sheet 1. Map showing dissolved-solids concentration in ground water and approximate pumping levels in areas where wells will yield at least 500 gallons per minute (1,900 litres per minute)
sheet 2. Map showing dissolved-solids concentration in ground water and approximate pumping levels in areas where wells will yield at least 200 gallons per minute (760 litres per minute)
sheet 3. Map showing dissolved-solids concentration in ground water and approximate pumping levels in areas where wells will yield at least 75 gallons per minute (280 litres per minute)
sheet 4. Map showing dissolved-solids concentration in ground water and approximate pumping levels in areas where wells will yield at least 25 gallons per minute (95 litres per minute).