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Water system · PWSID IL0890800

SOUTH ELGIN

SOUTH ELGIN, IL · ~23,648 people served

Check your exact address → SOUTH ELGIN overview
85
Excellent
PurityRadar safety score

PWSID

IL0890800

State

Illinois

City

SOUTH ELGIN

Population served

23,648

Primary source

Groundwater

Score history

▼ 15 points — the score moved from 100 to 85 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 85

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 Mar 2025). Levels in parts per trillion (ppt).

PFOA

Perfluorooctanoic acid

5.1 ppt

limit 4 ppt

Above EPA limit · 1.3×

Lithium

11,500 ppt

limit —

No federal limit

PFBS

9.7 ppt

limit —

No federal limit

PFPeA

7.6 ppt

limit —

No federal limit

PFBA

5.6 ppt

limit —

No federal limit

PFHxA

5.1 ppt

limit —

No federal limit

Violations & enforcement

13

Violations on record

2

Unaddressed

5

Health-based

36

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Nov 2025. Official EPA record →

Other · EPA contaminant 7500 began Nov 2025 Unaddressed
Treatment technique · Lead & Copper Rule health-based began Jul 2025 Unaddressed
Other · EPA contaminant 7500 began Jul 2024 Resolved
Other · EPA contaminant 7000 began Jul 2024 Resolved
Monitoring & reporting · Lead & Copper Rule began Jul 2023 Resolved
Monitoring & reporting · Lead & Copper Rule began Sep 2016 Resolved
Monitoring & reporting · Total coliform began Nov 2012 Resolved
Monitoring & reporting · EPA contaminant 0999 began Oct 2012 Resolved
Treatment technique · Lead & Copper Rule health-based began Jul 2000 Resolved
Monitoring & reporting · Lead & Copper Rule began Jan 1999 Resolved
Max contaminant level (MCL) · Barium health-based began Jan 1999 Resolved
Max contaminant level (MCL) · Barium health-based began Oct 1998 Resolved

Recent enforcement actions

  • State action · SIA Nov 2025
  • State action · SIA Oct 2025
  • State action · SIE Oct 2025
  • State action · SOX Jun 2025
  • State action · SIA Mar 2025
  • State action · SIF Sep 2024
  • State action · SOX Sep 2024
  • State action · SIA Aug 2024

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

1 station · latest Oct 2022

21.1 · max 90.2 ug/L · 42

Arsenic

1 station · latest May 2022

0.835 · max 2.92 ug/L · 32

Copper

1 station · latest Feb 2022

1 · max 2.23 ug/L · 16

Lead

1 station · latest Apr 2022

0.89 · max 1.4 ug/L · 6

Fluoride

1 station · latest May 2021

0.04 · max 0.04 mg/l · 1

Uranium

1 station · latest May 2021

0.312 · max 0.312 ug/l · 1

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 IL0890800 — 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.