本幻灯片演示列出了有关地下水规则的要点，包括其历史、弱点、普遍认为这是一项小型系统法规、大型地下水系统的问题，以及加利福尼亚州唐尼市的案例研究。

This slide presentation lists bulleted points concerning the Groundwater Rule, including its history, weaknesses, prevailing belief that it is a small system regulation, issues for large groundwater systems, and a case study of the City of Downey, California.