Olin Lake
LaGrange County, Indiana103 acresView mapDirections
IDEM publishes the water-quality measurements for Olin Lake. Here is what has been measured.
- Oligotrophic
- Impaired · PCBs
Olin Lake in LaGrange County, Indiana has water-quality measurements published by IDEM, shown here as reported. Phosphorus: 12.5 µg/L. Chlorophyll-a (algae): 2 µg/L. Surface area: 103 acres.
Olin Lake is a 103-acre cold, clear oligotrophic lake in LaGrange County, Indiana.
Source: EPA Water Quality Portal sampling records, IDEM, last sampled 2024-08-18. Methodology: how these readings are compared.
Swimming conditions
Readings onlyModerate algae
Based on clarity and algae readings from past sampling — there is no live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Nutrient and algae readings are not a swimming clearance. Olin Lake is listed impaired under Clean Water Act §303(d) (IR 5) for pCBs. Check local advisories before you swim.
Whether Olin 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 Olin Lake
These are the measurements IDEM publishes for Olin 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 12.5 µg/L. Chlorophyll-a 2 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 | 12.5µg/L | Good GoodFairPoor |
| Chlorophyll-a (algae) | 2µg/L | Good GoodFairPoor |
Low nutrients, clear water. No reading is a swimming clearance.
Ask about Olin Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
103 acres
Shoreline
2.1 mi
No bathymetric survey has been published for Olin Lake, so its depth is not documented here.
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Stays near Olin Lake
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Fishing Olin Lake
EPA Impairment Status
Olin Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
Causes of impairment
Designated uses not supporting: Fish consumption.
Source: EPA ATTAINS assessment unit INJ01P1026_00 · Official waterbody report
Nearby Lakes in LaGrange County
Frequently asked questions about Olin Lake
Where is Olin Lake?
- Olin 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 Olin Lake?
- Olin Lake in LaGrange County, Indiana has water-quality measurements published by IDEM, shown here as reported. Phosphorus: 12.5 µg/L. Chlorophyll-a (algae): 2 µg/L. Surface area: 103 acres.
Is Olin Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Olin Lake is listed impaired under Clean Water Act §303(d) (IR 5) for pCBs. Check local advisories before you swim.
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Where this data comes from
Measurements for Olin Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database