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Water system · PWSID CO0136175

CHICOSA WATER USERS ASSOCIATION

TRINIDAD, CO · ~40 people served

Check your exact address → TRINIDAD overview
100
Excellent
PurityRadar safety score

PWSID

CO0136175

State

Colorado

City

TRINIDAD

Population served

40

Primary source

SWP

Score history

No change since tracking began Jun 18, 2026.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 100

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

13

Violations on record

1

Unaddressed

1

Health-based

35

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jan 2026. Official EPA record →

Monitoring & reporting · Lead & Copper Rule began Jan 2026 Unaddressed
Monitoring & reporting · Lead & Copper Rule began Oct 2021 Resolved
Other · EPA contaminant 7000 began Jul 2021 Resolved
Monitoring & reporting · Lead & Copper Rule began Jan 2021 Resolved
Monitoring & reporting · Lead & Copper Rule began Apr 2020 Resolved
Monitoring & reporting · Lead & Copper Rule began Apr 2019 Resolved
Monitoring & reporting · Lead & Copper Rule began Jul 2018 Resolved
Other · EPA contaminant 7500 began Jun 2018 Resolved
Treatment technique · EPA contaminant 0400 health-based began Apr 2018 Resolved
Monitoring & reporting · EPA contaminant 0200 began Mar 2018 Resolved
Monitoring · Lead & Copper Rule began Mar 2018 Resolved
Monitoring · Lead & Copper Rule began Feb 2018 Resolved

Recent enforcement actions

  • State action · SIE Jan 2026
  • State action · SIA Jan 2026
  • State action · SOX Aug 2022
  • State action · SOX Jun 2022
  • State action · SOX Oct 2021
  • State action · SIE Oct 2021
  • State action · SIA Oct 2021
  • State action · SIA Aug 2021

This profile is built from EPA public records for system CO0136175 — 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.