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Reservoirs

Levels for the 19 reservoirs on AAA's daily bulletin

Carite

Guayama

Safety

541.79m

1,777.51 ft

0.63 m above Observation

Data as of August 23, 2026 · Reading taken at 5:00 AM

Compared with normal

1.16 m below normal for this date

A ±7-day window around August 23, 2026, this reservoir's own most recent reading.

Percentile 16 across 21 years of record.

Rank 49 of 309 readings from these dates. Rank 1 is the lowest.

The rank counts individual readings, not years.

Most recent year lower on this date: 2025.

Median
542.95 m
Minimum
538.52 m2007
Maximum
543.86 m2011
90th percentile
543.04 m

Level over time

Resolution follows the range: daily up to a year, weekly at five years, monthly across the whole record.

Carite: level from July 25, 2026 to August 23, 2026, a net fall of 0.48 m.

August 23, 2026: 541.79 m.

Hover the chart or use the arrow keys to read a point.

From July 25, 2026 to August 23, 2026. Minimum 541.79 m, maximum 542.26 m.

The vertical scale runs from 541.70 m to 542.30 m and does not start at zero: these are metres above sea level.

5 bounds fall outside this chart’s scale.

Carite: level from July 25, 2026 to August 23, 2026, a net fall of 0.48 m.
Datem
July 25, 2026542.26
July 26, 2026542.25
July 27, 2026542.23
July 28, 2026542.21
July 29, 2026542.18
July 30, 2026542.18
July 31, 2026542.15
August 1, 2026542.13
August 2, 2026542.11
August 3, 2026542.10
August 4, 2026542.07
August 5, 2026542.07
August 6, 2026542.06
August 7, 2026542.01
August 8, 2026542.00
August 9, 2026541.98
August 10, 2026541.97
August 11, 2026541.96
August 12, 2026541.98
August 13, 2026541.97
August 14, 2026541.95
August 15, 2026541.93
August 16, 2026541.92
August 17, 2026541.89
August 18, 2026541.88
August 19, 2026541.86
August 20, 2026541.85
August 21, 2026541.82
August 22, 2026541.81
August 23, 2026541.79

Projection

Disabled

This portal does not publish projections yet. Saying when a reservoir would reach its next phase is a claim about the future of a great many people's water, and before publishing one we want the rule for when it may and may not be made written down.

Every August 23 in the record

Compare another date

Hover the dots or use the arrow keys.

3 years of the 22 with a reading on August 23 were below the most recent level.

From 2005 to 2026.

The dashed line is this reservoir’s most recent level: 541.79 m on August 23, 2026.

The vertical scale runs from 538.00 m to 544.00 m and does not start at zero: these are metres above sea level.

Years with no reading on this date are not in the record and are left as empty space on the axis.

Years below the most recent level are marked with a filled dot.

This counts years. The rank in the block above counts readings.

3 years of the 22 with a reading on August 23 were below the most recent level.
Every August 23 in the recordm
2005542.96
2006542.95
2007538.87
2008539.68
2009542.95
2010543.04
2011543.86
2012542.93
2013543.00
2014543.09
2015539.16
2016542.95
2017543.01
2018542.96
2019542.71
2020543.08
2021542.13
2022542.57
2023543.07
2024543.00
2025541.94
2026541.79

When it has been in each phase

Hover the bands or use the arrow keys.

Each band is one run in one phase, since January 1, 2020.

The axis is calendar time, from January 1, 2020 to August 23, 2026. Stretches with no bulletin are left blank.

Current run

83 days in Safety, since May 31, 2026.

The longest run in Safety on record: 324 days, from October 30, 2021 to September 18, 2022.

Counts bulletin days, not calendar days.

