AS-88075_88075_CA_RMR_20230915

MW-28 SAMPLING

Prepared For:
MB HAYNES CORPORATION 187 DEAVERVIEW ROAD ASHEVILLE, NORTH CAROLINA
BLE Project Number J23-5293-24
September 15, 2023

September 15, 2023 MB Haynes Corporation 187 Deaverview Road Asheville, North Carolina 28806
Attention: Mr. Fred Lewis
Subject: Report of AFVR & MW-28 Sampling MB Haynes Corporation
187 Deaverview Road Asheville, North Carolina BLE Project Number J23-5293-24 Incident No. 88075 Dear Mr. Lewis: As authorized by your acceptance of our Proposal Number J23-5293-24, dated December 8, 2022, Bunnell Lammons Engineering, Inc. (BLE) has completed the AFVR and three (3) sampling events for groundwater monitoring well MW-28. The purpose of the work was to perform a remedial action in an attempt to reduce the concentrations of benzene detected in MW-28 in accordance with a DWM approved plan. The enclosed
report describes the work performed and presents the results obtained. Sincerely,

BUNNELL LAMMONS ENGINEERING INC.

Thomas A. O’Shea Andrew W. Alexander, P.G. RSM Project Geologist Consultant Geologist Registered, North Carolina #2830 Registered, North Carolina #1475
cc: Ms. Caroline LaFond – NCDWM - UST Section, Asheville, NC
AFVR & MW-28 Sampling September 15, 2023
MB Haynes Corporation, Asheville, NC BLE Project No. J23-5296-24
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TABLE OF CONTENTS

1.0 PROJECT INFORMATION ........................................................................................................ 1
2.0 SCOPE OF SERVICES ................................................................................................................. 3 2.1 Aggressive Fluid Vapor Recovery (AFVR)..................................................................................... 3 2.2 Groundwater Sampling .................................................................................................................... 3
3.0 RESULTS ....................................................................................................................................... 3 3.1 AFVR Results .................................................................................................................................. 3 3.2 Groundwater Results ........................................................................................................................ 3
4.0 CONCLUSIONS AND FUTURE PLANS ................................................................................... 4
5.0 QUALIFICATION OF REPORT ................................................................................................ 4 Tables Table 1 2023 Sampling Matrix Table 2 Laboratory Analytical Results of Groundwater Samples – MW-28 Figures Figure 1 Site Location Map Figure 2 Groundwater Elevation Map – September 26, 2022 Appendices Appendix A AFVR Field Log and Disposal Manifest Appendix B Laboratory Data – February 22, 2023 Sampling Event Appendix C Laboratory Data – May 19, 2023 Sampling Event Appendix D Laboratory Data – July 19, 2023 Sampling Event
AFVR & MW-28 Sampling September 15, 2023
MB Haynes Corporation, Asheville, NC BLE Project No. J23-5296-24
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1.0 PROJECT INFORMATION
The subject site is located at 187 Deaverview Road in Asheville, North Carolina (Figure 1). MB Haynes Corporation (MB Haynes) operates a multi-discipline construction services company on the property. The facility includes a vehicle fueling operation with one above ground diesel and one above ground gasoline storage tank with a single dispenser pump for each fuel type. The property slopes from Deaverview Road to the north and terminates at a tributary to Smith Mill Creek. The fueling area is located near the top of the slope approximately 150 feet from Deaverview Road (Figure 2).
We understand that on April 30, 2007, a discharge of gasoline into a tributary of Smith Mill Creek was discovered on the subject property. The local fire department conducted an emergency response action by
deploying oil absorbent booms at the point of discharge and further downstream. MB Haynes personnel investigated the incident by excavating a small trench near the discharge point. MB Haynes confirmed the presence of gasoline in the trench’s shallow groundwater. MB Haynes deployed absorbent materials in the
trench as part of an emergency remedial action. Further investigation by MB Haynes revealed that a flexible hose coupling at their gasoline dispenser pump had failed resulting in a release of gasoline. The hose was replaced by a contractor working for MB Haynes and the leak was terminated. On May 1, 2007, MB Haynes contacted the Asheville Regional Office of the North Carolina Department of Environment and Natural Resources (NCDENR) [now the NCDEQ] to report the incident. The NCDENR assigned the Department of Waste Management (DWM) as the regulatory authority for the incident. The DWM conducted a site visit on May 2, 2007 and subsequently issued a Notice of Violation (NOV) letter on May 4, 2007. The NOV assigned an incident number (88075) and required MB Haynes to perform assessment and remedial actions.
The aforementioned NOV requires the performance of a Comprehensive Site Assessment (CSA) followed by a Corrective Action Plan (CAP). MB Haynes retained BLE to perform the CSA and to implement interim remedial actions.
A soil assessment in the release area was conducted in 2007 and 2008. The limits of contaminated soil were defined and a mobile source remediation unit (soil vapor extraction [SVE] system) was deployed in
2008 as an interim remedial action as approved by the DWM. The SVE system concluded operations in 2020 per DWM approval. Seventeen groundwater monitoring wells were installed by BLE from 2007 through 2009 to establish the horizontal limits of the free-product and dissolved phase gasoline. The wells were designated MW-27 through TMW-43. The limits of the gasoline contaminants were defined. Please note that a groundwater monitoring well designated MW-26 was already present on the MB Haynes property and was installed as part of the neighboring Andrex groundwater incident. Groundwater monitoring well MW-26 has been designated as the upgradient well for the MB Haynes groundwater incident. Additionally, BLE conducted surface water sampling in Smith Mill Creek Tributary and in Smith Mill Creek which are the receiving waters for the MB Haynes groundwater discharge. The surface water impacts were also substantially
defined by this assessment. Free-phase (free-product) gasoline was present near the release area (gas pump) and near Smith Mill Creek Tributary. BLE initiated product removal in 2008 utilizing a passive downhole skimmer in several affected wells. Product recovery from the skimmer was performed by MB Haynes. Aggressive fluid vapor recovery (AFVR) was also performed in affected wells by a contractor retained by MB Haynes in 2007 and 2008.
AFVR & MW-28 Sampling September 15, 2023
MB Haynes Corporation, Asheville, NC BLE Project No. J23-5296-24
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A free-product interceptor trench was designed by BLE and installed by MB Haynes in February 2009 near Smith Mill Creek Tributary. Product recovery from the trench was performed by MB Haynes from November 2009 until December 2020 when the DWM approved termination of remedial actions. Several groundwater and surface water sampling events have been conducted as part of the CSA. As required by the DWM we conducted one site-wide groundwater and surface water sampling event in January 2010 to establish baseline water quality conditions. The results of the 2010 event have been
submitted to the DWM. The DWM required that MB Haynes perform subsequent annual sampling events to monitor groundwater quality and to evaluate effectiveness of the ongoing remedial measures. Annual sampling events have been conducted each winter or early spring from 2010 through September 2022.
On December 10, 2020, Ms. Caroline LaFond of the DWM communicated with MB Haynes and BLE concerning a request for site closure. Ms. LaFond outlined an approach for the site to quality for a NORP.
The approach included termination of remedial actions (SVE and Product Recovery in December 2020) and the performance of four (4) semi-annual water quality sampling events to be conducted in 2021 and 2022. The schedule and sampling plan was documented in a letter dated December 16, 2020 from BLE to the DWM on behalf of MB Haynes. As of January 2021, all remedial actions have been terminated. Sampling was performed in accordance with the DWM approved 2020-2022 Sampling Matrix. BLE performed the fourth of the four required semi-annual sampling events during September 2022. The results indicated that the detected concentration of benzene in MW-28 exceeded the DEQ Gross Contamination Levels for Groundwater (GCL). The report of the September 2022 sampling event was recently issued.
We contacted Ms. LaFond to discuss the findings on November 30, 2022. Ms. LaFond stated that the DWM cannot complete an NORP with GCL exceedances. The DMW suggested that MB Haynes perform a single day 8-hour duration AFVR event in MW-28 to attempt to remove residual product and potentially lower the
benzene concentration to below the GCL. The DWM also specified a post-AFVR sampling frequency for 2023 to demonstrate compliance for the NORP (Table 1).
This report report describes the work performed and presents the results obtained for the single AFVR event and three (3) of the four (4) post-AFVR sampling events in MW-28.
AFVR & MW-28 Sampling September 15, 2023
MB Haynes Corporation, Asheville, NC BLE Project No. J23-5296-24
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2.0 SCOPE OF SERVICES
2.1 Aggressive Fluid Vapor Recovery (AFVR) On January 16, 2023, BLE mobilized a multiphase extraction unit (MEU), mobile holding tanks, and crew to the site. The MEU and mobile tanks was set up by our crew on an off-site private property north of MB Haynes on the opposite side of the creek. BLE provided the services of an environmental technician to coordinate MEU setup with MB Haynes and to perform the AFVR event.
On January 17, 2023, a vacuum was applied to MW-28 for 8-hours. Off-gas treatment was be provided by BLE for the test period. Monitoring of the system off-gas and liquids recovery was be performed by the crew in accordance with standard practice.
2.2 Groundwater Sampling A groundwater sample was collected from MW-28 in accordance with the approved matrix in February,
May, and July 2023 (Table 1). The groundwater sample for each event was submitted to an environmental laboratory for analysis of volatile organic compounds (VOCs) with IPE and MTBE by EPA Method 8260D.
3.0 RESULTS
3.1 AFVR Results The January 17, 2023 AFVR event recovered 125 gallons of liquids from MW-28 which were disposed at VLS Recovery Services in Mauldin, SC on January 18, 2023. The AFVR field log and disposal manifest is included in Appendix A. 3.2 Groundwater Results The laboratory analytical results from each sampling event are included in the appendices as follows: February
22, 2023 (Appendix B); May 19, 2023 (Appendix C); and July 19, 2023 (Appendix D). The results from September 2022 and from all three 2023 sampling events are summarized on Table 2.
The results indicate that the detected concentration of benzene (and all other VOCs) do not exceed the GCL in MW-28.

AFVR & MW-28 Sampling September 15, 2023
MB Haynes Corporation, Asheville, NC BLE Project No. J23-5296-24
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4.0 CONCLUSIONS AND FUTURE PLANS
We conclude that the January 2023 AFVR event resulted in reduced concentrations of benzene in MW-28 from that detected September 2022. We also conclude that the detected benzene concentrations for three (3) of the four (4) required post-AFVR sampling events do not exceed the GCL and demonstrate compliance for the future NORP. Sampling and analysis for the fourth of the four (4) required post-AFVR sampling events in MW-28 is
currently underway. If the results indicate that the benzene concentration in MW-28 remains below the GCL a site-wide sampling event will be performed in accordance with the DWM approved plan (Table 1).
A report of findings from the above will be submitted to the DWM as required.
5.0 QUALIFICATION OF REPORT
The activities and evaluative approaches used in this assessment are consistent with those normally employed in environmental assessment projects of this type. Our evaluation of the site conditions was based on the unique project information and data obtained. This report has been prepared on behalf of and exclusively for the use of MB Haynes Corporation, Asheville, North Carolina. This report and the findings contained herein are not intended to be relied upon by any other party without BLE’s prior written consent.

Tables

Table 1
2023 Sampling Matrix
MB Haynes Corp.
Asheville, North Carolina
NCDEQ Incident Number 88075
BLE Project No. 5293-24
December 2022*February 2023 May 2023 July 2023 September 2023
St
a
t
i
o
n
8-Hour AFVR Event
in MW-28 VO
C
s
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r

L
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e
l
Groundwater
MW-26 --No No No No No No Yes Yes
MW-27 --No No No No No No Yes Yes
MW-28 AFVR Yes**Yes**Yes**Yes**Yes**Yes**Yes***Yes***
MW-29 --No No No No No No Yes Yes
MW-30 --No No No No No No Yes Yes
MW-31 --No No No No No No Yes Yes
MW-32 --No No No No No No Yes Yes
MW-33 --No No No No No No Yes Yes
MW-34 --No No No No No No Yes Yes
MW-35 --No No No No No No Yes Yes
MW-36 --No No No No No No Yes Yes
MW-37 --No No No No No No Yes Yes
MW-38 --No No No No No No Yes Yes
MW-39 --No No No No No No Yes Yes
MW-40 --No No No No No No Yes Yes
MW-41 --No No No No No No Yes Yes
TMW-42 --No No No No No No Yes Yes
TMW-43 --No No No No No No Yes Yes
Surface Water
SMT-1 --No --No --No --Yes --
SMT-2 --No --No --No --Yes --
SMT-3 --No --No --No --Yes --
SMT-4 --No --No --No --Yes --
SMT-5 --No --No --No --Yes --
SMT-6 --No --No --No --Yes --
SMT-7 --No --No --No --Yes --
SMT-8 --No --No --No --Yes --
SMT-9 --No --No --No --No --
SMT-10 --No --No --No --No --
SMT-11 --No --No --No --No --
SMT-12 --No --No --No --No --
SMT-13 --No --No --No --No --
Notes:
* Event may be performed in January 2023
** If sample results for MW-28 exceed GCL for these events, additional AFVR events may be necessary and the sampling schedule may be modified/extended.
*** MW-28 will be sampled and analyzed in early September 2023, remaining stations sampled later in September if MW-28 results are GCL compliant.
VOC analyses performed by EPA Method 8260D
Matrix discussed and verbally approved by DEQ on November 30, 2022
AFVR = Aggressive Fluid Vapor Recovery
Table 1 Matrix 2023 of 5293-24 MB Haynes 2022-2023 Matrix.xlsx
Prepared by: AWA
Checked by: TAO
Table 2
Laboratory Analytical Results of Groundwater Samples - MW-28
Detected Petroleum Hydrocarbon Compounds Only
MB Haynes Corp.
Asheville, North Carolina
NCDEQ Incident Number 88705
BLE Project No. J23-5293-24
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NC2L 1 70 70 70 70 600 70 25 20 6 70 600 400 NE 400 500 NE
GCL 5,000 5,900 8,800 14,750 70,000 80,000 30,500 11,700 20,000 6,000 26,100 260,000 28,500 NE 24,100 50,000 NE
9/27/2022 MW-28 6,800 ND ND ND ND 2,300 48 ND 100 280 130 18,000 1,200 NT 280 8,700 37,838
2/22/2023 MW-28 ND 8.0 ND ND ND 58 6.6 ND ND 20 27 7.0 160 NT 44 120 451
5/19/2023 MW-28 1,900 ND ND ND ND 1,100 42 ND ND 140 120 8,600 840 NT 240 3,900 16,882
7/19/2023 MW-28 2,900 ND ND ND ND 1,700 89 ND ND 250 150 15,000 1,200 NT 300 7,000 28,589
Notes:
VOC analyses performed by EPA Method 8260D.
Units in mg/l or parts per billion (ppb).
Refer to laboratory data for concentrations corresponding to "J" and "H" values.
NC2L = North Carolina Groundwater Standards under Title 15A Subchapter 2L in mg/l (April 1, 2022). Note: Standard for p-Isopropyltoluene is an IMAC.
GCL = North Carolina Gross Contaminant Levels for Groundwater revised October 8, 2020.
NE = not established.
ND = not detected at laboratory detection limit.
NT = not tested.
1,200 = concentration exceeds NC2L Standard
6,000 = concentration exceeds GCL Standard
MW-28 Table Thru July 2023.xlsx
Table 1 GW MW-28
Prepared by: RLB/AWA
Checked by: TAO

