Reservoir · Kansas · United States · USACE CWMS
Pomona Dam & Reservoir
78.3% full
Capacity
87.08 hm³
Volume stored
68 hm³
Coordinates
38.651°N, 95.558°W
Last updated
2026-09-11
Current fill
78.3%vs 7 days ago
-0.3%losing
vs 1 year ago
N/A7-day trend
→stable
Data source: USACE CWMS — US Army Corps of Engineers — 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: 2026-09-11.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 38.651, -95.558 · Open in Google Maps
About Pomona Dam & Reservoir
As of September 11, 2026, Pomona Dam & Reservoir is filled to 78.3% of its total capacity, holding roughly 68 hm³ of water out of a maximum 87 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).
Across the readings we hold for Pomona Dam & Reservoir — 328 data points between September 12, 2021 and September 11, 2026 — the level has ranged from a low of 69.2% (January 30, 2022) to a high of 105.0% (October 12, 2021). On average the reservoir is fullest around April and at its lowest around February.
It is operated by USACE primarily for multiple purposes. It lies within the Kansas basin at 38.651°N, 95.558°W.
Key facts
- Current fill level
- 78.3%
- Water stored
- 68 hm³
- Total capacity
- 87 hm³
- 7-day change
- ▼ 0.3 pts
- Primary use
- Multipurpose
- River basin
- Kansas
- Operator
- USACE
- Coordinates
- 38.651°N, 95.558°W
- Last updated
- September 11, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 11 Sep 2026 | 78.3% | 68 |
| 10 Sep 2026 | 78.4% | 68 |
| 9 Sep 2026 | 77.7% | 68 |
| 8 Sep 2026 | 77.6% | 68 |
| 7 Sep 2026 | 78.0% | 68 |
| 6 Sep 2026 | 78.2% | 68 |
| 5 Sep 2026 | 78.5% | 68 |
| 4 Sep 2026 | 78.6% | 68 |
| 3 Sep 2026 | 78.9% | 69 |
| 2 Sep 2026 | 79.1% | 69 |
| 1 Sep 2026 | 79.4% | 69 |
| 31 Aug 2026 | 79.7% | 69 |