How Clean Is Ripple Lake?
Ripple Lake has fair water quality — typical of lakes with moderate nutrient enrichment. It received a water quality grade of C (Fair) based on EPA monitoring data. Water clarity (Secchi depth): 4.5 ft. Phosphorus: 21 µg/L. Chlorophyll-a (algae): 14.4 µg/L. Trophic State Index: 53.
Cleanliness Snapshot
| Metric | Ripple Lake | Minnesota avg |
|---|---|---|
| Overall Grade | C | C |
| Water Clarity (Secchi) | 4.5 ft | — |
| Phosphorus | 21 µg/L | <30 = clean |
| Chlorophyll-a (Algae) | 14.4 µg/L | <10 = clean |
| Trophic State Index | 53 | <50 = clean |
How does Ripple Lake compare?
Ripple Lake's grade of C matches or beats the Minnesota state average of C. It ranks #13 of 18 lakes in Aitkin County by water quality score. Multi-year monitoring data shows water quality is stable based on 6 years of records.
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