NCG020330_2022 DMR_20220712

NCDEQ Division of Energy, Mineral and Land Resources
Stormwater Discharge Monitoring Report (DMR) Form for NCG020000
Active and Inactive Mining Sites
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. NCG02 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:
Yes
No (if no, skip to signature and date)
Has your facility implemented mandatory Tier response actions this sample period for any benchmark exceedances? Yes 0 No
If so, which Tier (I, II, or III)? Tier 1
A copy of this DMR has been uploaded electronically via https://edocs.deg.nc.gov/Forms/SW-DMR Yes FINo
Date Uploaded: 7/12/2022
Analytical Monitoring Requirements for Outfalls with Industrial Activities — Benchmarks in (Red)
Parameter
Code
Parameter
Outfall001
Outfall002
Out'fall004
Outfall005
Outfall006
N/A
Receiving Stream Class
Class C
Class C
Class C
Class C
Class C
N/A
Date Sample Collected MM/DD/YYYY
5/27/2022
5/27/2022
5/27/2022
5/27/2022
5/27/2022
46529
24-Hour Rainfall in inches
3.14
3.14
3.14
3.14
3.14
C0530
TSS in mg/L 100 or 50'
317
90.1
192
11.1
340
00070
Turbidity of discharge
544
163
276
12.8
455
-
Turbidity downstream of discharge
N/A
N/A
N/A
N/A
N/A
-
Turbidity upstream of discharge
N/A
N/A
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
Estimated New Motor/Hydraulic Oil
NCOIL
Usage in gal/month
N/A
N/A
N/A
N/A
130
00552
Non -Polar Oil & Grease in mg/L (15)
N/A
N/A
N/A
N/A
<4.9
Additional parameters for Clay Mines
Aluminum, total in mg/L (0.75 FW,
01105
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 FW,
.>.8-8.5 SW)
Antimony, total in mg/L (0.34 FW,
01097
01002
Arsenic, total in mg/L (0.15 FW, 0.069
C0034
Chromium III in mg/L (0.90S FW, N/A
Additional parameters for Feldspar Ore Mines
Aluminum, total in mg/L '0.75 FW,
01105
3.24 S'u.
Zinc, total (as Zn) in mg/L (0.126 FW,
01092
1.095 SW)
00951
Fluoride, total in mgA (6.0)

Additional parameters for Lithium Ore Mines
01105
Aluminum, total in mg/L (0.75 FW,
00951
Fluoride, total in mg/L (6.0)
Additional parameters for Phosphate Mines
00951
Fluoride, total in mg/L (6.0)
39344
Alpha, Gross Particle Activity
Additional parameters for Industrial Sand Mines
00951
Fluoride, total in mg/L (6.0)
C00334
Chromium III in mg/L (0.905 FW, 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): Tier 1 notification sent via email to [e-mail]
"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, inclugipg the possibility of fines and imprisonment for knowing violations."
Signature of Permittee orkDelegated Authorized
ZIZzL2- 2-
Date
[e-mail] 919.642.4010
Email Address Phone Number