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LakeQuality
C

Lake Independence

Marquette County, WisconsinLimited DataMesotrophic

Lake Independence is a 2,071-acre mesotrophic lake in Marquette County, MI. Water quality is graded C based on 1 sampling years through 2022. Compared to the 9 other monitored lakes in Marquette County, Lake Independence ranks #10 for water quality.

Source: EPA Water Quality Portal sampling records, local state DNR records, last sampled 2022-09-10. Grade methodology: LakeGrade methodology.

Swimming Safety

Generally safe for swimming, moderate water quality

Water Quality Grade: C, Fair

Moderate clarity, visible to about 9 ft. Trophic State Index: 45.

MetricValueGrade
Water Clarity (Secchi Depth)9 ftC
PhosphorusNo data
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)45Mesotrophic

Moderate nutrients, good water quality

Lake Details

CharacteristicValue
Surface Area2.1K acres

Location

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County Ranking

Ranked #10 of 10 lakes in Marquette County

Cleaner Lakes Within 30 Miles

Lake Independence holds Grade C. One nearby lake has a higher grade.

See full comparison →

Nearby Lakes in Marquette County

Reservoir Info (USACE NID)

Lake Independence is a man-made reservoir impounded by the Lake Independence Dam (completed 1913), built primarily for recreation on the Iron River; earth-type dam, 14 ft tall and 150 ft long.

Surface area
2,071 ac
Normal storage
9,330 ac-ft
Max storage
16,100 ac-ft
Drainage area
95 sq mi
Hazard class
Low
Owner
Marquette County Drain Commissioner

Source: USACE National Inventory of Dams, NID ID MI00438 · Operator website

EPA Impairment Status

Lake Independence is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 4A).

Causes of impairment

Mercury

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

Source: EPA ATTAINS assessment unit MI040201050303-02 · Official waterbody report

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: 2022-09-10

Monitoring stations: 1