What was found in Rocky Mount's water
The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate | 8182.5 µg/L 82% of the EPA limit 10000 µg/L Highest in the city: WINSTEAD MOBILE TERRACE · 189 people · 2019 | 1/2 | SYR4 |
| Nitrate-Nitrite | 6730 µg/L 67% of the EPA limit 10000 µg/L Highest in the city: WINSTEAD MOBILE TERRACE · 189 people · 2018 | 1/2 | SYR4 |
| Fluoride | 813.65 µg/L 20% of the EPA limit 4000 µg/L Main supplier: ROCKY MOUNT, CITY OF · 55,891 people · 2019 | 1/2 | SYR4 |
| Copper | 148.25 µg/L 11% of the EPA limit 1300 µg/L Main supplier: ROCKY MOUNT, CITY OF · 55,891 people · 2017
Highest in the city: 471.7 µg/L — WINSTEAD MOBILE TERRACE · 189 people · 2017 | 2/2 | SYR4 |
| TTHM | 93.14 µg/L 116% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: ROCKY MOUNT, CITY OF · 55,891 people · 2019 | 2/2 | SYR4 |
| Chloroform | 71 µg/L No EPA limit set Main supplier: ROCKY MOUNT, CITY OF · 55,891 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 56.15 µg/L 94% of the EPA limit 60 µg/L Main supplier: ROCKY MOUNT, CITY OF · 55,891 people · 2019 | 2/2 | SYR4 |
| Barium | 34 µg/L 1.7% of the EPA limit 2000 µg/L Main supplier: ROCKY MOUNT, CITY OF · 55,891 people · 2019 | 1/2 | SYR4 |
| Dichloroacetic Acid | 28.35 µg/L No EPA limit set Main supplier: ROCKY MOUNT, CITY OF · 55,891 people · 2019 | 2/2 | SYR4 |
| Trichloroacetic Acid | 26 µg/L No EPA limit set Main supplier: ROCKY MOUNT, CITY OF · 55,891 people · 2019 | 2/2 | SYR4 |
| Bromodichloromethane | 14 µg/L No EPA limit set Main supplier: ROCKY MOUNT, CITY OF · 55,891 people · 2019 | 2/2 | SYR4 |
| Monochloroacetic Acid | 13.715 µg/L No EPA limit set Main supplier: ROCKY MOUNT, CITY OF · 55,891 people · 2019 | 1/2 | SYR4 |
| Monobromoacetic Acid | 8.88 µg/L No EPA limit set Main supplier: ROCKY MOUNT, CITY OF · 55,891 people · 2019 | 1/2 | SYR4 |
| Lead | 5.9 µg/L 39% of the EPA limit 15 µg/L Main supplier: ROCKY MOUNT, CITY OF · 55,891 people · 2017
Highest in the city: 8.8 µg/L — WINSTEAD MOBILE TERRACE · 189 people · 2017 | 2/2 | SYR4 |
| Gross Beta Particle Activity | 4.89 pCi/L No EPA limit set Main supplier: ROCKY MOUNT, CITY OF · 55,891 people · 2013 | 1/2 | SYR4 |
| Dibromochloromethane | 4.54 µg/L No EPA limit set Main supplier: ROCKY MOUNT, CITY OF · 55,891 people · 2019 | 2/2 | SYR4 |
| Dibromoacetic Acid | 4.35 µg/L No EPA limit set Main supplier: ROCKY MOUNT, CITY OF · 55,891 people · 2019 | 2/2 | SYR4 |
| Gross Alpha, Excl. Radon And U | 3.94 pCi/L 26% of the EPA limit 15 pCi/L Main supplier: ROCKY MOUNT, CITY OF · 55,891 people · 2013 | 1/2 | SYR4 |
| Xylenes, Total | 2.925 µg/L 0% of the EPA limit 10000 µg/L Highest in the city: WINSTEAD MOBILE TERRACE · 189 people · 2019 | 1/2 | SYR4 |
| Combined Radium (-226 And -228) | 0.2700 pCi/L 5.4% of the EPA limit 5 pCi/L Main supplier: ROCKY MOUNT, CITY OF · 55,891 people · 2019
Highest in the city: 1.6 pCi/L — WINSTEAD MOBILE TERRACE · 189 people · 2016 | 2/2 | SYR4 |
| Bromoform | 1.385 µg/L No EPA limit set Main supplier: ROCKY MOUNT, CITY OF · 55,891 people · 2019 | 1/2 | SYR4 |
| Atrazine | 0.2000 µg/L 6.7% of the EPA limit 3 µg/L Main supplier: ROCKY MOUNT, CITY OF · 55,891 people · 2019 | 1/2 | SYR4 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: ROCKY MOUNT, CITY OF · 55,891 people · 2025
Highest in the city: 0.0180 mg/L — WINSTEAD MOBILE TERRACE · 189 people · 2025 | 2/2 | LCR |
| PFOS | 0.0094 µg/L No EPA limit set Main supplier: ROCKY MOUNT, CITY OF · 55,891 people · 2025 | 1/2 | UCMR-5 |
| PFOA | 0.0086 µg/L No EPA limit set Main supplier: ROCKY MOUNT, CITY OF · 55,891 people · 2025 | 1/2 | UCMR-5 |
Each bar shows the measured level as a share of the EPA limit: green is
well under, amber is close to it, red is over. For lead and copper the
limit applies to exactly the 90th-percentile figure shown, so red there
means a real exceedance. For everything else the limit applies to a
running annual average while the figure is the 95th percentile of the
system's samples — over 100% is worth reading, but is not by itself a
violation.
Formal violations are listed separately.
These are the utilities' own EPA-reported results, not a city-wide
average. A detection means the lab measured the
substance — it isn't the same as exceeding a legal limit. Hover a source
tag to see the EPA program and years behind each figure.
Water suppliers serving Rocky Mount
| Supplier | Population served |
|---|---|
| ROCKY MOUNT, CITY OF | 55,891 |
| WINSTEAD MOBILE TERRACE | 189 |
Frequently asked questions about Rocky Mount tap water
Is Rocky Mount tap water safe to drink?
EPA testing detected 25 contaminants in the water serving Rocky Mount. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.
How many water suppliers serve Rocky Mount?
2 public water suppliers report drinking-water monitoring for Rocky Mount, North Carolina to the EPA. Each is listed above with its population served.
What contaminants are in Rocky Mount's water?
The contaminants EPA monitoring detected in Rocky Mount include Nitrate, Nitrate-Nitrite, Fluoride, Copper, TTHM. The full list, with the level at the main supplier and the data source, is in the table above.
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.