Which best describes a potable water system?

A potable water system is specifically designed to provide water that is safe for human consumption. This means that the water has been treated and tested to meet health standards set by regulatory agencies, ensuring it is free from contaminants and pathogens that could pose health risks. The primary function of such a system is to deliver clean drinking water to households, businesses, and public facilities.

In contrast, irrigation systems focus on providing water for agricultural or landscaping purposes, while wastewater treatment systems handle the processing of used water to make it safe for discharge or reuse. Rainwater collection systems primarily aim to capture and store rainwater for various uses but do not inherently ensure the safety of that water for drinking. Thus, the distinction is clear; a potable water system directly relates to water that people can safely drink, which is why that choice is the most accurate description.