EMPLOYMENT AGREEMENT
	     This EMPLOYMENT AGREEMENT (the Agreement) is made and entered into on this 1st day of
	December, 2006, but as effective as of the date set forth herein, by and between Waste Management,
	Inc. (the Company), and Jeff Harris (the Executive).
	     
	1. Employment.
	     The Company shall employ Executive, and Executive shall be employed by the Company upon the
	terms and subject to the conditions set forth in this Agreement.
	     Executive acknowledges and represents that, any and all prior employment agreements, including
	without limitation certain Employment Agreement between he and the Company dated November 3, 1999,
	is terminated, and that any and all obligations of the Company created thereunder, whether express
	or implied, are null and void and of no further force or effect, and that the only rights,
	obligations and duties between the Company and Executive are those expressly set forth in this
	Agreement.
	     
	2. Term of Employment.
	     The period of Executives employment under this Agreement shall commence on March 30, 2006
	(Employment Date), and shall continue for a period of two (2) years, and shall automatically be
	renewed for successive one (1) year periods on each anniversary of the Employment Date thereafter,
	unless Executives employment is terminated in accordance with Section 5 below. The period during
	which Executive is employed hereunder shall be referred to as the Employment Period.
	     
	3. Duties and Responsibilities.
	     
	(a) 
	Executive shall serve as the Senior Vice President, Midwest Group. In such capacity,
	Executive shall perform such duties and have the power, authority, and functions commensurate with
	such position in similarly-sized public companies, and have and possess such other authority and
	functions consistent with such position as may be assigned to Executive from time to time by the
	Chief Executive Officer, President, Chief Operating Officer or the Board of Directors (the Board)
	of the Company.
	     
	(b) 
	Executive shall devote substantially all of his working time, attention and energies to
	the business of the Company, and its affiliated entities. Executive may make and manage his
	personal investments (provided such investments in other activities do not violate, in any material
	respect, the provisions of Section 10 of this Agreement), be involved in charitable and
	professional activities, and, with the prior written consent of the Board, serve on boards of other
	for profit entities, provided such activities do not materially interfere with the performance of
	his duties hereunder (however, the Board does not typically allow officers to serve on more than
	one public company board at a time).
	 
 
	 
	     
	4. Compensation and Benefits.
	     
	(a) Base Salary.
	During the Employment Period, the Company shall pay Executive a base salary
	at the annual rate of Four Hundred Thirty-Five Thousand Four Dollars ($435,000.00) per year, or
	such higher rate as may be determined from time to time by the Company (Base Salary). Such Base
	Salary shall be paid in accordance with the Companys standard payroll practice for its executive
	officers. Once increased, Base Salary shall not be reduced.
	     
	(b) Annual Bonus.
	During the Employment Period, Executive will be entitled to participate in
	an annual incentive compensation plan of the Company, as established by the Compensation Committee
	of the Board from time to time. Executives target annual bonus will be eighty-five percent (85%)
	of his Base Salary in effect for such year (the Target Bonus), and his actual annual bonus may
	range from 0% to 170% of Base Salary (
	i.e
	., a maximum possible bonus of two times the Target
	Bonus), and will be determined based upon (i) the achievement of certain corporate performance
	goals, as may be established and approved by from time to time by the Compensation Committee of the
	Board, and (ii) the achievement of personal performance goals as may be established by Executives
	immediate supervisor. Executives annual bonus for calendar year 2006 will be prorated between the
	time he spent as Vice-President for the Michigan Market Area (using the applicable financial and
	operational performance objectives, salary, and target bonus) and the time he spent as Senior Vice
	President, Midwest Group. The annual bonus for calendar year 2006 will be paid in 2007, if earned,
	at the same time as similarly situated executive employees receive or would otherwise receive their
	bonuses, subject to the terms of the annual incentive program generally applicable to similarly
	situated employees.
	     
	(c) Benefit Plans and Vacation.
	Subject to the terms of such plans, Executive shall be
	eligible to participate in or receive benefits under any pension plan, profit sharing plan, salary
	deferral plan, medical and dental benefits plan, life insurance plan, short-term and long-term
	disability plans, or any other health, welfare or fringe benefit plan, generally made available by
	the Company to similarly-situated executive employees. The Company shall not be obligated to
	institute, maintain, or refrain from changing, amending, or discontinuing any benefit plan, or
	perquisite, so long as such changes are similarly applicable to similarly situated employees
	generally.
	     During the Employment Period, Executive shall be entitled to vacation each year in accordance
	with the Companys policies in effect from time to time, but in no event less than four (4) weeks
	paid vacation per calendar year.
	     
	(d) Expense Reimbursement.
	The Company shall promptly reimburse Executive for the ordinary
	and necessary business expenses incurred by Executive in the performance of the duties hereunder in
	accordance with the Companys customary practices applicable to its executive officers.
	     
	(e) Other Perquisites.
	Executive shall be entitled to all perquisites provided to Senior Vice
	Presidents of the Company as approved by the Compensation Committee of the Board, and as they may
	exist from time to time, including the following:
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	(i)
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	Automobile allowance at the annual rate of Twelve Thousand Dollars
	($12,000.00), payable in accordance with the Companys standard payroll practice for
	its executive officers and prorated in any year that Executive does not work a full
	calendar year;
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	(ii)
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	Financial planning services at actual cost, and not to exceed Fifteen Thousand
	Dollars ($15,000.00) annually;
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	(iii)
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	Social organization initiation fees and dues with a benefit of a one-time
	initiation fee at actual cost (not to exceed ten percent (10%) of Executives Base
	Salary), and monthly dues at actual cost (not to exceed $500 per month); and
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	(iv)
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	An annual physical examination on a program designated by the Company.
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	(f) Promotional Equity Based Incentive Award.
	Subject to approval by the Compensation
	Committee of the Board, effective on or about the Employment Date, Executive shall be granted a
	one-time, promotional award of 7,000 Restricted Stock Units pursuant to the Waste Management, Inc.
	2004 Stock Incentive Plan. Such Restricted Stock Units will be subject to the restrictions imposed
	by, and governed by the provisions of, the Stock Incentive Plan and the award agreement issued to
	Executive in connection thereto; provided, however, that, unless earlier vested or forfeited
	pursuant to such award agreement, the restrictions on this promotional award will lapse on certain
	anniversary dates of the grant date of the promotional award in accordance with the following
	schedule: first anniversary of the grant date  25%; second anniversary of the grant date  50%;
	third anniversary of the grant date  75%; fourth anniversary of the grant date  100%.
	     
