What was found in ZIP 28335
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 | 1100 µg/L 11% of the EPA limit 10000 µg/L Highest in the ZIP: DUNN, CITY OF · 12,442 people · 2019 | 1/2 | SYR4 |
| Nitrate-Nitrite | 1100 µg/L 11% of the EPA limit 10000 µg/L Highest in the ZIP: DUNN, CITY OF · 12,442 people · 2019 | 1/2 | SYR4 |
| Fluoride | 749 µg/L 19% of the EPA limit 4000 µg/L Main supplier: HARNETT REGIONAL WATER · 121,885 people · 2019 | 2/2 | SYR4 |
| Chlorite | 440 µg/L 44% of the EPA limit 1000 µg/L Main supplier: HARNETT REGIONAL WATER · 121,885 people · 2019 | 1/2 | SYR4 |
| Lead | 306.2 µg/L 2041% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: HARNETT REGIONAL WATER · 121,885 people · 2019 | 2/2 | SYR4 |
| Copper | 155.55 µg/L 12% of the EPA limit 1300 µg/L Main supplier: HARNETT REGIONAL WATER · 121,885 people · 2019
Highest in the ZIP: 187.2 µg/L — DUNN, CITY OF · 12,442 people · 2019 | 2/2 | SYR4 |
| Cyanide | 177.5 µg/L 89% of the EPA limit 200 µg/L Highest in the ZIP: DUNN, CITY OF · 12,442 people · 2019 | 1/2 | SYR4 |
| TTHM | 69.985 µg/L 87% of the EPA limit 80 µg/L Main supplier: HARNETT REGIONAL WATER · 121,885 people · 2019
Highest in the ZIP: 81.9 µg/L — DUNN, CITY OF · 12,442 people · 2019 | 2/2 | SYR4 |
| Chloroform | 20 µg/L No EPA limit set Main supplier: HARNETT REGIONAL WATER · 121,885 people · 2019
Highest in the ZIP: 35.15 µg/L — DUNN, CITY OF · 12,442 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 30.765 µg/L 51% of the EPA limit 60 µg/L Main supplier: HARNETT REGIONAL WATER · 121,885 people · 2019
Highest in the ZIP: 31.7 µg/L — DUNN, CITY OF · 12,442 people · 2019 | 2/2 | SYR4 |
| Dibromochloromethane | 28.725 µg/L No EPA limit set Main supplier: HARNETT REGIONAL WATER · 121,885 people · 2019
Highest in the ZIP: 30.15 µg/L — DUNN, CITY OF · 12,442 people · 2019 | 2/2 | SYR4 |
| Bromodichloromethane | 18 µg/L No EPA limit set Main supplier: HARNETT REGIONAL WATER · 121,885 people · 2019
Highest in the ZIP: 27.1 µg/L — DUNN, CITY OF · 12,442 people · 2019 | 2/2 | SYR4 |
| Dichloroacetic Acid | 20.5 µg/L No EPA limit set Main supplier: HARNETT REGIONAL WATER · 121,885 people · 2019
Highest in the ZIP: 23 µg/L — DUNN, CITY OF · 12,442 people · 2019 | 2/2 | SYR4 |
| Bromoform | 20.095 µg/L No EPA limit set Main supplier: HARNETT REGIONAL WATER · 121,885 people · 2019
Highest in the ZIP: 22 µg/L — DUNN, CITY OF · 12,442 people · 2019 | 2/2 | SYR4 |
| Dibromoacetic Acid | 11.5 µg/L No EPA limit set Main supplier: HARNETT REGIONAL WATER · 121,885 people · 2019 | 2/2 | SYR4 |
| Trichloroacetic Acid | 5.9 µg/L No EPA limit set Main supplier: HARNETT REGIONAL WATER · 121,885 people · 2019
Highest in the ZIP: 9.18 µg/L — DUNN, CITY OF · 12,442 people · 2019 | 2/2 | SYR4 |
| Gross Beta Particle Activity | 6.015 pCi/L No EPA limit set Highest in the ZIP: DUNN, CITY OF · 12,442 people · 2018 | 1/2 | SYR4 |