Figures

SITE
1
SMI
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TRIBU
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SANITARY SEWER MANHOLE
(TYPICAL)
SANITARY SEWER CLEANOUT
(TYPICAL)
APPROXIMATE LOCATION OF
SANITARY SEWER LINES
SEWER LINE
PROPERTY LINES
PR
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SANITARY
(FLO
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)

APPENDIX A
AFVR Field Log and Disposal Manifest

APPENDIX B
Laboratory Data –
February 22, 2023 Sampling Event

The electronic signature above is the equivalent of a handwritten signature.
This report shall not be reproduced,except in its entirety,without the written approval of Pace Analytical Services,LLC.
Pace Analytical Services,LLC (formerly Shealy Environmental Services,Inc.)
106 Vantage Point Drive West Columbia,SC 29172
Tel:[phone] Fax:[phone] www.pacelabs.com
Report of Analysis
Bunnell-Lammons Engineering,Inc.
6004 Ponders Court
Greenville,SC 29615
Attention:Andy Alexander
Project Name:MB Haynes Corp.
Project Number:J23-5293-24
Lot Number:YB23073
Date Completed:03/16/2023
03/16/2023 10:38 AM
Approved and released by:
Project Manager II:Lucas Odom
Page 1 of 18
PACE ANALYTICAL SERVICES,LLC
SC DHEC No:32010001 NELAC No:E87653 NC DENR No:329 NC Field Parameters No:5639
Pace Analytical Services,LLC (formerly Shealy Environmetal Services,Inc.)
106 Vantage Point Drive West Columbia,SC 29172 [phone] Fax [phone] www.pacelabs.com
Case Narrative
Bunnell-Lammons Engineering,Inc.
Lot Number:YB23073
This Report of Analysis contains the analytical result(s)for the sample(s)listed on the Sample Summary
following this Case Narrative.The sample receiving date is documented in the header information
associated with each sample.
All results listed in this report relate only to the samples that are contained within this report.Where
sampling is conducted by the client,results relate to the accuracy of the information provided,and as the
samples are received.
Sample receipt,sample analysis,and data review have been performed in accordance with the most
current approved The NELAC Institute (TNI)standards,the Pace Analytical Services,LLC ("Pace")
Laboratory Quality Manual,standard operating procedures (SOPs),and Pace policies.Any exceptions to
the TNI standards,the Laboratory Quality Manual,SOPs or policies are qualified on the results page or
discussed below.
Pace is a TNI accredited laboratory;however,the following analyses are currently not listed on our TNI
scope of accreditation:Drinking Water:VOC (excluding BTEX,MTBE,Naphthalene,&1,2-
dichloroethane)EPA 524.2,E.coli and Total coliforms SM 9223 B-2004,Solid Chemical Material:TOC
Walkley-Black,Biological Tissue:All,Non-Potable Water:SGT-HEM EPA 1664B,Silica EPA 200.7,
Boron,Calcium,Silicon,Strontium EPA 200.8,Bicarbonate,Carbonate,and Hydroxide Alkalinity SM 2320
B-2011,SM 9221 C E-2006 &SM 9222D-2006,Strontium SW-846 6010D,VOC SM 6200 B-2011,Fecal
Coliform Colilert-18.
If you have any questions regarding this report,please contact the Pace Project Manager listed on the
cover page.
VOCs by GC/MS
Due to the large number of spiked analytes,there is a high probability that one or more analytes will
recover outside acceptance limits.The laboratory's SOP allows for 10%of analytes to recover marginally
outside criteria.The following analytes recovered marginally outside LCS/LCSD criteria:Acetone.
Page 2 of 18
PACE ANALYTICAL SERVICES, LLC
Sample Summary
Bunnell-Lammons Engineering, Inc.
Lot Number: YB23073

Sample Number Sample ID Matrix Date Sampled Date Received
001 02/22/2023 1330MW-28 Aqueous 02/23/2023
(1 sample)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)

Page 3 of 18
PACE ANALYTICAL SERVICES, LLC
Detection Summary
Bunnell-Lammons Engineering, Inc.
Lot Number: YB23073

Sample Sample ID Matrix Parameter Method Result Q Units Page
001 MW-28 Aqueous Acetone 8260D 82 JLS ug/L 5
001 MW-28 Aqueous n-Butylbenzene 8260D 8.0 ug/L 6
001 MW-28 Aqueous Ethylbenzene 8260D 58 ug/L 6
001 MW-28 Aqueous Isopropylbenzene 8260D 6.6 ug/L 6
001 MW-28 Aqueous Naphthalene 8260D 20 ug/L 7
001 MW-28 Aqueous n-Propylbenzene 8260D 27 ug/L 7
001 MW-28 Aqueous Toluene 8260D 7.0 ug/L 7
001 MW-28 Aqueous 1,2,4-Trimethylbenzene 8260D 160 ug/L 7
001 MW-28 Aqueous 1,3,5-Trimethylbenzene 8260D 44 ug/L 7
001 MW-28 Aqueous Xylenes (total)8260D 120 ug/L 7
(10 detections)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)

Page 4 of 18
Description:Matrix:
Date Received:
Client:Laboratory ID:
Date Sampled:
Bunnell-Lammons Engineering, Inc.
MW-28
YB23073-001
02/22/2023 1330
02/23/2023
Aqueous
Volatile Organic Compounds by GC/MS
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 5030B 8260D 5 03/01/2023 1809 JWO 68881
AnalyticalCAS
Parameter Number Method Result Q LOQ Units Run DL
Acetone 67-64-1 8260D 82 JLS 1ug/L25100
Benzene 71-43-2 8260D ND 1ug/L2.05.0
Bromobenzene 108-86-1 8260D ND 1ug/L2.05.0
Bromochloromethane 74-97-5 8260D ND 1ug/L2.05.0
Bromoform 75-25-2 8260D ND S 1ug/L2.05.0
Bromomethane (Methyl bromide)74-83-9 8260D ND 1ug/L2.010
2-Butanone (MEK)78-93-3 8260D ND S 1ug/L1050
n-Butylbenzene 104-51-8 8260D 8.0 1ug/L2.05.0
sec-Butylbenzene 135-98-8 8260D ND 1ug/L2.05.0
tert-Butylbenzene 98-06-6 8260D ND 1ug/L2.05.0
Carbon tetrachloride 56-23-5 8260D ND 1ug/L2.05.0
Chlorobenzene 108-90-7 8260D ND 1ug/L2.05.0
Chloroethane 75-00-3 8260D ND 1ug/L2.010
Chloroform 67-66-3 8260D ND 1ug/L2.05.0
Chloromethane (Methyl chloride)74-87-3 8260D ND 1ug/L2.55.0
2-Chlorotoluene 95-49-8 8260D ND 1ug/L2.05.0
4-Chlorotoluene 106-43-4 8260D ND 1ug/L2.05.0
1,2-Dibromo-3-chloropropane (DBCP)96-12-8 8260D ND 1ug/L2.05.0
Dibromochloromethane 124-48-1 8260D ND 1ug/L2.05.0
1,2-Dibromoethane (EDB)106-93-4 8260D ND 1ug/L2.05.0
Dibromomethane (Methylene bromide)74-95-3 8260D ND 1ug/L2.05.0
trans-1,4-Dichloro-2-butene 110-57-6 8260D ND S 1ug/L2.510
1,2-Dichlorobenzene 95-50-1 8260D ND 1ug/L2.05.0
1,3-Dichlorobenzene 541-73-1 8260D ND 1ug/L2.05.0
1,4-Dichlorobenzene 106-46-7 8260D ND 1ug/L2.05.0
Dichlorodifluoromethane 75-71-8 8260D ND 1ug/L3.010
1,1-Dichloroethane 75-34-3 8260D ND 1ug/L2.05.0
1,2-Dichloroethane 107-06-2 8260D ND 1ug/L2.05.0
1,1-Dichloroethene 75-35-4 8260D ND 1ug/L2.05.0
cis-1,2-Dichloroethene 156-59-2 8260D ND 1ug/L2.05.0
trans-1,2-Dichloroethene 156-60-5 8260D ND 1ug/L2.05.0
1,2-Dichloropropane 78-87-5 8260D ND 1ug/L2.05.0
1,3-Dichloropropane 142-28-9 8260D ND 1ug/L2.05.0
2,2-Dichloropropane 594-20-7 8260D ND 1ug/L2.05.0
1,1-Dichloropropene 563-58-6 8260D ND 1ug/L2.010
cis-1,3-Dichloropropene 10061-01-5 8260D ND 1ug/L2.05.0
trans-1,3-Dichloropropene 10061-02-6 8260D ND 1ug/L2.05.0
Diisopropyl ether (IPE)108-20-3 8260D ND 1ug/L2.05.0
Ethylbenzene 100-41-4 8260D 58 1ug/L2.05.0
Hexachlorobutadiene 87-68-3 8260D ND 1ug/L2.05.0
J = Estimated result < LOQ and > DL_
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range
P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria
H = Out of holding time
Q = Surrogate failure
L = LCS/LCSD failure
S = MS/MSD failure
DL = Detection Limit
W = Reported on wet weight basis
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
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Page 5 of 18
Description:Matrix:
Date Received:
Client:Laboratory ID:
Date Sampled:
Bunnell-Lammons Engineering, Inc.
MW-28
YB23073-001
02/22/2023 1330
02/23/2023
Aqueous
Volatile Organic Compounds by GC/MS
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 5030B 8260D 5 03/01/2023 1809 JWO 68881
AnalyticalCAS
Parameter Number Method Result Q LOQ Units Run DL
2-Hexanone 591-78-6 8260D ND 1ug/L1050
Isopropylbenzene 98-82-8 8260D 6.6 1ug/L2.05.0
p-Isopropyltoluene 99-87-6 8260D ND 1ug/L2.05.0
Methyl tertiary butyl ether (MTBE)1634-04-4 8260D ND 1ug/L2.05.0
4-Methyl-2-pentanone 108-10-1 8260D ND 1ug/L1050
Methylene chloride 75-09-2 8260D ND 1ug/L2.05.0
Naphthalene 91-20-3 8260D 20 1ug/L2.05.0
n-Propylbenzene 103-65-1 8260D 27 1ug/L2.05.0
Styrene 100-42-5 8260D ND 1ug/L2.15.0
1,1,1,2-Tetrachloroethane 630-20-6 8260D ND 1ug/L2.05.0
1,1,2,2-Tetrachloroethane 79-34-5 8260D ND 1ug/L2.05.0
Tetrachloroethene 127-18-4 8260D ND 1ug/L2.05.0
Toluene 108-88-3 8260D 7.0 1ug/L2.05.0
1,1,2-Trichloro-1,2,2-Trifluoroethane 76-13-1 8260D ND 1ug/L2.15.0
1,2,3-Trichlorobenzene 87-61-6 8260D ND 1ug/L2.05.0
1,2,4-Trichlorobenzene 120-82-1 8260D ND 1ug/L2.05.0
1,1,1-Trichloroethane 71-55-6 8260D ND 1ug/L2.05.0
1,1,2-Trichloroethane 79-00-5 8260D ND 1ug/L2.05.0
Trichloroethene 79-01-6 8260D ND 1ug/L2.05.0
Trichlorofluoromethane 75-69-4 8260D ND 1ug/L2.05.0
1,2,3-Trichloropropane 96-18-4 8260D ND 1ug/L2.05.0
1,2,4-Trimethylbenzene 95-63-6 8260D 160 1ug/L2.05.0
1,3,5-Trimethylbenzene 108-67-8 8260D 44 1ug/L2.05.0
Vinyl chloride 75-01-4 8260D ND 1ug/L2.05.0
Xylenes (total)1330-20-7 8260D 120 1ug/L2.05.0
AcceptanceRun 1
Surrogate Q % Recovery Limits
Bromofluorobenzene 99 70-130
1,2-Dichloroethane-d4 102 70-130
Toluene-d8 101 70-130
J = Estimated result < LOQ and > DL_
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range
P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria
H = Out of holding time
Q = Surrogate failure
L = LCS/LCSD failure
S = MS/MSD failure
DL = Detection Limit
W = Reported on wet weight basis
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)

Page 6 of 18
QC Summary
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)

Page 7 of 18
Volatile Organic Compounds by GC/MS - MB
Batch:Prep Method:
Sample ID:YQ68881-001
68881 5030B
Analytical Method:8260D
Matrix:Aqueous
Parameter Result Q LOQ DL Units Analysis DateDil
Acetone ND 03/01/2023 1149205.0 ug/L1
Benzene ND 03/01/2023 11491.0 0.40 ug/L1
Bromobenzene ND 03/01/2023 11491.0 0.40 ug/L1
Bromochloromethane ND 03/01/2023 11491.0 0.40 ug/L1
Bromoform ND 03/01/2023 11491.0 0.40 ug/L1
Bromomethane (Methyl bromide)ND 03/01/2023 11492.0 0.40 ug/L1
2-Butanone (MEK)ND 03/01/2023 1149102.0 ug/L1
n-Butylbenzene ND 03/01/2023 11491.0 0.40 ug/L1
sec-Butylbenzene ND 03/01/2023 11491.0 0.40 ug/L1
tert-Butylbenzene ND 03/01/2023 11491.0 0.40 ug/L1
Carbon tetrachloride ND 03/01/2023 11491.0 0.40 ug/L1
Chlorobenzene ND 03/01/2023 11491.0 0.40 ug/L1
Chloroethane ND 03/01/2023 11492.0 0.40 ug/L1
Chloroform ND 03/01/2023 11491.0 0.40 ug/L1
Chloromethane (Methyl chloride)ND 03/01/2023 11491.0 0.50 ug/L1
2-Chlorotoluene ND 03/01/2023 11491.0 0.40 ug/L1
4-Chlorotoluene ND 03/01/2023 11491.0 0.40 ug/L1
1,2-Dibromo-3-chloropropane (DBCP)ND 03/01/2023 11491.0 0.40 ug/L1
Dibromochloromethane ND 03/01/2023 11491.0 0.40 ug/L1
1,2-Dibromoethane (EDB)ND 03/01/2023 11491.0 0.40 ug/L1
Dibromomethane (Methylene bromide)ND 03/01/2023 11491.0 0.40 ug/L1
trans-1,4-Dichloro-2-butene ND 03/01/2023 11492.0 0.50 ug/L1
1,2-Dichlorobenzene ND 03/01/2023 11491.0 0.40 ug/L1
1,3-Dichlorobenzene ND 03/01/2023 11491.0 0.40 ug/L1
1,4-Dichlorobenzene ND 03/01/2023 11491.0 0.40 ug/L1
Dichlorodifluoromethane ND 03/01/2023 11492.0 0.60 ug/L1
1,1-Dichloroethane ND 03/01/2023 11491.0 0.40 ug/L1
1,2-Dichloroethane ND 03/01/2023 11491.0 0.40 ug/L1
1,1-Dichloroethene ND 03/01/2023 11491.0 0.40 ug/L1
cis-1,2-Dichloroethene ND 03/01/2023 11491.0 0.40 ug/L1
trans-1,2-Dichloroethene ND 03/01/2023 11491.0 0.40 ug/L1
1,2-Dichloropropane ND 03/01/2023 11491.0 0.40 ug/L1
1,3-Dichloropropane ND 03/01/2023 11491.0 0.40 ug/L1
2,2-Dichloropropane ND 03/01/2023 11491.0 0.40 ug/L1
1,1-Dichloropropene ND 03/01/2023 11492.0 0.40 ug/L1
cis-1,3-Dichloropropene ND 03/01/2023 11491.0 0.40 ug/L1
trans-1,3-Dichloropropene ND 03/01/2023 11491.0 0.40 ug/L1
Diisopropyl ether (IPE)ND 03/01/2023 11491.0 0.40 ug/L1
Ethylbenzene ND 03/01/2023 11491.0 0.40 ug/L1
Hexachlorobutadiene ND 03/01/2023 11491.0 0.40 ug/L1
2-Hexanone ND 03/01/2023 1149102.0 ug/L1
Isopropylbenzene ND 03/01/2023 11491.0 0.40 ug/L1
p-Isopropyltoluene ND 03/01/2023 11491.0 0.40 ug/L1
Methyl tertiary butyl ether (MTBE)ND 03/01/2023 11491.0 0.40 ug/L1
Note:Calculations are performed before rounding to avoid round-off errors in calculated results
LOQ = Limit of Quantitation ND = Not detected at or above the DL
J = Estimated result < LOQ and > DL
N = Recovery is out of criteria
P = The RPD between two GC columns exceeds 40%
+ = RPD is out of criteria
_DL = Detection Limit
* = RSD is out of criteria
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)

