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HomeMy WebLinkAboutNC0050105_Performance Annual Report_20080818WASTEWATER COLLECTIONS AND TREATMENT SYSTEMS ANNUAL PERFORMANCE REPORT July 1, 2007 - June 30, 2008 icanrce_. Electric & Water Utilities PUBLIC WORKS COMMISSION Public Works Commission of the City of Fayetteville, North Carolina 2007-2008 WASTEWATER COLLECTIONS AND TREATMENT SYSTEMS ANNUAL PERFORMANCE REPORT General Information Facility/System Name: Responsible Entity: Collections Systems Collection System Public Works Commission of the City of Fayetteville, Town of Stedman, Hoke County, NORCRESS and Eastover Sanitary Sewer District Person in Charge/Contact: John "Rick" Davis, (910) 223-4718 Applicable Permit(s): WQCS00007, WQCS00351, WQCS00352, WQCS00353, WQCS00354 Description of Collection Systems The following description of collection systems is for the Public Works Commission of the City of Fayetteville and the four permitted entities with which PWC maintains operation and maintenance agreements. The Public Works Commission of the City of Fayetteville's sanitary sewer collection system is separated into two basins, the Cross Creek and the Rockfish Creek basins. The collection system consists of approximately 1205.6 miles of sewer mains varying in size and material and also includes 70 sewer pumping stations. Main sizes range from 6" to 60". Wastewater is collected from approximately 72,239 customers in the City of Fayetteville and surrounding Cumberland County area. The PWC serves approximately 11 Industrial, 4847 Commercial and 67,381 Residential customers. The wastewater is conveyed to the Cross Creek and Rockfish Creek Water Reclamation Facilities. Since March 2001, the PWC has operated and maintained the Town of Stedman sanitary sewer system. The system serves approximately 414 customers (371 residential and 43 non-residential) and consists of approximately 21.6 miles of sanitary sewer mains and 4 pumping stations. The wastewater from Stedman is conveyed to the Rockfish Creek Water Reclamation Facility. Since October 2002, PWC has operated and maintained the Hoke County sanitary sewer system, owned by Hoke County. The system currently serves 743 customers (739 residential and 4 non- residential) and consists of approximately 12.9 miles of sewer mains and 3 pumping stations. The wastewater from Hoke County is conveyed to the Rockfish Creek Water Reclamation Facility. In September 2005, PWC began operation and maintenance of the newly installed NORCRESS (Wade, Godwin, and Falcon) sanitary sewer system, owned by Cumberland County. The system serves 275 customers (220 residential and 55 non-residential) and consists of approximately 34.5 miles of sanitary sewer and 4 pumping stations. The wastewater from NORCRESS is conveyed to the Cross Creek Water Reclamation Facility. Public Works Commission of the City of Fayetteville -2- 2007-2008 WASTEWATER COLLECTIONS AND TREATMENT SYSTEMS ANNUAL PERFORMANCE REPORT In January 2007, PWC began operation and maintenance of the newly installed Eastover Sanitary District sanitary sewer system owned by Eastover Sanitary District. This system serves approximately 81 customers (67 residential and 14 non-residential) and consists of approximately 2.0 miles of sanitary sewer mains and 4 pump stations. The wastewater from Eastover Sanitary District is conveyed to the Cross Creek Water Reclamation Facility. Public Works Commission of the City of Fayetteville WOCS00007 - Summary of Collections System Performance for Fiscal Year (July 2007 — June 2008) During the Fiscal Year July 2007 — June 2008, approximately 8.769 billion gallons of wastewater were conveyed to the Cross Creek and Rockfish Creek Water Reclamation Facilities. Sanitary sewer overflows totaling 17,295 gallons or .00020% of total gallons conveyed were reported to the NC Department of Environment and Natural Resources, Water Quality Division. Monthly estimates are as follows: Month Gallons Month Gallons July 0 January 950 August 500 February 1250 September 750 March 730 October 9500 April 850 November 15 May 0 December 2000 June 750 Public Works Commission Collections System Performance for Fiscal Year (July 2007-June 2008) (continued) Sanitary sewer overflow events in which volumes exceeding 1,000 gallons overflowed and reached surface waters are included in the monthly estimates and are shown separately as follows: Event 1: Date: 10/15/2007 Gallons: 9500 Location: 4990 Doc Bennett Rd. MH #8943 behind Special Forces Building Description: On Sunday, October 14, 2007 the Rockfish Creek WRF experienced an equipment failure that caused wastewater to back up in the collection system and eventually resulted in an SSO on the morning of October 15, 2007. Corrective Measures: The overflow was stopped by placing standby bar screens and screw pumps in service to help quickly relieve the backup of wastewater in the collections system. The failed equipment, a 1/4 inch mechanical bar screen, is monitored by our SCADA system but an audible alarm was not transmitted Public Works Commission of the City of Fayetteville - 3 - 2007-2008 WASTEWATER COLLECTIONS AND TREATMENT SYSTEMS ANNUAL PERFORMANCE REPORT due to a speaker system malfunction. The issue with the speaker system has been corrected. Lime was applied to ground at affected area. No adverse environmental impact associated with this spill. Town of Stedman WQCS00351 - Summary of Collections System Performance for Fiscal Year (July 2007 — June 2008) During the Fiscal Year July 2007 — June 2008, approximately 26.0 million gallons of wastewater were conveyed to the PWC collection system and treated at the Rockfish Creek Water Reclamation Facility. No sanitary sewer overflows were reported to the NC Department of Environment and Natural Resources, Water Quality Division. Hoke County WQCS00352 - Summary of Collections System Performance for Fiscal Year (July 2007 — June 2008) During the Fiscal Year July 2007 — June 2008, approximately 22.2 million gallons of wastewater were conveyed to the PWC collection system and treated at the Rockfish Creek Water Reclamation Facility. No sanitary sewer overflows were reported to the NC Department of Environment and Natural Resources, Water Quality Division. NORCRESS WQCS00353 - Summary of Collections System Performance for Fiscal Year (July 2007 — June 20081 During the Fiscal Year July 2007 — June 2008, approximately 27.8 million gallons of wastewater were conveyed to the PWC collection system and treated at the Cross Creek Water Reclamation Facility. No sanitary sewer overflows were reported to the NC Department of Environment and Natural Resources, Water Quality Division. Eastover WQCS00354 - Summary of Collections System Performance for Fiscal Year (July 2007 — June 2008) During the Fiscal Year July 2007 — June 2008, approximately 5.6 million gallons of wastewater were conveyed to the PWC collection system and treated at the Cross Creek Water Reclamation Facility. No sanitary sewer overflows were reported to the NC Department of Environment and Natural Resources, Water Quality Division. Note: Copies of sanitary sewer overflows are on file at the Public Works Commission's Water Resources Construction Department located at 955 Old Wilmington Road. Public Works Commission of the City of Fayetteville -4- 2007-2008 WASTEWATER COLLECTIONS AND TREATMENT SYSTEMS ANNUAL PERFORMANCE REPORT General Information Facility/System Name: Responsible Entity: Persons in Charge/Contact: Applicable Permit(s): Treatment Systems Cross Creek Water Reclamation Facility Public Works Commission of the City of Fayetteville Larry Roberts - Operations Supervisor (910) 223-4757 Andres A. Vinent, Jr. - Facilities Manager (910) 223-4712 NPDES NC0023957 WQ0000527 NCG110015 Description of Treatment Process The Cross Creek facility is permitted to process 25 million gallons per day (MGD) of wastewater. The treatment processes consist of an influent piimp station, mechanical bar screens, grit removal, primary clarification, activated sludge system with nitrification, secondary clarification, filtration, disinfection, and dechlorination. Biosolids generated by these processes are stabilized through anaerobic digestion and recycled as a fertilizer and soil conditioner to various land application sites. Summary of Treatment System Performance for Fiscal Year (July 2007 — June 2008) The Cross Creek Water Reclamation Facility met all permit requirements and had no Notices of Violation (NOV) pertaining to the proper return of treated wastewater into the Cape Fear River. Public Works Commission of the City of Fayetteville -5- 2007-2008 WASTEWATER COLLECTIONS AND TREATMENT SYSTEMS ANNUAL PERFORMANCE REPORT General Information Facility/System Name: Responsible Entity: Persons in Charge/Contact: Applicable Permit(s): Treatment Systems Rockfish Creek Water Reclamation Facility Public Works Commission of the City of Fayetteville Wendell "Chuck" Baxley - Facility Supervisor (910) 223-4701 Andres A. Vinent, Jr. — Facilities Manager (910) 223-4712 NPDES NC0050105 W(20000527 NCG110016 Description of Treatment Process The Rockfish Creek facility is permitted to process 21 million gallons per day (MGD) of wastewater. The treatment processes consist of an influent pump station, mechanical bar screens, grit removal, activated sludge system with nitrification, secondary clarification, filtration, disinfection and dechlorination. Biosolids generated by these processes are stabilized through aerobic digestion and recycled as a fertilizer and soil conditioner to various land application sites. Summary of Treatment System Performance for Fiscal Year (July 2007 — June 2008) The Rockfish Creek facility consistently met all but one permit condition throughout fiscal year 2008, which resulted in a Notice of Violation (NOV). During the month of April 2008, the quarterly acute bioassay test did not pass; however, all other plant performance indicators and limits were in compliance. A detailed analysis of the treatment processes and laboratory data showed no apparent reason for the bioassay failure. Additional bioassay and priority pollutant scans were run and all tests were found compliant. No environmental issues were observed during this incident. Public Works Commission of the City of Fayetteville 6 2007-2008 WASTEWATER COLLECTIONS AND TREATMENT SYSTEMS ANNUAL PERFORMANCE REPORT Notification and Certification Prevention During the time from July 2007-June 2008, PWC made the following efforts to reduce overflows as associated with grease: • PWC conducted a public information campaign that included radio & television advertising; information in quarterly customer bill insert; and several customer messages about proper grease disposal. • Provided approximately 1,500 "Fat Trappers" grease disposal containers to customers as part of "Cease the Grease" Education program. • Conducted priority cleaning and rehabilitation of "targeted problem" sewer lines. Notification The report shall be available on the Public Works Commission's Internet web site (www.favpwc.com) and at the PWC Public Information Office (910) 223-4009. A statement of availability will be included in customers' bills during the month of September. Certification I certify under penalty of law that this report is complete and accurate to the best of my knowledge. I further certify this report has been made available to the users or customers of the named system and those users have been notified of its availability. ITAODY M. JGfNo and Date Chief Operating Officer -Water Resources Division Public Works Commission of the City of Fayetteville Public Works Commission of the City of Fayetteville -7-