22034_Fairey Finishing Plant LSI Piedmont Metal_2019-09-25

Limited Site Investigation
Piedmont Metalworks Building
1551 Cooper Street
Durham, Durham County, North Carolina
Terracon Project No. 70197536
September 25, 2019
Prepared for:
Durham Technical Community College
Durham, North Carolina
Prepared by:
Terracon Consultants, Inc.
Raleigh, North Carolina

September 25, 2019
Durham Technical Community College
1637 E. Lawson Street
Durham, North Carolina 27703-5023
Attn: Mr. Marshall Fuller
P: [phone]
E: [e-mail]
Re: Limited Site Investigation
Piedmont Metalworks Building
1551 Cooper Street
Durham, Durham County, North Carolina
Terracon Project No. 70197536
Dear Mr. Fuller:
Irerracon
Terracon Consultants, Inc. (Terracon) is pleased to submit this Limited Site Investigation for the
above referenced site. This assessment was performed in accordance with Terracon's Proposal
P70197536, dated August 28, 2019.
Terracon appreciates the opportunity to provide these services. If you have any questions
concerning this report or need additional information, please contact us at 919-873-2211.
Sincerely,
Irerracon
T091-
TICKAnalee . Farrell, El
Staff Environmental Engineer
Attachments
M. h B. Dail, PG
Senior Geologist
Terracon Consultants, Inc. 2401 Brentwood Road Raleigh, NC 27604
P [919] 873 2211 F [919] 873 9555 terracon. corn NC License: F-0869

Irerracon
TABLE OF CONTENTS
1.0 INTRODUCTION..................................................................................................................1
1.1 Site Description and History.............................................................................1
1.2 Standard of Care................................................................................................2
1.3 Additional Scope Limitations............................................................................2
1.4 Reliance..............................................................................................................2
2.0 FIELD INVESTIGATION METHODS...................................................................................3
2.1 Utility Clearance.................................................................................................3
2.2 Soil Investigation...............................................................................................3
2.3 Sub -Slab Soil Vapor Installation & Sampling...................................................4
2.4 Investigation Derived Waste.............................................................................5
3.0 FIELD INVESTIGATION RESULTS....................................................................................5
3.1 Soil Analytical Results.......................................................................................5
3.2 Soil Vapor Analytical Results............................................................................5
4.0 SUMMARY...........................................................................................................................6
5.0 RECOMMENDATIONS........................................................................................................6
6.0 REFERENCES.....................................................................................................................7
Exhibits
Exhibit 1 — Topographic Vicinity Map
Exhibit 2 — Sample Location Map
Tables
Table 1 — Summary of Soil Analytical Results
Table 2 — Summary of Soil Vapor Analytical Results
Appendices
Appendix A— Field Forms and Soil Boring Logs
Appendix B — Laboratory Analytical Reports and Chain -of -Custody Records
Reliable Responsive Resourceful

LIMITED SITE INVESTIGATION
PIEDMONT METALWORKS BUILDING
1551 COOPER STREET
DURHAM, DURHAM COUNTY, NORTH CAROLINA
TERRACON PROJECT NO. 70197536
SEPTEMBER 25, 2019
1.0 INTRODUCTION
Terracon Consultants, Inc. (Terracon) conducted a limited site investigation (LSI) at the property
located at 1551 Cooper Street in Durham, Durham County, North Carolina (the site). The location
of the site is shown on Exhibit 1.
Terracon previously completed a Phase I Environmental Site Assessment (ESA) (Terracon
Project No. 70197484; Terracon, 2019). Terracon identified the following recognized
environmental conditions (RECs) in connection with the site:
The prior on -site photo processing operations of the former site occupant American
Photographic Service in the 1970s and 1980s;
The prior on -site photo processing and metal plating operations of the former site
occupant Intaglio Vivicolor Al Piedmont/ Piedmont Gravure Cylinder Service Inc. in the
1980s through the early 2000s;
■ The potential for historical and current releases to the interior floor drain located in the
chemical storage room area;
■ The uncontrolled sink discharge to the exterior ground surface; and,
■ The adjacent Fairey Finishing Plant Brownfields Project.
This LSI was completed to evaluate if soil or soil vapor at the site is impacted as a result of the
identified RECs.
1.1 Site Description and History
Based on Durham County property assessment data and client -provided information, the site is
located at 1551 Cooper Street in Durham, Durham County, North Carolina. The site is comprised
of an approximate 0.97-acre tract of land (Durham County Parcel ID 118849) that has been
improved with an approximately 13,520 square -foot building with paved parking lots, driveways,
and landscaping. At the time of the LSI, the on -site building was occupied by Piedmont
Metalworks LLC who provides custom metal fabrication services. The facility cuts, shapes, welds,
and assembles custom metal projects.
Based on a review of historical information, the site was cleared or wooded land from at least
1937 until southern portion of the current on -site structure was constructed in 1968. Based on city
directory and Durham County deed information, former site occupants included: American
Responsive Resourceful Reliable 1

Limited Site Investigation
Piedmont Metalworks Building LSI Durham, North Carolina Irerracon
September 25, 2019 Terracon Project No. 70197536
Photographic Service; Thiele Engdahl Inc.; Piedmont Gravure Cylinder Service Inc.; and Intaglio -
Piedmont Engraving -Printing Cylinders.
1.2 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.
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 investigation services were performed in accordance with the scope of work agreed
with you, our client, as reflected in our proposal and were not restricted by ASTM E1903-11.
1.3 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. Certain indicators of the presence of
hazardous substances, petroleum products, or other constituents may have been latent,
inaccessible, unobservable, non -detectable, or not present during these services. We cannot
represent that the site contains no hazardous substances, toxic materials, petroleum products, or
other latent conditions beyond those identified during this investigation. Subsurface conditions
may vary from those encountered at specific borings or wells or during other surveys, tests,
assessments, investigations, or exploratory services. The data, interpretations, findings, and our
recommendations are based solely upon data obtained at the time and within the scope of these
services.
Terracon understands the client intends to purchase the site and incorporate it into the Durham
Technical Community College campus. As such, the sampling locations were spaced to assess
the overall site conditions.
1.4 Reliance
This report is prepared for the exclusive use and reliance of Durham Technical Community
College. Use or reliance by any other party is prohibited without the written authorization of
Durham Technical Community College and Terracon Consultants, Inc. (Terracon).
Reliance on the LSI by the client and all authorized parties will be subject to the terms, conditions
and limitations stated in the proposal, LSI report, and Terracon's Agreement for Services. The
limitation of liability defined in the Agreement for Services is the aggregate limit of Terracon's
liability to the client and all relying parties.
Reliable Responsive Resourceful 2

Limited Site Investigation
Piedmont Metalworks Building LSI Durham, North Carolina Irerracon
September 25, 2019 ■ Terracon Project No. 70197536
2.0 FIELD INVESTIGATION METHODS
Terracon conducted field investigation activities on September 10 and 11, 2019. The site layout
and sample locations are depicted on Exhibit 2.
2.1 Utility Clearance
Prior to LSI activities, public utility locators were notified via a call to North Carolina 811. In
addition, a subcontracted private utility locator marked and located utilities in the vicinity of the
proposed sample locations.
The private utility locator was unable to trace the interior floor drain located within the chemical
storage room to the exterior of the building.
2.2 Soil Investigation
Three borings (SB-01 through SB-03) and one background soil boring (BG-01) were advanced at
the site via hand auger (Exhibit 2). Soil boring depths and characteristics including soil type,
color, moisture, and odor were observed in the field and recorded on boring logs (Appendix A).
The soils were screened in the field for the presence of organic vapors using a photoionization
detector (PID). Based on the GPR survey, the interior drain located in the chemical storage room
was traced to the northwest into the interior of the building. Since the drain was traced into the
building and not to the exterior of the building, a sample was not collected for this area, and the
soil vapor point sufficed for sampling beneath the subsurface of the building.
One soil sample was collected from each soil boring submitted to Shealy Environmental Services,
Inc for analysis of the following:
Volatile organic compounds (VOCs) via EPA Method 8260;
RCRA 8 Metals via EPA Method 6010;
Hexavalent Chromium via EPA Method 7199/218.6; and
Cyanide via EPA Method 9012B.
The background soil sample (BG-01) was not analyzed for VOCs. Soil samples were collected
directly into laboratory -provided sample containers and stored on ice pending shipment to the
subcontract laboratory. Non -dedicated sampling equipment and field instruments were
decontaminated after each sample was collected using a non -phosphate soap wash followed by
a potable water rinse.
Reliable Responsive Resourceful 3

Limited Site Investigation
Piedmont Metalworks Building LSI Durham, North Carolina Irerracon
September 25, 2019 Terracon Project No. 70197536
2.3 Sub -Slab Soil Vapor Installation & Sampling
Sub -Slab Soil Vaaor Samplina Point Installation
A total of five (5) sub -slab soil vapor sampling points were installed (Exhibit 2). The soil vapor
points were constructed in general accordance with the practices outlined in the NCDEQ Division
of Waste Management Vapor Intrusion Guidance (March 2018) and the Interstate Technology
Regulatory Council Vapor Intrusion Pathway: A Practical Guideline (January 2007). They were
constructed in boreholes advanced using a hammer drill to penetrate the floor slab. The floor slab
was approximately 8 to 12 inches thick. Each point was constructed using an assembled Vapor
Pin TM installed within the 5/8-inch diameter hole recessed in a 1.5-inch diameter hole. A pre-cut
silicone sleeve around the Vapor Pin TM was hammered into the hole to create a competent seal
with the concrete floor slab. The Vapor Pin TM was capped and the soil gas point was allowed to
equilibrate for at least two hours before sampling. The Vapor PinsTM were installed as temporary
points.
Shut -In Test
A shut-in (dead -head) test was conducted before sampling to check for leaks in the above -ground
purge/sampling manifold. A sampling train consisting of a batch certified 6-liter Summa canister
for sample collection (sample canister) connected to a critical orifice flow restrictor (flow
controller). The sampling train influent was capped, the sampling canister remained closed, and
a hand pump was used to generate a negative pressure reading of at least 15 inches of mercury
on the sampling train pressure gauge. The pressure gauge was then observed for losses in
vacuum. If there was an observable loss of vacuum, the fittings were adjusted until the vacuum
in the sample train did not noticeably dissipate.
Helium Tracer Test
A helium tracer test was conducted prior to sample collection. The tracer test serves as a quality
assurance/quality control (QA/QC) method to verify the integrity of the soil vapor point seal in addition
to the connection of the sampling manifold and the soil gas point. A field instrument capable of
measuring helium concentrations down to 25 parts per million was used to verify the presence and
concentration of helium in the sample points and/or within the sampling manifolds.
The protocol for using a tracer gas is to enclose the sampling point and the sampling manifold with
a shroud. The helium tracer gas is released into the shroud until the atmosphere inside the shroud
is approximately 10 to 20 percent helium. Approximately three purge volumes (one purge volume
being equal to the volume within the borehole through the slab and the sample tubing) were
evacuated through Teflon° -lined tubing that passes through the shroud using a hand pump. Purge
samples were screened for helium to assess for leaks in the well seal and/or sampling manifold after
removal of each well volume. The annulus is considered to be sufficiently sealed when helium
concentrations detected within the sampling point were less than ten percent of the helium
concentration in the shroud.
Reliable Responsive Resourceful 4

Limited Site Investigation
Piedmont Metalworks Building LSI Durham, North Carolina Irerracon
September 25, 2019 Terracon Project No. 70197536
Sub -Slab Soil Vapor Sample Collection
Following the helium leak test, the valve to the purge device was closed and the sample canister
valve was opened to initiate collection of soil vapor for laboratory analysis. The sample canister
was filled using a dedicated flow controller set to a sample rate of approximately 200 milliliters per
minute. The canister vacuum was recorded prior to and periodically during the filling period. At
the conclusion of the sampling event, the final canister vacuum was recorded. The canister was
packaged and delivered along with chain of custody documentation to Pace Analytical in Mt.
Juliet, Tennessee for analysis of VOCs via EPA Method TO-15.
2.4 Investigation Derived Waste
Soil cuttings and rinse water were containerized in one 5-gallon bucket and staged at the
southwest corner of the Piedmont Metalworks building on -site. Based on the analytical results,
the bucket should be disposed off -site in accordance with North Carolina Department of
Environmental Quality (NCDEQ) regulations. Terracon will assist in identifying an appropriate
disposal facility and coordinating IDW pickup.
3.0 FIELD INVESTIGATION RESULTS
The soil analytical results are summarized in Table 1 and soil vapor analytical results are
summarized in Table 2. A copy of the laboratory report is provided in Appendix B.
3.1 Soil Analytical Results
Analytical results were compared with the NCDEQ Preliminary Soil Remediation Goals (PSRGs):
Arsenic was detected above its Residential PSRG in each soil sample collected. The
concentrations also exceed the Industrial/Commercial PSRG in two samples (SB-01
and SB-02) and the background sample (BG-01).
Hexavalent chromium was detected above its Residential PSRG and below its
Industrial/Commercial PSRG in each of the samples collected.
Cyanide was not detected above the laboratory reporting limit.
VOCs were not detected above their respective PSRGs.
3.2 Soil Vapor Analytical Results
Analytical results were compared with the NCDEQ DWM Residential Vapor Intrusion Soil Gas
Screening Levels (VI-SGSLs) (NCDEQ, 2018b) and are summarized below:
VOCs were not detected above their respective Residential VI-SGSLs.
Reliable Responsive Resourceful 5

Limited Site Investigation
Piedmont Metalworks Building LSI Durham, North Carolina Irerracon
September 25, 2019 Terracon Project No. 70197536
4.0 SUMMARY AND CONCLUSIONS
Based on this investigation, Terracon provides the following conclusions:
Arsenic was detected above its Residential PSRG of 0.68 milligrams per kilograms
(mg/kg) and above its Industrial/Commercial PSRG standard of 3.0 milligrams per
kilograms (mg/kg). Arsenic concentrations are consistent with prior sampling results
collected on the site and adjacent properties and what is expected from naturally
occurring conditions based on the low magnitude of concentrations, narrow
concentration range, and frequency of detections.
Hexavalent chromium was detected above its Residential PSRG in the soil samples
collected. Terracon cannot eliminate the historical use of the property as the source of
the hexavalent chromium.
As the VOCs identified in soil vapor beneath the proposed building were detected at
concentrations below their Residential VI-SGSLs, current data indicate there is not a
vapor intrusion risk for potential on -site redevelopment.
5.0 RECOMMENDATIONS
Based on the analytical results, Terracon recommends the following:
Due to the hexavalent chromium concentrations above Residential PSRGs, the results
of this LSI should be provided to the property owner. If the property owner is made
aware of the analytical data, he/she will have a reporting obligation to NCDEQ.
Data indicates that containerized IDW should be disposed off -site in accordance with
NCDEQ regulations. Terracon can assist in identifying an appropriate disposal facility
and coordinating IDW pickup.
If Durham Technical Community College plans purchase and develop the site,
Terracon recommends either (1) applying for eligibility to the NCDEQ's Brownfields
Program prior to closing on the property or (2) developing a Media Management Plan
for management of soil during construction, which would include sampling in areas
proposed to be disturbed prior to construction activities.
Reliable Responsive Resourceful 6

Limited Site Investigation
Piedmont Metalworks Building LSI Durham, North Carolina Irerracon
September 25, 2019 ■ Terracon Project No. 70197536
6.0 REFERENCES
IRTC, 2007. Interstate Technology Regulatory Council Vapor Intrusion Pathway: A Practical
Guidance, dated January 2007.
NCDEQ, 2018a. NCDEQ Division of Waste Management Vapor Intrusion Guidance, dated March
2018.
NCDEQ, 2018b. DWM Residential Vapor Intrusion Screening Levels, dated February 2018.
Terracon, 2019. Phase I Environmental Site Assessment: Piedmont Metalworks Building, 1551
Cooper Street, Durham, Durham County, North Carolina. Terracon Project No. 70197484,
dated August 23, 2019.
Reliable Responsive Resourceful 7

EXHIBITS

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TOPOGRAPHIC MAP IMAGE COURTESY OF THE U.S. GEOLOGICAL SURVEY
QUADRANGLES INCLUDE: SOUTHWEST DURHAM, NC (1/1/2002) and SOUTHEAST DURHAM, NC (1/1/2002).
Project Manager: Project No. TOPOGRAPHIC VICINITY MAP Exhibit
ALF 701Irerracon
Drawn by: ALF Scale: 1"=2 2,00 000'
Checked by: File Namei0197536 Piedmont Metalworks Building
MBD 2401 Brentwood Rd, Ste 107 1551 Cooper Street
Approved by:MRn Date: SEP 2019 Raleigh, NC 27604.3686 Durham, North Carolina

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Uncontrolled Sink
Discharge Location
SB-03
Legend
A Sub -Slab Vapor Point Location
G Soil Boring Location
Building Footprint
Approximate Site Boundary
Durham County Parcels
PM: Project No.
ALF P70197536
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SV-03
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Scale:
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Checked By:
File Path:
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Approved By'
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9/20/2019
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DTCC�Undeveloped Property
Fairey Finishing Plant Brownfields Project
Former Allpack Assembly
(1604 EYLawson Street)
(BROWN FIELDS/LUST)
fto 25 50
Feet
Sample Location Map EXHIBIT
NO.
Limited Site Investigation
Piedmont Metalworks Building
1551 Cooper Street
Durham, North Carolina

TABLES

Table 1
Summary of Soil Analytical Results
Limited Site Investigation - Piedmont Metalworks Building
1551 Cooper Street, Durham, Durham County, North Carolina
Terracon Project No. 70197536
Sample ID:
Sample Date:
Sample Depth (ft bls):
SB-01
9/11/19
2.5-3
SB-02
9/12/19
3.5-4
SB-03
9/13/19
1.5-2
BG-01
9/11/19
2-3r
PSRGs
G
Health
Based
Res
Health
Based
Ind Com
RCRA 8 Metals (EPA Method 6010D/7471B)
& Hexavalent
Chromium
(EPA Method
7199) - (mg/kg)
Arsenic
5.6
3.0
1.9
3.4
5.8
0.68
3.0
Barium
270
140
180
95
580
3,100
47,000
Cadmium
<0.29
<0.27
0.0811
<0.28
3.0
14
200
Chromium
21
47
140
35
--
--
--
Hexavalent Chromium
0.331
1.5
3.5
0.571
3.8
0.31
6.5
Lead
15
15
13
13
270
400
800
Mercury
<0.090
<0.098
<0.086
<0.091
1.0
2.3
9.7
Selenium
<1.2
<1.1
<1.1
<1.1
2.1
78
1,200
Silver
<0.59
<0.55
<0.54
<0.57
3.4
78
1,200
Cyanide (EPA Method 9012B) - (mg/kg)
Cyanide*
1 <0.60
<0.61
<0.56
<0.58
14
3.1
31
Volatile Organic Compounds (EPA Method 8260) - (mg/kg)
Acetone
0.15
0.12
0.22
--
25
12,000
140,000
Carbon disulfide
0.00491
0.0051
<0.005
4.1
160
740
Ethylbenzene
<0.0056
<0.0048
0.00391
-
13
6.1
27
Isopropylbenzene (Cumene)
<0.0056
<0.0048
0.005
-
2.3
410
2100
Methylene chloride
0.0059
0.0051
0.00461
-
0.025
58
650
Xylenes (total)
<0.011
1 <0.0096
0.084
-
9.9
120
530
Notes:
Compounds detected in one or more soil samples are shown
Values in BOLD were detected above the method detection limit
Shaded detections exceed their applicable standard and/or screening level
RCRA - Resource Conservation and Recovery Act
PSRG - NCDEQ Inactive Hazardous Sites Branch (IHSB) Residential Health Based PSRGs (May 2019)
PoG - Protection of Groundwater
Res - Residential
Ind/Com - Industrial/Commercial
J - estimated concentration greater than the method detection limit and less than the reporting limit
*lowest PSRG for a cyanide species used
Abbreviations:
mg/kg - milligrams per kilogram
-- not analyzed or not applicable
ft bls - feet below land surface

Table 2
Summary of Soil Vapor Analytical Results
Limited Site Investigation - Piedmont Metalworks Building
1551 Cooper Street, Durham, Durham County, North Carolina
Terracon Project No. 70197536
Sample ID:
Collection Date:
SV-01
09/11/19
SV-02
1 09/11/19
SV-03
09/11/19
SV-04
09/11/19
SV-05
09/11/19
Residential
VI-SGSL
Non -Residential
VI-SGSL
Volatile Organic Compounds via EPA Method
TO-15 (µg/m3)
Acetone
16.7
53.4
17.4
8.48
113
220,000
2,700,000
Benzene
<0.639
<0.639
<0.639
<0.639
0.777
120
1,600
Carbon Disulfide
<0.622
<0.622
<0.622
<0.622
6.33
4,900
61,000
Chloroform
<0.973
<0.973
5.28
5.24
0.983
41
530
1,4-Dioxane
<0.721
1.68
<0.721
<0.721
<0.721
190
2,500
Ethanol
16
41
27.3
25.2
87.9
NE
NE
Ethylbenzene
<0.867
3.0
6.01
<0.867
<0.867
370
4,900
4-Ethyltoluene
<0.982
2.18
<0.982
<0.982
<0.982
NE
NE
Trichlorofluoromethane
1.89
7.91
3.8
27.1
4.67
NE
NE
Dichlorodifluoromethane
2.45
3.2
2.67
1.97
2.43
700
8,800
Heptane
<0.818
1.19
<0.818
<0.818
<0.818
2,800
35,000
Methylene chloride
0.756B
1.17E
<0.694
0.697E
2.39E
4,200
53,000
2-Butanone
<3.69
<3.69
<3.69
<3.69
7.59
35,000
440,000
2-Propanol
13.8
6.45
<3.07
<3.07
9.2
130,000
530,000
Tetrachloroethene
<1.36
1.48
<1.36
3.0
<1.36
280
3,500
Toluene
0.844
3.8
1.33
1.79
1.79
35,000
440,000
1,2,4-Trimethylbenzene
<0.982
4.6
<0.982
<0.982
<0.982
420
5,300
1,3,5-Trimethylbenzene
<0.982
1.67
<0.982
<0.982
<0.982
420
5,300
m&p-Xylene
<1.73
12
30.3
<1.73
<1.73
700
8,800
o-Xylene
<0.867
3.6
13.7
<0.867
<0.867
700
8,800
Notes:
Detected compounds are shown in the table.
VOC concentrations are reported in micrograms per cubic meter (µg/rn).
NCDEQ DWM - North Carolina Department of Environmental Quality Division of Waste Management.
VI-SGSL - Residential Vapor Intrusion Sub Slab and Exterior Soil Gas Screening Level (February, 2018).
NE - standard not established.
Bold concentrations indicate greater than method detection limit.
"<": indicates less than laboratory reporting limit.
B: indicates analyte detected in laboratory method blank.

