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. 2016 Jul 11;17:4. doi: 10.1186/s12932-016-0036-6

Table 3.

Water sample compositions

Well Date T (°C) Eh (mV) pH SpC (mS/cm) Al As B Ba Ca Fe K Li Mg Mn Mo Na P S
GW-10 5/14/2012 31.9 181 6.6 5.56 0.013 0.176 0.75 0.56 80.6 1.76 41.4 0.01 78.4 0.079 0.011 1144 4.0 1.5
GW-10 10/15/2012 29.6 135 7.4 5.65 0.199 0.79 0.45 86.1 0.56 28.2 0.012 78.9 0.075 0.007 1099 3.2 0.5
GW-11 5/14/2012 28.8 165 6.9 4.59 0.004 0.062 0.76 0.11 51.9 0.66 37.1 0.007 67.1 0.064 0.003 657 5.8 1.1
GW-11 5/4/2013 28.9 99 6.9 4.18 0.027 0.97 0.10 52.4 1.00 22.8 0.168 65.3 0.061 0.007 594 5.4 15.5
GW-12 5/15/2012 33.9 179 6.6 4.95 0.022 0.196 0.52 0.57 117.0 1.02 35.2 0.01 88.6 0.070 0.003 724 1.7 1.8
GW-12 10/15/2012 28.9 122 7.3 4.95 0.028 0.167 0.60 0.55 127.4 0.82 24.9 0.012 93.5 0.071 910 1.7 0.5
GW-12 5/4/2013 27.5 −98 6.8 4.61 0.148 0.82 0.45 128.9 0.11 23.6 0.406 95.1 0.080 0.017 687 1.1 33.2
GW-12 10/24/2013 27.9 −49 6.6 5.23 0.032 0.178 0.54 0.71 110.9 3.33 24.6 0.01 89.5 0.071 682.1 2.5 5.16
GW-13 5/16/2012 31.1 135 6.5 15.23 0.049 0.020 0.56 2.56 388.2 0.75 107.3 0.016 412.8 0.299 0.002 4261 0.2 5.0
GW-14 5/17/2012 29.2 103 6.5 3.30 0.017 0.062 0.44 0.09 106.5 0.12 20.0 0.010 70.5 0.149 392 1.5 1.7
GW-15 5/17/2012 30.0 141 6.6 5.53 0.031 0.013 0.33 0.77 163.1 6.98 49.8 0.012 152.8 0.289 0.002 1251 1.5 2.4
GW-15 10/16/2012 28.2 102 7.4 5.62 0.048 0.42 0.84 184.1 6.15 37.6 0.010 158.7 0.302 0.002 856 1.3 0.5
GW-16 5/18/2012 33.4 95 6.7 6.91 0.022 0.084 0.54 0.53 138.9 0.17 15.8 0.012 46.1 0.059 0.004 1388 1.0 13.0
GW-17 5/18/2012 30.5 124 6.5 8.77 0.043 0.016 0.35 0.35 311.6 0.17 59.8 0.016 222 0.916 0.003 2134 0.1 124.9
GW-17 10/16/2012 28.4 117 7.3 8.68 0.119 0.051 0.42 0.39 326.1 12.2 41.8 0.013 212.8 0.944 0.004 1346 0.8 122.0
GW-17 5/7/2013 28.2 −85 6.6 7.80 0.040 0.7 0.34 322.1 6.12 35.9 0.534 208.3 0.907 0.022 1518 0.9 145.5
GW-17 10/25/2013 27.4 −36 6.5 8.50 0.06 0.038 0.36 0.36 265.5 14.51 41.8 0.024 198.7 0.896 1609 1.4 92.81
GW-19 5/19/2012 28.4 141 6.6 8.01 0.022 0.021 0.87 0.15 124.2 0.24 16.3 0.011 89.2 0.167 1702 6.8 3.1
GW-19 10/16/2012 28.5 130 7.3 7.99 0.030 0.031 0.84 0.27 140.7 3.87 11.4 0.013 102.4 0.235 0.002 1565 7.3 8.9
