How Clean Is Collinwood Lake?
Collinwood Lake is algae-prone, with a higher bloom risk in warm months. It received a water quality grade of F (Algae-prone) based on EPA monitoring data. Water clarity (Secchi depth): 4 ft. Phosphorus: 135 µg/L. Chlorophyll-a (algae): 38.6 µg/L. Trophic State Index: 66.
Cleanliness Snapshot
| Metric | Collinwood Lake | Minnesota avg |
|---|---|---|
| Overall Grade | F | C |
| Water Clarity (Secchi) | 4 ft | — |
| Phosphorus | 135 µg/L | <30 = clean |
| Chlorophyll-a (Algae) | 38.6 µg/L | <10 = clean |
| Trophic State Index | 66 | <50 = clean |
How does Collinwood Lake compare?
Collinwood Lake's grade of F falls below the Minnesota state average of C. It ranks #40 of 51 lakes in Wright County by water quality score. Multi-year monitoring data shows water quality is improving based on 5 years of records.
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