ASSESSMENT THE WATER QUALITY INDEX OF AL-HINDIYA DRINKING PROJECTS

The assessment process of drinking water quality are considered the most important issue that must be studied and consideration because of its significant effect on human health. In this study, two drinking projects within Al-Hindiya province in Karbala city were evaluated based on weighted arithmetic and CCME water quality indexes during years 2014 to 2016. The physicochemical parameters which were used in developed these indexes involve: Turbidity (Turb.), pH, Electrical Conductivity (EC), Alkalinity (Alk.), Calcium (Ca^+2), Magnesium (Mg^+2), Chloride (Cl^-), Total Hardness (TH), Sulfate (SO4^-2), Total Dissolved Solids (TDS) and Sodium (Na^+). The Iraqi standard for drinking water (IQS- 417, 2001 ) was adopted. The results of the weighted arithmetic WQI showed that the raw water was unsuitable for drinking while the treated water had a good quality and the improvement ratio in water quality were between (75-90)%, while the CCME-WQI results indicate that the raw water quality was fair and the treated water good for drinking except in dry period of year 2015 where the quality of treated water was fair for drinking, knowledge that the raw water index was also the lowest in this time, the improvement ratio in water quality index based on this index were between (11-20)%. Also, it can be concluded that the improvement in water quality for both index were greater in dry season than wet season.