Environmental Monitoring & Assessment Program

Tara A. Bongiorni Ajello, P.E.1, Mary L. Searing 2, Ronald A. Etzel, P.E. 3, William H. Frost, P.E. 4, Laurens van der Tak, P.E. 5

1 CH2M HILL, Herndon, VA
2 Office of Environmental and Cultural Resources, Anne Arundel County, Annapolis, MD
3 Bureau of Engineering, Anne Arundel County Dept. of Public Works, Annapolis, MD
4 KCI Technologies, Inc., Hunt Valley, MD
5 CH2M HILL, Herndon, VA

Anne Arundel County is developing a comprehensive Watershed Management Master Pan for the Severn River. This study will characterize the watershed's baseline conditions and resources, assess existing and potential concerns, and address short- and long-term opportunities and improvements. A major task in this effort is to develop a GIS based Watershed Management Tool (WMT) which will link watershed data and models to give County planners and development reviewers interactive information on how changes in land use, zoning, BMPs, and other watershed conditions affect the Severn River and its tributaries.

The Anne Arundel County Watershed Management Tool will incorporate existing County GIS layers and environmental data, stream assessment data collected during the project, and several modeling tools for the County staff to examine present and future conditions watershed. Baseline models will be provided (present and several future scenarios). The models contained in the tool are: