Cass Pond
Cheshire County, New Hampshire54 acresView mapDirections
No nutrient or algae sampling on record from NHDES for this lake.
- Impaired · Mercury
- 20 ft max depth
Cass Pond in Cheshire County, New Hampshire has water-quality measurements published by NHDES, shown here as reported. Maximum depth: 20 ft. Surface area: 54 acres.
Cass Pond is a 54-acre lake in Cheshire County, New Hampshire with a maximum depth of 20 feet (11-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. Cass Pond is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury, pH / acidity. Check local advisories before you swim.
Whether Cass 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 Cass Pond
These are the measurements NHDES publishes for Cass 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 Cass Pond
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
20 ft
Average depth
11.2 ft
Surface area
54 acres
Shoreline
2.1 mi
The depth above comes from a bathymetric survey of this lake, not from a regional estimate.
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Fishing Cass Pond
EPA Impairment Status
Cass 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: Aquatic life, Fish consumption.
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit NHLAK802020203-01 · Official waterbody report
Nearby Lakes in Cheshire County
Frequently asked questions about Cass Pond
Where is Cass Pond?
- Cass Pond is a lake in Cheshire County, New Hampshire. Its water-quality measurements are published by NHDES and shown on this page as reported.
What is the water quality of Cass Pond?
- Cass Pond in Cheshire County, New Hampshire has water-quality measurements published by NHDES, shown here as reported. Maximum depth: 20 ft. Surface area: 54 acres.
Is Cass Pond safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Cass Pond is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury, pH / acidity. Check local advisories before you swim.
How deep is Cass Pond?
- Cass Pond has a maximum depth of 20 feet and an average depth of 11.2 feet. The lake covers 54 acres.
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Where this data comes from
Measurements for Cass 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