Well and pond water are not considered “reused” for the purposes of this credit and must count as potable water—so you don’t get credit for substituting them for conventional water sources. Water types that do count as reused are: Rainwater;treated w

Well and pond water are not considered “reused” for the purposes of this credit and must count as potable water—so you don’t get credit for substituting them for conventional water sources. Water types that do count as reused are: 

• Rainwater;
• treated wastewater supplied by the municipality or water utility;
• graywater coming from onsite lavatories, sinks, and showers;
• treated blackwater;
• rejected water from a reverse-osmosis treatment process;
• sump-pump water;
• air-conditioning and cooling tower condensate.