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Popular Oklahoma lake swimming area closed after E. coli found in the water

Grand Lake speed boat

GROVE, Okla. – Officials have a health alert for anyone planning a trip to Grand Lake this weekend.

A popular swimming area is closed after authorities found E. coli in the water.

The beach at Grand Lake State Park in Bernice is closed right now after the water samples tested positive for the bacteria.

Officials say a handful of illnesses have been reported and now investigators are trying to find out where it’s coming from.

We’re told the swimming area at Grand Lake State Park will be closed until at least Thursday, while additional tests are done.

Grand Lake e-coli map