Lawrence Berkeley National Laboratory

This report and its accompanying Microsoft Excel workbook summarize water data we found to support efforts of the Environmental Protection Agency s WaterSense program. WaterSense aims to extend the operating life of water and wastewater treatment facilities and prolong the availability of water resources by reducing residential and commercial water consumption through the voluntary replacement of inefficient water-using products with more efficient ones. WaterSense has an immediate need for water consumption data categorized by sector and, for the residential sector, per capita data available by region. This information will assist policy makers, water and wastewater utility planners, and others in defining and refining program possibilities. Future data needs concern water supply, wastewater flow volumes, water quality, and watersheds. This report focuses primarily on the immediate need for data regarding water consumption and product end-use. We found a variety of data on water consumption at the national, state, and municipal levels. We also found several databases related to water-consuming products. Most of the data are available in electronic form on the Web pages of the data-collecting organizations. In addition, we found national, state, and local data on water supply, wastewater, water quality, and watersheds.