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Water system · PWSID IL0930250

YORKVILLE

YORKVILLE, IL · ~23,000 people served

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

PWSID

IL0930250

State

Illinois

City

YORKVILLE

Population served

23,000

Primary source

Groundwater

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

Lithium

27,300 ppt

limit —

No federal limit

Violations & enforcement

40

Violations on record

0

Unaddressed

32

Health-based

148

Enforcement actions

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

Monitoring & reporting · Uranium began Oct 2021 Resolved
Monitoring & reporting · Lead & Copper Rule began Dec 2020 Resolved
Other · EPA contaminant 7000 began Jul 2019 Resolved
Other · EPA contaminant 7000 began Jul 2016 Resolved
Max contaminant level (MCL) · Gross alpha health-based began Oct 2006 Resolved
Max contaminant level (MCL) · Uranium health-based began Oct 2006 Resolved
Max contaminant level (MCL) · Gross alpha health-based began Jul 2006 Resolved
Other · EPA contaminant 7000 began Jul 2006 Resolved
Max contaminant level (MCL) · Uranium health-based began Jul 2006 Resolved
Max contaminant level (MCL) · Uranium health-based began Apr 2006 Resolved
Max contaminant level (MCL) · Gross alpha health-based began Apr 2006 Resolved
Max contaminant level (MCL) · Gross alpha health-based began Jan 2006 Resolved

Recent enforcement actions

  • State action · SOX Aug 2023
  • State action · SIF May 2023
  • State action · SIE Feb 2023
  • State action · SIA Feb 2023
  • State action · SOX Feb 2022
  • State action · SIA Jan 2022
  • State action · SOX Jan 2021
  • State action · SIA Jan 2021

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

71.3 · max 240 ug/L · 46

Arsenic

2 stations · latest May 2022

1.04 · max 2.65 ug/L · 40

Copper

1 station · latest Mar 2022

0.7 · max 5.46 ug/L · 11

Lead

2 stations · latest May 2022

1.23 · max 2.56 ug/L · 11

Fluoride

1 station · latest May 2022

0.16 · max 0.16 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 IL0930250 — 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.