Marion County, Texas · Water Quality Report Card
Caddo Lake Dwight Shellmans Home
Caddo Lake Dwight Shellmans Home in Marion County, Texas is not rated for water quality — its monitoring record does not meet the evidence bar.
- Mean depth
- ~51 ft est.
Caddo Lake Dwight Shellmans Home is a lake in Marion County, Texas with an estimated average depth of about 51 feet.
Source: EPA Water Quality Portal sampling records, TCEQ, last sampled 2025-05-15. 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
No clarity data.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No data | |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data |
Lake Details
| Characteristic | Value |
|---|---|
| Average Depth | ~51 ft est. |
Depth marked “est.” is a modeled estimate from HydroLAKES, not a measured survey. Texas has not published bathymetry for Caddo Lake Dwight Shellmans Home.
Where to stay near Caddo Lake Dwight Shellmans Home
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Fishing Caddo Lake Dwight Shellmans Home
Location
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More records, surveys & data sources
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
1 measurement from 1 monitoring station, 2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Texas Commission on Environmental Quality
TCEQMAIN1 sample · 2025
Monitoring station identifiers (1)
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: 2025-05-15
Monitoring stations: 1