Each band is one run in one phase, since January 1, 2020.
PhaseFromToBulletin days
SafetyJanuary 1, 2020February 25, 202056
OverflowFebruary 26, 2020February 26, 20201
SafetyFebruary 27, 2020March 2, 20205
OverflowMarch 3, 2020March 4, 20202
SafetyMarch 5, 2020March 9, 20205
OverflowMarch 10, 2020March 17, 20208
SafetyMarch 18, 2020March 18, 20201
OverflowMarch 19, 2020April 1, 202014
SafetyApril 2, 2020July 30, 2020120
OverflowJuly 31, 2020August 4, 20205
SafetyAugust 5, 2020August 22, 202018
OverflowAugust 23, 2020August 28, 20206
SafetyAugust 29, 2020September 3, 20206
OverflowSeptember 4, 2020September 4, 20201
SafetySeptember 5, 2020September 30, 202026
OverflowOctober 1, 2020October 14, 202014
SafetyOctober 15, 2020October 15, 20201
OverflowOctober 16, 2020October 22, 20207
SafetyOctober 23, 2020October 27, 20205
OverflowOctober 28, 2020January 4, 202169
SafetyJanuary 5, 2021January 5, 20211
OverflowJanuary 6, 2021January 6, 20211
SafetyJanuary 7, 2021October 21, 2021282
OverflowOctober 22, 2021October 29, 20218
SafetyOctober 30, 2021September 18, 2022324
OverflowSeptember 19, 2022January 20, 2023124
SafetyJanuary 21, 2023April 8, 202378
OverflowApril 9, 2023April 10, 20232
SafetyApril 11, 2023April 24, 202314
OverflowApril 25, 2023April 28, 20234
SafetyApril 29, 2023June 29, 202362
OverflowJune 30, 2023July 14, 202315
SafetyJuly 15, 2023July 17, 20233
OverflowJuly 18, 2023July 18, 20231
SafetyJuly 19, 2023July 26, 20238
OverflowJuly 27, 2023July 30, 20234
SafetyJuly 31, 2023August 2, 20233
OverflowAugust 3, 2023October 15, 202374
SafetyOctober 16, 2023October 16, 20231
OverflowOctober 17, 2023December 3, 202348
SafetyDecember 4, 2023December 4, 20231
OverflowDecember 5, 2023December 8, 20234
SafetyDecember 9, 2023December 10, 20232
OverflowDecember 11, 2023December 30, 202320
SafetyDecember 31, 2023February 6, 202438
OverflowFebruary 7, 2024February 13, 20247
SafetyFebruary 14, 2024April 19, 202466
OverflowApril 20, 2024May 15, 202426
SafetyMay 16, 2024May 22, 20247
OverflowMay 23, 2024May 31, 20249
SafetyJune 1, 2024June 2, 20242
OverflowJune 3, 2024June 22, 202420
SafetyJune 23, 2024August 14, 202453
OverflowAugust 15, 2024October 29, 202476
SafetyOctober 30, 2024October 31, 20242
OverflowNovember 1, 2024January 15, 202576
SafetyJanuary 16, 2025January 18, 20253
OverflowJanuary 19, 2025January 19, 20251
SafetyJanuary 20, 2025January 22, 20253
OverflowJanuary 23, 2025February 3, 202512
SafetyFebruary 4, 2025February 11, 20258
OverflowFebruary 12, 2025February 12, 20251
SafetyFebruary 13, 2025February 13, 20251
OverflowFebruary 14, 2025February 19, 20256
SafetyFebruary 20, 2025February 20, 20251
OverflowFebruary 21, 2025February 22, 20252
SafetyFebruary 23, 2025February 25, 20253
OverflowFebruary 26, 2025March 5, 20258
SafetyMarch 6, 2025March 7, 20252
OverflowMarch 8, 2025March 10, 20253
SafetyMarch 11, 2025August 15, 2025155
ObservationAugust 16, 2025August 16, 20251
SafetyAugust 17, 2025October 24, 202569
OverflowOctober 25, 2025November 6, 202513
SafetyNovember 7, 2025February 15, 2026101
OverflowFebruary 16, 2026February 19, 20264
SafetyFebruary 20, 2026March 26, 202635
OverflowMarch 27, 2026April 14, 202619
SafetyApril 15, 2026April 16, 20262
OverflowApril 17, 2026April 24, 20268
SafetyApril 25, 2026April 28, 20264
OverflowApril 29, 2026April 29, 20261
SafetyApril 30, 2026May 16, 202617
OverflowMay 17, 2026May 30, 202614
SafetyMay 31, 2026August 23, 202683

How we read the data

Every figure on this portal is the 5:00 AM AST reading from the USGS gauge, every day, at every reservoir. AAA's daily bulletin is drawn at 4:55 AM and carries the freshest reading that had arrived by press time; the gauges transmit once an hour, and the 5:00 AM reading is published around 5:57 AM. On days when levels move quickly the two figures can therefore differ by about a centimetre. Each is correct for its own cut-off. Ours holds the same 24-hour interval every day, which is what makes our day-over-day changes directly comparable to one another.

We read the same USGS gauges that underpin the bulletin. The alert phases (Overflow, Safety, Observation, Operational adjustments, Control) are the thresholds AAA publishes for each reservoir; AAA prints them in Spanish, as Desborde, Seguridad, Observación, Ajustes and Control.

Source

Data: U.S. Geological Survey (USGS)

Provisional data

Provisional data: values are preliminary, have not been reviewed or approved by the U.S. Geological Survey, and are subject to revision or removal as the record is finalized. Do not use them for decisions involving personal or public safety, or property.

Daily reservoir level bulletin: Autoridad de Acueductos y Alcantarillados de Puerto Rico.

This portal is not an official channel of the Autoridad de Acueductos y Alcantarillados. For service notices, consult AAA.