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Home My WebLink AboutNC0085588_Renewal (Application)_20200303ROY COOPER Govemor MICHAEL S. REGAN Secretary S. DANIEL SMITH Director City of Lincolnton Attn: Robert Pearson, Water Resources Dir. PO Box 617 Lincolnton, NC 28093 Subject: Permit Renewal Application No. NCO085588 Lincolnton WTP Lincoln County Dear Applicant: NORTH CAROLINA Environmental Quality March 05, 2020 The Water Quality Permitting Section acknowledges the March 3, 2020 receipt of your permit renewal application and supporting documentation. Your application will be assigned to a permit writer within the Section's NPDES WW permitting branch. Per G.S. 150E-3 your current permit does not expire until permit decision on the application is made. Continuation of the current permit is contingent on timely and sufficient application for renewal of the current permit. The permit writer will contact you if additional information is required to complete your permit renewal. Please respond in a timely manner to requests for additional information necessary to allow a complete review of the application and renewal of the permit. Information regarding the status of your renewal application can be found online using the Department of Environmental Quality's Environmental Application Tracker at: https:lldeg. nc.ciov/permits-regulations/permit-quidance/environmental-application-tracker If you have any additional questions about the permit, please contact the primary reviewer of the application using the links available within the Application Tracker. Sincerely, Wren Tedford Administrative Assistant Water Quality Permitting Section cc: Central Files w/application ec: WQPS Laserfiche File w/application North Caro'raDepartmePtofEftvronrr.erta'Qca`ty I Dvs.onofWater Resouroes Moo resv' a Regvna' Office 1 610 fast Center Avenue, Sa3e 3011 Moo resr *, North Caro: na 28115 ��•�� 7r�nr.�z_aaaa NPDES PERMIT APPLICATION - SHORT FORM C - WTP For discharges associated with water treatment plants Mail the complete application to: N. C. DENR / Division of Water Resources / NPDES Unit 1617 Mail Service Center, Raleigh, NC 27699-1617 NPDES Permit Number INCO085588 If you are completing this form in computer use the TAB key or the up - down arrows to move from one field to the next. To check the boxes, click your mouse on top of the box. Otherwise, please print or type. 1. Contact Information: Owner Name Facility Name Mailing Address City State / Zip Code Telephone Number Fax Number e-mail Address City of Lincolnton Lincolnton Water Treatment Plant 1338 Reepsville Road Lincolnton MAR 0 3 2020 NC 28092 KDEQIDWRINME$ (704) 736-8940 (704) 736-8959 2. Location of facility producing discharge: Check here if same as above Street Address or State Road City State / Zip Code County 3. Operator Information: Name of the firm, consultant or other entity that operates the facility. (Note that this is not referring to the Operator in Responsible Charge or ORQ Name City of Lincolnton—Robert Pearson Mailing Address 1338 Reepsville Road City Lincolnton State / Zip Code NC 28092 Telephone Number (704) 736-8970 Fax Number (704) 736-8979 4. Ownership Status: Federal ❑ State ❑ Private ❑ Page 1 of 4 Version 3/2014 NPDES PERMIT APPLICATION - SHORT FORM C - WTP For discharges associated with water treatment plants 5. Type of treatment plant: ® Conventional (Includes coagulation, flocculation, and sedimentation, usually followed by filtration and disinfection) ❑ Ion Exchange (Sodium Cycle Cationic ion exchange) ❑ Green Sand Filter (No sodium recharge) ❑ Membrane Technology (RO, nanofiltration) Check here if the treatment process also uses a water softener ❑ 6. Description of source water(s) (i.e. groundwater, surface water) Surface Water 7. Describe the treatment process(es) for the raw water: Mixing, Flocculation, Sedimentation, Filtration, Sludge Dewatering 8. Describe the wastewater and the treatment process(es) for wastewater generated by the facility: Sludge is generated by the pretreatment and sedimentation processes. The sludge for pretreatment and sedimentation processes is automatically collected and discharged to a sludge holding lagoon. The filter backwash is discharged to the sludge holding lagoon, The combined sludge and backwash flows are gravity thickened. The thickened sludge is then pumped to a sludge dewatering process. The dewatering process uses a centrifuge to dewater the sludge. The overflow from the dewatering process is returned to the lagoon. The lagoon is decanted using a floating decanter. The overflow is dechlorinated and discharged to the South Fork Catawba River. 