Guadalupe River Basin Reservoirs: Monitored Water Supply Reservoirs are 97.4% full on 2026-09-13
Historical Data
| Date | Percent Full |
Reservoir Storage (acre-ft) |
Conservation Storage (acre-ft) |
Conservation Capacity (acre-ft) |
|
|---|---|---|---|---|---|
| Today | 2026-09-13 | 97.4 | 399,216 | 399,145 | 409,821 |
| Yesterday | 2026-09-12 | 97.5 | 399,587 | 399,516 | 409,821 |
| 2 days ago | 2026-09-11 | 97.6 | 399,980 | 399,909 | 409,821 |
| 1 week ago | 2026-09-06 | 98.1 | 402,027 | 401,873 | 409,821 |
| 1 month ago | 2026-08-13 | 98.4 | 411,009 | 403,311 | 409,821 |
| 3 months ago | 2026-06-13 | 60.6 | 248,521 | 248,450 | 409,821 |
| 6 months ago | 2026-03-13 | 61.1 | 250,486 | 250,415 | 409,821 |
| 1 year ago | 2025-09-13 | 69.1 | 283,154 | 283,083 | 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 |
|
99.4 | 908.71 | -0.29 | 376,469 | 376,398 | 378,781 | 8,203 |
| Coleto Creek |
|
73.3 | 94.44 | -3.56 | 22,747 | 22,747 | 31,040 | 2,148 |