NCG020330_2023 DMR_20240119 (2)

•
%% eurofins
Environment Testing
ANALYTICAL REPORT
PREPARED FOR
Attn: Daniel Christman
3M Company
4191 Hwy 87 South
Moncure, North Carolina 27559
Generated 12/19/2023 11:26:48 PM
JOB DESCRIPTION
3M WMS - WW PFAS Pittsboro, NC
JOB NUMBER
410-152201-1
Eurofins Lancaster Laboratories Environment Testing, LLC
2425 New Holland Pike
Lancaster PA 17601
Page 1 of 27 o�z
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See page two for job notes and contact information. g o

111
Eurofins Lancaster Laboratories Environment Testing, LLC
Job Notes
This report may not be reproduced except in full, and with written approval from the laboratory. The results relate only to the
samples tested. For questions please contact the Project Manager at the e-mail address or telephone number listed on this
page.
Analytical test results meet all requirements of the associated regulatory program (i.e., NELAC (TNI), DoD, and ISO 17025)
unless otherwise noted under the individual analysis.
Authorization
Generated
12/19/2023 11:26:48 PM
Authorized for release by
Nicole Brown,Project Manager
[e-mail]
[phone]
Eurofins Lancaster Laboratories is a laboratory within Eurofins Lancaster Laboratories Environment Testing, LLC,a company within Eurofins Environment
Testing Group of Companies
Page 2 of 27 12/19/2023

Eurofins Lancaster Laboratories Environment Testing, LLC
Compliance Statement
Analytical test results meet all requirements of the associated regulatory program (e.g., NELAC (TNI), DoD, and ISO 17025)
unless otherwise noted under the individual analysis. Data qualifiers are applied to note exceptions. Noncompliant quality
control (QC) is further explained in narrative comments.
• QC results that exceed the upper limits and are associated with non-detect samples are qualified but further narration is not
required since the bias is high and does not change a non-detect result. Further narration is also not required with QC blank
detection when the associated sample concentration is non-detect or more than ten times the level in the blank.
Matrix QC may not be reported if insufficient sample or site-specific QC samples were not submitted. In these situations, to
demonstrate precision and accuracy at a batch level, a LCS/LCSD is performed, unless otherwise specified in the method.
Surrogate and/or isotope dilution analyte recoveries (if applicable)which are outside of the QC window are confirmed
unless attributed to a dilution or otherwise noted in the narrative.
Regulated compliance samples (e.g. SDWA, NPDES) must comply with the associated agency requirements/permits.
Measurement uncertainty values, as applicable, are available upon request.
Test results relate only to the sample tested. Clients should be aware that a critical step in a chemical or microbiological
analysis is the collection of the sample. Unless the sample analyzed is truly representative of the bulk of material involved,
the test results will be meaningless. If you have questions regarding the proper techniques of collecting samples, please
contact us. We cannot be held responsible for sample integrity, however, unless sampling has been performed by a member
of our staff. Times are local to the area of activity. Parameters listed in the 40 CFR Part 136 Table II as "analyze
immediately" and tested in the laboratory are not performed within 15 minutes of collection.
This report shall not be reproduced except in full, without the written approval of the laboratory.
WARRANTY AND LIMITS OF LIABILITY- In accepting analytical work, we warrant the accuracy of test results for the
sample as submitted. The foregoing express warranty is exclusive and is given in lieu of all other warranties, expressed or
implied, except as otherwise agreed. We disclaim any other warranties, expressed or implied, including a warranty of fitness
for particular purpose and warranty of merchantability. In no event shall Eurofins Lancaster Laboratories Environmental, LLC
be liable for indirect, special, consequential, or incidental damages including, but not limited to, damages for loss of profit or
goodwill regardless of(A)the negligence (either sole or concurrent) of Eurofins Lancaster Laboratories Environmental and
(B)whether Eurofins Lancaster Laboratories Environmental has been informed of the possibility of such damages. We
accept no legal responsibility for the purposes for which the client uses the test results. Except as otherwise agreed, no
purchase order or other order for work shall be accepted by Eurofins Lancaster Laboratories Environmental which includes
any conditions that vary from the Standard Terms and Conditions, and Eurofins Lancaster Laboratories Environmental
hereby objects to any conflicting terms contained in any acceptance or order submitted by client.
77(
Page 3 of 27 12/19/2023

Client: 3M Company Laboratory Job ID:410-152201-1
Project/Site: 3M WMS-WW PFAS Pittsboro, NC
Table of Contents U
Cover Page 1
Table of Contents 4
Definitions/Glossary 5
Case Narrative 6
Detection Summary 7
Client Sample Results 9
Isotope Dilution Summary 14
QC Sample Results 16
QC Association Summary 20
Lab Chronicle 21
Certification Summary 23
Method Summary 24
Sample Summary 25
Chain of Custody 26
Receipt Checklists 27
Eurofins Lancaster Laboratories Environment Testing LLC
Page 4 of 27 12/19/2023

Definitions/Glossary
Client:3M Company Job ID: 410-152201-1
Project/Site: 3M WMS-WW PFAS Pittsboro, NC
Qualifiers
LCMS
Qualifier Qualifier Description
*5- Isotope dilution analyte is outside acceptance limits,low biased.
*5+ Isotope dilution analyte is outside acceptance limits,high biased.
en Refer to Case Narrative for further detail
Value is EMPC(estimated maximum possible concentration).
J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value.
Glossary
Abbreviation These commonly used abbreviations may or may not be present in this report.
c Listed under the"D"column to designate that the result is reported on a dry weight basis
%R Percent Recovery
CFL Contains Free Liquid
CFU Colony Forming Unit
CNF Contains No Free Liquid
DER Duplicate Error Ratio(normalized absolute difference)
Dil Fac Dilution Factor
DL Detection Limit(DoD/DOE)
DL,RA,RE,IN Indicates a Dilution,Re-analysis,Re-extraction,or additional Initial metals/anion analysis of the sample
DLC Decision Level Concentration(Radiochemistry)
EDL Estimated Detection Limit(Dioxin)
LOD Limit of Detection(DoD/DOE)
LOQ Limit of Quantitation(DoD/DOE)
MCL EPA recommended"Maximum Contaminant Level"
M DA Minimum Detectable Activity(Radiochemistry)
MDC Minimum Detectable Concentration(Radiochemistry)
MDL Method Detection Limit
ML Minimum Level(Dioxin)
MPN Most Probable Number
MCL Method Quantitation Limit
NC Not Calculated
ND Not Detected at the reporting limit(or MDL or EDL if shown)
NEG Negative/Absent
POS Positive/Present
PQL Practical Quantitation Limit
PRES Presumptive
QC Quality Control
RER Relative Error Ratio(Radiochemistry)
RL Reporting Limit or Requested Limit(Radiochemistry)
RPD Relative Percent Difference,a measure of the relative difference between two points
TEF Toxicity Equivalent Factor(Dioxin)
TEQ Toxicity Equivalent Quotient(Dioxin)
TNTC Too Numerous To Count
Eurofins Lancaster Laboratories Environment Testing, LLC
Page 5 of 27 12/19/2023

Case Narrative
Client: 3M Company Job ID: 410-152201-1
Project: 3M WMS -WW PFAS Pittsboro, NC
Job ID: 410-152201-1 Eurofins Lancaster Laboratories Environment
Job Narrative
410-152201-1 4
Analytical test results meet all requirements of the associated regulatory program listed on the Accreditation/Certification Summary
Page unless otherwise noted under the individual analysis. Data qualifiers are applied to indicate exceptions. Noncompliant
quality control (QC)is further explained in narrative comments.
• Matrix QC may not be reported if insufficient sample or site-specific QC samples were not submitted. In these situations,to
demonstrate precision and accuracy at a batch level, a LCS/LCSD may be performed, unless otherwise specified in the
method.
• Surrogate and/or isotope dilution analyte recoveries(if applicable)which are outside of the QC window are confirmed
unless attributed to a dilution or otherwise noted in the narrative.
Regulated compliance samples(e.g. SDWA, NPDES)must comply with the associated agency requirements/permits.
Receipt
The samples were received on 11/22/2023 10:12 AM. Unless otherwise noted below,the samples arrived in good condition, and,
where required, properly preserved and on ice. The temperatures of the 3 coolers at receipt time were 0.3°C, 1.8°C and 3.3°C
Receipt Exceptions
The Field Sampler was not listed on the Chain of Custody.The client responded that the field sampler was Faelan Hoese.
The following samples were submitted for analysis; however, it was not listed on the Chain-of-Custody(COC): DUP-001
(410-152201-8), DUP-002(410-152201-9), FB-001 (410-152201-10)and FB-002(410-152201-11). The client was contacted and
responded that the samples not listed on the COC should be analyzed.
Samples start with"OF", not"3M"as listed on the COC.The client was contacted and provided instructions to login with the prefix
"OF-"for these samples.
PFAS
Method PFC_IDA: The recovery for the labeled isotope(s) M2-6:2 FTS and 13C4 PFBA in the following sample: OF-002
(410-152201-2)is outside the QC acceptance limits. Sufficient sample was not available to re-extract this sample.
Method PFC_IDA: The recovery for the labeled isotope(s) 13C4 PFBA in the following sample: OF-001 (410-152201-1)and
DUP-001 (410-152201-8)are outside of the QC limits. Since the recovery for the labeled isotope(s)in the duplicate are also
outside of the QC limits,the data is reported.
Method PFC_IDA: Reporting limits were raised for the following sample: FB-001 (410-152201-10)due to limited sample volume.
No additional analytical or quality issues were noted,other than those described above or in the Definitions/Glossary page.
General Chemistry
No additional analytical or quality issues were noted,other than those described above or in the Definitions/Glossary page.
Eurofins Lancaster Laboratories Environment Testing, LLC
Page 6 of 27 12/19/2023

