Lake George
McHenry County, WisconsinEutrophic
Lake George is a productive, nutrient-rich eutrophic lake in McHenry County, ND. Water quality is graded C based on 2 sampling years through 2021. Compared to the 2 other monitored lakes in McHenry County, Lake George ranks #3 for water quality.
Source: EPA Water Quality Portal sampling records, local state DNR records, last sampled 2021-10-11. Grade methodology: LakeGrade methodology.
Swimming Safety
Generally safe for swimming, moderate water quality
Water Quality Grade: C, Fair
Very murky, less than 2.5 ft of visibility. Chlorophyll-a: 7.4 µg/L. Trophic State Index: 57.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.5 ft | F |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | 7.4 µg/L | B |
| Trophic State Index (TSI) | 57 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Location
County Ranking
Ranked #3 of 3 lakes in McHenry County
Cleaner Lakes Within 30 Miles
Lake George holds Grade C. 3 nearby lakes hold higher grades.
- ARound LakeMcHenry County · 9.1 mi · Two grade letters higher (C → A)
- BVelva Sportsmans Dam LakeWard County · 28.6 mi · Higher grade (C → B)
- CBuffalo Lodge LakeMcHenry County · 21.3 mi · Higher overall water quality score
Nearby Lakes in McHenry County
More Wisconsin Lake Rankings
Other Grade C Lakes in Wisconsin
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: 2021-10-11
Monitoring stations: 1