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NC0086193_Permit Modification_20011031
ii F WATEMichael F. Easley _A Governor 0G ©TL, William G.Ross,Jr.,Secretary C NCDENR North Carolina Department of Environment and Natural Resources O ...&,. `c Gregory J.Thorpe,Ph.D..Acting Director Division of Water Quality October 31,2001 Mr.Jerry H.Tweed Heater Utilities,Inc. P.O. Box 4889 Cary,North Carolina 27519 Subject: NPDES Permit Modifications Permit NC0069035/Southgate WTP Permit NC0084468/Keltic Meadows WTP Permit NC0086142/Oakley Park WTP ' Permit NC0086193/Maplecrest WTP Dear Mr.Tweed: Personnel in the NC DENR Mooresville Regional Office have reviewed the subject permits and discovered a common typographical error in them. The Effluent Limits and Monitoring Requirements page in each permit mistakenly lists units of measure for Settleable Solids as milligrams per liter (mg/L). Accordingly,the Division has modified the subject permit as follows: ➢ The Effluent Limits and Monitoring Requirements page for each permit has been corrected. The Settleable Solids limits are now correctly expressed in milliliters per liter (ml/L). Please find enclosed the revised effluent pages,which should be inserted into your permits. The old pages may then be discarded. All other terms and conditions contained in the original permits 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 this permit modification,please contact Charles Weaver of the NPDES Unit at (919) 733-5083,extension 511. Sincerely, oo-- regory J.Thorpe,Ph.D. cc: Central Files Mooresville Regional Office,Water Quality Section Point Source Compliance Enforcement Unit NPDES Unit 1617 Mail Service Center,Raleigh,North Carolina 27699-1617 Telephone(919)733-5083 FAX(919)733-0719 An Equal Opportunity Affirmative Action Employer Visrr us ON THE INTERNET @ http://h2o.enr.state.nc.us/NPDES Permit NC0086 193 A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS — FINAL During the period beginning on the effective date of this permit and lasting until expiration. the Permittee is authorized to discharge from outfalls 001 and 002. Such discharges shall be limited and monitored by the Permittee as specified below: EFFLUENT LIMITS MONITORING REQUIREMENTS CHARACTERISTICS Monthly Daily Measurement Sample Type Sample Location1 Average Maximum Frequency Flow Quarterly Estimate Effluent Total Suspended Solids 30.0 mg/L 45.0 mg/L Quarterly Grab Effluent Settleable Solids 0.1 mVL 0.2 ml/L Quarterly Grab Effluent Turbidity2 Quarterly Grab Upstream&Downstream Iron Quarterly Grab Effluent Footnotes: 1. Upstream=immediately upstream of outfall 001. Downstream=at least 100 feet downstream from outfalls 001 &002. 2. The discharge from this facility shall not cause turbidity in the receiving stream to exceed 50 NTU. If the instream turbidity exceeds 50 NTU due to natural background conditions, the discharge cannot cause turbidity to increase in the receiving stream. There shall be no discharge of floating solids or visible foam in other than trace amounts. Neater Unlities'WTP's Subject:Heater Utilities'WTP's Date:Wed,24 Oct 2001 11:51:12-0400 From:Richard Bridgeman <Richard.Bridgeman@ncmail.net> Organization: NC DENR-Mooresville Regional Office To:Charles Weaver<Charles.Weaver@ncmail.net> Keltic Meadows (NC0084468) , egyamotominmmas , Oakley Park (NC0086142) , and Southgate (NC0069035) were recently reissued. Fox Run (NC0072061) has not yet been reissued. The permits indicate that the Settleable Solids limits are 0.1 mg/L and 0.2 mg/L (gravimetric) . Shouldn't the limits be volumetric (i.e. , 0.1 ml/L and 0.2 ml/L) ? The permittee is still conducting volumetric tests. Richard Bridgeman - Richard.Bridgeman@ncmail.net Environmental Chemist II North Carolina Dept. of Environment & Natural Resources Div. of Water Quality 919 N. 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