ASSESSMENT OF GROUNDWATER QUALITY IN BORUJEN, FARADONBEH, AND SEFIDDASHT PLAINS

Abstract

The Borujen, Faradonbeh and Sefiddasht, watershed in Chaharmahal and Bakhtiari, Iran, is one of the semi arid regions. Layers of earth are calcareous in the watershed. Assessment of water quality has been carried out to determine the sources of dissolved ions in groundwater. Groundwater is an important water resource in the study area; these resources are under threat of pollution from human activities. The quality assessment is made through the estimation of Ca2+, Mg2+, Na+, K+, Cl-, SO4-2, CO32-, HCO3-, and total hardness as CaCO3, EC, and pH. Based on these analyses, parameters like sodium adsorption ratio (SAR), percent sodium (%Na), residual sodium carbonate (RSC), potential salinity, and permeability index (PI) were calculated. Groundwater quality, forecasting water quality in response to groundwater recharge, discharge with another sources and cited calcareous geological region (through (to pass) from the sediment and dissolution of water soluble minerals), Groundwater quality assessment indicated that water is suitable for irrigation purpose as per FAO standards except higher value of Electrical Conductivity (EC) in some area. Water for drinking purpose was found to be good as per WHO (1982) standards except for high values of water hardness. The
results of this study will be used for developing ground water management plans.