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HomeMy WebLinkAboutNCG030326_Tier Relief Approval_20190923ROY COOPER Governer MICHAEL S. REGAN Srcretary S. DANIEL SMITH Daet tar W&WIARCO Steel Attn: Roger Breeden 341 Corbett Road Nashville, NC 27856 NORTH CAROLINA Environmental Quality September 23, 2019 SUBJECT: NPDES Stormwater Permit: Request for Regulatory Relief W&WIAFCO Steel General Permit No: NCG030000; COC No: NCG030326 Nash County Mr. Breeden: In response to your request for Regulatory Relief, NCDENR-Land Quality Section staff reviewed provided sample reports, site maps and discussed site characteristics with Tyler Miles and Derr Leonhardt the environmental consultants with Leonhardt Environmental & Roger Breeden with W&WIAFCO Steel. Monthly monitoring has been triggered by numerous exceedances of the Zinc benchmarks at your facility. Please keep in mind that benchmark exceedances are NOT limit violations or violations of permit conditions; however, you are obligated to follow the tiered response actions outlined in your permit. W&WIAFCO Steel has been following the tiered response actions for many consecutive years and therefore is in compliance with the permit. Based on the number of additional samples taken around the site, both soil and water, and the high level of Zinc in all the samples regardless of whether the activities at your facility drains in that direction, we are granting regulatory relief in the form of a collapsed Tier 2 — Tier 3 response. Upon receipt of this letter, W&WIAFCO Steel may resume the permit specified semiannual analytical monitoring for the remainder of your current permit. Your current permit is set to expire on May 31, 2021. This decision only applies to the Zinc benchmarks. A benchmark exceedance of any other parameter listed in your permit will trigger tiered response actions as described in the general permit. Nor th Carolina L1cp tru;tcnl of Envirortnttrnal Quldity I Division of Energy. \lirteral tend Land Resuurc'es 512 North Sali bury Sl iwi 102 NUI Scr vice Center ; Ralciyh, Nor tlt Curoliner L'it3c 4 1u12 Ur;�t�: rnl cf[mi c�mm_Y L1ul.ly 91910711200 You must notify this office in writing, within five business days, if you become aware of any significant source of Zinc at your facility that has the potential to be exposed to stormwater. The relief granted in this letter is contingent upon the current industrial practices at W&WIAFCO Steel. If industrial practices change and Zinc does become a significant stormwater exposure risk then this office reserves the right to withdraw this decision and reinstate the permit specified tiered response or other actions that may be warranted by the new set of circumstances. Please retain and append this letter to your Stormwater Pollution Prevention Plan (SPPP) or permit. If you have any questions or comments concerning this letter, please contact Thad Valentine or me at (919) 791-4200. Sincerely, >� William H. Denton, IV, PE Regional Engineer-RRO