TagThird Runway(1067)

This document presents three-phase back calculations for soil contamination levels at a site, listing various chemical constituents including heavy metals (arsenic, cadmium, chromium, lead, mercury, zinc) and petroleum products (TPH, gasoline, heavy oils). The table compares cleanup criteria from multiple regulatory frameworks including ambient water quality criteria (AWQC), drinking water standards, Model Toxics Control Act (MTCA) methods, and Fish and Wildlife Service ecological screening levels. The calculations were used to evaluate soil remediation thresholds based on leaching potential and ecological risk, with source references including EPA and MTCA SSL tables dated August 2001.

Pre-filed testimony of Sally Nelson, Burien City Council member and former Mayor, submitted on behalf of appellant Airport Communities Coalition (ACC) in PCHB No. 01-160, ACC & CASE v. Dept. of Ecology & Port Of Seattle. Testimony introduces ACC — an interlocal agreement entity comprising Cities of Burien, Des Moines, Federal Way, Normandy Park, Tukwila,

This 2002 staff report from the City of SeaTac and City of Des Moines addresses an appeal by King County Water District #54 challenging an environmental (SEPA) determination related to the Des Moines Creek Basin Restoration Projects, a multi-agency effort to reduce stormwater damage and protect water quality near the Tyee Golf Course. The water district argued that the environmental review failed to adequately address potential impacts to the Highline aquifer, which serves as its sole water supply source. The hearing was scheduled before a Hearing Examiner on October 10, 2002.

Port Of Seattle application filed in King County Superior Court (Case No. 02-2-25658-9SEA) before Judge Bruce Hilyer, seeking direct review by Washington Court of Appeals Division One of the Pollution Control Hearings Board (PCHB) August 12, 2002 Order affirming Ecology’s 401 Certification (Clean Water Act 33 U.S.C. § 1341) for the Sea-Tac Airport Master Plan

ACC (Airport Communities Coalition, composed of Cities of Burien, Des Moines, Federal Way, Normandy Park, Tukwila, and Highline School District) and CASE (Citizens Against Sea-Tac Expansion) petition for judicial review filed in Thurston County Superior Court under Administrative Procedure Act Chapter 34.05 RCW. Challenges PCHB No. 01-160 final Order of August 12, 2002 (finalized September

Port Of Seattle petition for judicial review filed in King County Superior Court (case no. 02-2-25658-9SEA) under RCW 34.05 (Administrative Procedure Act), challenging the August 12, 2002 final order of the Pollution Control Hearings Board (PCHB Case No. 01-160) regarding the 401 Certification issued by Washington Department of Ecology on September 21, 2001 for the

In September 2002, the Port of Seattle filed a lawsuit in King County Superior Court challenging eight of sixteen environmental protections imposed on its Third Runway project by the State Pollution Control Hearings Board (PCHB). The Airport Communities Coalition, which opposed the runway expansion, argued that this legal action proved the Port could not build the Third Runway while complying with environmental and water-quality laws. This appeal marked the third time the Port had used the courts to attempt to weaken environmental safeguards tied to the project.

The Port of Seattle filed a petition in August 2002 asking the Pollution Control Hearings Board to reconsider Condition 8 of its Final Order, which prohibited the use of a soil-testing method called SPLP (Synthetic Precipitation Leaching Procedure) to approve fill material for the Third Runway expansion project at Sea-Tac Airport. The Port argued that banning SPLP made it nearly impossible to find acceptable fill soil, since up to 78% of naturally occurring, uncontaminated soils would fail the Board's strict numeric criteria when tested across multiple constituents. The Port maintained that proper use of SPLP poses no environmental threat to water quality and requested the Board allow its use under specific conditions so the runway project could proceed.

Port Of Seattle petition filed August 22, 2002 with the Pollution Control Hearings Board (PCHB No. 01-160) requesting reconsideration of Condition 8 of the Final Order dated August 12, 2002, which prohibited use of the Synthetic Precipitation Leaching Procedure (SPLP) to authorize importation of fill exceeding modified fill criteria. Appellants are Airport Communities Coalition (ACC)

This August 2002 permit application by the Port of Seattle outlines proposed Master Plan Update improvements at Seattle-Tacoma International Airport, including the construction of a third runway, expanded taxiways, cargo facilities, and terminal upgrades. The documents map both on-site and off-site wetland mitigation areas required to offset environmental impacts, with retaining walls and creek relocations used to minimize effects on wetlands and Miller Creek. The project spans multiple sections of King County, Washington, and includes detailed plans for stormwater detention, runway safety areas, and property acquisition boundaries.