Reservoirs
Near normalNew Don Pedro Reservoir water level
Live reservoir storage and water level in Tuolumne-San Joaquin basin, California
Data through Jul 23, 2026 · source last checked Jul 26, 2026 · page revised Jul 26, 2026
Cite
- Storage
About this data
- Source
- US Bureau of Reclamation RISE; California reservoirs via CA DWR CDEC
- Series
- End-of-day reservoir storage
- Geography
- New Don Pedro Reservoir water level
- Unit
- acre-feet
- Calculation
- Daily reading
- Last observation
- Jul 23, 2026
- Update frequency
- Daily
Now 1.76M af, 2% below the 5-yr median, 87% of capacity.
New Don Pedro storage fell to 1.76M af, down 1.8% on the week. Month over month the reservoir declined 7.0%, running 2% below its 5-year median.
| Period | Current | Prior | Change |
|---|---|---|---|
| Week over week | 1.76M af | 1.79M af | -1.8% |
| Month over month | 1.76M af | 1.89M af | -7.0% |
| Year over year | 1.76M af | 1.79M af | -1.8% |
| vs 5-yr median | 1.76M af | 1.79M af | -1.6% |
About New Don Pedro Reservoir
New Don Pedro Dam backs up the Tuolumne River in the Sierra foothills, owned and operated by the Turlock and Modesto Irrigation Districts rather than a federal agency. At roughly two million acre-feet it counts among California's larger reservoirs, run for irrigation, hydropower, and flood control. The districts coordinate its winter flood space with the Army Corps of Engineers.
Total capacity is 2.03M af, over the past five years storage has ranged from 968,734 af to 1.97M af.