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Water system · PWSID IL0890850

SUGAR GROVE

SUGAR GROVE, IL · ~11,243 people served

Check your exact address → SUGAR GROVE overview
95
Excellent
PurityRadar safety score

PWSID

IL0890850

State

Illinois

City

SUGAR GROVE

Population served

11,243

Primary source

Groundwater

Score history

▼ 5 points — the score moved from 100 to 95 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 95

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).

PFHxS

Perfluorohexanesulfonic acid

8 ppt

limit 10 ppt

Near EPA limit

Lithium

10,100 ppt

limit —

No federal limit

Violations & enforcement

14

Violations on record

0

Unaddressed

7

Health-based

49

Enforcement actions

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

Monitoring & reporting · Uranium began Apr 2022 Resolved
Monitoring & reporting · Nitrite began Jan 2022 Resolved
Monitoring & reporting · Nitrate began Jan 2022 Resolved
Other · EPA contaminant 7000 began Jul 2019 Resolved
Other · EPA contaminant 7000 began Jul 2014 Resolved
Monitoring & reporting · Uranium began Jul 2004 Resolved
Monitoring & reporting · Gross alpha began Jul 2004 Resolved
Max contaminant level (MCL) · Uranium health-based began Oct 2003 Resolved
Max contaminant level (MCL) · Uranium health-based began Jul 2003 Resolved
Max contaminant level (MCL) · Uranium health-based began Apr 2003 Resolved
Max contaminant level (MCL) · Uranium health-based began Jan 2003 Resolved
Max contaminant level (MCL) · Uranium health-based began Oct 2002 Resolved

Recent enforcement actions

  • State action · SIF May 2025
  • State action · SIF May 2025
  • State action · SOX Feb 2025
  • State action · SOX Feb 2025
  • State action · SIA Jan 2025
  • State action · SIE Jan 2025
  • State action · SIE Jan 2025
  • State action · SIA Jan 2025

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

Arsenic

1 station · latest May 2022

1.26 · max 1.45 ug/L · 2

Manganese

1 station · latest May 2022

70.6 · max 81.3 ug/L · 2

Fluoride

1 station · latest May 2022

0.13 · max 0.13 mg/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 IL0890850 — 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.