September 15, 2022
Category: AZ Surface Water Status
The following table summarizes the status of Arizona’s key surface water supplies for the month of September.
| 2022 | 2021 | 2020 | 2019 | 2018 | |
|---|---|---|---|---|---|
| COLORADO RIVER SYSTEM | |||||
| Lake Powell (% full) | 25 | 31 | 48 | 56 | 74 |
| Lake Mead (% full) | 28 | 35 | 40 | 38 | 38 |
| Total Colorado System (% full) | 34 | 39 | 50 | 54 | 48 |
| Lake Mead Elevation (ft msl) | 1,044 | 1,068 | 1,084 | 1,083 | 1,079 |
| 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 | NA | NA |
| Lake Powell Elevation (ft msl) | 3,530 | 3,548 | 3,600 | 3,617 | 3,596 |
| 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) | 99 | 82 | 80 | 114 | 70 |
| Upper Basin Current Snowpack (% of average) | NA | NA | NA | NA | NA |
| SALT / VERDE RIVER SYSTEM | |||||
| Salt River Reservoirs (% full) | 69 | 74 | 88 | 72 | 50 |
| Verde River Reservoirs (% full) | 33 | 51 | 58 | 54 | 30 |
| Total Salt / Verde System (% full) | 65 | 71 | 84 | 70 | 48 |
| Salt/Verde Water Year Precipitation to Date (% of average) | 94 | 78 | 86 | 102 | 55 |
| Salt/Verde Current Snowpack Level (% of average) | NA | NA | NA | NA | NA |
| CAP STORAGE | |||||
| Lake Pleasant (% full) | 59 | 56 | 51 | 60 | 31* |
*September 2018 Lake Pleasant storage estimated based on lake level
Data compiled from Central Arizona Water Conservation District, U.S. Bureau of Reclamation, and Salt River Project
Data compiled from Central Arizona Water Conservation District, U.S. Bureau of Reclamation, and Salt River Project
