为避免地下水污染带来的麻烦，供水商应测试优先有毒污染物，并了解其流域的废物处理实践和地下水流动系统。有助于维持健康饮用水供应的策略包括降低泵送率、要求在关键补给区控制土地使用，以及对上游污染源提起损害赔偿诉讼和禁令。包括2个参考文献。

To avoid troubles stemming from groundwater contamination, water suppliers should test for priority toxic pollutants and learn the waste disposal practices and groundwater flow systems of their watersheds. Strategies useful in maintaining a healthy drinking water supply include reduction of pumping rates, demands for land-use controls in critical recharge zones, and lawsuits for damages and injunctions against upstream sources of contamination. Includes 2 references.