NCG020330_MONITORING INFO_20200106

f,ZILo
STORMWATER DIVISION CODING SHEET
NCG PERMITS
PERMIT NO.
/V U& Dc,
DOC TYPE
❑ HISTORICAL FILE
❑XMONITORING REPORTS
DOC DATE
❑ QD,)b o ( p
YYYYMMDD

DOC TYPE 1 ❑ HISTORICAL FILE
❑ MONITORING REPORTS
DOC DATE I ❑
YYYYM M D D

3M
January 2, 2020
3M Industrial Minerals Product Division
4191 Highway 87 South
Moncure, NC. 27559
North Carolina Department of Environmental Quality
Division of Water Resources
Attn: DWR Central Files
1617 Mail Service Center
Raleigh, NC 27699-1617
Subject: 2019 Jul -Dec Semi -Annual and
Annual Summary DMR - Stormwater
Permit Number: NCG020000
Certificate of Coverage Number: NCG020330
Via Certified Mail: 7018 3090 0000 8465 5242
Dear Sir or Ma'am,
JAN 0 8 2020
OEN7tz,,, rIlEB SECTIO,^:
Please find enclosed the original and one copy of the required Annual Summary DMR —
Stormwater for the calendar year of 2019 and it also serves as the July — December Semi -Annual
Report for the Plant for 2019.
Please feel free to contact me if you have any questions or comments regarding this report.
Best Regards,
Stanley B. arter
Environmental Engineer
cc: Blake Arnett, 3M Pittsboro Plant Manager
Carle Mathison, 3M Corporate Environmental
Tina Mumm, 3M Corporate Environmental
P [phone]
F [phone]

STORMWATER DISCHARGE OUTFALL (SDO)
MONITORING REPORT
Permit Number NCG 020330
FACILITY NAME 3M Pittsboro
PERSON COLLECTING SAMPLE(S) Stanley B. Carter
CERTIFIEDLABORATORY(S) Pace Lab# 67
Lab # 40
Part A: Specific Monitoring Requirements
SAMPLES COLLECTED DURING CALENDAR YEAR: 2019
(This monitoring report shall be received by the Division no later than 30 days from
the date the facility receives the sampling results from the laboratory.)
COUNTY Chatham
PHONE NO. L919, 642-4009
SIGNATURE OF PERMITTEE OR DESIGNEE
REQUIRED ON PAGE 2.
Outfall
No.
Date
Sample
Collected
50050
00530
00076
00545
00400
Total
Flow (if app.)
Total
Rainfall
Total
Suspended
Solids
Turbidity
(NTU)
Settleable
Solids
pH
standard units
mo/dd/ r
MMG
inches
mg/1
MINI
6-9
002
6/5/2019
0.148
0.13
11.8
18.1
ND
004
6/5/2019
0.028
0.13
No Flow
005
6/5/2019
0.168
0.13
1 11.6
16.7
ND
002
12/10/19
0.624
0.55
14.9
50.5
ND
004
12/10/19
0.118
0.55
10.4
7.5
ND
005
12/10/19
0.712
0.55
6.5
7.4
ND
Does this facility perform Vehicle Maintenance Activities using more than 55 gallons of new motor oil per month? _X_ yes _no
(if yes, complete Part B)
Part B• Vehicle Maintenance Acti ity Monitoring Requirements
Outfall
No.
Date
Sample
Collected
50050
00556
00530
00400
Total Flow
(if applicable)
Total
Rainfall
Oil & Grease
(if appl.)
Non -polar
O&G/TPH
(Method 1664
SGT-HEM), if
appl.
Total
Suspended
Solids
pH
New Motor
Oil Usage
mo/dd/ r
MG
inches
m /I
m
unit
al/mo
006
6/5/2019
0.006
0.13
No Flow
170
006
12/10/19
0.027
0.55
ND
2.7
7.27
178
Form SWU-247, last revised 21212012
Pagel of 2

STORM EVENT CHARACTERISTICS:
Date _12/10/2019
Total Event Precipitation (inches): 0.55
Event Duration (hours): (only if applicable — see permit.)
(if more than one storm event was sampled)
Date
Total Event Precipitation (inches):
Event Duration (hours): (only if applicable — see permit.)
Mail Original and one copy to:
Division of Water Quality
Attn: Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
"1 certify, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a
system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person
or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the
best of my knowledge and belief, true, accurate, and complete. 1 am aware that there are significant penalties for submitting false information,
including the possibpy of fines and imprisonment for knowing violations."
re of
Form SWU-247, last revised 21212012
Page 2 of 2

aceAnalXical e
rnw.pacalahs.com
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
December 24, 2019
Mr. Jim Zieglmeier
3M Corporation
4191 Highway 87 South
Moncure, NC 27559
RE: Project: OF-002-006
Pace Project No.: 92457000
Dear Mr. Zieglmeier:
Enclosed are the analytical results for sample(s) received by the laboratory on December 11, 2019.
The results relate only to the samples included in this report. Results reported herein conform to the
most current, applicable TNI/NELAC standards and the laboratory's Quality Assurance Manual,
where applicable, unless otherwise noted in the body of the report.
If you have any questions concerning this report, please feel free to contact me.
Sincerely,
o.qY1.
Angela Baioni
[e-mail]
[phone]
Project Manager
Enclosures
cc: Mr. Stanley Carter, 3M Corporation
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 1 of 16

aceAnalj&al e
e N pacetatncem
Pace Analytical Services, LLC
9800 Kinmy Ave. Suite 100
Huntersville, NC 28078
[phone]
CERTIFICATIONS
Project: OF-002-006
Pace Project No.: 92457000
Pace Analytical Services Charlotte
9800 Kincey Ave. Ste 100, Huntersville, NC 28078
South Carolina Certification #: 99006001
Louisiana/NELAP Certification # LA170028
Florida/NELAP Certification #: E87627
North Carolina Drinking Water Certification #: 37706
Kentucky UST Certification #: 84
North Carolina Field Services Certification #: 5342
Virginia/VELAP Certification #: 460221
North Carolina Wastewater Certification #: 12
Pace Analytical Services Eden
205 East Meadow Road Suite A, Eden, NC 27288 North Carolina Wastewater Certification #: 633
North Carolina Drinking Water Certification #: 37738 Virginia/VELAP Certification #: 460025
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC. Page 2 of 16

