City guide · ZIP / utility based

San Bernardino tap water quality

San Bernardino ZIPs may map to city or valley water systems. Always open your ZIP report for the matched PWSID.

Honest framing: This is not a citywide water score. We match your ZIP to a public water system using CA service-area data where available. Contaminant lists are curated detections — non-detects are omitted. Educational only — not medical advice, not a faucet lab test, and not affiliated with EWG or any utility.

About 15 ZIP codes in our index are labeled San Bernardino (San Bernardino County). Pick an example below or enter your own ZIP.

Example ZIPs in San Bernardino

92401 San Bernardino 92404 San Bernardino 92402 San Bernardino 92403 San Bernardino 92405 San Bernardino 92406 San Bernardino 92407 San Bernardino 92408 San Bernardino 92410 San Bernardino 92411 San Bernardino 92413 San Bernardino 92415 San Bernardino

Utilities often matched near San Bernardino

Names come from public CA water-system records for ZIPs labeled San Bernardino. Your block may differ — always open the ZIP report.

San Bernardino City
Camp Waterman Mwc
San Bernardino Valley WD
Muscoy Mwc No. 1
Glen Helen Water System
Gilbert Street Complex

Want the full drinking water report?

Open a ZIP report for curated detections vs EPA limits and CA health guidelines. Open report for 92401 →

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