What determines the classification of a water system?

The classification of a water system is primarily determined by the number of connections or the population served. This classification is essential for regulatory compliance and for understanding the scope of operations and the resources needed for maintenance and management of the system. Different classes of water systems have varying regulations, operational requirements, and monitoring needs based on the number of people they serve or the number of connections they provide water to.

For example, community water systems serve more than 25 people for at least 60 days per year, while non-community water systems serve fewer than that or do so intermittently. This classification helps public health officials assess risks and ensure that public water supplies meet safety standards.

Other factors, while important for understanding the operation and management of water systems, do not directly determine the classification. The type of water treatment used, the source of the water, and the geographical location may influence the management practices and the quality of water provided, but they are secondary to the fundamental classification based on population or connections.