Lone Star Reservoir is a highly nutrient-loaded hypereutrophic lake in Fillmore County, Nebraska. Water quality is graded D based on 2 sampling years through 2024.
Source: EPA Water Quality Portal sampling records, Nebraska DNR, last sampled 2024-09-04. Grade methodology: LakeGrade methodology.
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Swimming Safety
Swimming not recommended, poor water quality with high algae risk
Water Quality Grade: D, Poor
Very murky, less than 2.1 ft of visibility. Phosphorus level: 885 µg/L. Chlorophyll-a: 36.5 µg/L. Trophic State Index: 78.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.1 ft | F |
| Phosphorus | 885 µg/L | F |
| Chlorophyll-a (Algae) | 36.5 µg/L | D |
| Trophic State Index (TSI) | 78 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
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Fishing Lone Star Reservoir
Location
County Ranking
Ranked #1 of 1 lakes in Fillmore County
Cleaner Lakes Within 30 Miles
Lone Star Reservoir holds Grade D. One nearby lake has a higher grade.
See full comparison →Nearby Lakes in Fillmore County
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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: 2024-09-04
Monitoring stations: 1