-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 VUyqWhBuAZ3EanWU7oi04hLm0G3NukFaTHc8+LxH4v6V5rsQwinRke20CqhebSwL
 1qz3ols+dh5/RjlPoHsdew==

<SEC-DOCUMENT>0001202216-03-000002.txt : 20030605
<SEC-HEADER>0001202216-03-000002.hdr.sgml : 20030605
<ACCEPTANCE-DATETIME>20030605160741
ACCESSION NUMBER:		0001202216-03-000002
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030604
FILED AS OF DATE:		20030605

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			RIEGLER RICHARD
		CENTRAL INDEX KEY:			0001202216

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-06659
		FILM NUMBER:		03734259

	BUSINESS ADDRESS:	
		STREET 1:		C/O PHILADELPHIA SUBURBAN CORP
		STREET 2:		762 W LANCASTER AVE
		CITY:			BRYN MAWR
		STATE:			PA
		ZIP:			19010
		BUSINESS PHONE:		6106451196

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			PHILADELPHIA SUBURBAN CORP
		CENTRAL INDEX KEY:			0000078128
		STANDARD INDUSTRIAL CLASSIFICATION:	WATER SUPPLY [4941]
		IRS NUMBER:				231702594
		STATE OF INCORPORATION:			PA
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		762 LANCASTER AVE
		CITY:			BRYN MAWR
		STATE:			PA
		ZIP:			19010
		BUSINESS PHONE:		2155278000

	MAIL ADDRESS:	
		STREET 1:		762 LANCASTER AVE
		CITY:			BRYN MAWR
		STATE:			PA
		ZIP:			19010
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>c0001202216d20030605f4f.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<ownershipDocument><schemaVersion>X0101</schemaVersion>    <documentType>4</documentType><periodOfReport>2003-06-04</periodOfReport><notSubjectToSection16>0</notSubjectToSection16><issuer><issuerCik>0000078128</issuerCik><issuerName>PHILADELPHIA SUBURBAN CORP</issuerName>        <issuerTradingSymbol>PSC</issuerTradingSymbol></issuer><reportingOwner><reportingOwnerId><rptOwnerCik>0001202216</rptOwnerCik><rptOwnerName>RIEGLER RICHARD</rptOwnerName></reportingOwnerId><reportingOwnerAddress><rptOwnerStreet1>  </rptOwnerStreet1><rptOwnerStreet2>  </rptOwnerStreet2><rptOwnerCity>  </rptOwnerCity><rptOwnerState>  </rptOwnerState><rptOwnerZipCode>  </rptOwnerZipCode></reportingOwnerAddress><reportingOwnerRelationship><isDirector>0</isDirector><isOfficer>1</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther><officerTitle>SR. VICE PRESIDENT-OPERATIONS</officerTitle><otherText></otherText></reportingOwnerRelationship></reportingOwner><nonDerivativeSecurity><securityTitle><value>Common Stock</value></
securityTitle><transactionDate><value>2003-06-04</value></transactionDate><deemedExecutionDate><value>2003-06-04</value></deemedExecutionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>G</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionTimeliness><value></value></transactionTimeliness><transactionAmounts><transactionShares><value>4888</value></transactionShares><transactionValue><value>23.7</value></transactionValue><transactionAcquiredDisposedCode><value>D</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>57664</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value></value></natureOfOwnership></ownershipNature></nonDerivativeSecurity><nonDerivativeSecurity><securityTitle><value>Common Stock</value></securityTitle><transactionDate><v
alue>2003-06-04</value></transactionDate><deemedExecutionDate><value>2003-06-04</value></deemedExecutionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>G</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionTimeliness><value></value></transactionTimeliness><transactionAmounts><transactionShares><value>4888</value></transactionShares><transactionValue><value>0</value></transactionValue><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>19843</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>I</value></directOrIndirectOwnership><natureOfOwnership><value>SPOUSE</value></natureOfOwnership></ownershipNature></nonDerivativeSecurity><footnotes></footnotes><ownerSignature><signatureName>Barbara Cummings</signatureName><signatureDate>2003-06-05</signatureDate></o
wnerSignature></ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----
