Public Water Supply Sample Schedules

Note To Water Suppliers

Please view the Water System Sample Schedules (PDF) for sampling requirements for all public water supplies in Orange County.

In order to find your specific system, please use the edit and find tool at the top of the screen. Water systems are not necessarily in alphabetical order so searching by federal ID Number or system name is the easiest way to find your schedule.

IMPORTANT NOTE: Sample schedules are only accurate if all 2021 samples were collected on time. If any monitoring violations are issued for your water system for 2021 you will have to check back to get an updated sample schedule. Missed tests in 2021 will require sampling in 2022 which may not be reflected in the attached schedules.