The current study was conducted on the two projects of Al-Awja and Al-Zaliya water plants. which are located on right side of the river within Salah Al-Din Governorate. with five water stations for the period from September 2019 to May 2020. except for the month of March 2020. https://www.ealisboa.com/limited-value-AXYS-Valhalla-Pen-must-buy/