Guadalupe River Basin Reservoirs: Monitored Water Supply Reservoirs are 97.7% full on 2026-09-10
Historical Data
| Date | Percent Full |
Reservoir Storage (acre-ft) |
Conservation Storage (acre-ft) |
Conservation Capacity (acre-ft) |
|
|---|---|---|---|---|---|
| Today | 2026-09-10 | 97.7 | 400,456 | 400,385 | 409,821 |
| Yesterday | 2026-09-09 | 97.8 | 400,806 | 400,735 | 409,821 |
| 2 days ago | 2026-09-08 | 97.9 | 401,260 | 401,189 | 409,821 |
| 1 week ago | 2026-09-03 | 98.1 | 403,232 | 402,089 | 409,821 |
| 1 month ago | 2026-08-10 | 98.5 | 412,469 | 403,518 | 409,821 |
| 3 months ago | 2026-06-10 | 60.8 | 249,078 | 249,007 | 409,821 |
| 6 months ago | 2026-03-10 | 61.2 | 250,823 | 250,752 | 409,821 |
| 1 year ago | 2025-09-10 | 69.3 | 283,969 | 283,898 | 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 |
|
99.7 | 908.84 | -0.16 | 377,536 | 377,465 | 378,781 | 8,218 |
| Coleto Creek |
|
73.8 | 94.52 | -3.48 | 22,920 | 22,920 | 31,040 | 2,160 |