Page 8 of 18
Volatile Organic Compounds by GC/MS - MB
Batch:Prep Method:
Sample ID:YQ68881-001
68881 5030B
Analytical Method:8260D
Matrix:Aqueous
Parameter Result Q LOQ DL Units Analysis DateDil
4-Methyl-2-pentanone ND 03/01/2023 1149102.0 ug/L1
Methylene chloride ND 03/01/2023 11491.0 0.40 ug/L1
Naphthalene ND 03/01/2023 11491.0 0.40 ug/L1
n-Propylbenzene ND 03/01/2023 11491.0 0.40 ug/L1
Styrene ND 03/01/2023 11491.0 0.41 ug/L1
1,1,1,2-Tetrachloroethane ND 03/01/2023 11491.0 0.40 ug/L1
1,1,2,2-Tetrachloroethane ND 03/01/2023 11491.0 0.40 ug/L1
Tetrachloroethene ND 03/01/2023 11491.0 0.40 ug/L1
Toluene ND 03/01/2023 11491.0 0.40 ug/L1
1,1,2-Trichloro-1,2,2-Trifluoroethane ND 03/01/2023 11491.0 0.42 ug/L1
1,2,3-Trichlorobenzene ND 03/01/2023 11491.0 0.40 ug/L1
1,2,4-Trichlorobenzene ND 03/01/2023 11491.0 0.40 ug/L1
1,1,1-Trichloroethane ND 03/01/2023 11491.0 0.40 ug/L1
1,1,2-Trichloroethane ND 03/01/2023 11491.0 0.40 ug/L1
Trichloroethene ND 03/01/2023 11491.0 0.40 ug/L1
Trichlorofluoromethane ND 03/01/2023 11491.0 0.40 ug/L1
1,2,3-Trichloropropane ND 03/01/2023 11491.0 0.40 ug/L1
1,2,4-Trimethylbenzene ND 03/01/2023 11491.0 0.40 ug/L1
1,3,5-Trimethylbenzene ND 03/01/2023 11491.0 0.40 ug/L1
Vinyl chloride ND 03/01/2023 11491.0 0.40 ug/L1
Xylenes (total)ND 03/01/2023 11491.0 0.40 ug/L1
Surrogate Q % Rec Acceptance
Limit
Bromofluorobenzene 100 70-130
1,2-Dichloroethane-d4 99 70-130
Toluene-d8 101 70-130
Note:Calculations are performed before rounding to avoid round-off errors in calculated results
LOQ = Limit of Quantitation ND = Not detected at or above the DL
J = Estimated result < LOQ and > DL
N = Recovery is out of criteria
P = The RPD between two GC columns exceeds 40%
+ = RPD is out of criteria
_DL = Detection Limit
* = RSD is out of criteria
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)

Page 9 of 18
Volatile Organic Compounds by GC/MS - LCS
Batch:Prep Method:
Sample ID:YQ68881-002
68881 5030B
Analytical Method:8260D
Matrix:Aqueous
Parameter
Result
Q % Rec
Spike
Amount
Analysis Date
%Rec
LimitDil(ug/L)(ug/L)
Acetone 57 03/01/2023 1019N5710060-1401
Benzene 51 03/01/2023 10191025070-1301
Bromobenzene 49 03/01/2023 1019985070-1301
Bromochloromethane 47 03/01/2023 1019945070-1301
Bromoform 47 03/01/2023 1019945070-1301
Bromomethane (Methyl bromide)54 03/01/2023 10191075070-1301
2-Butanone (MEK)88 03/01/2023 10198810070-1301
n-Butylbenzene 51 03/01/2023 10191035070-1301
sec-Butylbenzene 51 03/01/2023 10191035070-1301
tert-Butylbenzene 51 03/01/2023 10191025070-1301
Carbon tetrachloride 50 03/01/2023 10191005070-1301
Chlorobenzene 50 03/01/2023 10191005070-1301
Chloroethane 52 03/01/2023 10191045070-1301
Chloroform 47 03/01/2023 1019955070-1301
Chloromethane (Methyl chloride)51 03/01/2023 10191035060-1401
2-Chlorotoluene 50 03/01/2023 1019995070-1301
4-Chlorotoluene 50 03/01/2023 10191015070-1301
1,2-Dibromo-3-chloropropane (DBCP)45 03/01/2023 1019905070-1301
Dibromochloromethane 50 03/01/2023 10191005070-1301
1,2-Dibromoethane (EDB)49 03/01/2023 1019985070-1301
Dibromomethane (Methylene bromide)46 03/01/2023 1019935070-1301
trans-1,4-Dichloro-2-butene 53 03/01/2023 10191075070-1301
1,2-Dichlorobenzene 49 03/01/2023 1019985070-1301
1,3-Dichlorobenzene 50 03/01/2023 1019995070-1301
1,4-Dichlorobenzene 49 03/01/2023 1019975070-1301
Dichlorodifluoromethane 56 03/01/2023 10191125060-1401
1,1-Dichloroethane 50 03/01/2023 10191005070-1301
1,2-Dichloroethane 48 03/01/2023 1019965070-1301
1,1-Dichloroethene 53 03/01/2023 10191055070-1301
cis-1,2-Dichloroethene 48 03/01/2023 1019975070-1301
trans-1,2-Dichloroethene 51 03/01/2023 10191025070-1301
1,2-Dichloropropane 50 03/01/2023 10191005070-1301
1,3-Dichloropropane 50 03/01/2023 10191005070-1301
2,2-Dichloropropane 52 03/01/2023 10191035070-1301
1,1-Dichloropropene 50 03/01/2023 10191015070-1301
cis-1,3-Dichloropropene 50 03/01/2023 10191005070-1301
trans-1,3-Dichloropropene 51 03/01/2023 10191035070-1301
Diisopropyl ether (IPE)50 03/01/2023 10191015070-1301
Ethylbenzene 51 03/01/2023 10191015070-1301
Hexachlorobutadiene 51 03/01/2023 10191025060-1401
2-Hexanone 100 03/01/2023 101910110070-1301
Isopropylbenzene 50 03/01/2023 10191005070-1301
p-Isopropyltoluene 51 03/01/2023 10191025070-1301
Methyl tertiary butyl ether (MTBE)47 03/01/2023 1019945070-1301
Note:Calculations are performed before rounding to avoid round-off errors in calculated results
LOQ = Limit of Quantitation ND = Not detected at or above the DL
J = Estimated result < LOQ and > DL
N = Recovery is out of criteria
P = The RPD between two GC columns exceeds 40%
+ = RPD is out of criteria
_DL = Detection Limit
* = RSD is out of criteria
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)

Page 10 of 18
Volatile Organic Compounds by GC/MS - LCS
Batch:Prep Method:
Sample ID:YQ68881-002
68881 5030B
Analytical Method:8260D
Matrix:Aqueous
Parameter
Result
Q % Rec
Spike
Amount
Analysis Date
%Rec
LimitDil(ug/L)(ug/L)
4-Methyl-2-pentanone 92 03/01/2023 10199210070-1301
Methylene chloride 50 03/01/2023 10191015070-1301
Naphthalene 49 03/01/2023 1019985070-1301
n-Propylbenzene 51 03/01/2023 10191025070-1301
Styrene 50 03/01/2023 10191015070-1301
1,1,1,2-Tetrachloroethane 48 03/01/2023 1019975070-1301
1,1,2,2-Tetrachloroethane 47 03/01/2023 1019955070-1301
Tetrachloroethene 51 03/01/2023 10191015070-1301
Toluene 51 03/01/2023 10191025070-1301
1,1,2-Trichloro-1,2,2-Trifluoroethane 53 03/01/2023 10191075070-1301
1,2,3-Trichlorobenzene 51 03/01/2023 10191015070-1301
1,2,4-Trichlorobenzene 51 03/01/2023 10191015070-1301
1,1,1-Trichloroethane 51 03/01/2023 10191015070-1301
1,1,2-Trichloroethane 49 03/01/2023 1019995070-1301
Trichloroethene 50 03/01/2023 10191005070-1301
Trichlorofluoromethane 52 03/01/2023 10191045070-1301
1,2,3-Trichloropropane 46 03/01/2023 1019915070-1301
1,2,4-Trimethylbenzene 50 03/01/2023 10191005070-1301
1,3,5-Trimethylbenzene 51 03/01/2023 10191015070-1301
Vinyl chloride 53 03/01/2023 10191055070-1301
Xylenes (total)100 03/01/2023 101910110070-1301
Surrogate Q % Rec Acceptance
Limit
Bromofluorobenzene 98 70-130
1,2-Dichloroethane-d4 92 70-130
Toluene-d8 98 70-130
Note:Calculations are performed before rounding to avoid round-off errors in calculated results
LOQ = Limit of Quantitation ND = Not detected at or above the DL
J = Estimated result < LOQ and > DL
N = Recovery is out of criteria
P = The RPD between two GC columns exceeds 40%
+ = RPD is out of criteria
_DL = Detection Limit
* = RSD is out of criteria
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)

Page 11 of 18
Volatile Organic Compounds by GC/MS - MS
Batch:Prep Method:
Sample ID:YB23073-001MS
68881 5030B
Analytical Method:8260D
Matrix:Aqueous
Parameter
Result
Q % Rec
Spike
Amount
Analysis Date
%Rec
Limit
Sample
Amount
Dil(ug/L)(ug/L)(ug/L)
Acetone 290 03/01/2023 1830N4250060-140825
Benzene 240 03/01/2023 18309525070-130ND5
Bromobenzene 220 03/01/2023 18308625070-130ND5
Bromochloromethane 230 03/01/2023 18309225070-130ND5
Bromoform 160 03/01/2023 1830N6325070-130ND5
Bromomethane (Methyl bromide)250 03/01/2023 183010025070-130ND5
2-Butanone (MEK)340 03/01/2023 1830N6750070-130ND5
n-Butylbenzene 260 03/01/2023 183010225070-1308.0 5
sec-Butylbenzene 250 03/01/2023 18309925070-130ND5
tert-Butylbenzene 260 03/01/2023 183010425070-130ND5
Carbon tetrachloride 240 03/01/2023 18309725070-130ND5
Chlorobenzene 220 03/01/2023 18308925070-130ND5
Chloroethane 240 03/01/2023 18309725070-130ND5
Chloroform 230 03/01/2023 18309425070-130ND5
Chloromethane (Methyl chloride)230 03/01/2023 18309125060-140ND5
2-Chlorotoluene 240 03/01/2023 18309725070-130ND5
4-Chlorotoluene 230 03/01/2023 18309025070-130ND5
1,2-Dibromo-3-chloropropane (DBCP)210 03/01/2023 18308425070-130ND5
Dibromochloromethane 190 03/01/2023 18307825070-130ND5
1,2-Dibromoethane (EDB)220 03/01/2023 18308825070-130ND5
Dibromomethane (Methylene bromide)220 03/01/2023 18308825070-130ND5
trans-1,4-Dichloro-2-butene 160 03/01/2023 1830N6325070-130ND5
1,2-Dichlorobenzene 220 03/01/2023 18308925070-130ND5
1,3-Dichlorobenzene 230 03/01/2023 18309025070-130ND5
1,4-Dichlorobenzene 220 03/01/2023 18308925070-130ND5
Dichlorodifluoromethane 230 03/01/2023 18309225060-140ND5
1,1-Dichloroethane 230 03/01/2023 18309325070-130ND5
1,2-Dichloroethane 230 03/01/2023 18309025070-130ND5
1,1-Dichloroethene 260 03/01/2023 183010525070-130ND5
cis-1,2-Dichloroethene 240 03/01/2023 18309425070-130ND5
trans-1,2-Dichloroethene 240 03/01/2023 18309825070-130ND5
1,2-Dichloropropane 230 03/01/2023 18309025070-130ND5
1,3-Dichloropropane 220 03/01/2023 18308825070-130ND5
2,2-Dichloropropane 250 03/01/2023 183010025070-130ND5
1,1-Dichloropropene 250 03/01/2023 18309925070-130ND5
cis-1,3-Dichloropropene 220 03/01/2023 18308625070-130ND5
trans-1,3-Dichloropropene 220 03/01/2023 18308725070-130ND5
Diisopropyl ether (IPE)230 03/01/2023 18309025070-130ND5
Ethylbenzene 290 03/01/2023 18309225070-130585
Hexachlorobutadiene 250 03/01/2023 18309825060-140ND5
2-Hexanone 440 03/01/2023 18308950070-130ND5
Isopropylbenzene 240 03/01/2023 18309425070-1306.6 5
p-Isopropyltoluene 240 03/01/2023 18309725070-130ND5
Methyl tertiary butyl ether (MTBE)210 03/01/2023 18308225070-130ND5
Note:Calculations are performed before rounding to avoid round-off errors in calculated results
LOQ = Limit of Quantitation ND = Not detected at or above the DL
J = Estimated result < LOQ and > DL
N = Recovery is out of criteria
P = The RPD between two GC columns exceeds 40%
+ = RPD is out of criteria
_DL = Detection Limit
* = RSD is out of criteria
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)

