EXH2003029160

These draft meeting notes have been prepared by Kate Snider, Floyd & Snider Inc. Please reply to Kate at (206) 292-2078, fax (206) 682-7867, with comments on the accuracy of these notes by 5pro, Fdday, 4/27/0!. ATTENDEES Ann Kenny, Dept. of Ecology KellyWhiting, KingCounty Keith Smith, Portof Seattle Joe Brascher, AquaTerra Peter Schwartzman, Pacific Groundwater Group, by phone for part of the meeting Kate Snider, Floyd& Snider Inc. MEETING SCOPE AND AGENDA The purpose of this meeting was to discuss in further detail the water balance relationship between the HSPF and embankment modeling for the low-flow analysis and suggested revisions to the low flow analysis. This meeting is a follow up to the April 4 low-flow technical meeting. PRE-PROJECT LOW-FLOW CALCULATIONS 1. }_evised c,_lcul_ti,_nsof pre-projec.', low stream flow will utilize the 1994 calibration flies (1994 cJnditions with existin,_ basin defini_ionL POST-PROJECT LOW-FLOW CALCULATIONS 1. Post-project low flow calculations for the Walker basin wilt be revised to address the change in pervious lane cover in the offsite groundwater basin. 2. To achieve defensible compatibility between both the water-balance and the time-step ci:-::rac'ari_t;cs of tha Hydrous, S;ice and HST)F modeling of the embankment ;._rea,_,e f_J',iowir;gci_anges are propcse_: AR 029160 C LTE,.M_', _.. =,Ow Tecr .'.._t_0425,_'_ fins. _: _ o_, ,-, FINAL DRAFT ECY00013902 401 Permit Decision-Making, Sea-Tac Airport Third Runway Floyd & Snider I.e. April 25, 2001 a. Rainfall will be removed from 2006 HSPF models for PERLND 45 (embankment) and the impervious area associated with PERLND 45. Rainfall in these areas…

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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 [...]