privatewelldata / Certified labs – California ELAP accreditation
Caltest Analytical Laboratory
Caltest Analytical Laboratory is on the official list: California ELAP accreditation. Updated 2026-10-17.
Napa, California
Call ahead: certification lists include some labs that only test for public water systems.
- Certified by
- California ELAP accreditation
- Official scope
- Lab type: Commercial (Commercial). ELAP certificate 1664
- Contact
- 1885 North Kelly Road, Napa, CA, 94558
(707) 258-4000 - 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
- Napa Sanitation DistrictNapa, CA · 2 km
- City of Napa Jamieson Canyon Water Treatment PlantAmerican Canyon, CA · 3 km
- City of Vallejo Water Department LaboratoryVallejo, CA · 10 km
- Fairfield-Suisun Sewer District LaboratoryFairfield, CA · 15 km
- Vallejo Flood and Wastewater DistrictVallejo, CA · 16 km
- Sonoma County Water AgencySonoma, CA · 16 km
All labs on this list · What should I test for? · Test costs