Evaluation of Drinking Water Biological and Chemical Quality in Rural Villages Under Vision of Rabat Sarpush and Shamkan Villages of Sabzevar City

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Abstract

Introduction: qualitative evaluation of drinking water, maintain of public and consumer health are the goals of this study. Since drinking water of subjected villages supplies from underwater and according to pollution of underwater holes by Sewage disposal and usage of animal fertilizers, present study will evaluate the biological and chemical condition of drinking water in rural villages under vision of Rabat Sarpush and Shamkan villages in 2011. Material and methods: by conducting regional studies and Identification of aquifers, every available rural village (18 villages) in these two villages was chosen to take apart in this descriptive-analytical study. Biological and chemical analyses were done and their results compared with standards. Results: in all 18 villages water PH was between 7.6 and 8.6, in 11% the Residual chlorine was 0 and in 16.6% of villages this Residue was above 0.8 mg/dl. In 9.6% high rate of coliforms were seen. In 11% of samples hardness of water was upper than optimum level and in 0.05% of samples this rate was upper than allowed level. Chloride level in 39% of villages was upper than optimum level and sulfate level in 0.05% was higher than allowed rate. Conclusion: in order to control the biological and chemical quality of drinking water in the studied villages, it’s preferable to took samples periodically from terminal network areas. Also encouraging the councils to transit rural water to the autonomous network, respect the aqueduct distance from Agricultural land, improving the barefaced opening of wells in line with the aqueduct, installation of warning signs for the awareness of population and chlorine usage can be beneficial

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Beyhagh
Volume 17, Issue 1
April 2012
Pages 13-17

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