GW-19 5/6/2013 27.5 −34 6.7 7.68 0.002 1.23 0.2 136.4 0.87 8.9 0.045 94.4 0.185 0.005 1489 6.1 27.8
GW-19 10/23/2013 27.0 −37 6.5 8.22 0.042 0.004 0.85 0.24 124.9 4.47 12.2 0.013 101.9 0.23 1526 8.9 13.33
GW-20 5/19/2012 30.1 117 6.7 7.90 0.024 0.013 0.64 0.14 150.3 0.65 20.7 0.011 78.6 0.102 0.002 1753 8.7 2.6
GW-20 5/6/2013 26.9 −73 6.8 7.56 0.004 0.93 0.13 161.2 0.19 12.6 0.386 82.8 0.114 0.015 1409 6.2 35.5
GW-20 0 10/23/2013 28.1 12 7.3 29.40 0.056 0.009 2.26 0.74 192.1 0.21 38.1 0.018 382.4 0.177 7149 0.5 12.32
GW-21 5/19/2012 30.2 129 6.5 7.30 0.032 0.026 0.46 0.13 202.9 0.55 34.3 0.013 117.3 0.565 0.003 1693 3.3 65.2
GW-22 5/19/2012 29.7 183 6.6 5.57 0.021 0.080 0.61 0.76 108.7 1.11 54.6 0.010 119.8 0.084 1057 1.9 1.7
GW-23 5/19/2012 28.7 161 6.7 5.14 0.014 0.067 0.66 0.49 93 0.25 54.3 0.010 108.4 0.078 861 1.9 1.6
GW-24 5/19/2012 28.0 147 6.7 6.87 0.028 0.094 0.63 0.86 146.7 0.91 61.6 0.011 151.2 0.079 0.002 1318 1.5 2.1
GW-25 5/19/2012 28.2 164 6.7 5.26 0.011 0.053 0.69 0.3 90.1 0.35 55.8 0.009 107.9 0.059 886 2.2 1.5
GW-26 5/20/2012 32.5 324 6.9 8.89 0.034 0.030 0.57 0.58 189.7 1.35 33.9 0.013 149.4 0.16 0.002 2138 0.1 3.3
GW-27 5/20/2012 29.6 114 6.4 11.55 0.039 0.032 0.55 1.13 283.4 2.93 43.9 0.014 213.3 0.266 0.003 3009 0.6 4.3
GW-27 10/17/2012 27.9 88 7.2 11.45 0.095 0.062 0.6 1.45 291 17.48 27.5 0.011 204.9 0.274 2039 2.4 1.1
GW-28 5/20/2012 31.9 125 6.4 8.79 0.037 0.024 0.55 0.57 216 0.89 55.2 0.012 202.8 0.712 2237 0.2 3.0
GW-28 10/17/2012 28.3 88 7.3 9.23 0.094 0.017 0.62 0.78 232.2 13.33 38.2 0.009 203.1 0.621 0.003 1586 2.3 2.4
GW-29 5/21/2012 31.5 132 6.8 6.31 0.014 0.57 0.16 89.5 0.71 53.4 0.009 111.7 0.068 0.001 1342 1.2 1.2
GW-29 10/19/2012 27.3 94 7.7 6.54 0.027 0.032 0.65 0.2 103.5 2.08 39.2 0.012 123.6 0.074 0.004 1269 1.5 0.2
GW-29 5/5/2013 26.6 −84 7.1 6.21 0.001 0.95 0.2 102.6 1.81 33.4 0.476 121.8 0.073 0.018 1190 1.6 39.7
GW-30 5/21/2012 30.8 246 7.0 4.35 0.020 0.63 0.06 38.9 0.46 36.6 0.01 50.3 0.036 0.002 693 3.0 0.7
GW-30 10/19/2012 27.3 90 7.9 4.56 0.72 0.06 44.5 0.39 26.4 0.01 54.4 0.039 0.003 1002 2.9 0.4
GW-30 5/5/2013 26.6 −42 7.4 4.30 0.001 0.95 0.1 47.4 1.01 25.2 0.534 56.7 0.041 0.02 666 3.0 42.2
GW-31 5/21/2012 28.6 134 6.9 3.93 0.021 0.47 0.06 43.6 1.09 39 0.005 56.1 0.076 0.004 642 2.3 0.7
