EXH0145018225

PCHBPollution Control Hearings Board of the State of Washington

Attachedisthe draftclarificationmemo. Letme knowif youwou_ likerevisionsorclarificationon anything. I willt Idahofora longweekend,goneFridayandMonday,butwilltouchbaseswithyouon Tuesday. Inthe meantimecol - Sam Casneifyouneedassistance. Bestregards, KatieWalter AR 018225 f u =111 SHANNON & WILSON, INC.* OEOTECHNICAL AND ENVIRONMENTAL CON_,ULTANTS DRAFTMEMORANDUM DONOTDISCLOSEDELIBERATIVE 400NORTH34THSTREET- SUITE100 SEATTLE P.O.BOX_ RICHLANO SEATTLE,WASHINGTON98103 FAIRBANKS r 206-632-8020 /¢¢")-I(_GE TDO:1-800-&33-63_ SAINTLOUIS BOSTON FAX:206-633-6777 To: Ann Kenny and Erik Stockdale, Washington Department of Ecology From: Katie L. Walter, Shannon and Wilson, Inc. Date: April25, 2001 Project No.: 21-I-12020-001 Subject: OutstandingIssues for Port Resolution Shannon & Wilson, Inc. has had a series of meetings with TunKelly of Patametrix Inc. to help to clarify outstanding issues regarding the Natural Resource Mitigation Plan for Seattle International Airport proposed third runway. We met at Ecology headquarters on April 5, 2001 with Ann Kenny and Erik Stockdale, at the Port West Side offices on April 12, 2001 and at the Auburn mitigation site on April 19, 2001. We discussed the proposed mitigation and clarified many points. The following outlines how each issue was resolved, or if it needs further clarification from Parametrix. The responses to my questions are in italics below the specific question, and unless stated otherwise were responses from Tan Kelly. We have added follow up questions resulting from their responses. Miller Creek and Walker Creek What ground water data is available? Has a plan been put together showing where data is being collected currently? What kind of baseline informationis available? How has the hydrology of wetlands directly"adjacentto the fill been studied? How will this be monitored? If changes…
V V