Tecumseh Lake
Pottawatomie County, Oklahoma127 acresView mapDirections
Oklahoma DEQ publishes the water-quality measurements for Tecumseh Lake. Here is what has been measured.
- 26 ft max depth
- Limited data
Tecumseh Lake in Pottawatomie County, Oklahoma has water-quality measurements published by Oklahoma DEQ, shown here as reported. Water clarity: 0.9 ft visibility. Surface area: 127 acres.
Tecumseh Lake is a 127-acre lake in Pottawatomie County, Oklahoma with an estimated average depth of about 26 feet.
Source: EPA Water Quality Portal sampling records, ODEQ, last sampled 2018-07-25. Methodology: how these readings are compared.
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Tecumseh Lake is safe to swim in today is a call for the Oklahoma Department of Environmental Quality and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Tecumseh Lake
These are the measurements Oklahoma DEQ publishes for Tecumseh Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Very murky, less than 0.9 ft of visibility. TSI 78.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 0.9ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | No reading The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. | |
| Chlorophyll-a (algae) | No reading The green pigment in algae — a direct measure of how much algae is in the water. | |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 78 | Hypereutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Very high nutrients, dense algae, poor clarity
Ask about Tecumseh Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
~26 ft est.
Surface area
127 acres
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Oklahoma has not published bathymetry for Tecumseh Lake.
Lake Size & Watershed
Watershed (drainage) area
5 sq mi
HydroLAKES / HydroSHEDS
Shoreline
2.5 mi
HydroLAKES / HydroSHEDS
Elevation
1,027 ft
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth here is modelled, not surveyed — HydroLAKES v1.0 estimates lake depth from surrounding terrain rather than from soundings. Treat it as an approximation, and prefer a state bathymetric survey where one exists.
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Fishing Tecumseh Lake
Reservoir Info (USACE NID)
Tecumseh Lake is a man-made reservoir impounded by the Tecumseh (completed 1934), built primarily for water supply on the Tr Squirrel Creek; earth-type dam, 30 ft tall and 2,363 ft long.
- Surface area
- 127 ac
- Normal storage
- 1,118 ac-ft
- Max storage
- 2,370 ac-ft
- Drainage area
- 4.79 sq mi
- Hazard class
- High
- Owner
- City of Tecumseh
Source: USACE National Inventory of Dams, NID ID OK02593 · Operator website
Nearby Lakes in Pottawatomie County
Frequently asked questions about Tecumseh Lake
Where is Tecumseh Lake?
- Tecumseh Lake is a lake in Pottawatomie County, Oklahoma. Its water-quality measurements are published by Oklahoma DEQ and shown on this page as reported.
What is the water quality of Tecumseh Lake?
- Tecumseh Lake in Pottawatomie County, Oklahoma has water-quality measurements published by Oklahoma DEQ, shown here as reported. Water clarity: 0.9 ft visibility. Surface area: 127 acres.
Is Tecumseh Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Tecumseh Lake?
- No published bathymetric survey covers Tecumseh Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 26 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate. The lake covers 127 acres.
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Where this data comes from
12 measurements from 3 monitoring stations, 2017–2018. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- OWRB Lakes Monitoring
OKWRB-LAKES_WQX12 samples · 2017–2018
Analytical methods
- OWRB Lakes Field Data Collection
Monitoring station identifiers (3)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.
Other records on this page
Lake size & watershed from HydroLAKES (HydroSHEDS)