LEED Green Associate Practice Test

What are the required flow rates under EPAct of 1992 for water closets to meet LEED's water use requirements?

1. 1.6 gpf

2. 2.0 gpf

3. 3.0 gpf

4. 0.8 gpf

The correct answer is: 1.6 gpf

The correct choice reflects the standards set by the Energy Policy Act (EPAct) of 1992, which established maximum flow rates for plumbing fixtures in an effort to conserve water. Specifically, the legislation mandates that water closets, also known as toilets, must have a maximum flow rate of 1.6 gallons per flush (gpf). This regulation aligns with LEED's aim to promote water efficiency in buildings, leading to reduced overall water consumption. The other options indicate flow rates that exceed the established standard, which would not meet the required criteria set by EPAct. Adhering to the 1.6 gpf requirement not only helps in achieving LEED credits for water use reduction but also supports broader sustainability goals by encouraging the use of efficient fixtures.