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 | Mar 27, 2026 |
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 (87)
This water system has 87 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 | MR | No | No | — | — | — | Archived | Mar 31, 2025 | — | |
| Jan 1, 2025 | Mar 31, 2025 | MR | No | No | — | — | — | Archived | Mar 31, 2025 | — | |
| Jan 1, 2025 | Mar 31, 2025 | MR | No | No | — | — | — | Archived | Mar 31, 2025 | — | |
| Jan 1, 2024 | Dec 31, 2024 | MR | No | No | — | 0.006 mg/L | — | Archived | Dec 31, 2024 | — | |
| Jan 1, 2024 | Dec 31, 2024 | MR | No | No | — | — | — | Archived | Dec 31, 2024 | — | |
| Jan 1, 2024 | Dec 31, 2024 | MR | No | No | — | — | — | Archived | Dec 31, 2024 | — | |
| Jan 1, 2024 | Dec 31, 2024 | MR | No | No | — | 0.005 mg/L | — | Archived | Dec 31, 2024 | — | |
| Jan 1, 2024 | Dec 31, 2024 | MR | No | No | — | 0.005 mg/L | — | Archived | Dec 31, 2024 | — | |
| Jan 1, 2024 | Dec 31, 2024 | MR | No | No | — | 0.2 mg/L | — | Archived | Dec 31, 2024 | — | |
| Jan 1, 2024 | Dec 31, 2024 | MR | No | No | — | 0.2 mg/L | — | Archived | Dec 31, 2024 | — | |
| Jan 1, 2024 | Dec 31, 2024 | MR | No | No | — | 4.0 mg/L | — | Archived | Dec 31, 2024 | — | |
| Jan 1, 2024 | Dec 31, 2024 | MR | No | No | — | 4.0 mg/L | — | Archived | Dec 31, 2024 | — | |
| Jan 1, 2024 | Dec 31, 2024 | MR | No | No | — | — | — | Archived | Dec 31, 2024 | — | |
| Jan 1, 2024 | Dec 31, 2024 | MR | No | No | — | — | — | Archived | Dec 31, 2024 | — | |
| Jan 1, 2024 | Dec 31, 2024 | MR | No | No | — | 0.006 mg/L | — | Archived | Dec 31, 2024 | — | |
| Jan 1, 2024 | Dec 31, 2024 | MR | No | No | — | 2 mg/L | — | Archived | Dec 31, 2024 | — | |
| Jan 1, 2024 | Dec 31, 2024 | MR | No | No | — | 0.002 mg/L | — | Archived | Dec 31, 2024 | — | |
| Jan 1, 2024 | Dec 31, 2024 | MR | No | No | — | 0.002 mg/L | — | Archived | Dec 31, 2024 | — | |
| Jan 1, 2024 | Dec 31, 2024 | MR | No | No | — | 0.002 mg/L | — | Archived | Dec 31, 2024 | — | |
| Jan 1, 2024 | Dec 31, 2024 | MR | No | No | — | 0.1 mg/L | — | Archived | Dec 31, 2024 | — | |
| Jan 1, 2024 | Dec 31, 2024 | MR | No | No | — | 0.1 mg/L | — | Archived | Dec 31, 2024 | — | |
| Jan 1, 2024 | Dec 31, 2024 | MR | No | No | — | 0.010 mg/L | — | Archived | Dec 31, 2024 | — | |
| Jan 1, 2024 | Dec 31, 2024 | MR | No | No | — | 0.010 mg/L | — | Archived | Dec 31, 2024 | — | |
| Jan 1, 2024 | Dec 31, 2024 | MR | No | No | — | 0.002 mg/L | — | Archived | Dec 31, 2024 | — | |
| Jan 1, 2024 | Dec 31, 2024 | MR | No | No | — | 2 mg/L | — | Archived | Dec 31, 2024 | — | |
| Jan 1, 2024 | Dec 31, 2024 | MR | No | No | — | 0.05 mg/L | — | Archived | Dec 31, 2024 | — | |
| Jan 1, 2024 | Dec 31, 2024 | MR | No | No | — | 0.05 mg/L | — | Archived | Dec 31, 2024 | — | |
| Jan 1, 2024 | Dec 31, 2024 | MR | No | No | — | 0.004 mg/L | — | Archived | Dec 31, 2024 | — | |
| Jan 1, 2024 | Dec 31, 2024 | MR | No | No | — | 0.004 mg/L | — | Archived | Dec 31, 2024 | — | |
| Apr 1, 2023 | Jun 30, 2023 | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Jun 30, 2023 | — | |
| Apr 1, 2023 | Jun 30, 2023 | MR | No | No | — | 10 mg/L | — | Resolved | Jun 30, 2023 | — | |
| Apr 1, 2023 | Jun 30, 2023 | MR | No | No | — | 10 mg/L | — | Resolved | Jun 30, 2023 | — | |
| Apr 1, 2023 | Jun 30, 2023 | MR | No | No | — | 10 mg/L | — | Resolved | Jun 30, 2023 | — | |
| Apr 1, 2023 | Jun 30, 2023 | MR | No | No | — | 1 mg/L | — | Resolved | Jun 30, 2023 | — | |
| Apr 1, 2023 | Jun 30, 2023 | MR | No | No | — | 1 mg/L | — | Resolved | Jun 30, 2023 | — | |
| Apr 1, 2023 | Jun 30, 2023 | MR | No | No | — | 1 mg/L | — | Resolved | Jun 30, 2023 | — | |
| Apr 1, 2023 | Apr 30, 2023 | MR | No | No | — | 1.0 mg/L | — | Resolved | Apr 30, 2023 | — | |
| Apr 1, 2023 | Apr 30, 2023 | MR | No | No | — | 1.0 mg/L | — | Resolved | Apr 30, 2023 | — | |
| Apr 1, 2023 | Apr 30, 2023 | MR | No | No | — | 1.0 mg/L | — | Resolved | Apr 30, 2023 | — | |
| Apr 1, 2023 | Jun 30, 2023 | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Jun 30, 2023 | — | |
| Apr 1, 2023 | Jun 30, 2023 | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Jun 30, 2023 | — | |
| May 31, 2012 | — | Other | No | No | — | — | — | Resolved | Jul 26, 2012 | — | |
| May 31, 2012 | — | Other | No | No | — | — | — | Resolved | Jul 26, 2012 | — | |
| Aug 1, 2011 | Aug 31, 2011 | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 2011 | — | |
| Aug 1, 2011 | Aug 31, 2011 | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 2011 | — | |
| Aug 1, 2011 | Aug 31, 2011 | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 2011 | — | |
| Jun 1, 2010 | Jun 30, 2010 | MR | No | Yes | — | — | — | Resolved | Jun 30, 2010 | — | |
| Jun 1, 2010 | Jun 30, 2010 | MR | No | Yes | — | — | — | Resolved | Jun 30, 2010 | — | |
| Jun 1, 2010 | Jun 30, 2010 | MR | No | Yes | — | — | — | Resolved | Jun 30, 2010 | — | |
| Jun 1, 2010 | Jun 30, 2010 | MR | No | Yes | — | — | — | Resolved | Jun 30, 2010 | — |
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.