Puerto Rico Water Quality
402 water systems serving 3,284,004 people. 24,250 total violations on record.
Safety Grade Distribution
A
41
10%
B
10
2%
C
312
78%
D
23
6%
F
16
4%
402
Water Systems
3,284,004
Population Served
24,250
Total Violations
2,826
Health-Based
Most Contaminated Systems
LAS BOCAS
10,998 served244 violations156 recent
D
PONCE URBANO
111,926 served504 violations145 recent
F
METROPOLITANO
1,077,332 served616 violations133 recent
F
AIBONITO LA PLATA
16,202 served212 violations122 recent
D
MAYAGUEZ
151,555 served334 violations104 recent
F
MALPASO
908 served118 violations92 recent
C
CUYON
515 served102 violations90 recent
C
EL PERICO II
81 served106 violations90 recent
C
LAJAS
47,531 served168 violations84 recent
C
SECTOR LAGUNA
27 served110 violations84 recent
C
Cleanest Water Systems
ISABELA
49,419 served78 violations
A
DORADO URBANO
39,733 served24 violations
A
YAUCO
35,618 served116 violations
A
CIDRA URBANO
33,957 served56 violations
A
MAGUAYO
31,880 served15 violations
A
SAN SEBASTIAN
24,449 served92 violations
A
SANTANA
19,574 served26 violations
A
LARES ESPINO
16,676 served111 violations
A
BARCELONETA URBANO
16,290 served18 violations
A
SABANA HOYOS
15,876 served50 violations
A
Largest Water Systems in Puerto Rico
| Water System | Grade | Population | Violations |
|---|---|---|---|
| METROPOLITANO | F | 1,077,332 | 616 |
| MAYAGUEZ | F | 151,555 | 334 |
| AGUADILLA | D | 123,885 | 274 |
| PONCE URBANO | F | 111,926 | 504 |
| RIO BLANCO,VIEQUES,CULEDRA | F | 80,759 | 161 |
| EL YUNQUE | F | 68,024 | 105 |
| ARECIBO URBANO | C | 61,119 | 282 |
| FAJARDO CEIBA | C | 58,011 | 57 |
| ISABELA | A | 49,419 | 78 |
| LAJAS | C | 47,531 | 168 |
| CAGUAS NORTE | B | 46,530 | 61 |
| SANTA ISABEL URBANO | C | 39,884 | 63 |
| DORADO URBANO | A | 39,733 | 24 |
| FARALLON | F | 38,977 | 120 |
| GUAYAMA URBANO | D | 36,606 | 220 |
| JUNCOS - CEIBA SUR | F | 36,277 | 146 |
| LAS PIEDRAS HUMACAO | C | 36,032 | 76 |
| YAUCO | A | 35,618 | 116 |
| CIDRA URBANO | A | 33,957 | 56 |
| REGIONAL VILLALBA TOA VACA | C | 33,711 | 146 |
Contaminants in Puerto Rico
Cities in Puerto Rico
SAN JUAN(1)MAYAGUEZ(3)SANTURCE(15)PONCE(21)AGUADILLA(3)ARECIBO(12)CAGUAS(22)NAGUABO(4)DORADO(2)RIO GRANDE(3)CAYEY(8)FAJARDO(2)UTUADO(16)LAJAS(1)VEGA BAJA(6)YAUCO(8)GUAYAMA(4)SANTA ISABEL(1)HATILLO(2)SAN LORENZO(19)PATILLAS(11)JUNCOS(1)HUMACAO(1)CIDRA(4)QUEBRADILLAS(1)COROZAL(11)SAN SEBASTIAN(4)SALINAS(3)MANATI(4)GURABO(1)OROCOVIS(17)YABUCOA(10)MOROVIS(3)PENUELAS(9)JUANA DIAZ(7)CABO ROJO(1)AIBONITO(5)AGUAS BUENAS(10)COMERIO(6)GUANICA(4)GUAYANILLA(7)BARCELONETA(1)FLORIDA(1)JAYUYA(12)CIALES(5)LARES(5)ADJUNTAS(17)ISABELA(1)NARANJITO(7)BARRANQUITAS(12)HORMIGUERO(1)LAS MARIAS(3)LUQUILLO(2)MAUNABO(5)SAN GERMAN(7)VILLALBA(13)GUAYNABO(2)COAMO(5)BAYAMON(1)MARICAO(3)MOCA(2)SABANA GRANDE(1)AGUADA(7)CANOVANAS(3)LAS PIEDRAS(5)ANASCO(3)CAROLINA(2)BO. JACANAS, YABUCOA(1)CEIBA(1)PUNUELAS(1)