Reservoir · Kansas · United States · USACE CWMS
Toronto Lake
17.6% full
Capacity
128.55 hm³
Volume stored
23 hm³
Coordinates
37.742°N, 95.933°W
Last updated
2026-09-17
Current fill
17.6%vs 7 days ago
+2.1%gaining
vs 1 year ago
N/A7-day trend
↑rising
Data source: USACE CWMS — US Army Corps of Engineers — daily reservoir storage volume. Design capacity is unavailable for this site, so fill % is estimated against the 5-year maximum storage and may overstate fullness. Last reading: 2026-09-17.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 37.742, -95.933 · Open in Google Maps
About Toronto Lake
As of September 17, 2026, Toronto Lake is filled to 17.6% of its total capacity, holding roughly 23 hm³ of water out of a maximum 129 hm³. At this level the reservoir is critically low.
Over the most recent week on record the fill level has risen by 2.1 percentage points.
Across the readings we hold for Toronto Lake — 329 data points between September 18, 2021 and September 17, 2026 — the level has ranged from a low of 15.0% (July 24, 2026) to a high of 100.0% (June 27, 2026). On average the reservoir is fullest around June and at its lowest around August.
It is operated by USACE primarily for multiple purposes. It lies within the Kansas basin at 37.742°N, 95.933°W.
Key facts
- Current fill level
- 17.6%
- Water stored
- 23 hm³
- Total capacity
- 129 hm³
- 7-day change
- ▲ 2.1 pts
- Primary use
- Multipurpose
- River basin
- Kansas
- Operator
- USACE
- Coordinates
- 37.742°N, 95.933°W
- Last updated
- September 17, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 17 Sep 2026 | 17.6% | 23 |
| 16 Sep 2026 | 17.5% | 22 |
| 15 Sep 2026 | 17.3% | 22 |
| 14 Sep 2026 | 16.6% | 21 |
| 13 Sep 2026 | 15.6% | 20 |
| 12 Sep 2026 | 15.5% | 20 |
| 11 Sep 2026 | 15.5% | 20 |
| 10 Sep 2026 | 15.5% | 20 |
| 9 Sep 2026 | 15.4% | 20 |
| 8 Sep 2026 | 15.4% | 20 |
| 7 Sep 2026 | 15.5% | 20 |
| 6 Sep 2026 | 15.6% | 20 |