← North Hempstead, NY

Tap water quality report

ZIP 11042 — North Hempstead, NY

EPA monitoring across the 1 water supplier serving ZIP 11042 in North Hempstead, NY detected 37 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
43,000
people served
37
contaminants found

What was found in ZIP 11042

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-Nitrite
8470 µg/L 85%
of the EPA limit 10000 µg/L
Main supplier: MANHASSET LAKEVILLE WD · 43,000 people · 2019
1/1 SYR4
Nitrate
8290 µg/L 83%
of the EPA limit 10000 µg/L
Main supplier: MANHASSET LAKEVILLE WD · 43,000 people · 2019
1/1 SYR4
Nitrite
2382 µg/L 238%
of the EPA limit, at the 95th percentile of samples — 1000 µg/L
Main supplier: MANHASSET LAKEVILLE WD · 43,000 people · 2019
1/1 SYR4
Fluoride
173 µg/L 4.3%
of the EPA limit 4000 µg/L
Main supplier: MANHASSET LAKEVILLE WD · 43,000 people · 2019
1/1 SYR4
Copper
99.95 µg/L 7.7%
of the EPA limit 1300 µg/L
Main supplier: MANHASSET LAKEVILLE WD · 43,000 people · 2019
1/1 SYR4
Barium
36.63 µg/L 1.8%
of the EPA limit 2000 µg/L
Main supplier: MANHASSET LAKEVILLE WD · 43,000 people · 2019
1/1 SYR4
cis-1,2-Dichloroethylene
12.46 µg/L 18%
of the EPA limit 70 µg/L
Main supplier: MANHASSET LAKEVILLE WD · 43,000 people · 2019
1/1 SYR4
Combined Radium (-226 And -228)
8.8544 pCi/L 177%
of the EPA limit, at the 95th percentile of samples — 5 pCi/L
Main supplier: MANHASSET LAKEVILLE WD · 43,000 people · 2019
1/1 SYR4
Lead
8.242 µg/L 55%
of the EPA limit 15 µg/L
Main supplier: MANHASSET LAKEVILLE WD · 43,000 people · 2019
1/1 SYR4
Trichloroethylene
7.5 µg/L 150%
of the EPA limit, at the 95th percentile of samples — 5 µg/L
Main supplier: MANHASSET LAKEVILLE WD · 43,000 people · 2019
1/1 SYR4
Combined Uranium
5.45713 µg/L 18%
of the EPA limit 30 µg/L
Main supplier: MANHASSET LAKEVILLE WD · 43,000 people · 2019
1/1 SYR4
Gross Beta Particle Activity
4.993 pCi/L
No EPA limit set
Main supplier: MANHASSET LAKEVILLE WD · 43,000 people · 2019
1/1 SYR4
Tetrachloroethylene
4.035 µg/L 81%
of the EPA limit 5 µg/L
Main supplier: MANHASSET LAKEVILLE WD · 43,000 people · 2019
1/1 SYR4
Selenium
2.9575 µg/L 5.9%
of the EPA limit 50 µg/L
Main supplier: MANHASSET LAKEVILLE WD · 43,000 people · 2019
1/1 SYR4
Chromium
2.725 µg/L 2.7%
of the EPA limit 100 µg/L
Main supplier: MANHASSET LAKEVILLE WD · 43,000 people · 2019
1/1 SYR4
Bromoform
2.22 µg/L
No EPA limit set
Main supplier: MANHASSET LAKEVILLE WD · 43,000 people · 2019
1/1 SYR4
Gross Alpha, Excl. Radon And U
1.903 pCi/L 13%
of the EPA limit 15 pCi/L
Main supplier: MANHASSET LAKEVILLE WD · 43,000 people · 2019
1/1 SYR4
TTHM
1.816 µg/L 2.3%
of the EPA limit 80 µg/L
Main supplier: MANHASSET LAKEVILLE WD · 43,000 people · 2019
1/1 SYR4
Total Haloacetic Acids (HAA5)
1.8 µg/L 3%
of the EPA limit 60 µg/L
