NCG030613_Tier_20240528

C4W�TERSEDGE ENVIRONMENTAL, LLC
34 CHESTER ROAD• RALEIGH, NC 27608• PHONE [phone]
May 28, 2024
Mr. Joe Edwards, EHS Officer
Matcor Metal Fabrication
835 Salem Road
Welcome, North Carolina 27374
Reference: Stormwater Discharge Outfall Qualitative Monitoring Report
Stormwater Discharge Outfall Monitoring Reports and Tier 1 Response
General Stormwater Permit NCG030000
Certificate of Coverage NCG030613
Matcor Metal Fabrication
Welcome, North Carolina
Waters Edge Job No R11-47
Dear Mr. Edwards:
Waters Edge Environmental,LLC(Waters Edge) is pleased to provide two copies of the Q1 2024
January-March 2024 forms for the quarterly site inspections and monitoring at the Matcor Metal
Fabrication facility located in Welcome, North Carolina (see Figures 1 and 2). It is now our
understanding that Matcor will be under the new General Stormwater Permit NCG030000,
Certificate of Coveragt which expires on June 30,2026 and we are in the process of filing a Notice
of Intent and paying the application fees to the Division of Energy,Mineral, and Land Resources
(the Division). We have completed the Discharge Outfall Qualitative Monitoring Report which has
been electronically submitted to DEMLR. Waters Edge also performed the stormwater sampling
and have filled out the Stormwater Discharge Outfall Monitoring Report(both report included in
Appendix A).Laboratory analytical results are documented in Appendix B. Based on these results,
we have exceedances for the following:
• Outfall 001
1. Exceedance for copper which was detected at 0.0201 mg/L versus a benchmark at
0.01 mg/L.
2. Exceedance for zinc which was detected at 0.975 mg/L versus a benchmark at 0.126
mg/L.
Based on the permit conditions,you should conduct a Tier 1 inspection of the facility. Any action
items which will be reviewed and potential deficiencies addressed. The Tier 1 response should be
recorded in the Stormwater Pollution Prevention Plan.
Again, as detailed in earlier reports, due to the lowered benchmark thresholds resulting in
benchmark exceedances, we previously sampled an upgradient surface water stream on the site
(upgradient Lake Drive) as well as two samples collected from the roof drains. Both roof drain
samples exceeded the zinc benchmark level at 0.126 mg/L(Roof-1 at 1.9 mg/L,and Roof-2 at 0.23

Stormwater Discharge Outfall Qualitative Monitoring Report
Stormwater Discharge Outfall Monitoring Reports and Tier 1 Response
General Stormwater Permit NCG030000
Matcor Metal Fabrication
Welcome, North Carolina
Page 2 of 2
May 28, 2024
mg/L). The background upgradient surface water samples were below the zinc benchmarks. Based
on these results, we would conclude the following:
• Metals are present in the upgradient surface water sample at the facility. Even though they
are below the zinc benchmarks, this metal is still present and can potentially be a
constituting factor to the outfall value detected.
• Copper and zinc contained in the building materials or downspouts are also contributing to
the copper and zinc in the stormwater which would have nothing to do with the industrial
activity at the site.
While we understand that multiple exceedances from the same Outfall require a Tier II response,
we believe that the other contributing factors to the exceedances are mitigating factors;therefore,
we will continue with our normal sampling frequency. While we will continue to attempt to
improve the stormwater quality at the facility,we believe that these type of metals exceedances are
largely due to non-industrial sources and can be found in a wide variety of non-industrial settings
(e.g., residential or any structures with metal components).
If there are any questions, please contact us at prahn(a-),watersedgeenv.com.
Sincerely,
WATERS EDGE ENVIRONMENTAL, LLC
Phillip L. Rahn
President
cc: DEMLR Stormwater- Winston-Salem Regional Office
24-041/PLR

FIGURES

-b
V
7-
IL
dl-
21
9p
47 a
t
rail
r
Jr
all
Q�i
11 A
Job No. Topo Quad Date Title Project Location Map
WATERS EDGE ENVIRONMENTAL,LLC R1 1-47 Welcome 9.4.2021
File Name Figure Scale Project Matcor SPPP
21-080.xls 1 unknown Welcome,North Carolina

