One of the beaches at Lake of the Ozarks State Park will be closed this weekend after Missouri Department of Natural Resources tests showed elevated E. coli bacteria levels. A water sample collected from the Grand Glaize Beach, or Public Beach No. 2,  at Lake of the Ozarks State Park had 325.5 E. coli colonies per 100 milliliters, prompting the department to close it.


One of the beaches at Lake of the Ozarks State Park will be closed this weekend after Missouri Department of Natural Resources tests showed elevated E. coli bacteria levels.

A water sample collected from the Grand Glaize Beach, or Public Beach No. 2,  at Lake of the Ozarks State Park had 325.5 E. coli colonies per 100 milliliters, prompting the department to close it. Public Beach No. 1 at Lake of the Ozarks State Park met department standards and remains open.

DNR closes state park beaches if a single water sample tests above 235 E. coli colonies per 100 milliliters of water. The Environmental Protection Agency sets the single-sample guideline for swimming beaches.

Visitors may continue to use the public beach at PB. No. 1, which is accessible off of Route 42 in Osage Beach.

E. coli is a bacteria found in the intestinal tract of warm-blooded animals, including humans.  While most strains of E. coli are harmless, some strains can cause gastrointestinal illness.

These bacteria and other pathogens can reach lake water from many different sources, both human and animal.