What was found in ZIP 27557
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 |
|---|---|---|---|
| Fluoride | 537 µg/L 13% of the EPA limit 4000 µg/L Main supplier: JOHNSTON CO-EAST · 25,212 people · 2019 | 1/2 | SYR4 |
| Copper | 435 µg/L 33% of the EPA limit 1300 µg/L Main supplier: JOHNSTON CO-EAST · 25,212 people · 2017 | 2/2 | SYR4 |
| TTHM | 84 µg/L 105% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: JOHNSTON CO-EAST · 25,212 people · 2019
Highest in the ZIP: 85.045 µg/L — CENTRAL NASH WATER & SEWER · 7,675 people · 2019 | 2/2 | SYR4 |
| Chloroform | 68.4 µg/L No EPA limit set Main supplier: JOHNSTON CO-EAST · 25,212 people · 2019
Highest in the ZIP: 73.36 µg/L — CENTRAL NASH WATER & SEWER · 7,675 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 40.6 µg/L 68% of the EPA limit 60 µg/L Main supplier: JOHNSTON CO-EAST · 25,212 people · 2019
Highest in the ZIP: 66.13 µg/L — CENTRAL NASH WATER & SEWER · 7,675 people · 2019 | 2/2 | SYR4 |
| Dichloroacetic Acid | 18 µg/L No EPA limit set Main supplier: JOHNSTON CO-EAST · 25,212 people · 2019
Highest in the ZIP: 39.19 µg/L — CENTRAL NASH WATER & SEWER · 7,675 people · 2019 | 2/2 | SYR4 |
| Trichloroacetic Acid | 23.15 µg/L No EPA limit set Main supplier: JOHNSTON CO-EAST · 25,212 people · 2019
Highest in the ZIP: 24.31 µg/L — CENTRAL NASH WATER & SEWER · 7,675 people · 2019 | 2/2 | SYR4 |
| Lead | 23 µg/L 153% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: JOHNSTON CO-EAST · 25,212 people · 2017 | 1/2 | SYR4 |
| Bromodichloromethane | 20 µg/L No EPA limit set Main supplier: JOHNSTON CO-EAST · 25,212 people · 2019 | 2/2 | SYR4 |
| Monobromoacetic Acid | 10.5 µg/L No EPA limit set Main supplier: JOHNSTON CO-EAST · 25,212 people · 2019 | 2/2 | SYR4 |
| Dibromochloromethane | 7.2 µg/L No EPA limit set Main supplier: JOHNSTON CO-EAST · 25,212 people · 2019 | 2/2 | SYR4 |
| Monochloroacetic Acid | 6.55 µg/L No EPA limit set Main supplier: JOHNSTON CO-EAST · 25,212 people · 2019 | 2/2 | SYR4 |
| Dibromoacetic Acid | 5.85 µg/L No EPA limit set Main supplier: JOHNSTON CO-EAST · 25,212 people · 2019 | 2/2 | SYR4 |
| Bromoform | 1.8 µg/L No EPA limit set Main supplier: JOHNSTON CO-EAST · 25,212 people · 2019 | 1/2 | SYR4 |
| Simazine | 0.3510 µg/L 8.8% of the EPA limit 4 µg/L Main supplier: JOHNSTON CO-EAST · 25,212 people · 2019 | 1/2 | SYR4 |
| Atrazine | 0.1300 µg/L 4.3% of the EPA limit 3 µg/L Main supplier: JOHNSTON CO-EAST · 25,212 people · 2019 | 1/2 | SYR4 |
| Pfba | 0.0144 µg/L No EPA limit set Main supplier: JOHNSTON CO-EAST · 25,212 people · 2024 | 2/2 | UCMR-5 |
| PFOS | 0.0097 µg/L No EPA limit set Main supplier: JOHNSTON CO-EAST · 25,212 people · 2024
Highest in the ZIP: 0.0102 µg/L — CENTRAL NASH WATER & SEWER · 7,675 people · 2023 | 2/2 | UCMR-5 |
| Pfhxa | 0.0082 µg/L No EPA limit set Main supplier: JOHNSTON CO-EAST · 25,212 people · 2024 | 1/2 | UCMR-5 |
| Pfpea | 0.0078 µg/L No EPA limit set Main supplier: JOHNSTON CO-EAST · 25,212 people · 2024 | 1/2 | UCMR-5 |
| PFOA | 0.0077 µg/L No EPA limit set Main supplier: JOHNSTON CO-EAST · 25,212 people · 2024 | 2/2 | UCMR-5 |
| PFBS | 0.0055 µg/L No EPA limit set Main supplier: JOHNSTON CO-EAST · 25,212 people · 2024 | 1/2 | UCMR-5 |
| PFHXS | 0.0038 µg/L No EPA limit set Main supplier: JOHNSTON CO-EAST · 25,212 people · 2024 | 1/2 | UCMR-5 |
| Pfhpa | 0.0033 µg/L No EPA limit set Main supplier: JOHNSTON CO-EAST · 25,212 people · 2024 | 1/2 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: JOHNSTON CO-EAST · 25,212 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 27557
| Supplier | State | Population served |
|---|---|---|
| JOHNSTON CO-EAST | NC | 25,212 |
| CENTRAL NASH WATER & SEWER | NC | 7,675 |
Frequently asked questions about ZIP 27557 tap water
Is the tap water in ZIP 27557 safe to drink?
EPA testing detected 25 contaminants across the water suppliers serving ZIP 27557. 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 27557?
2 public water suppliers report EPA drinking-water monitoring for ZIP 27557. Each is listed above with its population served.
What contaminants are in ZIP 27557's water?
EPA monitoring detected Fluoride, Copper, TTHM, Chloroform, Total Haloacetic Acids (HAA5), and others across this ZIP's suppliers. The full list with levels and sources is above.