DES MOINES, Iowa — The Iowa Department of Natural Resources says swimming is not advised at 17 public beaches, all of which have E. coli readings that exceed acceptable levels. The DNR conducts weekly tests at more than three dozen public swimming beaches between the week before Memorial Day through Labor Day.

15 DNR Monitored Beaches with an E. coli Advisory:
Backbone Beach (Dundee, Delaware County, IA)* 
Beed’s Lake Beach (Hampton, Franklin County, IA)* 
Brushy Creek Beach (Lehigh, Webster County, IA)*
Bobwhite State Park (Allerton, Wayne County, IA)* 
Crandall’s Beach (Big Spirit Lake, Spirit Lake, Dickinson County, IA)*
Emerson Bay Beach (West Okoboji Lake, Milford, Dickinson County, IA)* 
Lake Ahquabi Beach (Indianola, Warren County, IA)*
Lake Darling Beach (Brighton, Washington County, IA)*
Lake Manawa Beach (Council Bluffs, Pottawattamie County, IA)* 
Lake of Three Fires Beach (Bedford, Taylor County, IA)* 
Lower Pine Lake Beach (Eldora, Hardin County, IA)*
Nine Eagles Beach (Davis City, Decatur County, IA)* 
Pleasant Creek Lake Beach (Palo, Linn County, IA)* 
Prairie Rose Beach (Harlan, Shelby County, IA)* 
Union Grove Beach (Gladbrook, Tama County, IA)*

2 DNR Monitored Beaches with a Microcystin Advisory:
Lake Darling Beach (Brighton, Washington County, IA)*
Viking Lake Beach (Stanton, Montgomery County, IA)*
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4 U.S. Army Corps of Engineers Monitored Beaches with an E. coli Advisory:
North Overlook Beach (Lake Red Rock, Pella, Marion County, IA)**
Sugar Bottom Campground Beach (Coralville Lake, Coralville, Johnson County, IA)**
West Overlook Beach (Coralville Lake, Coralville, Johnson County, IA)**
Whitebreast Beach (Lake Red Rock, Pella, Marion County, IA)** 

Note: George Wyth Beach is closed due to flooding. Monitoring has been suspended at Lake Keomah due to renovation activities. McIntosh Woods Beach is closed due to park storm damage. From the Army Corps of Engineers, Oak Grove Beach was not sampled due to high water elevations.

*This data is from the Iowa DNR State Park Beach Monitoring Program
**Data from the U.S. Army Corps of Engineers, Rock Island District