EXH0093017794

PCHBPollution Control Hearings Board of the State of Washington

Sent: Thursday, May 17, 2001 12:26 PM To: Fitzsimmons, Thomas; "Tom Fitzsimmons' Cc: Kenny, Ann Subject: Discussion Paper This "updated" table should assist in discussionswith Port of Seattle staff and managers regarding needed modeling work and the interrelationship of some key issues. As we are presently working to more fully understand the matters addressed herein, please consider this document, and the previous draft sent out this a.m., as "deliberative" and not yet available for public disclosure. I will identify this document "deliberative" as part of my response to the next PD request. Any questions please call. _nk- 1.doc _ AR 017794 I)()li,_I.',,,_ 0769 ... 5/17/0l ' :"' Three Of The Key I_sues Carried Forward From September '00 Discussion Paper • Relatingto the needfor the LowFlowMitigationimpactnumber • Clarifyingexperts/consultantsresponsibilities • Illustratingissueinterrelationships Issue Ecology Expert Lead Relationship Issue I and 2 Relationship Issue 1,2 and 3 " 1. SMP Kelly Whiting Low flow mitigation (LFM) plans The LFM plan, the became a part0fthe SMP in SMP and 1;heNRMP Sto,,,,tt,-r (Ecvc.,t,=, withKc.r_s October/November are dependent upon aMa,'aagerncnt pays) " pl,_ final number showing The low flow impact number has long impact tObase flows. been an issue. In September the Port was looking to procure a water right to The amount of water "augment" flows in DM Creek. needed to offset However, after further analysis, it impacts to base flows, became necessary for the Port to and sizing of SW consider the use of stormwater to ponds and vaults mitigate flows in DM and Miller…
V V