Lake Afton is a highly nutrient-loaded hypereutrophic lake in Sedgwick County, Kansas. Water quality is graded D based on 2 sampling years through 2018. Compared to the 8 other monitored lakes in Sedgwick County, Lake Afton ranks #4 for water quality.
Source: EPA Water Quality Portal sampling records, Kansas DNR, last sampled 2018-08-22. 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 1.7 ft of visibility. Phosphorus level: 80.1 µg/L. Chlorophyll-a: 90.1 µg/L. Trophic State Index: 70.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1.7 ft | F |
| Phosphorus | 80.1 µg/L | D |
| Chlorophyll-a (Algae) | 90.1 µg/L | F |
| Trophic State Index (TSI) | 70 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
Where to stay near Lake Afton
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Fishing Lake Afton
Location
County Ranking
Ranked #4 of 9 lakes in Sedgwick County
Cleaner Lakes Within 30 Miles
Lake Afton holds Grade D. 2 nearby lakes hold higher grades.
- BNla LakeSedgwick County · 12.9 mi · Two grade letters higher (D → B)
- CCheney LakeSedgwick County · 12.6 mi · Higher grade (D → C)
Nearby Lakes in Sedgwick County
Explore Lake Afton across LakeGrade
More Kansas Lake Rankings
Other Grade D Lakes in Kansas
Sumner County · Clarity: 1.9 ft
Harvey County · Clarity: 1.4 ft
Reno County · Clarity: 1.5 ft
Butler County · Clarity: 1 ft
Harper County · Clarity: 0.4 ft
Sumner County · Clarity: 0.7 ft
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: 2018-08-22
Monitoring stations: 1