NCG081012_2022 DMR_20220708

MONITORING REPORT
Permit Number NCS 081012
FACILITY NAME Operations Center
PERSON COLLECTING SAMPLE(S) Kate Flerninq
CERTIFIED LABORATORY(S) Pace Analytical —Lab 912
Lab 4
Part A: Specific Monitoring Requirements
SAMPLES COLLECTED DURING CALENDAR YEAR: 2022
(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-11nion
PHONE NO. (704 296-4286
SIGNATURE OF PERMITTEE OR DESIGNEE
REQUIRED ON PAGE
Outfall
Date
50050
No.
Sample
Collected
Total
Flow if app.)
Total
Rainfall
mo/dd/yr
MG
inches
001
3/9/22
No Discharge
0.0
002
3/9/22
N/A
0.0
003
3[9/22
No Discharge
0.0
Does this facility perform Vehicle Maintenance Activities using more than 55 gallons of new motor oil per month? ()yes (R)no
(if yes, complete Part B)
Part B: Vehicle Maintenance Activitv Monitoring Requirements
Outfall
Date
50050
00556
00530
00400
Total Flow
Total
Oil & Grease
Non -polar
Total
pH
New Motor
No.
Sample
Collected
(if applicable)
Rainfall
(if appl-)
O&G/TPH
Suspended
Oil Usage
(Method 1664
Solids
SGT-HEM), if
appl.
mo/dd/yr
MG
inches
mg/I
mg/l
unit
gal/mo
001
6/30/22
No Discharge
0.0
No Discharge
No Discharge
No Discharge
No Discharge
002
6/30/22
N/A
0.0
ND
13.5
6.79
0
003
t:: f6/30122
No Discharge
0.0
No Discharge
No Discharge
No Discharqe
No Dischar.qe
Form SWU-247, last revised 611212015
Page 1 of 2

STORM EVENT CHARACTERISTICS:
Date 6130/22
Total Event Precipitation (inches): 0.0
Event Duration (hours): 0 (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 Energy Mineral and Land Resources
Attn: Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
"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 poibility of fines and imprisonment for knowing violations."
` \ I N,
7/8/22
(Date)
Form S WU-247, lust revised 611212015
Page 2 of 2

aceAnalytical
www.pacelabs.com
1
ImRr��s ►.[�Y ►a
Kate Fleming
Union County Public Works
8299 Kensington Drive
Waxhaw, NC 28173
RE: Project: QUARTERLY STORMWATER
Pace Project No.: 92612718
Dear Kate Fleming:
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Enclosed are the analytical results for sample(s) received by the laboratory on July 01, 2022. The results relate only to the
samples included in this report. Results reported herein conform to the applicable TNIINELAC 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
If you have any questions concerning this report, please feel free to contact me.
Sincerely,
Matthew Brainard
[e-mail]
[phone]
Project Manager
Enclosures
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 1 of 12

aceAnalytical "
www.pacelabs.cem
t
Mt:����C�TL`�Cr�l L
Project: QUARTERLY STORMWATER
Pace Project No.: 92612718
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
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
9800 Kincey Ave, Suite 100
Huntersville, NC 28078
[phone]
Page 2 of 12

Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
ceAnalytical Huntersvlle, NG 28078
_ a
www.pacelabs.com [phone]
i
Project: QUARTERLY STORMWATER
Pace Project No.: 92612718
Analytes
Lab ID Sample ID Method Analysts Reported Laboratory
92612718001 002-1 SM 2540D-2015 MAB2 1 PASI-A
92612718002 002-2/002-3 EPA 1664B REL 1 PASI-C
PASI-A = Pace Analytical Services -Asheville
PASI-C = Pace Analytical Services - Charlotte
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 12

