本文描述了最近的一项研究，旨在基于加利福尼亚州奥兰治县的一个代表性家庭样本，对节水型住宅管道装置的现有饱和度进行代表性估计。主要关注的是概念、方法和后勤问题，涉及从多家零售水供应商服务的区域内的真正具有代表性的住户样本中确定、招募和收集信息。此外，还总结了本研究得出的饱和度估算和其他用水信息。包括桌子。

This paper describes a recent study designed to produce representative estimates of the existing saturation of water efficient residential plumbing fixtures based on a representative sample of households in Orange County, California. Primary attention is given to the conceptual, methodological and logistical issues involved in identifying, recruiting, and collecting information from a truly representative sample of households located in an area served by multiple retail water providers. Saturation estimates and other water use information developed by this study are also summarized. Includes tables.