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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
 MwRoMkff+VW+/KShjr/+GQ/TgKzs7BsY+NNdx/GdQlBds+ZNpzUTA01wes+F2H8A
 uKEBB7YMZIwYcNVQOrx2yw==

<SEC-DOCUMENT>0001181431-03-027308.txt : 20031022
<SEC-HEADER>0001181431-03-027308.hdr.sgml : 20031022
<ACCEPTANCE-DATETIME>20031022182737
ACCESSION NUMBER:		0001181431-03-027308
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20031022
FILED AS OF DATE:		20031022

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SOUTHWEST WATER CO
		CENTRAL INDEX KEY:			0000092472
		STANDARD INDUSTRIAL CLASSIFICATION:	WATER SUPPLY [4941]
		IRS NUMBER:				951840947
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		225 N BARRANCA AVE
		STREET 2:		STE 200
		CITY:			WEST COVINA
		STATE:			CA
		ZIP:			91791-1605
		BUSINESS PHONE:		6269151551

	MAIL ADDRESS:	
		STREET 1:		225 N BARRANCA AVENUE
		STREET 2:		SUITE 200
		CITY:			WEST COVINA
		STATE:			CA
		ZIP:			91791-1605

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SUBURBAN WATER SYSTEMS
		DATE OF NAME CHANGE:	19751202

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			HUENNEKENS DONOVAN D
		CENTRAL INDEX KEY:			0001063320

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-08176
		FILM NUMBER:		03952800

	BUSINESS ADDRESS:	
		STREET 1:		HQT HOMES
		STREET 2:		13821 NEWPORT AVE STE 120
		CITY:			TUSTIN
		STATE:			CA
		ZIP:			92780
		BUSINESS PHONE:		626-915-1551

	MAIL ADDRESS:	
		STREET 1:		HQT HOMES
		STREET 2:		13821 NEWPORT AVE STE 120
		CITY:			TUSTIN
		STATE:			CA
		ZIP:			92780
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>rrd20770.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?><ownershipDocument>
    <schemaVersion>X0201</schemaVersion>

    <documentType>4</documentType><periodOfReport>2003-10-22</periodOfReport><notSubjectToSection16>0</notSubjectToSection16>
    <issuer>
        <issuerCik>0000092472</issuerCik>
        <issuerName>SOUTHWEST WATER CO</issuerName>
        <issuerTradingSymbol>SWWC</issuerTradingSymbol></issuer><reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001063320</rptOwnerCik>
            <rptOwnerName>HUENNEKENS DONOVAN D</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>HQT HOMES</rptOwnerStreet1>
            <rptOwnerStreet2>13821 NEWPORT AVENUE, SUITE 120</rptOwnerStreet2>
            <rptOwnerCity>TUSTIN</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>92780</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
<isDirector>1</isDirector><isOfficer>0</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther></reportingOwnerRelationship></reportingOwner><nonDerivativeTable><nonDerivativeTransaction><securityTitle><value>Common Stock 0.01 par value</value></securityTitle><transactionDate><value>2003-10-17</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>A</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>218</value></transactionShares><transactionPricePerShare><value>14.001</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>52854</value><footnoteId id="F1"/></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></nonDeri
vativeTransaction><nonDerivativeTransaction><securityTitle><value>Common Stock 0.01 par value</value></securityTitle><transactionDate><value>2003-10-17</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>A</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>203</value></transactionShares><transactionPricePerShare><value>14.738</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>53058</value><footnoteId id="F2"/></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></nonDerivativeTransaction></nonDerivativeTable><footnotes><footnote id="F1">Includes 218 shares acquired in October pursuant to the SWWC Dividend Reinvestment Plan</f
ootnote><footnote id="F2">Includes 203 shares acquired in October pursuant to the SWWC Dividend Reinvestment Plan</footnote></footnotes><ownerSignature><signatureName>Donovan D. Huennekens</signatureName><signatureDate>2003-10-22</signatureDate></ownerSignature></ownershipDocument>



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