Sherwood Lake
Warren County, WisconsinMesotrophic
Sherwood Lake is a 145-acre mesotrophic lake in Warren County, MO. Water quality is graded B based on 3 sampling years through 2024. Compared to the 15 other monitored lakes in Warren County, Sherwood Lake ranks #6 for water quality.
Source: EPA Water Quality Portal sampling records, local state DNR records, last sampled 2024-09-14. Grade methodology: LakeGrade methodology.
Swimming Safety
Good for swimming, clear water with low algae levels
Water Quality Grade: B, Good
Murky, only visible to about 4.9 ft. Phosphorus level: 17.8 µg/L. Chlorophyll-a: 4.3 µg/L. Trophic State Index: 48.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 4.9 ft | D |
| Phosphorus | 17.8 µg/L | A |
| Chlorophyll-a (Algae) | 4.3 µg/L | A |
| Trophic State Index (TSI) | 48 | Mesotrophic |
Moderate nutrients, good water quality
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 145 acres |
Location
County Ranking
Ranked #6 of 16 lakes in Warren County
Nearby Lakes in Warren County
More Wisconsin Lake Rankings
Other Grade B Lakes in Wisconsin
Taney County · Clarity: 10 ft
Taney County · Clarity: 8.7 ft
Adair County · Clarity: 4.1 ft
Clark County · Clarity: 8.5 ft
Stone County · Clarity: 6.9 ft
Miller County · Clarity: 6.7 ft
Mesotrophic Lakes in Wisconsin
Reservoir Info (USACE NID)
Sherwood Lake is a man-made reservoir impounded by the Lake Sherwood Dam (completed 1967), built primarily for recreation on the WOLF CREEK; earth-type dam, 67 ft tall and 1,000 ft long.
- Surface area
- 145 ac
- Normal storage
- 2,982 ac-ft
- Max storage
- 4,004 ac-ft
- Drainage area
- 4.59 sq mi
- Hazard class
- High
- Owner
- LAKE SHERWOOD ESTATES
Source: USACE National Inventory of Dams, NID ID MO10202 · Operator website
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2024-09-14
Monitoring stations: 1