NCD003149556_10182024_CTS Reports

WSP USA Environment & Infrastructure Inc. 
1308‐C Patton Avenue 
Asheville, North Carolina 28806 
T: 828‐252‐8130 
North Carolina Corporate Engineering License No. F‐1253, Geology No. C‐247 

October 18, 2024 

Mr. Craig Zeller, P.E. 
U.S. EPA, Region 4 
Remedial Project Manager 
61 Forsyth Street, S.W. 
Atlanta, Georgia 30303 
[e-mail] 

RE: Mills Gap Groundwater Contamination Site (aka CTS of Asheville, Inc. Superfund Site) 
 CERCLA Docket No. CER‐04‐2004‐3755 
 Progress Report, Number 215 (Third Quarter 2024) 
Asheville, Buncombe County, North Carolina 
 WSP Project 6252‐16‐2004 

Dear Mr. Zeller:  

In accordance with the Administrative Order on Consent and Scope of Work for the removal action at the 
Mills Gap Groundwater Contamination Site (also known as the CTS of Asheville, Inc. Superfund Site), 
enclosed for your review is the progress report for the third quarter of 2024. 

If you have any questions, please feel free to call me at (828) 252‐8130. 

Sincerely, 

Matthew E. Wallace, P.E. 
Project Coordinator 

Attachment 

cc: Nathan Bailey, CTS Corporation 
 Beth Hartzell, NCDEQ 
 Kurt Batsel, Northrop Grumman Systems Corporation 

Mills Gap Groundwater Contamination Site 
Progress Report No. 215 

Reporting Period: Third Quarter 2024 
CERCLA Docket No. CER‐04‐2004‐3755 

This progress report has been prepared in accordance with requirements specified in the Scope of Work contained in 
the Administrative Order on Consent for Removal Action issued by the USEPA. 

1) Significant developments during the preceding period: 
 Conducted Site security inspections. 
 Conducted routine operation and maintenance activities for the Springs Vapor Removal and Capture System. 
 Performed routine maintenance and service as scheduled/needed on IRM water supply filtration systems. 
 Performed free product recovery and MW‐11B purging activities. 

2) Developments from the present reporting period: 
 Submitted the Second Quarter 2024 Progress Report to USEPA on July 19, 2024. 
 Conducted Site security inspections. 
 Conducted routine operation and maintenance activities for the Springs Vapor Removal and Capture System. 
 Performed routine maintenance and service as scheduled/needed on IRM water supply filtration systems. 
 Notified USEPA of a force majeure event (Hurricane Helene) by e‐mail on September 30, 2024. 
 Received laboratory report of MW‐11B sampling (after purging event) on July 5, 2024. The laboratory report 
is attached. 
 Received laboratory reports of influent and effluent air sampling from the Springs Vapor Removal and 
Capture System on July 29, 2024 and September 16, 2024. Influent samples ‘INF‐01’ were collected before 
the vacuum blower and effluent samples ‘EFF‐01’ were collected at system discharge. The laboratory reports 
are attached. 

3) Developments anticipated during the next reporting period: 
 Perform Site security inspections. 
 Perform maintenance and service as scheduled/needed on IRM water supply filtration systems. 
 Repair and restart the Springs Vapor Removal and Capture System after the force majeure event. 
 Perform operation and maintenance of the Springs Vapor Removal and Capture System. 

The next progress report representing the fourth quarter of 2024 will be submitted by January 20, 2025. 

#=CL#
July 05, 2024
LIMS USE: FR - GREGORY HUTCHINS
LIMS OBJECT ID: 92739233
92739233
Project:
Pace Project No.:
RE:
Gregory Hutchins
Wood E&IS
1308 Patton Ave Ste C
Asheville, NC 28806
CTS of Asheville
Dear Gregory Hutchins:
Enclosed are the analytical results for sample(s) received by the laboratory on June 28, 2024. The results relate only to the
samples included in this report. Results reported herein conform to the applicable TNI/NELAC Standards and the
laboratory's Quality Manual, where applicable, unless otherwise noted in the body of the report.
The test results provided in this final report were generated by each of the following laboratories within the Pace Network:
• Pace Analytical Services - Charlotte
If you have any questions concerning this report, please feel free to contact me.
Sincerely,
Taylor M Cannon
[e-mail]
Project Manager
704-977-0943
Enclosures
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 1 of 13
#=CP#
CERTIFICATIONS
Pace Project No.:
Project:
92739233
CTS of Asheville
Pace Analytical Services Charlotte
South Carolina Laboratory ID: 99006
9800 Kincey Ave. Ste 100, Huntersville, NC 28078
North Carolina Drinking Water Certification #: 37706
North Carolina Field Services Certification #: 5342
North Carolina Wastewater Certification #: 12
South Carolina Laboratory ID: 99006
South Carolina Certification #: 99006001
South Carolina Drinking Water Cert. #: 99006003
Florida/NELAP Certification #: E87627
Kentucky UST Certification #: 84
Louisiana DoH Drinking Water #: LA029
Virginia/VELAP Certification #: 460221
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 2 of 13
#=SS#
SAMPLE SUMMARY
Pace Project No.:
Project:
92739233
CTS of Asheville
Lab ID Sample ID Matrix Date Collected Date Received
92739233001 TB-89 Water 06/27/24 00:00 06/28/24 14:11
92739233002 MW-11B Water 06/27/24 16:30 06/28/24 14:11
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 3 of 13
#=SA#
SAMPLE ANALYTE COUNT
Pace Project No.:
Project:
92739233
CTS of Asheville
Lab ID Sample ID Method
Analytes
Reported LaboratoryAnalysts
92739233001 TB-89 EPA 8260D 7 PASI-CSAS
92739233002 MW-11B EPA 8260D 7 PASI-CSAS
PASI-C = Pace Analytical Services - Charlotte
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 4 of 13
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92739233
CTS of Asheville
Sample:TB-89 Lab ID:92739233001 Collected:06/27/24 00:00 Received:06/28/24 14:11 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit
Report
Analytical Method: EPA 8260D
Pace Analytical Services - Charlotte
8260D MSV Low Level
cis-1,2-Dichloroethene ND ug/L 07/02/24 13:07 156-59-21.0 0.38 1
trans-1,2-Dichloroethene ND ug/L 07/02/24 13:07 156-60-5 L1,v11.0 0.40 1
Trichloroethene ND ug/L 07/02/24 13:07 79-01-61.0 0.38 1
Vinyl chloride ND ug/L 07/02/24 13:07 75-01-4 v11.0 0.39 1
Surrogates
4-Bromofluorobenzene (S)94 %07/02/24 13:07 460-00-470-130 1
1,2-Dichloroethane-d4 (S)81 %07/02/24 13:07 17060-07-070-130 1
Toluene-d8 (S)97 %07/02/24 13:07 2037-26-570-130 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 07/05/2024 02:36 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 5 of 13
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92739233
CTS of Asheville
Sample:MW-11B Lab ID:92739233002 Collected:06/27/24 16:30 Received:06/28/24 14:11 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit
Report
Analytical Method: EPA 8260D
Pace Analytical Services - Charlotte
8260D MSV Low Level
cis-1,2-Dichloroethene 2530 ug/L 07/02/24 18:40 156-59-225096.0 250
trans-1,2-Dichloroethene ND ug/L 07/02/24 18:40 156-60-5 L1,v125099.0 250
Trichloroethene 28700 ug/L 07/02/24 18:40 79-01-625095.8 250
Vinyl chloride ND ug/L 07/02/24 18:40 75-01-4 v125096.5 250
Surrogates
4-Bromofluorobenzene (S)96 %07/02/24 18:40 460-00-470-130 250
1,2-Dichloroethane-d4 (S)78 %07/02/24 18:40 17060-07-070-130 250
Toluene-d8 (S)97 %07/02/24 18:40 2037-26-570-130 250
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 07/05/2024 02:36 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 6 of 13
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92739233
CTS of Asheville
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
QC Batch:
QC Batch Method:
Analysis Method:
Analysis Description:
865505
EPA 8260D
EPA 8260D
8260D MSV Low Level
Laboratory:Pace Analytical Services - Charlotte
Associated Lab Samples:92739233001, 92739233002
Parameter Units
Blank
Result
Reporting
Limit Qualifiers
METHOD BLANK:4461695
Associated Lab Samples:92739233001, 92739233002
Matrix:Water
AnalyzedMDL
cis-1,2-Dichloroethene ug/L ND 1.0 07/02/24 12:120.38
trans-1,2-Dichloroethene ug/L ND 1.0 v107/02/24 12:120.40
Trichloroethene ug/L ND 1.0 07/02/24 12:120.38
Vinyl chloride ug/L ND 1.0 v107/02/24 12:120.39
1,2-Dichloroethane-d4 (S)%82 70-130 07/02/24 12:12
4-Bromofluorobenzene (S)%96 70-130 07/02/24 12:12
Toluene-d8 (S)%101 70-130 07/02/24 12:12
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
4461696LABORATORY CONTROL SAMPLE:
LCSSpike
cis-1,2-Dichloroethene ug/L 19.820 99 70-130
trans-1,2-Dichloroethene ug/L 26.9 L1,v12013470-130
Trichloroethene ug/L 20.120 100 70-130
Vinyl chloride ug/L 26.0 v12013066-140
1,2-Dichloroethane-d4 (S)%81 70-130
4-Bromofluorobenzene (S)%103 70-130
Toluene-d8 (S)%100 70-130
Parameter Units
MS
Result
% Rec
Limits Qualifiers% RecConc.
4461697MATRIX SPIKE SAMPLE:
MSSpike
Result
92739177003
cis-1,2-Dichloroethene ug/L 14.720 74 67-151ND
trans-1,2-Dichloroethene ug/L 11.6 M0205869-155ND
Trichloroethene ug/L 18.320 91 70-152ND
Vinyl chloride ug/L 0.79J M120451-178ND
1,2-Dichloroethane-d4 (S)%95 70-130
4-Bromofluorobenzene (S)%96 70-130
Toluene-d8 (S)%96 70-130
Parameter Units
Dup
Result
Max
RPD QualifiersRPDResult
92739177004
4461698SAMPLE DUPLICATE:
cis-1,2-Dichloroethene ug/L ND 30ND
trans-1,2-Dichloroethene ug/L ND 30ND
Trichloroethene ug/L ND 30ND
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 07/05/2024 02:36 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 7 of 13
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92739233
CTS of Asheville
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
Parameter Units
Dup
Result
Max
RPD QualifiersRPDResult
92739177004
4461698SAMPLE DUPLICATE:
Vinyl chloride ug/L ND 30ND
1,2-Dichloroethane-d4 (S)%9696
4-Bromofluorobenzene (S)%9796
Toluene-d8 (S)%95101
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 07/05/2024 02:36 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 8 of 13
#=QL#
QUALIFIERS
Pace Project No.:
Project:
92739233
CTS of Asheville
DEFINITIONS
DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot.
ND - Not Detected at or above adjusted reporting limit.
TNTC - Too Numerous To Count
J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit.
MDL - Adjusted Method Detection Limit.
PQL - Practical Quantitation Limit.
RL - Reporting Limit - The lowest concentration value that meets project requirements for quantitative data with known precision and
bias for a specific analyte in a specific matrix.
S - Surrogate
1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte is
a combined concentration.
Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values.
LCS(D) - Laboratory Control Sample (Duplicate)
MS(D) - Matrix Spike (Duplicate)
DUP - Sample Duplicate
RPD - Relative Percent Difference
NC - Not Calculable.
SG - Silica Gel - Clean-Up
U - Indicates the compound was analyzed for, but not detected.
Acid preservation may not be appropriate for 2 Chloroethylvinyl ether.
A separate vial preserved to a pH of 4-5 is recommended in SW846 Chapter 4 for the analysis of Acrolein and Acrylonitrile by EPA
Method 8260.
N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for
each analyte is a combined concentration.
Reported results are not rounded until the final step prior to reporting. Therefore, calculated parameters that are typically reported as
"Total" may vary slightly from the sum of the reported component parameters.
Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes.
TNI - The NELAC Institute.
ANALYTE QUALIFIERS
Analyte recovery in the laboratory control sample (LCS) was above QC limits. Results for this analyte in associated
samples may be biased high.L1
Matrix spike recovery and/or matrix spike duplicate recovery was outside laboratory control limits.M0
Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery.M1
The continuing calibration verification was above the method acceptance limit. Any detection for the analyte in the
associated samples may have a high bias.v1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 07/05/2024 02:36 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 9 of 13
#=CR#
QUALITY CONTROL DATA CROSS REFERENCE TABLE
Pace Project No.:
Project:
92739233
CTS of Asheville
Lab ID Sample ID QC Batch Method QC Batch Analytical Method
Analytical
Batch
92739233001 865505TB-89 EPA 8260D
92739233002 865505MW-11B EPA 8260D
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 07/05/2024 02:36 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 10 of 13
Page 11 of 13
Page 12 of 13
Page 13 of 13
ALS Environmental
2655 Park Center Dr., Suite A
Simi Valley, CA 93065
T [phone]
alsglobal.com

LABORATORY REPORT
________________________________________________________________________________
July 29, 2024

Greg Hutchins
WSP USA
1308 Patton Avenue, Suite C
Asheville, NC 28806-2604

RE: CTS of Asheville / 6252.16.2004.01

Dear Greg:

Enclosed are the results of the samples submitted to our laboratory on July 18, 2024. For your reference,
these analyses have been assigned our service request number P2402916.

