Public water system record
Hammond Water Works Department
Serves Hammond and Whiting, Lake County, IN · 78,384 people served
Federal records show 1 health-based violation and 8 monitoring/reporting issues for Hammond Water Works Department in the last ten years. The most serious issue in this window was a resolved Lead and Copper Rule violation.
System profile
- Health-based violations, last 10 years
- 1
- Resolved
- 1
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 8
Key facts
- Hammond Water Works Department draws water from 1 surface water intake.
- Record on file since 1979, with 0 health-based violations before October 19, 2016.
- Lead pipe inventory: 22,380 lead and 4,518 unknown out of 28,183 service lines.
Check whether Hammond Water Works Department 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.
| Contaminant | Rule family | Start date | Status | Acute |
|---|---|---|---|---|
|
Lead and Copper Rule
Treatment technique failure
|
350 | Jul 1, 2020 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
LASSO
Monitoring and reporting
|
Oct 1, 2024 | Resolved |
|
Atrazine
Monitoring and reporting
|
Oct 1, 2024 | Resolved |
|
Di(2-ethylhexyl) phthalate
Monitoring and reporting
|
Oct 1, 2024 | Resolved |
|
Simazine
Monitoring and reporting
|
Oct 1, 2024 | Resolved |
|
Di(2-ethylhexyl) adipate
Monitoring and reporting
|
Oct 1, 2024 | Resolved |
|
Revised Total Coliform Rule
RPT
|
Aug 1, 2021 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jul 1, 2021 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Apr 1, 2020 | Resolved |
Full record since 1979
EPA's records for Hammond Water Works Department go back to 1979. Before October 19, 2016 they list no health-based violations and 9 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1970s | 0 | 8 |
| 1980s | 0 | 1 |
| 2020s | 1 | 8 |
What the violations mean
Lead and Copper Rule
1 incidentThe system did not complete a treatment step or action that the Lead and Copper Rule requires (a treatment technique violation).
The utility had to notify customers about this violation.
Where the water comes from
Hammond Water Works Department draws water from 1 surface water intake. 7 other community water systems buy water from Hammond Water Works Department. 1 other public water system has an emergency connection to Hammond Water Works Department.
Community systems that buy water from it
- Calumet City Calumet City, IL
- Chicago Heights Chicago Heights, IL
- Griffith Water Department Griffith, IN
- Highland Water Works Highland, IN
- Lansing Lansing, IL
- Munster Water Company Munster, IN
- Whiting Water Department Whiting, IN
Annual water quality report
Hammond Water Works Department 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