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LakeQuality

Boise Lake

NR
Not yet rated
152 acres

Boise Lake in Brown County, Minnesota is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 152 acres.

Area
152 acres

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Why Boise Lake has no grade

We grade a lake only when the monitoring record supports a letter: at least three phosphorus or chlorophyll-a samples in the last ten years, scored against EPA National Lakes Assessment thresholds for this lake’s ecoregion. For Boise Lake, no water-quality sampling on record for this lake.

Not Rated is not an F. It is EPA Integrated Reporting Category 3 — insufficient information. The water here may be excellent or poor; nobody has measured enough of it to say. Everything below that has been measured is still reported on this page.

Sampling is run by MPCA and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.

Boise Lake is a 152-acre lake in Brown County, Minnesota.

Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled recent years. Grade methodology: LakeQuality methodology.

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Swimming Safety

Not rated

Elevated nutrients

Not rated for swimming — there is not enough monitoring data to judge this lake

Compare the safest swimming lakes near Mankato

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Water quality measurements for Boise Lake

These readings exist but are not enough for an A–F grade — see why.

No clarity data. Trophic State Index: undefined.

MetricValueGrade
Water Clarity (Secchi Depth)No recent samples
PhosphorusNo recent samples
Chlorophyll-a (Algae)No recent samples
Trophic State Index (TSI)

Where to stay near Boise Lake

Compare lakeside cabins, hotels, and vacation rentals near Boise Lake in Brown County, Minnesota — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.

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Lake Details

CharacteristicValue
Surface Area152 acres

No bathymetric survey has been published for Boise Lake, so its depth is not documented here.

Recreation & Access

1
Boat Landings
  • Boise LakePublic

Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps

Fishing Boise Lake

Nearby Lakes in Brown County

Frequently asked questions about Boise Lake

Where is Boise Lake?

Boise Lake is a lake in Brown County, Minnesota. LakeQuality has not rated this lake (UNRATED) — no water-quality sampling on record for this lake.

What is the water quality grade for Boise Lake?

Boise Lake in Brown County, Minnesota is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 152 acres.

Is Boise Lake safe to swim in?

Not rated for swimming — there is not enough monitoring data to judge this lake. Boise Lake is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.

Are there boat ramps on Boise Lake?

Boise Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Boise Lake.

Where this data comes from

Measurements for Boise Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.

Other records on this page

Lake details from Minnesota DNR LakeFinder

Named boat-access points from the USGS National Boat Ramps inventory