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Water system · PWSID ID6120001

ARCO CITY OF

ARCO, ID · ~1,080 people served

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

PWSID

ID6120001

State

Idaho

City

ARCO

Population served

1,080

Primary source

Groundwater

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

15

Enforcement actions

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

Max contaminant level (MCL) · Lead & Copper Rule health-based began Aug 2022 Resolved
Monitoring & reporting · Lead & Copper Rule began Oct 2016 Resolved
Monitoring & reporting · EPA contaminant 2039 began Apr 2008 Resolved
Monitoring & reporting · Nitrate began Jan 1996 Resolved
Monitoring & reporting · Nitrate began Jan 1995 Resolved
Monitoring & reporting · Total coliform began Apr 1994 Resolved
Monitoring & reporting · Lead & Copper Rule began Jan 1994 Resolved
Monitoring & reporting · Total coliform began Sep 1993 Resolved
Monitoring & reporting · Selenium began Jan 1993 Resolved
Monitoring & reporting · Antimony began Jan 1993 Resolved
Monitoring & reporting · Beryllium began Jan 1993 Resolved
Monitoring & reporting · EPA contaminant 1075 began Jan 1993 Resolved

Recent enforcement actions

  • State action · SOX Feb 2023
  • State action · SIA Aug 2022
  • State action · SFH Aug 2022
  • State action · SIE Aug 2022
  • State action · SOX Dec 2018
  • State action · SIE Feb 2017
  • State action · SIA Feb 2017
  • State action · SOX Feb 2009

This profile is built from EPA public records for system ID6120001 — 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.