Arnegard Dam Lake
McKenzie County, WisconsinLimited DataMesotrophic
Arnegard Dam Lake is a 24-acre mesotrophic lake in McKenzie County, ND. Water quality is graded A based on 1 sampling years through 2023. Compared to the 2 other monitored lakes in McKenzie County, Arnegard Dam Lake ranks #1 for water quality.
Source: EPA Water Quality Portal sampling records, local state DNR records, last sampled 2023-07-15. Grade methodology: LakeGrade methodology.
Swimming Safety
Excellent for swimming, crystal clear water with minimal algae
Water Quality Grade: A, Excellent
No clarity data. Chlorophyll-a: 3.1 µg/L. Trophic State Index: 42.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No data | |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | 3.1 µg/L | A |
| Trophic State Index (TSI) | 42 | Mesotrophic |
Moderate nutrients, good water quality
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 24.2 acres |
Location
County Ranking
Ranked #1 of 3 lakes in McKenzie County
Nearby Lakes in McKenzie County
More Wisconsin Lake Rankings
Other Grade A Lakes in Wisconsin
Mesotrophic Lakes in Wisconsin
Reservoir Info (USACE NID)
Arnegard Dam Lake is a man-made reservoir impounded by the Arnegard Dam (completed 1935), built primarily for recreation on the Timber Creek; earth-type dam, 14 ft tall and 1,700 ft long.
- Surface area
- 24.2 ac
- Normal storage
- 85.5 ac-ft
- Max storage
- 287.4 ac-ft
- Drainage area
- 18.8 sq mi
- Hazard class
- Low
- Owner
- McKenzie County WRB
Source: USACE National Inventory of Dams, NID ID ND00195 · Operator website
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2023-07-15
Monitoring stations: 3