Public water system record
Posen
Serves Posen, Cook County, IL · 5,331 people served
Federal records show no health-based violations and 4 monitoring/reporting issues for Posen in the last ten years. At least one of these issues remains unresolved.
System profile
- Health-based violations, last 10 years
- 0
- Resolved
- 0
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 4
Key facts
- Posen buys its water from Harvey.
- Record on file since 1992, with 3 health-based violations before October 19, 2016.
- Lead pipe inventory: 1,227 lead and 501 unknown out of 1,741 service lines.
Check whether Posen 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.
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 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2025 | Active |
|
Lead and Copper Rule
Monitoring and reporting
|
Dec 30, 2020 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2017 | Resolved |
Full record since 1992
EPA's records for Posen go back to 1992. Before October 19, 2016 they list 3 health-based violations (3 resolved) and 18 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 2 | 4 |
| 2000s | 0 | 10 |
| 2010 to October 18, 2016 | 1 | 4 |
| October 19, 2016 to 2019 | 0 | 1 |
| 2020s | 0 | 3 |
Most recent health-based violation before October 19, 2016: Total Coliform, began June 2013, Resolved.
Show all 3 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Jun 1, 2013 | Resolved |
|
Lead and Copper Rule
Treatment technique failure
|
Jan 1, 1996 | Resolved |
|
Lead and Copper Rule
Treatment technique failure
|
Dec 21, 1992 | Resolved |
Where the water comes from
Posen buys its water from Harvey. It lists no wells or intakes of its own.
Buys water from
- Harvey Harvey, IL
Annual water quality report
Posen 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