| Area   | 
         Northern Mattole  | 
     
     
         | Topic | 
         Temperature: Min, Max, Avg, Mattole River at Petrolia, 2001 | 
     
 
 
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   Caption:  Average, minimum and maximum water temperatures during year 2001for the mainstem Mattole River.  The thermograph was placed  near the Petrolia gauging station approximately 75 yds downstream from the Petrolia Bridge.  Data was collected and analyzed by the NCRWQCB.
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