Detection Summary
Client: 3M Company Job ID: 410-152201-1
Project/Site: 3M WMS-WW PFAS Pittsboro, NC
Client Sample ID: OF-001 Lab Sample ID: 410-152201-1
Analyte Result Qualifier RL MDL Unit Dil Fac D Method Prep Type
Perfluorooctanoic acid 1.7 1.7 0.25 ng/L 1 537 IDA Total/NA
Perfluorobutanesulfonic acid 0.92 J 1.7 0.25 ng/L 1 537 IDA Total/NA
Perfluorohexanesulfonic acid 0.55 J 1.7 0.17 ng/L 1 537 IDA Total/NA0
Perfluorooctanesulfonic acid 1.3 J I 1.7 0.41 ng/L 1 537 IDA Total/NA
Perfluorohexanoic acid 1.1 J 1.7 0.83 ng/L 1 537 IDA Total/NA
Client Sample ID: OF-002 Lab Sample ID: 410-152201-2
Analyte Result Qualifier RL MDL Unit Dil Fac D Method Prep Type
Perfluorooctanoic acid 3.2 1.7 0.25 ng/L 1 537 IDA Total/NA
Perfluorobutanesulfonic acid 2.3 1.7 0.25 ng/L 1 537 IDA Total/NA
Perfluorohexanesulfonic acid 1.2 J 1.7 0.17 ng/L 1 537 IDA Total/NA
Perfluorooctanesulfonic acid 6.6 1.7 0.42 ng/L 1 537 IDA Total/NA
Perfluorobutanoic acid 6.5 1.7 0.84 ng/L 1 537 IDA Total/NA
Perfluorohexanoic acid 3.9 1.7 0.84 ng/L 1 537 IDA Total/NA
Client Sample ID: OF-005 Lab Sample ID: 410-152201-3
Analyte Result Qualifier RL MDL Unit Dil Fac D Method Prep Type
Perfluorooctanoic acid 5.0 1.8 0.27 ng/L 1 537 IDA Total/NA
Perfluorobutanesulfonic acid 1.7 J 1.8 0.27 ng/L 1 537 IDA Total/NA
Perfluorohexanesulfonic acid 1.3 J 1.8 0.18 ng/L 1 537 IDA Total/NA
Perfluorooctanesulfonic acid 1.4 J 1.8 0.45 ng/L 1 537 IDA Total/NA `[
Perfluorobutanoic acid 7.3 1.8 0.90 ng/L 1 537 IDA Total/NA
Perfluorohexanoic acid 4.0 1.8 0.90 ng/L 1 537 IDA Total/NA
Client Sample ID: OF-008 Lab Sample ID: 41 0-1 52201-4
Analyte Result Qualifier RL MDL Unit Dil Fac D Method Prep Type
Perfluorooctanoic acid 11 1.7 0.25 ng/L 1 537 IDA Total/NA
Perfluorobutanesulfonic acid 3.6 1.7 0.25 ng/L 1 537 IDA Total/NA
Perfluorohexanesulfonic acid 2.4 1.7 0.17 ng/L 1 537 IDA Total/NA
Perfluorooctanesulfonic acid 2.5 I 1.7 0.41 ng/L 1 537 IDA Total/NA
Perfluorobutanoic acid 12 1.7 0.83 ng/L 1 537 IDA Total/NA
Perfluorohexanoic acid 13 1.7 0.83 ng/L 1 537 IDA Total/NA
Client Sample ID: OF-006 Lab Sample ID: 410-152201-5
Analyte Result Qualifier RL MDL Unit Dil Fac D Method Prep Type
Perfluorooctanoic acid 1.2 J 1.7 0.25 ng/L 1 537 IDA Total/NA
Perfluorobutanesulfonic acid 0.74 J 1.7 0.25 ng/L 1 537 IDA Total/NA
Perfluorohexanesulfonic acid 0.19 J 1.7 0.17 ng/L 1 537 IDA Total/NA
Perfluorooctanesulfonic acid 1.1 J 1.7 0.42 ng/L 1 537 IDA Total/NA
Perfluorobutanoic acid 10 1.7 0.84 ng/L 1 537 IDA Total/NA
Perfluorohexanoic acid 1.9 1.7 0.84 ng/L 1 537 IDA Total/NA
Client Sample ID: Upstream-01 Lab Sample ID: 410-152201-6
Analyte Result Qualifier RL MDL Unit Dil Fac D Method Prep Type
Turbidity 18 1.0 1.0 NTU 1 2130B-2011 Total/NA
This Detection Summary does not include radiochemical test results.
Eurofins Lancaster Laboratories Environment Testing, LLC
Page 7 of 27 12/19/2023

Detection Summary
Client: 3M Company Job ID: 410-152201-1
Project/Site: 3M WMS-WW PFAS Pittsboro, NC
Client Sample ID: Downstream-01 Lab Sample ID: 410-152201-7
Analyte Result Qualifier RL MDL Unit Dil Fac D Method Prep Type
Turbidity 4.7 1.0 1.0 NTU 1 2130B-2011 Total/NA
Client Sample ID: DUP-001 Lab Sample ID: 410-152201-8 0
Analyte Result Qualifier RL MDL Unit Dil Fac D Method Prep Type I-
Perfluorooctanoic acid 1.7 1.7 0.26 ng/L 1 537 IDA Total/NA
Perfluorobutanesulfonic acid 0.90 J 1.7 0.26 ng/L 1 537 IDA Total/NA
Perfluorohexanesulfonic acid 0.56 J 1.7 0.17 ng/L 1 537 IDA Total/NA
Perfluorooctanesulfonic acid 1.2 J I 1.7 0.43 ng/L 1 537 IDA Total/NA
Perfluorohexanoic acid 1.1 J 1.7 0.87 ng/L 1 537 IDA Total/NA
Client Sample ID: FB-001 Lab Sample ID: 410-152201-10
[No Detections.
Client Sample ID: FB-002 Lab Sample ID: 410-152201-11
LNo Detections.
This Detection Summary does not include radiochemical test results.
Eurofins Lancaster Laboratories Environment Testing, LLC
Page 8 of 27 12/19/2023

Client Sample Results
Client: 3M Company Job ID: 410-152201-1
Project/Site: 3M WMS-WW PFAS Pittsboro, NC
Client Sample ID: OF-001 Lab Sample ID: 410-152201-1
Date Collected: 11/21/23 11:40 Matrix: Stormwater
Date Received: 11/22/23 10:12
Method: EPA 537 IDA-EPA 537 Isotope Dilution
Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac
Perfluorooctanoic acid 1.7 1.7 0.25 ng/L 12/09/23 08:34 12/14/23 06:13 1
4:2 Fluorotelomer sulfonic acid ND 1.7 0.41 ng/L 12/09/23 08:34 12/14/23 06:13 1
lia
6:2 Fluorotelomer sulfonic acid ND 1.7 0.41 ng/L 12/09/23 08:34 12/14/23 06:13 1
Perfluorobutanesulfonic acid 0.92 J 1.7 0.25 ng/L 12/09/23 08:34 12/14/23 06:13 1
8:2 Fluorotelomer sulfonic acid ND 1.7 0.50 ng/L 12/09/23 08:34 12/14/23 06:13 1
Perfluorohexanesulfonic acid 0.55 J 1.7 0.17 ng/L 12/09/23 08:34 12/14/23 06:13 1
Perfluorooctanesulfonic acid 1.3 J I 1.7 0.41 ng/L 12/09/23 08:34 12/14/23 06:13 1
Perfluorobutanoic acid ND 1.7 0.83 ng/L 12/09/23 08:34 12/14/23 06:13 1
Perfluorohexanoic acid 1.1 J 1.7 0.83 ng/L 12/09/23 08:34 12/14/23 06:13 1
Isotope Dilution %Recovery Qualifier Limits Prepared Analyzed Dil Fac
13C8 PFOA 97 52-153 12/09/23 08:34 12/14/23 06:13 1
13C3 PFBS 158 34-200 12/09/23 08:34 12/14/23 06:13 1
13C3 PFHxS 104 48-169 12/09/23 08:34 12/14/23 06:13 1
13C8 PFOS 98 59.155 12/09/23 08:34 12/14/23 06:13 1
M2-4:2 FTS 170 35.200 12/09/23 08:34 12/14/23 06:13 1
M2-6:2 FTS 198 40.200 12/09/23 08:34 12/14/23 06:13 1
M2-8:2 FTS 135 37.200 12/09/23 08:34 12/14/23 06:13 1 I
13C4 PFBA 3 *5-cn 22.174 12/09/23 08:34 12/14/23 06:13 1
13C5 PFHxA 68 28-166 12/09/23 08:34 12/14/23 06:13 1
Client Sample ID: OF-002 Lab Sample ID: 410-152201-2
Date Collected: 11/21/23 12:30 Matrix:Wastewater
Date Received: 11/22/23 10:12
Method: EPA 537 IDA-EPA 537 Isotope Dilution
Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac
Perfluorooctanoic acid 3.2 1.7 0.25 ng/L 12/09/23 08:34 12/14/23 06:26 1
4:2 Fluorotelomer sulfonic acid ND 1.7 0.42 ng/L 12/09/23 08:34 12/14/23 06:26 1
6:2 Fluorotelomer sulfonic acid ND 1.7 0.42 ng/L 12/09/23 08:34 12/14/23 06:26 1
Perfluorobutanesulfonic acid 2.3 1.7 0.25 ng/L 12/09/23 08:34 12/14/23 06:26 1
8:2 Fluorotelomer sulfonic acid ND 1.7 0.50 ng/L 12/09/23 08:34 12/14/23 06:26 1
Perfluorohexanesulfonic acid 1.2 J 1.7 0.17 ng/L 12/09/23 08:34 12/14/23 06:26 1
Perfluorooctanesulfonic acid 6.6 1.7 0.42 ng/L 12/09/23 08:34 12/14/23 06:26 1
Perfluorobutanoic acid 6.5 1.7 0.84 ng/L 12/09/23 08:34 12/14/23 06:26 1
Perfluorohexanoic acid 3.9 1.7 0.84 ng/L 12/09/23 08:34 12/14/23 06:26 1
Isotope Dilution %Recovery Qualifier Limits Prepared Analyzed Dil Fac
13C8 PFOA 103 52-153 12/09/23 08:34 12/14/23 06:26 1
13C3 PFBS 137 34-200 12/09/23 08:34 12/14/23 06:26 1
13C3 PFHxS 110 48-169 12/09/23 08:34 12/14/23 06:26 1
13C8 PFOS 101 59.155 12/09/23 08:34 12/14/23 06:26 1
M2-4:2 FTS 191 35.200 12/09/23 08:34 12/14/23 06:26 1
M2-6:2 FTS 203 *5+cn 40.200 12/09/23 08:34 12/14/23 06:26 1
M2-8:2 FTS 158 37.200 12/09/23 08:34 12/14/23 06:26 1
13C4 PFBA 5 *5-cn 22.174 12/09/23 08:34 12/14/23 06:26 1
13C5 PFHxA 79 28-166 12/09/23 08:34 12/14/23 06:26 1
Eurofins Lancaster Laboratories Environment Testing, LLC
Page 9 of 27 12/19/2023

