Caldwell Lake
Kosciusko County, Indiana44 acresView mapDirections
IDEM publishes the water-quality measurements for Caldwell Lake. Here is what has been measured.
- Impaired · Nutrients (phosphorus, nitrogen)
- 40 ft max depth
- Limited data
Caldwell Lake in Kosciusko County, Indiana has water-quality measurements published by IDEM, shown here as reported. Phosphorus: 259.5 µg/L. Chlorophyll-a (algae): 11.9 µg/L. Maximum depth: 40 ft. Surface area: 44 acres.
Caldwell Lake is a 44-acre lake in Kosciusko County, Indiana with a maximum depth of 40 feet (18-foot average).
Source: EPA Water Quality Portal sampling records, IDEM, last sampled 2021-06-21. Methodology: how these readings are compared.
What Caldwell Lake is good for
From access and monitoring records, not editorial picks.
- Deep water40 ft surveyed max depth
Swimming conditions
No readingRecreation use not supported
Nutrient and algae readings are not a swimming clearance. Caldwell Lake is listed impaired under Clean Water Act §303(d) (IR 5) for nutrients (phosphorus, nitrogen). Check local advisories before you swim.
Whether Caldwell 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 Caldwell Lake
These are the measurements IDEM publishes for Caldwell 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 259.5 µg/L. Chlorophyll-a 11.9 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 | 260µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| Chlorophyll-a (algae) | 11.9µg/L | Measured, not scored The green pigment in algae — a direct measure of how much algae is in the water. |
Ask about Caldwell Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
40 ft
Average depth
18 ft
Surface area
44 acres
Shoreline
1.5 mi
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Stays near Caldwell Lake
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Fishing Caldwell Lake
EPA Impairment Status
Caldwell 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: Recreation.
Source: EPA ATTAINS assessment unit INB06P1073_00 · Official waterbody report
Nearby Lakes in Kosciusko County
Frequently asked questions about Caldwell Lake
Where is Caldwell Lake?
- Caldwell Lake is a lake in Kosciusko County, Indiana. Its water-quality measurements are published by IDEM and shown on this page as reported.
What is the water quality of Caldwell Lake?
- Caldwell Lake in Kosciusko County, Indiana has water-quality measurements published by IDEM, shown here as reported. Phosphorus: 259.5 µg/L. Chlorophyll-a (algae): 11.9 µg/L. Maximum depth: 40 ft. Surface area: 44 acres.
Is Caldwell Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Caldwell Lake is listed impaired under Clean Water Act §303(d) (IR 5) for nutrients (phosphorus, nitrogen). Check local advisories before you swim.
How deep is Caldwell Lake?
- Caldwell Lake has a maximum depth of 40 feet and an average depth of 18 feet. The lake covers 44 acres.
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Where this data comes from
Measurements for Caldwell Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database