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

Environmental Health Services is open Monday-Friday from 8am to 5pm and serving one customer at a time (plus one additional person for those with a translator or who require physical assistance).  Please follow social distancing guidelines while waiting outside and call the office at (805) 781-5544 or visit www.slocounty.ca.gov/ContactEHS for questions or to coordinate for special arrangements. Please visit www.slocounty.ca.gov/CurrentEHSOperations for current EHS COVID-19 guidance documents or ReadySLO.org.

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 Supervisors

Leslie Terry

(805) 781-5553; [email protected]

  • Beach Water Quality, Cross-Connection, Land Use, Small Public Water Systems, Water Well Programs and Vector Programs

Aaron LaBarre

(805) 781-5595; [email protected]

  • Body Art, Food Protection, Swimming Pools and Spas.

Peter Hague 

(805) 781-5554; [email protected]

  • Hazardous Materials (CUPA) Programs

Cross-Connection Tester Certification Information

What is the process?

Step 1: Pass an Approved Certification Course

Contact AWWAABPA or ASSE to apply for and complete the course and examination. County of San Luis Obispo also accepts certification from the County of Los Angeles, County of Ventura and the County of Orange.

Step 2: Submit application to County of San Luis Obispo

Submit a completed Tester Application Form to the County of San Luis Obispo Environmental Health Services office. The application must be accompanied by proof of successful completion of any of  the backflow prevention assembly tester certification courses listed in Step 1.

Step 3: Provide Proof of Current Test Kit Calibration

Test kits must be calibrated annually.

Who can use this service?

This service is available to individuals wishing to become certified to test Backflow Prevention Assemblies.

Is there a charge for this service?

This service is provided free of charge.

When and where is this service offered?

This service is available throughout the year during regular business hours except during scheduled holidays.

Please visit us, email us, contact us, or call our office to begin the process.

Location, directions and hours of operation

Click on location name to show hours of operation, directions and phone information

Environmental Health Supervisors

Leslie Terry

(805) 781-5553; [email protected]

  • Beach Water Quality, Cross-Connection, Land Use, Small Public Water Systems, Water Well Programs and Vector Programs

Aaron LaBarre

(805) 781-5595; [email protected]

  • Body Art, Food Protection, Swimming Pools and Spas.

Peter Hague 

(805) 781-5554; [email protected]

  • Hazardous Materials (CUPA) Programs