Griswold Reservoir
Capitol County, Connecticut35 acresView mapDirections
No nutrient or algae sampling on record from CT DEEP for this lake.
Griswold Reservoir in Capitol County, Connecticut has water-quality measurements published by CT DEEP, shown here as reported. Surface area: 35 acres.
Griswold Reservoir is a 35-acre lake in Capitol 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 Griswold 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 Griswold Reservoir
These are the measurements CT DEEP publishes for Griswold 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.
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Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
35 acres
Shoreline
1.2 mi
No bathymetric survey has been published for Griswold Reservoir, so its depth is not documented here.
Stays via Stay22
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Fishing Griswold Reservoir
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Frequently asked questions about Griswold Reservoir
Where is Griswold Reservoir?
- Griswold Reservoir is a lake in Capitol County, Connecticut. Its water-quality measurements are published by CT DEEP and shown on this page as reported.
What is the water quality of Griswold Reservoir?
- Griswold Reservoir in Capitol County, Connecticut has water-quality measurements published by CT DEEP, shown here as reported. Surface area: 35 acres.
Is Griswold 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 Griswold Reservoir come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.