Deer Ridge Comm. Lake
Lewis County, WisconsinEutrophic
Deer Ridge Comm. Lake is a 48-acre productive, nutrient-rich eutrophic lake in Lewis County, MO. Water quality is graded D based on 3 sampling years through 2024.
Source: EPA Water Quality Portal sampling records, local state DNR records, last sampled 2024-07-31. 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 2.9 ft of visibility. Phosphorus level: 44 µg/L. Chlorophyll-a: 19.8 µg/L. Trophic State Index: 60.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.9 ft | F |
| Phosphorus | 44 µg/L | C |
| Chlorophyll-a (Algae) | 19.8 µg/L | C |
| Trophic State Index (TSI) | 60 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 48 acres |
Location
County Ranking
Ranked #1 of 1 lakes in Lewis County
Cleaner Lakes Within 30 Miles
Deer Ridge Comm. Lake holds Grade D. One nearby lake has a higher grade.
See full comparison →Nearby Lakes in Lewis 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)
Deer Ridge Comm. Lake is a man-made reservoir impounded by the Deer Ridge Community Lake Dam (completed 1960), built primarily for recreation on the TR-NORTH FABIUS RIVER; earth-type dam, 38 ft tall and 500 ft long.
- Surface area
- 48 ac
- Normal storage
- 528 ac-ft
- Max storage
- 608 ac-ft
- Drainage area
- 0.95 sq mi
- Hazard class
- High
- Owner
- MO DEPT OF CONSERVATION
Source: USACE National Inventory of Dams, NID ID MO10109 · Operator website · Matched by proximity (0.04 km)
EPA Impairment Status
Deer Ridge Comm. Lake 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_7015.00 · Official waterbody report · Matched by proximity (0.29 km)
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: 2024-07-31
Monitoring stations: 2