aceAnalytical e
w .0a slllnx
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
SAMPLE ANALYTE COUNT
Project:
OF-002-006
Pace Project No.:
92457000
Analytts
Lab ID
Sample ID
Method
Analysts
Reported
Laboratory
92457000001
OF-002
SM
213OB-2011
NMH
1
PASI-E
SM
25400-2011
AMI
1
PASI-E
SM
2540E-2011
NMH
1
PASI-E
92467000002
OP-003
SM
213OB-2011
NMH
1
PASI-E
SM
2540D-2011
AMI
1
PASI-E
SM
254OF-2011
NMH
i
PASI-E
92457000003
OF-004
SM
213OB-2011
NMH
1
PASI-E
SM
254OD-2011
AMI
1
PASI-E
SM
254OF-2011
NMH
i
PASI-E
92457000004
OF-006
SM
213OB-2011
NMH
1
PASI-E
SM
254OD-2011
AMI
1
PASI-E
SM
2540E-2011
NMH
1
PASI-E
92457000005
OF-006
SM
213OB-2011
NMH
1
PASI-E
SM
254OD-2011
AMI
1
PASI-E
SM
254OF-2011
NMH
1
PASI-E
EPA 1664E
HH
1
PASI-C
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, -LC.
Page 3 of 16

aceAnalytical e
wwv.pacdabasara
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
ANALYTICAL RESULTS
Project: OF-002-006
Pace Project No.: 92457000
Sample: OF-002
Lab ID: 92457000001 Collected:
12/10/1915:15
Received: 12/11/1911:04 Matrix: Water
Parameters
Results Units Report Limit
OF
Prepared Analyzed CAS No. Qual
2130E Turbidity EDN
Analytical Method: SM 213OB-2011
Turbidity
50.5 NTU
0.50
1
12/12/1913:47
26400 Total Suspended Solids
Analytical Method: SM 2540D-2011
Total Suspended Solids
14.9 mg/L
2.5
1
12/12/19 13:30
264OF Total Settleable Solids
Analytical Method: SM 2540E-2011
Total Settleable Solids
NO mUUhr
0.10
1
12/12/19 10:25
Sample: OF-003
Lab ID: 92457000002 Collected:
12/10/19 15:43
Received: 12/11/19 11:04 Matrix: Water
Parameters
Results Units Report Limit OF
Prepared Analyzed CAS No. Qual
2130B Turbidity EDN
Analytical Method: SM 213OB-2011
Turbidity
2.8 NTU
0.50 1
1211211913:49
2540D Total Suspended Solids
Analytical Method: SM 254OD-2011
Total Suspended Solids
NO mg/L
2.5 1
12/12/19 13:30
264OF Total Settleable Solids
Analytical Method: SM 2540E-2011
Total Settleable Solids
NO mL/Uhr
0.10 1
12/12/19 10:25
Sample: OF-004
Lab ID: 92467000003 Collected:
12/10/19 15:55
Received:
12/11/19 11:04 Matrix: Water
Parameters
Results Units Report Limit
OF
Prepared
Analyzed CAS No. Qual
2130E Turbidity EDN
Analytical Method: SM 213OB-2011
Turbidity
7.6 NTU
0.50
1
12/1211913:50
2640D Total Suspended Solids
Analytical Method: SM 254OD-2011
Total Suspended Solids
10.4 mg/L
2.5
1
12/12/19 13:31
264OF Total Settleable Solids
Analytical Method: SM 254OF-2011
Total Settleable Solids
NO mUUhr
0.10
1
12/12/19 10:25
Sample: OF-005
Lab ID: 92457000004 Collected:
12/10/19
16:28
Received:
12/11/19 11:04 Matrix: Water
Parameters
Results Units Report Limit
OF
Prepared
Analyzed CAS No. Qual
21308 Turbidity EDN
Analytical Method: SM 213OB-2011
Turbidity
7.4 NTU
0.50
1
12112/1913:48
Date: 12/24/2019 03:41 PM
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, -LC.
Page 4 of 16

aceAnalytical e
■wo.pacalatacon,
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
ANALYTICAL RESULTS
Project: OF-002-006
Pace Project No.: 92467000
Sample: OF-006 Lab ID: 92457000004 Collected: 12/10/19 15:28 Received: 12111/19 11:04 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
2640D Total Suspended Solids Analytical Method: SM 254OD-2011
Total Suspended Solids 6.5 mg/L 2.6 1 12/12/19 13:31
264OF Total Settleable Solids Analytical Method: SM 254OF-2011
Total Settleable Solids ND mL/Uhr 0.10 1 12/12/19 10:25
Sample: OF-006
Parameters
Lab ID: 92457000006 Collected: 12/10/19 16:07
Results Units Report Limit DF
Received: 12/11/19 11:04 Matrix: Water
Prepared Analyzed CAS No. Qua]
2130E Turbidity EDN
Analytical Method: SM 213OB-2011
Turbidity
7.4 NTU
0.50
1
12/12/1913:51
2540D Total Suspended Solids
Analytical Method: SM 2540D-2011
Total Suspended Solids
2.7 mg/L
2.5
1
12/12/19 13:32
254OF Total Settleable Solids
Analytical Method: SM 254OF-2011
Total Settleable Solids
ND mUL/hr
0.10
1
12/12/19 10:25
1664 SGT-HEM, TPH
Analytical Method: EPA 1664B
Total Petroleum Hydrocarbons
ND mg/L
5.0
1
12/24/19 07:26
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 12/24/2019 03:41 PM without the written consent of Pace Analytical Services, L-C. Page 5 of 16

aceAnalytical
trtw.11anlatn.wm
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersvllle, NC 28078
[phone]
QUALITY CONTROL DATA
Project: OF-002-006
Pace Project No.: 92457000
QC Batch: 514489 Analysis Method: SM 213OB-2011
QC Batch Method: SM 2130B-2011 Analysis Description: 2130B Turbidity EDN
Associated Lab Samples: 92457000001, 92457000002, 92457000003, 92457000004, 92457000005
METHOD BLANK: 2757551 Matrix: Water
Associated Lab Samples: 92457000001, 92457000002, 92457000003, 92457000004, 92457000005
Blank Reporting
Parameter Units Result Limit Analyzed Qualifiers
Turbidity NTU NO 0.50 12/12/1913:46
LABORATORY CONTROL SAMPLE: 2757552
Spike LCS LCS % Rec
Parameter Units Conc. Result %Rec Limits Qualifiers
Turbidity NTU 20 20.2 101 90-110
SAMPLE DUPLICATE: 2757553
92457000001 Dup
Parameter Units Result Result RPD Qualifiers
Turbidity NTU 50.5 51.1 1
Results presented on this page are In the units Indicated by the "Units" column except where an alternate unit IS presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 12/24/2019 03:41 PM without the written consent of Pace Analytical Services, LLC. Page 6 of 16

