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South Lindstrom Lake reads lower on nutrients and algae than Rush Lake. Both are in Chisago County, Minnesota.

Reviewed by LakeQuality Editorial Team · Updated

Both Rush Lake and South Lindstrom Lake sit in Minnesota. A same-state comparison strips out the state-level water-quality regime as a variable: any differences in the readings here are about the lakes themselves, not the agencies sampling them. South Lindstrom Lake reads materially cleaner than Rush Lake on nutrients and algae. A gap that wide is unlikely to close in a single year of remediation work; it reflects multi-decade differences in the lakes themselves.

For a recreational visitor, the wider gap in the readings is decisive: South Lindstrom Lake has the lower nutrient and algae numbers. For a researcher, the gap is the interesting part: what is different about the two watersheds, and which of those differences is mutable?

Rush Lake

Chisago County, Minnesota

Very murky, less than 3 ft of visibility.

South Lindstrom Lake

Chisago County, Minnesota

Murky, only visible to about 5.6 ft.

Side-by-Side Metrics

MetricRush LakeSouth Lindstrom Lake
Water Clarity3 ft5.6 ft Better
Phosphorus55.5 µg/L16 µg/L Better
Chlorophyll-a (Algae)31.4 µg/L6.1 µg/L Better
Maximum Depth24 ft34 ft Better
Surface Area1,494 acres455 acres
Public AccessYesYes
Fish Species16 Better14
Trophic Stateeutrophicmesotrophic

A green ✓ marks the better value for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better). Surface area and trophic state carry no tick — a bigger lake is not a better lake.

Verdict

South Lindstrom Lake reads lower on nutrients and algae than Rush Lake. Water clarity: 5.6 ft vs 3 ft. For more fish-species variety, Rush Lake edges ahead with 16 documented species.

Source: EPA National Aquatic Resource Surveys, 2026.