NCG030613_MONITORING INFO_20181125

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STORMWATER DIVISION CODING SHEET
NCG PERMITS
PERMIT N0, w C,%
DOC TYPE. ❑ HISTORICAL FILE
❑ MONITORING REPORTS
DOC DATE ❑
YYYYMMDD

l
1i
I�
HATERS EDGE ENVIRONNIENTAL, LLC
...� _ 1434 CHESTER ROAD • RALEIGH, INC 27608 • PHONE [phone]
November20, 2019
Mr. Joe Edwards, EHS Officer
Matcor Metal fabrication
835 Salem Road v�
Welcome, North Carolina 27374
Reference: Stormwater Discharge Outfall Qualitative Monitoring Report,
Stormwater Discharge Outfall Monitoring Reports �a
Matcor Metal fabrication- Year 2- Period 2- July-December-20 FICEI !./Co
Welcome, North Carolina NOV a 5id
Waters Edge Job No RI 1-47 `
Dear Mr. Edwards:
Own�NT'kh ,
1.7
Waters Edge Environmental, LLC (Waters Edge) is pleased to provide two copies of the Year 2-
Period 2- July -December 2019 forms for the semi-annual site inspections at the Matcor Metal
Fabrication facility located in Welcome, North Carolina (see Figures 1 and 2). The past permit
has expired in October 2017; however, it is our understanding that Matcor does not have to
petition to renew since they are under a General Permit NCG0300000 (Part Ill -Section B- Subpart
91) and want merely to continue under the existing permit. We have completed the Discharge
Outfall Qualitative Monitoring Report. Waters Edge also performed the Stormwater sampling and
have tilled 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:
• Outfall001
I . Exceedance for copper which was detected at 0.0154 mg/L versus a benchmark at
0.007 mg/L.
2. Exceedance for zinc which was detected at 0.449 n1g/L versus a benchmark at
0.067 mg/L.
• Outfall002
I. Exceedance for copper which was detected at 0.015 mg/L versus a benchmark at
0.007 mg/L.
2. Exceedance for zinc which was detected at 0.255 mg/L versus a benchmark at
0.067 mg/L.
Based on the permit conditions, you should conduct a Tier I inspection of the facility. Any action
items which will be reviewed and potential deficiencies addressed. The Tier I 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

Stormwater Discharge Monitoring Report and Tier I Response
Year 2- Period 2- .kdy-December 2019
Matcor Metal Fabrication
Welcome, NC
Page 2 of 2
November 20, 2019
samples exceeded the zinc benchmark level at 0.067 mg/L (Roof-1 at 1.9 mg/L, and Roof-2 at
0.23 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 values detected.
• Copper and zinc contained in the building materials or downspouts are also contributing to
the 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 11 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
"1� /C�
Phillip L. Ralm
President
cc: NCDEQ Stormwater (two copies)
19-084/PLR

FIGURES

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Job,Vo. Topo Ouad Date Title Project Location Map
WATERS EDGE ENVIRONMENTAL. LLC RI1-47 Welcome I.192012
File Name Figure • Scale Project Malcor SPPP
R11-17.>Is 1 unknown Welcome. North Carolina

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Job No forage/Photo Date Tide
i RII-17 Davidson Co. GIS 10272011 Site&Surrounding Properties Map
WATERS EDGE ENVIRONMENTAL, LLC
File Nmne Figlve Scale Project Matmr SPPP
RI 147.ds 2 unknown Welcome, North Carolina

Semi-annual Stormwater Discharge Monitoring Report
for North Carolina Division of Water Quality General Permit No. NCG030000
Date submitted _11.20.19,
CERTIFICATE OF COVERAGE No. N00030613
FACILITY NAME Matcor Metal Fabrication
COUNTY Davidson
PERSON COLLECTING SAMPLES T. Haynes
LABORATORY —Pace— Lab Cert. k _37706_ Comments on sample
collection or analysis: None
Part A: Stormwater Benchmarks and Monitoring Results
SAMPLE COLLECTION YEAR _2019_
SAMPLE PERIOD ❑ Jan -June ® July -Dec
or ❑ Monthly' (month)
DISCHARGING TO CLASS ®ORW ❑HQW ❑Trout ❑PNA
❑Zero -flow ❑Water Supply ❑SA
[-]Other
PLEASE REMEMBER TO SIGN ON PAGES 2 AND/OR 3 -)
I-1 No dischorae this period?'
Non -Polar O&G/
Outfall No.
Date Sample
24-hour rainfall
Total Suspended Solids
pH.
Copper
Lead
Zinc
Total Petroleum
Total Toxic
Organics
Collected'
amount,
Standard units
Hydrocarbons
(mo/dd/yr)
Inches'
Benchmarks =__>
-
-
100 mg/L or 50 mg/L4
6.0 - 9.0
0.007 mg/L
0.03 mg/L
0.067 mg/L
15 mg/L
1 mg/L
001
10/31/19
1.62
9.1
6.8
0.0154
ND
0.449
NA
NA
002
10/31/19
1.62
17.7
7.5
0.015
ND
0.255
NA
NA
a al.e o�...o ..tfell
' Monthly sampling (instead of semi-annual) must begin with the second consecutive oencnmarx exceeadnce lur me bduic a1 —, I.....- .,.........
z For sampling periods with no discharge at any single outfall, you must still submit this discharge monitoring report with a checkmark here.
3The total precipitation must be recorded using data from an on -site rain gauge. Unattended sites may be eligible for a waiver of the rain gauge requirement.
' See General Permit, Table 3 identifying the especially sensitive receiving water classifications where the more protective benchmark applies.
' Total Toxic Organics sampling is applicable only for those facilities which perform metal finishing operations, manufacture semiconductors, manufacture
electronic crystals, or manufacture cathode ray tubes. For purposes of this permit the definition of Total Toxic Organics is that definition contained in the EPA
Effluent Guidelines forthe facility subject to the requirement to sample (for metal finishing use the definition as found in 40 CFR 433.11; for semiconductor
manufacture use the definition as found in 40 CFR 469.12; for electronic crystal manufacture use the definition as found in 40 CFR 469.22; and for cathode ray
tube manufacture use the definition found in 40 CFR 469.31).
Permit Date: il/1/2012-10/31/2017 SWU-245, last revised 10/25/2012
Page 1 of 3

