privatewelldata / Certified labs – California ELAP accreditation
Metropolitan Water District of Southern California Robert A. Skinner Water Treatment Plant Laboratory
Metropolitan Water District of Southern California Robert A. Skinner Water Treatment Plant Laboratory is on the official list: California ELAP accreditation. Updated 2026-10-17.
Winchester, 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 1618-S5
- Contact
- 33740 Borel Road, Winchester, CA, 92596
(909) 392-5240 - 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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