Exhibit 10.64

CONSULTING AGREEMENT
Mr. John L. Gigerich

CONSULTING AGREEMENT (this ‘‘Agreement’’), dated as of July 1, 2004 (‘‘Effective
Date’’), by and between Nalco Company, a Delaware corporation (the ‘‘Company’’),
and Mr. John L. Gigerich (‘‘Consultant’’).

B   A   C   K   G   R   O   U   N   D:

The Company and Consultant desire to enter into this Agreement, effective as of
the Effective Date, to set forth the terms and conditions of Consultant’s
consulting relationship with the Company; and

The Company and Consultant agree that the terms and provisions of this Agreement
shall supersede any of terms and conditions that might have existed between the
parties.

In consideration of the mutual covenants and promises contained herein, the
Company and Consultant, agree:

1.    Consulting Relationship.    Subject to the terms and conditions set forth
herein, the Company shall retain Consultant to perform the following services
for a period of up to two years: supervise the completion of pending SAP rollout
and other information services projects, supervise the completion of a financial
shared services center and supervise the reorganization of the customer services
center. During the Term, Consultant shall also perform such additional duties as
may from time to time be assigned to him by the Chief Executive Officer
(‘‘CEO’’). Consultant shall have the consulting title of Vice President,
Administration. Collectively, Consultant’s activities under this Agreement shall
be referred to as the Services. Consultant is not an employee of the Company and
is and shall at all times be an independent contractor. Consultant is not an
employee and shall not be entitled to any benefits, medical insurance, worker’
compensation or compensation benefits that are available to employees of the
Company either by plan, agreement or policy, and the Company shall not withhold
any taxes or other amounts from the amounts paid hereunder or otherwise treat
Consultant as if he were an employee. Consultant’s rights to payments and other
amounts from the Company shall be limited to those contractual rights provided
in this Agreement.

2.    Performance.    During the Term, Consultant will serve the Company
faithfully and to the best of his ability and will devote his full business
time, energy, experience and talents to the business of the Company, provided
that Consultant has pending part-time commitments (which will not interrupt his
performance of the Services) which he is permitted to complete on or before
October 31, 2004. At his option, Consultant, upon thirty (30) days advance
written notice to the Company may reduce his service level hereunder by up to
50% (the ‘‘Reduced Services’’).

3.    Term.    Subject to: the extension for purposes of the Management Equity
Plan described in Section 4 below, the term of this Agreement shall begin upon
the Effective Date and shall initially continue for a period of no more than two
(2) years from such date (the ‘‘Term’’). During the Term, Consultant may
terminate this Agreement at his will by providing fifteen (15) days notice to
the Company, and the Company may immediately terminate this Agreement by
providing notice to Consultant (‘‘At Will Termination’’).

In the event of an At Will Termination, all obligations under this Agreement
shall end on such termination.

4.    Management Equity Plan.    (a) The Company has provided Consultant with
the following documents: (i) an offering memorandum describing an opportunity to
purchase certain units (the ‘‘A Units’’) in the Company’s current ultimate
parent, Nalco LLC (the ‘‘Management Equity Plan’’), (ii) a Limited Liability
Company Agreement for Nalco LLC, (iii) a Registration Rights Agreement for Nalco
LLC, (iv) a Management Members Agreement for A Units and (v) a Subscription
Agreement permitting Consultant the opportunity of purchasing $200,000 of A
Units pursuant to the Management

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Equity Plan and (vi) 2004 Unit Plan (collectively the ‘‘Management Equity Plan
Agreements’’). Consultant may purchase $200,000 in A Units subject to the
Management Equity Plan, by executing the Management Equity Plan Agreements,
making the payment to Nalco LLC for $200,000 and executing this Agreement (the
‘‘Consultant A Units’’). (b) Consultant acknowledges that the Management Equity
Plan was initially created for employees of the Company and that the Management
Equity Plan Agreements refer to the participants as employees of the Company,
but that notwithstanding any such references Consultant shall not be an employee
of the Company or Nalco LLC and shall not have any rights as an employee by
reason of his participation in the Management Equity Plan or his execution of
the Management Equity Plan Agreements. (c) In the event that Consultant elects
Reduced Services pursuant to Section 2 during the Term, the Company shall have
the option to purchase from Consultant a pro-rata percentage of the Consultant A
Units at their then fair market value (as determined pursuant to the Management
Equity Plan) where such pro-rata percentage equals the percentage reduction in
Services elected by Consultant. Further, in the event Consultant elects to
terminate this Agreement at his will during the Term, the Company shall have the
option to purchase all of the Consultant A Units at their then fair market
value. (d) These call options are in addition to the call options in the
Management Equity Plan Section 1.04 of the Management Members Agreement permits
the participants the opportunity to receive a bonus from the Company in the
event of certain conditions, including an imposition of a certain tax on A Units
and continued service to the Company on January 1, 2007 (the ‘‘Contingent
Bonus’’). In the event that the certain tax described in the Contingent Bonus is
imposed upon Consultant, the Company shall continue to pay Consultant $1 per
month for the period July 1, 2006, through and including January 1, 2007 (the
‘‘Interim Period’’), and this Agreement shall be extended during that Interim
Period to permit Consultant the opportunity to receive the Contingent Bonus on
or about January 1, 2007, provided that Consultant otherwise meets the terms and
conditions of the Contingent Bonus. During the Interim Period, Consultant shall
have no obligation to provide Services to the Company.

