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Robinson Pond

Jackson County, WisconsinOligotrophic

Robinson Pond sits at the top of the Wisconsin DNR grading rubric with an A, a mark reached by the cleanest lakes in Wisconsin. The three sub-grades — clarity, phosphorus, and chlorophyll-a — track close together, so no single parameter is dragging the average.

The lake's low TSI puts it in oligotrophic territory — the cleanest of the four trophic classes, but also the most vulnerable to nutrient-driven shifts. The lake's maximum depth is not yet documented in state morphometric records — context for its physical structure remains limited. Robinson Pond is small — 11 acres alongside partial shoreline records — which makes it sensitive to even modest changes in watershed runoff or recreational pressure. Robinson Pond ranks 1 of 4 in Jackson County, putting it in the upper tier of locally monitored lakes.

No invasive species are currently listed at Robinson Pond — the lake remains off the Wisconsin infested-waters roster. The state fisheries records do not list documented species for Robinson Pond, 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 2022-08-31. Grade methodology: LakeGrade methodology.

Swimming Safety

Excellent for swimming, crystal clear water with minimal algae

Water Quality Grade: A, Excellent

Crystal clear, you can see 18.9 ft down. Phosphorus level: 10.1 µg/L. Trophic State Index: 36.

MetricValueGrade
Water Clarity (Secchi Depth)18.9 ftA
Phosphorus10.1 µg/LA
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)36Oligotrophic

Low nutrients, clear water, excellent for swimming

Lake Details

CharacteristicValue
Surface Area11 acres

Location

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County Ranking

Ranked #1 of 4 lakes in Jackson County

Nearby Lakes in Jackson County

State Parks Near Robinson Pond

WI DNR Lake Profile

Authoritative data from the Wisconsin DNR LakePages. 1 station on file (most recent sample 2022).

Data Sources

Water quality data from the EPA Water Quality Portal

Grading methodology based on Metropolitan Council standards

Fish and recreation data from Wisconsin DNR Lakes

Most recent sample: 2022-08-31

Monitoring stations: 1