25097-21-032 - Eno Industrial Park - RSR and Notice 1-30-2023

=a
January 30, 2023
North Carolina Brownfields Program
NCDEQ, Division of Waste Management
217 West Jones Street
Raleigh, North Carolina 27603
Attention: Ms. Shristi Shrestha via email: [e-mail]
Brownfields Project Manager
Reference: Redevelopment Summary Report for 2022 and Notice of Site Development Activities
1420 Old Oxford Road, 1225 Hamlin Road, and 1539 Hamlin Road, Durham, NC
Brownfields Project Name/No.: Eno Industrial Park / 25097-21-032
S&ME Project No. 218154A
Dear Ms. Shrestha:
This Redevelopment Summary Report (RSR) is prepared by S&ME, Inc. (S&ME), on behalf of our client, Welcome
Venture Park, LLC (WVP), documenting site activities in support of site redevelopment in accordance with the
Environmental Management Plan (EMP) approved by the North Carolina Brownfields Program (NCBP) on
December 16, 2022. The site activities during 2022 are summarized below and we are providing the EMP-
required notice of the start of site construction activities.
2022 Site Redevelopment Activities
Site construction or redevelopment activities did not occur during 2022. As part of the Work Plan Assessment
activities completed by S&ME, the abandoned electrical transformer and soils impacted with polychlorinated
biphenyls (PCBs) from dielectric fluid releases were delineated, excavated and removed from the Brownfields site,
including the pole -mounted electrical transformer equipment on December 19, 2022 and December 20, 2022.
A copy of the letter report titled "Excavation and Disposal of PCB -Impacted Soils" and dated January 24, 2023 is
attached. In accordance with the approved EMP, the next RSR is scheduled to be submitted on or before January
31, 2024.
Notice of Site Redevelopment Activities — January 2023
In accordance with the EMP, S&ME hereby notifies NCBP that site grading activities will commence at the
Brownfields Property on March 15, 2023. The initial activities will include installation of tree protection fencing
and erosion control measures. Subsequent site activities will include mobilization of equipment and overall site
grading.
In preparation for the site grading activities, S&ME has scheduled the abandonment of the existing monitoring
wells and soil gas implants (SGIs) in mid -February 2023. S&ME will summarize and document abandonment of
the monitoring wells and SGIs in the January 2024 RSR.
S&ME, Inc. 13201 Spring Forest Road I Raleigh, NC 27616 1 p 919.872.2660 1 wvvw.smeinc.com

Redevelopment Summary Report for 2022 and Notice of Site Development Activities
Welcome Venture Park/Eno Industrial Park
Brownfields Project No. 25097-21-032
S&ME Project No. 218154A
Closure
Please contact the undersigned `!Zjt4mjj qR� uestion!
CA
0111,
�S
Sincerely, Q`,•''F p
S&ME, Inc. = 2 4 SE
;-- 054857
� UcE A. Barroso-Giachetti, P.E., N
Senior Environmental Engineer
North Carolina License No. 054857
[e-mail]
or comments regarding this report.
Samuel P. Watts, P.G.
Principal Geologist/Senior Project Manager
NC Licensed Geologist No. 1806
swatts9smeinc.com
cc: Sharon Eckard sharon.eckard ncdenr. ov — NC Brownfields Program
Ted Kakambouras tkakambouras welcome rou .com — Welcome Group
George House ([e-mail]) — Brooks Pierce Law Firm
Attachment:
Excavation and Disposal of PCB -Impacted Soils, dated January 24, 2023
January 30, 2023
2

Attachment

=a
January 24, 2023
North Carolina Brownfields Program
NCDEQ, Division of Waste Management
217 West Jones Street
Raleigh, North Carolina 27603
Attention: Ms. Shristi Shrestha via email: [e-mail]
Brownfields Project Manager
Reference: Excavation and Disposal of PCB -Impacted Soils
1420 Old Oxford Road, 1225 Hamlin Road, and 1539 Hamlin Road, Durham, NC
Brownfields Project Name/No.: Eno Industrial Park / 25097-21-032
S&ME Project No. 218154A
Dear Ms. Shrestha:
This letter report is prepared by S&ME, Inc. (S&ME), on behalf of our client, Welcome Venture Park, LLC (WVP),
documenting the confirmation pre -excavation soil sampling, excavation, transportation and disposal of soils
impacted with polychlorinated biphenyls (PCBs) from an abandoned pole -mounted electrical transformer at the
above -referenced site. WVP plans to improve the Site under the North Carolina Department of Environmental
Quality (NCDEQ) Brownfields Program (NCBP) based on the property eligibility granted to pursue a Brownfields
Agreement (BFA).
Project Background
According to the Brownfields Property Application (dated November 4, 2021), the site is approximately 160 acres
and is comprised of Durham County Tax Parcels 0833-02-89-5258, 0844-01-10-2331, 0843-01-09-6498 and 0833-
02-99-6163 (Figure 1). Based on the Phase I Environmental Site Assessment (ESA) prepared by S&ME during
2021, a pole -mounted transformer observed on -site represented a Recognized Environmental Condition (Figure
2). Between approximately the 1930s and the 1970s, transformers were sometimes manufactured with PCBs and
synthetic fire-resistant chemicals used in the electrical insulating fluids. Review of historical sources indicated the
on -site structures (and likely the associated electric power supply) were built during this period. Absent markings
that would identify the transformer as non -PCB containing, or identify the manufacturer, or the manufacture date,
the transformer was presumed to contain PCBs and other constituents of concern (COCs).
During February 2022, the dielectric fluid from the electrical transformer encountered during the Phase I ESA was
sampled for its PCB content. Due to the PCB concentrations reported at less than 50 parts per million (ppm), the
fluid is considered non -PCB material/fluid by the United States Environmental Protection Agency (USEPA). S&ME
estimated that as much as 10 gallons of dielectric fluid may have been released from the electric transformer. A
limited excavation and proper disposal of soil from this area was recommended to NCBP to address the low-level
PCB impact.
S&ME, Inc. 13201 Spring Forest Road I Raleigh, NC 27616 1 p 919.872.2660 1 www.smeinc.com

Excavation and Disposal of PCB -Impacted Soils �1
Welcome Venture Park/Eno Industrial Park A�
Durham, North Carolina I
Brownfields Project No. 25097-21-032
S&ME Project No. 218154A
Assessment Work Plan — Proposed Limited Source Removal
S&ME's Assessment Work Plan dated July 22, 2022 proposed to conduct a limited excavation of the surficial soils
identified with potential impacts from electrical transformer di -electric fluid. Prior to mobilizing to the site to
complete the source removal, S&ME proposed collection of confirmation sidewall and bottom of the excavation
soil samples to define/confirm the dimensions of the proposed excavation. Based on an assumed radial
dispersion of the historical electrical transformer di -electric fluid and to incorporate an over -excavation approach
of impacted surficial soils (top 12 inches), the excavation area was assumed to be approximately 20 feet by 20 feet.
S&ME proposed collecting confirmatory soil samples from the sidewall and bottom of the planned excavation
using either hand augers or direct -push technology (DPT) at the following approximate depths: one -foot below
ground surface (BGS), two feet BGS and three feet BGS. The one -foot surficial confirmation soil samples were
proposed for analysis of PCB Aroclors by EPA Method 8082, volatile organic compounds (VOCs) by EPA Method
8260B, and semi -volatile organic compounds (SVOCs) by EPA Method 8270.
The confirmation soil samples collected from the two -foot interval and three-foot interval were submitted to the
laboratory and placed on "hold" pending the analysis results from the surficial 1-foot BGS interval. The area of the
electric transformer is shown on Figure 2 at the former location of soil boring SS-1.
Pre -Excavation Confirmation Soil Sampling — July 2022
S&ME and our drilling subcontractor, Quantex Drilling, mobilized to the Site on July 26, 2022 through July 29,
2022 and advanced soil borings in the assessment areas per the NCBP-approved Work Plan dated July 22, 2022.
As part of that assessment, soil borings ET-N, ET-S, ET-E, ET-W and ET-B were advanced to delineate the impacts
from the abandoned electrical transformer area for subsequent soil excavation activities.
Soil samples were collected utilizing a decontaminated stainless steel hand auger and a track -mounted DPT
drilling rig. Soil samples were collected and submitted for laboratory analysis to Enthalpy Analytical (Enthalpy) of
Richmond, Virginia for the following analyses:
VOCs by EPA Method 8260, SVOCs by EPA Method 8270, PCB Aroclors by EPA Method 8082A and
PCB Congeners by EPA Method 1668.
The blind duplicate sample ET-DUP was analyzed for the same parameters as the record samples. Copies of the
analytical laboratory reports are provided in Appendix I and tabulated on Table 1.
Laboratory Analysis
PCB Aroclors were not detected above the laboratory reporting limit (RQ in the electrical transformer area.
However, NCDEQ has established Division of Waste Management, Inactive Hazardous Sites Branch (IHSB)
preliminary soil remediation goals (PSRGs) for the 12 dioxin -like PCB congeners. NCDEQ guidelines require the
remaining 197 non -dioxin like PCB congeners concentrations to be totaled and the sum compared to the "PCBs
(high risk)" PSRG. As shown on Table 1 and Figure 3, the total sum or equivalent concentrations of the non -
dioxin like PCB congeners were below their respective "PCBs (high risk)" PSRGs.
January 24, 2023

Excavation and Disposal of PCB -Impacted Soils
Welcome Venture Park/Eno Industrial Park '
Durham, North Carolina III
Brownfields Project No. 25097-21-032 E
S&ME Project No. 218154A
Limited Source Removal Activities — December 2022
The excavation activities were based on the pre -excavation confirmation soil sampling completed during July 2022
summarized above and the Environmental Management Plan (EMP) approved by NCBP on December 16, 2022.
S&ME personnel and our remediation contractor, EVO Corporation, Inc (EVO), mobilized on December 19, 2022 to
excavate the PCB -impacted soils identified in Figure 3. A total of 35.41 tons of PCB -impacted soils, the
transformer carcass and power pole were transported and disposed at the Republic Services Upper Piedmont
Landfill in Rougemont, North Carolina. The final limits of excavation were approximately 25 feet by 25 feet with a
minimum depth of 12 inches with over -excavation resulting in final depths ranging from 15 inches to 16 inches.
S&ME's field notes are provided in Appendix II, a photographic log of the source removal and disposal process is
provided in Appendix III and a copy of the Non -Hazardous Waste Manifest is provided in Appendix IV.
Recommendations
Based on the activities completed by S&ME during 2022, the abandoned electrical transformer and PCB -impacted
soils from dielectric fluid releases were delineated, excavated, and removed from the Brownfields site, including
the pole -mounted electrical transformer equipment.
S&ME does not recommend further testing and/or excavation in this area of the site. S&ME recommends that
soils in this area be managed by WVP's General Contractor in accordance with the NCBP-approved EMP.
Closure
Information provided in this report was provided by S&ME on behalf of the prospective developer, Welcome
Venture Park, LLC . If you have any questions about this report, please contact the undersigned.
Sincerely,
S&ME, Inc.
Lucas A. Barroso-Giachetti, P.E., CHMM
Senior Environmental Engineer
[e-mail]
Samuel P. Watts, P.G.
Principal Geologist/Sr. Environmental Consultant
[e-mail]
cc: Sharon Eckard ([e-mail]) — NC Brownfields Program
Ted Kakambouras ([e-mail]) — Welcome Group
Attachments
January 24, 2023

Figures

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Proposed Sample
Lo
cations
tions
ofGas Implant o ` 400. soo ��ry -`� '' / I'`i'\ ,`,` `` \\� % ,,��, Monitor Well
�-
\.
(FEET) --
_ Approximate Building Outlines
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Q
z
O
0 Q
V
Cr
LU
CL O }
O z
z 0 Z)
j O O
O Q
j z
LU
= a
0
SCALE:
1 " = 400 '
DATE:
4-29-22
PROJECT NUMBER
218154
FIGURE NO

2
X
ET-W-1 (1 ft-bgs)
Constituent mg/kg
PCB Aroclors <0.131
PCB Congeners <TE r
Acetone 0.337
ET-113-1 (1 ft-bgs)
Constituent mg/kg
PCB Aroclors <0.131
majawoM PCB Congeners <TE
'04w' o--to Acetone 0.337
a`"t
2-Butanone (MEK) 0.00712
ET-DUP (1 ft-bgs)
Constituent mg/kg
PCB Aroclors <0.131
*01,111111, PCB Congeners <TE 4* 4
Acetone 0.037
1nA==W
►�"
0
ET-N-1 (1 ft-bgs)
Constituent
mg/kg
PCB Aroclors
<0.131
PCB Congeners
<TE
Acetone
0.132
ET-E-1 (1 ft-bgs)
Constituent mg/kg
PCB Arochlors <0.131
PCB Congeners <TE
Acetone 0.117
WV
ET-S-1 (1 ft-bgs)
Constituent mg/kg40000
PCB Aroclors <0.131
PCB Congeners <TEV$It, �'�
Acetone 0.347
2-Butanone (MEK) 0.00906
'*,
NOTES:
Samples were collected on July 27, 2022 P�M�
TE = Total Equivalent concentration for PCB Congeners. ; Z�e
REFERENCE:'
GIS BASE LAYERS WERE OBTAINED FROM THE NCONEMAP.COM
LATEST_ORTHOIMAGERY BASEMAP LAYER. THIS MAP IS FOR INFORMATIONAL
PURPOSES ONLY. ALL FEATURE LOCATIONS DISPLAYED ARE APPROXIMATED.
THEY ARE NOT BASED ON CIVIL SURVEY INFORMATION, UNLESS STATED Q
OTHERWISE. ..eeV��' 's+'3MiA�+► ►, '►
AI
ET SOIL SAMPLES
■ ELECTRICAL TRANSFORMER
SOIL BORING SAMPLE LOCATION
SUBJECT PROPERTY
J APPROXIMATE BUILDING OUTLINES
z
" � J
" p Q
y Q U
W C
CIL
a O z
O � L}
CcWn Pzz
Z z p
w J O
w O
" U Q =
w z
U - p
aH =a
)U
a � �
y W p
p
SCALE:
1"=25'
DATE:
10-19-22
PROJECT NUMBER
218154
FIGURE NO
3

Tables

TABLE 1
Soil Analytical Results for PCBs
Welcome Venture Park / Eno Industrial Park
1420 Old Oxford Road, 1225 Hamlin Road, 1507 Hamlin Road and 1539 Hamlin Road
Durham, Durham County, North Carolina
S&ME Project No. 218154A/ Brownfields Project No.: 25097-21-032
EPA Analytical Methods
PCB Aroclors by 8082A
PCB Congeners by 1668
VOCs by 8260D
SVOCs by 8270E
Detected Constituents
N
m
oo
u-,
100
v
v
m
m
10
N
to
r--
n
0,
o,76v
m
w
?
N
m
>
O
O
O
O
O
O
O•-
I�
m
00
m
ip
>
C
N
N
a
¢
a
¢
a
¢
a
a
a
m
U
m
U
m
m
U
m
U
m
U
m
U
m
U
m
U
m
U
ysj
a
C
V
Sample Depth
Date
m
Co
m
m
m
m
m
r
Sample ID
U
U
U
U
U
U
a
N
(ft-bgs)
Collected
ET-N-1
1
7/27/22
<0.131
<0.131
<0.131
<0.131
<0.131
<0.131
<0.131
0.0000011
0.000000837
0.00000183
0.00000113
0.00000366
0.00000118
0.0000015
0.00000165
0.00000165
0.00000167
0.00000165
0.00000149
0.0000002
0.132
<0.00545
<MDL
ET-S-1
1
7/27/22
<0.161
<0.161
<0.161
<0.161
<0.161
<0.161
<0.161
<0.000000112
<0.0000000425
0.00000106
<0.0000000996
0.00000176
0.000000176
0.00000012
0.000000599
0.000000307
0.000000307
<0.000000065
<0.00000014
0.0000000121
0.347
0.00906
<MDL
ET-E-1
1
7/27/22
<0.112
<0.112
<0.112
<0.112
<0.112
<0.112
<0.112
<0.0000000426
<0.0000000504
0.000000163
<0.0000000824
0.000000371
<0.0000000811
<0.0000000674
0.000000109
<0.000000081
0.00000026
<0.0000000433
<0.00000008
0.000000000027
0.117
<0.005
<MDL
ET-W-1
1
7/27/22
<0.108
<0.108
<0.108
<0.108
<0.108
<0.108
<0.108
<0.00000104
0.00000087
<0.00000294
<0.00000102
0.000000897
<0.000000167
<0.00000014
<0.00000034
0.000000386
0.000000685
<0.000000139
<0.000000308
0.000000000085
0.337
<0.0078
<MDL
ET-B-1
1
7/27/22
<0.116
<0.116
<0.116
<0.116
<0.116
<0.116
<0.116
0.000000199
0.000000168
0.000000282
0.000000213
<0000000686
0.000000236
<0.000000234
1 <0.000000255
0.000000281
0.000000325
<0.000000216
<0.000000228
0.00000000011
0.181
0.00712
<MDL
ET-DUP
1
7/27/22
<0.108
<0.108
1 <0.108
<0.108
<0.108
1 <0.108
<0.108
1 Not Analyzed
0.037
<0.00503
<MDL
Industrial/ Commercial Health Based PSRGs
10
0.84
0.73
0.95
0.94
0.97
0.99
1.60E-01
4.80E-02
4.90E-01
5.10E-01
4.90E-01
5.00E-01
1.50E-04
5.10E-01
5.10E-01
5.10E-01
5.10E-04
5.20E-01
9.50E-01
210,000
0.84
multiple
Residential Health Basded PSRGs
0.82
0.2
0.18
0.23
0.23
0.23
0.24
3.80E-02
1.20E-02
1.20E-01
1.20E-01
1.20E-01
1.20E-01
3.60E-OS
1.20E-01
1.20E-01
1.20E-01
1.20E-04
1.30E-01
2.30E-01
14,000
0.20
multiple
Protection of Groundwater PSRGs
0.94
0.0059
0.0059
0.055
0.054
0.091
0.24
8.40E-03
2.80E-03
4.70E-02
4.70E-02
4.60E-02
4.70E-02
1.40E-05
7.70E-02
7.70E-02
7.50E-02
7.50E-05
1.30E-01
5.50E-02
25
0.0059
multiple
Notes:
Concentrations are reported in milligrams per kilogram (mg/kg).
PSRG (Preliminary Soil Remediation Goal), NCDEQ Inactive Hazardous Sites Branch, July 2022 based on July 2022 USEPA Regional Screening Tables.
ft-bgs: feet below ground surface.
ET-DUP collected at ET-B-1.

