East Arroda Lake
Oliver County, North Dakota43 acresView mapDirections
ND DEQ publishes the water-quality measurements for East Arroda Lake. Here is what has been measured.
- Eutrophic
- Public access
- Limited data
East Arroda Lake in Oliver County, North Dakota has water-quality measurements published by ND DEQ, shown here as reported. Water clarity: 5.6 ft visibility. Phosphorus: 56 µg/L. Chlorophyll-a (algae): 6.2 µg/L. Surface area: 43.4 acres.
East Arroda Lake is a 43-acre productive, nutrient-rich eutrophic lake in Oliver County, North Dakota. Limited fish-species data available. Public access is available with 1 public boat landing. Compared to the 2 other monitored lakes in Oliver County, East Arroda Lake ranks #1 for water quality.
Source: EPA Water Quality Portal sampling records, NDDEQ, last sampled 2023-10-17. Methodology: how these readings are compared.
What East Arroda Lake is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
Swimming conditions
Readings onlyLimited data
Based on clarity and algae readings from past sampling — there is no live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether East Arroda Lake is safe to swim in today is a call for the North Dakota Department of Environmental Quality and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for East Arroda Lake
These are the measurements ND DEQ publishes for East Arroda Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Murky, only visible to about 5.6 ft. Phosphorus 56 µg/L. Chlorophyll-a 6.2 µg/L. TSI 54.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 5.6ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 56µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| Chlorophyll-a (algae) | 6.2µg/L | Measured, not scored The green pigment in algae — a direct measure of how much algae is in the water. |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 54 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about East Arroda Lake
Answers come straight from the public measurements and survey records on this page.
Water Temperature
East Arroda Lake typically sits around 50°F at the surface in October. Summer average is about 66°F. Usually warmest in Jun (about 67°F) and coldest in Oct (about 50°F). These are typical values by month — not a live reading.
Column height runs from this lake’s coldest month (50°F) to its warmest (67°F).
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 →
Lake Details
Surface area
43 acres
Public access
Yes
Listed by ND DEQ
No bathymetric survey has been published for East Arroda Lake, so its depth is not documented here.
Recreation & Access
- East Arroda DamPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Stays via Stay22
Stays near East Arroda Lake
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Top-rated places to stay near East Arroda Lake
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Fishing East Arroda Lake
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)
Nearby Lakes in Oliver County
Frequently asked questions about East Arroda Lake
Where is East Arroda Lake?
- East Arroda Lake is a lake in Oliver County, North Dakota. Its water-quality measurements are published by ND DEQ and shown on this page as reported.
What is the water quality of East Arroda Lake?
- East Arroda Lake in Oliver County, North Dakota has water-quality measurements published by ND DEQ, shown here as reported. Water clarity: 5.6 ft visibility. Phosphorus: 56 µg/L. Chlorophyll-a (algae): 6.2 µg/L. Surface area: 43.4 acres.
Is East Arroda Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
What is the water temperature of East Arroda Lake?
- East Arroda Lake typically sits around 50°F at the surface in October, from 12 EPA Water Quality Portal field readings (2023–2023). That is a typical value for the month, not a live reading.
Are there boat ramps on East Arroda Lake?
- East Arroda Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include East Arroda Dam. Public access is listed as yes.
Can I fish at East Arroda Lake?
- East Arroda Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by North Dakota's fish and wildlife agency, so check its current regulations before you go.
Explore East Arroda Lake across LakeQuality
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Where this data comes from
20 measurements from 1 monitoring station, 2023. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- North Dakota Department Of Environmental Quality
21NDHDWQ_WQX20 samples · 2023
Analytical methods
- Phosphorus by Colorimetry
- 447.0 ~ EPA; Chlorophyll a and b in phytoplankton by HPLC/UV
- 4500 NO3 E ~ Nitrate in Water- Cadmium Reduction
Monitoring station identifiers (1)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.
Other records on this page
Depth, fish, and access data from North Dakota Game & Fish
Named boat-access points from the USGS National Boat Ramps inventory