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Water system · PWSID CO0135291

FT COLLINS CITY OF

FORT COLLINS, CO · ~179,901 people served

Check your exact address → FORT COLLINS overview
100
Excellent
PurityRadar safety score

PWSID

CO0135291

State

Colorado

City

FORT COLLINS

Population served

179,901

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

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

18

Violations on record

0

Unaddressed

1

Health-based

28

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Aug 2024. Official EPA record →

Monitoring & reporting · EPA contaminant 0200 began Jul 2024 Resolved
Monitoring & reporting · EPA contaminant 0300 began Jul 2024 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Apr 2021 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Apr 2021 Resolved
Treatment technique · EPA contaminant 0300 health-based began Dec 2017 Resolved
Monitoring & reporting · EPA contaminant 0300 began Dec 2017 Resolved
Monitoring & reporting · EPA contaminant 0200 began May 2017 Resolved
Monitoring & reporting · EPA contaminant 0999 began Apr 2017 Resolved
Monitoring & reporting · EPA contaminant 0200 began Apr 2017 Resolved
Monitoring & reporting · EPA contaminant 0200 began Mar 2017 Resolved
Monitoring & reporting · EPA contaminant 0999 began Jan 2017 Resolved
Monitoring & reporting · Lead & Copper Rule began Jul 2010 Resolved

Recent enforcement actions

  • State action · SIA Aug 2024
  • State action · SIE Aug 2024
  • State action · SOX Aug 2024
  • State action · SOX Sep 2021
  • State action · SIA Jul 2021
  • State action · SIE Jul 2021
  • State action · SOX Feb 2018
  • State action · SIE Jan 2018

Area water-quality monitoring

Environmental monitoring (rivers, wells, intakes) recorded in this system’s service area in the EPA/USGS Water Quality Portal since 2018 — source/ambient water, not finished tap water. Context for the watershed, not a reading from your tap.

ContaminantMedian · max · samples

Nitrate

3 stations · latest Dec 2024

2.73 · max 12.6 mg/L · 175

Manganese

3 stations · latest Mar 2025

23.3 · max 929 ug/L · 151

Copper

3 stations · latest Mar 2025

2.35 · max 27.5 ug/L · 86

Arsenic

3 stations · latest Jan 2025

1 · max 3 ug/L · 43

Lead

3 stations · latest Nov 2024

2 · max 16 ug/L · 34

Source: Water Quality Portal (EPA/USGS/state agencies). Values are as-reported and aren’t health thresholds.

This profile is built from EPA public records for system CO0135291 — 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.