Swim advisories have been posted at 20 Iowa state beaches since Memorial Day

By: Cami Koons

Outlets: Iowa Capital Dispatch

Published: July 3, 2026

Words: 976

Last Updated: 2 weeks, 5 days ago


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Twenty state park beaches in Iowa have had swimming not recommended notices posted at least once since the Iowa Department of Natural Resources began monitoring the beaches for bacteria and harmful algal blooms at the end of May.

That’s about half of the 41 state beaches monitored by DNR throughout the summer.

Heading in to the July 4th holiday weekend, 11 state park beaches have swim advisories.

DNR measures the lake water at state …

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