Reservoir · California · United States · CDEC
Donnells Reservoir
86.9% full
Capacity
79.56 hm³
Volume stored
69 hm³
Coordinates
38.329°N, 119.960°W
Last updated
2026-08-02
Current fill
86.9%vs 7 days ago
-1.0%losing
vs 1 year ago
-8.2%year-over-year
7-day trend
→stable
Data source: CDEC — California Dept of Water Resources — daily reservoir storage volume. Capacity is the design (normal full-pool) capacity from the US National Inventory of Dams (NID); fill % = current volume ÷ design capacity. Last reading: 2026-08-02.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 38.329, -119.960 · Open in Google Maps
About Donnells Reservoir
As of August 2, 2026, Donnells Reservoir is filled to 86.9% of its total capacity, holding roughly 69 hm³ of water out of a maximum 80 hm³. At this level the reservoir is high.
Over the most recent week on record the fill level has held broadly steady (-1.0 pts), and it is 8.2 points below its level on the same date a year earlier.
Across the readings we hold for Donnells Reservoir — 1824 data points between August 5, 2021 and August 2, 2026 — the level has ranged from a low of 13.8% (March 6, 2024) to a high of 105.0% (May 3, 2024). On average the reservoir is fullest around June and at its lowest around February.
It is operated by CDEC primarily for multiple purposes. It lies within the California basin at 38.329°N, 119.960°W.
Key facts
- Current fill level
- 86.9%
- Water stored
- 69 hm³
- Total capacity
- 80 hm³
- 7-day change
- ▼ 1.0 pts
- Year-on-year
- ▼ 8.2 pts
- Primary use
- Multipurpose
- River basin
- California
- Operator
- CDEC
- Coordinates
- 38.329°N, 119.960°W
- Last updated
- August 2, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 2 Aug 2026 | 86.9% | 69 |
| 1 Aug 2026 | 87.1% | 69 |
| 31 Jul 2026 | 87.2% | 69 |
| 30 Jul 2026 | 87.5% | 70 |
| 29 Jul 2026 | 87.6% | 70 |
| 28 Jul 2026 | 87.8% | 70 |
| 27 Jul 2026 | 87.8% | 70 |
| 26 Jul 2026 | 87.9% | 70 |
| 25 Jul 2026 | 88.0% | 70 |
| 24 Jul 2026 | 88.0% | 70 |
| 23 Jul 2026 | 88.3% | 70 |
| 22 Jul 2026 | 88.4% | 70 |
Frequently asked questions
What is the current water level of Donnells Reservoir?
As of August 2, 2026, Donnells Reservoir is at 86.9% of its capacity, holding approximately 69 hm³ of water, according to CDEC (CA DWR) data.
Is Donnells Reservoir reservoir full?
No. As of August 2, 2026, Donnells Reservoir is high at 86.9% of its capacity, so it is not full.
Is the water level at Donnells Reservoir rising or falling?
The level at Donnells Reservoir has been broadly stable over the latest week on record (-1.0 points).
How much water can Donnells Reservoir hold?
Donnells Reservoir has a total capacity of 80 hm³.
Where is Donnells Reservoir reservoir located?
Donnells Reservoir is located in California, United States, within the California basin (coordinates 38.329°N, 119.960°W).
What is Donnells Reservoir used for?
Donnells Reservoir is used primarily for multiple purposes, and is managed by CDEC.