El Dorado Lake is a productive, nutrient-rich eutrophic lake in Butler County, Kansas. Water quality is graded C based on 2 sampling years through 2017. Compared to the 3 other monitored lakes in Butler County, El Dorado Lake ranks #1 for water quality.
Source: EPA Water Quality Portal sampling records, Kansas DNR, last sampled 2017-07-17. Grade methodology: LakeGrade methodology.
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Swimming Safety
Generally safe for swimming, moderate water quality
Water Quality Grade: C, Fair
Very murky, less than 2.8 ft of visibility. Phosphorus level: 34.5 µg/L. Chlorophyll-a: 14.3 µg/L. Trophic State Index: 58.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.8 ft | F |
| Phosphorus | 34.5 µg/L | C |
| Chlorophyll-a (Algae) | 14.3 µg/L | C |
| Trophic State Index (TSI) | 58 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near El Dorado Lake
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Fishing El Dorado Lake
Location
County Ranking
Ranked #1 of 4 lakes in Butler County
Nearby Lakes in Butler County
Explore El Dorado 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: 2017-07-17
Monitoring stations: 1