To reduce water demand from non-domestic uses: one credit where the design team identifies every water demand beyond the domestic-scale sanitary and drinking components, such as pools, vehicle wash, irrigation, cooling and process uses, and identifies systems or processes that show, through good-practice specification or design, a real cut in the building's overall water demand.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.