PECG River City Section Officers
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.
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).
VP Rank and File
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.
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.
Tim is a Water Resource Control Engineer at the State Water Resources Control Board in the Office of Research, Planning, and Performance. Before starting state service, Tim worked in industry and consulting. He received his B.S. in Environmental Engineering from UC Riverside and his M.S. in Civil Engineering at CSU Sacramento. When not at work, he can be found hiking, traveling, and talking to the monsters under his bed.
Kristi is a Senior Water Resources Control Engineer (Supervisory) with the Central Valley Water Board in Rancho Cordova. She is a licensed Civil Engineer and has a B.S. in Environmental Resources Engineering from Humboldt State (now Cal Poly Humboldt). Kristi began her career working for private consulting firms in the Sacramento area before joining the Central Valley Water Board Site Cleanup Program in 2007. She was promoted to a Senior WRCE in the program in July 2021. Kristi has previously held several positions with PECG including Corporate VP at Large, Bargaining Team member, and River City Section President. She is currently the Chair of the Specialty Engineers and Classifications Committee and a member of the Supervisory Meet & Confer Team. In her spare time, Kristi likes to hang out with her two silly dachshunds, hike in the mountains, go wine tasting, and enjoy time with her family and friends.
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.
Jessika is an Engineering Geologist with the Division of Financial Assistance at the State Water Resources Control Boards in Sacramento. She holds a B.S. in Geology from California State University Sacramento and is currently licensed as a Geologist-in-Training. Prior to employment at the Water Boards, Jessika worked for Caltrans as an office assistant, and then as a Structural Design Technician. Jessika feels that it should incur a fine to call yourself a geologist if you don’t enjoy nature. Some of her other hobbies include traveling, D.I.Y. crafts, and devouring anything related to science fiction or fantasy.