Appendix I
Analytical Laboratory Reports

yENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23237 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Laboratory Order ID 22HO122
Client Name: S&ME - Raleigh Date Received: August 1, 2022 10:07
3201 Spring Forest Road Date Issued: August 11, 2022 14:28
Raleigh, NC 27616 Project Number: [none]
Submitted To: Sam Watts Purchase Order:
Client Site I.D.: Welcome Ventures
Enclosed are the results of analyses for samples received by the laboratory on 08/01/2022 10:07. If you have
any questions concerning this report, please feel free to contact the laboratory.
Sincerely,
End Notes:
The test results listed in this report relate only to the samples submitted to the laboratory and as received by the Laboratory.
Unless otherwise noted, the test results for solid materials are calculated on a wet weight basis. Analyses for pH, dissolved oxygen,
temperature, residual chlorine and sulfite that are performed in the laboratory do not meet NELAC requirements due to extremely
short holding times. These analyses should be performed in the field. The results of field analyses performed by the Sampler
included in the Certificate of Analysis are done so at the client's request and are not included in the laboratory's fields of certification
nor have they been audited for adherence to a reference method or procedure.
The signature on the final report certifies that these results conform to all applicable NELAC standards unless otherwise specified.
For a complete list of the Laboratory's NELAC certified parameters please contact customer service.
This report shall not be reproduced except in full without the expressed and written approval of an authorized representative of
Enthalpy Analytical.
�pQ p«FO
2e'
'49
TNI Accredited
VELAP ID 460021
Page 1 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
ANALYTICAL REPORT FOR SAMPLES
Laboratory Order ID 22HO122
Sample ID
Laboratory ID
Matrix
Date Sampled
Date Received
ET-N-1
22HO122-01
Soil
07/27/202215:00
08/01/202210:07
ET-S-1
22HO122-02
Soil
07/27/202213:40
08/01/202210:07
ET-E-1
22HO122-03
Soil
07/27/202214:05
08/01/202210:07
ET-W-1
22HO122-04
Soil
07/27/202214:30
08/01/202210:07
ET-B-1
22HO122-05
Soil
07/27/202214:45
08/01/202210:07
ET-DUP
22HO122-16
Soil
07/27/2022 00:00
08/01/2022 10:07
Page 2 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-N-1
Grab Date/Time:
Field Residual Cl:
07/27/2022 15:00
Laboratory Sample ID: 22HO122-01
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual Limit
D.F.
Date/Time
Date/Time
Analyst
Volatile Organic Compounds by GCMS
1,1,1,2-Tetrachloroethane
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
1,1,1-Trichloroethane
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
1,1,2,2-Tetrachloroethane
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
1,1,2-Trichloroethane
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
1,1-Dichloroethane
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
1,1-Dichloroethylene
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
1,1-Dichloropropene
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
1,2,3-Trichlorobenzene
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
1,2,3-Trichloropropane
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
1,2,4-Trichlorobenzene
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
1,2,4-Trimethyl benzene
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
1,2-Dibromo-3-chloropropane
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
(DBCP)
1,2-Dibromoethane (EDB)
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
1,2-Dichlorobenzene
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
1,2-Dichloroethane
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
1,2-Dichloropropane
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
1,3,5-Trimethylbenzene
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
1,3-Dichlorobenzene
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
1,3-Dichloropropane
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
1,4-Dichlorobenzene
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
2,2-Dichloropropane
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
2-Butanone (MEK)
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
2-Chlorotoluene
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
2-Hexanone (MBK)
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
4-Chlorotoluene
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
Page 3 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-N-1
Grab Date/Time:
Field Residual Cl:
07/27/2022 15:00
Laboratory Sample ID: 22HO122-01
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual Limit
D.F.
Date/Time
Date/Time
Analyst
Volatile Organic Compounds by GCMS
4-Isopropyltoluene
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
4-Methyl-2-pentanone (MIBK)
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
Acetone
01
SW8260D
132 ug/kg dry
10.9
1
08/03/22 18:20
08/03/22 18:20
RJB
Benzene
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
Bromobenzene
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
Bromochloromethane
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
Bromodichloromethane
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
Bromoform
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
Bromomethane
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
Carbon disulfide
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
Carbon tetrachloride
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
Chlorobenzene
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
Chloroethane
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
Chloroform
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
Chloromethane
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
cis- 1,2-Dichloroethylene
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
cis- 1,3-Dichloropropene
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
Dibromochloromethane
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
Dibromomethane
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
Dichlorodifluoromethane
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
Di -isopropyl ether (DIPE)
01
SW8260D
<5.45 ug/kg dry
C 5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
Ethylbenzene
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
Hexachlorobutadiene
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
Iodomethane
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
Isopropyl benzene
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
m+p-Xylenes
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
Page 4 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-N-1
Grab Date/Time: 07/27/2022 15:00
Laboratory Sample ID: 22HO122-01
Field Residual Cl: Field pH:
Reporting Sample Prep Analysis
Parameter Samp ID Method Result Qual Limit D.F. Date/Time Date/Time Analyst
Volatile Organic Compounds by GCMS
Methylene chloride
01
SW8260D
<5.45 ug/kg dry
5.45
1 08/03/22 18:20
08/03/22 18:20
RJB
Methyl-t-butyl ether (MTBE)
01
SW8260D
<5.45 ug/kg dry
5.45
1 08/03/22 18:20
08/03/22 18:20
RJB
Naphthalene
01
SW8260D
<5.45 ug/kg dry
5.45
1 08/03/22 18:20
08/03/22 18:20
RJB
n-Butylbenzene
01
SW8260D
<5.45 ug/kg dry
5.45
1 08/03/22 18:20
08/03/22 18:20
RJB
n-Propylbenzene
01
SW8260D
<5.45 ug/kg dry
5.45
1 08/03/22 18:20
08/03/22 18:20
RJB
o-Xylene
01
SW8260D
<5.45 ug/kg dry
5.45
1 08/03/22 18:20
08/03/22 18:20
RJB
sec- Butylbenzene
01
SW8260D
<5.45 ug/kg dry
5.45
1 08/03/22 18:20
08/03/22 18:20
RJB
Styrene
01
SW8260D
<5.45 ug/kg dry
5.45
1 08/03/22 18:20
08/03/22 18:20
RJB
tert-Butyl benzene
01
SW8260D
<5.45 ug/kg dry
5.45
1 08/03/22 18:20
08/03/22 18:20
RJB
Tetrachloroethylene (PCE)
01
SW8260D
<5.45 ug/kg dry
5.45
1 08/03/22 18:20
08/03/22 18:20
RJB
Toluene
01
SW8260D
<5.45 ug/kg dry
5.45
1 08/03/22 18:20
08/03/22 18:20
RJB
trans-1,2-Dichloroethylene
01
SW8260D
<5.45 ug/kg dry
5.45
1 08/03/22 18:20
08/03/22 18:20
RJB
trans-1,3-Dichloropropene
01
SW8260D
<5.45 ug/kg dry
5.45
1 08/03/22 18:20
08/03/22 18:20
RJB
Trichloroethylene
01
SW8260D
<5.45 ug/kg dry
5.45
1 08/03/22 18:20
08/03/22 18:20
RJB
Trichlorofluoromethane
01
SW8260D
<5.45 ug/kg dry
5.45
1 08/03/22 18:20
08/03/22 18:20
RJB
Vinyl acetate
01
SW8260D
<10.9 ug/kg dry
10.9
1 08/03/22 18:20
08/03/22 18:20
RJB
Vinyl chloride
01
SW8260D
<5.45 ug/kg dry
5.45
1 08/03/22 18:20
08/03/22 18:20
RJB
Xylenes, Total
01
SW8260D
<16.3 ug/kg dry
16.3
1 08/03/22 18:20
08/03/22 18:20
RJB
- - - - - - - - - - - -
Surr: 1,2-Dichloroethane-d4
- - - -
01
- - - - - - -
SW8260D
- - - - - - - - - -
120 %
- - - - - - - -
S 80-120
- - - - - - - - -
08/03/22 18:20
- - - - - - -
08/03/22 18:20
- - -
RJB
(Surr)
Surr: 4-Bromofluorobenzene
01
SW8260D
94.2 %
85-120
08103122 18:20
08103122 18:20
RJB
(Surr)
Surr: Dibromofluoromethane
01
SW8260D
102 %
80-130
08/03/22 18:20
08/03/22 18:20
RJB
(Surr)
Surr.- Toluene-d8 (Surr)
01
SW8260D
101 %
85-115
08/03/22 18:20
08/03/22 18:20
RJB
Semivolatile Organic Compounds by GCMS
Page 5 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-N-1
Grab Date/Time:
Field Residual Cl:
07/27/2022 15:00
Laboratory Sample ID: 22HO122-01
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual Limit
D.F.
Date/Time
Date/Time
Analyst
Semivolatile Organic Compounds by GCMS
1,2,4,5-Tetrachlorobenzene
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
1,2,4-Trichlorobenzene
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
1,2-Dichlorobenzene
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
1,2-Diphenylhydrazine
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
1,3-Dichlorobenzene
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
1,4-Dichlorobenzene
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
1-Chloronaphthalene
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
1-Naphthylamine
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
2,3,4,6-Tetrachlorophenol
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
2,4,5-Trichlorophenol
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
2,4,6-Trichlorophenol
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
2,4-Dichlorophenol
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
2,4-Dimethylphenol
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
2,4-Dinitrophenol
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
2,4-Dinitrotoluene
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
2,6-Dichlorophenol
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
2,6-Dinitrotoluene
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
2-Chloronaphthalene
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
2-Chlorophenol
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
2-Methylnaphthalene
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
2-Naphthylamine
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
2-Nitroaniline
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
2-Nitrophenol
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
3,3'-Dichlorobenzidine
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
3-Methylcholanthrene
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
3-Nitroaniline
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Page 6 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-N-1
Grab Date/Time:
Field Residual Cl:
07/27/2022 15:00
Laboratory Sample ID: 22HO122-01
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual Limit
D.F.
Date/Time
Date/Time
Analyst
Semivolatile Organic Compounds by GCMS
4,6-Dinitro-2-methylphenol
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
4-Aminobiphenyl
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
4-Bromophenyl phenyl ether
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
4-Chloroaniline
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
4-Chlorophenyl phenyl ether
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
4-Nitroaniline
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
4-Nitrophenol
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
7,12-Dimethylbenz (a)
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
anthracene
Acenaphthene
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Acenaphthylene
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Acetophenone
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Aniline
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Anthracene
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Benzidine
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Benzo (a) anthracene
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Benzo (a) pyrene
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Benzo (b) fluoranthene
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Benzo (g,h,i) perylene
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Benzo (k) fluoranthene
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Benzoic acid
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Benzyl alcohol
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
bis (2-Chloroethoxy) methane
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
bis (2-Chloroethyl) ether
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
2,2'-Oxybis (1-chloropropane)
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
bis (2-Ethylhexyl) phthalate
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Page 7 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-N-1
Grab Date/Time:
Field Residual Cl:
07/27/2022 15:00
Laboratory Sample ID: 22HO122-01
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual Limit
D.F.
Date/Time
Date/Time
Analyst
Semivolatile Organic Compounds by GCMS
Butyl benzyl phthalate
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Chrysene
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Dibenz (a,h) anthracene
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Dibenz (a,j) acridine
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Dibenzofuran
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Diethyl phthalate
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Dimethyl phthalate
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Di-n-butyl phthalate
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Di-n-octyl phthalate
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Diphenylamine
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Ethyl methanesulfonate
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Fluoranthene
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Fluorene
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Hexachlorobenzene
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Hexachlorobutadiene
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Hexachlorocyclopentadiene
01
SW8270E
<102 ug/kg dry
C 102
1
08/03/22 12:15
08/04/22 20:23
MGG
Hexachloroethane
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Indeno (1,2,3-cd) pyrene
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Isophorone
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
m+p-Cresols
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Methyl methanesulfonate
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Naphthalene
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Nitrobenzene
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
n-Nitrosodimethylamine
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
n-Nitrosodi-n-butylamine
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
n-Nitrosodi-n-propylamine
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Page 8 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-N-1
Grab Date/Time: 07/27/2022 15:00
Laboratory Sample ID: 22HO122-01
Field Residual Cl: Field pH:
Reporting Sample Prep Analysis
Parameter Samp ID Method Result Qual Limit D.F. Date/Time Date/Time Analyst
Semivolatile Organic Compounds by GCMS
n-Nitrosodiphenylamine
01
SW8270E
<102 ug/kg dry
102
1 08/03/22 12:15
08/04/22 20:23
MGG
n-Nitrosopiperidine
01
SW8270E
<102 ug/kg dry
102
1 08/03/22 12:15
08/04/22 20:23
MGG
o+m+p-Cresols
01
SW8270E
<102 ug/kg dry
102
1 08/03/22 12:15
08/04/22 20:23
MGG
o-Cresol
01
SW8270E
<102 ug/kg dry
102
1 08/03/22 12:15
08/04/22 20:23
MGG
p-(Dimethylamino)
01
SW8270E
<102 ug/kg dry
102
1 08/03/22 12:15
08/04/22 20:23
MGG
azobenzene
p-Chloro-m-cresol
01
SW8270E
<102 ug/kg dry
102
1 08/03/22 12:15
08/04/22 20:23
MGG
Pentachloronitrobenzene
01
SW8270E
<102 ug/kg dry
102
1 08/03/22 12:15
08/04/22 20:23
MGG
(quintozene)
Pentachlorophenol
01
SW8270E
<102 ug/kg dry
102
1 08/03/22 12:15
08/04/22 20:23
MGG
Phenacetin
01
SW8270E
<102 ug/kg dry
102
1 08/03/22 12:15
08/04/22 20:23
MGG
Phenanthrene
01
SW8270E
<102 ug/kg dry
102
1 08/03/22 12:15
08/04/22 20:23
MGG
Phenol
01
SW8270E
<102 ug/kg dry
102
1 08/03/22 12:15
08/04/22 20:23
MGG
Pronamide
01
SW8270E
<102 ug/kg dry
102
1 08/03/22 12:15
08/04/22 20:23
MGG
Pyrene
01
SW8270E
<102 ug/kg dry
102
1 08/03/22 12:15
08/04/22 20:23
MGG
Pyridine
01
SW8270E
<102 ug/kg dry
102
1 08/03/22 12:15
08/04/22 20:23
MGG
- - - - - - - - - - - -
Surr.- 2,4,6-Tribromophenol
- - - -
01
- - - - - - -
SW8270E
- - - - - - - - - - -
66.2 %
- - - - - -
15-96
- - - - - - - - -
08/03/22 12:15
- - - - - - -
08/04/22 20:23
- - -
MGG
(Surr)
Surr.- 2-Fluorobiphenyl (Surr)
01
SW8270E
70.4 %
19-105
08/03/22 12:15
08104122 20:23
MGG
Surr: 2-Fluorophenol (Surr)
01
SW8270E
53.3 %
12-95
08/03/22 12:15
08/04/22 20:23
MGG
Surr: Nitrobenzene-d5 (Surr)
01
SW8270E
65.3 %
21-100
08103122 12:15
08104122 20:23
MGG
Surr.- Phenol-d5 (Surr)
01
SW8270E
65.6 %
13-100
08/03/22 12:15
08104122 20:23
MGG
Surr: p-Terphenyl-d14 (Surr)
01
SW8270E
59.9 %
25-125
08/03/22 12:15
08/04/22 20:23
MGG
Organochlorine Pesticides and PCBs by GC/ECD
PCB as Aroclor 1016
01
SW8082A
<0.131 mg/kg dry
0.131
1 08/08/22 09:40
08/09/22 13:24
LBH2
PCB as Aroclor 1221
01
SW8082A
<0.131 mg/kg dry
0.131
1 08/08/22 09:40
08/09/22 13:24
LBH2
Page 9 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Analytical Results
Sample I.D. ET-N-1
Grab Date/Time:
Field Residual Cl:
Laboratory Order ID: 22HO122
07/27/2022 15:00
Laboratory Sample ID: 22HO122-01
Field pH:
Reporting Sample Prep Analysis
Parameter Samp ID Method Result Qual Limit D.F. Date/Time Date/Time Analyst
Organochlorine Pesticides and PCBs by GC/ECD
PCB as Aroclor 1232
01
SW8082A
<0.131 mg/kg dry
0.131
1 08/08/22 09:40
08/09/22 13:24
LBH2
PCB as Aroclor 1242
01
SW8082A
<0.131 mg/kg dry
0.131
1 08/08/22 09:40
08/09/22 13:24
LBH2
PCB as Aroclor 1248
01
SW8082A
<0.131 mg/kg dry
0.131
1 08/08/22 09:40
08/09/22 13:24
LBH2
PCB as Aroclor 1254
01
SW8082A
<0.131 mg/kg dry
0.131
1 08/08/22 09:40
08/09/22 13:24
LBH2
PCB as Aroclor 1260
01
SW8082A
<0.131 mg/kg dry
0.131
1 08/08/22 09:40
08/09/22 13:24
LBH2
- - - - - - - - - - - -
Surr: DCB
- - - -
01
- - - - - - -
SW8082A
- - - - - - - - - - - -
82.3 %
- - - - - -
30-105
- - - - - - - - -
08/08/22 09:40
- - - - - - -
08/09/22 13:24
- - -
LBH2
Surr: TCMX
01
SW8082A
53.5 %
30-105
08/08/22 09:40
08/09/22 13:24
LBH2
Wet Chemistry Analysis
Percent Solids
01
SM22
75.4 %
0.10
1 08/04/22 10:02
08/04/22 10:02
MAH
2540G-2011
Page 10 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-S-1
Grab Date/Time:
Field Residual Cl:
07/27/2022 13:40
Laboratory Sample ID: 22HO122-02
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual Limit
D.F.
Date/Time
Date/Time
Analyst
Volatile Organic Compounds by GCMS
1,1,1,2-Tetrachloroethane
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
1,1,1-Trichloroethane
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
1,1,2,2-Tetrachloroethane
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
1,1,2-Trichloroethane
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
1,1-Dichloroethane
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
1,1-Dichloroethylene
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
1,1-Dichloropropene
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
1,2,3-Trichlorobenzene
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
1,2,3-Trichloropropane
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
1,2,4-Trichlorobenzene
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
1,2,4-Trimethyl benzene
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
1,2-Dibromo-3-chloropropane
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
(DBCP)
1,2-Dibromoethane (EDB)
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
1,2-Dichlorobenzene
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
1,2-Dichloroethane
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
1,2-Dichloropropane
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
1,3,5-Trimethylbenzene
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
1,3-Dichlorobenzene
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
1,3-Dichloropropane
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
1,4-Dichlorobenzene
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
2,2-Dichloropropane
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
2-Butanone (MEK)
02
SW8260D
9.06 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
2-Chlorotoluene
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
2-Hexanone (MBK)
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
4-Chlorotoluene
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
Page 11 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-S-1
Grab Date/Time:
Field Residual Cl:
07/27/2022 13:40
Laboratory Sample ID: 22HO122-02
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual Limit
D.F.
Date/Time
Date/Time
Analyst
Volatile Organic Compounds by GCMS
4-Isopropyltoluene
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
4-Methyl-2-pentanone (MIBK)
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
Acetone
02
SW8260D
347 ug/kg dry
11.6
1
08/03/22 18:46
08/03/22 18:46
RJB
Benzene
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
Bromobenzene
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
Bromochloromethane
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
Bromodichloromethane
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
Bromoform
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
Bromomethane
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
Carbon disulfide
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
Carbon tetrachloride
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
Chlorobenzene
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
Chloroethane
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
Chloroform
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
Chloromethane
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
cis- 1,2-Dichloroethylene
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
cis- 1,3-Dichloropropene
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
Dibromochloromethane
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
Dibromomethane
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
Dichlorodifluoromethane
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
Di -isopropyl ether (DIPE)
02
SW8260D
<5.78 ug/kg dry
C 5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
Ethylbenzene
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
Hexachlorobutadiene
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
Iodomethane
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
Isopropyl benzene
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
m+p-Xylenes
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
Page 12 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-S-1
Grab Date/Time: 07/27/2022 13:40
Laboratory Sample ID: 22HO122-02
Field Residual Cl: Field pH:
Reporting Sample Prep Analysis
Parameter Samp ID Method Result Qual Limit D.F. Date/Time Date/Time Analyst
Volatile Organic Compounds by GCMS
Methylene chloride
02
SW8260D
<5.78 ug/kg dry
5.78
1 08/03/22 18:46
08/03/22 18:46
RJB
Methyl-t-butyl ether (MTBE)
02
SW8260D
<5.78 ug/kg dry
5.78
1 08/03/22 18:46
08/03/22 18:46
RJB
Naphthalene
02
SW8260D
<5.78 ug/kg dry
5.78
1 08/03/22 18:46
08/03/22 18:46
RJB
n-Butylbenzene
02
SW8260D
<5.78 ug/kg dry
5.78
1 08/03/22 18:46
08/03/22 18:46
RJB
n-Propylbenzene
02
SW8260D
<5.78 ug/kg dry
5.78
1 08/03/22 18:46
08/03/22 18:46
RJB
o-Xylene
02
SW8260D
<5.78 ug/kg dry
5.78
1 08/03/22 18:46
08/03/22 18:46
RJB
sec- Butylbenzene
02
SW8260D
<5.78 ug/kg dry
5.78
1 08/03/22 18:46
08/03/22 18:46
RJB
Styrene
02
SW8260D
<5.78 ug/kg dry
5.78
1 08/03/22 18:46
08/03/22 18:46
RJB
tert-Butyl benzene
02
SW8260D
<5.78 ug/kg dry
5.78
1 08/03/22 18:46
08/03/22 18:46
RJB
Tetrachloroethylene (PCE)
02
SW8260D
<5.78 ug/kg dry
5.78
1 08/03/22 18:46
08/03/22 18:46
RJB
Toluene
02
SW8260D
<5.78 ug/kg dry
5.78
1 08/03/22 18:46
08/03/22 18:46
RJB
trans-1,2-Dichloroethylene
02
SW8260D
<5.78 ug/kg dry
5.78
1 08/03/22 18:46
08/03/22 18:46
RJB
trans-1,3-Dichloropropene
02
SW8260D
<5.78 ug/kg dry
5.78
1 08/03/22 18:46
08/03/22 18:46
RJB
Trichloroethylene
02
SW8260D
<5.78 ug/kg dry
5.78
1 08/03/22 18:46
08/03/22 18:46
RJB
Trichlorofluoromethane
02
SW8260D
<5.78 ug/kg dry
5.78
1 08/03/22 18:46
08/03/22 18:46
RJB
Vinyl acetate
02
SW8260D
<11.6 ug/kg dry
11.6
1 08/03/22 18:46
08/03/22 18:46
RJB
Vinyl chloride
02
SW8260D
<5.78 ug/kg dry
5.78
1 08/03/22 18:46
08/03/22 18:46
RJB
Xylenes, Total
02
SW8260D
<17.3 ug/kg dry
17.3
1 08/03/22 18:46
08/03/22 18:46
RJB
- - - - - - - - - - - -
Surr: 1,2-Dichloroethane-d4
- - - -
02
- - - - - - -
SW8260D
- - - - - - - - - -
122 %
- - - - - - - -
S 80-120
- - - - - - - - -
08/03/22 18:46
- - - - - - -
08/03/22 18:46
- - -
RJB
(Surr)
Surr: 4-Bromofluorobenzene
02
SW8260D
91.9 %
85-120
08103122 18:46
08103122 18:46
RJB
(Surr)
Surr: Dibromofluoromethane
02
SW8260D
102 %
80-130
08/03/22 18:46
08/03/22 18:46
RJB
(Surr)
Surr.- Toluene-d8 (Surr)
02
SW8260D
103 %
85-115
08/03/22 18:46
08/03/22 18:46
RJB
Semivolatile Organic Compounds by GCMS
Page 13 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-S-1
Grab Date/Time:
Field Residual Cl:
07/27/2022 13:40
Laboratory Sample ID: 22HO122-02
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual Limit
D.F.
Date/Time
Date/Time
Analyst
Semivolatile Organic Compounds by GCMS
1,2,4,5-Tetrachlorobenzene
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
1,2,4-Trichlorobenzene
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
1,2-Dichlorobenzene
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
1,2-Diphenylhydrazine
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
1,3-Dichlorobenzene
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
1,4-Dichlorobenzene
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
1-Chloronaphthalene
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
1-Naphthylamine
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
2,3,4,6-Tetrachlorophenol
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
2,4,5-Trichlorophenol
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
2,4,6-Trichlorophenol
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
2,4-Dichlorophenol
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
2,4-Dimethylphenol
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
2,4-Dinitrophenol
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
2,4-Dinitrotoluene
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
2,6-Dichlorophenol
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
2,6-Dinitrotoluene
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
2-Chloronaphthalene
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
2-Chlorophenol
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
2-Methylnaphthalene
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
2-Naphthylamine
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
2-Nitroaniline
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
2-Nitrophenol
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
3,3'-Dichlorobenzidine
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
3-Methylcholanthrene
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
3-Nitroaniline
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Page 14 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-S-1
Grab Date/Time:
Field Residual Cl:
07/27/2022 13:40
Laboratory Sample ID: 22HO122-02
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual Limit
D.F.
Date/Time
Date/Time
Analyst
Semivolatile Organic Compounds by GCMS
4,6-Dinitro-2-methylphenol
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
4-Aminobiphenyl
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
4-Bromophenyl phenyl ether
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
4-Chloroaniline
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
4-Chlorophenyl phenyl ether
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
4-Nitroaniline
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
4-Nitrophenol
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
7,12-Dimethylbenz (a)
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
anthracene
Acenaphthene
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Acenaphthylene
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Acetophenone
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Aniline
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Anthracene
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Benzidine
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Benzo (a) anthracene
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Benzo (a) pyrene
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Benzo (b) fluoranthene
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Benzo (g,h,i) perylene
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Benzo (k) fluoranthene
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Benzoic acid
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Benzyl alcohol
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
bis (2-Chloroethoxy) methane
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
bis (2-Chloroethyl) ether
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
2,2'-Oxybis (1-chloropropane)
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
bis (2-Ethylhexyl) phthalate
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Page 15 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-S-1
Grab Date/Time:
Field Residual Cl:
07/27/2022 13:40
Laboratory Sample ID: 22HO122-02
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual Limit
D.F.
Date/Time
Date/Time
Analyst
Semivolatile Organic Compounds by GCMS
Butyl benzyl phthalate
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Chrysene
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Dibenz (a,h) anthracene
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Dibenz (a,j) acridine
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Dibenzofuran
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Diethyl phthalate
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Dimethyl phthalate
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Di-n-butyl phthalate
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Di-n-octyl phthalate
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Diphenylamine
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Ethyl methanesulfonate
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Fluoranthene
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Fluorene
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Hexachlorobenzene
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Hexachlorobutadiene
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Hexachlorocyclopentadiene
02
SW8270E
<96.2 ug/kg dry
C 96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Hexachloroethane
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Indeno (1,2,3-cd) pyrene
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Isophorone
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
m+p-Cresols
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Methyl methanesulfonate
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Naphthalene
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Nitrobenzene
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
n-Nitrosodimethylamine
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
n-Nitrosodi-n-butylamine
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
n-Nitrosodi-n-propylamine
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Page 16 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-S-1
Grab Date/Time: 07/27/2022 13:40
Laboratory Sample ID: 22HO122-02
Field Residual Cl: Field pH:
Reporting Sample Prep Analysis
Parameter Samp ID Method Result Qual Limit D.F. Date/Time Date/Time Analyst
Semivolatile Organic Compounds by GCMS
n-Nitrosodiphenylamine
02
SW8270E
<96.2 ug/kg dry
96.2
1 08/03/22 12:15
08/04/22 20:58
MGG
n-Nitrosopiperidine
02
SW8270E
<96.2 ug/kg dry
96.2
1 08/03/22 12:15
08/04/22 20:58
MGG
o+m+p-Cresols
02
SW8270E
<96.2 ug/kg dry
96.2
1 08/03/22 12:15
08/04/22 20:58
MGG
o-Cresol
02
SW8270E
<96.2 ug/kg dry
96.2
1 08/03/22 12:15
08/04/22 20:58
MGG
p-(Dimethylamino)
02
SW8270E
<96.2 ug/kg dry
96.2
1 08/03/22 12:15
08/04/22 20:58
MGG
azobenzene
p-Chloro-m-cresol
02
SW8270E
<96.2 ug/kg dry
96.2
1 08/03/22 12:15
08/04/22 20:58
MGG
Pentachloronitrobenzene
02
SW8270E
<96.2 ug/kg dry
96.2
1 08/03/22 12:15
08/04/22 20:58
MGG
(quintozene)
Pentachlorophenol
02
SW8270E
<96.2 ug/kg dry
96.2
1 08/03/22 12:15
08/04/22 20:58
MGG
Phenacetin
02
SW8270E
<96.2 ug/kg dry
96.2
1 08/03/22 12:15
08/04/22 20:58
MGG
Phenanthrene
02
SW8270E
<96.2 ug/kg dry
96.2
1 08/03/22 12:15
08/04/22 20:58
MGG
Phenol
02
SW8270E
<96.2 ug/kg dry
96.2
1 08/03/22 12:15
08/04/22 20:58
MGG
Pronamide
02
SW8270E
<96.2 ug/kg dry
96.2
1 08/03/22 12:15
08/04/22 20:58
MGG
Pyrene
02
SW8270E
<96.2 ug/kg dry
96.2
1 08/03/22 12:15
08/04/22 20:58
MGG
Pyridine
02
SW8270E
<96.2 ug/kg dry
96.2
1 08/03/22 12:15
08/04/22 20:58
MGG
- - - - - - - - - - - -
Surr.- 2,4,6-Tribromophenol
- - - -
02
- - - - - - -
SW8270E
- - - - - - - - - - -
69.6 %
- - - - - -
15-96
- - - - - - - - -
08/03/22 12:15
- - - - - - -
08/04/22 20:58
- - -
MGG
(Surr)
Surr.- 2-Fluorobiphenyl (Surr)
02
SW8270E
71.3 %
19-105
08/03/22 12:15
08104122 20:58
MGG
Surr: 2-Fluorophenol (Surr)
02
SW8270E
50.6 %
12-95
08/03/22 12:15
08/04/22 20:58
MGG
Surr: Nitrobenzene-d5 (Surr)
02
SW8270E
64.9 %
21-100
08103122 12:15
08104122 20:58
MGG
Surr.- Phenol-d5 (Surr)
02
SW8270E
63.8 %
13-100
08/03/22 12:15
08104122 20:58
MGG
Surr: p-Terphenyl-d14 (Surr)
02
SW8270E
58.7 %
25-125
08/03/22 12:15
08/04/22 20:58
MGG
Organochlorine Pesticides and PCBs by GC/ECD
PCB as Aroclor 1016
02
SW8082A
<0.116 mg/kg dry
0.116
1 08/08/22 09:40
08/09/22 13:44
LBH2
PCB as Aroclor 1221
02
SW8082A
<0.116 mg/kg dry
0.116
1 08/08/22 09:40
08/09/22 13:44
LBH2
Page 17 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Analytical Results
Sample I.D. ET-S-1
Grab Date/Time:
Field Residual Cl:
Laboratory Order ID: 22HO122
07/27/2022 13:40
Laboratory Sample ID: 22HO122-02
Field pH:
Reporting Sample Prep Analysis
Parameter Samp ID Method Result Qual Limit D.F. Date/Time Date/Time Analyst
Organochlorine Pesticides and PCBs by GC/ECD
PCB as Aroclor 1232
02
SW8082A
<0.116 mg/kg dry
0.116
1 08/08/22 09:40
08/09/22 13:44
LBH2
PCB as Aroclor 1242
02
SW8082A
<0.116 mg/kg dry
0.116
1 08/08/22 09:40
08/09/22 13:44
LBH2
PCB as Aroclor 1248
02
SW8082A
<0.116 mg/kg dry
0.116
1 08/08/22 09:40
08/09/22 13:44
LBH2
PCB as Aroclor 1254
02
SW8082A
<0.116 mg/kg dry
0.116
1 08/08/22 09:40
08/09/22 13:44
LBH2
PCB as Aroclor 1260
02
SW8082A
<0.116 mg/kg dry
0.116
1 08/08/22 09:40
08/09/22 13:44
LBH2
- - - - - - - - - - - -
Surr: DCB
- - - -
02
- - - - - - -
SW8082A
- - - - - - - - - - - -
94.4 %
- - - - - -
30-105
- - - - - - - - -
08/08/22 09:40
- - - - - - -
08/09/22 13:44
- - -
LBH2
Surr: TCMX
02
SW8082A
73.6 %
30-105
08/08/22 09:40
08/09/22 13:44
LBH2
Wet Chemistry Analysis
Percent Solids
02
SM22
85.4 %
0.10
1 08/05/22 16:04
08/05/22 16:04
MAH
2540G-2011
Page 18 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-E-1
Grab Date/Time:
Field Residual Cl:
07/27/2022 14:05
Laboratory Sample ID: 22HO122-03
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual Limit
D.F.
Date/Time
Date/Time
Analyst
Volatile Organic Compounds by GCMS
1,1,1,2-Tetrachloroethane
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
1,1,1-Trichloroethane
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
1,1,2,2-Tetrachloroethane
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
1,1,2-Trichloroethane
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
1,1-Dichloroethane
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
1,1-Dichloroethylene
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
1,1-Dichloropropene
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
1,2,3-Trichlorobenzene
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
1,2,3-Trichloropropane
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
1,2,4-Trichlorobenzene
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
1,2,4-Trimethyl benzene
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
1,2-Dibromo-3-chloropropane
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
(DBCP)
1,2-Dibromoethane (EDB)
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
1,2-Dichlorobenzene
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
1,2-Dichloroethane
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
1,2-Dichloropropane
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
1,3,5-Trimethylbenzene
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
1,3-Dichlorobenzene
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
1,3-Dichloropropane
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
1,4-Dichlorobenzene
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
2,2-Dichloropropane
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
2-Butanone (MEK)
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
2-Chlorotoluene
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
2-Hexanone (MBK)
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
4-Chlorotoluene
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
Page 19 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-E-1
Grab Date/Time:
Field Residual Cl:
07/27/2022 14:05
Laboratory Sample ID: 22HO122-03
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual Limit
D.F.
Date/Time
Date/Time
Analyst
Volatile Organic Compounds by GCMS
4-Isopropyltoluene
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
4-Methyl-2-pentanone (MIBK)
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
Acetone
03
SW8260D
117 ug/kg dry
10.0
1
08/03/22 19:13
08/03/22 19:13
RJB
Benzene
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
Bromobenzene
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
Bromochloromethane
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
Bromodichloromethane
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
Bromoform
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
Bromomethane
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
Carbon disulfide
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
Carbon tetrachloride
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
Chlorobenzene
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
Chloroethane
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
Chloroform
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
Chloromethane
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
cis- 1,2-Dichloroethylene
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
cis- 1,3-Dichloropropene
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
Dibromochloromethane
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
Dibromomethane
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
Dichlorodifluoromethane
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
Di -isopropyl ether (DIPE)
03
SW8260D
<5.00 ug/kg dry
C 5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
Ethylbenzene
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
Hexachlorobutadiene
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
Iodomethane
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
Isopropyl benzene
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
m+p-Xylenes
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
Page 20 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-E-1
Grab Date/Time: 07/27/2022 14:05
Laboratory Sample ID: 22HO122-03
Field Residual Cl: Field pH:
Reporting Sample Prep Analysis
Parameter Samp ID Method Result Qual Limit D.F. Date/Time Date/Time Analyst
Volatile Organic Compounds by GCMS
Methylene chloride
03
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 19:13
08/03/22 19:13
RJB
Methyl-t-butyl ether (MTBE)
03
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 19:13
08/03/22 19:13
RJB
Naphthalene
03
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 19:13
08/03/22 19:13
RJB
n-Butylbenzene
03
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 19:13
08/03/22 19:13
RJB
n-Propylbenzene
03
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 19:13
08/03/22 19:13
RJB
o-Xylene
03
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 19:13
08/03/22 19:13
RJB
sec- Butylbenzene
03
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 19:13
08/03/22 19:13
RJB
Styrene
03
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 19:13
08/03/22 19:13
RJB
tert-Butyl benzene
03
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 19:13
08/03/22 19:13
RJB
Tetrachloroethylene (PCE)
03
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 19:13
08/03/22 19:13
RJB
Toluene
03
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 19:13
08/03/22 19:13
RJB
trans-1,2-Dichloroethylene
03
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 19:13
08/03/22 19:13
RJB
trans-1,3-Dichloropropene
03
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 19:13
08/03/22 19:13
RJB
Trichloroethylene
03
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 19:13
08/03/22 19:13
RJB
Trichlorofluoromethane
03
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 19:13
08/03/22 19:13
RJB
Vinyl acetate
03
SW8260D
<10.0 ug/kg dry
10.0
1 08/03/22 19:13
08/03/22 19:13
RJB
Vinyl chloride
03
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 19:13
08/03/22 19:13
RJB
Xylenes, Total
03
SW8260D
<15.0 ug/kg dry
15.0
1 08/03/22 19:13
08/03/22 19:13
RJB
- - - - - - - - - - - -
Surr: 1,2-Dichloroethane-d4
- - - -
03
- - - - - - -
SW8260D
- - - - - - - - - -
125 %
- - - - - - - -
S 80-120
- - - - - - - - -
08/03/22 19:13
- - - - - - -
08/03/22 19:13
- - -
RJB
(Surr)
Surr: 4-Bromofluorobenzene
03
SW8260D
95.8 %
85-120
08103122 19:13
08103122 19:13
RJB
(Surr)
Surr: Dibromofluoromethane
03
SW8260D
100 %
80-130
08/03/22 19:13
08/03/22 19:13
RJB
(Surr)
Surr.- Toluene-d8 (Surr)
03
SW8260D
102 %
85-115
08/03/22 19:13
08/03/22 19:13
RJB
Semivolatile Organic Compounds by GCMS
Page 21 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-E-1
Grab Date/Time:
Field Residual Cl:
07/27/2022 14:05
Laboratory Sample ID: 22HO122-03
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual Limit
D.F.
Date/Time
Date/Time
Analyst
Semivolatile Organic Compounds by GCMS
1,2,4,5-Tetrachlorobenzene
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
1,2,4-Trichlorobenzene
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
1,2-Dichlorobenzene
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
1,2-Diphenylhydrazine
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
1,3-Dichlorobenzene
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
1,4-Dichlorobenzene
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
1-Chloronaphthalene
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
1-Naphthylamine
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
2,3,4,6-Tetrachlorophenol
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
2,4,5-Trichlorophenol
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
2,4,6-Trichlorophenol
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
2,4-Dichlorophenol
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
2,4-Dimethylphenol
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
2,4-Dinitrophenol
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
2,4-Dinitrotoluene
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
2,6-Dichlorophenol
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
2,6-Dinitrotoluene
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
2-Chloronaphthalene
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
2-Chlorophenol
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
2-Methylnaphthalene
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
2-Naphthylamine
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
2-Nitroaniline
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
2-Nitrophenol
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
3,3'-Dichlorobenzidine
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
3-Methylcholanthrene
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
3-Nitroaniline
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Page 22 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-E-1
Grab Date/Time:
Field Residual Cl:
07/27/2022 14:05
Laboratory Sample ID: 22HO122-03
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual Limit
D.F.
Date/Time
Date/Time
Analyst
Semivolatile Organic Compounds by GCMS
4,6-Dinitro-2-methylphenol
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
4-Aminobiphenyl
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
4-Bromophenyl phenyl ether
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
4-Chloroaniline
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
4-Chlorophenyl phenyl ether
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
4-Nitroaniline
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
4-Nitrophenol
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
7,12-Dimethylbenz (a)
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
anthracene
Acenaphthene
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Acenaphthylene
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Acetophenone
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Aniline
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Anthracene
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Benzidine
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Benzo (a) anthracene
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Benzo (a) pyrene
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Benzo (b) fluoranthene
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Benzo (g,h,i) perylene
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Benzo (k) fluoranthene
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Benzoic acid
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Benzyl alcohol
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
bis (2-Chloroethoxy) methane
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
bis (2-Chloroethyl) ether
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
2,2'-Oxybis (1-chloropropane)
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
bis (2-Ethylhexyl) phthalate
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Page 23 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-E-1
Grab Date/Time:
Field Residual Cl:
07/27/2022 14:05
Laboratory Sample ID: 22HO122-03
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual Limit
D.F.
Date/Time
Date/Time
Analyst
Semivolatile Organic Compounds by GCMS
Butyl benzyl phthalate
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Chrysene
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Dibenz (a,h) anthracene
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Dibenz (a,j) acridine
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Dibenzofuran
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Diethyl phthalate
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Dimethyl phthalate
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Di-n-butyl phthalate
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Di-n-octyl phthalate
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Diphenylamine
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Ethyl methanesulfonate
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Fluoranthene
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Fluorene
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Hexachlorobenzene
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Hexachlorobutadiene
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Hexachlorocyclopentadiene
03
SW8270E
<91.6 ug/kg dry
C 91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Hexachloroethane
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Indeno (1,2,3-cd) pyrene
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Isophorone
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
m+p-Cresols
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Methyl methanesulfonate
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Naphthalene
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Nitrobenzene
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
n-Nitrosodimethylamine
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
n-Nitrosodi-n-butylamine
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
n-Nitrosodi-n-propylamine
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Page 24 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-E-1
Grab Date/Time: 07/27/2022 14:05
Laboratory Sample ID: 22HO122-03
Field Residual Cl: Field pH:
Reporting Sample Prep Analysis
Parameter Samp ID Method Result Qual Limit D.F. Date/Time Date/Time Analyst
Semivolatile Organic Compounds by GCMS
n-Nitrosodiphenylamine
03
SW8270E
<91.6 ug/kg dry
91.6
1 08/03/22 12:15
08/04/22 21:32
MGG
n-Nitrosopiperidine
03
SW8270E
<91.6 ug/kg dry
91.6
1 08/03/22 12:15
08/04/22 21:32
MGG
o+m+p-Cresols
03
SW8270E
<91.6 ug/kg dry
91.6
1 08/03/22 12:15
08/04/22 21:32
MGG
o-Cresol
03
SW8270E
<91.6 ug/kg dry
91.6
1 08/03/22 12:15
08/04/22 21:32
MGG
p-(Dimethylamino)
03
SW8270E
<91.6 ug/kg dry
91.6
1 08/03/22 12:15
08/04/22 21:32
MGG
azobenzene
p-Chloro-m-cresol
03
SW8270E
<91.6 ug/kg dry
91.6
1 08/03/22 12:15
08/04/22 21:32
MGG
Pentachloronitrobenzene
03
SW8270E
<91.6 ug/kg dry
91.6
1 08/03/22 12:15
08/04/22 21:32
MGG
(quintozene)
Pentachlorophenol
03
SW8270E
<91.6 ug/kg dry
91.6
1 08/03/22 12:15
08/04/22 21:32
MGG
Phenacetin
03
SW8270E
<91.6 ug/kg dry
91.6
1 08/03/22 12:15
08/04/22 21:32
MGG
Phenanthrene
03
SW8270E
<91.6 ug/kg dry
91.6
1 08/03/22 12:15
08/04/22 21:32
MGG
Phenol
03
SW8270E
<91.6 ug/kg dry
91.6
1 08/03/22 12:15
08/04/22 21:32
MGG
Pronamide
03
SW8270E
<91.6 ug/kg dry
91.6
1 08/03/22 12:15
08/04/22 21:32
MGG
Pyrene
03
SW8270E
<91.6 ug/kg dry
91.6
1 08/03/22 12:15
08/04/22 21:32
MGG
Pyridine
03
SW8270E
<91.6 ug/kg dry
91.6
1 08/03/22 12:15
08/04/22 21:32
MGG
- - - - - - - - - - - -
Surr.- 2,4,6-Tribromophenol
- - - -
03
- - - - - - -
SW8270E
- - - - - - - - - - -
66.3 %
- - - - - -
15-96
- - - - - - - - -
08/03/22 12:15
- - - - - - -
08/04/22 21:32
- - -
MGG
(Surr)
Surr.- 2-Fluorobiphenyl (Surr)
03
SW8270E
70.9 %
19-105
08/03/22 12:15
08104122 21:32
MGG
Surr: 2-Fluorophenol (Surr)
03
SW8270E
53.9 %
12-95
08/03/22 12:15
08/04/22 21:32
MGG
Surr: Nitrobenzene-d5 (Surr)
03
SW8270E
68.1 %
21-100
08103122 12:15
08104122 21:32
MGG
Surr.- Phenol-d5 (Surr)
03
SW8270E
68.2 %
13-100
08/03/22 12:15
08104122 21:32
MGG
Surr: p-Terphenyl-d14 (Surr)
03
SW8270E
63.5 %
25-125
08/03/22 12:15
08/04/22 21:32
MGG
Organochlorine Pesticides and PCBs by GC/ECD
PCB as Aroclor 1016
03
SW8082A
<0.112 mg/kg dry
0.112
1 08/08/22 09:40
08/09/22 14:03
LBH2
PCB as Aroclor 1221
03
SW8082A
<0.112 mg/kg dry
0.112
1 08/08/22 09:40
08/09/22 14:03
LBH2
Page 25 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Analytical Results
Sample I.D. ET-E-1
Grab Date/Time:
Field Residual Cl:
Laboratory Order ID: 22HO122
07/27/2022 14:05
Laboratory Sample ID: 22HO122-03
Field pH:
Reporting Sample Prep Analysis
Parameter Samp ID Method Result Qual Limit D.F. Date/Time Date/Time Analyst
Organochlorine Pesticides and PCBs by GC/ECD
PCB as Aroclor 1232
03
SW8082A
<0.112 mg/kg dry
0.112
1 08/08/22 09:40
08/09/22 14:03
LBH2
PCB as Aroclor 1242
03
SW8082A
<0.112 mg/kg dry
0.112
1 08/08/22 09:40
08/09/22 14:03
LBH2
PCB as Aroclor 1248
03
SW8082A
<0.112 mg/kg dry
0.112
1 08/08/22 09:40
08/09/22 14:03
LBH2
PCB as Aroclor 1254
03
SW8082A
<0.112 mg/kg dry
0.112
1 08/08/22 09:40
08/09/22 14:03
LBH2
PCB as Aroclor 1260
03
SW8082A
<0.112 mg/kg dry
0.112
1 08/08/22 09:40
08/09/22 14:03
LBH2
- - - - - - - - - - - -
Surr: DCB
- - - -
03
- - - - - - -
SW8082A
- - - - - - - - - - - -
94.6 %
- - - - - -
30-105
- - - - - - - - -
08/08/22 09:40
- - - - - - -
08/09/22 14:03
- - -
LBH2
Surr: TCMX
03
SW8082A
72.0 %
30-105
08/08/22 09:40
08/09/22 14:03
LBH2
Wet Chemistry Analysis
Percent Solids
03
SM22
86.9 %
0.10
1 08/05/22 16:04
08/05/22 16:04
MAH
2540G-2011
Page 26 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-W-1
Grab Date/Time:
Field Residual Cl:
07/27/2022 14:30
Laboratory Sample ID: 22HO122-04
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual Limit
D.F.
Date/Time
Date/Time
Analyst
Volatile Organic Compounds by GCMS
1,1,1,2-Tetrachloroethane
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
1,1,1-Trichloroethane
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
1,1,2,2-Tetrachloroethane
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
1,1,2-Trichloroethane
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
1,1-Dichloroethane
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
1,1-Dichloroethylene
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
1,1-Dichloropropene
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
1,2,3-Trichlorobenzene
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
1,2,3-Trichloropropane
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
1,2,4-Trichlorobenzene
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
1,2,4-Trimethyl benzene
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
1,2-Dibromo-3-chloropropane
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
(DBCP)
1,2-Dibromoethane (EDB)
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
1,2-Dichlorobenzene
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
1,2-Dichloroethane
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
1,2-Dichloropropane
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
1,3,5-Trimethylbenzene
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
1,3-Dichlorobenzene
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
1,3-Dichloropropane
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
1,4-Dichlorobenzene
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
2,2-Dichloropropane
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
2-Butanone (MEK)
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
2-Chlorotoluene
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
2-Hexanone (MBK)
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
4-Chlorotoluene
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
Page 27 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-W-1
Grab Date/Time:
Field Residual Cl:
07/27/2022 14:30
Laboratory Sample ID: 22HO122-04
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual Limit
D.F.
Date/Time
Date/Time
Analyst
Volatile Organic Compounds by GCMS
4-Isopropyltoluene
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
4-Methyl-2-pentanone (MIBK)
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
Acetone
04
SW8260D
337 ug/kg dry
16.0
1
08/03/22 19:38
08/03/22 19:38
RJB
Benzene
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
Bromobenzene
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
Bromochloromethane
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
Bromodichloromethane
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
Bromoform
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
Bromomethane
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
Carbon disulfide
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
Carbon tetrachloride
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
Chlorobenzene
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
Chloroethane
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
Chloroform
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
Chloromethane
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
cis- 1,2-Dichloroethylene
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
cis- 1,3-Dichloropropene
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
Dibromochloromethane
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
Dibromomethane
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
Dichlorodifluoromethane
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
Di -isopropyl ether (DIPE)
04
SW8260D
<7.98 ug/kg dry
C 7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
Ethylbenzene
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
Hexachlorobutadiene
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
Iodomethane
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
Isopropyl benzene
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
m+p-Xylenes
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
Page 28 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-W-1
Grab Date/Time: 07/27/2022 14:30
Laboratory Sample ID: 22HO122-04
Field Residual Cl: Field pH:
Reporting Sample Prep Analysis
Parameter Samp ID Method Result Qual Limit D.F. Date/Time Date/Time Analyst
Volatile Organic Compounds by GCMS
Methylene chloride
04
SW8260D
<7.98 ug/kg dry
7.98
1 08/03/22 19:38
08/03/22 19:38
RJB
Methyl-t-butyl ether (MTBE)
04
SW8260D
<7.98 ug/kg dry
7.98
1 08/03/22 19:38
08/03/22 19:38
RJB
Naphthalene
04
SW8260D
<7.98 ug/kg dry
7.98
1 08/03/22 19:38
08/03/22 19:38
RJB
n-Butylbenzene
04
SW8260D
<7.98 ug/kg dry
7.98
1 08/03/22 19:38
08/03/22 19:38
RJB
n-Propylbenzene
04
SW8260D
<7.98 ug/kg dry
7.98
1 08/03/22 19:38
08/03/22 19:38
RJB
o-Xylene
04
SW8260D
<7.98 ug/kg dry
7.98
1 08/03/22 19:38
08/03/22 19:38
RJB
sec- Butylbenzene
04
SW8260D
<7.98 ug/kg dry
7.98
1 08/03/22 19:38
08/03/22 19:38
RJB
Styrene
04
SW8260D
<7.98 ug/kg dry
7.98
1 08/03/22 19:38
08/03/22 19:38
RJB
tert-Butyl benzene
04
SW8260D
<7.98 ug/kg dry
7.98
1 08/03/22 19:38
08/03/22 19:38
RJB
Tetrachloroethylene (PCE)
04
SW8260D
<7.98 ug/kg dry
7.98
1 08/03/22 19:38
08/03/22 19:38
RJB
Toluene
04
SW8260D
<7.98 ug/kg dry
7.98
1 08/03/22 19:38
08/03/22 19:38
RJB
trans-1,2-Dichloroethylene
04
SW8260D
<7.98 ug/kg dry
7.98
1 08/03/22 19:38
08/03/22 19:38
RJB
trans-1,3-Dichloropropene
04
SW8260D
<7.98 ug/kg dry
7.98
1 08/03/22 19:38
08/03/22 19:38
RJB
Trichloroethylene
04
SW8260D
<7.98 ug/kg dry
7.98
1 08/03/22 19:38
08/03/22 19:38
RJB
Trichlorofluoromethane
04
SW8260D
<7.98 ug/kg dry
7.98
1 08/03/22 19:38
08/03/22 19:38
RJB
Vinyl acetate
04
SW8260D
<16.0 ug/kg dry
16.0
1 08/03/22 19:38
08/03/22 19:38
RJB
Vinyl chloride
04
SW8260D
<7.98 ug/kg dry
7.98
1 08/03/22 19:38
08/03/22 19:38
RJB
Xylenes, Total
04
SW8260D
<23.9 ug/kg dry
23.9
1 08/03/22 19:38
08/03/22 19:38
RJB
- - - - - - - - - - - -
Surr: 1,2-Dichloroethane-d4
- - - -
04
- - - - - - -
SW8260D
- - - - - - - - - -
134 %
- - - - - - - -
S 80-120
- - - - - - - - -
08/03/22 19:38
- - - - - - -
08/03/22 19:38
- - -
RJB
(Surr)
Surr: 4-Bromofluorobenzene
04
SW8260D
93.8 %
85-120
08103122 19:38
08103122 19:38
RJB
(Surr)
Surr: Dibromofluoromethane
04
SW8260D
105 %
80-130
08/03/22 19:38
08/03/22 19:38
RJB
(Surr)
Surr.- Toluene-d8 (Surr)
04
SW8260D
105 %
85-115
08/03/22 19:38
08/03/22 19:38
RJB
Semivolatile Organic Compounds by GCMS
Page 29 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-W-1
Grab Date/Time:
Field Residual Cl:
07/27/2022 14:30
Laboratory Sample ID: 22HO122-04
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual Limit
D.F.
Date/Time
Date/Time
Analyst
Semivolatile Organic Compounds by GCMS
1,2,4,5-Tetrachlorobenzene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
1,2,4-Trichlorobenzene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
1,2-Dichlorobenzene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
1,2-Diphenylhydrazine
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
1,3-Dichlorobenzene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
1,4-Dichlorobenzene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
1-Chloronaphthalene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
1-Naphthylamine
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
2,3,4,6-Tetrachlorophenol
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
2,4,5-Trichlorophenol
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
2,4,6-Trichlorophenol
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
2,4-Dichlorophenol
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
2,4-Dimethylphenol
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
2,4-Dinitrophenol
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
2,4-Dinitrotoluene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
2,6-Dichlorophenol
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
2,6-Dinitrotoluene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
2-Chloronaphthalene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
2-Chlorophenol
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
2-Methylnaphthalene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
2-Naphthylamine
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
2-Nitroaniline
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
2-Nitrophenol
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
3,3'-Dichlorobenzidine
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
3-Methylcholanthrene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
3-Nitroaniline
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Page 30 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-W-1
Grab Date/Time:
Field Residual Cl:
07/27/2022 14:30
Laboratory Sample ID: 22HO122-04
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual Limit
D.F.
Date/Time
Date/Time
Analyst
Semivolatile Organic Compounds by GCMS
4,6-Dinitro-2-methylphenol
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
4-Aminobiphenyl
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
4-Bromophenyl phenyl ether
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
4-Chloroaniline
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
4-Chlorophenyl phenyl ether
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
4-Nitroaniline
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
4-Nitrophenol
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
7,12-Dimethylbenz (a)
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
anthracene
Acenaphthene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Acenaphthylene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Acetophenone
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Aniline
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Anthracene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Benzidine
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Benzo (a) anthracene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Benzo (a) pyrene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Benzo (b) fluoranthene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Benzo (g,h,i) perylene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Benzo (k) fluoranthene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Benzoic acid
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Benzyl alcohol
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
bis (2-Chloroethoxy) methane
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
bis (2-Chloroethyl) ether
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
2,2'-Oxybis (1-chloropropane)
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
bis (2-Ethylhexyl) phthalate
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Page 31 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-W-1
Grab Date/Time:
Field Residual Cl:
07/27/2022 14:30
Laboratory Sample ID: 22HO122-04
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual Limit
D.F.
Date/Time
Date/Time
Analyst
Semivolatile Organic Compounds by GCMS
Butyl benzyl phthalate
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Chrysene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Dibenz (a,h) anthracene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Dibenz (a,j) acridine
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Dibenzofuran
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Diethyl phthalate
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Dimethyl phthalate
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Di-n-butyl phthalate
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Di-n-octyl phthalate
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Diphenylamine
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Ethyl methanesulfonate
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Fluoranthene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Fluorene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Hexachlorobenzene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Hexachlorobutadiene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Hexachlorocyclopentadiene
04
SW8270E
<345 ug/kg dry
C 345
4
08/03/22 12:15
08/04/22 22:06
MGG
Hexachloroethane
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Indeno (1,2,3-cd) pyrene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Isophorone
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
m+p-Cresols
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Methyl methanesulfonate
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Naphthalene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Nitrobenzene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
n-Nitrosodimethylamine
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
n-Nitrosodi-n-butylamine
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
n-Nitrosodi-n-propylamine
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Page 32 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Analytical Results
Sample I.D. ET-W-1
Grab Date/Time:
Field Residual Cl:
Laboratory Order ID: 22HO122
07/27/2022 14:30
Laboratory Sample ID: 22HO122-04
Field pH:
Parameter
Samp ID
Method
Result
Reporting
Qual Limit
D.F.
Sample Prep
Date/Time
Analysis
Date/Time
Analyst
Semivolatile Organic Compounds by GCMS
n-Nitrosodiphenylamine
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
n-Nitrosopiperidine
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
o+m+p-Cresols
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
o-Cresol
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
p-(Dimethylamino)
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
azobenzene
p-Chloro-m-cresol
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Pentachloronitrobenzene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
(quintozene)
Pentachlorophenol
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Phenacetin
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Phenanthrene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Phenol
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Pronamide
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Pyrene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Pyridine
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
- - - - - - - - - - - -
Surr.- 2,4,6-Tribromophenol
- - -
04
- - - - - - -
SW8270E
- - - - - - - - - - -
59.5 %
- - - - - -
15-96
- -
- - - - - - -
08/03/22 12:15
- - - - - - -
08/04/22 22:06
- - -
MGG
(Surr)
Surr.- 2-Fluorobiphenyl (Surr)
04
SW8270E
46.2 %
19-105
08/03/22 12:15
08104122 22:06
MGG
Surr: 2-Fluorophenol (Surr)
04
SW8270E
52.1 %
12-95
08/03/22 12:15
08/04/22 22:06
MGG
Surr: Nitrobenzene-d5 (Surr)
04
SW8270E
56.1 %
21-100
08103122 12:15
08104122 22:06
MGG
Surr.- Phenol-d5 (Surr)
04
SW8270E
50.2 %
13-100
08/03/22 12:15
08104122 22:06
MGG
Surr: p-Terphenyl-d14 (Surr)
04
SW8270E
59.8 %
25-125
08/03/22 12:15
08/04/22 22:06
MGG
Organochlorine Pesticides and PCBs by GC/ECD
PCB as Aroclor 1016
04
SW8082A
<0.108 mg/kg dry
0.108
1
08/08/22 09:40
08/09/22 14:23
LBH2
PCB as Aroclor 1221
04
SW8082A
<0.108 mg/kg dry
0.108
1
08/08/22 09:40
08/09/22 14:23
LBH2
Page 33 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Analytical Results
Sample I.D. ET-W-1
Grab Date/Time:
Field Residual Cl:
Laboratory Order ID: 22HO122
07/27/2022 14:30
Laboratory Sample ID: 22HO122-04
Field pH:
Reporting Sample Prep Analysis
Parameter Samp ID Method Result Qual Limit D.F. Date/Time Date/Time Analyst
Organochlorine Pesticides and PCBs by GC/ECD
PCB as Aroclor 1232
04
SW8082A
<0.108 mg/kg dry
0.108
1 08/08/22 09:40
08/09/22 14:23
LBH2
PCB as Aroclor 1242
04
SW8082A
<0.108 mg/kg dry
0.108
1 08/08/22 09:40
08/09/22 14:23
LBH2
PCB as Aroclor 1248
04
SW8082A
<0.108 mg/kg dry
0.108
1 08/08/22 09:40
08/09/22 14:23
LBH2
PCB as Aroclor 1254
04
SW8082A
<0.108 mg/kg dry
0.108
1 08/08/22 09:40
08/09/22 14:23
LBH2
PCB as Aroclor 1260
04
SW8082A
<0.108 mg/kg dry
0.108
1 08/08/22 09:40
08/09/22 14:23
LBH2
- - - - - - - - - - - -
Surr: DCB
- - - -
04
- - - - - - -
SW8082A
- - - - - - - - - - - -
91.7 %
- - - - - -
30-105
- - - - - - - - -
08/08/22 09:40
- - - - - - -
08/09/22 14:23
- - -
LBH2
Surr: TCMX
04
SW8082A
65.4 %
30-105
08/08/22 09:40
08/09/22 14:23
LBH2
Wet Chemistry Analysis
Percent Solids
04
SM22
91.9 %
0.10
1 08/05/22 16:04
08/05/22 16:04
MAH
2540G-2011
Page 34 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-B-1
Grab Date/Time:
Field Residual Cl:
07/27/2022 14:45
Laboratory Sample ID: 22HO122-05
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual Limit
D.F.
Date/Time
Date/Time
Analyst
Volatile Organic Compounds by GCMS
1,1,1,2-Tetrachloroethane
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
1,1,1-Trichloroethane
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
1,1,2,2-Tetrachloroethane
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
1,1,2-Trichloroethane
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
1,1-Dichloroethane
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
1,1-Dichloroethylene
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
1,1-Dichloropropene
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
1,2,3-Trichlorobenzene
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
1,2,3-Trichloropropane
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
1,2,4-Trichlorobenzene
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
1,2,4-Trimethyl benzene
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
1,2-Dibromo-3-chloropropane
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
(DBCP)
1,2-Dibromoethane (EDB)
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
1,2-Dichlorobenzene
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
1,2-Dichloroethane
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
1,2-Dichloropropane
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
1,3,5-Trimethylbenzene
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
1,3-Dichlorobenzene
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
1,3-Dichloropropane
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
1,4-Dichlorobenzene
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
2,2-Dichloropropane
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
2-Butanone (MEK)
05
SW8260D
7.12 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
2-Chlorotoluene
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
2-Hexanone (MBK)
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
4-Chlorotoluene
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
Page 35 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-13-1
Grab Date/Time:
Field Residual Cl:
07/27/2022 14:45
Laboratory Sample ID: 22HO122-05
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual Limit
D.F.
Date/Time
Date/Time
Analyst
Volatile Organic Compounds by GCMS
4-Isopropyltoluene
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
4-Methyl-2-pentanone (MIBK)
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
Acetone
05
SW8260D
181 ug/kg dry
10.0
1
08/03/22 20:05
08/03/22 20:05
RJB
Benzene
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
Bromobenzene
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
Bromochloromethane
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
Bromodichloromethane
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
Bromoform
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
Bromomethane
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
Carbon disulfide
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
Carbon tetrachloride
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
Chlorobenzene
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
Chloroethane
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
Chloroform
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
Chloromethane
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
cis- 1,2-Dichloroethylene
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
cis- 1,3-Dichloropropene
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
Dibromochloromethane
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
Dibromomethane
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
Dichlorodifluoromethane
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
Di -isopropyl ether (DIPE)
05
SW8260D
<5.00 ug/kg dry
C 5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
Ethylbenzene
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
Hexachlorobutadiene
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
Iodomethane
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
Isopropyl benzene
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
m+p-Xylenes
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
Page 36 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-B-1
Grab Date/Time: 07/27/2022 14:45
Laboratory Sample ID: 22HO122-05
Field Residual Cl: Field pH:
Reporting Sample Prep Analysis
Parameter Samp ID Method Result Qual Limit D.F. Date/Time Date/Time Analyst
Volatile Organic Compounds by GCMS
Methylene chloride
05
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 20:05
08/03/22 20:05
RJB
Methyl-t-butyl ether (MTBE)
05
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 20:05
08/03/22 20:05
RJB
Naphthalene
05
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 20:05
08/03/22 20:05
RJB
n-Butylbenzene
05
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 20:05
08/03/22 20:05
RJB
n-Propylbenzene
05
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 20:05
08/03/22 20:05
RJB
o-Xylene
05
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 20:05
08/03/22 20:05
RJB
sec- Butylbenzene
05
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 20:05
08/03/22 20:05
RJB
Styrene
05
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 20:05
08/03/22 20:05
RJB
tert-Butyl benzene
05
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 20:05
08/03/22 20:05
RJB
Tetrachloroethylene (PCE)
05
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 20:05
08/03/22 20:05
RJB
Toluene
05
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 20:05
08/03/22 20:05
RJB
trans-1,2-Dichloroethylene
05
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 20:05
08/03/22 20:05
RJB
trans-1,3-Dichloropropene
05
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 20:05
08/03/22 20:05
RJB
Trichloroethylene
05
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 20:05
08/03/22 20:05
RJB
Trichlorofluoromethane
05
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 20:05
08/03/22 20:05
RJB
Vinyl acetate
05
SW8260D
<10.0 ug/kg dry
10.0
1 08/03/22 20:05
08/03/22 20:05
RJB
Vinyl chloride
05
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 20:05
08/03/22 20:05
RJB
Xylenes, Total
05
SW8260D
<15.0 ug/kg dry
15.0
1 08/03/22 20:05
08/03/22 20:05
RJB
- - - - - - - - - - - -
Surr: 1,2-Dichloroethane-d4
- - - -
05
- - - - - - -
SW8260D
- - - - - - - - - - - -
117 %
- - - - - -
80-120
- - - - - - - - -
08/03/22 20:05
- - - - - - -
08/03/22 20:05
- - -
RJB
(Surr)
Surr: 4-Bromofluorobenzene
05
SW8260D
93.9 %
85-120
08103122 20:05
08103122 20:05
RJB
(Surr)
Surr: Dibromofluoromethane
05
SW8260D
102 %
80-130
08/03/22 20:05
08/03/22 20:05
RJB
(Surr)
Surr.- Toluene-d8 (Surr)
05
SW8260D
98.4 %
85-115
08/03/22 20:05
08/03/22 20:05
RJB
Semivolatile Organic Compounds by GCMS
Page 37 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-B-1
Grab Date/Time:
Field Residual Cl:
07/27/2022 14:45
Laboratory Sample ID: 22HO122-05
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual Limit
D.F.
Date/Time
Date/Time
Analyst
Semivolatile Organic Compounds by GCMS
1,2,4,5-Tetrachlorobenzene
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
1,2,4-Trichlorobenzene
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
1,2-Dichlorobenzene
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
1,2-Diphenylhydrazine
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
1,3-Dichlorobenzene
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
1,4-Dichlorobenzene
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
1-Chloronaphthalene
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
1-Naphthylamine
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
2,3,4,6-Tetrachlorophenol
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
2,4,5-Trichlorophenol
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
2,4,6-Trichlorophenol
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
2,4-Dichlorophenol
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
2,4-Dimethylphenol
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
2,4-Dinitrophenol
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
2,4-Dinitrotoluene
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
2,6-Dichlorophenol
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
2,6-Dinitrotoluene
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
2-Chloronaphthalene
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
2-Chlorophenol
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
2-Methylnaphthalene
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
2-Naphthylamine
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
2-Nitroaniline
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
2-Nitrophenol
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
3,3'-Dichlorobenzidine
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
3-Methylcholanthrene
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
3-Nitroaniline
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Page 38 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-B-1
Grab Date/Time:
Field Residual Cl:
07/27/2022 14:45
Laboratory Sample ID: 22HO122-05
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual Limit
D.F.
Date/Time
Date/Time
Analyst
Semivolatile Organic Compounds by GCMS
4,6-Dinitro-2-methylphenol
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
4-Aminobiphenyl
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
4-Bromophenyl phenyl ether
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
4-Chloroaniline
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
4-Chlorophenyl phenyl ether
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
4-Nitroaniline
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
4-Nitrophenol
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
7,12-Dimethylbenz (a)
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
anthracene
Acenaphthene
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Acenaphthylene
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Acetophenone
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Aniline
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Anthracene
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Benzidine
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Benzo (a) anthracene
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Benzo (a) pyrene
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Benzo (b) fluoranthene
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Benzo (g,h,i) perylene
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Benzo (k) fluoranthene
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Benzoic acid
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Benzyl alcohol
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
bis (2-Chloroethoxy) methane
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
bis (2-Chloroethyl) ether
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
2,2'-Oxybis (1-chloropropane)
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
bis (2-Ethylhexyl) phthalate
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Page 39 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-B-1
Grab Date/Time:
Field Residual Cl:
07/27/2022 14:45
Laboratory Sample ID: 22HO122-05
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual Limit
D.F.
Date/Time
Date/Time
Analyst
Semivolatile Organic Compounds by GCMS
Butyl benzyl phthalate
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Chrysene
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Dibenz (a,h) anthracene
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Dibenz (a,j) acridine
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Dibenzofuran
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Diethyl phthalate
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Dimethyl phthalate
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Di-n-butyl phthalate
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Di-n-octyl phthalate
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Diphenylamine
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Ethyl methanesulfonate
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Fluoranthene
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Fluorene
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Hexachlorobenzene
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Hexachlorobutadiene
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Hexachlorocyclopentadiene
05
SW8270E
<92.2 ug/kg dry
C 92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Hexachloroethane
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Indeno (1,2,3-cd) pyrene
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Isophorone
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
m+p-Cresols
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Methyl methanesulfonate
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Naphthalene
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Nitrobenzene
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
n-Nitrosodimethylamine
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
n-Nitrosodi-n-butylamine
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
n-Nitrosodi-n-propylamine
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Page 40 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-B-1
Grab Date/Time: 07/27/2022 14:45
Laboratory Sample ID: 22HO122-05
Field Residual Cl: Field pH:
Reporting Sample Prep Analysis
Parameter Samp ID Method Result Qual Limit D.F. Date/Time Date/Time Analyst
Semivolatile Organic Compounds by GCMS
n-Nitrosodiphenylamine
05
SW8270E
<92.2 ug/kg dry
92.2
1 08/03/22 12:15
08/04/22 22:40
MGG
n-Nitrosopiperidine
05
SW8270E
<92.2 ug/kg dry
92.2
1 08/03/22 12:15
08/04/22 22:40
MGG
o+m+p-Cresols
05
SW8270E
<92.2 ug/kg dry
92.2
1 08/03/22 12:15
08/04/22 22:40
MGG
o-Cresol
05
SW8270E
<92.2 ug/kg dry
92.2
1 08/03/22 12:15
08/04/22 22:40
MGG
p-(Dimethylamino)
05
SW8270E
<92.2 ug/kg dry
92.2
1 08/03/22 12:15
08/04/22 22:40
MGG
azobenzene
p-Chloro-m-cresol
05
SW8270E
<92.2 ug/kg dry
92.2
1 08/03/22 12:15
08/04/22 22:40
MGG
Pentachloronitrobenzene
05
SW8270E
<92.2 ug/kg dry
92.2
1 08/03/22 12:15
08/04/22 22:40
MGG
(quintozene)
Pentachlorophenol
05
SW8270E
<92.2 ug/kg dry
92.2
1 08/03/22 12:15
08/04/22 22:40
MGG
Phenacetin
05
SW8270E
<92.2 ug/kg dry
92.2
1 08/03/22 12:15
08/04/22 22:40
MGG
Phenanthrene
05
SW8270E
<92.2 ug/kg dry
92.2
1 08/03/22 12:15
08/04/22 22:40
MGG
Phenol
05
SW8270E
<92.2 ug/kg dry
92.2
1 08/03/22 12:15
08/04/22 22:40
MGG
Pronamide
05
SW8270E
<92.2 ug/kg dry
92.2
1 08/03/22 12:15
08/04/22 22:40
MGG
Pyrene
05
SW8270E
<92.2 ug/kg dry
92.2
1 08/03/22 12:15
08/04/22 22:40
MGG
Pyridine
05
SW8270E
<92.2 ug/kg dry
92.2
1 08/03/22 12:15
08/04/22 22:40
MGG
- - - - - - - - - - - -
Surr.- 2,4,6-Tribromophenol
- - - -
05
- - - - - - -
SW8270E
- - - - - - - - - - -
52.3 %
- - - - - -
15-96
- - - - - - - - -
08/03/22 12:15
- - - - - - -
08/04/22 22:40
- - -
MGG
(Surr)
Surr.- 2-Fluorobiphenyl (Surr)
05
SW8270E
50.5 %
19-105
08/03/22 12:15
08104122 22:40
MGG
Surr: 2-Fluorophenol (Surr)
05
SW8270E
45.6 %
12-95
08/03/22 12:15
08/04/22 22:40
MGG
Surr: Nitrobenzene-d5 (Surr)
05
SW8270E
53.4 %
21-100
08103122 12:15
08104122 22:40
MGG
Surr.- Phenol-d5 (Surr)
05
SW8270E
57.8 %
13-100
08/03/22 12:15
08104122 22:40
MGG
Surr: p-Terphenyl-d14 (Surr)
05
SW8270E
55.3 %
25-125
08/03/22 12:15
08/04/22 22:40
MGG
Organochlorine Pesticides and PCBs by GC/ECD
PCB as Aroclor 1016
05
SW8082A
<0.116 mg/kg dry
0.116
1 08/08/22 09:40
08/09/22 14:43
LBH2
PCB as Aroclor 1221
05
SW8082A
<0.116 mg/kg dry
0.116
1 08/08/22 09:40
08/09/22 14:43
LBH2
Page 41 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Analytical Results
Sample I.D. ET-B-1
Grab Date/Time:
Field Residual Cl:
Laboratory Order ID: 22HO122
07/27/2022 14:45
Laboratory Sample ID: 22HO122-05
Field pH:
Reporting Sample Prep Analysis
Parameter Samp ID Method Result Qual Limit D.F. Date/Time Date/Time Analyst
Organochlorine Pesticides and PCBs by GC/ECD
PCB as Aroclor 1232
05
SW8082A
<0.116 mg/kg dry
0.116
1 08/08/22 09:40
08/09/22 14:43
LBH2
PCB as Aroclor 1242
05
SW8082A
<0.116 mg/kg dry
0.116
1 08/08/22 09:40
08/09/22 14:43
LBH2
PCB as Aroclor 1248
05
SW8082A
<0.116 mg/kg dry
0.116
1 08/08/22 09:40
08/09/22 14:43
LBH2
PCB as Aroclor 1254
05
SW8082A
<0.116 mg/kg dry
0.116
1 08/08/22 09:40
08/09/22 14:43
LBH2
PCB as Aroclor 1260
05
SW8082A
<0.116 mg/kg dry
0.116
1 08/08/22 09:40
08/09/22 14:43
LBH2
- - - - - - - - - - - -
Surr: DCB
- - - -
05
- - - - - - -
SW8082A
- - - - - - - - - - - -
92.2 %
- - - - - -
30-105
- - - - - - - - -
08/08/22 09:40
- - - - - - -
08/09/22 14:43
- - -
LBH2
Surr: TCMX
05
SW8082A
58.8 %
30-105
08/08/22 09:40
08/09/22 14:43
LBH2
Wet Chemistry Analysis
Percent Solids
05
SM22
86.3 %
0.10
1 08/04/22 10:02
08/04/22 10:02
MAH
2540G-2011
Page 42 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-DUP
Grab Date/Time:
Field Residual Cl:
07/27/2022 00:00
Laboratory Sample ID: 22HO122-16
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual Limit
D.F.
Date/Time
Date/Time
Analyst
Volatile Organic Compounds by GCMS
1,1,1,2-Tetrachloroethane
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
1,1,1-Trichloroethane
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
1,1,2,2-Tetrachloroethane
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
1,1,2-Trichloroethane
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
1,1-Dichloroethane
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
1,1-Dichloroethylene
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
1,1-Dichloropropene
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
1,2,3-Trichlorobenzene
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
1,2,3-Trichloropropane
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
1,2,4-Trichlorobenzene
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
1,2,4-Trimethyl benzene
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
1,2-Dibromo-3-chloropropane
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
(DBCP)
1,2-Dibromoethane (EDB)
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
1,2-Dichlorobenzene
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
1,2-Dichloroethane
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
1,2-Dichloropropane
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
1,3,5-Trimethylbenzene
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
1,3-Dichlorobenzene
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
1,3-Dichloropropane
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
1,4-Dichlorobenzene
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
2,2-Dichloropropane
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
2-Butanone (MEK)
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
2-Chlorotoluene
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
2-Hexanone (MBK)
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
4-Chlorotoluene
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
Page 43 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-DUP
Grab Date/Time:
Field Residual Cl:
07/27/2022 00:00
Laboratory Sample ID: 22HO122-16
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual Limit
D.F.
Date/Time
Date/Time
Analyst
Volatile Organic Compounds by GCMS
4-Isopropyltoluene
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
4-Methyl-2-pentanone (MIBK)
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
Acetone
16
SW8260D
37.0 ug/kg dry
10.1
1
08/03/22 20:30
08/03/22 20:30
RJB
Benzene
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
Bromobenzene
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
Bromochloromethane
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
Bromodichloromethane
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
Bromoform
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
Bromomethane
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
Carbon disulfide
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
Carbon tetrachloride
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
Chlorobenzene
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
Chloroethane
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
Chloroform
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
Chloromethane
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
cis- 1,2-Dichloroethylene
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
cis- 1,3-Dichloropropene
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
Dibromochloromethane
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
Dibromomethane
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
Dichlorodifluoromethane
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
Di -isopropyl ether (DIPE)
16
SW8260D
<5.03 ug/kg dry
C 5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
Ethylbenzene
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
Hexachlorobutadiene
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
Iodomethane
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
Isopropyl benzene
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
m+p-Xylenes
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
Page 44 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-DUP
Grab Date/Time: 07/27/2022 00:00
Laboratory Sample ID: 22HO122-16
Field Residual Cl: Field pH:
Reporting Sample Prep Analysis
Parameter Samp ID Method Result Qual Limit D.F. Date/Time Date/Time Analyst
Volatile Organic Compounds by GCMS
Methylene chloride
16
SW8260D
<5.03 ug/kg dry
5.03
1 08/03/22 20:30
08/03/22 20:30
RJB
Methyl-t-butyl ether (MTBE)
16
SW8260D
<5.03 ug/kg dry
5.03
1 08/03/22 20:30
08/03/22 20:30
RJB
Naphthalene
16
SW8260D
<5.03 ug/kg dry
5.03
1 08/03/22 20:30
08/03/22 20:30
RJB
n-Butylbenzene
16
SW8260D
<5.03 ug/kg dry
5.03
1 08/03/22 20:30
08/03/22 20:30
RJB
n-Propylbenzene
16
SW8260D
<5.03 ug/kg dry
5.03
1 08/03/22 20:30
08/03/22 20:30
RJB
o-Xylene
16
SW8260D
<5.03 ug/kg dry
5.03
1 08/03/22 20:30
08/03/22 20:30
RJB
sec- Butylbenzene
16
SW8260D
<5.03 ug/kg dry
5.03
1 08/03/22 20:30
08/03/22 20:30
RJB
Styrene
16
SW8260D
<5.03 ug/kg dry
5.03
1 08/03/22 20:30
08/03/22 20:30
RJB
tert-Butyl benzene
16
SW8260D
<5.03 ug/kg dry
5.03
1 08/03/22 20:30
08/03/22 20:30
RJB
Tetrachloroethylene (PCE)
16
SW8260D
<5.03 ug/kg dry
5.03
1 08/03/22 20:30
08/03/22 20:30
RJB
Toluene
16
SW8260D
<5.03 ug/kg dry
5.03
1 08/03/22 20:30
08/03/22 20:30
RJB
trans-1,2-Dichloroethylene
16
SW8260D
<5.03 ug/kg dry
5.03
1 08/03/22 20:30
08/03/22 20:30
RJB
trans-1,3-Dichloropropene
16
SW8260D
<5.03 ug/kg dry
5.03
1 08/03/22 20:30
08/03/22 20:30
RJB
Trichloroethylene
16
SW8260D
<5.03 ug/kg dry
5.03
1 08/03/22 20:30
08/03/22 20:30
RJB
Trichlorofluoromethane
16
SW8260D
<5.03 ug/kg dry
5.03
1 08/03/22 20:30
08/03/22 20:30
RJB
Vinyl acetate
16
SW8260D
<10.1 ug/kg dry
10.1
1 08/03/22 20:30
08/03/22 20:30
RJB
Vinyl chloride
16
SW8260D
<5.03 ug/kg dry
5.03
1 08/03/22 20:30
08/03/22 20:30
RJB
Xylenes, Total
16
SW8260D
<15.1 ug/kg dry
15.1
1 08/03/22 20:30
08/03/22 20:30
RJB
- - - - - - - - - - - -
Surr: 1,2-Dichloroethane-d4
- - - -
16
- - - - - - -
SW8260D
- - - - - - - - - - - -
116 %
- - - - - -
80-120
- - - - - - - - -
08/03/22 20:30
- - - - - - -
08/03/22 20:30
- - -
RJB
(Surr)
Surr: 4-Bromofluorobenzene
16
SW8260D
94.6 %
85-120
08103122 20:30
08103122 20:30
RJB
(Surr)
Surr: Dibromofluoromethane
16
SW8260D
106 %
80-130
08/03/22 20:30
08/03/22 20:30
RJB
(Surr)
Surr.- Toluene-d8 (Surr)
16
SW8260D
101 %
85-115
08/03/22 20:30
08/03/22 20:30
RJB
Semivolatile Organic Compounds by GCMS
Page 45 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-DUP
Grab Date/Time:
Field Residual Cl:
07/27/2022 00:00
Laboratory Sample ID: 22HO122-16
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual Limit
D.F.
Date/Time
Date/Time
Analyst
Semivolatile Organic Compounds by GCMS
1,2,4,5-Tetrachlorobenzene
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
1,2,4-Trichlorobenzene
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
1,2-Dichlorobenzene
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
1,2-Diphenylhydrazine
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
1,3-Dichlorobenzene
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
1,4-Dichlorobenzene
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
1-Chloronaphthalene
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
1-Naphthylamine
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
2,3,4,6-Tetrachlorophenol
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
2,4,5-Trichlorophenol
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
2,4,6-Trichlorophenol
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
2,4-Dichlorophenol
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
2,4-Dimethylphenol
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
2,4-Dinitrophenol
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
2,4-Dinitrotoluene
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
2,6-Dichlorophenol
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
2,6-Dinitrotoluene
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
2-Chloronaphthalene
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
2-Chlorophenol
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
2-Methylnaphthalene
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
2-Naphthylamine
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
2-Nitroaniline
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
2-Nitrophenol
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
3,3'-Dichlorobenzidine
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
3-Methylcholanthrene
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
3-Nitroaniline
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Page 46 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-DUP
Grab Date/Time:
Field Residual Cl:
07/27/2022 00:00
Laboratory Sample ID: 22HO122-16
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual Limit
D.F.
Date/Time
Date/Time
Analyst
Semivolatile Organic Compounds by GCMS
4,6-Dinitro-2-methylphenol
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
4-Aminobiphenyl
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
4-Bromophenyl phenyl ether
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
4-Chloroaniline
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
4-Chlorophenyl phenyl ether
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
4-Nitroaniline
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
4-Nitrophenol
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
7,12-Dimethylbenz (a)
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
anthracene
Acenaphthene
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Acenaphthylene
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Acetophenone
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Aniline
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Anthracene
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Benzidine
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Benzo (a) anthracene
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Benzo (a) pyrene
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Benzo (b) fluoranthene
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Benzo (g,h,i) perylene
16
SW8270E
<87.7 ug/kg dry
C 87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Benzo (k) fluoranthene
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Benzoic acid
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Benzyl alcohol
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
bis (2-Chloroethoxy) methane
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
bis (2-Chloroethyl) ether
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
2,2'-Oxybis (1-chloropropane)
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
bis (2-Ethylhexyl) phthalate
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Page 47 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-DUP
Grab Date/Time:
Field Residual Cl:
07/27/2022 00:00
Laboratory Sample ID: 22HO122-16
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual
Limit
D.F.
Date/Time
Date/Time
Analyst
Semivolatile Organic Compounds by GCMS
Butyl benzyl phthalate
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Chrysene
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Dibenz (a,h) anthracene
16
SW8270E
<87.7 ug/kg dry
C
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Dibenz (a,j) acridine
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Dibenzofuran
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Diethyl phthalate
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Dimethyl phthalate
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Di-n-butyl phthalate
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Di-n-octyl phthalate
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Diphenylamine
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Ethyl methanesulfonate
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Fluoranthene
16
SW8270E
<87.7 ug/kg dry
C
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Fluorene
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Hexachlorobenzene
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Hexachlorobutadiene
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Hexachlorocyclopentadiene
16
SW8270E
<87.7 ug/kg dry
C
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Hexachloroethane
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Indeno (1,2,3-cd) pyrene
16
SW8270E
<87.7 ug/kg dry
C
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Isophorone
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
m+p-Cresols
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Methyl methanesulfonate
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Naphthalene
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Nitrobenzene
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
n-Nitrosodimethylamine
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
n-Nitrosodi-n-butylamine
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
n-Nitrosodi-n-propylamine
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Page 48 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-DUP
Grab Date/Time: 07/27/2022 00:00
Laboratory Sample ID: 22HO122-16
Field Residual Cl: Field pH:
Reporting Sample Prep Analysis
Parameter Samp ID Method Result Qual Limit D.F. Date/Time Date/Time Analyst
Semivolatile Organic Compounds by GCMS
n-Nitrosodiphenylamine
16
SW8270E
<87.7 ug/kg dry
87.7
1 08/04/22 12:00
08/05/22 17:31
MGG
n-Nitrosopiperidine
16
SW8270E
<87.7 ug/kg dry
87.7
1 08/04/22 12:00
08/05/22 17:31
MGG
o+m+p-Cresols
16
SW8270E
<87.7 ug/kg dry
87.7
1 08/04/22 12:00
08/05/22 17:31
MGG
o-Cresol
16
SW8270E
<87.7 ug/kg dry
87.7
1 08/04/22 12:00
08/05/22 17:31
MGG
p-(Dimethylamino)
16
SW8270E
<87.7 ug/kg dry
87.7
1 08/04/22 12:00
08/05/22 17:31
MGG
azobenzene
p-Chloro-m-cresol
16
SW8270E
<87.7 ug/kg dry
87.7
1 08/04/22 12:00
08/05/22 17:31
MGG
Pentachloronitrobenzene
16
SW8270E
<87.7 ug/kg dry
87.7
1 08/04/22 12:00
08/05/22 17:31
MGG
(quintozene)
Pentachlorophenol
16
SW8270E
<87.7 ug/kg dry
87.7
1 08/04/22 12:00
08/05/22 17:31
MGG
Phenacetin
16
SW8270E
<87.7 ug/kg dry
87.7
1 08/04/22 12:00
08/05/22 17:31
MGG
Phenanthrene
16
SW8270E
<87.7 ug/kg dry
87.7
1 08/04/22 12:00
08/05/22 17:31
MGG
Phenol
16
SW8270E
<87.7 ug/kg dry
87.7
1 08/04/22 12:00
08/05/22 17:31
MGG
Pronamide
16
SW8270E
<87.7 ug/kg dry
87.7
1 08/04/22 12:00
08/05/22 17:31
MGG
Pyrene
16
SW8270E
<87.7 ug/kg dry
87.7
1 08/04/22 12:00
08/05/22 17:31
MGG
Pyridine
16
SW8270E
<87.7 ug/kg dry
87.7
1 08/04/22 12:00
08/05/22 17:31
MGG
- - - - - - - - - - - -
Surr.- 2,4,6-Tribromophenol
- - - -
16
- - - - - - -
SW8270E
- - - - - - - - - - -
69.5 %
- - - - - -
15-96
- - - - - - - - -
08/04/22 12:00
- - - - - - -
08/05/22 17:31
- - -
MGG
(Surr)
Surr.- 2-Fluorobiphenyl (Surr)
16
SW8270E
79.6 %
19-105
08104122 12:00
08105122 17:31
MGG
Surr: 2-Fluorophenol (Surr)
16
SW8270E
61.7 %
12-95
08/04/22 12:00
08/05/22 17:31
MGG
Surr: Nitrobenzene-d5 (Surr)
16
SW8270E
71.7 %
21-100
08104122 12:00
08105122 17:31
MGG
Surr.- Phenol-d5 (Surr)
16
SW8270E
69.8 %
13-100
08104122 12:00
08105122 17:31
MGG
Surr: p-Terphenyl-d14 (Surr)
16
SW8270E
72.6 %
25-125
08/04/22 12:00
08/05/22 17:31
MGG
Organochlorine Pesticides and PCBs by GC/ECD
PCB as Aroclor 1016
16
SW8082A
<0.108 mg/kg dry
0.108
1 08/08/22 09:40
08/09/22 15:02
LBH2
PCB as Aroclor 1221
16
SW8082A
<0.108 mg/kg dry
0.108
1 08/08/22 09:40
08/09/22 15:02
LBH2
Page 49 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Analytical Results
Sample I.D. ET-DUP
Grab Date/Time:
Field Residual Cl:
Laboratory Order ID: 22HO122
07/27/2022 00:00
Laboratory Sample ID: 22HO122-16
Field pH:
Reporting Sample Prep Analysis
Parameter Samp ID Method Result Qual Limit D.F. Date/Time Date/Time Analyst
Organochlorine Pesticides and PCBs by GC/ECD
PCB as Aroclor 1232
16
SW8082A
<0.108 mg/kg dry
0.108
1 08/08/22 09:40
08/09/22 15:02
LBH2
PCB as Aroclor 1242
16
SW8082A
<0.108 mg/kg dry
0.108
1 08/08/22 09:40
08/09/22 15:02
LBH2
PCB as Aroclor 1248
16
SW8082A
<0.108 mg/kg dry
0.108
1 08/08/22 09:40
08/09/22 15:02
LBH2
PCB as Aroclor 1254
16
SW8082A
<0.108 mg/kg dry
0.108
1 08/08/22 09:40
08/09/22 15:02
LBH2
PCB as Aroclor 1260
16
SW8082A
<0.108 mg/kg dry
0.108
1 08/08/22 09:40
08/09/22 15:02
LBH2
- - - - - - - - - - - -
Surr: DCB
- - - -
16
- - - - - - -
SW8082A
- - - - - - - - - - - -
91.3 %
- - - - - -
30-105
- - - - - - - - -
08/08/22 09:40
- - - - - - -
08/09/22 15:02
- - -
LBH2
Surr: TCMX
16
SW8082A
75.3 %
30-105
08/08/22 09:40
08/09/22 15:02
LBH2
Wet Chemistry Analysis
Percent Solids
16
SM22
91.1 %
0.10
1 08/05/22 16:04
08/05/22 16:04
MAH
2540G-2011
Page 50 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Analytical Summary
Administrative Preparation Method:
22HO122-16 Subcontract
Preparation Factors
Sample ID Initial / Final Method Batch ID Sequence ID Calibration ID
Wet Chemistry Analysis
Preparation Method:
No Prep Wet Chem
22HO122-01
10.0 g / 10.0 mL
SM22 2540G-2011
BFHO164
SFHO157
22HO122-05
10.0 g / 10.0 mL
SM22 2540G-2011
BFHO164
SFHO157
Wet Chemistry Analysis
Preparation Method:
No Prep Wet Chem
22HO122-02
10.0 g / 10.0 mL
SM22 254OG-2011
BFH0245
SFH0224
22HO122-03
10.0 g / 10.0 mL
SM22 2540G-2011
BFH0245
SFH0224
22HO122-04
10.0 g / 10.0 mL
SM22 254OG-2011
BFH0245
SFH0224
22HO122-16
10.0 g / 10.0 mL
SM22 254OG-2011
BFH0245
SFH0224
Preparation Factors
Sample ID
Initial / Final
Method
Batch ID
Sequence ID
Calibration ID
Organochlorine Pesticides and PCBs by GC/ECD
Preparation Method:
SW3550B
22HO122-01
30.4 g / 5.00 mL
SW8082A
BFH0282
SFH0279
AG20111
22HO122-02
30.3 g / 5.00 mL
SW8082A
BFH0282
SFH0279
AG20111
22HO122-03
30.7 g / 5.00 mL
SW8082A
BFH0282
SFH0279
AG20111
22HO122-04
30.3 g / 5.00 mL
SW8082A
BFH0282
SFH0279
AG20111
22HO122-05
30.0 g / 5.00 mL
SW8082A
BFH0282
SFH0279
AG20111
22HO122-16
30.4 g / 5.00 mL
SW8082A
BFH0282
SFH0279
AG20111
Preparation Factors
Sample ID
Initial / Final
Method
Batch ID
Sequence ID
Calibration ID
Semivolatile Organic Compounds by GCMS
22HO122-01
32.4 g / 1.00 mL
22HO122-02
30.4 g / 1.00 mL
22HO122-03
31.4 g / 1.00 mL
22HO122-04
31.5 g / 1.00 mL
22HO122-05
31.4 g / 1.00 mL
Semivolatile Organic Compounds by GCMS
22HO122-16
31.3 g / 1.00 mL
Preparation Method:
SW3550C/EPA600-MS
SW8270E
BFHO127
SFH0205
SW8270E
BFHO127
SFH0205
SW8270E
BFHO127
SFH0205
SW8270E
BFHO127
SFH0205
SW8270E
BFHO127
SFH0205
Preparation Method:
SW3550C/EPA600-MS
SW8270E
BFHO196
SFH0257
AG20056
AG20056
AG20056
AG20056
AG20056
AG20056
Page 51 of 92

Client Name:
Submitted To:
Client Site I.D.
Sample ID
yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Sam Watts
Welcome Ventures
Preparation Factors
Initial / Final Method Batch ID Sequence ID Calibration ID
Volatile Organic Compounds by GCMS
Preparation Method:
SW5035-MS
22HO122-01
6.09 g / 5.00 mL
SW8260D
BFHO110
SFHO117
AG20115
22HO122-02
5.06 g / 5.00 mL
SW8260D
BFHO110
SFHO117
AG20115
22HO122-03
7.11 g / 5.00 mL
SW8260D
BFHO110
SFHO117
AG20115
22HO122-04
3.41 g / 5.00 mL
SW8260D
BFHO110
SFHO117
AG20115
22HO122-05
6.77 g / 5.00 mL
SW8260D
BFHO110
SFHO117
AG20115
22HO122-16
5.46 g / 5.00 mL
SW8260D
BFHO110
SFHO117
AG20115
Page 52 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name:
S&ME - Raleigh
Date Issued:
August 11, 2022 14:28
3201 Spring Forest Road
Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To:
Sam Watts
Client Site I.D.:
Welcome Ventures
QC Analytical Summary
Preparation Factors
Sample ID
Initial / Final
Method
Batch ID
Sequence ID
Calibration ID
Wet Chemistry Analysis
Preparation Method:
No Prep Wet Chem
BFHO164-BLK1
10.0 g / 10.0 mL
SM22 2540G-2011
BFHO164
SFHO157
BFHO164-DUP1
10.0 g / 10.0 mL
SM22 2540G-2011
BFHO164
SFHO157
BFHO164-DUP2
10.0 g / 10.0 mL
SM22 2540G-2011
BFHO164
SFHO157
BFH0245-BLK1
10.0 g / 10.0 mL
SM22 2540G-2011
BFH0245
SFH0224
BFH0245-DUP1
10.0 g / 10.0 mL
SM22 254OG-2011
BFH0245
SFH0224
Preparation Factors
Sample ID
Initial / Final
Method
Batch ID
Sequence ID
Calibration ID
Organochlorine Pesticides
and PCBs by GC/ECD
Preparation Method:
SW3550B
BFH0282-BLK1
30.2 g / 5.00 mL
SW8082A
BFH0282
SFH0279
AG20111
BFH0282-BS1
31.4 g / 5.00 mL
SW8082A
BFH0282
SFH0279
AG20111
BFH0282-MS1
30.3 g / 5.00 mL
SW8082A
BFH0282
SFH0279
AG20111
BFH0282-MSD1
30.1 g / 5.00 mL
SW8082A
BFH0282
SFH0279
AG20111
Preparation Factors
Sample ID
Initial / Final
Method
Batch ID
Sequence ID
Calibration ID
Semivolatile Organic Compounds by GCMS
Preparation Method:
SW3550C/EPA600-MS
BFHO127-BLK1
30.2 g / 1.00 mL
SW8270E
BFHO127
SFH0205
AG20056
BFHO127-BS1
31.2 g / 1.00 mL
SW8270E
BFHO127
SFH0205
AG20056
BFHO127-MS1
30.8 g / 1.00 mL
SW8270E
BFHO127
SFH0205
AG20056
BFHO127-MSD1
30.6 g / 1.00 mL
SW8270E
BFHO127
SFH0205
AG20056
BFHO196-BLK1
31.8 g / 1.00 mL
SW8270E
BFHO196
SFH0257
AG20056
BFHO196-BS1
30.8 g / 1.00 mL
SW8270E
BFHO196
SFH0257
AG20056
BFHO196-MS1
31.3 g / 1.00 mL
SW8270E
BFHO196
SFH0257
AG20056
BFHO196-MSD1
30.3 g / 1.00 mL
SW8270E
BFHO196
SFH0257
AG20056
Preparation Factors
Sample ID
Initial / Final
Method
Batch ID
Sequence ID
Calibration ID
Volatile Organic Compounds by GCMS Preparation Method: SW5035-MS
BFH0110-BLK1 5.00 g / 5.00 mL SW8260D BFHO110 SFHO117 AG20115
Page 53 of 92

