Hydrochemistry and Water Quality Index of Groundwater in Abu-Jir Village in Al-Anbar, Western Iraq

Abstract

A water quality index was used to estimate the quality of the groundwater in the Abu Jir village in Al-Anbar, all groundwater samples are taken in October 2021, fifteen groundwater samples are collected for the study area. coordination of these samples was geographically determined by GPS between latitudes 33ᵒ 5′ 30″ - 33ᵒ 28′ 15″ and longitudes 42ᵒ 38′ 0″ - 42ᵒ 59′ 15″to conduct electrical conductivity, pH and temperature at the site in addition to groundwater quality and validity to different purposes, the results show that the pH value ranges between 7.2 to 7.9 with an average of 7.5 , Temperature values are between 22.4 to 28.5 ᵒC with an average of 26.1ᵒC while electrical conductivity value between 2260-7250 μS/cm with an average of 3346.3 , the range of the Total Dissolved Solids value is between 1410- 4710 ppm, and TH values range between 653.4 to 1663.6 with an average of 924.22 ppm, The accuracy of the analyses for groundwater sampling in the study area is very highly, error percentage is less than 5%, The dominated cation is Na+, while the predominant anion is SO42-, according to the results of major element analysis (cations and anions), Na2SO4, occurrence ratio is 80%, the classification of groundwater samples depends on the Total Dissolved Solids, the class of water in the studied area is brackish water. The results showed values of Water ranges between 61.08 – 367.3 the most wells have good water, except well- 1 and Well- 14, which is not suitable. All groundwater samples in the study area are suitable for agriculture purposes. When using piper diagram for groundwater sample All of groundwater samples were classified as denotes earth alkaline water with a high alkaline content, sulfate and chloride content.