Status of Arizona surface water supplies: December 2017

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

2017 2016 2015 2014 2013
COLORADO RIVER SYSTEM
Lake Powell (% full) 59 50 51 49 44
Lake Mead (% full) 39 38 38 39 47
Total Colorado System (% full) 54 49 50 50 50
Elevation (Lake Mead; ft msl) 1,081 1,077 1,078 1,084 1,107
First Shortage Declaration Elevation (ft msl)* 1,075 1,075 1,075 1,075 1,075
Elevation (Lake Powell; ft msl) 3,625 3,604 3,605 3,602 3,588
Upper Basin Water Year Precipitation to Date (% of average) 57 86 98 83 114
Upper Basin Current Snowpack (% of average) 58 93 95 95 136
SALT / VERDE RIVER SYSTEM
Salt River Reservoirs (% full) 64 46 51 50 55
Verde River Reservoirs (% full) 40 32 43 39 50
Total Salt / Verde System (% full) 61 44 50 49 54
Salt/Verde Water Year Precipitation to Date (% of average) 2 72 160 40 112
Salt/Verde Current Snowpack Level (% of average) 6 54 102 21 0
CAP STORAGE
Lake Pleasant (% full) 73 68 69 69 63
Roosevelt Lake Exchange Storage (AF)** <500 <500 16,000 31,000 31,000

*January 1 projected elevation of Lake Mead

**Approximate exchange volume remaining as of September 1, 2017

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