New to CAST?

Register to create and edit scenarios for reducing nitrogen, phosphorus, and sediment with varying best management practices to streamline environmental planning. Registration also includes access to additional data, tools and resources including CAST's monthly newsletter.

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CAST will be taken offline Monday, February 14, 2022 at 11:00 AM EST, for updates. Updates are expected to take a few hours. We apologize for the inconvenience.


RESOURCES

Develop A Plan

Get answers to your questions about how to use CAST to develop a plan.

Develop A Plan

Source Data

Download data tables including information on load sources and agencies, BMPs, animals, geographic references and delivery factors.

View Source Data

BMPs

View information on best management practices (BMPs) including calculations, a quick reference guide, and protocol and expert panel reports.

Learn More

Monitoring

View maps and graphs of monitored water quality data.

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Mapping Tools

View geographical information and shapefiles.

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Costs

Download BMP costs data and view cost profiles for each state and Chesapeake Bay Watershed.

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Track Progress

View helpful information on verification, river trends, how to submit progress data via NEIEN, and modeling Federal facilities.

Track Progress

Ecosystem Benefits

Get information about the complementary benefits to BMP implementation.

Learn More