TagPollution Control Hearings Board(1532)

An email exchange between Ken Ludwa and Kerry Ritland regarding Section 4.3 (Water Quality Facilities) of a stormwater management report. Kerry requests edits to reference Appendix F – Water Quality BMP Analysis for evaluation and recommendations of water quality BMPs. The section covers stormwater treatment design, NPDES permit requirements, and source control best management practices.

King County Superior Court Findings of Fact, Conclusions of Law and Final Order by Judge Robert H. Alsdorf in consolidated cases No. 96-2-20357-2 KNT, No. 97-2-13908-2 KNT, No. 97-2-22276-1 KNT, No. 98-2-04911-1 KNT. Challenges Port Of Seattle Resolutions 3212 and 3245 approving the Sea-Tac Master Plan Update including construction of a third runway at Seattle-Tacoma

An internal email from Ken Ludwa to Paul Fendt providing cost figures for a StormFilter stormwater management system, based on a discussion with Jim, VP of Stormwater Management. The email outlines approximate design and build costs of $2.3 million for a 100 cfs system with 4,700 cartridges, and $1.8 million for an 80 cfs system,

Memorandum dated July 1, 1998 from Ken Ludwa (Parametrix, Inc.) to Paul Fendt, describing results of a Reasonable Potential Analysis (RPA) for the Sea-Tac International Airport (STIA) Third Runway area. Analysis used outfall 005 (SDS-3) stormwater runoff data (1994-98), with two 1996 deicing sampling events removed. Criteria established for Miller Creek (hardness 23 ppm) and

A memorandum from Ken Ludwa of Parametrix, Inc. to Paul Fendt describing the results of a Reasonable Potential Analysis (RPA) performed for the STIA Third Runway area. The analysis assessed predicted stormwater runoff pollutant concentrations against water quality criteria for Miller Creek and Des Moines Creek, finding that most pollutants met criteria after BMP treatment

Draft Stormwater Quality Management Plan (Appendix F) prepared by Parametrix, Inc. for Port Of Seattle, July 1998, as part of the Preliminary Comprehensive Stormwater Management Plan for Sea-Tac Airport Master Plan Improvements. Covers existing drainage conditions including Storm Drain System (SDS) and Industrial Waste System (IWS), Miller Creek and Des Moines Creek receiving systems, existing

Memorandum from Ken Ludwa (Parametrix, Inc.) to Paul Fendt dated July 1, 1998, project number 55-2912-01, describing results of a Reasonable Potential Analysis (RPA) for the STIA Third Runway area stormwater runoff. Analysis conducted at a working meeting with Lisa Zinner (Ecology), Lori Terry (Preston, Gates, and Ellis), Tom Hubbard (POS), John Rogers (CH2M Hill),

An email from John Rogers of CH2M to Thomas P. Hubbard and Ken Ludwa sharing a web link to a stormwater management company providing compost filters. Rogers notes the company had recently changed their name and would be sending additional product information by overnight mail and water quality data by fax.

An email from Ken Ludwa to Jim Kelley dated June 30, 1998, with an attached spreadsheet (Bmps.xls) summarizing removal efficiency data for Best Management Practices (BMPs). The spreadsheet compiles data from multiple sources comparing removal rates for solids, phosphorus, nitrogen, BOD, metals (Fe, Pb, Zn, Cu), bacteria, and TPH across different BMP types including detention

Port Of Seattle response to public and agency comments on Army Corps of Engineers Public Notice Permit Reference No. 96-4-02325 for Master Plan Development Actions at Seattle-Tacoma International Airport. AR035118/AR035119. Addresses six major concerns: EPA/COE MOA wetland impact sequencing and compensatory mitigation; justification for out-of-watershed mitigation (Auburn wetland) for wildlife habitat; South Aviation Support Area