Green Lake
LaGrange County, Indiana69 acresView mapDirections
IDEM publishes the water-quality measurements for Green Lake. Here is what has been measured.
- 27 ft max depth
- Limited data
Green Lake in LaGrange County, Indiana has water-quality measurements published by IDEM, shown here as reported. Phosphorus: 14.5 µg/L. Chlorophyll-a (algae): 2.4 µg/L. Maximum depth: 26.9 ft. Surface area: 69 acres.
Green Lake is a 69-acre lake in LaGrange County, Indiana with a maximum depth of 27 feet (10-foot average).
Source: EPA Water Quality Portal sampling records, IDEM, last sampled 2022-06-30. Methodology: how these readings are compared.
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Green Lake is safe to swim in today is a call for the Indiana Department of Environmental Management and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Green Lake
These are the measurements IDEM publishes for Green Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data. Phosphorus 14.5 µg/L. Chlorophyll-a 2.4 µg/L.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | No reading How deep a black-and-white disk stays visible from the surface. Higher is clearer. | |
| Total phosphorus | 14.5µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| Chlorophyll-a (algae) | 2.4µg/L | Measured, not scored The green pigment in algae — a direct measure of how much algae is in the water. |
Ask about Green Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
26.9 ft
Average depth
9.8 ft
Surface area
69 acres
Shoreline
1.4 mi
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Frequently asked questions about Green Lake
Where is Green Lake?
- Green Lake is a lake in LaGrange County, Indiana. Its water-quality measurements are published by IDEM and shown on this page as reported.
What is the water quality of Green Lake?
- Green Lake in LaGrange County, Indiana has water-quality measurements published by IDEM, shown here as reported. Phosphorus: 14.5 µg/L. Chlorophyll-a (algae): 2.4 µg/L. Maximum depth: 26.9 ft. Surface area: 69 acres.
Is Green Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Green Lake?
- Green Lake has a maximum depth of 26.9 feet and an average depth of 9.8 feet. The lake covers 69 acres.
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Where this data comes from
Measurements for Green Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.