North Pond
Sullivan County, New Hampshire56 acresView mapDirections
No nutrient or algae sampling on record from NHDES for this lake.
- Impaired · Mercury
- 10 ft max depth
North Pond in Sullivan County, New Hampshire has water-quality measurements published by NHDES, shown here as reported. Maximum depth: 10 ft. Surface area: 56 acres.
North Pond is a 56-acre lake in Sullivan County, New Hampshire with a maximum depth of 10 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. North Pond is listed impaired under Clean Water Act §303(d) (IR 5) for mercury, pH / acidity. Check local advisories before you swim.
Whether North Pond 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 North Pond
These are the measurements NHDES publishes for North Pond, 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
Max depth
10 ft
Surface area
56 acres
Shoreline
1.8 mi
The depth above comes from a bathymetric survey of this lake, not from a regional estimate.
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Fishing North Pond
EPA Impairment Status
North Pond is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
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 NHLAK802010101-07 · Official waterbody report
Nearby Lakes in Sullivan County
Frequently asked questions about North Pond
Where is North Pond?
- North Pond 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 North Pond?
- North Pond in Sullivan County, New Hampshire has water-quality measurements published by NHDES, shown here as reported. Maximum depth: 10 ft. Surface area: 56 acres.
Is North Pond safe to swim in?
- Nutrient and algae readings are not a swimming clearance. North Pond is listed impaired under Clean Water Act §303(d) (IR 5) for mercury, pH / acidity. Check local advisories before you swim.
How deep is North Pond?
- North Pond has a maximum depth of 10 feet. The lake covers 56 acres.
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Where this data comes from
Measurements for North Pond 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