	(g) Initial Office Location and Relocation.
	From the Employment Date until such time as
	Executives daughter graduates from high school, Executive will maintain his residence in Michigan.
	Following that time, Executive will plan to relocate his residence to the Chicago, Illinois area.
	Executives relocation of his residence from Michigan to the Chicago, Illinois area will be
	eligible for coverage under the Companys relocation plan. Any apartment or other residence
	maintained by Executive in Chicago prior to his relocation will be at Executives sole expense.
	     
	5. Termination of Employment.
	     Executives employment hereunder may be terminated during the Employment Period under the
	following circumstances:
	     
	(a) Death.
	Executives employment hereunder shall terminate upon Executives death.
	     
	(b) Total Disability.
	The Company may terminate Executives employment hereunder upon
	Executive becoming Totally Disabled. For purposes of this Agreement, Executive shall be
	considered Totally Disabled if Executive has been physically or mentally incapacitated so as to
	render Executive incapable of performing the essential functions of
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	Executives position with or without reasonable accommodation. Executives receipt of
	disability benefits under the Companys long-term disability plan or receipt of Social Security
	disability benefits shall be deemed conclusive evidence of Total Disability for purpose of this
	Agreement.
	     
	(c) Termination by the Company for Cause.
	The Company may terminate Executives employment
	hereunder for Cause at any time after providing a Notice of Termination for Cause to Executive.
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	(i)
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	For purposes of this Agreement, the term Cause means any of the following:
	(A) willful or deliberate and continual refusal to perform Executives employment
	duties reasonably requested by the Company after receipt of written notice to Executive
	of such failure to perform, specifying such failure (other than as a result of
	Executives sickness, illness or injury) and Executive fails to cure such
	nonperformance within ten (10) days of receipt of said written notice; (B) breach of
	any statutory or common law duty of loyalty to the Company; (C) has been convicted of,
	or pleaded
	nolo contendre
	to, any felony; (D) willfully or intentionally caused
	material injury to the Company, its property, or its assets; (E) disclosed to
	unauthorized person(s) proprietary or confidential information of the Company; (F) any
	material violation or a repeated and willful violation of Company policies or
	procedures, including but not limited to, the Companys Code of Business Conduct and
	Ethics (or any successor policy) then in effect; or (G) breach of any of the covenants
	set forth in Section 10 hereof.
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	(ii)
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	For purposes of this Agreement, the phrase Notice of Termination for Cause
	shall mean a written notice that shall indicate the specific termination provision in
	Section 5(c)(i) relied upon, and shall set forth in reasonable detail the facts and
	circumstances which provide the basis for termination for Cause.
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	(d) Voluntary Termination by Executive.
	Executive may terminate his employment hereunder with
	or without Good Reason at any time upon written notice to the Company.
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	(i)
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	A termination for Good Reason means a resignation of employment by Executive
	by written notice (Notice of Termination for Good Reason) given to the Companys
	Chief Executive Officer or President within ninety (90) days after the occurrence of
	the Good Reason event, unless such circumstances are substantially corrected prior to
	the date of termination specified in the Notice of Termination for Good Reason. For
	purposes of this Agreement, Good Reason shall mean the occurrence or failure to cause
	the occurrence, as the case may be, without Executives express written consent, of any
	of the following circumstances: (A) the Company substantially changes Executives core
	duties or removes Executives responsibility for those core duties, so as to
	effectively cause Executive to no longer be performing the duties of his position
	(except in each case in connection with the termination of Executives employment for
	Death, Total Disability, or Cause, or temporarily as a result of Executives illness or
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	other absence); provided that if the Company becomes a fifty percent or more
	subsidiary of any other entity, Executive shall be deemed to have a substantial
	change in the core duties of his position unless he is also the equivalent of a
	Senior Vice-President of the Company or such other successor entity of the ultimate
	parent entity; (B) removal or the non-reelection of Executive from the officer
	position with the Company specified herein, or removal of Executive from any of his
	then officer positions; (C) any material breach by the Company of any provision of
	this Agreement, including without limitation Section 10 hereof; or (D) failure of
	any successor to the Company (whether direct or indirect and whether by merger,
	acquisition, consolidation or otherwise) to assume in a writing delivered to
	Executive upon the assignee becoming such, the obligations of the Company hereunder.
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	(ii)
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	A Notice of Termination for Good Reason shall mean a notice that shall
	indicate the specific termination provision relied upon and shall set forth in
	reasonable detail the facts and circumstances claimed to provide a basis for
	Termination for Good Reason. The failure by Executive to set forth in the Notice of
	Termination for Good Reason any facts or circumstances which contribute to the showing
	of Good Reason shall not waive any right of Executive hereunder or preclude Executive
	from asserting such fact or circumstance in enforcing his rights hereunder. The Notice
	of Termination for Good Reason shall provide for a date of termination not less than
	ten (10) nor more than sixty (60) days after the date such Notice of Termination for
	Good Reason is given, provided that in the case of the events set forth in Sections
	5(d)(i)(A) or (B), the date may be five (5) business days after the giving of such
	notice. The Company, at its sole discretion, may waive this requirement.
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	(e) Termination by the Company without Cause.
	The Company may terminate Executives
	employment hereunder without Cause at any time upon written notice to Executive.
	     
	(f) Effect of Termination.
	Upon any termination of employment for any reason, Executive shall
	immediately resign from all Board memberships and other positions with the Company or any of its
	subsidiaries held by him at such time.
	     
