TagACC(1524)

An email from Kelly Whiting of King County Department of Natural Resources to Ann Kenny summarizing recommendations from a lead stream ecologist regarding proposed stream mitigation measures. The ecologist’s key concerns include evaluating mitigation against existing stream hydrographs to avoid disrupting biological processes, prioritizing frequent low-flow conditions over extreme drought scenarios, and addressing water quality

This document is Volume 2 of 3 of the Port of Seattle’s memo opposing ACC’s motion for stay, containing the Declaration of Paul S. Fendt under PCHB No. 01-133. It includes a preface to the Comprehensive Stormwater Management Plan (SMP) for the Seattle-Tacoma International Airport Master Plan Update Improvements, dated July 2001. The preface explains

This table summarizes drainage area data for Miller Creek, Walker Creek, and Des Moines Creek subbasins at Sea-Tac International Airport (STIA), comparing 1994 baseline and 2006 future condition impervious and pervious acreages. It documents the increase in impervious area across all drainage basins, with a total increase of 305.7 acres. The data was compiled as

Section 5 of the Sea-Tac Airport Comprehensive Stormwater Management Plan discusses proposed Master Plan Update (MPU) improvements requiring stormwater management, including land use changes and impervious surface calculations. The document covers the Airport Surveillance Radar relocation, GIS-based analysis of pervious and impervious areas, and references to HSPF modeling. MPU improvements are organized into four phases

Table A-3 from the Sea-Tac Airport Comprehensive Stormwater Management Plan lists projects requiring stormwater management as part of the STIA Master Plan Update Improvements. The table details construction timelines, whether permanent stormwater detention was provided, facility names, and comments on impervious surface conditions for runway, taxiway, terminal, and landside improvement projects. Projects span from the

This document describes the Integrated Wetland System (IWS) configuration for the Sea-Tac International Airport Master Plan Update, including land use, storage volumes, treatment rates, and discharge capacity. It presents analysis showing zero overflows occur under proposed IWS conditions when simulated over a 50-year KCRTS period of record. The document also notes a historical overflow event

A stormwater monitoring report from STIA Construction dated June 28, 2001, documenting site observations at multiple construction locations including Third Runway Embankment Phase 4, detention ponds, and other construction sites. The report records rainfall data, turbidity levels, pH measurements, and sheen observations at various monitoring points. Notes indicate conditions such as no discharge, pumping status,

This document records stormwater monitoring data collected on June 28, 2001 at the STIA (Sea-Tac International Airport) construction site by samplers K. Ludwa and J. Brandt. The monitoring covers multiple construction phases and locations including embankment, ASR relocation, and runway project areas. Measurements include turbidity, pH, and sheen observations, with notes on discharge conditions at

A draft Declaration of Restrictive Covenants by the Port of Seattle establishing land use restrictions on the Tyee Valley Golf Course Mitigation Area in King County, Washington. The declaration is required by a Washington State Department of Ecology Order and a U.S. Army Corps of Engineers Section 404 Permit related to mitigation activities associated with

Final draft meeting notes prepared by Rachel McCrea of Floyd & Snider Inc. for 401 Permit Decision-Making technical meetings on June 25 and June 27, 2001, regarding Sea-Tac International Airport Third Runway. Attendees included Ann Kenny and John Drabek (Dept. of Ecology), Kelly Whiting (King County), Keith Smith (Port of Seattle), Paul Fendt and Tom