SN

Description of Water Types

No

%

1

HCO₃ and Ca dominant, frequently indicates recharging waters in limestone, sandstone, and many other aquifers

3

3.19

2

This water type is dominated by Ca and HCO₃ ions. Association with dolomite is presumed if Mg is significant. However, those samples in which Na is significant, an important ion exchanged is presumed

1

1.06

3

HCO₃ and Na are dominant, normally indicates ion exchanged water, although the generation of CO₂ at depth can produce HCO₃ where Na is dominant under certain circumstances

2

2.13

4

SO₄ dominates, or anion discriminate and Ca dominant; mixed water or water exhibiting simple dissolution may be indicated

19

20.21

5

No dominant anion or cation, indicates water exhibiting simple dissolution or mixing

60

63.83

6

SO₄ dominant or anion discriminate and Na dominant; is water type that is not frequently encountered and indicates probable mixing or uncommon dissolution influences

6

6.38

7

Cl and Na dominant are frequently encountered or the water may have resulted from reverse ion exchange of Na-Cl

3

3.19