TagStormwater(385)

Pre-filed direct testimony of Keith Smith submitted in Pollution Control Hearings Board (PCHB) case No. 01-160, Airport Communities Coalition (ACC) and Citizens Against Sea-Tac Expansion (CASE) v. Department of Ecology and Port Of Seattle. Testimony addresses stormwater sampling under the Port’s NPDES permit, monitoring locations, water quality criteria violations, hardness data accuracy, deicing chemicals, IWS

Table 4 Stormwater Quality Comparators comparing water quality data across multiple study sites including NURP 1983, BURP 1984, Metro 1982, Bellevue 1995, Highway Runoff 1981, Portland NPDES 1993, and STIA Landside and Airfield locations. Parameters measured include pH, TPH, fecal coliforms, BOD5, TSS, turbidity, glycols, copper (Cu), lead (Pb), and zinc (Zn) in units of

This declaration by stormwater engineer Paul S. Fendt, filed in a Washington State Pollution Control Hearings Board case, explains how Sea-Tac International Airport's Master Plan Update will increase impervious surfaces and alter stormwater runoff into Miller, Walker, and Des Moines Creeks. The document outlines mitigation measures, including 344.1 acre-feet of new detention storage and controlled low-flow water releases, to offset increased peak flows and reduced summer stream flows caused by airport expansion. It provides technical background on the affected watersheds and the Port of Seattle's stormwater management strategy.

Direct testimony of Kelly Whiting, Engineer III at King County Department of Natural Resources and Parks, submitted on behalf of the Washington State Department of Ecology in PCHB Case No. 01-160. Appellants are Airport Communities Coalition (ACC) and Citizens Against Sea-Tac Expansion (CASE); respondents are Ecology and Port Of Seattle. Whiting reviewed the Port of

Direct testimony of Ed O’Brien, Environmental Engineer 4 at Washington State Department of Ecology Water Quality Program, submitted before the Pollution Control Hearings Board (PCHB) in case No. 01-160. Appellants are Airport Communities Coalition (ACC) and Citizens Against Sea-Tac Expansion (CASE) vs. State of Washington Department of Ecology and Port Of Seattle. O’Brien describes his

Fax dated 8/20/02 from Sandra Manning (Washington State Department of Ecology, Shorelands and Environmental Assistance Program) to Tom Young transmitting a signed stormwater agreement. Includes WQP Policy 1-22 (effective July 15, 2001), titled ‘Adopting Supplemental Treatment as a Best Management Practice and Defining Compliance with Water Quality Standards for Stormwater Impacts for the Water Quality

This document chronicles the Port of Seattle's second Section 401 Clean Water Act permit application, submitted in September 1999, which was on the verge of being denied by the Washington State Department of Ecology due to multiple shortcomings related to wetlands and water quality. On September 28, 2000, a private, unannounced meeting was held between Port, Ecology, and Governor's office officials, after which the Port strategically withdrew its application to avoid a formal denial. A series of closed-door negotiating sessions followed in October 2000, none of which were publicly announced, raising concerns about political influence and lack of transparency in the permitting process for Sea-Tac Airport expansion.

This document is a legal filing from the Airport Communities Coalition (ACC) submitted to Washington State's Pollution Control Hearings Board in a case against the Washington State Department of Ecology and the Port of Seattle. It lists technical documents and studies relied upon by ACC's expert witnesses, covering topics such as retaining wall and slope alternatives affecting Miller Creek, seismic analysis of reinforced soil walls, and stormwater runoff management near Sea-Tac Airport. The referenced materials include engineering evaluations, water quality research, and stormwater best management practice guidelines relevant to the airport's expansion impacts.

Direct testimony of Kelly Whiting, Engineer III at King County Department of Natural Resources and Parks, submitted on behalf of the Washington State Department of Ecology in PCHB No. 01-160 (Airport Communities Coalition and Citizens Against Sea-Tac Expansion v. Ecology and Port Of Seattle). Whiting reviewed the Port of Seattle’s Comprehensive Stormwater Management Plan (SMP)

Pre-filed testimony of W. A. Rozeboom, M.B.A., P.E. submitted to the Environmental Hearings Office (PCHB), received March 18, 2002, consisting of an index to exhibits A through P. Exhibits include Northwest Hydraulic Consultants letters to U.S. Army Corps of Engineers (November 1999, February 2001, June 2001, December 2001) commenting on stormwater, hydrology, and hydraulics of