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LakeQuality
F

Manor Woods Pond

Olmsted County, MinnesotaLimited DataEutrophic

Manor Woods Pond earns an F: phosphorus readings still being added and clarity at 2.5 ft signal heavy nutrient loading from the surrounding watershed. Sub-grades cluster within a single letter of each other, which usually means the lake is in stable trophic balance rather than fighting one specific stressor.

At a TSI of 64, Manor Woods Pond reads as eutrophic — nutrient-rich enough that summer algal growth and reduced clarity are expected, not unusual. 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 the 5 graded lakes of Olmsted County, Manor Woods Pond sits at rank 5, near the bottom of the county list.

No invasive species are currently listed at Manor Woods Pond — the lake remains off the Minnesota infested-waters roster. The state fisheries records do not list documented species for Manor Woods Pond, which usually reflects a lack of formal fisheries survey work rather than an empty lake. No formal public access is documented at Manor Woods Pond — most use is by shoreline residents and their guests. 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, Minnesota DNR LakeFinder, last sampled 2024-09-27. Grade methodology: LakeGrade methodology.

Swimming Safety

Avoid swimming, very poor water quality, potential algae toxins

Water Quality Grade: F, Very Poor

Very murky, less than 2.5 ft of visibility. Trophic State Index: 64.

MetricValueGrade
Water Clarity (Secchi Depth)2.5 ftF
PhosphorusNo data
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)64Eutrophic

High nutrients, frequent algae, reduced clarity

Water Quality Trend: Stable

Based on 3 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Stable0 m/yr3

Ice Season

Historical ice data from Minnesota DNR (6 observations).

Typical Ice-Out
Mar 18
EarliestLatest
Ice-Out2024-02-27 (2024)2023-04-08 (2023)
Ice-In2022-11-20 (2022)2024-12-01 (2024)

Most recent ice-out: 2026-03-22

Location

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County Ranking

Ranked #5 of 5 lakes in Olmsted County

Nearby Lakes in Olmsted County

Data Sources

Water quality data from the EPA Water Quality Portal

Grading methodology based on Metropolitan Council standards

Ice data from Minnesota DNR Climate

Most recent sample: 2024-09-27

Monitoring stations: 1