Reservoir · California · United States · CDEC
DONNELLS
97.4% full
Capacity
79.56 hm³
Volume stored
78 hm³
Coordinates
38.329°N, 119.960°W
Last updated
2026-06-11
Current fill
97.4%vs 7 days ago
-0.3%losing
vs 1 year ago
+15.8%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: 2026-06-11.
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
As of June 11, 2026, DONNELLS is filled to 97.4% of its total capacity, holding roughly 78 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 (-0.3 pts), and it is 15.8 points above its level on the same date a year earlier.
Across the readings we hold for DONNELLS — 1825 data points between June 13, 2021 and June 11, 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
- 97.4%
- Water stored
- 78 hm³
- Total capacity
- 80 hm³
- 7-day change
- ▼ 0.3 pts
- Year-on-year
- ▲ 15.8 pts
- Primary use
- Multipurpose
- River basin
- California
- Operator
- CDEC
- Coordinates
- 38.329°N, 119.960°W
- Last updated
- June 11, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 11 Jun 2026 | 97.4% | 77 |
| 10 Jun 2026 | 97.7% | 78 |
| 9 Jun 2026 | 97.7% | 78 |
| 8 Jun 2026 | 98.1% | 78 |
| 7 Jun 2026 | 98.5% | 78 |
| 6 Jun 2026 | 97.8% | 78 |
| 5 Jun 2026 | 97.3% | 77 |
| 4 Jun 2026 | 97.2% | 77 |
| 3 Jun 2026 | 97.2% | 77 |
| 2 Jun 2026 | 97.4% | 77 |
| 1 Jun 2026 | 97.9% | 78 |
| 31 May 2026 | 98.7% | 79 |
Frequently asked questions
What is the current water level of DONNELLS?
As of June 11, 2026, DONNELLS is at 97.4% of its capacity, holding approximately 78 hm³ of water, according to CDEC (CA DWR) data.
Is DONNELLS reservoir full?
DONNELLS is essentially full, sitting at 97.4% of capacity as of June 11, 2026.
Is the water level at DONNELLS rising or falling?
The level at DONNELLS has been broadly stable over the latest week on record (-0.3 points).
How much water can DONNELLS hold?
DONNELLS has a total capacity of 80 hm³.
Where is DONNELLS reservoir located?
DONNELLS is located in California, United States, within the California basin (coordinates 38.329°N, 119.960°W).
What is DONNELLS used for?
DONNELLS is used primarily for multiple purposes, and is managed by CDEC.