Is There a Cleaner Lake Near Springbrook Lake?
Compared against 7 graded lakes within 30 miles, in Iowa.
Springbrook Lake holds Grade D (Nutrient-rich). Of the 7 lakes within 30 miles of it that carry a grade, none scores higher on nutrients and algae, so Springbrook 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 |
|---|---|---|---|---|
| Springbrook Lake | Guthrie County | D | This lake | 3 ft |
| Beaver Lake | Dallas County | F | 21.3 mi | 1.9 ft |
| Spring Lake Max Depth | Greene County | F | 21.7 mi | 0.9 ft |
| Littlefield Lake | Audubon County | F | 22.3 mi | 0.9 ft |
| Swan Lake Max Depth | Carroll County | F | 26.4 mi | 1.4 ft |
| Meadow Lake | Adair County | F | 26.9 mi | 1.7 ft |
| Lake Anita | Cass County | F | 29 mi | 2.2 ft |
| Lake Anita | Cass County | F | 29 mi | 2.2 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 Springbrook 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.