Description: This map from the U. S. Geological Survey Professional Paper 1403-1 shows the concentrations of aluminum in water samples from selected wells in the Upper Floridan aquifer, current to 1989. The dots are wells and the number represents aluminum concentration in micromoles per kilogram of water. There are 44 samples shown and they were chosen to give maximum areal coverage. Source: Craig L. Sprinkle, USGS Professional Paper 1403-1 (Washington, : U. S. Government Printing Office, 1989) 166 Map Credit: Courtesy the University of South Florida Library |
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