Home/ Directory/ CO/ GRAND JUNCTION CITY OF

Water system · PWSID CO0139321

GRAND JUNCTION CITY OF

GRAND JUNCTION, CO · ~26,000 people served

Check your exact address → GRAND JUNCTION overview
100
Excellent
PurityRadar safety score

PWSID

CO0139321

State

Colorado

City

GRAND JUNCTION

Population served

26,000

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

6

Violations on record

0

Unaddressed

2

Health-based

15

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Mar 2018. Official EPA record →

Monitoring & reporting · EPA contaminant 3014 began Jan 2018 Resolved
Monitoring & reporting · EPA contaminant 0100 began Nov 2016 Resolved
Monitoring & reporting · EPA contaminant 3014 began Nov 2016 Resolved
Monitoring & reporting · EPA contaminant 3015 began Nov 2016 Resolved
Max contaminant level (MCL) · Total coliform health-based began Aug 1993 Resolved
Max contaminant level (MCL) · Total coliform health-based began Mar 1993 Resolved

Recent enforcement actions

  • State action · SOX Mar 2018
  • State action · SIE Mar 2018
  • State action · SIA Mar 2018
  • State action · SOX Feb 2017
  • State action · SIA Feb 2017
  • State action · SIE Feb 2017
  • State action · SOX May 2007
  • State action · SIF Jun 2003

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

1 station · latest Oct 2022

1.26 · max 2 ug/l · 4

Copper

1 station · latest Oct 2022

0.67 · max 0.72 ug/l · 3

Lead

1 station · latest Oct 2022

0.055 · max 0.078 ug/l · 3

Manganese

1 station · latest Oct 2022

6.9 · max 9 ug/l · 3

Fluoride

1 station · latest Oct 2022

0.23 · max 0.3 mg/l · 2

Uranium

1 station · latest Oct 2022

2.25 · max 3.3 ug/l · 2

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 CO0139321 — 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.