What was found in ZIP 11735
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.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate-Nitrite | 6580 µg/L 66% of the EPA limit 10000 µg/L Highest in the ZIP: BETHPAGE WD · 33,000 people · 2019 | 3/4 | SYR4 |
| Nitrate | 6300 µg/L 63% of the EPA limit 10000 µg/L Highest in the ZIP: BETHPAGE WD · 33,000 people · 2019 | 3/4 | SYR4 |
| Fluoride | 2362 µg/L 59% of the EPA limit 4000 µg/L Highest in the ZIP: SOUTH FARMINGDALE WD · 44,700 people · 2019 | 2/4 | SYR4 |
| Copper | 103.5 µg/L 8% of the EPA limit 1300 µg/L Highest in the ZIP: BETHPAGE WD · 33,000 people · 2019 | 3/4 | SYR4 |
| cis-1,2-Dichloroethylene | 53.1 µg/L 76% of the EPA limit 70 µg/L Highest in the ZIP: BETHPAGE WD · 33,000 people · 2019 | 1/4 | SYR4 |
| Barium | 33.05 µg/L 1.7% of the EPA limit 2000 µg/L Highest in the ZIP: FARMINGDALE (V) · 8,744 people · 2019 | 3/4 | SYR4 |
| Chromium | 32 µg/L 32% of the EPA limit 100 µg/L Highest in the ZIP: SOUTH FARMINGDALE WD · 44,700 people · 2019 | 1/4 | SYR4 |
| Trichloroethylene | 20 µg/L 400% of the EPA limit, at the 95th percentile of samples — 5 µg/L Highest in the ZIP: BETHPAGE WD · 33,000 people · 2019 | 2/4 | SYR4 |
| Lead | 10.345 µg/L 69% of the EPA limit 15 µg/L Highest in the ZIP: BETHPAGE WD · 33,000 people · 2019 | 3/4 | SYR4 |
| Combined Uranium | 5.9555 µg/L 20% of the EPA limit 30 µg/L Highest in the ZIP: BETHPAGE WD · 33,000 people · 2018 | 3/4 | SYR4 |
| Combined Radium (-226 And -228) | 5.824 pCi/L 116% of the EPA limit, at the 95th percentile of samples — 5 pCi/L Highest in the ZIP: BETHPAGE WD · 33,000 people · 2019 | 3/4 | SYR4 |
| Gross Alpha, Excl. Radon And U | 4.8025 pCi/L 32% of the EPA limit 15 pCi/L Highest in the ZIP: BETHPAGE WD · 33,000 people · 2018 | 2/4 | SYR4 |
| Tetrachloroethylene | 4.7 µg/L 94% of the EPA limit 5 µg/L Highest in the ZIP: BETHPAGE WD · 33,000 people · 2019 | 2/4 | SYR4 |
| trans-1,2-Dichloroethylene | 4.6865 µg/L 4.7% of the EPA limit 100 µg/L Highest in the ZIP: BETHPAGE WD · 33,000 people · 2019 | 1/4 | SYR4 |
| TTHM | 4.605 µg/L 5.8% of the EPA limit 80 µg/L Highest in the ZIP: SOUTH FARMINGDALE WD · 44,700 people · 2019 | 2/4 | SYR4 |
| 1,1-Dichloroethylene | 3.9325 µg/L 56% of the EPA limit 7 µg/L Highest in the ZIP: BETHPAGE WD · 33,000 people · 2019 | 1/4 | SYR4 |
| Gross Beta Particle Activity | 3.8185 pCi/L No EPA limit set Highest in the ZIP: BETHPAGE WD · 33,000 people · 2019 | 3/4 | SYR4 |
| 1,2-Dichloroethane | 2.705 µg/L 54% of the EPA limit 5 µg/L Highest in the ZIP: BETHPAGE WD · 33,000 people · 2019 | 1/4 | SYR4 |
| Bromoform | 2.326 µg/L No EPA limit set Highest in the ZIP: SOUTH FARMINGDALE WD · 44,700 people · 2019 | 1/4 | SYR4 |
| Carbon Tetrachloride | 2.29 µg/L 46% of the EPA limit 5 µg/L Highest in the ZIP: BETHPAGE WD · 33,000 people · 2019 | 1/4 | SYR4 |
| Dibromochloromethane | 2.24 µg/L No EPA limit set Highest in the ZIP: FARMINGDALE (V) · 8,744 people · 2019 | 3/4 | SYR4 |
| 1,1,1-Trichloroethane | 2 µg/L 1% of the EPA limit 200 µg/L Highest in the ZIP: BETHPAGE WD · 33,000 people · 2019 | 1/4 | SYR4 |
| Arsenic | 1.616 µg/L 16% of the EPA limit 10 µg/L Highest in the ZIP: SOUTH FARMINGDALE WD · 44,700 people · 2019 | 1/4 | SYR4 |
| Bromodichloromethane | 1.4825 µg/L No EPA limit set Highest in the ZIP: SOUTH FARMINGDALE WD · 44,700 people · 2019 | 2/4 | SYR4 |