| Monochloroacetic Acid | 4.04 µg/L No EPA limit set Main supplier: HARNETT REGIONAL WATER · 121,885 people · 2019 | 2/2 | SYR4 |
| Monobromoacetic Acid | 1.2 µg/L No EPA limit set Main supplier: HARNETT REGIONAL WATER · 121,885 people · 2019
Highest in the ZIP: 1.47 µg/L — DUNN, CITY OF · 12,442 people · 2019 | 2/2 | SYR4 |
| Atrazine | 0.4120 µg/L 14% of the EPA limit 3 µg/L Highest in the ZIP: DUNN, CITY OF · 12,442 people · 2019 | 1/2 | SYR4 |
| Simazine | 0.2725 µg/L 6.8% of the EPA limit 4 µg/L Highest in the ZIP: DUNN, CITY OF · 12,442 people · 2019 | 1/2 | SYR4 |
| Pfpea | 0.0069 µg/L No EPA limit set Main supplier: HARNETT REGIONAL WATER · 121,885 people · 2025
Highest in the ZIP: 0.0224 µg/L — DUNN, CITY OF · 12,442 people · 2024 | 2/2 | UCMR-5 |
| Pfhxa | 0.0071 µg/L No EPA limit set Main supplier: HARNETT REGIONAL WATER · 121,885 people · 2025
Highest in the ZIP: 0.0204 µg/L — DUNN, CITY OF · 12,442 people · 2024 | 2/2 | UCMR-5 |
| PFOS | 0.0123 µg/L No EPA limit set Main supplier: HARNETT REGIONAL WATER · 121,885 people · 2025
Highest in the ZIP: 0.0144 µg/L — DUNN, CITY OF · 12,442 people · 2024 | 2/2 | UCMR-5 |
| PFBS | 0.0034 µg/L No EPA limit set Main supplier: HARNETT REGIONAL WATER · 121,885 people · 2025
Highest in the ZIP: 0.0142 µg/L — DUNN, CITY OF · 12,442 people · 2024 | 2/2 | UCMR-5 |
| Pfba | 0.0134 µg/L No EPA limit set Highest in the ZIP: DUNN, CITY OF · 12,442 people · 2024 | 1/2 | UCMR-5 |
| PFOA | 0.0077 µg/L No EPA limit set Main supplier: HARNETT REGIONAL WATER · 121,885 people · 2025
Highest in the ZIP: 0.0120 µg/L — DUNN, CITY OF · 12,442 people · 2024 | 2/2 | UCMR-5 |
| Pfhpa | 0.0036 µg/L No EPA limit set Main supplier: HARNETT REGIONAL WATER · 121,885 people · 2025
Highest in the ZIP: 0.0076 µg/L — DUNN, CITY OF · 12,442 people · 2024 | 2/2 | UCMR-5 |
| PFHXS | 0.0031 µg/L No EPA limit set Main supplier: HARNETT REGIONAL WATER · 121,885 people · 2025
Highest in the ZIP: 0.0052 µg/L — DUNN, CITY OF · 12,442 people · 2024 | 2/2 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: HARNETT REGIONAL WATER · 121,885 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.
Water suppliers serving ZIP 28335
| Supplier | State | Population served |
|---|---|---|
| HARNETT REGIONAL WATER | NC | 121,885 |
| DUNN, CITY OF | NC | 12,442 |
Frequently asked questions about ZIP 28335 tap water
Is the tap water in ZIP 28335 safe to drink?
EPA testing detected 30 contaminants across the water suppliers serving ZIP 28335. 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 28335?
2 public water suppliers report EPA drinking-water monitoring for ZIP 28335. Each is listed above with its population served.
What contaminants are in ZIP 28335's water?
EPA monitoring detected Nitrate, Nitrate-Nitrite, Fluoride, Chlorite, Lead, and others across this ZIP's suppliers. The full list with levels and sources is above.