Monthly Report – January, 2020 Public Works Department

WATER – A total of 34,714,300 gallons of water were treated and delivered during January. 10,411,500 gallons from Alder Creek treatment plant, 8,284,000 gallons from Brownell Springs and 16,018,800 gallons purchased from City of Portland. Peak day production was 1.04 MGD on January 2nd. 15.48 inches of rainfall were recorded at the water treatment plant site during the month.

WASTEWATER – A total of 72,090,000 gallons of sewage were treated and discharged to Tickle Creek. Maximum flow was 3.22 MGD on the 11th (rainfall was 0.61″ on the 10th and 0.82″ on the 11th). Monthly rainfall recorded at the plant was 10.4 inches. 410,480 gallons of sludge were dewatered and stored. Average BOD concentration was 11.88 MG/L (permit allows 10 MG/L) BOD lbs discharged were 199 lbs/day (permit allows 125 lbs/day) Average SS concentration was 22.5 MG/L (permit allows 10 MG/L) SS lbs discharged were 446.75 lbs/day (permit allows 125 lbs/day). There were permit violations for weekly and monthly SS, BOD and coliform count. Site visits and inspections were performed at all Food Service Establishments (FSEs about 60 total) connected to the system as part of the Fats, Oils and Grease (FOG) program. Staff made contact with all FSE operators and helped confirm existing schedules or establish new cleaning and inspection schedules for many of the Food Service Establishments that had not been on a regular cleaning schedule for their grease traps and interceptors.