Robbins Lake
Cass County, Michigan56 acresView mapDirections
EGLE publishes the water-quality measurements for Robbins Lake. Here is what has been measured.
- 50 ft max depth
- Limited data
Robbins Lake in Cass County, Michigan has water-quality measurements published by EGLE, shown here as reported. Water clarity: 12.3 ft visibility. Maximum depth: 50 ft. Surface area: 56 acres.
Free interactive depth-contour map of Robbins Lake, reaching a maximum surveyed depth of 50 ft. Toggle Depth contours to overlay the bathymetric survey lines. Contour data from Michigan DNR.
Robbins Lake is a 56-acre lake in Cass County, Michigan with a maximum depth of 50 feet. Overall water quality is declining over recent sampling years.
Source: EPA Water Quality Portal sampling records, EGLE, last sampled 2021-09-10. Methodology: how these readings are compared.
What Robbins Lake is good for
From access and monitoring records, not editorial picks.
- Clear water12.3 ft of visibility
- Deep water50 ft surveyed max depth
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Robbins Lake is safe to swim in today is a call for the Michigan Department of Environment, Great Lakes, and Energy (EGLE) and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Robbins Lake
These are the measurements EGLE publishes for Robbins Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Good clarity, visible to about 12.3 ft. TSI 41.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 12.3ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | No reading The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. | |
| Chlorophyll-a (algae) | No reading The green pigment in algae — a direct measure of how much algae is in the water. | |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 41 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about Robbins Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
50 ft
Surface area
56 acres
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Stays near Robbins Lake
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Fishing Robbins Lake
Water quality readings over time
2 seasons of samples on record (2019–2021). Calling a direction takes at least 4 years of the same measurement.
Water clarity
Worsening2 years
Phosphorus
Stable0 µg/L/yr2 years
Nearby Lakes in Cass County
Frequently asked questions about Robbins Lake
Where is Robbins Lake?
- Robbins Lake is a lake in Cass County, Michigan. Its water-quality measurements are published by EGLE and shown on this page as reported.
What is the water quality of Robbins Lake?
- Robbins Lake in Cass County, Michigan has water-quality measurements published by EGLE, shown here as reported. Water clarity: 12.3 ft visibility. Maximum depth: 50 ft. Surface area: 56 acres.
Is Robbins Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Robbins Lake?
- Robbins Lake has a maximum depth of 50 feet. The lake covers 56 acres.
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Where this data comes from
35 measurements from 1 monitoring station, 2019–2021. Retrieved from the EPA Water Quality Portal on 2026-08-26.
Collected and reported by
- North American Lake Management Society
NALMS35 samples · 2019–2021
Monitoring station identifiers (1)
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.