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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)
 12 Months Ended
Dec. 31, 2014
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES  
Schedule of estimated useful lives for significant property and equipment

 

                                                                                                                                                                                    

 

 

 

Useful Lives

Vehicles and other equipment

 

3 to 10 years

Disposal facility and equipment

 

3 to 20 years

Buildings and improvements

 

5 to 40 years

Railcars

 

40 years