California laboratory directory
State-certified laboratory
Los Osos Water Recycling Facility Laboratory
2270 Los Osos Valley Road, Los Osos, CA, 93402
Services listed in the certification record
Certified for: Drinking water
Address2270 Los Osos Valley Road, Los Osos, CA, 93402
Phone(805) 781-5111
Certification statuscertified
Certifying stateCalifornia (CA)
Residential customersResidential customers: No
Sample methodSample intake unknown — confirm with lab
Source listOfficial state source
How to use a water testing lab
Contact the laboratory before collecting a sample. Ask whether it offers the test you need, request its current sampling instructions and containers, and confirm timing, pricing, and how to submit the sample.
Listing data fetched from the official source: 2026-09-05T03:25:53+00:00 · View listing data (JSON)
Is this your lab?
Claim this listing or report an update: email hello [at] watertestingfinder [dot] com and put lab ID CA-11382 in the subject line.