States › Illinois › Vermilion County

Vermilion County, IL Water Quality

Water quality data for 19 public water systems serving Vermilion County, Illinois — based on EPA SDWIS enforcement records, lead testing results, and health-based violation history.

📅 2026 Report 🔄 Data updated 2026 Q2 📍 19 water systems · 21 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

Vermilion County Earns a B

Vermilion County: 21 communities across 19 water systems. 90.5% have no open violations.

  • Median lead where detected: 2.00 ppb
  • 8 communities with a lead detection, 13 reporting none detected
  • 0 communities with PFAS above the federal limit
  • 13 with significant inspection deficiencies
  • 90.5% of communities have no open violations
2 ppb
Median Lead Level
County-wide, 90th percentile
19
Water Systems
Active CWS & NTNCWS
90%
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
  • Catlin
    Not detected
    No federal limits exceeded on record
    B
  • Rossville
    Not detected
    No federal limits exceeded on record
    B
  • Fithian
    Not detected
    No federal limits exceeded on record
    B
  • Westville
    2.00 ppb
    1 health-based violation since 2015
    A
  • Oakwood
    1.70 ppb
    1 health-based violation since 2015
    B
⚠ Needs Attention
  • Rankin
    Not detected
    1 violation currently open
    D
  • Alvan (Alvin)
    Not detected
    Copper above the 1,300 ppb action level
    C
  • Potomac
    Not detected
    1 violation currently open
    C
  • Ridge Farm
    Not detected
    Copper above the 1,300 ppb action level
    C
  • East Lynn
    Not detected
    4 significant inspection deficiencies
    C
County Lead Level — Median 2 ppb
Based on most recent 90th percentile lead tests across all reporting systems
0 ppb5 ppb10 ppb15 ppb
County median: 2 ppb — 13.3% of the federal action level
Systems by Lead Level
Under 5 ppb
6
5 – 10 ppb
2
No Data
13

All Cities in Vermilion County

Danville 8.00 ppb B
Hoopeston 1.80 ppb A
Westville 2.00 ppb A
Georgetown Not detected A
Tilton 8.00 ppb B
Catlin Not detected B
Oakwood 1.70 ppb B
Rossville Not detected B
Potomac Not detected C
Fairmount Not detected B
Bismarck Not detected B
Ridge Farm Not detected C
Fithian Not detected B
Rankin Not detected D
Sidell Not detected B
Belgium 2.00 ppb A
Allerton 2.50 ppb B
Olivet Not detected B
Indianola 1.40 ppb B
Alvan (Alvin) Not detected C
East Lynn Not detected C
Showing 21 cities
No active violations Active violations

About Vermilion County Drinking Water

Vermilion County is served by 19 water systems covering 21 communities. 91% have no open violations.

Of the communities reporting lead results, 8 recorded a detection, with a median of 2.00 ppb — 13% of the federal action level. 13 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 13 of them.

Frequently Asked Questions

Is Vermilion County tap water safe to drink?▼
91% of communities have no open violation. No community has PFAS above the federal limit on record.
What is the lead level in Vermilion County?▼
Among communities with a detection the median is 2.00 ppb, 13% of the 15 ppb action level. 13 reported none detected and 0 reported no result.
How many water systems serve Vermilion County?▼
19 community water systems serve 21 communities here.
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