C e AnalXical
www.pacelabsxam
ANALYTICAL RESULTS
Project: QUARTERLY STORMWATER
Pace Project No.: 92612718
Pace Analytical Services, LLC
9800 Kincey Ave, Suite 100
Huntersville, NC 28078
[phone]
Sample: 002-1 Lab ID: 92612718001 Collected: 06/30/22 09:02 Received: 07101f22 07:30 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 -Asheville
Total Suspended Solids 13.5 mg/L 2.5 1 07/05/22 10:46
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 07108/2022 12:55 PM without the written consent of Pace Analytical Services, LLC. Page 4 of 12

ceAnalj6cal"
www.pacolabs.com
Pace Analytical Services, LLC
9800 Kinsey Ave. Suite 100
Huntersville, NC 28078
[phone]
Project: QUARTERLY STORMWATER
Pace Project No.: 92612718
Sample: 002-21002-3 Lab ID; 92612718002 Collected: 06/30/22 09:02 Received: 07/01/22 07:30 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qua]
1664 SGT-HEM, TPH
Total Petroleum Hydrocarbons
Date: 07/08/2022 12:55 PM
Analytical Method: EPA 1664E
Pace Analytical Services - Charlotte
ND mg/L 4.9 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
07/05/22 00:45
Page 5 of 12

Pace Analytical Services, LLC
aceAnalj4ical'
9800 Kincey Ave, Suite 100
Huntersville, NC 28078
www.pacolabs.com
[phone]
QUALITY CONTROL DATA
Project: QUARTERLY STORMWATER
Pace Project No.: 92612718
QC Batch: 708491
Analysis Method: EPA 1664B
QC Batch Method: EPA 1664E
Analysis Description: 1664 SGT-HEM, TPH
Laboratory: Pace Analytical Services - Charlotte
Associated Lab Samples: 92612718002
METHOD BLANK: 3695092
Matrix: Water
Associated Lab Samples: 92612718002
Blank Reporting
Parameter
Units
Result Limit Analyzed Qualifiers
Total Petroleum Hydrocarbons
mg/L
ND 5.0 07/05/22 00:45
LABORATORY CONTROL SAMPLE: 3695093
Spike LCS LCS % Rec
Pafameter
Units
Conc. Result % Rec Limits Qualifiers
Total Petroleum Hydrocarbons
mg/L
20 17.8 89 64-132
MATRIX SPIKE SAMPLE: 3695094
35725328001 Spike MS MS
% Rec
Parameter
Units
Result Conc. Result % Rec
Limits Qualifiers
Total Petroleum Hydrocarbons
mg/L
L9U 19.6 16.9 85
64-132
SAMPLE DUPLICATE: 3695095
92612478002 Dup
Parameter
Units
Result Result RPD Qualifiers
Total Petroleum Hydrocarbons
mg/L
4.9 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: 07/08/2022 12:55 PM without the written consent of Pace Analytical Services, LLC. Page 6 of 12

aceAnalj cal
www.pacelabs.com
E
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Project: QUARTERLY STORMWATER
Pace Project No.: 92612718
QC Batch: 708568
Analysis Method:
SM 2540D-2015
QC Batch Method: SM 254OD-2015
Analysis Description:
2540D Total Suspended Solids
Laboratory:
Pace Analytical Services -Asheville
Associated Lab Samples: 92612718001
METHOD BLANK: 3695317
Matrix: Water
Associated Lab Samples: 92612718001
Blank Reporting
Parameter
Units
Result Limit
Analyzed Qualifiers
Total Suspended Solids
mg(L
ND
2.5 07/05/22 10:34
LABORATORY CONTROL SAMPLE: 3695318
Spike LCS
LCS % Rec
Parameter
Units
Conc. Result
% Rec Limits Qualifiers
Total Suspended Solids
mg(L
250 238
95 90-110
SAMPLE DUPLICATE: 3695319
92612506003 Dup
Parameter
Units
Result Result
RPD Qualifiers
Total Suspended Solids
mg1L
6.5
10.6 48 D6
SAMPLE DUPLICATE: 3695454
92612497001 Dup
Parameter
Units
Result Result
RPD Qualifiers
Total Suspended Solids
mg(L
41.0
42.5 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: 07/08/2022 12:55 PM without the written consent of Pace Analytical Services, LLC. Page 7 of 12

aceAnalytieal
www.pacelabs.com
Project: QUARTERLY STORMWATER
Pace Project No.: 92612718
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.
Pace Analytical Services, LLC
9800 Kincey Ave, Suite 100
Huntersville, NC 28078
[phone]
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.
TNI - The NELAC Institute,
ANALYTE QUALIFIERS
D6 The precision between the sample and sample duplicate exceeded laboratory control limits.
This report shall not be reproduced, except in full,
Date: 07/08/2022 12:55 PM without the written consent of Pace Analytical Services, LLC, Page 8 of 12

