In prior versions of LEED, sensor faucets were given a credit for reducing hand washing duration from 15 seconds to 12 seconds. v4 describes calculations for a metered faucet (assumed to be faucets where the user presses a button and the faucet has a set cycle duration) but I don't see how to address sensor faucets (triggered by hand movement). Is there a standard reduction in duration for sensor faucets? A 2016 academic study shows water savings with a .5 gpm sensor faucet to be 32% over manual faucets, and 54% savings for a .35 gpm sensor faucet. Using this study, is it appropriate to change the lavatory duration from 30 seconds (standard) to 24 seconds for .5 gpm and 15 seconds for .35 gpm?