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Advocate Bios

Eliza Cava — Director of Conservation

Eliza 2Eliza joined ANS as Director of Conservation in 2016. She is an avid canoer and kayaker and believes that healthy streams mean healthy communities. Prior to joining ANS, Eliza spent five years at Defenders of Wildlife, analyzing federal projects and policies that touched upon a broad range of renewable energy, land management, and wildlife conservation issues. Before working  in environmental policy, Eliza was an environmental and outdoor educator in Maryland, Massachusetts, Tennessee, and Oregon. Eliza received a B.A. in Environmental Education from Swarthmore College and a Master of Environmental Science from the Yale School of Forestry and Environmental Studies, and is a Senior Fellow in the Environmental Leadership Program’s Chesapeake Regional Network.

Cathy Wiss — Coordinator of MD/DC Water Quality Monitoring Program

Cathy Wiss has served as the Maryland-DC Water Quality Monitoring Program Coordinator since March of 2008. She has participated in the ANS Water Quality Monitoring Program since 1996 and has been the Team Leader for a site in the Montgomery County Agricultural Reserve since 1998. Cathy is a leader in her District of Columbia community. Using her knowledge of water quality, she has worked to preserve streams, trees, and a wetland in her neighborhood and to encourage developers to incorporate Low Impact Development techniques into their projects. She also is on the environment committee of her church. She holds a Juris Doctor degree from Catholic University Law School and a Bachelor of Arts from Smith College, and has taken courses in stream protection and restoration, rain gardens, and wetlands ecology.

Monica Billger — Virginia Conservation Advocate

MonicaMonica Billger serves as the Virginia Conservation Advocate with Audubon Naturalist Society. An avid hiker and outdoor enthusiast, she has a passion for the environment and strongly believes in the connection between healthy streams and healthy people.

A 15 year political advocacy veteran, Monica has engaged communities and mobilized local, state and federal advocacy efforts on behalf of groups and organizations. She has worked with the American Physical Therapy Association (APTA) and the group’s Alabama and Indiana State Chapters, the Parkinson's Action Network and the National Kidney Foundation. Monica has also worked on numerous quality initiatives focused on improving health care outreach and communication strategies for federal and state agencies.

Monica also brings 10 years of clinical practice experience as a registered nurse. A native of Michigan, she has a bachelor’s degree in Nursing from the University of Michigan and a master’s degree in Public Policy from Georgetown University. Monica resides in northern Virginia with her family.