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Home My WebLink AboutNC0090247_Permit (Correction)_20240521ROY COOPER Governor ELIZABETH S. BISER Secretary RICHAM E. ROGERS, JR. Director Henderson County ATTN: Marcus Jones 1 Historic Courthouse Square, Ste 6 Hendersonville, NC 28792 Dear Permittee: \f QaAi'i Na j NORTH CAROLINA Environmental Quality May 21, 2024 Subject: Change -Page to Correct Error NPDES Permit NCO090247 Clear Creek WWTP Grade II Biological WPCS Henderson County The Division of Water Resources (the Division) became aware of some errors in your recently issued permit (May 6, 2024), including the following: • The hydrological unit in the Supplement to Permit Cover Sheet is incorrect. The correct hydrological unit has been updated to 04-03-02. • Sampling for BOD5 and TSS in Section A.(L) should also be conducted at influent in accordance with 40 CFR § 133.102 Secondary Treatment Standards. Influent sampling has been added for both parameters. Accordingly, we hereby forward the modified permit pages to amend the above errors. Please insert these change pages into your existing permit and discard the old pages. We regret any inconvenience this causes your organization. Please note that this permit is not transferable except after notice to the Division. The Division may require modification or revocation and reissuance of the permit. This permit does not affect the legal requirements to obtain other permits which may be required by the Division of Water Resources or any other Federal, State, or Local governmental permits that may be required. If you have questions, or if we can be of further service, please contact Siying Chen at siying.chen@deq.nc.gov or call (919) 707-3619. Respectfully, Richard E. Rogers, Jr. Director, Division of Water Resources D E Q ,fJ North Carolina Department of Environmental Quality I Division of Water Resources 512 North Salisbury Street 1 1617 Mail Service Center I Raleigh, North Carolina 27699-1617 NORTH CAROLINA (J1(�.'�O'�.(�OQO Department of Emlmnmenfal Duali� Enclosure: NPDES Permit NCO090247 (Corrected Pages) cc: NPDES Files (Laserfiche) NC DEQ DWR — Julie Gryzb Uulie.grzyb@deq.nc.gov] NC DEQ DWR Water Quality Regional Operations — John Hennessy Uohn.hennessy@deq.nc.gov] NC DEQ DWR NPDES Permitting Branch — Mike Montebello [Michael.Montebello@deq.nc.gov] NC DEQ Winston-Salem Regional Office — Lon Snider [lon.snider@deq.nc.gov] NC DEQ Asheville Regional Office — Andrew Moore [andrew.w.moore@deq.nc.gov] NC DEQ Asheville Regional Office — Daniel Boss [daniel.boss@deq.nc.gov] NC DEQ Aquatic Toxicology Unit — Cindy Moore [cindy.a.moore@deq.nc.gov] NC DEQ DWR Public Information Office - Laura Oleniacz [laura.oleniacz@deq.nc.gov] CDM Smith — Anish Luthra [luthraa@cdmsmith.com] CDM Smith — Jonathan Lapsley [lapsleyjs@cdmsmith.com] WGLA Engineering, PLLC — William R. Buie [wbuie@wgla.com] D E Q�� North Carolina Department of Environmental Quality I Division of Water Resources 512 North Salisbury Street 1 1617 Mail Service Center I Raleigh, North Carolina 27699-1617 NORTH CAROLINA 919.707.9000 Depanmem of Envlmnmenml Dual NPDES Permit NCO090247 SUPPLEMENT TO PERMIT COVER SHEET All previous NPDES Permits issued to this facility, whether for operation or discharge are hereby revoked. As of this permit issuance, any previously issued permit bearing this number is no longer effective. Therefore, the exclusive authority to operate and discharge from this facility arises under the permit conditions, requirements, terms, and provisions included herein. Henderson County is hereby authorized to: Upon receipt of an Authorization to Construct permit from the Division, construct wastewater treatment facility not to exceed 0.2 MGD with treatment facilities