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LakeQuality

Of the 7 lakes within 30 miles of it with nutrient and algae readings on record, none reads lower than Springbrook Lake, so Springbrook Lake is the cleanest measured water in that radius. Lakes nearby without enough recent sampling to earn a letter are not part of that comparison.

Reviewed by LakeQuality Editorial Team · Updated

The measured lakes it was measured against

LakeCountyDistanceClarity
Springbrook LakeGuthrie CountyThis lake3 ft
Beaver LakeDallas County21.3 mi1.9 ft
Spring Lake Max DepthGreene County21.7 mi0.9 ft
Littlefield LakeAudubon County22.3 mi0.9 ft
Swan Lake Max DepthCarroll County26.4 mi1.4 ft
Meadow LakeAdair County26.9 mi1.7 ft
Lake AnitaCass County29 mi2.2 ft
Lake AnitaCass County29 mi2.2 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 readings 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.