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COVID-19 Updates: Get the latest public information related to coronavirus disease 2019 (COVID-19) at

The Environmental Health Services (EHS) office is closed to in-person visitation until further notice, however we remain open for business via or by telephone at (805) 781-5544.  Please visit for EHS COVID-19 guidance documents.

The Health Agency is actively responding to COVID-19 and continuing to provide other essential services. Please see updates from Animal Services, Behavioral Health, Public Guardian and Public Health

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Environmental Health Services

Health Agency | Public Health

Private Well Owner Resources

A Guide for Private Domestic Well Owners

How to Maintain Your Well Video

Well Owners Checklist

Water Testing Guidance

Testing Your Water Well

Some unhealthy water contaminants, such as bacteria, heavy metals, nitrates, radon, and many chemicals, can only be found by laboratory testing.
A water testing laboratory can test your well water. The laboratory will supply the sampling bottles and can help you sample your own well.

More Resources


Well Program (Construction, Destruction, and Maintenance)
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