consisting of, but not limited to: • Influent pump station • Bar screens • Flow equalization tank • Two (2) activated sludge trains • Two (2) secondary clarification tanks • Sludge holding tank • Chlorine contact basin • Tertiary disc filters this treatment facility will be located near Fruitland Road (County parcel identification number (PIN) 9680383718, 9680384200, 9680389475) in Hendersonville, Henderson County, and 2. After submitting an Engineer's Certification, discharge wastewater from said treatment works via Outfall 001, as specified on the attached map, into Clear Creek [Stream Index 6-55-11-(5)], a waterbody currently classified C waters within hydrological unit 04-03-02 [HUC: 060101050302] of the French Broad River Basin. Effective July 1, 2024 Page 2 of 8 Technical Correction: May 21, 2024 NPDES Permit NCO090247 A.(1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS [0.2 MGD] [15A NCAC 02B .0400 et seq., 15A NCACO2B .0500 et seq.] Grade WW-2 Water Pollution Control System [15A NCAC 08G.03021 During the period beginning on the effective date of the permit and lasting until permit expiration, the permittee is authorized to discharge from Outfall 001. Such discharges shall be limited and monitored' by the permittee as specified below: EFFLUENT LIMITS MONITORING REQUIREMENTS PARAMETER Monthly Weekly Daily Measurement Sample Sample Parameter Code Average Average Maximum Frequency Type Location Flow (MGD) 50050 0.2 MGD Continuous Recording Effluent Total Residual Chlorine (TRC) 2 50060 28 fag/L 2/Week Grab Effluent (pg/L) BOD, 5-day, (20°C) 3 (mg/L) C0310 10.0 mg/L 15.0 mg/L Weekly Composite Influent & (April 1 — October 31) Effluent BOD, 5-day, (20°C) 3 (mg/L) C0310 20.0 mg/L 30.0 mg/L Weekly Composite Influent & (November 1 — March 31) Effluent Ammonia (NH3 as N) (mg/L) C0610 2.0 mg/L 6.0 mg/L Weekly Composite Effluent (April 1 — October 31) Ammonia (NH3 as N) (mg/L) C0610 4.0 mg/L 12.0 mg/L Weekly Composite Effluent (November 1 — March 31) Dissolved Oxygen (mg/L) 00300 Daily Average > 5.0 mg/L Weekly Grab Effluent Total Suspended Solids (TSS) 3 C0530 30.0 mg/L 45.0 mg/L Weekly Composite Influent & (mg/L) Effluent pH (s.u.) 00400 Not < 6.0 or > 9.0 s. u. Weekly Grab Effluent Fecal Coliform (geometric mean) 31616 200 / 100 mL 400 / 100 mL Weekly Grab Effluent Chronic Toxicity Pass/Fail 4 TGP3B Quarterly Composite Effluent Total Nitrogen (TN) 5 (mg/L) C0600 Monitor & Report Semi-annually Composite Effluent Total Phosphorus (TP) 6 (mg/L) C0665 Monitor & Report Semi-annually Composite Effluent Footnotes: 1. The Permittee shall submit discharge Monitoring Reports electronically using the Division's eDMR submittal system [See Section A. (5.)]. 2. TRC is only applicable if chlorine or a chlorine derivative is used for disinfection. The Permittee shall report all effluent TRC values reported by a NC -certified laboratory [including field certified]. Effluent values below 50 µg/L will be treated as zero for compliance purposes. 3. Monthly average effluent BOD5 and TSS concentrations shall not exceed 15% of respective influent value (i.e., compliance requires 85% removal). 4. Chronic Toxicity (Ceriodaphnia dubia) P/F at 2% with testing in March, June, September, and December. [See Section A.(2.).] 5. Total Nitrogen shall be the sum of total Kjeldahl nitrogen, nitrate nitrogen, and nitrite nitrogen expressed as "N" in milligrams per liter (mg/L). 6. Total Phosphorus shall include all orthophosphates and condensed phosphates, both dissolved and particulate, organic and inorganic, expressed as "P" in milligrams per liter (mg/L). There shall be no discharge of floating solids or foam visible in other than trace amounts. Page 3 of 8 Effective July 1, 2024 Technical Correction: May 21, 2024