Public water system record
Berwyn
Serves Berwyn, Cook County, IL · 57,250 people served
Federal records show no health-based violations and 3 monitoring/reporting issues for Berwyn 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
- 3
Key facts
- Berwyn buys its water from Chicago.
- Record on file since 1992, with 3 health-based violations before October 19, 2016.
- Lead pipe inventory: 6,572 lead and 42 unknown out of 7,498 service lines.
Check whether Berwyn 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 |
|---|---|---|
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2025 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Apr 1, 2025 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Apr 1, 2025 | Resolved |
Full record since 1992
EPA's records for Berwyn go back to 1992. Before October 19, 2016 they list 3 health-based violations (3 resolved) and 15 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 1 | 3 |
| 2000s | 0 | 5 |
| 2010 to October 18, 2016 | 2 | 7 |
| 2020s | 0 | 3 |
Most recent health-based violation before October 19, 2016: Lead and Copper Rule, began October 2015, Resolved.
Show all 3 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Lead and Copper Rule
Treatment technique failure
|
Oct 1, 2015 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 2012 | Resolved |
|
Lead and Copper Rule
Treatment technique failure
|
Dec 7, 1992 | Resolved |
Where the water comes from
Berwyn buys its water from Chicago. It lists no wells or intakes of its own. 1 smaller public system such as schools, businesses or campgrounds buys water from Berwyn. 1 other public water system has an emergency connection to Berwyn.
Buys water from
- Chicago Chicago, IL
Annual water quality report
Berwyn 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