One state park's swimming area is closed for the weekend.
According to the Department of Energy and Environmental Protection, only the swimming area of Kettletown State Park in Southbury remains closed because of toxic blue-green algae blooms.
On Thursday, the swimming area at Kettletown was closed because of the algae.
People can still swim at Indian Well State Park despite a warning posted to swimmers to "stay away from areas where the algae blooms have created greenish patches on the surface of the water."
Last week, DEEP officials warned residents about cyanobacteria blooms.
To learn more about cyanobacteria blooms, click here.
Gardner Lake and Gay City state parks' beaches reopened on Friday. Test results came back on Friday showing acceptable levels.
Wadsworth Falls State Park also reopened on Thursday, according to DEEP officials, along with the swimming areas at Quaddick and Mashamoquet Brook.
DEEP officials said shoreline beaches were tested on Wednesday.
DEEP said it tests for the presence of certain indicator bacteria. The bacteria are not disease-causing pathogens. However, they are one of the tools used to evaluate potential contamination.
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