Page 12 of 18
Volatile Organic Compounds by GC/MS - MS
Batch:Prep Method:
Sample ID:YB23073-001MS
68881 5030B
Analytical Method:8260D
Matrix:Aqueous
Parameter
Result
Q % Rec
Spike
Amount
Analysis Date
%Rec
Limit
Sample
Amount
Dil(ug/L)(ug/L)(ug/L)
4-Methyl-2-pentanone 430 03/01/2023 18308650070-130ND5
Methylene chloride 250 03/01/2023 183010125070-130ND5
Naphthalene 250 03/01/2023 18309325070-130205
n-Propylbenzene 270 03/01/2023 18309625070-130275
Styrene 220 03/01/2023 18309025070-130ND5
1,1,1,2-Tetrachloroethane 220 03/01/2023 18308625070-130ND5
1,1,2,2-Tetrachloroethane 210 03/01/2023 18308625070-130ND5
Tetrachloroethene 230 03/01/2023 18309425070-130ND5
Toluene 240 03/01/2023 18309325070-1307.0 5
1,1,2-Trichloro-1,2,2-Trifluoroethane 270 03/01/2023 183010625070-130ND5
1,2,3-Trichlorobenzene 230 03/01/2023 18309325070-130ND5
1,2,4-Trichlorobenzene 230 03/01/2023 18309325070-130ND5
1,1,1-Trichloroethane 250 03/01/2023 183010025070-130ND5
1,1,2-Trichloroethane 230 03/01/2023 18309225070-130ND5
Trichloroethene 230 03/01/2023 18309125070-130ND5
Trichlorofluoromethane 250 03/01/2023 18309825070-130ND5
1,2,3-Trichloropropane 210 03/01/2023 18308425070-130ND5
1,2,4-Trimethylbenzene 390 03/01/2023 18309425070-1301605
1,3,5-Trimethylbenzene 280 03/01/2023 18309325070-130445
Vinyl chloride 250 03/01/2023 183010125070-130ND5
Xylenes (total)580 03/01/2023 18309250070-1301205
Surrogate Q % Rec Acceptance
Limit
Bromofluorobenzene 82 70-130
1,2-Dichloroethane-d4 82 70-130
Toluene-d8 85 70-130
Note:Calculations are performed before rounding to avoid round-off errors in calculated results
LOQ = Limit of Quantitation ND = Not detected at or above the DL
J = Estimated result < LOQ and > DL
N = Recovery is out of criteria
P = The RPD between two GC columns exceeds 40%
+ = RPD is out of criteria
_DL = Detection Limit
* = RSD is out of criteria
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)

Page 13 of 18
Volatile Organic Compounds by GC/MS - MSD
Batch:Prep Method:
Sample ID:YB23073-001MD
68881 5030B
Analytical Method:8260D
Matrix:Aqueous
Parameter
Result
Q % Rec
Spike
Amount
Analysis Date% RPD
%Rec
Limit
% RPD
Limit
Sample
Amount
Dil(ug/L)(ug/L)(ug/L)
Acetone 490 03/01/2023 1852+82500 60-14051 20825
Benzene 240 03/01/2023 18529525070-1300.43 20ND5
Bromobenzene 220 03/01/2023 18529025070-1303.8 20ND5
Bromochloromethane 230 03/01/2023 18529325070-1301.6 20ND5
Bromoform 160 03/01/2023 1852N6525070-1303.5 20ND5
Bromomethane (Methyl bromide)230 03/01/2023 18529225070-1308.9 20ND5
2-Butanone (MEK)490 03/01/2023 1852+97500 70-13036 20ND5
n-Butylbenzene 260 03/01/2023 18529925070-1302.7 208.0 5
sec-Butylbenzene 250 03/01/2023 18529925070-1300.14 20ND5
tert-Butylbenzene 260 03/01/2023 185210525070-1301.3 20ND5
Carbon tetrachloride 250 03/01/2023 18529825070-1301.5 20ND5
Chlorobenzene 220 03/01/2023 18528925070-1300.91 20ND5
Chloroethane 220 03/01/2023 18528825070-1309.5 20ND5
Chloroform 230 03/01/2023 18529425070-1300.44 20ND5
Chloromethane (Methyl chloride)200 03/01/2023 18528125060-14011 20ND5
2-Chlorotoluene 250 03/01/2023 185210025070-1302.7 20ND5
4-Chlorotoluene 230 03/01/2023 18529225070-1301.7 20ND5
1,2-Dibromo-3-chloropropane (DBCP)210 03/01/2023 18528525070-1300.80 20ND5
Dibromochloromethane 200 03/01/2023 18527925070-1301.9 20ND5
1,2-Dibromoethane (EDB)220 03/01/2023 18528725070-1300.14 20ND5
Dibromomethane (Methylene bromide)230 03/01/2023 18529125070-1303.7 20ND5
trans-1,4-Dichloro-2-butene 160 03/01/2023 1852N6225070-1301.6 20ND5
1,2-Dichlorobenzene 220 03/01/2023 18528925070-1300.59 20ND5
1,3-Dichlorobenzene 220 03/01/2023 18528925070-1301.1 20ND5
1,4-Dichlorobenzene 220 03/01/2023 18528725070-1301.6 20ND5
Dichlorodifluoromethane 210 03/01/2023 18528425060-1409.9 20ND5
1,1-Dichloroethane 240 03/01/2023 18529525070-1301.3 20ND5
1,2-Dichloroethane 230 03/01/2023 18529125070-1300.78 20ND5
1,1-Dichloroethene 260 03/01/2023 185210225070-1302.3 20ND5
cis-1,2-Dichloroethene 230 03/01/2023 18529425070-1300.84 20ND5
trans-1,2-Dichloroethene 240 03/01/2023 18529825070-1300.30 20ND5
1,2-Dichloropropane 230 03/01/2023 18529225070-1301.4 20ND5
1,3-Dichloropropane 220 03/01/2023 18528825070-1300.14 20ND5
2,2-Dichloropropane 250 03/01/2023 18529925070-1301.0 20ND5
1,1-Dichloropropene 250 03/01/2023 18529925070-1300.51 20ND5
cis-1,3-Dichloropropene 220 03/01/2023 18528725070-1300.40 20ND5
trans-1,3-Dichloropropene 210 03/01/2023 18528625070-1301.2 20ND5
Diisopropyl ether (IPE)230 03/01/2023 18529225070-1301.5 20ND5
Ethylbenzene 290 03/01/2023 18529125070-1301.1 20585
Hexachlorobutadiene 230 03/01/2023 18529125060-1407.8 20ND5
2-Hexanone 460 03/01/2023 18529250070-1303.8 20ND5
Isopropylbenzene 240 03/01/2023 18529425070-1300.43 206.6 5
p-Isopropyltoluene 240 03/01/2023 18529625070-1301.6 20ND5
Methyl tertiary butyl ether (MTBE)220 03/01/2023 18528725070-1306.0 20ND5
Note:Calculations are performed before rounding to avoid round-off errors in calculated results
LOQ = Limit of Quantitation ND = Not detected at or above the DL
J = Estimated result < LOQ and > DL
N = Recovery is out of criteria
P = The RPD between two GC columns exceeds 40%
+ = RPD is out of criteria
_DL = Detection Limit
* = RSD is out of criteria
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Page 14 of 18
Volatile Organic Compounds by GC/MS - MSD
Batch:Prep Method:
Sample ID:YB23073-001MD
68881 5030B
Analytical Method:8260D
Matrix:Aqueous
Parameter
Result
Q % Rec
Spike
Amount
Analysis Date% RPD
%Rec
Limit
% RPD
Limit
Sample
Amount
Dil(ug/L)(ug/L)(ug/L)
4-Methyl-2-pentanone 460 03/01/2023 18529350070-1307.3 20ND5
Methylene chloride 240 03/01/2023 18529625070-1305.0 20ND5
Naphthalene 230 03/01/2023 18528425070-1308.9 20205
n-Propylbenzene 270 03/01/2023 18529725070-1301.1 20275
Styrene 230 03/01/2023 18529025070-1300.23 20ND5
1,1,1,2-Tetrachloroethane 220 03/01/2023 18528925070-1302.6 20ND5
1,1,2,2-Tetrachloroethane 230 03/01/2023 18529125070-1306.6 20ND5
Tetrachloroethene 230 03/01/2023 18529325070-1300.12 20ND5
Toluene 240 03/01/2023 18529325070-1300.17 207.0 5
1,1,2-Trichloro-1,2,2-Trifluoroethane 260 03/01/2023 185210225070-1303.8 20ND5
1,2,3-Trichlorobenzene 210 03/01/2023 18528225070-13012 20ND5
1,2,4-Trichlorobenzene 210 03/01/2023 18528625070-1308.4 20ND5
1,1,1-Trichloroethane 250 03/01/2023 18529925070-1300.79 20ND5
1,1,2-Trichloroethane 230 03/01/2023 18529125070-1300.55 20ND5
Trichloroethene 230 03/01/2023 18529325070-1301.8 20ND5
Trichlorofluoromethane 230 03/01/2023 18529125070-1307.8 20ND5
1,2,3-Trichloropropane 220 03/01/2023 18528825070-1304.4 20ND5
1,2,4-Trimethylbenzene 390 03/01/2023 18529225070-1301.2 201605
1,3,5-Trimethylbenzene 280 03/01/2023 18529525070-1301.9 20445
Vinyl chloride 230 03/01/2023 18529425070-1307.2 20ND5
Xylenes (total)580 03/01/2023 18529150070-1301.4 201205
Surrogate Q % Rec Acceptance
Limit
Bromofluorobenzene 82 70-130
1,2-Dichloroethane-d4 85 70-130
Toluene-d8 85 70-130
Note:Calculations are performed before rounding to avoid round-off errors in calculated results
LOQ = Limit of Quantitation ND = Not detected at or above the DL
J = Estimated result < LOQ and > DL
N = Recovery is out of criteria
P = The RPD between two GC columns exceeds 40%
+ = RPD is out of criteria
_DL = Detection Limit
* = RSD is out of criteria
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
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Page 15 of 18
Chain of Custody
and
Miscellaneous Documents
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Page 16 of 18
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PACE ANALYTICAL SERVICES, LLC

106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)

Page 18 of 18

APPENDIX C
Laboratory Data –
May 19, 2023 Sampling Event

The electronic signature above is the equivalent of a handwritten signature.
This report shall not be reproduced,except in its entirety,without the written approval of Pace Analytical Services,LLC.
Pace Analytical Services,LLC (formerly Shealy Environmental Services,Inc.)
106 Vantage Point Drive West Columbia,SC 29172
Tel:[phone] Fax:[phone] www.pacelabs.com
Report of Analysis
Bunnell-Lammons Engineering,Inc.
6004 Ponders Court
Greenville,SC 29615
Attention:Andy Alexander
Project Name:MB Haynes Corp.
Project Number:5293-24
Lot Number:YE22036
Date Completed:06/07/2023
06/07/2023 2:52 PM
Approved and released by:
Project Manager II:Lucas Odom
Page 1 of 14
PACE ANALYTICAL SERVICES,LLC
SC DHEC No:32010001 NELAC No:E87653 NC DENR No:329 NC Field Parameters No:5639
Pace Analytical Services,LLC (formerly Shealy Environmetal Services,Inc.)
106 Vantage Point Drive West Columbia,SC 29172 [phone] Fax [phone] www.pacelabs.com
Case Narrative
Bunnell-Lammons Engineering,Inc.
Lot Number:YE22036
This Report of Analysis contains the analytical result(s)for the sample(s)listed on the Sample Summary
following this Case Narrative.The sample receiving date is documented in the header information
associated with each sample.
All results listed in this report relate only to the samples that are contained within this report.Where
sampling is conducted by the client,results relate to the accuracy of the information provided,and as the
samples are received.
Sample receipt,sample analysis,and data review have been performed in accordance with the most
current approved The NELAC Institute (TNI)standards,the Pace Analytical Services,LLC ("Pace")
Laboratory Quality Manual,standard operating procedures (SOPs),and Pace policies.Any exceptions to
the TNI standards,the Laboratory Quality Manual,SOPs or policies are qualified on the results page or
discussed below.
Pace is a TNI accredited laboratory;however,the following analyses are currently not listed on our TNI
scope of accreditation:Drinking Water:VOC (excluding BTEX,MTBE,Naphthalene,&1,2-
dichloroethane)EPA 524.2,E.coli and Total coliforms SM 9223 B-2004,Solid Chemical Material:TOC
Walkley-Black,Biological Tissue:All,Non-Potable Water:SGT-HEM EPA 1664B,Silica EPA 200.7,
Boron,Calcium,Silicon,Strontium EPA 200.8,Bicarbonate,Carbonate,and Hydroxide Alkalinity SM 2320
B-2011,SM 9221 C E-2006 &SM 9222D-2006,Strontium SW-846 6010D,VOC SM 6200 B-2011,Fecal
Coliform Colilert-18.
If you have any questions regarding this report,please contact the Pace Project Manager listed on the
cover page.
VOCs by GC/MS
The laboratory control sample (LCS)for analytical batch 76517 exceeded acceptance criteria for 2-
Butanone and 2,2-Dichloropropane.These analytes were biased high and were not detected in the
samples affected.
Page 2 of 14
PACE ANALYTICAL SERVICES, LLC
Sample Summary
Bunnell-Lammons Engineering, Inc.
Lot Number: YE22036

Sample Number Sample ID Matrix Date Sampled Date Received
001 05/19/2023 1235MW-28 Aqueous 05/22/2023
(1 sample)
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Page 3 of 14
PACE ANALYTICAL SERVICES, LLC
Detection Summary
Bunnell-Lammons Engineering, Inc.
Lot Number: YE22036

