Low Flow Database

Most small streams and many segments of larger rivers are not routinely monitored in the state of Massachusetts for major changes in patterns of streamflow. However, some rivers experience extreme amounts of dewatering, particularly during stressful summer and fall months when streamflow is naturally lowest and human water use is greatest.

The Low Flow Database summarizes existing information about streams with extreme low-flow problems and the extent of streamflow alteration and depletion on a statewide basis. Through the basin links, you can find what information may be available for your watershed and local streams. You’ll also find basic information on the Causes and Effects of streamflow alteration, a helpful Glossary for those pesky terms, and opportunities to find out more through our Further Research page. We hope that this information will raise awareness among individuals, communities and state agencies about the extent of the low flow problem; empower local communities to prevent further streamflow reduction; and enable citizens and officials to restore more natural streamflow patterns and volumes in their rivers.

Click on a watershed below for site information, photos and streamflow data.

Please note a link to a site does not necessarily constitute an endorsement.

For comments, suggestions, or new observations please contact: Margaret Kearns, Watershed Ecologist at
Margaret.Kearns@state.ma.us

This project is funded in part by the Massachusetts Environmental Trust.