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Table 2 Percentage of constituents of the groundwater samples and ion balance

From: Quality modeling of drinking groundwater using GIS in rural communities, northwest of Iran

Villages Cations (%) Anions (%) Ion balance
  Ca Mg Na K F Cl SO4 HCO3 NO3 Σ Cations (meq/l) Σ Anions (meq/l) Error
V1 50.06 40.13 6.61 3.21 0.27 18.53 8.53 72.51 0.17 3.99 3.96 −0.36
V2 47.83 9.11 41.68 1.38 0.06 32.41 20.73 40.99 5.80 16.69 16.53 −0.47
V3 50.06 42.64 4.90 2.41 1.02 18.27 1.24 77.45 2.02 3.19 3.09 −1.61
V4 23.92 47.93 25.60 2.55 0.22 17.56 19.67 61.22 1.33 5.01 4.82 −1.91
V5 22.19 66.71 9.67 1.42 0.53 19.88 2.68 74.92 2.00 1.80 1.70 0.10
V6 44.93 27.91 25.28 1.87 0.12 23.59 18.05 56.49 1.75 8.88 8.61 −1.57
V7 40.22 40.30 16.05 3.44 0.29 10.31 9.28 75.77 4.36 2.98 2.74 0.24
V8 24.13 29.02 45.30 1.55 0.25 31.22 19.03 46.94 2.56 8.27 8.49 1.33
V9 47.42 17.28 33.51 1.80 0.11 36.51 23.39 37.46 2.53 9.26 9.58 1.69
V10 37.71 23.75 36.09 2.45 0.15 21.19 17.51 58.80 2.35 7.41 7.19 −1.53
V11 18.32 47.19 31.14 3.35 0.17 6.65 36.09 56.41 0.68 12.21 12.72 2.07
V12 18.72 48.78 30.12 2.38 0.10 8.87 40.04 48.61 2.37 10.66 10.17 −2.35
V13 33.95 47.63 16.33 2.09 0.18 16.97 16.15 65.31 1.40 5.88 5.98 0.88
V14 36.01 54.12 8.83 1.04 0.57 6.08 6.00 81.66 5.69 2.22 1.86 0.36
V15 64.93 21.69 10.61 2.77 0.70 22.38 13.64 57.98 5.31 1.84 1.51 0.33
V16 19.23 20.81 57.74 2.22 0.21 31.42 36.65 29.06 2.65 10.38 9.88 −2.48
V17 24.35 16.26 56.79 2.60 0.17 30.83 40.84 26.15 2.00 8.85 9.15 1.64
V18 38.44 25.68 32.61 3.28 0.25 26.79 16.33 54.27 2.36 6.23 6.32 0.69
V19 42.39 17.12 37.76 2.73 0.35 21.16 12.55 62.50 3.44 3.20 3.32 1.87
V20 44.94 17.63 34.36 3.07 0.46 11.33 9.40 75.05 3.76 2.66 2.66 −0.07
V21 39.61 23.91 34.49 1.98 0.51 13.19 13.30 70.44 2.55 5.23 5.32 0.86
V22 40.34 18.62 38.36 2.68 0.36 20.63 13.45 60.94 4.62 3.36 3.40 0.65
V23 39.42 22.75 35.30 2.54 0.28 20.53 14.61 58.31 6.27 3.44 3.42 −0.26
V24 43.51 21.89 31.99 2.61 0.36 22.26 15.88 58.63 2.87 7.14 7.21 0.46
V25 50.32 17.95 28.51 3.21 0.52 8.72 7.84 78.58 4.35 3.48 3.45 −0.48
V26 38.73 21.71 36.44 3.12 0.99 13.97 9.42 69.41 6.22 2.88 2.87 −0.14
V27 38.39 28.24 29.54 3.83 0.38 8.01 6.65 76.41 8.55 2.49 2.50 0.27
V28 53.09 32.55 14.21 0.15 3.93 8.32 5.18 52.94 29.63 1.20 1.21 0.18
V29 61.08 21.79 16.43 0.70 0.51 7.00 5.81 66.75 19.93 1.44 1.43 −0.06
V30 49.19 27.58 21.49 1.74 0.31 19.49 14.38 60.27 5.55 4.54 4.63 1.04
V31 46.43 14.80 36.45 2.31 0.31 27.39 20.93 44.70 6.67 6.86 6.96 0.67
V32 50.06 40.13 6.61 3.21 0.26 18.53 8.53 72.51 0.17 10.78 10.73 −0.28