Test wells in Dallas and Sumter counties, Alabama penetrated deep Cretaceous aquifers that are sources of future ground-water withdrawals. The test well in Dallas County was drilled to a depth of 1,460 feet, and the test well in Sumter County was drilled to a depth of 2,311 feet. The deep aquifers in Sumter County are in an area of future residential and industrial development along the Tennessee-Tombigbee Waterway. Descriptions of drill cuttings are given in the report.