\fir ; � ' • �' .�'� %� " _�.
a
MATCO�R METAL
FA = RICAT�I®N
r
a •
e
_R t
Stormwater Retention
,Alk Pond
Z �
� 50'
Job No. Image/Photo Date
�TERSEDGE ENVIRONMENTAL,LLC R11-47 Google 9.4.2021 Outfall Location Map
File Name Figure Scale Project MatcorSPPP
21-080,xls 2 as shown Welcome,North Carolina

APPENDIX A

NCDEQ Division of Energy, Mineral and Land Resources
Stormwater Discharge Monitoring Report(DMR) Form for NCG030000
Metal Fabrication
Click here for instructions
Complete,sign,scan and submit the DMR via the Stormwater NPDES Permit Data Monitoring Report(DMR) Upload form within
30 days of receiving sampling results. Mail the original,signed hard copy of the DMR to the appropriate DEMLR Regional Office.
Certificate of Coverage No. NCG03 0613 Person Collecting Samples: Thomas Haynes
Facility Name:Matcor Metal Fabrication Laboratory Name: Pace
Facility County: Davidson Laboratory Cert. No.:37706
Discharge during this period:171 Yes ®No (if no,skip to signature and date)
Has your facility implemented mandatory Tier response actions this sample period for any benchmark exceedances?IDYes ®No
If so,which Tier(I, II,or III)? 1
A copy of this DMR has been uploaded electronically via https://edocs.deg.nc.gov/Forms/SW-DMR Yes ONo
Date Uploaded: T
Analytical Monitoring Requirements for Outfalls with Industrial Activities—Benchmarks in(Red)
Parameter Parameter Outfall 001 Outfall Outfall Outfall Outfall
Code
N/A Receiving Stream Class Class C
N/A Date Sample Collected MM/DD/YYYY 2/24/11124
46529 24-Hour Rainfall in inches 0.22
C0530 TSS in mg/L(100 or 50*) 15.2
00400 pH in standard units(6.0-9.0 FW, 6.75
6.8-8.5 SW)
01119 Copper,total recoverable in mg/L
(0.010 FW,0.0058 SW) 0.0201
01051 Lead,total recoverable in mg/L <0.005
(0.075 FW,0.22 5W)
01094 Zinc,total recoverable in mg/L(0.126 0.975
FW,0.095 SW)
00340 Chemical Oxygen Demand(COD)in 41.6
mg/L(120)
00552 Non-Polar Oil&Grease in mg/L(15) G4.9
*Outfalls to Outstanding Resource Waters(ORW),High Quality Waters(HQW),Trout Waters(Tr)and Primary Nursery Areas(PNA)
have a benchmark TSS limit of 50 mg/L.All other water classifications have a benchmark of 100 mg/L
FW(Freshwater)SW(Saltwater)
Notes(optional): These are typical exceedances the facility has been experiencing for several years
"I certify by my signature below,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."
-2 y
Si ture of Permittee or Delegated Authorized Individual Date
M64 c�� � d}tit- ��� � e_a .� 3 3 6-
E it Address Phone Number

Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
For guidance on filling out this form,please visit:http://h2o.enr.state.nc.us/su/Forms Do cum ents.htm#miscforms
Permit No.: N C G 0 3 0 0 0 0 or Certificate of Coverage No.: N C G 0 3 0 6 1 3
Facility Name: Matcor Metal Fabrication
County: Davidson Phone No. 336.731.5742
Inspector: Thomas Haynes
Date of Inspection: 4.11.24
Time of Inspection: 10:05 AM
Total Event Precipitation(inches): 0.22
Was this a Representative Storm Event? (See information below) ® Yes ❑ No
Please check your permit to verify if Qualitative Monitoring must be performed during a representative storm event
(requirements vary).
.........................................................................................................................................................................................................................
A "Representative Storm Event' is a storm event that measures greater than 0.1 inches of rainfall and
that is preceded by at least 72 hours(3 days)in which no storm event measuring greater than 0.1 inches
has occurred. A single storm event may contain up to l0 consecutive hours of no precipitation:
By this signature, I certify that this report is accurateand complete to the best of my knowledge:
(Signature of Permittee or Designee)
1 Outfall Description:
Outfall No. 001 Structure (pipe, ditch, Outfall from Retention Pond
etc.)
Receiving Stream: Unnamed Tributary of Swearing Creek
Describe the industrial activities that occur within the outfall drainage area:
Metal Fabrication
2 Color:
Describe the color of the discharge using basic colors (red, brown, blue, etc.) and tint (light, medium, dark) as
descriptors:
Light brown
Page 1 of 2
SWU-242-112608

