OARS Staff

Alison Field-Juma - Executive Director
Alison joined OARS as Policy Director in June 2005 and became Executive Director in 2010. Alison is Vice-Chair of the Sudbury, Assabet and Concord Wild & Scenic River Stewardship Council, Chair of the Aquatic Invasives Management Subcommittee of the SuAsCo Cooperative Invasive Species Management Area (CISMA) and past CISMA chair, a member of the 495/MetroWest Partnership's Water Resources Committee and represents OARS on other state and regional advisory boards. Prior to joining OARS, Alison was Director of the Environmental Governance Programme of the African Centre for Technology Studies, and was the founding Managing Director of Initiatives Ltd., a scholarly publishing company, both in Nairobi, Kenya. Alison holds an MSc in Natural Resource Policy and Planning from Cornell University, a BSc in Biology from Tufts University, and is Municipal Vulnerability Preparedness certified.

Julia Khorana - Development Director
Julia has directed membership and fundraising for OARS since 2005. A resident of Stow, she became an OARS volunteer in 1992 helping with public outreach and organizing the Annual River Cleanup. Julia serves on the Appalachian Mountain Club's Conservation Programs Committee, the Outdoor Leadership Development Committee, and Chairs the Boston Paddlers Committee. Julia holds a BS in Biology from MIT and prior to coming to OARS was a free-lance graphic designer.

Bill Froberg - Education Coordinator
Bill joined OARS in the spring of 2010. Bill teaches Physics in a local public school district during the school year, and brings his teaching outdoors during the summer months as part of OARS. He serves on the Acton Conservation Commission and enjoys hiking, birding, and kayaking on our local waters. Bill holds a Bachelor’s degree in Mechanical Engineering from the University of Minnesota, and Masters degrees in Engineering Management and Business Administration from Rensselaer Polytechnic Institute.

Ben Wetherill - Water Quality Scientist
Ben joined OARS in May 2019 to run the water quality monitoring program. He is also an independent consultant in environmental sensing, water quality analysis and GIS mapping. He loves to canoe and sail, and organizes commuter bike trail advocacy. Ben holds a BA from Wesleyan University, an MBA from the University of Pittsburgh Katz Graduate School of Business, and an MSc from University of Massachusetts Graduate School of Marine Sciences.