结果：二次供水合格率仅为12·2%，与城市供水管网末梢水水质相比较差异有统计学意义。

Results: The yield rate of secondary water provide water quality was only 12.2%, significantly lower than direct provide water.

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结果：直饮水的合格率(89.6%)不及末梢水的合格率(95.8%)(均按CJ 9 4 - 2005饮用净水水质标准)。

Results: The eligibility rate of directly drinking water was 89.6%, which was inferior to that of table-water (95.8%).

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