This is one of a series of maps that describe the geology and related natural resources of the Richfield 2° Quadrangle, Utah. The purpose of this map is to show the general chemical quality of ground water by ranges of dissolved-solids concentrations. The water quality varies considerably with depth in some areas; thus, the actual concentrations of dissolved solids of water in some aquifers locally may be somewhat larger or smaller than shown depending on the depth of those aquifers. This map is intended only for general planning purposes. Detailed site-specific information about general chemical quality of ground water in most parts of the map area can be gained only by special on-site investigation.