Langston Lake
Logan County, Oklahoma295 acresView mapDirections
Oklahoma DEQ publishes the water-quality measurements for Langston Lake. Here is what has been measured.
- 40 ft max depth
- Limited data
Langston Lake in Logan County, Oklahoma has water-quality measurements published by Oklahoma DEQ, shown here as reported. Water clarity: 3.7 ft visibility. Surface area: 295 acres.
Langston Lake is a 295-acre lake in Logan County, Oklahoma with an estimated average depth of about 40 feet. Overall water quality is declining over recent sampling years.
Source: EPA Water Quality Portal sampling records, ODEQ, last sampled 2023-09-20. 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 Langston 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 Langston Lake
These are the measurements Oklahoma DEQ publishes for Langston Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Murky, only visible to about 3.7 ft. TSI 58.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 3.7ft | 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. | 58 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Langston Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
~40 ft est.
Surface area
295 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 Langston Lake.
Lake Size & Watershed
Watershed (drainage) area
6 sq mi
HydroLAKES / HydroSHEDS
Shoreline
3.8 mi
HydroLAKES / HydroSHEDS
Elevation
978 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 Langston Lake
Water quality readings over time
3 seasons of samples on record (2016–2023). Calling a direction takes at least 4 years of the same measurement.
Water clarity
Worsening3 years
Reservoir Info (USACE NID)
Langston Lake is a man-made reservoir impounded by the Langston Lake (completed 1969), built primarily for water supply on the Tributary to Fitzgeral Creek; earth-type dam, 63 ft tall and 2,360 ft long.
- Surface area
- 295 ac
- Normal storage
- 5,537 ac-ft
- Max storage
- 8,902 ac-ft
- Drainage area
- 6 sq mi
- Hazard class
- High
- Owner
- Langston University
Source: USACE National Inventory of Dams, NID ID OK02352 · Operator website
Nearby Lakes in Logan County
Frequently asked questions about Langston Lake
Where is Langston Lake?
- Langston Lake is a lake in Logan County, Oklahoma. Its water-quality measurements are published by Oklahoma DEQ and shown on this page as reported.
What is the water quality of Langston Lake?
- Langston Lake in Logan County, Oklahoma has water-quality measurements published by Oklahoma DEQ, shown here as reported. Water clarity: 3.7 ft visibility. Surface area: 295 acres.
Is Langston Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Langston Lake?
- No published bathymetric survey covers Langston Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 40 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 295 acres.
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Where this data comes from
24 measurements from 3 monitoring stations, 2016–2023. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- OWRB Lakes Monitoring
OKWRB-LAKES_WQX24 samples · 2016–2023
Analytical methods
- OWRB Lakes Field Data Collection
- Determination of Turbidity
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)