NC0083887_Monitoring (Report)_20240117

NX Is I )
January 17, 2024
Mr. James P. McDorman, P.G.
Environmental Compliance Coordinator
Charlotte Douglas International Airport
5601 Wilkinson Boulevard
Charlotte, North Carolina 28208
Subject: Surface Water Sampling and Analysis Report (Fourth Quarter)
Former U.S. Airways Maintenance Hangar
NCDEQ UST Section Incident No. 14908
5020 Hangar Road
Charlotte, North Carolina
WSP Project: 6228-24-0007
Dear Mr. McDorman:
WSP USA Environment & Infrastructure Inc. (WSP) is pleased to submit this Surface Water Sampling and Analysis
Report for the above -referenced property in Charlotte, North Carolina. Included in this report is an outline of our
understanding of the project background, description of the sampling activities and results.
Project Background
U.S. Airways, Inc. (U.S. Airways) previously operated an aircraft jet fuel defueling/refueling system at the former
U.S. Airways Maintenance Hangar located at 5020 Hangar Road in Charlotte, North Carolina. The site is located in
the southwest portion of the Charlotte/Douglas International Airport property (Tax Parcel ID 115-211-05).
American Airlines (formerly U.S. Airways) currently leases the maintenance hangar facility from the City of
Charlotte and performs aircraft maintenance at the property. A 1995 release of petroleum occurred at the hangar
location. In December 2018, CLT personnel observed evidence of petroleum seepage from the bank of Coffey
Creek approximately 800 feet north of contaminant source area (Figure 1).
In email correspondence, dated May 13, 2021, Mr. James McDorman informed WSP personnel that Mr. Wes Bell
of the North Carolina Department of Environmental Quality (NCDEQ), Division of Water Resources (DWR)
requested performance of quarterly surface water sampling and analysis of Coffey Creek to assess whether
dissolved petroleum hydrocarbons are present in the stream.
Surface Water Sampling and Analysis
On December 11, 2023, WSP personnel collected one surface water sample (SW-1) from Coffey Creek. The sample
was collected using a stainless -steel cup attached to a stainless -steel rod. This device allows for the water sample
to be dipped from near the center of the stream by the sampler. The sampling cup was decontaminated prior to
use by rinsing with isopropyl alcohol, followed by distilled water.
WSP USA Environment & Infrastructure Solutions Inc.
2801 Yorkmont Road, Suite 100
Charlotte, North Carolina 28208
NC Geology License: C-247
T: 704-417-5152

Surface Water Sampling and Analysis Report
Former U.S. Airways Maintenance Hangar
WSP Project: 6228-24-0007
January 17, 2024
Sample SW-1 was collected approximately 20 feet downstream of the last petroleum absorbent boom. The
location is shown on Figure 1. The collected sample was poured into laboratory -provided containers with
appropriate preservatives. The sample containers were placed in an ice -filled sample cooler and delivered to
Waypoint Analytical, LLC (Waypoint) in Charlotte, North Carolina for analysis. The sample was maintained under
chain -of -custody protocol. The laboratory analyzed the surface water sample for volatile organic compounds
(VOCs) by EPA Method 6200B including MTBE and semi -volatile organic compounds (SVOCs) by EPA Method
625.1.
Results
The results of the analyses of sample SW-1 identified detectable concentrations of benzoic acid, benzyl alcohol,
acetone, and methyl -ethyl -ketone (MEK). Benzoic acid was identified in the water sample at a concentration of
11.0 u g/L. Benzoic acid is typically not associated with jet fuel. This concentration of benzoic acid did not exceed
the NCAC "26" Standard of 9000 µg/L (Class C: Aquatic Life & Secondary Recreation). Benzyl alcohol was identified
in the water sample at a concentration of 9.7 µg/L. Benzyl alcohol is also not typically associated with jet fuel, but
can be used as an effective thermal stabilizer for jet fuels when combined with ethanol. This concentration of
benzyl alcohol did not exceed the NCAC "26" Standard of 500 µg/L (Class C: Aquatic Life & Secondary Recreation).
Acetone and MEK have been discovered to be common laboratory artifacts. It is WSP's opinion that the presence
of benzoic acid, benzyl alcohol, acetone, and MEK is likely unrelated to the contaminants (i.e., jet fuel) known to be
present at the subject property. The laboratory report is attached. The next surface water sampling event is
planned for March 2024.
Closing
We appreciate your selection of WSP for this project and look forward to assisting you further on this project. If
you have questions, please contact us.
Sincerely,
WSP USA Environment & Infrastructure Inc.
4_1_4__I_�;�____�
Robert Baker
If. TEP �# I Z
Robert C. Foster, L.G.
Tech Professional 1 Geologist
Registered, NC #1335
��jy4�
c 2Q`j �GENSE
Cc: Mr. Wes Bell, Senior Environmental Specialist, NCDEQ Division of Water Resufce§�� p
'
Mr. Dan Bowser, LG, Hydrogeologist, NCDEQ-DWM; UST Section
1335
`:.�,�Fo Ste,-�;.•'
•-.
F . hoc++. -tip,.
`'RT C. Fay
Enclosures

Surface Water Sampling and Analysis Report
Former U.S. Airways Maintenance Hangar
WSP Project: 6228-24-00 0 7
TABLE
January 17, 2024

Table 1
Summary of Surface Water Analytical Results
Charlotte Douglas International Airport
Former U.S. Airways Maintenance Hangar
WSP Project No. 6228-24-0007
Analytical Method
SVOCs by EPA 625.1
VOCs by Method 6200E
C
S
S
le
Z
2
a
$
zl
Contaminant of Concern
A
<
m
o
00
Lw
r
n
x
-
c
w
m
_
F
o
a
a
m
m
m
s
5
z'
E
o
Approximate
Distance from
Sample
Date
Source
Stream Bank
ID
Sampled
LNAPL Seepage
(feet)
SW-01
9/27/23
Petroleum
<0.302
<0.297
1.82J
1.54J
<2.49
2.80J
2.03J
<1.10
<0.684
2.07
2.28
<0.250
<0.807
2.12
<0.728
<1.80
<0.180
<0.190
<0.220
<0.190
<0.210
<0.500
<0.170
<0.180
<0.710
<0.140
<0.470
<0.220
<0.420
Seep to
100
J,0.210
SW-1
12/11/23
Coffrey Creek
<0302
<0.297
<0.637
<1.02
<2.49
<1.01
<1.99
11.0
9.70
<0.405
<0.434
<0.250
<0,807
<0.477
<0.728
3.021
<0.180
<0.190
<0.220
<0.190
<0.210
<0.500
<0.170
<0.180
0.7751
<0.140
<0.470
<0.220
<0.420
NC 2B Standard or EPA National Criteria (µg/0
60
NE
0.1
0.05
0.0311•
0.0311•
0.0311•
9.000
Notes
t. Concennations shown in micrograms per liter (pg/ry
2. < value represents no laboratory deteRion above the Reporting Limit
3.eold values exceeded North Carolina 15A 29 Water quality Standards or Surface Waters(NC 28)/North Carolina In -Stream Target VMl My 2021
a. If the NC 2B Standard was not enablished for a constituent, North Carolina In -Stream Target Values were used in place
5. NE = Not Established
6.' =15A N,- 2B and Nonh Carolina In -Stream Taret Values Frefi Water Aq-k Life values were rwt listed, 16A NCAC 2B Human Health values for total P-
TVO = Volatile Organic Compounds
9.1=1-flag, value was deterred above Enethod oeteaion Umit (MOQ but below method Qoantnation Limn (MOL) and is considered an estimate
Prepared by. N8118124
Renewed by. RCF 1/10/24

Surface Water Sampling and Analysis Report
January 10, 20 24
Former U.S. Airways Maintenance Hangar
WSP Project: 6228-24-00 0 7
FIGURE

Former Oil Seep Location
Legend
9` groundwater monitor) e
F^
Approximate location of
;�� .. BMW-8,:. ,. � �� MW-6 `•"''`��+,a1�li� '4 � gro monitoring well
Sample Location
Approximateface Water
.... ri
F f f l Creeks/Streams
16
t t f { 4 M W 1
;`.,. ti
MW-5
.. L
WAN
Free Product
.. - ,.✓;?'fir � ..
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x
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PMW 17
.01
r RW-4
�1RW-5 RW-7
0 75 150
""%,, Feet
PMW-12 -•-*
1 inch = 150 feet
y
FORMER US AIRWAYS
Y + MAINTENANCE HANGAR
i FA r e Greensba
At If 0
North
Carolim
,:; i reenville aC�
A. > Service A16Layer Credits: Mecklenburg County GIS Aerial Imagery 202�2
A1% Columbia
Title: Date: Projection: Figure:
" WSP USA 1/18/2024
Environment &Infrastructure Inc. SITE PLAN NC State Plane (NAD83, feet)
Note: This map is for FORMER U.S. AIRWAYS
2801 Yorkmont Road, Suite 100 reference only. MAINTENANCE HANGAR Project No: File:
Charlotte, NC 28208
[phone] CHARLOTTE, NORTH CAROLINA 6228-24-0007 UMant.Hngarr\13GIS\WorkLinga\WorkngDataaprx 2Da12021\6228-21-0061
AA
Esri, TomTom, Garmin, FAO, NOAA, USGS, EPA, USFWS, Esri, USGS 2021 Drawn hv- KNS - Checked hv, RCF - Date, 1 /1 R/2024

Surface Water Sampling and Analysis Report
January 10, 20 24
Former U.S. Airways Maintenance Hangar
WSP Project: 6228-24-00 0 7
ATTACHMENT
LABORATORY ANALYTICAL REPORT AND CHAIN -OF -CUSTODY FORM

