privatewelldata / Certified labs – California ELAP accreditation
Walnut Valley Water District
Walnut Valley Water District is on the official list: California ELAP accreditation. Updated 2026-10-17.
Walnut, California
⚠ Likely serves public water systems only. Call ahead: certification lists include some labs that only test for public water systems.
- Certified by
- California ELAP accreditation
- Official scope
- Lab type: Public Water System (Municipal). ELAP certificate 2644
- Contact
- 271 South Brea Canyon Road, Walnut, CA, 91789
(909) 595-7554 - Source
- California Water Boards – ELAP drinking water accredited laboratories
- Licence
- Public record (California State Water Resources Control Board)
- Record refreshed
- 2026-10-17
Nearby certified labs
- Eurofins PomonaPomona, CA · 8 km
- Eurofins Built Environment Testing West - Pomona, CAPomona, CA · 8 km
- Enviro-Chem, Inc.Pomona, CA · 9 km
- Pomona Treatment Plant LaboratoryPomona, CA · 9 km
- Metropolitan Water District of Southern California - Robert B. Diemer Water Treatment Plant LaboratoryYorba Linda, CA · 15 km
- ATEL, LLCChino Hills, CA · 15 km
All labs on this list · What should I test for? · Test costs