Assessment of Water Quality Index (WQI) in the Water Distribution System in Kalar, Sulaymaniyah, Iraq

الملخص

In this research, Water Quality Index (WQI) was mathematically assessed to determine water quality at (Bardasoor Treatment Plant – Kalar) and at different points within the neighbourhoods, away from some distance from the treatment plant to check the quality of water in the distribution network. A water sample was collected from the input point at Bardasoor Treatment Plant before the process of treatment, and another sample was collected after the treatment process and before the distribution process. As well, (40) samples of water were collected at (8) stations and were all subjected to Physico-chemical tests. The index classified the quality of water within the water distribution system in Kalar as (good quality) except (2) stations which were classified as (poor quality); despite, some parameters works compete unfavourably with (WHO) standards.