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LakeQuality
D

Little Platte Lake

Benzie County, WisconsinLimited DataEutrophic

Little Platte Lake is a productive, nutrient-rich eutrophic lake in Benzie County, MI. Water quality is graded D based on 1 sampling years through 2021. Compared to the 34 other monitored lakes in Benzie County, Little Platte Lake ranks #35 for water quality.

Source: EPA Water Quality Portal sampling records, local state DNR records, last sampled 2021-09-09. Grade methodology: LakeGrade methodology.

Swimming Safety

Swimming not recommended, poor water quality with high algae risk

Water Quality Grade: D, Poor

Murky, only visible to about 6.5 ft. Trophic State Index: 50.

MetricValueGrade
Water Clarity (Secchi Depth)6.5 ftD
PhosphorusNo data
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)50Eutrophic

High nutrients, frequent algae, reduced clarity

Location

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County Ranking

Ranked #35 of 35 lakes in Benzie County

Cleaner Lakes Within 30 Miles

Little Platte Lake holds Grade D. 5 nearby lakes hold higher grades.

See full comparison →

Nearby Lakes in Benzie County

A
Sanford Lake
Benzie County
A
Crystal Lake Central Basin; Lake Township Section 12
Benzie County
A
Round Lake
Benzie County
A
Crystal Lake
Benzie County
A
Mi41m Lake
Benzie County
A
Round Lake
Benzie County

More Wisconsin Lake Rankings

Cleanest lakes in Wisconsin

Top 25 by overall water quality score

Best swimming lakes in Wisconsin

Grade A/B + low algae filter

Family fishing lakes in Wisconsin

Panfish-rich, public access

All Wisconsin lakes

Full state directory

Other Grade D Lakes in Wisconsin

Kimball Lake

Newaygo County · Clarity: 4.5 ft

Community College Pond

Chippewa County · Clarity: 1.5 ft

Little Beaver Lake

Alger County · Clarity: 6.2 ft

Van Etten Lake

Iosco County · Clarity: 5.5 ft

South Pond

Chippewa County · Clarity: 1.3 ft

Eagle Lake

Cass County · Clarity: 6 ft

Eutrophic Lakes in Wisconsin

Kimball LakeVan Etten Lake North Central Basin; Oscoda TownshipCommunity College PondPentwater Lake Northwest Basin; Pentwater Township

EPA Impairment Status

Little Platte Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).

Causes of impairment

MercuryPCBs

A Total Maximum Daily Load (TMDL) plan has been approved.

Source: EPA ATTAINS assessment unit MI040601040206-03 · Official waterbody report · Matched by proximity (2.25 km)

Data Sources

Water quality data from the EPA Water Quality Portal

Impairment status from EPA ATTAINS 303(d) database

Grading methodology based on Metropolitan Council standards

Most recent sample: 2021-09-09

Monitoring stations: 1