Clinton Lake
Washita County, Oklahoma335 acresView mapDirections
Oklahoma DEQ publishes the water-quality measurements for Clinton Lake. Here is what has been measured.
- Impaired · Algal growth
- 23 ft max depth
- Limited data
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Answers come straight from the public measurements and survey records on this page.
Clinton Lake in Washita County, Oklahoma has water-quality measurements published by Oklahoma DEQ, shown here as reported. Water clarity: 1.3 ft visibility. Surface area: 335 acres.
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Clinton Lake is a 335-acre lake in Washita County, Oklahoma with an estimated average depth of about 23 feet. Overall water quality is improving over recent sampling years.
Source: EPA Water Quality Portal sampling records, ODEQ, last sampled 2023-08-30. Grade methodology: LakeQuality methodology.
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Clinton Lake is listed impaired under Clean Water Act §303(d) (IR 5) for algal growth, turbidity. Check local advisories before you swim.
Whether Clinton 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 Clinton Lake
These are the measurements Oklahoma DEQ publishes for Clinton 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 1.3 ft of visibility. TSI 73.
| Metric | Value | EPA condition class |
|---|---|---|
| Water Clarity (Secchi Depth) | 1.3 ft | Measured, not scored |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 73 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | ~23 ft est. |
| Average Depth | ~12 ft est. |
| Surface Area | 335 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 Clinton 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 Clinton Lake
Water Quality Trend: ↑ Improving
Based on 2 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +3.6 m/yr | 2 |
Reservoir Info (USACE NID)
Clinton Lake is a man-made reservoir impounded by the Clinton Lake (completed 1931), built primarily for water supply on the Turkey Creek; earth-type dam, 54 ft tall and 2,420 ft long.
- Surface area
- 335 ac
- Normal storage
- 3,980 ac-ft
- Max storage
- 6,270 ac-ft
- Drainage area
- 26.5 sq mi
- Hazard class
- High
- Owner
- City of Clinton
Source: USACE National Inventory of Dams, NID ID OK10497 · Operator website
EPA Impairment Status
Clinton 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 OK310830030280_00 · Official waterbody report
Nearby Lakes in Washita County
Frequently asked questions about Clinton Lake
Where is Clinton Lake?
- Clinton Lake is a lake in Washita County, Oklahoma. Its water-quality measurements are published by Oklahoma DEQ and shown on this page as reported.
What is the water quality of Clinton Lake?
- Clinton Lake in Washita County, Oklahoma has water-quality measurements published by Oklahoma DEQ, shown here as reported. Water clarity: 1.3 ft visibility. Surface area: 335 acres.
Is Clinton Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Clinton Lake is listed impaired under Clean Water Act §303(d) (IR 5) for algal growth, turbidity. Check local advisories before you swim.
How deep is Clinton Lake?
- No published bathymetric survey covers Clinton Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 23 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 335 acres.
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Where this data comes from
15 measurements from 3 monitoring stations, 2017–2023. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- OWRB Lakes Monitoring
OKWRB-LAKES_WQX15 samples · 2017–2023
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
Impairment status from EPA ATTAINS 303(d) database
Lake size & watershed from HydroLAKES (HydroSHEDS)