California laboratory directory
State-certified laboratory
Valencia Treatment Plant Laboratory
28185 The Old Road, Valencia, CA, 91335
Services listed in the certification record
Certified for: Drinking water
Address28185 The Old Road, Valencia, CA, 91335
Phone(562) 908-4288
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)
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Claim this listing or report an update: email hello [at] watertestingfinder [dot] com and put lab ID CA-11509 in the subject line.