Frequent Questions

A community water system (CWS) has performed voluntary monitoring that indicates the presence of non-regulated contaminants. Should this monitoring information be included in the annual Consumer Confidence Report (CCR)? If so, how should this information

EPA strongly encourages CWSs to report any monitoring results that may indicate a health concern, such as detection of a contaminant above a proposed MCL or health advisory level. EPA recommends that the CCR include the results of the monitoring and an explanation of the significance of the results, noting the existence of a health advisory or a proposed regulation. If additional information for non-regulated contaminants is included, it must be displayed outside of the detected contaminants table(s) (Revised State Implementation Guidance for the Consumer Confidence Report (CCR) Rule, EPA816-R-01-002, January 2001).
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