Sample Sample ID Matrix Parameter Method Result Q Units Page
001 MW-28 Aqueous Benzene 8260D 1900 ug/L 5
001 MW-28 Aqueous Ethylbenzene 8260D 1100 ug/L 6
001 MW-28 Aqueous Isopropylbenzene 8260D 42 J ug/L 6
001 MW-28 Aqueous Naphthalene 8260D 140 ug/L 7
001 MW-28 Aqueous n-Propylbenzene 8260D 120 ug/L 7
001 MW-28 Aqueous Toluene 8260D 8600 ug/L 7
001 MW-28 Aqueous Trichloroethene 8260D 21 J ug/L 7
001 MW-28 Aqueous 1,2,4-Trimethylbenzene 8260D 840 ug/L 7
001 MW-28 Aqueous 1,3,5-Trimethylbenzene 8260D 240 ug/L 7
001 MW-28 Aqueous Xylenes (total)8260D 3900 ug/L 7
(10 detections)
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Description:Matrix:
Date Received:
Client:Laboratory ID:
Date Sampled:
Bunnell-Lammons Engineering, Inc.
MW-28
YE22036-001
05/19/2023 1235
05/22/2023
Aqueous
Volatile Organic Compounds by GC/MS
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 5030B 8260D 50 05/31/2023 0542 CDA 76517
AnalyticalCAS
Parameter Number Method Result Q LOQ Units Run DL
Acetone 67-64-1 8260D ND 1ug/L2501000
Benzene 71-43-2 8260D 1900 1ug/L2050
Bromobenzene 108-86-1 8260D ND 1ug/L2050
Bromochloromethane 74-97-5 8260D ND 1ug/L2050
Bromoform 75-25-2 8260D ND 1ug/L2050
Bromomethane (Methyl bromide)74-83-9 8260D ND 1ug/L20100
2-Butanone (MEK)78-93-3 8260D ND L 1ug/L100500
n-Butylbenzene 104-51-8 8260D ND 1ug/L2050
sec-Butylbenzene 135-98-8 8260D ND 1ug/L2050
tert-Butylbenzene 98-06-6 8260D ND 1ug/L2050
Carbon tetrachloride 56-23-5 8260D ND 1ug/L2050
Chlorobenzene 108-90-7 8260D ND 1ug/L2050
Chloroethane 75-00-3 8260D ND 1ug/L20100
Chloroform 67-66-3 8260D ND 1ug/L2050
Chloromethane (Methyl chloride)74-87-3 8260D ND 1ug/L2550
2-Chlorotoluene 95-49-8 8260D ND 1ug/L2050
4-Chlorotoluene 106-43-4 8260D ND 1ug/L2050
1,2-Dibromo-3-chloropropane (DBCP)96-12-8 8260D ND 1ug/L2050
Dibromochloromethane 124-48-1 8260D ND 1ug/L2050
1,2-Dibromoethane (EDB)106-93-4 8260D ND 1ug/L2050
Dibromomethane (Methylene bromide)74-95-3 8260D ND 1ug/L2050
trans-1,4-Dichloro-2-butene 110-57-6 8260D ND 1ug/L25100
1,2-Dichlorobenzene 95-50-1 8260D ND 1ug/L2050
1,3-Dichlorobenzene 541-73-1 8260D ND 1ug/L2050
1,4-Dichlorobenzene 106-46-7 8260D ND 1ug/L2050
Dichlorodifluoromethane 75-71-8 8260D ND 1ug/L30100
1,1-Dichloroethane 75-34-3 8260D ND 1ug/L2050
1,2-Dichloroethane 107-06-2 8260D ND 1ug/L2050
1,1-Dichloroethene 75-35-4 8260D ND 1ug/L2050
cis-1,2-Dichloroethene 156-59-2 8260D ND 1ug/L2050
trans-1,2-Dichloroethene 156-60-5 8260D ND 1ug/L2050
1,2-Dichloropropane 78-87-5 8260D ND 1ug/L2050
1,3-Dichloropropane 142-28-9 8260D ND 1ug/L2050
2,2-Dichloropropane 594-20-7 8260D ND L 1ug/L2050
1,1-Dichloropropene 563-58-6 8260D ND 1ug/L20100
cis-1,3-Dichloropropene 10061-01-5 8260D ND 1ug/L2050
trans-1,3-Dichloropropene 10061-02-6 8260D ND 1ug/L2050
Diisopropyl ether (IPE)108-20-3 8260D ND 1ug/L2050
Ethylbenzene 100-41-4 8260D 1100 1ug/L2050
Hexachlorobutadiene 87-68-3 8260D ND 1ug/L2050
J = Estimated result < LOQ and > DL_
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range
P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria
H = Out of holding time
Q = Surrogate failure
L = LCS/LCSD failure
S = MS/MSD failure
DL = Detection Limit
W = Reported on wet weight basis
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
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Page 5 of 14
Description:Matrix:
Date Received:
Client:Laboratory ID:
Date Sampled:
Bunnell-Lammons Engineering, Inc.
MW-28
YE22036-001
05/19/2023 1235
05/22/2023
Aqueous
Volatile Organic Compounds by GC/MS
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 5030B 8260D 50 05/31/2023 0542 CDA 76517
AnalyticalCAS
Parameter Number Method Result Q LOQ Units Run DL
2-Hexanone 591-78-6 8260D ND 1ug/L100500
Isopropylbenzene 98-82-8 8260D 42 J 1ug/L2050
p-Isopropyltoluene 99-87-6 8260D ND 1ug/L2050
Methyl tertiary butyl ether (MTBE)1634-04-4 8260D ND 1ug/L2050
4-Methyl-2-pentanone 108-10-1 8260D ND 1ug/L100500
Methylene chloride 75-09-2 8260D ND 1ug/L2050
Naphthalene 91-20-3 8260D 140 1ug/L2050
n-Propylbenzene 103-65-1 8260D 120 1ug/L2050
Styrene 100-42-5 8260D ND 1ug/L2150
1,1,1,2-Tetrachloroethane 630-20-6 8260D ND 1ug/L2050
1,1,2,2-Tetrachloroethane 79-34-5 8260D ND 1ug/L2050
Tetrachloroethene 127-18-4 8260D ND 1ug/L2050
Toluene 108-88-3 8260D 8600 1ug/L2050
1,1,2-Trichloro-1,2,2-Trifluoroethane 76-13-1 8260D ND 1ug/L2150
1,2,3-Trichlorobenzene 87-61-6 8260D ND 1ug/L2050
1,2,4-Trichlorobenzene 120-82-1 8260D ND 1ug/L2050
1,1,1-Trichloroethane 71-55-6 8260D ND 1ug/L2050
1,1,2-Trichloroethane 79-00-5 8260D ND 1ug/L2050
Trichloroethene 79-01-6 8260D 21 J 1ug/L2050
Trichlorofluoromethane 75-69-4 8260D ND 1ug/L2050
1,2,3-Trichloropropane 96-18-4 8260D ND 1ug/L2050
1,2,4-Trimethylbenzene 95-63-6 8260D 840 1ug/L2050
1,3,5-Trimethylbenzene 108-67-8 8260D 240 1ug/L2050
Vinyl chloride 75-01-4 8260D ND 1ug/L2050
Xylenes (total)1330-20-7 8260D 3900 1ug/L2050
AcceptanceRun 1
Surrogate Q % Recovery Limits
Bromofluorobenzene 100 70-130
1,2-Dichloroethane-d4 99 70-130
Toluene-d8 98 70-130
J = Estimated result < LOQ and > DL_
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range
P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria
H = Out of holding time
Q = Surrogate failure
L = LCS/LCSD failure
S = MS/MSD failure
DL = Detection Limit
W = Reported on wet weight basis
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Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)

Page 6 of 14
QC Summary
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Page 7 of 14
Volatile Organic Compounds by GC/MS - MB
Batch:Prep Method:
Sample ID:YQ76517-001
76517 5030B
Analytical Method:8260D
Matrix:Aqueous
Parameter Result Q LOQ DL Units Analysis DateDil
Acetone ND 05/30/2023 2209205.0 ug/L1
Benzene ND 05/30/2023 22091.0 0.40 ug/L1
Bromobenzene ND 05/30/2023 22091.0 0.40 ug/L1
Bromochloromethane ND 05/30/2023 22091.0 0.40 ug/L1
Bromoform ND 05/30/2023 22091.0 0.40 ug/L1
Bromomethane (Methyl bromide)ND 05/30/2023 22092.0 0.40 ug/L1
2-Butanone (MEK)ND 05/30/2023 2209102.0 ug/L1
n-Butylbenzene ND 05/30/2023 22091.0 0.40 ug/L1
sec-Butylbenzene ND 05/30/2023 22091.0 0.40 ug/L1
tert-Butylbenzene ND 05/30/2023 22091.0 0.40 ug/L1
Carbon tetrachloride ND 05/30/2023 22091.0 0.40 ug/L1
Chlorobenzene ND 05/30/2023 22091.0 0.40 ug/L1
Chloroethane ND 05/30/2023 22092.0 0.40 ug/L1
Chloroform ND 05/30/2023 22091.0 0.40 ug/L1
Chloromethane (Methyl chloride)ND 05/30/2023 22091.0 0.50 ug/L1
2-Chlorotoluene ND 05/30/2023 22091.0 0.40 ug/L1
4-Chlorotoluene ND 05/30/2023 22091.0 0.40 ug/L1
1,2-Dibromo-3-chloropropane (DBCP)ND 05/30/2023 22091.0 0.40 ug/L1
Dibromochloromethane ND 05/30/2023 22091.0 0.40 ug/L1
1,2-Dibromoethane (EDB)ND 05/30/2023 22091.0 0.40 ug/L1
Dibromomethane (Methylene bromide)ND 05/30/2023 22091.0 0.40 ug/L1
trans-1,4-Dichloro-2-butene ND 05/30/2023 22092.0 0.50 ug/L1
1,2-Dichlorobenzene ND 05/30/2023 22091.0 0.40 ug/L1
1,3-Dichlorobenzene ND 05/30/2023 22091.0 0.40 ug/L1
1,4-Dichlorobenzene ND 05/30/2023 22091.0 0.40 ug/L1
Dichlorodifluoromethane ND 05/30/2023 22092.0 0.60 ug/L1
1,1-Dichloroethane ND 05/30/2023 22091.0 0.40 ug/L1
1,2-Dichloroethane ND 05/30/2023 22091.0 0.40 ug/L1
1,1-Dichloroethene ND 05/30/2023 22091.0 0.40 ug/L1
cis-1,2-Dichloroethene ND 05/30/2023 22091.0 0.40 ug/L1
trans-1,2-Dichloroethene ND 05/30/2023 22091.0 0.40 ug/L1
1,2-Dichloropropane ND 05/30/2023 22091.0 0.40 ug/L1
1,3-Dichloropropane ND 05/30/2023 22091.0 0.40 ug/L1
2,2-Dichloropropane ND 05/30/2023 22091.0 0.40 ug/L1
1,1-Dichloropropene ND 05/30/2023 22092.0 0.40 ug/L1
cis-1,3-Dichloropropene ND 05/30/2023 22091.0 0.40 ug/L1
trans-1,3-Dichloropropene ND 05/30/2023 22091.0 0.40 ug/L1
Diisopropyl ether (IPE)ND 05/30/2023 22091.0 0.40 ug/L1
Ethylbenzene ND 05/30/2023 22091.0 0.40 ug/L1
Hexachlorobutadiene ND 05/30/2023 22091.0 0.40 ug/L1
2-Hexanone ND 05/30/2023 2209102.0 ug/L1
Isopropylbenzene ND 05/30/2023 22091.0 0.40 ug/L1
p-Isopropyltoluene ND 05/30/2023 22091.0 0.40 ug/L1
Methyl tertiary butyl ether (MTBE)ND 05/30/2023 22091.0 0.40 ug/L1
Note:Calculations are performed before rounding to avoid round-off errors in calculated results
LOQ = Limit of Quantitation ND = Not detected at or above the DL
J = Estimated result < LOQ and > DL
N = Recovery is out of criteria
P = The RPD between two GC columns exceeds 40%
+ = RPD is out of criteria
_DL = Detection Limit
* = RSD is out of criteria
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Page 8 of 14
Volatile Organic Compounds by GC/MS - MB
Batch:Prep Method:
Sample ID:YQ76517-001
76517 5030B
Analytical Method:8260D
Matrix:Aqueous
Parameter Result Q LOQ DL Units Analysis DateDil
4-Methyl-2-pentanone ND 05/30/2023 2209102.0 ug/L1
Methylene chloride ND 05/30/2023 22091.0 0.40 ug/L1
Naphthalene ND 05/30/2023 22091.0 0.40 ug/L1
n-Propylbenzene ND 05/30/2023 22091.0 0.40 ug/L1
Styrene ND 05/30/2023 22091.0 0.41 ug/L1
1,1,1,2-Tetrachloroethane ND 05/30/2023 22091.0 0.40 ug/L1
1,1,2,2-Tetrachloroethane ND 05/30/2023 22091.0 0.40 ug/L1
Tetrachloroethene ND 05/30/2023 22091.0 0.40 ug/L1
Toluene ND 05/30/2023 22091.0 0.40 ug/L1
1,1,2-Trichloro-1,2,2-Trifluoroethane ND 05/30/2023 22091.0 0.42 ug/L1
1,2,3-Trichlorobenzene ND 05/30/2023 22091.0 0.40 ug/L1
1,2,4-Trichlorobenzene ND 05/30/2023 22091.0 0.40 ug/L1
1,1,1-Trichloroethane ND 05/30/2023 22091.0 0.40 ug/L1
1,1,2-Trichloroethane ND 05/30/2023 22091.0 0.40 ug/L1
Trichloroethene ND 05/30/2023 22091.0 0.40 ug/L1
Trichlorofluoromethane ND 05/30/2023 22091.0 0.40 ug/L1
1,2,3-Trichloropropane ND 05/30/2023 22091.0 0.40 ug/L1
1,2,4-Trimethylbenzene ND 05/30/2023 22091.0 0.40 ug/L1
1,3,5-Trimethylbenzene ND 05/30/2023 22091.0 0.40 ug/L1
Vinyl chloride ND 05/30/2023 22091.0 0.40 ug/L1
Xylenes (total)ND 05/30/2023 22091.0 0.40 ug/L1
Surrogate Q % Rec Acceptance
Limit
Bromofluorobenzene 98 70-130
1,2-Dichloroethane-d4 100 70-130
Toluene-d8 99 70-130
Note:Calculations are performed before rounding to avoid round-off errors in calculated results
LOQ = Limit of Quantitation ND = Not detected at or above the DL
J = Estimated result < LOQ and > DL
N = Recovery is out of criteria
P = The RPD between two GC columns exceeds 40%
+ = RPD is out of criteria
_DL = Detection Limit
* = RSD is out of criteria
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Page 9 of 14
Volatile Organic Compounds by GC/MS - LCS
Batch:Prep Method:
Sample ID:YQ76517-002
76517 5030B
Analytical Method:8260D
Matrix:Aqueous
Parameter
Result
Q % Rec
Spike
Amount
Analysis Date
%Rec
LimitDil(ug/L)(ug/L)
Acetone 130 05/30/2023 194813110060-1401
Benzene 56 05/30/2023 19481125070-1301
Bromobenzene 52 05/30/2023 19481045070-1301
Bromochloromethane 55 05/30/2023 19481105070-1301
Bromoform 56 05/30/2023 19481135070-1301
Bromomethane (Methyl bromide)60 05/30/2023 19481215070-1301
2-Butanone (MEK)140 05/30/2023 1948N14010070-1301
n-Butylbenzene 56 05/30/2023 19481125070-1301
sec-Butylbenzene 55 05/30/2023 19481115070-1301
tert-Butylbenzene 56 05/30/2023 19481125070-1301
Carbon tetrachloride 56 05/30/2023 19481135070-1301
Chlorobenzene 52 05/30/2023 19481055070-1301
Chloroethane 56 05/30/2023 19481125070-1301
Chloroform 55 05/30/2023 19481105070-1301
Chloromethane (Methyl chloride)52 05/30/2023 19481045060-1401
2-Chlorotoluene 53 05/30/2023 19481065070-1301
4-Chlorotoluene 55 05/30/2023 19481095070-1301
1,2-Dibromo-3-chloropropane (DBCP)49 05/30/2023 1948975070-1301
Dibromochloromethane 56 05/30/2023 19481125070-1301
1,2-Dibromoethane (EDB)53 05/30/2023 19481075070-1301
Dibromomethane (Methylene bromide)53 05/30/2023 19481065070-1301
trans-1,4-Dichloro-2-butene 58 05/30/2023 19481165070-1301
1,2-Dichlorobenzene 50 05/30/2023 19481005070-1301
1,3-Dichlorobenzene 51 05/30/2023 19481035070-1301
1,4-Dichlorobenzene 54 05/30/2023 19481075070-1301
Dichlorodifluoromethane 59 05/30/2023 19481185060-1401
1,1-Dichloroethane 56 05/30/2023 19481125070-1301
1,2-Dichloroethane 54 05/30/2023 19481085070-1301
1,1-Dichloroethene 58 05/30/2023 19481155070-1301
cis-1,2-Dichloroethene 57 05/30/2023 19481135070-1301
trans-1,2-Dichloroethene 56 05/30/2023 19481125070-1301
1,2-Dichloropropane 54 05/30/2023 19481075070-1301
1,3-Dichloropropane 53 05/30/2023 19481065070-1301
2,2-Dichloropropane 67 05/30/2023 1948N1345070-1301
1,1-Dichloropropene 56 05/30/2023 19481125070-1301
cis-1,3-Dichloropropene 58 05/30/2023 19481155070-1301
trans-1,3-Dichloropropene 56 05/30/2023 19481125070-1301
Diisopropyl ether (IPE)56 05/30/2023 19481115070-1301
Ethylbenzene 54 05/30/2023 19481085070-1301
Hexachlorobutadiene 49 05/30/2023 1948985060-1401
2-Hexanone 100 05/30/2023 194810310070-1301
Isopropylbenzene 54 05/30/2023 19481085070-1301
p-Isopropyltoluene 55 05/30/2023 19481105070-1301
Methyl tertiary butyl ether (MTBE)57 05/30/2023 19481145070-1301
Note:Calculations are performed before rounding to avoid round-off errors in calculated results
LOQ = Limit of Quantitation ND = Not detected at or above the DL
J = Estimated result < LOQ and > DL
N = Recovery is out of criteria
P = The RPD between two GC columns exceeds 40%
+ = RPD is out of criteria
_DL = Detection Limit
* = RSD is out of criteria
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Page 10 of 14
Volatile Organic Compounds by GC/MS - LCS
Batch:Prep Method:
Sample ID:YQ76517-002
76517 5030B
Analytical Method:8260D
Matrix:Aqueous
Parameter
Result
Q % Rec
Spike
Amount
Analysis Date
%Rec
LimitDil(ug/L)(ug/L)
4-Methyl-2-pentanone 95 05/30/2023 19489510070-1301
Methylene chloride 64 05/30/2023 19481285070-1301
Naphthalene 48 05/30/2023 1948975070-1301
n-Propylbenzene 57 05/30/2023 19481145070-1301
Styrene 55 05/30/2023 19481105070-1301
1,1,1,2-Tetrachloroethane 55 05/30/2023 19481105070-1301
1,1,2,2-Tetrachloroethane 52 05/30/2023 19481045070-1301
Tetrachloroethene 54 05/30/2023 19481085070-1301
Toluene 52 05/30/2023 19481045070-1301
1,1,2-Trichloro-1,2,2-Trifluoroethane 61 05/30/2023 19481215070-1301
1,2,3-Trichlorobenzene 47 05/30/2023 1948955070-1301
1,2,4-Trichlorobenzene 56 05/30/2023 19481125070-1301
1,1,1-Trichloroethane 55 05/30/2023 19481105070-1301
1,1,2-Trichloroethane 52 05/30/2023 19481055070-1301
Trichloroethene 54 05/30/2023 19481075070-1301
Trichlorofluoromethane 60 05/30/2023 19481195070-1301
1,2,3-Trichloropropane 52 05/30/2023 19481045070-1301
1,2,4-Trimethylbenzene 55 05/30/2023 19481095070-1301
1,3,5-Trimethylbenzene 56 05/30/2023 19481115070-1301
Vinyl chloride 53 05/30/2023 19481065070-1301
Xylenes (total)100 05/30/2023 194810410070-1301
Surrogate Q % Rec Acceptance
Limit
Bromofluorobenzene 92 70-130
1,2-Dichloroethane-d4 95 70-130
Toluene-d8 96 70-130
Note:Calculations are performed before rounding to avoid round-off errors in calculated results
LOQ = Limit of Quantitation ND = Not detected at or above the DL
J = Estimated result < LOQ and > DL
N = Recovery is out of criteria
P = The RPD between two GC columns exceeds 40%
+ = RPD is out of criteria
_DL = Detection Limit
* = RSD is out of criteria
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Page 11 of 14
Chain of Custody
and
Miscellaneous Documents
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Page 12 of 14
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PACE ANALYTICAL SERVICES, LLC

