Nodaway Lake
Nodaway County, WisconsinEutrophic
Nodaway Lake is a 73-acre productive, nutrient-rich eutrophic lake in Nodaway County, MO. Water quality is graded D based on 3 sampling years through 2024. Compared to the 4 other monitored lakes in Nodaway County, Nodaway Lake ranks #4 for water quality.
Source: EPA Water Quality Portal sampling records, local state DNR records, last sampled 2024-07-30. 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 2.1 ft of visibility. Phosphorus level: 57 µg/L. Chlorophyll-a: 34.8 µg/L. Trophic State Index: 65.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.1 ft | F |
| Phosphorus | 57 µg/L | C |
| Chlorophyll-a (Algae) | 34.8 µg/L | F |
| Trophic State Index (TSI) | 65 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 73 acres |
Location
County Ranking
Ranked #4 of 5 lakes in Nodaway County
Cleaner Lakes Within 30 Miles
Nodaway Lake holds Grade D. 3 nearby lakes hold higher grades.
- CMozingo Lake Between ArmsNodaway County · 6.8 mi · Higher grade (D → C)
- CHappy Holler LakeAndrew County · 28.5 mi · Higher grade (D → C)
- DBilby Ranch LakeNodaway County · 15.4 mi · Higher overall water quality score
Nearby Lakes in Nodaway 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)
Nodaway Lake is a man-made reservoir impounded by the Nodaway Lake Dam (completed 1966), built primarily for recreation on the TR-CANAL BRANCH; earth-type dam, 55 ft tall and 1,480 ft long.
- Surface area
- 73 ac
- Normal storage
- 530 ac-ft
- Max storage
- 1,716 ac-ft
- Drainage area
- 1.14 sq mi
- Hazard class
- High
- Owner
- MO DEPT OF CONSERVATION
All listed purposes: Recreation;Flood Risk Reduction.
Source: USACE National Inventory of Dams, NID ID MO10178 · Operator website
EPA Impairment Status
Nodaway 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_7076.00 · 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: 2024-07-30
Monitoring stations: 2