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Boulder Reservoir swim beach closed for elevated levels of bacteria

The closure will last until at least mid-afternoon on Wednesday
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Posted at 12:12 PM, Jul 12, 2022
and last updated 2022-07-13 07:34:32-04

BOULDER COUNTY, Colo. — The swim beach at Boulder Reservoir has been temporarily closed after testing revealed elevated levels of bacteria in the water.

Boulder County Parks and Recreation announced the closure around 8:30 a.m. Tuesday after a water sampling test showed the bacteria levels were elevated. The swim beach will remain closed until at least mid-afternoon Wednesday or once bacteria levels are reduced, according to the county.

Officials said elevated levels of bacteria can occur when organic matter flows in the water after rain runoff because the reservoir is an open, untreated body of water.

The closure only impacts the designated swimming area at Boulder Reservoir. The reservoir remains open to boating, waterskiing, fishing and picnicking.

Visitors can call 303-441-3461 or check Boulder Parks and Recreation’s Twitter page for updates.

Denver 7+ Colorado News Latest Headlines | July 12, 11am

Editor's Note: This story has been edited after Boulder Parks and Recreation provided an updated possible opening time.