t H ank y ou t o o ur c ontributors

Abigail Madrone

Abigail Madrone is the Business Development Director at West Yost Associates, a consulting engineering firm that specializes in water, groundwater, wastewater, and stormwater planning, design, and construction management projects. Abigail has over 15 years of professional experience in client services, marketing, business development and project management. Ms. Madrone received a Bachelor of Science degree in Managerial Economics with an emphasis in Agricultural and Resource Economics from the University of California, Davis. Abigail is the San Francisco Bay Area Branch Scholarship Chair and serves on various committees. Ms. Madrone is also the Immediate Past President of Northern California Professional Environmental Marketing Association.

David W. Abbott, P.G., C.Hg., Consulting Geologist

David W. Abbott, P.G., C.Hg., Consulting Geologist, is a Geologist with 45+ years of applied experience in the exploration and development of groundwater supplies; well location services; installation and design of water supply wells; watershed studies; contamination investigations; geotechnical and groundwater problem solving; and protection of groundwater resources.

Chris Bonds, Sacramento Branch Member at Large Pete Dennehy

Pete Dennehy, PG, CHg, is a hydrogeologist at Montgomery and Associates in Sacramento. He specializes in hydrogeologic investigations for sustainable groundwater resources management and water supply.

Abhishek Singh

Dr. Abhishek Singh is a Principal Engineer with more than 20 years of experience and is President of INTERA’s Water Resources & Supply Line of Business (LoB), where he leads and manages operations, business development, strategic planning for the lob across the United States. He has authored several technical publications and journal articles on groundwater modeling and calibration, stochastic optimization techniques, uncertainty and risk analysis, climate change, and emerging contaminants. Dr. Singh is also the chair of the GRA technical committee and serves on the GRA board of directors.

Azita Asadi

Azita Assadi, P. Geo. (Canada) is a technical committee member at the GRAC. She is a Hydrogeologist with over 20 years of consulting experience in water resources and soil/groundwater management in the US, Canada, and internationally. She is currently working as a Geologist at A-Tech Consulting Inc. in the field of subsurface investigation and water resources management.

Chris Petersen

California professional geologist (PG) and certified hydrogeologist (CHg) with GEI Consultants and task order manager for AEM Project

Julián Consoli PG with GEI Consultants and technical lead on compiling supporting data for AEM Project

Timothy Parker PG and CHg with Ramboll and lead reviewer for AEM Project Max Halkjaer Geophysicist with Ramboll, Lead Geophysicist and Project Director for AEM Project

Ahmad Behroozmand PhD and Senior Geophysicist with Ramboll Katherine Dlubac PhD, PG and Statewide AEM Survey Project Manager, DWR Sustainable Groundwater Management Act (SGMA) Office

Steven Springhorn PG and Technical Assistance Section Manager, DWR SGMA Office

Benjamin Brezing PE and Data Support Section Manager, DWR SGMA Office

Timothy Godwin PG, CHg, and Policy and Technical Advisor to the Deputy Director, DWR SGMA Office

Bruce Marvin

Bruce K. Marvin, P.E. is a Senior Principal at Geosyntec Consultants in Oakland, CA. Bruce works on PFAS, remediation, and redevelopment projects nationwide. He was co-chair of the GRA Technical Committee and a co-author of several Interstate Technology and Regulatory Council guidance manuals on DNAPL, chemical and biological remediation methodologies. He is an advisor to research teams at two universities investigating PFAS remediation technologies.

John Merrill

John Merrill is an Engineer at Geosyntec Consultants in Oakland, CA. John works on PFAS projects nationwide involving site investigation and remediation, litigation support, environmental due diligence, and applied research. Funded by the U.S. Department of Defense, he is helping develop lines of evidence to assess the effectiveness of PFAS remedial technologies.

Balaji Seshasayee

Balaji Seshasayee, P.E. is a Project Engineer at Geosyntec Consultants in Chicago, IL. Balaji works on groundwater treatment solutions for PFAS and other emerging contaminants, including technology evaluation, treatability testing, and treatment system design. His experience includes the analysis and design of fixed-bed adsorbers as well as other unit processes for water treatment.

Manmeet “Meeta” Pannu

Manmeet “Meeta” Pannu, Ph.D., is a Senior Scientist in the Research and Development Department of Orange County Water District (OCWD) at Anaheim, CA. Meeta is currently completing research at OCWD related to PFAS. These projects include evaluation of GAC, IX, and alternative adsorbents to remove PFAS from groundwater during wellhead treatment. Meeta also works on managed aquifer recharge evaluating in-situ adsorption and alternative methods to measure total PFAS in water samples.

Jim Strandberg

Jim Strandberg is a Senior Hydrogeologist/Project Manager at Woodard & Curran in Walnut Creek, CA. Jim is a member of the firm’s national emerging contaminants team and leads PFAS projects across the state.