Public water system record
Colchester
Serves Colchester, McDonough County, IL · 1,395 people served
Federal records show no health-based violations and no monitoring or reporting issues for Colchester in the last ten years.
System profile
- Health-based violations, last 10 years
- 0
- Resolved
- 0
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 0
Key facts
- Colchester buys its water from Macomb.
- Most recent formal enforcement: signed compliance agreement by Illinois, January 2005.
- Record on file since 1977, with 23 health-based violations before October 19, 2016.
Check whether Colchester 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.
None since October 2016, and no monitoring or reporting violations either.
Full record since 1977
EPA's records for Colchester go back to 1977. Before October 19, 2016 they list 23 health-based violations (23 resolved) and 7 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1970s | 0 | 1 |
| 1990s | 0 | 2 |
| 2000s | 23 | 4 |
Most recent health-based violation before October 19, 2016: Interim Enhanced Surface Water Treatment Rule (acute), began March 2008, Resolved.
Show all 23 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Mar 1, 2008 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Feb 1, 2008 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Feb 1, 2008 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Dec 1, 2007 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Dec 1, 2007 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
May 1, 2007 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Apr 1, 2007 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Mar 1, 2007 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Mar 1, 2007 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Aug 1, 2006 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jul 1, 2005 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
|
Apr 1, 2005 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
|
Apr 1, 2005 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
|
Jan 1, 2005 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
|
Jan 1, 2005 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
|
Oct 1, 2004 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
|
Jul 1, 2004 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
|
Apr 1, 2004 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
|
Jan 1, 2004 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
|
Oct 1, 2003 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
|
Jul 1, 2003 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
|
Apr 1, 2003 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
|
Jan 1, 2003 | Resolved |
Enforcement actions
Illinois regulators took 2 formal enforcement actions against Colchester between 2004 and 2005. The most recent was a signed compliance agreement in January 2005.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Jan 13, 2005 | Illinois | Signed compliance agreement | 2 violations (2 health-based): Gross Alpha, Excl. Radon and U |
| Feb 17, 2004 | Illinois | Signed compliance agreement | 10 violations (10 health-based): Combined Radium (-226 and -228) |
Where the water comes from
Colchester buys its water from Macomb. It lists no wells or intakes of its own.
Buys water from
- Macomb Macomb, IL
Annual water quality report
Colchester 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