106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)

Page 14 of 14

APPENDIX D
Laboratory Data –
July 19, 2023 Sampling Event

The electronic signature above is the equivalent of a handwritten signature.
This report shall not be reproduced,except in its entirety,without the written approval of Pace Analytical Services,LLC.
Pace Analytical Services,LLC (formerly Shealy Environmental Services,Inc.)
106 Vantage Point Drive West Columbia,SC 29172
Tel:[phone] Fax:[phone] www.pacelabs.com
Report of Analysis
Bunnell-Lammons Engineering,Inc.
6004 Ponders Court
Greenville,SC 29615
Attention:Andy Alexander
Project Name:MB Haynes Corp.
Lot Number:YG21032
Date Completed:08/02/2023
08/03/2023 9:49 AM
Approved and released by:
Project Manager II:Lucas Odom
Page 1 of 18
PACE ANALYTICAL SERVICES,LLC
SC DHEC No:32010001 NELAC No:E87653 NC DENR No:329 NC Field Parameters No:5639
Pace Analytical Services,LLC (formerly Shealy Environmetal Services,Inc.)
106 Vantage Point Drive West Columbia,SC 29172 [phone] Fax [phone] www.pacelabs.com
Case Narrative
Bunnell-Lammons Engineering,Inc.
Lot Number:YG21032
This Report of Analysis contains the analytical result(s)for the sample(s)listed on the Sample Summary
following this Case Narrative.The sample receiving date is documented in the header information
associated with each sample.
All results listed in this report relate only to the samples that are contained within this report.Where
sampling is conducted by the client,results relate to the accuracy of the information provided,and as the
samples are received.
Sample receipt,sample analysis,and data review have been performed in accordance with the most
current approved The NELAC Institute (TNI)standards,the Pace Analytical Services,LLC ("Pace")
Laboratory Quality Manual,standard operating procedures (SOPs),and Pace policies.Any exceptions to
the TNI standards,the Laboratory Quality Manual,SOPs or policies are qualified on the results page or
discussed below.
Pace is a TNI accredited laboratory;however,the following analyses are currently not listed on our TNI
scope of accreditation:Drinking Water:VOC (excluding BTEX,MTBE,Naphthalene,&1,2-
dichloroethane)EPA 524.2,E.coli and Total coliforms SM 9223 B-2004,Solid Chemical Material:TOC
Walkley-Black,Biological Tissue:All,Non-Potable Water:SGT-HEM EPA 1664B,Silica EPA 200.7,
Boron,Calcium,Silicon,Strontium EPA 200.8,Bicarbonate,Carbonate,and Hydroxide Alkalinity SM 2320
B-2011,SM 9221 C E-2006 &SM 9222D-2006,Strontium SW-846 6010D,VOC SM 6200 B-2011,Fecal
Coliform Colilert-18,PFAS by Isotope Dilution SOP.
Pace is a DoD/DoE and TNI accredited laboratory;however,Pace is not accredited for PFAS Direct
Aqueous Injection or Method D8421.
If you have any questions regarding this report,please contact the Pace Project Manager listed on the
cover page.
Page 2 of 18
PACE ANALYTICAL SERVICES, LLC
Sample Summary
Bunnell-Lammons Engineering, Inc.
Lot Number: YG21032

Sample Number Sample ID Matrix Date Sampled Date Received
001 07/19/2023 1030MW-28 Aqueous 07/21/2023
(1 sample)
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Page 3 of 18
PACE ANALYTICAL SERVICES, LLC
Detection Summary
Bunnell-Lammons Engineering, Inc.
Lot Number: YG21032

Sample Sample ID Matrix Parameter Method Result Q Units Page
001 MW-28 Aqueous Benzene 8260D 2900 ug/L 5
001 MW-28 Aqueous Ethylbenzene 8260D 1700 ug/L 6
001 MW-28 Aqueous Isopropylbenzene 8260D 89 J ug/L 6
001 MW-28 Aqueous Naphthalene 8260D 250 ug/L 7
001 MW-28 Aqueous n-Propylbenzene 8260D 150 ug/L 7
001 MW-28 Aqueous Styrene 8260D 120 ug/L 7
001 MW-28 Aqueous Toluene 8260D 15000 S ug/L 7
001 MW-28 Aqueous 1,2,4-Trimethylbenzene 8260D 1200 ug/L 7
001 MW-28 Aqueous 1,3,5-Trimethylbenzene 8260D 300 ug/L 7
001 MW-28 Aqueous Xylenes (total)8260D 7000 ug/L 7
(10 detections)
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Page 4 of 18
Description:Matrix:
Date Received:
Client:Laboratory ID:
Date Sampled:
Bunnell-Lammons Engineering, Inc.
MW-28
YG21032-001
07/19/2023 1030
07/21/2023
Aqueous
Volatile Organic Compounds by GC/MS
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 5030B 8260D 100 07/26/2023 0555 CDA 80861
AnalyticalCAS
Parameter Number Method Result Q LOQ Units Run DL
Acetone 67-64-1 8260D ND S 1ug/L5002000
Benzene 71-43-2 8260D 2900 1ug/L40100
Bromobenzene 108-86-1 8260D ND 1ug/L40100
Bromochloromethane 74-97-5 8260D ND 1ug/L40100
Bromoform 75-25-2 8260D ND 1ug/L40100
Bromomethane (Methyl bromide)74-83-9 8260D ND 1ug/L40200
2-Butanone (MEK)78-93-3 8260D ND 1ug/L2001000
n-Butylbenzene 104-51-8 8260D ND 1ug/L40100
sec-Butylbenzene 135-98-8 8260D ND 1ug/L40100
tert-Butylbenzene 98-06-6 8260D ND 1ug/L40100
Carbon tetrachloride 56-23-5 8260D ND 1ug/L40100
Chlorobenzene 108-90-7 8260D ND 1ug/L40100
Chloroethane 75-00-3 8260D ND 1ug/L40200
Chloroform 67-66-3 8260D ND 1ug/L40100
Chloromethane (Methyl chloride)74-87-3 8260D ND 1ug/L50100
2-Chlorotoluene 95-49-8 8260D ND 1ug/L40100
4-Chlorotoluene 106-43-4 8260D ND 1ug/L40100
1,2-Dibromo-3-chloropropane (DBCP)96-12-8 8260D ND 1ug/L40100
Dibromochloromethane 124-48-1 8260D ND 1ug/L40100
1,2-Dibromoethane (EDB)106-93-4 8260D ND 1ug/L40100
Dibromomethane (Methylene bromide)74-95-3 8260D ND 1ug/L40100
trans-1,4-Dichloro-2-butene 110-57-6 8260D ND 1ug/L50200
1,2-Dichlorobenzene 95-50-1 8260D ND 1ug/L40100
1,3-Dichlorobenzene 541-73-1 8260D ND 1ug/L40100
1,4-Dichlorobenzene 106-46-7 8260D ND 1ug/L40100
Dichlorodifluoromethane 75-71-8 8260D ND 1ug/L60200
1,1-Dichloroethane 75-34-3 8260D ND 1ug/L40100
1,2-Dichloroethane 107-06-2 8260D ND 1ug/L40100
1,1-Dichloroethene 75-35-4 8260D ND 1ug/L40100
cis-1,2-Dichloroethene 156-59-2 8260D ND 1ug/L40100
trans-1,2-Dichloroethene 156-60-5 8260D ND 1ug/L40100
1,2-Dichloropropane 78-87-5 8260D ND 1ug/L40100
1,3-Dichloropropane 142-28-9 8260D ND 1ug/L40100
2,2-Dichloropropane 594-20-7 8260D ND 1ug/L40100
1,1-Dichloropropene 563-58-6 8260D ND 1ug/L40200
cis-1,3-Dichloropropene 10061-01-5 8260D ND 1ug/L40100
trans-1,3-Dichloropropene 10061-02-6 8260D ND 1ug/L40100
Diisopropyl ether (IPE)108-20-3 8260D ND 1ug/L40100
Ethylbenzene 100-41-4 8260D 1700 1ug/L40100
Hexachlorobutadiene 87-68-3 8260D ND 1ug/L40100
J = Estimated result < LOQ and > DL_
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range
P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria
H = Out of holding time
Q = Surrogate failure
L = LCS/LCSD failure
S = MS/MSD failure
DL = Detection Limit
W = Reported on wet weight basis
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Page 5 of 18
Description:Matrix:
Date Received:
Client:Laboratory ID:
Date Sampled:
Bunnell-Lammons Engineering, Inc.
MW-28
YG21032-001
07/19/2023 1030
07/21/2023
Aqueous
Volatile Organic Compounds by GC/MS
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 5030B 8260D 100 07/26/2023 0555 CDA 80861
AnalyticalCAS
Parameter Number Method Result Q LOQ Units Run DL
2-Hexanone 591-78-6 8260D ND 1ug/L2001000
Isopropylbenzene 98-82-8 8260D 89 J 1ug/L40100
p-Isopropyltoluene 99-87-6 8260D ND 1ug/L40100
Methyl tertiary butyl ether (MTBE)1634-04-4 8260D ND 1ug/L40100
4-Methyl-2-pentanone 108-10-1 8260D ND 1ug/L2001000
Methylene chloride 75-09-2 8260D ND 1ug/L40100
Naphthalene 91-20-3 8260D 250 1ug/L40100
n-Propylbenzene 103-65-1 8260D 150 1ug/L40100
Styrene 100-42-5 8260D 120 1ug/L41100
1,1,1,2-Tetrachloroethane 630-20-6 8260D ND 1ug/L40100
1,1,2,2-Tetrachloroethane 79-34-5 8260D ND 1ug/L40100
Tetrachloroethene 127-18-4 8260D ND 1ug/L40100
Toluene 108-88-3 8260D 15000 S 1ug/L40100
1,1,2-Trichloro-1,2,2-Trifluoroethane 76-13-1 8260D ND 1ug/L42100
1,2,3-Trichlorobenzene 87-61-6 8260D ND 1ug/L40100
1,2,4-Trichlorobenzene 120-82-1 8260D ND 1ug/L40100
1,1,1-Trichloroethane 71-55-6 8260D ND 1ug/L40100
1,1,2-Trichloroethane 79-00-5 8260D ND 1ug/L40100
Trichloroethene 79-01-6 8260D ND 1ug/L40100
Trichlorofluoromethane 75-69-4 8260D ND 1ug/L40100
1,2,3-Trichloropropane 96-18-4 8260D ND 1ug/L40100
1,2,4-Trimethylbenzene 95-63-6 8260D 1200 1ug/L40100
1,3,5-Trimethylbenzene 108-67-8 8260D 300 1ug/L40100
Vinyl chloride 75-01-4 8260D ND 1ug/L40100
Xylenes (total)1330-20-7 8260D 7000 1ug/L40100
AcceptanceRun 1
Surrogate Q % Recovery Limits
Bromofluorobenzene 106 70-130
1,2-Dichloroethane-d4 105 70-130
Toluene-d8 110 70-130
J = Estimated result < LOQ and > DL_
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range
P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria
H = Out of holding time
Q = Surrogate failure
L = LCS/LCSD failure
S = MS/MSD failure
DL = Detection Limit
W = Reported on wet weight basis
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Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)

