Callaway Fork Lake
St. Charles County, WisconsinEutrophic
Callaway Fork Lake is a productive, nutrient-rich eutrophic lake in St. Charles County, MO. Water quality is graded D based on 3 sampling years through 2021. Compared to the 10 other monitored lakes in St. Charles County, Callaway Fork Lake ranks #5 for water quality.
Source: EPA Water Quality Portal sampling records, local state DNR records, last sampled 2021-07-26. Grade methodology: LakeGrade methodology.
Swimming Safety
Swimming not recommended, poor water quality with high algae risk
Water Quality Grade: D, Poor
Very murky, less than 2.1 ft of visibility. Phosphorus level: 78.5 µg/L. Chlorophyll-a: 18.1 µg/L. Trophic State Index: 64.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.1 ft | F |
| Phosphorus | 78.5 µg/L | D |
| Chlorophyll-a (Algae) | 18.1 µg/L | C |
| Trophic State Index (TSI) | 64 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Location
County Ranking
Ranked #5 of 11 lakes in St. Charles County
Cleaner Lakes Within 30 Miles
Callaway Fork Lake holds Grade D. 5 nearby lakes hold higher grades.
- BSherwood LakeWarren County · 5.7 mi · Two grade letters higher (D → B)
- BLake 37St. Charles County · 4.6 mi · Two grade letters higher (D → B)
- DCallaway Fork LakeSt. Charles County · 1.5 mi · Higher overall water quality score
- DLake EleanorWarren County · 5.7 mi · Higher overall water quality score
- DLake EleanorWarren County · 5.7 mi · Higher overall water quality score
Nearby Lakes in St. Charles County
More Wisconsin Lake Rankings
Other Grade D Lakes in Wisconsin
St. Louis city County · Clarity: 2.3 ft
Shelby County · Clarity: 3.2 ft
Macon County · Clarity: 1.8 ft
Harrison County · Clarity: 1.7 ft
Stone County · Clarity: 2.3 ft
Knox County · Clarity: 2.1 ft
Eutrophic Lakes in Wisconsin
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2021-07-26
Monitoring stations: 1