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HomeMy WebLinkAboutNCS000151_Draft Permit Cover Letter_20201013ROY COOPER Governor MICHAEL S. REGAN Secretary BRIAN WRENN Acting Director Savannah Carroll Arauco Panels USA LLC 985 Corinth Road Moncure, NC 27559 Ms. Carroll: NORTH CAROLINA Environmental Quality October 13, 2020 Subject: Draft NPDES Stormwater Permit Permit No. NCS000151 Arauco Panels USA LLC - Moncure Facility Chatham County The Division of Energy, Mineral, and Land Resources' Stormwater Permitting Program acknowledges receipt of your renewal application for coverage under NPDES Permit No. NCS000151 on December 4, 2013. Enclosed with this letter is a copy of the DRAFT stormwater permit for your facility. Please review the draft carefully to ensure thorough understanding of the conditions and requirements it contains. The draft permit contains the following significant changes from the facility's current permit: 1. You are required to collect analytical and qualitative monitoring samples during "measurable storm events" as defined in Part II, Section B. This term is different from the "representative storm event" in earlier permits. 2. Requirements for the Stormwater Pollution Plan (SPPP) have been updated in Part II, Section A. 3. Changes have been made to several monitoring parameters, including a change to two benchmarks. Stormwater benchmarks are not permit limits, but rather guidelines for implementing the Stormwater Pollution Prevention Plan (SPPP). A benchmark exceedance is not a permit violation; however, the permittee must respond to exceedances as directed in the Tiers. • Vehicle maintenance (Tables 5,6) monitoring parameters have been revised as follows: QN or-th Carolina Department of Environmental Quality I Division of Energy, Mineral and Land Resources E512 North Salisbury Street 1 1612 Mail Service Center I Raleigh, North Carolina 27699-1612 oecemrancr Ennrenmenm o� r 919.707.9200 o Non -Polar Oil & Grease [EPA Method 1664 (SGT-HEM)] replaces Oil & Grease/TPH. The benchmark for Non -polar Oil & Grease using this method is 15 mg/L. This requirement appears in all individual stormwater permits; however, it only applies to facilities that perform onsite vehicle maintenance activities. If the facility begins vehicle maintenance during the permit cycle, the requirements shall apply. o pH monitoring is no longer required for discharges only associated with vehicle maintenance activities. 4. Tiered responses have been added to this permit. Exceedances of benchmark values require the permittee to increase monitoring, increase management actions, increase record keeping, and/or install stormwater Best Management Practices (BMPs) in a tiered program in accordance with Part II, Section B of this permit. S. A new section on Special Conditions has been added in Part II, Section E to comply with federal regulations requiring electronic submittal of discharge monitoring reports. 6. Civil and administrative penalty amounts have been updated to reflect current federal law in Part III, Section A, 2 (b) and (g). Please review the draft permit and submit any comments to me. Due to our large backlog and need to finalize permits in a timely manner, please submit comments no later than 15 days following your receipt of the draft. If you should need more time to review the permit, please contact me within 15 days to request more time. Comments may be emailed to me at aana.gambleOncdenr.gov or mailed to my attention at NC DEMLR, Stormwater Permitting Program, 1612 Mail Service Center, Raleigh, NC 27699-1612. If you have any questions, please email me or call me at (919) 707-3648. Sincerely, Aana Gamble DEMLR Stormwater Division Attachment: Draft Permit NCS000151 cc: Savannah Carroll, Arauco USA LLC Moncure Facility, Savannah. Carroll Parauco.com Jeff McMillian, Arauco USA LLC Moncure Facility, Jef£McMillianParauco.com Thad Valentine, DEMLR Raleigh Regional Office, thad.valentinePncdenr.gov NcrthCir'AroOlpbrtmrM-of FrMt nM"U1Qrf * F DtdsWD(Energy.Mneraland Land Rlaourcra 512North Salisbury Street I t612MaYServlceCenter I BakgggLNorth Carollna27694-r612 9L9.707.9200