GW-31 10/19/2012 27.6 81 7.8 4.05 0.023 0.58 0.07 52.8 1.01 29.3 0.010 65.1 0.092 839 2.2 0.2
GW-31 5/5/2013 26.6 −61 7.3 3.91 0.002 0.78 0.07 54.7 1.03 27 0.368 67.3 0.097 0.018 646 2.1 32.5
GW-32 5/21/2012 28.2 143 6.5 11.74 0.040 0.115 0.62 1.44 242.5 4.8 60.2 0.016 232.5 0.678 0.004 3085 1.2 6.5
GW-32 5/6/2013 27.7 −73 6.7 14.95 0.203 0.79 2.62 392.1 3.87 42.5 0.406 344.2 0.083 0.017 3387 1.6 32.8
GW-33 5/22/2012 28.2 143 6.4 10.74 0.051 0.027 0.58 0.4 337.1 2.67 97.4 0.012 416 0.891 2835 0.6 4.3
GW-33 5/8/2013 28.1 −68 6.5 10.14 0.004 0.8 0.25 340.3 0.07 62.3 0.537 372 1.01 0.027 2136 0.8 43.3
GW-33 10/22/2013 27.5 8 6.4 11.3 0.055 0.038 0.63 0.4 324.6 10.82 72 0.028 392.4 1.218 2274 2.2 14.38
GW-34 5/22/2012 29.1 153 6.6 5.53 0.015 0.154 0.52 0.54 107.8 0.23 32.6 0.011 85.5 0.085 1005 1.9 1.5
GW-34 10/19/2012 27.7 92 7.4 5.57 0.019 0.104 0.59 0.73 113.1 3.32 21.9 0.012 86.7 0.09 0.004 1050 3.0 0.4
GW-34 5/8/2013 28.0 −77 6.7 5.24 0.107 0.89 0.62 120 2.14 21.1 0.032 92.5 0.095 0.003 925 4.1 11.5
GW-35 5/22/2012 29.3 128 6.6 7.67 0.032 0.254 0.49 0.94 176.7 0.63 36.4 0.011 136.4 0.077 1709 0.7 2.4
GW-35 10/19/2012 27.9 88 7.4 7.39 0.042 0.226 0.56 1.16 177.8 3.54 24.1 0.013 130.1 0.082 1392 1.7 0.4
GW-35 5/8/2013 29.2 −104 6.8 6.85 0.217 0.8 1 194.6 2.23 23.3 0.052 140.7 0.089 0.004 1327 2.6 34.6
GW-36 5/22/2012 29.3 149 6.7 5.67 0.022 0.114 0.49 0.56 107.2 0.72 32.3 0.011 87.5 0.065 0.002 1040 2.3 1.6
GW-36 10/19/2012 28.5 94 7.5 5.66 0.024 0.116 0.56 0.61 114.5 1.36 22.1 0.012 90.1 0.068 1110 2.3 0.4
GW-36 5/8/2013 29.5 −83 6.9 5.18 0.077 0.74 0.56 123.5 1.6 22.6 0.45 97.5 0.08 0.017 832 2.9 39
GW-37 5/22/2012 31.6 170 6.5 4.80 0.023 0.158 0.29 0.37 125.9 0.17 34.5 0.012 97.9 0.084 0.002 855 1.3 2.0
GW-37 5/5/2013 26.9 −64 6.8 4.59 0.135 0.56 0.42 145.7 2.16 25.1 0.087 110.8 0.092 0.002 748 2.8 12.1
GW-38 5/22/2012 28.1 128 6.8 5.70 0.007 0.078 0.61 0.1 65.6 0.61 40.5 0.009 77.9 0.044 1200 2.4 1.3
GW-38 5/5/2013 25.8 −58 7.1 5.54 0.057 0.87 0.14 78.1 0.83 32.2 0.211 94 0.047 0.005 989 3.0 17.1
GW-38 10/27/2013 26.3 −78 6.9 6.13 0.022 0.093 0.72 0.13 59.76 2.93 29.9 0.004 83.4 0.051 1025 3.8 3.115
GW-39 5/22/2012 28.7 118 6.6 6.75 0.034 0.104 0.3 0.62 195.2 0.44 38 0.013 131.6 0.132 1490 0.6 2.7
