1. Water quality of the Edwards Aquifer and streams recharging the aquifer in the San Antonio region, Texas Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : For sale by Map Distribution Resource Type: Map Access & Availability: Loading
2. Water type and concentration of dissolved solids, chloride, and sulfate in water from the Ozark aquifer in Missouri, Arkansas, Kansas, and Oklahoma Author/Creator: Geological Survey (U.S.) Publication/Creation: Reston, Va. : The Survey, 1991 Resource Type: Map Access & Availability: Loading