2023 Annual Wastewater Treatment Performance Report

10 ANNUAL PERFORMANCE REPORT FOR THE JOHNSTON COUNTY WASTEWATER TREATMENT FACILITIES PERIOD July 01 , 20 2 2 TO June 30 , 20 2 3 I General Information Facility Name s Johnston County Wastewater Treatment Facilities Responsible Entity Johnston County Co ntact Person s Chandra Farmer , PE or John D Wall Address PO Box 2263 , Smithfield , NC 27577 Telephone # 9199895075 NPDES Permit # ’ s NC0030716 , NC0084735 , WQCS00060 and WQ0019632 The Central Johnston County Regional Wast ewater Facilities Permits NC0030716 and WQCS00060 collect and treat wastewater from the towns of Smithfield , Selma , Four Oaks , Wilson’s Mills , Pine Level , and Clayton County facilities also extend to and serve the East Clayton Industrial Park , the Cleve land community , NC 42 area east of the Neuse River , and the McGee’s Crossroads area The County operates and maintains a system of sewer line interceptors that extend through Smithfield to Selma Wastewater from Pine Level is pumped into this interceptor Wastewater from Four Oaks is transferred to the treatment facility through a series of force mains and interceptors involving three 3 pumping stations or can be directly pumped to Benson Each town is responsible for operating its own collection system Wastewater from the other areas identified above is pumped to the County’s treatment facility or the T own of Clayton wastewater treatment facility The treatment plant NPDES Permit # NC0030716 is located south of Smithfield The plant is a tertiary facility permitted to treat and discharge 95 million gallons per day to the Neuse River The plant treatment works consist of primary screening , activated sludge with biological nutrient removal , secondary clarification , denitrification filtration , and ul traviolet light disinfection Additionally , the plant stabilizes and dewaters biological sludge for disposal in the County’s lined landfill facility The County also treats process water NPDES Permit # NC0084735 from the County’s water filtration plan t in Wilson’s Mil ls This facility consists of surge decanting tank s , solids thickener , and fine solids polishing basin s with the effluent dechlorinated prior to discharge to the Neuse River These processes are located on the water plant site PageII Performance During the period July 01 , 20 2 2 through June 30 , 20 2 3 no violations occurred under NPDES Permit # NC0030716 During the period July 01 , 20 2 2 through June 30 , 20 23 , the following sanitary sewer overflows occurred under Permit # WQCS00060 Date Location Spill Volume Cause Date & Location Spill Volume Cause 8 16 2022 2677 - 2745 US Highway 70 W , Smithfield , NC 27577 35 , 000 Pipe Failure Break 1 27 2023 1000 East Huntley Street Smithfield , NC 2757 7 12,000 Pipe Failure Break During the period July 01 , 20 2 2 through June 30 , 20 2 3 , pH exceeded the daily limit on December 5 , 2022 under NPDES Permit # NC 0084735 During the period July 01 , 20 2 2 through June 30 , 20 2 3 , a mmonia nitrogen exceeded the daily limit on April 12 , 2023 under # WQ0019632 III Notification This report is available at the Johnston County Department of Utilities located at 309 East Market Street in Smithfield , the County Manager’s office in the Court House Annex , and has b een provided to the towns served by these facilities This report will also b e available on the County’s website at wwwjohnstonnccom A Public N otice was p ublished in the Johnstonian News notifying users of its availability IV Certification I certify under penalty of law that this report is complete and accurate to the best of my knowledge I further certify that this report has been made available to the users or customers of the named system and that those users have been notified of its availabilit y Date July 31,2023 Chandra Farmer , PE Public Utilities DirectorPage