本文将回顾根据《安全饮用水法》制定饮用水标准的依据和方法。导言将涵盖美国政府的结构，因为这涉及制定和执行标准，以及美国饮用水标准的历史。然后，本文将描述制定饮用水标准的过程，以及在《安全饮用水法》重新授权期间解决的一些关键问题。

This paper will review the basis and methodology for setting drinking water standards under the Safe Drinking Water Act. The introduction will cover the structure of the US Government as this relates to setting and enforcing standards, and the history of US drinking water standards. The paper will then describe the process of setting drinking water standards and some of the key issues being addressed during reauthorization of the Safe Drinking Water Act.