COUNCIL BLUFFS, Iowa — A “No Swim” Advisory remains in effect for Lake Manawa, in Council Bluffs. In July, the Iowa DNR had said the E. Coli bacteria levels in Lake Manawa were five times higher than the level considered safe. The lake is one of 11 across the State will an E.Coli-related advisory. The Iowa DNR says it will keep the beach under a “no swim advisory” – or, swim at your own risk – for the time being.

Other area lakes or recreation areas with advisories still in effect, include: Prairie Rose State Park Beach, in Shelby County,  the Lake of Three Fires Beach, in Bedford, and Nine Eagles Beach in Davis County, in southern Iowa.

Officials with the Iowa Department of Natural Resources say it’s nearly impossible to trace the source of the bacteria, that’s because the sources can include animals such as wildlife, dogs, and humans. Determining the exact source is expensive and time consuming.