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为解决干旱地区长期用水难的问题，近几年定西县按“１２１”雨水集流工程的要求，把全县农村的储水土窖全部改制成水泥窖，并对水源防护区进行相应改造。为了解改造后窖水的卫生质量，我们于１９９８年４月对全县部分乡镇的水窖进行抽样调查分析，现报告如下。１调查方法１．
In order to solve the problem of long-term water shortage in arid areas, in recent years, Dingxi County, according to the requirements of the “121” rainwater harvesting project, reorganized all the reservoir silos in rural areas into cement cellars and rehabilitated the water source protection areas. In order to understand the health quality of the cellar water after the renovation, we conducted a sample survey and analysis of the cellars of some villages and towns in the county in April 1998, and the report is as follows. 1 survey method 1.