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Home My WebLink AboutNC0020354_Permit (Issuance)_19960510NPDES DOCUMENT !;CANNINL COVER SHEET NC0020354 Pittsboro WWTP NPDES Permit: Document Type: Permit Issuance Wasteload Allocation Authorization to Construct (AtC) Permit Modification Complete File - Historical Engineering Alternatives (EAA) Correspondence Owner Name Change Approval Instream Assessment (67b) Speculative Limits Environmental Assessment (EA) Document Date: May 10, 1996 This document is printed on reuse paper - ignore a.ny content on the reirerse side State of North Carolina Department of Environment, Health and Natural Resources Division of Environmental Management James B. Hunt, Jr., Governor Jonathan B. Howes, Secretary A. Preston Howard, Jr., P.E., Director Mr. Ken Cornatzer Pittsboro Town Manager P.O. Box 753 Pittsboro, North Carolina 27312 Dear Mr. Cornatzer: A 75 I rA 1:3EHNR May 10, 1996 Subject: NPDES Permit Issuance Permit No. NC0020354 Pittsboro WWTP Chatham County In accordance with the application for a discharge permit received on June 15, 1995, the Division is forwarding herewith the subject NPDES permit. This permit is issued pursuant to the requirements of North Carolina General Statute 143-215.1 and the Memorandum of Agreement between North Carolina and the US Environmental Protection Agency dated December 6,1983. 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 be in the form of a written petition, conforming to Chapter 150B of the North Carolina General Statutes, and filed with the Office of Administrative Hearings, Post Office Drawer 27447, Raleigh, North Carolina 27611-7447. Unless such demand is made, this decision shall be final and binding. Please take notice this permit is not transferable. Part II, E.4. addresses the requirements to be followed in case of change in ownership or control of this discharge. This permit does not affect the legal requirements to obtain other permits which may be required by the Division of Environmental Management or permits required by the Division of Land Resources, 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 Greg Nizich at telephone number (919) 733-5083, extension 541. Sincerely, Original Signed By David A. Goodrich A. Preston Howard, Jr., P.E. cc: Central Files Raleigh Regional Office Mr. Roosevelt Childress, EPA Permits and Engineering Unit Facility Assessment Unit P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone (919) 733-5083 FAX (919) 733-0719 An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper Permit No. NC0020354 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENT, HEALTH, AND NATURAL RESOURCES DIVISION OF ENVIRONMENTAL MANAGEMENT PERMIT TO DISCHARGE WASTEWATER UNDER THE NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM In compliance with the provision of North Carolina General Statute 143-215.1, other lawful standards and regulations promulgated and adopted by the North Carolina Environmental Management Commission, and the Federal Water Pollution Control Act, as amended, Town of Pittsboro is hereby authorized to discharge wastewater from a facility located at the Pittsboro Wastewater Treatment Plant Small Street Extension southeast of Pittsboro Chatham County to receiving waters designated as Roberson Creek in the Cape Fear River Basin in accordance with effluent limitations, monitoring requirements, and other conditions set forth in Parts T. II, III, and IV hereof. The permit shall become effective June 1, 1996 This permit and the authorization to discharge shall expire at midnight on February 28, 2001 Signed this day May 10, 1996 Original Signed By David A. Goodrich A. Preston Howard, Jr., P.E., Director Division of Environmental Management By Authority of the Environmental Mangement Commission Permit No. NC0020354 SUPPLEMENT TO PERMIT COVER SHEET Town of Pittsboro is hereby authorized to: 1. Continue to operate a 0.75 MGD extended aeration wastewater treatment plant consisting of mechanical barscreen, grit removal, diffused aeration basins, clarifiers, phosphorus removal, high rate sand filters, sludge thickening, aerobic sludge digestion, UV disinfection, and cascade post aeration located at Pittsboro Wastewater Treatment Plant, Small Street Extension, southeast of Pittsboro, Chatham County (See Part III of this Permit), and 2. Discharge from said treatment works at the location specified on the attached map into Roberson Creek which is classified Class WS-IV NSW waters in the Cape Fear River Basin. A. (). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS SUMMER (April 1 - October 31) Permit No. NC0020354 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: Effluent Characteristic Discharge Limitationu Monitoring Requirements Measurement Sample *Sample Monthly Avg Weekly Avg. Daily Max Frequency Das Location Flow 0.75 NM Continuous Recording I or E BOD, 5 day, 20°C** 5.0 mg/l 7.5 mg/l 3/Week Composite E, I Total Suspended Residue** 30.0 mg/l 45.0 mg/l 3/Week Composite E, 1 NH3 as N 1.0 mg/l 3/Week Composite E Dissolved Oxygen *** 3/Week Grab E, U, D Fecal Coliform (geometric mean) 200.0 /100 ml 400.0 /100 ml 3/Week Grab E, U, D Total Residual Chlorine"' 3/Week Grab E Temperature Daily Grab E,U,D Total Nitrogen (NO2 + NO3 + TKN) Quarterly Composite E Total Phosphorus 2.0 mg/1**** Weekly Composite E Conductivity 3/Week Grab U, D * Sample locations: E - Effluent, I - Influent, U - Upstream 100 yards from outfall, D - Downstream 100 yards from outfall Upstream and downstream samples shall be grab samples. Stream samples shall be collected three times per week during June, July, August, and September and once per week during the remaining months of the year. ** The monthly average effluent BOD5 and Total Suspended Residue concentrations shall not exceed 15 % of the respective influent value (85% removal). *** The daily average dissolved oxygen effluent concentration shall not be less than 6.0 mg/l. **** Compliance shall be based on a quarterly average of weekly samples. *****The monitoring of Total Residual Chlorine shall occur only when chlorine is being used for disinfection. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be monitored 3/week at the effluent by grab sample. There shall be no discharge of floating solids or visible foam in other than trace amounts. A. (). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS WINTER (November 1- March 31) Permit No. NC0020354 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: Effluent Characteristic Discharge Limitation: Monitoring Measurement Monthly Avg Flow 0.75 MGD BOD, 5 day, 20°C" 10.0 m g / I Total Suspended Residue** 30.0 m g / I NH3asN 2.3 mg/I Dissolved Oxygen *** Fecal Coliform (geometric mean) 200.0 /100 ml Total Residual Chlorine***** Temperature Total Nitrogen (NO2 + NO3 + TKN) Total Phosphorus Conductivity 2.0 mg/1**** Weekly Avg. Daily Max 15.0 mg/I 45.0 mg/I 400.0 /100 ml Frequency Continuous 3/Week 3/Week 3/Week 3/Week 3/Week 3/Week Daily Quarterly Weekly 3/Week Requirements Sample Typo Recording Composite Composite Composite Grab Grab Grab Grab Composite Composite Grab *Sample Location I or E E, I E, E E, U, D E, U, D E E,U,D E E U, D * Sample locations: E - Effluent, I - Influent, U - Upstream 100 yards from outfall, D - Downstream 100 yards from outfall Upstream and downstream samples shall be grab samples. Stream samples shall be collected three times per week during June, July, August, and September .and once per week during the remaining months of the year. ** The monthly average effluent BOD5 and Total Suspended Residue concentrations shall not exceed 15 % of the respective influent value (85% removal). *** The daily average dissolved oxygen effluent concentration shall not be less than 6.0 mg/1. **** Compliance shall be based on a quarterly average of weekly samples. *****The monitoring of Total Residual Chlorine shall occur only when chlorine is being used for disinfection. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be monitored 3/week at the effluent by grab sample. There shall be no discharge of floating solids or visible foam in other than trace amounts.