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LakeQuality
Late afternoon sun over Slim Lake, scattering a bright path across wind-textured water

Capitol County Lake Quality

Connecticut, 33 lakes, measured by CT DEEP

There are 33 monitored lakes in Capitol County. The mix is varied enough that the county-level average tells you the broad strokes, not the choose-this-cabin specifics. The 33 monitored lakes in Capitol County carry whatever clarity, phosphorus, and chlorophyll-a readings CT DEEP has published, shown as reported.

Most of the county's monitored lakes are shallow, under 50 feet, which means wind keeps the water column mixed all summer and sediment-bound phosphorus releases back into the surface layer whenever the bottom is disturbed.

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Where to stay near Capitol County

Top-rated places to stay near Capitol County

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Quick Answers for Capitol County

Cleanest lakes in Capitol County →Best swimming lakes in Connecticut →

Planning a trip? Check special fishing regulations for Amston Lake — or check the official Connecticut fishing regulations.

All Lakes in Capitol County

33 lakes · 0 ranked on readings, 33 without enough sampling0 lakes ranked on readings · 33 without enough sampling, hidden

#LakeClarityPhosphorusAlgaeTrophicMax DepthAccess
Amston LakeCapitolNo recent samplesNo recent samplesNo recent samplesNo recent samples24.9 ftNot recorded
Bissonnette PondCapitolNo recent samplesNo recent samplesNo recent samplesNo recent samples7.9 ftNot recorded
Bradway PondCapitolNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Buckingham ReservoirCapitolNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Columbia LakeCapitolNo recent samplesNo recent samplesNo recent samplesNo recent samples25.9 ftNot recorded
Compounce LakeCapitolNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Crescent LakeCapitolNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Eagleville LakeCapitolNo recent samplesNo recent samplesNo recent samplesNo recent samples8 ftNot recorded
Globe Hollow ReservoirCapitolNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Grannis PondCapitolNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Great PondCapitolNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Griswold ReservoirCapitolNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Hansens PondCapitolNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Hockanum River ReservoirCapitolNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Holbrook PondCapitolNo recent samplesNo recent samplesNo recent samplesNo recent samples8 ft✓ Public
Lower Hart PondCapitolNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Merimere ReservoirCapitolNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Mono PondCapitolNo recent samplesNo recent samplesNo recent samplesNo recent samples10 ftNot recorded
Nepaug ReservoirCapitolNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
New City PondCapitolNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Plainville ReservoirCapitolNo recent samplesNo recent samplesNo recent samplesNo recent samples16 ftNot recorded
Secret LakeCapitolNo recent samplesNo recent samplesNo recent samplesNo recent samples15.1 ftNot recorded
Shenipsit LakeCapitolNo recent samplesNo recent samplesNo recent samplesNo recent samples65 ftNot recorded
Shuttle Meadow ReservoirCapitolNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Skungamaug MarshCapitolNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Staffordville ReservoirCapitolNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
State Line PondCapitolNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Strong PondCapitolNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Union PondCapitolNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Upper Hart PondCapitolNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Wassel ReservoirCapitolNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Wood PondCapitolNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Woodridge LakeCapitolNo recent samplesNo recent samplesNo recent samplesNo recent samples5.9 ftNot recorded

NR = no nutrient or algae reading on record. The measurements are published as the authority reports them. Where the data comes from.

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Other Counties in Connecticut

Tolland County

13 lakes

New Haven County

6 lakes

Middlesex County

9 lakes

Litchfield County

21 lakes

New London County

19 lakes

Fairfield County

9 lakes

Browse every Connecticut lake, or the full directory of lakes across all United States (49 states), Canada (Ontario, Québec, Nova Scotia, British Columbia and Newfoundland and Labrador), and 38 other country hubs..

Source: the Connecticut Department of Energy and Environmental Protection. See data sources.