Tap WaterIndex

← Alabama

Tap water quality report

Huntsville, AL

EPA monitoring detected 23 contaminants across the 2 water suppliers serving Huntsville. 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.

2
water suppliers
429,207
people served
23
contaminants found
Alabama rankings Lead in Alabama PFAS in Alabama

What was found in Huntsville'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
2552.5 µg/L 26%
of the EPA limit 10000 µg/L
Main supplier: HUNTSVILLE UTILITIES WATER DEPT. · 310,107 people · 2019
Highest in the city: 4358 µg/L — MADISON COUNTY WATER DEPARTMENT · 119,100 people · 2019
2/2 SYR4
Nitrate
2960 µg/L 30%
of the EPA limit 10000 µg/L
Main supplier: HUNTSVILLE UTILITIES WATER DEPT. · 310,107 people · 2019
Highest in the city: 4250 µg/L — MADISON COUNTY WATER DEPARTMENT · 119,100 people · 2019
2/2 SYR4
Fluoride
816 µg/L 20%
of the EPA limit 4000 µg/L
Main supplier: HUNTSVILLE UTILITIES WATER DEPT. · 310,107 people · 2019
2/2 SYR4
Copper
181 µg/L 14%
of the EPA limit 1300 µg/L
Main supplier: HUNTSVILLE UTILITIES WATER DEPT. · 310,107 people · 2019
Highest in the city: 269.8 µg/L — MADISON COUNTY WATER DEPARTMENT · 119,100 people · 2019
2/2 SYR4
TTHM
52 µg/L 65%
of the EPA limit 80 µg/L
Main supplier: HUNTSVILLE UTILITIES WATER DEPT. · 310,107 people · 2019
Highest in the city: 55 µg/L — MADISON COUNTY WATER DEPARTMENT · 119,100 people · 2019
2/2 SYR4
Total Haloacetic Acids (HAA5)
40.35 µg/L 67%
of the EPA limit 60 µg/L
Main supplier: HUNTSVILLE UTILITIES WATER DEPT. · 310,107 people · 2019
Highest in the city: 47.48 µg/L — MADISON COUNTY WATER DEPARTMENT · 119,100 people · 2019
2/2 SYR4
Lead
30.5 µg/L 203%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
Main supplier: HUNTSVILLE UTILITIES WATER DEPT. · 310,107 people · 2019
2/2 SYR4
Barium
26 µg/L 1.3%
of the EPA limit 2000 µg/L
Main supplier: HUNTSVILLE UTILITIES WATER DEPT. · 310,107 people · 2019
1/2 SYR4
Chloroform
22.05 µg/L
No EPA limit set
Main supplier: HUNTSVILLE UTILITIES WATER DEPT. · 310,107 people · 2019
2/2 SYR4
Bromodichloromethane
7.356 µg/L
No EPA limit set
Main supplier: HUNTSVILLE UTILITIES WATER DEPT. · 310,107 people · 2019
2/2 SYR4
Tetrachloroethylene
4.4425 µg/L 89%
of the EPA limit 5 µg/L
Main supplier: HUNTSVILLE UTILITIES WATER DEPT. · 310,107 people · 2019
1/2 SYR4
Gross Alpha, Excl. Radon And U
3.635 pCi/L 24%
of the EPA limit 15 pCi/L
Main supplier: HUNTSVILLE UTILITIES WATER DEPT. · 310,107 people · 2018
2/2 SYR4
Trichloroethylene
3.382 µg/L 68%
of the EPA limit 5 µg/L
Main supplier: HUNTSVILLE UTILITIES WATER DEPT. · 310,107 people · 2019
1/2 SYR4
Dibromochloromethane
2.248 µg/L
No EPA limit set
Main supplier: HUNTSVILLE UTILITIES WATER DEPT. · 310,107 people · 2019
2/2 SYR4
Toluene
0.7700 µg/L 0.1%
of the EPA limit 1000 µg/L
Main supplier: HUNTSVILLE UTILITIES WATER DEPT. · 310,107 people · 2019
1/2 SYR4
Carbon Tetrachloride
0.5400 µg/L 11%
of the EPA limit 5 µg/L
Main supplier: HUNTSVILLE UTILITIES WATER DEPT. · 310,107 people · 2019
1/2 SYR4
Pfba
0.0110 µg/L
No EPA limit set
Main supplier: HUNTSVILLE UTILITIES WATER DEPT. · 310,107 people · 2023
2/2 UCMR-5
PFOS
0.0090 µg/L
No EPA limit set
Main supplier: HUNTSVILLE UTILITIES WATER DEPT. · 310,107 people · 2023
2/2 UCMR-5
PFBS
0.0062 µg/L
No EPA limit set
Main supplier: HUNTSVILLE UTILITIES WATER DEPT. · 310,107 people · 2023
2/2 UCMR-5
Pfpea
0.0053 µg/L
No EPA limit set
Main supplier: HUNTSVILLE UTILITIES WATER DEPT. · 310,107 people · 2023
1/2 UCMR-5
PFOA
0.0047 µg/L
No EPA limit set
Main supplier: HUNTSVILLE UTILITIES WATER DEPT. · 310,107 people · 2023
1/2 UCMR-5
Pfhxa
0.0044 µg/L
No EPA limit set
Main supplier: HUNTSVILLE UTILITIES WATER DEPT. · 310,107 people · 2023
1/2 UCMR-5
Lead
0.0010 mg/L 6.7%
of the EPA limit 0.0150 mg/L
Main supplier: HUNTSVILLE UTILITIES WATER DEPT. · 310,107 people · 2023
Highest in the city: 0.0024 mg/L — MADISON COUNTY WATER DEPARTMENT · 119,100 people · 2023
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 Huntsville

SupplierPopulation served
HUNTSVILLE UTILITIES WATER DEPT. 310,107
MADISON COUNTY WATER DEPARTMENT 119,100

Frequently asked questions about Huntsville tap water

Is Huntsville tap water safe to drink?

EPA testing detected 23 contaminants in the water serving Huntsville. 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 Huntsville?

2 public water suppliers report drinking-water monitoring for Huntsville, Alabama to the EPA. Each is listed above with its population served.

What contaminants are in Huntsville's water?

The contaminants EPA monitoring detected in Huntsville include Nitrate-Nitrite, Nitrate, Fluoride, Copper, 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.