What was found in ZIP 28379
The level at this ZIP's main supplier, the highest level anywhere in it, the EPA limit for each, and where the 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 | 2/3 | SYR4 |
| Nitrate-Nitrite | 1265 µg/L 13% of the EPA limit 10000 µg/L Main supplier: RICHMOND COUNTY WATER SYSTEM · 22,578 people · 2019 | 2/3 | SYR4 |
| Fluoride | 708.3 µg/L 18% of the EPA limit 4000 µg/L Main supplier: RICHMOND COUNTY WATER SYSTEM · 22,578 people · 2019
Highest in the ZIP: 764 µg/L — HAMLET WATER SYSTEM · 10,635 people · 2019 | 3/3 | SYR4 |
| Copper | 666.6 µg/L 51% of the EPA limit 1300 µg/L Main supplier: RICHMOND COUNTY WATER SYSTEM · 22,578 people · 2018 | 3/3 | 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
Highest in the ZIP: 118.06 µg/L — HAMLET WATER SYSTEM · 10,635 people · 2019 | 3/3 | SYR4 |
| Chloroform | 86 µg/L No EPA limit set Main supplier: RICHMOND COUNTY WATER SYSTEM · 22,578 people · 2019
Highest in the ZIP: 96.875 µg/L — HAMLET WATER SYSTEM · 10,635 people · 2019 | 3/3 | 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 | 3/3 | SYR4 |
| Nitrite | 78 µg/L 7.8% of the EPA limit 1000 µg/L Main supplier: RICHMOND COUNTY WATER SYSTEM · 22,578 people · 2019 | 1/3 | SYR4 |
| Trichloroacetic Acid | 44 µg/L No EPA limit set Main supplier: RICHMOND COUNTY WATER SYSTEM · 22,578 people · 2019 | 3/3 | SYR4 |
| Dichloroacetic Acid | 36.2 µg/L No EPA limit set Main supplier: RICHMOND COUNTY WATER SYSTEM · 22,578 people · 2019 | 3/3 | SYR4 |
| Monochloroacetic Acid | 26.415 µg/L No EPA limit set Main supplier: RICHMOND COUNTY WATER SYSTEM · 22,578 people · 2019 | 3/3 | 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 | 2/3 | 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 ZIP: 17.253 µg/L — ROCKINGHAM, CITY OF · 12,510 people · 2019 | 3/3 | SYR4 |
| Bromodichloromethane | 15 µg/L No EPA limit set Main supplier: RICHMOND COUNTY WATER SYSTEM · 22,578 people · 2019
Highest in the ZIP: 16.85 µg/L — HAMLET WATER SYSTEM · 10,635 people · 2019 | 3/3 | SYR4 |
| Lithium | 12 µg/L No EPA limit set Main supplier: RICHMOND COUNTY WATER SYSTEM · 22,578 people · 2024 | 1/3 | UCMR-5 |
| Monobromoacetic Acid | 11 µg/L No EPA limit set Main supplier: RICHMOND COUNTY WATER SYSTEM · 22,578 people · 2019 | 2/3 | SYR4 |
| Dibromochloromethane | 3 µg/L No EPA limit set Main supplier: RICHMOND COUNTY WATER SYSTEM · 22,578 people · 2019
Highest in the ZIP: 3.13 µg/L — HAMLET WATER SYSTEM · 10,635 people · 2019 | 3/3 | SYR4 |
| Dibromoacetic Acid | 2.9 µg/L No EPA limit set Main supplier: RICHMOND COUNTY WATER SYSTEM · 22,578 people · 2019 | 1/3 | 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 | 2/3 | SYR4 |
| Dichloromethane | 1.92905 µg/L 39% of the EPA limit 5 µg/L Highest in the ZIP: ROCKINGHAM, CITY OF · 12,510 people · 2019 | 1/3 | SYR4 |
| Bromoform | 1.6 µg/L No EPA limit set Highest in the ZIP: HAMLET WATER SYSTEM · 10,635 people · 2019 | 1/3 | SYR4 |
| Gross Alpha, Excl. Radon And U | 1.2 pCi/L 8% of the EPA limit 15 pCi/L Highest in the ZIP: HAMLET WATER SYSTEM · 10,635 people · 2016 | 1/3 | SYR4 |
| Carbon Tetrachloride | 1.1 µg/L 22% of the EPA limit 5 µg/L Highest in the ZIP: ROCKINGHAM, CITY OF · 12,510 people · 2019 | 1/3 | SYR4 |
| Combined Radium (-226 And -228) | 0.8000 pCi/L 16% of the EPA limit 5 pCi/L Highest in the ZIP: ROCKINGHAM, CITY OF · 12,510 people · 2014 | 1/3 | SYR4 |
| PFOS | 0.0047 µg/L No EPA limit set Main supplier: RICHMOND COUNTY WATER SYSTEM · 22,578 people · 2024
Highest in the ZIP: 0.0069 µg/L — HAMLET WATER SYSTEM · 10,635 people · 2025 | 3/3 | UCMR-5 |
| 6:2 Fts | 0.0066 µg/L No EPA limit set Main supplier: RICHMOND COUNTY WATER SYSTEM · 22,578 people · 2024 | 1/3 | UCMR-5 |
| PFOA | 0.0057 µg/L No EPA limit set Highest in the ZIP: HAMLET WATER SYSTEM · 10,635 people · 2025 | 2/3 | UCMR-5 |
| Pfpea | 0.0041 µg/L No EPA limit set Main supplier: RICHMOND COUNTY WATER SYSTEM · 22,578 people · 2024
Highest in the ZIP: 0.0044 µg/L — ROCKINGHAM, CITY OF · 12,510 people · 2023 | 2/3 | UCMR-5 |
| PFHXS | 0.0038 µg/L No EPA limit set Highest in the ZIP: HAMLET WATER SYSTEM · 10,635 people · 2025 | 2/3 | UCMR-5 |
| Pfhxa | 0.0034 µg/L No EPA limit set Main supplier: RICHMOND COUNTY WATER SYSTEM · 22,578 people · 2024
Highest in the ZIP: 0.0037 µg/L — ROCKINGHAM, CITY OF · 12,510 people · 2023 | 2/3 | UCMR-5 |
| PFBS | 0.0031 µg/L No EPA limit set Main supplier: RICHMOND COUNTY WATER SYSTEM · 22,578 people · 2024 | 1/3 | 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 | 3/3 | 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.
Water suppliers serving ZIP 28379
| Supplier | State | Population served |
|---|---|---|
| RICHMOND COUNTY WATER SYSTEM | NC | 22,578 |
| ROCKINGHAM, CITY OF | NC | 12,510 |
| HAMLET WATER SYSTEM | NC | 10,635 |
Frequently asked questions about ZIP 28379 tap water
Is the tap water in ZIP 28379 safe to drink?
EPA testing detected 32 contaminants across the water suppliers serving ZIP 28379. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and your utility's annual Consumer Confidence Report for the official status.
Which water suppliers serve ZIP 28379?
3 public water suppliers report EPA drinking-water monitoring for ZIP 28379. Each is listed above with its population served.
What contaminants are in ZIP 28379's water?
EPA monitoring detected Nitrate, Nitrate-Nitrite, Fluoride, Copper, TTHM, and others across this ZIP's suppliers. The full list with levels and sources is above.