aceAnalytical o
lowicineillinixere
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
QUALITY CONTROL DATA
Project: OF-002-006
Pace Project No.: 92457000
QC Batch: 514487 Analysis Method: SM 254OD-2011
QC Batch Method: SM 254OD-2011 Analysis Description: 2540D Total Suspended Solids
Associated Lab Samples: 92457000001, 92457000002, 92457000003, 92457000004, 92457000005
METHOD BLANK: 2757534 Matrix: Water
Associated Lab Samples: 92457000001, 92457000002, 92457000003, 92457000004, 92457000005
Blank Reporting
Parameter Units Result Limit Analyzed Qualifiers
Total Suspended Solids mg/L NO 2.5 12/12/19 13:29
LABORATORY CONTROL SAMPLE:
2757535
Spike 1-CS LCS
% Rec
Parameter
Units
Conc. Result %Rec
Limits Qualifiers
Total Suspended Solids
mg/L
250 264 106
90-110
SAMPLE DUPLICATE: 2757536
92457148003 Dup
Parameter
Units
Result Result RPD
Qualifiers
Total Suspended Solids
mg/L
15.8 15.0
5
SAMPLE DUPLICATE: 2757537
92456984001 Dup
Parameter Units Result Result RPD Qualifiers
Total Suspended Solids mg/L 193 171 12
Results presented on this page are In the units Indicated by the "Units" column except where an alternate unit is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 12/24/2019 03:41 PM without the written consent of Pace Analytical Services, I.I.G.
Page 7 of 16

aceAnalytical
arr.pacelabscsm
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
QUALITY CONTROL DATA
Project: OF-002-006
Pace Project No.: 92457000
QC Batch: 514442 Analysis Method: SM 254OF-2011
QC Batch Method: SM 254OF-2011 Analysis Description: 2540F Total Satiable Solids
Associated Lab Samples: 92457000001, 92457000002, 92457000003, 92457000004, 92457000005
METHOD BLANK: 2757219 Matrix: Water
Associated Lab Samples: 92457000001, 92457000002, 92457000003, 92457000004, 92457000005
Blank Reporting
Parameter Units Result Limit Analyzed Qualifiers
Total Settleable Solids mL/IJhr NO 0.10 12/12/19 10:25
SAMPLE DUPLICATE: 2757220
92457005001 Oup
Parameter Units Result Result RPD Qualifiers
Total Settleable Solids mL/L/hr NO NO
Results presented on this page are In the units Indicated by the "Units" column except where an alternate unit Is presented to the right of the result
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 12/24/2019 03:41 PM without the written consent of Pace Analytical Services, LLC.
Page 8 of 16

aceAnalytical
tra r.pacolobs.csm
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
QUALITY CONTROL DATA
Project: OF-002-006
Pace Project No.: 92467000
QC Batch: 516529 Analysis Method: EPA 1664E
QC Batch Method: EPA 1664E Analysis Description: 1664 SGT-HEM, TPH
Associated Lab Samples: 92457000005
METHOD BLANK: 2767443
Associated Lab Samples: 92457000005
Parameter Units
Total Petroleum Hydrocarbons mg/L
LABORATORY CONTROL SAMPLE: 2767444
Parameter Units
Total Petroleum Hydrocarbons mg/L
Matrix: Water
Blank Reporting
Result Limit Analyzed Qualifiers
NO 5.0 12/24/1907:09
Spike LCS LCS % Rae
Cone. Result % Rae Limits Qualifiers
20 20.9 104 64-132
MATRIX SPIKE SAMPLE: 2767445
92456863001 Spike MS MS %Rec
Parameter Units Result Cone. Result % Rae Limits Qualifiers
Total Petroleum Hydrocarbons mg/L NO 20 5.4 17 64-132 MI
Results presented on his page am In the units Indicated by the "Units" column except where an alternate unit is presented to the right of the result
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 12/24/2019 03:41 PM without the written consent of Pace Analytical Services, U.C.
Page 9 of 16

aceAnalytical e
eme.pecelebszo n
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Hunlersville, NC 28078
[phone]
QUALIFIERS
Project: OF-002-006
Pace Project No.: 92457000
DEFINITIONS
DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot.
NO - Not Detected at or above adjusted reporting limit.
TNTC - Too Numerous To Count
J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit.
MDL-Adjusted Method Detection Limit.
PQL - Practical Quantitation Limit.
RL - Reporting Limit - The lowest concentration value that meets project requirements for quantitative data with known precision and
bias for a specific analyte in a specific matrix.
S - Surrogate
1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte is
a combined concentration.
Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values.
LCS(D) - Laboratory Control Sample (Duplicate)
MS(D) - Matrix Spike (Duplicate)
DUP - Sample Duplicate
RPD - Relative Percent Difference
NC - Not Calculable.
SG - Silica Gel - Clean -Up
U - Indicates the compound was analyzed for, but not detected.
Acid preservation may not be appropriate for 2 Chloroethylvinyl ether.
A separate vial preserved to a pH of 4-5 is recommended in SW846 Chapter 4 for the analysis of Acrolein and Acrylonitrile by EPA
Method 8260.
N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for
each analyte is a combined concentration.
Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes.
TNI -The NELAC Institute.
LABORATORIES
PASI-C Pace Analytical Services - Charlotte
PASI-E Pace Analytical Services - Eden
ANALYTE QUALIFIERS
Ml Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 12/24/2019 03:41 PM without the written consent of Pace Analytical Services, L-C. Page 10 of 16

YMAnalyticala
wwe.pacelebs.cam
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
QUALITY CONTROL DATA CROSS REFERENCE TABLE
Project: OF-002-006
Pace Project No.: 92457000
Lab ID Sample ID QC Batch Method QC Batch Analytical Method
92457000001
OF-002
SM
213OB-2011
514489
92457000002
OF-003
SM
213OB-2011
514489
92457000003
OF-004
SM
213OB-2011
514489
92457000004
OF-006
SM
213OB-2011
514489
92457000005
OF-006
SM
213OB-2011
514489
92457000001
OF-002
SM
25400-2011
514487
92457000002
OF-003
SM
254OD-2011
514487
92457000003
OF-004
SM
254OD-2011
514487
92457000004
OF-005
SM
2540D-2011
514487
92457000005
OF-006
SM
254OD-2011
514487
92457000001
OF-002
SM
254OF-2011
514442
92457000002
OF-003
SM
2540E-2011
514442
92457000003
OF-004
SM
254OF-2011
514442
92457000004
OF-005
SM
2540E-2011
514442
92457000005
OF-006
SM
254OF-2011
514442
92457000005 OF-006 EPA 16648 516529
Dale: 12/24/2019 03:41 PM
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Analytical
Batch
Page 11 of 16

