Riley Lake
New Madrid County, Missouri33 acresView mapDirections
No nutrient or algae sampling on record from Missouri DNR for this lake.
Riley Lake in New Madrid County, Missouri has water-quality measurements published by Missouri DNR, shown here as reported. Surface area: 33 acres.
Riley Lake is a 33-acre lake in New Madrid 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 Riley Lake 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 Riley Lake
These are the measurements Missouri DNR publishes for Riley 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 Riley Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
33 acres
Shoreline
1.9 mi
No bathymetric survey has been published for Riley Lake, so its depth is not documented here.
Stays via Stay22
Stays near Riley Lake
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Frequently asked questions about Riley Lake
Where is Riley Lake?
- Riley Lake is a lake in New Madrid County, Missouri. Its water-quality measurements are published by Missouri DNR and shown on this page as reported.
What is the water quality of Riley Lake?
- Riley Lake in New Madrid County, Missouri has water-quality measurements published by Missouri DNR, shown here as reported. Surface area: 33 acres.
Is Riley Lake 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 Riley Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.