TagStormwater(373)

Joseph Brascher, a hydrologic modeling expert at Aqua Terra Consultants, submitted this declaration in a 2001 Washington State Pollution Control Hearings Board case involving the Port of Seattle's Master Plan Update for Sea-Tac International Airport. He describes how the HSPF (Hydrologic Simulation Program – Fortran) computer model was used to analyze stormwater runoff and flow impacts on Miller and Walker Creeks resulting from planned airport construction. The declaration also outlines additional studies and design details requested by the Washington State Department of Ecology as conditions of its §401 water quality certification for the project.

Handwritten record of telecon from Eric Stockdale of DOE (Department of Ecology). Notes reference a senior level person doing work, mention of Kelly, King County, stormwater review, ‘Shou 333 receipt of Bilski’, NEMI biology, informal discussion, need to set up meeting. Also references Jim Kelly of Parometric, Paul Fordt Stormwater Engineer, Politics — third party

Prefiled direct testimony of Steven J. Swenson, licensed civil engineer at R.W. Beck, submitted in PCHB No. 01-160, Airport Communities Coalition (ACC) and Citizens Against Sea-Tac Expansion (CASE) v. State of Washington Department of Ecology and Port Of Seattle. Swenson testifies on stormwater management at SeaTac International Airport (STIA) during construction and operation of Master

NPDES Permit WA-002465-1 fact sheet for the Seattle-Tacoma International Airport (STIA), issued to the Port Of Seattle. Establishes basis for effluent limitations and requirements for discharge of treated industrial wastewater to Puget Sound (WA-PS-0270) and stormwater to Miller Creek (WA-09-2005), Des Moines Creek (WA-09-2000), and the City of SeaTac storm sewer, tributary to Gillian Creek

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