Client Sample Results
Client: 3M Company Job ID: 410-152201-1
Project/Site: 3M WMS-WW PFAS Pittsboro, NC
Client Sample ID: OF-005 Lab Sample ID: 410-152201-3
Date Collected: 11/21/23 11:55 Matrix: Stormwater
Date Received: 11/22/23 10:12
Method: EPA 537 IDA-EPA 537 Isotope Dilution
Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac
Perfluorooctanoic acid 5.0 1.8 0.27 ng/L 12/09/23 08:34 12/14/23 06:39 1
4:2 Fluorotelomer sulfonic acid ND 1.8 0.45 ng/L 12/09/23 08:34 12/14/23 06:39 1
lia
6:2 Fluorotelomer sulfonic acid ND 1.8 0.45 ng/L 12/09/23 08:34 12/14/23 06:39 1
Perfluorobutanesulfonic acid 1.7 J 1.8 0.27 ng/L 12/09/23 08:34 12/14/23 06:39 1
8:2 Fluorotelomer sulfonic acid ND 1.8 0.54 ng/L 12/09/23 08:34 12/14/23 06:39 1
Perfluorohexanesulfonic acid 1.3 J 1.8 0.18 ng/L 12/09/23 08:34 12/14/23 06:39 1
Perfluorooctanesulfonic acid 1.4 J 1.8 0.45 ng/L 12/09/23 08:34 12/14/23 06:39 1
Perfluorobutanoic acid 7.3 1.8 0.90 ng/L 12/09/23 08:34 12/14/23 06:39 1
Perfluorohexanoic acid 4.0 1.8 0.90 ng/L 12/09/23 08:34 12/14/23 06:39 1
Isotope Dilution %Recovery Qualifier Limits Prepared Analyzed Dil Fac
13C8 PFOA 82 52-153 12/09/23 08:34 12/14/23 06:39 1
13C3 PFBS 91 34-200 12/09/23 08:34 12/14/23 06:39 1
13C3 PFHxS 85 48-169 12/09/23 08:34 12/14/23 06:39 1
13C8 PFOS 86 59.155 12/09/23 08:34 12/14/23 06:39 1
M2-4:2 FTS 129 35.200 12/09/23 08:34 12/14/23 06:39 1
M2-6:2 FTS 164 40.200 12/09/23 08:34 12/14/23 06:39 1
M2-8:2 FTS 140 37.200 12/09/23 08:34 12/14/23 06:39 1 I
13C4 PFBA 4 *5- 22.174 12/09/23 08:34 12/14/23 06:39 1
13C5 PFHxA 52 28-166 12/09/23 08:34 12/14/23 06:39 1
Client Sample ID: OF-008 Lab Sample ID: 410-152201-4
Date Collected: 11/21/23 12:00 Matrix: Stormwater
Date Received: 11/22/23 10:12
Method: EPA 537 IDA-EPA 537 Isotope Dilution
Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac
Perfluorooctanoic acid 11 1.7 0.25 ng/L 12/18/23 07:47 12/19/23 09:08 1
4:2 Fluorotelomer sulfonic acid ND 1.7 0.41 ng/L 12/18/23 07:47 12/19/23 09:08 1
6:2 Fluorotelomer sulfonic acid ND 1.7 0.41 ng/L 12/18/23 07:47 12/19/23 09:08 1
Perfluorobutanesulfonic acid 3.6 1.7 0.25 ng/L 12/18/23 07:47 12/19/23 09:08 1
8:2 Fluorotelomer sulfonic acid ND 1.7 0.50 ng/L 12/18/23 07:47 12/19/23 09:08 1
Perfluorohexanesulfonic acid 2.4 1.7 0.17 ng/L 12/18/23 07:47 12/19/23 09:08 1
Perfluorooctanesulfonic acid 2.5 I 1.7 0.41 ng/L 12/18/23 07:47 12/19/23 09:08 1
Perfluorobutanoic acid 12 1.7 0.83 ng/L 12/18/23 07:47 12/19/23 09:08 1
Perfluorohexanoic acid 13 1.7 0.83 ng/L 12/18/23 07:47 12/19/23 09:08 1
Isotope Dilution %Recovery Qualifier Limits Prepared Analyzed Dil Fac
13C8 PFOA 80 52-153 12/18/23 07:47 12/19/23 09:08 1
13C3 PFBS 118 34-200 12/18/23 07:47 12/19/23 09:08 1
13C3 PFHxS 83 48-169 12/18/23 07:47 12/19/23 09:08 1
13C8 PFOS 84 59.155 12/18/23 07:47 12/19/23 09:08 1
M2-4:2 FTS 142 35.200 12/18/23 07:47 12/19/23 09:08 1
M2-6:2 FTS 149 40.200 12/18/23 07:47 12/19/23 09:08 1
M2-8:2 FTS 104 37.200 12/18/23 07:47 12/19/23 09:08 1
13C4 PFBA 2 *5- 22.174 12/18/23 07:47 12/19/23 09:08 1
13C5 PFHxA 60 28-166 12/18/23 07:47 12/19/23 09:08 1
Eurofins Lancaster Laboratories Environment Testing, LLC
Page 10 of 27 12/19/2023

