Back to Top

Leading the nation with clean water solutions...

Center Staff

Our staff have a wide range of experiences and training in various watershed topics, and are well-versed in the latest research, regulatory issues, field methods, local applications, engineering, planning, modeling, biology, stream ecology, monitoring, and other aspects of watershed work.  To contact the Center staff, call 410-461-8323.

Hye Yeong Kwon
Hye Yeong Kwon
Executive Director
As the Executive Director, Hye Yeong’s responsibilities include organizational management, fund-raising, and program development. Hye Yeong joined the Center in 1996 and combines her education and training to help lead the Center toward a multi-disciplinary strategy to protect and restore watersheds throughout the country. Her project experience has included a wide range of subjects, including environmentally sensitive site design, watershed planning, and consensus building. Hye Yeong has a B.S. in Biology, an M.S. in Management, and an MBA. Hye Yeong lives in Ellicott City with daughters Cassie and Isa, and enjoys playing football, traveling, scuba diving, camping, eating good food, and good company.
Bill Stack
Bill Stack, PE
Deputy Director of Programs
As the Deputy Director of Programs, Bill’s responsibilities include program and resource development, supervision, and marketing. With over 35 years of experience in the field, Bill is the senior resident expert on staff. Before coming to the Center, Bill worked in Baltimore City and also served as a past Center Board Member. Bill has a B.S. in Biology from St. Mary’s College of MD and a M.S. in Biology from Towson University. Bill lives in Carroll County, MD with his wife.
Karen Cappiella
Karen Cappiella
Program Director, Research
Karen is a former GIS guru who now focuses primarily on applied watershed and stormwater research. She enjoys researching emerging watershed issues, analyzing watershed data, and translating technical topics into easy-to-understand guidance. Special areas of interest include impervious cover measurement and urban forestry. Karen has been with the Center since 2000, and has a B.A. in Geography from Millersville University and an M.A. in Geography from East Carolina University. She lives in Frederick County with her husband and daughters, and enjoys playing soccer, cooking, and researching her family ancestry.
Greg Hoffmann
Greg Hoffmann, PE
Program Director, Practices
Greg has been with the Center for Watershed Protection since 2008. Through his work at the Center, Greg has had the opportunity to design numerous stormwater retrofits and develop stormwater regulations and guidance manuals for several states and communities. Greg has a master of engineering and a bachelor of science in environmental engineering from Michigan Technological University. He would be happy to discuss all things stormwater with you, but as a native Wisconsinite, would be just as happy discussing his beloved Packers.
Marlyn Argueta
Office Manager
A born and raised Marylander, Marlyn joined the Center in 2017. He graduated from the University of Maryland Baltimore County with a bachelor’s degree in history and an associate’s degree in business administration. Before joining the Center, he was the office manager for a construction company. After hours, you can find him at a DC United soccer game or coaching the South River High School soccer team. His passion for soccer and helping the community propelled him to be a finalist in the 2015 Major League Soccer Community MVP Award.
Lindey Brown
Financial Officer
Wondering who’s handling billing and invoices? Lindey has elevated the Center’s finances and accounting to higher accountability standards since 2005. Lindey has a BS in Accounting and loves spreadsheets and accounting.
Deb Caraco
Deb Caraco, PE
Senior Watershed Engineer
Deb has been a Center employee since 1996, and currently works for the Center remotely from New York State. Deb’s areas of focus include Illicit Discharge Detection and Elimination (IDDE), pollutant modeling, watershed analyses, stormwater design and stormwater program development. Deb has a Masters of Engineering in Biological and Environmental Engineering from Cornell University, and enjoys camping, kayaking, reading, cross country skiing, and gardening. Deb lives in Ithaca, NY with her husband Rob, children Desiree and Devin, and rabbit, Petunia.
Reid Christianson
Reid Christianson, PE, PhD
Senior Water Resources Engineer
Reid joined the Center in 2012 and works on a variety of projects including urban stormwater management designs, research on new practices, and strategic watershed planning. Reid made a 3.5 year stay in Maryland before heading west to Illinois, where he works remotely. Dr. Christianson is a Professional Engineer and has over 12 years’ experience in the water resources field. Prior to joining the Center, Reid worked for Iowa State University where he researched the impacts of agricultural best management practices and land use on water quality. In his spare time, Reid enjoys spreadsheet development, light weight programming, and “tinkering.”