1F ;a7neAnalytical'
www.pacelabs.com
Project: QUARTERLY STORMWATER
Pace Project No.: 92612718
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Lab ID
Sample ID
QC Batch Method
QC Batch Analytical Method
92612718002
92612718001
002-2/002-3
002-1
EPA 1664B
SM 2540D-2015
708491
708568
Date: 07/08/2022 12:55 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 9 of 12

Qce — -- - � �-......_... ..,,,.,..., , .,a,.�Nry %,.vrrurrttvtr c.rNutr rNeceipt
,t y Cil�l� —
wi
Effective Date: 05/12/202205/12/2022
Laboratory receiving samples:
Asheville ❑ Eden❑ Greenwood ❑ Huntersville Raleigh❑ Mechar.svillP—i atl�ntnl—I
. Client Name: �1V1ipa) ��'(ifi� d�liL VJ�CIi{ 1. " l^J ' ,ni. (� ��++
Project H W #'' .? U 1
Courier: ❑Fed Ex ❑UPS ❑LISPS ❑Client
❑ Commercial ace ❑Other: I 1111111111111111111111
92612`T18
Date/initials Person Examining Contents,
Packing Material; Bubble Wrap ❑Bubble Bags ❑None Other
❑ Biological Tissu f ozen?
ThermoitIRGurill):
er : ❑Yes -]NoJA
2
Type of ice: et ❑Blue ❑None
Correction Factor: ff�
Cagier Temp; ° Add/Subtract (IC) �.J Temp,3iaeuld bee#�de f
Cooler Temp Corrected (°C); []Samples out of temp criteria. Samples on ice, cooling process
Regulated Soil( begun
USDA Re
g ( ❑ N/A, tersample)
j Did samples originate in a ou ranting Anna
(check maps)? Yes q
-- - - -
^ ,
v �ti
uta sampies originate trom a foreign source (intern tonally,
includingHawaii and Puerto Riccip (]yes o
Chain of Custody Present?
Comments/Discrepancy:
s
ON.
❑N/A
1.
Samples Arrived within Hold Time?
es
❑N
❑N/A
2.
- -
Short Hold Time Analysis (02 hr. ?
❑Yes
❑NJA
3.
4.
5.
6.
Rush Turn Around Time Requested? ❑ s o ❑N/A
Sufficient Volume? s ❑No ❑N/A
Correct Containers Used? s ❑No ❑N/A
-Pace Containers Used?
es
❑N
❑N/A
Containers Intact?
es
❑ o
❑NJA
7.
8,
Dissolved analysis; 5ampies Field Filtered? ❑Y s a ❑N/A
Sample Labels Match COC?
es
❑No-
❑N/A
9.
-includes Date/Time/ID/Analysis Matrix:
W
//A110.
Headspace in VOA Vials (>5.6mm)?
[]Yes
o
Trip Blank Present?
Oyes
o
❑N/A-
11.
Trip Blank Custody Seals Present?
❑Yes
❑No
L /A
COMMENTS/SAMPLE DISCREPANCY
!!S! m - r
�sorar.,sa.r.s.,:t.:.•aarsssar�;,
Person contacted:
Protect Manager SCURF Resriew,
Project h1anager su RPvi}+,AV
Qualtrax ID: 69614
Field Data Required? ❑Yes []No
_ Date/Time:
_. _.___.__ [Sato• _._ -__ - -. - _
Pagel of 2 Page 10 of 12

vace
Effective Date: 051121202205/12/2022
WO# *Check mark top half of box if PH and/or dechlorination is verified and Project 1 9^461271"
within the acceptance range for preservation samples. PM: MW8 Due Date: 07/18/22
Exceptions: VOA, Coliform, TOC, Oil and Grease, DRO/8015 (water) DOC, LLHg CLIENT: 92—Union Cou
"Bottom half of box is to list number of bottles
***Check all unpreserved Nitrates for chlorine
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pH Adjustment Log for Preserved Sarnples
ID I Type of Preservative PH upon receipt Date preservation adjusted Time preservatiorl, Amount of Preservative Lot N
adjusted
I I added
I Ge sent to the North Carolina oENR Certification Office (i.e.
Out of hold, incorrect Preservative, out of temp, incorrect containers.
Qualtrax ID: 69614 Page 2 of 2 Page 11 of 12

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Page 12 of 12