Fourth Lake
Montcalm County, Michigan45 acresView mapDirections
No nutrient or algae sampling on record from EGLE for this lake.
- Impaired · Mercury
Fourth Lake in Montcalm County, Michigan has water-quality measurements published by EGLE, shown here as reported. Surface area: 45 acres.
Fourth Lake is a 45-acre lake in Montcalm County, Michigan.
Source: EPA Water Quality Portal sampling records, EGLE. Methodology: how these readings are compared.
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Fourth Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury. Check local advisories before you swim.
Whether Fourth Lake is safe to swim in today is a call for the Michigan Department of Environment, Great Lakes, and Energy (EGLE) and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Fourth Lake
These are the measurements EGLE publishes for Fourth Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data. TSI undefined.
Ask about Fourth Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
45 acres
Shoreline
2.3 mi
No bathymetric survey has been published for Fourth Lake, so its depth is not documented here.
Stays via Stay22
Stays near Fourth Lake
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Fishing Fourth Lake
EPA Impairment Status
Fourth Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 4A).
Causes of impairment
Designated uses not supporting: Fish consumption.
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit MI040500060103-06 · Official waterbody report
Nearby Lakes in Montcalm County
Frequently asked questions about Fourth Lake
Where is Fourth Lake?
- Fourth Lake is a lake in Montcalm County, Michigan. Its water-quality measurements are published by EGLE and shown on this page as reported.
What is the water quality of Fourth Lake?
- Fourth Lake in Montcalm County, Michigan has water-quality measurements published by EGLE, shown here as reported. Surface area: 45 acres.
Is Fourth Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Fourth Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury. Check local advisories before you swim.
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Where this data comes from
Measurements for Fourth Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database