Is Fort Defiance-Window Rock-St Michaels NTUA Water Safe to Drink in 2026?
Jurisdiction NN · PWSID NN0403000 · Ground water
Population served
12,869
Cities served
Fort Defiance, Window Rock, St. Michaels
State / jurisdiction
Jurisdiction NN (NN)
PWSID
NN0403000
F
TAP WATER GRADE
High risk
Model score 30/88 from violations, PFAS profile, and monitoring signals — not a laboratory test of your faucet.
248 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 248 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 Fort Defiance-Window Rock-St Michaels NTUA's monitoring and violation profile, here are vetted filtration options — same picks framework as our city reports.
TOP PICKS FOR FORT DEFIANCE-WINDOW ROCK-ST MICHAELS NTUA
⚠ EPA violations / contaminants in monitoring data
WHY THIS FOR FORT DEFIANCE-WINDOW ROCK-ST MICHAELS NTUA · Chosen for Fort Defiance-Window Rock-St Michaels NTUA 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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