Hay Lake
Penobscot County, Maine626 acresView mapDirections
No nutrient or algae sampling on record from Maine DEP for this lake.
- 34 ft max depth
Hay Lake in Penobscot County, Maine has water-quality measurements published by Maine DEP, shown here as reported. Maximum depth: 34 ft. Surface area: 626 acres.
Hay Lake is a 626-acre lake in Penobscot County, Maine with a maximum depth of 34 feet (9-foot average).
Source: EPA Water Quality Portal sampling records, your state environmental agency. Methodology: how these readings are compared.
What Hay Lake is good for
From access and monitoring records, not editorial picks.
- Deep water34 ft surveyed max depth
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Hay Lake is safe to swim in today is a call for the Maine Department of Environmental Protection and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Hay Lake
These are the measurements Maine DEP publishes for Hay 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 Hay Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
34 ft
Average depth
9 ft
Surface area
626 acres
Shoreline
7.2 mi
The depth above comes from a bathymetric survey of this lake, not from a regional estimate.
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Fishing Hay Lake
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Frequently asked questions about Hay Lake
Where is Hay Lake?
- Hay Lake is a lake in Penobscot County, Maine. Its water-quality measurements are published by Maine DEP and shown on this page as reported.
What is the water quality of Hay Lake?
- Hay Lake in Penobscot County, Maine has water-quality measurements published by Maine DEP, shown here as reported. Maximum depth: 34 ft. Surface area: 626 acres.
Is Hay Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Hay Lake?
- Hay Lake has a maximum depth of 34 feet and an average depth of 9 feet. The lake covers 626 acres.
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Where this data comes from
Measurements for Hay Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.