	6. Compensation Following Termination of Employment.
	     In the event that Executives employment hereunder is terminated in a manner as set forth in
	Section 5 above, Executive shall be entitled to the compensation and benefits provided under this
	Section 6, in each case subject to potential reduction as may be required by Section 23, as
	applicable to the form of termination:
	     
	(a) Termination by Reason of Death.
	In the event that Executives employment is terminated by
	reason of Executives death, the Company shall pay the following amounts to Executives beneficiary
	or estate:
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	(i)
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	Any accrued but unpaid Base Salary for services rendered to the date of death,
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	any accrued but unpaid expenses required to be reimbursed under this Agreement, any
	vacation accrued to the date of termination, any earned but unpaid bonuses for any
	prior calendar year, and, to the extent not otherwise paid, a pro-rata bonus or
	incentive compensation payment for the current calendar year to the extent payments
	are awarded to senior executives of the Company and paid at the same time as senior
	executives are paid.
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	(ii)
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	Any benefits to which Executive may be entitled pursuant to the plans, policies
	and arrangements (including those referred to in Section 4(c) hereof), as determined
	and paid in accordance with the terms of such plans, policies and arrangements.
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	(b) Termination by Reason of Total Disability.
	In the event that Executives employment is
	terminated by the Company by reason of Executives Total Disability (as determined in accordance
	with Section 5(b)), the Company shall pay the following amounts to Executive:
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	(i)
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	Any accrued but unpaid Base Salary for services rendered to the date of
	termination, any accrued but unpaid expenses required to be reimbursed under this
	Agreement, any vacation accrued to the date of termination, and any earned but unpaid
	bonuses for any prior calendar year. Executive shall also be eligible for a pro-rata
	bonus or incentive compensation payment for the current calendar year to the extent
	such awards are made to senior executives of the Company for the year in which
	Executive is terminated, and to the extent not otherwise paid to Executive.
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	(ii)
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	Any benefits to which Executive may be entitled pursuant to the plans, policies
	and arrangements (including those referred to in Section 4(c) hereof) shall be
	determined and paid in accordance with the terms of such plans, policies and
	arrangements.
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	(c) Termination for Cause.
	In the event that Executives employment is terminated by the
	Company for Cause, the Company shall pay the following amounts to Executive:
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	(i)
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	Any accrued but unpaid Base Salary for services rendered to the date of
	termination, any accrued but unpaid expenses required to be reimbursed under this
	Agreement, any vacation accrued to the date of termination, and any earned but unpaid
	bonuses for any prior calendar year.
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	(ii)
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	Any benefits to which Executive may be entitled pursuant to the plans, policies
	and arrangements (including those referred to in Section 4(c) hereof up to the date of
	termination) shall be determined and paid in accordance with the terms of such plans,
	policies and arrangements.
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	(d) Voluntary Termination by Executive.
	In the event that Executive voluntarily terminates
	employment other than for Good Reason, the Company shall pay the following
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	amounts to Executive:
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	(i)
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	Any accrued but unpaid Base Salary for services rendered to the date of
	termination, any accrued but unpaid expenses required to be reimbursed under this
	Agreement, any vacation accrued to the date of termination, and any earned but unpaid
	bonuses for any prior calendar year.
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	(ii)
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	Any benefits to which Executive may be entitled pursuant to the plans, policies
	and arrangements (including those referred to in Section 4(c) hereof up to the date of
	termination) shall be determined and paid in accordance with the terms of such plans,
	policies and arrangements.
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	(e) Termination by the Company Without Cause Outside a Change in Control Period; Termination
	by Executive for Good Reason Outside a Change in Control Period.
	In the event that Executives
	employment is terminated by the Company outside a Change in Control Period (as defined in Section
	7) for reasons other than death, Total Disability or Cause, or Executive terminates his employment
	for Good Reason outside of a Change in Control Period, the Company shall pay the following amounts
	to Executive:
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	(i)
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	Any accrued but unpaid Base Salary for services rendered to the date of
	termination, any accrued but unpaid expenses required to be reimbursed under this
	Agreement, any vacation accrued to the date of termination, and any earned but unpaid
	bonuses for any prior calendar year.
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	(ii)
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	Any benefits to which Executive may be entitled pursuant to the plans, policies
	and arrangements referred to in Section 4(c) hereof shall be determined and paid in
	accordance with the terms of such plans, policies and arrangements.
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	(iii)
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	Subject to Executives execution of the Release (as defined in Section 7), an
	amount equal to two times the sum of Executives Base Salary plus his Target Annual
	Bonus (in each case, as then in effect), of which one-half shall be paid in a lump sum
	within ten (10) days after such termination and one-half shall be paid during the two
	(2) year period beginning on the date of Executives termination and shall be paid at
	the same time and in the same manner as Base Salary would have been paid if Executive
	had remained in active employment until the end of such period.
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	(iv)
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	Subject to Executives execution of the Release (as defined in Section 7), the
	Company at its expense will continue for Executive and Executives spouse and
	dependents, all health benefit plans, programs or arrangements, whether group or
	individual, disability, and other benefit plans, in which Executive was entitled to
	participate at any time during the twelve-month period prior to the date of
	termination, until the earliest to occur of (A) two years after the date of
	termination; (B) Executives death (provided that benefits provided to Executives
	spouse and dependents shall not terminate upon Executives death); or (C) with respect
	to any particular plan, program or arrangement, the date Executive
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	becomes eligible to participate in a comparable benefit provided by a subsequent
	employer. In the event that Executives continued participation in any such Company
	plan, program, or arrangement is prohibited, the Company will arrange to provide
	Executive with benefits substantially similar to those which Executive would have
	been entitled to receive under such plan, program, or arrangement, for such period
	on a basis which provides Executive with no additional after tax cost.
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	(v)
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	Subject to Executives execution of the Release (as defined in Section 7),
	Executive shall be eligible for a bonus or incentive compensation payment, at the same
	time, on the same basis, and to the same extent payments are made to senior executives
	of the Company, pro-rated for the fiscal year in which Executive is terminated.
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	(f) Suspension and Refund of Termination Benefits for Subsequently Discovered Cause.
	Notwithstanding any provision of this Agreement to the contrary, if within one (1) year of
	termination of employment of Executive by the Company for any reason other than for Cause, it is
	determined by Company that Executive could have been terminated for Cause then, to the extent
	permitted by law:
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	(i)
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	the Company may elect to cancel any and all payments of any benefits otherwise
	due Executive, but not yet paid, under this Agreement or otherwise; and
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	(ii)
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	Executive will refund to the Company any amounts, plus interest, previously
	paid by Company to Executive pursuant to Subsections 6(e)(iii), 6(e)(iv) or 6(e)(v).
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	7. Resignation by Executive for Good Reason or Termination by Company Without Cause During a
	Change in Control Period.
	     
