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New Hampshire Department of Environmental Services

Seacoast Groundwater Availability Project


Population growth and accompanied development over the past 20 years have led to an increase in ground-water use from surficial and fractured-bedrock aquifers in southeastern New Hampshire. New roads, parking lots, buildings, homes, and other development-related changes have created impervious surfaces that decrease recharge to aquifers. The combined effects of the recharge losses and increased withdrawals raise serious questions about the availability of the ground-water resources in the region. In response to these questions, the State of New Hampshire (Department of Environmental Services, NH Geologic Survey and NH Coastal Program) and the United States Geological Survey are working together to provide southeastern New Hampshire communities with new tools and data. We are hopeful that the communities will use these products to make better-informed decisions about water supply during future growth planning.

Maps showing the recent population change in New Hampshire over the past. Bars are exaggerated. (From: The Society for the Protection of New Hampshire Forests)


To develop new data and tools for coastal communities, the water industry, and regional and state planners to help answer questions such as: What is our current water use? How much water is available for use in our community? Are there tools that can help us to make better decisions on regional water supply?

NH Department of Environmental Services | 29 Hazen Drive | PO Box 95 | Concord, NH 03302-0095
(603) 271-3503 | TDD Access: Relay NH 1-800-735-2964 | Hours: M-F, 8am-4pm

copyright 2017. State of New Hampshire