General Edgar Jadwin Reservoir Water Level

As of 2025-05-07, General Edgar Jadwin Reservoir sits at 996.94 ft, which is high for this time of year.Over the past 30 days the level has risen 1.36 ft.

The most recent reading is 996.94 ft (2025-05-07), sourced from the U.S. Geological Survey. Readings on this page refresh automatically as the agency publishes new data.

The highest level in our records is 1007.13 ft on 2021-10-27. The lowest is -18.58 ft on 1988-10-21. Our record covers about 39.1 years of readings.

Compared with every May in our records, the current level is higher than 100% of them — high for this time of year. Seasonal comparison matters more than the raw number, because most reservoirs draw down predictably through late summer and refill over winter and spring.

Reservoir levels move for four main reasons: rainfall and runoff into the basin, releases through the dam for downstream water supply, power generation or flood control, evaporation during hot months, and seasonal drawdown schedules set by the operating agency. General Edgar Jadwin Reservoir has risen 1.36 ft over the past 30 days. For the operational reason on any given week, check the U.S. Geological Survey directly.

The level is -2.68 ft compared with this date last year (996.94 ft today). The full-history chart above covers 39.1 years, with a record high of 1007.13 ft and a record low of -18.58 ft.