American Bottoms Region

ISWS has published a report on the American Bottoms region, which includes portions of St. Clair, Madison, and Monroe counties adjacent to the Mississippi River.

The water supply sources for the region primarily consist of the Mississippi River and the connected sand and gravel aquifer deposited and created by the ancient Mississippi River. In general, the aquifer and the Mississippi River provide significant amounts of available water for supply. However, in some areas of the region, a history of poor industrial waste disposal has led to the contamination of some groundwater.

Story Maps

• Hydrogeology of the American Bottoms Region
• Regional Demands
• Risk to Groundwater Supplies in the American Bottoms Region
• Surface Water Supply
• Watershed Characteristics
• Streamflow Assessment
• Water Supply Reservoirs

Report

American Bottoms Assessment of Water Resources for Water Supply