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Tap water quality report

ZIP 10931 — Clarkstown, NY

EPA monitoring across the 1 water supplier serving ZIP 10931 in Clarkstown, NY detected 48 contaminants. A detection doesn't automatically mean the water is unsafe — see the level at the main supplier below, with the EPA limit for each.

1
water supplier
270,000
people served
48
contaminants found

What was found in ZIP 10931

The level at this ZIP's main supplier, the highest level anywhere in it, the EPA limit for each, and where the figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Nitrate
3210 µg/L 32%
of the EPA limit 10000 µg/L
Main supplier: VEOLIA WATER NEW YORK · 270,000 people · 2018
1/1 SYR4
Nitrate-Nitrite
3207.5 µg/L 32%
of the EPA limit 10000 µg/L
Main supplier: VEOLIA WATER NEW YORK · 270,000 people · 2018
1/1 SYR4
Nitrite
1430 µg/L 143%
of the EPA limit, at the 95th percentile of samples — 1000 µg/L
Main supplier: VEOLIA WATER NEW YORK · 270,000 people · 2018
1/1 SYR4
Toluene
1060 µg/L 106%
of the EPA limit, at the 95th percentile of samples — 1000 µg/L
Main supplier: VEOLIA WATER NEW YORK · 270,000 people · 2019
1/1 SYR4
Barium
474 µg/L 24%
of the EPA limit 2000 µg/L
Main supplier: VEOLIA WATER NEW YORK · 270,000 people · 2019
1/1 SYR4
Fluoride
312 µg/L 7.8%
of the EPA limit 4000 µg/L
Main supplier: VEOLIA WATER NEW YORK · 270,000 people · 2019
1/1 SYR4
TTHM
97.06 µg/L 121%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
Main supplier: VEOLIA WATER NEW YORK · 270,000 people · 2019
1/1 SYR4
Chloroform
72.36 µg/L
No EPA limit set
Main supplier: VEOLIA WATER NEW YORK · 270,000 people · 2019
1/1 SYR4
Total Haloacetic Acids (HAA5)
56.08 µg/L 93%
of the EPA limit 60 µg/L
Main supplier: VEOLIA WATER NEW YORK · 270,000 people · 2019
1/1 SYR4
Trichloroacetic Acid
31.85 µg/L
No EPA limit set
Main supplier: VEOLIA WATER NEW YORK · 270,000 people · 2019
1/1 SYR4
Dichloroacetic Acid
25.92 µg/L
No EPA limit set
Main supplier: VEOLIA WATER NEW YORK · 270,000 people · 2019
1/1 SYR4
Bromodichloromethane
22.1 µg/L
No EPA limit set
Main supplier: VEOLIA WATER NEW YORK · 270,000 people · 2019
1/1 SYR4
Lithium
19.1 µg/L
No EPA limit set
Main supplier: VEOLIA WATER NEW YORK · 270,000 people · 2025
1/1 UCMR-5
Tetrachloroethylene
15.995 µg/L 320%
of the EPA limit, at the 95th percentile of samples — 5 µg/L
Main supplier: VEOLIA WATER NEW YORK · 270,000 people · 2019
1/1 SYR4
Chromium
13.595 µg/L 14%
of the EPA limit 100 µg/L
Main supplier: VEOLIA WATER NEW YORK · 270,000 people · 2019
1/1 SYR4
Cyanide
12.85 µg/L 6.4%
of the EPA limit 200 µg/L
Main supplier: VEOLIA WATER NEW YORK · 270,000 people · 2019
1/1 SYR4
Trichloroethylene
12.66 µg/L 253%
of the EPA limit, at the 95th percentile of samples — 5 µg/L
Main supplier: VEOLIA WATER NEW YORK · 270,000 people · 2019
1/1 SYR4
Arsenic
6.979 µg/L 70%
of the EPA limit 10 µg/L
Main supplier: VEOLIA WATER NEW YORK · 270,000 people · 2019
1/1 SYR4
Monochloroacetic Acid
6.925 µg/L
No EPA limit set
Main supplier: VEOLIA WATER NEW YORK · 270,000 people · 2019
1/1 SYR4
Selenium
6.34 µg/L 13%
of the EPA limit 50 µg/L
Main supplier: VEOLIA WATER NEW YORK · 270,000 people · 2019
1/1 SYR4
Dibromochloromethane
6.335 µg/L
No EPA limit set
Main supplier: VEOLIA WATER NEW YORK · 270,000 people · 2019
1/1 SYR4
Cadmium
5.9 µg/L 118%
of the EPA limit, at the 95th percentile of samples — 5 µg/L
Main supplier: VEOLIA WATER NEW YORK · 270,000 people · 2019
1/1 SYR4
Dibromoacetic Acid
5.53 µg/L
No EPA limit set
Main supplier: VEOLIA WATER NEW YORK · 270,000 people · 2019
1/1 SYR4
cis-1,2-Dichloroethylene
3.2 µg/L 4.6%
of the EPA limit 70 µg/L