	(a) Certain Terminations During a Change in Control Period.
	Subject to potential reduction as
	may be required by Section 23, in the event a Change in Control occurs and (x) Executive terminates
	his employment for Good Reason during a Change in Control Period , or (y) the Company terminates
	Executives employment without Cause (and for reason other than Death of Total Disability) during a
	Change in Control Period, the Company shall, subject to Executives execution of the Release (as
	defined in this Section 7), pay the following amounts to Executive:
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	(i)
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	The payments and benefits provided for in Section 6(e), except that (A) the
	amount and period with respect to which severance is calculated pursuant to Section
	6(e)(iii) will be three (3) years and the amount shall be paid in a lump-sum and (B)
	the benefit continuation period in Section 6(e)(iv) shall be for three (3) years.
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	(ii)
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	Executive shall also receive a bonus or incentive compensation payment for the
	calendar year of the termination, payable at 100% of the maximum bonus available to
	Executive, pro-rated as of the effective date of the termination. Such bonus payment
	shall be payable within five (5) days after the effective date of
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	Executives termination. Except as may be provided under this Section 7 or under
	the terms of any incentive compensation, employee benefit, or fringe benefit plan
	applicable to Executive at the time of Executives termination of employment,
	Executive shall have no right to receive any other compensation, or to participate
	in any other plan, arrangement or benefit, with respect to future periods after such
	resignation or termination.
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	(b) Certain Definitions.
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	(i)
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	For purposes of this Agreement, Change in Control means the first to occur on
	or after the date on which this Agreement is first signed, the occurrence of any of the
	following events:
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	(A) any Person is or becomes the Beneficial Owner, directly or indirectly, of
	securities of the Company representing twenty-five percent (25%) or more of the
	combined voting power of the Companys then outstanding voting securities;
	(B) the following individuals cease for any reason to constitute a majority of the
	number of directors then serving: individuals who, on the Commencement Date,
	constitute the Board and any new director (other than a director whose initial
	assumption of office is in connection with an actual or threatened election contest,
	including but not limited to a consent solicitation, relating or the election of
	directors of the Company) whose appointment or election by the Board or nomination
	for election by the Companys stockholders was approved or recommended by a vote of
	at least two-thirds (2/3rds) of the directors then still in office who either were
	directors on the Commencement Date or whose appointment, election or nomination for
	election was previously so approved or recommended (the Incumbent Board);
	(C) there is a consummated merger or consolidation of the Company with any other
	corporation, other than (1) a merger or consolidation which would result in the
	voting securities of the Company outstanding immediately prior thereto continuing to
	represent (either by remaining outstanding or by being converted into voting
	securities of the surviving or parent entity) more than fifty percent (50%) of the
	combined voting power of the voting securities of the Company or such surviving or
	parent entity outstanding immediately after such merger or consolidation or (2) a
	merger or consolidation effected to implement a recapitalization of the Company (or
	similar transaction) in which no Person, directly or indirectly, acquired
	twenty-five percent (25%) or more of the combined voting power of the Companys then
	outstanding securities; or
	(D) the stockholders of the Company approve a plan of complete liquidation of the
	Company or there is consummated an agreement for the sale or disposition by the
	Company of all or substantially all of the Companys assets (or any transaction
	having a similar effect), other than a sale or disposition by the Company of all or
	substantially all of the Companys assets to an entity, at least fifty percent (50%)
	of the combined voting power of the voting securities of
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	which are owned by stockholders of the Company in substantially the same proportions
	as their ownership of the Company immediately prior to such sale.
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	(ii)
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	For purposes of this Section 7, Beneficial Owner shall have the meaning set
	forth in Rule 13d-3 under the Exchange Act;
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	(iii)
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	For purposes of this Agreement, Change in Control Period means the period
	commencing on the date occurring six months immediately prior to the date on which a
	Change in Control occurs and ending on the second anniversary of the date on which a
	Change in Control occurs.
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	(iv)
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	For purposes of this Agreement, Exchange Act means the Securities and
	Exchange Act of 1934, as amended from time to time;
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	(v)
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	For purposes of this Section 7, Person shall have the meaning set forth in
	Section 3(a)(9) of the Exchange Act, as modified and used in Sections 13(d) and 14(d)
	thereof, except that such term shall not include (1) the Company, (2) a trustee or
	other fiduciary holding securities under an employee benefit plan of the Company, (3)
	an employee benefit plan of the Company, (4) an underwriter temporarily holding
	securities pursuant to an offering of such securities or (5) a corporation owned,
	directly or indirectly, by the stockholders of the Company in substantially the same
	proportions as their ownership of shares of Common Stock of the Company.
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	(vi)
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	For purposes of this Agreement, Release means that specific document which
	the Company shall present to Executive for consideration and execution after any
	termination of employment pursuant to Section 5(e) and Section 6(e), wherein if he
	agrees to such, he will irrevocably and unconditionally release and forever discharge
	the Company, it subsidiaries, affiliates and related parties from any and all causes of
	action which Executive at that time had or may have had against the Company (excluding
	any claim for indemnity under this Agreement, any claim under state workers
	compensation or unemployment laws, or any claim under COBRA).
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	8. No Other Benefits or Compensation.
	Except as may be provided under this Agreement, or
	under the terms of any incentive compensation, employee benefit, or fringe benefit plan applicable
	to Executive at the time of Executives termination or resignation, Executive shall have no right
	to receive any other compensation, or to participate in any other plan, arrangement or benefit,
	with respect to future periods after such termination or resignation.
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	9. No Mitigation; No Set-Off.
	In the event of any termination of employment hereunder,
	Executive shall be under no obligation to seek other employment, and there shall be no offset
	against any amounts due Executive under this Agreement on account of any remuneration attributable
	to any subsequent employment that Executive may obtain. The amounts payable hereunder shall not be
	subject to setoff, counterclaim, recoupment, defense or other right which the Company may have
	against Executive or others, except upon obtaining by the Company of a final non-appealable
	judgment against Executive.
	     
