Loading...
HomeMy WebLinkAboutNC0023086_Authorization to Construct_20190610ROY COOP],.R overnw, I II " HAEI. S. I° .EGA S rret m yr 120 'I.KYPEl'i. Dimaw Ms. Zelerie Rogers Town Administrator P.O. Box 128 Fontana Dam, North Carolina 28733 Dear Ms. Rogers: NORTH CAM MIA June 10, 2019 SUBJECT: Authorization to Construct A to C No.023086A01 MODIFIED Town of Fontana Dam Fontana Dam WWTP NPDES Permit No. NCO023086 A request to modify the original Authorization to Construct permit approved design issued April 12, 2018 was received May 23, 2019 from your representative. The Division of Water Resources (Division) has reviewed the final plans and specifications for the subject chlorination modification and found it to be satisfactory. Authorization is hereby granted for the construction of modifications to the existing 0.3 MGD Fontana Dam WWTP, with discharge of treated wastewater into the Little Tennessee River in the Little Tennessee River Basin. This MODIFIED permit replaces the previous permit issued April 12, 2018. The attached Engineer's Certificate form was amended accordingly and replaces the previous issued certificate form. This authorization results in no increase in design or permitted capacity and is awarded for the construction of the following specific modifications: Replacement of existing four (4) sludge withdrawal pumps with four (4) new 100 GPM 2 HP non -clog submersible pumps, piping and controls; replacement of an existing scum withdrawal pump with one (1) new 100 GPM 2 HP non -clog submersible pump, piping and controls; replacement of existing two (2) supernatant / digester overflow pumps with two (2) new 136 GPM 2 HP non -clog submersible pumps, piping and control; replacement of existing chlorine gas disinfection system with tablet chlorination- dechlorination system which includes addition of one (1) calcium hypochlorite feed system, and one (1) sodium bisulfate feed system; installation of one (1)150 kW backup power generator; in conformity with the project plans, specifications, and other supporting documentation comprising the ATC Permit Application package submitted to the Department of Environmental Quality. S y'' A �I!',wu�m:uVmmum w�y'��S�ww�r AN"� w�nurum m �uN'�rmu � m~a:H�'Bww�a II wmr gum°� wwum.wwN. � i� III,',',:umha�u rwmamw~wmmr�� rN w hum �m��� S12NorshSaHsburS%vet � qr»uy�yt!!:�!iflSe�vice ama Ms. Zelerie Rogers, Town Administrator June 10, 2019 Page 2 of 3 In addition to the appropriate construction items approved in this Authorization to Construct, all other items stated in the application were deemed as maintenance events and require no approval. This ATC is issued in accordance with Part III, Paragraph A of NPDES Permit No. NC0023086 issued effective November 1, 2017, and shall be subject to revocation unless the wastewater treatment facilities are constructed in accordance with the conditions and limitations specified in Permit No. NC0023086. It is the Owner's responsibility to ensure that the as -constructed project meets the requirements of all applicable regulations and statutes, the ATC Permit Application package, and all of the requirements contained herein. Failure to comply may result in penalties in accordance with North Carolina General Statute § 143-215.6A through § 143-215.6C. The sludge generated from these treatment facilities must be disposed of in accordance with G.S. 143-215.1 and in a manner approved by the Division. In the event that the facilities fail to perform satisfactorily, including the creation of nuisance conditions, the Permittee shall take immediate corrective action, including those as may be required by the Division, such as the construction of additional or replacement wastewater treatment or disposal facilities. The Asheville Regional Office, telephone number 828-296-4500, shall be notified at least forty-eight (48) hours in advance of operation of the installed facilities so that an on site inspection can be made. Such notification to the regional supervisor shall be made during the normal office hours from 8:00 a.m. until 5:00 p.m. on Monday through Friday, excluding State Holidays. Upon completion of construction and prior to operation of this permitted facility, a certification must be received from a Professional Engineer certifying that the permitted facility has been installed in accordance with the NPDES Permit and the ATC Permit Application package. Mail the Certification to: Division of Water Resources, WQ Permitting — NPDES, 1617 Mail Service Center, Raleigh, NC 