TagPollution Control Hearings Board(1532)

Published opinion filed November 15, 1999, Washington Court of Appeals Division One, No. 43100-5-I. Cities of Des Moines, Burien, Federal Way, Normandy Park, Tukwila, Highline School District No. 401, and Airport Communities Coalition (appellants) v. Puget Sound Regional Council, Port Of Seattle, and Commissioners of the Port Of Seattle (respondents). Consolidated with related cases including

Hart Crowser subsurface conditions data report (J-4978-16) prepared for HNTB and Port Of Seattle, dated November 12, 1999, regarding Phase 3 Fill for the Third Runway embankment at Seattle-Tacoma International Airport. Report covers generalized geologic and subsurface soil conditions, hydrogeologic conditions, field explorations (auger borings HC99-B61, HC99-B63, HC99-B65, HC99-B71, HC99-B73), test pits HC99-TP26 through HC99-TP44,

Parametrix, Inc. prepared this Supplemental Airport Site Wetland and Stream Analysis for Port Of Seattle, dated November 12, 1999 (AR 043120). The report analyzes wetland and stream conditions at three supplemental airport candidate sites — Arlington, Lake Sawyer, and Frederickson — comparing 1994 MSA study findings with 1998 field-verified wetland boundary data. Includes tables comparing

Addendum to the Des Moines Creek Regional Capital Improvement Project Preliminary Design Report, prepared November 1, 1999 by King County Capital Improvement Project Design Team for the Des Moines Creek Basin Committee. Prepared for Tim Heydon (City of Des Moines), Tom Hubbard (Port Of Seattle), David Masters (King County), Don Monaghan (City of SeaTac), and

A draft short list of resolved and unresolved issues related to the Sea-Tac Airport expansion project as of October 1999. The document covers 401/402 stormwater issues, water quality concerns, wetland mitigation, and various permitting and legal matters. It outlines outstanding questions regarding compliance with Ecology and King County stormwater manuals, the role of the Regional

Letter and final laboratory analysis report (Case File PAR025-18) dated October 28, 1999 from Aquatic Research Incorporated Laboratory Director Steven Lazoff to Ken Ludwa at Parametrix Incorporated, covering water samples received October 11, 1999 from Port Of Seattle. Sample ID POS NEPL analyzed for TSS (2.3 mg/l), NWTPH-Dx diesel (<0.05 mg/l), motor oil (<0.10 mg/l),

Dissolved Oxygen Deicing Study prepared by Cosmopolitan Engineering Group for Port Of Seattle Sea-Tac International Airport (AR042698, August 1999), examining impacts of de-icing agents from airport stormwater runoff on Miller Creek and Des Moines Creek, including BOD5 discharges to NW Ponds and Lake Reba. Accompanied by Washington State Department of Ecology (NWRO) response letter dated

The Washington State Department of Ecology reviews the draft final Dissolved Oxygen De-Icing Study submitted by the Port of Seattle regarding impacts of de-icing agents from airport stormwater runoff to Miller and Des Moines Creeks. The letter outlines several concerns including improper water quality classification, insufficient sample size, inadequate sampling design, and problematic correction factors

An internal email from Tom Luster at Washington State Department of Ecology documenting a meeting with Paula regarding the Port of Seattle’s SeaTac Airport expansion project and water quality standards compliance. Luster explains his position that reasonable assurance of meeting water quality standards cannot be provided given inadequate stormwater BMPs, lack of flow augmentation mitigation,

Hart Crowser memorandum from Michael Bailey, Allen Jones, and Doug Lindquist to Jim Thomson (HNTB), dated October 8, 1999, presenting probabilistic seismic hazard analysis (PSHA) results for the Sea-Tac Airport Third Runway project (J-4978-14). Reports peak horizontal acceleration (PHA) values for common design return intervals: 0.16 g (72-year), 0.36 g (475-year), 0.47 g (975-year), and