States › Illinois › Cumberland County

Cumberland County, IL Water Quality

Water quality data for 3 public water systems serving Cumberland County, Illinois — based on EPA SDWIS enforcement records, lead testing results, and health-based violation history.

📅 2026 Report 🔄 Data updated 2026 Q2 📍 3 water systems · 4 cities
✅
Excellent — All Systems Performing Well

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

A

Cumberland County Earns a A

Cumberland County: 4 communities across 3 water systems. 100.0% have no open violations.

  • Median lead where detected: none detected
  • 0 communities with a lead detection, 4 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
3
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
  • Greenup
    Not detected
    No federal limits exceeded on record
    B
  • Toledo
    Not detected
    1 health-based violation since 2015
    A
  • Jewett
    Not detected
    1 health-based violation since 2015
    A
  • Neoga
    Not detected
    2 significant inspection deficiencies
    C
⚠ Needs Attention
  • Neoga
    Not detected
    2 significant inspection deficiencies
    C
  • Toledo
    Not detected
    1 health-based violation since 2015
    A
  • Jewett
    Not detected
    1 health-based violation since 2015
    A
  • Greenup
    Not detected
    No federal limits exceeded on record
    B

All Cities in Cumberland County

Neoga Not detected C
Greenup Not detected B
Toledo Not detected A
Jewett Not detected A
Showing 4 cities
No active violations Active violations

About Cumberland County Drinking Water

Cumberland County is served by 3 water systems covering 4 communities. No community here has an open violation on record.

Lead was not detected in any community in Cumberland 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 Cumberland County tap water safe to drink?▼
No community in Cumberland County has an open violation on record. No community has PFAS above the federal limit on record.
What is the lead level in Cumberland County?▼
No community reported a lead detection.
How many water systems serve Cumberland County?▼
3 community water systems serve 4 communities here.
← Back to Illinois water quality overview