Lake Harwinton
Northwest Hills County, Connecticut42 acresView mapDirections
No nutrient or algae sampling on record from CT DEEP for this lake.
Lake Harwinton in Northwest Hills County, Connecticut has water-quality measurements published by CT DEEP, shown here as reported. Surface area: 42 acres.
Lake Harwinton is a 42-acre lake in Northwest Hills 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 Lake Harwinton 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 Lake Harwinton
These are the measurements CT DEEP publishes for Lake Harwinton, 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 Lake Harwinton
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
42 acres
Shoreline
1.8 mi
No bathymetric survey has been published for Lake Harwinton, so its depth is not documented here.
Stays via Stay22
Stays near Lake Harwinton
Compare lakeside cabins, hotels, and vacation rentals near Lake Harwinton in Northwest Hills County, Connecticut — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
Top-rated places to stay near Lake Harwinton
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Fishing Lake Harwinton
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Frequently asked questions about Lake Harwinton
Where is Lake Harwinton?
- Lake Harwinton is a lake in Northwest Hills County, Connecticut. Its water-quality measurements are published by CT DEEP and shown on this page as reported.
What is the water quality of Lake Harwinton?
- Lake Harwinton in Northwest Hills County, Connecticut has water-quality measurements published by CT DEEP, shown here as reported. Surface area: 42 acres.
Is Lake Harwinton 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 Lake Harwinton come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.