Facilities that incorporate a solvent management plan into the Stormwater Pollution Prevention Plan may so certify, and the requirement for TTO monitoring
may be waived. The solvent management plan shall include a list of the total toxic organic compounds used and the other elements listed in the General
Permit. For those facilities electing to employ the TTO monitoring waiver, the discharger shall sign the following certification statement:
"Based upon my inquiry of the person or persons directly responsible for managing compliance with the permit monitoring requirement for total toxic organics
(TTO), I certify that to the best of my knowledge and belief, no dumping of concentrated toxic organics into the stormwater or areas which are exposed to rainfall or
stormwater runoff has occurred since filing the last discharge monitoring report. I further certify that this facility is implementing the all the provisions of the
solvent management plan included in the Stormwater Pollution Prevention Plan."
—7eo<p►. Eaw 4 PJJS
Name (Print name)
El'is/�%.fl„�7-en.bce 5"+Aervitr��
Title (Print title))
9�j�-lC/ //-/9-lcl.
nature (Date)
Note: Results must be reported in numerical format. Do not report Below Detection Limit, BDL, <PQL, Non -detect, ND, or other similar non -numerical
format. When results are below the applicable limits, they must be reported in the format "<XX ma/L", where XX is the numerical value of the detection
limit, reporting limit, etc. in mg/L.
Note: if you report a sample value in excess of the benchmark, you must implement Tier 1, Tier 2, or Tier 3 responses. See General Permit text.
Part B: Vehicle Maintenance Area Monitoring Results: only for facilities averaging > 55 gal of new oil per month.
No discharge this period?'
Outfall No.
Date Sample
Collected'
(mo/dd/yr)
24-hour rainfall
amount,
Inches;
Non -polar O&G/TPH by
EPA 1664(SGT-HEM)
Total Suspended Solids
pH
Benchmarks =__>
-
-
15 mg/L
100 mg/L or 50 mg/L*
6.0 — 9.0 SU
Footnotes from Part A also apply to this Part B
* See General Permit text, Table 5, identifying the especially sensitive receiving water classifications where the more protective benchmark applies.
Permit Date: 11/1/2012-10/31/2017 SWU-245, last revised 10/25/2012
Page 2 of 3

Note: if you report a sample value in excess of the benchmark, you must implement Tier 1, Tier 2, or Tier 3 responses. See General Permit text.
FOR PART A AND PART B MONITORING RESULTS:
• A BENCHMARK EXCEEDANCE TRIGGERS TIER 1 REQUIREMENTS. SEE PERMIT PART II SECTION B.
2 EXCEEDANCES IN A ROW FOR THE SAME PARAMETER AT THE SAME OUTFALL TRIGGER TIER 2 REQUIREMENTS. SEE PERMIT PART II SECTION B.
• TIER 3: HAS YOUR FACILITY HAD 4 OR MORE BENCHMARK EXCEEDENCES FOR THE SAME PARAMETER AT ANYONE OUTFALL? YES ❑ NO ❑
IF YES, HAVE YOU CONTACTED THE DWQ REGIONAL OFFICE? YES ❑ NO ❑
REGIONAL OFFICE CONTACT NAME:
Mad an original and one copy of this DMR including all "No Discharge" reports within 30 days of receipt of the lab results (or at end of monitoring period
in the case of "No Discharge' reports) to:
Division of Water Quality
Attn: DWQ Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
YOU MUST SIGN THIS CERTIFICATION FOR ANY INFORMATION REPORTED:
"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."
of Permittee)
Permit Date: 11/1/2012-10/31/2017
(Date)
SWU-245, last revised 10/25/2012
Page 3 of 3

Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
For guidance on filling out this form, please visit: hltp"//h2o ear stite nc us/su/Forms Documents hnn#miscforms
Permit No.: IN I C I G i 0 13 10 10 10 10 I or Certificate of Coverage No.: I N I C I G 10 13 10 16 11 13 I
Facility Name: Matcor Metal Fabrication
County: Davidson Phone No. 336.731.5742
Inspector: Thomas Haynes
Date of Inspection:
10.31.19
Time of Inspection: 10:45 AM
Total Event Precipitation (inches)
1.62
Was this a Representative Storm Event? (See information below) ® Yes ❑ No
Please checkyour permit to verify if Qualitative Monitoring must be performed during a representative storm event
(requirements vary).
................
A "Rc1. prese1. ntaItive Sto1. r11 m 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 sinele storm event may contain up to 10 consecutive hours of no precipitation.
By this signature, I certify that this report is accurate and complete to the best of my knowledge:
12,
(Signature of Permittee or Designee)
Outfall Description:
Outfall No. 001/002 Structure (pipe, ditch, etc.)
Receiving Stream: Unnamed Tributary of Swearing Creek
Describe the industrial activities that occur within the outfall drainage area:
Fabrication
2 Color:
Describe the color of the discharge using basic colors (red, brown, blue, etc.) and tint (light, medium, dark) as
descriptors:
Liaht brown
Page 1 of 2
S W U-242-1 12608

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 I is clear and 5 is very cloudy:
2O 3 4 5
5 Floating Solids:
Choose the number which best describes the amount of floating solids in the stormwater discharge, where I is no
solids and 5 is the surface covered with floating solids:
1 O 3 4 5
6 Suspended Solids:
Choose the number which best describes the amount of suspended solids in the stormwater discharge, where I is no
solids and 5 is extremely muddy:
1 2O 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
9 Is there evidence of erosion or deposition at the outfall? Yes
111 Other Obvious Indicators of Stormwater Pollution:
List and describe
Nnna
M
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
S W U-242-112608

s
aceAnalytical
www.parelabs.caln
November 12, 2019
Mr. Phil Rahn
Waters Edge Environmental
1434 Chester Road
Raleigh, NC 27606
RE: Project: Matcor
Pace Project No.: 92451841
Pace Analytical Services, LLC
205 East Meadow Road - Suite A
Eden, NC 27288
[phone]
Dear Mr. Rahn:
Enclosed are the analytical results for sample(s) received by the laboratory on October 31, 2019.
The results relate only to the samples included in this report. Results reported herein conform to the
most current, applicable TNUNELAC 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,
Clayton McCrickard
[e-mail]
[phone]
Project Manager
Enclosures
�s�Q PcCRF���
TN1
'9gORPtO�`S�
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 11

aceAnalyticala
w w,.pacelabs.com
Project: Matcor
Pace Project No.: 92451841
Asheville Certification IDS
2225 Riverside Drive, Asheville, NC 28804
Florida/NELAP Certification #: E87648
Massachusetts Certification #: M-NC030
North Carolina Drinking Water Certification #: 37712
Eden Certification IDS
205 East Meadow Road Suite A, Eden, NC 27288
North Carolina Drinking Water Certification #: 37738
11
CERTIFICATIONS
North Carolina Wastewater Certification #: 40
South Carolina Certification #: 99030001
Yrgir iaNELAP Certification #: 460222
North Carolina Wastewater Certification #: 633
UrginiaNELAP Certification #: 460025
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Pace Analytical Services, LLC
205 East Meadow Road - Suite
Eden, NC 27288
[phone]
Page 2 of 11

lace Analytical a
wrim.peeelabs.cem
Project: Matcor
Pace Project No.: 92451841
Lab ID Sample ID
92451841001 Outfal 1001
92451841002 Outfall 002
SAMPLE SUMMARY
Matrix
Date Collected
Date Received
Water
10/31/19 10:30
10/31/19 15:28
Water
10/31/19 11:00
10/31/19 15:28
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Pace Analytical Services, LLC
205 East Meadow Road - Suite A
Eden, INC 27288
[phone]
Page 3 of 11