9. Number of separate discharge points: 1 Outfall Identification number(s) 001 10. Frequency of discharge: Continuous ❑ Intermittent If intermittent: Days per week discharge occurs: 7 days Duration: 9.00 11. Plant design potable flow rate 12.0 MGD Backwash or reject flow 0.350 MGD 12. Name of receiving stream(s) (Provide a map showing the exact location of each outfall, including latitude and longitude South Fork Catawba River 13. Please list all water treatment additives, including cleaning chemicals or disinfection treatments that have the potential to be discharged. Page 2 of 4 Version 3/2014 NPDES PERMIT APPLICATION - SHORT FORM C - WTP For discharges associated with water treatment plants Alum / aluminum sulfate Yes X No Iron sulfate / ferrous sulfate Yes No X Fluoride Yes X No Ammonia nitrogen / Chloramines Yes No X Zinc -orthophosphate or sweetwater CP1236 Yes X No List any other additives below: Caustic Soda, Polymers, Chlorine, Activated Carbon, Sodium Bi-sulfite 14. Is this facility located on Indian country? (check one) Yes ❑ No 15. Additional Information: v Provide a schematic of flow through the facility, include flow volumes at all points in the water treatment process. The plan should show the point[s] of addition for chemicals and all discharges routed to an outfall [including stormwater]. Solids Handling Plan 16. NEW Applicants Information needed in addition to items 1-15: New applicants are strongly recommended to contact a permit coordinator with the NCDENR Customer Service Center. Was the Customer Service Center contacted? ❑ Yes ❑ No Analyses of source water collected Engineering Alternative Analysis Discharges from Ion Exchange and Reverse Osmosis plants shall be evaluated using a water quality model. 17. Applicant Certification I certify that I am familiar with the information contained in the application and that to the best of my knowledge and belief such information is true, complete, and accurate. Robert W Pearson Water Resources Director Prir l name of Persaq Signing Title of Applicant Date RA North Carolina General Statute 143-215.6 (b)(2) provides that: Any person who knowingly makes any false statement representation, or certification in any application, record, report, plan, or other document files or required to be maintained under Article 21 or regulations of the Environmental Management Commission implementing that Article, or who falsifies, tampers with, or knowingly renders inaccurate any recording or monitoring device or method required to be operated or maintained under Article 21 or regulations of the Environmental Management Commission implementing that Article, shall be guilty of a misdemeanor punishable by a fine not to exceed $25,000, or by Page 3 of 4 Version 3/2014 NPDES PERMIT APPLICATION - SHORT FORM C - WTP For discharges associated with water treatment plants imprisonment not to exceed six months, or by both. (18 U.S.C. Section 1001 provides a punishment by a fine of not more than $25,000 or imprisonment not more than 5 years, or both, for a similar offense.) Page 4 of 4 Version 3/2014 Latitude: 35' 28'52" NPDES PERMIT NCO085588 Longitude 81' 16-59" City of Lincolnton Quad '� F13NE WTP C�29" easeStream Class: WS-IV Subbasin: 30835 Architects — Engineers Receiving Stream; South Fork Catawba River Pease Commission No. 2010004.00 NPDES Permit NCO085588 City of Lincolnton WTP Lincoln County Description of Sludge Management Plan The water treatment plant utilizes the following principal treatment process: • Raw water pre -settling basin • Actiflow raw water pretreatment (ballasted flocculation) • Conventional Flocculation • Conventional Sedimentation • Conventional Filtration Sludge is generated by the pretreatment and sedimentation processes. The sludge for the pretreatment and sedimentation processes is automatically collected and discharged to a sludge holding lagoon. The filter backwash is also discharged to the sludge holding lagoon. The combined sludge and backwash flows are gravity thickened. The thickened sludge is pumped to a sludge dewatering process. The dewatering process utilizes a centrifuge to dewater the sludge. The centrifuge capabilities are as follows: • Input 40 to 50 gpm • Feed Concentration 2% TS • Bowl Speed 4,000 RPM • Drive Size 40 HP The dewatered sludge is conveyed to a truck and is hauled to the Lincoln County landfill for disposal. The overflow from the centrifuge is returned to the lagoon. The lagoon is decanted utilizing a floating decanter. The overflow from the decanter is discharged to the South Fork Catawba River in accordance with the effluent limitations, monitoring requirements and other conditions of the NPDES permit.