为全面了解我省集中式供水卫生状况和水质质量，预防介水传染病的发生和流行，确保人民的饮水卫生与安全，我们于１９９４年７～９月，重点对全省县级以上的集中式供水单位、大型企业自备供水站和铁路供水站进行了调查，并于１９９７年对以上单位进行了复查，现报告如下。... In order to fully understand the sanitary conditions and quality of centralized water supply in our province, prevent the occurrence and prevalence of water-borne infectious diseases and ensure people’s hygiene and safety of drinking water, we focused on the concentration above the county level in the province from July to September 1994 Water supply units, large enterprises owned water supply stations and railway water supply stations were investigated and in 1997 the above units were reviewed, are as follows. ...