All analyses were performed according to our laboratory’s NELAP and DoD-ELAP-approved quality
assurance program. The test results meet requirements of the current NELAP and DoD-ELAP standards,
where applicable, and except as noted in the laboratory case narrative provided. For a specific list of
NELAP and DoD-ELAP-accredited analytes, refer to the certifications section at www.alsglobal.com.
Results are intended to be considered in their entirety and apply only to the samples analyzed and
reported herein.

If you have any questions, please call me at [phone].

ALS | Environmental

Sarah Mock
Project Manager
Page 1 of 19
By Sarah Mock at 9:54 am, Jul 29, 2024
ALS Environmental
2655 Park Center Dr., Suite A
Simi Valley, CA 93065
T [phone]
alsglobal.com

Client: WSP USA Service Request No: P2402916
Project: CTS of Asheville / 6252.16.2004.01
____________________________________________________________________________________
The samples were received intact under chain of custody on July 18, 2024 and were stored in accordance
with the analytical method requirements. Please refer to the sample acceptance check form for additional
information. The results reported herein are applicable only to the condition of the samples at the time of
sample receipt.

Volatile Organic Compound Analysis

The samples were analyzed for volatile organic compounds in accordance with EPA Method TO-15
from the Compendium of Methods for the Determination of Toxic Organic Compounds in Ambient
Air, Second Edition (EPA/625/R-96/010b), January, 1999. This procedure is described in laboratory
SOP VOA-TO15. The analytical system was comprised of a gas chromatograph/mass spectrometer
(GC/MS) interfaced to a whole-air preconcentrator. According to the method, the use of Tedlar bags is
considered a method modification. This method is included on the laboratory’s NELAP and DoD-ELAP
scope of accreditation. Any analytes flagged with an X are not included on the NELAP or DoD-ELAP
accreditation.
________________________________________________________________________________

The results of analyses are given in the attached laboratory report. All results are intended to be considered in their entirety, and ALS
Environmental (ALS) is not responsible for utilization of less than the complete report.

Use of ALS Environmental (ALS)’s Name. Client shall not use ALS’s name or trademark in any marketing or reporting materials, press
releases or in any other manner (“Materials”) whatsoever and shall not attribute to ALS any test result, tolerance or specification
derived from ALS’s data (“Attribution”) without ALS’s prior written consent, which may be withheld by ALS for any reason in its sole
discretion. To request ALS’s consent, Client shall provide copies of the proposed Materials or Attribution and describe in writing
Client’s proposed use of such Materials or Attribution. If ALS has not provided written approval of the Materials or Attribution within
ten (10) days of receipt from Client, Client’s request to use ALS’s name or trademark in any Materials or Attribution shall be deemed
denied. ALS may, in its discretion, reasonably charge Client for its time in reviewing Materials or Attribution requests. Client
acknowledges and agrees that the unauthorized use of ALS’s name or trademark may cause ALS to incur irreparable harm for which
the recovery of money damages will be inadequate. Accordingly, Client acknowledges and agrees that a violation shall justify
preliminary injunctive relief. For questions contact the laboratory.

Page 2 of 19
ALS Environmental
2655 Park Center Dr., Suite A
Simi Valley, CA 93065
T [phone]
alsglobal.com

CERTIFICATIONS, ACCREDITATIONS, AND REGISTRATIONS

Agency Web Site Number
Alaska DEC https://dec.alaska.gov/spar/csp/lab-approval/list-of-approved-labs 17-019
Arizona DHS http://www.azdhs.gov/preparedness/state-laboratory/lab-licensure-
certification/index.php#laboratory-licensure-home AZ0694
Florida DOH
(NELAP)
http://www.floridahealth.gov/licensing-and-regulation/environmental-
laboratories/index.html E871020
Louisiana DEQ
(NELAP)
https://internet.deq.louisiana.gov/portal/divisions/lelap/accredited-
laboratories 05071
Maine DHHS health/dwp/professionals/labCert.shtm 2022028
Minnesota DOH http://www.health.state.mn.us/accreditation 006-999-456
New Jersey DEP
(NELAP) https://dep.nj.gov/dsr/oqa/certified-laboratories/ CA009
(NELAP) http://www.wadsworth.org/labcert/elap/elap.html 11221
Oklahoma DEQ labaccreditation.deq.ok.gov/labaccreditation/ 2207
Oregon PHD
(NELAP)
http://www.oregon.gov/oha/ph/LaboratoryServices/EnvironmentalLaboratoryA
ccreditation/Pages/index.aspx 4068-012
Pennsylvania DEP Accreditation-Program.aspx (Registration)
PJLA
(DoD ELAP) http://www.pjlabs.com/search-accredited-labs 65818
(Testing)
Texas CEQ
(NELAP) http://www.tceq.texas.gov/agency/qa/env_lab_accreditation.html T104704413-
23-14
(NELAP) https://uphl.utah.gov/certifications/environmental-laboratory-certification/ -15
Washington DOE http://www.ecy.wa.gov/programs/eap/labs/lab-accreditation.html C946
A complete listing of specific NELAP and DoD-
www.alsglobal.com, or at the accreditation body’s website.

Page 3 of 19
P2402916_Detail Summary_2407261627_DP.xls - DETAIL SUMMARY
Client:WSP USA Service Request:P2402916
Project ID:CTS of Asheville / 6252.16.2004.01
Date Received:7/18/2024
Time Received:09:36
Client Sample ID Lab Code Matrix
INF-01 P2402916-001 Air 7/17/2024 10:05 X
EFF-01 P2402916-002 Air 7/17/2024 10:00 X
ALS ENVIRONMENTAL
Page 4 of 19
Page 5 of 19
ALS Environmental
Sample Acceptance Check Form
Client:WSP USA Work order:
Project:CTS of Asheville / 6252.16.2004.01
Sample(s) received on:7/18/2024 Date opened:7/18/2024 by:
Note: This form is used for all samples received by ALS. The use of this form for custody seals is strictly meant to indicate presence/absence and not as an indication of
compliance or nonconformity. Thermal preservation and pH will only be evaluated either at the request of the client and/or as required by the method/SOP.
Yes No N/A
1 Were sample containers properly marked with client sample ID?x o o
2 Did sample containers arrive in good condition?x o o
3 Were chain-of-custody papers used and filled out?x o o
4 Did sample container labels and/or tags agree with custody papers?x o o
5 Was sample volume received adequate for analysis?x o o
6 Are samples within specified holding times?x o o
7 Was proper temperature (thermal preservation) of cooler at receipt adhered to?o o x
8 Were custody seals on outside of cooler/Box/Container?o x o
Location of seal(s)?Sealing Lid?o o x
Were signature and date included?o o x
Were seals intact?o o x
9 o o x
Is there a client indication that the submitted samples are pH preserved?o o x
Were VOA vials checked for presence/absence of air bubbles?o o x
o o x
10 Tubes: Are the tubes capped and intact?o o x
11 Badges: Are the badges properly capped and intact?o o x
Are dual bed badges separated and individually capped and intact?o o x
12 Lab Notification: Analyst and PM were alerted of Short HT or RUSH samples?o o x
13 Client Notification: Client has been notified regarding HT exceedances and/or other CoC discrepancies?o o x
Lab Sample ID Container Required Received Adjusted VOA Headspace
Description pH *pH pH (Presence/Absence)Comments
1.0 L Tedlar Bag
1.0 L Tedlar Bag
Sulfur (pH>4)

Explain any discrepancies: (include lab sample ID numbers):
Do containers have appropriate preservation, according to method/SOP or Client specified information?
Does the client/method/SOP require that the analyst check the sample pH and if necessary alter it?
Receipt / Preservation
P2402916-001.01
P2402916-002.01
ANTHONY.VASQUEZ
P2402916
P2402916_WSP USA_CTS of Asheville _ 6252.16.2004.01 - Page 1 of 1 7/18/2024 9:56 AMPage 6 of 19
TO15SCAN1.XLS - 62 Compounds - PageNo.:P2402916_TO15_2407241713_SC.xls - Sample
ALS ENVIRONMENTAL

RESULTS OF ANALYSIS
Page 1 of 3
Client:WSP USA
INF-01 ALS Project ID:P2402916
ALS Sample ID:P2402916-001
Test Code:EPA TO-15 Modified Date Collected:7/17/24
Instrument ID:Tekmar AUTOCAN/Agilent 5975Binert/6890N/MS13 Date Received:7/18/24
Analyst:Marlow Cobian Date Analyzed:7/19/24
Sample Type:1.0 L Tedlar Bag Volume(s) Analyzed:0.050 Liter(s)
Test Notes:

CAS #Compound MRL MRL Data
µg/m³ ppbV Qualifier
115-07-1 Propene ND 11 ND 6.2
75-71-8 Dichlorodifluoromethane (CFC 12)ND 10 ND 2.1
74-87-3 Chloromethane ND 11 ND 5.2
76-14-2 ND 11 ND 1.6
75-01-4 Vinyl Chloride 31 11 12 4.1
106-99-0 1,3-Butadiene ND 11 ND 4.8
74-83-9 Bromomethane ND 10 ND 2.6
75-00-3 Chloroethane ND 11 ND 4.2
67-64-1 Acetone ND 100 ND 43
75-69-4 Trichlorofluoromethane (CFC 11)ND 10 ND 1.8
67-63-0 2-Propanol (Isopropyl Alcohol)ND 20 ND 8.1
75-35-4 1,1-Dichloroethene 33 9.0 8.3 2.3
75-09-2 Methylene Chloride ND 9.2 ND 2.6
76-13-1 Trichlorotrifluoroethane (CFC 113)9.2 9.0 1.2 1.2
75-15-0 Carbon Disulfide ND 21 ND 6.7
156-60-5 trans-1,2-Dichloroethene ND 11 ND 2.7
75-34-3 1,1-Dichloroethane ND 10 ND 2.6
1634-04-4 Methyl tert-Butyl Ether ND 11 ND 3.0
108-05-4 Vinyl Acetate ND 110 ND 31
78-93-3 2-Butanone (MEK)ND 20 ND 6.9
156-59-2 cis-1,2-Dichloroethene 1,200 10 310 2.6
ND = Compound was analyzed for, but not detected above the laboratory reporting limit.
MRL = Method Reporting Limit - The minimum quantity of a target analyte that can be confidently determined by the referenced method.

µg/m³
Client Sample ID:
Client Project ID:CTS of Asheville / 6252.16.2004.01
ppbV
ResultResult
Page 7 of 19
TO15SCAN1.XLS - 62 Compounds - PageNo.:P2402916_TO15_2407241713_SC.xls - Sample
ALS ENVIRONMENTAL
RESULTS OF ANALYSIS
Page 2 of 3
Client:WSP USA
INF-01 ALS Project ID:P2402916
ALS Sample ID:P2402916-001
Test Code:EPA TO-15 Modified Date Collected:7/17/24
Instrument ID:Tekmar AUTOCAN/Agilent 5975Binert/6890N/MS13 Date Received:7/18/24
Analyst:Marlow Cobian Date Analyzed:7/19/24
Sample Type:1.0 L Tedlar Bag Volume(s) Analyzed:0.050 Liter(s)
Test Notes:

CAS #Compound MRL MRL Data
µg/m³ ppbV Qualifier
141-78-6 Ethyl Acetate ND 40 ND 11
110-54-3 n-Hexane ND 11 ND 3.0
67-66-3 Chloroform ND 11 ND 2.2
109-99-9 Tetrahydrofuran (THF)ND 20 ND 6.8
107-06-2 1,2-Dichloroethane ND 10 ND 2.5
71-55-6 1,1,1-Trichloroethane 27 10 5.0 1.9
71-43-2 Benzene ND 10 ND 3.2
56-23-5 Carbon Tetrachloride ND 10 ND 1.7
110-82-7 Cyclohexane ND 22 ND 6.4
78-87-5 1,2-Dichloropropane ND 11 ND 2.3
75-27-4 Bromodichloromethane ND 11 ND 1.6
79-01-6 Trichloroethene 1,000 10 190 1.9
123-91-1 1,4-Dioxane ND 10 ND 2.9
142-82-5 n-Heptane ND 11 ND 2.6
10061-01-5 cis-1,3-Dichloropropene ND 11 ND 2.3
108-10-1 4-Methyl-2-pentanone ND 21 ND 5.1
10061-02-6 trans-1,3-Dichloropropene ND 9.8 ND 2.2
79-00-5 1,1,2-Trichloroethane ND 11 ND 2.0
108-88-3 Toluene ND 11 ND 2.9
591-78-6 2-Hexanone ND 20 ND 5.0
ND = Compound was analyzed for, but not detected above the laboratory reporting limit.
MRL = Method Reporting Limit - The minimum quantity of a target analyte that can be confidently determined by the referenced method.

