California Water Service Co Watch

S-3ASR

Automatic shelf registration

05/11/12

FWP

Free writing prospectus

11/18/10

424B5

Prospectus supplement for primary offering

11/18/10

424B5

Prospectus supplement for primary offering

11/16/10

424B5

Prospectus supplement for primary offering

04/14/09

FWP

#### ####### ##########

04/14/09

424B5

########## ########## ### ####### ########

04/08/09

S-3ASR

######### ##### ############

04/08/09

8-K

###### ## ######## ######### ########## ### ########

01/02/98

10-Q

ended 12/34/56 ##

11/10/97

10-Q

ended 12/34/56 ##

08/01/97

10-Q

ended 12/34/56 ##

05/05/97

10-K405

###### ###### #### ########## ##### ##########

03/25/97

DEF 14A

########## #####

03/18/97

PREM14A

########### ##### ####### ## ######

03/04/97

10-Q

ended 12/34/56 ##

11/12/96

10-Q

ended 12/34/56 ##

08/08/96

10-Q

ended 12/34/56 ##

05/13/96

10-K405

###### ###### #### ########## ##### ##########

03/25/96

DEF 14A

########## #####

03/11/96

SC 13G/A

U.S. Bancorp.

02/13/98

SC 13G

U.S. Bancorp.

02/14/97