RIVERHEAD WATER DISTRICT
New York — Community Water System — PWSID: NY5103705
System Information
| PWSID | NY5103705 |
| System Name | RIVERHEAD 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 | RIVERHEAD |
| ZIP Code | 11901 |
| Address | 1035 Pulaski Street |
| Organization | MANCINI, FRANK |
| Phone | 631-727-3705 |
Population & Service
| Population Served | 35,000 |
| Service Connections | 9,334 |
Drinking Water Violations (9)
This water system has 9 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jul 1, 2010 | Sep 30, 2010 | 1,1,1-Trichloroethane | MR | No | No | — | 0.2 mg/L | — | Resolved | Sep 30, 2010 | Volatile Organic Chemicals |
| Jul 1, 2010 | Sep 30, 2010 | 2,4,5-TP | MR | No | No | — | 0.05 mg/L | — | Resolved | Sep 30, 2010 | Synthetic Organic Chemicals |
| Jul 1, 2010 | Sep 30, 2010 | Heptachlor epoxide | MR | No | No | — | 0.0002 mg/L | — | Resolved | Sep 30, 2010 | Synthetic Organic Chemicals |
| Jul 1, 2010 | Sep 30, 2010 | Heptachlor epoxide | MR | No | No | — | 0.0002 mg/L | — | Resolved | Sep 30, 2010 | Synthetic Organic Chemicals |
| Jul 1, 2010 | Sep 30, 2010 | OXAMYL | MR | No | No | — | 0.2 mg/L | — | Resolved | Sep 30, 2010 | Synthetic Organic Chemicals |
| Jul 1, 2010 | Sep 30, 2010 | OXAMYL | MR | No | No | — | 0.2 mg/L | — | Resolved | Sep 30, 2010 | Synthetic Organic Chemicals |
| Jul 1, 2010 | Sep 30, 2010 | 2,4-D | MR | No | No | — | 0.07 mg/L | — | Resolved | Sep 30, 2010 | Synthetic Organic Chemicals |
| Jul 1, 2010 | Sep 30, 2010 | 2,4-D | MR | No | No | — | 0.07 mg/L | — | Resolved | Sep 30, 2010 | Synthetic Organic Chemicals |
| Jul 1, 2010 | Sep 30, 2010 | 2,4-D | MR | No | No | — | 0.07 mg/L | — | Resolved | Sep 30, 2010 | Synthetic Organic Chemicals |
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.