What was found in Harrisburg'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 | 1800 µg/L 18% of the EPA limit 10000 µg/L Highest in the city: ROCKY RIVER PLANTATION S/D · 300 people · 2019 | 3/11 | SYR4 |
| Nitrate-Nitrite | 1200 µg/L 12% of the EPA limit 10000 µg/L Highest in the city: MIDDLETON S/D · 218 people · 2015 | 2/11 | SYR4 |
| Copper | 228 µg/L 18% of the EPA limit 1300 µg/L Main supplier: HARRISBURG, TOWN OF · 20,549 people · 2018
Highest in the city: 748.25 µg/L — ROCKY RIVER PLANTATION S/D · 300 people · 2019 | 10/11 | SYR4 |
| Fluoride | 633 µg/L 16% of the EPA limit 4000 µg/L Main supplier: HARRISBURG, TOWN OF · 20,549 people · 2017 | 8/11 | SYR4 |
| TTHM | 103.505 µg/L 129% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: HARRISBURG, TOWN OF · 20,549 people · 2019 | 10/11 | SYR4 |
| Chloroform | 86.65 µg/L No EPA limit set Main supplier: HARRISBURG, TOWN OF · 20,549 people · 2019 | 6/11 | SYR4 |
| Barium | 35.3 µg/L 1.8% of the EPA limit 2000 µg/L Main supplier: HARRISBURG, TOWN OF · 20,549 people · 2017
Highest in the city: 73 µg/L — ROCKY RIVER PLANTATION S/D · 300 people · 2019 | 5/11 | SYR4 |
| Total Haloacetic Acids (HAA5) | 62.2 µg/L 104% of the EPA limit, at the 95th percentile of samples — 60 µg/L Main supplier: HARRISBURG, TOWN OF · 20,549 people · 2019 | 7/11 | SYR4 |
| Dichloroacetic Acid | 32.5 µg/L No EPA limit set Main supplier: HARRISBURG, TOWN OF · 20,549 people · 2019 | 4/11 | SYR4 |
| Dibromochloromethane | 2.79 µg/L No EPA limit set Main supplier: HARRISBURG, TOWN OF · 20,549 people · 2019
Highest in the city: 30.83 µg/L — BROOKDALE DEVELOPMENT · 81 people · 2019 | 8/11 | SYR4 |
| Trichloroacetic Acid | 29.23 µg/L No EPA limit set Main supplier: HARRISBURG, TOWN OF · 20,549 people · 2019 | 4/11 | SYR4 |
| Bromodichloromethane | 15 µg/L No EPA limit set Main supplier: HARRISBURG, TOWN OF · 20,549 people · 2019
Highest in the city: 26.21 µg/L — BROOKDALE DEVELOPMENT · 81 people · 2019 | 6/11 | SYR4 |
| Gross Beta Particle Activity | 5.7 pCi/L No EPA limit set Main supplier: HARRISBURG, TOWN OF · 20,549 people · 2014
Highest in the city: 24.55 pCi/L — ROCKY RIVER PLANTATION S/D · 300 people · 2019 | 3/11 | SYR4 |
| Dibromoacetic Acid | 20.605 µg/L No EPA limit set Main supplier: HARRISBURG, TOWN OF · 20,549 people · 2019 | 6/11 | SYR4 |
| Gross Alpha, Excl. Radon And U | 14.855 pCi/L 99% of the EPA limit 15 pCi/L Highest in the city: ROCKY RIVER PLANTATION S/D · 300 people · 2019 | 2/11 | SYR4 |
| Bromoform | 1.24 µg/L No EPA limit set Main supplier: HARRISBURG, TOWN OF · 20,549 people · 2019
Highest in the city: 13.78 µg/L — BROOKDALE DEVELOPMENT · 81 people · 2019 | 8/11 | SYR4 |
| Lead | 12.6 µg/L 84% of the EPA limit 15 µg/L Main supplier: HARRISBURG, TOWN OF · 20,549 people · 2018 | 9/11 | SYR4 |
| Combined Radium (-226 And -228) | 10.41 pCi/L 208% of the EPA limit, at the 95th percentile of samples — 5 pCi/L Highest in the city: ROCKY RIVER PLANTATION S/D · 300 people · 2019 | 3/11 | SYR4 |
