October 17, 2023
Category: AZ Surface Water Status
The following table summarizes the status of Arizona’s key surface water supplies for the month of October.
| 2023 | 2022 | 2021 | 2020 | 2019 | |
|---|---|---|---|---|---|
| COLORADO RIVER SYSTEM | |||||
| Lake Powell (% full) | 38 | 25 | 30 | 46 | 54 |
| Lake Mead (% full) | 34 | 28 | 34 | 39 | 39 |
| Total Colorado System (% full) | 43 | 33 | 38 | 48 | 53 |
| Lake Mead Elevation (ft msl) | 1,066 | 1,046 | 1,067 | 1,083 | 1,084 |
| 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 | N/A |
| Tier 3 Shortage Declaration Elevation (ft msl) | 1,025 | 1,025 | 1,025 | 1,025 | 1,025 |
| Lake Powell Elevation (ft msl) | 3,573 | 3,530 | 3,545 | 3,594 | 3,616 |
| 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) | 131 | 91 | 155 | 24 | 15 |
| Upper Basin Current Snowpack (% of average) | N/A | N/A | N/A | N/A | N/A |
| SALT / VERDE RIVER SYSTEM | |||||
| Salt River Reservoirs (% full) | 87 | 87 | 73 | 84 | 71 |
| Verde River Reservoirs (% full) | 60 | 60 | 52 | 52 | 54 |
| Total Salt / Verde System (% full) | 83 | 84 | 70 | 80 | 69 |
| Salt/Verde Water Year Precipitation to Date (% of average) | 54 | N/A | 290 | 8 | 19 |
| Salt/Verde Current Snowpack Level (% of average) | N/A | N/A | N/A | N/A | N/A |
| CAP STORAGE | |||||
| Lake Pleasant (% full) | 67 | 59 | 58 | 57 | 65 |
Data compiled from Central Arizona Water Conservation District, U.S. Bureau of Reclamation, and Salt River Project