3 Odor:
Describe any distinct odors that the discharge may have (i.e., smells strongly of oil, weak chlorine odor, etc.):
No odor noted
4 Clarity:
Choose the number which best describes the clarity of the discharge, where 1 is clear and 5 is very cloudy:
1 O2 3 4 5
5 Floating Solids:
Choose the number which best describes the amount of floating solids in the stormwater discharge, where 1 is no
solids and 5 is the surface covered with floating solids:
1 3 4 5
6 Suspended Solids:
Choose the number which best describes the amount of suspended solids in the stormwater discharge, where 1 is no
solids and 5 is extremely muddy:
Ol 2 3 4 5
7 Is there any foam in the stormwater discharge? Yes No
8 Is there an oil sheen in the stormwater discharge? Yes No
9 Is there evidence of erosion or deposition at the outfall? Yes No
10 Other Obvious Indicators of Stormwater Pollution:
List and describe
None
Note: Low clarity, high solids, and/or the presence of foam, oil sheen, or erosion/deposition may be indicative of
pollutant exposure. These conditions warrant further investigation.
Page 2 of 2
SWU-242-112608

APPENDIX
B

Pace Analytical Services,LLC
205 East Meadow Road-Suite A
aceo Eden,NC 27288
[phone]
April 25, 2024
Mr. Phil Rahn
Waters Edge Environmental
1434 Chester Road
Raleigh, NC 27606
RE: Project: MATCOR
Pace Project No.: 92724711
Dear Mr. Rahn:
Enclosed are the analytical results for sample(s)received by the laboratory on April 11, 2024. The results relate only to the
samples included in this report. Results reported herein conform to the applicable TNI/NELAC Standards and the
laboratory's Quality Manual,where applicable, unless otherwise noted in the body of the report.
The test results provided in this final report were generated by each of the following laboratories within the Pace Network:
• Pace Analytical Services-Asheville
• Pace Analytical Services-Charlotte
• Pace Analytical Services- Eden
If you have any questions concerning this report, please feel free to contact me.
Sincerely,
Matthew Brainard
[e-mail]
704-977-0942
Project Manager
Enclosures
�pQ ACcr?FO
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced,except in full,
9eU without the written consent of Pace Analytical Services,LLC. Page 1 of 13

Pace Analytical Services,LLC
205 East Meadow Road-Suite A
(-� ace Eden,NC 27288
[phone]
CERTIFICATIONS
Project: MATCOR
Pace Project No.: 92724711
Pace Analytical Services Charlotte
South Carolina Laboratory ID:99006 South Carolina Certification#:99006001
9800 Kincey Ave.Ste 100,Huntersville,NC 28078 South Carolina Drinking Water Cert.#:99006003
North Carolina Drinking Water Certification#:37706 Florida/NELAP Certification#: E87627
North Carolina Field Services Certification#:5342 Kentucky UST Certification#:84
North Carolina Wastewater Certification#: 12 Louisiana DoH Drinking Water#:LA029
South Carolina Laboratory ID:99006 Virginia/VELAP Certification#:460221
Pace Analytical Services Asheville
2225 Riverside Drive,Asheville,NC 28804 South Carolina Laboratory ID:99030
Florida/NELAP Certification#: E87648 South Carolina Certification#:99030001
North Carolina Drinking Water Certification#:37712 Virginia/VELAP Certification#:460222
North Carolina Wastewater Certification#:40
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 13

Pace Analytical Services,LLC
205 East Meadow Road-Suite A
aceo Eden,NC 27288
[phone]
SAMPLE ANALYTE COUNT
Project: MATCOR
Pace Project No.: 92724711
Analytes
Lab ID Sample ID Method Analysts Reported Laboratory
92724711001 OUTFALL 001 SM 2540D-2015 DAW 1 PASI-E
EPA 1664E YY 1 PASI-C
EPA 200.7 Rev 4.4 1994 SBW 3 PASI-A
SM 5220D-2011 JP1 1 PASI-A
PASI-A=Pace Analytical Services-Asheville
PASI-C=Pace Analytical Services-Charlotte
PASI-E=Pace Analytical Services-Eden
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 13

Pace Analytical Services,LLC
205 East Meadow Road-Suite A
aceo Eden,NC 27288
[phone]
ANALYTICAL RESULTS
Project: MATCOR
Pace Project No.: 92724711
Sample: OUTFALL 001 Lab ID: 92724711001 Collected: 04/11/24 10:30 Received: 04/11/24 13:05 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
2540D Total Suspended Solids Analytical Method:SM 2540D-2015
Pace Analytical Services-Eden
Total Suspended Solids 15.2 mg/L 3.5 1 04/12/24 12:12
HEM,Oil and Grease Analytical Method: EPA 1664E
Pace Analytical Services-Charlotte
Oil and Grease ND mg/L 4.9 1 04/16/24 15:30
200.7 MET ICP Analytical Method: EPA 200.7 Rev 4.4 1994 Preparation Method: EPA 200.7 Rev 4.4 1994
Pace Analytical Services-Asheville
Copper 20.1 ug/L 5.0 1 04/17/2414:10 04/18/2414:20 7440-50-8
Lead ND ug/L 5.0 1 04/17/2414:10 04/18/2414:20 7439-92-1
Zinc 975 ug/L 10.0 1 04/17/2414:10 04/18/2414:20 7440-66-6
5220D COD Analytical Method:SM 5220D-2011 Preparation Method:SM 5220D-2011
Pace Analytical Services-Asheville
Chemical Oxygen Demand 41.6 mg/L 25.0 1 04/25/24 03:01 04/25/24 06:19
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced,except in full,
Date:04/25/2024 10:44 AM without the written consent of Pace Analytical Services,LLC. Page 4 of 13

Pace Analytical Services,LLC
205 East Meadow Road-Suite A
aceo Eden,NC 27288
[phone]
QUALITY CONTROL DATA
Project: MATCOR
Pace Project No.: 92724711
QC Batch: 846406 Analysis Method: SM 2540D-2015
QC Batch Method: SM 2540D-2015 Analysis Description: 2540D Total Suspended Solids
Laboratory: Pace Analytical Services-Eden
Associated Lab Samples: 92724711001
METHOD BLANK: 4370477 Matrix: Water
Associated Lab Samples: 92724711001
Blank Reporting
Parameter Units Result Limit Analyzed Qualifiers
Total Suspended Solids mg/L ND 2.5 04/12/24 12:08
LABORATORY CONTROL SAMPLE: 4370478
Spike LCS LCS %Rec
Parameter Units Conc. Result %Rec Limits Qualifiers
Total Suspended Solids mg/L 250 246 98 90-110
SAMPLE DUPLICATE: 4370479
92724698001 Dup
Parameter Units Result Result RPD Qualifiers
Total Suspended Solids mg/L 73.3 81.0 10
SAMPLE DUPLICATE: 4370480
92724779006 Dup
Parameter Units Result Result RPD Qualifiers
Total Suspended Solids mg/L 121 109 11
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:04/25/2024 10:44 AM without the written consent of Pace Analytical Services,LLC. Page 5 of 13

Pace Analytical Services,LLC
205 East Meadow Road-Suite A
aceo Eden,NC 27288
[phone]
QUALITY CONTROL DATA
Project: MATCOR
Pace Project No.: 92724711
QC Batch: 847135 Analysis Method: EPA 1664B
QC Batch Method: EPA 1664E Analysis Description: 1664 HEM,Oil and Grease
Laboratory: Pace Analytical Services-Charlotte
Associated Lab Samples: 92724711001
METHOD BLANK: 4373701 Matrix: Water
Associated Lab Samples: 92724711001
Blank Reporting
Parameter Units Result Limit Analyzed Qualifiers
Oil and Grease mg/L ND 5.0 04/16/24 15:30
LABORATORY CONTROL SAMPLE: 4373702
Spike LCS LCS %Rec
Parameter Units Conc. Result %Rec Limits Qualifiers
Oil and Grease mg/L 40 32.1 80 78-114
MATRIX SPIKE SAMPLE: 4373703
92724460006 Spike MS MS %Rec
Parameter Units Result Conc. Result %Rec Limits Qualifiers
Oil and Grease mg/L ND 39.2 33.8 80 78-114
SAMPLE DUPLICATE: 4373704
92724570002 Dup
Parameter Units Result Result RPD Qualifiers
Oil and Grease mg/L ND ND
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:04/25/2024 10:44 AM without the written consent of Pace Analytical Services,LLC. Page 6 of 13

