Is There a Cleaner Lake Near Three Mile Lake?
Compared against 8 graded lakes within 30 miles, in Iowa.
Three Mile Lake holds Grade D (Nutrient-rich). Of the 8 lakes within 30 miles of it that carry a grade, none scores higher on nutrients and algae, so Three Mile Lake is the cleanest graded water in that radius. 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 |
|---|---|---|---|---|
| Three Mile Lake | Union County | D | This lake | 2.7 ft |
| Twelve Mile Lake | Union County | F | 2.4 mi | 2.4 ft |
| Thayer Lake | Union County | F | 8.4 mi | 3.5 ft |
| Green Valley Lake | Union County | F | 9.1 mi | 1.5 ft |
| Mckinley Lake | Union County | F | 9.1 mi | 1 ft |
| Green Valley Lake | Union County | F | 9.3 mi | 1.5 ft |
| Summit Lake | Union County | F | 9.6 mi | 1.4 ft |
| Lake Orient | Adair County | F | 14.5 mi | 1.3 ft |
| Fogle Lake | Ringgold County | F | 19.2 mi | 2.3 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 Three Mile Lake only with neighbouring lakes in Iowathat carry a letter of their own, within 30 miles. 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.