Notes
Port of Seattle final document establishing soil fill quality criteria for the Third Runway embankment construction, covering approximately 820,000 cubic yards of fill material for 1998 first-phase construction. Specifies three fill borrow material groups (Group 1, Group 2, Group 3) with sieve size gradation requirements (6″, 3″, 3/4″, U.S. No. 4, U.S. No. 40, U.S. No. 200), MTCA Method A contamination standards, certification requirements from licensed geotechnical engineers and environmental professionals, and sources including state-certified borrow pits and contractor-certified construction sites. Details monitoring procedures including independent soil technicians, in-place density testing at one test per 60 truckloads, and quarterly reporting to Washington Department of Ecology. AR019658, Exhibit 285.