Is CITY OF SAN JOSE - NSJ/ALVISO Water Safe to Drink in 2026?
California · PWSID CA4310019 · Surface water
Population served
45,559
Cities served
SAN JOSE
State / jurisdiction
California (CA)
PWSID
CA4310019
D
TAP WATER GRADE
Poor
Model score 45/88 from violations, PFAS profile, and monitoring signals — not a laboratory test of your faucet.
10 violation record(s) in the latest EPA SDWA quarterly snapshot
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CONTAMINANTS — EPA UCMR5 MONITORING
No UCMR5 PFAS detects on file for this PWS in our bundled national dataset — the system may be smaller than UCMR5 thresholds, had non-detects, or results are not yet linked to this ID. Your retailer Annual Water Quality Report lists other regulated contaminants (chlorine, DBPs, nitrates, etc.).
VIOLATIONS HISTORY (FEDERAL SNAPSHOT)
EPA’s national SDWA quarterly files associate 10 violation-related records with this system in the same reporting quarter as the utility snapshot used on WaterCheckup. This is not a complete historical docket — see ECHO and SDWIS for full compliance context.
Based on CITY OF SAN JOSE - NSJ/ALVISO's monitoring and violation profile, here are vetted filtration options — same picks framework as our city reports.
TOP PICKS FOR CITY OF SAN JOSE - NSJ/ALVISO
⚠ EPA violations / contaminants in monitoring data
WHY THIS FOR CITY OF SAN JOSE - NSJ/ALVISO · Chosen for CITY OF SAN JOSE - NSJ/ALVISO because the latest federal SDWA snapshot lists substantial violation activity. Certified reverse osmosis provides the broadest residential barrier for households that want margin beyond legal compliance.
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