The following table summarizes the status of Arizona’s key surface water supplies for the month of May.
| 2017 | 2016 | 2015 | 2014 | 2013 | |
|---|---|---|---|---|---|
| COLORADO RIVER SYSTEM | |||||
| Lake Powell (% full) | 51 | 45 | 45 | 40 | 47 |
| Lake Mead (% full) | 40 | 37 | 38 | 43 | 50 |
| Total Colorado System (% full) | 51 | 48 | 48 | 47 | 52 |
| Elevation (Lake Mead; ft msl) | 1,084 | 1,076 | 1,078 | 1,095 | 1,114 |
| First Shortage Declaration Elevation (ft msl) | 1,075 | 1,075 | 1,075 | 1,075 | 1,075 |
| Elevation (Lake Powell; ft msl) | 3,605 | 3,592 | 3,591 | 3,577 | 3,597 |
| Upper Basin Water Year Precipitation to Date (% of average) | 117 | 97 | 79 | 98 | 80 |
| Upper Basin Current Snowpack (% of average) | 110 | 103 | 55 | 100 | 85 |
| SALT / VERDE RIVER SYSTEM | |||||
| Salt River Reservoirs (% full) | 75 | 59 | 57 | 58 | 62 |
| Verde River Reservoirs (% full) | 76 | 44 | 54 | 46 | 70 |
| Total Salt / Verde System (% full) | 75 | 57 | 57 | 56 | 63 |
| Salt/Verde Water Year Precipitation to Date (% of average) | 116 | 82 | 73 | 53 | 82 |
| Salt/Verde Current Snowpack Level (% of average) | N/A | N/A | N/A | N/A | N/A |
| CAP STORAGE | |||||
| Lake Pleasant (% full) | 85 | 93 | 89 | 84 | 78 |
| Roosevelt Lake Exchange Storage (AF)* | 441 | 16,000 | 31,000 | 31,000 | 55,000 |
*Approximate exchange volume remaining as of May 2017
Data compiled from Central Arizona Water Conservation District, U.S. Bureau of Reclamation, and Salt River Project