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Tap water quality report

Henderson, KY

EPA monitoring detected 16 contaminants across the 3 water suppliers serving Henderson. A detection doesn't automatically mean the water is unsafe — see the level at the main supplier for each below, with its EPA source and period.

3
water suppliers
49,206
people served
16
contaminants found
Kentucky rankings Lead in Kentucky PFAS in Kentucky

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.

ContaminantLevel vs EPA limitSuppliersSource
Nitrate-Nitrite
2254.5 µg/L 23%
of the EPA limit 10000 µg/L
Main supplier: HENDERSON WATER UTILITY/NORTH · 31,705 people · 2018
Highest in the city: 2835 µg/L — HENDERSON WATER UTILITY/SOUTH · 54 people · 2018
2/3 SYR4
Nitrate
2247.5 µg/L 22%
of the EPA limit 10000 µg/L
Main supplier: HENDERSON WATER UTILITY/NORTH · 31,705 people · 2019
Highest in the city: 2627.5 µg/L — HENDERSON WATER UTILITY/SOUTH · 54 people · 2019
2/3 SYR4
Fluoride
1130 µg/L 28%
of the EPA limit 4000 µg/L
Main supplier: HENDERSON WATER UTILITY/NORTH · 31,705 people · 2019
2/3 SYR4
Chlorite
580 µg/L 58%
of the EPA limit 1000 µg/L
Main supplier: HENDERSON WATER UTILITY/NORTH · 31,705 people · 2019
Highest in the city: 620 µg/L — HENDERSON WATER UTILITY/SOUTH · 54 people · 2019
2/3 SYR4
Copper
168.2 µg/L 13%
of the EPA limit 1300 µg/L
Main supplier: HENDERSON WATER UTILITY/NORTH · 31,705 people · 2019
Highest in the city: 180.7 µg/L — HENDERSON COUNTY WATER DISTRICT · 17,447 people · 2018
3/3 SYR4
TTHM
66.83 µg/L 84%
of the EPA limit 80 µg/L
Main supplier: HENDERSON WATER UTILITY/NORTH · 31,705 people · 2019
Highest in the city: 106.15 µg/L — HENDERSON COUNTY WATER DISTRICT · 17,447 people · 2019
3/3 SYR4
Total Haloacetic Acids (HAA5)
61.92 µg/L 103%
of the EPA limit, at the 95th percentile of samples — 60 µg/L
Main supplier: HENDERSON WATER UTILITY/NORTH · 31,705 people · 2019
Highest in the city: 68.075 µg/L — HENDERSON COUNTY WATER DISTRICT · 17,447 people · 2019
3/3 SYR4
Barium
64.9 µg/L 3.2%
of the EPA limit 2000 µg/L
Main supplier: HENDERSON WATER UTILITY/NORTH · 31,705 people · 2019
2/3 SYR4
Nitrite
47 µg/L 4.7%
of the EPA limit 1000 µg/L
Highest in the city: HENDERSON WATER UTILITY/SOUTH · 54 people · 2018
1/3 SYR4
Lead
1.725 µg/L 12%
of the EPA limit 15 µg/L
Main supplier: HENDERSON WATER UTILITY/NORTH · 31,705 people · 2018
Highest in the city: 7.7 µg/L — HENDERSON COUNTY WATER DISTRICT · 17,447 people · 2018
3/3 SYR4
Di(2-ethylhexyl) Phthalate
3.62 µg/L 60%
of the EPA limit 6 µg/L
Main supplier: HENDERSON WATER UTILITY/NORTH · 31,705 people · 2017
2/3 SYR4
Simazine
1.5 µg/L 38%
of the EPA limit 4 µg/L
Highest in the city: HENDERSON WATER UTILITY/SOUTH · 54 people · 2019
1/3 SYR4
Combined Radium (-226 And -228)
1.1 pCi/L 22%
of the EPA limit 5 pCi/L
Highest in the city: HENDERSON WATER UTILITY/SOUTH · 54 people · 2014
1/3 SYR4
Atrazine
0.8200 µg/L 27%
of the EPA limit 3 µg/L
Main supplier: HENDERSON WATER UTILITY/NORTH · 31,705 people · 2017
2/3 SYR4
2,4-D
0.7290 µg/L 1%
of the EPA limit 70 µg/L
Highest in the city: HENDERSON WATER UTILITY/SOUTH · 54 people · 2019
1/3 SYR4
Lead
0.00043 mg/L 2.8%
of the EPA limit 0.0150 mg/L
Main supplier: HENDERSON WATER UTILITY/NORTH · 31,705 people · 2024
Highest in the city: 0.0010 mg/L — HENDERSON WATER UTILITY/SOUTH · 54 people · 2025
3/3 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

SupplierPopulation served
HENDERSON WATER UTILITY/NORTH 31,705
HENDERSON COUNTY WATER DISTRICT 17,447
HENDERSON WATER UTILITY/SOUTH 54

Frequently asked questions about Henderson tap water

Is Henderson tap water safe to drink?

EPA testing detected 16 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?

3 public water suppliers report drinking-water monitoring for Henderson, Kentucky 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-Nitrite, Nitrate, Fluoride, Chlorite, Copper. 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.