Swan Lake is a highly nutrient-loaded hypereutrophic lake in Holt County, Nebraska. Water quality is graded F based on 1 sampling years through 2019. Compared to the 2 other monitored lakes in Holt County, Swan Lake ranks #3 for water quality.
Source: EPA Water Quality Portal sampling records, Nebraska DNR, last sampled 2019-09-11. Grade methodology: LakeGrade methodology.
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Swimming Safety
Avoid swimming, very poor water quality, potential algae toxins
Water Quality Grade: F, Very Poor
Very murky, less than 1.8 ft of visibility. Chlorophyll-a: 74.8 µg/L. Trophic State Index: 71.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1.8 ft | F |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | 74.8 µg/L | F |
| Trophic State Index (TSI) | 71 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
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Fishing Swan Lake
Location
County Ranking
Ranked #3 of 3 lakes in Holt County
Cleaner Lakes Within 30 Miles
Swan Lake holds Grade F. 3 nearby lakes hold higher grades.
Nearby Lakes in Holt County
Explore Swan Lake across LakeGrade
More Nebraska Lake Rankings
Other Grade F Lakes in Nebraska
Hypereutrophic Lakes in Nebraska
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: 2019-09-11
Monitoring stations: 1