What was found in ZIP 27591
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 | 780 µg/L 20% of the EPA limit 4000 µg/L Main supplier: RALEIGH, CITY OF · 650,000 people · 2019 | 2/2 | SYR4 |
| Copper | 90.6 µg/L 7% of the EPA limit 1300 µg/L Main supplier: RALEIGH, CITY OF · 650,000 people · 2019
Highest in the ZIP: 435 µg/L — JOHNSTON CO-EAST · 25,212 people · 2017 | 2/2 | SYR4 |
| TTHM | 53.31 µg/L 67% of the EPA limit 80 µg/L Main supplier: RALEIGH, CITY OF · 650,000 people · 2019
Highest in the ZIP: 84 µg/L — JOHNSTON CO-EAST · 25,212 people · 2019 | 2/2 | SYR4 |
| Chloroform | 41.6 µg/L No EPA limit set Main supplier: RALEIGH, CITY OF · 650,000 people · 2019
Highest in the ZIP: 68.4 µg/L — JOHNSTON CO-EAST · 25,212 people · 2019 | 2/2 | SYR4 |
| Lead | 54.45 µg/L 363% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: RALEIGH, CITY OF · 650,000 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 36.871 µg/L 61% of the EPA limit 60 µg/L Main supplier: RALEIGH, CITY OF · 650,000 people · 2019
Highest in the ZIP: 40.6 µg/L — JOHNSTON CO-EAST · 25,212 people · 2019 | 2/2 | SYR4 |
| Dichloroacetic Acid | 23.33 µg/L No EPA limit set Main supplier: RALEIGH, CITY OF · 650,000 people · 2019 | 2/2 | SYR4 |
| Trichloroacetic Acid | 11.78 µg/L No EPA limit set Main supplier: RALEIGH, CITY OF · 650,000 people · 2019
Highest in the ZIP: 23.15 µg/L — JOHNSTON CO-EAST · 25,212 people · 2019 | 2/2 | SYR4 |
| Bromodichloromethane | 11 µg/L No EPA limit set Main supplier: RALEIGH, CITY OF · 650,000 people · 2019
Highest in the ZIP: 20 µg/L — JOHNSTON CO-EAST · 25,212 people · 2019 | 2/2 | SYR4 |
| Monobromoacetic Acid | 1.504 µg/L No EPA limit set Main supplier: RALEIGH, CITY OF · 650,000 people · 2019
Highest in the ZIP: 10.5 µg/L — JOHNSTON CO-EAST · 25,212 people · 2019 | 2/2 | SYR4 |
| Dibromochloromethane | 4 µg/L No EPA limit set Main supplier: RALEIGH, CITY OF · 650,000 people · 2019
Highest in the ZIP: 7.2 µg/L — JOHNSTON CO-EAST · 25,212 people · 2019 | 2/2 | SYR4 |
| Monochloroacetic Acid | 3.36 µg/L No EPA limit set Main supplier: RALEIGH, CITY OF · 650,000 people · 2019
Highest in the ZIP: 6.55 µg/L — JOHNSTON CO-EAST · 25,212 people · 2019 | 2/2 | SYR4 |
| Dibromoacetic Acid | 1.4 µg/L No EPA limit set Main supplier: RALEIGH, CITY OF · 650,000 people · 2019
Highest in the ZIP: 5.85 µg/L — JOHNSTON CO-EAST · 25,212 people · 2019 | 2/2 | SYR4 |
| Bromate | 2 µg/L 20% of the EPA limit 10 µg/L Main supplier: RALEIGH, CITY OF · 650,000 people · 2019 | 1/2 | SYR4 |
| Bromoform | 1.8 µg/L No EPA limit set Highest in the ZIP: JOHNSTON CO-EAST · 25,212 people · 2019 | 1/2 | SYR4 |
| Combined Radium (-226 And -228) | 1 pCi/L 20% of the EPA limit 5 pCi/L Main supplier: RALEIGH, CITY OF · 650,000 people · 2017 | 1/2 | SYR4 |
| Thallium, Total | 1 µg/L 50% of the EPA limit 2 µg/L Main supplier: RALEIGH, CITY OF · 650,000 people · 2019 | 1/2 | SYR4 |
| Simazine | 0.3510 µg/L 8.8% of the EPA limit 4 µg/L Highest in the ZIP: JOHNSTON CO-EAST · 25,212 people · 2019 | 1/2 | SYR4 |
| Atrazine | 0.1300 µg/L 4.3% of the EPA limit 3 µg/L Highest in the ZIP: JOHNSTON CO-EAST · 25,212 people · 2019 | 1/2 | SYR4 |
| Pfba | 0.0090 µg/L No EPA limit set Main supplier: RALEIGH, CITY OF · 650,000 people · 2024
Highest in the ZIP: 0.0144 µg/L — JOHNSTON CO-EAST · 25,212 people · 2024 | 2/2 | UCMR-5 |
| PFOS | 0.0056 µg/L No EPA limit set Main supplier: RALEIGH, CITY OF · 650,000 people · 2024
Highest in the ZIP: 0.0097 µg/L — JOHNSTON CO-EAST · 25,212 people · 2024 | 2/2 | UCMR-5 |
| Pfhxa | 0.0042 µg/L No EPA limit set Main supplier: RALEIGH, CITY OF · 650,000 people · 2024
Highest in the ZIP: 0.0082 µg/L — JOHNSTON CO-EAST · 25,212 people · 2024 | 2/2 | UCMR-5 |
| Pfpea | 0.0043 µg/L No EPA limit set Main supplier: RALEIGH, CITY OF · 650,000 people · 2024
Highest in the ZIP: 0.0078 µg/L — JOHNSTON CO-EAST · 25,212 people · 2024 | 2/2 | UCMR-5 |
| PFOA | 0.0077 µg/L No EPA limit set Highest in the ZIP: JOHNSTON CO-EAST · 25,212 people · 2024 | 1/2 | UCMR-5 |
| PFBS | 0.0033 µg/L No EPA limit set Main supplier: RALEIGH, CITY OF · 650,000 people · 2024
Highest in the ZIP: 0.0055 µg/L — JOHNSTON CO-EAST · 25,212 people · 2024 | 2/2 | UCMR-5 |
| PFHXS | 0.0038 µg/L No EPA limit set Highest in the ZIP: JOHNSTON CO-EAST · 25,212 people · 2024 | 1/2 | UCMR-5 |
| Pfhpa | 0.0033 µg/L No EPA limit set Highest in the ZIP: 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: RALEIGH, CITY OF · 650,000 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 27591
| Supplier | State | Population served |
|---|---|---|
| RALEIGH, CITY OF | NC | 650,000 |
| JOHNSTON CO-EAST | NC | 25,212 |
Frequently asked questions about ZIP 27591 tap water
Is the tap water in ZIP 27591 safe to drink?
EPA testing detected 28 contaminants across the water suppliers serving ZIP 27591. 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 27591?
2 public water suppliers report EPA drinking-water monitoring for ZIP 27591. Each is listed above with its population served.
What contaminants are in ZIP 27591's water?
EPA monitoring detected Fluoride, Copper, TTHM, Chloroform, Lead, and others across this ZIP's suppliers. The full list with levels and sources is above.