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Water system · PWSID CO0151750

ST CHARLES MESA WD

PUEBLO, CO · ~9,690 people served

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

PWSID

CO0151750

State

Colorado

City

PUEBLO

Population served

9,690

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 Aug 2025). Levels in parts per trillion (ppt).

Lithium

14,000 ppt

limit —

No federal limit

Violations & enforcement

64

Violations on record

0

Unaddressed

1

Health-based

9

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Dec 2009. Official EPA record →

Treatment technique · Bromate health-based began Apr 2009 Resolved
Monitoring & reporting · EPA contaminant 0600 began Oct 2007 Resolved
Monitoring & reporting · EPA contaminant 2015 began Jan 2005 Resolved
Monitoring & reporting · EPA contaminant 2031 began Jan 2005 Resolved
Monitoring & reporting · EPA contaminant 2032 began Jan 2005 Resolved
Monitoring & reporting · EPA contaminant 2033 began Jan 2005 Resolved
Monitoring & reporting · EPA contaminant 2036 began Jan 2005 Resolved
Monitoring & reporting · EPA contaminant 2035 began Jan 2005 Resolved
Monitoring & reporting · EPA contaminant 2037 began Jan 2005 Resolved
Monitoring & reporting · EPA contaminant 2039 began Jan 2005 Resolved
Monitoring & reporting · EPA contaminant 2040 began Jan 2005 Resolved
Monitoring & reporting · EPA contaminant 2020 began Jan 2005 Resolved

Recent enforcement actions

  • State action · SOX Dec 2009
  • State action · SIF Sep 2009
  • State action · SOX Aug 2009
  • State action · SIA Aug 2009
  • State action · SIE Aug 2009
  • State action · SOX Jun 2008
  • State action · SIA May 2008
  • State action · SIA Feb 2008

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

Arsenic

5 stations · latest Mar 2026

1.22 · max 2.96 ug/L · 35

Manganese

5 stations · latest Mar 2026

18 · max 123 ug/L · 15

Fluoride

2 stations · latest Mar 2026

0.71 · max 0.9 mg/L · 9

Lead

1 station · latest Mar 2026

1.1 · max 3.06 ug/L · 9

Copper

1 station · latest Jun 2025

1 · max 1.31 ug/L · 7

Atrazine

1 station · latest Jun 2024

9.7 · max 9.7 ng/L · 1

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 CO0151750 — 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.