California laboratory directory

State-certified laboratory

Pat-Chem Laboratories

1824 First Street, San Fernando, CA, 91340

Services listed in the certification record

Certified for: Drinking water

Drinking water
Address1824 First Street, San Fernando, CA, 91340
Certification statuscertified
Certifying stateCalifornia (CA)
Residential customersResidential service unknown — confirm with lab
Sample methodSample intake unknown — confirm with lab

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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