States › Illinois › Richland County

Richland County, IL Water Quality

Water quality data for 2 public water systems serving Richland County, Illinois — based on EPA SDWIS enforcement records, lead testing results, and health-based violation history.

📅 2026 Report 🔄 Data updated 2026 Q2 📍 2 water systems · 6 cities
✅
Excellent — All Systems Performing Well

Water quality across the county is outstanding with minimal violations and very low lead levels.

A

Richland County Earns a A

Richland County: 6 communities across 2 water systems. 100.0% have no open violations.

  • Median lead where detected: none detected
  • 0 communities with a lead detection, 6 reporting none detected
  • 0 communities with PFAS above the federal limit
  • 1 with significant inspection deficiencies
  • 100.0% of communities have no open violations
—
Median Lead Level
County-wide, 90th percentile
2
Water Systems
Active CWS & NTNCWS
100%
Violation-Free
No active violations on record
How we grade counties: MyWaterIQ uses EPA SDWIS enforcement data — actual MCL violations and lead test results — not the aspirational MCLG targets used by some sites. A grade reflects real compliance history, not theoretical risk. Learn more →

Cities by Water Quality

⭐ Best Performing
  • Olney
    Not detected
    1 health-based violation since 2015
    A
  • Noble
    Not detected
    1 health-based violation since 2015
    A
  • Parkersburg
    Not detected
    1 health-based violation since 2015
    A
  • Calhoun
    Not detected
    1 health-based violation since 2015
    A
  • Dundas
    Not detected
    1 health-based violation since 2015
    A
⚠ Needs Attention
  • Claremont
    Not detected
    1 significant inspection deficiency
    B
  • Olney
    Not detected
    1 health-based violation since 2015
    A
  • Noble
    Not detected
    1 health-based violation since 2015
    A
  • Parkersburg
    Not detected
    1 health-based violation since 2015
    A
  • Calhoun
    Not detected
    1 health-based violation since 2015
    A

All Cities in Richland County

Olney Not detected A
Noble Not detected A
Claremont Not detected B
Parkersburg Not detected A
Calhoun Not detected A
Dundas Not detected A
Showing 6 cities
No active violations Active violations

About Richland County Drinking Water

Richland County is served by 2 water systems covering 6 communities. No community here has an open violation on record.

Lead was not detected in any community in Richland County that reported a result.

No community here has PFAS above the federal limit on record. State inspectors recorded significant deficiencies at 1 of them.

Frequently Asked Questions

Is Richland County tap water safe to drink?▼
No community in Richland County has an open violation on record. No community has PFAS above the federal limit on record.
What is the lead level in Richland County?▼
No community reported a lead detection.
How many water systems serve Richland County?▼
2 community water systems serve 6 communities here.
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