Page 6 of 18
QC Summary
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Page 7 of 18
Volatile Organic Compounds by GC/MS - MB
Batch:Prep Method:
Sample ID:YQ80861-001
80861 5030B
Analytical Method:8260D
Matrix:Aqueous
Parameter Result Q LOQ DL Units Analysis DateDil
Acetone ND 07/25/2023 2145205.0 ug/L1
Benzene ND 07/25/2023 21451.0 0.40 ug/L1
Bromobenzene ND 07/25/2023 21451.0 0.40 ug/L1
Bromochloromethane ND 07/25/2023 21451.0 0.40 ug/L1
Bromoform ND 07/25/2023 21451.0 0.40 ug/L1
Bromomethane (Methyl bromide)ND 07/25/2023 21452.0 0.40 ug/L1
2-Butanone (MEK)ND 07/25/2023 2145102.0 ug/L1
n-Butylbenzene ND 07/25/2023 21451.0 0.40 ug/L1
sec-Butylbenzene ND 07/25/2023 21451.0 0.40 ug/L1
tert-Butylbenzene ND 07/25/2023 21451.0 0.40 ug/L1
Carbon tetrachloride ND 07/25/2023 21451.0 0.40 ug/L1
Chlorobenzene ND 07/25/2023 21451.0 0.40 ug/L1
Chloroethane ND 07/25/2023 21452.0 0.40 ug/L1
Chloroform ND 07/25/2023 21451.0 0.40 ug/L1
Chloromethane (Methyl chloride)ND 07/25/2023 21451.0 0.50 ug/L1
2-Chlorotoluene ND 07/25/2023 21451.0 0.40 ug/L1
4-Chlorotoluene ND 07/25/2023 21451.0 0.40 ug/L1
1,2-Dibromo-3-chloropropane (DBCP)ND 07/25/2023 21451.0 0.40 ug/L1
Dibromochloromethane ND 07/25/2023 21451.0 0.40 ug/L1
1,2-Dibromoethane (EDB)ND 07/25/2023 21451.0 0.40 ug/L1
Dibromomethane (Methylene bromide)ND 07/25/2023 21451.0 0.40 ug/L1
trans-1,4-Dichloro-2-butene ND 07/25/2023 21452.0 0.50 ug/L1
1,2-Dichlorobenzene ND 07/25/2023 21451.0 0.40 ug/L1
1,3-Dichlorobenzene ND 07/25/2023 21451.0 0.40 ug/L1
1,4-Dichlorobenzene ND 07/25/2023 21451.0 0.40 ug/L1
Dichlorodifluoromethane ND 07/25/2023 21452.0 0.60 ug/L1
1,1-Dichloroethane ND 07/25/2023 21451.0 0.40 ug/L1
1,2-Dichloroethane ND 07/25/2023 21451.0 0.40 ug/L1
1,1-Dichloroethene ND 07/25/2023 21451.0 0.40 ug/L1
cis-1,2-Dichloroethene ND 07/25/2023 21451.0 0.40 ug/L1
trans-1,2-Dichloroethene ND 07/25/2023 21451.0 0.40 ug/L1
1,2-Dichloropropane ND 07/25/2023 21451.0 0.40 ug/L1
1,3-Dichloropropane ND 07/25/2023 21451.0 0.40 ug/L1
2,2-Dichloropropane ND 07/25/2023 21451.0 0.40 ug/L1
1,1-Dichloropropene ND 07/25/2023 21452.0 0.40 ug/L1
cis-1,3-Dichloropropene ND 07/25/2023 21451.0 0.40 ug/L1
trans-1,3-Dichloropropene ND 07/25/2023 21451.0 0.40 ug/L1
Diisopropyl ether (IPE)ND 07/25/2023 21451.0 0.40 ug/L1
Ethylbenzene ND 07/25/2023 21451.0 0.40 ug/L1
Hexachlorobutadiene ND 07/25/2023 21451.0 0.40 ug/L1
2-Hexanone ND 07/25/2023 2145102.0 ug/L1
Isopropylbenzene ND 07/25/2023 21451.0 0.40 ug/L1
p-Isopropyltoluene ND 07/25/2023 21451.0 0.40 ug/L1
Methyl tertiary butyl ether (MTBE)ND 07/25/2023 21451.0 0.40 ug/L1
Note:Calculations are performed before rounding to avoid round-off errors in calculated results
LOQ = Limit of Quantitation ND = Not detected at or above the DL
J = Estimated result < LOQ and > DL
N = Recovery is out of criteria
P = The RPD between two GC columns exceeds 40%
+ = RPD is out of criteria
_DL = Detection Limit
* = RSD is out of criteria
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)

Page 8 of 18
Volatile Organic Compounds by GC/MS - MB
Batch:Prep Method:
Sample ID:YQ80861-001
80861 5030B
Analytical Method:8260D
Matrix:Aqueous
Parameter Result Q LOQ DL Units Analysis DateDil
4-Methyl-2-pentanone ND 07/25/2023 2145102.0 ug/L1
Methylene chloride ND 07/25/2023 21451.0 0.40 ug/L1
Naphthalene ND 07/25/2023 21451.0 0.40 ug/L1
n-Propylbenzene ND 07/25/2023 21451.0 0.40 ug/L1
Styrene ND 07/25/2023 21451.0 0.41 ug/L1
1,1,1,2-Tetrachloroethane ND 07/25/2023 21451.0 0.40 ug/L1
1,1,2,2-Tetrachloroethane ND 07/25/2023 21451.0 0.40 ug/L1
Tetrachloroethene ND 07/25/2023 21451.0 0.40 ug/L1
Toluene ND 07/25/2023 21451.0 0.40 ug/L1
1,1,2-Trichloro-1,2,2-Trifluoroethane ND 07/25/2023 21451.0 0.42 ug/L1
1,2,3-Trichlorobenzene ND 07/25/2023 21451.0 0.40 ug/L1
1,2,4-Trichlorobenzene ND 07/25/2023 21451.0 0.40 ug/L1
1,1,1-Trichloroethane ND 07/25/2023 21451.0 0.40 ug/L1
1,1,2-Trichloroethane ND 07/25/2023 21451.0 0.40 ug/L1
Trichloroethene ND 07/25/2023 21451.0 0.40 ug/L1
Trichlorofluoromethane ND 07/25/2023 21451.0 0.40 ug/L1
1,2,3-Trichloropropane ND 07/25/2023 21451.0 0.40 ug/L1
1,2,4-Trimethylbenzene ND 07/25/2023 21451.0 0.40 ug/L1
1,3,5-Trimethylbenzene ND 07/25/2023 21451.0 0.40 ug/L1
Vinyl chloride ND 07/25/2023 21451.0 0.40 ug/L1
Xylenes (total)ND 07/25/2023 21451.0 0.40 ug/L1
Surrogate Q % Rec Acceptance
Limit
Bromofluorobenzene 100 70-130
1,2-Dichloroethane-d4 102 70-130
Toluene-d8 106 70-130
Note:Calculations are performed before rounding to avoid round-off errors in calculated results
LOQ = Limit of Quantitation ND = Not detected at or above the DL
J = Estimated result < LOQ and > DL
N = Recovery is out of criteria
P = The RPD between two GC columns exceeds 40%
+ = RPD is out of criteria
_DL = Detection Limit
* = RSD is out of criteria
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)

Page 9 of 18
Volatile Organic Compounds by GC/MS - LCS
Batch:Prep Method:
Sample ID:YQ80861-002
80861 5030B
Analytical Method:8260D
Matrix:Aqueous
Parameter
Result
Q % Rec
Spike
Amount
Analysis Date
%Rec
LimitDil(ug/L)(ug/L)
Acetone 63 07/25/2023 20126310060-1401
Benzene 51 07/25/2023 20121025070-1301
Bromobenzene 51 07/25/2023 20121035070-1301
Bromochloromethane 48 07/25/2023 2012965070-1301
Bromoform 53 07/25/2023 20121065070-1301
Bromomethane (Methyl bromide)58 07/25/2023 20121155070-1301
2-Butanone (MEK)92 07/25/2023 20129210070-1301
n-Butylbenzene 57 07/25/2023 20121155070-1301
sec-Butylbenzene 55 07/25/2023 20121115070-1301
tert-Butylbenzene 50 07/25/2023 2012995070-1301
Carbon tetrachloride 50 07/25/2023 20121005070-1301
Chlorobenzene 52 07/25/2023 20121045070-1301
Chloroethane 57 07/25/2023 20121135070-1301
Chloroform 47 07/25/2023 2012955070-1301
Chloromethane (Methyl chloride)56 07/25/2023 20121125060-1401
2-Chlorotoluene 53 07/25/2023 20121055070-1301
4-Chlorotoluene 53 07/25/2023 20121065070-1301
1,2-Dibromo-3-chloropropane (DBCP)49 07/25/2023 2012975070-1301
Dibromochloromethane 52 07/25/2023 20121055070-1301
1,2-Dibromoethane (EDB)51 07/25/2023 20121025070-1301
Dibromomethane (Methylene bromide)48 07/25/2023 2012975070-1301
trans-1,4-Dichloro-2-butene 48 07/25/2023 2012975070-1301
1,2-Dichlorobenzene 52 07/25/2023 20121045070-1301
1,3-Dichlorobenzene 53 07/25/2023 20121055070-1301
1,4-Dichlorobenzene 51 07/25/2023 20121025070-1301
Dichlorodifluoromethane 56 07/25/2023 20121115060-1401
1,1-Dichloroethane 49 07/25/2023 2012985070-1301
1,2-Dichloroethane 51 07/25/2023 20121015070-1301
1,1-Dichloroethene 49 07/25/2023 2012995070-1301
cis-1,2-Dichloroethene 47 07/25/2023 2012955070-1301
trans-1,2-Dichloroethene 48 07/25/2023 2012965070-1301
1,2-Dichloropropane 49 07/25/2023 2012985070-1301
1,3-Dichloropropane 50 07/25/2023 20121005070-1301
2,2-Dichloropropane 55 07/25/2023 20121105070-1301
1,1-Dichloropropene 49 07/25/2023 2012995070-1301
cis-1,3-Dichloropropene 51 07/25/2023 20121025070-1301
trans-1,3-Dichloropropene 52 07/25/2023 20121055070-1301
Diisopropyl ether (IPE)49 07/25/2023 2012995070-1301
Ethylbenzene 55 07/25/2023 20121105070-1301
Hexachlorobutadiene 57 07/25/2023 20121145060-1401
2-Hexanone 110 07/25/2023 201210910070-1301
Isopropylbenzene 53 07/25/2023 20121065070-1301
p-Isopropyltoluene 56 07/25/2023 20121115070-1301
Methyl tertiary butyl ether (MTBE)46 07/25/2023 2012935070-1301
Note:Calculations are performed before rounding to avoid round-off errors in calculated results
LOQ = Limit of Quantitation ND = Not detected at or above the DL
J = Estimated result < LOQ and > DL
N = Recovery is out of criteria
P = The RPD between two GC columns exceeds 40%
+ = RPD is out of criteria
_DL = Detection Limit
* = RSD is out of criteria
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)

Page 10 of 18
Volatile Organic Compounds by GC/MS - LCS
Batch:Prep Method:
Sample ID:YQ80861-002
80861 5030B
Analytical Method:8260D
Matrix:Aqueous
Parameter
Result
Q % Rec
Spike
Amount
Analysis Date
%Rec
LimitDil(ug/L)(ug/L)
4-Methyl-2-pentanone 97 07/25/2023 20129710070-1301
Methylene chloride 48 07/25/2023 2012965070-1301
Naphthalene 58 07/25/2023 20121165070-1301
n-Propylbenzene 54 07/25/2023 20121075070-1301
Styrene 51 07/25/2023 20121025070-1301
1,1,1,2-Tetrachloroethane 53 07/25/2023 20121065070-1301
1,1,2,2-Tetrachloroethane 49 07/25/2023 2012985070-1301
Tetrachloroethene 55 07/25/2023 20121115070-1301
Toluene 55 07/25/2023 20121105070-1301
1,1,2-Trichloro-1,2,2-Trifluoroethane 50 07/25/2023 2012995070-1301
1,2,3-Trichlorobenzene 54 07/25/2023 20121095070-1301
1,2,4-Trichlorobenzene 54 07/25/2023 20121085070-1301
1,1,1-Trichloroethane 50 07/25/2023 20121005070-1301
1,1,2-Trichloroethane 48 07/25/2023 2012965070-1301
Trichloroethene 52 07/25/2023 20121035070-1301
Trichlorofluoromethane 53 07/25/2023 20121065070-1301
1,2,3-Trichloropropane 48 07/25/2023 2012955070-1301
1,2,4-Trimethylbenzene 56 07/25/2023 20121135070-1301
1,3,5-Trimethylbenzene 55 07/25/2023 20121105070-1301
Vinyl chloride 60 07/25/2023 20121205070-1301
Xylenes (total)110 07/25/2023 201211410070-1301
Surrogate Q % Rec Acceptance
Limit
Bromofluorobenzene 107 70-130
1,2-Dichloroethane-d4 98 70-130
Toluene-d8 108 70-130
Note:Calculations are performed before rounding to avoid round-off errors in calculated results
LOQ = Limit of Quantitation ND = Not detected at or above the DL
J = Estimated result < LOQ and > DL
N = Recovery is out of criteria
P = The RPD between two GC columns exceeds 40%
+ = RPD is out of criteria
_DL = Detection Limit
* = RSD is out of criteria
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)

