Rating System

LEED BD+C: New Construction, LEED BD+C: Core and Shell, LEED BD+C: Schools

Rating System Version

v3 - LEED 2009, v2 - Schools 2007, v2 - LEED 2.2

Inquiry

This CIR seeks clarification on what fixtures and systems are covered in WE Credit 2. The credit specifically mentions water closets and urinals as fixtures for conveying building sewage. The subject project is a 35,000 sf office building for dentists and orthodontists. A typical office of this kind uses a water-intensive vacuum system for conveyance of human biological waste in the form of blood, saliva and mucous. A number of the doctors are considering using "waterless" vacuum systems that drastically cut the demand for potable water for purposes of conveying human biological waste. We seek guidance on the following: Should the fixtures that comprise a dentists\' vacuum system for wastewater (blackwater) conveyance be considered when calculating WE Credit 2.