	10. Covenants
	     
	(a) Company Property
	. All written materials, records, data, and other documents prepared or
	possessed by Executive during Executives employment with the Company are the Companys property.
	All information, ideas, concepts, improvements, discoveries, and inventions that are conceived,
	made, developed, or acquired by Executive individually or in conjunction with others during
	Executives employment (whether during business hours and whether on the Companys premises or
	otherwise) which relate to the Companys business, products, or services are the Companys sole and
	exclusive property. All memoranda, notes, records, files, correspondence, drawings, manuals,
	models, specifications, computer programs, maps, and all other documents, data, or materials of any
	type embodying such information, ideas, concepts, improvements, discoveries, and inventions are the
	Companys property. At the termination of Executives employment with the Company for any reason,
	Executive shall return all of the Companys documents, data, or other Company property to the
	Company.
	     
	(b) Confidential Information; Non-Disclosure
	. Executive acknowledges that the business of the
	Company is highly competitive and that the Company has provided and will continue to provide
	Executive with access to Confidential Information relating to the business of the Company and its
	affiliates.
	     For purposes of this Agreement, Confidential Information means and includes the Companys
	confidential and/or proprietary information and/or trade secrets that have been developed or used
	and/or will be developed and that cannot be obtained readily by third parties from outside sources.
	Confidential Information includes, by way of example and without limitation, the following
	information regarding customers, employees, contractors, and the industry not generally known to
	the public; strategies, methods, books, records, and documents; technical information concerning
	products, equipment, services, and processes; procurement procedures and pricing techniques; the
	names of and other information concerning customers, investors, and business affiliates (such as
	contact name, service provided, pricing for that customer, type and amount of services used,
	credit and financial data, and/or other information relating to the Companys relationship with
	that customer); pricing strategies and price curves; positions, plans, and strategies for expansion
	or acquisitions; budgets; customer lists; research; weather data; financial and sales data; trading
	methodologies and terms; evaluations, opinions, and interpretations of information and data;
	marketing and merchandising techniques; prospective customers names and marks; grids and maps;
	electronic databases; models; specifications; computer programs; internal business records;
	contracts benefiting or obligating the Company; bids or proposals submitted to any third party;
	technologies and methods; training methods and training processes; organizational structure;
	personnel information, including
	11
 
	 
	salaries of personnel; payment amounts or rates paid to consultants or other service
	providers; and other such confidential or proprietary information. Information need not qualify as
	a trade secret to be protected as Confidential Information under this Agreement, and the authorized
	and controlled disclosure of Confidential Information to authorized parties by Company in the
	pursuit of its business will not cause the information to lose its protected status under this
	Agreement. Executive acknowledges that this Confidential Information constitutes a valuable,
	special, and unique asset used by the Company or its affiliates in their businesses to obtain a
	competitive advantage over their competitors. Executive further acknowledges that protection of
	such Confidential Information against unauthorized disclosure and use is of critical importance to
	the Company and its affiliates in maintaining their competitive position.
	     Executive has and will continue to have access to, or knowledge of, Confidential Information
	of third parties, such as actual and potential customers, suppliers, partners, joint venturers,
	investors, financing sources, and the like, of the Company and its affiliates.
	     The Company also agrees to provide Executive with one or more of the following: access to
	Confidential Information; specialized training regarding the Companys methodologies and business
	strategies, and/or support in the development of goodwill such as introductions, information and
	reimbursement of customer development expenses consistent with Company policy. The foregoing is
	not contingent on continued employment, but is contingent upon Executives use of the Confidential
	Information access, specialized training, and goodwill support provided by Company for the
	exclusive benefit of the Company and upon Executives full compliance with the restrictions on
	Executives conduct provided for in this Agreement.
	     In addition to the requirements set forth in Section 5(c)(i), Executive agrees that Executive
	will not after Executives employment with the Company, make any unauthorized disclosure of any
	then Confidential Information or specialized training of the Company or its affiliates, or make any
	use thereof, except in the carrying out of his employment responsibilities hereunder. Executive
	also agrees to preserve and protect the confidentiality of third party Confidential Information to
	the same extent, and on the same basis, as the Companys Confidential Information.
	     
	(c) Unfair Competition Restrictions
	. The Company agrees to and shall provide Executive with
	immediate access to Confidential Information. Ancillary to the rights provided to Executive
	following employment termination, the Companys provision of Confidential Information, specialized
	training, and/or goodwill support to Executive, and Executives agreements, regarding the use of
	same, and in order to protect the value of the above-referenced stock options, any restricted
	stock, training, goodwill support and/or the Confidential Information described above, the Company
	and Executive agree to the following provisions against unfair competition. Executive agrees that
	for a period of two (2) years following the termination of employment for any reason (Restricted
	Term), Executive will not, directly or indirectly, for Executive or for others, anywhere in the
	United States (including all parishes in Louisiana, and Puerto Rico) (the Restricted Area) do the
	following, unless expressly authorized to do so in writing by the Chief Executive Officer of the
	Company:
	12
 
	 
	Engage in, or assist any person, entity, or business engaged in, the
	selling or providing of products or services that would displace the
	products or services that (i) the Company is currently in the
	business of providing and was in the business of providing, or was
	planning to be in the business of providing, at the time Executive
	was employed with the Company, and (ii) that Executive had
	involvement in or received Confidential Information about in the
	course of employment; the foregoing is expressly understood to
	include, without limitation, the business of the collection,
	transfer, recycling and resource recovery, or disposal of solid
	waste, hazardous or other waste, including the operation of
	waste-to-energy facilities.
	     It is further agreed that during the Restricted Term, Executive cannot engage in any of the
	enumerated prohibited activities in the Restricted Area by means of telephone, telecommunications,
	satellite communications, correspondence, or other contact from outside the Restricted Area.
	Executive further understands that the foregoing restrictions may limit his ability to engage in
	certain businesses during the Restricted Term, but acknowledges that these restrictions are
	necessary to protect the Confidential Information the Company has provided to Executive.
	     A failure to comply with the foregoing restrictions will create a presumption that Executive
	is engaging in unfair competition. Executive agrees that this Section defining unfair competition
	with the Company does not prevent Executive from using and offering the skills that Executive
	possessed prior to receiving access to Confidential Information, confidential training, and
	knowledge from the Company. This Agreement creates an advance approval process, and nothing
	herein is intended, or will be construed as, a general restriction against the pursuit of lawful
	employment in violation of any controlling state or federal laws. Executive shall be permitted to
	engage in activities that would otherwise be prohibited by this covenant if such activities are
	determined in the sole discretion of the Chief Executive Officer of the Company to be no material
	threat to the legitimate business interests of the Company.
	     