APPENDIX A
FIELD FORMS AND BORING LOGS

Soil Vapor Tracer Test & Sampling
Sample ID: 5 V , p
Project No.: 70197536
Site Location: Durham, NC
Field Personnel: AF& ED
Date: 09/11 /19
Weather: SonLu CDs
Cannister Size: 6-liter
Sample Rate: <200 mUmin
Analysis: TO-15
HELIUM TRACER TEST
Irerracon
2401 Brentwood Road Suite 107
Raleigh, NC 27604
919.873.2211
Canister No.: di) 12 d p
Flow Controller No.: a 69 44*7
Purge #1
Purge #2
Purge #3
Start Shroud He W
f S5. 9
I T. `I
I _ a
Purge Start Time:
1 :
1 14 3
t 14tg
Volume Purged (mQ:
566 �-�--
End Shroud He %:
(�(, �p
(s�p
( (s.0
He in Soil Gas (ppm):
C 1 VA
PID Ambient Air (ppb):
PID SV Point (ppb):
Note: 1% = 10,000 ppm
SAMPLE COLLECTION
Time
Vacuum (in Hg)
Sta rt: 1 15 0
-.5 0
f 2to
21
IZa5
— )7
Isto
1Z IS
- g
Stop: ( Z Za
' S
VOLUME CALCULATION
Diameter
Gallons/ft
Liters/ft
mL or cc/ft
3
0.3672
1.39
1390
2
0.1632
0.618
617.8
1
0.04080
0.154
154.4
3/4
0.02295
0.0869
86.9
5/8
0.01594
0.0603
60.3
1/2
0.01020
0.0386
38.6
3/8
0.00574
0.0217
21.7
1/4
0.00255
1 0.00965
9.65
Assumed porosity: sand pack= 0.4, dry bentonite=0.5

Soil Vapor Tracer Test & Sampling
Sample ID: Q 10
Project No.: 70197536
Site Location: Durham, NC
Field Personnel: AF& ED
Date: 09/11 /19
Weather: Soy\ v\y ' S
Cannister Size: 6-liter
Sample Rate: <200 mL/min
Analysis: TO-15
HELIUM TRACER TEST
Irerracon
2401 Brentwood Road Suite 107
Raleigh, NC 27604
919.873.2211
aO(-0"1
Canister No.: �.
Flow Controller No.: W9& 1,7
Purge #1
Purge #2
Purge #3
Start Shroud He W
) -7
3
?o �-
Purge Start Time:
f Z qC0
Volume Purged (mL):
"pQxL-
560&L
S�D,ti,L
End Shroud He %:
j (o, -7
lbi
�b
He in Soil Gas (ppm):
':L
4 oi
C 1 ;�►�
PID Ambient Air (ppb):
G 10
C b
4 1
PID SV Point (ppb):
104
946 h'
6B3 h
Note: 1% = 10,000 ppm
SAMPLE COLLECTION
Time
Vacuum (in Hg)
Start:
U 3
r ZC01
o
, ZZ.S
13
Stop: 13 5
VOLUME CALCULATION
Diameter
Gallons/ft
Liters/ft
mLorcc/ft
3
0.3672
1.39
1390
2
0.1632
0.618
617.8
1
0.04080
0.154
154.4
3/4 1
0.02295
0.0869
86.9
5/8
0.01594
0.0603
60.3
1/2
0.01020
0.0386
38.6
3/8
0.00574
0.0217
21.7
1/4
0.00255
0.00965
9.65
Assumed porosity: sand pack= 0.4, dry bentonite=0.5

Soil Vapor Tracer Test & Sampling
Sample ID: � V.-v 3
Project No.: 70197536
Site Location: Durham, NC
Field Personnel: AF& ED
Date: 09/11 /19
Weather: Sunny !?05
Cannister Size: 6-liter
Sample Rate: <200 mUmin
Analysis: TO-15
HELIUM TRACER TEST
Irerracon
2401 Brentwood Road Suite 107
Raleigh, NC 27604
919.873.2211
Canister No.: 0 O CP �I )
Flow Controller No.:
Purge #1
Purge #2
Purge #3
Start Shroud He %:
1619
I'll Z
Zo. ,Z
Purge Start Time:
Ll Z
N J9
ILt,?-f
Volume Purged (mL):
SCO
End Shroud He %:
He in Soil Gas (ppm):
(
PID Ambient Air (ppb):
�
PID SV Point (ppb):
13S
11
29
Note: 1% = 10,000 ppm
SAMPLE COLLECTION
Time
Vacuum (in Hg)
Start: j q ZA
- 30
Z (D
"1 " I
Stop:
VOLUME CALCULATION
Diameter
Gallons/ft
Liters/ft
mL or cc/ft
3
0.3672
1.39
1390
2
0.1632
0.618
617.8
1
0.04080
0.154
154.4
3/4
0.02295
0.0869
86.9
5/8
0.01594
0.0603
60.3
1/2
0.01020
0.0386
38.6
3/8
0.00574
0.0217
21.7
1/4
0.00255
0.00965
9.65
Assumed porosity: sand pack= 0.4, dry bentonite=0.5

Soil Vapor Tracer Test & Sampling
Sample ID: S V "'O
Project No.: 70197536
Site Location: Durham, NC
Field Personnel: AF& ED
Date: 09/11 /19
Weather: to"/ g`bs
Cannister Size: 6-liter
Sample Rate: <200 mL/min
Analysis: TO-15
HELIUM TRACER TEST
Irerracon
2401 Brentwood Road Suite 107
Raleigh, NC 27604
919.873.2211
Canister No.: 0 i LI a 3%
Flow Controller No.: 0"(06 -r
Purge #1
Purge #2
Purge #3
Start Shroud He %:
1?. -7
( T, 3
1 o Q
Purge Start Time:
l75 oO
i C5 ©3
1 soy'
Volume Purged (mL):
S00
o
End Shroud He %:
i5: 0
(, �'
f
He in Soil Gas (ppm):
P eyj
G j n1
PID Ambient Air (ppb):
c_.
<% L
L (b
PID SV Point (ppb):
1 t
ro b
Note: 1% = 10,000 ppm
SAMPLE COLLECTION
Time
Vacuum (in Hg)
Start:
30
J�
`Z�
5 3 3
f
VOLUME CALCULATION
Diameter
Gallons/ft
Liters/ft
mLorcc/ft
3
0.3672
1.39
1390
2
0.1632
0.618
617.8
1
0.04080
0.154
154.4
3/4
0.02295
0.0869
86.9
5/8
0.01594
0.0603
60.3
1/2
0.01020
0.0386
38.6
3/8
0.00574
0.0217
21.7
1/4
0.00255
0.00965
9.65
Assumed porosity: sand pack= 0.4, dry bentonite=0.5

Soil Vapor Tracer Test & Sampling
Sample ID: Sy - n 5'
Project No.: 70197536
Site Location: Durham, NC
Field Personnel: AF& ED
Date: 09/11 /19
Weather: g Ds - 9 Ds 1✓
Cannister Size: 6-liter
Sample Rate: <200 mL/min
Analysis: TO-15
HELIUM TRACER TEST
1rerracon
2401 Brentwood Road Suite 107
Raleigh, NC 27604
919.873.2211
Canister No.:
Flow Controller No.:
0oq,'Z0
P 011,2-5,
Purge#1
Purge #2
Purge #3
Start Shroud He%:
20.0
1.�-
' f.
Purge Start Time:
1s'L( 0
19 GO
S-�,
Volume Purged (mQ:
.f ac`�
goo
S0O
End Shroud He %:
/ Z-
16.0
He in Soil Gas (ppm):
PID Ambient Air (ppb):
< 1
<)
PID SV Point (ppb):
A�-K t
f d J pa
Note: 1%= 10,000 ppm
SAMPLE COLLECTION
Time
Vacuum (in Hg)
Sta rt:
- 3 0
jb0
-z�-
J
tP
�` 0
S�0ar ! t `6 2-- -~ 5
WJ
VOLUME CALCULATION
Diameter
Gallons/ft
Liters/ft
mL or cc/ft
3
0.3672
1.39
1390
2
0.1632
0.618
617.8
1
0.04080
0.154
154.4
3/4
0.02295
0.0869
86.9
5/8
0.01594
0.0603
60.3
1/2
0.01020
0.0386
38.6
3/8
0.00574
0.0217
21.7
1/4
0.00255
0.00965
9.65
Assumed porosity: sand pack= 0.4, dry bentonite=0.5

Lithology Log
Boring ID: SB-01
Irerracon
Project Number: 70197536
Start Date/Time: 09/11/19 11:05
Sample Method
Drilling Method
Site Location: Piedmont Metalworks
End Date/Time: 09/11/19 11:30
x Hand Auger
❑ Macro -Core
❑ Split Spoon
❑ Shelby Tube
❑ DPT
❑ HSA
❑ Mud Rotary
❑ Air Rotary
❑ Rock Core
Weather: 80s°F, Sunny
Boring Diameter: 2.5 inches
Logged By: ECD
Total Depth: 3 ft
Drilling Sub: --
Water Level: --
Drill Rig: --
Well Installed: No
a
o
oE
0(Depth
interval) Color, MAIN COMPONENT, minor component(s), structure,
Lab Sample:
Drilling method,
a)vVi
c
W
3 V
moisture, angularity, odor, staining
ID, time
tooling, depth
_
o
m
12
6.2
(0-3 ft) Reddish -brown SILTY CLAY, trace mica, moist, odor not observed
1
Light grey mottling from 1-2 ft
Soil Sample
12
NA
2.8
CL
Sample ID:
Hand Auger
2.5
2
SB-01 (2.5-3)
12
3.1
Time: 12:00
3.2
3
Boring terminated at 3 ft bls
Notes:
ppm: parts per million ppb: parts per billion NA= Not applicable bls = below land surface

Lithology Log
Boring ID: SB-02
Irerracon
Project Number: 70197536
Start Date/Time: 09/11/19 12:10
Sample Method
Drilling Method
Site Location: Piedmont Metalworks
End Date/Time: 09/11/19 12:30
x Hand Auger
❑ Macro -Core
❑ Split Spoon
❑ Shelby Tube
❑ DPT
❑ HSA
❑ Mud Rotary
❑ Air Rotary
❑ Rock Core
Weather: 80s°F, Sunny
Boring Diameter: 2.5 inches
Logged By: ECD
Total Depth: 4 ft
Drilling Sub: --
Water Level: --
Drill Rig: --
Well Installed: No
L
> a,
N
o
o
u
(Depth interval) Color, MAIN COMPONENT, minor component(s), structure,
Lab Sample:
Drilling method,
o
v c
3
moisture, angularity, odor, staining
ID, time
tooling, depth
o
v
m
12
3.4
(0-3.5 ft) Reddish -brown to orange -brown SILTY CLAY, trace sand and mica,
3.0
1
moist, odor not observed, light grey mottling in first 2 ft
Soil Sample
2
12
2.0
Sample ID:
NA
CL
SB-02 (3.5-4)
Hand Auger
2.3
12
3.0
3
Time: 13:00
12
3.4
3.4
4
(3.5-4 ft) Dark grey to reddish -brown t SILTY CLAY, trace sand and mica, moist
Boring terminated at 4 ft bls
Notes:
ppm: parts per million ppb: parts per billion NA= Not applicable bls = below land surface

Lithology Log
Boring ID: SB-03
Irerracon
Project Number: 70197536
Start Date/Time: 09/11/19 13:30
Sample Method
Drilling Method
Site Location: Piedmont Metalworks
End Date/Time: 09/11/19 14:00
x Hand Auger
❑ Macro -Core
❑ Split Spoon
❑ Shelby Tube
❑ DPT
❑ HSA
❑ Mud Rotary
❑ Air Rotary
❑ Rock Core
Weather: 80s°F, Sunny
Boring Diameter: 2.5 inches
Logged By: ECD
Total Depth: 2 ft
Drilling Sub: --
Water Level: --
Drill Rig: --
Well Installed: No
a
o
oE
0(Depth
interval) Color, MAIN COMPONENT, minor component(s), structure,
Lab Sample:
Drilling method,
a)vVi
W c
3 V
moisture, angularity, odor, staining
ID, time
tooling, depth
_
o
m
(0-0.25 ft) Black to light grey SILTY SAND, lots of organic matter (roots), moist
SoilSample
1
12
NA
CLPetroleum
odor observed
Sample ID:
Hand Auger
Rt�o.
(0.25-2 ft) Light brown to brown, SILTY CLAY, trace sand and mica, dry to moist
SB-03 (1.5-2)
2
12
Slight petroleum odor 0.25-0.5 ft
Time: 14:20
Boring terminated at 2 ft bls
Notes:
ppm: parts per million ppb: parts per billion NA= Not applicable bls = below land surface

Lithology Log
Boring ID: BG-01
Irerracon
Project Number: 70197536
Start Date/Time: 09/11/19
Sample Method
Drilling Method
Site Location: Piedmont Metalworks
End Date/Time: 09/11/19
x Hand Auger
❑ Macro -Core
❑ Split Spoon
❑ Shelby Tube
❑ DPT
❑ HSA
❑ Mud Rotary
❑ Air Rotary
❑ Rock Core
Weather: 80s°F, Sunny
Boring Diameter: 2.5 inches
Logged By: ECD/ALF
Total Depth: 3 ft
Drilling Sub: --
Water Level: --
Drill Rig: --
Well Installed: No
a
o
oE
0(Depth
interval) Color, MAIN COMPONENT, minor component(s), structure,
Lab Sample:
Drilling method,
a)vVi
c
W
3 V
moisture, angularity, odor, staining
ID, time
tooling, depth
_
o
m
3.1
(0-3 ft) Orange -brown SILTY CLAY, dry, staining/odors not observed
1
12
Soil Sample
0.1
12
NA
8.0
CL
Sample ID:
Hand Auger
13.4
2
BG-01 (2-3)
12
7.0
Time: 10:35
3.5
3
Boring terminated at 3 ft bls
Notes:
ppm: parts per million ppb: parts per billion NA= Not applicable bls = below land surface

APPENDIX B
LABORATORY ANALYTICAL REPORTS AND
CHAIN -OF -CUSTODY RECORDS

SHEALY ENVIRONMENTAL SERVICES, INC.
Report of Analysis
Terracon Consultants, Inc.
2401 Brentwood Road
Suite 107 1
Raleigh, NC 27604
Attention: Analee Farrell
Project Name: Piedmont MetalWorks Building LSI
Project Number: 70197536
Lot Number:U112065
Date Completed:09/24/2019
09/24/2019 4:57 PM
Approved and released by:
Project Manager: Cathy S. Dover
�Q PccR 0
24r
I
AM
ACCREDITED
qeo
_ 11900 eLAa
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 Shealy Environmental Services, Inc.
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 1 of 46

SHEALY ENVIRONMENTAL SERVICES, INC.
SC DHEC No: 32010001 NELAC No: E87653 NC DENR No: 329 NC Field Parameters No: 5639
Case Narrative
Terracon Consultants, Inc.
Lot Number: U112065
This Report of Analysis contains the analytical result(s) for the sample(s) listed on the Sample Summary
following this Case Narrative. The sample receiving date is documented in the header information
associated with each sample.
All results listed in this report relate only to the samples that are contained within this report.
Sample receipt, sample analysis, and data review have been performed in accordance with the most
current approved NELAC standards, the Shealy Environmental Services, Inc. ("Shealy") Quality
Assurance Management Plan (QAMP), standard operating procedures (SOPS), and Shealy policies. Any
exceptions to the NELAC standards, the QAMP, SOPS or policies are qualified on the results page or
discussed below.
Where applicable, all soil sample analysis are reported on a dry weight basis unless flagged with a "W"
qualifier.
Hexavalent Chromium 7199
Sample U112065-003 (SB-02 (3.5-4) and U112065-004 (1.5-2) were re -analyzed since the first analysis
had a detect above the LOQ. Per method and SOP, we re -analyzed 2 replicates and the re -analysis
compares to the original Run 1. The original Run 1 has been reported.
If you have any questions regarding this report please contact the Shealy Project Manager listed on the
cover page.
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 2 of 46

SHEALY ENVIRONMENTAL SERVICES, INC.
Sample Summary
Terracon Consultants, Inc.
Lot Number: U112065
Project Name: Piedmont MetalWorks Building LSI
Project Number: 70197536
Sample Number
Sample ID
Matrix
Date Sampled
Date Received
001
BG-01 (2-3)
Solid
09/11/2019 1035
09/12/2019
002
SB-01 (2.5-3)
Solid
09/11/2019 1200
09/12/2019
003
SB-02 (3.5-4)
Solid
09/11/2019 1300
09/12/2019
004
SB-03 (1.5-2)
Solid
09/11/2019 1420
09/12/2019
005
Trip Blank
Aqueous
09/11/2019
09/12/2019
(5 samples)
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 3 of 46

SHEALY ENVIRONMENTAL SERVICES, INC.
Detection Summary
Terracon Consultants, Inc.
Lot Number: U112065
Project Name: Piedmont MetalWorks
Building LSI
Project Number: 70197536
Sample Sample ID
Matrix
Parameter
Method
Result
Q
Units
Page
001
BG-01 (2-3)
Solid
Hexavalent Chromium
7199
0.57
J
mg/kg
5
001
BG-01 (2-3)
Solid
Arsenic
6010D
3.4
mg/kg
6
001
BG-01 (2-3)
Solid
Barium
6010D
95
mg/kg
6
001
BG-01 (2-3)
Solid
Chromium
6010D
35
mg/kg
6
001
BG-01 (2-3)
Solid
Lead
6010D
13
mg/kg
6
002
SB-01 (2.5-3)
Solid
Hexavalent Chromium
7199
0.33
J
mg/kg
7
002
SB-01 (2.5-3)
Solid
Acetone
8260D
0.15
mg/kg
8
002
SB-01 (2.5-3)
Solid
Carbon disulfide
8260D
0.0049
J
mg/kg
8
002
SB-01 (2.5-3)
Solid
Methylene chloride
8260D
0.0059
mg/kg
8
002
SB-01 (2.5-3)
Solid
Arsenic
6010D
5.6
mg/kg
10
002
SB-01 (2.5-3)
Solid
Barium
6010D
270
mg/kg
10
002
SB-01 (2.5-3)
Solid
Chromium
6010D
21
mg/kg
10
002
SB-01 (2.5-3)
Solid
Lead
6010D
15
mg/kg
10
003
SB-02 (3.5-4)
Solid
Hexavalent Chromium
7199
1.5
mg/kg
11
003
SB-02 (3.5-4)
Solid
Acetone
8260D
0.12
mg/kg
12
003
SB-02 (3.5-4)
Solid
Carbon disulfide
8260D
0.0051
mg/kg
12
003
SB-02 (3.5-4)
Solid
Methylene chloride
8260D
0.0051
mg/kg
12
003
SB-02 (3.5-4)
Solid
Arsenic
6010D
3.0
mg/kg
14
003
SB-02 (3.5-4)
Solid
Barium
6010D
140
mg/kg
14
003
SB-02 (3.5-4)
Solid
Chromium
6010D
47
mg/kg
14
003
SB-02 (3.5-4)
Solid
Lead
6010D
15
mg/kg
14
004
SB-03 (1.5-2)
Solid
Hexavalent Chromium
7199
3.5
mg/kg
15
004
SB-03 (1.5-2)
Solid
Acetone
8260D
0.22
mg/kg
16
004
SB-03 (1.5-2)
Solid
Ethylbenzene
8260D
0.0039
J
mg/kg
16
004
SB-03 (1.5-2)
Solid
Isopropylbenzene
8260D
0.005
mg/kg
16
004
SB-03 (1.5-2)
Solid
Methylene chloride
8260D
0.0046
J
mg/kg
16
004
SB-03 (1.5-2)
Solid
Xylenes (total)
8260D
0.084
mg/kg
17
004
SB-03 (1.5-2)
Solid
Arsenic
6010D
1.9
mg/kg
18
004
SB-03 (1.5-2)
Solid
Barium
6010D
180
mg/kg
18
004
SB-03 (1.5-2)
Solid
Cadmium
6010D
0.081
J
mg/kg
18
004
SB-03 (1.5-2)
Solid
Chromium
6010D
140
mg/kg
18
004
SB-03 (1.5-2)
Solid
Lead
6010D
13
mg/kg
18
(32 detections)
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 4 of 46

Inorganic non-metals
Client:Terracon Consultants, Inc. Laboratory ID: U112065-001
Description: BG-01 (2-3) Matrix: Solid
Date Sampled:09/11/2019 1035 Project Name: Piedmont MetalWorks % Solids: 86.5 09/13/2019 0046
Date Received:09/12/2019 Project Number: 70197536
Run
Prep Method
Analytical Method
Dilution Analysis Date Analyst
Prep Date Batch
1
9012B
(Cyanide - To) 9012B
1 09/18/2019 1808 MSG
09/17/2019 2354 29222
1
3060A
(Hexavalent C) 7199
1 09/23/2019 1740 SLU
09/20/2019 1522 29563
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
Cyanide - Total
Hexavalent Chromium
57-12-5 9012B ND 0.58 0.23 mg/kg 1
18540-29-9 7199 0.57 J 1.2 0.23 mg/kg 1
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
NO = 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
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 5 of 46

RCRA Metals
Client:Terracon Consultants, Inc. Laboratory ID: U112065-001
Description: BG-01 (2-3) Matrix: Solid
Date Sampled:09/11/2019 1035 Project Name: Piedmont MetalWorks % Solids: 86.5 09/13/2019 0046
Date Received:09/12/2019 Project Number: 70197536
Run Prep Method
1 3050B
1 7471 B
2 3050B
Analytical Method
601 OD
7471 B
601 OD
Dilution Analysis Date Analyst
1 09/17/2019 2324 LLL
1 09/17/2019 1530 KSH2
2 09/18/2019 0723 LLL
Prep Date Batch
09/17/2019 0939 28845
09/17/2019 1219 28854
09/17/2019 0939 28845
CAS Analytical
Parameter
Number Method
Result Q LOQ
DL
Units
Run
Arsenic
7440-38-2 6010D
3.4 0.85
0.28
mg/kg
1
Barium
7440-39-3 6010D
95 1.5
0.37
mg/kg
1
Cadmium
7440-43-9 6010D
ND 0.28
0.071
mg/kg
1
Chromium
7440-47-3 6010D
35 0.57
0.14
mg/kg
1
Lead
7439-92-1 6010D
13 1.1
0.51
mg/kg
2
Mercury
7439-97-6 7471B
ND 0.091
0.022
mg/kg
1
Selenium
7782-49-2 6010D
ND 1.1
0.46
mg/kg
1
Silver
7440-22-4 6010D
ND 0.57
0.14
mg/kg
1
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
NO = 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
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 6 of 46

Inorganic non-metals
Client:Terracon Consultants, Inc. Laboratory ID: U112065-002
Description: SB-01 (2.5-3) Matrix: Solid
Date Sampled:09/11/2019 1200 Project Name: Piedmont MetalWorks % Solids: 83.8 09/13/2019 0046
Date Received:09/12/2019 Project Number: 70197536
Run
Prep Method
Analytical Method
Dilution Analysis Date Analyst
Prep Date Batch
1
9012B
(Cyanide - To) 9012B
1 09/18/2019 1811 MSG
09/17/2019 2354 29222
1
3060A
(Hexavalent C) 7199
1 09/23/2019 1819 SLU
09/20/2019 1522 29563
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
Cyanide - Total
Hexavalent Chromium
57-12-5 9012B ND 0.60 0.24 mg/kg 1
18540-29-9 7199 0.33 J 1.2 0.24 mg/kg 1
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
NO = 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
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 7 of 46

