Mary Lake
Tuolumne County, California66 acresView mapDirections
No nutrient or algae sampling on record from SWRCB for this lake.
- Limited data
Mary Lake in Tuolumne County, California has water-quality measurements published by SWRCB, shown here as reported. Surface area: 66 acres.
Mary Lake is a 66-acre lake in Tuolumne County, California.
Source: EPA Water Quality Portal sampling records, your state environmental agency. Methodology: how these readings are compared.
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Mary Lake is safe to swim in today is a call for the California State Water Resources Control Board and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Mary Lake
These are the measurements SWRCB publishes for Mary 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.
Ask about Mary Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
66 acres
Shoreline
1.5 mi
No bathymetric survey has been published for Mary Lake, so its depth is not documented here.
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Stays near Mary Lake
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Frequently asked questions about Mary Lake
Where is Mary Lake?
- Mary Lake is a lake in Tuolumne County, California. Its water-quality measurements are published by SWRCB and shown on this page as reported.
What is the water quality of Mary Lake?
- Mary Lake in Tuolumne County, California has water-quality measurements published by SWRCB, shown here as reported. Surface area: 66 acres.
Is Mary 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 Mary Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.