Mallard Marsh
Holt County, Missouri146 acresView mapDirections
No nutrient or algae sampling on record from Missouri DNR for this lake.
Mallard Marsh in Holt County, Missouri has water-quality measurements published by Missouri DNR, shown here as reported. Surface area: 146 acres.
Mallard Marsh is a 146-acre lake in Holt County, Missouri.
Source: EPA Water Quality Portal sampling records, Missouri DNR. Methodology: how these readings are compared.
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Mallard Marsh is safe to swim in today is a call for the Missouri Department of Natural Resources and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Mallard Marsh
These are the measurements Missouri DNR publishes for Mallard Marsh, 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 Mallard Marsh
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
146 acres
Shoreline
2.6 mi
No bathymetric survey has been published for Mallard Marsh, so its depth is not documented here.
Stays via Stay22
Stays near Mallard Marsh
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Frequently asked questions about Mallard Marsh
Where is Mallard Marsh?
- Mallard Marsh is a lake in Holt County, Missouri. Its water-quality measurements are published by Missouri DNR and shown on this page as reported.
What is the water quality of Mallard Marsh?
- Mallard Marsh in Holt County, Missouri has water-quality measurements published by Missouri DNR, shown here as reported. Surface area: 146 acres.
Is Mallard Marsh safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
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Where this data comes from
Measurements for Mallard Marsh come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.