GW-39 10/18/2012 28.6 99 7.5 6.74 0.056 0.092 0.37 0.68 215.4 1.47 25.5 0.013 136.6 0.138 1126 0.9 0.3
GW-39 5/5/2013 25.4 −99 6.9 6.65 0.113 0.68 0.69 253.5 2.43 29.5 0.061 161.8 0.152 0.004 1279 2.7 40.9
GW-39 10/27/2013 27.2 −81 6.7 7.24 0.049 0.131 0.37 0.79 189.9 5.74 26.1 0.023 136.3 0.143 1300 2.4 8.754
GW-40 5/23/2012 29.7 149 6.6 7.04 0.041 0.048 0.39 0.72 248.5 0.91 46.2 0.012 160 0.238 0.002 1689 0.6 5.5
GW-40 10/18/2012 29.1 107 7.3 6.83 0.082 0.048 0.45 0.96 271.9 4.04 33 0.017 162.5 0.245 1036 1.5 0.3
GW-40 5/5/2013 26.1 −61 6.7 6.54 0.057 0.69 0.93 323.1 3.53 36.5 0.53 191.1 0.267 0.015 1335 2.4 42.4
GW-41 5/23/2012 29.3 134 6.6 7.94 0.046 0.030 0.25 1.4 352.7 1.39 43 0.014 186.7 0.266 1961 0.6 14
GW-41 10/18/2012 29.2 110 7.4 7.94 0.129 0.064 0.34 1.38 364.4 7.37 29.6 0.016 181 0.278 0.005 1145 1.5 7.9
GW-41 5/5/2013 26.3 −82 6.7 7.72 0.019 0.61 1.3 436.5 2.94 34.7 0.54 220.2 0.29 0.013 1582 2.3 46
GW-42 5/23/2012 29.3 134 6.6 7.94 0.048 0.043 0.26 1.43 352.4 2.2 43.7 0.013 186.9 0.269 1910 0.7 14.0
GW-50 10/17/2012 29.1 111 7.8 3.57 0.014 0.6 0.11 45.7 0.06 26.1 0.006 52 0.035 0.002 739 1.5 0.4
GW-50 5/7/2013 28.9 22 7.2 3.12 0.008 0.96 0.06 38.5 0.25 33.2 0.062 51.4 0.037 0.009 460 2.5 40.8
GW-51 10/17/2012 28.3 99 7.7 4.00 0.031 0.78 0.07 47.2 0.65 24.1 0.01 50.5 0.046 0.002 902 3.7 0.5
GW-51 5/7/2013 29.8 33 7.1 3.68 0.005 1.04 0.06 43.9 0.49 31.6 0.776 55.5 0.044 0.02 488 3.3 46.5
GW-52 10/18/2012 27.6 121 7.4 5.81 0.052 0.206 0.37 0.60 183.7 2.66 29.3 0.015 132.9 0.084 0.006 967 1.2 0.4
GW-53 10/17/2012 27.8 122 7.2 9.01 0.108 0.028 0.46 0.56 280.2 6.95 26.0 0.017 237.6 0.303 1435 0.9 0.7
GW-53 5/5/2013 25.4 −39 6.6 9.33 0.040 0.87 0.83 360.3 2.12 49.2 0.59 309.8 0.269 0.013 1916 1.4 48.6
GW-60 5/7/2013 28.9 77 7.1 4.86 0.55 0.51 192.8 0.34 36.7 7.245 147.1 0.484 0.008 940 0.9 138.2
Blank 1 10/19/2012 0.002 0.002 0.2 0.0 0.1 1 0.1
Blank 2 10/18/2012 0.002 0.007 0.004 0.3
Blank 3 5/13/2012 0.01 0.002 0.1 0.1 0.1 1 0.7
Blank 4 5/13/2012 0.09 0.05 0.008 1.8 0.014 0.4 0.8 0.0064 14 0.01
Minimum 25.4 −104 6.4 3.1 0.004 0.001 0.25 0.057 38.5 0.058 8.9 0.004 46.1 0.035 0.001 392 0.1 0.2
Maximum 33.9 324 7.9 29.4 0.129 0.254 2.3 2.6 436.5 17.5 107.3 7.25 416.0 1.218 0.027 7149 8.9 146
Average 8.6 69 6.9 7.1 0.04 0.071 0.64 0.57 174.9 2.5 35.9 0.188 143.4 0.231 0.007 1427 2.3 19.3
