Is There a Cleaner Lake Near Birch Island Lake?
Compared against 4 graded lakes nearby, in Wisconsin.
Birch Island Lake holds Grade B (Good). Of the 4 lakes neighbouring it that carry a grade, none scores higher on nutrients and algae, so Birch Island Lake is the cleanest graded water among its neighbours. Lakes nearby without enough recent sampling to earn a letter are not part of that comparison.
The graded lakes it was measured against
| Lake | County | Grade | Distance | Clarity |
|---|---|---|---|---|
| Birch Island Lake | Burnett County | B | This lake | 8 ft |
| Loon Lake | Burnett County | B | Nearby | 8.5 ft |
| Fish Lake | Burnett County | B | Nearby | 14 ft |
| Sand Lake | Burnett County | B | Nearby | 18 ft |
| Long Lake | Burnett County | B | Nearby | 21.5 ft |
What the comparison covers
A grade on LakeQuality comes from EPA Water Quality Portal samples: phosphorus, nitrogen, chlorophyll-a and turbidity, measured against EPA National Lakes Assessment ecoregion classes. Secchi clarity is shown and is not scored. This page compares Birch Island Lake only with neighbouring lakes in Wisconsinthat carry a letter of their own. A nearby lake with too little recent sampling has no letter to compare, so it is absent from the table rather than ranked below. Where a driving distance is not published for a lake, the table says so instead of estimating one.