Compliance record
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Bromodichloromethane | 9.378 µg/L No EPA limit set
worst single sample: 10.7 µg/L | 27/27 | SYR4 | 2012–2019 |
| Chloroform | 36.83 µg/L No EPA limit set
worst single sample: 38.9 µg/L | 27/27 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 28.66 µg/L No EPA limit set
worst single sample: 30 µg/L | 27/27 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 59.21 µg/L 99% of the EPA limit 60 µg/L
worst single sample: 62.2 µg/L | 27/27 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 29.45 µg/L No EPA limit set
worst single sample: 32.2 µg/L | 26/27 | SYR4 | 2012–2019 |
| Dibromochloromethane | 2.006 µg/L No EPA limit set
worst single sample: 2.25 µg/L | 23/27 | SYR4 | 2012–2019 |
| TTHM | 47.09 µg/L 59% of the EPA limit 80 µg/L
worst single sample: 50.18 µg/L | 23/23 | SYR4 | 2012–2019 |
| Copper | 91 µg/L 7% of the EPA limit 1300 µg/L
worst single sample: 100 µg/L | 10/15 | SYR4 | 2012–2018 |
| Lead | 0.0014 mg/L 9.3% of the EPA limit 0.0150 mg/L | 10/10 | LCR | 2024 |
| Fluoride | 126.5 µg/L 3.2% of the EPA limit 4000 µg/L
worst single sample: 130 µg/L | 8/10 | SYR4 | 2012–2019 |
| Monochloroacetic Acid | 2.995 µg/L No EPA limit set
worst single sample: 3.1 µg/L | 8/27 | SYR4 | 2012–2019 |
| Lead | 3.79 µg/L 25% of the EPA limit 15 µg/L
worst single sample: 4.3 µg/L | 7/15 | SYR4 | 2012–2018 |
| Dibromoacetic Acid | 2.4 µg/L No EPA limit set
worst single sample: 2.7 µg/L | 6/27 | SYR4 | 2012–2019 |
| Nitrate | 1109.3 µg/L 11% of the EPA limit 10000 µg/L | 4/20 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 1073.84 µg/L 11% of the EPA limit 10000 µg/L
worst single sample: 1109.3 µg/L | 2/10 | SYR4 | 2012–2019 |
| Xylenes, Total | 1.567 µg/L 0% of the EPA limit 10000 µg/L
worst single sample: 1.61 µg/L | 2/12 | SYR4 | 2012–2019 |
| Combined Radium (-226 And -228) | 0.3000 pCi/L 6% of the EPA limit 5 pCi/L | 1/1 | SYR4 | 2013 |
48 contaminants tested, none detected
Utility contact
Frequently asked questions about Mallard Lakes
Is Mallard Lakes tap water safe to drink?
EPA monitoring detected 17 contaminants in Mallard Lakes'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 Mallard Lakes's water?
EPA monitoring detected Bromodichloromethane, Chloroform, Dichloroacetic Acid, Total Haloacetic Acids (HAA5), Trichloroacetic Acid, and others. The full list with the level and data source for each is above.
How many people does Mallard Lakes serve?
Mallard Lakes reports serving 1,500 people in Delaware, per its EPA record.
Has Mallard Lakes had any water quality violations?
The EPA has no formal drinking-water violations on file for Mallard Lakes.
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.