East Fork Reservoir
Fergus County, Montana90 acresView mapDirections
No nutrient or algae sampling on record from Montana DEQ for this lake.
East Fork Reservoir in Fergus County, Montana has water-quality measurements published by Montana DEQ, shown here as reported. Surface area: 90 acres.
East Fork Reservoir is a 90-acre lake in Fergus County, Montana.
Source: EPA Water Quality Portal sampling records, Montana 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 East Fork Reservoir is safe to swim in today is a call for the Montana Department of Environmental Quality and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for East Fork Reservoir
These are the measurements Montana DEQ publishes for East Fork 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 East Fork Reservoir
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
90 acres
Shoreline
1.8 mi
No bathymetric survey has been published for East Fork Reservoir, so its depth is not documented here.
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Frequently asked questions about East Fork Reservoir
Where is East Fork Reservoir?
- East Fork Reservoir is a lake in Fergus County, Montana. Its water-quality measurements are published by Montana DEQ and shown on this page as reported.
What is the water quality of East Fork Reservoir?
- East Fork Reservoir in Fergus County, Montana has water-quality measurements published by Montana DEQ, shown here as reported. Surface area: 90 acres.
Is East Fork 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 East Fork Reservoir come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.