Status of Arizona surface water supplies: March 2018

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

2018 2017 2016 2015 2014
COLORADO RIVER SYSTEM
Lake Powell (% full) 54  46 34 43 49
Lake Mead (% full) 41 41 40 41 48
Total Colorado System (% full) 53 50 49 49 48
Elevation (Lake Mead; ft msl) 1,088 1,089 1,084 1,089 1,108
First Shortage Declaration Elevation (ft msl) 1,075 1,075 1,075 1,075 1,075
Elevation (Lake Powell; ft msl) 3,613 3,594 3,594 3,592 3,576
Upper Basin Water Year Precipitation to Date (% of average) 68 123 94 81 106
Upper Basin Current Snowpack (% of average) 73 128 96 84 115
SALT / VERDE RIVER SYSTEM
Salt River Reservoirs (% full) 65 72 58 56 57
Verde River Reservoirs (% full) 30 97 51 64 48
Total Salt / Verde System (% full) 61 75 57 57 56
Salt/Verde Water Year Precipitation to Date (% of average) 32 125 99 75 60
Salt/Verde Current Snowpack Level (% of average) 7 28 22 33 16
CAP STORAGE
Lake Pleasant (% full) 87 94 91 94 79
Roosevelt Lake Exchange Storage (AF) <200* 16,000 31,000 31,000 55,000

*Approximate exchange volume remaining as of December 1, 2017

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