Waypointo
ANALYTICAL
12/19/2023
WSP USA Envi. & Infrastructure Inc. (Charlotte)
Rob Foster
2801 Yorkmont Rd. #100
Charlotte, NC, 28208
Ref: Analytical Testing
Lab Report Number: 23-345-0008
Client Project Description: CDIA - Coffey Creek
Project #6228-21-0061.09
Dear Rob Foster:
449 5pringbrook Rd, Charlotte, NC 28217
Main 704.529.6364
www.waypointanalytical.com
Waypoint Analytical, LLC (Charlotte) received sample(s) on 12/11/2023 for the analyses presented in the
following report.
The above referenced project has been analyzed per your instructions. The analyses were performed in
accordance with the applicable analytical method.
The analytical data has been validated using standard quality control measures performed as required by the
analytical method. Quality Assurance, method validations, instrumentation maintenance and calibration for all
parameters were performed in accordance with guidelines established by the USEPA (including 40 CFR 136
Method Update Rule May 2021) unless otherwise indicated.
Certain parameters (chlorine, pH, dissolved oxygen, sulfite...) are required to be analyzed within 15 minutes of
sampling. Usually, but not always, any field parameter analyzed at the laboratory is outside of this holding time.
Refer to sample analysis time for confirmation of holding time compliance.
The results are shown on the attached Report of Analysis(s). Results for solid matrices are reported on an as -
received basis unless otherwise indicated. This report shall not be reproduced except in full and relates only to
the samples included in this report.
Please do not hesitate to contact me or client services if you have any questions or need additional information.
Sincerely,
Danyale Love
Project Manager
Laboratory's liability in any claim relating to analyses performed shall be limited to, at laboratory's option, repeating the
analysis in question at laboratory's expense, or the refund of the charges paid for performance of said analysis.
Page 1 of 26

Waypoint.0
ANALYTICAL
449 Springbrook Rd, Charlotte, NC 28217
Main 704.529.6364
www.waypointana lyti ca Isom
Certification Summary
Laboratory ID: WP CNC: Waypoint Analytical Carolina, Inc. (C), Charlotte, NC
State
Program
Lab ID
Expiration Date
North Carolina
State Program
37735
07/31/2024
North Carolina
State Program
402
12/31/2023
South Carolina
State Program
99012
07/31/2024
South Carolina
State Program
99012
12/31/2023
Page 1 of 1 00016/23-345-0008
Page 2 of 26

Waypoint. (2) 449 Springbrook Rd, Charlotte, NC 28217
Main 704.529.6364
ANALYTICAL www.waypointana lyti ca I som
Sample Summary Table
Report Number: 23-345-0008
Client Project Description: CDIA - Coffey Creek
Project #6228-21-0061.09
Lab No Client Sample ID Matrix Date Collected Date Received
91478 Sw-1 Aqueous 12/11/2023 09:20 12/11/2023 10:18
Page 3 of 26

(2)
Waypoint. 449 Springbrook Rd, Charlotte, NC 28217
Main 704.529.6364
ANALYTICAL www.waypointana lyti ca I som
Summary of Detected Analytes
Project: CDIA - Coffey Creek
Report Number: 23-345-0008
Client Sample ID Lab Sample ID
Method Parameters Result Units Report Limit Analyzed Qualifiers
SW-1
V 91478
6200B
Acetone
6200B
Methyl Ethyl Ketone (MEK)
625.1
Benzoic Acid
625.1
Benzyl alcohol
3.02
0.775
11.0
9.70
pq/L
1.80
12/12/2023 22:29 J
Ng/L
0.710
12/12/2023 22:29 J
uq/L
1.10
12/18/2023 20:55
pg/L
0.684
12/18/2023 20:55
Page 4 of 26

Waypointo
ANALYTICAL
449 5pringbrook Rd, Charlotte, NC 28217
Main 704.529.6364
www.waypointanalytical.com
Client: WSP USA Envi. & Infrastructure Inc. (Charlotte) CASE NARRATIVE
Project: CDIA - Coffey Creek
Lab Report Number: 23-345-0008
Date: 12/19/2023
625.1 - Base/Neutrals and Acids by GC/MS Method 625.1
Analyte: 1,2,4-Trichlorobenzene
QC Batch No: V4147ON41442
This target analyte was flagged for recoveries outside QC limits in the associated LCS/LCSD. Data for this
analyte is flagged "M" to indicate that results should be considered minimum concentration due to the potential for
a low bias.
Analyte: 2-Chloronaphthalene
QC Batch No: V4147ON41442
This target analyte was flagged for recoveries outside QC limits in the associated LCS/LCSD. Data for this
analyte is flagged "M" to indicate that results should be considered minimum concentration due to the potential for
a low bias.
Analyte: Benzidine
QC Batch No: V41470/V41442
This target analyte was flagged for recoveries outside QC limits in the associated LCS/LCSD. Data for this
analyte is flagged "M" to indicate that results should be considered minimum concentration due to the potential for
a low bias.
Relative Percent Difference (RPD) for the duplicate analysis was outside of the allowable QC limits.
Analyte: Benzoic Acid
QC Batch No: V41470/V41442
CCV fails high for this compound. All other QC passes within method parameters. Hits considered estimated.
Volatile Organic Compounds - GC/MS Method 6200B
Analyte: 2-Butanone
QC Batch No: V41230/V41227
LCS/LCSD fails high for this batch. Hits estimated high.
Analyte: Acetone
QC Batch No: V4123ON41227
LCS/LCSD fails high for this batch. Hits estimated high.
Analyte: Chloromethane
QC Batch No: V41230/V41227
Recovery for the LCS exceeded the upper acceptance limit. All sample results associated with the batch are
below the MQL, so this high bias had no impact upon the client data. Results are considered to be acceptable.
Analyte: Di isopropyl ether
QC Batch No: V41230/V41227
LCS/LCSD fails high for this batch. Hits estimated high.
Analyte: Vinyl chloride
QC Batch No: V4123ON41227
Recovery for the LCS exceeded the upper acceptance limit. All sample results associated with the batch are
below the MQL, so this high bias had no impact upon the client data. Results are considered to be acceptable.
Page 5 of 26

Waypoint.0
ANALYTICAL
01223
WSP USA Envi. & Infrastructure Inc. (Charlotte) Project
Rob Foster
449 Springbrook Rd, Charlotte, NC 28217
Main 704.529.6364
www.waypointana lyti ca Isom
CDIA - Coffey Creek
2801 Yorkmont Rd. #100 Information : Project #6228-21-0061.09
Charlotte , NC 28208
Report Number : 23-345-0008
REPORT OF ANAL YSIS
Report Date : 12/19/2023
Received : 12/11/2023
Lab No : 91478
Matrix: Aqueous
Sample ID: SW-1
Sampled:
12/11/2023
9:20
Analytical Method: 6200B
Prep Batch(es):
V41227
12/12/23 14:00
Prep Method: 6200 PT
Test
Results
Units
MDL
MQL
DF
Date / Time
By
Analytical
Analyzed
Batch
Acetone
3.023
Ng/L
1.80
10.0
1
12/12/23 22:29
MSA
V41230
Benzene
<0.180
u9/L
0.180
0.500
1
12/12/23 22:29
MSA
V41230
Bromobenzene
<0.210
N9/L
0.210
0.500
1
12/12/23 22:29
MSA
V41230
Bromochloromethane
<0.420
u9/L
0.420
1.00
1
12/12/23 22:29
MSA
V41230
Bromodichloromethane
<0.160
N9/L
0.160
0.500
1
12/12/23 22:29
MSA
V41230
Bromoform
<1.50
u9/L
1.50
5.00
1
12/12/23 22:29
MSA
V41230
Bromomethane
<0.280
N9/L
0.280
1.00
1
12/12/23 22:29
MSA
V41230
n-Butylbenzene
<0.180
u9/L
0.180
0.500
1
12/12/23 22:29
MSA
V41230
sec -Butyl benzene
<0.200
N9/L
0.200
0.500
1
12/12/23 22:29
MSA
V41230
tert-Butyl benzene
<0.920
u9/L
0.920
2.00
1
12/12/23 22:29
MSA
V41230
Carbon Tetrachloride
<0.180
N9/L
0.180
0.500
1
12/12/23 22:29
MSA
V41230
Chlorobenzene
<0.190
u9/L
0.190
0.500
1
12/12/23 22:29
MSA
V41230
Chlorodibromomethane
<0.190
N9/L
0.190
0.500
1
12/12/23 22:29
MSA
V41230
Chloroethane
<0.430
u9/L
0.430
1.00
1
12/12/23 22:29
MSA
V41230
Chloroform
<0.220
N9/L
0.220
0.500
1
12/12/23 22:29
MSA
V41230
Chloromethane
<0.220
u9/L
0.220
0.500
1
12/12/23 22:29
MSA
V41230
2-Chlorotoluene
<0.200
N9/L
0.200
0.500
1
12/12/23 22:29
MSA
V41230
4-Chlorotoluene
<0.200
u9/L
0.200
0.500
1
12/12/23 22:29
MSA
V41230
Di -Isopropyl Ether (DIPE)
<0.500
N9/L
0.500
0.500
1
12/12/23 22:29
MSA
V41230
1,2-Dibromo-3-Chloropropane
<1.10
u9/L
1.10
2.00
1
12/12/23 22:29
MSA
V41230
1,2-Dibromoethane
<0.200
N9/L
0.200
0.500
1
12/12/23 22:29
MSA
V41230
Dibromomethane
<0.230
u9/L
0.230
0.500
1
12/12/23 22:29
MSA
V41230
Qualifiers/ DF Dilution Factor
J
Estimated value
Definitions M Minimum value
MQL
Method Quantitation Limit
Page 6 of 26

