Beaver Lake is a productive, nutrient-rich eutrophic lake in Benton County, Arkansas. Water quality is graded C based on 3 sampling years through 2021. Compared to the 13 other monitored lakes in Benton County, Beaver Lake ranks #9 for water quality.
Source: EPA Water Quality Portal sampling records, Arkansas DNR, last sampled 2021-10-05. 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 4.6 ft. Phosphorus level: 25 µg/L. Chlorophyll-a: 9.1 µg/L. Trophic State Index: 53.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 4.6 ft | D |
| Phosphorus | 25 µg/L | B |
| Chlorophyll-a (Algae) | 9.1 µg/L | B |
| Trophic State Index (TSI) | 53 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Beaver Lake
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Fishing Beaver Lake
Location
County Ranking
Ranked #9 of 14 lakes in Benton County
Nearby Lakes in Benton County
Explore Beaver Lake across LakeGrade
More Arkansas Lake Rankings
Other Grade C Lakes in Arkansas
Eutrophic Lakes in Arkansas
More records, surveys & data sources
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2021-10-05
Monitoring stations: 5