Monthly Report – December, 2019 Public Works Department

 

WATER – A total of 35,313,000 gallons of water were treated and delivered during November. 6,976,000 gallons from Alder Creek treatment plant, 9,013,000 gallons from Brownell Springs and 15,400,332 gallons purchased from City of Portland. Production at Brownell Springs resumed a 200 gpm in December. 6.31 inches of rainfall were recorded at the water treatment plant site during the month. Veolia staff replaced several water quality monitoring devices that were obsolete with new units (furnished by City) at the WTP and Brownell Springs.

WASTEWATER – A total of 42,010,000 gallons of sewage were treated and discharged to Tickle Creek. Maximum flow was 2.28 MGD on the 21st (rainfall was 0.23″ on the 20th and 0.63″ on the 21st). Monthly rainfall recorded at the plant was 4.75 inches. 360,790 gallons of sludge were dewatered and landfilled. Average BOD concentration was 12.23 MG/L (permit allows 10 MG/L) BOD lbs discharged were 109.4 lbs/day (permit allows 125 lbs/day) Average SS concentration was 22.75 MG/L (permit allows 10 MG/L) BOD lbs discharged were 213.9 lbs/day (permit allows 125 lbs/day). There were permit violations for weekly and monthly SS and BOD and Ammonia (single day and monthly average). PW staff assisted Veolia personnel with cleaning the grit chamber and a waste sludge pump was repaired.