MDNR closes lake beach in Park Hills for high bacteria levels - KFVS12 News & Weather Cape Girardeau, Carbondale, Poplar Bluff

MDNR closes lake beach in Park Hills for high bacteria levels


One state park swimming beach is temporarily closed for water quality issues, according to the Missouri Department of Natural Resources.

St. Joe's Monsanto Lake Beach located in Park Hills is closed following results of water samples taken Monday that indicated bacteria levels higher than those recommended for waters used for swimming. Once a test from the public beach indicates the bacteria levels are within the standard suitable for swimming, MDNR says the beach will reopen. St. Joe State Park has a second designated swimming beach, Pim Lake Beach, which remains open to the public.

The department collects water samples from all designated beaches in the state park system weekly during the recreational season to determine suitability for swimming. Beaches will be closed for high bacteria when a single E. coli sample exceeds 235 cfu/100ml or when the geometric mean – a 30-day rolling average – exceeds 126 cfu/100 ml. The sample test results indicate a snap shot of the water quality taken at the beaches at a specific time; however, a single sample does not provide an overall sense of the water quality in the lake where the beach is located.

The department will post the information about the beach status on the website at as well as

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