Coast Guard checks on discolored water near La.

NEW ORLEANS (AP) - The Coast Guard says an area of discolored water near a Mississippi River pass south of New Orleans appears to be an algae bloom, but another spot 10 miles away could be oil.

Spokesman Jeff Hall says tests could determine if the suspected oil is from the BP spill.

The Coast Guard sent two flights over the West Bay area near Venice on Saturday. Two boats also went out to check on the waters.

Hall told The Associated Press that tests will be done Monday on water samples from an area where a marine investigator believes there's an algae bloom.

About 10 miles away, Hall says a crew saw what appears to be weathered oil.

Six months after the spill, the federal government maintains much of the oil is now gone from the Gulf.

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