Guadalupe River Basin Reservoirs: Monitored Water Supply Reservoirs are 98.0% full on 2026-09-07
Historical Data
| Date | Percent Full |
Reservoir Storage (acre-ft) |
Conservation Storage (acre-ft) |
Conservation Capacity (acre-ft) |
|
|---|---|---|---|---|---|
| Today | 2026-09-07 | 98.0 | 401,841 | 401,770 | 409,821 |
| Yesterday | 2026-09-06 | 98.1 | 402,027 | 401,873 | 409,821 |
| 2 days ago | 2026-09-05 | 98.1 | 402,421 | 401,938 | 409,821 |
| 1 week ago | 2026-08-31 | 98.1 | 404,331 | 402,197 | 409,821 |
| 1 month ago | 2026-08-07 | 98.5 | 413,420 | 403,633 | 409,821 |
| 3 months ago | 2026-06-07 | 60.8 | 249,426 | 249,355 | 409,821 |
| 6 months ago | 2026-03-07 | 61.2 | 250,918 | 250,847 | 409,821 |
| 1 year ago | 2025-09-07 | 69.3 | 283,993 | 283,922 | 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 | 908.99 | -0.01 | 378,770 | 378,699 | 378,781 | 8,300 |
| Coleto Creek |
|
74.3 | 94.59 | -3.41 | 23,071 | 23,071 | 31,040 | 2,170 |