MESA WSD

MESA, CO · ~330 people served

Check your exact address → MESA overview

100

Excellent

PurityRadar safety score

PWSID

CO0139505

State

Colorado

City

MESA

Population served

330

Primary source

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

Violations on record

Unaddressed

Health-based

Enforcement actions

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

Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2023 Resolved

Monitoring & reporting · EPA contaminant 0800 began Jul 2017 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2016 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2016 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2015 Resolved

Monitoring & reporting · Lead & Copper Rule began Oct 2006 Resolved

Monitoring & reporting · EPA contaminant 0200 began Sep 2006 Resolved

Monitoring & reporting · Lead & Copper Rule began Oct 2005 Resolved

Monitoring & reporting · EPA contaminant 0200 began Nov 2003 Resolved

Monitoring & reporting · Lead & Copper Rule began Jan 2003 Resolved

Monitoring & reporting · EPA contaminant 0200 began Oct 2002 Resolved

Monitoring & reporting · Lead & Copper Rule began Jan 2002 Resolved

Recent enforcement actions

State action · SOX Aug 2024
State action · SIA Oct 2023
State action · SIE Oct 2023
State action · SOX Sep 2017
State action · SOX Jul 2017
State action · SIA Jul 2017
State action · SIE Jul 2017
State action · SIA Nov 2016

This profile is built from EPA public records for system CO0139505 — 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.