' Document Name:
Document Revised: February 7, 2018
Simple Condition Upon Real t SLUR
Pa e 1 of 2
.fin/.
. ��X"888
Document No.:
Ltsuing Authority:
F-CAR-CS-033-Rev.08
Pace Carolinas Qua tNtice
Laboratory receiving samples:
Asheville [] Eden❑ Greenwood ❑ Huntersville ❑ RalelghK Mechanicsville[]
?ent Name: Project WUN yL4�
Courier. J❑Feed tEx UPS USPS Client I II I III III II I II I (' II III
❑ Commercial ®pace ❑Other._ ' 92457000
Custody Seal Present? Dyes KNo - Seale Intact? ❑Yes ' BZNO .
Dam/InItIals Person Examining Comenuc.ZAH /2-1/-12
Packing Material: []Bubble Wrap ❑Bubble.Bags None ❑ - Dther Biological Tlssue Frozen?
Thermometer: []Yes []No &/A
❑Ica Gun ID: Om Type of Ice: 4wet []Blue ❑Nora
Cooler Temp ('Q: 3. 11 Correction Factor: Add/Subtract ('C) O.C)
Temp should be above (teasing to 6'C
Cooler Temp Corrected ('C): 3 - Ll ' ❑Samples out oftemp criteria. samples on ix, mding process
has begun
USDA Regulated Soil I& N/A, water sample)
Did samples originate In a quarantine zone within the United States: CA, NY, or SC (check maps)? Did samples originate from a famign source (IntunatlonalN,
nyh HNn Indudlne Hawail and Puerto RIml7 [ Yes ❑Na
Comments Dlscre anc :
Chain of Custody Present?
WW
No
[]N/A
2.
Samples Arrlved within Hold Time?
Des
C3No
N/A
2.
Short Hold Time Analysis <72 hr.)?
&Yes
No
ONIA
3.
Rush Turn Around Tlme Requested?
ns
KNo
NA
4.
Sufficient Volume?
Eyes
No
ONJA
5.
Correct Contalners Used?
-Pace Containers Used?
Yes
a
Ohio❑N/A
HNo
N/A
6.
Containers Intact?
Des
No
N/A
7.
Olssolved analysis: Samples Field Filtered?
13yes
02o
QN A
g.
Sample Labels Match COO
-Includes Date/Time/ID/Anal is Matrix:.%
CYw
❑No
❑N/A
9. .
Heads ace in VOA Vials (>5.6mm)7
Yes
No
/A
10. '
Trip Blank Present?
Trip Blank Custody Seals Present?
Des
aes
[]NO
ElNo
PN/A
N/A
11.
COMMENTS/SAMPLE DLSCREPANCY
Lot ID of split containers:
CLIENT NOTIFICATION/RESOLUTION
Person contacted: Date/nme:
Project Manager SCURF Review: ft( ) ( j 1?
Project Manager SRF Review:
T 111 1k
Field Data Required? []Yes []NO
Date: 0
Date: l ri J� L9
Page 12 of 16

Document Name:
Daument Revised: February 7, 2018
Sample condition Upon Receipt SOUR
Page 1 of 2
Document No.:
Issuing Authority:
,. 8MAnalXkal
FCAR-CS•03341llev,06
Pace Carolinas Quality Office
'Check mark top half of box If pH and/or dechlorination Is
verified and within the acceptance range for preservation
samples.
Exceptlons: VOA, Coliform, TOC, Oil and Grease, DRO/8015 (water) DOC, UHg
"Bottom half of box Is to list number of bottle
PN: RNB Due Date: 12/26/19
CLIENT: 92-314 CORP
e
�
e
long
�■n
on
pH Adjustment Log for Preserved Samples
Sample ID
Type of preservable
pH upon rocelpt
Date preservation adjusted
Time preservation
adjusted
Amount of Preservative
added
Lot a
Note: Whenever there is a discrepancy affecting North Carolina compliance samples, a copy of this form will be sent to the North Carolina MINA Certification Office Ile.
Out of hold, Incorr act preservative, out of temp, Incorrect containers.
Page 13 of 16

Document Name:
Liocument xevisea: ,
Sample Condition Upon Recel t(SCUR)
Page 1 of2
• Document No.:
IssuingAuthority:
,, CB�,,��,aJCg/
^sm'!''
F-CAR-CS-033-Re06
Pace Carolinas Quali Office
*Check mark top half of box if pH and/or dechlorination Is
verified and within the acceptance range for preservation
samples. — — — --- — — —
Exceptions: VOA, Coliform, TOC, Oil and Grease, DROJ8015 (water) DOC, LLHg
"Bottom half of box Is to list number of battle
WUFF : Uz40 r uuu i
PM: AMB Due Date: 12/26/19
CLIENT: 82-3M CORP
i
milk
�a►
■
■naa■
pH Adjustment Log for Preserved Samples
Sample ID
Type of Preservative'
pH upon receipt
Date preservation adjusted
Time preservation
adjusted
Amount of Preservative
added
lot If
Note: Whenever there is a discrepancy affecting North Carolina compliance samples, a copy of this form will be sent to the North Carolina DEHNR Unification Office (i.e.
Out of hold, Incorrect preservative, out of temp, incorrect containers.
Page 14 of 16

ceAraocal''
CHAIN -OF -CUSTODY I Analytical Request Document
Thecrams-casmdlr Is a LEGAL DOCUMENT. All mkrse fieMs must be ==Oiled amaa *.
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section B Section C / m
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MY
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4191 Hwy 87 South COPYTv.
[e-mail]
com Nmnc 3M
REGULATORY AGENCY
Malaria, NC 27559
Addm= 4191 Hwy 87 S, MalCtce, NC 27559
r+. NpDES r GROUND WATER i- OMNYJNG WATER ,
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ADDI IONALCOMPIE1rS
REUIW1mi3)E riAFFdL11RIM
'DATE
TIME
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DATE' .
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SAMPLER M ME AXI) SIGNATURE .
PRaTNamea SAMPLER: B. Carta
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SIGNATURE eRSAMPLEC
DATE STPed
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12/11/19
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CHAIN -OF -CUSTODY / Analytical Request Document
The Clratrr WAMb ly is a LEGAL DOCUMENT. An relevartl fields must 0e a mpleted accurw".
- wATER ,_ ,
C1
SMPLE ID
A-* IDS MUST BE UNIQUE 7sSIUE TS
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Outfall Drainage Area and Flow / Rainfall Calculation Spreadsheet
E. Funk - 12/0712010
Instructions:
Insert the rainfall amount into the "Rainfall (inches) column and the remainder of the values
will be cacluated. The output of "Volume (MG)" is to be recorded on the DMR
Conversions
1 acre =
43,560 sqft
1 foot =
12 inches
1 cf =
7.48 gallons
Rainfall = 0.55 inches For rainfall on 12-10-2019
Outfall
Number
Drainage
Area (acre
Drainage
Area (sqft)
Rainfall
(inches)
Rainfall
(feet)
Volume
(cub. Feet)
Volume
(gallons)
Volume
(MG)
001
63.2
2752,992
0.55
0.045833
126,179
943,817
0.944
002
41.8
1,820,808
0.55
0.045833
83,454
624,234
0.624
004•
7.9
344124
0.55
0.045833
15,772
117,977
0.118
005
47.7
2,077,812
0.55
0.045833
95,233
712,343
0.712
006
1.8
78,408
0.55
0.045833
3,594
26,881
0.027
008
46.5
2,025,540
0.55
0.045833
92,837
694,423
0.694
Outfall 004 listed drainage area includes Outfall 003 drainage area as outfall 003 discharges into Outfall 004
Outfall 003 is for mine dewatering basin and ftowmeters are used for reporting dischange on a quarterly basis
Outfall 007 is the instream outfall and is not calcuated due to the fact that water outside of the property Flows past through this outfall