Standard Deviation 1.7 97 0.4 3.5 0.028 0.065 0.27 0.5 104.4 3.4 16.6 0.815 88.6 0.271 0.007 940 1.8 31.8
Geometric Mean 28.6 6.9 6.6 0.033 0.04 0.6 0.38 143.6 1.2 32.7 0.028 122.6 0.141 0.005 1242 1.7 4.9
Method Detection Limit 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.003 0.002 0.002 0.002 0.001 0.002 0.001
WHO Guideline [17] 1.5 0.01 0.5 0.7 200 0.3 30 150 0.5 200 83
Seawater 8.1 0.001 0.002 4.5 0.01 413 6E-05 399 0.170 1290 0.0003 0.011 10,800 0.07 900
Well Date Si Sr F Cl Br N03 HCO3 DIC DOC Saturated mineralsa CIB (%) X SW (%)
GW-10 5/14/2012 23.8 0.7 4.5 1528 8
GW-10 10/15/2012 21.8 0.7 1521 4.9 0.2 841 189 47.0 Hm, Ap, Gth, Dol, Cal, Qz 0 8
GW-11 5/14/2012 26.6 0.5 4.8 898 5
GW-11 5/4/2013 11.1 0.8 0.4 859 8.0 1165 296 34.3 Hm, Ap, Gth, Dol, Cal, Qz −18 4
GW-12 5/15/2012 23.2 1.0 5.1 1036 1.2 5
GW-12 10/15/2012 22.7 1.0 1145 4.2 0.2 1028 237 49.4 Ap, Dol, Qz, Cal 2 6
GW-12 5/4/2013 9.2 1.7 0.4 1047 8.7 1051 284 30.8 Hm, Ap, Gth, Dol, Cal, Qz −11 5
GW-12 10/24/2013 23.2 0.9 1049 0.8 0.2 1193 364 45.0 Ap, Hm, Mt, Gth, Qz, Dol −16 5
GW-13 5/16/2012 15.3 3.0 12.6 5966 11.1 31
GW-14 5/17/2012 31.7 0.6 3.9 532 3
GW-15 5/17/2012 20.8 1.2 5.0 1741
GW-15 10/16/2012 19.7 1.3 1321 5.4 0.2 540 125 17.5 Hm, Ap, Gth, Dol, Cal, Qz 12 7
GW-16 5/18/2012 23.5 0.5 6.1 2085 5.1 11
GW-17 5/18/2012 16.0 1.5 7.3 3058 6.4 16
GW-17 10/16/2012 14.3 1.5 2003 9.0 0.2 457 110 13.9 Hm, Ap, Gth, Dol, Cal, Qz 12 10
GW-17 5/7/2013 2.2 2.3 0.5 2486 11.8 398 124 10.9 Hm, Dol, Gth, Cal 6 13
GW-17 10/25/2013 17.2 1.4 2399 1.0 0.1 423 143 14.9 Ap, Hm, Mt, Gth, Qz 8 12
GW-19 5/19/2012 32.3 0.5 6.2 2567 5.3 13
GW-19 10/16/2012 30.2 0.6 2186 8.1 0.2 598 140 32.9 Hm, Ap, Gth, Dol, Qz, Cal 6 11
GW-19 5/6/2013 17.5 0.6 2364 11.4 1.6 583 168 25.8 Ap, Hm, Dol, Gth, Qz, Cal −2 12
GW-19 10/23/2013 31.8 0.6 2326 1.0 0.4 525 175 32.6 Ap, Hm, Mt, Qz, Gth 0 12
GW-20 5/19/2012 31.5 0.7 7.0 2592 5.6 13
GW-20 5/6/2013 18.0 1.3 2269 11.1 675 184 28.1 Ap, Dol, Hm, Qz, Cal −3 12
GW-20 0 10/23/2013 10.0 4.7 10363 3.6 472 126 34.2 Hm, Mt, Gth, Dol, Qz 8 53
GW-21 5/19/2012 28.2 0.9 6.0 2427 5.4 12
GW-22 5/19/2012 27.0 1.0 5.0 1436 7
GW-23 5/19/2012 29.4 0.9 5.7 1150 6
GW-24 5/19/2012 26.1 1.3 5.9 1919 10
GW-25 5/19/2012 28.0 0.9 5.1 1186 3.1 6