| Monochloroacetic Acid | 3.925 µg/L No EPA limit set Main supplier: HARRISBURG, TOWN OF · 20,549 people · 2019
Highest in the city: 9.647 µg/L — BROOKDALE DEVELOPMENT · 81 people · 2019 | 3/11 | SYR4 |
| Monobromoacetic Acid | 3.07 µg/L No EPA limit set Main supplier: HARRISBURG, TOWN OF · 20,549 people · 2019
Highest in the city: 3.45 µg/L — PROVIDENCE MANOR S/D · 379 people · 2019 | 2/11 | SYR4 |
| Combined Uranium | 3.427 µg/L 11% of the EPA limit 30 µg/L Highest in the city: ROCKY RIVER PLANTATION S/D · 300 people · 2019 | 2/11 | SYR4 |
| Arsenic | 2.525 µg/L 25% of the EPA limit 10 µg/L Main supplier: HARRISBURG, TOWN OF · 20,549 people · 2017 | 3/11 | SYR4 |
| Carbon Tetrachloride | 2.3 µg/L 46% of the EPA limit 5 µg/L Highest in the city: ROCKY RIVER PLANTATION S/D · 300 people · 2019 | 1/11 | SYR4 |
| Selenium | 1.3 µg/L 2.6% of the EPA limit 50 µg/L Main supplier: HARRISBURG, TOWN OF · 20,549 people · 2017 | 1/11 | SYR4 |
| Antimony, Total | 1.1 µg/L 18% of the EPA limit 6 µg/L Main supplier: HARRISBURG, TOWN OF · 20,549 people · 2017 | 1/11 | SYR4 |
| PFOS | 0.0103 µg/L No EPA limit set Main supplier: HARRISBURG, TOWN OF · 20,549 people · 2025 | 1/11 | UCMR-5 |
| PFHXS | 0.0049 µg/L No EPA limit set Main supplier: HARRISBURG, TOWN OF · 20,549 people · 2025 | 1/11 | UCMR-5 |
| PFBS | 0.0042 µg/L No EPA limit set Main supplier: HARRISBURG, TOWN OF · 20,549 people · 2025 | 1/11 | UCMR-5 |
| Pfpea | 0.0041 µg/L No EPA limit set Main supplier: HARRISBURG, TOWN OF · 20,549 people · 2025 | 1/11 | UCMR-5 |
| Pfhxa | 0.0033 µg/L No EPA limit set Main supplier: HARRISBURG, TOWN OF · 20,549 people · 2025 | 1/11 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: HARRISBURG, TOWN OF · 20,549 people · 2025
Highest in the city: 0.0020 mg/L — ROCKY RIVER PLANTATION S/D · 300 people · 2025 | 11/11 | LCR |
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 Harrisburg
| Supplier | Population served |
|---|---|
| HARRISBURG, TOWN OF | 20,549 |
| STALLINGS GLEN S/D | 544 |
| SILVER MAPLES ESTATES MHP | 463 |
| PROVIDENCE MANOR S/D | 379 |
| ROCKY RIVER PLANTATION S/D | 300 |
| OAK ESTATES S/D | 259 |
| MIDDLETON S/D | 218 |
| STONES THROW MHP | 183 |
| WEATHERSTONE S/D | 120 |
| BROOKDALE DEVELOPMENT | 81 |
| MCMILLIAN ACRES S/D | 71 |
Frequently asked questions about Harrisburg tap water
Is Harrisburg tap water safe to drink?
EPA testing detected 31 contaminants in the water serving Harrisburg. 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 Harrisburg?
11 public water suppliers report drinking-water monitoring for Harrisburg, North Carolina to the EPA. Each is listed above with its population served.
What contaminants are in Harrisburg's water?
The contaminants EPA monitoring detected in Harrisburg include Nitrate, Nitrate-Nitrite, Copper, Fluoride, 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.