Puerto Rico: Water Systems with Most Health Violations
351 water systems in Puerto Rico have at least one health-based violation on record. The system with the most health-based violations is Metropolitano in San Juan with 278 health-based violations. Health-based violations mean a system exceeded an EPA maximum contaminant level or failed required treatment standards.
| Water System | City | Population | Health Violations | Total Violations |
|---|---|---|---|---|
| Metropolitano | San Juan | 1,077,332 | 278 | 616 |
| Ponce Urbano | Ponce | 111,926 | 107 | 504 |
| Aguadilla | Aguadilla | 123,885 | 101 | 274 |
| Luquillo Urbano | Luquillo | 8,880 | 94 | 210 |
| Cotto Laurel | Ponce | 13,860 | 92 | 181 |
| Comerio Urbano | Comerio | 14,872 | 84 | 140 |
| Guayama Urbano | Guayama | 36,606 | 65 | 220 |
| Cubuy Maizales | Canovanas | 617 | 56 | 118 |
| Regional Villalba Toa Vaca | Santurce | 33,711 | 49 | 146 |
| Cabo Rojo | Cabo Rojo | 20,749 | 48 | 118 |
| Las Bocas | Santurce | 10,998 | 47 | 244 |
| Mayaguez | Mayaguez | 151,555 | 46 | 334 |
| Orocovis Urbano | Orocovis | 16,869 | 45 | 144 |
| Jayuya Urbano | Jayuya | 7,644 | 45 | 105 |
| El Yunque | Rio Grande | 68,024 | 44 | 105 |
| Lago Guajataca | Isabela | 11,187 | 42 | 163 |
| Sabana Grande | Utuado | 25,229 | 39 | 162 |
| San Sebastian | San Sebastian | 24,449 | 36 | 92 |
| Juncos - Ceiba Sur | Juncos | 36,277 | 33 | 146 |
| Anon Carmelita | Ponce | 900 | 30 | 122 |
| Guayabota | Yabucoa | 1,028 | 30 | 58 |
| Aguas Buenas Urbano | Aguas Buenas | 13,016 | 29 | 129 |
| Maunabo Urbano | Maunabo | 9,310 | 28 | 318 |
| Rio Blanco, Vieques, Culedra | Naguabo | 80,759 | 28 | 161 |
| Gurabo Urbano | Gurabo | 24,967 | 28 | 105 |
| Lajas | Lajas | 47,531 | 26 | 168 |
| Morovis | Rio Grande | 983 | 26 | 58 |
| Aibonito La Plata | Aibonito | 16,202 | 25 | 212 |
| Guzman Arriba | Santurce | 2,694 | 25 | 70 |
| Patillas Urbano | Patillas | 31,955 | 20 | 290 |
| Farallon | Cayey | 38,977 | 20 | 120 |
| Almirante Sur | Vega Baja | 2,873 | 20 | 71 |
| Barranquitas Urbano | Barranquitas | 3,511 | 19 | 84 |
| Corozal Urbano | Corozal | 8,619 | 19 | 66 |
| Vega Baja Urbano | Vega Baja | 26,660 | 18 | 229 |
| Penuelas | Penuelas | 17,320 | 18 | 201 |
| Ciales Urbano | Ciales | 4,563 | 18 | 86 |
| Caguas Sur | Caguas | 33,231 | 18 | 74 |
| Vecinos Camino Luis Lebron Inc | Cayey | 192 | 18 | 67 |
| Manati East | Manati | 13,305 | 16 | 199 |
| Aceitunas | Santurce | 8,961 | 16 | 117 |
| Zamas | Jayuya | 1,200 | 16 | 74 |
| Sabana Hoyos | Arecibo | 15,876 | 16 | 50 |
| Sector Los Diaz | San Lorenzo | 197 | 15 | 32 |
| Isabela | Santurce | 49,419 | 14 | 78 |
| San Lorenzo Urbano | San Lorenzo | 26,094 | 14 | 73 |