Client Sample Results
Client: 3M Company Job ID:410-152201-1
Project/Site: 3M WMS-WW PFAS Pittsboro, NC
Client Sample ID: OF-006 Lab Sample ID: 410-152201-5
Date Collected: 11/21/23 15:00 Matrix: Stormwater
Date Received: 11/22/23 10:12
Method: EPA 537 IDA-EPA 537 Isotope Dilution
Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac
Perfluorooctanoic acid 1.2 J 1.7 0.25 ng/L 12/09/23 08:34 12/14/23 07:04 1
4:2 Fluorotelomer sulfonic acid ND 1.7 0.42 ng/L 12/09/23 08:34 12/14/23 07:04 1 n
6:2 Fluorotelomer sulfonic acid ND 1.7 0.42 ng/L 12/09/23 08:34 12/14/23 07:04 1
Perfluorobutanesulfonic acid 0.74 J 1.7 0.25 ng/L 12/09/23 08:34 12/14/23 07:04 1
8:2 Fluorotelomer sulfonic acid ND 1.7 0.51 ng/L 12/09/23 08:34 12/14/23 07:04 1
Perfluorohexanesulfonic acid 0.19 J 1.7 0.17 ng/L 12/09/23 08:34 12/14/23 07:04 1
Perfluorooctanesulfonic acid 1.1 J 1.7 0.42 ng/L 12/09/23 08:34 12/14/23 07:04 1
Perfluorobutanoic acid 10 1.7 0.84 ng/L 12/09/23 08:34 12/14/23 07:04 1
Perfluorohexanoic acid 1.9 1.7 0.84 ng/L 12/09/23 08:34 12/14/23 07:04 1
Isotope Dilution %Recovery Qualifier Limits Prepared Analyzed Dil Fac
13C8 PFOA 97 52-153 12/09/23 08:34 12/14/23 07:04 1
13C3 PFBS 126 34.200 12/09/23 08:34 12/14/23 07:04 1
13C3 PFHxS 110 48.169 12/09/23 08:34 12/14/23 07:04 1
13C8 PFOS 95 59_155 12/09/23 08:34 12/14/23 07:04 1
M2-4:2 FTS 169 35_200 12/09/23 08:34 12/14/23 07:04 1
M2-6:2 FTS 147 40_200 12/09/23 08:34 12/14/23 07:04 1
M2-8:2 FTS 125 37_200 12/09/23 08:34 12/14/23 07:04 1
13C4 PFBA 50 22_174 12/09/23 08:34 12/14/23 07:04 1
13C5 PFHxA 83 28_166 12/09/23 08:34 12/14/23 07:04 1
Client Sample ID: Upstream-01 Lab Sample ID: 41 0-1 52201-6
Date Collected: 11/21/23 17:00 Matrix: Stormwater
Date Received: 11/22/23 10:12
General Chemistry
Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac
Turbidity(SM 2130B-2011) 18 1.0 1.0 NTU 11/22/23 19:30 1
Client Sample ID: Downstream-01 Lab Sample ID: 410-152201-7
Date Collected: 11/21/23 17:00 Matrix: Stormwater
Date Received: 11/22/23 10:12
General Chemistry
Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac
Turbidity(SM 2130B-2011) 4.7 1.0 1.0 NTU 11/22/23 19:30 1
Client Sample ID: DUP-001 Lab Sample ID: 410-152201-8
Date Collected: 11/21/23 00:00 Matrix: Stormwater
Date Received: 11/22/23 10:12
Method: EPA 537 IDA-EPA 537 Isotope Dilution
Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac
Perfluorooctanoic acid 1.7 1.7 0.26 ng/L 12/09/23 08:34 12/14/23 07:29 1
4:2 Fluorotelomer sulfonic acid ND 1.7 0.43 ng/L 12/09/23 08:34 12/14/23 07:29 1
6:2 Fluorotelomer sulfonic acid ND 1.7 0.43 ng/L 12/09/23 08:34 12/14/23 07:29 1
Perfluorobutanesulfonic acid 0.90 J 1.7 0.26 ng/L 12/09/23 08:34 12/14/23 07:29 1
8:2 Fluorotelomer sulfonic acid ND 1.7 0.52 ng/L 12/09/23 08:34 12/14/23 07:29 1
Perfluorohexanesulfonic acid 0.56 J 1.7 0.17 ng/L 12/09/23 08:34 12/14/23 07:29 1
Perfluorooctanesulfonic acid 1.2 J I 1.7 0.43 ng/L 12/09/23 08:34 12/14/23 07:29 1
Perfluorobutanoic acid ND 1.7 0.87 ng/L 12/09/23 08:34 12/14/23 07:29 1
Perfluorohexanoic acid 1.1 J 1.7 0.87 ng/L 12/09/23 08:34 12/14/23 07:29 1
Eurofins Lancaster Laboratories Environment Testing, LLC
Page 11 of 27 12/19/2023

Client Sample Results
Client: 3M Company Job ID: 410-152201-1
Project/Site: 3M WMS-WW PFAS Pittsboro, NC
Client Sample ID: DUP-001 Lab Sample ID: 410-152201-8
Date Collected: 11/21/23 00:00 Matrix: Stormwater
Date Received: 11/22/23 10:12
Isotope Dilution %Recovery Qualifier Limits Prepared Analyzed Dil Fac
13C8 PFOA 97 52.153 12/09/23 08:34 12/14/23 07:29 1
13C3 PFBS 168 34.200 12/09/23 08:34 12/14/23 07:29 1 MN
13C3 PFHxS 106 48.169 12/09/23 08:34 12/14/23 07:29 1
13C8 PFOS 101 59-155 12/09/23 08:34 12/14/23 07:29 1
M2-4:2 FTS 180 35-200 12/09/23 08:34 12/14/23 07:29 1
M2-6:2 FTS 192 40.200 12/09/23 08:34 12/14/23 07:29 1
M2-8:2 FTS 136 37_200 12/09/23 08:34 12/14/23 07:29 1
13C4 PFBA 3 *5-cn 22.174 12/09/23 08:34 12/14/23 07:29 1
13C5 PFHxA 70 28-166 12/09/23 08:34 12/14/23 07:29 1
Client Sample ID: FB-001 Lab Sample ID: 410-152201-10
Date Collected: 11/21/23 11:40 Matrix:Water
Date Received: 11/22/23 10:12
Method: EPA 537 IDA-EPA 537 Isotope Dilution
Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac
Perfluorooctanoic acid ND cn 2.1 0.32 ng/L 12/09/23 08:34 12/14/23 07:42 1
4:2 Fluorotelomer sulfonic acid ND cn 2.1 0.53 ng/L 12/09/23 08:34 12/14/23 07:42 1
6:2 Fluorotelomer sulfonic acid ND cn 2.1 0.53 ng/L 12/09/23 08:34 12/14/23 07:42 1
Perfluorobutanesulfonic acid ND cn 2.1 0.32 ng/L 12/09/23 08:34 12/14/23 07:42 1
8:2 Fluorotelomer sulfonic acid ND cn 2.1 0.64 ng/L 12/09/23 08:34 12/14/23 07:42 1
Perfluorohexanesulfonic acid ND cn 2.1 0.21 ng/L 12/09/23 08:34 12/14/23 07:42 1
Perfluorooctanesulfonic acid ND cn 2.1 0.53 ng/L 12/09/23 08:34 12/14/23 07:42 1
Perfluorobutanoic acid ND cn 2.1 1.1 ng/L 12/09/23 08:34 12/14/23 07:42 1
Perfluorohexanoic acid ND cn 2.1 1.1 ng/L 12/09/23 08:34 12/14/23 07:42 1
Isotope Dilution %Recovery Qualifier Limits Prepared Analyzed Dil Fac
13C8 PFOA 108 cn 52.153 12/09/23 08:34 12/14/23 07:42 1
13C3 PFBS 112 cn 34.200 12/09/23 08:34 12/14/23 07:42 1
13C3 PFHxS 121 cn 48.169 12/09/23 08:34 12/14/23 07:42 1
13C8 PFOS 106 cn 59.155 12/09/23 08:34 12/14/23 07:42 1
M2-4:2 FTS 113 cn 35-200 12/09/23 08:34 12/14/23 07:42 1
M2-6:2 FTS 107 cn 40.200 12/09/23 08:34 12/14/23 07:42 1
M2-8:2 FTS 105 cn 37.200 12/09/23 08:34 12/14/23 07:42 1
13C4 PFBA 102 cn 22.174 12/09/23 08:34 12/14/23 07:42 1
13C5 PFHxA 117 cn 28.166 12/09/23 08:34 12/14/23 07:42 1
Client Sample ID: FB-002 Lab Sample ID: 410-152201-11
Date Collected: 11/21/23 12:30 Matrix:Water
Date Received: 11/22/23 10:12
Method: EPA 537 IDA-EPA 537 Isotope Dilution
Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac
Perfluorooctanoic acid ND 1.8 0.27 ng/L 12/09/23 08:34 12/14/23 07:54 1
4:2 Fluorotelomer sulfonic acid ND 1.8 0.46 ng/L 12/09/23 08:34 12/14/23 07:54 1
6:2 Fluorotelomer sulfonic acid ND 1.8 0.46 ng/L 12/09/23 08:34 12/14/23 07:54 1
Perfluorobutanesulfonic acid ND 1.8 0.27 ng/L 12/09/23 08:34 12/14/23 07:54 1
8:2 Fluorotelomer sulfonic acid ND 1.8 0.55 ng/L 12/09/23 08:34 12/14/23 07:54 1
Perfluorohexanesulfonic acid ND 1.8 0.18 ng/L 12/09/23 08:34 12/14/23 07:54 1
Perfluorooctanesulfonic acid ND 1.8 0.46 ng/L 12/09/23 08:34 12/14/23 07:54 1
Perfluorobutanoic acid ND 1.8 0.91 ng/L 12/09/23 08:34 12/14/23 07:54 1
Perfluorohexanoic acid ND 1.8 0.91 ng/L 12/09/23 08:34 12/14/23 07:54 1
Eurofins Lancaster Laboratories Environment Testing, LLC
Page 12 of 27 12/19/2023

