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HomeMy WebLinkAboutNC0023191_Draft_Fact Sheet_20231128NCDEQ / DWR / NPDES EXPEDITED FACT SHEET - NPDES PERMIT RENEWAL NPDES Permit NCO023191 Caroline Robinson / Compliance & Expedited Permitting Unit / caroline.robinsongdeq.nc. og_v / Nov 2023 FACILITY INFORMATION Owner/Facility Name David Lynn Millsaps / Seven Cedars Mobile Home Park WWTP (Monica Millsaps, Property Manager) Applicant Address PO Box 1143, Statesville, NC 28687 Facility Physical Address/Mailing Address End of Village Drive, Statesville, NC 28677 / PO Box 1143, Statesville, NC 28687 Permitted Flow (MGD) 0.01 MGD Type of Waste 100% Domestic, < 1 MGD Facility Class WW-2 County Iredell Permit Status Renewal Regional Office MRO STREAM CHARACTERISTICS Receiving Stream Third Creek Stream Classification C Stream Segment 12-108-20-4 Outfall Lat. 350 43' 55" N 7Q10 - Summer (cfs) 122 Outfall Long. 800 48' 05" W 7Q10 - Winter (cfs) 21 Drainage basin Yadkin -Pee Dee River Basin 30Q2 (cfs) 25.8 Subbasin 03-07-06 Average Flow (cfs) 69.4 HUC 030401020303 IWC (%) 0.13% (summer) / 0.07% (winter) 303(d) List No BASIC INFO FOR EXPEDITED PERMIT RENEWAL Does permit need Daily Max NH3 limits? No Does permit need TRC limits/footnote? No — Already present in permit. Does permit have toxicity testing? No — not a complex wastestream Does permit have any Special Conditions? Yes — Nutrient Reopener for High Rock Lake and a Disinfection Condition Does permit have instream monitoring? No New expiration date: March 31, 2029 FACILITY SUMMARY Seven Cedars Mobile Home Park WWTP operates a 100% domestic wastewater treatment plant for an estimated 74 residents. The Ridge Haven WWTP is a minor facility (flow < 1 MGD) with a design capacity and permitted wastewater discharge of 0.01 MGD. The NPDES permit was originally issued in August 1980. This facility utilizes the following treatment components: • Bar screen • Aeration basin with diffused air • Clarifier with sludge return lines • V-notch weir • Gravel filtration tanks • Aerated sludge holding tanks Fact Sheet for Permit Renewal Oct 2023 - NPDES Permit NCO023191 - Page 1 RENEWAL SUMMARY This renewal contains the following changes: • Electronic data submission requirements have been updated in Part L A. (4). • Removed `Chlorine contact tank with tablet chlorinator' from the wastewater treatment plant components list on the Supplement to Permit Cover Sheet based on the most recent inspection in September 2022. COMPLIANCE HISTORY Seven Cedars Mobile Home Park WWTP has had two enforcements in 2022 for total suspended solids limit violations and two enforcements in 2023 for total suspended solids limit violations and a BOD limit violation since the permit was issued in May 2020. The facility has been issued six proceed to enforcement cases for BOD and Total Suspended Solids limit violations since the permit was issued in May 2020. Most recent inspection (September 2022) showed the facility to be in compliance. COMMENTS ON DRAFT PERMIT Jeffrey Talbott (Operator Certification Group) noted that NCO023191 is classified as a WW-II facility in BIMS, with several backup ORC's active and in good standing, but with no lead ORC listed. Per 15A NCAC 08G .0201— Responsibility of System Owners to Designate Certified Operators: Owners of classified water pollution control systems shall designate operators certified by the Commission of the same type and grade as the classification for the system and for each classification shall: 1) designate one ORC who possesses a valid certificate of the type and grade at least equivalent to the type and grade of the system; 2) designate one or more Back-up ORC(s) who possesses a valid certificate of the type of the system and no more than one grade less than the grade of the system, with the exception of no Back-up ORC is required for systems whose minimum visitation requirements are twice per year Our forms for ORC — Operator Designation & Resignation can be found at the following link: https://www.deg .nc. gov/about/divisions/water-resource s/operator-certification/wastewater- operator/downloads-links Fact Sheet for Permit Renewal Oct 2023 - NPDES Permit NCO023191 - Page 2