CLEAN HARBORS, INC. Performance-Based Restricted Stock Award Agreement

Exhbiit 10.54C

CLEAN HARBORS, INC.

Performance-Based Restricted Stock Award Agreement

THIS AGREEMENT (the “Agreement”) is made as of the date set forth above (the “Award Date”) between Clean Harbors, Inc., a Massachusetts corporation (the “Company”), and the above-referenced employee (the “Participant”).

For valuable consideration, receipt of which is acknowledged, the parties hereto agree as follows.

1.                                       Grant of Shares and Vesting.

Effective as of the Award Date, the Company hereby grants to the Participant [            ] shares (the “Shares”) of the Company’s common stock, par value $.01 per share (“Common Stock”), as an Award of Restricted Stock pursuant to the Company’s 2010 Stock Incentive Plan (such Plan, as it may previously have been or may hereafter be amended, the “Plan”).  All of the terms and conditions of the Plan are incorporated herein by reference, and any capitalized terms that are not defined herein shall have the respective meanings ascribed to such terms in the Plan. The Participant hereby accepts the Award and agrees to acquire and hold the Shares subject to the terms and conditions of the Plan and the additional terms and conditions contained herein.

Provided that the Company shall achieve the performance goal (the “Performance Goal”) set out in Attachment A within the performance period (“Performance Period”) set out in Attachment A, the Shares shall vest (and become “Vested Shares”) in such amounts and on such dates (the “Vesting Schedule”) as are set out in Attachment A. The period between the Award Date and the earlier of (i) the Termination Date (as defined in Section 2 hereof) or (ii) the completion of the Vesting Schedule is referred to hereafter as the “Vesting Period.” However, notwithstanding the Vesting Schedule, one hundred (100%) percent of the Shares shall vest and the Vesting Schedule shall be deemed to have been completed in the event (i) a Change of Control of the Company shall occur either (A) prior to December 31, [            ], or (B) if the Company shall have satisfied the Performance Goal by December 31, [          ], between January 1, [          ] and the completion of the Vesting Schedule, and (ii) on the date of such Change of Control, the Participant shall continue to be employed by the Company (or any subsidiary or parent thereof included in the term “Company” as defined in the Plan).  A Change of Control of the Company shall be deemed to have occurred if the Company is a party to any merger, consolidation or sale of assets, or there is a tender offer for the Company’s common stock, or a contested election of the Company’s directors, and as a result of any such event, either (i) the directors of the Company in office immediately before such event cease to constitute a majority of the Board of Directors of the Company, or of the company succeeding to the Company’s business, or (ii) any company, person or entity (including one or more persons and/or entities acting in concert as a group) other than an affiliate of the Company gains “control” (ownership of

more than fifty (50%) percent of the outstanding voting stock of the Company) over the Company.  The concept of “control” shall be deemed to mean the direct or indirect ownership, beneficially or of record, of voting stock of the Company.

2.                                       Forfeiture of Unvested Shares.

If the Participant ceases during the Vesting Period to be employed by the Company (or any subsidiary or parent thereof included in the term “Company” as defined in the Plan) for any reason (except as specifically provided in the following sentence), the Company shall automatically reacquire any of the Shares which have not vested in accordance with Section 1 (the “Unvested Shares”) as of the effective date of such cessation (the “Termination Date”).  In such event, the Participant shall forfeit such Unvested Shares unconditionally and shall have no further right or interest in such Unvested Shares unless the Company agrees in writing to waive its reacquisition right as to some or all of such Unvested Shares.  However, if (i) the Participant ceases during the Vesting Period to be so employed because of death or permanent disability (as determined in the Committee’s sole judgment) and (ii) the Company has satisfied the Performance Goal prior to such cessation of employment, then the Shares which would otherwise be treated as Unvested Shares under the preceding sentence shall instead be treated as Vested Shares. In either such event, the Participant shall forfeit such Unvested Shares unconditionally and shall have no further right or interest in such Unvested Shares unless the Company agrees in writing to waive its reacquisition right as to some or all of such Unvested Shares.

3.                                       Administration of Stock Certificates.

(a)           Concurrently with or promptly following the execution hereof, the Company shall deliver the Unvested Shares either in certificated or uncertificated form (as the Committee shall elect) to American Stock Transfer & Trust Company (such company or any other agent as the Committee may select during the Vesting Period being referred to hereafter as the “Administrative Agent”).  During the Vesting Period, the Administrative Agent shall hold the Shares for the benefit of the Participant, but subject to the provisions of this Agreement. Notwithstanding such deposit of the Shares with the Administrative Agent, the Participant shall retain during the Vesting Period the right to vote and enjoy all other rights and incidents of ownership of the Shares except as may be restricted hereunder.

(b)           During the Vesting Period, the Administrative Agent shall keep true and accurate records of all the Shares. The Company shall indemnify and hold harmless the Administrative Agent against any and all costs or expenses (including attorneys’ fees and expenses), judgments, fines, losses, claims, damages, liabilities and amounts paid in settlement in connection with any claim, action, suit, proceeding or investigation arising out of or pertaining to this Agreement.

(c)           Following the close of each calendar quarter during which any of the Shares shall become Vested Shares, the Administrative Agent shall, upon the written request of the Participant but subject to potential delivery to the Company of a portion of such Vested Shares to the extent required to pay withholding taxes in accordance with Section 7 hereof, deliver to the Participant stock certificates representing such number of Vested Shares which ceased to be Unvested Shares during such calendar quarter. Following the close of the calendar quarter in which there shall remain on deposit with the Administrative Agent no Shares which have not yet become Vested Shares or been forfeited to the Company, but subject to potential delivery to the Company of a portion of such Vested Shares to the extent required to pay withholding taxes in

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accordance with Section 7 hereof, the Administrative Agent shall deliver to the Participant stock certificates representing the Vested Shares (if any) remaining in the possession of the Administrative Agent.  The Participant hereby authorizes the Administrative Agent to deliver to the Company any and all Shares that are forfeited under the provisions of this Agreement or that are required to pay withholding taxes in accordance with Section 7 hereof.