Ari Daniels
Ari Daniels
Water Resources Engineer
Ari has lived in Falls Church and Charlottesville, Virginia, and also (including most recently) Portland, Oregon. A lover of all things outdoors, he especially loves the water. Starting in July, 2014, he brings various types of work and life experience to the Center, including construction and project management, non-profit administration, environmental activism, outdoor adventure leading, teaching, and a seemingly random assortment of others. He earned a B.S. in Civil and Environmental Engineering from the University of Virginia. In his free time, he enjoys biking, kayaking, climbing, and writing.
Jordan Fox
Watershed and Stormwater Technician
Jordan interned for the Center over the past year and in her new role will provide project assistance on field monitoring, data entry and management, as well as field assessments, research and GIS. Jordan is a recent graduate of Washington College in Chestertown, Maryland. She double majored in Biology and Environmental Science and minored in Chemistry. Jordan loves the environment and and is thrilled to continue her work with the Center. Her extensive field and lab experience make her well-suited to help the Center with monitoring and other watershed and stormwater projects.
Lisa Fraley-McNeal
Lisa Fraley-McNeal
Research Specialist
Lisa has over 10 years of experience in urban watershed and stormwater management. She originally joined the Center in 2006 and recently returned after spending the past year as a Program Manager for Anne Arundel County’s watershed Protection and Restoration Program, where she oversaw program elements related to the County’s Stormwater Remediation Fee. Her areas of expertise include GIS and field methods for watershed assessment, watershed planning, and applied research on topics related to watersheds and stormwater. She served as one of the Sediment and Stream Corridor Restoration Coordinators for the Chesapeake Bay Program and helped with the development of the Stream Restoration Expert Panel recommendations. Lisa’s interests include fluvial geomorphology, urban hydrology, and sedimentology. She has a B.S. degree in Geography and Environmental Systems, with a writing minor and cartography certificate from the University of Maryland, Baltimore County. Lisa also has a M.S. degree from the University of Maryland, Baltimore County in Marine and Estuarine Environmental Science. In her spare time, she enjoys riding her motorcycle, lifting heavy weights at Crossfit, and spending time with her husband, Jeff and dog, Summer.
Laura Gardner
Laura Gardner, PE
Water Resources Engineer
Laura started at the Center in 2012. She has a B.S. in Biological Systems Engineering and a M.S. in Civil and Environmental Engineering from the University of Wisconsin – Madison. Laura has experience in project management, stormwater retrofitting, best management practice (BMP) design, watershed assessments, plan reviews, and updating stormwater management guidebooks. Laura enjoys spending her free time reading, exploring the sites of Maryland and DC, and, in winter, searching for places to cross-country ski. Laura and her husband Jeffrey live in Catonsville.
Mike Hickman
Water Resources Designer
Bill Hodgins
Bill Hodgins
Senior Water Resources Engineer
Bill resides in Bluffton, SC and joined the Center from the City of Savannah where he served as the Environmental Administrator for the Stormwater Management Department for 9 years. Bill was responsible for the City’s Phase I MS4 permit and managed the Department’s GIS and Site Plan Review programs. Most recently he oversaw the development of the department’s Asset Management Program. While at the City he particularly enjoyed implementing GIS in the stormwater maintenance program and using it to identify areas with troublesome illicit discharges, leaf fall or pipe restrictions. Prior to the City he was in private environmental consulting to industrial trade associations, and held corporate and manufacturing plant positions in the pulp and paper and fiberglass industries. When away from his work Bill enjoys walks with his wife, Ninette, gardening and woodworking. He is working on projects made from hickory trees milled from his rural home.
Neely Law
Neely Law, PhD
Director of Education and Training
Since joining the Center in 2004, Neely’s primary responsibilities include applied research in the areas of stormwater and watershed management. Recent projects include leadership on Chesapeake Bay Program Expert Panels, stream restoration and health, and nutrient reduction credit development. As part of the research and other applied Center projects, Neely provides data synthesis and analyses, monitoring study designs, survey development and writing technical reports and management plans. She has additional experience in public education/teaching, community outreach and land use planning and helping the Center move forward with workforce development certification in the stormwater management field. Neely has a B.S. in Environmental Studies and Urban Planning from the University of Waterloo, an M.A. in Geography from the University of Toronto and a Ph.D. in Geography from the University of North Carolina-Chapel Hill. Neely lives in Leesburg with her husband and three children.
