Lake Cisco is a productive, nutrient-rich eutrophic lake in Eastland County, Texas. Water quality is graded B based on 1 sampling years through 2025. Compared to the 1 other monitored lakes in Eastland County, Lake Cisco ranks #1 for water quality.
Source: EPA Water Quality Portal sampling records, Texas DNR, last sampled 2025-06-09. Grade methodology: LakeGrade methodology.
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Swimming Safety
Good for swimming, clear water with low algae levels
Water Quality Grade: B, Good
Murky, only visible to about 3.9 ft. Chlorophyll-a: 4.8 µg/L. Trophic State Index: 52.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 3.9 ft | D |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | 4.8 µg/L | B |
| Trophic State Index (TSI) | 52 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Lake Cisco
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Fishing Lake Cisco
Location
County Ranking
Ranked #1 of 2 lakes in Eastland County
Nearby Lakes in Eastland County
Explore Lake Cisco across LakeGrade
More Texas Lake Rankings
Other Grade B Lakes in Texas
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: 2025-06-09
Monitoring stations: 1