Meet the Crew

Tim Fitchett is a staff attorney and resident director at Fair Shake Environmental Legal Services, a non-profit environmental law firm based out of Pittsburgh, PA and Akron, OH. Tim is also on the Board for Calliope House, an organization devoted to promoting folk music in Pittsburgh and the surrounding area. Tim joined Three Rivers Waterkeeper in December of 2020 and is excited to help our rivers flourish. ​

​Rachel joined the Global Waterkeeper Alliance team in 2007 as Operations Assistant and has held various titles over the years. Rachel has always had a passion for the outdoors and conservation and has experience with natural resource management, wildlife photography, ecotourism, and various facets of sustainability. Before starting at Waterkeeper Alliance, Rachel learned about the organization while volunteering with and working for Hackensack Riverkeeper at their canoe and kayak livery in Secaucus, NJ. She holds a B.A. in Environmental Studies from the University of Vermont, an M.S. in Sustainability Management from Columbia University, and is a LEED Green Associate. Rachel lives in the Hudson Valley, and while not in the office she can most likely be found skiing, backpacking, hiking, at a crossfit class, or cheering for the Pittsburgh Steelers.

Annie Guadagnino is the Program Coordinator for the The Pennsylvania Center for Women and Politics (PCWP) at Chatham University. Before joining PCWP's staff in 2012 she was a Campaign Director for Fund for the Public Interest and a Campus Organizer for the Public Interest Research Group. Annie served from 2017 to 2019 as a member of the YWCA Young Leaders Board. Annie is a 2009 graduate of the University of Michigan with a BA in Environmental Studies and a minor in Political Science.

Emily Constantine Mercurio is a big thinker and a lifelong learner. She is an experienced geoscientist and an expert in mapping, field geology, GIS, remote sensing, and geospatial technology. As co-founder and CEO of CivicMapper, Emily draws upon more than 20 years of experience as a leader in map-based technology projects. Her current work is focused on creating spatially-enabled applications that empower decision making on the front lines of climate change, infrastructure, and social equity. Emily is a licensed professional geologist in the state of Pennsylvania. In addition to service on the Three Rivers Waterkeeper board, she also sits on the board of the Pennsylvania State University Graduates of Earth and Mineral Science. She enjoys gardening, visiting hot springs, making art, and spending time on the water with family and friends.

Gavin White is a dedicated public space practitioner who serves as Riverlife's Director of Planning and Projects. At work and at home, Gavin organizes and engages in public realm projects, planning, and policy discussions, aiming to make the region healthier, wilder, more fun, and more beautiful.

For nine years, Gavin served as Secretary for his neighborhood's community development corporation, Hazelwood Initiative, engaging residents and stewarding property in the neighborhood with the goal of development without displacement. Regionally, he supports grassroots organizations pursuing social change as a member of the grantmaking committee of the Three Rivers Community Foundation. Beyond the three rivers, he serves as chair of the Governance and Finance committee for World Urban Parks, the leading global community of parks, public spaces and recreation professionals.

Gavin grew up in Mars (Pennsylvania) and graduated with degrees in Architecture Studies and History from the University of Pittsburgh. When he’s not at work, you can find him on the trails, in the parks, or at home in his workshop building something out of local lumber.

Joshua Powell is an engineer at Broadcom, Inc., a designer, and supplier of semiconductors and infrastructure software products. Joshua has spent the past 15 years working closely with non-profit organizations focused on environmental conservation and restoration by building award-winning software. Joshua joined Three Rivers Waterkeeper in December 2020. In his free time, he enjoys gardening and spending time outdoors with his family.

Sean is the Executive Director of Hollow Oak Land Trust, a conservation organization that protects and connects greenspace in the Pittsburgh International Airport Corridor. With a BA in Biology from Allegheny College and an MA in Professional Writing from Carnegie Mellon University, Sean helped build Venture Outdoors as a regional leader in outdoor recreation from its inception in 2001 to 2010. He also served as Development Director for Riverlife, supporting sustainable riverfront development in downtown Pittsburgh. Currently, Sean manages the six conservation areas owned by Hollow Oak Land Trust and works with municipalities and private landowners to develop greenways in the airport corridor.

Vishal Vyas brings with him an impressive wealth of experience, spanning over two decades, in various key domains such as Procurement, Supplier Relationship Management, Marketing, Product Management, and Program Management. His expertise has been honed through dynamic roles in both the Automotive and Medical Device Industries, making him a true global professional. Currently, Vishal holds the prestigious position of Sourcing Leader with Philips Healthcare, a role that showcases his exceptional leadership and strategic skills in the world of healthcare and technology.

Vishal holds a Bachelor of Science degree in Plastics Engineering from Ferris State University, demonstrating his strong foundation in engineering. In addition to that, he has further enriched his knowledge by completing an Executive MBA program at Cleveland State University, equipping him with valuable management and leadership skills. To top it off, Vishal has earned a Business Analytics certification from Harvard Business School, demonstrating his commitment to staying at the forefront of business innovation and data-driven decision-making.

Vishal Vyas is a dedicated family man. He resides in Gibsonia, Pennsylvania, with his wife, Minal Vyas, and their two wonderful children, Avish and Arya, who undoubtedly serve as a source of inspiration and motivation for his contributions to our organization. Vishal is not just a leader in the corporate world but also an active and engaged member of his community. He takes an active role in several community activities, reflecting his dedication to making a positive impact beyond the boardroom.