Measure E7: Monitoring and Reporting

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• The estimated annual percentages for measure E7 have in many cases noticeably changed compared to our previous releases of these data. These changes are primarily due to recent efforts by several states to clean up errors in their violation data.
• In 1993, approximately 17 percent of children lived in an area served by a community water system that had at least one monitoring and reporting violation. This figure was about 16 percent in 2007.
• A relatively large number of monitoring and reporting violations occurred for the lead and copper standards. Approximately 7 percent of children in 1993 were served by public water systems with monitoring and reporting violations for lead and copper, and about 6 percent of children in 2007.  
• The percentage of children living in areas with a chemical and radionuclide monitoring violation declined from approximately 8 percent in 1993 to about 5 percent in 2000, then increased up to about 9 percent in 2002, and since then has decreased to about 7 percent of children in 2007.

Related Measures:

• Criteria Air Pollutants (lead)
• Lead in the Blood of Children
• Neurodevelopmental Disorders
• Lead in California Schools