Abstract
The present study is carried out to detect some quality properties of groundwater at Tuz,. The results showed that air temperature noted minimum at ranged between (8-35)C° , and The recorded temperatures of ground water values range between (18-25)C°, Turbidity values for all wells water at the study area ranged (0.00-29.88)NTU, It is obtained that wells near-off the mountain chain Nafed dag increase of electric conductivity comparative ranged between (734-6890)µs/cm. Groundwater in the study area was Brackish dependence to the total dissolved salts ranged (20-5860)mg/l . The pH values ranging between (4.15-8.91) . It was noted that the values of the dissolved oxygen are few and almost non-existent in some cases it ranged between (0.8 -0.30)mg/l. Analysis of biological oxygen demand refers to wells water (very clean) levels involving (0.00 -0.15)mg/l. Reason of groundwater very hardness ranging values of total hardness , calcium and magnesium hardness between (300-2440) mg/l , (160-1400)mg/l and (44-1580)mg/l respectively. The total alkalinity ranged between (74-600)mg/l , The chloride ions in ground water of the studied within the permissible limits for watering of animals and irrigation of plants, with values range (0.00-349.89)mg/l . Sulphates range between (134.5-3326)mg/l .Sodium values for all wells water at the study area ranged (112.35 -495.59)mg/l. Potassium values for all wells water at the study area ranged (1.158-51.036)mg/l. As for plant nutrients , ranged between the values of silica (9.688-25.981)mg/l.The concentration of active nitrite ions ranged between (0.000 –1.212) µg NO-NO2/L .As the values of phosphate , ranged between (0.26-0.399) µg P-PO4/L during the study period.