EXH 446: Prelim Draft 401 Water Quality Cert Third Runway — Internal Deliberative Email

In July 2001, Washington State Department of Ecology staff circulated a confidential preliminary draft of a Section 401 Water Quality Certification related to the construction of a third runway at Seattle-Tacoma International Airport. The draft certification, addressed to the Port of Seattle, confirmed that the proposed runway project complied with applicable provisions of the Clean Water Act and the Washington State Coastal Zone Management Program, subject to stormwater and other water quality conditions. The document was still under internal review, with sections on stormwater management and low-flow conditions pending further input before finalization.

Notes

Exhibit 446 (AR 022790–022792). Email from Ann Kenny, Washington State Department of Ecology, dated July 29, 2001, transmitting a preliminary draft Section 401 Water Quality Certification (WQC) to the 401 Team including staff from Ecology and the Washington Attorney General’s Office (ATG). The draft certification covers U.S. Army Corps of Engineers Public Notice 1996-4-02325 for construction of a Third Runway and related projects at Seattle-Tacoma International Airport (STIA) in the Miller, Walker, and Des Moines Creek watersheds and in wetlands at STIA and at the Auburn mitigation site, King County, Washington. The draft certifies compliance with Clean Water Act Sections 301, 302, 303, 306, and 307, and references Coastal Zone Management Act Section 307(e)(3). Conditions reference Hydraulic Project Approval (WDFW), NPDES permit #WA-002465-1, and integration with the 402 permit. Addressee is Ms. Elizabeth Leavitt, Port of Seattle. Document marked deliberative, do not disclose.

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