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Water system · PWSID ID3140013

CALDWELL CITY OF

CALDWELL, ID · ~74,000 people served

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

PWSID

ID3140013

State

Idaho

City

CALDWELL

Population served

74,000

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

Latest detections from EPA’s UCMR5 monitoring (through Feb 2025). Levels in parts per trillion (ppt).

Lithium

13,000 ppt

limit —

No federal limit

Violations & enforcement

207

Violations on record

1

Unaddressed

0

Health-based

26

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jul 2022. Official EPA record →

Monitoring & reporting · Lead & Copper Rule began Sep 2018 Unaddressed
Monitoring & reporting · Haloacetic acids (HAA5) began Oct 2019 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Oct 2019 Resolved
Monitoring · Lead & Copper Rule began May 2019 Resolved
Monitoring & reporting · EPA contaminant 0999 began Apr 2019 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Oct 2017 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Oct 2017 Resolved
Monitoring & reporting · EPA contaminant 2031 began Jan 2017 Resolved
Monitoring & reporting · EPA contaminant 2020 began Jan 2017 Resolved
Monitoring & reporting · EPA contaminant 2032 began Jan 2017 Resolved
Monitoring & reporting · EPA contaminant 2015 began Jan 2017 Resolved
Monitoring & reporting · EPA contaminant 2005 began Jan 2017 Resolved

Recent enforcement actions

  • State action · SOX Jul 2022
  • State action · SOX Aug 2021
  • State action · SIE Nov 2020
  • State action · SIA Nov 2020
  • State action · SIE Feb 2020
  • State action · SIA Feb 2020
  • State action · SOX Sep 2019
  • State action · SIE Aug 2019

This profile is built from EPA public records for system ID3140013 — 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.