Client Sample Results
Client: 3M Company Job ID:410-152201-1
Project/Site: 3M WMS-WW PFAS Pittsboro, NC
Client Sample ID: FB-002 Lab Sample ID: 410-152201-11
Date Collected: 11/21/23 12:30 Matrix:Water
Date Received: 11/22/23 10:12
Isotope Dilution %Recovery Qualifier Limits Prepared Analyzed Dil Fac
13C8 PFOA 106 52.153 12/09/23 08:34 12/14/23 07:54 1
13C3 PFBS 109 34.200 12/09/23 08:34 12/14/23 07:54 1
13C3 PFHxS 119 48.169 12/09/23 08:34 12/14/23 07:54 1 6
13C8 PFOS 104 59_155 12/09/23 08.34 12/14/23 07.54 1
M2-4:2 FTS 121 35_200 12/09/23 08.34 12/14/23 07.54 1
M2-6:2 FTS 105 40_200 12/09/23 08.34 12/14/23 07.54 1
M2-8:2 FTS 105 37_200 12/09/23 08:34 12/14/23 07:54 1
13C4 PFBA 101 22_174 12/09/23 08:34 12/14/23 07:54 1
13C5 PFHxA 115 28_166 12/09/23 08:34 12/14/23 07:54 1
Eurofins Lancaster Laboratories Environment Testing, LLC
Page 13 of 27 12/19/2023

Isotope Dilution Summary
Client: 3M Company Job ID:410-152201-1
Project/Site: 3M WMS-WW PFAS Pittsboro, NC
Method: 537 IDA- EPA 537 Isotope Dilution
Matrix: Stormwater Prep Type: Total/NA
Percent Isotope Dilution Recovery(Acceptance Limits)
C8PFOA C3PFBS C3PFHS C8PFOS M242FTS M262FTS M282FTS PFBA
Lab Sample ID Client Sample ID (52-153) (34-200) (48-169) (59-155) (35-200) (40-200) (37-200) (22-174)
410-152201-1 OF-001 97 158 104 98 170 198 135 3*5-cn
410-152201-3 OF-005 82 91 85 86 129 164 140 4*5-
410-152201-4 OF-008 80 118 83 84 142 149 104 2*5-
410-152201-5 OF-006 97 126 110 95 169 147 125 50 U
410-152201-8 DUP-001 97 168 106 101 180 192 136 3*5-cn
Percent Isotope Dilution Recovery(Acceptance Limits)
13C5PHA
Lab Sample ID Client Sample ID (28-166)
410-152201-1 OF-001 68
410-152201-3 OF-005 52
410-152201-4 OF-008 60
410-152201-5 OF-006 83
410-152201-8 DUP-001 70
Surrogate Legend
C8PFOA=13C8 PFOA
C3PFBS=13C3 PFBS
C3PFHS=13C3 PFHxS
C8PFOS=13C8 PFOS
M242FTS=M2-4:2 FTS
M262FTS=M2-6:2 FTS
M282FTS=M2-8:2 FTS
PFBA=13C4 PFBA
13C5PHA=13C5 PFHxA
Method: 537 IDA- EPA 537 Isotope Dilution
Matrix:Wastewater Prep Type: Total/NA
Percent Isotope Dilution Recovery(Acceptance Limits)
C8PFOA C3PFBS C3PFHS C8PFOS M242FTS M262FTS M282FTS PFBA
Lab Sample ID Client Sample ID (52-153) (34-200) (48-169) (59-155) (35-200) (40-200) (37-200) (22-174)
410-152201-2 OF-002 103 137 110 101 191 203*5+ 158 5*5-cn
cn
Percent Isotope Dilution Recovery(Acceptance Limits)
13C5PHA
Lab Sample ID Client Sample ID (28-166)
410-152201-2 OF-002 79
Surrogate Legend
C8PFOA=13C8 PFOA
C3PFBS=13C3 PFBS
C3PFHS=13C3 PFHxS
C8PFOS=13C8 PFOS
M242FTS=M2-4:2 FTS
M262FTS=M2-6:2 FTS
M282FTS=M2-8:2 FTS
PFBA=13C4 PFBA
13C5PHA=13C5 PFHxA
Eurofins Lancaster Laboratories Environment Testing, LLC
Page 14 of 27 12/19/2023

Isotope Dilution Summary
Client: 3M Company Job ID: 410-152201-1
Project/Site: 3M WMS-WW PFAS Pittsboro, NC
Method: 537 IDA- EPA 537 Isotope Dilution
Matrix: Water Prep Type: Total/NA
Percent Isotope Dilution Recovery(Acceptance Limits)
C8PFOA C3PFBS C3PFHS C8PFOS M242FTS M262FTS M282FTS PFBA
Lab Sample ID Client Sample ID (52-153) (34-200) (48-169) (59-155) (35-200) (40-200) (37-200) (22-174)
410-152201-10 FB-001 108 cn 112 cn 121 cn 106 cn 113 cn 107 cn 105 cn 102 cn
410-152201-11 FB-002 106 109 119 104 121 105 105 101
LCS 410-452083/2-A Lab Control Sample 101 102 110 104 106 106 98 97
LCS 410-455137/2-A Lab Control Sample 85 82 87 83 86 88 82 62
LCSD 410-452083/3-A Lab Control Sample Dup 94 102 107 95 100 95 96 94 13
LCSD 410-455137/3-A Lab Control Sample Dup 86 84 87 85 89 86 87 75
MB 410-452083/1-A Method Blank 102 105 115 99 112 105 102 98
MB 410-455137/1-A Method Blank 87 82 86 84 88 85 86 65
Percent Isotope Dilution Recovery(Acceptance Limits)
13C5PHA
Lab Sample ID Client Sample ID (28-166)
410-152201-10 FB-001 117 cn
410-152201-11 FB-002 115
LCS 410-452083/2-A Lab Control Sample 102
LCS 410-455137/2-A Lab Control Sample 85
LCSD 410-452083/3-A Lab Control Sample Dup 97
LCSD 410-455137/3-A Lab Control Sample Dup 89
MB 410-452083/1-A Method Blank 112
MB 410-455137/1-A Method Blank 92
Surrogate Legend
C8PFOA=13C8 PFOA
C3PFBS=13C3 PFBS
C3PFHS=13C3 PFHxS
C8PFOS=13C8 PFOS
M242FTS=M2-4:2 FTS
M262FTS=M2-6:2 FTS
M282FTS=M2-8:2 FTS
PFBA=13C4 PFBA
13C5PHA=13C5 PFHxA
Eurofins Lancaster Laboratories Environment Testing, LLC
Page 15 of 27 12/19/2023

QC Sample Results
Client: 3M Company Job ID: 410-152201-1
Project/Site: 3M WMS-WW PFAS Pittsboro, NC
Method: 537 IDA- EPA 537 Isotope Dilution
Lab Sample ID: MB 410-452083/1-A Client Sample ID: Method Blank
Matrix:Water Prep Type: Total/NA
Analysis Batch:453481 Prep Batch:452083
MB MB
Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac
Perfluorooctanoic acid ND 2.0 0.30 ng/L 12/09/23 08:34 12/14/23 04:33 1
4:2 Fluorotelomer sulfonic acid ND 2.0 0.50 ng/L 12/09/23 08:34 12/14/23 04:33 1
6:2 Fluorotelomer sulfonic acid ND 2.0 0.50 ng/L 12/09/23 08:34 12/14/23 04:33 1
Perfluorobutanesulfonic acid ND 2.0 0.30 ng/L 12/09/23 08:34 12/14/23 04:33 1
8:2 Fluorotelomer sulfonic acid ND 2.0 0.60 ng/L 12/09/23 08:34 12/14/23 04:33 1 8
Perfluorohexanesulfonic acid ND 2.0 0.20 ng/L 12/09/23 08:34 12/14/23 04:33 1
Perfluorooctanesulfonic acid ND 2.0 0.50 ng/L 12/09/23 08:34 12/14/23 04:33 1
Perfluorobutanoic acid ND 2.0 1.0 ng/L 12/09/23 08:34 12/14/23 04:33 1
Perfluorohexanoic acid ND 2.0 1.0 ng/L 12/09/23 08:34 12/14/23 04:33 1
MB MB
Isotope Dilution %Recovery Qualifier Limits Prepared Analyzed Dil Fac
13C8 PFOA 102 52-153 12/09/23 08:34 12/14/23 04:33 1
13C3 PFBS 105 34.200 12/09/23 08:34 12/14/23 04:33 1 I�
13C3 PFHxS 115 48-169 12/09/23 08:34 12/14/23 04:33 1
13C8 PFOS 99 59.155 12/09/23 08:34 12/14/23 04:33 1
M2-4:2 FTS 112 35-200 12/09/23 08:34 12/14/23 04:33 1
M2-6:2 FTS 105 40-200 12/09/23 08:34 12/14/23 04:33 1
M2-8:2 FTS 102 37.200 12/09/23 08:34 12/14/23 04:33 1
13C4 PFBA 98 22.174 12/09/23 08:34 12/14/23 04:33 1
13C5 PFHxA 112 28.166 12/09/23 08:34 12/14/23 04:33 1
Lab Sample ID: LCS 410-452083/2-A Client Sample ID: Lab Control Sample
Matrix:Water Prep Type:Total/NA
Analysis Batch:453481 Prep Batch:452083
Spike LCS LCS %Rec
Analyte Added Result Qualifier Unit D %Rec Limits
Perfluorooctanoic acid 25.6 21.0 ng/L 82 58-132
4:2 Fluorotelomer sulfonic acid 23.9 20.5 ng/L 86 61_131
6:2 Fluorotelomer sulfonic acid 24.3 18.8 ng/L 78 61_132
Perfluorobutanesulfonic acid 22.7 18.3 ng/L 81 64.132
8:2 Fluorotelomer sulfonic acid 24.5 19.6 ng/L 80 55-134
Perfluorohexanesulfonic acid 23.3 18.4 ng/L 79 62.130
Perfluorooctanesulfonic acid 23.7 19.6 ng/L 83 62-130
Perfluorobutanoic acid 25.6 21.4 ng/L 84 58-130
Perfluorohexanoic acid 25.6 20.1 ng/L 78 59-130
LCS LCS
Isotope Dilution %Recovery Qualifier Limits
13C8 PFOA 101 52-153
13C3 PFBS 102 34-200
13C3 PFHxS 110 48-169
13C8 PFOS 104 59-155
M2-4:2 FTS 106 35-200
M2-6:2 FTS 106 40-200
M2-8:2 FTS 98 37.200
13C4 PFBA 97 22.174
13C5 PFHxA 102 28.166
Eurofins Lancaster Laboratories Environment Testing, LLC
Page 16 of 27 12/19/2023

