Granite Lake
Ketchikan Gateway County, Alaska26 acresView mapDirections
No nutrient or algae sampling on record from Alaska DEC for this lake.
Granite Lake in Ketchikan Gateway County, Alaska has water-quality measurements published by Alaska DEC, shown here as reported. Surface area: 26 acres.
Granite Lake is a 26-acre lake in Ketchikan Gateway County, Alaska.
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 Granite Lake 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 Granite Lake
These are the measurements Alaska DEC publishes for Granite 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 Granite Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
26 acres
No bathymetric survey has been published for Granite Lake, so its depth is not documented here.
Stays via Stay22
Stays near Granite Lake
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Fishing Granite Lake
Nearby Lakes in Ketchikan Gateway County
Frequently asked questions about Granite Lake
Where is Granite Lake?
- Granite Lake is a lake in Ketchikan Gateway County, Alaska. Its water-quality measurements are published by Alaska DEC and shown on this page as reported.
What is the water quality of Granite Lake?
- Granite Lake in Ketchikan Gateway County, Alaska has water-quality measurements published by Alaska DEC, shown here as reported. Surface area: 26 acres.
Is Granite 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 Granite Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.