About Our Team of Experts With professionals who specialize in hydrology, geology, soil science, water resource planning, groundwater modeling, and much more, M&A has the ability to create the right team for each project. Key Professionals Hale Barter, President Modeling / Mining Brittney Bates Modeling / Data Tim Bayley, Ph.D.Modeling / Economics Pascual Benito, Ph.D.Modeling Esteban Briones Modeling / Environmental Lauren Candreva, P.G.Environmental / Water Supply Chris CottinghamMining / Environmental Mark Cross, P.G.Recharge / Litigation Support Bill DeBoer, P.G.Wellfield Services / Water Supply José FerrettiMining / Environmental Chris GregoryMining / Well Design Dennis Hall, P.G.Water Supply / Environmental Leslie Katz, P.G.Environmental / Water Supply Todd Keay, P.G.Mining Colin Kikuchi, Ph.D.Modeling Georgina King, P.G.Water Supply / Planning John Laney, P.G.Environmental Tim Leo, P.G., V.P.Environmental / Modeling Juliet McKenna, P.G.Water Planning / Policy Manuel Merino Water Resources / Modeling Jeff MeyerEnvironmental / Recharge Errol Montgomery, Ph.D., P.G.Founder Mark MyersPolicy / Economics Greg Nelson, P.G.Modeling / Mining Abby Ostovar, Ph.D. Water Policy Christopher Peters, P.G.Mining / Modeling John Petti Mining / Environmental Paul Pettit Mining Lisa Porta, P.E. Modeling / Planning Dexter RaceMining Mike Rosko, P.G., V.P.Mining / Supply / Brine Staffan SchorrModeling / Water Supply Matthew Shelley Mining / Well Design Cameron Tana, P.E.Modeling / Planning Derrik Williams, P.G.Planning / Modeling Megan Zivic, P.G. Modeling / Data