Who We Are

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: watershedguy@hotmail.com.




David Wood
Stormwater Coordinator

David is the newest member of the Chesapeake Stormwater Network team. He comes from the Chesapeake Research Consortium, where he spent several years supporting the Chesapeake Bay Program’s Water Quality Goal Implementation Team and Urban Stormwater Workgroup. Prior to that, he served as Projects Supervisor for the St. Mary’s River Watershed Association, where he focused primarily on residential BMP retrofit projects. 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 Wood.CSN@outlook.com.


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.


Jennifer Zielinski
Jennifer Zielinski, President of CSN Board and Engineer at BioHabitats.

Jennifer Zielinski serves as the President of the Board for CSN. A water resources engineer with Biohabitats, Jennifer has over 14 years of experience in watershed and stormwater planning and policy development. She has worked with communities throughout the country on projects focusing on stormwater design and retrofitting, local stormwater and watershed program guidance, watershed planning, upland area pollution prevention assessments, better site design, and other watershed consulting areas. Before joining Biohabitats, Jennifer was program director at the Center for Watershed Protection (CWP), a nationally recognized non-profit that develops innovative technical guidance relating to watershed assessment and management, stormwater management, NPDES regulatory compliance, and natural resource conservation.


Andrew Gavin
Andrew Gavin, Treasurer of the CSN Board and Manager of the Monitoring and Protection Program at the Susquehanna River Basin Commission.

Andrew Gavin serves as the Treasurer of CSN. As the Manager of the Monitoring and Protection Program at the Susquehanna River Basin Commission,  his major work responsibility is directing the Commission’s efforts in developing and implementing projects related to water quality monitoring, protection, and restoration.  Prior to working for the Commission, Andrew held positions with a U.S. Department of Energy research consortium and the U.S. Geological Survey.  He holds a Master of Science degree from Northern Arizona University in geology, and a Bachelor of Arts degree from The College of Wooster in geology.



Anne Guillette
Anne Guillette, Secretary for CSN and runs Low Impact Design Studio.

Anne Guillette runs the Low Impact Design Studio, a small, women-owned firm with a focus on environmental site design (ESD, LID) solutions for municipal and commercial sites (new construction & redevelopment). She is a LEED Accredited Professional with a Masters Degree in Landscape Architecture and Regional Planning from the University of Pennsylvania, and has worked directly with national and regional stormwater experts and has designed, permitted and constructed hundreds of projects in Maryland and the District of Columbia. Ms. Guillette is also a part-time employee at the Center for Watershed Protection, and an Adjunct Professor at Anne Arundel Community College where she trains landscape contractors on rain garden design, construction, and maintenance. Anne recently launched a new business called LID RainSavers LLC – which designs and sells rainwater harvesting devices and was nominated to the Board of Directors for the American Rainwater Catchment Systems Association (ARCSA).


Erik Michelsen
Erik Michelsen,  Administrator Anne Arundel County’s Watershed Protection and Restoration Program

Erik Michelsen is currently the Administrator of Anne Arundel County’s Watershed Protection and Restoration Program and is charged with managing a billion dollar restoration program to clean up the County’s waterways and satisfy its Municipal Separate Storm Sewer System (MS4) and Chesapeake Bay TMDL requirements. He previously served as Executive Director of the South River Federation where he helped attain funding for and implement over $6 million in water quality improvement projects as well as spearhead the passage of a statewide requirement for stormwater utilities in Maryland’s Phase 1 MS4 jurisdictions. Prior to that, he was employed as a Project Manager by Underwood and Associates, an environmental consulting firm specializing in regenerative design. Mr. Michelsen is a past Chair of the Maryland Citizens’ Campaign for the Environment, the collected group of environmental organizations advocating to the Maryland General Assembly. He has served on the Chesapeake Bay Program Sediment Work Group and is a member of the Senior Scientists and Policymakers for the Bay. Mr. Michelsen graduated from the University of Richmond and did graduate work in experimental psychology at Villanova University.


