SF Bay sand mining alarms conservationists

San Francisco Chronicle

Dredge mining of shoals near Angel and Alcatraz islands and throughout Suisun Bay is robbing the bay of sand that keeps San Francisco's Ocean Beach from eroding, according to new research by the U.S. Geological Survey.

Partly as a result of sand mining, the 10-mile stretch between southern Ocean Beach and Point San Pedro near Pacifica is eroding faster than any other section of coastline in California, the geological survey says.

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