Public water system record
Le Roy
Serves Le Roy, McLean County, IL · 3,498 people served
Federal records show 4 health-based violations and 8 monitoring/reporting issues for Le Roy in the last ten years. The most serious issue in this window was a resolved Haloacetic Acids (HAA5) violation.
System profile
- Health-based violations, last 10 years
- 4
- Resolved
- 4
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 8
Key facts
- Le Roy draws water from 3 wells.
- Highest measured level in the last 10 years: Haloacetic Acids (HAA5), 0.073 mg/L, federal limit 0.06 mg/L (1.2 times the limit), 2023.
- Most recent formal enforcement: compliance order (no penalty) by Illinois, November 2025.
- Record on file since 1977, with 8 health-based violations before October 19, 2016.
- Lead pipe inventory: 39 lead and 10 unknown out of 1,537 service lines.
Check whether Le Roy serves your address
Health-based violations
Since October 2016Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.
| Contaminant | Rule family | Start date | Status | Acute |
|---|---|---|---|---|
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.066 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
|
220 | Jul 1, 2025 | Resolved | No |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.062 mg/L, federal limit 0.06 mg/L (at or just above the limit)
|
220 | Jul 1, 2023 | Resolved | No |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.073 mg/L, federal limit 0.06 mg/L (1.2 times the limit)
|
220 | Apr 1, 2023 | Resolved | No |
|
Lead and Copper Rule
Treatment technique failure
|
350 | Mar 1, 2023 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
LEAD AND COPPER RULE REVISIONS
RPT
|
Jul 2, 2025 | Active |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2025 | Active |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Oct 1, 2024 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2024 | Resolved |
|
Public Notice
OTHER
|
May 25, 2023 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Arsenic
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
Full record since 1977
EPA's records for Le Roy go back to 1977. Before October 19, 2016 they list 8 health-based violations (7 resolved, 1 archived by EPA without a recorded fix) and 10 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1970s | 0 | 1 |
| 1990s | 1 | 1 |
| 2000s | 2 | 8 |
| 2010 to October 18, 2016 | 5 | 0 |
| 2020s | 4 | 8 |
Most recent health-based violation before October 19, 2016: Total Coliform, began June 2015, Resolved.
Show all 8 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Jun 1, 2015 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
May 1, 2015 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jan 1, 2015 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 2014 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jan 1, 2014 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
|
Jan 23, 2006 | Resolved |
|
Lead and Copper Rule
Treatment technique failure
|
Jan 1, 2002 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Mar 1, 1999 | Archived |
Enforcement actions
Illinois regulators took 3 formal enforcement actions against Le Roy between 2006 and 2025. The most recent was a compliance order (no penalty) in November 2025.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Nov 7, 2025 | Illinois | Compliance order (no penalty) | 2 violations (1 health-based): Haloacetic Acids (HAA5), Public Notice |
| Sep 1, 2023 | Illinois | Compliance order (no penalty) | 3 violations (3 health-based): Haloacetic Acids (HAA5), Lead and Copper Rule |
| Jul 27, 2006 | Illinois | Signed compliance agreement | 1 violation (1 health-based): Arsenic |
What the violations mean
Haloacetic Acids (HAA5)
3 incidentsHaloacetic acid byproducts exceeded the federal limit
Long-term exposure to HAAs may increase cancer risk
Lead and Copper Rule
1 incidentThe system did not complete a treatment step or action that the Lead and Copper Rule requires (a treatment technique violation).
The utility had to notify customers about this violation.
Where the water comes from
Le Roy draws water from 3 wells. 1 smaller public system such as schools, businesses or campgrounds buys water from Le Roy.
Annual water quality report
Le Roy must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.
Where the state allows it, systems serving fewer than 10,000 people may publish the report in a local newspaper or news site instead of mailing it, and must provide a copy on request.
Find a posted report with EPA's Consumer Confidence Report search
Testing your own water
To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by Illinois.
Certified drinking water labs by state EPA guidance for private wells