Richton Park

PWSID: IL0312550

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3 active violations (non-health-based)
This system has unresolved violations related to monitoring, reporting, or procedural requirements, but none involve contaminant levels exceeding EPA health limits.

This system has more violations on record than 98% of water systems in Illinois.

Violation trend: 16.4 per year over the last 5 years, down from 21.4 per year in the previous 5.

System Details

Population Served12,504
Service Connections3,575
Water SourceGroundwater
System TypeCommunity Water System
OwnerLocal Government
StatusActive
CityRichton Park
EPA ZIP on File60471

Areas Served

  • Richton Park, Cook County

Lead & Copper Testing

ContaminantLevelEPA Action LevelStatus
Lead (90th percentile)0.0211 mg/L0.015 mg/LExceeds Action Level
Lead (90th percentile)0.0190 mg/L0.015 mg/LExceeds Action Level
Lead (90th percentile)0.0129 mg/L0.015 mg/LBelow Action Level
Lead (90th percentile)0.0120 mg/L0.015 mg/LBelow Action Level
Lead (90th percentile)0.0120 mg/L0.015 mg/LBelow Action Level
Lead (90th percentile)0.0114 mg/L0.015 mg/LBelow Action Level
Lead (90th percentile)0.0098 mg/L0.015 mg/LBelow Action Level
Lead (90th percentile)0.0098 mg/L0.015 mg/LBelow Action Level
Lead (90th percentile)0.0094 mg/L0.015 mg/LBelow Action Level
Lead (90th percentile)0.0077 mg/L0.015 mg/LBelow Action Level
Lead (90th percentile)0.0076 mg/L0.015 mg/LBelow Action Level
Lead (90th percentile)0.0073 mg/L0.015 mg/LBelow Action Level
Lead (90th percentile)0.0052 mg/L0.015 mg/LBelow Action Level

3 Active Violations

ContaminantViolationDateHealth-BasedStatus
7000Other2025-07-01Open
7000Other2024-07-01Open
7500Other2019-12-13Open

Violation History (193 total)

ContaminantViolationDateHealth-BasedStatus
1040MR2025-07-01 MajorAcknowledged
1040MR2025-07-01 MajorAcknowledged
1040MR2025-07-01 MajorAcknowledged
2950MR2025-01-01 MajorAcknowledged
2456MR2025-01-01 MajorAcknowledged
7500Other2024-02-08Returned to Compliance
7500Other2024-02-08Returned to Compliance
7500Other2024-02-08Returned to Compliance
7500Other2024-02-08Returned to Compliance
7500Other2024-02-08Returned to Compliance
7500Other2024-02-08Returned to Compliance
7500Other2024-02-08Returned to Compliance
7500Other2024-02-08Returned to Compliance
7500Other2024-02-08Returned to Compliance
7500Other2024-02-08Returned to Compliance
7500Other2024-02-08Returned to Compliance
7500Other2024-02-08Returned to Compliance
7500Other2024-02-08Returned to Compliance
7500Other2024-02-08Returned to Compliance
7500Other2024-02-08Returned to Compliance
7500Other2024-02-08Returned to Compliance
7500Other2024-02-08Returned to Compliance
7500Other2024-02-08Returned to Compliance
7500Other2024-02-08Returned to Compliance
7500Other2024-02-08Returned to Compliance
7500Other2024-02-08Returned to Compliance
7500Other2024-02-08Returned to Compliance
7500Other2024-02-08Returned to Compliance
7500Other2024-02-08Returned to Compliance
7500Other2024-02-08Returned to Compliance
7500Other2024-02-08Returned to Compliance
7500Other2024-02-08Returned to Compliance
7500Other2024-02-08Returned to Compliance
7500Other2024-02-08Returned to Compliance
7500Other2024-02-08Returned to Compliance
7500Other2024-02-08Returned to Compliance
7500Other2024-02-08Returned to Compliance
7500Other2024-02-08Returned to Compliance
7500Other2024-02-08Returned to Compliance
7500Other2024-02-08Returned to Compliance
7500Other2024-02-08Returned to Compliance
7500Other2024-02-08Returned to Compliance
7500Other2024-02-08Returned to Compliance
7500Other2024-02-08Returned to Compliance
7500Other2024-02-08Returned to Compliance
7500Other2024-02-08Returned to Compliance
7500Other2024-02-08Returned to Compliance
7500Other2024-02-08Returned to Compliance
7500Other2024-02-08Returned to Compliance
7500Other2024-02-08Returned to Compliance

Showing 50 of 190 historical violations.

Understanding This Water System's Record

Richton Park is a community water system water system that draws from groundwater sources and serves a population of 12,504 in Richton Park, Illinois. This page shows its complete compliance history as reported to the EPA's Safe Drinking Water Information System (SDWIS), the federal database that tracks every public water system in the United States.

What Do These Violations Mean?

Health-based violations mean the system exceeded an EPA maximum contaminant level (MCL) or failed to provide required treatment. These indicate potential health risks from contaminants like lead, arsenic, bacteria, nitrates, or disinfection byproducts. Non-health-based violations involve monitoring, reporting, or procedural requirements — the system missed a testing deadline or failed to notify customers, but contaminant levels were not necessarily unsafe.

What Should You Do?

Your water utility is required to publish an annual Consumer Confidence Report (CCR) that details test results and any violations. If your system has active health-based violations, consider a certified water filter rated for the specific contaminants involved. The contaminant guides on this site explain health risks and filter options for common pollutants. For the most current results, contact your water utility directly — EPA data can lag weeks or months behind real-time testing.