5.    Compensation and Benefits.    During the Term, the Consultant shall be
entitled to:

[spacer.gif] [spacer.gif] a.  a Base Payments, payable in equal twice monthly
installments of $13,959 on the 15th and last day of the month in accordance with
the Company's procedures (without withholdings), (a gross annual rate of
$335,000 US Dollars);

[spacer.gif] [spacer.gif] b.  a payment of an amount equivalent to the amount
that would have been payable to Consultant under the Company incentive plan (had
Consultant been an employee) at the time such payment would have been required,
such incentive currently known as the Management Incentive Plan (‘‘MIP’’), with
a target award of 45% of a base amount of $250,000 — for partial years, the
payment required under this Section 5(b) shall be made on a pro-rata basis;

[spacer.gif] [spacer.gif] c.  the same holidays as employees of the Company;

[spacer.gif] [spacer.gif] d.  three weeks of vacation during each calendar year,
pro-rata for partial calendar years, without affecting the Company’s Base
Payment obligation and for any unused vacation at the end of the Term, the
Company shall pay Consultant at the same annual rate for a period equal to the
period of the unused vacation; and

[spacer.gif] [spacer.gif] h.  be reimbursed by the Company for all reasonable
expenses actually incurred by the Consultant in connection with the performance
of the services hereunder in accordance with policies established by the Company
from time to time and upon presentation of appropriate documentation.

6.    Consultant’s Covenants

[spacer.gif] [spacer.gif] a.  During the Term hereunder and for a period of two
(2) years thereafter, (1) Consultant shall not, within any jurisdiction or
marketing area in which the Company (or its Subsidiaries (as such term is
defined below)) is doing business, directly or indirectly, own, manage, operate,
control, consult with, be employed by, or participate in the ownership,
management, operation or control of any business of the type and character
engaged in or competitive with that conducted by the Company (or its
Subsidiaries); (2) Consultant shall not, directly or indirectly, employ, solicit
for employment or otherwise contract for the services of any individual who is
an employee of the Company (or

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[spacer.gif] [spacer.gif]   its Subsidiaries and Affiliates (as such term is
defined below)) at the time of this Agreement or who shall subsequently become
an employee of the Company (or its Subsidiaries and Affiliates); and
(3) Consultant will not solicit, in competition with the Company, any person who
is, or was at any time within the twelve months prior to the Consultant’s
termination of this Agreement, a customer of the business conducted by the
Company (or its Subsidiaries).

[spacer.gif] [spacer.gif] b.  During the Term and thereafter, (1) the Consultant
will not divulge, transmit or otherwise disclose (except as legally compelled by
court order, and then only to the extent required, after prompt notice to the
Company of any such order), directly or indirectly, other than in the regular
and proper course of business of the Company, any confidential knowledge or
information regarding the operations, finances, organization or employees of the
Company (or its Subsidiaries and Affiliates) or confidential or secret
processes, services, techniques, customers or plans of the Company (or its
Subsidiaries and Affiliates); and (2) Consultant will not use, directly or
indirectly, any confidential information for the benefit of anyone other than
the Company (or its Subsidiaries and Affiliates); provided, however, that the
Consultant has no obligation, express or implied, to refrain from using or
disclosing to others any such knowledge or information which is or hereafter
shall become available to the public other than through disclosure by
Consultant. All rights to new processes, techniques, know-how, inventions,
plans, products, patents and devices developed, made or invented by the
Consultant, alone or with others, while a consultant for the Company which are
related to the business of the Company (or its Subsidiaries and Affiliates)
shall be and become the sole property of the Company, unless released in writing
by the Company, and Consultant hereby assigns all such rights to the Company.
All files, records, correspondence, memoranda, notes or other documents
(including, without limitation, those in computer-readable form) or property
relating or belonging to the Company, whether prepared by Consultant or
otherwise coming in Consultant’s possession in the course of the performance of
The Services under this Agreement, shall be the exclusive property of Company
and shall be delivered to Company and not retained by Consultant (including,
without limitations, any copies thereof) upon termination of this Agreement for
any reason whatsoever.

