Holdenville Lake
Hughes County, OklahomaView mapDirections
Oklahoma DEQ publishes the water-quality measurements for Holdenville Lake. Here is what has been measured.
- Impaired · Algal growth
- 56 ft max depth
- Limited data
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Answers come straight from the public measurements and survey records on this page.
Holdenville Lake in Hughes County, Oklahoma has water-quality measurements published by Oklahoma DEQ, shown here as reported. Water clarity: 2.1 ft visibility.
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Holdenville Lake is a lake in Hughes County, Oklahoma with an estimated average depth of about 56 feet. Overall water quality is improving over recent sampling years.
Source: EPA Water Quality Portal sampling records, ODEQ, last sampled 2024-11-06. Grade methodology: LakeQuality methodology.
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Holdenville Lake is listed impaired under Clean Water Act §303(d) (IR 5) for algal growth, mercury, oxygen depletion (low DO), turbidity. Check local advisories before you swim.
Whether Holdenville 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 Holdenville Lake
These are the measurements Oklahoma DEQ publishes for Holdenville 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 2.1 ft of visibility. TSI 66.
| Metric | Value | EPA condition class |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.1 ft | Measured, not scored |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 66 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | ~56 ft est. |
| Average Depth | ~47 ft est. |
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Oklahoma has not published bathymetry for Holdenville 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 Holdenville Lake
Water Quality Trend: ↑ Improving
Based on 3 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +5.071 m/yr | 3 |
EPA Impairment Status
Holdenville Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).
Causes of impairment
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit OK520800010040_00 · Official waterbody report
Nearby Lakes in Hughes County
Frequently asked questions about Holdenville Lake
Where is Holdenville Lake?
- Holdenville Lake is a lake in Hughes County, Oklahoma. Its water-quality measurements are published by Oklahoma DEQ and shown on this page as reported.
What is the water quality of Holdenville Lake?
- Holdenville Lake in Hughes County, Oklahoma has water-quality measurements published by Oklahoma DEQ, shown here as reported. Water clarity: 2.1 ft visibility.
Is Holdenville Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Holdenville Lake is listed impaired under Clean Water Act §303(d) (IR 5) for algal growth, mercury, oxygen depletion (low DO), turbidity. Check local advisories before you swim.
How deep is Holdenville Lake?
- No published bathymetric survey covers Holdenville Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 56 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate.
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Where this data comes from
32 measurements from 3 monitoring stations, 2017–2024. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- OWRB Lakes Monitoring
OKWRB-LAKES_WQX32 samples · 2017–2024
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)