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HomeMy WebLinkAboutNCG080791_DMR_20201030Semi-annual Stormwater Discharge Monitoring Report for North Carolina Division of Energy, Mineral and Land Resources General Permit No. NCG080000 Date submitted 10/30/2020 CERTIFICATE OF COVERAGE NO. NCG08 0 7 9 1 FACILITY NAME Shamrock Environmental Corporation COUNTY Guilford PERSON COLLECTING SAMPLES Jim Hollingsworth LABORATORY Meritch/Shamrock Lab Cert. # 165/5481 Comments on sample collection or analysis: SAMPLE COLLECTION YEAR 2020 SAMPLE PERIOD ❑ Jan -June Q July -Dec or ❑ Monthly' (month) DISCHARGING TO CLASS ❑ORW ❑HQW ❑Trout ❑PNA ❑Zero -flow ❑Water Supply [:]SA ❑■ Other WS-v; NSW PLEASE REMEMBER TO SIGN ON THE REVERSE 4 Did this facility perform Vehicle Maintenance Activities using more than 55 gallons of new oil per month? ❑ yes K no (if yes• complete Part A) Part A: Vehicle & Equipment Maintenance Areas Monitoring Requirements (If applicable) ❑ No discharge this period' Outfall No. Date Sample Collected) (mo/dd/yr) 24-hour rainfall amount, Inches' Non -Polar Oil & Grease mg/L Total Suspended Solids, mg/L New Motor or Hydraulic Oil Usage, gal/mon Benchmarks _ - 15 100 or SW - Parameter Code - 46529 00552 C0530 NCOI L SW-001 09/17/2020 2.36 <5 6 NA 1 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 1, 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". Permit Date: 11/1/2018-5/31/2021 SWU-248, last revised 11/1/2018 Page 1 of 2 Part B: Oil/water Separators and Secondary Containment Areas at Petroleum Bulk Stations and Terminals (If applicable) ❑ No discharge this period2 Outfall No. Date Sample Collected' (mo/dd/yr) 24-hour rainfall amount, Inthes3 Sample Collected' mo/dd/yr Total Suspended Solids, mg/L pH, Standard units Non -Polar Oil & Grease, mg/L l irif^ flw - - 160 or 504 6.0 — 9.0 15 017 16011*i We - 46529 - C0530 00400 00552 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 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 Q IF YES, HAVE YOU CONTACTED THE DEMLR REGIONAL OFFICE? YES ❑ NO ❑ REGIONAL OFFICE CONTACT NAME: Mail an oriainal copy of this DMR, including all "No Discharge" reports, within 30 days of receipt of the lab results (or 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: "1 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 Permit Date: 11/1/2018-5/31/2021 �X2/Ze 2D Date SWU-248, last revised 11/1/2018 Page 2 of 2 T� NYIRONMENTA! CORPORATION October 30, 2020 Division of Water Quality Attn: DWQ Central Files 1617 Mail Service Center Raleigh, North Carolina 27699-1617 Re: NCG080000 COI NCG080791 To Whom it May Concern: 6106 Corporate Park Drive Browns Summit, NC 27214 336-375-1989 • 800-881-1098 • Fax 877-844-8698 www.shamrockenviro.com • info@shamrockenviro.com RECEIVED Nov 0 9 2020 CENTRAL FILES DWR SECTION Please find enclosed documents. This data consists of first semi-annual sampling. The results of the sampling event demonstrate conformance with permit standards except for non -polar oil & grease. Tier 1 corrective actions were implemented for previous sampling event and were found to be effective. For any questions related to this matter, please contact me at 800.881.1098. Sincerely, CI Jim lingswo H, C , CHMM, REM Dir for of Health, Safety &. Environmental Enclosure Cc: Tim Hyatt Chris Freeman Steve Davis Greg Kiser File: _SWDMRCover.R Page 1 of 1