Volatile Organic Compounds by GC/MS
Client:Terracon Consultants, Inc. Laboratory ID: U112065-002
Description: SB-01 (2.5-3) Matrix: Solid
Date Sampled:09/11/2019 1200 Project Name: Piedmont MetalWorks % Solids: 83.8 09/13/2019 0046
Date Received:09/12/2019 Project Number: 70197536
Run Prep Method Analytical Method
Dilution Analysis Date Analyst
Prep Date
Batch
Sample Wt.(g)
1 5035 8260D
1 09/17/20191840
ECB
29150
5.36
2 5035 8260D
1 09/18/2019 2149 ALR1
29365
7.28
CAS
Analytical
Parameter
Number
Method
Result Q
LOQ
DL
Units
Run
Acetone
67-64-1
8260D
0.15
0.016
0.0066
mg/Kg
2
Benzene
71-43-2
8260D
ND
0.0056
0.0022
mg/Kg
1
Bromodichloromethane
75-27-4
8260D
ND
0.0056
0.0022
mg/Kg
1
Bromoform
75-25-2
8260D
ND
0.0056
0.0022
mg/Kg
1
Bromomethane (Methyl bromide)
74-83-9
8260D
ND
0.0056
0.0033
mg/Kg
1
2-Butanone (MEK)
78-93-3
8260D
ND
0.022
0.0045
mg/Kg
1
Carbon disulfide
75-15-0
8260D
0.0049 J
0.0056
0.0022
mg/Kg
1
Carbon tetrachloride
56-23-5
8260D
ND
0.0056
0.0022
mg/Kg
1
Chlorobenzene
108-90-7
8260D
ND
0.0056
0.0022
mg/Kg
1
Chloroethane
75-00-3
8260D
ND
0.0056
0.0022
mg/Kg
1
Chloroform
67-66-3
8260D
ND
0.0056
0.0022
mg/Kg
1
Chloromethane (Methyl chloride)
74-87-3
8260D
ND
0.0056
0.0033
mg/Kg
1
Cyclohexane
110-82-7
8260D
ND
0.0056
0.0022
mg/Kg
1
1,2-Dibromo-3-chloropropane (DBCP)
96-12-8
8260D
ND
0.0056
0.0022
mg/Kg
1
Dibromochloromethane
124-48-1
8260D
ND
0.0056
0.0022
mg/Kg
1
1,2-Dibromoethane (EDB)
106-93-4
8260D
ND
0.0056
0.0022
mg/Kg
1
1,2-Dichlorobenzene
95-50-1
8260D
ND
0.0056
0.0022
mg/Kg
1
1,3-Dichlorobenzene
541-73-1
8260D
ND
0.0056
0.0022
mg/Kg
1
1,4-Dichlorobenzene
106-46-7
8260D
ND
0.0056
0.0022
mg/Kg
1
Dichlorodifluoromethane
75-71-8
8260D
ND
0.0056
0.0033
mg/Kg
1
1,1-Dichloroethane
75-34-3
8260D
ND
0.0056
0.0022
mg/Kg
1
1,2-Dichloroethane
107-06-2
8260D
ND
0.0056
0.0022
mg/Kg
1
1,1-Dichloroethene
75-35-4
8260D
ND
0.0056
0.0022
mg/Kg
1
cis- 1,2-Dichloroethene
156-59-2
8260D
ND
0.0056
0.0022
mg/Kg
1
trans- 1,2-Dichloroethene
156-60-5
8260D
ND
0.0056
0.0022
mg/Kg
1
1,2-Dichloropropane
78-87-5
8260D
ND
0.0056
0.0022
mg/Kg
1
cis- 1,3-Dichloropropene
10061-01-5
8260D
ND
0.0056
0.0022
mg/Kg
1
trans- 1,3-Dichloropropene
10061-02-6
8260D
ND
0.0056
0.0022
mg/Kg
1
Ethylbenzene
100-41-4
8260D
ND
0.0056
0.0022
mg/Kg
1
2-Hexanone
591-78-6
8260D
ND
0.011
0.0045
mg/Kg
1
Isopropylbenzene
98-82-8
8260D
ND
0.0056
0.0022
mg/Kg
1
Methyl acetate
79-20-9
8260D
ND
0.0056
0.0022
mg/Kg
1
Methyl tertiary butyl ether (MTBE)
1634-04-4
8260D
ND
0.0056
0.0022
mg/Kg
1
4-Methyl-2-pentanone
108-10-1
8260D
ND
0.011
0.0045
mg/Kg
1
Methylcyclohexane
108-87-2
8260D
ND
0.0056
0.0022
mg/Kg
1
Methylene chloride
75-09-2
8260D
0.0059
0.0056
0.0022
mg/Kg
1
Styrene
100-42-5
8260D
ND
0.0056
0.0022
mg/Kg
1
1,1,2,2-Tetrachloroethane
79-34-5
8260D
ND
0.0056
0.0022
mg/Kg
1
Tetrachloroethene
127-18-4
8260D
ND
0.0056
0.0022
mg/Kg
1
Toluene
108-88-3
8260D
ND
0.0056
0.0022
mg/Kg
1
1,1,2-Trichloro-1,2,2-Trifluoroethane
76-13-1
8260D
ND
0.0056
0.0022
mg/Kg
1
1,2,4-Trichlorobenzene
120-82-1
8260D
ND
0.0056
0.0022
mg/Kg
1
1,1,1-Trichloroethane
71-55-6
8260D
ND
0.0056
0.0022
mg/Kg
1
LOQ = Limit of Quantitation B = Detected in the method blank
E = Quantitation of
compound exceeded the
calibration range
DL = Detection Limit
NO = 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
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 8 of 46

Volatile Organic Compounds by GC/MS
Client:Terracon Consultants, Inc. Laboratory ID: U112065-002
Description: SB-01 (2.5-3) Matrix: Solid
Date Sampled:09/11/2019 1200 Project Name: Piedmont MetalWorks % Solids: 83.8 09/13/2019 0046
Date Received:09/12/2019 Project Number: 70197536
Run
Prep Method
Analytical Method
Dilution Analysis Date Analyst Prep Date
Batch
Sample Wt.(g)
1
5035
8260D
1 09/17/20191840 ECB
29150
5.36
2
5035
8260D
1 09/18/2019 2149 ALR1
29365
7.28
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
1,1,2-Trichloroethane
Trichloroethene
Trichlorofluoromethane
Vinyl chloride
Xylenes (total)
Surrogate
Bromofluorobenzene
1,2-Dichloroethane-d4
Toluene-d8
79-00-5
8260D
ND
0.0056
0.0022
mg/Kg
1
79-01-6
8260D
ND
0.0056
0.0022
mg/Kg
1
75-69-4
8260D
ND
0.0056
0.0022
mg/Kg
1
75-01-4
8260D
ND
0.0056
0.0033
mg/Kg
1
1330-20-7
8260D
ND
0.011
0.0045
mg/Kg
1
Run 1 Acceptance
Run 2 Acceptance
Q % Recovery Limits
Q %
Recovery
Limits
114 47-138 103 47-138
111 53-142 98 53-142
118 68-124 111 68-124
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
NO = 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
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 9 of 46

RCRA Metals
Client:Terracon Consultants, Inc. Laboratory ID: U112065-002
Description: SB-01 (2.5-3) Matrix: Solid
Date Sampled:09/11/2019 1200 Project Name: Piedmont MetalWorks % Solids: 83.8 09/13/2019 0046
Date Received:09/12/2019 Project Number: 70197536
Run Prep Method
1 3050B
1 7471 B
Analytical Method Dilution Analysis Date Analyst
601 OD 1 09/17/2019 2330 LLL
7471 B 1 09/17/2019 1533 KSH2
Prep Date Batch
09/17/2019 0939 28845
09/17/2019 1219 28854
CAS Analytical
Parameter
Number Method
Result Q
LOQ
DL
Units
Run
Arsenic
7440-38-2 6010D
5.6
0.88
0.29
mg/kg
1
Barium
7440-39-3 6010D
270
1.5
0.38
mg/kg
1
Cadmium
7440-43-9 6010D
ND
0.29
0.074
mg/kg
1
Chromium
7440-47-3 6010D
21
0.59
0.15
mg/kg
1
Lead
7439-92-1 6010D
15
0.59
0.26
mg/kg
1
Mercury
7439-97-6 7471B
ND
0.090
0.022
mg/kg
1
Selenium
7782-49-2 6010D
ND
1.2
0.48
mg/kg
1
Silver
7440-22-4 6010D
ND
0.59
0.15
mg/kg
1
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
NO = 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
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 10 of 46

Inorganic non-metals
Client:Terracon Consultants, Inc. Laboratory ID: U112065-003
Description: SB-02 (3.5-4) Matrix: Solid
Date Sampled:09/11/2019 1300 Project Name: Piedmont MetalWorks % Solids: 81.6 09/13/2019 0046
Date Received:09/12/2019 Project Number: 70197536
Run
Prep Method
Analytical Method
Dilution Analysis Date Analyst
Prep Date Batch
1
9012B
(Cyanide - To) 9012B
1 09/18/2019 1812 MSG
09/17/2019 2354 29222
1
3060A
(Hexavalent C) 7199
1 09/23/2019 1832 SLU
09/20/2019 1522 29563
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
Cyanide - Total
Hexavalent Chromium
57-12-5 9012B ND 0.61 0.25 mg/kg 1
18540-29-9 7199 1.5 1.2 0.25 mg/kg 1
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
NO = 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
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 11 of 46

Volatile Organic Compounds by GC/MS
Client:Terracon Consultants, Inc. Laboratory ID: U112065-003
Description: SB-02 (3.5-4) Matrix: Solid
Date Sampled:09/11/2019 1300 Project Name: Piedmont MetalWorks % Solids: 81.6 09/13/2019 0046
Date Received:09/12/2019 Project Number: 70197536
Run Prep Method Analytical Method
Dilution Analysis Date Analyst
Prep Date
Batch
Sample Wt.(g)
1 5035 8260D
1 09/17/20191904
ECB
29150
6.35
2 5035 8260D
1 09/18/2019 2212 ALR1
29365
6.62
CAS
Analytical
Parameter
Number
Method
Result Q
LOQ
DL
Units
Run
Acetone
67-64-1
8260D
0.12
0.019
0.0074
mg/Kg
2
Benzene
71-43-2
8260D
ND
0.0048
0.0019
mg/Kg
1
Bromodichloromethane
75-27-4
8260D
ND
0.0048
0.0019
mg/Kg
1
Bromoform
75-25-2
8260D
ND
0.0048
0.0019
mg/Kg
1
Bromomethane (Methyl bromide)
74-83-9
8260D
ND
0.0048
0.0029
mg/Kg
1
2-Butanone (MEK)
78-93-3
8260D
ND
0.019
0.0039
mg/Kg
1
Carbon disulfide
75-15-0
8260D
0.0051
0.0048
0.0019
mg/Kg
1
Carbon tetrachloride
56-23-5
8260D
ND
0.0048
0.0019
mg/Kg
1
Chlorobenzene
108-90-7
8260D
ND
0.0048
0.0019
mg/Kg
1
Chloroethane
75-00-3
8260D
ND
0.0048
0.0019
mg/Kg
1
Chloroform
67-66-3
8260D
ND
0.0048
0.0019
mg/Kg
1
Chloromethane (Methyl chloride)
74-87-3
8260D
ND
0.0048
0.0029
mg/Kg
1
Cyclohexane
110-82-7
8260D
ND
0.0048
0.0019
mg/Kg
1
1,2-Dibromo-3-chloropropane (DBCP)
96-12-8
8260D
ND
0.0048
0.0019
mg/Kg
1
Dibromochloromethane
124-48-1
8260D
ND
0.0048
0.0019
mg/Kg
1
1,2-Dibromoethane (EDB)
106-93-4
8260D
ND
0.0048
0.0019
mg/Kg
1
1,2-Dichlorobenzene
95-50-1
8260D
ND
0.0048
0.0019
mg/Kg
1
1,3-Dichlorobenzene
541-73-1
8260D
ND
0.0048
0.0019
mg/Kg
1
1,4-Dichlorobenzene
106-46-7
8260D
ND
0.0048
0.0019
mg/Kg
1
Dichlorodifluoromethane
75-71-8
8260D
ND
0.0048
0.0029
mg/Kg
1
1,1-Dichloroethane
75-34-3
8260D
ND
0.0048
0.0019
mg/Kg
1
1,2-Dichloroethane
107-06-2
8260D
ND
0.0048
0.0019
mg/Kg
1
1,1-Dichloroethene
75-35-4
8260D
ND
0.0048
0.0019
mg/Kg
1
cis- 1,2-Dichloroethene
156-59-2
8260D
ND
0.0048
0.0019
mg/Kg
1
trans- 1,2-Dichloroethene
156-60-5
8260D
ND
0.0048
0.0019
mg/Kg
1
1,2-Dichloropropane
78-87-5
8260D
ND
0.0048
0.0019
mg/Kg
1
cis- 1,3-Dichloropropene
10061-01-5
8260D
ND
0.0048
0.0019
mg/Kg
1
trans- 1,3-Dichloropropene
10061-02-6
8260D
ND
0.0048
0.0019
mg/Kg
1
Ethylbenzene
100-41-4
8260D
ND
0.0048
0.0019
mg/Kg
1
2-Hexanone
591-78-6
8260D
ND
0.0096
0.0039
mg/Kg
1
Isopropylbenzene
98-82-8
8260D
ND
0.0048
0.0019
mg/Kg
1
Methyl acetate
79-20-9
8260D
ND
0.0048
0.0019
mg/Kg
1
Methyl tertiary butyl ether (MTBE)
1634-04-4
8260D
ND
0.0048
0.0019
mg/Kg
1
4-Methyl-2-pentanone
108-10-1
8260D
ND
0.0096
0.0039
mg/Kg
1
Methylcyclohexane
108-87-2
8260D
ND
0.0048
0.0019
mg/Kg
1
Methylene chloride
75-09-2
8260D
0.0051
0.0048
0.0019
mg/Kg
1
Styrene
100-42-5
8260D
ND
0.0048
0.0019
mg/Kg
1
1,1,2,2-Tetrachloroethane
79-34-5
8260D
ND
0.0048
0.0019
mg/Kg
1
Tetrachloroethene
127-18-4
8260D
ND
0.0048
0.0019
mg/Kg
1
Toluene
108-88-3
8260D
ND
0.0048
0.0019
mg/Kg
1
1,1,2-Trichloro-1,2,2-Trifluoroethane
76-13-1
8260D
ND
0.0048
0.0019
mg/Kg
1
1,2,4-Trichlorobenzene
120-82-1
8260D
ND
0.0048
0.0019
mg/Kg
1
1,1,1-Trichloroethane
71-55-6
8260D
ND
0.0048
0.0019
mg/Kg
1
LOQ = Limit of Quantitation B = Detected in the method blank
E = Quantitation of
compound exceeded the
calibration range
DL = Detection Limit
NO = 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
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 12 of 46

Volatile Organic Compounds by GC/MS
Client:Terracon Consultants, Inc. Laboratory ID: U112065-003
Description: SB-02 (3.5-4) Matrix: Solid
Date Sampled:09/11/2019 1300 Project Name: Piedmont MetalWorks % Solids: 81.6 09/13/2019 0046
Date Received:09/12/2019 Project Number: 70197536
Run
Prep Method
Analytical Method
Dilution Analysis Date Analyst Prep Date
Batch
Sample Wt.(g)
1
5035
8260D
1 09/17/20191904 ECB
29150
6.35
2
5035
8260D
1 09/18/2019 2212 ALR1
29365
6.62
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
1,1,2-Trichloroethane
Trichloroethene
Trichlorofluoromethane
Vinyl chloride
Xylenes (total)
Surrogate
Bromofluorobenzene
1,2-Dichloroethane-d4
Toluene-d8
79-00-5
8260D
ND
0.0048
0.0019
mg/Kg
1
79-01-6
8260D
ND
0.0048
0.0019
mg/Kg
1
75-69-4
8260D
ND
0.0048
0.0019
mg/Kg
1
75-01-4
8260D
ND
0.0048
0.0029
mg/Kg
1
1330-20-7
8260D
ND
0.0096
0.0039
mg/Kg
1
Run 1 Acceptance
Run 2 Acceptance
Q % Recovery Limits
Q %
Recovery
Limits
109 47-138 103 47-138
102 53-142 97 53-142
119 68-124 110 68-124
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
NO = 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
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 13 of 46

RCRA Metals
Client:Terracon Consultants, Inc. Laboratory ID: U112065-003
Description: SB-02 (3.5-4) Matrix: Solid
Date Sampled:09/11/2019 1300 Project Name: Piedmont MetalWorks % Solids: 81.6 09/13/2019 0046
Date Received:09/12/2019 Project Number: 70197536
Run Prep Method
1 3050B
1 7471 B
2 3050B
Analytical Method
601 OD
7471 B
601 OD
Dilution Analysis Date Analyst
1 09/17/2019 2335 LLL
1 09/17/2019 1535 KSH2
2 09/18/2019 0739 LLL
Prep Date Batch
09/17/2019 0939 28845
09/17/2019 1219 28854
09/17/2019 0939 28845
CAS Analytical
Parameter
Number Method
Result Q LOQ
DL
Units
Run
Arsenic
7440-38-2 6010D
3.0 0.82
0.27
mg/kg
1
Barium
7440-39-3 6010D
140 1.4
0.36
mg/kg
1
Cadmium
7440-43-9 6010D
ND 0.27
0.069
mg/kg
1
Chromium
7440-47-3 6010D
47 0.55
0.14
mg/kg
1
Lead
7439-92-1 6010D
15 1.1
0.49
mg/kg
2
Mercury
7439-97-6 7471B
ND 0.098
0.024
mg/kg
1
Selenium
7782-49-2 6010D
ND 1.1
0.45
mg/kg
1
Silver
7440-22-4 6010D
ND 0.55
0.14
mg/kg
1
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
NO = 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
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 14 of 46

Inorganic non-metals
Client:Terracon Consultants, Inc. Laboratory ID: U112065-004
Description: SB-03 (1.5-2) Matrix: Solid
Date Sampled:09/11/2019 1420 Project Name: Piedmont MetalWorks % Solids: 88.8 09/13/2019 0046
Date Received:09/12/2019 Project Number: 70197536
Run
Prep Method
Analytical Method
Dilution Analysis Date Analyst
Prep Date Batch
1
9012B
(Cyanide - To) 9012B
1 09/18/2019 1816 MSG
09/17/2019 2354 29222
1
3060A
(Hexavalent C) 7199
1 09/23/2019 1845 SLU
09/20/2019 1522 29563
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
Cyanide - Total
Hexavalent Chromium
57-12-5 9012B ND 0.56 0.23 mg/kg 1
18540-29-9 7199 3.5 1.1 0.23 mg/kg 1
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
NO = 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
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 15 of 46

Volatile Organic Compounds by GC/MS
Client:Terracon Consultants, Inc. Laboratory ID: U112065-004
Description: SB-03 (1.5-2) Matrix: Solid
Date Sampled:09/11/2019 1420 Project Name: Piedmont MetalWorks % Solids: 88.8 09/13/2019 0046
Date Received:09/12/2019 Project Number: 70197536
Run Prep Method Analytical Method
Dilution Analysis Date Analyst
Prep Date
Batch
Sample Wt.(g)
2 5035 8260D
1 09/18/2019 2234 ALR1
29365
5.66
CAS
Analytical
Parameter
Number
Method
Result Q
LOQ
DL
Units
Run
Acetone
67-64-1
8260D
0.22
0.020
0.0080
mg/Kg
2
Benzene
71-43-2
8260D
ND
0.0050
0.0020
mg/Kg
2
Bromodichloromethane
75-27-4
8260D
ND
0.0050
0.0020
mg/Kg
2
Bromoform
75-25-2
8260D
ND
0.0050
0.0020
mg/Kg
2
Bromomethane (Methyl bromide)
74-83-9
8260D
ND
0.0050
0.0030
mg/Kg
2
2-Butanone (MEK)
78-93-3
8260D
ND
0.020
0.0040
mg/Kg
2
Carbon disulfide
75-15-0
8260D
ND
0.0050
0.0020
mg/Kg
2
Carbon tetrachloride
56-23-5
8260D
ND
0.0050
0.0020
mg/Kg
2
Chlorobenzene
108-90-7
8260D
ND
0.0050
0.0020
mg/Kg
2
Chloroethane
75-00-3
8260D
ND
0.0050
0.0020
mg/Kg
2
Chloroform
67-66-3
8260D
ND
0.0050
0.0020
mg/Kg
2
Chloromethane (Methyl chloride)
74-87-3
8260D
ND
0.0050
0.0030
mg/Kg
2
Cyclohexane
110-82-7
8260D
ND
0.0050
0.0020
mg/Kg
2
1,2-Dibromo-3-chloropropane (DBCP)
96-12-8
8260D
ND
0.0050
0.0020
mg/Kg
2
Dibromochloromethane
124-48-1
8260D
ND
0.0050
0.0020
mg/Kg
2
1,2-Dibromoethane (EDB)
106-93-4
8260D
ND
0.0050
0.0020
mg/Kg
2
1,2-Dichlorobenzene
95-50-1
8260D
ND
0.0050
0.0020
mg/Kg
2
1,3-Dichlorobenzene
541-73-1
8260D
ND
0.0050
0.0020
mg/Kg
2
1,4-Dichlorobenzene
106-46-7
8260D
ND
0.0050
0.0020
mg/Kg
2
Dichlorodifluoromethane
75-71-8
8260D
ND
0.0050
0.0030
mg/Kg
2
1,1-Dichloroethane
75-34-3
8260D
ND
0.0050
0.0020
mg/Kg
2
1,2-Dichloroethane
107-06-2
8260D
ND
0.0050
0.0020
mg/Kg
2
1,1-Dichloroethene
75-35-4
8260D
ND
0.0050
0.0020
mg/Kg
2
cis- 1,2-Dichloroethene
156-59-2
8260D
ND
0.0050
0.0020
mg/Kg
2
trans-1,2-Dichloroethene
156-60-5
8260D
ND
0.0050
0.0020
mg/Kg
2
1,2-Dichloropropane
78-87-5
8260D
ND
0.0050
0.0020
mg/Kg
2
cis- 1,3-Dichloropropene
10061-01-5
8260D
ND
0.0050
0.0020
mg/Kg
2
trans- 1,3-Dichloropropene
10061-02-6
8260D
ND
0.0050
0.0020
mg/Kg
2
Ethylbenzene
100-41-4
8260D
0.0039 J
0.0050
0.0020
mg/Kg
2
2-Hexanone
591-78-6
8260D
ND
0.0099
0.0040
mg/Kg
2
Isopropylbenzene
98-82-8
8260D
0.0050
0.0050
0.0020
mg/Kg
2
Methyl acetate
79-20-9
8260D
ND
0.0050
0.0020
mg/Kg
2
Methyl tertiary butyl ether (MTBE)
1634-04-4
8260D
ND
0.0050
0.0020
mg/Kg
2
4-Methyl-2-pentanone
108-10-1
8260D
ND
0.0099
0.0040
mg/Kg
2
Methylcyclohexane
108-87-2
8260D
ND
0.0050
0.0020
mg/Kg
2
Methylene chloride
75-09-2
8260D
0.0046 J
0.0050
0.0020
mg/Kg
2
Styrene
100-42-5
8260D
ND
0.0050
0.0020
mg/Kg
2
1,1,2,2-Tetrachloroethane
79-34-5
8260D
ND
0.0050
0.0020
mg/Kg
2
Tetrachloroethene
127-18-4
8260D
ND
0.0050
0.0020
mg/Kg
2
Toluene
108-88-3
8260D
ND
0.0050
0.0020
mg/Kg
2
1,1,2-Trichloro-1,2,2-Trifluoroethane
76-13-1
8260D
ND
0.0050
0.0020
mg/Kg
2
1,2,4-Trichlorobenzene
120-82-1
8260D
ND
0.0050
0.0020
mg/Kg
2
1,1,1-Trichloroethane
71-55-6
8260D
ND
0.0050
0.0020
mg/Kg
2
1,1,2-Trichloroethane
79-00-5
8260D
ND
0.0050
0.0020
mg/Kg
2
LOQ = Limit of Quantitation B = Detected in the method blank
E = Quantitation of
compound exceeded the
calibration range
DL = Detection Limit
NO = 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
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 16 of 46

