Reservoir · California · United States · CDEC
PRS
76.9% full
Capacity
36.81 hm³
Volume stored
28 hm³
Coordinates
39.379°N, 120.137°W
Last updated
2026-07-06
Current fill
76.9%vs 7 days ago
-0.3%losing
vs 1 year ago
-1.0%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: 2026-07-06.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 39.379, -120.137 · Open in Google Maps
About PRS
As of July 6, 2026, PRS is filled to 76.9% of its total capacity, holding roughly 28 hm³ of water out of a maximum 37 hm³. At this level the reservoir is within its normal operating range.
Over the most recent week on record the fill level has held broadly steady (-0.3 pts), and it is 1.0 points below its level on the same date a year earlier.
Across the readings we hold for PRS — 1821 data points between July 10, 2021 and July 6, 2026 — the level has ranged from a low of 10.8% (January 24, 2025) to a high of 103.3% (July 12, 2023). 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 39.379°N, 120.137°W.
Key facts
- Current fill level
- 76.9%
- Water stored
- 28 hm³
- Total capacity
- 37 hm³
- 7-day change
- ▼ 0.3 pts
- Year-on-year
- ▼ 1.0 pts
- Primary use
- Multipurpose
- River basin
- California
- Operator
- CDEC
- Coordinates
- 39.379°N, 120.137°W
- Last updated
- July 6, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 6 Jul 2026 | 76.9% | 28 |
| 5 Jul 2026 | 77.2% | 28 |
| 4 Jul 2026 | 77.4% | 28 |
| 3 Jul 2026 | 77.6% | 29 |
| 2 Jul 2026 | 77.8% | 29 |
| 1 Jul 2026 | 78.0% | 29 |
| 30 Jun 2026 | 78.2% | 29 |
| 29 Jun 2026 | 78.4% | 29 |
| 28 Jun 2026 | 78.6% | 29 |
| 27 Jun 2026 | 78.8% | 29 |
| 26 Jun 2026 | 79.0% | 29 |
| 25 Jun 2026 | 79.2% | 29 |
Frequently asked questions
What is the current water level of PRS?
As of July 6, 2026, PRS is at 76.9% of its capacity, holding approximately 28 hm³ of water, according to CDEC (CA DWR) data.
Is PRS reservoir full?
No. As of July 6, 2026, PRS is within its normal operating range at 76.9% of its capacity, so it is not full.
Is the water level at PRS rising or falling?
The level at PRS has been broadly stable over the latest week on record (-0.3 points).
How much water can PRS hold?
PRS has a total capacity of 37 hm³.
Where is PRS reservoir located?
PRS is located in California, United States, within the California basin (coordinates 39.379°N, 120.137°W).
What is PRS used for?
PRS is used primarily for multiple purposes, and is managed by CDEC.