH (aromatics) - LCSD
Sample ID: VQ46800-003 Matrix: Aqueous
Batch:46800 Prep Method: VPH
Analytical Method: MADEP-VPH-18-2.1
Spike
Amount Result % Rec % RPD
Parameter (ug/L) (ug/L) Q Dil % Rec % RPD Limit Limit Analysis Date
C9 - C10 Aromatics 25 24 1 96 6.5 70-130 25 03/03/2020 2141
Surrogate
2,5-Dibromotoluene (PID)
Acceptance
Q % Rec Limit
100 70-130
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: VB26118
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 121 of 131

MADEP VPH (aliphatics) - MB
Sample ID: VQ46929-001 Matrix: Aqueous
Batch:46929 Prep Method: VPH
Analytical Method: MADEP-VPH-18-2.1
Parameter
Result
Q Dil
LOQ DL Units Analysis Date
C5 - C8 Aliphatics
ND
1
75 15 ug/L 03/04/2020 1337
C9 - C12 Aliphatics
ND
1
75 15 ug/L 03/04/2020 1337
Surrogate
Q % Rec
Acceptance
Limit
2,5-Dibromotoluene (FID) 98 70-130
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: VB26118
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 122 of 131

MADEP VPH (aliphatics) - LCS
Sample ID: VQ46929-002
Matrix: Aqueous
Batch:46929
Prep Method: VPH
Analytical Method: MADEP-VPH-18-2.1
Spike
Amount
Result
% Rec
Parameter (ug/L)
(ug/L) Q
Dil % Rec
Limit Analysis Date
C5 - C8 Aliphatics 150
120
1 77
70-130 03/04/2020 1240
C9 - C12 Aliphatics 180
150
1 83
70-130 03/04/2020 1240
Surrogate Q % Rec
Ac L mt tnce
2,5-Dibromotoluene (FID) 87 70-130
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: VB26118
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 123 of 131

MADEP VPH (aliphatics) - LCSD
Sample ID: VQ46929-003
Matrix: Aqueous
Batch:46929
Prep Method: VPH
Analytical Method: MADEP-VPH-18-2.1
Spike
Amount
Result
% Rec
% RPD
Parameter (ug/L)
(ug/L) Q
Dil % Rec % RPD
Limit
Limit Analysis Date
C5 - C8 Aliphatics 150
120
1 83 6.7
70-130
25 03/04/2020 1308
C9 - C12 Aliphatics 180
160
1 92 9.6
70-130
25 03/04/2020 1308
Surrogate
2,5-Dibromotoluene (FID)
Acceptance
Q % Rec Limit
94 70-130
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: VB26118
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 124 of 131

MADEP VPH (aromatics) - MB
Sample ID: VQ46930-001 Matrix: Aqueous
Batch:46930 Prep Method: VPH
Analytical Method: MADEP-VPH-18-2.1
Parameter Result Q Dil LOQ DL Units Analysis Date
C9 - C10 Aromatics ND 1 25 5.0 ug/L 03/04/2020 1337
Surrogate
2,5-Dibromotoluene (PID)
Acceptance
Q % Rec Limit
96 70-130
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: VB26118
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 125 of 131

MADEP VPH (aromatics) - LCS
Sample ID: VQ46930-002 Matrix: Aqueous
Batch:46930 Prep Method: VPH
Analytical Method: MADEP-VPH-18-2.1
Spike
Amount Result % Rec
Parameter (ug/L) (ug/L) Q Dil % Rec Limit Analysis Date
C9 - C10 Aromatics 25 21 1 84 70-130 03/04/2020 1240
Acceptance
Surrogate Q % Rec Limit
2,5-Dibromotoluene (PID) 86 70-130
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: VB26118
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 126 of 131

MADEP VPH (aromatics) - LCSD
Sample ID: VQ46930-003 Matrix: Aqueous
Batch:46930 Prep Method: VPH
Analytical Method: MADEP-VPH-18-2.1
Spike
Amount Result % Rec % RPD
Parameter (ug/L) (ug/L) Q Dil % Rec % RPD Limit Limit Analysis Date
C9 - C10 Aromatics 25 23 1 93 10 70-130 25 03/04/2020 1308
Surrogate
2,5-Dibromotoluene (PID)
Acceptance
Q % Rec Limit
92 70-130
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: VB26118
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 127 of 131

