Adder Reservoir
Lower Connecticut River Valley County, Connecticut28 acresView mapDirections
No nutrient or algae sampling on record from CT DEEP for this lake.
Adder Reservoir in Lower Connecticut River Valley County, Connecticut has water-quality measurements published by CT DEEP, shown here as reported. Surface area: 28 acres.
Adder Reservoir is a 28-acre lake in Lower Connecticut River Valley County, Connecticut.
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. Check local advisories before you swim.
Whether Adder Reservoir is safe to swim in today is a call for the Connecticut Department of Energy and Environmental Protection and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Adder Reservoir
These are the measurements CT DEEP publishes for Adder 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 Adder Reservoir
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
28 acres
Shoreline
1.7 mi
No bathymetric survey has been published for Adder Reservoir, so its depth is not documented here.
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Frequently asked questions about Adder Reservoir
Where is Adder Reservoir?
- Adder Reservoir is a lake in Lower Connecticut River Valley County, Connecticut. Its water-quality measurements are published by CT DEEP and shown on this page as reported.
What is the water quality of Adder Reservoir?
- Adder Reservoir in Lower Connecticut River Valley County, Connecticut has water-quality measurements published by CT DEEP, shown here as reported. Surface area: 28 acres.
Is Adder 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 Adder Reservoir come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.