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HomeMy WebLinkAboutNC0077143_Permit modification_20060929oFANATF�_ o� Q� C r o � September 29, 2006 Ms. Lisa D. Smith-Peri West Carteret Water Corporation P.O. Box 849 Newport, North Carolina 28570 Michael F. Easley, Governor State of North Carolina William G. Ross, Jr., Secretary Department of Environment and Natural Resources Alan W. Klimek, P.E., Director Division of Water Quality Subject: NPDES PERMIT REVISION Permit Number NCO077143 West Carteret WTP Carteret County Dear Ms. Smith-Peri: Attached is a revised sheet A.(1) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS page for NPDES permit NCO077143 which was recently issued to you as a modification. The sampling. requirement for dissolved oxygen was listed as a composite sample, it should have been a grab sample. In addition, as you requested, we are granting an 18 month compliance schedule for the composite sample requirements. Until April 1, 2008, you can take grab samples. Composite sampling will be required starting on April 1, 2008. Please remove the old page A. (1) from your permit and replace it with the attached,page A. (1). Please take notice that this permit is not transferable. This permit does not affect the legal requirements to obtain other permits which may be required by the Division of Water Quality or permits required by the Division of Land Resources, Coastal Area Management Act, or any other Federal or Local governmental permits which may be required. If you have any questions or need additional information, please do not hesitate to contact Jim McKay of my staff at (919) 733-5083, extension 595. Sincerely, 100"-<6ec. h� �l%►'Alan W. Klimek, P.E. Director, Division of Water Quality cc: Central Files NPDES Unit Files Wilmington Regional Office — Surface Water Protection Aquatic Toxicology Unit 1617 MAIL SERVICE CENTER, RALEIGH, NORTH CAROLINA 27699-1617 - TELEPHONE 919-733-5083/FAX 919-733-0719 VISIT US ON THE WEB AT http://h2o.enr.state.nc.us/NPDES Permit NCO077143 A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS During the period beginning on the effective date of this permit and lasting until expiration, the Permittee is authorized to discharge filter backwash from outfall 001. Such discharges shall be limited and monitored by the Permittee as specified below: EFFLUENT CHARACTERISTICS - LIMITS MONITORING REQUIREMENTS Monthly Average Daily Maximum Measurement Fr. uenc Sample Type Sample Location Flow 0.084 MGD Weekly Estimate Effluent Temperature 1/Month Grab Effluent Salinity 1/Month Grab Effluent Conductivity 1/Month Grab Effluent Dissolved Oxygen 1/Month Grab Effluent Total Dissolved Solids 1/Month Grab Effluent Total Suspended Solids 20.0 m /L 30.0 m /L 2/Month Grab Effluent Total Copper 1/Month Com osite3 Effluent Total Chloride 1/Month Com osite3 Effluent Total Iron 1/Month Com osite3 Effluent Total Manganese 1/Month Com osite3 Effluent Total Lead 1/Month Com osite3 Effluent Total Zinc 1/Month Com osite3 Effluent Ammonia Nitrogen 1/Month Com osite3 Effluent Total Nitrogen (TN) 1/Month Com osite3 Effluent Total Phosphorus (TP) 1/Month Com osite3 Effluent PH1 2/Month Grab Effluent Whole Effluent ToAcity2 Quarterly Com osite3 Effluent Footnotes: 1. The pH shall not be less than 6.8 standard units nor greater than 8.5 standard units. 2. Acute 24-hour Pass/ Fail (Fathead Minnow OR Mysid Shrimp OR Silverside Minnow, Permittee's choice) at 90%; January, April, July and October; refer to Special Condition A (2). 3. The requirement for composite samples will begin on April 1, 2008. Grab samples shall suffice until that date. All samples collected should be from a representative discharge event. There shall be no discharge of floating solids or visible foam in other than trace amounts. P O Bois 849.4102 Hwy 24 Newport, NC 28570 (252) 393-1515 West Carteret Water Corporation (252) 393-1540 Toll Free A non-profit water corporation serving western Carteret Count (252) 393-1540 Fax R � 9 y waterCMwcwc.biz Email September 25, 2066 Ms. Carolyn Bryant D Division of Water Quality KSEP 2006 . Point Source Branch 1617Mail Service Center Raleigh, NC 27699-1617 DENR - WATER QUALITY POINT SpURCE BRANCH Subject: NPDES Permit Renewal #NC0077143 -Request for Sample Waiver/Extersion Dear Ms. Bryant: In the process of requesting a permit amendment to include future iron removal at our water treatment plant, which should be completed in approximately 18 months, our monitoring requirements were greatly amended. Thinking that it was because of the future changes to our plant, I spoke with James McKay on August 17, 2006. At that time, we were told that the original permit would remain in place until iron removal was added. However, on September 18, 2006, I received a very nice email from Mr. McKay who explained that he had misinterpreted the permit and it actually is effective this month. I was quite concerned about receiving a violation because of the time constraint to make arrangements to take the samples listed, some of which are now composite samples. I still am unclear as to why we are having to sample for the items listed as compared to other similar water treatment systems. Therefore, I do plan to follow-up with Mr. McKay again regarding that since I can not seem to find anything on the internet that links the samples to our current treatment. In the meantime, he suggested in a subsequent email. that I contact you to request a compliance schedule to give us time to authorize, purchase, and install a composite sampler system. I have .contacted a few companies about purchasing a refrigerated, all-weather composite sampler, which will cost in excess of $5,000. Once .the proper equipment is selected and ordered, we can expect a delivery within 3 weeks. As such, -we are requesting a time extension to take the samples listed. Our board will meet on October 10`h. -I plan to have the purchase authorized at that time, but.I can request an emergency meeting if needed. In good faith, we attempted to clarify the permit when we received it. Since September 30'h is quickly approaching, I would appreciate it if you could contact me on my mobile phone at (252) 241-0116. or -via email to lisa.smithperri _,wcwc.biz to let us know how we should proceed. It would be very helpful if this requirement could be extended a few months, in as much as our treatment and effluent has not changed. Sincerely, 01 Lisa D. Smith -Perri, GM Cc: Michelle Clements, P.E.,-The East Group Tom Moore, Wilmington Regional Office James McKay; DWQ, NPDES Unit