Lake of the Woods
Boone County, WisconsinMesotrophic
Lake of the Woods is a 9-acre mesotrophic lake in Boone County, MO. Water quality is graded B based on 3 sampling years through 2022. Compared to the 11 other monitored lakes in Boone County, Lake of the Woods ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, local state DNR records, last sampled 2022-08-31. 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 7 ft. Phosphorus level: 20 µg/L. Chlorophyll-a: 4.9 µg/L. Trophic State Index: 48.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 7 ft | C |
| Phosphorus | 20 µg/L | B |
| Chlorophyll-a (Algae) | 4.9 µg/L | A |
| Trophic State Index (TSI) | 48 | Mesotrophic |
Moderate nutrients, good water quality
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 9 acres |
Location
County Ranking
Ranked #2 of 12 lakes in Boone County
Nearby Lakes in Boone County
More Wisconsin Lake Rankings
Other Grade B Lakes in Wisconsin
Mesotrophic Lakes in Wisconsin
Reservoir Info (USACE NID)
Lake of the Woods is a man-made reservoir impounded by the Welch Lake Dam (completed 1960), built primarily for recreation on the HOMINY BRANCH; earth-type dam, 22 ft tall.
- Surface area
- 9 ac
- Normal storage
- 49 ac-ft
- Max storage
- 106 ac-ft
- Drainage area
- 2,100 sq mi
- Hazard class
- High
- Owner
- EDW,INC.
Source: USACE National Inventory of Dams, NID ID MO10733 · Operator website · Matched by proximity (0.46 km)
EPA Impairment Status
Lake of the Woods is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).
Causes of impairment
Source: EPA ATTAINS assessment unit MO_7436.00 · Official waterbody report
Data Sources
Water quality data from the EPA Water Quality Portal
Impairment status from EPA ATTAINS 303(d) database
Grading methodology based on Metropolitan Council standards
Most recent sample: 2022-08-31
Monitoring stations: 1