NCG200495_DMR_20210715

Semi-annual Stormwater Discharge Monitoring Report DMR
for North Carolina DEMLR General Permit No. NCG200000 — Scrap Metal Recycling
Date submitted _ 71/4 I ZOZ I -- +
:RTIFICATE OF COVERAGE NO. NCG20 04q,6 SAMPLE COLLECiIONj EAR 2-0z r
tar 5 SAMPLE PERIOD Jan -June ❑ July -Dec
ACILiTY NAME
or ❑ Monthly' (month)
COUNTY DISCHARGING TO CLASS ❑ORW ❑HQW ❑Trout ❑PNA
PERSON COLLECTING SAMPLES k20A.2 e I I ❑Zero -flow ❑ ater Supply ❑SA
LABORATORY b Cert. q Qgo []Saltwater Other G
Comments on sample collection or nalysis:
PLEASE REMEMBER TO SIGN ON THE REVERSE a
Part A: Stormwater Benchmarks and Monitoring Results
Outfali No.
Date Sample
Collected
(mo/dd/yr)
24-hour rainfall
amount,
inches'
Benchmarks==>
-
agEl
rotal Suspended
Solids
100 mg/L or
so mg/O
No discharge this
Non -polar oil & grease
Chemical Oxygen
EPA Method 1664
Copper,
Lead,
Zinc,
Demand
(SGT-HEM)
Total
Total
Total
0.010 mg/L or
0.075 mg/L or
0.126 mg/L or
120 mg/L
15 mg/L
0.005 mg/Ls
0.220 mg/L'
0.095 mg/LS
2 Monthly sampling (instead of semi-annual) must begin with the second consecutive benchmark exceedance for the same parameter at thesame outfall.
ZFor 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 text, Table 1, identifying protected receiving water classifications where the more protective TSS benchmark applies.
sStormwater discharges into receiving waters classified as saltwater are subject to the second listed benchmark.
Note: Results must be reported In numerical format. For example, 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 re 3orted in the format "<XX m L" where XX is the numerical value of the
!tection limit, reporting limit, quantitation limit, etc. in mg/L.
Note: if ou re ort a sample value in excess of the benchmark you must implement Tier .1 Tier 1 or Tier 3 responses. See General Permit.
Permit Date: 08/01/2019-05/31/2024
RECEIVED
JUL 2 4 2021
CENTRAL FILES
DWR,SCCTlOr,N!
Swu-256, last revised 09/04/2019
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Part B: Vehicle Maintenance Area Monitoring Results: only for facilities averaging > 5S gal of new oil per month.
n At^ tfic.-hnrna this neriod?2
Outfali No.
Benchmoria --->
Date Sample
Collected'
(mo/dd/yr)
_
24•hour rainfall
amount,
Inchess
_
Non -polar O&G by EPA
16641SGT-HEM)
is mg/L
Total suspended Solids
100 mg/L or 50 mg/L"
New Motor Ofl or Hydraulic
Oil Usage, Annual average
gal/mo
-
Footnotes from Part A also apply to this Part 6
Note If you report a sample value in excess of the benchmark you must Implement T/er 1, rer 2 or Tier 3 responses. See General Permit.
FOR PART A AND PART B MONITORING RESULTS:
• A SINGLE BENCHMARK EXCEEDANCE TRIGGERS TIER 1 REQUIREMENTS.
• 2 EXCEEDANCES IN A ROW FOR THE SAME PARAMETER AT THE SAME OUTFALL TRIGGER TIER 2 REQUIREMENTS.
• TIER 1 HAS YOUR FACILITY HAD 4 OR MORE BENCHMARK EXCEEDANCES FOR THE SAME PARAMETER AT ANYONE OUTFALL? YES ❑ N0*
IF YES, HAVE YOU CONTACTED THE DEMUR REGIONAL OFFICE AS REQUIRED BYTHE PERMIT? YES ❑ NO ❑
REGIONAL OFFICE CONTACT NAME:
--
Mallon arialnal and one copy of thLs DMR including all "No Discharge" reports within W days of receipt of the lab results for at ead o�gnitorina period
IG the case of "No Ditchame" reports) ta:
Division of Water Resources
Attn: DWR 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."
(Signature of Permittee) (0 te)
Permit Date: 08101/2019-05/31/2024 SWU-256, last revised 09/04/2019
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