What was found in Rockingham'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 | 1300 µg/L 13% of the EPA limit 10000 µg/L Main supplier: RICHMOND COUNTY WATER SYSTEM · 22,578 people · 2019 | 1/2 | SYR4 |
| Nitrate-Nitrite | 1265 µg/L 13% of the EPA limit 10000 µg/L Main supplier: RICHMOND COUNTY WATER SYSTEM · 22,578 people · 2019 | 1/2 | SYR4 |
| Fluoride | 708.3 µg/L 18% of the EPA limit 4000 µg/L Main supplier: RICHMOND COUNTY WATER SYSTEM · 22,578 people · 2019 | 2/2 | SYR4 |
| Copper | 666.6 µg/L 51% of the EPA limit 1300 µg/L Main supplier: RICHMOND COUNTY WATER SYSTEM · 22,578 people · 2018 | 2/2 | SYR4 |
| TTHM | 107.45 µg/L 134% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: RICHMOND COUNTY WATER SYSTEM · 22,578 people · 2019 | 2/2 | SYR4 |
| Chloroform | 86 µg/L No EPA limit set Main supplier: RICHMOND COUNTY WATER SYSTEM · 22,578 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 81.45 µg/L 136% of the EPA limit, at the 95th percentile of samples — 60 µg/L Main supplier: RICHMOND COUNTY WATER SYSTEM · 22,578 people · 2019 | 2/2 | SYR4 |
| Nitrite | 78 µg/L 7.8% of the EPA limit 1000 µg/L Main supplier: RICHMOND COUNTY WATER SYSTEM · 22,578 people · 2019 | 1/2 | SYR4 |
| Trichloroacetic Acid | 44 µg/L No EPA limit set Main supplier: RICHMOND COUNTY WATER SYSTEM · 22,578 people · 2019 | 2/2 | SYR4 |
| Dichloroacetic Acid | 36.2 µg/L No EPA limit set Main supplier: RICHMOND COUNTY WATER SYSTEM · 22,578 people · 2019 | 2/2 | SYR4 |
| Monochloroacetic Acid | 26.415 µg/L No EPA limit set Main supplier: RICHMOND COUNTY WATER SYSTEM · 22,578 people · 2019 | 2/2 | SYR4 |
| Barium | 17.75 µg/L 0.9% of the EPA limit 2000 µg/L Main supplier: RICHMOND COUNTY WATER SYSTEM · 22,578 people · 2019 | 1/2 | SYR4 |
| Lead | 6.86 µg/L 46% of the EPA limit 15 µg/L Main supplier: RICHMOND COUNTY WATER SYSTEM · 22,578 people · 2018
Highest in the city: 17.253 µg/L — ROCKINGHAM, CITY OF · 12,510 people · 2019 | 2/2 | SYR4 |
| Bromodichloromethane | 15 µg/L No EPA limit set Main supplier: RICHMOND COUNTY WATER SYSTEM · 22,578 people · 2019 | 2/2 | SYR4 |
| Lithium | 12 µg/L No EPA limit set Main supplier: RICHMOND COUNTY WATER SYSTEM · 22,578 people · 2024 | 1/2 | UCMR-5 |
| Monobromoacetic Acid | 11 µg/L No EPA limit set Main supplier: RICHMOND COUNTY WATER SYSTEM · 22,578 people · 2019 | 2/2 | SYR4 |
| Dibromochloromethane | 3 µg/L No EPA limit set Main supplier: RICHMOND COUNTY WATER SYSTEM · 22,578 people · 2019 | 2/2 | SYR4 |
| Dibromoacetic Acid | 2.9 µg/L No EPA limit set Main supplier: RICHMOND COUNTY WATER SYSTEM · 22,578 people · 2019 | 1/2 | SYR4 |
| Dalapon | 2.65 µg/L 1.3% of the EPA limit 200 µg/L Main supplier: RICHMOND COUNTY WATER SYSTEM · 22,578 people · 2019 | 1/2 | SYR4 |
| Dichloromethane | 1.92905 µg/L 39% of the EPA limit 5 µg/L Highest in the city: ROCKINGHAM, CITY OF · 12,510 people · 2019 | 1/2 | SYR4 |
| Carbon Tetrachloride | 1.1 µg/L 22% of the EPA limit 5 µg/L Highest in the city: ROCKINGHAM, CITY OF · 12,510 people · 2019 | 1/2 | SYR4 |
| Combined Radium (-226 And -228) | 0.8000 pCi/L 16% of the EPA limit 5 pCi/L Highest in the city: ROCKINGHAM, CITY OF · 12,510 people · 2014 | 1/2 | SYR4 |
| 6:2 Fts | 0.0066 µg/L No EPA limit set Main supplier: RICHMOND COUNTY WATER SYSTEM · 22,578 people · 2024 | 1/2 | UCMR-5 |
| PFOS | 0.0047 µg/L No EPA limit set Main supplier: RICHMOND COUNTY WATER SYSTEM · 22,578 people · 2024
Highest in the city: 0.0049 µg/L — ROCKINGHAM, CITY OF · 12,510 people · 2023 | 2/2 | UCMR-5 |
| PFOA | 0.0044 µg/L No EPA limit set Highest in the city: ROCKINGHAM, CITY OF · 12,510 people · 2023 | 1/2 | UCMR-5 |
| Pfpea | 0.0041 µg/L No EPA limit set Main supplier: RICHMOND COUNTY WATER SYSTEM · 22,578 people · 2024
Highest in the city: 0.0044 µg/L — ROCKINGHAM, CITY OF · 12,510 people · 2023 | 2/2 | UCMR-5 |
| Pfhxa | 0.0034 µg/L No EPA limit set Main supplier: RICHMOND COUNTY WATER SYSTEM · 22,578 people · 2024
Highest in the city: 0.0037 µg/L — ROCKINGHAM, CITY OF · 12,510 people · 2023 | 2/2 | UCMR-5 |
| PFHXS | 0.0032 µg/L No EPA limit set Highest in the city: ROCKINGHAM, CITY OF · 12,510 people · 2023 | 1/2 | UCMR-5 |
| PFBS | 0.0031 µg/L No EPA limit set Main supplier: RICHMOND COUNTY WATER SYSTEM · 22,578 people · 2024 | 1/2 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: RICHMOND COUNTY WATER SYSTEM · 22,578 people · 2025 | 2/2 | 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 Rockingham
| Supplier | Population served |
|---|---|
| RICHMOND COUNTY WATER SYSTEM | 22,578 |
| ROCKINGHAM, CITY OF | 12,510 |
Frequently asked questions about Rockingham tap water
Is Rockingham tap water safe to drink?
EPA testing detected 30 contaminants in the water serving Rockingham. 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 Rockingham?
2 public water suppliers report drinking-water monitoring for Rockingham, North Carolina to the EPA. Each is listed above with its population served.
What contaminants are in Rockingham's water?
The contaminants EPA monitoring detected in Rockingham 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.