Transparent Water Quality Reports for the Community
Our regional water facilities are tested at different periods in accordance with the EPA-mandated testing cycle. We are dedicated to transparency, and our test results will be published on this page as they become available. See the EPA’s UCMR Occurrence Data webpage for detailed quarterly test results from water systems across the country, including Orange County Utilities.
Understanding the Test Results
Regulations for drinking water are based on “points of entry” into our water system. These are sites where potable water is pumped from the water supply facility into the distribution system for delivery to customers. These points of entry are the collection sites from where we take samples. On the test results table, “ND”
means there were no detections of PFAS compounds above the minimum reporting level for the UCMR program. Test results are reported in
parts per trillion, a very tiny unit of measure, as shown below.