Gratiot County Lake Quality
Michigan, 3 lakes, measured by EGLE
Gratiot County has 3 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 3 monitored lakes in Gratiot County carry whatever clarity, phosphorus, and chlorophyll-a readings EGLE 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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Quick Answers for Gratiot County
Planning a trip? Check special fishing regulations for Half Moon Lake — or check the official Michigan fishing regulations.
All Lakes in Gratiot County
3 lakes · 0 ranked on readings, 3 without enough sampling0 lakes ranked on readings · 3 without enough sampling, hidden
| # | Lake | Clarity | Phosphorus | Algae | Trophic | Max Depth | Access |
|---|---|---|---|---|---|---|---|
| Half Moon LakeGratiot | No recent samples | No recent samples | No recent samples | No recent samples | 25 ft | Not recorded | |
| Rainbow LakeGratiot | No recent samples | No recent samples | No recent samples | No recent samples | 44 ft | Not recorded | |
| Rainbow LakeGratiot | No recent samples | No recent samples | No recent samples | No recent samples | No recent samples | Not 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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Source: the Michigan Department of Environment, Great Lakes, and Energy (EGLE). See data sources.