Dr. Shirley Clark
Dr. Shirley Clark, Assistant Professor of Environmental Engineering at Penn State – Harrisburg

Dr. Shirley Clark currently is an Assistant Professor of Environmental Engineering at PennState– Harrisburg (PSH). She regularly teaches courses in hydrology, conveyance system design, open-channel hydraulics, erosion control and risk assessment at both the graduate and undergraduate level.  Shirley’s bachelors’ degree is in Chemical Engineering fromWashingtonUniversityand her doctoral degree is in Environmental Health Engineering from UAB. She has worked in the environmental field since 1987 and in water resources and stormwater since 1992. She is a registered professional engineer in the state ofAlabamaand is a Diplomat in theAmericanAcademyof Water Resources Engineers. She is a member of several professional organizations (WEF, AWRA, ASCE/EWRI, and AEESP) and serves on a variety (too many!) of stormwater-related committees.


Scott Crafton
Scott Crafton, Stormwater Project Manager for the Louis Berger Group

Scott Crafton, a Virginia Tech graduate and registered Landscape Architect in Virginia, retired in June 2006 as Assistant Director of the Virginia Department of Conservation and Recreation (DCR), after 30 years of state service largely related to stormwater management regulatory programs. Scott was also formerly Executive Director of the Virginia Chesapeake Bay Local Assistance Department and chairman of the EPA Chesapeake Bay Program’s Stormwater Work Group. Since retirement, Scott has worked part-time on projects for DCR and, subsequently, Virginia DEQ to assist with revisions of the Virginia SWM Regulations, to revise the Virginia SWM Handbook, and to establish a web-based Virginia Stormwater BMP Clearinghouse. Recently Scott was hired as a stormwater project manager for the Louis Berger Group, and currently he is contracted to the Virginia Department of Transportation helping them with MS4 permit compliance.


Steve Saari
Steve Saari, Watershed Protection Specialist, District Department of the Environment.

Steve Saari, is a watershed protection specialist with the District of Columbia Department of the Environment (DDOE) where he has worked for the past seven years. Steve has been in the watershed restoration field for thirteen years and has been working in the environmental field for the past twenty-one years. He started his watershed career at the EPA Chesapeake Bay Program and then moved on to the Interstate Commission on the Potomac River Basin where he worked as a watershed manager before coming to work with the District of Columbia. Steve is currently building a wooden sea kayak to that he can spend more time enjoying the beauty of the Chesapeake Bay.


Mary Gattis
Mary Gattis, Coordinator of the Local Government Advisory Committee, Alliance for the Chesapeake Bay

Mary Gattis works for the Alliance for the Chesapeake Bay as Coordinator of the Local Government Advisory Committee to the Chesapeake Executive Council (LGAC). Prior to joining the Alliance, Mary 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 chaired the Pennsylvania Department of Environmental Protection’s Urban/Suburban/Rural workgroup throughout the development of Pennsylvania’s Phase I and II Chesapeake Bay Watershed Implementation Plans (WIP) and currently serves on PA DEP’s WIP Management Team and Stormwater Offset workgroup. As LGAC Coordinator, she participates in several Chesapeake Bay Program workgroups and is a member of the Water Quality Goal Implementation Team’s Land Use workgroup. Mary holds a Bachelor’s in Business Administration from Belmont University and is a member of the American Institute of Certified Planners (AICP).


Suzanne Etgen
Suzanne Etgen, Coordinator of the Anne Arundel County Watershed Stewards Academy

Suzanne Kilby Etgen is the Coordinator of the Anne Arundel County Watershed Stewards Academy (WSA), a non-profit community engagement organization based at Arlington Echo Outdoor Education Center, Anne Arundel County Public Schools. The WSA trains and supports community leaders to coordinate environmental restoration and education throughout Anne Arundel County and is currently being replicated in several other counties throughout Maryland. As the Program Coordinator for WSA, Suzanne’s responsibilities include coordinating the Master Watershed Steward certification program, supporting certified Stewards in their education and restoration efforts and working with local and regional partners on the advancement of watershed restoration issues. Suzanne holds a BS in Environmental Science and a MA in Religion and Ecology, and serves on the Board of the Chesapeake Conservation Landscaping Council, the Epiphany Community and the Chesapeake Stormwater Network.



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