4.                                       Restrictions on Transfer.

The Participant shall not sell, assign, transfer, pledge, hypothecate or otherwise dispose of, by gift, sale, operation of law or otherwise (collectively “transfer”), any Unvested Shares or any interest therein.

5.                                       Effect of Prohibited Transfer.

The Company shall not be required (a) to transfer on its books any of the Shares which shall have been sold or transferred in violation of any of the restrictions imposed by this Agreement, or (b) to treat as owner of such Shares or to pay dividends to any transferee to whom any such Shares shall have been so sold or transferred.

6.                                       Adjustments for Stock Splits, Stock Dividends, Etc.

If from time to time there is any stock split-up, stock dividend, stock distribution or other reclassification of the Common Stock of the Company, any and all new, substituted or additional securities to which the Participant is entitled by reason of Participant’s ownership of Shares shall be immediately subject to the vesting requirements, restrictions on transfer and other provisions of this Agreement in the same manner and to the same extent as such Shares.

7.                                       Withholding Taxes.

(a)           The Participant acknowledges and agrees that in the case of the issuance of Restricted Stock that is “substantially vested” (within the meaning of Treasury Regulations Section 1.83-3(b)), the Committee may require the Participant to remit to the Company an amount sufficient to satisfy any federal, foreign, state or local withholding tax requirements (or make other arrangements satisfactory to the Company with regard to such taxes, including withholding from regular cash compensation, providing other security to the Company, or remitting or foregoing the receipt of Shares having a fair market value on the date of delivery sufficient to satisfy such obligations) prior to the issuance of any Shares pursuant to the grant of Restricted Stock.

(b)           The Participant acknowledges and agrees that in the case of Restricted Stock that is not “substantially vested” upon issuance, if the Committee determines that under applicable law and regulations the Company could be liable for the withholding of any federal, foreign, state or local tax with respect to such Shares, the Committee may require the Participant to remit to the Company an amount sufficient to satisfy any such potential liability (or make other arrangements satisfactory to the Company with respect to such taxes, including withholding from regular cash compensation providing other security to the Company, or remitting or foregoing the receipt of Shares having a fair market value on the date of delivery sufficient to satisfy such obligations). The Participant shall remit such amount to the Company at either (i) the time the Participant makes an election under Section 83(b) of the Internal Revenue Code of 1986, as amended (the “Code”), with respect to such Shares, or (ii) at the time such Shares become

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“substantially vested.” The Participant acknowledges that the Shares of Restricted Stock are subject to the forfeiture obligation under Section 2 of this Agreement and such forfeiture obligation may be treated as a substantial risk of forfeiture within the meaning of Section 83 of the Code, and that, in the absence of an election under Section 83(b) of the Code, such treatment could delay the determination of the tax consequences of the Participant’s receipt of the Shares for both the Company and the Participant (possibly to the Participant’s detriment).  If the Participant files a timely election under Section 83(b) of the Code, the Participant shall provide the Company with an original copy of such timely filed election and a certified mail or overnight courier receipt of such filing within 10 days of the time the election is filed.

8.                                       Severability.

The invalidity or unenforceability of any provision of this Agreement shall not affect the validity or enforceability of any other provision of this Agreement, and each other provision of this Agreement shall be severable and enforceable to the extent permitted by law.

9.                                       Waiver; Termination.

Any provision contained in this Agreement may be waived, either generally or in any particular instance, by the Company. This Agreement may be terminated as provided in the Plan.

10.                                 Binding Effect.

This Agreement shall be binding upon and inure to the benefit of the Company and the Participant and their respective heirs, executors, administrators, legal representatives, successors and assigns, subject to the restrictions on transfer set forth in Section 4 of this Agreement.

11.                                 Notice.

All notices required or permitted hereunder shall be in writing and deemed effectively given (i) upon personal delivery (ii) one (1) day after delivery to an overnight courier service which provides for a receipt upon delivery, or (iii) three (3) days after deposit with the United States Post Office, by registered or certified mail, postage prepaid, addressed, if to the Company, to Clean Harbors, Inc., 42 Longwater Drive, P.O. Box 9149, Norwell, Massachusetts 02061-9149, Attention: Treasurer; and if to the Participant, to the address shown beneath his or her respective signature to this Agreement; or at such other address or addresses as either party shall designate to the other in accordance with this Section 11.

12.                                 Pronouns.

Whenever the context may require, any pronouns used in this Agreement shall include the corresponding masculine, feminine or neuter forms, and the singular form of nouns and pronouns shall include the plural, and vice-versa.

13.                                 Entire Agreement.

This Agreement, together with Attachment A hereto and the Plan, constitutes the entire agreement between the parties, and supersedes all prior agreements and understandings relating to the subject matter of this Agreement.

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14.                                 Amendment.

This Agreement may be amended or modified only by a written instrument executed by both the Company and the Participant.

15.                                 Governing Law.

This Agreement shall be construed, interpreted and enforced in accordance with the laws of the Commonwealth of Massachusetts.

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IN WITNESS WHEREOF, the parties hereto have executed this Agreement as of the Award Date.

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Attachment A

Performance Goal

[                                                    ]

Performance Period

[                                                    ]

Vesting Schedule

[                                                    ]

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