Malheur Slough
Harney County, Oregon123 acresView mapDirections
No nutrient or algae sampling on record from Oregon DEQ for this lake.
Malheur Slough in Harney County, Oregon has water-quality measurements published by Oregon DEQ, shown here as reported. Surface area: 123 acres.
Malheur Slough is a 123-acre lake in Harney County, Oregon.
Source: EPA Water Quality Portal sampling records, Oregon DEQ. 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 Malheur Slough is safe to swim in today is a call for the Oregon Department of Environmental Quality and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Malheur Slough
These are the measurements Oregon DEQ publishes for Malheur Slough, 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 Malheur Slough
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
123 acres
No bathymetric survey has been published for Malheur Slough, so its depth is not documented here.
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Frequently asked questions about Malheur Slough
Where is Malheur Slough?
- Malheur Slough is a lake in Harney County, Oregon. Its water-quality measurements are published by Oregon DEQ and shown on this page as reported.
What is the water quality of Malheur Slough?
- Malheur Slough in Harney County, Oregon has water-quality measurements published by Oregon DEQ, shown here as reported. Surface area: 123 acres.
Is Malheur Slough 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 Malheur Slough come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.