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Tap water quality report

Cornwall-On-Hudson, NY

EPA monitoring detected 11 contaminants across the 1 water supplier serving Cornwall-On-Hudson. 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
9,700
people served
11
contaminants found
New York rankings Lead in New York PFAS in New York

What was found in Cornwall-On-Hudson'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
810 µg/L 8.1%
of the EPA limit 10000 µg/L
Main supplier: CORNWALL-ON-HUDSON · 9,700 people · 2019
1/1 SYR4
Total Haloacetic Acids (HAA5)
38.24 µg/L 64%
of the EPA limit 60 µg/L
Main supplier: CORNWALL-ON-HUDSON · 9,700 people · 2019
1/1 SYR4
TTHM
31.7 µg/L 40%
of the EPA limit 80 µg/L
Main supplier: CORNWALL-ON-HUDSON · 9,700 people · 2019
1/1 SYR4
Barium
10.35 µg/L 0.5%
of the EPA limit 2000 µg/L
Main supplier: CORNWALL-ON-HUDSON · 9,700 people · 2019
1/1 SYR4
Cyanide
6 µg/L 3%
of the EPA limit 200 µg/L
Main supplier: CORNWALL-ON-HUDSON · 9,700 people · 2019
1/1 SYR4
Dalapon
1.9 µg/L 1%
of the EPA limit 200 µg/L
Main supplier: CORNWALL-ON-HUDSON · 9,700 people · 2019
1/1 SYR4
Combined Radium (-226 And -228)
1.1 pCi/L 22%
of the EPA limit 5 pCi/L
Main supplier: CORNWALL-ON-HUDSON · 9,700 people · 2019
1/1 SYR4
Antimony, Total
0.5100 µg/L 8.5%
of the EPA limit 6 µg/L
Main supplier: CORNWALL-ON-HUDSON · 9,700 people · 2019
1/1 SYR4
Hexachlorocyclopentadiene
0.1100 µg/L 0.2%
of the EPA limit 50 µg/L
Main supplier: CORNWALL-ON-HUDSON · 9,700 people · 2019
1/1 SYR4
Nmefosaa
0.0148 µg/L
No EPA limit set
Main supplier: CORNWALL-ON-HUDSON · 9,700 people · 2025
1/1 UCMR-5
Lead
0.0010 mg/L 6.7%
of the EPA limit 0.0150 mg/L
Main supplier: CORNWALL-ON-HUDSON · 9,700 people · 2025
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 Cornwall-On-Hudson

SupplierPopulation served
CORNWALL-ON-HUDSON 9,700

Frequently asked questions about Cornwall-On-Hudson tap water

Is Cornwall-On-Hudson tap water safe to drink?

EPA testing detected 11 contaminants in the water serving Cornwall-On-Hudson. 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 Cornwall-On-Hudson?

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

What contaminants are in Cornwall-On-Hudson's water?

The contaminants EPA monitoring detected in Cornwall-On-Hudson include Nitrate, Total Haloacetic Acids (HAA5), TTHM, Barium, Cyanide. 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.