Public water system record
Glenbrook SD
On record as serving Cook County, IL · Serves 822 people
Federal records show no health-based violations and no monitoring or reporting issues for Glenbrook SD 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
- Glenbrook SD buys its water from Highland Park.
- Record on file since 1994, with 2 health-based violations before October 19, 2016.
- Lead pipe inventory: 5 lead and 0 unknown out of 337 service lines.
Check whether Glenbrook SD 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 1994
EPA's records for Glenbrook SD go back to 1994. Before October 19, 2016 they list 2 health-based violations (2 resolved) and 6 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 1 | 0 |
| 2000s | 1 | 5 |
| 2010 to October 18, 2016 | 0 | 1 |
Most recent health-based violation before October 19, 2016: Interim Enhanced Surface Water Treatment Rule (acute), began April 2005, Resolved.
Show all 2 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Apr 1, 2005 | Resolved |
|
Lead and Copper Rule
Treatment technique failure
|
Jan 1, 1994 | Resolved |
Where the water comes from
Glenbrook SD buys its water from Highland Park. It lists no wells or intakes of its own.
Buys water from
- Highland Park Highland Park, IL
Annual water quality report
Glenbrook SD 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