ppbV
Result Result
Client Sample ID:
Client Project ID:CTS of Asheville / 6252.16.2004.01
µg/m³
Page 8 of 19
TO15SCAN1.XLS - 62 Compounds - PageNo.:P2402916_TO15_2407241713_SC.xls - Sample
ALS ENVIRONMENTAL
RESULTS OF ANALYSIS
Page 3 of 3
Client:WSP USA
INF-01 ALS Project ID:P2402916
ALS Sample ID:P2402916-001
Test Code:EPA TO-15 Modified Date Collected:7/17/24
Instrument ID:Tekmar AUTOCAN/Agilent 5975Binert/6890N/MS13 Date Received:7/18/24
Analyst:Marlow Cobian Date Analyzed:7/19/24
Sample Type:1.0 L Tedlar Bag Volume(s) Analyzed:0.050 Liter(s)
Test Notes:

MRL MRL Data
CAS #Compound µg/m³ ppbV Qualifier
124-48-1 Dibromochloromethane ND 10 ND 1.2
106-93-4 1,2-Dibromoethane ND 10 ND 1.4
127-18-4 Tetrachloroethene ND 11 ND 1.6
108-90-7 Chlorobenzene ND 11 ND 2.3
100-41-4 Ethylbenzene ND 11 ND 2.5
179601-23-1 m,p-Xylenes ND 21 ND 4.9
75-25-2 Bromoform ND 11 ND 1.1
100-42-5 Styrene ND 11 ND 2.5
95-47-6 o-Xylene ND 11 ND 2.5
79-34-5 1,1,2,2-Tetrachloroethane ND 11 ND 1.6
98-82-8 Cumene ND 10 ND 2.1
622-96-8 4-Ethyltoluene ND 10 ND 2.1
108-67-8 1,3,5-Trimethylbenzene ND 11 ND 2.2
95-63-6 1,2,4-Trimethylbenzene ND 10 ND 2.1
100-44-7 Benzyl Chloride ND 41 ND 8.0
541-73-1 1,3-Dichlorobenzene ND 10 ND 1.7
106-46-7 1,4-Dichlorobenzene ND 10 ND 1.7
95-50-1 1,2-Dichlorobenzene ND 10 ND 1.7
120-82-1 1,2,4-Trichlorobenzene ND 21 ND 2.9
91-20-3 Naphthalene ND 10 ND 1.9
87-68-3 Hexachlorobutadiene ND 10 ND 0.96
ND = Compound was analyzed for, but not detected above the laboratory reporting limit.
MRL = Method Reporting Limit - The minimum quantity of a target analyte that can be confidently determined by the referenced method.

CTS of Asheville / 6252.16.2004.01
ppbV
Result
Client Sample ID:
Client Project ID:
µg/m³
Result
Page 9 of 19
TO15SCAN1.XLS - 62 Compounds - PageNo.:P2402916_TO15_2407241713_SC.xls - Sample (2)
ALS ENVIRONMENTAL

RESULTS OF ANALYSIS
Page 1 of 3
Client:WSP USA
EFF-01 ALS Project ID:P2402916
ALS Sample ID:P2402916-002
Test Code:EPA TO-15 Modified Date Collected:7/17/24
Instrument ID:Tekmar AUTOCAN/Agilent 5975Binert/6890N/MS13 Date Received:7/18/24
Analyst:Marlow Cobian Date Analyzed:7/19/24
Sample Type:1.0 L Tedlar Bag Volume(s) Analyzed:0.050 Liter(s)
Test Notes:

CAS #Compound MRL MRL Data
µg/m³ ppbV Qualifier
115-07-1 Propene ND 11 ND 6.2
75-71-8 Dichlorodifluoromethane (CFC 12)ND 10 ND 2.1
74-87-3 Chloromethane ND 11 ND 5.2
76-14-2 ND 11 ND 1.6
75-01-4 Vinyl Chloride 33 11 13 4.1
106-99-0 1,3-Butadiene ND 11 ND 4.8
74-83-9 Bromomethane ND 10 ND 2.6
75-00-3 Chloroethane ND 11 ND 4.2
67-64-1 Acetone ND 100 ND 43
75-69-4 Trichlorofluoromethane (CFC 11)ND 10 ND 1.8
67-63-0 2-Propanol (Isopropyl Alcohol)ND 20 ND 8.1
75-35-4 1,1-Dichloroethene ND 9.0 ND 2.3
75-09-2 Methylene Chloride ND 9.2 ND 2.6
76-13-1 Trichlorotrifluoroethane (CFC 113)ND 9.0 ND 1.2
75-15-0 Carbon Disulfide ND 21 ND 6.7
156-60-5 trans-1,2-Dichloroethene ND 11 ND 2.7
75-34-3 1,1-Dichloroethane ND 10 ND 2.6
1634-04-4 Methyl tert-Butyl Ether ND 11 ND 3.0
108-05-4 Vinyl Acetate ND 110 ND 31
78-93-3 2-Butanone (MEK)ND 20 ND 6.9
156-59-2 cis-1,2-Dichloroethene 72 10 18 2.6
ND = Compound was analyzed for, but not detected above the laboratory reporting limit.
MRL = Method Reporting Limit - The minimum quantity of a target analyte that can be confidently determined by the referenced method.

Client Sample ID:
Client Project ID:CTS of Asheville / 6252.16.2004.01
ppbV
ResultResult
µg/m³
Page 10 of 19
TO15SCAN1.XLS - 62 Compounds - PageNo.:P2402916_TO15_2407241713_SC.xls - Sample (2)
ALS ENVIRONMENTAL
RESULTS OF ANALYSIS
Page 2 of 3
Client:WSP USA
EFF-01 ALS Project ID:P2402916
ALS Sample ID:P2402916-002
Test Code:EPA TO-15 Modified Date Collected:7/17/24
Instrument ID:Tekmar AUTOCAN/Agilent 5975Binert/6890N/MS13 Date Received:7/18/24
Analyst:Marlow Cobian Date Analyzed:7/19/24
Sample Type:1.0 L Tedlar Bag Volume(s) Analyzed:0.050 Liter(s)
Test Notes:

CAS #Compound MRL MRL Data
µg/m³ ppbV Qualifier
141-78-6 Ethyl Acetate ND 40 ND 11
110-54-3 n-Hexane ND 11 ND 3.0
67-66-3 Chloroform ND 11 ND 2.2
109-99-9 Tetrahydrofuran (THF)ND 20 ND 6.8
107-06-2 1,2-Dichloroethane ND 10 ND 2.5
71-55-6 1,1,1-Trichloroethane ND 10 ND 1.9
71-43-2 Benzene ND 10 ND 3.2
56-23-5 Carbon Tetrachloride ND 10 ND 1.7
110-82-7 Cyclohexane ND 22 ND 6.4
78-87-5 1,2-Dichloropropane ND 11 ND 2.3
75-27-4 Bromodichloromethane ND 11 ND 1.6
79-01-6 Trichloroethene 27 10 4.9 1.9
123-91-1 1,4-Dioxane ND 10 ND 2.9
142-82-5 n-Heptane ND 11 ND 2.6
10061-01-5 cis-1,3-Dichloropropene ND 11 ND 2.3
108-10-1 4-Methyl-2-pentanone ND 21 ND 5.1
10061-02-6 trans-1,3-Dichloropropene ND 9.8 ND 2.2
79-00-5 1,1,2-Trichloroethane ND 11 ND 2.0
108-88-3 Toluene ND 11 ND 2.9
591-78-6 2-Hexanone ND 20 ND 5.0
ND = Compound was analyzed for, but not detected above the laboratory reporting limit.
MRL = Method Reporting Limit - The minimum quantity of a target analyte that can be confidently determined by the referenced method.

µg/m³
Client Sample ID:
Client Project ID:CTS of Asheville / 6252.16.2004.01
ppbV
Result Result
Page 11 of 19
TO15SCAN1.XLS - 62 Compounds - PageNo.:P2402916_TO15_2407241713_SC.xls - Sample (2)
ALS ENVIRONMENTAL
RESULTS OF ANALYSIS
Page 3 of 3
Client:WSP USA
EFF-01 ALS Project ID:P2402916
ALS Sample ID:P2402916-002
Test Code:EPA TO-15 Modified Date Collected:7/17/24
Instrument ID:Tekmar AUTOCAN/Agilent 5975Binert/6890N/MS13 Date Received:7/18/24
Analyst:Marlow Cobian Date Analyzed:7/19/24
Sample Type:1.0 L Tedlar Bag Volume(s) Analyzed:0.050 Liter(s)
Test Notes:

MRL MRL Data
CAS #Compound µg/m³ ppbV Qualifier
124-48-1 Dibromochloromethane ND 10 ND 1.2
106-93-4 1,2-Dibromoethane ND 10 ND 1.4
127-18-4 Tetrachloroethene ND 11 ND 1.6
108-90-7 Chlorobenzene ND 11 ND 2.3
100-41-4 Ethylbenzene ND 11 ND 2.5
179601-23-1 m,p-Xylenes ND 21 ND 4.9
75-25-2 Bromoform ND 11 ND 1.1
100-42-5 Styrene ND 11 ND 2.5
95-47-6 o-Xylene ND 11 ND 2.5
79-34-5 1,1,2,2-Tetrachloroethane ND 11 ND 1.6
98-82-8 Cumene ND 10 ND 2.1
622-96-8 4-Ethyltoluene ND 10 ND 2.1
108-67-8 1,3,5-Trimethylbenzene ND 11 ND 2.2
95-63-6 1,2,4-Trimethylbenzene ND 10 ND 2.1
100-44-7 Benzyl Chloride ND 41 ND 8.0
541-73-1 1,3-Dichlorobenzene ND 10 ND 1.7
106-46-7 1,4-Dichlorobenzene ND 10 ND 1.7
95-50-1 1,2-Dichlorobenzene ND 10 ND 1.7
120-82-1 1,2,4-Trichlorobenzene ND 21 ND 2.9
91-20-3 Naphthalene ND 10 ND 1.9
87-68-3 Hexachlorobutadiene ND 10 ND 0.96
ND = Compound was analyzed for, but not detected above the laboratory reporting limit.
MRL = Method Reporting Limit - The minimum quantity of a target analyte that can be confidently determined by the referenced method.

Client Sample ID:
Client Project ID:
µg/m³
Result
CTS of Asheville / 6252.16.2004.01
ppbV
Result
Page 12 of 19
TO15SCAN1.XLS - 62 Compounds - PageNo.:P2402916_TO15_2407241713_SC.xls - MBlank
ALS ENVIRONMENTAL

RESULTS OF ANALYSIS
Page 1 of 3
Client:WSP USA
Method Blank ALS Project ID:P2402916
ALS Sample ID:P240719-MB

Test Code:EPA TO-15 Modified Date Collected:NA
Instrument ID:Tekmar AUTOCAN/Agilent 5975Binert/6890N/MS13 Date Received:NA
Analyst:Marlow Cobian Date Analyzed:7/19/24
Sample Type:1.0 L Tedlar Bag Volume(s) Analyzed:1.00 Liter(s)
Test Notes:

CAS #Compound MRL MRL Data
µg/m³ ppbV Qualifier
115-07-1 Propene ND 0.53 ND 0.31
75-71-8 Dichlorodifluoromethane (CFC 12)ND 0.52 ND 0.11
74-87-3 Chloromethane ND 0.54 ND 0.26
76-14-2 ND 0.55 ND 0.079
75-01-4 Vinyl Chloride ND 0.53 ND 0.21
106-99-0 1,3-Butadiene ND 0.53 ND 0.24
74-83-9 Bromomethane ND 0.51 ND 0.13
75-00-3 Chloroethane ND 0.55 ND 0.21
67-64-1 Acetone ND 5.1 ND 2.2
75-69-4 Trichlorofluoromethane (CFC 11)ND 0.51 ND 0.091
67-63-0 2-Propanol (Isopropyl Alcohol)ND 0.99 ND 0.40
75-35-4 1,1-Dichloroethene ND 0.45 ND 0.11
75-09-2 Methylene Chloride ND 0.46 ND 0.13
76-13-1 Trichlorotrifluoroethane (CFC 113)ND 0.45 ND 0.059
75-15-0 Carbon Disulfide ND 1.0 ND 0.33
156-60-5 trans-1,2-Dichloroethene ND 0.53 ND 0.13
75-34-3 1,1-Dichloroethane ND 0.52 ND 0.13
1634-04-4 Methyl tert-Butyl Ether ND 0.54 ND 0.15
108-05-4 Vinyl Acetate ND 5.4 ND 1.5
78-93-3 2-Butanone (MEK)ND 1.0 ND 0.35
156-59-2 cis-1,2-Dichloroethene ND 0.52 ND 0.13
ND = Compound was analyzed for, but not detected above the laboratory reporting limit.
MRL = Method Reporting Limit - The minimum quantity of a target analyte that can be confidently determined by the referenced method.