Client Name:
Submitted To:
Client Site I.D.
Sample ID
yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Sam Watts
Welcome Ventures
Preparation Factors
Initial / Final Method Batch ID Sequence ID Calibration ID
Volatile Organic Compounds by GCMS
BFHO110-BS1 5.00 g / 5.00 mL
BFHO110-DUP1 5.89 g / 5.00 mL
Preparation Method: SW5035-MS
SW8260D BFHO110 SFHO117
SW8260D BFHO110 SFH0269
AG20115
AG20115
Page 54 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Volatile Organic Compounds by GCMS - Quality Control
Enthalpy Analytical
Reporting Spike Source %REC RPD
Analyte Result Limit Units Level Result %REC Limits RPD Limit Qual
Batch BFH0110 - SW5035-MS
Blank (BFH0110-BLK1)
Prepared & Analyzed: 08/03/2022
1,1,1,2-Tetrachloroethane
<5.00 ug/kg wet
5.00
ug/kg wet
1,1,1-Trichloroethane
<5.00 ug/kg wet
5.00
ug/kg wet
1,1,2,2-Tetrachloroethane
<5.00 ug/kg wet
5.00
ug/kg wet
1,1,2-Trichloroethane
<5.00 ug/kg wet
5.00
ug/kg wet
1,1-Dichloroethane
<5.00 ug/kg wet
5.00
ug/kg wet
1,1-Dichloroethylene
<5.00 ug/kg wet
5.00
ug/kg wet
1,1-Dichloropropene
<5.00 ug/kg wet
5.00
ug/kg wet
1,2,3-Trichlorobenzene
<5.00 ug/kg wet
5.00
ug/kg wet
1,2,3-Trichloropropane
<5.00 ug/kg wet
5.00
ug/kg wet
1,2,4-Trichlorobenzene
<5.00 ug/kg wet
5.00
ug/kg wet
1,2,4-Trimethyl benzene
<5.00 ug/kg wet
5.00
ug/kg wet
1,2-Dibromo-3-chloropropane (DBCP)
<5.00 ug/kg wet
5.00
ug/kg wet
1,2-Dibromoethane (EDB)
<5.00 ug/kg wet
5.00
ug/kg wet
1,2-Dichlorobenzene
<5.00 ug/kg wet
5.00
ug/kg wet
1,2-Dichloroethane
<5.00 ug/kg wet
5.00
ug/kg wet
1,2-Dichloropropane
<5.00 ug/kg wet
5.00
ug/kg wet
1,3,5-Trimethyl benzene
<5.00 ug/kg wet
5.00
ug/kg wet
1,3-Dichlorobenzene
<5.00 ug/kg wet
5.00
ug/kg wet
1,3-Dichloropropane
<5.00 ug/kg wet
5.00
ug/kg wet
1,4-Dichlorobenzene
<5.00 ug/kg wet
5.00
ug/kg wet
2,2-Dichloropropane
<5.00 ug/kg wet
5.00
ug/kg wet
2-Butanone (MEK)
<5.00 ug/kg wet
5.00
ug/kg wet
2-Chlorotoluene
<5.00 ug/kg wet
5.00
ug/kg wet
2-Hexanone (MBK)
<5.00 ug/kg wet
5.00
ug/kg wet
4-Chlorotoluene
<5.00 ug/kg wet
5.00
ug/kg wet
4-Isopropyltoluene
<5.00 ug/kg wet
5.00
ug/kg wet
4-Methyl-2-pentanone (MIBK)
<5.00 ug/kg wet
5.00
ug/kg wet
Acetone
<10.0 ug/kg wet
10.0
ug/kg wet
Benzene
<5.00 ug/kg wet
5.00
ug/kg wet
Bromobenzene
<5.00 ug/kg wet
5.00
ug/kg wet
Bromochloromethane
<5.00 ug/kg wet
5.00
ug/kg wet
Page 55 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Volatile Organic Compounds by GCMS - Quality Control
Enthalpy Analytical
Reporting Spike Source %REC RPD
Analyte Result Limit Units Level Result %REC Limits RPD Limit Qual
Batch BFH0110 - SW5035-MS
Blank (BFH0110-BLK1)
Prepared & Analyzed: 08/03/2022
Bromodichloromethane
<5.00 ug/kg wet
5.00
ug/kg wet
Bromoform
<5.00 ug/kg wet
5.00
ug/kg wet
Bromomethane
<5.00 ug/kg wet
5.00
ug/kg wet
Carbon disulfide
<5.00 ug/kg wet
5.00
ug/kg wet
Carbon tetrachloride
<5.00 ug/kg wet
5.00
ug/kg wet
Chlorobenzene
<5.00 ug/kg wet
5.00
ug/kg wet
Chloroethane
<5.00 ug/kg wet
5.00
ug/kg wet
Chloroform
<5.00 ug/kg wet
5.00
ug/kg wet
Chloromethane
<5.00 ug/kg wet
5.00
ug/kg wet
cis-1,2-Dichloroethylene
<5.00 ug/kg wet
5.00
ug/kg wet
cis-1,3-Dichloropropene
<5.00 ug/kg wet
5.00
ug/kg wet
Dibromochloromethane
<5.00 ug/kg wet
5.00
ug/kg wet
Dibromomethane
<5.00 ug/kg wet
5.00
ug/kg wet
Dichlorodifluoromethane
<5.00 ug/kg wet
5.00
ug/kg wet
Di -isopropyl ether (DIPE)
<5.00 ug/kg wet
5.00
ug/kg wet
Ethylbenzene
<5.00 ug/kg wet
5.00
ug/kg wet
Hexachlorobutadiene
<5.00 ug/kg wet
5.00
ug/kg wet
lodomethane
<5.00 ug/kg wet
5.00
ug/kg wet
Isopropylbenzene
<5.00 ug/kg wet
5.00
ug/kg wet
m+p-Xylenes
<5.00 ug/kg wet
5.00
ug/kg wet
Methylene chloride
<5.00 ug/kg wet
5.00
ug/kg wet
Methyl-t-butyl ether (MTBE)
<5.00 ug/kg wet
5.00
ug/kg wet
Naphthalene
<5.00 ug/kg wet
5.00
ug/kg wet
n-Butylbenzene
<5.00 ug/kg wet
5.00
ug/kg wet
n-Propylbenzene
<5.00 ug/kg wet
5.00
ug/kg wet
o-Xylene
<5.00 ug/kg wet
5.00
ug/kg wet
sec-Butylbenzene
<5.00 ug/kg wet
5.00
ug/kg wet
Styrene
<5.00 ug/kg wet
5.00
ug/kg wet
tert-Butylbenzene
<5.00 ug/kg wet
5.00
ug/kg wet
Tetrachloroethylene (PCE)
<5.00 ug/kg wet
5.00
ug/kg wet
Toluene
<5.00 ug/kg wet
5.00
ug/kg wet
Page 56 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Volatile Organic Compounds by GCMS - Quality Control
Enthalpy Analytical
Reporting Spike Source %REC RPD
Analyte Result Limit Units Level Result %REC Limits RPD Limit Qual
Batch BFH0110 - SW5035-MS
Blank (BFH0110-BLK1)
Prepared & Analyzed: 08/03/2022
trans-1,2-Dichloroethylene
<5.00 ug/kg wet
5.00
ug/kg wet
trans-1,3-Dichloropropene
<5.00 ug/kg wet
5.00
ug/kg wet
Trichloroethylene
<5.00 ug/kg wet
5.00
ug/kg wet
Trichlorofluoromethane
<5.00 ug/kg wet
5.00
ug/kg wet
Vinyl acetate
<10.0 ug/kg wet
10.0
ug/kg wet
Vinyl chloride
<5.00 ug/kg wet
5.00
ug/kg wet
Xylenes, Total
<15.0 ug/kg wet
15.0
ug/kg wet
- - - - - - - - - - - - - -
Surr 1,2-Dichloroethane-d4 (Surr)
- - - - - - - - - -
49.9
- - -
- - - -
ug/L
- - - - - - - - - - - - - - - - - - - - - - - - - - - -
50.0 99.8 80-120
Surr 4-Bromofluorobenzene (Surr)
45.5
ug/L
50.0 91.0 85-120
Surr Dibromofluoromethane (Surr)
50.7
ug/L
50.0 101 80-130
Surr. Toluene-d8 (Surr)
52.6
ug/L
50.0 105 85-115
LCS (BFH0110-BS1)
Prepared &Analyzed: 08/03/2022
1,1,1,2-Tetrachloroethane
41.8 ug/L
5
ug/L
50.0
ug/L
83.5
85-132 L
1,1,1-Trichloroethane
46.4 ug/L
5
ug/L
50.0
ug/L
92.9
70-135
1,1,2,2-Tetrachloroethane
49.8 ug/L
5
ug/L
50.0
ug/L
99.7
55-130
1,1,2-Trichloroethane
48.3 ug/L
5
ug/L
50.0
ug/L
96.5
60-125
1,1-Dichloroethane
46.8 ug/L
5
ug/L
50.0
ug/L
93.6
70-136
1,1-Dichloroethylene
39.5 ug/L
5
ug/L
50.0
ug/L
79.1
65-135
1,1-Dichloropropene
44.0 ug/L
5
ug/L
50.0
ug/L
87.9
70-135
1,2,3-Trichlorobenzene
49.6 ug/L
5
ug/L
50.0
ug/L
99.2
60-135
1,2,3-Trichloropropane
50.9 ug/L
5
ug/L
50.0
ug/L
102
65-130
1,2,4-Trichlorobenzene
54.6 ug/L
5
ug/L
50.0
ug/L
109
65-130
1,2,4-Trimethyl benzene
54.8 ug/L
5
ug/L
50.0
ug/L
110
65-135
1,2-Dibromo-3-chloropropane (DBCP)
53.9 ug/L
5
ug/L
50.0
ug/L
108
40-135
1,2-Dibromoethane (EDB)
52.7 ug/L
5
ug/L
50.0
ug/L
105
70-125
1,2-Dichlorobenzene
51.8 ug/L
5
ug/L
50.0
ug/L
104
75-120
1,2-Dichloroethane
45.8 ug/L
5
ug/L
50.0
ug/L
91.7
70-135
1,2-Dichloropropane
45.4 ug/L
5
ug/L
50.0
ug/L
90.8
70-120
1,3,5-Trimethyl benzene
49.8 ug/L
5
ug/L
50.0
ug/L
99.7
65-135
1,3-Dichlorobenzene
53.0 ug/L
5
ug/L
50.0
ug/L
106
70-125
1,3-Dichloropropane
47.1 ug/L
5
ug/L
50.0
ug/L
94.2
75-125
Page 57 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Volatile Organic Compounds by GCMS - Quality Control
Enthalpy Analytical
Reporting Spike Source %REC RPD
Analyte Result Limit Units Level Result %REC Limits RPD Limit Qual
Batch BFH0110 - SW5035-MS
LCS (BFH0110-BS1)
Prepared &Analyzed: 08/03/2022
1,4-Dichlorobenzene
55.0 ug/L
5
ug/L
50.0
ug/L
110
70-125
2,2-Dichloropropane
45.4 ug/L
5
ug/L
50.0
ug/L
90.8
65-135
2-Butanone (MEK)
41.4 ug/L
5
ug/L
50.0
ug/L
82.7
30-160
2-Chlorotoluene
53.9 ug/L
5
ug/L
50.0
ug/L
108
70-130
2-Hexanone (MBK)
47.8 ug/L
5
ug/L
50.0
ug/L
95.5
45-145
4-Chlorotoluene
51.4 ug/L
5
ug/L
50.0
ug/L
103
75-125
4-Isopropyltoluene
55.1 ug/L
5
ug/L
50.0
ug/L
110
75-135
4-Methyl-2-pentanone (MIBK)
43.0 ug/L
5
ug/L
50.0
ug/L
86.0
45-145
Acetone
59.8 ug/L
10
ug/L
50.0
ug/L
120
20-160
Benzene
46.6 ug/L
5
ug/L
50.0
ug/L
93.2
75-125
Bromobenzene
53.2 ug/L
5
ug/L
50.0
ug/L
106
65-120
Bromochloromethane
49.1 ug/L
5
ug/L
50.0
ug/L
98.3
70-125
Bromodichloromethane
44.6 ug/L
5
ug/L
50.0
ug/L
89.1
70-130
Bromoform
50.2 ug/L
5
ug/L
50.0
ug/L
100
55-135
Bromomethane
34.8 ug/L
5
ug/L
50.0
ug/L
69.6
30-160
Carbon disulfide
50.9 ug/L
5
ug/L
50.0
ug/L
102
45-160
Carbon tetrachloride
42.8 ug/L
5
ug/L
50.0
ug/L
85.6
65-135
Chlorobenzene
49.6 ug/L
5
ug/L
50.0
ug/L
99.1
75-125
Chloroethane
38.8 ug/L
5
ug/L
50.0
ug/L
77.5
40-155
Chloroform
49.0 ug/L
5
ug/L
50.0
ug/L
98.0
70-125
Chloromethane
36.3 ug/L
5
ug/L
50.0
ug/L
72.6
50-130
cis-1,2-Dichloroethylene
46.4 ug/L
5
ug/L
50.0
ug/L
92.8
65-125
cis-1,3-Dichloropropene
38.7 ug/L
5
ug/L
50.0
ug/L
77.5
70-125
Dibromochloromethane
48.0 ug/L
5
ug/L
50.0
ug/L
96.0
65-130
Dibromomethane
45.8 ug/L
5
ug/L
50.0
ug/L
91.7
75-130
Dichlorodifluoromethane
20.8 ug/L
5
ug/L
50.0
ug/L
41.5
35-135
Ethylbenzene
51.7 ug/L
5
ug/L
50.0
ug/L
103
75-125
Hexachlorobutadiene
44.3 ug/L
5
ug/L
50.0
ug/L
88.6
55-140
Isopropylbenzene
48.2 ug/L
5
ug/L
50.0
ug/L
96.5
75-130
m+p-Xylenes
100 ug/L
5
ug/L
100
ug/L
100
80-125
Methylene chloride
48.6 ug/L
5
ug/L
50.0
ug/L
97.3
55-140
Page 58 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Volatile Organic Compounds by GCMS - Quality Control
Enthalpy Analytical
Reporting Spike Source %REC RPD
Analyte Result Limit Units Level Result %REC Limits RPD Limit Qual
Batch BFH0110 - SW5035-MS
LCS (BFH0110-BS1)
Prepared &Analyzed: 08/03/2022
Methyl-t-butyl ether (MTBE)
37.9 ug/L
5
ug/L
50.0
ug/L
75.8
65-125
Naphthalene
49.6 ug/L
5
ug/L
50.0
ug/L
99.3
40-125
n-Butylbenzene
53.9 ug/L
5
ug/L
50.0
ug/L
108
65-140
n-Propylbenzene
52.0 ug/L
5
ug/L
50.0
ug/L
104
65-135
o-Xylene
52.3 ug/L
5
ug/L
50.0
ug/L
105
75-125
sec-Butylbenzene
55.0 ug/L
5
ug/L
50.0
ug/L
110
65-130
Styrene
51.6 ug/L
5
ug/L
50.0
ug/L
103
75-125
tert-Butylbenzene
55.0 ug/L
5
ug/L
50.0
ug/L
110
65-130
Tetrachloroethylene (PCE)
76.0 ug/L
5
ug/L
50.0
ug/L
152
48.1-219
Toluene
47.7 ug/L
5
ug/L
50.0
ug/L
95.4
70-125
trans-1,2-Dichloroethylene
44.5 ug/L
5
ug/L
50.0
ug/L
89.0
65-135
trans-1,3-Dichloropropene
44.7 ug/L
5
ug/L
50.0
ug/L
89.3
65-125
Trichloroethylene
48.9 ug/L
5
ug/L
50.0
ug/L
97.8
75-125
Trichlorofluoromethane
42.4 ug/L
5
ug/L
50.0
ug/L
84.8
25-185
Vinyl chloride
37.3 ug/L
5
ug/L
50.0
ug/L
74.6
60-125
- - - - - - - - - - - - - - - -
Surr. 1,2-Dichloroethane-d4 (Surr)
- - - - - - - -
58.9
- - - -
- - -
ug/L
- - -
50.0
- - - -
ug/L
- - - -
118
- - - - - - - - - - - - - - - - -
80-120
Surr. 4-Bromofluorobenzene (Surr)
49.0
ug/L
50.0
ug/L
98.0
85-120
Surr. Dibromofluoromethane (Surr)
51.6
ug/L
50.0
ug/L
103
80-130
Surr. Toluene-d8 (Surr)
48.3
ug/L
50.0
ug/L
96.6
85-115
Duplicate (BFH0110-DUP1)
Source: 22HO122-01
Prepared &Analyzed: 08/08/2022
1,1,1,2-Tetrachloroethane
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
1,1,1-Trichloroethane
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
1,1,2,2-Tetrachloroethane
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
1,1,2-Trichloroethane
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
1,1-Dichloroethane
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
1,1-Dichloroethylene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
1,1-Dichloropropene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
1,2,3-Trichlorobenzene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
1,2,3-Trichloropropane
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
1,2,4-Trichlorobenzene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
1,2,4-Trimethyl benzene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Page 59 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Volatile Organic Compounds by GCMS - Quality Control
Enthalpy Analytical
Reporting Spike Source %REC RPD
Analyte Result Limit Units Level Result %REC Limits RPD Limit Qual
Batch BFH0110 - SW5035-MS
Duplicate (BFH0110-DUP1)
Source: 22HO122-01
Prepared &Analyzed: 08/08/2022
1,2-Dibromo-3-chloropropane (DBCP)
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
1,2-Dibromoethane (EDB)
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
1,2-Dichlorobenzene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
1,2-Dichloroethane
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
1,2-Dichloropropane
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
1,3,5-Trimethyl benzene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
1,3-Dichlorobenzene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
1,3-Dichloropropane
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
1,4-Dichlorobenzene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
2,2-Dichloropropane
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30 C
2-Butanone (MEK)
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
2-Chlorotoluene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
2-Hexanone (MBK)
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
4-Chlorotoluene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
4-Isopropyltoluene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
4-Methyl-2-pentanone (MIBK)
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Acetone
119 ug/kg dry
11.3
ug/kg dry
132 ug/kg dry
10.3
30
Benzene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Bromobenzene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Bromochloromethane
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Bromodichloromethane
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Bromoform
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Bromomethane
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Carbon disulfide
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Carbon tetrachloride
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Chlorobenzene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Chloroethane
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Chloroform
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Chloromethane
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
cis-1,2-Dichloroethylene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
cis-1,3-Dichloropropene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Page 60 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road Richmond, Virginia 23230 Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Volatile Organic Compounds by GCMS - Quality Control
Enthalpy Analytical
Reporting Spike Source %REC RPD
Analyte Result Limit Units Level Result %REC Limits RPD Limit Qual
Batch BFHO110 - SW5035-MS
Duplicate (BFH0110-DUP1)
Source: 22HO122-01
Prepared &Analyzed: 08/08/2022
Dibromochloromethane
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Dibromomethane
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Dichlorodifluoromethane
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Di -isopropyl ether (DIPE)
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Ethylbenzene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Hexachlorobutadiene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
lodomethane
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Isopropylbenzene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
m+p-Xylenes
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Methylene chloride
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Methyl-t-butyl ether (MTBE)
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Naphthalene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
n-Butylbenzene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
n-Propylbenzene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
o-Xylene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
sec-Butylbenzene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Styrene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
tert-Butyl benzene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Tetrachloroethylene (PCE)
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Toluene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
trans- 1,2-Dichloroethylene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
trans- 1,3-Dichloropropene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Trichloroethylene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Trichlorofluoromethane
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Vinyl acetate
<11.3 ug/kg dry
11.3
ug/kg dry
<11.3 ug/kg
NA
30
Vinyl chloride
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Xylenes, Total
<16.9 ug/kg dry
16.9
ug/kg dry
<16.9 ug/kg
NA
30
Tetrahydrofuran
<11.3 ug/kg dry
11.3
ug/kg dry
<11.3 ug/kg
NA
30
Diethyl ether
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
- - - - - - - - - - - - - -
Surr 1,2-Dichloroethane-d4 (Surr)
- - - - - - - - - -
65.9
- - -
- - - -
ug/L
- - - - - - - - - - - - - - - -
50.0 ug/L 132 80-120
- - -
- - - - - - - - -
S
Surr 4-Bromofluorobenzene (Surr)
47.1
ug/L
50.0 ug/L 94.2 85-120
Page 61 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Volatile Organic Compounds by GCMS - Quality Control
Enthalpy Analytical
Reporting Spike Source %REC RPD
malyte Result Limit Units Level Result %REC Limits RPD Limit Qual
Batch BFH0110 - SW5035-MS
Duplicate (BFH0110-DUP1) Source: 22HO122-01 Prepared &Analyzed: 08/08/2022
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Surr: Dibromofluoromethane (Surr) 53.5 ug/L 50.0 ug/L 107 80-130
Surr.- Toluene-d8 (Surr) 49.2 ug/L 50.0 ug/L 98.5 85-115
Page 62 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Semivolatile Organic Compounds by GCMS - Quality Control
Enthalpy Analytical
Reporting Spike Source %REC RPD
Analyte Result Limit Units Level Result %REC Limits RPD Limit Qual
Batch BFHO127 - SW3550C/EPA600-MS
Blank (BFH0127-BLK1)
Prepared: 08/03/2022 Analyzed: 08/04/2022
1,2,4,5-Tetrachlorobenzene
<83.3 ug/kg wet
83.3
ug/kg wet
1,2,4-Trichlorobenzene
<83.3 ug/kg wet
83.3
ug/kg wet
1,2-Dichlorobenzene
<83.3 ug/kg wet
83.3
ug/kg wet
1,2-Diphenylhydrazine
<83.3 ug/kg wet
83.3
ug/kg wet
1,3-Dichlorobenzene
<83.3 ug/kg wet
83.3
ug/kg wet
1,4-Dichlorobenzene
<83.3 ug/kg wet
83.3
ug/kg wet
1-Chloronaphthalene
<83.3 ug/kg wet
83.3
ug/kg wet
1-Naphthylamine
<83.3 ug/kg wet
83.3
ug/kg wet
2,3,4,6-Tetrachlorophenol
<83.3 ug/kg wet
83.3
ug/kg wet
2,4,5-Trichlorophenol
<83.3 ug/kg wet
83.3
ug/kg wet
2,4,6-Trichlorophenol
<83.3 ug/kg wet
83.3
ug/kg wet
2,4-Dichlorophenol
<83.3 ug/kg wet
83.3
ug/kg wet
2,4-Dimethylphenol
<83.3 ug/kg wet
83.3
ug/kg wet
2,4-Dinitrophenol
<83.3 ug/kg wet
83.3
ug/kg wet
2,4-Dinitrotoluene
<83.3 ug/kg wet
83.3
ug/kg wet
2,6-Dichlorophenol
<83.3 ug/kg wet
83.3
ug/kg wet
2,6-Dinitrotoluene
<83.3 ug/kg wet
83.3
ug/kg wet
2-Chloronaphthalene
<83.3 ug/kg wet
83.3
ug/kg wet
2-Chlorophenol
<83.3 ug/kg wet
83.3
ug/kg wet
2-Methyl naphthalene
<83.3 ug/kg wet
83.3
ug/kg wet
2-Naphthylamine
<83.3 ug/kg wet
83.3
ug/kg wet
2-Nitroaniline
<83.3 ug/kg wet
83.3
ug/kg wet
2-Nitrophenol
<83.3 ug/kg wet
83.3
ug/kg wet
3,3'-Dichlorobenzidine
<83.3 ug/kg wet
83.3
ug/kg wet
3-Methylcholanthrene
<83.3 ug/kg wet
83.3
ug/kg wet
3-Nitroaniline
<83.3 ug/kg wet
83.3
ug/kg wet
4,6-Dinitro-2-methylphenol
<83.3 ug/kg wet
83.3
ug/kg wet
4-Aminobiphenyl
<83.3 ug/kg wet
83.3
ug/kg wet
4-Bromophenyl phenyl ether
<83.3 ug/kg wet
83.3
ug/kg wet
4-Chloroaniline
<83.3 ug/kg wet
83.3
ug/kg wet
4-Chlorophenyl phenyl ether
<83.3 ug/kg wet
83.3
ug/kg wet
Page 63 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Semivolatile Organic Compounds by GCMS - Quality Control
Enthalpy Analytical
Reporting Spike Source %REC RPD
Analyte Result Limit Units Level Result %REC Limits RPD Limit Qual
Batch BFHO127 - SW3550C/EPA600-MS
Blank (BFH0127-BLK1)
Prepared: 08/03/2022 Analyzed: 08/04/2022
4-Nitroaniline
<83.3 ug/kg wet
83.3
ug/kg wet
4-Nitrophenol
<83.3 ug/kg wet
83.3
ug/kg wet
7,12-Dimethylbenz (a) anthracene
<83.3 ug/kg wet
83.3
ug/kg wet
Acenaphthene
<83.3 ug/kg wet
83.3
ug/kg wet
Acenaphthylene
<83.3 ug/kg wet
83.3
ug/kg wet
Acetophenone
<83.3 ug/kg wet
83.3
ug/kg wet
Aniline
<83.3 ug/kg wet
83.3
ug/kg wet
Anthracene
<83.3 ug/kg wet
83.3
ug/kg wet
Benzidine
<83.3 ug/kg wet
83.3
ug/kg wet
Benzo (a) anthracene
<83.3 ug/kg wet
83.3
ug/kg wet
Benzo (a) pyrene
<83.3 ug/kg wet
83.3
ug/kg wet
Benzo (b) fluoranthene
<83.3 ug/kg wet
83.3
ug/kg wet
Benzo (g,h,i) perylene
<83.3 ug/kg wet
83.3
ug/kg wet
Benzo (k) fluoranthene
<83.3 ug/kg wet
83.3
ug/kg wet
Benzoic acid
<83.3 ug/kg wet
83.3
ug/kg wet
Benzyl alcohol
<83.3 ug/kg wet
83.3
ug/kg wet
bis (2-Chloroethoxy) methane
<83.3 ug/kg wet
83.3
ug/kg wet
bis (2-Chloroethyl) ether
<83.3 ug/kg wet
83.3
ug/kg wet
2,2'-Oxybis (1-chloropropane)
<83.3 ug/kg wet
83.3
ug/kg wet
bis (2-Ethylhexyl) phthalate
<83.3 ug/kg wet
83.3
ug/kg wet
Butyl benzyl phthalate
<83.3 ug/kg wet
83.3
ug/kg wet
Chrysene
<83.3 ug/kg wet
83.3
ug/kg wet
Dibenz (a,h) anthracene
<83.3 ug/kg wet
83.3
ug/kg wet
Dibenz (aJ) acridine
<83.3 ug/kg wet
83.3
ug/kg wet
Dibenzofuran
<83.3 ug/kg wet
83.3
ug/kg wet
Diethyl phthalate
<83.3 ug/kg wet
83.3
ug/kg wet
Dimethyl phthalate
<83.3 ug/kg wet
83.3
ug/kg wet
Di-n-butyl phthalate
<83.3 ug/kg wet
83.3
ug/kg wet
Di-n-octyl phthalate
<83.3 ug/kg wet
83.3
ug/kg wet
Diphenylamine
<83.3 ug/kg wet
83.3
ug/kg wet
Ethyl methanesulfonate
<83.3 ug/kg wet
83.3
ug/kg wet
Page 64 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Semivolatile Organic Compounds by GCMS - Quality Control
Enthalpy Analytical
Reporting Spike Source %REC RPD
Analyte Result Limit Units Level Result %REC Limits RPD Limit Qual
Batch BFHO127 - SW3550C/EPA600-MS
Blank (BFH0127-BLK1)
Prepared: 08/03/2022 Analyzed: 08/04/2022
Fluoranthene
<83.3 ug/kg wet
83.3
ug/kg wet
Fluorene
<83.3 ug/kg wet
83.3
ug/kg wet
Hexachlorobenzene
<83.3 ug/kg wet
83.3
ug/kg wet
Hexachlorobutadiene
<83.3 ug/kg wet
83.3
ug/kg wet
Hexachlorocyclopentadiene
<83.3 ug/kg wet
83.3
ug/kg wet
Hexachloroethane
<83.3 ug/kg wet
83.3
ug/kg wet
Indeno (1,2,3-cd) pyrene
<83.3 ug/kg wet
83.3
ug/kg wet
Isophorone
<83.3 ug/kg wet
83.3
ug/kg wet
m+p-Cresols
<83.3 ug/kg wet
83.3
ug/kg wet
Methyl methanesulfonate
<83.3 ug/kg wet
83.3
ug/kg wet
Naphthalene
<83.3 ug/kg wet
83.3
ug/kg wet
Nitrobenzene
<83.3 ug/kg wet
83.3
ug/kg wet
n-Nitrosodimethylamine
<83.3 ug/kg wet
83.3
ug/kg wet
n-Nitrosodi-n-butylamine
<83.3 ug/kg wet
83.3
ug/kg wet
n-Nitrosodi-n-propylamine
<83.3 ug/kg wet
83.3
ug/kg wet
n-Nitrosodiphenylamine
<83.3 ug/kg wet
83.3
ug/kg wet
n-Nitrosopiperidine
<83.3 ug/kg wet
83.3
ug/kg wet
o+m+p-Cresols
<83.3 ug/kg wet
83.3
ug/kg wet
o-Cresol
<83.3 ug/kg wet
83.3
ug/kg wet
p-(Dimethylamino) azobenzene
<83.3 ug/kg wet
83.3
ug/kg wet
p-Chloro-m-cresol
<83.3 ug/kg wet
83.3
ug/kg wet
Pentachloronitrobenzene (quintozene)
<83.3 ug/kg wet
83.3
ug/kg wet
Pentachlorophenol
<83.3 ug/kg wet
83.3
ug/kg wet
Phenacetin
<83.3 ug/kg wet
83.3
ug/kg wet
Phenanthrene
<83.3 ug/kg wet
83.3
ug/kg wet
Phenol
<83.3 ug/kg wet
83.3
ug/kg wet
Pronamide
<83.3 ug/kg wet
83.3
ug/kg wet
Pyrene
<83.3 ug/kg wet
83.3
ug/kg wet
Pyridine
<83.3 ug/kg wet
83.3
ug/kg wet
- - - - - - - - - - - - - - -
Surr. 2,4,6-Tribromophenol (Surr)
- - - - - - - - -
2770
- - -
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
ug/kg wet 3310 83.7 15-96
Surr. 2-Fluorobiphenyl (Surr)
1680
ug/kg wet 1660 102 19-105
Page 65 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Semivolatile Organic Compounds by GCMS - Quality Control
Enthalpy Analytical
Reporting Spike Source %REC RPD
Analyte Result Limit Units Level Result %REC Limits RPD Limit Qual
Batch BFHO127 - SW3550C/EPA600-MS
Blank (BFH0127-BLK1)
Prepared: 08/03/2022 Analyzed: 08/04/2022
- - - - - - - - - - - - - - -
Surr.- 2-Fluorophenol (Surr)
- - - - - - - - - -
2230
- - - - - -
ug/kg wet
- - - - - -
3310
- - - - -
67.3
- - - - - - - - - - - - - - - - -
12-95
Surr.- Nitrobenzene-d5 (Surr)
1410
ug/kg wet
1660
85.4
21-100
Surr. Phenol-d5 (Surr)
2810
ug/kg wet
3310
84.8
13-100
Surr p-Terphenyl-d14 (Surr)
1480
ug/kg wet
1660
89.4
25-125
LCS (BFH0127-BS1)
Prepared: 08/03/2022Analyzed: 08/04/2022
1,2,4-Trichlorobenzene
2050 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
128
70-130
1,2-Dichlorobenzene
1900 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
119
70-130
1,3-Dichlorobenzene
1780 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
ill
70-130
1,4-Dichlorobenzene
1940 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
121
70-130
2,4,6-Trichlorophenol
1650 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
103
20-115
2,4-Dichlorophenol
2040 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
127
20-111
L
2,4-Dimethylphenol
1960 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
122
20-110
L
2,4-Dinitrophenol
2460 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
153
10-169
2,4-Dinitrotoluene
1920 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
120
21-125
2,6-Dinitrotoluene
1760 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
110
15-140
2-Chloronaphthalene
1800 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
112
22-105
L
2-Chlorophenol
1700 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
106
15-107
2-Nitrophenol
1790 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
112
20-115
3,3'-Dichlorobenzidine
1310 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
81.6
10-110
4,6-Dinitro-2-methylphenol
2340 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
146
40-130
L
4-Bromophenyl phenyl ether
1800 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
112
20-114
4-Chlorophenyl phenyl ether
1680 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
105
15-110
4-Nitrophenol
2670 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
166
0-125
L
Acenaphthene
1930 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
120
24-110
L
Acenaphthylene
1900 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
119
25-106
L
Acetophenone
1450 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
90.7
0-200
Anthracene
2120 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
132
25-117
L
Benzo (a) anthracene
1750 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
109
25-127
Benzo (a) pyrene
2170 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
135
18-127
L
Benzo (b) fluoranthene
2430 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
151
20-132
L
Benzo (g,h,i) perylene
1850 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
115
10-136
Page 66 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Semivolatile Organic Compounds by GCMS - Quality Control
Enthalpy Analytical
Reporting Spike Source %REC RPD
Analyte Result Limit Units Level Result %REC Limits RPD Limit Qual
Batch BFHO127 - SW3550C/EPA600-MS
LCS (BFH0127-BS1)
Prepared: 08/03/2022 Analyzed: 08/04/2022
Benzo (k) fluoranthene
2560 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
160
14-136
L
bis (2-Chloroethoxy) methane
1720 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
108
20-100
L
bis (2-Chloroethyl) ether
1360 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
85.1
13-100
2,2'-Oxybis (1-chloropropane)
1610 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
100
40-125
bis (2-Ethylhexyl) phthalate
2070 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
129
18-137
Butyl benzyl phthalate
1680 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
105
20-141
Chrysene
1690 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
105
21-141
Dibenz (a,h) anthracene
2130 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
133
10-142
Diethyl phthalate
2080 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
130
20-120
L
Dimethyl phthalate
1850 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
116
23-109
L
Di-n-butyl phthalate
3020 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
188
18-136
L
Di-n-octyl phthalate
2500 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
156
10-160
Fluoranthene
3010 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
188
19-138
L
Fluorene
2020 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
126
25-114
L
Hexachlorobenzene
1780 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
111
20-113
Hexachlorobutadiene
2510 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
157
25-125
L
Hexachlorocyclopentadiene
1250 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
77.8
10-125
Hexachloroethane
1830 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
114
25-125
Indeno (1,2,3-cd) pyrene
2320 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
145
10-136
L
Isophorone
1160 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
72.6
10-110
Naphthalene
2160 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
135
18-109
L
Nitrobenzene
1760 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
110
18-104
L
n-Nitrosodimethylamine
1010 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
63.2
18-110
n-Nitrosodi-n-propylamine
1670 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
104
12-102
L
n-Nitrosodiphenylamine
1540 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
96.4
12-97
p-Chloro-m-cresol
1770 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
110
24-120
Pentachlorophenol
1790 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
111
10-116
Phenanthrene
2270 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
142
25-122
L
Phenol
1490 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
92.2
12-115
Pyrene
1380 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
86.3
17-159
Pyridine
- - - - - - - - - - - - - -
1040 ug/kg wet
- - - - - - - - - -
83.3
- - -
ug/kg wet
- - - -
1600
- - -
ug/kg wet
- - - - -
64.9
- - -
0-200
- - - - - - - - -
- - - - - - - -
Page 67 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Semivolatile Organic Compounds by GCMS - Quality Control
Enthalpy Analytical
Reporting Spike Source %REC RPD
Analyte Result Limit Units Level Result %REC Limits RPD Limit Qual
Batch BFHO127 - SW3550C/EPA600-MS
LCS (BFH0127-BS1)
Prepared: 08/03/2022 Analyzed: 08/04/2022
- - - - - - - - - - - - - - - -
Surr:2,4,6-Tribromophenol (Surr)
- - - - - - - - -
3570
- - - - - -
ug/kg wet
- - -
3210
- - - - -
ug/kg wet
- - -
ill
- - - - - - - - -
15-96
- - - - - - - -
S
Surr.- 2-Fluorobiphenyl (Surr)
1850
ug/kg wet
1600
ug/kg wet
116
19-105
S
Surr. 2-Fluorophenol (Surr)
2690
ug/kg wet
3210
ug/kg wet
84.1
12-95
Surr Nitrobenzene-d5 (Surr)
1650
ug/kg wet
1600
ug/kg wet
103
21-100
S
Surr Phenol-d5 (Surr)
3420
ug/kg wet
3210
ug/kg wet
107
13-100
S
Surr p-Terphenyl-d14 (Surr)
1520
ug/kg wet
1600
ug/kg wet
95.1
25-125
Matrix Spike (BFH0127-MS1)
Source: 22G1231-43
Prepared: 08/03/2022 Analyzed: 08/04/2022
1,2,4-Trichlorobenzene
960 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
49.5
70-130
M
1,2-Dichlorobenzene
680 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
35.1
70-130
M
1,3-Dichlorobenzene
742 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
38.3
70-130
M
1,4-Dichlorobenzene
806 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
41.6
70-130
M
2,4,6-Trichlorophenol
1050 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
54.1
10-115
2,4-Dichlorophenol
1080 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
55.7
10-128
2,4-Dimethyl phenol
1010 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
52.0
10-121
2,4-Dinitrophenol
2260 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
117
10-228
2,4-Dinitrotoluene
1470 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
76.0
10-141
2,6-Dinitrotoluene
1180 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
61.0
15-140
2-Chloronaphthalene
961 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
49.6
10-108
2-Chlorophenol
885 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
45.6
10-117
2-Nitrophenol
1010 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
51.8
10-131
3,3'-Dichlorobenzidine
841 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
43.4
10-110
4,6-Dinitro-2-methylphenol
2150 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
ill
10-205
4-Bromophenyl phenyl ether
1120 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
57.8
10-119
4-Chlorophenyl phenyl ether
1090 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
56.2
15-110
4-Nitrophenol
2490 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
128
0-125
M
Acenaphthene
1050 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
54.1
10-124
Acenaphthylene
1060 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
54.8
10-118
Acetophenone
800 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
41.2
0-200
Anthracene
1480 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
76.2
10-143
Benzo (a) anthracene
1360 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
70.2
10-169
Benzo (a) pyrene
1590 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
82.1
10-149
Page 68 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Semivolatile Organic Compounds by GCMS - Quality Control
Enthalpy Analytical
Reporting Spike Source %REC RPD
Analyte Result Limit Units Level Result %REC Limits RPD Limit Qual
Batch BFHO127 - SW3550C/EPA600-MS
Matrix Spike (BFH0127-MS1)
Source: 22G1231-43
Prepared: 08/03/2022 Analyzed: 08/04/2022
Benzo (b) fluoranthene
1930 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
99.4
10-150
Benzo (g,h,i) perylene
676 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
34.8
10-123
Benzo (k) fluoranthene
2020 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
104
10-211
bis (2-Chloroethoxy) methane
845 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
43.6
10-108
bis (2-Chloroethyl) ether
672 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
34.7
10-100
2,2'-Oxybis (1-chloropropane)
748 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
38.6
40-125 M
bis (2-Ethylhexyl) phthalate
1650 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
85.0
10-210
Butyl benzyl phthalate
1370 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
70.8
10-165
Chrysene
1260 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
65.1
10-172
Dibenz (a,h) anthracene
951 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
49.0
10-128
Diethyl phthalate
1470 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
76.0
10-120
Dimethyl phthalate
1200 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
62.0
10-125
Di-n-butyl phthalate
1590 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
82.0
10-133
Di-n-octyl phthalate
2670 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
137
10-196
Fluoranthene
2110 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
109
10-271
Fluorene
1320 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
67.8
10-124
Hexachlorobenzene
1140 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
58.9
10-125
Hexachlorobutadiene
1120 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
58.0
10-125
Hexachlorocyclopentadiene
366 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
18.9
10-125
Hexachloroethane
750 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
38.7
10-220
Indeno (1,2,3-cd) pyrene
1010 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
51.9
10-127
Isophorone
600 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
30.9
10-110
Naphthalene
1000 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
51.6
10-118
Nitrobenzene
975 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
50.3
10-126
n-Nitrosodimethylamine
434 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
22.4
10-110
n-Nitrosodi-n-propylamine
884 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
45.6
10-107
n-Nitrosodiphenylamine
1140 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
58.8
10-107
p-Chloro-m-cresol
1130 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
58.5
10-131
Pentachlorophenol
1420 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
73.1
10-151
Phenanthrene
1540 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
79.4
10-393
Phenol
757 ug/kg dry
96.9
ug/kg dry
1960
<96.9 ug/kg
38.7
10-133
Page 69 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Semivolatile Organic Compounds by GCMS - Quality Control
Enthalpy Analytical
Reporting Spike Source %REC RPD
Analyte Result Limit Units Level Result %REC Limits RPD Limit Qual
Batch BFHO127 - SW3550C/EPA600-MS
Matrix Spike (BFH0127-MS1)
Source: 22G1231-43
Prepared: 08/03/2022 Analyzed: 08/04/2022
Pyrene
1200 ug/kg dry
96.9 ug/kg dry
1940
<96.9 ug/kg
61.7
10-212
Pyridine
525 ug/kg dry
96.9 ug/kg dry
1940
<96.9 ug/kg
27.1
0-200
- - - - - - - - - - - - - -
Surr.- 2,4,6-Tribromophenol (Surr)
- - - - - - - - - -
2590
- - - - - - -
ug/kg dry
- - -
3880
- - - - -
ug/kg dry
- - -
66.7
- - - - - - - - - - - - - - - - -
15-96
Surr. 2-Fluorobiphenyl (Surr)
979
ug/kg dry
1940
ug/kg dry
50.5
19-105
Surr 2-Fluorophenol (Surr)
1590
ug/kg dry
3880
ug/kg dry
40.9
12-95
Surr Nitrobenzene-d5 (Surr)
951
ug/kg dry
1940
ug/kg dry
49.0
21-100
Surr Phenol-d5 (Surr)
1980
ug/kg dry
3880
ug/kg dry
51.0
13-100
Surr p-Terphenyl-d14 (Surr)
1380
ug/kg dry
1940
ug/kg dry
71.1
25-125
Matrix Spike Dup (BFH0127-MSD1)
Source: 22G1231-43
Prepared: 08/03/2022 Analyzed: 08/04/2022
1,2,4-Trichlorobenzene
1110 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
57.0
70-130
14.7
20 M
1,2-Dichlorobenzene
804 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
41.2
70-130
16.8
20 M
1,3-Dichlorobenzene
851 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
43.6
70-130
13.7
20 M
1,4-Dichlorobenzene
935 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
47.9
70-130
14.8
20 M
2,4,6-Trichlorophenol
1080 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
55.2
10-115
2.52
20
2,4-Dichlorophenol
1260 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
64.5
10-128
15.3
20
2,4-Dimethylphenol
1150 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
58.9
10-121
13.1
20
2,4-Dinitrophenol
2180 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
112
10-228
3.61
20
2,4-Dinitrotoluene
1360 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
69.6
10-141
8.11
20
2,6-Dinitrotoluene
1180 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
60.4
15-140
0.436
20
2-Chloronaphthalene
993 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
50.9
10-108
3.20
20
2-Chlorophenol
1040 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
53.3
10-117
16.2
20
2-Nitrophenol
1170 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
60.0
10-131
15.2
20
3,3'-Dichlorobenzidine
851 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
43.6
10-110
1.16
20
4,6-Dinitro-2-methylphenol
2010 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
103
10-205
6.40
20
4-Bromophenyl phenyl ether
1090 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
56.1
10-119
2.34
20
4-Chlorophenyl phenyl ether
1050 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
53.6
15-110
4.05
20
4-Nitrophenol
2150 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
110
0-125
14.4
20
Acenaphthene
1060 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
54.5
10-124
1.39
20
Acenaphthylene
1070 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
55.1
10-118
1.20
20
Acetophenone
924 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
47.3
0-200
14.4
20
Anthracene
1340 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
68.6
10-143
9.74
20
Page 70 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Semivolatile Organic Compounds by GCMS - Quality Control
Enthalpy Analytical
Reporting Spike Source %REC RPD
Analyte Result Limit Units Level Result %REC Limits RPD Limit Qual
Batch BFHO127 - SW3550C/EPA600-MS
Matrix Spike Dup (BFH0127-MSD1)
Source: 22G1231-43
Prepared: 08/03/2022 Analyzed: 08/04/2022
Benzo (a) anthracene
1190 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
60.8
10-169
13.6
20
Benzo (a) pyrene
1400 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
71.7
10-149
12.9
20
Benzo (b) fluoranthene
1700 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
87.0
10-150
12.7
20
Benzo (g,h,i) perylene
641 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
32.8
10-123
5.32
20
Benzo (k) fluoranthene
1600 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
82.0
10-211
23.2
20 P
bis (2-Chloroethoxy) methane
1000 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
51.3
10-108
17.0
20
bis (2-Chloroethyl) ether
769 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
39.4
10-100
13.3
20
2,2'-Oxybis (1-chloropropane)
861 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
44.1
40-125
14.0
20
bis (2-Ethylhexyl) phthalate
1440 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
74.0
10-210
13.2
20
Butyl benzyl phthalate
1200 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
61.5
10-165
13.4
20
Chrysene
1120 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
57.3
10-172
12.1
20
Dibenz (a,h) anthracene
894 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
45.8
10-128
6.10
20
Diethyl phthalate
1370 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
70.1
10-120
7.34
20
Dimethyl phthalate
1210 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
61.9
10-125
0.458
20
Di-n-butyl phthalate
1450 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
74.4
10-133
9.02
20
Di-n-octyl phthalate
2040 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
104
10-196
26.8
20 P
Fluoranthene
1830 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
93.8
10-271
14.1
20
Fluorene
1230 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
63.2
10-124
6.43
20
Hexachlorobenzene
1100 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
56.3
10-125
3.83
20
Hexachlorobutadiene
1290 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
65.9
10-125
13.4
20
Hexachlorocyclopentadiene
471 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
24.1
10-125
25.0
20 P
Hexachloroethane
865 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
44.3
10-220
14.2
20
Indeno (1,2,3-cd) pyrene
939 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
48.1
10-127
6.87
20
Isophorone
685 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
35.1
10-110
13.2
20
Naphthalene
1130 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
57.7
10-118
11.9
20
Nitrobenzene
1110 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
56.6
10-126
12.5
20
n-Nitrosodimethylamine
564 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
28.9
10-110
26.1
20 P
n-Nitrosodi-n-propylamine
1030 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
52.6
10-107
14.9
20
n-Nitrosodiphenylamine
1010 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
51.9
10-107
11.9
20
p-Chloro-m-cresol
1220 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
62.4
10-131
7.17
20
Pentachlorophenol
1330 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
68.0
10-151
6.60
20
Page 71 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road Richmond, Virginia 23230 Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Semivolatile Organic Compounds by GCMS - Quality Control
Enthalpy Analytical
Reporting Spike Source %REC RPD
Analyte Result Limit Units Level Result %REC Limits RPD Limit Qual
Batch BFHO127 - SW3550C/EPA600-M
Matrix Spike Dup (BFH0127-MSD1)
Source: 22G1231-43
Prepared: 08/03/2022 Analyzed: 08/04/2022
Phenanthrene
1410 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
72.3
10-393 8.72
20
Phenol
881 ug/kg dry
97.5
ug/kg dry
1970
<97.5 ug/kg
44.7
10-133 15.1
20
Pyrene
1050 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
53.7
10-212 13.2
20
Pyridine
647 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
33.2
0-200 20.9
20 P
- - - - - - - - - - - - - - -
Surr 2,4,6-Tribromophenol (Surr)
- - - - - - - - -
2520
- - -
- - - -
ug/kg dry
- - -
3900
- - - - -
ug/kg dry
- - -
64.5
- - - - - - - -
15-96
- - - - - - - - -
Surr 2-Fluorobiphenyl (Surr)
1080
ug/kg dry
1950
ug/kg dry
55.1
19-105
Surr 2-Fluorophenol (Surr)
1820
ug/kg dry
3900
ug/kg dry
46.7
12-95
Surr. Nitrobenzene-d5 (Surr)
1100
ug/kg dry
1950
ug/kg dry
56.4
21-100
Surr. Phenol-d5 (Surr)
2220
ug/kg dry
3900
ug/kg dry
56.9
13-100
Surr. p-Terphenyl-d14 (Surr)
1180
ug/kg dry
1950
ug/kg dry
60.6
25-125
Batch BFHO196 - SW3550C/EPA600-MS
Blank (BFH0196-BLK1)
1,2,4,5-Tetrachlorobenzene
1,2,4-Trichlorobenzene
1,2-Dichlorobenzene
1,2-Diphenylhydrazine
1,3-Dichlorobenzene
1,4-Dichlorobenzene
1-Chloronaphthalene
1-Naphthylamine
2, 3,4,6-Tetrachlorophenol
2,4, 5-Trich lorophenol
2,4,6-Trich lorophenol
2,4-Dichlorophenol
2,4-Dimethylphenol
2,4-Dinitrophenol
2,4-Dinitrotoluene
2,6-Dichlorophenol
2,6-Dinitrotoluene
Prepared: 08/04/2022 Analyzed: 08/05/2022
<83.3 ug/kg wet
83.3
ug/kg wet
<83.3 ug/kg wet
83.3
ug/kg wet
<83.3 ug/kg wet
83.3
ug/kg wet
<83.3 ug/kg wet
83.3
ug/kg wet
<83.3 ug/kg wet
83.3
ug/kg wet
<83.3 ug/kg wet
83.3
ug/kg wet
<83.3 ug/kg wet
83.3
ug/kg wet
<83.3 ug/kg wet
83.3
ug/kg wet
<83.3 ug/kg wet
83.3
ug/kg wet
<83.3 ug/kg wet
83.3
ug/kg wet
<83.3 ug/kg wet
83.3
ug/kg wet
<83.3 ug/kg wet
83.3
ug/kg wet
<83.3 ug/kg wet
83.3
ug/kg wet
<83.3 ug/kg wet
83.3
ug/kg wet
<83.3 ug/kg wet
83.3
ug/kg wet
<83.3 ug/kg wet
83.3
ug/kg wet
<83.3 ug/kg wet
83.3
ug/kg wet
Page 72 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Semivolatile Organic Compounds by GCMS - Quality Control
Enthalpy Analytical
Reporting Spike Source %REC RPD
Analyte Result Limit Units Level Result %REC Limits RPD Limit Qual
Batch BFHO196 - SW3550C/EPA600-MS
Blank (BFH0196-BLK1)
Prepared: 08/04/2022 Analyzed: 08/05/2022
2-Chloronaphthalene
<83.3 ug/kg wet
83.3
ug/kg wet
2-Chlorophenol
<83.3 ug/kg wet
83.3
ug/kg wet
2-Methyl naphthalene
<83.3 ug/kg wet
83.3
ug/kg wet
2-Naphthylamine
<83.3 ug/kg wet
83.3
ug/kg wet
2-Nitroaniline
<83.3 ug/kg wet
83.3
ug/kg wet
2-Nitrophenol
<83.3 ug/kg wet
83.3
ug/kg wet
3,3'-Dichlorobenzidine
<83.3 ug/kg wet
83.3
ug/kg wet
3-Methylcholanthrene
<83.3 ug/kg wet
83.3
ug/kg wet
3-Nitroaniline
<83.3 ug/kg wet
83.3
ug/kg wet
4,6-Dinitro-2-methylphenol
<83.3 ug/kg wet
83.3
ug/kg wet
4-Aminobiphenyl
<83.3 ug/kg wet
83.3
ug/kg wet
4-Bromophenyl phenyl ether
<83.3 ug/kg wet
83.3
ug/kg wet
4-Chloroaniline
<83.3 ug/kg wet
83.3
ug/kg wet
4-Chlorophenyl phenyl ether
<83.3 ug/kg wet
83.3
ug/kg wet
4-Nitroaniline
<83.3 ug/kg wet
83.3
ug/kg wet
4-Nitrophenol
<83.3 ug/kg wet
83.3
ug/kg wet
7,12-Dimethylbenz (a) anthracene
<83.3 ug/kg wet
83.3
ug/kg wet
Acenaphthene
<83.3 ug/kg wet
83.3
ug/kg wet
Acenaphthylene
<83.3 ug/kg wet
83.3
ug/kg wet
Acetophenone
<83.3 ug/kg wet
83.3
ug/kg wet
Aniline
<83.3 ug/kg wet
83.3
ug/kg wet
Anthracene
<83.3 ug/kg wet
83.3
ug/kg wet
Benzidine
<83.3 ug/kg wet
83.3
ug/kg wet
Benzo (a) anthracene
<83.3 ug/kg wet
83.3
ug/kg wet
Benzo (a) pyrene
<83.3 ug/kg wet
83.3
ug/kg wet
Benzo (b) fluoranthene
<83.3 ug/kg wet
83.3
ug/kg wet
Benzo (g,h,i) perylene
<83.3 ug/kg wet
83.3
ug/kg wet
Benzo (k) fluoranthene
<83.3 ug/kg wet
83.3
ug/kg wet
Benzoic acid
<83.3 ug/kg wet
83.3
ug/kg wet
Benzyl alcohol
<83.3 ug/kg wet
83.3
ug/kg wet
bis (2-Chloroethoxy) methane
<83.3 ug/kg wet
83.3
ug/kg wet
Page 73 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Semivolatile Organic Compounds by GCMS - Quality Control
Enthalpy Analytical
Reporting Spike Source %REC RPD
Analyte Result Limit Units Level Result %REC Limits RPD Limit Qual
Batch BFHO196 - SW3550C/EPA600-MS
Blank (BFH0196-BLK1)
Prepared: 08/04/2022 Analyzed: 08/05/2022
bis (2-Chloroethyl) ether
<83.3 ug/kg wet
83.3
ug/kg wet
2,2'-Oxybis (1-chloropropane)
<83.3 ug/kg wet
83.3
ug/kg wet
bis (2-Ethylhexyl) phthalate
<83.3 ug/kg wet
83.3
ug/kg wet
Butyl benzyl phthalate
<83.3 ug/kg wet
83.3
ug/kg wet
Chrysene
<83.3 ug/kg wet
83.3
ug/kg wet
Dibenz (a,h) anthracene
<83.3 ug/kg wet
83.3
ug/kg wet
Dibenz (a j) acridine
<83.3 ug/kg wet
83.3
ug/kg wet
Dibenzofuran
<83.3 ug/kg wet
83.3
ug/kg wet
Diethyl phthalate
<83.3 ug/kg wet
83.3
ug/kg wet
Dimethyl phthalate
<83.3 ug/kg wet
83.3
ug/kg wet
Di-n-butyl phthalate
<83.3 ug/kg wet
83.3
ug/kg wet
Di-n-octyl phthalate
<83.3 ug/kg wet
83.3
ug/kg wet
Diphenylamine
<83.3 ug/kg wet
83.3
ug/kg wet
Ethyl methanesulfonate
<83.3 ug/kg wet
83.3
ug/kg wet
Fluoranthene
<83.3 ug/kg wet
83.3
ug/kg wet
Fluorene
<83.3 ug/kg wet
83.3
ug/kg wet
Hexachlorobenzene
<83.3 ug/kg wet
83.3
ug/kg wet
Hexachlorobutadiene
<83.3 ug/kg wet
83.3
ug/kg wet
Hexachlorocyclopentadiene
<83.3 ug/kg wet
83.3
ug/kg wet
Hexachloroethane
<83.3 ug/kg wet
83.3
ug/kg wet
Indeno (1,2,3-cd) pyrene
<83.3 ug/kg wet
83.3
ug/kg wet
Isophorone
<83.3 ug/kg wet
83.3
ug/kg wet
m+p-Cresols
<83.3 ug/kg wet
83.3
ug/kg wet
Methyl methanesulfonate
<83.3 ug/kg wet
83.3
ug/kg wet
Naphthalene
<83.3 ug/kg wet
83.3
ug/kg wet
Nitrobenzene
<83.3 ug/kg wet
83.3
ug/kg wet
n-Nitrosodimethylamine
<83.3 ug/kg wet
83.3
ug/kg wet
n-Nitrosodi-n-butylamine
<83.3 ug/kg wet
83.3
ug/kg wet
n-Nitrosodi-n-propylamine
<83.3 ug/kg wet
83.3
ug/kg wet
n-Nitrosodiphenylamine
<83.3 ug/kg wet
83.3
ug/kg wet
n-Nitrosopiperidine
<83.3 ug/kg wet
83.3
ug/kg wet
Page 74 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Semivolatile Organic Compounds by GCMS - Quality Control
Enthalpy Analytical
Reporting Spike Source %REC RPD
Analyte Result Limit Units Level Result %REC Limits RPD Limit Qual
Batch BFHO196 - SW3550C/EPA600-MS
Blank (BFH0196-BLK1)
Prepared: 08/04/2022 Analyzed: 08/05/2022
o+m+p-Cresols
<83.3 ug/kg wet
83.3
ug/kg wet
o-Cresol
<83.3 ug/kg wet
83.3
ug/kg wet
p-(Dimethylamino) azobenzene
<83.3 ug/kg wet
83.3
ug/kg wet
p-Chloro-m-cresol
<83.3 ug/kg wet
83.3
ug/kg wet
Pentachloronitrobenzene (quintozene)
<83.3 ug/kg wet
83.3
ug/kg wet
Pentachlorophenol
<83.3 ug/kg wet
83.3
ug/kg wet
Phenacetin
<83.3 ug/kg wet
83.3
ug/kg wet
Phenanthrene
<83.3 ug/kg wet
83.3
ug/kg wet
Phenol
<83.3 ug/kg wet
83.3
ug/kg wet
Pronamide
<83.3 ug/kg wet
83.3
ug/kg wet
Pyrene
<83.3 ug/kg wet
83.3
ug/kg wet
Pyridine
<83.3 ug/kg wet
83.3
ug/kg wet
- - - - - - - - - - - - - - -
Surr. 2,4,6-Tribromophenol (Surr)
- - - - - - - - -
2050
- - -
- - - -
ug/kg wet
- - - - - -
3140
- - - - -
65.1
- - - - - - - - - - - - - - - - -
15-96
Surr. 2-Fluorobiphenyl (Surr)
1170
ug/kg wet
1570
74.7
19-105
Surr. 2-Fluorophenol (Surr)
1780
ug/kg wet
3140
56.5
12-95
Surr. Nitrobenzene-d5 (Surr)
1020
ug/kg wet
1570
64.8
21-100
Surr. Phenol-d5 (Surr)
2030
ug/kg wet
3140
64.7
13-100
Surr. p-Terphenyl-04 (Surr)
1120
ug/kg wet
1570
71.5
25-125
LCS (BFH0196-BS1)
Prepared: 08/04/2022Analyzed: 08/05/2022
1,2,4-Trichlorobenzene
1290 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
79.6
70-130
1,2-Dichlorobenzene
1190 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
73.0
70-130
1,3-Dichlorobenzene
1120 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
69.1
70-130 L
1,4-Dichlorobenzene
1180 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
72.7
70-130
2,4,6-Trichlorophenol
1160 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
71.5
20-115
2,4-Dichlorophenol
1350 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
83.4
20-111
2,4-Dimethyl phenol
1280 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
78.9
20-110
2,4-Dinitrophenol
2300 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
141
10-169
2,4-Dinitrotoluene
1470 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
90.7
21-125
2,6-Dinitrotoluene
1270 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
78.0
15-140
2-Chloronaphthalene
1210 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
74.6
22-105
2-Chlorophenol
1110 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
68.1
15-107
Page 75 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Semivolatile Organic Compounds by GCMS - Quality Control
Enthalpy Analytical
Reporting Spike Source %REC RPD
Analyte Result Limit Units Level Result %REC Limits RPD Limit Qual
Batch BFHO196 - SW3550C/EPA600-MS
LCS (BFH0196-BS1)
Prepared: 08/04/2022 Analyzed: 08/05/2022
2-Nitrophenol
1220 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
75.3
20-115
3,3'-Dichlorobenzidine
1150 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
70.7
10-110
4,6-Dinitro-2-methylphenol
2120 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
130
40-130 L
4-Bromophenyl phenyl ether
1220 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
75.4
20-114
4-Chlorophenyl phenyl ether
1170 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
72.1
15-110
4-Nitrophenol
2480 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
153
0-125 L
Acenaphthene
1260 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
77.9
24-110
Acenaphthylene
1290 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
79.3
25-106
Acetophenone
1020 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
63.0
0-200
Anthracene
1600 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
98.9
25-117
Benzo (a) anthracene
1390 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
85.6
25-127
Benzo (a) pyrene
1680 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
103
18-127
Benzo (b) fluoranthene
2120 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
130
20-132
Benzo (g,h,i) perylene
694 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
42.8
10-136
Benzo (k) fluoranthene
1940 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
120
14-136
bis (2-Chloroethoxy) methane
1090 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
67.4
20-100
bis (2-Chloroethyl) ether
880 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
54.2
13-100
2,2'-Oxybis (1-chloropropane)
1050 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
64.6
40-125
bis (2-Ethylhexyl) phthalate
1610 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
99.1
18-137
Butyl benzyl phthalate
1400 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
86.1
20-141
Chrysene
1360 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
83.5
21-141
Dibenz (a,h) anthracene
957 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
59.0
10-142
Diethyl phthalate
1550 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
95.3
20-120
Dimethyl phthalate
1290 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
79.5
23-109
Di-n-butyl phthalate
1840 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
113
18-136
Di-n-octyl phthalate
2490 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
153
10-160
Fluoranthene
2280 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
141
19-138 L
Fluorene
1400 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
86.1
25-114
Hexachlorobenzene
1240 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
76.5
20-113
Hexachlorobutadiene
1590 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
97.6
25-125
Hexachlorocyclopentadiene
588 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
36.2
10-125
Page 76 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Semivolatile Organic Compounds by GCMS - Quality Control
Enthalpy Analytical
Reporting Spike Source %REC RPD
Analyte Result Limit Units Level Result %REC Limits RPD Limit Qual
Batch BFHO196 - SW3550C/EPA600-MS
LCS (BFH0196-BS1)
Prepared: 08/04/2022 Analyzed: 08/05/2022
Hexachloroethane
1140 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
70.3
25-125
Indeno (1,2,3-cd) pyrene
1050 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
64.8
10-136
Isophorone
761 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
46.9
10-110
Naphthalene
1340 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
82.8
18-109
Nitrobenzene
1200 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
74.0
18-104
n-Nitrosodimethylamine
553 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
34.1
18-110
n-Nitrosodi-n-propylamine
1110 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
68.7
12-102
n-Nitrosodiphenylamine
1160 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
71.4
12-97
p-Chloro-m-cresol
1290 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
79.3
24-120
Pentachlorophenol
1530 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
94.5
10-116
Phenanthrene
1640 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
101
25-122
Phenol
956 ug/kg wet
83.3
ug/kg wet
1640
ug/kg wet
58.3
12-115
Pyrene
1190 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
73.3
17-159
Pyridine
570 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
35.1
0-200
- - - - - - - - - - - - - -
Surr. 2,4,6-Tribromophenol (Surr)
- - - - - - - - - -
2630
- - -
- - - -
ug/kg wet
- - -
3250
- - - - -
ug/kg wet
- - -
81.1
- - - - - - - - - - - - - - - - -
15-96
Surr. 2-Fluorobiphenyl (Surr)
1270
ug/kg wet
1620
ug/kg wet
78.2
19-105
Surr. 2-Fluorophenol (Surr)
1570
ug/kg wet
3250
ug/kg wet
48.3
12-95
Surr. Nitrobenzene-d5 (Surr)
1180
ug/kg wet
1620
ug/kg wet
72.8
21-100
Surr. Phenol-d5 (Surr)
2390
ug/kg wet
3250
ug/kg wet
73.6
13-100
Surr. p-Terphenyl-04 (Surr)
1360
ug/kg wet
1620
ug/kg wet
83.5
25-125
Matrix Spike (BFH0196-MS1)
Source: 22HO127-03
Prepared: 08/04/2022 Analyzed: 08/05/2022
1,2,4-Trichlorobenzene
1190 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
61.8
70-130 M
1,2-Dichlorobenzene
989 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
51.4
70-130 M
1,3-Dichlorobenzene
935 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
48.6
70-130 M
1,4-Dichlorobenzene
1010 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
52.4
70-130 M
2,4,6-Trichlorophenol
1090 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
56.7
10-115
2,4-Dichlorophenol
1270 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
66.0
10-128
2,4-Dimethylphenol
1170 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
60.7
10-121
2,4-Dinitrophenol
1690 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
87.8
10-228
2,4-Dinitrotoluene
1470 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
76.4
10-141
2,6-Dinitrotoluene
1270 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
66.0
15-140
Page 77 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Semivolatile Organic Compounds by GCMS - Quality Control
Enthalpy Analytical
Reporting Spike Source %REC RPD
Analyte Result Limit Units Level Result %REC Limits RPD Limit Qual
Batch BFHO196 - SW3550C/EPA600-MS
Matrix Spike (BFH0196-MS1)
Source: 22HO127-03
Prepared: 08/04/2022 Analyzed: 08/05/2022
2-Chloronaphthalene
1130 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
58.6
10-108
2-Chlorophenol
998 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
51.9
10-117
2-Nitrophenol
1130 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
58.9
10-131
3,3'-Dichlorobenzidine
980 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
51.0
10-110
4,6-Dinitro-2-methylphenol
1950 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
101
10-205
4-Bromophenyl phenyl ether
1130 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
58.8
10-119
4-Chlorophenyl phenyl ether
1180 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
61.3
15-110
4-Nitrophenol
2040 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
106
0-125
Acenaphthene
1210 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
62.8
10-124
Acenaphthylene
1200 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
62.5
10-118
Acetophenone
888 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
46.2
0-200
Anthracene
1440 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
75.0
10-143
Benzo (a) anthracene
1240 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
64.3
10-169
Benzo (a) pyrene
1480 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
76.9
10-149
Benzo (b) fluoranthene
1690 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
87.7
10-150
Benzo (g,h,i) perylene
700 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
36.4
10-123
Benzo (k) fluoranthene
1820 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
94.6
10-211
bis (2-Chloroethoxy) methane
1030 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
53.6
10-108
bis (2-Chloroethyl) ether
760 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
39.5
10-100
2,2'-Oxybis (1-chloropropane)
937 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
48.7
40-125
bis (2-Ethylhexyl) phthalate
1480 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
77.2
10-210
Butyl benzyl phthalate
1270 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
66.2
10-165
Chrysene
1190 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
62.0
10-172
Dibenz (a,h) anthracene
926 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
48.2
10-128
Diethyl phthalate
1450 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
75.6
10-120
Dimethyl phthalate
1280 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
66.6
10-125
Di-n-butyl phthalate
1490 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
77.6
10-133
Di-n-octyl phthalate
2190 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
114
10-196
Fluoranthene
1930 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
100
10-271
Fluorene
1360 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
70.8
10-124
Hexachlorobenzene
1170 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
60.7
10-125
Page 78 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Semivolatile Organic Compounds by GCMS - Quality Control
Enthalpy Analytical
Reporting Spike Source %REC RPD
Analyte Result Limit Units Level Result %REC Limits RPD Limit Qual
Batch BFHO196 - SW3550C/EPA600-MS
Matrix Spike (BFH0196-MS1)
Source: 22HO127-03
Prepared: 08/04/2022 Analyzed: 08/05/2022
Hexachlorobutadiene
1400 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
73.0
10-125
Hexachlorocyclopentadiene
616 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
32.0
10-125
Hexachloroethane
961 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
50.0
10-220
Indeno (1,2,3-cd) pyrene
1030 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
53.6
10-127
Isophorone
710 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
36.9
10-110
Naphthalene
1210 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
62.7
10-118
Nitrobenzene
1080 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
56.2
10-126
n-Nitrosodimethylamine
556 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
28.9
10-110
n-Nitrosodi-n-propylamine
1040 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
54.0
10-107
n-Nitrosodiphenylamine
1150 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
60.0
10-107
p-Chloro-m-cresol
1240 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
64.6
10-131
Pentachlorophenol
1320 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
68.4
10-151
Phenanthrene
1510 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
78.6
10-393
Phenol
834 ug/kg dry
96.1
ug/kg dry
1940
<96.1 ug/kg
42.9
10-133
Pyrene
1090 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
56.9
10-212
Pyridine
603 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
31.3
0-200
- - - - - - - - - - - - - -
Surr. 2,4,6-Tribromophenol (Surr)
- - - - - - - - - -
2530
- - -
- - - -
ug/kg dry
- - -
3850
- - - - -
ug/kg dry
- - -
65.9
- - - - - - - - - - - - - - - - -
15-96
Surr. 2-Fluorobiphenyl (Surr)
1200
ug/kg dry
1920
ug/kg dry
62.4
19-105
Surr. 2-Fluorophenol (Surr)
1770
ug/kg dry
3850
ug/kg dry
46.0
12-95
Surr. Nitrobenzene-d5 (Surr)
1110
ug/kg dry
1920
ug/kg dry
57.6
21-100
Surr. Phenol-d5 (Surr)
2200
ug/kg dry
3850
ug/kg dry
57.3
13-100
Surr.- p-Terphenyl-04 (Surr)
1300
ug/kg dry
1920
ug/kg dry
67.5
25-125
Matrix Spike Dup (BFH0196-MSD1)
Source: 22HO127-03
Prepared: 08/04/2022 Analyzed: 08/05/2022
1,2,4-Trichlorobenzene
1540 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
77.5
70-130
25.7
20
P
1,2-Dichlorobenzene
1290 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
65.0
70-130
26.6
20
M, P
1,3-Dichlorobenzene
1200 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
60.3
70-130
24.6
20
M, P
1,4-Dichlorobenzene
1300 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
65.5
70-130
25.4
20
M, P
2,4,6-Trichlorophenol
1410 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
71.0
10-115
25.7
20
P
2,4-Dichlorophenol
1640 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
82.8
10-128
25.8
20
P
2,4-Dimethylphenol
1510 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
76.1
10-121
25.7
20
P
2,4-Dinitrophenol
2290 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
115
10-228
30.0
20
P
Page 79 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Semivolatile Organic Compounds by GCMS - Quality Control
Enthalpy Analytical
Reporting Spike Source %REC RPD
Analyte Result Limit Units Level Result %REC Limits RPD Limit Qual
Batch BFHO196 - SW3550C/EPA600-MS
Matrix Spike Dup (BFH0196-MSD1)
Source: 22HO127-03
Prepared: 08/04/2022 Analyzed: 08/05/2022
2,4-Dinitrotoluene
1800 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
90.7
10-141
20.4
20
P
2,6-Dinitrotoluene
1590 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
80.3
15-140
22.7
20
P
2-Chloronaphthalene
1500 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
75.7
10-108
28.6
20
P
2-Chlorophenol
1310 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
66.0
10-117
27.1
20
P
2-Nitrophenol
1490 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
75.2
10-131
27.4
20
P
3,3'-Dichlorobenzidine
1150 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
58.1
10-110
16.3
20
4,6-Dinitro-2-methylphenol
2360 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
119
10-205
18.9
20
4-Bromophenyl phenyl ether
1490 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
75.1
10-119
27.5
20
P
4-Chlorophenyl phenyl ether
1530 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
77.1
15-110
26.0
20
P
4-Nitrophenol
2560 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
129
0-125
22.8
20
M, P
Acenaphthene
1590 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
79.9
10-124
27.2
20
P
Acenaphthylene
1650 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
83.3
10-118
31.7
20
P
Acetophenone
1160 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
58.2
0-200
26.2
20
P
Anthracene
1850 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
93.1
10-143
24.7
20
P
Benzo (a) anthracene
1560 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
78.6
10-169
23.3
20
P
Benzo (a) pyrene
1910 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
95.9
10-149
25.2
20
P
Benzo (b) fluoranthene
2600 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
131
10-150
42.4
20
P
Benzo (g,h,i) perylene
790 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
39.8
10-123
12.0
20
Benzo (k) fluoranthene
2080 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
105
10-211
13.5
20
bis (2-Chloroethoxy) methane
1380 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
69.3
10-108
28.8
20
P
bis (2-Chloroethyl) ether
1020 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
51.2
10-100
29.1
20
P
2,2'-Oxybis (1-chloropropane)
1210 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
60.8
40-125
25.3
20
P
bis (2-Ethylhexyl) phthalate
1900 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
95.6
10-210
24.6
20
P
Butyl benzyl phthalate
1560 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
78.7
10-165
20.4
20
P
Chrysene
1460 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
73.3
10-172
19.9
20
Dibenz (a,h) anthracene
1070 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
53.9
10-128
14.5
20
Diethyl phthalate
1890 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
95.2
10-120
26.1
20
P
Dimethyl phthalate
1660 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
83.6
10-125
25.8
20
P
Di-n-butyl phthalate
2040 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
103
10-133
30.9
20
P
Di-n-octyl phthalate
3010 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
152
10-196
31.9
20
P
Fluoranthene
2600 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
131
10-271
29.4
20
P
Page 80 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Semivolatile Organic Compounds by GCMS - Quality Control
Enthalpy Analytical
Reporting Spike Source %REC RPD
Analyte Result Limit Units Level Result %REC Limits RPD Limit Qual
Batch BFHO196 - SW3550C/EPA600-MS
Matrix Spike Dup (BFH0196-MSD1)
Source: 22HO127-03
Prepared: 08/04/2022 Analyzed: 08/05/2022
Fluorene
1810 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
91.0
10-124
28.2
20
P
Hexachlorobenzene
1520 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
76.7
10-125
26.5
20
P
Hexachlorobutadiene
1870 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
94.0
10-125
28.3
20
P
Hexachlorocyclopentadiene
877 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
44.1
10-125
34.9
20
P
Hexachloroethane
1250 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
63.1
10-220
26.5
20
P
Indeno (1,2,3-cd) pyrene
1160 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
58.6
10-127
12.0
20
Isophorone
940 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
47.3
10-110
27.9
20
P
Naphthalene
1600 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
80.8
10-118
28.3
20
P
Nitrobenzene
1470 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
74.0
10-126
30.6
20
P
n-Nitrosodimethylamine
745 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
37.5
10-110
29.0
20
P
n-Nitrosodi-n-propylamine
1390 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
70.0
10-107
29.0
20
P
n-Nitrosodiphenylamine
1410 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
71.0
10-107
20.0
20
p-Chloro-m-cresol
1600 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
80.3
10-131
24.9
20
P
Pentachlorophenol
1550 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
78.0
10-151
16.3
20
Phenanthrene
1950 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
98.0
10-393
25.2
20
P
Phenol
1140 ug/kg dry
99.3
ug/kg dry
2010
<99.3 ug/kg
56.7
10-133
30.9
20
P
Pyrene
1330 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
66.8
10-212
19.2
20
Pyridine
663 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
33.4
0-200
9.55
20
- - - - - - - - - - - - - - -
Surr. 2,4,6-Tribromophenol (Surr)
- - - - - - - - -
3200
- - -
- - - -
ug/kg dry
- - -
3970
- - - - -
ug/kg dry
- - -
80.6
- - - -
15-96
- - - -
- - -
- - - - - -
Surr. 2-Fluorobiphenyl (Surr)
1650
ug/kg dry
1990
ug/kg dry
82.8
19-105
Surr. 2-Fluorophenol (Surr)
2340
ug/kg dry
3970
ug/kg dry
58.8
12-95
Surr: Nitrobenzene-d5 (Surr)
1530
ug/kg dry
1990
ug/kg dry
77.0
21-100
Surr.- Phenol-d5 (Surr)
3060
ug/kg dry
3970
ug/kg dry
76.9
13-100
Surr.- p-Terphenyl-d14 (Surr)
1580
ug/kg dry
1990
ug/kg dry
79.5
25-125
Page 81 of 92

