Notes
Memo dated November 13, 2000 from Roger Nye to John Wietfeld and Ching-Pi Wang regarding deficiencies in the Port Of Seattle’s map/list of potential contaminated sites at Sea-Tac Airport under the Agreed Order. Identifies four issues: failure to identify historical solvent sources (including aircraft washing fluids containing 14% chlorinated solvents drained to outfalls or stored in unlined lagoons, with PCE contamination found at a settling pond near the former United Airlines hangar); reliance on historical facilities rather than historical operations (excluding hangars and the Olympic tank farm); omission of major former fueling facilities identified in cleanup and environmental investigation reports; and failure to address potentially significant contaminant sources outside the AOMA per the Responsiveness Summary. References AOMA (Airport Operating and Maintenance Area), particle tracking groundwater modeling methodology, drinking water wells, surface water receptors, and citizen-researched Ecology archives. Administrative Record numbers AR 023669–023670.