The water-quality of New Hampshire and Vermont water bodies are monitored by state, federal, and local agencies, universities, and volunteers. USGS data are used to characterize waters, identify trends over time, identify emerging problems, determine whether pollution control programs are working, help direct pollution control efforts to where they are most needed, and respond to emergencies such as floods and spills.
All New Hampshire and Vermont data collected by the USGS are stored and made available to the Nation through the public NWISWeb portal which provide access to water-resources data collected at approximately 1.5 million sites in all 50 States. Annually, the USGS finalizes and publishes the daily data in a series of Annual Water Data Reports.
The links below allow you to find information and data about water-quality in New Hampshire and Vermont.
