The Network is comprised of a two-person team based in Ellicott City, MD.

The Staff

Tom Schueler
Tom Schueler, Executive Director of CSN

Tom Schueler
Executive Director

Tom has more than 30 years experience in practical aspects of stormwater practices to protect and restore urban watersheds. He currently directs the Chesapeake Stormwater Network, a non-profit organization devoted to implementation of more sustainable stormwater practices across the Chesapeake Bay watershed. Tom directs the Chesapeake Bay Stormwater Training Partnership, which provides webcasts, workshops and on-line training modules to train engineers on new practices. Tom also serves as the stormwater technical coordinator for the EPA Chesapeake Bay Program. Tom also is active in promoting better stormwater regulations and permits in communities across the Bay. Tom founded the Center for Watershed Protection in 1992, and loves stream-walks, good scotch, and bad dogs. To contact Tom about all things stormwater send an email to:

David Wood
Stormwater Coordinator

David manages CSN’s annual webcast series and training workshops, and helps develop stormwater resources to support CSN’s 11,000+ member network.  Prior to joining CSN, David worked for the Chesapeake Research Consortium at the EPA’s Chesapeake Bay Program Office. While at the Bay Program Office, he supported programs to help states track, report, inspect and verify best management practices to meet the Chesapeake Bay TMDL.  David has his BA in Biology from St. Mary’s College of Maryland. When he is not in the office, you can probably find David out on a hike or in the stands at Camden Yards. You can reach David any time at

Board of Directors

The Network now has a distinguished board of directors to guide its growth and strategic direction, drawn from many disciplines and many different parts of the Bay.

Mary Gattis
Mary Gattis, Mary Gattis, LLC

Mary Gattis serves as the Acting President for CSN. Mary has worked on environmental issues in the public, private and non-profit sectors for the last 30 years. Most recently she worked within the Chesapeake Bay Program partnership as Coordinator of the Local Government Advisory Committee to the Chesapeake Executive Council (LGAC). In her capacity as LGAC Coordinator, Mary interacted with local governments throughout the 64,000 square mile Chesapeake Bay watershed. She served on several CBP Goal Implementation Teams and workgroups where she advocated for policies and programs impacting local governments’ participation in watershed protection and restoration. Mary previously served as senior environmental planner at the Lancaster County Planning Commission (Lancaster, PA) where she oversaw the development of the County’s first Integrated Water Resources Plan. She has extensive experience in Watershed Implementation Planning, Brownfields redevelopment, pollution prevention and solid waste management. She is currently working as an independent consultant in the areas of local engagement and environmental policy.

Ted Brown, Biohabitats

Ted Brown, P.E., LEED AP has over 25 years of experience in environmental restoration, watershed management and planning and stormwater management services. For the last 13 years, Ted has served as a practice leader and water resource engineer at Biohabitats.  His work includes stormwater BMP and green infrastructure planning and design, watershed planning and policy development, and stormwater and ecological master planning.  Prior to joining the Biohabitats Team, he worked for eight years at the Center for Watershed Protection developing innovative technical guidance relating to watershed assessment and management, stormwater management, NPDES regulatory compliance, and natural resource conservation. Ted has participated on the Chesapeake Bay Program’s Urban Stormwater Workgroup for several years and was a member of the BMP retrofit expert panel.

Bill Stack, Deputy Director of Programs, Center for Watershed Protection

Bill Stack is The Deputy Director of Programs with the Center for Watershed Protection where he has worked in that position for 8 years.  He has over 40 years of experience  in water resource protection and restoration programs related to water supply and source water protection, urban stormwater management, agricultural non-point source control, and flood management. Prior to coming to work for the Center Bill spent 30 years working for Baltimore City Department of Public works where he headed the Source Water Protection and MS4 Programs. Bill has a B.S in Biology from St. Mary’s College of MD and M.S. in Biology from Towson University and is a Professional Engineer.

