As a focused regional firm, we provide a personal approach, along with attention to detail, consistent high-quality work, and continuity of staff and services, including Phase I and II ESAs, Remedial Investigations, and Brownfield Redevelopment. The solutions we provide for our clients are formulated to promote responsible stewardship of the environment.
Hahn and Associates, Inc.
Environmental Consultants
434 NW 6th Avenue, Suite 203
Portland, Oregon 97209-3651
503.796.0717
Providing Environmental Consulting Services for over 35 years
Our Team
Rob Ede, R.G., E.P.
Managing Principal, Senior Technical Advisor
Education: B.S. Geology & Environmental Science, M.S. Earth Resources Management
Licenses/Registration: Registered Geologist, Oregon, No. G1823, Licensed Geologist, Washington, No. 461
Rob Ede has worked in the environmental field since 1991 and has experience and a strong background in the evaluation of compliance with Federal and state environmental regulations as well as the scoping, performing, and supervising of subsurface soil and groundwater investigations and remedial actions, including remedial investigations, site investigations, beneficial use assessments for land and water, risk-based closure assessments, Brownfields assessments, and property reuse planning. Rob Ede has significant experience with construction-related projects where maintenance of fast track scheduling is critical to project success. He provides oversight, management, and quality control for large or complex subsurface investigation projects.
Eleanore Ramsey, G.I.T., E.P.
Associate
Education: B.S. Geology
Licenses/Registration: Geologist In Training, Oregon, No. T2213
Eleanore Ramsey has conducted Phase I ESAs since 2002, including undeveloped land, watersheds, developed urban properties, residential properties, commercial developments and industrial properties in the western U.S. She has expertise in all aspects of Phase I ESA research activities and report preparation, including aerial photograph analysis, historical research, interviews, and regulatory agency file review.
Roger Brown, R.G., E.P.
Principal, Senior Technical Advisor
Education: B.A. Geology/Biology, M.S. Geology
Licenses/Registration: Registered Geologist, Oregon, No. G1044, Licensed Geologist, Washington, No. 486
Roger Brown has conducted geologic investigations since 1979, and performed environmental site investigations and cleanups since 1989. He has extensive experience and background in managing and performing subsurface soil and hydrogeologic investigations, and remedial actions. He provides oversight, management, and quality control/quality assurance for large or complex projects. Roger Brown has managed and brought regulatory closure to many projects.
Steve Evans, R.G., E.P.
Associate
Education: B.S. Geology
Licenses/Registration: Registered Geologist, Oregon, No. G1322, Licensed Geologist and Hydrogeologist, Washington, No. 791
Steve Evans has conducted Phase I and Phase II ESAs for a wide variety of commercial, residential, agricultural, and industrial properties since 1988. His expertise includes conducting groundwater sampling, groundwater beneficial use surveys, remedial investigation and cleanup reports, Brownfield redevelopment oversight, characterization of sediments prior to dredging, compliance sampling, litigation-related data and cost review and completion of National Environmental Policy Act (NEPA) evaluations.
Valerie Allen
Bookkeeper
Valerie Allen's responsibilities at HAI include managing accounts payable and receivable, preparation of financial statements, monthly project invoicing, reconciling and applying payments to client accounts, preparation of project budget reports, tracking client agreements, payroll processing, and preparation and maintenance of HAI's operating budget. Additional responsibilities include assisting with the maintenance of the company's insurance program, maintaining corporate records, administrative functions related to human resources and employee benefit enrollment, and general support to HAI’s management team.
Gary Hahn, E.P.
Principal
Education: B.S. Chemistry
Gary Hahn has owned and managed Hahn and Associates, Inc. since its inception in 1987, and has provided environmental regulatory assistance and site assessment activities for commercial developers, for environmental organizations, for industry, and for government. Since 1976, he has conducted air quality assessments, designed and implemented multi-state environmental compliance programs, prepared hazardous waste facility permits, and managed complex environmental remediation projects. Gary is responsible for the day-to-day operations and contracting authority for the company, and also assists with technical oversight for a wide variety of projects.
Nora Eskes, E.P.
Principal
Education: B.A. Community Studies, B.S. General Science
Nora Eskes is the lead for the Site Assessment Group at HAI. Since 1999, she has conducted and reviewed hundreds of Phase I ESAs for a variety of government and private parties, including large and/or complex properties for which extensive historical and regulatory file research was required. These projects have included industrial facilities, commercial properties, shopping centers, automotive service stations, dry cleaning facilities, home sites, greenspace acquisitions, and agricultural and undeveloped properties. She is very experienced with the American Society of Testing and Materials (ASTM) Standard E1527 for Phase I ESAs, and with the potential issues of environmental concern related to various property/industry types.
Hiya
Office Manager
Hiya joined HAI in 2021 as a member of the administrative support team. He is responsible for office equanimity, for the distribution of puptides, and for general reception duties.