1551ceAnalyfical'
WwmPacelabs.com
SAMPLE ANALYTE COUNT
Pace Analytical Services, LLC
2135 East Meadow Road - Suite A
Eden, NC 27288
[phone]
Project:
Pace Project No.:
Matcor
92451841
Analytes
Lab ID
Sample ID
Method
Analysts
Reported
Laboratory
92451841001
Outfall 001
SM 2540D-2011
SOB
1
PASI-E
EPA 9040C
MWF
1
PASI-E
EPA 200.7 Rev 4.4 1994
SH1
3
PASI-A
92451841002
Outfall 002
SM 254OD-2011
SOB
1
PASI-E
EPA9040C
MWF
1
PASI-E
i
EPA 200.7 Rev 4.4 1994
SH1
3
PASI-A
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 11

_�aceAnalytical e
wwwgacelabs,cum
ANALYTICAL RESULTS
Project: Matcor
l: Pace Project No.: 92451841
Pace Analytical Services, LLC
205 East Meade. Road - Suite A
Eden, NC 27288
[phone]
I sample: outtall 001
Lab ID: 92451841001 Collected:
10/31/19 10:30
Received: 10/31/19 15:28 Matrix: Water
Report
Parameters
I
Results Units Limit
MDL DF
Prepared Analyzed CAS No. Qual
2540D Total Suspended Solids
Analytical Method: SM 254OD-2011
Total Suspended Solids
9.1 mg/L 2.5
2.5 1
11/01/1914:05
,i 9040 pH
Analytical Method: EPA 9040C
;I pH at 25 Degrees C
6.8 Std. Units 0.10
0.10 1
10/31/19 16:54 H3
200.7 MET ICP
I I
Analytical Method: EPA 200.7 Rev 4.4
1994 Preparation
Method: EPA 200.7 Rev 4.4 1994
Copper
15.4 ug/L 5.0
2.1 1
11/07/1923:15 11/10/19 04:55 7440-50-8
i' Lead
ND ug/L 5.0
1.6 1
11/07/1923:15 11/10/1904:55 7439-92-1
Zinc
449 ug/L 10.0
3.9 1
11/0711923:15 11/1011904:55 7440-66-6
Sample: Outfall 002
Lab ID: 92451841002 Collected:
10/31/1911:00
Received: 10/31/19 15:28 Matrix: Water
Report
Parameters
Results Units Limit
MDL DF
Prepared Analyzed CAS No. Qual
2640D Total Suspended Solids
Analytical Method: SM 254OD-2011
i; Total Suspended Solids
17.7 mg/L 2.5
2.5 1
11/01/19 14:05
9040 pH
Analytical Method: EPA 9040C
pH at 25 Degrees C
7.5 Std. Units 0.10
0.10 1
10/31/19 17:05 H3
200.7 MET ICP
Analytical Method: EPA 200.7 Rev 4.4
1994 Preparation
Method: EPA 200.7 Rev 4.4 1994
'.Copper
15.0 ug/L- 5.0
2.1 1
11/07/19 23:15 11/10/1904:59 7440-50-8
Lead
ND ug/L 5.0
1.6 1
11/07/1923:15 11/10/1904:59 7439-92-1
Zinc
255 ug/L 10.0
3.9 1
11/07/1923:15 11/10/1904:59 7440-66-6
Date: 11/12/2019 02:25 PM
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, I.I.C.
Page 5 of 11

Pace Analytical Services, LLC
aceAnalytieal a
w Rd Suite A
205 East MeadoEden
NC 27268
www.pacelaas.com
[phone]
QUALITY CONTROL DATA
I
I Project: Matcor
�. Pace Project No.: 92451841
QC Batch: 506938
Analysis Method: SM 2540D-2011
QC Batch Method: SM 254OD-2011
Analysis Description: 2540D Total Suspended Solids
Associated Lab Samples: 92451841001, 92451841002
II METHOD BLANK: 2722039
I
Matrix: Water
1, Associated Lab Samples: 92451841001, 92451841002
I�
Blank Reporting
Parameter
Units
Result Limit MDL
Analyzed
Qualifiers
Total Suspended Solids
mg/L
ND 2.5 2.5
11/01/19 14:00
LABORATORY CONTROL SAMPLE:
ill
2722040
Spike LCS LCS
%Rec
Parameter
Units
Conc. Result % Rec
Limits Qualifiers
Total Suspended Solids
mg/L
250 250 100
90-110
I�
SAMPLE DUPLICATE: 2722041
92451523001 Dup
Max
Parameter
Units
Result Result RPD
RPD
Qualifiers
Total Suspended Solids
I I
I
mg/L
ND ND
25
I' SAMPLE DUPLICATE: 2722753
"
92451788001 Dup
Max
Parameter
Units
Result Result RPD
RPD
Qualifiers
Total Suspended Solids
mg/L
ND ND
25
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
I! This report shall not be reproduced, except in full,
Date: 11/12/2019 02:25 PM without the written consent of Pace Analytical Services, LLC. Page 6 of 11

aceAnalytical e
www.pacelabs.cam
I'
I I
Project: Matcor
Pace Project No.: 92451841
QUALITY CONTROL DATA
I QC Batch: 507094
Analysis
Method:
EPA9040C
I I QC Batch Method: EPA 9040C
Analysis
Description:
9040 pH EDEN
Associated Lab Samples: 92451841001, 92451841002
Pace Analytical Services, LLC
205 East Meadow Road - Suite A
Eden, NC 27288
[phone]
SAMPLE DUPLICATE: 2722737
92451599001 Cup Max
Parameter Units Result Result RPD RPD Qualifiers
I pH at 25 Degrees C Std. Units 7.9 7.9 0 9 H3
I.
i,
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.
Date: 11/12/2019 02:25 PM
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the wntlen consent of Pace Analytical Services, LLC,
Page 7 of 11

