TagStormwater(373)

This 2001 legal declaration by civil engineer William Rozeboom, submitted to Washington's Pollution Control Hearings Board, challenges the Port of Seattle's stormwater and low-flow mitigation plans for the proposed third runway at Sea-Tac Airport. Rozeboom argues that the Port's analysis underestimates low-flow impacts on local streams and that the proposed underground storage vaults—equivalent in volume to more than seven Olympic-size swimming pools—are undersized. The declaration also disputes claims by Port engineer Paul Fendt that the water volumes involved are small and that mitigation can be easily adjusted.

This legal declaration by stormwater engineer Paul S. Fendt, filed before Washington's Pollution Control Hearings Board, addresses the Port of Seattle's Master Plan Update and its potential impacts on local stream flows in Miller, Walker, and Des Moines Creeks near Sea-Tac Airport. Fendt explains the use of the HSPF hydrologic model and a 2-year, 7-day low flow standard to assess and mitigate summer streamflow impacts resulting from planned airport expansion projects. He concludes that revised analysis shows no significant changes to previously calculated low flow impacts.

Third Declaration of Paul S. Fendt (Parametrix, Inc.) filed in PCHB No. 01-160, Airport Communities Coalition v. Department of Ecology and Port Of Seattle. Fendt, licensed PE with 18+ years stormwater engineering experience, addresses calculation of summer low streamflow impacts on Miller Creek, Walker Creek, and Des Moines Creek for the Port Of Seattle Master

Respondent State of Washington Department of Ecology’s revised preliminary witness and exhibit list filed before the Pollution Control Hearings Board in PCHB No. 01-133 and 01-160, Airport Communities Coalition v. Ecology and Port Of Seattle. Lists 11 Ecology witnesses including Ann Kenny, Erik Stockdale, Kevin Fitzpatrick, Dave Garland, and others from Ecology Northwest Regional Office

Natural Resource Mitigation Plan for Seattle-Tacoma International Airport (STIA) Master Plan Update, November 2001, document reference 556-2912-001 (03). Table 1.3-1 lists all proposed Master Plan Update improvement projects including: third parallel runway 16X/34X (8,500 ft), Runway Safety Areas (RSAs) for 16R/34L and 16L/34R, South 154th Street relocation, South Aviation Support Area (SASA) for cargo/maintenance, embankment

A study at Seattle-Tacoma International Airport found that galvanized metal roofing on cargo buildings was the primary source of elevated zinc levels in the airport's stormwater runoff, which drains into salmon-bearing streams including Miller Creek and Des Moines Creek. Researchers used whole effluent toxicity (WET) testing and source-tracing methods to identify the problem, focusing on one outfall (SDN1) that consistently showed higher zinc concentrations and toxic effects on aquatic organisms. The findings prompted the Port of Seattle to investigate remediation options as part of its stormwater pollution prevention program under its NPDES permit.

Washington State Department of Ecology reply brief filed before the Pollution Control Hearings Board (PCHB No. 01-160) opposing Airport Communities Coalition’s (ACC) arguments against Ecology’s motion to strike attorney-client privileged documents. Ecology argues the privilege is not ‘at issue’ under Pappas v. Holloway (114 Wn.2d 198) and Hearn v. Rhay (68 F.R.D. 574), and that

ACC (Airport Communities Coalition) files opposition to Ecology’s Motion to Strike attorney-client privileged documents in PCHB Case Nos. 01-133 and 01-160, concerning Port Of Seattle’s third runway application. ACC argues the April 3, 2001 Ray Hellwig memorandum and handwritten notes were not inadvertently disclosed but were intentionally released by Ecology in response to a public

Airport Communities Coalition (ACC) preliminary list of legal issues, witnesses, and exhibits filed with the Washington State Pollution Control Hearings Board (PCHB No. 01-133 and 01-150) against the Department of Ecology and Port Of Seattle regarding the Sea-Tac Third Runway Section 401 Water Quality Certification. Issues include: reasonable assurance of compliance with state water quality

Declaration by Dr. Peter Willing (Ph.D.) filed October 10, 2001, in support of Airport Communities Coalition (ACC) sur-reply on motion for stay before the Washington Environmental Pollution Control Hearings Board (PCHB), Case Nos. 01-133 and 01-160. Challenges Port Of Seattle’s Section 401 Certification No. 1996-4-02325 and CZMA concurrency statement (issued August 10, 2001, reissued September