What was found in Harkers Island'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 | 448 µg/L 11% of the EPA limit 4000 µg/L Main supplier: HARKERS ISLAND SANITARY DIST · 2,586 people · 2019
Highest in the city: 673 µg/L — HARKERS VILLAGE S/D · 94 people · 2019 | 2/2 | SYR4 |
| Copper | 344 µg/L 26% of the EPA limit 1300 µg/L Main supplier: HARKERS ISLAND SANITARY DIST · 2,586 people · 2017 | 2/2 | SYR4 |
| Nitrate | 130 µg/L 1.3% of the EPA limit 10000 µg/L Main supplier: HARKERS ISLAND SANITARY DIST · 2,586 people · 2019 | 1/2 | SYR4 |
| Nitrate-Nitrite | 129.5 µg/L 1.3% of the EPA limit 10000 µg/L Main supplier: HARKERS ISLAND SANITARY DIST · 2,586 people · 2018 | 1/2 | SYR4 |
| Chloroform | 66.12 µg/L No EPA limit set Main supplier: HARKERS ISLAND SANITARY DIST · 2,586 people · 2019
Highest in the city: 89 µg/L — HARKERS VILLAGE S/D · 94 people · 2019 | 2/2 | SYR4 |
| TTHM | 83.28 µg/L 104% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: HARKERS ISLAND SANITARY DIST · 2,586 people · 2019
Highest in the city: 87.7 µg/L — HARKERS VILLAGE S/D · 94 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 30.6 µg/L 51% of the EPA limit 60 µg/L Main supplier: HARKERS ISLAND SANITARY DIST · 2,586 people · 2019
Highest in the city: 69.9 µg/L — HARKERS VILLAGE S/D · 94 people · 2019 | 2/2 | SYR4 |
| Trichloroacetic Acid | 19.6 µg/L No EPA limit set Main supplier: HARKERS ISLAND SANITARY DIST · 2,586 people · 2019
Highest in the city: 47.65 µg/L — HARKERS VILLAGE S/D · 94 people · 2019 | 2/2 | SYR4 |
| Dichloroacetic Acid | 13.9 µg/L No EPA limit set Main supplier: HARKERS ISLAND SANITARY DIST · 2,586 people · 2019
Highest in the city: 21.15 µg/L — HARKERS VILLAGE S/D · 94 people · 2019 | 2/2 | SYR4 |
| Bromodichloromethane | 16 µg/L No EPA limit set Main supplier: HARKERS ISLAND SANITARY DIST · 2,586 people · 2019 | 2/2 | SYR4 |
| Lead | 4.42 µg/L 29% of the EPA limit 15 µg/L Main supplier: HARKERS ISLAND SANITARY DIST · 2,586 people · 2017
Highest in the city: 10.78 µg/L — HARKERS VILLAGE S/D · 94 people · 2017 | 2/2 | SYR4 |
| Gross Beta Particle Activity | 10.1 pCi/L No EPA limit set Highest in the city: HARKERS VILLAGE S/D · 94 people · 2019 | 1/2 | SYR4 |
| Dibromoacetic Acid | 6.3 µg/L No EPA limit set Highest in the city: HARKERS VILLAGE S/D · 94 people · 2019 | 1/2 | SYR4 |
| Monochloroacetic Acid | 4.165 µg/L No EPA limit set Main supplier: HARKERS ISLAND SANITARY DIST · 2,586 people · 2019 | 1/2 | SYR4 |
| Dibromochloromethane | 3.39 µg/L No EPA limit set Main supplier: HARKERS ISLAND SANITARY DIST · 2,586 people · 2019 | 1/2 | SYR4 |
| Carbon Tetrachloride | 1.6 µg/L 32% of the EPA limit 5 µg/L Main supplier: HARKERS ISLAND SANITARY DIST · 2,586 people · 2019 | 1/2 | SYR4 |
| Dichloromethane | 1.6 µg/L 32% of the EPA limit 5 µg/L Main supplier: HARKERS ISLAND SANITARY DIST · 2,586 people · 2019 | 1/2 | SYR4 |
| Dalapon | 1.475 µg/L 0.7% of the EPA limit 200 µg/L Main supplier: HARKERS ISLAND SANITARY DIST · 2,586 people · 2019 | 1/2 | SYR4 |
| Monobromoacetic Acid | 1.3 µg/L No EPA limit set Highest in the city: HARKERS VILLAGE S/D · 94 people · 2019 | 1/2 | SYR4 |
| Xylenes, Total | 0.8300 µg/L 0% of the EPA limit 10000 µg/L Highest in the city: HARKERS VILLAGE S/D · 94 people · 2019 | 1/2 | SYR4 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: HARKERS ISLAND SANITARY DIST · 2,586 people · 2028
Highest in the city: 0.0105 mg/L — HARKERS VILLAGE S/D · 94 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.
These are the utilities' own EPA-reported results, not a city-wide
average. A detection means the lab measured the
substance — it isn't the same as exceeding a legal limit. Hover a source
tag to see the EPA program and years behind each figure.
Water suppliers serving Harkers Island
| Supplier | Population served |
|---|---|
| HARKERS ISLAND SANITARY DIST | 2,586 |
| HARKERS VILLAGE S/D | 94 |
Frequently asked questions about Harkers Island tap water
Is Harkers Island tap water safe to drink?
EPA testing detected 21 contaminants in the water serving Harkers Island. 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 Harkers Island?
2 public water suppliers report drinking-water monitoring for Harkers Island, North Carolina to the EPA. Each is listed above with its population served.
What contaminants are in Harkers Island's water?
The contaminants EPA monitoring detected in Harkers Island include Fluoride, Copper, Nitrate, Nitrate-Nitrite, 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.