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ENVIRONMENTAL MATTERS (Tables)
3 Months Ended
Mar. 31, 2022
Environmental Obligations Recognized by Company
The following table sets forth a summary of changes in the Company’s liability for Environmental Obligations for the three months ended March 31, 2022 and 2021.

 
Environmental Obligations ($ millions)
 
 
  
Three Months Ended

March 31,
 
 
  
    2022    
 
  
    2021    
 
Total Balance at Beginning of Period
  
$
2.7
 
   $ 2.1  
Additions
     —          0.1  
Less: Payments / Reductions
     —          0.1  
    
 
 
    
 
 
 
Total Balance at End of Period
  
 
2.7
 
     2.1  
    
 
 
    
 
 
 
Less: Current Portion
    
0.5
       0.3  
    
 
 
    
 
 
 
Noncurrent Balance at End of Period
  
$
2.2
 
   $ 1.8