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Commitments and Contingent Liabilities (Tables)
6 Months Ended
Jun. 30, 2012
Commitments And Contingent Liabilities Tables  
Schedule of Water cost purchased

 

   (In Thousands) 
   Three Months Ended
June 30,
   Six Months Ended
June 30,
 
   2012   2011   2012   2010 
                 
Treated  $775   $652   $1,494   $1,292 
Untreated   516    516    1,128    1,122 
Total Costs  $1,291   $1,168   $2,622   $2,414