Precondition (mandatory for certification). A minimum of one drinking water dispenser (and one in each dwelling unit) supplies water meeting limits for metals and inorganics (including arsenic, cadmium, chromium, copper, fluoride, lead 0.01 mg/L, mercury, nickel, nitrate, nitrite, total chlorine), disinfectant residuals and by-products (free chlorine, trihalomethanes, haloacetic acids), and pesticides and organic contaminants either via a recent municipal water quality report covering listed substances or via on-site testing. Parts: (a) Meet Chemical Thresholds; (b) Meet Thresholds for Organics and Pesticides.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.