Lake Sugema
Van Buren County, WisconsinEutrophic
Lake Sugema is a 574-acre productive, nutrient-rich eutrophic lake in Van Buren County, IA. Water quality is graded F based on 2 sampling years through 2024. Compared to the 2 other monitored lakes in Van Buren County, Lake Sugema ranks #3 for water quality.
Source: EPA Water Quality Portal sampling records, local state DNR records, last sampled 2024-09-16. Grade methodology: LakeGrade methodology.
Swimming Safety
Avoid swimming, very poor water quality, potential algae toxins
Water Quality Grade: F, Very Poor
Very murky, less than 2.3 ft of visibility. Chlorophyll-a: 32.5 µg/L. Trophic State Index: 65.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.3 ft | F |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | 32.5 µg/L | F |
| Trophic State Index (TSI) | 65 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 574 acres |
Location
County Ranking
Ranked #3 of 3 lakes in Van Buren County
Cleaner Lakes Within 30 Miles
Lake Sugema holds Grade F. 2 nearby lakes hold higher grades.
- BLacey Keosauqua LakeVan Buren County · 2.1 mi · Two grade letters higher (F → B)
- CPoll Miller Park LakeLee County · 29 mi · Two grade letters higher (F → C)
Nearby Lakes in Van Buren County
More Wisconsin Lake Rankings
Other Grade F Lakes in Wisconsin
Eutrophic Lakes in Wisconsin
Reservoir Info (USACE NID)
Lake Sugema is a man-made reservoir impounded by the Lake Sugema Dam (completed 1992), built primarily for recreation on the INDIAN CREEK; earth-type dam, 50 ft tall and 1,530 ft long.
- Surface area
- 574 ac
- Normal storage
- 7,350 ac-ft
- Max storage
- 21,570 ac-ft
- Drainage area
- 17.66 sq mi
- Hazard class
- High
- Owner
- Van Buren County Board of Supervisors
All listed purposes: Recreation;Water Supply;Flood Risk Reduction.
Source: USACE National Inventory of Dams, NID ID IA02626 · Operator website
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2024-09-16
Monitoring stations: 1