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1941 Reymet Road Richmond, Virginia 23230 Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Organochlorine Pesticides and PCBs by GC/ECD - Quality Control
Enthalpy Analytical
Reporting Spike Source %REC RPD
Analyte Result Limit Units Level Result %REC Limits RPD Limit Qual
Batch BFH0282 - SW3550B
Blank (BFH0282-BLK1)
Prepared: 08/08/2022 Analyzed: 08/09/2022
PCB as Aroclor 1016
<0.100 mg/kg wet
0.100
mg/kg wet
PCB as Aroclor 1221
<0.100 mg/kg wet
0.100
mg/kg wet
PCB as Aroclor 1232
<0.100 mg/kg wet
0.100
mg/kg wet
PCB as Aroclor 1242
<0.100 mg/kg wet
0.100
mg/kg wet
PCB as Aroclor 1248
<0.100 mg/kg wet
0.100
mg/kg wet
PCB as Aroclor 1254
<0.100 mg/kg wet
0.100
mg/kg wet
PCB as Aroclor 1260
<0.100 mg/kg wet
0.100
mg/kg wet
- - - - - - - - - - - - -
Surr DCB
- - - - - - - - - - -
0.0290
- - -
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
mg/kg wet 0.0331 87.5 30-105
Surr. TCMX
0.0132
mg/kg wet 0.0331 39.8 30-105
LCS (BFH0282-BS1)
Prepared: 08/08/2022 Analyzed: 08/09/2022
PCB as Aroclor 1016
0.125 mg/kg wet
0.100 mg/kg wet
0.159 mg/kg wet
78.5
70-130
PCB as Aroclor 1260
0.159 mg/kg wet
0.100 mg/kg wet
0.159 mg/kg wet
99.8
70-130
- - - - - - - - - - - -
Surr: DCB
- - - - - - - - - - - -
0.0317
- - - - - - -
mg/kg wet
- - - - - - - -
0.0318 mg/kg wet
- - -
99.5
- - - - - - - - - - - - - - - - -
30-105
Surr: TCMX
0.0309
mg/kg wet
0.0318 mg/kg wet
96.9
30-105
Matrix Spike (BFH0282-MS1)
Source: 22HO282-01
Prepared: 08/08/2022 Analyzed: 08/09/2022
PCB as Aroclor 1016
0.221 mg/kg dry
0.129 mg/kg dry
0.216 <0.129 mg/kg
102
70-130
PCB as Aroclor 1260
0.175 mg/kg dry
0.129 mg/kg dry
0.216 <0.129 mg/kg
81.4
70-130
- - - - - - - - - - - - - -
Surr DCB
- - - - - - - - -
0.0632
- - - - - - - -
mg/kg dry
- - - - - - - - -
0.0431 mg/kg dry
- -
147
- - - - - - - - - - - - - - - - -
30-105 s
Surr. TCMX
0.0418
mg/kg dry
0.0431 mg/kg dry
96.9
30-105
Matrix Spike Dup (BFH0282-MSD1)
Source: 22HO282-01
Prepared: 08/08/2022 Analyzed:
08/09/2022
PCB as Aroclor 1016
0.205 mg/kg dry
0.130 mg/kg dry
0.217 <0.130 mg/kg
94.5
70-130 7.19 20
PCB as Aroclor 1260
0.157 mg/kg dry
0.130 mg/kg dry
0.217 <0.130 mg/kg
72.5
70-130 10.8 20
- - - - - - - - - - - - - - -
Surr. DCB
- - - - - - - - -
0.0545
- - - - - - -
mg/kg dry
- - - - - - - - -
0.0434 mg/kg dry
- -
126
- - - - - - - - - - - - - - - - -
30-105 S
Surr. TCMX
0.0384
mg/kg dry
0.0434 mg/kg dry
88.5
30-105
Page 82 of 92

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1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Wet Chemistry Analysis - Quality Control
Enthalpy Analytical
Reporting Spike Source %REC RPD
knalyte Result Limit Units Level Result %REC Limits RPD Limit Qual
Batch BFHO164 - No Prep Wet Chem
Blank (BFH0164-BLK1) Prepared & Analyzed: 08/04/2022
Percent Solids 100 % 0.10 %
Duplicate (BFH0164-DUP1) Source: 22HO122-01 Prepared &Analyzed: 08/04/2022
Percent Solids 79.1 % 0.10 % 75.4 % 4.82 20
Duplicate (BFH0164-DUP2) Source: 22HO122-05 Prepared & Analyzed: 08/04/2022
Percent Solids 83.1 % 0.10 % 86.3 % 3.83 20
Batch BFH0245 - No Prep Wet Chem
Blank (BFH0245-BLK1) Prepared & Analyzed: 08/05/2022
Percent Solids 100 % 0.10 %
Duplicate (BFH0245-DUP1) Source: 22HO122-02 Prepared &Analyzed: 08/05/2022
Percent Solids 87.3 % 0.10 % 85.4 % 2.12 20
Page 83 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name:
S&ME - Raleigh
Date Issued: August 11, 2022 14:28
3201 Spring Forest Road
Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To:
Sam Watts
Client Site I.D.:
Welcome Ventures
Certified Analyses included in this Report
Analyte
Certifications
SW8082A in Solids
PCB as Aroclor 1016
VELAP,PADEP,NCDEQ,WVDEP
PCB as Aroclor 1221
VELAP,PADEP,NCDEQ,WVDEP
PCB as Aroclor 1232
VELAP,PADEP,NCDEQ,WVDEP
PCB as Aroclor 1242
VELAP,PADEP,NCDEQ,WVDEP
PCB as Aroclor 1248
VELAP,PADEP,NCDEQ,WVDEP
PCB as Aroclor 1254
VELAP,PADEP,NCDEQ,WVDEP
PCB as Aroclor 1260
VELAP,PADEP,NCDEQ,WVDEP
SW8260D in Solids
1,1,1,2-Tetrachloroethane
VELAP,PADEP,NCDEQ,WVDEP
1, 1, 1 -Trichloroethane
VELAP,PADEP,NCDEQ,WVDEP
1,1,2,2-Tetrachloroethane
VELAP,PADEP,NCDEQ,WVDEP
1,1,2-Trichloroethane
VELAP,PADEP,NCDEQ,WVDEP
1,1-Dichloroethane
VELAP,PADEP,NCDEQ,WVDEP
1,1-Dichloroethylene
VELAP,PADEP,NCDEQ,WVDEP
1,1-Dichloropropene
VELAP,PADEP,NCDEQ,WVDEP
1,2,3-Trichlorobenzene
VELAP,PADEP,NCDEQ,WVDEP
1,2,3-Trichloropropane
VELAP,PADEP,NCDEQ,WVDEP
1,2,4-Trichlorobenzene
VELAP,PADEP,NCDEQ,WVDEP
1,2,4-Trimethyl benzene
VELAP,PADEP,NCDEQ,WVDEP
1,2-Dibromo-3-chloropropane (DBCP)
VELAP,PADEP,NCDEQ,WVDEP
1,2-Dibromoethane (EDB)
VELAP,PADEP,NCDEQ,WVDEP
1,2-Dichlorobenzene
VELAP,PADEP,NCDEQ,WVDEP
1,2-Dichloroethane
VELAP,PADEP,NCDEQ,WVDEP
1,2-Dichloropropane
VELAP,PADEP,NCDEQ,WVDEP
1,3,5-Trimethyl benzene
VELAP,PADEP,NCDEQ,WVDEP
1,3-Dichlorobenzene
VELAP,PADEP,NCDEQ,WVDEP
1,3-Dichloropropane
VELAP,PADEP,NCDEQ,WVDEP
1,4-Dichlorobenzene
VELAP,PADEP,NCDEQ,WVDEP
2,2-Dichloropropane
VELAP,PADEP,NCDEQ,WVDEP
2-Butanone (MEK)
VELAP,PADEP,NCDEQ,WVDEP
2-Chlorotoluene
VELAP,PADEP,NCDEQ,WVDEP
2-Hexanone (MBK)
VELAP,PADEP,NCDEQ,WVDEP
4-Chlorotoluene
VELAP,PADEP,NCDEQ,WVDEP
4-Isopropyltoluene
VELAP,PADEP,NCDEQ,WVDEP
4-Methyl-2-pentanone (MIBK)
VELAP,PADEP,NCDEQ,WVDEP
Acetone
VELAP,PADEP,NCDEQ,WVDEP
Benzene
VELAP,PADEP,NCDEQ,WVDEP
Page 84 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Certified Analyses included in this Report
Analyte Certifications
Bromobenzene
VELAP,PADEP,NCDEQ,WVDEP
Bromochloromethane
VELAP,PADEP,NCDEQ,WVDEP
Bromodichloromethane
VELAP,PADEP,NCDEQ,WVDEP
Bromoform
VELAP,PADEP,NCDEQ,WVDEP
Bromomethane
VELAP,PADEP,NCDEQ,WVDEP
Carbon disulfide
VELAP,PADEP,NCDEQ,WVDEP
Carbon tetrachloride
VELAP,PADEP,NCDEQ,WVDEP
Chlorobenzene
VELAP,PADEP,NCDEQ,WVDEP
Chloroethane
VELAP,PADEP,NCDEQ,WVDEP
Chloroform
VELAP,PADEP,NCDEQ,WVDEP
Chloromethane
VELAP,PADEP,NCDEQ,WVDEP
cis- 1,2-Dichloroethylene
VELAP,PADEP,NCDEQ,WVDEP
cis- 1,3-Dichloropropene
VELAP,PADEP,NCDEQ,WVDEP
Dibromochloromethane
VELAP,PADEP,NCDEQ,WVDEP
Dibromomethane
VELAP,PADEP,NCDEQ,WVDEP
Dichlorodifluoromethane
VELAP,PADEP,NCDEQ,WVDEP
Di -isopropyl ether (DIPE)
VELAP,PADEP,NCDEQ,WVDEP
Ethylbenzene
VELAP,PADEP,NCDEQ,WVDEP
Hexachlorobutadiene
VELAP,PADEP,NCDEQ,WVDEP
lodomethane
VELAP,PADEP,NCDEQ,WVDEP
Isopropylbenzene
VELAP,PADEP,NCDEQ,WVDEP
m+p-Xylenes
VELAP,PADEP,NCDEQ,WVDEP
Methylene chloride
VELAP,PADEP,NCDEQ,WVDEP
Methyl-t-butyl ether (MTBE)
VELAP,PADEP,NCDEQ,WVDEP
Naphthalene
VELAP,PADEP,NCDEQ,WVDEP
n-Butylbenzene
VELAP,PADEP,NCDEQ,WVDEP
n-Propylbenzene
VELAP,PADEP,NCDEQ,WVDEP
o-Xylene
VELAP,PADEP,NCDEQ,WVDEP
sec-Butylbenzene
VELAP,PADEP,NCDEQ,WVDEP
Styrene
VELAP,PADEP,NCDEQ,WVDEP
tert-Butylbenzene
VELAP,PADEP,NCDEQ,WVDEP
Tetrachloroethylene (PCE)
VELAP,PADEP,NCDEQ,WVDEP
Toluene
VELAP,PADEP,NCDEQ,WVDEP
trans-1,2-Dichloroethylene
VELAP,PADEP,NCDEQ,WVDEP
trans-1,3-Dichloropropene
VELAP,PADEP,NCDEQ,WVDEP
Trichloroethylene
VELAP,PADEP,NCDEQ,WVDEP
Trichlorofluoromethane
VELAP,PADEP,NCDEQ,WVDEP
Vinyl acetate
VELAP,PADEP,NCDEQ,WVDEP
Page 85 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name:
S&ME - Raleigh
Date Issued: August 11, 2022 14:28
3201 Spring Forest Road
Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To:
Sam Watts
Client Site I.D.:
Welcome Ventures
Certified Analyses included in this Report
Analyte
Certifications
Vinyl chloride
VELAP,PADEP,NCDEQ,WVDEP
Xylenes, Total
VELAP,PADEP,NCDEQ,WVDEP
Dibromofluoromethane (Surr)
VELAP
SW8270E in Solids
1,2,4,5-Tetrachlorobenzene
VELAP,PADEP,NCDEQ,WVDEP
1,2,4-Trichlorobenzene
VELAP,PADEP,NCDEQ,WVDEP
1,2-Dichlorobenzene
VELAP,PADEP,NCDEQ,WVDEP
1,2-Diphenylhydrazine
VELAP,WVDEP
1,3-Dichlorobenzene
VELAP,PADEP,NCDEQ,WVDEP
1,4-Dichlorobenzene
VELAP,PADEP,NCDEQ,WVDEP
1-Chloronaphthalene
VELAP,PADEP,NCDEQ,WVDEP
1-Naphthylamine
VELAP,PADEP,NCDEQ,WVDEP
2,3,4,6-Tetrachlorophenol
VELAP,PADEP,NCDEQ,WVDEP
2,4,5-Trichlorophenol
VELAP,PADEP,NCDEQ,WVDEP
2,4,6-Trichlorophenol
VELAP,PADEP,NCDEQ,WVDEP
2,4-Dichlorophenol
VELAP,PADEP,NCDEQ,WVDEP
2,4-Di methyl phenol
VELAP,PADEP,NCDEQ,WVDEP
2,4-Dinitrophenol
VELAP,PADEP,NCDEQ,WVDEP
2,4-Dinitrotoluene
VELAP,PADEP,NCDEQ,WVDEP
2,6-Dichlorophenol
VELAP,PADEP,NCDEQ,WVDEP
2,6-Dinitrotoluene
VELAP,PADEP,NCDEQ,WVDEP
2-Chloronaphthalene
VELAP,PADEP,NCDEQ,WVDEP
2-Chlorophenol
VELAP,PADEP,NCDEQ,WVDEP
2-Methyl naphthalene
VELAP,PADEP,NCDEQ,WVDEP
2-Naphthylamine
VELAP,PADEP,NCDEQ,WVDEP
2-Nitroaniline
VELAP,PADEP,NCDEQ,WVDEP
2-Nitrophenol
VELAP,PADEP,NCDEQ,WVDEP
3,3'-Dichlorobenzidine
VELAP,PADEP,NCDEQ,WVDEP
3-Methyl cholanth rene
VELAP,PADEP,NCDEQ,WVDEP
3-Nitroaniline
VELAP,PADEP,NCDEQ,WVDEP
4,6-Dinitro-2-methylphenol
VELAP,PADEP,NCDEQ,WVDEP
4-Aminobiphenyl
VELAP,PADEP,NCDEQ,WVDEP
4-Bromophenyl phenyl ether
VELAP,PADEP,NCDEQ,WVDEP
4-Chloroaniline
VELAP,PADEP,NCDEQ,WVDEP
4-Chlorophenyl phenyl ether
VELAP,PADEP,NCDEQ,WVDEP
4-Nitroaniline
VELAP,PADEP,NCDEQ,WVDEP
4-Nitrophenol
VELAP,PADEP,NCDEQ,WVDEP
7,12-Dimethylbenz (a) anthracene
VELAP,PADEP,NCDEQ,WVDEP
Page 86 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Certified Analyses included in this Report
Analyte Certifications
Acenaphthene
VELAP,PADEP,NCDEQ,WVDEP
Acenaphthylene
VELAP,PADEP,NCDEQ,WVDEP
Acetophenone
VELAP,PADEP,NCDEQ,WVDEP
Aniline
VELAP,PADEP,NCDEQ,WVDEP
Anthracene
VELAP,PADEP,NCDEQ,WVDEP
Benzidine
VELAP,PADEP,NCDEQ,WVDEP
Benzo (a) anthracene
VELAP,PADEP,NCDEQ,WVDEP
Benzo (a) pyrene
VELAP,PADEP,NCDEQ,WVDEP
Benzo (b) fluoranthene
VELAP,PADEP,NCDEQ,WVDEP
Benzo (g,h,i) perylene
VELAP,PADEP,NCDEQ,WVDEP
Benzo (k) fluoranthene
VELAP,PADEP,NCDEQ,WVDEP
Benzoic acid
VELAP,PADEP,NCDEQ,WVDEP
Benzyl alcohol
VELAP,PADEP,NCDEQ,WVDEP
bis (2-Chloroethoxy) methane
VELAP,PADEP,NCDEQ,WVDEP
bis (2-Chloroethyl) ether
VELAP,PADEP,NCDEQ,WVDEP
2,2'-Oxybis (1-chloropropane)
VELAP,PADEP,NCDEQ,WVDEP
bis (2-Ethylhexyl) phthalate
VELAP,PADEP,NCDEQ,WVDEP
Butyl benzyl phthalate
VELAP,PADEP,NCDEQ,WVDEP
Chrysene
VELAP,PADEP,NCDEQ,WVDEP
Dibenz (a,h) anthracene
VELAP,PADEP,NCDEQ,WVDEP
Dibenz (aJ) acridine
VELAP,PADEP,NCDEQ,WVDEP
Dibenzofuran
VELAP,PADEP,NCDEQ,WVDEP
Diethyl phthalate
VELAP,PADEP,NCDEQ,WVDEP
Dimethyl phthalate
VELAP,PADEP,NCDEQ,WVDEP
Di-n-butyl phthalate
VELAP,PADEP,NCDEQ,WVDEP
Di-n-octyl phthalate
VELAP,NCDEQ,WVDEP
Diphenylamine
VELAP,PADEP,NCDEQ,WVDEP
Ethyl methanesulfonate
VELAP,PADEP,NCDEQ,WVDEP
Fluoranthene
VELAP,PADEP,NCDEQ,WVDEP
Fluorene
VELAP,PADEP,NCDEQ,WVDEP
Hexachlorobenzene
VELAP,PADEP,NCDEQ,WVDEP
Hexachlorobutadiene
VELAP,PADEP,NCDEQ,WVDEP
Hexachlorocyclopentadiene
VELAP,PADEP,NCDEQ,WVDEP
Hexachloroethane
VELAP,PADEP,NCDEQ,WVDEP
Indeno (1,2,3-cd) pyrene
VELAP,PADEP,NCDEQ,WVDEP
Isophorone
VELAP,PADEP,NCDEQ,WVDEP
m+p-Cresols
VELAP,PADEP,NCDEQ,WVDEP
Methyl methanesulfonate
VELAP,PADEP,NCDEQ,WVDEP
Page 87 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name:
S&ME - Raleigh
Date Issued:
August 11, 2022 14:28
3201 Spring Forest Road
Project Number:
[none]
Purchase Order:
Raleigh NC, 27616
Submitted To:
Sam Watts
Client Site I.D.:
Welcome Ventures
Certified Analyses
included in this Report
Analyte
Certifications
Naphthalene
VELAP,PADEP,NCDEQ,WVDEP
Nitrobenzene
VELAP,PADEP,NCDEQ,WVDEP
n-Nitrosodimethylamine
VELAP,PADEP,NCDEQ,WVDEP
n-Nitrosodi-n-butylamine
VELAP,PADEP,NCDEQ,WVDEP
n-Nitrosodi-n-propylamine
VELAP,PADEP,NCDEQ,WVDEP
n-Nitrosodiphenylamine
VELAP,PADEP,NCDEQ,WVDEP
n-Nitrosopiperidine
VELAP,PADEP,NCDEQ,WVDEP
o+m+p-Cresols
VELAP,PADEP,NCDEQ,WVDEP
o-Cresol
VELAP,PADEP,NCDEQ,WVDEP
p-(Dimethylamino) azobenzene
VELAP,NCDEQ,WVDEP
p-Chloro-m-cresol
VELAP,PADEP,NCDEQ,WVDEP
Pentachloronitrobenzene (quintozene)
NCDEQ,WVDEP
Pentachlorophenol
VELAP,PADEP,NCDEQ,WVDEP
Phenacetin
VELAP,PADEP,NCDEQ,WVDEP
Phenanthrene
VELAP,PADEP,NCDEQ,WVDEP
Phenol
VELAP,PADEP,NCDEQ,WVDEP
Pronamide
VELAP,PADEP,NCDEQ,WVDEP
Pyrene
VELAP,PADEP,NCDEQ,WVDEP
Pyridine
VELAP,PADEP,NCDEQ,WVDEP
Code
Description
Laboratory ID
Expires
MdDOE
Maryland DE Drinking Water
341
12/31/2022
NCDEQ
North Carolina DEQ
495
12/31/2022
NYDOH
New York DOH Drinking Water
12096
04/01/2023
PADEP
NELAP-Pennsylvania Certificate #007 68-03503
10/31/2022
VELAP
NELAP-Virginia Certificate #11900
460021
06/14/2023
WVDEP
West Virginia DEP
350
11/30/2022
Page 88 of 92

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Summary of Data Qualifiers
C Continuing calibration verification response for this analyte is outside specifications.
L LCS recovery is outside of established acceptance limits
M Matrix spike recovery is outside established acceptance limits
P Duplicate analysis does not meet the acceptance criteria for precision
S Surrogate recovery was outside acceptance criteria
RPD Relative Percent Difference
Qual Qualifers
-RE Denotes sample was re -analyzed
D.F. Dilution Factor. Please also see the Preparation Factor in the Analysis Summary section.
TIC Tentatively Identified Compounds are compounds that are identified by comparing the analyte mass spectral pattern with the NIST spectral
library. A TIC spectral match is reported when the pattern is at least 75% consistent with the published pattern. Compound concentrations
are estimated and are calculated using an internal standard response factor of 1.
PCBs, Total Total PCBs are defined as the sum of detected Aroclors 1016, 1221, 1232, 1248, 1254, 1260, 1262, and 1268
Page 89 of 92

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i Page 91 of 92 1

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
DRAFT REPORT
Client Name: S&ME - Raleigh Date Issued: August 11, 2022 14:28
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Samale Conditions Checklist
Samples Received at: 22.60°C
How were samples received? FedEx Express
Were Custody Seals used? If so, were they received intact? No
Are the custody papers filled out completely and correctly? No
Do all bottle labels agree with custody papers? Yes
Is the temperature blank or representative sample within acceptable limits or received on ice, and recently taken? No
Are all samples within holding time for requested laboratory tests?
Yes
Is a sufficient amount of sample provided to perform the tests included?
Yes
Are all samples in appropriate containers for the analyses requested?
Yes
Were volatile organic containers received?
No
Are all volatile organic and TOX containers free of headspace?
NA
Is a trip blank provided for each VOC sample set? VOC sample sets include EPA8011 , EPA504, EPA8260, EPA624,
NA
EPA8015 GRO, EPA8021, EPA524, and RSK-175.
Are all samples received appropriately preserved? Note that metals containers do not require field preservation but lab Yes
preservation may delay analysis.
Work Order Comments
Work order logged per scheduled analyses and email from Sam Watts. SE 8/5/22
Page 92 of 92

yENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23237 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Laboratory Order ID 22HO122
Client Name: S&ME - Raleigh Date Received: August 1, 2022 10:07
3201 Spring Forest Road Date Issued: October 21, 2022 14:27
Raleigh, NC 27616 Project Number: [none]
Submitted To: Sam Watts Purchase Order:
Client Site I.D.: Welcome Ventures
Enclosed are the results of analyses for samples received by the laboratory on 08/01/2022 10:07. If you have
any questions concerning this report, please feel free to contact the laboratory.
Sincerely,
re- 5-- . -5
Ted Soyars
Technical Director
End Notes:
The test results listed in this report relate only to the samples submitted to the laboratory and as received by the Laboratory.
Unless otherwise noted, the test results for solid materials are calculated on a wet weight basis. Analyses for pH, dissolved oxygen,
temperature, residual chlorine and sulfite that are performed in the laboratory do not meet NELAC requirements due to extremely
short holding times. These analyses should be performed in the field. The results of field analyses performed by the Sampler
included in the Certificate of Analysis are done so at the client's request and are not included in the laboratory's fields of certification
nor have they been audited for adherence to a reference method or procedure.
The signature on the final report certifies that these results conform to all applicable NELAC standards unless otherwise specified.
For a complete list of the Laboratory's NELAC certified parameters please contact customer service.
This report shall not be reproduced except in full without the expressed and written approval of an authorized representative of
Enthalpy Analytical.
�pQ p«FO
2e'
'49
TNI Accredited
VELAP ID 460021
Page 1 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
ANALYTICAL REPORT FOR SAMPLES
Laboratory Order ID 22HO122
Sample ID
Laboratory ID
Matrix
Date Sampled
Date Received
ET-N-1
22HO122-01
Soil
07/27/202215:00
08/01/202210:07
ET-S-1
22HO122-02
Soil
07/27/202213:40
08/01/202210:07
ET-E-1
22HO122-03
Soil
07/27/202214:05
08/01/202210:07
ET-W-1
22HO122-04
Soil
07/27/202214:30
08/01/202210:07
ET-B-1
22HO122-05
Soil
07/27/202214:45
08/01/202210:07
ET-DUP
22HO122-16
Soil
07/27/2022 00:00
08/01/2022 10:07
Analysis for PCB Congeners was subcontracted to Vista. The subcontracted results are attached at the end of this Certificate
of Analysis.
Page 2 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-N-1
Grab Date/Time:
Field Residual Cl:
07/27/2022 15:00
Laboratory Sample ID: 22HO122-01
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual Limit
D.F.
Date/Time
Date/Time
Analyst
Volatile Organic Compounds by GCMS
1,1,1,2-Tetrachloroethane
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
1,1,1-Trichloroethane
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
1,1,2,2-Tetrachloroethane
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
1,1,2-Trichloroethane
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
1,1-Dichloroethane
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
1,1-Dichloroethylene
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
1,1-Dichloropropene
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
1,2,3-Trichlorobenzene
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
1,2,3-Trichloropropane
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
1,2,4-Trichlorobenzene
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
1,2,4-Trimethyl benzene
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
1,2-Dibromo-3-chloropropane
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
(DBCP)
1,2-Dibromoethane (EDB)
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
1,2-Dichlorobenzene
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
1,2-Dichloroethane
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
1,2-Dichloropropane
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
1,3,5-Trimethylbenzene
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
1,3-Dichlorobenzene
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
1,3-Dichloropropane
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
1,4-Dichlorobenzene
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
2,2-Dichloropropane
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
2-Butanone (MEK)
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
2-Chlorotoluene
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
2-Hexanone (MBK)
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
4-Chlorotoluene
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
Page 3 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-N-1
Grab Date/Time:
Field Residual Cl:
07/27/2022 15:00
Laboratory Sample ID: 22HO122-01
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual Limit
D.F.
Date/Time
Date/Time
Analyst
Volatile Organic Compounds by GCMS
4-Isopropyltoluene
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
4-Methyl-2-pentanone (MIBK)
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
Acetone
01
SW8260D
132 ug/kg dry
10.9
1
08/03/22 18:20
08/03/22 18:20
RJB
Benzene
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
Bromobenzene
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
Bromochloromethane
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
Bromodichloromethane
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
Bromoform
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
Bromomethane
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
Carbon disulfide
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
Carbon tetrachloride
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
Chlorobenzene
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
Chloroethane
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
Chloroform
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
Chloromethane
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
cis- 1,2-Dichloroethylene
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
cis- 1,3-Dichloropropene
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
Dibromochloromethane
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
Dibromomethane
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
Dichlorodifluoromethane
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
Di -isopropyl ether (DIPE)
01
SW8260D
<5.45 ug/kg dry
C 5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
Ethylbenzene
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
Hexachlorobutadiene
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
Iodomethane
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
Isopropyl benzene
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
m+p-Xylenes
01
SW8260D
<5.45 ug/kg dry
5.45
1
08/03/22 18:20
08/03/22 18:20
RJB
Page 4 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-N-1
Grab Date/Time: 07/27/2022 15:00
Laboratory Sample ID: 22HO122-01
Field Residual Cl: Field pH:
Reporting Sample Prep Analysis
Parameter Samp ID Method Result Qual Limit D.F. Date/Time Date/Time Analyst
Volatile Organic Compounds by GCMS
Methylene chloride
01
SW8260D
<5.45 ug/kg dry
5.45
1 08/03/22 18:20
08/03/22 18:20
RJB
Methyl-t-butyl ether (MTBE)
01
SW8260D
<5.45 ug/kg dry
5.45
1 08/03/22 18:20
08/03/22 18:20
RJB
Naphthalene
01
SW8260D
<5.45 ug/kg dry
5.45
1 08/03/22 18:20
08/03/22 18:20
RJB
n-Butylbenzene
01
SW8260D
<5.45 ug/kg dry
5.45
1 08/03/22 18:20
08/03/22 18:20
RJB
n-Propylbenzene
01
SW8260D
<5.45 ug/kg dry
5.45
1 08/03/22 18:20
08/03/22 18:20
RJB
o-Xylene
01
SW8260D
<5.45 ug/kg dry
5.45
1 08/03/22 18:20
08/03/22 18:20
RJB
sec- Butylbenzene
01
SW8260D
<5.45 ug/kg dry
5.45
1 08/03/22 18:20
08/03/22 18:20
RJB
Styrene
01
SW8260D
<5.45 ug/kg dry
5.45
1 08/03/22 18:20
08/03/22 18:20
RJB
tert-Butyl benzene
01
SW8260D
<5.45 ug/kg dry
5.45
1 08/03/22 18:20
08/03/22 18:20
RJB
Tetrachloroethylene (PCE)
01
SW8260D
<5.45 ug/kg dry
5.45
1 08/03/22 18:20
08/03/22 18:20
RJB
Toluene
01
SW8260D
<5.45 ug/kg dry
5.45
1 08/03/22 18:20
08/03/22 18:20
RJB
trans-1,2-Dichloroethylene
01
SW8260D
<5.45 ug/kg dry
5.45
1 08/03/22 18:20
08/03/22 18:20
RJB
trans-1,3-Dichloropropene
01
SW8260D
<5.45 ug/kg dry
5.45
1 08/03/22 18:20
08/03/22 18:20
RJB
Trichloroethylene
01
SW8260D
<5.45 ug/kg dry
5.45
1 08/03/22 18:20
08/03/22 18:20
RJB
Trichlorofluoromethane
01
SW8260D
<5.45 ug/kg dry
5.45
1 08/03/22 18:20
08/03/22 18:20
RJB
Vinyl acetate
01
SW8260D
<10.9 ug/kg dry
10.9
1 08/03/22 18:20
08/03/22 18:20
RJB
Vinyl chloride
01
SW8260D
<5.45 ug/kg dry
5.45
1 08/03/22 18:20
08/03/22 18:20
RJB
Xylenes, Total
01
SW8260D
<16.3 ug/kg dry
16.3
1 08/03/22 18:20
08/03/22 18:20
RJB
- - - - - - - - - - - -
Surr: 1,2-Dichloroethane-d4
- - - -
01
- - - - - - -
SW8260D
- - - - - - - - - -
120 %
- - - - - - - -
S 80-120
- - - - - - - - -
08/03/22 18:20
- - - - - - -
08/03/22 18:20
- - -
RJB
(Surr)
Surr: 4-Bromofluorobenzene
01
SW8260D
94.2 %
85-120
08103122 18:20
08103122 18:20
RJB
(Surr)
Surr: Dibromofluoromethane
01
SW8260D
102 %
80-130
08/03/22 18:20
08/03/22 18:20
RJB
(Surr)
Surr.- Toluene-d8 (Surr)
01
SW8260D
101 %
85-115
08/03/22 18:20
08/03/22 18:20
RJB
Semivolatile Organic Compounds by GCMS
Page 5 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-N-1
Grab Date/Time:
Field Residual Cl:
07/27/2022 15:00
Laboratory Sample ID: 22HO122-01
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual Limit
D.F.
Date/Time
Date/Time
Analyst
Semivolatile Organic Compounds by GCMS
1,2,4,5-Tetrachlorobenzene
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
1,2,4-Trichlorobenzene
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
1,2-Dichlorobenzene
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
1,2-Diphenylhydrazine
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
1,3-Dichlorobenzene
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
1,4-Dichlorobenzene
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
1-Chloronaphthalene
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
1-Naphthylamine
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
2,3,4,6-Tetrachlorophenol
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
2,4,5-Trichlorophenol
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
2,4,6-Trichlorophenol
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
2,4-Dichlorophenol
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
2,4-Dimethylphenol
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
2,4-Dinitrophenol
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
2,4-Dinitrotoluene
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
2,6-Dichlorophenol
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
2,6-Dinitrotoluene
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
2-Chloronaphthalene
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
2-Chlorophenol
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
2-Methylnaphthalene
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
2-Naphthylamine
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
2-Nitroaniline
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
2-Nitrophenol
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
3,3'-Dichlorobenzidine
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
3-Methylcholanthrene
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
3-Nitroaniline
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Page 6 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-N-1
Grab Date/Time:
Field Residual Cl:
07/27/2022 15:00
Laboratory Sample ID: 22HO122-01
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual Limit
D.F.
Date/Time
Date/Time
Analyst
Semivolatile Organic Compounds by GCMS
4,6-Dinitro-2-methylphenol
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
4-Aminobiphenyl
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
4-Bromophenyl phenyl ether
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
4-Chloroaniline
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
4-Chlorophenyl phenyl ether
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
4-Nitroaniline
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
4-Nitrophenol
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
7,12-Dimethylbenz (a)
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
anthracene
Acenaphthene
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Acenaphthylene
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Acetophenone
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Aniline
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Anthracene
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Benzidine
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Benzo (a) anthracene
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Benzo (a) pyrene
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Benzo (b) fluoranthene
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Benzo (g,h,i) perylene
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Benzo (k) fluoranthene
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Benzoic acid
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Benzyl alcohol
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
bis (2-Chloroethoxy) methane
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
bis (2-Chloroethyl) ether
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
2,2'-Oxybis (1-chloropropane)
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
bis (2-Ethylhexyl) phthalate
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Page 7 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-N-1
Grab Date/Time:
Field Residual Cl:
07/27/2022 15:00
Laboratory Sample ID: 22HO122-01
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual Limit
D.F.
Date/Time
Date/Time
Analyst
Semivolatile Organic Compounds by GCMS
Butyl benzyl phthalate
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Chrysene
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Dibenz (a,h) anthracene
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Dibenz (a,j) acridine
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Dibenzofuran
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Diethyl phthalate
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Dimethyl phthalate
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Di-n-butyl phthalate
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Di-n-octyl phthalate
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Diphenylamine
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Ethyl methanesulfonate
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Fluoranthene
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Fluorene
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Hexachlorobenzene
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Hexachlorobutadiene
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Hexachlorocyclopentadiene
01
SW8270E
<102 ug/kg dry
C 102
1
08/03/22 12:15
08/04/22 20:23
MGG
Hexachloroethane
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Indeno (1,2,3-cd) pyrene
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Isophorone
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
m+p-Cresols
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Methyl methanesulfonate
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Naphthalene
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Nitrobenzene
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
n-Nitrosodimethylamine
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
n-Nitrosodi-n-butylamine
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
n-Nitrosodi-n-propylamine
01
SW8270E
<102 ug/kg dry
102
1
08/03/22 12:15
08/04/22 20:23
MGG
Page 8 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-N-1
Grab Date/Time: 07/27/2022 15:00
Laboratory Sample ID: 22HO122-01
Field Residual Cl: Field pH:
Reporting Sample Prep Analysis
Parameter Samp ID Method Result Qual Limit D.F. Date/Time Date/Time Analyst
Semivolatile Organic Compounds by GCMS
n-Nitrosodiphenylamine
01
SW8270E
<102 ug/kg dry
102
1 08/03/22 12:15
08/04/22 20:23
MGG
n-Nitrosopiperidine
01
SW8270E
<102 ug/kg dry
102
1 08/03/22 12:15
08/04/22 20:23
MGG
o+m+p-Cresols
01
SW8270E
<102 ug/kg dry
102
1 08/03/22 12:15
08/04/22 20:23
MGG
o-Cresol
01
SW8270E
<102 ug/kg dry
102
1 08/03/22 12:15
08/04/22 20:23
MGG
p-(Dimethylamino)
01
SW8270E
<102 ug/kg dry
102
1 08/03/22 12:15
08/04/22 20:23
MGG
azobenzene
p-Chloro-m-cresol
01
SW8270E
<102 ug/kg dry
102
1 08/03/22 12:15
08/04/22 20:23
MGG
Pentachloronitrobenzene
01
SW8270E
<102 ug/kg dry
102
1 08/03/22 12:15
08/04/22 20:23
MGG
(quintozene)
Pentachlorophenol
01
SW8270E
<102 ug/kg dry
102
1 08/03/22 12:15
08/04/22 20:23
MGG
Phenacetin
01
SW8270E
<102 ug/kg dry
102
1 08/03/22 12:15
08/04/22 20:23
MGG
Phenanthrene
01
SW8270E
<102 ug/kg dry
102
1 08/03/22 12:15
08/04/22 20:23
MGG
Phenol
01
SW8270E
<102 ug/kg dry
102
1 08/03/22 12:15
08/04/22 20:23
MGG
Pronamide
01
SW8270E
<102 ug/kg dry
102
1 08/03/22 12:15
08/04/22 20:23
MGG
Pyrene
01
SW8270E
<102 ug/kg dry
102
1 08/03/22 12:15
08/04/22 20:23
MGG
Pyridine
01
SW8270E
<102 ug/kg dry
102
1 08/03/22 12:15
08/04/22 20:23
MGG
- - - - - - - - - - - -
Surr.- 2,4,6-Tribromophenol
- - - -
01
- - - - - - -
SW8270E
- - - - - - - - - - -
66.2 %
- - - - - -
15-96
- - - - - - - - -
08/03/22 12:15
- - - - - - -
08/04/22 20:23
- - -
MGG
(Surr)
Surr.- 2-Fluorobiphenyl (Surr)
01
SW8270E
70.4 %
19-105
08/03/22 12:15
08104122 20:23
MGG
Surr: 2-Fluorophenol (Surr)
01
SW8270E
53.3 %
12-95
08/03/22 12:15
08/04/22 20:23
MGG
Surr: Nitrobenzene-d5 (Surr)
01
SW8270E
65.3 %
21-100
08103122 12:15
08104122 20:23
MGG
Surr.- Phenol-d5 (Surr)
01
SW8270E
65.6 %
13-100
08/03/22 12:15
08104122 20:23
MGG
Surr: p-Terphenyl-d14 (Surr)
01
SW8270E
59.9 %
25-125
08/03/22 12:15
08/04/22 20:23
MGG
Organochlorine Pesticides and PCBs by GC/ECD
PCB as Aroclor 1016
01
SW8082A
<0.131 mg/kg dry
0.131
1 08/08/22 09:40
08/09/22 13:24
LBH2
PCB as Aroclor 1221
01
SW8082A
<0.131 mg/kg dry
0.131
1 08/08/22 09:40
08/09/22 13:24
LBH2
Page 9 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Analytical Results
Sample I.D. ET-N-1
Grab Date/Time:
Field Residual Cl:
Laboratory Order ID: 22HO122
07/27/2022 15:00
Laboratory Sample ID: 22HO122-01
Field pH:
Reporting Sample Prep Analysis
Parameter Samp ID Method Result Qual Limit D.F. Date/Time Date/Time Analyst
Organochlorine Pesticides and PCBs by GC/ECD
PCB as Aroclor 1232
01
SW8082A
<0.131 mg/kg dry
0.131
1 08/08/22 09:40
08/09/22 13:24
LBH2
PCB as Aroclor 1242
01
SW8082A
<0.131 mg/kg dry
0.131
1 08/08/22 09:40
08/09/22 13:24
LBH2
PCB as Aroclor 1248
01
SW8082A
<0.131 mg/kg dry
0.131
1 08/08/22 09:40
08/09/22 13:24
LBH2
PCB as Aroclor 1254
01
SW8082A
<0.131 mg/kg dry
0.131
1 08/08/22 09:40
08/09/22 13:24
LBH2
PCB as Aroclor 1260
01
SW8082A
<0.131 mg/kg dry
0.131
1 08/08/22 09:40
08/09/22 13:24
LBH2
- - - - - - - - - - - -
Surr: DCB
- - - -
01
- - - - - - -
SW8082A
- - - - - - - - - - - -
82.3 %
- - - - - -
30-105
- - - - - - - - -
08/08/22 09:40
- - - - - - -
08/09/22 13:24
- - -
LBH2
Surr: TCMX
01
SW8082A
53.5 %
30-105
08/08/22 09:40
08/09/22 13:24
LBH2
Wet Chemistry Analysis
Percent Solids
01
SM22
75.4 %
0.10
1 08/04/22 10:02
08/04/22 10:02
MAH
2540G-2011
Page 10 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-S-1
Grab Date/Time:
Field Residual Cl:
07/27/2022 13:40
Laboratory Sample ID: 22HO122-02
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual Limit
D.F.
Date/Time
Date/Time
Analyst
Volatile Organic Compounds by GCMS
1,1,1,2-Tetrachloroethane
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
1,1,1-Trichloroethane
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
1,1,2,2-Tetrachloroethane
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
1,1,2-Trichloroethane
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
1,1-Dichloroethane
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
1,1-Dichloroethylene
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
1,1-Dichloropropene
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
1,2,3-Trichlorobenzene
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
1,2,3-Trichloropropane
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
1,2,4-Trichlorobenzene
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
1,2,4-Trimethyl benzene
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
1,2-Dibromo-3-chloropropane
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
(DBCP)
1,2-Dibromoethane (EDB)
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
1,2-Dichlorobenzene
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
1,2-Dichloroethane
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
1,2-Dichloropropane
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
1,3,5-Trimethylbenzene
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
1,3-Dichlorobenzene
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
1,3-Dichloropropane
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
1,4-Dichlorobenzene
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
2,2-Dichloropropane
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
2-Butanone (MEK)
02
SW8260D
9.06 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
2-Chlorotoluene
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
2-Hexanone (MBK)
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
4-Chlorotoluene
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
Page 11 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-S-1
Grab Date/Time:
Field Residual Cl:
07/27/2022 13:40
Laboratory Sample ID: 22HO122-02
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual Limit
D.F.
Date/Time
Date/Time
Analyst
Volatile Organic Compounds by GCMS
4-Isopropyltoluene
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
4-Methyl-2-pentanone (MIBK)
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
Acetone
02
SW8260D
347 ug/kg dry
11.6
1
08/03/22 18:46
08/03/22 18:46
RJB
Benzene
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
Bromobenzene
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
Bromochloromethane
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
Bromodichloromethane
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
Bromoform
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
Bromomethane
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
Carbon disulfide
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
Carbon tetrachloride
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
Chlorobenzene
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
Chloroethane
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
Chloroform
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
Chloromethane
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
cis- 1,2-Dichloroethylene
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
cis- 1,3-Dichloropropene
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
Dibromochloromethane
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
Dibromomethane
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
Dichlorodifluoromethane
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
Di -isopropyl ether (DIPE)
02
SW8260D
<5.78 ug/kg dry
C 5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
Ethylbenzene
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
Hexachlorobutadiene
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
Iodomethane
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
Isopropyl benzene
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
m+p-Xylenes
02
SW8260D
<5.78 ug/kg dry
5.78
1
08/03/22 18:46
08/03/22 18:46
RJB
Page 12 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-S-1
Grab Date/Time: 07/27/2022 13:40
Laboratory Sample ID: 22HO122-02
Field Residual Cl: Field pH:
Reporting Sample Prep Analysis
Parameter Samp ID Method Result Qual Limit D.F. Date/Time Date/Time Analyst
Volatile Organic Compounds by GCMS
Methylene chloride
02
SW8260D
<5.78 ug/kg dry
5.78
1 08/03/22 18:46
08/03/22 18:46
RJB
Methyl-t-butyl ether (MTBE)
02
SW8260D
<5.78 ug/kg dry
5.78
1 08/03/22 18:46
08/03/22 18:46
RJB
Naphthalene
02
SW8260D
<5.78 ug/kg dry
5.78
1 08/03/22 18:46
08/03/22 18:46
RJB
n-Butylbenzene
02
SW8260D
<5.78 ug/kg dry
5.78
1 08/03/22 18:46
08/03/22 18:46
RJB
n-Propylbenzene
02
SW8260D
<5.78 ug/kg dry
5.78
1 08/03/22 18:46
08/03/22 18:46
RJB
o-Xylene
02
SW8260D
<5.78 ug/kg dry
5.78
1 08/03/22 18:46
08/03/22 18:46
RJB
sec- Butylbenzene
02
SW8260D
<5.78 ug/kg dry
5.78
1 08/03/22 18:46
08/03/22 18:46
RJB
Styrene
02
SW8260D
<5.78 ug/kg dry
5.78
1 08/03/22 18:46
08/03/22 18:46
RJB
tert-Butyl benzene
02
SW8260D
<5.78 ug/kg dry
5.78
1 08/03/22 18:46
08/03/22 18:46
RJB
Tetrachloroethylene (PCE)
02
SW8260D
<5.78 ug/kg dry
5.78
1 08/03/22 18:46
08/03/22 18:46
RJB
Toluene
02
SW8260D
<5.78 ug/kg dry
5.78
1 08/03/22 18:46
08/03/22 18:46
RJB
trans-1,2-Dichloroethylene
02
SW8260D
<5.78 ug/kg dry
5.78
1 08/03/22 18:46
08/03/22 18:46
RJB
trans-1,3-Dichloropropene
02
SW8260D
<5.78 ug/kg dry
5.78
1 08/03/22 18:46
08/03/22 18:46
RJB
Trichloroethylene
02
SW8260D
<5.78 ug/kg dry
5.78
1 08/03/22 18:46
08/03/22 18:46
RJB
Trichlorofluoromethane
02
SW8260D
<5.78 ug/kg dry
5.78
1 08/03/22 18:46
08/03/22 18:46
RJB
Vinyl acetate
02
SW8260D
<11.6 ug/kg dry
11.6
1 08/03/22 18:46
08/03/22 18:46
RJB
Vinyl chloride
02
SW8260D
<5.78 ug/kg dry
5.78
1 08/03/22 18:46
08/03/22 18:46
RJB
Xylenes, Total
02
SW8260D
<17.3 ug/kg dry
17.3
1 08/03/22 18:46
08/03/22 18:46
RJB
- - - - - - - - - - - -
Surr: 1,2-Dichloroethane-d4
- - - -
02
- - - - - - -
SW8260D
- - - - - - - - - -
122 %
- - - - - - - -
S 80-120
- - - - - - - - -
08/03/22 18:46
- - - - - - -
08/03/22 18:46
- - -
RJB
(Surr)
Surr: 4-Bromofluorobenzene
02
SW8260D
91.9 %
85-120
08103122 18:46
08103122 18:46
RJB
(Surr)
Surr: Dibromofluoromethane
02
SW8260D
102 %
80-130
08/03/22 18:46
08/03/22 18:46
RJB
(Surr)
Surr.- Toluene-d8 (Surr)
02
SW8260D
103 %
85-115
08/03/22 18:46
08/03/22 18:46
RJB
Semivolatile Organic Compounds by GCMS
Page 13 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-S-1
Grab Date/Time:
Field Residual Cl:
07/27/2022 13:40
Laboratory Sample ID: 22HO122-02
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual Limit
D.F.
Date/Time
Date/Time
Analyst
Semivolatile Organic Compounds by GCMS
1,2,4,5-Tetrachlorobenzene
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
1,2,4-Trichlorobenzene
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
1,2-Dichlorobenzene
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
1,2-Diphenylhydrazine
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
1,3-Dichlorobenzene
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
1,4-Dichlorobenzene
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
1-Chloronaphthalene
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
1-Naphthylamine
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
2,3,4,6-Tetrachlorophenol
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
2,4,5-Trichlorophenol
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
2,4,6-Trichlorophenol
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
2,4-Dichlorophenol
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
2,4-Dimethylphenol
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
2,4-Dinitrophenol
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
2,4-Dinitrotoluene
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
2,6-Dichlorophenol
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
2,6-Dinitrotoluene
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
2-Chloronaphthalene
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
2-Chlorophenol
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
2-Methylnaphthalene
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
2-Naphthylamine
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
2-Nitroaniline
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
2-Nitrophenol
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
3,3'-Dichlorobenzidine
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
3-Methylcholanthrene
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
3-Nitroaniline
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Page 14 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-S-1
Grab Date/Time:
Field Residual Cl:
07/27/2022 13:40
Laboratory Sample ID: 22HO122-02
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual Limit
D.F.
Date/Time
Date/Time
Analyst
Semivolatile Organic Compounds by GCMS
4,6-Dinitro-2-methylphenol
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
4-Aminobiphenyl
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
4-Bromophenyl phenyl ether
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
4-Chloroaniline
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
4-Chlorophenyl phenyl ether
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
4-Nitroaniline
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
4-Nitrophenol
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
7,12-Dimethylbenz (a)
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
anthracene
Acenaphthene
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Acenaphthylene
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Acetophenone
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Aniline
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Anthracene
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Benzidine
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Benzo (a) anthracene
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Benzo (a) pyrene
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Benzo (b) fluoranthene
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Benzo (g,h,i) perylene
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Benzo (k) fluoranthene
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Benzoic acid
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Benzyl alcohol
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
bis (2-Chloroethoxy) methane
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
bis (2-Chloroethyl) ether
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
2,2'-Oxybis (1-chloropropane)
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
bis (2-Ethylhexyl) phthalate
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Page 15 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-S-1
Grab Date/Time:
Field Residual Cl:
07/27/2022 13:40
Laboratory Sample ID: 22HO122-02
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual Limit
D.F.
Date/Time
Date/Time
Analyst
Semivolatile Organic Compounds by GCMS
Butyl benzyl phthalate
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Chrysene
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Dibenz (a,h) anthracene
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Dibenz (a,j) acridine
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Dibenzofuran
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Diethyl phthalate
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Dimethyl phthalate
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Di-n-butyl phthalate
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Di-n-octyl phthalate
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Diphenylamine
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Ethyl methanesulfonate
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Fluoranthene
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Fluorene
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Hexachlorobenzene
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Hexachlorobutadiene
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Hexachlorocyclopentadiene
02
SW8270E
<96.2 ug/kg dry
C 96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Hexachloroethane
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Indeno (1,2,3-cd) pyrene
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Isophorone
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
m+p-Cresols
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Methyl methanesulfonate
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Naphthalene
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Nitrobenzene
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
n-Nitrosodimethylamine
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
n-Nitrosodi-n-butylamine
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
n-Nitrosodi-n-propylamine
02
SW8270E
<96.2 ug/kg dry
96.2
1
08/03/22 12:15
08/04/22 20:58
MGG
Page 16 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-S-1
Grab Date/Time: 07/27/2022 13:40
Laboratory Sample ID: 22HO122-02
Field Residual Cl: Field pH:
Reporting Sample Prep Analysis
Parameter Samp ID Method Result Qual Limit D.F. Date/Time Date/Time Analyst
Semivolatile Organic Compounds by GCMS
n-Nitrosodiphenylamine
02
SW8270E
<96.2 ug/kg dry
96.2
1 08/03/22 12:15
08/04/22 20:58
MGG
n-Nitrosopiperidine
02
SW8270E
<96.2 ug/kg dry
96.2
1 08/03/22 12:15
08/04/22 20:58
MGG
o+m+p-Cresols
02
SW8270E
<96.2 ug/kg dry
96.2
1 08/03/22 12:15
08/04/22 20:58
MGG
o-Cresol
02
SW8270E
<96.2 ug/kg dry
96.2
1 08/03/22 12:15
08/04/22 20:58
MGG
p-(Dimethylamino)
02
SW8270E
<96.2 ug/kg dry
96.2
1 08/03/22 12:15
08/04/22 20:58
MGG
azobenzene
p-Chloro-m-cresol
02
SW8270E
<96.2 ug/kg dry
96.2
1 08/03/22 12:15
08/04/22 20:58
MGG
Pentachloronitrobenzene
02
SW8270E
<96.2 ug/kg dry
96.2
1 08/03/22 12:15
08/04/22 20:58
MGG
(quintozene)
Pentachlorophenol
02
SW8270E
<96.2 ug/kg dry
96.2
1 08/03/22 12:15
08/04/22 20:58
MGG
Phenacetin
02
SW8270E
<96.2 ug/kg dry
96.2
1 08/03/22 12:15
08/04/22 20:58
MGG
Phenanthrene
02
SW8270E
<96.2 ug/kg dry
96.2
1 08/03/22 12:15
08/04/22 20:58
MGG
Phenol
02
SW8270E
<96.2 ug/kg dry
96.2
1 08/03/22 12:15
08/04/22 20:58
MGG
Pronamide
02
SW8270E
<96.2 ug/kg dry
96.2
1 08/03/22 12:15
08/04/22 20:58
MGG
Pyrene
02
SW8270E
<96.2 ug/kg dry
96.2
1 08/03/22 12:15
08/04/22 20:58
MGG
Pyridine
02
SW8270E
<96.2 ug/kg dry
96.2
1 08/03/22 12:15
08/04/22 20:58
MGG
- - - - - - - - - - - -
Surr.- 2,4,6-Tribromophenol
- - - -
02
- - - - - - -
SW8270E
- - - - - - - - - - -
69.6 %
- - - - - -
15-96
- - - - - - - - -
08/03/22 12:15
- - - - - - -
08/04/22 20:58
- - -
MGG
(Surr)
Surr.- 2-Fluorobiphenyl (Surr)
02
SW8270E
71.3 %
19-105
08/03/22 12:15
08104122 20:58
MGG
Surr: 2-Fluorophenol (Surr)
02
SW8270E
50.6 %
12-95
08/03/22 12:15
08/04/22 20:58
MGG
Surr: Nitrobenzene-d5 (Surr)
02
SW8270E
64.9 %
21-100
08103122 12:15
08104122 20:58
MGG
Surr.- Phenol-d5 (Surr)
02
SW8270E
63.8 %
13-100
08/03/22 12:15
08104122 20:58
MGG
Surr: p-Terphenyl-d14 (Surr)
02
SW8270E
58.7 %
25-125
08/03/22 12:15
08/04/22 20:58
MGG
Organochlorine Pesticides and PCBs by GC/ECD
PCB as Aroclor 1016
02
SW8082A
<0.116 mg/kg dry
0.116
1 08/08/22 09:40
08/09/22 13:44
LBH2
PCB as Aroclor 1221
02
SW8082A
<0.116 mg/kg dry
0.116
1 08/08/22 09:40
08/09/22 13:44
LBH2
Page 17 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Analytical Results
Sample I.D. ET-S-1
Grab Date/Time:
Field Residual Cl:
Laboratory Order ID: 22HO122
07/27/2022 13:40
Laboratory Sample ID: 22HO122-02
Field pH:
Reporting Sample Prep Analysis
Parameter Samp ID Method Result Qual Limit D.F. Date/Time Date/Time Analyst
Organochlorine Pesticides and PCBs by GC/ECD
PCB as Aroclor 1232
02
SW8082A
<0.116 mg/kg dry
0.116
1 08/08/22 09:40
08/09/22 13:44
LBH2
PCB as Aroclor 1242
02
SW8082A
<0.116 mg/kg dry
0.116
1 08/08/22 09:40
08/09/22 13:44
LBH2
PCB as Aroclor 1248
02
SW8082A
<0.116 mg/kg dry
0.116
1 08/08/22 09:40
08/09/22 13:44
LBH2
PCB as Aroclor 1254
02
SW8082A
<0.116 mg/kg dry
0.116
1 08/08/22 09:40
08/09/22 13:44
LBH2
PCB as Aroclor 1260
02
SW8082A
<0.116 mg/kg dry
0.116
1 08/08/22 09:40
08/09/22 13:44
LBH2
- - - - - - - - - - - -
Surr: DCB
- - - -
02
- - - - - - -
SW8082A
- - - - - - - - - - - -
94.4 %
- - - - - -
30-105
- - - - - - - - -
08/08/22 09:40
- - - - - - -
08/09/22 13:44
- - -
LBH2
Surr: TCMX
02
SW8082A
73.6 %
30-105
08/08/22 09:40
08/09/22 13:44
LBH2
Wet Chemistry Analysis
Percent Solids
02
SM22
85.4 %
0.10
1 08/05/22 16:04
08/05/22 16:04
MAH
2540G-2011
Page 18 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-E-1
Grab Date/Time:
Field Residual Cl:
07/27/2022 14:05
Laboratory Sample ID: 22HO122-03
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual Limit
D.F.
Date/Time
Date/Time
Analyst
Volatile Organic Compounds by GCMS
1,1,1,2-Tetrachloroethane
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
1,1,1-Trichloroethane
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
1,1,2,2-Tetrachloroethane
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
1,1,2-Trichloroethane
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
1,1-Dichloroethane
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
1,1-Dichloroethylene
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
1,1-Dichloropropene
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
1,2,3-Trichlorobenzene
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
1,2,3-Trichloropropane
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
1,2,4-Trichlorobenzene
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
1,2,4-Trimethyl benzene
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
1,2-Dibromo-3-chloropropane
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
(DBCP)
1,2-Dibromoethane (EDB)
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
1,2-Dichlorobenzene
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
1,2-Dichloroethane
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
1,2-Dichloropropane
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
1,3,5-Trimethylbenzene
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
1,3-Dichlorobenzene
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
1,3-Dichloropropane
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
1,4-Dichlorobenzene
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
2,2-Dichloropropane
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
2-Butanone (MEK)
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
2-Chlorotoluene
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
2-Hexanone (MBK)
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
4-Chlorotoluene
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
Page 19 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-E-1
Grab Date/Time:
Field Residual Cl:
07/27/2022 14:05
Laboratory Sample ID: 22HO122-03
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual Limit
D.F.
Date/Time
Date/Time
Analyst
Volatile Organic Compounds by GCMS
4-Isopropyltoluene
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
4-Methyl-2-pentanone (MIBK)
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
Acetone
03
SW8260D
117 ug/kg dry
10.0
1
08/03/22 19:13
08/03/22 19:13
RJB
Benzene
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
Bromobenzene
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
Bromochloromethane
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
Bromodichloromethane
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
Bromoform
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
Bromomethane
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
Carbon disulfide
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
Carbon tetrachloride
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
Chlorobenzene
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
Chloroethane
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
Chloroform
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
Chloromethane
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
cis- 1,2-Dichloroethylene
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
cis- 1,3-Dichloropropene
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
Dibromochloromethane
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
Dibromomethane
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
Dichlorodifluoromethane
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
Di -isopropyl ether (DIPE)
03
SW8260D
<5.00 ug/kg dry
C 5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
Ethylbenzene
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
Hexachlorobutadiene
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
Iodomethane
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
Isopropyl benzene
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
m+p-Xylenes
03
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 19:13
08/03/22 19:13
RJB
Page 20 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-E-1
Grab Date/Time: 07/27/2022 14:05
Laboratory Sample ID: 22HO122-03
Field Residual Cl: Field pH:
Reporting Sample Prep Analysis
Parameter Samp ID Method Result Qual Limit D.F. Date/Time Date/Time Analyst
Volatile Organic Compounds by GCMS
Methylene chloride
03
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 19:13
08/03/22 19:13
RJB
Methyl-t-butyl ether (MTBE)
03
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 19:13
08/03/22 19:13
RJB
Naphthalene
03
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 19:13
08/03/22 19:13
RJB
n-Butylbenzene
03
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 19:13
08/03/22 19:13
RJB
n-Propylbenzene
03
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 19:13
08/03/22 19:13
RJB
o-Xylene
03
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 19:13
08/03/22 19:13
RJB
sec- Butylbenzene
03
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 19:13
08/03/22 19:13
RJB
Styrene
03
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 19:13
08/03/22 19:13
RJB
tert-Butyl benzene
03
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 19:13
08/03/22 19:13
RJB
Tetrachloroethylene (PCE)
03
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 19:13
08/03/22 19:13
RJB
Toluene
03
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 19:13
08/03/22 19:13
RJB
trans-1,2-Dichloroethylene
03
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 19:13
08/03/22 19:13
RJB
trans-1,3-Dichloropropene
03
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 19:13
08/03/22 19:13
RJB
Trichloroethylene
03
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 19:13
08/03/22 19:13
RJB
Trichlorofluoromethane
03
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 19:13
08/03/22 19:13
RJB
Vinyl acetate
03
SW8260D
<10.0 ug/kg dry
10.0
1 08/03/22 19:13
08/03/22 19:13
RJB
Vinyl chloride
03
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 19:13
08/03/22 19:13
RJB
Xylenes, Total
03
SW8260D
<15.0 ug/kg dry
15.0
1 08/03/22 19:13
08/03/22 19:13
RJB
- - - - - - - - - - - -
Surr: 1,2-Dichloroethane-d4
- - - -
03
- - - - - - -
SW8260D
- - - - - - - - - -
125 %
- - - - - - - -
S 80-120
- - - - - - - - -
08/03/22 19:13
- - - - - - -
08/03/22 19:13
- - -
RJB
(Surr)
Surr: 4-Bromofluorobenzene
03
SW8260D
95.8 %
85-120
08103122 19:13
08103122 19:13
RJB
(Surr)
Surr: Dibromofluoromethane
03
SW8260D
100 %
80-130
08/03/22 19:13
08/03/22 19:13
RJB
(Surr)
Surr.- Toluene-d8 (Surr)
03
SW8260D
102 %
85-115
08/03/22 19:13
08/03/22 19:13
RJB
Semivolatile Organic Compounds by GCMS
Page 21 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-E-1
Grab Date/Time:
Field Residual Cl:
07/27/2022 14:05
Laboratory Sample ID: 22HO122-03
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual Limit
D.F.
Date/Time
Date/Time
Analyst
Semivolatile Organic Compounds by GCMS
1,2,4,5-Tetrachlorobenzene
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
1,2,4-Trichlorobenzene
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
1,2-Dichlorobenzene
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
1,2-Diphenylhydrazine
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
1,3-Dichlorobenzene
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
1,4-Dichlorobenzene
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
1-Chloronaphthalene
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
1-Naphthylamine
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
2,3,4,6-Tetrachlorophenol
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
2,4,5-Trichlorophenol
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
2,4,6-Trichlorophenol
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
2,4-Dichlorophenol
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
2,4-Dimethylphenol
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
2,4-Dinitrophenol
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
2,4-Dinitrotoluene
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
2,6-Dichlorophenol
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
2,6-Dinitrotoluene
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
2-Chloronaphthalene
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
2-Chlorophenol
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
2-Methylnaphthalene
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
2-Naphthylamine
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
2-Nitroaniline
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
2-Nitrophenol
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
3,3'-Dichlorobenzidine
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
3-Methylcholanthrene
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
3-Nitroaniline
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Page 22 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-E-1
Grab Date/Time:
Field Residual Cl:
07/27/2022 14:05
Laboratory Sample ID: 22HO122-03
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual Limit
D.F.
Date/Time
Date/Time
Analyst
Semivolatile Organic Compounds by GCMS
4,6-Dinitro-2-methylphenol
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
4-Aminobiphenyl
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
4-Bromophenyl phenyl ether
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
4-Chloroaniline
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
4-Chlorophenyl phenyl ether
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
4-Nitroaniline
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
4-Nitrophenol
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
7,12-Dimethylbenz (a)
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
anthracene
Acenaphthene
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Acenaphthylene
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Acetophenone
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Aniline
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Anthracene
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Benzidine
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Benzo (a) anthracene
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Benzo (a) pyrene
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Benzo (b) fluoranthene
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Benzo (g,h,i) perylene
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Benzo (k) fluoranthene
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Benzoic acid
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Benzyl alcohol
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
bis (2-Chloroethoxy) methane
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
bis (2-Chloroethyl) ether
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
2,2'-Oxybis (1-chloropropane)
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
bis (2-Ethylhexyl) phthalate
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Page 23 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-E-1
Grab Date/Time:
Field Residual Cl:
07/27/2022 14:05
Laboratory Sample ID: 22HO122-03
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual Limit
D.F.
Date/Time
Date/Time
Analyst
Semivolatile Organic Compounds by GCMS
Butyl benzyl phthalate
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Chrysene
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Dibenz (a,h) anthracene
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Dibenz (a,j) acridine
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Dibenzofuran
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Diethyl phthalate
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Dimethyl phthalate
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Di-n-butyl phthalate
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Di-n-octyl phthalate
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Diphenylamine
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Ethyl methanesulfonate
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Fluoranthene
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Fluorene
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Hexachlorobenzene
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Hexachlorobutadiene
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Hexachlorocyclopentadiene
03
SW8270E
<91.6 ug/kg dry
C 91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Hexachloroethane
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Indeno (1,2,3-cd) pyrene
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Isophorone
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
m+p-Cresols
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Methyl methanesulfonate
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Naphthalene
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Nitrobenzene
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
n-Nitrosodimethylamine
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
n-Nitrosodi-n-butylamine
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
n-Nitrosodi-n-propylamine
03
SW8270E
<91.6 ug/kg dry
91.6
1
08/03/22 12:15
08/04/22 21:32
MGG
Page 24 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-E-1
Grab Date/Time: 07/27/2022 14:05
Laboratory Sample ID: 22HO122-03
Field Residual Cl: Field pH:
Reporting Sample Prep Analysis
Parameter Samp ID Method Result Qual Limit D.F. Date/Time Date/Time Analyst
Semivolatile Organic Compounds by GCMS
n-Nitrosodiphenylamine
03
SW8270E
<91.6 ug/kg dry
91.6
1 08/03/22 12:15
08/04/22 21:32
MGG
n-Nitrosopiperidine
03
SW8270E
<91.6 ug/kg dry
91.6
1 08/03/22 12:15
08/04/22 21:32
MGG
o+m+p-Cresols
03
SW8270E
<91.6 ug/kg dry
91.6
1 08/03/22 12:15
08/04/22 21:32
MGG
o-Cresol
03
SW8270E
<91.6 ug/kg dry
91.6
1 08/03/22 12:15
08/04/22 21:32
MGG
p-(Dimethylamino)
03
SW8270E
<91.6 ug/kg dry
91.6
1 08/03/22 12:15
08/04/22 21:32
MGG
azobenzene
p-Chloro-m-cresol
03
SW8270E
<91.6 ug/kg dry
91.6
1 08/03/22 12:15
08/04/22 21:32
MGG
Pentachloronitrobenzene
03
SW8270E
<91.6 ug/kg dry
91.6
1 08/03/22 12:15
08/04/22 21:32
MGG
(quintozene)
Pentachlorophenol
03
SW8270E
<91.6 ug/kg dry
91.6
1 08/03/22 12:15
08/04/22 21:32
MGG
Phenacetin
03
SW8270E
<91.6 ug/kg dry
91.6
1 08/03/22 12:15
08/04/22 21:32
MGG
Phenanthrene
03
SW8270E
<91.6 ug/kg dry
91.6
1 08/03/22 12:15
08/04/22 21:32
MGG
Phenol
03
SW8270E
<91.6 ug/kg dry
91.6
1 08/03/22 12:15
08/04/22 21:32
MGG
Pronamide
03
SW8270E
<91.6 ug/kg dry
91.6
1 08/03/22 12:15
08/04/22 21:32
MGG
Pyrene
03
SW8270E
<91.6 ug/kg dry
91.6
1 08/03/22 12:15
08/04/22 21:32
MGG
Pyridine
03
SW8270E
<91.6 ug/kg dry
91.6
1 08/03/22 12:15
08/04/22 21:32
MGG
- - - - - - - - - - - -
Surr.- 2,4,6-Tribromophenol
- - - -
03
- - - - - - -
SW8270E
- - - - - - - - - - -
66.3 %
- - - - - -
15-96
- - - - - - - - -
08/03/22 12:15
- - - - - - -
08/04/22 21:32
- - -
MGG
(Surr)
Surr.- 2-Fluorobiphenyl (Surr)
03
SW8270E
70.9 %
19-105
08/03/22 12:15
08104122 21:32
MGG
Surr: 2-Fluorophenol (Surr)
03
SW8270E
53.9 %
12-95
08/03/22 12:15
08/04/22 21:32
MGG
Surr: Nitrobenzene-d5 (Surr)
03
SW8270E
68.1 %
21-100
08103122 12:15
08104122 21:32
MGG
Surr.- Phenol-d5 (Surr)
03
SW8270E
68.2 %
13-100
08/03/22 12:15
08104122 21:32
MGG
Surr: p-Terphenyl-d14 (Surr)
03
SW8270E
63.5 %
25-125
08/03/22 12:15
08/04/22 21:32
MGG
Organochlorine Pesticides and PCBs by GC/ECD
PCB as Aroclor 1016
03
SW8082A
<0.112 mg/kg dry
0.112
1 08/08/22 09:40
08/09/22 14:03
LBH2
PCB as Aroclor 1221
03
SW8082A
<0.112 mg/kg dry
0.112
1 08/08/22 09:40
08/09/22 14:03
LBH2
Page 25 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Analytical Results
Sample I.D. ET-E-1
Grab Date/Time:
Field Residual Cl:
Laboratory Order ID: 22HO122
07/27/2022 14:05
Laboratory Sample ID: 22HO122-03
Field pH:
Reporting Sample Prep Analysis
Parameter Samp ID Method Result Qual Limit D.F. Date/Time Date/Time Analyst
Organochlorine Pesticides and PCBs by GC/ECD
PCB as Aroclor 1232
03
SW8082A
<0.112 mg/kg dry
0.112
1 08/08/22 09:40
08/09/22 14:03
LBH2
PCB as Aroclor 1242
03
SW8082A
<0.112 mg/kg dry
0.112
1 08/08/22 09:40
08/09/22 14:03
LBH2
PCB as Aroclor 1248
03
SW8082A
<0.112 mg/kg dry
0.112
1 08/08/22 09:40
08/09/22 14:03
LBH2
PCB as Aroclor 1254
03
SW8082A
<0.112 mg/kg dry
0.112
1 08/08/22 09:40
08/09/22 14:03
LBH2
PCB as Aroclor 1260
03
SW8082A
<0.112 mg/kg dry
0.112
1 08/08/22 09:40
08/09/22 14:03
LBH2
- - - - - - - - - - - -
Surr: DCB
- - - -
03
- - - - - - -
SW8082A
- - - - - - - - - - - -
94.6 %
- - - - - -
30-105
- - - - - - - - -
08/08/22 09:40
- - - - - - -
08/09/22 14:03
- - -
LBH2
Surr: TCMX
03
SW8082A
72.0 %
30-105
08/08/22 09:40
08/09/22 14:03
LBH2
Wet Chemistry Analysis
Percent Solids
03
SM22
86.9 %
0.10
1 08/05/22 16:04
08/05/22 16:04
MAH
2540G-2011
Page 26 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-W-1
Grab Date/Time:
Field Residual Cl:
07/27/2022 14:30
Laboratory Sample ID: 22HO122-04
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual Limit
D.F.
Date/Time
Date/Time
Analyst
Volatile Organic Compounds by GCMS
1,1,1,2-Tetrachloroethane
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
1,1,1-Trichloroethane
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
1,1,2,2-Tetrachloroethane
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
1,1,2-Trichloroethane
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
1,1-Dichloroethane
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
1,1-Dichloroethylene
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
1,1-Dichloropropene
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
1,2,3-Trichlorobenzene
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
1,2,3-Trichloropropane
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
1,2,4-Trichlorobenzene
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
1,2,4-Trimethyl benzene
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
1,2-Dibromo-3-chloropropane
