Notes
An internal email from Chung K. Yee to Kevin Fitzpatrick, with a draft document attached, discussing fill criteria language for a 401 water quality certification related to the proposed Third Runway embankment at Sea-Tac Airport. The fill criteria are based on Method A table, 3-phase model protection of ground water and surface water, PQL, natural background in Puget Sound, and Terrestrial Ecological Evaluation. The draft outlines requirements for borrow site documentation, fill sources, environmental assessments, and soil sampling/analysis procedures.
