Our Staff
Thomas P. Brunsing, Ph.D., P.E.
President
Principal Engineer
Dr. Brunsing provides geological and environmental engineering expertise in all aspects of hazardous waste site and facility assessments and remedial design. As a Principal of the firm, Dr. Brunsing has managed over 200 preliminary site assessments, over 200 remedial investigations, and over 100 site cleanups. He has provided oversight on over 200 UST remediation projects. Dr. Brunsing has provided remedial design engineering to five California State Superfund sites. He has provided oversight for closure and post closure land use on both private and public sectors/sites. Dr. Brunsing has directed groundwater investigations and mitigation efforts on nine solid waste landfill projects. Project experience includes development of treatment systems for industrial discharge and contaminated groundwater, preparation of bid documents and plans and specifications, and construction management.
Erik Olsborg, P.G., C.E.G.
Vice President
Principal Engineering Geologist
Mr. Olsborg is the senior vice president with BAI providing engineering geology expertise in all aspects of geotechnical and geologic engineering. He has managed hundreds of investigation for construction projects within hillside, ocean bluff/beach, river/creek bank, marine and non-marine terrace, and estuary environments. Mr. Olsborg has been mapping geologic features throughout the northern San Francisco Bay Area for the majority of his career and as such is one of the foremost authorities on the properties of major geologic formations found in Sonoma, Mendocino, Lake and Napa Counties.
Keith Colorado, P.E., G.E.
Chief Operations Officer
Principal Geotechnical Engineer
Mr. Colorado is the chief operations officer with BAI as well as a licensed civil engineer with over eighteen years of experience in geotechnical engineering. He has performed field observation and testing, field exploration, laboratory testing, and geotechnical engineering analyses for various projects in Marin, Sonoma, and Mendocino Counties, California. The projects have included small to large commercial/industrial facilities, roadways, bridges, hillside sites, and residential developments. His experience also includes extensive report writing, and developing cost estimates.
Michael Shelton
Field Technician
Gene Clifford
Field Technician
Carolyn Schertzer
Executive Assistant/Controller
Officer Manager
Human Resources
Marilyn Colorado
Receptionist
Accounting Assistant
Sample Control