Sienna Faessler, PE

Project Engineer

Sienna has multiple years of experience working on a variety of municipal infrastructure design projects. As a project engineer in the Municipal Infrastructure Service Line, she works on water treatment and distribution design, sewer collection and disposal design, and utility asset management. Sienna is particularly experienced in design, permitting, and construction administration for new treatment systems that remove per- and polyfluoroalkyl substances (PFAS) from drinking water in New England.  Sienna earned both a Bachelor of Science in Environmental Engineering and a Master of Science in Civil and Environmental Engineering from the University of Vermont.