Chain of Custody
and
Miscellaneous Documents
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 128 of 131

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Page 129 of 131

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Page 130 of 131

PACE ANALYTICAL SERVICES, LLC
R'n:aly F.nsirrmr5-n•nl frnin =, Tnr.
DQCUmerrt"huhbc*:MCi C-14
Sample Receipt Checklist (RQ
C lion[: '1 I:I2RA('ON ('CYN� (.1.T C nnlcr Inspected b-ldatc: 1T:n 0122 r"'O tl t {: 73265I 18
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O ig[nal tmnperature upon Nccipr r' Dcrivcd (C;orrcctcd) renlperanur upon receipt %Solid Snap -Cup I17=
1-6 r 1.6 cc 2.0 i 2.0 oC 2-1 i 2.1 'C NA ..NA -
N4,7*3d; ®l :ropy 'anlrr k laullc ❑ gausst Liartics IK Gura lil; 6 1& Ciim Correction Facwr: 0
h1.. od of coolant- ® Wet ice ❑ Ice flacks ❑ Dn' lce ❑ None
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PM wm,1* gd face] by-. phone r' .~[nail"facc-to-fke (circle olte).
❑ Ytvs
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U1 NA
4. 15 tho couunercial cauri;`r's pati,ki.ug slip attacked t0 fl)i3 rorill?
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5- Were jropeTcustody proceduras (relinquishuecVitceived) 16I1rmed?
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6. Wcr:. saMiN1: IDS listod all the coc :'
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7, Wcrc sampl r IDs 1 Lsmd out all sample contsi.se n?
Yes
Cl No
U. Was wl.lcc ion date & tine listed on t1w CO ?
® Yes
❑ No
�), Was oalkct�ion date & timo listed on all sample conminm?
® ;Yes
❑ No
10. l )id a li CAntain w labs-i it biuliation (LID, date, tune i agme wifli tlLe COS.?
® Yes
❑ No
1 1. 'iVcrti texts tv bc: prrfrnin cd listcc ou the COC" 1
m �'rS
El 'No
I �. Did rill wrnpl4s Eurivu in the proper cunilaincrs far each tear and -lea: in good condition
(unbn)k4n, 1id4oa, L:W.)? . .
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❑ Nol
13- Was adequaLe ,ample Yo1,7rn6 availahlc?
Yes;
❑ No
14. Vd Pill sarrtlr,les teenived wiLhin :t 1h )bcx ling titnc ar A& hours, whiahevar comas fu'st?
1'eS
❑ No
1 5. W'� also' Sam le%colitailleA unc) sti imples NfFt'istcd au COC''?
❑ Yr.
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❑ Ti A
16 -FoT VOA wid RSK-175 3ampies: were h]ubbjeS preipElE ?"pe3-Si1 " (!,• "cir 61nrn in diwnul-L'-)
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in any of the V UA vial s't
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❑ Yes
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❑ Yes
❑ No
®TtiA
11). 1kl= Ell applicable NH;.e'1KKNrcyanid;:pheno1l625 (<0.5iTiAX) samples Free nfrexidual
chlorine'!
20. 1> ue chenr rem-Luk3/mquests (i.e. l+equested dilu.LiMis, MSeVM clusignaLiom, tlu,,,)
comcctlytrausudbed 6Dm the C OC into the cornmenl:sactinn its T,IMq?
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21. Was dta quoie nw'nher iicu, cd (in the container label" TF acs: Q130W.;6. CIA
•ample Preservation i.lrlust be colupicted tar ally sample(s) incorrectly preserved or with headspa-:r.)
alllplt s� ETA wcLrc rwcivL'd incorrcutly prw.crvz:d and ivzrc adjustcd a-ccordingl,L'
in sartiple w6virlg wish NA mL of circle anc; H2S0,I, M1 03, ICI, NaOH using SH � NA
Time ol'rrcticrval.icm NPL Tf more tlian m is prescrvadvc is needed, please note in the comnienis below.
6�arllpJC(S) NA were nourivexl with biibblrs :-6 mm hi diamrv,.r,
5umpie s(;) NA ware rQccM:J with UHC x 0.5 mgl (if O] S is no) and vvcre
udju4Lr..al tu:voraingly in smnpiu rccviving w ith sodium thiosulfatC Shealy I D, NA
SR hancode Iahelsappliedby, .ISH True= 02i2k;'20ZO
CommenTe'(]TI TH"', calel"Wi -tr:r-1
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 131 of 131

