East Arroda Lake is a 43-acre productive, nutrient-rich eutrophic lake in Oliver County, North Dakota with a maximum depth of 34 feet (12-foot average). Water quality is graded C based on 2 sampling years through 2023. The lake supports 3 documented fish species including Northern Pike, Black Crappie, and Yellow Perch. Public access is available with 1 public boat landing. Compared to the 2 other monitored lakes in Oliver County, East Arroda Lake ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, North Dakota DNR, last sampled 2023-10-17. Grade methodology: LakeGrade methodology.
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Swimming Safety
Generally safe for swimming, moderate water quality
Water Quality Grade: C, Fair
Murky, only visible to about 5.6 ft. Chlorophyll-a: 6.2 µg/L. Trophic State Index: 50.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 5.6 ft | D |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | 6.2 µg/L | B |
| Trophic State Index (TSI) | 50 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 33.6 ft |
| Average Depth | 11.7 ft |
| Surface Area | 43 acres |
| Shoreline Length | 1.4 mi |
| Public Access | Yes |
Where to stay near East Arroda Lake
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Fish Species
Click a species to see every graded lake where it is documented.
Fishing East Arroda Lake
Recreation & Access
Water Temperature
East Arroda Lake averages about 66°F at the surface in summer, usually warmest in Jun (about 67°F) and coldest in Oct (about 50°F). These are typical values by month — not a live reading.
Typical surface water temperature by month, from 12 field readings (2023–2023) via the EPA Water Quality Portal. See the full East Arroda Lake water temperature breakdown →
Location
County Ranking
Ranked #2 of 3 lakes in Oliver County
Cleaner Lakes Within 30 Miles
East Arroda Lake holds Grade C. 4 nearby lakes hold higher grades.
- AQacmainstfbk LakeMercer County · 20.3 mi · Two grade letters higher (C → A)
- BArroda LakeOliver County · 0.2 mi · Higher grade (C → B)
- BQacmainstdup LakeMercer County · 20.3 mi · Higher grade (C → B)
- BLake AudubonMcLean County · 24.9 mi · Higher grade (C → B)
Nearby Lakes in Oliver County
Explore East Arroda Lake across LakeGrade
Fish species and top-graded lakes across North Dakota
Fish species and best lakes in Oliver County
Species activity outlook by water temperature and season
Where to stay at North Dakota's top lakes, each with its grade
High nutrients, frequent algae, reduced clarity
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Other Grade C Lakes in North Dakota
Eutrophic Lakes in North Dakota
More records, surveys & data sources
Reservoir Info (USACE NID)
East Arroda Lake is a man-made reservoir impounded by the Daub Dam (completed 1971), built primarily for recreation on the Missouri-TR; earth-type dam, 79 ft tall and 1,620 ft long.
- Surface area
- 43.4 ac
- Normal storage
- 732 ac-ft
- Max storage
- 1,346 ac-ft
- Drainage area
- 6.2 sq mi
- Hazard class
- Significant
- Owner
- ND Game & Fish
Source: USACE National Inventory of Dams, NID ID ND00372 · Operator website · Matched by proximity (0.23 km)
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Depth, fish, and access data from North Dakota Game & Fish
Public boat-access points from the USGS National Boat Ramps inventory
Most recent sample: 2023-10-17
Monitoring stations: 1