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Matthew Demer

Matthew Demer has a B.S. in Chemical Engineering from the University of California, Davis. For his senior design project, he modeled existing and proposed alternative technologies for the recycling of air and water on the International Space Station. He has contributed to chemistry research on organometallic catalysis at The Scripps Research Institute, and on electrocatalytic conversion of carbon dioxide to…
Julie Fasolas
January 30, 2025

Michael Karish

Michael Karish is an associate engineer. He has a M.S. from UC Berkeley in environmental engineering and a B.S. from UC Berkeley in environmental engineering science. He previously did an internship with Trussell in which he worked on the day-to-day field work and the data analysis of a non-potable reuse pilot project for the East Bay Municipal Utility District. During…
Julie Fasolas
August 20, 2024

Marcus Lira

Marcus Lira has a B.S. in Environmental Engineering and an M.S. in Civil and Environmental Engineering from California Polytechnic State University, San Luis Obispo. His master’s thesis focused on the recovery of winery wastewater for drip irrigation through the use of a bench-scale ultrafiltration membrane system. His research looked to determine if the UF effluent met regulation standards for crop…
Paula Moore
August 9, 2024

Sofia Martinez

Sofia Martinez has a B.S in Environmental Engineering from Drexel University. For her senior design project, she produced a sustainable landfill management strategy for a retired impoundment formerly belonging to DuPont, aiming to reduce the flow of groundwater through an unlined landfill and prevent leachate containing organic material from mobilizing naturally occurring arsenic in the soil. At Drexel’s chapter of…
Paula Moore
August 9, 2024

Owen Zuidema

Owen Zuidema (he/him) is an associate engineer at Trussell’s Oakland office with a background in Civil and Environmental Engineering, holding an M.S. from the University of California, Davis, and a B.S. from the University of California, Berkeley. With a passion for water resource management in California, Owen has experience in water treatment engineering, environmental research, and sustainable construction. At the…
Paula Moore
August 9, 2024

Matthew Verbyla

Dr. Matthew Verbyla has M.S. and Ph.D. degrees in Environmental Engineering from the University of South Florida. In 2017, he joined the Environmental Engineering faculty at San Diego State University (SDSU), where he is currently an Associate Professor of Environmental Engineering. During the 2024-25 academic year, he will be completing a one-year sabbatical from SDSU and will be working part-time…
Julie Fasolas
June 6, 2024

Samantha Hogard

Samantha received her B.S. in environmental engineering in 2016 from the University of Florida. She then conducted her graduate work at Virginia Tech while working at the Hampton Roads Sanitation District. She worked at HRSD’s 1-MGD demonstration-scale IPR facility optimizing advanced treatment processes including coagulation/flocculation/ sedimentation, ozone, BAF, and GAC operations. She also participated in extensive pilot testing to improve…
Julie Fasolas
February 28, 2024

Aarthi Mohan

Aarthi Mohan is a Senior Engineer (Category II) at Trussell’s San Diego office. Her interests lie in the nexus of drinking water, water reuse and analytical instrumentation. Previously, she worked with the Southern Nevada Water Authority’s (SNWA) Water Quality Research & Development Division contributing at various capacities (lead/assist) to projects sponsored by the Water Research Foundation (#5035, 5031, 5053, 5210,…
Paula Moore
December 14, 2023

Michael Sherer

Michael Sherer has a B.S. in Civil Engineering from the University of Alabama and an M.S.E. in Environmental and Water Resources Engineering from the University of Texas at Austin. Prior to joining Trussell, Michael worked as a water/wastewater process engineer in Texas for over 8 years. In that role, Michael has worked on numerous treatment plant projects (both greenfield and…
Julie Fasolas
September 29, 2023

Domenec Jolis

Dr. Domènec Jolis has more than thirty-five years of experience in wastewater treatment engineering, with special emphasis on biological treatment. He has led numerous research projects covering many unit processes including primary, secondary, and tertiary treatment as well as anaerobic digestion and solids handling and has published extensively on the results. While working at publicly owned treatment facilities on optimization,…
Julie Fasolas
September 29, 2023