STORMWATER DIVISION CODING SHEET
NCG PERMITS
PERMIT NO.
/VU&
DOC TYPE
❑ HISTORICAL FILE
MONITORING REPORTS
DOC DATE
❑ a ,o
YYYYMMDD

DOC TYPE 1 ❑ HISTORICAL FILE
❑ MONITORING REPORTS
DOC DATE I ❑
YYYYMMDD

\_1_1_I_I
January 2, 2020
3M Industrial Minerals Product Division
4191 Highway 87 South
Moncure, NC. 27559
North Carolina Department of Environmental Quality
Division of Water Resources
Attn: DWR Central Files
1617 Mail Service Center
Raleigh, NC 27699-1617
Subject: 2nd Semi -Annual Mine Dewatering Report'19 and
Annual Summary DMR for `19
Permit Number: NCG020000
Certificate of Coverage Number: NCG020330
Via Certified Mail: 7018 3090 0000 8465 5235
Dear Sir or Ma'am,
F?ECEA1,+:1)
'AN 0 6 2020
Please find enclosed two signed copies and one copy of the required 2nd Semi -Annual Mine
Dewatering Report and the Annual Summary DMR for'19.
Please feel free to contact me if you have any questions or comments regarding this report.
Best Regards,
S� !3 Ct4
Stanley Carter
Environmental Engineer
cc: Blake Arnett, 3M Pittsboro Plant Manager
Carle Mathison, 3M Corporate Environmental
Tina Mumm, 3M Corporate Environmental
Doede Conner, 3M Division Environmental
P [phone]
F [phone]

ANNUAL SUMMARY DISCHARGE MONITORING
REPORT (DMR) —WASTEWATER
SUBMIT TO CENTRAL OFFICE*
General Permit No. NCG020000
Calendar Year 2019
'Report ALL WASTEWATER monitoring data on this form (include "No Flow"/"No Discharge" and Limit Violations) from
the previous calendar vear to the DEQ by MARCH 1 of each vear.
Certificate of Coverage No. NCG020330 RECEIVED
Facility Name: 3M Pittsboro j A i 0 6 2029
County: Chatham
FIL Phone Number: (_919) 642-4009 �CW R �c-lCT" IO1N Total no. of outfalls monitored 1
�1
Certified Laboratory Pace Lab # 67
Lab # 40
Wastewater (WW) Discharge Outfall No. 003
Is this an industrial sand mine (See 40 CFR §436 Subpart D)?
Yes ❑
No
Does this outfall discharge WW to SA waters?
Yes ❑
No
Does this outfall discharge WW to SB or PNA waters?
Yes ❑
No
Does this outfall discharge WW to HQW or ORW waters?
Yes ❑
No
If so, what is the 7010 flow rate? NA or Tidally influenced waters,
7Q10 not available ❑
Does this outfall discharge WW to Trout jr) designated waters?
Yes ❑
No
Were there any limit violations in the calendar year?
Yes ❑
No
Outfall No.
Total Flow
MG
pH,
SU
TSS,
mg/I
SS,
ml/I
ilapplicable
Discharge
Turbidity,
NTU
Upstream
(U) Turbidity,
NTU
Downstream
(D) Turbidity,
NTU
Fecal
Coliform,
col/100 ml
SA
Effluent
Limitations
Mo. Ave I Daily Max.
Indicate NO FLOW
Ilapplkable
freshwater
6.0-9.0
saltwater
6.8-8.5
Industrial Sand
25/45
HQWer ORW
20/30
HQWorORW
Kid Tr or PNA
10115
HOW, OR",
SA, SS, PNa
or any Trout
0.1/0.2
No Limit
Quality Curete Water
Standard
that applies:
60/25/10
NIA
Water
Standard Quality
applies
NIA
Standard applies Water
N/A
Date Sample
Collected,
mo/dd/ r
MEMEMMMM
06/06/19
63.55 *
No flow
12/10/19
10.28 *
8.09
ND
ND
2.8
*Flow is measured with meters and reported as total flow in MG
as Ph testing is done on site as soon as possible after sample taken
Permit Date 10/112015 - 9/30/2020
Last Revised 10-2-2015

Certificate of Coverage No. NCG02 ❑❑❑❑
CERTIFICATION
"I certify, under penalty of law, that this document and all attachments were prepared under my direction or
supervision in accordance with a system designed to assure that qualified personnel properly gather and
evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or
those persons directly responsible for gathering the information, the information submitted is, to the best of my
knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for
submitting false information, including the possibility of fines and imprisonment for knowing violations."
[Required by 40 CFR �� 2] 12
'Date
Mail Annual Summary Wastewater DMR to the NCDEQ Central Office:
Note the address is correct — Central Files is housed in DWR (not DEMLR)
N.C. Department of Environmental Quality (DEQ)
Division of Water Resources
Attn: DWR Central Files
1617 Mail Service Center
Raleigh, NC 27699-1617
Central Files Telephone [phone]
Questions? Contact DEMLR Stormwater Permitting Staff in the Central Office at:
[phone]
Permit Date 10/1/2015 — 9/30/2020
Last Revised 10-2-2015

ace Analytical e
wwr.Pacelabs.cum
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
December 24, 2019
Mr. Jim Zieglmeier
3M Corporation
4191 Highway 87 South
Moncure, NC 27559
RE: Project: OF-002-006
Pace Project No.: 92457000
Dear Mr. Zieglmeier:
Enclosed are the analytical results for sample(s) received by the laboratory on December 11, 2019.
The results relate only to the samples included in this report. Results reported herein conform to the
most current, applicable TNI/NELAC standards and the laboratory's Quality Assurance Manual,
where applicable, unless otherwise noted in the body of the report.
If you have any questions concerning this report, please feel free to contact me.
Sincerely,
Angela Baioni
[e-mail]
[phone]
Project Manager
Enclosures
cc: Mr. Stanley Carter, 3M Corporation
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 1 of 16

