An advisory against water contact at Southern Oregon's most popular reservoir has been lifted in time for the Fourth of July weekend.
The U.S. Army Corps of Engineers says a blue-green algae bloom has dissipated from Lost Creek Lake, and samples show no unsafe levels of toxins.
The Medford Mail Tribune (http://bit.ly/1pSja8c) reports blooms have been common at the reservoir on the Rogue River since the Oregon Health Authority began issuing advisories a decade ago.
Advisories warn against water contact, such as drinking it or swimming, and suggest catch-and-release fishing and boat speeds slow enough to prevent spray.
The advisory was issued June 3, the first of the season in Oregon.
The blooms can produce potentially dangerous toxins, particularly when they die off. Not all blooms become toxic.