Guadalupe River Basin Reservoirs: Monitored Water Supply Reservoirs are 98.3% full on 2026-08-21
Historical Data
| Date | Percent Full |
Reservoir Storage (acre-ft) |
Conservation Storage (acre-ft) |
Conservation Capacity (acre-ft) |
|
|---|---|---|---|---|---|
| Today | 2026-08-21 | 98.3 | 407,189 | 402,736 | 409,821 |
| Yesterday | 2026-08-20 | 98.3 | 407,401 | 402,782 | 409,821 |
| 2 days ago | 2026-08-19 | 98.3 | 407,885 | 402,851 | 409,821 |
| 1 week ago | 2026-08-14 | 98.4 | 410,440 | 403,242 | 409,821 |
| 1 month ago | 2026-07-21 | 98.7 | 404,999 | 404,598 | 409,821 |
| 3 months ago | 2026-05-21 | 60.1 | 246,246 | 246,175 | 409,821 |
| 6 months ago | 2026-02-21 | 61.7 | 253,028 | 252,957 | 409,821 |
| 1 year ago | 2025-08-21 | 70.0 | 286,984 | 286,913 | 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 | 909.53 | 0.53 | 383,234 | 378,781 | 378,781 | - n.a. - |
| Coleto Creek |
|
77.2 | 95.00 | -3.00 | 23,955 | 23,955 | 31,040 | 2,230 |