Calef Pond
Rockingham County, New Hampshire30 acresView mapDirections
No nutrient or algae sampling on record from NHDES for this lake.
- Impaired · Mercury
- 7 ft max depth
Calef Pond in Rockingham County, New Hampshire has water-quality measurements published by NHDES, shown here as reported. Maximum depth: 7 ft. Surface area: 30 acres.
Calef Pond is a 30-acre lake in Rockingham County, New Hampshire with a maximum depth of 7 feet (4-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. Calef Pond is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury. Check local advisories before you swim.
Whether Calef 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 Calef Pond
These are the measurements NHDES publishes for Calef 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.
Ask about Calef Pond
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
7 ft
Average depth
4.3 ft
Surface area
30 acres
Shoreline
1.7 mi
The depth above comes from a bathymetric survey of this lake, not from a regional estimate.
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Fishing Calef Pond
EPA Impairment Status
Calef Pond 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 NHLAK700060703-01 · Official waterbody report
Nearby Lakes in Rockingham County
Frequently asked questions about Calef Pond
Where is Calef Pond?
- Calef Pond is a lake in Rockingham County, New Hampshire. Its water-quality measurements are published by NHDES and shown on this page as reported.
What is the water quality of Calef Pond?
- Calef Pond in Rockingham County, New Hampshire has water-quality measurements published by NHDES, shown here as reported. Maximum depth: 7 ft. Surface area: 30 acres.
Is Calef Pond safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Calef Pond is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury. Check local advisories before you swim.
How deep is Calef Pond?
- Calef Pond has a maximum depth of 7 feet and an average depth of 4.3 feet. The lake covers 30 acres.
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Where this data comes from
Measurements for Calef 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