Ruth Hocker, City of Lancaster

Ruth Ayn Hocker, P.E., D.WRE, CFM, is Manager of the Stormwater and Wastewater Collections Bureaus for the City of Lancaster, PA. She holds a bachelor’s degree in civil engineering technology from Pennsylvania College of Technology and a master’s degree in environmental engineering from Pennsylvania State University. She has a broad multi-disciplinary background that includes urban stormwater management, transportation design, low impact development, sustainable stormwater solutions, regional integrated water resource planning, state and municipal program development, and green infrastructure implementation. Ruth has over fifteen years of experience working in both public and private sectors, consulting, and international design. She is also a member of several professional organizations including WEF, ASCE/EWRI, AAWRE, and ASFPM, and serves of a variety of stormwater and wastewater-related committees.

Alana Hartman, Potomac Basin Coordinator with West Virginia DEP

Alana Hartman is the Potomac Basin Coordinator with West Virginia Department of Environmental Protection, partnering with watershed groups and the Chesapeake Bay Program to protect local rivers and streams. Alana has a B.S. in Biology from Northeastern University and an M.S. in Applied Ecology and Conservation Biology from Frostburg State University. Since CSN’s beginning, she has helped to coordinate its activities in the Great Valley region, where there is a unique headwaters perspective and tricky karst terrain. Alana enjoys raising her daughters in West Virginia, with plenty of outdoor adventures and live music.

Dave Hirschman, Hirschman Water and Environment, LLC

David Hirschman manages Hirschman Water & Environment, LLC, a consulting firm located in Charlottesville, VA, specializing in water resources planning and management. He has thirty-five years of experience with stormwater and water resources management in the public, private, academic, and non-profit sectors. Hirschman has worked across the country, developing stormwater and green infrastructure design manuals and specifications, designing green infrastructure projects, developing natural resources master plans, and orchestrating numerous trainings and workshops

Jim Caldwell, Director, Howard County Office of Community Sustainability

Jim Caldwell serves as the Treasurer for CSN. Jim has spent his career as a local government environmental manager in the Baltimore, Washington region. Jim was appointed the Director of the Howard County Office of Community Sustainability in December of 2014. Guided by principles of science, ingenuity, sustainability and stewardship, the Office engages in water quality, economic development, agriculture, energy and education initiatives.    Jim worked for Montgomery County Maryland for 25 years, and for 12 years he served as Director of the Department of Environmental Protection, overseeing natural resource protection programs for water, air, energy, and pollution prevention. His long dedication to environmental protection is grounded in training in wildlife zoology from Ohio State University and a MS in Environmental Management from American University.   Jim is a member of the Board of the Maryland Water Monitoring Council, and is also a member and past chairman of the Maryland Science Center’s, Science Advisory Council.

Joe Battiata, P.E. has been involved in stormwater management for 35 years, starting out with civil and stormwater consulting in DC Metro area, and then moving to the public sector where he served as the Stormwater Program Manager and Chief Engineer at the VA Department of Conservation & Recreation. Joe also served as a Sr. Hydraulics Engineer in VDOT’s Location & Design Division, developing VDOT’s first MS4 Permit and Permit Program. A few bumps on the forehead later, Joe served as a Senior Water Resources Engineer for the Center for Watershed Protection working on a wide range of projects including stormwater BMP design specifications and plan review training programs.  He continues to fine tune the stormwater design standards and implementation strategies working with developers and contractors in his current capacity as the Stormwater Program Manager for the City of Hopewell, VA.

Charlene Harper, PE, LEED AP is the Director of Engineering and Design at HG Design Studio in Richmond, Virginia.  Charlene has a Bachelor of Science degree in civil engineering and a Masters of Natural Resources focused on Global Sustainability, both from Virginia Tech.  Throughout her career, Charlene has been an advocate for low impact development and creative stormwater management design.  Through her work at Greenhorne & O’Mara (now Stantec), Timmons Group, Geosyntec and HG, Charlene has developed particular areas of expertise to include environmental site design; stormwater quality and quantity control retrofits; LEED and EISA 438 requirements; stakeholder engagement and consensus building; industrial and MS4 permit compliance strategies; and, mentoring and training others.  Her hobbies outside of the office include spending time with her family, running, reading and being crafty.