Which requirement is NOT typically associated with water distribution systems serving more than 350 people?

Water distribution systems serving populations greater than 350 people often have specific requirements to ensure safety, reliability, and emergency preparedness. Among these, mapping locations of valves and hydrants is crucial for maintenance and responding to emergencies effectively. Having an Emergency Response Plan is essential for dealing with potential hazards, such as contamination or system failures, ensuring that the community is prepared for adverse situations. Additionally, having at least two wells with backup power enhances reliability, allowing for continuous water supply even during power outages or equipment failures.

Providing bottled water to residents is not a standard requirement associated with these systems. While bottled water may be offered in specific emergency situations or temporary disruptions, it is not a foundational requirement for the operation of a water distribution system. Instead, the emphasis is on ensuring that the distribution system itself can deliver clean and safe water adequately to the population served. Therefore, the choice regarding bottled water stands out as the one that does not typically align with regular operational and regulatory requirements in place for public water services.