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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 highest level found 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 highest level seen across the city's suppliers, the EPA limit for each, and where the figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Nitrate
4430 µg/L 44%
of the EPA limit 10000 µg/L
 2/2 SYR4
Nitrate-Nitrite
4430 µg/L 44%
of the EPA limit 10000 µg/L
 2/2 SYR4
Fluoride
930 µg/L 23%
of the EPA limit 4000 µg/L
 2/2 SYR4
Copper
410 µg/L 32%
of the EPA limit 1300 µg/L
 2/2 SYR4
TTHM
90 µg/L 113%
of the EPA limit, in the worst sample — 80 µg/L
 2/2 SYR4
Total Haloacetic Acids (HAA5)
73.3 µg/L 122%
of the EPA limit, in the worst sample — 60 µg/L
 2/2 SYR4
Lead
37 µg/L 247%
of the EPA limit, in the worst sample — 15 µg/L
 2/2 SYR4
Chloroform
30.4 µg/L
No EPA limit set
 2/2 SYR4
Barium
26 µg/L 1.3%
of the EPA limit 2000 µg/L
 1/2 SYR4
Tetrachloroethylene
9.4 µg/L 188%
of the EPA limit, in the worst sample — 5 µg/L
 1/2 SYR4
Bromodichloromethane
7.73 µg/L
No EPA limit set
 2/2 SYR4
Dibromochloromethane
4.4 µg/L
No EPA limit set
 2/2 SYR4
Gross Alpha, Excl. Radon And U
4.1 pCi/L 27%
of the EPA limit 15 pCi/L
 2/2 SYR4
Trichloroethylene
3.56 µg/L 71%
of the EPA limit 5 µg/L
 1/2 SYR4
Toluene
0.7700 µg/L 0.1%
of the EPA limit 1000 µg/L
 1/2 SYR4
Carbon Tetrachloride
0.5400 µg/L 11%
of the EPA limit 5 µg/L
 1/2 SYR4
Pfba
0.0110 µg/L
No EPA limit set
 2/2 UCMR-5
PFOS
0.0090 µg/L
No EPA limit set
 2/2 UCMR-5
PFBS
0.0062 µg/L
No EPA limit set
 2/2 UCMR-5
Pfpea
0.0053 µg/L
No EPA limit set
 1/2 UCMR-5
PFOA
0.0047 µg/L
No EPA limit set
 1/2 UCMR-5
Pfhxa
0.0044 µg/L
No EPA limit set
 1/2 UCMR-5
Lead
0.0024 mg/L 16%
of the EPA limit 0.0150 mg/L
 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 single worst sample on record — 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, Nitrate-Nitrite, Fluoride, Copper, TTHM. The full list, with the highest level found 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.