EXH0241A018999

A 16300 christen,senroad. Suite350 vancouver I EXHIBIT NO_ "y')_/ I seattle, washington98188-3418 edmonton • ..?_._-c.:. I (2o6)241-eooo._ seattle • M. Green(206) 439-2420 - ILX September27, 2000 Mr. GordonWhite ProgramDirector ShorelandsandEnvironmentalAssistanceProgram WashingtonStateDepartmentof Ecology 300 Desmond Drive SE Lacey, WA 98503 Subject: Preliminary Comments (Set 3) on August 2000 Stormwater Management Plan for Seattle-Tacoma International Airport Master Plan Update Improvements. This letter is ourthird installmentof preliminaryreviewcommentson theAugust 2000 Stormwater ManagementPlan, and shouldbe readasa continuationof ourlettersdatedSeptember21, 2000 and September25, 2000. As explainedinthefirst instaJlment_ourcommentsarebeingprovidedon an incrementalbasisbecauseof delaysin ourbeingprovidedthe SMP andthe lack of adequatetime to providecomprehensivereview comments. This letter focusesonthe SMP's failureto addressbasinboundarymodificationsasrequiredin the Governor'sCertificationI for thisproject,and on problemswith SMP assumptions/relianceon future modificationsto the airport'sIndustrial WastewatexSystem(IWS). No Demonstration of Compliance with Governor's Certification The Governor's Certification for this project includes the following requirement: "'ThePort of Seattle will design and construct the third runway xuch that the project will not cause changes in the locat_on of the hydrologic divide between Miller and Des Haines Creeks in a manner that alters the average instream flow of either creek." The SMP does not demonstrate that this requirement is met. The title on SMP Volume 2-Appendix A, "Hydrologic Evaluation of Stormwater Drainage Basin Changes..." 8ires a misleading description of the contents of that document. Nowhere in the SMP is there a complete description of the proposed basin changes or an assessment of how basin changes would affect the average flows of the receiving streams. ILetter dated June 30, 1997, from Governor Gary Locke to Rodney Slat, r, Secretary, U.S.…

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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 [...]