← Hempstead, NY

Tap water quality report

ZIP 11559 — Hempstead, NY

EPA monitoring across the 1 water supplier serving ZIP 11559 in Hempstead, NY detected 34 contaminants. A detection doesn't automatically mean the water is unsafe — see the highest level found below, with the EPA limit for each.

1
water supplier
220,000
people served
34
contaminants found

What was found in ZIP 11559

The highest level seen across the suppliers serving this ZIP, the EPA limit for each, and where the figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Copper
570 µg/L 44%
of the EPA limit 1300 µg/L
1/1 SYR4
Nitrate
290 µg/L 2.9%
of the EPA limit 10000 µg/L
1/1 SYR4
Nitrate-Nitrite
290 µg/L 2.9%
of the EPA limit 10000 µg/L
1/1 SYR4
Barium
200 µg/L 10%
of the EPA limit 2000 µg/L
1/1 SYR4
Fluoride
140 µg/L 3.5%
of the EPA limit 4000 µg/L
1/1 SYR4
Lead
53 µg/L 353%
of the EPA limit, in the worst sample — 15 µg/L
1/1 SYR4
TTHM
14.9 µg/L 19%
of the EPA limit 80 µg/L
1/1 SYR4
Lithium
14.9 µg/L
No EPA limit set
1/1 UCMR-5
Arsenic
14 µg/L 140%
of the EPA limit, in the worst sample — 10 µg/L
1/1 SYR4
Tetrachloroethylene
13.7 µg/L 274%
of the EPA limit, in the worst sample — 5 µg/L
1/1 SYR4
Chromium
10 µg/L 10%
of the EPA limit 100 µg/L
1/1 SYR4
Combined Uranium
8.3 µg/L 28%
of the EPA limit 30 µg/L
1/1 SYR4
Gross Beta Particle Activity
5.94 pCi/L
No EPA limit set
1/1 SYR4
Gross Alpha, Excl. Radon And U
5.44 pCi/L 36%
of the EPA limit 15 pCi/L
1/1 SYR4
Chloroform
5.1 µg/L
No EPA limit set
1/1 SYR4
Combined Radium (-226 And -228)
5 pCi/L 100%
of the EPA limit 5 pCi/L
1/1 SYR4
Dibromochloromethane
4.4 µg/L
No EPA limit set
1/1 SYR4
Bromodichloromethane
4.1 µg/L
No EPA limit set
1/1 SYR4
Bromoform
3.6 µg/L
No EPA limit set
1/1 SYR4
Monochloroacetic Acid
3.2 µg/L
No EPA limit set
1/1 SYR4
Trichloroethylene
2.2 µg/L 44%
of the EPA limit 5 µg/L
1/1 SYR4
Thallium, Total
2 µg/L 100%
of the EPA limit 2 µg/L
1/1 SYR4
Di(2-ethylhexyl) Phthalate
1.7 µg/L 28%
of the EPA limit 6 µg/L
1/1 SYR4
Total Haloacetic Acids (HAA5)
1.6 µg/L 2.7%
of the EPA limit 60 µg/L
1/1 SYR4
Trichloroacetic Acid
1.6 µg/L
No EPA limit set
1/1 SYR4
Monobromoacetic Acid
1.4 µg/L
No EPA limit set
1/1 SYR4
Dibromoacetic Acid
1.3 µg/L
No EPA limit set
1/1 SYR4
cis-1,2-Dichloroethylene
1.1 µg/L 1.6%
of the EPA limit 70 µg/L
1/1 SYR4
Antimony, Total
0.8100 µg/L 14%
of the EPA limit 6 µg/L
1/1 SYR4
Beryllium, Total
0.5000 µg/L 13%
of the EPA limit 4 µg/L
1/1 SYR4
PFHXS
0.0063 µg/L
No EPA limit set
1/1 UCMR-5
PFOS
0.0051 µg/L
No EPA limit set
1/1 UCMR-5
Lead
0.0042 mg/L 28%
of the EPA limit 0.0150 mg/L
1/1 LCR
PFNA
0.0041 µg/L
No EPA limit set
1/1 UCMR-5
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.

Water suppliers serving ZIP 11559

SupplierStatePopulation served
LIBERTY UTILITIES NEW YORK - LYNBROOK NY 220,000

Frequently asked questions about ZIP 11559 tap water

Is the tap water in ZIP 11559 safe to drink?

EPA testing detected 34 contaminants across the water suppliers serving ZIP 11559. 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 11559?

1 public water supplier report EPA drinking-water monitoring for ZIP 11559. Each is listed above with its population served.

What contaminants are in ZIP 11559's water?

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