From the Marin Independent Journal: San Francisco Bay waters are becoming more clear, but that may mean threats from algae growth

  • by BPC Staff
  • on December 30, 2013
  • 0 Comments

San Francisco Bay waters are becoming more clear, but that may mean threats from algae growth

By Paul Rogers
Bay Area News Group

SAN FRANCISCO BAY is becoming clearer.

Decades of tidal action have finally washed away most of the mess created 150 years ago by Gold Rush miners who blasted apart hillsides in the Sierra Nevada. The result was millions of tons of mud, gravel and sand that made its way downriver and ended up in the bay, clouding its waters and coating the bottom with a layer of silt up to 3 feet thick.

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