I
t
aPace
Analytical
I
�laceAnalytical
205 EastMe dow RoadLSueto A
www.pacelabs.com
Eden, NC 27288
[phone]
I
QUALITY CONTROL DATA
Project: Matcor
Pace Project No.: 92451841
QC Batch: 508337
Analysis Method: EPA 200.7 Rev 4.4 1994
OC Batch Method: EPA 200.7 Rev 4.41994
Analysis Description: 200.7 MET
Associated Lab Samples: 92451841001,
92451841002
METHOD BLANK: 2728867
Matrix: Water
Associated Lab Samples: 92451841001, 92451841002
Blank Reporting
Parameter
Units Result Limit MDL
Analyzed Qualifiers
Copper
ug/L NO 5.0
2.1 11/11/19 11:55
Lead
ug/L NO 5.0
1.6 11/11/19 11:55
. Zinc
it
ug/L NO 10.0
3.9 11/11/19 11:55
LABORATORY CONTROL SAMPLE:
2728868
Spike LCS LCS
% Bee
Parameter
Units Cone. Result e/ Rec
Limits Qualifiers
II Copper
ug/L 500 485 97
85-115
Lead
ug/L 500 463 93
85-115
Zinc
it
l I
ug/L 500 448 90
85-115
MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
2728869 2728870
MS MSD
92451808005 Spike Spike MS MSD
MS MSD %Rec
Max
Parameter Units
Result Cone. Conc. Result Result e/ Rae % Rae Limits RPD
RPD Qual
Copper ug/L
6.0 500 500 509 508
101 100 70-130 0
20
Lead ug/L
NO 500 500 485 490
97 98 70-130 1
20
Zinc ug/L
28.6 500 500 508 516
96 97 70-130 2
20
MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
2728871 2728872
u
MS MSD
92452456003 Spike Spike MS MSD
MS MSD %Rec
Max
Parameter Units
Result Cone. Conc. Result Result %Rec %Rec Limits RPD
RPD Qua[
II Copper ug/L
94.2 500 500 615 610
104 103 70-130 1
20
Lead ug/L
5.0 500 500 502 504
99 100 70-130 0
20
Zinc ug/L
it
112 500 500 607 604
99 98 70-130 1
20
I�
i
Results presented on this rehears In the units indicated by the "units" eolumn 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: 11/12/2019 02:25 PM
without the wntten consent of Pace Analytical Services, -I-C.
Page 8 of 11

2acleAnalyficals
www.pacelabs.com
QUALIFIERS
Project: Matcor
Pace Project No.: 92451841
DEFINITIONS
Pace Analytical Services, LLC
205 East Meadow Road - Suite A
Eden, NC 27289
[phone]
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, unfounded 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-A Pace Analytical Services - Asheville
PASI-E Pace Analytical Services - Eden
� ANALYTE QUALIFIERS
H3 Sample was received or analysis requested beyond the recognized method holding time
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 11/12/2019 02:25 PM without the written consent of Pace Analytical Services, L-C.
I I
Page 9 of 11

1 �
lace Analytical e
www.pacalabs.com
QUALITY CONTROL DATA CROSS REFERENCE TABLE
Pace Analytical Services, LLC
205 East Meadow Road - Suite A
Eden, NC 27288
[phone]
Project:
Matcor
Pace Project No.:
92451841
Analytical
Lab ID
Sample ID
QC Batch Method
QC Batch
Analytical Method
Batch
92451841001
Outfall 001
SM 2540D-2011
506938
92451841002
Outfall 002
SM 2540D-2011
506938
92451841001
Outfall 001
EPA 9040C
507094
92451841002
Outfall 002
EPA 9040C
507094
924511141001
Outfall 001
EPA 200.7 Rev 4.4 1994
508337
EPA 200.7 Rev 4.4 1994
508370
92451841002
Outfall 002
EPA 200.7 Rev 4.4 1994
508337
EPA 200.7 Rev 4.4 1994
508370
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Dale: 11/12/2019 02:25 PM without the written consent of Pace Analytical Services, LLC.
Page 10 of 11

CHAIN -OF -CUSTODY Analytical Request Document
Chain -of -Custody is a LEGAL DOCUMENT - Complete all releven[ fields
Address: Jam/ / pv �,
Report To: i%! I/ �/- ��) Email To:
�W® V.92451841
' korder N.ai or.
92451841
ps
as
as
Contain
Lab Project Manager:�2yt
'•Presevat a Tlpes:(1) ni1rc acid,(2) sulfur., aud, (3) I,dai,hlonc and.(4)s.d,rm hydrous (5) irc avuae,
(6) methanol,(7) sodium blsuif ut,{e)sodium thiosulfate,(9)he.ane,(A)ascorbic acid.(A) ammoniumsulfate.
(Q ammoniwn hydroxide, (0) TSP, (U) Unpreserved. (0) Other
Analyses
Lab Profile/Line
'Lab 5 pl Receipt Che klis[-
Custody Seats Prt eni/Intai: x, Y '1
TTtT
quetociv Signatures dre ent ry9 W
co_1C to S.vgaatu e P e9eh� y"I NA
.•
3otitles I_tace ..,, .-Y IT RAC
=opy To: //.
Site Collection Info/Address:
_ustomer Project Name)Numbat
State: County/City: Time Zone Collected:
( ]PTI IMT[ ]CT [ T
r.nr_.
Phone:
Site/Facility ID 6:
Com nce Monitoring?
Email
I c<yes [ INo
Collected By (print)
Purchase Order p.
OW PWS ID M:
Code:
Quote il: ��T —,
DW Location
Cbllee�Y (signa r
Turnaround Date. Required:
Immetl rely Packed on Ice:
0
• I I No
S, pie DispoSal:
Rush:
Field Filtered (if applicable):
I �Dsppse as app5p,ate I I Return
( ]Same Day ] )Next Day
[ I Yes ( ) No
I I Archive
1120.y [ 1 3 Day I I4Day [ j 5 Day
Analysis:
(Hold:
(Expedite Charges Apply)
` Matrix Codes (Insert in Matrix box below): Drinking Water OW), Ground Water (GW), Wastewater (W W),
Product (P), Soil/Solid (SL), Oil (OE), Wipe (WP), Air (AR), Tissue (TS), Bioassay (B), Vapor (V), Other (FIT)
Camp/
Collec[ed(ar
Composite End
Res
pof
Customer Sample ID
Matrix'
Grab
Composite Start)
Cl
Ctns
Date I
Time
I Date I
Time
Customer Remarks/ Special Conditions/Possible Hazards: Type of ice Used: vye't Blue pry None SHORT HOLDS.PRESEtJT (<7Zhours)i X- N N(
Packing Material Usedh lab racking M: 3 32654
Samples Feceived via
Radchem sample(s) screened(1500apm). Y N N� FEDE% UPS Cl ten Courier , Pace
Relinquished by/Company: (Signature) Date/Time: ReceiJed by/Company (Signature) Date%Time: MTl
l%'/. ,% Table q:
� / v �•� r` .Il.-III r✓1 Acctnum:
Relinquished byfCo fiy:(Signature) Date 'me! eceived by/Company:(5igna[ure) Date"Tini Template:
/ Prelogin: nr
Relinquished by/Company: (Signature) Da[e/Ti mReceived by/Company: (Signature) Da[e,'Time: PhtV,+3�
— e: 46131
Eo_cect -Bottle. X OdrA
Su£Ei a me -S It rA
Sampl Recdreod an -cc . -d oa
VOA-.Bead'space acceptable. Y IT NA
Lana Res fated So 1 I we
Smaples in holding T ae -Y N
Rcs itival cbloranc Pruucnt Y R J
c1;5iv ps.
Samp'_ p3 AeecveSble Yta ern
.Sull Eidc, Present Y N F.A'
,Lead Acetate Strips: _
`LAA-USE ONLY:. '
Lab -Sample'> / Comments: .
Temp Blank Received- Y N ter
Therm ID/i��
Cooler i Temp Upon Receipf. C
Cooler i Thermtom Factor oC
Coale, 1 Corrected Temp: oc
Comments:
Trip Blank Received .Y N NA
HCL MCOH TSP Other
Non Coofcrmance(s): Page 1

