City of Modesto Water Quality Control Laboratory

City of Modesto Water Quality Control Laboratory is on the official list: California ELAP accreditation. Updated 2026-10-17.

Modesto, 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: City (Municipal). ELAP certificate 1362
Contact: 1221 Sutter Avenue, Modesto, CA, 95351
(209) 577-6279
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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