Long Tom Reservoir
Elmore County, Idaho101 acresView mapDirections
No nutrient or algae sampling on record from Idaho DEQ for this lake.
Long Tom Reservoir in Elmore County, Idaho has water-quality measurements published by Idaho DEQ, shown here as reported. Surface area: 101 acres.
Long Tom Reservoir is a 101-acre lake in Elmore County, Idaho.
Source: EPA Water Quality Portal sampling records, IDEQ. 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 Long Tom Reservoir is safe to swim in today is a call for the Idaho Department of Environmental Quality and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Long Tom Reservoir
These are the measurements Idaho DEQ publishes for Long Tom Reservoir, 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 Long Tom Reservoir
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
101 acres
Shoreline
2.9 mi
No bathymetric survey has been published for Long Tom Reservoir, so its depth is not documented here.
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Frequently asked questions about Long Tom Reservoir
Where is Long Tom Reservoir?
- Long Tom Reservoir is a lake in Elmore County, Idaho. Its water-quality measurements are published by Idaho DEQ and shown on this page as reported.
What is the water quality of Long Tom Reservoir?
- Long Tom Reservoir in Elmore County, Idaho has water-quality measurements published by Idaho DEQ, shown here as reported. Surface area: 101 acres.
Is Long Tom Reservoir 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 Long Tom Reservoir come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.