Mallard Marsh
Pend Oreille County, Washington36 acresView mapDirections
No nutrient or algae sampling on record from Washington Ecology for this lake.
Mallard Marsh in Pend Oreille County, Washington has water-quality measurements published by Washington Ecology, shown here as reported. Surface area: 36 acres.
Mallard Marsh is a 36-acre lake in Pend Oreille County, Washington.
Source: EPA Water Quality Portal sampling records, WA Ecology. 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 Washington State Department of Ecology 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 Washington Ecology 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
36 acres
Shoreline
1.1 mi
No bathymetric survey has been published for Mallard Marsh, so its depth is not documented here.
Stays via Stay22
Stays near Mallard Marsh
Compare lakeside cabins, hotels, and vacation rentals near Mallard Marsh in Pend Oreille County, Washington — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
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Frequently asked questions about Mallard Marsh
Where is Mallard Marsh?
- Mallard Marsh is a lake in Pend Oreille County, Washington. Its water-quality measurements are published by Washington Ecology and shown on this page as reported.
What is the water quality of Mallard Marsh?
- Mallard Marsh in Pend Oreille County, Washington has water-quality measurements published by Washington Ecology, shown here as reported. Surface area: 36 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.