“…The regional study of the Mississippi embayment (Gushing and others, 1970;others, 1965, 1968;Hosman and others, 1968) and the multi-State study of the Claiborne Group (Payne, 1968(Payne, , 1970(Payne, , 1972(Payne, , 1975 were comprehensive and largely descriptive, and the summary appraisals of the groundwater resource in major river basins (West and Broadhurst, 1975;Baker and Wall, 1976;Bedinger and Sniegocki, 1976;Zurawski, 1978;Cederstrom and others, 1979;Terry and others, 1979) were qualitative evaluations of the availability of the resource and discussions of various management strategies rather than a quantitative cause-and-effect analysis. All of the studies cited above, plus many more that are not cited, provide a large body of data and interpretive material.…”