Client Sample ID:
Client Project ID:CTS of Asheville / 6252.16.2004.01
Result Result
ppbVµg/m³
Page 13 of 19
TO15SCAN1.XLS - 62 Compounds - PageNo.:P2402916_TO15_2407241713_SC.xls - MBlank
ALS ENVIRONMENTAL
RESULTS OF ANALYSIS
Page 2 of 3
Client:WSP USA
Method Blank ALS Project ID:P2402916
ALS Sample ID:P240719-MB
Test Code:EPA TO-15 Modified Date Collected:NA
Instrument ID:Tekmar AUTOCAN/Agilent 5975Binert/6890N/MS13 Date Received:NA
Analyst:Marlow Cobian Date Analyzed:7/19/24
Sample Type:1.0 L Tedlar Bag Volume(s) Analyzed:1.00 Liter(s)
Test Notes:

CAS #Compound MRL MRL Data
µg/m³ ppbV Qualifier
141-78-6 Ethyl Acetate ND 2.0 ND 0.56
110-54-3 n-Hexane ND 0.53 ND 0.15
67-66-3 Chloroform ND 0.54 ND 0.11
109-99-9 Tetrahydrofuran (THF)ND 1.0 ND 0.34
107-06-2 1,2-Dichloroethane ND 0.51 ND 0.13
71-55-6 1,1,1-Trichloroethane ND 0.52 ND 0.095
71-43-2 Benzene ND 0.51 ND 0.16
56-23-5 Carbon Tetrachloride ND 0.52 ND 0.083
110-82-7 Cyclohexane ND 1.1 ND 0.32
78-87-5 1,2-Dichloropropane ND 0.54 ND 0.12
75-27-4 Bromodichloromethane ND 0.53 ND 0.079
79-01-6 Trichloroethene ND 0.52 ND 0.097
123-91-1 1,4-Dioxane ND 0.52 ND 0.14
142-82-5 n-Heptane ND 0.53 ND 0.13
10061-01-5 cis-1,3-Dichloropropene ND 0.53 ND 0.12
108-10-1 4-Methyl-2-pentanone ND 1.1 ND 0.26
10061-02-6 trans-1,3-Dichloropropene ND 0.49 ND 0.11
79-00-5 1,1,2-Trichloroethane ND 0.55 ND 0.10
108-88-3 Toluene ND 0.54 ND 0.14
591-78-6 2-Hexanone ND 1.0 ND 0.25
ND = Compound was analyzed for, but not detected above the laboratory reporting limit.
MRL = Method Reporting Limit - The minimum quantity of a target analyte that can be confidently determined by the referenced method.

Client Sample ID:
Client Project ID:CTS of Asheville / 6252.16.2004.01
Result
ppbV
Result
µg/m³
Page 14 of 19
TO15SCAN1.XLS - 62 Compounds - PageNo.:P2402916_TO15_2407241713_SC.xls - MBlank
ALS ENVIRONMENTAL
RESULTS OF ANALYSIS
Page 3 of 3
Client:WSP USA
Method Blank ALS Project ID:P2402916
ALS Sample ID:P240719-MB
Test Code:EPA TO-15 Modified Date Collected:NA
Instrument ID:Tekmar AUTOCAN/Agilent 5975Binert/6890N/MS13 Date Received:NA
Analyst:Marlow Cobian Date Analyzed:7/19/24
Sample Type:1.0 L Tedlar Bag Volume(s) Analyzed:1.00 Liter(s)
Test Notes:

MRL MRL Data
CAS #Compound µg/m³ ppbV Qualifier
124-48-1 Dibromochloromethane ND 0.51 ND 0.060
106-93-4 1,2-Dibromoethane ND 0.52 ND 0.068
127-18-4 Tetrachloroethene ND 0.54 ND 0.080
108-90-7 Chlorobenzene ND 0.54 ND 0.12
100-41-4 Ethylbenzene ND 0.55 ND 0.13
179601-23-1 m,p-Xylenes ND 1.1 ND 0.25
75-25-2 Bromoform ND 0.55 ND 0.053
100-42-5 Styrene ND 0.53 ND 0.12
95-47-6 o-Xylene ND 0.54 ND 0.12
79-34-5 1,1,2,2-Tetrachloroethane ND 0.54 ND 0.079
98-82-8 Cumene ND 0.52 ND 0.11
622-96-8 4-Ethyltoluene ND 0.52 ND 0.11
108-67-8 1,3,5-Trimethylbenzene ND 0.54 ND 0.11
95-63-6 1,2,4-Trimethylbenzene ND 0.52 ND 0.11
100-44-7 Benzyl Chloride ND 2.1 ND 0.40
541-73-1 1,3-Dichlorobenzene ND 0.52 ND 0.087
106-46-7 1,4-Dichlorobenzene ND 0.52 ND 0.087
95-50-1 1,2-Dichlorobenzene ND 0.52 ND 0.087
120-82-1 1,2,4-Trichlorobenzene ND 1.1 ND 0.14
91-20-3 Naphthalene ND 0.51 ND 0.097
87-68-3 Hexachlorobutadiene ND 0.51 ND 0.048
ND = Compound was analyzed for, but not detected above the laboratory reporting limit.
MRL = Method Reporting Limit - The minimum quantity of a target analyte that can be confidently determined by the referenced method.

Result
ppbV
Client Sample ID:
Client Project ID:
µg/m³
CTS of Asheville / 6252.16.2004.01
Result
Page 15 of 19
TO15SCAN1.XLS - 62 Compounds - PageNo.:P2402916_TO15_2407241713_SC.xls - Surrogates
ALS ENVIRONMENTAL

SURROGATE SPIKE RECOVERY RESULTS
Page 1 of 1
Client:WSP USA
ALS Project ID:P2402916

Test Code:EPA TO-15 Modified
Instrument ID:Tekmar AUTOCAN/Agilent 5975Binert/6890N/MS13 Date(s) Collected:7/17/24
Analyst:Marlow Cobian Date(s) Received:7/18/24
Sample Type:1.0 L Tedlar Bag(s)Date(s) Analyzed:7/19/24
Test Notes:

Client Sample ID ALS Sample ID Acceptance Data
Limits Qualifier
P240719-MB 70-130
P240719-LCS 70-130
P240719-DLCS 70-130
P2402916-001 70-130
P2402916-002 70-130
Surrogate percent recovery is verified and accepted based on the on-column result.
Reported results are shown in concentration units and as a result of the calculation, may vary slightly from the on-column percent recovery.
101 100
8379
89
95
102 91
Bromofluorobenzene
101
Toluene-d8
100
98101100
Client Project ID:
100Duplicate Lab Control Sample
97
CTS of Asheville / 6252.16.2004.01
1,2-Dichloroethane-d4
Page 16 of 19
TO15SCAN1.XLS - 62 Compounds - PageNo.:P2402916_TO15_2407241713_SC.xls - DLCS
ALS ENVIRONMENTAL

LABORATORY CONTROL SAMPLE / DUPLICATE LABORATORY CONTROL SAMPLE SUMMARY
Page 1 of 3
Client:WSP USA
Duplicate Lab Control Sample ALS Project ID:P2402916
ALS Sample ID:P240719-DLCS

Test Code:EPA TO-15 Modified Date Collected:NA
Instrument ID:Tekmar AUTOCAN/Agilent 5975Binert/6890N/MS13 Date Received:NA
Analyst:Marlow Cobian Date Analyzed:7/19/24
Sample Type:1.0 L Tedlar Bag Volume(s) Analyzed:0.125 Liter(s)
Test Notes:

ALS
CAS #Compound LCS / DLCS LCS DLCS Acceptance RPD RPD Data
µg/m³µg/m³µg/m³LCS DLCS Limits Limit Qualifier
115-07-1 Propene 212 176 181 83 85 50-133 2 25
75-71-8 Dichlorodifluoromethane (CFC 12)204 193 201 95 99 66-122 4 25
74-87-3 Chloromethane 208 195 227 94 109 56-131 15 25
76-14-2 208 195 209 94 100 63-120 6 25
75-01-4 Vinyl Chloride 212 183 187 86 88 57-129 2 25
106-99-0 1,3-Butadiene 212 176 185 83 87 62-132 5 25
74-83-9 Bromomethane 210 192 202 91 96 72-120 5 25
75-00-3 Chloroethane 212 189 193 89 91 67-123 2 25
67-64-1 Acetone 1,060 882 906 83 85 61-120 2 25
75-69-4 Trichlorofluoromethane (CFC 11)210 184 189 88 90 65-122 2 25
67-63-0 2-Propanol (Isopropyl Alcohol)418 347 359 83 86 59-132 4 25
75-35-4 1,1-Dichloroethene 208 191 199 92 96 75-120 4 25
75-09-2 Methylene Chloride 208 162 168 78 81 71-123 4 25
76-13-1 Trichlorotrifluoroethane (CFC 113)210 191 196 91 93 65-121 2 25
75-15-0 Carbon Disulfide 430 343 354 80 82 69-115 2 25
156-60-5 trans-1,2-Dichloroethene 218 201 207 92 95 67-123 3 25
75-34-3 1,1-Dichloroethane 216 184 190 85 88 66-120 3 25
1634-04-4 Methyl tert-Butyl Ether 216 206 214 95 99 65-124 4 25
108-05-4 Vinyl Acetate 1,090 1030 1070 94 98 76-147 4 25
78-93-3 2-Butanone (MEK)414 396 414 96 100 70-125 4 25
156-59-2 cis-1,2-Dichloroethene 216 190 196 88 91 64-120 3 25
Laboratory Control Sample percent recovery is verified and accepted based on the on-column result.
Reported results are shown in concentration units and as a result of the calculation, may vary slightly.

% Recovery
CTS of Asheville / 6252.16.2004.01
Client Sample ID:
Client Project ID:
Page 17 of 19
TO15SCAN1.XLS - 62 Compounds - PageNo.:P2402916_TO15_2407241713_SC.xls - DLCS
ALS ENVIRONMENTAL
LABORATORY CONTROL SAMPLE / DUPLICATE LABORATORY CONTROL SAMPLE SUMMARY
Page 2 of 3
Client:WSP USA
Duplicate Lab Control Sample ALS Project ID:P2402916
ALS Sample ID:P240719-DLCS
Test Code:EPA TO-15 Modified Date Collected:NA
Instrument ID:Tekmar AUTOCAN/Agilent 5975Binert/6890N/MS13 Date Received:NA
Analyst:Marlow Cobian Date Analyzed:7/19/24
Sample Type:1.0 L Tedlar Bag Volume(s) Analyzed:0.125 Liter(s)
Test Notes:

Spike Amount ALS
CAS #Compound LCS / DLCS LCS DLCS Acceptance RPD RPD Data
µg/m³µg/m³µg/m³LCS DLCS Limits Limit Qualifier
141-78-6 Ethyl Acetate 398 372 385 93 97 56-120 4 25
110-54-3 n-Hexane 212 186 192 88 91 60-125 3 25
67-66-3 Chloroform 216 194 198 90 92 64-121 2 25
109-99-9 Tetrahydrofuran (THF)404 345 354 85 88 67-117 3 25
107-06-2 1,2-Dichloroethane 206 187 193 91 94 64-138 3 25
71-55-6 1,1,1-Trichloroethane 210 194 194 92 92 67-125 0 25
71-43-2 Benzene 206 184 185 89 90 73-128 1 25
56-23-5 Carbon Tetrachloride 210 196 195 93 93 71-134 0 25
110-82-7 Cyclohexane 428 398 396 93 93 71-118 0 25
78-87-5 1,2-Dichloropropane 214 192 191 90 89 68-121 1 25
75-27-4 Bromodichloromethane 218 201 203 92 93 70-125 1 25
79-01-6 Trichloroethene 214 186 186 87 87 68-124 0 25
123-91-1 1,4-Dioxane 214 193 196 90 92 76-127 2 25
142-82-5 n-Heptane 214 202 200 94 93 72-121 1 25
10061-01-5 cis-1,3-Dichloropropene 212 202 203 95 96 87-137 1 25
108-10-1 4-Methyl-2-pentanone 426 405 409 95 96 67-137 1 25
10061-02-6 trans-1,3-Dichloropropene 196 197 198 101 101 73-127 0 25
79-00-5 1,1,2-Trichloroethane 216 202 200 94 93 71-119 1 25
108-88-3 Toluene 214 192 196 90 92 64-121 2 25
591-78-6 2-Hexanone 426 418 430 98 101 70-136 3 25
Laboratory Control Sample percent recovery is verified and accepted based on the on-column result.
Reported results are shown in concentration units and as a result of the calculation, may vary slightly.

