F

Creve Coeur Lake Nr. Boat Ramp

St. Louis County, WisconsinHypereutrophic

Creve Coeur Lake Nr. Boat Ramp is a highly nutrient-loaded hypereutrophic lake in St. Louis County, MO. Water quality is graded F based on 3 sampling years through 2020. Compared to the 8 other monitored lakes in St. Louis County, Creve Coeur Lake Nr. Boat Ramp ranks #7 for water quality.

Source: EPA Water Quality Portal sampling records, local state DNR records, last sampled 2020-10-05. Grade methodology: LakeGrade methodology.

Swimming Safety

Avoid swimming, very poor water quality, potential algae toxins

Water Quality Grade: F, Very Poor

Very murky, less than 1.2 ft of visibility. Phosphorus level: 100 µg/L. Chlorophyll-a: 92.9 µg/L. Trophic State Index: 73.

Metric	Value	Grade
Water Clarity (Secchi Depth)	1.2 ft	F
Phosphorus	100 µg/L	F
Chlorophyll-a (Algae)	92.9 µg/L	F
Trophic State Index (TSI)	73	Hypereutrophic

Very high nutrients, dense algae, poor clarity

Location

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County Ranking

Ranked #7 of 9 lakes in St. Louis County

Cleaner Lakes Within 30 Miles

Creve Coeur Lake Nr. Boat Ramp holds Grade F. 5 nearby lakes hold higher grades.

See full comparison →

Nearby Lakes in St. Louis County

Simpson Park Lake

St. Louis County

Simpson Park Lake

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St. Louis County

Creve Coeur Lake

St. Louis County

Koeneman Park Lake

St. Louis County

St. Louis County

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Hypereutrophic Lakes in Wisconsin

Hemitite Lake Stockton Lake Upstream of Hwy 123 Bridge Dairy Farm Lake No.1 Lake St. Louis Nr. Hwy 40

Data Sources

Water quality data from the EPA Water Quality Portal

Grading methodology based on Metropolitan Council standards

Most recent sample: 2020-10-05

Monitoring stations: 1