Lake of the Woods
Jackson County, WisconsinEutrophic
Lake of the Woods is a 6-acre productive, nutrient-rich eutrophic lake in Jackson County, MO. Water quality is graded F based on 2 sampling years through 2024. Compared to the 26 other monitored lakes in Jackson County, Lake of the Woods ranks #22 for water quality.
Source: EPA Water Quality Portal sampling records, local state DNR records, last sampled 2024-09-05. Grade methodology: LakeGrade methodology.
Swimming Safety
Avoid swimming, very poor water quality, potential algae toxins
Water Quality Grade: F, Very Poor
No clarity data. Phosphorus level: 111 µg/L. Chlorophyll-a: 35.2 µg/L. Trophic State Index: 69.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No data | |
| Phosphorus | 111 µg/L | F |
| Chlorophyll-a (Algae) | 35.2 µg/L | F |
| Trophic State Index (TSI) | 69 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 6 acres |
Location
County Ranking
Ranked #22 of 27 lakes in Jackson County
Cleaner Lakes Within 30 Miles
Lake of the Woods holds Grade F. 5 nearby lakes hold higher grades.
- CBlue Valley LakeJackson County · 5.9 mi · Two grade letters higher (F → C)
- CLongview Lake by DamJackson County · 5.9 mi · Two grade letters higher (F → C)
- DLongview L. Nr. Dam LakeJackson County · 5.7 mi · Higher grade (F → D)
- DValley LakeJackson County · 5.9 mi · Higher grade (F → D)
- FLake of the Woods-KcJackson County · 0 mi · Higher overall water quality score
Nearby Lakes in Jackson County
More Wisconsin Lake Rankings
Other Grade F Lakes in Wisconsin
St. Louis County · Clarity: 1.6 ft
St. Charles County · Clarity: 2.3 ft
St. Francois County · Clarity: 1.1 ft
Saline County · Clarity: 2.3 ft
Polk County · Clarity: 1.2 ft
Callaway County · Clarity: 1.7 ft
Eutrophic Lakes in Wisconsin
Reservoir Info (USACE NID)
Lake of the Woods is a man-made reservoir impounded by the Gregory Blvd Dam (completed 1907), built primarily for other on the TR-BLUE RIVER; earth-type dam, 29 ft tall.
- Surface area
- 6 ac
- Normal storage
- 60 ac-ft
- Max storage
- 93 ac-ft
- Drainage area
- 830 sq mi
- Hazard class
- Low
- Owner
- BRD OF PRKS+REC COMMISSN
All listed purposes: Other;Recreation.
Source: USACE National Inventory of Dams, NID ID MO20147 · Operator website · Matched by proximity (0.13 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_7629.00 · 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: 2024-09-05
Monitoring stations: 1