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Home My WebLink AboutNC0024228_technical correction_20051018i r- -�l 'C Mr. Terry Houk City of High Point P.O. Box 230 High Point, North Carolina 27261 Dear Mr. Houk: Michael F. Easley, Governor William G. Ross Jr., Secretary North Carolina Department of Environment and Natural Resources Alan W. Klimek, P.E. Director Division of Water Quality October 18, 2005 Subject: City of High Point NPDES Permit No. NC0024228 High Point Westside WWTP Davidson County The permit for the High Point Westside WWTP that was issued on September 15, 2005 contained an error in the effluent and monitoring requirements for total cyanide. The sampling type for total cyanide should be grab instead of composite. The modified page with the correction is enclosed, please replace this page in your permit. If any parts, measurement frequencies or sampling requirements contained in this permit 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 bein the form of a written petition, conforming to Chapter 150B of the North Carolina General Statutes, and 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. Pleasenote 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 Teresa Rodriguez at telephone number (919) 733-5083, extension 553. Sincerely, cc: Central Files USEPA Region 4 Winston-Salem Regional Office/Surface Water Protection Section EAST NPDES Unit Files None Carolina attire, North Carolina Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 Phone (919) 733-5083 Customer Service Internet h2o.enr.state.nc.us 512 N. Salisbury St. Raleigh, NC 27604 FAX (919) 733-0719 1-877-623-6748 An Equal Opportunity/Affirmative Action Employer— 50% Recycled/10% Post Consumer Paper Permit No. NC0024228 A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - FINAL During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to discharge from outfall(s) serial number 001. Such discharges shall be limited and monitored by the Permittee as specified below: LIMITS MONITORING QUIREMENTS CHARACTERISTICS Monthly Average Weekly Average Daily Maximum Measurement Frequency Sample Type Sample Location Flow 6.2 MGD Continuous Recording Influent or Effluent BOD, 5 day, 20°C (April 1 - October 31)1 5.0 mg/L 7.5 mg/L Daily Composite Influent & Effluent BOD, 5 day, 20°C (November 1 - March 31)1 10.0 mg/L 15.0 mg/L Daily Composite Influent & Effluent Total Suspended Solids1 30.0 mg/L 45.0 mg/L Daily Composite Influent & Effluent NH3 as N (April 1 -October 31) 2.0 mg/L 6.0 mg/L Daily Composite Effluent NH3 as N (November 1 - March 31) 4.0 mg/L 12.0 mg/L Daily Composite Effluent pH2 Daily Grab Effluent Dissolved Oxygen3 Daily Grab Effluent Fecal Coliform (geometric mean) 200/100 ml 400/100 ml Daily Grab Effluent Total Residual Chlorine4 17.0 µg/L Daily Grab Effluent Temperature °C Daily Grab Effluent Total Nitrogen Weekly _ Composite Effluent Total Phosphorus5 (April 1 - October 31) 5,533 lbs Weekly Composite Effluent Total Phosphorus5 (November 1 - March 31) 7,808 1bs Weekly Composite Effluent Chronic Toxicity6 Quarterly Composite Effluent Total Nickel 2/Month Composite Effluent Total Copper 2/Month Composite Effluent Total Cyanide 2/Month Grab Effluent Total Aluminum 2/Month Composite Effluent Total Mercury? 0.014 µg/L _ 2/Month Grab Effluent Total Silver 2/Month Composite Effluent Zinc 2/Month Composite Effluent Notes: 1. The monthly average effluent BOD5 and Total Suspended Solids concentrations shall not exceed 15% of the respective influent value (85% removal). 2. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units. 3. The daily average dissolved oxygen effluent concentration shall not be less than 6.0 mg/1. 4. No monitoring is required for Total Residual Chlorine if chlorine is not utilised for disinfection. 5. The facility shall meet a Total Phosphorus mass limit of 5533 pounds as a total load for the summer (Apr - Oct) and 7808 pounds as a total load for the winter (Nov -Mar). 6. Chronic Toxicity (Ceriodaphnia) P/F at 90% January, April, July, and October; see Supplement to Effluent Limitations and Monitoring Requirements, Special Condition A (3). TOXICITY MONITORING SHALL COINCIDE WITH METALS MONITORING. Notes (Continued) Invoking Cyanide Clause in Westside Permit... -Reply Subject: Invoking Cyanide Clause in Westside Permit... -Reply Date: Wed, 26 Apr 2000 11:12:10 -0400 From: Marsh Prause <Marsh Prause@shmm.com> To: bill.frazier@ci.high-point.nc.us The letter looks fine, but I would make a few minor changes to the substantive language to match the language of the permit even more closely and to avoid any suggestion that this is a permissive situation: The City of High Point hereby notifies the Division of Water Quality that, per the permit language included in the City's March 10th 2000 Westside WWTP Permit No. NC0024228 ("the permit"), the City has met the conditions described in the permit's A (4) Cyanide Special Condition. Effluent cyanide values have not been detected greater than the quantitation limit of 10 ug/L through April 30, 2000. Accordingly, the City respectfully notifies you that it will exercise the option provided in the Cyanide Special Condition to eliminate the permit limit requirement for cyanide and to implement once per month monitoring for cyanide via grab sample. The City believes that this letter satisfies the pertinent terms of the Cyanide Special Condition and that monitoring, with no numerical limit requirement, will therefore be in effect on May 1, 2000 and thereafter, as described in the permit. If you have any further questions or comments, please do not hesitate to call us at (919) 883-3410. Isn't it nice for a change for us to be the ones telling the State what we are going to do instead of vice -versa? By the way, thanks for the lawyer jokes. I will send you some lab supervisor jokes if I ever come across any. -- Marsh 1 of 1 06/02/2000 11:45 AM High Point Westside WWTP NC0O24228 Special Condition: Should the City of High Point continue to report effluent cyanide values less than the quantitation limit of 10 ug/1 through April 30, 2000, the permit limit requirement for cyanide will be removed. Monitoring should continue to be performed 1 /month by grab sample. A letter signed by the City's signature authority, stating that the data have conformed to this requirement and monthly monitoring for cyanide shall begin May 1, 2000, must be submitted to: Mr. Shannon Langley Point Source Compliance and Enforcement DWQ Mail Service Center 1617 Raleigh, NC 27699 - 1617 Should the data not conform to the above requirement, or should the City of High Point toring, the limit and wish to have in until such timesser requirement an 1/month that a formal permitrmonitoring modification has been shall remain place performed.