The comprehensive evaluation index systen for water head site safety of drinking water was constructed from two aspects of basic indi -cators(water quality safety, water quantity safety, ecological safety) and management indicators.The empirical study showed that: the compre-hensive evaluation of C reservoir in B city of A province is the basic security, indicating the evaluation system can obtain accurate and objective comprehensive evaluation results.%从饮用水水源地安全角度出发，以饮用水水源地安全基础指标（水质安全、水量安全、生态安全）和安全管理指标两个方面，构建了饮用水水源地安全综合评价指标体系，通过实证研究表明：A 省 B 城市主要饮用水水源地 C 水库综合评价为基本安全，说明运用该评价体系可以得出准确、客观的综合评价结果。
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