Belleau Lake
Carroll County, New Hampshire188 acresView mapDirections
No nutrient or algae sampling on record from NHDES for this lake.
- Impaired · Mercury
- 19 ft max depth
Belleau Lake in Carroll County, New Hampshire has water-quality measurements published by NHDES, shown here as reported. Maximum depth: 19 ft. Surface area: 188 acres.
Belleau Lake is a 188-acre lake in Carroll County, New Hampshire with a maximum depth of 19 feet (12-foot average).
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. Belleau Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury, nuisance exotic species. Check local advisories before you swim.
Whether Belleau 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 Belleau Lake
These are the measurements NHDES publishes for Belleau 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 Belleau Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
19 ft
Average depth
12 ft
Surface area
188 acres
Shoreline
7.1 mi
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Fishing Belleau Lake
EPA Impairment Status
Belleau 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: Aquatic life, Fish consumption.
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit NHLAK600021001-03 · Official waterbody report
Nearby Lakes in Carroll County
Frequently asked questions about Belleau Lake
Where is Belleau Lake?
- Belleau Lake is a lake in Carroll County, New Hampshire. Its water-quality measurements are published by NHDES and shown on this page as reported.
What is the water quality of Belleau Lake?
- Belleau Lake in Carroll County, New Hampshire has water-quality measurements published by NHDES, shown here as reported. Maximum depth: 19 ft. Surface area: 188 acres.
Is Belleau Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Belleau Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury, nuisance exotic species. Check local advisories before you swim.
How deep is Belleau Lake?
- Belleau Lake has a maximum depth of 19 feet and an average depth of 12 feet. The lake covers 188 acres.
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Where this data comes from
Measurements for Belleau 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