EXH0048017610

PCHBPollution Control Hearings Board of the State of Washington

King County is pleased to be able to continue providing assistance the Washington State Deparuaent of Ecology (DOE) by making our technical review capacity and knowledge of local stormwaterconditions available for the reviewof the Port of Seattle's Comprehensive -. StormwaterManagementPlan (SMP) forMasterPlan Improvementsat SeaTac International Airport.This effortcontinuesto set anexcellent example of how State and local government canworkcooperativelyto providethe regionwith high quality service, cspeciaUyin these times of fiscal stressfor governmentservices. As with our previousreviewof this project,it is importantto keep in mind the limitationsof the workthat we have performed. First, this reviewis limited to ascertainingwhether the SMP attainedminimum compliancewith the 1998 KingCountySurface Water Design Manual. Compliancewith the technical provisionsof the Design Manual does not mitigateall potential impactsof developmentand may not providesufficient information to allow for approvalunder othercodes and regulations. Compliancewith the Design Manual is, however, a good start towardsmitigatingthe impacts of this largeand complex project. It is also importantto remember thatthis review is limited to those development activities identifiedby the Port of Seattle as beingMasterPlan Update Improvements. Whileother projectsof varying masnitude arebeing proposed forthis area, only those projects includedin the formal SIV_submissionwerereviewedforthis comment letter. No assumption of concurrencewith the technical detailsor effectivenessof additional projects should be assumed withoutour specific written comment. The SMPdemonstratesa soundconceptualsmategyfor complyingwith the technical provisions of the King County SurfaceWater Design Manual and, for the most part, effectively demonstratesthat theproposal improvementscan fully comply with Drainage Manual -- requirements. AR 017610 | • Ann Kmmy February 22, 2001 • Page 2 We have several general recommendations. Reviewers did find a…
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