PUBLIC WORKS – Monthly Report – April 2022

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WATER:
  • Alder Creek had a Peak Day production of 0.606 MG on April 13th.
  • Alder Creek water plant production net of backwash water used was 11.15 MG.
  • Brownell Springs production was a total of 2.30 MG and Peak Day production was on April 27th with a total of 250,380 gallons.
  • Portland Water Bureau source production was a total of 17,986,097 gallons with a Peak Day production of 1,826,507 on April 17th.
  • We recorded a total of 9.23 inches of rainfall at the water plant with peak rainfall on April 10th with a total of 1.52 inches.
  • EQUIPMENT ISSUES: A Power outage on April 16th  caused loss of SCADA setpoints throughout the system, resulting in additional PWB water taken                     
WASTEWATER
  • On April 13th the Peak day flow was 2.95 MG and there was .71 inches of rainfall.  The day before on April 12th, 0.70 inches of rainfall were recorded.
  • A total of 41.7 MG of sewage was treated in the month of April.
  • Monthly rainfall recorded at the plant was 7.99 inches with a peak of 1.00 inches on the 11th of April.
  • 431,970 gallons of sludge were dewatered, processed and landfilled during April.
  • Monthly Average Effluent BOD was 8.5 mg/l and the April monthly average for TSS was 13.6 mg/l.
  • EQUIPMENT ISSUES:
    * IMLR Pump 1 returned to Service on April 7th.
    * BFP Polymer mixing system failure on April 13th.
    * BFP stator and expansion joint failure on April 14th.
    * Major power outage and loss of SCADA controls on April 16th
        (ongoing issues for several days)
    * BFP Polymer system repaired and returned to service on April 22nd.
  • PERMIT EXCEEDANCES OR EXCURSIONS:  
    * Ammonia daily exceedance on April 18th.
    * Effluent TSS weekly exceedance on April 12th.
    * Effluent TSS monthly exceedance
STREETS:
  • The City’s street sweeping contractor removed 16 cubic yards of debris.
STORMWATER:
  • With the heavy rains during the month of April, there was localized flooding with a sizeable flood at Meinig Park. Public Works staff responded and checked the flow control station located in the parking lot.
Other News to Note:

Konell Construction was notified of intent to award the contract for 362nd & Bell St construction (April 26, 2022)

Public Works fixed a water leak at the location where AntFarm holds their annual Farmers Market. (see below)