APPENDIX B
Historical Groundwater Analysis Tables

TABLE 4
GEOCHEMICAL ANALYSES OF GROUNDWATER SAMPLING
NO EMBER 1 41996
Sample
Lareation
Sample
Date
All Compounds
610 list by Method 625
u
Diesel Range Organics
by Method 35101
m Oj
M -6
Nut sa.m led - 1.5" of free prcduct observed on 11/14196,
MW-7
11}14196
<50
630
MW-&
[1/14196
<50
10.9
MW-9
11/14/96
<50
300
MW-10
11/14/96
<50
not anal d
TABLES
GEOGHENIICAL ANALYSTS OF GROUNDWATER SAMPLING
NOVEMBER 22, 1996
Sample
Location
Sample
Date
Method 602
u
Diet 625
u
W-2
1112219b
MTBE: 60
B L <10
-3
11122/96
8 L <1
13 2L <1 D
W-4
11122J96
benzene: 2.3
MTBE. 5.1
BQL (<10)
M -5
11 /22196
B L <1
B L S10
MW-6
11/22196
ethylben ene; 50
toluene: 57
x lenes: 412
anthracene: 145
fluorene. 103
hthalene: 197
11/22/96
B 1a <l
B L <I0
TP-3
1112.2/96
B L < 1 02
1 B L <10
Data from the January 24, 1997 Comprehensive Site Assessment prepared by Engineering
Consulting Services, Ltd.

Beverly, Trudy
From: Beverly, Trudy
Sent: Tuesday, March 31, 2020 3:12 PM
To: DSouza, Flora J
Cc: Corbitt, Chris L.
Subject: RE: [External] Mt. Pleasant DOT Report
Received. Thanks!
Trudy
Trudy Beverly, L.G.
Hydrogeologist, Division of Waste Management
North Carolina Department of Environmental Quality
n 10 �� � UST Section, Mooresville Regional Office
704.235.2182 (Office)
Trudy. B everlykncdenr. gov
Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties.
Office Mailing Address:
610 East Center Avenue, Suite 301
Mooresville, NC 28115
Branch's Underground Storage Tanks Website Address: https://deg.nc.gov/about/divisions/waste-management/ust
Branch's Above Ground Storage Tanks Website Address: hit2s://deq.nc.gov/about/divisions/waste-management/ust/ast-pro2Tam
INTERACTIVE MAPS WITH DWM SITES AND PERMITTED FACILITIES:
hops://deq.nc.gov/about/divisions/waste-management/waste-management-rules-data/waste-mana eg ment ig s=mats
File Review Procedures:
hops://deq.ne. gov/about/divisions/waste-management/ust/file-review-procedures#mooresville-regional-office
ONLINE ACCESS TO UST SECTION DOCUMENTS (Laserfiche):
fts://deq.nc.gov/about/divisions/waste-manaizement/laserfiche
Document Submittal & UST File Names for Laserfiche Policies:
htti)s:Hfiles.ne.izov/nedeafWaste%2OMana2ement/DWM/UST[WhatsNew/Final-Electronic-Document-Submittal-Policv.l)df
htips:Hfiles.nc.gov/ncdeq/Waste%20Management/D WM/UST/Corrective%2OAction/UST%2Ofile%20names%20for%2OLaserfiche.docx
From: DSouza, Flora J [mailto:[e-mail]]
Sent: Tuesday, March 31, 2020 2:39 PM
To: Beverly, Trudy <[e-mail]>
Cc: Corbitt, Chris L. <[e-mail]>
Subject: RE: [External] Mt. Pleasant DOT Report
�� External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to
[e-mail]
Trudy,
I emailed the report to you. I'm going to have to ask our IT department to put filezilla on my computer, so I'll be able to
download them in the future.
Thank you,
Flora
From: Beverly, Trudy <[e-mail]>
Sent: Tuesday, March 31, 2020 2:22 PM
To: DSouza, Flora J <[e-mail]>

Cc: Corbitt, Chris L. <[e-mail]>
Subject: RE: [External] Mt. Pleasant DOT Report
I'm okay with you doing email only to me for Cabarrus County Sites. —Just make sure that you get an email back from
me saying "received" for confirmation. Keep in mind that other project managers may enforce the new policy.
Trudy
From: Beverly, Trudy
Sent: Tuesday, March 31, 2020 2:04 PM
To: DSouza, Flora J <[e-mail]>
Cc: Corbitt, Chris L. <[e-mail]>
Subject: RE: [External] Mt. Pleasant DOT Report
Hey Flora,
We have had a change in document submittals as of last Friday. I will forward you the notice in a separate email. They
may have missed some consultants. It is my current understanding that the UST Section no longer requires a paper copy
as of last Friday. The electronic copy can be posted to FileZilla. The project manager should also be notified via email
that a file is on FileZilla for review. The file can also be attached to the email to the project manager notifying them that
a file has been posted to FileZilla. Our mailing system can handle most file sizes. It is rare to have a file that we cannot
receive via email due to its size. The file can also be placed on a cd and mailed with a cover letter the appropriate
regional office if you don't want to use FileZilla. I suggest that you also email an electronic copy of the file whether you
choose to post to FileZilla or mail a copy on cd with cover letter. Make sure that the electronic reports are signed/sealed
and contain all tables, figures, and lab reports. This is all a new procedure. There is much discussion among staff over
potential problems. It may or may not change in the future.
Hope this helps,
Trudy
Trudy Beverly, L.G.
Hydrogeologist, Division of Waste Management
North Carolina Department of Environmental Quality
ftr UST Section, Mooresville Regional Office
704.235.2182 (Office)
Trudy. B everlykncdenr. gov
Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties.
Office Mailing Address:
610 East Center Avenue, Suite 301
Mooresville, NC 28115
Branch's Underground Storage Tanks Website Address: https:Hdeq.nc.gov/about/divisions/waste-management/ust
Branch's Above Ground Storage Tanks Website Address: https://deq.nc.gov/about/divisions/waste-management/ust/ast-program
INTERACTIVE MAPS WITH DWM SITES AND PERMITTED FACILITIES:
hops://deq.nc.gov/about/divisions/waste-management/waste-management-rules-data/waste-management-gis-maps
File Review Procedures:
https://deq.nc. gov/about/divisions/waste-management/ust/file-review-procedures#mooresville-regional-office
ONLINE ACCESS TO UST SECTION DOCUMENTS (Laserfiche):
https://deq.nc. gov/about/divisions/waste-management/laserfiche
Document Submittal & UST File Names for Laserfiche Policies:
https://files.nc.gov/ncdecl/W aste%20Management[DWM/UST/WhatsNew/Final-Electronic-Document-Submittal-Policy.pdf
https://files.nc.gov/ncdeq/Waste%2OManagement/DWM/UST/Corrective`/`2OAction/UST%20filc%20names%2Ofor%2OLascrfiche.doex
From: DSouza, Flora J[mailto:[e-mail]]
Sent: Tuesday, March 31, 2020 1:44 PM
To: Beverly, Trudy <[e-mail]>
Subject: [External] Mt. Pleasant DOT Report
N

External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to
[e-mail]
Trudy,
We have completed the Mt. Pleasant DOT report. I am waiting for Chris Corbitt to sign and seal it. Things are a little
more interesting now that we are all working from home and we can't walk over to the person's office to get a
signature. Once it is signed, I'll email a copy to you and ask Camille in our office to print off a copy and put it in the mail
w/the CD. We have only a few people working in the office. Our receptionist, a few in administrative roles, our soils lab
staff, and a few others that need to be in the office to work due to poor internet at home, using programs that are too
slow using them remotely, etc. It's definitely a bare minimum. One employee said it's like being at work after 5:00 pm
on a Friday.
I received an email from Scott Ryals last week about reports needing to be uploaded to the FTP site. Do I need to put this
report on the FTP site? I'll have to figure out how to do it first, but I'm sure it can be done if needed.
Thank you and I hope you are staying safe and healthy.
Flora J. D'Souza, CHMM
Senior Scientist I Environmental
Terracon
2701 Westport Road I Charlotte, North Carolina 28208
P (704) 509-17771 F (704) 509-18881 M [phone]
Direct [phone]
Flora. Dsouza(dterracon.com I terracon.com fterracon.coml
Terracon provides environmental, facilities, geotechnical, and materials consulting engineering services delivered with
responsiveness, resourcefulness, and reliability.
Private and confidential as detailed here Aww.terracon.com/disclaimer). If you cannot access the hyperlink, please e-mail
sender.