STORMWATER/WATER QUALITY

NPDES Permit Stormwater Monitoring Support at Seattle-Tacoma International Airport, Port of Seattle (1998-present)

Taylor Associates, Inc. provides stormwater monitoring services to meet the requirements of the Port of Seattle’s NPDES permit at the Seattle-Tacoma International Airport (STIA). Staff are responsible for collecting grab and flow-weighted composite samples and monitoring flow at 14 stormwater outfalls. Over 150 grab and composite samples are collected annually. Chemical analyses of the stormwater samples include pH, hardness, fecal coliforms, total-petroleum hydrocarbons, biological oxygen demand, turbidity, total suspended solids, glycols, copper, lead, and zinc. Taylor Associates, Inc. also provides support for special water quality studies related to NPDES permit compliance at STIA. These special studies include:

• Sampling for Whole Effluent Toxicity (WET) Testing
  (1998-1999, 2001)
• Runway Deicing Instream Dissolved Oxygen Studies
  (1998-99)
• Fecal Coliform Source Tracing (1998)
• Microbial Source Tracking Study (2001)
• Metals/ Toxicity Source Tracing (1999)
• Lab-Scale Testing of Filter Media for Stormwater
  Treatment (2001)
• Treatment of Roof Runoff for Zinc Removal by Filtration
  Media Study (2003-present)
• Literature Review of Stormwater BMP Metals Removal
  Performance: Copper and Zinc (2002-2003)
• Sanitary Sampling of Biffy Sanitary Wastewater
  (2000-2001)
• Pollutant Generating Impervious Services Study
  (2002-present)



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