TagPollution Control Hearings Board(1532)

Washington State Department of Ecology Water Quality Program Permit Writer’s Manual, Publication Number 92-109, revised January 2001, prepared by Gary Bailey. Covers NPDES permit writing procedures and water quality standards for Washington State. AR 032664, Exhibit-2077.

Two aerial photographic maps of Sea-Tac Airport and surrounding areas, dated 1997 and 2001. The 1997 map is credited to Walker & Associates. Both images show the airport runways, taxiways, and surrounding urban development from an overhead perspective.

Washington Administrative Code (WAC) 173-201A sections 030, 040, 050, and 060 covering water quality standards for surface waters in Washington State, published by the Washington State Department of Ecology. Exhibit 113 (AR017890–AR017892) includes: lake total phosphorus (TP) nutrient criteria by ecoregion (Cascades, Columbia Basin, Willamette, East Cascade Foothills, Blue Mountain) with trophic state classifications (ultra-oligotrophic,

US Army Corps of Engineers Seattle District Second Revised Public Notice (Reference 1996-4-02325, dated 27 December 2000, expiration 16 February 2001) for Department of the Army permit under Section 404 of the Clean Water Act. Port Of Seattle applicant (contact Elizabeth Leavitt) proposes to fill 50 wetlands totaling 18.37 acres and temporarily impact 12 wetlands

An email from Bill Rozeboom of Northwest Hydraulic Consultants summarizing excerpts from previous comment letters regarding the Industrial Wastewater System (IWS) at Seattle-Tacoma International Airport. The comments address concerns about stormwater runoff modeling, basin area diversions affecting Walker Creek and Des Moines Creek base flows, the lining of IWS lagoons and its impact on groundwater

A scientist retained by the Airport Communities Coalition writes to the EPA’s Acting Regional Administrator to dispute the agency’s initial response to a complaint about contaminated fill materials being accepted by the Port of Seattle for the proposed Third Runway project at Seattle-Tacoma International Airport. The letter argues that MTCA Method A Soil Cleanup Levels

A comprehensive stormwater management plan prepared by Parametrix, Inc. for the Port of Seattle’s Seattle-Tacoma International Airport Master Plan Update Improvements. The plan addresses water quantity and quality management standards, hydrologic analysis methodology, existing drainage conditions, and proposed stormwater management strategies. It covers detention requirements, best management practices, and future stormwater quality treatment for airport

A letter from Columbia Biological Assessments to the Washington State Department of Fish and Wildlife reviewing the scientific adequacy of the Joint Aquatic Resources Permit Application (JARPA) for the Miller Creek Project prepared by Parametrix for the Port of Seattle. The reviewer evaluates the proposed 980-foot Miller Creek Relocation Project and instream enhancement projects, raising

Floyd & Snider Inc. meeting notes summary (draft for review) covering 401 Permit negotiations between the Port Of Seattle and Washington State Department of Ecology (Ecology) regarding the Sea-Tac Airport Stormwater Master Plan Update and third runway construction, October 2 through November 29, 2000. Document ECY00009383/AR029061 covers technical issues including detention sizing, basin acreage discrepancies,

Memorandum from Reese P. Hastings and Michael J. Bailey, P.E., Hart Crowser, Inc. to Ralph Wessels, Port Of Seattle, dated December 8, 2000, quantifying potential impacts to wetland resources from development of Borrow Areas 1, 3, and 4 and an on-site haul route for the Third Runway embankment at Sea-Tac Airport. Document J-4978-62 details 17