privatewelldata / Certified labs – California ELAP accreditation
Contra Costa Water District Laboratory
Contra Costa Water District Laboratory is on the official list: California ELAP accreditation. Updated 2026-10-17.
Concord, 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 1548
- Contact
- 2015 Bates Avenue, Concord, CA, 94520
(925) 688-8091 - Source
- California Water Boards – ELAP drinking water accredited laboratories
- Licence
- Public record (California State Water Resources Control Board)
- Record refreshed
- 2026-10-17
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