Under the Consumer Confidence Rule, the US Environmental Protection Agency requires public water suppliers that serve community water systems (same people year-round) to provide their customers with consumer confidence reports (CCR). These reports are also known as Annual Water Quality Reports or Drinking Water Quality Reports. The CCR summarizes sources used (i.e., rivers, lakes, reservoirs, or aquifers), any detected contaminants, compliance, and educational information. The reports are due to customers by July 1 of each year.