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Home My WebLink AboutNC0027103_NPDES Permit Mod_20101217. Y NCDENR North Carolina Department of Environment and Natural Resources Division of Water Quality Beverly Eaves Perdue Coleen H. Sullins Dee Freeman Governor Director Secretary December 17, 2010 MCDUFFIE CUMMINGS MANAGER TOWN OF PEMBROKE PO BOX 866 PEMBROKE NC 28372 DENR-FRO DEC 2 1 2010 DWQ Subject: Acknowledgement of Permit Modification Request for NC0027103 Town of Pembroke Pembroke WWTP Robeson County Dear Mr. Cummings: The Division of Water Quality acknowledges receipt of your permit modification request and has assigned it to a reviewer. The reviewer will perform a detailed review and contact you with a request for additional information if necessary. To ensure the maximum efficiency in processing permit applications, the Division requests your assistance in providing a timely and complete response to any additional information requests. Please note at this time, processing permit applications can take as long as 60 — 90 days after receipt of a complete application. If you have any questions, please contact Bob Sledge at 919-807-6398, or via email at bob.sledge@ncdenr.gov. If the reviewer is unavailable, you may leave a message, and they will respond promptly. PLEASE REFER TO THE ABOVE APPLICATION NUMBER WHEN MAKING INQUIRIES ON THIS PROJECT. Sincerely, 42altu4raLdu, Dina Sprinkle Cc: Central Files CFayeffeville Regional= Office -Surface Water Protection Section Permit application file NC0027103 1617 Mail Service Center, Raleigh, North Carolina 27699-1617 Location: 512 N. Salisbury St. Raleigh, North Carolina 27604 Phone: 919-807-6300 \ FAX: 919-807-64921 Customer Service: 1-877-623-6748 Internet: www.ncwaterquality.org An Equal Opportunity \ Affirmative Action Employer Nor thCarolina Naturally Town of Pembroke POST OFFICE BOX 866 PEMBROKE, NORTH CAROLINA 28372 MILTON R. HUNT MAYOR McDUFFIE CUMMINGS MANAGER AMIRA HUNT CLERK NCDENR/Division of Water Quality NPDES Surface Water Protection Section 1617 Mail Service Center Raleigh, NC 27699-16147 Dear Surface Water Protection Section: COUNCILMEN: LARRY BROOKS LARRY McNEILL GREGORY CUMMINGS ALLEN G. DIAL. The Town of Pembroke is requesting a minor permit modification of NPDES Permit NC0027103. The Town of Pembroke wishes to remove cadmium as a monthly monitoring requirement. Thecurrent permit went into effect October, 2009. Since that time Pembroke has performed 14cadmium analyses that were all less than the detection level. In fact all cadmium analyses dating back to 2005 have been below detection. Our waste stream is 100% domestic and we have no industrial dischargers. In light of the above data we are requesting that the cadmium monitoring be removed. Over the life of the permit approximately $3400 could be allocated to maintenance or the purchase of new equipment, which is vital to daily wastewater treatment, especially small systems. The current economy has forced.Pembroke to search all. avenues for efficiency and still fulfill all obligations. The Town of Pembroke appreciates your cooperation and anticipates that together we can protect public health and the environment. Please contact Rhonda Locklear at 910-521-2989 if you have any questions. Sincerely, DENR-FRO DEC 2 1 2010 Dw a AT'A NCDENR North Carolina Department of Environment and Natural Resources Division of Water Quality - Beverly Eaves -- Governor Director MAR 1 4 2011 Dee-Freem Secretary Mr. McDuffie Cummings, Town Manager i; - ` 1((— Town of Pembroke L� __ u �' P. O. Box 866 i ;, .) '} . rnli Pembroke, NC 28372 J c Subject: NPDES Permit Modification Permit Number NC0027103 Town of Pembroke WWTP Robeson County Dear Mr. Cummings: Division personnel have reviewed and approved your application for minor modification of the subject permit. Accordingly we are forwarding the attached modified permit page. Please remove the existing "Effluent Limitations And Monitoring Requirements" page and replace it with the one attached to this letter. This modification removes the effluent monitoring requirement for cadmium. The modification was based upon the following factors: 1) your statement that the flow to the WWTP is 100% domestic, with no contributions from industrial discharges, and 2) a