Water at a Glance - Federal Center
Annual Water Use (Modeled) 200,000 gallons building water use, 1.5 million gallons of irrigation water use, 2.2 million gallons of cooling tower water use. (Actual water use is not available due to insufficient data from meter readings.)
The site retains the 95th percentile rain event, and treats 99% of the annual runoff. Roof water is captured and retained in a 25,000 gallon cistern for reuse.