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

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 for questions or to coordinate for special arrangements. Please visit for current EHS COVID-19 guidance documents or

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

Well Drillers' Resources

Launch DrillerView, a mobile friendly and interactive Map Viewer


  1. California Well Drilling Standards (Bulletin 74-81 and 74-90 Combined)
  2. San Luis Obispo County Water Well Code 8.40
  3. Well Completion Report Information
  4. California Department of Water Resources Water Data Library
  5. Water Testing Guidelines
  6. Well Permit Application Approval Process-Checklist
  7. Well Site/Seal Inspection Checklist
  8. Well Driller Requirements


Well Program (Construction, Destruction, and Maintenance)
Water Well Construction Permitting
Water Well Destruction Permitting
Monitoring Well Construction Permitting
Monitoring Well Destruction Permitting
Well Program Forms: Permit Applications
Well Program Forms: Other
Well Program Reference Materials
Contact Us
Environmental Health Fee Schedule

Frequently Asked Questions