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F

Private Pond

Dane County, WisconsinLimited DataEutrophic

Private Pond earns an F: phosphorus readings still being added and clarity at 2.8 ft signal heavy nutrient loading from the surrounding watershed. Clarity, phosphorus, and chlorophyll-a all rate similarly, so there is no obvious single lever to pull on watershed management.

A TSI in the eutrophic range signals a lake doing what nutrient-loaded waters do — supporting an active algal community at the cost of clear water. 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. Private Pond sits at rank 12 of 21 in Dane County, in the lower half of the local distribution.

Private Pond has no invasive species recorded in Wisconsin state databases as of 2020, though prevention practices still apply at all access points. The state fisheries records do not list documented species for Private Pond, which usually reflects a lack of formal fisheries survey work rather than an empty lake. Monitoring depth is thin here: the LakeGrade rubric is applied to a small number of sample years, and the grade will be revised as more data accumulates.

Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2020-08-12. Grade methodology: LakeGrade methodology.

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Swimming Safety

Avoid swimming, very poor water quality, potential algae toxins

Water Quality Grade: F, Very Poor

Very murky, less than 2.8 ft of visibility. Trophic State Index: 63.

MetricValueGrade
Water Clarity (Secchi Depth)2.8 ftF
PhosphorusNo data
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)63Eutrophic

High nutrients, frequent algae, reduced clarity

Location

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County Ranking

Ranked #12 of 21 lakes in Dane County

Nearby Lakes in Dane County

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: 2020-08-12

Monitoring stations: 1

Where to stay near Private Pond

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