The following table summarizes the status of Arizona’s key surface water supplies for May.
| 2015 | 2014 | 2013 | 2012 | 2011 | |
|---|---|---|---|---|---|
| COLORADO RIVER SYSTEM | |||||
| Lake Powell (% full) | 45 | 40 | 47 | 64 | 53 |
| Lake Mead (% full) | 38 | 43 | 50 | 54 | 43 |
| Total Colorado System (% full) | 48 | 47 | 52 | 62 | 53 |
| Elevation (Lake Mead; feet msl) | 1,078 | 1,095 | 1,114 | 1,124 | 1,096 |
| First Shortage Declaration Elevation (Lake Mead; feet msl) | 1,075 | 1,075 | 1,075 | 1,075 | 1,075 |
| Elevation (Lake Powell; feet msl) | 3,591 | 3,576 | 3,597 | 3,636 | 3,612 |
| Upper Basin Water Year Precipitation to Date (% of average) | 79 | 98 | 80 | 77 | 125 |
| Upper Basin Current Snowpack (% of average) | 55 | 100 | 85 | 29 | 150 |
| SALT / VERDE RIVER SYSTEM | |||||
| Salt River Reservoirs (% full) | 57 | 58 | 62 | 71 | 94 |
| Verde River Reservoirs (% full) | 54 | 46 | 70 | 29 | 35 |
| Total Salt / Verde System (% full) | 57 | 56 | 63 | 65 | 87 |
| Salt/Verde Water Year Precipitation to Date (% of average) | 73 | 53 | 82 | 72 | 70 |
| Salt/Verde Current Snowpack Level (% of average) | N/A | N/A | N/A | N/A | N/A |
| CAP STORAGE | |||||
| Lake Pleasant (% full) | 89 | 84 | 78 | 93 | 95 |
| Roosevelt Lake Exchange Storage (AF)* | 31,000 | 31,000 | 55,000 | 66,671 | 66,671 |
*Approximate exchange volume remaining as of December 1, 2014
Data compiled from Central Arizona Water Conservation District, U.S. Bureau of Reclamation, and Salt River Project