Use this EPA calculator to document compliance using Option 2 (reduced irrigation). This sample calculator has been completed for a hypothetical project building in Vermont. Credits WEp1 WEc1 WEc1 WEp1 WEc1 WEp1 WEc1 WEc1 WEp1 WEc1 WEc1 WEp1 WEc1 WEp1 WEc1 WEc1 WEp1 WEc1 WEc1 WEp1 WEc1 WEc1 Documents Example Completed WaterSense Water Budget Tool