TagACC(1531)

Letter of transmittal dated June 18, 2001 from Michael Bailey, P.E. (Senior Principal, Hart Crowser) to Jim Kelley at Parametrix, Job No. 4978-06, transmitting four draft figures for the Third Runway Project Borrow Area 3 Wetland Protection Swale: Figure 1 Post-Reclamation Topography and Drainage Facilities, Figure 2 Typical Cross Sections, Figure 3 Post-Reclamation Topographical Detail,

Final draft meeting notes from a 401 Permit Decision-Making technical meeting for Sea-Tac International Airport Third Runway, held June 18, 2001, prepared by Rachel McCrea of Floyd & Snider Inc. Attendees included Ann Kenny and John Drabek (Dept. of Ecology), Kelly Whiting (King County), Keith Smith (Port Of Seattle), Felix Kristanovich (Foster Wheeler), Paul Fendt

Hart Crowser, Inc. report prepared for HNTB and the Port of Seattle, project number 4978-06, dated June 18, 2001, addressing avoidance of wetland impacts associated with Temporary Stormwater Pond A for the Sea-Tac Third Runway project. Includes summary of subsurface conditions, protection of wetlands analysis, groundwater seepage analysis, observed groundwater levels in monitoring wells near

Final meeting notes from June 14, 2001 (1:00–4:00 PM) prepared by Kate Snider, Floyd & Snider Inc., for the 401 Permit Decision-Making process for the Sea-Tac Airport Third Runway. Attendees included Ann Kenny and John Drabeck (Dept. of Ecology), Kelly Whiting (King County), Keith Smith (Port Of Seattle), Paul Fendt (Parametrix), Alan Black (HNTB), and

These draft meeting notes from a June 14, 2001 technical meeting cover the low flow stream analysis conducted as part of the 401 Permit Decision-Making process for Sea-Tac International Airport's Third Runway project. Attendees from the Department of Ecology, King County, Port of Seattle, and consulting firms identified five additional technical tasks, including verifying groundwater basin calibration parameters for Walker Creek and Des Moines Creek, documenting embankment infiltration rationale, and assessing water availability for proposed low stream flow mitigation measures.

Internal deliberative email from Chung K. Yee to Kevin Fitzpatrick (cc: Craig E. Thompson, Curtis A. Dahlgren, Tim Nord), dated June 13, 2001, regarding acceptable fill criteria language for the Draft 401 Certification for the Seattle-Tacoma International Airport Third Runway project. Pete Kmet of HQ/TCP recommended MTCA (Model Toxics Control Act) should not be used

A June 13, 2001 email from Kate Snider of Floyd Snider McCarthy, Inc. notifies project team members of a conference call scheduled for 3:30 PM that day. The agenda covers two technical topics: an updated approach to scaling up recharge rates (rather than precipitation) for an HSPF hydrological model run used to generate inputs for the Hydrus groundwater model, and a concern raised by one team member about potential upward groundwater flow. The email was sent to consultants and staff involved in what appears to be a groundwater modeling study related to the Sea-Tac Airport area.

These draft meeting notes from a June 12, 2001 technical meeting cover the Low Flow Analysis conducted as part of the 401 Permit Decision-Making process for Sea-Tac International Airport's Third Runway project. Representatives from the Washington Department of Ecology, King County, the Port of Seattle, and consulting firms discussed the status of hydrological modeling efforts, including HSPF and embankment seepage models, and outlined upcoming deliverables. The group also addressed plans for a mitigation and operational plan to evaluate and offset potential low stream flow impacts caused by the runway project.

Email from Chung K. Yee to Kevin Fitzpatrick (cc: Craig E. Thompson, Curtis A. Dahlgren, Tim Nord), dated June 13, 2001, regarding acceptable fill criteria language for the Draft 401 Certification for the Seattle-Tacoma International Airport Third Runway project. References June 11 discussion between Craig Thompson and Pete Kmet of HQ/TCP, who recommended MTCA (Model

Draft meeting notes from June 12, 2001 status meeting on Low Stream Flow related tasks for Sea-Tac International Airport Third Runway 401 Permit Decision-Making process. Attendees included Ann Kenny and John Drabeck (Dept. of Ecology), Kelly Whiting (King County), Keith Smith (Port of Seattle), Paul Fendt (Parametrix), and Charles Ellingson (Pacific Groundwater Group). Topics covered: