Evaluation of Microbial Pollution of Drinking Water in North-West Eghlid

Limitation of water resources and probability increase of waters pollution resulted from human activities have leaded intensification of control plans for quality of waters. Excremental pollution of water resources is one of substantial problems which their recognition is of great importance in preventing epidemic digestive microbial diseases. For the purpose of conducting study and determining the quality of waters in wells and springs existing in north-west area of Eghlid, sampling was performed from 10 wells and springs in north-west of Eghlid in July 2013 and March 2014, and the water samples of this region were assessed respecting to existed indexes of coliform. The results showed that the microbial pollution of springs in July was rather than March. Also, the results indicated that average coliform existing in springs was more than the world standards, and some of the springs did not have appropriate quality, so that 10% of samples had coliform pollution, which were related to Ghormas-Beigi spring, and 10% of samples had non-coliform microbial pollution, which were related to Hosseinak aqueduct. The reason for further average of coliform in springs, in comparison to the world standards, is the pollution of springs with different types of human and bestial sewages which are resulted from the residency of nomads and farmers in the environment of springs.