Guadalupe River Basin Reservoirs: Monitored Water Supply Reservoirs are 59.9% full on 2026-05-18
Historical Data
| Date | Percent Full |
Reservoir Storage (acre-ft) |
Conservation Storage (acre-ft) |
Conservation Capacity (acre-ft) |
|
|---|---|---|---|---|---|
| Today | 2026-05-18 | 59.9 | 245,548 | 245,477 | 409,821 |
| Yesterday | 2026-05-17 | 59.9 | 245,569 | 245,498 | 409,821 |
| 2 days ago | 2026-05-16 | 59.9 | 245,728 | 245,657 | 409,821 |
| 1 week ago | 2026-05-11 | 60.2 | 246,685 | 246,614 | 409,821 |
| 1 month ago | 2026-04-18 | 59.6 | 244,222 | 244,151 | 409,821 |
| 3 months ago | 2026-02-18 | 61.8 | 253,178 | 253,107 | 409,821 |
| 6 months ago | 2025-11-18 | 64.7 | 265,142 | 265,071 | 409,821 |
| 1 year ago | 2025-05-18 | 48.4 | 198,547 | 198,476 | 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 |
|
58.7 | 886.58 | -22.42 | 222,434 | 222,363 | 378,781 | 5,805 |
| Coleto Creek |
|
74.5 | 94.61 | -3.39 | 23,114 | 23,114 | 31,040 | 2,173 |