| Dichloroacetic Acid | 1.24 µg/L No EPA limit set Highest in the ZIP: FARMINGDALE (V) · 8,744 people · 2019 | 1/4 | SYR4 |
| Thallium, Total | 0.9800 µg/L 49% of the EPA limit 2 µg/L Highest in the ZIP: BETHPAGE WD · 33,000 people · 2019 | 2/4 | SYR4 |
| Chloroform | 0.9760 µg/L No EPA limit set Highest in the ZIP: SOUTH FARMINGDALE WD · 44,700 people · 2019 | 3/4 | SYR4 |
| Dibromoacetic Acid | 0.9200 µg/L No EPA limit set Highest in the ZIP: FARMINGDALE (V) · 8,744 people · 2019 | 1/4 | SYR4 |
| 1,1,2-Trichloroethane | 0.8100 µg/L 16% of the EPA limit 5 µg/L Highest in the ZIP: BETHPAGE WD · 33,000 people · 2019 | 1/4 | SYR4 |
| 1,2-Dichloropropane | 0.6460 µg/L 13% of the EPA limit 5 µg/L Highest in the ZIP: BETHPAGE WD · 33,000 people · 2019 | 1/4 | SYR4 |
| Beryllium, Total | 0.3900 µg/L 9.8% of the EPA limit 4 µg/L Highest in the ZIP: SOUTH FARMINGDALE WD · 44,700 people · 2019 | 1/4 | SYR4 |
| Pfhxa | 0.0435 µg/L No EPA limit set Main supplier: SUFFOLK COUNTY WATER AUTHORITY · 1,100,000 people · 2025 | 2/4 | UCMR-5 |
| Pfpea | 0.0394 µg/L No EPA limit set Main supplier: SUFFOLK COUNTY WATER AUTHORITY · 1,100,000 people · 2025 | 2/4 | UCMR-5 |
| 6:2 Fts | 0.0236 µg/L No EPA limit set Main supplier: SUFFOLK COUNTY WATER AUTHORITY · 1,100,000 people · 2025 | 1/4 | UCMR-5 |
| PFOS | 0.0174 µg/L No EPA limit set Main supplier: SUFFOLK COUNTY WATER AUTHORITY · 1,100,000 people · 2025 | 1/4 | UCMR-5 |
| Pfba | 0.0126 µg/L No EPA limit set Main supplier: SUFFOLK COUNTY WATER AUTHORITY · 1,100,000 people · 2025 | 2/4 | UCMR-5 |
| PFHXS | 0.0108 µg/L No EPA limit set Main supplier: SUFFOLK COUNTY WATER AUTHORITY · 1,100,000 people · 2025 | 1/4 | UCMR-5 |
| Pfhpa | 0.0096 µg/L No EPA limit set Main supplier: SUFFOLK COUNTY WATER AUTHORITY · 1,100,000 people · 2025 | 1/4 | UCMR-5 |
| PFOA | 0.0065 µg/L No EPA limit set Main supplier: SUFFOLK COUNTY WATER AUTHORITY · 1,100,000 people · 2025 | 1/4 | UCMR-5 |
| PFNA | 0.0057 µg/L No EPA limit set Main supplier: SUFFOLK COUNTY WATER AUTHORITY · 1,100,000 people · 2025 | 1/4 | UCMR-5 |
| PFBS | 0.0052 µg/L No EPA limit set Main supplier: SUFFOLK COUNTY WATER AUTHORITY · 1,100,000 people · 2025 | 2/4 | UCMR-5 |
| Lead | 0.0013 mg/L 8.3% of the EPA limit 0.0150 mg/L Main supplier: SUFFOLK COUNTY WATER AUTHORITY · 1,100,000 people · 2027
Highest in the ZIP: 0.0021 mg/L — FARMINGDALE (V) · 8,744 people · 2025 | 4/4 | 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 11735
| Supplier | State | Population served |
|---|---|---|
| SUFFOLK COUNTY WATER AUTHORITY | NY | 1,100,000 |
| SOUTH FARMINGDALE WD | NY | 44,700 |
| BETHPAGE WD | 33,000 | |
| FARMINGDALE (V) | NY | 8,744 |
Frequently asked questions about ZIP 11735 tap water
Is the tap water in ZIP 11735 safe to drink?
EPA testing detected 42 contaminants across the water suppliers serving ZIP 11735. 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 11735?
4 public water suppliers report EPA drinking-water monitoring for ZIP 11735. Each is listed above with its population served.
What contaminants are in ZIP 11735's water?
EPA monitoring detected Nitrate-Nitrite, Nitrate, Fluoride, Copper, cis-1,2-Dichloroethylene, and others across this ZIP's suppliers. The full list with levels and sources is above.