October 12, 2022

The following table summarizes the status of Arizona’s key surface water supplies for the month of October.

  2022 2021 2020 2019 2019
COLORADO RIVER SYSTEM          
Lake Powell (% full) 25 29 45 54 44
Lake Mead (% full) 28 34 39 39 38
Total Colorado System (% full) 33 38 47 52 46
Lake Mead Elevation (ft msl) 1,045 1,066 1,082 1,083 1,080
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
Lake Powell Elevation (ft msl) 3,530 3,543 3,591 3,613 3,588
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) 107 115 51 66 119
Upper Basin Current Snowpack (% of average) 193 83 87 N/A N/A
SALT / VERDE RIVER SYSTEM          
Salt River Reservoirs (% full) 67 72 84 70 49
Verde River Reservoirs (% full) 36 41 37 37 29
Total Salt / Verde System (% full) 63 68 78 66 47
Salt / Verde Water Year Precipitation to Date (% average) 261 99 50 14 146
Salt / Verde Current Snowpack Level (% of average) N/A N/A N/A N/A N/A
CAP STORAGE          
Lake Pleasant (% full) 59 68 65 72 55*

*November 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

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