Executive Board
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Executive Board

Casey Mentzer


Casey is an engineer at the Truckee Meadows Water Reclamation Facility. He holds a B.S. in Chemical Engineering, a Master’s of Public Administration from the University of Nevada, Reno and is a registered Professional Engineer in Nevada. His journey as an environmental professional started by working for the Nevada Division of Environmental Protection where he was first introduced to wastewater treatment. He then joined the team at northern Nevada’s largest wastewater plant as an operator and gained his Grade IV Wastewater Treatment Plant Operator certification. He conducts the large majority of tours for the TMWRF and enjoys teaching students and community members about the amazing world of wastewater.”

Sabrina Rivera


Sabrina Rivera is a Utility Services Engineer with the City of Henderson. She has worked in the water/wastewater industry since her first internship and is passionate about this industry. Sabrina is a Professional Engineer in Nevada and California and she has worked with agencies throughout the southwest. She looks forward to making NWEA the best organization it can be by fulfilling its mission statement and supporting its members.

David Williams


I am the Mechanical Maintenance Supervisor for the Clark County Water Reclamation District. My Background is entirely mechanical, I have spent the last 25 years as a mechanic for several industrial equipment companies before joining the District in 2008. My current objectives are reliability-based improvements and work processes as well as assisting in design of new expansions of the District. I am born and raised in Las Vegas and enjoy knowing what I do makes a difference to our community.

Kamrun Ahmadi P.E.


Kamrun is a native Nevadan with a B.S. in Civil Engineering and M.S. in Civil & Environmental Engineering from UNR. Kamrun is currently an Environmental Engineer with Stantec. Since joining Stantec in 2018, he has been involved in a wide range of drinking water, municipal wastewater, and industrial wastewater treatment projects. He was first exposed to NWEA while presenting at an annual conference, and has since spent his time volunteering at conferences and assisting with student and professional outreach in northern Nevada. He enjoys the outdoors and spends his free time hiking and camping in the backcountry. Kamrun is committed and dedicated to NWEA and looks forward to continuing his experience as a member of the Executive Board.

Jake Jacobson

Past President

Jake moved to Nevada in 2008 and became active with the NWEA Executive Board attending meetings and co-established the collection system committee and workshops. Jake also created a local PWO based collections systems supergroup comprised of collection system supervisors and leads from all municipalities in the southern valley. This group would meet once a month and discuss miscellaneous topics from operations practices, exchanging org charts, vital emergency contact information for SSO’s, understanding available mutual resources, and lessons learned.

David Wozynski

PWO Representative

Dave “WOZ” Wozynski moved to Nevada in 2012 and his Nevada Wastewater journey began in 2014 at the regional Truckee Meadows Water Reclamation Facility. Dave worked his way through the TMWRF ranks and along the way earned Nevada Wastewater Treatment Plant Operator Grade IV and Nevada Plant Maintenance Technologist Grade II certifications. Dave currently is an Operations Crew Supervisor at TMWRF and throughout his career, he has worked tirelessly to improve and streamline the means, methods and consistency of Operator Rounds and the associated data and information collected. In 2017, Dave vetted, coordinated, configured and implemented an Electronic Operator Round Checklist System, which has become an integral part of the day-to-day activities of TMWRF and its staff.

Jennifer Diamond

WEF Delegate

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