EXHIBIT 12.1

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

		Year ended December 31,
		2008				2007				2006				2005				2004
Earnings(1):
Income before income tax expense			63,936				51,882				42,419				47,229				43,111
Fixed charges expensed and capitalized			20,591				19,719				19,669				18,600				18,664
Capitalized interest			(3,411	)			(2,585	)			(2,700	)			(900	)			(824	)
			81,116				69,016				59,388				64,929				60,951
Fixed Charges:
Interest expensed and capitalized, and amortization of capitalized expense related to indebtedness			20,591				19,719				19,669				18,600				18,664
Estimated interest component of rent expense			237				221				208				180				205
			20,828				19,940				19,877				18,780				18,869
Ratio of earnings to fixed charges			3.89				3.46				2.99				3.46				3.23