Lake Elfendahl
Hoonah-Angoon County, Alaska890 acresView mapDirections
No nutrient or algae sampling on record from Alaska DEC for this lake.
- 105 ft mean depth (modelled)
Lake Elfendahl in Hoonah-Angoon County, Alaska has water-quality measurements published by Alaska DEC, shown here as reported. Surface area: 890 acres.
Lake Elfendahl is a 890-acre lake in Hoonah-Angoon County, Alaska with an estimated average depth of about 105 feet.
Source: EPA Water Quality Portal sampling records, your state environmental agency. 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 Lake Elfendahl is safe to swim in today is a call for the Alaska Department of Environmental Conservation and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Lake Elfendahl
These are the measurements Alaska DEC publishes for Lake Elfendahl, 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.
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Answers come straight from the public measurements and survey records on this page.
Lake Details
Mean depth
~105 ft est.
Surface area
890 acres
Depth marked “est.” is a modeled estimate from HydroLAKES, not a measured survey. Alaska has not published bathymetry for Lake Elfendahl.
Lake Size & Watershed
Watershed (drainage) area
7 sq mi
HydroLAKES / HydroSHEDS
Mean depth
~105 ft est.
Modelled from terrain, not sounded
Shoreline
7 mi
HydroLAKES / HydroSHEDS
Elevation
279 ft
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth here is modelled, not surveyed — HydroLAKES v1.0 estimates lake depth from surrounding terrain rather than from soundings. Treat it as an approximation, and prefer a state bathymetric survey where one exists.
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Frequently asked questions about Lake Elfendahl
Where is Lake Elfendahl?
- Lake Elfendahl is a lake in Hoonah-Angoon County, Alaska. Its water-quality measurements are published by Alaska DEC and shown on this page as reported.
What is the water quality of Lake Elfendahl?
- Lake Elfendahl in Hoonah-Angoon County, Alaska has water-quality measurements published by Alaska DEC, shown here as reported. Surface area: 890 acres.
Is Lake Elfendahl safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Lake Elfendahl?
- No published bathymetric survey covers Lake Elfendahl, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 105 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate. The lake covers 890 acres.
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Where this data comes from
Measurements for Lake Elfendahl come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.
Other records on this page
Lake size & watershed from HydroLAKES (HydroSHEDS)