reasonable potential analysis based upon effluent data submitted by the - - facility was conducted, which showed the discharge exhibited no reasonable potential to cause the water quality standard for cadmium to be exceeded in the receiving stream. This modification is issued pursuant to the requirements of North Carolina General Statute 143-215.1 and the Memorandum of Agreement between North Carolina and the U.S. Environmental Protection Agency dated October 15, 2007 (or as subsequently amended). Please note that this permit is not transferable except after notice to the Division. The Division may require modification or revocation and reissuance of the permit. 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, the Coastal Area Management Act or any other Federal or Local governmental permit that may be required. If you have any questions concerning this permit, please contact Bob Sledge at telephone number (919) 807-6398 or via e-mail at bob.sledge@ncdenr.gov. _ . 4 _ cerely, .. !1i( Coleen H. Sullins cc: Central Files ;Fayetteville Regional Office/Surface-Water Protection Section' NPDES Permit File ec: Aquatic Toxicology Unit EPA Region 4 — Pamela Myers 1617 Mail Service Center, Raleigh, North Carolina27699-1617_ Location: 512 N. Salisbury St. Raleigh, North Carolina 27604 Phone: 919-807-6300 \ FAX: 919-807-6492 \ Customer Service: 1-877-623-6748 Internet: www.ncwaterquality.org An Equal Opportunity\ Affirmative Action Employer or . -.- ne thCarolina Naturally Permit NC0027103 .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-€rom-outfall-001.--Such-discharges-shall-be-limited-arid-monitored-by-the-Permittee-as-specified below: • EFFLUENT CHARACTERISTICS LIMITS . • MONITORING REQUIREMENTS.. Monthly Average .. Weekly Average. Daily .. Maximum Measurement- : 'Frequency Sample Type. Sample location Flow • 1.33 MGD Continuous Recording Influent or 'Effluent Temperature, °C Daily Grab Effluent Temperature, °C (June 1 - September 30) - 3/Week Grab Upstream a. Downstream 1 Temperature, °C (October 1 - May 31) WeeklyGrab Upstream £t Downstream BOD, 5-day, 20° C 2 18.0 mg/L 27.0 mg/L 3/Week Composite Influent It Effluent Total Suspended Solids (TSS) 2 20.0 mg/L 30.0 mg/L 3/Week Composite Influent Effluent Ammonia as Nitrogen (NH3-N) 12.0 mg/L 35.0 mg/L 3/Week Composite Effluent Dissolved Oxygen (DO) Not less than 5.0 mg/L daily average 3/Week Grab Effluent Dissolved Oxygen, mg/L (DO) (June 1 - September 30) 3/Week Grab Upstream Ft Downstream 1 Dissolved Oxygen, mg/L (DO) (October 1 - May 31) WeeklyGrab Upstream 8 Downstream 1 Fecal Coliform (Geometric mean) 200/100 ml 400/100ml 3/Week Grab Effluent pH Not more than 9.0 S.U. nor less than 6.0 S.U. 3/Week Grab Effluent Total Residual Chlorine 3 28 pg/L 3/Week Grab Effluent Total Kjeldahl Nitrogen (TKN) Monitor and Report, mg/L Monthly Composite Effluent Nitrite/Nitrate Nitrogen (NO2-N + NO3-N) _ Monitor and Report, mg/L Monthly Composite Effluent Total Nitrogen (TN) TN = (NOZ-N + NO3-N) + TKN Monitor and Report, mg/L Monthly Calculated Effluent Total Phosphorus (TP) Monitor and Report mg/L Monthly Composite Effluent Chronic Toxicity 4 Quarterly Composite Effluent Pollutant Analysis 5 Annually Composite Effluent Footnotes: Sample locations: Upstream -=-CSXX R.R.'Trestle .(above plant), Downstream =•at$ridge SR 1554..- 2. The monthly average effluent BOD5 and Total Suspended Solids concentrations shall not exceed 15 percent of the respective monthly average influent value (85% removal). 3. TotalResidualChlorine compliance is required for chlorine or chlorine derivative used for disinfection. The Division shall • consider all effluent TRC values reported below 50 ug/t to be in compliance with the permit. However, the Permittee shall continue to record and submit all values reported by a North Carolina certified laboratory (including field certified), even if these values fall below 50 ug/l. 4. Chronic Toxicity (Ceriodaphnia) P/F at 1.7%; January, April, July, and October. See Special Condition A.(2.) of this permit. Quarterly sampling shall be conducted at the same time as metal and other effluent parameters sampling is conducted. 5. See Condition A.(3.) of this permit. There shall be no discharge of floating solids or visible foam in other than trace amounts.