A community water system must post the Consumer Confidence Report on a publicly accessible Web site if it serves more than ...?

The correct answer is based on the requirements established by the Safe Drinking Water Act, which mandates that community water systems serving a certain number of people must make their Consumer Confidence Reports (CCRs) publicly available. For community water systems serving more than 100,000 people, it is required to post the CCR on a publicly accessible website.

This rule is intended to ensure transparency and provide critical information regarding water quality and drinking water standards to a larger population, allowing consumers to be informed about the safety and quality of their water supply. This requirement emphasizes the importance of public access to information regarding water safety, particularly for larger communities where information dissemination through traditional means such as mail may not reach all consumers effectively.

Smaller community water systems serving fewer than 100,000 people have different reporting requirements, which may not necessitate public posting on a dedicated website, thereby highlighting the increased responsibility for larger systems to maintain transparency with their consumer base.