We found 20 public water systems that could serve the same population as Guayanes I (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Limones | Limones, Yabucoa | 10,308 | 0 | 0 |
| YABUCOA URBANO | Yabucoa | 9,868 | 14 | 243 |
| La Grua | Yabucoa | 5,759 | 39 | 68 |
| Acued. Bo. Guayabota | Yabucoa | 2,268 | 0 | 267 |
| Acued. Rural De Tejas | Yabucoa | 1,892 | 0 | 53 |
| Guayabota | Guayabota, Yabucoa | 1,852 | 0 | 336 |
| Calabazas Arriba | Yabucoa | 1,430 | 0 | 107 |
| Jacanas Sur | Yabucoa | 1,080 | 0 | 52 |
| Guayanes Ii | Yabucoa | 796 | 0 | 0 |
| Jagueyes | Yabucoa | 688 | 0 | 0 |
| Acue.jacanas Piedras Blancas I | Yabucoa | 643 | 0 | 147 |
| Sodoma | Yabucoa | 571 | 0 | 145 |
| J Canas | Yabucoa | 540 | 0 | 0 |
| Acued. Jacanas Piedras Blanca 2 | Yabucoa | 512 | 0 | 160 |
| Ciudad Educativa Dr. Roque | Yabucoa | 440 | 0 | 0 |
| Acued. Rural Sect. El Veinte | Yabucoa | 387 | 0 | 157 |
| Central Roig | Yabucoa | 250 | 0 | 0 |
| Asociacion Vecinos | Yabucoa | 125 | 0 | 102 |
| R.j. Reynolds Tabacco (ci),llc | Yabucoa | 100 | 0 | 0 |
| Shell Chemical Yabucoa | Yabucoa | 90 | 0 | 0 |