How Clean Is Elmo Lake?
Elmo Lake is a clean lake by Minnesota standards. It received a water quality grade of B (Good) based on EPA monitoring data. Water clarity (Secchi depth): 11.2 ft. Trophic State Index: 42.
Cleanliness Snapshot
| Metric | Elmo Lake | Minnesota avg |
|---|---|---|
| Overall Grade | B | C |
| Water Clarity (Secchi) | 11.2 ft | — |
| Trophic State Index | 42 | <50 = clean |
How does Elmo Lake compare?
Elmo Lake's grade of B matches or beats the Minnesota state average of C. It ranks #8 of 31 lakes in Washington County by water quality score. Multi-year monitoring data shows water quality is stable based on 4 years of records.