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
(DBCP)
1,2-Dibromoethane (EDB)
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
1,2-Dichlorobenzene
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
1,2-Dichloroethane
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
1,2-Dichloropropane
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
1,3,5-Trimethylbenzene
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
1,3-Dichlorobenzene
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
1,3-Dichloropropane
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
1,4-Dichlorobenzene
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
2,2-Dichloropropane
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
2-Butanone (MEK)
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
2-Chlorotoluene
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
2-Hexanone (MBK)
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
4-Chlorotoluene
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
Page 27 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-W-1
Grab Date/Time:
Field Residual Cl:
07/27/2022 14:30
Laboratory Sample ID: 22HO122-04
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual Limit
D.F.
Date/Time
Date/Time
Analyst
Volatile Organic Compounds by GCMS
4-Isopropyltoluene
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
4-Methyl-2-pentanone (MIBK)
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
Acetone
04
SW8260D
337 ug/kg dry
16.0
1
08/03/22 19:38
08/03/22 19:38
RJB
Benzene
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
Bromobenzene
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
Bromochloromethane
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
Bromodichloromethane
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
Bromoform
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
Bromomethane
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
Carbon disulfide
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
Carbon tetrachloride
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
Chlorobenzene
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
Chloroethane
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
Chloroform
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
Chloromethane
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
cis- 1,2-Dichloroethylene
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
cis- 1,3-Dichloropropene
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
Dibromochloromethane
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
Dibromomethane
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
Dichlorodifluoromethane
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
Di -isopropyl ether (DIPE)
04
SW8260D
<7.98 ug/kg dry
C 7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
Ethylbenzene
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
Hexachlorobutadiene
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
Iodomethane
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
Isopropyl benzene
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
m+p-Xylenes
04
SW8260D
<7.98 ug/kg dry
7.98
1
08/03/22 19:38
08/03/22 19:38
RJB
Page 28 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-W-1
Grab Date/Time: 07/27/2022 14:30
Laboratory Sample ID: 22HO122-04
Field Residual Cl: Field pH:
Reporting Sample Prep Analysis
Parameter Samp ID Method Result Qual Limit D.F. Date/Time Date/Time Analyst
Volatile Organic Compounds by GCMS
Methylene chloride
04
SW8260D
<7.98 ug/kg dry
7.98
1 08/03/22 19:38
08/03/22 19:38
RJB
Methyl-t-butyl ether (MTBE)
04
SW8260D
<7.98 ug/kg dry
7.98
1 08/03/22 19:38
08/03/22 19:38
RJB
Naphthalene
04
SW8260D
<7.98 ug/kg dry
7.98
1 08/03/22 19:38
08/03/22 19:38
RJB
n-Butylbenzene
04
SW8260D
<7.98 ug/kg dry
7.98
1 08/03/22 19:38
08/03/22 19:38
RJB
n-Propylbenzene
04
SW8260D
<7.98 ug/kg dry
7.98
1 08/03/22 19:38
08/03/22 19:38
RJB
o-Xylene
04
SW8260D
<7.98 ug/kg dry
7.98
1 08/03/22 19:38
08/03/22 19:38
RJB
sec- Butylbenzene
04
SW8260D
<7.98 ug/kg dry
7.98
1 08/03/22 19:38
08/03/22 19:38
RJB
Styrene
04
SW8260D
<7.98 ug/kg dry
7.98
1 08/03/22 19:38
08/03/22 19:38
RJB
tert-Butyl benzene
04
SW8260D
<7.98 ug/kg dry
7.98
1 08/03/22 19:38
08/03/22 19:38
RJB
Tetrachloroethylene (PCE)
04
SW8260D
<7.98 ug/kg dry
7.98
1 08/03/22 19:38
08/03/22 19:38
RJB
Toluene
04
SW8260D
<7.98 ug/kg dry
7.98
1 08/03/22 19:38
08/03/22 19:38
RJB
trans-1,2-Dichloroethylene
04
SW8260D
<7.98 ug/kg dry
7.98
1 08/03/22 19:38
08/03/22 19:38
RJB
trans-1,3-Dichloropropene
04
SW8260D
<7.98 ug/kg dry
7.98
1 08/03/22 19:38
08/03/22 19:38
RJB
Trichloroethylene
04
SW8260D
<7.98 ug/kg dry
7.98
1 08/03/22 19:38
08/03/22 19:38
RJB
Trichlorofluoromethane
04
SW8260D
<7.98 ug/kg dry
7.98
1 08/03/22 19:38
08/03/22 19:38
RJB
Vinyl acetate
04
SW8260D
<16.0 ug/kg dry
16.0
1 08/03/22 19:38
08/03/22 19:38
RJB
Vinyl chloride
04
SW8260D
<7.98 ug/kg dry
7.98
1 08/03/22 19:38
08/03/22 19:38
RJB
Xylenes, Total
04
SW8260D
<23.9 ug/kg dry
23.9
1 08/03/22 19:38
08/03/22 19:38
RJB
- - - - - - - - - - - -
Surr: 1,2-Dichloroethane-d4
- - - -
04
- - - - - - -
SW8260D
- - - - - - - - - -
134 %
- - - - - - - -
S 80-120
- - - - - - - - -
08/03/22 19:38
- - - - - - -
08/03/22 19:38
- - -
RJB
(Surr)
Surr: 4-Bromofluorobenzene
04
SW8260D
93.8 %
85-120
08103122 19:38
08103122 19:38
RJB
(Surr)
Surr: Dibromofluoromethane
04
SW8260D
105 %
80-130
08/03/22 19:38
08/03/22 19:38
RJB
(Surr)
Surr.- Toluene-d8 (Surr)
04
SW8260D
105 %
85-115
08/03/22 19:38
08/03/22 19:38
RJB
Semivolatile Organic Compounds by GCMS
Page 29 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-W-1
Grab Date/Time:
Field Residual Cl:
07/27/2022 14:30
Laboratory Sample ID: 22HO122-04
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual Limit
D.F.
Date/Time
Date/Time
Analyst
Semivolatile Organic Compounds by GCMS
1,2,4,5-Tetrachlorobenzene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
1,2,4-Trichlorobenzene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
1,2-Dichlorobenzene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
1,2-Diphenylhydrazine
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
1,3-Dichlorobenzene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
1,4-Dichlorobenzene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
1-Chloronaphthalene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
1-Naphthylamine
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
2,3,4,6-Tetrachlorophenol
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
2,4,5-Trichlorophenol
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
2,4,6-Trichlorophenol
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
2,4-Dichlorophenol
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
2,4-Dimethylphenol
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
2,4-Dinitrophenol
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
2,4-Dinitrotoluene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
2,6-Dichlorophenol
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
2,6-Dinitrotoluene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
2-Chloronaphthalene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
2-Chlorophenol
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
2-Methylnaphthalene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
2-Naphthylamine
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
2-Nitroaniline
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
2-Nitrophenol
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
3,3'-Dichlorobenzidine
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
3-Methylcholanthrene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
3-Nitroaniline
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Page 30 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-W-1
Grab Date/Time:
Field Residual Cl:
07/27/2022 14:30
Laboratory Sample ID: 22HO122-04
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual Limit
D.F.
Date/Time
Date/Time
Analyst
Semivolatile Organic Compounds by GCMS
4,6-Dinitro-2-methylphenol
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
4-Aminobiphenyl
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
4-Bromophenyl phenyl ether
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
4-Chloroaniline
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
4-Chlorophenyl phenyl ether
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
4-Nitroaniline
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
4-Nitrophenol
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
7,12-Dimethylbenz (a)
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
anthracene
Acenaphthene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Acenaphthylene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Acetophenone
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Aniline
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Anthracene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Benzidine
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Benzo (a) anthracene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Benzo (a) pyrene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Benzo (b) fluoranthene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Benzo (g,h,i) perylene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Benzo (k) fluoranthene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Benzoic acid
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Benzyl alcohol
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
bis (2-Chloroethoxy) methane
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
bis (2-Chloroethyl) ether
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
2,2'-Oxybis (1-chloropropane)
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
bis (2-Ethylhexyl) phthalate
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Page 31 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-W-1
Grab Date/Time:
Field Residual Cl:
07/27/2022 14:30
Laboratory Sample ID: 22HO122-04
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual Limit
D.F.
Date/Time
Date/Time
Analyst
Semivolatile Organic Compounds by GCMS
Butyl benzyl phthalate
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Chrysene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Dibenz (a,h) anthracene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Dibenz (a,j) acridine
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Dibenzofuran
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Diethyl phthalate
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Dimethyl phthalate
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Di-n-butyl phthalate
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Di-n-octyl phthalate
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Diphenylamine
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Ethyl methanesulfonate
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Fluoranthene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Fluorene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Hexachlorobenzene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Hexachlorobutadiene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Hexachlorocyclopentadiene
04
SW8270E
<345 ug/kg dry
C 345
4
08/03/22 12:15
08/04/22 22:06
MGG
Hexachloroethane
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Indeno (1,2,3-cd) pyrene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Isophorone
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
m+p-Cresols
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Methyl methanesulfonate
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Naphthalene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Nitrobenzene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
n-Nitrosodimethylamine
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
n-Nitrosodi-n-butylamine
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
n-Nitrosodi-n-propylamine
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Page 32 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Analytical Results
Sample I.D. ET-W-1
Grab Date/Time:
Field Residual Cl:
Laboratory Order ID: 22HO122
07/27/2022 14:30
Laboratory Sample ID: 22HO122-04
Field pH:
Parameter
Samp ID
Method
Result
Reporting
Qual Limit
D.F.
Sample Prep
Date/Time
Analysis
Date/Time
Analyst
Semivolatile Organic Compounds by GCMS
n-Nitrosodiphenylamine
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
n-Nitrosopiperidine
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
o+m+p-Cresols
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
o-Cresol
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
p-(Dimethylamino)
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
azobenzene
p-Chloro-m-cresol
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Pentachloronitrobenzene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
(quintozene)
Pentachlorophenol
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Phenacetin
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Phenanthrene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Phenol
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Pronamide
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Pyrene
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
Pyridine
04
SW8270E
<345 ug/kg dry
345
4
08/03/22 12:15
08/04/22 22:06
MGG
- - - - - - - - - - - -
Surr.- 2,4,6-Tribromophenol
- - -
04
- - - - - - -
SW8270E
- - - - - - - - - - -
59.5 %
- - - - - -
15-96
- -
- - - - - - -
08/03/22 12:15
- - - - - - -
08/04/22 22:06
- - -
MGG
(Surr)
Surr.- 2-Fluorobiphenyl (Surr)
04
SW8270E
46.2 %
19-105
08/03/22 12:15
08104122 22:06
MGG
Surr: 2-Fluorophenol (Surr)
04
SW8270E
52.1 %
12-95
08/03/22 12:15
08/04/22 22:06
MGG
Surr: Nitrobenzene-d5 (Surr)
04
SW8270E
56.1 %
21-100
08103122 12:15
08104122 22:06
MGG
Surr.- Phenol-d5 (Surr)
04
SW8270E
50.2 %
13-100
08/03/22 12:15
08104122 22:06
MGG
Surr: p-Terphenyl-d14 (Surr)
04
SW8270E
59.8 %
25-125
08/03/22 12:15
08/04/22 22:06
MGG
Organochlorine Pesticides and PCBs by GC/ECD
PCB as Aroclor 1016
04
SW8082A
<0.108 mg/kg dry
0.108
1
08/08/22 09:40
08/09/22 14:23
LBH2
PCB as Aroclor 1221
04
SW8082A
<0.108 mg/kg dry
0.108
1
08/08/22 09:40
08/09/22 14:23
LBH2
Page 33 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Analytical Results
Sample I.D. ET-W-1
Grab Date/Time:
Field Residual Cl:
Laboratory Order ID: 22HO122
07/27/2022 14:30
Laboratory Sample ID: 22HO122-04
Field pH:
Reporting Sample Prep Analysis
Parameter Samp ID Method Result Qual Limit D.F. Date/Time Date/Time Analyst
Organochlorine Pesticides and PCBs by GC/ECD
PCB as Aroclor 1232
04
SW8082A
<0.108 mg/kg dry
0.108
1 08/08/22 09:40
08/09/22 14:23
LBH2
PCB as Aroclor 1242
04
SW8082A
<0.108 mg/kg dry
0.108
1 08/08/22 09:40
08/09/22 14:23
LBH2
PCB as Aroclor 1248
04
SW8082A
<0.108 mg/kg dry
0.108
1 08/08/22 09:40
08/09/22 14:23
LBH2
PCB as Aroclor 1254
04
SW8082A
<0.108 mg/kg dry
0.108
1 08/08/22 09:40
08/09/22 14:23
LBH2
PCB as Aroclor 1260
04
SW8082A
<0.108 mg/kg dry
0.108
1 08/08/22 09:40
08/09/22 14:23
LBH2
- - - - - - - - - - - -
Surr: DCB
- - - -
04
- - - - - - -
SW8082A
- - - - - - - - - - - -
91.7 %
- - - - - -
30-105
- - - - - - - - -
08/08/22 09:40
- - - - - - -
08/09/22 14:23
- - -
LBH2
Surr: TCMX
04
SW8082A
65.4 %
30-105
08/08/22 09:40
08/09/22 14:23
LBH2
Wet Chemistry Analysis
Percent Solids
04
SM22
91.9 %
0.10
1 08/05/22 16:04
08/05/22 16:04
MAH
2540G-2011
Page 34 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-B-1
Grab Date/Time:
Field Residual Cl:
07/27/2022 14:45
Laboratory Sample ID: 22HO122-05
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual Limit
D.F.
Date/Time
Date/Time
Analyst
Volatile Organic Compounds by GCMS
1,1,1,2-Tetrachloroethane
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
1,1,1-Trichloroethane
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
1,1,2,2-Tetrachloroethane
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
1,1,2-Trichloroethane
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
1,1-Dichloroethane
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
1,1-Dichloroethylene
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
1,1-Dichloropropene
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
1,2,3-Trichlorobenzene
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
1,2,3-Trichloropropane
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
1,2,4-Trichlorobenzene
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
1,2,4-Trimethyl benzene
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
1,2-Dibromo-3-chloropropane
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
(DBCP)
1,2-Dibromoethane (EDB)
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
1,2-Dichlorobenzene
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
1,2-Dichloroethane
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
1,2-Dichloropropane
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
1,3,5-Trimethylbenzene
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
1,3-Dichlorobenzene
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
1,3-Dichloropropane
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
1,4-Dichlorobenzene
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
2,2-Dichloropropane
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
2-Butanone (MEK)
05
SW8260D
7.12 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
2-Chlorotoluene
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
2-Hexanone (MBK)
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
4-Chlorotoluene
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
Page 35 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-13-1
Grab Date/Time:
Field Residual Cl:
07/27/2022 14:45
Laboratory Sample ID: 22HO122-05
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual Limit
D.F.
Date/Time
Date/Time
Analyst
Volatile Organic Compounds by GCMS
4-Isopropyltoluene
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
4-Methyl-2-pentanone (MIBK)
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
Acetone
05
SW8260D
181 ug/kg dry
10.0
1
08/03/22 20:05
08/03/22 20:05
RJB
Benzene
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
Bromobenzene
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
Bromochloromethane
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
Bromodichloromethane
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
Bromoform
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
Bromomethane
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
Carbon disulfide
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
Carbon tetrachloride
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
Chlorobenzene
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
Chloroethane
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
Chloroform
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
Chloromethane
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
cis- 1,2-Dichloroethylene
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
cis- 1,3-Dichloropropene
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
Dibromochloromethane
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
Dibromomethane
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
Dichlorodifluoromethane
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
Di -isopropyl ether (DIPE)
05
SW8260D
<5.00 ug/kg dry
C 5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
Ethylbenzene
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
Hexachlorobutadiene
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
Iodomethane
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
Isopropyl benzene
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
m+p-Xylenes
05
SW8260D
<5.00 ug/kg dry
5.00
1
08/03/22 20:05
08/03/22 20:05
RJB
Page 36 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-B-1
Grab Date/Time: 07/27/2022 14:45
Laboratory Sample ID: 22HO122-05
Field Residual Cl: Field pH:
Reporting Sample Prep Analysis
Parameter Samp ID Method Result Qual Limit D.F. Date/Time Date/Time Analyst
Volatile Organic Compounds by GCMS
Methylene chloride
05
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 20:05
08/03/22 20:05
RJB
Methyl-t-butyl ether (MTBE)
05
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 20:05
08/03/22 20:05
RJB
Naphthalene
05
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 20:05
08/03/22 20:05
RJB
n-Butylbenzene
05
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 20:05
08/03/22 20:05
RJB
n-Propylbenzene
05
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 20:05
08/03/22 20:05
RJB
o-Xylene
05
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 20:05
08/03/22 20:05
RJB
sec- Butylbenzene
05
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 20:05
08/03/22 20:05
RJB
Styrene
05
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 20:05
08/03/22 20:05
RJB
tert-Butyl benzene
05
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 20:05
08/03/22 20:05
RJB
Tetrachloroethylene (PCE)
05
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 20:05
08/03/22 20:05
RJB
Toluene
05
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 20:05
08/03/22 20:05
RJB
trans-1,2-Dichloroethylene
05
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 20:05
08/03/22 20:05
RJB
trans-1,3-Dichloropropene
05
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 20:05
08/03/22 20:05
RJB
Trichloroethylene
05
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 20:05
08/03/22 20:05
RJB
Trichlorofluoromethane
05
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 20:05
08/03/22 20:05
RJB
Vinyl acetate
05
SW8260D
<10.0 ug/kg dry
10.0
1 08/03/22 20:05
08/03/22 20:05
RJB
Vinyl chloride
05
SW8260D
<5.00 ug/kg dry
5.00
1 08/03/22 20:05
08/03/22 20:05
RJB
Xylenes, Total
05
SW8260D
<15.0 ug/kg dry
15.0
1 08/03/22 20:05
08/03/22 20:05
RJB
- - - - - - - - - - - -
Surr: 1,2-Dichloroethane-d4
- - - -
05
- - - - - - -
SW8260D
- - - - - - - - - - - -
117 %
- - - - - -
80-120
- - - - - - - - -
08/03/22 20:05
- - - - - - -
08/03/22 20:05
- - -
RJB
(Surr)
Surr: 4-Bromofluorobenzene
05
SW8260D
93.9 %
85-120
08103122 20:05
08103122 20:05
RJB
(Surr)
Surr: Dibromofluoromethane
05
SW8260D
102 %
80-130
08/03/22 20:05
08/03/22 20:05
RJB
(Surr)
Surr.- Toluene-d8 (Surr)
05
SW8260D
98.4 %
85-115
08/03/22 20:05
08/03/22 20:05
RJB
Semivolatile Organic Compounds by GCMS
Page 37 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-B-1
Grab Date/Time:
Field Residual Cl:
07/27/2022 14:45
Laboratory Sample ID: 22HO122-05
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual Limit
D.F.
Date/Time
Date/Time
Analyst
Semivolatile Organic Compounds by GCMS
1,2,4,5-Tetrachlorobenzene
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
1,2,4-Trichlorobenzene
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
1,2-Dichlorobenzene
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
1,2-Diphenylhydrazine
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
1,3-Dichlorobenzene
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
1,4-Dichlorobenzene
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
1-Chloronaphthalene
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
1-Naphthylamine
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
2,3,4,6-Tetrachlorophenol
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
2,4,5-Trichlorophenol
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
2,4,6-Trichlorophenol
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
2,4-Dichlorophenol
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
2,4-Dimethylphenol
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
2,4-Dinitrophenol
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
2,4-Dinitrotoluene
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
2,6-Dichlorophenol
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
2,6-Dinitrotoluene
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
2-Chloronaphthalene
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
2-Chlorophenol
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
2-Methylnaphthalene
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
2-Naphthylamine
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
2-Nitroaniline
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
2-Nitrophenol
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
3,3'-Dichlorobenzidine
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
3-Methylcholanthrene
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
3-Nitroaniline
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Page 38 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-B-1
Grab Date/Time:
Field Residual Cl:
07/27/2022 14:45
Laboratory Sample ID: 22HO122-05
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual Limit
D.F.
Date/Time
Date/Time
Analyst
Semivolatile Organic Compounds by GCMS
4,6-Dinitro-2-methylphenol
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
4-Aminobiphenyl
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
4-Bromophenyl phenyl ether
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
4-Chloroaniline
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
4-Chlorophenyl phenyl ether
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
4-Nitroaniline
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
4-Nitrophenol
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
7,12-Dimethylbenz (a)
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
anthracene
Acenaphthene
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Acenaphthylene
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Acetophenone
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Aniline
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Anthracene
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Benzidine
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Benzo (a) anthracene
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Benzo (a) pyrene
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Benzo (b) fluoranthene
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Benzo (g,h,i) perylene
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Benzo (k) fluoranthene
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Benzoic acid
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Benzyl alcohol
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
bis (2-Chloroethoxy) methane
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
bis (2-Chloroethyl) ether
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
2,2'-Oxybis (1-chloropropane)
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
bis (2-Ethylhexyl) phthalate
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Page 39 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-B-1
Grab Date/Time:
Field Residual Cl:
07/27/2022 14:45
Laboratory Sample ID: 22HO122-05
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual Limit
D.F.
Date/Time
Date/Time
Analyst
Semivolatile Organic Compounds by GCMS
Butyl benzyl phthalate
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Chrysene
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Dibenz (a,h) anthracene
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Dibenz (a,j) acridine
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Dibenzofuran
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Diethyl phthalate
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Dimethyl phthalate
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Di-n-butyl phthalate
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Di-n-octyl phthalate
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Diphenylamine
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Ethyl methanesulfonate
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Fluoranthene
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Fluorene
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Hexachlorobenzene
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Hexachlorobutadiene
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Hexachlorocyclopentadiene
05
SW8270E
<92.2 ug/kg dry
C 92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Hexachloroethane
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Indeno (1,2,3-cd) pyrene
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Isophorone
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
m+p-Cresols
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Methyl methanesulfonate
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Naphthalene
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Nitrobenzene
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
n-Nitrosodimethylamine
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
n-Nitrosodi-n-butylamine
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
n-Nitrosodi-n-propylamine
05
SW8270E
<92.2 ug/kg dry
92.2
1
08/03/22 12:15
08/04/22 22:40
MGG
Page 40 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-B-1
Grab Date/Time: 07/27/2022 14:45
Laboratory Sample ID: 22HO122-05
Field Residual Cl: Field pH:
Reporting Sample Prep Analysis
Parameter Samp ID Method Result Qual Limit D.F. Date/Time Date/Time Analyst
Semivolatile Organic Compounds by GCMS
n-Nitrosodiphenylamine
05
SW8270E
<92.2 ug/kg dry
92.2
1 08/03/22 12:15
08/04/22 22:40
MGG
n-Nitrosopiperidine
05
SW8270E
<92.2 ug/kg dry
92.2
1 08/03/22 12:15
08/04/22 22:40
MGG
o+m+p-Cresols
05
SW8270E
<92.2 ug/kg dry
92.2
1 08/03/22 12:15
08/04/22 22:40
MGG
o-Cresol
05
SW8270E
<92.2 ug/kg dry
92.2
1 08/03/22 12:15
08/04/22 22:40
MGG
p-(Dimethylamino)
05
SW8270E
<92.2 ug/kg dry
92.2
1 08/03/22 12:15
08/04/22 22:40
MGG
azobenzene
p-Chloro-m-cresol
05
SW8270E
<92.2 ug/kg dry
92.2
1 08/03/22 12:15
08/04/22 22:40
MGG
Pentachloronitrobenzene
05
SW8270E
<92.2 ug/kg dry
92.2
1 08/03/22 12:15
08/04/22 22:40
MGG
(quintozene)
Pentachlorophenol
05
SW8270E
<92.2 ug/kg dry
92.2
1 08/03/22 12:15
08/04/22 22:40
MGG
Phenacetin
05
SW8270E
<92.2 ug/kg dry
92.2
1 08/03/22 12:15
08/04/22 22:40
MGG
Phenanthrene
05
SW8270E
<92.2 ug/kg dry
92.2
1 08/03/22 12:15
08/04/22 22:40
MGG
Phenol
05
SW8270E
<92.2 ug/kg dry
92.2
1 08/03/22 12:15
08/04/22 22:40
MGG
Pronamide
05
SW8270E
<92.2 ug/kg dry
92.2
1 08/03/22 12:15
08/04/22 22:40
MGG
Pyrene
05
SW8270E
<92.2 ug/kg dry
92.2
1 08/03/22 12:15
08/04/22 22:40
MGG
Pyridine
05
SW8270E
<92.2 ug/kg dry
92.2
1 08/03/22 12:15
08/04/22 22:40
MGG
- - - - - - - - - - - -
Surr.- 2,4,6-Tribromophenol
- - - -
05
- - - - - - -
SW8270E
- - - - - - - - - - -
52.3 %
- - - - - -
15-96
- - - - - - - - -
08/03/22 12:15
- - - - - - -
08/04/22 22:40
- - -
MGG
(Surr)
Surr.- 2-Fluorobiphenyl (Surr)
05
SW8270E
50.5 %
19-105
08/03/22 12:15
08104122 22:40
MGG
Surr: 2-Fluorophenol (Surr)
05
SW8270E
45.6 %
12-95
08/03/22 12:15
08/04/22 22:40
MGG
Surr: Nitrobenzene-d5 (Surr)
05
SW8270E
53.4 %
21-100
08103122 12:15
08104122 22:40
MGG
Surr.- Phenol-d5 (Surr)
05
SW8270E
57.8 %
13-100
08/03/22 12:15
08104122 22:40
MGG
Surr: p-Terphenyl-d14 (Surr)
05
SW8270E
55.3 %
25-125
08/03/22 12:15
08/04/22 22:40
MGG
Organochlorine Pesticides and PCBs by GC/ECD
PCB as Aroclor 1016
05
SW8082A
<0.116 mg/kg dry
0.116
1 08/08/22 09:40
08/09/22 14:43
LBH2
PCB as Aroclor 1221
05
SW8082A
<0.116 mg/kg dry
0.116
1 08/08/22 09:40
08/09/22 14:43
LBH2
Page 41 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Analytical Results
Sample I.D. ET-B-1
Grab Date/Time:
Field Residual Cl:
Laboratory Order ID: 22HO122
07/27/2022 14:45
Laboratory Sample ID: 22HO122-05
Field pH:
Reporting Sample Prep Analysis
Parameter Samp ID Method Result Qual Limit D.F. Date/Time Date/Time Analyst
Organochlorine Pesticides and PCBs by GC/ECD
PCB as Aroclor 1232
05
SW8082A
<0.116 mg/kg dry
0.116
1 08/08/22 09:40
08/09/22 14:43
LBH2
PCB as Aroclor 1242
05
SW8082A
<0.116 mg/kg dry
0.116
1 08/08/22 09:40
08/09/22 14:43
LBH2
PCB as Aroclor 1248
05
SW8082A
<0.116 mg/kg dry
0.116
1 08/08/22 09:40
08/09/22 14:43
LBH2
PCB as Aroclor 1254
05
SW8082A
<0.116 mg/kg dry
0.116
1 08/08/22 09:40
08/09/22 14:43
LBH2
PCB as Aroclor 1260
05
SW8082A
<0.116 mg/kg dry
0.116
1 08/08/22 09:40
08/09/22 14:43
LBH2
- - - - - - - - - - - -
Surr: DCB
- - - -
05
- - - - - - -
SW8082A
- - - - - - - - - - - -
92.2 %
- - - - - -
30-105
- - - - - - - - -
08/08/22 09:40
- - - - - - -
08/09/22 14:43
- - -
LBH2
Surr: TCMX
05
SW8082A
58.8 %
30-105
08/08/22 09:40
08/09/22 14:43
LBH2
Wet Chemistry Analysis
Percent Solids
05
SM22
86.3 %
0.10
1 08/04/22 10:02
08/04/22 10:02
MAH
2540G-2011
Page 42 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-DUP
Grab Date/Time:
Field Residual Cl:
07/27/2022 00:00
Laboratory Sample ID: 22HO122-16
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual Limit
D.F.
Date/Time
Date/Time
Analyst
Volatile Organic Compounds by GCMS
1,1,1,2-Tetrachloroethane
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
1,1,1-Trichloroethane
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
1,1,2,2-Tetrachloroethane
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
1,1,2-Trichloroethane
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
1,1-Dichloroethane
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
1,1-Dichloroethylene
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
1,1-Dichloropropene
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
1,2,3-Trichlorobenzene
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
1,2,3-Trichloropropane
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
1,2,4-Trichlorobenzene
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
1,2,4-Trimethyl benzene
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
1,2-Dibromo-3-chloropropane
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
(DBCP)
1,2-Dibromoethane (EDB)
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
1,2-Dichlorobenzene
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
1,2-Dichloroethane
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
1,2-Dichloropropane
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
1,3,5-Trimethylbenzene
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
1,3-Dichlorobenzene
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
1,3-Dichloropropane
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
1,4-Dichlorobenzene
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
2,2-Dichloropropane
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
2-Butanone (MEK)
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
2-Chlorotoluene
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
2-Hexanone (MBK)
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
4-Chlorotoluene
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
Page 43 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-DUP
Grab Date/Time:
Field Residual Cl:
07/27/2022 00:00
Laboratory Sample ID: 22HO122-16
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual Limit
D.F.
Date/Time
Date/Time
Analyst
Volatile Organic Compounds by GCMS
4-Isopropyltoluene
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
4-Methyl-2-pentanone (MIBK)
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
Acetone
16
SW8260D
37.0 ug/kg dry
10.1
1
08/03/22 20:30
08/03/22 20:30
RJB
Benzene
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
Bromobenzene
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
Bromochloromethane
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
Bromodichloromethane
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
Bromoform
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
Bromomethane
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
Carbon disulfide
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
Carbon tetrachloride
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
Chlorobenzene
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
Chloroethane
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
Chloroform
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
Chloromethane
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
cis- 1,2-Dichloroethylene
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
cis- 1,3-Dichloropropene
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
Dibromochloromethane
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
Dibromomethane
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
Dichlorodifluoromethane
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
Di -isopropyl ether (DIPE)
16
SW8260D
<5.03 ug/kg dry
C 5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
Ethylbenzene
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
Hexachlorobutadiene
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
Iodomethane
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
Isopropyl benzene
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
m+p-Xylenes
16
SW8260D
<5.03 ug/kg dry
5.03
1
08/03/22 20:30
08/03/22 20:30
RJB
Page 44 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-DUP
Grab Date/Time: 07/27/2022 00:00
Laboratory Sample ID: 22HO122-16
Field Residual Cl: Field pH:
Reporting Sample Prep Analysis
Parameter Samp ID Method Result Qual Limit D.F. Date/Time Date/Time Analyst
Volatile Organic Compounds by GCMS
Methylene chloride
16
SW8260D
<5.03 ug/kg dry
5.03
1 08/03/22 20:30
08/03/22 20:30
RJB
Methyl-t-butyl ether (MTBE)
16
SW8260D
<5.03 ug/kg dry
5.03
1 08/03/22 20:30
08/03/22 20:30
RJB
Naphthalene
16
SW8260D
<5.03 ug/kg dry
5.03
1 08/03/22 20:30
08/03/22 20:30
RJB
n-Butylbenzene
16
SW8260D
<5.03 ug/kg dry
5.03
1 08/03/22 20:30
08/03/22 20:30
RJB
n-Propylbenzene
16
SW8260D
<5.03 ug/kg dry
5.03
1 08/03/22 20:30
08/03/22 20:30
RJB
o-Xylene
16
SW8260D
<5.03 ug/kg dry
5.03
1 08/03/22 20:30
08/03/22 20:30
RJB
sec- Butylbenzene
16
SW8260D
<5.03 ug/kg dry
5.03
1 08/03/22 20:30
08/03/22 20:30
RJB
Styrene
16
SW8260D
<5.03 ug/kg dry
5.03
1 08/03/22 20:30
08/03/22 20:30
RJB
tert-Butyl benzene
16
SW8260D
<5.03 ug/kg dry
5.03
1 08/03/22 20:30
08/03/22 20:30
RJB
Tetrachloroethylene (PCE)
16
SW8260D
<5.03 ug/kg dry
5.03
1 08/03/22 20:30
08/03/22 20:30
RJB
Toluene
16
SW8260D
<5.03 ug/kg dry
5.03
1 08/03/22 20:30
08/03/22 20:30
RJB
trans-1,2-Dichloroethylene
16
SW8260D
<5.03 ug/kg dry
5.03
1 08/03/22 20:30
08/03/22 20:30
RJB
trans-1,3-Dichloropropene
16
SW8260D
<5.03 ug/kg dry
5.03
1 08/03/22 20:30
08/03/22 20:30
RJB
Trichloroethylene
16
SW8260D
<5.03 ug/kg dry
5.03
1 08/03/22 20:30
08/03/22 20:30
RJB
Trichlorofluoromethane
16
SW8260D
<5.03 ug/kg dry
5.03
1 08/03/22 20:30
08/03/22 20:30
RJB
Vinyl acetate
16
SW8260D
<10.1 ug/kg dry
10.1
1 08/03/22 20:30
08/03/22 20:30
RJB
Vinyl chloride
16
SW8260D
<5.03 ug/kg dry
5.03
1 08/03/22 20:30
08/03/22 20:30
RJB
Xylenes, Total
16
SW8260D
<15.1 ug/kg dry
15.1
1 08/03/22 20:30
08/03/22 20:30
RJB
- - - - - - - - - - - -
Surr: 1,2-Dichloroethane-d4
- - - -
16
- - - - - - -
SW8260D
- - - - - - - - - - - -
116 %
- - - - - -
80-120
- - - - - - - - -
08/03/22 20:30
- - - - - - -
08/03/22 20:30
- - -
RJB
(Surr)
Surr: 4-Bromofluorobenzene
16
SW8260D
94.6 %
85-120
08103122 20:30
08103122 20:30
RJB
(Surr)
Surr: Dibromofluoromethane
16
SW8260D
106 %
80-130
08/03/22 20:30
08/03/22 20:30
RJB
(Surr)
Surr.- Toluene-d8 (Surr)
16
SW8260D
101 %
85-115
08/03/22 20:30
08/03/22 20:30
RJB
Semivolatile Organic Compounds by GCMS
Page 45 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-DUP
Grab Date/Time:
Field Residual Cl:
07/27/2022 00:00
Laboratory Sample ID: 22HO122-16
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual Limit
D.F.
Date/Time
Date/Time
Analyst
Semivolatile Organic Compounds by GCMS
1,2,4,5-Tetrachlorobenzene
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
1,2,4-Trichlorobenzene
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
1,2-Dichlorobenzene
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
1,2-Diphenylhydrazine
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
1,3-Dichlorobenzene
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
1,4-Dichlorobenzene
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
1-Chloronaphthalene
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
1-Naphthylamine
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
2,3,4,6-Tetrachlorophenol
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
2,4,5-Trichlorophenol
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
2,4,6-Trichlorophenol
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
2,4-Dichlorophenol
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
2,4-Dimethylphenol
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
2,4-Dinitrophenol
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
2,4-Dinitrotoluene
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
2,6-Dichlorophenol
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
2,6-Dinitrotoluene
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
2-Chloronaphthalene
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
2-Chlorophenol
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
2-Methylnaphthalene
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
2-Naphthylamine
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
2-Nitroaniline
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
2-Nitrophenol
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
3,3'-Dichlorobenzidine
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
3-Methylcholanthrene
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
3-Nitroaniline
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Page 46 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-DUP
Grab Date/Time:
Field Residual Cl:
07/27/2022 00:00
Laboratory Sample ID: 22HO122-16
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual Limit
D.F.
Date/Time
Date/Time
Analyst
Semivolatile Organic Compounds by GCMS
4,6-Dinitro-2-methylphenol
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
4-Aminobiphenyl
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
4-Bromophenyl phenyl ether
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
4-Chloroaniline
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
4-Chlorophenyl phenyl ether
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
4-Nitroaniline
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
4-Nitrophenol
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
7,12-Dimethylbenz (a)
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
anthracene
Acenaphthene
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Acenaphthylene
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Acetophenone
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Aniline
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Anthracene
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Benzidine
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Benzo (a) anthracene
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Benzo (a) pyrene
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Benzo (b) fluoranthene
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Benzo (g,h,i) perylene
16
SW8270E
<87.7 ug/kg dry
C 87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Benzo (k) fluoranthene
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Benzoic acid
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Benzyl alcohol
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
bis (2-Chloroethoxy) methane
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
bis (2-Chloroethyl) ether
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
2,2'-Oxybis (1-chloropropane)
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
bis (2-Ethylhexyl) phthalate
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Page 47 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-DUP
Grab Date/Time:
Field Residual Cl:
07/27/2022 00:00
Laboratory Sample ID: 22HO122-16
Field pH:
Reporting
Sample Prep
Analysis
Parameter
Samp ID
Method
Result
Qual
Limit
D.F.
Date/Time
Date/Time
Analyst
Semivolatile Organic Compounds by GCMS
Butyl benzyl phthalate
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Chrysene
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Dibenz (a,h) anthracene
16
SW8270E
<87.7 ug/kg dry
C
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Dibenz (a,j) acridine
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Dibenzofuran
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Diethyl phthalate
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Dimethyl phthalate
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Di-n-butyl phthalate
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Di-n-octyl phthalate
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Diphenylamine
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Ethyl methanesulfonate
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Fluoranthene
16
SW8270E
<87.7 ug/kg dry
C
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Fluorene
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Hexachlorobenzene
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Hexachlorobutadiene
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Hexachlorocyclopentadiene
16
SW8270E
<87.7 ug/kg dry
C
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Hexachloroethane
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Indeno (1,2,3-cd) pyrene
16
SW8270E
<87.7 ug/kg dry
C
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Isophorone
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
m+p-Cresols
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Methyl methanesulfonate
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Naphthalene
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Nitrobenzene
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
n-Nitrosodimethylamine
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
n-Nitrosodi-n-butylamine
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
n-Nitrosodi-n-propylamine
16
SW8270E
<87.7 ug/kg dry
87.7
1
08/04/22 12:00
08/05/22 17:31
MGG
Page 48 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Laboratory Order ID: 22HO122
Analytical Results
Sample I.D. ET-DUP
Grab Date/Time: 07/27/2022 00:00
Laboratory Sample ID: 22HO122-16
Field Residual Cl: Field pH:
Reporting Sample Prep Analysis
Parameter Samp ID Method Result Qual Limit D.F. Date/Time Date/Time Analyst
Semivolatile Organic Compounds by GCMS
n-Nitrosodiphenylamine
16
SW8270E
<87.7 ug/kg dry
87.7
1 08/04/22 12:00
08/05/22 17:31
MGG
n-Nitrosopiperidine
16
SW8270E
<87.7 ug/kg dry
87.7
1 08/04/22 12:00
08/05/22 17:31
MGG
o+m+p-Cresols
16
SW8270E
<87.7 ug/kg dry
87.7
1 08/04/22 12:00
08/05/22 17:31
MGG
o-Cresol
16
SW8270E
<87.7 ug/kg dry
87.7
1 08/04/22 12:00
08/05/22 17:31
MGG
p-(Dimethylamino)
16
SW8270E
<87.7 ug/kg dry
87.7
1 08/04/22 12:00
08/05/22 17:31
MGG
azobenzene
p-Chloro-m-cresol
16
SW8270E
<87.7 ug/kg dry
87.7
1 08/04/22 12:00
08/05/22 17:31
MGG
Pentachloronitrobenzene
16
SW8270E
<87.7 ug/kg dry
87.7
1 08/04/22 12:00
08/05/22 17:31
MGG
(quintozene)
Pentachlorophenol
16
SW8270E
<87.7 ug/kg dry
87.7
1 08/04/22 12:00
08/05/22 17:31
MGG
Phenacetin
16
SW8270E
<87.7 ug/kg dry
87.7
1 08/04/22 12:00
08/05/22 17:31
MGG
Phenanthrene
16
SW8270E
<87.7 ug/kg dry
87.7
1 08/04/22 12:00
08/05/22 17:31
MGG
Phenol
16
SW8270E
<87.7 ug/kg dry
87.7
1 08/04/22 12:00
08/05/22 17:31
MGG
Pronamide
16
SW8270E
<87.7 ug/kg dry
87.7
1 08/04/22 12:00
08/05/22 17:31
MGG
Pyrene
16
SW8270E
<87.7 ug/kg dry
87.7
1 08/04/22 12:00
08/05/22 17:31
MGG
Pyridine
16
SW8270E
<87.7 ug/kg dry
87.7
1 08/04/22 12:00
08/05/22 17:31
MGG
- - - - - - - - - - - -
Surr.- 2,4,6-Tribromophenol
- - - -
16
- - - - - - -
SW8270E
- - - - - - - - - - -
69.5 %
- - - - - -
15-96
- - - - - - - - -
08/04/22 12:00
- - - - - - -
08/05/22 17:31
- - -
MGG
(Surr)
Surr.- 2-Fluorobiphenyl (Surr)
16
SW8270E
79.6 %
19-105
08104122 12:00
08105122 17:31
MGG
Surr: 2-Fluorophenol (Surr)
16
SW8270E
61.7 %
12-95
08/04/22 12:00
08/05/22 17:31
MGG
Surr: Nitrobenzene-d5 (Surr)
16
SW8270E
71.7 %
21-100
08104122 12:00
08105122 17:31
MGG
Surr.- Phenol-d5 (Surr)
16
SW8270E
69.8 %
13-100
08104122 12:00
08105122 17:31
MGG
Surr: p-Terphenyl-d14 (Surr)
16
SW8270E
72.6 %
25-125
08/04/22 12:00
08/05/22 17:31
MGG
Organochlorine Pesticides and PCBs by GC/ECD
PCB as Aroclor 1016
16
SW8082A
<0.108 mg/kg dry
0.108
1 08/08/22 09:40
08/09/22 15:02
LBH2
PCB as Aroclor 1221
16
SW8082A
<0.108 mg/kg dry
0.108
1 08/08/22 09:40
08/09/22 15:02
LBH2
Page 49 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Analytical Results
Sample I.D. ET-DUP
Grab Date/Time:
Field Residual Cl:
Laboratory Order ID: 22HO122
07/27/2022 00:00
Laboratory Sample ID: 22HO122-16
Field pH:
Reporting Sample Prep Analysis
Parameter Samp ID Method Result Qual Limit D.F. Date/Time Date/Time Analyst
Organochlorine Pesticides and PCBs by GC/ECD
PCB as Aroclor 1232
16
SW8082A
<0.108 mg/kg dry
0.108
1 08/08/22 09:40
08/09/22 15:02
LBH2
PCB as Aroclor 1242
16
SW8082A
<0.108 mg/kg dry
0.108
1 08/08/22 09:40
08/09/22 15:02
LBH2
PCB as Aroclor 1248
16
SW8082A
<0.108 mg/kg dry
0.108
1 08/08/22 09:40
08/09/22 15:02
LBH2
PCB as Aroclor 1254
16
SW8082A
<0.108 mg/kg dry
0.108
1 08/08/22 09:40
08/09/22 15:02
LBH2
PCB as Aroclor 1260
16
SW8082A
<0.108 mg/kg dry
0.108
1 08/08/22 09:40
08/09/22 15:02
LBH2
- - - - - - - - - - - -
Surr: DCB
- - - -
16
- - - - - - -
SW8082A
- - - - - - - - - - - -
91.3 %
- - - - - -
30-105
- - - - - - - - -
08/08/22 09:40
- - - - - - -
08/09/22 15:02
- - -
LBH2
Surr: TCMX
16
SW8082A
75.3 %
30-105
08/08/22 09:40
08/09/22 15:02
LBH2
Wet Chemistry Analysis
Percent Solids
16
SM22
91.1 %
0.10
1 08/05/22 16:04
08/05/22 16:04
MAH
2540G-2011
Page 50 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name:
S&ME - Raleigh
Date Issued:
October 21, 2022 14:27
3201 Spring Forest Road
Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To:
Sam Watts
Client Site I.D.:
Welcome Ventures
Analytical Summary
Administrative
Preparation Method:
22HO122-01
Subcontract
22HO122-02
Subcontract
22HO122-03
Subcontract
22HO122-04
Subcontract
22HO122-05
Subcontract
Preparation Factors
Sample ID
Initial I Final
Method
Batch ID
Sequence ID
Calibration ID
Wet Chemistry Analysis
Preparation Method:
No Prep Wet Chem
22HO122-01
10.0 g / 10.0 mL
SM22 254OG-2011
BFHO164
SFHO157
22HO122-05
10.0 g / 10.0 mL
SM22 2540G-2011
BFHO164
SFHO157
Wet Chemistry Analysis
Preparation Method:
No Prep Wet Chem
22HO122-02
10.0 g / 10.0 mL
SM22 2540G-2011
BFH0245
SFH0224
22HO122-03
10.0 g / 10.0 mL
SM22 254OG-2011
BFH0245
SFH0224
22HO122-04
10.0 g / 10.0 mL
SM22 2540G-2011
BFH0245
SFH0224
22HO122-16
10.0 g / 10.0 mL
SM22 2540G-2011
BFH0245
SFH0224
Preparation Factors
Sample ID
Initial / Final
Method
Batch ID
Sequence ID
Calibration ID
Organochlorine Pesticides and PCBs by GC/ECD
Preparation Method:
SW3550B
22HO122-01
30.4 g / 5.00 mL
SW8082A
BFH0282
SFH0279
AG20111
22HO122-02
30.3 g / 5.00 mL
SW8082A
BFH0282
SFH0279
AG20111
22HO122-03
30.7 g / 5.00 mL
SW8082A
BFH0282
SFH0279
AG20111
22HO122-04
30.3 g / 5.00 mL
SW8082A
BFH0282
SFH0279
AG20111
22HO122-05
30.0 g / 5.00 mL
SW8082A
BFH0282
SFH0279
AG20111
22HO122-16
30.4 g / 5.00 mL
SW8082A
BFH0282
SFH0279
AG20111
Preparation Factors
Sample ID
Initial / Final
Method
Batch ID
Sequence ID
Calibration ID
Semivolatile Organic Compounds by GCMS
Preparation Method:
SW3550C/EPA600-MS
22HO122-01
32.4 g / 1.00 mL
SW8270E
BFHO127
SFH0205
AG20056
22HO122-02
30.4 g / 1.00 mL
SW8270E
BFHO127
SFH0205
AG20056
22HO122-03
31.4 g / 1.00 mL
SW8270E
BFHO127
SFH0205
AG20056
22HO122-04
31.5 g / 1.00 mL
SW8270E
BFHO127
SFH0205
AG20056
Page 51 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Preparation Factors
Sample ID Initial / Final Method Batch ID Sequence ID Calibration ID
22HO122-05 31.4 g / 1.00 mL
SW8270E
BFHO127 SFH0205 AG20056
Semivolatile Organic Compounds by GCMS
Preparation Method:
SW3550C/EPA600-MS
22HO122-16 31.3 g / 1.00 mL
SW8270E
BFHO196 SFH0257 AG20056
Preparation Factors
Sample ID Initial / Final
Method
Batch ID Sequence ID Calibration ID
Volatile Organic Compounds by GCMS
Preparation Method:
SW5035-MS
22HO122-01
6.09 g / 5.00 mL
SW8260D
BFHO110
SFHO117
AG20115
22HO122-02
5.06 g / 5.00 mL
SW8260D
BFHO110
SFHO117
AG20115
22HO122-03
7.11 g / 5.00 mL
SW8260D
BFHO110
SFHO117
AG20115
22HO122-04
3.41 g / 5.00 mL
SW8260D
BFHO110
SFHO117
AG20115
22HO122-05
6.77 g / 5.00 mL
SW8260D
BFHO110
SFHO117
AG20115
22HO122-16
5.46 g / 5.00 mL
SW8260D
BFHO110
SFHO117
AG20115
Page 52 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name:
S&ME - Raleigh
Date Issued:
October 21, 2022 14:27
3201 Spring Forest Road
Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To:
Sam Watts
Client Site I.D.:
Welcome Ventures
QC Analytical Summary
Preparation Factors
Sample ID
Initial / Final
Method
Batch ID
Sequence ID
Calibration ID
Wet Chemistry Analysis
Preparation Method:
No Prep Wet Chem
BFHO164-BLK1
10.0 g / 10.0 mL
SM22 2540G-2011
BFHO164
SFHO157
BFHO164-DUP1
10.0 g / 10.0 mL
SM22 2540G-2011
BFHO164
SFHO157
BFHO164-DUP2
10.0 g / 10.0 mL
SM22 2540G-2011
BFHO164
SFHO157
BFH0245-BLK1
10.0 g / 10.0 mL
SM22 2540G-2011
BFH0245
SFH0224
BFH0245-DUP1
10.0 g / 10.0 mL
SM22 254OG-2011
BFH0245
SFH0224
Preparation Factors
Sample ID
Initial / Final
Method
Batch ID
Sequence ID
Calibration ID
Organochlorine Pesticides
and PCBs by GC/ECD
Preparation Method:
SW3550B
BFH0282-BLK1
30.2 g / 5.00 mL
SW8082A
BFH0282
SFH0279
AG20111
BFH0282-BS1
31.4 g / 5.00 mL
SW8082A
BFH0282
SFH0279
AG20111
BFH0282-MS1
30.3 g / 5.00 mL
SW8082A
BFH0282
SFH0279
AG20111
BFH0282-MSD1
30.1 g / 5.00 mL
SW8082A
BFH0282
SFH0279
AG20111
Preparation Factors
Sample ID
Initial / Final
Method
Batch ID
Sequence ID
Calibration ID
Semivolatile Organic Compounds by GCMS
Preparation Method:
SW3550C/EPA600-MS
BFHO127-BLK1
30.2 g / 1.00 mL
SW8270E
BFHO127
SFH0205
AG20056
BFHO127-BLK2
SW8270E
BFHO127
SFHO517
AG20013
BFHO127-BS1
31.2 g / 1.00 mL
SW8270E
BFHO127
SFH0205
AG20056
BFHO127-MS1
30.8 g / 1.00 mL
SW8270E
BFHO127
SFH0205
AG20056
BFHO127-MSD1
30.6 g / 1.00 mL
SW8270E
BFHO127
SFH0205
AG20056
BFHO196-BLK1
31.8 g / 1.00 mL
SW8270E
BFHO196
SFH0257
AG20056
BFHO196-BS1
30.8 g / 1.00 mL
SW8270E
BFHO196
SFH0257
AG20056
BFHO196-MS1
31.3 g / 1.00 mL
SW8270E
BFHO196
SFH0257
AG20056
BFHO196-MSD1
30.3 g / 1.00 mL
SW8270E
BFHO196
SFH0257
AG20056
Preparation Factors
Sample ID
Initial / Final
Method
Batch ID
Sequence ID
Calibration ID
Volatile Organic Compounds by GCMS Preparation Method: SW5035-MS
Page 53 of 114

