TagLora Lake(22)

A 2012 presentation to the Highline Forum provides an update on the Lora Lake Apartments cleanup site near Sea-Tac Airport, where dioxin contamination is being addressed through a combination of excavation and capping. The Port of Seattle submitted a draft Remedial Investigation/Feasibility Study to the Washington State Department of Ecology, which was reviewing the document and planning to issue it for public comment before selecting a final cleanup action. The site was not found to be contributing significant amounts of dioxin to the nearby Miller Creek.

This Summer 2009 edition of Air Mail, published by the Port of Seattle for Sea-Tac Airport neighbors, covers the planned demolition of the former Lora Lake Apartments near the third runway, where soil contamination required cleanup under an Agreed Order with the Washington Department of Ecology. The newsletter also announces an upcoming Part 150 Noise and Land-Use Compatibility Study to assess real-world noise conditions, including the impact of the new third runway, and recognizes Virgin America and Federal Express with 2009 Fly Quiet Awards for minimizing aircraft noise. Additional community updates include Sea-Tac Airport scholarships awarded to Highline School District graduates and an environmental curriculum program at Aviation High School.

The Highline Wetlands Aerial Photo Album, compiled in September 2003, presents a collection of aerial photographs documenting wetlands, lakes, and waterways in the Sea-Tac Airport area of Washington State. The album covers locations including Miller Creek, Walker Creek, Lake Burien, Angle Lake, and other water resources affected by the proposed Third Runway construction at Seattle-Tacoma International Airport. An accompanying map illustrates the runway's projected impact on local water resources, identifying proposed fill areas and the third runway site relative to surrounding communities such as Burien, Normandy Park, and Des Moines.

This document outlines wetland mitigation calculations for the Vacca Farm site, detailing compensation actions such as wetland restoration and enhancement across various locations including Lora Lake and prior converted croplands. Adjustments were made to credit acreages based on state ecology findings and documentation gaps; for example, the 6.60-acre converted cropland credit was reduced to 3.30 acres because the state identified those areas as existing wetlands requiring enhancement ratios rather than restoration ratios. In total, the site's original 10.48 credit acres were adjusted down to 5.61 acres after accounting for these regulatory and documentation considerations.

Draft map AR035006 showing restrictive covenants on the west side of Seattle-Tacoma International Airport (northern section). Features include Relocated Miller Creek, Lora Lake, Miller Creek/Lora Lake/Vacca Farm Wetland and Floodplain Mitigation Area, Miller Creek Mitigation Area, Toe of Fill boundaries, Relocated S. 154th Place, and multiple 60-foot ROW designations (30 feet each side from center

Attachment G table detailing wetland acreage impacts and mitigation credits by wetland function for in-basin and Auburn sites, related to the Sea-Tac Airport or associated project. Functions covered include Resident/Anadromous Fish (8.6 acres impacted), Passerine Birds (14.9 acres), Waterfowl (1.9 acres), Amphibians (9.8 acres), Small Mammals (13.2 acres), Exports Organic Matter (10.9 acres), Ground Water

Attachment D table summarizing wetland mitigation credit for Seattle-Tacoma International Airport Master Plan Update improvements. Documents in-basin mitigation (102.27 acres, 29.80 credit) and out-of-basin mitigation (65.38 acres, 42.91 credit) for a total of 167.65 mitigation acres and 72.71 total credit. In-basin mitigation includes wetland restoration at Vacca Farm (credit ratio 1:1), wetland enhancement at Vacca

Exhibit 175 (AR018443) summarizes wetland mitigation credit for Sea-Tac Airport Master Plan Update improvements. Tables detail in-basin mitigation (102.27 acres, 29.80 credit) and out-of-basin mitigation (65.38 acres, 42.91 credit) for a total of 167.65 acres and 72.71 mitigation credits. Specific mitigation sites include Vacca Farm, Miller Creek Wetland and Riparian Buffer, Tyee Valley Golf Course,

Email chain (AR018498–AR018499) dated July 19, 2001, from Erik Stockdale (likely Washington State Department of Ecology) to Joan Marchioro (ATG) and Andy McMillan, forwarding a message from Jim Kelley of Parametrix, Inc. The judge ruled in favor of Port Of Seattle in the Parcel 92 condemnation case, finding that prior converted croplands were wetlands under