本文讨论了1996年《安全饮用水法案》（SDWA）修正案设立的饮用水州循环基金（DWSRF）。项目资金援助包括:实现或维持SDWA要求和保护公共卫生所需的基础设施成本；向各州提供资本化赠款，从而向符合条件的系统提供低成本贷款和其他类型的援助；此外，为能力发展和水源保护提供行政费用和项目资金的资本化补助。

This article discusses the Drinking Water State Revolving Fund (DWSRF),created by amendments to the Safe Drinking Water Act (SDWA) in 1996. Funding assistance for projects include: the costs of infrastructure needed to achieve or maintain compliance with SDWA requirements and to protect public health; capitalization grants to the states, which in turn can provide low-cost loans and other types of assistance to eligible systems; and, capitalization grants for administrative costs and program funding for capacity development and source water protection.