TagPCHB(607)

These internal communication records from Parametrix, Inc. (dated around May 1999) document discussions between environmental consultants and Washington State Department of Ecology staff regarding sampling and analysis protocols for port discharge outfalls. Key topics include the need for Ecology to review a Site Assessment Plan (SAP) and Quality Assurance Project Plan (QAPP) before work commenced, the applicability of clean sampling techniques for measuring copper concentrations in discharge water, and the distribution of draft Water Effluent Regulations (WER) guidance to regional offices for review.

These handwritten meeting notes dated 5/10/99 document a discussion among water quality staff including Kevin Fitzpatrick and Gary Bailey regarding permit standards and guidance. Topics covered include updating water quality standards to 'use-based' classifications, finalizing antidegradation rules, and establishing sampling protocols such as requiring at least 5 days of sampling during critical low-flow conditions. The notes also address mixing zone limits, AKART conditions for permit outfalls, and revisions to the permit writer's manual expected by June or July.

This 1999 plan, prepared jointly by the Washington State Department of Ecology and the Port of Seattle, outlines how the public will be involved in a ground water study at Seattle-Tacoma International Airport. The study was prompted by decades of jet fuel and petroleum product releases from underground storage tanks and fuel systems in the Airport's Aircraft Operations and Maintenance Area, which contaminated soil and ground water across 13 known sites. The plan describes required and additional public participation activities, community outreach roles, and the two-phase study approach, which included computer modeling of ground water flow to assess contamination risks to public water supplies and surface water.

Email chain dated April 30, 1999 from Ronald Lavigne (ATG) and Ann Kenny to Washington State Department of Ecology staff including Sandra Manning, Kevin Fitzpatrick, and others, raising legal concerns about agreements reached at a Wednesday meeting regarding 401 certification and 402 permit policy. Lavigne raises issues including: the state’s one-year waiver deadline for 401

In April 1999, the Washington State Department of Ecology requested contract services to independently review a groundwater study being conducted by the Port of Seattle at Sea-Tac Airport. The study aimed to determine whether groundwater contamination at the airport posed a risk to nearby surface waters and public water wells. Contract experts were needed to evaluate the Port's conceptual groundwater models, three-dimensional MODFLOW computer simulations, and proposed field monitoring work.

A April 17, 1999 outgoing telephone call was made to Kevin Fitzpatrick at the DOE regarding Project No. 55-2912-01(6), the POS Third Runway. The caller asked whether Ecology could proceed with reviewing the outline for the WER workplan and their approach to the mixing zones at the same time as evaluating BMPs at existing outfalls. Fitzpatrick responded that this was not acceptable to Ecology, stating that BMPs for existing outfalls must be addressed or confirmed as met before other project activities could proceed.

A April 14, 1999 email from Mike O'Neil of Metro King County discusses plans to use a Port of Seattle runway at Sea-Tac Airport as a disposal site for dredged material from Turning Basin #3 on the Duwamish/Hamm Creek project. The Port's contact, John Rothnie, found the material geotechnically and environmentally acceptable, but noted that sending more than 6 trucks per hour could trigger a special permit requirement from the City of SeaTac. Hauling was estimated to begin in June 1999 and conclude in August, with contingency plans for dewatering especially wet material at an alternative commercial site.

A March 30, 1999 follow-up phone call was made to Kevin Fitzpatrick of Ecology regarding a WER (Waste Equivalency Ratio) work plan renewal and a mixing zone study approach for a project near Sea-Tac Airport. Fitzpatrick indicated that Gary Bailey would assist with the WER work plan alongside Randy Marshall, and Norm Glen would review the mixing zone approach, but Kevin wanted to wait until after an April 1, 1999 meeting before proceeding. Key outstanding questions included whether existing outfalls already meet treatment standards and whether the Puget Sound Stormwater Manual technology standards would apply to existing outfalls at the site.

This document consists of a fax transmission from Parametrix, Inc. to Scott Tobiason at the Port of Seattle, dated March 29, 1999, transmitting water quality data logs and flow weighting calculation worksheets for WGR (water quality) samples collected from receiving streams on February 22, 1999. The attached field data logs record measurements such as pH, temperature, dissolved oxygen, and water levels at a site designated 'WC,' along with observations of rain, sheen, and water color during sampling. A flow weighting calculation worksheet for the 'Walker' site summarizes subsample volumes and calculates a total storm flow of 33,030 units for a 30-inch pipe.

This is a HartCrowser engineering calculations document dated 3/16/99, related to a '3R Wall Alternative Selection Process' peer review. It contains technical notes on retaining wall construction considerations, including settlement allowances, corrosion rates, MSE (Mechanically Stabilized Earth) wall facing under seismic conditions, geosynthetic material quality checks, and construction contingencies. The document also outlines action items including verbal records, memos, and specifications on plumbness and connections, with a meeting scheduled for the following week.