Volatile Organic Compounds by GC/MS
Client:Terracon Consultants, Inc. Laboratory ID: U112065-004
Description: SB-03 (1.5-2) Matrix: Solid
Date Sampled:09/11/2019 1420 Project Name: Piedmont MetalWorks % Solids: 88.8 09/13/2019 0046
Date Received:09/12/2019 Project Number: 70197536
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch Sample Wt.(g)
2 5035 8260D 1 09/18/2019 2234 ALR1 29365 5.66
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
Trichloroethene
79-01-6
8260D
ND
0.0050
0.0020
mg/Kg
2
Trichlorofluoromethane
75-69-4
8260D
ND
0.0050
0.0020
mg/Kg
2
Vinyl chloride
75-01-4
8260D
ND
0.0050
0.0030
mg/Kg
2
Xylenes (total)
1330-20-7
8260D
0.084
0.0099
0.0040
mg/Kg
2
Run 2 Acceptance
Surrogate
Q % Recovery Limits
Bromofluorobenzene
1,2-Dichloroethane-d4
Toluene-d8
101 47-138
99 53-142
111 68-124
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
NO = 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
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 17 of 46

RCRA Metals
Client:Terracon Consultants, Inc. Laboratory ID: U112065-004
Description: SB-03 (1.5-2) Matrix: Solid
Date Sampled:09/11/2019 1420 Project Name: Piedmont MetalWorks % Solids: 88.8 09/13/2019 0046
Date Received:09/12/2019 Project Number: 70197536
Run
Prep Method
Analytical Method
Dilution Analysis Date Analyst
Prep Date Batch
1
3050B
601 OD
1 09/17/2019 2341 LLL
09/17/2019 0939 28845
1
7471 B
7471 B
1 09/17/2019 1537 KSH2
09/17/2019 1219 28854
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
Arsenic
7440-38-2
Barium
7440-39-3
Cadmium
7440-43-9
Chromium
7440-47-3
Lead
7439-92-1
Mercury
7439-97-6
Selenium
7782-49-2
Silver
7440-22-4
6010D
1.9
0.81
0.27
mg/kg 1
6010D
180
1.4
0.35
mg/kg 1
6010D
0.081 J
0.27
0.068
mg/kg 1
6010D
140
0.54
0.14
mg/kg 1
6010D
13
0.54
0.24
mg/kg 1
7471B
ND
0.086
0.021
mg/kg 1
6010D
ND
1.1
0.44
mg/kg 1
6010D
ND
0.54
0.14
mg/kg 1
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit
NO = 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
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 18 of 46

QC Summary
Shealy Environmental Services, Inc. QC Data for Lot Number: U112065
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 19 of 46

Inorganic non-metals - MB
Sample ID: UQ29222-001 Matrix: Solid
Batch: 29222 Prep Method: 9012E
Analytical Method: 9012B Prep Date: 09/17/2019 2354
Parameter Result Q Dil LOQ DL Units Analysis Date
Cyanide - Total ND 1 0.50 0.20 mg/kg 09/18/2019 1803
LOQ = Limit of Quantitation
DL = Detection Limit
LOD = Limit of Detection
P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
J = Estimated result < LOQ and > DL + = RPD is out of criteria
ND = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 20 of 46
QC Data for Lot Number: U112065

Inorganic non-metals - LCS
Sample ID: UQ29222-002 Matrix: Solid
Batch: 29222 Prep Method: 9012E
Analytical Method: 9012B Prep Date: 09/17/2019 2354
Spike
Amount Result % Rec
Parameter (mg/kg) (mg/kg) Q Dil % Rec Limit Analysis Date
Cyanide - Total 5.0 5.4 1 107 90-110 09/18/2019 1804
LOQ = Limit of Quantitation
DL = Detection Limit
LOD = Limit of Detection
P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
J = Estimated result < LOQ and > DL + = RPD is out of criteria
ND = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 21 of 46
QC Data for Lot Number: U112065

Inorganic non-metals - MS
Sample ID: U112065-001MS
Matrix: Solid
Batch: 29222
Prep Method: 9012E
Analytical Method: 9012B
Prep Date: 09/17/2019 2354
Sample
Spike
Amount
Amount
Result % Rec
Parameter
(mg/kg)
(mg/kg)
(mg/kg) Q Dil % Rec Limit Analysis Date
Cyanide - Total
ND
5.8
6.1 1 106 90-110 09/18/2019 1809
LOQ = Limit of Quantitation
DL = Detection Limit
LOD = Limit of Detection
P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
J = Estimated result < LOQ and > DL + = RPD is out of criteria
ND = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 22 of 46
QC Data for Lot Number: U112065

Inorganic non-metals - MSD
Sample ID: U112065-001MD
Matrix: Solid
Batch: 29222
Prep Method: 9012E
Analytical Method: 9012B
Prep Date: 09/17/2019 2354
Sample
Spike
Amount
Amount
Result % Rec % RPD
Parameter
(mg/kg)
(mg/kg)
(mg/kg) Q Dil % Rec % RPD Limit Limit Analysis Date
Cyanide - Total
ND
5.8
5.0 N 1 87 20 90-110 20 09/18/2019 1810
LOQ = Limit of Quantitation
DL = Detection Limit
LOD = Limit of Detection
P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
J = Estimated result < LOQ and > DL + = RPD is out of criteria
ND = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 23 of 46
QC Data for Lot Number: U112065

Inorganic non-metals - MB
Sample ID: UQ29563-001 Matrix: Solid
Batch: 29563 Prep Method: 3060A
Analytical Method: 7199 Prep Date: 09/20/2019 1522
Parameter Result Q Dil LOQ DL Units Analysis Date
Hexavalent Chromium ND 1 1.0 0.20 mg/kg 09/23/2019 1714
LOQ = Limit of Quantitation
DL = Detection Limit
LOD = Limit of Detection
P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
J = Estimated result < LOQ and > DL + = RPD is out of criteria
ND = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 24 of 46
QC Data for Lot Number: U112065

Inorganic non-metals - LCS
Sample ID: UQ29563-002 Matrix: Solid
Batch: 29563 Prep Method: 3060A
Analytical Method: 7199 Prep Date: 09/20/2019 1522
Spike
Amount Result % Rec
Parameter (mg/kg) (mg/kg) Q Dil % Rec Limit Analysis Date
Hexavalent Chromium 10 9.3 1 93 80-120 09/23/2019 1727
LOQ = Limit of Quantitation
DL = Detection Limit
LOD = Limit of Detection
P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
J = Estimated result < LOQ and > DL + = RPD is out of criteria
ND = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 25 of 46
QC Data for Lot Number: U112065

Inorganic non-metals - MS
Sample ID: U112065-001MS
Matrix: Solid
Batch: 29563
Prep Method: 3060A
Analytical Method: 7199
Prep Date: 09/20/2019 1522
Sample
Spike
Amount
Amount
Result % Rec
Parameter
(mg/kg)
(mg/kg)
(mg/kg) Q Dil % Rec Limit Analysis Date
Hexavalent Chromium
0.57
12
11 1 86 70-130 09/23/2019 1753
LOQ = Limit of Quantitation
DL = Detection Limit
LOD = Limit of Detection
P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
J = Estimated result < LOQ and > DL + = RPD is out of criteria
ND = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 26 of 46
QC Data for Lot Number: U112065

Inorganic non-metals - MSD
Sample ID: U112065-001MD
Matrix: Solid
Batch: 29563
Prep Method: 3060A
Analytical Method: 7199
Prep Date: 09/20/2019 1522
Sample
Spike
Amount
Amount
Result % Rec % RPD
Parameter
(mg/kg)
(mg/kg)
(mg/kg) Q Dil % Rec % RPD Limit Limit Analysis Date
Hexavalent Chromium
0.57
12
10 1 83 3.5 70-130 20 09/23/2019 1806
LOQ = Limit of Quantitation
DL = Detection Limit
LOD = Limit of Detection
P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
J = Estimated result < LOQ and > DL + = RPD is out of criteria
ND = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 27 of 46
QC Data for Lot Number: U112065

Volatile Organic Compounds by GC/MS - MB
Sample ID: UQ29150-001 Matrix: Solid
Batch: 29150 Prep Method: 5035
Analytical Method: 8260D
Parameter
Result Q
Dil
LOQ
DL
Units
Analysis Date
Benzene
ND
1
0.0050
0.0020
mg/kg
09/17/2019 1231
Bromodichloromethane
ND
1
0.0050
0.0020
mg/kg
09/17/2019 1231
Bromoform
ND
1
0.0050
0.0020
mg/kg
09/17/2019 1231
Bromomethane (Methyl bromide)
ND
1
0.0050
0.0030
mg/kg
09/17/2019 1231
2-Butanone (MEK)
ND
1
0.020
0.0040
mg/kg
09/17/2019 1231
Carbon disulfide
ND
1
0.0050
0.0020
mg/kg
09/17/2019 1231
Carbon tetrachloride
ND
1
0.0050
0.0020
mg/kg
09/17/2019 1231
Chlorobenzene
ND
1
0.0050
0.0020
mg/kg
09/17/2019 1231
Chloroethane
ND
1
0.0050
0.0020
mg/kg
09/17/2019 1231
Chloroform
ND
1
0.0050
0.0020
mg/kg
09/17/2019 1231
Chloromethane (Methyl chloride)
ND
1
0.0050
0.0030
mg/kg
09/17/2019 1231
Cyclohexane
ND
1
0.0050
0.0020
mg/kg
09/17/2019 1231
1,2-Dibromo-3-chloropropane (DBCP)
ND
1
0.0050
0.0020
mg/kg
09/17/2019 1231
Dibromochloromethane
ND
1
0.0050
0.0020
mg/kg
09/17/2019 1231
1,2-Dibromoethane (EDB)
ND
1
0.0050
0.0020
mg/kg
09/17/2019 1231
1,2-Dichlorobenzene
ND
1
0.0050
0.0020
mg/kg
09/17/2019 1231
1,3-Dichlorobenzene
ND
1
0.0050
0.0020
mg/kg
09/17/2019 1231
1,4-Dichlorobenzene
ND
1
0.0050
0.0020
mg/kg
09/17/2019 1231
Dichlorodifluoromethane
ND
1
0.0050
0.0030
mg/kg
09/17/2019 1231
1,1-Dichloroethane
ND
1
0.0050
0.0020
mg/kg
09/17/2019 1231
1,2-Dichloroethane
ND
1
0.0050
0.0020
mg/kg
09/17/2019 1231
1,1-Dichloroethene
ND
1
0.0050
0.0020
mg/kg
09/17/2019 1231
cis- 1,2-Dichloroethene
ND
1
0.0050
0.0020
mg/kg
09/17/2019 1231
trans- 1,2-Dichloroethene
ND
1
0.0050
0.0020
mg/kg
09/17/2019 1231
1,2-Dichloropropane
ND
1
0.0050
0.0020
mg/kg
09/17/2019 1231
cis- 1,3-Dichloropropene
ND
1
0.0050
0.0020
mg/kg
09/17/2019 1231
trans- 1,3-Dichloropropene
ND
1
0.0050
0.0020
mg/kg
09/17/2019 1231
Ethylbenzene
ND
1
0.0050
0.0020
mg/kg
09/17/2019 1231
2-Hexanone
ND
1
0.010
0.0040
mg/kg
09/17/2019 1231
Isopropylbenzene
ND
1
0.0050
0.0020
mg/kg
09/17/2019 1231
Methyl acetate
ND
1
0.0050
0.0020
mg/kg
09/17/2019 1231
Methyl tertiary butyl ether (MTBE)
ND
1
0.0050
0.0020
mg/kg
09/17/2019 1231
4-Methyl-2-pentanone
ND
1
0.010
0.0040
mg/kg
09/17/2019 1231
Methylcyclohexane
ND
1
0.0050
0.0020
mg/kg
09/17/2019 1231
Methylene chloride
ND
1
0.0050
0.0020
mg/kg
09/17/2019 1231
Styrene
ND
1
0.0050
0.0020
mg/kg
09/17/2019 1231
1,1,2,2-Tetrachloroethane
ND
1
0.0050
0.0020
mg/kg
09/17/2019 1231
Tetrachloroethene
ND
1
0.0050
0.0020
mg/kg
09/17/2019 1231
Toluene
ND
1
0.0050
0.0020
mg/kg
09/17/2019 1231
1,1,2-Trichloro-1,2,2-Trifluoroethane
ND
1
0.0050
0.0020
mg/kg
09/17/2019 1231
1,2,4-Trichlorobenzene
ND
1
0.0050
0.0020
mg/kg
09/17/2019 1231
1,1,1-Trichloroethane
ND
1
0.0050
0.0020
mg/kg
09/17/2019 1231
1,1,2-Trichloroethane
ND
1
0.0050
0.0020
mg/kg
09/17/2019 1231
Trichloroethene
ND
1
0.0050
0.0020
mg/kg
09/17/2019 1231
LOQ = Limit of Quantitation
DL = Detection Limit
LOD = Limit of Detection
P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
J = Estimated result < LOQ and > DL + = RPD is out of criteria
ND = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 28 of 46
QC Data for Lot Number: U112065

Volatile Organic Compounds by GC/MS - MB
Sample ID: UQ29150-001 Matrix: Solid
Batch: 29150 Prep Method: 5035
Analytical Method: 8260D
Parameter
Result
Q Dil
LOQ
DL
Units
Analysis Date
Trichlorofluoromethane
ND
1
0.0050
0.0020
mg/kg
09/17/2019 1231
Vinyl chloride
ND
1
0.0050
0.0030
mg/kg
09/17/2019 1231
Xylenes (total)
ND
1
0.010
0.0040
mg/kg
09/17/2019 1231
Surrogate
Q % Rec
Acceptance
Limit
Bromofluorobenzene 112 47-138
1,2-Dichloroethane-d4 100 53-142
Toluene-d8 111 68-124
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 ND = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: U112065
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 29 of 46

Volatile Organic Compounds by GC/MS - LCS
Sample ID: UQ29150-002
Matrix:
Solid
Batch: 29150
Prep Method:
5035
Analytical Method: 8260D
Spike
Amount
Result
% Rec
Parameter
(mg/kg)
(mg/kg)
Q Dil
% Rec
Limit
Analysis Date
Benzene
0.050
0.055
1
109
70-130
09/17/2019 1021
Bromodichloromethane
0.050
0.053
1
107
70-130
09/17/2019 1021
Bromoform
0.050
0.052
1
103
70-130
09/17/2019 1021
Bromomethane (Methyl bromide)
0.050
0.056
1
111
70-130
09/17/2019 1021
2-Butanone (MEK)
0.10
0.11
1
110
60-140
09/17/2019 1021
Carbon disulfide
0.050
0.057
1
113
70-130
09/17/2019 1021
Carbon tetrachloride
0.050
0.056
1
112
70-130
09/17/2019 1021
Chlorobenzene
0.050
0.054
1
107
70-130
09/17/2019 1021
Chloroethane
0.050
0.055
1
109
70-130
09/17/2019 1021
Chloroform
0.050
0.054
1
108
70-130
09/17/2019 1021
Chloromethane (Methyl chloride)
0.050
0.054
1
108
60-140
09/17/2019 1021
Cyclohexane
0.050
0.057
1
114
70-130
09/17/2019 1021
1,2-Dibromo-3-chloropropane (DBCP)
0.050
0.049
1
97
70-130
09/17/2019 1021
Dibromochloromethane
0.050
0.053
1
105
70-130
09/17/2019 1021
1,2-Dibromoethane (EDB)
0.050
0.052
1
104
70-130
09/17/2019 1021
1,2-Dichlorobenzene
0.050
0.053
1
106
70-130
09/17/2019 1021
1,3-Dichlorobenzene
0.050
0.054
1
109
70-130
09/17/2019 1021
1,4-Dichlorobenzene
0.050
0.053
1
106
70-130
09/17/2019 1021
Dichlorodifluoromethane
0.050
0.059
1
119
60-140
09/17/2019 1021
1,1-Dichloroethane
0.050
0.054
1
108
70-130
09/17/2019 1021
1,2-Dichloroethane
0.050
0.052
1
105
70-130
09/17/2019 1021
1,1-Dichloroethene
0.050
0.057
1
115
70-130
09/17/2019 1021
cis- 1,2-Dichloroethene
0.050
0.054
1
109
70-130
09/17/2019 1021
trans- 1,2-Dichloroethene
0.050
0.056
1
112
70-130
09/17/2019 1021
1,2-Dichloropropane
0.050
0.054
1
107
70-130
09/17/2019 1021
cis- 1,3-Dichloropropene
0.050
0.055
1
110
70-130
09/17/2019 1021
trans- 1,3-Dichloropropene
0.050
0.053
1
106
70-130
09/17/2019 1021
Ethylbenzene
0.050
0.055
1
110
70-130
09/17/2019 1021
2-Hexanone
0.10
0.10
1
104
70-130
09/17/2019 1021
Isopropylbenzene
0.050
0.053
1
107
70-130
09/17/2019 1021
Methyl acetate
0.050
0.048
1
97
70-130
09/17/2019 1021
Methyl tertiary butyl ether (MTBE)
0.050
0.052
1
104
70-130
09/17/2019 1021
4-Methyl-2-pentanone
0.10
0.099
1
99
70-130
09/17/2019 1021
Methylcyclohexane
0.050
0.060
1
120
70-130
09/17/2019 1021
Methylene chloride
0.050
0.052
1
105
70-130
09/17/2019 1021
Styrene
0.050
0.055
1
109
70-130
09/17/2019 1021
1,1,2,2-Tetrachloroethane
0.050
0.048
1
96
70-130
09/17/2019 1021
Tetrachloroethene
0.050
0.056
1
112
70-130
09/17/2019 1021
Toluene
0.050
0.055
1
111
70-130
09/17/2019 1021
1,1,2-Trichloro-1,2,2-Trifluoroethane
0.050
0.059
1
118
70-130
09/17/2019 1021
1,2,4-Trichlorobenzene
0.050
0.057
1
114
70-130
09/17/2019 1021
1,1,1-Trichloroethane
0.050
0.054
1
108
70-130
09/17/2019 1021
1,1,2-Trichloroethane
0.050
0.052
1
103
70-130
09/17/2019 1021
Trichloroethene
0.050
0.056
1
111
70-130
09/17/2019 1021
LOQ = Limit of Quantitation
DL = Detection Limit
LOD = Limit of Detection
P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
J = Estimated result < LOQ and > DL + = RPD is out of criteria
ND = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 30 of 46
QC Data for Lot Number: U112065

Volatile Organic Compounds by GC/MS - LCS
Sample ID: UQ29150-002
Matrix: Solid
Batch: 29150
Prep Method: 5035
Analytical Method: 8260D
Spike
Amount
Result
% Rec
Parameter
(mg/kg)
(mg/kg) Q
Dil % Rec
Limit
Analysis Date
Trichlorofluoromethane
0.050
0.059
1 117
70-130
09/17/2019 1021
Vinyl chloride
0.050
0.056
1 112
70-130
09/17/2019 1021
Xylenes (total)
0.10
0.11
1 109
70-130
09/17/2019 1021
Acceptance
Surrogate
Q % Rec
Limit
Bromofluorobenzene 113 47-138
1,2-Dichloroethane-d4 109 53-142
Toluene-d8 113 68-124
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 ND = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: U112065
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 31 of 46

