GREENLAWN WATER DISTRICT
New York — Community Water System — PWSID: NY5103271
System Information
| PWSID | NY5103271 |
| System Name | GREENLAWN WATER DISTRICT |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 02 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Jan 29, 1981 |
| Last Reported | Dec 23, 2025 |
Location & Contact
| State | New York |
| City | GREENLAWN |
| ZIP Code | 11740 |
| Address | 45 Railroad Street |
| Organization | DE MAYO, FRANK |
| Phone | 631-971-0072 |
Population & Service
| Population Served | 42,000 |
| Service Connections | 11,500 |
Drinking Water Violations (24)
This water system has 24 violations recorded in the EPA SDWIS database.
| Begin Date | End Date | Contaminant | Category | Health-Based | Major | Measured | Federal MCL | State MCL | Status | Return to Compliance | Rule |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan 1, 2025 | Mar 31, 2025 | Nitrate-Nitrite | MR | No | No | — | — | — | Archived | Mar 31, 2025 | Nitrate Rule |
| Jan 1, 2025 | Mar 31, 2025 | Nitrate-Nitrite | MR | No | No | — | — | — | Archived | Mar 31, 2025 | Nitrate Rule |
| Jan 1, 2024 | Dec 31, 2024 | Antimony, Total | MR | No | No | — | 0.006 mg/L | — | Archived | Dec 31, 2024 | Inorganic Chemicals |
| Jan 1, 2024 | Dec 31, 2024 | Mercury | MR | No | No | — | 0.002 mg/L | — | Archived | Dec 31, 2024 | Inorganic Chemicals |
| Jan 1, 2024 | Dec 31, 2024 | Mercury | MR | No | No | — | 0.002 mg/L | — | Archived | Dec 31, 2024 | Inorganic Chemicals |
| Jan 1, 2024 | Dec 31, 2024 | Beryllium, Total | MR | No | No | — | 0.004 mg/L | — | Archived | Dec 31, 2024 | Inorganic Chemicals |
| Jan 1, 2024 | Dec 31, 2024 | Beryllium, Total | MR | No | No | — | 0.004 mg/L | — | Archived | Dec 31, 2024 | Inorganic Chemicals |
| Jan 1, 2024 | Dec 31, 2024 | Selenium | MR | No | No | — | 0.05 mg/L | — | Archived | Dec 31, 2024 | Inorganic Chemicals |
| Jan 1, 2024 | Dec 31, 2024 | Selenium | MR | No | No | — | 0.05 mg/L | — | Archived | Dec 31, 2024 | Inorganic Chemicals |
| Jan 1, 2024 | Dec 31, 2024 | Chromium | MR | No | No | — | 0.1 mg/L | — | Archived | Dec 31, 2024 | Inorganic Chemicals |
| Jan 1, 2024 | Dec 31, 2024 | Chromium | MR | No | No | — | 0.1 mg/L | — | Archived | Dec 31, 2024 | Inorganic Chemicals |
| Jan 1, 2024 | Dec 31, 2024 | Thallium, Total | MR | No | No | — | 0.002 mg/L | — | Archived | Dec 31, 2024 | Inorganic Chemicals |
| Jan 1, 2024 | Dec 31, 2024 | Antimony, Total | MR | No | No | — | 0.006 mg/L | — | Archived | Dec 31, 2024 | Inorganic Chemicals |
| Jan 1, 2024 | Dec 31, 2024 | Nickel | MR | No | No | — | — | — | Archived | Dec 31, 2024 | Inorganic Chemicals |
| Jan 1, 2024 | Dec 31, 2024 | Nickel | MR | No | No | — | — | — | Archived | Dec 31, 2024 | Inorganic Chemicals |
| Jan 1, 2024 | Dec 31, 2024 | Fluoride | MR | No | No | — | 4.0 mg/L | — | Archived | Dec 31, 2024 | Inorganic Chemicals |
| Jan 1, 2024 | Dec 31, 2024 | Fluoride | MR | No | No | — | 4.0 mg/L | — | Archived | Dec 31, 2024 | Inorganic Chemicals |
| Jan 1, 2024 | Dec 31, 2024 | CYANIDE | MR | No | No | — | 0.2 mg/L | — | Archived | Dec 31, 2024 | Inorganic Chemicals |
| Jan 1, 2024 | Dec 31, 2024 | CYANIDE | MR | No | No | — | 0.2 mg/L | — | Archived | Dec 31, 2024 | Inorganic Chemicals |
| Jan 1, 2024 | Dec 31, 2024 | Nitrate-Nitrite | MR | No | No | — | — | — | Archived | Dec 31, 2024 | Nitrate Rule |
| Apr 1, 2023 | Jun 30, 2023 | Bromate | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Jun 30, 2023 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2023 | Apr 30, 2023 | Chlorite | MR | No | No | — | 1.0 mg/L | — | Resolved | Apr 30, 2023 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2023 | Apr 30, 2023 | Chlorite | MR | No | No | — | 1.0 mg/L | — | Resolved | Apr 30, 2023 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Sep 1, 2000 | Sep 30, 2000 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 30, 2000 | Total Coliform Rule |
About This Water System
Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.