Assessment of Groundwater Quality in Rutba Area, Al-Anbar, Western Iraq

  • Tariq Abed Hussain Civil Engineering Department, University of Technology, Baghdad, Iraq
  • Qusai Y. Al-Kubaisi Department of Geology, College of Science, University of Baghdad, Baghdad, Iraq
  • sufian K. Al-Sumaidai North Oil Company, Ministry of Oil, Iraq
Keywords: Groundwater quality, Multivariate statistical, Piper diagram, Rutba.


The groundwater samples are considered to be fresh to slightly water based on the TDS value. Groundwater within the study region is dominated by calcium ions and sulphate ion refers to carbonate rock from the Mulussa Formation. The type of water sample in the study area is classified in class e and class c according to the Piper diagram, the types of groundwater samples of the study area are earth alkaline water with dominant sulphate and chlorine and normal earth alkaline water with dominant sulphate or chlorine except well no 3 which has been classified as Alkaline water with dominant sulphate and chlorine. Correlation coefficient analyses of the groundwater samples show strong correlations with Ca- Cl and Mg-Cl. TDS shows strong positive correlation relation with Na, Ca, Cl, and SO4. CA was used to organize the fifteen sampling locations into four clusters with similar water quality parameters. CA is divided into four clusters of similar characteristics related to water quality. PCA shows a high positive correlation between groundwater parameters and factor 1. Factor 1 reflects the role of the geogenic process like the dissolution of carbonate and dolomitic rocks prevalent in the study area.