Waypoint. 0 449 Springbrook Rd, Charlotte, NC 28217
Main 704.529.6364
ANALYTICAL www.waypointanalytical.com
01223
WSP USA Envi. & Infrastructure Inc. (Charlotte) Project CDIA - Coffey Creek
Rob Foster Report Date : 12/19/2023
2801 Yorkmont Rd. #100 Information : Project #6228-21-0061.09 Received : 12/11/2023
Charlotte , NC 28208
Report Number : 23-345-0008
REPORT OF ANAL YSIS
Lab No : 91478 Matrix: Aqueous
Sample ID: SW-1 Sampled: 12/11/2023 9:20
Analytical Method: 6200B Prep Batch(es): V41227 12/12/23 14:00
Prep Method: 6200 PT
Test Results Units MDL MQL DF Date / Time By Analytical
Analyzed Batch
1,2-Dichlorobenzene
<0.220
Ng/L
0.220
0.500
1
12/12/23 22:29
MSA
V41230
1,3-Dichlorobenzene
<0.190
u9/L
0.190
0.500
1
12/12/23 22:29
MSA
V41230
1,4-Dichlorobenzene
<0.210
N9/L
0.210
0.500
1
12/12/23 22:29
MSA
V41230
Dichlorodifluoromethane
<1.20
u9/L
1.20
5.00
1
12/12/23 22:29
MSA
V41230
1,1-Dichloroethane
<0.240
N9/L
0.240
0.500
1
12/12/23 22:29
MSA
V41230
1,2-Dichloroethane
<0.150
u9/L
0.150
0.500
1
12/12/23 22:29
MSA
V41230
1,1-Dichloroethene
<0.150
N9/L
0.150
0.500
1
12/12/23 22:29
MSA
V41230
cis- 1,2-Dich loroethene
<0.200
u9/L
0.200
0.500
1
12/12/23 22:29
MSA
V41230
trans-1,2-Dichloroethene
<0.180
N9/L
0.180
0.500
1
12/12/23 22:29
MSA
V41230
1,2-Dichloropropane
<0.190
u9/L
0.190
0.500
1
12/12/23 22:29
MSA
V41230
1,3-Dichloropropane
<0.130
N9/L
0.130
0.500
1
12/12/23 22:29
MSA
V41230
2,2-Dichloropropane
<0.210
u9/L
0.210
2.00
1
12/12/23 22:29
MSA
V41230
1,1-Dichloropropene
<0.200
N9/L
0.200
0.500
1
12/12/23 22:29
MSA
V41230
cis- 1,3-Dich loropropene
<0.210
u9/L
0.210
0.500
1
12/12/23 22:29
MSA
V41230
trans-1,3-Dichloropropene
<0.150
N9/L
0.150
0.500
1
12/12/23 22:29
MSA
V41230
Ethanol
<42.0
u9/L
42.0
200
1
12/12/23 22:29
MSA
V41230
Ethylbenzene
<0.170
N9/L
0.170
0.500
1
12/12/23 22:29
MSA
V41230
Hexachlorobutadiene
<0.350
u9/L
0.350
3.00
1
12/12/23 22:29
MSA
V41230
2-Hexanone
<0.380
N9/L
0.380
1.00
1
12/12/23 22:29
MSA
V41230
Isopropyl benzene
<0.180
u9/L
0.180
0.500
1
12/12/23 22:29
MSA
V41230
4-Isopropyl toluene
<0.089
N9/L
0.089
0.500
1
12/12/23 22:29
MSA
V41230
Methyl Ethyl Ketone (MEK)
0.7751
u9/L
0.710
5.00
1
12/12/23 22:29
MSA
V41230
Qualifiers/ DF
Dilution Factor
J
Estimated value
Definitions M
Minimum value
MQL
Method Quantitation Limit
Page 7 of 26

Waypoint. 0 449 Springbrook Rd, Charlotte, NC 28217
Main 704.529.6364
ANALYTICAL www.waypointanalytical.com
01223
WSP USA Envi. & Infrastructure Inc. (Charlotte) Project CDIA - Coffey Creek
Rob Foster Report Date : 12/19/2023
2801 Yorkmont Rd. #100 Information : Project #6228-21-0061.09 Received : 12/11/2023
Charlotte , NC 28208
Report Number : 23-345-0008 REPOR T OF A NA L YSIS
Lab No : 91478
Matrix: Aqueous
Sample ID: SW-1
Sampled:
12/11/2023
9:20
Analytical Method: 6200B
Prep Batch(es):
V41227
12/12/23 14:00
Prep Method: 6200 PT
Test
Results
Units
MDL
MQL
DF
Date / Time
By
Analytical
Analyzed
Batch
Methyl tert-butyl ether (MTBE)
<0.140
Ng/L
0.140
1.00
1
12/12/23 22:29
MSA
V41230
4-Methyl-2-Pentanone
<0.078
u9/L
0.078
1.00
1
12/12/23 22:29
MSA
V41230
Methylene Chloride
<0.330
N9/L
0.330
2.00
1
12/12/23 22:29
MSA
V41230
Naphthalene
<0.470
u9/L
0.470
1.00
1
12/12/23 22:29
MSA
V41230
n-Propylbenzene
<0.190
N9/L
0.190
0.500
1
12/12/23 22:29
MSA
V41230
Styrene
<0.220
u9/L
0.220
0.500
1
12/12/23 22:29
MSA
V41230
1,1,1,2-Tetrachloroethane
<0.160
N9/L
0.160
0.500
1
12/12/23 22:29
MSA
V41230
1,1,2,2-Tetrachloroethane
<0.160
u9/L
0.160
0.500
1
12/12/23 22:29
MSA
V41230
Tetrachloroethene
<0.220
N9/L
0.220
0.500
1
12/12/23 22:29
MSA
V41230
Toluene
<0.220
u9/L
0.220
0.500
1
12/12/23 22:29
MSA
V41230
1,2,3-Trichlorobenzene
<0.380
N9/L
0.380
0.500
1
12/12/23 22:29
MSA
V41230
1,2,4-Trichlorobenzene
<0.310
u9/L
0.310
0.500
1
12/12/23 22:29
MSA
V41230
1,1,1-Trichloroethane
<0.160
N9/L
0.160
0.500
1
12/12/23 22:29
MSA
V41230
1,1,2-Trichloroethane
<0.096
u9/L
0.096
0.500
1
12/12/23 22:29
MSA
V41230
Trichloroethene
<0.180
N9/L
0.180
0.500
1
12/12/23 22:29
MSA
V41230
Trichlorofluoromethane
<0.180
u9/L
0.180
0.500
1
12/12/23 22:29
MSA
V41230
1,2,3-Trichloropropane
<0.270
N9/L
0.270
0.500
1
12/12/23 22:29
MSA
V41230
1,2,4-Trimethyl benzene
<0.190
u9/L
0.190
0.500
1
12/12/23 22:29
MSA
V41230
1,3,5-Trimethyl benzene
<0.180
N9/L
0.180
0.500
1
12/12/23 22:29
MSA
V41230
Vinyl Acetate
<1.00
u9/L
1.00
5.00
1
12/12/23 22:29
MSA
V41230
Vinyl Chloride
<0.170
N9/L
0.170
0.500
1
12/12/23 22:29
MSA
V41230
o-Xylene
<0.210
u9/L
0.210
0.500
1
12/12/23 22:29
MSA
V41230
Qualifiers/ DF Dilution Factor
J
Estimated value
Definitions M Minimum value
MQL
Method Quantitation Limit
Page 8 of 26

Waypoint. 0 449 Springbrook Rd, Charlotte, NC 28217
Main 704.529.6364
ANALYTICAL www.waypointanalytical.com
01223
WSP USA Envi. & Infrastructure Inc. (Charlotte) Project CDIA - Coffey Creek
Rob Foster Report Date : 12/19/2023
2801 Yorkmont Rd. #100 Information : Project #6228-21-0061.09 Received : 12/11/2023
Charlotte , NC 28208
Report Number : 23-345-0008 REPOR T OF A NA L YSIS
Lab No : 91478 Matrix: Aqueous
Sample ID: SW-1 Sampled: 12/11/2023 9:20
Analytical Method: 6200B Prep Batch(es): V41227 12/12/23 14:00
Prep Method: 6200 PT
Test Results Units MDL MQL DF Date / Time By Analytical
Analyzed Batch
m,p-Xylene
<0.420 Ng/L
0.420 1.00 1
12/12/23 22:29 MSA
V41230
Xylene (Total)
<0.21 pg/L
0.210 0.500 1
12/12/23 22:29
V41230
Surrogate: 4-Bromofluorobenzene
95.0
Limits: 70-130%
1 12/12/23 22:29 MSA
V41230
Surrogate: Dibromofluoromethane
96.4
Limits: 70-130%
1 12/12/23 22:29 MSA
V41230
Surrogate: 1,2-Dichloroethane - d4
90.6
Limits: 70-130%
1 12/12/23 22:29 MSA
V41230
Surrogate: Toluene-d8
92.6
Limits: 70-130%
1 12/12/23 22:29 MSA
V41230
Analytical Method: 625.1
Prep Batch(es):
V41442 12/18/23 10:55
Prep Method: 625.1 (Prep)
Test
Results Units
MDL MQL DF
Date / Time By
Analytical
Analyzed
Batch
Acenaphthene
<0.302
Ng/L
0.302
2.00
1
12/18/23 20:55
AMP
V41470
Acenaphthylene
<0.297
pg/L
0.297
2.00
1
12/18/23 20:55
AMP
V41470
Anthracene
<0.836
Ng/L
0.836
2.00
1
12/18/23 20:55
AMP
V41470
Benzidine
<1.32 M
pg/L
1.32
10.0
1
12/18/23 20:55
AMP
V41470
Benzo(a)anthracene
<0.637
Ng/L
0.637
2.00
1
12/18/23 20:55
AMP
V41470
Benzo(a)pyrene
<1.02
pg/L
1.02
2.00
1
12/18/23 20:55
AMP
V41470
Benzo(b)fluoranthene
<2.49
Ng/L
2.49
5.00
1
12/18/23 20:55
AMP
V41470
Benzo(g,h,i)perylene
<1.01
pg/L
1.01
5.00
1
12/18/23 20:55
AMP
V41470
Benzo(k)fluoranthene
<1.99
Ng/L
1.99
5.00
1
12/18/23 20:55
AMP
V41470
Benzoic Acid
11.0
pg/L
1.10
10.0
1
12/18/23 20:55
AMP
V41470
Benzyl alcohol
9.70
Ng/L
0.684
5.00
1
12/18/23 20:55
AMP
V41470
Bis(2-Chloroethoxy)methane
<0.468
pg/L
0.468
5.00
1
12/18/23 20:55
AMP
V41470
Qualifiers/ DF
Dilution Factor
J
Estimated value
Definitions M
Minimum value
MQL
Method Quantitation Limit
Page 9 of 26

