Monthly Report Public Works Department September, 2020

WATER – A total of 45,859,591 gallons of water were treated and delivered during September. 20,270,000 gallons from Alder Creek treatment plant, 7,182,720 gallons from Brownell Springs and 18,406,871 gallons purchased from City of Portland. Peak day production was 3.35 MGD on September 10th. This is the historic peak day for our system. The planned PGE power shutdown in the Hoodland Corridor forced us to run the treatment plant and pump stations on generator power during the wildfire event. This also meant loss of SCADA communications which forced Veolia staff to run the plant and pump stations with only ‘snapshot’ views of the system which reduced production from these sources. The bulk of the peak day production consisted of about 2.5 MGD from City of Portland. We were very fortunate that we had this alternate source to satisfy water demand during the fires. 2.58 inches of rainfall were recorded at the water treatment plant site during the month with 1.06 inches on September 25th.

WASTEWATER – A total of 26,560,000 gallons of sewage were treated and re-used for irrigation. Maximum flow was 1.17 MGD on the 26th. Monthly rainfall recorded at the plant was 2.96 inches with a peak of 1.28 inches on the 24th. 640,510 gallons of sludge were dewatered and stored for future landfilling. We complied with our wastewater discharge permit for September. The work on the second effluent filter was delayed by air quality issues during the wildfires it should be completed in October. Veolia staff repaired several pumps at the plant site and sent one pump off for repairs.

STREETS – City staff continued painting parking stalls in City lots and stop bars at arterial and collector street intersections. The City’s contract street sweeper spent 81 hours sweeping 51 lane miles of streets while collecting 41 cubic yards of debris, most of it resulting from the windstorm in early September. Public Works staff spent about 120 hours picking up and disposing of debris from the windstorm. The contractor on the LED streetlight conversion project paused work during the poor air quality period following the wildfires.

PARKS, BUILDINGS AND GROUNDS – Parks, Buildings and Grounds staff spent time cleaning up storm damage and posting new signage once parks facilities were added to the list of venues that could be opened to the public. P,B&G staff also spent time cleaning up the grounds and removing sight-obscuring vegetation around the rental house in Bornstedt Park to make it more visible to the surrounding neighborhood. Work continued on repairing water damage and refinishing the floors in the rental house.