Client Name:
Submitted To:
Client Site I.D.
Sample ID
yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Sam Watts
Welcome Ventures
Preparation Factors
Initial / Final Method Batch ID Sequence ID Calibration ID
Volatile Organic Compounds by GCMS
BFHO110-BLK1 5.00 g / 5.00 mL
BFHO110-BS1 5.00 g / 5.00 mL
BFHO110-DUP1 5.89 g / 5.00 mL
Preparation Method: SW5035-MS
SW8260D BFHO110 SFHO117
SW8260D BFHO110 SFHO117
SW8260D BFHO110 SFH0269
AG20115
AG20115
AG20115
Page 54 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Volatile Organic Compounds by GCMS - Quality Control
Enthalpy Analytical
Reporting Spike Source %REC RPD
Analyte Result Limit Units Level Result %REC Limits RPD Limit Qual
Batch BFH0110 - SW5035-MS
Blank (BFH0110-BLK1)
Prepared & Analyzed: 08/03/2022
1,1,1,2-Tetrachloroethane
<5.00 ug/kg wet
5.00
ug/kg wet
1,1,1-Trichloroethane
<5.00 ug/kg wet
5.00
ug/kg wet
1,1,2,2-Tetrachloroethane
<5.00 ug/kg wet
5.00
ug/kg wet
1,1,2-Trichloroethane
<5.00 ug/kg wet
5.00
ug/kg wet
1,1-Dichloroethane
<5.00 ug/kg wet
5.00
ug/kg wet
1,1-Dichloroethylene
<5.00 ug/kg wet
5.00
ug/kg wet
1,1-Dichloropropene
<5.00 ug/kg wet
5.00
ug/kg wet
1,2,3-Trichlorobenzene
<5.00 ug/kg wet
5.00
ug/kg wet
1,2,3-Trichloropropane
<5.00 ug/kg wet
5.00
ug/kg wet
1,2,4-Trichlorobenzene
<5.00 ug/kg wet
5.00
ug/kg wet
1,2,4-Trimethyl benzene
<5.00 ug/kg wet
5.00
ug/kg wet
1,2-Dibromo-3-chloropropane (DBCP)
<5.00 ug/kg wet
5.00
ug/kg wet
1,2-Dibromoethane (EDB)
<5.00 ug/kg wet
5.00
ug/kg wet
1,2-Dichlorobenzene
<5.00 ug/kg wet
5.00
ug/kg wet
1,2-Dichloroethane
<5.00 ug/kg wet
5.00
ug/kg wet
1,2-Dichloropropane
<5.00 ug/kg wet
5.00
ug/kg wet
1,3,5-Trimethyl benzene
<5.00 ug/kg wet
5.00
ug/kg wet
1,3-Dichlorobenzene
<5.00 ug/kg wet
5.00
ug/kg wet
1,3-Dichloropropane
<5.00 ug/kg wet
5.00
ug/kg wet
1,4-Dichlorobenzene
<5.00 ug/kg wet
5.00
ug/kg wet
2,2-Dichloropropane
<5.00 ug/kg wet
5.00
ug/kg wet
2-Butanone (MEK)
<5.00 ug/kg wet
5.00
ug/kg wet
2-Chlorotoluene
<5.00 ug/kg wet
5.00
ug/kg wet
2-Hexanone (MBK)
<5.00 ug/kg wet
5.00
ug/kg wet
4-Chlorotoluene
<5.00 ug/kg wet
5.00
ug/kg wet
4-Isopropyltoluene
<5.00 ug/kg wet
5.00
ug/kg wet
4-Methyl-2-pentanone (MIBK)
<5.00 ug/kg wet
5.00
ug/kg wet
Acetone
<10.0 ug/kg wet
10.0
ug/kg wet
Benzene
<5.00 ug/kg wet
5.00
ug/kg wet
Bromobenzene
<5.00 ug/kg wet
5.00
ug/kg wet
Bromochloromethane
<5.00 ug/kg wet
5.00
ug/kg wet
Page 55 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Volatile Organic Compounds by GCMS - Quality Control
Enthalpy Analytical
Reporting Spike Source %REC RPD
Analyte Result Limit Units Level Result %REC Limits RPD Limit Qual
Batch BFH0110 - SW5035-MS
Blank (BFH0110-BLK1)
Prepared & Analyzed: 08/03/2022
Bromodichloromethane
<5.00 ug/kg wet
5.00
ug/kg wet
Bromoform
<5.00 ug/kg wet
5.00
ug/kg wet
Bromomethane
<5.00 ug/kg wet
5.00
ug/kg wet
Carbon disulfide
<5.00 ug/kg wet
5.00
ug/kg wet
Carbon tetrachloride
<5.00 ug/kg wet
5.00
ug/kg wet
Chlorobenzene
<5.00 ug/kg wet
5.00
ug/kg wet
Chloroethane
<5.00 ug/kg wet
5.00
ug/kg wet
Chloroform
<5.00 ug/kg wet
5.00
ug/kg wet
Chloromethane
<5.00 ug/kg wet
5.00
ug/kg wet
cis-1,2-Dichloroethylene
<5.00 ug/kg wet
5.00
ug/kg wet
cis-1,3-Dichloropropene
<5.00 ug/kg wet
5.00
ug/kg wet
Dibromochloromethane
<5.00 ug/kg wet
5.00
ug/kg wet
Dibromomethane
<5.00 ug/kg wet
5.00
ug/kg wet
Dichlorodifluoromethane
<5.00 ug/kg wet
5.00
ug/kg wet
Di -isopropyl ether (DIPE)
<5.00 ug/kg wet
5.00
ug/kg wet
Ethylbenzene
<5.00 ug/kg wet
5.00
ug/kg wet
Hexachlorobutadiene
<5.00 ug/kg wet
5.00
ug/kg wet
lodomethane
<5.00 ug/kg wet
5.00
ug/kg wet
Isopropylbenzene
<5.00 ug/kg wet
5.00
ug/kg wet
m+p-Xylenes
<5.00 ug/kg wet
5.00
ug/kg wet
Methylene chloride
<5.00 ug/kg wet
5.00
ug/kg wet
Methyl-t-butyl ether (MTBE)
<5.00 ug/kg wet
5.00
ug/kg wet
Naphthalene
<5.00 ug/kg wet
5.00
ug/kg wet
n-Butylbenzene
<5.00 ug/kg wet
5.00
ug/kg wet
n-Propylbenzene
<5.00 ug/kg wet
5.00
ug/kg wet
o-Xylene
<5.00 ug/kg wet
5.00
ug/kg wet
sec-Butylbenzene
<5.00 ug/kg wet
5.00
ug/kg wet
Styrene
<5.00 ug/kg wet
5.00
ug/kg wet
tert-Butylbenzene
<5.00 ug/kg wet
5.00
ug/kg wet
Tetrachloroethylene (PCE)
<5.00 ug/kg wet
5.00
ug/kg wet
Toluene
<5.00 ug/kg wet
5.00
ug/kg wet
Page 56 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Volatile Organic Compounds by GCMS - Quality Control
Enthalpy Analytical
Reporting Spike Source %REC RPD
Analyte Result Limit Units Level Result %REC Limits RPD Limit Qual
Batch BFH0110 - SW5035-MS
Blank (BFH0110-BLK1)
Prepared & Analyzed: 08/03/2022
trans-1,2-Dichloroethylene
<5.00 ug/kg wet
5.00
ug/kg wet
trans-1,3-Dichloropropene
<5.00 ug/kg wet
5.00
ug/kg wet
Trichloroethylene
<5.00 ug/kg wet
5.00
ug/kg wet
Trichlorofluoromethane
<5.00 ug/kg wet
5.00
ug/kg wet
Vinyl acetate
<10.0 ug/kg wet
10.0
ug/kg wet
Vinyl chloride
<5.00 ug/kg wet
5.00
ug/kg wet
Xylenes, Total
<15.0 ug/kg wet
15.0
ug/kg wet
- - - - - - - - - - - - - -
Surr 1,2-Dichloroethane-d4 (Surr)
- - - - - - - - - -
49.9
- - -
- - - -
ug/L
- - - - - - - - - - - - - - - - - - - - - - - - - - - -
50.0 99.8 80-120
Surr 4-Bromofluorobenzene (Surr)
45.5
ug/L
50.0 91.0 85-120
Surr Dibromofluoromethane (Surr)
50.7
ug/L
50.0 101 80-130
Surr. Toluene-d8 (Surr)
52.6
ug/L
50.0 105 85-115
LCS (BFH0110-BS1)
Prepared &Analyzed: 08/03/2022
1,1,1,2-Tetrachloroethane
41.8 ug/L
5
ug/L
50.0
ug/L
83.5
85-132 L
1,1,1-Trichloroethane
46.4 ug/L
5
ug/L
50.0
ug/L
92.9
70-135
1,1,2,2-Tetrachloroethane
49.8 ug/L
5
ug/L
50.0
ug/L
99.7
55-130
1,1,2-Trichloroethane
48.3 ug/L
5
ug/L
50.0
ug/L
96.5
60-125
1,1-Dichloroethane
46.8 ug/L
5
ug/L
50.0
ug/L
93.6
70-136
1,1-Dichloroethylene
39.5 ug/L
5
ug/L
50.0
ug/L
79.1
65-135
1,1-Dichloropropene
44.0 ug/L
5
ug/L
50.0
ug/L
87.9
70-135
1,2,3-Trichlorobenzene
49.6 ug/L
5
ug/L
50.0
ug/L
99.2
60-135
1,2,3-Trichloropropane
50.9 ug/L
5
ug/L
50.0
ug/L
102
65-130
1,2,4-Trichlorobenzene
54.6 ug/L
5
ug/L
50.0
ug/L
109
65-130
1,2,4-Trimethyl benzene
54.8 ug/L
5
ug/L
50.0
ug/L
110
65-135
1,2-Dibromo-3-chloropropane (DBCP)
53.9 ug/L
5
ug/L
50.0
ug/L
108
40-135
1,2-Dibromoethane (EDB)
52.7 ug/L
5
ug/L
50.0
ug/L
105
70-125
1,2-Dichlorobenzene
51.8 ug/L
5
ug/L
50.0
ug/L
104
75-120
1,2-Dichloroethane
45.8 ug/L
5
ug/L
50.0
ug/L
91.7
70-135
1,2-Dichloropropane
45.4 ug/L
5
ug/L
50.0
ug/L
90.8
70-120
1,3,5-Trimethyl benzene
49.8 ug/L
5
ug/L
50.0
ug/L
99.7
65-135
1,3-Dichlorobenzene
53.0 ug/L
5
ug/L
50.0
ug/L
106
70-125
1,3-Dichloropropane
47.1 ug/L
5
ug/L
50.0
ug/L
94.2
75-125
Page 57 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Volatile Organic Compounds by GCMS - Quality Control
Enthalpy Analytical
Reporting Spike Source %REC RPD
Analyte Result Limit Units Level Result %REC Limits RPD Limit Qual
Batch 13FH0110 - SW5035-MS
LCS (BFH0110-BS1)
Prepared &Analyzed: 08/03/2022
1,4-Dichlorobenzene
55.0 ug/L
5
ug/L
50.0
ug/L
110
70-125
2,2-Dichloropropane
45.4 ug/L
5
ug/L
50.0
ug/L
90.8
65-135
2-Butanone (MEK)
41.4 ug/L
5
ug/L
50.0
ug/L
82.7
30-160
2-Chlorotoluene
53.9 ug/L
5
ug/L
50.0
ug/L
108
70-130
2-Hexanone (MBK)
47.8 ug/L
5
ug/L
50.0
ug/L
95.5
45-145
4-Chlorotoluene
51.4 ug/L
5
ug/L
50.0
ug/L
103
75-125
4-Isopropyltoluene
55.1 ug/L
5
ug/L
50.0
ug/L
110
75-135
4-Methyl-2-pentanone (MIBK)
43.0 ug/L
5
ug/L
50.0
ug/L
86.0
45-145
Acetone
59.8 ug/L
10
ug/L
50.0
ug/L
120
20-160
Benzene
46.6 ug/L
5
ug/L
50.0
ug/L
93.2
75-125
Bromobenzene
53.2 ug/L
5
ug/L
50.0
ug/L
106
65-120
Bromochloromethane
49.1 ug/L
5
ug/L
50.0
ug/L
98.3
70-125
Bromodichloromethane
44.6 ug/L
5
ug/L
50.0
ug/L
89.1
70-130
Bromoform
50.2 ug/L
5
ug/L
50.0
ug/L
100
55-135
Bromomethane
34.8 ug/L
5
ug/L
50.0
ug/L
69.6
30-160
Carbon disulfide
50.9 ug/L
5
ug/L
50.0
ug/L
102
45-160
Carbon tetrachloride
42.8 ug/L
5
ug/L
50.0
ug/L
85.6
65-135
Chlorobenzene
49.6 ug/L
5
ug/L
50.0
ug/L
99.1
75-125
Chloroethane
38.8 ug/L
5
ug/L
50.0
ug/L
77.5
40-155
Chloroform
49.0 ug/L
5
ug/L
50.0
ug/L
98.0
70-125
Chloromethane
36.3 ug/L
5
ug/L
50.0
ug/L
72.6
50-130
cis-1,2-Dichloroethylene
46.4 ug/L
5
ug/L
50.0
ug/L
92.8
65-125
cis-1,3-Dichloropropene
38.7 ug/L
5
ug/L
50.0
ug/L
77.5
70-125
Dibromochloromethane
48.0 ug/L
5
ug/L
50.0
ug/L
96.0
65-130
Dibromomethane
45.8 ug/L
5
ug/L
50.0
ug/L
91.7
75-130
Dichlorodifluoromethane
20.8 ug/L
5
ug/L
50.0
ug/L
41.5
35-135
Ethylbenzene
51.7 ug/L
5
ug/L
50.0
ug/L
103
75-125
Hexachlorobutadiene
44.3 ug/L
5
ug/L
50.0
ug/L
88.6
55-140
Isopropylbenzene
48.2 ug/L
5
ug/L
50.0
ug/L
96.5
75-130
m+p-Xylenes
100 ug/L
5
ug/L
100
ug/L
100
80-125
Methylene chloride
48.6 ug/L
5
ug/L
50.0
ug/L
97.3
55-140
Page 58 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Volatile Organic Compounds by GCMS - Quality Control
Enthalpy Analytical
Reporting Spike Source %REC RPD
Analyte Result Limit Units Level Result %REC Limits RPD Limit Qual
Batch BFH0110 - SW5035-MS
LCS (BFH0110-BS1)
Prepared &Analyzed: 08/03/2022
Methyl-t-butyl ether (MTBE)
37.9 ug/L
5
ug/L
50.0
ug/L
75.8
65-125
Naphthalene
49.6 ug/L
5
ug/L
50.0
ug/L
99.3
40-125
n-Butylbenzene
53.9 ug/L
5
ug/L
50.0
ug/L
108
65-140
n-Propylbenzene
52.0 ug/L
5
ug/L
50.0
ug/L
104
65-135
o-Xylene
52.3 ug/L
5
ug/L
50.0
ug/L
105
75-125
sec-Butylbenzene
55.0 ug/L
5
ug/L
50.0
ug/L
110
65-130
Styrene
51.6 ug/L
5
ug/L
50.0
ug/L
103
75-125
tert-Butylbenzene
55.0 ug/L
5
ug/L
50.0
ug/L
110
65-130
Tetrachloroethylene (PCE)
76.0 ug/L
5
ug/L
50.0
ug/L
152
48.1-219
Toluene
47.7 ug/L
5
ug/L
50.0
ug/L
95.4
70-125
trans-1,2-Dichloroethylene
44.5 ug/L
5
ug/L
50.0
ug/L
89.0
65-135
trans-1,3-Dichloropropene
44.7 ug/L
5
ug/L
50.0
ug/L
89.3
65-125
Trichloroethylene
48.9 ug/L
5
ug/L
50.0
ug/L
97.8
75-125
Trichlorofluoromethane
42.4 ug/L
5
ug/L
50.0
ug/L
84.8
25-185
Vinyl chloride
37.3 ug/L
5
ug/L
50.0
ug/L
74.6
60-125
- - - - - - - - - - - - - - - -
Surr. 1,2-Dichloroethane-d4 (Surr)
- - - - - - - -
58.9
- - - -
- - -
ug/L
- - -
50.0
- - - -
ug/L
- - - -
118
- - - - - - - - - - - - - - - - -
80-120
Surr. 4-Bromofluorobenzene (Surr)
49.0
ug/L
50.0
ug/L
98.0
85-120
Surr. Dibromofluoromethane (Surr)
51.6
ug/L
50.0
ug/L
103
80-130
Surr. Toluene-d8 (Surr)
48.3
ug/L
50.0
ug/L
96.6
85-115
Duplicate (BFH0110-DUP1)
Source: 22H0122-01
Prepared &Analyzed: 08/08/2022
1,1,1,2-Tetrachloroethane
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
1,1,1-Trichloroethane
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
1,1,2,2-Tetrachloroethane
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
1,1,2-Trichloroethane
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
1,1-Dichloroethane
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
1,1-Dichloroethylene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
1,1-Dichloropropene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
1,2,3-Trichlorobenzene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
1,2,3-Trichloropropane
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
1,2,4-Trichlorobenzene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
1,2,4-Trimethyl benzene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Page 59 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Volatile Organic Compounds by GCMS - Quality Control
Enthalpy Analytical
Reporting Spike Source %REC RPD
Analyte Result Limit Units Level Result %REC Limits RPD Limit Qual
Batch 13FH0110 - SW5035-MS
Duplicate (113FH0110-D1.1131)
Source: 22H0122-01
Prepared &Analyzed: 08/08/2022
1,2-Dibromo-3-chloropropane (DBCP)
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
1,2-Dibromoethane (EDB)
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
1,2-Dichlorobenzene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
1,2-Dichloroethane
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
1,2-Dichloropropane
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
1,3,5-Trimethyl benzene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
1,3-Dichlorobenzene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
1,3-Dichloropropane
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
1,4-Dichlorobenzene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
2,2-Dichloropropane
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30 C
2-Butanone (MEK)
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
2-Chlorotoluene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
2-Hexanone (MBK)
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
4-Chlorotoluene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
4-Isopropyltoluene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
4-Methyl-2-pentanone (MIBK)
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Acetone
119 ug/kg dry
11.3
ug/kg dry
132 ug/kg dry
10.3
30
Benzene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Bromobenzene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Bromochloromethane
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Bromodichloromethane
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Bromoform
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Bromomethane
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Carbon disulfide
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Carbon tetrachloride
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Chlorobenzene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Chloroethane
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Chloroform
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Chloromethane
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
cis-1,2-Dichloroethylene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
cis-1,3-Dichloropropene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Page 60 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road Richmond, Virginia 23230 Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Volatile Organic Compounds by GCMS - Quality Control
Enthalpy Analytical
Reporting Spike Source %REC RPD
Analyte Result Limit Units Level Result %REC Limits RPD Limit Qual
Batch BFHO110 - SW5035-MS
Duplicate (BFH0110-DUP1)
Source: 22H0122-01
Prepared &Analyzed: 08/08/2022
Dibromochloromethane
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Dibromomethane
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Dichlorodifluoromethane
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Di -isopropyl ether (DIPE)
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Ethylbenzene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Hexachlorobutadiene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
lodomethane
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Isopropylbenzene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
m+p-Xylenes
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Methylene chloride
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Methyl-t-butyl ether (MTBE)
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Naphthalene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
n-Butylbenzene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
n-Propylbenzene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
o-Xylene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
sec-Butylbenzene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Styrene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
tert-Butyl benzene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Tetrachloroethylene (PCE)
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Toluene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
trans- 1,2-Dichloroethylene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
trans- 1,3-Dichloropropene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Trichloroethylene
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Trichlorofluoromethane
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Vinyl acetate
<11.3 ug/kg dry
11.3
ug/kg dry
<11.3 ug/kg
NA
30
Vinyl chloride
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
Xylenes, Total
<16.9 ug/kg dry
16.9
ug/kg dry
<16.9 ug/kg
NA
30
Tetrahydrofuran
<11.3 ug/kg dry
11.3
ug/kg dry
<11.3 ug/kg
NA
30
Diethyl ether
<5.63 ug/kg dry
5.63
ug/kg dry
<5.63 ug/kg
NA
30
- - - - - - - - - - - - - -
Surr 1,2-Dichloroethane-d4 (Surr)
- - - - - - - - - -
65.9
- - -
- - - -
ug/L
- - - - - - - - - - - - - - - -
50.0 ug/L 132 80-120
- - -
- - - - - - - - -
S
Surr 4-Bromofluorobenzene (Surr)
47.1
ug/L
50.0 ug/L 94.2 85-120
Page 61 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Volatile Organic Compounds by GCMS - Quality Control
Enthalpy Analytical
Reporting Spike Source %REC RPD
malyte Result Limit Units Level Result %REC Limits RPD Limit Qual
Batch BFH0110 - SW5035-MS
Duplicate (BFH0110-DUP1) Source: 22H0122-01 Prepared &Analyzed: 08/08/2022
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Surr: Dibromofluoromethane (Surr) 53.5 ug/L 50.0 ug/L 107 80-130
Surr.- Toluene-d8 (Surr) 49.2 ug/L 50.0 ug/L 98.5 85-115
Page 62 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Semivolatile Organic Compounds by GCMS - Quality Control
Enthalpy Analytical
Reporting Spike Source %REC RPD
Analyte Result Limit Units Level Result %REC Limits RPD Limit Qual
Batch BFH0127 - SW3550C/EPA600-MS
Blank (BFH0127-BLK1)
Prepared: 08/03/2022 Analyzed: 08/04/2022
1,2,4,5-Tetrachlorobenzene
<83.3 ug/kg wet
83.3
ug/kg wet
1,2,4-Trichlorobenzene
<83.3 ug/kg wet
83.3
ug/kg wet
1,2-Dichlorobenzene
<83.3 ug/kg wet
83.3
ug/kg wet
1,2-Diphenylhydrazine
<83.3 ug/kg wet
83.3
ug/kg wet
1,3-Dichlorobenzene
<83.3 ug/kg wet
83.3
ug/kg wet
1,4-Dichlorobenzene
<83.3 ug/kg wet
83.3
ug/kg wet
1-Chloronaphthalene
<83.3 ug/kg wet
83.3
ug/kg wet
1-Naphthylamine
<83.3 ug/kg wet
83.3
ug/kg wet
2,3,4,6-Tetrachlorophenol
<83.3 ug/kg wet
83.3
ug/kg wet
2,4,5-Trichlorophenol
<83.3 ug/kg wet
83.3
ug/kg wet
2,4,6-Trichlorophenol
<83.3 ug/kg wet
83.3
ug/kg wet
2,4-Dichlorophenol
<83.3 ug/kg wet
83.3
ug/kg wet
2,4-Dimethylphenol
<83.3 ug/kg wet
83.3
ug/kg wet
2,4-Dinitrophenol
<83.3 ug/kg wet
83.3
ug/kg wet
2,4-Dinitrotoluene
<83.3 ug/kg wet
83.3
ug/kg wet
2,6-Dichlorophenol
<83.3 ug/kg wet
83.3
ug/kg wet
2,6-Dinitrotoluene
<83.3 ug/kg wet
83.3
ug/kg wet
2-Chloronaphthalene
<83.3 ug/kg wet
83.3
ug/kg wet
2-Chlorophenol
<83.3 ug/kg wet
83.3
ug/kg wet
2-Methyl naphthalene
<83.3 ug/kg wet
83.3
ug/kg wet
2-Naphthylamine
<83.3 ug/kg wet
83.3
ug/kg wet
2-Nitroaniline
<83.3 ug/kg wet
83.3
ug/kg wet
2-Nitrophenol
<83.3 ug/kg wet
83.3
ug/kg wet
3,3'-Dichlorobenzidine
<83.3 ug/kg wet
83.3
ug/kg wet
3-Methylcholanthrene
<83.3 ug/kg wet
83.3
ug/kg wet
3-Nitroaniline
<83.3 ug/kg wet
83.3
ug/kg wet
4,6-Dinitro-2-methylphenol
<83.3 ug/kg wet
83.3
ug/kg wet
4-Aminobiphenyl
<83.3 ug/kg wet
83.3
ug/kg wet
4-Bromophenyl phenyl ether
<83.3 ug/kg wet
83.3
ug/kg wet
4-Chloroaniline
<83.3 ug/kg wet
83.3
ug/kg wet
4-Chlorophenyl phenyl ether
<83.3 ug/kg wet
83.3
ug/kg wet
Page 63 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Semivolatile Organic Compounds by GCMS - Quality Control
Enthalpy Analytical
Reporting Spike Source %REC RPD
Analyte Result Limit Units Level Result %REC Limits RPD Limit Qual
Batch BFHO127 - SW3550C/EPA600-MS
Blank (BFH0127-BLK1)
Prepared: 08/03/2022 Analyzed: 08/04/2022
4-Nitroaniline
<83.3 ug/kg wet
83.3
ug/kg wet
4-Nitrophenol
<83.3 ug/kg wet
83.3
ug/kg wet
7,12-Dimethylbenz (a) anthracene
<83.3 ug/kg wet
83.3
ug/kg wet
Acenaphthene
<83.3 ug/kg wet
83.3
ug/kg wet
Acenaphthylene
<83.3 ug/kg wet
83.3
ug/kg wet
Acetophenone
<83.3 ug/kg wet
83.3
ug/kg wet
Aniline
<83.3 ug/kg wet
83.3
ug/kg wet
Anthracene
<83.3 ug/kg wet
83.3
ug/kg wet
Benzidine
<83.3 ug/kg wet
83.3
ug/kg wet
Benzo (a) anthracene
<83.3 ug/kg wet
83.3
ug/kg wet
Benzo (a) pyrene
<83.3 ug/kg wet
83.3
ug/kg wet
Benzo (b) fluoranthene
<83.3 ug/kg wet
83.3
ug/kg wet
Benzo (g,h,i) perylene
<83.3 ug/kg wet
83.3
ug/kg wet
Benzo (k) fluoranthene
<83.3 ug/kg wet
83.3
ug/kg wet
Benzoic acid
<83.3 ug/kg wet
83.3
ug/kg wet
Benzyl alcohol
<83.3 ug/kg wet
83.3
ug/kg wet
bis (2-Chloroethoxy) methane
<83.3 ug/kg wet
83.3
ug/kg wet
bis (2-Chloroethyl) ether
<83.3 ug/kg wet
83.3
ug/kg wet
2,2'-Oxybis (1-chloropropane)
<83.3 ug/kg wet
83.3
ug/kg wet
bis (2-Ethylhexyl) phthalate
<83.3 ug/kg wet
83.3
ug/kg wet
Butyl benzyl phthalate
<83.3 ug/kg wet
83.3
ug/kg wet
Chrysene
<83.3 ug/kg wet
83.3
ug/kg wet
Dibenz (a,h) anthracene
<83.3 ug/kg wet
83.3
ug/kg wet
Dibenz (aJ) acridine
<83.3 ug/kg wet
83.3
ug/kg wet
Dibenzofuran
<83.3 ug/kg wet
83.3
ug/kg wet
Diethyl phthalate
<83.3 ug/kg wet
83.3
ug/kg wet
Dimethyl phthalate
<83.3 ug/kg wet
83.3
ug/kg wet
Di-n-butyl phthalate
<83.3 ug/kg wet
83.3
ug/kg wet
Di-n-octyl phthalate
<83.3 ug/kg wet
83.3
ug/kg wet
Diphenylamine
<83.3 ug/kg wet
83.3
ug/kg wet
Ethyl methanesulfonate
<83.3 ug/kg wet
83.3
ug/kg wet
Page 64 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Semivolatile Organic Compounds by GCMS - Quality Control
Enthalpy Analytical
Reporting Spike Source %REC RPD
Analyte Result Limit Units Level Result %REC Limits RPD Limit Qual
Batch BFHO127 - SW3550C/EPA600-MS
Blank (BFH0127-BLK1)
Prepared: 08/03/2022 Analyzed: 08/04/2022
Fluoranthene
<83.3 ug/kg wet
83.3
ug/kg wet
Fluorene
<83.3 ug/kg wet
83.3
ug/kg wet
Hexachlorobenzene
<83.3 ug/kg wet
83.3
ug/kg wet
Hexachlorobutadiene
<83.3 ug/kg wet
83.3
ug/kg wet
Hexachlorocyclopentadiene
<83.3 ug/kg wet
83.3
ug/kg wet
Hexachloroethane
<83.3 ug/kg wet
83.3
ug/kg wet
Indeno (1,2,3-cd) pyrene
<83.3 ug/kg wet
83.3
ug/kg wet
Isophorone
<83.3 ug/kg wet
83.3
ug/kg wet
m+p-Cresols
<83.3 ug/kg wet
83.3
ug/kg wet
Methyl methanesulfonate
<83.3 ug/kg wet
83.3
ug/kg wet
Naphthalene
<83.3 ug/kg wet
83.3
ug/kg wet
Nitrobenzene
<83.3 ug/kg wet
83.3
ug/kg wet
n-Nitrosodimethylamine
<83.3 ug/kg wet
83.3
ug/kg wet
n-Nitrosodi-n-butylamine
<83.3 ug/kg wet
83.3
ug/kg wet
n-Nitrosodi-n-propylamine
<83.3 ug/kg wet
83.3
ug/kg wet
n-Nitrosodiphenylamine
<83.3 ug/kg wet
83.3
ug/kg wet
n-Nitrosopiperidine
<83.3 ug/kg wet
83.3
ug/kg wet
o+m+p-Cresols
<83.3 ug/kg wet
83.3
ug/kg wet
o-Cresol
<83.3 ug/kg wet
83.3
ug/kg wet
p-(Dimethylamino) azobenzene
<83.3 ug/kg wet
83.3
ug/kg wet
p-Chloro-m-cresol
<83.3 ug/kg wet
83.3
ug/kg wet
Pentachloronitrobenzene (quintozene)
<83.3 ug/kg wet
83.3
ug/kg wet
Pentachlorophenol
<83.3 ug/kg wet
83.3
ug/kg wet
Phenacetin
<83.3 ug/kg wet
83.3
ug/kg wet
Phenanthrene
<83.3 ug/kg wet
83.3
ug/kg wet
Phenol
<83.3 ug/kg wet
83.3
ug/kg wet
Pronamide
<83.3 ug/kg wet
83.3
ug/kg wet
Pyrene
<83.3 ug/kg wet
83.3
ug/kg wet
Pyridine
<83.3 ug/kg wet
83.3
ug/kg wet
- - - - - - - - - - - - - - -
Surr. 2,4,6-Tribromophenol (Surr)
- - - - - - - - -
2770
- - -
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
ug/kg wet 3310 83.7 15-96
Surr. 2-Fluorobiphenyl (Surr)
1680
ug/kg wet 1660 102 19-105
Page 65 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Semivolatile Organic Compounds by GCMS - Quality Control
Enthalpy Analytical
Reporting Spike Source %REC RPD
Analyte Result Limit Units Level Result %REC Limits RPD Limit Qual
Batch BFHO127 - SW3550C/EPA600-MS
Blank (BFH0127-BLK1)
Prepared: 08/03/2022 Analyzed: 08/04/2022
- - - - - - - - - - - - - - -
Surr.- 2-Fluorophenol (Surr)
- - - - - - - - - -
2230
- - - - - -
ug/kg wet
- - - - - -
3310
- - - - -
67.3
- - - - - - - - - - - - - - - - -
12-95
Surr.- Nitrobenzene-d5 (Surr)
1410
ug/kg wet
1660
85.4
21-100
Surr. Phenol-d5 (Surr)
2810
ug/kg wet
3310
84.8
13-100
Surr p-Terphenyl-d14 (Surr)
1480
ug/kg wet
1660
89.4
25-125
LCS (BFH0127-BS1)
Prepared: 08/03/2022Analyzed: 08/04/2022
1,2,4-Trichlorobenzene
2050 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
128
70-130
1,2-Dichlorobenzene
1900 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
119
70-130
1,3-Dichlorobenzene
1780 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
ill
70-130
1,4-Dichlorobenzene
1940 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
121
70-130
2,4,6-Trichlorophenol
1650 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
103
20-115
2,4-Dichlorophenol
2040 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
127
20-111
L
2,4-Dimethylphenol
1960 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
122
20-110
L
2,4-Dinitrophenol
2460 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
153
10-169
2,4-Dinitrotoluene
1920 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
120
21-125
2,6-Dinitrotoluene
1760 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
110
15-140
2-Chloronaphthalene
1800 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
112
22-105
L
2-Chlorophenol
1700 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
106
15-107
2-Nitrophenol
1790 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
112
20-115
3,3'-Dichlorobenzidine
1310 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
81.6
10-110
4,6-Dinitro-2-methylphenol
2340 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
146
40-130
L
4-Bromophenyl phenyl ether
1800 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
112
20-114
4-Chlorophenyl phenyl ether
1680 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
105
15-110
4-Nitrophenol
2670 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
166
0-125
L
Acenaphthene
1930 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
120
24-110
L
Acenaphthylene
1900 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
119
25-106
L
Acetophenone
1450 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
90.7
0-200
Anthracene
2120 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
132
25-117
L
Benzo (a) anthracene
1750 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
109
25-127
Benzo (a) pyrene
2170 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
135
18-127
L
Benzo (b) fluoranthene
2430 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
151
20-132
L
Benzo (g,h,i) perylene
1850 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
115
10-136
Page 66 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Semivolatile Organic Compounds by GCMS - Quality Control
Enthalpy Analytical
Reporting Spike Source %REC RPD
Analyte Result Limit Units Level Result %REC Limits RPD Limit Qual
Batch BFHO127 - SW3550C/EPA600-MS
LCS (BFH0127-BS1)
Prepared: 08/03/2022 Analyzed: 08/04/2022
Benzo (k) fluoranthene
2560 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
160
14-136
L
bis (2-Chloroethoxy) methane
1720 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
108
20-100
L
bis (2-Chloroethyl) ether
1360 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
85.1
13-100
2,2'-Oxybis (1-chloropropane)
1610 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
100
40-125
bis (2-Ethylhexyl) phthalate
2070 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
129
18-137
Butyl benzyl phthalate
1680 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
105
20-141
Chrysene
1690 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
105
21-141
Dibenz (a,h) anthracene
2130 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
133
10-142
Diethyl phthalate
2080 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
130
20-120
L
Dimethyl phthalate
1850 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
116
23-109
L
Di-n-butyl phthalate
3020 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
188
18-136
L
Di-n-octyl phthalate
2500 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
156
10-160
Fluoranthene
3010 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
188
19-138
L
Fluorene
2020 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
126
25-114
L
Hexachlorobenzene
1780 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
111
20-113
Hexachlorobutadiene
2510 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
157
25-125
L
Hexachlorocyclopentadiene
1250 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
77.8
10-125
Hexachloroethane
1830 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
114
25-125
Indeno (1,2,3-cd) pyrene
2320 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
145
10-136
L
Isophorone
1160 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
72.6
10-110
Naphthalene
2160 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
135
18-109
L
Nitrobenzene
1760 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
110
18-104
L
n-Nitrosodimethylamine
1010 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
63.2
18-110
n-Nitrosodi-n-propylamine
1670 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
104
12-102
L
n-Nitrosodiphenylamine
1540 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
96.4
12-97
p-Chloro-m-cresol
1770 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
110
24-120
Pentachlorophenol
1790 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
111
10-116
Phenanthrene
2270 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
142
25-122
L
Phenol
1490 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
92.2
12-115
Pyrene
1380 ug/kg wet
83.3
ug/kg wet
1600
ug/kg wet
86.3
17-159
Pyridine
- - - - - - - - - - - - - -
1040 ug/kg wet
- - - - - - - - - -
83.3
- - -
ug/kg wet
- - - -
1600
- - -
ug/kg wet
- - - - -
64.9
- - -
0-200
- - - - - - - - -
- - - - - - - -
Page 67 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Semivolatile Organic Compounds by GCMS - Quality Control
Enthalpy Analytical
Reporting Spike Source %REC RPD
Analyte Result Limit Units Level Result %REC Limits RPD Limit Qual
Batch BFHO127 - SW3550C/EPA600-MS
LCS (BFH0127-BS1)
Prepared: 08/03/2022 Analyzed: 08/04/2022
- - - - - - - - - - - - - - - -
Surr:2,4,6-Tribromophenol (Surr)
- - - - - - - - -
3570
- - - - - -
ug/kg wet
- - -
3210
- - - - -
ug/kg wet
- - -
ill
- - - - - - - - -
15-96
- - - - - - - -
S
Surr.- 2-Fluorobiphenyl (Surr)
1850
ug/kg wet
1600
ug/kg wet
116
19-105
S
Surr. 2-Fluorophenol (Surr)
2690
ug/kg wet
3210
ug/kg wet
84.1
12-95
Surr Nitrobenzene-d5 (Surr)
1650
ug/kg wet
1600
ug/kg wet
103
21-100
S
Surr Phenol-d5 (Surr)
3420
ug/kg wet
3210
ug/kg wet
107
13-100
S
Surr p-Terphenyl-d14 (Surr)
1520
ug/kg wet
1600
ug/kg wet
95.1
25-125
Matrix Spike (BFH0127-MS1)
Source: 22G1231-43
Prepared: 08/03/2022 Analyzed: 08/04/2022
1,2,4-Trichlorobenzene
960 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
49.5
70-130
M
1,2-Dichlorobenzene
680 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
35.1
70-130
M
1,3-Dichlorobenzene
742 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
38.3
70-130
M
1,4-Dichlorobenzene
806 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
41.6
70-130
M
2,4,6-Trichlorophenol
1050 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
54.1
10-115
2,4-Dichlorophenol
1080 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
55.7
10-128
2,4-Dimethyl phenol
1010 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
52.0
10-121
2,4-Dinitrophenol
2260 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
117
10-228
2,4-Dinitrotoluene
1470 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
76.0
10-141
2,6-Dinitrotoluene
1180 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
61.0
15-140
2-Chloronaphthalene
961 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
49.6
10-108
2-Chlorophenol
885 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
45.6
10-117
2-Nitrophenol
1010 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
51.8
10-131
3,3'-Dichlorobenzidine
841 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
43.4
10-110
4,6-Dinitro-2-methylphenol
2150 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
ill
10-205
4-Bromophenyl phenyl ether
1120 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
57.8
10-119
4-Chlorophenyl phenyl ether
1090 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
56.2
15-110
4-Nitrophenol
2490 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
128
0-125
M
Acenaphthene
1050 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
54.1
10-124
Acenaphthylene
1060 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
54.8
10-118
Acetophenone
800 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
41.2
0-200
Anthracene
1480 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
76.2
10-143
Benzo (a) anthracene
1360 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
70.2
10-169
Benzo (a) pyrene
1590 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
82.1
10-149
Page 68 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Semivolatile Organic Compounds by GCMS - Quality Control
Enthalpy Analytical
Reporting Spike Source %REC RPD
Analyte Result Limit Units Level Result %REC Limits RPD Limit Qual
Batch BFHO127 - SW3550C/EPA600-MS
Matrix Spike (BFH0127-MS1)
Source: 22G1231-43
Prepared: 08/03/2022 Analyzed: 08/04/2022
Benzo (b) fluoranthene
1930 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
99.4
10-150
Benzo (g,h,i) perylene
676 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
34.8
10-123
Benzo (k) fluoranthene
2020 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
104
10-211
bis (2-Chloroethoxy) methane
845 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
43.6
10-108
bis (2-Chloroethyl) ether
672 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
34.7
10-100
2,2'-Oxybis (1-chloropropane)
748 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
38.6
40-125 M
bis (2-Ethylhexyl) phthalate
1650 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
85.0
10-210
Butyl benzyl phthalate
1370 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
70.8
10-165
Chrysene
1260 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
65.1
10-172
Dibenz (a,h) anthracene
951 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
49.0
10-128
Diethyl phthalate
1470 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
76.0
10-120
Dimethyl phthalate
1200 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
62.0
10-125
Di-n-butyl phthalate
1590 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
82.0
10-133
Di-n-octyl phthalate
2670 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
137
10-196
Fluoranthene
2110 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
109
10-271
Fluorene
1320 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
67.8
10-124
Hexachlorobenzene
1140 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
58.9
10-125
Hexachlorobutadiene
1120 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
58.0
10-125
Hexachlorocyclopentadiene
366 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
18.9
10-125
Hexachloroethane
750 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
38.7
10-220
Indeno (1,2,3-cd) pyrene
1010 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
51.9
10-127
Isophorone
600 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
30.9
10-110
Naphthalene
1000 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
51.6
10-118
Nitrobenzene
975 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
50.3
10-126
n-Nitrosodimethylamine
434 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
22.4
10-110
n-Nitrosodi-n-propylamine
884 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
45.6
10-107
n-Nitrosodiphenylamine
1140 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
58.8
10-107
p-Chloro-m-cresol
1130 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
58.5
10-131
Pentachlorophenol
1420 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
73.1
10-151
Phenanthrene
1540 ug/kg dry
96.9
ug/kg dry
1940
<96.9 ug/kg
79.4
10-393
Phenol
757 ug/kg dry
96.9
ug/kg dry
1960
<96.9 ug/kg
38.7
10-133
Page 69 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Semivolatile Organic Compounds by GCMS - Quality Control
Enthalpy Analytical
Reporting Spike Source %REC RPD
Analyte Result Limit Units Level Result %REC Limits RPD Limit Qual
Batch BFHO127 - SW3550C/EPA600-MS
Matrix Spike (BFH0127-MS1)
Source: 22G1231-43
Prepared: 08/03/2022 Analyzed: 08/04/2022
Pyrene
1200 ug/kg dry
96.9 ug/kg dry
1940
<96.9 ug/kg
61.7
10-212
Pyridine
525 ug/kg dry
96.9 ug/kg dry
1940
<96.9 ug/kg
27.1
0-200
- - - - - - - - - - - - - -
Surr.- 2,4,6-Tribromophenol (Surr)
- - - - - - - - - -
2590
- - - - - - -
ug/kg dry
- - -
3880
- - - - -
ug/kg dry
- - -
66.7
- - - - - - - - - - - - - - - - -
15-96
Surr. 2-Fluorobiphenyl (Surr)
979
ug/kg dry
1940
ug/kg dry
50.5
19-105
Surr 2-Fluorophenol (Surr)
1590
ug/kg dry
3880
ug/kg dry
40.9
12-95
Surr Nitrobenzene-d5 (Surr)
951
ug/kg dry
1940
ug/kg dry
49.0
21-100
Surr Phenol-d5 (Surr)
1980
ug/kg dry
3880
ug/kg dry
51.0
13-100
Surr p-Terphenyl-d14 (Surr)
1380
ug/kg dry
1940
ug/kg dry
71.1
25-125
Matrix Spike Dup (BFH0127-MSD1)
Source: 22G1231-43
Prepared: 08/03/2022 Analyzed: 08/04/2022
1,2,4-Trichlorobenzene
1110 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
57.0
70-130
14.7
20 M
1,2-Dichlorobenzene
804 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
41.2
70-130
16.8
20 M
1,3-Dichlorobenzene
851 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
43.6
70-130
13.7
20 M
1,4-Dichlorobenzene
935 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
47.9
70-130
14.8
20 M
2,4,6-Trichlorophenol
1080 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
55.2
10-115
2.52
20
2,4-Dichlorophenol
1260 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
64.5
10-128
15.3
20
2,4-Dimethylphenol
1150 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
58.9
10-121
13.1
20
2,4-Dinitrophenol
2180 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
112
10-228
3.61
20
2,4-Dinitrotoluene
1360 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
69.6
10-141
8.11
20
2,6-Dinitrotoluene
1180 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
60.4
15-140
0.436
20
2-Chloronaphthalene
993 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
50.9
10-108
3.20
20
2-Chlorophenol
1040 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
53.3
10-117
16.2
20
2-Nitrophenol
1170 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
60.0
10-131
15.2
20
3,3'-Dichlorobenzidine
851 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
43.6
10-110
1.16
20
4,6-Dinitro-2-methylphenol
2010 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
103
10-205
6.40
20
4-Bromophenyl phenyl ether
1090 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
56.1
10-119
2.34
20
4-Chlorophenyl phenyl ether
1050 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
53.6
15-110
4.05
20
4-Nitrophenol
2150 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
110
0-125
14.4
20
Acenaphthene
1060 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
54.5
10-124
1.39
20
Acenaphthylene
1070 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
55.1
10-118
1.20
20
Acetophenone
924 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
47.3
0-200
14.4
20
Anthracene
1340 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
68.6
10-143
9.74
20
Page 70 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Semivolatile Organic Compounds by GCMS - Quality Control
Enthalpy Analytical
Reporting Spike Source %REC RPD
Analyte Result Limit Units Level Result %REC Limits RPD Limit Qual
Batch BFHO127 - SW3550C/EPA600-MS
Matrix Spike Dup (BFH0127-MSD1)
Source: 22G1231-43
Prepared: 08/03/2022 Analyzed: 08/04/2022
Benzo (a) anthracene
1190 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
60.8
10-169
13.6
20
Benzo (a) pyrene
1400 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
71.7
10-149
12.9
20
Benzo (b) fluoranthene
1700 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
87.0
10-150
12.7
20
Benzo (g,h,i) perylene
641 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
32.8
10-123
5.32
20
Benzo (k) fluoranthene
1600 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
82.0
10-211
23.2
20 P
bis (2-Chloroethoxy) methane
1000 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
51.3
10-108
17.0
20
bis (2-Chloroethyl) ether
769 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
39.4
10-100
13.3
20
2,2'-Oxybis (1-chloropropane)
861 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
44.1
40-125
14.0
20
bis (2-Ethylhexyl) phthalate
1440 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
74.0
10-210
13.2
20
Butyl benzyl phthalate
1200 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
61.5
10-165
13.4
20
Chrysene
1120 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
57.3
10-172
12.1
20
Dibenz (a,h) anthracene
894 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
45.8
10-128
6.10
20
Diethyl phthalate
1370 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
70.1
10-120
7.34
20
Dimethyl phthalate
1210 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
61.9
10-125
0.458
20
Di-n-butyl phthalate
1450 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
74.4
10-133
9.02
20
Di-n-octyl phthalate
2040 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
104
10-196
26.8
20 P
Fluoranthene
1830 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
93.8
10-271
14.1
20
Fluorene
1230 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
63.2
10-124
6.43
20
Hexachlorobenzene
1100 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
56.3
10-125
3.83
20
Hexachlorobutadiene
1290 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
65.9
10-125
13.4
20
Hexachlorocyclopentadiene
471 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
24.1
10-125
25.0
20 P
Hexachloroethane
865 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
44.3
10-220
14.2
20
Indeno (1,2,3-cd) pyrene
939 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
48.1
10-127
6.87
20
Isophorone
685 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
35.1
10-110
13.2
20
Naphthalene
1130 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
57.7
10-118
11.9
20
Nitrobenzene
1110 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
56.6
10-126
12.5
20
n-Nitrosodimethylamine
564 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
28.9
10-110
26.1
20 P
n-Nitrosodi-n-propylamine
1030 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
52.6
10-107
14.9
20
n-Nitrosodiphenylamine
1010 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
51.9
10-107
11.9
20
p-Chloro-m-cresol
1220 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
62.4
10-131
7.17
20
Pentachlorophenol
1330 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
68.0
10-151
6.60
20
Page 71 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road Richmond, Virginia 23230 Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Semivolatile Organic Compounds by GCMS - Quality Control
Enthalpy Analytical
Reporting Spike Source %REC RPD
Analyte Result Limit Units Level Result %REC Limits RPD Limit Qual
Batch BFH0127 - SW3550C/EPA600-M
Matrix Spike Dup (BFH0127-MSD1)
Source: 22G1231-43
Prepared: 08/03/2022 Analyzed: 08/04/2022
Phenanthrene
1410 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
72.3
10-393 8.72
20
Phenol
881 ug/kg dry
97.5
ug/kg dry
1970
<97.5 ug/kg
44.7
10-133 15.1
20
Pyrene
1050 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
53.7
10-212 13.2
20
Pyridine
647 ug/kg dry
97.5
ug/kg dry
1950
<97.5 ug/kg
33.2
0-200 20.9
20 P
- - - - - - - - - - - - - - -
Surr 2,4,6-Tribromophenol (Surr)
- - - - - - - - -
2520
- - -
- - - -
ug/kg dry
- - -
3900
- - - - -
ug/kg dry
- - -
64.5
- - - - - - - -
15-96
- - - - - - - - -
Surr 2-Fluorobiphenyl (Surr)
1080
ug/kg dry
1950
ug/kg dry
55.1
19-105
Surr 2-Fluorophenol (Surr)
1820
ug/kg dry
3900
ug/kg dry
46.7
12-95
Surr. Nitrobenzene-d5 (Surr)
1100
ug/kg dry
1950
ug/kg dry
56.4
21-100
Surr. Phenol-d5 (Surr)
2220
ug/kg dry
3900
ug/kg dry
56.9
13-100
Surr. p-Terphenyl-d14 (Surr)
1180
ug/kg dry
1950
ug/kg dry
60.6
25-125
Batch BFH0196 - SW3550C/EPA600-MS
Blank (BFH0196-BLK1)
1,2,4,5-Tetrachlorobenzene
1,2,4-Trichlorobenzene
1,2-Dichlorobenzene
1,2-Diphenylhydrazine
1,3-Dichlorobenzene
1,4-Dichlorobenzene
1-Chloronaphthalene
1-Naphthylamine
2, 3,4,6-Tetrachlorophenol
2,4, 5-Trich lorophenol
2,4,6-Trich lorophenol
2,4-Dichlorophenol
2,4-Dimethylphenol
2,4-Dinitrophenol
2,4-Dinitrotoluene
2,6-Dichlorophenol
2,6-Dinitrotoluene
Prepared: 08/04/2022 Analyzed: 08/05/2022
<83.3 ug/kg wet
83.3
ug/kg wet
<83.3 ug/kg wet
83.3
ug/kg wet
<83.3 ug/kg wet
83.3
ug/kg wet
<83.3 ug/kg wet
83.3
ug/kg wet
<83.3 ug/kg wet
83.3
ug/kg wet
<83.3 ug/kg wet
83.3
ug/kg wet
<83.3 ug/kg wet
83.3
ug/kg wet
<83.3 ug/kg wet
83.3
ug/kg wet
<83.3 ug/kg wet
83.3
ug/kg wet
<83.3 ug/kg wet
83.3
ug/kg wet
<83.3 ug/kg wet
83.3
ug/kg wet
<83.3 ug/kg wet
83.3
ug/kg wet
<83.3 ug/kg wet
83.3
ug/kg wet
<83.3 ug/kg wet
83.3
ug/kg wet
<83.3 ug/kg wet
83.3
ug/kg wet
<83.3 ug/kg wet
83.3
ug/kg wet
<83.3 ug/kg wet
83.3
ug/kg wet
Page 72 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Semivolatile Organic Compounds by GCMS - Quality Control
Enthalpy Analytical
Reporting Spike Source %REC RPD
Analyte Result Limit Units Level Result %REC Limits RPD Limit Qual
Batch BFH0196 - SW3550C/EPA600-MS
Blank (BFH0196-BLK1)
Prepared: 08/04/2022 Analyzed: 08/05/2022
2-Chloronaphthalene
<83.3 ug/kg wet
83.3
ug/kg wet
2-Chlorophenol
<83.3 ug/kg wet
83.3
ug/kg wet
2-Methyl naphthalene
<83.3 ug/kg wet
83.3
ug/kg wet
2-Naphthylamine
<83.3 ug/kg wet
83.3
ug/kg wet
2-Nitroaniline
<83.3 ug/kg wet
83.3
ug/kg wet
2-Nitrophenol
<83.3 ug/kg wet
83.3
ug/kg wet
3,3'-Dichlorobenzidine
<83.3 ug/kg wet
83.3
ug/kg wet
3-Methylcholanthrene
<83.3 ug/kg wet
83.3
ug/kg wet
3-Nitroaniline
<83.3 ug/kg wet
83.3
ug/kg wet
4,6-Dinitro-2-methylphenol
<83.3 ug/kg wet
83.3
ug/kg wet
4-Aminobiphenyl
<83.3 ug/kg wet
83.3
ug/kg wet
4-Bromophenyl phenyl ether
<83.3 ug/kg wet
83.3
ug/kg wet
4-Chloroaniline
<83.3 ug/kg wet
83.3
ug/kg wet
4-Chlorophenyl phenyl ether
<83.3 ug/kg wet
83.3
ug/kg wet
4-Nitroaniline
<83.3 ug/kg wet
83.3
ug/kg wet
4-Nitrophenol
<83.3 ug/kg wet
83.3
ug/kg wet
7,12-Dimethylbenz (a) anthracene
<83.3 ug/kg wet
83.3
ug/kg wet
Acenaphthene
<83.3 ug/kg wet
83.3
ug/kg wet
Acenaphthylene
<83.3 ug/kg wet
83.3
ug/kg wet
Acetophenone
<83.3 ug/kg wet
83.3
ug/kg wet
Aniline
<83.3 ug/kg wet
83.3
ug/kg wet
Anthracene
<83.3 ug/kg wet
83.3
ug/kg wet
Benzidine
<83.3 ug/kg wet
83.3
ug/kg wet
Benzo (a) anthracene
<83.3 ug/kg wet
83.3
ug/kg wet
Benzo (a) pyrene
<83.3 ug/kg wet
83.3
ug/kg wet
Benzo (b) fluoranthene
<83.3 ug/kg wet
83.3
ug/kg wet
Benzo (g,h,i) perylene
<83.3 ug/kg wet
83.3
ug/kg wet
Benzo (k) fluoranthene
<83.3 ug/kg wet
83.3
ug/kg wet
Benzoic acid
<83.3 ug/kg wet
83.3
ug/kg wet
Benzyl alcohol
<83.3 ug/kg wet
83.3
ug/kg wet
bis (2-Chloroethoxy) methane
<83.3 ug/kg wet
83.3
ug/kg wet
Page 73 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Semivolatile Organic Compounds by GCMS - Quality Control
Enthalpy Analytical
Reporting Spike Source %REC RPD
Analyte Result Limit Units Level Result %REC Limits RPD Limit Qual
Batch BFHO196 - SW3550C/EPA600-MS
Blank (BFH0196-BLK1)
Prepared: 08/04/2022 Analyzed: 08/05/2022
bis (2-Chloroethyl) ether
<83.3 ug/kg wet
83.3
ug/kg wet
2,2'-Oxybis (1-chloropropane)
<83.3 ug/kg wet
83.3
ug/kg wet
bis (2-Ethylhexyl) phthalate
<83.3 ug/kg wet
83.3
ug/kg wet
Butyl benzyl phthalate
<83.3 ug/kg wet
83.3
ug/kg wet
Chrysene
<83.3 ug/kg wet
83.3
ug/kg wet
Dibenz (a,h) anthracene
<83.3 ug/kg wet
83.3
ug/kg wet
Dibenz (a j) acridine
<83.3 ug/kg wet
83.3
ug/kg wet
Dibenzofuran
<83.3 ug/kg wet
83.3
ug/kg wet
Diethyl phthalate
<83.3 ug/kg wet
83.3
ug/kg wet
Dimethyl phthalate
<83.3 ug/kg wet
83.3
ug/kg wet
Di-n-butyl phthalate
<83.3 ug/kg wet
83.3
ug/kg wet
Di-n-octyl phthalate
<83.3 ug/kg wet
83.3
ug/kg wet
Diphenylamine
<83.3 ug/kg wet
83.3
ug/kg wet
Ethyl methanesulfonate
<83.3 ug/kg wet
83.3
ug/kg wet
Fluoranthene
<83.3 ug/kg wet
83.3
ug/kg wet
Fluorene
<83.3 ug/kg wet
83.3
ug/kg wet
Hexachlorobenzene
<83.3 ug/kg wet
83.3
ug/kg wet
Hexachlorobutadiene
<83.3 ug/kg wet
83.3
ug/kg wet
Hexachlorocyclopentadiene
<83.3 ug/kg wet
83.3
ug/kg wet
Hexachloroethane
<83.3 ug/kg wet
83.3
ug/kg wet
Indeno (1,2,3-cd) pyrene
<83.3 ug/kg wet
83.3
ug/kg wet
Isophorone
<83.3 ug/kg wet
83.3
ug/kg wet
m+p-Cresols
<83.3 ug/kg wet
83.3
ug/kg wet
Methyl methanesulfonate
<83.3 ug/kg wet
83.3
ug/kg wet
Naphthalene
<83.3 ug/kg wet
83.3
ug/kg wet
Nitrobenzene
<83.3 ug/kg wet
83.3
ug/kg wet
n-Nitrosodimethylamine
<83.3 ug/kg wet
83.3
ug/kg wet
n-Nitrosodi-n-butylamine
<83.3 ug/kg wet
83.3
ug/kg wet
n-Nitrosodi-n-propylamine
<83.3 ug/kg wet
83.3
ug/kg wet
n-Nitrosodiphenylamine
<83.3 ug/kg wet
83.3
ug/kg wet
n-Nitrosopiperidine
<83.3 ug/kg wet
83.3
ug/kg wet
Page 74 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Semivolatile Organic Compounds by GCMS - Quality Control
Enthalpy Analytical
Reporting Spike Source %REC RPD
Analyte Result Limit Units Level Result %REC Limits RPD Limit Qual
Batch BFHO196 - SW3550C/EPA600-MS
Blank (BFH0196-BLK1)
Prepared: 08/04/2022 Analyzed: 08/05/2022
o+m+p-Cresols
<83.3 ug/kg wet
83.3
ug/kg wet
o-Cresol
<83.3 ug/kg wet
83.3
ug/kg wet
p-(Dimethylamino) azobenzene
<83.3 ug/kg wet
83.3
ug/kg wet
p-Chloro-m-cresol
<83.3 ug/kg wet
83.3
ug/kg wet
Pentachloronitrobenzene (quintozene)
<83.3 ug/kg wet
83.3
ug/kg wet
Pentachlorophenol
<83.3 ug/kg wet
83.3
ug/kg wet
Phenacetin
<83.3 ug/kg wet
83.3
ug/kg wet
Phenanthrene
<83.3 ug/kg wet
83.3
ug/kg wet
Phenol
<83.3 ug/kg wet
83.3
ug/kg wet
Pronamide
<83.3 ug/kg wet
83.3
ug/kg wet
Pyrene
<83.3 ug/kg wet
83.3
ug/kg wet
Pyridine
<83.3 ug/kg wet
83.3
ug/kg wet
- - - - - - - - - - - - - - -
Surr. 2,4,6-Tribromophenol (Surr)
- - - - - - - - -
2050
- - -
- - - -
ug/kg wet
- - - - - -
3140
- - - - -
65.1
- - - - - - - - - - - - - - - - -
15-96
Surr. 2-Fluorobiphenyl (Surr)
1170
ug/kg wet
1570
74.7
19-105
Surr. 2-Fluorophenol (Surr)
1780
ug/kg wet
3140
56.5
12-95
Surr. Nitrobenzene-d5 (Surr)
1020
ug/kg wet
1570
64.8
21-100
Surr. Phenol-d5 (Surr)
2030
ug/kg wet
3140
64.7
13-100
Surr. p-Terphenyl-04 (Surr)
1120
ug/kg wet
1570
71.5
25-125
LCS (BFH0196-BS1)
Prepared: 08/04/2022Analyzed: 08/05/2022
1,2,4-Trichlorobenzene
1290 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
79.6
70-130
1,2-Dichlorobenzene
1190 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
73.0
70-130
1,3-Dichlorobenzene
1120 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
69.1
70-130 L
1,4-Dichlorobenzene
1180 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
72.7
70-130
2,4,6-Trichlorophenol
1160 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
71.5
20-115
2,4-Dichlorophenol
1350 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
83.4
20-111
2,4-Dimethyl phenol
1280 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
78.9
20-110
2,4-Dinitrophenol
2300 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
141
10-169
2,4-Dinitrotoluene
1470 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
90.7
21-125
2,6-Dinitrotoluene
1270 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
78.0
15-140
2-Chloronaphthalene
1210 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
74.6
22-105
2-Chlorophenol
1110 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
68.1
15-107
Page 75 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Semivolatile Organic Compounds by GCMS - Quality Control
Enthalpy Analytical
Reporting Spike Source %REC RPD
Analyte Result Limit Units Level Result %REC Limits RPD Limit Qual
Batch BFHO196 - SW3550C/EPA600-MS
LCS (BFH0196-BS1)
Prepared: 08/04/2022 Analyzed: 08/05/2022
2-Nitrophenol
1220 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
75.3
20-115
3,3'-Dichlorobenzidine
1150 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
70.7
10-110
4,6-Dinitro-2-methylphenol
2120 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
130
40-130 L
4-Bromophenyl phenyl ether
1220 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
75.4
20-114
4-Chlorophenyl phenyl ether
1170 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
72.1
15-110
4-Nitrophenol
2480 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
153
0-125 L
Acenaphthene
1260 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
77.9
24-110
Acenaphthylene
1290 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
79.3
25-106
Acetophenone
1020 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
63.0
0-200
Anthracene
1600 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
98.9
25-117
Benzo (a) anthracene
1390 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
85.6
25-127
Benzo (a) pyrene
1680 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
103
18-127
Benzo (b) fluoranthene
2120 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
130
20-132
Benzo (g,h,i) perylene
694 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
42.8
10-136
Benzo (k) fluoranthene
1940 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
120
14-136
bis (2-Chloroethoxy) methane
1090 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
67.4
20-100
bis (2-Chloroethyl) ether
880 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
54.2
13-100
2,2'-Oxybis (1-chloropropane)
1050 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
64.6
40-125
bis (2-Ethylhexyl) phthalate
1610 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
99.1
18-137
Butyl benzyl phthalate
1400 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
86.1
20-141
Chrysene
1360 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
83.5
21-141
Dibenz (a,h) anthracene
957 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
59.0
10-142
Diethyl phthalate
1550 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
95.3
20-120
Dimethyl phthalate
1290 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
79.5
23-109
Di-n-butyl phthalate
1840 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
113
18-136
Di-n-octyl phthalate
2490 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
153
10-160
Fluoranthene
2280 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
141
19-138 L
Fluorene
1400 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
86.1
25-114
Hexachlorobenzene
1240 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
76.5
20-113
Hexachlorobutadiene
1590 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
97.6
25-125
Hexachlorocyclopentadiene
588 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
36.2
10-125
Page 76 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Semivolatile Organic Compounds by GCMS - Quality Control
Enthalpy Analytical
Reporting Spike Source %REC RPD
Analyte Result Limit Units Level Result %REC Limits RPD Limit Qual
Batch BFH0196 - SW3550C/EPA600-MS
LCS (BFH0196-BS1)
Prepared: 08/04/2022 Analyzed: 08/05/2022
Hexachloroethane
1140 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
70.3
25-125
Indeno (1,2,3-cd) pyrene
1050 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
64.8
10-136
Isophorone
761 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
46.9
10-110
Naphthalene
1340 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
82.8
18-109
Nitrobenzene
1200 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
74.0
18-104
n-Nitrosodimethylamine
553 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
34.1
18-110
n-Nitrosodi-n-propylamine
1110 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
68.7
12-102
n-Nitrosodiphenylamine
1160 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
71.4
12-97
p-Chloro-m-cresol
1290 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
79.3
24-120
Pentachlorophenol
1530 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
94.5
10-116
Phenanthrene
1640 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
101
25-122
Phenol
956 ug/kg wet
83.3
ug/kg wet
1640
ug/kg wet
58.3
12-115
Pyrene
1190 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
73.3
17-159
Pyridine
570 ug/kg wet
83.3
ug/kg wet
1620
ug/kg wet
35.1
0-200
- - - - - - - - - - - - - -
Surr. 2,4,6-Tribromophenol (Surr)
- - - - - - - - - -
2630
- - -
- - - -
ug/kg wet
- - -
3250
- - - - -
ug/kg wet
- - -
81.1
- - - - - - - - - - - - - - - -
15-96
Surr. 2-Fluorobiphenyl (Surr)
1270
ug/kg wet
1620
ug/kg wet
78.2
19-105
Surr. 2-Fluorophenol (Surr)
1570
ug/kg wet
3250
ug/kg wet
48.3
12-95
Surr. Nitrobenzene-d5 (Surr)
1180
ug/kg wet
1620
ug/kg wet
72.8
21-100
Surr. Phenol-d5 (Surr)
2390
ug/kg wet
3250
ug/kg wet
73.6
13-100
Surr. p-Terphenyl-04 (Surr)
1360
ug/kg wet
1620
ug/kg wet
83.5
25-125
Matrix Spike (BFH0196-MS1)
Source: 22H0127-03
Prepared: 08/04/2022 Analyzed: 08/05/2022
1,2,4-Trichlorobenzene
1190 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
61.8
70-130 M
1,2-Dichlorobenzene
989 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
51.4
70-130 M
1,3-Dichlorobenzene
935 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
48.6
70-130 M
1,4-Dichlorobenzene
1010 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
52.4
70-130 M
2,4,6-Trichlorophenol
1090 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
56.7
10-115
2,4-Dichlorophenol
1270 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
66.0
10-128
2,4-Dimethylphenol
1170 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
60.7
10-121
2,4-Dinitrophenol
1690 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
87.8
10-228
2,4-Dinitrotoluene
1470 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
76.4
10-141
2,6-Dinitrotoluene
1270 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
66.0
15-140
Page 77 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Semivolatile Organic Compounds by GCMS - Quality Control
Enthalpy Analytical
Reporting Spike Source %REC RPD
Analyte Result Limit Units Level Result %REC Limits RPD Limit Qual
Batch BFHO196 - SW3550C/EPA600-MS
Matrix Spike (BFH0196-MS1)
Source: 22HO127-03
Prepared: 08/04/2022 Analyzed: 08/05/2022
2-Chloronaphthalene
1130 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
58.6
10-108
2-Chlorophenol
998 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
51.9
10-117
2-Nitrophenol
1130 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
58.9
10-131
3,3'-Dichlorobenzidine
980 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
51.0
10-110
4,6-Dinitro-2-methylphenol
1950 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
101
10-205
4-Bromophenyl phenyl ether
1130 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
58.8
10-119
4-Chlorophenyl phenyl ether
1180 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
61.3
15-110
4-Nitrophenol
2040 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
106
0-125
Acenaphthene
1210 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
62.8
10-124
Acenaphthylene
1200 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
62.5
10-118
Acetophenone
888 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
46.2
0-200
Anthracene
1440 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
75.0
10-143
Benzo (a) anthracene
1240 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
64.3
10-169
Benzo (a) pyrene
1480 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
76.9
10-149
Benzo (b) fluoranthene
1690 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
87.7
10-150
Benzo (g,h,i) perylene
700 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
36.4
10-123
Benzo (k) fluoranthene
1820 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
94.6
10-211
bis (2-Chloroethoxy) methane
1030 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
53.6
10-108
bis (2-Chloroethyl) ether
760 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
39.5
10-100
2,2'-Oxybis (1-chloropropane)
937 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
48.7
40-125
bis (2-Ethylhexyl) phthalate
1480 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
77.2
10-210
Butyl benzyl phthalate
1270 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
66.2
10-165
Chrysene
1190 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
62.0
10-172
Dibenz (a,h) anthracene
926 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
48.2
10-128
Diethyl phthalate
1450 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
75.6
10-120
Dimethyl phthalate
1280 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
66.6
10-125
Di-n-butyl phthalate
1490 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
77.6
10-133
Di-n-octyl phthalate
2190 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
114
10-196
Fluoranthene
1930 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
100
10-271
Fluorene
1360 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
70.8
10-124
Hexachlorobenzene
1170 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
60.7
10-125
Page 78 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Semivolatile Organic Compounds by GCMS - Quality Control
Enthalpy Analytical
Reporting Spike Source %REC RPD
Analyte Result Limit Units Level Result %REC Limits RPD Limit Qual
Batch BFH0196 - SW3550C/EPA600-MS
Matrix Spike (BFH0196-MS1)
Source: 22H0127-03
Prepared: 08/04/2022 Analyzed: 08/05/2022
Hexachlorobutadiene
1400 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
73.0
10-125
Hexachlorocyclopentadiene
616 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
32.0
10-125
Hexachloroethane
961 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
50.0
10-220
Indeno (1,2,3-cd) pyrene
1030 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
53.6
10-127
Isophorone
710 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
36.9
10-110
Naphthalene
1210 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
62.7
10-118
Nitrobenzene
1080 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
56.2
10-126
n-Nitrosodimethylamine
556 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
28.9
10-110
n-Nitrosodi-n-propylamine
1040 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
54.0
10-107
n-Nitrosodiphenylamine
1150 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
60.0
10-107
p-Chloro-m-cresol
1240 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
64.6
10-131
Pentachlorophenol
1320 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
68.4
10-151
Phenanthrene
1510 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
78.6
10-393
Phenol
834 ug/kg dry
96.1
ug/kg dry
1940
<96.1 ug/kg
42.9
10-133
Pyrene
1090 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
56.9
10-212
Pyridine
603 ug/kg dry
96.1
ug/kg dry
1920
<96.1 ug/kg
31.3
0-200
- - - - - - - - - - - - - -
Surr. 2,4,6-Tribromophenol (Surr)
- - - - - - - - - -
2530
- - -
- - - -
ug/kg dry
- - -
3850
- - - - -
ug/kg dry
- - -
65.9
- - - - - - - - - - - - - - - - -
15-96
Surr. 2-Fluorobiphenyl (Surr)
1200
ug/kg dry
1920
ug/kg dry
62.4
19-105
Surr. 2-Fluorophenol (Surr)
1770
ug/kg dry
3850
ug/kg dry
46.0
12-95
Surr. Nitrobenzene-d5 (Surr)
1110
ug/kg dry
1920
ug/kg dry
57.6
21-100
Surr. Phenol-d5 (Surr)
2200
ug/kg dry
3850
ug/kg dry
57.3
13-100
Surr.- p-Terphenyl-04 (Surr)
1300
ug/kg dry
1920
ug/kg dry
67.5
25-125
Matrix Spike Dup (BFH0196-MSD1)
Source: 22H0127-03
Prepared: 08/04/2022 Analyzed: 08/05/2022
1,2,4-Trichlorobenzene
1540 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
77.5
70-130
25.7
20
P
1,2-Dichlorobenzene
1290 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
65.0
70-130
26.6
20
M, P
1,3-Dichlorobenzene
1200 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
60.3
70-130
24.6
20
M, P
1,4-Dichlorobenzene
1300 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
65.5
70-130
25.4
20
M, P
2,4,6-Trichlorophenol
1410 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
71.0
10-115
25.7
20
P
2,4-Dichlorophenol
1640 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
82.8
10-128
25.8
20
P
2,4-Dimethylphenol
1510 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
76.1
10-121
25.7
20
P
2,4-Dinitrophenol
2290 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
115
10-228
30.0
20
P
Page 79 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Semivolatile Organic Compounds by GCMS - Quality Control
Enthalpy Analytical
Reporting Spike Source %REC RPD
Analyte Result Limit Units Level Result %REC Limits RPD Limit Qual
Batch BFHO196 - SW3550C/EPA600-MS
Matrix Spike Dup (BFH0196-MSD1)
Source: 22HO127-03
Prepared: 08/04/2022 Analyzed: 08/05/2022
2,4-Dinitrotoluene
1800 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
90.7
10-141
20.4
20
P
2,6-Dinitrotoluene
1590 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
80.3
15-140
22.7
20
P
2-Chloronaphthalene
1500 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
75.7
10-108
28.6
20
P
2-Chlorophenol
1310 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
66.0
10-117
27.1
20
P
2-Nitrophenol
1490 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
75.2
10-131
27.4
20
P
3,3'-Dichlorobenzidine
1150 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
58.1
10-110
16.3
20
4,6-Dinitro-2-methylphenol
2360 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
119
10-205
18.9
20
4-Bromophenyl phenyl ether
1490 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
75.1
10-119
27.5
20
P
4-Chlorophenyl phenyl ether
1530 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
77.1
15-110
26.0
20
P
4-Nitrophenol
2560 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
129
0-125
22.8
20
M, P
Acenaphthene
1590 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
79.9
10-124
27.2
20
P
Acenaphthylene
1650 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
83.3
10-118
31.7
20
P
Acetophenone
1160 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
58.2
0-200
26.2
20
P
Anthracene
1850 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
93.1
10-143
24.7
20
P
Benzo (a) anthracene
1560 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
78.6
10-169
23.3
20
P
Benzo (a) pyrene
1910 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
95.9
10-149
25.2
20
P
Benzo (b) fluoranthene
2600 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
131
10-150
42.4
20
P
Benzo (g,h,i) perylene
790 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
39.8
10-123
12.0
20
Benzo (k) fluoranthene
2080 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
105
10-211
13.5
20
bis (2-Chloroethoxy) methane
1380 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
69.3
10-108
28.8
20
P
bis (2-Chloroethyl) ether
1020 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
51.2
10-100
29.1
20
P
2,2'-Oxybis (1-chloropropane)
1210 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
60.8
40-125
25.3
20
P
bis (2-Ethylhexyl) phthalate
1900 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
95.6
10-210
24.6
20
P
Butyl benzyl phthalate
1560 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
78.7
10-165
20.4
20
P
Chrysene
1460 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
73.3
10-172
19.9
20
Dibenz (a,h) anthracene
1070 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
53.9
10-128
14.5
20
Diethyl phthalate
1890 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
95.2
10-120
26.1
20
P
Dimethyl phthalate
1660 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
83.6
10-125
25.8
20
P
Di-n-butyl phthalate
2040 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
103
10-133
30.9
20
P
Di-n-octyl phthalate
3010 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
152
10-196
31.9
20
P
Fluoranthene
2600 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
131
10-271
29.4
20
P
Page 80 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Semivolatile Organic Compounds by GCMS - Quality Control
Enthalpy Analytical
Reporting Spike Source %REC RPD
Analyte Result Limit Units Level Result %REC Limits RPD Limit Qual
Batch BFHO196 - SW3550C/EPA600-MS
Matrix Spike Dup (BFH0196-MSD1)
Source: 22H0127-03
Prepared: 08/04/2022 Analyzed: 08/05/2022
Fluorene
1810 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
91.0
10-124
28.2
20
P
Hexachlorobenzene
1520 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
76.7
10-125
26.5
20
P
Hexachlorobutadiene
1870 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
94.0
10-125
28.3
20
P
Hexachlorocyclopentadiene
877 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
44.1
10-125
34.9
20
P
Hexachloroethane
1250 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
63.1
10-220
26.5
20
P
Indeno (1,2,3-cd) pyrene
1160 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
58.6
10-127
12.0
20
Isophorone
940 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
47.3
10-110
27.9
20
P
Naphthalene
1600 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
80.8
10-118
28.3
20
P
Nitrobenzene
1470 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
74.0
10-126
30.6
20
P
n-Nitrosodimethylamine
745 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
37.5
10-110
29.0
20
P
n-Nitrosodi-n-propylamine
1390 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
70.0
10-107
29.0
20
P
n-Nitrosodiphenylamine
1410 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
71.0
10-107
20.0
20
p-Chloro-m-cresol
1600 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
80.3
10-131
24.9
20
P
Pentachlorophenol
1550 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
78.0
10-151
16.3
20
Phenanthrene
1950 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
98.0
10-393
25.2
20
P
Phenol
1140 ug/kg dry
99.3
ug/kg dry
2010
<99.3 ug/kg
56.7
10-133
30.9
20
P
Pyrene
1330 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
66.8
10-212
19.2
20
Pyridine
663 ug/kg dry
99.3
ug/kg dry
1990
<99.3 ug/kg
33.4
0-200
9.55
20
- - - - - - - - - - - - - - -
Surr. 2,4,6-Tribromophenol (Surr)
- - - - - - - - -
3200
- - -
- - - -
ug/kg dry
- - -
3970
- - - - -
ug/kg dry
- - -
80.6
- - - -
15-96
- - - -
- - -
- - - - - -
Surr. 2-Fluorobiphenyl (Surr)
1650
ug/kg dry
1990
ug/kg dry
82.8
19-105
Surr. 2-Fluorophenol (Surr)
2340
ug/kg dry
3970
ug/kg dry
58.8
12-95
Surr: Nitrobenzene-d5 (Surr)
1530
ug/kg dry
1990
ug/kg dry
77.0
21-100
Surr.- Phenol-d5 (Surr)
3060
ug/kg dry
3970
ug/kg dry
76.9
13-100
Surr.- p-Terphenyl-d14 (Surr)
1580
ug/kg dry
1990
ug/kg dry
79.5
25-125
Page 81 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road Richmond, Virginia 23230 Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Organochlorine Pesticides and PCBs by GC/ECD - Quality Control
Enthalpy Analytical
Reporting Spike Source %REC RPD
Analyte Result Limit Units Level Result %REC Limits RPD Limit Qual
Batch BFH0282 - SW3550B
Blank (BFH0282-BLK1)
Prepared: 08/08/2022 Analyzed: 08/09/2022
PCB as Aroclor 1016
<0.100 mg/kg wet
0.100
mg/kg wet
PCB as Aroclor 1221
<0.100 mg/kg wet
0.100
mg/kg wet
PCB as Aroclor 1232
<0.100 mg/kg wet
0.100
mg/kg wet
PCB as Aroclor 1242
<0.100 mg/kg wet
0.100
mg/kg wet
PCB as Aroclor 1248
<0.100 mg/kg wet
0.100
mg/kg wet
PCB as Aroclor 1254
<0.100 mg/kg wet
0.100
mg/kg wet
PCB as Aroclor 1260
<0.100 mg/kg wet
0.100
mg/kg wet
- - - - - - - - - - - - -
Surr DCB
- - - - - - - - - - -
0.0290
- - -
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
mg/kg wet 0.0331 87.5 30-105
Surr. TCMX
0.0132
mg/kg wet 0.0331 39.8 30-105
LCS (BFH0282-BS1)
Prepared: 08/08/2022 Analyzed: 08/09/2022
PCB as Aroclor 1016
0.125 mg/kg wet
0.100 mg/kg wet
0.159 mg/kg wet
78.5
70-130
PCB as Aroclor 1260
0.159 mg/kg wet
0.100 mg/kg wet
0.159 mg/kg wet
99.8
70-130
- - - - - - - - - - - -
Surr: DCB
- - - - - - - - - - - -
0.0317
- - - - - - -
mg/kg wet
- - - - - - - -
0.0318 mg/kg wet
- - -
99.5
- - - - - - - - - - - - - - - - -
30-105
Surr: TCMX
0.0309
mg/kg wet
0.0318 mg/kg wet
96.9
30-105
Matrix Spike (BFH0282-MS1)
Source: 22H0282-01
Prepared: 08/08/2022 Analyzed: 08/09/2022
PCB as Aroclor 1016
0.221 mg/kg dry
0.129 mg/kg dry
0.216 <0.129 mg/kg
102
70-130
PCB as Aroclor 1260
0.175 mg/kg dry
0.129 mg/kg dry
0.216 <0.129 mg/kg
81.4
70-130
- - - - - - - - - - - - - -
Surr DCB
- - - - - - - - -
0.0632
- - - - - - - -
mg/kg dry
- - - - - - - - -
0.0431 mg/kg dry
- -
147
- - - - - - - - - - - - - - - - -
30-105 s
Surr. TCMX
0.0418
mg/kg dry
0.0431 mg/kg dry
96.9
30-105
Matrix Spike Dup (BFH0282-MSD1)
Source: 22H0282-01
Prepared: 08/08/2022 Analyzed:
08/09/2022
PCB as Aroclor 1016
0.205 mg/kg dry
0.130 mg/kg dry
0.217 <0.130 mg/kg
94.5
70-130 7.19 20
PCB as Aroclor 1260
0.157 mg/kg dry
0.130 mg/kg dry
0.217 <0.130 mg/kg
72.5
70-130 10.8 20
- - - - - - - - - - - - - - -
Surr. DCB
- - - - - - - - -
0.0545
- - - - - - -
mg/kg dry
- - - - - - - - -
0.0434 mg/kg dry
- -
126
- - - - - - - - - - - - - - -
30-105 s
Surr. TCMX
0.0384
mg/kg dry
0.0434 mg/kg dry
88.5
30-105
Page 82 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Wet Chemistry Analysis - Quality Control
Enthalpy Analytical
Reporting Spike Source %REC RPD
knalyte Result Limit Units Level Result %REC Limits RPD Limit Qual
Batch BFHO164 - No Prep Wet Chem
Blank (BFH0164-BLK1) Prepared & Analyzed: 08/04/2022
Percent Solids 100 % 0.10 %
Duplicate (BFH0164-DUP1) Source: 22H0122-01 Prepared &Analyzed: 08/04/2022
Percent Solids 79.1 % 0.10 % 75.4 % 4.82 20
Duplicate (BFH0164-DUP2) Source: 22H0122-05 Prepared & Analyzed: 08/04/2022
Percent Solids 83.1 % 0.10 % 86.3 % 3.83 20
Batch BFH0245 - No Prep Wet Chem
Blank (BFH0245-BLK1) Prepared & Analyzed: 08/05/2022
Percent Solids 100 % 0.10 %
Duplicate (BFH0245-DUPl) Source: 22H0122-02 Prepared &Analyzed: 08/05/2022
Percent Solids 87.3 % 0.10 % 85.4 % 2.12 20
Page 83 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name:
S&ME - Raleigh
Date Issued: October 21, 2022 14:27
3201 Spring Forest Road
Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To:
Sam Watts
Client Site I.D.:
Welcome Ventures
Certified Analyses included in this Report
Analyte
Certifications
SW8082A in Solids
PCB as Aroclor 1016
VELAP,PADEP,NCDEQ,WVDEP
PCB as Aroclor 1221
VELAP,PADEP,NCDEQ,WVDEP
PCB as Aroclor 1232
VELAP,PADEP,NCDEQ,WVDEP
PCB as Aroclor 1242
VELAP,PADEP,NCDEQ,WVDEP
PCB as Aroclor 1248
VELAP,PADEP,NCDEQ,WVDEP
PCB as Aroclor 1254
VELAP,PADEP,NCDEQ,WVDEP
PCB as Aroclor 1260
VELAP,PADEP,NCDEQ,WVDEP
SW8260D in Solids
1,1,1,2-Tetrachloroethane
VELAP,PADEP,NCDEQ,WVDEP
1, 1, 1 -Trichloroethane
VELAP,PADEP,NCDEQ,WVDEP
1,1,2,2-Tetrachloroethane
VELAP,PADEP,NCDEQ,WVDEP
1,1,2-Trichloroethane
VELAP,PADEP,NCDEQ,WVDEP
1,1-Dichloroethane
VELAP,PADEP,NCDEQ,WVDEP
1,1-Dichloroethylene
VELAP,PADEP,NCDEQ,WVDEP
1,1-Dichloropropene
VELAP,PADEP,NCDEQ,WVDEP
1,2,3-Trichlorobenzene
VELAP,PADEP,NCDEQ,WVDEP
1,2,3-Trichloropropane
VELAP,PADEP,NCDEQ,WVDEP
1,2,4-Trichlorobenzene
VELAP,PADEP,NCDEQ,WVDEP
1,2,4-Trimethyl benzene
VELAP,PADEP,NCDEQ,WVDEP
1,2-Dibromo-3-chloropropane (DBCP)
VELAP,PADEP,NCDEQ,WVDEP
1,2-Dibromoethane (EDB)
VELAP,PADEP,NCDEQ,WVDEP
1,2-Dichlorobenzene
VELAP,PADEP,NCDEQ,WVDEP
1,2-Dichloroethane
VELAP,PADEP,NCDEQ,WVDEP
1,2-Dichloropropane
VELAP,PADEP,NCDEQ,WVDEP
1,3,5-Trimethyl benzene
VELAP,PADEP,NCDEQ,WVDEP
1,3-Dichlorobenzene
VELAP,PADEP,NCDEQ,WVDEP
1,3-Dichloropropane
VELAP,PADEP,NCDEQ,WVDEP
1,4-Dichlorobenzene
VELAP,PADEP,NCDEQ,WVDEP
2,2-Dichloropropane
VELAP,PADEP,NCDEQ,WVDEP
2-Butanone (MEK)
VELAP,PADEP,NCDEQ,WVDEP
2-Chlorotoluene
VELAP,PADEP,NCDEQ,WVDEP
2-Hexanone (MBK)
VELAP,PADEP,NCDEQ,WVDEP
4-Chlorotoluene
VELAP,PADEP,NCDEQ,WVDEP
4-Isopropyltoluene
VELAP,PADEP,NCDEQ,WVDEP
4-Methyl-2-pentanone (MIBK)
VELAP,PADEP,NCDEQ,WVDEP
Acetone
VELAP,PADEP,NCDEQ,WVDEP
Benzene
VELAP,PADEP,NCDEQ,WVDEP
Page 84 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Certified Analyses included in this Report
Analyte Certifications
Bromobenzene
VELAP,PADEP,NCDEQ,WVDEP
Bromochloromethane
VELAP,PADEP,NCDEQ,WVDEP
Bromodichloromethane
VELAP,PADEP,NCDEQ,WVDEP
Bromoform
VELAP,PADEP,NCDEQ,WVDEP
Bromomethane
VELAP,PADEP,NCDEQ,WVDEP
Carbon disulfide
VELAP,PADEP,NCDEQ,WVDEP
Carbon tetrachloride
VELAP,PADEP,NCDEQ,WVDEP
Chlorobenzene
VELAP,PADEP,NCDEQ,WVDEP
Chloroethane
VELAP,PADEP,NCDEQ,WVDEP
Chloroform
VELAP,PADEP,NCDEQ,WVDEP
Chloromethane
VELAP,PADEP,NCDEQ,WVDEP
cis- 1,2-Dichloroethylene
VELAP,PADEP,NCDEQ,WVDEP
cis- 1,3-Dichloropropene
VELAP,PADEP,NCDEQ,WVDEP
Dibromochloromethane
VELAP,PADEP,NCDEQ,WVDEP
Dibromomethane
VELAP,PADEP,NCDEQ,WVDEP
Dichlorodifluoromethane
VELAP,PADEP,NCDEQ,WVDEP
Di -isopropyl ether (DIPE)
VELAP,PADEP,NCDEQ,WVDEP
Ethylbenzene
VELAP,PADEP,NCDEQ,WVDEP
Hexachlorobutadiene
VELAP,PADEP,NCDEQ,WVDEP
lodomethane
VELAP,PADEP,NCDEQ,WVDEP
Isopropylbenzene
VELAP,PADEP,NCDEQ,WVDEP
m+p-Xylenes
VELAP,PADEP,NCDEQ,WVDEP
Methylene chloride
VELAP,PADEP,NCDEQ,WVDEP
Methyl-t-butyl ether (MTBE)
VELAP,PADEP,NCDEQ,WVDEP
Naphthalene
VELAP,PADEP,NCDEQ,WVDEP
n-Butylbenzene
VELAP,PADEP,NCDEQ,WVDEP
n-Propylbenzene
VELAP,PADEP,NCDEQ,WVDEP
o-Xylene
VELAP,PADEP,NCDEQ,WVDEP
sec-Butylbenzene
VELAP,PADEP,NCDEQ,WVDEP
Styrene
VELAP,PADEP,NCDEQ,WVDEP
tert-Butylbenzene
VELAP,PADEP,NCDEQ,WVDEP
Tetrachloroethylene (PCE)
VELAP,PADEP,NCDEQ,WVDEP
Toluene
VELAP,PADEP,NCDEQ,WVDEP
trans-1,2-Dichloroethylene
VELAP,PADEP,NCDEQ,WVDEP
trans-1,3-Dichloropropene
VELAP,PADEP,NCDEQ,WVDEP
Trichloroethylene
VELAP,PADEP,NCDEQ,WVDEP
Trichlorofluoromethane
VELAP,PADEP,NCDEQ,WVDEP
Vinyl acetate
VELAP,PADEP,NCDEQ,WVDEP
Page 85 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name:
S&ME - Raleigh
Date Issued: October 21, 2022 14:27
3201 Spring Forest Road
Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To:
Sam Watts
Client Site I.D.:
Welcome Ventures
Certified Analyses included in this Report
Analyte
Certifications
Vinyl chloride
VELAP,PADEP,NCDEQ,WVDEP
Xylenes, Total
VELAP,PADEP,NCDEQ,WVDEP
Dibromofluoromethane (Surr)
VELAP
SW8270E in Solids
1,2,4,5-Tetrachlorobenzene
VELAP,PADEP,NCDEQ,WVDEP
1,2,4-Trichlorobenzene
VELAP,PADEP,NCDEQ,WVDEP
1,2-Dichlorobenzene
VELAP,PADEP,NCDEQ,WVDEP
1,2-Diphenylhydrazine
VELAP,WVDEP
1,3-Dichlorobenzene
VELAP,PADEP,NCDEQ,WVDEP
1,4-Dichlorobenzene
VELAP,PADEP,NCDEQ,WVDEP
1-Chloronaphthalene
VELAP,PADEP,NCDEQ,WVDEP
1-Naphthylamine
VELAP,PADEP,NCDEQ,WVDEP
2,3,4,6-Tetrachlorophenol
VELAP,PADEP,NCDEQ,WVDEP
2,4,5-Trichlorophenol
VELAP,PADEP,NCDEQ,WVDEP
2,4,6-Trichlorophenol
VELAP,PADEP,NCDEQ,WVDEP
2,4-Dichlorophenol
VELAP,PADEP,NCDEQ,WVDEP
2,4-Di methyl phenol
VELAP,PADEP,NCDEQ,WVDEP
2,4-Dinitrophenol
VELAP,PADEP,NCDEQ,WVDEP
2,4-Dinitrotoluene
VELAP,PADEP,NCDEQ,WVDEP
2,6-Dichlorophenol
VELAP,PADEP,NCDEQ,WVDEP
2,6-Dinitrotoluene
VELAP,PADEP,NCDEQ,WVDEP
2-Chloronaphthalene
VELAP,PADEP,NCDEQ,WVDEP
2-Chlorophenol
VELAP,PADEP,NCDEQ,WVDEP
2-Methyl naphthalene
VELAP,PADEP,NCDEQ,WVDEP
2-Naphthylamine
VELAP,PADEP,NCDEQ,WVDEP
2-Nitroaniline
VELAP,PADEP,NCDEQ,WVDEP
2-Nitrophenol
VELAP,PADEP,NCDEQ,WVDEP
3,3'-Dichlorobenzidine
VELAP,PADEP,NCDEQ,WVDEP
3-Methyl cholanth rene
VELAP,PADEP,NCDEQ,WVDEP
3-Nitroaniline
VELAP,PADEP,NCDEQ,WVDEP
4,6-Dinitro-2-methylphenol
VELAP,PADEP,NCDEQ,WVDEP
4-Aminobiphenyl
VELAP,PADEP,NCDEQ,WVDEP
4-Bromophenyl phenyl ether
VELAP,PADEP,NCDEQ,WVDEP
4-Chloroaniline
VELAP,PADEP,NCDEQ,WVDEP
4-Chlorophenyl phenyl ether
VELAP,PADEP,NCDEQ,WVDEP
4-Nitroaniline
VELAP,PADEP,NCDEQ,WVDEP
4-Nitrophenol
VELAP,PADEP,NCDEQ,WVDEP
7,12-Dimethylbenz (a) anthracene
VELAP,PADEP,NCDEQ,WVDEP
Page 86 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Certified Analyses included in this Report
Analyte Certifications
Acenaphthene
VELAP,PADEP,NCDEQ,WVDEP
Acenaphthylene
VELAP,PADEP,NCDEQ,WVDEP
Acetophenone
VELAP,PADEP,NCDEQ,WVDEP
Aniline
VELAP,PADEP,NCDEQ,WVDEP
Anthracene
VELAP,PADEP,NCDEQ,WVDEP
Benzidine
VELAP,PADEP,NCDEQ,WVDEP
Benzo (a) anthracene
VELAP,PADEP,NCDEQ,WVDEP
Benzo (a) pyrene
VELAP,PADEP,NCDEQ,WVDEP
Benzo (b) fluoranthene
VELAP,PADEP,NCDEQ,WVDEP
Benzo (g,h,i) perylene
VELAP,PADEP,NCDEQ,WVDEP
Benzo (k) fluoranthene
VELAP,PADEP,NCDEQ,WVDEP
Benzoic acid
VELAP,PADEP,NCDEQ,WVDEP
Benzyl alcohol
VELAP,PADEP,NCDEQ,WVDEP
bis (2-Chloroethoxy) methane
VELAP,PADEP,NCDEQ,WVDEP
bis (2-Chloroethyl) ether
VELAP,PADEP,NCDEQ,WVDEP
2,2'-Oxybis (1-chloropropane)
VELAP,PADEP,NCDEQ,WVDEP
bis (2-Ethylhexyl) phthalate
VELAP,PADEP,NCDEQ,WVDEP
Butyl benzyl phthalate
VELAP,PADEP,NCDEQ,WVDEP
Chrysene
VELAP,PADEP,NCDEQ,WVDEP
Dibenz (a,h) anthracene
VELAP,PADEP,NCDEQ,WVDEP
Dibenz (aJ) acridine
VELAP,PADEP,NCDEQ,WVDEP
Dibenzofuran
VELAP,PADEP,NCDEQ,WVDEP
Diethyl phthalate
VELAP,PADEP,NCDEQ,WVDEP
Dimethyl phthalate
VELAP,PADEP,NCDEQ,WVDEP
Di-n-butyl phthalate
VELAP,PADEP,NCDEQ,WVDEP
Di-n-octyl phthalate
VELAP,NCDEQ,WVDEP
Diphenylamine
VELAP,PADEP,NCDEQ,WVDEP
Ethyl methanesulfonate
VELAP,PADEP,NCDEQ,WVDEP
Fluoranthene
VELAP,PADEP,NCDEQ,WVDEP
Fluorene
VELAP,PADEP,NCDEQ,WVDEP
Hexachlorobenzene
VELAP,PADEP,NCDEQ,WVDEP
Hexachlorobutadiene
VELAP,PADEP,NCDEQ,WVDEP
Hexachlorocyclopentadiene
VELAP,PADEP,NCDEQ,WVDEP
Hexachloroethane
VELAP,PADEP,NCDEQ,WVDEP
Indeno (1,2,3-cd) pyrene
VELAP,PADEP,NCDEQ,WVDEP
Isophorone
VELAP,PADEP,NCDEQ,WVDEP
m+p-Cresols
VELAP,PADEP,NCDEQ,WVDEP
Methyl methanesulfonate
VELAP,PADEP,NCDEQ,WVDEP
Page 87 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name:
S&ME - Raleigh
Date Issued:
October 21, 2022 14:27
3201 Spring Forest Road
Project Number:
[none]
Purchase Order:
Raleigh NC, 27616
Submitted To:
Sam Watts
Client Site I.D.:
Welcome Ventures
Certified Analyses
included in this Report
Analyte
Certifications
Naphthalene
VELAP,PADEP,NCDEQ,WVDEP
Nitrobenzene
VELAP,PADEP,NCDEQ,WVDEP
n-Nitrosodimethylamine
VELAP,PADEP,NCDEQ,WVDEP
n-Nitrosodi-n-butylamine
VELAP,PADEP,NCDEQ,WVDEP
n-Nitrosodi-n-propylamine
VELAP,PADEP,NCDEQ,WVDEP
n-Nitrosodiphenylamine
VELAP,PADEP,NCDEQ,WVDEP
n-Nitrosopiperidine
VELAP,PADEP,NCDEQ,WVDEP
o+m+p-Cresols
VELAP,PADEP,NCDEQ,WVDEP
o-Cresol
VELAP,PADEP,NCDEQ,WVDEP
p-(Dimethylamino) azobenzene
VELAP,NCDEQ,WVDEP
p-Chloro-m-cresol
VELAP,PADEP,NCDEQ,WVDEP
Pentachloronitrobenzene (quintozene)
NCDEQ,WVDEP
Pentachlorophenol
VELAP,PADEP,NCDEQ,WVDEP
Phenacetin
VELAP,PADEP,NCDEQ,WVDEP
Phenanthrene
VELAP,PADEP,NCDEQ,WVDEP
Phenol
VELAP,PADEP,NCDEQ,WVDEP
Pronamide
VELAP,PADEP,NCDEQ,WVDEP
Pyrene
VELAP,PADEP,NCDEQ,WVDEP
Pyridine
VELAP,PADEP,NCDEQ,WVDEP
Code
Description
Laboratory ID
Expires
MdDOE
Maryland DE Drinking Water
341
12/31/2022
NCDEQ
North Carolina DEQ
495
12/31/2022
NYDOH
New York DOH Drinking Water
12096
04/01/2023
PADEP
NELAP-Pennsylvania Certificate #007 68-03503
10/31/2022
VELAP
NELAP-Virginia Certificate #12098
460021
06/14/2023
WVDEP
West Virginia DEP
350
11/30/2022
Page 88 of 114

