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 | Unaddressed | 2024-10-17 |
| Other | Monitoring | Resolved | 2025-07-01 |
| MR | Monitoring | Addressed | 2025-01-01 |
| MR | Monitoring | Addressed | 2025-01-01 |
| RPT | Monitoring | Unaddressed | 2024-10-17 |
| Other | Monitoring | Addressed | 2024-07-01 |
| Other | Monitoring | Addressed | 2024-07-01 |
| MR | Monitoring | Resolved | 2022-01-01 |
| MR | Monitoring | Resolved | 2022-01-01 |
| MR | Monitoring | Resolved | 2022-01-01 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate | 2570 µg/L 26% of the EPA limit 10000 µg/L | 36/40 | SYR4 | 2012–2019 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 10/10 | LCR | 2025 |
| Fluoride | 150 µg/L 3.8% of the EPA limit 4000 µg/L | 4/6 | SYR4 | 2012–2018 |
| Combined Uranium | 1.1026 µg/L 3.7% of the EPA limit 30 µg/L | 2/7 | SYR4 | 2012–2019 |
| Copper | 55 µg/L 4.2% of the EPA limit 1300 µg/L | 1/20 | SYR4 | 2012–2018 |
| Combined Radium (-226 And -228) | 1 pCi/L 20% of the EPA limit 5 pCi/L | 1/8 | SYR4 | 2012–2019 |
| TTHM | 1 µg/L 1.3% of the EPA limit 80 µg/L | 1/3 | SYR4 | 2012–2018 |
| Total Haloacetic Acids (HAA5) | 1.3 µg/L 2.2% of the EPA limit 60 µg/L | 1/5 | SYR4 | 2012–2018 |
67 contaminants tested, none detected
Utility contact
Frequently asked questions about Millstone S/D
Is Millstone S/D tap water safe to drink?
EPA monitoring detected 8 contaminants in Millstone S/D'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 Millstone S/D's water?
EPA monitoring detected Nitrate, Lead, Fluoride, Combined Uranium, Copper, and others. The full list with the level and data source for each is above.
How many people does Millstone S/D serve?
Millstone S/D reports serving 272 people in North Carolina, per its EPA record.
Has Millstone S/D had any water quality violations?
The EPA has 29 violations on file for Millstone S/D, of which 1 is health-based (a contaminant limit or required treatment was breached) and 6 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.