Exhibit 12.1

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

 
  Year ended December 31,  
 
  2014   2013   2012   2011   2010  

Earnings:

                               

Income before Income Tax Expense

  $ 84,710   $ 67,723   $ 70,279   $ 60,878   $ 62,211  

Fixed Charges Interest Expense

    28,765     31,179     32,354     32,455     27,936  

Capitalized Interest

    (1,535 )   (2,038 )   (3,401 )   (2,741 )   (1,563 )

Total

  $ 111,940   $ 96,864   $ 99,232   $ 90,592   $ 88,584  

Fixed Charges:

                               

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

  $ 28,483   $ 30,897   $ 32,072   $ 32,455   $ 27,936  

Estimated Interest Component of Rent Expense

    282     282     282     474     338  

Total

  $ 28,765   $ 31,179   $ 32,354   $ 32,929   $ 28,274  

Ratio of Earnings to Fixed Charges

    3.89     3.11     3.07     2.75     3.13