PWSID
CO0111100
State
Colorado
City
ANTONITO
Population served
981
Primary source
GU
Score history
No change since tracking began Jun 18, 2026.
2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.
PFAS & contaminant readings
No PFAS detections are on record for this system from EPA’s UCMR5 monitoring (2023–25). Absence of a detection isn’t a guarantee — not every system was sampled, and this dataset doesn’t cover other contaminants.
Violations & enforcement
182
Violations on record
0
Unaddressed
13
Health-based
245
Enforcement actions
From EPA ECHO (SDWIS), most recent enforcement Dec 2025. Official EPA record →
Recent enforcement actions
- State action · SOX Dec 2025
- State action · SIA Dec 2025
- State action · SIA Dec 2025
- State action · SIE Dec 2025
- State action · SIA Dec 2025
- State action · SIE Dec 2025
- State action · SIE Dec 2025
- State action · SIA Aug 2025
This profile is built from EPA public records for system CO0111100 — SDWIS violations and UCMR5 PFAS sampling. The score is system-level and can’t account for your home’s plumbing (older pipes can add lead at the tap). For health decisions, check your exact address, read the utility’s Consumer Confidence Report, and confirm with your provider.