TagEcology(788)

Letter from Foster Pepper & Shefelman (attorneys for Port Of Seattle) to Kaleen Cottingham, Presiding Officer, Pollution Control Hearings Board (PCHB Case No. 01-160), dated November 15, 2001, identifying plans and reports prepared or expected to be prepared pursuant to §401 Certification. Lists documents submitted on or before November 15, 2001 (Wetland A17 mitigation plan,

Respondent Washington State Department of Ecology’s objections filed before the Pollution Control Hearings Board (PCHB No. 01-133, PCHB No. 01-160) to issues proposed separately by Airport Communities Coalition (ACC). Ecology objects to ACC Issue No. 2 as outside the Board’s jurisdiction over the 401 Certification, and to ACC Issue No. 3 as duplicative, vague, and

Respondent State of Washington Department of Ecology’s revised preliminary witness and exhibit list filed before the Pollution Control Hearings Board in PCHB No. 01-133 and 01-160, Airport Communities Coalition v. Ecology and Port Of Seattle. Lists 11 Ecology witnesses including Ann Kenny, Erik Stockdale, Kevin Fitzpatrick, Dave Garland, and others from Ecology Northwest Regional Office

Stipulation filed November 2, 2001 in PCHB No. 01-160 by Airport Communities Coalition (ACC) against Washington State Department of Ecology and Port Of Seattle, pursuant to Pre-Hearing Order dated October 30, 2001. Three stipulated legal issues: (1) whether Ecology violated applicable law on public and agency notice, hearing, comment, and modification regarding the original 401/404

This 2001 email chain discusses how fill materials used in the construction of Seattle-Tacoma Airport's Third Runway Embankment should meet environmental criteria under a 401 water quality permit. State regulators and Port of Seattle staff debated which materials — including topsoil, utility backfill, base course, and general embankment fill — required testing, supplier certification, or quality assurance plans to demonstrate compliance. Officials agreed that highly processed materials like topsoil could be covered by supplier certification, while bulk embankment fill would require a statistical sampling and QA/QC program.

A November 2001 email chain discusses a meeting held on October 30, 2001, regarding errors discovered in a low flow analysis related to environmental modeling near Seattle. Raymond Hellwig of NWRO confirms that revisions to the low flow analysis may be considered to correct previous modeling errors, but stresses that any revised submissions must include thorough documentation and clear rationale. The correspondence involves multiple agencies and contractors, including Floyd Snider McCarthy, Inc., the U.S. Army Corps of Engineers, and Port of Seattle representatives.

Meeting notes from an October 30, 2001 technical session addressing errors discovered in the low streamflow modeling for Sea-Tac International Airport's Third Runway project. Consultants identified six modeling errors, including a conversion factor mistake that caused embankment flow contributions to be understated by a factor of 24, along with incorrect input files and improper groundwater routing. Representatives from the Port of Seattle, King County, the Department of Ecology, and the Army Corps of Engineers agreed on corrective revisions to be incorporated into a revised Low Streamflow Analysis and Summer Low Flow Impact Offset Facility Proposal required under the 401 Permit.

These draft meeting notes from October 30, 2001 document a technical review session in which Port of Seattle consultants disclosed and explained several errors found in the low streamflow modeling for the Sea-Tac Airport Third Runway project. The key errors included a 1/24th magnitude conversion factor mistake in embankment fill data input, incorrect input files used for embankment modeling, and an overlap in which approximately 8 acres of the Walker Creek embankment appeared to be counted in both the Hydrus embankment model and the HSPF stream model. The meeting outlined corrective steps to be taken by the Port's consulting team to fix these errors before finalizing the revised Low Streamflow Analysis required under 401 Permit conditions.

Final meeting notes from October 30, 2001 Low Flow Analysis meeting regarding Port Of Seattle’s revisions to the Low Streamflow Analysis and Summer Low Flow Impact Offset Facility Proposal per 401 Permit conditions for Sea-Tac Airport Third Runway. Attendees included Ann Kenny (Dept. of Ecology), Kelly Whiting and David Masters (King County), Lisa Scott (Corps

Port Of Seattle’s submittal of record references in PCHB case No. 01-160 (Airport Communities Coalition v. Department of Ecology and Port Of Seattle), filed October 29, 2001, opposing ACC’s motion for stay. Lists declarations from James C. Kelley Ph.D., Katie Walter, Erik Stockdale, Paul S. Fendt, Joseph Brascher, Donald Weitkamp Ph.D., Ann Kenny, Edward O’Brien,