,
^1%*� WATFRS EDGE ENVIRONMENTAL, LLC
Mrz"e 14
1434 CHESTER ROAD • RALEIGH, NC 27608 • PHONE [phone]
November 20, 2019
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
Matcor Metal Fabrication- Year 2- Period 2- July-December-2019
Welcome, North Carolina
Waters Edge Job No RI 1-47
I
Dear Mr. Edwards:
Waters Edge Environmental, LLC (Waters Edge) is pleased to provide two copies of the Year 2-
Period 2- July -December 2019 forms for the semi-annual site inspections at the Matcor Metal
Fabrication facility located in Welcome, North Carolina (see Figures I and 2). The past permit
has expired in October 2017; however, it is our understanding that Matcor does not have to
petition to renew since they are under a General Permit NCG0300000 (Part I II -Section B- Subpart
#1) and want merely to continue under the existing permit. We have completed the Discharge
Outfall Qualitative Monitoring Report. 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:
• Outfall001
I . Exceedance for copper which was detected at 0.0154 mg/L versus a benchmark at
0.007 ing/L.
2. Exceedance for zinc which was detected at 0.449 mg/L versus a benchmark at
0.067 mg/L.
• Outfall002
I. Exceedance for copper which was detected at 0.015 mg/L versus a benchmark at
0.007 mg/L.
2. Exceedance for zinc which was detected at 0.255 mg/L versus a benchmark at
0.067 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 I 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

Stormwater Discharge Monitoring Report and Tier / Response
Year 2- Period 2- July -December 2019
Malcor Metal Fabrication
Welcome, NC
Page 2 of 2
November 20, 2019
samples exceeded the zinc benchmark level at 0.067 mg/L (Roof -I at 1.9 mg/L, and Roof-2 at
0.23 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 values detected.
Copper and zinc contained in the building materials or downspouts are also contributing to
the 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 watersedeeenv.com.
Sincerely,
WATERS EDGE ENVIRONMENTAL, LLC
Phillip L. Rahn
President
cc: NCDEQ Stormwater (two copies)
19-084/PLR

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Job Ao. Topo Quad Dwe Title Project Location Map
�TERSEDGE ENVIRONNIMENTAL, LLC RI 1-47 Welcome 1 19 2012 1
IFile No,,,e Figu,, Scale Project Matcor SPPP
RI I I I Welcome. North Carolina

I Job No. /n ageiYnoro care r11e Site & Surrounding Properties Map
t RII-17 Davidson Co. GIS 10.27.2011
WATERS EDGE ENVIRON\4ENTAL, LLC
ram- File Name Figure Scale Project Malwr $PPP
RI 1-47 xis 2 unknown Welcome, North Carolina

APPENDIX A

Semi-annual Stormwater Discharge Monitoring Report
for North Carolina Division of Water Quality General Permit No. NCG030000
Date submitted 11.20.19
CERTIFICATE OF COVERAGE NO. N00030613
FACILITY NAME _Matcor Metal Fabrication
COUNTY Davidson
PERSON COLLECTING SAMPLES T. Haynes
LABORATORY —Pace— Lab Cert. # _37706_ Comments on sample
collection or analysis: None
Part A: Stormwater Benchmarks and Monitoring Results
SAMPLE COLLECTION YEAR _2019_
SAMPLE PERIOD ❑ Jan -June ® July -Dec
or ❑ Monthly' (month)
DISCHARGING TO CLASS ®ORW ❑HQW ❑Trout ❑PNA
❑Zero -flow ❑Water Supply ❑SA
❑Other
PLEASE REMEMBER TO SIGN ON PAGES 2 AND/OR 3 4
❑ No discharge this periodj2
Outfall No.
Date Sample
Collected'
imo/dd/yri
24-hour rainfall
amount,
Inches'
Total Suspended Solids
pH
Standard units
Copper
Lead
Zinc
on -Polar leum
Total Petro
Hydrocarbons
Total Toxic
Organics s
Benchmarks =__>
-
-
100 mg/L or 50 mg/L4
6.0 — 9.0
0.007 mg/L
0.03 mg/L
0.067 mg/L
15 mg/L
1 mg/L
.001
10/31/19
1.62
9.1
6.8
0.0154
ND
0.449
NA
NA
002
10/31/19
1.62
17.7
7.S
0.015
NO
0.255
NA
NA
' Monthly sampling (instead of semi-annual) must begin with the second consecutive benchmark exceedance for the same parameter at the same ouudn.
Z For sampling periods with no discharge at any single outfall, you must still submit this discharge monitoring report with a checkmark here.
3The total precipitation must be recorded using data from an on -site rain gauge. Unattended sites may be eligible for a waiver of the rain gauge requirement.
See General Permit, Table 3 identifying the especially sensitive receiving water classifications where the more protective benchmark applies.
' Total Toxic Organics sampling is applicable only for those facilities which perform metal finishing operations, manufacture semiconductors, manufacture
electronic crystals, or manufacture cathode ray tubes. For purposes of this permit the definition of Total Toxic Organics is that definition contained in the EPA
Effluent Guidelines for the facility subject to the requirement to sample (for metal finishing use the definition as found in 40 CFR 433.11; for semiconductor
manufacture use the definition as found in 40 CFR 469.12; for electronic crystal manufacture use the definition as found in 40 CFR 469.22; and for cathode ray
tube manufacture use the definition found in 40 CFR 469.31).
Permit Date: 11/1/2012-10/31/2017 SWU-245, last revised 10/25/2012
Page 1 of 3

Facilities that incorporate a solvent management plan into the Stormwater Pollution Prevention Plan may so certify, and the requirement for TTO monitoring
may be waived. The solvent management plan shall include a list of the total toxic organic compounds used and the other elements listed in the General
Permit. For those facilities electing to employ the TTO monitoring waiver, the discharger shall sign the following certification statement:
"Based upon my inquiry of the person or persons directly responsible for managing compliance with the permit monitoring requirement for total toxic organics
(TTO), I certify that to the best of my knowledge and belief, no dumping of concentrated toxic organics into the stormwater or areas which are exposed to rainfall or
stormwater runoff has occurred since filing the last discharge monitoring report. I further certify that this facility is implementing the all the provisions of the
solvent management plan included in the Stormwater Pollution Prevention Plan."
�eac�o� E�w,af�S
Name (Print name)
Title (Print title) a
nature (Date)
Note: Results must be reported in numerical format. Do not report Below Detection Limit, BDL, <PQL, Non -detect, ND, or other similar non -numerical
format. When results are below the applicable limits, they must be reported in the format, "<XX mg/L", where XX is the numerical value of the detection
limit, reporting limit, etc. in mg/L.
Note: If you report a sample value in excess of the benchmark, you must implement Tier 1, Tier 2, or Tier 3 responses. See General Permit text.
Part B: Vehicle Maintenance Area Monitoring Results: only for facilities averaging > 55 gal of new oil per month.
n No discharge this period?2
Outfall No.
Date Sample
Collected'
(mo/dd/yr)
24-hour rainfall
amount,
Inches3
Non -polar O&G/TPH by
EPA 1664 (SGT-HEM)
Total Suspended Solids
pH
Benchmarks =__>
-
-
15 mg/L
100 mg/L or 50 mg/L'
6.0 - 9.0 SU
Footnotes from Part A also apply to this Part B
See General Permit text, Table 5, identifying the especially sensitive receiving water classifications where the more protective benchmark applies.
Permit Date: 11/1/2012-10/31/2017 SWU-245, last revised 10/25/2012
Page 2 of 3

Note: if you report a sample value in excess of the benchmark, you must implement Tier 1, Tier 2, or Tier 3 responses. See General Permit text.
FOR PART A AND PART B MONITORING RESULTS:
• A BENCHMARK EXCEEDANCE TRIGGERS TIER 1 REQUIREMENTS. SEE PERMIT PART II SECTION B.
• 2 EXCEEDANCES IN A ROW FOR THE SAME PARAMETER AT THE SAME OUTFALL TRIGGER TIER 2 REQUIREMENTS. SEE PERMIT PART II SECTION B.
• TIER 3: HAS YOUR FACILITY HAD 4 OR MORE BENCHMARK EXCEEDENCES FOR THE SAME PARAMETER AT ANYONE OUTFALL? YES ❑ NO ❑
IF YES, HAVE YOU CONTACTED THE DWQ REGIONAL OFFICE? YES ❑ NO ❑
REGIONAL OFFICE CONTACT NAME:
Mail an original and one copy of this_DMR including all "No Discharge" reports within 30 days of receipt of the lab results for at end of monitoring period
in the case of "No Discharge" reports) to:
Division of Water Quality
Attn: DWQ Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
YOU MUST SIGN THIS CERTIFICATION FOR ANY INFORMATION REPORTED:
"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."
of Permittee)
(Date)
Permit Date: 11/1/2012-10/31/2017 SWU-245, last revised 10/25/2012
Page 3 of 3

Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
For guidance on filling out this form, please visit: littp'//li2o.eiir.state.tic.us/sti/ForiTis Documents.1u n#miscforms
Permit No.: I N I C I G 10 13 10 10 10 10 I or Certificate of Coverage No.: I N I C I G 10 13 10 16 11 13
Facility Name: Matcor Metal Fabrication
County: Davidson Phone No. 336.731.5742
Inspector: Thomas Haynes
Date of Inspection: 10.31.11
Time of Inspection: 10:45 AM
'total Event Precipitation (inches): 1.62
Was this a Representative Storm Event? (See information below) ® Yes ❑ No
Please check your permit to verify if Qualitative Monitoring in ust 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 10 consecutive hours of no precipitation.
Lay this signature, I certify that this report is accurate and complete to the best of my knowledge:
(Signature of Permittee or Designee)
I Outfall Description:
Outfall No. 001/002 Structure (pipe, ditch, etc.) Pipe
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:
Lioht brown
Page 1 of 2
S W U-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 I is clear and 5 is very cloudy:
1 (D 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 O 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:
1 O 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
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
S W U-242-1 12608

APPENDIX B

Ar
ace Analytical a
www.pacelabs.cori
November 12, 2019
j
Mr. Phil Rahn
Waters Edge Environmental
1434 Chester Road
Raleigh, NC 27606
RE: Project: Matcor
Pace Project No.: 92451841
Pace Analytical Services, LLC
205 East Meadow Road -Suite A
Eden, NC 27288
[phone]
Dear Mr. Rahn:
Enclosed are the analytical results for sample(s) received by the laboratory on October 31, 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,
1�47� W_C__r�z
Clayton McCrickard
[e-mail]
[phone]
Project Manager
Enclosures
�e PCCRpa
� TNK
\9B�RptpPi
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 11

aceAnalytical e
www.Dacelabmom
Project: Matcor
I, Pace Project No.: 92451841
Pace Analytical Services, LLC
205 East Meadow Road - Suite
Eden, NC 27288
[phone]
Asheville Certification IDs
2225 Riverside Drive, Asheville, NC 28804
FloridalNELAP Certification #: E87648
Massachusetts Certification #: M-NC030
North Carolina Drinking Water Certification #: 37712
CERTIFICATIONS
North Carolina Wastewater Certification #: 40
South Carolina Certification #: 99030001
vrginiaA/ELAP Certification #: 460222
�IEden Certification IDs
205 East Meadow Road Suite A, Eden, NC 27288 North Carolina Wastewater Certification #: 633
North Carolina Drinking Water Certification #: 37738 UrginiaNELAP Certification #: 460025
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, I.I.C. Page 2 of 11

�PaceAnalXical e
www.pacelaba.com
SAMPLE SUMMARY
Project: Matcor
Pace Project No.: 92451841
Lab ID
Sample ID
Matrix
Date Collected
Date Received
. 92451841001
92451841002
Outfall 001
Outfall 002
Water
Water
10/31/1910:30
10/31/1911:00
10/31/1915:28
10/31/1915:28
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Pace Analytical Services, LLC
205 East Meadow Road - Suite A
Eden, NC 27288
[phone]
Page 3 of 11

i
laceAnalyfical"
www.pacelabs.cam
SAMPLE ANALYTE COUNT
Project: Matcor
Pace Project No.: 92451841
Pace Analytical Services, LLC
205 East Meadow Road - Suite A
Eden, NC 27288
[phone]
r Lab ID
Sample ID
Method
Analysts
Analytes
Reported
Laboratory
92451841001
Outfall 001
SM 254OD-2011
SOB
1
PASI-E
EPA 9040C
MWF
1
PASI-E
EPA 200.7 Rev 4.4 1994
SH1
3
PASI-A
92451841002
Outfall 002
SM 2540D-2011
SOB
1
PASI-E
EPA 9040C
MWF
1
PASI-E
EPA 200.7 Rev 4.4 1994
SH1
3
PASI-A
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC. Page 4 of 11

