How Clean Is Calhoun Lake?
Calhoun 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): 6.9 ft. Phosphorus: 24 µg/L. Chlorophyll-a (algae): 8.8 µg/L. Trophic State Index: 50.
Cleanliness Snapshot
| Metric | Calhoun Lake | Minnesota avg |
|---|---|---|
| Overall Grade | C | C |
| Water Clarity (Secchi) | 6.9 ft | — |
| Phosphorus | 24 µg/L | <30 = clean |
| Chlorophyll-a (Algae) | 8.8 µg/L | <10 = clean |
| Trophic State Index | 50 | <50 = clean |
How does Calhoun Lake compare?
Calhoun Lake's grade of C matches or beats the Minnesota state average of C. It ranks #9 of 25 lakes in Kandiyohi County by water quality score. Multi-year monitoring data shows water quality is declining based on 6 years of records.
Watch Calhoun Lake water quality
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