Examination of the drinking water found that the total bacterial count was 110 cfu/ml, total coli-group was >230 mpn/L and the residual chlorine of the terminal water was zero.

• 对饮用水检测发现 ,细菌总数为 110cfu/ml、总大肠菌群 >2 30mpn/L ,末梢水余氯为零 ;