How Clean Is Lower Cullen Lake?
Lower Cullen Lake is among the cleanest lakes in Minnesota. Its nutrient and algae readings come from EPA monitoring data. Water clarity (Secchi depth): 17.4 ft. Phosphorus: 14.5 µg/L. Chlorophyll-a (algae): 2.7 µg/L. Trophic State Index: 40.
Cleanliness Snapshot
| Metric | Lower Cullen Lake | Minnesota avg |
|---|---|---|
| Water Clarity (Secchi) | 17.4 ft | — |
| Phosphorus | 14.5 µg/L | <30 = clean |
| Chlorophyll-a (Algae) | 2.7 µg/L | <10 = clean |
| Trophic State Index | 40 | <50 = clean |
How does Lower Cullen Lake compare?
Lower Cullen Lake's readings match or beat the Minnesota state average. It ranks #58 of 85 lakes in Crow Wing County by water quality score. Multi-year monitoring data shows water quality is declining based on 6 years of records.
Watch Lower Cullen Lake water quality
Get an email when the clarity or algae readings change. Unsubscribe anytime.
More on Lower Cullen Lake
Is Lower Cullen Lake safe for swimming? →What fish are in Lower Cullen Lake? →Is Lower Cullen Lake polluted? →When Does Lower Cullen Lake Freeze? Typical Ice-In Nov 30, Ice-Out Apr 15 →Full water quality report →Crow Wing County lakes →Cleanest lakes in Crow Wing County →Cleanest lakes in Minnesota →