How Clean Is North Lake?
North Lake is a clean lake by Wisconsin standards. Its nutrient and algae readings come from EPA monitoring data. Water clarity (Secchi depth): 8 ft. Phosphorus: 17.9 µg/L. Trophic State Index: 46.
Cleanliness Snapshot
| Metric | North Lake | Wisconsin avg |
|---|---|---|
| Water Clarity (Secchi) | 8 ft | — |
| Phosphorus | 17.9 µg/L | <30 = clean |
| Trophic State Index | 46 | <50 = clean |
How does North Lake compare?
North Lake's readings match or beat the Wisconsin state average. It ranks #12 of 35 lakes in Waukesha County by water quality score. Multi-year monitoring data shows water quality is improving based on 6 years of records.
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