YaceAnalytical
w .pacelxhr
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
CERTIFICATIONS
Project: OF-002-006
Pace Project No.: 92457000
Pace Analytical Services Charlotte
9800 Kincey Ave. Ste 100, Huntersville, NC 28078
South Carolina Certification #: 99006001
Louisiana/NELAP Certification # LA170028
Florida/NELAP Certification #: E87627
North Carolina Drinking Water Certification #: 37706
Kentucky UST Certification #: 84
North Carolina Field Services Certification #: 5342
VirginiaNELAP Certification #: 460221
North Carolina Wastewater Certification #: 12
Pace Analytical Services Eden
205 East Meadow Road Suite A, Eden, NC 27288
North Carolina Wastewater Certification #: 633
North Carolina Drinking Water Certification #: 37738
VirginiaNELAP Certification #: 460025
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pats Analytical Services, LLC. Page 2 of 16

mAnalytical e
w .peceieb.com
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Hunlersville, NC 28078
[phone]
SAMPLE ANALYTE COUNT
Project:
Pace Project No.:
OF-002.006
92457000
Analytes
Lab ID
Sample ID
Method
Analysts
Reported
Laboratory
92457000001
OF-002
SM
213OB-2011
NMH
i
PASI-E
SM
254OD-2011
AMI
1
PASI-E
SM
2540E-2011
NMH
1
PASI-E
92457000002
OF-003
SM
213OB-2011
NMH
1
PASI-E
SM
2540D-2011
AMI
1
PASI-E
SM
2540E-2011
NMH
1
PASI-E
92457000003
OF-004
SM
213OB-2011
NMH
1
PASI-E
SM
254OD-2011
AMI
1
PASI-E
SM
2540E-2011
NMH
1
PASI-E
92457000004
OF-006
SM
213OB-2011
NMH
1
PASI-E
SM
254OD-2011
AMI
1
PASI-E
SM
254OF-2011
NMH
1
PASI-E
92457000005
OF-006
SM
21308-2011
NMH
1
PASI-E
SM
254OD-2011
AMI
1
PASI-E
SM
2540E-2011
NMH
1
PASI-E
EPA 1664B
HH
1
PASI-C
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC. Page 3 of 16

I
aceAnalytical e
WW.pacelebs.ceal
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
ANALYTICAL RESULTS
Project: OF-002-006
Pace Project No.: 92457000
Sample: OF-002
Lab ID: 92457000001 Collected:
12/10/19 15:15
Received: 12/11/19 11:04 Matrix: Water
Parameters
Results Units Report Limit
OF
Prepared Analyzed CAS No. Qual
2130E Turbidity EDN
Analytical Method: SM 213OB-2011
Turbidity
50.5 NTU
0.50
1
12/1211913:47
2540D Total Suspended Solids
Analytical Method: SM 254OD-2011
Total Suspended Solids
14.9 mg/L
2.5
1
12/12/19 13:30
264OF Total Settleable Solids
Analytical Method: SM 254OF-2011
Total Settleable Solids
NO mUUhr
0.10
1
12/12/19 10:25
Sample: OF-003
Lab ID: 92457000002 Collected:
12/10119 15:43
Received: 12/11/19 11:04 Matrix: Water
Parameters
Results Units Report Limit OF
Prepared Analyzed CAS No. Qual
2130E Turbidity EDN
Analytical Method: SM 213OB-2011
Turbidity
2.8 NTU
0.50 1
12/12/1913:49
2540D Total Suspended Solids
Analytical Method: SM 254OD-2011
Total Suspended Solids
ND mg/L
2.5 1
12/12/19 13:30
254OF Total Settleable Solids
Analytical Method: SM 2540E-2011
Total Settleable Solids
NO mUUhr
0.10 1
12/12/19 10:25
Sample: OF-004
Lab ID: 92457000003 Collected:
12/10/19 15:55
Received: 12/11/19 11:04 Matrix: Water
Parameters
Results Units Report Limit OF
Prepared Analyzed CAS No. Qual
2130B Turbidity EDN
Analytical Method: SM 213OB-2011
Turbidity
7.5 NTU
0.50 1
12/12/1913:50
2640D Total Suspended Solids
Analytical Method: SM 254OD-2011
Total Suspended Solids
10.4 mg/L
2.5 1
12/12/19 13:31
264OF Total Settleable Solids
Analytical Method: SM 254OF-2011
Total Settleable Solids
NO mUL/hr
0.10 1
12/12/19 10:25
Sample: OF-006 Lab ID: 92457000004 Collected: 12/10/1915:28 Received: 12/it/19 11:04 Matrix: Water
Parameters Results Units Report Limit OF Prepared Analyzed CAS No. Qual
2130E Turbidity EDN Analytical Method: SM 213OB-2011
Turbidity 7.4 NTU 0.50 1 12112/1913:48
Data: 12/24/2019 03:41 PM
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 4 of 16

aceAnalytical e
orm.pa"Istri.com
Pace Analytical Services, LLC
9800 leincey Ave. Suite 100
Huntersville, NC 28078
[phone]
ANALYTICAL RESULTS
Project: OF-002-006
Pace Project No.: 92457000
Sample: OF-005
Lab ID: 92457000004 Collected:
12110/19 15:28
Received:
12/11/19 11:04 Matrix: Water
Parameters
Results Units Report Limit
OF
Prepared
Analyzed CAS No. Qua]
2640D Total Suspended Solids
Analytical Method: SM 25400-2011
Total Suspended Solids
6.6 mg/L
2.6
1
12/12/19 13:31
254OF Total Settleable Solids
Analytical Method: SM 2540E-2011
Total Settleable Solids
NO mL/L/hr
0.10
1
12/12/19 10:25
Sample: OF-006
Lab ID: 92467000005 Collected:
12/10/19 16:07
Received:
12/11/19 11:04 Matrix: Water
Parameters
Results Units Report Limit
OF
Prepared
Analyzed CAS No. Qual
2130B Turbidity EDN
Analytical Method: SM 213OB-2011
Turbidity
7.4 NTU
0.50
1
1211211913:51
2640D Total Suspended Solids
Analytical Method: SM 254OD-2011
Total Suspended Solids
2.7 mg/L
2.5
1
12/12/19 13:32
254OF Total Settleable Solids
Analytical Method: SM 2540E-2011
Total Settleable Solids
NO mL/L/hr
0.10
1
12/12/19 10:25
1664 SGT-HEM, TPH
Analytical Method: EPA 1664B
Total Petroleum Hydrocarbons
NO mg/L
5.0
1
12/24/19 07:26
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 12/24/2019 03:41 PM without the written consent of Pace Analytical Services, LLC. Page 6 of 16

