TagEcology(788)

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.

Deliberative memorandum dated August 1, 2001 from Katie Walter (KLW@shanwil.com) to Ann Kenny, Washington State Department of Ecology, re Draft 401 Conditions for Auburn Mitigation Site revisions. Covers culvert placement issues in revised grading plan (June 28, 2001) at northwest corner and south central portion of site, drainage swale, maintenance pathway, and southwestern basin. Performance

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,

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.

Deliberative, do-not-disclose email from Ann Kenny (Washington State Department of Ecology) dated July 29, 2001, transmitting a preliminary draft 401 Water Quality Certification (WQC) for the Port of Seattle Third Runway construction at Seattle-Tacoma International Airport (STIA) in the Miller, Walker, and Des Moines Creek watersheds. The draft WQC references JARPA application dated October 25,

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