	(d) Non-Solicitation of Customers
	. For a period of two (2) years following the termination of
	employment for any reason, Executive will not call on, service, or solicit competing business from
	customers of the Company or its affiliates whom Executive, within the previous twelve (12) months,
	(i) had or made contact with, or (ii) had access to information and files about, or induce or
	encourage any such customer or other source of ongoing business to stop doing business with
	Company.
	     
	(e) Non-Solicitation of Employees
	. During Executives employment, and for a period of two (2)
	years following the termination of employment for any reason, Executive will not, either directly
	or indirectly, call on, solicit, encourage, or induce any other employee or officer of the Company
	or its affiliates whom Executive had contact with, knowledge of, or association within the course
	of employment with the Company to terminate his employment, and will not assist any other person or
	entity in such a solicitation.
	13
 
	 
	     
	(f) Non-Disparagement.
	Executive covenants and agrees that Executive shall not engage in any
	pattern of conduct that involves the making or publishing of written or oral statements or remarks
	(including, without limitation, the repetition or distribution of derogatory rumors, allegations,
	negative reports or comments) which are disparaging, deleterious or damaging to the integrity,
	reputation or good will of the Company, its management, or of management of corporations affiliated
	with the Company.
	     
	11. Enforcement of Covenants.
	     
	(a) Termination of Employment and Forfeiture of Compensation.
	Executive agrees that any
	breach by Executive of any of the covenants set forth in Section 10 hereof during Executives
	employment by the Company, shall be grounds for immediate dismissal of Executive for Cause pursuant
	to Section 5(c)(i), which shall be in addition to and not exclusive of any and all other rights and
	remedies the Company may have against Executive.
	     
	(b) Right to Injunction
	. Executive acknowledges that a breach of the covenants set forth in
	Section 10 hereof will cause irreparable damage to the Company with respect to which the Companys
	remedy at law for damages will be inadequate. Therefore, in the event of breach or anticipatory
	breach of the covenants set forth in this section by Executive, Executive and the Company agree
	that the Company shall be entitled to seek the following particular forms of relief, in addition to
	remedies otherwise available to it at law or equity: (A) injunctions, both preliminary and
	permanent, enjoining or restraining such breach or anticipatory breach and Executive hereby
	consents to the issuance thereof forthwith and without bond by any court of competent jurisdiction;
	and (B) recovery of all reasonable sums as determined by a court of competent jurisdiction expended
	and costs, including reasonable attorneys fees, incurred by the Company to enforce the covenants
	set forth in this section.
	     
	(c) Separability of Covenants.
	The covenants contained in Section 10 hereof constitute a
	series of separate but ancillary covenants, one for each applicable State in the United States and
	the District of Columbia, and one for each applicable foreign country. If in any judicial
	proceeding, a court shall hold that any of the covenants set forth in Section 10 exceed the time,
	geographic, or occupational limitations permitted by applicable laws, Executive and the Company
	agree that such provisions shall and are hereby reformed to the maximum time, geographic, or
	occupational limitations permitted by such laws. Further, in the event a court shall hold
	unenforceable any of the separate covenants deemed included herein, then such unenforceable
	covenant or covenants shall be deemed eliminated from the provisions of this Agreement for the
	purpose of such proceeding to the extent necessary to permit the remaining separate covenants to be
	enforced in such proceeding. Executive and the Company further agree that the covenants in Section
	10 shall each be construed as a separate agreement independent of any other provisions of this
	Agreement, and the existence of any claim or cause of action by Executive against the Company
	whether predicated on this Agreement or otherwise, shall not constitute a defense to the
	enforcement by the Company of any of the covenants of Section 10.
	     
	12. Indemnification.
	     The Company shall indemnify and hold harmless Executive to the fullest extent permitted
	14
 
	 
	by Delaware law for any action or inaction of Executive while serving as an officer and
	director of the Company or, at the Companys request, as an officer or director of any other entity
	or as a fiduciary of any benefit plan. This provision includes the obligation and undertaking of
	Executive to reimburse the Company for any fees advanced by the Company on behalf of Executive
	should it later be determined that Executive was not entitled to have such fees advanced by the
	Company under Delaware law. The Company shall cover Executive under directors and officers
	liability insurance both during and, while potential liability exists, after the Employment Period
	in the same amount and to the same extent as the Company covers its other officers and directors.
	     
	13. Arbitration.
	     Except with respect to enforcement of the covenants contained in Section 11 herein, the
	parties agree that any dispute relating to this Agreement, or to the breach of this Agreement,
	arising between Executive and the Company shall be settled by arbitration in accordance with the
	Federal Arbitration Act and the commercial arbitration rules of the American Arbitration
	Association (AAA), or any other mutually agreed upon arbitration service. The arbitration
	proceeding, including the rendering of an award, shall take place in Houston, Texas, and shall be
	administered by the AAA (or any other mutually agreed upon arbitration service). The arbitrator
	shall be jointly selected by the Company and Executive within thirty (30) days of the notice of
	dispute, or if the parties cannot agree, in accordance with the commercial arbitration rules of the
	AAA (or any other mutually agreed upon arbitration service). All fees and expenses associated with
	the arbitration shall be borne equally by Executive and the Company during the arbitration, pending
	final decision by the arbitrator as to who should bear fees, unless otherwise ordered by the
	arbitrator. The arbitrator shall not be authorized to create a cause of action or remedy not
	recognized by applicable state or federal law. The award of the arbitrator shall be final and
	binding upon the parties without appeal or review, except as permitted by the arbitration laws of
	the State of Texas. The award shall be enforceable through a court of law upon motion of either
	party.
	     
