What was found in ZIP 28166
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-Nitrite | 7016 µg/L 70% of the EPA limit 10000 µg/L Main supplier: IREDELL WATER CORPORATION · 27,173 people · 2019 | 1/2 | SYR4 |
| Nitrate | 7000 µg/L 70% of the EPA limit 10000 µg/L Main supplier: IREDELL WATER CORPORATION · 27,173 people · 2019 | 1/2 | SYR4 |
| Fluoride | 821.3 µg/L 21% of the EPA limit 4000 µg/L Main supplier: IREDELL WATER CORPORATION · 27,173 people · 2018 | 1/2 | SYR4 |
| Copper | 609 µg/L 47% of the EPA limit 1300 µg/L Main supplier: IREDELL WATER CORPORATION · 27,173 people · 2018 | 2/2 | SYR4 |
| TTHM | 83 µg/L 104% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: IREDELL WATER CORPORATION · 27,173 people · 2019
Highest in the ZIP: 94.505 µg/L — TROUTMAN, TOWN OF · 9,562 people · 2019 | 2/2 | SYR4 |
| Chloroform | 74.8 µg/L No EPA limit set Main supplier: IREDELL WATER CORPORATION · 27,173 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 49.9 µg/L 83% of the EPA limit 60 µg/L Main supplier: IREDELL WATER CORPORATION · 27,173 people · 2019
Highest in the ZIP: 74.735 µg/L — TROUTMAN, TOWN OF · 9,562 people · 2019 | 2/2 | SYR4 |
| Trichloroacetic Acid | 23.4 µg/L No EPA limit set Main supplier: IREDELL WATER CORPORATION · 27,173 people · 2019
Highest in the ZIP: 28.205 µg/L — TROUTMAN, TOWN OF · 9,562 people · 2019 | 2/2 | SYR4 |
| Dichloroacetic Acid | 27 µg/L No EPA limit set Main supplier: IREDELL WATER CORPORATION · 27,173 people · 2019 | 2/2 | SYR4 |
| Gross Alpha, Excl. Radon And U | 11.8 pCi/L 79% of the EPA limit 15 pCi/L Main supplier: IREDELL WATER CORPORATION · 27,173 people · 2019 | 1/2 | SYR4 |
| Lithium | 9.06 µg/L No EPA limit set Main supplier: IREDELL WATER CORPORATION · 27,173 people · 2025 | 1/2 | UCMR-5 |
| Bromodichloromethane | 8.52 µg/L No EPA limit set Main supplier: IREDELL WATER CORPORATION · 27,173 people · 2019 | 2/2 | SYR4 |
| Monobromoacetic Acid | 6.72 µg/L No EPA limit set Main supplier: IREDELL WATER CORPORATION · 27,173 people · 2019 | 1/2 | SYR4 |
| Monochloroacetic Acid | 5.3 µg/L No EPA limit set Main supplier: IREDELL WATER CORPORATION · 27,173 people · 2019 | 1/2 | SYR4 |
| Toluene | 4.82 µg/L 0.5% of the EPA limit 1000 µg/L Main supplier: IREDELL WATER CORPORATION · 27,173 people · 2019 | 1/2 | SYR4 |
| Combined Uranium | 4.2465 µg/L 14% of the EPA limit 30 µg/L Main supplier: IREDELL WATER CORPORATION · 27,173 people · 2019 | 1/2 | SYR4 |
| Combined Radium (-226 And -228) | 2.495 pCi/L 50% of the EPA limit 5 pCi/L Main supplier: IREDELL WATER CORPORATION · 27,173 people · 2019 | 1/2 | SYR4 |
| Dibromochloromethane | 1.4 µg/L No EPA limit set Main supplier: IREDELL WATER CORPORATION · 27,173 people · 2019
Highest in the ZIP: 1.575 µg/L — TROUTMAN, TOWN OF · 9,562 people · 2019 | 2/2 | SYR4 |
| Dibromoacetic Acid | 1.3 µg/L No EPA limit set Highest in the ZIP: TROUTMAN, TOWN OF · 9,562 people · 2019 | 1/2 | SYR4 |
| Benzene | 0.5000 µg/L 10% of the EPA limit 5 µg/L Main supplier: IREDELL WATER CORPORATION · 27,173 people · 2019 | 1/2 | SYR4 |
| Pfpea | 0.0606 µg/L No EPA limit set Main supplier: IREDELL WATER CORPORATION · 27,173 people · 2025 | 1/2 | UCMR-5 |
| Pfhxa | 0.0305 µg/L No EPA limit set Main supplier: IREDELL WATER CORPORATION · 27,173 people · 2025 | 1/2 | UCMR-5 |
| PFOA | 0.0188 µg/L No EPA limit set Main supplier: IREDELL WATER CORPORATION · 27,173 people · 2025 | 1/2 | UCMR-5 |
| Pfba | 0.0147 µg/L No EPA limit set Main supplier: IREDELL WATER CORPORATION · 27,173 people · 2025 | 1/2 | UCMR-5 |
| Pfhpa | 0.0099 µg/L No EPA limit set Main supplier: IREDELL WATER CORPORATION · 27,173 people · 2025 | 1/2 | UCMR-5 |
| PFBS | 0.0062 µg/L No EPA limit set Main supplier: IREDELL WATER CORPORATION · 27,173 people · 2025 | 1/2 | UCMR-5 |
| PFOS | 0.0049 µg/L No EPA limit set Main supplier: IREDELL WATER CORPORATION · 27,173 people · 2025 | 1/2 | UCMR-5 |
| PFHXS | 0.0036 µg/L No EPA limit set Main supplier: IREDELL WATER CORPORATION · 27,173 people · 2025 | 1/2 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: IREDELL WATER CORPORATION · 27,173 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 28166
| Supplier | State | Population served |
|---|---|---|
| IREDELL WATER CORPORATION | NC | 27,173 |
| TROUTMAN, TOWN OF | NC | 9,562 |
Frequently asked questions about ZIP 28166 tap water
Is the tap water in ZIP 28166 safe to drink?
EPA testing detected 29 contaminants across the water suppliers serving ZIP 28166. 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 28166?
2 public water suppliers report EPA drinking-water monitoring for ZIP 28166. Each is listed above with its population served.
What contaminants are in ZIP 28166's water?
EPA monitoring detected Nitrate-Nitrite, Nitrate, Fluoride, Copper, TTHM, and others across this ZIP's suppliers. The full list with levels and sources is above.