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Water system · PWSID IL2010350

ROCKTON

ROCKTON, IL · ~7,685 people served

Check your exact address → ROCKTON overview
87
Excellent
PurityRadar safety score

PWSID

IL2010350

State

Illinois

City

ROCKTON

Population served

7,685

Primary source

Groundwater

Score history

▼ 13 points — the score moved from 100 to 87 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 87

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 Dec 2024). Levels in parts per trillion (ppt).

PFHxS

Perfluorohexanesulfonic acid

12 ppt

limit 10 ppt

Above EPA limit · 1.2×

Violations & enforcement

34

Violations on record

0

Unaddressed

27

Health-based

112

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement May 2023. Official EPA record →

Treatment technique · Lead & Copper Rule health-based began Apr 2023 Resolved
Max contaminant level (MCL) · Uranium health-based began Oct 2013 Resolved
Max contaminant level (MCL) · Uranium health-based began Jul 2013 Resolved
Max contaminant level (MCL) · Uranium health-based began Apr 2013 Resolved
Max contaminant level (MCL) · Uranium health-based began Jan 2013 Resolved
Max contaminant level (MCL) · Uranium health-based began Oct 2012 Resolved
Max contaminant level (MCL) · Uranium health-based began Jul 2012 Resolved
Max contaminant level (MCL) · Uranium health-based began Apr 2012 Resolved
Max contaminant level (MCL) · Uranium health-based began Jan 2012 Resolved
Max contaminant level (MCL) · Uranium health-based began Oct 2011 Resolved
Max contaminant level (MCL) · Uranium health-based began Jul 2011 Resolved
Max contaminant level (MCL) · Uranium health-based began Apr 2011 Resolved

Recent enforcement actions

  • State action · SOX May 2023
  • State action · SIA Apr 2023
  • State action · SIE Apr 2023
  • State action · SIA Jan 2014
  • State action · SOX Nov 2013
  • State action · SIF Nov 2013
  • State action · SIE Oct 2013
  • State action · SIA Oct 2013

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

40.4 · max 173 ug/L · 43

Arsenic

1 station · latest May 2022

0.86 · max 2.12 ug/L · 38

Fluoride

1 station · latest Sep 2022

0.11 · max 0.14 mg/L · 21

Lead

1 station · latest May 2022

1.09 · max 3.11 ug/L · 16

Copper

1 station · latest Oct 2021

0.77 · max 0.96 ug/L · 10

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 IL2010350 — 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.