Pace Analytical Services,LLC
205 East Meadow Road-Suite A
aceo Eden,NC 27288
[phone]
QUALITY CONTROL DATA
Project: MATCOR
Pace Project No.: 92724711
QC Batch: 847336 Analysis Method: EPA 200.7 Rev 4.4 1994
QC Batch Method: EPA 200.7 Rev 4.4 1994 Analysis Description: 200.7 MET
Laboratory: Pace Analytical Services-Asheville
Associated Lab Samples: 92724711001
METHOD BLANK: 4374943 Matrix: Water
Associated Lab Samples: 92724711001
Blank Reporting
Parameter Units Result Limit Analyzed Qualifiers
Copper ug/L ND 5.0 04/18/2413:40
Lead ug/L ND 5.0 04/18/2413:40
Zinc ug/L ND 10.0 04/18/2413:40
LABORATORY CONTROL SAMPLE: 4374944
Spike LCS LCS %Rec
Parameter Units Conc. Result %Rec Limits Qualifiers
Copper ug/L 500 512 102 85-115
Lead ug/L 500 509 102 85-115
Zinc ug/L 500 513 103 85-115
MATRIX SPIKE&MATRIX SPIKE DUPLICATE: 4374945 4374946
MS MSD
92724544002 Spike Spike MS MSD MS MSD %Rec
Parameter Units Result Conc. Conc. Result Result %Rec %Rec Limits RPD Qual
Copper ug/L ND 500 500 522 526 103 104 70-130 1
Lead ug/L ND 500 500 516 520 103 104 70-130 1
Zinc ug/L ND 500 500 525 529 104 105 70-130 1
MATRIX SPIKE&MATRIX SPIKE DUPLICATE: 4374947 4374948
MS MSD
92724168005 Spike Spike MS MSD MS MSD %Rec
Parameter Units Result Conc. Conc. Result Result %Rec %Rec Limits RPD Qual
Copper ug/L ND 500 500 552 529 110 105 70-130 4
Lead ug/L ND 500 500 542 519 108 104 70-130 4
Zinc ug/L 19.7 500 500 569 544 110 105 70-130 4
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:04/25/2024 10:44 AM without the written consent of Pace Analytical Services,LLC. Page 7 of 13

Pace Analytical Services,LLC
205 East Meadow Road-Suite A
aceo Eden,NC 27288
[phone]
QUALITY CONTROL DATA
Project: MATCOR
Pace Project No.: 92724711
QC Batch: 849288 Analysis Method: SM 5220D-2011
QC Batch Method: SM 5220D-2011 Analysis Description: 5220D COD
Laboratory: Pace Analytical Services-Asheville
Associated Lab Samples: 92724711001
METHOD BLANK: 4384122 Matrix: Water
Associated Lab Samples: 92724711001
Blank Reporting
Parameter Units Result Limit Analyzed Qualifiers
Chemical Oxygen Demand mg/L ND 25.0 04/25/24 06:13
LABORATORY CONTROL SAMPLE: 4384123
Spike LCS LCS %Rec
Parameter Units Conc. Result %Rec Limits Qualifiers
Chemical Oxygen Demand mg/L 750 713 95 90-110
MATRIX SPIKE&MATRIX SPIKE DUPLICATE: 4384124 4384125
MS MSD
92724432001 Spike Spike MS MSD MS MSD %Rec
Parameter Units Result Conc. Conc. Result Result %Rec %Rec Limits RPD Qual
Chemical Oxygen Demand mg/L ND 100 100 130 117 115 102 90-110 11 M1,R1
MATRIX SPIKE&MATRIX SPIKE DUPLICATE: 4384126 4384127
MS MSD
92724570001 Spike Spike MS MSD MS MSD %Rec
Parameter Units Result Conc. Conc. Result Result %Rec %Rec Limits RPD Qual
Chemical Oxygen Demand mg/L 749 100 100 833 833 84 84 90-110 0 M1
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:04/25/2024 10:44 AM without the written consent of Pace Analytical Services,LLC. Page 8 of 13