% Recovery
CTS of Asheville / 6252.16.2004.01
Client Sample ID:
Client Project ID:
Page 18 of 19
TO15SCAN1.XLS - 62 Compounds - PageNo.:P2402916_TO15_2407241713_SC.xls - DLCS
ALS ENVIRONMENTAL
LABORATORY CONTROL SAMPLE / DUPLICATE LABORATORY CONTROL SAMPLE SUMMARY
Page 3 of 3
Client:WSP USA
Duplicate Lab Control Sample ALS Project ID:P2402916
ALS Sample ID:P240719-DLCS
Test Code:EPA TO-15 Modified Date Collected:NA
Instrument ID:Tekmar AUTOCAN/Agilent 5975Binert/6890N/MS13 Date Received:NA
Analyst:Marlow Cobian Date Analyzed:7/19/24
Sample Type:1.0 L Tedlar Bag Volume(s) Analyzed:0.125 Liter(s)
Test Notes:

Spike Amount ALS
CAS #Compound LCS / DLCS LCS DLCS Acceptance RPD RPD Data
µg/m³µg/m³µg/m³LCS DLCS Limits Limit Qualifier
124-48-1 Dibromochloromethane 214 203 206 95 96 67-128 1 25
106-93-4 1,2-Dibromoethane 206 203 208 99 101 69-129 2 25
127-18-4 Tetrachloroethene 214 197 197 92 92 55-132 0 25
108-90-7 Chlorobenzene 218 196 200 90 92 63-124 2 25
100-41-4 Ethylbenzene 218 203 205 93 94 64-119 1 25
179601-23-1 m,p-Xylenes 432 394 399 91 92 64-121 1 25
75-25-2 Bromoform 218 216 217 99 100 63-132 1 25
100-42-5 Styrene 214 218 223 102 104 71-125 2 25
95-47-6 o-Xylene 216 198 202 92 94 66-122 2 25
79-34-5 1,1,2,2-Tetrachloroethane 216 200 204 93 94 71-128 1 25
98-82-8 Cumene 212 196 199 92 94 66-126 2 25
622-96-8 4-Ethyltoluene 218 204 209 94 96 67-128 2 25
108-67-8 1,3,5-Trimethylbenzene 218 201 205 92 94 66-125 2 25
95-63-6 1,2,4-Trimethylbenzene 212 202 207 95 98 67-130 3 25
100-44-7 Benzyl Chloride 430 413 425 96 99 58-151 3 25
541-73-1 1,3-Dichlorobenzene 214 203 206 95 96 57-135 1 25
106-46-7 1,4-Dichlorobenzene 214 203 207 95 97 56-129 2 25
95-50-1 1,2-Dichlorobenzene 212 202 207 95 98 57-138 3 25
120-82-1 1,2,4-Trichlorobenzene 440 455 485 103 110 50-137 7 25
91-20-3 Naphthalene 220 220 246 100 112 50-157 11 25
87-68-3 Hexachlorobutadiene 214 180 189 84 88 50-133 5 25
Laboratory Control Sample percent recovery is verified and accepted based on the on-column result.
Reported results are shown in concentration units and as a result of the calculation, may vary slightly.

Client Project ID:CTS of Asheville / 6252.16.2004.01
% Recovery
Client Sample ID:
Page 19 of 19
ALS Environmental
2655 Park Center Dr., Suite A
Simi Valley, CA 93065
T [phone]
alsglobal.com
LABORATORY REPORT
________________________________________________________________________________
September 16, 2024
Matthew Wallace
WSP USA
1308-C Patton Ave.
Asheville, NC 28806-2604
RE: CTS of Asheville / 6252.16.2004.01
Dear Matthew:
Enclosed are the results of the samples submitted to our laboratory on September 6, 2024. For your
reference, these analyses have been assigned our service request number P2403718.
All analyses were performed according to our laboratory’s NELAP and DoD-ELAP-approved quality
assurance program. The test results meet requirements of the current NELAP and DoD-ELAP standards,
where applicable, and except as noted in the laboratory case narrative provided. For a specific list of
NELAP and DoD-ELAP-accredited analytes, refer to the certifications section at www.alsglobal.com.
Results are intended to be considered in their entirety and apply only to the samples analyzed and
reported herein.
If you have any questions, please call me at [phone].
ALS | Environmental
Sarah Mock
Project Manager
Page 1 of 19
By Sarah Mock at 4:56 pm, Sep 16, 2024
ALS Environmental
2655 Park Center Dr., Suite A
Simi Valley, CA 93065
T [phone]
alsglobal.com

Client: WSP USA Service Request No: P2403718
Project: CTS of Asheville / 6252.16.2004.01
____________________________________________________________________________________
The samples were received intact under chain of custody on September 6, 2024 and were stored in
accordance with the analytical method requirements. Please refer to the sample acceptance check form
for additional information. The results reported herein are applicable only to the condition of the samples
at the time of sample receipt.

Volatile Organic Compound Analysis

The samples were analyzed for volatile organic compounds in accordance with EPA Method TO-15
from the Compendium of Methods for the Determination of Toxic Organic Compounds in Ambient
Air, Second Edition (EPA/625/R-96/010b), January, 1999. This procedure is described in laboratory
SOP VOA-TO15. The analytical system was comprised of a gas chromatograph/mass spectrometer
(GC/MS) interfaced to a whole-air preconcentrator. According to the method, the use of Tedlar bags is
considered a method modification. This method is included on the laboratory’s NELAP and DoD-ELAP
scope of accreditation. Any analytes flagged with an X are not included on the NELAP or DoD-ELAP
accreditation.
________________________________________________________________________________

The results of analyses are given in the attached laboratory report. All results are intended to be considered in their entirety, and ALS
Environmental (ALS) is not responsible for utilization of less than the complete report.

Use of ALS Environmental (ALS)’s Name. Client shall not use ALS’s name or trademark in any marketing or reporting materials, press
releases or in any other manner (“Materials”) whatsoever and shall not attribute to ALS any test result, tolerance or specification
derived from ALS’s data (“Attribution”) without ALS’s prior written consent, which may be withheld by ALS for any reason in its sole
discretion. To request ALS’s consent, Client shall provide copies of the proposed Materials or Attribution and describe in writing
Client’s proposed use of such Materials or Attribution. If ALS has not provided written approval of the Materials or Attribution within
ten (10) days of receipt from Client, Client’s request to use ALS’s name or trademark in any Materials or Attribution shall be deemed
denied. ALS may, in its discretion, reasonably charge Client for its time in reviewing Materials or Attribution requests. Client
acknowledges and agrees that the unauthorized use of ALS’s name or trademark may cause ALS to incur irreparable harm for which
the recovery of money damages will be inadequate. Accordingly, Client acknowledges and agrees that a violation shall justify
preliminary injunctive relief. For questions contact the laboratory.

Page 2 of 19
ALS Environmental
2655 Park Center Dr., Suite A
Simi Valley, CA 93065
T [phone]
alsglobal.com

CERTIFICATIONS, ACCREDITATIONS, AND REGISTRATIONS

Agency Web Site Number
Alaska DEC https://dec.alaska.gov/spar/csp/lab-approval/list-of-approved-labs 17-019
Arizona DHS http://www.azdhs.gov/preparedness/state-laboratory/lab-licensure-
certification/index.php#laboratory-licensure-home AZ0694
Florida DOH
(NELAP)
http://www.floridahealth.gov/licensing-and-regulation/environmental-
laboratories/index.html E871020
Louisiana DEQ
(NELAP)
https://internet.deq.louisiana.gov/portal/divisions/lelap/accredited-
laboratories 05071
Maine DHHS health/dwp/professionals/labCert.shtm CA01627
Minnesota DOH http://www.health.state.mn.us/accreditation 006-999-456
New Jersey DEP
(NELAP) https://dep.nj.gov/dsr/oqa/certified-laboratories/ CA009
(NELAP) http://www.wadsworth.org/labcert/elap/elap.html 11221
Oklahoma DEQ labaccreditation.deq.ok.gov/labaccreditation/ 2207
Oregon PHD
(NELAP)
http://www.oregon.gov/oha/ph/LaboratoryServices/EnvironmentalLaboratoryA
ccreditation/Pages/index.aspx 4068
Pennsylvania DEP Accreditation-Program.aspx (Registration)
PJLA
(DoD ELAP) http://www.pjlabs.com/search-accredited-labs 65818
(Testing)
Texas CEQ
(NELAP) http://www.tceq.texas.gov/agency/qa/env_lab_accreditation.html T104704413
(NELAP) https://uphl.utah.gov/certifications/environmental-laboratory-certification/ CA01627
Washington DOE http://www.ecy.wa.gov/programs/eap/labs/lab-accreditation.html C946
A complete listing of specific NELAP and DoD-
www.alsglobal.com, or at the accreditation body’s website.

Each of

Page 3 of 19
P2403718_Detail Summary_2409160750_NU.xls - DETAIL SUMMARY
Client:WSP USA Service Request:P2403718
Project ID:CTS of Asheville / 6252.16.2004.01
Date Received:9/6/2024
Time Received:09:40
Client Sample ID Lab Code Matrix
INF-01 P2403718-001 Air 9/5/2024 11:20 X
EFF-01 P2403718-002 Air 9/5/2024 11:15 X
ALS ENVIRONMENTAL
TO
-
1
5

M
o
d
i
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i
e
d

-

V
O
C

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s
Page 4 of 19
Page 5 of 19
ALS Environmental
Sample Acceptance Check Form
Client:WSP USA Work order:
Project:CTS of Asheville / 6252.16.2004.01
Sample(s) received on:9/6/24 Date opened:9/6/24 by:
Note: This form is used for all samples received by ALS. The use of this form for custody seals is strictly meant to indicate presence/absence and not as an indication of
compliance or nonconformity. Thermal preservation and pH will only be evaluated either at the request of the client and/or as required by the method/SOP.
Yes No N/A
1 Were sample containers properly marked with client sample ID?x o o
2 Did sample containers arrive in good condition?x o o
3 Were chain-of-custody papers used and filled out?x o o
4 Did sample container labels and/or tags agree with custody papers?x o o
5 Was sample volume received adequate for analysis?x o o
6 Are samples within specified holding times?x o o
7 Was proper temperature (thermal preservation) of cooler at receipt adhered to?o o x
8 Were custody seals on outside of cooler/Box/Container?o x o
Location of seal(s)?Sealing Lid?o o x
Were signature and date included?o o x
Were seals intact?o o x
9 o o x
Is there a client indication that the submitted samples are pH preserved?o o x
Were VOA vials checked for presence/absence of air bubbles?o o x
o o x
10 Tubes: Are the tubes capped and intact?o o x
11 Badges: Are the badges properly capped and intact?o o x
Are dual bed badges separated and individually capped and intact?o o x
12 Lab Notification: Analyst and PM were alerted of Short HT or RUSH samples?o o x
13 Client Notification: Client has been notified regarding HT exceedances and/or other CoC discrepancies?o o x
Lab Sample ID Container Required Received Adjusted VOA Headspace
Description pH *pH pH (Presence/Absence)Comments
1.0 L Tedlar Bag
1.0 L Tedlar Bag
Sulfur (pH>4)
Explain any discrepancies: (include lab sample ID numbers):
Do containers have appropriate preservation, according to method/SOP or Client specified information?
Does the client/method/SOP require that the analyst check the sample pH and if necessary alter it?
Receipt / Preservation
P2403718-001.01
P2403718-002.01
ADAVID
P2403718
P2403718_WSP USA_CTS of Asheville _ 6252.16.2004.01 - Page 1 of 1 9/6/24 9:53 AMPage 6 of 19
TO15SCAN1.XLS - 62 Compounds - PageNo.:P2403718_TO15_2409111212_SC.xls - Sample
ALS ENVIRONMENTAL
RESULTS OF ANALYSIS
Page 1 of 3
Client:WSP USA
INF-01 ALS Project ID:P2403718
ALS Sample ID:P2403718-001
Test Code:EPA TO-15 Modified Date Collected:9/5/24
Instrument ID:Tekmar AUTOCAN/Agilent 5975Binert/6890N/MS13 Date Received:9/6/24
Analyst:Marlow Cobian Date Analyzed:9/6/24
Sample Type:1.0 L Tedlar Bag Volume(s) Analyzed:0.050 Liter(s)
Test Notes:
CAS #Compound MRL MRL Data
µg/m³ppbV Qualifier
115-07-1 Propene ND 11 ND 6.2
75-71-8 Dichlorodifluoromethane (CFC 12)ND 10 ND 2.1
74-87-3 Chloromethane ND 11 ND 5.2
76-14-2 ND 11 ND 1.6
75-01-4 Vinyl Chloride 27 11 11 4.1
106-99-0 1,3-Butadiene ND 11 ND 4.8
74-83-9 Bromomethane ND 10 ND 2.6
75-00-3 Chloroethane ND 11 ND 4.2
67-64-1 Acetone ND 100 ND 43
75-69-4 Trichlorofluoromethane (CFC 11)ND 10 ND 1.8
67-63-0 2-Propanol (Isopropyl Alcohol)ND 20 ND 8.1
75-35-4 1,1-Dichloroethene 37 9.0 9.3 2.3
75-09-2 Methylene Chloride ND 9.2 ND 2.6
76-13-1 Trichlorotrifluoroethane (CFC 113)13 9.0 1.7 1.2
75-15-0 Carbon Disulfide ND 21 ND 6.7
156-60-5 trans-1,2-Dichloroethene ND 11 ND 2.7
75-34-3 1,1-Dichloroethane ND 10 ND 2.6
1634-04-4 Methyl tert-Butyl Ether ND 11 ND 3.0
108-05-4 Vinyl Acetate ND 110 ND 31
78-93-3 2-Butanone (MEK)ND 20 ND 6.9
156-59-2 cis-1,2-Dichloroethene 1,400 10 340 2.6
ND = Compound was analyzed for, but not detected above the laboratory reporting limit.
MRL = Method Reporting Limit - The minimum quantity of a target analyte that can be confidently determined by the referenced method.
Client Sample ID:
Client Project ID:CTS of Asheville / 6252.16.2004.01
ppbV
ResultResult
µg/m³
Page 7 of 19
TO15SCAN1.XLS - 62 Compounds - PageNo.:P2403718_TO15_2409111212_SC.xls - Sample
ALS ENVIRONMENTAL
RESULTS OF ANALYSIS
Page 2 of 3
Client:WSP USA
INF-01 ALS Project ID:P2403718
ALS Sample ID:P2403718-001
Test Code:EPA TO-15 Modified Date Collected:9/5/24
Instrument ID:Tekmar AUTOCAN/Agilent 5975Binert/6890N/MS13 Date Received:9/6/24
Analyst:Marlow Cobian Date Analyzed:9/6/24
Sample Type:1.0 L Tedlar Bag Volume(s) Analyzed:0.050 Liter(s)
Test Notes:

