What was found in Henderson'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 |
|---|---|---|---|
| Nitrate | 1500 µg/L 15% of the EPA limit 10000 µg/L Main supplier: HENDERSON-KERR LAKE REG WTR · 14,937 people · 2019
Highest in the city: 3620 µg/L — EDGEWOOD ESTATES · 48 people · 2019 | 4/6 | SYR4 |
| Nitrate-Nitrite | 64 µg/L 0.6% of the EPA limit 10000 µg/L Main supplier: HENDERSON-KERR LAKE REG WTR · 14,937 people · 2016
Highest in the city: 3576 µg/L — EDGEWOOD ESTATES · 48 people · 2019 | 4/6 | SYR4 |
| Copper | 351.8 µg/L 27% of the EPA limit 1300 µg/L Main supplier: HENDERSON-KERR LAKE REG WTR · 14,937 people · 2018
Highest in the city: 2008.05 µg/L — VANCE CO WATER DISTRICT PHASE 2 · 1,376 people · 2018 | 5/6 | SYR4 |
| Fluoride | 849.5 µg/L 21% of the EPA limit 4000 µg/L Main supplier: HENDERSON-KERR LAKE REG WTR · 14,937 people · 2019 | 3/6 | SYR4 |
| TTHM | 105.45 µg/L 132% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: HENDERSON-KERR LAKE REG WTR · 14,937 people · 2019 | 6/6 | SYR4 |
| Total Haloacetic Acids (HAA5) | 47.6 µg/L 79% of the EPA limit 60 µg/L Main supplier: HENDERSON-KERR LAKE REG WTR · 14,937 people · 2019
Highest in the city: 100 µg/L — KNOLL TERRACE MHP · 254 people · 2018 | 5/6 | SYR4 |
| Chloroform | 77.95 µg/L No EPA limit set Main supplier: HENDERSON-KERR LAKE REG WTR · 14,937 people · 2019 | 6/6 | SYR4 |
| Trichloroacetic Acid | 23 µg/L No EPA limit set Main supplier: HENDERSON-KERR LAKE REG WTR · 14,937 people · 2019
Highest in the city: 65 µg/L — KNOLL TERRACE MHP · 254 people · 2018 | 5/6 | SYR4 |
| Monochloroacetic Acid | 3.4 µg/L No EPA limit set Main supplier: HENDERSON-KERR LAKE REG WTR · 14,937 people · 2019
Highest in the city: 37.7 µg/L — VANCE CO WATER DISTRICT PHASE 2 · 1,376 people · 2019 | 3/6 | SYR4 |
| Dichloroacetic Acid | 25.7 µg/L No EPA limit set Main supplier: HENDERSON-KERR LAKE REG WTR · 14,937 people · 2019
Highest in the city: 36 µg/L — KNOLL TERRACE MHP · 254 people · 2018 | 4/6 | SYR4 |
| Barium | 20.9 µg/L 1% of the EPA limit 2000 µg/L Main supplier: HENDERSON-KERR LAKE REG WTR · 14,937 people · 2019
Highest in the city: 26.75 µg/L — KNOLL TERRACE MHP · 254 people · 2018 | 3/6 | SYR4 |
| Bromodichloromethane | 23 µg/L No EPA limit set Main supplier: HENDERSON-KERR LAKE REG WTR · 14,937 people · 2019 | 5/6 | SYR4 |
| Monobromoacetic Acid | 5.815 µg/L No EPA limit set Main supplier: HENDERSON-KERR LAKE REG WTR · 14,937 people · 2019
Highest in the city: 16.2 µg/L — VANCE CO WATER DISTRICT PHASE 2 · 1,376 people · 2019 | 3/6 | SYR4 |
| Dibromochloromethane | 10.65 µg/L No EPA limit set Main supplier: HENDERSON-KERR LAKE REG WTR · 14,937 people · 2019 | 4/6 | SYR4 |
| Gross Alpha, Excl. Radon And U | 7.6685 pCi/L 51% of the EPA limit 15 pCi/L Highest in the city: KNOLL TERRACE MHP · 254 people · 2018 | 1/6 | SYR4 |
| Combined Uranium | 6.97185 µg/L 23% of the EPA limit 30 µg/L Highest in the city: KNOLL TERRACE MHP · 254 people · 2018 | 1/6 | SYR4 |
| Gross Beta Particle Activity | 5.42 pCi/L No EPA limit set Highest in the city: KNOLL TERRACE MHP · 254 people · 2018 | 2/6 | SYR4 |
| Lead | 1.3 µg/L 8.7% of the EPA limit 15 µg/L Main supplier: HENDERSON-KERR LAKE REG WTR · 14,937 people · 2018
Highest in the city: 5 µg/L — EDGEWOOD ESTATES · 48 people · 2018 | 3/6 | SYR4 |
| Dibromoacetic Acid | 2.7 µg/L No EPA limit set Main supplier: HENDERSON-KERR LAKE REG WTR · 14,937 people · 2019
Highest in the city: 3.04 µg/L — VANCE CO WATER DISTRICT PHASE 1 · 1,580 people · 2019 | 3/6 | SYR4 |
| Combined Radium (-226 And -228) | 2.295 pCi/L 46% of the EPA limit 5 pCi/L Highest in the city: KNOLL TERRACE MHP · 254 people · 2018 | 2/6 | SYR4 |
| Bromoform | 1.82 µg/L No EPA limit set Main supplier: HENDERSON-KERR LAKE REG WTR · 14,937 people · 2019 | 4/6 | SYR4 |
| Atrazine | 0.1400 µg/L 4.7% of the EPA limit 3 µg/L Main supplier: HENDERSON-KERR LAKE REG WTR · 14,937 people · 2019 | 1/6 | SYR4 |
| PFOS | 0.0048 µg/L No EPA limit set Main supplier: HENDERSON-KERR LAKE REG WTR · 14,937 people · 2024 | 1/6 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: HENDERSON-KERR LAKE REG WTR · 14,937 people · 2025 | 6/6 | 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 Henderson
| Supplier | Population served |
|---|---|
| HENDERSON-KERR LAKE REG WTR | 14,937 |
| VANCE CO WATER DISTRICT PHASE 1 | 1,580 |
| VANCE CO WATER DISTRICT PHASE 2 | 1,376 |
| KNOLL TERRACE MHP | 254 |
| HUNTER`S RIDGE S/D | 81 |
| EDGEWOOD ESTATES | 48 |
Frequently asked questions about Henderson tap water
Is Henderson tap water safe to drink?
EPA testing detected 24 contaminants in the water serving Henderson. 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 Henderson?
6 public water suppliers report drinking-water monitoring for Henderson, North Carolina to the EPA. Each is listed above with its population served.
What contaminants are in Henderson's water?
The contaminants EPA monitoring detected in Henderson include Nitrate, Nitrate-Nitrite, Copper, Fluoride, TTHM. 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.