Fossil Lake is a productive, nutrient-rich eutrophic lake in Russell County, Kansas. Water quality is graded C based on 2 sampling years through 2018. Compared to the 2 other monitored lakes in Russell County, Fossil Lake ranks #3 for water quality.
Source: EPA Water Quality Portal sampling records, Kansas DNR, last sampled 2018-07-16. Grade methodology: LakeGrade methodology.
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Swimming Safety
Swim with caution, moderate algae may be present
Water Quality Grade: C, Fair
Very murky, less than 0.7 ft of visibility. Phosphorus level: 0.4 µg/L. Chlorophyll-a: 142 µg/L. Trophic State Index: 51.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 0.7 ft | F |
| Phosphorus | 0.4 µg/L | A |
| Chlorophyll-a (Algae) | 142 µg/L | F |
| Trophic State Index (TSI) | 51 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Fossil Lake
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Fishing Fossil Lake
Location
County Ranking
Ranked #3 of 3 lakes in Russell County
Cleaner Lakes Within 30 Miles
Fossil Lake holds Grade C. 2 nearby lakes hold higher grades.
- AWilson LakeRussell County · 20.3 mi · Two grade letters higher (C → A)
- BNla LakeRussell County · 16.2 mi · Higher grade (C → B)
Nearby Lakes in Russell County
Explore Fossil Lake across LakeGrade
More Kansas Lake Rankings
Other Grade C Lakes in Kansas
Eutrophic Lakes in Kansas
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: 2018-07-16
Monitoring stations: 1