Waypoint. 0 449 Springbrook Rd, Charlotte, NC 28217
Main 704.529.6364
ANALYTICAL www.waypointanalytical.com
01223
WSP USA Envi. & Infrastructure Inc. (Charlotte) Project CDIA - Coffey Creek
Rob Foster Report Date : 12/19/2023
2801 Yorkmont Rd. #100 Information : Project #6228-21-0061.09 Received : 12/11/2023
Charlotte , NC 28208
Report Number : 23-345-0008 REPOR T OF A NA L YSIS
Lab No : 91478
Matrix: Aqueous
Sample ID: SW-1
Sampled:
12/11/2023
9:20
Analytical Method: 625.1
Prep Batch(es):
V41442
12/18/23 10:55
Prep Method: 625.1 (Prep)
Test
Results
Units
MDL
MQL
DF
Date / Time
By
Analytical
Analyzed
Batch
Bis(2-Chloroethyl)ether
<1.04
Ng/L
1.04
5.00
1
12/18/23 20:55
AMP
V41470
Bis(2-Chloroisopropyl)ether
<1.08
ug/L
1.08
5.00
1
12/18/23 20:55
AMP
V41470
Bis(2-ethylhexyl)phthalate
<3.46
N9/L
3.46
10.0
1
12/18/23 20:55
AMP
V41470
4-13romophenyl phenyl ether
<1.11
ug/L
1.11
5.00
1
12/18/23 20:55
AMP
V41470
Butyl benzyl phthalate
<1.83
N9/L
1.83
5.00
1
12/18/23 20:55
AMP
V41470
4-Chloro-3-methyl phenol
<1.18
ug/L
1.18
5.00
1
12/18/23 20:55
AMP
V41470
2-Chloronaphthalene
<7.38 M
N9/L
7.38
20.0
1
12/18/23 20:55
AMP
V41470
2-Chlorophenol
<0.938
ug/L
0.938
10.0
1
12/18/23 20:55
AMP
V41470
4-Chlorophenyl phenyl ether
<1.71
N9/L
1.71
5.00
1
12/18/23 20:55
AMP
V41470
Chrysene
<0.405
ug/L
0.405
2.00
1
12/18/23 20:55
AMP
V41470
Dibenz(a,h)anthracene
<0.434
N9/L
0.434
2.00
1
12/18/23 20:55
AMP
V41470
Dibenzofuran
<0.856
ug/L
0.856
5.00
1
12/18/23 20:55
AMP
V41470
1,2-Dichlorobenzene
<2.00
N9/L
2.00
5.00
1
12/18/23 20:55
AMP
V41470
1,3-Dichlorobenzene
<2.00
ug/L
2.00
5.00
1
12/18/23 20:55
AMP
V41470
1,4-Dichlorobenzene
<2.05
Ng/L
2.05
5.00
1
12/18/23 20:55
AMP
V41470
3,3'-Dichlorobenzidine
<1.89
ug/L
1.89
5.00
1
12/18/23 20:55
AMP
V41470
2,4-Dichlorophenol
<1.46
Ng/L
1.46
10.0
1
12/18/23 20:55
AMP
V41470
Diethyl phthalate
<0.745
ug/L
0.745
5.00
1
12/18/23 20:55
AMP
V41470
Dimethyl phthalate
<0.939
Ng/L
0.939
5.00
1
12/18/23 20:55
AMP
V41470
2,4-Dimethylphenol
<1.57
ug/L
1.57
20.0
1
12/18/23 20:55
AMP
V41470
Di-n-butyl phthalate
<2.06
Ng/L
2.06
5.00
1
12/18/23 20:55
AMP
V41470
4,6- Din itro-2-methylphenol
<2.07
ug/L
2.07
10.0
1
12/18/23 20:55
AMP
V41470
Qualifiers/ DF Dilution Factor
J
Estimated value
Definitions M Minimum value
MQL
Method Quantitation Limit
Page 10 of 26

Waypoint.0
ANALYTICAL
01223
WSP USA Envi. & Infrastructure Inc. (Charlotte) Project
Rob Foster
449 Springbrook Rd, Charlotte, NC 28217
Main 704.529.6364
www.waypointana lyti ca Isom
CDIA - Coffey Creek
2801 Yorkmont Rd. #100 Information : Project #6228-21-0061.09
Charlotte , NC 28208
Report Number : 23-345-0008
REPORT OF ANAL YSIS
Report Date : 12/19/2023
Received : 12/11/2023
Lab No : 91478
Matrix: Aqueous
Sample ID: SW-1
Sampled:
12/11/2023
9:20
Analytical Method: 625.1
Prep Batch(es):
V41442
12/18/23 10:55
Prep Method: 625.1 (Prep)
Test
Results
Units
MDL
MQL
DF
Date / Time
By
Analytical
Analyzed
Batch
2,4-Dinitrophenol
<1.92
Ng/L
1.92
10.0
1
12/18/23 20:55
AMP
V41470
2,4-Dinitrotoluene
<1.11
u9/L
1.11
5.00
1
12/18/23 20:55
AMP
V41470
2,6-Dinitrotoluene
<0.809
N9/L
0.809
5.00
1
12/18/23 20:55
AMP
V41470
Di-n-Octyl Phthalate
<1.65
u9/L
1.65
5.00
1
12/18/23 20:55
AMP
V41470
Fluoranthene
<0.250
N9/L
0.250
2.00
1
12/18/23 20:55
AMP
V41470
Fluorene
<0.807
u9/L
0.807
2.00
1
12/18/23 20:55
AMP
V41470
Hexachlorobenzene
<0.979
N9/L
0.979
5.00
1
12/18/23 20:55
AMP
V41470
Hexachlorobutadiene
<2.73
u9/L
2.73
5.00
1
12/18/23 20:55
AMP
V41470
Hexachlorocyclopentadiene
<2.05
N9/L
2.05
5.00
1
12/18/23 20:55
AMP
V41470
Hexachloroethane
<1.76
u9/L
1.76
5.00
1
12/18/23 20:55
AMP
V41470
Indeno(1,2,3-cd)pyrene
<0.477
N9/L
0.477
2.00
1
12/18/23 20:55
AMP
V41470
Isophorone
<0.444
u9/L
0.444
5.00
1
12/18/23 20:55
AMP
V41470
1-Methylnaphthalene
<1.14
N9/L
1.14
2.00
1
12/18/23 20:55
AMP
V41470
2-Methylnaphthalene
<0.666
u9/L
0.666
2.00
1
12/18/23 20:55
AMP
V41470
Naphthalene
<0.728
N9/L
0.728
2.00
1
12/18/23 20:55
AMP
V41470
Nitrobenzene
<0.905
u9/L
0.905
5.00
1
12/18/23 20:55
AMP
V41470
2-Nitrophenol
<0.493
N9/L
0.493
5.00
1
12/18/23 20:55
AMP
V41470
4-Nitrophenol
<1.23
u9/L
1.23
10.0
1
12/18/23 20:55
AMP
V41470
N-Nitrosodiphenylamine
<1.10
N9/L
1.10
5.00
1
12/18/23 20:55
AMP
V41470
N-Nitroso-di-n-propylamine
<0.641
u9/L
0.641
5.00
1
12/18/23 20:55
AMP
V41470
Pentachlorophenol
<1.43
N9/L
1.43
5.00
1
12/18/23 20:55
AMP
V41470
Phenanthrene
<0.428
u9/L
0.428
2.00
1
12/18/23 20:55
AMP
V41470
Qualifiers/ DF Dilution Factor
J
Estimated value
Definitions M Minimum value
MQL
Method Quantitation Limit
Page 11 of 26

Waypoint. 0 449 Springbrook Rd, Charlotte, NC 28217
Main 704.529.6364
ANALYTICAL www.waypointanalytical.com
01223
WSP USA Envi. & Infrastructure Inc. (Charlotte) Project CDIA - Coffey Creek
Rob Foster
2801 Yorkmont Rd. #100 Information : Project #6228-21-0061.09
Charlotte , NC 28208
Report Date : 12/19/2023
Received : 12/11/2023
Report Number : 23-345-0008 REPOR T OF A NA L YSIS
Lab No : 91478 Matrix: Aqueous
Sample ID: SW-1 Sampled: 12/11/2023 9:20
Analytical Method: 625.1
Prep Method: 625.1 (Prep)
Test Results
Phenol <0.651
Pyrene <0.434
1,2,4-Trichlorobenzene <2.21 M
2,4,6-Trichlorophenol <1.32
Surrogate: Phenol-d5
Surrogate: 2-Fluorobiphenyl
Surrogate: 2-Fluorophenol
Surrogate: Nitrobenzene-d5
Surrogate: 4-Terphenyl-d 14
Surrogate: 2,4,6-Tribromophenol
Qualifiers/ DF Dilution Factor
Definitions M Minimum value
Prep Batch(es): V41442 12/18/23 10:55
Units MDL MQL DF Date / Time By Analytical
Analyzed Batch
Ng/L
0.651 5.00
Pg/L
0.434 2.00
Ng/L
2.21 5.00
Pg/L
1.32 5.00
25.2
Limits: 10-63%
57.8
Limits: 49-118%
37.4
Limits: 22-84%
55.2
Limits: 43-123%
77.8
Limits: 49-151%
75.3
Limits: 31-144%
1 12/18/23 20:55 AMP
V41470
1 12/18/23 20:55 AMP
V41470
1 12/18/23 20:55 AMP
V41470
1 12/18/23 20:55 AMP
V41470
1 12/18/23 20:55 AMP
625.1
1 12/18/23 20:55 AMP
V41470
1 12/18/23 20:55 AMP
V41470
1 12/18/23 20:55 AMP
V41470
1 12/18/23 20:55 AMP
V41470
1 12/18/23 20:55 AMP
V41470
J Estimated value
MQL Method Quantitation Limit
Page 12 of 26

