Notes
Letter dated July 25, 2000 from Keith R. Smith, Water Resources Manager at Port Of Seattle, to Tom Luster at Washington Department of Ecology (Shorelands & Environmental Assistance Program), transmitting the Implementation Plan for the Des Moines Creek Flow Augmentation Facility. The plan describes a facility to increase streamflow to 1 cubic foot per second and decrease instream temperatures to 16 degrees Celsius during summer low flow periods. The preferred water source is a Port-owned well near South 200th Street with a water right certificate for 400 gallons per minute (0.88 cfs), with a water right change application filed with Ecology in June 2000. An 8-inch PVC pipeline would convey water approximately 800 feet north to the creek confluence of the east and west branches, with a monitoring station 375 feet downstream at an existing weir. Backup water source is the Port’s distribution system via Seattle Public Utilities, Highline Water District, and King County Water District 125, requiring dechlorination. Plan based on ‘Des Moines Creek Flow Augmentation Plan’ by Parametrix, Inc., August 1998. Copied to Elizabeth Leavitt (POS) and David Masters (King County). AR 025068–025070.