Public water system record
Cuii - Indiana Water Service
Serves Merrillville and Winfield, Lake County, IN · 4,200 people served
Federal records show no health-based violations and 2 monitoring/reporting issues for Cuii - Indiana Water Service 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
- Cuii - Indiana Water Service buys its water from Indiana American Water - Northwest.
- Most recent enforcement action: boil water order by Indiana, June 2010.
- Record on file since 1991, with 2 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 424 unknown out of 1,700 service lines.
Check whether Cuii - Indiana Water Service 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 |
|---|---|---|
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
Full record since 1991
EPA's records for Cuii - Indiana Water Service go back to 1991. Before October 19, 2016 they list 2 health-based violations (2 resolved) and 5 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 1 | 4 |
| 2000s | 0 | 1 |
| 2010 to October 18, 2016 | 1 | 0 |
| October 19, 2016 to 2019 | 0 | 2 |
Most recent health-based violation before October 19, 2016: Total Coliform, began June 2010, Resolved.
Show all 2 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Jun 1, 2010 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Dec 1, 1999 | Resolved |
Enforcement actions
Indiana regulators issued 1 boil water order to Cuii - Indiana Water Service in 2010. The most recent was a boil water order in June 2010.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Jun 30, 2010 | Indiana | Boil water order | 1 violation (1 health-based): Total Coliform |
Where the water comes from
Cuii - Indiana Water Service buys its water from Indiana American Water - Northwest. It lists no wells or intakes of its own.
Buys water from
- Indiana American Water - Northwest Greenwood, IN
Annual water quality report
Cuii - Indiana Water Service 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 Indiana.
Certified drinking water labs by state EPA guidance for private wells