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Water system · PWSID IL2015500

NORTH PARK PWD

MACHESNEY PARK, IL · ~35,580 people served

Check your exact address → MACHESNEY PARK overview
75
Good
PurityRadar safety score

PWSID

IL2015500

State

Illinois

City

MACHESNEY PARK

Population served

35,580

Primary source

Groundwater

Score history

▼ 25 points — the score moved from 100 to 75 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 75

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

PFHxS

Perfluorohexanesulfonic acid

14 ppt

limit 10 ppt

Above EPA limit · 1.4×

PFOA

Perfluorooctanoic acid

5.3 ppt

limit 4 ppt

Above EPA limit · 1.3×

PFOS

Perfluorooctanesulfonic acid

4.1 ppt

limit 4 ppt

Above EPA limit · 1.0×

Lithium

9,330 ppt

limit —

No federal limit

PFBA

5.5 ppt

limit —

No federal limit

PFBS

4.5 ppt

limit —

No federal limit

PFHxA

3.6 ppt

limit —

No federal limit

PFPeA

3.1 ppt

limit —

No federal limit

Violations & enforcement

4

Violations on record

0

Unaddressed

2

Health-based

26

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Dec 2007. Official EPA record →

Monitoring & reporting · EPA contaminant 0999 began Oct 2007 Resolved
Max contaminant level (MCL) · EPA contaminant 2987 health-based began Apr 1999 Resolved
Max contaminant level (MCL) · EPA contaminant 2987 health-based began Jan 1999 Resolved
Monitoring & reporting · Nitrate began Oct 1993 Resolved

Recent enforcement actions

  • State action · SOX Dec 2007
  • State action · SIA Nov 2007
  • EPA/federal action · EOX Oct 2006
  • State action · SIA Jul 2005
  • State action · SIE Jul 2005
  • State action · SFR Jun 2005
  • EPA/federal action · EF/ Jun 2005
  • State action · SOX Jun 2002

This profile is built from EPA public records for system IL2015500 — 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.