A potable well __________ cross connected with the water supply from MUD if used as an emergency backup to the water supply for a building.

In the context of a potable well used as an emergency backup supply for a building, it is critical to ensure the safety and quality of drinking water. Allowing a potable well to be cross-connected with the municipal water supply could pose significant health risks, as contaminants from either source could enter the drinking water system. Regulations typically prohibit such cross-connections to prevent backflow incidents that could contaminate the municipal water supply.

Thus, the answer indicates that a potable well will not be allowed to connect with the city’s water supply. This aligns with health and safety regulations designed to protect public water systems from contamination, ensuring that water remains safe for consumption. Options suggesting approval under certain conditions or inspection do not reflect the strict regulations in place regarding cross-connections with potable water supplies.