最近调查了部分农村吃水情况,发现有90%的村民用手压井。这些手压井大多建在农户院内,水井深度多在10米至15米之间,距厕所、牲畜栏污染源很近,水井很容易受污染。根据水井抽样检查,农户井水含菌率普遍超标,其中大肠菌超标率高达98.6%,对人体健康很不 Recently, some draughts in rural areas were investigated and 90% of the villagers found that they were hand-pressing wells. Most of these hand-pressure wells are built in the farmer’s homes. The depth of the wells is usually between 10m and 15m. It is very close to the pollution sources of toilets and livestock pens, and the wells are easily contaminated. According to the sampling inspection of wells, the bacteria content in the well water of the farmer household exceeded the standard, among which the over-standard rate of the coliform bacteria was as high as 98.6%, which was not good for human health.