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Summary of Data Qualifiers
C Continuing calibration verification response for this analyte is outside specifications.
L LCS recovery is outside of established acceptance limits
M Matrix spike recovery is outside established acceptance limits
P Duplicate analysis does not meet the acceptance criteria for precision
S Surrogate recovery was outside acceptance criteria
RPD Relative Percent Difference
Qual Qualifers
-RE Denotes sample was re -analyzed
D.F. Dilution Factor. Please also see the Preparation Factor in the Analysis Summary section.
TIC Tentatively Identified Compounds are compounds that are identified by comparing the analyte mass spectral pattern with the NIST spectral
library. A TIC spectral match is reported when the pattern is at least 75% consistent with the published pattern. Compound concentrations
are estimated and are calculated using an internal standard response factor of 1.
PCBs, Total Total PCBs are defined as the sum of detected Aroclors 1016, 1221, 1232, 1248, 1254, 1260, 1262, and 1268
Page 89 of 114

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f Page 91 of 114 1

yeENTHALPY
! ANALYTICAL
1941 Reymet Road • Richmond, Virginia 23230 • Tel: [phone] Fax: [phone]
Certificate of Analysis
Final Report
Client Name: S&ME - Raleigh Date Issued: October 21, 2022 14:27
3201 Spring Forest Road Project Number: [none]
Purchase Order:
Raleigh NC, 27616
Submitted To: Sam Watts
Client Site I.D.: Welcome Ventures
Samale Conditions Checklist
Samples Received at: 22.60°C
How were samples received? FedEx Express
Were Custody Seals used? If so, were they received intact? No
Are the custody papers filled out completely and correctly? No
Do all bottle labels agree with custody papers? Yes
Is the temperature blank or representative sample within acceptable limits or received on ice, and recently taken? No
Are all samples within holding time for requested laboratory tests?
Yes
Is a sufficient amount of sample provided to perform the tests included?
Yes
Are all samples in appropriate containers for the analyses requested?
Yes
Were volatile organic containers received?
No
Are all volatile organic and TOX containers free of headspace?
NA
Is a trip blank provided for each VOC sample set? VOC sample sets include EPA8011 , EPA504, EPA8260, EPA624,
NA
EPA8015 GRO, EPA8021, EPA524, and RSK-175.
Are all samples received appropriately preserved? Note that metals containers do not require field preservation but lab Yes
preservation may delay analysis.
Work Order Comments
Work order logged per scheduled analyses and email from Sam Watts. SE 8/5/22
Page 92 of 114

Vista
an Enthalpy Analytical Laboratory
October 20, 2022
Vista Work Order No. 2208275
Ms. Sarah Endsley
Enthalpy Analytical, LLC
1941 Reymet Road
Richmond, VA 23237
Dear Ms. Endsley,
Enclosed are the results for the sample set received at Vista Analytical Laboratory on August 16, 2022 under your
Project Name '221-10122'.
Vista Analytical Laboratory is committed to serving you effectively. If you require additional information, please
contact me at 916-673-1520 or by email at [e-mail].
Thank you for choosing Vista as part of your analytical support team.
Sincerely,
Karen L. Volpendesta
Project Manager
Vista Analytical Laboratory certifies that the report herein meets all the requirements set forth by NELAP for those applicable test
methods. Results relate only to the samples as received by the laboratory. This report should not be reproduced except in full without
I* the written approval of Vista.
Vista Analytical Laboratory 1104 Windfield Way El Dorado Hills, CA 95762 ph: 916-673-1520 fx: 916-673-0106 www.vista-analytical.com
Work Order 2208275
Page 93 of 114
Page 1 of 22

Vista Work Order No. 2208275
Case Narrative
Sample Condition on Receipt:
Five solid samples were received and stored securely in accordance with Vista standard operating procedures and
EPA methodology. The samples were received in good condition and within the method temperature
requirements.
Analytical Notes:
EPA Method 1668C
These samples were analyzed for the World Health Organization (WHO) list of PCB congeners by EPA Method
1668C using a ZB-5MS GC column.
Holding Times
The samples were extracted and analyzed within the method hold times.
Quality Control
The Initial Calibration and Continuing Calibration Verifications met the method acceptance criteria.
A Method Blank and Ongoing Precision and Recovery (OPR) sample were extracted and analyzed with the
preparation batch. No analytes were detected above the sample quantitation limit in the Method Blank. The
OPR recoveries were within the method acceptance criteria.
Labeled standard recoveries for all QC and field samples were within method acceptance criteria.
Work Order 2208275
Page 94 of 114
Page 2 of 22

TABLE OF CONTENTS
CaseNarrative................................................................................................
1
Tableof Contents...........................................................................................
3
SampleInventory...........................................................................................
4
AnalyticalResults..........................................................................................
5
Qualifiers........................................................................................................
13
Certifications..................................................................................................
14
SampleReceipt..............................................................................................
17
Work Order 2208275
Page 95 of 114
Page 3 of 22

Sample Inventory Report
Vista
an EnthalpyAnalyticai Laboratory
Vista
Client
Sample ID
Sample ID
Sampled
Received
Components/Containers
2208275-01
22H0122-01: ET-N-1
27-Jul-22 15:00
16-Aug-22 09:15
Clear Glass Jar, 250ml-
2208275-02
22H0122-02: ET-S-1
27-Jul-22 13:40
16-Aug-22 09:15
Clear Glass Jar, 250ml-
Clear Glass Jar, 120ml-
2208275-03
22H0122-03: ET-E-1
27-Jul-22 14:05
16-Aug-22 09:15
Clear Glass Jar, 250ml-
2208275-04
22H0122-04: ET-W-1
27-Jul-22 14:30
16-Aug-22 09:15
Clear Glass Jar, 250ml-
2208275-05
22H0122-05: ET-B-1
27-Jul-22 14:45
16-Aug-22 09:15
Clear Glass Jar, 250ml-
Work Order 2208275
Page 96 of 114
Page 4 of 22

ANALYTICAL RESULTS
Work Order 2208275
Page 97 of 114
Page 5 of 22

V
Vista
- Enthalm AmMiml Labotat—
Sample ID: Method Blank
EPA Method 1668C
Client Data
Laboratory Data
Name: Enthalpy Analytical, LLC
Lab Sample:
B22I219-BLKI
Project: 22HO122
QC Batch:
B22I219
Date Extracted: 27-Sep-22
Matrix: Solid
Sample Size:
10.0 g
Column: ZB-5MS
Analyte
Cone. (mg/kg)
EDL
EMPC
Qualifiers Analyzed
Dilution
PCB-77
ND
0.0000000413
19-Oct-2218:38
1
PCB-81
ND
0.0000000472
19-Oct-2218:38
1
PCB-105
ND
0.000000104
19-Oct-2218:38
1
PCB-114
ND
0.0000000875
19-Oct-2218:38
1
PCB-106/118
ND
0.000000169
19-Oct-22 18:38
1
PCB-123
ND
0.000000084
19-Oct-2218:38
1
PCB-126
ND
0.0000000736
19-Oct-2218:38
1
PCB-156
ND
0.0000000511
19-Oct-2218:38
1
PCB-157
ND
0.0000000535
19-Oct-2218:38
1
PCB-167
ND
0.0000000552
19-Oct-2218:38
1
PCB-169
ND
0.0000000479
19-Oct-2218:38
1
PCB-189
ND
0.0000000703
19-Oct-2218:38
1
Toxic Equivalent
TEQMinWH02005PCB
0.00
Labeled Standards
Type
% Recovery
Limits
Qualifiers Analyzed
Dilution
13C-PCB-77
IS
93.0
10 - 145
19-Oct-22 18:38
1
13C-PCB-81
IS
89.7
10 -
145
19-Oct-22 18:38
1
13C-PCB-105
IS
102
10 -
145
19-Oct-22 18:38
1
13C-PCB-114
IS
98.5
10 -
145
19-Oct-22 18:38
1
13C-PCB-118
IS
88.1
10 -
145
19-Oct-22 18:38
1
13C-PCB-123
IS
88.9
10 -
145
19-Oct-22 18:38
1
13C-PCB-126
IS
101
10 -
145
19-Oct-22 18:38
1
13C-PCB-156
IS
103
10 -
145
19-Oct-22 18:38
1
13C-PCB-157
IS
97.7
10 -
145
19-Oct-22 18:38
1
13C-PCB-167
IS
98.7
10 -
145
19-Oct-22 18:38
1
13C-PCB-169
IS
101
10 -
145
19-Oct-22 18:38
1
13C-PCB-189
IS
106
10 -
145
19-Oct-22 18:38
1
13C-PCB-79
CRS
89.0
10 -
145
19-Oct-22 18:38
1
EDL - Sample specifc estimated detection limit
EMPC - Estimated maximum possible concentration
The results are reported in dry weight.
The sample size is reported in wet weight.
Work Order 2208275
Page 98 of 114
Page 6 of 22

6vVista
an Enthalo Analytical Laboratory
Sample ID: OPR
EPA Method 1668C
Client Data
Laboratory Data
Name: Enthalpy Analytical, LLC
Lab Sample:
B22I219-BSI
Project: 22HO122
QC Batch:
B22I219
Date Extracted:
27-Sep-22 14:02
Matrix: Solid
Sample Size:
10.0 g
Column:
ZB-5MS
Analyte
Amt Found (mg/kg
Spike Amt
% Recovery
Limits
Qualifiers
Analyzed
Dilution
PCB-77
0.000544
0.000500
109
60-135
19-Oct-2214:04
1
PCB-81
0.000575
0.000500
115
60-135
19-Oct-22 14:04
1
PCB-105
0.000548
0.000500
110
60-135
19-Oct-22 14:04
1
PCB-114
0.000589
0.000500
118
60-135
19-Oct-22 14:04
1
PCB-106/118
0.00112
0.00100
112
60-135
19-Oct-22 14:04
1
PCB-123
0.000567
0.000500
113
60-135
19-Oct-22 14:04
1
PCB-126
0.000574
0.000500
115
60-135
19-Oct-22 14:04
1
PCB-156
0.000534
0.000500
107
60-135
19-Oct-22 14:04
1
PCB-157
0.000557
0.000500
ill
60-135
19-Oct-22 14:04
1
PCB-167
0.000551
0.000500
110
60-135
19-Oct-22 14:04
1
PCB-169
0.000553
0.000500
111
60-135
19-Oct-22 14:04
1
PCB-189
0.000537
0.000500
107
60-135
19-Oct-2214:04
1
Labeled Standards
Type
% Recovery
Limits
Qualifiers
Analyzed
Dilution
13C-PCB-77
IS
93.2
40-145
19-Oct-22 14:04
1
13C-PCB-81
IS
88.2
40-145
19-Oct-22 14:04
1
13C-PCB-105
IS
107
40-145
19-Oct-22 14:04
1
13C-PCB-114
IS
103
40-145
19-Oct-22 14:04
1
13C-PCB-118
IS
87.0
40-145
19-Oct-22 14:04
1
13 C-PCB-123
IS
86.6
40-145
19-Oct-22 14:04
1
13C-PCB-126
IS
105
40-145
19-Oct-22 14:04
1
13C-PCB-156
IS
106
40-145
19-Oct-22 14:04
1
13C-PCB-157
IS
101
40-145
19-Oct-22 14:04
1
13C-PCB-167
IS
103
40-145
19-Oct-22 14:04
1
13C-PCB-169
IS
103
40-145
19-Oct-22 14:04
1
13C-PCB-189
IS
109
40-145
19-Oct-22 14:04
1
13C-PCB-79
CRS
80.4
40-145
19-Oct-22 14:04
1
Work Order 2208275
Page 99 of 114
Page 7 of 22

V
Vista
- Enthalm AmMiml Labotat—
Sample ID: 22HO122-01: ET-N-1
EPA Method 1668C
Client Data
Laboratory Data
Name:
Enthalpy Analytical, LLC
Lab Sample:
2208275-01
Date Received:
16-Aug-22 09:15
Project:
22HO122
QC Batch:
B22I219
Date Extracted:
27-Sep-22
Matrix:
Solid
Sample Size:
12.1 g
Column:
ZB-5MS
Date Collected:
27-Jul-22 15:00
% Solids:
82.5
Analyte
Cone. (mg/kg)
EDL
EMPC
Qualifiers
Analyzed
Dilution
PCB-77
0.00000110
J
19-Oct-22 20:35
1
PCB-81
0.000000837
J
19-Oct-22 20:35
1
PCB-105
0.00000183
19-Oct-22 20:35
1
PCB-114
0.00000113
J
19-Oct-22 20:35
1
PCB-106/118
0.00000366
19-Oct-22 20:35
1
PCB-123
0.00000118
J
19-Oct-22 20:35
1
PCB-126
0.00000150
19-Oct-22 20:35
1
PCB-156
0.00000165
19-Oct-22 20:35
1
PCB-157
0.00000165
19-Oct-22 20:35
1
PCB-167
0.00000167
19-Oct-22 20:35
1
PCB-169
0.00000165
19-Oct-22 20:35
1
PCB-189
0.00000149
19-Oct-22 20:35
1
Toxic Equivalent
TEQMinWH02005PCB 0.0000002
Labeled Standards Type
% Recovery
Limits
Qualifiers
Analyzed
Dilution
13C-PCB-77
IS
97.4
10 - 145
19-Oct-22 20:35
1
13C-PCB-81
IS
92.2
10 -
145
19-Oct-22 20:35
1
13C-PCB-105
IS
113
10 -
145
19-Oct-22 20:35
1
13C-PCB-114
IS
109
10 -
145
19-Oct-22 20:35
1
13C-PCB-118
IS
90.4
10 -
145
19-Oct-22 20:35
1
13C-PCB-123
IS
87.3
10 -
145
19-Oct-22 20:35
1
13C-PCB-126
IS
107
10 -
145
19-Oct-22 20:35
1
13C-PCB-156
IS
113
10 -
145
19-Oct-22 20:35
1
13C-PCB-157
IS
111
10 -
145
19-Oct-22 20:35
1
13C-PCB-167
IS
105
10 -
145
19-Oct-22 20:35
1
13C-PCB-169
IS
107
10 -
145
19-Oct-22 20:35
1
13C-PCB-189
IS
116
10 -
145
19-Oct-22 20:35
1
13C-PCB-79
CRS
89.3
10 -
145
19-Oct-22 20:35
1
EDL - Sample specifc estimated detection limit
EMPC - Estimated maximum possible concentration
The results are reported in dry weight.
The sample size is reported in wet weight.
Work Order 2208275
Page 100 of 114
Page 8 of 22

V
Vista
- Enthalm AmMiml Labomt—
Sample ID: 22HO122-02: ET-S-1
EPA Method 1668C
Client Data
Laboratory Data
Name:
Enthalpy Analytical, LLC
Lab Sample: 2208275-02
Date Received:
16-Aug-22 09:15
Project:
22HO122
QC Batch: B22I219
Date Extracted:
27-Sep-22
Matrix:
Solid
Sample Size: 12.8 g
Column:
ZB-5MS
Date Collected:
27-Jul-22 13:40
% Solids: 79.3
Analyte
Cone. (mg/kg)
EDL
EMPC
Qualifiers
Analyzed
Dilution
PCB-77
ND
0.000000112
19-Oct-22 21:14
1
PCB-81
ND
0.0000000425
19-Oct-22 21:14
1
PCB-105
0.00000106
J
19-Oct-22 21:14
1
PCB-114
ND
0.0000000996
19-Oct-22 21:14
1
PCB-106/118
0.00000176
J
19-Oct-22 21:14
1
PCB-123
0.000000176
J
19-Oct-22 21:14
1
PCB-126
0.000000120
J
19-Oct-22 21:14
1
PCB-156
0.000000599
J
19-Oct-22 21:14
1
PCB-157
0.000000307
J
19-Oct-22 21:14
1
PCB-167
ND
0.000000506
19-Oct-22 21:14
1
PCB-169
ND
0.000000065
19-Oct-22 21:14
1
PCB-189
ND
0.00000014
19-Oct-22 21:14
1
Toxic Equivalent
TEQMinWH02005PCB 0.0000000121
Labeled Standards Type
% Recovery Limits
Qualifiers
Analyzed
Dilution
13C-PCB-77
IS
94.7
10 - 145
19-Oct-22 21:14
1
13C-PCB-81
IS
90.0
10 -
145
19-Oct-22 21:14
1
13C-PCB-105
IS
106
10 -
145
19-Oct-22 21:14
1
13C-PCB-114
IS
106
10 -
145
19-Oct-22 21:14
1
13C-PCB-118
IS
91.2
10 -
145
19-Oct-22 21:14
1
13C-PCB-123
IS
90.2
10 -
145
19-Oct-22 21:14
1
13C-PCB-126
IS
110
10 -
145
19-Oct-22 21:14
1
13C-PCB-156
IS
108
10 -
145
19-Oct-22 21:14
1
13C-PCB-157
IS
104
10 -
145
19-Oct-22 21:14
1
13C-PCB-167
IS
103
10 -
145
19-Oct-22 21:14
1
13C-PCB-169
IS
110
10 -
145
19-Oct-22 21:14
1
13C-PCB-189
IS
111
10 -
145
19-Oct-22 21:14
1
13C-PCB-79
CRS
93.6
10 -
145
19-Oct-22 21:14
1
EDL - Sample specifc estimated detection limit
EMPC - Estimated maximum possible concentration
The results are reported in dry weight.
The sample size is reported in wet weight.
Work Order 2208275
Page 101 of 114
Page 9 of 22

V
Vista
- Enthalm AmMiml Labotat—
Sample ID: 22HO122-03: ET-E-1
EPA Method 1668C
Client Data
Laboratory Data
Name: Enthalpy Analytical,
LLC
Lab Sample:
2208275-03
Date Received:
16-Aug-22 09:15
Project: 22HO122
QC Batch:
B22I219
Date Extracted:
27-Sep-22
Matrix: Solid
Sample Size:
12.0 g
Column:
ZB-5MS
Date Collected: 27-Jul-22 14:05
% Solids:
84.0
Analyte
Cone. (mg/kg)
EDL
EMPC
Qualifiers
Analyzed
Dilution
PCB-77
ND
0.0000000426
19-Oct-22 21:53
1
PCB-81
ND
0.0000000504
19-Oct-22 21:53
1
PCB-105
0.000000163
J
19-Oct-22 21:53
1
PCB-114
ND
0.0000000824
19-Oct-22 21:53
1
PCB-106/118
0.000000371
J
19-Oct-22 21:53
1
PCB-123
ND
0.0000000811
19-Oct-22 21:53
1
PCB-126
ND
0.0000000674
19-Oct-22 21:53
1
PCB-156
0.000000109
J
19-Oct-22 21:53
1
PCB-157
ND
0.000000081
19-Oct-22 21:53
1
PCB-167
0.000000260
J
19-Oct-22 21:53
1
PCB-169
ND
0.0000000433
19-Oct-22 21:53
1
PCB-189
ND
0.00000008
19-Oct-22 21:53
1
Toxic Equivalent
TEQMinWH02005PCB
1.000000000027.
Labeled Standards
Type
% Recovery
Limits
Qualifiers
Analyzed
Dilution
13C-PCB-77
IS
104
10 - 145
19-Oct-22 21:53
1
13C-PCB-81
IS
98.4
10 -
145
19-Oct-22 21:53
1
13C-PCB-105
IS
122
10 -
145
19-Oct-22 21:53
1
13C-PCB-114
IS
120
10 -
145
19-Oct-22 21:53
1
13C-PCB-118
IS
101
10 -
145
19-Oct-22 21:53
1
13C-PCB-123
IS
98.0
10 -
145
19-Oct-22 21:53
1
13C-PCB-126
IS
122
10 -
145
19-Oct-22 21:53
1
13C-PCB-156
IS
120
10 -
145
19-Oct-22 21:53
1
13C-PCB-157
IS
115
10 -
145
19-Oct-22 21:53
1
13C-PCB-167
IS
ill
10 -
145
19-Oct-22 21:53
1
13C-PCB-169
IS
120
10 -
145
19-Oct-22 21:53
1
13C-PCB-189
IS
129
10 -
145
19-Oct-22 21:53
1
13C-PCB-79
CRS
103
10 -
145
19-Oct-22 21:53
1
EDL - Sample specifc estimated detection limit
EMPC - Estimated maximum possible concentration
The results are reported in dry weight.
The sample size is reported in wet weight.
Page 102 of 114
Work Order 2208275 Page 10 of 22

V
Vista
- Enthalm AmMiml Labotat—
Sample ID: 22HO122-04: ET-W-1
EPA Method 1668C
Client Data
Laboratory Data
Name:
Enthalpy Analytical, LLC
Lab Sample: 2208275-04
Date Received:
16-Aug-22 09:15
Project:
22HO122
QC Batch: B22I219
Date Extracted:
27-Sep-22
Matrix:
Solid
Sample Size: 10.9
g
Column:
ZB-5MS
Date Collected:
27-Jul-22 14:30
% Solids: 93.0
Analyte
Cone. (mg/kg)
EDL
EMPC
Qualifiers
Analyzed
Dilution
PCB-77
ND
0.000000104
19-Oct-22 22:31
1
PCB-81
0.0000000870
J
19-Oct-22 22:31
1
PCB-105
ND
0.000000294
19-Oct-22 22:31
1
PCB-114
ND
0.000000102
19-Oct-22 22:31
1
PCB-106/118
0.000000897
J
19-Oct-22 22:31
1
PCB-123
ND
0.000000167
19-Oct-22 22:31
1
PCB-126
ND
0.00000014
19-Oct-22 22:31
1
PCB-156
ND
0.00000034
19-Oct-22 22:31
1
PCB-157
0.000000386
J
19-Oct-22 22:31
1
PCB-167
0.000000685
J
19-Oct-22 22:31
1
PCB-169
ND
0.000000139
19-Oct-22 22:31
1
PCB-189
ND
0.000000308
19-Oct-22 22:31
1
Toxic Equivalent
TEQMinWH02005PCB 1.000000000085.
Labeled Standards Type
% Recovery
Limits
Qualifiers
Analyzed
Dilution
13C-PCB-77
IS
99.1
10 - 145
19-Oct-22 22:31
1
13C-PCB-81
IS
96.3
10 -
145
19-Oct-22 22:31
1
13C-PCB-105
IS
120
10 -
145
19-Oct-22 22:31
1
13C-PCB-114
IS
118
10 -
145
19-Oct-22 22:31
1
13C-PCB-118
IS
95.4
10 -
145
19-Oct-22 22:31
1
13C-PCB-123
IS
92.4
10 -
145
19-Oct-22 22:31
1
13C-PCB-126
IS
121
10 -
145
19-Oct-22 22:31
1
13C-PCB-156
IS
122
10 -
145
19-Oct-22 22:31
1
13C-PCB-157
IS
115
10 -
145
19-Oct-22 22:31
1
13C-PCB-167
IS
113
10 -
145
19-Oct-22 22:31
1
13C-PCB-169
IS
117
10 -
145
19-Oct-22 22:31
1
13C-PCB-189
IS
124
10 -
145
19-Oct-22 22:31
1
13C-PCB-79
CRS
102
10 -
145
19-Oct-22 22:31
1
EDL - Sample specifc estimated detection limit
EMPC - Estimated maximum possible concentration
The results are reported in dry weight.
The sample size is reported in wet weight.
Page 103 of 114
Work Order 2208275 Page 11 of 22

V
Vista
- Enthalm AmMiml Labotat—
Sample ID: 22HO122-05: ET-B-1
EPA Method 1668C
Client Data
Laboratory Data
Name: Enthalpy Analytical,
LLC
Lab Sample: 2208275-05
Date Received:
16-Aug-22 09:15
Project: 22HO122
QC Batch: B22I219
Date Extracted:
27-Sep-22
Matrix: Solid
Sample Size: 12.1
g
Column:
ZB-5MS
Date Collected: 27-Jul-22 14:45
% Solids: 82.9
Analyte
Cone. (mg/kg)
EDL
EMPC
Qualifiers
Analyzed
Dilution
PCB-77
0.000000199
J
19-Oct-22 23:10
1
PCB-81
0.000000168
J
19-Oct-22 23:10
1
PCB-105
0.000000282
J
19-Oct-22 23:10
1
PCB-114
0.000000213
J
19-Oct-22 23:10
1
PCB-106/118
ND
0.000000686
19-Oct-22 23:10
1
PCB-123
0.000000236
J
19-Oct-22 23:10
1
PCB-126
ND
0.000000234
19-Oct-22 23:10
1
PCB-156
ND
0.000000255
19-Oct-22 23:10
1
PCB-157
0.000000281
J
19-Oct-22 23:10
1
PCB-167
0.000000325
J
19-Oct-22 23:10
1
PCB-169
ND
0.000000216
19-Oct-22 23:10
1
PCB-189
ND
0.000000228
19-Oct-22 23:10
1
Toxic Equivalent
TEQMinWH02005PCB
0.00000000011
Labeled Standards
Type
% Recovery
Limits
Qualifiers
Analyzed
Dilution
13C-PCB-77
IS
98.7
10 - 145
19-Oct-22 23:10
1
13C-PCB-81
IS
95.7
10 -
145
19-Oct-22 23:10
1
13C-PCB-105
IS
113
10 -
145
19-Oct-22 23:10
1
13C-PCB-114
IS
112
10 -
145
19-Oct-22 23:10
1
13C-PCB-118
IS
94.4
10 -
145
19-Oct-22 23:10
1
13C-PCB-123
IS
91.7
10 -
145
19-Oct-22 23:10
1
13C-PCB-126
IS
114
10 -
145
19-Oct-22 23:10
1
13C-PCB-156
IS
114
10 -
145
19-Oct-22 23:10
1
13C-PCB-157
IS
106
10 -
145
19-Oct-22 23:10
1
13C-PCB-167
IS
106
10 -
145
19-Oct-22 23:10
1
13C-PCB-169
IS
108
10 -
145
19-Oct-22 23:10
1
13C-PCB-189
IS
112
10 -
145
19-Oct-22 23:10
1
13C-PCB-79
CRS
96.1
10 -
145
19-Oct-22 23:10
1
EDL - Sample specifc estimated detection limit
EMPC - Estimated maximum possible concentration
The results are reported in dry weight.
The sample size is reported in wet weight.
Page 104 of 114
Work Order 2208275 Page 12 of 22

DATA QUALIFIERS & ABBREVIATIONS
B This compound was also detected in the method blank
Conc. Concentration
CRS Cleanup Recovery Standard
D Dilution
DL Detection Limit
E The associated compound concentration exceeded the calibration range of the
instrument
H Recovery and/or RPD was outside laboratory acceptance limits
I Chemical Interference
IS Internal Standard
J The amount detected is below the Reporting Limit/LOQ
LOD Limit of Detection
LOQ Limit of Quantitation
M Estimated Maximum Possible Concentration (CA Region 2 projects only)
MDL Method Detection Limit
NA Not applicable
ND Not Detected
OPR Ongoing Precision and Recovery sample
P The reported concentration may include contribution from chlorinated diphenyl ether(s).
Q The ion transition ratio is outside of the acceptance criteria.
RL Reporting Limit
RL For 537.1, the reported RLs are the MRLs.
TEQ Toxic Equivalency, sum of the toxic equivalency factors (TEF) multiplied by the
sample concentrations.
TEQMax TEQ calculation that uses the detection limit as the concentration for non -detects
TEQMin TEQ calculation that uses zero as the concentration for non -detects
TEQRisk TEQ calculation that uses 1/2 the detection limit as the concentration for non -
detects
U Not Detected (specific projects only)
* See Cover Letter
Unless otherwise noted, solid sample results are reported in dry weight. Tissue samples are reported in wet
weight.
Work Order 2208275
Page 105 of 1 14
Page 13 of 22

Vista Analytical Laboratory Certifications
Accrediting Authority
Certificate Number
Alaska Department of Environmental Conservation
17-013
Arkansas Department of Environmental Quality
21-023-0
California Department of Health — ELAP
2892
DoD ELAP - A2LA Accredited - ISO/EEC 17025:2005
3091.01
Florida Department of Health
E87777
Hawaii Department of Health
N/A
Louisiana Department of Environmental Quality
01977
Maine Department of Health
2020018
Massachusetts Department of Environmental Protection
M-CA413
Michigan Department of Environmental Quality
9932
Minnesota Department of Health
2211390
New Hampshire Environmental Accreditation Program
207721
New Jersey Department of Environmental Protection
CA003
New York Department of Health
11411
Ohio Environmental Protection Agency
87778
Oregon Laboratory Accreditation Program
4042-021
Pennsylvania Department of Environmental Protection
018
Texas Commission on Environmental Quality
T104704189-22-13
Vermont Department of Health
VT-4042
Virginia Department of General Services
11276
Washington Department of Ecology
C584
Wisconsin Department of Natural Resources
998036160
Current certificates and lists of licensed parameters are located in the Quality Assurance office and are available upon request.
Page 106 of 1 14
Work Order 2208275 Page 14 of 22

NELAP Accredited Test Methods
MATRIX: Air
Description of Test
Method
Determination of Polychlorinated p- Dioxins & Polychlorinated
Dibenzofurans
EPA 23
Polychlorinated Dibenzodioxins in Ambient Air by GC/HRMS
EPA TO-9A
MATRIX: Biological Tissue
Description of Test
Method
Tetra- through Octa-Chlorinated Dioxins and Furans by Isotope Dilution
EPA 1613B
GC41RMS
Brominated Diphenyl Ethers by HRGC/HRMS
EPA 1614A
Chlorinated Biphenyl Congeners in Water, Soil, Sediment, and Tissue
EPA 1668A/C
by GC/HRMS
Pesticides in Water, Soil, Sediment, Biosolids, and Tissue by
EPA 1699
HRGC/HRMS
Perfluorinated Alkyl Acids in Drinking Water by SPE and LC/MS/MS
PFAS Isotope
Dilution
Polychlorinated Dibenzo-p-Dioxins and Polychlorinated Dibenzofurans by
EPA 828OA/B
GC/HRMS
Polychlorinated Dibenzodioxins (PCDDs) and Polychlorinated
EPA
Dibenzofurans PCDFs by GC/HRMS
8290/8290A
MATRIX: Drinking Water
Description of Test
Method
Tetra- through Octa-Chlorinated Dioxins and Furans by Isotope Dilution
EPA
GC/HRMS
1613/1613B
Perfluorinated Alkyl Acids in Drinking Water by SPE and LC/MS/MS
PFAS Isotope
Dilution
Perfluorinated Alkyl Acids in Drinking Water by SPE and LC/MS/MS
EPA 537.1
Determination of Per- and Polyfluoroalkyl Substances in Drinking Water by
EPA 533
Isotope Dilution Anion Exchange Solid Phase Extraction and Liquid
Chromatography/Tandem Mass Spectrometry
Perfluorooctanesulonate (PFOS) and Perfluorooctanoate (PFOA) - Method
ISO 25101
for Unfiltered Samples Using Solid Phase Extraction and Liquid
2009
Chromatography/Mass Spectrometry
Page 107 of 114
Work Order 2208275 Page 15 of 22

MATRIX: Non -Potable Water
Description of Test
Method
Tetra- through Octa-Chlorinated Dioxins and Furans by Isotope
Dilution GC/HRMS
EPA 1613B
Brominated Diphenyl Ethers by HRGC/HRMS
EPA 1614A
Chlorinated Biphenyl Congeners in Water, Soil, Sediment, and Tissue
by GC/HRMS
EPA 1668A/C
Pesticides in Water, Soil, Sediment, Biosolids, and Tissue by HRGC/HRMS
EPA 1699
Perfluorinated Alkyl Acids in Drinking Water by SPE and LC/MS/MS
PFAS Isotope
Dilution
Dioxin by GC/HRMS
EPA 613
Polychlorinated Dibenzo-p-Dioxins and Polychlorinated
Dibenzofurans by GC/HRMS
EPA 828OA/B
Polychlorinated Dibenzodioxins (PCDDs) and Polychlorinated
Dibenzof Trans PCDFs by GC/HRMS
EPA
8290/8290A
MATRIX: Solids
Description of Test
Method
Tetra-Octa Chlorinated Dioxins and Furans by Isotope Dilution GC/HRMS
EPA 1613
Tetra- through Octa-Chlorinated Dioxins and Furans by Isotope
Dilution GC/HRMS
EPA 1613B
Brominated Diphenyl Ethers by HRGC/HRMS
EPA 1614A
Chlorinated Biphenyl Congeners in Water, Soil, Sediment, and Tissue
by GC/HRMS
EPA 1668A/C
Pesticides in Water, Soil, Sediment, Biosolids, and Tissue by HRGC/HRMS
EPA 1699
Perfluorinated Alkyl Acids in Drinking Water by SPE and LC/MS/MS
PFAS Isotope
Dilution
Polychlorinated Dibenzo-p-Dioxins and Polychlorinated
Dibenzofurans by GC/HRMS
EPA 828OAB
Polychlorinated Dibenzodioxins (PCDDs) and Polychlorinated
Dibenzofurans (PCDFs) by GC/HRMS
EPA
8290/8290A
Page 108 of 1 14
Work Order 2208275 Page 16 of 22

AIR
WATER SOIL
LABORATORIES, INC.CF
Enthalpymr�'
1104 Windfield Way
El Dorado Hills, CA 95762
CHAIN OF CUSTODY
1941 REYMET ROAD
RICHMOND, VIRGINIA 23237
[phone] PHONE
l R [phone] FAX
Chain of Custody
Form #: D1331
Rev. 1.0
Effective: Feb 14, 2014
COMPANY NAM ab
INVOICE TO: AWS LABS
PROJECT NAME/Quote #: 22HO122
CONTACT: SOspil S\e
OICE CONTACT: [e-mail]
SITE NAME:22H0122
ADDRESS:1941 Reymet Rd, Richmond, VA 23237
INVOICE ADDRESS:
PROJECT NUMBER: 22HO122
PHONE #: [phone]
INVOICE PHONE*
P.O. #:
FAX #:[phone]
EMAIL: _��� ai-eem
Pretreatment Program:
Is sample for compliance reporting? YES NO
Is sample from a chlorinated supply? YES NO
PWS I.D. #:
SAMPLER NAME (PRINT): SAMPLER SIGNATURE:
TAT: SNOCN6&(S
Matrix Codes: WW=Waste Water/Storm Water GW=Ground Water DW=Drinking Water S=Soil/Solids OR=Organic A=Air WP=Wipe OT=Other
COMMENTS
ANALYSIS / (PRESERVATIVE)
Preservative Codes: N=Nitnc Acid
C=Hydrochloric Acid S=Suffuric Acid
2
H=Sodium Hydroxide A=Ascorbic
O
5
Acid Z=Zinc Acetate T=Sodium
Thiosulfate M=Methanol
>
O
O
Ql
a)
N
CLIENT SAMPLE I.D.
o
D
c
E
co
E
oo
ate)
O
(n
(A
`5
`o v7
C)
CO)
...
E
U)
ai
(n
o
o
o
o
p o
i✓ o
0-
a)
E
m
PLEASE NOTE PRESERVATIVE(S),
M
O
O
O
coINTERFERENCE
O
N O
E
ca
CHECKS or PUMP
(7
O
LL
I c)
c)
()
c)
I—
5
I Z
d
RATE (Umin)
1) 22HO122-01: ET-N-1
X
07/27/22
1500
S
1
X
2) 22HO122-02: ET-S-1
X
07/27/22
1340
S
1
X
3) 22HO122-03: ET-E-1
X
07/27/22
1405
S
1
X
4) 22H0122-04: ET-W-1
x
07/27/22
1430
S
1
X
5) 22HO122-05: ET-B-1
x
07/27/22
1445
S
1
X
6) 22HO122-06: ET-N-2
x
07/27/22
1505
S
1
X
7) 22HO122-07: ET-S-2
x
07/27/22
1350
S
1
X
8) 22HO122-08: ET-2-E
x
07/27/22
1415
S
1
X
9) 22HO122-09: ET-W-2
x
07/27/22
1435
S
1
X
10) 22H0122-10: ET-B-2
x
07/27/22
1450
S
1
X
RELIN: ATE / TIME
RECEIVED:: DATE / TIME
QC Data Package
LAB USE ONLY COOLER TEMP °C
nQ`UISHE
/ i/ \ ( 2�i
(� y
t lip (LPS O I� S 1 L S S
Level I ❑
REL4QUI D: DATE / TIME
RE EIVED: DATE / TIME
` (
` t t
Levelll ❑
Level III ❑
RELINQUISHED: DATE / TIME
RECEIVED: DAT I TIME
Page 109 of 114
Level IV ❑
El
Work Order 2208275 Page 17 of 22

AIR
WA"IER SOI1�
LABORATORIES, INC.
Enthalpy Durham
1104 Windfield Way
El Dorado Hills, CA 95762
CHAIN OF CUSTODY
1941 REYMET ROAD
RICHMOND, VIRGINIA 23237
[phone] PHONE
[phone] FAX
2ZW75
Chain of Custody
Form #: D1331
Rev. 1.0
Effective: Feb 14, 2014
COMPANY NAME: Air, Water & Soil Labs, INC
INVOICE TO: AWS LABS
PROJECT NAME/Quote #: 22HO122
CONTACT: Katrina Cooke
INVOICE CONTACT: [e-mail]
SITE NAME:22H0122
ADDRESS:1941 Reymet Rd, Richmond, VA 23237
INVOICE ADDRESS:
PROJECT NUMBER: 22HO122
PHONE #: [phone]
INVOICE PHONE #:
P.O. #:
FAX #:[phone]
EMAIL: [e-mail]
Pretreatment Program:
Is sample for compliance reporting? YES NO
Is sample from a chlorinated supply? YES NO
PWS I. D. #:
SAMPLER NAME (PRINT): SAMPLER SIGNATURE:
TAT:
Matrix Codes: WW=Waste Water/Storm Water GW=Ground Water DW=Drinking Water S=Soil/Solids OR=Organic A=Air WP=Wipe OT=Other
COMMENTS
N
ANALYSIS
/ (PRESERVATIVE)
Preservative Codes: N=Nitric Acid
C=HydrochloncAcid S=Sulfuric Acid
c�
H=Sodium Hydroxide A=Ascorbic
O
Acid Z=Zinc Acetate T=Sodium
Thiosulfate M=Methanol
>
O
E
O
O
E
CLIENT SAMPLE I.D.
Ln
o
Q
Q
�
g
O
m
O
o
U)
�
0U)
`O�
Z
C)
U
m
ar
m
U
o
0
0
0
0o_
A
4)
'�
m
PLEASE NOTE PRESERVATIVE(S).
@
O
O
O
O
O
E
7
L)
INTERFERENCE CHECKS or PUMP
0
C)
I LL
U
C)
I (D U
(D U
1—
G
Z
(L
RATE (Umin)
1) 22HO122-11: ET-N-3
X
07/27/22
1510
S
1
X
\
2) 22HO122-12: ET-S-3
X
07/27/22
1355
S
1
X
3) 22HO122-13: ET-E-3
X
07/27/22
1420
S
1
X
4) 22H0122-14: ET-W-3
x
07/27/22
1440
S
1
X
5) 22HO122-15: ET-B-3
x
07/27/22
1455
S
1
X
6) 22HO122-16: ET-DUP
x
07/27/22
0000
S
1
X
7)
8)
9)
10)
RELINQUISHED: DATE / TIME
R CEIVED:
DATE / TIME
'o`
QC Data Package
LAB USE ONLY COOLER TEMP °C
l
Level 1 ❑
RffLINQUISYiEd: DATE / TIME
RECEIVED: DATE / TIME
Level 11 ❑
Level III ❑
RELINQUISHED: DATE / TIME
RECEIVED: DATE / TIME
Page 110 of 114
Level IV ❑
E
Work Order 2208275 Page 18 of 22

"4111� ENTHALPY
formerly Air, Water & Sail Laboratories
Vista Analytical
1104 Windfield Way
El Dorado Hills, CA 95762
CHAIN OF CUSTODY
1941 REYMET ROAD
RICHMOND, VIRGINIA 23237
[phone] PHONE
[phone] FAX
Chain of Custody
Form #: D1331
Rev. 1.0
Effective: Feb 14, 2014
COMPANY NAME: Enthalpy Analytical - S. Richmond
INVOICE TO: AWS LABS
PROJECT NAME/Quote #: 22HO122
CONTACT: Sarah Endsley
INVOICE CONTACT: [e-mail]
SITE NAME: 22HO122
ADDRESS:1941 Reymet Rd, Richmond, VA 23237
INVOICE ADDRESS:
PROJECT NUMBER: 22HO122
PHONE #: [phone]
PNVOICE PHONE #:
P.O. #:
FAX #:[phone]
EMAIL: [e-mail]
Pretreatment Program:
Is sample for compliance reporting? YES NO
Is sample from a chlorinated supply? YES NO
PWS I.D. #:
SAMPLER NAME (PRINT): SAMPLER SIGNATURE:
TAT: 5
Matrix Codes: WW=Waste Water/Storm Water GW=Ground Water DW=Drinking Water S=Soil/Solids OR=Organic A=Air WP=Wipe OT=Other
COMMENTS
N
ANALYSIS
/ (PRESERVATIVE)
Preservative Codes: N=Nitric Acid
C=Hydrochloric Acid S=Sulfuric Acid
41
H=Sodium Hydroxide A=Ascorbic
00
Acid Z=Zinc Acelale T=Sodium
p
CD
CD
Thiosulfate M=Methanol
>
O
O
O
E
O
m
Q)
E
CLIENT SAMPLE I.D.
o
m
a
Q
�
a
d
O
O
-0
a)
o
O
m
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o
a> 2
fn
0)
o
a�
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1L
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o
p 0
I,_o
a
a�
U
M
�_
Z'
(7
O
0LL
O
0
O
0(7
O
()
O
(7 0
I-
�
7
Z
L)
d
INTERFERENCE CHECKS orIPUMP
RATE (Umin)
1) 22HO122-02: ET-S-1
X
07/27/22
1340
S
1
X
2)
3)
4)
5)
6)
7)
8)
9)
10)
RELINQUISHED: DATE / TIME
RECEIVED: DATE / TIME
QC Data Package
LAB USE ONLY COOLER TEMP °C
�} 4 C7�
�
1 1 1 p�
� � —�
Level I ❑
RELINQUISHED'. DATE I TIME
RECEIVED: bATE / TIME
0 ;
Level 11 ❑
Level111 ❑
Page 111 of 114
RELINQUISHED: DATE / TIME
RE I D: DATE / TIME
E
Work Order 2208275 Page 19 of 22

Vista
Anofytkal Laboratory
Sample Log -in Checklist
Page # I of / 2
Vista Work Order #: ZZO 6L- I TAT SiU
Date/Time
Initials:
Location: W R -a
Samples
Arrival:
`�(� I I r' +
�r J
NIA
Shelf/Rack:
Delivered By:
FedEx
UPS
On Trac
GLS
DHL
Hand
Delivered
Other
Preservation:
Ice
Blue Ice
Techni
Ice
Dry Ice
None
Temp °C: (uncorrected)
Probe used: Y /�
Thermometer ID:
Temp °C: 1 (corrected)
Shipping Containers Intact?
YES
NO
NA
Shipping Custody Seals Intact?
Airbill
Trk # Sn loy3l� 3���n�
Shipping Documentation Present?
Shipping Container
Vista
lient
Retain
Return
Dispose
Chain of Custody / Sample Documentation Present?
Chain of Custody / Sample Documentation Complete?
Holding Time Acceptable?
Logged In:
Date/Time l
0$ I22��2 111 0
Initials:
W
Location: �� Z
Shelf/Rack:
COC Anomaly/Sample Acceptance Form completed?
Comments:�
ID.: LR — SLC Rev No.: 6 Rev Date: 0711612020 Page: 1 of 1
Page 112 of 114
Work Order 2208275 Page 20 of 22

Vista
Anc ryticol Loborotory
Sample Log -In Checklist
Page # of
Vista Work Order #: ' vTAT �I
Date/Time
Initials:
Location: �_/ A _ I
Samples
l, ; i,
t►►``�r
Arrival:
61 j�51z1
aA G
Shelf/Rack:
Delivered By:
FedE
UPS
On Trac
GLS
DHL
Hand
Delivered
Other
Preservation:
Ice
Blue Ice
TeCenl
Dry Ice
None
Temp °C: � (uncorrected)
Probe used: Y /©
Thermometer ID:
Temp °C: (corrected)
YES
NO
NA
Shipping Containers Intact?
Shipping Custody Seals Intact?
'-7
Airbill
I Trk # 5
,54
Shipping Documentation Present?
Shipping Container
Vista
Clien
Retain
eturn
Dispose
Chain of Custody / Sample Documentation Present?
Chain of Custody/ Sample Documentation Complete?
Holding Time Acceptable?
Logged In:
Date/Time I
�`�IZ�I
1
Initials:
�,�J
Location: �� L
i�
Shelf/Rack: �_ v
COC Anomaly/Sample Acceptance Form completed?
Comments: 30 s�MO reCdUGII is �6 Uplac�ma�t
9�
�l oq6/2. IM c0a
ID.: LR - SLC
Rev No.: 6 Rev Date: 0711612020 Page: 1 of 1
Work Order 2208275
Page 113 of 114
Page 21 of 22

LabNumber CoC Sample ID
CoC/Label Reconciliation Report WO# 2208275
Sample
SampleAiias Date/rime
2208275-0I A 22HO122-01: ET-N-1 d
2208275-02 A 22HO122-02: ET-S-1
2208275-03 A 22HO122-03: ET-E-1
2208275-04 A 22HO122-04: ET-W- I
2208275-05 A 22110122-05: ET-B-1
Checkmarks indicate that information on the COC reconciled with the sample label.
Any discrepancies are noted in the following columns.
Yes
No
NA
Sample Container Intact?
a
J
Sample Custody Seals Intact?
Adequate Sample Volume?
Container Type Appropriate for Analysis(es)
®t/
Preservation Documented: Na2S203 Trizma NH4CH3CO2 one Other
au 1
IIffII''�� 23 22 (.or4g�n�1���W11 Iab�`ed 08 f 22J
Verifed by/Date: NWJ
Container BaseMatrix Sample Comments
27-3u1-22 15:00
Clear Glass Jar, 250mL
Solid
27-Jul-22 13:40
©
Clear Glass Jar, 250mL
Solid
27-1ul-22 14:05
Clear Glass Jar, 250mL
Solid
27-Jul-22 14:30
Clear Glass Jar, 250mL
Solid
27-1ul-22 14:45
Clear Glass Jar, 250mL
Solid
Comments: ®g��14� ��'� brole Sample car�a'��tr but ti�sl�� ZiQ1aC b� at labt�i��
� samples re�'d �� clear glass�a�'
Q mWbd back VOW o
Printed: 8/23/2022 7:39:03AM 2208275
Work Order 2208275
Page 114 of 114
Page 22 of 22

Appendix II
Field Notes

s
ReportEnvironmental Field
Date: Job Number:
December 19 and 20, 2022 218154A
Project Name:
Weather/Temperature:
Welcome Venture Park/Eno Industrial
Sunny, 40 °F
Park
Brownfields Project No. 25097-21-032
Project Location:
Durham, Durham County, North Carolina
Notes By:
Present at the Site:
®
Benjamin Kelly
El
On December 19, 2022, S&ME personnel Benjamin Kelly visited the Welcome Venture Park/Eno Industrial
Park project in Durham, North Carolina to observe the removal of PCB -contaminated soil in the area
identified in the Work Plan and Technical Report.
S&ME personnel arrived to stake out the area where confirmatory soil samples were taken to demarcate
the total area of soil to be excavated. S&ME personnel met EVO Corporation, Inc. (EVO) personnel on site
to observe the removal of soil and document the process. The total area was approximately 20 feet by 25
feet by a minimum of one foot in depth. Some areas were over -excavated to deeper than 12 inches,
totaling approximately 15 to 16 inches.
Mechanical malfunctions with the backhoe equipment caused the soil removal to continue into December
20, 2022. Two tandem-axel trucks were loaded with the contaminated soil and taken to the Republic
Services Upper Piedmont Landfill in Rougemont, North Carolina.
Attachments:
Non -Hazardous Waste Manifest, Photographs
S&ME, Inc. I www.smeinc.com

Appendix III
Photographic Log

Memorandum — Excavation and Disposal of PCB -Impacted Soils
Welcome Venture Park / Eno Industrial Park
Durham, Durham County, North Carolina
SWE Project No. 218154A / Brownfield Project No. 25097-21-032
r
y
yo
_ Alt.% �I ��i �iG€"
A <: "t.
•
NO
�^ M
z - aaara. ry
Location Orientation
View of •
in July 2022.
,Jk
"1 ;A
to
n1
nAL
A
'z
w.:.
Location Orientation•
•excavatorutilized for •
January 20, 2023

Memorandum — Excavation and Disposal of PCB -Impacted Soils
Welcome Venture Park / Eno Industrial Park
Durham, Durham County, North Carolina
SWE Project No. 218154A / Brownfield Project No. 25097-21-032
S
'_•�, r
i
� I
!
U;
•
f
Location Orientation
View of the abandoned electrical transformer and wood pole.
January 20, 2023

Memorandum — Excavation and Disposal of PCB -Impacted Soils
Welcome Venture Park / Eno Industrial Park
Durham, Durham County, North Carolina
SWE Project No. 218154A / Brownfield Project No. 25097-21-032
N
N
O
N
N
Y
14
' 4gatvsir
�T '�-� �,.�� 'ai 4• � .,� "1..-, ,,der -,. 'C
N - - -
XASti �a' ;R_ � S 4 •• y� 'i'.`L t��. :Y" i� FJ" ., �
F"4" `46e Y i
O
L
a
Location / Orientation View of final over -excavated area.
tJ
Remarks
January 20, 2023 iii

Appendix IV
Non -Hazardous Waste Manifest

OWN �V�
CORPORATION
1703 Vargrave Street
Winston-Salem, NC 27107
ph 336-725-5844
fax [phone]
CERTIFICATE OF DISPOSAL
Evo Corporation does hereby certify that 35,41 trans of non -hazardous
contaminated material received on 12/19 and 12/20/2022 from:
Generator: Welcome Venture Park
Originating at: 1225 Hamlin Road
Durham, NC
EC Waste ID 4: 122222
has been disposed of by Evo Corporation in a manner approved by the North
Carolina Department of Environmental Quality.
Signature
Thomas W. Hammett
CEO
Evo Corporation
www.evocorp.net 3 F X1F ¢ F" +" i q

4F REPU13LI'C NON -HAZARDOUS SPECIAL. WASTE & ASBESTOS MANIFEST
to SERVICES, INC.
If waste is asbestos waste, complete Sections I, 11, tl l and 1V
If waste is NOT asbestos waste, complete Sections I, 11 and III
1. GENERATOR (Generator comoletes la-6
a. Generators US SPA ID Number
b. Manifest Document Number
c. Page 1 of
1216222
d. Generator's Name and Location;
e, Generator's Mailing Address:
Welcome Venture Park, LLC
Welcome Venture Park, LLC
1224 Hamlin Road
5858 Westheimer, Suite 800
Durham, NC 27704
Houston, TX 77067
f. Phone:[phone]
ti. Phone:[phone]
If owner of the generating facility differs from the generator, provide:
h. Owner's Name;
I. Owner's Phone No_:
j. Waste Profile #
k. Exp. Date
1. Waste Shipping Name and
m. Containers
n. Total
o. Unit
Description
Quantity
WWa1
No.
Type
30382216967
12/8/2023
Soil with Non -Hazardous PCBs
1
RO1DT
I� / pp
7 v�
f-AM
GENERATOR'S CERTIFICATION: I hereby certify that the above named material Is not a hazardous waste as defined by 40 CFR 261 or any applicable
state law, has been properly described, classified and packaged, and Is in proper condition for transportation according to applicable regulations; AND, if this
waste Is a treatment residue of a previously restricted hazardous waste subject to the Land Disposal Restrictions. I certify and warrant that the waste has
been treated in accordance with the requirements of 40 CFR 268 and is no lonqeE a hazardous waste as defined by 40 CFR 261.
P. Generator Authorize A ent Name Print
. Siartature
r. Date
!t. I mmrvarum I r:rc tt enaraior completes na-0 ana I ranspofier completes llc-e)
a. Transporter's Name and Address:
EVO Corporation
7535 Styers Ferry Road
Clemmons, NC 27012
b. Phone: [phone]
III. DESTINATION (Generator comolete Ilia-c and Destination Site comn[etes Illd-al
a. Disposal Facility and Site Address:
c. US EPA Number
d. Discrepancy Indication Space:
Upper Piedmont Environmental LF
NIA
9650 Oxford Read
Rougemont, NC 27572
b. Phone: [phone]
I herby certify that the above named material has been a led and to the beshpf my knowledge the fare
Ing is tru2 and accurate.
`
I;I--2a
e. Name of Auth Ized A ent Print f. i to
Qate
IV. ASBESTOS (Generator completes [Vadf and Operator kromolete ]Va-i)
a. Operator's Name and Address:
c. Responsible Agency Name and Address:
NIA
NC Department of Health and Human Services - Health Hazards CU
1912 Mail Service Center
Raleigh, NC 27699-1912
b. Phone:
d. Phone:[phone]
e. Special Handling Instructions and Additional Information:
fo ❑ Friable ❑Non -Friable ❑ Both % Friable % Non -Friable
OPERATOR'S CERTIFICATION: I hereby declare that the contents of this consignment are fully and accurately described above by proper shipping name
and are classified, packed, marked and labeled and are in all respects in proper condition for transport by highway according to applicable International and
national governmental regulations.
Operator's Name and Title Print
h. Signature
I. Date
"Operator refers to the company which owns, leases, operates, controls, or supervises the facility being demolished or renovated, or the demolition or
renovation operation or both

o REPUBLIC NON -HAZARDOUS SPECIAL. WASTE & ASBESTOS MANIFEST
#34.� SERVICES, INC.
If waste Is asbestos waste, complete Sections 1, It III and IV
If waste is NOT asbestos waste, complete Sections I, 11 and III
1. GENERATOR (Generator completes la-r)
a. Generator's US EPA ID Number
b. Manifest Document Number c. Page 1 of
1216221
d. Generator's Name and Location:
e. Generator's Mailing Address:
Welcome Venture Park, LLC
Welcome Venture Park, LLC
1224 Hamlin Road
5858 Westheimer, Suite 800
Durham, NC 27704
Houston, TX 77057
f. Phone:[phone]
q, Phone:[phone]
If owner of the generating facility differs from the generator, provide:
h. Owner's Name:
1. Owner's Phone No.:
j. Waste Profile #
k. Exp. Date
t. Waste Shipping Name and
m. Containers
n. Total
o, Unit
Description
Quantity
WWol
No.
Type
30382216967
12I8I2023
Soil with Non -Hazardous PCBs
1
ROIDT
3'1, 3.20
GENERATOR'S CERTIFICATION: I hereby certify that the ,ghove named material is not a hazardous waste as defined by 40 CFR 261 or any applicable
state law, has been properly described, classified and paclfnged, and is in propel band€t€aWfor transportation according to applicable regulations; AND, if this
waste is a treatment residue of a previously restricted hazardous waste subject to the Land Disposal Restrictions. I certify and warrant that the waste has
been treated in accordance with the requirements of 40 CFR 268 and is no longer a haz rdous waste as defined bV 40 CFR 261.
P. Generator Authorized A en Name (Print)
q, Si nature '
r. pate
If. I KAN51'VK I tK (uenerator completes Ila-t) anti I ransporter completes ttc-e)
a. Transporter's Name and Address:
EVO Corporation
7535 Styers Ferry Road
Clemmons, NC 27012 A
/Z /tg/z
e. Date
III. DESTINATION (Generator complete Illa-c and Destination Site completes Illd-g)
a. Disposal Facility and Site Address: c,•US EPA Number d. Discrepancy
Indication Space:
Upper Piedmont Environmental t.F
NIA
9650 Oxford Road
Rougemont, NC 27572
b. Phone: [phone]
I herb ifv that the aboyafiamed material has been ac fed and to the/pest of my
knowledge the €ore Inq is true and accurate.
e. Name of Auth rized A t rint)
o. Date
IV. ASBESTOS (Generator completes IVa4 and Operator complete IVq-1)
a. Operator's Name and Address:
c. Responsible Agency Name and Address:
NIA
NC Department of Health and Human Services - Health Hazards CU
1912 Mail Service Center
Raleigh, NC 27699-1912
b, Phone:
d. Phane:919-707-5950
e. Special Handling instructions and Additional Information:-°
f. ❑ Friable 0 Non -Friable Both % Friable %Non Friaii€e
OPERATOR'S CERTIFICATION: I hereby declare that the contents of this consignment are fully and accurately described above by proper shipping name
and are classified, packed, marked and labeled and are in all respects Inproper condition for transport by highway according to applicable international and
national governmental regulations.
Operator's Name and Title Print --
h. -Signature
i. pate
`Operator refers to the company which awns, leases, operates, controls, or supervises the facility being demolished or renovated, or the demolition or
renovation operation or both

EtTE UPPER PIRMONT ENVIRONMENTAL 336-364-3699
9650 OXFORD °lb-ROUGEMONT, NC 27572
EVO CORPORATION
7535 STYERS FERRY ROAD
CLEMMONS, NO 27012
Contract:30382216967
Generator:Welcome Venture Park, LLC
SCALE IN GROSS WEIGHT 61,200 NET TONS 16.75
SCALE OUT TARE WEIGHT 27,700 NET WEIGHT 33,500
a ATY. ;: :lJtt€T DESCR€FTSON
0.00 Yn Tracking QTY
16.75 to SW-CONT SOIL origi.n:RURHA14 100%
TICKET #
RM
DATEMME 19 2 / 2 0 / 2 2 12:34 pm'oATE1It; AXW22 1:03 pm
VEHICLE 103 CONTAINER
i
REFERENCE 12_
OILL OF LADING
Signature
Indemnificatfon. Customer agn=_es to Indemnify, hold harmless, and defend Ftepubiic Service o North
Carolina, LLC, Its Subsidiaries, affiliates, employees, officers and directors from and against any and all
liabilities, claims, penalties, forfeitures, suits and the costs and expenses incident thereto, including costs of
defense, settlement, and reasonable attorney's fees, which may be Incurred, as a result of death or injuries to
any person, or damage to any property, contamination of or adverse effects on the environment, caused in
wholB or inTari b f e Customer, Its employees, or subcontractors in disposing waste at this Facility. In the
The an ers.g ndividua€ signing this do ument on behalf of Customer at nova€edges that he or she has read and understands the terms and coadlt€ons
on the reverse side and that he or she has the authority to s€gn this document an behalf of the customer.
RS-FG42UPR2 (12-20) SIGNATURE
INVOICE
CHANGE
CHECK9

TICKET #
VEHICLE
WILL OF LADING
NET TONS 18.66
NET WEIGHT 37,320
a:Ij pin
- i CL1NTAINFR
1B.6ten SW-CONT SOIL Origin:IDURHAM 100%
I �
Signature €
Indemnification. Customer agrees to Indemnify, hold harmless, and defend Republic Service of ort
Carolina, LLC, its Subsidiaries, affiliates, employees, officers and directors from and against any and all
liabilities, claims, penalties, forfeitures, suits and the casts and expenses Incident thereto, Including costs of
defense, settlement, and reasonable attorney's fees, which may be incurred, as a result of death or injuries to
any person, or damage to any properly, contamination of tolr adverse effects on the environment, caused in
whop®r ndeistgn J`1.edRVA1q ePr,,I.I9 thlspeaCumenI onbehai f customer alcknowlOges thatahe or she hlats readtand understands the terms and conditions
on the reverse side and that he or she has the authority to sign this document can behalf of the customer.
RS-FO42UPR2 (12-20) SIGNATURE
INVOICE
CHECK#