We found 17 public water systems that could serve the same population as Route 191 Diner (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Washington Academy #2 | East Machias | 500 | 0 | 8 |
| Washington Academy #1 | East Machias | 487 | 0 | 13 |
| Panda Chinese Restaurant | East Machias | 360 | 0 | 0 |
| Central Kitchen | East Machias | 213 | 0 | 0 |
| Aos 96 Elm Street School | East Machias | 208 | 0 | 14 |
| Jennies Restaurant | East Machias | 198 | 0 | 0 |
| Washington Academy #3 | East Machias | 120 | 0 | 0 |
| Msad 77 Mary C Burns School | East Machias | 65 | 0 | 0 |
| Rivers Edge Campground | East Machias | 65 | 0 | 0 |
| Maineland Motel | East Machias | 60 | 0 | 0 |
| Breeze Inn | East Machias | 48 | 0 | 0 |
| Hadleys Lake Apartments | East Machias | 45 | 0 | 0 |
| East Machias Camp Meeting-lower Camp | East Machias | 45 | 0 | 0 |
| East Machias Camp Meeting- Upper Camp | East Machias | 26 | 0 | 0 |
| The Sandwich Shop | East Machias | 25 | 0 | 0 |
| Archibalds One-stop | East Machias | 25 | 0 | 0 |
| Montsweag Flea Market | East Machias | 25 | 0 | 0 |