Monthly Report – July, 2021 Public Works Department

WATER – A total of 60,761,135 gallons of water were treated and delivered during July. 34,294,000 gallons from Alder Creek treatment plant; 11,067,000 gallons from Brownell Springs and 15,411,135 gallons purchased from City of Portland. Peak day production was 2.26 MGD on July 25th. 0.01 inches of rainfall were recorded at the water treatment plant site during the month with a peak of 0.01 inches on the 14th. A pump at Terra Fern Pump Station was rebuilt and returned to service.

WASTEWATER – A total of 27,820,000 gallons of sewage were treated and pumped to Iseli Nursery for irrigation use. Maximum flow was 0.93 MGD on the 14th (no rain prior to or during the maximum day). Monthly rainfall recorded at the plant was 0.02 inches with a peak of 0.02 inches (no date). 789,560 gallons of sludge were dewatered and processed during July. Monthly Average Effluent BOD was 5.0 mg/l. Monthly Average Effluent TSS was 8.3 mg/l. Monthly BOD and TSS limits do not apply when effluent is used for irrigation purposes. These figures are shown to demonstrate treatment efficiency. The plant was in compliance with permit limits during the month of July. Aeration basin #1 was drained and removed from service in preparation for cleaning. The UV disinfection system was inspected and replacement parts were ordered.

Work on the collections system rehabilitation project continued in July in Basin 8.

STREETS – The City’s street sweeping contractor spent 79.15 hours sweeping streets covering 166 travel and lane miles and collecting and disposing of 16.75 cubic yards of debris.

PARKS, BUILDINGS AND GROUNDS –  New landscape maintenance contracts for grounds at city facilities started in July.