Water Well Database

The Water Well Information Law, passed in 1987, requires the Maine Geological Survey to collect information on new water wells in Maine. This information is essential to any effort aimed at understanding Maine's ground water resources. In addition, the information is useful to communities considering new water supplies or in their planning efforts, to developers and businesses, to consultants investigating water supply or quality issues, to drillers, and to agricultural irrigators.

A database containing over 45,000 located wells is available for download. This database contains information on all wells in the master database which could be geographically located. Data points have been located by GPS, by street address locations, and by using tax maps in combination with air photos so location accuracy varies. The database includes coordinates and descriptive information such as well yield, depth, overburden thickness, well use, and well type. This information is also portrayed on the Bedrock Ground-Water Resources Basic Data Maps in PDF format.

The following files are available in zipped file format last updated February 24, 2014. Click on the links to download.

Maine Geological Survey Water Well Database (Microsoft Access format, 1.9 Mb)

Maine Geological Survey Water Well Shapefile (ESRI shapefile, 2.9 Mb)

Last updated on February 24, 2014