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Table 6 Hypothetical salt combination groups of the obtained groundwater samples

From: GIS-based assessment of groundwater quality and suitability for drinking and irrigation purposes in the outlet and central parts of Wadi El-Assiuti, Assiut Governorate, Egypt

Group Salt assemblages Sample No.
1 NaCl > CaHCO3 > MgHCO3 12, 14, 9, 28, 33, 34, 38, 41, 42, 43, 44, 45, 47, 48, 49, 50, 5, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 63, 64, 65, 66, 67, 69, 70, 71, 72, 73, 77, 78, 79, 80, 82, 84, 87, 88, 89, 90, 91, 92, 100, 102, 104 105, 106, 107, 108, 109, 110, 111, 113, 123, 127, 128, 129, 132 135, 136, 139, 146, 147, 153
2 NaCl > CaHCO3 > Na2SO4 2, 3, 32, 36, 39, 42, 43, 50, 53, 54, 55, 56, 57, 58, 61, 64, 65, 66, 67, 69, 71, 72, 73, 77, 78, 79, 88, 89, 92, 94, 96, 97, 102, 104, 105, 106, 107, 108, 110, 111, 13, 115, 116, 117, 118, 119, 120, 121, 122, 127, 128, 129, 135
3 NaCl > Na2SO4 > MgHCO3 6, 12, 14, 19, 28, 33, 34, 37, 38, 41, 43, 45, 47, 48, 49, 51, 52, 54, 58, 60, 61, 63, 70, 71, 72, 73, 77, 80, 84, 86, 88, 90, 95, 96, 98, 99, 05, 109, 110, 114, 123, 132, 136, 139, 146, 147, 153
4 NaCl > MgHCO3 > KCl 3, 6, 12, 15, 16, 19, 23, 27, 37, 44, 53, 54, 60, 61, 63, 65, 67, 71, 72, 73, 79, 82, 84, 86, 87, 88, 92, 93, 96, 97, 98, 99, 105, 110, 111, 121, 123, 132, 139, 146, 147, 153, 159
5 NaCl > Na2SO4 > NaHCO3 3, 6, 8, 9, 2, 4, 15, 16, 19, 22, 32, 33, 34, 37, 38, 7, 43, 48, 49, 51, 54, 58, 60, 63, 65, 67, 70, 77, 79, 80, 88, 90, 85, 99, 109, 114, 116, 123, 136, 139, 147, 153, 159
6 NaCl > MgSO4 > CaSO4 2, 3, 6, 12, 14, 16, 9, 22, 25, 27, 36, 44, 45, 53, 54, 58, 60, 63, 65, 67, 69, 70, 77, 80, 81, 82, 87, 88, 89, 90, 91, 93, 97, 107, 111, 114, 117, 123
7 NaCl > MgCl > KCl 2, 27, 28, 36, 39, 42, 50, 53, 55, 56, 57, 59, 64, 66, 69, 78, 82, 97, 100, 102, 104, 106, 107, 108, 111, 115, 118, 119, 120, 121, 22, 27, 129, 135
8 NaCl > MgSO4 > CaHCO3 3, 6, 12, 19, 38, 42, 45, 48, 51, 52, 56, 58, 65, 66, 70, 80, 89, 90, 91, 93, 94, 95, 97, 100, 104, 106, 107, 108, 113, 114, 115, 116, 128, 135
9 NaCl > CaSO4 > MgSO4 28, 38, 42, 48, 51, 52, 55, 56, 57, 59, 64, 66, 78, 94, 95, 100, 102, 104, 106, 108, 115, 116, 118, 119, 120, 122, 127, 28, 29, 136
10 NaCl > MgHCO3 > NaHCO3 3, 6, 12, 16, 29, 37, 44, 53, 54, 60, 63, 65, 67, 69, 82, 87, 88, 93, 97, 99, 111, 117, 121, 123, 139, 147, 153, 159–
11 NaCl > CaHCO3 > MgSO4 2, 3, 14, 22, 43, 53, 54, 60, 63, 67, 69, 77, 8, 82, 87, 111, 117, 120, 121, 122, 123, 136, 159
12 NaCl > MgCl > MgSO4 27, 28, 42, 50, 53, 55, 57, 59, 64, 66, 69, 78, 89, 97, 100, 104, 106, 119, 122, 129, 135
13 MgHCO3 > NaCl > KCl 1, 2, 5, 7, 8, 9, 11, 17, 18, 22, 25, 26, 30, 31, 32, 35, 36, 40, 81
14 CaHCO3 > NaCl > MgSO4 5, 7, 8, 9, 11, 16, 17, 18, 22, 25, 26, 27, 30, 31, 40, 81
15 MgHCO3 > NaCl > Na2SO4 2, 5, 7, 8, 9, 11, 22, 29, 31, 32, 35, 36, 40
16 MgHCO3 > NaCl > NaHCO3 1, 2, 5, 8, 18, 29, 30, 32, 35, 36, 40, 81
17 CaHCO3 > NaCl > Na2SO4 5, 7, 8, 9, 11, 16, 22, 30, 31, 37, 40
18 MgHCO3 > Na2SO4 > NaCl 3, 8, 9, 16, 18, 22, 32, 65, 67, 81, 93
19 NaCl > NaHCO3 > Na2SO4 5, 29, 30, 35, 40, 71, 73, 105, 132, 146
20 NaHCO3 > NaCl > MgHCO3 23, 61, 72, 79, 84, 92, 96, 98, 110
21 MgHCO3 > CaHCO3 > NaCl 1, 8, 13, 17, 17, 25, 31, 81
22 CaHCO3 > MgHCO3 > NaCl 7, 9, 11, 22, 26, 30, 40
23 MgSO4 > NaCl > Na2SO4 33, 34, 37, 39, 41, 47, 49
24 NaCl > MgHCO3 > CaHCO3 3, 5, 6, 5, 23, 99
25 NaCl > NaHCO3 > MgHCO3 15, 71, 73, 105, 32, 146
26 MgSO4 > NaCl > CaHCO3 33, 34, 39, 41, 47
27 MgHCO3 > NaCl > CaHCO3 2, 29, 32, 35
28 Na2SO4 > NaCl > MgHCO3 23, 44, 87, 91
29 CaHCO3 > Na2SO4 > NaCl 18, 25, 26, 81
30 CaHCO3 > NaCl > MgHCO3 16, 27, 37
31 Na2SO4 > MgHCO3 > CaHCO3 4, 6, 99
32 MgHCO3 > NaHCO3 > NaCl 7, 31
33 Na2SO4 > MgHCO3 > NaCl 26