Trans Tech Consultants was founded in 1987 by Bill C. Wiggins and a partner. Bill took over sole ownership of the firm in 1997. Over the years TTC staff have performed services throughout northern California from Santa Clara to as far north as Humboldt County, Sonoma to as far east as Sacramento County, and in to the Central Valley. Our staff of Civil Engineers and geologists have over 80 years combined experience.

Bill Wiggins, P.E., President

Mr. Wiggins received a Bachelor’s degree in Civil Engineering from California State University at Chico in 1984 and is a registered Professional Engineer. Mr. Wiggins is also holds a State of California General .  Engineering Contractors License, with a Hazardous Substance Removal and Remedial Action Certification. Bill has been the Professional in responsible charge of thousands of projects over the last 30 years. His experience includes the investigation, mitigation and closure of sites contaminated with various hazardous and toxic materials.. Mr. Wiggins has served as the responsible professional for projects ranging from Phase I Environmental Site Assessments; Phase II focused environmental site investigations and Phase III site cleanups and mitigations.  Mr. Wiggins has been a consulting expert on numerous cases, including trial testimony and expert witness preparation.

Matt Donohue, P.E., Director of Engineering

Mr. Donohue has a Bachelor of Science degree in Petroleum Engineering from the Colorado School of Mines and is a registered Professional Civil Engineer.  Mr. Donohue’s focus at Trans Tech Consultants is providing civil engineering and petroleum design services to independent petroleum marketers.  Common projects include Retail Service Stations, Card-Lock Fueling Systems, and Petroleum Bulk Plants.  Trans Tech provides piping plans, grading and drainage plans, electrical plans, foundation plans, and can coordinate all of the necessary design and engineering drawings and specifications to acquire a building permit. Mr. Donohue also has experience as an expert witness and

Ron Crawford, Associate Architect

Mr. Crawford received a Bachelor’s degree in Art and Architecture from Stanford University, Palo Alto.  Mr. Crawford has 50 years experience in the construction design industry with many years experience in the Office of the State Architect of California.  Mr. Crawford has invaluable experience in the public sector having personally designed many features of the states prison system and many other public sector design projects.  Mr. Crawford’s credits also include the design of the CDF fueling and operations facility at the Santa Rosa, California airport.

Brian Hasik, Geologist

Mr. Hasik has a Bachelor’s degree in Geology from Sonoma State University. As a staff geologist, Mr. Hasik’s duties include the field supervision of monitoring well development, field sampling, and groundwater monitoring for hydrogeologic investigations. Mr. Hasik has experience in remedial soil excavations for contaminated sites, UST removal, and non-hazardous and hazardous waste characterization and disposal.

Wiliam H.H. Coset, Geologist

Mr. Coset has a Bachelors degree in Geology and has over 25 years experience in the earth sciences field. Mr. Coset has authored and submitted Health and Safety Plans for over 50 environmental sites. Mr. Coset has acted as both Health and Safety Officer and QA/QC officer for the same projects, being responsible for overseeing both staff and subcontractors, and implementing the Health and Safety plans. Mr. Coset has successfully completed and submitted various permit packages for construction and implementation soil and groundwater investigations and remediation systems. This permitting experience includes Fire Department, Public Works, Industrial Wastewater, County Well and Septic, Air Quality and NPDES permits. Mr. Coset has completed over a 100 ASTM compliant Phase 1’s.