Pace Analytical Services,LLC
205 East Meadow Road-Suite A
aceo Eden,NC 27288
[phone]
QUALIFIERS
Project: MATCOR
Pace Project No.: 92724711
DEFINITIONS
DF-Dilution Factor,if reported,represents the factor applied to the reported data due to dilution of the sample aliquot.
ND-Not Detected at or above adjusted reporting limit.
TNTC-Too Numerous To Count
J-Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit.
MDL-Adjusted Method Detection Limit.
PQL-Practical Quantitation Limit.
RL-Reporting Limit-The lowest concentration value that meets project requirements for quantitative data with known precision and
bias for a specific analyte in a specific matrix.
S-Surrogate
1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270.The result for each analyte is
a combined concentration.
Consistent with EPA guidelines,unrounded data are displayed and have been used to calculate%recovery and RPD values.
LCS(D)-Laboratory Control Sample(Duplicate)
MS(D)-Matrix Spike(Duplicate)
DUP-Sample Duplicate
RPD-Relative Percent Difference
NC-Not Calculable.
SG-Silica Gel-Clean-Up
U-Indicates the compound was analyzed for,but not detected.
Acid preservation may not be appropriate for 2 Chloroethylvinyl ether.
A separate vial preserved to a pH of 4-5 is recommended in SW846 Chapter 4 for the analysis of Acrolein and Acrylonitrile by EPA
Method 8260.
N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for
each analyte is a combined concentration.
Reported results are not rounded until the final step prior to reporting.Therefore,calculated parameters that are typically reported as
"Total"may vary slightly from the sum of the reported component parameters.
Pace Analytical is TNI accredited.Contact your Pace PM for the current list of accredited analytes.
TN -The NELAC Institute.
ANALYTE QUALIFIERS
M1 Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample(LCS)recovery.
R1 RPD value was outside control limits.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced,except in full,
Date:04/25/2024 10:44 AM without the written consent of Pace Analytical Services,LLC. Page 9 of 13

Pace Analytical Services,LLC
205 East Meadow Road-Suite A
aceo Eden,NC 27288
[phone]
QUALITY CONTROL DATA CROSS REFERENCE TABLE
Project: MATCOR
Pace Project No.: 92724711
Analytical
Lab ID Sample ID QC Batch Method QC Batch Analytical Method Batch
92724711001 OUTFALL 001 SM 2540D-2015 846406
92724711001 OUTFALL 001 EPA 1664B 847135
92724711001 OUTFALL 001 EPA 200.7 Rev 4.4 1994 847336 EPA 200.7 Rev 4.4 1994 847727
92724711001 OUTFALL 001 SM 5220D-2011 849288 SM 5220D-2011 849661
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced,except in full,
Date:04/25/2024 10:44 AM without the written consent of Pace Analytical Services,LLC. Page 10 of 13

Laboratory receiving samples:
Asheville❑ Mega Greenwcad❑ Huntersville❑ Raleigh[] Mechanksville❑ Atfanta❑ Ke'rnersville[
Client Name:
WQ�# : 92724711
} Project�: J
Courier: []Fed Ex ❑UPS asps ❑Client 1111111111111111111111
❑Commercial ❑P ❑ace other
92724711
Custody Seal Present? ❑Yes N'O' Seals Intact? ❑Yes ❑No QKX
Date/laWale Person Examining Contents:
Packing Material: ❑Hubble Wrap ❑Bubble Sags j3i4one ❑ other Biological Tissue Frozen? ) 1
Thermometer ❑Yes ❑No QWI
�f IR Gun ID: Type of Ice: ,. 1 et ❑Slue ❑None
} Correction Factor:
Cooler Temp: !' Add/Subtract(°C) Temp should be above freezing to 6"C
( ❑5amples out of temp criteria.Samples on ice,cooling proce
lidCooler Tom....,r�.,�,o-�Trti. ['( s be
gan
USDA Regulated Soil(❑N/A,water sample)
Did samples originate in a gyarantine zone within the United States.CA,NY,or 5C Did samples originate from a foreign source(internationally,
(check maps)?❑Yes 13No including Hawaii and Puerto Rico)?❑Yes11 1 o
Comments/Discrepancy:
Chain of Custody Present? QYes ❑No ❑NIA 1.
Samples Arrived within Hold Time? �s ❑Na ❑NIA 1.
Short Hold Time Analysis(<72 hr.)? es ON. []N/A 3.
Rush Turn Around Time Requested? ❑Yes ❑No -tJN/A 4.
Suffi dent volume? -f5'Y- []No ❑N/A 5.
Correct Containers Used? Zryes ON- ❑N/A 6.
-Pace Containers Used? Y ❑No ❑N/A
Containers Intact? Yes ❑No ❑N/A 7.
Dissolved analysis:Samples Field Filtered? ❑Yes ❑No ZNIA S.
Sample Labels Match COO es ❑Ma ❑N/A 9.
-includes Date/TimeAD/Anaiysis Matrix:
i
Headspace in VOA Vials(>5-6mm)? ❑Yes []No l2N/A ID.
Trip Blank Present? ❑Yes ONO AF/A 11.
Trip Blank Custody Seals Present? Oyes ZING .N/A
COMMENT515AMPLE DISCREPANCY Field Data Rzgvired? ❑Yew❑No
Lot ID of split containers:
CLIENT NOTiHCAT!CN/RE5CLUT1CPJ
Person contacted: Date/Time:
Pra;ece Manager SCUgq Review: Date:
Project,103nager SRr Rev,'Sw: Date:
Qualtrax 0 696114 Page 1 of 2
Page 11 of 13

