Monthly Report October 2015 – Public Works Department

WATER – A total of 29,374,600 gallons of water were delivered, 11,400,000 gallons from Alder Creek treatment plant, 4,017,600 gallons from Brownell Springs and 13,957,000 gallons purchased from City of Portland. Maximum day production was 1.62 MG on October 15th. 5.84 inches of rainfall were recorded at the treatment plant site during the month the vast majority of which fell on October 31st. The roof at the treatment plant was replaced in October. The original tile roof was in relatively good condition but there were about 30 broken tiles which led to several leaks. These tiles are no longer manufactured so the only alternative was to replace the roof. City staff replaced a valve and drained the 2.0 MG concrete reservoir on Vista Loop for inspection and cleaning. It will be returned to service in November.

WASTEWATER – A total of 39,170,000 gallons of sewage were treated and re-used for irrigation. Minimum flow was 0.93 MGD on the 6th. Maximum flow was 3.3 MGD on the 31st. Rainfall was 1.0 inches on the 30th and 2.4 inches on the 31st. A total of 4.7 inches of rainfall were recorded during October.  BOD concentration was 11.5 mg/l; BOD loading was 118 lbs; permit allows 10 mg/l and 125 lbs.; SS concentration was 27.5 mg/l; SS loading was 282 lbs.; permit allows 10 mg/l and 125 lbs.  Effluent permit loading and limits do not apply when treated wastewater is used for irrigation. These figures are shown to demonstrate treatment efficiency.13.67 metric tons of sludge were processed in October and 17.86 metric tons were hauled and spread on local pasture land. The pumps at Marcy St.; Northside, Southside, Southeast, Southwest and Meinig Ave. lift stations ran a total of 344 hours. A pump at the Southwest pump station was sent in for repairs.

STREETS – The street sweeping contractor spent 91 hours sweeping streets and collected more than 60 tons (83 cu. yds.) of debris, covering 312 lane miles. Work began on the 2015 Pavement Maintenance Project portions of Loundree Dr. , Smith St. and all of Long Circle received an overlay.

PARKS, BUILDINGS AND GROUNDS – The west half of the Sandy Bluff Dog Park was closed temporarily for overseeding and fertilizing.  A new stormwater inlet and drain was installed adjacent to Hwy 211 in Meinig Park.