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Jackson County, IL Water Quality

Water quality data for 11 public water systems serving Jackson County, Illinois — based on EPA SDWIS enforcement records, lead testing results, and health-based violation history.

📅 2026 Report 🔄 Data updated 2026 Q2 📍 11 water systems · 12 cities
✅
Generally Safe — Most Systems Performing Well

The majority of water systems have no active violations and lead levels well below the federal action level.

B

Jackson County Earns a B

Jackson County: 12 communities across 11 water systems. 100.0% have no open violations.

  • Median lead where detected: 5.45 ppb
  • 2 communities with a lead detection, 10 reporting none detected
  • 0 communities with PFAS above the federal limit
  • 11 with significant inspection deficiencies
  • 100.0% of communities have no open violations
5.45 ppb
Median Lead Level
County-wide, 90th percentile
11
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
  • De Soto
    1.40 ppb
    2 significant inspection deficiencies
    B
  • Campbell Hill
    Not detected
    1 significant inspection deficiency
    B
  • Ava
    Not detected
    1 significant inspection deficiency
    B
  • Vergennes
    Not detected
    2 significant inspection deficiencies
    B
  • Murphysboro
    Not detected
    1 significant inspection deficiency
    B
⚠ Needs Attention
  • Makanda
    Not detected
    3 significant inspection deficiencies
    C
  • Elkville
    Not detected
    4 significant inspection deficiencies
    C
  • Carbondale
    9.50 ppb
    4 health-based violations since 2015
    B
  • Grand Tower
    Not detected
    Copper above the 1,300 ppb action level
    B
  • Dowell
    Not detected
    3 significant inspection deficiencies
    B
County Lead Level — Median 5.45 ppb
Based on most recent 90th percentile lead tests across all reporting systems
0 ppb5 ppb10 ppb15 ppb
County median: 5.45 ppb — 36.3% of the federal action level
Systems by Lead Level
Under 5 ppb
1
5 – 10 ppb
1
No Data
10

All Cities in Jackson County

Carbondale 9.50 ppb B
Murphysboro Not detected B
De Soto 1.40 ppb B
Harrison Not detected B
Elkville Not detected C
Grand Tower Not detected B
Campbell Hill Not detected B
Ava Not detected B
Dowell Not detected B
Vergennes Not detected B
Gorham Not detected B
Makanda Not detected C
Showing 12 cities
No active violations Active violations

About Jackson County Drinking Water

Jackson County is served by 11 water systems covering 12 communities. No community here has an open violation on record.

Of the communities reporting lead results, 2 recorded a detection, with a median of 5.45 ppb — 36% of the federal action level. 10 reported none detected, which means below the laboratory limit rather than an absence of lead.

No community here has PFAS above the federal limit on record. State inspectors recorded significant deficiencies at 11 of them.

Frequently Asked Questions

Is Jackson County tap water safe to drink?▼
No community in Jackson County has an open violation on record. No community has PFAS above the federal limit on record.
What is the lead level in Jackson County?▼
Among communities with a detection the median is 5.45 ppb, 36% of the 15 ppb action level. 10 reported none detected and 0 reported no result.
How many water systems serve Jackson County?▼
11 community water systems serve 12 communities here.
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