Lake Darling
Renville County, WisconsinMesotrophic
Lake Darling is a 9,655-acre mesotrophic lake in Renville County, ND. Water quality is graded B based on 2 sampling years through 2023. Compared to the 2 other monitored lakes in Renville County, Lake Darling ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, local state DNR records, last sampled 2023-07-16. Grade methodology: LakeGrade methodology.
Swimming Safety
Good for swimming, clear water with low algae levels
Water Quality Grade: B, Good
Moderate clarity, visible to about 9.8 ft. Chlorophyll-a: 6.5 µg/L. Trophic State Index: 47.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 9.8 ft | C |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | 6.5 µg/L | B |
| Trophic State Index (TSI) | 47 | Mesotrophic |
Moderate nutrients, good water quality
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 9.7K acres |
Location
County Ranking
Ranked #2 of 3 lakes in Renville County
Nearby Lakes in Renville County
More Wisconsin Lake Rankings
Other Grade B Lakes in Wisconsin
Mesotrophic Lakes in Wisconsin
Reservoir Info (USACE NID)
Lake Darling is a man-made reservoir impounded by the Lake Darling Dam (completed 1937), built primarily for fish and wildlife pond on the SOURIS RIVER; earth-type dam, 39 ft tall and 4,064 ft long.
- Surface area
- 9,655 ac
- Normal storage
- 108,894 ac-ft
- Max storage
- 200,583 ac-ft
- Drainage area
- 9,160 sq mi
- Hazard class
- High
- Owner
- US FISH AND WILDLIFE SERVICE
All listed purposes: Fish and Wildlife Pond;Recreation;Flood Risk Reduction.
Source: USACE National Inventory of Dams, NID ID ND00332 · Operator website
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2023-07-16
Monitoring stations: 2