| Cubuy | Canovanas | 1,733 | 14 | 62 |
| Duey | Yauco | 2,368 | 14 | 54 |
| Morovis Urbano | Morovis | 20,628 | 13 | 142 |
| Pellejas | Adjuntas | 295 | 13 | 98 |
| Hatillo-Camuy | Hatillo | 28,735 | 13 | 88 |
| Asoc. De Agua Sector Pelegrin Santos | Cidra | 256 | 13 | 46 |
| Cidra Urbano | Cidra | 33,957 | 12 | 56 |
| Acued. Canabon Sect. El Parque | Barranquitas | 97 | 12 | 45 |
| Coamo Arriba | Coamo | 340 | 11 | 45 |
| Almirante Jaguas Corp | Cidra | 315 | 11 | 41 |
| Acued. Rural Jacanas Piedras Blancas | Yabucoa | 449 | 11 | 21 |
| Acued. Com. Comunidad Canabon Abajo | Barranquitas | 254 | 11 | 21 |
| Acued. Bo. Guayabota | Yabucoa | 1,608 | 11 | 17 |
| Yauco | Yauco | 35,618 | 10 | 116 |
| Quebradillas Urbano | Quebradillas | 27,458 | 10 | 91 |
| Acued. Rural Sect. El Veinte | Yabucoa | 387 | 10 | 87 |
| Acueducto Comunal San Jose | Penuelas | 93 | 10 | 86 |
| Las Marias | Las Marias | 7,166 | 10 | 83 |
| Bo Nuevo | Bayamon | 5,185 | 10 | 66 |
| Caguas Norte | Caguas | 46,530 | 10 | 61 |
| Sabana Grande | Utuado | 1,754 | 10 | 46 |
| Sanamuerto | Morovis | 1,498 | 10 | 43 |
| Matrulla | Orocovis | 2,286 | 10 | 33 |
| Acued. Madriguera | Aguas Buenas | 435 | 10 | 19 |
| Cayey Urbano | Cayey | 18,185 | 9 | 65 |
| Neolpharma | Caguas | 176 | 9 | 24 |
| Comunidad Jacanas Sur Inc. | Bo. Jacanas, Yabucoa | 668 | 9 | 22 |
| Apeadero | Villalba | 320 | 8 | 76 |
| Lares Espino | Santurce | 16,676 | 7 | 111 |
| Lijas | Las Piedras | 534 | 7 | 89 |
| Jaguey Chiquito | Aguada | 642 | 7 | 58 |
| Asociacion Acueducto Mulas Jagual, Inc. | Patillas | 652 | 7 | 49 |
| El Cerro Corp. | San Lorenzo | 192 | 7 | 26 |
| Acued. Rural Sect. Lozada Y Pozo Dulce | Caguas | 506 | 7 | 11 |
| Aibonito Urbano | Santurce | 5,524 | 6 | 131 |
| Santa Rosa | Jayuya | 400 | 6 | 94 |
| Yabucoa Urbano | Yabucoa | 14,610 | 6 | 75 |
| Cerrote | Yauco | 58 | 6 | 55 |
| Alturas De Montones 4, Inc. | Las Piedras | 223 | 6 | 46 |
| Almirante Norte | Vega Baja | 4,285 | 6 | 36 |
| Maricao | Maricao | 3,474 | 6 | 26 |
| Comunidad Las Corujas | Aguas Buenas | 657 | 6 | 23 |
| Acued. Com. Barrancas Centro | Barranquitas | 534 | 6 | 19 |
| Vista Alegre | Villalba | 340 | 6 | 16 |
| La Cuchilla | San Lorenzo | 400 | 6 | 12 |
| Acued. Rural Guacio | San Sebastian | 340 | 5 | 85 |
| Mameyes Abajo | Utuado | 876 | 5 | 79 |
| Janssen Ortho, LLC | Gurabo | 1,586 | 5 | 55 |
| Quebrada Larga | Aguada | 435 | 5 | 51 |
| Bo.Quebrada Arriba | Patillas | 840 | 5 | 48 |
| Sonador II | San Sebastian | 800 | 5 | 25 |
| Acued.Comunal Sect. Manuel Diaz | San Lorenzo | 331 | 5 | 21 |
| Periche | San German | 1,100 | 5 | 14 |
| Ciudad Educativa Dr. Roque | Yabucoa | 500 | 4 | 335 |