This morning’s 5:00 chart from AAA shows Carraízo at 40.75 meters, down 1 centimeter from yesterday. La Plata is flat at 42.27 meters.
Service today
Day 85 of the metro rotation, the San Juan area’s rationing schedule, with interruptions paused since September 2, and AAA has not canceled it.
AAA’s Cedro Arriba plan in Naranjito is in effect: Zone C and Zone D take turns every 48 hours; Zone D has water until Sunday at 6:00 AM.
AAA has posted no plan change, open outage or water-quality notice in the last three days.
Every notice AAA posts is on the water page, in its own words.
Reservoirs
Carraízo: down 1 cm
Carraízo kept sliding. This morning’s chart puts it at 40.75 meters, down 1 centimeter from yesterday, in the Safe band (Seguridad). The next line on the chart, into the Watch band (Observación), sits at 39.70 meters, 1.05 meters below this morning’s reading.
Show the numbers
- Sep 1, 37.20 m, Adjustments
- Sep 2, 38.92 m, +172 cm, Watch
- Sep 3, 39.11 m, +19 cm, Watch
- Sep 4, 39.09 m, −2 cm, Watch
- Sep 5, 39.01 m, −8 cm, Watch
- Sep 6, 38.94 m, −7 cm, Watch
- Sep 7, 38.87 m, −7 cm, Watch
- Sep 8, 38.83 m, −4 cm, Watch
- Sep 9, 39.02 m, +19 cm, Watch
- Sep 10, 39.07 m, +5 cm, Watch
- Sep 11, 39.20 m, +13 cm, Watch
- Sep 12, 39.19 m, −1 cm, Watch
- Sep 13, 39.14 m, −5 cm, Watch
- Sep 14, 39.16 m, +2 cm, Watch
- Sep 15, 39.25 m, +9 cm, Watch
- Sep 16, 39.23 m, −2 cm, Watch
- Sep 17, 40.06 m, +83 cm, Safe
- Sep 18, 40.64 m, +58 cm, Safe
- Sep 19, 40.80 m, +16 cm, Safe
- Sep 20, 40.81 m, +1 cm, Safe
- Sep 21, 40.79 m, −2 cm, Safe
- Sep 22, 40.75 m, −4 cm, Safe
- Sep 23, 40.70 m, −5 cm, Safe
- Sep 24, 40.68 m, −2 cm, Safe
- Sep 25, 40.68 m, +0 cm, Safe
- Sep 26, 40.67 m, −1 cm, Safe
- Sep 27, 40.63 m, −4 cm, Safe
- Sep 28, 40.58 m, −5 cm, Safe
- Sep 29, 40.53 m, −5 cm, Safe
- Sep 30, 40.51 m, −2 cm, Safe
- Oct 1, 40.47 m, −4 cm, Safe
- Oct 2, 40.60 m, +13 cm, Safe
- Oct 3, 40.70 m, USGS gauge at 5 AM, Safe
- Oct 4, 40.74 m, +4 cm, Safe
- Oct 5, 40.72 m, −2 cm, Safe
- Oct 6, 40.69 m, −3 cm, Safe
- Oct 7, 40.65 m, −4 cm, Safe
- Oct 8, 40.88 m, +23 cm, Safe
- Oct 9, 40.94 m, +6 cm, Safe
- Oct 10, 40.91 m, −3 cm, Safe
- Oct 11, 40.96 m, +5 cm, Spilling
- Oct 12, 40.86 m, −10 cm, Safe
- Oct 13, 40.90 m, +4 cm, Safe
- Oct 14, 40.94 m, +4 cm, Safe
- Oct 15, 40.85 m, −9 cm, Safe
- Oct 16, 40.87 m, +2 cm, Safe
- Oct 17, 40.85 m, −2 cm, Safe
- Oct 18, 40.85 m, +0 cm, Safe
- Oct 19, 40.87 m, +2 cm, Safe
- Oct 20, 40.86 m, −1 cm, Safe
- Oct 21, 40.88 m, +2 cm, Safe
- Oct 22, 40.85 m, −3 cm, Safe
- Oct 23, 40.81 m, −4 cm, Safe
- Oct 24, 40.77 m, −4 cm, Safe
- Oct 25, 40.75 m, −2 cm, Safe
- Oct 26, 40.75 m, +0 cm, Safe
- Oct 27, 40.73 m, −2 cm, Safe
- Oct 28, 40.77 m, +4 cm, Safe
- Oct 29, 40.76 m, −1 cm, Safe
- Oct 30, 40.75 m, −1 cm, Safe
- Oct 24, 0.26 in of rain
- Oct 25, 0.01 in of rain
- Oct 26, 0.49 in of rain
- Oct 27, 0.19 in of rain
- Oct 28, 0.01 in of rain
- Oct 29, 0.01 in of rain
Carraízo, October 30
- Level today
- 40.75 mSafe band
- Change since yesterday
- −1 cm
- To the Watch line
- 1.05 mline at 39.70 m
- At this week's pace
- holding
La Plata: holding
La Plata held its level. This morning’s chart puts it flat at 42.27 meters, in the Adjustments band (Ajustes). The next line on the chart, into the Control band, sits at 40.50 meters, 1.77 meters below this morning’s reading. At this week’s pace that is about 22 days away (at this pace, November 21: 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.
