NCG020330_2022 DMR_20221031

NCDEQ Division of Energy,Mineral and Land Resources
Stormwater Discharge Monitoring Report(DMR)Form for NCG020000
Active and Inactive Mining Sites
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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.NCGO2 0330 Person Collecting Samples:J.Cassada,ECT,Inc.
Facility Name: 3M Pittsboro Laboratory Name: Pace Labs;Con-test,a Pace Analytical Laboratory
Facility County:Chatham Laboratory Cert,No.: 633;652
Discharge during this period:Q Yes 0 No (if no,skip to signature and date)
Has your facility implemented mandatory Tier response actions this sample period for any benchmark exceedances?QYes 0 No
If so,which Tier(I,II,or III)?Tier 1
A copy of this DMR has been uploaded electronically via https://edocs.deq.nc.gov/Forms/SW-DMR ED Yes El No
Date Uploaded:
Analytical Monitoring Requirements for Outfalls with Industrial Activities—Benchmarks in(Red)
Parameter Parameter Outfall 001 Outfall 002 Outfall 004 Outfall005 Outfall 006
Code
N/A Receiving Stream Class Class C Class C Class C Class C Class C
N/A Date Sample Collected MM/DD/YYYY 9/30/2022 9/30/2022 9/30/2022 9/30/2022 9/30/2022
46529 24-Hour Rainfall in inches 0.28 0.28 0.28 0.28 0.28
C0530 TSS in mg/L 48.0 no flow 8.9 5.8 15.4
00070 Turbidity of discharge 64.4 no flow 16.8 5.1 18.3
- Turbidity downstream of discharge N/A no flow N/A WA N/A
- Turbidity upstream of discharge N/A no flow N/A N/A N/A
Additional parameters for outfalls in drainage areas that use>55 gallons per month of new hydraulic oil on average
NCOIL Estimated New Motor/Hydraulic Oil
Usage in gal/month N/A no flow N/A N/A 130
00552 Non-Polar Oil&Grease in mg/L N/A no flow N/A N/A <5.0
Additional parameters for Clay Mines
01105 Aluminum,total in mg/L(0.75 RN,
0.24 SW)
01092 Zinc,total(as Zn)in mg/L(0.126 FW,
00951 Fluoride,total in mg/L 6.0)
00900 Hardness,total
00400 pH,in standard units(6.0-9.0 RN,
6.8-8.5 Sv.
01097 Antimony,total in mg/L(0.34 FW,
01002 Arsenic,total in mg/L -.15 FW,0.069
C0034 Chromium III in mg/L(0.905 RN,N/A
Additional parameters for Feldspar Ore Mines
01105 Aluminum,total in mg/L(0.75
01092 Zinc,total(as Zn)in mg/L(0.126 Fw,
0.095 SW}
00951 Fluoride,total in mg/L

Additional parameters for Lithium Ore Mines
01105 Aluminum,total in mg/L
00951 Fluoride,total in mg/L
Additional parameters for Phosphate Mines
00951 Fluoride,total in mg/L
39344 Alpha,Gross Particle Activity
Additional parameters for Industrial Sand Mines
00951 Fluoride,total in mg/L _.0)
C00334 Chromium III in mg/L 905 FA.N,A
39344 Alpha,Gross Particle Activity
Outfalls to Outstanding Resource Waters(ORW),High Quality Waters(HQW),Trout Waters(Tr)and Primary Nursery Areas(PNA)
have a benchmark TSS limit of .All other water classifications have a benchmark of
See F-5 of the NCG020000 General Permit for turbidity requirements.
(Freshwater) (Saltwater)
Notes(optional):Outfall 002 not discharging at 1100,water level—6 inches below discharge point
"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 informmincludi the possibility of fi and imprisonment for knowing violations."
771.
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Signature of Permittee or elegat Authorized Individual Date
S44 ,S•etn n-,mrr • 60M co • 64Z •yol0
Email Address Phone Number
Results for Total Settable Solids
Outfall 001:<0.10 mL/L/hr
Outfall 003:<0.10 mL/L/hr
Outfall 004:<0.10 mL/L/hr
Outfall 005:<0.10 mL/L/hr
Outfall 006:<0.10 mL/L/hr