Julie Schneider
Julie Schneider
Watershed Planner
Julie has over 12 years of experience in urban watershed and stormwater management. Since joining the Center in 2005, she opened a Philadelphia, Pennsylvania satellite program office. In this role, Julie is working with communities in Pennsylvania to help meet local TMDL and stormwater permit needs. Her areas of expertise include GIS and field methods for watershed assessment, watershed planning, and review of local codes and ordinances. She received her B.S. in Environmental Science from the SUNY University at Buffalo and a M.S. from SUNY College of Environmental Science and Forestry. Julie lives in Glenside, PA with her husband and sons.
Bryan Seipp
Bryan Seipp
Watershed Manager/Professional Forester
Since joining the Center in 2009 Bryan’s primary role has been to work with local governments to meet water quality goals. His responsibilities at the Center include project implementation, watershed planning, developing TMDL strategies for local governments, GIS mapping and analysis, and conducting field assessments and training workshops. Prior to working at the Center, Bryan worked for the Maryland Department of Natural Resources as a Watershed Forester and the Potomac Conservancy as the Director of Restoration. Bryan has a B.S. in Forest Resource Management from Virginia Tech, is a licensed professional forester in the state of Maryland, a Certified Urban Nutrient Management Planner in Virginia, serves as Chairmen for the Maryland/Delaware chapter of the Society of American Foresters, and has been appointed by the Governor of Maryland to serve on the Sustainable Forestry Council. Bryan lives in Catonsville, and outside of work hours he enjoys photography, mountain biking, fishing, and scuba diving.
Chris Swann
Chris Swann
Watershed Planner/CIO
Chris has been a watershed planner at the Center for fifteen+ years. His work time is split between two responsibilities; researching and writing technical guidance on watershed management issues, and trying to keep the Center’s technology in check and functioning properly. Since joining the Center in 1997, Chris has contributed in the writing of numerous Center publications, including the Urban Subwatershed Restoration Manual series and the Better Site Design Manual. Chris has a B.S. in Natural Resources Management from the University of Maryland, as well as a B.S. in Biology from James Madison University.
Laurel Williamson
Laurel Williamson
Stormwater and Watershed Planner
Laurel is a Stormwater and Watershed Planner based out of Charlottesville, VA. Her past experience includes working for the County of Albemarle, VA on stormwater BMP maintenance inspections and coordinating the citizen water quality monitoring program and other projects for the Alliance for the Chesapeake Bay. She has a B.A. in Environmental Science and a B.A. in Environmental Thought & Practice from the University of Virginia. Laurel, who grew up in southern France and in the Shenandoah Valley of Virginia, enjoys playing music, cooking, and exploring the world of innovative stormwater management.
Carol Wong
Carol Wong, PE
Water Resources Engineer
Carol is a Maryland native and joined the center in August, 2014. She graduated with her B.S. in Mechanical Engineering from the University of Maryland and her M.S. in Environmental Engineering from Stanford University. Prior to joining the Center, Carol worked for the private sector as a consultant, managing environmental research and development projects. She is also a proud alumni of the Chesapeake Conservation Corps. Carol has experience in program management, bioretention research, water resources, and water quality monitoring. In her free time, she likes to cook, eat, hike, rock climb, and kayak.
Ellen Zagrobelny
Water Resources Engineer
The Center's newest employee, Ellen Zagrobelny, joined the team as a Water Resources Engineer, coming from civil engineering consulting. Ellen has designed stormwater management facilities for a variety of localities, from the oil & gas industry in PA and WV to urban municipalities the Chesapeake Bay Watershed. Ellen holds a B.S. in Civil Engineering from the University of Virginia, and lives in Virginia where her family raises pastured poultry and livestock. Moments not engaged in stormwater management and farming find Ellen reading Flannery O’Connor, working in the garden, and preparing meals for the farm community.