Public water system record
Northlake
Serves Northlake and Stone Park, Cook County, IL · 12,840 people served
Federal records show no health-based violations and 2 monitoring/reporting issues for Northlake 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
- 2
Key facts
- Northlake buys its water from Melrose Park.
- Record on file since 2002, with 1 health-based violation before October 19, 2016.
- Lead pipe inventory: 150 lead and 1,447 unknown out of 3,093 service lines.
Check whether Northlake 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, 2024 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2016 | Resolved |
Full record since 2002
EPA's records for Northlake go back to 2002. Before October 19, 2016 they list 1 health-based violation (1 archived by EPA without a recorded fix) and 3 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 2000s | 1 | 1 |
| 2010 to October 18, 2016 | 0 | 2 |
| 2020s | 0 | 1 |
Most recent health-based violation before October 19, 2016: Total Coliform, began February 2002, Archived.
Show the health-based violation before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Feb 1, 2002 | Archived |
Where the water comes from
Northlake buys its water from Melrose Park. It lists no wells or intakes of its own. 1 other public water system has an emergency connection to Northlake.
Buys water from
- Melrose Park Melrose Park, IL
Annual water quality report
Northlake 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