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Water system · PWSID IL1350300

HILLSBORO

HILLSBORO, IL · ~4,402 people served

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

PWSID

IL1350300

State

Illinois

City

HILLSBORO

Population served

4,402

Primary source

Surface water

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

No PFAS detections are on record for this system from EPA’s UCMR5 monitoring (2023–25). Absence of a detection isn’t a guarantee — not every system was sampled, and this dataset doesn’t cover other contaminants.

Violations & enforcement

19

Violations on record

1

Unaddressed

12

Health-based

84

Enforcement actions

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

Monitoring & reporting · Lead & Copper Rule began Jul 2025 Unaddressed
Monitoring & reporting · Total trihalomethanes (TTHM) began Jul 2024 Resolved
Monitoring & reporting · EPA contaminant 2020 began Apr 2023 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jan 2020 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Oct 2019 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jul 2019 Resolved
Monitoring & reporting · Nitrite began Jan 2017 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jan 2010 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Oct 2009 Resolved
Treatment technique · EPA contaminant 0300 health-based began Jul 2009 Resolved
Treatment technique · EPA contaminant 0300 health-based began Jun 2009 Resolved
Treatment technique · EPA contaminant 0300 health-based began Jun 2009 Resolved

Recent enforcement actions

  • State action · SIA Jul 2025
  • State action · SIE Jul 2025
  • State action · SIF Jun 2025
  • State action · SOX Dec 2024
  • State action · SIA Oct 2024
  • State action · SIE Oct 2024
  • State action · SOX Jun 2024
  • State action · SIF Jun 2024

This profile is built from EPA public records for system IL1350300 — 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.