Guadalupe River Basin Reservoirs: Monitored Water Supply Reservoirs are 98.6% full on 2026-07-31
Historical Data
| Date | Percent Full |
Reservoir Storage (acre-ft) |
Conservation Storage (acre-ft) |
Conservation Capacity (acre-ft) |
|
|---|---|---|---|---|---|
| Today | 2026-07-31 | 98.6 | 413,034 | 404,000 | 409,821 |
| Yesterday | 2026-07-30 | 98.6 | 412,928 | 403,977 | 409,821 |
| 2 days ago | 2026-07-29 | 98.6 | 412,524 | 403,908 | 409,821 |
| 1 week ago | 2026-07-24 | 98.8 | 410,046 | 405,012 | 409,821 |
| 1 month ago | 2026-06-30 | 63.1 | 258,701 | 258,630 | 409,821 |
| 3 months ago | 2026-04-30 | 60.1 | 246,208 | 246,137 | 409,821 |
| 6 months ago | 2026-01-31 | 62.0 | 254,270 | 254,199 | 409,821 |
| 1 year ago | 2025-07-31 | 70.7 | 289,665 | 289,594 | 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 |
|
100.0 | 910.08 | 1.08 | 387,815 | 378,781 | 378,781 | - n.a. - |
| Coleto Creek |
|
81.2 | 95.55 | -2.45 | 25,219 | 25,219 | 31,040 | 2,306 |