Slipbluff Lake
Decatur County, WisconsinMesotrophic
Slipbluff Lake is a 18-acre mesotrophic lake in Decatur County, IA. Water quality is graded B based on 2 sampling years through 2024. Compared to the 2 other monitored lakes in Decatur County, Slipbluff Lake ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, local state DNR records, last sampled 2024-09-15. Grade methodology: LakeGrade methodology.
Swimming Safety
Good for swimming, clear water with low algae levels
Water Quality Grade: B, Good
Moderate clarity, visible to about 9 ft. Chlorophyll-a: 4.5 µg/L. Trophic State Index: 45.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 9 ft | C |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | 4.5 µg/L | A |
| Trophic State Index (TSI) | 45 | Mesotrophic |
Moderate nutrients, good water quality
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 18 acres |
Location
County Ranking
Ranked #2 of 3 lakes in Decatur County
Cleaner Lakes Within 30 Miles
Slipbluff Lake holds Grade B. One nearby lake has a higher grade.
See full comparison →Nearby Lakes in Decatur County
More Wisconsin Lake Rankings
Other Grade B Lakes in Wisconsin
Mesotrophic Lakes in Wisconsin
Reservoir Info (USACE NID)
Slipbluff Lake is a man-made reservoir impounded by the Slip Bluff Park Dam (completed 1970), built primarily for recreation on the TR-POTTEROFF CREEK; earth-type dam, 33 ft tall and 333 ft long.
- Surface area
- 18 ac
- Normal storage
- 230 ac-ft
- Max storage
- 464 ac-ft
- Drainage area
- 0.44 sq mi
- Hazard class
- Low
- Owner
- Decatur County Conservation Board
Source: USACE National Inventory of Dams, NID ID IA00349 · Operator website · Matched by proximity (1 km)
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2024-09-15
Monitoring stations: 1