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HomeMy WebLinkAboutNCG060379_Waiver Response_20240228 ROY COOPER Governor ELISABETH BISER Secretary lit t .� AL WILLIAM E.TOBY VINSON,JR. AM Interim Director NORTH CAROL1NA Environmental Quality February 28, 2024 Pilgrims Pride Corporation—Staley Feed Mill Attention: Tina Pedley, Environmental Manager 484 Zimmerman Road Sanford, NC 27330 RE: Waiver Request Pilgrims Pride Corporation—Staley Feed Mill General Permit No. NCG060000 Certificate of Coverage NCG060379 Sanford,NC Dear Tina Pedley: This Office is in receipt of your request for a variance from the 72-hour storm interval outlined in Section E-3 of NCG060000. The referenced section is quoted below for reference: E-3. Methodology for Collecting Samples (a) Outfall monitoring efforts shall begin with the first measurable storm event in the monitoring period that meets all the following conditions: i. Occurs at least 72 hours after the previous measurable storm event unless E-3(b) applies, ii. Occurs during the facility's normal operating hours, iii. Does not coincide with adverse weather conditions, and iv. Is characteristic of the volume and nature of the permitted discharge. (b) The 72-hour storm interval may not apply if: i. The permittee is able to document that a shorter interval is representative for local storm events during the sampling period, and ii. The permittee obtains approval from the Division's Regional Office. iii. After authorization by the Division's Regional Office, a written approval letter must be kept on site in the permittee's SWPPP. (c) Grab samples shall be collected within the first 30 minutes of discharge from an outfall and continue until all outfalls that are discharging have been sampled. (d) Outfalls that are not sampled during the first measurable storm event in the monitoring period shall be sampled during the next measurable storm event in the monitoring period until a sample has been collected. (e) If, during the entire monitoring period, there is no discharge from an outfall during any measurable storm event then the permittee shall: i. Report "No Discharge" in the DMR, ii. Note "No Discharge" in the SWPPP, and iii. Submit the DMR within 30 days after the end of the monitoring period. 0 Lack of a discharge from an outfall for the monitoring period shall not constitute failure to monitor as long as the above permit conditions are met. (g) If the sampled storm event coincides with a known non-stormwater discharge that is deemed permitted under 15A NCAC 02 .0106, then this shall be noted on the DMR. North Carolina Department of Environmental Quality I Division of Energy,Mineral,and Land Resources Winston-Salem Regional Office 1 450 West Hanes Mill Road,Suite 300 1 Winston-Salem,North Carolina 27105 336-776-9800 Pilgrims Pride Corporation— Staley Feed Mill February 28, 2024 Page 2 of 2 Your request to reduce the time after a measurable storm event from 72 hours to 36 hours has been considered. We must advise you that every attempt should be made to grab samples during the first qualifying event at the beginning of the applicable monitoring period. We cannot agree to a 36-hour storm interval, but we will accept samples when it has been at least 48 hours since the previous measurable storm event. If you have any questions, please contact me at tam.era.eplinr Weq.nc.gov or (336) 776-9654. Sincerely, Tamera Epliri;'PE Regional Engineer Land Quality Section c: Tina.Pedley�a pilgrims.com Denilis.Sumperra;jbssa.corn. Laserfiche