Waypointo
ANALYTICAL
449 Springbrook Rd, Charlotte, NC 28217
Main 704.529.6364
www.waypointanalytical.com
Quality Control Data
Client ID: WSP USA Envi. & Infrastructure Inc. (Charlotte)
Project Description: CDIA - Coffey Creek
Report No: 23-345-0008
QC Prep: V41227
QC Prep Batch Method: 6200 PT
QC Analytical Batch(es): V41230
Analysis Method: 6200B
Analysis Description: Volatile Organic Compounds - GC/MS
Lab Reagent Blank LRB-V41227 Matrix: AQU
Associated Lab Samples: 91478
Blank MDL MQL Analyzed % % Rec
Parameter Units Result Recovery Limits
Acetone
pg/L
<1.80
1.80
10.0
12/12/23 22:05
Benzene
pg/L
<0.180
0.180
0.500
12/12/23 22:05
Bromobenzene
pg/L
<0.210
0.210
0.500
12/12/23 22:05
Bromochloromethane
pg/L
<0.420
0.420
1.00
12/12/23 22:05
Bromodichloromethane
pg/L
<0.160
0.160
0.500
12/12/23 22:05
Bromoform
pg/L
<1.50
1.50
5.00
12/12/23 22:05
Bromomethane
pg/L
<0.280
0.280
1.00
12/12/23 22:05
n-Butylbenzene
pg/L
<0.180
0.180
0.500
12/12/23 22:05
sec -Butyl benzene
pg/L
<0.200
0.200
0.500
12/12/23 22:05
tert-Butyl benzene
pg/L
<0.920
0.920
2.00
12/12/23 22:05
Carbon Tetrachloride
pg/L
<0.180
0.180
0.500
12/12/23 22:05
Chlorobenzene
pg/L
<0.190
0.190
0.500
12/12/23 22:05
Chlorodibromomethane
pg/L
<0.190
0.190
0.500
12/12/23 22:05
Chloroethane
pg/L
<0.430
0.430
1.00
12/12/23 22:05
Chloroform
pg/L
<0.220
0.220
0.500
12/12/23 22:05
Chloromethane
pg/L
<0.220
0.220
0.500
12/12/23 22:05
2-Chlorotoluene
pg/L
<0.200
0.200
0.500
12/12/23 22:05
4-Chlorotoluene
pg/L
<0.200
0.200
0.500
12/12/23 22:05
Di -Isopropyl Ether (DIPE)
pg/L
<0.500
0.500
0.500
12/12/23 22:05
1,2-Dibromo-3-Chloropropane
pg/L
<1.10
1.10
2.00
12/12/23 22:05
1,2-Dibromoethane
pg/L
<0.200
0.200
0.500
12/12/23 22:05
Dibromomethane
pg/L
<0.230
0.230
0.500
12/12/23 22:05
1,2-Dichlorobenzene
pg/L
<0.220
0.220
0.500
12/12/23 22:05
1,3-Dichlorobenzene
pg/L
<0.190
0.190
0.500
12/12/23 22:05
1,4-Dichlorobenzene
pg/L
<0.210
0.210
0.500
12/12/23 22:05
Dichlorodifluoromethane
pg/L
<1.20
1.20
5.00
12/12/23 22:05
1,1-Dichloroethane
pg/L
<0.240
0.240
0.500
12/12/23 22:05
Date:
12/19/2023 01:41 PM
Page 1 of 12
Page 13 of 26

Waypointo
ANALYTICAL
449 Springbrook Rd, Charlotte, NC 28217
Main 704.529.6364
www.waypointanalytical.com
Quality Control Data
Client ID: WSP USA Envi. & Infrastructure Inc. (Charlotte)
Project Description: CDIA - Coffey Creek
Report No: 23-345-0008
QC Prep: V41227
QC Prep Batch Method: 6200 PT
QC Analytical Batch(es): V41230
Analysis Method: 6200B
Analysis Description: Volatile Organic Compounds - GC/MS
Lab Reagent Blank LRB-V41227 Matrix: AQU
Associated Lab Samples: 91478
Blank MDL MQL Analyzed % % Rec
Parameter Units Result Recovery Limits
1,2-Dichloroethane
pg/L
<0.150
0.150
0.500
12/12/23 22:05
1,1-Dichloroethene
pg/L
<0.150
0.150
0.500
12/12/23 22:05
cis-1,2-Dichloroethene
pg/L
<0.200
0.200
0.500
12/12/23 22:05
trans-1,2-Dichloroethene
pg/L
<0.180
0.180
0.500
12/12/23 22:05
1,2-Dichloropropane
pg/L
<0.190
0.190
0.500
12/12/23 22:05
1,3-Dichloropropane
pg/L
<0.130
0.130
0.500
12/12/23 22:05
2,2-Dichloropropane
pg/L
<0.210
0.210
2.00
12/12/23 22:05
1,1-Dichloropropene
pg/L
<0.200
0.200
0.500
12/12/23 22:05
cis-1,3-Dichloropropene
pg/L
<0.210
0.210
0.500
12/12/23 22:05
trans-1,3-Dichloropropene
pg/L
<0.150
0.150
0.500
12/12/23 22:05
Ethanol
pg/L
<42.0
42.0
200
12/12/23 22:05
Ethylbenzene
pg/L
<0.170
0.170
0.500
12/12/23 22:05
Hexachlorobutadiene
pg/L
<0.350
0.350
3.00
12/12/23 22:05
2-Hexanone
pg/L
<0.380
0.380
1.00
12/12/23 22:05
Isopropyl benzene
pg/L
<0.180
0.180
0.500
12/12/23 22:05
4-Isopropyl toluene
pg/L
<0.089
0.089
0.500
12/12/23 22:05
Methyl Ethyl Ketone (MEK)
pg/L
<0.710
0.710
5.00
12/12/23 22:05
Methyl tert-butyl ether (MTBE)
pg/L
<0.140
0.140
1.00
12/12/23 22:05
4-Methyl-2-Pentanone
pg/L
<0.078
0.078
1.00
12/12/23 22:05
Methylene Chloride
pg/L
<0.330
0.330
2.00
12/12/23 22:05
Naphthalene
pg/L
<0.470
0.470
1.00
12/12/23 22:05
n-Propylbenzene
pg/L
<0.190
0.190
0.500
12/12/23 22:05
Styrene
pg/L
<0.220
0.220
0.500
12/12/23 22:05
1,1,1,2-Tetrachloroethane
pg/L
<0.160
0.160
0.500
12/12/23 22:05
1,1,2,2-Tetrachloroethane
pg/L
<0.160
0.160
0.500
12/12/23 22:05
Tetrachloroethene
pg/L
<0.220
0.220
0.500
12/12/23 22:05
Toluene
pg/L
<0.220
0.220
0.500
12/12/23 22:05
Date:
12/19/2023 01:41 PM
Page 2 of 12
Page 14 of 26

Waypointo
ANALYTICAL
449 Springbrook Rd, Charlotte, NC 28217
Main 704.529.6364
www.waypointanalytical.com
Quality Control Data
Client ID:
WSP USA Envi. & Infrastructure Inc. (Charlotte)
Project Description:
CDIA - Coffey Creek
Report No:
23-345-0008
QC Prep:
V41227
QC Analytical Batch(es): V41230
QC Prep Batch Method:
6200 PT
Analysis Method:
6200B
Analysis Description:
Volatile Organic Compounds - GC/MS
Lab Reagent Blank
LRB-V41227
Matrix: AQU
Associated Lab Samples:
91478
Blank
MDL
MQL
Analyzed
%
% Rec
Parameter
Units
Result
Recovery
Limits
1,2,3-Trichlorobenzene
pg/L
<0.380
0.380
0.500
12/12/23 22:05
1,2,4-Trichlorobenzene
pg/L
<0.310
0.310
0.500
12/12/23 22:05
1,1,1-Trichloroethane
pg/L
<0.160
0.160
0.500
12/12/23 22:05
1,1,2-Trichloroethane
pg/L
<0.096
0.096
0.500
12/12/23 22:05
Trichloroethene
pg/L
<0.180
0.180
0.500
12/12/23 22:05
Trichlorofluoromethane
pg/L
<0.180
0.180
0.500
12/12/23 22:05
1,2,3-Trichloropropane
pg/L
<0.270
0.270
0.500
12/12/23 22:05
1,2,4-Trimethyl benzene
pg/L
<0.190
0.190
0.500
12/12/23 22:05
1,3,5-Trimethyl benzene
pg/L
<0.180
0.180
0.500
12/12/23 22:05
Vinyl Acetate
pg/L
<1.00
1.00
5.00
12/12/23 22:05
Vinyl Chloride
pg/L
<0.170
0.170
0.500
12/12/23 22:05
o-Xylene
pg/L
<0.210
0.210
0.500
12/12/23 22:05
m,p-Xylene
pg/L
<0.420
0.420
1.00
12/12/23 22:05
4-Bromofluorobenzene (S)
12/12/23 22:05
95.0
70-130
Dibromofluoromethane (S)
12/12/23 22:05
96.4
70-130
1,2-Dichloroethane - d4 (S)
12/12/23 22:05
93.6
70-130
Toluene-d8 (S)
12/12/23 22:05
92.4
70-130
Laboratory Control Sample & LCSD
LCS-V41227 LCSD-V41227
Spike
LCS
LCSD
LCS LCSD
% Rec
Parameter
Units
Conc.
Result
Result
%Rec a/o Rec
Limits
RPD Max
RPD
Acetone
pg/L
40.0
69.7
70.5
174* 176*
40-160
1.1 20.0
Benzene
pg/L
20.0
23.7
23.3
119 117
70-130
1.7 20.0
Bromobenzene
pg/L
20.0
20.9
20.8
105 104
70-130
0.4 20.0
Bromochloromethane
pg/L
20.0
22.8
23.0
114 115
70-130
0.8 20.0
Bromodichloromethane
pg/L
20.0
22.4
22.1
112 111
70-130
1.3 20.0
* QC Fail Date: 12/19/2023 01:41 PM Page 3 of 12
Page 15 of 26

