Under California's CALGreen Code (Title 24, Part 11), what is the maximum allowable flow rate for new bathroom faucets in residential construction?
Correct Answer
B) 1.5 gallons per minute (gpm)
CALGreen Section A4.303.1.1 mandates that bathroom faucets in residential buildings shall not exceed 1.5 gpm at 60 psi. This water conservation requirement is more stringent than federal standards and helps California meet its water efficiency goals.
Why This Is the Correct Answer
Option A is correct because California's CALGreen Code Section A4.303.1.1 specifically mandates that bathroom faucets in residential construction must not exceed 1.5 gallons per minute at 60 psi. This stringent water conservation requirement is part of California's comprehensive green building standards and is more restrictive than federal standards, reflecting the state's commitment to water efficiency and environmental sustainability in building construction.
Why the Other Options Are Wrong
Option A: 2.5 gallons per minute (gpm)
2.2 gpm is the federal standard for bathroom faucets under the Energy Policy Act, but California's CALGreen Code imposes stricter requirements. This flow rate would not comply with California's water efficiency mandates for residential construction, which require bathroom faucets to be limited to 1.5 gpm maximum.
Option C: 2.2 gallons per minute (gpm)
2.0 gpm exceeds California's CALGreen Code requirements. While this flow rate might be acceptable under federal standards or in other states, California's environmental regulations are more stringent. The CALGreen Code specifically caps residential bathroom faucets at 1.5 gpm to promote water conservation and meet the state's sustainability goals.
Memory Technique
Remember '1.5 for the Golden State' - California's CALGreen Code requires 1.5 gpm for bathroom faucets, reflecting the state's leadership in water conservation.
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