QC Sample Results
Client: 3M Company Job ID: 410-152201-1
Project/Site: 3M WMS-WW PFAS Pittsboro, NC
Method: 537 IDA- EPA 537 Isotope Dilution (Continued)
FLab Sample ID: LCSD 410-452083/3-A Client Sample ID: Lab Control Sample Dup
Matrix:Water Prep Type: Total/NA
Analysis Batch:453481 Prep Batch:452083
Spike LCSD LCSD %Rec RPD
Analyte Added Result Qualifier Unit D %Rec Limits RPD Limit
Perfluorooctanoic acid 25.6 22.1 ng/L 86 58-132 5 30
4:2 Fluorotelomer sulfonic acid 23.9 21.2 ng/L 89 61_131 3 30
6:2 Fluorotelomer sulfonic acid 24.3 20.6 ng/L 85 61_132 9 30
Perfluorobutanesulfonic acid 22.7 18.1 ng/L 80 64.132 1 30
8:2 Fluorotelomer sulfonic acid 24.5 19.7 ng/L 80 55-134 1 30 8
Perfluorohexanesulfonic acid 23.3 18.5 ng/L 79 62.130 1 30
Perfluorooctanesulfonic acid 23.7 20.2 ng/L 85 62-130 3 30
Perfluorobutanoic acid 25.6 21.7 ng/L 85 58-130 1 30
Perfluorohexanoic acid 25.6 20.7 ng/L 81 59-130 3 30
LCSD LCSD
Isotope Dilution %Recovery Qualifier Limits
13C8 PFOA 94 52-153
13C3 PFBS 102 34-200
13C3 PFHxS 107 48-169
13C8 PFOS 95 59-155
M2-4:2 FTS 100 35-200
M2-6:2 FTS 95 40-200
M2-8:2 FTS 96 37.200
13C4 PFBA 94 22.174
13C5 PFHxA 97 28.166
Lab Sample ID: MB 410-455137/1-A Client Sample ID: Method Blank
Matrix:Water Prep Type: Total/NA
Analysis Batch:455277 Prep Batch:455137
MB MB
Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac
Perfluorooctanoic acid ND 2.0 0.30 ng/L 12/18/23 07:47 12/19/23 07:02 1
4:2 Fluorotelomer sulfonic acid ND 2.0 0.50 ng/L 12/18/23 07:47 12/19/23 07:02 1
6:2 Fluorotelomer sulfonic acid ND 2.0 0.50 ng/L 12/18/23 07:47 12/19/23 07:02 1
Perfluorobutanesulfonic acid ND 2.0 0.30 ng/L 12/18/23 07:47 12/19/23 07:02 1
8:2 Fluorotelomer sulfonic acid ND 2.0 0.60 ng/L 12/18/23 07:47 12/19/23 07:02 1
Perfluorohexanesulfonic acid ND 2.0 0.20 ng/L 12/18/23 07:47 12/19/23 07:02 1
Perfluorooctanesulfonic acid ND 2.0 0.50 ng/L 12/18/23 07:47 12/19/23 07:02 1
Perfluorobutanoic acid ND 2.0 1.0 ng/L 12/18/23 07:47 12/19/23 07:02 1
Perfluorohexanoic acid ND 2.0 1.0 ng/L 12/18/23 07:47 12/19/23 07:02 1
MB MB
Isotope Dilution %Recovery Qualifier Limits Prepared Analyzed Dil Fac
13C8 PFOA 87 52-153 12/18/23 07:47 12/19/23 07:02 1
13C3 PFBS 82 34-200 12/18/23 07:47 12/19/23 07:02 1
13C3 PFHxS 86 48-169 12/18/23 07:47 12/19/23 07:02 1
13C8 PFOS 84 59-155 12/18/23 07:47 12/19/23 07:02 1
M2-4:2 FTS 88 35-200 12/18/23 07:47 12/19/23 07:02 1
M2-6:2 FTS 85 40-200 12/18/23 07:47 12/19/23 07:02 1
M2-8:2 FTS 86 37.200 12/18/23 07:47 12/19/23 07:02 1
13C4 PFBA 65 22.174 12/18/23 07:47 12/19/23 07:02 1
13C5 PFHxA 92 28.166 12/18/23 07:47 12/19/23 07:02 1
Eurofins Lancaster Laboratories Environment Testing, LLC
Page 17 of 27 12/19/2023

QC Sample Results
Client: 3M Company Job ID: 410-152201-1
Project/Site: 3M WMS-WW PFAS Pittsboro, NC
Method: 537 IDA- EPA 537 Isotope Dilution (Continued)
FLab Sample ID: LCS 410-455137/2-A Client Sample ID: Lab Control Sample
Matrix:Water Prep Type: Total/NA
Analysis Batch:455277 Prep Batch:455137
Spike LCS LCS %Rec
Analyte Added Result Qualifier Unit D %Rec Limits
Perfluorooctanoic acid 25.6 23.7 ng/L 93 58-132
4:2 Fluorotelomer sulfonic acid 23.9 23.8 ng/L 100 61_131
6:2 Fluorotelomer sulfonic acid 24.3 23.9 ng/L 99 61_132
Perfluorobutanesulfonic acid 22.7 20.9 ng/L 92 64.132
8:2 Fluorotelomer sulfonic acid 24.5 24.1 ng/L 98 55-134 8
Perfluorohexanesulfonic acid 23.3 21.4 ng/L 92 62.130
Perfluorooctanesulfonic acid 23.7 22.1 ng/L 93 62-130
Perfluorobutanoic acid 25.6 25.1 ng/L 98 58-130
Perfluorohexanoic acid 25.6 23.7 ng/L 93 59-130
LCS LCS
Isotope Dilution %Recovery Qualifier Limits
13C8 PFOA 85 52-153
13C3 PFBS 82 34-200
13C3 PFHxS 87 48-169
13C8 PFOS 83 59-155
M2-4:2 FTS 86 35-200
M2-6:2 FTS 88 40-200
M2-8:2 FTS 82 37.200
13C4 PFBA 62 22.174
13C5 PFHxA 85 28.166
Lab Sample ID: LCSD 410-455137/3-A Client Sample ID: Lab Control Sample Dup
Matrix:Water Prep Type: Total/NA
Analysis Batch:455277 Prep Batch:455137
Spike LCSD LCSD %Rec RPD
Analyte Added Result Qualifier Unit D %Rec Limits RPD Limit
Perfluorooctanoic acid 25.6 24.8 ng/L 97 58-132 5 30
4:2 Fluorotelomer sulfonic acid 23.9 25.1 ng/L 105 61_131 5 30
6:2 Fluorotelomer sulfonic acid 24.3 24.5 ng/L 101 61_132 3 30
Perfluorobutanesulfonic acid 22.7 20.3 ng/L 90 64.132 3 30
8:2 Fluorotelomer sulfonic acid 24.5 23.7 ng/L 96 55-134 2 30
Perfluorohexanesulfonic acid 23.3 21.5 ng/L 92 62.130 0 30
Perfluorooctanesulfonic acid 23.7 22.7 ng/L 96 62-130 3 30
Perfluorobutanoic acid 25.6 23.1 ng/L 90 58-130 8 30
Perfluorohexanoic acid 25.6 23.2 ng/L 91 59-130 2 30
LCSD LCSD
Isotope Dilution %Recovery Qualifier Limits
13C8 PFOA 86 52-153
13C3 PFBS 84 34-200
13C3 PFHxS 87 48-169
13C8 PFOS 85 59-155
M2-4:2 FTS 89 35-200
M2-6:2 FTS 86 40-200
M2-8:2 FTS 87 37.200
13C4 PFBA 75 22.174
13C5 PFHxA 89 28.166
Eurofins Lancaster Laboratories Environment Testing, LLC
Page 18 of 27 12/19/2023

QC Sample Results
Client: 3M Company Job ID:410-152201-1
Project/Site: 3M WMS-WW PFAS Pittsboro, NC
Method: 2130B-2011 -Turbidity
Lab Sample ID: MB 410-446603/3 Client Sample ID: Method Blank
Matrix:Water Prep Type:Total/NA
Analysis Batch:446603
MB MB
Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac
Turbidity ND 1.0 1.0 NTU 11/22/23 19:30 1
Lab Sample ID: LCS 410-446603/4 Client Sample ID: Lab Control Sample
Matrix:Water Prep Type:Total/NA
Analysis Batch:446603 8
Spike LCS LCS %Rec
Analyte Added Result Qualifier Unit D %Rec Limits
Turbidity 10.0 10 NTU 102 86-110
Eurofins Lancaster Laboratories Environment Testing, LLC
Page 19 of 27 12/19/2023

