What was found in Carrboro's water
The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Fluoride | 770 µg/L 19% of the EPA limit 4000 µg/L Main supplier: ORANGE WATER & SEWER AUTHORITY · 86,500 people · 2019 | 1/1 | SYR4 |
| Copper | 109.6 µg/L 8.4% of the EPA limit 1300 µg/L Main supplier: ORANGE WATER & SEWER AUTHORITY · 86,500 people · 2019 | 1/1 | SYR4 |
| TTHM | 42.19 µg/L 53% of the EPA limit 80 µg/L Main supplier: ORANGE WATER & SEWER AUTHORITY · 86,500 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 33 µg/L 55% of the EPA limit 60 µg/L Main supplier: ORANGE WATER & SEWER AUTHORITY · 86,500 people · 2019 | 1/1 | SYR4 |
| Chloroform | 30.35 µg/L No EPA limit set Main supplier: ORANGE WATER & SEWER AUTHORITY · 86,500 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 17.45 µg/L No EPA limit set Main supplier: ORANGE WATER & SEWER AUTHORITY · 86,500 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 15.45 µg/L No EPA limit set Main supplier: ORANGE WATER & SEWER AUTHORITY · 86,500 people · 2019 | 1/1 | SYR4 |
| Lead | 12.55 µg/L 84% of the EPA limit 15 µg/L Main supplier: ORANGE WATER & SEWER AUTHORITY · 86,500 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 10 µg/L No EPA limit set Main supplier: ORANGE WATER & SEWER AUTHORITY · 86,500 people · 2019 | 1/1 | SYR4 |
| Monochloroacetic Acid | 3.07 µg/L No EPA limit set Main supplier: ORANGE WATER & SEWER AUTHORITY · 86,500 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 2.885 µg/L No EPA limit set Main supplier: ORANGE WATER & SEWER AUTHORITY · 86,500 people · 2019 | 1/1 | SYR4 |
| Gross Alpha, Excl. Radon And U | 2.1 pCi/L 14% of the EPA limit 15 pCi/L Main supplier: ORANGE WATER & SEWER AUTHORITY · 86,500 people · 2017 | 1/1 | SYR4 |
| Benzo(A)Pyrene | 0.0200 µg/L 10% of the EPA limit 0.2000 µg/L Main supplier: ORANGE WATER & SEWER AUTHORITY · 86,500 people · 2018 | 1/1 | SYR4 |
| PFOS | 0.0048 µg/L No EPA limit set Main supplier: ORANGE WATER & SEWER AUTHORITY · 86,500 people · 2025 | 1/1 | UCMR-5 |
| PFOA | 0.0046 µg/L No EPA limit set Main supplier: ORANGE WATER & SEWER AUTHORITY · 86,500 people · 2025 | 1/1 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: ORANGE WATER & SEWER AUTHORITY · 86,500 people · 2028 | 1/1 | LCR |
Water suppliers serving Carrboro
| Supplier | Population served |
|---|---|
| ORANGE WATER & SEWER AUTHORITY | 86,500 |
Frequently asked questions about Carrboro tap water
Is Carrboro tap water safe to drink?
EPA testing detected 16 contaminants in the water serving Carrboro. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.
How many water suppliers serve Carrboro?
1 public water supplier report drinking-water monitoring for Carrboro, North Carolina to the EPA. Each is listed above with its population served.
What contaminants are in Carrboro's water?
The contaminants EPA monitoring detected in Carrboro include Fluoride, Copper, TTHM, Total Haloacetic Acids (HAA5), Chloroform. The full list, with the level at the main supplier and the data source, is in the table above.
Where does this data come from?
Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.