Loto Upstream of Dam Lake
Miller County, WisconsinEutrophic
Loto Upstream of Dam Lake is a 55,342-acre productive, nutrient-rich eutrophic lake in Miller County, MO. Water quality is graded B based on 3 sampling years through 2024. Compared to the 7 other monitored lakes in Miller County, Loto Upstream of Dam Lake ranks #1 for water quality.
Source: EPA Water Quality Portal sampling records, local state DNR records, last sampled 2024-09-25. 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 6.7 ft. Phosphorus level: 28.1 µg/L. Chlorophyll-a: 9.2 µg/L. Trophic State Index: 51.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 6.7 ft | C |
| Phosphorus | 28.1 µg/L | B |
| Chlorophyll-a (Algae) | 9.2 µg/L | B |
| Trophic State Index (TSI) | 51 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 55.3K acres |
Location
County Ranking
Ranked #1 of 8 lakes in Miller County
Nearby Lakes in Miller County
More Wisconsin Lake Rankings
Other Grade B Lakes in Wisconsin
Eutrophic Lakes in Wisconsin
Reservoir Info (USACE NID)
Loto Upstream of Dam Lake is a man-made reservoir impounded by the Bagnell (completed 1931), built primarily for hydroelectric on the Osage River; gravity-type dam, 148 ft tall and 2,543 ft long.
- Surface area
- 55,342 ac
- Normal storage
- 1,926,800 ac-ft
- Max storage
- 2,677,000 ac-ft
- Drainage area
- 14,000 sq mi
- Hazard class
- High
- Owner
- Union Electric Company
All listed purposes: Hydroelectric;Recreation;Flood Risk Reduction.
Source: USACE National Inventory of Dams, NID ID MO30014 · Operator website · Matched by proximity (0.79 km)
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2024-09-25
Monitoring stations: 1