Section Officers

PECG River City Section Officers

John Murphy


John is a Senior Engineering Geologist (Supervisory) with the State Water Board’s Division of Water Rights and a licensed Professional Geologist and Certified Hydrogeologist. He holds a B.S. in Geology from St. Lawrence University (Canton, NY) and an M.S. in Geology from Binghamton University (Binghamton, NY). Before employment at the Water Board, John started his career in the petroleum industry as a Borehole Geologist with Schlumberger in Bakersfield, CA. John joined the Central Valley Water Board in 2016 as an Engineering Geologist and was later promoted to Senior Engineering Geologist with the Site Cleanup Program in 2020. John is also the current President of the Sacramento Chapter of the Association of Environmental and Engineering Geologists (AEG).

Brandon Roosenboom

President Elect

Brandon is a Water Resource Control Engineer and lead permit writer for the California State Water Resources Control Board’s Construction Stormwater Program. Before joining public service in 2018, Brandon was an environmental consultant in the Bay Area within the biomedical, healthcare, and technology sectors. He earned his B.S. in Biological Systems Engineering at the University of California, Davis in 2016. In his spare time, Brandon enjoys playing softball, fishing, and cooking for family and friends at get-togethers.

Kevin DeLano

VP Rank and File

Kevin is a licensed Geologist in the State Water Board’s Division of Water Rights and joined the State Water Board and PECG in 2015. Since then, He has worked in the Instream Flow Unit on watershed modeling, public outreach, and long-term flow policy in the Ventura River watershed. He also helped develop and implement drought emergency regulations in the Scott and Shasta River watersheds, focusing on local cooperative solutions and outreach. Kevin has a M.S. in Geology from Central Washington University and a B.S. in Geology from UC Davis. As River City Section’s Vice President of Collective Bargaining (Rank and File) for 2023-2024, He is excited to meet River City Section’s diverse Rank and File staff. His goals are to understand staffs’ concerns and help folks learn about their PECG protections and benefits (e.g., annual salary increases, flexible paid leave and telework, and professional licensure support). He would like to learn how PECG can support you.

Picture of the secretary officer.

Lydia Montgomery


Lydia Montgomery is a Water Resource Control Engineer at the California State Water Resources Control Board in the Division of Financial Assistance, Safe and Affordable Drinking Water Section. She began in 2019 working as a contract Junior Environmental Assistant for the State in the Division of Financial Assistance in the Underground Storage Tank Cleanup Fund. Lydia received a B.S. in environmental resources engineering from Humboldt State University.

Khristina Leyba


KhristinaRae Leyba is a Water Resource Control Engineer working for the Cleanup Fund at the State Water Resource Control Board. She received a B.S. in Environmental Engineering from the University of California, San Diego. Prior to starting her state service in Sacramento, she began her career with Dudek as an engineer in San Diego. Khristina enjoys camping, stargazing, mentoring, and exploring the outdoors with her family.


Lang Khang

VP Supervisory

Lang Khang, PE (he/him)

Lang has been working as an engineer in California government since his first position as a Water Resource Control Engineer (WRCE) in April 2016. Aside from the River City Section the VP Supervisory role, he also is the Chair to the Learning Resources Committee (LRC). Currently, Lang is a Senior WRCE within the Enforcement Section of the Division of Water Rights within the State Water Resources Control Board (SWRCB). He enjoys discussions related to SWRCB work, GIS, PECG, benefits, wildlife, games, food, science, and technology. Lang encourages River City Section members to reach out to him if there are questions, comments, suggestions regarding the PE/PG process or would like to coordinate study sessions with others.

Mohammad Biswas

VP at Large

Mohammad Biswas is an Assistant Telecommunications Engineer at the California Governor’s Office of Emergency Services – Public Safety Communications. Before starting his career with the state, Mo worked as an Electronics Engineer for the Department of Defense. He earned his B.S. degree in Electrical Engineering from the University of California, Davis in 2018. In his spare time, he enjoys playing pickleball court and watching football on Sundays.

Payman Alemi


I have been a PECG member since I joined the Water Boards in March 2016 and am excited to help the River City Section as the incoming secretary. I work as a senior water resource control engineer specialist in the Division of Water Rights. Outside of work, my hobbies are playing and watching sports and learning new languages. I am also a lifelong Sacramento Kings fan!