Trumbull Pond
Merrimack County, New Hampshire50 acresView mapDirections
No nutrient or algae sampling on record from NHDES for this lake.
- Impaired · Mercury
- 18 ft max depth
Trumbull Pond in Merrimack County, New Hampshire has water-quality measurements published by NHDES, shown here as reported. Maximum depth: 18 ft. Surface area: 50 acres.
Trumbull Pond is a 50-acre lake in Merrimack County, New Hampshire with a maximum depth of 18 feet (8-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. Trumbull Pond is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury. Check local advisories before you swim.
Whether Trumbull 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 Trumbull Pond
These are the measurements NHDES publishes for Trumbull 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 Trumbull Pond
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
18 ft
Average depth
7.5 ft
Surface area
50 acres
Shoreline
1.8 mi
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Fishing Trumbull Pond
EPA Impairment Status
Trumbull 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 NHLAK700030304-06 · Official waterbody report
Nearby Lakes in Merrimack County
Frequently asked questions about Trumbull Pond
Where is Trumbull Pond?
- Trumbull Pond is a lake in Merrimack County, New Hampshire. Its water-quality measurements are published by NHDES and shown on this page as reported.
What is the water quality of Trumbull Pond?
- Trumbull Pond in Merrimack County, New Hampshire has water-quality measurements published by NHDES, shown here as reported. Maximum depth: 18 ft. Surface area: 50 acres.
Is Trumbull Pond safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Trumbull Pond is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury. Check local advisories before you swim.
How deep is Trumbull Pond?
- Trumbull Pond has a maximum depth of 18 feet and an average depth of 7.5 feet. The lake covers 50 acres.
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Where this data comes from
Measurements for Trumbull 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