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Water system · PWSID CO0101170

WESTMINSTER CITY OF

WESTMINSTER, CO · ~202,078 people served

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

PWSID

CO0101170

State

Colorado

City

WESTMINSTER

Population served

202,078

Primary source

Surface water

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

Latest detections from EPA’s UCMR5 monitoring (through Dec 2024). Levels in parts per trillion (ppt).

Lithium

18,900 ppt

limit —

No federal limit

Violations & enforcement

10

Violations on record

0

Unaddressed

0

Health-based

10

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jun 2025. Official EPA record →

Monitoring & reporting · EPA contaminant 0200 began Jan 2025 Resolved
Monitoring & reporting · EPA contaminant 0200 began Dec 2024 Resolved
Monitoring & reporting · EPA contaminant 0200 began Jan 2022 Resolved
Monitoring & reporting · EPA contaminant 2981 began Jan 1988 Resolved
Monitoring & reporting · EPA contaminant 2984 began Jan 1988 Resolved
Monitoring & reporting · EPA contaminant 2990 began Jan 1988 Resolved
Monitoring & reporting · EPA contaminant 2969 began Jan 1988 Resolved
Monitoring & reporting · EPA contaminant 2982 began Jan 1988 Resolved
Monitoring & reporting · EPA contaminant 2980 began Jan 1988 Resolved
Monitoring & reporting · EPA contaminant 2977 began Jan 1988 Resolved

Recent enforcement actions

  • State action · SIF Jun 2025
  • State action · SOX Mar 2025
  • State action · SIE Feb 2025
  • State action · SIA Feb 2025
  • State action · SIE Jan 2025
  • State action · SIA Jan 2025
  • State action · SOX Mar 2022
  • State action · SIE Feb 2022

This profile is built from EPA public records for system CO0101170 — 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.