Lake Graham is a productive, nutrient-rich eutrophic lake in Young County, Texas. Water quality is graded C based on 2 sampling years through 2025. Compared to the 1 other monitored lakes in Young County, Lake Graham ranks #1 for water quality.
Source: EPA Water Quality Portal sampling records, Texas DNR, last sampled 2025-08-13. Grade methodology: LakeGrade methodology.
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Swimming Safety
Swim with caution, moderate algae may be present
Water Quality Grade: C, Fair
Murky, only visible to about 3.6 ft. Phosphorus level: 40 µg/L. Chlorophyll-a: 16.4 µg/L. Trophic State Index: 58.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 3.6 ft | D |
| Phosphorus | 40 µg/L | C |
| Chlorophyll-a (Algae) | 16.4 µg/L | C |
| Trophic State Index (TSI) | 58 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Lake Graham
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Fishing Lake Graham
Location
County Ranking
Ranked #1 of 2 lakes in Young County
Cleaner Lakes Within 30 Miles
Lake Graham holds Grade C. One nearby lake has a higher grade.
See full comparison →Nearby Lakes in Young County
Explore Lake Graham across LakeGrade
More Texas Lake Rankings
Other Grade C Lakes in Texas
Stephens County · Clarity: 3.9 ft
Jack County · Clarity: 4.3 ft
Stephens County · Clarity: 3.1 ft
Palo Pinto County · Clarity: 3.9 ft
Eastland County · Clarity: 1.8 ft
Brown County · Clarity: 1.8 ft
Eutrophic Lakes in Texas
More records, surveys & data sources
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2025-08-13
Monitoring stations: 1