Join Our Cause

Help us work towards another successful project implementation. Our work would not be possible without the generous team of supporters that design, build and report on our projects. Not an engineer? No problem! Our organization goes beyond engineering and we would love your support with grant pursuit, fundraising, education curriculum development, website and social media support, or any other ideas that you can bring to the table. Now is the time to get involved! Click below to donate or join our team as a volunteer.

Kevin Marx, President

Kevin Marx graduated with a bachelor’s degree in architectural engineering from California Polytechnic State University, San Luis Obispo. Kevin has practiced structural engineering for 8 years in Sonoma County and specializes in winery, residential, and essential service structures. He joined EWB in 2021 and recently help implement the Amazonas 2023 system. Beyond EWB, you can find Kevin playing sports or experimenting in the kitchen.

Callie Charleton, Vice President

Callie graduated from Cal Poly, San Luis Obispo with a bachelor’s in environmental engineering in 2021. She became involved with EWB in 2018 helping to start a chapter at Cuesta College and presenting about the experience at the 2019 EWBUSA conference. In 2020, she authored a paper and presented it at the American Society for Engineering Education conference on the collaboration between community colleges and 4-year colleges in EWB. Outside of engineering, she enjoys travel, having been to 20 countries and lived in Spain teaching elementary school English.

Ryan Krostag, Project Lead

Ryan Krostag graduated with Bachelors and Masters degrees in Civil Engineering from California Polytechnic State University, San Luis Obispo. Ryan joined EWB in 2020 to help people with limited opportunities to increase their quality of life in ways that can be passed down to future generations. Outside of work, Ryan perfects his home brewing recipes and shares the exploits with friends and colleagues.

Christine Strong, Asst. Project Lead

Christine studied Civil Engineering at Cal Poly, San Luis Obispo, with an emphasis on structural design. She has been practicing structural engineering since 2020, including some time in residential design before moving into her current role in the temporary structural design and construction industry. Christine enjoys a busy schedule, filling her days with practicing yoga, cooking with friends, exploring local hiking trails, and picking up new hobbies.

Joe Giesa, Treasurer

Joe Giesa graduated with a Bachelors degree in Civil Engineering from California Polytechnic State University, San Luis Obispo. Joe is a practicing engineer with 3 years experience in Sonoma County. He joined EWB in 2021 because of welcome suggestions from friends and colleagues to combine his passion for volunteer work with his industry experience. Joe loves playing guitar and making music.

Chuck Corley, Secretary

Chuck graduated with Bachelors and Masters degrees in Electrical/Electronic Engineering from California State University Sacramento. Chuck retired from his career in 2021. Our longest standing volunteer, Chuck joined EWB in 2015 with a desire to use his engineering skills to help people. Outside of EWB, Chuck adventures through the outdoors – biking, hiking, skiing and snowboarding.

Dennis Johnston, Fundraising

Dennis graduated with a Bachelors degree in Architectural Engineering from California Polytechnic State University, San Luis Obispo. Dennis recently moved into construction in WA state after 4 years practicing as a structural engineer. He joined EWB in 2017 to help use his education for good. Outside of work, Dennis is usually enthralled in whatever random hobby has caught his eye, from ceramics to mountain biking.

Glenn Reese, Expert

Glenn works with all the chapters involved in the Loreto region of Peru. initially part of the Houston chapter, Glenn joined Sonoma county and leads the collaborative efforts of our work, helping to standardize our work, foster knowledge sharing, and coordinating complicated logistics during implementation season.

Steve Isaacson, Mentor

Steve Isaacson with Bachelors and Masters degrees form Kansas State University, and Long Island University, respectively. Prior to retirement, Steve served as a project manager for 16 years working MEP & Automation on large scale projects in the Bay Area. Steve joined EWB in 2017 to help provide safe water to the Peruvian Amazon. He had previously traveled the area and witnessed the need being filled through EWB projects. His favorite pastimes are being a steward on the country property he lives on, and keeping his two golden retrievers happy.