Engineering Internship (Fall 2026)

Engineering Internships- Paid Deadline to apply: October 13, 2026 About Us NapaSan provides wastewater collection and treatment services to the residents and businesses in the City of Napa and surrounding vicinity. NapaSan strives to recover resources from the wastewater stream by producing recycled water, beneficially reusing biosolids, and creating green energy on-site to power the wastewater treatment process. At NapaSan, engineers are involved in projects from initial conception through evaluation of alternatives, design, procurement, construction, and operation. NapaSan is a medium-size agency, and engineers are involved in a wide-range of projects and solutions requiring creativity and innovation. NapaSan’s engineers truly make a positive impact on the agency, community, and the wastewater industry. Compensation and Duration $25/hour. Part-time, 20 hours per week, Knowledge, Skills, and Abilities Needed • Competency working with computers and willingness to learn new applications • Ability to work as part of a team • Desire to learn skills that can help lead to a future career in engineering Experience That Interns Will Gain • Work on real engineering projects alongside licensed professional engineers • GIS and AutoCAD software • Reading plans, maps, and standard specifications • Working as a team and building workplace relationships • Wastewater treatment plant and construction site visits Minimum Qualifications College student with engineering major and/or engineering-related coursework. Location-In Person Only (No remote option) 1515 Soscol Ferry Road, Napa, CA 94558