Big Eleven Lake is a highly nutrient-loaded hypereutrophic lake in Wyandotte County, Kansas. Water quality is graded F based on 2 sampling years through 2024. Compared to the 5 other monitored lakes in Wyandotte County, Big Eleven Lake ranks #6 for water quality.
Source: EPA Water Quality Portal sampling records, Kansas DNR, last sampled 2024-09-05. 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
No clarity data. Phosphorus level: 131 µg/L. Chlorophyll-a: 50.6 µg/L. Trophic State Index: 72.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No data | |
| Phosphorus | 131 µg/L | F |
| Chlorophyll-a (Algae) | 50.6 µg/L | F |
| Trophic State Index (TSI) | 72 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
Where to stay near Big Eleven Lake
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Fishing Big Eleven Lake
Location
County Ranking
Ranked #6 of 6 lakes in Wyandotte County
Cleaner Lakes Within 30 Miles
Big Eleven Lake holds Grade F. 4 nearby lakes hold higher grades.
- ANla LakeWyandotte County · 8.5 mi · Two grade letters higher (F → A)
- DPierson LakeWyandotte County · 5.3 mi · Higher grade (F → D)
- DQuivira LakeWyandotte County · 8.7 mi · Higher grade (F → D)
- DSar Ko Park LakeJohnson County · 12.1 mi · Higher grade (F → D)
Nearby Lakes in Wyandotte County
Explore Big Eleven Lake across LakeGrade
More Kansas Lake Rankings
Other Grade F Lakes in Kansas
Hypereutrophic 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: 2024-09-05
Monitoring stations: 1