Munn Pond
Coos County, New Hampshire45 acresView mapDirections
No nutrient or algae sampling on record from NHDES for this lake.
- Impaired · Mercury
- 30 ft max depth
Munn Pond in Coos County, New Hampshire has water-quality measurements published by NHDES, shown here as reported. Maximum depth: 30 ft. Surface area: 45 acres.
Munn Pond is a 45-acre lake in Coos County, New Hampshire with a maximum depth of 30 feet (20-foot average).
Source: EPA Water Quality Portal sampling records, your state environmental agency. Methodology: how these readings are compared.
What Munn Pond is good for
From access and monitoring records, not editorial picks.
- Deep water30 ft surveyed max depth
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Munn Pond is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury. Check local advisories before you swim.
Whether Munn 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 Munn Pond
These are the measurements NHDES publishes for Munn 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 Munn Pond
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
30 ft
Average depth
20 ft
Surface area
45 acres
Shoreline
1.2 mi
The depth above comes from a bathymetric survey of this lake, not from a regional estimate.
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Fishing Munn Pond
EPA Impairment Status
Munn 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 NHLAK400010602-10 · Official waterbody report
Nearby Lakes in Coos County
Frequently asked questions about Munn Pond
Where is Munn Pond?
- Munn Pond is a lake in Coos County, New Hampshire. Its water-quality measurements are published by NHDES and shown on this page as reported.
What is the water quality of Munn Pond?
- Munn Pond in Coos County, New Hampshire has water-quality measurements published by NHDES, shown here as reported. Maximum depth: 30 ft. Surface area: 45 acres.
Is Munn Pond safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Munn Pond is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury. Check local advisories before you swim.
How deep is Munn Pond?
- Munn Pond has a maximum depth of 30 feet and an average depth of 20 feet. The lake covers 45 acres.
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Where this data comes from
Measurements for Munn 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