TagPort Of Seattle(2403)

Draft Water Quality Certification #1996-4-02325, pages 16-17 of 23, dated August 2001, issued by Washington State Department of Ecology regarding Port Of Seattle Seattle-Tacoma International Airport (STIA). Covers operational stormwater requirements including the approved Comprehensive Stormwater Management Plan (CSMP) Volumes 1-4 December 2000 as revised July 2001, retrofitting of stormwater management facilities, discharge of operational

Letter dated July 31, 2001 from Keith R. Smith, Water Resources Manager at Port Of Seattle, to Ms. Ann E. Kenny at the Washington State Department of Ecology Northwest Regional Office (Bellevue, WA 98008-5452), transmitting conceptual drawings for the proposed Flow Impact Offset Facility at Seattle-Tacoma International Airport. Drawings relate to reserved stormwater release storage,

This July 2001 draft document outlines clean fill criteria for the Port of Seattle's Third Runway construction project at Sea-Tac Airport, requiring the Port to submit environmental assessment documentation to the Washington Department of Ecology before placing any fill material. It specifies that fill may only come from state-certified borrow pits, contractor-certified construction sites, or Port-owned properties, while prohibiting the use of any contaminated or remediated soils. The document details testing and sampling requirements, including review of contamination records and analysis of hazardous substances, to ensure that no toxic materials are introduced into wetlands or state waters during construction.

In July 2001, Washington State Department of Ecology staff circulated a confidential preliminary draft of a Section 401 Water Quality Certification related to the construction of a third runway at Seattle-Tacoma International Airport. The draft certification, addressed to the Port of Seattle, confirmed that the proposed runway project complied with applicable provisions of the Clean Water Act and the Washington State Coastal Zone Management Program, subject to stormwater and other water quality conditions. The document was still under internal review, with sections on stormwater management and low-flow conditions pending further input before finalization.

Email from Ann Kenny (Ecology) dated July 29, 2001, to the 401 WQC team — including Raymond Hellwig, Kevin Fitzpatrick, John Drabek, Ching-Pi Wang, Erik Stockdale, Joan Marchioro (ATG), Tom Young (ATG), Katie Walter, and Kelly Whiting, cc Jeannie Summerhays — transmitting a preliminary deliberative draft 401 Water Quality Certification (WQC) for the Third Runway

Letter dated July 25, 2001 from Keith R. Smith, Water Resources Manager, Port Of Seattle, to Ann E. Kenny, Washington Department of Ecology Northwest Regional Office, clarifying the Low Streamflow Analysis and Summer Low Flow Impact Offset Facility Proposal for Seattle-Tacoma International Airport. Corrections address: embankment recharge calculation using ‘flat outwash grass’; non-contiguous groundwater contributions

Final meeting notes from July 24, 2001 conference call on 401 Permit Decision-Making for Sea-Tac International Airport Third Runway, Low Flow Analysis. Prepared by Kate Snider, Floyd & Snider Inc. Attendees included Ann Kenny (Dept. of Ecology), Kelly Whiting (King County), Keith Smith (Port of Seattle), Paul Fendt (Parametrix), Joe Brascher (Aquaterra). Discusses Port of

Hart Crowser report (project 4978-44) prepared for HNTB documenting installation and verification results for Work Area 2 stone column test areas at the Third Runway Embankment Phase 4, SeaTac, Washington. Authored by Barry S. Chen, Ph.D., P.E. (Senior Associate Geotechnical Engineer) and John P. Laplante (Senior Staff Geotechnical Engineer). Report covers four test areas with

Letter dated July 23, 2001 from Port Of Seattle to Ann E. Kenny at Washington State Department of Ecology Northwest Regional Office regarding Low Streamflow Analysis and Summer Low Flow Impact Offset Facility Proposal for Seattle-Tacoma International Airport. Covers summer low streamflow impacts in Des Moines Creek, Miller Creek, and Walker Creek from airport Master

Port of Seattle letter dated July 23, 2001 to Ann E. Kenny, Washington State Department of Ecology, Northwest Regional Office, summarizing low streamflow impact analysis and flow impact offset facility proposal for Seattle-Tacoma International Airport Master Plan Update projects. Prepared by Parametrix, Inc. Analysis covers summer low streamflow impacts to Des Moines Creek, Miller Creek,