What was found in ZIP 27707
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 | 745 µg/L 19% of the EPA limit 4000 µg/L Main supplier: DURHAM, CITY OF · 333,490 people · 2019
Highest in the ZIP: 770 µg/L — ORANGE WATER & SEWER AUTHORITY · 86,500 people · 2019 | 2/2 | SYR4 |
| Nitrate | 300 µg/L 3% of the EPA limit 10000 µg/L Main supplier: DURHAM, CITY OF · 333,490 people · 2019 | 1/2 | SYR4 |
| Nitrate-Nitrite | 300 µg/L 3% of the EPA limit 10000 µg/L Main supplier: DURHAM, CITY OF · 333,490 people · 2018 | 1/2 | SYR4 |
| Copper | 256.5 µg/L 20% of the EPA limit 1300 µg/L Main supplier: DURHAM, CITY OF · 333,490 people · 2019 | 2/2 | SYR4 |
| Cyanide | 96.35 µg/L 48% of the EPA limit 200 µg/L Main supplier: DURHAM, CITY OF · 333,490 people · 2019 | 1/2 | SYR4 |
| TTHM | 68.55 µg/L 86% of the EPA limit 80 µg/L Main supplier: DURHAM, CITY OF · 333,490 people · 2019 | 2/2 | SYR4 |
| Chloroform | 57 µg/L No EPA limit set Main supplier: DURHAM, CITY OF · 333,490 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 48.2 µg/L 80% of the EPA limit 60 µg/L Main supplier: DURHAM, CITY OF · 333,490 people · 2019 | 2/2 | SYR4 |
| Dichloroacetic Acid | 25 µg/L No EPA limit set Main supplier: DURHAM, CITY OF · 333,490 people · 2019 | 2/2 | SYR4 |
| Trichloroacetic Acid | 23 µg/L No EPA limit set Main supplier: DURHAM, CITY OF · 333,490 people · 2019 | 2/2 | SYR4 |
| Lead | 4.85 µg/L 32% of the EPA limit 15 µg/L Main supplier: DURHAM, CITY OF · 333,490 people · 2019
Highest in the ZIP: 12.55 µg/L — ORANGE WATER & SEWER AUTHORITY · 86,500 people · 2019 | 2/2 | SYR4 |
| Bromodichloromethane | 10 µg/L No EPA limit set Main supplier: DURHAM, CITY OF · 333,490 people · 2019 | 2/2 | SYR4 |
| Monochloroacetic Acid | 9.2 µg/L No EPA limit set Main supplier: DURHAM, CITY OF · 333,490 people · 2019 | 2/2 | SYR4 |
| Gross Beta Particle Activity | 4.3 pCi/L No EPA limit set Main supplier: DURHAM, CITY OF · 333,490 people · 2017 | 1/2 | SYR4 |
| Bromoform | 2.985 µg/L No EPA limit set Main supplier: DURHAM, CITY OF · 333,490 people · 2019 | 1/2 | SYR4 |
| Dibromochloromethane | 1.7 µg/L No EPA limit set Main supplier: DURHAM, CITY OF · 333,490 people · 2019
Highest in the ZIP: 2.885 µg/L — ORANGE WATER & SEWER AUTHORITY · 86,500 people · 2019 | 2/2 | SYR4 |
| Dalapon | 2.36 µg/L 1.2% of the EPA limit 200 µg/L Main supplier: DURHAM, CITY OF · 333,490 people · 2019 | 1/2 | SYR4 |
| Gross Alpha, Excl. Radon And U | 2.1 pCi/L 14% of the EPA limit 15 pCi/L Highest in the ZIP: ORANGE WATER & SEWER AUTHORITY · 86,500 people · 2017 | 1/2 | SYR4 |
| Monobromoacetic Acid | 1.94 µg/L No EPA limit set Main supplier: DURHAM, CITY OF · 333,490 people · 2019 | 1/2 | SYR4 |
| Dibromoacetic Acid | 1.8 µg/L No EPA limit set Main supplier: DURHAM, CITY OF · 333,490 people · 2019 | 1/2 | SYR4 |
| Atrazine | 0.5320 µg/L 18% of the EPA limit 3 µg/L Main supplier: DURHAM, CITY OF · 333,490 people · 2019 | 1/2 | SYR4 |
| Simazine | 0.3190 µg/L 8% of the EPA limit 4 µg/L Main supplier: DURHAM, CITY OF · 333,490 people · 2019 | 1/2 | SYR4 |
| 2,4-D | 0.1000 µg/L 0.1% of the EPA limit 70 µg/L Main supplier: DURHAM, CITY OF · 333,490 people · 2019 | 1/2 | SYR4 |
| Benzo(A)Pyrene | 0.0200 µg/L 10% of the EPA limit 0.2000 µg/L Highest in the ZIP: ORANGE WATER & SEWER AUTHORITY · 86,500 people · 2018 | 1/2 | SYR4 |
| PFBS | 0.0065 µg/L No EPA limit set Main supplier: DURHAM, CITY OF · 333,490 people · 2023 | 1/2 | UCMR-5 |
| PFOS | 0.0058 µg/L No EPA limit set Main supplier: DURHAM, CITY OF · 333,490 people · 2023 | 2/2 | UCMR-5 |
| Pfba | 0.0052 µg/L No EPA limit set Main supplier: DURHAM, CITY OF · 333,490 people · 2023 | 1/2 | UCMR-5 |
| PFOA | 0.0041 µg/L No EPA limit set Main supplier: DURHAM, CITY OF · 333,490 people · 2023
Highest in the ZIP: 0.0046 µg/L — ORANGE WATER & SEWER AUTHORITY · 86,500 people · 2025 | 2/2 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: DURHAM, CITY OF · 333,490 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 27707
| Supplier | State | Population served |
|---|---|---|
| DURHAM, CITY OF | NC | 333,490 |
| ORANGE WATER & SEWER AUTHORITY | NC | 86,500 |
Frequently asked questions about ZIP 27707 tap water
Is the tap water in ZIP 27707 safe to drink?
EPA testing detected 29 contaminants across the water suppliers serving ZIP 27707. 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 27707?
2 public water suppliers report EPA drinking-water monitoring for ZIP 27707. Each is listed above with its population served.
What contaminants are in ZIP 27707's water?
EPA monitoring detected Fluoride, Nitrate, Nitrate-Nitrite, Copper, Cyanide, and others across this ZIP's suppliers. The full list with levels and sources is above.