Public water system record
Hillsboro
Serves Hillsboro, Taylor Springs and Schram City, Montgomery County, IL · 4,402 people served
Federal records show 3 health-based violations and 6 monitoring/reporting issues for Hillsboro 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
- 3
- Resolved
- 3
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 6
Key facts
- Hillsboro draws water from 2 surface water intakes.
- Highest measured level in the last 10 years: Haloacetic Acids (HAA5), 0.067 mg/L, federal limit 0.06 mg/L (1.1 times the limit), 2019.
- Most recent formal enforcement: signed compliance agreement by Illinois, March 2010.
- Record on file since 1977, with 9 health-based violations before October 19, 2016.
- Lead pipe inventory: 30 lead and 1,080 unknown out of 2,082 service lines.
Check whether Hillsboro 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 0.063 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
|
220 | Jan 1, 2020 | 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 | Oct 1, 2019 | Resolved | No |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.067 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
|
220 | Jul 1, 2019 | 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
Monitoring and reporting
|
Jul 1, 2025 | Active |
|
Nitrite
Monitoring and reporting
|
Apr 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Nitrate
Monitoring and reporting
|
Apr 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Jul 1, 2024 | Resolved |
|
Toxaphene
Monitoring and reporting
|
Apr 1, 2023 | Resolved |
|
Nitrite
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
Full record since 1977
EPA's records for Hillsboro go back to 1977. Before October 19, 2016 they list 9 health-based violations (9 resolved) and 5 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1970s | 0 | 1 |
| 1990s | 4 | 1 |
| 2000s | 4 | 3 |
| 2010 to October 18, 2016 | 1 | 0 |
| October 19, 2016 to 2019 | 2 | 1 |
| 2020s | 1 | 5 |
Most recent health-based violation before October 19, 2016: Haloacetic Acids (HAA5), began January 2010, Resolved.
Show all 9 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 67 µg/L, federal limit 60 µg/L (1.1 times the limit)
|
Jan 1, 2010 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 64 µg/L, federal limit 60 µg/L (1.1 times the limit)
|
Oct 1, 2009 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Jul 1, 2009 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Jun 1, 2009 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Jun 1, 2009 | Resolved |
|
Atrazine
Contaminant limit exceeded
|
Apr 1, 1995 | Resolved |
|
Atrazine
Contaminant limit exceeded
|
Jan 1, 1995 | Resolved |
|
Atrazine
Contaminant limit exceeded
|
Oct 1, 1994 | Resolved |
|
Atrazine
Contaminant limit exceeded
|
Jul 1, 1994 | Resolved |
Enforcement actions
Illinois regulators took 3 formal enforcement actions against Hillsboro between 2004 and 2010. The most recent was a signed compliance agreement in March 2010.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Mar 15, 2010 | Illinois | Signed compliance agreement | 2 violations (2 health-based): Haloacetic Acids (HAA5) |
| Sep 30, 2009 | Illinois | Signed compliance agreement | 3 violations (3 health-based): Interim Enhanced Surface Water Treatment Rule |
| Jul 30, 2004 | Illinois | Signed compliance agreement | 1 violation: CARBON, TOTAL |
What the violations mean
Haloacetic Acids (HAA5)
3 incidentsHaloacetic acid byproducts exceeded the federal limit
Long-term exposure to HAAs may increase cancer risk
Where the water comes from
Hillsboro draws water from 2 surface water intakes. 4 other community water systems and 1 smaller public system such as schools, businesses or campgrounds buy water from Hillsboro.
Community systems that buy water from it
- Ej Water-MCWC Dieterich, IL
- Graham Correctional Site Taylorville, IL
- Schram City Hillsboro, IL
- Taylor Springs Taylor Springs, IL
Annual water quality report
Hillsboro 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