aceAnalytical
isins0aalabsrnm
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
QUALITY CONTROL DATA
Project: OF-002-006
Pace Project No.: 92457000
QC Batch: 514489 Analysis Method: SM 213OB-2011
QC Batch Method: SM 213OB-2011 Analysis Description: 2130B Turbidity EDN
Associated Lab Samples: 92457000001, 92457000002, 92457000003, 92457000004, 92457000005
METHOD BLANK: 2757551 Matrix: Water
Associated Lab Samples: 92457000001, 92457000002, 92457000003, 92457000004, 92457000005
Blank Reporting
Parameter Units Result Limit Analyzed Qualifiers
Turbidity NTU NO 0.50 12/1211913:46
LABORATORY CONTROL SAMPLE: 2757552
Spike LCS LCS % Rec
Parameter Units Conc. Result %Rec Limits Qualifiers
Turbidity NTU 20 20.2 101 90-110
SAMPLE DUPLICATE: 2757553
92457000001 Cup
Parameter Units Result Result RPD Qualifiers
Turbidity NTU 50.5 51.1 1
Results presentee on this page are In the units indicated by the "Units" column except where an alternate unit Is presented to the right of the result
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 12/24/2019 03:41 PM without the written consent of Pace Analytical Services, LLC.
Page 6 of 16

aceAnalytical
wwwins"labs.caa
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
QUALITY CONTROL DATA
Project: OF-002-006
Pace Project No.: 92457000
QC Batch: 514487 Analysis Method: SM 254OD-2011
QC Batch Method: SM 2540D-2011 Analysis Description: 2540D Total Suspended Solids
Associated Lab Samples: 92457000001, 92457000002, 92457000003, 92457000004, 92457000005
METHOD BLANK: 2757534 Matrix: Water
Associated Lab Samples: 92457000001, 92457000002, 92457000003, 92457000004, 92457000005
Blank Reporting
Parameter Units Result Limit Analyzed Qualifiers
Total Suspended Solids mg/L ND 2.5 12/12/19 13:29
LABORATORY CONTROL SAMPLE: 2757535
Spike LCS LCS %Rec
Parameter Units Conc. Result % Rec Limits Qualifiers
Total Suspended Solids mg/L 250 264 106 90-110
ALE DUPLICATE: 2757536
92457148003 Dup
Parameter Units Result Result RPD Qualifiers
Suspended Solids mg/L 15.8 15.0 5
SAMPLE DUPLICATE: 2757537
92456984001 Dup
Parameter Units Result Result RPD Qualifiers
Total Suspended Solids ni 193 171 12
Results presented on this page are In the units Indicated by the"units" column except where an alternate unit is presented to the debt of the result.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 12/24/2019 03:41 PM without the written consent of Pace Analytical Services, I.I.C.
Page 7 of 16

aceAnalytical e
grw.paula6asmg
I
QUALITY CONTROL DATA
Project: OF-002-006
Pace Project No.: 92457000
QC Batch: 514442 Analysis Method: SM 254OF-2011
OC Batch Method: SM 254OF-2011 Analysis Description: 254OF Total Settable Solids
Associated Lab Samples: 92457000001, 92457000002, 92457000003, 92457000004, 92457000005
METHOD BLANK: 2757219 Matrix: Water
Associated Lab Samples: 92457000001, 92457000002, 92457000003, 92457000004, 92457000005
Blank Reporting
Parameter Units Result Limit Analyzed Qualifiers
Total Settleable Solids mUUhr NO 0.10 12/12/19 10:25
SAMPLE DUPLICATE: 2757220
Parameter
Settleable Solids
92457005001 Oup
Units Result Result
mL/Uhr ND NO
RPD Qualifiers
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Hunlersville, NC 28078
[phone]
Results presented on this page ere In the units indicated by the "Units' column except where an allemete unit Is presented to the right of the result.
Date: 12/24/2019 03:41 PM
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 8 of 16

aceAnalytical o
rwlf.pacdabsam
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Hunlersville, NC 28078
[phone]
QUALITY CONTROL DATA
Project: OF-002-006
Pace Project No.: 92457000
QC Batch: 516529 Analysis Method: EPA 1664B
QC Batch Method: EPA 1664E Analysis Description: 1664 SGT-HEM, TPH
Associated Lab Samples: 92457000005
METHOD BLANK: 2767443 Matrix: Water
Associated Lab Samples: 92457000005
Blank Reporting
Parameter Units Result Limit Analyzed Qualifiers
Petroleum Hydrocarbons mg/L NO 5.0 12/24/19 07:09
LABORATORY CONTROL SAMPLE:
2767444
Spike LCS
LCS
% Rec
Parameter
Units
Conc. Result
% Rec
Limits
Qualifiers
Total Petroleum Hydrocarbons
mg/L
20 20.9
104
64-132
MATRIX SPIKE SAMPLE:
2767445
92456863001 Spike
MS
MS
%Rec
Parameter
Units
Result Conc.
Result
% Rec
Limits Qualifiers
Total Petroleum Hydrocarbons
mg/L
ND 20
5.4
17 64-132 M1
Results presentee on this page am In the units Indicated by the'Units" column except where an alternate unit Is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 12/24/2019 03:41 PM without the written consent of Pace Analytical Services, LLC.
Page 9 of 16

aceAnalytical e
rw.paalebs.cma
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
QUALIFIERS
Project: OF-002-006
Pace Project No.: 92457000
DEFINITIONS
DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot.
ND - Not Detected at or above adjusted reporting limit.
TNTC - Too Numerous To Count
J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit.
MDL -Adjusted Method Detection Limit.
PQL- Practical Quantitation Limit.
RL - Reporting Limit - The lowest concentration value that meets project requirements for quantitative data with known precision and
bias for a specific analyte in a specific matrix.
S - Surrogate
1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte is
a combined concentration.
Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values.
LCS(D) - Laboratory Control Sample (Duplicate)
MS(D) - Matrix Spike (Duplicate)
DUP - Sample Duplicate
RPD - Relative Percent Difference
NC - Not Calculable.
SG - Silica Gel - Clean -Up .
U - Indicates the compound was analyzed for, but not detected.
Acid preservation may not be appropriate for 2 Chloroethylvinyl ether.
A separate vial preserved to a pH of 4-5 is recommended in SW846 Chapter 4 for the analysis of Acrolein and Acrylonitrile by EPA
Method 8260.
N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for
each analyte is a combined concentration.
Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes.
TNI - The NELAC Institute.
LABORATORIES
PASI-C PaceAnalytical Services - Charlotte
PASI-E Pace Analytical Services - Eden
ANALYTE QUALIFIERS
M1 Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 12/24/2019 03:41 PM without the written consent of Pace Analytical Services, LLC. Page 10 of 16

