Ann-Marie Mitroff

AnnMarie photoAs River Program Director for Groundwork USA, Ann-Marie Mitroff serves as a co-coordinator of the EPA Urban Waters Learning Network with partner organization, River Network. Using her 20+ years of on-the-ground experience in managing conservation and river projects in urban areas, she provides guidance and program perspectives to urban waters practitioners across the country including local Groundwork Trusts through the Urban Waters Learning Network. Ann-Marie is also Groundwork Hudson Valley’s River Program Director. For over a decade, she’s been responsible for implementing river restoration efforts including tree planting and invasives management, water quality and fish studies, wetland reviews, municipal stormwater/green infrastructure projects, and river clean-ups. She coordinated the City of Yonkers’ habitat plan and community engagement process on the 8-year Saw Mill River Daylighting project, completed in 2012. Prior to joining Groundwork, she developed and managed water and energy conservation programs for public and private utilities in Santa Cruz and San Jose California; Washington, DC; and Seattle. Ann-Marie has an MPA from Seattle University and a BA from the University of Washington. She is based in Yonkers, NY.


Diana Toledo

diana pixAs Leadership Development Director for River Network, Diana Toledo serves as a co-coordinator of the EPA Urban Waters Learning Network, along with partner organization, Groundwork USA. At River Network, Diana is responsible for developing and delivering training and consulting services so that leaders, organizations and coalitions working for freshwater protection are strong, effective and results-oriented. In that role, she provides support in the areas of strategic and campaign planning, project development, fundraising, board and staff development, and coalition building. Diana has over 20 years’ experience in river conservation and community organizing. Prior to joining River Network in 2006, Diana helped build one of the strongest networks of local watershed groups in the country through her work with the River Alliance of Wisconsin, and led various Great Lakes policy and funding initiatives while at the Wisconsin Coastal Management Program. Diana has a MS in Water Resources Management from the Nelson Institute for Environmental Studies (University of Wisconsin – Madison) and a BS from Indiana University – Bloomington. She is based out of Asheville, NC.


Maria Brodine

Maria Brodine

Based in New Orleans, LA, Maria Brodine is an Urban Waters Program Associate at Groundwork USA. Originally from the Southwest, she earned her B.A. in English and Anthropology from San Diego State University, then went on to obtain her M.A. in Anthropology and Education at Columbia University. After moving to New Orleans to study the history of water management practices, she became involved in doing applied work through Groundwork New Orleans, where she led and supported program and staff development, designed and implemented an interdisciplinary research program, and secured a variety of funding sources to expand organizational capacity. As Urban Waters Program Associate for the Urban Waters Learning Network, she provides support in research and analysis, writing and editing, translating and interpreting scientific data and reports, and program development in the areas of environmental anthropology and communication.


Erin Wall

Erin Wall is an Urban Waters Learning Network Program Associate with River Network based in Athens, GA. After earning a BS in Environmental Chemistry from the University of Georgia, she left the south for Montana’s Rocky Mountains to gain new perspectives on water management and how people interact with their watersheds. While in Montana, she worked for the U.S. Forest Service, at Montana State University where provided technical assistance to watershed groups across the state, and developed trainings through the Montana Watershed Coordination Council. With the Urban Waters Learning Network, Erin conducts research and outreach, develops training opportunities, assists with program development, and administers the online peer-to-peer network.



Stephanie von Stein

Stephanie von Stein is an Urban Waters Program Associate based in the New York office of Groundwork USA. She writes and curates content for the Urban Waters Learning Network website. Prior to joining the Urban Waters Learning Network team, Stephanie spent seven years with Waterkeeper Alliance, founding and managing Waterkeeper’s Asia program. Through capacity building, fundraising and technical support, she helped grow the Waterkeeper network in Asia to fourteen sustainable programs in seven years. Working for the Urban Waters Learning Network gives her the opportunity to compare the conservation, education and watershed management strategies of U.S.-based conservation groups to those of their counterparts in Asia. Practitioners in urban rivers across the world face many of the same issues and can learn so much from each other. Through the Urban Waters Learning Network, Stephanie enjoys contributing to that exchange.