Groundwater Quality Assessment in Chak Karstic Sedimentary Basin, Wardak Province, Afghanistan

Abstract

The research focused on assessing groundwater quality in Jawharkel, Ghanikhel, Chak, Mandukhel, Dawrankhel, Noorkhel, Baba Qala, Sanikhel, Muhkumkhel, and Rasheeddan villages, and specifically intended to measure groundwater physical and chemical parameters in the mountainous areas of the Chak Karstic Sedimentary Basin in Chak District, Wardak Province, located in Afghanistan’s central part. The analyzed parameters included electric conductivity, pH, turbidity, odor, taste, color, hardness, as well as chloride (Cl2), nitrogen (N), fluoride (F), iron (Fe), arsenic (Ar), ammonia (NH3), and sulfide (SO4) content. All the analyzed chemical and physical parameters were found to be within acceptable limits. The results obtained were compared with the WHO drinking water quality standards. The study revealed that the values of physical parameters such as color, taste, odor and turbidity fell within the acceptable (recommended standard) limits; that the examined samples demonstrated no toxic elements and/or components; and that the analyzed chemical parameters were likewise within the permissible limits recommended by WHO and ANSA. Water quality in the target rural area proved to be better compared to the concerns of its residents and households, and that local water posed no threat to residents’ health and survival. The article emphasizes the importance of properly applying water quality indicators previously not adequately explored in the target area.