TagEcology(797)
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2001-03-14
EXH AR029135: Draft Technical Meeting Notes — 401 Permit Decision-Making, Sea-Tac Airport Third Runway, March 14, 2001
Draft meeting notes prepared by Kate Snider of Floyd & Snider Inc. for a technical meeting held March 14, 2001 regarding 401 Permit Decision-Making for the Sea-Tac International Airport Third Runway. Attendees included representatives from the Washington State Department of Ecology (John Drabek, Kevin Fitzpatrick, Ann Kenny), Port of Seattle (Keith Smith), King County (Kelly -
2001-03-14
EXH AR017269: 401 Permit Decision-Making, Sea-Tac Airport Third Runway — Draft Technical Meeting Notes, March 14, 2001
Draft meeting notes prepared by Kate Snider of Floyd & Snider Inc. for a Technical Meeting held March 14, 2001 regarding 401 Permit Decision-Making for Sea-Tac International Airport Third Runway. Attendees included representatives from Washington State Department of Ecology (John Drabek, Kevin Fitzpatrick, Ann Kenny), Port of Seattle (Keith Smith), King County (Kelly Whiting), AquaTerra -
2001-03-13
Exhibit 49: RE: Draft Notes from POS/Ecology Meeting 3/9
Email from Kelly R. Whiting (King County Department of Natural Resources, Water and Land Resource Division, Drainage Services Section) to Rachel McCrea (Floyd & Snider, Inc.), cc Ann Kenny and David Masters, dated March 13, 2001. Whiting provides editorial comments on draft meeting notes from a POS/Ecology 401 permit ‘process and logistics’ meeting held March -
2001-03-12
EXH AR17739: Draft Meeting Notes — 401 Permit Decision-Making, Port Of Seattle / Ecology Meeting, March 9, 2001
Email chain dated March 12, 2001 from Steve Alexander (ECY/Ecology) to Ann Kenny and Raymond Hellwig, forwarding draft meeting notes from a March 9, 2001 management meeting between the Department of Ecology and the Port Of Seattle regarding the 401 Certification process for Sea-Tac Airport Third Runway. Alexander clarifies that TCP (Toxics Cleanup Program) committed -
2001-03-12
EXH AR023562: ACC Comment Letter NPDES Permit Major Modification STIA
A March 2001 letter from Water Resources Consulting LLC to the Washington State Department of Ecology raises concerns about a proposed NPDES permit modification for SeaTac Airport, arguing that the draft permit gives the Port of Seattle a 'blank check' to discharge pollutants at unspecified locations into unnamed water bodies without adequate public oversight. The letter also criticizes the airport's stormwater monitoring reports for obscuring potential water quality violations by mishandling hardness data used to evaluate dissolved metals concentrations. The author urges the Department of Ecology to require specific discharge locations and proper concurrent hardness reporting before issuing the modified permit. -
2001-03-09
Exhibit 2099: Ecology Memo — Review of Sea-Tac Airport Master Plan Update Low Streamflow Analysis (Earth Tech, December 2000)
Memorandum dated March 9, 2001 from Dave Garland, Washington Department of Ecology NWRO Water Quality Nonpoint Unit, to Kevin Fitzpatrick and Ann Kenny, reviewing Earth Tech’s December 2000 ‘Sea-Tac Airport Master Plan Update Low Streamflow Analysis’ (Exhibit 2099, AR 033695–033697). The memo evaluates HSPF streamflow modeling for Miller Creek, Walker Creek, and Des Moines Creek -
2001-03-09
EXH AR029131: 401 Permit Decision-Making, Sea-Tac International Airport Third Runway — Final Draft Meeting Notes
Final draft meeting notes from March 9, 2001 (11:00–3:00) for the 401 Permit Decision-Making process for Sea-Tac International Airport Third Runway, prepared by Kate Snider of Floyd & Snider Inc. Attendees included Ray Hellwig, Kevin Fitzpatrick, and Ann Kenny (Dept. of Ecology), Elizabeth Leavitt (Port of Seattle), David Masters (King County), and Floyd & Snider -
2001-03-09
EXH AR017265: 401 Permit Decision-Making Meeting Notes — Sea-Tac Airport Third Runway
Draft meeting notes prepared by Kate Snider, Floyd & Snider Inc., from a March 9, 2001 management meeting on the 401 permit decision-making process for Sea-Tac International Airport Third Runway. Attendees include Ray Hellwig, Kevin Fitzpatrick, and Ann Kenny (Dept. of Ecology), Elizabeth Leavitt (Port of Seattle), David Masters (King County), and Floyd & Snider -
2001-03-09
Exhibit 107: Ecology Memorandum — Review of Sea-Tac Airport Master Plan Update Low Streamflow Analysis (Earth Tech, December 2000)
Memorandum dated March 9, 2001, from Dave Garland, Ecology NWRO Water Quality Nonpoint Unit, to Kevin Fitzpatrick and Ann Kenny, reviewing the Earth Tech December 2000 report ‘Sea-Tac Airport Master Plan Update Low Streamflow Analysis.’ The memo evaluates HSPF streamflow modeling and supplemental analyses for Miller Creek, Walker Creek, and Des Moines Creek in connection -
2001-03-02
EXH AR021820: GeoSyntec Correction Comment #7 Pseudo-Static Seismic Stability Third Runway Wall ACC Technical Review
In March 2001, GeoSyntec Consultants submitted a correction to a technical review letter concerning the Third Runway Project at Seattle-Tacoma International Airport, clarifying that the seismic stability analysis used by Hart Crowser may seriously overestimate—not underestimate—the wall's ability to withstand earthquake loads. The firm argued that analyzing only the failure surface with the lowest static safety factor, rather than independently searching for the critical seismic failure surface, is an incorrect methodology. GeoSyntec recommended a proper pseudo-static slope stability analysis to ensure adequate ground improvement measures are applied in the right areas.