An official website of the United States government.

Due to a lapse in appropriations, EPA websites will not be regularly updated. In the event of an environmental emergency imminently threatening the safety of human life or where necessary to protect certain property, the EPA website will be updated with appropriate information. Please note that all information on the EPA website may not be up to date, and transactions and inquiries submitted to the EPA website may not be processed or responded to until appropriations are enacted.

We've made some changes to If the information you are looking for is not here, you may be able to find it on the EPA Web Archive or the January 19, 2017 Web Snapshot.


Water Budget Tool

WaterSense wide banner

The WaterSense Water Budget Tool can be used to comply with section 4.1.1, Landscape Design, of Version 1.2 of the WaterSense New Home Specification (PDF) (19 pp, 2250 K, About PDF) or to ensure a measure of efficiency and regional suitability for the amount of water applied to a landscape based on local climate data.

The WaterSense Water Budget Tool is also available as an excel tool.

Help Using the Water Budget Tool