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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 BVVCcvbRmuypSbRIqysoGevB9PDzpsIPb8TXUNggspwrOLwrRwA9vuX9CLVXzgJW
 tGL0IUZCimb0Ia1rrvbpjw==

<SEC-DOCUMENT>0001209191-03-010167.txt : 20030702
<SEC-HEADER>0001209191-03-010167.hdr.sgml : 20030702
<ACCEPTANCE-DATETIME>20030702161808
ACCESSION NUMBER:		0001209191-03-010167
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030630
FILED AS OF DATE:		20030702

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			LAYNE CHRISTENSEN CO
		CENTRAL INDEX KEY:			0000888504
		STANDARD INDUSTRIAL CLASSIFICATION:	CONSTRUCTION SPECIAL TRADE CONTRACTORS [1700]
		IRS NUMBER:				480920712
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0131

	BUSINESS ADDRESS:	
		STREET 1:		1900 SHAWNEE MISSION PKWY
		CITY:			MISSION WOODS
		STATE:			KS
		ZIP:			66205-2001
		BUSINESS PHONE:		9133620510

	MAIL ADDRESS:	
		STREET 1:		1900 SHAWNEE MISSION PKWY
		CITY:			MISSION WOODS
		STATE:			KS
		ZIP:			66205-2001

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	LAYNE INC
		DATE OF NAME CHANGE:	19930328

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			KKR ASSOCIATES
		CENTRAL INDEX KEY:			0000901651
		STATE OF INCORPORATION:			NY
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-20578
		FILM NUMBER:		03772197

	BUSINESS ADDRESS:	
		STREET 1:		C/O KOHLBERG KRAVIS ROBERTS & CO LP
		STREET 2:		9 WEST 57TH STREET
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10019
		BUSINESS PHONE:		212-750-8300

	MAIL ADDRESS:	
		STREET 1:		C/O KOHLBER KVRAVIS ROBERTS & CO., L.P.,
		STREET 2:		9 WEST 57TH STREET
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10019
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?><ownershipDocument><schemaVersion>X0101</schemaVersion>    <documentType>4</documentType><periodOfReport>2003-06-30</periodOfReport><issuer><issuerCik>0000888504</issuerCik><issuerName>LAYNE CHRISTENSEN CO</issuerName>        <issuerTradingSymbol>LAYN</issuerTradingSymbol></issuer><reportingOwner><reportingOwnerId><rptOwnerCik>0000901651</rptOwnerCik><rptOwnerName>KKR ASSOCIATES</rptOwnerName></reportingOwnerId><reportingOwnerAddress><rptOwnerStreet1>  </rptOwnerStreet1><rptOwnerStreet2>  </rptOwnerStreet2><rptOwnerCity>  </rptOwnerCity><rptOwnerState>  </rptOwnerState><rptOwnerZipCode>  </rptOwnerZipCode></reportingOwnerAddress><reportingOwnerRelationship><isDirector>0</isDirector><isOfficer>0</isOfficer><isTenPercentOwner>1</isTenPercentOwner><isOther>0</isOther><officerTitle></officerTitle><otherText></otherText></reportingOwnerRelationship></reportingOwner><nonDerivativeSecurity><securityTitle><value>Common Stock</value></securityTitle><transactionDate><value>2003-06-30</value></tran
sactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>S</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionTimeliness><value></value></transactionTimeliness><transactionAmounts><transactionShares><value>1555200</value><footnoteId id="F1" /></transactionShares><transactionValue><value>8</value></transactionValue><transactionAcquiredDisposedCode><value>D</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>175236</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></nonDerivativeSecurity><nonDerivativeSecurity><securityTitle><value>Common Stock</value></securityTitle><transactionDate><value>2003-07-01</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>S</transactionCode><equitySwapInvolved>0
</equitySwapInvolved></transactionCoding><transactionTimeliness><value></value></transactionTimeliness><transactionAmounts><transactionShares><value>53495</value></transactionShares><transactionValue><value>8.07</value></transactionValue><transactionAcquiredDisposedCode><value>D</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>121741</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></nonDerivativeSecurity><footnotes><footnote id="F1">Sold by KKR Associates, L.P. pursuant to Registration Statement on Form S-3 under the Securities Act of 1933, as amended.</footnote></footnotes><ownerSignature><signatureName>/s/ Richard J. Kreider, Attorney-In-Fact for Reporting Person</signatureName><signatureDate>2003-07-02</signatureDate></ownerSignature></ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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