EXH0680025068

RE: Implementation Plan for the Des Moines Creek Flow Augmentation Facility Enclosed is an Implementation Plan for the Des Moines Creek Flow Augmentation Facility. The facility is proposed to address instrcam flow and temperature issues during summer low flow condition. The plan shows the locations of the various facilities (well, pipelines, introduction point and monitoring station) associated with the flow augmentation proposal. If you have any questions regarding the implementation plan, Please contact me at 206/988-5528 or smith.k_ortseattle.org. Kekh It. Smith Water Resources Manager Attachment cc: Elizabeth Leavitt, POS David Masters, King County Seattle-Tacoma InternationalAirport po _x_z27 AR 025068 Seattle, WA 98168 U.S.A. TELEX703433 FAX (206)43t-5912 I)_IH-_/_ 5 -7 5® Des Moines Creek Flow Auementation Implementation Plan The Des Moines Creek Basin Planning Committee, comprised of the cities of SeaTac and Des Moines, King County, the Port of Seattle, and the Washington Department of Transportation, have proposed several projects to enhance the Des Moines Creek watershed. One of these proposals is a flow augmentation facility. There are two goals associated with the flow augmentation facility: increasing streamflow to one cubic foot per second during low flow periods, and decreasing instream temperatures to 16 degrees Celsius during summer low flow periods. By introducing cool water to the stream in mid- to late summer, both of these goals can be met and water quality and aquatic habitat should be improved. The preferred option is to use water from a Port-owned well to provide water for flow augmentation. The well is currently used…

Open full document

Upcoming Events

PSCAA Advisory Council Meeting Agenda
Add to CalendarMWednesday Mar 11, 9:00am - 11:35am
1904 3rd Avenue, Suite 105, Seattle, WA 98101
Call to order – Roll Call – Quorum Established – Land Acknowledgement We would like to acknowledge that our Agency operates in four present-day counties, which are the traditional lands of the Coast Salish people, past and present. This acknowledgement does not take the place of authentic relationships with indigenous communities in our jurisdiction and [...]