Volatile Organic Compounds by GC/MS - LCSD
Sample ID: UQ29150-003
Matrix: Solid
Batch: 29150
Prep
Method: 5035
Analytical Method: 8260D
Spike
Amount
Result
% Rec
% RPD
Parameter
(mg/kg)
(mg/kg) Q
Dil
% Rec % RPD
Limit
Limit
Analysis Date
Benzene
0.050
0.052
1
103
5.6
70-130
20
09/17/2019 1204
Bromodichloromethane
0.050
0.049
1
99
7.8
70-130
20
09/17/2019 1204
Bromoform
0.050
0.049
1
97
6.3
70-130
20
09/17/2019 1204
Bromomethane (Methyl bromide)
0.050
0.049
1
97
13
70-130
20
09/17/2019 1204
2-Butanone (MEK)
0.10
0.094
1
94
16
60-140
20
09/17/2019 1204
Carbon disulfide
0.050
0.050
1
99
13
70-130
20
09/17/2019 1204
Carbon tetrachloride
0.050
0.053
1
105
5.6
70-130
20
09/17/2019 1204
Chlorobenzene
0.050
0.051
1
102
4.5
70-130
20
09/17/2019 1204
Chloroethane
0.050
0.054
1
107
2.2
70-130
20
09/17/2019 1204
Chloroform
0.050
0.051
1
101
6.1
70-130
20
09/17/2019 1204
Chloromethane (Methyl chloride)
0.050
0.042 +
1
84
25
60-140
20
09/17/2019 1204
Cyclohexane
0.050
0.051
1
103
11
70-130
20
09/17/2019 1204
1,2-Dibromo-3-chloropropane (DBCP)
0.050
0.049
1
98
0.85
70-130
20
09/17/2019 1204
Dibromochloromethane
0.050
0.052
1
104
1.1
70-130
20
09/17/2019 1204
1,2-Dibromoethane (EDB)
0.050
0.051
1
102
1.6
70-130
20
09/17/2019 1204
1,2-Dichlorobenzene
0.050
0.051
1
102
4.0
70-130
20
09/17/2019 1204
1,3-Dichlorobenzene
0.050
0.051
1
103
5.3
70-130
20
09/17/2019 1204
1,4-Dichlorobenzene
0.050
0.050
1
101
5.1
70-130
20
09/17/2019 1204
Dichlorodifluoromethane
0.050
0.047 +
1
93
24
60-140
20
09/17/2019 1204
1,1-Dichloroethane
0.050
0.051
1
102
6.4
70-130
20
09/17/2019 1204
1,2-Dichloroethane
0.050
0.048
1
96
8.4
70-130
20
09/17/2019 1204
1,1-Dichloroethene
0.050
0.057
1
113
1.2
70-130
20
09/17/2019 1204
cis- 1,2-Dichloroethene
0.050
0.051
1
102
6.0
70-130
20
09/17/2019 1204
trans- 1,2-Dichloroethene
0.050
0.055
1
110
2.0
70-130
20
09/17/2019 1204
1,2-Dichloropropane
0.050
0.050
1
99
7.9
70-130
20
09/17/2019 1204
cis- 1,3-Dichloropropene
0.050
0.051
1
101
8.0
70-130
20
09/17/2019 1204
trans- 1,3-Dichloropropene
0.050
0.052
1
104
2.1
70-130
20
09/17/2019 1204
Ethylbenzene
0.050
0.054
1
109
0.65
70-130
20
09/17/2019 1204
2-Hexanone
0.10
0.096
1
96
8.3
70-130
20
09/17/2019 1204
Isopropylbenzene
0.050
0.055
1
110
2.5
70-130
20
09/17/2019 1204
Methyl acetate
0.050
0.056
1
113
15
70-130
20
09/17/2019 1204
Methyl tertiary butyl ether (MTBE)
0.050
0.048
1
96
8.3
70-130
20
09/17/2019 1204
4-Methyl-2-pentanone
0.10
0.095
1
95
4.2
70-130
20
09/17/2019 1204
Methylcyclohexane
0.050
0.055
1
109
9.2
70-130
20
09/17/2019 1204
Methylene chloride
0.050
0.048
1
95
9.6
70-130
20
09/17/2019 1204
Styrene
0.050
0.053
1
105
3.5
70-130
20
09/17/2019 1204
1,1,2,2-Tetrachloroethane
0.050
0.049
1
99
3.1
70-130
20
09/17/2019 1204
Tetrachloroethene
0.050
0.055
1
111
0.64
70-130
20
09/17/2019 1204
Toluene
0.050
0.053
1
106
4.7
70-130
20
09/17/2019 1204
1,1,2-Trichloro-1,2,2-Trifluoroethane
0.050
0.049
1
99
17
70-130
20
09/17/2019 1204
1,2,4-Trichlorobenzene
0.050
0.055
1
109
3.8
70-130
20
09/17/2019 1204
1,1,1-Trichloroethane
0.050
0.051
1
102
5.5
70-130
20
09/17/2019 1204
1,1,2-Trichloroethane
0.050
0.052
1
104
0.98
70-130
20
09/17/2019 1204
Trichloroethene
0.050
0.053
1
105
5.4
70-130
20
09/17/2019 1204
LOQ = Limit of Quantitation
DL = Detection Limit
LOD = Limit of Detection
P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
J = Estimated result < LOQ and > DL + = RPD is out of criteria
ND = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 32 of 46
QC Data for Lot Number: U112065

Volatile Organic Compounds by GC/MS - LCSD
Sample ID: UQ29150-003
Matrix: Solid
Batch: 29150
Prep Method: 5035
Analytical Method: 8260D
Spike
Amount
Result
% Rec
% RPD
Parameter
(mg/kg)
(mg/kg) Q
Dil % Rec % RPD
Limit
Limit
Analysis Date
Trichlorofluoromethane
0.050
0.053
1 107 9.6
70-130
20
09/17/2019 1204
Vinyl chloride
0.050
0.044 +
1 87 25
70-130
20
09/17/2019 1204
Xylenes (total)
0.10
0.11
1 108 0.75
70-130
20
09/17/2019 1204
Acceptance
Surrogate Q % Rec Limit
Bromofluorobenzene 115 47-138
1,2-Dichloroethane-d4 99 53-142
Toluene-d8 117 68-124
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 ND = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: U112065
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 33 of 46

Volatile Organic Compounds by GC/MS - MB
Sample ID: UQ29365-001 Matrix: Solid
Batch: 29365 Prep Method: 5035
Analytical Method: 8260D
Parameter
Result Q
Dil
LOQ
DL
Units
Analysis Date
Acetone
ND
1
0.020
0.0080
mg/kg
09/18/2019 2112
Benzene
ND
1
0.0050
0.0020
mg/kg
09/18/2019 2112
Bromodichloromethane
ND
1
0.0050
0.0020
mg/kg
09/18/2019 2112
Bromoform
ND
1
0.0050
0.0020
mg/kg
09/18/2019 2112
Bromomethane (Methyl bromide)
ND
1
0.0050
0.0030
mg/kg
09/18/2019 2112
2-Butanone (MEK)
ND
1
0.020
0.0040
mg/kg
09/18/2019 2112
Carbon disulfide
ND
1
0.0050
0.0020
mg/kg
09/18/2019 2112
Carbon tetrachloride
ND
1
0.0050
0.0020
mg/kg
09/18/2019 2112
Chlorobenzene
ND
1
0.0050
0.0020
mg/kg
09/18/2019 2112
Chloroethane
ND
1
0.0050
0.0020
mg/kg
09/18/2019 2112
Chloroform
ND
1
0.0050
0.0020
mg/kg
09/18/2019 2112
Chloromethane (Methyl chloride)
ND
1
0.0050
0.0030
mg/kg
09/18/2019 2112
Cyclohexane
ND
1
0.0050
0.0020
mg/kg
09/18/2019 2112
1,2-Dibromo-3-chloropropane (DBCP)
ND
1
0.0050
0.0020
mg/kg
09/18/2019 2112
Dibromochloromethane
ND
1
0.0050
0.0020
mg/kg
09/18/2019 2112
1,2-Dibromoethane (EDB)
ND
1
0.0050
0.0020
mg/kg
09/18/2019 2112
1,2-Dichlorobenzene
ND
1
0.0050
0.0020
mg/kg
09/18/2019 2112
1,3-Dichlorobenzene
ND
1
0.0050
0.0020
mg/kg
09/18/2019 2112
1,4-Dichlorobenzene
ND
1
0.0050
0.0020
mg/kg
09/18/2019 2112
Dichlorodifluoromethane
ND
1
0.0050
0.0030
mg/kg
09/18/2019 2112
1,1-Dichloroethane
ND
1
0.0050
0.0020
mg/kg
09/18/2019 2112
1,2-Dichloroethane
ND
1
0.0050
0.0020
mg/kg
09/18/2019 2112
1,1-Dichloroethene
ND
1
0.0050
0.0020
mg/kg
09/18/2019 2112
cis- 1,2-Dichloroethene
ND
1
0.0050
0.0020
mg/kg
09/18/2019 2112
trans- 1,2-Dichloroethene
ND
1
0.0050
0.0020
mg/kg
09/18/2019 2112
1,2-Dichloropropane
ND
1
0.0050
0.0020
mg/kg
09/18/2019 2112
cis- 1,3-Dichloropropene
ND
1
0.0050
0.0020
mg/kg
09/18/2019 2112
trans- 1,3-Dichloropropene
ND
1
0.0050
0.0020
mg/kg
09/18/2019 2112
Ethylbenzene
ND
1
0.0050
0.0020
mg/kg
09/18/2019 2112
2-Hexanone
ND
1
0.010
0.0040
mg/kg
09/18/2019 2112
Isopropylbenzene
ND
1
0.0050
0.0020
mg/kg
09/18/2019 2112
Methyl acetate
ND
1
0.0050
0.0020
mg/kg
09/18/2019 2112
Methyl tertiary butyl ether (MTBE)
ND
1
0.0050
0.0020
mg/kg
09/18/2019 2112
4-Methyl-2-pentanone
ND
1
0.010
0.0040
mg/kg
09/18/2019 2112
Methylcyclohexane
ND
1
0.0050
0.0020
mg/kg
09/18/2019 2112
Methylene chloride
ND
1
0.0050
0.0020
mg/kg
09/18/2019 2112
Styrene
ND
1
0.0050
0.0020
mg/kg
09/18/2019 2112
1,1,2,2-Tetrachloroethane
ND
1
0.0050
0.0020
mg/kg
09/18/2019 2112
Tetrachloroethene
ND
1
0.0050
0.0020
mg/kg
09/18/2019 2112
Toluene
ND
1
0.0050
0.0020
mg/kg
09/18/2019 2112
1,1,2-Trichloro-1,2,2-Trifluoroethane
ND
1
0.0050
0.0020
mg/kg
09/18/2019 2112
1,2,4-Trichlorobenzene
ND
1
0.0050
0.0020
mg/kg
09/18/2019 2112
1,1,1-Trichloroethane
ND
1
0.0050
0.0020
mg/kg
09/18/2019 2112
1,1,2-Trichloroethane
ND
1
0.0050
0.0020
mg/kg
09/18/2019 2112
LOQ = Limit of Quantitation
DL = Detection Limit
LOD = Limit of Detection
P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
J = Estimated result < LOQ and > DL + = RPD is out of criteria
ND = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 34 of 46
QC Data for Lot Number: U112065

Volatile Organic Compounds by GC/MS - MB
Sample ID: UQ29365-001 Matrix: Solid
Batch: 29365 Prep Method: 5035
Analytical Method: 8260D
Parameter
Result Q
Dil
LOQ
DL
Units
Analysis Date
Trichloroethene
ND
1
0.0050
0.0020
mg/kg
09/18/2019 2112
Trichlorofluoromethane
ND
1
0.0050
0.0020
mg/kg
09/18/2019 2112
Vinyl chloride
ND
1
0.0050
0.0030
mg/kg
09/18/2019 2112
Xylenes (total)
ND
1
0.010
0.0040
mg/kg
09/18/2019 2112
Acceptance
Surrogate Q % Rec Limit
Bromofluorobenzene 100 47-138
1,2-Dichloroethane-d4 99 53-142
Toluene-d8 109 68-124
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 ND = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: U112065
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 35 of 46

Volatile Organic Compounds by GC/MS - LCS
Sample ID: UQ29365-002
Matrix:
Solid
Batch: 29365
Prep Method:
5035
Analytical Method: 8260D
Spike
Amount
Result
% Rec
Parameter
(mg/kg)
(mg/kg)
Q Dil
% Rec
Limit
Analysis Date
Acetone
0.10
0.078
1
78
60-140
09/18/2019 2014
Benzene
0.050
0.051
1
103
70-130
09/18/2019 2014
Bromodichloromethane
0.050
0.048
1
96
70-130
09/18/2019 2014
Bromoform
0.050
0.046
1
93
70-130
09/18/2019 2014
Bromomethane (Methyl bromide)
0.050
0.054
1
109
70-130
09/18/2019 2014
2-Butanone (MEK)
0.10
0.082
1
82
60-140
09/18/2019 2014
Carbon disulfide
0.050
0.054
1
108
70-130
09/18/2019 2014
Carbon tetrachloride
0.050
0.053
1
106
70-130
09/18/2019 2014
Chlorobenzene
0.050
0.050
1
100
70-130
09/18/2019 2014
Chloroethane
0.050
0.058
1
115
70-130
09/18/2019 2014
Chloroform
0.050
0.050
1
101
70-130
09/18/2019 2014
Chloromethane (Methyl chloride)
0.050
0.054
1
108
60-140
09/18/2019 2014
Cyclohexane
0.050
0.052
1
104
70-130
09/18/2019 2014
1,2-Dibromo-3-chloropropane (DBCP)
0.050
0.046
1
93
70-130
09/18/2019 2014
Dibromochloromethane
0.050
0.049
1
98
70-130
09/18/2019 2014
1,2-Dibromoethane (EDB)
0.050
0.049
1
98
70-130
09/18/2019 2014
1,2-Dichlorobenzene
0.050
0.049
1
98
70-130
09/18/2019 2014
1,3-Dichlorobenzene
0.050
0.051
1
102
70-130
09/18/2019 2014
1,4-Dichlorobenzene
0.050
0.049
1
99
70-130
09/18/2019 2014
Dichlorodifluoromethane
0.050
0.062
1
125
60-140
09/18/2019 2014
1,1-Dichloroethane
0.050
0.051
1
102
70-130
09/18/2019 2014
1,2-Dichloroethane
0.050
0.048
1
97
70-130
09/18/2019 2014
1,1-Dichloroethene
0.050
0.058
1
116
70-130
09/18/2019 2014
cis- 1,2-Dichloroethene
0.050
0.051
1
101
70-130
09/18/2019 2014
trans- 1,2-Dichloroethene
0.050
0.055
1
109
70-130
09/18/2019 2014
1,2-Dichloropropane
0.050
0.049
1
98
70-130
09/18/2019 2014
cis- 1,3-Dichloropropene
0.050
0.049
1
98
70-130
09/18/2019 2014
trans- 1,3-Dichloropropene
0.050
0.049
1
97
70-130
09/18/2019 2014
Ethylbenzene
0.050
0.053
1
106
70-130
09/18/2019 2014
2-Hexanone
0.10
0.085
1
85
70-130
09/18/2019 2014
Isopropylbenzene
0.050
0.053
1
107
70-130
09/18/2019 2014
Methyl acetate
0.050
0.051
1
102
70-130
09/18/2019 2014
Methyl tertiary butyl ether (MTBE)
0.050
0.047
1
95
70-130
09/18/2019 2014
4-Methyl-2-pentanone
0.10
0.090
1
90
70-130
09/18/2019 2014
Methylcyclohexane
0.050
0.052
1
104
70-130
09/18/2019 2014
Methylene chloride
0.050
0.047
1
94
70-130
09/18/2019 2014
Styrene
0.050
0.051
1
102
70-130
09/18/2019 2014
1,1,2,2-Tetrachloroethane
0.050
0.048
1
96
70-130
09/18/2019 2014
Tetrachloroethene
0.050
0.053
1
105
70-130
09/18/2019 2014
Toluene
0.050
0.051
1
102
70-130
09/18/2019 2014
1,1,2-Trichloro-1,2,2-Trifluoroethane
0.050
0.051
1
103
70-130
09/18/2019 2014
1,2,4-Trichlorobenzene
0.050
0.052
1
103
70-130
09/18/2019 2014
1,1,1-Trichloroethane
0.050
0.051
1
102
70-130
09/18/2019 2014
1,1,2-Trichloroethane
0.050
0.049
1
98
70-130
09/18/2019 2014
LOQ = Limit of Quantitation
DL = Detection Limit
LOD = Limit of Detection
P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
J = Estimated result < LOQ and > DL + = RPD is out of criteria
ND = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 36 of 46
QC Data for Lot Number: U112065

Volatile Organic Compounds by GC/MS - LCS
Sample ID: UQ29365-002
Matrix:
Solid
Batch: 29365
Prep Method:
5035
Analytical Method: 8260D
Spike
Amount
Result
% Rec
Parameter
(mg/kg)
(mg/kg) Q
Dil
% Rec
Limit
Analysis Date
Trichloroethene
0.050
0.049
1
98
70-130
09/18/2019 2014
Trichlorofluoromethane
0.050
0.056
1
112
70-130
09/18/2019 2014
Vinyl chloride
0.050
0.052
1
105
70-130
09/18/2019 2014
Xylenes (total)
0.10
0.10
1
105
70-130
09/18/2019 2014
Acceptance
Surrogate
Q % Rec
Limit
Bromofluorobenzene 100 47-138
1,2-Dichloroethane-d4 97 53-142
Toluene-d8 108 68-124
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 ND = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: U112065
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 37 of 46

Volatile Organic Compounds by GC/MS - LCSD
Sample ID: UQ29365-003
Matrix: Solid
Batch: 29365
Prep
Method: 5035
Analytical Method: 8260D
Spike
Amount
Result
% Rec
% RPD
Parameter
(mg/kg)
(mg/kg) Q
Dil
% Rec % RPD
Limit
Limit
Analysis Date
Acetone
0.10
0.080
1
80
2.7
60-140
20
09/18/2019 2050
Benzene
0.050
0.049
1
99
3.8
70-130
20
09/18/2019 2050
Bromodichloromethane
0.050
0.047
1
94
2.6
70-130
20
09/18/2019 2050
Bromoform
0.050
0.046
1
93
0.27
70-130
20
09/18/2019 2050
Bromomethane (Methyl bromide)
0.050
0.051
1
102
6.5
70-130
20
09/18/2019 2050
2-Butanone (MEK)
0.10
0.082
1
82
0.65
60-140
20
09/18/2019 2050
Carbon disulfide
0.050
0.050
1
100
8.1
70-130
20
09/18/2019 2050
Carbon tetrachloride
0.050
0.049
1
98
8.2
70-130
20
09/18/2019 2050
Chlorobenzene
0.050
0.048
1
97
3.1
70-130
20
09/18/2019 2050
Chloroethane
0.050
0.055
1
109
5.1
70-130
20
09/18/2019 2050
Chloroform
0.050
0.048
1
96
4.9
70-130
20
09/18/2019 2050
Chloromethane (Methyl chloride)
0.050
0.052
1
103
4.8
60-140
20
09/18/2019 2050
Cyclohexane
0.050
0.048
1
95
8.8
70-130
20
09/18/2019 2050
1,2-Dibromo-3-chloropropane (DBCP)
0.050
0.047
1
95
2.2
70-130
20
09/18/2019 2050
Dibromochloromethane
0.050
0.048
1
96
2.1
70-130
20
09/18/2019 2050
1,2-Dibromoethane (EDB)
0.050
0.049
1
98
0.69
70-130
20
09/18/2019 2050
1,2-Dichlorobenzene
0.050
0.048
1
96
1.7
70-130
20
09/18/2019 2050
1,3-Dichlorobenzene
0.050
0.048
1
96
5.6
70-130
20
09/18/2019 2050
1,4-Dichlorobenzene
0.050
0.047
1
94
4.2
70-130
20
09/18/2019 2050
Dichlorodifluoromethane
0.050
0.057
1
115
8.4
60-140
20
09/18/2019 2050
1,1-Dichloroethane
0.050
0.048
1
97
4.9
70-130
20
09/18/2019 2050
1,2-Dichloroethane
0.050
0.047
1
95
2.2
70-130
20
09/18/2019 2050
1,1-Dichloroethene
0.050
0.053
1
107
8.1
70-130
20
09/18/2019 2050
cis- 1,2-Dichloroethene
0.050
0.048
1
96
5.8
70-130
20
09/18/2019 2050
trans- 1,2-Dichloroethene
0.050
0.051
1
101
7.2
70-130
20
09/18/2019 2050
1,2-Dichloropropane
0.050
0.048
1
96
1.9
70-130
20
09/18/2019 2050
cis- 1,3-Dichloropropene
0.050
0.047
1
94
3.8
70-130
20
09/18/2019 2050
trans- 1,3-Dichloropropene
0.050
0.048
1
96
1.1
70-130
20
09/18/2019 2050
Ethylbenzene
0.050
0.050
1
100
6.0
70-130
20
09/18/2019 2050
2-Hexanone
0.10
0.085
1
85
0.53
70-130
20
09/18/2019 2050
Isopropylbenzene
0.050
0.051
1
102
4.5
70-130
20
09/18/2019 2050
Methyl acetate
0.050
0.052
1
104
1.9
70-130
20
09/18/2019 2050
Methyl tertiary butyl ether (MTBE)
0.050
0.046
1
91
3.8
70-130
20
09/18/2019 2050
4-Methyl-2-pentanone
0.10
0.089
1
89
1.9
70-130
20
09/18/2019 2050
Methylcyclohexane
0.050
0.048
1
96
8.0
70-130
20
09/18/2019 2050
Methylene chloride
0.050
0.045
1
90
3.9
70-130
20
09/18/2019 2050
Styrene
0.050
0.049
1
97
4.4
70-130
20
09/18/2019 2050
1,1,2,2-Tetrachloroethane
0.050
0.048
1
96
0.14
70-130
20
09/18/2019 2050
Tetrachloroethene
0.050
0.050
1
101
4.4
70-130
20
09/18/2019 2050
Toluene
0.050
0.050
1
99
2.9
70-130
20
09/18/2019 2050
1,1,2-Trichloro-1,2,2-Trifluoroethane
0.050
0.048
1
95
7.7
70-130
20
09/18/2019 2050
1,2,4-Trichlorobenzene
0.050
0.050
1
99
3.8
70-130
20
09/18/2019 2050
1,1,1-Trichloroethane
0.050
0.048
1
95
6.7
70-130
20
09/18/2019 2050
1,1,2-Trichloroethane
0.050
0.049
1
98
0.16
70-130
20
09/18/2019 2050
LOQ = Limit of Quantitation
DL = Detection Limit
LOD = Limit of Detection
P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
J = Estimated result < LOQ and > DL + = RPD is out of criteria
ND = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 38 of 46
QC Data for Lot Number: U112065

Volatile Organic Compounds by GC/MS - LCSD
Sample ID: UQ29365-003
Matrix: Solid
Batch: 29365
Prep
Method: 5035
Analytical Method: 8260D
Spike
Amount
Result
% Rec
% RPD
Parameter
(mg/kg)
(mg/kg) Q
Dil
% Rec % RPD
Limit
Limit
Analysis Date
Trichloroethene
0.050
0.047
1
93
5.0
70-130
20
09/18/2019 2050
Trichlorofluoromethane
0.050
0.051
1
102
9.0
70-130
20
09/18/2019 2050
Vinyl chloride
0.050
0.049
1
98
6.6
70-130
20
09/18/2019 2050
Xylenes (total)
0.10
0.099
1
99
5.3
70-130
20
09/18/2019 2050
Acceptance
Surrogate
Q % Rec
Limit
Bromofluorobenzene 103 47-138
1,2-Dichloroethane-d4 99 53-142
Toluene-d8 110 68-124
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 ND = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: U112065
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 39 of 46

RCRA Metals - MB
Sample ID: UQ28845-001 Matrix: Solid
Batch: 28845 Prep Method: 3050E
Analytical Method: 6010D Prep Date: 09/17/2019 939
Parameter
Result Q
Dil
LOQ
DL
Units
Analysis Date
Arsenic
ND
1
0.75
0.25
mg/kg
09/17/2019 2313
Barium
ND
1
1.3
0.33
mg/kg
09/17/2019 2313
Cadmium
ND
1
0.25
0.063
mg/kg
09/17/2019 2313
Chromium
ND
1
0.50
0.13
mg/kg
09/17/2019 2313
Lead
ND
1
0.50
0.23
mg/kg
09/17/2019 2313
Selenium
ND
1
1.0
0.41
mg/kg
09/17/2019 2313
Silver
ND
1
0.50
0.13
mg/kg
09/17/2019 2313
LOQ = Limit of Quantitation
DL = Detection Limit
LOD = Limit of Detection
P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
J = Estimated result < LOQ and > DL + = RPD is out of criteria
ND = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 40 of 46
QC Data for Lot Number: U112065