[spacer.gif] [spacer.gif] c.  Consultant will communicate and disclose in
writing to the Company both during the term of this Agreement and thereafter,
all inventions, discoveries, improvements, machines, devices, designs,
processes, products, software, treatments, formulae, mixtures and/or compounds
whether patentable or not as well as patents and patent applications (all
collectively referred to as ‘‘Inventions’’) made, conceived, developed or
acquired by Consultant or under which Consultant acquired the right to grant
licenses or become licensed, whether alone or jointly with others, during the
Term. All of Consultant’s right, title and interest in, to and under such
Inventions, including licenses and right to grant licenses shall be the sole
property of the Company and the same are hereby assigned to the Company. Any
Invention disclosed by Consultant to anyone within one (1) year after the
termination of this Agreement, which relates to any matters pertaining to,
applicable to, or useful in connection with, the business of the Company shall
be deemed to have been made or conceived or developed by Consultant during the
Term, unless proved by Consultant to have been made and conceived and developed
after the termination of this Agreement.

[spacer.gif] [spacer.gif] d.  For all of Consultant’s Inventions, Consultant
will, upon request of the Company, during the term of this Agreement and
thereafter:

(1)    execute and deliver all documents which the Company shall deem necessary
or appropriate to assign, transfer and convey to the Company, all of
Consultant’s right, title, interest in and to such Inventions, and enable the
Company to file and prosecute applications for Letters Patent of the United
States and any foreign countries on Inventions as to which the Company wishes to
file patent applications; and

(2)    do all other things (including the giving of evidence in suits and other
proceedings) which the Company shall deem necessary or appropriate to obtain,
maintain, and assert patents for any and all such Inventions and to assert its
rights in any Inventions not patented.

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[spacer.gif] [spacer.gif] e.  Consultant hereby assigns to the Company the
copyright in all works prepared by the Consultant which are either:

[spacer.gif] [spacer.gif] [spacer.gif] (1)  within the scope of the Services;
or,

[spacer.gif] [spacer.gif] [spacer.gif] (2)  based upon information acquired from
the Company not normally made available to the public; or,

7.    Notices.    Any notices required or permitted hereunder shall be in
writing and shall be deemed to have been given when personally delivered or when
mailed, certified or registered mail, postage prepaid, to the following
addresses:

If to Consultant:

Mr. John Gigerich

If to the Company:

Nalco Company
1601 West Diehl Road
Naperville, Illinois 60563-1198

Attention: General Counsel

8.    General.

[spacer.gif] [spacer.gif] a.  Governing Law.    The validity, interpretation,
construction and performance of this Agreement shall be governed by the laws of
the State of Illinois applicable to contracts executed and to be performed
entirely within said State.

[spacer.gif] [spacer.gif] b.  Construction and Severability.    If any provision
of this Agreement shall be held invalid, illegal or unenforceable in any
jurisdiction, the validity, legality and enforceability of the remaining
provisions contained herein shall not in any way be affected or impaired, and
the parties undertake to implement all efforts which are necessary, desirable
and sufficient to amend, supplement or substitute all and any such invalid,
illegal or unenforceable provisions with enforceable and valid provisions which
would produce as nearly as may be possible the result previously intended by the
parties without renegotiation of any material terms and conditions stipulated
herein.

[spacer.gif] [spacer.gif] c.  Assignability.    Consultant may not assign his
interest in or delegate his duties under this Agreement. This Agreement is for
the Services of Consultant, personally, and the Services to be rendered by him
under this Agreement must be rendered by him and no other person. Consultant
represents and warrants to the Company that Consultant has no contracts or
agreements of any nature that Consultant has entered into with any other person,
firm or corporation that contain any restraints on Consultant's ability to
perform his obligations under this Agreement. This Agreement shall be binding
upon and inure to the benefit of the Company and its successors and assigns.

[spacer.gif] [spacer.gif] d.  Compliance with Rules and Policies.    Consultant
shall perform all Services in all material respects in accordance with the
applicable policies, procedures and rules established by the Company, including,
but not limited to, the By-Laws of the Company and the Company’s Code of Ethical
Business Practices. In addition, Consultant, where applicable, shall comply in
all material respects with all laws, rules and regulations that are generally
applicable to the Company, and its employees, directors and officers.

