How Clean Is North Center Lake?
North Center 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): 3.5 ft. Phosphorus: 40 µg/L. Chlorophyll-a (algae): 16 µg/L. Trophic State Index: 58.
Cleanliness Snapshot
| Metric | North Center Lake | Minnesota avg |
|---|---|---|
| Overall Grade | C | C |
| Water Clarity (Secchi) | 3.5 ft | — |
| Phosphorus | 40 µg/L | <30 = clean |
| Chlorophyll-a (Algae) | 16 µg/L | <10 = clean |
| Trophic State Index | 58 | <50 = clean |
How does North Center Lake compare?
North Center Lake's grade of C matches or beats the Minnesota state average of C. It ranks #19 of 31 lakes in Chisago County by water quality score. Multi-year monitoring data shows water quality is improving based on 5 years of records.