QC Association Summary
Client: 3M Company Job ID: 410-152201-1
Project/Site: 3M WMS-WW PFAS Pittsboro, NC
LCMS
Prep Batch:452083
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch
410-152201-1 OF-001 Total/NA Stormwater SPE
410-152201-2 OF-002 Total/NA Wastewater SPE
410-152201-3 OF-005 Total/NA Stormwater SPE
410-152201-4-RE OF-008 Total/NA Stormwater SPE
410-152201-5 OF-006 Total/NA Stormwater SPE
410-152201-8 DUP-001 Total/NA Stormwater SPE
410-152201-10 FB-001 Total/NA Water SPE
410-152201-11 FB-002 Total/NA Water SPE
MB 410-452083/1-A Method Blank Total/NA Water SPE
LCS 410-452083/2-A Lab Control Sample Total/NA Water SPE 9
LCSD 410-452083/3-A Lab Control Sample Dup Total/NA Water SPE
Analysis Batch:453481
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch
410-152201-1 OF-001 Total/NA Stormwater 537 IDA 452083
410-152201-2 OF-002 Total/NA Wastewater 537 IDA 452083
410-152201-3 OF-005 Total/NA Stormwater 537 IDA 452083
410-152201-4-RE OF-008 Total/NA Stormwater 537 IDA 452083
410-152201-5 OF-006 Total/NA Stormwater 537 IDA 452083
410-152201-8 DUP-001 Total/NA Stormwater 537 IDA 452083
410-152201-10 FB-001 Total/NA Water 537 IDA 452083
410-152201-11 FB-002 Total/NA Water 537 IDA 452083
MB 410-452083/1-A Method Blank Total/NA Water 537 IDA 452083
LCS 410-452083/2-A Lab Control Sample Total/NA Water 537 IDA 452083
LCSD 410-452083/3-A Lab Control Sample Dup Total/NA Water 537 IDA 452083
Prep Batch:455137
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch
410-152201-3-RE OF-005 Total/NA Stormwater SPE
410-152201-4 OF-008 Total/NA Stormwater SPE
MB 410-455137/1-A Method Blank Total/NA Water SPE
LCS 410-455137/2-A Lab Control Sample Total/NA Water SPE
LCSD 410-455137/3-A Lab Control Sample Dup Total/NA Water SPE
Analysis Batch:455277
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch
410-152201-3-RE OF-005 Total/NA Stormwater 537 IDA 455137
410-152201-4 OF-008 Total/NA Stormwater 537 IDA 455137
MB 410-455137/1-A Method Blank Total/NA Water 537 IDA 455137
LCS 410-455137/2-A Lab Control Sample Total/NA Water 537 IDA 455137
LCSD 410-455137/3-A Lab Control Sample Dup Total/NA Water 537 IDA 455137
General Chemistry
Analysis Batch: 446603
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch
410-152201-6 Upstream-01 Total/NA Stormwater 2130B-2011
410-152201-7 Downstream-01 Total/NA Stormwater 2130B-2011
MB 410-446603/3 Method Blank Total/NA Water 2130B-2011
LCS 4 1 0-44 66 0 3/4 Lab Control Sample Total/NA Water 2130E-2011
Eurofins Lancaster Laboratories Environment Testing, LLC
Page 20 of 27 12/19/2023

Lab Chronicle
Client: 3M Company Job ID: 410-152201-1
Project/Site: 3M WMS-WW PFAS Pittsboro, NC
Client Sample ID: OF-001 Lab Sample ID: 410-152201-1
Date Collected: 11/21/23 11:40 Matrix: Stormwater
Date Received: 11/22/23 10:12
Batch Batch Dilution Batch Prepared
Prep Type Type Method Run Factor Number Analyst Lab or Analyzed
Total/NA Prep SPE 452083 HAT6 ELLE 12/09/23 08:34
Total/NA Analysis 537 IDA 1 453481 15JH ELLE 12/14/23 06:13
Client Sample ID: OF-002 Lab Sample ID: 410-152201-2
Date Collected: 11/21/23 12:30 Matrix:Wastewater
Date Received: 11/22/23 10:12
Batch Batch Dilution Batch Prepared
Prep Type Type Method Run Factor Number Analyst Lab or Analyzed
Total/NA Prep SPE 452083 HAT6 ELLE 12/09/23 08:34
Total/NA Analysis 537 IDA 1 453481 15JH ELLE 12/14/23 06:26 1 0
Client Sample ID: OF-005 Lab Sample ID: 410-152201-3
Date Collected: 11/21/23 11:55 Matrix: Stormwater
Date Received: 11/22/23 10:12
Batch Batch Dilution Batch Prepared
Prep Type Type Method Run Factor Number Analyst Lab or Analyzed
Total/NA Prep SPE 452083 HAT6 ELLE 12/09/23 08:34
Total/NA Analysis 537 IDA 1 453481 15JH ELLE 12/14/23 06:39
Total/NA Prep SPE RE 455137 M4QQ ELLE 12/18/23 07:47
Total/NA Analysis 537 IDA RE 1 455277 DS2G ELLE 12/19/23 08:55
Client Sample ID: OF-008 Lab Sample ID: 410-152201-4
Date Collected: 11/21/23 12:00 Matrix: Stormwater
Date Received: 11/22/23 10:12
Batch Batch Dilution Batch Prepared
Prep Type Type Method Run Factor Number Analyst Lab or Analyzed
Total/NA Prep SPE RE 452083 HAT6 ELLE 12/09/23 08:34
Total/NA Analysis 537 IDA RE 1 453481 15JH ELLE 12/14/23 06:51
Total/NA Prep SPE 455137 M4QQ ELLE 12/18/23 07:47
Total/NA Analysis 537 IDA 1 455277 DS2G ELLE 12/19/23 09:08
Client Sample ID: OF-006 Lab Sample ID: 410-152201-5
Date Collected: 11/21/23 15:00 Matrix: Stormwater
Date Received: 11/22/23 10:12
Batch Batch Dilution Batch Prepared
Prep Type Type Method Run Factor Number Analyst Lab or Analyzed
Total/NA Prep SPE 452083 HAT6 ELLE 12/09/23 08:34
Total/NA Analysis 537 IDA 1 453481 15JH ELLE 12/14/23 07:04
Client Sample ID: Upstream-01 Lab Sample ID: 410-152201-6
Date Collected: 11/21/23 17:00 Matrix: Stormwater
Date Received: 11/22/23 10:12
Batch Batch Dilution Batch Prepared
Prep Type Type Method Run Factor Number Analyst Lab or Analyzed
Total/NA Analysis 2130B-2011 1 446603 UDS7 ELLE 11/22/23 19:30
Eurofins Lancaster Laboratories Environment Testing, LLC
Page 21 of 27 12/19/2023

Lab Chronicle
Client: 3M Company Job ID:410-152201-1
Project/Site: 3M WMS-WW PFAS Pittsboro, NC
Client Sample ID: Downstream-01 Lab Sample ID: 410-152201-7
Date Collected: 11/21/23 17:00 Matrix: Stormwater
Date Received: 11/22/23 10:12
Batch Batch Dilution Batch Prepared
Prep Type Type Method Run Factor Number Analyst Lab or Analyzed
Total/NA Analysis 2130B-2011 1 446603 UDS7 ELLE 11/22/23 19:30
Client Sample ID: DUP-001 Lab Sample ID: 410-152201-8
Date Collected: 11/21/23 00:00 Matrix: Stormwater
Date Received: 11/22/23 10:12
Batch Batch Dilution Batch Prepared
Prep Type Type Method Run Factor Number Analyst Lab or Analyzed
Total/NA Prep SPE 452083 HAT6 ELLE 12/09/23 08:34
Total/NA Analysis 537 IDA 1 453481 I5JH ELLE 12/14/23 07:29
Client Sample ID: FB-001 Lab Sample ID: 410-152201-10 10
Date Collected: 11/21/23 11:40 Matrix:Water
Date Received: 11/22/23 10:12
Batch Batch Dilution Batch Prepared
Prep Type Type Method Run Factor Number Analyst Lab or Analyzed
Total/NA Prep SPE 452083 HAT6 ELLE 12/09/23 08:34
Total/NA Analysis 537 IDA 1 453481 I5JH ELLE 12/14/23 07:42
Client Sample ID: FB-002 Lab Sample ID: 410-152201-11
Date Collected: 11/21/23 12:30 Matrix:Water
Date Received: 11/22/23 10:12
Batch Batch Dilution Batch Prepared
Prep Type Type Method Run Factor Number Analyst Lab or Analyzed
Total/NA Prep SPE 452083 HAT6 ELLE 12/09/23 08:34
Total/NA Analysis 537 IDA 1 453481 I5JH ELLE 12/14/23 07:54
Laboratory References:
ELLE=Eurofins Lancaster Laboratories Environment Testing,LLC,2425 New Holland Pike,Lancaster,PA 17601,TEL[phone]
Eurofins Lancaster Laboratories Environment Testing, LLC
Page 22 of 27 12/19/2023