Show the numbers
- Sep 1, 44.59 m, Adjustments
- Sep 2, 44.59 m, +0 cm, Adjustments
- Sep 3, 44.59 m, +0 cm, Adjustments
- Sep 4, 44.57 m, −2 cm, Adjustments
- Sep 5, 44.54 m, −3 cm, Adjustments
- Sep 6, 44.52 m, −2 cm, Adjustments
- Sep 7, 44.46 m, −6 cm, Adjustments
- Sep 8, 44.40 m, −6 cm, Adjustments
- Sep 9, 44.32 m, −8 cm, Adjustments
- Sep 10, 44.24 m, −8 cm, Adjustments
- Sep 11, 44.14 m, −10 cm, Adjustments
- Sep 12, 44.25 m, +11 cm, Adjustments
- Sep 13, 44.26 m, +1 cm, Adjustments
- Sep 14, 44.40 m, +14 cm, Adjustments
- Sep 15, 44.46 m, +6 cm, Adjustments
- Sep 16, 44.40 m, −6 cm, Adjustments
- Sep 17, 44.36 m, −4 cm, Adjustments
- Sep 18, 44.40 m, +4 cm, Adjustments
- Sep 19, 44.61 m, +21 cm, Adjustments
- Sep 20, 44.66 m, +5 cm, Adjustments
- Sep 21, 44.70 m, +4 cm, Adjustments
- Sep 22, 44.72 m, +2 cm, Adjustments
- Sep 23, 44.68 m, −4 cm, Adjustments
- Sep 24, 44.63 m, −5 cm, Adjustments
- Sep 25, 44.56 m, −7 cm, Adjustments
- Sep 26, 44.47 m, −9 cm, Adjustments
- Sep 27, 44.39 m, −8 cm, Adjustments
- Sep 28, 44.31 m, −8 cm, Adjustments
- Sep 29, 44.22 m, −9 cm, Adjustments
- Sep 30, 44.13 m, −9 cm, Adjustments
- Oct 1, 44.04 m, −9 cm, Adjustments
- Oct 2, 43.96 m, −8 cm, Adjustments
- Oct 3, 43.87 m, USGS gauge at 5 AM, Adjustments
- Oct 4, 43.79 m, −8 cm, Adjustments
- Oct 5, 43.71 m, −8 cm, Adjustments
- Oct 6, 43.70 m, −1 cm, Adjustments
- Oct 7, 43.68 m, −2 cm, Adjustments
- Oct 8, 43.62 m, −6 cm, Adjustments
- Oct 9, 43.54 m, −8 cm, Adjustments
- Oct 10, 43.52 m, −2 cm, Adjustments
- Oct 11, 43.50 m, −2 cm, Adjustments
- Oct 12, 43.45 m, −5 cm, Adjustments
- Oct 13, 43.45 m, +0 cm, Adjustments
- Oct 14, 43.50 m, +5 cm, Adjustments
- Oct 15, 43.47 m, −3 cm, Adjustments
- Oct 16, 43.39 m, −8 cm, Adjustments
- Oct 17, 43.29 m, −10 cm, Adjustments
- Oct 18, 43.18 m, −11 cm, Adjustments
- Oct 19, 43.07 m, −11 cm, Adjustments
- Oct 20, 43.00 m, −7 cm, Adjustments
- Oct 21, 43.06 m, +6 cm, Adjustments
- Oct 22, 42.97 m, −9 cm, Adjustments
- Oct 23, 42.87 m, −10 cm, Adjustments
- Oct 24, 42.76 m, −11 cm, Adjustments
- Oct 25, 42.64 m, −12 cm, Adjustments
- Oct 26, 42.52 m, −12 cm, Adjustments
- Oct 27, 42.40 m, −12 cm, Adjustments
- Oct 28, 42.28 m, −12 cm, Adjustments
- Oct 29, 42.27 m, −1 cm, Adjustments
- Oct 30, 42.27 m, +0 cm, Adjustments
- Oct 28, 0.06 in of rain
La Plata, October 30
- Level today
- 42.27 mAdjustments band
- Change since yesterday
- 0 cm
- To the Control line
- 1.77 mline at 40.50 m
- At this week's pace
- about 22 daysat this pace: November 21
Cidra: the other rationing reservoir
- Level today
- 400.59 mWatch band
- Change since yesterday
- 0 cm
- To the Adjustments line
- 0.36 mline at 400.23 m
