EXH1154043961

- A Comparison of Pacific Groundwater and Hart Crowser Fill Modeling Approaches ..... B Estimates of Miller Creek Streamflow Effects as Predicted with Slice Model C Estimates of Historic Water Withdrawal in Miller Creek Buyout Area D HSPF Model Input and Results for Low Streamflow Conditions PortofSeattle i Seattle-Tacoma Airport Master Plan Update _. Low StreamflowAna_$U _.j '_4281601 _'rREAMFLOW ANAL YSIS.D0C AR 043963 LIST of TABLES Page Table 1: Recorded Average Flows August and September ............................................................ 1 Table 2: HSPF Model Streamflow in August and September for 1994 Land Use Conditions ...... 2 Table 3: Seven-Day Low Flows (cfs) Per HSPF Model of 1994 Land Use Conditions ................. 3 Table 4: HSPF Model Streamflow in August and September For 2006 Land Use Conditions ...... 3 Table 5: Seven-Day Low Flows (cfs) Per HSPF Model of 2006 Land Use Conditions ................. 3 Table 6: Estimates of Miller Creek Streamflow Effects from Fill Infiltration Discharge _............. 8 Table 7: Estimates of Walker Creek Streamflow Effects from Fill Infiltration Discharge I ........... 9 Table 8: Non-Hydrologic Changes In Summer Streamflow (PGG Report) ................................... 9 Table 9: Miller Creek Reserved Stormwater Release Rate Determination ................................... 19 Table 10: Des Moines Creek Reserved Stormwater Release Rate Determination t ...................... 19 Table I I : Summary of Miller Creek Streamflow Effects _............................................................ 26 Table 12: Summary of Walker Creek Streamflow Effects _.......................................................... 27 Table 13: Summary of Des Moines Creek Streamflow Effects x................................................... 28 LIST of FIGURES Page Figure 1: Annual Flow Duration Curves for A…

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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 [...]