[spacer.gif] [spacer.gif] e.  Arbitration.    (1) The parties shall use their
reasonable best efforts and good will to settle all disputes by amicable
negotiations. The Company and Consultant agree that any dispute, controversy or
claim arising out of, relating to or in connection with this Agreement, or the
termination of this Agreement or the termination of Consultant's Services
hereunder that is not amicably resolved by negotiation shall be finally settled
by arbitration, under and in accordance with the Rules of Commercial Arbitration
of the American Arbitration Association then in effect, as set forth below, in
Chicago, Illinois, or such other place agreed to by the parties.

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[spacer.gif] [spacer.gif] [spacer.gif] (2)  Any such arbitration shall be heard
before a panel consisting of one (1) to three (3) arbitrators, each of whom
shall be impartial. All arbitrators shall be appointed in the first instance by
agreement between the parties. If the parties cannot agree upon a single
arbitrator, each of the Company and Consultant shall be entitled to appoint one
arbitrator. These two appointed arbitrators shall then appoint a third
arbitrator by their mutual agreement.

[spacer.gif] [spacer.gif] [spacer.gif] (3)  The award of the arbitrator or panel
of arbitrators shall be in writing and state the reasons upon which it is based.
It may be made public only with the consent of the parties. Any monetary award
shall be in U.S. dollars.

[spacer.gif] [spacer.gif] [spacer.gif] (4)  Each of the parties hereto accepts
the exclusive jurisdiction of the arbitrator or panel of arbitrators appointed
in accordance herewith. The award of the arbitrator or arbitral panel shall be
final and binding on the parties, who undertake to carry it out without delay.
Judgment on the award rendered by the arbitrator or arbitral panel may be
entered in any court having jurisdiction thereof.

[spacer.gif] [spacer.gif] [spacer.gif] (5)  The arbitrator or panel of
arbitrators may also award interim relief and grant specific performance.
Notwithstanding the foregoing, each party reserves the right to apply to any
court of competent jurisdiction for any provisional measure, including
injunctive relief, to enforce the terms of this Agreement.

[spacer.gif] [spacer.gif] [spacer.gif] (6)  The Company and Consultant shall
each pay fifty percent (50%) of all costs of the arbitrator or panel of
arbitrators and of the American Arbitration Association. The arbitrator may
award to the party prevailing on any matter or issue within the arbitration, his
or its legal fees and disbursements (including the costs of the American
Arbitration Association and the arbitrator) related to such matter or issue
provided that the party is successful overall on a material portion of the
arbitration, provided, however, the Company shall only be entitled to an award
of legal fees and disbursements if the resolution of any such contest or dispute
includes a finding that Consultant's claims in such contest or dispute were
frivolous or brought in bad faith.

[spacer.gif] [spacer.gif] f.  Entire Agreement: Modification.    This Agreement
constitutes the entire agreement of the parties hereto with respect to the
subject matter hereof, supersedes all prior agreements and undertakings, both
written and oral, and may not be modified or amended in any way except in
writing by the parties hereto.

[spacer.gif] [spacer.gif] g.  Survival.    The covenants set forth in Section 
shall survive and shall continue to be binding upon the Consultant
notwithstanding the termination of this Agreement for any reason whatsoever.

[spacer.gif] [spacer.gif] h.  Waiver.    No waiver by either party hereto of any
of the requirements imposed by this Agreement on, or any breach of any condition
or provision of this Agreement to be performed by, the other party shall be
deemed a waiver of a similar or dissimilar requirement, provision or condition
of this Agreement at the same or any prior or subsequent time. Any such waiver
shall be express and in writing, and there shall be no waiver by conduct.

[spacer.gif] [spacer.gif] i.  Counterparts.    This Agreement may be executed in
two or more counterparts, all of which taken together shall constitute one
instrument.

IN WITNESS WHEREOF, the parties hereto, intending to be legally bound, have
hereunto executed this Agreement as of the day and year first written above.

[spacer.gif] [spacer.gif] [spacer.gif] [spacer.gif] NALCO COMPANY

[spacer.gif] [spacer.gif] [spacer.gif] Date: July 1, 2004                    
[spacer.gif] /s/ Stephen N. Landsman            
Name:    Stephen N. Landsman
Title:       Vice President

[spacer.gif] [spacer.gif] [spacer.gif] [spacer.gif] CONSULTANT

[spacer.gif] [spacer.gif] [spacer.gif] Date: July 1, 2004                    
[spacer.gif] /s/ John L. Gigerich                     

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