The URL can be used to link to this page

Home My WebLink AboutNC0074772_Permit Modification_20000105State of North Carolina Department of Environment and Natural Resources Division of Water Quality James B. Hunt, Jr., Governor Bill Holman, Secretary Kerr T. Stevens, Director January 5, 2000 Mr. Jerry H. Tweed Heater Utilities, Inc. P.O. Box 4889 Cary, North Carolina 27519 A1, • �,am NCDENR NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES Subject: NPDES Permit Modification NPDES Permit NCO074772 Diamond Head WWTP Iredell County Dear Mr. Tweed: The Division received your request to modify the subject permit on December 17, 1999. Personnel in the NPDES Unit and the NC DENR Mooresville Regional Office have reviewed your request and do not object to it. This permit modification corrects the facility description and monitoring requirements in the existing permit, effective February 1, 2000. References to the previous system capacity of 0.033 MGD have been deleted, as have monitoring requirements for a Class III facility. Please find enclosed the revised permit pages. The revised pages should be inserted into your permit. The old pages may then be discarded. All other terms and conditions contained in the original permit remain unchanged and in full effect. This permit modification is issued under the requirements of North Carolina General Statutes 143-215.1 and the Memorandum of Agreement between North Carolina and the U. S. Environmental Protection Agency. If any parts, measurement frequencies or sampling requirements contained in this permit modification are unacceptable to you, you have the right to an adjudicatory hearing upon written request within thirty (30) days following receipt of this letter. This request must be a written petition conforming to Chapter 150B of the North Carolina General Statutes, filed with the Office of Administrative Hearings (6714 Mail Service Center, Raleigh, North Carolina 27699-6714). Unless such demand is made, this decision shall be final and binding. If you have any questions concerning these permit modifications, please contact Charles Weaver at (919) 733-5083, extension 511. Sf cereI ff o 7- 11-11`�r T. Stevens ec: Central Files Mooresville Regional Office, Water Quality Section Point Source Compliance Enforcement Unit NPDES Unit o 1617 Mail Service Center, Raleigh, North Carolina 27699-1617 Telephone (919) 733-5083 FAX (919) 733-0719 An Equal Opportunity Affirmative Action Employer VISIT us ON THE INTERNET @ httpY/h2o.enr.state.nc.us/NPDES Permit NCO074772 SUPPLEMENT TO PERMIT COVER SHEET Heater Utilities, Inc., is hereby authorized to: 1. Continue to operate an existing 0.01 MGD wastewater treatment system that includes the following components: ➢ Bar screen ➢ Flow splitter box ➢ Dual aeration basins ➢ Dual clarifiers ➢ Tertiary filters ➢ Tablet chlorination and dechlorination ➢ Flow recorder ➢ Standby power generator This wastewater treatment system is located at the Diamond Head WWTP on NCSR 1109 near Mooresville in Iredell County. 2. Discharge from said treatment works at the location specified on the attached map into Lake Norman (Reeds Creek Arm), classified WS-IV & B CA waters in the Catawba River Basin. Permit NCO074772 A. (1.) EFFLUENT MUTATIONS AND MONITORING REQUIREMENTS — FINAL During the period beginning after Mansion above 0.033 MGD and lasting until expiration, the Permittee is authorized to discharge from outfall 001. Such discharges shall be limited and monitored by the Permittee as specified below: _ W- M pp V F it 7 ^ .r � p `• s x -s� y Flow 0.100 MGD Continuous Recording Influent or Effluent BOD, 5 day (209C) 15.0 mg/L 22.5 mg/L Weekly Composite Effluent Total Suspended Residue 30.0 mg/L 45.0 mg/L Weekly Composite Effluent NHs as N 4.0 mg/L Weekly Composite Effluent Dissolved Oxygenl Weekly Grab Effluent Fecal Coliform (geometric mean) 200 / 100 ml 400 / 100 ml Weekly Grab Effluent Total Residual Chlorine 28.0 Ng/L 2/Week Grab Effluent Temperature Weekly Grab Effluent Total Nitrogen (NOa+NOs+TKN) Quarterly Composite Effluent Total Phosphorus Quarterly Composite Effluent pH2 Weekly Grab Effluent Footnotes: 1. The daily average dissolved oxygen effluent concentration shall not be less than 6.0 mg/L. 2. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be monitored weekly at the effluent by grab sample There shall be no discharge of floating solids or visible foam in other than trace amounts. A. (2.) TOXICITY REOPENER CONDITION In the event that toxicity testing or other studies (conducted on the effluent or receiving stream) indicate that detrimental effects may be expected as a result of this discharge, the Division may modify or revoke and reissue this permit with toxicity limits and monitoring requirements. DIVISION OF WATER QUALITY December 16, 1999 MEMORANDUM C [' TO: Dave oodrich FROM: p Rex Gleason ' PREPARED BY: Richard Bridgeman SUBJECT: Permit Correction Request Heater Utilities Diamond Head WWTP Permit No. NCO074772 Iredell County Enclosed please find a copy of a permit correction request (monitoring frequencies) for the subject facility. A permit modification for ownership change was issued to Heater Utilities on August 10, 1999. The permit includes monitoring requirements for the existing WWTP which by regulation effective April 1, 1999 would be correct for a Grade III facility; however, since the design capacity of the activated sludge facility is only 0.100 MGD, and biological nutrient reduction is not required, then the facility should be classified Grade II. The NPDES permit for a Grade II facility would normally include weekly monitoring for most effluent pollutants, not 3/week monitoring. The subject permit is scheduled to expire on June 30, 2000. The requested modifications/ corrections would normally be made during the renewal process; however, the permittee is requesting immediate relief from the requirement to conduct 3/week monitoring. The request is reasonable, considering the time now required to process a renewal application. Should you have questions, contact the writer or me. Enclosure RM HAW PWIMDOC\MEMO\DIAMONHD.PMT U L�,�U��;�� i �� Heater � L � �� WATER AND �tll, WASTEWATER SERVICES I� pp F' I f. December 13, 1999 Mr. D. Rex Gleason, P.E. Water Quality Regional Supervisor NCDENR - DWQ Mooresville Regional Office 919 North Main Street Mooresville, NC 28115 RE: Permit Correction Request Diamond Head WWTP NPDES NO. NCO074772 Iredell County Dear Mr. Gleason: 4163 Sinclair Sheet P.O. Box 859 Denver, North Carolina 28037 phone: 704.489.9401 lax: 704.489.9409 I am writing to follow up to our phone conversation of December 9, 1999. At that time I indicated to you that our Permit, issued August 10, 1999 had limit based parameters reflecting monitoring requirements consistent with a grade III facility. It is my understanding that effective April 1. 1999 the rating scale was changed to reflect a scale based on flow design. When using a scale based on flow design if a plant has a flow limit less than 0.5 MGD and without nutrients or biological reduction the plant would be rated as a grade II facility. For this reason I believe that the grade III rating which we received for Diamond Head is incorrect. In view of this, Heater Utilities is respectfully requesting that the Diamond Head Permit be reissued with the monitoring requirements reflecting a measurement frequency of weekl for the limit based parameters. In addition to this request we would greatly appreciate relief from the three times per week monitoring until such time as a final decision is made and/or a new permit issued. Sould you have any questions or need further information, please do not hesitate to call me at 704-489-9404 ext. 232. Sincerely, Tony Parker Wastewater Operations Coordinator CC: Jerry Tweed Jocelyn Perkerson