II'
Pace Analytical Services, LLC
s
aceAnalytical
205 East Meadow Road - Suite A
Eden, NC 27288
wwminicelabs.cort
[phone]
ANALYTICAL
RESULTS
l
Project: Matcor
Pace Project No.: 92451841
Sample: Outfall 001
Lab ID: 92451841001 Collected:
10131/1910:30
Received: 10131/1915:28 Matrix: Water
Report
Parameters
Results Units Limit
MDL DF
Prepared Analyzed CAS No. Qual
2540D Total Suspended Solids
Analytical Method: SM 254OD-2011
Total Suspended Solids
9.1 mg/L 2.5
2.5 1
11/01/19 14:05
9040 pH
Analytical Method: EPA 9040C
pH at 25 Degrees C
6.8 Std. Units 0.10
0.10 1
10/31/19 16:54 H3
1200.7 MET ICP
Analytical Method: EPA 200.7 Rev 4.4
1994 Preparation
Method: EPA 200.7 Rev 4.4 1994
Copper
15.4 ug/L 5.0
2.1 1
11/07/19 23:15 11/10/19 04:55 7440-50-8
Lead
ND ug/L 5.0
1.6 1
11/07/19 23:15 11/1011904:55 7439-92-1
Zinc
I'
449 ug/L 10.0
3.9 1
11/07/19 23:15 11/10/19 04:55 7440-66-6
Sample: Outfall002
Lab ID: 92451841002 Collected:
10/31/1911:00
Received: 10/31/1915:28 Matrix: Water
Report
Parameters
Results Units Limit
MDL DF
Prepared Analyzed CAS No. Qual
2540D Total Suspended Solids
Analytical Method: SM 2540D-2011
Total Suspended Solids
17.7 mg/L , 2.5
2.5 1
11/01/19 14:05
9040 pH
Analytical Method: EPA 9040C
pH at 25 Degrees C
7.5 Std. Units 0.10
0.10 1
10/31/19 17:05 H3
200.7 MET ICP
Analytical Method: EPA 200.7 Rev 4.4
1994 Preparation
Method: EPA 200.7 Rev 4.4 1994
,Copper
15.0 ug/L 5.0
2.1 1
11/0711923:15 11/10/19 04:59 7440-50-8
Lead
ND ug/L 5.0
1.6 1
11/07/19 23:15 11/10/19 04:59 7439-92-1
Zinc
255 ug/L 10.0
3.9 1
11/07/19 23:15 11/10/19 04:59 7440-66-6
REPORT OF LABORATORY ANALYSIS
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Pace Analytical Services, LLC
a
�aceAnalytical
205 East Meadow -Suite A
Eden,Roa
en, NC 27288
wune pacelabs.co n
[phone]
QUALITY CONTROL DATA
'Project: Malcor
,,Pace Project No.: 92451841
QC Batch: 506938
Analysis Method: SM 254OD-2011
QC Batch Method: SM 2540D-2011
Analysis Description: 2540D Total Suspended Solids
Associated Lab Samples: 92451841001, 92451841002
METHOD BLANK: 2722039
Matrix: Water
'Associated Lab Samples: 92451841001. 92451841002
Blank Reporting
Parameter
Units
Result Limit MDL
Analyzed
Qualifiers
Total Suspended Solids
mg/L
ND 2.5 2.5
11/01/19 14:00
LABORATORY CONTROL SAMPLE:
2722040
Spike LCS LCS
% Rec
Parameter
Units
Conc. Result %Rec
Limits Qualifiers
Total Suspended Solids
mg/L
250 250 100
90-110
'SAMPLE DUPLICATE: 2722041
92451523001 Dup
Max
Parameter
Units
Result Result RPD
RPD
Qualifiers
Total Suspended Solids
mg/L
NO NO
25
SAMPLE DUPLICATE: 2722753
92451788001 Dup
Max
Parameter
Units
Result Result RPD
RPD
Qualifiers
,Total Suspended Solids
mg/L
NO NO
25
Results presented on this page are lathe units Indicated by the "Units' column except where an alternate unit Is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
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Date: 11/12/2019 02:25 PM without the written consent of Pace Analytical Services, L-C. Page 6 of 11

t
aceAnalytical a
www.pacelabs.com
I
Project: Matcor
Pace Project No.: 92451841
QC Batch: 507094
'QC Batch Method: EPA 9040C
Associated Lab Samples: 92451841001, 92451841002
„SAMPLE DUPLICATE: 2722737
�Parameter Units
I pH at 25 Degrees C Ste. Units
QUALITY CONTROL DATA
Analysis Method: EPA 9040C
Analysis Description: 9040 pH EDEN
92451599001 Dup
Result Result RPD
7.9 7.9
0
Max
RPD
Pace Analytical Services, LLC
205 East Meadow Road -Suite A
Eden, NC 27288
[phone]
Qualifiers
9 H3
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.
Date: 11 /12/2019 02:25 PM
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.
Page 7 of 11

laceAnalyfical"
Pace Analytical Services, LLC
205 East Meadow Road
Eden, NCC 272 2728B
www.pacelabs.com
[phone]
QUALITY CONTROL DATA
Project: Matcor
Pace Project No.: 92451841
QC Batch: 508337
Analysis Method: EPA 200.7 Rev 4.4 1994
OC Batch Method: EPA 200.7 Rev 4.4
1994
Analysis Description: 200.7 MET
.'Associated Lab Samples: 92451841001. 92451841002
METHOD BLANK: 2728867
Matrix: Water
Associated Lab Samples: 92451841001, 92451841002
Blank Reporting
Parameter
Units
Result Limit MOIL
Analyzed Qualifiers
Copper
ug/L
ND 5.0
2A 11/11/1911:55
' Lead
ug/L
ND 5.0
1.6 11/11/19 11:55
Zinc
ug/L
NO 10.0
3.9 11/11/1911:55
LABORATORY CONTROL SAMPLE:
2728868
Spike LCS LCS
%Rec
Parameter
Units
Cone. Result % Rec
Limits Qualifiers
'Copper
ug/L
500 485 97
85-115
Lead
ug/L
500 463 93
85-115
Zinc
ug/L
500 448 90
85-115
MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
2728869 2728870
MS MSD
92451808005
Spike Spike MS MSD
MS MSD % Rec
Max
Parameter Units
Result
Cone. Cone. Result Result
%Rec e/ Rec Limits RPD
RPD Qual
Copper ug/L
6.0
500 500 509 508
101 100 70-130 0
20
Lead ug/L
NO
500 500 485 490
97 98 70-130 1
20
Zinc ug/L
28.6
500 500 508 516
96 97 70-130 2
20
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2728871 2728872
MS MOD
92452456003 Spike Spike MS MSD MS MSD e/ Rec Max
Parameter Units Result Cone, Cone. Result Result %Rec %Rec Limits RPD RPD Qua]
Copper ug/L 94.2 500 500 615 610 104 103 70-130 1 20
Lead ug/L 5.0 500 500 502 504 99 100 70-130 0 20
Zinc ug/L 112 500 500 607 604 99 98 70-130 1 20
Results presented on this page arc In the units indicated by the' Units" column except where an alternate on It Is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 11/12/2019 02:25 PM without the written consent of Pace Analytical Services, L-C. Page 8 of 11