Main supplier: VEOLIA WATER NEW YORK · 270,000 people · 2019
1/1 SYR4
Bromoform
2.42 µg/L
No EPA limit set
Main supplier: VEOLIA WATER NEW YORK · 270,000 people · 2019
1/1 SYR4
Di(2-ethylhexyl) Phthalate
2.4 µg/L 40%
of the EPA limit 6 µg/L
Main supplier: VEOLIA WATER NEW YORK · 270,000 people · 2019
1/1 SYR4
Monobromoacetic Acid
1.27 µg/L
No EPA limit set
Main supplier: VEOLIA WATER NEW YORK · 270,000 people · 2019
1/1 SYR4
Antimony, Total
1.164 µg/L 19%
of the EPA limit 6 µg/L
Main supplier: VEOLIA WATER NEW YORK · 270,000 people · 2019
1/1 SYR4
Benzene
1.1 µg/L 22%
of the EPA limit 5 µg/L
Main supplier: VEOLIA WATER NEW YORK · 270,000 people · 2019
1/1 SYR4
Beryllium, Total
0.9580 µg/L 24%
of the EPA limit 4 µg/L
Main supplier: VEOLIA WATER NEW YORK · 270,000 people · 2019
1/1 SYR4
Mercury
0.9140 µg/L 46%
of the EPA limit 2 µg/L
Main supplier: VEOLIA WATER NEW YORK · 270,000 people · 2019
1/1 SYR4
1,1,2-Trichloroethane
0.7000 µg/L 14%
of the EPA limit 5 µg/L
Main supplier: VEOLIA WATER NEW YORK · 270,000 people · 2019
1/1 SYR4
1,2-Dichloroethane
0.5000 µg/L 10%
of the EPA limit 5 µg/L
Main supplier: VEOLIA WATER NEW YORK · 270,000 people · 2019
1/1 SYR4
Carbon Tetrachloride
0.4875 µg/L 9.8%
of the EPA limit 5 µg/L
Main supplier: VEOLIA WATER NEW YORK · 270,000 people · 2019
1/1 SYR4
Thallium, Total
0.3080 µg/L 15%
of the EPA limit 2 µg/L
Main supplier: VEOLIA WATER NEW YORK · 270,000 people · 2019
1/1 SYR4
Chlordane
0.3050 µg/L 15%
of the EPA limit 2 µg/L
Main supplier: VEOLIA WATER NEW YORK · 270,000 people · 2019
1/1 SYR4
Picloram
0.2430 µg/L 0%
of the EPA limit 500 µg/L
Main supplier: VEOLIA WATER NEW YORK · 270,000 people · 2019
1/1 SYR4
PFOA
0.0140 µg/L
No EPA limit set
Main supplier: VEOLIA WATER NEW YORK · 270,000 people · 2025
1/1 UCMR-5
6:2 Fts
0.0120 µg/L
No EPA limit set
Main supplier: VEOLIA WATER NEW YORK · 270,000 people · 2025
1/1 UCMR-5
Pfpea
0.0100 µg/L
No EPA limit set
Main supplier: VEOLIA WATER NEW YORK · 270,000 people · 2025
1/1 UCMR-5
Pfhxa
0.0076 µg/L
No EPA limit set
Main supplier: VEOLIA WATER NEW YORK · 270,000 people · 2025
1/1 UCMR-5
Pfba
0.0068 µg/L
No EPA limit set
Main supplier: VEOLIA WATER NEW YORK · 270,000 people · 2025
1/1 UCMR-5
PFOS
0.0068 µg/L
No EPA limit set
Main supplier: VEOLIA WATER NEW YORK · 270,000 people · 2025
1/1 UCMR-5
PFHXS
0.0062 µg/L
No EPA limit set
Main supplier: VEOLIA WATER NEW YORK · 270,000 people · 2025
1/1 UCMR-5
Pfhpa
0.0056 µg/L
No EPA limit set
Main supplier: VEOLIA WATER NEW YORK · 270,000 people · 2025
1/1 UCMR-5
PFNA
0.0054 µg/L
No EPA limit set
Main supplier: VEOLIA WATER NEW YORK · 270,000 people · 2025
1/1 UCMR-5
PFBS
0.0050 µg/L
No EPA limit set
Main supplier: VEOLIA WATER NEW YORK · 270,000 people · 2025
1/1 UCMR-5
Lead
0.0030 mg/L 20%
of the EPA limit 0.0150 mg/L
Main supplier: VEOLIA WATER NEW YORK · 270,000 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.

Water suppliers serving ZIP 10931

SupplierStatePopulation served
VEOLIA WATER NEW YORK NY 270,000

Frequently asked questions about ZIP 10931 tap water

Is the tap water in ZIP 10931 safe to drink?

EPA testing detected 48 contaminants across the water suppliers serving ZIP 10931. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and your utility's annual Consumer Confidence Report for the official status.

Which water suppliers serve ZIP 10931?

1 public water supplier report EPA drinking-water monitoring for ZIP 10931. Each is listed above with its population served.

What contaminants are in ZIP 10931's water?

EPA monitoring detected Nitrate, Nitrate-Nitrite, Nitrite, Toluene, Barium, and others across this ZIP's suppliers. The full list with levels and sources is above.