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Tap water quality report

Hornell, NY

EPA monitoring detected 21 contaminants across the 1 water supplier serving Hornell. 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.

1
water supplier
9,870
people served
21
contaminants found
New York rankings Lead in New York PFAS in New York

What was found in Hornell'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
2790.5 µg/L 28%
of the EPA limit 10000 µg/L
Main supplier: HORNELL CITY · 9,870 people · 2019
1/1 SYR4
Nitrate-Nitrite
2625 µg/L 26%
of the EPA limit 10000 µg/L
Main supplier: HORNELL CITY · 9,870 people · 2019
1/1 SYR4
Fluoride
329.5 µg/L 8.2%
of the EPA limit 4000 µg/L
Main supplier: HORNELL CITY · 9,870 people · 2019
1/1 SYR4
Barium
100.55 µg/L 5%
of the EPA limit 2000 µg/L
Main supplier: HORNELL CITY · 9,870 people · 2019
1/1 SYR4
TTHM
78.705 µg/L 98%
of the EPA limit 80 µg/L
Main supplier: HORNELL CITY · 9,870 people · 2019
1/1 SYR4
Chloroform
58.35 µg/L
No EPA limit set
Main supplier: HORNELL CITY · 9,870 people · 2019
1/1 SYR4
Total Haloacetic Acids (HAA5)
50.395 µg/L 84%
of the EPA limit 60 µg/L
Main supplier: HORNELL CITY · 9,870 people · 2019
1/1 SYR4
Trichloroacetic Acid
30.24 µg/L
No EPA limit set
Main supplier: HORNELL CITY · 9,870 people · 2019
1/1 SYR4
Dichloroacetic Acid
22 µg/L
No EPA limit set
Main supplier: HORNELL CITY · 9,870 people · 2019
1/1 SYR4
Bromodichloromethane
16.505 µg/L
No EPA limit set
Main supplier: HORNELL CITY · 9,870 people · 2019
1/1 SYR4
Trichloroethylene
7.2 µg/L 144%
of the EPA limit, at the 95th percentile of samples — 5 µg/L
Main supplier: HORNELL CITY · 9,870 people · 2019
1/1 SYR4
Dibromochloromethane
3.812 µg/L
No EPA limit set
Main supplier: HORNELL CITY · 9,870 people · 2019
1/1 SYR4
Chromium
3.195 µg/L 3.2%
of the EPA limit 100 µg/L
Main supplier: HORNELL CITY · 9,870 people · 2019
1/1 SYR4
Monochloroacetic Acid
3.135 µg/L
No EPA limit set
Main supplier: HORNELL CITY · 9,870 people · 2019
1/1 SYR4
1,1,2-Trichloroethane
3.1 µg/L 62%
of the EPA limit 5 µg/L
Main supplier: HORNELL CITY · 9,870 people · 2019
1/1 SYR4
Dibromoacetic Acid
1.583 µg/L
No EPA limit set
Main supplier: HORNELL CITY · 9,870 people · 2019
1/1 SYR4
Combined Radium (-226 And -228)
1.455 pCi/L 29%
of the EPA limit 5 pCi/L
Main supplier: HORNELL CITY · 9,870 people · 2014
1/1 SYR4
Monobromoacetic Acid
1.3895 µg/L
No EPA limit set
Main supplier: HORNELL CITY · 9,870 people · 2019
1/1 SYR4
Tetrachloroethylene
0.9400 µg/L 19%
of the EPA limit 5 µg/L
Main supplier: HORNELL CITY · 9,870 people · 2019
1/1 SYR4
2,4-D
0.2390 µg/L 0.3%
of the EPA limit 70 µg/L
Main supplier: HORNELL CITY · 9,870 people · 2019
1/1 SYR4
Lead
0.0014 mg/L 9.3%
of the EPA limit 0.0150 mg/L
Main supplier: HORNELL CITY · 9,870 people · 2023
1/1 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 Hornell

SupplierPopulation served
HORNELL CITY 9,870

Frequently asked questions about Hornell tap water

Is Hornell tap water safe to drink?

EPA testing detected 21 contaminants in the water serving Hornell. 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 Hornell?

1 public water supplier report drinking-water monitoring for Hornell, New York to the EPA. Each is listed above with its population served.

What contaminants are in Hornell's water?

The contaminants EPA monitoring detected in Hornell include Nitrate, Nitrate-Nitrite, Fluoride, Barium, 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.