Waypointo
ANALYTICAL
449 Springbrook Rd, Charlotte, NC 28217
Main 704.529.6364
www.waypointanalytical.com
Quality Control Data
Client ID: WSP USA Envi. & Infrastructure Inc. (Charlotte)
Project Description: CDIA - Coffey Creek
Report No: 23-345-0008
QC Prep: V41227 QC Analytical Batch(es): V41230
QC Prep Batch Method: 6200 PT Analysis Method: 6200B
Analysis Description: Volatile Organic Compounds - GC/MS
Laboratory Control Sample & LCSD LCS-V41227 LCSD-V41227
Parameter
Units
Spike
Conc.
LCS
Result
LCSD
Result
LCS
%Rec
LCSD
% Rec
% Rec
Limits
RPD
Max
RPD
Bromoform
pg/L
20.0
20.3
20.2
102
101
70-130
0.4
20.0
Bromomethane
pg/L
20.0
22.7
22.9
114
115
60-140
0.8
20.0
n-Butylbenzene
pg/L
20.0
20.2
19.9
101
99.5
70-130
1.4
20.0
sec -Butyl benzene
pg/L
20.0
21.0
20.5
105
103
70-130
2.4
20.0
tert-Butyl benzene
pg/L
20.0
21.0
20.7
105
104
70-130
1.4
20.0
Carbon Tetrachloride
pg/L
20.0
19.7
19.7
98.5
98.5
70-130
0.0
20.0
Chlorobenzene
pg/L
20.0
22.2
22.2
111
111
70-130
0.0
20.0
Chlorodibromomethane
pg/L
20.0
21.8
21.8
109
109
70-130
0.0
20.0
Chloroethane
pg/L
20.0
33.8
32.8
169*
164*
60-140
3.0
20.0
Chloroform
pg/L
20.0
22.2
22.2
111
111
70-130
0.0
20.0
Chloromethane
pg/L
20.0
28.2
27.6
141*
138
60-140
2.1
20.0
2-Chlorotoluene
pg/L
20.0
20.9
20.4
105
102
70-130
2.4
20.0
4-Chlorotoluene
pg/L
20.0
21.1
20.8
106
104
70-130
1.4
20.0
Di -Isopropyl Ether (DIPE)
pg/L
20.0
26.6
26.4
133*
132*
70-130
0.7
20.0
1,2-Dibromo-3-Chloropropane
pg/L
20.0
22.7
23.4
114
117
70-130
3.0
20.0
1,2-Dibromoethane
pg/L
20.0
22.5
21.9
113
110
70-130
2.7
20.0
Dibromomethane
pg/L
20.0
22.8
23.0
114
115
70-130
0.8
20.0
1,2-Dichlorobenzene
pg/L
20.0
21.7
21.7
109
109
70-130
0.0
20.0
1,3-Dichlorobenzene
pg/L
20.0
21.9
21.3
110
107
70-130
2.7
20.0
1,4-Dichlorobenzene
pg/L
20.0
21.9
21.7
110
109
70-130
0.9
20.0
Dichlorodifluoromethane
pg/L
20.0
16.2
15.9
81.0
79.5
60-140
1.8
20.0
1,1-Dichloroethane
pg/L
20.0
23.7
23.3
119
117
70-130
1.7
20.0
1,2-Dichloroethane
pg/L
20.0
21.0
21.3
105
107
70-130
1.4
20.0
1,1-Dichloroethene
pg/L
20.0
22.5
22.2
113
111
70-130
1.3
20.0
cis-1,2-Dichloroethene
pg/L
20.0
22.9
22.7
115
114
70-130
0.8
20.0
trans-1,2-Dichloroethene
pg/L
20.0
23.2
22.5
116
113
70-130
3.0
20.0
* QC Fail Date: 12/19/2023 01:41 PM Page 4 of 12
Page 16 of 26

Waypointo
ANALYTICAL
449 Springbrook Rd, Charlotte, NC 28217
Main 704.529.6364
www.waypointanalytical.com
Quality Control Data
Client ID: WSP USA Envi. & Infrastructure Inc. (Charlotte)
Project Description: CDIA - Coffey Creek
Report No: 23-345-0008
QC Prep: V41227 QC Analytical Batch(es): V41230
QC Prep Batch Method: 6200 PT Analysis Method: 6200B
Analysis Description: Volatile Organic Compounds - GC/MS
Laboratory Control Sample & LCSD LCS-V41227 LCSD-V41227
Parameter
Units
Spike
Conc.
LCS
Result
LCSD
Result
LCS
%Rec
LCSD
% Rec
% Rec
Limits
RPD
Max
RPD
1,2-Dichloropropane
pg/L
20.0
24.6
24.2
123
121
70-130
1.6
20.0
1,3-Dichloropropane
pg/L
20.0
21.6
21.5
108
108
70-130
0.4
20.0
2,2-Dichloropropane
pg/L
20.0
18.4
18.1
92.0
90.5
70-130
1.6
20.0
1,1-Dichloropropene
pg/L
20.0
23.5
22.5
118
113
70-130
4.3
20.0
cis-1,3-Dichloropropene
pg/L
20.0
22.4
22.4
112
112
70-130
0.0
20.0
trans-1,3-Dichloropropene
pg/L
20.0
21.9
21.8
110
109
70-130
0.4
20.0
Ethanol
pg/L
500
588
636
118
127
60-140
7.8
20.0
Ethylbenzene
pg/L
20.0
21.1
20.8
106
104
70-130
1.4
20.0
Hexachlorobutadiene
pg/L
20.0
18.2
17.7
91.0
88.5
70-130
2.7
20.0
2-Hexanone
pg/L
20.0
27.7
27.5
139
138
60-140
0.7
20.0
Isopropyl benzene
pg/L
20.0
21.2
20.7
106
104
70-130
2.3
20.0
4-Isopropyl toluene
pg/L
20.0
20.6
20.2
103
101
70-130
1.9
20.0
Methyl Ethyl Ketone (MEK)
pg/L
20.0
28.6
28.5
143*
143*
60-140
0.3
20.0
Methyl tert-butyl ether (MTBE)
pg/L
20.0
22.4
22.4
112
112
70-130
0.0
20.0
4-Methyl-2-Pentanone
pg/L
20.0
27.7
27.5
139
138
60-140
0.7
20.0
Methylene Chloride
pg/L
20.0
22.4
22.1
112
111
70-130
1.3
20.0
Naphthalene
pg/L
20.0
23.7
23.0
119
115
70-130
2.9
20.0
n-Propylbenzene
pg/L
20.0
21.2
20.7
106
104
70-130
2.3
20.0
Styrene
pg/L
20.0
22.4
21.8
112
109
70-130
2.7
20.0
1,1,1,2-Tetrachloroethane
pg/L
20.0
21.7
21.4
109
107
70-130
1.3
20.0
1,1,2,2-Tetrachloroethane
pg/L
20.0
20.0
19.6
100
98.0
70-130
2.0
20.0
Tetrachloroethene
pg/L
20.0
22.1
21.6
111
108
70-130
2.2
20.0
Toluene
pg/L
20.0
23.3
23.1
117
116
70-130
0.8
20.0
1,2,3-Trichlorobenzene
pg/L
20.0
24.9
24.5
125
123
70-130
1.6
20.0
1,2,4-Trichlorobenzene
pg/L
20.0
21.6
20.9
108
105
70-130
3.2
20.0
1,1,1-Trichloroethane
pg/L
20.0
20.9
20.8
105
104
70-130
0.4
20.0
* QC Fail Date: 12/19/2023 01:41 PM Page 5 of 12
Page 17 of 26

Waypointo
ANALYTICAL
449 Springbrook Rd, Charlotte, NC 28217
Main 704.529.6364
www.waypointanalytical.com
Quality Control Data
Client ID:
WSP USA Envi. & Infrastructure Inc. (Charlotte)
Project Description:
CDIA - Coffey Creek
Report No:
23-345-0008
QC Prep:
V41227
QC Analytical Batch(es): V41230
QC Prep Batch Method:
6200 PT
Analysis Method:
6200B
Analysis Description:
Volatile Organic Compounds - GC/MS
Laboratory Control Sample
& LCSD
LCS-V41227
LCSD-V41227
Spike
LCS
LCSD
LCS
LCSD
% Rec
Parameter
Units
Conc.
Result
Result
%Rec
% Rec
Limits
RPD
Max
RPD
1,1,2-Trichloroethane
pg/L
20.0
23.2
23.1
116
116
70-130
0.4
20.0
Trichloroethene
pg/L
20.0
25.9
25.8
130
129
70-130
0.3
20.0
Trichlorofluoromethane
pg/L
20.0
22.7
22.9
114
115
60-140
0.8
20.0
1,2,3-Trichloropropane
pg/L
20.0
20.1
20.2
101
101
70-130
0.4
20.0
1,2,4-Trimethyl benzene
pg/L
20.0
20.6
20.4
103
102
70-130
0.9
20.0
1,3,5-Trimethylbenzene
pg/L
20.0
20.7
20.2
104
101
70-130
2.4
20.0
Vinyl Acetate
pg/L
20.0
15.6
15.6
78.0
78.0
60-140
0.0
20.0
Vinyl Chloride
pg/L
20.0
28.5
27.8
143*
139
60-140
2.4
20.0
o-Xylene
pg/L
20.0
21.8
21.3
109
107
70-130
2.3
20.0
m,p-Xylene
pg/L
40.0
43.7
43.1
109
108
70-130
1.3
20.0
4-Bromofluorobenzene (S)
95.8
96.6
70-130
Dibromofluoromethane (S)
96.2
96.4
70-130
1,2-Dichloroethane - d4 (S)
92.2
92.2
70-130
Toluene-d8 (S)
92.8
93.4
70-130
* QC Fail Date: 12/19/2023 01:41 PM Page 6 of 12
Page 18 of 26

