B

Chapel Lake

Alger County, WisconsinMesotrophic

Chapel Lake is a mesotrophic lake in Alger County, MI. Water quality is graded B based on 2 sampling years through 2024. Compared to the 12 other monitored lakes in Alger County, Chapel Lake ranks #11 for water quality.

Source: EPA Water Quality Portal sampling records, local state DNR records, last sampled 2024-08-19. Grade methodology: LakeGrade methodology.

Swimming Safety

Good for swimming, clear water with low algae levels

Water Quality Grade: B, Good

Moderate clarity, visible to about 7.9 ft. Phosphorus level: 23.5 µg/L. Trophic State Index: 49.

Metric	Value	Grade
Water Clarity (Secchi Depth)	7.9 ft	C
Phosphorus	23.5 µg/L	B
Chlorophyll-a (Algae)	No data
Trophic State Index (TSI)	49	Mesotrophic

Moderate nutrients, good water quality

Location

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County Ranking

Ranked #11 of 13 lakes in Alger County

Cleaner Lakes Within 30 Miles

Chapel Lake holds Grade B. 3 nearby lakes hold higher grades.

See full comparison →

Nearby Lakes in Alger County

Tie Lake; Deep Basin; Munising Township

Csmi 2021 Station Med Lake

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 B Lakes in Wisconsin

Middle Lake; Elba Township; Section 13

Lapeer County · Clarity: 9.5 ft

Livingston County · Clarity: 13 ft

Bear Lake East Basin; Pleasanton Township

Manistee County · Clarity: 11 ft

Lake County · Clarity: 14 ft

Cass County · Clarity: 10.5 ft

Byram Lake West Central Basin; Fenton Township

Genesee County · Clarity: 10 ft

Mesotrophic Lakes in Wisconsin

Middle Lake; Elba Township; Section 13 Portage Lake Shavehead Lake East Basin; Porter Township Chippewa Lake Northeast Basin; Chippewa Township

Data Sources

Water quality data from the EPA Water Quality Portal

Grading methodology based on Metropolitan Council standards

Most recent sample: 2024-08-19

Monitoring stations: 1