李文[1]用超标项参加总指数迭加的综合评价方法,对某地四口井的水质进行了综合评价,收到了令人满意的结果。但作者在不考虑实测值小于标准的项目时,忽视了很重要的一点,即“当Ci/Li>1时,Ci/Li值越高,表示水质越差,对人体健康影响也越大”[1],由此,在评价时不可避免地会出现差错。为此,本文对其进行了改进,给出了在忽略非超标项目的同时,对各超标项目分别给以权值的总指数评价方法,评价的效 Li Wen [1] used the super-item to participate in the comprehensive evaluation method of superposition of the total index, and conducted a comprehensive evaluation on the water quality of four wells in a certain place, and received satisfactory results. However, ignoring the fact that the measured value is less than the standard, the author ignores the important point that “when Ci / Li> 1, the higher the Ci / Li value, the worse the water quality and the greater the impact on human health” [1], therefore, in the evaluation of errors will inevitably occur. To this end, this paper improves on it, and gives the evaluation method of total index, which gives weight to each over-standard item while ignoring non-over-standard item,