Status of Arizona surface water supplies: October 2022

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

2022 2021 2020 2019 2018
COLORADO RIVER SYSTEM
Lake Powell (% full) 25 30 46 54 45
Lake Mead (% full) 28 34 39 39 38
Total Colorado System (% full) 33 38 48 53 47
Lake Mead Elevation (ft msl) 1,046 1,067 1,083 1,084 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 3,545 3,594 3,616 3,592
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) 91 155 24 15 239
Upper Basin Current Snowpack (% of average) NA NA NA NA NA
SALT / VERDE RIVER SYSTEM
Salt River Reservoirs (% full) 68 73 84 71 49
Verde River Reservoirs (% full) 34 52 52 54 33
Total Salt / Verde System (% full) 64 70 80 69 46
Salt/Verde Water Year Precipitation to Date (% of average) NA 290 8 19 215
Salt/Verde Current Snowpack Level (% of average) NA NA NA NA NA
CAP STORAGE
Lake Pleasant (% full) 58 58 57 65 44

Data compiled from Central Arizona Water Conservation District, U.S. Bureau of Reclamation, and Salt River Project