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Home My WebLink AboutNC0068365_Permit Modification_20020710NPDES DOCUHENT :MCANNINO COVER :SHEET NPDES Permit: NC0068365 Pilot Mountain WTP Document Type: Permit Issuance Wasteload Allocation Authorization to Construct (AtC) Permit Modification - Complete File - Historical Engineering Alternatives (EAA) Staff Report Instream Assessment (67b) Speculative Limits Environmental Assessment (EA) Permit History Document Date: July 10, 2002 This document is printea on reuse paper - ignore any content on the reYerse side o' \ IArF9 SZA r NCDENR —r Mr. Billy Pell Town of Pilot Mountain Post Office Drawer AA Pilot Mountain, North Carolina 27041 Dear Mr. Pell: 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 July 10, 2002 Subject: Modification of NPDES Permit NC0068365 Pilot Mountain WTP Surry County The subject permit was issued on October 1,1999. A review of the permit file by Division personnel noted a typographical error on the effluent page of your permit. The limits for Settleable Solids were incorrectly expressed in mg/L. This modification corrects the error, showing the limits expressed in ml/L. Please find enclosed the revised effluent page, which should be inserted into your permit. The old page 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 this permit modification, please contact Charles Weaver of the NPDES Unit at (919) 733-5083, extension 511. Sincerely, 1an.o W. Klimek, P.E. cc Central Files Winston-Salem Regional Office, Water Quality Section 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 NC0068365 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 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 Frequency Sample Type Sample Location Flow Weekly Instantaneous Effluent Total Suspended Solids 30.0 mg/L 45.0 mg/L 2/Month Grab Effluent Settleable Solids 0.1 ml/L 0.2 mUL Weekly Grab Effluent Turbidityi Weekly Grab Upstream & Downstream Iron Weekly Grab Effluent Total Residual Chlorine Weekly Grab Effluent Aluminum Weekly Grab Effluent Footnotes: 1. 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. 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. •ettleable solids Subject: settleable solids Date: Tue, 19 Feb 2002 16:05:18 -0500 From: jeanne Phillips <jeanne.phillips@ncmail.net> To: Charles Weaver <Charles.Weaver@ncmail.net> CC: walt scheper <walt.scheper@ncmail.net> Charles, We have some parameters in BIMS with unit -of -measure not allowable. I'm trying to clear up this list. Two permits NC0068365 and NC0084212 have mg/1 as the unit -of -measure for parameter 00545. The only allowable uom for 00545 is ml/1. I looked at these two permits and they were written with a uom of mg/l. Is mg/1 correct and therefore we need to have EPA add mg/1 as an allowable uom for settleable solids, 00545, or does there need to be a permit correction to ml/1? Jeanne 1 of 1 3/25/2002 10:17 AA: