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Water Week in Review: Carraízo Down 12 cm, Nov 8–14

Published Nov 15, 2026, 6:04 AM AST787daily · Original analysis

At a glance

  • Carraízo: 40.96 → 40.84 m (−12 cm) over 6 days, Safe band, 4.41 in of rain nearby in the final week
  • La Plata: 42.38 → 43.25 m (+87 cm) over 6 days, Adjustments band, 1.12 in of rain nearby in the final week
  • Cidra: 400.82 → 400.95 m (+13 cm) over 6 days, Watch band, 3.97 in of rain nearby in the final week
  • Readings of November 8–14: the Puerto Rico Aqueduct and Sewer Authority (AAA) posted a chart on 7 of 7 days

Why this matters: What the week changed is the distance to the next band line (1.14 m for Carraízo, 2.75 m for La Plata) and the pace at which it is closing or opening.

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The week of November 8–14 on AAA’s reservoir charts: Carraízo down 12 cm, La Plata up 87 cm. The numbers first, then what they add up to.

Where the reservoirs stand

Control Adjustments Ajustes Watch Observación Safe Seguridad Spilling Carraízo, 40.84 m, Safe (Seguridad), +320 cm since Aug 7, +1 cm vs Nov 7 40.84 Carraízo La Plata, 43.25 m, Adjustments (Ajustes), −330 cm since Aug 7, +115 cm vs Nov 7 43.25 La Plata Cidra, 400.95 m, Watch (Observación), +78 cm since Aug 7, +13 cm vs Nov 7 400.95 Cidra Toa Vaca, 148.39 m, Safe (Seguridad), +75 cm since Aug 7, +12 cm vs Nov 7 148.39 Toa Vaca Río Blanco, 28.71 m, Safe (Seguridad), +305 cm since Aug 7, +31 cm vs Nov 7 28.71 Río Blanco Fajardo, 51.55 m, Safe (Seguridad), +396 cm since Aug 7, +36 cm vs Nov 7 51.55 Fajardo AAA: DRINKING WATER Carite, 542.79 m, Safe (Seguridad), +78 cm since Aug 7, +4 cm vs Nov 7 542.79 Carite Patillas, 65.23 m, Safe (Seguridad), +141 cm since Aug 7, −49 cm vs Nov 7 65.23 Patillas Guineo, 902.42 m, Spilling (Desborde), ±0 cm since Aug 7, +21 cm vs Nov 7 902.42 Guineo Matrullas, 735.48 m, Safe (Seguridad), +249 cm since Aug 7, +79 cm vs Nov 7 735.48 Matrullas Guayabal, 103.84 m, Safe (Seguridad), +149 cm since Aug 7, −6 cm vs Nov 7 103.84 Guayabal Garzas, 736.01 m, Safe (Seguridad), +2 cm since Aug 7, −5 cm vs Nov 7 736.01 Garzas Guayo, 444.51 m, Safe (Seguridad), +172 cm since Aug 7, −61 cm vs Nov 7 444.51 Guayo Lucchetti, 172.18 m, Safe (Seguridad), +85 cm since Aug 7, +51 cm vs Nov 7 172.18 Lucchetti Loco, 70.19 m, Spilling (Desborde), +41 cm since Aug 7, −2 cm vs Nov 7 70.19 Loco Dos Bocas, 89.28 m, Safe (Seguridad), −28 cm since Aug 7, −52 cm vs Nov 7 89.28 Dos Bocas Caonillas, 251.80 m, Safe (Seguridad), +109 cm since Aug 7, +4 cm vs Nov 7 251.80 Caonillas Guajataca, 196.02 m, Safe (Seguridad), +8 cm since Aug 7, −34 cm vs Nov 7 196.02 Guajataca PREPA: HYDROELECTRIC Cerrillos, 166.48 m, Safe (Seguridad), −185 cm since Aug 7, +27 cm vs Nov 7 166.48 Cerrillos DRNA
Week 15 of the metro rotation (the San Juan area's rationing schedule). Where the 19 reservoirs stand as of Nov 14: each column is that reservoir's own ladder of AAA bands, the bar its level in meters, the dashed tick where it stood on August 7, day one of the rotation, the triangle its change from seven days earlier. Source: AAA's 5 AM readings; bands as AAA's monitoring chart defines them.

17 of 19 reservoirs sit in the Safe band (Seguridad) or above, 1 in the Watch band (Observación); La Plata is in the Adjustments band (Ajustes). Since August 7, Carraízo (Adjustments → Safe), Cidra (Adjustments → Watch), Río Blanco (Watch → Safe), Fajardo (Watch → Safe), Matrullas (Watch → Safe), Guayabal (Watch → Safe), Loco (Safe → Spilling) have moved up a band; La Plata (Watch → Adjustments) has slipped down. The biggest move since Nov 7 is La Plata, up 115 cm to 43.25 m.

Reservoir by reservoir

Carraízo

Nov 8 → Nov 14
40.96 → 40.84 mSafe band today
Net change
−12 cm2 cm a day on average
Best morning
+2 cmNov 10
Worst morning
−8 cmNov 9
Rain nearby, last 7 days
4.41 inmost on Nov 9 (2.36 in)
Above the Watch line
1.14 m≈ 57 days at this week's pace

La Plata

Nov 8 → Nov 14
42.38 → 43.25 mAdjustments band today
Net change
+87 cm14.5 cm a day on average
Best morning
+42 cmNov 10
Worst morning
−6 cmNov 15
Rain nearby, last 7 days
1.12 inmost on Nov 8 (0.65 in)
Above the Control line
2.75 mrising: Watch line ≈ 11 days up

Cidra

Nov 8 → Nov 14
400.82 → 400.95 mWatch band today
Net change
+13 cm2.2 cm a day on average
Best morning
+12 cmNov 9
Worst morning
−2 cmNov 15
Rain nearby, last 7 days
3.97 inmost on Nov 8 (1.74 in)
Above the Adjustments line
0.72 mrising: Safe line ≈ 35 days up

Carraízo, this week

Carraízo, morning by morning. Tap a day for that day's Daily Water Watch

Teal = up from the previous reading, coral = down; a bold border marks a move of 20 cm or more. A day with no chart is grey, and the next day's move covers both.

Three reservoirs, one scale

0 +87 cm −12 cm Nov 8 Nov 14 Carraízo, Nov 8, 40.96 m, ±0 cm since Nov 8Carraízo, Nov 8, 40.96 m, ±0 cm since Nov 8Carraízo, Nov 9, 40.88 m, −8 cm since Nov 8Carraízo, Nov 9, 40.88 m, −8 cm since Nov 8Carraízo, Nov 10, 40.90 m, −6 cm since Nov 8Carraízo, Nov 10, 40.90 m, −6 cm since Nov 8Carraízo, Nov 11, 40.84 m, −12 cm since Nov 8Carraízo, Nov 11, 40.84 m, −12 cm since Nov 8Carraízo, Nov 12, 40.84 m, −12 cm since Nov 8Carraízo, Nov 12, 40.84 m, −12 cm since Nov 8Carraízo, Nov 13, 40.84 m, −12 cm since Nov 8Carraízo, Nov 13, 40.84 m, −12 cm since Nov 8Carraízo, Nov 14, 40.84 m, −12 cm since Nov 8Carraízo, Nov 14, 40.84 m, −12 cm since Nov 8Carraízo −12 cm La Plata, Nov 8, 42.38 m, ±0 cm since Nov 8La Plata, Nov 8, 42.38 m, ±0 cm since Nov 8La Plata, Nov 9, 42.51 m, +13 cm since Nov 8La Plata, Nov 9, 42.51 m, +13 cm since Nov 8La Plata, Nov 10, 42.93 m, +55 cm since Nov 8La Plata, Nov 10, 42.93 m, +55 cm since Nov 8La Plata, Nov 11, 43.15 m, +77 cm since Nov 8La Plata, Nov 11, 43.15 m, +77 cm since Nov 8La Plata, Nov 12, 43.22 m, +84 cm since Nov 8La Plata, Nov 12, 43.22 m, +84 cm since Nov 8La Plata, Nov 13, 43.25 m, +87 cm since Nov 8La Plata, Nov 13, 43.25 m, +87 cm since Nov 8La Plata, Nov 14, 43.25 m, +87 cm since Nov 8La Plata, Nov 14, 43.25 m, +87 cm since Nov 8La Plata +87 cm Cidra, Nov 8, 400.82 m, ±0 cm since Nov 8Cidra, Nov 8, 400.82 m, ±0 cm since Nov 8Cidra, Nov 9, 400.94 m, +12 cm since Nov 8Cidra, Nov 9, 400.94 m, +12 cm since Nov 8Cidra, Nov 10, 400.95 m, +13 cm since Nov 8Cidra, Nov 10, 400.95 m, +13 cm since Nov 8Cidra, Nov 11, 400.95 m, +13 cm since Nov 8Cidra, Nov 11, 400.95 m, +13 cm since Nov 8Cidra, Nov 12, 400.95 m, +13 cm since Nov 8Cidra, Nov 12, 400.95 m, +13 cm since Nov 8Cidra, Nov 13, 400.95 m, +13 cm since Nov 8Cidra, Nov 13, 400.95 m, +13 cm since Nov 8Cidra, Nov 14, 400.95 m, +13 cm since Nov 8Cidra, Nov 14, 400.95 m, +13 cm since Nov 8Cidra +13 cm
Change since Nov 8, in centimeters: three reservoirs on one scale. Hover or tap a point for the day's reading. Data: AAA Monitoreo Diario.

What it adds up to

Carraízo started the week at 40.96 m and ends it down 12 cm, at 40.84 m (Safe band), an average of 2 cm a day over 6 days. Of 6 day-to-day changes, 2 were falls and 1 rises, with 3 unchanged. The sharpest fall was −8 cm on November 9. The biggest gain was +2 cm on November 10, the morning after 2.36 in of rain at the nearby gauges. It sits 1.14 m above the Watch line (the next band down). Gauges the U.S. Geological Survey (USGS) runs nearby recorded 4.41 in of rain in the final week. At the latest weekly pace the Watch line (39.70 m) is about 57 days off, around January 10; arithmetic, not a forecast.

La Plata started the week at 42.38 m and ends it up 87 cm, at 43.25 m (Adjustments band), an average of 14.5 cm a day over 6 days. Of 6 day-to-day changes, 0 were falls and 5 rises, with 1 unchanged. The sharpest fall was −6 cm on November 15. The biggest gain was +42 cm on November 10. It sits 2.75 m above the Control line (the next band down). Gauges USGS runs nearby recorded 1.12 in of rain in the final week. If the latest weekly rise held, it would climb into the Watch band (Observación) above (line at 44.90 m) in about 11 days.

Cidra started the week at 400.82 m and ends it up 13 cm, at 400.95 m (Watch band), an average of 2.2 cm a day over 6 days. Of 6 day-to-day changes, 0 were falls and 2 rises, with 4 unchanged. The sharpest fall was −2 cm on November 15. The biggest gain was +12 cm on November 9, the morning after 1.74 in of rain at the nearby gauges. It sits 0.72 m above the Adjustments line (the next band down). Gauges USGS runs nearby recorded 3.97 in of rain in the final week. If the latest weekly rise held, it would climb into the Safe band (Seguridad) above (line at 401.71 m) in about 35 days.

Each reservoir against its own next band line
Adjustments Watch Safe 37.0 37.5 38.0 38.5 39.0 39.5 40.0 40.5 41.0 Nov 8 Nov 11 Nov 14 Nov 8, 40.96 m, SpillingNov 9, 40.88 m, −8 cm, SafeNov 10, 40.90 m, +2 cm, SafeNov 11, 40.84 m, −6 cm, SafeNov 12, 40.84 m, +0 cm, SafeNov 13, 40.84 m, +0 cm, SafeNov 14, 40.84 m, +0 cm, Safe 40.84 m at ~2 cm/day
Carraízo since Nov 8, meters above sea level, shaded by AAA alert band. Data: AAA Monitoreo Diario.
Show the numbers
  • Nov 8, 40.96 m, Spilling
  • Nov 9, 40.88 m, −8 cm, Safe
  • Nov 10, 40.90 m, +2 cm, Safe
  • Nov 11, 40.84 m, −6 cm, Safe
  • Nov 12, 40.84 m, +0 cm, Safe
  • Nov 13, 40.84 m, +0 cm, Safe
  • Nov 14, 40.84 m, +0 cm, Safe
Adjustments Watch Safe 40 42 44 46 48 50 52 Nov 8 Nov 11 Nov 14 Nov 8, 42.38 m, AdjustmentsNov 9, 42.51 m, +13 cm, AdjustmentsNov 10, 42.93 m, +42 cm, AdjustmentsNov 11, 43.15 m, +22 cm, AdjustmentsNov 12, 43.22 m, +7 cm, AdjustmentsNov 13, 43.25 m, +3 cm, AdjustmentsNov 14, 43.25 m, +0 cm, Adjustments 43.25 m
La Plata since Nov 8, meters above sea level, shaded by AAA alert band. Data: AAA Monitoreo Diario.
Show the numbers
  • Nov 8, 42.38 m, Adjustments
  • Nov 9, 42.51 m, +13 cm, Adjustments
  • Nov 10, 42.93 m, +42 cm, Adjustments
  • Nov 11, 43.15 m, +22 cm, Adjustments
  • Nov 12, 43.22 m, +7 cm, Adjustments
  • Nov 13, 43.25 m, +3 cm, Adjustments
  • Nov 14, 43.25 m, +0 cm, Adjustments
Adjustments Watch Safe 398 399 400 401 402 403 Nov 8 Nov 11 Nov 14 Nov 8, 400.82 m, WatchNov 9, 400.94 m, +12 cm, WatchNov 10, 400.95 m, +1 cm, WatchNov 11, 400.95 m, +0 cm, WatchNov 12, 400.95 m, +0 cm, WatchNov 13, 400.95 m, +0 cm, WatchNov 14, 400.95 m, +0 cm, Watch 400.95 m
Cidra since Nov 8, meters above sea level, shaded by AAA alert band. Data: AAA Monitoreo Diario.
Show the numbers
  • Nov 8, 400.82 m, Watch
  • Nov 9, 400.94 m, +12 cm, Watch
  • Nov 10, 400.95 m, +1 cm, Watch
  • Nov 11, 400.95 m, +0 cm, Watch
  • Nov 12, 400.95 m, +0 cm, Watch
  • Nov 13, 400.95 m, +0 cm, Watch
  • Nov 14, 400.95 m, +0 cm, Watch
This week's 6 Daily Water Watches

Levels: AAA’s daily reservoir chart, Nov 8–14. Rain: gauges USGS runs within 12 km of each reservoir. Rates and dates are arithmetic, not forecasts. How we report.

In context (787daily, from public data)

About this analysisOriginal 787daily analysis of seven days of validated reservoir readings and AAA notices · Report an error
Cite this

Source: 787daily, “Water Week in Review: Carraízo Down 12 cm, Nov 8–14”, Nov 15, 2026, https://787daily.com/news/2026-11-15-water-week-in-review-carraizo-down-12-cm-nov-8-14/

Numbers from
Seven days of validated reservoir readings and AAA notices
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Every Water Week in Review

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Background

About Water Week in Review

The reservoirs' week in one read: which lakes rose or fell, how the bands moved, and what the rationing calendar did.

Published
Sundays
Source
Seven days of validated reservoir readings and AAA notices
Water

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