TagACC(1534)

Sand and Gravel Stormwater Pollution Prevention Plan (SWPPP) prepared by Parametrix, Inc. for Port of Seattle, covering Borrow Areas 3 and 4 of the Third Runway Project at Seattle-Tacoma International Airport. Prepared August 2001, approved by Michael Feldman, Director of Aviation Facilities, Port of Seattle. Document checked by Paul Fendt, P.E. and prepared by Julie

Parametrix, Inc. report prepared for Port Of Seattle on cumulative impacts to wetlands and streams from Seattle-Tacoma International Airport Master Plan Update improvements, August 2001 (AR 050792, Exhibit 1267). Covers land use changes in Miller Creek and Des Moines Creek watersheds, wetland inventories, soil survey maps, aerial photograph analysis, stream conditions and fish habitat in

This 2001 User's Guide from the Washington State Department of Ecology describes software workbook tools (MTCASGL and MTCATPH) designed to help calculate soil and ground water cleanup levels under the Model Toxics Control Act. The guide covers installation, technical requirements, and step-by-step instructions for entering site-specific data such as chemical properties, exposure parameters, and hydrogeological characteristics. Note that while this document addresses environmental cleanup standards, it does not appear to be directly related to Sea-Tac Airport noise policy.

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

A declaration by civil engineer William A. Rozeboom, filed with Washington's Pollution Control Hearings Board, raises concerns about the environmental impact of Seattle-Tacoma International Airport's Third Runway construction project. Rozeboom, a stormwater and hydraulics expert retained by the Airport Communities Coalition, warns that the project will reduce low streamflows in Des Moines, Miller, and Walker Creeks during summer months due to increased impervious surfaces and changes to the industrial wastewater system. While the July 2001 Stormwater Management Plan addresses peak flood flows, Rozeboom argues it fails to adequately assess or mitigate the project's impact on low-flow stream conditions.

Administrative Record document AR046206 noting this is a duplicate of an August 2001 document, with reference to Exhibit No. 1267. The document contains no substantive content beyond the cross-reference notation.

Exhibit AR032547 from Washington State Department of Ecology (Ecology), Volume V – Runoff Treatment BMPs, August 2001. Covers phosphorus removal treatment trains (Table 3.1), Enhanced Treatment Menu (Section 3.4) and Basic Treatment Menu (Section 3.5) for stormwater management. Specifies requirements for industrial, commercial, multi-family project sites, arterials and highways discharging to fish-bearing streams or lakes.

This 2001 User's Guide from the Washington State Department of Ecology explains how to use spreadsheet workbook tools (MTCASGL and MTCATPH) to calculate soil and groundwater cleanup levels under the Model Toxics Control Act. The guide covers how to enter site-specific data—such as chemical properties, exposure parameters, and hydrogeological characteristics—to determine safe contamination thresholds. It is intended for environmental cleanup professionals working on hazardous substance remediation in Washington State.

Email from Ann Kenny to Katie Walter (cc: Raymond Hellwig, Erik Stockdale) dated July 31, 2001, transmitting Attachment X: NRMP Plan Set Revisions (AR018266, DOE 8/13/01 0567). The attachment lists prescriptive revision requirements for plan sheets in Appendix A (Miller Creek Relocation and Floodplain Enhancement) and Appendix B (Miller Creek In-stream and Buffer Enhancements), including

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,