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Keeping Lake Tahoe blue

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About 3 million visitors a year are drawn to Lake Tahoe for its recreational opportunities, mountain scenery and clear blue water. But development, traffic and air pollution have caused Tahoe’s trademark blue water to gradually cloud up and turn green. Researchers are studying the problem, and property owners have until 2008 to comply with erosion-control measures, which are being phased in over eight years.

For the record:

12:00 a.m. Dec. 21, 2005 For The Record
Los Angeles Times Wednesday December 21, 2005 Home Edition Main News Part A Page 2 National Desk 1 inches; 59 words Type of Material: Correction
Lake Tahoe -- The text with a graphic in Tuesday’s California section said that development, traffic and air pollution had caused Lake Tahoe’s trademark blue water to gradually become cloudy and turn green. Those factors are causing changes in the lake, but only some of the lake water has turned color. The text implied that it had turned completely.

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