aceAnalj6dal
w .panlebsxmo
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Hunlersville, NC 28078
[phone]
QUALITY CONTROL DATA CROSS REFERENCE TABLE
Project:
Pace Project No.:
OF-002-006
92457000
Analytical
Lab ID
Sample ID
QC
Batch Method
QC Batch Analytical Method Batch
92457000001
OF-002
SM
213OB-2011
514489
92457000002
OF-003
SM
213OB-2011
514489
92457000003
OF-004
SM
213OB-2011
514489
92457000004
OF-005
SM
21308-2011
514489
92457000005
OF-006
SM
213OB-2011
514489
92457000001
OF-002
SM
254OD-2011
514487
92457000002
OF-003
SM
2540D-2011
514487
92457000003
OF-004
SM
254OD-2011
514487
92457000004
OF-006
SM
2540D-2011
514487
92457000006
OF-006
SM
2540D-2011
514487
92457000001
OF-002
SM
2540E-2011
514442
92457000002
OF-003
SM
2540E-2011
514442
92457000003
OF-004
SM
254OF-2011
514442
92467000004
OF-005
SM
2540E-2011
514442
92457000005
OF-006
SM
2540E-2011
514442
92457000005
OF-006
EPA 1664E
516529
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 12/24/2019 03:41 PM without the written consent of Pace Analytical Services, I.I.C. Page 11 of 16

'yknnJ,y
' Document Name:
Document Revised: February 7, 2013
Simple Condition Upon Recel SNR
Page 1 of 2
Document No.:
Issuing Authority:
.
F-CAR-CS-033-Rev.06
Pace Carolinas Quality Office
Laboratory receiving samples:
Asheville Q Eden[] Greenwood ❑ Huntersvllle ❑ RalelgC Mechanicsville[]
" Client Name: PProjectN I WUN : UZ45
311 •
Courier. Fed Ex UPS USPS • ❑Client
❑ I II I III III II I II I I I II Ill
Commercial Fed
. []other— 92457000
CustodlfSeal Present? []Yes KNo • 5eali Intact? ❑Yes ' [ZNo
Packing Material: []Bubble Wrap []Bubble. Bags KLNone ❑ • Other
Thermometer:
❑IR Gun ID: Om
Type of Ice: Wet ❑Blue
Cooler Tamp (•C): 3. Lt 1J Correction Factor: Add/Subtract (•C) 0
Cooler Temp Corrected ('C): 3.9 '
Data/Initlals Parson Examining Contentr._7 h /2^%/-/,
Biological Tissue Frozen?
❑Nora ❑Yes []No SN/A
Temp should be above freezing to 6•C
❑Samples cut oftemp criteria Samples on Iro, tooling process
has besun
USDA Regulated Solt (& N/A, water sample)
Did samples originate In a quarantine zone within the United States: CA, NY, or SC (check maps)? Did samples originate from a foreign source Ilntrm e',tlonally,
I"IYes rlNn Indudlne Hawail and Puerto Rice)? C-IYes ONO
Comments Dlscre an :
Chain of Custody Present?
HYes
ONo
N/A
1.
Samples Arrivedwhhln Hold Time?
Zes
QNa
ONIA
2.
Short Hold Time Ana Is 42 hr.)?
JgYft
ONo
ONIA
3.
Rush Turn Around Time Requested?
tl
No
N/A
4.
Sufnctent Volume?
Mas
ONO
ONIA
S. '
Correct Containers Used?
-Pace Containers Used?
Yes
tl
"No
❑Ne
❑N/A
N/A
6.
Containers Intact?
QYW
ONo
❑N/A
7.
Dissolved analysis: Samples Field Filtered?
es
Qto
N A
e.
Sample Label$ Match COC?
-Includes Date/Time/ID/Anal is Matnccl-/%-'
§JYcs
ONO
❑N/A '
9. ,
Heads ace In VOA Vials >S-6mm)7
Oyes
No
MYLA
10.
Trip Blank Present?
Trip Blank Custody Seals Present?
Dyes
OY0
❑No
QNQ
JOIN/A
VdNIA '
11.
COMMENTS/SAMPLE DISCREPANCY
Lot ID of split containers:
CLIENT NOTIFIrATION/RESOLUTION
Person contacted:
Project Manager SCURF Review:
Project Manager SRF Review:
Vol
i�11 i
Date/llme:
Field Data Required? ❑Yes ONO
Data: 1 G 1 L ��T1 'I
Date: G G J{
Page 12 of 16

Document Name:
Document Revised: February 7, 2018
6�e,f
Sam le Condition Upon Recel SCUR
Page 1 of 2
•Document No.:
IssuingAuthodty:
i.• g� sl'
FCAR-0-03341tov,O6
Pace Carolinas QualRy, Office
"Check mark top half of box If pH and/or dechlorination Is
verified and within the acceptance range for preservation
samples. - — -
Exceptlons: VOA, Conform, TOC, 00 and Grease, DRO/8015 (water) DOC, Llxg
"Bottom half of box is to list number of bottle
..-..
IDate! 12/26/19
PN: RNB Due
CLIENT: 92-3N CORP
■N
ON
Emmons
NINE
►V■
on
pH Adjustment Log for Preserved Samples
sample ID
Type of Preservative
PH u'Pon receipt
Date Preservation adjusted
Tlme preservation
adjusted
Amount of Preservative
added
Lot N
Note: Whenever there is a discrepancy affecting North Carolina compliance samples, a coPY of this form will be sent to the North Camllna DEHNR Centfl adun Ofnce (Le.
Out of hold, Incorrect preservative, out of temp, Incorrect mntalnen.
Page 13 of 16

DocumentName
ocumen a se , AUJO
_
Sample Condition Upon U
Page 1 of 2
• Document No.:
Issuing Authorhy:
j .. CBA/13IyfIC81
F-CAR-0-033=Rev.06
Pace Carolinas Quality Office_
*Check mark top half of box If pH and/or dechlorination Is
verified and within the acceptance range for preservation
samples. — — — — — — — — —
Exceptions: VDA, Coliform, TOC, Oil and Grease, DR018015 (water) DOC, LLHg
"Bottom half of box Is to list number of bottle
WU#F : UL45 r UUU
PM: AMB Due Date: 12/26/19
CLIENT: 82-3M CORP
pH Adjustment Log for Preserved Samples
Sample 10
Type of Preservative,
pH upon receipt
Date preservation adjusted
Time preservation
adjusted
Amount of l reservative
added
Lot P
Note: Whenever there is a discrepancy affecting North Carolina compliance samples, a copy of this form will be sent to the North Carolina DEHNR Cartif radon Office (i.e.
Out of hold, Incorrect preservative, out of temp, incorrect containers.
Page 14 of 16

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