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Water system · PWSID CA3310020

INDIO WATER AUTHORITY

100
Excellent
PurityRadar safety score

PWSID

CA3310020

State

California

City

INDIO

Population served

84,757

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

4

Violations on record

0

Unaddressed

1

Health-based

10

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jul 2013. Official EPA record →

Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2013 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2013 Resolved
Monitoring & reporting · Total coliform began Aug 2003 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jan 1993 Resolved

Recent enforcement actions

  • State action · SFJ Jul 2013
  • State action · SOX Apr 2013
  • State action · SOX May 2004
  • State action · SFL Apr 2004
  • State action · SFL Oct 2003
  • State action · SOX Sep 2003
  • EPA/federal action · EOX Mar 2000
  • EPA/federal action · EFJ May 1993

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

Nitrate

11 stations · latest Sep 2025

7.2 · max 19 mg/L · 111

Fluoride

14 stations · latest Mar 2025

2.5 · max 320 mg/L · 52

Lead

5 stations · latest Mar 2025

0.02 · max 0.0387 mg/L · 8

Copper

6 stations · latest Feb 2024

0.01 · max 0.0559 mg/L · 7

Arsenic

5 stations · latest Sep 2023

0.02 · max 0.0418 mg/L · 6

Manganese

2 stations · latest Mar 2024

0.0144 · max 0.015 mg/L · 3

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 CA3310020 — 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.