Public water system record
Wheeling
Serves Wheeling and Prospect Heights, Cook County, IL · 39,725 people served
Federal records show 1 health-based violation and 1 monitoring/reporting issue for Wheeling in the last ten years. The most serious issue in this window was a resolved Revised Total Coliform Rule violation.
System profile
- Health-based violations, last 10 years
- 1
- Resolved
- 1
- Unresolved
- 0
- Any acute record
- Yes
- Monitoring issues, last 10 years
- 1
Key facts
- Wheeling buys its water from Northwest Water Commission.
- Record on file since 1977, with 4 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 8,181 service lines.
Check whether Wheeling 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 |
|---|---|---|---|---|
|
Revised Total Coliform Rule
Contaminant limit exceeded
|
110 | Jun 1, 2019 | Resolved | Yes |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2017 | Resolved |
Full record since 1977
EPA's records for Wheeling go back to 1977. Before October 19, 2016 they list 4 health-based violations (4 archived by EPA without a recorded fix) and 5 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1970s | 0 | 1 |
| 1990s | 3 | 2 |
| 2000s | 1 | 2 |
| October 19, 2016 to 2019 | 1 | 1 |
Most recent health-based violation before October 19, 2016: Total Coliform, began August 2001, Archived.
Show all 4 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Aug 1, 2001 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Jul 1, 1997 | Archived |
|
Total Coliform (acute)
Contaminant limit exceeded
|
Jul 1, 1997 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Jun 1, 1994 | Archived |
What the violations mean
Revised Total Coliform Rule
1 incidentThe system did not meet a requirement of the Revised Total Coliform Rule
Coliform and E. coli rules protect against bacteria in the distribution system
Where the water comes from
Wheeling buys its water from Northwest Water Commission. EPA also lists 2 wells, all for emergency, seasonal or other part-time use. 1 smaller public system such as schools, businesses or campgrounds buys water from Wheeling.
Buys water from
- Northwest Water Commission Des Plaines, IL
Annual water quality report
Wheeling 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.
Systems serving 10,000 or more people must mail or deliver the report to every customer, and from 2027 they must send it twice a year.
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