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HomeMy WebLinkAboutNC0063029_Draft Fact Sheet_20230605 Fact Sheet NPDES Permit No. NC0063029 Permit Writer/Email Contact Sergei Chernikov,Ph.D.,sergei.chernikov@deq.nc.gov Date: May 24,2023 Division/Branch:NC Division of Water Resources/NPDES Complex Permitting Fact Sheet Template: Version 09Jan2017 Permitting Action: ❑ Renewal O Renewal with Expansion ❑ New Discharge ® Modification(Fact Sheet should be tailored to mod request) Note: A complete application should include the following: • For New Dischargers,EPA Form 2A or 2D requirements,Engineering Alternatives Analysis, Fee • For Existing Dischargers(POTW),EPA Form 2A,3 effluent pollutant scans,4 2°a species WET tests. • For Existing Dischargers(Non-POTW),EPA Form 2C with correct analytical requirements based on industry category. Complete applicable sections below. If not applicable, enter NA. 1. Basic Facility Information Facility Information Applicant/Facility Name: Commanding General/Camp Lejeune Advanced WWTP Applicant Address: 12 Post lane,Rm 244,Camp Lejeune,NC 28547 Facility Address: Building FC440,Gonzalez Boulevard,Marine Camp Base,Camp Lejeune Permitted Flow: 15.0 MGD Facility Type/Waste: Major Facility Facility Class: Class IV Treatment Units: Bar Screen,Grit Removal,Primary Clarifiers,Secondary Clarifiers,Sand Filters, Post Aeration Basin, Ultraviolet (UV) Disinfection system, Rotary Drum Sludge Thickeners, Aerobic Digester, Sludge Holding Tank,and Sludge Drying Beds. PFAS treatment: Iron Pretreatment, Granular Activated Carbon (GAC), and Ion Exchange. Pretreatment Program(Y/N) No County: Onslow Region Wilmington Page 1 of 4 Briefly describe the proposed permitting action and facility background:United States Marine Corps Base, Camp Lejeune(MCB CAMLEJ),herein called MCP CAMLEJ or Permittee,applied for an NPDES permit Major Modification for Camp Lejeune Advanced Wastewater Treatment Plant(WWTP).The modification is necessary to incorporate a waste stream from the mobile PFAS treatment system. The system will be moved around the site to treat aqueous PFAS impacted construction or operational wastes, including groundwater and rinsate from cleaning contaminated tanks/systems. The wastewater will be pre-treated for iron, as necessary, followed by GAC, and Ion Exchange treatment for PFAS.The wastewater will be run through the system until PFAS are below EPA health advisory levels (PFOA + PFOS < 70.0 ng/L). The treatment system will operate in batches and will utilize frac tanks to allow effluent sampling prior to discharge. The proposed flow rate is 10 gpm. The effluent from the PFAS treatment system shall be discharged via Internal Outfall 002 to Outfall 001. Camp Lejeune Advanced WWTP is a state-of-the-art facility that began operation in 1998 and consolidated seven discharges.The facility serves Marine Corps Base Camp Lejeune and Marine Corps Air Station New River with a total population of 148,000. The facility's average discharge for the period of January 2014 through June 2019 was 4.4 MGD which accounts for—29%of the plant's capacity. MCP CAMLEJ receives waste streams from Onslow Water and Sewer Authority (ONWASA), Naval Medical Center(NMC),Oil Water Separators(OWS), Municipal Solid Waste Landfill Facility(MSWLF) leachate, Solid Waste Compost Facility (SWCF) runoff, four Water Treatment plants (WTPs) filter backwash and seven remedial treatment plants. The remediation systems include: Installation Restoration (IR) Site 78 North, IR Site 78 South, AS-4141, HPFF South East Compound, New River PPV, TC-341 Pipeline and Rapid Refueler (attached the description of each site). RCRA Sites AS-4141 and Rapid Refueler have been shut down since the discovery of Per-and Polyfluoroalkyl Substances(PFAS) in their effluent.No other sources of PFAS have been identified flowing to the facility. According to 2007 White Oak River Basin Plan,Nutrient enrichment has been a significant problem in the estuarine portions of the New River, and periodic elevated fecal coliform bacteria levels also appear to be a recurring problem in this subbasin(03-05-02). High nutrient levels were being discharged by the City of Jacksonville as well as Camp Lejeune. In 1998, Jacksonville removed its discharge from the upper New River estuary and Camp Lejeune consolidated its seven discharges into one tertiary treatment facility.These discharges were considered a major source of nutrients into the upper estuarine portions of the New River. As a result,a reduction of nitrogen and phosphorous, 57 and 71 percent respectively, has occurred. Page 2 of 4 2. Receiving Waterbody Information: Receiving Waterbody Information Outfalls/Receiving Stream(s): Outfall 001 —New River, Internal Outfall 002 (PEAS treatment system). Stream Segment: I9-(15.5) Stream Classification: SC;NSW Drainage Area(mi2): 12a Summer 7Q10 (cfs) Tidal Winter 7Q10(cfs): Tidal 30Q2 (cfs): Tidal Average Flow(cfs): Tidal IWC (%effluent): 5% (modeled)63029 303(d) listed/parameter: No Subject to TMDL/parameter: Yes- Statewide Mercury TMDL implementation. Subbasin/HUC: 03-05-02; 03020302 USGS Topo Quad: Camp Lejeune 129 NE a: Based on Stream-stats(streamstats.usgs.gov) 3.Summary of Proposed Permitting Actions: A. Table. Current Permit Conditions and Proposed Changes(Outfall 002). Parameter Current Permit Proposed Change Basis for Condition/Change 40 Applicable None Add monitoring and EPA's PFAS Guidance(Ou PFAS compounds reporting PFOA+PFOS None Add limits: EPA health advisory PFOA+PFOS<70.0 ng/L(MA and WA) MGD—Million gallons per day,MA-Monthly Average,WA—Weekly Average,DM—Daily Max Page 3 of 4 3. Public Notice Schedule: Permit to Public Notice: 06/13/2023 Per 15A NCAC 2H .0109& .0111, The Division will receive comments for a period of 30 days following the publication date of the public notice.Any request for a public hearing shall be submitted to the Director within the 30 days comment period indicating the interest of the party filing such request and the reasons why a hearing is warranted. 4. NPDES Division Contact: If you have questions regarding any of the above information or on the attached permit, please contact Sergei Chernikov at(919) 707 -3606 or via email at sergei.chernikov@deq.nc.gov. Page 4 of 4