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Home My WebLink AboutNCG030729_Tier2 Notification_20231211 From: Eolin,Tamera To: Joseph Carta Cc: Turney,Kimberly;Vikara.Ashley J Subject: RE:[External]Notice of Stormwater Benchmark Exceedance Date: Sunday,March 10,2024 8:01:00 PM Attachments: imaae003.onna imaae004.ono image005.ona Hello,and thank you for your email. I apologize for the delayed response due to our staffing situation. I have copied technical guidance available from our website with the applicable section highlighted: https://www.deq.nc.gov/a bout/divisions/energy-mineral-a nd-land-resources/stormwater/stormwater- program/npdes-industrial-program/technical-guidance#Sampling If a parameter exceeds its benchmark,all parameters at that outfall will go into Tier 1 status. If the same parameter exceeds its benchmark twice in a row,all parameters at that outfall will go into Tier 2 status. If the same parameter exceeds its benchmark four times in any five year period,all parameters at that outfall will go into Tier 3 status. Below is a summary of this system, but a more in-depth explanation can be found in the applicable permit. Tier 1 Tier 2 Tier 3 A parameter A parameter A parameter exceeds its How does an outfall exceeds its get into this Tier? exceeds its benchmarks benchmark 4 times within a benchmark five year period twice in row 3 consecutive 3 consecutive 3 consecutive samples are How does an outfall samples are under samples are under benchmark or if the get out of this Tier? benchmark under local Regional Office waives benchmark How often do Quarterly or Semi- parameters need to be annually, Monthly Monthly sampled while in this depending on the Tier? permit. Therefore, all parameters will need to be sampled for the outfalls in question. Please feel free to contact me at 336-776-9654 with any questions. Regards, Tamera Eplin,PE Regional Engineer Land Quality Section,Winston-Salem Regional Office Division of Energy, Mineral,and Land Resources North Carolina Department of Environmental Quality (336)776-9800 office (336)776-9654 direct tamera.eplin(@deq.nc.gov(New email address) 450 West Hanes Mill Road.Suite 300 Winston-Salem,NC 27105-7407 NORTH CAROLINA Department of Environmental Quality Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties. From:Joseph Carta<joseph.carta@powersecure.com> Sent:Wednesday,January 3,2024 3:48 PM To: Kay,Lily C<lily.kay@deq.nc.gov>;Turney,Kimberly<kimberly.turney@deq.nc.gov> Cc:Graznak,Jenny<jenny.graznak@deq.nc.gov>;Eplin,Tamera<tamera.eplin@deq.nc.gov> Subject:RE: [External] Notice of Stormwater Benchmark Exceedance CAUTION:External email.Do not click links or open attachments unless verified.Report suspicious emails with the Report Message button located on your Outlook menu bar on the Home tab. Good afternoon and Happy New Year! I wanted to follow up with you on the Tier 2 monthly monitoring requirement. We have conducted an inspection,identified some actions and are in the process of implementing those actions. As we prepare to obtain the monthly samples,the question we have is: Do we need to sample for all stormwater parameters or just the ones that were above the benchmark for two consecutive sampling events? Any feedback you can provide would be greatly appreciated. Thank you, Joe Carta Facility Environmental Compliance Program Manager PowerSecure 4068 Stirrup Creek Dr. Durham,NC 27703 919.280.2157 Cell From:Joseph Carta Sent:Tuesday,December 12,2023 4:13 PM To: Kay,Lily C<Iilv.kay(@deq.nc.gov>;Turney, Kimberly<kimberly.turn y(@deq.nc.gov> Cc:Graznak,Jenny<jenny_graznak( deq.nc.gov>;Eplin,Tamera<tamera.eplin(@deq.nc.gov> Subject:RE: [External] Notice of Stormwater Benchmark Exceedance Hi Lily— Thank you for the staffing update and the stormwater sampling advice,it is helpful. We did walk the site yesterday morning to identify any potential areas to collect spot samples. Hopefully we get another rain event soon and can start getting those samples taken. I do have a question for you or Kim regarding the requirements of the Tier 2 Response. For the monthly monitoring,do we need to test for all parameters of the stormwater program or only the parameters that have exceeded the benchmark(in our case,copper and zinc)? Thank you, Joe Carta I Facility Environmental Compliance Program Manager .Sa PowerSecure 4068 Stirrup Creek Dr. Durham,NC 27703 919.280.2157 Cell From:Kay,Lily C<liIy.kay @deq.nc.gov> Sent:Monday,December 11,2023 4:49 PM To:Joseph Carta<ioseph.carta(@powersecure.com>;Turney,Kimberly<kimberly.turney(@c1eq.nc.gov> Cc:Graznak,Jenny<ienny_graznak(a deq.nc.gov>;Eplin,Tamera<tamera.eplin(@deq.nc.gov> Subject:RE: [External] Notice of Stormwater Benchmark Exceedance Hello Mr.Carta, I have transferred back to the Mooresville region and Kim Turney will be your new point of contact in the Winston-Salem office. If you haven't started additional sampling to figure out where the exceedances are originating,now would be a good time. You might also want to get a background rainfall sample by putting a clean plastic bucket on site,take a roof drain sample as many roofs have galvanized metal,and a sample of any water coming onto your facility from another. These types of samples will help rule out some sources that do not reflect your industrial activities. You may also want to take samples in different production or storage areas to track it down. I hope that helps. Thanks, Lily -44 z Environmental Senior Specialist Land Quality Division Division of Energy, Mineral,and Land Resources North Carolina Department of Environmental Quality Phone: (704)235-2137 Email: Lily.Kay @ncdenr.gov Physical and Mailing Address: 610 E.Center Ave Mooresville, NC 28115 e:!5f-D, EQ Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties From:Joseph Carta<ioseph.carta ftowersecure.com> Sent:Monday,December 11,2023 3:53 PM To:Kay,Lily C<lilv.kayna deq.nc.eov> Cc:Graznak,Jenny<iennX,graznakna deq.nc.Eov>;Eplin,Tamera<tamera.eplin(@deq.nc.gov> Subject:[External] Notice of Stormwater Benchmark Exceedance CAUTION:External email.Do not click links or open attachments unless verified.Report suspicious emails with the Report Message button located on your Outlook menu bar on the Home tab. Good afternoon DEMLR supervisor and staff- Please let this email serve as notice for an exceedance of stormwater benchmark at the PowerSecure Manufacturing,Inc. facility(PowerFab)located at 1410 Coltrane Mill Road,Randleman,INC. The site is authorized to discharge stormwater under North Carolina General Permit No. NCG03000(Certificate of Coverage No. NCG030729),which requires quarterly analytical monitoring. 4th quarter stormwater samples were taken on November 21,2023,from the two outfalls on site. The results for Outfall 001 exceeded the benchmark for copper and zinc. (Outfall 2 was below all benchmark limits) Outfall Copper(mg/0 Zinc(mg/L) 1 0.093 0.41 Due to these exceedances,a Tier 2 response has been initiated for these parameters at Outfall 1. Initial exceedance occurred during 2nd quarter monitoring reported to NCDEQ on July 10,2023. Outfall 2 remains in Tier 1 program. Thank you, Joe Carta I Facility Environmental Compliance Program Manager PowerSecure 4068 Stirrup Creek Dr. Durham,NC 27703 919.280.2157 Cell Email correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties by an authorized state official.