How Clean Is White Iron Lake?
White Iron Lake is among the cleanest lakes in Minnesota. It received a water quality grade of A (Excellent) based on EPA monitoring data. Water clarity (Secchi depth): 4.5 ft. Phosphorus: 20 µg/L. Chlorophyll-a (algae): 3.7 µg/L. Trophic State Index: 49.
Cleanliness Snapshot
| Metric | White Iron Lake | Minnesota avg |
|---|---|---|
| Overall Grade | A | C |
| Water Clarity (Secchi) | 4.5 ft | — |
| Phosphorus | 20 µg/L | <30 = clean |
| Chlorophyll-a (Algae) | 3.7 µg/L | <10 = clean |
| Trophic State Index | 49 | <50 = clean |
How does White Iron Lake compare?
White Iron Lake's grade of A matches or beats the Minnesota state average of C. It ranks #5 of 35 lakes in Lake County by water quality score. Multi-year monitoring data shows water quality is declining based on 6 years of records.