NCG120051_DMR_20220331

Semi-annual Stormwater Discharge Monitoring Report
for North Carolina Division of Water Quality General Permit No. NCG120000
Date submitted 31 March 2022
CERTIFICATE OF COVERAGE NO. NCG120051 SAMPLE COLLECTION YEAR 2022
FACILITY NAME Uwharrie Environmental SAMPLE PERIOD X Jan-June ❑July-Dec
COUNTY Montgomery or ❑ Monthly' (month)
PERSON COLLECTING SAMPLES Brian Scott DISCHARGING TO CLASS ❑ORW ❑HQW ❑Trout ❑PNA
LABORATORY_ENCO Labs_Lab Cert.#_CE19285 ❑Zero-flow ❑Water Supply ❑SA
Comments on sample collection or analysis:
X Other C
4Pp 13 2022 PLEASE REMEMBER TO SIGN ON THE REVERSE 4
Part A: Stormwater Benchmarks and Monitoring Results ik
No discharge this period?z
Outfall No. Date Sample 24-hour rainfall
Collected' amount, Chemical Oxygen Demand Fecal Coliform Total Suspended Solids
(mo/dd/yr) Inches
Benchmarks===> - - 120 mg/L 1000 count per 100 mL 100 mg/L or 50 mg/O
1 3/17/22 1.9" 27 490 110
2 3/17/22 1.9" 23 1800 710
5B 3/17/22 1.9" 38 2400 190
6B 3/17/22 1.9" 140 1 7300 680
7A 3/17/22 1.9" 10 35 6.5
7C 3/17/22 1.9" 10 15 39
'Monthly sampling(instead of semi-annual) must begin with the second consecutive benchmark exceedance for the same parameter at the same outfall.
2 For sampling periods with no discharge at any single outfall,you must still submit this discharge monitoring report with a checkmark here.
'The 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 3, identifying the especially sensitive receiving water classifications where the more protective benchmark applies.
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 reported in the format."<XX me/L".where XX is the numerical value of the
detection limit, reporting limit,etc. in mg/L. Conversely,where fecal coliform results exceed the dilution upper limit, report the result as">XX".
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.
Permit Date: 11/1/2012-10/31/2017 SWU-248,last revised 10/25/2012
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❑No discharge this period?'
Outfall No. Date Sample 24-hour rainfall
Collected' amount, Non-polar O&G/TPH by
(mo/dd/yr) Inche53 EPA 1664(SGT-HEM( Total Suspended Solids pH
Benchmarks===> _ - 15 mg/L 100 mg/L or 50 mg/L4 6.0-9.0 SU
76 03/17/22 1.9" 4.21 31 6.27
Footnotes from Part A also apply to this Part B
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 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 [—]NOD
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."
w;&, o'411, 3/31/2022
(Signature Permi e) (Date)
Permit Date:11/1/2012-10/31/2017 SW U-248,last revised 10/25/2012
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