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Day Six: Carraízo Rose 26 Centimeters

Published Aug 13, 2026, 6:06 AM AST787daily · Original analysis

At a glance

  • Carraízo rose 26 cm to 37.79 m (ajustes band) — 0.79 m above the control line
  • La Plata fell 5 cm to 46.11 m (observación band) — 1.21 m above the ajustes line, roughly 24.2 days at the current pace
  • Day 6 of the metro rotation that began Aug 8; levels are read each morning from AAA’s own 5:00 AM chart for our reservoir board

Why this matters: The number that matters is the gap to the next band line: 0.79 m for Carraízo, 1.21 m for La Plata. Straight-line dates move every day — the daily check is the point.

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Day 6 of the metro rotation. This morning’s 5:00 chart from the Autoridad de Acueductos y Alcantarillados shows Carraízo at 37.79 meters — up 26 centimeters from yesterday, and La Plata at 46.11 meters — down 5 centimeters from yesterday.

This is the third entry in our daily chart check (yesterday’s is here), built the same way every morning — from AAA’s own numbers, read off its charts for our reservoir board.

Carraízo: a rise

Carraízo gained ground overnight. This morning’s chart puts it at 37.79 meters — up 26 centimeters from yesterday, in the ajustes band. The next line on the chart — into the control band — sits at 37.00 meters, 0.79 meters below this morning’s reading.

control line · 37.00 m 37.64 37.79 — today ▲
Carraízo since Aug 7 (meters above sea level), against the control line. Data: AAA Monitoreo Diario.

Carraízo · August 13

Level today
37.79 mband: ajustes
Change since yesterday
+26 cm
To the control line
0.79 mline at 37.00 m
At the current pace
rising

La Plata: down 5 cm

La Plata kept sliding. This morning’s chart puts it at 46.11 meters — down 5 centimeters from yesterday, in the observación band. The next line on the chart — into the ajustes band — sits at 44.90 meters, 1.21 meters below this morning’s reading. At AAA’s printed pace that is roughly 24.2 days out (straight-line date: Sep 7 — a projection, not a forecast; one wet afternoon moves it).

If your water comes from La Plata — Dorado, Guaynabo, Naranjito, Toa Alta, Toa Baja, Vega Alta, Bayamón, Cataño, Corozal — this is the reservoir to watch; AAA lists 130,828 client accounts on it.

ajustes line · 44.90 m 46.55 46.11 — today ▼ at the current ~5 cm/day pace
La Plata since Aug 7 (meters above sea level), against the ajustes line. Data: AAA Monitoreo Diario.

La Plata · August 13

Level today
46.11 mband: observación
Change since yesterday
-5 cm
To the ajustes line
1.21 mline at 44.90 m
At the current pace
≈ 24.2 daysstraight-line date: Sep 7

The other rationing reservoir

Cidra · August 13

Level today
400.17 mband: ajustes
Change since yesterday
+2 cm
To the control line
1.80 mline at 398.37 m
At the current pace
rising

Numbers from AAA’s Monitoreo Diario chart of Aug 13, read each morning for our reservoir board — where the levels, the bands, and the live rain gauges update daily. Day counts start Aug 8, when the metro rotation took effect. Straight-line dates are arithmetic, not forecasts.

In context — 787daily, from public data

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