March 30, 1994August 2, 2026

Exhibit 721: Record of Communication — Outgoing Call to Kevin Fitzpatrick, Ecology, Regarding WER Work Plan and Mixing Zone Study

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Parametrix Record of Communication (AR 026481–026483), project no. 55-2912-01, dated 3/30/94, by Linda Logan, documenting outgoing call to Kevin Fitzpatrick at Ecology (Ecolog[y]) as follow-up to 3/25/99 meeting. Topics include WER (Waste Effluent Ratio) work plan outline review by Gary Bailey and Randy Marshall, mixing zone study approach review by Norm Glen, AKART requirements at proposed and existing outfalls per Puget Sound Stormwater Manual, NPDES permit, technology standards, and conditions for proceeding to April 1, 1999 meeting. Kevin Fitzpatrick requested waiting until after April 1 meeting before proceeding; discussion covers triangle approach for meeting WQ standards vs. technology standards, assurance that POS (Port of Seattle) must meet AKART at proposed and existing outfalls per Puget Sound Stormwater Manual.

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As the source for federal transportation grants, the Puget Sound Regional Council was charged with developing a system to meet the growing need for commercial aviation. When the search for a second airport failed, they authorized the Port of Seattle to build the Third Runway, with a mandate to develop a noise abatement and mitigation program. In their effort to stop the Third Runway, the ACC argued over every detail of the Port's efforts--including property buyouts and sound insulation. The dispute was meant to be settled by a three member Expert Arbitration Panel. This is their final report. It finds 2-1, that the Port's program was insufficient in several respects. Despite that, funding for the Third Runway was approved by the PSRC, and the 'Port Package' program, proceeded largely unchanged. Expert Arbitration Panel's final decision finding that the Port of Seattle had not shown sufficient reduction in real on-the-ground noise impacts to satisfy noise reduction conditions required for approval of a third runway at Sea-Tac International Airport. The majority decision concluded the Port's noise abatement programs were insufficient despite being impressive in scope.

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