RCRA Metals - LCS
Sample ID: UQ28845-002
Matrix: Solid
Batch: 28845
Prep Method: 3050E
Analytical Method: 6010D
Prep Date: 09/17/2019 939
Spike
Amount
Result
% Rec
Parameter
(mg/kg)
(mg/kg)
Q Dil % Rec
Limit
Analysis Date
Arsenic
250
270
1 107
80-120
09/17/2019 2319
Barium
500
510
1 102
80-120
09/17/2019 2319
Cadmium
50
49
1 99
80-120
09/17/2019 2319
Chromium
250
250
1 102
80-120
09/17/2019 2319
Lead
250
260
1 104
80-120
09/17/2019 2319
Selenium
50
52
1 103
80-120
09/17/2019 2319
Silver
50
48
1 96
80-120
09/17/2019 2319
LOQ = Limit of Quantitation
DL = Detection Limit
LOD = Limit of Detection
P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
J = Estimated result < LOQ and > DL + = RPD is out of criteria
ND = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 41 of 46
QC Data for Lot Number: U112065

RCRA Metals - MB
Sample ID: UQ28854-001 Matrix: Solid
Batch: 28854 Prep Method: 7471 B
Analytical Method: 7471 B Prep Date: 09/17/2019 1219
Parameter Result Q Dil LOQ DL Units Analysis Date
Mercury ND 1 0.083 0.020 mg/kg 09/17/20191526
LOQ = Limit of Quantitation
DL = Detection Limit
LOD = Limit of Detection
P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
J = Estimated result < LOQ and > DL + = RPD is out of criteria
ND = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 42 of 46
QC Data for Lot Number: U112065

RCRA Metals - LCS
Sample ID: UQ28854-002 Matrix: Solid
Batch: 28854 Prep Method: 7471 B
Analytical Method: 7471 B Prep Date: 09/17/2019 1219
Spike
Amount Result % Rec
Parameter (mg/kg) (mg/kg) Q Dil % Rec Limit Analysis Date
Mercury 0.83 0.79 1 95 80-120 09/17/20191528
LOQ = Limit of Quantitation
DL = Detection Limit
LOD = Limit of Detection
P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
J = Estimated result < LOQ and > DL + = RPD is out of criteria
ND = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 43 of 46
QC Data for Lot Number: U112065

Chain of Custody
and
Miscellaneous Documents
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 44 of 46

SHEALY ENVIRONMENTAL SERVICES, INC.
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Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 45 of 46

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9. Wag uallaetion data & time bswd on all suunplc contains ?
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I0- Did all connilier Iabcl iufonnadoa (ID, dot- time) agree withh the -12 IC?
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Sampler&) NA
were received inc*rmllypremcd aid wzft adjut t:j accordingly
in S mplc rcxjTjjjg with NA ml.of eirde unc- MISO4, IINl73, T40, NaC7fI tlsinZ SR # NA
iaw uCpreservatinn
NA If more than one presemalive is aaa&d, please note in the c.nmyomts Wow-
Sample(s) drip Blank (2) were received with bubbles �-6 mm in dia,nctcr
' amples(sj NA
were recajv6d with TIC > 0.5 rag I . (if #19 is rro) wcac
adj Loted wL;cxudlaigi}' in sample r=cjjhjg u7th We ium titriosuifate %vith Shekly [(}: NA
SRbar:gdclabels appliedhy; BMC Daic: 09,'17j19
C0nr7C91t5;
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 46 of 46

aceAnalXical o ANALYTICAL REPORT
National Center for Testing & Innovation September 17, 2019
-1r
Terracon - Raleigh, NC
Sample Delivery Group: L1138762
Samples Received: 09/12/2019
Project Number: 70197536
Description: Piedmont Metalworks Building LSI
Report To: Analee Farrell
2401 Brentwood Rd
Ste 107
Raleigh, NC 27604
Entire Report Reviewed By: 4�41
Heather J Wagner
Project Manager
Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be
reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace
Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and
ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided,
and as the samples are received.
41
r f
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
Terracon - Raleigh, NC 70197536 L1138762 09/17/19 17:37 1 of 21

TABLE OF CONTENTS ONE LAB. NATIONWIDE.
Cp: Cover Page
1
Fn
Tc: Table of Contents
2
Ss: Sample Summary
3
Cn: Case Narrative
4
Sr: Sample Results
5
FS
SV-01 L1138762-01
5
[Cn]
SV-02 L1138762-02
7
SV-03 L1138762-03
9
Fr
SV-04 L1138762-04
11
SV-05 L1138762-05
13
RC
Qc: Quality Control Summary
15
GI
Volatile Organic Compounds (MS) by Method TO-15
15
GI: Glossary of Terms
19
rAl
Al: Accreditations & Locations
20
Sc: Sample Chain of Custody
21
FSC
ACCOUNT: PROJECT: SDG:
DATE/TIME:
PAGE:
Terracon - Raleigh, NC 70197536 L1138762
09/17/19 17:37
2 of 21

SAMPLE
SUMMARY
ONE LAB. NATIONWIDE.
Collected by
Collected date/time
Received date/time
SV-01 L1138762-01 Air
Ana Farrell
09/11/1912:20
09/12/19 08:45
FP1
Method
Batch
Dilution
Preparation
Analysis
Analyst Location
date/time
date/time
FTC
Volatile Organic Compounds (MS) by Method TO-15
WG1346149
1
09/15/19 21:16
09/15/19 21:16
MBF Mt. Juliet, TN
Collected by
Collected date/time
Received date/time
M
SV-02 L1138762-02 Air
Ana Farrell
09/11/1913:32
09/12/19 08:45
Method
Batch
Dilution
Preparation
Analysis
Analyst Location
[Cn]
date/time
date/time
Organic Compounds (MS) by Method TO-15
WG1346149
1
09/15/19 21:53
09/15/19 21:53
MBF Mt. Juliet, TN
FSrVolatile
Collected by
Collected date/time
Received date/time
6QC
SV-03 L1138762-03 Air
Ana Farrell
09/11/1914:54
09/12/19 08:45
Method
Batch
Dilution
Preparation
Analysis
Analyst Location
GI
date/time
date/time
Volatile Organic Compounds (MS) by Method TO-15
WG1346149
1
09/15/19 22:30
09/15/19 22:30
MBF Mt. Juliet, TN
FAI
Collected by
Collected date/time
Received date/time
SV-04 L1138762-04 Air
Ana Farrell
09/11/1915:44
09/12/19 08:45
FSC
Method
Batch
Dilution
Preparation
Analysis
Analyst Location
date/time
date/time
Volatile Organic Compounds (MS) by Method TO-15
WG1346149
1
09/15/19 23:07
09/15/19 23:07
MBF Mt. Juliet, TN
Collected by
Collected date/time
Received date/time
SV-05 L1138762-05 Air
Ana Farrell
09/11/1916:32
09/12/19 08:45
Method
Batch
Dilution
Preparation
Analysis
Analyst Location
date/time
date/time
Volatile Organic Compounds (MS) by Method TO-15
WG1346149
1
09/15/19 23:44
09/15/19 23:44
MBF Mt. Juliet, TN
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
Terracon - Raleigh, NC 70197536 L1138762 09/17/19 17:37 3 of 21

CASE NARRATIVE
ONE LAB. NATIONWIDE.
FP1
All sample aliquots were received at the correct temperature, in the proper containers, with the
appropriate preservatives, and within method specified holding times, unless qualified or notated within
the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples
FTChave
been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control
are within established criteria except where addressed in this case narrative, a non-conformance form
or properly qualified within the sample results. By my digital signature below, I affirm to the best of my
FSS
knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the
quality of the data have been identified by the laboratory, and no information or data have been
knowingly withheld that would affect the quality of the data.
FSr
FC-1
4�j
�GI
Heather J Wagner
Project Manager
FAI
FSC
ACCOUNT: PROJECT: SDG: DATE/TIME:
PAGE:
Terracon - Raleigh, NC 70197536 L1138762 09/17/19 17:37
4 of 21

SV-01 SAMPLE RESULTS - 01 ONE LAB. NATIONWIDE.
Collected date/time: 09/11/19 12:20 L1138762
Volatile Organic Compounds (MS) by Method TO-15
CAS #
Mol. Wt.
RDL1
RDL2
Result
Result
Qualifier Dilution Batch
Analyte
ppbv
ug/m3
ppbv
ug/m3
Acetone
67-64-1
58.10
1.25
2.97
7.01
16.7
1 WG1346149
Allyl chloride
107-05-1
76.53
0.200
0.626
ND
ND
1 WG1346149
Benzene
71-43-2
78.10
0.200
0.639
ND
ND
1 WG1346149
Benzyl Chloride
100-44-7
127
0.200
1.04
ND
ND
1 WG1346149
Bromodichloromethane
75-27-4
164
0.200
1.34
ND
ND
1 WG1346149
Bromoform
75-25-2
253
0.600
6.21
ND
ND
1 WG1346149
Bromomethane
74-83-9
94.90
0.200
0.776
ND
ND
1 WG1346149
1,3-Butadiene
106-99-0
54.10
2.00
4.43
ND
ND
1 WG1346149
Carbon disulfide
75-15-0
76.10
0.200
0.622
ND
ND
1 WG1346149
Carbon tetrachloride
56-23-5
154
0.200
1.26
ND
ND
1 WG1346149
Chlorobenzene
108-90-7
113
0.200
0.924
ND
ND
1 WG1346149
Chloroethane
75-00-3
64.50
0.200
0.528
ND
ND
1 WG1346149
Chloroform
67-66-3
119
0.200
0.973
ND
ND
1 WG1346149
Chloromethane
74-87-3
50.50
0.200
0.413
ND
ND
1 WG1346149
2-Chlorotoluene
95-49-8
126
0.200
1.03
ND
ND
1 WG1346149
Cyclohexane
110-82-7
84.20
0.200
0.689
ND
ND
1 WG1346149
Dibromochloromethane
124-48-1
208
0.200
1.70
ND
ND
1 WG1346149
1,2-Dibromoethane
106-93-4
188
0.200
1.54
ND
ND
1 WG1346149
1,2-Dichlorobenzene
95-50-1
147
0.200
1.20
ND
ND
1 WG1346149
1,3-Dichlorobenzene
541-73-1
147
0.200
1.20
ND
ND
1 WG1346149
1,4-Dichlorobenzene
106-46-7
147
0.200
1.20
ND
ND
1 WG1346149
1,2-Dichloroethane
107-06-2
99
0.200
0.810
ND
ND
1 WG1346149
1,1-Dichloroethane
75-34-3
98
0.200
0.802
ND
ND
1 WG1346149
1,1-Dichloroethene
75-35-4
96.90
0.200
0.793
ND
ND
1 WG1346149
cis-1,2-Dichloroethene
156-59-2
96.90
0.200
0.793
ND
ND
1 WG1346149
trans-1,2-Dichloroethene
156-60-5
96.90
0.200
0.793
ND
ND
1 WG1346149
1,2-Dichloropropane
78-87-5
113
0.200
0.924
ND
ND
1 WG1346149
cis-1,3-Dichloropropene
10061-01-5
111
0.200
0.908
ND
ND
1 WG1346149
trans-1,3-Dichloropropene
10061-02-6
111
0.200
0.908
ND
ND
1 WG1346149
1,4-Dioxane
123-91-1
88.10
0.200
0.721
ND
ND
1 WG1346149
Ethanol
64-17-5
46.10
0.630
1.19
8.49
16.0
1 WG1346149
Ethylbenzene
100-41-4
106
0.200
0.867
ND
ND
1 WG1346149
4-Ethyltoluene
622-96-8
120
0.200
0.982
ND
ND
1 WG1346149
Trichlorofluoromethane
75-69-4
137.40
0.200
1.12
0.336
1.89
1 WG1346149
Dichlorodifluoromethane
75-71-8
120.92
0.200
0.989
0.495
2.45
1 WG1346149
1,1,2-Trichlorotrifluoroethane
76-13-1
187.40
0.200
1.53
ND
ND
1 WG1346149
1,2-Dichlorotetrafluoroethane
76-14-2
171
0.200
1.40
ND
ND
1 WG1346149
Heptane
142-82-5
100
0.200
0.818
ND
ND
1 WG1346149
Hexachloro-1,3-butadiene
87-68-3
261
0.630
6.73
ND
ND
1 WG1346149
n-Hexane
110-54-3
86.20
0.200
0.705
ND
ND
1 WG1346149
Isopropylbenzene
98-82-8
120.20
0.200
0.983
ND
ND
1 WG1346149
Methylene Chloride
75-09-2
84.90
0.200
0.694
0.218
0.756
B 1 WG1346149
Methyl Butyl Ketone
591-78-6
100
1.25
5.11
ND
ND
1 WG1346149
2-Butanone (MEK)
78-93-3
72.10
1.25
3.69
ND
ND
1 WG1346149
4-Methyl-2-pentanone (MIBK)
108-10-1
100.10
1.25
5.12
ND
ND
1 WG1346149
Methyl methacrylate
80-62-6
100.12
0.200
0.819
ND
ND
1 WG1346149
MTBE
1634-04-4
88.10
0.200
0.721
ND
ND
1 WG1346149
Naphthalene
91-20-3
128
0.630
3.30
ND
ND
1 WG1346149
2-Propanol
67-63-0
60.10
1.25
3.07
5.62
13.8
1 WG1346149
Propene
115-07-1
42.10
0.400
0.689
ND
ND
1 WG1346149
Styrene
100-42-5
104
0.200
0.851
ND
ND
1 WG1346149
1,1,2,2-Tetrachloroethane
79-34-5
168
0.200
1.37
ND
ND
1 WG1346149
Tetrachloroethylene
127-18-4
166
0.200
1.36
ND
ND
1 WG1346149
Tetrahydrofuran
109-99-9
72.10
0.200
0.590
ND
ND
1 WG1346149
Toluene
108-88-3
92.10
0.200
0.753
0.224
0.844
1 WG1346149
1,2,4-Trichlorobenzene
120-82-1
181
0.630
4.66
ND
ND
1 WG1346149
ACCOUNT:
PROJECT:
SDG:
DATE/TIME: PAGE:
Terracon -
Raleigh, NC
70197536
L1138762
09/17/19 17:37 5 of 21
FP1
FTc
FSS
4
Cn
Rc
F ql
FAI
FSC

ONE LAB. NATIONWIDE.
SV-01 SAMPLE RESULTS - 01
Collected date/time: 09/11/19 12:20 L1138762
Volatile Organic Compounds (MS) by Method TO-15
CAS #
Mol. Wt.
RDL1
RDL2
Result
Result
Qualifier Dilution Batch
Analyte
ppbv
ug/m3
ppbv
ug/m3
1,1,1-Trichloroethane
71-55-6
133
0.200
1.09
ND
ND
1 WG1346149
1,1,2-Trichloroethane
79-00-5
133
0.200
1.09
ND
ND
1 WG1346149
Trichloroethylene
79-01-6
131
0.200
1.07
ND
ND
1 WG1346149
1,2,4-Trimethylbenzene
95-63-6
120
0.200
0.982
ND
ND
1 WG1346149
1,3,5-Trimethyl benzene
108-67-8
120
0.200
0.982
ND
ND
1 WG1346149
2,2,4-Trimethyl pentane
540-84-1
114.22
0.200
0.934
ND
ND
1 WG1346149
Vinyl chloride
75-01-4
62.50
0.200
0.511
ND
ND
1 WG1346149
Vinyl Bromide
593-60-2
106.95
0.200
0.875
ND
ND
1 WG1346149
Vinyl acetate
108-05-4
86.10
0.200
0.704
ND
ND
1 WG1346149
m&p-Xylene
1330-20-7
106
0.400
1.73
ND
ND
1 WG1346149
o-Xylene
95-47-6
106
0.200
0.867
ND
ND
1 WG1346149
(S)1,4-Bromof/uorobenzene
460-00-4
175
60.0-140
96.6
WG1346149
Fp
FTc
FSS
Fn
Fc
F,
FAI
FSC
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
Terracon - Raleigh, NC 70197536 L1138762 09/17/19 17:37 6 of 21

SV-02 SAMPLE RESULTS - 02 ONE LAB. NATIONWIDE.
Collected date/time: 09/11/19 13:32 L1138762
Volatile Organic Compounds (MS) by Method TO-15
CAS #
Mol. Wt.
RDL1
RDL2
Result
Result
Qualifier Dilution Batch
Analyte
ppbv
ug/m3
ppbv
ug/m3
Acetone
67-64-1
58.10
1.25
2.97
22.5
53.4
1 WG1346149
Allyl chloride
107-05-1
76.53
0.200
0.626
ND
ND
1 WG1346149
Benzene
71-43-2
78.10
0.200
0.639
ND
ND
1 WG1346149
Benzyl Chloride
100-44-7
127
0.200
1.04
ND
ND
1 WG1346149
Bromodichloromethane
75-27-4
164
0.200
1.34
ND
ND
1 WG1346149
Bromoform
75-25-2
253
0.600
6.21
ND
ND
1 WG1346149
Bromomethane
74-83-9
94.90
0.200
0.776
ND
ND
1 WG1346149
1,3-Butadiene
106-99-0
54.10
2.00
4.43
ND
ND
1 WG1346149
Carbon disulfide
75-15-0
76.10
0.200
0.622
ND
ND
1 WG1346149
Carbon tetrachloride
56-23-5
154
0.200
1.26
ND
ND
1 WG1346149
Chlorobenzene
108-90-7
113
0.200
0.924
ND
ND
1 WG1346149
Chloroethane
75-00-3
64.50
0.200
0.528
ND
ND
1 WG1346149
Chloroform
67-66-3
119
0.200
0.973
ND
ND
1 WG1346149
Chloromethane
74-87-3
50.50
0.200
0.413
ND
ND
1 WG1346149
2-Chlorotoluene
95-49-8
126
0.200
1.03
ND
ND
1 WG1346149
Cyclohexane
110-82-7
84.20
0.200
0.689
ND
ND
1 WG1346149
Dibromochloromethane
124-48-1
208
0.200
1.70
ND
ND
1 WG1346149
1,2-Dibromoethane
106-93-4
188
0.200
1.54
ND
ND
1 WG1346149
1,2-Dichlorobenzene
95-50-1
147
0.200
1.20
ND
ND
1 WG1346149
1,3-Dichlorobenzene
541-73-1
147
0.200
1.20
ND
ND
1 WG1346149
1,4-Dichlorobenzene
106-46-7
147
0.200
1.20
ND
ND
1 WG1346149
1,2-Dichloroethane
107-06-2
99
0.200
0.810
ND
ND
1 WG1346149
1,1-Dichloroethane
75-34-3
98
0.200
0.802
ND
ND
1 WG1346149
1,1-Dichloroethene
75-35-4
96.90
0.200
0.793
ND
ND
1 WG1346149
cis-1,2-Dichloroethene
156-59-2
96.90
0.200
0.793
ND
ND
1 WG1346149
trans-1,2-Dichloroethene
156-60-5
96.90
0.200
0.793
ND
ND
1 WG1346149
1,2-Dichloropropane
78-87-5
113
0.200
0.924
ND
ND
1 WG1346149
cis-1,3-Dichloropropene
10061-01-5
111
0.200
0.908
ND
ND
1 WG1346149
trans-1,3-Dichloropropene
10061-02-6
111
0.200
0.908
ND
ND
1 WG1346149
1,4-Dioxane
123-91-1
88.10
0.200
0.721
0.466
1.68
1 WG1346149
Ethanol
64-17-5
46.10
0.630
1.19
21.7
41.0
1 WG1346149
Ethylbenzene
100-41-4
106
0.200
0.867
0.693
3.00
1 WG1346149
4-Ethyltoluene
622-96-8
120
0.200
0.982
0.444
2.18
1 WG1346149
Trichlorofluoromethane
75-69-4
137.40
0.200
1.12
1.41
7.91
1 WG1346149
Dichlorodifluoromethane
75-71-8
120.92
0.200
0.989
0.647
3.20
1 WG1346149
1,1,2-Trichlorotrifluoroethane
76-13-1
187.40
0.200
1.53
ND
ND
1 WG1346149
1,2-Dichlorotetrafluoroethane
76-14-2
171
0.200
1.40
ND
ND
1 WG1346149
Heptane
142-82-5
100
0.200
0.818
0.291
1.19
1 WG1346149
Hexachloro-1,3-butadiene
87-68-3
261
0.630
6.73
ND
ND
1 WG1346149
n-Hexane
110-54-3
86.20
0.200
0.705
ND
ND
1 WG1346149
Isopropylbenzene
98-82-8
120.20
0.200
0.983
ND
ND
1 WG1346149
Methylene Chloride
75-09-2
84.90
0.200
0.694
0.337
1.17
B 1 WG1346149
Methyl Butyl Ketone
591-78-6
100
1.25
5.11
ND
ND
1 WG1346149
2-Butanone (MEK)
78-93-3
72.10
1.25
3.69
ND
ND
1 WG1346149
4-Methyl-2-pentanone (MIBK)
108-10-1
100.10
1.25
5.12
ND
ND
1 WG1346149
Methyl methacrylate
80-62-6
100.12
0.200
0.819
ND
ND
1 WG1346149
MTBE
1634-04-4
88.10
0.200
0.721
ND
ND
1 WG1346149
Naphthalene
91-20-3
128
0.630
3.30
ND
ND
1 WG1346149
2-Propanol
67-63-0
60.10
1.25
3.07
2.62
6.45
1 WG1346149
Propene
115-07-1
42.10
0.400
0.689
ND
ND
1 WG1346149
Styrene
100-42-5
104
0.200
0.851
ND
ND
1 WG1346149
1,1,2,2-Tetrachloroethane
79-34-5
168
0.200
1.37
ND
ND
1 WG1346149
Tetrachloroethylene
127-18-4
166
0.200
1.36
0.218
1.48
1 WG1346149
Tetrahydrofuran
109-99-9
72.10
0.200
0.590
ND
ND
1 WG1346149
Toluene
108-88-3
92.10
0.200
0.753
1.01
3.80
1 WG1346149
1,2,4-Trichlorobenzene
120-82-1
181
0.630
4.66
ND
ND
1 WG1346149
ACCOUNT:
PROJECT:
SDG:
DATE/TIME: PAGE:
Terracon -
Raleigh, NC
70197536
L1138762
09/17/19 17:37 7 of 21
FP1
FTc
FSS
4
Cn
Rc
F ql
FAI
FSC

SV-02 SAMPLE RESULTS - 02
Collected date/time: 09/11/19 13:32 L1138762
Volatile Organic Compounds (MS) by Method TO-15
ONE LAB. NATIONWIDE
CAS #
Mol. Wt.
RDL1
RDL2
Result
Result
Qualifier Dilution Batch
Analyte
ppbv
ug/m3
ppbv
ug/m3
1,1,1-Trichloroethane
71-55-6
133
0.200
1.09
ND
ND
1 WG1346149
1,1,2-Trichloroethane
79-00-5
133
0.200
1.09
ND
ND
1 WG1346149
Trichloroethylene
79-01-6
131
0.200
1.07
ND
ND
1 WG1346149
1,2,4-Trimethylbenzene
95-63-6
120
0.200
0.982
0.937
4.60
1 WG1346149
1,3,5-Trimethyl benzene
108-67-8
120
0.200
0.982
0.341
1.67
1 WG1346149
2,2,4-Trimethyl pentane
540-84-1
114.22
0.200
0.934
ND
ND
1 WG1346149
Vinyl chloride
75-01-4
62.50
0.200
0.511
ND
ND
1 WG1346149
Vinyl Bromide
593-60-2
106.95
0.200
0.875
ND
ND
1 WG1346149
Vinyl acetate
108-05-4
86.10
0.200
0.704
ND
ND
1 WG1346149
m&p-Xylene
1330-20-7
106
0.400
1.73
2.77
12.0
1 WG1346149
o-Xylene
95-47-6
106
0.200
0.867
0.831
3.60
1 WG1346149
(S)1,4-Bromof/uorobenzene
460-00-4
175
60.0-140
96.7
WG1346149
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
Terracon - Raleigh, NC 70197536 L1138762 09/17/19 17:37 8 of 21

