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HomeMy WebLinkAboutNC0027103_Authorization to Construct_19930521State of North Carolina Department of Environment, Health and Natural Resources ✓ Division of Environmental Management James B. Hunt, Jr., Governor Jonathan B. Howes, Secretary A. Preston Howard, Jr., P.E., Director May 21, 1993 Mr. McDuffie Cummings, Town Manager Town of Pembroke P. O. Box 866 Pembroke, North Carolina 28372 ► r CDEHNR SUBJECT: Town of Pembroke Permit No. NC0027103 Authorization to Construct Wastewater Treatment Facilities Robeson County Dear Mr. Mr. Ciris ngs : The final plans and specifications for the subject project have been reviewed and found to be satisfactory. Authorization is hereby granted for the construction and operation of additions and modifications to the existing 0.82 MGD conventional activated sludge wastewater treatment facility with an increase in capacity to 1.33 MGD and a change to an extended aeration wastewater treatment plant to consist of a 1.33 MGD influent pump station with three (3) 1,200 gpm pumps, a mechanical bar screen with a manual bypass screen, an aerated grit and grease removal unit, an influent Parshall flume with ultrasonic flow measurement, dual oxidation ditches with two (2) 50 Hp rotors or one (1) 60/45 Hp two -speed aerator per basin, dual 50 ft. diameter secondary clarifiers with polymer feed system, a return sludge pump station with three (3) 10 Hp, 600 gpm pumps, a chlorine contact basin with sulfur dioxide dechlorination, cascade post aeration, refrigerated effluent sampling, conversion of the existing aeration basin and clarifier to an aerated sludge digester with dual 50 Hp surface aerators and a sludge holding tank respectively, a rotary sludge thickener, a truck sludge loading station, approximately 235 linear feet of 18-inch effluent line, a 1475 square foot laboratory and office building and associated appurtenances, site work, yard piping, instrumentation, and electrical work, including a standby generator. P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone 919-733-7015 FAX 919-733-2496 An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper 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 wastewater treatment facilities by the Certification Commission. When a new chief operator must be obtained to be in responsible charge of the new facilities, it is required that this be done by the time the construction of the facilities is 50% complete. The Authorization -to -Construct is issued in accordance with Part III, Paragraph B of NPDES Permit No. NC0027103, issued August 28, 1992 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. NC0027103. The Permittee shall have an acceptable sludge analysis and a sludge toxicity analysis which have been approved by the Division of Environmental Management, Water Quality Section 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 Fayetteville Regional Office. 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. 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. One (1) set of final approved plans and specifications is to be forwarded to you for your files. The 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 Certification to the Permits and Engineering Unit, P. O. Box 29535, Raleigh, North Carolina 27626-0535. (Engineer's Certification Form is attached.) If you have any questions or need additional information, please contact Mr. Bill Hoffman, at (919) 733-6900, extension 615. Attachment BG:vk cc: Hobbs, Upchurch & Associates Mr. Don Safrit Fayetteville Regional Office Mr. Tom Fahnestock Mr. Joseph E. Martin, Jr. Mr. Don Evans Ms. Valerie Lancaster Mr. Bennie Goetze, Jr. Ms. Cindy Finan DMU -j,3/11,1/4 Iff fl(5r