	14. Disputes and Payment of Attorneys Fees.
	     If at any time during the term of this Agreement or afterwards there should arise any dispute
	as to the validity, interpretation or application of any term or condition of this Agreement, the
	Company agrees, upon written demand by Executive (and Executive shall be entitled upon application
	to any court of competent jurisdiction, to the entry of a mandatory injunction, without the
	necessity of posting any bond with respect thereto, compelling the Company) to promptly provide
	sums sufficient to pay on a current basis (either directly or by reimbursing Executive) Executives
	costs and reasonable attorneys fees (including expenses of investigation and disbursements for the
	fees and expenses of experts, etc.) incurred by Executive in connection with any such dispute or
	any litigation, provided that Executive shall repay any such amounts paid or advanced if Executive
	is not the prevailing party with respect to at least one material claim or issue in such dispute or
	litigation. The provisions of this Section 11, without implication as to any other section hereof,
	shall survive the expiration or termination of this Agreement and of Executives employment
	hereunder.
	          
	15. Requirement of Timely Payments.
	15
 
	 
	     If any amounts which are required, or determined to be paid or payable, or reimbursed or
	reimbursable, to Executive under this Agreement (or any other plan, agreement, policy or
	arrangement with the Company) are not so paid promptly at the times provided herein or therein,
	such amounts shall accrue interest, compounded daily, at an 8% annual percentage rate, from the
	date such amounts were required or determined to have been paid or payable, reimbursed or
	reimbursable to Executive, until such amounts and any interest accrued thereon are finally and
	fully paid, provided, however, that in no event shall the amount of interest contracted for,
	charged or received hereunder, exceed the maximum non-usurious amount of interest allowed by
	applicable law.
	     
	16. Withholding of Taxes.
	     The Company may withhold from any compensation and benefits payable under this Agreement all
	applicable federal, state, local, or other taxes.
	     
	17. Source of Payments.
	     All payments provided under this Agreement, other than payments made pursuant to a plan which
	provides otherwise, shall be paid from the general funds of the Company, and no special or separate
	fund shall be established, and no other segregation of assets made, to assure payment. Executive
	shall have no right, title or interest whatever in or to any investments which the Company may make
	to aid the Company in meeting its obligations hereunder. To the extent that any person acquires a
	right to receive payments from the Company hereunder, such right shall be no greater than the right
	of an unsecured creditor of the Company.
	     
	18. Assignment.
	     Except as otherwise provided in this Agreement, this Agreement shall inure to the benefit of
	and be binding upon the parties hereto and their respective heirs, representatives, successors and
	assigns. This Agreement shall not be assignable by Executive (but any payments due hereunder which
	would be payable at a time after Executives death shall be paid to Executives designated
	beneficiary or, if none, his estate) and shall be assignable by the Company only to any financially
	solvent corporation or other entity resulting from the reorganization, merger or consolidation of
	the Company with any other corporation or entity or any corporation or entity to or with which the
	Companys business or substantially all of its business or assets may be sold, exchanged or
	transferred, and it must be so assigned by the Company to, and accepted as binding upon it by, such
	other corporation or entity in connection with any such reorganization, merger, consolidation,
	sale, exchange or transfer in a writing delivered to Executive in a form reasonably acceptable to
	Executive (the provisions of this sentence also being applicable to any successive such
	transaction).
	16
 
	 
	     
	19. Entire Agreement; Amendment.
	     This Agreement shall supersede any and all existing oral or written agreements,
	representations, or warranties between Executive and the Company or any of its subsidiaries or
	affiliated entities relating to the terms of Executives employment by the Company. It may not be
	amended except by a written agreement signed by both parties.
	     
	20. Governing Law.
	     This Agreement shall be governed by and construed in accordance with the laws of the State of
	Texas applicable to agreements made and to be performed in that State, without regard to its
	conflict of laws provisions.
	     
	21. Notices.
	     Any notice, consent, request or other communication made or given in connection with this
	Agreement shall be in writing and shall be deemed to have been duly given when delivered or mailed
	by registered or certified mail, return receipt requested, or by facsimile or by hand delivery, to
	those listed below at their following respective addresses or at such other address as each may
	specify by notice to the others:
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	To the Company:
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	Waste Management , Inc.
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	1001 Fannin, Suite 4000
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	Houston, Texas 77002
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	Attention: Corporate Secretary
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	To Executive:
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	At the address for Executive set forth below.
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	22. Miscellaneous.
	     
	(a) Waiver.
	The failure of a party to insist upon strict adherence to any term of this
	Agreement on any occasion shall not be considered a waiver thereof or deprive that party of the
	right thereafter to insist upon strict adherence to that term or any other term of this Agreement.
	     
	(b) Separability.
	Subject to Section 11 hereof, if any term or provision of this Agreement is
	declared illegal or unenforceable by any court of competent jurisdiction and cannot be modified to
	be enforceable, such term or provision shall immediately become null and void, leaving the
	remainder of this Agreement in full force and effect.
	     
	(c) Headings.
	Section headings are used herein for convenience of reference only and shall
	not affect the meaning of any provision of this Agreement.
	     
	(d) Rules of Construction.
	Whenever the context so requires, the use of the singular shall be
	deemed to include the plural and vice versa.
	     
	(e) Counterparts.
	This Agreement may be executed in any number of counterparts,
	17
 
	 
	each of which so executed shall be deemed to be an original, and such counterparts will
	together constitute but one Agreement.
	     
	23. Potential Limitation on Severance Benefits.
	     
	(a) Maximum Severance Amount.
	Notwithstanding any provision in this Agreement to the
	contrary, in the event of a qualifying termination (or resignation) under Section 6(e) or Section 7
	of this Agreement it is determined by the Company that the present value of payments or
	distributions by the Company, its subsidiaries or affiliated entities to or for the benefit of
	Executive (whether paid or provided pursuant to the terms of this Agreement or otherwise)
	(Severance Benefits) would exceed 2.99 times the sum of Executives then current base salary and
	target bonus (the Maximum Severance Amount), then the aggregate present value of the Severance
	Benefits provided to Executive shall be reduced by the Company to the Reduced Amount. The Reduced
	Amount shall be an amount, expressed in present value, that maximizes the aggregate present value
	of the Severance Benefits without exceeding the Maximum Severance Amount.
	     
