Puerto Rico tap water quality
404 active community water systems.
Largest water systems
Most issues (systems serving 10,000+)
F
Ponce Urbano
Serves 113,972 people · Surface water · Full report →
15 health-based violations in the last 5 years; 23 monitoring/reporting violations; PFOA/PFOS average above the 4 ppt federal limit: PFOS; Other PFAS above 2024 limits (rule proposed for repeal): PFHxS, Hazard Index; Latest lead 90th percentile on file is from 2014 (older than 5 years, not graded).
F
PRASA Metropolitano (San Juan)
Serves 1,084,637 people · Surface water · Full report →
41 health-based violations in the last 5 years; 14 monitoring/reporting violations; PFOA/PFOS average above the 4 ppt federal limit: PFOS; Latest lead 90th percentile on file is from 2016 (older than 5 years, not graded).
D
Comerio Urbano
Serves 14,912 people · Surface water · Full report →
9 health-based violations in the last 5 years; 3 monitoring/reporting violations; PFAS tested (UCMR 5), none above federal limits; Latest lead 90th percentile on file is from 2015 (older than 5 years, not graded).
D
El Yunque
Serves 68,114 people · Surface water · Full report →
10 health-based violations in the last 5 years; 1 monitoring/reporting violation; PFAS tested (UCMR 5), none above federal limits; Latest lead 90th percentile on file is from 2016 (older than 5 years, not graded).
D
Farallon
Serves 39,388 people · Surface water · Full report →
6 health-based violations in the last 5 years; No UCMR 5 PFAS results on file; Latest lead 90th percentile on file is from 2015 (older than 5 years, not graded).
D
Cotto Laurel
Serves 12,979 people · Surface water · Full report →
4 health-based violations in the last 5 years; PFAS tested (UCMR 5), none above federal limits; Latest lead 90th percentile on file is from 2015 (older than 5 years, not graded).
C
Aguadilla
Serves 124,782 people · Surface water · Full report →
1 health-based violation in the last 5 years; 16 monitoring/reporting violations; PFOA/PFOS average above the 4 ppt federal limit: PFOS; Latest lead 90th percentile on file is from 2015 (older than 5 years, not graded).
C
Las Bocas
Serves 11,022 people · Surface water · Full report →
1 health-based violation in the last 5 years; 31 monitoring/reporting violations; PFOA/PFOS average above the 4 ppt federal limit: PFOS; Latest lead 90th percentile on file is from 2015 (older than 5 years, not graded).
C
Juncos - Ceiba Sur
Serves 36,835 people · Surface water · Full report →
3 health-based violations in the last 5 years; PFAS tested (UCMR 5), none above federal limits; Latest lead 90th percentile on file is from 2016 (older than 5 years, not graded).
C
Hatillo-Camuy
Serves 28,935 people · Surface water · Full report →
3 health-based violations in the last 5 years; PFAS tested (UCMR 5), none above federal limits; Latest lead 90th percentile on file is from 2015 (older than 5 years, not graded).
C
Cabo Rojo
Serves 20,356 people · Surface water · Full report →
3 health-based violations in the last 5 years; PFAS tested (UCMR 5), none above federal limits; Latest lead 90th percentile on file is from 2014 (older than 5 years, not graded).
C
Penuelas
Serves 17,326 people · Surface water · Full report →
3 health-based violations in the last 5 years; PFAS tested (UCMR 5), none above federal limits; Latest lead 90th percentile on file is from 2014 (older than 5 years, not graded).
C
Santa Isabel Urbano
Serves 39,925 people · Groundwater · Full report →
No health-based violations in the last 5 years; 16 monitoring/reporting violations; PFOA/PFOS average above the 4 ppt federal limit: PFOS; Latest lead 90th percentile on file is from 2015 (older than 5 years, not graded).
C
Aibonito LA Plata
Serves 16,354 people · Surface water · Full report →
No health-based violations in the last 5 years; 59 monitoring/reporting violations; PFOA/PFOS average above the 4 ppt federal limit: PFOS; Latest lead 90th percentile on file is from 2014 (older than 5 years, not graded).
C
Aguas Buenas Urbano
Serves 13,233 people · Surface water · Full report →
2 health-based violations in the last 5 years; 1 monitoring/reporting violation; PFAS tested (UCMR 5), none above federal limits; Latest lead 90th percentile on file is from 2015 (older than 5 years, not graded).
C
Mayaguez
Serves 152,342 people · Surface water · Full report →
1 health-based violation in the last 5 years; 30 monitoring/reporting violations; PFAS tested (UCMR 5), none above federal limits; Latest lead 90th percentile on file is from 2015 (older than 5 years, not graded).
B
Caguas Sur
Serves 34,261 people · Surface water · Full report →
1 health-based violation in the last 5 years; 4 monitoring/reporting violations; PFAS tested (UCMR 5), none above federal limits; Latest lead 90th percentile on file is from 2014 (older than 5 years, not graded).
B
Lago Guajataca
Serves 10,018 people · Surface water · Full report →
1 health-based violation in the last 5 years; 4 monitoring/reporting violations; PFAS tested (UCMR 5), none above federal limits; Latest lead 90th percentile on file is from 2016 (older than 5 years, not graded).
B
Cidra Urbano
Serves 34,424 people · Surface water · Full report →
No health-based violations in the last 5 years; PFOA/PFOS average above the 4 ppt federal limit: PFOS; Latest lead 90th percentile on file is from 2015 (older than 5 years, not graded).
B
Patillas Urbano
Serves 32,222 people · Surface water · Full report →
No health-based violations in the last 5 years; PFOA/PFOS average above the 4 ppt federal limit: PFOS; Latest lead 90th percentile on file is from 2014 (older than 5 years, not graded).
Cities
AdjuntasAguadaAguadillaAguas BuenasAibonitoAibonito CAlmiranteAnascoAquas BuenasAreciboArroyoBarcelonetaBarrancasBarranquitasBayamonBo CimarronaBo CocosBo JacaboaBoqueronCabo RojoCaguasCamuyCanovanasCarolinaCayeyCeibaCialesCidraCoamoComerioCoquiCorozalCubuyCulebrasCuyon Pasto VieDoradoEspinoFajardoFajardo CeibaFloridaGarrochalesGuanicaGuayabotaGuayamaGuayanillaGuaynaboGuraboHatilloHatillo CamuyHormigueroHormiguerosHumacaoIsabelaJagua PastoJagualJayuyaJuana DiazJuncosLA PicaLajasLaresLas MariasLas PiedrasLuquilloMameyes AbajoMameyes ArribaManatiMaricaoMaunaboMayaguezMocaMorovisNaguaboNaranjitoNegrosOrocovisPatillasPenuelasPoncePugnadoQuebradillasRancherasRayo PlataRinconRio GrandeSabana GrandeSabana HoyosSalinasSan GermanSan JuanSan LorenzoSan SebastianSanta IsabelTabonucoToa AltaToa BajaUtaudoUtuadoVega AltaVega BajaViequesVillalbaYabucoaYauco