Bell County, Texas · Water Quality Report Card
Belton Creek Reservoir Cowhouse Creek Arm
Belton Creek Reservoir Cowhouse Creek Arm in Bell County, Texas is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 2.7 ft visibility.
- Clarity
- 2.7 ft
- Mean depth
- ~178 ft est.
- Type
- Eutrophic
- Trend
- ↓ Declining
Belton Creek Reservoir Cowhouse Creek Arm is a productive, nutrient-rich eutrophic lake in Bell County, Texas with an estimated average depth of about 178 feet. Overall water quality is declining over recent sampling years.
Source: EPA Water Quality Portal sampling records, TCEQ, last sampled 2025-12-17. 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
Very murky, less than 2.7 ft of visibility. Trophic State Index: 63.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.7 ft | |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 63 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Average Depth | ~178 ft est. |
Depth marked “est.” is a modeled estimate from HydroLAKES, not a measured survey. Texas has not published bathymetry for Belton Creek Reservoir Cowhouse Creek Arm.
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Fishing Belton Creek Reservoir Cowhouse Creek Arm
Water Quality Trend: ↓ Declining
Based on 2 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -0.74 m/yr | 2 |
Location
Nearby Lakes in Bell County
Explore Belton Creek Reservoir Cowhouse Creek Arm across LakeGrade
10.7 mi away
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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
6 measurements from 1 monitoring station, 2024–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Texas Commission on Environmental Quality
TCEQMAIN6 samples · 2024–2025
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: 2025-12-17
Monitoring stations: 1