EXH0050017654

These final draft meeting notes have been prepared by Kate Snider, Floyd & Snider Inc. ATTENDEES Ann Kenny, Dept. of Ecology John Orabeck, Dept. of Ecology Kelly Whiting, King County Keith Smith, Port of Seattle Paul Fendt, Parametrix Charles Ellingson, Pacific Groundwater Group MEETING SCOPE AND AGENDA - This meeting was scheduled as a status meeting regarding Low Stream Flow related tasks. Previous meetings regarding low stream flow evaluation were held on Apdl 25 and May 9. The agenda of the meeting included: 1) Modeling status 2) Modeling deliverables regarding low stream flow impact • Non-hydrologic effects • Response to public comment related to low stream flow 3) Mitigation and Operational Plan 4) Schedule and process expectations MODELING STATUS 1. HSPF and embankment seepage modelers have agreed on the area that will be modeled for embankment seepage and treated differently in HSPS (per the 5/9 meeting notes). Mapping has been prepared that shows the area and configuration of impervious within the area. 2. Hydrus modeling has been completed. 10 and 20' thicknesses were included in the Hydrus modeling effort to better define areas of thin fill. AR 017654 C.,.I_OCUME- | _81llfl461 _LO_AL S. 1_Tll_l,l_L_low TII FINAL DRAFT c: o6/26/ol Page1of 4 401 Permit Decision-Making. Sea-Tac Airport Third Runway " " Floyd & Smder In_- June 13, 2001 - 3. Slice cross-sections have been developed and digitized, slice modeling is beginning. 4. Since the 5/9 Low Flow meeting, it was agreed that precipitation would occur on HSPF, not directly to Hydrus.…

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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 [...]