TagWater Quality(475)

Declaration by Dr. John Strand, Principal Biologist for Columbia Biological Assessments, filed in support of ACC’s motion for stay before the Pollution Control Hearings Board (PCHB No. 01-133). Challenges Ecology’s Section 401 Water Quality Certification (Order #1996-4-02325) issued August 10, 2001, for Port Of Seattle’s Master Plan Update Improvements at STIA (Seattle-Tacoma International Airport). Strand

In September 2001, attorneys for the Port of Seattle filed an appeal of Water Quality Certification #1996-4-02325, issued by the Washington State Department of Ecology for improvements at Seattle-Tacoma International Airport, including construction of a third runway. Simultaneously, the Port and the Department of Ecology filed a Stipulated Agreement and Agreed Order of Dismissal, resolving the Port's appeal by agreeing to amend the water quality certification. The Port requested that the Pollution Control Hearings Board accept the stipulation, dismiss the Port's appeal, and allow the separate Airport Communities Coalition appeal to proceed using the revised certification.

In August 2001, Washington State's Department of Ecology issued a 401 water quality certification to the Port of Seattle for the proposed SeaTac Third Runway, permitting construction of an 8,500-foot parallel runway involving fill of nearly 20 acres of wetlands and development of 700 acres of upland area. The certification imposed strict stormwater management and wetland mitigation conditions, including 201 acres of wetland creation and riparian restoration. The certification was subsequently appealed by the Airport Communities Coalition on August 23, 2001, with a hearing before the Pollution Control Hearings Board scheduled for March 2002.

Transmittal form dated September 6, 2001 from Paul S. Fendt, P.E. of Parametrix (Kirkland, WA) to Ann Kenny at the Washington State Department of Ecology (Bellevue, WA 98008), transmitting wetland hydrology monitoring data for Port Of Seattle, Project Number 556-2912-001 01 03. Includes Lake Reba Area water level data tables for monitoring wells HC00-B151, HC00-B152,

Annual Stormwater Monitoring Report for Seattle-Tacoma International Airport (STIA), prepared by Scott Tobiason, Environmental Management Specialist, Aviation Environmental Programs, Port of Seattle, covering the period July 1, 2000 through June 30, 2001. Report includes NPDES stormwater monitoring data for Sea-Tac Airport storm drainage subbasins, grab and composite sample results for total petroleum hydrocarbons (TPH), fecal

This technical memo evaluates whether lead and zinc levels found in cutthroat trout from Miller Creek pose a risk, arguing that standard tissue screening concentrations are not appropriate for trout. Using fish-specific toxicity data and bioconcentration factors, the authors derive alternative thresholds and conclude that measured metal levels in the trout fall well below harmful concentrations. The document recommends using species-specific methods rather than generic screening values when assessing metal risks to fish.

Annual Stormwater Monitoring Report prepared by Port Of Seattle pursuant to Special Condition S2.E of the NPDES permit for Seattle-Tacoma International Airport (STIA), covering July 1, 2000 through June 30, 2001. Report covers 14 outfalls per permit condition S2.B; 61 grab and 59 composite samples from 22 storm events; 7-year cumulative totals exceed 400 samples

Response to Comment #16 by David DeForest to Linda Logan (September 2001) critiquing Shephard (1999) tissue screening concentrations (TSCs) for lead (0.32 mg/kg dw) and zinc (100 mg/kg dw) as applied to cutthroat trout from Miller Creek. Argues Shephard TSCs derived from EPA water quality criteria and bioconcentration factors (BCFs) are not appropriate for cutthroat

Confidential discussion draft talking points prepared by Curt Hart (Ecology) for the Third Runway Section 401 water quality certification permit appeal filed by the Airport Communities Coalition (ACC) to the Washington State Pollution Control Hearings Board (PCHB). Document addresses Ecology’s defense of the permit issued to Port Of Seattle for construction of a third runway

Internal Ecology meeting notes and talking points dated 8/16/2001 regarding the 401 Water Quality Certification issued for the Third Runway project at Sea-Tac Airport. Ecology staff prepared responses to Port Of Seattle concerns about the certification’s open-ended conditions, covering topics including NPDES major modification, stormwater retrofitting, wetland mitigation, Water Effects Ratio (WER) Study, Walker Creek