SV-03 SAMPLE RESULTS - 03 ONE LAB. NATIONWIDE.
Collected date/time: 09/11/19 14:54 L1138762
Volatile Organic Compounds (MS) by Method TO-15
CAS #
Mol. Wt.
RDL1
RDL2
Result
Result
Qualifier Dilution Batch
Analyte
ppbv
ug/m3
ppbv
ug/m3
Acetone
67-64-1
58.10
1.25
2.97
7.33
17.4
1 WG1346149
Allyl chloride
107-05-1
76.53
0.200
0.626
ND
ND
1 WG1346149
Benzene
71-43-2
78.10
0.200
0.639
ND
ND
1 WG1346149
Benzyl Chloride
100-44-7
127
0.200
1.04
ND
ND
1 WG1346149
Bromodichloromethane
75-27-4
164
0.200
1.34
ND
ND
1 WG1346149
Bromoform
75-25-2
253
0.600
6.21
ND
ND
1 WG1346149
Bromomethane
74-83-9
94.90
0.200
0.776
ND
ND
1 WG1346149
1,3-Butadiene
106-99-0
54.10
2.00
4.43
ND
ND
1 WG1346149
Carbon disulfide
75-15-0
76.10
0.200
0.622
ND
ND
1 WG1346149
Carbon tetrachloride
56-23-5
154
0.200
1.26
ND
ND
1 WG1346149
Chlorobenzene
108-90-7
113
0.200
0.924
ND
ND
1 WG1346149
Chloroethane
75-00-3
64.50
0.200
0.528
ND
ND
1 WG1346149
Chloroform
67-66-3
119
0.200
0.973
1.09
5.28
1 WG1346149
Chloromethane
74-87-3
50.50
0.200
0.413
ND
ND
1 WG1346149
2-Chlorotoluene
95-49-8
126
0.200
1.03
ND
ND
1 WG1346149
Cyclohexane
110-82-7
84.20
0.200
0.689
ND
ND
1 WG1346149
Dibromochloromethane
124-48-1
208
0.200
1.70
ND
ND
1 WG1346149
1,2-Dibromoethane
106-93-4
188
0.200
1.54
ND
ND
1 WG1346149
1,2-Dichlorobenzene
95-50-1
147
0.200
1.20
ND
ND
1 WG1346149
1,3-Dichlorobenzene
541-73-1
147
0.200
1.20
ND
ND
1 WG1346149
1,4-Dichlorobenzene
106-46-7
147
0.200
1.20
ND
ND
1 WG1346149
1,2-Dichloroethane
107-06-2
99
0.200
0.810
ND
ND
1 WG1346149
1,1-Dichloroethane
75-34-3
98
0.200
0.802
ND
ND
1 WG1346149
1,1-Dichloroethene
75-35-4
96.90
0.200
0.793
ND
ND
1 WG1346149
cis-1,2-Dichloroethene
156-59-2
96.90
0.200
0.793
0.388
1.54
1 WG1346149
trans-1,2-Dichloroethene
156-60-5
96.90
0.200
0.793
ND
ND
1 WG1346149
1,2-Dichloropropane
78-87-5
113
0.200
0.924
ND
ND
1 WG1346149
cis-1,3-Dichloropropene
10061-01-5
111
0.200
0.908
ND
ND
1 WG1346149
trans-1,3-Dichloropropene
10061-02-6
111
0.200
0.908
ND
ND
1 WG1346149
1,4-Dioxane
123-91-1
88.10
0.200
0.721
ND
ND
1 WG1346149
Ethanol
64-17-5
46.10
0.630
1.19
14.5
27.3
1 WG1346149
Ethylbenzene
100-41-4
106
0.200
0.867
1.39
6.01
1 WG1346149
4-Ethyltoluene
622-96-8
120
0.200
0.982
ND
ND
1 WG1346149
Trichlorofluoromethane
75-69-4
137.40
0.200
1.12
0.675
3.80
1 WG1346149
Dichlorodifluoromethane
75-71-8
120.92
0.200
0.989
0.539
2.67
1 WG1346149
1,1,2-Trichlorotrifluoroethane
76-13-1
187.40
0.200
1.53
ND
ND
1 WG1346149
1,2-Dichlorotetrafluoroethane
76-14-2
171
0.200
1.40
ND
ND
1 WG1346149
Heptane
142-82-5
100
0.200
0.818
ND
ND
1 WG1346149
Hexachloro-1,3-butadiene
87-68-3
261
0.630
6.73
ND
ND
1 WG1346149
n-Hexane
110-54-3
86.20
0.200
0.705
ND
ND
1 WG1346149
Isopropylbenzene
98-82-8
120.20
0.200
0.983
ND
ND
1 WG1346149
Methylene Chloride
75-09-2
84.90
0.200
0.694
ND
ND
1 WG1346149
Methyl Butyl Ketone
591-78-6
100
1.25
5.11
ND
ND
1 WG1346149
2-Butanone (MEK)
78-93-3
72.10
1.25
3.69
ND
ND
1 WG1346149
4-Methyl-2-pentanone (MIBK)
108-10-1
100.10
1.25
5.12
ND
ND
1 WG1346149
Methyl methacrylate
80-62-6
100.12
0.200
0.819
ND
ND
1 WG1346149
MTBE
1634-04-4
88.10
0.200
0.721
ND
ND
1 WG1346149
Naphthalene
91-20-3
128
0.630
3.30
ND
ND
1 WG1346149
2-Propanol
67-63-0
60.10
1.25
3.07
ND
ND
1 WG1346149
Propene
115-07-1
42.10
0.400
0.689
ND
ND
1 WG1346149
Styrene
100-42-5
104
0.200
0.851
ND
ND
1 WG1346149
1,1,2,2-Tetrachloroethane
79-34-5
168
0.200
1.37
ND
ND
1 WG1346149
Tetrachloroethylene
127-18-4
166
0.200
1.36
ND
ND
1 WG1346149
Tetrahydrofuran
109-99-9
72.10
0.200
0.590
ND
ND
1 WG1346149
Toluene
108-88-3
92.10
0.200
0.753
0.354
1.33
1 WG1346149
1,2,4-Trichlorobenzene
120-82-1
181
0.630
4.66
ND
ND
1 WG1346149
ACCOUNT:
PROJECT:
SDG:
DATE/TIME: PAGE:
Terracon -
Raleigh, NC
70197536
L1138762
09/17/19 17:37 9 of 21
FP1
FTc
FSS
4
Cn
Rc
F ql
FAI
FSC

ONE LAB. NATIONWIDE.
SV-03 SAMPLE RESULTS - 03
Collected date/time: 09/11/19 14:54 L1138762
Volatile Organic Compounds (MS) by Method TO-15
CAS #
Mol. Wt.
RDL1
RDL2
Result
Result
Qualifier Dilution Batch
Analyte
ppbv
ug/m3
ppbv
ug/m3
1,1,1-Trichloroethane
71-55-6
133
0.200
1.09
ND
ND
1 WG1346149
1,1,2-Trichloroethane
79-00-5
133
0.200
1.09
ND
ND
1 WG1346149
Trichloroethylene
79-01-6
131
0.200
1.07
ND
ND
1 WG1346149
1,2,4-Trimethylbenzene
95-63-6
120
0.200
0.982
ND
ND
1 WG1346149
1,3,5-Trimethyl benzene
108-67-8
120
0.200
0.982
ND
ND
1 WG1346149
2,2,4-Trimethyl pentane
540-84-1
114.22
0.200
0.934
ND
ND
1 WG1346149
Vinyl chloride
75-01-4
62.50
0.200
0.511
ND
ND
1 WG1346149
Vinyl Bromide
593-60-2
106.95
0.200
0.875
ND
ND
1 WG1346149
Vinyl acetate
108-05-4
86.10
0.200
0.704
ND
ND
1 WG1346149
m&p-Xylene
1330-20-7
106
0.400
1.73
7.00
30.3
1 WG1346149
o-Xylene
95-47-6
106
0.200
0.867
3.17
13.7
1 WG1346149
(S)1,4-Bromof/uorobenzene
460-00-4
175
60.0-140
100
WG1346149
Fp
FTc
FSS
Fn
Fc
F,
FAI
FSC
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
Terracon - Raleigh, NC 70197536 L1138762 09/17/19 17:37 10 of 21

SV-04 SAMPLE RESULTS - 04 ONE LAB. NATIONWIDE.
Collected date/time: 09/11/19 15:44 L1138762
Volatile Organic Compounds (MS) by Method TO-15
CAS #
Mol. Wt.
RDL1
RDL2
Result
Result
Qualifier Dilution Batch
Analyte
ppbv
ug/m3
ppbv
ug/m3
Acetone
67-64-1
58.10
1.25
2.97
3.57
8.48
1 WG1346149
Allyl chloride
107-05-1
76.53
0.200
0.626
ND
ND
1 WG1346149
Benzene
71-43-2
78.10
0.200
0.639
ND
ND
1 WG1346149
Benzyl Chloride
100-44-7
127
0.200
1.04
ND
ND
1 WG1346149
Bromodichloromethane
75-27-4
164
0.200
1.34
ND
ND
1 WG1346149
Bromoform
75-25-2
253
0.600
6.21
ND
ND
1 WG1346149
Bromomethane
74-83-9
94.90
0.200
0.776
ND
ND
1 WG1346149
1,3-Butadiene
106-99-0
54.10
2.00
4.43
ND
ND
1 WG1346149
Carbon disulfide
75-15-0
76.10
0.200
0.622
ND
ND
1 WG1346149
Carbon tetrachloride
56-23-5
154
0.200
1.26
ND
ND
1 WG1346149
Chlorobenzene
108-90-7
113
0.200
0.924
ND
ND
1 WG1346149
Chloroethane
75-00-3
64.50
0.200
0.528
ND
ND
1 WG1346149
Chloroform
67-66-3
119
0.200
0.973
1.08
5.24
1 WG1346149
Chloromethane
74-87-3
50.50
0.200
0.413
ND
ND
1 WG1346149
2-Chlorotoluene
95-49-8
126
0.200
1.03
ND
ND
1 WG1346149
Cyclohexane
110-82-7
84.20
0.200
0.689
ND
ND
1 WG1346149
Dibromochloromethane
124-48-1
208
0.200
1.70
ND
ND
1 WG1346149
1,2-Dibromoethane
106-93-4
188
0.200
1.54
ND
ND
1 WG1346149
1,2-Dichlorobenzene
95-50-1
147
0.200
1.20
ND
ND
1 WG1346149
1,3-Dichlorobenzene
541-73-1
147
0.200
1.20
ND
ND
1 WG1346149
1,4-Dichlorobenzene
106-46-7
147
0.200
1.20
ND
ND
1 WG1346149
1,2-Dichloroethane
107-06-2
99
0.200
0.810
ND
ND
1 WG1346149
1,1-Dichloroethane
75-34-3
98
0.200
0.802
ND
ND
1 WG1346149
1,1-Dichloroethene
75-35-4
96.90
0.200
0.793
ND
ND
1 WG1346149
cis-1,2-Dichloroethene
156-59-2
96.90
0.200
0.793
ND
ND
1 WG1346149
trans-1,2-Dichloroethene
156-60-5
96.90
0.200
0.793
ND
ND
1 WG1346149
1,2-Dichloropropane
78-87-5
113
0.200
0.924
ND
ND
1 WG1346149
cis-1,3-Dichloropropene
10061-01-5
111
0.200
0.908
ND
ND
1 WG1346149
trans-1,3-Dichloropropene
10061-02-6
111
0.200
0.908
ND
ND
1 WG1346149
1,4-Dioxane
123-91-1
88.10
0.200
0.721
ND
ND
1 WG1346149
Ethanol
64-17-5
46.10
0.630
1.19
13.4
25.2
1 WG1346149
Ethylbenzene
100-41-4
106
0.200
0.867
ND
ND
1 WG1346149
4-Ethyltoluene
622-96-8
120
0.200
0.982
ND
ND
1 WG1346149
Trichlorofluoromethane
75-69-4
137.40
0.200
1.12
4.83
27.1
1 WG1346149
Dichlorodifluoromethane
75-71-8
120.92
0.200
0.989
0.399
1.97
1 WG1346149
1,1,2-Trichlorotrifluoroethane
76-13-1
187.40
0.200
1.53
ND
ND
1 WG1346149
1,2-Dichlorotetrafluoroethane
76-14-2
171
0.200
1.40
ND
ND
1 WG1346149
Heptane
142-82-5
100
0.200
0.818
ND
ND
1 WG1346149
Hexachloro-1,3-butadiene
87-68-3
261
0.630
6.73
ND
ND
1 WG1346149
n-Hexane
110-54-3
86.20
0.200
0.705
ND
ND
1 WG1346149
Isopropylbenzene
98-82-8
120.20
0.200
0.983
ND
ND
1 WG1346149
Methylene Chloride
75-09-2
84.90
0.200
0.694
0.201
0.697
B 1 WG1346149
Methyl Butyl Ketone
591-78-6
100
1.25
5.11
ND
ND
1 WG1346149
2-Butanone (MEK)
78-93-3
72.10
1.25
3.69
ND
ND
1 WG1346149
4-Methyl-2-pentanone (MIBK)
108-10-1
100.10
1.25
5.12
ND
ND
1 WG1346149
Methyl methacrylate
80-62-6
100.12
0.200
0.819
ND
ND
1 WG1346149
MTBE
1634-04-4
88.10
0.200
0.721
ND
ND
1 WG1346149
Naphthalene
91-20-3
128
0.630
3.30
ND
ND
1 WG1346149
2-Propanol
67-63-0
60.10
1.25
3.07
ND
ND
1 WG1346149
Propene
115-07-1
42.10
0.400
0.689
ND
ND
1 WG1346149
Styrene
100-42-5
104
0.200
0.851
ND
ND
1 WG1346149
1,1,2,2-Tetrachloroethane
79-34-5
168
0.200
1.37
ND
ND
1 WG1346149
Tetrachloroethylene
127-18-4
166
0.200
1.36
0.442
3.00
1 WG1346149
Tetrahydrofuran
109-99-9
72.10
0.200
0.590
ND
ND
1 WG1346149
Toluene
108-88-3
92.10
0.200
0.753
0.475
1.79
1 WG1346149
1,2,4-Trichlorobenzene
120-82-1
181
0.630
4.66
ND
ND
1 WG1346149
ACCOUNT:
PROJECT:
SDG:
DATE/TIME: PAGE:
Terracon -
Raleigh, NC
70197536
L1138762
09/17/19 17:37 11 of 21
FP1
FTc
FSS
4
Cn
Rc
F ql
FAI
FSC

ONE LAB. NATIONWIDE.
SV-04 SAMPLE RESULTS - 04
Collected date/time: 09/11/19 15:44 L1138762
Volatile Organic Compounds (MS) by Method TO-15
CAS #
Mol. Wt.
RDL1
RDL2
Result
Result
Qualifier Dilution Batch
Analyte
ppbv
ug/m3
ppbv
ug/m3
1,1,1-Trichloroethane
71-55-6
133
0.200
1.09
ND
ND
1 WG1346149
1,1,2-Trichloroethane
79-00-5
133
0.200
1.09
ND
ND
1 WG1346149
Trichloroethylene
79-01-6
131
0.200
1.07
ND
ND
1 WG1346149
1,2,4-Trimethylbenzene
95-63-6
120
0.200
0.982
ND
ND
1 WG1346149
1,3,5-Trimethyl benzene
108-67-8
120
0.200
0.982
ND
ND
1 WG1346149
2,2,4-Trimethyl pentane
540-84-1
114.22
0.200
0.934
ND
ND
1 WG1346149
Vinyl chloride
75-01-4
62.50
0.200
0.511
ND
ND
1 WG1346149
Vinyl Bromide
593-60-2
106.95
0.200
0.875
ND
ND
1 WG1346149
Vinyl acetate
108-05-4
86.10
0.200
0.704
ND
ND
1 WG1346149
m&p-Xylene
1330-20-7
106
0.400
1.73
ND
ND
1 WG1346149
o-Xylene
95-47-6
106
0.200
0.867
ND
ND
1 WG1346149
(S)1,4-Bromof/uorobenzene
460-00-4
175
60.0-140
99.5
WG1346149
Fp
FTc
FSS
Fn
Fc
F,
FAI
FSC
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
Terracon - Raleigh, NC 70197536 L1138762 09/17/19 17:37 12 of 21

SV-05 SAMPLE RESULTS - 05 ONE LAB. NATIONWIDE.
Collected date/time: 09/11/19 16:32 L1138762
Volatile Organic Compounds (MS) by Method TO-15
CAS #
Mol. Wt.
RDL1
RDL2
Result
Result
Qualifier Dilution Batch
u
Analyte
ppbv
ug/m3
ppbv
ug/m3
Acetone
67-64-1
58.10
1.25
2.97
47.6
113
1 WG1346149
FTc
Allyl chloride
107 051
76.53
0.200
0.626
ND
ND
1 WG1346149
Benzene
71-43-2
78.10
0.200
0.639
0.243
0.777
1 WG1346149
F
Benzyl Chloride
100-44-7
127
0.200
1.04
ND
ND
1 WG1346149
Bromodichloromethane
75-27-4
164
0.200
1.34
ND
ND
1 WG1346149
Bromoform
75-25-2
253
0.600
6.21
NDND
1 WG1346149
rCn
Bromomethane
74-83-9
94.90
0.200
0.776
ND
ND
1 WG1346149
1,3-Butadiene
106-99-0
54.10
2.00
4.43
ND
ND
1 WG1346149
Carbon disulfide
75-15-0
76.10
0.200
0.622
2.03
6.33
1 WG1346149
Carbon tetrachloride
56-23-5
154
0.200
1.26
ND
ND
1 WG1346149
Chlorobenzene
108-90-7
113
0.200
0.924
ND
ND
1 WG1346149
6
QC
Chloroethane
75-00-3
64.50
0.200
0.528
ND
ND
1 WG1346149
Chloroform
67-66-3
119
0.200
0.973
0.202
0.983
1 WG1346149
zGl
Chloromethane
74-87-3
50.50
0.200
0.413
ND
ND
1 WG1346149
2-Chlorotoluene
95-49-8
126
0.200
1.03
ND
ND
1 WG1346149
Cyclohexane
110-82-7
84.20
0.200
0.689
NDND
1 WG1346149
FAI
Dibromochloromethane
124-48-1
208
0.200
1.70
ND
ND
1 WG1346149
1,2-Dibromoethane
106-93-4
188
0.200
1.54
ND
ND
1 WG1346149
F
1,2-Dichlorobenzene
95-50-1
147
0.200
1.20
ND
ND
1 WG1346149
1,3-Dichlorobenzene
541-73-1
147
0.200
1.20
ND
ND
1 WG1346149
1,4-Dichlorobenzene
106-46-7
147
0.200
1.20
ND
ND
1 WG1346149
1,2-Dichloroethane
107-06-2
99
0.200
0.810
ND
ND
1 WG1346149
1,1-Dichloroethane
75-34-3
98
0.200
0.802
ND
ND
1 WG1346149
1,1-Dichloroethene
75-35-4
96.90
0.200
0.793
ND
ND
1 WG1346149
cis-1,2-Dichloroethene
156-59-2
96.90
0.200
0.793
ND
ND
1 WG1346149
trans-1,2-Dichloroethene
156-60-5
96.90
0.200
0.793
ND
ND
1 WG1346149
1,2-Dichloropropane
78-87-5
113
0.200
0.924
ND
ND
1 WG1346149
cis-1,3-Dichloropropene
10061-01-5
111
0.200
0.908
ND
ND
1 WG1346149
trans-1,3-Dichloropropene
10061-02-6
111
0.200
0.908
ND
ND
1 WG1346149
1,4-Dioxane
123-91-1
88.10
0.200
0.721
ND
ND
1 WG1346149
Ethanol
64-17-5
46.10
0.630
1.19
46.6
87.9
1 WG1346149
Ethylbenzene
100-41-4
106
0.200
0.867
ND
ND
1 WG1346149
4-Ethyltoluene
622-96-8
120
0.200
0.982
ND
ND
1 WG1346149
Trichlorofluoromethane
75-69-4
137.40
0.200
1.12
0.832
4.67
1 WG1346149
Dichlorodifluoromethane
75-71-8
120.92
0.200
0.989
0.491
2.43
1 WG1346149
1,1,2-Trichlorotrifluoroethane
76-13-1
187.40
0.200
1.53
ND
ND
1 WG1346149
1,2-Dichlorotetrafluoroethane
76-14-2
171
0.200
1.40
ND
ND
1 WG1346149
Heptane
142-82-5
100
0.200
0.818
ND
ND
1 WG1346149
Hexachloro-1,3-butadiene
87-68-3
261
0.630
6.73
ND
ND
1 WG1346149
n-Hexane
110-54-3
86.20
0.200
0.705
0.348
1.23
1 WG1346149
Isopropylbenzene
98-82-8
120.20
0.200
0.983
ND
ND
1 WG1346149
Methylene Chloride
75-09-2
84.90
0.200
0.694
0.689
2.39
B 1 WG1346149
Methyl Butyl Ketone
591-78-6
100
1.25
5.11
ND
ND
1 WG1346149
2-Butanone (MEK)
78-93-3
72.10
1.25
3.69
2.57
7.59
1 WG1346149
4-Methyl-2-pentanone (MIBK)
108-10-1
100.10
1.25
5.12
ND
ND
1 WG1346149
Methyl methacrylate
80-62-6
100.12
0.200
0.819
ND
ND
1 WG1346149
MTBE
1634-04-4
88.10
0.200
0.721
ND
ND
1 WG1346149
Naphthalene
91-20-3
128
0.630
3.30
ND
ND
1 WG1346149
2-Propanol
67-63-0
60.10
1.25
3.07
3.74
9.20
1 WG1346149
Propene
115-07-1
42.10
0.400
0.689
ND
ND
1 WG1346149
Styrene
100-42-5
104
0.200
0.851
ND
ND
1 WG1346149
1,1,2,2-Tetrachloroethane
79-34-5
168
0.200
1.37
ND
ND
1 WG1346149
Tetrachloroethylene
127-18-4
166
0.200
1.36
ND
ND
1 WG1346149
Tetrahydrofuran
109-99-9
72.10
0.200
0.590
ND
ND
1 WG1346149
Toluene
108-88-3
92.10
0.200
0.753
0.476
1.79
1 WG1346149
1,2,4-Trichlorobenzene
120-82-1
181
0.630
4.66
ND
ND
1 WG1346149
ACCOUNT:
PROJECT:
SDG:
DATE/TIME:
PAGE:
Terracon -
Raleigh, NC
70197536
L1138762
09/17/19 17:37
13 of 21

