Watershed Information & Regional Watershed Conservation Plans

A watershed is an area of land that drains precipitation (rain and snow) into a stream, river, wetland, lake or ocean.  Watersheds can be large in scale, which are called basins. Watersheds that are small in size are called subwatersheds. Watersheds can cross state, county and municipal boundaries.

Pennsylvania has 6 major watersheds.  The 10-county SPC region falls primarily within the Ohio River Basin, with a small portion of Indiana County falling within the Susquehanna River Basin. 

To explore the Ohio River Basin, visit the following websites:

To explore the Susquehanna River Basin, visit the following websites:

Watershed Links

The following links provide general watershed information, detailed information on your watershed, and much more.

EPA’s Watersheds Information
This website has a variety of information, tools, funding sources, and much more.

Natural Resources Conservation District’s Water Information
Learn more about the water cycle, watersheds, and water resources in Pennsylvania.

EPA’s Surf Your Watershed
This website allows you to find your watershed. Once you locate your watershed, simply click on the first link, “citizen-based groups at work in this watershed,” to find a listing of organizations that are working to protect water quality. You may wish to contact one of these groups to find out about cleanups, monitoring activities, restoration projects and other activities.

USGS Water Resources of the United States
This website contains a plethora of information regarding USGS’s surface water, ground water, and water quality monitoring programs.  You can access stream flow data, watershed modeling information, GIS data, and much more. 

Regional Watershed Information & Watershed Conservation Plans

The following watershed information and watershed plans from within the SPC region are organized according to their respective watersheds, including the Allegheny, the Monongahela, the Ohio, and the Susquehanna.  Use the listing below to select your geographic area of interest.






Useful Information for Developing A Watershed Plan

EPA’s Handbook for Developing Watershed Plans to Restore and Protect Our Waters: This handbook is intended to help communities, watershed organizations, and state, local, tribal and federal environmental agencies develop and implement watershed plans to meet water quality standards and protect water resources. It was designed to help any organization undertaking a watershed planning effort, and it should be particularly useful to persons working with impaired or threatened waters. Visit the handbook here.

Center for Watershed Protection’s Watershed Planning 101: The Center promotes an approach to watershed management that considers all stages in the land development process from land use planning through land development and post occupancy. Depending on the level of urbanization in a given watershed, the management plan may focus more or less on any one of these tools. This approach to watershed management was first advanced in the Rapid Watershed Planning HandbookA series of guidance documents that provide more specific guidance on a restoration approach for managing small urban watersheds (~20-100 square miles) is also available at this link.  Additional resources for watershed protection and restoration are also provided at this link.

Raccoon Creek

Raccoon Creek is one of the many small watersheds
(also known as sub-basins) in the SPC Region.


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 Regional Information & Technical Resources


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Erin Kepple Adams
Claire Jordy

Pennsylvania Stormwater Regulations

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Watershed Information and Regional Watershed Conservation Plans

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