CAS #Compound MRL MRL Data
µg/m³ ppbV Qualifier
141-78-6 Ethyl Acetate ND 40 ND 11
110-54-3 n-Hexane ND 11 ND 3.0
67-66-3 Chloroform ND 11 ND 2.2
109-99-9 Tetrahydrofuran (THF)ND 20 ND 6.8
107-06-2 1,2-Dichloroethane ND 10 ND 2.5
71-55-6 1,1,1-Trichloroethane 28 10 5.1 1.9
71-43-2 Benzene ND 10 ND 3.2
56-23-5 Carbon Tetrachloride ND 10 ND 1.7
110-82-7 Cyclohexane ND 22 ND 6.4
78-87-5 1,2-Dichloropropane ND 11 ND 2.3
75-27-4 Bromodichloromethane ND 11 ND 1.6
79-01-6 Trichloroethene 1,200 10 220 1.9
123-91-1 1,4-Dioxane ND 10 ND 2.9
142-82-5 n-Heptane ND 11 ND 2.6
10061-01-5 cis-1,3-Dichloropropene ND 11 ND 2.3
108-10-1 4-Methyl-2-pentanone ND 21 ND 5.1
10061-02-6 trans-1,3-Dichloropropene ND 9.8 ND 2.2
79-00-5 1,1,2-Trichloroethane ND 11 ND 2.0
108-88-3 Toluene ND 11 ND 2.9
591-78-6 2-Hexanone ND 20 ND 5.0
ND = Compound was analyzed for, but not detected above the laboratory reporting limit.
MRL = Method Reporting Limit - The minimum quantity of a target analyte that can be confidently determined by the referenced method.

µg/m³
Client Sample ID:
Client Project ID:CTS of Asheville / 6252.16.2004.01
ppbV
Result Result
Page 8 of 19
TO15SCAN1.XLS - 62 Compounds - PageNo.:P2403718_TO15_2409111212_SC.xls - Sample
ALS ENVIRONMENTAL
RESULTS OF ANALYSIS
Page 3 of 3
Client:WSP USA
INF-01 ALS Project ID:P2403718
ALS Sample ID:P2403718-001
Test Code:EPA TO-15 Modified Date Collected:9/5/24
Instrument ID:Tekmar AUTOCAN/Agilent 5975Binert/6890N/MS13 Date Received:9/6/24
Analyst:Marlow Cobian Date Analyzed:9/6/24
Sample Type:1.0 L Tedlar Bag Volume(s) Analyzed:0.050 Liter(s)
Test Notes:

MRL MRL Data
CAS #Compound µg/m³ ppbV Qualifier
124-48-1 Dibromochloromethane ND 10 ND 1.2
106-93-4 1,2-Dibromoethane ND 10 ND 1.4
127-18-4 Tetrachloroethene ND 11 ND 1.6
108-90-7 Chlorobenzene ND 11 ND 2.3
100-41-4 Ethylbenzene ND 11 ND 2.5
179601-23-1 m,p-Xylenes ND 21 ND 4.9
75-25-2 Bromoform ND 11 ND 1.1
100-42-5 Styrene ND 11 ND 2.5
95-47-6 o-Xylene ND 11 ND 2.5
79-34-5 1,1,2,2-Tetrachloroethane ND 11 ND 1.6
98-82-8 Cumene ND 10 ND 2.1
622-96-8 4-Ethyltoluene ND 10 ND 2.1
108-67-8 1,3,5-Trimethylbenzene ND 11 ND 2.2
95-63-6 1,2,4-Trimethylbenzene ND 10 ND 2.1
100-44-7 Benzyl Chloride ND 41 ND 8.0
541-73-1 1,3-Dichlorobenzene ND 10 ND 1.7
106-46-7 1,4-Dichlorobenzene ND 10 ND 1.7
95-50-1 1,2-Dichlorobenzene ND 10 ND 1.7
120-82-1 1,2,4-Trichlorobenzene ND 21 ND 2.9
91-20-3 Naphthalene ND 10 ND 1.9
87-68-3 Hexachlorobutadiene ND 10 ND 0.96
ND = Compound was analyzed for, but not detected above the laboratory reporting limit.
MRL = Method Reporting Limit - The minimum quantity of a target analyte that can be confidently determined by the referenced method.

Client Sample ID:
Client Project ID:CTS of Asheville / 6252.16.2004.01
µg/m³
Result
ppbV
Result
Page 9 of 19
TO15SCAN1.XLS - 62 Compounds - PageNo.:P2403718_TO15_2409111212_SC.xls - Sample (2)
ALS ENVIRONMENTAL

RESULTS OF ANALYSIS
Page 1 of 3
Client:WSP USA
EFF-01 ALS Project ID:P2403718
ALS Sample ID:P2403718-002
Test Code:EPA TO-15 Modified Date Collected:9/5/24
Instrument ID:Tekmar AUTOCAN/Agilent 5975Binert/6890N/MS13 Date Received:9/6/24
Analyst:Marlow Cobian Date Analyzed:9/6/24
Sample Type:1.0 L Tedlar Bag Volume(s) Analyzed:0.10 Liter(s)
Test Notes:

CAS #Compound MRL MRL Data
µg/m³ ppbV Qualifier
115-07-1 Propene ND 5.3 ND 3.1
75-71-8 Dichlorodifluoromethane (CFC 12)ND 5.2 ND 1.1
74-87-3 Chloromethane ND 5.4 ND 2.6
76-14-2 ND 5.5 ND 0.79
75-01-4 Vinyl Chloride 32 5.3 12 2.1
106-99-0 1,3-Butadiene ND 5.3 ND 2.4
74-83-9 Bromomethane ND 5.1 ND 1.3
75-00-3 Chloroethane ND 5.5 ND 2.1
67-64-1 Acetone ND 51 ND 22
75-69-4 Trichlorofluoromethane (CFC 11)ND 5.1 ND 0.91
67-63-0 2-Propanol (Isopropyl Alcohol)ND 9.9 ND 4.0
75-35-4 1,1-Dichloroethene 51 4.5 13 1.1
75-09-2 Methylene Chloride ND 4.6 ND 1.3
76-13-1 Trichlorotrifluoroethane (CFC 113)ND 4.5 ND 0.59
75-15-0 Carbon Disulfide ND 10 ND 3.3
156-60-5 trans-1,2-Dichloroethene ND 5.3 ND 1.3
75-34-3 1,1-Dichloroethane ND 5.2 ND 1.3
1634-04-4 Methyl tert-Butyl Ether ND 5.4 ND 1.5
108-05-4 Vinyl Acetate ND 54 ND 15
78-93-3 2-Butanone (MEK)ND 10 ND 3.5
156-59-2 cis-1,2-Dichloroethene 570 5.2 140 1.3
ND = Compound was analyzed for, but not detected above the laboratory reporting limit.
MRL = Method Reporting Limit - The minimum quantity of a target analyte that can be confidently determined by the referenced method.

Result
CTS of Asheville / 6252.16.2004.01
ppbV
Result
µg/m³
Client Sample ID:
Client Project ID:
Page 10 of 19
TO15SCAN1.XLS - 62 Compounds - PageNo.:P2403718_TO15_2409111212_SC.xls - Sample (2)
ALS ENVIRONMENTAL
RESULTS OF ANALYSIS
Page 2 of 3
Client:WSP USA
EFF-01 ALS Project ID:P2403718
ALS Sample ID:P2403718-002
Test Code:EPA TO-15 Modified Date Collected:9/5/24
Instrument ID:Tekmar AUTOCAN/Agilent 5975Binert/6890N/MS13 Date Received:9/6/24
Analyst:Marlow Cobian Date Analyzed:9/6/24
Sample Type:1.0 L Tedlar Bag Volume(s) Analyzed:0.10 Liter(s)
Test Notes:

CAS #Compound MRL MRL Data
µg/m³ ppbV Qualifier
141-78-6 Ethyl Acetate ND 20 ND 5.6
110-54-3 n-Hexane 6.9 5.3 1.9 1.5
67-66-3 Chloroform ND 5.4 ND 1.1
109-99-9 Tetrahydrofuran (THF)ND 10 ND 3.4
107-06-2 1,2-Dichloroethane ND 5.1 ND 1.3
71-55-6 1,1,1-Trichloroethane ND 5.2 ND 0.95
71-43-2 Benzene 6.9 5.1 2.2 1.6
56-23-5 Carbon Tetrachloride ND 5.2 ND 0.83
110-82-7 Cyclohexane ND 11 ND 3.2
78-87-5 1,2-Dichloropropane ND 5.4 ND 1.2
75-27-4 Bromodichloromethane ND 5.3 ND 0.79
79-01-6 Trichloroethene 22 5.2 4.1 0.97
123-91-1 1,4-Dioxane ND 5.2 ND 1.4
142-82-5 n-Heptane ND 5.3 ND 1.3
10061-01-5 cis-1,3-Dichloropropene ND 5.3 ND 1.2
108-10-1 4-Methyl-2-pentanone ND 11 ND 2.6
10061-02-6 trans-1,3-Dichloropropene ND 4.9 ND 1.1
79-00-5 1,1,2-Trichloroethane ND 5.5 ND 1.0
108-88-3 Toluene ND 5.4 ND 1.4
591-78-6 2-Hexanone ND 10 ND 2.5
ND = Compound was analyzed for, but not detected above the laboratory reporting limit.
MRL = Method Reporting Limit - The minimum quantity of a target analyte that can be confidently determined by the referenced method.

µg/m³ppbV
Result Result
CTS of Asheville / 6252.16.2004.01
Client Sample ID:
Client Project ID:
Page 11 of 19
TO15SCAN1.XLS - 62 Compounds - PageNo.:P2403718_TO15_2409111212_SC.xls - Sample (2)
ALS ENVIRONMENTAL
RESULTS OF ANALYSIS
Page 3 of 3
Client:WSP USA
EFF-01 ALS Project ID:P2403718
ALS Sample ID:P2403718-002
Test Code:EPA TO-15 Modified Date Collected:9/5/24
Instrument ID:Tekmar AUTOCAN/Agilent 5975Binert/6890N/MS13 Date Received:9/6/24
Analyst:Marlow Cobian Date Analyzed:9/6/24
Sample Type:1.0 L Tedlar Bag Volume(s) Analyzed:0.10 Liter(s)
Test Notes:

MRL MRL Data
CAS #Compound µg/m³ ppbV Qualifier
124-48-1 Dibromochloromethane ND 5.1 ND 0.60
106-93-4 1,2-Dibromoethane ND 5.2 ND 0.68
127-18-4 Tetrachloroethene ND 5.4 ND 0.80
108-90-7 Chlorobenzene ND 5.4 ND 1.2
100-41-4 Ethylbenzene ND 5.5 ND 1.3
179601-23-1 m,p-Xylenes ND 11 ND 2.5
75-25-2 Bromoform ND 5.5 ND 0.53
100-42-5 Styrene ND 5.3 ND 1.2
95-47-6 o-Xylene ND 5.4 ND 1.2
79-34-5 1,1,2,2-Tetrachloroethane ND 5.4 ND 0.79
98-82-8 Cumene ND 5.2 ND 1.1
622-96-8 4-Ethyltoluene ND 5.2 ND 1.1
108-67-8 1,3,5-Trimethylbenzene ND 5.4 ND 1.1
95-63-6 1,2,4-Trimethylbenzene ND 5.2 ND 1.1
100-44-7 Benzyl Chloride ND 21 ND 4.0
541-73-1 1,3-Dichlorobenzene ND 5.2 ND 0.87
106-46-7 1,4-Dichlorobenzene ND 5.2 ND 0.87
95-50-1 1,2-Dichlorobenzene ND 5.2 ND 0.87
120-82-1 1,2,4-Trichlorobenzene ND 11 ND 1.4
91-20-3 Naphthalene ND 5.1 ND 0.97
87-68-3 Hexachlorobutadiene ND 5.1 ND 0.48
ND = Compound was analyzed for, but not detected above the laboratory reporting limit.
MRL = Method Reporting Limit - The minimum quantity of a target analyte that can be confidently determined by the referenced method.

Client Sample ID:
Client Project ID:CTS of Asheville / 6252.16.2004.01
ppbV
Result
µg/m³
Result
Page 12 of 19
TO15SCAN1.XLS - 62 Compounds - PageNo.:P2403718_TO15_2409111212_SC.xls - MBlank
ALS ENVIRONMENTAL

RESULTS OF ANALYSIS
Page 1 of 3
Client:WSP USA
Method Blank ALS Project ID:P2403718
ALS Sample ID:P240906-MB

Test Code:EPA TO-15 Modified Date Collected:NA
Instrument ID:Tekmar AUTOCAN/Agilent 5975Binert/6890N/MS13 Date Received:NA
Analyst:Marlow Cobian Date Analyzed:9/6/24
Sample Type:1.0 L Tedlar Bag Volume(s) Analyzed:1.00 Liter(s)
Test Notes:

CAS #Compound MRL MRL Data
µg/m³ ppbV Qualifier
115-07-1 Propene ND 0.53 ND 0.31
75-71-8 Dichlorodifluoromethane (CFC 12)ND 0.52 ND 0.11
74-87-3 Chloromethane ND 0.54 ND 0.26
76-14-2 ND 0.55 ND 0.079
75-01-4 Vinyl Chloride ND 0.53 ND 0.21
106-99-0 1,3-Butadiene ND 0.53 ND 0.24
74-83-9 Bromomethane ND 0.51 ND 0.13
75-00-3 Chloroethane ND 0.55 ND 0.21
67-64-1 Acetone ND 5.1 ND 2.2
75-69-4 Trichlorofluoromethane (CFC 11)ND 0.51 ND 0.091
67-63-0 2-Propanol (Isopropyl Alcohol)ND 0.99 ND 0.40
75-35-4 1,1-Dichloroethene ND 0.45 ND 0.11
75-09-2 Methylene Chloride ND 0.46 ND 0.13
76-13-1 Trichlorotrifluoroethane (CFC 113)ND 0.45 ND 0.059
75-15-0 Carbon Disulfide ND 1.0 ND 0.33
156-60-5 trans-1,2-Dichloroethene ND 0.53 ND 0.13
75-34-3 1,1-Dichloroethane ND 0.52 ND 0.13
1634-04-4 Methyl tert-Butyl Ether ND 0.54 ND 0.15
108-05-4 Vinyl Acetate ND 5.4 ND 1.5
78-93-3 2-Butanone (MEK)ND 1.0 ND 0.35
156-59-2 cis-1,2-Dichloroethene ND 0.52 ND 0.13
ND = Compound was analyzed for, but not detected above the laboratory reporting limit.
MRL = Method Reporting Limit - The minimum quantity of a target analyte that can be confidently determined by the referenced method.

Result
ppbVµg/m³
Client Sample ID:
Client Project ID:CTS of Asheville / 6252.16.2004.01
Result
Page 13 of 19
TO15SCAN1.XLS - 62 Compounds - PageNo.:P2403718_TO15_2409111212_SC.xls - MBlank
ALS ENVIRONMENTAL
RESULTS OF ANALYSIS
Page 2 of 3
Client:WSP USA
Method Blank ALS Project ID:P2403718
ALS Sample ID:P240906-MB
Test Code:EPA TO-15 Modified Date Collected:NA
Instrument ID:Tekmar AUTOCAN/Agilent 5975Binert/6890N/MS13 Date Received:NA
Analyst:Marlow Cobian Date Analyzed:9/6/24
Sample Type:1.0 L Tedlar Bag Volume(s) Analyzed:1.00 Liter(s)
Test Notes:

CAS #Compound MRL MRL Data
µg/m³ ppbV Qualifier
141-78-6 Ethyl Acetate ND 2.0 ND 0.56
110-54-3 n-Hexane ND 0.53 ND 0.15
67-66-3 Chloroform ND 0.54 ND 0.11
109-99-9 Tetrahydrofuran (THF)ND 1.0 ND 0.34
107-06-2 1,2-Dichloroethane ND 0.51 ND 0.13
71-55-6 1,1,1-Trichloroethane ND 0.52 ND 0.095
71-43-2 Benzene ND 0.51 ND 0.16
56-23-5 Carbon Tetrachloride ND 0.52 ND 0.083
110-82-7 Cyclohexane ND 1.1 ND 0.32
78-87-5 1,2-Dichloropropane ND 0.54 ND 0.12
75-27-4 Bromodichloromethane ND 0.53 ND 0.079
79-01-6 Trichloroethene ND 0.52 ND 0.097
123-91-1 1,4-Dioxane ND 0.52 ND 0.14
142-82-5 n-Heptane ND 0.53 ND 0.13
10061-01-5 cis-1,3-Dichloropropene ND 0.53 ND 0.12
108-10-1 4-Methyl-2-pentanone ND 1.1 ND 0.26
10061-02-6 trans-1,3-Dichloropropene ND 0.49 ND 0.11
79-00-5 1,1,2-Trichloroethane ND 0.55 ND 0.10
108-88-3 Toluene ND 0.54 ND 0.14
591-78-6 2-Hexanone ND 1.0 ND 0.25
ND = Compound was analyzed for, but not detected above the laboratory reporting limit.
MRL = Method Reporting Limit - The minimum quantity of a target analyte that can be confidently determined by the referenced method.

Result
ppbV
Result
µg/m³
Client Sample ID:
Client Project ID:CTS of Asheville / 6252.16.2004.01
Page 14 of 19
TO15SCAN1.XLS - 62 Compounds - PageNo.:P2403718_TO15_2409111212_SC.xls - MBlank
ALS ENVIRONMENTAL
RESULTS OF ANALYSIS
Page 3 of 3
Client:WSP USA
Method Blank ALS Project ID:P2403718
ALS Sample ID:P240906-MB
Test Code:EPA TO-15 Modified Date Collected:NA
Instrument ID:Tekmar AUTOCAN/Agilent 5975Binert/6890N/MS13 Date Received:NA
Analyst:Marlow Cobian Date Analyzed:9/6/24
Sample Type:1.0 L Tedlar Bag Volume(s) Analyzed:1.00 Liter(s)
Test Notes:

MRL MRL Data
CAS #Compound µg/m³ ppbV Qualifier
124-48-1 Dibromochloromethane ND 0.51 ND 0.060
106-93-4 1,2-Dibromoethane ND 0.52 ND 0.068
127-18-4 Tetrachloroethene ND 0.54 ND 0.080
108-90-7 Chlorobenzene ND 0.54 ND 0.12
100-41-4 Ethylbenzene ND 0.55 ND 0.13
179601-23-1 m,p-Xylenes ND 1.1 ND 0.25
75-25-2 Bromoform ND 0.55 ND 0.053
100-42-5 Styrene ND 0.53 ND 0.12
95-47-6 o-Xylene ND 0.54 ND 0.12
79-34-5 1,1,2,2-Tetrachloroethane ND 0.54 ND 0.079
98-82-8 Cumene ND 0.52 ND 0.11
622-96-8 4-Ethyltoluene ND 0.52 ND 0.11
108-67-8 1,3,5-Trimethylbenzene ND 0.54 ND 0.11
95-63-6 1,2,4-Trimethylbenzene ND 0.52 ND 0.11
100-44-7 Benzyl Chloride ND 2.1 ND 0.40
541-73-1 1,3-Dichlorobenzene ND 0.52 ND 0.087
106-46-7 1,4-Dichlorobenzene ND 0.52 ND 0.087
95-50-1 1,2-Dichlorobenzene ND 0.52 ND 0.087
120-82-1 1,2,4-Trichlorobenzene ND 1.1 ND 0.14
91-20-3 Naphthalene ND 0.51 ND 0.097
87-68-3 Hexachlorobutadiene ND 0.51 ND 0.048
ND = Compound was analyzed for, but not detected above the laboratory reporting limit.
MRL = Method Reporting Limit - The minimum quantity of a target analyte that can be confidently determined by the referenced method.

CTS of Asheville / 6252.16.2004.01
Result
Client Sample ID:
Client Project ID:
Result
ppbVµg/m³
Page 15 of 19
TO15SCAN1.XLS - 62 Compounds - PageNo.:P2403718_TO15_2409111212_SC.xls - Surrogates
ALS ENVIRONMENTAL

SURROGATE SPIKE RECOVERY RESULTS
Page 1 of 1
Client:WSP USA
ALS Project ID:P2403718

Test Code:EPA TO-15 Modified
Instrument ID:Tekmar AUTOCAN/Agilent 5975Binert/6890N/MS13 Date(s) Collected:9/5/24
Analyst:Marlow Cobian Date(s) Received:9/6/24
Sample Type:1.0 L Tedlar Bag(s)Date(s) Analyzed:9/6/24
Test Notes:

Client Sample ID ALS Sample ID Acceptance Data
Limits Qualifier
P240906-MB 70-130
P240906-LCS 70-130
P240906-DLCS 70-130
P2403718-001 70-130
P2403718-002 70-130
Surrogate percent recovery is verified and accepted based on the on-column result.
Reported results are shown in concentration units and as a result of the calculation, may vary slightly from the on-column percent recovery.
96Duplicate Lab Control Sample
Client Project ID:
Toluene-d8
119107
96 103
104 114
119
CTS of Asheville / 6252.16.2004.01
93
Bromofluorobenzene1,2-Dichloroethane-d4
PercentPercent
Page 16 of 19
TO15SCAN1.XLS - 62 Compounds - PageNo.:P2403718_TO15_2409111212_SC.xls - DLCS
ALS ENVIRONMENTAL
LABORATORY CONTROL SAMPLE / DUPLICATE LABORATORY CONTROL SAMPLE SUMMARY
Page 1 of 3
Client:WSP USA
Duplicate Lab Control Sample ALS Project ID:P2403718
ALS Sample ID:P240906-DLCS
Test Code:EPA TO-15 Modified Date Collected:NA
Instrument ID:Tekmar AUTOCAN/Agilent 5975Binert/6890N/MS13 Date Received:NA
Analyst:Marlow Cobian Date Analyzed:9/6/24
Sample Type:1.0 L Tedlar Bag Volume(s) Analyzed:0.125 Liter(s)
Test Notes:
ALS
CAS #Compound LCS / DLCS LCS DLCS Acceptance RPD RPD Data
µg/m³µg/m³µg/m³LCS DLCS Limits Limit Qualifier
115-07-1 Propene 212 156 159 74 75 50-133 1 25
75-71-8 Dichlorodifluoromethane (CFC 12)204 175 183 86 90 66-122 5 25
74-87-3 Chloromethane 208 157 169 75 81 56-131 8 25
76-14-2 208 205 223 99 107 63-120 8 25
75-01-4 Vinyl Chloride 212 181 190 85 90 57-129 6 25
106-99-0 1,3-Butadiene 212 171 184 81 87 62-132 7 25
74-83-9 Bromomethane 210 183 189 87 90 72-120 3 25
75-00-3 Chloroethane 212 176 181 83 85 67-123 2 25
67-64-1 Acetone 1,060 807 836 76 79 61-120 4 25
75-69-4 Trichlorofluoromethane (CFC 11)210 185 191 88 91 65-122 3 25
67-63-0 2-Propanol (Isopropyl Alcohol)418 330 342 79 82 59-132 4 25
75-35-4 1,1-Dichloroethene 208 189 194 91 93 75-120 2 25
75-09-2 Methylene Chloride 208 168 173 81 83 71-123 2 25
76-13-1 Trichlorotrifluoroethane (CFC 113)210 199 206 95 98 65-121 3 25
75-15-0 Carbon Disulfide 430 322 331 75 77 69-115 3 25
156-60-5 trans-1,2-Dichloroethene 218 183 190 84 87 67-123 4 25
75-34-3 1,1-Dichloroethane 216 175 180 81 83 66-120 2 25
1634-04-4 Methyl tert-Butyl Ether 216 165 177 76 82 65-124 8 25
108-05-4 Vinyl Acetate 1,090 1030 1060 94 97 76-147 3 25
78-93-3 2-Butanone (MEK)414 360 376 87 91 70-125 4 25
156-59-2 cis-1,2-Dichloroethene 216 178 184 82 85 64-120 4 25
Laboratory Control Sample percent recovery is verified and accepted based on the on-column result.
Reported results are shown in concentration units and as a result of the calculation, may vary slightly.
CTS of Asheville / 6252.16.2004.01
Client Sample ID:
Client Project ID:
% Recovery
Page 17 of 19
TO15SCAN1.XLS - 62 Compounds - PageNo.:P2403718_TO15_2409111212_SC.xls - DLCS
ALS ENVIRONMENTAL
LABORATORY CONTROL SAMPLE / DUPLICATE LABORATORY CONTROL SAMPLE SUMMARY
Page 2 of 3
Client:WSP USA
Duplicate Lab Control Sample ALS Project ID:P2403718
ALS Sample ID:P240906-DLCS
Test Code:EPA TO-15 Modified Date Collected:NA
Instrument ID:Tekmar AUTOCAN/Agilent 5975Binert/6890N/MS13 Date Received:NA
Analyst:Marlow Cobian Date Analyzed:9/6/24
Sample Type:1.0 L Tedlar Bag Volume(s) Analyzed:0.125 Liter(s)
Test Notes:
Spike Amount ALS
CAS #Compound LCS / DLCS LCS DLCS Acceptance RPD RPD Data
µg/m³µg/m³µg/m³LCS DLCS Limits Limit Qualifier
141-78-6 Ethyl Acetate 398 355 365 89 92 56-120 3 25
110-54-3 n-Hexane 212 160 164 75 77 60-125 3 25
67-66-3 Chloroform 216 186 192 86 89 64-121 3 25
109-99-9 Tetrahydrofuran (THF)404 312 326 77 81 67-117 5 25
107-06-2 1,2-Dichloroethane 206 178 184 86 89 64-138 3 25
71-55-6 1,1,1-Trichloroethane 210 187 191 89 91 67-125 2 25
71-43-2 Benzene 206 172 176 83 85 73-128 2 25
56-23-5 Carbon Tetrachloride 210 192 196 91 93 71-134 2 25
110-82-7 Cyclohexane 428 363 371 85 87 71-118 2 25
78-87-5 1,2-Dichloropropane 214 173 179 81 84 68-121 4 25
75-27-4 Bromodichloromethane 218 191 196 88 90 70-125 2 25
79-01-6 Trichloroethene 214 193 197 90 92 68-124 2 25
123-91-1 1,4-Dioxane 214 196 202 92 94 76-127 2 25
142-82-5 n-Heptane 214 171 174 80 81 72-121 1 25
10061-01-5 cis-1,3-Dichloropropene 212 185 191 87 90 87-137 3 25
108-10-1 4-Methyl-2-pentanone 426 357 368 84 86 67-137 2 25
10061-02-6 trans-1,3-Dichloropropene 196 190 195 97 99 73-127 2 25
79-00-5 1,1,2-Trichloroethane 216 189 193 88 89 71-119 1 25
108-88-3 Toluene 214 191 200 89 93 64-121 4 25
591-78-6 2-Hexanone 426 390 411 92 96 70-136 4 25
Laboratory Control Sample percent recovery is verified and accepted based on the on-column result.
Reported results are shown in concentration units and as a result of the calculation, may vary slightly.
CTS of Asheville / 6252.16.2004.01
Client Sample ID:
Client Project ID:
% Recovery
Page 18 of 19
TO15SCAN1.XLS - 62 Compounds - PageNo.:P2403718_TO15_2409111212_SC.xls - DLCS
ALS ENVIRONMENTAL
LABORATORY CONTROL SAMPLE / DUPLICATE LABORATORY CONTROL SAMPLE SUMMARY
Page 3 of 3
Client:WSP USA
Duplicate Lab Control Sample ALS Project ID:P2403718
ALS Sample ID:P240906-DLCS
Test Code:EPA TO-15 Modified Date Collected:NA
Instrument ID:Tekmar AUTOCAN/Agilent 5975Binert/6890N/MS13 Date Received:NA
Analyst:Marlow Cobian Date Analyzed:9/6/24
Sample Type:1.0 L Tedlar Bag Volume(s) Analyzed:0.125 Liter(s)
Test Notes:
Spike Amount ALS
CAS #Compound LCS / DLCS LCS DLCS Acceptance RPD RPD Data
µg/m³µg/m³µg/m³LCS DLCS Limits Limit Qualifier
124-48-1 Dibromochloromethane 214 208 218 97 102 67-128 5 25
106-93-4 1,2-Dibromoethane 206 202 209 98 101 69-129 3 25
127-18-4 Tetrachloroethene 214 209 217 98 101 55-132 3 25
108-90-7 Chlorobenzene 218 199 209 91 96 63-124 5 25
100-41-4 Ethylbenzene 218 195 204 89 94 64-119 5 25
179601-23-1 m,p-Xylenes 432 386 404 89 94 64-121 5 25
75-25-2 Bromoform 218 234 246 107 113 63-132 5 25
100-42-5 Styrene 214 205 215 96 100 71-125 4 25
95-47-6 o-Xylene 216 190 198 88 92 66-122 4 25
79-34-5 1,1,2,2-Tetrachloroethane 216 190 198 88 92 71-128 4 25
98-82-8 Cumene 212 197 207 93 98 66-126 5 25
622-96-8 4-Ethyltoluene 218 209 219 96 100 67-128 4 25
108-67-8 1,3,5-Trimethylbenzene 218 197 207 90 95 66-125 5 25
95-63-6 1,2,4-Trimethylbenzene 212 197 207 93 98 67-130 5 25
100-44-7 Benzyl Chloride 430 549 579 128 135 58-151 5 25
541-73-1 1,3-Dichlorobenzene 214 216 228 101 107 57-135 6 25
106-46-7 1,4-Dichlorobenzene 214 211 223 99 104 56-129 5 25
95-50-1 1,2-Dichlorobenzene 212 210 220 99 104 57-138 5 25
120-82-1 1,2,4-Trichlorobenzene 440 510 547 116 124 50-137 7 25
91-20-3 Naphthalene 220 277 302 126 137 50-157 8 25
87-68-3 Hexachlorobutadiene 214 206 217 96 101 50-133 5 25
Laboratory Control Sample percent recovery is verified and accepted based on the on-column result.
Reported results are shown in concentration units and as a result of the calculation, may vary slightly.
% Recovery
Client Sample ID:
Client Project ID:CTS of Asheville / 6252.16.2004.01
Page 19 of 19

