We found 12 public water systems that could serve the same population as Guaraguao (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Juana Diaz Urbano | Juana Diaz | 28,733 | 0 | 0 |
| Experimental | Juana Diaz | 7,732 | 0 | 34 |
| Aruz | Juana Diaz | 7,225 | 0 | 173 |
| Jacaguas | Juana Diaz | 5,156 | 0 | 234 |
| Amelia | Juana Diaz | 4,912 | 0 | 169 |
| Agustinillo | Juana Diaz | 1,501 | 0 | 46 |
| Rio Cana | Juana Diaz | 1,135 | 0 | 0 |
| Fort Allen | Juana Diaz | 1,000 | 0 | 31 |
| Portillo - Miramar | Juana Diaz | 383 | 0 | 156 |
| Testimonio Mundial De La Gracia | Juana Diaz | 220 | 0 | 4 |
| Colonia Santi | Juana Diaz | 76 | 0 | 0 |
| Hotel Marbella | Juana Diaz | 61 | 0 | 0 |