What is the water quality grade for Van Etten Lake North Central Basin; Oscoda Township?

Van Etten Lake North Central Basin; Oscoda Township in Iosco County, Wisconsin received a water quality grade of C (Fair). Water clarity: 5.5 ft visibility. Chlorophyll-a (algae): 10.8 µg/L.

Is Van Etten Lake North Central Basin; Oscoda Township safe to swim in?

Generally safe for swimming, moderate water quality. Van Etten Lake North Central Basin; Oscoda Township has an overall water quality grade of C. Algae concentration (chlorophyll-a) is 10.8 µg/L. Always check local health department advisories before swimming.

Van Etten Lake North Central Basin; Oscoda Township

Iosco County, WisconsinEutrophic

Van Etten Lake North Central Basin; Oscoda Township is a productive, nutrient-rich eutrophic lake in Iosco County, MI. Water quality is graded C based on 2 sampling years through 2023. Compared to the 7 other monitored lakes in Iosco County, Van Etten Lake North Central Basin; Oscoda Township ranks #7 for water quality.

Source: EPA Water Quality Portal sampling records, local state DNR records, last sampled 2023-09-10. Grade methodology: LakeGrade methodology.

Swimming Safety

Generally safe for swimming, moderate water quality

Water Quality Grade: C, Fair

Murky, only visible to about 5.5 ft. Chlorophyll-a: 10.8 µg/L. Trophic State Index: 53.

Metric	Value	Grade
Water Clarity (Secchi Depth)	5.5 ft	D
Phosphorus	No data
Chlorophyll-a (Algae)	10.8 µg/L	C
Trophic State Index (TSI)	53	Eutrophic

High nutrients, frequent algae, reduced clarity

Location

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County Ranking

Ranked #7 of 8 lakes in Iosco County

Cleaner Lakes Within 30 Miles

Van Etten Lake North Central Basin; Oscoda Township holds Grade C. 3 nearby lakes hold higher grades.

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Other Grade C Lakes in Wisconsin

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Eutrophic Lakes in Wisconsin

Kimball Lake Community College Pond Pentwater Lake Northwest Basin; Pentwater Township Saginaw Bay About 8 Mile East of Pinconning River Lake

EPA Impairment Status

Van Etten Lake North Central Basin; Oscoda Township is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).

Causes of impairment

MercuryNutrients (phosphorus, nitrogen)PFASPCBs

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

Source: EPA ATTAINS assessment unit MI040700070609-04 · Official waterbody report · Matched by proximity (0.95 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: 2023-09-10

Monitoring stations: 1