We found 11 public water systems that could serve the same population as (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Waterbury Water Department | Middlebury, Prospect, Waterbury, Watertown, Wolcott | 107,271 | 30 | 6 |
| Ctwc - Naugatuck Region-central System | Beacon Falls, Naugatuck, Prospect, Waterbury | 22,108 | 35 | 8 |
| Watertown Water & Sewer Authority | Middlebury, Waterbury, Watertown | 9,972 | 0 | 49 |
| Wolcott Water Department | Waterbury, Wolcott | 2,550 | 0 | 38 |
| Ctwc - Naugatuck Div, Town Of Middlebury | Middlebury, Waterbury | 1,332 | 0 | 0 |
| Silver Diner | Waterbury | 30 | 0 | 0 |
| Pontelandolfo Club, Main System | Waterbury | 25 | 0 | 0 |
| Waterbury | 25 | 0 | 0 | |
| Walter Andrews (spring) | Waterbury | 25 | 0 | 0 |
| Spring Grove Rec Area | Waterbury | 25 | 0 | 0 |
| Pontelandolfo Club, Pavilion System | Waterbury | 25 | 0 | 0 |