Main supplier: MANHASSET LAKEVILLE WD · 43,000 people · 2019
1/1 SYR4
Dibromoacetic Acid
1.795 µg/L
No EPA limit set
Main supplier: MANHASSET LAKEVILLE WD · 43,000 people · 2019
1/1 SYR4
1,1-Dichloroethylene
1.5 µg/L 21%
of the EPA limit 7 µg/L
Main supplier: MANHASSET LAKEVILLE WD · 43,000 people · 2019
1/1 SYR4
1,1,1-Trichloroethane
1.31 µg/L 0.7%
of the EPA limit 200 µg/L
Main supplier: MANHASSET LAKEVILLE WD · 43,000 people · 2019
1/1 SYR4
Chloroform
0.9520 µg/L
No EPA limit set
Main supplier: MANHASSET LAKEVILLE WD · 43,000 people · 2019
1/1 SYR4
Antimony, Total
0.8700 µg/L 14%
of the EPA limit 6 µg/L
Main supplier: MANHASSET LAKEVILLE WD · 43,000 people · 2019
1/1 SYR4
Dibromochloromethane
0.7900 µg/L
No EPA limit set
Main supplier: MANHASSET LAKEVILLE WD · 43,000 people · 2019
1/1 SYR4
Di(2-ethylhexyl) Phthalate
0.7300 µg/L 12%
of the EPA limit 6 µg/L
Main supplier: MANHASSET LAKEVILLE WD · 43,000 people · 2018
1/1 SYR4
1,1,2-Trichloroethane
0.6990 µg/L 14%
of the EPA limit 5 µg/L
Main supplier: MANHASSET LAKEVILLE WD · 43,000 people · 2019
1/1 SYR4
Toluene
0.6300 µg/L 0.1%
of the EPA limit 1000 µg/L
Main supplier: MANHASSET LAKEVILLE WD · 43,000 people · 2019
1/1 SYR4
Carbon Tetrachloride
0.5950 µg/L 12%
of the EPA limit 5 µg/L
Main supplier: MANHASSET LAKEVILLE WD · 43,000 people · 2019
1/1 SYR4
1,2-Dichloroethane
0.5100 µg/L 10%
of the EPA limit 5 µg/L
Main supplier: MANHASSET LAKEVILLE WD · 43,000 people · 2019
1/1 SYR4
Bromodichloromethane
0.5000 µg/L
No EPA limit set
Main supplier: MANHASSET LAKEVILLE WD · 43,000 people · 2019
1/1 SYR4
PFNA
0.0190 µg/L
No EPA limit set
Main supplier: MANHASSET LAKEVILLE WD · 43,000 people · 2025
1/1 UCMR-5
Pfpea
0.0074 µg/L
No EPA limit set
Main supplier: MANHASSET LAKEVILLE WD · 43,000 people · 2025
1/1 UCMR-5
PFOA
0.0053 µg/L
No EPA limit set
Main supplier: MANHASSET LAKEVILLE WD · 43,000 people · 2025
1/1 UCMR-5
Pfba
0.0052 µg/L
No EPA limit set
Main supplier: MANHASSET LAKEVILLE WD · 43,000 people · 2025
1/1 UCMR-5
Pfhxa
0.0039 µg/L
No EPA limit set
Main supplier: MANHASSET LAKEVILLE WD · 43,000 people · 2025
1/1 UCMR-5
Lead
0.0016 mg/L 11%
of the EPA limit 0.0150 mg/L
Main supplier: MANHASSET LAKEVILLE WD · 43,000 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.

Water suppliers serving ZIP 11042

SupplierStatePopulation served
MANHASSET LAKEVILLE WD NY 43,000

Frequently asked questions about ZIP 11042 tap water

Is the tap water in ZIP 11042 safe to drink?

EPA testing detected 37 contaminants across the water suppliers serving ZIP 11042. 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 11042?

1 public water supplier report EPA drinking-water monitoring for ZIP 11042. Each is listed above with its population served.

What contaminants are in ZIP 11042's water?

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