Mission Bay Lake
Benson County, North DakotaView mapDirections
ND DEQ publishes the water-quality measurements for Mission Bay Lake. Here is what has been measured.
- Eutrophic
- Limited data
Mission Bay Lake in Benson County, North Dakota has water-quality measurements published by ND DEQ, shown here as reported. Phosphorus: 31.9 µg/L.
Mission Bay Lake is a productive, nutrient-rich eutrophic lake in Benson County, North Dakota. Compared to the 4 other monitored lakes in Benson County, Mission Bay Lake ranks #4 for water quality.
Source: EPA Water Quality Portal sampling records, NDDEQ, last sampled 2022-08-25. Methodology: how these readings are compared.
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 Mission Bay 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 Mission Bay Lake
These are the measurements ND DEQ publishes for Mission Bay Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data. Phosphorus 31.9 µg/L. TSI 54.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | No reading How deep a black-and-white disk stays visible from the surface. Higher is clearer. | |
| Total phosphorus | 31.9µg/L | Good GoodFairPoor |
| Chlorophyll-a (algae) | No reading 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
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Nearby Lakes in Benson County
Frequently asked questions about Mission Bay Lake
Where is Mission Bay Lake?
- Mission Bay Lake is a lake in Benson 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 Mission Bay Lake?
- Mission Bay Lake in Benson County, North Dakota has water-quality measurements published by ND DEQ, shown here as reported. Phosphorus: 31.9 µg/L.
Is Mission Bay Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
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Where this data comes from
8 measurements from 1 monitoring station, 2022. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Spirit Lake Tribal EPA Programs
SPIRITLK8 samples · 2022
Analytical methods
- Phosphorus by Colorimetry
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.