TagStormwater(385)

Draft memorandum dated October 5, 2001, from Todd Pollard and Linda Logan to Port Of Seattle project files (project number 556-2625-002), summarizing chemical analysis of STIA receiving stream samples collected January 14, 1999 during a storm event with 86-hour antecedent dry period and 1.18 inches of rainfall. Samples collected from 8 locations including SDS-3, Miller

A October 2001 draft memorandum summarizes chemical analysis results from a January 14, 1999 stormwater sampling event at Seattle-Tacoma International Airport (STIA). Water samples were collected from eight receiving stream locations during a storm and tested for metals (copper, lead, and zinc), organic carbon, hardness, and suspended solids. The key finding was that metal concentrations at all sampling sites fell below Washington State hardness-corrected water quality standards (WAC 173-201A-040).

Port Of Seattle sur reply memorandum filed in Pollution Control Hearings Board cases No. 01-133 and No. 01-160, Airport Communities Coalition (ACC) v. Department of Ecology and Port Of Seattle. Addresses ACC’s motion for stay of the amended §401 Certification for STIA, arguing: (1) WAC 173-225-030 requires public notice only for new applications, not amendments;

Declaration of Edward O’Brien, Washington State Department of Ecology Water Quality Program employee since 1979, filed in PCHB No. 01-133 (Airport Communities Coalition v. State of Washington Department of Ecology and Port of Seattle). O’Brien testifies regarding the 1992 Stormwater Management Manual for Puget Sound, the 1999 Draft Manual, the final September 27, 2001 western

Declaration of Kevin Fitzpatrick, Section Manager at Washington Department of Ecology (Ecology) Northwest Regional Office Water Quality Program, filed in PCHB No. 01-133, Airport Communities Coalition (ACC) v. State of Washington Department of Ecology and Port Of Seattle. Fitzpatrick addresses ACC’s contentions that Port Of Seattle stormwater discharges from SeaTac International Airport (STIA) violate state

This document is a legal declaration by Dr. Peter Willing submitted in support of the Airport Communities Coalition's motion for a stay against the Port of Seattle's water quality certification for construction of a third runway at Sea-Tac Airport. Dr. Willing, a water treatment and water quality expert, argues that the Port's plan to augment low summer stream flows using stored stormwater is an unproven concept lacking necessary design details, manufacturer specifications, or documented precedent. He contends that neither the Department of Ecology nor the Pollution Control Hearings Board had sufficient information to evaluate the plan, leaving serious unresolved concerns about potential violations of Washington State water quality standards.

Declaration of Edward O’Brien, Washington Department of Ecology Water Quality Program employee since 1979, filed in PCHB No. 01-133 (Airport Communities Coalition v. State of Washington Department of Ecology and Port Of Seattle). O’Brien describes his familiarity with the 1992 Stormwater Management Manual for Puget Sound, the 1999 Draft Manual, and the final September 27,

Declaration of Kelly Whiting, Senior Engineer at King County Department of Natural Resources, filed in Pollution Control Hearings Board case PCHB No. 01-133, Airport Communities Coalition v. State of Washington Department of Ecology and Port Of Seattle. Whiting details his review of the Port of Seattle’s Comprehensive Stormwater Management Plan (SMP) and Low Flow Impact

Port Of Seattle’s memorandum filed October 1, 2001 opposing Airport Communities Coalition (ACC) motion for stay in PCHB Case No. 01-133 before the Pollution Control Hearings Board, State of Washington. Filed by Foster Pepper & Shefelman PLLC. Document AR 008787-008789 addresses wetland mitigation, low flow mitigation plan, stormwater water right permit requirements, fill acceptance criteria,

Declaration of Paul S. Fendt (Parametrix, Inc.) filed in PCHB No. 01-133, Airport Communities Coalition v. Department of Ecology and Port Of Seattle. Fendt, a stormwater engineer with 18+ years experience, addresses stormwater management and low flow mitigation for the Sea-Tac Airport Master Plan Update (MPU). Covers hydrology of Miller Creek watershed (8.1 sq mi,