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Water system · PWSID CO0162418

JOHNSTOWN TOWN OF

JOHNSTOWN, CO · ~27,295 people served

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

PWSID

CO0162418

State

Colorado

City

JOHNSTOWN

Population served

27,295

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

93

Violations on record

0

Unaddressed

6

Health-based

148

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Aug 2023. Official EPA record →

Other · EPA contaminant 7000 began Jul 2023 Resolved
Monitoring & reporting · EPA contaminant 0200 began Aug 2022 Resolved
Treatment technique · EPA contaminant 0200 health-based began Jul 2021 Resolved
Monitoring & reporting · EPA contaminant 0200 began Jun 2021 Resolved
Monitoring & reporting · EPA contaminant 0300 began Jun 2021 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Apr 2021 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Apr 2021 Resolved
Monitoring & reporting · EPA contaminant 0800 began Oct 2020 Resolved
Treatment technique · Bromate health-based began Jul 2020 Resolved
Monitoring & reporting · EPA contaminant 0300 began May 2020 Resolved
Monitoring & reporting · EPA contaminant 0200 began May 2020 Resolved
Other · EPA contaminant 7500 began Jan 2019 Resolved

Recent enforcement actions

  • State action · SOX Aug 2023
  • State action · SIE Aug 2023
  • State action · SIA Aug 2023
  • State action · SOX Sep 2022
  • State action · SIA Sep 2022
  • State action · SIE Sep 2022
  • State action · SOX Sep 2021
  • State action · SOX Aug 2021

This profile is built from EPA public records for system CO0162418 — 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.