Credits WEc1 WEp1 In the second line of the first paragraph, remove "and subtracting any nonpotable water supply" Date Mon, 07/19/2010 - 00:00 Updated date Sat, 02/14/2015 - 00:00 Campus Applicable Off Internationally Applicable Off Ref Guide Name and Edition Pre-v4 Green Interior Design and Construction, 2009 edition