Greenwood Reservoir
Marquette County, Michigan107 acresView mapDirections
No nutrient or algae sampling on record from EGLE for this lake.
- Impaired · Mercury
Greenwood Reservoir in Marquette County, Michigan has water-quality measurements published by EGLE, shown here as reported. Surface area: 107 acres.
Greenwood Reservoir is a 107-acre lake in Marquette 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. Greenwood Reservoir is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury. Check local advisories before you swim.
Whether Greenwood Reservoir 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 Greenwood Reservoir
These are the measurements EGLE publishes for Greenwood Reservoir, 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 Greenwood Reservoir
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
107 acres
Shoreline
3.3 mi
No bathymetric survey has been published for Greenwood Reservoir, so its depth is not documented here.
Stays via Stay22
Stays near Greenwood Reservoir
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Fishing Greenwood Reservoir
EPA Impairment Status
Greenwood Reservoir 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 MI040301100105-02 · Official waterbody report
Nearby Lakes in Marquette County
Frequently asked questions about Greenwood Reservoir
Where is Greenwood Reservoir?
- Greenwood Reservoir is a lake in Marquette County, Michigan. Its water-quality measurements are published by EGLE and shown on this page as reported.
What is the water quality of Greenwood Reservoir?
- Greenwood Reservoir in Marquette County, Michigan has water-quality measurements published by EGLE, shown here as reported. Surface area: 107 acres.
Is Greenwood Reservoir safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Greenwood Reservoir 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 Greenwood Reservoir 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