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HomeMy WebLinkAboutNCG030145_DMR_20210406Semi-annual Stormwater Discharge Monitoring Report for North Carolina Division of Water Quali y General Permit No. NCG030000 Date submitted /' CERTIFICATE OF COVERAGENo. NCG030145 FACILITY NAME: Newton Instruments ,(=Gf= J FT) COUNTY: Granville (i 2021 PERSON COLLECTING SAMPLES: � pPR 2 LABORATORY: NAM N-TRAL FILES Comments on sample collection or analysis: Monthly sd'rJ{AIIB¢c;ECTION Part A: Stormwater Benchmarks and Monitoring Results M No discharge this period?' SAMPLE COLLECTION YEAR: 2021 SAMPLE PERIOD ❑ Jan -June ❑ July -Dec or ®Monthly' March 2021 DISCHARGING TO CLASS ❑ORW ®HQW ❑Trout ❑PNA ❑Zero -flow ❑Water Supply ❑SA ❑Other PLEASE REMEMBER TO SIGN ON PAGES 2 AND/OR 34 Non -Polar Date Sample 24-hour rainfall Total Suspended pH, O&G/Total Total Toxic Outfall No. Collected 1 amount, Solids Standard Copper Lead Zinc Petroleum Organics s (mo/dd/yr) Inches' units Hydrocarbons Benchmarks ===> _ - 100 mg/L 6.0 — 9.0 0.007 mg/L 0.03 mg/L 0.067 mg/L 15 mg/L 1 mg/L 001 ' Monthly sampling (instead of semi-annual) must begin with the second consecutive benchmark exceedance for the same parameter at the same outfall. '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 maybe eligible for a waiver of the rain gauge requirement. ' See General Permit, Table 3 identifying the especially sensitive receiving water classifications where the more protective benchmark applies. 'Total Toxic Organics sampling is applicable only for those facilities which perform metal finishing operations, manufacture semiconductors, manufacture electronic crystals, or manufacture cathode ray tubes. For purposes of this permit the definition of Total Toxic Organics is that definition contained in the EPA Effluent Guidelines for the facility subject to the requirement to sample (for metal finishing use the definition as found in 40 CFR 433.11; for semiconductor manufacture use the definition as found in 40 CFR 469.12; for electronic crystal manufacture use the definition as found in 40 CFR 469.22; and for cathode ray tube manufacture use the definition found in 40 CFR 469.31). Facilities that incorporate a solvent management plan into the Stormwater Pollution Prevention Plan may so certify, and the requirement for TTO monitoring may be waived. The solvent management plan shall include a list of the total toxic organic compounds used and the other elements listed in the General Permit. For those facilities electing to employ the TTO monitoring waiver, the discharger shall sign the following certification statement: "Based upon my inquiry of the person or persons directly responsible for managing compliance with the permit monitoring requirement for total toxic organics (TTO), I certify that to the best of my knowledge and belief, no dumping of concentrated toxic organics into the stormwater or areas which are exposed to rainfall or Permit Date: 11/1/2017-10/31/2022 SWU-245, last revised 10/25/2012 Page 1 of 3 stormwater runoff has occurred since filing the last discharge monitoring report. I further certify that this facility is implementing the all the provisions of the solvent management plan included in the Stormwater Pollution Prevention Plan." Name (Print name) Title (Print title) (Signature) (Date) Note: Results must be reported in numerical format. 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 mg/L", where XX is the numerical value of the detection limit, reporting limit, etc. in mg/L. Note: If you report a sample value in excess of the benchmark, you must implement Tier 1, Tier 1, 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. ❑ No discharge this period?' Outfall No. Date Sample Collected' (mo/dd/yr) 24-hour rainfall amount, Inches' Non -polar O&G/TPH by EPA 1664 (SGT-HEM) Total Suspended Solids pH Benchmarks =__> _ - 15 mg/L 300 mg/L or 50 mg/L* 6.0 — 9.0 SU Footnotes from Part A also apply to this Part B * See General Permit text, Table 5, identifying the especially sensitive receiving water classifications where the more protective benchmark applies. Note: If you report a sample value in excess of the benchmark, you must implement Tier 1, Tier 1, or Tier 3 responses. see General Permit text. Permit Date: 11/1/2017-10/31/2022 SWU-245, last revised 10/25/2012 Page 2 of 3 FOR PART A 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 ®NO ❑ IF YES, HAVE YOU CONTACTED THE DWQ REGIONAL OFFICE?YES ® NO ❑ REGIONAL OFFICE CONTACT NAME: John Holley 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." (Signature 0/,ZV (Date) Permit Date: 11/1/2017-10/31/2022 SWU-245, last revised 10/25/2012 Page 3 of 3