EXH AR024759: Draft BMP Assessment Existing SDS Subbasins — STIA

A 1999 draft assessment prepared by Parametrix, Inc. for the Port of Seattle outlines best management practices (BMPs) for managing stormwater runoff at Seattle-Tacoma International Airport as part of its Master Plan Upgrades. The document describes how the Port plans to implement water quality treatment measures—including filter strips, bioswales, and wet-vaults—across existing and newly developed stormwater drainage subbasins to meet Washington State Department of Ecology redevelopment requirements. Note that while archived alongside airport planning documents, this report focuses on stormwater and water quality compliance, not noise policy.

Notes

Parametrix, Inc. transmittal letter dated 6/16/99 from project no. 55-2912-01 to Elizabeth Leavitt, Port Of Seattle, transmitting a Draft WQ BMP Assessment for Existing SDS Subbasins at Seattle-Tacoma International Airport (STIA), dated June 11, 1999. The assessment describes stormwater runoff treatment best management practices (BMPs) for the STIA Master Plan Upgrades Water Quality Certification, covering filter strips, bioswales, wet-vaults, stormwater treatment wetlands, and infiltration facilities applied to pollution-generating impervious surfaces (PGIS). References Department of Ecology Stormwater Management Manual for the Puget Sound, King County Surface Water Design Manual, redevelopment requirements, and Third Runway SDS subbasins. CC to Paul Fendi, Scott Tobiason, Tom Hubbard. AR024759–AR024761.

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