GW-26 5/20/2012 21.9 1.1 7.3 3008 15
GW-27 5/20/2012 22.0 1.5 9.4 4224 9.5 22
GW-27 10/17/2012 20.0 1.4 2722 12.2 0.2 828 204 41.2 Hm, Ap, Gth, Dol, Cal, Qz 12 14
GW-28 5/20/2012 22.5 1.5 7.4 3184 5.4 16
GW-28 10/17/2012 20.4 1.5 2366 9.6 0.2 715 171 29.0 Hm, Ap, Gth, Dol, Cal, Qz 9 12
GW-29 5/21/2012 24.9 0.8 6.5 1920 10
GW-29 10/19/2012 24.2 0.9 1956 5.7 0.2 681 151 21.3 Hm, Ap, Gth, Dol, Cal, Qz 3 10
GW-29 5/5/2013 9.8 1.7 1836 9.8 766 186 15.6 Ap, Hm, Dol, Gth, Qz, Cal −2 9
GW-30 5/21/2012 25.0 0.4 4.4 987 5
GW-30 10/19/2012 25.0 0.4 1503 3.5 0.2 869 186 32.2 Hm, Ap, Gth, Dol, Cal, Qz −6 8
GW-30 5/5/2013 11.2 1.3 1009 8.1 1.6 1014 225 24.8 Ap, Hm, Gth, Dol, Qz, Cal −15 5
GW-31 5/21/2012 25.3 0.4 4.3 899 1.2 5
GW-31 10/19/2012 25.9 0.4 1078 3.1 0.2 778 168 25.7 Hm, Ap, Gth, Dol, Qz, Cal 1 6
GW-31 5/5/2013 12.7 1.1 0.4 937 7.9 872 197 16.8 Ap, Hm, Gth, Dol, Qz, Cal −10 5
GW-32 5/21/2012 20.9 2.0 10.2 4344 8.8 22
GW-32 5/6/2013 1.7 3.7 5311 20.0 556 169 16.4 8 27
GW-33 5/22/2012 33.1 2.8 9.9 4034 8.8 21
GW-33 5/8/2013 17.6 3.2 3431 13.5 590 202 16.2 Dol, Qz, Cal 10 18
GW-33 10/22/2013 32.6 0.3 3447 1.3 0.1 236 25.4 Ap, Hm, Mt, Gth, Qz 12 18
GW-34 5/22/2012 25.1 0.8 5.9 1423 2.8 7
GW-34 10/19/2012 23.3 0.8 1553 4.7 0.2 928 210 40.7 Hm, Ap, Gth, Dol, Qz, Cal −2 8
GW-34 5/8/2013 11.5 0.8 1348 9.0 874 250 23.2 Ap. Hm, Dol, Gth, Qz, Cal −5 7
GW-35 5/22/2012 20.0 1.3 7.9 2419 6.5 12
GW-35 10/19/2012 19.4 1.3 2119 6.9 0.2 891 206 31.4 Hm, Ap, Gth, Dol, Cal, Qz 2 11
GW-35 5/8/2013 8.0 1.4 2020 10.6 899 245 18.4 Hm, Dol, Gth, Cal, Qz 0 10
GW-36 5/22/2012 21.5 0.8 5.7 1403 0.8 7
GW-36 10/19/2012 19.6 0.8 1435 4.9 0.2 1009 226 44.9 Hm, Ap, Gth, Dol, Cal, Qz 2 7
GW-36 5/8/2013 7.7 1.4 1319 8.9 1055 271 28.3 Ap, Hm, Dol, Gth, Cal, Qz −10 7
GW-37 5/22/2012 30.5 1.0 5.1 1202 1.1 6
GW-37 5/5/2013 16.7 1.3 1165 9.1 782 212 27.4 Ap, Hm, Dol, Gth, Qz, Cal −2 6
GW-38 5/22/2012 29.0 0.7 6.0 1617 2.5 8
GW-38 5/5/2013 16.8 1.1 1492 9.5 826 198 24.0 Ap, Hm, Dol, Gth, Qz, Cal −4 8
GW-38 10/27/2013 29.5 0.7 1480 0.8 0.1 939 242 35.6 Ap, Hm, Mt, Gth, Qz, Dol −6 8
GW-39 5/22/2012 21.7 1.4 6.2 2116 3.7 11
GW-39 10/18/2012 20.2 1.5 1709 5.8 0.2 673 154 22.8 Hm, Ap, Gth, Dol, Cal, Qz 8 9
GW-39 5/5/2013 9.4 1.7 1938 9.8 679 180 15.7 Hm, Dol, Gth, Qz, Cal 7 10
