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Benoit Lake

Burnett County, WisconsinMesotrophic

Benoit Lake earns an A — every scored parameter (clarity and phosphorus) rates among the best monitored waters in Burnett County. The two scored sub-grades — clarity and phosphorus — track close together, so neither one is dragging the average down.

Mesotrophic conditions dominate at Benoit Lake: enough nutrients for a healthy fishery, not so much that algal blooms become a chronic problem. The lake's maximum depth is not yet documented in state morphometric records — context for its physical structure remains limited. The lake's surface area is not consistently recorded across state datasets — physical context remains partial. Within Burnett County's 57 graded waters, Benoit Lake sits at rank 13, near the top of the local distribution.

Benoit Lake has no invasive species recorded in Wisconsin state databases as of 2023, though prevention practices still apply at all access points. The state fisheries records do not list documented species for Benoit Lake, which usually reflects a lack of formal fisheries survey work rather than an empty lake. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.

Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2023-08-22. Grade methodology: LakeGrade methodology.

Reviewed by LakeQuality Editorial Team · Updated

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Swimming Safety

Excellent for swimming, crystal clear water with minimal algae

Water Quality Grade: A, Excellent

Good clarity, visible to about 11.1 ft. Phosphorus level: 13.2 µg/L. Trophic State Index: 42.

MetricValueGrade
Water Clarity (Secchi Depth)11.1 ftB
Phosphorus13.2 µg/LA
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)42Mesotrophic

Moderate nutrients, good water quality

Water Quality Trend: Improving

Based on 4 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Improving+0.36 m/yr4
Phosphorus Stable+0.12 µg/L/yr4
See year-by-year chart →

Location

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County Ranking

Ranked #13 of 57 lakes in Burnett County

Nearby Lakes in Burnett County

Data Sources

Water quality data from the EPA Water Quality Portal

Grading methodology based on Metropolitan Council standards

Most recent sample: 2023-08-22

Monitoring stations: 1