Guadalupe River Basin Reservoirs: Monitored Water Supply Reservoirs are 98.3% full on 2026-08-19
Historical Data
| Date | Percent Full |
Reservoir Storage (acre-ft) |
Conservation Storage (acre-ft) |
Conservation Capacity (acre-ft) |
|
|---|---|---|---|---|---|
| Today | 2026-08-19 | 98.3 | 408,074 | 402,874 | 409,821 |
| Yesterday | 2026-08-18 | 98.3 | 408,453 | 402,920 | 409,821 |
| 2 days ago | 2026-08-17 | 98.3 | 408,854 | 402,989 | 409,821 |
| 1 week ago | 2026-08-12 | 98.4 | 411,556 | 403,357 | 409,821 |
| 1 month ago | 2026-07-19 | 97.4 | 399,082 | 399,011 | 409,821 |
| 3 months ago | 2026-05-19 | 59.9 | 245,503 | 245,432 | 409,821 |
| 6 months ago | 2026-02-19 | 61.8 | 253,200 | 253,129 | 409,821 |
| 1 year ago | 2025-08-19 | 70.1 | 287,373 | 287,302 | 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 | 909.62 | 0.62 | 383,981 | 378,781 | 378,781 | - n.a. - |
| Coleto Creek |
|
77.6 | 95.06 | -2.94 | 24,093 | 24,093 | 31,040 | 2,238 |