Abstract
The current study aims to assess the groundwater quality in the Wana area, Northwest of Mosul. Water samples were collected from 18 selected wells within the study area during the dry season of October 2020 and the wet season of April 2021. Field and laboratory measurements including electrical conductivity (EC), TDS, pH, Total hardness, and major and some minor ions analyses were performed following standard methods. The results revealed a wide variation of EC values ranging from 0.66 to 5.09 ds⋅m-1. All wells have hard water due to the presence of gypsum and carbonate rocks. The water quality index (WQI) values showed that wells drilled in the Fatha Formation and wells of mixed water from both the Fatha Formation and the Quaternary sediments provide low-quality drinking water. Wells that only penetrate the Quaternary sediments yield good-quality drinking water. According to the irrigation WQI, the Fatha Formation wells produce low-quality irrigation water, and the water quality of wells drilled in Quaternary sediments or that penetrate both the Fatha Formation and Quaternary sediments (mixed water) ranges from excellent to acceptable for irrigation purposes.
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