Lake Arthur
Lake Arthur in Polk County, Minnesota is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 119 acres.
- Area
- 119 acres
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Why Lake Arthur has no grade
We grade a lake only when the monitoring record supports a letter: at least three phosphorus or chlorophyll-a samples in the last ten years, scored against EPA National Lakes Assessment thresholds for this lake’s ecoregion. For Lake Arthur, no water-quality sampling on record for this lake.
Not Rated is not an F. It is EPA Integrated Reporting Category 3 — insufficient information. The water here may be excellent or poor; nobody has measured enough of it to say. Everything below that has been measured is still reported on this page.
Sampling is run by MPCA and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Lake Arthur is a 119-acre lake in Polk County, Minnesota.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled recent years. Grade methodology: LakeQuality methodology.
Watch Lake Arthur water quality
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Swimming Safety
Not ratedElevated nutrients
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Lake Arthur
These readings exist but are not enough for an A–F grade — see why.
No clarity data. Trophic State Index: undefined.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) |
Where to stay near Lake Arthur
Compare lakeside cabins, hotels, and vacation rentals near Lake Arthur in Polk County, Minnesota — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
Top-rated places to stay near Lake Arthur
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 119 acres |
No bathymetric survey has been published for Lake Arthur, so its depth is not documented here.
Fishing Lake Arthur
Nearby Lakes in Polk County
Frequently asked questions about Lake Arthur
Where is Lake Arthur?
- Lake Arthur is a lake in Polk County, Minnesota. LakeQuality has not rated this lake (UNRATED) — no water-quality sampling on record for this lake.
What is the water quality grade for Lake Arthur?
- Lake Arthur in Polk County, Minnesota is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 119 acres.
Is Lake Arthur safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Lake Arthur is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
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Where this data comes from
Measurements for Lake Arthur come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.
Other records on this page
Lake details from Minnesota DNR LakeFinder