Brian Timmins
Technical Advisor - Bioremediation
Brian is widely recognized and highly acclaimed as an expert in bioremediation and groundwater recirculation systems. He has designed, implemented, and optimized groundwater recirculation systems to effectively stimulate the enhanced in situ aerobic and anaerobic biodegradation of contaminated Sites at over 400 industrial projects throughout North America. Brian supports The Group as a Technical Advisor to bioremediation and groundwater recirculation applications, helping oversee bioremediation system design, system performance analysis, and
interpretation of operational data throughout project implementation.
Brian's Journey
Mr. Timmins has over 20 years of experience in the environmental industry, and has focused most of that time on the remediation of fuels and chlorinated solvents using a variety of in situ and ex situ remedial approaches. He has spent a large part of his career designing remediation systems to utilize and optimize bioremediation processes, by coupling those with chemical oxidation and various surfactants. In addition, he has designed and constructed automated groundwater recirculation systems capable of delivering amendments to the subsurface to achieve remedial goals in a reasonable timeframe and cost. Several of these systems have been coupled with horizontal remediation wells to enhance the overall process over large impacted areas, which has made him one of the leading experts in this field. The sites he has worked on have been across the US on State/Federal funded sites, private industry sites, and numerous DoD sites. He has a M.S. in Environmental Engineering from Oregon State University and a B.S. degree in Environmental Science from the University of Florida.
Brian's Selected Publications
- M. Dolan, L. Semprini, and B. Timmins. 2001. Aerobic Cometabolic Transformation of Trichloroethylene and cis-Dichloroethylene in Propane-Fed Aquifer Microcosms. Battelle Press, Columbus, OH, 179-186 (2001).
- M.E. Dolan, L. Semprini, and B. Timmins. 2001. Soil Microcosm Protocol for Evaluating the Potential for Aerobic Cometabolism of Chlorinated Aliphatic Hydrocarbons Using Gaseous Cometabolic Substrates. Final Report: submitted to the U.S. Air Force and ESTCP.
- M.E. Dolan, A. Tovanabootr, M. Azizian, L. Semprini, and B. Timmins. 2001. Comparison of Microcosm Tests and a Field Demonstration of Cometabolic Air Sparging With Propane for the Bioremediation of Trichloroethylene and cis-Dichloroethylene. American Geophysical Union Fall Meeting, San Francisco, CA.
- B. Timmins and D. Laughlin. 2006. Use of a Low-cost Substrate in a Continuous Recirculation Process to Stimulate Plume-wide Anaerobic Dechlorination of Chlorinated Solvents. Remediation: The Journal of Environmental Cleanup Costs, Technologies, and Techniques. Summer 2006, Vol. 16, No. 3.
- M. Goltz, R. Gandhi, S. Gorelick, G. Hopkins, L. Smith, B. Timmins, and P.L. McCarty. 2005. Field Evaluation of In Situ Source Reduction of TCE in Groundwater Using Bioenhanced In-Well Vapor Stripping. Environmental Science and Technology. Vol. 39 (22), 8963-8970.