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Reservoir levels

Reservoir map

Every reservoir where it actually sits, with NWS radar over it.

19 of 19 reservoirs reporting

All 19 in the detailed view

Reservoirs

19 of 19 reservoirs reporting
Base map
Layer

Our own base map · Protomaps + OpenStreetMap · NOAA/NWS nowCOAST

AAA alert phases

  • Overflow — At capacity; the excess leaves over the spillway.
  • Safety — Normal operating level.
  • Observation — Below the safety mark; under monitoring.
  • Operational adjustments — AAA reduces withdrawal to stretch the reserve.
  • Control — Critical level.
  • Out of service — Below the point of reliable withdrawal.

Tap a reservoir on the map

1Overflow16Safety1Observation1Operational adjustments
Detailed view
All 19, in text. The same reservoirs the map shows, as a table: name, municipality, phase in words, level and share of its operating range. Phase and level come from the most recent reading; the 24-hour change is measured between bulletins.
ReservoirMunicipalityPhaseMost recent level5:00 AM bulletin levelPercent of range24-hour change
CarraízoTrujillo AltoSafety40.86 mTaken at 6:45 AM; it is also the October 15, 2026 AAA official bulletin figureNo data99%-0.06 m
La PlataComeríoOperational adjustments43.46 mTaken at 6:45 AM43.46 m63%-0.04 m
CidraCidraObservation400.66 mTaken at 6:45 AM; it is also the October 15, 2026 AAA official bulletin figureNo data69%0.00 m
Toa VacaVillalbaSafety147.02 mTaken at 7:15 AM; it is also the October 15, 2026 AAA official bulletin figureNo data59%+0.03 m
Río BlancoNaguaboSafety27.86 mTaken at 6:30 AM27.86 m90%-0.02 m
FajardoFajardoSafety49.17 mTaken at 6:30 AM49.16 m80%+0.03 m
CariteGuayamaSafety542.57 mTaken at 7:15 AM; it is also the October 15, 2026 AAA official bulletin figureNo data97%0.00 m
PatillasPatillasSafety65.67 mTaken at 6:45 AM65.69 m97%-0.20 m
El GuineoOrocovisSafety901.09 mTaken at 6:45 AM901.09 m86%+0.20 m
MatrullasOrocovisSafety733.57 mTaken at 6:45 AM733.57 m69%-0.04 m
GuayabalJuana DíazSafety103.62 mTaken at 6:45 AM103.62 m94%+0.13 m
GarzasAdjuntasSafety736.08 mTaken at 6:45 AM; it is also the October 15, 2026 AAA official bulletin figureNo data100%0.00 m
GuayoLaresSafety444.01 mTaken at 6:45 AM444.00 m88%+0.12 m
LucchettiYaucoSafety172.35 mTaken at 6:45 AM172.35 m83%+0.01 m
LocoYaucoSafety69.78 mTaken at 6:45 AM69.81 m90%-0.08 m
Dos BocasAreciboOverflow90.00 mTaken at 6:45 AM89.96 m100%+0.23 m
CaonillasUtuadoSafety251.86 mTaken at 6:45 AM251.86 m99%+0.04 m
GuajatacaQuebradillasSafety196.36 mTaken at 6:45 AM; it is also the October 15, 2026 AAA official bulletin figureNo data99%-0.02 m
CerrillosPonceSafety166.61 mTaken at 6:45 AM166.60 m78%+0.10 m