SV-05 SAMPLE RESULTS - 05
Collected date/time: 09/11/19 16:32 L1138762
Volatile Organic Compounds (MS) by Method TO-15
ONE LAB. NATIONWIDE
CAS #
Mol. Wt.
RDL1
RDL2
Result
Result
Qualifier Dilution Batch
Analyte
ppbv
ug/m3
ppbv
ug/m3
1,1,1-Trichloroethane
71-55-6
133
0.200
1.09
ND
ND
1 WG1346149
1,1,2-Trichloroethane
79-00-5
133
0.200
1.09
ND
ND
1 WG1346149
Trichloroethylene
79-01-6
131
0.200
1.07
ND
ND
1 WG1346149
1,2,4-Trimethylbenzene
95-63-6
120
0.200
0.982
ND
ND
1 WG1346149
1,3,5-Trimethyl benzene
108-67-8
120
0.200
0.982
ND
ND
1 WG1346149
2,2,4-Trimethyl pentane
540-84-1
114.22
0.200
0.934
ND
ND
1 WG1346149
Vinyl chloride
75-01-4
62.50
0.200
0.511
ND
ND
1 WG1346149
Vinyl Bromide
593-60-2
106.95
0.200
0.875
ND
ND
1 WG1346149
Vinyl acetate
108-05-4
86.10
0.200
0.704
ND
ND
1 WG1346149
m&p-Xylene
1330-20-7
106
0.400
1.73
ND
ND
1 WG1346149
o-Xylene
95-47-6
106
0.200
0.867
ND
ND
1 WG1346149
(S)1,4-Bromof/uorobenzene
460-00-4
175
60.0-140
98.6
WG1346149
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
Terracon - Raleigh, NC 70197536 L1138762 09/17/19 17:37 14 of 21

WG1346149 QUALITY CONTROL SUMMARY ONE LAB. NATIONWIDE.
Volatile Organic Compounds (MS) by Method TO-15 L1138762-01,02,03,04,05
Method Blank (MB)
(MB) R3450958-3 09/15/19 09:46
MB Result MB Qualifier
MB MDL
MB RDL
Analyte
ppbv
ppbv
ppbv
Acetone
0.195 J
0.0569
1.25
Allyl Chloride
U
0.0546
0.200
Benzene
U
0.0460
0.200
Benzyl Chloride
U
0.0598
0.200
Bromodichloromethane
U
0.0436
0.200
Bromoform
U
0.0786
0.600
Bromomethane
U
0.0609
0.200
1,3-Butadiene
U
0.0563
2.00
Carbon disulfide
U
0.0544
0.200
Carbon tetrachloride
U
0.0585
0.200
Chlorobenzene
U
0.0601
0.200
Chloroethane
U
0.0489
0.200
Chloroform
U
0.0574
0.200
Chloromethane
U
0.0544
0.200
2-Chlorotoluene
U
0.0605
0.200
Cyclohexane
U
0.0534
0.200
Dibromochloromethane
U
0.0494
0.200
1,2-Dibromoethane
U
0.0185
0.200
1,2-Dichlorobenzene
U
0.0603
0.200
1,3-Dichlorobenzene
U
0.0597
0.200
1,4-Dichlorobenzene
U
0.0557
0.200
1,2-Dichloroethane
U
0.0616
0.200
1,1-Dichloroethane
U
0.0514
0.200
1,1-Dichloroethene
U
0.0490
0.200
cis-1,2-Dichloroethene
U
0.0389
0.200
trans-1,2-Dichloroethene
U
0.0464
0.200
1,2-Dichloropropane
U
0.0599
0.200
cis-1,3-Dichloropropene
U
0.0588
0.200
trans-1,3-Dichloropropene
U
0.0435
0.200
1,4-Dioxane
U
0.0554
0.200
Ethylbenzene
U
0.0506
0.200
4-Ethyltoluene
U
0.0666
0.200
Trichlorofluoromethane
U
0.0673
0.200
Dichlorodifluoromethane
U
0.0601
0.200
1,1,2-Trichlorotrifluoroethane
U
0.0687
0.200
1,2-Dichlorotetrafluoroethane
U
0.0458
0.200
Heptane
U
0.0626
0.200
Hexachloro-1,3-butadiene
U
0.0656
0.630
n-Hexane
U
0.0457
0.200
Isopropylbenzene
U
0.0563
0.200
ACCOUNT:
Terracon
- Raleigh, NC
PROJECT: SDG: DATE/TIME: PAGE:
70197536 L1138762 09/17/19 17:37 15 of 21
FP1
FTC
FSS
[Cn]
FSr
�GI
FAI
FSC

WG1346149 QUALITY CONTROL SUMMARY ONE LAB. NATIONWIDE.
Volatile Organic Compounds (MS) by Method TO-15 L1138762-01,02,03,04,05
Method Blank (MB)
(MB) R3450958-3 09/15/19 09:46
MB Result
Analyte ppbv
Methylene Chloride
0.0931
Methyl Butyl Ketone
U
2-Butanone (MEK)
U
4-Methyl-2-pentanone (MIBK)
U
Methyl Methacrylate
U
MTBE
U
Naphthalene
U
2-Propanol
0.0954
Propene
0.196
Styrene
U
1,1,2,2-Tetrachloroethane
U
Tetrachloroethylene
U
Tetrahydrofuran
U
Toluene
U
1,2,4-Trichlorobenzene
U
1,1,1-Trichloroethane
U
1,1,2-Trichloroethane
U
Trichloroethylene
U
1,2,4-Trimethylbenzene
U
1,3,5-Trimethyl benzene
U
2,2,4-Trimethyl pentane
U
Vinyl chloride
U
Vinyl Bromide
U
Vinyl acetate
U
m&p-Xylene
U
o-Xylene
U
Ethanol
U
(S)1,4-Bromof/uorobenzene
96.6
MB Qualifier
MB MDL
MB RDL
ppbv
ppbv
J
0.0465
0.200
0.0682
1.25
0.0493
1.25
0.0650
1.25
0.0773
0.200
0.0505
0.200
0.154
0.630
J
0.0882
1.25
J
0.0932
0.400
0.0465
0.200
0.0576
0.200
0.0497
0.200
0.0508
0.200
0.0499
0.200
0.148
0.630
0.0665
0.200
0.0287
0.200
0.0545
0.200
0.0483
0.200
0.0631
0.200
0.0456
0.200
0.0457
0.200
0.0727
0.200
0.0639
0.200
0.0946
0.400
0.0633
0.200
0.0832
0.630
60.0-140
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R3450958-1 09/15/19 08:31 • (LCSD) R3450958-2 09/15/19 09:09
Spike Amount
LCS Result
LCSD Result
LCS Rec.
LCSD Rec.
Rec. Limits
LCS Qualifier LCSD Qualifier RPD
RPD Limits
Analyte ppbv
ppbv
ppbv
%
%
%
%
%
Ethanol 3.75
5.05
4.70
135
125
55.0-148
7.11
25
Propene 3.75
4.05
4.08
108
109
64.0-144
0.615
25
Dichlorodifluoromethane 3.75
4.09
4.50
109
120
64.0-139
9.50
25
1,2-Dichlorotetrafluoroethane 3.75
4.28
4.41
114
118
70.0-130
2.96
25
Chloromethane 3.75
4.12
4.22
110
112
70.0-130
2.38
25
ACCOUNT:
PROJECT:
SDG:
DATE/TIME: PAGE:
Terracon - Raleigh, NC
70197536
L1138762
09/17/19 17:37 16 of 21
FP1
FTc
FSS
4
Cn
FSr
�GI
FAI
FSC

WG1346149 QUALITY CONTROL SUMMARY
Volatile Organic Compounds (MS) by Method TO-15 L1138762-01,02,03,04,05
ONE LAB. NATIONWIDE.
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R3450958-1 09/15/19 08:31 • (LCSD) R3450958-2 09/15/19 09:09
Spike Amount
LCS Result
LCSD Result
Analyte
ppbv
ppbv
ppbv
Vinyl chloride
3.75
4.36
4.21
1,3-Butadiene
3.75
4.20
4.11
Bromomethane
3.75
4.24
4.14
Chloroethane
3.75
4.58
4.33
Trichlorofluoromethane
3.75
4.54
4.31
1,1,2-Trichlorotrifluoroethane
3.75
4.19
4.26
1,1-Dichloroethene
3.75
4.26
4.48
1,1-Dichloroethane
3.75
4.26
4.24
Acetone
3.75
3.84
4.06
2-Propanol
3.75
4.43
4.40
Carbon disulfide
3.75
4.15
4.35
Methylene Chloride
3.75
3.82
3.98
MTBE
3.75
4.12
4.27
trans-1,2-Dichloroethene
3.75
4.19
4.29
n-Hexane
3.75
4.32
4.41
Vinyl acetate
3.75
4.38
4.37
Methyl Ethyl Ketone
3.75
4.28
4.25
cis-1,2-Dichloroethene
3.75
4.34
4.37
Chloroform
3.75
4.24
4.34
Cyclohexane
3.75
4.21
4.29
1,1,1-Trichloroethane
3.75
4.17
4.18
Carbon tetrachloride
3.75
4.33
4.35
Benzene
3.75
4.26
4.27
1,2-Dichloroethane
3.75
4.24
4.28
Heptane
3.75
4.37
4.39
Trichloroethylene
3.75
4.16
4.17
1,2-Dichloropropane
3.75
4.38
4.40
1,4-Dioxane
3.75
4.72
4.59
Bromodichloromethane
3.75
4.40
4.28
cis-1,3-Dichloropropene
3.75
4.27
4.20
4-Methyl-2-pentanone (MIBK)
3.75
4.26
4.18
Toluene
3.75
4.21
4.14
trans-1,3-Dichloropropene
3.75
4.46
4.21
1,1,2-Trichloroethane
3.75
4.32
4.24
Tetrachloroethylene
3.75
4.31
4.24
Methyl Butyl Ketone
3.75
4.46
4.43
Dibromochloromethane
3.75
4.36
4.34
1,2-Dibromoethane
3.75
4.29
4.22
Chlorobenzene
3.75
4.25
4.24
Ethylbenzene
3.75
4.24
4.35
ACCOUNT:
Terracon - Raleigh, INC
LCS Rec.
LCSD Rec.
Rec. Limits
LCS Qualifier LCSD Qualifier RPD
RPD Limits
116
112
70.0-130
3.32
25
112
110
70.0-130
2.17
25
113
110
70.0-130
2.34
25
122
115
70.0-130
5.76
25
121
115
70.0-130
5.10
25
112
114
70.0-130
1.58
25
114
120
70.0-130
5.20
25
113
113
70.0-130
0.482
25
102
108
70.0-130
5.52
25
118
117
70.0-139
0.644
25
111
116
70.0-130
4.71
25
102
106
70.0-130
4.10
25
110
114
70.0-130
3.54
25
112
114
70.0-130
2.28
25
115
117
70.0-130
2.01
25
117
116
70.0-130
0.329
25
114
113
70.0-130
0.680
25
116
116
70.0-130
0.560
25
113
116
70.0-130
2.35
25
112
114
70.0-130
1.76
25
111
111
70.0-130
0.191
25
115
116
70.0-130
0.561
25
114
114
70.0-130
0.263
25
113
114
70.0-130
0.900
25
116
117
70.0-130
0.412
25
111
111
70.0-130
0.140
25
117
117
70.0-130
0.472
25
126
122
70.0-140
2.73
25
117
114
70.0-130
2.94
25
114
112
70.0-130
1.63
25
113
111
70.0-139
1.87
25
112
110
70.0-130
1.79
25
119
112
70.0-130
5.64
25
115
113
70.0-130
1.98
25
115
113
70.0-130
1.57
25
119
118
70.0-149
0.796
25
116
116
70.0-130
0.533
25
114
112
70.0-130
1.72
25
113
113
70.0-130
0.0850
25
113
116
70.0-130
2.64
25
PROJECT:
SDG:
DATE/TIME: PAGE:
70197536
L1138762
09/17/19 17:37 17 of 21
FP1
FTC
FSS
[Cn]
FSr
�GI
FAI
FSC

WG1346149 QUALITY CONTROL SUMMARY
Volatile Organic Compounds (MS) by Method TO-15 L1138762-01,02,03,04,05
ONE LAB. NATIONWIDE.
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R3450958-1 09/15/19 08:31 • (LCSD) R3450958-2 09/15/19 09:09
Spike Amount
LCS Result
LCSD Result
LCS Rec.
Analyte
ppbv
ppbv
ppbv
%
m&p-Xylene
7.50
8.63
8.64
115
o-Xylene
3.75
4.34
4.39
116
Styrene
3.75
4.43
4.46
118
Bromoform
3.75
4.38
4.46
117
1,1,2,2-Tetrachloroethane
3.75
4.28
4.39
114
4-Ethyltoluene
3.75
4.51
4.44
120
1,3,5-Trim ethyl benzene
3.75
4.42
4.48
118
1,2,4-Trimethylbenzene
3.75
4.50
4.46
120
1,3-Dichlorobenzene
3.75
4.62
4.59
123
1,4-Dichlorobenzene
3.75
4.67
4.53
125
Benzyl Chloride
3.75
4.74
4.68
126
1,2-Dichlorobenzene
3.75
4.48
4.44
120
1,2,4-Trichlorobenzene
3.75
4.56
4.61
122
Hexachloro-1,3-butadiene
3.75
4.38
4.38
117
Naphthalene
3.75
4.48
4.46
120
Allyl Chloride
3.75
4.08
4.21
109
2-Chlorotoluene
3.75
4.36
4.32
116
Methyl Methacrylate
3.75
4.37
4.36
117
Tetrahydrofuran
3.75
4.34
4.33
116
2,2,4-Trimethyl pentane
3.75
4.32
4.43
115
Vinyl Bromide
3.75
4.53
4.33
121
Isopropylbenzene
3.75
4.43
4.47
118
(S)1,4-Bromofluorobenzene
99.9
LCSD Rec.
Rec. Limits
LCS Qualifier LCSD Qualifier RPD
RPD Limits
115
70.0-130
0.0536
25
117
70.0-130
1.04
25
119
70.0-130
0.557
25
119
70.0-130
1.80
25
117
70.0-130
2.51
25
118
70.0-130
1.41
25
120
70.0-130
1.52
25
119
70.0-130
0.957
25
122
70.0-130
0.631
25
121
70.0-130
3.22
25
125
70.0-152
1.35
25
118
70.0-130
1.00
25
123
70.0-160
1.14
25
117
70.0-151
0.0143
25
119
70.0-159
0.526
25
112
70.0-130
3.18
25
115
70.0-130
0.974
25
116
70.0-130
0.204
25
116
70.0-137
0.150
25
118
70.0-130
2.49
25
115
70.0-130
4.46
25
119
70.0-130
0.913
25
99.7
60.0-140
FP1
FTC
FSS
4
Cn
FSr
�GI
FAI
FSC
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
Terracon - Raleigh, NC 70197536 L1138762 09/17/19 17:37 18 of 21

GLOSSARY OF TERMS
Guide to Reading and Understanding Your Laboratory Report
ONE LAB. NATIONWIDE.
The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not
intended as a comprehensive explanation, and if you have additional questions please contact your project representative.
Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name,
Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On -Site Data, Sampling Collection Dates/Times, and
Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received.
Abbreviations and Definitions
CP
IP
FTC
FSS
MDL
Method Detection Limit.
ND
Not detected at the Reporting Limit (or MDL where applicable).
[Cn]
RDL
Reported Detection Limit.
Rec.
Recovery.
FSr
RPD
Relative Percent Difference.
SDG
Sample Delivery Group.
Surrogate (Surrogate Standard) - Analytes added to every blank, sample, Laboratory Control Sample/Duplicate and
6
QC
(S)
Matrix Spike/Duplicate; used to evaluate analytical efficiency by measuring recovery. Surrogates are not expected to be
detected in all environmental media.
U
Not detected at the Reporting Limit (or MDL where applicable).
Analyte
The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes
reported.
If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the
a
Dilution
standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the
laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the
result reported has already been corrected for this factor.
FSC
These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal
Limits
for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or
duplicated within these ranges.
This column provides a letter and/or number designation that corresponds to additional information concerning the result
Qualifier
reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and
potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable.
The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was
no measurable result returned for a specific analyte, the result in this column may state "ND" (Not Detected) or "BDL"
Result
(Below Detectable Levels). The information in the results column should always be accompanied by either an MDL
(Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect
or report for this analyte.
Uncertainty
(Radiochemistry)
Confidence level of 2 sigma.
A brief discussion about the included sample results, including a discussion of any non -conformances to protocol
Case Narrative (Cn)
observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will
be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report.
Quality Control
This section of the report includes the results of the laboratory quality control analyses required by procedure or
Summary (Qc)
analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not
being performed on your samples typically, but on laboratory generated material.
This is the document created in the field when your samples were initially collected. This is used to verify the time and
Sample Chain of
date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This
Custody (Sc)
chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the
samples from the time of collection until delivery to the laboratory for analysis.
This section of your report will provide the results of all testing performed on your samples. These results are provided
Sample Results (Sr)
by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for
each sample will provide the name and method number for the analysis reported.
Sample Summary (Ss)
This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and
times of preparation and/or analysis.
Qualifier
Description
B
The same analyte is found in the associated blank.
J
The identification of the analyte is acceptable; the reported value is an estimate.
ACCOUNT:
PROJECT: SDG: DATE/TIME: PAGE:
Terracon - Raleigh, NC
70197536 L1138762 09/17/19 17:37 19 of 21

ACCREDITATIONS & LOCATIONS ONE LAB. NATIONWIDE.
Pace National is the only environmental laboratory accredited/certified to support your work nationwide from one location. One phone call, one point of contact, one laboratory. No other lab is as
accessible or prepared to handle your needs throughout the country. Our capacity and capability from our single location laboratory is comparable to the collective totals of the network
laboratories in our industry. The most significant benefit to our one location design is the design of our laboratory campus. The model is conducive to accelerated productivity, decreasing FP1
turn -around time, and preventing cross contamination, thus protecting sample integrity. Our focus on premium quality and prompt service allows us to be YOUR LAB OF CHOICE.
Not all certifications held by the laboratory are applicable to the results reported in the attached report.
Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace National. Z
Tc
State Accreditations
f—�
Alabama
40660
Nebraska _
NE-OS-15-05
SS
Alaska
17-026
Nevada
TN-03-2002-34
Arizona
AZO612
New Hampshire
2975
Arkansas
88-0469
New Jersey_NELAP
TNO02
C n
California
2932
New Mexico
n/a
Colorado
TN00003
New York
11742
s
Connecticut
PH-0197
North Carolina
Env375
Sr
Florida
E87487
North Carolina'
DW21704
Georgia
NELAP
North Carolina'
41
Georgia'
923
North Dakota
R-140
RC
Idaho
TN00003
Ohio—VAP
CL0069
Illinois
200008
Oklahoma
9915
Indiana
C-TN-01
Oregon
TN200002
G
Iowa
364
Pennsylvania
68-02979
Kansas
E-10277
Rhode Island
LA000356
Kentucky76
90010
South Carolina
84004
Kentucky 2
16
South Dakota
n/a
Louisiana
A130792
Tennessee' 4
2006
Louisiana'
LA180010
Texas
T104704245-18-15
[SC
Maine
TN0002
Texas'
LABO152
Maryland
324
Utah
Massachusetts
M-TNO03
Vermont
Michigan
9958
Virginia
Minnesota
047-999-395
Washington
Mississippi
TN00003
West Virginia
Missouri
340
Wisconsin
Montana
CERT0086
Wyoming
Third Party
Federal Accreditations
A21LA — ISO 17025
1461.01
AIHA-LAP,LLC EMLAP
A21LA — ISO 17025 5
1461.02
DOD
Canada
1461.01
USDA
EPA—Crypto
TN00003
' Drinking Water 'Underground
Storage Tanks 3 Aquatic Toxicity 4 Chemical/Microbiological 5 Mold
6 Wastewater n/a Accreditation not applicable
Our Locations
TN00003
VT2006
460132
C847
233
9980939910
A2LA
100789
1461.01
P330-15-00234
Pace National has sixty-four client support centers that provide sample pickup and/or the delivery of sampling supplies. If you would like assistance from one of our support offices, please contact
our main office. Pace National performs all testing at our central laboratory.
WA
ME
MT NO
OR MN
T ID t WI NY
SD
WY MI
NV
t NE IA OH PA
T f IL Ills WV
vA
UT T
CA�� T
KS MO KY
N
NM O� AR SC
T MS AL`7GA
T TX * LA
T
AK
q FL
wo HI
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
Terracon - Raleigh, NC 70197536 L1138762 09/17/19 17:37 20 of 21

Billing Information:
n iner
1 Pre
rvative
Chain of Custody Page IL 7
Terracon - Raleigh, NC
Accounts Payable Pre;
2401 Brentwood Rd Chk
aceAnalytieal°
2401 Brentwood Rd
Ste 107
Nemevul Cwiax rn 7astlnp 8 IrnioywMon
Ste 107
Raleigh, NC 27604
Ralciuh NC 77rnA
12055 Lebanon Rd ff]* Q
Repart to:
Email To: [e-mail]
Analee Farrell
Mount Juliet, IN 37122 W.-
Phone: [phone]SS +'• -O
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Description: L 5 r
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SDG # 038 76Z
Client Project #
Lab Project #
Phone, 919-873-2211
Fax: [phone]
70197536
H 1 47
Acctnum: TERRRNC
AIlected by (print),
Fw 1'
Site/Facility ID #
P.O. #
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TemplateJ145372
Collected by (signature):
Rush? (Lab MUD Be Notified) Quote q
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SaDay 1LC Five Day
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Prelogin: P729112
Next Day _ 5 Day (Rad Only) Date Results Needed
PM: 873 - Heather) Wagner
Immediately %
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Two Day _ 10 Day (Rad Only) No.
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snipped via: FedEX Ground
Sample ID
Comp/Grab
Matrix'
Depth
Date
Time
Cntrs
O
Remarks Sample p (lab only}
S V- O I
Grp
Air
9 11 l
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• Matrix:Remarks: Saar.ple Re aCbIJ;;klist
Ss - Soii AIR -Air F - Filter pH Temp _ CDC Seal Present/Intact: e--VP Y N
GW - Groundwater 8 - Bioassay CDC Signed/Accurate: _!,Y —N
Bottles arrive intact:
WW - Waste Water Flaw Other _ZY —N
Correct bottles used:
_!Y _N
DW- Drinking Water Samples rereed via: Sufficient, volume sent: 1f—N
OT - Other Tracking # f Applicable
— _ UPS FedEx Courier VGA Zero Headspace: _Y _N
Preservation Correct/Checked: Y N
Relinquished by : (Signature) Date: Time: Received by. (Signature) Trip Blank Re ivYes PAD Screen c0. 5 mR/hr: —Y N
—
I WIeoH
eA� Il 3
BRed:
TBR
Relinquished by : (Signature)
Date- Time:
Received by: (Signature)
Temp: °C Battles Received:
If preservation required by Login: Date/Time
c
A j� ✓ f w
Relinquished by : (Signature)
Date: Time:
Received for lab by: (Signaturel
Date:: Time:
Hold:
Condition:
NCF /K