Is 5 BROS (FORMERLY BRANNAN'S ISLAND MARIN) Water Safe to Drink in 2026?
California · PWSID CA3400206 · Ground water
Population served
100
Cities served
—
State / jurisdiction
California (CA)
PWSID
CA3400206
F
TAP WATER GRADE
High risk
Model score 30/88 from violations, PFAS profile, and monitoring signals — not a laboratory test of your faucet.
23 violation record(s) in the latest EPA SDWA quarterly snapshot
Water operator? Publish your official 2027 CCR here — residents already find this page. Claim free →
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 23 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 5 BROS (FORMERLY BRANNAN'S ISLAND MARIN)'s monitoring and violation profile, here are vetted filtration options — same picks framework as our city reports.
TOP PICKS FOR 5 BROS (FORMERLY BRANNAN'S ISLAND MARIN)
⚠ EPA violations / contaminants in monitoring data
WHY THIS FOR 5 BROS (FORMERLY BRANNAN'S ISLAND MARIN) · Chosen for 5 BROS (FORMERLY BRANNAN'S ISLAND MARIN) 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.
Get water quality alerts for 5 BROS (FORMERLY BRANNAN'S ISLAND MARIN)
We'll notify you when new PFAS data, EPA violations, or contamination alerts affect 5 BROS (FORMERLY BRANNAN'S ISLAND MARIN) (PWS CA3400206). One email, no spam, unsubscribe any time.