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Commitments and Contingencies (Tables)
 12 Months Ended
Dec. 31, 2012
Environmental Obligations

The following table shows the balances and activity in the Company’s liability for Environmental Obligations for 2012 and 2011.

 

ENVIRONMENTAL OBLIGATIONS

 

(Millions)

    December 31,  
      2012      2011  

Total Environmental Obligations—Balance at Beginning of Period

    $ 14.7       $ 14.6   

Changes in Estimates

      0.1         0.1   

Liabilities Assumed

      —         —   

Less: Payments / Reductions

      —         —   
  

 

 

     

 

 

  

Total Environmental Obligations—Balance at End of Period

      14.8         14.7   

Less: Current Portion(1)

      1.0         0.2   
  

 

 

     

 

 

  

Environmental Obligations—noncurrent—Balance at End of Period

    $ 13.8       $ 14.5   
  

 

 

     

 

 

  

 

(1) 

Reflects amounts included in Other Current Liabilities on the Company’s Consolidated Balance Sheets.