(Oregon City, OR)  --  Health officials have lifted an advisory for the Clackamas River near Clackamette Park.  They issued an advisory on Monday about high levels of algae in the cove at the park in Oregon City.  Officials lifted that advisory yesterday after monitoring the algae for about 48 hours.  KGW-TV reports people who got drinking water from that portion of the river were also told to stop using tap water for a couple of days.