WSP USA Environment & Infrastructure Inc. 
1308‐C Patton Avenue 
Asheville, North Carolina 28806 
T: 828‐252‐8130 
North Carolina Corporate Engineering License No. F‐1253, Geology No. C‐247 

October 18, 2024 

Mr. Craig Zeller, P.E. 
U.S. EPA, Region 4 
Remedial Project Manager 
61 Forsyth Street, S.W. 
Atlanta, Georgia 30303 
[e-mail] 

RE: CTS of Asheville, Inc. Superfund Site 
 CERCLA Docket No. CERCLA‐04‐2012‐3762 
 Progress Report, Number 123 (Third Quarter 2024) 
Asheville, Buncombe County, North Carolina 
 WSP Project 6252‐16‐2012 

Dear Mr. Zeller: 

In accordance with the Administrative Settlement Agreement and Order on Consent for Remedial 
Investigation/Feasibility Study between the United States Environmental Protection Agency Region 4 and 
CTS Corporation for the CTS of Asheville, Inc. Superfund Site, enclosed for your review is the progress report 
for the third quarter of 2024. 

If you have any questions, please feel free to call me at (828) 252‐8130. 

Sincerely, 

Matthew E. Wallace, P.E. 
Project Coordinator 

Attachment 

cc: Nathan Bailey, CTS Corporation 
 Beth Hartzell, NCDEQ 
 Kurt Batsel, Northrop Grumman Systems Corporation 

CTS of Asheville, Inc. Superfund Site 
Progress Report No. 123 

Reporting Period: Third Quarter 2024 
CERCLA Docket No. CERCLA‐04‐2012‐3762 

This progress report has been prepared in accordance with requirements specified in Paragraph 42 of the 
Administrative Settlement Agreement and Order on Consent for Remedial Investigation/Feasibility Study between 
the United States Environmental Protection Agency Region 4 and CTS Corporation (Settlement Agreement). 

1. Actions taken to comply with Settlement Agreement during the reporting period: 
 Submitted the Second Quarter 2024 Progress Report to USEPA on July 19, 2024. 
 Performed the annual water supply monitoring event during the week of July 15, 2024. 
 Collected ambient air samples at historical sampling locations east (Springs Area) and west (Powell 
property) of the former plant property on July 17, 2024. 
 Submitted the 2024 Annual Water Supply Monitoring Report to USEPA on September 4, 2024. 
 Submitted the Report of July 2024 Vapor Intrusion Monitoring to USEPA on September 13, 2024. 
 Notified USEPA of a force majeure event (Hurricane Helene) by e‐mail on September 30, 2024. 

2. Sampling results/tests received by Respondent during the reporting period: 
 Sampling results/tests from the July 2024 ambient air monitoring event were received by the Respondent 
and were included in the Report of July 2024 Vapor Intrusion Monitoring dated September 13, 2024. 
 Sampling results/tests from the annual/July 2024 water supply monitoring event were received by the 
Respondent and were included in the 2024 Annual Water Supply Monitoring Report dated September 4, 
2024. 

3. Work planned for next two/three months: 
 Perform the October 2024 ambient air and surface water monitoring event. 
 Schedule the January 2025 ambient air monitoring event. 

4. Problems and delays: 
 Problems and delays are not anticipated for the upcoming two/three months. 

The next progress report representing the fourth quarter of 2024 will be submitted by January 20, 2025. 

WSP USA Environment & Infrastructure Inc. 
1308‐C Patton Avenue 
Asheville, North Carolina 28806 
T: 828‐252‐8130 
North Carolina Corporate Engineering License No. F‐1253, Geology No. C‐247 

October 18, 2024 

Mr. Craig Zeller, P.E. 
U.S. EPA, Region 4 
Remedial Project Manager 
61 Forsyth Street, S.W. 
Atlanta, Georgia 30303 
[e-mail] 

RE: CTS of Asheville, Inc. Superfund Site 
 Consent Decree for Interim Remedial Design/Remedial Action, U.S. v. CTS Corporation, Mills Gap 
Road Associates, and Northrop Grumman Systems Corporation, Civil Action No. 1:16‐cv‐380 
(“Consent Decree”) 
 Progress Report, Number 62 (Third Quarter 2024) 
Asheville, Buncombe County, North Carolina 
 WSP Project 6252‐16‐2012 

Dear Mr. Zeller:  

In accordance with the above‐referenced Consent Decree, enclosed for your review is the progress report 
for the third quarter of 2024. 

If you have any questions, please feel free to call me at (828) 252‐8130. 

Sincerely, 

Matthew E. Wallace, P.E. 
WSP USA Environment & Infrastructure Inc. 
Supervising Contractor 

Attachment 

cc: Nathan Bailey, CTS Corporation 
 Beth Hartzell, NCDEQ 
 Kurt Batsel, Northrop Grumman Systems Corporation 

CTS of Asheville, Inc. Superfund Site   Page 1 of 2 
Consent Decree for Interim Remedial Design/Remedial Action 
Progress Report, Number 62 (Third Quarter 2024)    

CTS of Asheville, Inc. Superfund Site 
Consent Decree Progress Report No. 62 

Reporting Period: Third Quarter 2024 
Consent Decree for Interim Remedial Design/Remedial Action, U.S. v. CTS Corporation, Mills Gap Road 
Associates, and Northrop Grumman Systems Corporation, Civil Action No. 1:16‐cv‐380 (CD) 

This progress report has been prepared in accordance with requirements specified in the Statement of Work 
Section 5.1 of the CD and is submitted on behalf of CTS Corporation, Mills Gap Road Associates, and Northrop 
Grumman Systems Corporation (Settling Defendants). 

a) Actions that have been taken toward achieving compliance with the CD: 
 Participated in periodic meetings with USEPA. 
 Performed ISCO detection monitoring (‘purple check’) field activities. 
 Performed the July 2024 ISCO performance monitoring field activities. 
 Performed the July 2024 Site Wide monitoring field activities. 
 Notified USEPA of a force majeure event (Hurricane Helene) by e‐mail on September 30, 2024. 
 As described below, two deliverables were submitted to USEPA. 

b) Results of sampling, tests, and all other data received or generated: 
 Sampling results associated with the July 2024 ISCO Performance Monitoring event were received and 
were included in the July 2024 ISCO Performance Monitoring Report dated September 19, 2024. 
 Sampling results associated with the July 2024 Site Wide Monitoring event were received and will be 
included in the July 2024 Site Wide Groundwater Monitoring Report. 

c) Deliverables submitted to EPA: 
 On September 19, 2024, the July 2024 ISCO Performance Monitoring Report was submitted to USEPA. 
 On July 19, 2024, the Second Quarter 2024 Progress Report was submitted to USEPA. 

d) Activities related to Remedial Action (RA) Construction that are scheduled for the next six weeks/three 
months: 
 Schedule the January 2025 ISCO Performance Monitoring event. 
 Schedule the January 2025 Site Wide Monitoring event. 

e) An updated RA Construction Schedule, with information regarding percentage of completion, delays 
encountered or anticipated that may affect the future schedule for implementation of the Work, and a 
description of efforts made to mitigate those delays or anticipated delays: 
 An updated RA Construction Schedule which included the continued implementation of the ISCO Remedial 
Action and the Site Wide Monitoring through the end of 2024 was attached to the Fourth Quarter 2023 
Progress Report submitted to USEPA on January 19, 2024. Delays in implementing the Work are not 
anticipated. 

CTS of Asheville, Inc. Superfund Site   Page 2 of 2 
Consent Decree for Interim Remedial Design/Remedial Action 
Progress Report, Number 62 (Third Quarter 2024)    

f) Modifications to the work plans or other schedules that are proposed or have been approved by EPA: 
 Significant modifications to work plans or other schedules have not been proposed during the reporting 
period.  

g) Activities undertaken in support of the Community Involvement Plan (CIP) during the reporting period and 
those to be undertaken in the next six weeks/three months: 
 Activities in support of the CIP undertaken during this reporting period include participating in 
Site/community visits, assisting the USEPA with communicating monitoring results, and maintaining the 
Site information sign. 
 Activities in support of the CIP to be undertaken in the next three months include participating in 
Site/community visits, assisting the USEPA with potential community updates and media relations on the 
Interim Remedial Actions being conducted at the Site, assisting the USEPA with communicating monitoring 
results, maintaining the Site information sign, and providing pertinent updates on Site activities through 
the CTS of Asheville website (www.CTSofAsheville.com). 

The next progress report representing the fourth quarter of 2024 will be submitted by January 20, 2025.