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 | 2025-09-05 |
| TT | Health-based | Resolved | 2025-09-05 |
| MCL | Health-based | Resolved | 1998-07-01 → 1998-07-31 |
| MCL | Health-based | Resolved | 1998-07-01 → 1998-07-31 |
| MCL | Health-based | Resolved | 1998-07-01 → 1998-07-31 |
| MCL | Health-based | Resolved | 1998-05-01 → 1998-05-31 |
| MCL | Health-based | Resolved | 1998-05-01 → 1998-05-31 |
| MCL | Health-based | Resolved | 1997-06-01 → 1997-06-30 |
| MCL | Health-based | Resolved | 1997-06-01 → 1997-06-30 |
| MCL | Health-based | Resolved | 1997-06-01 → 1997-06-30 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| TTHM | 54.92 µg/L 69% of the EPA limit 80 µg/L
worst single sample: 62 µg/L | 107/107 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 19.825 µg/L 33% of the EPA limit 60 µg/L
worst single sample: 46.5 µg/L | 106/107 | SYR4 | 2012–2019 |
| Copper | 173 µg/L 13% of the EPA limit 1300 µg/L
worst single sample: 364 µg/L | 30/30 | SYR4 | 2017 |
| Lead | 23.425 µg/L 156% of the EPA limit, at the 95th percentile of samples — 15 µg/L
worst single sample: 52.6 µg/L | 16/30 | SYR4 | 2017 |
| Nitrate | 1040 µg/L 10% of the EPA limit 10000 µg/L | 16/16 | SYR4 | 2012–2019 |
| Lead | 0.0130 mg/L 87% of the EPA limit 0.0150 mg/L | 14/14 | LCR | 2023 |
| Fluoride | 892.15 µg/L 22% of the EPA limit 4000 µg/L
worst single sample: 909 µg/L | 2/2 | SYR4 | 2014–2017 |
| Bromodichloromethane | 2.9 µg/L No EPA limit set | 1/1 | SYR4 | 2014 |
| Chloroform | 2.9 µg/L No EPA limit set | 1/1 | SYR4 | 2014 |
| Combined Uranium | 1.0701 µg/L 3.6% of the EPA limit 30 µg/L | 1/1 | SYR4 | 2017 |
| Dibromochloromethane | 1.9 µg/L No EPA limit set | 1/1 | SYR4 | 2014 |
| Gross Alpha, Excl. Radon And U | 3.2 pCi/L 21% of the EPA limit 15 pCi/L | 1/2 | SYR4 | 2017 |
90 contaminants tested, none detected
Utility contact
Frequently asked questions about Washington Water Works
Is Washington Water Works tap water safe to drink?
EPA monitoring detected 12 contaminants in Washington Water Works'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 Washington Water Works's water?
EPA monitoring detected TTHM, Total Haloacetic Acids (HAA5), Copper, Lead, Nitrate, and others. The full list with the level and data source for each is above.
How many people does Washington Water Works serve?
Washington Water Works reports serving 13,690 people in Indiana, per its EPA record.
Has Washington Water Works had any water quality violations?
The EPA has 22 violations on file for Washington Water Works, of which 13 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.