Foss Reservoir (Number Three)
Middlesex County, Massachusetts231 acresView mapDirections
No nutrient or algae sampling on record from MassDEP for this lake.
- Impaired · Nuisance exotic species
Foss Reservoir (Number Three) in Middlesex County, Massachusetts has water-quality measurements published by MassDEP, shown here as reported. Surface area: 231 acres.
Foss Reservoir (Number Three) is a 231-acre lake in Middlesex 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. Foss Reservoir (Number Three) is listed impaired under Clean Water Act §303(d) (IR 4C) for nuisance exotic species. Check local advisories before you swim.
Whether Foss Reservoir (Number Three) 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 Foss Reservoir (Number Three)
These are the measurements MassDEP publishes for Foss Reservoir (Number Three), 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 Foss Reservoir (Number Three)
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
231 acres
Shoreline
5.6 mi
No bathymetric survey has been published for Foss Reservoir (Number Three), so its depth is not documented here.
Stays via Stay22
Stays near Foss Reservoir (Number Three)
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Fishing Foss Reservoir (Number Three)
EPA Impairment Status
Foss Reservoir (Number Three) is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 4C).
Causes of impairment
Designated uses not supporting: Aquatic life.
Source: EPA ATTAINS assessment unit MA82046 · Official waterbody report
Nearby Lakes in Middlesex County
Frequently asked questions about Foss Reservoir (Number Three)
Where is Foss Reservoir (Number Three)?
- Foss Reservoir (Number Three) is a lake in Middlesex County, Massachusetts. Its water-quality measurements are published by MassDEP and shown on this page as reported.
What is the water quality of Foss Reservoir (Number Three)?
- Foss Reservoir (Number Three) in Middlesex County, Massachusetts has water-quality measurements published by MassDEP, shown here as reported. Surface area: 231 acres.
Is Foss Reservoir (Number Three) safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Foss Reservoir (Number Three) is listed impaired under Clean Water Act §303(d) (IR 4C) for nuisance exotic species. Check local advisories before you swim.
Explore Foss Reservoir (Number Three) across LakeQuality
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Where this data comes from
Measurements for Foss Reservoir (Number Three) 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