Andrusia Lake vs Drewery Lake
Water quality, depth, fish species, and recreation comparison.
Andrusia Lake has a higher water quality grade (A, Excellent) than Drewery Lake (C, Fair). Both are in Beltrami County, Minnesota.
Both Andrusia Lake and Drewery Lake sit in Minnesota. A same-state comparison strips out the state-level water-quality regime as a variable: any grade differences here are about the lakes themselves, not the agencies grading them. Andrusia Lake (A) is materially cleaner than Drewery Lake (C). A gap that wide is unlikely to close in a single year of remediation work; it reflects multi-decade differences in the lakes themselves.
For a recreational visitor, the wider grade gap is decisive — Andrusia Lake is the better water-quality choice. For a researcher, the gap is the interesting part: what is different about the two watersheds, and which of those differences is mutable?
Andrusia Lake
Crystal clear, you can see 15.1 ft down.
Drewery Lake
Murky, only visible to about 3.5 ft.
Side-by-Side Metrics
| Metric | Andrusia Lake | Drewery Lake |
|---|---|---|
| Overall Grade | A (Excellent) | C (Fair) |
| Water Clarity | 15.1 ft | 3.5 ft |
| Phosphorus | 14.5 µg/L | 11.5 µg/L |
| Chlorophyll-a (Algae) | 3.6 µg/L | 2.7 µg/L |
| Maximum Depth | 60 ft | 120 ft |
| Surface Area | 1,596 acres | 15,958 acres |
| Public Access | Yes | Yes |
| Fish Species | 21 | 21 |
| Trophic State | mesotrophic | mesotrophic |
Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).
Verdict
Andrusia Lake wins on overall water quality with a Grade A versus Drewery Lake's Grade C. Water clarity: 15.1 ft vs 3.5 ft. For fishing diversity, Andrusia Lake also leads with 21 species.
Source: EPA National Aquatic Resource Surveys, 2026.