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 |
|---|---|---|---|
| RPT | Monitoring | Unaddressed | 2025-07-02 |
| RPT | Monitoring | Unaddressed | 2025-07-02 |
| MR | Monitoring | Archived | 1994-09-01 → 1994-09-30 |
| MR | Monitoring | Archived | 1994-09-01 → 1994-09-30 |
| MR | Monitoring | Archived | 1991-06-01 → 1991-06-30 |
| MR | Monitoring | Archived | 1991-06-01 → 1991-06-30 |
| MR | Monitoring | Archived | 1977-06-30 → 1981-06-29 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Copper | 345.85 µg/L 27% of the EPA limit 1300 µg/L
worst single sample: 599 µg/L | 72/74 | SYR4 | 2012–2019 |
| Lead | 0.0031 mg/L 20% of the EPA limit 0.0150 mg/L | 19/19 | LCR | 2025 |
| Lead | 28.45 µg/L 190% of the EPA limit, at the 95th percentile of samples — 15 µg/L
worst single sample: 40.7 µg/L | 11/76 | SYR4 | 2012–2019 |
| Bromodichloromethane | 8.465 µg/L No EPA limit set
worst single sample: 9.9 µg/L | 8/8 | SYR4 | 2013–2019 |
| Chloroform | 10.98 µg/L No EPA limit set
worst single sample: 13.5 µg/L | 8/8 | SYR4 | 2013–2019 |
| Dibromochloromethane | 5.197 µg/L No EPA limit set
worst single sample: 5.4 µg/L | 8/8 | SYR4 | 2013–2019 |
| Dichloroacetic Acid | 7.8445 µg/L No EPA limit set
worst single sample: 9.5 µg/L | 8/8 | SYR4 | 2013–2019 |
| TTHM | 25.22 µg/L 32% of the EPA limit 80 µg/L
worst single sample: 29.7 µg/L | 8/8 | SYR4 | 2013–2019 |
| Total Haloacetic Acids (HAA5) | 13.852 µg/L 23% of the EPA limit 60 µg/L
worst single sample: 15.7 µg/L | 8/8 | SYR4 | 2013–2019 |
| Bromoform | 1.228 µg/L No EPA limit set
worst single sample: 1.31 µg/L | 5/8 | SYR4 | 2013–2019 |
| Monobromoacetic Acid | 2.986 µg/L No EPA limit set
worst single sample: 3.3 µg/L | 5/8 | SYR4 | 2013–2019 |
| Trichloroacetic Acid | 3.276 µg/L No EPA limit set
worst single sample: 3.32 µg/L | 5/8 | SYR4 | 2013–2019 |
| Dibromoacetic Acid | 2.86 µg/L No EPA limit set
worst single sample: 3.1 µg/L | 4/8 | SYR4 | 2013–2019 |
1 contaminants tested, none detected
Utility contact
Frequently asked questions about Dallas City
Is Dallas City tap water safe to drink?
EPA monitoring detected 13 contaminants in Dallas City'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 Dallas City's water?
EPA monitoring detected Copper, Lead, Lead, Bromodichloromethane, Chloroform, and others. The full list with the level and data source for each is above.
How many people does Dallas City serve?
Dallas City reports serving 788 people in Illinois, per its EPA record.
Has Dallas City had any water quality violations?
The EPA has 7 violations on file for Dallas City, of which 0 are health-based (a contaminant limit or required treatment was breached) and 2 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.