Page 11 of 18
Volatile Organic Compounds by GC/MS - MS
Batch:Prep Method:
Sample ID:YG21032-001MS
80861 5030B
Analytical Method:8260D
Matrix:Aqueous
Parameter
Result
Q % Rec
Spike
Amount
Analysis Date
%Rec
Limit
Sample
Amount
Dil(ug/L)(ug/L)(ug/L)
Acetone 6300 07/26/2023 0618611000060-140ND100
Benzene 8600 07/26/2023 0618113500070-1302900100
Bromobenzene 5300 07/26/2023 0618107500070-130ND100
Bromochloromethane 4900 07/26/2023 061898500070-130ND100
Bromoform 5600 07/26/2023 0618111500070-130ND100
Bromomethane (Methyl bromide)5900 07/26/2023 0618118500070-130ND100
2-Butanone (MEK)9200 07/26/2023 0618921000070-130ND100
n-Butylbenzene 5900 07/26/2023 0618118500070-130ND100
sec-Butylbenzene 5700 07/26/2023 0618114500070-130ND100
tert-Butylbenzene 5200 07/26/2023 0618104500070-130ND100
Carbon tetrachloride 5200 07/26/2023 0618104500070-130ND100
Chlorobenzene 5500 07/26/2023 0618110500070-130ND100
Chloroethane 6000 07/26/2023 0618119500070-130ND100
Chloroform 5000 07/26/2023 061899500070-130ND100
Chloromethane (Methyl chloride)5900 07/26/2023 0618119500060-140ND100
2-Chlorotoluene 5700 07/26/2023 0618115500070-130ND100
4-Chlorotoluene 5500 07/26/2023 0618110500070-130ND100
1,2-Dibromo-3-chloropropane (DBCP)5100 07/26/2023 0618101500070-130ND100
Dibromochloromethane 5400 07/26/2023 0618107500070-130ND100
1,2-Dibromoethane (EDB)5200 07/26/2023 0618104500070-130ND100
Dibromomethane (Methylene bromide)5100 07/26/2023 0618103500070-130ND100
trans-1,4-Dichloro-2-butene 5100 07/26/2023 0618102500070-130ND100
1,2-Dichlorobenzene 5200 07/26/2023 0618105500070-130ND100
1,3-Dichlorobenzene 5300 07/26/2023 0618106500070-130ND100
1,4-Dichlorobenzene 5200 07/26/2023 0618104500070-130ND100
Dichlorodifluoromethane 5600 07/26/2023 0618112500060-140ND100
1,1-Dichloroethane 5100 07/26/2023 0618101500070-130ND100
1,2-Dichloroethane 5300 07/26/2023 0618107500070-130ND100
1,1-Dichloroethene 5100 07/26/2023 0618103500070-130ND100
cis-1,2-Dichloroethene 4900 07/26/2023 061898500070-130ND100
trans-1,2-Dichloroethene 5000 07/26/2023 0618100500070-130ND100
1,2-Dichloropropane 5200 07/26/2023 0618104500070-130ND100
1,3-Dichloropropane 5200 07/26/2023 0618104500070-130ND100
2,2-Dichloropropane 5200 07/26/2023 0618104500070-130ND100
1,1-Dichloropropene 5200 07/26/2023 0618105500070-130ND100
cis-1,3-Dichloropropene 5200 07/26/2023 0618104500070-130ND100
trans-1,3-Dichloropropene 5400 07/26/2023 0618109500070-130ND100
Diisopropyl ether (IPE)5200 07/26/2023 0618103500070-130ND100
Ethylbenzene 7700 07/26/2023 0618122500070-1301700100
Hexachlorobutadiene 4800 07/26/2023 061897500060-140ND100
2-Hexanone 12000 07/26/2023 06181161000070-130ND100
Isopropylbenzene 5600 07/26/2023 0618111500070-13089100
p-Isopropyltoluene 5700 07/26/2023 0618115500070-130ND100
Methyl tertiary butyl ether (MTBE)4700 07/26/2023 061895500070-130ND100
Note:Calculations are performed before rounding to avoid round-off errors in calculated results
LOQ = Limit of Quantitation ND = Not detected at or above the DL
J = Estimated result < LOQ and > DL
N = Recovery is out of criteria
P = The RPD between two GC columns exceeds 40%
+ = RPD is out of criteria
_DL = Detection Limit
* = RSD is out of criteria
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)

Page 12 of 18
Volatile Organic Compounds by GC/MS - MS
Batch:Prep Method:
Sample ID:YG21032-001MS
80861 5030B
Analytical Method:8260D
Matrix:Aqueous
Parameter
Result
Q % Rec
Spike
Amount
Analysis Date
%Rec
Limit
Sample
Amount
Dil(ug/L)(ug/L)(ug/L)
4-Methyl-2-pentanone 11000 07/26/2023 06181061000070-130ND100
Methylene chloride 5000 07/26/2023 0618101500070-130ND100
Naphthalene 5800 07/26/2023 0618110500070-130250100
n-Propylbenzene 5900 07/26/2023 0618115500070-130150100
Styrene 5500 07/26/2023 0618107500070-130120100
1,1,1,2-Tetrachloroethane 5500 07/26/2023 0618109500070-130ND100
1,1,2,2-Tetrachloroethane 4900 07/26/2023 061897500070-130ND100
Tetrachloroethene 5700 07/26/2023 0618113500070-130ND100
Toluene 22000 07/26/2023 0618N131500070-13015000100
1,1,2-Trichloro-1,2,2-Trifluoroethane 5000 07/26/2023 061899500070-130ND100
1,2,3-Trichlorobenzene 5000 07/26/2023 0618100500070-130ND100
1,2,4-Trichlorobenzene 5100 07/26/2023 0618103500070-130ND100
1,1,1-Trichloroethane 5200 07/26/2023 0618104500070-130ND100
1,1,2-Trichloroethane 5000 07/26/2023 0618100500070-130ND100
Trichloroethene 5300 07/26/2023 0618107500070-130ND100
Trichlorofluoromethane 5400 07/26/2023 0618108500070-130ND100
1,2,3-Trichloropropane 4900 07/26/2023 061899500070-130ND100
1,2,4-Trimethylbenzene 7200 07/26/2023 0618121500070-1301200100
1,3,5-Trimethylbenzene 6100 07/26/2023 0618117500070-130300100
Vinyl chloride 6400 07/26/2023 0618129500070-130ND100
Xylenes (total)20000 07/26/2023 06181271000070-1307000100
Surrogate Q % Rec Acceptance
Limit
Bromofluorobenzene 114 70-130
1,2-Dichloroethane-d4 106 70-130
Toluene-d8 114 70-130
Note:Calculations are performed before rounding to avoid round-off errors in calculated results
LOQ = Limit of Quantitation ND = Not detected at or above the DL
J = Estimated result < LOQ and > DL
N = Recovery is out of criteria
P = The RPD between two GC columns exceeds 40%
+ = RPD is out of criteria
_DL = Detection Limit
* = RSD is out of criteria
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)

Page 13 of 18
Volatile Organic Compounds by GC/MS - MSD
Batch:Prep Method:
Sample ID:YG21032-001MD
80861 5030B
Analytical Method:8260D
Matrix:Aqueous
Parameter
Result
Q % Rec
Spike
Amount
Analysis Date% RPD
%Rec
Limit
% RPD
Limit
Sample
Amount
Dil(ug/L)(ug/L)(ug/L)
Acetone 6100 07/26/2023 0641N591000060-1402.9 20ND100
Benzene 8300 07/26/2023 0641107500070-1303.6 202900100
Bromobenzene 5300 07/26/2023 0641105500070-1301.3 20ND100
Bromochloromethane 4700 07/26/2023 064195500070-1303.3 20ND100
Bromoform 5300 07/26/2023 0641107500070-1304.2 20ND100
Bromomethane (Methyl bromide)5700 07/26/2023 0641113500070-1304.0 20ND100
2-Butanone (MEK)8500 07/26/2023 0641851000070-1308.5 20ND100
n-Butylbenzene 6200 07/26/2023 0641124500070-1305.2 20ND100
sec-Butylbenzene 5800 07/26/2023 0641117500070-1302.0 20ND100
tert-Butylbenzene 5300 07/26/2023 0641105500070-1301.4 20ND100
Carbon tetrachloride 5100 07/26/2023 0641101500070-1302.7 20ND100
Chlorobenzene 5300 07/26/2023 0641106500070-1303.5 20ND100
Chloroethane 5500 07/26/2023 0641110500070-1308.3 20ND100
Chloroform 4900 07/26/2023 064197500070-1302.3 20ND100
Chloromethane (Methyl chloride)6000 07/26/2023 0641120500060-1400.77 20ND100
2-Chlorotoluene 5800 07/26/2023 0641115500070-1300.52 20ND100
4-Chlorotoluene 5500 07/26/2023 0641110500070-1300.15 20ND100
1,2-Dibromo-3-chloropropane (DBCP)5000 07/26/2023 0641100500070-1301.7 20ND100
Dibromochloromethane 5200 07/26/2023 0641104500070-1302.5 20ND100
1,2-Dibromoethane (EDB)5100 07/26/2023 0641102500070-1301.8 20ND100
Dibromomethane (Methylene bromide)4800 07/26/2023 064196500070-1307.0 20ND100
trans-1,4-Dichloro-2-butene 5200 07/26/2023 0641105500070-1302.5 20ND100
1,2-Dichlorobenzene 5300 07/26/2023 0641106500070-1301.2 20ND100
1,3-Dichlorobenzene 5300 07/26/2023 0641105500070-1300.81 20ND100
1,4-Dichlorobenzene 5200 07/26/2023 0641105500070-1300.92 20ND100
Dichlorodifluoromethane 5500 07/26/2023 0641111500060-1401.3 20ND100
1,1-Dichloroethane 5000 07/26/2023 0641100500070-1301.3 20ND100
1,2-Dichloroethane 5100 07/26/2023 0641101500070-1305.1 20ND100
1,1-Dichloroethene 4800 07/26/2023 064197500070-1305.8 20ND100
cis-1,2-Dichloroethene 4900 07/26/2023 064198500070-1300.68 20ND100
trans-1,2-Dichloroethene 4900 07/26/2023 064198500070-1301.5 20ND100
1,2-Dichloropropane 5100 07/26/2023 0641102500070-1302.4 20ND100
1,3-Dichloropropane 5100 07/26/2023 0641102500070-1301.1 20ND100
2,2-Dichloropropane 4900 07/26/2023 064198500070-1306.6 20ND100
1,1-Dichloropropene 5200 07/26/2023 0641103500070-1301.4 20ND100
cis-1,3-Dichloropropene 5100 07/26/2023 0641101500070-1303.2 20ND100
trans-1,3-Dichloropropene 5300 07/26/2023 0641105500070-1303.0 20ND100
Diisopropyl ether (IPE)5000 07/26/2023 0641101500070-1302.9 20ND100
Ethylbenzene 7700 07/26/2023 0641121500070-1300.084 201700100
Hexachlorobutadiene 5100 07/26/2023 0641102500060-1405.2 20ND100
2-Hexanone 11000 07/26/2023 06411111000070-1304.7 20ND100
Isopropylbenzene 5500 07/26/2023 0641109500070-1301.7 2089100
p-Isopropyltoluene 5800 07/26/2023 0641116500070-1301.3 20ND100
Methyl tertiary butyl ether (MTBE)4700 07/26/2023 064194500070-1301.0 20ND100
Note:Calculations are performed before rounding to avoid round-off errors in calculated results
LOQ = Limit of Quantitation ND = Not detected at or above the DL
J = Estimated result < LOQ and > DL
N = Recovery is out of criteria
P = The RPD between two GC columns exceeds 40%
+ = RPD is out of criteria
_DL = Detection Limit
* = RSD is out of criteria
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)

Page 14 of 18
Volatile Organic Compounds by GC/MS - MSD
Batch:Prep Method:
Sample ID:YG21032-001MD
80861 5030B
Analytical Method:8260D
Matrix:Aqueous
Parameter
Result
Q % Rec
Spike
Amount
Analysis Date% RPD
%Rec
Limit
% RPD
Limit
Sample
Amount
Dil(ug/L)(ug/L)(ug/L)
4-Methyl-2-pentanone 10000 07/26/2023 06411031000070-1303.1 20ND100
Methylene chloride 4800 07/26/2023 064196500070-1304.8 20ND100
Naphthalene 5800 07/26/2023 0641111500070-1300.33 20250100
n-Propylbenzene 6000 07/26/2023 0641118500070-1302.2 20150100
Styrene 5300 07/26/2023 0641103500070-1303.2 20120100
1,1,1,2-Tetrachloroethane 5400 07/26/2023 0641108500070-1301.1 20ND100
1,1,2,2-Tetrachloroethane 4900 07/26/2023 064198500070-1300.15 20ND100
Tetrachloroethene 5600 07/26/2023 0641113500070-1300.12 20ND100
Toluene 22000 07/26/2023 0641E123500070-1301.6 2015000100
1,1,2-Trichloro-1,2,2-Trifluoroethane 4700 07/26/2023 064194500070-1305.0 20ND100
1,2,3-Trichlorobenzene 5100 07/26/2023 0641103500070-1302.2 20ND100
1,2,4-Trichlorobenzene 5300 07/26/2023 0641107500070-1304.1 20ND100
1,1,1-Trichloroethane 5000 07/26/2023 064199500070-1304.5 20ND100
1,1,2-Trichloroethane 4800 07/26/2023 064195500070-1304.3 20ND100
Trichloroethene 5200 07/26/2023 0641104500070-1302.6 20ND100
Trichlorofluoromethane 5100 07/26/2023 0641103500070-1304.8 20ND100
1,2,3-Trichloropropane 4900 07/26/2023 064198500070-1301.4 20ND100
1,2,4-Trimethylbenzene 7300 07/26/2023 0641122500070-1301.0 201200100
1,3,5-Trimethylbenzene 6200 07/26/2023 0641119500070-1301.5 20300100
Vinyl chloride 6200 07/26/2023 0641124500070-1303.8 20ND100
Xylenes (total)19000 07/26/2023 06411241000070-1301.5 207000100
Surrogate Q % Rec Acceptance
Limit
Bromofluorobenzene 112 70-130
1,2-Dichloroethane-d4 101 70-130
Toluene-d8 112 70-130
Note:Calculations are performed before rounding to avoid round-off errors in calculated results
LOQ = Limit of Quantitation ND = Not detected at or above the DL
J = Estimated result < LOQ and > DL
N = Recovery is out of criteria
P = The RPD between two GC columns exceeds 40%
+ = RPD is out of criteria
_DL = Detection Limit
* = RSD is out of criteria
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)

Page 15 of 18
Chain of Custody
and
Miscellaneous Documents
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)

Page 16 of 18
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PACE ANALYTICAL SERVICES, LLC

106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)

Page 18 of 18