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Ripley Lake reads lower on nutrients and algae than Unnamed Lake. Both are in Meeker County, Minnesota.

Reviewed by LakeQuality Editorial Team · Updated

Both Ripley Lake and Unnamed 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. The readings are meaningfully apart: Ripley Lake carries clearly lower phosphorus and chlorophyll-a readings than Unnamed Lake. A spread that wide reflects real underlying differences, in watershed inputs, depth profiles, or monitoring rigor.

For a recreational visitor, the wider gap in the readings is decisive: Ripley 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?

Ripley Lake

Meeker County, Minnesota

Murky, only visible to about 4.6 ft.

Unnamed Lake

Meeker County, Minnesota

Very murky, less than 0.7 ft of visibility.

Side-by-Side Metrics

MetricRipley LakeUnnamed Lake
Water Clarity4.6 ft Better0.7 ft
Phosphorus44 µg/L Better224 µg/L
Chlorophyll-a (Algae)19.4 µg/L Better85.4 µg/L
Maximum Depth18 ft Better15 ft
Surface Area614 acres553 acres
Public AccessYesYes
Fish Species12 Better10
Trophic Stateeutrophichypereutrophic

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

Ripley Lake reads lower on nutrients and algae than Unnamed Lake. Water clarity: 4.6 ft vs 0.7 ft. For fishing diversity, Ripley Lake also leads with 12 species.

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Source: EPA National Aquatic Resource Surveys, 2026.