Star Lake
Sullivan County, New Hampshire65 acresView mapDirections
No nutrient or algae sampling on record from NHDES for this lake.
- Impaired · Mercury
- 61 ft max depth
Star Lake in Sullivan County, New Hampshire has water-quality measurements published by NHDES, shown here as reported. Maximum depth: 61 ft. Surface area: 65 acres.
Star Lake is a 65-acre lake in Sullivan County, New Hampshire with a maximum depth of 61 feet (19-foot average).
Source: EPA Water Quality Portal sampling records, your state environmental agency. Methodology: how these readings are compared.
What Star Lake is good for
From access and monitoring records, not editorial picks.
- Deep water61 ft surveyed max depth
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Star Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury. Check local advisories before you swim.
Whether Star Lake is safe to swim in today is a call for the New Hampshire Department of Environmental Services and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Star Lake
These are the measurements NHDES publishes for Star 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 Star Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
61 ft
Average depth
18.7 ft
Surface area
65 acres
Shoreline
1.7 mi
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Stays near Star Lake
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Fishing Star Lake
EPA Impairment Status
Star Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 4A).
Causes of impairment
Designated uses not supporting: Fish consumption.
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit NHLAK801060402-01 · Official waterbody report
Nearby Lakes in Sullivan County
Frequently asked questions about Star Lake
Where is Star Lake?
- Star Lake is a lake in Sullivan County, New Hampshire. Its water-quality measurements are published by NHDES and shown on this page as reported.
What is the water quality of Star Lake?
- Star Lake in Sullivan County, New Hampshire has water-quality measurements published by NHDES, shown here as reported. Maximum depth: 61 ft. Surface area: 65 acres.
Is Star Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Star Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury. Check local advisories before you swim.
How deep is Star Lake?
- Star Lake has a maximum depth of 61 feet and an average depth of 18.7 feet. The lake covers 65 acres.
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Where this data comes from
Measurements for Star Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database