Grayson County, Texas · 33.87°N · Water Quality Report Card
Lake Texoma
Lake Texoma in Grayson County, Texas is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 5.1 ft visibility.
- Clarity
- 5.1 ft
- Mean depth
- ~80 ft est.
- Type
- Eutrophic
Lake Texoma is a productive, nutrient-rich eutrophic lake in Grayson County, Texas with an estimated average depth of about 80 feet.
Source: EPA Water Quality Portal sampling records, TCEQ, last sampled 2021-06-14. Grade methodology: LakeGrade methodology.
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Swimming Safety
Not rated for swimming — there is not enough monitoring data to judge this lake
Water Quality Grade: Not rated
Murky, only visible to about 5.1 ft. Trophic State Index: 54.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 5.1 ft | |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 54 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Average Depth | ~80 ft est. |
Depth marked “est.” is a modeled estimate from HydroLAKES, not a measured survey. Texas has not published bathymetry for Lake Texoma.
Where to stay near Lake Texoma
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Fishing Lake Texoma
Location
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Explore Lake Texoma across LakeGrade
Depth, room, public access, and the state wake-sport rules
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High nutrients, frequent algae, reduced clarity
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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.
Where this data comes from
11 measurements from 2 monitoring stations, 2020–2021. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- USGS Texas Water Science Center
USGS-TX10 samples · 2020 - OWRB Lakes Monitoring
OKWRB-LAKES_WQX1 sample · 2021
Monitoring station identifiers (2)
Grade thresholds come from the U.S. EPA National Lakes Assessment 2022 Technical Support Document (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated.
Data Sources
Water quality data from the EPA Water Quality Portal
Lake size & watershed from HydroLAKES (HydroSHEDS)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion
Most recent sample: 2021-06-14
Monitoring stations: 2