<SEC-DOCUMENT>0001104659-22-052348-index.html : 20220428
<SEC-HEADER>0001104659-22-052348.hdr.sgml : 20220428
<ACCEPTANCE-DATETIME>20220428164537
ACCESSION NUMBER:		0001104659-22-052348
CONFORMED SUBMISSION TYPE:	S-3ASR
PUBLIC DOCUMENT COUNT:		8
FILED AS OF DATE:		20220428
DATE AS OF CHANGE:		20220428
EFFECTIVENESS DATE:		20220428

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:	333-264542
		FILM NUMBER:		22867466

	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>tm2213726-1_s3asr.htm
<DESCRIPTION>S-3ASR
<TEXT>
Document 1 - file: tm2213726-1_s3asr.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-5.1
<SEQUENCE>2
<FILENAME>tm2213726d2_ex5-1.htm
<DESCRIPTION>EXHIBIT 5.1
<TEXT>
Document 2 - file: tm2213726d2_ex5-1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.2
<SEQUENCE>3
<FILENAME>tm2213726d2_ex23-2.htm
<DESCRIPTION>EXHIBIT 23.2
<TEXT>
Document 3 - file: tm2213726d2_ex23-2.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-FILING FEES
<SEQUENCE>4
<FILENAME>tm2213726d2_ex-filingfees.htm
<DESCRIPTION>EX-FILING FEES
<TEXT>
Document 4 - file: tm2213726d2_ex-filingfees.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>lg_waterservicegroup-4c.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: lg_waterservicegroup-4c.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>tm2213726d2_ex5-1img001.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: tm2213726d2_ex5-1img001.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>tm2213726d2_ex5-1img002.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 7 - file: tm2213726d2_ex5-1img002.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>tm2213726d2_ex5-1img003.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 8 - file: tm2213726d2_ex5-1img003.jpg

</DOCUMENT>
</SEC-DOCUMENT>