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Kankakee County, IL Water Quality

Water quality data for 10 public water systems serving Kankakee County, Illinois — based on EPA SDWIS enforcement records, lead testing results, and health-based violation history.

📅 2026 Report 🔄 Data updated 2026 Q2 📍 10 water systems · 16 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

Kankakee County Earns a B

Kankakee County: 16 communities across 10 water systems. 100.0% have no open violations.

  • Median lead where detected: 2.60 ppb
  • 13 communities with a lead detection, 3 reporting none detected
  • 0 communities with PFAS above the federal limit
  • 14 with significant inspection deficiencies
  • 100.0% of communities have no open violations
2.6 ppb
Median Lead Level
County-wide, 90th percentile
10
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
  • Hopkins Park
    4.10 ppb
    No federal limits exceeded on record
    B
  • St. Anne
    Not detected
    2 significant inspection deficiencies
    B
  • Sun River Terrace
    2.40 ppb
    Copper above the 1,300 ppb action level
    B
  • Bonfield
    2.52 ppb
    1 significant inspection deficiency
    B
  • Sammons Point
    Not detected
    2 significant inspection deficiencies
    B
⚠ Needs Attention
  • Kankakee
    2.60 ppb
    Copper above the 1,300 ppb action level
    C
  • Bourbonnais
    2.60 ppb
    Copper above the 1,300 ppb action level
    C
  • Bradley
    2.60 ppb
    Copper above the 1,300 ppb action level
    C
  • Manteno
    2.60 ppb
    Copper above the 1,300 ppb action level
    C
  • Momence
    7.30 ppb
    3 significant inspection deficiencies
    C
County Lead Level — Median 2.6 ppb
Based on most recent 90th percentile lead tests across all reporting systems
0 ppb5 ppb10 ppb15 ppb
County median: 2.6 ppb — 17.3% of the federal action level
Systems by Lead Level
Under 5 ppb
11
5 – 10 ppb
1
10 – 15 ppb
1
No Data
3

All Cities in Kankakee County

Kankakee 2.60 ppb C
Bourbonnais 2.60 ppb C
Bradley 2.60 ppb C
Manteno 2.60 ppb C
Momence 7.30 ppb C
Limestone 2.60 ppb C
Herscher 10.60 ppb B
Grant Park 2.60 ppb C
St. Anne Not detected B
Aroma Park 2.60 ppb C
Sun River Terrace 2.40 ppb B
Bonfield 2.52 ppb B
Buckingham 3.30 ppb B
Reddick Not detected C
Hopkins Park 4.10 ppb B
Sammons Point Not detected B
Showing 16 cities
No active violations Active violations

About Kankakee County Drinking Water

Kankakee County is served by 10 water systems covering 16 communities. No community here has an open violation on record.

Of the communities reporting lead results, 13 recorded a detection, with a median of 2.60 ppb — 17% of the federal action level. 3 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 14 of them.

Frequently Asked Questions

Is Kankakee County tap water safe to drink?▼
No community in Kankakee County has an open violation on record. No community has PFAS above the federal limit on record.
What is the lead level in Kankakee County?▼
Among communities with a detection the median is 2.60 ppb, 17% of the 15 ppb action level. 3 reported none detected and 0 reported no result.
How many water systems serve Kankakee County?▼
10 community water systems serve 16 communities here.
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