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Water system · PWSID IL0894070

AURORA

AURORA, IL · ~183,000 people served

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

PWSID

IL0894070

State

Illinois

City

AURORA

Population served

183,000

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

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

Lithium

18,600 ppt

limit —

No federal limit

PFBA

5.5 ppt

limit —

No federal limit

PFBS

3.7 ppt

limit —

No federal limit

PFHxA

3.5 ppt

limit —

No federal limit

PFPeA

3.4 ppt

limit —

No federal limit

Violations & enforcement

5

Violations on record

0

Unaddressed

5

Health-based

49

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jun 2004. Official EPA record →

Max contaminant level (MCL) · Total coliform health-based began Feb 2004 Resolved
Treatment technique · Lead & Copper Rule health-based began Feb 1993 Resolved
Max contaminant level (MCL) · Uranium health-based began Jan 1992 Resolved
Max contaminant level (MCL) · Uranium health-based began Jan 1988 Resolved
Max contaminant level (MCL) · Uranium health-based began Jan 1984 Resolved

Recent enforcement actions

  • State action · SFK Jun 2004
  • State action · SOX May 2004
  • State action · SIF Mar 2004
  • State action · SFJ Feb 2004
  • State action · SIE Feb 2004
  • State action · SIA Feb 2004
  • State action · SOX Dec 1993
  • State action · SOX Dec 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

Manganese

2 stations · latest Oct 2022

30.1 · max 135 ug/L · 30

Arsenic

2 stations · latest Jun 2022

1.29 · max 2.8 ug/L · 24

Copper

1 station · latest Aug 2022

1.66 · max 8.82 ug/L · 14

Fluoride

2 stations · latest Oct 2022

0.16 · max 0.21 mg/L · 14

Lead

2 stations · latest May 2022

1.3 · max 3.16 ug/L · 10

Atrazine

1 station · latest Jun 2022

0.115 · max 0.2 ug/L · 4

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 IL0894070 — 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.