Longham Reservoir
Essex County, Massachusetts41 acresView mapDirections
No nutrient or algae sampling on record from MassDEP for this lake.
Longham Reservoir in Essex County, Massachusetts has water-quality measurements published by MassDEP, shown here as reported. Surface area: 41 acres.
Longham Reservoir is a 41-acre lake in Essex County, Massachusetts.
Source: EPA Water Quality Portal sampling records, MassDEP. Methodology: how these readings are compared.
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Longham Reservoir is safe to swim in today is a call for the Massachusetts Department of Environmental Protection and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Longham Reservoir
These are the measurements MassDEP publishes for Longham Reservoir, 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 Longham Reservoir
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
41 acres
Shoreline
2.4 mi
No bathymetric survey has been published for Longham Reservoir, so its depth is not documented here.
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Frequently asked questions about Longham Reservoir
Where is Longham Reservoir?
- Longham Reservoir is a lake in Essex County, Massachusetts. Its water-quality measurements are published by MassDEP and shown on this page as reported.
What is the water quality of Longham Reservoir?
- Longham Reservoir in Essex County, Massachusetts has water-quality measurements published by MassDEP, shown here as reported. Surface area: 41 acres.
Is Longham Reservoir safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
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Where this data comes from
Measurements for Longham Reservoir come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.