Robin Hood Lake
Warren County, WisconsinEutrophic
Robin Hood Lake is a 9-acre productive, nutrient-rich eutrophic lake in Warren County, MO. Water quality is graded D based on 3 sampling years through 2024. Compared to the 15 other monitored lakes in Warren County, Robin Hood Lake ranks #16 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
Swimming not recommended, poor water quality with high algae risk
Water Quality Grade: D, Poor
Very murky, less than 3 ft of visibility. Phosphorus level: 58 µg/L. Chlorophyll-a: 20.7 µg/L. Trophic State Index: 62.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 3 ft | F |
| Phosphorus | 58 µg/L | C |
| Chlorophyll-a (Algae) | 20.7 µg/L | D |
| Trophic State Index (TSI) | 62 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 9 acres |
Location
County Ranking
Ranked #16 of 16 lakes in Warren County
Cleaner Lakes Within 30 Miles
Robin Hood Lake holds Grade D. 5 nearby lakes hold higher grades.
- BSherwood Lake Nr. DamWarren County · 0.6 mi · Two grade letters higher (D → B)
- BSherwood LakeWarren County · 1 mi · Two grade letters higher (D → B)
- CAspen Lake Along Southern ArmWarren County · 6.3 mi · Higher grade (D → C)
- DRobin Hood LakesWarren County · 0 mi · Higher overall water quality score
- DSugar Hollow LakeWarren County · 0.5 mi · Higher overall water quality score
Nearby Lakes in Warren County
More Wisconsin Lake Rankings
Other Grade D Lakes in Wisconsin
St. Louis city County · Clarity: 2.3 ft
Shelby County · Clarity: 3.2 ft
Macon County · Clarity: 1.8 ft
Harrison County · Clarity: 1.7 ft
Stone County · Clarity: 2.3 ft
Knox County · Clarity: 2.1 ft
Eutrophic Lakes in Wisconsin
Reservoir Info (USACE NID)
Robin Hood Lake is a man-made reservoir impounded by the Lake Robin Hood Dam (completed 1970), built primarily for recreation on the TR-WOLF CREEK; earth-type dam, 34 ft tall.
- Surface area
- 9 ac
- Normal storage
- 78 ac-ft
- Max storage
- 164 ac-ft
- Drainage area
- 460 sq mi
- Hazard class
- Low
- Owner
- LK SHERWOOD ESTATES HOA
Source: USACE National Inventory of Dams, NID ID MO10447 · 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