Accreditation/Certification Summary
Client: 3M Company Job ID: 410-152201-1
Project/Site: 3M WMS-WW PFAS Pittsboro, NC
Laboratory: Eurofins Lancaster Laboratories Environment Testing, LLC
Unless otherwise noted,all analytes for this laboratory were covered under each accreditation/certification below.
Authority Program Identification Number Expiration Date
North Carolina(WW/SW) State 521 12-31-23
The following analytes are included in this report,but the laboratory is not certified by the governing authority. This list may include analytes
for which the agency does not offer certification.
Analysis Method Prep Method Matrix Analyte
2130E-2011 Stormwater Turbidity
537 IDA SPE Stormwater 4:2 Fluorotelomer sulfonic acid
537 IDA SPE Stormwater 6:2 Fluorotelomer sulfonic acid
537 IDA SPE Stormwater 8:2 Fluorotelomer sulfonic acid
537 IDA SPE Stormwater Perfluorobutanesulfonic acid
537 IDA SPE Stormwater Perfluorobutanoic acid
537 IDA SPE Stormwater Perfluorohexanesulfonic acid
537 IDA SPE Stormwater Perfluorohexanoic acid
537 IDA SPE Stormwater Perfluorooctanesulfonic acid Ell537 IDA SPE Stormwater Perfluorooctanoic acid
537 IDA SPE Wastewater 4:2 Fluorotelomer sulfonic acid
537 IDA SPE Wastewater 6:2 Fluorotelomer sulfonic acid
537 IDA SPE Wastewater 8:2 Fluorotelomer sulfonic acid
537 IDA SPE Wastewater Perfluorobutanesulfonic acid
537 IDA SPE Wastewater Perfluorobutanoic acid
537 IDA SPE Wastewater Perfluorohexanesulfonic acid
537 IDA SPE Wastewater Perfluorohexanoic acid
537 IDA SPE Wastewater Perfluorooctanesulfonic acid
537 IDA SPE Wastewater Perfluorooctanoic acid
537 IDA SPE Water 4:2 Fluorotelomer sulfonic acid
537 IDA SPE Water 6:2 Fluorotelomer sulfonic acid
537 IDA SPE Water 8:2 Fluorotelomer sulfonic acid
537 IDA SPE Water Perfluorobutanesulfonic acid
537 IDA SPE Water Perfluorobutanoic acid
537 IDA SPE Water Perfluorohexanesulfonic acid
537 IDA SPE Water Perfluorohexanoic acid
537 IDA SPE Water Perfluorooctanesulfonic acid
537 IDA SPE Water Perfluorooctanoic acid
Eurofins Lancaster Laboratories Environment Testing, LLC
Page 23 of 27 12/19/2023

Method Summary
Client: 3M Company Job ID:410-152201-1
Project/Site: 3M WMS-WW PFAS Pittsboro, NC
Method Method Description Protocol Laboratory
537 IDA EPA 537 Isotope Dilution EPA ELLE
2130B-2011 Turbidity SM ELLE
Protocol References:
EPA=US Environmental Protection Agency
SM="Standard Methods For The Examination Of Water And Wastewater"
Laboratory References:
ELLE=Eurofins Lancaster Laboratories Environment Testing,LLC,2425 New Holland Pike,Lancaster,PA 17601,TEL[phone]
Eurofins Lancaster Laboratories Environment Testing, LLC
Page 24 of 27 12/19/2023

Sample Summary
Client: 3M Company Job ID:410-152201-1
Project/Site: 3M WMS-WW PFAS Pittsboro, NC
Lab Sample ID Client Sample ID Matrix Collected Received
410-152201-1 OF-001 Stormwater 11/21/23 11:40 11/22/23 10:12
410-152201-2 OF-002 Wastewater 11/21/23 12:30 11/22/23 10:12
410-152201-3 OF-005 Stormwater 11/21/23 11:55 11/22/23 10:12
410-152201-4 OF-008 Stormwater 11/21/23 12:00 11/22/23 10:12
410-152201-5 OF-006 Stormwater 11/21/23 15:00 11/22/23 10:12
410-152201-6 Upstream-01 Stormwater 11/21/23 17:00 11/22/23 10:12
410-152201-7 Downstream-01 Stormwater 11/21/23 17:00 11/22/23 10:12
410-152201-8 DUP-001 Stormwater 11/21/23 00:00 11/22/23 10:12
410-152201-10 FB-001 Water 11/21/23 11:40 11/22/23 10:12
410-152201-11 FB-002 Water 11/21/23 12:30 11/22/23 10:12
Ell
Eurofins Lancaster Laboratories Environment Testing, LLC
Page 25 of 27 12/19/2023

ies Environme
Chain of Custody Record tiff curofins
7 Environment Testing
410-152201 Chain of Custody Sampler Lab PM Carrier Tracking No(s) COC rt.
Brown,Nicole 410-101664-29024 1
Client Contact Phone. E•Mail State of Origin Page
Daniel Christman Nicole [e-mail] corn Page 1 of 1
Company PWSIO Jon#
3M Company Analysis Requested
Address Due Date Requested: Preservation Codes:
4191 Hwy 67 South A-IiCL M•Hexane
City. TAT Requested(days): e•NaOH N-None
Moncure c-Zn Acetate 0-AsNa02
P-Na204S
State.LP v D-Nitric Acid 0.Na2S03
NC,27559 Compliance Project: A Yes A No E-NaH504 R•Na2S203
F-MeOH S-H2SO4
Phone PO# w G-Amchlor
919-642-4010(Tel) Purchase Order Requested a LL H•Ascorbic Acid T•TSP Dodecahydrate
o. U-Acetone
Email WO# z I-Ice V-MCAA
J J.DI Water
dchristman@mmm corn m 2 y K-EDTA W-pH 4-5
Project Name Protect# a O = q, L-EDA Y-Tnzma
q _ m Z•other(specify)
3M WMS-WW PFAS Pittsboro,NC 41017322 o d = /
�.( c
sSOw# E is d v c other
Site 0
N 0
fn in `5 l
ib-
L
Sample Matrix 117.
0 S E
3
Type (sv s..,:m...nr. iL o= E z
.
Sample (C=Comp, o•.ast.wu, m € U =a
Sam.le Identification Sample Date Time G=grab) er•ru...n•.ir) (C 0- o. t- Special Instructions/Note:
— Preservation Code. XX N
v Water —_
c1�t 111t���2�1 t1 �iQ & ��
3 M 0" 1.- \121123 12._ x G Water --f -----
17 M f,t) S \\I --IZ3 \ 5 V Water
1) M 00 11 12i -3 (2 0° & Water Y
AA nti•6 11lt 1/z3 3: Ye (7 Water — _ 14
K-vo4'ry_GLM 001 ��� 2-3�� 5;Vp Water
Y
-
dk o w tn.5 �•tevt --c90 k \t(IA(Z2 5=YuW �,iv`C7
I�
I l I
Possible Hazard Identification Sample Disposal(A fee maybe assessed if samples are retained longer than 1 month)
CI
0 Non-Hazard 0 Flammable 0Skin Irritant Poison B Unknown U Radiological 0 Return To Client O Disposal By Lab C..] Archive For Months
Deliverable Requested I,II.III,IV,Other(specify) Special Instructions/QC Requirements.
Empty Kit Relinquished by Date ITime !Method of 5h:pment
Relinquished by Date/Time 1 �� V Company Received by Dute/T,ne Company
CAiit'i
Relinquished by G• '—' Company Received by 'r -`�Date/Time Company
Relinquished by DaterT me: Company Received by Date. ime Com any
i!: is /0% ,lPit
Cust y Seals Intact: Custody Seal No.: vp ( I,, 1 Cooler Temperature(s)`C and Other Remarks
nr-tYes No 1) �12Z I -6� � 1 3'L ,3,3 0." 3 1. ..1
Vet 06i08,2011
/// Page 26 of 27 12/19/202�

Login Sample Receipt Checklist
Client:3M Company Job Number:410-152201-1
Login Number: 152201 List Source:Eurofins Lancaster Laboratories Environment Testing,LLC
List Number: 1
Creator:McCaskey,Jonathan
Question Answer Comment
The cooler's custody seal is intact. True
The cooler or samples do not appear to have been compromised or True
tampered with.
Samples were received on ice. True
Cooler Temperature acceptable,where thermal pres is required(</=6C,not True
frozen).
Cooler Temperature is recorded. True
WV:Container Temp acceptable,where thermal pres is required(</=6C,not N/A
frozen).
WV: Container Temperature is recorded. N/A
COC is present. True
COC is filled out in ink and legible. True
COC is filled out with all pertinent information. True
There are no discrepancies between the containers received and the COC. False Refer to Job Narrative for details.
Sample containers have legible labels. True
Containers are not broken or leaking. True
Sample collection date/times are provided. True
Appropriate sample containers are used. True
Sample bottles are completely filled. True
There is sufficient vol.for all requested analyses. True
Is the Field Sampler's name present on COC? False Refer to Job Narrative for details.
Sample custody seals are intact. N/A
VOA sample vials do not have headspace>6mm in diameter(none,if from N/A
WV)?
Eurofins Lancaster Laboratories Environment Testing,LLC
Page 27 of 27 12/19/2023