laceAnalyficala
w 'Pacelabs.cam
QUALIFIERS
Project: Matcor
" Pace Project No.: 92451841
DEFINITIONS
Pace Analytical Services, LLC
205 East Meadow Road - Suite A
Eden, NC 27288
[phone]
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 Acrylonilrile 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-A Pace Analytical Services - Asheville
PASI-E Pace Analytical Services - Eden
ANALYTE QUALIFIERS
H3 Sample was received or analysis requested beyond the recognized method holding time.
REPORT OF LABORATORY ANALYSIS
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Date: 11/12/2019 02:25 PM without the written consent of Pace Analytical Services, LLC,
Page 9 of 11

aceAnalytical
www.pac ilabs.com
QUALITY CONTROL DATA CROSS REFERENCE TABLE
Project: Matcor
Pace Project No.: 92451841
Pace Analytical Services, LLC
205 East Meadow Road - Suite A
Eden, NC 27288
[phone]
Lab ID
Sample ID
QC Batch Method
QC Batch
Analytical Method
Analytical
Batch
92451841001
Outfall 001
SM 25400-2011
506938
92451841002
Outfall 002
SM 254OD-2011
506938
,92451841001
Outfall 001
EPA 9040C
507094
192451841002
Outfall 002
EPA9040C
507094
92451841001
Outfall 001
EPA 200.7 Rev 4.4 1994
508337
EPA 200.7 Rev 4.4 1994
508370
92451841002
Outfall 002
EPA 200.7 Rev 4.4 1994
508337
EPA 200.7 Rev 4.4 1994
508370
REPORT OF LABORATORY ANALYSIS
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Page 10 of 11

WO# • 9245d841 Number or
�korder
II � III III I I II I III'( III
92451842
JNLY a
F-CUSTODY Analytical Request Document
�� CHAIN-OF-CUSTODY
! -Face Analytical'
Chain -of -Custody is a LEGAL DOCUMENT - Complete all relevent fields
Company: )
Billing Information:
Address: -
Container Preservative T e
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lab Project ManaGer:
Rz�srs1+l
Report To: n `y�
Email To:
••preservative Types: (1)runic acid.(2)sulfuric acid,(3) hydrochloric acid. (4)s.drum hydroxide.(5) arc acclat,,
(61 meth ... 1.(7)sodium bisulfaw, (E) sodium thmsulfau,(91 hexane.(A) ascorbic acid, lB) ammoniumsulime,
(C) ammonium hydroxide,(0) TSP, (U) Unpr,,read.(0) Other
Copy To:
Site Collection Info/Address:
Analyses
JlLab Profile/Line:
Customer Project Name/N/umber. r�
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State: County/City: Time Zone Collected:
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Lab Sample Receipt checklist: '
Custody Scal: P[c.ent/Intact Y N.t
Custody Signatures PrescacY !.'
Collector Signature Precool �' tl NA
Bottle. Intact X[i NA
correct Bottles x u tit:
Sufficient Volume Y-n NA
Ramp L_s Received c YN NF
VOA - Beadspace Acceptable Y II Nr'
USDA Ne9ulaced 9o111 y V Rrc
Samples in Holding Time .: N NA
Residual chlorine Pres1nc y R )kC
Cl scups:
Sample px Acceptable C,� ,YN NA
pH Scrips: 7Je'L(
SUlficc P[Csent Y Il SAP
Lead Acetate scrips:
cAA c5e ONLY:
Lab Sample N { Comments:
Phone:
Email:
Site/Facility ID n:
COm ante MonitorinN?
I Yes [ I No
Collected By (print):
/lS , Ai Y�
Purchase Order fF
/A'
nU0[C p: �l%r—�/
DW PWS 10 n:
DW Location Cod¢:
Collected y (sgna ur
Turnaround Date Required:
in ad toy Pace On Ice:
I es I ]NO
$ ale Dispofal:
k),01sposcasapp5ale ( l Return
I Archive:
]Hold:
Rush:
[ ] Same Day I I Next Day
I ]? Day I 13 Day I 14 Day I 15 Day
(Expedite Charges Apply)
Field Filtered (if applicable):
f I Yes j ]NO
Analysis:
'Matrix Codes (Insert'in Matrix box below): Drinking Water(DW), Ground Water(GW), Wastewater(WW),
Product (P), Soil/Solid (SL), Oil (OIL), Wipe (WP), Air (AR), Tissue (TS), Bioassay (B), Vapor (V), Other (OT)
Customer Sample ID
Matrix'
Comp/
Grab
Collected (Or
Composite Start)
Composite End
Res
Cl
not
Cins
Date
Time
Dare
Time
(
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id-ir
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Customer Remarks / Special Conditions / Possible Hazards:
TYPe of Ice Used: bV6 Blue Dry None
SHORT HOLDS PRESENT (02 hours)'. .1' N. N/A
Lab Sample Temperature Info:
Temp Blank Rece ved: Y N N'�
Therm ID# �I �. I. n<
Cooler 1 Temp Upon ReceiptiNOC
Cooler 1 Therm Corr. Factor. �' OC
Coolers Corrected Temp: oC
Comments:
Packing Material Used:
Wb.Tracking H: ^ tl
C 4
Radchem sample(s) screened (<500 cpm): Y N' NA`
-
Samples received via:
FEDEX UFS Client Courier Pare Courser
Relinquished by/Company: (Signature)
Date/ITime: 'jG
/. �� ��xi.7
Received by/Com?any: (Signature)/
j\� Vf✓V �%l�kk!
Dare/Time: j `/
1f. 17 111`I �.)+�Y
MT1L LAB USE ONLY
Table A: -.
Accmum:
Rbinquished by/'o y:(Signature)
D e/➢Ime:
Z
Received by/Company:(Signature)
Date/Time:')
Template:
Prelogin:
Trip Blank Received: Y N NA
HCL M¢OH TSP Other
Relinquished by/Company: (Signature)
Date/Time
Received by/Company:(Signature) _ _ _ .
Date,Time: -
_ _
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PB: �� i��.J i[.
- --
Non Conformance(s)C-Pace:
YES / NO
of: %