Sugar Creek Lake
Randolph County, WisconsinEutrophic
Sugar Creek Lake is a 323-acre productive, nutrient-rich eutrophic lake in Randolph County, MO. Water quality is graded D based on 3 sampling years through 2024. Compared to the 6 other monitored lakes in Randolph County, Sugar Creek Lake ranks #5 for water quality.
Source: EPA Water Quality Portal sampling records, local state DNR records, last sampled 2024-09-21. 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 2.5 ft of visibility. Phosphorus level: 45 µg/L. Chlorophyll-a: 22.7 µg/L. Trophic State Index: 61.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.5 ft | F |
| Phosphorus | 45 µg/L | C |
| Chlorophyll-a (Algae) | 22.7 µg/L | D |
| Trophic State Index (TSI) | 61 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 323 acres |
Location
County Ranking
Ranked #5 of 7 lakes in Randolph County
Cleaner Lakes Within 30 Miles
Sugar Creek Lake holds Grade D. 5 nearby lakes hold higher grades.
- CRothwell LakeRandolph County · 4 mi · Higher grade (D → C)
- COld ReservoirRandolph County · 4.1 mi · Higher grade (D → C)
- DSugar Creek LakeRandolph County · 1 mi · Higher overall water quality score
- CThomas Hill Lake @ Hwy TMacon County · 12.9 mi · Higher grade (D → C)
- DCedar LakeRandolph County · 6.4 mi · Higher overall water quality score
Nearby Lakes in Randolph 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)
Sugar Creek Lake is a man-made reservoir impounded by the Sugar Creek Lake Dam (completed 1957), built primarily for water supply on the SUGAR CREEK; earth-type dam, 49 ft tall and 1,030 ft long.
- Surface area
- 323 ac
- Normal storage
- 2,250 ac-ft
- Max storage
- 4,748 ac-ft
- Drainage area
- 10.55 sq mi
- Hazard class
- Low
- Owner
- CITY OF MOBERLY
Source: USACE National Inventory of Dams, NID ID MO10005 · Operator website
EPA Impairment Status
Sugar Creek 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_7166.00 · 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: 2024-09-21
Monitoring stations: 1