Topic summary
Acre-feet
Extracted from the Wikipedia article Acre-foot.
Application
As a rule of thumb in US water management, one acre-foot is taken to be the planned annual water usage of a suburban family household. In some areas of the desert Southwest, where water conservation is followed and often enforced, a typical family uses only about 0.25 acre-feet (310 m) of water per year. One acre-foot per year is approximately 119.26 cubic feet per day (3.38 cubic meters per day).