EXH1308052659

Summer Low Flow Impact Offset Facility Proposal ,_ Porl of Seaffie December2001 Volume 1 Parametrix, Inc. (Includes Main Text and Appendices B through J) AR 052660 LOW STREAMFLOW ANALYSIS AND SUMMER LOW FLOW IMPACT OFFSET FACILITY PROPOSAL SEATTLE-TACOMA INTERNATIONAL AIRPORT MASTER PLAN UPDATE IMPROVEMENTS Prepared for PORT OF SEATTLE Scattl_-TacomaInternationalAirport 17900 InternationalBoulevard, Suite 402 Seattle, Washington 98188 Preparedby PARAMETRIX,INC. 5808 Lake Washington Blvd. NE, Suite 200 Kirkland,Washington 98033-7350 Aqua Terra Consultants 6140 Capital Blvd. SE, Suite D Tumwater, Washington 98501 Earth Tech, Inc. 10800 NE 8thStreet, Seventh Floor Bellevue, Washington 98004 Foster Wheeler Environmental Corporation 12100 NE 195e_Sweet, Suite 200 Bothell, Washington 98011 HNTB 600 108thAvenue N-E, Suite 400 Bellevue, Washington 98004 Pacific Groundwater Group 2377 Eastlake Avenue East Seattle, Washington 98102 December 2001 556-2912-001 (28B) AR 052661 CERTIFICATE OF ENGINEER The technicalmaterialanddatacontainedin thisdocumentwere preparedunderthe supervisionand directionof theundersigned,whose seal, as a professionalengineerlicensedto practiceas such, is affixedbelow. _'-,_:..-%.--_.._.. _-e, ._ _z_ _, , ,,._._,.. /._-. PaulS.F_ndt,P.E. Low Streamflow Analy_i: December 2001 8TIA Ma#ter Plan Update Improvements 556-2912.00108B) AR 052662 TABLE OF CONTENTS Pa_e EXECUTIVE SUMMARY .................................................................................................................. vi 1. INTRODUCTION ................................................................................................................ 1-1 1.1 PURPOSE ................................................................................................................. 1-1 1.2 ORGANIZATION OF REPORT ............................................................................. 1-1 1.3 RELATIONSHIP TO OTHER DOCUMENTS ...................................................... 1-1 1.4 PROJECT DESCRIPTION ...................................................................................... 1-3 2. LOW STREAMFLOW ANALYSIS .................................................................................... 2-1 2.1 APPROACH ............................................................................................................. 2-1 2.1.1 Introduction .................................................................................................. 2-1 2.1.2 Determination of Summer Low-Stre.amflow Period ................................... 2-I 2.1.3 Existing Summer Low Su'eamflows ............................................................ 2-2 2.2 HSPF MODEL C._T.rRRATION ............................................................................. 2-2 2.2.1 Overall Model .............................................................................................. 2-2 2.2.2 Low-How Review ........................................................................................ 2-2 2.3 EMBANKMENT MODELING…

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PSCAA Advisory Council Meeting Agenda
Add to CalendarMWednesday Mar 11, 9:00am - 11:35am
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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 [...]