LAJEADO
Tocantins · TOCANTINS
Capacity
4,940 hm³
Coordinates
-9.756°N, 48.374°W
Operator
ONS
40.5% full
Current fill
40.5%vs 7 days ago
+2.5%gaining
vs 1 year ago
N/A7-day trend
↑rising
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Total capacity | 4,940 hm³ |
| Usable capacity | 482.37 hm³ |
| Primary use | Hydroelectric |
| Operator | ONS |
| River | TOCANTINS |
| Province | Tocantins |
| River basin | TOCANTINS |
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. -9.756, -48.374 · Open in Google Maps
About LAJEADO
As of October 7, 2026, LAJEADO is filled to 40.5% of its total capacity, holding roughly 195 hm³ of water out of a maximum 4,940 hm³. At this level the reservoir is within its normal operating range. Of that total, about 482 hm³ is usable (live) storage.
Over the most recent week on record the fill level has risen by 2.5 percentage points.
Across the readings we hold for LAJEADO — 52 data points between October 24, 2025 and October 7, 2026 — the level has ranged from a low of 19.5% (October 31, 2025) to a high of 102.6% (March 13, 2026). On average the reservoir is fullest around March and at its lowest around November.
It is operated by ONS primarily for hydroelectric power. It lies within the TOCANTINS basin at 9.756°S, 48.374°W.
Key facts
- Current fill level
- 40.5%
- Water stored
- 195 hm³
- Total capacity
- 4,940 hm³
- Usable capacity
- 482 hm³
- 7-day change
- ▲ 2.5 pts
- Primary use
- Hydroelectric power
- River
- TOCANTINS
- River basin
- TOCANTINS
- Operator
- ONS
- Coordinates
- 9.756°S, 48.374°W
- Last updated
- October 7, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 7 Oct 2026 | 40.5% | 195 |
| 2 Oct 2026 | 38.0% | 183 |
| 25 Sep 2026 | 23.2% | 112 |
| 18 Sep 2026 | 36.8% | 178 |
| 11 Sep 2026 | 33.1% | 160 |
| 4 Sep 2026 | 34.3% | 166 |
| 28 Aug 2026 | 25.7% | 124 |
| 21 Aug 2026 | 24.4% | 118 |
| 14 Aug 2026 | 35.5% | 172 |
| 7 Aug 2026 | 34.3% | 166 |
| 31 Jul 2026 | 29.4% | 142 |
| 24 Jul 2026 | 31.8% | 154 |