GW-39 10/27/2013 21.3 1.5 1936 0.9 0.1 746 217 26.4 Ap, Hm, Mt, Gth, Qz, Dol 3 10
GW-40 5/23/2012 31.4 1.8 6.3 2249 4.5 12
GW-40 10/18/2012 30.2 1.9 1509 6.0 0.2 645 153 22.0 Hm, Ap, Gth, Dol, Cal, Qz 14 8
GW-40 5/5/2013 18.6 2.8 1980 9.9 1.5 585 172 15.2 Hm, Dol, Gth, Qz, Cal 11 10
GW-41 5/23/2012 28.7 2.1 7.5 2757 4.9 14
GW-41 10/18/2012 27.5 2.1 1506 7.3 0.2 659 157 22.4 Hm, Ap, Gth, Dol, Cal, Qz 20 8
GW-41 5/5/2013 15.9 3.1 2410 10.9 578 172 15.0 Hm, Dol, Qz, Gth, Cal 12 12
GW-42 5/23/2012 29.0 2.2 6.6 2728 14
GW-50 10/17/2012 24.3 0.4 1106 3.0 0.2 774 166 35.4 Ap, Hm, Gth, Dol, Qz, Cal −7 6
GW-50 5/7/2013 15.2 0.5 686 7.5 881 201 23.1 Ap, Hm, Gth, Dol, Qz, Cal −18 4
GW-51 10/17/2012 31.8 0.4 1339 2.9 0.2 1003 217 43.3 Hm, Ap, Gth, Dol, Qz, Cal −9 7
GW-51 5/7/2013 20.6 1.2 746 7.6 1116 262 25.8 Ap, Hm, Gth, Dol, Qz, Cal −23 4
GW-52 10/18/2012 27.6 1.4 1281 5.8 0.2 826 190 41.3 Hm, Ap, Gth, Dol, Cal, Qz 9 7
GW-53 10/17/2012 27.3 1.4 2101 8.5 0.2 739 182 29.2 Hm, Ap, Gth, Dol, Qz, Cal 13 11
GW-53 5/5/2013 17.5 2.7 0.4 3017 12.4 641 203 21.1 Hm, Dol, Qz, Gth, Cal 10 15
GW-60 5/7/2013 1.1 0.4 1425 9.3 393 95 10.9 Hm, Gth, Dol, Cal 6 7
Blank 1 10/19/2012 1 0.17 0.5 2.1
Blank 2 10/18/2012 0.4 23.8 4.9
Blank 3 5/13/2012 0.32 1 0.21 4.9
Blank 4 5/13/2012 1.6 0.01 1.97 10 0.07 4.5
Minimum 1.7 0.3 0.4 532 0.8 0.1 393 95 10.9
Maximum 33.1 4.7 12.6 10363 20 1.6 1193 364 49.4
Average 21.6 1.3 5.5 2076 6.6 0.3 766 195 27 1.2  11
Standard deviation 7.3 0.8 2.8 1368 3.8 0.4 206 50 10.1 10  7
geometric mean 19.7 1.1 4.0 1803 5.2 0.2 737 188 25.2
Method detection limit 0.003 0.004 0.007 0.001 0.001 0.001 0.007 0.018
WHO guideline [17] 250 50 384 0.007 0.018
Seawater 2.8 7.6 1.3 19500 67.0 142 0.1

All concentrations in mg/L

HCO3− and saturation indices calculated using GWB v. 9. XSW (%) is the estimated percentage of seawater in the groundwater mixture (see text)

SpC specific conductivity, seawater composition from [32] except for HCO3− and DOC concentrations from [33]

Hm hematite; Ap apatite; Gth goethite; Dol dolomite; Cal calcite; Qz quartz; Mag magnetite; DIC dissolved inorganic carbon; DOC dissolved organic carbon

aCIB (%) = charge imbalance error. Saturated minerals have saturation index (= log IAP/Ksp) >0