Exhibit 12.1
California Water Service Group
Computation of Ratios of Earnings to Fixed Charges
(In thousands except ratios)
                                                 
    Year ended December 31,  
    2009     2008     2007     2006     2005     2004  
     
Earnings:
                                                
Income before Income Tax Exp
     67,916       63,936       51,882       42,419       47,229       43,111  
Fixed Charges Exp & Capitalized
     24,394       20,591       19,719       19,669       18,600       18,664  
Capitalized Interest
     (3,081 )     (3,411 )     (2,585 )     (2,700 )     (900 )     (824 )
     
Total
     89,229       81,116       69,016       59,388       64,929       60,951  
 
                                                
Fixed Charges:
                                                
Interest Expensed & Capitalized, & amortization of capitalized expense related to indebtedness
     24,394       20,591       19,719       19,669       18,600       18,664  
Estimated Interest Component of Rent Expense
     329       237       221       208       180       205  
     
Total
     24,723       20,828       19,940       19,877       18,780       18,869  
 
                                                
Ratio of Earnings to Fixed Charges
     3.61       3.89       3.46       2.99       3.46       3.23