Mammoth Lake
Westmoreland County, Pennsylvania27 acresView mapDirections
No nutrient or algae sampling on record from PA DEP for this lake.
Mammoth Lake in Westmoreland County, Pennsylvania has water-quality measurements published by PA DEP, shown here as reported. Surface area: 27 acres.
Mammoth Lake is a 27-acre lake in Westmoreland County, Pennsylvania.
Source: EPA Water Quality Portal sampling records, PA DEP. 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 Mammoth Lake is safe to swim in today is a call for the Pennsylvania Department of Environmental Protection and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Mammoth Lake
These are the measurements PA DEP publishes for Mammoth 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 Mammoth Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
27 acres
Shoreline
1 mi
No bathymetric survey has been published for Mammoth Lake, so its depth is not documented here.
Stays via Stay22
Stays near Mammoth Lake
Compare lakeside cabins, hotels, and vacation rentals near Mammoth Lake in Westmoreland County, Pennsylvania — 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 Mammoth Lake
Where is Mammoth Lake?
- Mammoth Lake is a lake in Westmoreland County, Pennsylvania. Its water-quality measurements are published by PA DEP and shown on this page as reported.
What is the water quality of Mammoth Lake?
- Mammoth Lake in Westmoreland County, Pennsylvania has water-quality measurements published by PA DEP, shown here as reported. Surface area: 27 acres.
Is Mammoth 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 Mammoth Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.