We found 13 public water systems that could serve the same population as Overlook Beach (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 |
| Captree State Park | Babylon | 8,000 | 0 | 0 |
| East Farmingdale Wd | Babylon | 7,500 | 0 | 23 |
| Cedar Beach (golf Course/concession) | Babylon | 500 | 0 | 3 |
| Gilgo Beach | Babylon | 500 | 0 | 0 |
| West Gilgo Beach Association | Babylon | 300 | 0 | 5 |
| Cedar Beach Sportfishing Educ. Center | Babylon | 200 | 0 | 0 |
| Oak Beach Inn | Babylon | 200 | 0 | 0 |
| Cedar Beach Golf Course | Babylon | 100 | 0 | 0 |
| Dougherty Water Company | Babylon | 52 | 0 | 0 |
| Mccarren Water Supply | Babylon | 50 | 0 | 0 |
| Robert Moses State Park | Babylon | 40 | 0 | 0 |
| Mccrodden Water Company | Babylon | 33 | 0 | 0 |