Analysis of present status of drinking water in rural areas in Anyang county over 2010-2011

Objective To investigate the safety and sanitation of drinking water in rural areas in Anyang County and provide scientific basis for government agency to improve rural drinking water quality.Methods Based on the investigation of drinking modes of rural residents and in consideration of the distribution of rural population in Anyang County,six towns were selected at random,wherein 12 safe drinking water works and 30 water supply works randomly selected nearby were taken as water quality investigation samples,each of which was sampled twice respectively in high flow period and low flow period every year,continuously for two years.Water samples were inspected in accordance with Standard Examination Methods for Drinking Water(GB5750-2006) and results were evaluated in accordance with Standards for Drinking Water Quality(GB5749-2006).Results Among 48 samples from safe drinking water works,35 samples were determined qualified,the percent of pass was 72.92%;with respect to separate water supply works,37 of 120 samples were determined qualified,the percent of pass was 30.83%.Unqualified items included fluo ride,chloride,sulphate,total hardness,total dissolved solids,total number of bacterial colony and total coli-group.Conclusion Rural drinking water in Anyang County was at a low sanitary level and centered on separate water supply works.Therefore,it is suggested to further expedite the construction of safe drinking water woks in rural areas in Anyang County,perfect their post-management and put into effect all measures for safe drinking water.