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 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 - Director of Finance and Development
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 AMC Inter-chapter Paddlers Committee. Julia holds a BS in Biology from MIT and prior to coming to OARS was a free-lance graphic designer.

Ben Wetherill - Water Quality Scientist
Ben joined OARS in the spring of 2019 to lead the water quality monitoring program. Ben has been a freelance consultant providing support with water monitoring projects and specializes in water data analysis and water monitoring sensor technologies. He worked for several years managing the lab and leading water quality monitoring projects at the Cohasset Center for Student Coastal Research, and taught high-school water science and technology. Ben has a BA from Wesleyan University, an MBA from the University of Pittsburgh, and a Master’s degree in Environmental Science & Technology from UMass Boston. Ben loves canoeing, kayaking, sailing, and hiking, and he is an active advocate for safe biking infrastructure in Boston.

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 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.