本文认为，为了公平地解决真正的公共卫生问题 各种规模的社区面临的问题，可承受性 必须清楚地理解和理解 演说。在经历了七年的 根据目前的饮用水可承受性标准，美国环境保护局（USEPA）在2006年得出结论，改进 应考虑解决内部的情况 收入低于平均水平或高于平均水平的社区 成本（美国环保局，2006年）。本文讨论了可承受性和豁免、可承受性和差异、审查中的可承受性标准，以及实现可持续水系统。包括11篇参考文献。

This article argues that in order to equitably address real public health issues facing communities of all sizes, affordability must be clearly understood and addressed. After seven years of experience with the current drinking water affordability criteria, the U.S. Environmental Protection Agency (USEPA) concluded in 2006 that refinements should be considered to address the situations within communities with below-average incomes or above-average costs (USEPA, 2006). The article discusses affordability and exemptions, affordability and variances, affordability criteria under review, and achieving sustainable water systems. Includes 11 references.