understand the thermodynamic of ionic composition for different saline water, triplicate water samples were collected from each location. This study required chemical analysis for total cations (Ca+2,Mg+2,Na+1,K+1) and anions (Cl-1, HCO3-1,CO3-2,SO4-2). The following parameters were calculated using the[1] program: ionic strength, activity coefficient, activity, and ion pairs. The findings revealed that, according to the classification of medium salinity[2], There is no issue with the rate of infiltration. The calcium ionic activity coefficient values ranged from 0.332 to 0.587, with active Ca+2 accounting for 23 to 48 percent of total soluble Ca+2 in the samples investigated. The concentrations of ion pairs ranged from 0.749 to 2.716 mM. L-1. The magnesium ionic activity coefficient ranged from 0.385 to 0.609, and active Mg+2 was found to be between 29 and 44 percent of total soluble Mg+2. The concentrations of ion pairs ranged from 0.270 to 6.618 mM.L-1. In general, the findings show that: The following is the ion Paris sequence: (MgSO4) 0, (CaSO4) 0, (NaSO4) -, (MgHCO3) +, (CaHO3) +, (KSO4)-. The free ions were arranged in the following order: Na+, SO4 -2, Mg+2, Ca+2, HCO3-1, K+1.- Changes in the mathematical relationship between ionic strength and electric conductivity were generated by the correction of ion pairs and ionic activity.- Correction of ion pairs and ionic activity increased the adjusted sodium adsorption ratio (adj.RNa). Ion pairs, activity, and saline water are some of the terms used in this paper.