To minimise water contamination and provide clean drinking water: all water systems designed to the national health and safety guidance to minimise microbial contamination such as legionellosis, with failsafe humidification where required (the minimum standard at every rating); and a wholesome, accessible supply of potable drinking water in permanently staffed areas by point-of-use coolers or provision in kitchenettes, on each floor and in the canteen, with the equivalent public-area provision for short-stay residential institutions.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.