Compliance record
Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.
| Violation | Type | Status | Period |
|---|---|---|---|
| TT | Health-based | Resolved | 2020-07-01 → 2020-12-31 |
| TT | Health-based | Resolved | 2020-07-01 → 2020-12-31 |
| MR | Monitoring | Resolved | 2024-10-01 → 2024-12-31 |
| MR | Monitoring | Resolved | 2024-10-01 → 2024-12-31 |
| MR | Monitoring | Resolved | 2024-10-01 → 2024-12-31 |
| MR | Monitoring | Resolved | 2024-10-01 → 2024-12-31 |
| MR | Monitoring | Resolved | 2024-10-01 → 2024-12-31 |
| MR | Monitoring | Resolved | 2024-10-01 → 2024-12-31 |
| MR | Monitoring | Resolved | 2024-10-01 → 2024-12-31 |
| MR | Monitoring | Resolved | 2024-10-01 → 2024-12-31 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| TTHM | 23.36 µg/L 29% of the EPA limit 80 µg/L
worst single sample: 31.4 µg/L | 183/183 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 6.6 µg/L 11% of the EPA limit 60 µg/L
worst single sample: 10.7 µg/L | 179/185 | SYR4 | 2012–2019 |
| Lead | 0.0030 mg/L 20% of the EPA limit 0.0150 mg/L | 25/25 | LCR | 2025 |
| Lead | 6.2 µg/L 41% of the EPA limit 15 µg/L
worst single sample: 8.1 µg/L | 20/30 | SYR4 | 2017 |
| Copper | 454 µg/L 35% of the EPA limit 1300 µg/L
worst single sample: 550 µg/L | 13/30 | SYR4 | 2017 |
| Barium | 22 µg/L 1.1% of the EPA limit 2000 µg/L | 8/8 | SYR4 | 2012–2019 |
| Bromodichloromethane | 7.455 µg/L No EPA limit set
worst single sample: 7.7 µg/L | 8/8 | SYR4 | 2012–2019 |
| Chloroform | 7.15 µg/L No EPA limit set
worst single sample: 7.5 µg/L | 8/8 | SYR4 | 2012–2019 |
| Dibromochloromethane | 4.775 µg/L No EPA limit set
worst single sample: 5.3 µg/L | 8/8 | SYR4 | 2012–2019 |
| Fluoride | 1165 µg/L 29% of the EPA limit 4000 µg/L
worst single sample: 1200 µg/L | 8/8 | SYR4 | 2012–2019 |
| Nitrate | 390 µg/L 3.9% of the EPA limit 10000 µg/L | 8/8 | SYR4 | 2012–2015 |
| Nitrate-Nitrite | 444 µg/L 4.4% of the EPA limit 10000 µg/L
worst single sample: 450 µg/L | 5/5 | SYR4 | 2016–2019 |
| 2,4-D | 0.5000 µg/L 0.7% of the EPA limit 70 µg/L | 1/7 | SYR4 | 2012–2019 |
| Atrazine | 0.5000 µg/L 17% of the EPA limit 3 µg/L | 1/33 | SYR4 | 2012–2019 |
| Bromoform | 5.3 µg/L No EPA limit set | 1/8 | SYR4 | 2012–2019 |
| Chromium | 3.5 µg/L 3.5% of the EPA limit 100 µg/L | 1/8 | SYR4 | 2012–2019 |
| Gross Alpha, Excl. Radon And U | 0.5400 pCi/L 3.6% of the EPA limit 15 pCi/L | 1/1 | SYR4 | 2018 |
| Mercury | 0.2300 µg/L 12% of the EPA limit 2 µg/L | 1/8 | SYR4 | 2012–2019 |
86 contaminants tested, none detected
Utility contact
Frequently asked questions about Hammond Water Works Department
Is Hammond Water Works Department tap water safe to drink?
EPA monitoring detected 18 contaminants in Hammond Water Works Department's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.
What contaminants were detected in Hammond Water Works Department's water?
EPA monitoring detected TTHM, Total Haloacetic Acids (HAA5), Lead, Lead, Copper, and others. The full list with the level and data source for each is above.
How many people does Hammond Water Works Department serve?
Hammond Water Works Department reports serving 78,384 people in Indiana, per its EPA record.
Has Hammond Water Works Department had any water quality violations?
The EPA has 36 violations on file for Hammond Water Works Department, of which 2 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.
Where does this data come from?
Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.