We found 11 public water systems that could serve the same population as Olana State Historic Site (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Greenport Wd No1 | Greenport | 4,050 | 0 | 48 |
| Columbia - Greene Community College | Greenport | 950 | 0 | 6 |
| Stone Bridge Estates Llc | Greenport | 120 | 0 | 0 |
| Stewarts Shop #239 Greenport | Greenport | 100 | 0 | 0 |
| The Sunset Motel | Greenport | 40 | 0 | 0 |
| Dine Rite Diner | Greenport | 28 | 0 | 0 |
| Cherry Ridge Farm | Greenport | 25 | 0 | 0 |
| Pizza Garden | Greenport | 25 | 0 | 0 |
| Bryant Farms | Greenport | 25 | 0 | 0 |
| Hudson Valley Olde Time Power Assoc. | Greenport | 25 | 0 | 0 |
| Federation Of Polish Sportsmen | Greenport | 24 | 0 | 0 |