EXH AR017305: Draft 401 Certification — Acceptable Fill Criteria Language for Third Runway Embankment, Port Of Seattle

Notes

Email from Chung K. Yee to Kevin Fitzpatrick (cc: Craig E. Thompson, Ann Kenny), dated June 26, 2001, transmitting draft clean fill criteria language for the 401 Certification related to the proposed Third Runway embankment at Sea-Tac Airport. Fill criteria 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 table. Attached draft (AR017306-AR017307) covers borrow site requirements, fill source documentation per ASTM E1527-00 and E1903-97 Phase I and II Environmental Site Assessment standards, hazardous substances sampling including Total Arsenic, Total Lead, Total Chromium, Total Mercury, Total Zinc, NWTPH-HCID, and minimum sampling schedule. Fill sources limited to state-certified borrow pits, contractor-certified construction sites, and Port Of Seattle-owned properties. Document marked as deliberative, exempt from public disclosure. AR017305.

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