September 11, 2025
Category: AZ Surface Water Status
The following table summarizes the status of Arizona’s key surface water supplies for the month of September.
| 2025 | 2024 | 2023 | 2022 | 2021 | |
|---|---|---|---|---|---|
| COLORADO RIVER SYSTEM | |||||
| Lake Powell (% full) | 30 | 40 | 38 | 25 | 31 |
| Lake Mead (% full) | 31 | 33 | 34 | 28 | 35 |
| Total Colorado System (% full) | 40 | 43 | 44 | 34 | 39 |
| Lake Mead Elevation (ft msl) | 1,056 | 1,064 | 1,066 | 1,044 | 1,068 |
| Tier 1 Shortage Declaration Elevation (ft msl) | 1,075 | 1,075 | 1,075 | 1,075 | 1,075 |
| Tier 2a Shortage Declaration Elevation (ft msl) | 1,050 | 1,050 | 1,050 | 1,050 | 1,050 |
| Tier 2b Shortage Declaration Elevation (ft msl) | 1,045 | 1,045 | 1,045 | 1,045 | 1,045 |
| Tier 3 Shortage Declaration Elevation (ft msl) | 1,025 | 1,025 | 1,025 | 1,025 | 1,025 |
| Lake Powell Elevation (ft msl) | 3,547 | 3,579 | 3,574 | 3,530 | 3,548 |
| Minimum Power Generation Elevation (ft msl) | 3,490 | 3,490 | 3,490 | 3,490 | 3,490 |
| Upper Basin Water Year Precipitation to Date (% of average) | 82 | 101 | 115 | 99 | 82 |
| Upper Basin Current Snowpack (% of average) | N/A | N/A | N/A | N/A | N/A |
| SALT / VERDE RIVER SYSTEM | |||||
| Salt River Reservoirs (% full) | 55 | 80 | 90 | 69 | 74 |
| Verde River Reservoirs (% full) | 46 | 62 | 66 | 33 | 51 |
| Total Salt / Verde System (% full) | 54 | 78 | 87 | 65 | 71 |
| Salt/Verde Water Year Precipitation to Date (% of average) | 56 | 106 | 133 | 94 | 78 |
| Salt/Verde Current Snowpack Level (% of average) | N/A | N/A | N/A | N/A | N/A |
| CAP STORAGE | |||||
| Lake Pleasant (% full) | 53 | 61 | 67 | 59 | 56 |
Data compiled from Central Arizona Water Conservation District, U.S. Bureau of Reclamation, and Salt River Project
