Marchs Pond
Strafford County, New Hampshire74 acresView mapDirections
No nutrient or algae sampling on record from NHDES for this lake.
- Impaired · Mercury
- 20 ft max depth
Marchs Pond in Strafford County, New Hampshire has water-quality measurements published by NHDES, shown here as reported. Maximum depth: 20 ft. Surface area: 74 acres.
Marchs Pond is a 74-acre lake in Strafford 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. Marchs Pond is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury. Check local advisories before you swim.
Whether Marchs 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 Marchs Pond
These are the measurements NHDES publishes for Marchs 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 Marchs Pond
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
20 ft
Average depth
10.5 ft
Surface area
74 acres
Shoreline
2 mi
The depth above comes from a bathymetric survey of this lake, not from a regional estimate.
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Fishing Marchs Pond
EPA Impairment Status
Marchs 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 NHLAK600030601-04 · Official waterbody report
Nearby Lakes in Strafford County
Frequently asked questions about Marchs Pond
Where is Marchs Pond?
- Marchs Pond is a lake in Strafford County, New Hampshire. Its water-quality measurements are published by NHDES and shown on this page as reported.
What is the water quality of Marchs Pond?
- Marchs Pond in Strafford County, New Hampshire has water-quality measurements published by NHDES, shown here as reported. Maximum depth: 20 ft. Surface area: 74 acres.
Is Marchs Pond safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Marchs Pond is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury. Check local advisories before you swim.
How deep is Marchs Pond?
- Marchs Pond has a maximum depth of 20 feet and an average depth of 10.5 feet. The lake covers 74 acres.
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Where this data comes from
Measurements for Marchs 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