<SEC-DOCUMENT>0001047469-19-005988-index.html : 20191031
<SEC-HEADER>0001047469-19-005988.hdr.sgml : 20191031
<ACCEPTANCE-DATETIME>20191031060753
ACCESSION NUMBER:		0001047469-19-005988
CONFORMED SUBMISSION TYPE:	S-3ASR
PUBLIC DOCUMENT COUNT:		6
FILED AS OF DATE:		20191031
DATE AS OF CHANGE:		20191031
EFFECTIVENESS DATE:		20191031

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CALIFORNIA WATER SERVICE GROUP
		CENTRAL INDEX KEY:			0001035201
		STANDARD INDUSTRIAL CLASSIFICATION:	WATER SUPPLY [4941]
		IRS NUMBER:				770448994
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		S-3ASR
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-234389
		FILM NUMBER:		191181960

	BUSINESS ADDRESS:	
		STREET 1:		1720 N FIRST ST
		STREET 2:		C/O CALIFORNIA WATER SERVICE CO
		CITY:			SAN JOSE
		STATE:			CA
		ZIP:			95112
		BUSINESS PHONE:		4083678200

	MAIL ADDRESS:	
		STREET 1:		1720 FIRST ST
		STREET 2:		C/O CALIFORNIA WATER SERVICE CO
		CITY:			SAN JOSE
		STATE:			CA
		ZIP:			95112
</SEC-HEADER>
<DOCUMENT>
<TYPE>S-3ASR
<SEQUENCE>1
<FILENAME>a2239960zs-3asr.htm
<DESCRIPTION>S-3ASR
<TEXT>
Document 1 - file: a2239960zs-3asr.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-5.1
<SEQUENCE>2
<FILENAME>a2239960zex-5_1.htm
<DESCRIPTION>EX-5.1
<TEXT>
Document 2 - file: a2239960zex-5_1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.2
<SEQUENCE>3
<FILENAME>a2239960zex-23_2.htm
<DESCRIPTION>EX-23.2
<TEXT>
Document 3 - file: a2239960zex-23_2.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>g618702.jpg
<DESCRIPTION>G618702.JPG
<TEXT>
Document 4 - file: g618702.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>g673702.jpg
<DESCRIPTION>G673702.JPG
<TEXT>
Document 5 - file: g673702.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>g817202.jpg
<DESCRIPTION>G817202.JPG
<TEXT>
Document 6 - file: g817202.jpg

</DOCUMENT>
</SEC-DOCUMENT>