West Maggie Lake; Mastodon Township
Iron County, WisconsinEutrophic
West Maggie Lake; Mastodon Township is a productive, nutrient-rich eutrophic lake in Iron County, MI. Water quality is graded C based on 2 sampling years through 2023. Compared to the 38 other monitored lakes in Iron County, West Maggie Lake; Mastodon Township ranks #37 for water quality.
Source: EPA Water Quality Portal sampling records, local state DNR records, last sampled 2023-08-24. Grade methodology: LakeGrade methodology.
Swimming Safety
Generally safe for swimming, moderate water quality
Water Quality Grade: C, Fair
Moderate clarity, visible to about 8 ft. Chlorophyll-a: 15 µg/L. Trophic State Index: 52.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 8 ft | C |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | 15 µg/L | C |
| Trophic State Index (TSI) | 52 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Location
County Ranking
Ranked #37 of 39 lakes in Iron County
Cleaner Lakes Within 30 Miles
West Maggie Lake; Mastodon Township holds Grade C. One nearby lake has a higher grade.
See full comparison →Nearby Lakes in Iron County
More Wisconsin Lake Rankings
Other Grade C Lakes in Wisconsin
Cass County · Clarity: 7 ft
Leelanau County · Clarity: 9.5 ft
Iosco County · Clarity: 5.5 ft
Muskegon County · Clarity: 6.8 ft
Gladwin County · Clarity: 9 ft
Montmorency County · Clarity: 9 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: 2023-08-24
Monitoring stations: 1