I Effective Date: 11/29/2023
*Check mark top half of box if pH and/or dechlorination is verified and Projec W4# : 9272471 1
within the acceptance range for preservation samples. PM: MWB Due Date: 04/25/24
Exceptions.VOA,Coliform,TOC,Oil and Grease,aRO/9015(water)DOC,LLHg
**Bottom half of box is to list number of bottles CLIENT: 95-Waters Ed
***Check all unpreserved Nitrates for chlorine
0
_ ^"- u u ¢
Q
v U u z
z Z Q 4 rn in
'G v � ? ry Z MZ ro ¢ Z iv m m z iv N C
V ci m -q V v n a _ m V �' Z Z 7 ai v Q >
CL
ai ai a) °} -7m CO2 (Ud U� v y —' iV
V
c S z N Z U O N 2 _� v� Q CL ¢ r� m 2 c q
0 O. C J — 2! D O C
" .a a r, Y =
a a a a E E Q E Q E 4 p O ro `m m qi ro E ;~
E E E `a E E E E _� am E ¢ E Q a ¢ cn C
LM o o �n o � = o v o E E E E E E E E E E E E
N N ?i O O d T ul O O O
+"� N N N N �--I N •--f N V V C 0O fH H N M On V
7 of ry m W J 2 M 2 F= > >
E
an. a b l7 C7 1m.7 l�7 Cm7 °' Q1 m m a� (Y7 vY1 N m o rn
Y 5 y N enQ `l C]
1
2
3
4 NN
5
6
7
8
9
10
11
12
PH Adjustment Log for Preserved Samples
Sample ID Type of Preservative pH upon receipt Date preservation adjusted Time preservation Amount of Preservative Lot tt
adjusted added
Note: Whenever there is a discrepancy affecting North Carolina compliance samples,a copy ofthis form wiil be sent to the North Carolina DENR Certification Office(i.e.
Out of hold,incorrect preservative,out of temp,incorrect containers.
Qualtrax JD-.69614 Page 2 of 2
Page 12 of 13

0 0
\F N C C a
Cb
31
E r S S m W
T.
C)r N N J] m fA P m O
p
'n 3 o io
'O r1
n ti v ❑
m s -
O n ri — d o-n -
Wm
d K C)
a � P
O
2 J o m Q
3 3 3 3 `
w
a 3
\� nEM
\ o m 3 1 0
a m o \
fG
� o
c
n � �
Q n
Metals JS
3
n3 TSS Qrlrr: 7�
48 1. = f\ QD
3 a 3 3 3
5 Q3 W
o L�rl c� °' p 9 ❑ C C
^ n LO m m
c, m O O
ei
n b r r
a n
r o x x
vl p o a
ar
in o 0
in a n
z C = m m
Z
z lab Use onlyN
-
7 r 3 _ --� v i_
N F+ v D W �s r r
n F+ n 0 n -� w m
xcr
_ ^ cn W r4 z T 7a w r2
V ° 3 n n= m n
'D c _ C)
N 3 -Pa o3
3 3 O a $
3
presmatm n--r—n-:e idenblred far --
samplr. a -
Page 13 of 13