27699-1617. Upon classification of the facility by the Certification Commission, the Permittee shall employ a certified wastewater treatment plant operator to be in responsible charge (ORC) of the wastewater treatment facilities. The operator must hold a certificate of the type and grade at least equivalent to or greater than the classification assigned to the wastewater treatment facilities by the Certification Commission. The Permittee must also employ a certified back-up operator of the appropriate type and grade to comply with the conditions of T15A:8G.0202. The ORC of the facility must visit each Class I facility at least weekly and each Class II, III and IV facility at least daily, excluding weekends and holidays, must properly manage the facility, must document daily operation and maintenance of the facility, and must comply with all other conditions of T15A:8G.0202. Page 2 of 3 Ms. Zelerie Rogers, Town Administrator June 10, 2019 Page 3 of 3 A copy of the project plans and specifications shall be maintained on file by the Permittee for the life of the facility. During the construction of the proposed additions/modifications, the Permittee shall continue to properly maintain and operate the existing wastewater treatment facilities at all times, and in such a manner, as necessary to comply with the effluent limits specified in the NPDES Permit. You are reminded that it is mandatory for the project to be constructed in accordance with the North Carolina Sedimentation Pollution Control Act, and when applicable, the North Carolina Dam Safety Act. In addition, the specifications must clearly state what the contractor's responsibilities shall be in complying with these Acts. Prior to entering into any contract(s) for construction, the recipient must have obtained all applicable permits from the State. The issuance of this ATC does not preclude the Permittee from complying with any and all statutes, rules, regulations, or ordinances which may be imposed by other government agencies (local, state, and federal) which have jurisdiction. If you have any questions or need additional information, please contact Nick Coco at telephone number (919) 707-3609. Sincerely, @° .nda Cul er director, Division of Water Resources With Engineer's Certificate attached: cc: DWR Asheville Regional Office, Water Quality Programs Central Files ecopy: Mr. Kyle M. Seaman, P.E. McGill Associates, P.A. Email: kyle.seaman@mcgillengineers.com NPDES File Without Engineer's Certificate attached: cc: Graham County Health DWI/Matthew Rushing & Ken Pohlig Page 3 of 3 Town of Fontana Dam Fontana Dam WWTP Authorization to Construct No. 023086A01 MODIFIED Issued June 10, 2019 NPDES Permit No. NC0023086 Engineer's Certification I, , as a duly registered Professional Engineer in the State of North Carolina, having been authorized to observe (periodically/weekly/full time) the construction of the modifications and improvements to the Fontana Dam Wastewater Treatment Plant, located in Graham County, hereby state that, to the best of my abilities, due care and diligence was used in the observation of the following construction: Replacement of existing four (4) sludge withdrawal pumps with four (4) new 100 GPM 2 HP non -clog submersible pumps, piping and controls; replacement of an existing scum withdrawal pump with one (1) new 100 GPM 2 HP non -clog submersible pump, piping and controls; replacement of existing two (2) supernatant / digester overflow pumps with two (2) new 136 GPM 2 HP non -clog submersible pumps, piping and control; replacement of existing chlorine gas disinfection system with tablet chlorination-dechlorination system which includes addition of one (1) calcium hypochlorite feed system, and one (1) sodium bisulfate feed system; installation of one (1) 150 kW backup power generator; in conformity with the project plans, specifications, and other supporting documentation comprising the ATC Permit Application package submitted to the Department of Environmental Quality. I certify that the construction of the above referenced project was observed to be built within substantial compliance, intent and in conformity with all applicable regulations and statutes and the project plans, specifications, and other supporting documentation comprising the Authorization to Construct Permit Application package. Signature Date Registration No. Mail this Certification to: Attn: Bing Bai Complex Permitting Unit DEQ/DWR/Water Quality Programs 1617 Mail Service Center Raleigh, NC 27699-1617