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HomeMy WebLinkAboutNC0037834_Authorization to Construct_20170829Water Resources ENVIRONMENTAL OUALITY August 29, 2017 Ms. Courtney Driver Utilities Director Winston-Salem/Forsyth County Utility Commission 101 N Main Street, Suite 357, City Hall Winston-Salem, North Carolina 27101 SUBJECT: Dear Ms. Driver: ROY COOPER MICHAEL S. REGAN S. JAYY-ZIMMERMAN Authorization to Construct A to C No. 037834A06 Winston-Salem/Forsyth County Utility Commission Archie Elledge WWTP A letter of request for an Authorization to Construct was received June 15, 2017, by the Division of Water Resources (Division), and final plans and specifications for the subject project have been reviewed and found to be satisfactory. Authorization is hereby granted for the construction of modifications to the existing 30 MGD Archie Elledge Wastewater Treatment Plant, with discharge of treated wastewater into the Salem Creek in the Yadkin -Pee Dee Basin. 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 dry -pit WAS pump station with a new WAS pump station which includes three (3) 600 GPM at 45 ft TDH submersible screw pumps with AFD, piping and controls; installation of one (1) new Sludge Gravity Belt Thickener system rated for 1,351 lb/hour (dry) consisting of Gravity Belt Thickener, one (1) 1,000 gallon polymer storage tank, one (1) inline mixer with polymer injection ring, three (3) 1.88 GPH at 60 psi polymer feed pumps, wash system, piping and controls; installation of three (3) 200 GPM at 45 psi rotary lobe positive displacement thickened WAS pumps with AFD, piping and controls; conversion of the exiting thickener overflow wet -well to a new filtrate pump station which includes installation of two (2) 1,000 GPM at 9 ft TDH submersible centrifugal filtrate pumps, piping and controls; removal of gravity thickener; in conformity with the project plans, specifications, and other supporting documentation comprising the ATC Permit Application package submitted to the Department of Environmental Quality. In addition to the appropriate construction items approved in this Authorization to Construct, the following work scope items stated in the application were deemed as maintenance events and require no approval: • Refurbishment of two (2) existing gravity belt thickeners with new control panels • New electrical room within the existing gravity belt thickener building State of North Carolina I Environmental Quality I Water Resources 512 N. Salisbury Street 11612 Mail service Center I Raleigh, North Carolina 27699-1612 Phone: 919 807 6464 Ms. Courtney Driver, Utilities Director August 29, 2017 Page 2 of 3 In-kind replacement of exiting odor control scrubber fan and motor Miscellaneous building improvements This ATC is issued in accordance with Part III, Paragraph A of NPDES Permit No. NC0037834 issued effective August 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. NC0037834. 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 Winston-Salem Regional Office, telephone number 336-776-9800, 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 H, 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. A copy of the project plans and specifications shall be maintained on file by the Permittee for the life of the facility. Ms. Courtney Driver, Utilities Director August 29, 2017 Page 3 of 3 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 Trupti Desai at telephone number (919) 807-6351. Sincerely, x S. Jay Zimmerman, P.G. Director, Division of Water Resources With Engineer's Certificate attached: cc: DWR Winston-Salem Regional Office, Water Quality Programs Central Files e -copy: Joseph R. Shy, P.E. Black & Veatch International Company Email: shyjr@bv.com NPDES File Without Engineer's Certificate attached: cc: Forsyth County Health DWUKen Pohlig Winston-Salem/Forsyth County Utilities Commission Archie Elledge WWTP Authorization to Construct No. 037834A06 Issued: August 29, 2017 Engineer's Certification 11, , 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 Archie Elledge Wastewater Treatment Plant, located in Forsyth 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 dry -pit WAS pump station with a new WAS pump station which includes three (3) 600 GPM at 45 ft TDH submersible screw pumps with AFD, piping and controls; installation of one (1) new Sludge Gravity Belt Thickener system rated for 1,351 lb/hour (dry) consisting of Gravity Belt Thickener, one (1) 1,000 gallon polymer storage tank, one (1) inline mixer with polymer injection ring, three (3) 1.88 GPH at 60 psi polymer feed pumps, wash system, piping and controls; installation of three (3) 200 GPM at 45 psi rotary lobe positive displacement thickened WAS pumps with AFD, piping and controls; conversion of the exiting thickener overflow wet -well to a new filtrate pump station which includes installation of two (2) 1,000 GPM at 9 R TDH submersible centrifugal filtrate pumps, piping and controls; removal of gravity thickener; 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: Trupti Desai Complex Permitting Unit DEQ/DWR/Water Quality Programs 1617 Mail Service Center Raleigh, NC 27699-1617