Atoka Lake
Atoka County, Oklahoma4,980 acresView mapDirections
Oklahoma DEQ publishes the water-quality measurements for Atoka Lake. Here is what has been measured.
- Impaired · Algal growth
- 67 ft max depth
- Limited data
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Answers come straight from the public measurements and survey records on this page.
Atoka Lake in Atoka County, Oklahoma has water-quality measurements published by Oklahoma DEQ, shown here as reported. Water clarity: 1.8 ft visibility. Surface area: 4980 acres.
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Atoka Lake is a 4,980-acre lake in Atoka County, Oklahoma with an estimated average depth of about 67 feet.
Source: EPA Water Quality Portal sampling records, ODEQ, last sampled 2024-10-16. Grade methodology: LakeQuality methodology.
What Atoka Lake is good for
From access and monitoring records, not editorial picks.
- Big water4,980 acres
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Atoka Lake is listed impaired under Clean Water Act §303(d) (IR 5) for algal growth, mercury, metals (other than mercury), turbidity. Check local advisories before you swim.
Whether Atoka 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 Atoka Lake
These are the measurements Oklahoma DEQ publishes for Atoka 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 1.8 ft of visibility. TSI 69.
| Metric | Value | EPA condition class |
|---|---|---|
| Water Clarity (Secchi Depth) | 1.8 ft | Measured, not scored |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 69 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | ~67 ft est. |
| Average Depth | ~36 ft est. |
| Surface Area | 4,980 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 Atoka Lake.
Lake Size & Watershed
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.
Fishing Atoka Lake
Reservoir Info (USACE NID)
Atoka Lake is a man-made reservoir impounded by the Atoka (completed 1957), built primarily for water supply; earth-type dam, 88 ft tall and 850 ft long.
- Surface area
- 4,980 ac
- Normal storage
- 111,868 ac-ft
- Max storage
- 226,594 ac-ft
- Drainage area
- 172 sq mi
- Hazard class
- High
- Owner
- Oklahoma City Water Utilities Trust
Source: USACE National Inventory of Dams, NID ID OK00092 · Operator website
EPA Impairment Status
Atoka Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).
Causes of impairment
Source: EPA ATTAINS assessment unit OK410400080020_00 · Official waterbody report
Nearby Lakes in Atoka County
Frequently asked questions about Atoka Lake
Where is Atoka Lake?
- Atoka Lake is a lake in Atoka County, Oklahoma. Its water-quality measurements are published by Oklahoma DEQ and shown on this page as reported.
What is the water quality of Atoka Lake?
- Atoka Lake in Atoka County, Oklahoma has water-quality measurements published by Oklahoma DEQ, shown here as reported. Water clarity: 1.8 ft visibility. Surface area: 4980 acres.
Is Atoka Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Atoka Lake is listed impaired under Clean Water Act §303(d) (IR 5) for algal growth, mercury, metals (other than mercury), turbidity. Check local advisories before you swim.
How deep is Atoka Lake?
- No published bathymetric survey covers Atoka Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 67 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 4980 acres.
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Where this data comes from
48 measurements from 5 monitoring stations, 2016–2024. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- OWRB Lakes Monitoring
OKWRB-LAKES_WQX48 samples · 2016–2024
Analytical methods
- OWRB Lakes Field Data Collection
- Determination of Turbidity
Monitoring station identifiers (5)
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
Impairment status from EPA ATTAINS 303(d) database
Lake size & watershed from HydroLAKES (HydroSHEDS)