	(b) Calculation of Maximum Severance Amount.
	For purposes of determining the Maximum
	Severance Amount under this Section 23, benefits included in the calculation of the Maximum
	Severance Amount will include: (i) cash amounts payable by the Company in the event of termination
	of Executives employment; and (ii) the present value of benefits or perquisites provided for
	periods after termination of employment (but excluding benefits or perquisites provided to
	employees generally). The calculation of the Maximum Severance Amount will not include the
	following benefits: (i) payments of salary, bonus or performance award amounts that had accrued at
	the time of termination; (ii) payments based on accrued qualified and non-qualified deferred
	compensation plans, including retirement and savings benefits; (iii) any benefits or perquisites
	provided under plans or programs applicable to employees generally; (iv) amounts paid as part of
	any agreement intended to make-whole any forfeiture of benefits from a prior employer; (v)
	amounts paid for services following termination of employment for a reasonable consulting agreement
	for a period not to exceed one year; (vi) amounts paid for post-termination covenants (such as a
	covenant not to compete); (vii) the value of accelerated vesting or payment of any outstanding
	equity-based award; and (viii) any payment that the Board or any committee thereof determines in
	good faith to be a reasonable settlement of any claim made against the Company.
	     
	(c) Possible Further Reduction.
	Following application of Section 23(b), in the event that
	the payment of the remaining Severance Benefits to Executive (including any payment or benefit
	received in connection with a Change in Control or the termination of Executives employment),
	would be subject (in whole or part), to any excise tax imposed under section 4999 of the Code (the
	Excise Tax), then the cash portion of the Severance Benefits shall first be further reduced, and
	the non-cash Severance Benefits shall thereafter be further reduced, to the extent necessary so
	that no portion of the Severance Benefits is subject to the Excise Tax, but only if (i) the net
	amount of the Severance Benefits to be received by Executive, as so additionally reduced by this
	Section 23(c) (and after subtracting the net amount of federal, state and local income taxes on
	such additionally reduced Severance Benefits and after taking into
	18
 
	 
	account the phase out of itemized deductions and personal exemptions attributable to such
	additionally reduced Severance Benefits) is greater than or equal to (ii) the net amount of the
	Severance Benefits to be received by Executive without such additional reduction (but after
	subtracting the net amount of federal, state and local income taxes on such Severance Benefits and
	the amount of Excise Tax to which Executive would be subject in respect of such unreduced Severance
	Benefits and after taking into account the phase out of itemized deductions and personal exemptions
	attributable to such unreduced Severance Benefits ); provided, however, that Executive may elect to
	have the non-cash portion of the Severance Benefits reduced (or eliminated) prior to any reduction
	of the cash portion of the Severance Benefits.
	     
	(d) Calculation of Excise Tax.
	For purposes of determining whether and the extent to which
	portions of the Severance Benefits will be subject to the Excise Tax, (i) no portion of the
	Severance Benefits the receipt or enjoyment of which Executive shall have waived at such time and
	in such manner as not to constitute a payment within the meaning of section 280G(b) of the Code
	shall be taken into account, (ii) no portion of the Severance Benefits shall be taken into account
	which, in the opinion of tax counsel (Tax Counsel) who is reasonably acceptable to Executive and
	selected by the accounting firm (the Auditor) which was, immediately prior to the Change in
	Control, the Companys independent auditor, does not constitute a parachute payment within the
	meaning of section 280G(b)(2) of the Code (including by reason of section 280G(b)(4)(A) of the
	Code) and, in calculating the Excise Tax, no portion of such Severance Benefits shall be taken into
	account which, in the opinion of Tax Counsel, constitutes reasonable compensation for services
	actually rendered, within the meaning of section 280G(b)(4)(B) of the Code, in excess of the base
	amount (as defined in section 280G(b)(3) of the Code) allocable to such reasonable compensation,
	and (iii) the value of any non-cash benefit or any deferred payment or benefit included in the
	Severance Benefits shall be determined by the Auditor in accordance with the principles of sections
	280G(d)(3) and (4) of the Code.
	     
	(e) Determination of Present Value.
	For purposes of this Section 23, the present value of
	Severance Benefits shall be determined in accordance with section 280G(d)(4) of the Code.
	     
	24. Code Section 409A.
	     It is the intention of the Company and Executive that his Agreement not result in an
	unfavorable tax consequences to Executive under Section 409A of the Code (Section 409A).
	Executive consents to any amendment of this Agreement as the Company may reasonably make in
	furtherance of such intention, and the Company shall promptly provide, or make available to,
	Executive a copy of such amendment. Moreover, notwithstanding anything in this Agreement to the
	contrary, if Executive is deemed to be a specified employee for purposes of Section 409A, no
	severance payment or other payments pursuant to, or contemplated by, this Agreement that would
	otherwise result in excise taxes under Section 409A shall be made to Executive from the Company
	until the amount of time has elapsed that is necessary to avoid incurring excise taxes under
	Section 409A. Should this result in a delay of payments to Executive, on the first day any such
	payments may be made without Executive incurring an excise tax pursuant to Section 409A (the 409A
	Payment Date), the Company shall begin to make such payments as described in this Agreement,
	provided that any amounts that would have been payable earlier but for the application of this
	Section 24, shall be paid in a lump-sum on the 409A Payment Date.
	19
 
	 
	     IN WITNESS WHEREOF, this Agreement is EXECUTED as of the date first set forth above and
	effective as set forth therein.
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	WASTE MANAGEMENT, INC.
	 
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	Jeff Harris
 
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	(The Company)
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	(Executive)
 
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	By: 
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	/s/ Jimmy LaValley
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	Home Address
 
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	Jimmy LaValley
 
	Senior Vice President & Chief People Officer
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	20