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 |
|---|---|---|---|
| MR | Monitoring | Resolved | 2020-01-01 → 2022-12-31 |
| MR | Monitoring | Resolved | 2020-01-01 → 2022-12-31 |
| MR | Monitoring | Resolved | 2020-01-01 → 2022-12-31 |
| MR | Monitoring | Resolved | 2020-01-01 → 2022-12-31 |
| MR | Monitoring | Resolved | 2008-04-01 |
| MR | Monitoring | Resolved | 2008-04-01 |
| MR | Monitoring | Resolved | 1998-11-01 → 1998-12-31 |
| MR | Monitoring | Resolved | 1998-11-01 → 1998-12-31 |
| MR | Monitoring | Resolved | 1995-01-01 → 1995-12-31 |
| MR | Monitoring | Resolved | 1995-01-01 → 1995-12-31 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate | 752.65 µg/L 7.5% of the EPA limit 10000 µg/L
worst single sample: 1000 µg/L | 38/92 | SYR4 | 2012–2019 |
| Lead | 0.0023 mg/L 15% of the EPA limit 0.0150 mg/L | 13/13 | LCR | 2024 |
| Chloroform | 17.715 µg/L No EPA limit set
worst single sample: 19.13 µg/L | 11/11 | SYR4 | 2012–2019 |
| Bromodichloromethane | 10.544 µg/L No EPA limit set
worst single sample: 11.5 µg/L | 9/10 | SYR4 | 2012–2019 |
| TTHM | 36.795 µg/L 46% of the EPA limit 80 µg/L
worst single sample: 37.6 µg/L | 8/8 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 14.4605 µg/L 24% of the EPA limit 60 µg/L
worst single sample: 14.87 µg/L | 8/8 | SYR4 | 2012–2019 |
| Dibromochloromethane | 4.256 µg/L No EPA limit set
worst single sample: 4.4 µg/L | 7/9 | SYR4 | 2012–2018 |
| Barium | 8.81 µg/L 0.4% of the EPA limit 2000 µg/L
worst single sample: 8.9 µg/L | 4/8 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 6.5045 µg/L No EPA limit set
worst single sample: 6.62 µg/L | 4/4 | SYR4 | 2012–2015 |
| Fluoride | 172.95 µg/L 4.3% of the EPA limit 4000 µg/L
worst single sample: 180 µg/L | 4/10 | SYR4 | 2012–2019 |
| Cadmium | 4.9 µg/L 98% of the EPA limit 5 µg/L
worst single sample: 5 µg/L | 3/8 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 8.072 µg/L No EPA limit set
worst single sample: 8.14 µg/L | 3/4 | SYR4 | 2012–2015 |
| Chromium | 1 µg/L 1% of the EPA limit 100 µg/L | 2/8 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 1.56 µg/L No EPA limit set | 1/4 | SYR4 | 2012–2015 |
| Gross Beta Particle Activity | 10.4 pCi/L No EPA limit set | 1/2 | SYR4 | 2012–2014 |
| Selenium | 2 µg/L 4% of the EPA limit 50 µg/L | 1/8 | SYR4 | 2012–2019 |
86 contaminants tested, none detected
Utility contact
Frequently asked questions about Mystic Harbour
Is Mystic Harbour tap water safe to drink?
EPA monitoring detected 16 contaminants in Mystic Harbour'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 Mystic Harbour's water?
EPA monitoring detected Nitrate, Lead, Chloroform, Bromodichloromethane, TTHM, and others. The full list with the level and data source for each is above.
How many people does Mystic Harbour serve?
Mystic Harbour reports serving 5,945 people in Maryland, per its EPA record.
Has Mystic Harbour had any water quality violations?
The EPA has 26 violations on file for Mystic Harbour, 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.