Includes Plate 1: Sample Numbers; Plate 2: Nitrate-N in mg/L; Plate 3: Chloride in mg/L; Plate 4: Laboratory Measurement of pH; Plate 5: Total Hardness in mg/L; Plate 6: Laboratory Measurement of Electrical Conductivity in μmhos/cm; Plate 7: Estimated Langelier Saturation Index (ELSI); Plate 8: Total Alkalinity in mg/L.