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Peoria County, IL Water Quality

Water quality data for 12 public water systems serving Peoria County, Illinois — based on EPA SDWIS enforcement records, lead testing results, and health-based violation history.

📅 2026 Report 🔄 Data updated 2026 Q2 📍 12 water systems · 19 cities
⚠️
Caution Advised — Some Systems Need Attention

Some systems have elevated lead levels or active violations. Check your specific city below.

C

Peoria County Earns a C

Peoria County: 19 communities across 12 water systems. 100.0% have no open violations.

  • Median lead where detected: 9.00 ppb
  • 12 communities with a lead detection, 7 reporting none detected
  • 7 communities with PFAS above the federal limit
  • 11 with significant inspection deficiencies
  • 100.0% of communities have no open violations
9 ppb
Median Lead Level
County-wide, 90th percentile
12
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
  • Chillicothe
    1.70 ppb
    No federal limits exceeded on record
    A
  • Elmwood
    Not detected
    No federal limits exceeded on record
    B
  • Hanna City
    1.60 ppb
    No federal limits exceeded on record
    B
  • Glasford
    Not detected
    No federal limits exceeded on record
    B
  • Brimfield
    0.70 ppb
    No federal limits exceeded on record
    B
⚠ Needs Attention
  • Peoria
    9.00 ppb
    PFAS above the limit at 1 of 4 sampling points
    F
  • Bartonville
    9.00 ppb
    PFAS above the limit at 1 of 4 sampling points
    F
  • West Peoria
    9.00 ppb
    PFAS above the limit at 1 of 4 sampling points
    F
  • Bellevue
    9.00 ppb
    PFAS above the limit at 1 of 4 sampling points
    F
  • Lake Camelot
    9.00 ppb
    PFAS above the limit at 1 of 4 sampling points
    F
County Lead Level — Median 9 ppb
Based on most recent 90th percentile lead tests across all reporting systems
0 ppb5 ppb10 ppb15 ppb
County median: 9 ppb — 60% of the federal action level
Systems by Lead Level
Under 5 ppb
5
5 – 10 ppb
7
No Data
7

All Cities in Peoria County

Peoria 9.00 ppb F
Chillicothe 1.70 ppb A
Bartonville 9.00 ppb F
Peoria Heights Not detected A
Elmwood Not detected B
West Peoria 9.00 ppb F
Bellevue 9.00 ppb F
Lake Camelot 9.00 ppb F
Princeville Not detected B
Dunlap 2.30 ppb B
Rome 9.00 ppb F
Hanna City 1.60 ppb B
Glasford Not detected B
Brimfield 0.70 ppb B
Trivoli Not detected B
Mossville 9.00 ppb F
Kingston Mines 0.60 ppb B
Smithville Not detected B
Mapleton Not detected C
Showing 19 cities
No active violations Active violations

About Peoria County Drinking Water

Peoria County is served by 12 water systems covering 19 communities. No community here has an open violation on record.

Of the communities reporting lead results, 12 recorded a detection, with a median of 9.00 ppb — 60% of the federal action level. 7 reported none detected, which means below the laboratory limit rather than an absence of lead.

7 of 19 communities have PFAS above the limits EPA set in 2024, measured as a running annual average at each sampling point. State inspectors recorded significant deficiencies at 11 of them.

Frequently Asked Questions

Is Peoria County tap water safe to drink?▼
No community in Peoria County has an open violation on record. 7 of 19 have PFAS above the federal limit, which is the main open concern.
What is the lead level in Peoria County?▼
Among communities with a detection the median is 9.00 ppb, 60% of the 15 ppb action level. 7 reported none detected and 0 reported no result.
How many water systems serve Peoria County?▼
12 community water systems serve 19 communities here.
← Back to Illinois water quality overview