Form: 10-K

Annual report pursuant to Section 13 and 15(d)

February 28, 2013


Exhibit 12.1

California Water Service Group
Computation of Ratios of Earnings to Fixed Charges
(In thousands except ratios)

 
  Year ended December 31,  
 
  2012   2011   2010   2009   2008  

Earnings:

                               

Income before Income Tax Expense

  $ 70,279   $ 60,878   $ 62,211   $ 67,916   $ 63,936  

Fixed Charges Interest Expense

    32,354     32,455     27,936     24,394     20,591  

Capitalized Interest

    (3,401 )   (2,741 )   (1,563 )   (3,081 )   (3,411 )
                       

Total

  $ 99,232   $ 90,592   $ 88,584   $ 89,229   $ 81,116  
                       

Fixed Charges:

                               

Interest Expensed & Capitalized, & amortization of capitalized expense related to indebtedness

  $ 32,072   $ 32,455   $ 27,936   $ 24,394   $ 20,591  

Estimated Interest Component of Rent Expense

    282     474     338     329     237  
                       

Total

  $ 32,354   $ 32,929   $ 28,274   $ 24,723   $ 20,828  
                       

Ratio of Earnings to Fixed Charges

    3.07     2.75     3.13     3.61     3.89