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 |
|---|---|---|---|
| Other | Monitoring | Resolved | 2014-07-01 |
| Other | Monitoring | Resolved | 2014-07-01 |
| Other | Monitoring | Resolved | 2006-09-07 |
| Other | Monitoring | Resolved | 2006-09-07 |
| Other | Monitoring | Resolved | 2005-11-09 |
| Other | Monitoring | Resolved | 2005-11-09 |
| MR | Monitoring | Resolved | 2002-01-01 → 2002-12-31 |
| MR | Monitoring | Resolved | 2002-01-01 → 2002-12-31 |
| MR | Monitoring | Resolved | 2002-01-01 → 2002-12-31 |
| MR | Monitoring | Resolved | 2002-01-01 → 2002-12-31 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate | 727.75 µg/L 7.3% of the EPA limit 10000 µg/L
worst single sample: 729 µg/L | 22/34 | SYR4 | 2012–2019 |
| Copper | 331.05 µg/L 25% of the EPA limit 1300 µg/L
worst single sample: 959 µg/L | 20/20 | SYR4 | 2017 |
| Lead | 0.0127 mg/L 85% of the EPA limit 0.0150 mg/L | 18/18 | LCR | 2024 |
| Lead | 9.76 µg/L 65% of the EPA limit 15 µg/L
worst single sample: 10.9 µg/L | 13/20 | SYR4 | 2017 |
| TTHM | 57.2 µg/L 72% of the EPA limit 80 µg/L
worst single sample: 63.5 µg/L | 11/11 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 30.5 µg/L 51% of the EPA limit 60 µg/L
worst single sample: 35.8 µg/L | 11/11 | SYR4 | 2012–2019 |
| Fluoride | 1539.6 µg/L 38% of the EPA limit 4000 µg/L
worst single sample: 1590 µg/L | 4/4 | SYR4 | 2014–2017 |
| Lithium | 41.3 µg/L No EPA limit set | 4/4 | UCMR-5 | 2023 |
| Arsenic | 1.455 µg/L 15% of the EPA limit 10 µg/L
worst single sample: 1.5 µg/L | 2/4 | SYR4 | 2014–2017 |
| Gross Alpha, Excl. Radon And U | 3.345 pCi/L 22% of the EPA limit 15 pCi/L
worst single sample: 3.5 pCi/L | 2/2 | SYR4 | 2014 |
| Antimony, Total | 1.1 µg/L 18% of the EPA limit 6 µg/L | 1/4 | SYR4 | 2014–2017 |
| Bromodichloromethane | 4.6 µg/L No EPA limit set | 1/2 | SYR4 | 2014 |
| Bromoform | 0.6000 µg/L No EPA limit set | 1/2 | SYR4 | 2014 |
| Chloroform | 3.1 µg/L No EPA limit set | 1/2 | SYR4 | 2014 |
| Dibromochloromethane | 3.1 µg/L No EPA limit set | 1/2 | SYR4 | 2014 |
86 contaminants tested, none detected
Utility contact
Frequently asked questions about Decatur Water Department
Is Decatur Water Department tap water safe to drink?
EPA monitoring detected 15 contaminants in Decatur Water 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 Decatur Water Department's water?
EPA monitoring detected Nitrate, Copper, Lead, Lead, TTHM, and others. The full list with the level and data source for each is above.
How many people does Decatur Water Department serve?
Decatur Water Department reports serving 9,900 people in Indiana, per its EPA record.
Has Decatur Water Department had any water quality violations?
The EPA has 87 violations on file for Decatur Water Department, of which 0 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.