Reservoir · California · United States · CDEC
SLAB CREEK
60.1% full
Capacity
19.74 hm³
Volume stored
12 hm³
Vs month average
90% of normal
Coordinates
38.773°N, 120.699°W
Last updated
2026-10-14
Current fill
60.1%vs 7 days ago
-7.4%losing
vs 1 year ago
-5.1%year-over-year
7-day trend
↓falling
Drought context
Storage vs October average
90%of normal
60.1% full on 2026-10-14, against an average of 66.5% for October across 6 years of readings (-6.4 points).
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: 2026-10-14.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 38.773, -120.699 · Open in Google Maps
About SLAB CREEK
As of October 14, 2026, SLAB CREEK is filled to 60.1% of its total capacity, holding roughly 12 hm³ of water out of a maximum 20 hm³. At this level the reservoir is within its normal operating range.
Over the most recent week on record the fill level has fallen by 7.4 percentage points, and it is 5.1 points below its level on the same date a year earlier.
Across the readings we hold for SLAB CREEK — 1824 data points between October 16, 2021 and October 14, 2026 — the level has ranged from a low of 37.6% (February 3, 2025) to a high of 88.6% (December 31, 2022). On average the reservoir is fullest around May and at its lowest around July.
It is operated by CDEC primarily for multiple purposes. It lies within the California basin at 38.773°N, 120.699°W.
Key facts
- Current fill level
- 60.1%
- Water stored
- 12 hm³
- Total capacity
- 20 hm³
- 7-day change
- ▼ 7.4 pts
- Year-on-year
- ▼ 5.1 pts
- Primary use
- Multipurpose
- River basin
- California
- Operator
- CDEC
- Coordinates
- 38.773°N, 120.699°W
- Last updated
- October 14, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 14 Oct 2026 | 60.1% | 12 |
| 13 Oct 2026 | 59.1% | 12 |
| 12 Oct 2026 | 62.9% | 12 |
| 11 Oct 2026 | 63.4% | 13 |
| 10 Oct 2026 | 64.1% | 13 |
| 9 Oct 2026 | 65.2% | 13 |
| 8 Oct 2026 | 66.5% | 13 |
| 7 Oct 2026 | 67.5% | 13 |
| 6 Oct 2026 | 66.5% | 13 |
| 5 Oct 2026 | 67.6% | 13 |
| 4 Oct 2026 | 66.1% | 13 |
| 3 Oct 2026 | 64.9% | 13 |