1. Hydrogeology of clastic Tertiary and Cretaceous regional aquifers and confining units of the southeastern coastal plain aquifer system of the United States Yale Public content 1989. 2002-06-01T04:00:00Z. 2002-06-01T04:00:00Z. Geological Survey (U.S.). The Survey ; For sale by Map Distribution. English. Public. South Atlantic States.