5.5: each water rating carries two results, one crediting externally supplied recycled water and one treating it as mains; any unknown portion of recycled supply is treated as mains. The source, quantities and any non-recycled component of the recycled supply are documented; water exported from the premises is never netted off consumption (9.4).
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.