TagPCHB(607)

Direct testimony of Ching-Pi Wang, Environmental Engineer 4 in the Toxics Cleanup Program, Northwest Regional Office, Department of Ecology, Bellevue, Washington, submitted before the Pollution Control Hearings Board (PCHB No. 01-160) in the matter of Airport Communities Coalition (ACC) and Citizens Against Sea-Tac Expansion (CASE) v. State of Washington Department of Ecology and Port Of

Direct testimony of Katie Walter, senior principal wetland scientist at Shannon & Wilson, Inc., submitted on behalf of the Washington State Department of Ecology in PCHB No. 01-160, Airport Communities Coalition and Citizens Against Sea-Tac Expansion v. State of Washington Department of Ecology and Port Of Seattle. Walter reviews the Port Of Seattle’s Natural Resources

Direct testimony of Ed O’Brien, Environmental Engineer 4 at Washington State Department of Ecology Water Quality Program, submitted before the Pollution Control Hearings Board (PCHB) in case No. 01-160. Appellants are Airport Communities Coalition (ACC) and Citizens Against Sea-Tac Expansion (CASE) vs. State of Washington Department of Ecology and Port Of Seattle. O’Brien describes his

Direct testimony of Ann Kenny, Environmental Planner 4 at Washington State Department of Ecology Northwest Regional Office (NWRO), submitted on behalf of Ecology in PCHB No. 01-160. Proceeding before the Pollution Control Hearings Board, State of Washington, with Airport Communities Coalition (ACC) and Citizens Against Sea-Tac Expansion (CASE) as appellants against Ecology and Port Of

Revised direct testimony of Dave Garland, hydrogeologist and Watershed Unit supervisor at Washington State Department of Ecology Northwest Regional Office, submitted on behalf of Ecology in PCHB No. 01-160. Proceeding involves Airport Communities Coalition (ACC) and Citizens Against Sea-Tac Expansion (CASE) as appellants against Ecology and Port Of Seattle as respondents. Garland describes his 24-year

Direct testimony of Kevin Fitzpatrick, Section Manager of the Northwest Regional Office Water Quality Section, Washington State Department of Ecology, submitted before the Pollution Control Hearings Board (PCHB) in case No. 01-160. Airport Communities Coalition (ACC) and Citizens Against Sea-Tac Expansion (CASE) are appellants; State of Washington Department of Ecology and Port Of Seattle are

This document is a technical laboratory reference table listing method detection limits (MDLs), practical quantitation levels (PQLs), and published water quality values for a wide range of chemical compounds in various water matrices, including wastewater, groundwater, and drinking water. It compares laboratory PQL ranges against Method B groundwater and surface water standards for chemicals such as acenaphthene, acrolein, aldrin, arsenic, benzene, and PCB compounds. The table is used to assess whether analytical detection capabilities meet regulatory thresholds for water quality monitoring purposes.

This technical document describes the background water chemistry and modeling assumptions used to estimate how metals move through soil and groundwater at contaminated sites. It outlines key simplifications in the MINTEQ geochemical model, including the assumption of chemical equilibrium and the exclusion of redox potential, and presents soil-sorption values (Kd) for various metals such as arsenic, chromium, and cadmium that vary with soil pH. The results show that metal mobility is most strongly influenced by pH levels in the subsurface environment.

This document presents three-phase back calculations for soil contamination levels at a site, listing various chemical constituents including heavy metals (arsenic, cadmium, chromium, lead, mercury, zinc) and petroleum products (TPH, gasoline, heavy oils). The table compares cleanup criteria from multiple regulatory frameworks including ambient water quality criteria (AWQC), drinking water standards, Model Toxics Control Act (MTCA) methods, and Fish and Wildlife Service ecological screening levels. The calculations were used to evaluate soil remediation thresholds based on leaching potential and ecological risk, with source references including EPA and MTCA SSL tables dated August 2001.

Pre-filed testimony of Sally Nelson, Burien City Council member and former Mayor, submitted on behalf of appellant Airport Communities Coalition (ACC) in PCHB No. 01-160, ACC & CASE v. Dept. of Ecology & Port Of Seattle. Testimony introduces ACC — an interlocal agreement entity comprising Cities of Burien, Des Moines, Federal Way, Normandy Park, Tukwila,