Why Does the USGS Collect Streamflow Data?

The USGS monitors the quantity of water in many of New Hampshire and Vermont rivers, streams, lakes, and reservoirs as part of a cooperative effort between Federal, State, and local agencies. The streamflow information serves many purposes:

• Flood and drought forecasts

• Dam control and hydropower gene

• Water supply and treatment facilities

• Bridge and culvert design

• Water quality monitoring

• Land use and climate change effects

• Kayaking, canoeing, and fishing conditions

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