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HomeMy WebLinkAboutNC0001422_Authorization to Construct_20110518,,j2i ACDENR North Carolina Department of Environment and Natural Resources Division of Water Quality Beverly Eaves Perdue Coleen H. Sullins Dee Freeman Governor Director Secretary May 18, 2011 Mr. Mark Frederick, Plant Manager Progress Energy Carolinas Inc 801 Sutton Steam Plant Road Wilmington, North Carolina 28401 SUBJECT: Authorization to Construct A to C No. 001422A04 Progress Energy Carolinas, Inc. Sutton Steam Electric Plant Construction of Station and Upgrade of Basin New Hanover County Dear Mr. Frederick: A letter of request for an Authorization to Construct was received March 2, 2011, by the Division of Water Quality (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 facility's drainage system, to support the closure of the South Retention Pond and redirecting drainage to the West Retention Pond, which feeds to the Old Ash Pond (Internal Outfall 002) at the Sutton Steam Electric Plant, with discharge of treated wastewater (via Outfall 001) into the Cape Fear River in the Cape Fear River Basin. This authorization results in no increase in design or permitted capacity and is awarded for the construction of the following specific modifications: Approximately 183 linear feet of 16 -inch gravity pipe, approximately 225 linear feet of 30- inch gravity sewer pipe, the new South Basin re- direction pump station consisting of dual 2,000 gpm pumps, approximately 1,720 linear feet of 12 -inch force main, modifications to the existing the West Basin pump station to install dual 2,400 gpm pumps; a 275 gallon Alum chemical storage tank with feed pump and delivery system into the existing 12 -inch force main which pumps into the existing Old Ash Pond (Internal Outfall 002), associated yard piping, electrical and site work, in conformity with the project plans, specifications, and other supporting data subsequently filed and approved by the Department of Environment and Natural Resources. 1617 Mail Service Center, Raleigh, North Carolina 27699 -1617 One Location: 512 N. Salisbury St. Raleigh, North Carolina 27604 NorthCarolina Phone: 919-807.63001 FAX: 919 -807 -6492 l Customer Service: 1-877-623-6748 Internet: www.ncwaterquality.org Naturally An Equal Opportunity 1 Affirmative Action Employer Mr. Mark Frederick, Plant Manager May 18, 2011 Page 2 This Authorization to Construct is issued in accordance with Part III, Paragraph A of NPDES Permit No. NC0001422 issued December 14, 2006, and shall be subject to revocation unless the wastewater treatment facilities are constructed in accordance with the conditions and limitations specified in Permit No. NC0001422. 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 Wilmington Regional Office, telephone number (910) 796 -7215, 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, this Authorization to Construct and the approved plans and specifications. Mail the Certification to: Construction Grants & Loans, DWQ/DENR, 1633 Mail Service Center, Raleigh, NC 27699 -1633. 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 T I 5A: 8G.0202. A copy of the approved plans and specifications shall be maintained on file by the Permittee for the life of the facility. Mr. Mark Frederick, Plant Manager May 18, 2011 Page 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. Failure to abide by the requirements contained in this Authorization to Construct may subject the Permittee to an enforcement action by the Division in accordance with North Carolina General Statute 143- 215.6A to 143- 215.6C. The issuance of this Authorization to Construct 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. One (1) set of approved plans and specifications is being forwarded to you. If you have any questions or need additional information, please contact Seth Robertson, P.E. at telephone number (919) 715 -6206. Sincerely, aw ; rot� 0A Coleen H. Sullins kp:sr cc: Anthony W. Boahn, P.E. - McKim & Creed, P.A. New Hanover County Health Department DWQ Wilmington Regional Office, Surface Water Protection DWQ, Technical Assistance and Certification Unit DWQ, Point Source Branch, NPDES Program Ken Pohlig ATC File Progress Energy Carolinas Inc A To C No. 001422A04 Issues May 18, 2011 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 Sutton Steam Electric Plant, located on U.S. Highway 421 north of Wilmington in New Hanover County for Progress Energy, hereby state that, to the best of my abilities, due care and diligence was used in the observation of the following construction: Approximately 183 linear feet of 16 -inch gravity pipe, approximately 225 linear feet of 30- inch gravity sewer pipe, the new South Basin re- direction pump station consisting of dual 2,000 gpm pumps, approximately 1,720 linear feet of 12 -inch force main, modifications to the existing the West Basin pump station to install dual 2,400 gpm pumps, a 275 gallon Alum chemical storage tank with feed pump and delivery system into the existing 12 -inch force main which pumps into the existing Old Ash Pond (Internal Outfall 002), associated yard piping, electrical and site work, in conformity with the project plans, specifications, and other supporting data subsequently filed and approved by the Department of Environment and Natural Resources. I certify that the construction of the above referenced project was observed to be built within substantial compliance and intent of the approved plans and specifications. Signature Date Registration No. Send to: Construction Grants & Loans DENR/DWQ 1633 Mail Service Center Raleigh, NC 27699 -1633