Maryland Stream and River Levels |

The United States Geological Survey has a number of stream gages located throughout Maryland. These estimate stream levels, discharges and record them over time. This data is published on the web and many stations allow users to plot custom graphs. Get updated Maryland river and stream levels from USGS
here.
Maryland Stream and River Level Alerts |

The United States Geological Survey has a system that will send you an email message when flood levels are reached on any steam with USGS gaging equipment that you have selected. Sign up
here to recieve Maryland stream and river level alerts.
Maryland Water Publications |

The United States Geological Survey has a number of publications related to water use and water resources in Maryland. View the water resource publications for Maryland
here.