Waypointo
ANALYTICAL
449 Springbrook Rd, Charlotte, NC 28217
Main 704.529.6364
www.waypointanalytical.com
Quality Control Data
Client ID: WSP USA Envi. & Infrastructure Inc. (Charlotte)
Project Description: CDIA - Coffey Creek
Report No: 23-345-0008
QC Prep: V41442 QC Analytical Batch(es): V41470
QC Prep Batch Method: 625.1 (Prep) Analysis Method: 625.1
Analysis Description: 625.1 - Base/Neutrals and Acids by GC/MS
Lab Reagent Blank LRB-V41442 Matrix: AQU
Associated Lab Samples: 91478
Blank MDL MQL Analyzed % % Rec
Parameter Units Result Recovery Limits
Acenaphthene
pg/L
<0.302
0.302
2.00
12/18/23 17:51
Acenaphthylene
pg/L
<0.297
0.297
2.00
12/18/23 17:51
Anthracene
pg/L
<0.836
0.836
2.00
12/18/23 17:51
Benzidine
pg/L
<1.32
1.32
10.0
12/18/23 17:51
Benzo(a)anthracene
pg/L
<0.637
0.637
2.00
12/18/23 17:51
Benzo(a)pyrene
pg/L
<1.02
1.02
2.00
12/18/23 17:51
Benzo(b)fluoranthene
pg/L
<2.49
2.49
5.00
12/18/23 17:51
Benzo(g,h,i)perylene
pg/L
<1.01
1.01
5.00
12/18/23 17:51
Benzo(k)fluoranthene
pg/L
<1.99
1.99
5.00
12/18/23 17:51
Benzoic Acid
pg/L
<1.10
1.10
10.0
12/18/23 17:51
Benzyl alcohol
pg/L
<0.684
0.684
5.00
12/18/23 17:51
Bis(2-Chloroethoxy)methane
pg/L
<0.468
0.468
5.00
12/18/23 17:51
Bis(2-Chloroethyl)ether
pg/L
< 1.04
1.04
5.00
12/18/23 17:51
Bis(2-Chloroisopropyl)ether
pg/L
<1.08
1.08
5.00
12/18/23 17:51
Bis(2-ethylhexyl)phthalate
pg/L
<3.46
3.46
10.0
12/18/23 17:51
4-Bromophenyl phenyl ether
pg/L
<1.11
1.11
5.00
12/18/23 17:51
Butyl benzyl phthalate
pg/L
<1.83
1.83
5.00
12/18/23 17:51
4-Chloro-3-methyl phenol
pg/L
<1.18
1.18
5.00
12/18/23 17:51
2-Chloronaphthalene
pg/L
<7.38
7.38
20.0
12/18/23 17:51
2-Chlorophenol
pg/L
<0.938
0.938
10.0
12/18/23 17:51
4-Chlorophenyl phenyl ether
pg/L
<1.71
1.71
5.00
12/18/23 17:51
Chrysene
pg/L
<0.405
0.405
2.00
12/18/23 17:51
Dibenz(a,h)anthracene
pg/L
<0.434
0.434
2.00
12/18/23 17:51
Dibenzofuran
pg/L
<0.856
0.856
5.00
12/18/23 17:51
1,2-Dichlorobenzene
pg/L
<2.00
2.00
5.00
12/18/23 17:51
1,3-Dichlorobenzene
pg/L
<2.00
2.00
5.00
12/18/23 17:51
1,4-Dichlorobenzene
pg/L
<2.05
2.05
5.00
12/18/23 17:51
Date:
12/19/2023 01:41 PM
Page 7 of 12
Page 19 of 26

Waypointo
ANALYTICAL
449 Springbrook Rd, Charlotte, NC 28217
Main 704.529.6364
www.waypointanalytical.com
Quality Control Data
Client ID: WSP USA Envi. & Infrastructure Inc. (Charlotte)
Project Description: CDIA - Coffey Creek
Report No: 23-345-0008
QC Prep: V41442 QC Analytical Batch(es): V41470
QC Prep Batch Method: 625.1 (Prep) Analysis Method: 625.1
Analysis Description: 625.1 - Base/Neutrals and Acids by GC/MS
Lab Reagent Blank LRB-V41442 Matrix: AQU
Associated Lab Samples: 91478
Blank MDL MQL Analyzed % % Rec
Parameter Units Result Recovery Limits
3,3'-Dichlorobenzidine
pg/L
<1.89
1.89
5.00
12/18/23 17:51
2,4-Dichlorophenol
pg/L
<1.46
1.46
10.0
12/18/23 17:51
Diethyl phthalate
pg/L
<0.745
0.745
5.00
12/18/23 17:51
Dimethyl phthalate
pg/L
<0.939
0.939
5.00
12/18/23 17:51
2,4-Dimethylphenol
pg/L
<1.57
1.57
20.0
12/18/23 17:51
Di-n-butyl phthalate
pg/L
<2.06
2.06
5.00
12/18/23 17:51
4,6- Din itro-2-methylphenol
pg/L
<2.07
2.07
10.0
12/18/23 17:51
2,4-Dinitrophenol
pg/L
<1.92
1.92
10.0
12/18/23 17:51
2,4-Dinitrotoluene
pg/L
<1.11
1.11
5.00
12/18/23 17:51
2,6-Dinitrotoluene
pg/L
<0.809
0.809
5.00
12/18/23 17:51
Di-n-Octyl Phthalate
pg/L
<1.65
1.65
5.00
12/18/23 17:51
Fluoranthene
pg/L
<0.250
0.250
2.00
12/18/23 17:51
Fluorene
pg/L
<0.807
0.807
2.00
12/18/23 17:51
Hexachlorobenzene
pg/L
<0.979
0.979
5.00
12/18/23 17:51
Hexachlorobutadiene
pg/L
<2.73
2.73
5.00
12/18/23 17:51
Hexachlorocyclopentadiene
pg/L
<2.05
2.05
5.00
12/18/23 17:51
Hexachloroethane
pg/L
<1.76
1.76
5.00
12/18/23 17:51
Indeno(1,2,3-cd)pyrene
pg/L
<0.477
0.477
2.00
12/18/23 17:51
Isophorone
pg/L
<0.444
0.444
5.00
12/18/23 17:51
1-Methylnaphthalene
pg/L
<1.14
1.14
2.00
12/18/23 17:51
2-Methylnaphthalene
pg/L
<0.666
0.666
2.00
12/18/23 17:51
Naphthalene
pg/L
<0.728
0.728
2.00
12/18/23 17:51
Nitrobenzene
pg/L
<0.905
0.905
5.00
12/18/23 17:51
2-Nitrophenol
pg/L
<0.493
0.493
5.00
12/18/23 17:51
4-Nitrophenol
pg/L
<1.23
1.23
10.0
12/18/23 17:51
N-Nitrosodiphenylamine
pg/L
<1.10
1.10
5.00
12/18/23 17:51
N-Nitroso-di-n-propylamine
pg/L
<0.641
0.641
5.00
12/18/23 17:51
Date:
12/19/2023 01:41 PM
Page 8 of 12
Page 20 of 26

Waypointo
ANALYTICAL
449 Springbrook Rd, Charlotte, NC 28217
Main 704.529.6364
www.waypointanalytical.com
Quality Control Data
Client ID: WSP USA Envi. & Infrastructure Inc. (Charlotte)
Project Description: CDIA - Coffey Creek
Report No: 23-345-0008
QC Prep: V41442 QC Analytical Batch(es): V41470
QC Prep Batch Method: 625.1 (Prep) Analysis Method: 625.1
Analysis Description: 625.1 - Base/Neutrals and Acids by GC/MS
Lab Reagent Blank LRB-V41442 Matrix: AQU
Associated Lab Samples: 91478
Blank
MDL
MQL
Analyzed
%
% Rec
Parameter
Units
Result
Recovery
Limits
Pentachlorophenol
pg/L
<1.43
1.43
5.00
12/18/23 17:51
Phenanthrene
pg/L
<0.428
0.428
2.00
12/18/23 17:51
Phenol
pg/L
<0.651
0.651
5.00
12/18/23 17:51
Pyrene
pg/L
<0.434
0.434
2.00
12/18/23 17:51
1,2,4-Trichlorobenzene
pg/L
<2.21
2.21
5.00
12/18/23 17:51
2,4,6-Trichlorophenol
pg/L
<1.32
1.32
5.00
12/18/23 17:51
2-Fluorobiphenyl (S)
12/18/23 17:51
66.8
49-118
2-Fluorophenol (S)
12/18/23 17:51
46.2
22-84
Nitrobenzene-d5 (S)
12/18/23 17:51
68.4
43-123
4-Terphenyl-d14 (S)
12/18/23 17:51
84.8
49-151
2,4,6-Tribromophenol(S)
12/18/23 17:51
77.7
31-144
Phenol-d5 (S)
12/18/23 17:51
29.2
10-63
Laboratory Control Sample & LCSD
LCS-V41442 LCSD-V41442
Spike
LCS
LCSD
LCS LCSD
% Rec
Parameter
Units
Conc.
Result
Result
%Rec a/o Rec
Limits
RPD
Max
RPD
Acenaphthene
pg/L
50.0
30.3
31.1
60.6 62.2
47-145
2.6
20.0
Acenaphthylene
pg/L
50.0
31.2
32.1
62.4 64.2
33-145
2.8
20.0
Anthracene
pg/L
50.0
38.7
40.1
77.4 80.2
27-133
3.5
20.0
Benzidine
pg/L
50.0
4.05
6.94
8.1* 13.8*
15-150
52.5*
20.0
Benzo(a)anthracene
pg/L
50.0
40.0
41.8
80.0 83.6
33-143
4.4
20.0
Benzo(a)pyrene
pg/L
50.0
47.4
49.6
94.8 99.2
17-163
4.5
20.0
Benzo(b)fluoranthene
pg/L
50.0
43.9
46.2
87.8 92.4
24-159
5.1
20.0
Benzo(g,h,i)perylene
pg/L
50.0
45.4
48.2
90.8 96.4
10-219
5.9
20.0
Benzo(k)fluoranthene
pg/L
50.0
37.0
38.6
74.0 77.2
11-162
4.2
20.0
Benzoic Acid
pg/L
50.0
19.1
18.5
38.2 37.0
10-125
3.1
20.0
* QC Fail Date: 12/19/2023 01:41 PM Page 9 of 12
Page 21 of 26

Waypointo
ANALYTICAL
449 Springbrook Rd, Charlotte, NC 28217
Main 704.529.6364
www.waypointanalytical.com
Quality Control Data
Client ID: WSP USA Envi. & Infrastructure Inc. (Charlotte)
Project Description: CDIA - Coffey Creek
Report No: 23-345-0008
QC Prep: V41442 QC Analytical Batch(es): V41470
QC Prep Batch Method: 625.1 (Prep) Analysis Method: 625.1
Analysis Description: 625.1 - Base/Neutrals and Acids by GC/MS
Laboratory Control Sample & LCSD LCS-V41442 LCSD-V41442
Parameter
Units
Spike
Conc.
LCS
Result
LCSD
Result
LCS
%Rec
LCSD
% Rec
% Rec
Limits
RPD
Max
RPD
Benzyl alcohol
pg/L
50.0
31.3
32.4
62.6
64.8
16-107
3.4
20.0
Bis(2-Chloroethoxy)methane
pg/L
50.0
28.6
30.7
57.2
61.4
33-184
7.0
20.0
Bis(2-Chloroethyl)ether
pg/L
50.0
29.2
31.8
58.4
63.6
12-158
8.5
20.0
Bis(2-Chloroisopropyl)ether
pg/L
50.0
23.5
25.7
47.0
51.4
36-166
8.9
20.0
Bis(2-ethylhexyl)phthalate
pg/L
50.0
50.4
51.5
101
103
10-158
2.1
20.0
4-Bromophenyl phenyl ether
pg/L
50.0
32.3
33.7
64.6
67.4
53-127
4.2
20.0
Butyl benzyl phthalate
pg/L
50.0
52.5
52.9
105
106
10-152
0.7
20.0
4-Chloro-3-methyl phenol
pg/L
50.0
31.7
31.8
63.4
63.6
22-147
0.3
20.0
2-Chloronaphthalene
pg/L
50.0
29.7
30.1
59.4*
60.2
60-118
1.3
20.0
2-Chlorophenol
pg/L
50.0
29.2
30.8
58.4
61.6
23-134
5.3
20.0
4-Chlorophenyl phenyl ether
pg/L
50.0
29.1
30.0
58.2
60.0
25-158
3.0
20.0
Chrysene
pg/L
50.0
39.8
41.4
79.6
82.8
17-168
3.9
20.0
Dibenz(a,h)anthracene
pg/L
50.0
34.5
35.7
69.0
71.4
10-227
3.4
20.0
Dibenzofuran
pg/L
50.0
32.3
33.3
64.6
66.6
39-114
3.0
20.0
1,2-Dichlorobenzene
pg/L
50.0
22.7
24.9
45.4
49.8
32-129
9.2
20.0
1,3-Dichlorobenzene
pg/L
50.0
22.4
23.7
44.8
47.4
20-124
5.6
20.0
1,4-Dichlorobenzene
pg/L
50.0
21.0
22.6
42.0
45.2
20-124
7.3
20.0
3,3'-Dichlorobenzidine
pg/L
50.0
43.9
45.0
87.8
90.0
10-262
2.4
20.0
2,4-Dichlorophenol
pg/L
50.0
28.9
30.2
57.8
60.4
39-135
4.3
20.0
Diethyl phthalate
pg/L
50.0
38.3
40.0
76.6
80.0
10-114
4.3
20.0
Dimethyl phthalate
pg/L
50.0
38.0
39.9
76.0
79.8
10-112
4.8
20.0
2,4-Dimethyl phenol
pg/L
50.0
42.7
43.2
85.4
86.4
32-119
1.1
20.0
Di-n-butyl phthalate
pg/L
50.0
45.2
47.1
90.4
94.2
10-118
4.1
20.0
4,6- Din itro-2-methylphenol
pg/L
50.0
31.7
34.6
63.4
69.2
10-181
8.7
20.0
2,4-Dinitrophenol
pg/L
50.0
29.1
31.6
58.2
63.2
10-191
8.2
20.0
2,4-Dinitrotoluene
pg/L
50.0
40.5
41.8
81.0
83.6
39-139
3.1
20.0
* QC Fail Date: 12/19/2023 01:41 PM Page 10 of 12
Page 22 of 26

Waypointo
ANALYTICAL
449 Springbrook Rd, Charlotte, NC 28217
Main 704.529.6364
www.waypointanalytical.com
Quality Control Data
Client ID: WSP USA Envi. & Infrastructure Inc. (Charlotte)
Project Description: CDIA - Coffey Creek
Report No: 23-345-0008
QC Prep: V41442 QC Analytical Batch(es): V41470
QC Prep Batch Method: 625.1 (Prep) Analysis Method: 625.1
Analysis Description: 625.1 - Base/Neutrals and Acids by GC/MS
Laboratory Control Sample & LCSD LCS-V41442 LCSD-V41442
Spike
LCS
LCSD
LCS
LCSD
% Rec
Parameter
Units
Conc.
Result
Result
%Rec
% Rec
Limits
RPD
Max
RPD
2,6-Dinitrotoluene
pg/L
50.0
42.6
44.0
85.2
88.0
50-158
3.2
20.0
Di-n-Octyl Phthalate
pg/L
50.0
45.1
46.7
90.2
93.4
10-146
3.4
20.0
Fluoranthene
pg/L
50.0
37.7
39.0
75.4
78.0
26-137
3.3
20.0
Fluorene
pg/L
50.0
33.0
33.9
66.0
67.8
59-121
2.6
20.0
Hexachlorobenzene
pg/L
50.0
37.6
38.8
75.2
77.6
10-152
3.1
20.0
Hexachlorobutadiene
pg/L
50.0
20.4
21.1
40.8
42.2
24-116
3.3
20.0
Hexachlorocyclopentadiene
pg/L
50.0
16.2
16.7
32.4
33.4
32-117
3.0
20.0
Hexachloroethane
pg/L
50.0
22.4
23.4
44.8
46.8
40-113
4.3
20.0
Indeno(1,2,3-cd)pyrene
pg/L
50.0
43.8
43.9
87.6
87.8
10-171
0.2
20.0
Isophorone
pg/L
50.0
29.8
31.7
59.6
63.4
21-196
6.1
20.0
1-Methylnaphthalene
pg/L
50.0
22.3
23.2
44.6
46.4
40-135
3.9
20.0
2-Methylnaphthalene
pg/L
50.0
22.7
23.9
45.4
47.8
18-121
5.1
20.0
Naphthalene
pg/L
50.0
22.1
23.7
44.2
47.4
21-133
6.9
20.0
Nitrobenzene
pg/L
50.0
28.4
30.2
56.8
60.4
35-180
6.1
20.0
2-Nitrophenol
pg/L
50.0
26.0
29.1
52.0
58.2
29-182
11.2
20.0
4-Nitrophenol
pg/L
50.0
17.6
19.0
35.2
38.0
10-132
7.6
20.0
N-Nitrosodiphenylamine
pg/L
50.0
43.7
46.2
87.4
92.4
69-152
5.5
20.0
N-Nitroso-di-n-propylamine
pg/L
50.0
32.9
36.3
65.8
72.6
10-230
9.8
20.0
Pentachlorophenol
pg/L
50.0
44.0
46.4
88.0
92.8
14-176
5.3
20.0
Phenanthrene
pg/L
50.0
37.0
38.7
74.0
77.4
54-120
4.4
20.0
Phenol
pg/L
50.0
13.6
13.9
27.2
27.8
10-112
2.1
20.0
Pyrene
pg/L
50.0
40.2
41.9
80.4
83.8
52-115
4.1
20.0
1,2,4-Trichlorobenzene
pg/L
50.0
20.8
21.9
41.6*
43.8*
44-142
5.1
20.0
2,4,6-Trichlorophenol
pg/L
50.0
33.7
35.6
67.4
71.2
37-144
5.4
20.0
2-Fluorobiphenyl (S)
62.0
63.8
49-118
2-Fluorophenol (S)
41.6
42.2
22-84
* QC Fail
Date: 12/19/2023 01:41 PM
Page 11
of 12
Page 23
of 26

Waypointo
ANALYTICAL
449 Springbrook Rd, Charlotte, NC 28217
Main 704.529.6364
www.waypointanalytical.com
Quality Control Data
Client ID: WSP USA Env!. & Infrastructure Inc. (Charlotte)
Project Description: CDIA - Coffey Creek
Report No: 23-345-0008
QC Prep: V41442
QC Prep Batch Method: 625.1 (Prep)
QC Analytical Batch(es): V41470
Analysis Method: 625.1
Analysis Description: 625.1 - Base/Neutrals and Acids by GC/MS
Laboratory Control Sample & LCSD
LCS-V41442 LCSD-V41442
Spike LCS LCSD
LCS
LCSD
% Rec
Parameter Units
Conc. Result Result
%Rec
% Rec
Limits RPD
Nitrobenzene-d5 (S)
56.0
58.6
43-123
4-Terpheny1-d14 (S)
77.4
81.0
49-151
2,4,6-Tribromophenol (S)
77.9
78.7
31-144
Phenol-d5 (S)
27.4
27.4
10-63
Date: 12/19/2023 01:41 PM Page 12 of 12
Page 24 of 26

WayPAoint.
NALYTICAL
449 Springbrook Rd, Charlotte, NC 28217
Main 704.529.6364
www.waypointanalytical.com
Shipment Receipt Form
Customer Number: 01223
Customer Name: WSP USA Envi. & Infrastructure Inc. (Charlotte)
Report Number: 23-345-0008
Shipping Method
0 Fed Ex 0 US Postal 0 Lab 0 Other:
0 UPS 0 Client 0 Courier Thermometer ID:
IRT15 2.0C
Shipping container/cooler uncompromised?
0 Yes
0 No
Number of coolers/boxes received
F
Custody seals intact on shipping container/cooler?
0 Yes
0 No
# Not Present
Custody seals intact on sample bottles?
0 Yes
0 No
# Not Present
Chain of Custody (COC) present?
# Yes
0 No
COC agrees with sample Iabel(s)?
# Yes
0 No
COC properly completed
# Yes
0 No
Samples in proper containers?
U Yes
0 No
Sample containers intact?
0 Yes
0 No
Sufficient sample volume for indicated test(s)?
U Yes
0 No
All samples received within holding time?
# Yes
0 No
Cooler temperature in compliance?
0 Yes
0 No
Cooler/Samples arrived at the laboratory on ice.
Samples were considered acceptable as cooling
process had begun.
U Yes
0 No
Water - Sample containers properly preserved
0 Yes
0 No
0 N/A
Water - VOA vials free of headspace
0 Yes
0 No
0 N/A
Trip Blanks received with VOAs
0 Yes
* No
0 N/A
Soil VOA method 5035 — compliance criteria met
F_ High concentration container (48 hr)
F_ High concentration pre -weighed (methanol -14 d)
Special precautions or instructions included?
Comments:
0 Yes 0 No U N/A
F Low concentration EnCore samplers (48 hr)
Low conc pre -weighed vials (Sod Bis -14 d)
0Yes ONo
Signature: Angelo Norvell
Date & Time: 12/11/2023 10:31:24
Page 25 of 26

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