Guadalupe River Basin Reservoirs: Monitored Water Supply Reservoirs are 68.8% full on 2025-09-18
Historical Data
| Date | Percent Full |
Reservoir Storage (acre-ft) |
Conservation Storage (acre-ft) |
Conservation Capacity (acre-ft) |
|
|---|---|---|---|---|---|
| Today | 2025-09-18 | 68.8 | 281,860 | 281,789 | 409,821 |
| Yesterday | 2025-09-17 | 68.8 | 282,036 | 281,965 | 409,821 |
| 2 days ago | 2025-09-16 | 68.9 | 282,386 | 282,315 | 409,821 |
| 1 week ago | 2025-09-11 | 69.2 | 283,744 | 283,673 | 409,821 |
| 1 month ago | 2025-08-18 | 70.2 | 287,572 | 287,501 | 409,821 |
| 3 months ago | 2025-06-18 | 50.9 | 209,515 | 208,557 | 409,821 |
| 6 months ago | 2025-03-18 | 50.6 | 207,345 | 207,274 | 409,821 |
| 1 year ago | 2024-09-18 | 58.0 | 237,861 | 237,790 | 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 |
|
67.2 | 891.86 | -17.14 | 254,483 | 254,412 | 378,781 | 6,337 |
| Coleto Creek |
|
88.2 | 96.46 | -1.54 | 27,377 | 27,377 | 31,040 | 2,436 |