Environmental Consultant Portland Oregon Hahn and Associates, Inc.

Mr. Gary Hahn, President and Principal (B.S. Chemistry)

	Gary founded Hahn and Associates, Inc. in 1987. He brings over 30 years of experience in the environmental field to HAI. His background is with governmental agencies and the private sector in the area of hazardous waste management, regulatory compliance, and site assessment and cleanup. Gary provides technical oversight to the HAI staff and is responsible for marketing, development, and administrative functions, and is also the chair of the HAI Management Team. Gary serves on the board of directors of The Wetlands Conservancy, and also is the chair of the board of directors of The Seva Foundation, which serves the sight impaired in the Third World.

Mr. Roger Brown, R.G., Vice President and Principal (M.S. Geology)

	Roger is an Oregon-Registered and Washington-Licensed Professional Geologist and has conducted geologic and environmental site investigations, and cleanups for over 23 years. He has supervised HAI's Site Investigation Group since 1992. Roger is the Senior Technical Advisor for the company and provides quality control/quality assurance (QA/QC) for large or complex projects. He has managed or conducted Remedial Investigations (RI), Beneficial Use Determinations, Risk Assessments, Feasibility Studies (FSs, Remedial Design, and Cleanup Actions for complex sites within a variety of regulatory programs. Roger's other duties include client development and membership on the HAI Management Team.

Mr. Rob Ede, R.G., Principal (B.S. Geology, M.S. Earth Resources)

	Rob is an Oregon-Registered and Washington-Licensed Professional Geologist specializing in the fields of geology and hydrogeology. Since 1991, he has been responsible for a wide range of projects, including soil and groundwater investigations, Remedial Investigations (RIs), and regulatory site closures reporting for a variety of commercial, industrial, and Brownfield properties. Rob is currently involved with the management of a large RI/FS project in the Oregon Department of Environmental Quality (ODEQ) Voluntary Cleanup Program for a Portland Harbor riverfront property with both upland and in-water issues. His other duties include client development and membership on the HAI Management Team.

Ms. Nora Eskes, Associate (B.S. General Science)

	Nora has conducted numerous Phase I ESAs since 1999, which have included large and/or complex properties, in both the public and private sector, for which extensive historical and regulatory file research has been required. Nora leads the Site Assessment Group, and is in charge of client development for Phase I ESAs, along with being a member of the HAI Management Team.

Gary Walvatne, R.G., Associate (B.A. Geology)

	Gary is registered in Oregon, Washington and California as a Professional Geologist and works in the fields of geology, hydrogeology, and environmental compliance (including RCRA permitting). Since 1985, he has been responsible for a wide range of projects, including soil and groundwater investigations, interim actions, corrective measures, and construction quality assurance under both RCRA and CERCLA for a variety of commercial, industrial, and Brownfield properties. He is also an ASQ Certified Quality Auditor (CQA) and has conducted numerous audits of environmental and quality management systems (EMS/QMS) for complex multi-facility governmental and private organizations, including conformance to ASME NQA-1 and ISO 14001. He is presently involved with investigations for a regional groundwater contamination site and source control for a property in the Portland Harbor EPA Superfund Site.

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Mr. Dave Pardue, Project Manager (M.S. Environmental Management)

Dave has over 7 years of experience in conducting site investigations and remediation, Phase I and Phase II ESAs, and regulatory compliance projects for a variety of commercial and industrial clients. He is skilled at proposal, scope of work, and report preparation, and is licensed by ODEQ to decommission and cleanup USTs and heating oil tanks.

Ms. Eleanore Ramsey, G.I.T., Project Manager (B.S. Geology)

Eleanore has worked for over 3 years conducting and supporting Phase I ESAs, including undeveloped land, watersheds, developed urban properties, residential properties, commercial developments and industrial properties in the western U.S. She has also worked for the U.S. Geological Survey acquiring and analyzing geophysical field data.

Mr. Corey Raspone, Project Manager (B.S. Geology)

Corey has worked since 2003 as an environmental field technician in the areas of groundwater monitoring well installation and Phase II ESA site investigation. At HAI, Corey provides the sampling of soils and groundwater related to Phase II ESA projects, subcontractor supervision and GIS data gathering and plotting.

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Mr. Mike Krzeminski, Project Manager (B.S. Natural Resource Management)

Mike has over 9 years of experience conducting Phase I and Phase II ESAs, as well as extensive experience performing site investigations, groundwater monitoring, remediation projects, and drywell compliance and permitting. He has also worked in the Natural Resource Field as a Wildlife Biologist conducting avian surveys and habitat restoration projects.

Ms. Grazyna Henrichs, Senior Environmental Scientist (M.A. Environmental Protection)

Grace has over 5 years of experience conducting Phase I ESAs, as well as underground storage tank (UST) decommissioning and lead-based paint (LBP) and asbestos-containing material (ACM) sampling. She has completed more than 180 Phase I ESAs, that have included undeveloped land, watersheds, developed urban properties, residential properties, commercial developments and industrial properties throughout the western U.S.

Ms. Jane-Clair Kerin, G.I.T., Senior Environmental Scientist (M.S. Geology)

Jane-Clair conducts and supports Phase II ESAs of undeveloped land, developed urban properties, as well as industrial properties. For HAI, she also provides data quality assurance activities.

Mr. Ben Uhl, Senior Environmental Scientist (B.S. Geology)

Ben has worked in the environmental consulting industry since 2004, collecting and validating data for the preparation of soil and groundwater investigative reports. He also implements Phase II ESA investigations and conducts data quality assurance activities at HAI.

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