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

Adams County Lake Quality

Colorado, 12 lakes, measured by Colorado WQCD

Adams County has 12 monitored lakes — a thin enough sample that one or two stressed lakes can move the county average noticeably. Use the per-lake pages below for what actually matters. The 12 monitored lakes in Adams County carry whatever clarity, phosphorus, and chlorophyll-a readings Colorado WQCD 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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Top-rated places to stay near Adams County

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Quick Answers for Adams County

Cleanest lakes in Adams County →Cleanest lakes in Colorado →Best swimming lakes in Colorado →

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

All Lakes in Adams County

12 lakes · 0 ranked on readings, 12 without enough sampling0 lakes ranked on readings · 12 without enough sampling, hidden

#LakeClarityPhosphorusAlgaeTrophicAccess
Barr LakeAdams3.9 ftNo recent samplesNo recent samplesNo recent samples✓ Public
Boot Lake ReservoirAdamsNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Landora LakeAdamsNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Derby LakeAdamsNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Reservoir FAdamsNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Reservoir CAdamsNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Ohio Lake ReservoirAdamsNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Eastlake Reservoir Number ThreeAdamsNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Smith ReservoirAdamsNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
McKay LakeAdamsNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Mayham LakeAdamsNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Lake SangracoAdamsNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot 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 Colorado

Pueblo County

15 lakes

Jackson County

22 lakes

Montrose County

6 lakes

Moffat County

8 lakes

Jefferson County

29 lakes

San Juan County

8 lakes

Browse every Colorado 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 Water Quality Control Division of the Colorado Department of Public Health and Environment. See data sources.