Public water system record
Indiana American Water - Northwest
Serves Gary, Merrillville, Portage and 11 more places, Lake County and Porter County, IN · 210,510 people served
Federal records show no health-based violations and no monitoring or reporting issues for Indiana American Water - Northwest 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
- 0
Key facts
- Indiana American Water - Northwest draws water from 5 wells and 2 surface water intakes (5 of them for emergency, seasonal or other part-time use).
- Record on file since 1980, with 2 health-based violations before October 19, 2016.
- Lead pipe inventory: 11,817 lead and 59,549 unknown out of 90,553 service lines.
Check whether Indiana American Water - Northwest 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, and no monitoring or reporting violations either.
Full record since 1980
EPA's records for Indiana American Water - Northwest go back to 1980. Before October 19, 2016 they list 2 health-based violations (2 resolved) and 9 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 0 | 9 |
| 2000s | 1 | 0 |
| 2010 to October 18, 2016 | 1 | 0 |
Most recent health-based violation before October 19, 2016: Surface Water Treatment Rule, began September 2013, Resolved.
Show all 2 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Surface Water Treatment Rule
Treatment technique failure
|
Sep 1, 2013 | Resolved |
|
Lead and Copper Rule
Treatment technique failure
|
Jul 1, 2008 | Resolved |
Where the water comes from
Indiana American Water - Northwest draws water from 5 wells and 2 surface water intakes (5 of them for emergency, seasonal or other part-time use). 5 other community water systems buy water from Indiana American Water - Northwest.
Community systems that buy water from it
- Crown Point Water Works Crown Point, IN
- Cuii - Indiana Water Service Crown Point, IN
- New Chicago Water Works Hobart, IN
- Ogden Dunes Water Ogden Dunes, IN
- Schererville Water Department Schererville, IN
Annual water quality report
Indiana American Water - Northwest 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 Indiana.
Certified drinking water labs by state EPA guidance for private wells