EXH0348021148

RE: Implementation Plan for the Des Moines Creek Flow Augmentation Facility Dear Mr. Luster, Please take into account the following comments as you consider whether the Port of Seattle has provided reasonable assurance that its plans for expansion of SeaTac airport will meet the State's water quality standards. My analysis bears specifically on the proposed mitigation plan for Des Moines Creek, and are submitted on behalf of the Airport Communities Coalition. Page and paragraph references below refer to the Revised plan, dated August 18, 2000. Summary of Comments • The Port's Implementation Plan is not a specific plan but a bare concept. • The Implementation Plan contains no supporting hydrologic analysis of extreme climatic - , conditions that the plan is intended to mitigate. -" • The Des Moines Creek Basin Plan describes past damage and recommends remediation, but the Port's Implementation Plan would co-opt the entire mitigation package to offset the effects of the third runway. • Temperature improvements claimed for the Implementation Plan cannot be realized with one of the Port's sources of water. • The Implementation Plan relies on technological inputs whose continuity cannot be assured, • One of the two proposed sources of water would require nearly a mile of construction trenching through the golf course area; there is no information about where or how the construction would be done. • One of the two sources would have to be purged of drinking water conditioning chemicals, an andertaking that the Implementation Plan treats as no more…

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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 [...]