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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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 7yYQLri8MPZ746KXuVw/Qw==

<SEC-DOCUMENT>0001209191-07-006046.txt : 20070130
<SEC-HEADER>0001209191-07-006046.hdr.sgml : 20070130
<ACCEPTANCE-DATETIME>20070130164202
ACCESSION NUMBER:		0001209191-07-006046
CONFORMED SUBMISSION TYPE:	4/A
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20060526
FILED AS OF DATE:		20070130
DATE AS OF CHANGE:		20070130

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			AMERICAN ECOLOGY CORP
		CENTRAL INDEX KEY:			0000742126
		STANDARD INDUSTRIAL CLASSIFICATION:	REFUSE SYSTEMS [4953]
		IRS NUMBER:				953889638
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		805 W IDAHO
		STREET 2:		STE 200
		CITY:			BOSIE
		STATE:			ID
		ZIP:			83702
		BUSINESS PHONE:		2083318400

	MAIL ADDRESS:	
		STREET 1:		300 E. MALLARD
		STREET 2:		STE 300
		CITY:			BOISE
		STATE:			ID
		ZIP:			83706

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			HEIL EDWARD F/IL/
		CENTRAL INDEX KEY:			0000946535

	FILING VALUES:
		FORM TYPE:		4/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-11688
		FILM NUMBER:		07565080

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		6307191200

	MAIL ADDRESS:	
		STREET 1:		631 E BUTTERFIELD RD
		STREET 2:		SUITE 302
		CITY:			LOMBARD
		STATE:			IL
		ZIP:			60148
</SEC-HEADER>
<DOCUMENT>
<TYPE>4/A
<SEQUENCE>1
<FILENAME>c11623-01efh.xml
<DESCRIPTION>MAIN DOCUMENT DESCRIPTION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4/A</documentType>

    <periodOfReport>2006-05-26</periodOfReport>

    <dateOfOriginalSubmission>2006-05-26</dateOfOriginalSubmission>

    <issuer>
        <issuerCik>0000742126</issuerCik>
        <issuerName>AMERICAN ECOLOGY CORP</issuerName>
        <issuerTradingSymbol>ECOL</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000946535</rptOwnerCik>
            <rptOwnerName>HEIL EDWARD F/IL/</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O AMERICAN ECOLOGY CORPORATION</rptOwnerStreet1>
            <rptOwnerStreet2>300 E. MALLARD, SUITE 300</rptOwnerStreet2>
            <rptOwnerCity>BOISE</rptOwnerCity>
            <rptOwnerState>ID</rptOwnerState>
            <rptOwnerZipCode>83706</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>2005-05-26</value>
            </transactionDate>
            <deemedExecutionDate>
                <value>2005-05-26</value>
            </deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>1000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1720966</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>629460</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Trust</value>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">Issued pursuant to 2005 Non-Employee Director Compensation Plan.</footnote>
        <footnote id="F2">The shares are held in a trust for the benefit of the reporting person's children. A business associate of the reporting person serves as trustee of the trust. Due to a clerical error, it had been previously reported that the reporting person served as trustee of the trust. The reporting person disclaims beneficial ownership of these securities, and the filing of this report is not an admission that the reporting person is the beneficial owner of these securities for the purposes of Section 16 or for any other purpose.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Edward F. Heil</signatureName>
        <signatureDate>2007-01-26</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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