We found 28 public water systems that could serve the same population as Palmer Vineyard (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Suffolk County Water Authority | Babylon, Brookhaven, East Hampton, Huntington, Islip, Riverhead, Smithtown, Southampton, Southold | 1,100,000 | 3,457 | 9 |
| Riverhead Wd | Riverhead | 35,000 | 100 | 49 |
| Great Peconic Bay Marina | Riverhead | 150 | 0 | 0 |
| Wine Country Deli (fnafarmview Deli) | Riverhead | 100 | 0 | 0 |
| Wading River Motel | Riverhead | 100 | 0 | 0 |
| Flanders Mens Club | Riverhead | 100 | 0 | 0 |
| Hyde Inn | Riverhead | 100 | 0 | 0 |
| Riverfront Deli | Riverhead | 100 | 0 | 0 |
| Swan Lake Golf Course | Riverhead | 100 | 0 | 0 |
| Laurel Lake Vineyard | Riverhead | 100 | 0 | 0 |
| Calverton Links | Riverhead | 75 | 0 | 0 |
| Peconic River Mobile Home Park | Riverhead | 75 | 0 | 0 |
| Riverside Gymnastics Academy | Riverhead | 50 | 0 | 0 |
| Jamesport Vineyard | Riverhead | 50 | 0 | 0 |
| Huntington Learning Center | Riverhead | 50 | 0 | 0 |
| Van De Wetering Office | Riverhead | 45 | 0 | 0 |
| Victorianna | Riverhead | 40 | 0 | 0 |
| Paumanok Vineyard | Riverhead | 40 | 0 | 0 |
| National Response Corporation | Riverhead | 40 | 0 | 0 |
| Peconic View Mobile Home Park | Riverhead | 40 | 0 | 0 |
| Federal Express | Riverhead | 35 | 0 | 0 |
| Weeping Willow Motel | Riverhead | 30 | 0 | 0 |
| Country Commons At Aquebogue | Riverhead | 30 | 0 | 0 |
| Peconic River Sportsman Club | Riverhead | 30 | 0 | 0 |
| Calverton Enterprise Park | Riverhead | 30 | 0 | 0 |
| Coastal Pipeline Corp. | Riverhead | 30 | 0 | 0 |
| Van De Wetering Greenhouses | Riverhead | 0 | 0 | 0 |
| Meetinghouse Deli | Riverhead | 0 | 0 | 0 |