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The research is a study of Some physical and chemical in three water purification plants in Baquba district, Diyala governorate, which are supplied with water from the Khurasan River, which springs from Lake Hamrin. 2022, and the results showed that the values of pH concentration fall within the weak basal side of the three stations for a period of four months, as the neutral ratio of pH is (pH = 7). The study found that all water purification plants contained poor amounts of dissolved oxygen and recorded similar values (mg/l) 5.9-8.1 over a period of four months. /l (240) for the Abdul Hamid filtering plant, the potassium and magnesium concentration ratios showed that the most percentage of potassium is (4.6) mg/l for the Zahra refinery after purification, and the lowest percentage recorded was in the Baquba A project filtering plant For the central (0.9) mg / l, the values of the concentration of the magnesium element were acceptable and within the standard limits of the World Health Organization (WHO), and the water turbidity varied between acceptable and unacceptable from one site to another, as the highest value was recorded (8.3) NTU for a project filtering station With the central penalty and the lowest value was (0.5 NTU) for the Zahra filter station, the phosphate ion values showed that they are acceptable, as the values were recorded between 0.2 - 0.07 mg/l for all stations, and the chloride ion values were acceptable and within the specifications, as the highest value was recorded (70) mg/l For Abdul Hamid filtering station, the minimum value is (40) mg/L. The values of total dissolved solids (TDS) for the three stations for a period of four months showed that they are in agreement with the specifications of the World Health Organization, as the highest value was recorded (606) mg/L for the Abdul Hamid filtering station and the lowest value (338) mg/L for the Baquba Central Project liquidation station.