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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
 SBzat0dSUBg2lotInSiKZnnulchW+EkynRtg96dHCpaaOdCkC8J2KZlOc55sjsen
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<SEC-DOCUMENT>0001144204-09-002434.txt : 20090116
<SEC-HEADER>0001144204-09-002434.hdr.sgml : 20090116
<ACCEPTANCE-DATETIME>20090116183023
ACCESSION NUMBER:		0001144204-09-002434
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20081231
FILED AS OF DATE:		20090116
DATE AS OF CHANGE:		20090116

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Becker Steven R
		CENTRAL INDEX KEY:			0001349005

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-22400
		FILM NUMBER:		09532612

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		214-756-6073

	MAIL ADDRESS:	
		STREET 1:		300 CRESCENT COURT
		STREET 2:		SUITE 1111
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75201

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			STRATEGIC DIAGNOSTICS INC/DE/
		CENTRAL INDEX KEY:			0000911649
		STANDARD INDUSTRIAL CLASSIFICATION:	MISCELLANEOUS CHEMICAL PRODUCTS [2890]
		IRS NUMBER:				561581761
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		111 PENCADER DR
		CITY:			NEWARK
		STATE:			DE
		ZIP:			19702
		BUSINESS PHONE:		3024566789

	MAIL ADDRESS:	
		STREET 1:		111 PENCADER DR
		CITY:			NEWARK
		STATE:			DE
		ZIP:			19702

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ENSYS ENVIRONMENTAL PRODUCTS INC /DE/
		DATE OF NAME CHANGE:	19930907
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>form419795_011609183001-.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2008-12-31</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000911649</issuerCik>
        <issuerName>STRATEGIC DIAGNOSTICS INC/DE/</issuerName>
        <issuerTradingSymbol>SDIX</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001349005</rptOwnerCik>
            <rptOwnerName>Becker Steven R</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>300 CRESCENT COURT</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 1111</rptOwnerStreet2>
            <rptOwnerCity>DALLAS</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>US 75201</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2008-12-31</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>15730</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>15730</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2150739</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>limited partnerships</value>
                    <footnoteId id="F1"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">(1)	Represents shares held directly by SRB Greenway Opportunity Fund, L.P. (223,979 shares) and SRB Greenway Opportunity Fund (QP), L.P. (1,926,760 shares).   The sole general partner of  SRB Greenway Opportunity Fund, L.P. and SRB Greenway Opportunity Fund (QP), L.P. is SRB Management, L.P., a limited partnership of which the sole general partner is BC Advisors, LLC, a member managed limited liability company.  The Reporting Person is the sole member of BC Advisors, LLC and disclaims beneficial ownership in the shares held directly by SRB Greenway Opportunity Fund, L.P. and SRB Greenway Opportunity Fund (QP), L.P. except to the extent of his pecuniary interest therein.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Steven R. Becker</signatureName>
        <signatureDate>2009-01-16</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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