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HomeMy WebLinkAboutNC0064734_Authorization to Construct_198909149�� State 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 R. Paul Wilms William W. Cobey, Jr., Secretary Director September 14, 1989 Mr. Thomas W. Scott, Project manager John Crosland Company P. O. Box 11231 Charlotte, N. C. 28209-2608 Subject: Permit No. N00064734 John Crosland Company Bradfield Farms Subdivision Phase I Wastewater Treatment Facility Cabarrus County •i Dear Mr. Scott: The Division of Environmental Management has completed a review of the "as -built" plans submitted July 24, 1989, and finds that a permit amendment is not necessary. The following items were reviewed and found to be acceptable minor changes to the approved plans for the subject permit. 1. The top elevation and the ground level elevation of the pump station wet well are now both shown six inches higher. 2. The top rim of the effluent manhole is shown three feet lower, making this manhole three feet shorter. This should not effect the effluent discharge. 3. The influent box is slightly redesigned and relocated to the other side of the cat walk, a few feet from where it was. The redesign should not effect the original function or capacity. 4. The foundation for the tertiary filter is two feet longer, and should provide better support. 5. The WWTP six inch drain line is now shown running counter clockwise around the plant to reach the pump station wet well; where before the six inch line was shown clockwise around the plant to reach the wet well. Y Pollution Prevention Pays P.O. Box 27687, Raleigh, North Carolina 27611-7687 Telephone 919-733-7015 An Equal Opportunity Affirmative Action Employer ' The Division of Environmental Management hereby approves the changes that are described above and is returning the "as -built" plans stamped approved and any original stamped approved plans submitted. If you have any questions on this matter, please call Ms. Carolyn McCaskill or Mr. John Seymour at 919/ 733-5083. Since , . Paul Wilms cc: Mooresville Regional office Land Design Engineering Services, Inc. A STA)Z State of North Carolina Department of Natural Resources and Community Development Division of Environmental Management . _ : . - _ 512 North Salisbury Street • Raleigh, North Carolina 27611 James G. Martin, Governor June 16, 1988 R. Paul Wilms S. Thomas Rhodes, Secretary Director Mr. Thomas W. Scott, Project Manager John Crosland Company P. 0. Box 11231 Charlotte, N. C. 28209-2608 SUBJECT: Permit No. NCO064734 John Crosland Company Authorization to Construct Bradfield Farms Subdivision Phase I Wastewater Treatment Facility Cabarrus County Dear Mr. Scott: A letter of request for an Authori.7.4tion to Construct was received September 23, lg873 by the Division and final plans and specifications for the subject project have been reviewsd and found to be satisfactory. Authorization is hereby granted for the construction of a 0.23 MCD wastewater treatment facility consisting of a 40,000 gallon aerated surge tank with 160 GPM duplex pumps, a 287,000 gallon aeration tank, a 47,920 gallon secondary clarifier, a 23,000 gallon aerated sludge holding tank, three (3) at 540 CFM each rotary blowers, a 174 square feet of total area traveling bridge type tertiary filter system consisting of 29 filter cells and 120 GPL1 duplex backwash pumps, a 4800 gallon chlorine contact tank with a v-notch dual gaseous chlorinator a flow recorder and totalizer, a 2046 gallon pest aeration tank, 215 linear feet of. 12-inch gravity discharge pipe and all related valves, pipes, and appurtenances to serve Bradfield Farms Subdivision Phase I"'locsted in Cabarrus County. This Authorization to Construct is issued in accordance with Part HI paragraph B of the NPDES Permit No. NCO064734 issued September 10, 1986, and shall be subject to revocation unless the wastewater treatment facilities are constructed in accordance with the conditions and limitations specified in Permit No. NCO064734. The Permittee must employ a certified wastewater operator in accordance with Part III, paragraph C of the referenced permit. The sludge generated from these treatment facilities must be disposed of in accordance with G.S. 143-215.1 and in a manner approvable by the North Carolina Division of Environmental. Management. Pollution Prercntion Pz{vs P.O. Box 27687, Raleigh, forth Carolina 27611-7687 Telephone 919-733.7015 An Equal OpporTunity Affirmative Action Employer Mr. Scott Page Two The Mooresville Regional Office, telephone number 704/663-1699 shall be notified at least twenty-four (24) hours in advance of the installed system so that an in -place 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. In event the facilities fail to perform satisfactorily in meeting its NPDES permit effluent limits, the Permittee shall take such immediate corrective action as may be required by this Division, including the construction of additional wastewater treatment and disposal facilities. The sand media of the traveling bridge type filter system must comply with the Division's sand specifications and must be analyzed and approved by this Division either by direct sampling or by acquisition of filter sand from a dealer who is currently certified by the Division as an acceptable source. A copy of the approved plans and specifications shall be maintained on file by the permittee for five years from the date of issuance. 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. 0. Box 27687, Raleigh, N. C. 27611-7687. One (1) set of approved plans and specifications is being forwarded to you. If you have any questions or need additional information, please contact Mr. Asaad Shamsi, telephone number 919/ 733-5083, extension 548 Sincerely, . Paul Wilms F� cc: Cabarrus County Health Department D. C. Stewart ✓lir. Dennis R. Ramsey Mooresville Regional Supervisor .00r�O_Z;-. e��7