How Clean Is Caldron Falls Reservoir?
Caldron Falls Reservoir is among the cleanest lakes in Wisconsin. It received a water quality grade of A (Excellent) based on EPA monitoring data. Water clarity (Secchi depth): 17.7 ft. Trophic State Index: 36.
Cleanliness Snapshot
| Metric | Caldron Falls Reservoir | Wisconsin avg |
|---|---|---|
| Overall Grade | A | B |
| Water Clarity (Secchi) | 17.7 ft | — |
| Trophic State Index | 36 | <50 = clean |
How does Caldron Falls Reservoir compare?
Caldron Falls Reservoir's grade of A matches or beats the Wisconsin state average of B. It ranks #9 of 22 lakes in Marinette County by water quality score. Multi-year monitoring data shows water quality is declining based on 4 years of records.