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Organization, Summary of Significant Accounting Policies and Recent Developments (Tables)
 12 Months Ended
Dec. 31, 2014
Organization Summary Of Significant Accounting Policies And Recent Developments [Abstract]  
Range of depreciation rates
These rates have been approved by the NJBPU, DEPSC or PAPUC:


 

Source of Supply     1.15% - 3.44%   Transmission and Distribution (T&D):        
Pumping     2.87% - 5.39%   T&D – Mains     1.10% - 3.13%  
Water Treatment     1.65% - 7.09%   T&D – Services     2.12% - 3.16%  
General Plant     2.08% - 17.84%   T&D – Other     1.61% - 4.63%  

 
Allowance for Funds Used During Construction Rates
The AFUDC rates for the years ended December 31, 2014, 2013 and 2012 for Middlesex and Tidewater are as follows:


 

    2014     2013     2012  
Middlesex         7.03%             7.34%             7.34%    
Tidewater         7.91%             7.91%             7.91%