TagPollution Control Hearings Board(1532)

Deliberative internal email chain dated July 27, 2001, from Erik Stockdale to Ann Kenny, forwarded to Katie Walter, transmitting draft language for additional mitigation on Miller Creek related to SeaTac 3rd Runway construction. Ecology determined that ‘temporary’ wetland impacts (up to 2.05 acres, including 1.25 acres from stormwater ponds) are permanent in nature and require

In this July 27, 2001 letter, attorney Kevin L. Stock of Helsell Fetterman LLP writes to the Washington Department of Ecology on behalf of the Airport Communities Coalition (ACC), protesting that the Port of Seattle submitted a massive two-volume Low Flow Analysis on July 24 while Ecology planned to issue its Clean Water Act 401 certification decision as early as August 6. The ACC argues that this timeline denies the public a meaningful opportunity to review and comment on a critical water quality report, as required by the Clean Water Act and state law. The letter urgently requests that Ecology grant the public a minimum of thirty days to comment on the Port's latest low stream flow analysis before issuing any certification decision.

Deliberative internal email chain dated July 27, 2001 from Erik Stockdale to Ann Kenny, forwarded to Katie Walter, transmitting draft language for additional mitigation on Miller Creek related to the SeaTac 3rd Runway project (AR 018239–018241). The draft document, titled ‘Mitigation for Temporary Impacts — SeaTac 3rd Runway,’ addresses Ecology’s determination that impacts characterized as

Meeting notes from 2-26-01 discuss a new CFM proposal for Walker that may significantly increase storage requirements and affect SMP design feasibility, potentially impacting NRMP. Key concerns include the need to understand design feasibility and impacts, with discussion of resizing UDP to allow CFM regulations and hydrological monitoring. Participants noted too much time was being spent on modeling rather than addressing core design and impact questions.

Letter dated July 25, 2001 from Keith R. Smith, Water Resources Manager, Port Of Seattle, to Ann E. Kenny, Washington Department of Ecology Northwest Regional Office, clarifying the Low Streamflow Analysis and Summer Low Flow Impact Offset Facility Proposal for Seattle-Tacoma International Airport. Corrections address: embankment recharge calculation using ‘flat outwash grass’; non-contiguous groundwater contributions

Final meeting notes from July 24, 2001 conference call on 401 Permit Decision-Making for Sea-Tac International Airport Third Runway, Low Flow Analysis. Prepared by Kate Snider, Floyd & Snider Inc. Attendees included Ann Kenny (Dept. of Ecology), Kelly Whiting (King County), Keith Smith (Port of Seattle), Paul Fendt (Parametrix), Joe Brascher (Aquaterra). Discusses Port of

Hart Crowser report (project 4978-44) prepared for HNTB documenting installation and verification results for Work Area 2 stone column test areas at the Third Runway Embankment Phase 4, SeaTac, Washington. Authored by Barry S. Chen, Ph.D., P.E. (Senior Associate Geotechnical Engineer) and John P. Laplante (Senior Staff Geotechnical Engineer). Report covers four test areas with

Port of Seattle letter dated July 23, 2001 to Ann E. Kenny, Washington State Department of Ecology, Northwest Regional Office, summarizing low streamflow impact analysis and flow impact offset facility proposal for Seattle-Tacoma International Airport Master Plan Update projects. Prepared by Parametrix, Inc. Analysis covers summer low streamflow impacts to Des Moines Creek, Miller Creek,

In a July 2001 letter to the Washington State Department of Ecology, Northwest Hydraulic Consultants raised concerns on behalf of the Airport Community Coalition that the Port of Seattle's ongoing low streamflow analyses for Des Moines, Walker, and Miller Creeks near Sea-Tac Airport were likely underestimating the airport's impact on local waterways. The consultants argued that the models were poorly calibrated for upper-basin conditions and failed to account for post-1994 improvements to the Industrial Wastewater System or the future loss of forested areas due to planned airport development. They requested that a final report on the streamflow analysis and any proposed mitigation measures be made available for public comment before Ecology used it to make its 401 Certification decision.

Letter dated July 23, 2001 from Port Of Seattle to Ann E. Kenny at Washington State Department of Ecology Northwest Regional Office regarding Low Streamflow Analysis and Summer Low Flow Impact Offset Facility Proposal for Seattle-Tacoma International Airport. Covers summer low streamflow impacts in Des Moines Creek, Miller Creek, and Walker Creek from airport Master