Public water system record
Lake Bluff
Serves Lake Bluff and Knollwood, Lake County, IL · 5,600 people served
Federal records show no health-based violations and 3 monitoring/reporting issues for Lake Bluff 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
- 3
Key facts
- Lake Bluff buys its water from Central Lake County Jawa.
- Most recent formal enforcement: signed compliance agreement by Illinois, May 2005.
- Record on file since 1992, with 3 health-based violations before October 19, 2016.
- Lead pipe inventory: 111 lead and 5 unknown out of 1,991 service lines.
Check whether Lake Bluff 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 | Active |
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2023 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2018 | Resolved |
Full record since 1992
EPA's records for Lake Bluff go back to 1992. Before October 19, 2016 they list 3 health-based violations (3 resolved) and 8 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 3 | 4 |
| 2000s | 0 | 4 |
| October 19, 2016 to 2019 | 0 | 1 |
| 2020s | 0 | 2 |
Most recent health-based violation before October 19, 2016: Lead and Copper Rule, began January 1995, Resolved.
Show all 3 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Lead and Copper Rule
Treatment technique failure
|
Jan 1, 1995 | Resolved |
|
Lead and Copper Rule
Treatment technique failure
|
Feb 4, 1993 | Resolved |
|
Lead and Copper Rule
Treatment technique failure
|
Jan 1, 1993 | Resolved |
Enforcement actions
Illinois regulators took 1 formal enforcement action against Lake Bluff in 2005. The most recent was a signed compliance agreement in May 2005.
| Date | By | Action | Violations covered |
|---|---|---|---|
| May 12, 2005 | Illinois | Signed compliance agreement | 1 violation: Lead and Copper Rule |
Where the water comes from
Lake Bluff buys its water from Central Lake County Jawa. It lists no wells or intakes of its own. It also has an emergency connection to Lake Forest.
Buys water from
- Central Lake County Jawa Lake Bluff, IL
Emergency or part-time connections to
- Lake Forest Lake Forest, IL
Annual water quality report
Lake Bluff 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