The Canadian Model Water Quality Index was used to evaluate the water quality in some areas of Shatt Al-Arab and the East Hammar Marsh (CCME WQI) during the period from October 2020 to September 2021. The variables used in calculating the index were water temperature, pH value, biological oxygen demand, salinity, and dissolved oxygen. The analysis at Shatt Al-Arab's was categorized as marginal, as stated during the analysis conducted by the CCME-WQI. On the other hand, the East Hammar Marsh's water quality recorded poor rank. This indicates that the environmental factors studied are usually outside the permissible levels.  The statistical analysis's findings indicated that there were no significant differences between the first stations (Al-Dair) and the second (Al-Haritha), and there were significant differences found in the third station (Al-Mashab).