TagDeicing(30)

This is a Procedure Manual for stormwater monitoring at Sea-Tac International Airport, developed by Port of Seattle Environmental Services to comply with NPDES Permit WA-002465-1. It outlines sampling locations, monitoring schedules, deicing event protocols, and quality assurance procedures for collecting and reporting stormwater data. The manual covers topics ranging from automatic and manual sampling methods to laboratory accreditation and discharge monitoring report requirements.

Stormwater Pollution Prevention Plan (SWPPP) for Seattle-Tacoma International Airport (Sea-Tac Airport), prepared by Port Of Seattle, originally November 1998 with Revision 1 (April 1999) and Revision 2 (December 2001). AR 052594. Covers drainage system description, potential pollution sources and Best Management Practices (BMPs) for aircraft servicing, ground anti-icing/deicing of roads and paved surfaces, snow storage,

Annual Stormwater Monitoring Report for Seattle-Tacoma International Airport (STIA) covering the period June 1, 1997 through June 30, 1998, prepared by Port of Seattle, received by Washington State Department of Ecology on December 1, 1998 (AR 033384). Report covers stormwater sampling results from airport subbasins including SDN2, SDS1, SDE4, and Taxi Yard; analytes include fats/oils/grease

Discharge Monitoring Report (DMR) for April 1998, permit number WA-002465-1, discharge number 001 (IWS), submitted by Port Of Seattle for Sea-Tac Airport (facility #681), P.O. Box 68727, Seattle WA 98168. Monitoring period covers April 1–30, 1998. Parameters monitored include flow (GPM), pH, oil and grease (mg/L), TSS (mg/L), BOD5 (mg/L), total glycols (mg/L), and TPH

A June 1997 transmittal from the Port of Seattle Engineering Department to Alaska Airlines' Peggy McCloskey forwards final bid bioassay results for the Arco Hoecust Safewing MP IV 1957 Green product. The enclosed Laboratory Report from Bio Research Laboratories, Inc. documents an Acute Oral Rat Toxicity Test performed for MultiChem Analytical Services, testing the Green Safewing MP IV substance at a dose of 5000 mg/kg. The report, dated May 21, 1997, was directed by Warren C. Ladiges, DVM, and signed off by President and Scientific Director John J. Majnarich, Ph.D.

Peer-reviewed article by S. Ian Hartwell, David M. Jordahl, Joyce E. Evans, and Eric B. May (Maryland Department of Natural Resources) published in Environmental Toxicology and Chemistry, Vol. 14, No. 8, 1995. Study assesses toxicity of ethylene glycol-based de-icer and propylene glycol-based anti-icer solutions from Baltimore-Washington International Airport (BWI) to aquatic organisms including fathead minnow

Academic journal article published in Environmental Toxicology and Chemistry (Vol. 14, No. 6, 1995) by Fisher, Knott, Turley, Turley, Yonkos, and Ziegler from the University of Maryland and Maryland Department of the Environment. Study characterizes acute whole effluent toxicity (WET) of storm water from Baltimore-Washington International Airport (BWI) on fathead minnow (Pimephales promelas) and daphnid

A 1993 letter from the Port of Seattle to a Des Moines resident explains that airline deicing at Sea-Tac Airport uses only FAA-approved ethylene or propylene glycol, and that wastewater from deicing drains to the airport's treatment system before being discharged to Puget Sound — not to Miller or Des Moines Creeks. The Port acknowledged its treatment plant was not designed to handle glycols and was evaluating upgrades. A follow-up 1996 letter challenges a contradictory statement in the airport's Final Environmental Impact Statement, which claimed most deicing fluids were contained and treated by the Port's Industrial Wastewater System.

A 1993 Port of Seattle letter to Des Moines resident Barbara Stuhring explains that airplane deicing at Sea-Tac uses only FAA-approved ethylene or propylene glycol, and that wastewater from deicing drains to the airport's treatment system before being discharged to Puget Sound — not to Miller or Des Moines Creeks. A 1996 Final Environmental Impact Statement (EIS) later addressed public concerns about deicing fluid effects on local waterways, concluding that glycol quantities in stormwater runoff were too small and too diluted to cause lethal impacts on aquatic life in those creeks. Stuhring subsequently wrote to the Port challenging what she saw as a contradictory response in the Final EIS compared to the original 1993 letter.