EXH0620024356

RE: Request for Administrative Order for Lagoon #3 B._pass Seattle-Tacoma International Airport (NPDES Permit WA-002465-1) Dear Mr. Abbasi: Enclosed you will find the request for an administrative order prepared under Special Condition S5.B of the NPDES permit for Seattle-Tacoma International Airport. The Port is currently expanding the capacity of Lagoon #3. The Engineering Report submitted to Ecology in December 1995 described the remediation and expansion of the capacib, of Lagoon #3 as part of"all knov,_a,available and reasonable treatment" (AKART) for the Port's industrial waste treatment.plant. In order to remediate and line the facilib,, it will be necessary to take the existing Lagoon #3 out of service this year from 1April to 31 December. The enclosed plan describes the alternatives considered by the Port and the preferred alternative. With Lagoon #3 offline, the Port must rely on the storage capacity, of Lagoons #1 and #2. The Port v'ill take every, effort to treat all IWS flows between 1 April and 31 December, but there is a possibili_, that some of the flows may have to be released to Des Moines Creek untreated. These would be unavoidable bypasses - necessary,for construction. Because construction is anticipated to start m the near future, we would appreciate your prompt attention to this request. If you have questions regarding this letter, please call Tom Hubbard of my staffat 206/248-7135. Director,"A_ation Facilities & Environmental Programs Enclosure cc: Tom Hubbard,, POS/AV/ENV Seattle-Tacoma InternationalAirport r-,.O.Box 68727 Sc-_:tle,WA9_68 USA. TEL_ 703433 F,',_,"(2061437-5._ :. ® AR 024356 Nee, SEPA Proposals for…

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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 [...]