EXH0111017886

5808 Lake Wast6ngton 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_Street, Suite 200 BotheR, Washington 98011 HNTB 600 108thAvenue NE, Suite 400 Bellevue, Washington 98004 Pacific Groundwater Group 2377 Eastlake Avenue East Seattle, Washington 98102 December 2001 556-2912-001 (28B) AR 017886 - Sections 6.2.1 and 7.7.5 of the Comprehensive Stormwater Management Plan, Master Plan Update Improvements, Seattle-Tacoma International Airport (SMP; Parametrix, Inc. 2000a, 2001a). The Clean Water Act Section 401 water quality certification was issued by the Department of Ecology on August 10, 2001, and amended on September 21, 2001, subsequent to the submittal of the July 2001 Low Flow Analysis/Flow Impact Offset Facility Proposal (Water Quality Certification #1996-02325 [Amended - 1]). The amended certification required the submittal of a revised Low Flow Analysis/Flow Impact Offset Facility Proposal addressing a number of issues listed in Section I of the amended certification. ;.dditional model runs were required to address some of these issues. During the additional modeling, some errors in d_t- handling were detected. While corrections of these errors do not change the modeling approach, the underlying assumptions, or the calibration, they do impact the results of the modeling analysis. Discussions were held between the Port, its consmltants, Ecology, and King County to disenss the errors and their resolution, which are summarized below: 1. Different models were used to simulate different…

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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 [...]