- At this week's pace
- holding
Outlook
What the numbers say
Two of the three reservoirs are effectively flat this week, and that is the main story. Carraízo and Cidra are both moving by less than a centimeter a day, which is inside chart-reading noise. Cidra’s rain barely registered: more than 2 inches fell near it, yet its next-morning readings after the wet days were -1 cm and 0 cm. That suggests the ground is soaking up most of it rather than feeding the reservoir.
La Plata is the one to watch. It has kept falling at a steady pace, 8.2 cm a day against 7 cm a day the week before, and almost no rain reached its gauges (0.06 in). It has lost 428 cm since August 7. At this week’s pace it would reach the Control line, the lowest band, around November 21. That is arithmetic from the current rate, not a forecast, and a few wet days would change it.
What to watch
- Naranjito: whether AAA extends its Cedro Arriba plan (the calendar runs through October 31), changes the phase or ends it.
Drought map
The US Drought Monitor map dated October 27 puts 42 of 78 municipios in at least moderate drought (D1). The worst tier, D3 extreme drought, covers 9 of them, led by Guánica, Santa Isabel and Lajas. Compared with the map of October 20, no municipio changed category.
Where the map is worst
| Municipio | Category | Share of area (Share of the municipio's area at this category or worse) |
|---|---|---|
| Guánica | D3 extreme drought | 100% |
| Santa Isabel | D3 extreme drought | 95.7% |
| Lajas | D3 extreme drought | 90% |
| Guayanilla | D3 extreme drought | 51.9% |
| Cabo Rojo | D3 extreme drought | 40.6% |
| Juana Díaz | D3 extreme drought | 37.7% |
| Salinas | D3 extreme drought | 30.7% |
| Yauco | D3 extreme drought | 27.2% |
The 8 municipios with the largest share of their area at D3, of 9 in that tier.
USDM categories are a weekly expert synthesis of drought indicators, not a rainfall total; municipio shares are area-weighted. The full map, colored by category, is on the water page.
Lake levels
The gauge USGS runs at Carraízo read 40.74 meters at 5:45 AM. The gauge USGS runs at La Plata read 42.26 meters at 5:45 AM. The gauge USGS runs at Cidra read 400.59 meters at 5:45 AM.
The gauges report every quarter hour and their readings are provisional; the bands are measured on AAA’s 5:00 chart.
How we read the data
This is the 73rd Daily Water Watch (yesterday’s is here). The levels update every morning on the water page.
Levels: AAA’s daily reservoir chart, October 30. Rain: gauges USGS runs within 12 km of each reservoir. Day counts start August 7, when the metro rotation took effect. Straight-line dates are arithmetic, not forecasts. How we report.