Survey on Hygienic Status of Rural Drinking Water Projects in Weifang City

[Objective]To understand the hygienic status of rural drinking water,and develop project planning for the safety of drinking water.[Methods] In April and May of 2008,the safety engineering project in rural areas of Weifang was investigated for its general situation,and water quality was also tested by sampling.[Results]Drinking water in rural areas mainly came from ground water,among which deep ground water occupied 80.95%.water treated completely occupied 4.23%.The water supply project with sterilized equipment only accounted for 2.64%;of 378 water samples,the total qualified rate was 47.09%.The qualified rate of finished water and terminal water was 51.32% and 50.26% respectively;The unqualified items included nitrates(in terms of nitrogen with 11.38% beyond the standard),the total number of colonies(31.75% beyond the standard),total coliforms(14.55% beyond the standard).[Conclusion]The contents of micro-organisms and nitrates exceed the norms severely.The qualified rate of water quality was relatively low.Potential safety hazard exists in rural drinking water.