San Angelo Area Reservoirs: Monitored Water Supply Reservoirs are 40.7% full on 2025-08-11
Historical Data
| Date | Percent Full |
Reservoir Storage (acre-ft) |
Conservation Storage (acre-ft) |
Conservation Capacity (acre-ft) |
|
|---|---|---|---|---|---|
| Today | 2025-08-11 | 40.7 | 355,161 | 350,918 | 862,151 |
| Yesterday | 2025-08-10 | 40.7 | 355,253 | 351,010 | 862,151 |
| 2 days ago | 2025-08-09 | 40.8 | 355,899 | 351,656 | 862,151 |
| 1 week ago | 2025-08-04 | 41.2 | 359,112 | 354,869 | 862,151 |
| 1 month ago | 2025-07-11 | 41.7 | 363,467 | 359,224 | 862,151 |
| 3 months ago | 2025-05-11 | 31.5 | 275,617 | 271,374 | 862,151 |
| 6 months ago | 2025-02-11 | 29.5 | 258,302 | 254,059 | 862,151 |
| 1 year ago | 2024-08-11 | 20.1 | 177,343 | 173,100 | 862,151 |
*
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) |
|---|---|---|---|---|---|---|---|---|
| Nasworthy |
|
85.2 | 1,871.70 | -1.01 | 8,689 | 8,196 | 9,615 | 1,232 |
| O C Fisher |
|
17.8 | 1,878.30 | -29.70 | 20,584 | 20,583 | 115,742 | 1,632 |
| O H Ivie |
|
53.0 | 1,534.94 | -16.56 | 293,789 | 293,789 | 554,340 | - n.a. - |
| Twin Buttes |
|
15.5 | 1,908.25 | -31.95 | 32,099 | 28,350 | 182,454 | 2,076 |