Guadalupe River Basin Reservoirs: Monitored Water Supply Reservoirs are 96.6% full on 2026-09-21
Historical Data
| Date | Percent Full |
Reservoir Storage (acre-ft) |
Conservation Storage (acre-ft) |
Conservation Capacity (acre-ft) |
|
|---|---|---|---|---|---|
| Most recent | 2026-09-21 | 96.6 | 395,766 | 395,695 | 409,821 |
| 1 day prior | 2026-09-20 | 96.7 | 396,217 | 396,146 | 409,821 |
| 2 days prior | 2026-09-19 | 96.8 | 396,670 | 396,599 | 409,821 |
| 1 week prior | 2026-09-14 | 97.3 | 398,659 | 398,588 | 409,821 |
| 1 month prior | 2026-08-21 | 98.3 | 407,167 | 402,714 | 409,821 |
| 3 months prior | 2026-06-21 | 63.4 | 259,746 | 259,675 | 409,821 |
| 6 months prior | 2026-03-21 | 60.7 | 248,761 | 248,690 | 409,821 |
| 1 year prior | 2025-09-21 | 68.5 | 280,919 | 280,848 | 409,821 |
*
Percent Full is based on Conservation Storage and Conservation Capacity and doesn't account for storage in flood pool.
Area Map
Reservoir Storage
| Reservoir | Type | Percent Full |
Water Level (ft) |
Height Above Conservation Pool (ft) |
Reservoir Storage (acre-ft) |
Conservation Storage (acre-ft) |
Conservation Capacity (acre-ft) |
Surface Area (acres) |
|---|---|---|---|---|---|---|---|---|
| Canyon |
|
98.5 | 908.32 | -0.68 | 373,278 | 373,207 | 378,781 | 8,158 |
| Coleto Creek |
|
72.4 | 94.32 | -3.68 | 22,488 | 22,488 | 31,040 | 2,131 |