The U.S. Geological Survey's Produced Waters app provides information on over 100,000 samples of produced water from the oil and gas industry, waters extracted from hydrothermal systems (geothermal water), and some additional water wells.

The Tennessee Department of Environment and Conservation provides an interactive map service through which users can find information on water quality assessments across the state. Information on monitoring sites, permitting, dams, siltation, streams and waterbodies, and habitat impairment, are all available through the map. Users can click through to find more information on specific locations.

Click here to access the TN DEC interactive map.

The South Dakota Geological Survey's Oil and Gas Resources map provides a large amount of information on South Dakota's geology and natural resources, including:

• Surface and bedrock geology
• Earthquakes
• Water quality
• Oil and gas fields and wells

The map allows users to select multiple layers that can be overlain on each other. By doing this, users can see how different features are related. More detailed data for specific locations can also be accessed through the map.

The New Mexico Bureau of Geology and Mineral Resources' interactive map of New Mexico provides a large amount of information on the state's geology and natural resources, including:

The Louisiana Department of Environmental Quality's Interactive Mapping Application provides information on Louisiana's geology and water resources in interactive map form, including:

• Air and water quality monitoring
• Surface geology
• Aquifers
• Hydrology
• Soils

Users can access local information with additional details by clicking on areas of the map or entering GPS co-ordinates.

Note: this application may take a few minutes to load.

The NC OneMap initiative, directed by the North Carolina Geographic Information Coordinating Council, provides a huge amount of information on North Carolina's geology, natural resources, and environmental management, including:

The Kentucky Geological Survey's interactive map provides a range of groundwater quality information for the state of Kentucky with data going back to the 1930's.

Users can modify the map to explore various groundwater pollutant types, regulatory programs, and more.

Click here to access the Kentucky groundwater quality interactive map

Source: Kentucky Geological Survey

The New Jersey Department of Environmental Protection's GeoWeb Map Viewer provides a large amount of information on New Jersey's geology, natural resources, and environmental management in interactive map form, including:

The Illinois State Geological Survey (ISGS) is the official repository for the records of existing wells that have been drilled in the state of Illinois. With records for over 700,000 wells, the interactive water wells map allows users to explore a range of information including the location, depth, and bedrock topography for all recorded wells in Illinois. Data for water and related wells exists for private water wells, engineering borings, and stratigraphic borings.