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HomeMy WebLinkAboutNC0021733_Authorization to Construct_19891115State of North Carolina Department of Environment, Health, and Natural Resources Division of Environmental Management 512 North Salisbury Street • Raleigh, North Carolina 27611 James G. Martin, Governor William W. Cobey, Jr., Secretary Honorable Anita R. Ward, Town of Marshall P. 0. Box 548 Marshall, North Carolina Dear Mayor Ward: Mayor 28753 November 15, 1989 R. Paul Wilms Director SUBJECT: Town of Marshall Permit No. NC0021733 Revised Authorization to Construct Wastewater Treatment Facilities EPA Project No. C370779-01 Madison County The final plans and specifications for the subject project have been reviewed and found to be satisfactory. Authorization is hereby granted for upgrading the existing 85,000 GPD *.wastewater treatment facility to provide a 400,000 GPD extended aeration facility to consist of dual manual barscreens, an influent "Vt' notch weir, a 300,000 gallon capacity oxidation ditch with dual rotors having 25 Hp drives, a 36 foot diameter secondary clarifier with associated scum removal, conversion of existing 85,000 gallon package plant into an aerobic sludge digester with a 25 Hp floating aerator and 3 ton hoist, conversion of existing sludge holding tank into a sludge thickener, a one (1) meter wide belt filter press, dual 277 gpm centrifugal sludge recycle/wasting pumps, a 277 gpm centrifugal sludge transfer pump and a spare 277 gpm centrifugal pump, a recording effluent flow meter and a flow proportional composite effluent sampler, an in —plant recycle pump station with dual 100 gpm submersible plumps, level controls, and a high water level alarm, a laboratory/ administrative building, associated yard pipe, site work, and electrical work; and the upgrade of the Main Street Pump Station to consist of a new wetwell, dual submersible 100 gpm pumps, level controls and a high water level alarm. This Authorization to Construct supersedes the Authorization to Construct previously issued on February 20, 1989 for Permit No. NC0021733. P.O. Box 27687, Paleigh, North Carolina 27611-7687 Telephone 919-733-7015 An Equal Opportunity Affirmative Action Employer - 2 - Do not proceed with construction until the Authorization -to -Award package, EEO, and MBE documentation/certification have been reviewed, and you are in receipt of our approval, if Federal funding is desired for project construction. The permittee shall employ an actively State certified wastewater treatment plant operator to be in responsible charge of the wastewater treatment facilities. Such operator must hold a valid State Certificate of the grade at least equivalent to the classification assigned to the waste- water treatment facilities by the Certification Commission. When a new chief operator must be obtained to be in respcnsible charge of the new facilities, it is required that this be done by the time the construction cf the facilities is 50Z complete. The Authorization -to -Construct is issued in accordance with Part III, Paragraph C of NPDES Permit No. NC0021733, issued August 1, 1988 and shall be subject to revocation unless the wastewater treatment facilities are constructed in accordance with the approved plans, specifications, and supporting documents; and are in compliance with the conditions and limitations specified in Permit No. N00021733. The permittee shall! submit a detailed sludge management plan to the Asheville Regional Office, Water Quality Section for review and approval on or before January 15, 1990. The permittee shall submit a completed Pion -Discharge Permit Application with all supporting documentation to the Asheville Regional Office, Water Quality Section on or before iiugust 15, 1990. The permittee shall have an acceptable sludge analysis and a sludge E.P. toxicity analysis prior to the disposal of any sludge from the new wastewater treatment plant. Copies of the analyses, supporting documents, and approvals shall be submitted to the Division of Environmental Management's Water Quality Section and the Asheville Regional Office. 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. The disposing, selling or free distribution of wet, dried, composted sludge or sludge -like materials from wastewater facilities without prior review and approval by this Division is illegal. - 3 - One (1) set of final approved plans and specifications is to be forwarded to you, one (1) set to the Environmental Protection Agency (EPA), and one (1) set to the Corps of Engineers. A copy of the approved plans and specifications shall be maintained on file by the Owner for the life of the project. 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 approved plans and specifications. Mail the Certifica- tion to the Permits and Engineering Unit, P. 0. Box 27687, Raleigh, North Carolina 27611-7687. (Engineer's Certification Form is attached.) If you have any questions or need additional information, please contact Mr. Bill Hoffman, at (919) 733-6900. ,Sincerefly, R. Paul Wilms , ftN Attachment CGM:vk cc: Dobson Engineering & Associates Mr. Dennis Ramsey Mr. Don Safrit Asheville Regional Office CE - Charlotte EPA Mr. Tom Fehnestock Mr. Don Evans Ms. Valerie Helms Mr. Cecil Madden Mr. John Campbell EMU GPF